diff --git a/ext/README.md b/ext/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..933a33d053bf6704be350bc3464a6fd6f02fd2a1
--- /dev/null
+++ b/ext/README.md
@@ -0,0 +1,8 @@
+## Loadable Extensions
+
+Various [loadable extensions](https://www.sqlite.org/loadext.html) for
+SQLite are found in subfolders.
+
+Most subfolders are dedicated to a single loadable extension (for
+example FTS5, or RTREE).  But the misc/ subfolder contains a collection
+of smaller single-file extensions.
diff --git a/ext/expert/README.md b/ext/expert/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..28886fd1f2d75d5074c9287fc3aef0cbfb189db4
--- /dev/null
+++ b/ext/expert/README.md
@@ -0,0 +1,83 @@
+## SQLite Expert Extension
+
+This folder contains code for a simple system to propose useful indexes
+given a database and a set of SQL queries. It works as follows:
+
+  1. The user database schema is copied to a temporary database.
+
+  1. All SQL queries are prepared against the temporary database.
+     Information regarding the WHERE and ORDER BY clauses, and other query
+     features that affect index selection are recorded.
+
+  1. The information gathered in step 2 is used to create candidate 
+     indexes - indexes that the planner might have made use of in the previous
+     step, had they been available.
+
+  1. A subset of the data in the user database is used to generate statistics
+     for all existing indexes and the candidate indexes generated in step 3
+     above.
+
+  1. The SQL queries are prepared a second time. If the planner uses any
+     of the indexes created in step 3, they are recommended to the user.
+
+# C API
+
+The SQLite expert C API is defined in sqlite3expert.h. Most uses will proceed
+as follows:
+
+  1. An sqlite3expert object is created by calling **sqlite3\_expert\_new()**.
+     A database handle opened by the user is passed as an argument.
+
+  1. The sqlite3expert object is configured with one or more SQL statements
+     by making one or more calls to **sqlite3\_expert\_sql()**. Each call may
+     specify a single SQL statement, or multiple statements separated by
+     semi-colons.
+  
+  1. Optionally, the **sqlite3\_expert\_config()** API may be used to 
+     configure the size of the data subset used to generate index statistics.
+     Using a smaller subset of the data can speed up the analysis.
+
+  1. **sqlite3\_expert\_analyze()** is called to run the analysis.
+
+  1. One or more calls are made to **sqlite3\_expert\_report()** to extract
+     components of the results of the analysis.
+
+  1. **sqlite3\_expert\_destroy()** is called to free all resources.
+
+Refer to comments in sqlite3expert.h for further details.
+
+# sqlite3_expert application
+
+The file "expert.c" contains the code for a command line application that
+uses the API described above. It can be compiled with (for example):
+
+<pre>
+  gcc -O2 sqlite3.c expert.c sqlite3expert.c -o sqlite3_expert
+</pre>
+
+Assuming the database is named "test.db", it can then be run to analyze a
+single query:
+
+<pre>
+  ./sqlite3_expert -sql &lt;sql-query&gt; test.db
+</pre>
+
+Or an entire text file worth of queries with:
+
+<pre>
+  ./sqlite3_expert -file &lt;text-file&gt; test.db
+</pre>
+
+By default, sqlite3\_expert generates index statistics using all the data in
+the user database. For a large database, this may be prohibitively time
+consuming. The "-sample" option may be used to configure sqlite3\_expert to
+generate statistics based on an integer percentage of the user database as
+follows:
+
+<pre>
+  # Generate statistics based on 25% of the user database rows:
+  ./sqlite3_expert -sample 25 -sql &lt;sql-query&gt; test.db
+
+  # Do not generate any statistics at all:
+  ./sqlite3_expert -sample 0 -sql &lt;sql-query&gt; test.db
+</pre>
diff --git a/ext/expert/expert.c b/ext/expert/expert.c
new file mode 100644
index 0000000000000000000000000000000000000000..051480f896025877c00bfd7c7f569980eb5556d3
--- /dev/null
+++ b/ext/expert/expert.c
@@ -0,0 +1,156 @@
+/*
+** 2017 April 07
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+*/
+
+
+#include <sqlite3.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "sqlite3expert.h"
+
+
+static void option_requires_argument(const char *zOpt){
+  fprintf(stderr, "Option requires an argument: %s\n", zOpt);
+  exit(-3);
+}
+
+static int option_integer_arg(const char *zVal){
+  return atoi(zVal);
+}
+
+static void usage(char **argv){
+  fprintf(stderr, "\n");
+  fprintf(stderr, "Usage %s ?OPTIONS? DATABASE\n", argv[0]);
+  fprintf(stderr, "\n");
+  fprintf(stderr, "Options are:\n");
+  fprintf(stderr, "  -sql SQL   (analyze SQL statements passed as argument)\n");
+  fprintf(stderr, "  -file FILE (read SQL statements from file FILE)\n");
+  fprintf(stderr, "  -verbose LEVEL (integer verbosity level. default 1)\n");
+  fprintf(stderr, "  -sample PERCENT (percent of db to sample. default 100)\n");
+  exit(-1);
+}
+
+static int readSqlFromFile(sqlite3expert *p, const char *zFile, char **pzErr){
+  FILE *in = fopen(zFile, "rb");
+  long nIn;
+  size_t nRead;
+  char *pBuf;
+  int rc;
+  if( in==0 ){
+    *pzErr = sqlite3_mprintf("failed to open file %s\n", zFile);
+    return SQLITE_ERROR;
+  }
+  fseek(in, 0, SEEK_END);
+  nIn = ftell(in);
+  rewind(in);
+  pBuf = sqlite3_malloc64( nIn+1 );
+  nRead = fread(pBuf, nIn, 1, in);
+  fclose(in);
+  if( nRead!=1 ){
+    sqlite3_free(pBuf);
+    *pzErr = sqlite3_mprintf("failed to read file %s\n", zFile);
+    return SQLITE_ERROR;
+  }
+  pBuf[nIn] = 0;
+  rc = sqlite3_expert_sql(p, pBuf, pzErr);
+  sqlite3_free(pBuf);
+  return rc;
+}
+
+int main(int argc, char **argv){
+  const char *zDb;
+  int rc = 0;
+  char *zErr = 0;
+  int i;
+  int iVerbose = 1;               /* -verbose option */
+
+  sqlite3 *db = 0;
+  sqlite3expert *p = 0;
+
+  if( argc<2 ) usage(argv);
+  zDb = argv[argc-1];
+  if( zDb[0]=='-' ) usage(argv);
+  rc = sqlite3_open(zDb, &db);
+  if( rc!=SQLITE_OK ){
+    fprintf(stderr, "Cannot open db file: %s - %s\n", zDb, sqlite3_errmsg(db));
+    exit(-2);
+  }
+
+  p = sqlite3_expert_new(db, &zErr);
+  if( p==0 ){
+    fprintf(stderr, "Cannot run analysis: %s\n", zErr);
+    rc = 1;
+  }else{
+    for(i=1; i<(argc-1); i++){
+      char *zArg = argv[i];
+      int nArg;
+      if( zArg[0]=='-' && zArg[1]=='-' && zArg[2]!=0 ) zArg++;
+      nArg = (int)strlen(zArg);
+      if( nArg>=2 && 0==sqlite3_strnicmp(zArg, "-file", nArg) ){
+        if( ++i==(argc-1) ) option_requires_argument("-file");
+        rc = readSqlFromFile(p, argv[i], &zErr);
+      }
+
+      else if( nArg>=3 && 0==sqlite3_strnicmp(zArg, "-sql", nArg) ){
+        if( ++i==(argc-1) ) option_requires_argument("-sql");
+        rc = sqlite3_expert_sql(p, argv[i], &zErr);
+      }
+
+      else if( nArg>=3 && 0==sqlite3_strnicmp(zArg, "-sample", nArg) ){
+        int iSample;
+        if( ++i==(argc-1) ) option_requires_argument("-sample");
+        iSample = option_integer_arg(argv[i]);
+        sqlite3_expert_config(p, EXPERT_CONFIG_SAMPLE, iSample);
+      }
+
+      else if( nArg>=2 && 0==sqlite3_strnicmp(zArg, "-verbose", nArg) ){
+        if( ++i==(argc-1) ) option_requires_argument("-verbose");
+        iVerbose = option_integer_arg(argv[i]);
+      }
+
+      else{
+        usage(argv);
+      }
+    }
+  }
+
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_expert_analyze(p, &zErr);
+  }
+
+  if( rc==SQLITE_OK ){
+    int nQuery = sqlite3_expert_count(p);
+    if( iVerbose>0 ){
+      const char *zCand = sqlite3_expert_report(p,0,EXPERT_REPORT_CANDIDATES);
+      fprintf(stdout, "-- Candidates -------------------------------\n");
+      fprintf(stdout, "%s\n", zCand);
+    }
+    for(i=0; i<nQuery; i++){
+      const char *zSql = sqlite3_expert_report(p, i, EXPERT_REPORT_SQL);
+      const char *zIdx = sqlite3_expert_report(p, i, EXPERT_REPORT_INDEXES);
+      const char *zEQP = sqlite3_expert_report(p, i, EXPERT_REPORT_PLAN);
+      if( zIdx==0 ) zIdx = "(no new indexes)\n";
+      if( iVerbose>0 ){
+        fprintf(stdout, "-- Query %d ----------------------------------\n",i+1);
+        fprintf(stdout, "%s\n\n", zSql);
+      }
+      fprintf(stdout, "%s\n%s\n", zIdx, zEQP);
+    }
+  }else{
+    fprintf(stderr, "Error: %s\n", zErr ? zErr : "?");
+  }
+
+  sqlite3_expert_destroy(p);
+  sqlite3_free(zErr);
+  return rc;
+}
diff --git a/ext/expert/expert1.test b/ext/expert/expert1.test
new file mode 100644
index 0000000000000000000000000000000000000000..0c3b512af0ab45a2c4c87ff4518fd614ad7b608b
--- /dev/null
+++ b/ext/expert/expert1.test
@@ -0,0 +1,609 @@
+# 2009 Nov 11
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# TESTRUNNER: shell
+#
+# The focus of this file is testing the CLI shell tool. Specifically,
+# the ".recommend" command.
+#
+#
+
+# Test plan:
+#
+#
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+}
+source $testdir/tester.tcl
+set testprefix expert1
+
+if {[info commands sqlite3_expert_new]==""} {
+  finish_test
+  return
+}
+
+
+set CLI [test_binary_name sqlite3]
+set CMD [test_binary_name sqlite3_expert]
+
+proc squish {txt} {
+  regsub -all {[[:space:]]+} $txt { }
+}
+
+proc do_setup_rec_test {tn setup sql res} {
+  reset_db
+  if {[info exists ::set_main_db_name]} {
+    dbconfig_maindbname_icecube db
+  }
+  db eval $setup
+  uplevel [list do_rec_test $tn $sql $res]
+}
+
+foreach {tn setup} {
+  1 {
+    if {![file executable $CMD]} { continue }
+
+    proc do_rec_test {tn sql res} {
+      set res [squish [string trim $res]]
+      set tst [subst -nocommands { 
+        squish [string trim [exec $::CMD -verbose 0 -sql {$sql;} test.db]]
+      }]
+      uplevel [list do_test $tn $tst $res]
+    }
+  }
+  2 {
+    if {[info commands sqlite3_expert_new]==""} { continue }
+
+    proc do_rec_test {tn sql res} {
+      set expert [sqlite3_expert_new db]
+      $expert sql $sql
+      $expert analyze
+
+      set result [list]
+      for {set i 0} {$i < [$expert count]} {incr i} {
+        set idx [string trim [$expert report $i indexes]]
+        if {$idx==""} {set idx "(no new indexes)"}
+        lappend result $idx
+        lappend result [string trim [$expert report $i plan]]
+      }
+
+      $expert destroy
+
+      set tst [subst -nocommands {set {} [squish [join {$result}]]}]
+      uplevel [list do_test $tn $tst [string trim [squish $res]]]
+    }
+  }
+  3 {
+    if {[info commands sqlite3_expert_new]==""} { continue }
+    set ::set_main_db_name 1
+  }
+  4 {
+    if {![file executable $CLI]} { continue }
+
+    proc do_rec_test {tn sql res} {
+      set res [squish [string trim $res]]
+      set tst [subst -nocommands { 
+        squish [string trim [exec $::CLI test.db ".expert" {$sql;}]]
+      }]
+      uplevel [list do_test $tn $tst $res]
+    }
+  }
+} {
+
+  eval $setup
+
+
+do_setup_rec_test $tn.1 { CREATE TABLE t1(a, b, c) } {
+  SELECT * FROM t1
+} {
+  (no new indexes)
+  SCAN t1
+}
+
+do_setup_rec_test $tn.2 {
+  CREATE TABLE t1(a, b, c);
+} {
+  SELECT * FROM t1 WHERE b>?;
+} {
+  CREATE INDEX t1_idx_00000062 ON t1(b);
+  SEARCH t1 USING INDEX t1_idx_00000062 (b>?)
+}
+
+do_setup_rec_test $tn.3 {
+  CREATE TABLE t1(a, b, c);
+} {
+  SELECT * FROM t1 WHERE b COLLATE nocase BETWEEN ? AND ?
+} {
+  CREATE INDEX t1_idx_3e094c27 ON t1(b COLLATE NOCASE);
+  SEARCH t1 USING INDEX t1_idx_3e094c27 (b>? AND b<?)
+}
+
+do_setup_rec_test $tn.4 {
+  CREATE TABLE t1(a, b, c);
+} {
+  SELECT a FROM t1 ORDER BY b;
+} {
+  CREATE INDEX t1_idx_00000062 ON t1(b);
+  SCAN t1 USING INDEX t1_idx_00000062
+}
+
+do_setup_rec_test $tn.5 {
+  CREATE TABLE t1(a, b, c);
+} {
+  SELECT a FROM t1 WHERE a=? ORDER BY b;
+} {
+  CREATE INDEX t1_idx_000123a7 ON t1(a, b);
+  SEARCH t1 USING COVERING INDEX t1_idx_000123a7 (a=?)
+}
+
+if 0 {
+do_setup_rec_test $tn.6 {
+  CREATE TABLE t1(a, b, c);
+} {
+  SELECT min(a) FROM t1
+} {
+  CREATE INDEX t1_idx_00000061 ON t1(a);
+  SEARCH t1 USING COVERING INDEX t1_idx_00000061
+}
+}
+
+do_setup_rec_test $tn.7 {
+  CREATE TABLE t1(a, b, c);
+} {
+  SELECT * FROM t1 ORDER BY a, b, c;
+} {
+  CREATE INDEX t1_idx_033e95fe ON t1(a, b, c);
+  SCAN t1 USING COVERING INDEX t1_idx_033e95fe
+}
+
+#do_setup_rec_test $tn.1.8 {
+#  CREATE TABLE t1(a, b, c);
+#} {
+#  SELECT * FROM t1 ORDER BY a ASC, b COLLATE nocase DESC, c ASC;
+#} {
+#  CREATE INDEX t1_idx_5be6e222 ON t1(a, b COLLATE NOCASE DESC, c);
+#  0|0|0|SCAN t1 USING COVERING INDEX t1_idx_5be6e222
+#}
+
+do_setup_rec_test $tn.8.1 {
+  CREATE TABLE t1(a COLLATE NOCase, b, c);
+} {
+  SELECT * FROM t1 WHERE a=?
+} {
+  CREATE INDEX t1_idx_00000061 ON t1(a);
+  SEARCH t1 USING INDEX t1_idx_00000061 (a=?)
+}
+do_setup_rec_test $tn.8.2 {
+  CREATE TABLE t1(a, b COLLATE nocase, c);
+} {
+  SELECT * FROM t1 ORDER BY a ASC, b DESC, c ASC;
+} {
+  CREATE INDEX t1_idx_5cb97285 ON t1(a, b DESC, c);
+  SCAN t1 USING COVERING INDEX t1_idx_5cb97285
+}
+
+
+# Tables with names that require quotes.
+#
+do_setup_rec_test $tn.9.1 {
+  CREATE TABLE "t t"(a, b, c);
+} {
+  SELECT * FROM "t t" WHERE a=?
+} {
+  CREATE INDEX "t t_idx_00000061" ON "t t"(a);
+  SEARCH t t USING INDEX t t_idx_00000061 (a=?) 
+}
+
+do_setup_rec_test $tn.9.2 {
+  CREATE TABLE "t t"(a, b, c);
+} {
+  SELECT * FROM "t t" WHERE b BETWEEN ? AND ?
+} {
+  CREATE INDEX "t t_idx_00000062" ON "t t"(b);
+  SEARCH t t USING INDEX t t_idx_00000062 (b>? AND b<?)
+}
+
+# Columns with names that require quotes.
+#
+do_setup_rec_test $tn.10.1 {
+  CREATE TABLE t3(a, "b b", c);
+} {
+  SELECT * FROM t3 WHERE "b b" = ?
+} {
+  CREATE INDEX t3_idx_00050c52 ON t3('b b');
+  SEARCH t3 USING INDEX t3_idx_00050c52 (b b=?)
+}
+
+do_setup_rec_test $tn.10.2 {
+  CREATE TABLE t3(a, "b b", c);
+} {
+  SELECT * FROM t3 ORDER BY "b b"
+} {
+  CREATE INDEX t3_idx_00050c52 ON t3('b b');
+  SCAN t3 USING INDEX t3_idx_00050c52
+}
+
+# Transitive constraints
+#
+do_setup_rec_test $tn.11.1 {
+  CREATE TABLE t5(a, b);
+  CREATE TABLE t6(c, d);
+} {
+  SELECT * FROM t5, t6 WHERE a=? AND b=c AND c=?
+} {
+  CREATE INDEX t5_idx_000123a7 ON t5(a, b);
+  CREATE INDEX t6_idx_00000063 ON t6(c);
+  SEARCH t6 USING INDEX t6_idx_00000063 (c=?) 
+  SEARCH t5 USING COVERING INDEX t5_idx_000123a7 (a=? AND b=?)
+}
+
+# OR terms.
+#
+do_setup_rec_test $tn.12.1 {
+  CREATE TABLE t7(a, b);
+} {
+  SELECT * FROM t7 WHERE a=? OR b=?
+} {
+  CREATE INDEX t7_idx_00000062 ON t7(b);
+  CREATE INDEX t7_idx_00000061 ON t7(a);
+  MULTI-INDEX OR
+    INDEX 1
+      SEARCH t7 USING INDEX t7_idx_00000061 (a=?) 
+    INDEX 2
+      SEARCH t7 USING INDEX t7_idx_00000062 (b=?)
+}
+
+# rowid terms.
+#
+do_setup_rec_test $tn.13.1 {
+  CREATE TABLE t8(a, b);
+} {
+  SELECT * FROM t8 WHERE rowid=?
+} {
+  (no new indexes)
+  SEARCH t8 USING INTEGER PRIMARY KEY (rowid=?)
+}
+do_setup_rec_test $tn.13.2 {
+  CREATE TABLE t8(a, b);
+} {
+  SELECT * FROM t8 ORDER BY rowid
+} {
+  (no new indexes)
+  SCAN t8
+}
+do_setup_rec_test $tn.13.3 {
+  CREATE TABLE t8(a, b);
+} {
+  SELECT * FROM t8 WHERE a=? ORDER BY rowid
+} {
+  CREATE INDEX t8_idx_00000061 ON t8(a); 
+  SEARCH t8 USING INDEX t8_idx_00000061 (a=?)
+}
+
+# Triggers
+#
+do_setup_rec_test $tn.14 {
+  CREATE TABLE t9(a, b, c);
+  CREATE TABLE t10(a, b, c);
+  CREATE TRIGGER t9t AFTER INSERT ON t9 BEGIN
+    UPDATE t10 SET a=new.a WHERE b = new.b;
+  END;
+} {
+  INSERT INTO t9 VALUES(?, ?, ?);
+} {
+  CREATE INDEX t10_idx_00000062 ON t10(b); 
+  SEARCH t10 USING INDEX t10_idx_00000062 (b=?)
+}
+
+do_setup_rec_test $tn.15 {
+  CREATE TABLE t1(a, b);
+  CREATE TABLE t2(c, d);
+
+  WITH s(i) AS ( VALUES(1) UNION ALL SELECT i+1 FROM s WHERE i<100)
+  INSERT INTO t1 SELECT (i-1)/50, (i-1)/20 FROM s;
+
+  WITH s(i) AS ( VALUES(1) UNION ALL SELECT i+1 FROM s WHERE i<100)
+  INSERT INTO t2 SELECT (i-1)/20, (i-1)/5 FROM s;
+} {
+  SELECT * FROM t2, t1 WHERE b=? AND d=? AND t2.rowid=t1.rowid
+} {
+  CREATE INDEX t2_idx_00000064 ON t2(d);
+  SEARCH t2 USING INDEX t2_idx_00000064 (d=?) 
+  SEARCH t1 USING INTEGER PRIMARY KEY (rowid=?)
+}
+
+do_setup_rec_test $tn.16 {
+  CREATE TABLE t1(a, b);
+} {
+  SELECT * FROM t1 WHERE b IS NOT NULL;
+} {
+  (no new indexes)
+  SCAN t1
+}
+
+do_setup_rec_test $tn.17.1 {
+  CREATE TABLE example (A INTEGER, B INTEGER, C INTEGER, PRIMARY KEY (A,B));
+} {
+  SELECT * FROM example WHERE a=?
+} {
+  (no new indexes)
+  SEARCH example USING INDEX sqlite_autoindex_example_1 (A=?)
+}
+do_setup_rec_test $tn.17.2 {
+  CREATE TABLE example (A INTEGER, B INTEGER, C INTEGER, PRIMARY KEY (A,B));
+} {
+  SELECT * FROM example WHERE b=?
+} {
+  CREATE INDEX example_idx_00000042 ON example(B);
+  SEARCH example USING INDEX example_idx_00000042 (B=?)
+}
+do_setup_rec_test $tn.17.3 {
+  CREATE TABLE example (A INTEGER, B INTEGER, C INTEGER, PRIMARY KEY (A,B));
+} {
+  SELECT * FROM example WHERE a=? AND b=?
+} {
+  (no new indexes)
+  SEARCH example USING INDEX sqlite_autoindex_example_1 (A=? AND B=?)
+}
+do_setup_rec_test $tn.17.4 {
+  CREATE TABLE example (A INTEGER, B INTEGER, C INTEGER, PRIMARY KEY (A,B));
+} {
+  SELECT * FROM example WHERE a=? AND b>?
+} {
+  (no new indexes)
+  SEARCH example USING INDEX sqlite_autoindex_example_1 (A=? AND B>?)
+}
+do_setup_rec_test $tn.17.5 {
+  CREATE TABLE example (A INTEGER, B INTEGER, C INTEGER, PRIMARY KEY (A,B));
+} {
+  SELECT * FROM example WHERE a>? AND b=?
+} {
+  CREATE INDEX example_idx_0000cb3f ON example(B, A);
+  SEARCH example USING INDEX example_idx_0000cb3f (B=? AND A>?)
+}
+
+do_setup_rec_test $tn.18.0 {
+  CREATE TABLE SomeObject (
+     a INTEGER PRIMARY KEY,
+     x TEXT GENERATED ALWAYS AS(HEX(a)) VIRTUAL
+  );
+} {
+  SELECT x FROM SomeObject;
+} {
+  (no new indexes)
+  SCAN SomeObject
+}
+do_setup_rec_test $tn.18.1 {
+  CREATE TABLE SomeObject (
+     a INTEGER PRIMARY KEY,
+     x TEXT GENERATED ALWAYS AS(HEX(a)) VIRTUAL
+  );
+} {
+  SELECT * FROM SomeObject WHERE x=?;
+} {
+  CREATE INDEX SomeObject_idx_00000078 ON SomeObject(x);
+  SEARCH SomeObject USING COVERING INDEX SomeObject_idx_00000078 (x=?)
+}
+
+
+do_setup_rec_test $tn.19.0 {
+  CREATE TABLE t1("index");
+} {
+  SELECT * FROM t1 ORDER BY "index";
+} {
+  CREATE INDEX t1_idx_01a7214e ON t1('index');
+  SCAN t1 USING COVERING INDEX t1_idx_01a7214e
+}
+
+ifcapable fts5 {
+  do_setup_rec_test $tn.20.0 {
+    CREATE VIRTUAL TABLE ft USING fts5(a);
+    CREATE TABLE t1(x, y);
+  } {
+    SELECT * FROM ft, t1 WHERE a=x
+  } {
+    CREATE INDEX t1_idx_00000078 ON t1(x);
+    SCAN ft VIRTUAL TABLE INDEX 0:
+    SEARCH t1 USING INDEX t1_idx_00000078 (x=?)
+  }
+}
+
+}
+
+proc do_candidates_test {tn sql res} {
+  set res [squish [string trim $res]]
+
+  set expert [sqlite3_expert_new db]
+  $expert sql $sql
+  $expert analyze
+
+  set candidates [squish [string trim [$expert report 0 candidates]]]
+  $expert destroy
+
+  uplevel [list do_test $tn [list set {} $candidates] $res]
+}
+
+
+reset_db
+do_execsql_test 5.0 {
+  CREATE TABLE t1(a, b);
+  CREATE TABLE t2(c, d);
+
+  WITH s(i) AS ( VALUES(1) UNION ALL SELECT i+1 FROM s WHERE i<100)
+  INSERT INTO t1 SELECT (i-1)/50, (i-1)/20 FROM s;
+
+  WITH s(i) AS ( VALUES(1) UNION ALL SELECT i+1 FROM s WHERE i<100)
+  INSERT INTO t2 SELECT (i-1)/20, (i-1)/5 FROM s;
+
+  CREATE INDEX i1 ON t1( lower(a) );
+}
+do_candidates_test 5.1 {
+  SELECT * FROM t1,t2 WHERE (b=? OR a=?) AND (c=? OR d=?)
+} {
+  CREATE INDEX t1_idx_00000062 ON t1(b); -- stat1: 100 20 
+  CREATE INDEX t1_idx_00000061 ON t1(a); -- stat1: 100 50 
+  CREATE INDEX t2_idx_00000063 ON t2(c); -- stat1: 100 20 
+  CREATE INDEX t2_idx_00000064 ON t2(d); -- stat1: 100 5
+}
+
+do_candidates_test 5.2 {
+  SELECT * FROM t1,t2 WHERE a=? AND b=? AND c=? AND d=?
+} {
+  CREATE INDEX t1_idx_000123a7 ON t1(a, b); -- stat1: 100 50 17
+  CREATE INDEX t2_idx_0001295b ON t2(c, d); -- stat1: 100 20 5
+}
+
+do_execsql_test 5.3 {
+  CREATE INDEX t1_idx_00000061 ON t1(a); -- stat1: 100 50 
+  CREATE INDEX t1_idx_00000062 ON t1(b); -- stat1: 100 20 
+  CREATE INDEX t1_idx_000123a7 ON t1(a, b); -- stat1: 100 50 16
+
+  CREATE INDEX t2_idx_00000063 ON t2(c); -- stat1: 100 20 
+  CREATE INDEX t2_idx_00000064 ON t2(d); -- stat1: 100 5
+  CREATE INDEX t2_idx_0001295b ON t2(c, d); -- stat1: 100 20 5
+
+  ANALYZE;
+  SELECT * FROM sqlite_stat1 ORDER BY 1, 2;
+} {
+  t1 i1 {100 50} 
+  t1 t1_idx_00000061 {100 50} 
+  t1 t1_idx_00000062 {100 20}
+  t1 t1_idx_000123a7 {100 50 17}
+  t2 t2_idx_00000063 {100 20} 
+  t2 t2_idx_00000064 {100 5} 
+  t2 t2_idx_0001295b {100 20 5}
+}
+
+do_catchsql_test 5.4 {
+  SELECT sqlite_expert_rem(123, 123);
+} {1 {no such function: sqlite_expert_rem}}
+do_catchsql_test 5.5 {
+  SELECT sqlite_expert_sample();
+} {1 {no such function: sqlite_expert_sample}}
+
+if 0 {
+do_test expert1-6.0 {
+  catchcmd :memory: {
+.expert
+select base64('');
+.expert
+select name from pragma_collation_list order by name collate uint;
+}
+} {0 {(no new indexes)
+
+SCAN CONSTANT ROW
+
+(no new indexes)
+
+SCAN pragma_collation_list VIRTUAL TABLE INDEX 0:
+USE TEMP B-TREE FOR ORDER BY
+}}
+}
+
+do_execsql_test 6.0 {
+  CREATE TABLE x1(a, b, c, d);
+  CREATE INDEX x1ab ON x1(a, lower(b));
+  CREATE INDEX x1dcba ON x1(d, b+c, a);
+}
+
+do_candidates_test 6.1 {
+  SELECT * FROM x1 WHERE b=? ORDER BY a;
+} {
+  CREATE INDEX x1_idx_0001267f ON x1(b, a); 
+  CREATE INDEX x1_idx_00000062 ON x1(b);
+}
+
+#-------------------------------------------------------------------------
+ifcapable fts5 {
+  reset_db
+  do_execsql_test 7.0 {
+    CREATE VIRTUAL TABLE ft USING fts5(a);
+    CREATE TABLE t1(x, y);
+  }
+  
+  do_candidates_test 7.1 {
+    SELECT * FROM ft, t1 WHERE a=x
+  } {
+    CREATE INDEX t1_idx_00000078 ON t1(x);
+  }
+  
+  register_tcl_module db
+  proc vtab_command {method args} {
+    global G
+  
+    switch -- $method {
+      xConnect {
+        return "CREATE TABLE t1(a, b, c);"
+      }
+  
+      xBestIndex {
+        return [list]
+      }
+  
+      xFilter {
+        return [list sql "SELECT rowid, * FROM t0"]
+      }
+    }
+  
+    return {}
+  }
+  
+  do_execsql_test 7.2 {
+    CREATE TABLE t0(a, b, c);
+    INSERT INTO t0 VALUES(1, 2, 3), (11, 22, 33);
+    CREATE VIRTUAL TABLE t2 USING tcl(vtab_command);
+  }
+  
+  do_execsql_test 7.3 {
+    SELECT * FROM t2
+  } {
+    1 2 3
+    11 22 33
+  }
+  
+  do_candidates_test 7.4 {
+    SELECT * FROM ft, t1 WHERE a=x
+  } {
+    CREATE INDEX t1_idx_00000078 ON t1(x);
+  }
+  
+  do_test 7.5 {
+    set expert [sqlite3_expert_new db]
+    list [catch { $expert sql "SELECT * FROM ft, t2 WHERE b=1" } msg] $msg
+  } {1 {no such table: t2}}
+  $expert destroy
+
+  reset_db
+  do_execsql_test 7.6 {
+    BEGIN TRANSACTION;
+      CREATE TABLE IF NOT EXISTS 'bfts_idx_data'(id INTEGER PRIMARY KEY, block BLOB);
+      CREATE TABLE IF NOT EXISTS 'fts_idx_data'(id INTEGER PRIMARY KEY, block BLOB);
+      INSERT INTO fts_idx_data VALUES(1,X'');
+      INSERT INTO fts_idx_data VALUES(10,X'00000000ff000001000000');
+      CREATE TABLE IF NOT EXISTS 'fts_idx_idx'(segid, term, pgno, PRIMARY KEY(segid, term)) WITHOUT ROWID;
+      CREATE TABLE IF NOT EXISTS 'fts_idx_docsize'(id INTEGER PRIMARY KEY, sz BLOB, origin INTEGER);
+      CREATE TABLE IF NOT EXISTS 'fts_idx_config'(k PRIMARY KEY, v) WITHOUT ROWID;
+      INSERT INTO fts_idx_config VALUES('version',4);
+      PRAGMA writable_schema=ON;
+      INSERT INTO sqlite_schema(type,name,tbl_name,rootpage,sql)VALUES('table','fts_idx','fts_idx',0,'CREATE VIRTUAL TABLE fts_idx USING fts5(Title, Description, Channel, Tags, content='''', contentless_delete=1)');
+      
+      CREATE TABLE f(x BLOB, y);
+    COMMIT;
+    PRAGMA writable_schema = RESET;
+  }
+
+  do_candidates_test 7.4 {
+    SELECT * FROM fts_idx, f WHERE x = fts_idx.Channel
+  } {
+    CREATE INDEX f_idx_00000078 ON f(x);
+  }
+}
+
+finish_test
diff --git a/ext/expert/sqlite3expert.c b/ext/expert/sqlite3expert.c
new file mode 100644
index 0000000000000000000000000000000000000000..93693cfae99169b92cf924b4d9b8357a09044d61
--- /dev/null
+++ b/ext/expert/sqlite3expert.c
@@ -0,0 +1,2234 @@
+/*
+** 2017 April 09
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+*/
+#include "sqlite3expert.h"
+#include <assert.h>
+#include <string.h>
+#include <stdio.h>
+
+#if !defined(SQLITE_AMALGAMATION)
+#if defined(SQLITE_COVERAGE_TEST) || defined(SQLITE_MUTATION_TEST)
+# define SQLITE_OMIT_AUXILIARY_SAFETY_CHECKS 1
+#endif
+#if defined(SQLITE_OMIT_AUXILIARY_SAFETY_CHECKS)
+# define ALWAYS(X)      (1)
+# define NEVER(X)       (0)
+#elif !defined(NDEBUG)
+# define ALWAYS(X)      ((X)?1:(assert(0),0))
+# define NEVER(X)       ((X)?(assert(0),1):0)
+#else
+# define ALWAYS(X)      (X)
+# define NEVER(X)       (X)
+#endif
+#endif /* !defined(SQLITE_AMALGAMATION) */
+
+
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+
+typedef sqlite3_int64 i64;
+typedef sqlite3_uint64 u64;
+
+typedef struct IdxColumn IdxColumn;
+typedef struct IdxConstraint IdxConstraint;
+typedef struct IdxScan IdxScan;
+typedef struct IdxStatement IdxStatement;
+typedef struct IdxTable IdxTable;
+typedef struct IdxWrite IdxWrite;
+
+#define STRLEN  (int)strlen
+
+/*
+** A temp table name that we assume no user database will actually use.
+** If this assumption proves incorrect triggers on the table with the
+** conflicting name will be ignored.
+*/
+#define UNIQUE_TABLE_NAME "t592690916721053953805701627921227776"
+
+/*
+** A single constraint. Equivalent to either "col = ?" or "col < ?" (or
+** any other type of single-ended range constraint on a column).
+**
+** pLink:
+**   Used to temporarily link IdxConstraint objects into lists while
+**   creating candidate indexes.
+*/
+struct IdxConstraint {
+  char *zColl;                    /* Collation sequence */
+  int bRange;                     /* True for range, false for eq */
+  int iCol;                       /* Constrained table column */
+  int bFlag;                      /* Used by idxFindCompatible() */
+  int bDesc;                      /* True if ORDER BY <expr> DESC */
+  IdxConstraint *pNext;           /* Next constraint in pEq or pRange list */
+  IdxConstraint *pLink;           /* See above */
+};
+
+/*
+** A single scan of a single table.
+*/
+struct IdxScan {
+  IdxTable *pTab;                 /* Associated table object */
+  int iDb;                        /* Database containing table zTable */
+  i64 covering;                   /* Mask of columns required for cov. index */
+  IdxConstraint *pOrder;          /* ORDER BY columns */
+  IdxConstraint *pEq;             /* List of == constraints */
+  IdxConstraint *pRange;          /* List of < constraints */
+  IdxScan *pNextScan;             /* Next IdxScan object for same analysis */
+};
+
+/*
+** Information regarding a single database table. Extracted from 
+** "PRAGMA table_info" by function idxGetTableInfo().
+*/
+struct IdxColumn {
+  char *zName;
+  char *zColl;
+  int iPk;
+};
+struct IdxTable {
+  int nCol;
+  char *zName;                    /* Table name */
+  IdxColumn *aCol;
+  IdxTable *pNext;                /* Next table in linked list of all tables */
+};
+
+/*
+** An object of the following type is created for each unique table/write-op
+** seen. The objects are stored in a singly-linked list beginning at
+** sqlite3expert.pWrite.
+*/
+struct IdxWrite {
+  IdxTable *pTab;
+  int eOp;                        /* SQLITE_UPDATE, DELETE or INSERT */
+  IdxWrite *pNext;
+};
+
+/*
+** Each statement being analyzed is represented by an instance of this
+** structure.
+*/
+struct IdxStatement {
+  int iId;                        /* Statement number */
+  char *zSql;                     /* SQL statement */
+  char *zIdx;                     /* Indexes */
+  char *zEQP;                     /* Plan */
+  IdxStatement *pNext;
+};
+
+
+/*
+** A hash table for storing strings. With space for a payload string
+** with each entry. Methods are:
+**
+**   idxHashInit()
+**   idxHashClear()
+**   idxHashAdd()
+**   idxHashSearch()
+*/
+#define IDX_HASH_SIZE 1023
+typedef struct IdxHashEntry IdxHashEntry;
+typedef struct IdxHash IdxHash;
+struct IdxHashEntry {
+  char *zKey;                     /* nul-terminated key */
+  char *zVal;                     /* nul-terminated value string */
+  char *zVal2;                    /* nul-terminated value string 2 */
+  IdxHashEntry *pHashNext;        /* Next entry in same hash bucket */
+  IdxHashEntry *pNext;            /* Next entry in hash */
+};
+struct IdxHash {
+  IdxHashEntry *pFirst;
+  IdxHashEntry *aHash[IDX_HASH_SIZE];
+};
+
+/*
+** sqlite3expert object.
+*/
+struct sqlite3expert {
+  int iSample;                    /* Percentage of tables to sample for stat1 */
+  sqlite3 *db;                    /* User database */
+  sqlite3 *dbm;                   /* In-memory db for this analysis */
+  sqlite3 *dbv;                   /* Vtab schema for this analysis */
+  IdxTable *pTable;               /* List of all IdxTable objects */
+  IdxScan *pScan;                 /* List of scan objects */
+  IdxWrite *pWrite;               /* List of write objects */
+  IdxStatement *pStatement;       /* List of IdxStatement objects */
+  int bRun;                       /* True once analysis has run */
+  char **pzErrmsg;
+  int rc;                         /* Error code from whereinfo hook */
+  IdxHash hIdx;                   /* Hash containing all candidate indexes */
+  char *zCandidates;              /* For EXPERT_REPORT_CANDIDATES */
+};
+
+
+/*
+** Allocate and return nByte bytes of zeroed memory using sqlite3_malloc(). 
+** If the allocation fails, set *pRc to SQLITE_NOMEM and return NULL.
+*/
+static void *idxMalloc(int *pRc, int nByte){
+  void *pRet;
+  assert( *pRc==SQLITE_OK );
+  assert( nByte>0 );
+  pRet = sqlite3_malloc(nByte);
+  if( pRet ){
+    memset(pRet, 0, nByte);
+  }else{
+    *pRc = SQLITE_NOMEM;
+  }
+  return pRet;
+}
+
+/*
+** Initialize an IdxHash hash table.
+*/
+static void idxHashInit(IdxHash *pHash){
+  memset(pHash, 0, sizeof(IdxHash));
+}
+
+/*
+** Reset an IdxHash hash table.
+*/
+static void idxHashClear(IdxHash *pHash){
+  int i;
+  for(i=0; i<IDX_HASH_SIZE; i++){
+    IdxHashEntry *pEntry;
+    IdxHashEntry *pNext;
+    for(pEntry=pHash->aHash[i]; pEntry; pEntry=pNext){
+      pNext = pEntry->pHashNext;
+      sqlite3_free(pEntry->zVal2);
+      sqlite3_free(pEntry);
+    }
+  }
+  memset(pHash, 0, sizeof(IdxHash));
+}
+
+/*
+** Return the index of the hash bucket that the string specified by the
+** arguments to this function belongs.
+*/
+static int idxHashString(const char *z, int n){
+  unsigned int ret = 0;
+  int i;
+  for(i=0; i<n; i++){
+    ret += (ret<<3) + (unsigned char)(z[i]);
+  }
+  return (int)(ret % IDX_HASH_SIZE);
+}
+
+/*
+** If zKey is already present in the hash table, return non-zero and do
+** nothing. Otherwise, add an entry with key zKey and payload string zVal to
+** the hash table passed as the second argument. 
+*/
+static int idxHashAdd(
+  int *pRc, 
+  IdxHash *pHash, 
+  const char *zKey,
+  const char *zVal
+){
+  int nKey = STRLEN(zKey);
+  int iHash = idxHashString(zKey, nKey);
+  int nVal = (zVal ? STRLEN(zVal) : 0);
+  IdxHashEntry *pEntry;
+  assert( iHash>=0 );
+  for(pEntry=pHash->aHash[iHash]; pEntry; pEntry=pEntry->pHashNext){
+    if( STRLEN(pEntry->zKey)==nKey && 0==memcmp(pEntry->zKey, zKey, nKey) ){
+      return 1;
+    }
+  }
+  pEntry = idxMalloc(pRc, sizeof(IdxHashEntry) + nKey+1 + nVal+1);
+  if( pEntry ){
+    pEntry->zKey = (char*)&pEntry[1];
+    memcpy(pEntry->zKey, zKey, nKey);
+    if( zVal ){
+      pEntry->zVal = &pEntry->zKey[nKey+1];
+      memcpy(pEntry->zVal, zVal, nVal);
+    }
+    pEntry->pHashNext = pHash->aHash[iHash];
+    pHash->aHash[iHash] = pEntry;
+
+    pEntry->pNext = pHash->pFirst;
+    pHash->pFirst = pEntry;
+  }
+  return 0;
+}
+
+/*
+** If zKey/nKey is present in the hash table, return a pointer to the 
+** hash-entry object.
+*/
+static IdxHashEntry *idxHashFind(IdxHash *pHash, const char *zKey, int nKey){
+  int iHash;
+  IdxHashEntry *pEntry;
+  if( nKey<0 ) nKey = STRLEN(zKey);
+  iHash = idxHashString(zKey, nKey);
+  assert( iHash>=0 );
+  for(pEntry=pHash->aHash[iHash]; pEntry; pEntry=pEntry->pHashNext){
+    if( STRLEN(pEntry->zKey)==nKey && 0==memcmp(pEntry->zKey, zKey, nKey) ){
+      return pEntry;
+    }
+  }
+  return 0;
+}
+
+/*
+** If the hash table contains an entry with a key equal to the string
+** passed as the final two arguments to this function, return a pointer
+** to the payload string. Otherwise, if zKey/nKey is not present in the
+** hash table, return NULL.
+*/
+static const char *idxHashSearch(IdxHash *pHash, const char *zKey, int nKey){
+  IdxHashEntry *pEntry = idxHashFind(pHash, zKey, nKey);
+  if( pEntry ) return pEntry->zVal;
+  return 0;
+}
+
+/*
+** Allocate and return a new IdxConstraint object. Set the IdxConstraint.zColl
+** variable to point to a copy of nul-terminated string zColl.
+*/
+static IdxConstraint *idxNewConstraint(int *pRc, const char *zColl){
+  IdxConstraint *pNew;
+  int nColl = STRLEN(zColl);
+
+  assert( *pRc==SQLITE_OK );
+  pNew = (IdxConstraint*)idxMalloc(pRc, sizeof(IdxConstraint) * nColl + 1);
+  if( pNew ){
+    pNew->zColl = (char*)&pNew[1];
+    memcpy(pNew->zColl, zColl, nColl+1);
+  }
+  return pNew;
+}
+
+/*
+** An error associated with database handle db has just occurred. Pass
+** the error message to callback function xOut.
+*/
+static void idxDatabaseError(
+  sqlite3 *db,                    /* Database handle */
+  char **pzErrmsg                 /* Write error here */
+){
+  *pzErrmsg = sqlite3_mprintf("%s", sqlite3_errmsg(db));
+}
+
+/*
+** Prepare an SQL statement.
+*/
+static int idxPrepareStmt(
+  sqlite3 *db,                    /* Database handle to compile against */
+  sqlite3_stmt **ppStmt,          /* OUT: Compiled SQL statement */
+  char **pzErrmsg,                /* OUT: sqlite3_malloc()ed error message */
+  const char *zSql                /* SQL statement to compile */
+){
+  int rc = sqlite3_prepare_v2(db, zSql, -1, ppStmt, 0);
+  if( rc!=SQLITE_OK ){
+    *ppStmt = 0;
+    idxDatabaseError(db, pzErrmsg);
+  }
+  return rc;
+}
+
+/*
+** Prepare an SQL statement using the results of a printf() formatting.
+*/
+static int idxPrintfPrepareStmt(
+  sqlite3 *db,                    /* Database handle to compile against */
+  sqlite3_stmt **ppStmt,          /* OUT: Compiled SQL statement */
+  char **pzErrmsg,                /* OUT: sqlite3_malloc()ed error message */
+  const char *zFmt,               /* printf() format of SQL statement */
+  ...                             /* Trailing printf() arguments */
+){
+  va_list ap;
+  int rc;
+  char *zSql;
+  va_start(ap, zFmt);
+  zSql = sqlite3_vmprintf(zFmt, ap);
+  if( zSql==0 ){
+    rc = SQLITE_NOMEM;
+  }else{
+    rc = idxPrepareStmt(db, ppStmt, pzErrmsg, zSql);
+    sqlite3_free(zSql);
+  }
+  va_end(ap);
+  return rc;
+}
+
+
+/*************************************************************************
+** Beginning of virtual table implementation.
+*/
+typedef struct ExpertVtab ExpertVtab;
+struct ExpertVtab {
+  sqlite3_vtab base;
+  IdxTable *pTab;
+  sqlite3expert *pExpert;
+};
+
+typedef struct ExpertCsr ExpertCsr;
+struct ExpertCsr {
+  sqlite3_vtab_cursor base;
+  sqlite3_stmt *pData;
+};
+
+static char *expertDequote(const char *zIn){
+  int n = STRLEN(zIn);
+  char *zRet = sqlite3_malloc(n);
+
+  assert( zIn[0]=='\'' );
+  assert( zIn[n-1]=='\'' );
+
+  if( zRet ){
+    int iOut = 0;
+    int iIn = 0;
+    for(iIn=1; iIn<(n-1); iIn++){
+      if( zIn[iIn]=='\'' ){
+        assert( zIn[iIn+1]=='\'' );
+        iIn++;
+      }
+      zRet[iOut++] = zIn[iIn];
+    }
+    zRet[iOut] = '\0';
+  }
+
+  return zRet;
+}
+
+/* 
+** This function is the implementation of both the xConnect and xCreate
+** methods of the r-tree virtual table.
+**
+**   argv[0]   -> module name
+**   argv[1]   -> database name
+**   argv[2]   -> table name
+**   argv[...] -> column names...
+*/
+static int expertConnect(
+  sqlite3 *db,
+  void *pAux,
+  int argc, const char *const*argv,
+  sqlite3_vtab **ppVtab,
+  char **pzErr
+){
+  sqlite3expert *pExpert = (sqlite3expert*)pAux;
+  ExpertVtab *p = 0;
+  int rc;
+
+  if( argc!=4 ){
+    *pzErr = sqlite3_mprintf("internal error!");
+    rc = SQLITE_ERROR;
+  }else{
+    char *zCreateTable = expertDequote(argv[3]);
+    if( zCreateTable ){
+      rc = sqlite3_declare_vtab(db, zCreateTable);
+      if( rc==SQLITE_OK ){
+        p = idxMalloc(&rc, sizeof(ExpertVtab));
+      }
+      if( rc==SQLITE_OK ){
+        p->pExpert = pExpert;
+        p->pTab = pExpert->pTable;
+        assert( sqlite3_stricmp(p->pTab->zName, argv[2])==0 );
+      }
+      sqlite3_free(zCreateTable);
+    }else{
+      rc = SQLITE_NOMEM;
+    }
+  }
+
+  *ppVtab = (sqlite3_vtab*)p;
+  return rc;
+}
+
+static int expertDisconnect(sqlite3_vtab *pVtab){
+  ExpertVtab *p = (ExpertVtab*)pVtab;
+  sqlite3_free(p);
+  return SQLITE_OK;
+}
+
+static int expertBestIndex(sqlite3_vtab *pVtab, sqlite3_index_info *pIdxInfo){
+  ExpertVtab *p = (ExpertVtab*)pVtab;
+  int rc = SQLITE_OK;
+  int n = 0;
+  IdxScan *pScan;
+  const int opmask = 
+    SQLITE_INDEX_CONSTRAINT_EQ | SQLITE_INDEX_CONSTRAINT_GT |
+    SQLITE_INDEX_CONSTRAINT_LT | SQLITE_INDEX_CONSTRAINT_GE |
+    SQLITE_INDEX_CONSTRAINT_LE;
+
+  pScan = idxMalloc(&rc, sizeof(IdxScan));
+  if( pScan ){
+    int i;
+
+    /* Link the new scan object into the list */
+    pScan->pTab = p->pTab;
+    pScan->pNextScan = p->pExpert->pScan;
+    p->pExpert->pScan = pScan;
+
+    /* Add the constraints to the IdxScan object */
+    for(i=0; i<pIdxInfo->nConstraint; i++){
+      struct sqlite3_index_constraint *pCons = &pIdxInfo->aConstraint[i];
+      if( pCons->usable 
+       && pCons->iColumn>=0 
+       && p->pTab->aCol[pCons->iColumn].iPk==0
+       && (pCons->op & opmask) 
+      ){
+        IdxConstraint *pNew;
+        const char *zColl = sqlite3_vtab_collation(pIdxInfo, i);
+        pNew = idxNewConstraint(&rc, zColl);
+        if( pNew ){
+          pNew->iCol = pCons->iColumn;
+          if( pCons->op==SQLITE_INDEX_CONSTRAINT_EQ ){
+            pNew->pNext = pScan->pEq;
+            pScan->pEq = pNew;
+          }else{
+            pNew->bRange = 1;
+            pNew->pNext = pScan->pRange;
+            pScan->pRange = pNew;
+          }
+        }
+        n++;
+        pIdxInfo->aConstraintUsage[i].argvIndex = n;
+      }
+    }
+
+    /* Add the ORDER BY to the IdxScan object */
+    for(i=pIdxInfo->nOrderBy-1; i>=0; i--){
+      int iCol = pIdxInfo->aOrderBy[i].iColumn;
+      if( iCol>=0 ){
+        IdxConstraint *pNew = idxNewConstraint(&rc, p->pTab->aCol[iCol].zColl);
+        if( pNew ){
+          pNew->iCol = iCol;
+          pNew->bDesc = pIdxInfo->aOrderBy[i].desc;
+          pNew->pNext = pScan->pOrder;
+          pNew->pLink = pScan->pOrder;
+          pScan->pOrder = pNew;
+          n++;
+        }
+      }
+    }
+  }
+
+  pIdxInfo->estimatedCost = 1000000.0 / (n+1);
+  return rc;
+}
+
+static int expertUpdate(
+  sqlite3_vtab *pVtab, 
+  int nData, 
+  sqlite3_value **azData, 
+  sqlite_int64 *pRowid
+){
+  (void)pVtab;
+  (void)nData;
+  (void)azData;
+  (void)pRowid;
+  return SQLITE_OK;
+}
+
+/* 
+** Virtual table module xOpen method.
+*/
+static int expertOpen(sqlite3_vtab *pVTab, sqlite3_vtab_cursor **ppCursor){
+  int rc = SQLITE_OK;
+  ExpertCsr *pCsr;
+  (void)pVTab;
+  pCsr = idxMalloc(&rc, sizeof(ExpertCsr));
+  *ppCursor = (sqlite3_vtab_cursor*)pCsr;
+  return rc;
+}
+
+/* 
+** Virtual table module xClose method.
+*/
+static int expertClose(sqlite3_vtab_cursor *cur){
+  ExpertCsr *pCsr = (ExpertCsr*)cur;
+  sqlite3_finalize(pCsr->pData);
+  sqlite3_free(pCsr);
+  return SQLITE_OK;
+}
+
+/*
+** Virtual table module xEof method.
+**
+** Return non-zero if the cursor does not currently point to a valid 
+** record (i.e if the scan has finished), or zero otherwise.
+*/
+static int expertEof(sqlite3_vtab_cursor *cur){
+  ExpertCsr *pCsr = (ExpertCsr*)cur;
+  return pCsr->pData==0;
+}
+
+/* 
+** Virtual table module xNext method.
+*/
+static int expertNext(sqlite3_vtab_cursor *cur){
+  ExpertCsr *pCsr = (ExpertCsr*)cur;
+  int rc = SQLITE_OK;
+
+  assert( pCsr->pData );
+  rc = sqlite3_step(pCsr->pData);
+  if( rc!=SQLITE_ROW ){
+    rc = sqlite3_finalize(pCsr->pData);
+    pCsr->pData = 0;
+  }else{
+    rc = SQLITE_OK;
+  }
+
+  return rc;
+}
+
+/* 
+** Virtual table module xRowid method.
+*/
+static int expertRowid(sqlite3_vtab_cursor *cur, sqlite_int64 *pRowid){
+  (void)cur;
+  *pRowid = 0;
+  return SQLITE_OK;
+}
+
+/* 
+** Virtual table module xColumn method.
+*/
+static int expertColumn(sqlite3_vtab_cursor *cur, sqlite3_context *ctx, int i){
+  ExpertCsr *pCsr = (ExpertCsr*)cur;
+  sqlite3_value *pVal;
+  pVal = sqlite3_column_value(pCsr->pData, i);
+  if( pVal ){
+    sqlite3_result_value(ctx, pVal);
+  }
+  return SQLITE_OK;
+}
+
+/* 
+** Virtual table module xFilter method.
+*/
+static int expertFilter(
+  sqlite3_vtab_cursor *cur, 
+  int idxNum, const char *idxStr,
+  int argc, sqlite3_value **argv
+){
+  ExpertCsr *pCsr = (ExpertCsr*)cur;
+  ExpertVtab *pVtab = (ExpertVtab*)(cur->pVtab);
+  sqlite3expert *pExpert = pVtab->pExpert;
+  int rc;
+
+  (void)idxNum;
+  (void)idxStr;
+  (void)argc;
+  (void)argv;
+  rc = sqlite3_finalize(pCsr->pData);
+  pCsr->pData = 0;
+  if( rc==SQLITE_OK ){
+    rc = idxPrintfPrepareStmt(pExpert->db, &pCsr->pData, &pVtab->base.zErrMsg,
+        "SELECT * FROM main.%Q WHERE sqlite_expert_sample()", pVtab->pTab->zName
+    );
+  }
+
+  if( rc==SQLITE_OK ){
+    rc = expertNext(cur);
+  }
+  return rc;
+}
+
+static int idxRegisterVtab(sqlite3expert *p){
+  static sqlite3_module expertModule = {
+    2,                            /* iVersion */
+    expertConnect,                /* xCreate - create a table */
+    expertConnect,                /* xConnect - connect to an existing table */
+    expertBestIndex,              /* xBestIndex - Determine search strategy */
+    expertDisconnect,             /* xDisconnect - Disconnect from a table */
+    expertDisconnect,             /* xDestroy - Drop a table */
+    expertOpen,                   /* xOpen - open a cursor */
+    expertClose,                  /* xClose - close a cursor */
+    expertFilter,                 /* xFilter - configure scan constraints */
+    expertNext,                   /* xNext - advance a cursor */
+    expertEof,                    /* xEof */
+    expertColumn,                 /* xColumn - read data */
+    expertRowid,                  /* xRowid - read data */
+    expertUpdate,                 /* xUpdate - write data */
+    0,                            /* xBegin - begin transaction */
+    0,                            /* xSync - sync transaction */
+    0,                            /* xCommit - commit transaction */
+    0,                            /* xRollback - rollback transaction */
+    0,                            /* xFindFunction - function overloading */
+    0,                            /* xRename - rename the table */
+    0,                            /* xSavepoint */
+    0,                            /* xRelease */
+    0,                            /* xRollbackTo */
+    0,                            /* xShadowName */
+    0,                            /* xIntegrity */
+  };
+
+  return sqlite3_create_module(p->dbv, "expert", &expertModule, (void*)p);
+}
+/*
+** End of virtual table implementation.
+*************************************************************************/
+/*
+** Finalize SQL statement pStmt. If (*pRc) is SQLITE_OK when this function
+** is called, set it to the return value of sqlite3_finalize() before
+** returning. Otherwise, discard the sqlite3_finalize() return value.
+*/
+static void idxFinalize(int *pRc, sqlite3_stmt *pStmt){
+  int rc = sqlite3_finalize(pStmt);
+  if( *pRc==SQLITE_OK ) *pRc = rc;
+}
+
+/*
+** Attempt to allocate an IdxTable structure corresponding to table zTab
+** in the main database of connection db. If successful, set (*ppOut) to
+** point to the new object and return SQLITE_OK. Otherwise, return an
+** SQLite error code and set (*ppOut) to NULL. In this case *pzErrmsg may be
+** set to point to an error string.
+**
+** It is the responsibility of the caller to eventually free either the
+** IdxTable object or error message using sqlite3_free().
+*/
+static int idxGetTableInfo(
+  sqlite3 *db,                    /* Database connection to read details from */
+  const char *zTab,               /* Table name */
+  IdxTable **ppOut,               /* OUT: New object (if successful) */
+  char **pzErrmsg                 /* OUT: Error message (if not) */
+){
+  sqlite3_stmt *p1 = 0;
+  int nCol = 0;
+  int nTab;
+  int nByte;
+  IdxTable *pNew = 0;
+  int rc, rc2;
+  char *pCsr = 0;
+  int nPk = 0;
+
+  *ppOut = 0;
+  if( zTab==0 ) return SQLITE_ERROR;
+  nTab = STRLEN(zTab);
+  nByte = sizeof(IdxTable) + nTab + 1;
+  rc = idxPrintfPrepareStmt(db, &p1, pzErrmsg, "PRAGMA table_xinfo=%Q", zTab);
+  while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(p1) ){
+    const char *zCol = (const char*)sqlite3_column_text(p1, 1);
+    const char *zColSeq = 0;
+    if( zCol==0 ){
+      rc = SQLITE_ERROR;
+      break;
+    }
+    nByte += 1 + STRLEN(zCol);
+    rc = sqlite3_table_column_metadata(
+        db, "main", zTab, zCol, 0, &zColSeq, 0, 0, 0
+    );
+    if( zColSeq==0 ) zColSeq = "binary";
+    nByte += 1 + STRLEN(zColSeq);
+    nCol++;
+    nPk += (sqlite3_column_int(p1, 5)>0);
+  }
+  rc2 = sqlite3_reset(p1);
+  if( rc==SQLITE_OK ) rc = rc2;
+
+  nByte += sizeof(IdxColumn) * nCol;
+  if( rc==SQLITE_OK ){
+    pNew = idxMalloc(&rc, nByte);
+  }
+  if( rc==SQLITE_OK ){
+    pNew->aCol = (IdxColumn*)&pNew[1];
+    pNew->nCol = nCol;
+    pCsr = (char*)&pNew->aCol[nCol];
+  }
+
+  nCol = 0;
+  while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(p1) ){
+    const char *zCol = (const char*)sqlite3_column_text(p1, 1);
+    const char *zColSeq = 0;
+    int nCopy;
+    if( zCol==0 ) continue;
+    nCopy = STRLEN(zCol) + 1;
+    pNew->aCol[nCol].zName = pCsr;
+    pNew->aCol[nCol].iPk = (sqlite3_column_int(p1, 5)==1 && nPk==1);
+    memcpy(pCsr, zCol, nCopy);
+    pCsr += nCopy;
+
+    rc = sqlite3_table_column_metadata(
+        db, "main", zTab, zCol, 0, &zColSeq, 0, 0, 0
+    );
+    if( rc==SQLITE_OK ){
+      if( zColSeq==0 ) zColSeq = "binary";
+      nCopy = STRLEN(zColSeq) + 1;
+      pNew->aCol[nCol].zColl = pCsr;
+      memcpy(pCsr, zColSeq, nCopy);
+      pCsr += nCopy;
+    }
+
+    nCol++;
+  }
+  idxFinalize(&rc, p1);
+
+  if( rc!=SQLITE_OK ){
+    sqlite3_free(pNew);
+    pNew = 0;
+  }else if( ALWAYS(pNew!=0) ){
+    pNew->zName = pCsr;
+    if( ALWAYS(pNew->zName!=0) ) memcpy(pNew->zName, zTab, nTab+1);
+  }
+
+  *ppOut = pNew;
+  return rc;
+}
+
+/*
+** This function is a no-op if *pRc is set to anything other than 
+** SQLITE_OK when it is called.
+**
+** If *pRc is initially set to SQLITE_OK, then the text specified by
+** the printf() style arguments is appended to zIn and the result returned
+** in a buffer allocated by sqlite3_malloc(). sqlite3_free() is called on
+** zIn before returning.
+*/
+static char *idxAppendText(int *pRc, char *zIn, const char *zFmt, ...){
+  va_list ap;
+  char *zAppend = 0;
+  char *zRet = 0;
+  int nIn = zIn ? STRLEN(zIn) : 0;
+  int nAppend = 0;
+  va_start(ap, zFmt);
+  if( *pRc==SQLITE_OK ){
+    zAppend = sqlite3_vmprintf(zFmt, ap);
+    if( zAppend ){
+      nAppend = STRLEN(zAppend);
+      zRet = (char*)sqlite3_malloc(nIn + nAppend + 1);
+    }
+    if( zAppend && zRet ){
+      if( nIn ) memcpy(zRet, zIn, nIn);
+      memcpy(&zRet[nIn], zAppend, nAppend+1);
+    }else{
+      sqlite3_free(zRet);
+      zRet = 0;
+      *pRc = SQLITE_NOMEM;
+    }
+    sqlite3_free(zAppend);
+    sqlite3_free(zIn);
+  }
+  va_end(ap);
+  return zRet;
+}
+
+/*
+** Return true if zId must be quoted in order to use it as an SQL
+** identifier, or false otherwise.
+*/
+static int idxIdentifierRequiresQuotes(const char *zId){
+  int i;
+  int nId = STRLEN(zId);
+  
+  if( sqlite3_keyword_check(zId, nId) ) return 1;
+
+  for(i=0; zId[i]; i++){
+    if( !(zId[i]=='_')
+     && !(zId[i]>='0' && zId[i]<='9')
+     && !(zId[i]>='a' && zId[i]<='z')
+     && !(zId[i]>='A' && zId[i]<='Z')
+    ){
+      return 1;
+    }
+  }
+  return 0;
+}
+
+/*
+** This function appends an index column definition suitable for constraint
+** pCons to the string passed as zIn and returns the result.
+*/
+static char *idxAppendColDefn(
+  int *pRc,                       /* IN/OUT: Error code */
+  char *zIn,                      /* Column defn accumulated so far */
+  IdxTable *pTab,                 /* Table index will be created on */
+  IdxConstraint *pCons
+){
+  char *zRet = zIn;
+  IdxColumn *p = &pTab->aCol[pCons->iCol];
+  if( zRet ) zRet = idxAppendText(pRc, zRet, ", ");
+
+  if( idxIdentifierRequiresQuotes(p->zName) ){
+    zRet = idxAppendText(pRc, zRet, "%Q", p->zName);
+  }else{
+    zRet = idxAppendText(pRc, zRet, "%s", p->zName);
+  }
+
+  if( sqlite3_stricmp(p->zColl, pCons->zColl) ){
+    if( idxIdentifierRequiresQuotes(pCons->zColl) ){
+      zRet = idxAppendText(pRc, zRet, " COLLATE %Q", pCons->zColl);
+    }else{
+      zRet = idxAppendText(pRc, zRet, " COLLATE %s", pCons->zColl);
+    }
+  }
+
+  if( pCons->bDesc ){
+    zRet = idxAppendText(pRc, zRet, " DESC");
+  }
+  return zRet;
+}
+
+/*
+** Search database dbm for an index compatible with the one idxCreateFromCons()
+** would create from arguments pScan, pEq and pTail. If no error occurs and 
+** such an index is found, return non-zero. Or, if no such index is found,
+** return zero.
+**
+** If an error occurs, set *pRc to an SQLite error code and return zero.
+*/
+static int idxFindCompatible(
+  int *pRc,                       /* OUT: Error code */
+  sqlite3* dbm,                   /* Database to search */
+  IdxScan *pScan,                 /* Scan for table to search for index on */
+  IdxConstraint *pEq,             /* List of == constraints */
+  IdxConstraint *pTail            /* List of range constraints */
+){
+  const char *zTbl = pScan->pTab->zName;
+  sqlite3_stmt *pIdxList = 0;
+  IdxConstraint *pIter;
+  int nEq = 0;                    /* Number of elements in pEq */
+  int rc;
+
+  /* Count the elements in list pEq */
+  for(pIter=pEq; pIter; pIter=pIter->pLink) nEq++;
+
+  rc = idxPrintfPrepareStmt(dbm, &pIdxList, 0, "PRAGMA index_list=%Q", zTbl);
+  while( rc==SQLITE_OK && sqlite3_step(pIdxList)==SQLITE_ROW ){
+    int bMatch = 1;
+    IdxConstraint *pT = pTail;
+    sqlite3_stmt *pInfo = 0;
+    const char *zIdx = (const char*)sqlite3_column_text(pIdxList, 1);
+    if( zIdx==0 ) continue;
+
+    /* Zero the IdxConstraint.bFlag values in the pEq list */
+    for(pIter=pEq; pIter; pIter=pIter->pLink) pIter->bFlag = 0;
+
+    rc = idxPrintfPrepareStmt(dbm, &pInfo, 0, "PRAGMA index_xInfo=%Q", zIdx);
+    while( rc==SQLITE_OK && sqlite3_step(pInfo)==SQLITE_ROW ){
+      int iIdx = sqlite3_column_int(pInfo, 0);
+      int iCol = sqlite3_column_int(pInfo, 1);
+      const char *zColl = (const char*)sqlite3_column_text(pInfo, 4);
+
+      if( iIdx<nEq ){
+        for(pIter=pEq; pIter; pIter=pIter->pLink){
+          if( pIter->bFlag ) continue;
+          if( pIter->iCol!=iCol ) continue;
+          if( sqlite3_stricmp(pIter->zColl, zColl) ) continue;
+          pIter->bFlag = 1;
+          break;
+        }
+        if( pIter==0 ){
+          bMatch = 0;
+          break;
+        }
+      }else{
+        if( pT ){
+          if( pT->iCol!=iCol || sqlite3_stricmp(pT->zColl, zColl) ){
+            bMatch = 0;
+            break;
+          }
+          pT = pT->pLink;
+        }
+      }
+    }
+    idxFinalize(&rc, pInfo);
+
+    if( rc==SQLITE_OK && bMatch ){
+      sqlite3_finalize(pIdxList);
+      return 1;
+    }
+  }
+  idxFinalize(&rc, pIdxList);
+
+  *pRc = rc;
+  return 0;
+}
+
+/* Callback for sqlite3_exec() with query with leading count(*) column.
+ * The first argument is expected to be an int*, referent to be incremented
+ * if that leading column is not exactly '0'.
+ */
+static int countNonzeros(void* pCount, int nc,
+                         char* azResults[], char* azColumns[]){
+  (void)azColumns;  /* Suppress unused parameter warning */
+  if( nc>0 && (azResults[0][0]!='0' || azResults[0][1]!=0) ){
+    *((int *)pCount) += 1;
+  }
+  return 0;
+}
+
+static int idxCreateFromCons(
+  sqlite3expert *p,
+  IdxScan *pScan,
+  IdxConstraint *pEq, 
+  IdxConstraint *pTail
+){
+  sqlite3 *dbm = p->dbm;
+  int rc = SQLITE_OK;
+  if( (pEq || pTail) && 0==idxFindCompatible(&rc, dbm, pScan, pEq, pTail) ){
+    IdxTable *pTab = pScan->pTab;
+    char *zCols = 0;
+    char *zIdx = 0;
+    IdxConstraint *pCons;
+    unsigned int h = 0;
+    const char *zFmt;
+
+    for(pCons=pEq; pCons; pCons=pCons->pLink){
+      zCols = idxAppendColDefn(&rc, zCols, pTab, pCons);
+    }
+    for(pCons=pTail; pCons; pCons=pCons->pLink){
+      zCols = idxAppendColDefn(&rc, zCols, pTab, pCons);
+    }
+
+    if( rc==SQLITE_OK ){
+      /* Hash the list of columns to come up with a name for the index */
+      const char *zTable = pScan->pTab->zName;
+      int quoteTable = idxIdentifierRequiresQuotes(zTable);
+      char *zName = 0;          /* Index name */
+      int collisions = 0;
+      do{
+        int i;
+        char *zFind;
+        for(i=0; zCols[i]; i++){
+          h += ((h<<3) + zCols[i]);
+        }
+        sqlite3_free(zName);
+        zName = sqlite3_mprintf("%s_idx_%08x", zTable, h);
+        if( zName==0 ) break;
+        /* Is is unique among table, view and index names? */
+        zFmt = "SELECT count(*) FROM sqlite_schema WHERE name=%Q"
+          " AND type in ('index','table','view')";
+        zFind = sqlite3_mprintf(zFmt, zName);
+        i = 0;
+        rc = sqlite3_exec(dbm, zFind, countNonzeros, &i, 0);
+        assert(rc==SQLITE_OK);
+        sqlite3_free(zFind);
+        if( i==0 ){
+          collisions = 0;
+          break;
+        }
+        ++collisions;
+      }while( collisions<50 && zName!=0 );
+      if( collisions ){
+        /* This return means "Gave up trying to find a unique index name." */
+        rc = SQLITE_BUSY_TIMEOUT;
+      }else if( zName==0 ){
+        rc = SQLITE_NOMEM;
+      }else{
+        if( quoteTable ){
+          zFmt = "CREATE INDEX \"%w\" ON \"%w\"(%s)";
+        }else{
+          zFmt = "CREATE INDEX %s ON %s(%s)";
+        }
+        zIdx = sqlite3_mprintf(zFmt, zName, zTable, zCols);
+        if( !zIdx ){
+          rc = SQLITE_NOMEM;
+        }else{
+          rc = sqlite3_exec(dbm, zIdx, 0, 0, p->pzErrmsg);
+          if( rc!=SQLITE_OK ){
+            rc = SQLITE_BUSY_TIMEOUT;
+          }else{
+            idxHashAdd(&rc, &p->hIdx, zName, zIdx);
+          }
+        }
+        sqlite3_free(zName);
+        sqlite3_free(zIdx);
+      }
+    }
+
+    sqlite3_free(zCols);
+  }
+  return rc;
+}
+
+/*
+** Return true if list pList (linked by IdxConstraint.pLink) contains
+** a constraint compatible with *p. Otherwise return false.
+*/
+static int idxFindConstraint(IdxConstraint *pList, IdxConstraint *p){
+  IdxConstraint *pCmp;
+  for(pCmp=pList; pCmp; pCmp=pCmp->pLink){
+    if( p->iCol==pCmp->iCol ) return 1;
+  }
+  return 0;
+}
+
+static int idxCreateFromWhere(
+  sqlite3expert *p, 
+  IdxScan *pScan,                 /* Create indexes for this scan */
+  IdxConstraint *pTail            /* range/ORDER BY constraints for inclusion */
+){
+  IdxConstraint *p1 = 0;
+  IdxConstraint *pCon;
+  int rc;
+
+  /* Gather up all the == constraints. */
+  for(pCon=pScan->pEq; pCon; pCon=pCon->pNext){
+    if( !idxFindConstraint(p1, pCon) && !idxFindConstraint(pTail, pCon) ){
+      pCon->pLink = p1;
+      p1 = pCon;
+    }
+  }
+
+  /* Create an index using the == constraints collected above. And the
+  ** range constraint/ORDER BY terms passed in by the caller, if any. */
+  rc = idxCreateFromCons(p, pScan, p1, pTail);
+
+  /* If no range/ORDER BY passed by the caller, create a version of the
+  ** index for each range constraint.  */
+  if( pTail==0 ){
+    for(pCon=pScan->pRange; rc==SQLITE_OK && pCon; pCon=pCon->pNext){
+      assert( pCon->pLink==0 );
+      if( !idxFindConstraint(p1, pCon) && !idxFindConstraint(pTail, pCon) ){
+        rc = idxCreateFromCons(p, pScan, p1, pCon);
+      }
+    }
+  }
+
+  return rc;
+}
+
+/*
+** Create candidate indexes in database [dbm] based on the data in 
+** linked-list pScan.
+*/
+static int idxCreateCandidates(sqlite3expert *p){
+  int rc = SQLITE_OK;
+  IdxScan *pIter;
+
+  for(pIter=p->pScan; pIter && rc==SQLITE_OK; pIter=pIter->pNextScan){
+    rc = idxCreateFromWhere(p, pIter, 0);
+    if( rc==SQLITE_OK && pIter->pOrder ){
+      rc = idxCreateFromWhere(p, pIter, pIter->pOrder);
+    }
+  }
+
+  return rc;
+}
+
+/*
+** Free all elements of the linked list starting at pConstraint.
+*/
+static void idxConstraintFree(IdxConstraint *pConstraint){
+  IdxConstraint *pNext;
+  IdxConstraint *p;
+
+  for(p=pConstraint; p; p=pNext){
+    pNext = p->pNext;
+    sqlite3_free(p);
+  }
+}
+
+/*
+** Free all elements of the linked list starting from pScan up until pLast
+** (pLast is not freed).
+*/
+static void idxScanFree(IdxScan *pScan, IdxScan *pLast){
+  IdxScan *p;
+  IdxScan *pNext;
+  for(p=pScan; p!=pLast; p=pNext){
+    pNext = p->pNextScan;
+    idxConstraintFree(p->pOrder);
+    idxConstraintFree(p->pEq);
+    idxConstraintFree(p->pRange);
+    sqlite3_free(p);
+  }
+}
+
+/*
+** Free all elements of the linked list starting from pStatement up 
+** until pLast (pLast is not freed).
+*/
+static void idxStatementFree(IdxStatement *pStatement, IdxStatement *pLast){
+  IdxStatement *p;
+  IdxStatement *pNext;
+  for(p=pStatement; p!=pLast; p=pNext){
+    pNext = p->pNext;
+    sqlite3_free(p->zEQP);
+    sqlite3_free(p->zIdx);
+    sqlite3_free(p);
+  }
+}
+
+/*
+** Free the linked list of IdxTable objects starting at pTab.
+*/
+static void idxTableFree(IdxTable *pTab){
+  IdxTable *pIter;
+  IdxTable *pNext;
+  for(pIter=pTab; pIter; pIter=pNext){
+    pNext = pIter->pNext;
+    sqlite3_free(pIter);
+  }
+}
+
+/*
+** Free the linked list of IdxWrite objects starting at pTab.
+*/
+static void idxWriteFree(IdxWrite *pTab){
+  IdxWrite *pIter;
+  IdxWrite *pNext;
+  for(pIter=pTab; pIter; pIter=pNext){
+    pNext = pIter->pNext;
+    sqlite3_free(pIter);
+  }
+}
+
+
+
+/*
+** This function is called after candidate indexes have been created. It
+** runs all the queries to see which indexes they prefer, and populates
+** IdxStatement.zIdx and IdxStatement.zEQP with the results.
+*/
+static int idxFindIndexes(
+  sqlite3expert *p,
+  char **pzErr                         /* OUT: Error message (sqlite3_malloc) */
+){
+  IdxStatement *pStmt;
+  sqlite3 *dbm = p->dbm;
+  int rc = SQLITE_OK;
+
+  IdxHash hIdx;
+  idxHashInit(&hIdx);
+
+  for(pStmt=p->pStatement; rc==SQLITE_OK && pStmt; pStmt=pStmt->pNext){
+    IdxHashEntry *pEntry;
+    sqlite3_stmt *pExplain = 0;
+    idxHashClear(&hIdx);
+    rc = idxPrintfPrepareStmt(dbm, &pExplain, pzErr,
+        "EXPLAIN QUERY PLAN %s", pStmt->zSql
+    );
+    while( rc==SQLITE_OK && sqlite3_step(pExplain)==SQLITE_ROW ){
+      /* int iId = sqlite3_column_int(pExplain, 0); */
+      /* int iParent = sqlite3_column_int(pExplain, 1); */
+      /* int iNotUsed = sqlite3_column_int(pExplain, 2); */
+      const char *zDetail = (const char*)sqlite3_column_text(pExplain, 3);
+      int nDetail;
+      int i;
+
+      if( !zDetail ) continue;
+      nDetail = STRLEN(zDetail);
+
+      for(i=0; i<nDetail; i++){
+        const char *zIdx = 0;
+        if( i+13<nDetail && memcmp(&zDetail[i], " USING INDEX ", 13)==0 ){
+          zIdx = &zDetail[i+13];
+        }else if( i+22<nDetail 
+            && memcmp(&zDetail[i], " USING COVERING INDEX ", 22)==0 
+        ){
+          zIdx = &zDetail[i+22];
+        }
+        if( zIdx ){
+          const char *zSql;
+          int nIdx = 0;
+          while( zIdx[nIdx]!='\0' && (zIdx[nIdx]!=' ' || zIdx[nIdx+1]!='(') ){
+            nIdx++;
+          }
+          zSql = idxHashSearch(&p->hIdx, zIdx, nIdx);
+          if( zSql ){
+            idxHashAdd(&rc, &hIdx, zSql, 0);
+            if( rc ) goto find_indexes_out;
+          }
+          break;
+        }
+      }
+
+      if( zDetail[0]!='-' ){
+        pStmt->zEQP = idxAppendText(&rc, pStmt->zEQP, "%s\n", zDetail);
+      }
+    }
+
+    for(pEntry=hIdx.pFirst; pEntry; pEntry=pEntry->pNext){
+      pStmt->zIdx = idxAppendText(&rc, pStmt->zIdx, "%s;\n", pEntry->zKey);
+    }
+
+    idxFinalize(&rc, pExplain);
+  }
+
+ find_indexes_out:
+  idxHashClear(&hIdx);
+  return rc;
+}
+
+static int idxAuthCallback(
+  void *pCtx,
+  int eOp,
+  const char *z3,
+  const char *z4,
+  const char *zDb,
+  const char *zTrigger
+){
+  int rc = SQLITE_OK;
+  (void)z4;
+  (void)zTrigger;
+  if( eOp==SQLITE_INSERT || eOp==SQLITE_UPDATE || eOp==SQLITE_DELETE ){
+    if( sqlite3_stricmp(zDb, "main")==0 ){
+      sqlite3expert *p = (sqlite3expert*)pCtx;
+      IdxTable *pTab;
+      for(pTab=p->pTable; pTab; pTab=pTab->pNext){
+        if( 0==sqlite3_stricmp(z3, pTab->zName) ) break;
+      }
+      if( pTab ){
+        IdxWrite *pWrite;
+        for(pWrite=p->pWrite; pWrite; pWrite=pWrite->pNext){
+          if( pWrite->pTab==pTab && pWrite->eOp==eOp ) break;
+        }
+        if( pWrite==0 ){
+          pWrite = idxMalloc(&rc, sizeof(IdxWrite));
+          if( rc==SQLITE_OK ){
+            pWrite->pTab = pTab;
+            pWrite->eOp = eOp;
+            pWrite->pNext = p->pWrite;
+            p->pWrite = pWrite;
+          }
+        }
+      }
+    }
+  }
+  return rc;
+}
+
+static int idxProcessOneTrigger(
+  sqlite3expert *p, 
+  IdxWrite *pWrite, 
+  char **pzErr
+){
+  static const char *zInt = UNIQUE_TABLE_NAME;
+  static const char *zDrop = "DROP TABLE " UNIQUE_TABLE_NAME;
+  IdxTable *pTab = pWrite->pTab;
+  const char *zTab = pTab->zName;
+  const char *zSql = 
+    "SELECT 'CREATE TEMP' || substr(sql, 7) FROM sqlite_schema "
+    "WHERE tbl_name = %Q AND type IN ('table', 'trigger') "
+    "ORDER BY type;";
+  sqlite3_stmt *pSelect = 0;
+  int rc = SQLITE_OK;
+  char *zWrite = 0;
+
+  /* Create the table and its triggers in the temp schema */
+  rc = idxPrintfPrepareStmt(p->db, &pSelect, pzErr, zSql, zTab, zTab);
+  while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pSelect) ){
+    const char *zCreate = (const char*)sqlite3_column_text(pSelect, 0);
+    if( zCreate==0 ) continue;
+    rc = sqlite3_exec(p->dbv, zCreate, 0, 0, pzErr);
+  }
+  idxFinalize(&rc, pSelect);
+
+  /* Rename the table in the temp schema to zInt */
+  if( rc==SQLITE_OK ){
+    char *z = sqlite3_mprintf("ALTER TABLE temp.%Q RENAME TO %Q", zTab, zInt);
+    if( z==0 ){
+      rc = SQLITE_NOMEM;
+    }else{
+      rc = sqlite3_exec(p->dbv, z, 0, 0, pzErr);
+      sqlite3_free(z);
+    }
+  }
+
+  switch( pWrite->eOp ){
+    case SQLITE_INSERT: {
+      int i;
+      zWrite = idxAppendText(&rc, zWrite, "INSERT INTO %Q VALUES(", zInt);
+      for(i=0; i<pTab->nCol; i++){
+        zWrite = idxAppendText(&rc, zWrite, "%s?", i==0 ? "" : ", ");
+      }
+      zWrite = idxAppendText(&rc, zWrite, ")");
+      break;
+    }
+    case SQLITE_UPDATE: {
+      int i;
+      zWrite = idxAppendText(&rc, zWrite, "UPDATE %Q SET ", zInt);
+      for(i=0; i<pTab->nCol; i++){
+        zWrite = idxAppendText(&rc, zWrite, "%s%Q=?", i==0 ? "" : ", ", 
+            pTab->aCol[i].zName
+        );
+      }
+      break;
+    }
+    default: {
+      assert( pWrite->eOp==SQLITE_DELETE );
+      if( rc==SQLITE_OK ){
+        zWrite = sqlite3_mprintf("DELETE FROM %Q", zInt);
+        if( zWrite==0 ) rc = SQLITE_NOMEM;
+      }
+    }
+  }
+
+  if( rc==SQLITE_OK ){
+    sqlite3_stmt *pX = 0;
+    rc = sqlite3_prepare_v2(p->dbv, zWrite, -1, &pX, 0);
+    idxFinalize(&rc, pX);
+    if( rc!=SQLITE_OK ){
+      idxDatabaseError(p->dbv, pzErr);
+    }
+  }
+  sqlite3_free(zWrite);
+
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_exec(p->dbv, zDrop, 0, 0, pzErr);
+  }
+
+  return rc;
+}
+
+static int idxProcessTriggers(sqlite3expert *p, char **pzErr){
+  int rc = SQLITE_OK;
+  IdxWrite *pEnd = 0;
+  IdxWrite *pFirst = p->pWrite;
+
+  while( rc==SQLITE_OK && pFirst!=pEnd ){
+    IdxWrite *pIter;
+    for(pIter=pFirst; rc==SQLITE_OK && pIter!=pEnd; pIter=pIter->pNext){
+      rc = idxProcessOneTrigger(p, pIter, pzErr);
+    }
+    pEnd = pFirst;
+    pFirst = p->pWrite;
+  }
+
+  return rc;
+}
+
+/*
+** This function tests if the schema of the main database of database handle
+** db contains an object named zTab. Assuming no error occurs, output parameter
+** (*pbContains) is set to true if zTab exists, or false if it does not.
+**
+** Or, if an error occurs, an SQLite error code is returned. The final value
+** of (*pbContains) is undefined in this case.
+*/
+static int expertDbContainsObject(
+  sqlite3 *db, 
+  const char *zTab, 
+  int *pbContains                 /* OUT: True if object exists */
+){
+  const char *zSql = "SELECT 1 FROM sqlite_schema WHERE name = ?";
+  sqlite3_stmt *pSql = 0;
+  int rc = SQLITE_OK;
+  int ret = 0;
+
+  rc = sqlite3_prepare_v2(db, zSql, -1, &pSql, 0);
+  if( rc==SQLITE_OK ){
+    sqlite3_bind_text(pSql, 1, zTab, -1, SQLITE_STATIC);
+    if( SQLITE_ROW==sqlite3_step(pSql) ){
+      ret = 1;
+    }
+    rc = sqlite3_finalize(pSql);
+  }
+
+  *pbContains = ret;
+  return rc;
+}
+
+/*
+** Execute SQL command zSql using database handle db. If no error occurs,
+** set (*pzErr) to NULL and return SQLITE_OK. 
+**
+** If an error does occur, return an SQLite error code and set (*pzErr) to
+** point to a buffer containing an English language error message. Except,
+** if the error message begins with "no such module:", then ignore the
+** error and return as if the SQL statement had succeeded.
+**
+** This is used to copy as much of the database schema as possible while 
+** ignoring any errors related to missing virtual table modules.
+*/
+static int expertSchemaSql(sqlite3 *db, const char *zSql, char **pzErr){
+  int rc = SQLITE_OK;
+  char *zErr = 0;
+
+  rc = sqlite3_exec(db, zSql, 0, 0, &zErr);
+  if( rc!=SQLITE_OK && zErr ){
+    int nErr = STRLEN(zErr);
+    if( nErr>=15 && memcmp(zErr, "no such module:", 15)==0 ){
+      sqlite3_free(zErr);
+      rc = SQLITE_OK;
+      zErr = 0;
+    }
+  }
+
+  *pzErr = zErr;
+  return rc;
+}
+
+static int idxCreateVtabSchema(sqlite3expert *p, char **pzErrmsg){
+  int rc = idxRegisterVtab(p);
+  sqlite3_stmt *pSchema = 0;
+
+  /* For each table in the main db schema:
+  **
+  **   1) Add an entry to the p->pTable list, and
+  **   2) Create the equivalent virtual table in dbv.
+  */
+  rc = idxPrepareStmt(p->db, &pSchema, pzErrmsg,
+      "SELECT type, name, sql, 1, "
+      "       substr(sql,1,14)=='create virtual' COLLATE nocase "
+      "FROM sqlite_schema "
+      "WHERE type IN ('table','view') AND "
+      "      substr(name,1,7)!='sqlite_' COLLATE nocase "
+      " UNION ALL "
+      "SELECT type, name, sql, 2, 0 FROM sqlite_schema "
+      "WHERE type = 'trigger'"
+      "  AND tbl_name IN(SELECT name FROM sqlite_schema WHERE type = 'view') "
+      "ORDER BY 4, 5 DESC, 1"
+  );
+  while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pSchema) ){
+    const char *zType = (const char*)sqlite3_column_text(pSchema, 0);
+    const char *zName = (const char*)sqlite3_column_text(pSchema, 1);
+    const char *zSql = (const char*)sqlite3_column_text(pSchema, 2);
+    int bVirtual = sqlite3_column_int(pSchema, 4);
+    int bExists = 0;
+
+    if( zType==0 || zName==0 ) continue;
+    rc = expertDbContainsObject(p->dbv, zName, &bExists);
+    if( rc || bExists ) continue;
+
+    if( zType[0]=='v' || zType[1]=='r' || bVirtual ){
+      /* A view. Or a trigger on a view. */
+      if( zSql ) rc = expertSchemaSql(p->dbv, zSql, pzErrmsg);
+    }else{
+      IdxTable *pTab;
+      rc = idxGetTableInfo(p->db, zName, &pTab, pzErrmsg);
+      if( rc==SQLITE_OK && ALWAYS(pTab!=0) ){
+        int i;
+        char *zInner = 0;
+        char *zOuter = 0;
+        pTab->pNext = p->pTable;
+        p->pTable = pTab;
+
+        /* The statement the vtab will pass to sqlite3_declare_vtab() */
+        zInner = idxAppendText(&rc, 0, "CREATE TABLE x(");
+        for(i=0; i<pTab->nCol; i++){
+          zInner = idxAppendText(&rc, zInner, "%s%Q COLLATE %s", 
+              (i==0 ? "" : ", "), pTab->aCol[i].zName, pTab->aCol[i].zColl
+          );
+        }
+        zInner = idxAppendText(&rc, zInner, ")");
+
+        /* The CVT statement to create the vtab */
+        zOuter = idxAppendText(&rc, 0, 
+            "CREATE VIRTUAL TABLE %Q USING expert(%Q)", zName, zInner
+        );
+        if( rc==SQLITE_OK ){
+          rc = sqlite3_exec(p->dbv, zOuter, 0, 0, pzErrmsg);
+        }
+        sqlite3_free(zInner);
+        sqlite3_free(zOuter);
+      }
+    }
+  }
+  idxFinalize(&rc, pSchema);
+  return rc;
+}
+
+struct IdxSampleCtx {
+  int iTarget;
+  double target;                  /* Target nRet/nRow value */
+  double nRow;                    /* Number of rows seen */
+  double nRet;                    /* Number of rows returned */
+};
+
+static void idxSampleFunc(
+  sqlite3_context *pCtx,
+  int argc,
+  sqlite3_value **argv
+){
+  struct IdxSampleCtx *p = (struct IdxSampleCtx*)sqlite3_user_data(pCtx);
+  int bRet;
+
+  (void)argv;
+  assert( argc==0 );
+  if( p->nRow==0.0 ){
+    bRet = 1;
+  }else{
+    bRet = (p->nRet / p->nRow) <= p->target;
+    if( bRet==0 ){
+      unsigned short rnd;
+      sqlite3_randomness(2, (void*)&rnd);
+      bRet = ((int)rnd % 100) <= p->iTarget;
+    }
+  }
+
+  sqlite3_result_int(pCtx, bRet);
+  p->nRow += 1.0;
+  p->nRet += (double)bRet;
+}
+
+struct IdxRemCtx {
+  int nSlot;
+  struct IdxRemSlot {
+    int eType;                    /* SQLITE_NULL, INTEGER, REAL, TEXT, BLOB */
+    i64 iVal;                     /* SQLITE_INTEGER value */
+    double rVal;                  /* SQLITE_FLOAT value */
+    int nByte;                    /* Bytes of space allocated at z */
+    int n;                        /* Size of buffer z */
+    char *z;                      /* SQLITE_TEXT/BLOB value */
+  } aSlot[1];
+};
+
+/*
+** Implementation of scalar function sqlite_expert_rem().
+*/
+static void idxRemFunc(
+  sqlite3_context *pCtx,
+  int argc,
+  sqlite3_value **argv
+){
+  struct IdxRemCtx *p = (struct IdxRemCtx*)sqlite3_user_data(pCtx);
+  struct IdxRemSlot *pSlot;
+  int iSlot;
+  assert( argc==2 );
+
+  iSlot = sqlite3_value_int(argv[0]);
+  assert( iSlot<p->nSlot );
+  pSlot = &p->aSlot[iSlot];
+
+  switch( pSlot->eType ){
+    case SQLITE_NULL:
+      /* no-op */
+      break;
+
+    case SQLITE_INTEGER:
+      sqlite3_result_int64(pCtx, pSlot->iVal);
+      break;
+
+    case SQLITE_FLOAT:
+      sqlite3_result_double(pCtx, pSlot->rVal);
+      break;
+
+    case SQLITE_BLOB:
+      sqlite3_result_blob(pCtx, pSlot->z, pSlot->n, SQLITE_TRANSIENT);
+      break;
+
+    case SQLITE_TEXT:
+      sqlite3_result_text(pCtx, pSlot->z, pSlot->n, SQLITE_TRANSIENT);
+      break;
+  }
+
+  pSlot->eType = sqlite3_value_type(argv[1]);
+  switch( pSlot->eType ){
+    case SQLITE_NULL:
+      /* no-op */
+      break;
+
+    case SQLITE_INTEGER:
+      pSlot->iVal = sqlite3_value_int64(argv[1]);
+      break;
+
+    case SQLITE_FLOAT:
+      pSlot->rVal = sqlite3_value_double(argv[1]);
+      break;
+
+    case SQLITE_BLOB:
+    case SQLITE_TEXT: {
+      int nByte = sqlite3_value_bytes(argv[1]);
+      const void *pData = 0;
+      if( nByte>pSlot->nByte ){
+        char *zNew = (char*)sqlite3_realloc(pSlot->z, nByte*2);
+        if( zNew==0 ){
+          sqlite3_result_error_nomem(pCtx);
+          return;
+        }
+        pSlot->nByte = nByte*2;
+        pSlot->z = zNew;
+      }
+      pSlot->n = nByte;
+      if( pSlot->eType==SQLITE_BLOB ){
+        pData = sqlite3_value_blob(argv[1]);
+        if( pData ) memcpy(pSlot->z, pData, nByte);
+      }else{
+        pData = sqlite3_value_text(argv[1]);
+        memcpy(pSlot->z, pData, nByte);
+      }
+      break;
+    }
+  }
+}
+
+static int idxLargestIndex(sqlite3 *db, int *pnMax, char **pzErr){
+  int rc = SQLITE_OK;
+  const char *zMax = 
+    "SELECT max(i.seqno) FROM "
+    "  sqlite_schema AS s, "
+    "  pragma_index_list(s.name) AS l, "
+    "  pragma_index_info(l.name) AS i "
+    "WHERE s.type = 'table'";
+  sqlite3_stmt *pMax = 0;
+
+  *pnMax = 0;
+  rc = idxPrepareStmt(db, &pMax, pzErr, zMax);
+  if( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pMax) ){
+    *pnMax = sqlite3_column_int(pMax, 0) + 1;
+  }
+  idxFinalize(&rc, pMax);
+
+  return rc;
+}
+
+static int idxPopulateOneStat1(
+  sqlite3expert *p,
+  sqlite3_stmt *pIndexXInfo,
+  sqlite3_stmt *pWriteStat,
+  const char *zTab,
+  const char *zIdx,
+  char **pzErr
+){
+  char *zCols = 0;
+  char *zOrder = 0;
+  char *zQuery = 0;
+  int nCol = 0;
+  int i;
+  sqlite3_stmt *pQuery = 0;
+  int *aStat = 0;
+  int rc = SQLITE_OK;
+
+  assert( p->iSample>0 );
+
+  /* Formulate the query text */
+  sqlite3_bind_text(pIndexXInfo, 1, zIdx, -1, SQLITE_STATIC);
+  while( SQLITE_OK==rc && SQLITE_ROW==sqlite3_step(pIndexXInfo) ){
+    const char *zComma = zCols==0 ? "" : ", ";
+    const char *zName = (const char*)sqlite3_column_text(pIndexXInfo, 0);
+    const char *zColl = (const char*)sqlite3_column_text(pIndexXInfo, 1);
+    if( zName==0 ){
+      /* This index contains an expression. Ignore it. */
+      sqlite3_free(zCols);
+      sqlite3_free(zOrder);
+      return sqlite3_reset(pIndexXInfo);
+    }
+    zCols = idxAppendText(&rc, zCols, 
+        "%sx.%Q IS sqlite_expert_rem(%d, x.%Q) COLLATE %s", 
+        zComma, zName, nCol, zName, zColl
+    );
+    zOrder = idxAppendText(&rc, zOrder, "%s%d", zComma, ++nCol);
+  }
+  sqlite3_reset(pIndexXInfo);
+  if( rc==SQLITE_OK ){
+    if( p->iSample==100 ){
+      zQuery = sqlite3_mprintf(
+          "SELECT %s FROM %Q x ORDER BY %s", zCols, zTab, zOrder
+      );
+    }else{
+      zQuery = sqlite3_mprintf(
+          "SELECT %s FROM temp."UNIQUE_TABLE_NAME" x ORDER BY %s", zCols, zOrder
+      );
+    }
+  }
+  sqlite3_free(zCols);
+  sqlite3_free(zOrder);
+
+  /* Formulate the query text */
+  if( rc==SQLITE_OK ){
+    sqlite3 *dbrem = (p->iSample==100 ? p->db : p->dbv);
+    rc = idxPrepareStmt(dbrem, &pQuery, pzErr, zQuery);
+  }
+  sqlite3_free(zQuery);
+
+  if( rc==SQLITE_OK ){
+    aStat = (int*)idxMalloc(&rc, sizeof(int)*(nCol+1));
+  }
+  if( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pQuery) ){
+    IdxHashEntry *pEntry;
+    char *zStat = 0;
+    for(i=0; i<=nCol; i++) aStat[i] = 1;
+    while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pQuery) ){
+      aStat[0]++;
+      for(i=0; i<nCol; i++){
+        if( sqlite3_column_int(pQuery, i)==0 ) break;
+      }
+      for(/*no-op*/; i<nCol; i++){
+        aStat[i+1]++;
+      }
+    }
+
+    if( rc==SQLITE_OK ){
+      int s0 = aStat[0];
+      zStat = sqlite3_mprintf("%d", s0);
+      if( zStat==0 ) rc = SQLITE_NOMEM;
+      for(i=1; rc==SQLITE_OK && i<=nCol; i++){
+        zStat = idxAppendText(&rc, zStat, " %d", (s0+aStat[i]/2) / aStat[i]);
+      }
+    }
+
+    if( rc==SQLITE_OK ){
+      sqlite3_bind_text(pWriteStat, 1, zTab, -1, SQLITE_STATIC);
+      sqlite3_bind_text(pWriteStat, 2, zIdx, -1, SQLITE_STATIC);
+      sqlite3_bind_text(pWriteStat, 3, zStat, -1, SQLITE_STATIC);
+      sqlite3_step(pWriteStat);
+      rc = sqlite3_reset(pWriteStat);
+    }
+
+    pEntry = idxHashFind(&p->hIdx, zIdx, STRLEN(zIdx));
+    if( pEntry ){
+      assert( pEntry->zVal2==0 );
+      pEntry->zVal2 = zStat;
+    }else{
+      sqlite3_free(zStat);
+    }
+  }
+  sqlite3_free(aStat);
+  idxFinalize(&rc, pQuery);
+
+  return rc;
+}
+
+static int idxBuildSampleTable(sqlite3expert *p, const char *zTab){
+  int rc;
+  char *zSql;
+
+  rc = sqlite3_exec(p->dbv,"DROP TABLE IF EXISTS temp."UNIQUE_TABLE_NAME,0,0,0);
+  if( rc!=SQLITE_OK ) return rc;
+
+  zSql = sqlite3_mprintf(
+      "CREATE TABLE temp." UNIQUE_TABLE_NAME " AS SELECT * FROM %Q", zTab
+  );
+  if( zSql==0 ) return SQLITE_NOMEM;
+  rc = sqlite3_exec(p->dbv, zSql, 0, 0, 0);
+  sqlite3_free(zSql);
+
+  return rc;
+}
+
+/*
+** This function is called as part of sqlite3_expert_analyze(). Candidate
+** indexes have already been created in database sqlite3expert.dbm, this
+** function populates sqlite_stat1 table in the same database.
+**
+** The stat1 data is generated by querying the 
+*/
+static int idxPopulateStat1(sqlite3expert *p, char **pzErr){
+  int rc = SQLITE_OK;
+  int nMax =0;
+  struct IdxRemCtx *pCtx = 0;
+  struct IdxSampleCtx samplectx; 
+  int i;
+  i64 iPrev = -100000;
+  sqlite3_stmt *pAllIndex = 0;
+  sqlite3_stmt *pIndexXInfo = 0;
+  sqlite3_stmt *pWrite = 0;
+
+  const char *zAllIndex =
+    "SELECT s.rowid, s.name, l.name FROM "
+    "  sqlite_schema AS s, "
+    "  pragma_index_list(s.name) AS l "
+    "WHERE s.type = 'table'";
+  const char *zIndexXInfo = 
+    "SELECT name, coll FROM pragma_index_xinfo(?) WHERE key";
+  const char *zWrite = "INSERT INTO sqlite_stat1 VALUES(?, ?, ?)";
+
+  /* If iSample==0, no sqlite_stat1 data is required. */
+  if( p->iSample==0 ) return SQLITE_OK;
+
+  rc = idxLargestIndex(p->dbm, &nMax, pzErr);
+  if( nMax<=0 || rc!=SQLITE_OK ) return rc;
+
+  rc = sqlite3_exec(p->dbm, "ANALYZE; PRAGMA writable_schema=1", 0, 0, 0);
+
+  if( rc==SQLITE_OK ){
+    int nByte = sizeof(struct IdxRemCtx) + (sizeof(struct IdxRemSlot) * nMax);
+    pCtx = (struct IdxRemCtx*)idxMalloc(&rc, nByte);
+  }
+
+  if( rc==SQLITE_OK ){
+    sqlite3 *dbrem = (p->iSample==100 ? p->db : p->dbv);
+    rc = sqlite3_create_function(dbrem, "sqlite_expert_rem", 
+        2, SQLITE_UTF8, (void*)pCtx, idxRemFunc, 0, 0
+    );
+  }
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_function(p->db, "sqlite_expert_sample", 
+        0, SQLITE_UTF8, (void*)&samplectx, idxSampleFunc, 0, 0
+    );
+  }
+
+  if( rc==SQLITE_OK ){
+    pCtx->nSlot = nMax+1;
+    rc = idxPrepareStmt(p->dbm, &pAllIndex, pzErr, zAllIndex);
+  }
+  if( rc==SQLITE_OK ){
+    rc = idxPrepareStmt(p->dbm, &pIndexXInfo, pzErr, zIndexXInfo);
+  }
+  if( rc==SQLITE_OK ){
+    rc = idxPrepareStmt(p->dbm, &pWrite, pzErr, zWrite);
+  }
+
+  while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pAllIndex) ){
+    i64 iRowid = sqlite3_column_int64(pAllIndex, 0);
+    const char *zTab = (const char*)sqlite3_column_text(pAllIndex, 1);
+    const char *zIdx = (const char*)sqlite3_column_text(pAllIndex, 2);
+    if( zTab==0 || zIdx==0 ) continue;
+    if( p->iSample<100 && iPrev!=iRowid ){
+      samplectx.target = (double)p->iSample / 100.0;
+      samplectx.iTarget = p->iSample;
+      samplectx.nRow = 0.0;
+      samplectx.nRet = 0.0;
+      rc = idxBuildSampleTable(p, zTab);
+      if( rc!=SQLITE_OK ) break;
+    }
+    rc = idxPopulateOneStat1(p, pIndexXInfo, pWrite, zTab, zIdx, pzErr);
+    iPrev = iRowid;
+  }
+  if( rc==SQLITE_OK && p->iSample<100 ){
+    rc = sqlite3_exec(p->dbv, 
+        "DROP TABLE IF EXISTS temp." UNIQUE_TABLE_NAME, 0,0,0
+    );
+  }
+
+  idxFinalize(&rc, pAllIndex);
+  idxFinalize(&rc, pIndexXInfo);
+  idxFinalize(&rc, pWrite);
+
+  if( pCtx ){
+    for(i=0; i<pCtx->nSlot; i++){
+      sqlite3_free(pCtx->aSlot[i].z);
+    }
+    sqlite3_free(pCtx);
+  }
+
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_exec(p->dbm, "ANALYZE sqlite_schema", 0, 0, 0);
+  }
+
+  sqlite3_create_function(p->db, "sqlite_expert_rem", 2, SQLITE_UTF8, 0,0,0,0);
+  sqlite3_create_function(p->db, "sqlite_expert_sample", 0,SQLITE_UTF8,0,0,0,0);
+
+  sqlite3_exec(p->db, "DROP TABLE IF EXISTS temp."UNIQUE_TABLE_NAME,0,0,0);
+  return rc;
+}
+
+/*
+** Define and possibly pretend to use a useless collation sequence.
+** This pretense allows expert to accept SQL using custom collations.
+*/
+int dummyCompare(void *up1, int up2, const void *up3, int up4, const void *up5){
+  (void)up1;
+  (void)up2;
+  (void)up3;
+  (void)up4;
+  (void)up5;
+  assert(0); /* VDBE should never be run. */
+  return 0;
+}
+/* And a callback to register above upon actual need */
+void useDummyCS(void *up1, sqlite3 *db, int etr, const char *zName){
+  (void)up1;
+  sqlite3_create_collation_v2(db, zName, etr, 0, dummyCompare, 0);
+}
+
+#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS) \
+  && !defined(SQLITE_OMIT_INTROSPECTION_PRAGMAS)
+/*
+** dummy functions for no-op implementation of UDFs during expert's work
+*/
+void dummyUDF(sqlite3_context *up1, int up2, sqlite3_value **up3){
+  (void)up1;
+  (void)up2;
+  (void)up3;
+  assert(0); /* VDBE should never be run. */
+}
+void dummyUDFvalue(sqlite3_context *up1){
+  (void)up1;
+  assert(0); /* VDBE should never be run. */
+}
+
+/*
+** Register UDFs from user database with another.
+*/
+int registerUDFs(sqlite3 *dbSrc, sqlite3 *dbDst){
+  sqlite3_stmt *pStmt;
+  int rc = sqlite3_prepare_v2(dbSrc,
+            "SELECT name,type,enc,narg,flags "
+            "FROM pragma_function_list() "
+            "WHERE builtin==0", -1, &pStmt, 0);
+  if( rc==SQLITE_OK ){
+    while( SQLITE_ROW==(rc = sqlite3_step(pStmt)) ){
+      int nargs = sqlite3_column_int(pStmt,3);
+      int flags = sqlite3_column_int(pStmt,4);
+      const char *name = (char*)sqlite3_column_text(pStmt,0);
+      const char *type = (char*)sqlite3_column_text(pStmt,1);
+      const char *enc = (char*)sqlite3_column_text(pStmt,2);
+      if( name==0 || type==0 || enc==0 ){
+        /* no-op.  Only happens on OOM */
+      }else{
+        int ienc = SQLITE_UTF8;
+        int rcf = SQLITE_ERROR;
+        if( strcmp(enc,"utf16le")==0 ) ienc = SQLITE_UTF16LE;
+        else if( strcmp(enc,"utf16be")==0 ) ienc = SQLITE_UTF16BE;
+        ienc |= (flags & (SQLITE_DETERMINISTIC|SQLITE_DIRECTONLY));
+        if( strcmp(type,"w")==0 ){
+          rcf = sqlite3_create_window_function(dbDst,name,nargs,ienc,0,
+                                               dummyUDF,dummyUDFvalue,0,0,0);
+        }else if( strcmp(type,"a")==0 ){
+          rcf = sqlite3_create_function(dbDst,name,nargs,ienc,0,
+                                        0,dummyUDF,dummyUDFvalue);
+        }else if( strcmp(type,"s")==0 ){
+          rcf = sqlite3_create_function(dbDst,name,nargs,ienc,0,
+                                        dummyUDF,0,0);
+        }
+        if( rcf!=SQLITE_OK ){
+          rc = rcf;
+          break;
+        }
+      }
+    }
+    sqlite3_finalize(pStmt);
+    if( rc==SQLITE_DONE ) rc = SQLITE_OK;
+  }
+  return rc;
+}
+#endif
+
+/*
+** Allocate a new sqlite3expert object.
+*/
+sqlite3expert *sqlite3_expert_new(sqlite3 *db, char **pzErrmsg){
+  int rc = SQLITE_OK;
+  sqlite3expert *pNew;
+
+  pNew = (sqlite3expert*)idxMalloc(&rc, sizeof(sqlite3expert));
+
+  /* Open two in-memory databases to work with. The "vtab database" (dbv)
+  ** will contain a virtual table corresponding to each real table in
+  ** the user database schema, and a copy of each view. It is used to
+  ** collect information regarding the WHERE, ORDER BY and other clauses
+  ** of the user's query.
+  */
+  if( rc==SQLITE_OK ){
+    pNew->db = db;
+    pNew->iSample = 100;
+    rc = sqlite3_open(":memory:", &pNew->dbv);
+  }
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_open(":memory:", &pNew->dbm);
+    if( rc==SQLITE_OK ){
+      sqlite3_db_config(pNew->dbm, SQLITE_DBCONFIG_TRIGGER_EQP, 1, (int*)0);
+    }
+  }
+
+  /* Allow custom collations to be dealt with through prepare. */
+  if( rc==SQLITE_OK ) rc = sqlite3_collation_needed(pNew->dbm,0,useDummyCS);
+  if( rc==SQLITE_OK ) rc = sqlite3_collation_needed(pNew->dbv,0,useDummyCS);
+
+#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS) \
+  && !defined(SQLITE_OMIT_INTROSPECTION_PRAGMAS)
+  /* Register UDFs from database [db] with [dbm] and [dbv]. */
+  if( rc==SQLITE_OK ){
+    rc = registerUDFs(pNew->db, pNew->dbm);
+  }
+  if( rc==SQLITE_OK ){
+    rc = registerUDFs(pNew->db, pNew->dbv);
+  }
+#endif
+
+  /* Copy the entire schema of database [db] into [dbm]. */
+  if( rc==SQLITE_OK ){
+    sqlite3_stmt *pSql = 0;
+    rc = idxPrintfPrepareStmt(pNew->db, &pSql, pzErrmsg, 
+        "SELECT sql, name, substr(sql,1,14)=='create virtual' COLLATE nocase"
+        " FROM sqlite_schema WHERE substr(name,1,7)!='sqlite_' COLLATE nocase"
+        " ORDER BY 3 DESC, rowid"
+    );
+    while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pSql) ){
+      const char *zSql = (const char*)sqlite3_column_text(pSql, 0);
+      const char *zName = (const char*)sqlite3_column_text(pSql, 1);
+      int bExists = 0;
+      rc = expertDbContainsObject(pNew->dbm, zName, &bExists);
+      if( rc==SQLITE_OK && zSql && bExists==0 ){
+        rc = expertSchemaSql(pNew->dbm, zSql, pzErrmsg);
+      }
+    }
+    idxFinalize(&rc, pSql);
+  }
+
+  /* Create the vtab schema */
+  if( rc==SQLITE_OK ){
+    rc = idxCreateVtabSchema(pNew, pzErrmsg);
+  }
+
+  /* Register the auth callback with dbv */
+  if( rc==SQLITE_OK ){
+    sqlite3_set_authorizer(pNew->dbv, idxAuthCallback, (void*)pNew);
+  }
+
+  /* If an error has occurred, free the new object and reutrn NULL. Otherwise,
+  ** return the new sqlite3expert handle.  */
+  if( rc!=SQLITE_OK ){
+    sqlite3_expert_destroy(pNew);
+    pNew = 0;
+  }
+  return pNew;
+}
+
+/*
+** Configure an sqlite3expert object.
+*/
+int sqlite3_expert_config(sqlite3expert *p, int op, ...){
+  int rc = SQLITE_OK;
+  va_list ap;
+  va_start(ap, op);
+  switch( op ){
+    case EXPERT_CONFIG_SAMPLE: {
+      int iVal = va_arg(ap, int);
+      if( iVal<0 ) iVal = 0;
+      if( iVal>100 ) iVal = 100;
+      p->iSample = iVal;
+      break;
+    }
+    default:
+      rc = SQLITE_NOTFOUND;
+      break;
+  }
+
+  va_end(ap);
+  return rc;
+}
+
+/*
+** Add an SQL statement to the analysis.
+*/
+int sqlite3_expert_sql(
+  sqlite3expert *p,               /* From sqlite3_expert_new() */
+  const char *zSql,               /* SQL statement to add */
+  char **pzErr                    /* OUT: Error message (if any) */
+){
+  IdxScan *pScanOrig = p->pScan;
+  IdxStatement *pStmtOrig = p->pStatement;
+  int rc = SQLITE_OK;
+  const char *zStmt = zSql;
+
+  if( p->bRun ) return SQLITE_MISUSE;
+
+  while( rc==SQLITE_OK && zStmt && zStmt[0] ){
+    sqlite3_stmt *pStmt = 0;
+    /* Ensure that the provided statement compiles against user's DB. */
+    rc = idxPrepareStmt(p->db, &pStmt, pzErr, zStmt);
+    if( rc!=SQLITE_OK ) break;
+    sqlite3_finalize(pStmt);
+    rc = sqlite3_prepare_v2(p->dbv, zStmt, -1, &pStmt, &zStmt);
+    if( rc==SQLITE_OK ){
+      if( pStmt ){
+        IdxStatement *pNew;
+        const char *z = sqlite3_sql(pStmt);
+        int n = STRLEN(z);
+        pNew = (IdxStatement*)idxMalloc(&rc, sizeof(IdxStatement) + n+1);
+        if( rc==SQLITE_OK ){
+          pNew->zSql = (char*)&pNew[1];
+          memcpy(pNew->zSql, z, n+1);
+          pNew->pNext = p->pStatement;
+          if( p->pStatement ) pNew->iId = p->pStatement->iId+1;
+          p->pStatement = pNew;
+        }
+        sqlite3_finalize(pStmt);
+      }
+    }else{
+      idxDatabaseError(p->dbv, pzErr);
+    }
+  }
+
+  if( rc!=SQLITE_OK ){
+    idxScanFree(p->pScan, pScanOrig);
+    idxStatementFree(p->pStatement, pStmtOrig);
+    p->pScan = pScanOrig;
+    p->pStatement = pStmtOrig;
+  }
+
+  return rc;
+}
+
+int sqlite3_expert_analyze(sqlite3expert *p, char **pzErr){
+  int rc;
+  IdxHashEntry *pEntry;
+
+  /* Do trigger processing to collect any extra IdxScan structures */
+  rc = idxProcessTriggers(p, pzErr);
+
+  /* Create candidate indexes within the in-memory database file */
+  if( rc==SQLITE_OK ){
+    rc = idxCreateCandidates(p);
+  }else if ( rc==SQLITE_BUSY_TIMEOUT ){
+    if( pzErr )
+      *pzErr = sqlite3_mprintf("Cannot find a unique index name to propose.");
+    return rc;
+  }
+
+  /* Generate the stat1 data */
+  if( rc==SQLITE_OK ){
+    rc = idxPopulateStat1(p, pzErr);
+  }
+
+  /* Formulate the EXPERT_REPORT_CANDIDATES text */
+  for(pEntry=p->hIdx.pFirst; pEntry; pEntry=pEntry->pNext){
+    p->zCandidates = idxAppendText(&rc, p->zCandidates, 
+        "%s;%s%s\n", pEntry->zVal, 
+        pEntry->zVal2 ? " -- stat1: " : "", pEntry->zVal2
+    );
+  }
+
+  /* Figure out which of the candidate indexes are preferred by the query
+  ** planner and report the results to the user.  */
+  if( rc==SQLITE_OK ){
+    rc = idxFindIndexes(p, pzErr);
+  }
+
+  if( rc==SQLITE_OK ){
+    p->bRun = 1;
+  }
+  return rc;
+}
+
+/*
+** Return the total number of statements that have been added to this
+** sqlite3expert using sqlite3_expert_sql().
+*/
+int sqlite3_expert_count(sqlite3expert *p){
+  int nRet = 0;
+  if( p->pStatement ) nRet = p->pStatement->iId+1;
+  return nRet;
+}
+
+/*
+** Return a component of the report.
+*/
+const char *sqlite3_expert_report(sqlite3expert *p, int iStmt, int eReport){
+  const char *zRet = 0;
+  IdxStatement *pStmt;
+
+  if( p->bRun==0 ) return 0;
+  for(pStmt=p->pStatement; pStmt && pStmt->iId!=iStmt; pStmt=pStmt->pNext);
+  switch( eReport ){
+    case EXPERT_REPORT_SQL:
+      if( pStmt ) zRet = pStmt->zSql;
+      break;
+    case EXPERT_REPORT_INDEXES:
+      if( pStmt ) zRet = pStmt->zIdx;
+      break;
+    case EXPERT_REPORT_PLAN:
+      if( pStmt ) zRet = pStmt->zEQP;
+      break;
+    case EXPERT_REPORT_CANDIDATES:
+      zRet = p->zCandidates;
+      break;
+  }
+  return zRet;
+}
+
+/*
+** Free an sqlite3expert object.
+*/
+void sqlite3_expert_destroy(sqlite3expert *p){
+  if( p ){
+    sqlite3_close(p->dbm);
+    sqlite3_close(p->dbv);
+    idxScanFree(p->pScan, 0);
+    idxStatementFree(p->pStatement, 0);
+    idxTableFree(p->pTable);
+    idxWriteFree(p->pWrite);
+    idxHashClear(&p->hIdx);
+    sqlite3_free(p->zCandidates);
+    sqlite3_free(p);
+  }
+}
+
+#endif /* ifndef SQLITE_OMIT_VIRTUALTABLE */
diff --git a/ext/expert/sqlite3expert.h b/ext/expert/sqlite3expert.h
new file mode 100644
index 0000000000000000000000000000000000000000..6048137237a29a7031132ed6199269f4c76dc9d8
--- /dev/null
+++ b/ext/expert/sqlite3expert.h
@@ -0,0 +1,168 @@
+/*
+** 2017 April 07
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+*/
+#if !defined(SQLITEEXPERT_H)
+#define SQLITEEXPERT_H 1
+#include "sqlite3.h"
+
+typedef struct sqlite3expert sqlite3expert;
+
+/*
+** Create a new sqlite3expert object.
+**
+** If successful, a pointer to the new object is returned and (*pzErr) set
+** to NULL. Or, if an error occurs, NULL is returned and (*pzErr) set to
+** an English-language error message. In this case it is the responsibility
+** of the caller to eventually free the error message buffer using
+** sqlite3_free().
+*/
+sqlite3expert *sqlite3_expert_new(sqlite3 *db, char **pzErr);
+
+/*
+** Configure an sqlite3expert object.
+**
+** EXPERT_CONFIG_SAMPLE:
+**   By default, sqlite3_expert_analyze() generates sqlite_stat1 data for
+**   each candidate index. This involves scanning and sorting the entire
+**   contents of each user database table once for each candidate index
+**   associated with the table. For large databases, this can be 
+**   prohibitively slow. This option allows the sqlite3expert object to
+**   be configured so that sqlite_stat1 data is instead generated based on a
+**   subset of each table, or so that no sqlite_stat1 data is used at all.
+**
+**   A single integer argument is passed to this option. If the value is less
+**   than or equal to zero, then no sqlite_stat1 data is generated or used by
+**   the analysis - indexes are recommended based on the database schema only.
+**   Or, if the value is 100 or greater, complete sqlite_stat1 data is
+**   generated for each candidate index (this is the default). Finally, if the
+**   value falls between 0 and 100, then it represents the percentage of user
+**   table rows that should be considered when generating sqlite_stat1 data.
+**
+**   Examples:
+**
+**     // Do not generate any sqlite_stat1 data
+**     sqlite3_expert_config(pExpert, EXPERT_CONFIG_SAMPLE, 0);
+**
+**     // Generate sqlite_stat1 data based on 10% of the rows in each table.
+**     sqlite3_expert_config(pExpert, EXPERT_CONFIG_SAMPLE, 10);
+*/
+int sqlite3_expert_config(sqlite3expert *p, int op, ...);
+
+#define EXPERT_CONFIG_SAMPLE 1    /* int */
+
+/*
+** Specify zero or more SQL statements to be included in the analysis.
+**
+** Buffer zSql must contain zero or more complete SQL statements. This
+** function parses all statements contained in the buffer and adds them
+** to the internal list of statements to analyze. If successful, SQLITE_OK
+** is returned and (*pzErr) set to NULL. Or, if an error occurs - for example
+** due to a error in the SQL - an SQLite error code is returned and (*pzErr)
+** may be set to point to an English language error message. In this case
+** the caller is responsible for eventually freeing the error message buffer
+** using sqlite3_free().
+**
+** If an error does occur while processing one of the statements in the
+** buffer passed as the second argument, none of the statements in the
+** buffer are added to the analysis.
+**
+** This function must be called before sqlite3_expert_analyze(). If a call
+** to this function is made on an sqlite3expert object that has already
+** been passed to sqlite3_expert_analyze() SQLITE_MISUSE is returned
+** immediately and no statements are added to the analysis.
+*/
+int sqlite3_expert_sql(
+  sqlite3expert *p,               /* From a successful sqlite3_expert_new() */
+  const char *zSql,               /* SQL statement(s) to add */
+  char **pzErr                    /* OUT: Error message (if any) */
+);
+
+
+/*
+** This function is called after the sqlite3expert object has been configured
+** with all SQL statements using sqlite3_expert_sql() to actually perform
+** the analysis. Once this function has been called, it is not possible to
+** add further SQL statements to the analysis.
+**
+** If successful, SQLITE_OK is returned and (*pzErr) is set to NULL. Or, if
+** an error occurs, an SQLite error code is returned and (*pzErr) set to 
+** point to a buffer containing an English language error message. In this
+** case it is the responsibility of the caller to eventually free the buffer
+** using sqlite3_free().
+**
+** If an error does occur within this function, the sqlite3expert object
+** is no longer useful for any purpose. At that point it is no longer
+** possible to add further SQL statements to the object or to re-attempt
+** the analysis. The sqlite3expert object must still be freed using a call
+** sqlite3_expert_destroy().
+*/
+int sqlite3_expert_analyze(sqlite3expert *p, char **pzErr);
+
+/*
+** Return the total number of statements loaded using sqlite3_expert_sql().
+** The total number of SQL statements may be different from the total number
+** to calls to sqlite3_expert_sql().
+*/
+int sqlite3_expert_count(sqlite3expert*);
+
+/*
+** Return a component of the report.
+**
+** This function is called after sqlite3_expert_analyze() to extract the
+** results of the analysis. Each call to this function returns either a
+** NULL pointer or a pointer to a buffer containing a nul-terminated string.
+** The value passed as the third argument must be one of the EXPERT_REPORT_*
+** #define constants defined below.
+**
+** For some EXPERT_REPORT_* parameters, the buffer returned contains 
+** information relating to a specific SQL statement. In these cases that
+** SQL statement is identified by the value passed as the second argument.
+** SQL statements are numbered from 0 in the order in which they are parsed.
+** If an out-of-range value (less than zero or equal to or greater than the
+** value returned by sqlite3_expert_count()) is passed as the second argument
+** along with such an EXPERT_REPORT_* parameter, NULL is always returned.
+**
+** EXPERT_REPORT_SQL:
+**   Return the text of SQL statement iStmt.
+**
+** EXPERT_REPORT_INDEXES:
+**   Return a buffer containing the CREATE INDEX statements for all recommended
+**   indexes for statement iStmt. If there are no new recommeded indexes, NULL 
+**   is returned.
+**
+** EXPERT_REPORT_PLAN:
+**   Return a buffer containing the EXPLAIN QUERY PLAN output for SQL query
+**   iStmt after the proposed indexes have been added to the database schema.
+**
+** EXPERT_REPORT_CANDIDATES:
+**   Return a pointer to a buffer containing the CREATE INDEX statements 
+**   for all indexes that were tested (for all SQL statements). The iStmt
+**   parameter is ignored for EXPERT_REPORT_CANDIDATES calls.
+*/
+const char *sqlite3_expert_report(sqlite3expert*, int iStmt, int eReport);
+
+/*
+** Values for the third argument passed to sqlite3_expert_report().
+*/
+#define EXPERT_REPORT_SQL        1
+#define EXPERT_REPORT_INDEXES    2
+#define EXPERT_REPORT_PLAN       3
+#define EXPERT_REPORT_CANDIDATES 4
+
+/*
+** Free an (sqlite3expert*) handle and all associated resources. There 
+** should be one call to this function for each successful call to 
+** sqlite3-expert_new().
+*/
+void sqlite3_expert_destroy(sqlite3expert*);
+
+#endif  /* !defined(SQLITEEXPERT_H) */
diff --git a/ext/expert/test_expert.c b/ext/expert/test_expert.c
new file mode 100644
index 0000000000000000000000000000000000000000..cae5d0f258f7b9cfa3b5fdfdcd852b3a65ae3070
--- /dev/null
+++ b/ext/expert/test_expert.c
@@ -0,0 +1,212 @@
+/*
+** 2017 April 07
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+*/
+
+#if defined(SQLITE_TEST)
+
+#include "sqlite3expert.h"
+#include <assert.h>
+#include <string.h>
+#include "tclsqlite.h"
+
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+
+/*
+** Extract an sqlite3* db handle from the object passed as the second
+** argument. If successful, set *pDb to point to the db handle and return
+** TCL_OK. Otherwise, return TCL_ERROR.
+*/
+static int dbHandleFromObj(Tcl_Interp *interp, Tcl_Obj *pObj, sqlite3 **pDb){
+  Tcl_CmdInfo info;
+  if( 0==Tcl_GetCommandInfo(interp, Tcl_GetString(pObj), &info) ){
+    Tcl_AppendResult(interp, "no such handle: ", Tcl_GetString(pObj), 0);
+    return TCL_ERROR;
+  }
+
+  *pDb = *(sqlite3 **)info.objClientData;
+  return TCL_OK;
+}
+
+
+/*
+** Tclcmd:  $expert sql SQL
+**          $expert analyze
+**          $expert count
+**          $expert report STMT EREPORT
+**          $expert destroy
+*/
+static int SQLITE_TCLAPI testExpertCmd(
+  void *clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  sqlite3expert *pExpert = (sqlite3expert*)clientData;
+  struct Subcmd {
+    const char *zSub;
+    int nArg;
+    const char *zMsg;
+  } aSub[] = {
+    { "sql",       1, "TABLE",        }, /* 0 */
+    { "analyze",   0, "",             }, /* 1 */
+    { "count",     0, "",             }, /* 2 */
+    { "report",    2, "STMT EREPORT", }, /* 3 */
+    { "destroy",   0, "",             }, /* 4 */
+    { 0 }
+  };
+  int iSub;
+  int rc = TCL_OK;
+  char *zErr = 0;
+
+  if( objc<2 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "SUBCOMMAND ...");
+    return TCL_ERROR;
+  }
+  rc = Tcl_GetIndexFromObjStruct(interp, 
+      objv[1], aSub, sizeof(aSub[0]), "sub-command", 0, &iSub
+  );
+  if( rc!=TCL_OK ) return rc;
+  if( objc!=2+aSub[iSub].nArg ){
+    Tcl_WrongNumArgs(interp, 2, objv, aSub[iSub].zMsg);
+    return TCL_ERROR;
+  }
+
+  switch( iSub ){
+    case 0: {      /* sql */
+      char *zArg = Tcl_GetString(objv[2]);
+      rc = sqlite3_expert_sql(pExpert, zArg, &zErr);
+      break;
+    }
+
+    case 1: {      /* analyze */
+      rc = sqlite3_expert_analyze(pExpert, &zErr);
+      break;
+    }
+
+    case 2: {      /* count */
+      int n = sqlite3_expert_count(pExpert);
+      Tcl_SetObjResult(interp, Tcl_NewIntObj(n));
+      break;
+    }
+
+    case 3: {      /* report */
+      const char *aEnum[] = {
+        "sql", "indexes", "plan", "candidates", 0
+      };
+      int iEnum;
+      int iStmt;
+      const char *zReport;
+
+      if( Tcl_GetIntFromObj(interp, objv[2], &iStmt) 
+       || Tcl_GetIndexFromObj(interp, objv[3], aEnum, "report", 0, &iEnum)
+      ){
+        return TCL_ERROR;
+      }
+
+      assert( EXPERT_REPORT_SQL==1 );
+      assert( EXPERT_REPORT_INDEXES==2 );
+      assert( EXPERT_REPORT_PLAN==3 );
+      assert( EXPERT_REPORT_CANDIDATES==4 );
+      zReport = sqlite3_expert_report(pExpert, iStmt, 1+iEnum);
+      Tcl_SetObjResult(interp, Tcl_NewStringObj(zReport, -1));
+      break;
+    }
+
+    default:       /* destroy */
+      assert( iSub==4 );     
+      Tcl_DeleteCommand(interp, Tcl_GetString(objv[0]));
+      break;
+  }
+
+  if( rc!=TCL_OK ){
+    if( zErr ){
+      Tcl_SetObjResult(interp, Tcl_NewStringObj(zErr, -1));
+    }else{
+      extern const char *sqlite3ErrName(int);
+      Tcl_SetObjResult(interp, Tcl_NewStringObj(sqlite3ErrName(rc), -1));
+    }
+  }
+  sqlite3_free(zErr);
+  return rc;
+}
+
+static void SQLITE_TCLAPI testExpertDel(void *clientData){
+  sqlite3expert *pExpert = (sqlite3expert*)clientData;
+  sqlite3_expert_destroy(pExpert);
+}
+
+/*
+** sqlite3_expert_new DB
+*/
+static int SQLITE_TCLAPI test_sqlite3_expert_new(
+  void * clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  static int iCmd = 0;
+  sqlite3 *db;
+  char *zCmd = 0;
+  char *zErr = 0;
+  sqlite3expert *pExpert;
+  int rc = TCL_OK;
+
+  if( objc!=2 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "DB");
+    return TCL_ERROR;
+  }
+  if( dbHandleFromObj(interp, objv[1], &db) ){
+    return TCL_ERROR;
+  }
+
+  zCmd = sqlite3_mprintf("sqlite3expert%d", ++iCmd);
+  if( zCmd==0 ){
+    Tcl_AppendResult(interp, "out of memory", (char*)0);
+    return TCL_ERROR;
+  }
+
+  pExpert = sqlite3_expert_new(db, &zErr);
+  if( pExpert==0 ){
+    Tcl_AppendResult(interp, zErr, (char*)0);
+    rc = TCL_ERROR;
+  }else{
+    void *p = (void*)pExpert;
+    Tcl_CreateObjCommand(interp, zCmd, testExpertCmd, p, testExpertDel);
+    Tcl_SetObjResult(interp, Tcl_NewStringObj(zCmd, -1));
+  }
+
+  sqlite3_free(zCmd);
+  sqlite3_free(zErr);
+  return rc;
+}
+
+#endif  /* ifndef SQLITE_OMIT_VIRTUALTABLE */
+
+int TestExpert_Init(Tcl_Interp *interp){
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+  struct Cmd {
+    const char *zCmd;
+    Tcl_ObjCmdProc *xProc;
+  } aCmd[] = {
+    { "sqlite3_expert_new", test_sqlite3_expert_new },
+  };
+  int i;
+
+  for(i=0; i<sizeof(aCmd)/sizeof(struct Cmd); i++){
+    struct Cmd *p = &aCmd[i];
+    Tcl_CreateObjCommand(interp, p->zCmd, p->xProc, 0, 0);
+  }
+#endif
+  return TCL_OK;
+}
+
+#endif
diff --git a/ext/fts3/README.content b/ext/fts3/README.content
new file mode 100644
index 0000000000000000000000000000000000000000..b6a75399bec9623fbb1edb6ddb2bb498b8820fd4
--- /dev/null
+++ b/ext/fts3/README.content
@@ -0,0 +1,176 @@
+
+FTS4 CONTENT OPTION
+
+  Normally, in order to create a full-text index on a dataset, the FTS4 
+  module stores a copy of all indexed documents in a specially created 
+  database table.
+
+  As of SQLite version 3.7.9, FTS4 supports a new option - "content" -
+  designed to extend FTS4 to support the creation of full-text indexes where:
+
+    * The indexed documents are not stored within the SQLite database 
+      at all (a "contentless" FTS4 table), or
+
+    * The indexed documents are stored in a database table created and
+      managed by the user (an "external content" FTS4 table).
+
+  Because the indexed documents themselves are usually much larger than 
+  the full-text index, the content option can sometimes be used to achieve 
+  significant space savings.
+
+CONTENTLESS FTS4 TABLES
+
+  In order to create an FTS4 table that does not store a copy of the indexed
+  documents at all, the content option should be set to an empty string.
+  For example, the following SQL creates such an FTS4 table with three
+  columns - "a", "b", and "c":
+
+    CREATE VIRTUAL TABLE t1 USING fts4(content="", a, b, c);
+
+  Data can be inserted into such an FTS4 table using an INSERT statements.
+  However, unlike ordinary FTS4 tables, the user must supply an explicit
+  integer docid value. For example:
+
+    -- This statement is Ok:
+    INSERT INTO t1(docid, a, b, c) VALUES(1, 'a b c', 'd e f', 'g h i');
+
+    -- This statement causes an error, as no docid value has been provided:
+    INSERT INTO t1(a, b, c) VALUES('j k l', 'm n o', 'p q r');
+
+  It is not possible to UPDATE or DELETE a row stored in a contentless FTS4
+  table. Attempting to do so is an error.
+
+  Contentless FTS4 tables also support SELECT statements. However, it is
+  an error to attempt to retrieve the value of any table column other than
+  the docid column. The auxiliary function matchinfo() may be used, but
+  snippet() and offsets() may not. For example:
+
+    -- The following statements are Ok:
+    SELECT docid FROM t1 WHERE t1 MATCH 'xxx';
+    SELECT docid FROM t1 WHERE a MATCH 'xxx';
+    SELECT matchinfo(t1) FROM t1 WHERE t1 MATCH 'xxx';
+
+    -- The following statements all cause errors, as the value of columns
+    -- other than docid are required to evaluate them.
+    SELECT * FROM t1;
+    SELECT a, b FROM t1 WHERE t1 MATCH 'xxx';
+    SELECT docid FROM t1 WHERE a LIKE 'xxx%';
+    SELECT snippet(t1) FROM t1 WHERE t1 MATCH 'xxx';
+
+  Errors related to attempting to retrieve column values other than docid
+  are runtime errors that occur within sqlite3_step(). In some cases, for
+  example if the MATCH expression in a SELECT query matches zero rows, there
+  may be no error at all even if a statement does refer to column values 
+  other than docid.
+
+EXTERNAL CONTENT FTS4 TABLES
+
+  An "external content" FTS4 table is similar to a contentless table, except
+  that if evaluation of a query requires the value of a column other than 
+  docid, FTS4 attempts to retrieve that value from a table (or view, or 
+  virtual table) nominated by the user (hereafter referred to as the "content
+  table"). The FTS4 module never writes to the content table, and writing
+  to the content table does not affect the full-text index. It is the
+  responsibility of the user to ensure that the content table and the 
+  full-text index are consistent.
+
+  An external content FTS4 table is created by setting the content option
+  to the name of a table (or view, or virtual table) that may be queried by
+  FTS4 to retrieve column values when required. If the nominated table does
+  not exist, then an external content table behaves in the same way as
+  a contentless table. For example:
+
+    CREATE TABLE t2(id INTEGER PRIMARY KEY, a, b, c);
+    CREATE VIRTUAL TABLE t3 USING fts4(content="t2", a, c);
+
+  Assuming the nominated table does exist, then its columns must be the same 
+  as or a superset of those defined for the FTS table.
+
+  When a users query on the FTS table requires a column value other than
+  docid, FTS attempts to read this value from the corresponding column of
+  the row in the content table with a rowid value equal to the current FTS
+  docid. Or, if such a row cannot be found in the content table, a NULL
+  value is used instead. For example:
+
+    CREATE TABLE t2(id INTEGER PRIMARY KEY, a, b, c, d);
+    CREATE VIRTUAL TABLE t3 USING fts4(content="t2", b, c);
+  
+    INSERT INTO t2 VALUES(2, 'a b', 'c d', 'e f');
+    INSERT INTO t2 VALUES(3, 'g h', 'i j', 'k l');
+    INSERT INTO t3(docid, b, c) SELECT id, b, c FROM t2;
+
+    -- The following query returns a single row with two columns containing
+    -- the text values "i j" and "k l".
+    --
+    -- The query uses the full-text index to discover that the MATCH 
+    -- term matches the row with docid=3. It then retrieves the values
+    -- of columns b and c from the row with rowid=3 in the content table
+    -- to return.
+    --
+    SELECT * FROM t3 WHERE t3 MATCH 'k';
+
+    -- Following the UPDATE, the query still returns a single row, this
+    -- time containing the text values "xxx" and "yyy". This is because the
+    -- full-text index still indicates that the row with docid=3 matches
+    -- the FTS4 query 'k', even though the documents stored in the content
+    -- table have been modified.
+    --
+    UPDATE t2 SET b = 'xxx', c = 'yyy' WHERE rowid = 3;
+    SELECT * FROM t3 WHERE t3 MATCH 'k';
+
+    -- Following the DELETE below, the query returns one row containing two
+    -- NULL values. NULL values are returned because FTS is unable to find
+    -- a row with rowid=3 within the content table.
+    --
+    DELETE FROM t2;
+    SELECT * FROM t3 WHERE t3 MATCH 'k';
+
+  When a row is deleted from an external content FTS4 table, FTS4 needs to
+  retrieve the column values of the row being deleted from the content table.
+  This is so that FTS4 can update the full-text index entries for each token
+  that occurs within the deleted row to indicate that that row has been 
+  deleted. If the content table row cannot be found, or if it contains values
+  inconsistent with the contents of the FTS index, the results can be difficult
+  to predict. The FTS index may be left containing entries corresponding to the
+  deleted row, which can lead to seemingly nonsensical results being returned
+  by subsequent SELECT queries. The same applies when a row is updated, as
+  internally an UPDATE is the same as a DELETE followed by an INSERT.
+  
+  Instead of writing separately to the full-text index and the content table,
+  some users may wish to use database triggers to keep the full-text index
+  up to date with respect to the set of documents stored in the content table.
+  For example, using the tables from earlier examples:
+
+    CREATE TRIGGER t2_bu BEFORE UPDATE ON t2 BEGIN
+      DELETE FROM t3 WHERE docid=old.rowid;
+    END;
+    CREATE TRIGGER t2_bd BEFORE DELETE ON t2 BEGIN
+      DELETE FROM t3 WHERE docid=old.rowid;
+    END;
+
+    CREATE TRIGGER t2_bu AFTER UPDATE ON t2 BEGIN
+      INSERT INTO t3(docid, b, c) VALUES(new.rowid, new.b, new.c);
+    END;
+    CREATE TRIGGER t2_bd AFTER INSERT ON t2 BEGIN
+      INSERT INTO t3(docid, b, c) VALUES(new.rowid, new.b, new.c);
+    END;
+
+  The DELETE trigger must be fired before the actual delete takes place
+  on the content table. This is so that FTS4 can still retrieve the original
+  values in order to update the full-text index. And the INSERT trigger must
+  be fired after the new row is inserted, so as to handle the case where the
+  rowid is assigned automatically within the system. The UPDATE trigger must
+  be split into two parts, one fired before and one after the update of the
+  content table, for the same reasons.
+
+  FTS4 features a special command similar to the 'optimize' command that
+  deletes the entire full-text index and rebuilds it based on the current
+  set of documents in the content table. Assuming again that "t3" is the
+  name of the external content FTS4 table, the command is:
+
+    INSERT INTO t3(t3) VALUES('rebuild');
+
+  This command may also be used with ordinary FTS4 tables, although it may
+  only be useful if the full-text index has somehow become corrupt. It is an
+  error to attempt to rebuild the full-text index maintained by a contentless
+  FTS4 table.
diff --git a/ext/fts3/README.syntax b/ext/fts3/README.syntax
new file mode 100644
index 0000000000000000000000000000000000000000..01bc80c5fbe9fce601884bf9e6dec46dab62c97e
--- /dev/null
+++ b/ext/fts3/README.syntax
@@ -0,0 +1,209 @@
+
+1. OVERVIEW
+
+  This README file describes the syntax of the arguments that may be passed to
+  the FTS3 MATCH operator used for full-text queries. For example, if table 
+  "t1" is an Fts3 virtual table, the following SQL query:
+
+    SELECT * FROM t1 WHERE <col> MATCH <full-text query>
+
+  may be used to retrieve all rows that match a specified for full-text query. 
+  The text "<col>" should be replaced by either the name of the fts3 table 
+  (in this case "t1"), or by the name of one of the columns of the fts3 
+  table. <full-text-query> should be replaced by an SQL expression that 
+  computes to a string containing an Fts3 query.
+
+  If the left-hand-side of the MATCH operator is set to the name of the
+  fts3 table, then by default the query may be matched against any column
+  of the table. If it is set to a column name, then by default the query
+  may only match the specified column. In both cases this may be overriden
+  as part of the query text (see sections 2 and 3 below).
+
+  As of SQLite version 3.6.8, Fts3 supports two slightly different query 
+  formats; the standard syntax, which is used by default, and the enhanced
+  query syntax which can be selected by compiling with the pre-processor
+  symbol SQLITE_ENABLE_FTS3_PARENTHESIS defined.
+
+    -DSQLITE_ENABLE_FTS3_PARENTHESIS
+
+2. STANDARD QUERY SYNTAX
+
+  When using the standard Fts3 query syntax, a query usually consists of a 
+  list of terms (words) separated by white-space characters. To match a
+  query, a row (or column) of an Fts3 table must contain each of the specified
+  terms. For example, the following query:
+
+    <col> MATCH 'hello world'
+
+  matches rows (or columns, if <col> is the name of a column name) that 
+  contain at least one instance of the token "hello", and at least one 
+  instance of the token "world". Tokens may be grouped into phrases using
+  quotation marks. In this case, a matching row or column must contain each
+  of the tokens in the phrase in the order specified, with no intervening
+  tokens. For example, the query:
+
+    <col> MATCH '"hello world" joe"
+
+  matches the first of the following two documents, but not the second or
+  third:
+
+    "'Hello world', said Joe."
+    "One should always greet the world with a cheery hello, thought Joe."
+    "How many hello world programs could their be?"
+
+  As well as grouping tokens together by phrase, the binary NEAR operator 
+  may be used to search for rows that contain two or more specified tokens 
+  or phrases within a specified proximity of each other. The NEAR operator
+  must always be specified in upper case. The word "near" in lower or mixed
+  case is treated as an ordinary token. For example, the following query:
+
+    <col> MATCH 'engineering NEAR consultancy'
+
+  matches rows that contain both the "engineering" and "consultancy" tokens
+  in the same column with not more than 10 other words between them. It does
+  not matter which of the two terms occurs first in the document, only that
+  they be seperated by only 10 tokens or less. The user may also specify
+  a different required proximity by adding "/N" immediately after the NEAR
+  operator, where N is an integer. For example:
+
+    <col> MATCH 'engineering NEAR/5 consultancy'
+
+  searches for a row containing an instance of each specified token seperated
+  by not more than 5 other tokens. More than one NEAR operator can be used
+  in as sequence. For example this query:
+
+    <col> MATCH 'reliable NEAR/2 engineering NEAR/5 consultancy'
+
+  searches for a row that contains an instance of the token "reliable" 
+  seperated by not more than two tokens from an instance of "engineering",
+  which is in turn separated by not more than 5 other tokens from an
+  instance of the term "consultancy". Phrases enclosed in quotes may
+  also be used as arguments to the NEAR operator.
+
+  Similar to the NEAR operator, one or more tokens or phrases may be 
+  separated by OR operators. In this case, only one of the specified tokens
+  or phrases must appear in the document. For example, the query:
+
+    <col> MATCH 'hello OR world'
+
+  matches rows that contain either the term "hello", or the term "world",
+  or both. Note that unlike in many programming languages, the OR operator
+  has a higher precedence than the AND operators implied between white-space
+  separated tokens. The following query matches documents that contain the
+  term 'sqlite' and at least one of the terms 'fantastic' or 'impressive',
+  not those that contain both 'sqlite' and 'fantastic' or 'impressive':
+
+    <col> MATCH 'sqlite fantastic OR impressive'
+
+  Any token that is part of an Fts3 query expression, whether or not it is
+  part of a phrase enclosed in quotes, may have a '*' character appended to
+  it. In this case, the token matches all terms that begin with the characters
+  of the token, not just those that exactly match it. For example, the 
+  following query:
+
+    <col> MATCH 'sql*'
+
+  matches all rows that contain the term "SQLite", as well as those that
+  contain "SQL".
+
+  A token that is not part of a quoted phrase may be preceded by a '-'
+  character, which indicates that matching rows must not contain the 
+  specified term. For example, the following:
+
+    <col> MATCH '"database engine" -sqlite'
+
+  matches rows that contain the phrase "database engine" but do not contain
+  the term "sqlite". If the '-' character occurs inside a quoted phrase,
+  it is ignored. It is possible to use both the '-' prefix and the '*' postfix
+  on a single term. At this time, all Fts3 queries must contain at least
+  one term or phrase that is not preceded by the '-' prefix.
+
+  Regardless of whether or not a table name or column name is used on the 
+  left hand side of the MATCH operator, a specific column of the fts3 table
+  may be associated with each token in a query by preceding a token with
+  a column name followed by a ':' character. For example, regardless of what
+  is specified for <col>, the following query requires that column "col1"
+  of the table contains the term "hello", and that column "col2" of the
+  table contains the term "world". If the table does not contain columns
+  named "col1" and "col2", then an error is returned and the query is
+  not run.
+
+    <col> MATCH 'col1:hello col2:world'
+
+  It is not possible to associate a specific table column with a quoted 
+  phrase or a term preceded by a '-' operator. A '*' character may be
+  appended to a term associated with a specific column for prefix matching.
+
+3. ENHANCED QUERY SYNTAX
+
+  The enhanced query syntax is quite similar to the standard query syntax,
+  with the following four differences:
+
+  1) Parenthesis are supported. When using the enhanced query syntax,
+     parenthesis may be used to overcome the built-in precedence of the
+     supplied binary operators. For example, the following query:
+
+       <col> MATCH '(hello world) OR (simple example)'
+
+     matches documents that contain both "hello" and "world", and documents
+     that contain both "simple" and "example". It is not possible to forumlate
+     such a query using the standard syntax.
+
+  2) Instead of separating tokens and phrases by whitespace, an AND operator
+     may be explicitly specified. This does not change query processing at
+     all, but may be used to improve readability. For example, the following
+     query is handled identically to the one above:
+
+       <col> MATCH '(hello AND world) OR (simple AND example)'
+
+     As with the OR and NEAR operators, the AND operator must be specified
+     in upper case. The word "and" specified in lower or mixed case is 
+     handled as a regular token.
+
+  3) The '-' token prefix is not supported. Instead, a new binary operator,
+     NOT, is included. The NOT operator requires that the query specified
+     as its left-hand operator matches, but that the query specified as the
+     right-hand operator does not. For example, to query for all rows that
+     contain the term "example" but not the term "simple", the following
+     query could be used:
+
+       <col> MATCH 'example NOT simple'
+
+     As for all other operators, the NOT operator must be specified in
+     upper case. Otherwise it will be treated as a regular token.
+
+  4) Unlike in the standard syntax, where the OR operator has a higher
+     precedence than the implicit AND operator, when using the enhanced
+     syntax implicit and explict AND operators have a higher precedence
+     than OR operators. Using the enhanced syntax, the following two
+     queries are equivalent:
+
+       <col> MATCH 'sqlite fantastic OR impressive'
+       <col> MATCH '(sqlite AND fantastic) OR impressive'
+
+     however, when using the standard syntax, the query:
+
+       <col> MATCH 'sqlite fantastic OR impressive'
+
+     is equivalent to the enhanced syntax query:
+
+       <col> MATCH 'sqlite AND (fantastic OR impressive)'
+
+     The precedence of all enhanced syntax operators, in order from highest
+     to lowest, is:
+
+       NEAR       (highest precedence, tightest grouping)
+       NOT
+       AND
+       OR         (lowest precedence, loosest grouping)
+
+  Using the advanced syntax, it is possible to specify expressions enclosed
+  in parenthesis as operands to the NOT, AND and OR operators. However both
+  the left and right hand side operands of NEAR operators must be either
+  tokens or phrases. Attempting the following query will return an error:
+
+    <col> MATCH 'sqlite NEAR (fantastic OR impressive)'
+
+  Queries of this form must be re-written as:
+
+    <col> MATCH 'sqlite NEAR fantastic OR sqlite NEAR impressive'
diff --git a/ext/fts3/README.tokenizers b/ext/fts3/README.tokenizers
new file mode 100644
index 0000000000000000000000000000000000000000..70bdceff061d02a6a5ebb144aca876421d4782a0
--- /dev/null
+++ b/ext/fts3/README.tokenizers
@@ -0,0 +1,135 @@
+
+1. FTS3 Tokenizers
+
+  When creating a new full-text table, FTS3 allows the user to select
+  the text tokenizer implementation to be used when indexing text
+  by specifying a "tokenize" clause as part of the CREATE VIRTUAL TABLE
+  statement:
+
+    CREATE VIRTUAL TABLE <table-name> USING fts3(
+      <columns ...> [, tokenize <tokenizer-name> [<tokenizer-args>]]
+    );
+
+  The built-in tokenizers (valid values to pass as <tokenizer name>) are
+  "simple", "porter" and "unicode".
+
+  <tokenizer-args> should consist of zero or more white-space separated
+  arguments to pass to the selected tokenizer implementation. The 
+  interpretation of the arguments, if any, depends on the individual 
+  tokenizer.
+
+2. Custom Tokenizers
+
+  FTS3 allows users to provide custom tokenizer implementations. The 
+  interface used to create a new tokenizer is defined and described in 
+  the fts3_tokenizer.h source file.
+
+  Registering a new FTS3 tokenizer is similar to registering a new 
+  virtual table module with SQLite. The user passes a pointer to a
+  structure containing pointers to various callback functions that
+  make up the implementation of the new tokenizer type. For tokenizers,
+  the structure (defined in fts3_tokenizer.h) is called
+  "sqlite3_tokenizer_module".
+
+  FTS3 does not expose a C-function that users call to register new
+  tokenizer types with a database handle. Instead, the pointer must
+  be encoded as an SQL blob value and passed to FTS3 through the SQL
+  engine by evaluating a special scalar function, "fts3_tokenizer()".
+  The fts3_tokenizer() function may be called with one or two arguments,
+  as follows:
+
+    SELECT fts3_tokenizer(<tokenizer-name>);
+    SELECT fts3_tokenizer(<tokenizer-name>, <sqlite3_tokenizer_module ptr>);
+  
+  Where <tokenizer-name> is a string identifying the tokenizer and
+  <sqlite3_tokenizer_module ptr> is a pointer to an sqlite3_tokenizer_module
+  structure encoded as an SQL blob. If the second argument is present,
+  it is registered as tokenizer <tokenizer-name> and a copy of it
+  returned. If only one argument is passed, a pointer to the tokenizer
+  implementation currently registered as <tokenizer-name> is returned,
+  encoded as a blob. Or, if no such tokenizer exists, an SQL exception
+  (error) is raised.
+
+  SECURITY: If the fts3 extension is used in an environment where potentially
+    malicious users may execute arbitrary SQL (i.e. gears), they should be
+    prevented from invoking the fts3_tokenizer() function.  The
+    fts3_tokenizer() function is disabled by default. It is only enabled
+    by SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER. Do not enable it in
+    security sensitive environments.
+
+  See "Sample code" below for an example of calling the fts3_tokenizer()
+  function from C code.
+
+3. ICU Library Tokenizers
+
+  If this extension is compiled with the SQLITE_ENABLE_ICU pre-processor 
+  symbol defined, then there exists a built-in tokenizer named "icu" 
+  implemented using the ICU library. The first argument passed to the
+  xCreate() method (see fts3_tokenizer.h) of this tokenizer may be
+  an ICU locale identifier. For example "tr_TR" for Turkish as used
+  in Turkey, or "en_AU" for English as used in Australia. For example:
+
+    "CREATE VIRTUAL TABLE thai_text USING fts3(text, tokenizer icu th_TH)"
+
+  The ICU tokenizer implementation is very simple. It splits the input
+  text according to the ICU rules for finding word boundaries and discards
+  any tokens that consist entirely of white-space. This may be suitable
+  for some applications in some locales, but not all. If more complex
+  processing is required, for example to implement stemming or 
+  discard punctuation, this can be done by creating a tokenizer 
+  implementation that uses the ICU tokenizer as part of its implementation.
+
+  When using the ICU tokenizer this way, it is safe to overwrite the
+  contents of the strings returned by the xNext() method (see
+  fts3_tokenizer.h).
+
+4. Sample code.
+
+  The following two code samples illustrate the way C code should invoke
+  the fts3_tokenizer() scalar function:
+
+      int registerTokenizer(
+        sqlite3 *db, 
+        char *zName, 
+        const sqlite3_tokenizer_module *p
+      ){
+        int rc;
+        sqlite3_stmt *pStmt;
+        const char zSql[] = "SELECT fts3_tokenizer(?, ?)";
+      
+        rc = sqlite3_prepare_v2(db, zSql, -1, &pStmt, 0);
+        if( rc!=SQLITE_OK ){
+          return rc;
+        }
+      
+        sqlite3_bind_text(pStmt, 1, zName, -1, SQLITE_STATIC);
+        sqlite3_bind_blob(pStmt, 2, &p, sizeof(p), SQLITE_STATIC);
+        sqlite3_step(pStmt);
+      
+        return sqlite3_finalize(pStmt);
+      }
+      
+      int queryTokenizer(
+        sqlite3 *db, 
+        char *zName,  
+        const sqlite3_tokenizer_module **pp
+      ){
+        int rc;
+        sqlite3_stmt *pStmt;
+        const char zSql[] = "SELECT fts3_tokenizer(?)";
+      
+        *pp = 0;
+        rc = sqlite3_prepare_v2(db, zSql, -1, &pStmt, 0);
+        if( rc!=SQLITE_OK ){
+          return rc;
+        }
+      
+        sqlite3_bind_text(pStmt, 1, zName, -1, SQLITE_STATIC);
+        if( SQLITE_ROW==sqlite3_step(pStmt) ){
+          if( sqlite3_column_type(pStmt, 0)==SQLITE_BLOB ){
+            memcpy(pp, sqlite3_column_blob(pStmt, 0), sizeof(*pp));
+          }
+        }
+      
+        return sqlite3_finalize(pStmt);
+      }
diff --git a/ext/fts3/README.txt b/ext/fts3/README.txt
new file mode 100644
index 0000000000000000000000000000000000000000..517a2a043466cac040cb45686e397c9c650bb93e
--- /dev/null
+++ b/ext/fts3/README.txt
@@ -0,0 +1,4 @@
+This folder contains source code to the second full-text search
+extension for SQLite.  While the API is the same, this version uses a
+substantially different storage schema from fts1, so tables will need
+to be rebuilt.
diff --git a/ext/fts3/fts3.c b/ext/fts3/fts3.c
new file mode 100644
index 0000000000000000000000000000000000000000..e58f256a4887267f80f672fcfa81c592aad9eed0
--- /dev/null
+++ b/ext/fts3/fts3.c
@@ -0,0 +1,6194 @@
+/*
+** 2006 Oct 10
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This is an SQLite module implementing full-text search.
+*/
+
+/*
+** The code in this file is only compiled if:
+**
+**     * The FTS3 module is being built as an extension
+**       (in which case SQLITE_CORE is not defined), or
+**
+**     * The FTS3 module is being built into the core of
+**       SQLite (in which case SQLITE_ENABLE_FTS3 is defined).
+*/
+
+/* The full-text index is stored in a series of b+tree (-like)
+** structures called segments which map terms to doclists.  The
+** structures are like b+trees in layout, but are constructed from the
+** bottom up in optimal fashion and are not updatable.  Since trees
+** are built from the bottom up, things will be described from the
+** bottom up.
+**
+**
+**** Varints ****
+** The basic unit of encoding is a variable-length integer called a
+** varint.  We encode variable-length integers in little-endian order
+** using seven bits * per byte as follows:
+**
+** KEY:
+**         A = 0xxxxxxx    7 bits of data and one flag bit
+**         B = 1xxxxxxx    7 bits of data and one flag bit
+**
+**  7 bits - A
+** 14 bits - BA
+** 21 bits - BBA
+** and so on.
+**
+** This is similar in concept to how sqlite encodes "varints" but
+** the encoding is not the same.  SQLite varints are big-endian
+** are are limited to 9 bytes in length whereas FTS3 varints are
+** little-endian and can be up to 10 bytes in length (in theory).
+**
+** Example encodings:
+**
+**     1:    0x01
+**   127:    0x7f
+**   128:    0x81 0x00
+**
+**
+**** Document lists ****
+** A doclist (document list) holds a docid-sorted list of hits for a
+** given term.  Doclists hold docids and associated token positions.
+** A docid is the unique integer identifier for a single document.
+** A position is the index of a word within the document.  The first 
+** word of the document has a position of 0.
+**
+** FTS3 used to optionally store character offsets using a compile-time
+** option.  But that functionality is no longer supported.
+**
+** A doclist is stored like this:
+**
+** array {
+**   varint docid;          (delta from previous doclist)
+**   array {                (position list for column 0)
+**     varint position;     (2 more than the delta from previous position)
+**   }
+**   array {
+**     varint POS_COLUMN;   (marks start of position list for new column)
+**     varint column;       (index of new column)
+**     array {
+**       varint position;   (2 more than the delta from previous position)
+**     }
+**   }
+**   varint POS_END;        (marks end of positions for this document.
+** }
+**
+** Here, array { X } means zero or more occurrences of X, adjacent in
+** memory.  A "position" is an index of a token in the token stream
+** generated by the tokenizer. Note that POS_END and POS_COLUMN occur 
+** in the same logical place as the position element, and act as sentinals
+** ending a position list array.  POS_END is 0.  POS_COLUMN is 1.
+** The positions numbers are not stored literally but rather as two more
+** than the difference from the prior position, or the just the position plus
+** 2 for the first position.  Example:
+**
+**   label:       A B C D E  F  G H   I  J K
+**   value:     123 5 9 1 1 14 35 0 234 72 0
+**
+** The 123 value is the first docid.  For column zero in this document
+** there are two matches at positions 3 and 10 (5-2 and 9-2+3).  The 1
+** at D signals the start of a new column; the 1 at E indicates that the
+** new column is column number 1.  There are two positions at 12 and 45
+** (14-2 and 35-2+12).  The 0 at H indicate the end-of-document.  The
+** 234 at I is the delta to next docid (357).  It has one position 70
+** (72-2) and then terminates with the 0 at K.
+**
+** A "position-list" is the list of positions for multiple columns for
+** a single docid.  A "column-list" is the set of positions for a single
+** column.  Hence, a position-list consists of one or more column-lists,
+** a document record consists of a docid followed by a position-list and
+** a doclist consists of one or more document records.
+**
+** A bare doclist omits the position information, becoming an 
+** array of varint-encoded docids.
+**
+**** Segment leaf nodes ****
+** Segment leaf nodes store terms and doclists, ordered by term.  Leaf
+** nodes are written using LeafWriter, and read using LeafReader (to
+** iterate through a single leaf node's data) and LeavesReader (to
+** iterate through a segment's entire leaf layer).  Leaf nodes have
+** the format:
+**
+** varint iHeight;             (height from leaf level, always 0)
+** varint nTerm;               (length of first term)
+** char pTerm[nTerm];          (content of first term)
+** varint nDoclist;            (length of term's associated doclist)
+** char pDoclist[nDoclist];    (content of doclist)
+** array {
+**                             (further terms are delta-encoded)
+**   varint nPrefix;           (length of prefix shared with previous term)
+**   varint nSuffix;           (length of unshared suffix)
+**   char pTermSuffix[nSuffix];(unshared suffix of next term)
+**   varint nDoclist;          (length of term's associated doclist)
+**   char pDoclist[nDoclist];  (content of doclist)
+** }
+**
+** Here, array { X } means zero or more occurrences of X, adjacent in
+** memory.
+**
+** Leaf nodes are broken into blocks which are stored contiguously in
+** the %_segments table in sorted order.  This means that when the end
+** of a node is reached, the next term is in the node with the next
+** greater node id.
+**
+** New data is spilled to a new leaf node when the current node
+** exceeds LEAF_MAX bytes (default 2048).  New data which itself is
+** larger than STANDALONE_MIN (default 1024) is placed in a standalone
+** node (a leaf node with a single term and doclist).  The goal of
+** these settings is to pack together groups of small doclists while
+** making it efficient to directly access large doclists.  The
+** assumption is that large doclists represent terms which are more
+** likely to be query targets.
+**
+** TODO(shess) It may be useful for blocking decisions to be more
+** dynamic.  For instance, it may make more sense to have a 2.5k leaf
+** node rather than splitting into 2k and .5k nodes.  My intuition is
+** that this might extend through 2x or 4x the pagesize.
+**
+**
+**** Segment interior nodes ****
+** Segment interior nodes store blockids for subtree nodes and terms
+** to describe what data is stored by the each subtree.  Interior
+** nodes are written using InteriorWriter, and read using
+** InteriorReader.  InteriorWriters are created as needed when
+** SegmentWriter creates new leaf nodes, or when an interior node
+** itself grows too big and must be split.  The format of interior
+** nodes:
+**
+** varint iHeight;           (height from leaf level, always >0)
+** varint iBlockid;          (block id of node's leftmost subtree)
+** optional {
+**   varint nTerm;           (length of first term)
+**   char pTerm[nTerm];      (content of first term)
+**   array {
+**                                (further terms are delta-encoded)
+**     varint nPrefix;            (length of shared prefix with previous term)
+**     varint nSuffix;            (length of unshared suffix)
+**     char pTermSuffix[nSuffix]; (unshared suffix of next term)
+**   }
+** }
+**
+** Here, optional { X } means an optional element, while array { X }
+** means zero or more occurrences of X, adjacent in memory.
+**
+** An interior node encodes n terms separating n+1 subtrees.  The
+** subtree blocks are contiguous, so only the first subtree's blockid
+** is encoded.  The subtree at iBlockid will contain all terms less
+** than the first term encoded (or all terms if no term is encoded).
+** Otherwise, for terms greater than or equal to pTerm[i] but less
+** than pTerm[i+1], the subtree for that term will be rooted at
+** iBlockid+i.  Interior nodes only store enough term data to
+** distinguish adjacent children (if the rightmost term of the left
+** child is "something", and the leftmost term of the right child is
+** "wicked", only "w" is stored).
+**
+** New data is spilled to a new interior node at the same height when
+** the current node exceeds INTERIOR_MAX bytes (default 2048).
+** INTERIOR_MIN_TERMS (default 7) keeps large terms from monopolizing
+** interior nodes and making the tree too skinny.  The interior nodes
+** at a given height are naturally tracked by interior nodes at
+** height+1, and so on.
+**
+**
+**** Segment directory ****
+** The segment directory in table %_segdir stores meta-information for
+** merging and deleting segments, and also the root node of the
+** segment's tree.
+**
+** The root node is the top node of the segment's tree after encoding
+** the entire segment, restricted to ROOT_MAX bytes (default 1024).
+** This could be either a leaf node or an interior node.  If the top
+** node requires more than ROOT_MAX bytes, it is flushed to %_segments
+** and a new root interior node is generated (which should always fit
+** within ROOT_MAX because it only needs space for 2 varints, the
+** height and the blockid of the previous root).
+**
+** The meta-information in the segment directory is:
+**   level               - segment level (see below)
+**   idx                 - index within level
+**                       - (level,idx uniquely identify a segment)
+**   start_block         - first leaf node
+**   leaves_end_block    - last leaf node
+**   end_block           - last block (including interior nodes)
+**   root                - contents of root node
+**
+** If the root node is a leaf node, then start_block,
+** leaves_end_block, and end_block are all 0.
+**
+**
+**** Segment merging ****
+** To amortize update costs, segments are grouped into levels and
+** merged in batches.  Each increase in level represents exponentially
+** more documents.
+**
+** New documents (actually, document updates) are tokenized and
+** written individually (using LeafWriter) to a level 0 segment, with
+** incrementing idx.  When idx reaches MERGE_COUNT (default 16), all
+** level 0 segments are merged into a single level 1 segment.  Level 1
+** is populated like level 0, and eventually MERGE_COUNT level 1
+** segments are merged to a single level 2 segment (representing
+** MERGE_COUNT^2 updates), and so on.
+**
+** A segment merge traverses all segments at a given level in
+** parallel, performing a straightforward sorted merge.  Since segment
+** leaf nodes are written in to the %_segments table in order, this
+** merge traverses the underlying sqlite disk structures efficiently.
+** After the merge, all segment blocks from the merged level are
+** deleted.
+**
+** MERGE_COUNT controls how often we merge segments.  16 seems to be
+** somewhat of a sweet spot for insertion performance.  32 and 64 show
+** very similar performance numbers to 16 on insertion, though they're
+** a tiny bit slower (perhaps due to more overhead in merge-time
+** sorting).  8 is about 20% slower than 16, 4 about 50% slower than
+** 16, 2 about 66% slower than 16.
+**
+** At query time, high MERGE_COUNT increases the number of segments
+** which need to be scanned and merged.  For instance, with 100k docs
+** inserted:
+**
+**    MERGE_COUNT   segments
+**       16           25
+**        8           12
+**        4           10
+**        2            6
+**
+** This appears to have only a moderate impact on queries for very
+** frequent terms (which are somewhat dominated by segment merge
+** costs), and infrequent and non-existent terms still seem to be fast
+** even with many segments.
+**
+** TODO(shess) That said, it would be nice to have a better query-side
+** argument for MERGE_COUNT of 16.  Also, it is possible/likely that
+** optimizations to things like doclist merging will swing the sweet
+** spot around.
+**
+**
+**
+**** Handling of deletions and updates ****
+** Since we're using a segmented structure, with no docid-oriented
+** index into the term index, we clearly cannot simply update the term
+** index when a document is deleted or updated.  For deletions, we
+** write an empty doclist (varint(docid) varint(POS_END)), for updates
+** we simply write the new doclist.  Segment merges overwrite older
+** data for a particular docid with newer data, so deletes or updates
+** will eventually overtake the earlier data and knock it out.  The
+** query logic likewise merges doclists so that newer data knocks out
+** older data.
+*/
+
+#include "fts3Int.h"
+#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3)
+
+#if defined(SQLITE_ENABLE_FTS3) && !defined(SQLITE_CORE)
+# define SQLITE_CORE 1
+#endif
+
+#include <assert.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdarg.h>
+
+#include "fts3.h"
+#ifndef SQLITE_CORE 
+# include "sqlite3ext.h"
+  SQLITE_EXTENSION_INIT1
+#endif
+
+typedef struct Fts3HashWrapper Fts3HashWrapper;
+struct Fts3HashWrapper {
+  Fts3Hash hash;                  /* Hash table */
+  int nRef;                       /* Number of pointers to this object */
+};
+
+static int fts3EvalNext(Fts3Cursor *pCsr);
+static int fts3EvalStart(Fts3Cursor *pCsr);
+static int fts3TermSegReaderCursor(
+    Fts3Cursor *, const char *, int, int, Fts3MultiSegReader **);
+
+/*
+** This variable is set to false when running tests for which the on disk
+** structures should not be corrupt. Otherwise, true. If it is false, extra
+** assert() conditions in the fts3 code are activated - conditions that are
+** only true if it is guaranteed that the fts3 database is not corrupt.
+*/
+#ifdef SQLITE_DEBUG
+int sqlite3_fts3_may_be_corrupt = 1;
+#endif
+
+/* 
+** Write a 64-bit variable-length integer to memory starting at p[0].
+** The length of data written will be between 1 and FTS3_VARINT_MAX bytes.
+** The number of bytes written is returned.
+*/
+int sqlite3Fts3PutVarint(char *p, sqlite_int64 v){
+  unsigned char *q = (unsigned char *) p;
+  sqlite_uint64 vu = v;
+  do{
+    *q++ = (unsigned char) ((vu & 0x7f) | 0x80);
+    vu >>= 7;
+  }while( vu!=0 );
+  q[-1] &= 0x7f;  /* turn off high bit in final byte */
+  assert( q - (unsigned char *)p <= FTS3_VARINT_MAX );
+  return (int) (q - (unsigned char *)p);
+}
+
+#define GETVARINT_STEP(v, ptr, shift, mask1, mask2, var, ret) \
+  v = (v & mask1) | ( (*(const unsigned char*)(ptr++)) << shift );  \
+  if( (v & mask2)==0 ){ var = v; return ret; }
+#define GETVARINT_INIT(v, ptr, shift, mask1, mask2, var, ret) \
+  v = (*ptr++);                                               \
+  if( (v & mask2)==0 ){ var = v; return ret; }
+
+int sqlite3Fts3GetVarintU(const char *pBuf, sqlite_uint64 *v){
+  const unsigned char *p = (const unsigned char*)pBuf;
+  const unsigned char *pStart = p;
+  u32 a;
+  u64 b;
+  int shift;
+
+  GETVARINT_INIT(a, p, 0,  0x00,     0x80, *v, 1);
+  GETVARINT_STEP(a, p, 7,  0x7F,     0x4000, *v, 2);
+  GETVARINT_STEP(a, p, 14, 0x3FFF,   0x200000, *v, 3);
+  GETVARINT_STEP(a, p, 21, 0x1FFFFF, 0x10000000, *v, 4);
+  b = (a & 0x0FFFFFFF );
+
+  for(shift=28; shift<=63; shift+=7){
+    u64 c = *p++;
+    b += (c&0x7F) << shift;
+    if( (c & 0x80)==0 ) break;
+  }
+  *v = b;
+  return (int)(p - pStart);
+}
+
+/* 
+** Read a 64-bit variable-length integer from memory starting at p[0].
+** Return the number of bytes read, or 0 on error.
+** The value is stored in *v.
+*/
+int sqlite3Fts3GetVarint(const char *pBuf, sqlite_int64 *v){
+  return sqlite3Fts3GetVarintU(pBuf, (sqlite3_uint64*)v);
+}
+
+/* 
+** Read a 64-bit variable-length integer from memory starting at p[0] and
+** not extending past pEnd[-1].
+** Return the number of bytes read, or 0 on error.
+** The value is stored in *v.
+*/
+int sqlite3Fts3GetVarintBounded(
+  const char *pBuf,
+  const char *pEnd,
+  sqlite_int64 *v
+){
+  const unsigned char *p = (const unsigned char*)pBuf;
+  const unsigned char *pStart = p;
+  const unsigned char *pX = (const unsigned char*)pEnd;
+  u64 b = 0;
+  int shift;
+  for(shift=0; shift<=63; shift+=7){
+    u64 c = p<pX ? *p : 0;
+    p++;
+    b += (c&0x7F) << shift;
+    if( (c & 0x80)==0 ) break;
+  }
+  *v = b;
+  return (int)(p - pStart);
+}
+
+/*
+** Similar to sqlite3Fts3GetVarint(), except that the output is truncated to 
+** a non-negative 32-bit integer before it is returned.
+*/
+int sqlite3Fts3GetVarint32(const char *p, int *pi){
+  const unsigned char *ptr = (const unsigned char*)p;
+  u32 a;
+
+#ifndef fts3GetVarint32
+  GETVARINT_INIT(a, ptr, 0,  0x00,     0x80, *pi, 1);
+#else
+  a = (*ptr++);
+  assert( a & 0x80 );
+#endif
+
+  GETVARINT_STEP(a, ptr, 7,  0x7F,     0x4000, *pi, 2);
+  GETVARINT_STEP(a, ptr, 14, 0x3FFF,   0x200000, *pi, 3);
+  GETVARINT_STEP(a, ptr, 21, 0x1FFFFF, 0x10000000, *pi, 4);
+  a = (a & 0x0FFFFFFF );
+  *pi = (int)(a | ((u32)(*ptr & 0x07) << 28));
+  assert( 0==(a & 0x80000000) );
+  assert( *pi>=0 );
+  return 5;
+}
+
+/*
+** Return the number of bytes required to encode v as a varint
+*/
+int sqlite3Fts3VarintLen(sqlite3_uint64 v){
+  int i = 0;
+  do{
+    i++;
+    v >>= 7;
+  }while( v!=0 );
+  return i;
+}
+
+/*
+** Convert an SQL-style quoted string into a normal string by removing
+** the quote characters.  The conversion is done in-place.  If the
+** input does not begin with a quote character, then this routine
+** is a no-op.
+**
+** Examples:
+**
+**     "abc"   becomes   abc
+**     'xyz'   becomes   xyz
+**     [pqr]   becomes   pqr
+**     `mno`   becomes   mno
+**
+*/
+void sqlite3Fts3Dequote(char *z){
+  char quote;                     /* Quote character (if any ) */
+
+  quote = z[0];
+  if( quote=='[' || quote=='\'' || quote=='"' || quote=='`' ){
+    int iIn = 1;                  /* Index of next byte to read from input */
+    int iOut = 0;                 /* Index of next byte to write to output */
+
+    /* If the first byte was a '[', then the close-quote character is a ']' */
+    if( quote=='[' ) quote = ']';  
+
+    while( z[iIn] ){
+      if( z[iIn]==quote ){
+        if( z[iIn+1]!=quote ) break;
+        z[iOut++] = quote;
+        iIn += 2;
+      }else{
+        z[iOut++] = z[iIn++];
+      }
+    }
+    z[iOut] = '\0';
+  }
+}
+
+/*
+** Read a single varint from the doclist at *pp and advance *pp to point
+** to the first byte past the end of the varint.  Add the value of the varint
+** to *pVal.
+*/
+static void fts3GetDeltaVarint(char **pp, sqlite3_int64 *pVal){
+  sqlite3_int64 iVal;
+  *pp += sqlite3Fts3GetVarint(*pp, &iVal);
+  *pVal += iVal;
+}
+
+/*
+** When this function is called, *pp points to the first byte following a
+** varint that is part of a doclist (or position-list, or any other list
+** of varints). This function moves *pp to point to the start of that varint,
+** and sets *pVal by the varint value.
+**
+** Argument pStart points to the first byte of the doclist that the
+** varint is part of.
+*/
+static void fts3GetReverseVarint(
+  char **pp, 
+  char *pStart, 
+  sqlite3_int64 *pVal
+){
+  sqlite3_int64 iVal;
+  char *p;
+
+  /* Pointer p now points at the first byte past the varint we are 
+  ** interested in. So, unless the doclist is corrupt, the 0x80 bit is
+  ** clear on character p[-1]. */
+  for(p = (*pp)-2; p>=pStart && *p&0x80; p--);
+  p++;
+  *pp = p;
+
+  sqlite3Fts3GetVarint(p, &iVal);
+  *pVal = iVal;
+}
+
+/*
+** The xDisconnect() virtual table method.
+*/
+static int fts3DisconnectMethod(sqlite3_vtab *pVtab){
+  Fts3Table *p = (Fts3Table *)pVtab;
+  int i;
+
+  assert( p->nPendingData==0 );
+  assert( p->pSegments==0 );
+
+  /* Free any prepared statements held */
+  sqlite3_finalize(p->pSeekStmt);
+  for(i=0; i<SizeofArray(p->aStmt); i++){
+    sqlite3_finalize(p->aStmt[i]);
+  }
+  sqlite3_free(p->zSegmentsTbl);
+  sqlite3_free(p->zReadExprlist);
+  sqlite3_free(p->zWriteExprlist);
+  sqlite3_free(p->zContentTbl);
+  sqlite3_free(p->zLanguageid);
+
+  /* Invoke the tokenizer destructor to free the tokenizer. */
+  p->pTokenizer->pModule->xDestroy(p->pTokenizer);
+
+  sqlite3_free(p);
+  return SQLITE_OK;
+}
+
+/*
+** Write an error message into *pzErr
+*/
+void sqlite3Fts3ErrMsg(char **pzErr, const char *zFormat, ...){
+  va_list ap;
+  sqlite3_free(*pzErr);
+  va_start(ap, zFormat);
+  *pzErr = sqlite3_vmprintf(zFormat, ap);
+  va_end(ap);
+}
+
+/*
+** Construct one or more SQL statements from the format string given
+** and then evaluate those statements. The success code is written
+** into *pRc.
+**
+** If *pRc is initially non-zero then this routine is a no-op.
+*/
+static void fts3DbExec(
+  int *pRc,              /* Success code */
+  sqlite3 *db,           /* Database in which to run SQL */
+  const char *zFormat,   /* Format string for SQL */
+  ...                    /* Arguments to the format string */
+){
+  va_list ap;
+  char *zSql;
+  if( *pRc ) return;
+  va_start(ap, zFormat);
+  zSql = sqlite3_vmprintf(zFormat, ap);
+  va_end(ap);
+  if( zSql==0 ){
+    *pRc = SQLITE_NOMEM;
+  }else{
+    *pRc = sqlite3_exec(db, zSql, 0, 0, 0);
+    sqlite3_free(zSql);
+  }
+}
+
+/*
+** The xDestroy() virtual table method.
+*/
+static int fts3DestroyMethod(sqlite3_vtab *pVtab){
+  Fts3Table *p = (Fts3Table *)pVtab;
+  int rc = SQLITE_OK;              /* Return code */
+  const char *zDb = p->zDb;        /* Name of database (e.g. "main", "temp") */
+  sqlite3 *db = p->db;             /* Database handle */
+
+  /* Drop the shadow tables */
+  fts3DbExec(&rc, db, 
+    "DROP TABLE IF EXISTS %Q.'%q_segments';"
+    "DROP TABLE IF EXISTS %Q.'%q_segdir';"
+    "DROP TABLE IF EXISTS %Q.'%q_docsize';"
+    "DROP TABLE IF EXISTS %Q.'%q_stat';"
+    "%s DROP TABLE IF EXISTS %Q.'%q_content';",
+    zDb, p->zName,
+    zDb, p->zName,
+    zDb, p->zName,
+    zDb, p->zName,
+    (p->zContentTbl ? "--" : ""), zDb,p->zName
+  );
+
+  /* If everything has worked, invoke fts3DisconnectMethod() to free the
+  ** memory associated with the Fts3Table structure and return SQLITE_OK.
+  ** Otherwise, return an SQLite error code.
+  */
+  return (rc==SQLITE_OK ? fts3DisconnectMethod(pVtab) : rc);
+}
+
+
+/*
+** Invoke sqlite3_declare_vtab() to declare the schema for the FTS3 table
+** passed as the first argument. This is done as part of the xConnect()
+** and xCreate() methods.
+**
+** If *pRc is non-zero when this function is called, it is a no-op. 
+** Otherwise, if an error occurs, an SQLite error code is stored in *pRc
+** before returning.
+*/
+static void fts3DeclareVtab(int *pRc, Fts3Table *p){
+  if( *pRc==SQLITE_OK ){
+    int i;                        /* Iterator variable */
+    int rc;                       /* Return code */
+    char *zSql;                   /* SQL statement passed to declare_vtab() */
+    char *zCols;                  /* List of user defined columns */
+    const char *zLanguageid;
+
+    zLanguageid = (p->zLanguageid ? p->zLanguageid : "__langid");
+    sqlite3_vtab_config(p->db, SQLITE_VTAB_CONSTRAINT_SUPPORT, 1);
+    sqlite3_vtab_config(p->db, SQLITE_VTAB_INNOCUOUS);
+
+    /* Create a list of user columns for the virtual table */
+    zCols = sqlite3_mprintf("%Q, ", p->azColumn[0]);
+    for(i=1; zCols && i<p->nColumn; i++){
+      zCols = sqlite3_mprintf("%z%Q, ", zCols, p->azColumn[i]);
+    }
+
+    /* Create the whole "CREATE TABLE" statement to pass to SQLite */
+    zSql = sqlite3_mprintf(
+        "CREATE TABLE x(%s %Q HIDDEN, docid HIDDEN, %Q HIDDEN)", 
+        zCols, p->zName, zLanguageid
+    );
+    if( !zCols || !zSql ){
+      rc = SQLITE_NOMEM;
+    }else{
+      rc = sqlite3_declare_vtab(p->db, zSql);
+    }
+
+    sqlite3_free(zSql);
+    sqlite3_free(zCols);
+    *pRc = rc;
+  }
+}
+
+/*
+** Create the %_stat table if it does not already exist.
+*/
+void sqlite3Fts3CreateStatTable(int *pRc, Fts3Table *p){
+  fts3DbExec(pRc, p->db, 
+      "CREATE TABLE IF NOT EXISTS %Q.'%q_stat'"
+          "(id INTEGER PRIMARY KEY, value BLOB);",
+      p->zDb, p->zName
+  );
+  if( (*pRc)==SQLITE_OK ) p->bHasStat = 1;
+}
+
+/*
+** Create the backing store tables (%_content, %_segments and %_segdir)
+** required by the FTS3 table passed as the only argument. This is done
+** as part of the vtab xCreate() method.
+**
+** If the p->bHasDocsize boolean is true (indicating that this is an
+** FTS4 table, not an FTS3 table) then also create the %_docsize and
+** %_stat tables required by FTS4.
+*/
+static int fts3CreateTables(Fts3Table *p){
+  int rc = SQLITE_OK;             /* Return code */
+  int i;                          /* Iterator variable */
+  sqlite3 *db = p->db;            /* The database connection */
+
+  if( p->zContentTbl==0 ){
+    const char *zLanguageid = p->zLanguageid;
+    char *zContentCols;           /* Columns of %_content table */
+
+    /* Create a list of user columns for the content table */
+    zContentCols = sqlite3_mprintf("docid INTEGER PRIMARY KEY");
+    for(i=0; zContentCols && i<p->nColumn; i++){
+      char *z = p->azColumn[i];
+      zContentCols = sqlite3_mprintf("%z, 'c%d%q'", zContentCols, i, z);
+    }
+    if( zLanguageid && zContentCols ){
+      zContentCols = sqlite3_mprintf("%z, langid", zContentCols, zLanguageid);
+    }
+    if( zContentCols==0 ) rc = SQLITE_NOMEM;
+  
+    /* Create the content table */
+    fts3DbExec(&rc, db, 
+       "CREATE TABLE %Q.'%q_content'(%s)",
+       p->zDb, p->zName, zContentCols
+    );
+    sqlite3_free(zContentCols);
+  }
+
+  /* Create other tables */
+  fts3DbExec(&rc, db, 
+      "CREATE TABLE %Q.'%q_segments'(blockid INTEGER PRIMARY KEY, block BLOB);",
+      p->zDb, p->zName
+  );
+  fts3DbExec(&rc, db, 
+      "CREATE TABLE %Q.'%q_segdir'("
+        "level INTEGER,"
+        "idx INTEGER,"
+        "start_block INTEGER,"
+        "leaves_end_block INTEGER,"
+        "end_block INTEGER,"
+        "root BLOB,"
+        "PRIMARY KEY(level, idx)"
+      ");",
+      p->zDb, p->zName
+  );
+  if( p->bHasDocsize ){
+    fts3DbExec(&rc, db, 
+        "CREATE TABLE %Q.'%q_docsize'(docid INTEGER PRIMARY KEY, size BLOB);",
+        p->zDb, p->zName
+    );
+  }
+  assert( p->bHasStat==p->bFts4 );
+  if( p->bHasStat ){
+    sqlite3Fts3CreateStatTable(&rc, p);
+  }
+  return rc;
+}
+
+/*
+** Store the current database page-size in bytes in p->nPgsz.
+**
+** If *pRc is non-zero when this function is called, it is a no-op. 
+** Otherwise, if an error occurs, an SQLite error code is stored in *pRc
+** before returning.
+*/
+static void fts3DatabasePageSize(int *pRc, Fts3Table *p){
+  if( *pRc==SQLITE_OK ){
+    int rc;                       /* Return code */
+    char *zSql;                   /* SQL text "PRAGMA %Q.page_size" */
+    sqlite3_stmt *pStmt;          /* Compiled "PRAGMA %Q.page_size" statement */
+  
+    zSql = sqlite3_mprintf("PRAGMA %Q.page_size", p->zDb);
+    if( !zSql ){
+      rc = SQLITE_NOMEM;
+    }else{
+      rc = sqlite3_prepare(p->db, zSql, -1, &pStmt, 0);
+      if( rc==SQLITE_OK ){
+        sqlite3_step(pStmt);
+        p->nPgsz = sqlite3_column_int(pStmt, 0);
+        rc = sqlite3_finalize(pStmt);
+      }else if( rc==SQLITE_AUTH ){
+        p->nPgsz = 1024;
+        rc = SQLITE_OK;
+      }
+    }
+    assert( p->nPgsz>0 || rc!=SQLITE_OK );
+    sqlite3_free(zSql);
+    *pRc = rc;
+  }
+}
+
+/*
+** "Special" FTS4 arguments are column specifications of the following form:
+**
+**   <key> = <value>
+**
+** There may not be whitespace surrounding the "=" character. The <value> 
+** term may be quoted, but the <key> may not.
+*/
+static int fts3IsSpecialColumn(
+  const char *z, 
+  int *pnKey,
+  char **pzValue
+){
+  char *zValue;
+  const char *zCsr = z;
+
+  while( *zCsr!='=' ){
+    if( *zCsr=='\0' ) return 0;
+    zCsr++;
+  }
+
+  *pnKey = (int)(zCsr-z);
+  zValue = sqlite3_mprintf("%s", &zCsr[1]);
+  if( zValue ){
+    sqlite3Fts3Dequote(zValue);
+  }
+  *pzValue = zValue;
+  return 1;
+}
+
+/*
+** Append the output of a printf() style formatting to an existing string.
+*/
+static void fts3Appendf(
+  int *pRc,                       /* IN/OUT: Error code */
+  char **pz,                      /* IN/OUT: Pointer to string buffer */
+  const char *zFormat,            /* Printf format string to append */
+  ...                             /* Arguments for printf format string */
+){
+  if( *pRc==SQLITE_OK ){
+    va_list ap;
+    char *z;
+    va_start(ap, zFormat);
+    z = sqlite3_vmprintf(zFormat, ap);
+    va_end(ap);
+    if( z && *pz ){
+      char *z2 = sqlite3_mprintf("%s%s", *pz, z);
+      sqlite3_free(z);
+      z = z2;
+    }
+    if( z==0 ) *pRc = SQLITE_NOMEM;
+    sqlite3_free(*pz);
+    *pz = z;
+  }
+}
+
+/*
+** Return a copy of input string zInput enclosed in double-quotes (") and
+** with all double quote characters escaped. For example:
+**
+**     fts3QuoteId("un \"zip\"")   ->    "un \"\"zip\"\""
+**
+** The pointer returned points to memory obtained from sqlite3_malloc(). It
+** is the callers responsibility to call sqlite3_free() to release this
+** memory.
+*/
+static char *fts3QuoteId(char const *zInput){
+  sqlite3_int64 nRet;
+  char *zRet;
+  nRet = 2 + (int)strlen(zInput)*2 + 1;
+  zRet = sqlite3_malloc64(nRet);
+  if( zRet ){
+    int i;
+    char *z = zRet;
+    *(z++) = '"';
+    for(i=0; zInput[i]; i++){
+      if( zInput[i]=='"' ) *(z++) = '"';
+      *(z++) = zInput[i];
+    }
+    *(z++) = '"';
+    *(z++) = '\0';
+  }
+  return zRet;
+}
+
+/*
+** Return a list of comma separated SQL expressions and a FROM clause that 
+** could be used in a SELECT statement such as the following:
+**
+**     SELECT <list of expressions> FROM %_content AS x ...
+**
+** to return the docid, followed by each column of text data in order
+** from left to write. If parameter zFunc is not NULL, then instead of
+** being returned directly each column of text data is passed to an SQL
+** function named zFunc first. For example, if zFunc is "unzip" and the
+** table has the three user-defined columns "a", "b", and "c", the following
+** string is returned:
+**
+**     "docid, unzip(x.'a'), unzip(x.'b'), unzip(x.'c') FROM %_content AS x"
+**
+** The pointer returned points to a buffer allocated by sqlite3_malloc(). It
+** is the responsibility of the caller to eventually free it.
+**
+** If *pRc is not SQLITE_OK when this function is called, it is a no-op (and
+** a NULL pointer is returned). Otherwise, if an OOM error is encountered
+** by this function, NULL is returned and *pRc is set to SQLITE_NOMEM. If
+** no error occurs, *pRc is left unmodified.
+*/
+static char *fts3ReadExprList(Fts3Table *p, const char *zFunc, int *pRc){
+  char *zRet = 0;
+  char *zFree = 0;
+  char *zFunction;
+  int i;
+
+  if( p->zContentTbl==0 ){
+    if( !zFunc ){
+      zFunction = "";
+    }else{
+      zFree = zFunction = fts3QuoteId(zFunc);
+    }
+    fts3Appendf(pRc, &zRet, "docid");
+    for(i=0; i<p->nColumn; i++){
+      fts3Appendf(pRc, &zRet, ",%s(x.'c%d%q')", zFunction, i, p->azColumn[i]);
+    }
+    if( p->zLanguageid ){
+      fts3Appendf(pRc, &zRet, ", x.%Q", "langid");
+    }
+    sqlite3_free(zFree);
+  }else{
+    fts3Appendf(pRc, &zRet, "rowid");
+    for(i=0; i<p->nColumn; i++){
+      fts3Appendf(pRc, &zRet, ", x.'%q'", p->azColumn[i]);
+    }
+    if( p->zLanguageid ){
+      fts3Appendf(pRc, &zRet, ", x.%Q", p->zLanguageid);
+    }
+  }
+  fts3Appendf(pRc, &zRet, " FROM '%q'.'%q%s' AS x", 
+      p->zDb,
+      (p->zContentTbl ? p->zContentTbl : p->zName),
+      (p->zContentTbl ? "" : "_content")
+  );
+  return zRet;
+}
+
+/*
+** Return a list of N comma separated question marks, where N is the number
+** of columns in the %_content table (one for the docid plus one for each
+** user-defined text column).
+**
+** If argument zFunc is not NULL, then all but the first question mark
+** is preceded by zFunc and an open bracket, and followed by a closed
+** bracket. For example, if zFunc is "zip" and the FTS3 table has three 
+** user-defined text columns, the following string is returned:
+**
+**     "?, zip(?), zip(?), zip(?)"
+**
+** The pointer returned points to a buffer allocated by sqlite3_malloc(). It
+** is the responsibility of the caller to eventually free it.
+**
+** If *pRc is not SQLITE_OK when this function is called, it is a no-op (and
+** a NULL pointer is returned). Otherwise, if an OOM error is encountered
+** by this function, NULL is returned and *pRc is set to SQLITE_NOMEM. If
+** no error occurs, *pRc is left unmodified.
+*/
+static char *fts3WriteExprList(Fts3Table *p, const char *zFunc, int *pRc){
+  char *zRet = 0;
+  char *zFree = 0;
+  char *zFunction;
+  int i;
+
+  if( !zFunc ){
+    zFunction = "";
+  }else{
+    zFree = zFunction = fts3QuoteId(zFunc);
+  }
+  fts3Appendf(pRc, &zRet, "?");
+  for(i=0; i<p->nColumn; i++){
+    fts3Appendf(pRc, &zRet, ",%s(?)", zFunction);
+  }
+  if( p->zLanguageid ){
+    fts3Appendf(pRc, &zRet, ", ?");
+  }
+  sqlite3_free(zFree);
+  return zRet;
+}
+
+/*
+** Buffer z contains a positive integer value encoded as utf-8 text.
+** Decode this value and store it in *pnOut, returning the number of bytes
+** consumed. If an overflow error occurs return a negative value.
+*/
+int sqlite3Fts3ReadInt(const char *z, int *pnOut){
+  u64 iVal = 0;
+  int i;
+  for(i=0; z[i]>='0' && z[i]<='9'; i++){
+    iVal = iVal*10 + (z[i] - '0');
+    if( iVal>0x7FFFFFFF ) return -1;
+  }
+  *pnOut = (int)iVal;
+  return i;
+}
+
+/*
+** This function interprets the string at (*pp) as a non-negative integer
+** value. It reads the integer and sets *pnOut to the value read, then 
+** sets *pp to point to the byte immediately following the last byte of
+** the integer value.
+**
+** Only decimal digits ('0'..'9') may be part of an integer value. 
+**
+** If *pp does not being with a decimal digit SQLITE_ERROR is returned and
+** the output value undefined. Otherwise SQLITE_OK is returned.
+**
+** This function is used when parsing the "prefix=" FTS4 parameter.
+*/
+static int fts3GobbleInt(const char **pp, int *pnOut){
+  const int MAX_NPREFIX = 10000000;
+  int nInt = 0;                   /* Output value */
+  int nByte;
+  nByte = sqlite3Fts3ReadInt(*pp, &nInt);
+  if( nInt>MAX_NPREFIX ){
+    nInt = 0;
+  }
+  if( nByte==0 ){
+    return SQLITE_ERROR;
+  }
+  *pnOut = nInt;
+  *pp += nByte;
+  return SQLITE_OK;
+}
+
+/*
+** This function is called to allocate an array of Fts3Index structures
+** representing the indexes maintained by the current FTS table. FTS tables
+** always maintain the main "terms" index, but may also maintain one or
+** more "prefix" indexes, depending on the value of the "prefix=" parameter
+** (if any) specified as part of the CREATE VIRTUAL TABLE statement.
+**
+** Argument zParam is passed the value of the "prefix=" option if one was
+** specified, or NULL otherwise.
+**
+** If no error occurs, SQLITE_OK is returned and *apIndex set to point to
+** the allocated array. *pnIndex is set to the number of elements in the
+** array. If an error does occur, an SQLite error code is returned.
+**
+** Regardless of whether or not an error is returned, it is the responsibility
+** of the caller to call sqlite3_free() on the output array to free it.
+*/
+static int fts3PrefixParameter(
+  const char *zParam,             /* ABC in prefix=ABC parameter to parse */
+  int *pnIndex,                   /* OUT: size of *apIndex[] array */
+  struct Fts3Index **apIndex      /* OUT: Array of indexes for this table */
+){
+  struct Fts3Index *aIndex;       /* Allocated array */
+  int nIndex = 1;                 /* Number of entries in array */
+
+  if( zParam && zParam[0] ){
+    const char *p;
+    nIndex++;
+    for(p=zParam; *p; p++){
+      if( *p==',' ) nIndex++;
+    }
+  }
+
+  aIndex = sqlite3_malloc64(sizeof(struct Fts3Index) * nIndex);
+  *apIndex = aIndex;
+  if( !aIndex ){
+    return SQLITE_NOMEM;
+  }
+
+  memset(aIndex, 0, sizeof(struct Fts3Index) * nIndex);
+  if( zParam ){
+    const char *p = zParam;
+    int i;
+    for(i=1; i<nIndex; i++){
+      int nPrefix = 0;
+      if( fts3GobbleInt(&p, &nPrefix) ) return SQLITE_ERROR;
+      assert( nPrefix>=0 );
+      if( nPrefix==0 ){
+        nIndex--;
+        i--;
+      }else{
+        aIndex[i].nPrefix = nPrefix;
+      }
+      p++;
+    }
+  }
+
+  *pnIndex = nIndex;
+  return SQLITE_OK;
+}
+
+/*
+** This function is called when initializing an FTS4 table that uses the
+** content=xxx option. It determines the number of and names of the columns
+** of the new FTS4 table.
+**
+** The third argument passed to this function is the value passed to the
+** config=xxx option (i.e. "xxx"). This function queries the database for
+** a table of that name. If found, the output variables are populated
+** as follows:
+**
+**   *pnCol:   Set to the number of columns table xxx has,
+**
+**   *pnStr:   Set to the total amount of space required to store a copy
+**             of each columns name, including the nul-terminator.
+**
+**   *pazCol:  Set to point to an array of *pnCol strings. Each string is
+**             the name of the corresponding column in table xxx. The array
+**             and its contents are allocated using a single allocation. It
+**             is the responsibility of the caller to free this allocation
+**             by eventually passing the *pazCol value to sqlite3_free().
+**
+** If the table cannot be found, an error code is returned and the output
+** variables are undefined. Or, if an OOM is encountered, SQLITE_NOMEM is
+** returned (and the output variables are undefined).
+*/
+static int fts3ContentColumns(
+  sqlite3 *db,                    /* Database handle */
+  const char *zDb,                /* Name of db (i.e. "main", "temp" etc.) */
+  const char *zTbl,               /* Name of content table */
+  const char ***pazCol,           /* OUT: Malloc'd array of column names */
+  int *pnCol,                     /* OUT: Size of array *pazCol */
+  int *pnStr,                     /* OUT: Bytes of string content */
+  char **pzErr                    /* OUT: error message */
+){
+  int rc = SQLITE_OK;             /* Return code */
+  char *zSql;                     /* "SELECT *" statement on zTbl */  
+  sqlite3_stmt *pStmt = 0;        /* Compiled version of zSql */
+
+  zSql = sqlite3_mprintf("SELECT * FROM %Q.%Q", zDb, zTbl);
+  if( !zSql ){
+    rc = SQLITE_NOMEM;
+  }else{
+    rc = sqlite3_prepare(db, zSql, -1, &pStmt, 0);
+    if( rc!=SQLITE_OK ){
+      sqlite3Fts3ErrMsg(pzErr, "%s", sqlite3_errmsg(db));
+    }
+  }
+  sqlite3_free(zSql);
+
+  if( rc==SQLITE_OK ){
+    const char **azCol;           /* Output array */
+    sqlite3_int64 nStr = 0;       /* Size of all column names (incl. 0x00) */
+    int nCol;                     /* Number of table columns */
+    int i;                        /* Used to iterate through columns */
+
+    /* Loop through the returned columns. Set nStr to the number of bytes of
+    ** space required to store a copy of each column name, including the
+    ** nul-terminator byte.  */
+    nCol = sqlite3_column_count(pStmt);
+    for(i=0; i<nCol; i++){
+      const char *zCol = sqlite3_column_name(pStmt, i);
+      nStr += strlen(zCol) + 1;
+    }
+
+    /* Allocate and populate the array to return. */
+    azCol = (const char **)sqlite3_malloc64(sizeof(char *) * nCol + nStr);
+    if( azCol==0 ){
+      rc = SQLITE_NOMEM;
+    }else{
+      char *p = (char *)&azCol[nCol];
+      for(i=0; i<nCol; i++){
+        const char *zCol = sqlite3_column_name(pStmt, i);
+        int n = (int)strlen(zCol)+1;
+        memcpy(p, zCol, n);
+        azCol[i] = p;
+        p += n;
+      }
+    }
+    sqlite3_finalize(pStmt);
+
+    /* Set the output variables. */
+    *pnCol = nCol;
+    *pnStr = nStr;
+    *pazCol = azCol;
+  }
+
+  return rc;
+}
+
+/*
+** This function is the implementation of both the xConnect and xCreate
+** methods of the FTS3 virtual table.
+**
+** The argv[] array contains the following:
+**
+**   argv[0]   -> module name  ("fts3" or "fts4")
+**   argv[1]   -> database name
+**   argv[2]   -> table name
+**   argv[...] -> "column name" and other module argument fields.
+*/
+static int fts3InitVtab(
+  int isCreate,                   /* True for xCreate, false for xConnect */
+  sqlite3 *db,                    /* The SQLite database connection */
+  void *pAux,                     /* Hash table containing tokenizers */
+  int argc,                       /* Number of elements in argv array */
+  const char * const *argv,       /* xCreate/xConnect argument array */
+  sqlite3_vtab **ppVTab,          /* Write the resulting vtab structure here */
+  char **pzErr                    /* Write any error message here */
+){
+  Fts3Hash *pHash = &((Fts3HashWrapper*)pAux)->hash;
+  Fts3Table *p = 0;               /* Pointer to allocated vtab */
+  int rc = SQLITE_OK;             /* Return code */
+  int i;                          /* Iterator variable */
+  sqlite3_int64 nByte;            /* Size of allocation used for *p */
+  int iCol;                       /* Column index */
+  int nString = 0;                /* Bytes required to hold all column names */
+  int nCol = 0;                   /* Number of columns in the FTS table */
+  char *zCsr;                     /* Space for holding column names */
+  int nDb;                        /* Bytes required to hold database name */
+  int nName;                      /* Bytes required to hold table name */
+  int isFts4 = (argv[0][3]=='4'); /* True for FTS4, false for FTS3 */
+  const char **aCol;              /* Array of column names */
+  sqlite3_tokenizer *pTokenizer = 0;        /* Tokenizer for this table */
+
+  int nIndex = 0;                 /* Size of aIndex[] array */
+  struct Fts3Index *aIndex = 0;   /* Array of indexes for this table */
+
+  /* The results of parsing supported FTS4 key=value options: */
+  int bNoDocsize = 0;             /* True to omit %_docsize table */
+  int bDescIdx = 0;               /* True to store descending indexes */
+  char *zPrefix = 0;              /* Prefix parameter value (or NULL) */
+  char *zCompress = 0;            /* compress=? parameter (or NULL) */
+  char *zUncompress = 0;          /* uncompress=? parameter (or NULL) */
+  char *zContent = 0;             /* content=? parameter (or NULL) */
+  char *zLanguageid = 0;          /* languageid=? parameter (or NULL) */
+  char **azNotindexed = 0;        /* The set of notindexed= columns */
+  int nNotindexed = 0;            /* Size of azNotindexed[] array */
+
+  assert( strlen(argv[0])==4 );
+  assert( (sqlite3_strnicmp(argv[0], "fts4", 4)==0 && isFts4)
+       || (sqlite3_strnicmp(argv[0], "fts3", 4)==0 && !isFts4)
+  );
+
+  nDb = (int)strlen(argv[1]) + 1;
+  nName = (int)strlen(argv[2]) + 1;
+
+  nByte = sizeof(const char *) * (argc-2);
+  aCol = (const char **)sqlite3_malloc64(nByte);
+  if( aCol ){
+    memset((void*)aCol, 0, nByte);
+    azNotindexed = (char **)sqlite3_malloc64(nByte);
+  }
+  if( azNotindexed ){
+    memset(azNotindexed, 0, nByte);
+  }
+  if( !aCol || !azNotindexed ){
+    rc = SQLITE_NOMEM;
+    goto fts3_init_out;
+  }
+
+  /* Loop through all of the arguments passed by the user to the FTS3/4
+  ** module (i.e. all the column names and special arguments). This loop
+  ** does the following:
+  **
+  **   + Figures out the number of columns the FTSX table will have, and
+  **     the number of bytes of space that must be allocated to store copies
+  **     of the column names.
+  **
+  **   + If there is a tokenizer specification included in the arguments,
+  **     initializes the tokenizer pTokenizer.
+  */
+  for(i=3; rc==SQLITE_OK && i<argc; i++){
+    char const *z = argv[i];
+    int nKey;
+    char *zVal;
+
+    /* Check if this is a tokenizer specification */
+    if( !pTokenizer 
+     && strlen(z)>8
+     && 0==sqlite3_strnicmp(z, "tokenize", 8) 
+     && 0==sqlite3Fts3IsIdChar(z[8])
+    ){
+      rc = sqlite3Fts3InitTokenizer(pHash, &z[9], &pTokenizer, pzErr);
+    }
+
+    /* Check if it is an FTS4 special argument. */
+    else if( isFts4 && fts3IsSpecialColumn(z, &nKey, &zVal) ){
+      struct Fts4Option {
+        const char *zOpt;
+        int nOpt;
+      } aFts4Opt[] = {
+        { "matchinfo",   9 },     /* 0 -> MATCHINFO */
+        { "prefix",      6 },     /* 1 -> PREFIX */
+        { "compress",    8 },     /* 2 -> COMPRESS */
+        { "uncompress", 10 },     /* 3 -> UNCOMPRESS */
+        { "order",       5 },     /* 4 -> ORDER */
+        { "content",     7 },     /* 5 -> CONTENT */
+        { "languageid", 10 },     /* 6 -> LANGUAGEID */
+        { "notindexed", 10 }      /* 7 -> NOTINDEXED */
+      };
+
+      int iOpt;
+      if( !zVal ){
+        rc = SQLITE_NOMEM;
+      }else{
+        for(iOpt=0; iOpt<SizeofArray(aFts4Opt); iOpt++){
+          struct Fts4Option *pOp = &aFts4Opt[iOpt];
+          if( nKey==pOp->nOpt && !sqlite3_strnicmp(z, pOp->zOpt, pOp->nOpt) ){
+            break;
+          }
+        }
+        switch( iOpt ){
+          case 0:               /* MATCHINFO */
+            if( strlen(zVal)!=4 || sqlite3_strnicmp(zVal, "fts3", 4) ){
+              sqlite3Fts3ErrMsg(pzErr, "unrecognized matchinfo: %s", zVal);
+              rc = SQLITE_ERROR;
+            }
+            bNoDocsize = 1;
+            break;
+
+          case 1:               /* PREFIX */
+            sqlite3_free(zPrefix);
+            zPrefix = zVal;
+            zVal = 0;
+            break;
+
+          case 2:               /* COMPRESS */
+            sqlite3_free(zCompress);
+            zCompress = zVal;
+            zVal = 0;
+            break;
+
+          case 3:               /* UNCOMPRESS */
+            sqlite3_free(zUncompress);
+            zUncompress = zVal;
+            zVal = 0;
+            break;
+
+          case 4:               /* ORDER */
+            if( (strlen(zVal)!=3 || sqlite3_strnicmp(zVal, "asc", 3)) 
+             && (strlen(zVal)!=4 || sqlite3_strnicmp(zVal, "desc", 4)) 
+            ){
+              sqlite3Fts3ErrMsg(pzErr, "unrecognized order: %s", zVal);
+              rc = SQLITE_ERROR;
+            }
+            bDescIdx = (zVal[0]=='d' || zVal[0]=='D');
+            break;
+
+          case 5:              /* CONTENT */
+            sqlite3_free(zContent);
+            zContent = zVal;
+            zVal = 0;
+            break;
+
+          case 6:              /* LANGUAGEID */
+            assert( iOpt==6 );
+            sqlite3_free(zLanguageid);
+            zLanguageid = zVal;
+            zVal = 0;
+            break;
+
+          case 7:              /* NOTINDEXED */
+            azNotindexed[nNotindexed++] = zVal;
+            zVal = 0;
+            break;
+
+          default:
+            assert( iOpt==SizeofArray(aFts4Opt) );
+            sqlite3Fts3ErrMsg(pzErr, "unrecognized parameter: %s", z);
+            rc = SQLITE_ERROR;
+            break;
+        }
+        sqlite3_free(zVal);
+      }
+    }
+
+    /* Otherwise, the argument is a column name. */
+    else {
+      nString += (int)(strlen(z) + 1);
+      aCol[nCol++] = z;
+    }
+  }
+
+  /* If a content=xxx option was specified, the following:
+  **
+  **   1. Ignore any compress= and uncompress= options.
+  **
+  **   2. If no column names were specified as part of the CREATE VIRTUAL
+  **      TABLE statement, use all columns from the content table.
+  */
+  if( rc==SQLITE_OK && zContent ){
+    sqlite3_free(zCompress); 
+    sqlite3_free(zUncompress); 
+    zCompress = 0;
+    zUncompress = 0;
+    if( nCol==0 ){
+      sqlite3_free((void*)aCol); 
+      aCol = 0;
+      rc = fts3ContentColumns(db, argv[1], zContent,&aCol,&nCol,&nString,pzErr);
+
+      /* If a languageid= option was specified, remove the language id
+      ** column from the aCol[] array. */ 
+      if( rc==SQLITE_OK && zLanguageid ){
+        int j;
+        for(j=0; j<nCol; j++){
+          if( sqlite3_stricmp(zLanguageid, aCol[j])==0 ){
+            int k;
+            for(k=j; k<nCol; k++) aCol[k] = aCol[k+1];
+            nCol--;
+            break;
+          }
+        }
+      }
+    }
+  }
+  if( rc!=SQLITE_OK ) goto fts3_init_out;
+
+  if( nCol==0 ){
+    assert( nString==0 );
+    aCol[0] = "content";
+    nString = 8;
+    nCol = 1;
+  }
+
+  if( pTokenizer==0 ){
+    rc = sqlite3Fts3InitTokenizer(pHash, "simple", &pTokenizer, pzErr);
+    if( rc!=SQLITE_OK ) goto fts3_init_out;
+  }
+  assert( pTokenizer );
+
+  rc = fts3PrefixParameter(zPrefix, &nIndex, &aIndex);
+  if( rc==SQLITE_ERROR ){
+    assert( zPrefix );
+    sqlite3Fts3ErrMsg(pzErr, "error parsing prefix parameter: %s", zPrefix);
+  }
+  if( rc!=SQLITE_OK ) goto fts3_init_out;
+
+  /* Allocate and populate the Fts3Table structure. */
+  nByte = sizeof(Fts3Table) +                  /* Fts3Table */
+          nCol * sizeof(char *) +              /* azColumn */
+          nIndex * sizeof(struct Fts3Index) +  /* aIndex */
+          nCol * sizeof(u8) +                  /* abNotindexed */
+          nName +                              /* zName */
+          nDb +                                /* zDb */
+          nString;                             /* Space for azColumn strings */
+  p = (Fts3Table*)sqlite3_malloc64(nByte);
+  if( p==0 ){
+    rc = SQLITE_NOMEM;
+    goto fts3_init_out;
+  }
+  memset(p, 0, nByte);
+  p->db = db;
+  p->nColumn = nCol;
+  p->nPendingData = 0;
+  p->azColumn = (char **)&p[1];
+  p->pTokenizer = pTokenizer;
+  p->nMaxPendingData = FTS3_MAX_PENDING_DATA;
+  p->bHasDocsize = (isFts4 && bNoDocsize==0);
+  p->bHasStat = (u8)isFts4;
+  p->bFts4 = (u8)isFts4;
+  p->bDescIdx = (u8)bDescIdx;
+  p->nAutoincrmerge = 0xff;   /* 0xff means setting unknown */
+  p->zContentTbl = zContent;
+  p->zLanguageid = zLanguageid;
+  zContent = 0;
+  zLanguageid = 0;
+  TESTONLY( p->inTransaction = -1 );
+  TESTONLY( p->mxSavepoint = -1 );
+
+  p->aIndex = (struct Fts3Index *)&p->azColumn[nCol];
+  memcpy(p->aIndex, aIndex, sizeof(struct Fts3Index) * nIndex);
+  p->nIndex = nIndex;
+  for(i=0; i<nIndex; i++){
+    fts3HashInit(&p->aIndex[i].hPending, FTS3_HASH_STRING, 1);
+  }
+  p->abNotindexed = (u8 *)&p->aIndex[nIndex];
+
+  /* Fill in the zName and zDb fields of the vtab structure. */
+  zCsr = (char *)&p->abNotindexed[nCol];
+  p->zName = zCsr;
+  memcpy(zCsr, argv[2], nName);
+  zCsr += nName;
+  p->zDb = zCsr;
+  memcpy(zCsr, argv[1], nDb);
+  zCsr += nDb;
+
+  /* Fill in the azColumn array */
+  for(iCol=0; iCol<nCol; iCol++){
+    char *z; 
+    int n = 0;
+    z = (char *)sqlite3Fts3NextToken(aCol[iCol], &n);
+    if( n>0 ){
+      memcpy(zCsr, z, n);
+    }
+    zCsr[n] = '\0';
+    sqlite3Fts3Dequote(zCsr);
+    p->azColumn[iCol] = zCsr;
+    zCsr += n+1;
+    assert( zCsr <= &((char *)p)[nByte] );
+  }
+
+  /* Fill in the abNotindexed array */
+  for(iCol=0; iCol<nCol; iCol++){
+    int n = (int)strlen(p->azColumn[iCol]);
+    for(i=0; i<nNotindexed; i++){
+      char *zNot = azNotindexed[i];
+      if( zNot && n==(int)strlen(zNot)
+       && 0==sqlite3_strnicmp(p->azColumn[iCol], zNot, n) 
+      ){
+        p->abNotindexed[iCol] = 1;
+        sqlite3_free(zNot);
+        azNotindexed[i] = 0;
+      }
+    }
+  }
+  for(i=0; i<nNotindexed; i++){
+    if( azNotindexed[i] ){
+      sqlite3Fts3ErrMsg(pzErr, "no such column: %s", azNotindexed[i]);
+      rc = SQLITE_ERROR;
+    }
+  }
+
+  if( rc==SQLITE_OK && (zCompress==0)!=(zUncompress==0) ){
+    char const *zMiss = (zCompress==0 ? "compress" : "uncompress");
+    rc = SQLITE_ERROR;
+    sqlite3Fts3ErrMsg(pzErr, "missing %s parameter in fts4 constructor", zMiss);
+  }
+  p->zReadExprlist = fts3ReadExprList(p, zUncompress, &rc);
+  p->zWriteExprlist = fts3WriteExprList(p, zCompress, &rc);
+  if( rc!=SQLITE_OK ) goto fts3_init_out;
+
+  /* If this is an xCreate call, create the underlying tables in the 
+  ** database. TODO: For xConnect(), it could verify that said tables exist.
+  */
+  if( isCreate ){
+    rc = fts3CreateTables(p);
+  }
+
+  /* Check to see if a legacy fts3 table has been "upgraded" by the
+  ** addition of a %_stat table so that it can use incremental merge.
+  */
+  if( !isFts4 && !isCreate ){
+    p->bHasStat = 2;
+  }
+
+  /* Figure out the page-size for the database. This is required in order to
+  ** estimate the cost of loading large doclists from the database.  */
+  fts3DatabasePageSize(&rc, p);
+  p->nNodeSize = p->nPgsz-35;
+
+#if defined(SQLITE_DEBUG)||defined(SQLITE_TEST)
+  p->nMergeCount = FTS3_MERGE_COUNT;
+#endif
+
+  /* Declare the table schema to SQLite. */
+  fts3DeclareVtab(&rc, p);
+
+fts3_init_out:
+  sqlite3_free(zPrefix);
+  sqlite3_free(aIndex);
+  sqlite3_free(zCompress);
+  sqlite3_free(zUncompress);
+  sqlite3_free(zContent);
+  sqlite3_free(zLanguageid);
+  for(i=0; i<nNotindexed; i++) sqlite3_free(azNotindexed[i]);
+  sqlite3_free((void *)aCol);
+  sqlite3_free((void *)azNotindexed);
+  if( rc!=SQLITE_OK ){
+    if( p ){
+      fts3DisconnectMethod((sqlite3_vtab *)p);
+    }else if( pTokenizer ){
+      pTokenizer->pModule->xDestroy(pTokenizer);
+    }
+  }else{
+    assert( p->pSegments==0 );
+    *ppVTab = &p->base;
+  }
+  return rc;
+}
+
+/*
+** The xConnect() and xCreate() methods for the virtual table. All the
+** work is done in function fts3InitVtab().
+*/
+static int fts3ConnectMethod(
+  sqlite3 *db,                    /* Database connection */
+  void *pAux,                     /* Pointer to tokenizer hash table */
+  int argc,                       /* Number of elements in argv array */
+  const char * const *argv,       /* xCreate/xConnect argument array */
+  sqlite3_vtab **ppVtab,          /* OUT: New sqlite3_vtab object */
+  char **pzErr                    /* OUT: sqlite3_malloc'd error message */
+){
+  return fts3InitVtab(0, db, pAux, argc, argv, ppVtab, pzErr);
+}
+static int fts3CreateMethod(
+  sqlite3 *db,                    /* Database connection */
+  void *pAux,                     /* Pointer to tokenizer hash table */
+  int argc,                       /* Number of elements in argv array */
+  const char * const *argv,       /* xCreate/xConnect argument array */
+  sqlite3_vtab **ppVtab,          /* OUT: New sqlite3_vtab object */
+  char **pzErr                    /* OUT: sqlite3_malloc'd error message */
+){
+  return fts3InitVtab(1, db, pAux, argc, argv, ppVtab, pzErr);
+}
+
+/*
+** Set the pIdxInfo->estimatedRows variable to nRow. Unless this
+** extension is currently being used by a version of SQLite too old to
+** support estimatedRows. In that case this function is a no-op.
+*/
+static void fts3SetEstimatedRows(sqlite3_index_info *pIdxInfo, i64 nRow){
+#if SQLITE_VERSION_NUMBER>=3008002
+  if( sqlite3_libversion_number()>=3008002 ){
+    pIdxInfo->estimatedRows = nRow;
+  }
+#endif
+}
+
+/*
+** Set the SQLITE_INDEX_SCAN_UNIQUE flag in pIdxInfo->flags. Unless this
+** extension is currently being used by a version of SQLite too old to
+** support index-info flags. In that case this function is a no-op.
+*/
+static void fts3SetUniqueFlag(sqlite3_index_info *pIdxInfo){
+#if SQLITE_VERSION_NUMBER>=3008012
+  if( sqlite3_libversion_number()>=3008012 ){
+    pIdxInfo->idxFlags |= SQLITE_INDEX_SCAN_UNIQUE;
+  }
+#endif
+}
+
+/* 
+** Implementation of the xBestIndex method for FTS3 tables. There
+** are three possible strategies, in order of preference:
+**
+**   1. Direct lookup by rowid or docid. 
+**   2. Full-text search using a MATCH operator on a non-docid column.
+**   3. Linear scan of %_content table.
+*/
+static int fts3BestIndexMethod(sqlite3_vtab *pVTab, sqlite3_index_info *pInfo){
+  Fts3Table *p = (Fts3Table *)pVTab;
+  int i;                          /* Iterator variable */
+  int iCons = -1;                 /* Index of constraint to use */
+
+  int iLangidCons = -1;           /* Index of langid=x constraint, if present */
+  int iDocidGe = -1;              /* Index of docid>=x constraint, if present */
+  int iDocidLe = -1;              /* Index of docid<=x constraint, if present */
+  int iIdx;
+
+  if( p->bLock ){
+    return SQLITE_ERROR;
+  }
+
+  /* By default use a full table scan. This is an expensive option,
+  ** so search through the constraints to see if a more efficient 
+  ** strategy is possible.
+  */
+  pInfo->idxNum = FTS3_FULLSCAN_SEARCH;
+  pInfo->estimatedCost = 5000000;
+  for(i=0; i<pInfo->nConstraint; i++){
+    int bDocid;                 /* True if this constraint is on docid */
+    struct sqlite3_index_constraint *pCons = &pInfo->aConstraint[i];
+    if( pCons->usable==0 ){
+      if( pCons->op==SQLITE_INDEX_CONSTRAINT_MATCH ){
+        /* There exists an unusable MATCH constraint. This means that if
+        ** the planner does elect to use the results of this call as part
+        ** of the overall query plan the user will see an "unable to use
+        ** function MATCH in the requested context" error. To discourage
+        ** this, return a very high cost here.  */
+        pInfo->idxNum = FTS3_FULLSCAN_SEARCH;
+        pInfo->estimatedCost = 1e50;
+        fts3SetEstimatedRows(pInfo, ((sqlite3_int64)1) << 50);
+        return SQLITE_OK;
+      }
+      continue;
+    }
+
+    bDocid = (pCons->iColumn<0 || pCons->iColumn==p->nColumn+1);
+
+    /* A direct lookup on the rowid or docid column. Assign a cost of 1.0. */
+    if( iCons<0 && pCons->op==SQLITE_INDEX_CONSTRAINT_EQ && bDocid ){
+      pInfo->idxNum = FTS3_DOCID_SEARCH;
+      pInfo->estimatedCost = 1.0;
+      iCons = i;
+    }
+
+    /* A MATCH constraint. Use a full-text search.
+    **
+    ** If there is more than one MATCH constraint available, use the first
+    ** one encountered. If there is both a MATCH constraint and a direct
+    ** rowid/docid lookup, prefer the MATCH strategy. This is done even 
+    ** though the rowid/docid lookup is faster than a MATCH query, selecting
+    ** it would lead to an "unable to use function MATCH in the requested 
+    ** context" error.
+    */
+    if( pCons->op==SQLITE_INDEX_CONSTRAINT_MATCH 
+     && pCons->iColumn>=0 && pCons->iColumn<=p->nColumn
+    ){
+      pInfo->idxNum = FTS3_FULLTEXT_SEARCH + pCons->iColumn;
+      pInfo->estimatedCost = 2.0;
+      iCons = i;
+    }
+
+    /* Equality constraint on the langid column */
+    if( pCons->op==SQLITE_INDEX_CONSTRAINT_EQ 
+     && pCons->iColumn==p->nColumn + 2
+    ){
+      iLangidCons = i;
+    }
+
+    if( bDocid ){
+      switch( pCons->op ){
+        case SQLITE_INDEX_CONSTRAINT_GE:
+        case SQLITE_INDEX_CONSTRAINT_GT:
+          iDocidGe = i;
+          break;
+
+        case SQLITE_INDEX_CONSTRAINT_LE:
+        case SQLITE_INDEX_CONSTRAINT_LT:
+          iDocidLe = i;
+          break;
+      }
+    }
+  }
+
+  /* If using a docid=? or rowid=? strategy, set the UNIQUE flag. */
+  if( pInfo->idxNum==FTS3_DOCID_SEARCH ) fts3SetUniqueFlag(pInfo);
+
+  iIdx = 1;
+  if( iCons>=0 ){
+    pInfo->aConstraintUsage[iCons].argvIndex = iIdx++;
+    pInfo->aConstraintUsage[iCons].omit = 1;
+  } 
+  if( iLangidCons>=0 ){
+    pInfo->idxNum |= FTS3_HAVE_LANGID;
+    pInfo->aConstraintUsage[iLangidCons].argvIndex = iIdx++;
+  } 
+  if( iDocidGe>=0 ){
+    pInfo->idxNum |= FTS3_HAVE_DOCID_GE;
+    pInfo->aConstraintUsage[iDocidGe].argvIndex = iIdx++;
+  } 
+  if( iDocidLe>=0 ){
+    pInfo->idxNum |= FTS3_HAVE_DOCID_LE;
+    pInfo->aConstraintUsage[iDocidLe].argvIndex = iIdx++;
+  } 
+
+  /* Regardless of the strategy selected, FTS can deliver rows in rowid (or
+  ** docid) order. Both ascending and descending are possible. 
+  */
+  if( pInfo->nOrderBy==1 ){
+    struct sqlite3_index_orderby *pOrder = &pInfo->aOrderBy[0];
+    if( pOrder->iColumn<0 || pOrder->iColumn==p->nColumn+1 ){
+      if( pOrder->desc ){
+        pInfo->idxStr = "DESC";
+      }else{
+        pInfo->idxStr = "ASC";
+      }
+      pInfo->orderByConsumed = 1;
+    }
+  }
+
+  assert( p->pSegments==0 );
+  return SQLITE_OK;
+}
+
+/*
+** Implementation of xOpen method.
+*/
+static int fts3OpenMethod(sqlite3_vtab *pVTab, sqlite3_vtab_cursor **ppCsr){
+  sqlite3_vtab_cursor *pCsr;               /* Allocated cursor */
+
+  UNUSED_PARAMETER(pVTab);
+
+  /* Allocate a buffer large enough for an Fts3Cursor structure. If the
+  ** allocation succeeds, zero it and return SQLITE_OK. Otherwise, 
+  ** if the allocation fails, return SQLITE_NOMEM.
+  */
+  *ppCsr = pCsr = (sqlite3_vtab_cursor *)sqlite3_malloc(sizeof(Fts3Cursor));
+  if( !pCsr ){
+    return SQLITE_NOMEM;
+  }
+  memset(pCsr, 0, sizeof(Fts3Cursor));
+  return SQLITE_OK;
+}
+
+/*
+** Finalize the statement handle at pCsr->pStmt.
+**
+** Or, if that statement handle is one created by fts3CursorSeekStmt(),
+** and the Fts3Table.pSeekStmt slot is currently NULL, save the statement
+** pointer there instead of finalizing it.
+*/
+static void fts3CursorFinalizeStmt(Fts3Cursor *pCsr){
+  if( pCsr->bSeekStmt ){
+    Fts3Table *p = (Fts3Table *)pCsr->base.pVtab;
+    if( p->pSeekStmt==0 ){
+      p->pSeekStmt = pCsr->pStmt;
+      sqlite3_reset(pCsr->pStmt);
+      pCsr->pStmt = 0;
+    }
+    pCsr->bSeekStmt = 0;
+  }
+  sqlite3_finalize(pCsr->pStmt);
+}
+
+/*
+** Free all resources currently held by the cursor passed as the only
+** argument.
+*/
+static void fts3ClearCursor(Fts3Cursor *pCsr){
+  fts3CursorFinalizeStmt(pCsr);
+  sqlite3Fts3FreeDeferredTokens(pCsr);
+  sqlite3_free(pCsr->aDoclist);
+  sqlite3Fts3MIBufferFree(pCsr->pMIBuffer);
+  sqlite3Fts3ExprFree(pCsr->pExpr);
+  memset(&(&pCsr->base)[1], 0, sizeof(Fts3Cursor)-sizeof(sqlite3_vtab_cursor));
+}
+
+/*
+** Close the cursor.  For additional information see the documentation
+** on the xClose method of the virtual table interface.
+*/
+static int fts3CloseMethod(sqlite3_vtab_cursor *pCursor){
+  Fts3Cursor *pCsr = (Fts3Cursor *)pCursor;
+  assert( ((Fts3Table *)pCsr->base.pVtab)->pSegments==0 );
+  fts3ClearCursor(pCsr);
+  assert( ((Fts3Table *)pCsr->base.pVtab)->pSegments==0 );
+  sqlite3_free(pCsr);
+  return SQLITE_OK;
+}
+
+/*
+** If pCsr->pStmt has not been prepared (i.e. if pCsr->pStmt==0), then
+** compose and prepare an SQL statement of the form:
+**
+**    "SELECT <columns> FROM %_content WHERE rowid = ?"
+**
+** (or the equivalent for a content=xxx table) and set pCsr->pStmt to
+** it. If an error occurs, return an SQLite error code.
+*/
+static int fts3CursorSeekStmt(Fts3Cursor *pCsr){
+  int rc = SQLITE_OK;
+  if( pCsr->pStmt==0 ){
+    Fts3Table *p = (Fts3Table *)pCsr->base.pVtab;
+    char *zSql;
+    if( p->pSeekStmt ){
+      pCsr->pStmt = p->pSeekStmt;
+      p->pSeekStmt = 0;
+    }else{
+      zSql = sqlite3_mprintf("SELECT %s WHERE rowid = ?", p->zReadExprlist);
+      if( !zSql ) return SQLITE_NOMEM;
+      p->bLock++;
+      rc = sqlite3_prepare_v3(
+          p->db, zSql,-1,SQLITE_PREPARE_PERSISTENT,&pCsr->pStmt,0
+      );
+      p->bLock--;
+      sqlite3_free(zSql);
+    }
+    if( rc==SQLITE_OK ) pCsr->bSeekStmt = 1;
+  }
+  return rc;
+}
+
+/*
+** Position the pCsr->pStmt statement so that it is on the row
+** of the %_content table that contains the last match.  Return
+** SQLITE_OK on success.  
+*/
+static int fts3CursorSeek(sqlite3_context *pContext, Fts3Cursor *pCsr){
+  int rc = SQLITE_OK;
+  if( pCsr->isRequireSeek ){
+    rc = fts3CursorSeekStmt(pCsr);
+    if( rc==SQLITE_OK ){
+      Fts3Table *pTab = (Fts3Table*)pCsr->base.pVtab;
+      pTab->bLock++;
+      sqlite3_bind_int64(pCsr->pStmt, 1, pCsr->iPrevId);
+      pCsr->isRequireSeek = 0;
+      if( SQLITE_ROW==sqlite3_step(pCsr->pStmt) ){
+        pTab->bLock--;
+        return SQLITE_OK;
+      }else{
+        pTab->bLock--;
+        rc = sqlite3_reset(pCsr->pStmt);
+        if( rc==SQLITE_OK && ((Fts3Table *)pCsr->base.pVtab)->zContentTbl==0 ){
+          /* If no row was found and no error has occurred, then the %_content
+          ** table is missing a row that is present in the full-text index.
+          ** The data structures are corrupt.  */
+          rc = FTS_CORRUPT_VTAB;
+          pCsr->isEof = 1;
+        }
+      }
+    }
+  }
+
+  if( rc!=SQLITE_OK && pContext ){
+    sqlite3_result_error_code(pContext, rc);
+  }
+  return rc;
+}
+
+/*
+** This function is used to process a single interior node when searching
+** a b-tree for a term or term prefix. The node data is passed to this 
+** function via the zNode/nNode parameters. The term to search for is
+** passed in zTerm/nTerm.
+**
+** If piFirst is not NULL, then this function sets *piFirst to the blockid
+** of the child node that heads the sub-tree that may contain the term.
+**
+** If piLast is not NULL, then *piLast is set to the right-most child node
+** that heads a sub-tree that may contain a term for which zTerm/nTerm is
+** a prefix.
+**
+** If an OOM error occurs, SQLITE_NOMEM is returned. Otherwise, SQLITE_OK.
+*/
+static int fts3ScanInteriorNode(
+  const char *zTerm,              /* Term to select leaves for */
+  int nTerm,                      /* Size of term zTerm in bytes */
+  const char *zNode,              /* Buffer containing segment interior node */
+  int nNode,                      /* Size of buffer at zNode */
+  sqlite3_int64 *piFirst,         /* OUT: Selected child node */
+  sqlite3_int64 *piLast           /* OUT: Selected child node */
+){
+  int rc = SQLITE_OK;             /* Return code */
+  const char *zCsr = zNode;       /* Cursor to iterate through node */
+  const char *zEnd = &zCsr[nNode];/* End of interior node buffer */
+  char *zBuffer = 0;              /* Buffer to load terms into */
+  i64 nAlloc = 0;                 /* Size of allocated buffer */
+  int isFirstTerm = 1;            /* True when processing first term on page */
+  u64 iChild;                     /* Block id of child node to descend to */
+  int nBuffer = 0;                /* Total term size */
+
+  /* Skip over the 'height' varint that occurs at the start of every 
+  ** interior node. Then load the blockid of the left-child of the b-tree
+  ** node into variable iChild.  
+  **
+  ** Even if the data structure on disk is corrupted, this (reading two
+  ** varints from the buffer) does not risk an overread. If zNode is a
+  ** root node, then the buffer comes from a SELECT statement. SQLite does
+  ** not make this guarantee explicitly, but in practice there are always
+  ** either more than 20 bytes of allocated space following the nNode bytes of
+  ** contents, or two zero bytes. Or, if the node is read from the %_segments
+  ** table, then there are always 20 bytes of zeroed padding following the
+  ** nNode bytes of content (see sqlite3Fts3ReadBlock() for details).
+  */
+  zCsr += sqlite3Fts3GetVarintU(zCsr, &iChild);
+  zCsr += sqlite3Fts3GetVarintU(zCsr, &iChild);
+  if( zCsr>zEnd ){
+    return FTS_CORRUPT_VTAB;
+  }
+  
+  while( zCsr<zEnd && (piFirst || piLast) ){
+    int cmp;                      /* memcmp() result */
+    int nSuffix;                  /* Size of term suffix */
+    int nPrefix = 0;              /* Size of term prefix */
+  
+    /* Load the next term on the node into zBuffer. Use realloc() to expand
+    ** the size of zBuffer if required.  */
+    if( !isFirstTerm ){
+      zCsr += fts3GetVarint32(zCsr, &nPrefix);
+      if( nPrefix>nBuffer ){
+        rc = FTS_CORRUPT_VTAB;
+        goto finish_scan;
+      }
+    }
+    isFirstTerm = 0;
+    zCsr += fts3GetVarint32(zCsr, &nSuffix);
+    
+    assert( nPrefix>=0 && nSuffix>=0 );
+    if( nPrefix>zCsr-zNode || nSuffix>zEnd-zCsr || nSuffix==0 ){
+      rc = FTS_CORRUPT_VTAB;
+      goto finish_scan;
+    }
+    if( (i64)nPrefix+nSuffix>nAlloc ){
+      char *zNew;
+      nAlloc = ((i64)nPrefix+nSuffix) * 2;
+      zNew = (char *)sqlite3_realloc64(zBuffer, nAlloc);
+      if( !zNew ){
+        rc = SQLITE_NOMEM;
+        goto finish_scan;
+      }
+      zBuffer = zNew;
+    }
+    assert( zBuffer );
+    memcpy(&zBuffer[nPrefix], zCsr, nSuffix);
+    nBuffer = nPrefix + nSuffix;
+    zCsr += nSuffix;
+
+    /* Compare the term we are searching for with the term just loaded from
+    ** the interior node. If the specified term is greater than or equal
+    ** to the term from the interior node, then all terms on the sub-tree 
+    ** headed by node iChild are smaller than zTerm. No need to search 
+    ** iChild.
+    **
+    ** If the interior node term is larger than the specified term, then
+    ** the tree headed by iChild may contain the specified term.
+    */
+    cmp = memcmp(zTerm, zBuffer, (nBuffer>nTerm ? nTerm : nBuffer));
+    if( piFirst && (cmp<0 || (cmp==0 && nBuffer>nTerm)) ){
+      *piFirst = (i64)iChild;
+      piFirst = 0;
+    }
+
+    if( piLast && cmp<0 ){
+      *piLast = (i64)iChild;
+      piLast = 0;
+    }
+
+    iChild++;
+  };
+
+  if( piFirst ) *piFirst = (i64)iChild;
+  if( piLast ) *piLast = (i64)iChild;
+
+ finish_scan:
+  sqlite3_free(zBuffer);
+  return rc;
+}
+
+
+/*
+** The buffer pointed to by argument zNode (size nNode bytes) contains an
+** interior node of a b-tree segment. The zTerm buffer (size nTerm bytes)
+** contains a term. This function searches the sub-tree headed by the zNode
+** node for the range of leaf nodes that may contain the specified term
+** or terms for which the specified term is a prefix.
+**
+** If piLeaf is not NULL, then *piLeaf is set to the blockid of the 
+** left-most leaf node in the tree that may contain the specified term.
+** If piLeaf2 is not NULL, then *piLeaf2 is set to the blockid of the
+** right-most leaf node that may contain a term for which the specified
+** term is a prefix.
+**
+** It is possible that the range of returned leaf nodes does not contain 
+** the specified term or any terms for which it is a prefix. However, if the 
+** segment does contain any such terms, they are stored within the identified
+** range. Because this function only inspects interior segment nodes (and
+** never loads leaf nodes into memory), it is not possible to be sure.
+**
+** If an error occurs, an error code other than SQLITE_OK is returned.
+*/ 
+static int fts3SelectLeaf(
+  Fts3Table *p,                   /* Virtual table handle */
+  const char *zTerm,              /* Term to select leaves for */
+  int nTerm,                      /* Size of term zTerm in bytes */
+  const char *zNode,              /* Buffer containing segment interior node */
+  int nNode,                      /* Size of buffer at zNode */
+  sqlite3_int64 *piLeaf,          /* Selected leaf node */
+  sqlite3_int64 *piLeaf2          /* Selected leaf node */
+){
+  int rc = SQLITE_OK;             /* Return code */
+  int iHeight;                    /* Height of this node in tree */
+
+  assert( piLeaf || piLeaf2 );
+
+  fts3GetVarint32(zNode, &iHeight);
+  rc = fts3ScanInteriorNode(zTerm, nTerm, zNode, nNode, piLeaf, piLeaf2);
+  assert_fts3_nc( !piLeaf2 || !piLeaf || rc!=SQLITE_OK || (*piLeaf<=*piLeaf2) );
+
+  if( rc==SQLITE_OK && iHeight>1 ){
+    char *zBlob = 0;              /* Blob read from %_segments table */
+    int nBlob = 0;                /* Size of zBlob in bytes */
+
+    if( piLeaf && piLeaf2 && (*piLeaf!=*piLeaf2) ){
+      rc = sqlite3Fts3ReadBlock(p, *piLeaf, &zBlob, &nBlob, 0);
+      if( rc==SQLITE_OK ){
+        rc = fts3SelectLeaf(p, zTerm, nTerm, zBlob, nBlob, piLeaf, 0);
+      }
+      sqlite3_free(zBlob);
+      piLeaf = 0;
+      zBlob = 0;
+    }
+
+    if( rc==SQLITE_OK ){
+      rc = sqlite3Fts3ReadBlock(p, piLeaf?*piLeaf:*piLeaf2, &zBlob, &nBlob, 0);
+    }
+    if( rc==SQLITE_OK ){
+      int iNewHeight = 0;
+      fts3GetVarint32(zBlob, &iNewHeight);
+      if( iNewHeight>=iHeight ){
+        rc = FTS_CORRUPT_VTAB;
+      }else{
+        rc = fts3SelectLeaf(p, zTerm, nTerm, zBlob, nBlob, piLeaf, piLeaf2);
+      }
+    }
+    sqlite3_free(zBlob);
+  }
+
+  return rc;
+}
+
+/*
+** This function is used to create delta-encoded serialized lists of FTS3 
+** varints. Each call to this function appends a single varint to a list.
+*/
+static void fts3PutDeltaVarint(
+  char **pp,                      /* IN/OUT: Output pointer */
+  sqlite3_int64 *piPrev,          /* IN/OUT: Previous value written to list */
+  sqlite3_int64 iVal              /* Write this value to the list */
+){
+  assert_fts3_nc( iVal-*piPrev > 0 || (*piPrev==0 && iVal==0) );
+  *pp += sqlite3Fts3PutVarint(*pp, iVal-*piPrev);
+  *piPrev = iVal;
+}
+
+/*
+** When this function is called, *ppPoslist is assumed to point to the 
+** start of a position-list. After it returns, *ppPoslist points to the
+** first byte after the position-list.
+**
+** A position list is list of positions (delta encoded) and columns for 
+** a single document record of a doclist.  So, in other words, this
+** routine advances *ppPoslist so that it points to the next docid in
+** the doclist, or to the first byte past the end of the doclist.
+**
+** If pp is not NULL, then the contents of the position list are copied
+** to *pp. *pp is set to point to the first byte past the last byte copied
+** before this function returns.
+*/
+static void fts3PoslistCopy(char **pp, char **ppPoslist){
+  char *pEnd = *ppPoslist;
+  char c = 0;
+
+  /* The end of a position list is marked by a zero encoded as an FTS3 
+  ** varint. A single POS_END (0) byte. Except, if the 0 byte is preceded by
+  ** a byte with the 0x80 bit set, then it is not a varint 0, but the tail
+  ** of some other, multi-byte, value.
+  **
+  ** The following while-loop moves pEnd to point to the first byte that is not 
+  ** immediately preceded by a byte with the 0x80 bit set. Then increments
+  ** pEnd once more so that it points to the byte immediately following the
+  ** last byte in the position-list.
+  */
+  while( *pEnd | c ){
+    c = *pEnd++ & 0x80;
+    testcase( c!=0 && (*pEnd)==0 );
+  }
+  pEnd++;  /* Advance past the POS_END terminator byte */
+
+  if( pp ){
+    int n = (int)(pEnd - *ppPoslist);
+    char *p = *pp;
+    memcpy(p, *ppPoslist, n);
+    p += n;
+    *pp = p;
+  }
+  *ppPoslist = pEnd;
+}
+
+/*
+** When this function is called, *ppPoslist is assumed to point to the 
+** start of a column-list. After it returns, *ppPoslist points to the
+** to the terminator (POS_COLUMN or POS_END) byte of the column-list.
+**
+** A column-list is list of delta-encoded positions for a single column
+** within a single document within a doclist.
+**
+** The column-list is terminated either by a POS_COLUMN varint (1) or
+** a POS_END varint (0).  This routine leaves *ppPoslist pointing to
+** the POS_COLUMN or POS_END that terminates the column-list.
+**
+** If pp is not NULL, then the contents of the column-list are copied
+** to *pp. *pp is set to point to the first byte past the last byte copied
+** before this function returns.  The POS_COLUMN or POS_END terminator
+** is not copied into *pp.
+*/
+static void fts3ColumnlistCopy(char **pp, char **ppPoslist){
+  char *pEnd = *ppPoslist;
+  char c = 0;
+
+  /* A column-list is terminated by either a 0x01 or 0x00 byte that is
+  ** not part of a multi-byte varint.
+  */
+  while( 0xFE & (*pEnd | c) ){
+    c = *pEnd++ & 0x80;
+    testcase( c!=0 && ((*pEnd)&0xfe)==0 );
+  }
+  if( pp ){
+    int n = (int)(pEnd - *ppPoslist);
+    char *p = *pp;
+    memcpy(p, *ppPoslist, n);
+    p += n;
+    *pp = p;
+  }
+  *ppPoslist = pEnd;
+}
+
+/*
+** Value used to signify the end of an position-list. This must be
+** as large or larger than any value that might appear on the
+** position-list, even a position list that has been corrupted.
+*/
+#define POSITION_LIST_END LARGEST_INT64
+
+/*
+** This function is used to help parse position-lists. When this function is
+** called, *pp may point to the start of the next varint in the position-list
+** being parsed, or it may point to 1 byte past the end of the position-list
+** (in which case **pp will be a terminator bytes POS_END (0) or
+** (1)).
+**
+** If *pp points past the end of the current position-list, set *pi to 
+** POSITION_LIST_END and return. Otherwise, read the next varint from *pp,
+** increment the current value of *pi by the value read, and set *pp to
+** point to the next value before returning.
+**
+** Before calling this routine *pi must be initialized to the value of
+** the previous position, or zero if we are reading the first position
+** in the position-list.  Because positions are delta-encoded, the value
+** of the previous position is needed in order to compute the value of
+** the next position.
+*/
+static void fts3ReadNextPos(
+  char **pp,                    /* IN/OUT: Pointer into position-list buffer */
+  sqlite3_int64 *pi             /* IN/OUT: Value read from position-list */
+){
+  if( (**pp)&0xFE ){
+    int iVal;
+    *pp += fts3GetVarint32((*pp), &iVal);
+    *pi += iVal;
+    *pi -= 2;
+  }else{
+    *pi = POSITION_LIST_END;
+  }
+}
+
+/*
+** If parameter iCol is not 0, write an POS_COLUMN (1) byte followed by
+** the value of iCol encoded as a varint to *pp.   This will start a new
+** column list.
+**
+** Set *pp to point to the byte just after the last byte written before 
+** returning (do not modify it if iCol==0). Return the total number of bytes
+** written (0 if iCol==0).
+*/
+static int fts3PutColNumber(char **pp, int iCol){
+  int n = 0;                      /* Number of bytes written */
+  if( iCol ){
+    char *p = *pp;                /* Output pointer */
+    n = 1 + sqlite3Fts3PutVarint(&p[1], iCol);
+    *p = 0x01;
+    *pp = &p[n];
+  }
+  return n;
+}
+
+/*
+** Compute the union of two position lists.  The output written
+** into *pp contains all positions of both *pp1 and *pp2 in sorted
+** order and with any duplicates removed.  All pointers are
+** updated appropriately.   The caller is responsible for insuring
+** that there is enough space in *pp to hold the complete output.
+*/
+static int fts3PoslistMerge(
+  char **pp,                      /* Output buffer */
+  char **pp1,                     /* Left input list */
+  char **pp2                      /* Right input list */
+){
+  char *p = *pp;
+  char *p1 = *pp1;
+  char *p2 = *pp2;
+
+  while( *p1 || *p2 ){
+    int iCol1;         /* The current column index in pp1 */
+    int iCol2;         /* The current column index in pp2 */
+
+    if( *p1==POS_COLUMN ){ 
+      fts3GetVarint32(&p1[1], &iCol1);
+      if( iCol1==0 ) return FTS_CORRUPT_VTAB;
+    }
+    else if( *p1==POS_END ) iCol1 = 0x7fffffff;
+    else iCol1 = 0;
+
+    if( *p2==POS_COLUMN ){
+      fts3GetVarint32(&p2[1], &iCol2);
+      if( iCol2==0 ) return FTS_CORRUPT_VTAB;
+    }
+    else if( *p2==POS_END ) iCol2 = 0x7fffffff;
+    else iCol2 = 0;
+
+    if( iCol1==iCol2 ){
+      sqlite3_int64 i1 = 0;       /* Last position from pp1 */
+      sqlite3_int64 i2 = 0;       /* Last position from pp2 */
+      sqlite3_int64 iPrev = 0;
+      int n = fts3PutColNumber(&p, iCol1);
+      p1 += n;
+      p2 += n;
+
+      /* At this point, both p1 and p2 point to the start of column-lists
+      ** for the same column (the column with index iCol1 and iCol2).
+      ** A column-list is a list of non-negative delta-encoded varints, each 
+      ** incremented by 2 before being stored. Each list is terminated by a
+      ** POS_END (0) or POS_COLUMN (1). The following block merges the two lists
+      ** and writes the results to buffer p. p is left pointing to the byte
+      ** after the list written. No terminator (POS_END or POS_COLUMN) is
+      ** written to the output.
+      */
+      fts3GetDeltaVarint(&p1, &i1);
+      fts3GetDeltaVarint(&p2, &i2);
+      if( i1<2 || i2<2 ){
+        break;
+      }
+      do {
+        fts3PutDeltaVarint(&p, &iPrev, (i1<i2) ? i1 : i2); 
+        iPrev -= 2;
+        if( i1==i2 ){
+          fts3ReadNextPos(&p1, &i1);
+          fts3ReadNextPos(&p2, &i2);
+        }else if( i1<i2 ){
+          fts3ReadNextPos(&p1, &i1);
+        }else{
+          fts3ReadNextPos(&p2, &i2);
+        }
+      }while( i1!=POSITION_LIST_END || i2!=POSITION_LIST_END );
+    }else if( iCol1<iCol2 ){
+      p1 += fts3PutColNumber(&p, iCol1);
+      fts3ColumnlistCopy(&p, &p1);
+    }else{
+      p2 += fts3PutColNumber(&p, iCol2);
+      fts3ColumnlistCopy(&p, &p2);
+    }
+  }
+
+  *p++ = POS_END;
+  *pp = p;
+  *pp1 = p1 + 1;
+  *pp2 = p2 + 1;
+  return SQLITE_OK;
+}
+
+/*
+** This function is used to merge two position lists into one. When it is
+** called, *pp1 and *pp2 must both point to position lists. A position-list is
+** the part of a doclist that follows each document id. For example, if a row
+** contains:
+**
+**     'a b c'|'x y z'|'a b b a'
+**
+** Then the position list for this row for token 'b' would consist of:
+**
+**     0x02 0x01 0x02 0x03 0x03 0x00
+**
+** When this function returns, both *pp1 and *pp2 are left pointing to the
+** byte following the 0x00 terminator of their respective position lists.
+**
+** If isSaveLeft is 0, an entry is added to the output position list for 
+** each position in *pp2 for which there exists one or more positions in
+** *pp1 so that (pos(*pp2)>pos(*pp1) && pos(*pp2)-pos(*pp1)<=nToken). i.e.
+** when the *pp1 token appears before the *pp2 token, but not more than nToken
+** slots before it.
+**
+** e.g. nToken==1 searches for adjacent positions.
+*/
+static int fts3PoslistPhraseMerge(
+  char **pp,                      /* IN/OUT: Preallocated output buffer */
+  int nToken,                     /* Maximum difference in token positions */
+  int isSaveLeft,                 /* Save the left position */
+  int isExact,                    /* If *pp1 is exactly nTokens before *pp2 */
+  char **pp1,                     /* IN/OUT: Left input list */
+  char **pp2                      /* IN/OUT: Right input list */
+){
+  char *p = *pp;
+  char *p1 = *pp1;
+  char *p2 = *pp2;
+  int iCol1 = 0;
+  int iCol2 = 0;
+
+  /* Never set both isSaveLeft and isExact for the same invocation. */
+  assert( isSaveLeft==0 || isExact==0 );
+
+  assert_fts3_nc( p!=0 && *p1!=0 && *p2!=0 );
+  if( *p1==POS_COLUMN ){ 
+    p1++;
+    p1 += fts3GetVarint32(p1, &iCol1);
+    /* iCol1==0 indicates corruption. Column 0 does not have a POS_COLUMN
+    ** entry, so this is actually end-of-doclist. */
+    if( iCol1==0 ) return 0;
+  }
+  if( *p2==POS_COLUMN ){ 
+    p2++;
+    p2 += fts3GetVarint32(p2, &iCol2);
+    /* As above, iCol2==0 indicates corruption. */
+    if( iCol2==0 ) return 0;
+  }
+
+  while( 1 ){
+    if( iCol1==iCol2 ){
+      char *pSave = p;
+      sqlite3_int64 iPrev = 0;
+      sqlite3_int64 iPos1 = 0;
+      sqlite3_int64 iPos2 = 0;
+
+      if( iCol1 ){
+        *p++ = POS_COLUMN;
+        p += sqlite3Fts3PutVarint(p, iCol1);
+      }
+
+      fts3GetDeltaVarint(&p1, &iPos1); iPos1 -= 2;
+      fts3GetDeltaVarint(&p2, &iPos2); iPos2 -= 2;
+      if( iPos1<0 || iPos2<0 ) break;
+
+      while( 1 ){
+        if( iPos2==iPos1+nToken 
+         || (isExact==0 && iPos2>iPos1 && iPos2<=iPos1+nToken) 
+        ){
+          sqlite3_int64 iSave;
+          iSave = isSaveLeft ? iPos1 : iPos2;
+          fts3PutDeltaVarint(&p, &iPrev, iSave+2); iPrev -= 2;
+          pSave = 0;
+          assert( p );
+        }
+        if( (!isSaveLeft && iPos2<=(iPos1+nToken)) || iPos2<=iPos1 ){
+          if( (*p2&0xFE)==0 ) break;
+          fts3GetDeltaVarint(&p2, &iPos2); iPos2 -= 2;
+        }else{
+          if( (*p1&0xFE)==0 ) break;
+          fts3GetDeltaVarint(&p1, &iPos1); iPos1 -= 2;
+        }
+      }
+
+      if( pSave ){
+        assert( pp && p );
+        p = pSave;
+      }
+
+      fts3ColumnlistCopy(0, &p1);
+      fts3ColumnlistCopy(0, &p2);
+      assert( (*p1&0xFE)==0 && (*p2&0xFE)==0 );
+      if( 0==*p1 || 0==*p2 ) break;
+
+      p1++;
+      p1 += fts3GetVarint32(p1, &iCol1);
+      p2++;
+      p2 += fts3GetVarint32(p2, &iCol2);
+    }
+
+    /* Advance pointer p1 or p2 (whichever corresponds to the smaller of
+    ** iCol1 and iCol2) so that it points to either the 0x00 that marks the
+    ** end of the position list, or the 0x01 that precedes the next 
+    ** column-number in the position list. 
+    */
+    else if( iCol1<iCol2 ){
+      fts3ColumnlistCopy(0, &p1);
+      if( 0==*p1 ) break;
+      p1++;
+      p1 += fts3GetVarint32(p1, &iCol1);
+    }else{
+      fts3ColumnlistCopy(0, &p2);
+      if( 0==*p2 ) break;
+      p2++;
+      p2 += fts3GetVarint32(p2, &iCol2);
+    }
+  }
+
+  fts3PoslistCopy(0, &p2);
+  fts3PoslistCopy(0, &p1);
+  *pp1 = p1;
+  *pp2 = p2;
+  if( *pp==p ){
+    return 0;
+  }
+  *p++ = 0x00;
+  *pp = p;
+  return 1;
+}
+
+/*
+** Merge two position-lists as required by the NEAR operator. The argument
+** position lists correspond to the left and right phrases of an expression 
+** like:
+**
+**     "phrase 1" NEAR "phrase number 2"
+**
+** Position list *pp1 corresponds to the left-hand side of the NEAR 
+** expression and *pp2 to the right. As usual, the indexes in the position 
+** lists are the offsets of the last token in each phrase (tokens "1" and "2" 
+** in the example above).
+**
+** The output position list - written to *pp - is a copy of *pp2 with those
+** entries that are not sufficiently NEAR entries in *pp1 removed.
+*/
+static int fts3PoslistNearMerge(
+  char **pp,                      /* Output buffer */
+  char *aTmp,                     /* Temporary buffer space */
+  int nRight,                     /* Maximum difference in token positions */
+  int nLeft,                      /* Maximum difference in token positions */
+  char **pp1,                     /* IN/OUT: Left input list */
+  char **pp2                      /* IN/OUT: Right input list */
+){
+  char *p1 = *pp1;
+  char *p2 = *pp2;
+
+  char *pTmp1 = aTmp;
+  char *pTmp2;
+  char *aTmp2;
+  int res = 1;
+
+  fts3PoslistPhraseMerge(&pTmp1, nRight, 0, 0, pp1, pp2);
+  aTmp2 = pTmp2 = pTmp1;
+  *pp1 = p1;
+  *pp2 = p2;
+  fts3PoslistPhraseMerge(&pTmp2, nLeft, 1, 0, pp2, pp1);
+  if( pTmp1!=aTmp && pTmp2!=aTmp2 ){
+    fts3PoslistMerge(pp, &aTmp, &aTmp2);
+  }else if( pTmp1!=aTmp ){
+    fts3PoslistCopy(pp, &aTmp);
+  }else if( pTmp2!=aTmp2 ){
+    fts3PoslistCopy(pp, &aTmp2);
+  }else{
+    res = 0;
+  }
+
+  return res;
+}
+
+/* 
+** An instance of this function is used to merge together the (potentially
+** large number of) doclists for each term that matches a prefix query.
+** See function fts3TermSelectMerge() for details.
+*/
+typedef struct TermSelect TermSelect;
+struct TermSelect {
+  char *aaOutput[16];             /* Malloc'd output buffers */
+  int anOutput[16];               /* Size each output buffer in bytes */
+};
+
+/*
+** This function is used to read a single varint from a buffer. Parameter
+** pEnd points 1 byte past the end of the buffer. When this function is
+** called, if *pp points to pEnd or greater, then the end of the buffer
+** has been reached. In this case *pp is set to 0 and the function returns.
+**
+** If *pp does not point to or past pEnd, then a single varint is read
+** from *pp. *pp is then set to point 1 byte past the end of the read varint.
+**
+** If bDescIdx is false, the value read is added to *pVal before returning.
+** If it is true, the value read is subtracted from *pVal before this 
+** function returns.
+*/
+static void fts3GetDeltaVarint3(
+  char **pp,                      /* IN/OUT: Point to read varint from */
+  char *pEnd,                     /* End of buffer */
+  int bDescIdx,                   /* True if docids are descending */
+  sqlite3_int64 *pVal             /* IN/OUT: Integer value */
+){
+  if( *pp>=pEnd ){
+    *pp = 0;
+  }else{
+    u64 iVal;
+    *pp += sqlite3Fts3GetVarintU(*pp, &iVal);
+    if( bDescIdx ){
+      *pVal = (i64)((u64)*pVal - iVal);
+    }else{
+      *pVal = (i64)((u64)*pVal + iVal);
+    }
+  }
+}
+
+/*
+** This function is used to write a single varint to a buffer. The varint
+** is written to *pp. Before returning, *pp is set to point 1 byte past the
+** end of the value written.
+**
+** If *pbFirst is zero when this function is called, the value written to
+** the buffer is that of parameter iVal. 
+**
+** If *pbFirst is non-zero when this function is called, then the value 
+** written is either (iVal-*piPrev) (if bDescIdx is zero) or (*piPrev-iVal)
+** (if bDescIdx is non-zero).
+**
+** Before returning, this function always sets *pbFirst to 1 and *piPrev
+** to the value of parameter iVal.
+*/
+static void fts3PutDeltaVarint3(
+  char **pp,                      /* IN/OUT: Output pointer */
+  int bDescIdx,                   /* True for descending docids */
+  sqlite3_int64 *piPrev,          /* IN/OUT: Previous value written to list */
+  int *pbFirst,                   /* IN/OUT: True after first int written */
+  sqlite3_int64 iVal              /* Write this value to the list */
+){
+  sqlite3_uint64 iWrite;
+  if( bDescIdx==0 || *pbFirst==0 ){
+    assert_fts3_nc( *pbFirst==0 || iVal>=*piPrev );
+    iWrite = (u64)iVal - (u64)*piPrev;
+  }else{
+    assert_fts3_nc( *piPrev>=iVal );
+    iWrite = (u64)*piPrev - (u64)iVal;
+  }
+  assert( *pbFirst || *piPrev==0 );
+  assert_fts3_nc( *pbFirst==0 || iWrite>0 );
+  *pp += sqlite3Fts3PutVarint(*pp, iWrite);
+  *piPrev = iVal;
+  *pbFirst = 1;
+}
+
+
+/*
+** This macro is used by various functions that merge doclists. The two
+** arguments are 64-bit docid values. If the value of the stack variable
+** bDescDoclist is 0 when this macro is invoked, then it returns (i1-i2). 
+** Otherwise, (i2-i1).
+**
+** Using this makes it easier to write code that can merge doclists that are
+** sorted in either ascending or descending order.
+*/
+/* #define DOCID_CMP(i1, i2) ((bDescDoclist?-1:1) * (i64)((u64)i1-i2)) */
+#define DOCID_CMP(i1, i2) ((bDescDoclist?-1:1) * (i1>i2?1:((i1==i2)?0:-1)))
+
+/*
+** This function does an "OR" merge of two doclists (output contains all
+** positions contained in either argument doclist). If the docids in the 
+** input doclists are sorted in ascending order, parameter bDescDoclist
+** should be false. If they are sorted in ascending order, it should be
+** passed a non-zero value.
+**
+** If no error occurs, *paOut is set to point at an sqlite3_malloc'd buffer
+** containing the output doclist and SQLITE_OK is returned. In this case
+** *pnOut is set to the number of bytes in the output doclist.
+**
+** If an error occurs, an SQLite error code is returned. The output values
+** are undefined in this case.
+*/
+static int fts3DoclistOrMerge(
+  int bDescDoclist,               /* True if arguments are desc */
+  char *a1, int n1,               /* First doclist */
+  char *a2, int n2,               /* Second doclist */
+  char **paOut, int *pnOut        /* OUT: Malloc'd doclist */
+){
+  int rc = SQLITE_OK;
+  sqlite3_int64 i1 = 0;
+  sqlite3_int64 i2 = 0;
+  sqlite3_int64 iPrev = 0;
+  char *pEnd1 = &a1[n1];
+  char *pEnd2 = &a2[n2];
+  char *p1 = a1;
+  char *p2 = a2;
+  char *p;
+  char *aOut;
+  int bFirstOut = 0;
+
+  *paOut = 0;
+  *pnOut = 0;
+
+  /* Allocate space for the output. Both the input and output doclists
+  ** are delta encoded. If they are in ascending order (bDescDoclist==0),
+  ** then the first docid in each list is simply encoded as a varint. For
+  ** each subsequent docid, the varint stored is the difference between the
+  ** current and previous docid (a positive number - since the list is in
+  ** ascending order).
+  **
+  ** The first docid written to the output is therefore encoded using the 
+  ** same number of bytes as it is in whichever of the input lists it is
+  ** read from. And each subsequent docid read from the same input list 
+  ** consumes either the same or less bytes as it did in the input (since
+  ** the difference between it and the previous value in the output must
+  ** be a positive value less than or equal to the delta value read from 
+  ** the input list). The same argument applies to all but the first docid
+  ** read from the 'other' list. And to the contents of all position lists
+  ** that will be copied and merged from the input to the output.
+  **
+  ** However, if the first docid copied to the output is a negative number,
+  ** then the encoding of the first docid from the 'other' input list may
+  ** be larger in the output than it was in the input (since the delta value
+  ** may be a larger positive integer than the actual docid).
+  **
+  ** The space required to store the output is therefore the sum of the
+  ** sizes of the two inputs, plus enough space for exactly one of the input
+  ** docids to grow. 
+  **
+  ** A symetric argument may be made if the doclists are in descending 
+  ** order.
+  */
+  aOut = sqlite3_malloc64((i64)n1+n2+FTS3_VARINT_MAX-1+FTS3_BUFFER_PADDING);
+  if( !aOut ) return SQLITE_NOMEM;
+
+  p = aOut;
+  fts3GetDeltaVarint3(&p1, pEnd1, 0, &i1);
+  fts3GetDeltaVarint3(&p2, pEnd2, 0, &i2);
+  while( p1 || p2 ){
+    sqlite3_int64 iDiff = DOCID_CMP(i1, i2);
+
+    if( p2 && p1 && iDiff==0 ){
+      fts3PutDeltaVarint3(&p, bDescDoclist, &iPrev, &bFirstOut, i1);
+      rc = fts3PoslistMerge(&p, &p1, &p2);
+      if( rc ) break;
+      fts3GetDeltaVarint3(&p1, pEnd1, bDescDoclist, &i1);
+      fts3GetDeltaVarint3(&p2, pEnd2, bDescDoclist, &i2);
+    }else if( !p2 || (p1 && iDiff<0) ){
+      fts3PutDeltaVarint3(&p, bDescDoclist, &iPrev, &bFirstOut, i1);
+      fts3PoslistCopy(&p, &p1);
+      fts3GetDeltaVarint3(&p1, pEnd1, bDescDoclist, &i1);
+    }else{
+      fts3PutDeltaVarint3(&p, bDescDoclist, &iPrev, &bFirstOut, i2);
+      fts3PoslistCopy(&p, &p2);
+      fts3GetDeltaVarint3(&p2, pEnd2, bDescDoclist, &i2);
+    }
+    
+    assert( (p-aOut)<=((p1?(p1-a1):n1)+(p2?(p2-a2):n2)+FTS3_VARINT_MAX-1) );
+  }
+
+  if( rc!=SQLITE_OK ){
+    sqlite3_free(aOut);
+    p = aOut = 0;
+  }else{
+    assert( (p-aOut)<=n1+n2+FTS3_VARINT_MAX-1 );
+    memset(&aOut[(p-aOut)], 0, FTS3_BUFFER_PADDING);
+  }
+  *paOut = aOut;
+  *pnOut = (int)(p-aOut);
+  return rc;
+}
+
+/*
+** This function does a "phrase" merge of two doclists. In a phrase merge,
+** the output contains a copy of each position from the right-hand input
+** doclist for which there is a position in the left-hand input doclist
+** exactly nDist tokens before it.
+**
+** If the docids in the input doclists are sorted in ascending order,
+** parameter bDescDoclist should be false. If they are sorted in ascending 
+** order, it should be passed a non-zero value.
+**
+** The right-hand input doclist is overwritten by this function.
+*/
+static int fts3DoclistPhraseMerge(
+  int bDescDoclist,               /* True if arguments are desc */
+  int nDist,                      /* Distance from left to right (1=adjacent) */
+  char *aLeft, int nLeft,         /* Left doclist */
+  char **paRight, int *pnRight    /* IN/OUT: Right/output doclist */
+){
+  sqlite3_int64 i1 = 0;
+  sqlite3_int64 i2 = 0;
+  sqlite3_int64 iPrev = 0;
+  char *aRight = *paRight;
+  char *pEnd1 = &aLeft[nLeft];
+  char *pEnd2 = &aRight[*pnRight];
+  char *p1 = aLeft;
+  char *p2 = aRight;
+  char *p;
+  int bFirstOut = 0;
+  char *aOut;
+
+  assert( nDist>0 );
+  if( bDescDoclist ){
+    aOut = sqlite3_malloc64((sqlite3_int64)*pnRight + FTS3_VARINT_MAX);
+    if( aOut==0 ) return SQLITE_NOMEM;
+  }else{
+    aOut = aRight;
+  }
+  p = aOut;
+
+  fts3GetDeltaVarint3(&p1, pEnd1, 0, &i1);
+  fts3GetDeltaVarint3(&p2, pEnd2, 0, &i2);
+
+  while( p1 && p2 ){
+    sqlite3_int64 iDiff = DOCID_CMP(i1, i2);
+    if( iDiff==0 ){
+      char *pSave = p;
+      sqlite3_int64 iPrevSave = iPrev;
+      int bFirstOutSave = bFirstOut;
+
+      fts3PutDeltaVarint3(&p, bDescDoclist, &iPrev, &bFirstOut, i1);
+      if( 0==fts3PoslistPhraseMerge(&p, nDist, 0, 1, &p1, &p2) ){
+        p = pSave;
+        iPrev = iPrevSave;
+        bFirstOut = bFirstOutSave;
+      }
+      fts3GetDeltaVarint3(&p1, pEnd1, bDescDoclist, &i1);
+      fts3GetDeltaVarint3(&p2, pEnd2, bDescDoclist, &i2);
+    }else if( iDiff<0 ){
+      fts3PoslistCopy(0, &p1);
+      fts3GetDeltaVarint3(&p1, pEnd1, bDescDoclist, &i1);
+    }else{
+      fts3PoslistCopy(0, &p2);
+      fts3GetDeltaVarint3(&p2, pEnd2, bDescDoclist, &i2);
+    }
+  }
+
+  *pnRight = (int)(p - aOut);
+  if( bDescDoclist ){
+    sqlite3_free(aRight);
+    *paRight = aOut;
+  }
+
+  return SQLITE_OK;
+}
+
+/*
+** Argument pList points to a position list nList bytes in size. This
+** function checks to see if the position list contains any entries for
+** a token in position 0 (of any column). If so, it writes argument iDelta
+** to the output buffer pOut, followed by a position list consisting only
+** of the entries from pList at position 0, and terminated by an 0x00 byte.
+** The value returned is the number of bytes written to pOut (if any).
+*/
+int sqlite3Fts3FirstFilter(
+  sqlite3_int64 iDelta,           /* Varint that may be written to pOut */
+  char *pList,                    /* Position list (no 0x00 term) */
+  int nList,                      /* Size of pList in bytes */
+  char *pOut                      /* Write output here */
+){
+  int nOut = 0;
+  int bWritten = 0;               /* True once iDelta has been written */
+  char *p = pList;
+  char *pEnd = &pList[nList];
+
+  if( *p!=0x01 ){
+    if( *p==0x02 ){
+      nOut += sqlite3Fts3PutVarint(&pOut[nOut], iDelta);
+      pOut[nOut++] = 0x02;
+      bWritten = 1;
+    }
+    fts3ColumnlistCopy(0, &p);
+  }
+
+  while( p<pEnd ){
+    sqlite3_int64 iCol;
+    p++;
+    p += sqlite3Fts3GetVarint(p, &iCol);
+    if( *p==0x02 ){
+      if( bWritten==0 ){
+        nOut += sqlite3Fts3PutVarint(&pOut[nOut], iDelta);
+        bWritten = 1;
+      }
+      pOut[nOut++] = 0x01;
+      nOut += sqlite3Fts3PutVarint(&pOut[nOut], iCol);
+      pOut[nOut++] = 0x02;
+    }
+    fts3ColumnlistCopy(0, &p);
+  }
+  if( bWritten ){
+    pOut[nOut++] = 0x00;
+  }
+
+  return nOut;
+}
+
+
+/*
+** Merge all doclists in the TermSelect.aaOutput[] array into a single
+** doclist stored in TermSelect.aaOutput[0]. If successful, delete all
+** other doclists (except the aaOutput[0] one) and return SQLITE_OK.
+**
+** If an OOM error occurs, return SQLITE_NOMEM. In this case it is
+** the responsibility of the caller to free any doclists left in the
+** TermSelect.aaOutput[] array.
+*/
+static int fts3TermSelectFinishMerge(Fts3Table *p, TermSelect *pTS){
+  char *aOut = 0;
+  int nOut = 0;
+  int i;
+
+  /* Loop through the doclists in the aaOutput[] array. Merge them all
+  ** into a single doclist.
+  */
+  for(i=0; i<SizeofArray(pTS->aaOutput); i++){
+    if( pTS->aaOutput[i] ){
+      if( !aOut ){
+        aOut = pTS->aaOutput[i];
+        nOut = pTS->anOutput[i];
+        pTS->aaOutput[i] = 0;
+      }else{
+        int nNew;
+        char *aNew;
+
+        int rc = fts3DoclistOrMerge(p->bDescIdx, 
+            pTS->aaOutput[i], pTS->anOutput[i], aOut, nOut, &aNew, &nNew
+        );
+        if( rc!=SQLITE_OK ){
+          sqlite3_free(aOut);
+          return rc;
+        }
+
+        sqlite3_free(pTS->aaOutput[i]);
+        sqlite3_free(aOut);
+        pTS->aaOutput[i] = 0;
+        aOut = aNew;
+        nOut = nNew;
+      }
+    }
+  }
+
+  pTS->aaOutput[0] = aOut;
+  pTS->anOutput[0] = nOut;
+  return SQLITE_OK;
+}
+
+/*
+** Merge the doclist aDoclist/nDoclist into the TermSelect object passed
+** as the first argument. The merge is an "OR" merge (see function
+** fts3DoclistOrMerge() for details).
+**
+** This function is called with the doclist for each term that matches
+** a queried prefix. It merges all these doclists into one, the doclist
+** for the specified prefix. Since there can be a very large number of
+** doclists to merge, the merging is done pair-wise using the TermSelect
+** object.
+**
+** This function returns SQLITE_OK if the merge is successful, or an
+** SQLite error code (SQLITE_NOMEM) if an error occurs.
+*/
+static int fts3TermSelectMerge(
+  Fts3Table *p,                   /* FTS table handle */
+  TermSelect *pTS,                /* TermSelect object to merge into */
+  char *aDoclist,                 /* Pointer to doclist */
+  int nDoclist                    /* Size of aDoclist in bytes */
+){
+  if( pTS->aaOutput[0]==0 ){
+    /* If this is the first term selected, copy the doclist to the output
+    ** buffer using memcpy(). 
+    **
+    ** Add FTS3_VARINT_MAX bytes of unused space to the end of the 
+    ** allocation. This is so as to ensure that the buffer is big enough
+    ** to hold the current doclist AND'd with any other doclist. If the
+    ** doclists are stored in order=ASC order, this padding would not be
+    ** required (since the size of [doclistA AND doclistB] is always less
+    ** than or equal to the size of [doclistA] in that case). But this is
+    ** not true for order=DESC. For example, a doclist containing (1, -1) 
+    ** may be smaller than (-1), as in the first example the -1 may be stored
+    ** as a single-byte delta, whereas in the second it must be stored as a
+    ** FTS3_VARINT_MAX byte varint.
+    **
+    ** Similar padding is added in the fts3DoclistOrMerge() function.
+    */
+    pTS->aaOutput[0] = sqlite3_malloc64((i64)nDoclist + FTS3_VARINT_MAX + 1);
+    pTS->anOutput[0] = nDoclist;
+    if( pTS->aaOutput[0] ){
+      memcpy(pTS->aaOutput[0], aDoclist, nDoclist);
+      memset(&pTS->aaOutput[0][nDoclist], 0, FTS3_VARINT_MAX);
+    }else{
+      return SQLITE_NOMEM;
+    }
+  }else{
+    char *aMerge = aDoclist;
+    int nMerge = nDoclist;
+    int iOut;
+
+    for(iOut=0; iOut<SizeofArray(pTS->aaOutput); iOut++){
+      if( pTS->aaOutput[iOut]==0 ){
+        assert( iOut>0 );
+        pTS->aaOutput[iOut] = aMerge;
+        pTS->anOutput[iOut] = nMerge;
+        break;
+      }else{
+        char *aNew;
+        int nNew;
+
+        int rc = fts3DoclistOrMerge(p->bDescIdx, aMerge, nMerge, 
+            pTS->aaOutput[iOut], pTS->anOutput[iOut], &aNew, &nNew
+        );
+        if( rc!=SQLITE_OK ){
+          if( aMerge!=aDoclist ) sqlite3_free(aMerge);
+          return rc;
+        }
+
+        if( aMerge!=aDoclist ) sqlite3_free(aMerge);
+        sqlite3_free(pTS->aaOutput[iOut]);
+        pTS->aaOutput[iOut] = 0;
+  
+        aMerge = aNew;
+        nMerge = nNew;
+        if( (iOut+1)==SizeofArray(pTS->aaOutput) ){
+          pTS->aaOutput[iOut] = aMerge;
+          pTS->anOutput[iOut] = nMerge;
+        }
+      }
+    }
+  }
+  return SQLITE_OK;
+}
+
+/*
+** Append SegReader object pNew to the end of the pCsr->apSegment[] array.
+*/
+static int fts3SegReaderCursorAppend(
+  Fts3MultiSegReader *pCsr, 
+  Fts3SegReader *pNew
+){
+  if( (pCsr->nSegment%16)==0 ){
+    Fts3SegReader **apNew;
+    sqlite3_int64 nByte = (pCsr->nSegment + 16)*sizeof(Fts3SegReader*);
+    apNew = (Fts3SegReader **)sqlite3_realloc64(pCsr->apSegment, nByte);
+    if( !apNew ){
+      sqlite3Fts3SegReaderFree(pNew);
+      return SQLITE_NOMEM;
+    }
+    pCsr->apSegment = apNew;
+  }
+  pCsr->apSegment[pCsr->nSegment++] = pNew;
+  return SQLITE_OK;
+}
+
+/*
+** Add seg-reader objects to the Fts3MultiSegReader object passed as the
+** 8th argument.
+**
+** This function returns SQLITE_OK if successful, or an SQLite error code
+** otherwise.
+*/
+static int fts3SegReaderCursor(
+  Fts3Table *p,                   /* FTS3 table handle */
+  int iLangid,                    /* Language id */
+  int iIndex,                     /* Index to search (from 0 to p->nIndex-1) */
+  int iLevel,                     /* Level of segments to scan */
+  const char *zTerm,              /* Term to query for */
+  int nTerm,                      /* Size of zTerm in bytes */
+  int isPrefix,                   /* True for a prefix search */
+  int isScan,                     /* True to scan from zTerm to EOF */
+  Fts3MultiSegReader *pCsr        /* Cursor object to populate */
+){
+  int rc = SQLITE_OK;             /* Error code */
+  sqlite3_stmt *pStmt = 0;        /* Statement to iterate through segments */
+  int rc2;                        /* Result of sqlite3_reset() */
+
+  /* If iLevel is less than 0 and this is not a scan, include a seg-reader 
+  ** for the pending-terms. If this is a scan, then this call must be being
+  ** made by an fts4aux module, not an FTS table. In this case calling
+  ** Fts3SegReaderPending might segfault, as the data structures used by 
+  ** fts4aux are not completely populated. So it's easiest to filter these
+  ** calls out here.  */
+  if( iLevel<0 && p->aIndex && p->iPrevLangid==iLangid ){
+    Fts3SegReader *pSeg = 0;
+    rc = sqlite3Fts3SegReaderPending(p, iIndex, zTerm, nTerm, isPrefix||isScan, &pSeg);
+    if( rc==SQLITE_OK && pSeg ){
+      rc = fts3SegReaderCursorAppend(pCsr, pSeg);
+    }
+  }
+
+  if( iLevel!=FTS3_SEGCURSOR_PENDING ){
+    if( rc==SQLITE_OK ){
+      rc = sqlite3Fts3AllSegdirs(p, iLangid, iIndex, iLevel, &pStmt);
+    }
+
+    while( rc==SQLITE_OK && SQLITE_ROW==(rc = sqlite3_step(pStmt)) ){
+      Fts3SegReader *pSeg = 0;
+
+      /* Read the values returned by the SELECT into local variables. */
+      sqlite3_int64 iStartBlock = sqlite3_column_int64(pStmt, 1);
+      sqlite3_int64 iLeavesEndBlock = sqlite3_column_int64(pStmt, 2);
+      sqlite3_int64 iEndBlock = sqlite3_column_int64(pStmt, 3);
+      int nRoot = sqlite3_column_bytes(pStmt, 4);
+      char const *zRoot = sqlite3_column_blob(pStmt, 4);
+
+      /* If zTerm is not NULL, and this segment is not stored entirely on its
+      ** root node, the range of leaves scanned can be reduced. Do this. */
+      if( iStartBlock && zTerm && zRoot ){
+        sqlite3_int64 *pi = (isPrefix ? &iLeavesEndBlock : 0);
+        rc = fts3SelectLeaf(p, zTerm, nTerm, zRoot, nRoot, &iStartBlock, pi);
+        if( rc!=SQLITE_OK ) goto finished;
+        if( isPrefix==0 && isScan==0 ) iLeavesEndBlock = iStartBlock;
+      }
+ 
+      rc = sqlite3Fts3SegReaderNew(pCsr->nSegment+1, 
+          (isPrefix==0 && isScan==0),
+          iStartBlock, iLeavesEndBlock, 
+          iEndBlock, zRoot, nRoot, &pSeg
+      );
+      if( rc!=SQLITE_OK ) goto finished;
+      rc = fts3SegReaderCursorAppend(pCsr, pSeg);
+    }
+  }
+
+ finished:
+  rc2 = sqlite3_reset(pStmt);
+  if( rc==SQLITE_DONE ) rc = rc2;
+
+  return rc;
+}
+
+/*
+** Set up a cursor object for iterating through a full-text index or a 
+** single level therein.
+*/
+int sqlite3Fts3SegReaderCursor(
+  Fts3Table *p,                   /* FTS3 table handle */
+  int iLangid,                    /* Language-id to search */
+  int iIndex,                     /* Index to search (from 0 to p->nIndex-1) */
+  int iLevel,                     /* Level of segments to scan */
+  const char *zTerm,              /* Term to query for */
+  int nTerm,                      /* Size of zTerm in bytes */
+  int isPrefix,                   /* True for a prefix search */
+  int isScan,                     /* True to scan from zTerm to EOF */
+  Fts3MultiSegReader *pCsr       /* Cursor object to populate */
+){
+  assert( iIndex>=0 && iIndex<p->nIndex );
+  assert( iLevel==FTS3_SEGCURSOR_ALL
+      ||  iLevel==FTS3_SEGCURSOR_PENDING 
+      ||  iLevel>=0
+  );
+  assert( iLevel<FTS3_SEGDIR_MAXLEVEL );
+  assert( FTS3_SEGCURSOR_ALL<0 && FTS3_SEGCURSOR_PENDING<0 );
+  assert( isPrefix==0 || isScan==0 );
+
+  memset(pCsr, 0, sizeof(Fts3MultiSegReader));
+  return fts3SegReaderCursor(
+      p, iLangid, iIndex, iLevel, zTerm, nTerm, isPrefix, isScan, pCsr
+  );
+}
+
+/*
+** In addition to its current configuration, have the Fts3MultiSegReader
+** passed as the 4th argument also scan the doclist for term zTerm/nTerm.
+**
+** SQLITE_OK is returned if no error occurs, otherwise an SQLite error code.
+*/
+static int fts3SegReaderCursorAddZero(
+  Fts3Table *p,                   /* FTS virtual table handle */
+  int iLangid,
+  const char *zTerm,              /* Term to scan doclist of */
+  int nTerm,                      /* Number of bytes in zTerm */
+  Fts3MultiSegReader *pCsr        /* Fts3MultiSegReader to modify */
+){
+  return fts3SegReaderCursor(p, 
+      iLangid, 0, FTS3_SEGCURSOR_ALL, zTerm, nTerm, 0, 0,pCsr
+  );
+}
+
+/*
+** Open an Fts3MultiSegReader to scan the doclist for term zTerm/nTerm. Or,
+** if isPrefix is true, to scan the doclist for all terms for which 
+** zTerm/nTerm is a prefix. If successful, return SQLITE_OK and write
+** a pointer to the new Fts3MultiSegReader to *ppSegcsr. Otherwise, return
+** an SQLite error code.
+**
+** It is the responsibility of the caller to free this object by eventually
+** passing it to fts3SegReaderCursorFree() 
+**
+** SQLITE_OK is returned if no error occurs, otherwise an SQLite error code.
+** Output parameter *ppSegcsr is set to 0 if an error occurs.
+*/
+static int fts3TermSegReaderCursor(
+  Fts3Cursor *pCsr,               /* Virtual table cursor handle */
+  const char *zTerm,              /* Term to query for */
+  int nTerm,                      /* Size of zTerm in bytes */
+  int isPrefix,                   /* True for a prefix search */
+  Fts3MultiSegReader **ppSegcsr   /* OUT: Allocated seg-reader cursor */
+){
+  Fts3MultiSegReader *pSegcsr;    /* Object to allocate and return */
+  int rc = SQLITE_NOMEM;          /* Return code */
+
+  pSegcsr = sqlite3_malloc(sizeof(Fts3MultiSegReader));
+  if( pSegcsr ){
+    int i;
+    int bFound = 0;               /* True once an index has been found */
+    Fts3Table *p = (Fts3Table *)pCsr->base.pVtab;
+
+    if( isPrefix ){
+      for(i=1; bFound==0 && i<p->nIndex; i++){
+        if( p->aIndex[i].nPrefix==nTerm ){
+          bFound = 1;
+          rc = sqlite3Fts3SegReaderCursor(p, pCsr->iLangid, 
+              i, FTS3_SEGCURSOR_ALL, zTerm, nTerm, 0, 0, pSegcsr
+          );
+          pSegcsr->bLookup = 1;
+        }
+      }
+
+      for(i=1; bFound==0 && i<p->nIndex; i++){
+        if( p->aIndex[i].nPrefix==nTerm+1 ){
+          bFound = 1;
+          rc = sqlite3Fts3SegReaderCursor(p, pCsr->iLangid, 
+              i, FTS3_SEGCURSOR_ALL, zTerm, nTerm, 1, 0, pSegcsr
+          );
+          if( rc==SQLITE_OK ){
+            rc = fts3SegReaderCursorAddZero(
+                p, pCsr->iLangid, zTerm, nTerm, pSegcsr
+            );
+          }
+        }
+      }
+    }
+
+    if( bFound==0 ){
+      rc = sqlite3Fts3SegReaderCursor(p, pCsr->iLangid, 
+          0, FTS3_SEGCURSOR_ALL, zTerm, nTerm, isPrefix, 0, pSegcsr
+      );
+      pSegcsr->bLookup = !isPrefix;
+    }
+  }
+
+  *ppSegcsr = pSegcsr;
+  return rc;
+}
+
+/*
+** Free an Fts3MultiSegReader allocated by fts3TermSegReaderCursor().
+*/
+static void fts3SegReaderCursorFree(Fts3MultiSegReader *pSegcsr){
+  sqlite3Fts3SegReaderFinish(pSegcsr);
+  sqlite3_free(pSegcsr);
+}
+
+/*
+** This function retrieves the doclist for the specified term (or term
+** prefix) from the database.
+*/
+static int fts3TermSelect(
+  Fts3Table *p,                   /* Virtual table handle */
+  Fts3PhraseToken *pTok,          /* Token to query for */
+  int iColumn,                    /* Column to query (or -ve for all columns) */
+  int *pnOut,                     /* OUT: Size of buffer at *ppOut */
+  char **ppOut                    /* OUT: Malloced result buffer */
+){
+  int rc;                         /* Return code */
+  Fts3MultiSegReader *pSegcsr;    /* Seg-reader cursor for this term */
+  TermSelect tsc;                 /* Object for pair-wise doclist merging */
+  Fts3SegFilter filter;           /* Segment term filter configuration */
+
+  pSegcsr = pTok->pSegcsr;
+  memset(&tsc, 0, sizeof(TermSelect));
+
+  filter.flags = FTS3_SEGMENT_IGNORE_EMPTY | FTS3_SEGMENT_REQUIRE_POS
+        | (pTok->isPrefix ? FTS3_SEGMENT_PREFIX : 0)
+        | (pTok->bFirst ? FTS3_SEGMENT_FIRST : 0)
+        | (iColumn<p->nColumn ? FTS3_SEGMENT_COLUMN_FILTER : 0);
+  filter.iCol = iColumn;
+  filter.zTerm = pTok->z;
+  filter.nTerm = pTok->n;
+
+  rc = sqlite3Fts3SegReaderStart(p, pSegcsr, &filter);
+  while( SQLITE_OK==rc
+      && SQLITE_ROW==(rc = sqlite3Fts3SegReaderStep(p, pSegcsr)) 
+  ){
+    rc = fts3TermSelectMerge(p, &tsc, pSegcsr->aDoclist, pSegcsr->nDoclist);
+  }
+
+  if( rc==SQLITE_OK ){
+    rc = fts3TermSelectFinishMerge(p, &tsc);
+  }
+  if( rc==SQLITE_OK ){
+    *ppOut = tsc.aaOutput[0];
+    *pnOut = tsc.anOutput[0];
+  }else{
+    int i;
+    for(i=0; i<SizeofArray(tsc.aaOutput); i++){
+      sqlite3_free(tsc.aaOutput[i]);
+    }
+  }
+
+  fts3SegReaderCursorFree(pSegcsr);
+  pTok->pSegcsr = 0;
+  return rc;
+}
+
+/*
+** This function counts the total number of docids in the doclist stored
+** in buffer aList[], size nList bytes.
+**
+** If the isPoslist argument is true, then it is assumed that the doclist
+** contains a position-list following each docid. Otherwise, it is assumed
+** that the doclist is simply a list of docids stored as delta encoded 
+** varints.
+*/
+static int fts3DoclistCountDocids(char *aList, int nList){
+  int nDoc = 0;                   /* Return value */
+  if( aList ){
+    char *aEnd = &aList[nList];   /* Pointer to one byte after EOF */
+    char *p = aList;              /* Cursor */
+    while( p<aEnd ){
+      nDoc++;
+      while( (*p++)&0x80 );     /* Skip docid varint */
+      fts3PoslistCopy(0, &p);   /* Skip over position list */
+    }
+  }
+
+  return nDoc;
+}
+
+/*
+** Advance the cursor to the next row in the %_content table that
+** matches the search criteria.  For a MATCH search, this will be
+** the next row that matches. For a full-table scan, this will be
+** simply the next row in the %_content table.  For a docid lookup,
+** this routine simply sets the EOF flag.
+**
+** Return SQLITE_OK if nothing goes wrong.  SQLITE_OK is returned
+** even if we reach end-of-file.  The fts3EofMethod() will be called
+** subsequently to determine whether or not an EOF was hit.
+*/
+static int fts3NextMethod(sqlite3_vtab_cursor *pCursor){
+  int rc;
+  Fts3Cursor *pCsr = (Fts3Cursor *)pCursor;
+  if( pCsr->eSearch==FTS3_DOCID_SEARCH || pCsr->eSearch==FTS3_FULLSCAN_SEARCH ){
+    Fts3Table *pTab = (Fts3Table*)pCursor->pVtab;
+    pTab->bLock++;
+    if( SQLITE_ROW!=sqlite3_step(pCsr->pStmt) ){
+      pCsr->isEof = 1;
+      rc = sqlite3_reset(pCsr->pStmt);
+    }else{
+      pCsr->iPrevId = sqlite3_column_int64(pCsr->pStmt, 0);
+      rc = SQLITE_OK;
+    }
+    pTab->bLock--;
+  }else{
+    rc = fts3EvalNext((Fts3Cursor *)pCursor);
+  }
+  assert( ((Fts3Table *)pCsr->base.pVtab)->pSegments==0 );
+  return rc;
+}
+
+/*
+** If the numeric type of argument pVal is "integer", then return it
+** converted to a 64-bit signed integer. Otherwise, return a copy of
+** the second parameter, iDefault.
+*/
+static sqlite3_int64 fts3DocidRange(sqlite3_value *pVal, i64 iDefault){
+  if( pVal ){
+    int eType = sqlite3_value_numeric_type(pVal);
+    if( eType==SQLITE_INTEGER ){
+      return sqlite3_value_int64(pVal);
+    }
+  }
+  return iDefault;
+}
+
+/*
+** This is the xFilter interface for the virtual table.  See
+** the virtual table xFilter method documentation for additional
+** information.
+**
+** If idxNum==FTS3_FULLSCAN_SEARCH then do a full table scan against
+** the %_content table.
+**
+** If idxNum==FTS3_DOCID_SEARCH then do a docid lookup for a single entry
+** in the %_content table.
+**
+** If idxNum>=FTS3_FULLTEXT_SEARCH then use the full text index.  The
+** column on the left-hand side of the MATCH operator is column
+** number idxNum-FTS3_FULLTEXT_SEARCH, 0 indexed.  argv[0] is the right-hand
+** side of the MATCH operator.
+*/
+static int fts3FilterMethod(
+  sqlite3_vtab_cursor *pCursor,   /* The cursor used for this query */
+  int idxNum,                     /* Strategy index */
+  const char *idxStr,             /* Unused */
+  int nVal,                       /* Number of elements in apVal */
+  sqlite3_value **apVal           /* Arguments for the indexing scheme */
+){
+  int rc = SQLITE_OK;
+  char *zSql;                     /* SQL statement used to access %_content */
+  int eSearch;
+  Fts3Table *p = (Fts3Table *)pCursor->pVtab;
+  Fts3Cursor *pCsr = (Fts3Cursor *)pCursor;
+
+  sqlite3_value *pCons = 0;       /* The MATCH or rowid constraint, if any */
+  sqlite3_value *pLangid = 0;     /* The "langid = ?" constraint, if any */
+  sqlite3_value *pDocidGe = 0;    /* The "docid >= ?" constraint, if any */
+  sqlite3_value *pDocidLe = 0;    /* The "docid <= ?" constraint, if any */
+  int iIdx;
+
+  UNUSED_PARAMETER(idxStr);
+  UNUSED_PARAMETER(nVal);
+
+  if( p->bLock ){
+    return SQLITE_ERROR;
+  }
+
+  eSearch = (idxNum & 0x0000FFFF);
+  assert( eSearch>=0 && eSearch<=(FTS3_FULLTEXT_SEARCH+p->nColumn) );
+  assert( p->pSegments==0 );
+
+  /* Collect arguments into local variables */
+  iIdx = 0;
+  if( eSearch!=FTS3_FULLSCAN_SEARCH ) pCons = apVal[iIdx++];
+  if( idxNum & FTS3_HAVE_LANGID ) pLangid = apVal[iIdx++];
+  if( idxNum & FTS3_HAVE_DOCID_GE ) pDocidGe = apVal[iIdx++];
+  if( idxNum & FTS3_HAVE_DOCID_LE ) pDocidLe = apVal[iIdx++];
+  assert( iIdx==nVal );
+
+  /* In case the cursor has been used before, clear it now. */
+  fts3ClearCursor(pCsr);
+
+  /* Set the lower and upper bounds on docids to return */
+  pCsr->iMinDocid = fts3DocidRange(pDocidGe, SMALLEST_INT64);
+  pCsr->iMaxDocid = fts3DocidRange(pDocidLe, LARGEST_INT64);
+
+  if( idxStr ){
+    pCsr->bDesc = (idxStr[0]=='D');
+  }else{
+    pCsr->bDesc = p->bDescIdx;
+  }
+  pCsr->eSearch = (i16)eSearch;
+
+  if( eSearch!=FTS3_DOCID_SEARCH && eSearch!=FTS3_FULLSCAN_SEARCH ){
+    int iCol = eSearch-FTS3_FULLTEXT_SEARCH;
+    const char *zQuery = (const char *)sqlite3_value_text(pCons);
+
+    if( zQuery==0 && sqlite3_value_type(pCons)!=SQLITE_NULL ){
+      return SQLITE_NOMEM;
+    }
+
+    pCsr->iLangid = 0;
+    if( pLangid ) pCsr->iLangid = sqlite3_value_int(pLangid);
+
+    assert( p->base.zErrMsg==0 );
+    rc = sqlite3Fts3ExprParse(p->pTokenizer, pCsr->iLangid,
+        p->azColumn, p->bFts4, p->nColumn, iCol, zQuery, -1, &pCsr->pExpr, 
+        &p->base.zErrMsg
+    );
+    if( rc!=SQLITE_OK ){
+      return rc;
+    }
+
+    rc = fts3EvalStart(pCsr);
+    sqlite3Fts3SegmentsClose(p);
+    if( rc!=SQLITE_OK ) return rc;
+    pCsr->pNextId = pCsr->aDoclist;
+    pCsr->iPrevId = 0;
+  }
+
+  /* Compile a SELECT statement for this cursor. For a full-table-scan, the
+  ** statement loops through all rows of the %_content table. For a
+  ** full-text query or docid lookup, the statement retrieves a single
+  ** row by docid.
+  */
+  if( eSearch==FTS3_FULLSCAN_SEARCH ){
+    if( pDocidGe || pDocidLe ){
+      zSql = sqlite3_mprintf(
+          "SELECT %s WHERE rowid BETWEEN %lld AND %lld ORDER BY rowid %s",
+          p->zReadExprlist, pCsr->iMinDocid, pCsr->iMaxDocid,
+          (pCsr->bDesc ? "DESC" : "ASC")
+      );
+    }else{
+      zSql = sqlite3_mprintf("SELECT %s ORDER BY rowid %s", 
+          p->zReadExprlist, (pCsr->bDesc ? "DESC" : "ASC")
+      );
+    }
+    if( zSql ){
+      p->bLock++;
+      rc = sqlite3_prepare_v3(
+          p->db,zSql,-1,SQLITE_PREPARE_PERSISTENT,&pCsr->pStmt,0
+      );
+      p->bLock--;
+      sqlite3_free(zSql);
+    }else{
+      rc = SQLITE_NOMEM;
+    }
+  }else if( eSearch==FTS3_DOCID_SEARCH ){
+    rc = fts3CursorSeekStmt(pCsr);
+    if( rc==SQLITE_OK ){
+      rc = sqlite3_bind_value(pCsr->pStmt, 1, pCons);
+    }
+  }
+  if( rc!=SQLITE_OK ) return rc;
+
+  return fts3NextMethod(pCursor);
+}
+
+/* 
+** This is the xEof method of the virtual table. SQLite calls this 
+** routine to find out if it has reached the end of a result set.
+*/
+static int fts3EofMethod(sqlite3_vtab_cursor *pCursor){
+  Fts3Cursor *pCsr = (Fts3Cursor*)pCursor;
+  if( pCsr->isEof ){
+    fts3ClearCursor(pCsr);
+    pCsr->isEof = 1;
+  }
+  return pCsr->isEof;
+}
+
+/* 
+** This is the xRowid method. The SQLite core calls this routine to
+** retrieve the rowid for the current row of the result set. fts3
+** exposes %_content.docid as the rowid for the virtual table. The
+** rowid should be written to *pRowid.
+*/
+static int fts3RowidMethod(sqlite3_vtab_cursor *pCursor, sqlite_int64 *pRowid){
+  Fts3Cursor *pCsr = (Fts3Cursor *) pCursor;
+  *pRowid = pCsr->iPrevId;
+  return SQLITE_OK;
+}
+
+/* 
+** This is the xColumn method, called by SQLite to request a value from
+** the row that the supplied cursor currently points to.
+**
+** If:
+**
+**   (iCol <  p->nColumn)   -> The value of the iCol'th user column.
+**   (iCol == p->nColumn)   -> Magic column with the same name as the table.
+**   (iCol == p->nColumn+1) -> Docid column
+**   (iCol == p->nColumn+2) -> Langid column
+*/
+static int fts3ColumnMethod(
+  sqlite3_vtab_cursor *pCursor,   /* Cursor to retrieve value from */
+  sqlite3_context *pCtx,          /* Context for sqlite3_result_xxx() calls */
+  int iCol                        /* Index of column to read value from */
+){
+  int rc = SQLITE_OK;             /* Return Code */
+  Fts3Cursor *pCsr = (Fts3Cursor *) pCursor;
+  Fts3Table *p = (Fts3Table *)pCursor->pVtab;
+
+  /* The column value supplied by SQLite must be in range. */
+  assert( iCol>=0 && iCol<=p->nColumn+2 );
+
+  switch( iCol-p->nColumn ){
+    case 0:
+      /* The special 'table-name' column */
+      sqlite3_result_pointer(pCtx, pCsr, "fts3cursor", 0);
+      break;
+
+    case 1:
+      /* The docid column */
+      sqlite3_result_int64(pCtx, pCsr->iPrevId);
+      break;
+
+    case 2:
+      if( pCsr->pExpr ){
+        sqlite3_result_int64(pCtx, pCsr->iLangid);
+        break;
+      }else if( p->zLanguageid==0 ){
+        sqlite3_result_int(pCtx, 0);
+        break;
+      }else{
+        iCol = p->nColumn;
+        /* no break */ deliberate_fall_through
+      }
+
+    default:
+      /* A user column. Or, if this is a full-table scan, possibly the
+      ** language-id column. Seek the cursor. */
+      rc = fts3CursorSeek(0, pCsr);
+      if( rc==SQLITE_OK && sqlite3_data_count(pCsr->pStmt)-1>iCol ){
+        sqlite3_result_value(pCtx, sqlite3_column_value(pCsr->pStmt, iCol+1));
+      }
+      break;
+  }
+
+  assert( ((Fts3Table *)pCsr->base.pVtab)->pSegments==0 );
+  return rc;
+}
+
+/* 
+** This function is the implementation of the xUpdate callback used by 
+** FTS3 virtual tables. It is invoked by SQLite each time a row is to be
+** inserted, updated or deleted.
+*/
+static int fts3UpdateMethod(
+  sqlite3_vtab *pVtab,            /* Virtual table handle */
+  int nArg,                       /* Size of argument array */
+  sqlite3_value **apVal,          /* Array of arguments */
+  sqlite_int64 *pRowid            /* OUT: The affected (or effected) rowid */
+){
+  return sqlite3Fts3UpdateMethod(pVtab, nArg, apVal, pRowid);
+}
+
+/*
+** Implementation of xSync() method. Flush the contents of the pending-terms
+** hash-table to the database.
+*/
+static int fts3SyncMethod(sqlite3_vtab *pVtab){
+
+  /* Following an incremental-merge operation, assuming that the input
+  ** segments are not completely consumed (the usual case), they are updated
+  ** in place to remove the entries that have already been merged. This
+  ** involves updating the leaf block that contains the smallest unmerged
+  ** entry and each block (if any) between the leaf and the root node. So
+  ** if the height of the input segment b-trees is N, and input segments
+  ** are merged eight at a time, updating the input segments at the end
+  ** of an incremental-merge requires writing (8*(1+N)) blocks. N is usually
+  ** small - often between 0 and 2. So the overhead of the incremental
+  ** merge is somewhere between 8 and 24 blocks. To avoid this overhead
+  ** dwarfing the actual productive work accomplished, the incremental merge
+  ** is only attempted if it will write at least 64 leaf blocks. Hence
+  ** nMinMerge.
+  **
+  ** Of course, updating the input segments also involves deleting a bunch
+  ** of blocks from the segments table. But this is not considered overhead
+  ** as it would also be required by a crisis-merge that used the same input 
+  ** segments.
+  */
+  const u32 nMinMerge = 64;       /* Minimum amount of incr-merge work to do */
+
+  Fts3Table *p = (Fts3Table*)pVtab;
+  int rc;
+  i64 iLastRowid = sqlite3_last_insert_rowid(p->db);
+
+  rc = sqlite3Fts3PendingTermsFlush(p);
+  if( rc==SQLITE_OK 
+   && p->nLeafAdd>(nMinMerge/16) 
+   && p->nAutoincrmerge && p->nAutoincrmerge!=0xff
+  ){
+    int mxLevel = 0;              /* Maximum relative level value in db */
+    int A;                        /* Incr-merge parameter A */
+
+    rc = sqlite3Fts3MaxLevel(p, &mxLevel);
+    assert( rc==SQLITE_OK || mxLevel==0 );
+    A = p->nLeafAdd * mxLevel;
+    A += (A/2);
+    if( A>(int)nMinMerge ) rc = sqlite3Fts3Incrmerge(p, A, p->nAutoincrmerge);
+  }
+  sqlite3Fts3SegmentsClose(p);
+  sqlite3_set_last_insert_rowid(p->db, iLastRowid);
+  return rc;
+}
+
+/*
+** If it is currently unknown whether or not the FTS table has an %_stat
+** table (if p->bHasStat==2), attempt to determine this (set p->bHasStat
+** to 0 or 1). Return SQLITE_OK if successful, or an SQLite error code
+** if an error occurs.
+*/
+static int fts3SetHasStat(Fts3Table *p){
+  int rc = SQLITE_OK;
+  if( p->bHasStat==2 ){
+    char *zTbl = sqlite3_mprintf("%s_stat", p->zName);
+    if( zTbl ){
+      int res = sqlite3_table_column_metadata(p->db, p->zDb, zTbl, 0,0,0,0,0,0);
+      sqlite3_free(zTbl);
+      p->bHasStat = (res==SQLITE_OK);
+    }else{
+      rc = SQLITE_NOMEM;
+    }
+  }
+  return rc;
+}
+
+/*
+** Implementation of xBegin() method. 
+*/
+static int fts3BeginMethod(sqlite3_vtab *pVtab){
+  Fts3Table *p = (Fts3Table*)pVtab;
+  int rc;
+  UNUSED_PARAMETER(pVtab);
+  assert( p->pSegments==0 );
+  assert( p->nPendingData==0 );
+  assert( p->inTransaction!=1 );
+  p->nLeafAdd = 0;
+  rc = fts3SetHasStat(p);
+#ifdef SQLITE_DEBUG
+  if( rc==SQLITE_OK ){
+    p->inTransaction = 1;
+    p->mxSavepoint = -1;
+  }
+#endif
+  return rc;
+}
+
+/*
+** Implementation of xCommit() method. This is a no-op. The contents of
+** the pending-terms hash-table have already been flushed into the database
+** by fts3SyncMethod().
+*/
+static int fts3CommitMethod(sqlite3_vtab *pVtab){
+  TESTONLY( Fts3Table *p = (Fts3Table*)pVtab );
+  UNUSED_PARAMETER(pVtab);
+  assert( p->nPendingData==0 );
+  assert( p->inTransaction!=0 );
+  assert( p->pSegments==0 );
+  TESTONLY( p->inTransaction = 0 );
+  TESTONLY( p->mxSavepoint = -1; );
+  return SQLITE_OK;
+}
+
+/*
+** Implementation of xRollback(). Discard the contents of the pending-terms
+** hash-table. Any changes made to the database are reverted by SQLite.
+*/
+static int fts3RollbackMethod(sqlite3_vtab *pVtab){
+  Fts3Table *p = (Fts3Table*)pVtab;
+  sqlite3Fts3PendingTermsClear(p);
+  assert( p->inTransaction!=0 );
+  TESTONLY( p->inTransaction = 0 );
+  TESTONLY( p->mxSavepoint = -1; );
+  return SQLITE_OK;
+}
+
+/*
+** When called, *ppPoslist must point to the byte immediately following the
+** end of a position-list. i.e. ( (*ppPoslist)[-1]==POS_END ). This function
+** moves *ppPoslist so that it instead points to the first byte of the
+** same position list.
+*/
+static void fts3ReversePoslist(char *pStart, char **ppPoslist){
+  char *p = &(*ppPoslist)[-2];
+  char c = 0;
+
+  /* Skip backwards passed any trailing 0x00 bytes added by NearTrim() */
+  while( p>pStart && (c=*p--)==0 );
+
+  /* Search backwards for a varint with value zero (the end of the previous 
+  ** poslist). This is an 0x00 byte preceded by some byte that does not
+  ** have the 0x80 bit set.  */
+  while( p>pStart && (*p & 0x80) | c ){ 
+    c = *p--; 
+  }
+  assert( p==pStart || c==0 );
+
+  /* At this point p points to that preceding byte without the 0x80 bit
+  ** set. So to find the start of the poslist, skip forward 2 bytes then
+  ** over a varint. 
+  **
+  ** Normally. The other case is that p==pStart and the poslist to return
+  ** is the first in the doclist. In this case do not skip forward 2 bytes.
+  ** The second part of the if condition (c==0 && *ppPoslist>&p[2])
+  ** is required for cases where the first byte of a doclist and the
+  ** doclist is empty. For example, if the first docid is 10, a doclist
+  ** that begins with:
+  **
+  **   0x0A 0x00 <next docid delta varint>
+  */
+  if( p>pStart || (c==0 && *ppPoslist>&p[2]) ){ p = &p[2]; }
+  while( *p++&0x80 );
+  *ppPoslist = p;
+}
+
+/*
+** Helper function used by the implementation of the overloaded snippet(),
+** offsets() and optimize() SQL functions.
+**
+** If the value passed as the third argument is a blob of size
+** sizeof(Fts3Cursor*), then the blob contents are copied to the 
+** output variable *ppCsr and SQLITE_OK is returned. Otherwise, an error
+** message is written to context pContext and SQLITE_ERROR returned. The
+** string passed via zFunc is used as part of the error message.
+*/
+static int fts3FunctionArg(
+  sqlite3_context *pContext,      /* SQL function call context */
+  const char *zFunc,              /* Function name */
+  sqlite3_value *pVal,            /* argv[0] passed to function */
+  Fts3Cursor **ppCsr              /* OUT: Store cursor handle here */
+){
+  int rc;
+  *ppCsr = (Fts3Cursor*)sqlite3_value_pointer(pVal, "fts3cursor");
+  if( (*ppCsr)!=0 ){
+    rc = SQLITE_OK;
+  }else{
+    char *zErr = sqlite3_mprintf("illegal first argument to %s", zFunc);
+    sqlite3_result_error(pContext, zErr, -1);
+    sqlite3_free(zErr);
+    rc = SQLITE_ERROR;
+  }
+  return rc;
+}
+
+/*
+** Implementation of the snippet() function for FTS3
+*/
+static void fts3SnippetFunc(
+  sqlite3_context *pContext,      /* SQLite function call context */
+  int nVal,                       /* Size of apVal[] array */
+  sqlite3_value **apVal           /* Array of arguments */
+){
+  Fts3Cursor *pCsr;               /* Cursor handle passed through apVal[0] */
+  const char *zStart = "<b>";
+  const char *zEnd = "</b>";
+  const char *zEllipsis = "<b>...</b>";
+  int iCol = -1;
+  int nToken = 15;                /* Default number of tokens in snippet */
+
+  /* There must be at least one argument passed to this function (otherwise
+  ** the non-overloaded version would have been called instead of this one).
+  */
+  assert( nVal>=1 );
+
+  if( nVal>6 ){
+    sqlite3_result_error(pContext, 
+        "wrong number of arguments to function snippet()", -1);
+    return;
+  }
+  if( fts3FunctionArg(pContext, "snippet", apVal[0], &pCsr) ) return;
+
+  switch( nVal ){
+    case 6: nToken = sqlite3_value_int(apVal[5]);
+            /* no break */ deliberate_fall_through
+    case 5: iCol = sqlite3_value_int(apVal[4]);
+            /* no break */ deliberate_fall_through
+    case 4: zEllipsis = (const char*)sqlite3_value_text(apVal[3]);
+            /* no break */ deliberate_fall_through
+    case 3: zEnd = (const char*)sqlite3_value_text(apVal[2]);
+            /* no break */ deliberate_fall_through
+    case 2: zStart = (const char*)sqlite3_value_text(apVal[1]);
+  }
+  if( !zEllipsis || !zEnd || !zStart ){
+    sqlite3_result_error_nomem(pContext);
+  }else if( nToken==0 ){
+    sqlite3_result_text(pContext, "", -1, SQLITE_STATIC);
+  }else if( SQLITE_OK==fts3CursorSeek(pContext, pCsr) ){
+    sqlite3Fts3Snippet(pContext, pCsr, zStart, zEnd, zEllipsis, iCol, nToken);
+  }
+}
+
+/*
+** Implementation of the offsets() function for FTS3
+*/
+static void fts3OffsetsFunc(
+  sqlite3_context *pContext,      /* SQLite function call context */
+  int nVal,                       /* Size of argument array */
+  sqlite3_value **apVal           /* Array of arguments */
+){
+  Fts3Cursor *pCsr;               /* Cursor handle passed through apVal[0] */
+
+  UNUSED_PARAMETER(nVal);
+
+  assert( nVal==1 );
+  if( fts3FunctionArg(pContext, "offsets", apVal[0], &pCsr) ) return;
+  assert( pCsr );
+  if( SQLITE_OK==fts3CursorSeek(pContext, pCsr) ){
+    sqlite3Fts3Offsets(pContext, pCsr);
+  }
+}
+
+/* 
+** Implementation of the special optimize() function for FTS3. This 
+** function merges all segments in the database to a single segment.
+** Example usage is:
+**
+**   SELECT optimize(t) FROM t LIMIT 1;
+**
+** where 't' is the name of an FTS3 table.
+*/
+static void fts3OptimizeFunc(
+  sqlite3_context *pContext,      /* SQLite function call context */
+  int nVal,                       /* Size of argument array */
+  sqlite3_value **apVal           /* Array of arguments */
+){
+  int rc;                         /* Return code */
+  Fts3Table *p;                   /* Virtual table handle */
+  Fts3Cursor *pCursor;            /* Cursor handle passed through apVal[0] */
+
+  UNUSED_PARAMETER(nVal);
+
+  assert( nVal==1 );
+  if( fts3FunctionArg(pContext, "optimize", apVal[0], &pCursor) ) return;
+  p = (Fts3Table *)pCursor->base.pVtab;
+  assert( p );
+
+  rc = sqlite3Fts3Optimize(p);
+
+  switch( rc ){
+    case SQLITE_OK:
+      sqlite3_result_text(pContext, "Index optimized", -1, SQLITE_STATIC);
+      break;
+    case SQLITE_DONE:
+      sqlite3_result_text(pContext, "Index already optimal", -1, SQLITE_STATIC);
+      break;
+    default:
+      sqlite3_result_error_code(pContext, rc);
+      break;
+  }
+}
+
+/*
+** Implementation of the matchinfo() function for FTS3
+*/
+static void fts3MatchinfoFunc(
+  sqlite3_context *pContext,      /* SQLite function call context */
+  int nVal,                       /* Size of argument array */
+  sqlite3_value **apVal           /* Array of arguments */
+){
+  Fts3Cursor *pCsr;               /* Cursor handle passed through apVal[0] */
+  assert( nVal==1 || nVal==2 );
+  if( SQLITE_OK==fts3FunctionArg(pContext, "matchinfo", apVal[0], &pCsr) ){
+    const char *zArg = 0;
+    if( nVal>1 ){
+      zArg = (const char *)sqlite3_value_text(apVal[1]);
+    }
+    sqlite3Fts3Matchinfo(pContext, pCsr, zArg);
+  }
+}
+
+/*
+** This routine implements the xFindFunction method for the FTS3
+** virtual table.
+*/
+static int fts3FindFunctionMethod(
+  sqlite3_vtab *pVtab,            /* Virtual table handle */
+  int nArg,                       /* Number of SQL function arguments */
+  const char *zName,              /* Name of SQL function */
+  void (**pxFunc)(sqlite3_context*,int,sqlite3_value**), /* OUT: Result */
+  void **ppArg                    /* Unused */
+){
+  struct Overloaded {
+    const char *zName;
+    void (*xFunc)(sqlite3_context*,int,sqlite3_value**);
+  } aOverload[] = {
+    { "snippet", fts3SnippetFunc },
+    { "offsets", fts3OffsetsFunc },
+    { "optimize", fts3OptimizeFunc },
+    { "matchinfo", fts3MatchinfoFunc },
+  };
+  int i;                          /* Iterator variable */
+
+  UNUSED_PARAMETER(pVtab);
+  UNUSED_PARAMETER(nArg);
+  UNUSED_PARAMETER(ppArg);
+
+  for(i=0; i<SizeofArray(aOverload); i++){
+    if( strcmp(zName, aOverload[i].zName)==0 ){
+      *pxFunc = aOverload[i].xFunc;
+      return 1;
+    }
+  }
+
+  /* No function of the specified name was found. Return 0. */
+  return 0;
+}
+
+/*
+** Implementation of FTS3 xRename method. Rename an fts3 table.
+*/
+static int fts3RenameMethod(
+  sqlite3_vtab *pVtab,            /* Virtual table handle */
+  const char *zName               /* New name of table */
+){
+  Fts3Table *p = (Fts3Table *)pVtab;
+  sqlite3 *db = p->db;            /* Database connection */
+  int rc;                         /* Return Code */
+
+  /* At this point it must be known if the %_stat table exists or not.
+  ** So bHasStat may not be 2.  */
+  rc = fts3SetHasStat(p);
+  
+  /* As it happens, the pending terms table is always empty here. This is
+  ** because an "ALTER TABLE RENAME TABLE" statement inside a transaction 
+  ** always opens a savepoint transaction. And the xSavepoint() method 
+  ** flushes the pending terms table. But leave the (no-op) call to
+  ** PendingTermsFlush() in in case that changes.
+  */
+  assert( p->nPendingData==0 );
+  if( rc==SQLITE_OK ){
+    rc = sqlite3Fts3PendingTermsFlush(p);
+  }
+
+  p->bIgnoreSavepoint = 1;
+
+  if( p->zContentTbl==0 ){
+    fts3DbExec(&rc, db,
+      "ALTER TABLE %Q.'%q_content'  RENAME TO '%q_content';",
+      p->zDb, p->zName, zName
+    );
+  }
+
+  if( p->bHasDocsize ){
+    fts3DbExec(&rc, db,
+      "ALTER TABLE %Q.'%q_docsize'  RENAME TO '%q_docsize';",
+      p->zDb, p->zName, zName
+    );
+  }
+  if( p->bHasStat ){
+    fts3DbExec(&rc, db,
+      "ALTER TABLE %Q.'%q_stat'  RENAME TO '%q_stat';",
+      p->zDb, p->zName, zName
+    );
+  }
+  fts3DbExec(&rc, db,
+    "ALTER TABLE %Q.'%q_segments' RENAME TO '%q_segments';",
+    p->zDb, p->zName, zName
+  );
+  fts3DbExec(&rc, db,
+    "ALTER TABLE %Q.'%q_segdir'   RENAME TO '%q_segdir';",
+    p->zDb, p->zName, zName
+  );
+
+  p->bIgnoreSavepoint = 0;
+  return rc;
+}
+
+/*
+** The xSavepoint() method.
+**
+** Flush the contents of the pending-terms table to disk.
+*/
+static int fts3SavepointMethod(sqlite3_vtab *pVtab, int iSavepoint){
+  int rc = SQLITE_OK;
+  Fts3Table *pTab = (Fts3Table*)pVtab;
+  assert( pTab->inTransaction );
+  assert( pTab->mxSavepoint<=iSavepoint );
+  TESTONLY( pTab->mxSavepoint = iSavepoint );
+
+  if( pTab->bIgnoreSavepoint==0 ){
+    if( fts3HashCount(&pTab->aIndex[0].hPending)>0 ){
+      char *zSql = sqlite3_mprintf("INSERT INTO %Q.%Q(%Q) VALUES('flush')",
+          pTab->zDb, pTab->zName, pTab->zName
+          );
+      if( zSql ){
+        pTab->bIgnoreSavepoint = 1;
+        rc = sqlite3_exec(pTab->db, zSql, 0, 0, 0);
+        pTab->bIgnoreSavepoint = 0;
+        sqlite3_free(zSql);
+      }else{
+        rc = SQLITE_NOMEM;
+      }
+    }
+    if( rc==SQLITE_OK ){
+      pTab->iSavepoint = iSavepoint+1;
+    }
+  }
+  return rc;
+}
+
+/*
+** The xRelease() method.
+**
+** This is a no-op.
+*/
+static int fts3ReleaseMethod(sqlite3_vtab *pVtab, int iSavepoint){
+  Fts3Table *pTab = (Fts3Table*)pVtab;
+  assert( pTab->inTransaction );
+  assert( pTab->mxSavepoint >= iSavepoint );
+  TESTONLY( pTab->mxSavepoint = iSavepoint-1 );
+  pTab->iSavepoint = iSavepoint;
+  return SQLITE_OK;
+}
+
+/*
+** The xRollbackTo() method.
+**
+** Discard the contents of the pending terms table.
+*/
+static int fts3RollbackToMethod(sqlite3_vtab *pVtab, int iSavepoint){
+  Fts3Table *pTab = (Fts3Table*)pVtab;
+  UNUSED_PARAMETER(iSavepoint);
+  assert( pTab->inTransaction );
+  TESTONLY( pTab->mxSavepoint = iSavepoint );
+  if( (iSavepoint+1)<=pTab->iSavepoint ){
+    sqlite3Fts3PendingTermsClear(pTab);
+  }
+  return SQLITE_OK;
+}
+
+/*
+** Return true if zName is the extension on one of the shadow tables used
+** by this module.
+*/
+static int fts3ShadowName(const char *zName){
+  static const char *azName[] = {
+    "content", "docsize", "segdir", "segments", "stat", 
+  };
+  unsigned int i;
+  for(i=0; i<sizeof(azName)/sizeof(azName[0]); i++){
+    if( sqlite3_stricmp(zName, azName[i])==0 ) return 1;
+  }
+  return 0;
+}
+
+/*
+** Implementation of the xIntegrity() method on the FTS3/FTS4 virtual
+** table.
+*/
+static int fts3IntegrityMethod(
+  sqlite3_vtab *pVtab,      /* The virtual table to be checked */
+  const char *zSchema,      /* Name of schema in which pVtab lives */
+  const char *zTabname,     /* Name of the pVTab table */
+  int isQuick,              /* True if this is a quick_check */
+  char **pzErr              /* Write error message here */
+){
+  Fts3Table *p = (Fts3Table*)pVtab;
+  int rc = SQLITE_OK;
+  int bOk = 0;
+
+  UNUSED_PARAMETER(isQuick);
+  rc = sqlite3Fts3IntegrityCheck(p, &bOk);
+  assert( rc!=SQLITE_CORRUPT_VTAB );
+  if( rc==SQLITE_ERROR || (rc&0xFF)==SQLITE_CORRUPT ){
+    *pzErr = sqlite3_mprintf("unable to validate the inverted index for"
+                             " FTS%d table %s.%s: %s",
+                p->bFts4 ? 4 : 3, zSchema, zTabname, sqlite3_errstr(rc));
+    if( *pzErr ) rc = SQLITE_OK;
+  }else if( rc==SQLITE_OK && bOk==0 ){
+    *pzErr = sqlite3_mprintf("malformed inverted index for FTS%d table %s.%s",
+                p->bFts4 ? 4 : 3, zSchema, zTabname);
+    if( *pzErr==0 ) rc = SQLITE_NOMEM;
+  }
+  sqlite3Fts3SegmentsClose(p);
+  return rc;
+}
+
+
+
+static const sqlite3_module fts3Module = {
+  /* iVersion      */ 4,
+  /* xCreate       */ fts3CreateMethod,
+  /* xConnect      */ fts3ConnectMethod,
+  /* xBestIndex    */ fts3BestIndexMethod,
+  /* xDisconnect   */ fts3DisconnectMethod,
+  /* xDestroy      */ fts3DestroyMethod,
+  /* xOpen         */ fts3OpenMethod,
+  /* xClose        */ fts3CloseMethod,
+  /* xFilter       */ fts3FilterMethod,
+  /* xNext         */ fts3NextMethod,
+  /* xEof          */ fts3EofMethod,
+  /* xColumn       */ fts3ColumnMethod,
+  /* xRowid        */ fts3RowidMethod,
+  /* xUpdate       */ fts3UpdateMethod,
+  /* xBegin        */ fts3BeginMethod,
+  /* xSync         */ fts3SyncMethod,
+  /* xCommit       */ fts3CommitMethod,
+  /* xRollback     */ fts3RollbackMethod,
+  /* xFindFunction */ fts3FindFunctionMethod,
+  /* xRename */       fts3RenameMethod,
+  /* xSavepoint    */ fts3SavepointMethod,
+  /* xRelease      */ fts3ReleaseMethod,
+  /* xRollbackTo   */ fts3RollbackToMethod,
+  /* xShadowName   */ fts3ShadowName,
+  /* xIntegrity    */ fts3IntegrityMethod,
+};
+
+/*
+** This function is registered as the module destructor (called when an
+** FTS3 enabled database connection is closed). It frees the memory
+** allocated for the tokenizer hash table.
+*/
+static void hashDestroy(void *p){
+  Fts3HashWrapper *pHash = (Fts3HashWrapper *)p;
+  pHash->nRef--;
+  if( pHash->nRef<=0 ){
+    sqlite3Fts3HashClear(&pHash->hash);
+    sqlite3_free(pHash);
+  }
+}
+
+/*
+** The fts3 built-in tokenizers - "simple", "porter" and "icu"- are 
+** implemented in files fts3_tokenizer1.c, fts3_porter.c and fts3_icu.c
+** respectively. The following three forward declarations are for functions
+** declared in these files used to retrieve the respective implementations.
+**
+** Calling sqlite3Fts3SimpleTokenizerModule() sets the value pointed
+** to by the argument to point to the "simple" tokenizer implementation.
+** And so on.
+*/
+void sqlite3Fts3SimpleTokenizerModule(sqlite3_tokenizer_module const**ppModule);
+void sqlite3Fts3PorterTokenizerModule(sqlite3_tokenizer_module const**ppModule);
+#ifndef SQLITE_DISABLE_FTS3_UNICODE
+void sqlite3Fts3UnicodeTokenizer(sqlite3_tokenizer_module const**ppModule);
+#endif
+#ifdef SQLITE_ENABLE_ICU
+void sqlite3Fts3IcuTokenizerModule(sqlite3_tokenizer_module const**ppModule);
+#endif
+
+/*
+** Initialize the fts3 extension. If this extension is built as part
+** of the sqlite library, then this function is called directly by
+** SQLite. If fts3 is built as a dynamically loadable extension, this
+** function is called by the sqlite3_extension_init() entry point.
+*/
+int sqlite3Fts3Init(sqlite3 *db){
+  int rc = SQLITE_OK;
+  Fts3HashWrapper *pHash = 0;
+  const sqlite3_tokenizer_module *pSimple = 0;
+  const sqlite3_tokenizer_module *pPorter = 0;
+#ifndef SQLITE_DISABLE_FTS3_UNICODE
+  const sqlite3_tokenizer_module *pUnicode = 0;
+#endif
+
+#ifdef SQLITE_ENABLE_ICU
+  const sqlite3_tokenizer_module *pIcu = 0;
+  sqlite3Fts3IcuTokenizerModule(&pIcu);
+#endif
+
+#ifndef SQLITE_DISABLE_FTS3_UNICODE
+  sqlite3Fts3UnicodeTokenizer(&pUnicode);
+#endif
+
+#ifdef SQLITE_TEST
+  rc = sqlite3Fts3InitTerm(db);
+  if( rc!=SQLITE_OK ) return rc;
+#endif
+
+  rc = sqlite3Fts3InitAux(db);
+  if( rc!=SQLITE_OK ) return rc;
+
+  sqlite3Fts3SimpleTokenizerModule(&pSimple);
+  sqlite3Fts3PorterTokenizerModule(&pPorter);
+
+  /* Allocate and initialize the hash-table used to store tokenizers. */
+  pHash = sqlite3_malloc(sizeof(Fts3HashWrapper));
+  if( !pHash ){
+    rc = SQLITE_NOMEM;
+  }else{
+    sqlite3Fts3HashInit(&pHash->hash, FTS3_HASH_STRING, 1);
+    pHash->nRef = 0;
+  }
+
+  /* Load the built-in tokenizers into the hash table */
+  if( rc==SQLITE_OK ){
+    if( sqlite3Fts3HashInsert(&pHash->hash, "simple", 7, (void *)pSimple)
+     || sqlite3Fts3HashInsert(&pHash->hash, "porter", 7, (void *)pPorter) 
+
+#ifndef SQLITE_DISABLE_FTS3_UNICODE
+     || sqlite3Fts3HashInsert(&pHash->hash, "unicode61", 10, (void *)pUnicode) 
+#endif
+#ifdef SQLITE_ENABLE_ICU
+     || (pIcu && sqlite3Fts3HashInsert(&pHash->hash, "icu", 4, (void *)pIcu))
+#endif
+    ){
+      rc = SQLITE_NOMEM;
+    }
+  }
+
+#ifdef SQLITE_TEST
+  if( rc==SQLITE_OK ){
+    rc = sqlite3Fts3ExprInitTestInterface(db, &pHash->hash);
+  }
+#endif
+
+  /* Create the virtual table wrapper around the hash-table and overload 
+  ** the four scalar functions. If this is successful, register the
+  ** module with sqlite.
+  */
+  if( SQLITE_OK==rc 
+   && SQLITE_OK==(rc=sqlite3Fts3InitHashTable(db,&pHash->hash,"fts3_tokenizer"))
+   && SQLITE_OK==(rc = sqlite3_overload_function(db, "snippet", -1))
+   && SQLITE_OK==(rc = sqlite3_overload_function(db, "offsets", 1))
+   && SQLITE_OK==(rc = sqlite3_overload_function(db, "matchinfo", 1))
+   && SQLITE_OK==(rc = sqlite3_overload_function(db, "matchinfo", 2))
+   && SQLITE_OK==(rc = sqlite3_overload_function(db, "optimize", 1))
+  ){
+    pHash->nRef++;
+    rc = sqlite3_create_module_v2(
+        db, "fts3", &fts3Module, (void *)pHash, hashDestroy
+    );
+    if( rc==SQLITE_OK ){
+      pHash->nRef++;
+      rc = sqlite3_create_module_v2(
+          db, "fts4", &fts3Module, (void *)pHash, hashDestroy
+      );
+    }
+    if( rc==SQLITE_OK ){
+      pHash->nRef++;
+      rc = sqlite3Fts3InitTok(db, (void *)pHash, hashDestroy);
+    }
+    return rc;
+  }
+
+
+  /* An error has occurred. Delete the hash table and return the error code. */
+  assert( rc!=SQLITE_OK );
+  if( pHash ){
+    sqlite3Fts3HashClear(&pHash->hash);
+    sqlite3_free(pHash);
+  }
+  return rc;
+}
+
+/*
+** Allocate an Fts3MultiSegReader for each token in the expression headed
+** by pExpr. 
+**
+** An Fts3SegReader object is a cursor that can seek or scan a range of
+** entries within a single segment b-tree. An Fts3MultiSegReader uses multiple
+** Fts3SegReader objects internally to provide an interface to seek or scan
+** within the union of all segments of a b-tree. Hence the name.
+**
+** If the allocated Fts3MultiSegReader just seeks to a single entry in a
+** segment b-tree (if the term is not a prefix or it is a prefix for which
+** there exists prefix b-tree of the right length) then it may be traversed
+** and merged incrementally. Otherwise, it has to be merged into an in-memory 
+** doclist and then traversed.
+*/
+static void fts3EvalAllocateReaders(
+  Fts3Cursor *pCsr,               /* FTS cursor handle */
+  Fts3Expr *pExpr,                /* Allocate readers for this expression */
+  int *pnToken,                   /* OUT: Total number of tokens in phrase. */
+  int *pnOr,                      /* OUT: Total number of OR nodes in expr. */
+  int *pRc                        /* IN/OUT: Error code */
+){
+  if( pExpr && SQLITE_OK==*pRc ){
+    if( pExpr->eType==FTSQUERY_PHRASE ){
+      int i;
+      int nToken = pExpr->pPhrase->nToken;
+      *pnToken += nToken;
+      for(i=0; i<nToken; i++){
+        Fts3PhraseToken *pToken = &pExpr->pPhrase->aToken[i];
+        int rc = fts3TermSegReaderCursor(pCsr, 
+            pToken->z, pToken->n, pToken->isPrefix, &pToken->pSegcsr
+        );
+        if( rc!=SQLITE_OK ){
+          *pRc = rc;
+          return;
+        }
+      }
+      assert( pExpr->pPhrase->iDoclistToken==0 );
+      pExpr->pPhrase->iDoclistToken = -1;
+    }else{
+      *pnOr += (pExpr->eType==FTSQUERY_OR);
+      fts3EvalAllocateReaders(pCsr, pExpr->pLeft, pnToken, pnOr, pRc);
+      fts3EvalAllocateReaders(pCsr, pExpr->pRight, pnToken, pnOr, pRc);
+    }
+  }
+}
+
+/*
+** Arguments pList/nList contain the doclist for token iToken of phrase p.
+** It is merged into the main doclist stored in p->doclist.aAll/nAll.
+**
+** This function assumes that pList points to a buffer allocated using
+** sqlite3_malloc(). This function takes responsibility for eventually
+** freeing the buffer.
+**
+** SQLITE_OK is returned if successful, or SQLITE_NOMEM if an error occurs.
+*/
+static int fts3EvalPhraseMergeToken(
+  Fts3Table *pTab,                /* FTS Table pointer */
+  Fts3Phrase *p,                  /* Phrase to merge pList/nList into */
+  int iToken,                     /* Token pList/nList corresponds to */
+  char *pList,                    /* Pointer to doclist */
+  int nList                       /* Number of bytes in pList */
+){
+  int rc = SQLITE_OK;
+  assert( iToken!=p->iDoclistToken );
+
+  if( pList==0 ){
+    sqlite3_free(p->doclist.aAll);
+    p->doclist.aAll = 0;
+    p->doclist.nAll = 0;
+  }
+
+  else if( p->iDoclistToken<0 ){
+    p->doclist.aAll = pList;
+    p->doclist.nAll = nList;
+  }
+
+  else if( p->doclist.aAll==0 ){
+    sqlite3_free(pList);
+  }
+
+  else {
+    char *pLeft;
+    char *pRight;
+    int nLeft;
+    int nRight;
+    int nDiff;
+
+    if( p->iDoclistToken<iToken ){
+      pLeft = p->doclist.aAll;
+      nLeft = p->doclist.nAll;
+      pRight = pList;
+      nRight = nList;
+      nDiff = iToken - p->iDoclistToken;
+    }else{
+      pRight = p->doclist.aAll;
+      nRight = p->doclist.nAll;
+      pLeft = pList;
+      nLeft = nList;
+      nDiff = p->iDoclistToken - iToken;
+    }
+
+    rc = fts3DoclistPhraseMerge(
+        pTab->bDescIdx, nDiff, pLeft, nLeft, &pRight, &nRight
+    );
+    sqlite3_free(pLeft);
+    p->doclist.aAll = pRight;
+    p->doclist.nAll = nRight;
+  }
+
+  if( iToken>p->iDoclistToken ) p->iDoclistToken = iToken;
+  return rc;
+}
+
+/*
+** Load the doclist for phrase p into p->doclist.aAll/nAll. The loaded doclist
+** does not take deferred tokens into account.
+**
+** SQLITE_OK is returned if no error occurs, otherwise an SQLite error code.
+*/
+static int fts3EvalPhraseLoad(
+  Fts3Cursor *pCsr,               /* FTS Cursor handle */
+  Fts3Phrase *p                   /* Phrase object */
+){
+  Fts3Table *pTab = (Fts3Table *)pCsr->base.pVtab;
+  int iToken;
+  int rc = SQLITE_OK;
+
+  for(iToken=0; rc==SQLITE_OK && iToken<p->nToken; iToken++){
+    Fts3PhraseToken *pToken = &p->aToken[iToken];
+    assert( pToken->pDeferred==0 || pToken->pSegcsr==0 );
+
+    if( pToken->pSegcsr ){
+      int nThis = 0;
+      char *pThis = 0;
+      rc = fts3TermSelect(pTab, pToken, p->iColumn, &nThis, &pThis);
+      if( rc==SQLITE_OK ){
+        rc = fts3EvalPhraseMergeToken(pTab, p, iToken, pThis, nThis);
+      }
+    }
+    assert( pToken->pSegcsr==0 );
+  }
+
+  return rc;
+}
+
+#ifndef SQLITE_DISABLE_FTS4_DEFERRED
+/*
+** This function is called on each phrase after the position lists for
+** any deferred tokens have been loaded into memory. It updates the phrases
+** current position list to include only those positions that are really
+** instances of the phrase (after considering deferred tokens). If this
+** means that the phrase does not appear in the current row, doclist.pList
+** and doclist.nList are both zeroed.
+**
+** SQLITE_OK is returned if no error occurs, otherwise an SQLite error code.
+*/
+static int fts3EvalDeferredPhrase(Fts3Cursor *pCsr, Fts3Phrase *pPhrase){
+  int iToken;                     /* Used to iterate through phrase tokens */
+  char *aPoslist = 0;             /* Position list for deferred tokens */
+  int nPoslist = 0;               /* Number of bytes in aPoslist */
+  int iPrev = -1;                 /* Token number of previous deferred token */
+  char *aFree = (pPhrase->doclist.bFreeList ? pPhrase->doclist.pList : 0);
+
+  for(iToken=0; iToken<pPhrase->nToken; iToken++){
+    Fts3PhraseToken *pToken = &pPhrase->aToken[iToken];
+    Fts3DeferredToken *pDeferred = pToken->pDeferred;
+
+    if( pDeferred ){
+      char *pList;
+      int nList;
+      int rc = sqlite3Fts3DeferredTokenList(pDeferred, &pList, &nList);
+      if( rc!=SQLITE_OK ) return rc;
+
+      if( pList==0 ){
+        sqlite3_free(aPoslist);
+        sqlite3_free(aFree);
+        pPhrase->doclist.pList = 0;
+        pPhrase->doclist.nList = 0;
+        return SQLITE_OK;
+
+      }else if( aPoslist==0 ){
+        aPoslist = pList;
+        nPoslist = nList;
+
+      }else{
+        char *aOut = pList;
+        char *p1 = aPoslist;
+        char *p2 = aOut;
+
+        assert( iPrev>=0 );
+        fts3PoslistPhraseMerge(&aOut, iToken-iPrev, 0, 1, &p1, &p2);
+        sqlite3_free(aPoslist);
+        aPoslist = pList;
+        nPoslist = (int)(aOut - aPoslist);
+        if( nPoslist==0 ){
+          sqlite3_free(aPoslist);
+          sqlite3_free(aFree);
+          pPhrase->doclist.pList = 0;
+          pPhrase->doclist.nList = 0;
+          return SQLITE_OK;
+        }
+      }
+      iPrev = iToken;
+    }
+  }
+
+  if( iPrev>=0 ){
+    int nMaxUndeferred = pPhrase->iDoclistToken;
+    if( nMaxUndeferred<0 ){
+      pPhrase->doclist.pList = aPoslist;
+      pPhrase->doclist.nList = nPoslist;
+      pPhrase->doclist.iDocid = pCsr->iPrevId;
+      pPhrase->doclist.bFreeList = 1;
+    }else{
+      int nDistance;
+      char *p1;
+      char *p2;
+      char *aOut;
+
+      if( nMaxUndeferred>iPrev ){
+        p1 = aPoslist;
+        p2 = pPhrase->doclist.pList;
+        nDistance = nMaxUndeferred - iPrev;
+      }else{
+        p1 = pPhrase->doclist.pList;
+        p2 = aPoslist;
+        nDistance = iPrev - nMaxUndeferred;
+      }
+
+      aOut = (char *)sqlite3Fts3MallocZero(nPoslist+FTS3_BUFFER_PADDING);
+      if( !aOut ){
+        sqlite3_free(aPoslist);
+        return SQLITE_NOMEM;
+      }
+      
+      pPhrase->doclist.pList = aOut;
+      assert( p1 && p2 );
+      if( fts3PoslistPhraseMerge(&aOut, nDistance, 0, 1, &p1, &p2) ){
+        pPhrase->doclist.bFreeList = 1;
+        pPhrase->doclist.nList = (int)(aOut - pPhrase->doclist.pList);
+      }else{
+        sqlite3_free(aOut);
+        pPhrase->doclist.pList = 0;
+        pPhrase->doclist.nList = 0;
+      }
+      sqlite3_free(aPoslist);
+    }
+  }
+
+  if( pPhrase->doclist.pList!=aFree ) sqlite3_free(aFree);
+  return SQLITE_OK;
+}
+#endif /* SQLITE_DISABLE_FTS4_DEFERRED */
+
+/*
+** Maximum number of tokens a phrase may have to be considered for the
+** incremental doclists strategy.
+*/
+#define MAX_INCR_PHRASE_TOKENS 4
+
+/*
+** This function is called for each Fts3Phrase in a full-text query 
+** expression to initialize the mechanism for returning rows. Once this
+** function has been called successfully on an Fts3Phrase, it may be
+** used with fts3EvalPhraseNext() to iterate through the matching docids.
+**
+** If parameter bOptOk is true, then the phrase may (or may not) use the
+** incremental loading strategy. Otherwise, the entire doclist is loaded into
+** memory within this call.
+**
+** SQLITE_OK is returned if no error occurs, otherwise an SQLite error code.
+*/
+static int fts3EvalPhraseStart(Fts3Cursor *pCsr, int bOptOk, Fts3Phrase *p){
+  Fts3Table *pTab = (Fts3Table *)pCsr->base.pVtab;
+  int rc = SQLITE_OK;             /* Error code */
+  int i;
+
+  /* Determine if doclists may be loaded from disk incrementally. This is
+  ** possible if the bOptOk argument is true, the FTS doclists will be
+  ** scanned in forward order, and the phrase consists of 
+  ** MAX_INCR_PHRASE_TOKENS or fewer tokens, none of which are are "^first"
+  ** tokens or prefix tokens that cannot use a prefix-index.  */
+  int bHaveIncr = 0;
+  int bIncrOk = (bOptOk 
+   && pCsr->bDesc==pTab->bDescIdx 
+   && p->nToken<=MAX_INCR_PHRASE_TOKENS && p->nToken>0
+#if defined(SQLITE_DEBUG) || defined(SQLITE_TEST)
+   && pTab->bNoIncrDoclist==0
+#endif
+  );
+  for(i=0; bIncrOk==1 && i<p->nToken; i++){
+    Fts3PhraseToken *pToken = &p->aToken[i];
+    if( pToken->bFirst || (pToken->pSegcsr!=0 && !pToken->pSegcsr->bLookup) ){
+      bIncrOk = 0;
+    }
+    if( pToken->pSegcsr ) bHaveIncr = 1;
+  }
+
+  if( bIncrOk && bHaveIncr ){
+    /* Use the incremental approach. */
+    int iCol = (p->iColumn >= pTab->nColumn ? -1 : p->iColumn);
+    for(i=0; rc==SQLITE_OK && i<p->nToken; i++){
+      Fts3PhraseToken *pToken = &p->aToken[i];
+      Fts3MultiSegReader *pSegcsr = pToken->pSegcsr;
+      if( pSegcsr ){
+        rc = sqlite3Fts3MsrIncrStart(pTab, pSegcsr, iCol, pToken->z, pToken->n);
+      }
+    }
+    p->bIncr = 1;
+  }else{
+    /* Load the full doclist for the phrase into memory. */
+    rc = fts3EvalPhraseLoad(pCsr, p);
+    p->bIncr = 0;
+  }
+
+  assert( rc!=SQLITE_OK || p->nToken<1 || p->aToken[0].pSegcsr==0 || p->bIncr );
+  return rc;
+}
+
+/*
+** This function is used to iterate backwards (from the end to start) 
+** through doclists. It is used by this module to iterate through phrase
+** doclists in reverse and by the fts3_write.c module to iterate through
+** pending-terms lists when writing to databases with "order=desc".
+**
+** The doclist may be sorted in ascending (parameter bDescIdx==0) or 
+** descending (parameter bDescIdx==1) order of docid. Regardless, this
+** function iterates from the end of the doclist to the beginning.
+*/
+void sqlite3Fts3DoclistPrev(
+  int bDescIdx,                   /* True if the doclist is desc */
+  char *aDoclist,                 /* Pointer to entire doclist */
+  int nDoclist,                   /* Length of aDoclist in bytes */
+  char **ppIter,                  /* IN/OUT: Iterator pointer */
+  sqlite3_int64 *piDocid,         /* IN/OUT: Docid pointer */
+  int *pnList,                    /* OUT: List length pointer */
+  u8 *pbEof                       /* OUT: End-of-file flag */
+){
+  char *p = *ppIter;
+
+  assert( nDoclist>0 );
+  assert( *pbEof==0 );
+  assert_fts3_nc( p || *piDocid==0 );
+  assert( !p || (p>aDoclist && p<&aDoclist[nDoclist]) );
+
+  if( p==0 ){
+    sqlite3_int64 iDocid = 0;
+    char *pNext = 0;
+    char *pDocid = aDoclist;
+    char *pEnd = &aDoclist[nDoclist];
+    int iMul = 1;
+
+    while( pDocid<pEnd ){
+      sqlite3_int64 iDelta;
+      pDocid += sqlite3Fts3GetVarint(pDocid, &iDelta);
+      iDocid += (iMul * iDelta);
+      pNext = pDocid;
+      fts3PoslistCopy(0, &pDocid);
+      while( pDocid<pEnd && *pDocid==0 ) pDocid++;
+      iMul = (bDescIdx ? -1 : 1);
+    }
+
+    *pnList = (int)(pEnd - pNext);
+    *ppIter = pNext;
+    *piDocid = iDocid;
+  }else{
+    int iMul = (bDescIdx ? -1 : 1);
+    sqlite3_int64 iDelta;
+    fts3GetReverseVarint(&p, aDoclist, &iDelta);
+    *piDocid -= (iMul * iDelta);
+
+    if( p==aDoclist ){
+      *pbEof = 1;
+    }else{
+      char *pSave = p;
+      fts3ReversePoslist(aDoclist, &p);
+      *pnList = (int)(pSave - p);
+    }
+    *ppIter = p;
+  }
+}
+
+/*
+** Iterate forwards through a doclist.
+*/
+void sqlite3Fts3DoclistNext(
+  int bDescIdx,                   /* True if the doclist is desc */
+  char *aDoclist,                 /* Pointer to entire doclist */
+  int nDoclist,                   /* Length of aDoclist in bytes */
+  char **ppIter,                  /* IN/OUT: Iterator pointer */
+  sqlite3_int64 *piDocid,         /* IN/OUT: Docid pointer */
+  u8 *pbEof                       /* OUT: End-of-file flag */
+){
+  char *p = *ppIter;
+
+  assert( nDoclist>0 );
+  assert( *pbEof==0 );
+  assert_fts3_nc( p || *piDocid==0 );
+  assert( !p || (p>=aDoclist && p<=&aDoclist[nDoclist]) );
+
+  if( p==0 ){
+    p = aDoclist;
+    p += sqlite3Fts3GetVarint(p, piDocid);
+  }else{
+    fts3PoslistCopy(0, &p);
+    while( p<&aDoclist[nDoclist] && *p==0 ) p++; 
+    if( p>=&aDoclist[nDoclist] ){
+      *pbEof = 1;
+    }else{
+      sqlite3_int64 iVar;
+      p += sqlite3Fts3GetVarint(p, &iVar);
+      *piDocid += ((bDescIdx ? -1 : 1) * iVar);
+    }
+  }
+
+  *ppIter = p;
+}
+
+/*
+** Advance the iterator pDL to the next entry in pDL->aAll/nAll. Set *pbEof
+** to true if EOF is reached.
+*/
+static void fts3EvalDlPhraseNext(
+  Fts3Table *pTab,
+  Fts3Doclist *pDL,
+  u8 *pbEof
+){
+  char *pIter;                            /* Used to iterate through aAll */
+  char *pEnd;                             /* 1 byte past end of aAll */
+ 
+  if( pDL->pNextDocid ){
+    pIter = pDL->pNextDocid;
+    assert( pDL->aAll!=0 || pIter==0 );
+  }else{
+    pIter = pDL->aAll;
+  }
+
+  if( pIter==0 || pIter>=(pEnd = pDL->aAll + pDL->nAll) ){
+    /* We have already reached the end of this doclist. EOF. */
+    *pbEof = 1;
+  }else{
+    sqlite3_int64 iDelta;
+    pIter += sqlite3Fts3GetVarint(pIter, &iDelta);
+    if( pTab->bDescIdx==0 || pDL->pNextDocid==0 ){
+      pDL->iDocid += iDelta;
+    }else{
+      pDL->iDocid -= iDelta;
+    }
+    pDL->pList = pIter;
+    fts3PoslistCopy(0, &pIter);
+    pDL->nList = (int)(pIter - pDL->pList);
+
+    /* pIter now points just past the 0x00 that terminates the position-
+    ** list for document pDL->iDocid. However, if this position-list was
+    ** edited in place by fts3EvalNearTrim(), then pIter may not actually
+    ** point to the start of the next docid value. The following line deals
+    ** with this case by advancing pIter past the zero-padding added by
+    ** fts3EvalNearTrim().  */
+    while( pIter<pEnd && *pIter==0 ) pIter++;
+
+    pDL->pNextDocid = pIter;
+    assert( pIter>=&pDL->aAll[pDL->nAll] || *pIter );
+    *pbEof = 0;
+  }
+}
+
+/*
+** Helper type used by fts3EvalIncrPhraseNext() and incrPhraseTokenNext().
+*/
+typedef struct TokenDoclist TokenDoclist;
+struct TokenDoclist {
+  int bIgnore;
+  sqlite3_int64 iDocid;
+  char *pList;
+  int nList;
+};
+
+/*
+** Token pToken is an incrementally loaded token that is part of a 
+** multi-token phrase. Advance it to the next matching document in the
+** database and populate output variable *p with the details of the new
+** entry. Or, if the iterator has reached EOF, set *pbEof to true.
+**
+** If an error occurs, return an SQLite error code. Otherwise, return 
+** SQLITE_OK.
+*/
+static int incrPhraseTokenNext(
+  Fts3Table *pTab,                /* Virtual table handle */
+  Fts3Phrase *pPhrase,            /* Phrase to advance token of */
+  int iToken,                     /* Specific token to advance */
+  TokenDoclist *p,                /* OUT: Docid and doclist for new entry */
+  u8 *pbEof                       /* OUT: True if iterator is at EOF */
+){
+  int rc = SQLITE_OK;
+
+  if( pPhrase->iDoclistToken==iToken ){
+    assert( p->bIgnore==0 );
+    assert( pPhrase->aToken[iToken].pSegcsr==0 );
+    fts3EvalDlPhraseNext(pTab, &pPhrase->doclist, pbEof);
+    p->pList = pPhrase->doclist.pList;
+    p->nList = pPhrase->doclist.nList;
+    p->iDocid = pPhrase->doclist.iDocid;
+  }else{
+    Fts3PhraseToken *pToken = &pPhrase->aToken[iToken];
+    assert( pToken->pDeferred==0 );
+    assert( pToken->pSegcsr || pPhrase->iDoclistToken>=0 );
+    if( pToken->pSegcsr ){
+      assert( p->bIgnore==0 );
+      rc = sqlite3Fts3MsrIncrNext(
+          pTab, pToken->pSegcsr, &p->iDocid, &p->pList, &p->nList
+      );
+      if( p->pList==0 ) *pbEof = 1;
+    }else{
+      p->bIgnore = 1;
+    }
+  }
+
+  return rc;
+}
+
+
+/*
+** The phrase iterator passed as the second argument:
+**
+**   * features at least one token that uses an incremental doclist, and 
+**
+**   * does not contain any deferred tokens.
+**
+** Advance it to the next matching documnent in the database and populate
+** the Fts3Doclist.pList and nList fields. 
+**
+** If there is no "next" entry and no error occurs, then *pbEof is set to
+** 1 before returning. Otherwise, if no error occurs and the iterator is
+** successfully advanced, *pbEof is set to 0.
+**
+** If an error occurs, return an SQLite error code. Otherwise, return 
+** SQLITE_OK.
+*/
+static int fts3EvalIncrPhraseNext(
+  Fts3Cursor *pCsr,               /* FTS Cursor handle */
+  Fts3Phrase *p,                  /* Phrase object to advance to next docid */
+  u8 *pbEof                       /* OUT: Set to 1 if EOF */
+){
+  int rc = SQLITE_OK;
+  Fts3Doclist *pDL = &p->doclist;
+  Fts3Table *pTab = (Fts3Table *)pCsr->base.pVtab;
+  u8 bEof = 0;
+
+  /* This is only called if it is guaranteed that the phrase has at least
+  ** one incremental token. In which case the bIncr flag is set. */
+  assert( p->bIncr==1 );
+
+  if( p->nToken==1 ){
+    rc = sqlite3Fts3MsrIncrNext(pTab, p->aToken[0].pSegcsr, 
+        &pDL->iDocid, &pDL->pList, &pDL->nList
+    );
+    if( pDL->pList==0 ) bEof = 1;
+  }else{
+    int bDescDoclist = pCsr->bDesc;
+    struct TokenDoclist a[MAX_INCR_PHRASE_TOKENS];
+
+    memset(a, 0, sizeof(a));
+    assert( p->nToken<=MAX_INCR_PHRASE_TOKENS );
+    assert( p->iDoclistToken<MAX_INCR_PHRASE_TOKENS );
+
+    while( bEof==0 ){
+      int bMaxSet = 0;
+      sqlite3_int64 iMax = 0;     /* Largest docid for all iterators */
+      int i;                      /* Used to iterate through tokens */
+
+      /* Advance the iterator for each token in the phrase once. */
+      for(i=0; rc==SQLITE_OK && i<p->nToken && bEof==0; i++){
+        rc = incrPhraseTokenNext(pTab, p, i, &a[i], &bEof);
+        if( a[i].bIgnore==0 && (bMaxSet==0 || DOCID_CMP(iMax, a[i].iDocid)<0) ){
+          iMax = a[i].iDocid;
+          bMaxSet = 1;
+        }
+      }
+      assert( rc!=SQLITE_OK || (p->nToken>=1 && a[p->nToken-1].bIgnore==0) );
+      assert( rc!=SQLITE_OK || bMaxSet );
+
+      /* Keep advancing iterators until they all point to the same document */
+      for(i=0; i<p->nToken; i++){
+        while( rc==SQLITE_OK && bEof==0 
+            && a[i].bIgnore==0 && DOCID_CMP(a[i].iDocid, iMax)<0 
+        ){
+          rc = incrPhraseTokenNext(pTab, p, i, &a[i], &bEof);
+          if( DOCID_CMP(a[i].iDocid, iMax)>0 ){
+            iMax = a[i].iDocid;
+            i = 0;
+          }
+        }
+      }
+
+      /* Check if the current entries really are a phrase match */
+      if( bEof==0 ){
+        int nList = 0;
+        int nByte = a[p->nToken-1].nList;
+        char *aDoclist = sqlite3_malloc64((i64)nByte+FTS3_BUFFER_PADDING);
+        if( !aDoclist ) return SQLITE_NOMEM;
+        memcpy(aDoclist, a[p->nToken-1].pList, nByte+1);
+        memset(&aDoclist[nByte], 0, FTS3_BUFFER_PADDING);
+
+        for(i=0; i<(p->nToken-1); i++){
+          if( a[i].bIgnore==0 ){
+            char *pL = a[i].pList;
+            char *pR = aDoclist;
+            char *pOut = aDoclist;
+            int nDist = p->nToken-1-i;
+            int res = fts3PoslistPhraseMerge(&pOut, nDist, 0, 1, &pL, &pR);
+            if( res==0 ) break;
+            nList = (int)(pOut - aDoclist);
+          }
+        }
+        if( i==(p->nToken-1) ){
+          pDL->iDocid = iMax;
+          pDL->pList = aDoclist;
+          pDL->nList = nList;
+          pDL->bFreeList = 1;
+          break;
+        }
+        sqlite3_free(aDoclist);
+      }
+    }
+  }
+
+  *pbEof = bEof;
+  return rc;
+}
+
+/*
+** Attempt to move the phrase iterator to point to the next matching docid. 
+** If an error occurs, return an SQLite error code. Otherwise, return 
+** SQLITE_OK.
+**
+** If there is no "next" entry and no error occurs, then *pbEof is set to
+** 1 before returning. Otherwise, if no error occurs and the iterator is
+** successfully advanced, *pbEof is set to 0.
+*/
+static int fts3EvalPhraseNext(
+  Fts3Cursor *pCsr,               /* FTS Cursor handle */
+  Fts3Phrase *p,                  /* Phrase object to advance to next docid */
+  u8 *pbEof                       /* OUT: Set to 1 if EOF */
+){
+  int rc = SQLITE_OK;
+  Fts3Doclist *pDL = &p->doclist;
+  Fts3Table *pTab = (Fts3Table *)pCsr->base.pVtab;
+
+  if( p->bIncr ){
+    rc = fts3EvalIncrPhraseNext(pCsr, p, pbEof);
+  }else if( pCsr->bDesc!=pTab->bDescIdx && pDL->nAll ){
+    sqlite3Fts3DoclistPrev(pTab->bDescIdx, pDL->aAll, pDL->nAll, 
+        &pDL->pNextDocid, &pDL->iDocid, &pDL->nList, pbEof
+    );
+    pDL->pList = pDL->pNextDocid;
+  }else{
+    fts3EvalDlPhraseNext(pTab, pDL, pbEof);
+  }
+
+  return rc;
+}
+
+/*
+**
+** If *pRc is not SQLITE_OK when this function is called, it is a no-op.
+** Otherwise, fts3EvalPhraseStart() is called on all phrases within the
+** expression. Also the Fts3Expr.bDeferred variable is set to true for any
+** expressions for which all descendent tokens are deferred.
+**
+** If parameter bOptOk is zero, then it is guaranteed that the
+** Fts3Phrase.doclist.aAll/nAll variables contain the entire doclist for
+** each phrase in the expression (subject to deferred token processing).
+** Or, if bOptOk is non-zero, then one or more tokens within the expression
+** may be loaded incrementally, meaning doclist.aAll/nAll is not available.
+**
+** If an error occurs within this function, *pRc is set to an SQLite error
+** code before returning.
+*/
+static void fts3EvalStartReaders(
+  Fts3Cursor *pCsr,               /* FTS Cursor handle */
+  Fts3Expr *pExpr,                /* Expression to initialize phrases in */
+  int *pRc                        /* IN/OUT: Error code */
+){
+  if( pExpr && SQLITE_OK==*pRc ){
+    if( pExpr->eType==FTSQUERY_PHRASE ){
+      int nToken = pExpr->pPhrase->nToken;
+      if( nToken ){
+        int i;
+        for(i=0; i<nToken; i++){
+          if( pExpr->pPhrase->aToken[i].pDeferred==0 ) break;
+        }
+        pExpr->bDeferred = (i==nToken);
+      }
+      *pRc = fts3EvalPhraseStart(pCsr, 1, pExpr->pPhrase);
+    }else{
+      fts3EvalStartReaders(pCsr, pExpr->pLeft, pRc);
+      fts3EvalStartReaders(pCsr, pExpr->pRight, pRc);
+      pExpr->bDeferred = (pExpr->pLeft->bDeferred && pExpr->pRight->bDeferred);
+    }
+  }
+}
+
+/*
+** An array of the following structures is assembled as part of the process
+** of selecting tokens to defer before the query starts executing (as part
+** of the xFilter() method). There is one element in the array for each
+** token in the FTS expression.
+**
+** Tokens are divided into AND/NEAR clusters. All tokens in a cluster belong
+** to phrases that are connected only by AND and NEAR operators (not OR or
+** NOT). When determining tokens to defer, each AND/NEAR cluster is considered
+** separately. The root of a tokens AND/NEAR cluster is stored in 
+** Fts3TokenAndCost.pRoot.
+*/
+typedef struct Fts3TokenAndCost Fts3TokenAndCost;
+struct Fts3TokenAndCost {
+  Fts3Phrase *pPhrase;            /* The phrase the token belongs to */
+  int iToken;                     /* Position of token in phrase */
+  Fts3PhraseToken *pToken;        /* The token itself */
+  Fts3Expr *pRoot;                /* Root of NEAR/AND cluster */
+  int nOvfl;                      /* Number of overflow pages to load doclist */
+  int iCol;                       /* The column the token must match */
+};
+
+/*
+** This function is used to populate an allocated Fts3TokenAndCost array.
+**
+** If *pRc is not SQLITE_OK when this function is called, it is a no-op.
+** Otherwise, if an error occurs during execution, *pRc is set to an
+** SQLite error code.
+*/
+static void fts3EvalTokenCosts(
+  Fts3Cursor *pCsr,               /* FTS Cursor handle */
+  Fts3Expr *pRoot,                /* Root of current AND/NEAR cluster */
+  Fts3Expr *pExpr,                /* Expression to consider */
+  Fts3TokenAndCost **ppTC,        /* Write new entries to *(*ppTC)++ */
+  Fts3Expr ***ppOr,               /* Write new OR root to *(*ppOr)++ */
+  int *pRc                        /* IN/OUT: Error code */
+){
+  if( *pRc==SQLITE_OK ){
+    if( pExpr->eType==FTSQUERY_PHRASE ){
+      Fts3Phrase *pPhrase = pExpr->pPhrase;
+      int i;
+      for(i=0; *pRc==SQLITE_OK && i<pPhrase->nToken; i++){
+        Fts3TokenAndCost *pTC = (*ppTC)++;
+        pTC->pPhrase = pPhrase;
+        pTC->iToken = i;
+        pTC->pRoot = pRoot;
+        pTC->pToken = &pPhrase->aToken[i];
+        pTC->iCol = pPhrase->iColumn;
+        *pRc = sqlite3Fts3MsrOvfl(pCsr, pTC->pToken->pSegcsr, &pTC->nOvfl);
+      }
+    }else if( pExpr->eType!=FTSQUERY_NOT ){
+      assert( pExpr->eType==FTSQUERY_OR
+           || pExpr->eType==FTSQUERY_AND
+           || pExpr->eType==FTSQUERY_NEAR
+      );
+      assert( pExpr->pLeft && pExpr->pRight );
+      if( pExpr->eType==FTSQUERY_OR ){
+        pRoot = pExpr->pLeft;
+        **ppOr = pRoot;
+        (*ppOr)++;
+      }
+      fts3EvalTokenCosts(pCsr, pRoot, pExpr->pLeft, ppTC, ppOr, pRc);
+      if( pExpr->eType==FTSQUERY_OR ){
+        pRoot = pExpr->pRight;
+        **ppOr = pRoot;
+        (*ppOr)++;
+      }
+      fts3EvalTokenCosts(pCsr, pRoot, pExpr->pRight, ppTC, ppOr, pRc);
+    }
+  }
+}
+
+/*
+** Determine the average document (row) size in pages. If successful,
+** write this value to *pnPage and return SQLITE_OK. Otherwise, return
+** an SQLite error code.
+**
+** The average document size in pages is calculated by first calculating 
+** determining the average size in bytes, B. If B is less than the amount
+** of data that will fit on a single leaf page of an intkey table in
+** this database, then the average docsize is 1. Otherwise, it is 1 plus
+** the number of overflow pages consumed by a record B bytes in size.
+*/
+static int fts3EvalAverageDocsize(Fts3Cursor *pCsr, int *pnPage){
+  int rc = SQLITE_OK;
+  if( pCsr->nRowAvg==0 ){
+    /* The average document size, which is required to calculate the cost
+    ** of each doclist, has not yet been determined. Read the required 
+    ** data from the %_stat table to calculate it.
+    **
+    ** Entry 0 of the %_stat table is a blob containing (nCol+1) FTS3 
+    ** varints, where nCol is the number of columns in the FTS3 table.
+    ** The first varint is the number of documents currently stored in
+    ** the table. The following nCol varints contain the total amount of
+    ** data stored in all rows of each column of the table, from left
+    ** to right.
+    */
+    Fts3Table *p = (Fts3Table*)pCsr->base.pVtab;
+    sqlite3_stmt *pStmt;
+    sqlite3_int64 nDoc = 0;
+    sqlite3_int64 nByte = 0;
+    const char *pEnd;
+    const char *a;
+
+    rc = sqlite3Fts3SelectDoctotal(p, &pStmt);
+    if( rc!=SQLITE_OK ) return rc;
+    a = sqlite3_column_blob(pStmt, 0);
+    testcase( a==0 );  /* If %_stat.value set to X'' */
+    if( a ){
+      pEnd = &a[sqlite3_column_bytes(pStmt, 0)];
+      a += sqlite3Fts3GetVarintBounded(a, pEnd, &nDoc);
+      while( a<pEnd ){
+        a += sqlite3Fts3GetVarintBounded(a, pEnd, &nByte);
+      }
+    }
+    if( nDoc==0 || nByte==0 ){
+      sqlite3_reset(pStmt);
+      return FTS_CORRUPT_VTAB;
+    }
+
+    pCsr->nDoc = nDoc;
+    pCsr->nRowAvg = (int)(((nByte / nDoc) + p->nPgsz) / p->nPgsz);
+    assert( pCsr->nRowAvg>0 ); 
+    rc = sqlite3_reset(pStmt);
+  }
+
+  *pnPage = pCsr->nRowAvg;
+  return rc;
+}
+
+/*
+** This function is called to select the tokens (if any) that will be 
+** deferred. The array aTC[] has already been populated when this is
+** called.
+**
+** This function is called once for each AND/NEAR cluster in the 
+** expression. Each invocation determines which tokens to defer within
+** the cluster with root node pRoot. See comments above the definition
+** of struct Fts3TokenAndCost for more details.
+**
+** If no error occurs, SQLITE_OK is returned and sqlite3Fts3DeferToken()
+** called on each token to defer. Otherwise, an SQLite error code is
+** returned.
+*/
+static int fts3EvalSelectDeferred(
+  Fts3Cursor *pCsr,               /* FTS Cursor handle */
+  Fts3Expr *pRoot,                /* Consider tokens with this root node */
+  Fts3TokenAndCost *aTC,          /* Array of expression tokens and costs */
+  int nTC                         /* Number of entries in aTC[] */
+){
+  Fts3Table *pTab = (Fts3Table *)pCsr->base.pVtab;
+  int nDocSize = 0;               /* Number of pages per doc loaded */
+  int rc = SQLITE_OK;             /* Return code */
+  int ii;                         /* Iterator variable for various purposes */
+  int nOvfl = 0;                  /* Total overflow pages used by doclists */
+  int nToken = 0;                 /* Total number of tokens in cluster */
+
+  int nMinEst = 0;                /* The minimum count for any phrase so far. */
+  int nLoad4 = 1;                 /* (Phrases that will be loaded)^4. */
+
+  /* Tokens are never deferred for FTS tables created using the content=xxx
+  ** option. The reason being that it is not guaranteed that the content
+  ** table actually contains the same data as the index. To prevent this from
+  ** causing any problems, the deferred token optimization is completely
+  ** disabled for content=xxx tables. */
+  if( pTab->zContentTbl ){
+    return SQLITE_OK;
+  }
+
+  /* Count the tokens in this AND/NEAR cluster. If none of the doclists
+  ** associated with the tokens spill onto overflow pages, or if there is
+  ** only 1 token, exit early. No tokens to defer in this case. */
+  for(ii=0; ii<nTC; ii++){
+    if( aTC[ii].pRoot==pRoot ){
+      nOvfl += aTC[ii].nOvfl;
+      nToken++;
+    }
+  }
+  if( nOvfl==0 || nToken<2 ) return SQLITE_OK;
+
+  /* Obtain the average docsize (in pages). */
+  rc = fts3EvalAverageDocsize(pCsr, &nDocSize);
+  assert( rc!=SQLITE_OK || nDocSize>0 );
+
+
+  /* Iterate through all tokens in this AND/NEAR cluster, in ascending order 
+  ** of the number of overflow pages that will be loaded by the pager layer 
+  ** to retrieve the entire doclist for the token from the full-text index.
+  ** Load the doclists for tokens that are either:
+  **
+  **   a. The cheapest token in the entire query (i.e. the one visited by the
+  **      first iteration of this loop), or
+  **
+  **   b. Part of a multi-token phrase.
+  **
+  ** After each token doclist is loaded, merge it with the others from the
+  ** same phrase and count the number of documents that the merged doclist
+  ** contains. Set variable "nMinEst" to the smallest number of documents in 
+  ** any phrase doclist for which 1 or more token doclists have been loaded.
+  ** Let nOther be the number of other phrases for which it is certain that
+  ** one or more tokens will not be deferred.
+  **
+  ** Then, for each token, defer it if loading the doclist would result in
+  ** loading N or more overflow pages into memory, where N is computed as:
+  **
+  **    (nMinEst + 4^nOther - 1) / (4^nOther)
+  */
+  for(ii=0; ii<nToken && rc==SQLITE_OK; ii++){
+    int iTC;                      /* Used to iterate through aTC[] array. */
+    Fts3TokenAndCost *pTC = 0;    /* Set to cheapest remaining token. */
+
+    /* Set pTC to point to the cheapest remaining token. */
+    for(iTC=0; iTC<nTC; iTC++){
+      if( aTC[iTC].pToken && aTC[iTC].pRoot==pRoot 
+       && (!pTC || aTC[iTC].nOvfl<pTC->nOvfl) 
+      ){
+        pTC = &aTC[iTC];
+      }
+    }
+    assert( pTC );
+
+    if( ii && pTC->nOvfl>=((nMinEst+(nLoad4/4)-1)/(nLoad4/4))*nDocSize ){
+      /* The number of overflow pages to load for this (and therefore all
+      ** subsequent) tokens is greater than the estimated number of pages 
+      ** that will be loaded if all subsequent tokens are deferred.
+      */
+      Fts3PhraseToken *pToken = pTC->pToken;
+      rc = sqlite3Fts3DeferToken(pCsr, pToken, pTC->iCol);
+      fts3SegReaderCursorFree(pToken->pSegcsr);
+      pToken->pSegcsr = 0;
+    }else{
+      /* Set nLoad4 to the value of (4^nOther) for the next iteration of the
+      ** for-loop. Except, limit the value to 2^24 to prevent it from 
+      ** overflowing the 32-bit integer it is stored in. */
+      if( ii<12 ) nLoad4 = nLoad4*4;
+
+      if( ii==0 || (pTC->pPhrase->nToken>1 && ii!=nToken-1) ){
+        /* Either this is the cheapest token in the entire query, or it is
+        ** part of a multi-token phrase. Either way, the entire doclist will
+        ** (eventually) be loaded into memory. It may as well be now. */
+        Fts3PhraseToken *pToken = pTC->pToken;
+        int nList = 0;
+        char *pList = 0;
+        rc = fts3TermSelect(pTab, pToken, pTC->iCol, &nList, &pList);
+        assert( rc==SQLITE_OK || pList==0 );
+        if( rc==SQLITE_OK ){
+          rc = fts3EvalPhraseMergeToken(
+              pTab, pTC->pPhrase, pTC->iToken,pList,nList
+          );
+        }
+        if( rc==SQLITE_OK ){
+          int nCount;
+          nCount = fts3DoclistCountDocids(
+              pTC->pPhrase->doclist.aAll, pTC->pPhrase->doclist.nAll
+          );
+          if( ii==0 || nCount<nMinEst ) nMinEst = nCount;
+        }
+      }
+    }
+    pTC->pToken = 0;
+  }
+
+  return rc;
+}
+
+/*
+** This function is called from within the xFilter method. It initializes
+** the full-text query currently stored in pCsr->pExpr. To iterate through
+** the results of a query, the caller does:
+**
+**    fts3EvalStart(pCsr);
+**    while( 1 ){
+**      fts3EvalNext(pCsr);
+**      if( pCsr->bEof ) break;
+**      ... return row pCsr->iPrevId to the caller ...
+**    }
+*/
+static int fts3EvalStart(Fts3Cursor *pCsr){
+  Fts3Table *pTab = (Fts3Table *)pCsr->base.pVtab;
+  int rc = SQLITE_OK;
+  int nToken = 0;
+  int nOr = 0;
+
+  /* Allocate a MultiSegReader for each token in the expression. */
+  fts3EvalAllocateReaders(pCsr, pCsr->pExpr, &nToken, &nOr, &rc);
+
+  /* Determine which, if any, tokens in the expression should be deferred. */
+#ifndef SQLITE_DISABLE_FTS4_DEFERRED
+  if( rc==SQLITE_OK && nToken>1 && pTab->bFts4 ){
+    Fts3TokenAndCost *aTC;
+    aTC = (Fts3TokenAndCost *)sqlite3_malloc64(
+        sizeof(Fts3TokenAndCost) * nToken
+      + sizeof(Fts3Expr *) * nOr * 2
+    );
+
+    if( !aTC ){
+      rc = SQLITE_NOMEM;
+    }else{
+      Fts3Expr **apOr = (Fts3Expr **)&aTC[nToken];
+      int ii;
+      Fts3TokenAndCost *pTC = aTC;
+      Fts3Expr **ppOr = apOr;
+
+      fts3EvalTokenCosts(pCsr, 0, pCsr->pExpr, &pTC, &ppOr, &rc);
+      nToken = (int)(pTC-aTC);
+      nOr = (int)(ppOr-apOr);
+
+      if( rc==SQLITE_OK ){
+        rc = fts3EvalSelectDeferred(pCsr, 0, aTC, nToken);
+        for(ii=0; rc==SQLITE_OK && ii<nOr; ii++){
+          rc = fts3EvalSelectDeferred(pCsr, apOr[ii], aTC, nToken);
+        }
+      }
+
+      sqlite3_free(aTC);
+    }
+  }
+#endif
+
+  fts3EvalStartReaders(pCsr, pCsr->pExpr, &rc);
+  return rc;
+}
+
+/*
+** Invalidate the current position list for phrase pPhrase.
+*/
+static void fts3EvalInvalidatePoslist(Fts3Phrase *pPhrase){
+  if( pPhrase->doclist.bFreeList ){
+    sqlite3_free(pPhrase->doclist.pList);
+  }
+  pPhrase->doclist.pList = 0;
+  pPhrase->doclist.nList = 0;
+  pPhrase->doclist.bFreeList = 0;
+}
+
+/*
+** This function is called to edit the position list associated with
+** the phrase object passed as the fifth argument according to a NEAR
+** condition. For example:
+**
+**     abc NEAR/5 "def ghi"
+**
+** Parameter nNear is passed the NEAR distance of the expression (5 in
+** the example above). When this function is called, *paPoslist points to
+** the position list, and *pnToken is the number of phrase tokens in the
+** phrase on the other side of the NEAR operator to pPhrase. For example,
+** if pPhrase refers to the "def ghi" phrase, then *paPoslist points to
+** the position list associated with phrase "abc".
+**
+** All positions in the pPhrase position list that are not sufficiently
+** close to a position in the *paPoslist position list are removed. If this
+** leaves 0 positions, zero is returned. Otherwise, non-zero.
+**
+** Before returning, *paPoslist is set to point to the position lsit 
+** associated with pPhrase. And *pnToken is set to the number of tokens in
+** pPhrase.
+*/
+static int fts3EvalNearTrim(
+  int nNear,                      /* NEAR distance. As in "NEAR/nNear". */
+  char *aTmp,                     /* Temporary space to use */
+  char **paPoslist,               /* IN/OUT: Position list */
+  int *pnToken,                   /* IN/OUT: Tokens in phrase of *paPoslist */
+  Fts3Phrase *pPhrase             /* The phrase object to trim the doclist of */
+){
+  int nParam1 = nNear + pPhrase->nToken;
+  int nParam2 = nNear + *pnToken;
+  int nNew;
+  char *p2; 
+  char *pOut; 
+  int res;
+
+  assert( pPhrase->doclist.pList );
+
+  p2 = pOut = pPhrase->doclist.pList;
+  res = fts3PoslistNearMerge(
+    &pOut, aTmp, nParam1, nParam2, paPoslist, &p2
+  );
+  if( res ){
+    nNew = (int)(pOut - pPhrase->doclist.pList) - 1;
+    assert_fts3_nc( nNew<=pPhrase->doclist.nList && nNew>0 );
+    if( nNew>=0 && nNew<=pPhrase->doclist.nList ){
+      assert( pPhrase->doclist.pList[nNew]=='\0' );
+      memset(&pPhrase->doclist.pList[nNew], 0, pPhrase->doclist.nList - nNew);
+      pPhrase->doclist.nList = nNew;
+    }
+    *paPoslist = pPhrase->doclist.pList;
+    *pnToken = pPhrase->nToken;
+  }
+
+  return res;
+}
+
+/*
+** This function is a no-op if *pRc is other than SQLITE_OK when it is called.
+** Otherwise, it advances the expression passed as the second argument to
+** point to the next matching row in the database. Expressions iterate through
+** matching rows in docid order. Ascending order if Fts3Cursor.bDesc is zero,
+** or descending if it is non-zero.
+**
+** If an error occurs, *pRc is set to an SQLite error code. Otherwise, if
+** successful, the following variables in pExpr are set:
+**
+**   Fts3Expr.bEof                (non-zero if EOF - there is no next row)
+**   Fts3Expr.iDocid              (valid if bEof==0. The docid of the next row)
+**
+** If the expression is of type FTSQUERY_PHRASE, and the expression is not
+** at EOF, then the following variables are populated with the position list
+** for the phrase for the visited row:
+**
+**   FTs3Expr.pPhrase->doclist.nList        (length of pList in bytes)
+**   FTs3Expr.pPhrase->doclist.pList        (pointer to position list)
+**
+** It says above that this function advances the expression to the next
+** matching row. This is usually true, but there are the following exceptions:
+**
+**   1. Deferred tokens are not taken into account. If a phrase consists
+**      entirely of deferred tokens, it is assumed to match every row in
+**      the db. In this case the position-list is not populated at all. 
+**
+**      Or, if a phrase contains one or more deferred tokens and one or
+**      more non-deferred tokens, then the expression is advanced to the 
+**      next possible match, considering only non-deferred tokens. In other
+**      words, if the phrase is "A B C", and "B" is deferred, the expression
+**      is advanced to the next row that contains an instance of "A * C", 
+**      where "*" may match any single token. The position list in this case
+**      is populated as for "A * C" before returning.
+**
+**   2. NEAR is treated as AND. If the expression is "x NEAR y", it is 
+**      advanced to point to the next row that matches "x AND y".
+** 
+** See sqlite3Fts3EvalTestDeferred() for details on testing if a row is
+** really a match, taking into account deferred tokens and NEAR operators.
+*/
+static void fts3EvalNextRow(
+  Fts3Cursor *pCsr,               /* FTS Cursor handle */
+  Fts3Expr *pExpr,                /* Expr. to advance to next matching row */
+  int *pRc                        /* IN/OUT: Error code */
+){
+  if( *pRc==SQLITE_OK && pExpr->bEof==0 ){
+    int bDescDoclist = pCsr->bDesc;         /* Used by DOCID_CMP() macro */
+    pExpr->bStart = 1;
+
+    switch( pExpr->eType ){
+      case FTSQUERY_NEAR:
+      case FTSQUERY_AND: {
+        Fts3Expr *pLeft = pExpr->pLeft;
+        Fts3Expr *pRight = pExpr->pRight;
+        assert( !pLeft->bDeferred || !pRight->bDeferred );
+
+        if( pLeft->bDeferred ){
+          /* LHS is entirely deferred. So we assume it matches every row.
+          ** Advance the RHS iterator to find the next row visited. */
+          fts3EvalNextRow(pCsr, pRight, pRc);
+          pExpr->iDocid = pRight->iDocid;
+          pExpr->bEof = pRight->bEof;
+        }else if( pRight->bDeferred ){
+          /* RHS is entirely deferred. So we assume it matches every row.
+          ** Advance the LHS iterator to find the next row visited. */
+          fts3EvalNextRow(pCsr, pLeft, pRc);
+          pExpr->iDocid = pLeft->iDocid;
+          pExpr->bEof = pLeft->bEof;
+        }else{
+          /* Neither the RHS or LHS are deferred. */
+          fts3EvalNextRow(pCsr, pLeft, pRc);
+          fts3EvalNextRow(pCsr, pRight, pRc);
+          while( !pLeft->bEof && !pRight->bEof && *pRc==SQLITE_OK ){
+            sqlite3_int64 iDiff = DOCID_CMP(pLeft->iDocid, pRight->iDocid);
+            if( iDiff==0 ) break;
+            if( iDiff<0 ){
+              fts3EvalNextRow(pCsr, pLeft, pRc);
+            }else{
+              fts3EvalNextRow(pCsr, pRight, pRc);
+            }
+          }
+          pExpr->iDocid = pLeft->iDocid;
+          pExpr->bEof = (pLeft->bEof || pRight->bEof);
+          if( pExpr->eType==FTSQUERY_NEAR && pExpr->bEof ){
+            assert( pRight->eType==FTSQUERY_PHRASE );
+            if( pRight->pPhrase->doclist.aAll ){
+              Fts3Doclist *pDl = &pRight->pPhrase->doclist;
+              while( *pRc==SQLITE_OK && pRight->bEof==0 ){
+                memset(pDl->pList, 0, pDl->nList);
+                fts3EvalNextRow(pCsr, pRight, pRc);
+              }
+            }
+            if( pLeft->pPhrase && pLeft->pPhrase->doclist.aAll ){
+              Fts3Doclist *pDl = &pLeft->pPhrase->doclist;
+              while( *pRc==SQLITE_OK && pLeft->bEof==0 ){
+                memset(pDl->pList, 0, pDl->nList);
+                fts3EvalNextRow(pCsr, pLeft, pRc);
+              }
+            }
+            pRight->bEof = pLeft->bEof = 1;
+          }
+        }
+        break;
+      }
+  
+      case FTSQUERY_OR: {
+        Fts3Expr *pLeft = pExpr->pLeft;
+        Fts3Expr *pRight = pExpr->pRight;
+        sqlite3_int64 iCmp = DOCID_CMP(pLeft->iDocid, pRight->iDocid);
+
+        assert_fts3_nc( pLeft->bStart || pLeft->iDocid==pRight->iDocid );
+        assert_fts3_nc( pRight->bStart || pLeft->iDocid==pRight->iDocid );
+
+        if( pRight->bEof || (pLeft->bEof==0 && iCmp<0) ){
+          fts3EvalNextRow(pCsr, pLeft, pRc);
+        }else if( pLeft->bEof || iCmp>0 ){
+          fts3EvalNextRow(pCsr, pRight, pRc);
+        }else{
+          fts3EvalNextRow(pCsr, pLeft, pRc);
+          fts3EvalNextRow(pCsr, pRight, pRc);
+        }
+
+        pExpr->bEof = (pLeft->bEof && pRight->bEof);
+        iCmp = DOCID_CMP(pLeft->iDocid, pRight->iDocid);
+        if( pRight->bEof || (pLeft->bEof==0 &&  iCmp<0) ){
+          pExpr->iDocid = pLeft->iDocid;
+        }else{
+          pExpr->iDocid = pRight->iDocid;
+        }
+
+        break;
+      }
+
+      case FTSQUERY_NOT: {
+        Fts3Expr *pLeft = pExpr->pLeft;
+        Fts3Expr *pRight = pExpr->pRight;
+
+        if( pRight->bStart==0 ){
+          fts3EvalNextRow(pCsr, pRight, pRc);
+          assert( *pRc!=SQLITE_OK || pRight->bStart );
+        }
+
+        fts3EvalNextRow(pCsr, pLeft, pRc);
+        if( pLeft->bEof==0 ){
+          while( !*pRc 
+              && !pRight->bEof 
+              && DOCID_CMP(pLeft->iDocid, pRight->iDocid)>0 
+          ){
+            fts3EvalNextRow(pCsr, pRight, pRc);
+          }
+        }
+        pExpr->iDocid = pLeft->iDocid;
+        pExpr->bEof = pLeft->bEof;
+        break;
+      }
+
+      default: {
+        Fts3Phrase *pPhrase = pExpr->pPhrase;
+        fts3EvalInvalidatePoslist(pPhrase);
+        *pRc = fts3EvalPhraseNext(pCsr, pPhrase, &pExpr->bEof);
+        pExpr->iDocid = pPhrase->doclist.iDocid;
+        break;
+      }
+    }
+  }
+}
+
+/*
+** If *pRc is not SQLITE_OK, or if pExpr is not the root node of a NEAR
+** cluster, then this function returns 1 immediately.
+**
+** Otherwise, it checks if the current row really does match the NEAR 
+** expression, using the data currently stored in the position lists 
+** (Fts3Expr->pPhrase.doclist.pList/nList) for each phrase in the expression. 
+**
+** If the current row is a match, the position list associated with each
+** phrase in the NEAR expression is edited in place to contain only those
+** phrase instances sufficiently close to their peers to satisfy all NEAR
+** constraints. In this case it returns 1. If the NEAR expression does not 
+** match the current row, 0 is returned. The position lists may or may not
+** be edited if 0 is returned.
+*/
+static int fts3EvalNearTest(Fts3Expr *pExpr, int *pRc){
+  int res = 1;
+
+  /* The following block runs if pExpr is the root of a NEAR query.
+  ** For example, the query:
+  **
+  **         "w" NEAR "x" NEAR "y" NEAR "z"
+  **
+  ** which is represented in tree form as:
+  **
+  **                               |
+  **                          +--NEAR--+      <-- root of NEAR query
+  **                          |        |
+  **                     +--NEAR--+   "z"
+  **                     |        |
+  **                +--NEAR--+   "y"
+  **                |        |
+  **               "w"      "x"
+  **
+  ** The right-hand child of a NEAR node is always a phrase. The 
+  ** left-hand child may be either a phrase or a NEAR node. There are
+  ** no exceptions to this - it's the way the parser in fts3_expr.c works.
+  */
+  if( *pRc==SQLITE_OK 
+   && pExpr->eType==FTSQUERY_NEAR 
+   && (pExpr->pParent==0 || pExpr->pParent->eType!=FTSQUERY_NEAR)
+  ){
+    Fts3Expr *p; 
+    sqlite3_int64 nTmp = 0;       /* Bytes of temp space */
+    char *aTmp;                   /* Temp space for PoslistNearMerge() */
+
+    /* Allocate temporary working space. */
+    for(p=pExpr; p->pLeft; p=p->pLeft){
+      assert( p->pRight->pPhrase->doclist.nList>0 );
+      nTmp += p->pRight->pPhrase->doclist.nList;
+    }
+    nTmp += p->pPhrase->doclist.nList;
+    aTmp = sqlite3_malloc64(nTmp*2 + FTS3_VARINT_MAX);
+    if( !aTmp ){
+      *pRc = SQLITE_NOMEM;
+      res = 0;
+    }else{
+      char *aPoslist = p->pPhrase->doclist.pList;
+      int nToken = p->pPhrase->nToken;
+
+      for(p=p->pParent;res && p && p->eType==FTSQUERY_NEAR; p=p->pParent){
+        Fts3Phrase *pPhrase = p->pRight->pPhrase;
+        int nNear = p->nNear;
+        res = fts3EvalNearTrim(nNear, aTmp, &aPoslist, &nToken, pPhrase);
+      }
+
+      aPoslist = pExpr->pRight->pPhrase->doclist.pList;
+      nToken = pExpr->pRight->pPhrase->nToken;
+      for(p=pExpr->pLeft; p && res; p=p->pLeft){
+        int nNear;
+        Fts3Phrase *pPhrase;
+        assert( p->pParent && p->pParent->pLeft==p );
+        nNear = p->pParent->nNear;
+        pPhrase = (
+            p->eType==FTSQUERY_NEAR ? p->pRight->pPhrase : p->pPhrase
+        );
+        res = fts3EvalNearTrim(nNear, aTmp, &aPoslist, &nToken, pPhrase);
+      }
+    }
+
+    sqlite3_free(aTmp);
+  }
+
+  return res;
+}
+
+/*
+** This function is a helper function for sqlite3Fts3EvalTestDeferred().
+** Assuming no error occurs or has occurred, It returns non-zero if the
+** expression passed as the second argument matches the row that pCsr 
+** currently points to, or zero if it does not.
+**
+** If *pRc is not SQLITE_OK when this function is called, it is a no-op.
+** If an error occurs during execution of this function, *pRc is set to 
+** the appropriate SQLite error code. In this case the returned value is 
+** undefined.
+*/
+static int fts3EvalTestExpr(
+  Fts3Cursor *pCsr,               /* FTS cursor handle */
+  Fts3Expr *pExpr,                /* Expr to test. May or may not be root. */
+  int *pRc                        /* IN/OUT: Error code */
+){
+  int bHit = 1;                   /* Return value */
+  if( *pRc==SQLITE_OK ){
+    switch( pExpr->eType ){
+      case FTSQUERY_NEAR:
+      case FTSQUERY_AND:
+        bHit = (
+            fts3EvalTestExpr(pCsr, pExpr->pLeft, pRc)
+         && fts3EvalTestExpr(pCsr, pExpr->pRight, pRc)
+         && fts3EvalNearTest(pExpr, pRc)
+        );
+
+        /* If the NEAR expression does not match any rows, zero the doclist for 
+        ** all phrases involved in the NEAR. This is because the snippet(),
+        ** offsets() and matchinfo() functions are not supposed to recognize 
+        ** any instances of phrases that are part of unmatched NEAR queries. 
+        ** For example if this expression:
+        **
+        **    ... MATCH 'a OR (b NEAR c)'
+        **
+        ** is matched against a row containing:
+        **
+        **        'a b d e'
+        **
+        ** then any snippet() should ony highlight the "a" term, not the "b"
+        ** (as "b" is part of a non-matching NEAR clause).
+        */
+        if( bHit==0 
+         && pExpr->eType==FTSQUERY_NEAR 
+         && (pExpr->pParent==0 || pExpr->pParent->eType!=FTSQUERY_NEAR)
+        ){
+          Fts3Expr *p;
+          for(p=pExpr; p->pPhrase==0; p=p->pLeft){
+            if( p->pRight->iDocid==pCsr->iPrevId ){
+              fts3EvalInvalidatePoslist(p->pRight->pPhrase);
+            }
+          }
+          if( p->iDocid==pCsr->iPrevId ){
+            fts3EvalInvalidatePoslist(p->pPhrase);
+          }
+        }
+
+        break;
+
+      case FTSQUERY_OR: {
+        int bHit1 = fts3EvalTestExpr(pCsr, pExpr->pLeft, pRc);
+        int bHit2 = fts3EvalTestExpr(pCsr, pExpr->pRight, pRc);
+        bHit = bHit1 || bHit2;
+        break;
+      }
+
+      case FTSQUERY_NOT:
+        bHit = (
+            fts3EvalTestExpr(pCsr, pExpr->pLeft, pRc)
+         && !fts3EvalTestExpr(pCsr, pExpr->pRight, pRc)
+        );
+        break;
+
+      default: {
+#ifndef SQLITE_DISABLE_FTS4_DEFERRED
+        if( pCsr->pDeferred && (pExpr->bDeferred || (
+            pExpr->iDocid==pCsr->iPrevId && pExpr->pPhrase->doclist.pList
+        ))){
+          Fts3Phrase *pPhrase = pExpr->pPhrase;
+          if( pExpr->bDeferred ){
+            fts3EvalInvalidatePoslist(pPhrase);
+          }
+          *pRc = fts3EvalDeferredPhrase(pCsr, pPhrase);
+          bHit = (pPhrase->doclist.pList!=0);
+          pExpr->iDocid = pCsr->iPrevId;
+        }else
+#endif
+        {
+          bHit = ( 
+              pExpr->bEof==0 && pExpr->iDocid==pCsr->iPrevId
+           && pExpr->pPhrase->doclist.nList>0
+          );
+        }
+        break;
+      }
+    }
+  }
+  return bHit;
+}
+
+/*
+** This function is called as the second part of each xNext operation when
+** iterating through the results of a full-text query. At this point the
+** cursor points to a row that matches the query expression, with the
+** following caveats:
+**
+**   * Up until this point, "NEAR" operators in the expression have been
+**     treated as "AND".
+**
+**   * Deferred tokens have not yet been considered.
+**
+** If *pRc is not SQLITE_OK when this function is called, it immediately
+** returns 0. Otherwise, it tests whether or not after considering NEAR
+** operators and deferred tokens the current row is still a match for the
+** expression. It returns 1 if both of the following are true:
+**
+**   1. *pRc is SQLITE_OK when this function returns, and
+**
+**   2. After scanning the current FTS table row for the deferred tokens,
+**      it is determined that the row does *not* match the query.
+**
+** Or, if no error occurs and it seems the current row does match the FTS
+** query, return 0.
+*/
+int sqlite3Fts3EvalTestDeferred(Fts3Cursor *pCsr, int *pRc){
+  int rc = *pRc;
+  int bMiss = 0;
+  if( rc==SQLITE_OK ){
+
+    /* If there are one or more deferred tokens, load the current row into
+    ** memory and scan it to determine the position list for each deferred
+    ** token. Then, see if this row is really a match, considering deferred
+    ** tokens and NEAR operators (neither of which were taken into account
+    ** earlier, by fts3EvalNextRow()). 
+    */
+    if( pCsr->pDeferred ){
+      rc = fts3CursorSeek(0, pCsr);
+      if( rc==SQLITE_OK ){
+        rc = sqlite3Fts3CacheDeferredDoclists(pCsr);
+      }
+    }
+    bMiss = (0==fts3EvalTestExpr(pCsr, pCsr->pExpr, &rc));
+
+    /* Free the position-lists accumulated for each deferred token above. */
+    sqlite3Fts3FreeDeferredDoclists(pCsr);
+    *pRc = rc;
+  }
+  return (rc==SQLITE_OK && bMiss);
+}
+
+/*
+** Advance to the next document that matches the FTS expression in
+** Fts3Cursor.pExpr.
+*/
+static int fts3EvalNext(Fts3Cursor *pCsr){
+  int rc = SQLITE_OK;             /* Return Code */
+  Fts3Expr *pExpr = pCsr->pExpr;
+  assert( pCsr->isEof==0 );
+  if( pExpr==0 ){
+    pCsr->isEof = 1;
+  }else{
+    do {
+      if( pCsr->isRequireSeek==0 ){
+        sqlite3_reset(pCsr->pStmt);
+      }
+      assert( sqlite3_data_count(pCsr->pStmt)==0 );
+      fts3EvalNextRow(pCsr, pExpr, &rc);
+      pCsr->isEof = pExpr->bEof;
+      pCsr->isRequireSeek = 1;
+      pCsr->isMatchinfoNeeded = 1;
+      pCsr->iPrevId = pExpr->iDocid;
+    }while( pCsr->isEof==0 && sqlite3Fts3EvalTestDeferred(pCsr, &rc) );
+  }
+
+  /* Check if the cursor is past the end of the docid range specified
+  ** by Fts3Cursor.iMinDocid/iMaxDocid. If so, set the EOF flag.  */
+  if( rc==SQLITE_OK && (
+        (pCsr->bDesc==0 && pCsr->iPrevId>pCsr->iMaxDocid)
+     || (pCsr->bDesc!=0 && pCsr->iPrevId<pCsr->iMinDocid)
+  )){
+    pCsr->isEof = 1;
+  }
+
+  return rc;
+}
+
+/*
+** Restart interation for expression pExpr so that the next call to
+** fts3EvalNext() visits the first row. Do not allow incremental 
+** loading or merging of phrase doclists for this iteration.
+**
+** If *pRc is other than SQLITE_OK when this function is called, it is
+** a no-op. If an error occurs within this function, *pRc is set to an
+** SQLite error code before returning.
+*/
+static void fts3EvalRestart(
+  Fts3Cursor *pCsr,
+  Fts3Expr *pExpr,
+  int *pRc
+){
+  if( pExpr && *pRc==SQLITE_OK ){
+    Fts3Phrase *pPhrase = pExpr->pPhrase;
+
+    if( pPhrase ){
+      fts3EvalInvalidatePoslist(pPhrase);
+      if( pPhrase->bIncr ){
+        int i;
+        for(i=0; i<pPhrase->nToken; i++){
+          Fts3PhraseToken *pToken = &pPhrase->aToken[i];
+          assert( pToken->pDeferred==0 );
+          if( pToken->pSegcsr ){
+            sqlite3Fts3MsrIncrRestart(pToken->pSegcsr);
+          }
+        }
+        *pRc = fts3EvalPhraseStart(pCsr, 0, pPhrase);
+      }
+      pPhrase->doclist.pNextDocid = 0;
+      pPhrase->doclist.iDocid = 0;
+      pPhrase->pOrPoslist = 0;
+    }
+
+    pExpr->iDocid = 0;
+    pExpr->bEof = 0;
+    pExpr->bStart = 0;
+
+    fts3EvalRestart(pCsr, pExpr->pLeft, pRc);
+    fts3EvalRestart(pCsr, pExpr->pRight, pRc);
+  }
+}
+
+/*
+** After allocating the Fts3Expr.aMI[] array for each phrase in the 
+** expression rooted at pExpr, the cursor iterates through all rows matched
+** by pExpr, calling this function for each row. This function increments
+** the values in Fts3Expr.aMI[] according to the position-list currently
+** found in Fts3Expr.pPhrase->doclist.pList for each of the phrase 
+** expression nodes.
+*/
+static void fts3EvalUpdateCounts(Fts3Expr *pExpr, int nCol){
+  if( pExpr ){
+    Fts3Phrase *pPhrase = pExpr->pPhrase;
+    if( pPhrase && pPhrase->doclist.pList ){
+      int iCol = 0;
+      char *p = pPhrase->doclist.pList;
+
+      do{
+        u8 c = 0;
+        int iCnt = 0;
+        while( 0xFE & (*p | c) ){
+          if( (c&0x80)==0 ) iCnt++;
+          c = *p++ & 0x80;
+        }
+
+        /* aMI[iCol*3 + 1] = Number of occurrences
+        ** aMI[iCol*3 + 2] = Number of rows containing at least one instance
+        */
+        pExpr->aMI[iCol*3 + 1] += iCnt;
+        pExpr->aMI[iCol*3 + 2] += (iCnt>0);
+        if( *p==0x00 ) break;
+        p++;
+        p += fts3GetVarint32(p, &iCol);
+      }while( iCol<nCol );
+    }
+
+    fts3EvalUpdateCounts(pExpr->pLeft, nCol);
+    fts3EvalUpdateCounts(pExpr->pRight, nCol);
+  }
+}
+
+/*
+** This is an sqlite3Fts3ExprIterate() callback. If the Fts3Expr.aMI[] array
+** has not yet been allocated, allocate and zero it. Otherwise, just zero
+** it.
+*/
+static int fts3AllocateMSI(Fts3Expr *pExpr, int iPhrase, void *pCtx){
+  Fts3Table *pTab = (Fts3Table*)pCtx;
+  UNUSED_PARAMETER(iPhrase);
+  if( pExpr->aMI==0 ){
+    pExpr->aMI = (u32 *)sqlite3_malloc64(pTab->nColumn * 3 * sizeof(u32));
+    if( pExpr->aMI==0 ) return SQLITE_NOMEM;
+  }
+  memset(pExpr->aMI, 0, pTab->nColumn * 3 * sizeof(u32));
+  return SQLITE_OK;
+}
+
+/*
+** Expression pExpr must be of type FTSQUERY_PHRASE.
+**
+** If it is not already allocated and populated, this function allocates and
+** populates the Fts3Expr.aMI[] array for expression pExpr. If pExpr is part
+** of a NEAR expression, then it also allocates and populates the same array
+** for all other phrases that are part of the NEAR expression.
+**
+** SQLITE_OK is returned if the aMI[] array is successfully allocated and
+** populated. Otherwise, if an error occurs, an SQLite error code is returned.
+*/
+static int fts3EvalGatherStats(
+  Fts3Cursor *pCsr,               /* Cursor object */
+  Fts3Expr *pExpr                 /* FTSQUERY_PHRASE expression */
+){
+  int rc = SQLITE_OK;             /* Return code */
+
+  assert( pExpr->eType==FTSQUERY_PHRASE );
+  if( pExpr->aMI==0 ){
+    Fts3Table *pTab = (Fts3Table *)pCsr->base.pVtab;
+    Fts3Expr *pRoot;                /* Root of NEAR expression */
+
+    sqlite3_int64 iPrevId = pCsr->iPrevId;
+    sqlite3_int64 iDocid;
+    u8 bEof;
+
+    /* Find the root of the NEAR expression */
+    pRoot = pExpr;
+    while( pRoot->pParent 
+        && (pRoot->pParent->eType==FTSQUERY_NEAR || pRoot->bDeferred) 
+    ){
+      pRoot = pRoot->pParent;
+    }
+    iDocid = pRoot->iDocid;
+    bEof = pRoot->bEof;
+    assert( pRoot->bStart );
+
+    /* Allocate space for the aMSI[] array of each FTSQUERY_PHRASE node */
+    rc = sqlite3Fts3ExprIterate(pRoot, fts3AllocateMSI, (void*)pTab);
+    if( rc!=SQLITE_OK ) return rc;
+    fts3EvalRestart(pCsr, pRoot, &rc);
+
+    while( pCsr->isEof==0 && rc==SQLITE_OK ){
+
+      do {
+        /* Ensure the %_content statement is reset. */
+        if( pCsr->isRequireSeek==0 ) sqlite3_reset(pCsr->pStmt);
+        assert( sqlite3_data_count(pCsr->pStmt)==0 );
+
+        /* Advance to the next document */
+        fts3EvalNextRow(pCsr, pRoot, &rc);
+        pCsr->isEof = pRoot->bEof;
+        pCsr->isRequireSeek = 1;
+        pCsr->isMatchinfoNeeded = 1;
+        pCsr->iPrevId = pRoot->iDocid;
+      }while( pCsr->isEof==0 
+           && pRoot->eType==FTSQUERY_NEAR 
+           && sqlite3Fts3EvalTestDeferred(pCsr, &rc) 
+      );
+
+      if( rc==SQLITE_OK && pCsr->isEof==0 ){
+        fts3EvalUpdateCounts(pRoot, pTab->nColumn);
+      }
+    }
+
+    pCsr->isEof = 0;
+    pCsr->iPrevId = iPrevId;
+
+    if( bEof ){
+      pRoot->bEof = bEof;
+    }else{
+      /* Caution: pRoot may iterate through docids in ascending or descending
+      ** order. For this reason, even though it seems more defensive, the 
+      ** do loop can not be written:
+      **
+      **   do {...} while( pRoot->iDocid<iDocid && rc==SQLITE_OK );
+      */
+      fts3EvalRestart(pCsr, pRoot, &rc);
+      do {
+        fts3EvalNextRow(pCsr, pRoot, &rc);
+        assert_fts3_nc( pRoot->bEof==0 );
+        if( pRoot->bEof ) rc = FTS_CORRUPT_VTAB;
+      }while( pRoot->iDocid!=iDocid && rc==SQLITE_OK );
+    }
+  }
+  return rc;
+}
+
+/*
+** This function is used by the matchinfo() module to query a phrase 
+** expression node for the following information:
+**
+**   1. The total number of occurrences of the phrase in each column of 
+**      the FTS table (considering all rows), and
+**
+**   2. For each column, the number of rows in the table for which the
+**      column contains at least one instance of the phrase.
+**
+** If no error occurs, SQLITE_OK is returned and the values for each column
+** written into the array aiOut as follows:
+**
+**   aiOut[iCol*3 + 1] = Number of occurrences
+**   aiOut[iCol*3 + 2] = Number of rows containing at least one instance
+**
+** Caveats:
+**
+**   * If a phrase consists entirely of deferred tokens, then all output 
+**     values are set to the number of documents in the table. In other
+**     words we assume that very common tokens occur exactly once in each 
+**     column of each row of the table.
+**
+**   * If a phrase contains some deferred tokens (and some non-deferred 
+**     tokens), count the potential occurrence identified by considering
+**     the non-deferred tokens instead of actual phrase occurrences.
+**
+**   * If the phrase is part of a NEAR expression, then only phrase instances
+**     that meet the NEAR constraint are included in the counts.
+*/
+int sqlite3Fts3EvalPhraseStats(
+  Fts3Cursor *pCsr,               /* FTS cursor handle */
+  Fts3Expr *pExpr,                /* Phrase expression */
+  u32 *aiOut                      /* Array to write results into (see above) */
+){
+  Fts3Table *pTab = (Fts3Table *)pCsr->base.pVtab;
+  int rc = SQLITE_OK;
+  int iCol;
+
+  if( pExpr->bDeferred && pExpr->pParent->eType!=FTSQUERY_NEAR ){
+    assert( pCsr->nDoc>0 );
+    for(iCol=0; iCol<pTab->nColumn; iCol++){
+      aiOut[iCol*3 + 1] = (u32)pCsr->nDoc;
+      aiOut[iCol*3 + 2] = (u32)pCsr->nDoc;
+    }
+  }else{
+    rc = fts3EvalGatherStats(pCsr, pExpr);
+    if( rc==SQLITE_OK ){
+      assert( pExpr->aMI );
+      for(iCol=0; iCol<pTab->nColumn; iCol++){
+        aiOut[iCol*3 + 1] = pExpr->aMI[iCol*3 + 1];
+        aiOut[iCol*3 + 2] = pExpr->aMI[iCol*3 + 2];
+      }
+    }
+  }
+
+  return rc;
+}
+
+/*
+** The expression pExpr passed as the second argument to this function
+** must be of type FTSQUERY_PHRASE. 
+**
+** The returned value is either NULL or a pointer to a buffer containing
+** a position-list indicating the occurrences of the phrase in column iCol
+** of the current row. 
+**
+** More specifically, the returned buffer contains 1 varint for each 
+** occurrence of the phrase in the column, stored using the normal (delta+2) 
+** compression and is terminated by either an 0x01 or 0x00 byte. For example,
+** if the requested column contains "a b X c d X X" and the position-list
+** for 'X' is requested, the buffer returned may contain:
+**
+**     0x04 0x05 0x03 0x01   or   0x04 0x05 0x03 0x00
+**
+** This function works regardless of whether or not the phrase is deferred,
+** incremental, or neither.
+*/
+int sqlite3Fts3EvalPhrasePoslist(
+  Fts3Cursor *pCsr,               /* FTS3 cursor object */
+  Fts3Expr *pExpr,                /* Phrase to return doclist for */
+  int iCol,                       /* Column to return position list for */
+  char **ppOut                    /* OUT: Pointer to position list */
+){
+  Fts3Phrase *pPhrase = pExpr->pPhrase;
+  Fts3Table *pTab = (Fts3Table *)pCsr->base.pVtab;
+  char *pIter;
+  int iThis;
+  sqlite3_int64 iDocid;
+
+  /* If this phrase is applies specifically to some column other than 
+  ** column iCol, return a NULL pointer.  */
+  *ppOut = 0;
+  assert( iCol>=0 && iCol<pTab->nColumn );
+  if( (pPhrase->iColumn<pTab->nColumn && pPhrase->iColumn!=iCol) ){
+    return SQLITE_OK;
+  }
+
+  iDocid = pExpr->iDocid;
+  pIter = pPhrase->doclist.pList;
+  if( iDocid!=pCsr->iPrevId || pExpr->bEof ){
+    int rc = SQLITE_OK;
+    int bDescDoclist = pTab->bDescIdx;      /* For DOCID_CMP macro */
+    int bOr = 0;
+    u8 bTreeEof = 0;
+    Fts3Expr *p;                  /* Used to iterate from pExpr to root */
+    Fts3Expr *pNear;              /* Most senior NEAR ancestor (or pExpr) */
+    Fts3Expr *pRun;               /* Closest non-deferred ancestor of pNear */
+    int bMatch;
+
+    /* Check if this phrase descends from an OR expression node. If not, 
+    ** return NULL. Otherwise, the entry that corresponds to docid 
+    ** pCsr->iPrevId may lie earlier in the doclist buffer. Or, if the
+    ** tree that the node is part of has been marked as EOF, but the node
+    ** itself is not EOF, then it may point to an earlier entry. */
+    pNear = pExpr;
+    for(p=pExpr->pParent; p; p=p->pParent){
+      if( p->eType==FTSQUERY_OR ) bOr = 1;
+      if( p->eType==FTSQUERY_NEAR ) pNear = p;
+      if( p->bEof ) bTreeEof = 1;
+    }
+    if( bOr==0 ) return SQLITE_OK;
+    pRun = pNear;
+    while( pRun->bDeferred ){
+      assert( pRun->pParent );
+      pRun = pRun->pParent;
+    }
+
+    /* This is the descendent of an OR node. In this case we cannot use
+    ** an incremental phrase. Load the entire doclist for the phrase
+    ** into memory in this case.  */
+    if( pPhrase->bIncr ){
+      int bEofSave = pRun->bEof;
+      fts3EvalRestart(pCsr, pRun, &rc);
+      while( rc==SQLITE_OK && !pRun->bEof ){
+        fts3EvalNextRow(pCsr, pRun, &rc);
+        if( bEofSave==0 && pRun->iDocid==iDocid ) break;
+      }
+      assert( rc!=SQLITE_OK || pPhrase->bIncr==0 );
+      if( rc==SQLITE_OK && pRun->bEof!=bEofSave ){
+        rc = FTS_CORRUPT_VTAB;
+      }
+    }
+    if( bTreeEof ){
+      while( rc==SQLITE_OK && !pRun->bEof ){
+        fts3EvalNextRow(pCsr, pRun, &rc);
+      }
+    }
+    if( rc!=SQLITE_OK ) return rc;
+
+    bMatch = 1;
+    for(p=pNear; p; p=p->pLeft){
+      u8 bEof = 0;
+      Fts3Expr *pTest = p;
+      Fts3Phrase *pPh;
+      assert( pTest->eType==FTSQUERY_NEAR || pTest->eType==FTSQUERY_PHRASE );
+      if( pTest->eType==FTSQUERY_NEAR ) pTest = pTest->pRight;
+      assert( pTest->eType==FTSQUERY_PHRASE );
+      pPh = pTest->pPhrase;
+
+      pIter = pPh->pOrPoslist;
+      iDocid = pPh->iOrDocid;
+      if( pCsr->bDesc==bDescDoclist ){
+        bEof = !pPh->doclist.nAll ||
+          (pIter >= (pPh->doclist.aAll + pPh->doclist.nAll));
+        while( (pIter==0 || DOCID_CMP(iDocid, pCsr->iPrevId)<0 ) && bEof==0 ){
+          sqlite3Fts3DoclistNext(
+              bDescDoclist, pPh->doclist.aAll, pPh->doclist.nAll, 
+              &pIter, &iDocid, &bEof
+          );
+        }
+      }else{
+        bEof = !pPh->doclist.nAll || (pIter && pIter<=pPh->doclist.aAll);
+        while( (pIter==0 || DOCID_CMP(iDocid, pCsr->iPrevId)>0 ) && bEof==0 ){
+          int dummy;
+          sqlite3Fts3DoclistPrev(
+              bDescDoclist, pPh->doclist.aAll, pPh->doclist.nAll, 
+              &pIter, &iDocid, &dummy, &bEof
+              );
+        }
+      }
+      pPh->pOrPoslist = pIter;
+      pPh->iOrDocid = iDocid;
+      if( bEof || iDocid!=pCsr->iPrevId ) bMatch = 0;
+    }
+
+    if( bMatch ){
+      pIter = pPhrase->pOrPoslist;
+    }else{
+      pIter = 0;
+    }
+  }
+  if( pIter==0 ) return SQLITE_OK;
+
+  if( *pIter==0x01 ){
+    pIter++;
+    pIter += fts3GetVarint32(pIter, &iThis);
+  }else{
+    iThis = 0;
+  }
+  while( iThis<iCol ){
+    fts3ColumnlistCopy(0, &pIter);
+    if( *pIter==0x00 ) return SQLITE_OK;
+    pIter++;
+    pIter += fts3GetVarint32(pIter, &iThis);
+  }
+  if( *pIter==0x00 ){
+    pIter = 0;
+  }
+
+  *ppOut = ((iCol==iThis)?pIter:0);
+  return SQLITE_OK;
+}
+
+/*
+** Free all components of the Fts3Phrase structure that were allocated by
+** the eval module. Specifically, this means to free:
+**
+**   * the contents of pPhrase->doclist, and
+**   * any Fts3MultiSegReader objects held by phrase tokens.
+*/
+void sqlite3Fts3EvalPhraseCleanup(Fts3Phrase *pPhrase){
+  if( pPhrase ){
+    int i;
+    sqlite3_free(pPhrase->doclist.aAll);
+    fts3EvalInvalidatePoslist(pPhrase);
+    memset(&pPhrase->doclist, 0, sizeof(Fts3Doclist));
+    for(i=0; i<pPhrase->nToken; i++){
+      fts3SegReaderCursorFree(pPhrase->aToken[i].pSegcsr);
+      pPhrase->aToken[i].pSegcsr = 0;
+    }
+  }
+}
+
+
+/*
+** Return SQLITE_CORRUPT_VTAB.
+*/
+#ifdef SQLITE_DEBUG
+int sqlite3Fts3Corrupt(){
+  return SQLITE_CORRUPT_VTAB;
+}
+#endif
+
+#if !defined(SQLITE_CORE)
+/*
+** Initialize API pointer table, if required.
+*/
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_fts3_init(
+  sqlite3 *db, 
+  char **pzErrMsg,
+  const sqlite3_api_routines *pApi
+){
+  SQLITE_EXTENSION_INIT2(pApi)
+  return sqlite3Fts3Init(db);
+}
+#endif
+
+#endif
diff --git a/ext/fts3/fts3.h b/ext/fts3/fts3.h
new file mode 100644
index 0000000000000000000000000000000000000000..c1aa8caf0927920d6bb78d578d9c111d4161a34a
--- /dev/null
+++ b/ext/fts3/fts3.h
@@ -0,0 +1,26 @@
+/*
+** 2006 Oct 10
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This header file is used by programs that want to link against the
+** FTS3 library.  All it does is declare the sqlite3Fts3Init() interface.
+*/
+#include "sqlite3.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif  /* __cplusplus */
+
+int sqlite3Fts3Init(sqlite3 *db);
+
+#ifdef __cplusplus
+}  /* extern "C" */
+#endif  /* __cplusplus */
diff --git a/ext/fts3/fts3Int.h b/ext/fts3/fts3Int.h
new file mode 100644
index 0000000000000000000000000000000000000000..3b236faf495e758417116d7c7fb1201e8d7d2fcb
--- /dev/null
+++ b/ext/fts3/fts3Int.h
@@ -0,0 +1,659 @@
+/*
+** 2009 Nov 12
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+*/
+#ifndef _FTSINT_H
+#define _FTSINT_H
+
+#if !defined(NDEBUG) && !defined(SQLITE_DEBUG) 
+# define NDEBUG 1
+#endif
+
+/* FTS3/FTS4 require virtual tables */
+#ifdef SQLITE_OMIT_VIRTUALTABLE
+# undef SQLITE_ENABLE_FTS3
+# undef SQLITE_ENABLE_FTS4
+#endif
+
+/*
+** FTS4 is really an extension for FTS3.  It is enabled using the
+** SQLITE_ENABLE_FTS3 macro.  But to avoid confusion we also all
+** the SQLITE_ENABLE_FTS4 macro to serve as an alisse for SQLITE_ENABLE_FTS3.
+*/
+#if defined(SQLITE_ENABLE_FTS4) && !defined(SQLITE_ENABLE_FTS3)
+# define SQLITE_ENABLE_FTS3
+#endif
+
+#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3)
+
+/* If not building as part of the core, include sqlite3ext.h. */
+#ifndef SQLITE_CORE
+# include "sqlite3ext.h" 
+SQLITE_EXTENSION_INIT3
+#endif
+
+#include "sqlite3.h"
+#include "fts3_tokenizer.h"
+#include "fts3_hash.h"
+
+/*
+** This constant determines the maximum depth of an FTS expression tree
+** that the library will create and use. FTS uses recursion to perform 
+** various operations on the query tree, so the disadvantage of a large
+** limit is that it may allow very large queries to use large amounts
+** of stack space (perhaps causing a stack overflow).
+*/
+#ifndef SQLITE_FTS3_MAX_EXPR_DEPTH
+# define SQLITE_FTS3_MAX_EXPR_DEPTH 12
+#endif
+
+
+/*
+** This constant controls how often segments are merged. Once there are
+** FTS3_MERGE_COUNT segments of level N, they are merged into a single
+** segment of level N+1.
+*/
+#define FTS3_MERGE_COUNT 16
+
+/*
+** This is the maximum amount of data (in bytes) to store in the 
+** Fts3Table.pendingTerms hash table. Normally, the hash table is
+** populated as documents are inserted/updated/deleted in a transaction
+** and used to create a new segment when the transaction is committed.
+** However if this limit is reached midway through a transaction, a new 
+** segment is created and the hash table cleared immediately.
+*/
+#define FTS3_MAX_PENDING_DATA (1*1024*1024)
+
+/*
+** Macro to return the number of elements in an array. SQLite has a
+** similar macro called ArraySize(). Use a different name to avoid
+** a collision when building an amalgamation with built-in FTS3.
+*/
+#define SizeofArray(X) ((int)(sizeof(X)/sizeof(X[0])))
+
+
+#ifndef MIN
+# define MIN(x,y) ((x)<(y)?(x):(y))
+#endif
+#ifndef MAX
+# define MAX(x,y) ((x)>(y)?(x):(y))
+#endif
+
+/*
+** Maximum length of a varint encoded integer. The varint format is different
+** from that used by SQLite, so the maximum length is 10, not 9.
+*/
+#define FTS3_VARINT_MAX 10
+
+#define FTS3_BUFFER_PADDING 8
+
+/*
+** FTS4 virtual tables may maintain multiple indexes - one index of all terms
+** in the document set and zero or more prefix indexes. All indexes are stored
+** as one or more b+-trees in the %_segments and %_segdir tables. 
+**
+** It is possible to determine which index a b+-tree belongs to based on the
+** value stored in the "%_segdir.level" column. Given this value L, the index
+** that the b+-tree belongs to is (L<<10). In other words, all b+-trees with
+** level values between 0 and 1023 (inclusive) belong to index 0, all levels
+** between 1024 and 2047 to index 1, and so on.
+**
+** It is considered impossible for an index to use more than 1024 levels. In 
+** theory though this may happen, but only after at least 
+** (FTS3_MERGE_COUNT^1024) separate flushes of the pending-terms tables.
+*/
+#define FTS3_SEGDIR_MAXLEVEL      1024
+#define FTS3_SEGDIR_MAXLEVEL_STR "1024"
+
+/*
+** The testcase() macro is only used by the amalgamation.  If undefined,
+** make it a no-op.
+*/
+#ifndef testcase
+# define testcase(X)
+#endif
+
+/*
+** Terminator values for position-lists and column-lists.
+*/
+#define POS_COLUMN  (1)     /* Column-list terminator */
+#define POS_END     (0)     /* Position-list terminator */ 
+
+/*
+** The assert_fts3_nc() macro is similar to the assert() macro, except that it
+** is used for assert() conditions that are true only if it can be 
+** guranteed that the database is not corrupt.
+*/
+#ifdef SQLITE_DEBUG
+extern int sqlite3_fts3_may_be_corrupt;
+# define assert_fts3_nc(x) assert(sqlite3_fts3_may_be_corrupt || (x))
+#else
+# define assert_fts3_nc(x) assert(x)
+#endif
+
+/*
+** This section provides definitions to allow the
+** FTS3 extension to be compiled outside of the 
+** amalgamation.
+*/
+#ifndef SQLITE_AMALGAMATION
+/*
+** Macros indicating that conditional expressions are always true or
+** false.
+*/
+#if defined(SQLITE_COVERAGE_TEST) || defined(SQLITE_MUTATION_TEST)
+# define SQLITE_OMIT_AUXILIARY_SAFETY_CHECKS 1
+#endif
+#if defined(SQLITE_OMIT_AUXILIARY_SAFETY_CHECKS)
+# define ALWAYS(X)      (1)
+# define NEVER(X)       (0)
+#elif !defined(NDEBUG)
+# define ALWAYS(X)      ((X)?1:(assert(0),0))
+# define NEVER(X)       ((X)?(assert(0),1):0)
+#else
+# define ALWAYS(X)      (X)
+# define NEVER(X)       (X)
+#endif
+
+/*
+** Internal types used by SQLite.
+*/
+typedef unsigned char u8;         /* 1-byte (or larger) unsigned integer */
+typedef short int i16;            /* 2-byte (or larger) signed integer */
+typedef unsigned int u32;         /* 4-byte unsigned integer */
+typedef sqlite3_uint64 u64;       /* 8-byte unsigned integer */
+typedef sqlite3_int64 i64;        /* 8-byte signed integer */
+
+/*
+** Macro used to suppress compiler warnings for unused parameters.
+*/
+#define UNUSED_PARAMETER(x) (void)(x)
+
+/*
+** Activate assert() only if SQLITE_TEST is enabled.
+*/
+#if !defined(NDEBUG) && !defined(SQLITE_DEBUG) 
+# define NDEBUG 1
+#endif
+
+/*
+** The TESTONLY macro is used to enclose variable declarations or
+** other bits of code that are needed to support the arguments
+** within testcase() and assert() macros.
+*/
+#if defined(SQLITE_DEBUG) || defined(SQLITE_COVERAGE_TEST)
+# define TESTONLY(X)  X
+#else
+# define TESTONLY(X)
+#endif
+
+#define LARGEST_INT64  (0xffffffff|(((i64)0x7fffffff)<<32))
+#define SMALLEST_INT64 (((i64)-1) - LARGEST_INT64)
+
+#define deliberate_fall_through
+
+#endif /* SQLITE_AMALGAMATION */
+
+#ifdef SQLITE_DEBUG
+int sqlite3Fts3Corrupt(void);
+# define FTS_CORRUPT_VTAB sqlite3Fts3Corrupt()
+#else
+# define FTS_CORRUPT_VTAB SQLITE_CORRUPT_VTAB
+#endif
+
+typedef struct Fts3Table Fts3Table;
+typedef struct Fts3Cursor Fts3Cursor;
+typedef struct Fts3Expr Fts3Expr;
+typedef struct Fts3Phrase Fts3Phrase;
+typedef struct Fts3PhraseToken Fts3PhraseToken;
+
+typedef struct Fts3Doclist Fts3Doclist;
+typedef struct Fts3SegFilter Fts3SegFilter;
+typedef struct Fts3DeferredToken Fts3DeferredToken;
+typedef struct Fts3SegReader Fts3SegReader;
+typedef struct Fts3MultiSegReader Fts3MultiSegReader;
+
+typedef struct MatchinfoBuffer MatchinfoBuffer;
+
+/*
+** A connection to a fulltext index is an instance of the following
+** structure. The xCreate and xConnect methods create an instance
+** of this structure and xDestroy and xDisconnect free that instance.
+** All other methods receive a pointer to the structure as one of their
+** arguments.
+*/
+struct Fts3Table {
+  sqlite3_vtab base;              /* Base class used by SQLite core */
+  sqlite3 *db;                    /* The database connection */
+  const char *zDb;                /* logical database name */
+  const char *zName;              /* virtual table name */
+  int nColumn;                    /* number of named columns in virtual table */
+  char **azColumn;                /* column names.  malloced */
+  u8 *abNotindexed;               /* True for 'notindexed' columns */
+  sqlite3_tokenizer *pTokenizer;  /* tokenizer for inserts and queries */
+  char *zContentTbl;              /* content=xxx option, or NULL */
+  char *zLanguageid;              /* languageid=xxx option, or NULL */
+  int nAutoincrmerge;             /* Value configured by 'automerge' */
+  u32 nLeafAdd;                   /* Number of leaf blocks added this trans */
+  int bLock;                      /* Used to prevent recursive content= tbls */
+
+  /* Precompiled statements used by the implementation. Each of these 
+  ** statements is run and reset within a single virtual table API call. 
+  */
+  sqlite3_stmt *aStmt[40];
+  sqlite3_stmt *pSeekStmt;        /* Cache for fts3CursorSeekStmt() */
+
+  char *zReadExprlist;
+  char *zWriteExprlist;
+
+  int nNodeSize;                  /* Soft limit for node size */
+  u8 bFts4;                       /* True for FTS4, false for FTS3 */
+  u8 bHasStat;                    /* True if %_stat table exists (2==unknown) */
+  u8 bHasDocsize;                 /* True if %_docsize table exists */
+  u8 bDescIdx;                    /* True if doclists are in reverse order */
+  u8 bIgnoreSavepoint;            /* True to ignore xSavepoint invocations */
+  int nPgsz;                      /* Page size for host database */
+  char *zSegmentsTbl;             /* Name of %_segments table */
+  sqlite3_blob *pSegments;        /* Blob handle open on %_segments table */
+  int iSavepoint;
+
+  /* 
+  ** The following array of hash tables is used to buffer pending index 
+  ** updates during transactions. All pending updates buffered at any one
+  ** time must share a common language-id (see the FTS4 langid= feature).
+  ** The current language id is stored in variable iPrevLangid.
+  **
+  ** A single FTS4 table may have multiple full-text indexes. For each index
+  ** there is an entry in the aIndex[] array. Index 0 is an index of all the
+  ** terms that appear in the document set. Each subsequent index in aIndex[]
+  ** is an index of prefixes of a specific length.
+  **
+  ** Variable nPendingData contains an estimate the memory consumed by the 
+  ** pending data structures, including hash table overhead, but not including
+  ** malloc overhead.  When nPendingData exceeds nMaxPendingData, all hash
+  ** tables are flushed to disk. Variable iPrevDocid is the docid of the most 
+  ** recently inserted record.
+  */
+  int nIndex;                     /* Size of aIndex[] */
+  struct Fts3Index {
+    int nPrefix;                  /* Prefix length (0 for main terms index) */
+    Fts3Hash hPending;            /* Pending terms table for this index */
+  } *aIndex;
+  int nMaxPendingData;            /* Max pending data before flush to disk */
+  int nPendingData;               /* Current bytes of pending data */
+  sqlite_int64 iPrevDocid;        /* Docid of most recently inserted document */
+  int iPrevLangid;                /* Langid of recently inserted document */
+  int bPrevDelete;                /* True if last operation was a delete */
+
+#if defined(SQLITE_DEBUG) || defined(SQLITE_COVERAGE_TEST)
+  /* State variables used for validating that the transaction control
+  ** methods of the virtual table are called at appropriate times.  These
+  ** values do not contribute to FTS functionality; they are used for
+  ** verifying the operation of the SQLite core.
+  */
+  int inTransaction;     /* True after xBegin but before xCommit/xRollback */
+  int mxSavepoint;       /* Largest valid xSavepoint integer */
+#endif
+
+#if defined(SQLITE_DEBUG) || defined(SQLITE_TEST)
+  /* True to disable the incremental doclist optimization. This is controled
+  ** by special insert command 'test-no-incr-doclist'.  */
+  int bNoIncrDoclist;
+
+  /* Number of segments in a level */
+  int nMergeCount;
+#endif
+};
+
+/* Macro to find the number of segments to merge */
+#if defined(SQLITE_DEBUG) || defined(SQLITE_TEST)
+# define MergeCount(P) ((P)->nMergeCount)
+#else
+# define MergeCount(P) FTS3_MERGE_COUNT
+#endif
+
+/*
+** When the core wants to read from the virtual table, it creates a
+** virtual table cursor (an instance of the following structure) using
+** the xOpen method. Cursors are destroyed using the xClose method.
+*/
+struct Fts3Cursor {
+  sqlite3_vtab_cursor base;       /* Base class used by SQLite core */
+  i16 eSearch;                    /* Search strategy (see below) */
+  u8 isEof;                       /* True if at End Of Results */
+  u8 isRequireSeek;               /* True if must seek pStmt to %_content row */
+  u8 bSeekStmt;                   /* True if pStmt is a seek */
+  sqlite3_stmt *pStmt;            /* Prepared statement in use by the cursor */
+  Fts3Expr *pExpr;                /* Parsed MATCH query string */
+  int iLangid;                    /* Language being queried for */
+  int nPhrase;                    /* Number of matchable phrases in query */
+  Fts3DeferredToken *pDeferred;   /* Deferred search tokens, if any */
+  sqlite3_int64 iPrevId;          /* Previous id read from aDoclist */
+  char *pNextId;                  /* Pointer into the body of aDoclist */
+  char *aDoclist;                 /* List of docids for full-text queries */
+  int nDoclist;                   /* Size of buffer at aDoclist */
+  u8 bDesc;                       /* True to sort in descending order */
+  int eEvalmode;                  /* An FTS3_EVAL_XX constant */
+  int nRowAvg;                    /* Average size of database rows, in pages */
+  sqlite3_int64 nDoc;             /* Documents in table */
+  i64 iMinDocid;                  /* Minimum docid to return */
+  i64 iMaxDocid;                  /* Maximum docid to return */
+  int isMatchinfoNeeded;          /* True when aMatchinfo[] needs filling in */
+  MatchinfoBuffer *pMIBuffer;     /* Buffer for matchinfo data */
+};
+
+#define FTS3_EVAL_FILTER    0
+#define FTS3_EVAL_NEXT      1
+#define FTS3_EVAL_MATCHINFO 2
+
+/*
+** The Fts3Cursor.eSearch member is always set to one of the following.
+** Actualy, Fts3Cursor.eSearch can be greater than or equal to
+** FTS3_FULLTEXT_SEARCH.  If so, then Fts3Cursor.eSearch - 2 is the index
+** of the column to be searched.  For example, in
+**
+**     CREATE VIRTUAL TABLE ex1 USING fts3(a,b,c,d);
+**     SELECT docid FROM ex1 WHERE b MATCH 'one two three';
+** 
+** Because the LHS of the MATCH operator is 2nd column "b",
+** Fts3Cursor.eSearch will be set to FTS3_FULLTEXT_SEARCH+1.  (+0 for a,
+** +1 for b, +2 for c, +3 for d.)  If the LHS of MATCH were "ex1" 
+** indicating that all columns should be searched,
+** then eSearch would be set to FTS3_FULLTEXT_SEARCH+4.
+*/
+#define FTS3_FULLSCAN_SEARCH 0    /* Linear scan of %_content table */
+#define FTS3_DOCID_SEARCH    1    /* Lookup by rowid on %_content table */
+#define FTS3_FULLTEXT_SEARCH 2    /* Full-text index search */
+
+/*
+** The lower 16-bits of the sqlite3_index_info.idxNum value set by
+** the xBestIndex() method contains the Fts3Cursor.eSearch value described
+** above. The upper 16-bits contain a combination of the following
+** bits, used to describe extra constraints on full-text searches.
+*/
+#define FTS3_HAVE_LANGID    0x00010000      /* languageid=? */
+#define FTS3_HAVE_DOCID_GE  0x00020000      /* docid>=? */
+#define FTS3_HAVE_DOCID_LE  0x00040000      /* docid<=? */
+
+struct Fts3Doclist {
+  char *aAll;                    /* Array containing doclist (or NULL) */
+  int nAll;                      /* Size of a[] in bytes */
+  char *pNextDocid;              /* Pointer to next docid */
+
+  sqlite3_int64 iDocid;          /* Current docid (if pList!=0) */
+  int bFreeList;                 /* True if pList should be sqlite3_free()d */
+  char *pList;                   /* Pointer to position list following iDocid */
+  int nList;                     /* Length of position list */
+};
+
+/*
+** A "phrase" is a sequence of one or more tokens that must match in
+** sequence.  A single token is the base case and the most common case.
+** For a sequence of tokens contained in double-quotes (i.e. "one two three")
+** nToken will be the number of tokens in the string.
+*/
+struct Fts3PhraseToken {
+  char *z;                        /* Text of the token */
+  int n;                          /* Number of bytes in buffer z */
+  int isPrefix;                   /* True if token ends with a "*" character */
+  int bFirst;                     /* True if token must appear at position 0 */
+
+  /* Variables above this point are populated when the expression is
+  ** parsed (by code in fts3_expr.c). Below this point the variables are
+  ** used when evaluating the expression. */
+  Fts3DeferredToken *pDeferred;   /* Deferred token object for this token */
+  Fts3MultiSegReader *pSegcsr;    /* Segment-reader for this token */
+};
+
+struct Fts3Phrase {
+  /* Cache of doclist for this phrase. */
+  Fts3Doclist doclist;
+  int bIncr;                 /* True if doclist is loaded incrementally */
+  int iDoclistToken;
+
+  /* Used by sqlite3Fts3EvalPhrasePoslist() if this is a descendent of an
+  ** OR condition.  */
+  char *pOrPoslist;
+  i64 iOrDocid;
+
+  /* Variables below this point are populated by fts3_expr.c when parsing 
+  ** a MATCH expression. Everything above is part of the evaluation phase. 
+  */
+  int nToken;                /* Number of tokens in the phrase */
+  int iColumn;               /* Index of column this phrase must match */
+  Fts3PhraseToken aToken[1]; /* One entry for each token in the phrase */
+};
+
+/*
+** A tree of these objects forms the RHS of a MATCH operator.
+**
+** If Fts3Expr.eType is FTSQUERY_PHRASE and isLoaded is true, then aDoclist 
+** points to a malloced buffer, size nDoclist bytes, containing the results 
+** of this phrase query in FTS3 doclist format. As usual, the initial 
+** "Length" field found in doclists stored on disk is omitted from this 
+** buffer.
+**
+** Variable aMI is used only for FTSQUERY_NEAR nodes to store the global
+** matchinfo data. If it is not NULL, it points to an array of size nCol*3,
+** where nCol is the number of columns in the queried FTS table. The array
+** is populated as follows:
+**
+**   aMI[iCol*3 + 0] = Undefined
+**   aMI[iCol*3 + 1] = Number of occurrences
+**   aMI[iCol*3 + 2] = Number of rows containing at least one instance
+**
+** The aMI array is allocated using sqlite3_malloc(). It should be freed 
+** when the expression node is.
+*/
+struct Fts3Expr {
+  int eType;                 /* One of the FTSQUERY_XXX values defined below */
+  int nNear;                 /* Valid if eType==FTSQUERY_NEAR */
+  Fts3Expr *pParent;         /* pParent->pLeft==this or pParent->pRight==this */
+  Fts3Expr *pLeft;           /* Left operand */
+  Fts3Expr *pRight;          /* Right operand */
+  Fts3Phrase *pPhrase;       /* Valid if eType==FTSQUERY_PHRASE */
+
+  /* The following are used by the fts3_eval.c module. */
+  sqlite3_int64 iDocid;      /* Current docid */
+  u8 bEof;                   /* True this expression is at EOF already */
+  u8 bStart;                 /* True if iDocid is valid */
+  u8 bDeferred;              /* True if this expression is entirely deferred */
+
+  /* The following are used by the fts3_snippet.c module. */
+  int iPhrase;               /* Index of this phrase in matchinfo() results */
+  u32 *aMI;                  /* See above */
+};
+
+/*
+** Candidate values for Fts3Query.eType. Note that the order of the first
+** four values is in order of precedence when parsing expressions. For 
+** example, the following:
+**
+**   "a OR b AND c NOT d NEAR e"
+**
+** is equivalent to:
+**
+**   "a OR (b AND (c NOT (d NEAR e)))"
+*/
+#define FTSQUERY_NEAR   1
+#define FTSQUERY_NOT    2
+#define FTSQUERY_AND    3
+#define FTSQUERY_OR     4
+#define FTSQUERY_PHRASE 5
+
+
+/* fts3_write.c */
+int sqlite3Fts3UpdateMethod(sqlite3_vtab*,int,sqlite3_value**,sqlite3_int64*);
+int sqlite3Fts3PendingTermsFlush(Fts3Table *);
+void sqlite3Fts3PendingTermsClear(Fts3Table *);
+int sqlite3Fts3Optimize(Fts3Table *);
+int sqlite3Fts3SegReaderNew(int, int, sqlite3_int64,
+  sqlite3_int64, sqlite3_int64, const char *, int, Fts3SegReader**);
+int sqlite3Fts3SegReaderPending(
+  Fts3Table*,int,const char*,int,int,Fts3SegReader**);
+void sqlite3Fts3SegReaderFree(Fts3SegReader *);
+int sqlite3Fts3AllSegdirs(Fts3Table*, int, int, int, sqlite3_stmt **);
+int sqlite3Fts3ReadBlock(Fts3Table*, sqlite3_int64, char **, int*, int*);
+
+int sqlite3Fts3SelectDoctotal(Fts3Table *, sqlite3_stmt **);
+int sqlite3Fts3SelectDocsize(Fts3Table *, sqlite3_int64, sqlite3_stmt **);
+
+#ifndef SQLITE_DISABLE_FTS4_DEFERRED
+void sqlite3Fts3FreeDeferredTokens(Fts3Cursor *);
+int sqlite3Fts3DeferToken(Fts3Cursor *, Fts3PhraseToken *, int);
+int sqlite3Fts3CacheDeferredDoclists(Fts3Cursor *);
+void sqlite3Fts3FreeDeferredDoclists(Fts3Cursor *);
+int sqlite3Fts3DeferredTokenList(Fts3DeferredToken *, char **, int *);
+#else
+# define sqlite3Fts3FreeDeferredTokens(x)
+# define sqlite3Fts3DeferToken(x,y,z) SQLITE_OK
+# define sqlite3Fts3CacheDeferredDoclists(x) SQLITE_OK
+# define sqlite3Fts3FreeDeferredDoclists(x)
+# define sqlite3Fts3DeferredTokenList(x,y,z) SQLITE_OK
+#endif
+
+void sqlite3Fts3SegmentsClose(Fts3Table *);
+int sqlite3Fts3MaxLevel(Fts3Table *, int *);
+
+/* Special values interpreted by sqlite3SegReaderCursor() */
+#define FTS3_SEGCURSOR_PENDING        -1
+#define FTS3_SEGCURSOR_ALL            -2
+
+int sqlite3Fts3SegReaderStart(Fts3Table*, Fts3MultiSegReader*, Fts3SegFilter*);
+int sqlite3Fts3SegReaderStep(Fts3Table *, Fts3MultiSegReader *);
+void sqlite3Fts3SegReaderFinish(Fts3MultiSegReader *);
+
+int sqlite3Fts3SegReaderCursor(Fts3Table *, 
+    int, int, int, const char *, int, int, int, Fts3MultiSegReader *);
+
+/* Flags allowed as part of the 4th argument to SegmentReaderIterate() */
+#define FTS3_SEGMENT_REQUIRE_POS   0x00000001
+#define FTS3_SEGMENT_IGNORE_EMPTY  0x00000002
+#define FTS3_SEGMENT_COLUMN_FILTER 0x00000004
+#define FTS3_SEGMENT_PREFIX        0x00000008
+#define FTS3_SEGMENT_SCAN          0x00000010
+#define FTS3_SEGMENT_FIRST         0x00000020
+
+/* Type passed as 4th argument to SegmentReaderIterate() */
+struct Fts3SegFilter {
+  const char *zTerm;
+  int nTerm;
+  int iCol;
+  int flags;
+};
+
+struct Fts3MultiSegReader {
+  /* Used internally by sqlite3Fts3SegReaderXXX() calls */
+  Fts3SegReader **apSegment;      /* Array of Fts3SegReader objects */
+  int nSegment;                   /* Size of apSegment array */
+  int nAdvance;                   /* How many seg-readers to advance */
+  Fts3SegFilter *pFilter;         /* Pointer to filter object */
+  char *aBuffer;                  /* Buffer to merge doclists in */
+  i64 nBuffer;                    /* Allocated size of aBuffer[] in bytes */
+
+  int iColFilter;                 /* If >=0, filter for this column */
+  int bRestart;
+
+  /* Used by fts3.c only. */
+  int nCost;                      /* Cost of running iterator */
+  int bLookup;                    /* True if a lookup of a single entry. */
+
+  /* Output values. Valid only after Fts3SegReaderStep() returns SQLITE_ROW. */
+  char *zTerm;                    /* Pointer to term buffer */
+  int nTerm;                      /* Size of zTerm in bytes */
+  char *aDoclist;                 /* Pointer to doclist buffer */
+  int nDoclist;                   /* Size of aDoclist[] in bytes */
+};
+
+int sqlite3Fts3Incrmerge(Fts3Table*,int,int);
+
+#define fts3GetVarint32(p, piVal) (                                           \
+  (*(u8*)(p)&0x80) ? sqlite3Fts3GetVarint32(p, piVal) : (*piVal=*(u8*)(p), 1) \
+)
+
+/* fts3.c */
+void sqlite3Fts3ErrMsg(char**,const char*,...);
+int sqlite3Fts3PutVarint(char *, sqlite3_int64);
+int sqlite3Fts3GetVarint(const char *, sqlite_int64 *);
+int sqlite3Fts3GetVarintU(const char *, sqlite_uint64 *);
+int sqlite3Fts3GetVarintBounded(const char*,const char*,sqlite3_int64*);
+int sqlite3Fts3GetVarint32(const char *, int *);
+int sqlite3Fts3VarintLen(sqlite3_uint64);
+void sqlite3Fts3Dequote(char *);
+void sqlite3Fts3DoclistPrev(int,char*,int,char**,sqlite3_int64*,int*,u8*);
+int sqlite3Fts3EvalPhraseStats(Fts3Cursor *, Fts3Expr *, u32 *);
+int sqlite3Fts3FirstFilter(sqlite3_int64, char *, int, char *);
+void sqlite3Fts3CreateStatTable(int*, Fts3Table*);
+int sqlite3Fts3EvalTestDeferred(Fts3Cursor *pCsr, int *pRc);
+int sqlite3Fts3ReadInt(const char *z, int *pnOut);
+
+/* fts3_tokenizer.c */
+const char *sqlite3Fts3NextToken(const char *, int *);
+int sqlite3Fts3InitHashTable(sqlite3 *, Fts3Hash *, const char *);
+int sqlite3Fts3InitTokenizer(Fts3Hash *pHash, const char *, 
+    sqlite3_tokenizer **, char **
+);
+int sqlite3Fts3IsIdChar(char);
+
+/* fts3_snippet.c */
+void sqlite3Fts3Offsets(sqlite3_context*, Fts3Cursor*);
+void sqlite3Fts3Snippet(sqlite3_context *, Fts3Cursor *, const char *,
+  const char *, const char *, int, int
+);
+void sqlite3Fts3Matchinfo(sqlite3_context *, Fts3Cursor *, const char *);
+void sqlite3Fts3MIBufferFree(MatchinfoBuffer *p);
+
+/* fts3_expr.c */
+int sqlite3Fts3ExprParse(sqlite3_tokenizer *, int,
+  char **, int, int, int, const char *, int, Fts3Expr **, char **
+);
+void sqlite3Fts3ExprFree(Fts3Expr *);
+#ifdef SQLITE_TEST
+int sqlite3Fts3ExprInitTestInterface(sqlite3 *db, Fts3Hash*);
+int sqlite3Fts3InitTerm(sqlite3 *db);
+#endif
+void *sqlite3Fts3MallocZero(i64 nByte);
+
+int sqlite3Fts3OpenTokenizer(sqlite3_tokenizer *, int, const char *, int,
+  sqlite3_tokenizer_cursor **
+);
+
+/* fts3_aux.c */
+int sqlite3Fts3InitAux(sqlite3 *db);
+
+void sqlite3Fts3EvalPhraseCleanup(Fts3Phrase *);
+
+int sqlite3Fts3MsrIncrStart(
+    Fts3Table*, Fts3MultiSegReader*, int, const char*, int);
+int sqlite3Fts3MsrIncrNext(
+    Fts3Table *, Fts3MultiSegReader *, sqlite3_int64 *, char **, int *);
+int sqlite3Fts3EvalPhrasePoslist(Fts3Cursor *, Fts3Expr *, int iCol, char **); 
+int sqlite3Fts3MsrOvfl(Fts3Cursor *, Fts3MultiSegReader *, int *);
+int sqlite3Fts3MsrIncrRestart(Fts3MultiSegReader *pCsr);
+
+/* fts3_tokenize_vtab.c */
+int sqlite3Fts3InitTok(sqlite3*, Fts3Hash *, void(*xDestroy)(void*));
+
+/* fts3_unicode2.c (functions generated by parsing unicode text files) */
+#ifndef SQLITE_DISABLE_FTS3_UNICODE
+int sqlite3FtsUnicodeFold(int, int);
+int sqlite3FtsUnicodeIsalnum(int);
+int sqlite3FtsUnicodeIsdiacritic(int);
+#endif
+
+int sqlite3Fts3ExprIterate(Fts3Expr*, int (*x)(Fts3Expr*,int,void*), void*);
+
+int sqlite3Fts3IntegrityCheck(Fts3Table *p, int *pbOk);
+
+#endif /* !SQLITE_CORE || SQLITE_ENABLE_FTS3 */
+#endif /* _FTSINT_H */
diff --git a/ext/fts3/fts3_aux.c b/ext/fts3/fts3_aux.c
new file mode 100644
index 0000000000000000000000000000000000000000..439d57936620734f2e741738ed26968dfff09ba3
--- /dev/null
+++ b/ext/fts3/fts3_aux.c
@@ -0,0 +1,557 @@
+/*
+** 2011 Jan 27
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+*/
+#include "fts3Int.h"
+#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3)
+
+#include <string.h>
+#include <assert.h>
+
+typedef struct Fts3auxTable Fts3auxTable;
+typedef struct Fts3auxCursor Fts3auxCursor;
+
+struct Fts3auxTable {
+  sqlite3_vtab base;              /* Base class used by SQLite core */
+  Fts3Table *pFts3Tab;
+};
+
+struct Fts3auxCursor {
+  sqlite3_vtab_cursor base;       /* Base class used by SQLite core */
+  Fts3MultiSegReader csr;        /* Must be right after "base" */
+  Fts3SegFilter filter;
+  char *zStop;
+  int nStop;                      /* Byte-length of string zStop */
+  int iLangid;                    /* Language id to query */
+  int isEof;                      /* True if cursor is at EOF */
+  sqlite3_int64 iRowid;           /* Current rowid */
+
+  int iCol;                       /* Current value of 'col' column */
+  int nStat;                      /* Size of aStat[] array */
+  struct Fts3auxColstats {
+    sqlite3_int64 nDoc;           /* 'documents' values for current csr row */
+    sqlite3_int64 nOcc;           /* 'occurrences' values for current csr row */
+  } *aStat;
+};
+
+/*
+** Schema of the terms table.
+*/
+#define FTS3_AUX_SCHEMA \
+  "CREATE TABLE x(term, col, documents, occurrences, languageid HIDDEN)"
+
+/*
+** This function does all the work for both the xConnect and xCreate methods.
+** These tables have no persistent representation of their own, so xConnect
+** and xCreate are identical operations.
+*/
+static int fts3auxConnectMethod(
+  sqlite3 *db,                    /* Database connection */
+  void *pUnused,                  /* Unused */
+  int argc,                       /* Number of elements in argv array */
+  const char * const *argv,       /* xCreate/xConnect argument array */
+  sqlite3_vtab **ppVtab,          /* OUT: New sqlite3_vtab object */
+  char **pzErr                    /* OUT: sqlite3_malloc'd error message */
+){
+  char const *zDb;                /* Name of database (e.g. "main") */
+  char const *zFts3;              /* Name of fts3 table */
+  int nDb;                        /* Result of strlen(zDb) */
+  int nFts3;                      /* Result of strlen(zFts3) */
+  sqlite3_int64 nByte;            /* Bytes of space to allocate here */
+  int rc;                         /* value returned by declare_vtab() */
+  Fts3auxTable *p;                /* Virtual table object to return */
+
+  UNUSED_PARAMETER(pUnused);
+
+  /* The user should invoke this in one of two forms:
+  **
+  **     CREATE VIRTUAL TABLE xxx USING fts4aux(fts4-table);
+  **     CREATE VIRTUAL TABLE xxx USING fts4aux(fts4-table-db, fts4-table);
+  */
+  if( argc!=4 && argc!=5 ) goto bad_args;
+
+  zDb = argv[1]; 
+  nDb = (int)strlen(zDb);
+  if( argc==5 ){
+    if( nDb==4 && 0==sqlite3_strnicmp("temp", zDb, 4) ){
+      zDb = argv[3]; 
+      nDb = (int)strlen(zDb);
+      zFts3 = argv[4];
+    }else{
+      goto bad_args;
+    }
+  }else{
+    zFts3 = argv[3];
+  }
+  nFts3 = (int)strlen(zFts3);
+
+  rc = sqlite3_declare_vtab(db, FTS3_AUX_SCHEMA);
+  if( rc!=SQLITE_OK ) return rc;
+
+  nByte = sizeof(Fts3auxTable) + sizeof(Fts3Table) + nDb + nFts3 + 2;
+  p = (Fts3auxTable *)sqlite3_malloc64(nByte);
+  if( !p ) return SQLITE_NOMEM;
+  memset(p, 0, nByte);
+
+  p->pFts3Tab = (Fts3Table *)&p[1];
+  p->pFts3Tab->zDb = (char *)&p->pFts3Tab[1];
+  p->pFts3Tab->zName = &p->pFts3Tab->zDb[nDb+1];
+  p->pFts3Tab->db = db;
+  p->pFts3Tab->nIndex = 1;
+
+  memcpy((char *)p->pFts3Tab->zDb, zDb, nDb);
+  memcpy((char *)p->pFts3Tab->zName, zFts3, nFts3);
+  sqlite3Fts3Dequote((char *)p->pFts3Tab->zName);
+
+  *ppVtab = (sqlite3_vtab *)p;
+  return SQLITE_OK;
+
+ bad_args:
+  sqlite3Fts3ErrMsg(pzErr, "invalid arguments to fts4aux constructor");
+  return SQLITE_ERROR;
+}
+
+/*
+** This function does the work for both the xDisconnect and xDestroy methods.
+** These tables have no persistent representation of their own, so xDisconnect
+** and xDestroy are identical operations.
+*/
+static int fts3auxDisconnectMethod(sqlite3_vtab *pVtab){
+  Fts3auxTable *p = (Fts3auxTable *)pVtab;
+  Fts3Table *pFts3 = p->pFts3Tab;
+  int i;
+
+  /* Free any prepared statements held */
+  for(i=0; i<SizeofArray(pFts3->aStmt); i++){
+    sqlite3_finalize(pFts3->aStmt[i]);
+  }
+  sqlite3_free(pFts3->zSegmentsTbl);
+  sqlite3_free(p);
+  return SQLITE_OK;
+}
+
+#define FTS4AUX_EQ_CONSTRAINT 1
+#define FTS4AUX_GE_CONSTRAINT 2
+#define FTS4AUX_LE_CONSTRAINT 4
+
+/*
+** xBestIndex - Analyze a WHERE and ORDER BY clause.
+*/
+static int fts3auxBestIndexMethod(
+  sqlite3_vtab *pVTab, 
+  sqlite3_index_info *pInfo
+){
+  int i;
+  int iEq = -1;
+  int iGe = -1;
+  int iLe = -1;
+  int iLangid = -1;
+  int iNext = 1;                  /* Next free argvIndex value */
+
+  UNUSED_PARAMETER(pVTab);
+
+  /* This vtab delivers always results in "ORDER BY term ASC" order. */
+  if( pInfo->nOrderBy==1 
+   && pInfo->aOrderBy[0].iColumn==0 
+   && pInfo->aOrderBy[0].desc==0
+  ){
+    pInfo->orderByConsumed = 1;
+  }
+
+  /* Search for equality and range constraints on the "term" column. 
+  ** And equality constraints on the hidden "languageid" column. */
+  for(i=0; i<pInfo->nConstraint; i++){
+    if( pInfo->aConstraint[i].usable ){
+      int op = pInfo->aConstraint[i].op;
+      int iCol = pInfo->aConstraint[i].iColumn;
+
+      if( iCol==0 ){
+        if( op==SQLITE_INDEX_CONSTRAINT_EQ ) iEq = i;
+        if( op==SQLITE_INDEX_CONSTRAINT_LT ) iLe = i;
+        if( op==SQLITE_INDEX_CONSTRAINT_LE ) iLe = i;
+        if( op==SQLITE_INDEX_CONSTRAINT_GT ) iGe = i;
+        if( op==SQLITE_INDEX_CONSTRAINT_GE ) iGe = i;
+      }
+      if( iCol==4 ){
+        if( op==SQLITE_INDEX_CONSTRAINT_EQ ) iLangid = i;
+      }
+    }
+  }
+
+  if( iEq>=0 ){
+    pInfo->idxNum = FTS4AUX_EQ_CONSTRAINT;
+    pInfo->aConstraintUsage[iEq].argvIndex = iNext++;
+    pInfo->estimatedCost = 5;
+  }else{
+    pInfo->idxNum = 0;
+    pInfo->estimatedCost = 20000;
+    if( iGe>=0 ){
+      pInfo->idxNum += FTS4AUX_GE_CONSTRAINT;
+      pInfo->aConstraintUsage[iGe].argvIndex = iNext++;
+      pInfo->estimatedCost /= 2;
+    }
+    if( iLe>=0 ){
+      pInfo->idxNum += FTS4AUX_LE_CONSTRAINT;
+      pInfo->aConstraintUsage[iLe].argvIndex = iNext++;
+      pInfo->estimatedCost /= 2;
+    }
+  }
+  if( iLangid>=0 ){
+    pInfo->aConstraintUsage[iLangid].argvIndex = iNext++;
+    pInfo->estimatedCost--;
+  }
+
+  return SQLITE_OK;
+}
+
+/*
+** xOpen - Open a cursor.
+*/
+static int fts3auxOpenMethod(sqlite3_vtab *pVTab, sqlite3_vtab_cursor **ppCsr){
+  Fts3auxCursor *pCsr;            /* Pointer to cursor object to return */
+
+  UNUSED_PARAMETER(pVTab);
+
+  pCsr = (Fts3auxCursor *)sqlite3_malloc(sizeof(Fts3auxCursor));
+  if( !pCsr ) return SQLITE_NOMEM;
+  memset(pCsr, 0, sizeof(Fts3auxCursor));
+
+  *ppCsr = (sqlite3_vtab_cursor *)pCsr;
+  return SQLITE_OK;
+}
+
+/*
+** xClose - Close a cursor.
+*/
+static int fts3auxCloseMethod(sqlite3_vtab_cursor *pCursor){
+  Fts3Table *pFts3 = ((Fts3auxTable *)pCursor->pVtab)->pFts3Tab;
+  Fts3auxCursor *pCsr = (Fts3auxCursor *)pCursor;
+
+  sqlite3Fts3SegmentsClose(pFts3);
+  sqlite3Fts3SegReaderFinish(&pCsr->csr);
+  sqlite3_free((void *)pCsr->filter.zTerm);
+  sqlite3_free(pCsr->zStop);
+  sqlite3_free(pCsr->aStat);
+  sqlite3_free(pCsr);
+  return SQLITE_OK;
+}
+
+static int fts3auxGrowStatArray(Fts3auxCursor *pCsr, int nSize){
+  if( nSize>pCsr->nStat ){
+    struct Fts3auxColstats *aNew;
+    aNew = (struct Fts3auxColstats *)sqlite3_realloc64(pCsr->aStat, 
+        sizeof(struct Fts3auxColstats) * nSize
+    );
+    if( aNew==0 ) return SQLITE_NOMEM;
+    memset(&aNew[pCsr->nStat], 0, 
+        sizeof(struct Fts3auxColstats) * (nSize - pCsr->nStat)
+    );
+    pCsr->aStat = aNew;
+    pCsr->nStat = nSize;
+  }
+  return SQLITE_OK;
+}
+
+/*
+** xNext - Advance the cursor to the next row, if any.
+*/
+static int fts3auxNextMethod(sqlite3_vtab_cursor *pCursor){
+  Fts3auxCursor *pCsr = (Fts3auxCursor *)pCursor;
+  Fts3Table *pFts3 = ((Fts3auxTable *)pCursor->pVtab)->pFts3Tab;
+  int rc;
+
+  /* Increment our pretend rowid value. */
+  pCsr->iRowid++;
+
+  for(pCsr->iCol++; pCsr->iCol<pCsr->nStat; pCsr->iCol++){
+    if( pCsr->aStat[pCsr->iCol].nDoc>0 ) return SQLITE_OK;
+  }
+
+  rc = sqlite3Fts3SegReaderStep(pFts3, &pCsr->csr);
+  if( rc==SQLITE_ROW ){
+    int i = 0;
+    int nDoclist = pCsr->csr.nDoclist;
+    char *aDoclist = pCsr->csr.aDoclist;
+    int iCol;
+
+    int eState = 0;
+
+    if( pCsr->zStop ){
+      int n = (pCsr->nStop<pCsr->csr.nTerm) ? pCsr->nStop : pCsr->csr.nTerm;
+      int mc = memcmp(pCsr->zStop, pCsr->csr.zTerm, n);
+      if( mc<0 || (mc==0 && pCsr->csr.nTerm>pCsr->nStop) ){
+        pCsr->isEof = 1;
+        return SQLITE_OK;
+      }
+    }
+
+    if( fts3auxGrowStatArray(pCsr, 2) ) return SQLITE_NOMEM;
+    memset(pCsr->aStat, 0, sizeof(struct Fts3auxColstats) * pCsr->nStat);
+    iCol = 0;
+    rc = SQLITE_OK;
+
+    while( i<nDoclist ){
+      sqlite3_int64 v = 0;
+
+      i += sqlite3Fts3GetVarint(&aDoclist[i], &v);
+      switch( eState ){
+        /* State 0. In this state the integer just read was a docid. */
+        case 0:
+          pCsr->aStat[0].nDoc++;
+          eState = 1;
+          iCol = 0;
+          break;
+
+        /* State 1. In this state we are expecting either a 1, indicating
+        ** that the following integer will be a column number, or the
+        ** start of a position list for column 0.  
+        ** 
+        ** The only difference between state 1 and state 2 is that if the
+        ** integer encountered in state 1 is not 0 or 1, then we need to
+        ** increment the column 0 "nDoc" count for this term.
+        */
+        case 1:
+          assert( iCol==0 );
+          if( v>1 ){
+            pCsr->aStat[1].nDoc++;
+          }
+          eState = 2;
+          /* fall through */
+
+        case 2:
+          if( v==0 ){       /* 0x00. Next integer will be a docid. */
+            eState = 0;
+          }else if( v==1 ){ /* 0x01. Next integer will be a column number. */
+            eState = 3;
+          }else{            /* 2 or greater. A position. */
+            pCsr->aStat[iCol+1].nOcc++;
+            pCsr->aStat[0].nOcc++;
+          }
+          break;
+
+        /* State 3. The integer just read is a column number. */
+        default: assert( eState==3 );
+          iCol = (int)v;
+          if( iCol<1 ){
+            rc = SQLITE_CORRUPT_VTAB;
+            break;
+          }
+          if( fts3auxGrowStatArray(pCsr, iCol+2) ) return SQLITE_NOMEM;
+          pCsr->aStat[iCol+1].nDoc++;
+          eState = 2;
+          break;
+      }
+    }
+
+    pCsr->iCol = 0;
+  }else{
+    pCsr->isEof = 1;
+  }
+  return rc;
+}
+
+/*
+** xFilter - Initialize a cursor to point at the start of its data.
+*/
+static int fts3auxFilterMethod(
+  sqlite3_vtab_cursor *pCursor,   /* The cursor used for this query */
+  int idxNum,                     /* Strategy index */
+  const char *idxStr,             /* Unused */
+  int nVal,                       /* Number of elements in apVal */
+  sqlite3_value **apVal           /* Arguments for the indexing scheme */
+){
+  Fts3auxCursor *pCsr = (Fts3auxCursor *)pCursor;
+  Fts3Table *pFts3 = ((Fts3auxTable *)pCursor->pVtab)->pFts3Tab;
+  int rc;
+  int isScan = 0;
+  int iLangVal = 0;               /* Language id to query */
+
+  int iEq = -1;                   /* Index of term=? value in apVal */
+  int iGe = -1;                   /* Index of term>=? value in apVal */
+  int iLe = -1;                   /* Index of term<=? value in apVal */
+  int iLangid = -1;               /* Index of languageid=? value in apVal */
+  int iNext = 0;
+
+  UNUSED_PARAMETER(nVal);
+  UNUSED_PARAMETER(idxStr);
+
+  assert( idxStr==0 );
+  assert( idxNum==FTS4AUX_EQ_CONSTRAINT || idxNum==0
+       || idxNum==FTS4AUX_LE_CONSTRAINT || idxNum==FTS4AUX_GE_CONSTRAINT
+       || idxNum==(FTS4AUX_LE_CONSTRAINT|FTS4AUX_GE_CONSTRAINT)
+  );
+
+  if( idxNum==FTS4AUX_EQ_CONSTRAINT ){
+    iEq = iNext++;
+  }else{
+    isScan = 1;
+    if( idxNum & FTS4AUX_GE_CONSTRAINT ){
+      iGe = iNext++;
+    }
+    if( idxNum & FTS4AUX_LE_CONSTRAINT ){
+      iLe = iNext++;
+    }
+  }
+  if( iNext<nVal ){
+    iLangid = iNext++;
+  }
+
+  /* In case this cursor is being reused, close and zero it. */
+  testcase(pCsr->filter.zTerm);
+  sqlite3Fts3SegReaderFinish(&pCsr->csr);
+  sqlite3_free((void *)pCsr->filter.zTerm);
+  sqlite3_free(pCsr->aStat);
+  sqlite3_free(pCsr->zStop);
+  memset(&pCsr->csr, 0, ((u8*)&pCsr[1]) - (u8*)&pCsr->csr);
+
+  pCsr->filter.flags = FTS3_SEGMENT_REQUIRE_POS|FTS3_SEGMENT_IGNORE_EMPTY;
+  if( isScan ) pCsr->filter.flags |= FTS3_SEGMENT_SCAN;
+
+  if( iEq>=0 || iGe>=0 ){
+    const unsigned char *zStr = sqlite3_value_text(apVal[0]);
+    assert( (iEq==0 && iGe==-1) || (iEq==-1 && iGe==0) );
+    if( zStr ){
+      pCsr->filter.zTerm = sqlite3_mprintf("%s", zStr);
+      if( pCsr->filter.zTerm==0 ) return SQLITE_NOMEM;
+      pCsr->filter.nTerm = (int)strlen(pCsr->filter.zTerm);
+    }
+  }
+
+  if( iLe>=0 ){
+    pCsr->zStop = sqlite3_mprintf("%s", sqlite3_value_text(apVal[iLe]));
+    if( pCsr->zStop==0 ) return SQLITE_NOMEM;
+    pCsr->nStop = (int)strlen(pCsr->zStop);
+  }
+  
+  if( iLangid>=0 ){
+    iLangVal = sqlite3_value_int(apVal[iLangid]);
+
+    /* If the user specified a negative value for the languageid, use zero
+    ** instead. This works, as the "languageid=?" constraint will also
+    ** be tested by the VDBE layer. The test will always be false (since
+    ** this module will not return a row with a negative languageid), and
+    ** so the overall query will return zero rows.  */
+    if( iLangVal<0 ) iLangVal = 0;
+  }
+  pCsr->iLangid = iLangVal;
+
+  rc = sqlite3Fts3SegReaderCursor(pFts3, iLangVal, 0, FTS3_SEGCURSOR_ALL,
+      pCsr->filter.zTerm, pCsr->filter.nTerm, 0, isScan, &pCsr->csr
+  );
+  if( rc==SQLITE_OK ){
+    rc = sqlite3Fts3SegReaderStart(pFts3, &pCsr->csr, &pCsr->filter);
+  }
+
+  if( rc==SQLITE_OK ) rc = fts3auxNextMethod(pCursor);
+  return rc;
+}
+
+/*
+** xEof - Return true if the cursor is at EOF, or false otherwise.
+*/
+static int fts3auxEofMethod(sqlite3_vtab_cursor *pCursor){
+  Fts3auxCursor *pCsr = (Fts3auxCursor *)pCursor;
+  return pCsr->isEof;
+}
+
+/*
+** xColumn - Return a column value.
+*/
+static int fts3auxColumnMethod(
+  sqlite3_vtab_cursor *pCursor,   /* Cursor to retrieve value from */
+  sqlite3_context *pCtx,          /* Context for sqlite3_result_xxx() calls */
+  int iCol                        /* Index of column to read value from */
+){
+  Fts3auxCursor *p = (Fts3auxCursor *)pCursor;
+
+  assert( p->isEof==0 );
+  switch( iCol ){
+    case 0: /* term */
+      sqlite3_result_text(pCtx, p->csr.zTerm, p->csr.nTerm, SQLITE_TRANSIENT);
+      break;
+
+    case 1: /* col */
+      if( p->iCol ){
+        sqlite3_result_int(pCtx, p->iCol-1);
+      }else{
+        sqlite3_result_text(pCtx, "*", -1, SQLITE_STATIC);
+      }
+      break;
+
+    case 2: /* documents */
+      sqlite3_result_int64(pCtx, p->aStat[p->iCol].nDoc);
+      break;
+
+    case 3: /* occurrences */
+      sqlite3_result_int64(pCtx, p->aStat[p->iCol].nOcc);
+      break;
+
+    default: /* languageid */
+      assert( iCol==4 );
+      sqlite3_result_int(pCtx, p->iLangid);
+      break;
+  }
+
+  return SQLITE_OK;
+}
+
+/*
+** xRowid - Return the current rowid for the cursor.
+*/
+static int fts3auxRowidMethod(
+  sqlite3_vtab_cursor *pCursor,   /* Cursor to retrieve value from */
+  sqlite_int64 *pRowid            /* OUT: Rowid value */
+){
+  Fts3auxCursor *pCsr = (Fts3auxCursor *)pCursor;
+  *pRowid = pCsr->iRowid;
+  return SQLITE_OK;
+}
+
+/*
+** Register the fts3aux module with database connection db. Return SQLITE_OK
+** if successful or an error code if sqlite3_create_module() fails.
+*/
+int sqlite3Fts3InitAux(sqlite3 *db){
+  static const sqlite3_module fts3aux_module = {
+     0,                           /* iVersion      */
+     fts3auxConnectMethod,        /* xCreate       */
+     fts3auxConnectMethod,        /* xConnect      */
+     fts3auxBestIndexMethod,      /* xBestIndex    */
+     fts3auxDisconnectMethod,     /* xDisconnect   */
+     fts3auxDisconnectMethod,     /* xDestroy      */
+     fts3auxOpenMethod,           /* xOpen         */
+     fts3auxCloseMethod,          /* xClose        */
+     fts3auxFilterMethod,         /* xFilter       */
+     fts3auxNextMethod,           /* xNext         */
+     fts3auxEofMethod,            /* xEof          */
+     fts3auxColumnMethod,         /* xColumn       */
+     fts3auxRowidMethod,          /* xRowid        */
+     0,                           /* xUpdate       */
+     0,                           /* xBegin        */
+     0,                           /* xSync         */
+     0,                           /* xCommit       */
+     0,                           /* xRollback     */
+     0,                           /* xFindFunction */
+     0,                           /* xRename       */
+     0,                           /* xSavepoint    */
+     0,                           /* xRelease      */
+     0,                           /* xRollbackTo   */
+     0,                           /* xShadowName   */
+     0                            /* xIntegrity    */
+  };
+  int rc;                         /* Return code */
+
+  rc = sqlite3_create_module(db, "fts4aux", &fts3aux_module, 0);
+  return rc;
+}
+
+#endif /* !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3) */
diff --git a/ext/fts3/fts3_expr.c b/ext/fts3/fts3_expr.c
new file mode 100644
index 0000000000000000000000000000000000000000..9e201b168415c81ababc35826ba583e81325ba70
--- /dev/null
+++ b/ext/fts3/fts3_expr.c
@@ -0,0 +1,1292 @@
+/*
+** 2008 Nov 28
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This module contains code that implements a parser for fts3 query strings
+** (the right-hand argument to the MATCH operator). Because the supported 
+** syntax is relatively simple, the whole tokenizer/parser system is
+** hand-coded. 
+*/
+#include "fts3Int.h"
+#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3)
+
+/*
+** By default, this module parses the legacy syntax that has been 
+** traditionally used by fts3. Or, if SQLITE_ENABLE_FTS3_PARENTHESIS
+** is defined, then it uses the new syntax. The differences between
+** the new and the old syntaxes are:
+**
+**  a) The new syntax supports parenthesis. The old does not.
+**
+**  b) The new syntax supports the AND and NOT operators. The old does not.
+**
+**  c) The old syntax supports the "-" token qualifier. This is not 
+**     supported by the new syntax (it is replaced by the NOT operator).
+**
+**  d) When using the old syntax, the OR operator has a greater precedence
+**     than an implicit AND. When using the new, both implicity and explicit
+**     AND operators have a higher precedence than OR.
+**
+** If compiled with SQLITE_TEST defined, then this module exports the
+** symbol "int sqlite3_fts3_enable_parentheses". Setting this variable
+** to zero causes the module to use the old syntax. If it is set to 
+** non-zero the new syntax is activated. This is so both syntaxes can
+** be tested using a single build of testfixture.
+**
+** The following describes the syntax supported by the fts3 MATCH
+** operator in a similar format to that used by the lemon parser
+** generator. This module does not use actually lemon, it uses a
+** custom parser.
+**
+**   query ::= andexpr (OR andexpr)*.
+**
+**   andexpr ::= notexpr (AND? notexpr)*.
+**
+**   notexpr ::= nearexpr (NOT nearexpr|-TOKEN)*.
+**   notexpr ::= LP query RP.
+**
+**   nearexpr ::= phrase (NEAR distance_opt nearexpr)*.
+**
+**   distance_opt ::= .
+**   distance_opt ::= / INTEGER.
+**
+**   phrase ::= TOKEN.
+**   phrase ::= COLUMN:TOKEN.
+**   phrase ::= "TOKEN TOKEN TOKEN...".
+*/
+
+#ifdef SQLITE_TEST
+int sqlite3_fts3_enable_parentheses = 0;
+#else
+# ifdef SQLITE_ENABLE_FTS3_PARENTHESIS 
+#  define sqlite3_fts3_enable_parentheses 1
+# else
+#  define sqlite3_fts3_enable_parentheses 0
+# endif
+#endif
+
+/*
+** Default span for NEAR operators.
+*/
+#define SQLITE_FTS3_DEFAULT_NEAR_PARAM 10
+
+#include <string.h>
+#include <assert.h>
+
+/*
+** isNot:
+**   This variable is used by function getNextNode(). When getNextNode() is
+**   called, it sets ParseContext.isNot to true if the 'next node' is a 
+**   FTSQUERY_PHRASE with a unary "-" attached to it. i.e. "mysql" in the
+**   FTS3 query "sqlite -mysql". Otherwise, ParseContext.isNot is set to
+**   zero.
+*/
+typedef struct ParseContext ParseContext;
+struct ParseContext {
+  sqlite3_tokenizer *pTokenizer;      /* Tokenizer module */
+  int iLangid;                        /* Language id used with tokenizer */
+  const char **azCol;                 /* Array of column names for fts3 table */
+  int bFts4;                          /* True to allow FTS4-only syntax */
+  int nCol;                           /* Number of entries in azCol[] */
+  int iDefaultCol;                    /* Default column to query */
+  int isNot;                          /* True if getNextNode() sees a unary - */
+  sqlite3_context *pCtx;              /* Write error message here */
+  int nNest;                          /* Number of nested brackets */
+};
+
+/*
+** This function is equivalent to the standard isspace() function. 
+**
+** The standard isspace() can be awkward to use safely, because although it
+** is defined to accept an argument of type int, its behavior when passed
+** an integer that falls outside of the range of the unsigned char type
+** is undefined (and sometimes, "undefined" means segfault). This wrapper
+** is defined to accept an argument of type char, and always returns 0 for
+** any values that fall outside of the range of the unsigned char type (i.e.
+** negative values).
+*/
+static int fts3isspace(char c){
+  return c==' ' || c=='\t' || c=='\n' || c=='\r' || c=='\v' || c=='\f';
+}
+
+/*
+** Allocate nByte bytes of memory using sqlite3_malloc(). If successful,
+** zero the memory before returning a pointer to it. If unsuccessful, 
+** return NULL.
+*/
+void *sqlite3Fts3MallocZero(sqlite3_int64 nByte){
+  void *pRet = sqlite3_malloc64(nByte);
+  if( pRet ) memset(pRet, 0, nByte);
+  return pRet;
+}
+
+int sqlite3Fts3OpenTokenizer(
+  sqlite3_tokenizer *pTokenizer,
+  int iLangid,
+  const char *z,
+  int n,
+  sqlite3_tokenizer_cursor **ppCsr
+){
+  sqlite3_tokenizer_module const *pModule = pTokenizer->pModule;
+  sqlite3_tokenizer_cursor *pCsr = 0;
+  int rc;
+
+  rc = pModule->xOpen(pTokenizer, z, n, &pCsr);
+  assert( rc==SQLITE_OK || pCsr==0 );
+  if( rc==SQLITE_OK ){
+    pCsr->pTokenizer = pTokenizer;
+    if( pModule->iVersion>=1 ){
+      rc = pModule->xLanguageid(pCsr, iLangid);
+      if( rc!=SQLITE_OK ){
+        pModule->xClose(pCsr);
+        pCsr = 0;
+      }
+    }
+  }
+  *ppCsr = pCsr;
+  return rc;
+}
+
+/*
+** Function getNextNode(), which is called by fts3ExprParse(), may itself
+** call fts3ExprParse(). So this forward declaration is required.
+*/
+static int fts3ExprParse(ParseContext *, const char *, int, Fts3Expr **, int *);
+
+/*
+** Extract the next token from buffer z (length n) using the tokenizer
+** and other information (column names etc.) in pParse. Create an Fts3Expr
+** structure of type FTSQUERY_PHRASE containing a phrase consisting of this
+** single token and set *ppExpr to point to it. If the end of the buffer is
+** reached before a token is found, set *ppExpr to zero. It is the
+** responsibility of the caller to eventually deallocate the allocated 
+** Fts3Expr structure (if any) by passing it to sqlite3_free().
+**
+** Return SQLITE_OK if successful, or SQLITE_NOMEM if a memory allocation
+** fails.
+*/
+static int getNextToken(
+  ParseContext *pParse,                   /* fts3 query parse context */
+  int iCol,                               /* Value for Fts3Phrase.iColumn */
+  const char *z, int n,                   /* Input string */
+  Fts3Expr **ppExpr,                      /* OUT: expression */
+  int *pnConsumed                         /* OUT: Number of bytes consumed */
+){
+  sqlite3_tokenizer *pTokenizer = pParse->pTokenizer;
+  sqlite3_tokenizer_module const *pModule = pTokenizer->pModule;
+  int rc;
+  sqlite3_tokenizer_cursor *pCursor;
+  Fts3Expr *pRet = 0;
+  int i = 0;
+
+  /* Set variable i to the maximum number of bytes of input to tokenize. */
+  for(i=0; i<n; i++){
+    if( sqlite3_fts3_enable_parentheses && (z[i]=='(' || z[i]==')') ) break;
+    if( z[i]=='"' ) break;
+  }
+
+  *pnConsumed = i;
+  rc = sqlite3Fts3OpenTokenizer(pTokenizer, pParse->iLangid, z, i, &pCursor);
+  if( rc==SQLITE_OK ){
+    const char *zToken;
+    int nToken = 0, iStart = 0, iEnd = 0, iPosition = 0;
+    sqlite3_int64 nByte;                    /* total space to allocate */
+
+    rc = pModule->xNext(pCursor, &zToken, &nToken, &iStart, &iEnd, &iPosition);
+    if( rc==SQLITE_OK ){
+      nByte = sizeof(Fts3Expr) + sizeof(Fts3Phrase) + nToken;
+      pRet = (Fts3Expr *)sqlite3Fts3MallocZero(nByte);
+      if( !pRet ){
+        rc = SQLITE_NOMEM;
+      }else{
+        pRet->eType = FTSQUERY_PHRASE;
+        pRet->pPhrase = (Fts3Phrase *)&pRet[1];
+        pRet->pPhrase->nToken = 1;
+        pRet->pPhrase->iColumn = iCol;
+        pRet->pPhrase->aToken[0].n = nToken;
+        pRet->pPhrase->aToken[0].z = (char *)&pRet->pPhrase[1];
+        memcpy(pRet->pPhrase->aToken[0].z, zToken, nToken);
+
+        if( iEnd<n && z[iEnd]=='*' ){
+          pRet->pPhrase->aToken[0].isPrefix = 1;
+          iEnd++;
+        }
+
+        while( 1 ){
+          if( !sqlite3_fts3_enable_parentheses 
+           && iStart>0 && z[iStart-1]=='-' 
+          ){
+            pParse->isNot = 1;
+            iStart--;
+          }else if( pParse->bFts4 && iStart>0 && z[iStart-1]=='^' ){
+            pRet->pPhrase->aToken[0].bFirst = 1;
+            iStart--;
+          }else{
+            break;
+          }
+        }
+
+      }
+      *pnConsumed = iEnd;
+    }else if( i && rc==SQLITE_DONE ){
+      rc = SQLITE_OK;
+    }
+
+    pModule->xClose(pCursor);
+  }
+  
+  *ppExpr = pRet;
+  return rc;
+}
+
+
+/*
+** Enlarge a memory allocation.  If an out-of-memory allocation occurs,
+** then free the old allocation.
+*/
+static void *fts3ReallocOrFree(void *pOrig, sqlite3_int64 nNew){
+  void *pRet = sqlite3_realloc64(pOrig, nNew);
+  if( !pRet ){
+    sqlite3_free(pOrig);
+  }
+  return pRet;
+}
+
+/*
+** Buffer zInput, length nInput, contains the contents of a quoted string
+** that appeared as part of an fts3 query expression. Neither quote character
+** is included in the buffer. This function attempts to tokenize the entire
+** input buffer and create an Fts3Expr structure of type FTSQUERY_PHRASE 
+** containing the results.
+**
+** If successful, SQLITE_OK is returned and *ppExpr set to point at the
+** allocated Fts3Expr structure. Otherwise, either SQLITE_NOMEM (out of memory
+** error) or SQLITE_ERROR (tokenization error) is returned and *ppExpr set
+** to 0.
+*/
+static int getNextString(
+  ParseContext *pParse,                   /* fts3 query parse context */
+  const char *zInput, int nInput,         /* Input string */
+  Fts3Expr **ppExpr                       /* OUT: expression */
+){
+  sqlite3_tokenizer *pTokenizer = pParse->pTokenizer;
+  sqlite3_tokenizer_module const *pModule = pTokenizer->pModule;
+  int rc;
+  Fts3Expr *p = 0;
+  sqlite3_tokenizer_cursor *pCursor = 0;
+  char *zTemp = 0;
+  int nTemp = 0;
+
+  const int nSpace = sizeof(Fts3Expr) + sizeof(Fts3Phrase);
+  int nToken = 0;
+
+  /* The final Fts3Expr data structure, including the Fts3Phrase,
+  ** Fts3PhraseToken structures token buffers are all stored as a single 
+  ** allocation so that the expression can be freed with a single call to
+  ** sqlite3_free(). Setting this up requires a two pass approach.
+  **
+  ** The first pass, in the block below, uses a tokenizer cursor to iterate
+  ** through the tokens in the expression. This pass uses fts3ReallocOrFree()
+  ** to assemble data in two dynamic buffers:
+  **
+  **   Buffer p: Points to the Fts3Expr structure, followed by the Fts3Phrase
+  **             structure, followed by the array of Fts3PhraseToken 
+  **             structures. This pass only populates the Fts3PhraseToken array.
+  **
+  **   Buffer zTemp: Contains copies of all tokens.
+  **
+  ** The second pass, in the block that begins "if( rc==SQLITE_DONE )" below,
+  ** appends buffer zTemp to buffer p, and fills in the Fts3Expr and Fts3Phrase
+  ** structures.
+  */
+  rc = sqlite3Fts3OpenTokenizer(
+      pTokenizer, pParse->iLangid, zInput, nInput, &pCursor);
+  if( rc==SQLITE_OK ){
+    int ii;
+    for(ii=0; rc==SQLITE_OK; ii++){
+      const char *zByte;
+      int nByte = 0, iBegin = 0, iEnd = 0, iPos = 0;
+      rc = pModule->xNext(pCursor, &zByte, &nByte, &iBegin, &iEnd, &iPos);
+      if( rc==SQLITE_OK ){
+        Fts3PhraseToken *pToken;
+
+        p = fts3ReallocOrFree(p, nSpace + ii*sizeof(Fts3PhraseToken));
+        zTemp = fts3ReallocOrFree(zTemp, nTemp + nByte);
+        if( !zTemp || !p ){
+          rc = SQLITE_NOMEM;
+          goto getnextstring_out;
+        }
+
+        assert( nToken==ii );
+        pToken = &((Fts3Phrase *)(&p[1]))->aToken[ii];
+        memset(pToken, 0, sizeof(Fts3PhraseToken));
+
+        memcpy(&zTemp[nTemp], zByte, nByte);
+        nTemp += nByte;
+
+        pToken->n = nByte;
+        pToken->isPrefix = (iEnd<nInput && zInput[iEnd]=='*');
+        pToken->bFirst = (iBegin>0 && zInput[iBegin-1]=='^');
+        nToken = ii+1;
+      }
+    }
+  }
+
+  if( rc==SQLITE_DONE ){
+    int jj;
+    char *zBuf = 0;
+
+    p = fts3ReallocOrFree(p, nSpace + nToken*sizeof(Fts3PhraseToken) + nTemp);
+    if( !p ){
+      rc = SQLITE_NOMEM;
+      goto getnextstring_out;
+    }
+    memset(p, 0, (char *)&(((Fts3Phrase *)&p[1])->aToken[0])-(char *)p);
+    p->eType = FTSQUERY_PHRASE;
+    p->pPhrase = (Fts3Phrase *)&p[1];
+    p->pPhrase->iColumn = pParse->iDefaultCol;
+    p->pPhrase->nToken = nToken;
+
+    zBuf = (char *)&p->pPhrase->aToken[nToken];
+    assert( nTemp==0 || zTemp );
+    if( zTemp ){
+      memcpy(zBuf, zTemp, nTemp);
+    }
+
+    for(jj=0; jj<p->pPhrase->nToken; jj++){
+      p->pPhrase->aToken[jj].z = zBuf;
+      zBuf += p->pPhrase->aToken[jj].n;
+    }
+    rc = SQLITE_OK;
+  }
+
+ getnextstring_out:
+  if( pCursor ){
+    pModule->xClose(pCursor);
+  }
+  sqlite3_free(zTemp);
+  if( rc!=SQLITE_OK ){
+    sqlite3_free(p);
+    p = 0;
+  }
+  *ppExpr = p;
+  return rc;
+}
+
+/*
+** The output variable *ppExpr is populated with an allocated Fts3Expr 
+** structure, or set to 0 if the end of the input buffer is reached.
+**
+** Returns an SQLite error code. SQLITE_OK if everything works, SQLITE_NOMEM
+** if a malloc failure occurs, or SQLITE_ERROR if a parse error is encountered.
+** If SQLITE_ERROR is returned, pContext is populated with an error message.
+*/
+static int getNextNode(
+  ParseContext *pParse,                   /* fts3 query parse context */
+  const char *z, int n,                   /* Input string */
+  Fts3Expr **ppExpr,                      /* OUT: expression */
+  int *pnConsumed                         /* OUT: Number of bytes consumed */
+){
+  static const struct Fts3Keyword {
+    char *z;                              /* Keyword text */
+    unsigned char n;                      /* Length of the keyword */
+    unsigned char parenOnly;              /* Only valid in paren mode */
+    unsigned char eType;                  /* Keyword code */
+  } aKeyword[] = {
+    { "OR" ,  2, 0, FTSQUERY_OR   },
+    { "AND",  3, 1, FTSQUERY_AND  },
+    { "NOT",  3, 1, FTSQUERY_NOT  },
+    { "NEAR", 4, 0, FTSQUERY_NEAR }
+  };
+  int ii;
+  int iCol;
+  int iColLen;
+  int rc;
+  Fts3Expr *pRet = 0;
+
+  const char *zInput = z;
+  int nInput = n;
+
+  pParse->isNot = 0;
+
+  /* Skip over any whitespace before checking for a keyword, an open or
+  ** close bracket, or a quoted string. 
+  */
+  while( nInput>0 && fts3isspace(*zInput) ){
+    nInput--;
+    zInput++;
+  }
+  if( nInput==0 ){
+    return SQLITE_DONE;
+  }
+
+  /* See if we are dealing with a keyword. */
+  for(ii=0; ii<(int)(sizeof(aKeyword)/sizeof(struct Fts3Keyword)); ii++){
+    const struct Fts3Keyword *pKey = &aKeyword[ii];
+
+    if( (pKey->parenOnly & ~sqlite3_fts3_enable_parentheses)!=0 ){
+      continue;
+    }
+
+    if( nInput>=pKey->n && 0==memcmp(zInput, pKey->z, pKey->n) ){
+      int nNear = SQLITE_FTS3_DEFAULT_NEAR_PARAM;
+      int nKey = pKey->n;
+      char cNext;
+
+      /* If this is a "NEAR" keyword, check for an explicit nearness. */
+      if( pKey->eType==FTSQUERY_NEAR ){
+        assert( nKey==4 );
+        if( zInput[4]=='/' && zInput[5]>='0' && zInput[5]<='9' ){
+          nKey += 1+sqlite3Fts3ReadInt(&zInput[nKey+1], &nNear);
+        }
+      }
+
+      /* At this point this is probably a keyword. But for that to be true,
+      ** the next byte must contain either whitespace, an open or close
+      ** parenthesis, a quote character, or EOF. 
+      */
+      cNext = zInput[nKey];
+      if( fts3isspace(cNext) 
+       || cNext=='"' || cNext=='(' || cNext==')' || cNext==0
+      ){
+        pRet = (Fts3Expr *)sqlite3Fts3MallocZero(sizeof(Fts3Expr));
+        if( !pRet ){
+          return SQLITE_NOMEM;
+        }
+        pRet->eType = pKey->eType;
+        pRet->nNear = nNear;
+        *ppExpr = pRet;
+        *pnConsumed = (int)((zInput - z) + nKey);
+        return SQLITE_OK;
+      }
+
+      /* Turns out that wasn't a keyword after all. This happens if the
+      ** user has supplied a token such as "ORacle". Continue.
+      */
+    }
+  }
+
+  /* See if we are dealing with a quoted phrase. If this is the case, then
+  ** search for the closing quote and pass the whole string to getNextString()
+  ** for processing. This is easy to do, as fts3 has no syntax for escaping
+  ** a quote character embedded in a string.
+  */
+  if( *zInput=='"' ){
+    for(ii=1; ii<nInput && zInput[ii]!='"'; ii++);
+    *pnConsumed = (int)((zInput - z) + ii + 1);
+    if( ii==nInput ){
+      return SQLITE_ERROR;
+    }
+    return getNextString(pParse, &zInput[1], ii-1, ppExpr);
+  }
+
+  if( sqlite3_fts3_enable_parentheses ){
+    if( *zInput=='(' ){
+      int nConsumed = 0;
+      pParse->nNest++;
+#if !defined(SQLITE_MAX_EXPR_DEPTH)
+      if( pParse->nNest>1000 ) return SQLITE_ERROR;
+#elif SQLITE_MAX_EXPR_DEPTH>0
+      if( pParse->nNest>SQLITE_MAX_EXPR_DEPTH ) return SQLITE_ERROR;
+#endif
+      rc = fts3ExprParse(pParse, zInput+1, nInput-1, ppExpr, &nConsumed);
+      *pnConsumed = (int)(zInput - z) + 1 + nConsumed;
+      return rc;
+    }else if( *zInput==')' ){
+      pParse->nNest--;
+      *pnConsumed = (int)((zInput - z) + 1);
+      *ppExpr = 0;
+      return SQLITE_DONE;
+    }
+  }
+
+  /* If control flows to this point, this must be a regular token, or 
+  ** the end of the input. Read a regular token using the sqlite3_tokenizer
+  ** interface. Before doing so, figure out if there is an explicit
+  ** column specifier for the token. 
+  **
+  ** TODO: Strangely, it is not possible to associate a column specifier
+  ** with a quoted phrase, only with a single token. Not sure if this was
+  ** an implementation artifact or an intentional decision when fts3 was
+  ** first implemented. Whichever it was, this module duplicates the 
+  ** limitation.
+  */
+  iCol = pParse->iDefaultCol;
+  iColLen = 0;
+  for(ii=0; ii<pParse->nCol; ii++){
+    const char *zStr = pParse->azCol[ii];
+    int nStr = (int)strlen(zStr);
+    if( nInput>nStr && zInput[nStr]==':' 
+     && sqlite3_strnicmp(zStr, zInput, nStr)==0 
+    ){
+      iCol = ii;
+      iColLen = (int)((zInput - z) + nStr + 1);
+      break;
+    }
+  }
+  rc = getNextToken(pParse, iCol, &z[iColLen], n-iColLen, ppExpr, pnConsumed);
+  *pnConsumed += iColLen;
+  return rc;
+}
+
+/*
+** The argument is an Fts3Expr structure for a binary operator (any type
+** except an FTSQUERY_PHRASE). Return an integer value representing the
+** precedence of the operator. Lower values have a higher precedence (i.e.
+** group more tightly). For example, in the C language, the == operator
+** groups more tightly than ||, and would therefore have a higher precedence.
+**
+** When using the new fts3 query syntax (when SQLITE_ENABLE_FTS3_PARENTHESIS
+** is defined), the order of the operators in precedence from highest to
+** lowest is:
+**
+**   NEAR
+**   NOT
+**   AND (including implicit ANDs)
+**   OR
+**
+** Note that when using the old query syntax, the OR operator has a higher
+** precedence than the AND operator.
+*/
+static int opPrecedence(Fts3Expr *p){
+  assert( p->eType!=FTSQUERY_PHRASE );
+  if( sqlite3_fts3_enable_parentheses ){
+    return p->eType;
+  }else if( p->eType==FTSQUERY_NEAR ){
+    return 1;
+  }else if( p->eType==FTSQUERY_OR ){
+    return 2;
+  }
+  assert( p->eType==FTSQUERY_AND );
+  return 3;
+}
+
+/*
+** Argument ppHead contains a pointer to the current head of a query 
+** expression tree being parsed. pPrev is the expression node most recently
+** inserted into the tree. This function adds pNew, which is always a binary
+** operator node, into the expression tree based on the relative precedence
+** of pNew and the existing nodes of the tree. This may result in the head
+** of the tree changing, in which case *ppHead is set to the new root node.
+*/
+static void insertBinaryOperator(
+  Fts3Expr **ppHead,       /* Pointer to the root node of a tree */
+  Fts3Expr *pPrev,         /* Node most recently inserted into the tree */
+  Fts3Expr *pNew           /* New binary node to insert into expression tree */
+){
+  Fts3Expr *pSplit = pPrev;
+  while( pSplit->pParent && opPrecedence(pSplit->pParent)<=opPrecedence(pNew) ){
+    pSplit = pSplit->pParent;
+  }
+
+  if( pSplit->pParent ){
+    assert( pSplit->pParent->pRight==pSplit );
+    pSplit->pParent->pRight = pNew;
+    pNew->pParent = pSplit->pParent;
+  }else{
+    *ppHead = pNew;
+  }
+  pNew->pLeft = pSplit;
+  pSplit->pParent = pNew;
+}
+
+/*
+** Parse the fts3 query expression found in buffer z, length n. This function
+** returns either when the end of the buffer is reached or an unmatched 
+** closing bracket - ')' - is encountered.
+**
+** If successful, SQLITE_OK is returned, *ppExpr is set to point to the
+** parsed form of the expression and *pnConsumed is set to the number of
+** bytes read from buffer z. Otherwise, *ppExpr is set to 0 and SQLITE_NOMEM
+** (out of memory error) or SQLITE_ERROR (parse error) is returned.
+*/
+static int fts3ExprParse(
+  ParseContext *pParse,                   /* fts3 query parse context */
+  const char *z, int n,                   /* Text of MATCH query */
+  Fts3Expr **ppExpr,                      /* OUT: Parsed query structure */
+  int *pnConsumed                         /* OUT: Number of bytes consumed */
+){
+  Fts3Expr *pRet = 0;
+  Fts3Expr *pPrev = 0;
+  Fts3Expr *pNotBranch = 0;               /* Only used in legacy parse mode */
+  int nIn = n;
+  const char *zIn = z;
+  int rc = SQLITE_OK;
+  int isRequirePhrase = 1;
+
+  while( rc==SQLITE_OK ){
+    Fts3Expr *p = 0;
+    int nByte = 0;
+
+    rc = getNextNode(pParse, zIn, nIn, &p, &nByte);
+    assert( nByte>0 || (rc!=SQLITE_OK && p==0) );
+    if( rc==SQLITE_OK ){
+      if( p ){
+        int isPhrase;
+
+        if( !sqlite3_fts3_enable_parentheses 
+            && p->eType==FTSQUERY_PHRASE && pParse->isNot 
+        ){
+          /* Create an implicit NOT operator. */
+          Fts3Expr *pNot = sqlite3Fts3MallocZero(sizeof(Fts3Expr));
+          if( !pNot ){
+            sqlite3Fts3ExprFree(p);
+            rc = SQLITE_NOMEM;
+            goto exprparse_out;
+          }
+          pNot->eType = FTSQUERY_NOT;
+          pNot->pRight = p;
+          p->pParent = pNot;
+          if( pNotBranch ){
+            pNot->pLeft = pNotBranch;
+            pNotBranch->pParent = pNot;
+          }
+          pNotBranch = pNot;
+          p = pPrev;
+        }else{
+          int eType = p->eType;
+          isPhrase = (eType==FTSQUERY_PHRASE || p->pLeft);
+
+          /* The isRequirePhrase variable is set to true if a phrase or
+          ** an expression contained in parenthesis is required. If a
+          ** binary operator (AND, OR, NOT or NEAR) is encounted when
+          ** isRequirePhrase is set, this is a syntax error.
+          */
+          if( !isPhrase && isRequirePhrase ){
+            sqlite3Fts3ExprFree(p);
+            rc = SQLITE_ERROR;
+            goto exprparse_out;
+          }
+
+          if( isPhrase && !isRequirePhrase ){
+            /* Insert an implicit AND operator. */
+            Fts3Expr *pAnd;
+            assert( pRet && pPrev );
+            pAnd = sqlite3Fts3MallocZero(sizeof(Fts3Expr));
+            if( !pAnd ){
+              sqlite3Fts3ExprFree(p);
+              rc = SQLITE_NOMEM;
+              goto exprparse_out;
+            }
+            pAnd->eType = FTSQUERY_AND;
+            insertBinaryOperator(&pRet, pPrev, pAnd);
+            pPrev = pAnd;
+          }
+
+          /* This test catches attempts to make either operand of a NEAR
+           ** operator something other than a phrase. For example, either of
+           ** the following:
+           **
+           **    (bracketed expression) NEAR phrase
+           **    phrase NEAR (bracketed expression)
+           **
+           ** Return an error in either case.
+           */
+          if( pPrev && (
+            (eType==FTSQUERY_NEAR && !isPhrase && pPrev->eType!=FTSQUERY_PHRASE)
+         || (eType!=FTSQUERY_PHRASE && isPhrase && pPrev->eType==FTSQUERY_NEAR)
+          )){
+            sqlite3Fts3ExprFree(p);
+            rc = SQLITE_ERROR;
+            goto exprparse_out;
+          }
+
+          if( isPhrase ){
+            if( pRet ){
+              assert( pPrev && pPrev->pLeft && pPrev->pRight==0 );
+              pPrev->pRight = p;
+              p->pParent = pPrev;
+            }else{
+              pRet = p;
+            }
+          }else{
+            insertBinaryOperator(&pRet, pPrev, p);
+          }
+          isRequirePhrase = !isPhrase;
+        }
+        pPrev = p;
+      }
+      assert( nByte>0 );
+    }
+    assert( rc!=SQLITE_OK || (nByte>0 && nByte<=nIn) );
+    nIn -= nByte;
+    zIn += nByte;
+  }
+
+  if( rc==SQLITE_DONE && pRet && isRequirePhrase ){
+    rc = SQLITE_ERROR;
+  }
+
+  if( rc==SQLITE_DONE ){
+    rc = SQLITE_OK;
+    if( !sqlite3_fts3_enable_parentheses && pNotBranch ){
+      if( !pRet ){
+        rc = SQLITE_ERROR;
+      }else{
+        Fts3Expr *pIter = pNotBranch;
+        while( pIter->pLeft ){
+          pIter = pIter->pLeft;
+        }
+        pIter->pLeft = pRet;
+        pRet->pParent = pIter;
+        pRet = pNotBranch;
+      }
+    }
+  }
+  *pnConsumed = n - nIn;
+
+exprparse_out:
+  if( rc!=SQLITE_OK ){
+    sqlite3Fts3ExprFree(pRet);
+    sqlite3Fts3ExprFree(pNotBranch);
+    pRet = 0;
+  }
+  *ppExpr = pRet;
+  return rc;
+}
+
+/*
+** Return SQLITE_ERROR if the maximum depth of the expression tree passed 
+** as the only argument is more than nMaxDepth.
+*/
+static int fts3ExprCheckDepth(Fts3Expr *p, int nMaxDepth){
+  int rc = SQLITE_OK;
+  if( p ){
+    if( nMaxDepth<0 ){ 
+      rc = SQLITE_TOOBIG;
+    }else{
+      rc = fts3ExprCheckDepth(p->pLeft, nMaxDepth-1);
+      if( rc==SQLITE_OK ){
+        rc = fts3ExprCheckDepth(p->pRight, nMaxDepth-1);
+      }
+    }
+  }
+  return rc;
+}
+
+/*
+** This function attempts to transform the expression tree at (*pp) to
+** an equivalent but more balanced form. The tree is modified in place.
+** If successful, SQLITE_OK is returned and (*pp) set to point to the 
+** new root expression node. 
+**
+** nMaxDepth is the maximum allowable depth of the balanced sub-tree.
+**
+** Otherwise, if an error occurs, an SQLite error code is returned and 
+** expression (*pp) freed.
+*/
+static int fts3ExprBalance(Fts3Expr **pp, int nMaxDepth){
+  int rc = SQLITE_OK;             /* Return code */
+  Fts3Expr *pRoot = *pp;          /* Initial root node */
+  Fts3Expr *pFree = 0;            /* List of free nodes. Linked by pParent. */
+  int eType = pRoot->eType;       /* Type of node in this tree */
+
+  if( nMaxDepth==0 ){
+    rc = SQLITE_ERROR;
+  }
+
+  if( rc==SQLITE_OK ){
+    if( (eType==FTSQUERY_AND || eType==FTSQUERY_OR) ){
+      Fts3Expr **apLeaf;
+      apLeaf = (Fts3Expr **)sqlite3_malloc64(sizeof(Fts3Expr *) * nMaxDepth);
+      if( 0==apLeaf ){
+        rc = SQLITE_NOMEM;
+      }else{
+        memset(apLeaf, 0, sizeof(Fts3Expr *) * nMaxDepth);
+      }
+
+      if( rc==SQLITE_OK ){
+        int i;
+        Fts3Expr *p;
+
+        /* Set $p to point to the left-most leaf in the tree of eType nodes. */
+        for(p=pRoot; p->eType==eType; p=p->pLeft){
+          assert( p->pParent==0 || p->pParent->pLeft==p );
+          assert( p->pLeft && p->pRight );
+        }
+
+        /* This loop runs once for each leaf in the tree of eType nodes. */
+        while( 1 ){
+          int iLvl;
+          Fts3Expr *pParent = p->pParent;     /* Current parent of p */
+
+          assert( pParent==0 || pParent->pLeft==p );
+          p->pParent = 0;
+          if( pParent ){
+            pParent->pLeft = 0;
+          }else{
+            pRoot = 0;
+          }
+          rc = fts3ExprBalance(&p, nMaxDepth-1);
+          if( rc!=SQLITE_OK ) break;
+
+          for(iLvl=0; p && iLvl<nMaxDepth; iLvl++){
+            if( apLeaf[iLvl]==0 ){
+              apLeaf[iLvl] = p;
+              p = 0;
+            }else{
+              assert( pFree );
+              pFree->pLeft = apLeaf[iLvl];
+              pFree->pRight = p;
+              pFree->pLeft->pParent = pFree;
+              pFree->pRight->pParent = pFree;
+
+              p = pFree;
+              pFree = pFree->pParent;
+              p->pParent = 0;
+              apLeaf[iLvl] = 0;
+            }
+          }
+          if( p ){
+            sqlite3Fts3ExprFree(p);
+            rc = SQLITE_TOOBIG;
+            break;
+          }
+
+          /* If that was the last leaf node, break out of the loop */
+          if( pParent==0 ) break;
+
+          /* Set $p to point to the next leaf in the tree of eType nodes */
+          for(p=pParent->pRight; p->eType==eType; p=p->pLeft);
+
+          /* Remove pParent from the original tree. */
+          assert( pParent->pParent==0 || pParent->pParent->pLeft==pParent );
+          pParent->pRight->pParent = pParent->pParent;
+          if( pParent->pParent ){
+            pParent->pParent->pLeft = pParent->pRight;
+          }else{
+            assert( pParent==pRoot );
+            pRoot = pParent->pRight;
+          }
+
+          /* Link pParent into the free node list. It will be used as an
+          ** internal node of the new tree.  */
+          pParent->pParent = pFree;
+          pFree = pParent;
+        }
+
+        if( rc==SQLITE_OK ){
+          p = 0;
+          for(i=0; i<nMaxDepth; i++){
+            if( apLeaf[i] ){
+              if( p==0 ){
+                p = apLeaf[i];
+                p->pParent = 0;
+              }else{
+                assert( pFree!=0 );
+                pFree->pRight = p;
+                pFree->pLeft = apLeaf[i];
+                pFree->pLeft->pParent = pFree;
+                pFree->pRight->pParent = pFree;
+
+                p = pFree;
+                pFree = pFree->pParent;
+                p->pParent = 0;
+              }
+            }
+          }
+          pRoot = p;
+        }else{
+          /* An error occurred. Delete the contents of the apLeaf[] array 
+          ** and pFree list. Everything else is cleaned up by the call to
+          ** sqlite3Fts3ExprFree(pRoot) below.  */
+          Fts3Expr *pDel;
+          for(i=0; i<nMaxDepth; i++){
+            sqlite3Fts3ExprFree(apLeaf[i]);
+          }
+          while( (pDel=pFree)!=0 ){
+            pFree = pDel->pParent;
+            sqlite3_free(pDel);
+          }
+        }
+
+        assert( pFree==0 );
+        sqlite3_free( apLeaf );
+      }
+    }else if( eType==FTSQUERY_NOT ){
+      Fts3Expr *pLeft = pRoot->pLeft;
+      Fts3Expr *pRight = pRoot->pRight;
+
+      pRoot->pLeft = 0;
+      pRoot->pRight = 0;
+      pLeft->pParent = 0;
+      pRight->pParent = 0;
+
+      rc = fts3ExprBalance(&pLeft, nMaxDepth-1);
+      if( rc==SQLITE_OK ){
+        rc = fts3ExprBalance(&pRight, nMaxDepth-1);
+      }
+
+      if( rc!=SQLITE_OK ){
+        sqlite3Fts3ExprFree(pRight);
+        sqlite3Fts3ExprFree(pLeft);
+      }else{
+        assert( pLeft && pRight );
+        pRoot->pLeft = pLeft;
+        pLeft->pParent = pRoot;
+        pRoot->pRight = pRight;
+        pRight->pParent = pRoot;
+      }
+    }
+  }
+  
+  if( rc!=SQLITE_OK ){
+    sqlite3Fts3ExprFree(pRoot);
+    pRoot = 0;
+  }
+  *pp = pRoot;
+  return rc;
+}
+
+/*
+** This function is similar to sqlite3Fts3ExprParse(), with the following
+** differences:
+**
+**   1. It does not do expression rebalancing.
+**   2. It does not check that the expression does not exceed the 
+**      maximum allowable depth.
+**   3. Even if it fails, *ppExpr may still be set to point to an 
+**      expression tree. It should be deleted using sqlite3Fts3ExprFree()
+**      in this case.
+*/
+static int fts3ExprParseUnbalanced(
+  sqlite3_tokenizer *pTokenizer,      /* Tokenizer module */
+  int iLangid,                        /* Language id for tokenizer */
+  char **azCol,                       /* Array of column names for fts3 table */
+  int bFts4,                          /* True to allow FTS4-only syntax */
+  int nCol,                           /* Number of entries in azCol[] */
+  int iDefaultCol,                    /* Default column to query */
+  const char *z, int n,               /* Text of MATCH query */
+  Fts3Expr **ppExpr                   /* OUT: Parsed query structure */
+){
+  int nParsed;
+  int rc;
+  ParseContext sParse;
+
+  memset(&sParse, 0, sizeof(ParseContext));
+  sParse.pTokenizer = pTokenizer;
+  sParse.iLangid = iLangid;
+  sParse.azCol = (const char **)azCol;
+  sParse.nCol = nCol;
+  sParse.iDefaultCol = iDefaultCol;
+  sParse.bFts4 = bFts4;
+  if( z==0 ){
+    *ppExpr = 0;
+    return SQLITE_OK;
+  }
+  if( n<0 ){
+    n = (int)strlen(z);
+  }
+  rc = fts3ExprParse(&sParse, z, n, ppExpr, &nParsed);
+  assert( rc==SQLITE_OK || *ppExpr==0 );
+
+  /* Check for mismatched parenthesis */
+  if( rc==SQLITE_OK && sParse.nNest ){
+    rc = SQLITE_ERROR;
+  }
+  
+  return rc;
+}
+
+/*
+** Parameters z and n contain a pointer to and length of a buffer containing
+** an fts3 query expression, respectively. This function attempts to parse the
+** query expression and create a tree of Fts3Expr structures representing the
+** parsed expression. If successful, *ppExpr is set to point to the head
+** of the parsed expression tree and SQLITE_OK is returned. If an error
+** occurs, either SQLITE_NOMEM (out-of-memory error) or SQLITE_ERROR (parse
+** error) is returned and *ppExpr is set to 0.
+**
+** If parameter n is a negative number, then z is assumed to point to a
+** nul-terminated string and the length is determined using strlen().
+**
+** The first parameter, pTokenizer, is passed the fts3 tokenizer module to
+** use to normalize query tokens while parsing the expression. The azCol[]
+** array, which is assumed to contain nCol entries, should contain the names
+** of each column in the target fts3 table, in order from left to right. 
+** Column names must be nul-terminated strings.
+**
+** The iDefaultCol parameter should be passed the index of the table column
+** that appears on the left-hand-side of the MATCH operator (the default
+** column to match against for tokens for which a column name is not explicitly
+** specified as part of the query string), or -1 if tokens may by default
+** match any table column.
+*/
+int sqlite3Fts3ExprParse(
+  sqlite3_tokenizer *pTokenizer,      /* Tokenizer module */
+  int iLangid,                        /* Language id for tokenizer */
+  char **azCol,                       /* Array of column names for fts3 table */
+  int bFts4,                          /* True to allow FTS4-only syntax */
+  int nCol,                           /* Number of entries in azCol[] */
+  int iDefaultCol,                    /* Default column to query */
+  const char *z, int n,               /* Text of MATCH query */
+  Fts3Expr **ppExpr,                  /* OUT: Parsed query structure */
+  char **pzErr                        /* OUT: Error message (sqlite3_malloc) */
+){
+  int rc = fts3ExprParseUnbalanced(
+      pTokenizer, iLangid, azCol, bFts4, nCol, iDefaultCol, z, n, ppExpr
+  );
+  
+  /* Rebalance the expression. And check that its depth does not exceed
+  ** SQLITE_FTS3_MAX_EXPR_DEPTH.  */
+  if( rc==SQLITE_OK && *ppExpr ){
+    rc = fts3ExprBalance(ppExpr, SQLITE_FTS3_MAX_EXPR_DEPTH);
+    if( rc==SQLITE_OK ){
+      rc = fts3ExprCheckDepth(*ppExpr, SQLITE_FTS3_MAX_EXPR_DEPTH);
+    }
+  }
+
+  if( rc!=SQLITE_OK ){
+    sqlite3Fts3ExprFree(*ppExpr);
+    *ppExpr = 0;
+    if( rc==SQLITE_TOOBIG ){
+      sqlite3Fts3ErrMsg(pzErr,
+          "FTS expression tree is too large (maximum depth %d)", 
+          SQLITE_FTS3_MAX_EXPR_DEPTH
+      );
+      rc = SQLITE_ERROR;
+    }else if( rc==SQLITE_ERROR ){
+      sqlite3Fts3ErrMsg(pzErr, "malformed MATCH expression: [%s]", z);
+    }
+  }
+
+  return rc;
+}
+
+/*
+** Free a single node of an expression tree.
+*/
+static void fts3FreeExprNode(Fts3Expr *p){
+  assert( p->eType==FTSQUERY_PHRASE || p->pPhrase==0 );
+  sqlite3Fts3EvalPhraseCleanup(p->pPhrase);
+  sqlite3_free(p->aMI);
+  sqlite3_free(p);
+}
+
+/*
+** Free a parsed fts3 query expression allocated by sqlite3Fts3ExprParse().
+**
+** This function would be simpler if it recursively called itself. But
+** that would mean passing a sufficiently large expression to ExprParse()
+** could cause a stack overflow.
+*/
+void sqlite3Fts3ExprFree(Fts3Expr *pDel){
+  Fts3Expr *p;
+  assert( pDel==0 || pDel->pParent==0 );
+  for(p=pDel; p && (p->pLeft||p->pRight); p=(p->pLeft ? p->pLeft : p->pRight)){
+    assert( p->pParent==0 || p==p->pParent->pRight || p==p->pParent->pLeft );
+  }
+  while( p ){
+    Fts3Expr *pParent = p->pParent;
+    fts3FreeExprNode(p);
+    if( pParent && p==pParent->pLeft && pParent->pRight ){
+      p = pParent->pRight;
+      while( p && (p->pLeft || p->pRight) ){
+        assert( p==p->pParent->pRight || p==p->pParent->pLeft );
+        p = (p->pLeft ? p->pLeft : p->pRight);
+      }
+    }else{
+      p = pParent;
+    }
+  }
+}
+
+/****************************************************************************
+*****************************************************************************
+** Everything after this point is just test code.
+*/
+
+#ifdef SQLITE_TEST
+
+#include <stdio.h>
+
+/*
+** Return a pointer to a buffer containing a text representation of the
+** expression passed as the first argument. The buffer is obtained from
+** sqlite3_malloc(). It is the responsibility of the caller to use 
+** sqlite3_free() to release the memory. If an OOM condition is encountered,
+** NULL is returned.
+**
+** If the second argument is not NULL, then its contents are prepended to 
+** the returned expression text and then freed using sqlite3_free().
+*/
+static char *exprToString(Fts3Expr *pExpr, char *zBuf){
+  if( pExpr==0 ){
+    return sqlite3_mprintf("");
+  }
+  switch( pExpr->eType ){
+    case FTSQUERY_PHRASE: {
+      Fts3Phrase *pPhrase = pExpr->pPhrase;
+      int i;
+      zBuf = sqlite3_mprintf(
+          "%zPHRASE %d 0", zBuf, pPhrase->iColumn);
+      for(i=0; zBuf && i<pPhrase->nToken; i++){
+        zBuf = sqlite3_mprintf("%z %.*s%s", zBuf, 
+            pPhrase->aToken[i].n, pPhrase->aToken[i].z,
+            (pPhrase->aToken[i].isPrefix?"+":"")
+        );
+      }
+      return zBuf;
+    }
+
+    case FTSQUERY_NEAR:
+      zBuf = sqlite3_mprintf("%zNEAR/%d ", zBuf, pExpr->nNear);
+      break;
+    case FTSQUERY_NOT:
+      zBuf = sqlite3_mprintf("%zNOT ", zBuf);
+      break;
+    case FTSQUERY_AND:
+      zBuf = sqlite3_mprintf("%zAND ", zBuf);
+      break;
+    case FTSQUERY_OR:
+      zBuf = sqlite3_mprintf("%zOR ", zBuf);
+      break;
+  }
+
+  if( zBuf ) zBuf = sqlite3_mprintf("%z{", zBuf);
+  if( zBuf ) zBuf = exprToString(pExpr->pLeft, zBuf);
+  if( zBuf ) zBuf = sqlite3_mprintf("%z} {", zBuf);
+
+  if( zBuf ) zBuf = exprToString(pExpr->pRight, zBuf);
+  if( zBuf ) zBuf = sqlite3_mprintf("%z}", zBuf);
+
+  return zBuf;
+}
+
+/*
+** This is the implementation of a scalar SQL function used to test the 
+** expression parser. It should be called as follows:
+**
+**   fts3_exprtest(<tokenizer>, <expr>, <column 1>, ...);
+**
+** The first argument, <tokenizer>, is the name of the fts3 tokenizer used
+** to parse the query expression (see README.tokenizers). The second argument
+** is the query expression to parse. Each subsequent argument is the name
+** of a column of the fts3 table that the query expression may refer to.
+** For example:
+**
+**   SELECT fts3_exprtest('simple', 'Bill col2:Bloggs', 'col1', 'col2');
+*/
+static void fts3ExprTestCommon(
+  int bRebalance,
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  sqlite3_tokenizer *pTokenizer = 0;
+  int rc;
+  char **azCol = 0;
+  const char *zExpr;
+  int nExpr;
+  int nCol;
+  int ii;
+  Fts3Expr *pExpr;
+  char *zBuf = 0;
+  Fts3Hash *pHash = (Fts3Hash*)sqlite3_user_data(context);
+  const char *zTokenizer = 0;
+  char *zErr = 0;
+
+  if( argc<3 ){
+    sqlite3_result_error(context, 
+        "Usage: fts3_exprtest(tokenizer, expr, col1, ...", -1
+    );
+    return;
+  }
+
+  zTokenizer = (const char*)sqlite3_value_text(argv[0]);
+  rc = sqlite3Fts3InitTokenizer(pHash, zTokenizer, &pTokenizer, &zErr);
+  if( rc!=SQLITE_OK ){
+    if( rc==SQLITE_NOMEM ){
+      sqlite3_result_error_nomem(context);
+    }else{
+      sqlite3_result_error(context, zErr, -1);
+    }
+    sqlite3_free(zErr);
+    return;
+  }
+
+  zExpr = (const char *)sqlite3_value_text(argv[1]);
+  nExpr = sqlite3_value_bytes(argv[1]);
+  nCol = argc-2;
+  azCol = (char **)sqlite3_malloc64(nCol*sizeof(char *));
+  if( !azCol ){
+    sqlite3_result_error_nomem(context);
+    goto exprtest_out;
+  }
+  for(ii=0; ii<nCol; ii++){
+    azCol[ii] = (char *)sqlite3_value_text(argv[ii+2]);
+  }
+
+  if( bRebalance ){
+    char *zDummy = 0;
+    rc = sqlite3Fts3ExprParse(
+        pTokenizer, 0, azCol, 0, nCol, nCol, zExpr, nExpr, &pExpr, &zDummy
+    );
+    assert( rc==SQLITE_OK || pExpr==0 );
+    sqlite3_free(zDummy);
+  }else{
+    rc = fts3ExprParseUnbalanced(
+        pTokenizer, 0, azCol, 0, nCol, nCol, zExpr, nExpr, &pExpr
+    );
+  }
+
+  if( rc!=SQLITE_OK && rc!=SQLITE_NOMEM ){
+    sqlite3Fts3ExprFree(pExpr);
+    sqlite3_result_error(context, "Error parsing expression", -1);
+  }else if( rc==SQLITE_NOMEM || !(zBuf = exprToString(pExpr, 0)) ){
+    sqlite3_result_error_nomem(context);
+  }else{
+    sqlite3_result_text(context, zBuf, -1, SQLITE_TRANSIENT);
+    sqlite3_free(zBuf);
+  }
+
+  sqlite3Fts3ExprFree(pExpr);
+
+exprtest_out:
+  if( pTokenizer ){
+    rc = pTokenizer->pModule->xDestroy(pTokenizer);
+  }
+  sqlite3_free(azCol);
+}
+
+static void fts3ExprTest(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  fts3ExprTestCommon(0, context, argc, argv);
+}
+static void fts3ExprTestRebalance(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  fts3ExprTestCommon(1, context, argc, argv);
+}
+
+/*
+** Register the query expression parser test function fts3_exprtest() 
+** with database connection db. 
+*/
+int sqlite3Fts3ExprInitTestInterface(sqlite3 *db, Fts3Hash *pHash){
+  int rc = sqlite3_create_function(
+      db, "fts3_exprtest", -1, SQLITE_UTF8, (void*)pHash, fts3ExprTest, 0, 0
+  );
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_function(db, "fts3_exprtest_rebalance", 
+        -1, SQLITE_UTF8, (void*)pHash, fts3ExprTestRebalance, 0, 0
+    );
+  }
+  return rc;
+}
+
+#endif
+#endif /* !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3) */
diff --git a/ext/fts3/fts3_hash.c b/ext/fts3/fts3_hash.c
new file mode 100644
index 0000000000000000000000000000000000000000..63e55b3dc9ac3d152e104af29b95b9e179e1ce48
--- /dev/null
+++ b/ext/fts3/fts3_hash.c
@@ -0,0 +1,383 @@
+/*
+** 2001 September 22
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This is the implementation of generic hash-tables used in SQLite.
+** We've modified it slightly to serve as a standalone hash table
+** implementation for the full-text indexing module.
+*/
+
+/*
+** The code in this file is only compiled if:
+**
+**     * The FTS3 module is being built as an extension
+**       (in which case SQLITE_CORE is not defined), or
+**
+**     * The FTS3 module is being built into the core of
+**       SQLite (in which case SQLITE_ENABLE_FTS3 is defined).
+*/
+#include "fts3Int.h"
+#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3)
+
+#include <assert.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "fts3_hash.h"
+
+/*
+** Malloc and Free functions
+*/
+static void *fts3HashMalloc(sqlite3_int64 n){
+  void *p = sqlite3_malloc64(n);
+  if( p ){
+    memset(p, 0, n);
+  }
+  return p;
+}
+static void fts3HashFree(void *p){
+  sqlite3_free(p);
+}
+
+/* Turn bulk memory into a hash table object by initializing the
+** fields of the Hash structure.
+**
+** "pNew" is a pointer to the hash table that is to be initialized.
+** keyClass is one of the constants 
+** FTS3_HASH_BINARY or FTS3_HASH_STRING.  The value of keyClass 
+** determines what kind of key the hash table will use.  "copyKey" is
+** true if the hash table should make its own private copy of keys and
+** false if it should just use the supplied pointer.
+*/
+void sqlite3Fts3HashInit(Fts3Hash *pNew, char keyClass, char copyKey){
+  assert( pNew!=0 );
+  assert( keyClass>=FTS3_HASH_STRING && keyClass<=FTS3_HASH_BINARY );
+  pNew->keyClass = keyClass;
+  pNew->copyKey = copyKey;
+  pNew->first = 0;
+  pNew->count = 0;
+  pNew->htsize = 0;
+  pNew->ht = 0;
+}
+
+/* Remove all entries from a hash table.  Reclaim all memory.
+** Call this routine to delete a hash table or to reset a hash table
+** to the empty state.
+*/
+void sqlite3Fts3HashClear(Fts3Hash *pH){
+  Fts3HashElem *elem;         /* For looping over all elements of the table */
+
+  assert( pH!=0 );
+  elem = pH->first;
+  pH->first = 0;
+  fts3HashFree(pH->ht);
+  pH->ht = 0;
+  pH->htsize = 0;
+  while( elem ){
+    Fts3HashElem *next_elem = elem->next;
+    if( pH->copyKey && elem->pKey ){
+      fts3HashFree(elem->pKey);
+    }
+    fts3HashFree(elem);
+    elem = next_elem;
+  }
+  pH->count = 0;
+}
+
+/*
+** Hash and comparison functions when the mode is FTS3_HASH_STRING
+*/
+static int fts3StrHash(const void *pKey, int nKey){
+  const char *z = (const char *)pKey;
+  unsigned h = 0;
+  if( nKey<=0 ) nKey = (int) strlen(z);
+  while( nKey > 0  ){
+    h = (h<<3) ^ h ^ *z++;
+    nKey--;
+  }
+  return (int)(h & 0x7fffffff);
+}
+static int fts3StrCompare(const void *pKey1, int n1, const void *pKey2, int n2){
+  if( n1!=n2 ) return 1;
+  return strncmp((const char*)pKey1,(const char*)pKey2,n1);
+}
+
+/*
+** Hash and comparison functions when the mode is FTS3_HASH_BINARY
+*/
+static int fts3BinHash(const void *pKey, int nKey){
+  int h = 0;
+  const char *z = (const char *)pKey;
+  while( nKey-- > 0 ){
+    h = (h<<3) ^ h ^ *(z++);
+  }
+  return h & 0x7fffffff;
+}
+static int fts3BinCompare(const void *pKey1, int n1, const void *pKey2, int n2){
+  if( n1!=n2 ) return 1;
+  return memcmp(pKey1,pKey2,n1);
+}
+
+/*
+** Return a pointer to the appropriate hash function given the key class.
+**
+** The C syntax in this function definition may be unfamilar to some 
+** programmers, so we provide the following additional explanation:
+**
+** The name of the function is "ftsHashFunction".  The function takes a
+** single parameter "keyClass".  The return value of ftsHashFunction()
+** is a pointer to another function.  Specifically, the return value
+** of ftsHashFunction() is a pointer to a function that takes two parameters
+** with types "const void*" and "int" and returns an "int".
+*/
+static int (*ftsHashFunction(int keyClass))(const void*,int){
+  if( keyClass==FTS3_HASH_STRING ){
+    return &fts3StrHash;
+  }else{
+    assert( keyClass==FTS3_HASH_BINARY );
+    return &fts3BinHash;
+  }
+}
+
+/*
+** Return a pointer to the appropriate hash function given the key class.
+**
+** For help in interpreted the obscure C code in the function definition,
+** see the header comment on the previous function.
+*/
+static int (*ftsCompareFunction(int keyClass))(const void*,int,const void*,int){
+  if( keyClass==FTS3_HASH_STRING ){
+    return &fts3StrCompare;
+  }else{
+    assert( keyClass==FTS3_HASH_BINARY );
+    return &fts3BinCompare;
+  }
+}
+
+/* Link an element into the hash table
+*/
+static void fts3HashInsertElement(
+  Fts3Hash *pH,            /* The complete hash table */
+  struct _fts3ht *pEntry,  /* The entry into which pNew is inserted */
+  Fts3HashElem *pNew       /* The element to be inserted */
+){
+  Fts3HashElem *pHead;     /* First element already in pEntry */
+  pHead = pEntry->chain;
+  if( pHead ){
+    pNew->next = pHead;
+    pNew->prev = pHead->prev;
+    if( pHead->prev ){ pHead->prev->next = pNew; }
+    else             { pH->first = pNew; }
+    pHead->prev = pNew;
+  }else{
+    pNew->next = pH->first;
+    if( pH->first ){ pH->first->prev = pNew; }
+    pNew->prev = 0;
+    pH->first = pNew;
+  }
+  pEntry->count++;
+  pEntry->chain = pNew;
+}
+
+
+/* Resize the hash table so that it cantains "new_size" buckets.
+** "new_size" must be a power of 2.  The hash table might fail 
+** to resize if sqliteMalloc() fails.
+**
+** Return non-zero if a memory allocation error occurs.
+*/
+static int fts3Rehash(Fts3Hash *pH, int new_size){
+  struct _fts3ht *new_ht;          /* The new hash table */
+  Fts3HashElem *elem, *next_elem;  /* For looping over existing elements */
+  int (*xHash)(const void*,int);   /* The hash function */
+
+  assert( (new_size & (new_size-1))==0 );
+  new_ht = (struct _fts3ht *)fts3HashMalloc( new_size*sizeof(struct _fts3ht) );
+  if( new_ht==0 ) return 1;
+  fts3HashFree(pH->ht);
+  pH->ht = new_ht;
+  pH->htsize = new_size;
+  xHash = ftsHashFunction(pH->keyClass);
+  for(elem=pH->first, pH->first=0; elem; elem = next_elem){
+    int h = (*xHash)(elem->pKey, elem->nKey) & (new_size-1);
+    next_elem = elem->next;
+    fts3HashInsertElement(pH, &new_ht[h], elem);
+  }
+  return 0;
+}
+
+/* This function (for internal use only) locates an element in an
+** hash table that matches the given key.  The hash for this key has
+** already been computed and is passed as the 4th parameter.
+*/
+static Fts3HashElem *fts3FindElementByHash(
+  const Fts3Hash *pH, /* The pH to be searched */
+  const void *pKey,   /* The key we are searching for */
+  int nKey,
+  int h               /* The hash for this key. */
+){
+  Fts3HashElem *elem;            /* Used to loop thru the element list */
+  int count;                     /* Number of elements left to test */
+  int (*xCompare)(const void*,int,const void*,int);  /* comparison function */
+
+  if( pH->ht ){
+    struct _fts3ht *pEntry = &pH->ht[h];
+    elem = pEntry->chain;
+    count = pEntry->count;
+    xCompare = ftsCompareFunction(pH->keyClass);
+    while( count-- && elem ){
+      if( (*xCompare)(elem->pKey,elem->nKey,pKey,nKey)==0 ){ 
+        return elem;
+      }
+      elem = elem->next;
+    }
+  }
+  return 0;
+}
+
+/* Remove a single entry from the hash table given a pointer to that
+** element and a hash on the element's key.
+*/
+static void fts3RemoveElementByHash(
+  Fts3Hash *pH,         /* The pH containing "elem" */
+  Fts3HashElem* elem,   /* The element to be removed from the pH */
+  int h                 /* Hash value for the element */
+){
+  struct _fts3ht *pEntry;
+  if( elem->prev ){
+    elem->prev->next = elem->next; 
+  }else{
+    pH->first = elem->next;
+  }
+  if( elem->next ){
+    elem->next->prev = elem->prev;
+  }
+  pEntry = &pH->ht[h];
+  if( pEntry->chain==elem ){
+    pEntry->chain = elem->next;
+  }
+  pEntry->count--;
+  if( pEntry->count<=0 ){
+    pEntry->chain = 0;
+  }
+  if( pH->copyKey && elem->pKey ){
+    fts3HashFree(elem->pKey);
+  }
+  fts3HashFree( elem );
+  pH->count--;
+  if( pH->count<=0 ){
+    assert( pH->first==0 );
+    assert( pH->count==0 );
+    fts3HashClear(pH);
+  }
+}
+
+Fts3HashElem *sqlite3Fts3HashFindElem(
+  const Fts3Hash *pH, 
+  const void *pKey, 
+  int nKey
+){
+  int h;                          /* A hash on key */
+  int (*xHash)(const void*,int);  /* The hash function */
+
+  if( pH==0 || pH->ht==0 ) return 0;
+  xHash = ftsHashFunction(pH->keyClass);
+  assert( xHash!=0 );
+  h = (*xHash)(pKey,nKey);
+  assert( (pH->htsize & (pH->htsize-1))==0 );
+  return fts3FindElementByHash(pH,pKey,nKey, h & (pH->htsize-1));
+}
+
+/* 
+** Attempt to locate an element of the hash table pH with a key
+** that matches pKey,nKey.  Return the data for this element if it is
+** found, or NULL if there is no match.
+*/
+void *sqlite3Fts3HashFind(const Fts3Hash *pH, const void *pKey, int nKey){
+  Fts3HashElem *pElem;            /* The element that matches key (if any) */
+
+  pElem = sqlite3Fts3HashFindElem(pH, pKey, nKey);
+  return pElem ? pElem->data : 0;
+}
+
+/* Insert an element into the hash table pH.  The key is pKey,nKey
+** and the data is "data".
+**
+** If no element exists with a matching key, then a new
+** element is created.  A copy of the key is made if the copyKey
+** flag is set.  NULL is returned.
+**
+** If another element already exists with the same key, then the
+** new data replaces the old data and the old data is returned.
+** The key is not copied in this instance.  If a malloc fails, then
+** the new data is returned and the hash table is unchanged.
+**
+** If the "data" parameter to this function is NULL, then the
+** element corresponding to "key" is removed from the hash table.
+*/
+void *sqlite3Fts3HashInsert(
+  Fts3Hash *pH,        /* The hash table to insert into */
+  const void *pKey,    /* The key */
+  int nKey,            /* Number of bytes in the key */
+  void *data           /* The data */
+){
+  int hraw;                 /* Raw hash value of the key */
+  int h;                    /* the hash of the key modulo hash table size */
+  Fts3HashElem *elem;       /* Used to loop thru the element list */
+  Fts3HashElem *new_elem;   /* New element added to the pH */
+  int (*xHash)(const void*,int);  /* The hash function */
+
+  assert( pH!=0 );
+  xHash = ftsHashFunction(pH->keyClass);
+  assert( xHash!=0 );
+  hraw = (*xHash)(pKey, nKey);
+  assert( (pH->htsize & (pH->htsize-1))==0 );
+  h = hraw & (pH->htsize-1);
+  elem = fts3FindElementByHash(pH,pKey,nKey,h);
+  if( elem ){
+    void *old_data = elem->data;
+    if( data==0 ){
+      fts3RemoveElementByHash(pH,elem,h);
+    }else{
+      elem->data = data;
+    }
+    return old_data;
+  }
+  if( data==0 ) return 0;
+  if( (pH->htsize==0 && fts3Rehash(pH,8))
+   || (pH->count>=pH->htsize && fts3Rehash(pH, pH->htsize*2))
+  ){
+    pH->count = 0;
+    return data;
+  }
+  assert( pH->htsize>0 );
+  new_elem = (Fts3HashElem*)fts3HashMalloc( sizeof(Fts3HashElem) );
+  if( new_elem==0 ) return data;
+  if( pH->copyKey && pKey!=0 ){
+    new_elem->pKey = fts3HashMalloc( nKey );
+    if( new_elem->pKey==0 ){
+      fts3HashFree(new_elem);
+      return data;
+    }
+    memcpy((void*)new_elem->pKey, pKey, nKey);
+  }else{
+    new_elem->pKey = (void*)pKey;
+  }
+  new_elem->nKey = nKey;
+  pH->count++;
+  assert( pH->htsize>0 );
+  assert( (pH->htsize & (pH->htsize-1))==0 );
+  h = hraw & (pH->htsize-1);
+  fts3HashInsertElement(pH, &pH->ht[h], new_elem);
+  new_elem->data = data;
+  return 0;
+}
+
+#endif /* !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3) */
diff --git a/ext/fts3/fts3_hash.h b/ext/fts3/fts3_hash.h
new file mode 100644
index 0000000000000000000000000000000000000000..dc3fcf8334fb26962bc887fb1fc30e21c543185c
--- /dev/null
+++ b/ext/fts3/fts3_hash.h
@@ -0,0 +1,112 @@
+/*
+** 2001 September 22
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This is the header file for the generic hash-table implementation
+** used in SQLite.  We've modified it slightly to serve as a standalone
+** hash table implementation for the full-text indexing module.
+**
+*/
+#ifndef _FTS3_HASH_H_
+#define _FTS3_HASH_H_
+
+/* Forward declarations of structures. */
+typedef struct Fts3Hash Fts3Hash;
+typedef struct Fts3HashElem Fts3HashElem;
+
+/* A complete hash table is an instance of the following structure.
+** The internals of this structure are intended to be opaque -- client
+** code should not attempt to access or modify the fields of this structure
+** directly.  Change this structure only by using the routines below.
+** However, many of the "procedures" and "functions" for modifying and
+** accessing this structure are really macros, so we can't really make
+** this structure opaque.
+*/
+struct Fts3Hash {
+  char keyClass;          /* HASH_INT, _POINTER, _STRING, _BINARY */
+  char copyKey;           /* True if copy of key made on insert */
+  int count;              /* Number of entries in this table */
+  Fts3HashElem *first;    /* The first element of the array */
+  int htsize;             /* Number of buckets in the hash table */
+  struct _fts3ht {        /* the hash table */
+    int count;               /* Number of entries with this hash */
+    Fts3HashElem *chain;     /* Pointer to first entry with this hash */
+  } *ht;
+};
+
+/* Each element in the hash table is an instance of the following 
+** structure.  All elements are stored on a single doubly-linked list.
+**
+** Again, this structure is intended to be opaque, but it can't really
+** be opaque because it is used by macros.
+*/
+struct Fts3HashElem {
+  Fts3HashElem *next, *prev; /* Next and previous elements in the table */
+  void *data;                /* Data associated with this element */
+  void *pKey; int nKey;      /* Key associated with this element */
+};
+
+/*
+** There are 2 different modes of operation for a hash table:
+**
+**   FTS3_HASH_STRING        pKey points to a string that is nKey bytes long
+**                           (including the null-terminator, if any).  Case
+**                           is respected in comparisons.
+**
+**   FTS3_HASH_BINARY        pKey points to binary data nKey bytes long. 
+**                           memcmp() is used to compare keys.
+**
+** A copy of the key is made if the copyKey parameter to fts3HashInit is 1.  
+*/
+#define FTS3_HASH_STRING    1
+#define FTS3_HASH_BINARY    2
+
+/*
+** Access routines.  To delete, insert a NULL pointer.
+*/
+void sqlite3Fts3HashInit(Fts3Hash *pNew, char keyClass, char copyKey);
+void *sqlite3Fts3HashInsert(Fts3Hash*, const void *pKey, int nKey, void *pData);
+void *sqlite3Fts3HashFind(const Fts3Hash*, const void *pKey, int nKey);
+void sqlite3Fts3HashClear(Fts3Hash*);
+Fts3HashElem *sqlite3Fts3HashFindElem(const Fts3Hash *, const void *, int);
+
+/*
+** Shorthand for the functions above
+*/
+#define fts3HashInit     sqlite3Fts3HashInit
+#define fts3HashInsert   sqlite3Fts3HashInsert
+#define fts3HashFind     sqlite3Fts3HashFind
+#define fts3HashClear    sqlite3Fts3HashClear
+#define fts3HashFindElem sqlite3Fts3HashFindElem
+
+/*
+** Macros for looping over all elements of a hash table.  The idiom is
+** like this:
+**
+**   Fts3Hash h;
+**   Fts3HashElem *p;
+**   ...
+**   for(p=fts3HashFirst(&h); p; p=fts3HashNext(p)){
+**     SomeStructure *pData = fts3HashData(p);
+**     // do something with pData
+**   }
+*/
+#define fts3HashFirst(H)  ((H)->first)
+#define fts3HashNext(E)   ((E)->next)
+#define fts3HashData(E)   ((E)->data)
+#define fts3HashKey(E)    ((E)->pKey)
+#define fts3HashKeysize(E) ((E)->nKey)
+
+/*
+** Number of entries in a hash table
+*/
+#define fts3HashCount(H)  ((H)->count)
+
+#endif /* _FTS3_HASH_H_ */
diff --git a/ext/fts3/fts3_icu.c b/ext/fts3/fts3_icu.c
new file mode 100644
index 0000000000000000000000000000000000000000..0848a5aabaeb642279d24d8d8dbeb5a38fda131f
--- /dev/null
+++ b/ext/fts3/fts3_icu.c
@@ -0,0 +1,262 @@
+/*
+** 2007 June 22
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file implements a tokenizer for fts3 based on the ICU library.
+*/
+#include "fts3Int.h"
+#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3)
+#ifdef SQLITE_ENABLE_ICU
+
+#include <assert.h>
+#include <string.h>
+#include "fts3_tokenizer.h"
+
+#include <unicode/ubrk.h>
+#include <unicode/ucol.h>
+#include <unicode/ustring.h>
+#include <unicode/utf16.h>
+
+typedef struct IcuTokenizer IcuTokenizer;
+typedef struct IcuCursor IcuCursor;
+
+struct IcuTokenizer {
+  sqlite3_tokenizer base;
+  char *zLocale;
+};
+
+struct IcuCursor {
+  sqlite3_tokenizer_cursor base;
+
+  UBreakIterator *pIter;      /* ICU break-iterator object */
+  int nChar;                  /* Number of UChar elements in pInput */
+  UChar *aChar;               /* Copy of input using utf-16 encoding */
+  int *aOffset;               /* Offsets of each character in utf-8 input */
+
+  int nBuffer;
+  char *zBuffer;
+
+  int iToken;
+};
+
+/*
+** Create a new tokenizer instance.
+*/
+static int icuCreate(
+  int argc,                            /* Number of entries in argv[] */
+  const char * const *argv,            /* Tokenizer creation arguments */
+  sqlite3_tokenizer **ppTokenizer      /* OUT: Created tokenizer */
+){
+  IcuTokenizer *p;
+  int n = 0;
+
+  if( argc>0 ){
+    n = strlen(argv[0])+1;
+  }
+  p = (IcuTokenizer *)sqlite3_malloc64(sizeof(IcuTokenizer)+n);
+  if( !p ){
+    return SQLITE_NOMEM;
+  }
+  memset(p, 0, sizeof(IcuTokenizer));
+
+  if( n ){
+    p->zLocale = (char *)&p[1];
+    memcpy(p->zLocale, argv[0], n);
+  }
+
+  *ppTokenizer = (sqlite3_tokenizer *)p;
+
+  return SQLITE_OK;
+}
+
+/*
+** Destroy a tokenizer
+*/
+static int icuDestroy(sqlite3_tokenizer *pTokenizer){
+  IcuTokenizer *p = (IcuTokenizer *)pTokenizer;
+  sqlite3_free(p);
+  return SQLITE_OK;
+}
+
+/*
+** Prepare to begin tokenizing a particular string.  The input
+** string to be tokenized is pInput[0..nBytes-1].  A cursor
+** used to incrementally tokenize this string is returned in 
+** *ppCursor.
+*/
+static int icuOpen(
+  sqlite3_tokenizer *pTokenizer,         /* The tokenizer */
+  const char *zInput,                    /* Input string */
+  int nInput,                            /* Length of zInput in bytes */
+  sqlite3_tokenizer_cursor **ppCursor    /* OUT: Tokenization cursor */
+){
+  IcuTokenizer *p = (IcuTokenizer *)pTokenizer;
+  IcuCursor *pCsr;
+
+  const int32_t opt = U_FOLD_CASE_DEFAULT;
+  UErrorCode status = U_ZERO_ERROR;
+  int nChar;
+
+  UChar32 c;
+  int iInput = 0;
+  int iOut = 0;
+
+  *ppCursor = 0;
+
+  if( zInput==0 ){
+    nInput = 0;
+    zInput = "";
+  }else if( nInput<0 ){
+    nInput = strlen(zInput);
+  }
+  nChar = nInput+1;
+  pCsr = (IcuCursor *)sqlite3_malloc64(
+      sizeof(IcuCursor) +                /* IcuCursor */
+      ((nChar+3)&~3) * sizeof(UChar) +   /* IcuCursor.aChar[] */
+      (nChar+1) * sizeof(int)            /* IcuCursor.aOffset[] */
+  );
+  if( !pCsr ){
+    return SQLITE_NOMEM;
+  }
+  memset(pCsr, 0, sizeof(IcuCursor));
+  pCsr->aChar = (UChar *)&pCsr[1];
+  pCsr->aOffset = (int *)&pCsr->aChar[(nChar+3)&~3];
+
+  pCsr->aOffset[iOut] = iInput;
+  U8_NEXT(zInput, iInput, nInput, c); 
+  while( c>0 ){
+    int isError = 0;
+    c = u_foldCase(c, opt);
+    U16_APPEND(pCsr->aChar, iOut, nChar, c, isError);
+    if( isError ){
+      sqlite3_free(pCsr);
+      return SQLITE_ERROR;
+    }
+    pCsr->aOffset[iOut] = iInput;
+
+    if( iInput<nInput ){
+      U8_NEXT(zInput, iInput, nInput, c);
+    }else{
+      c = 0;
+    }
+  }
+
+  pCsr->pIter = ubrk_open(UBRK_WORD, p->zLocale, pCsr->aChar, iOut, &status);
+  if( !U_SUCCESS(status) ){
+    sqlite3_free(pCsr);
+    return SQLITE_ERROR;
+  }
+  pCsr->nChar = iOut;
+
+  ubrk_first(pCsr->pIter);
+  *ppCursor = (sqlite3_tokenizer_cursor *)pCsr;
+  return SQLITE_OK;
+}
+
+/*
+** Close a tokenization cursor previously opened by a call to icuOpen().
+*/
+static int icuClose(sqlite3_tokenizer_cursor *pCursor){
+  IcuCursor *pCsr = (IcuCursor *)pCursor;
+  ubrk_close(pCsr->pIter);
+  sqlite3_free(pCsr->zBuffer);
+  sqlite3_free(pCsr);
+  return SQLITE_OK;
+}
+
+/*
+** Extract the next token from a tokenization cursor.
+*/
+static int icuNext(
+  sqlite3_tokenizer_cursor *pCursor,  /* Cursor returned by simpleOpen */
+  const char **ppToken,               /* OUT: *ppToken is the token text */
+  int *pnBytes,                       /* OUT: Number of bytes in token */
+  int *piStartOffset,                 /* OUT: Starting offset of token */
+  int *piEndOffset,                   /* OUT: Ending offset of token */
+  int *piPosition                     /* OUT: Position integer of token */
+){
+  IcuCursor *pCsr = (IcuCursor *)pCursor;
+
+  int iStart = 0;
+  int iEnd = 0;
+  int nByte = 0;
+
+  while( iStart==iEnd ){
+    UChar32 c;
+
+    iStart = ubrk_current(pCsr->pIter);
+    iEnd = ubrk_next(pCsr->pIter);
+    if( iEnd==UBRK_DONE ){
+      return SQLITE_DONE;
+    }
+
+    while( iStart<iEnd ){
+      int iWhite = iStart;
+      U16_NEXT(pCsr->aChar, iWhite, pCsr->nChar, c);
+      if( u_isspace(c) ){
+        iStart = iWhite;
+      }else{
+        break;
+      }
+    }
+    assert(iStart<=iEnd);
+  }
+
+  do {
+    UErrorCode status = U_ZERO_ERROR;
+    if( nByte ){
+      char *zNew = sqlite3_realloc(pCsr->zBuffer, nByte);
+      if( !zNew ){
+        return SQLITE_NOMEM;
+      }
+      pCsr->zBuffer = zNew;
+      pCsr->nBuffer = nByte;
+    }
+
+    u_strToUTF8(
+        pCsr->zBuffer, pCsr->nBuffer, &nByte,    /* Output vars */
+        &pCsr->aChar[iStart], iEnd-iStart,       /* Input vars */
+        &status                                  /* Output success/failure */
+    );
+  } while( nByte>pCsr->nBuffer );
+
+  *ppToken = pCsr->zBuffer;
+  *pnBytes = nByte;
+  *piStartOffset = pCsr->aOffset[iStart];
+  *piEndOffset = pCsr->aOffset[iEnd];
+  *piPosition = pCsr->iToken++;
+
+  return SQLITE_OK;
+}
+
+/*
+** The set of routines that implement the simple tokenizer
+*/
+static const sqlite3_tokenizer_module icuTokenizerModule = {
+  0,                           /* iVersion    */
+  icuCreate,                   /* xCreate     */
+  icuDestroy,                  /* xCreate     */
+  icuOpen,                     /* xOpen       */
+  icuClose,                    /* xClose      */
+  icuNext,                     /* xNext       */
+  0,                           /* xLanguageid */
+};
+
+/*
+** Set *ppModule to point at the implementation of the ICU tokenizer.
+*/
+void sqlite3Fts3IcuTokenizerModule(
+  sqlite3_tokenizer_module const**ppModule
+){
+  *ppModule = &icuTokenizerModule;
+}
+
+#endif /* defined(SQLITE_ENABLE_ICU) */
+#endif /* !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3) */
diff --git a/ext/fts3/fts3_porter.c b/ext/fts3/fts3_porter.c
new file mode 100644
index 0000000000000000000000000000000000000000..fbe7913020a4e975ce997b02a619ca589dc1dc1d
--- /dev/null
+++ b/ext/fts3/fts3_porter.c
@@ -0,0 +1,662 @@
+/*
+** 2006 September 30
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** Implementation of the full-text-search tokenizer that implements
+** a Porter stemmer.
+*/
+
+/*
+** The code in this file is only compiled if:
+**
+**     * The FTS3 module is being built as an extension
+**       (in which case SQLITE_CORE is not defined), or
+**
+**     * The FTS3 module is being built into the core of
+**       SQLite (in which case SQLITE_ENABLE_FTS3 is defined).
+*/
+#include "fts3Int.h"
+#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3)
+
+#include <assert.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "fts3_tokenizer.h"
+
+/*
+** Class derived from sqlite3_tokenizer
+*/
+typedef struct porter_tokenizer {
+  sqlite3_tokenizer base;      /* Base class */
+} porter_tokenizer;
+
+/*
+** Class derived from sqlite3_tokenizer_cursor
+*/
+typedef struct porter_tokenizer_cursor {
+  sqlite3_tokenizer_cursor base;
+  const char *zInput;          /* input we are tokenizing */
+  int nInput;                  /* size of the input */
+  int iOffset;                 /* current position in zInput */
+  int iToken;                  /* index of next token to be returned */
+  char *zToken;                /* storage for current token */
+  int nAllocated;              /* space allocated to zToken buffer */
+} porter_tokenizer_cursor;
+
+
+/*
+** Create a new tokenizer instance.
+*/
+static int porterCreate(
+  int argc, const char * const *argv,
+  sqlite3_tokenizer **ppTokenizer
+){
+  porter_tokenizer *t;
+
+  UNUSED_PARAMETER(argc);
+  UNUSED_PARAMETER(argv);
+
+  t = (porter_tokenizer *) sqlite3_malloc(sizeof(*t));
+  if( t==NULL ) return SQLITE_NOMEM;
+  memset(t, 0, sizeof(*t));
+  *ppTokenizer = &t->base;
+  return SQLITE_OK;
+}
+
+/*
+** Destroy a tokenizer
+*/
+static int porterDestroy(sqlite3_tokenizer *pTokenizer){
+  sqlite3_free(pTokenizer);
+  return SQLITE_OK;
+}
+
+/*
+** Prepare to begin tokenizing a particular string.  The input
+** string to be tokenized is zInput[0..nInput-1].  A cursor
+** used to incrementally tokenize this string is returned in 
+** *ppCursor.
+*/
+static int porterOpen(
+  sqlite3_tokenizer *pTokenizer,         /* The tokenizer */
+  const char *zInput, int nInput,        /* String to be tokenized */
+  sqlite3_tokenizer_cursor **ppCursor    /* OUT: Tokenization cursor */
+){
+  porter_tokenizer_cursor *c;
+
+  UNUSED_PARAMETER(pTokenizer);
+
+  c = (porter_tokenizer_cursor *) sqlite3_malloc(sizeof(*c));
+  if( c==NULL ) return SQLITE_NOMEM;
+
+  c->zInput = zInput;
+  if( zInput==0 ){
+    c->nInput = 0;
+  }else if( nInput<0 ){
+    c->nInput = (int)strlen(zInput);
+  }else{
+    c->nInput = nInput;
+  }
+  c->iOffset = 0;                 /* start tokenizing at the beginning */
+  c->iToken = 0;
+  c->zToken = NULL;               /* no space allocated, yet. */
+  c->nAllocated = 0;
+
+  *ppCursor = &c->base;
+  return SQLITE_OK;
+}
+
+/*
+** Close a tokenization cursor previously opened by a call to
+** porterOpen() above.
+*/
+static int porterClose(sqlite3_tokenizer_cursor *pCursor){
+  porter_tokenizer_cursor *c = (porter_tokenizer_cursor *) pCursor;
+  sqlite3_free(c->zToken);
+  sqlite3_free(c);
+  return SQLITE_OK;
+}
+/*
+** Vowel or consonant
+*/
+static const char cType[] = {
+   0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0,
+   1, 1, 1, 2, 1
+};
+
+/*
+** isConsonant() and isVowel() determine if their first character in
+** the string they point to is a consonant or a vowel, according
+** to Porter ruls.  
+**
+** A consonate is any letter other than 'a', 'e', 'i', 'o', or 'u'.
+** 'Y' is a consonant unless it follows another consonant,
+** in which case it is a vowel.
+**
+** In these routine, the letters are in reverse order.  So the 'y' rule
+** is that 'y' is a consonant unless it is followed by another
+** consonent.
+*/
+static int isVowel(const char*);
+static int isConsonant(const char *z){
+  int j;
+  char x = *z;
+  if( x==0 ) return 0;
+  assert( x>='a' && x<='z' );
+  j = cType[x-'a'];
+  if( j<2 ) return j;
+  return z[1]==0 || isVowel(z + 1);
+}
+static int isVowel(const char *z){
+  int j;
+  char x = *z;
+  if( x==0 ) return 0;
+  assert( x>='a' && x<='z' );
+  j = cType[x-'a'];
+  if( j<2 ) return 1-j;
+  return isConsonant(z + 1);
+}
+
+/*
+** Let any sequence of one or more vowels be represented by V and let
+** C be sequence of one or more consonants.  Then every word can be
+** represented as:
+**
+**           [C] (VC){m} [V]
+**
+** In prose:  A word is an optional consonant followed by zero or
+** vowel-consonant pairs followed by an optional vowel.  "m" is the
+** number of vowel consonant pairs.  This routine computes the value
+** of m for the first i bytes of a word.
+**
+** Return true if the m-value for z is 1 or more.  In other words,
+** return true if z contains at least one vowel that is followed
+** by a consonant.
+**
+** In this routine z[] is in reverse order.  So we are really looking
+** for an instance of a consonant followed by a vowel.
+*/
+static int m_gt_0(const char *z){
+  while( isVowel(z) ){ z++; }
+  if( *z==0 ) return 0;
+  while( isConsonant(z) ){ z++; }
+  return *z!=0;
+}
+
+/* Like mgt0 above except we are looking for a value of m which is
+** exactly 1
+*/
+static int m_eq_1(const char *z){
+  while( isVowel(z) ){ z++; }
+  if( *z==0 ) return 0;
+  while( isConsonant(z) ){ z++; }
+  if( *z==0 ) return 0;
+  while( isVowel(z) ){ z++; }
+  if( *z==0 ) return 1;
+  while( isConsonant(z) ){ z++; }
+  return *z==0;
+}
+
+/* Like mgt0 above except we are looking for a value of m>1 instead
+** or m>0
+*/
+static int m_gt_1(const char *z){
+  while( isVowel(z) ){ z++; }
+  if( *z==0 ) return 0;
+  while( isConsonant(z) ){ z++; }
+  if( *z==0 ) return 0;
+  while( isVowel(z) ){ z++; }
+  if( *z==0 ) return 0;
+  while( isConsonant(z) ){ z++; }
+  return *z!=0;
+}
+
+/*
+** Return TRUE if there is a vowel anywhere within z[0..n-1]
+*/
+static int hasVowel(const char *z){
+  while( isConsonant(z) ){ z++; }
+  return *z!=0;
+}
+
+/*
+** Return TRUE if the word ends in a double consonant.
+**
+** The text is reversed here. So we are really looking at
+** the first two characters of z[].
+*/
+static int doubleConsonant(const char *z){
+  return isConsonant(z) && z[0]==z[1];
+}
+
+/*
+** Return TRUE if the word ends with three letters which
+** are consonant-vowel-consonent and where the final consonant
+** is not 'w', 'x', or 'y'.
+**
+** The word is reversed here.  So we are really checking the
+** first three letters and the first one cannot be in [wxy].
+*/
+static int star_oh(const char *z){
+  return
+    isConsonant(z) &&
+    z[0]!='w' && z[0]!='x' && z[0]!='y' &&
+    isVowel(z+1) &&
+    isConsonant(z+2);
+}
+
+/*
+** If the word ends with zFrom and xCond() is true for the stem
+** of the word that preceeds the zFrom ending, then change the 
+** ending to zTo.
+**
+** The input word *pz and zFrom are both in reverse order.  zTo
+** is in normal order. 
+**
+** Return TRUE if zFrom matches.  Return FALSE if zFrom does not
+** match.  Not that TRUE is returned even if xCond() fails and
+** no substitution occurs.
+*/
+static int stem(
+  char **pz,             /* The word being stemmed (Reversed) */
+  const char *zFrom,     /* If the ending matches this... (Reversed) */
+  const char *zTo,       /* ... change the ending to this (not reversed) */
+  int (*xCond)(const char*)   /* Condition that must be true */
+){
+  char *z = *pz;
+  while( *zFrom && *zFrom==*z ){ z++; zFrom++; }
+  if( *zFrom!=0 ) return 0;
+  if( xCond && !xCond(z) ) return 1;
+  while( *zTo ){
+    *(--z) = *(zTo++);
+  }
+  *pz = z;
+  return 1;
+}
+
+/*
+** This is the fallback stemmer used when the porter stemmer is
+** inappropriate.  The input word is copied into the output with
+** US-ASCII case folding.  If the input word is too long (more
+** than 20 bytes if it contains no digits or more than 6 bytes if
+** it contains digits) then word is truncated to 20 or 6 bytes
+** by taking 10 or 3 bytes from the beginning and end.
+*/
+static void copy_stemmer(const char *zIn, int nIn, char *zOut, int *pnOut){
+  int i, mx, j;
+  int hasDigit = 0;
+  for(i=0; i<nIn; i++){
+    char c = zIn[i];
+    if( c>='A' && c<='Z' ){
+      zOut[i] = c - 'A' + 'a';
+    }else{
+      if( c>='0' && c<='9' ) hasDigit = 1;
+      zOut[i] = c;
+    }
+  }
+  mx = hasDigit ? 3 : 10;
+  if( nIn>mx*2 ){
+    for(j=mx, i=nIn-mx; i<nIn; i++, j++){
+      zOut[j] = zOut[i];
+    }
+    i = j;
+  }
+  zOut[i] = 0;
+  *pnOut = i;
+}
+
+
+/*
+** Stem the input word zIn[0..nIn-1].  Store the output in zOut.
+** zOut is at least big enough to hold nIn bytes.  Write the actual
+** size of the output word (exclusive of the '\0' terminator) into *pnOut.
+**
+** Any upper-case characters in the US-ASCII character set ([A-Z])
+** are converted to lower case.  Upper-case UTF characters are
+** unchanged.
+**
+** Words that are longer than about 20 bytes are stemmed by retaining
+** a few bytes from the beginning and the end of the word.  If the
+** word contains digits, 3 bytes are taken from the beginning and
+** 3 bytes from the end.  For long words without digits, 10 bytes
+** are taken from each end.  US-ASCII case folding still applies.
+** 
+** If the input word contains not digits but does characters not 
+** in [a-zA-Z] then no stemming is attempted and this routine just 
+** copies the input into the input into the output with US-ASCII
+** case folding.
+**
+** Stemming never increases the length of the word.  So there is
+** no chance of overflowing the zOut buffer.
+*/
+static void porter_stemmer(const char *zIn, int nIn, char *zOut, int *pnOut){
+  int i, j;
+  char zReverse[28];
+  char *z, *z2;
+  if( nIn<3 || nIn>=(int)sizeof(zReverse)-7 ){
+    /* The word is too big or too small for the porter stemmer.
+    ** Fallback to the copy stemmer */
+    copy_stemmer(zIn, nIn, zOut, pnOut);
+    return;
+  }
+  for(i=0, j=sizeof(zReverse)-6; i<nIn; i++, j--){
+    char c = zIn[i];
+    if( c>='A' && c<='Z' ){
+      zReverse[j] = c + 'a' - 'A';
+    }else if( c>='a' && c<='z' ){
+      zReverse[j] = c;
+    }else{
+      /* The use of a character not in [a-zA-Z] means that we fallback
+      ** to the copy stemmer */
+      copy_stemmer(zIn, nIn, zOut, pnOut);
+      return;
+    }
+  }
+  memset(&zReverse[sizeof(zReverse)-5], 0, 5);
+  z = &zReverse[j+1];
+
+
+  /* Step 1a */
+  if( z[0]=='s' ){
+    if(
+     !stem(&z, "sess", "ss", 0) &&
+     !stem(&z, "sei", "i", 0)  &&
+     !stem(&z, "ss", "ss", 0)
+    ){
+      z++;
+    }
+  }
+
+  /* Step 1b */  
+  z2 = z;
+  if( stem(&z, "dee", "ee", m_gt_0) ){
+    /* Do nothing.  The work was all in the test */
+  }else if( 
+     (stem(&z, "gni", "", hasVowel) || stem(&z, "de", "", hasVowel))
+      && z!=z2
+  ){
+     if( stem(&z, "ta", "ate", 0) ||
+         stem(&z, "lb", "ble", 0) ||
+         stem(&z, "zi", "ize", 0) ){
+       /* Do nothing.  The work was all in the test */
+     }else if( doubleConsonant(z) && (*z!='l' && *z!='s' && *z!='z') ){
+       z++;
+     }else if( m_eq_1(z) && star_oh(z) ){
+       *(--z) = 'e';
+     }
+  }
+
+  /* Step 1c */
+  if( z[0]=='y' && hasVowel(z+1) ){
+    z[0] = 'i';
+  }
+
+  /* Step 2 */
+  switch( z[1] ){
+   case 'a':
+     if( !stem(&z, "lanoita", "ate", m_gt_0) ){
+       stem(&z, "lanoit", "tion", m_gt_0);
+     }
+     break;
+   case 'c':
+     if( !stem(&z, "icne", "ence", m_gt_0) ){
+       stem(&z, "icna", "ance", m_gt_0);
+     }
+     break;
+   case 'e':
+     stem(&z, "rezi", "ize", m_gt_0);
+     break;
+   case 'g':
+     stem(&z, "igol", "log", m_gt_0);
+     break;
+   case 'l':
+     if( !stem(&z, "ilb", "ble", m_gt_0) 
+      && !stem(&z, "illa", "al", m_gt_0)
+      && !stem(&z, "iltne", "ent", m_gt_0)
+      && !stem(&z, "ile", "e", m_gt_0)
+     ){
+       stem(&z, "ilsuo", "ous", m_gt_0);
+     }
+     break;
+   case 'o':
+     if( !stem(&z, "noitazi", "ize", m_gt_0)
+      && !stem(&z, "noita", "ate", m_gt_0)
+     ){
+       stem(&z, "rota", "ate", m_gt_0);
+     }
+     break;
+   case 's':
+     if( !stem(&z, "msila", "al", m_gt_0)
+      && !stem(&z, "ssenevi", "ive", m_gt_0)
+      && !stem(&z, "ssenluf", "ful", m_gt_0)
+     ){
+       stem(&z, "ssensuo", "ous", m_gt_0);
+     }
+     break;
+   case 't':
+     if( !stem(&z, "itila", "al", m_gt_0)
+      && !stem(&z, "itivi", "ive", m_gt_0)
+     ){
+       stem(&z, "itilib", "ble", m_gt_0);
+     }
+     break;
+  }
+
+  /* Step 3 */
+  switch( z[0] ){
+   case 'e':
+     if( !stem(&z, "etaci", "ic", m_gt_0)
+      && !stem(&z, "evita", "", m_gt_0)
+     ){
+       stem(&z, "ezila", "al", m_gt_0);
+     }
+     break;
+   case 'i':
+     stem(&z, "itici", "ic", m_gt_0);
+     break;
+   case 'l':
+     if( !stem(&z, "laci", "ic", m_gt_0) ){
+       stem(&z, "luf", "", m_gt_0);
+     }
+     break;
+   case 's':
+     stem(&z, "ssen", "", m_gt_0);
+     break;
+  }
+
+  /* Step 4 */
+  switch( z[1] ){
+   case 'a':
+     if( z[0]=='l' && m_gt_1(z+2) ){
+       z += 2;
+     }
+     break;
+   case 'c':
+     if( z[0]=='e' && z[2]=='n' && (z[3]=='a' || z[3]=='e')  && m_gt_1(z+4)  ){
+       z += 4;
+     }
+     break;
+   case 'e':
+     if( z[0]=='r' && m_gt_1(z+2) ){
+       z += 2;
+     }
+     break;
+   case 'i':
+     if( z[0]=='c' && m_gt_1(z+2) ){
+       z += 2;
+     }
+     break;
+   case 'l':
+     if( z[0]=='e' && z[2]=='b' && (z[3]=='a' || z[3]=='i') && m_gt_1(z+4) ){
+       z += 4;
+     }
+     break;
+   case 'n':
+     if( z[0]=='t' ){
+       if( z[2]=='a' ){
+         if( m_gt_1(z+3) ){
+           z += 3;
+         }
+       }else if( z[2]=='e' ){
+         if( !stem(&z, "tneme", "", m_gt_1)
+          && !stem(&z, "tnem", "", m_gt_1)
+         ){
+           stem(&z, "tne", "", m_gt_1);
+         }
+       }
+     }
+     break;
+   case 'o':
+     if( z[0]=='u' ){
+       if( m_gt_1(z+2) ){
+         z += 2;
+       }
+     }else if( z[3]=='s' || z[3]=='t' ){
+       stem(&z, "noi", "", m_gt_1);
+     }
+     break;
+   case 's':
+     if( z[0]=='m' && z[2]=='i' && m_gt_1(z+3) ){
+       z += 3;
+     }
+     break;
+   case 't':
+     if( !stem(&z, "eta", "", m_gt_1) ){
+       stem(&z, "iti", "", m_gt_1);
+     }
+     break;
+   case 'u':
+     if( z[0]=='s' && z[2]=='o' && m_gt_1(z+3) ){
+       z += 3;
+     }
+     break;
+   case 'v':
+   case 'z':
+     if( z[0]=='e' && z[2]=='i' && m_gt_1(z+3) ){
+       z += 3;
+     }
+     break;
+  }
+
+  /* Step 5a */
+  if( z[0]=='e' ){
+    if( m_gt_1(z+1) ){
+      z++;
+    }else if( m_eq_1(z+1) && !star_oh(z+1) ){
+      z++;
+    }
+  }
+
+  /* Step 5b */
+  if( m_gt_1(z) && z[0]=='l' && z[1]=='l' ){
+    z++;
+  }
+
+  /* z[] is now the stemmed word in reverse order.  Flip it back
+  ** around into forward order and return.
+  */
+  *pnOut = i = (int)strlen(z);
+  zOut[i] = 0;
+  while( *z ){
+    zOut[--i] = *(z++);
+  }
+}
+
+/*
+** Characters that can be part of a token.  We assume any character
+** whose value is greater than 0x80 (any UTF character) can be
+** part of a token.  In other words, delimiters all must have
+** values of 0x7f or lower.
+*/
+static const char porterIdChar[] = {
+/* x0 x1 x2 x3 x4 x5 x6 x7 x8 x9 xA xB xC xD xE xF */
+    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0,  /* 3x */
+    0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,  /* 4x */
+    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1,  /* 5x */
+    0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,  /* 6x */
+    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0,  /* 7x */
+};
+#define isDelim(C) (((ch=C)&0x80)==0 && (ch<0x30 || !porterIdChar[ch-0x30]))
+
+/*
+** Extract the next token from a tokenization cursor.  The cursor must
+** have been opened by a prior call to porterOpen().
+*/
+static int porterNext(
+  sqlite3_tokenizer_cursor *pCursor,  /* Cursor returned by porterOpen */
+  const char **pzToken,               /* OUT: *pzToken is the token text */
+  int *pnBytes,                       /* OUT: Number of bytes in token */
+  int *piStartOffset,                 /* OUT: Starting offset of token */
+  int *piEndOffset,                   /* OUT: Ending offset of token */
+  int *piPosition                     /* OUT: Position integer of token */
+){
+  porter_tokenizer_cursor *c = (porter_tokenizer_cursor *) pCursor;
+  const char *z = c->zInput;
+
+  while( c->iOffset<c->nInput ){
+    int iStartOffset, ch;
+
+    /* Scan past delimiter characters */
+    while( c->iOffset<c->nInput && isDelim(z[c->iOffset]) ){
+      c->iOffset++;
+    }
+
+    /* Count non-delimiter characters. */
+    iStartOffset = c->iOffset;
+    while( c->iOffset<c->nInput && !isDelim(z[c->iOffset]) ){
+      c->iOffset++;
+    }
+
+    if( c->iOffset>iStartOffset ){
+      int n = c->iOffset-iStartOffset;
+      if( n>c->nAllocated ){
+        char *pNew;
+        c->nAllocated = n+20;
+        pNew = sqlite3_realloc64(c->zToken, c->nAllocated);
+        if( !pNew ) return SQLITE_NOMEM;
+        c->zToken = pNew;
+      }
+      porter_stemmer(&z[iStartOffset], n, c->zToken, pnBytes);
+      *pzToken = c->zToken;
+      *piStartOffset = iStartOffset;
+      *piEndOffset = c->iOffset;
+      *piPosition = c->iToken++;
+      return SQLITE_OK;
+    }
+  }
+  return SQLITE_DONE;
+}
+
+/*
+** The set of routines that implement the porter-stemmer tokenizer
+*/
+static const sqlite3_tokenizer_module porterTokenizerModule = {
+  0,
+  porterCreate,
+  porterDestroy,
+  porterOpen,
+  porterClose,
+  porterNext,
+  0
+};
+
+/*
+** Allocate a new porter tokenizer.  Return a pointer to the new
+** tokenizer in *ppModule
+*/
+void sqlite3Fts3PorterTokenizerModule(
+  sqlite3_tokenizer_module const**ppModule
+){
+  *ppModule = &porterTokenizerModule;
+}
+
+#endif /* !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3) */
diff --git a/ext/fts3/fts3_snippet.c b/ext/fts3/fts3_snippet.c
new file mode 100644
index 0000000000000000000000000000000000000000..80f62eb3bbfcfe55968e0394d00ec3be5cf9ee37
--- /dev/null
+++ b/ext/fts3/fts3_snippet.c
@@ -0,0 +1,1756 @@
+/*
+** 2009 Oct 23
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+*/
+
+#include "fts3Int.h"
+#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3)
+
+#include <string.h>
+#include <assert.h>
+
+#ifndef SQLITE_AMALGAMATION
+typedef sqlite3_int64 i64;
+#endif
+
+/*
+** Characters that may appear in the second argument to matchinfo().
+*/
+#define FTS3_MATCHINFO_NPHRASE   'p'        /* 1 value */
+#define FTS3_MATCHINFO_NCOL      'c'        /* 1 value */
+#define FTS3_MATCHINFO_NDOC      'n'        /* 1 value */
+#define FTS3_MATCHINFO_AVGLENGTH 'a'        /* nCol values */
+#define FTS3_MATCHINFO_LENGTH    'l'        /* nCol values */
+#define FTS3_MATCHINFO_LCS       's'        /* nCol values */
+#define FTS3_MATCHINFO_HITS      'x'        /* 3*nCol*nPhrase values */
+#define FTS3_MATCHINFO_LHITS     'y'        /* nCol*nPhrase values */
+#define FTS3_MATCHINFO_LHITS_BM  'b'        /* nCol*nPhrase values */
+
+/*
+** The default value for the second argument to matchinfo(). 
+*/
+#define FTS3_MATCHINFO_DEFAULT   "pcx"
+
+
+/*
+** Used as an sqlite3Fts3ExprIterate() context when loading phrase doclists to
+** Fts3Expr.aDoclist[]/nDoclist.
+*/
+typedef struct LoadDoclistCtx LoadDoclistCtx;
+struct LoadDoclistCtx {
+  Fts3Cursor *pCsr;               /* FTS3 Cursor */
+  int nPhrase;                    /* Number of phrases seen so far */
+  int nToken;                     /* Number of tokens seen so far */
+};
+
+/*
+** The following types are used as part of the implementation of the 
+** fts3BestSnippet() routine.
+*/
+typedef struct SnippetIter SnippetIter;
+typedef struct SnippetPhrase SnippetPhrase;
+typedef struct SnippetFragment SnippetFragment;
+
+struct SnippetIter {
+  Fts3Cursor *pCsr;               /* Cursor snippet is being generated from */
+  int iCol;                       /* Extract snippet from this column */
+  int nSnippet;                   /* Requested snippet length (in tokens) */
+  int nPhrase;                    /* Number of phrases in query */
+  SnippetPhrase *aPhrase;         /* Array of size nPhrase */
+  int iCurrent;                   /* First token of current snippet */
+};
+
+struct SnippetPhrase {
+  int nToken;                     /* Number of tokens in phrase */
+  char *pList;                    /* Pointer to start of phrase position list */
+  i64 iHead;                      /* Next value in position list */
+  char *pHead;                    /* Position list data following iHead */
+  i64 iTail;                      /* Next value in trailing position list */
+  char *pTail;                    /* Position list data following iTail */
+};
+
+struct SnippetFragment {
+  int iCol;                       /* Column snippet is extracted from */
+  int iPos;                       /* Index of first token in snippet */
+  u64 covered;                    /* Mask of query phrases covered */
+  u64 hlmask;                     /* Mask of snippet terms to highlight */
+};
+
+/*
+** This type is used as an sqlite3Fts3ExprIterate() context object while 
+** accumulating the data returned by the matchinfo() function.
+*/
+typedef struct MatchInfo MatchInfo;
+struct MatchInfo {
+  Fts3Cursor *pCursor;            /* FTS3 Cursor */
+  int nCol;                       /* Number of columns in table */
+  int nPhrase;                    /* Number of matchable phrases in query */
+  sqlite3_int64 nDoc;             /* Number of docs in database */
+  char flag;
+  u32 *aMatchinfo;                /* Pre-allocated buffer */
+};
+
+/*
+** An instance of this structure is used to manage a pair of buffers, each
+** (nElem * sizeof(u32)) bytes in size. See the MatchinfoBuffer code below
+** for details.
+*/
+struct MatchinfoBuffer {
+  u8 aRef[3];
+  int nElem;
+  int bGlobal;                    /* Set if global data is loaded */
+  char *zMatchinfo;
+  u32 aMatchinfo[1];
+};
+
+
+/*
+** The snippet() and offsets() functions both return text values. An instance
+** of the following structure is used to accumulate those values while the
+** functions are running. See fts3StringAppend() for details.
+*/
+typedef struct StrBuffer StrBuffer;
+struct StrBuffer {
+  char *z;                        /* Pointer to buffer containing string */
+  int n;                          /* Length of z in bytes (excl. nul-term) */
+  int nAlloc;                     /* Allocated size of buffer z in bytes */
+};
+
+
+/*************************************************************************
+** Start of MatchinfoBuffer code.
+*/
+
+/*
+** Allocate a two-slot MatchinfoBuffer object.
+*/
+static MatchinfoBuffer *fts3MIBufferNew(size_t nElem, const char *zMatchinfo){
+  MatchinfoBuffer *pRet;
+  sqlite3_int64 nByte = sizeof(u32) * (2*(sqlite3_int64)nElem + 1)
+                           + sizeof(MatchinfoBuffer);
+  sqlite3_int64 nStr = strlen(zMatchinfo);
+
+  pRet = sqlite3Fts3MallocZero(nByte + nStr+1);
+  if( pRet ){
+    pRet->aMatchinfo[0] = (u8*)(&pRet->aMatchinfo[1]) - (u8*)pRet;
+    pRet->aMatchinfo[1+nElem] = pRet->aMatchinfo[0]
+                                      + sizeof(u32)*((int)nElem+1);
+    pRet->nElem = (int)nElem;
+    pRet->zMatchinfo = ((char*)pRet) + nByte;
+    memcpy(pRet->zMatchinfo, zMatchinfo, nStr+1);
+    pRet->aRef[0] = 1;
+  }
+
+  return pRet;
+}
+
+static void fts3MIBufferFree(void *p){
+  MatchinfoBuffer *pBuf = (MatchinfoBuffer*)((u8*)p - ((u32*)p)[-1]);
+
+  assert( (u32*)p==&pBuf->aMatchinfo[1] 
+       || (u32*)p==&pBuf->aMatchinfo[pBuf->nElem+2] 
+  );
+  if( (u32*)p==&pBuf->aMatchinfo[1] ){
+    pBuf->aRef[1] = 0;
+  }else{
+    pBuf->aRef[2] = 0;
+  }
+
+  if( pBuf->aRef[0]==0 && pBuf->aRef[1]==0 && pBuf->aRef[2]==0 ){
+    sqlite3_free(pBuf);
+  }
+}
+
+static void (*fts3MIBufferAlloc(MatchinfoBuffer *p, u32 **paOut))(void*){
+  void (*xRet)(void*) = 0;
+  u32 *aOut = 0;
+
+  if( p->aRef[1]==0 ){
+    p->aRef[1] = 1;
+    aOut = &p->aMatchinfo[1];
+    xRet = fts3MIBufferFree;
+  }
+  else if( p->aRef[2]==0 ){
+    p->aRef[2] = 1;
+    aOut = &p->aMatchinfo[p->nElem+2];
+    xRet = fts3MIBufferFree;
+  }else{
+    aOut = (u32*)sqlite3_malloc64(p->nElem * sizeof(u32));
+    if( aOut ){
+      xRet = sqlite3_free;
+      if( p->bGlobal ) memcpy(aOut, &p->aMatchinfo[1], p->nElem*sizeof(u32));
+    }
+  }
+
+  *paOut = aOut;
+  return xRet;
+}
+
+static void fts3MIBufferSetGlobal(MatchinfoBuffer *p){
+  p->bGlobal = 1;
+  memcpy(&p->aMatchinfo[2+p->nElem], &p->aMatchinfo[1], p->nElem*sizeof(u32));
+}
+
+/*
+** Free a MatchinfoBuffer object allocated using fts3MIBufferNew()
+*/
+void sqlite3Fts3MIBufferFree(MatchinfoBuffer *p){
+  if( p ){
+    assert( p->aRef[0]==1 );
+    p->aRef[0] = 0;
+    if( p->aRef[0]==0 && p->aRef[1]==0 && p->aRef[2]==0 ){
+      sqlite3_free(p);
+    }
+  }
+}
+
+/* 
+** End of MatchinfoBuffer code.
+*************************************************************************/
+
+
+/*
+** This function is used to help iterate through a position-list. A position
+** list is a list of unique integers, sorted from smallest to largest. Each
+** element of the list is represented by an FTS3 varint that takes the value
+** of the difference between the current element and the previous one plus
+** two. For example, to store the position-list:
+**
+**     4 9 113
+**
+** the three varints:
+**
+**     6 7 106
+**
+** are encoded.
+**
+** When this function is called, *pp points to the start of an element of
+** the list. *piPos contains the value of the previous entry in the list.
+** After it returns, *piPos contains the value of the next element of the
+** list and *pp is advanced to the following varint.
+*/
+static void fts3GetDeltaPosition(char **pp, i64 *piPos){
+  int iVal;
+  *pp += fts3GetVarint32(*pp, &iVal);
+  *piPos += (iVal-2);
+}
+
+/*
+** Helper function for sqlite3Fts3ExprIterate() (see below).
+*/
+static int fts3ExprIterate2(
+  Fts3Expr *pExpr,                /* Expression to iterate phrases of */
+  int *piPhrase,                  /* Pointer to phrase counter */
+  int (*x)(Fts3Expr*,int,void*),  /* Callback function to invoke for phrases */
+  void *pCtx                      /* Second argument to pass to callback */
+){
+  int rc;                         /* Return code */
+  int eType = pExpr->eType;     /* Type of expression node pExpr */
+
+  if( eType!=FTSQUERY_PHRASE ){
+    assert( pExpr->pLeft && pExpr->pRight );
+    rc = fts3ExprIterate2(pExpr->pLeft, piPhrase, x, pCtx);
+    if( rc==SQLITE_OK && eType!=FTSQUERY_NOT ){
+      rc = fts3ExprIterate2(pExpr->pRight, piPhrase, x, pCtx);
+    }
+  }else{
+    rc = x(pExpr, *piPhrase, pCtx);
+    (*piPhrase)++;
+  }
+  return rc;
+}
+
+/*
+** Iterate through all phrase nodes in an FTS3 query, except those that
+** are part of a sub-tree that is the right-hand-side of a NOT operator.
+** For each phrase node found, the supplied callback function is invoked.
+**
+** If the callback function returns anything other than SQLITE_OK, 
+** the iteration is abandoned and the error code returned immediately.
+** Otherwise, SQLITE_OK is returned after a callback has been made for
+** all eligible phrase nodes.
+*/
+int sqlite3Fts3ExprIterate(
+  Fts3Expr *pExpr,                /* Expression to iterate phrases of */
+  int (*x)(Fts3Expr*,int,void*),  /* Callback function to invoke for phrases */
+  void *pCtx                      /* Second argument to pass to callback */
+){
+  int iPhrase = 0;                /* Variable used as the phrase counter */
+  return fts3ExprIterate2(pExpr, &iPhrase, x, pCtx);
+}
+
+/*
+** This is an sqlite3Fts3ExprIterate() callback used while loading the 
+** doclists for each phrase into Fts3Expr.aDoclist[]/nDoclist. See also
+** fts3ExprLoadDoclists().
+*/
+static int fts3ExprLoadDoclistsCb(Fts3Expr *pExpr, int iPhrase, void *ctx){
+  int rc = SQLITE_OK;
+  Fts3Phrase *pPhrase = pExpr->pPhrase;
+  LoadDoclistCtx *p = (LoadDoclistCtx *)ctx;
+
+  UNUSED_PARAMETER(iPhrase);
+
+  p->nPhrase++;
+  p->nToken += pPhrase->nToken;
+
+  return rc;
+}
+
+/*
+** Load the doclists for each phrase in the query associated with FTS3 cursor
+** pCsr. 
+**
+** If pnPhrase is not NULL, then *pnPhrase is set to the number of matchable 
+** phrases in the expression (all phrases except those directly or 
+** indirectly descended from the right-hand-side of a NOT operator). If 
+** pnToken is not NULL, then it is set to the number of tokens in all
+** matchable phrases of the expression.
+*/
+static int fts3ExprLoadDoclists(
+  Fts3Cursor *pCsr,               /* Fts3 cursor for current query */
+  int *pnPhrase,                  /* OUT: Number of phrases in query */
+  int *pnToken                    /* OUT: Number of tokens in query */
+){
+  int rc;                         /* Return Code */
+  LoadDoclistCtx sCtx = {0,0,0};  /* Context for sqlite3Fts3ExprIterate() */
+  sCtx.pCsr = pCsr;
+  rc = sqlite3Fts3ExprIterate(pCsr->pExpr,fts3ExprLoadDoclistsCb,(void*)&sCtx);
+  if( pnPhrase ) *pnPhrase = sCtx.nPhrase;
+  if( pnToken ) *pnToken = sCtx.nToken;
+  return rc;
+}
+
+static int fts3ExprPhraseCountCb(Fts3Expr *pExpr, int iPhrase, void *ctx){
+  (*(int *)ctx)++;
+  pExpr->iPhrase = iPhrase;
+  return SQLITE_OK;
+}
+static int fts3ExprPhraseCount(Fts3Expr *pExpr){
+  int nPhrase = 0;
+  (void)sqlite3Fts3ExprIterate(pExpr, fts3ExprPhraseCountCb, (void *)&nPhrase);
+  return nPhrase;
+}
+
+/*
+** Advance the position list iterator specified by the first two 
+** arguments so that it points to the first element with a value greater
+** than or equal to parameter iNext.
+*/
+static void fts3SnippetAdvance(char **ppIter, i64 *piIter, int iNext){
+  char *pIter = *ppIter;
+  if( pIter ){
+    i64 iIter = *piIter;
+
+    while( iIter<iNext ){
+      if( 0==(*pIter & 0xFE) ){
+        iIter = -1;
+        pIter = 0;
+        break;
+      }
+      fts3GetDeltaPosition(&pIter, &iIter);
+    }
+
+    *piIter = iIter;
+    *ppIter = pIter;
+  }
+}
+
+/*
+** Advance the snippet iterator to the next candidate snippet.
+*/
+static int fts3SnippetNextCandidate(SnippetIter *pIter){
+  int i;                          /* Loop counter */
+
+  if( pIter->iCurrent<0 ){
+    /* The SnippetIter object has just been initialized. The first snippet
+    ** candidate always starts at offset 0 (even if this candidate has a
+    ** score of 0.0).
+    */
+    pIter->iCurrent = 0;
+
+    /* Advance the 'head' iterator of each phrase to the first offset that
+    ** is greater than or equal to (iNext+nSnippet).
+    */
+    for(i=0; i<pIter->nPhrase; i++){
+      SnippetPhrase *pPhrase = &pIter->aPhrase[i];
+      fts3SnippetAdvance(&pPhrase->pHead, &pPhrase->iHead, pIter->nSnippet);
+    }
+  }else{
+    int iStart;
+    int iEnd = 0x7FFFFFFF;
+
+    for(i=0; i<pIter->nPhrase; i++){
+      SnippetPhrase *pPhrase = &pIter->aPhrase[i];
+      if( pPhrase->pHead && pPhrase->iHead<iEnd ){
+        iEnd = pPhrase->iHead;
+      }
+    }
+    if( iEnd==0x7FFFFFFF ){
+      return 1;
+    }
+
+    assert( pIter->nSnippet>=0 );
+    pIter->iCurrent = iStart = iEnd - pIter->nSnippet + 1;
+    for(i=0; i<pIter->nPhrase; i++){
+      SnippetPhrase *pPhrase = &pIter->aPhrase[i];
+      fts3SnippetAdvance(&pPhrase->pHead, &pPhrase->iHead, iEnd+1);
+      fts3SnippetAdvance(&pPhrase->pTail, &pPhrase->iTail, iStart);
+    }
+  }
+
+  return 0;
+}
+
+/*
+** Retrieve information about the current candidate snippet of snippet 
+** iterator pIter.
+*/
+static void fts3SnippetDetails(
+  SnippetIter *pIter,             /* Snippet iterator */
+  u64 mCovered,                   /* Bitmask of phrases already covered */
+  int *piToken,                   /* OUT: First token of proposed snippet */
+  int *piScore,                   /* OUT: "Score" for this snippet */
+  u64 *pmCover,                   /* OUT: Bitmask of phrases covered */
+  u64 *pmHighlight                /* OUT: Bitmask of terms to highlight */
+){
+  int iStart = pIter->iCurrent;   /* First token of snippet */
+  int iScore = 0;                 /* Score of this snippet */
+  int i;                          /* Loop counter */
+  u64 mCover = 0;                 /* Mask of phrases covered by this snippet */
+  u64 mHighlight = 0;             /* Mask of tokens to highlight in snippet */
+
+  for(i=0; i<pIter->nPhrase; i++){
+    SnippetPhrase *pPhrase = &pIter->aPhrase[i];
+    if( pPhrase->pTail ){
+      char *pCsr = pPhrase->pTail;
+      i64 iCsr = pPhrase->iTail;
+
+      while( iCsr<(iStart+pIter->nSnippet) && iCsr>=iStart ){
+        int j;
+        u64 mPhrase = (u64)1 << (i%64);
+        u64 mPos = (u64)1 << (iCsr - iStart);
+        assert( iCsr>=iStart && (iCsr - iStart)<=64 );
+        assert( i>=0 );
+        if( (mCover|mCovered)&mPhrase ){
+          iScore++;
+        }else{
+          iScore += 1000;
+        }
+        mCover |= mPhrase;
+
+        for(j=0; j<pPhrase->nToken && j<pIter->nSnippet; j++){
+          mHighlight |= (mPos>>j);
+        }
+
+        if( 0==(*pCsr & 0x0FE) ) break;
+        fts3GetDeltaPosition(&pCsr, &iCsr);
+      }
+    }
+  }
+
+  /* Set the output variables before returning. */
+  *piToken = iStart;
+  *piScore = iScore;
+  *pmCover = mCover;
+  *pmHighlight = mHighlight;
+}
+
+/*
+** This function is an sqlite3Fts3ExprIterate() callback used by
+** fts3BestSnippet().  Each invocation populates an element of the
+** SnippetIter.aPhrase[] array.
+*/
+static int fts3SnippetFindPositions(Fts3Expr *pExpr, int iPhrase, void *ctx){
+  SnippetIter *p = (SnippetIter *)ctx;
+  SnippetPhrase *pPhrase = &p->aPhrase[iPhrase];
+  char *pCsr;
+  int rc;
+
+  pPhrase->nToken = pExpr->pPhrase->nToken;
+  rc = sqlite3Fts3EvalPhrasePoslist(p->pCsr, pExpr, p->iCol, &pCsr);
+  assert( rc==SQLITE_OK || pCsr==0 );
+  if( pCsr ){
+    i64 iFirst = 0;
+    pPhrase->pList = pCsr;
+    fts3GetDeltaPosition(&pCsr, &iFirst);
+    if( iFirst<0 ){
+      rc = FTS_CORRUPT_VTAB;
+    }else{
+      pPhrase->pHead = pCsr;
+      pPhrase->pTail = pCsr;
+      pPhrase->iHead = iFirst;
+      pPhrase->iTail = iFirst;
+    }
+  }else{
+    assert( rc!=SQLITE_OK || (
+       pPhrase->pList==0 && pPhrase->pHead==0 && pPhrase->pTail==0 
+    ));
+  }
+
+  return rc;
+}
+
+/*
+** Select the fragment of text consisting of nFragment contiguous tokens 
+** from column iCol that represent the "best" snippet. The best snippet
+** is the snippet with the highest score, where scores are calculated
+** by adding:
+**
+**   (a) +1 point for each occurrence of a matchable phrase in the snippet.
+**
+**   (b) +1000 points for the first occurrence of each matchable phrase in 
+**       the snippet for which the corresponding mCovered bit is not set.
+**
+** The selected snippet parameters are stored in structure *pFragment before
+** returning. The score of the selected snippet is stored in *piScore
+** before returning.
+*/
+static int fts3BestSnippet(
+  int nSnippet,                   /* Desired snippet length */
+  Fts3Cursor *pCsr,               /* Cursor to create snippet for */
+  int iCol,                       /* Index of column to create snippet from */
+  u64 mCovered,                   /* Mask of phrases already covered */
+  u64 *pmSeen,                    /* IN/OUT: Mask of phrases seen */
+  SnippetFragment *pFragment,     /* OUT: Best snippet found */
+  int *piScore                    /* OUT: Score of snippet pFragment */
+){
+  int rc;                         /* Return Code */
+  int nList;                      /* Number of phrases in expression */
+  SnippetIter sIter;              /* Iterates through snippet candidates */
+  sqlite3_int64 nByte;            /* Number of bytes of space to allocate */
+  int iBestScore = -1;            /* Best snippet score found so far */
+  int i;                          /* Loop counter */
+
+  memset(&sIter, 0, sizeof(sIter));
+
+  /* Iterate through the phrases in the expression to count them. The same
+  ** callback makes sure the doclists are loaded for each phrase.
+  */
+  rc = fts3ExprLoadDoclists(pCsr, &nList, 0);
+  if( rc!=SQLITE_OK ){
+    return rc;
+  }
+
+  /* Now that it is known how many phrases there are, allocate and zero
+  ** the required space using malloc().
+  */
+  nByte = sizeof(SnippetPhrase) * nList;
+  sIter.aPhrase = (SnippetPhrase *)sqlite3Fts3MallocZero(nByte);
+  if( !sIter.aPhrase ){
+    return SQLITE_NOMEM;
+  }
+
+  /* Initialize the contents of the SnippetIter object. Then iterate through
+  ** the set of phrases in the expression to populate the aPhrase[] array.
+  */
+  sIter.pCsr = pCsr;
+  sIter.iCol = iCol;
+  sIter.nSnippet = nSnippet;
+  sIter.nPhrase = nList;
+  sIter.iCurrent = -1;
+  rc = sqlite3Fts3ExprIterate(
+      pCsr->pExpr, fts3SnippetFindPositions, (void*)&sIter
+  );
+  if( rc==SQLITE_OK ){
+
+    /* Set the *pmSeen output variable. */
+    for(i=0; i<nList; i++){
+      if( sIter.aPhrase[i].pHead ){
+        *pmSeen |= (u64)1 << (i%64);
+      }
+    }
+
+    /* Loop through all candidate snippets. Store the best snippet in 
+     ** *pFragment. Store its associated 'score' in iBestScore.
+     */
+    pFragment->iCol = iCol;
+    while( !fts3SnippetNextCandidate(&sIter) ){
+      int iPos;
+      int iScore;
+      u64 mCover;
+      u64 mHighlite;
+      fts3SnippetDetails(&sIter, mCovered, &iPos, &iScore, &mCover,&mHighlite);
+      assert( iScore>=0 );
+      if( iScore>iBestScore ){
+        pFragment->iPos = iPos;
+        pFragment->hlmask = mHighlite;
+        pFragment->covered = mCover;
+        iBestScore = iScore;
+      }
+    }
+
+    *piScore = iBestScore;
+  }
+  sqlite3_free(sIter.aPhrase);
+  return rc;
+}
+
+
+/*
+** Append a string to the string-buffer passed as the first argument.
+**
+** If nAppend is negative, then the length of the string zAppend is
+** determined using strlen().
+*/
+static int fts3StringAppend(
+  StrBuffer *pStr,                /* Buffer to append to */
+  const char *zAppend,            /* Pointer to data to append to buffer */
+  int nAppend                     /* Size of zAppend in bytes (or -1) */
+){
+  if( nAppend<0 ){
+    nAppend = (int)strlen(zAppend);
+  }
+
+  /* If there is insufficient space allocated at StrBuffer.z, use realloc()
+  ** to grow the buffer until so that it is big enough to accomadate the
+  ** appended data.
+  */
+  if( pStr->n+nAppend+1>=pStr->nAlloc ){
+    sqlite3_int64 nAlloc = pStr->nAlloc+(sqlite3_int64)nAppend+100;
+    char *zNew = sqlite3_realloc64(pStr->z, nAlloc);
+    if( !zNew ){
+      return SQLITE_NOMEM;
+    }
+    pStr->z = zNew;
+    pStr->nAlloc = nAlloc;
+  }
+  assert( pStr->z!=0 && (pStr->nAlloc >= pStr->n+nAppend+1) );
+
+  /* Append the data to the string buffer. */
+  memcpy(&pStr->z[pStr->n], zAppend, nAppend);
+  pStr->n += nAppend;
+  pStr->z[pStr->n] = '\0';
+
+  return SQLITE_OK;
+}
+
+/*
+** The fts3BestSnippet() function often selects snippets that end with a
+** query term. That is, the final term of the snippet is always a term
+** that requires highlighting. For example, if 'X' is a highlighted term
+** and '.' is a non-highlighted term, BestSnippet() may select:
+**
+**     ........X.....X
+**
+** This function "shifts" the beginning of the snippet forward in the 
+** document so that there are approximately the same number of 
+** non-highlighted terms to the right of the final highlighted term as there
+** are to the left of the first highlighted term. For example, to this:
+**
+**     ....X.....X....
+**
+** This is done as part of extracting the snippet text, not when selecting
+** the snippet. Snippet selection is done based on doclists only, so there
+** is no way for fts3BestSnippet() to know whether or not the document 
+** actually contains terms that follow the final highlighted term. 
+*/
+static int fts3SnippetShift(
+  Fts3Table *pTab,                /* FTS3 table snippet comes from */
+  int iLangid,                    /* Language id to use in tokenizing */
+  int nSnippet,                   /* Number of tokens desired for snippet */
+  const char *zDoc,               /* Document text to extract snippet from */
+  int nDoc,                       /* Size of buffer zDoc in bytes */
+  int *piPos,                     /* IN/OUT: First token of snippet */
+  u64 *pHlmask                    /* IN/OUT: Mask of tokens to highlight */
+){
+  u64 hlmask = *pHlmask;          /* Local copy of initial highlight-mask */
+
+  if( hlmask ){
+    int nLeft;                    /* Tokens to the left of first highlight */
+    int nRight;                   /* Tokens to the right of last highlight */
+    int nDesired;                 /* Ideal number of tokens to shift forward */
+
+    for(nLeft=0; !(hlmask & ((u64)1 << nLeft)); nLeft++);
+    for(nRight=0; !(hlmask & ((u64)1 << (nSnippet-1-nRight))); nRight++);
+    assert( (nSnippet-1-nRight)<=63 && (nSnippet-1-nRight)>=0 );
+    nDesired = (nLeft-nRight)/2;
+
+    /* Ideally, the start of the snippet should be pushed forward in the
+    ** document nDesired tokens. This block checks if there are actually
+    ** nDesired tokens to the right of the snippet. If so, *piPos and
+    ** *pHlMask are updated to shift the snippet nDesired tokens to the
+    ** right. Otherwise, the snippet is shifted by the number of tokens
+    ** available.
+    */
+    if( nDesired>0 ){
+      int nShift;                 /* Number of tokens to shift snippet by */
+      int iCurrent = 0;           /* Token counter */
+      int rc;                     /* Return Code */
+      sqlite3_tokenizer_module *pMod;
+      sqlite3_tokenizer_cursor *pC;
+      pMod = (sqlite3_tokenizer_module *)pTab->pTokenizer->pModule;
+
+      /* Open a cursor on zDoc/nDoc. Check if there are (nSnippet+nDesired)
+      ** or more tokens in zDoc/nDoc.
+      */
+      rc = sqlite3Fts3OpenTokenizer(pTab->pTokenizer, iLangid, zDoc, nDoc, &pC);
+      if( rc!=SQLITE_OK ){
+        return rc;
+      }
+      while( rc==SQLITE_OK && iCurrent<(nSnippet+nDesired) ){
+        const char *ZDUMMY; int DUMMY1 = 0, DUMMY2 = 0, DUMMY3 = 0;
+        rc = pMod->xNext(pC, &ZDUMMY, &DUMMY1, &DUMMY2, &DUMMY3, &iCurrent);
+      }
+      pMod->xClose(pC);
+      if( rc!=SQLITE_OK && rc!=SQLITE_DONE ){ return rc; }
+
+      nShift = (rc==SQLITE_DONE)+iCurrent-nSnippet;
+      assert( nShift<=nDesired );
+      if( nShift>0 ){
+        *piPos += nShift;
+        *pHlmask = hlmask >> nShift;
+      }
+    }
+  }
+  return SQLITE_OK;
+}
+
+/*
+** Extract the snippet text for fragment pFragment from cursor pCsr and
+** append it to string buffer pOut.
+*/
+static int fts3SnippetText(
+  Fts3Cursor *pCsr,               /* FTS3 Cursor */
+  SnippetFragment *pFragment,     /* Snippet to extract */
+  int iFragment,                  /* Fragment number */
+  int isLast,                     /* True for final fragment in snippet */
+  int nSnippet,                   /* Number of tokens in extracted snippet */
+  const char *zOpen,              /* String inserted before highlighted term */
+  const char *zClose,             /* String inserted after highlighted term */
+  const char *zEllipsis,          /* String inserted between snippets */
+  StrBuffer *pOut                 /* Write output here */
+){
+  Fts3Table *pTab = (Fts3Table *)pCsr->base.pVtab;
+  int rc;                         /* Return code */
+  const char *zDoc;               /* Document text to extract snippet from */
+  int nDoc;                       /* Size of zDoc in bytes */
+  int iCurrent = 0;               /* Current token number of document */
+  int iEnd = 0;                   /* Byte offset of end of current token */
+  int isShiftDone = 0;            /* True after snippet is shifted */
+  int iPos = pFragment->iPos;     /* First token of snippet */
+  u64 hlmask = pFragment->hlmask; /* Highlight-mask for snippet */
+  int iCol = pFragment->iCol+1;   /* Query column to extract text from */
+  sqlite3_tokenizer_module *pMod; /* Tokenizer module methods object */
+  sqlite3_tokenizer_cursor *pC;   /* Tokenizer cursor open on zDoc/nDoc */
+  
+  zDoc = (const char *)sqlite3_column_text(pCsr->pStmt, iCol);
+  if( zDoc==0 ){
+    if( sqlite3_column_type(pCsr->pStmt, iCol)!=SQLITE_NULL ){
+      return SQLITE_NOMEM;
+    }
+    return SQLITE_OK;
+  }
+  nDoc = sqlite3_column_bytes(pCsr->pStmt, iCol);
+
+  /* Open a token cursor on the document. */
+  pMod = (sqlite3_tokenizer_module *)pTab->pTokenizer->pModule;
+  rc = sqlite3Fts3OpenTokenizer(pTab->pTokenizer, pCsr->iLangid, zDoc,nDoc,&pC);
+  if( rc!=SQLITE_OK ){
+    return rc;
+  }
+
+  while( rc==SQLITE_OK ){
+    const char *ZDUMMY;           /* Dummy argument used with tokenizer */
+    int DUMMY1 = -1;              /* Dummy argument used with tokenizer */
+    int iBegin = 0;               /* Offset in zDoc of start of token */
+    int iFin = 0;                 /* Offset in zDoc of end of token */
+    int isHighlight = 0;          /* True for highlighted terms */
+
+    /* Variable DUMMY1 is initialized to a negative value above. Elsewhere
+    ** in the FTS code the variable that the third argument to xNext points to
+    ** is initialized to zero before the first (*but not necessarily
+    ** subsequent*) call to xNext(). This is done for a particular application
+    ** that needs to know whether or not the tokenizer is being used for
+    ** snippet generation or for some other purpose.
+    **
+    ** Extreme care is required when writing code to depend on this
+    ** initialization. It is not a documented part of the tokenizer interface.
+    ** If a tokenizer is used directly by any code outside of FTS, this
+    ** convention might not be respected.  */
+    rc = pMod->xNext(pC, &ZDUMMY, &DUMMY1, &iBegin, &iFin, &iCurrent);
+    if( rc!=SQLITE_OK ){
+      if( rc==SQLITE_DONE ){
+        /* Special case - the last token of the snippet is also the last token
+        ** of the column. Append any punctuation that occurred between the end
+        ** of the previous token and the end of the document to the output. 
+        ** Then break out of the loop. */
+        rc = fts3StringAppend(pOut, &zDoc[iEnd], -1);
+      }
+      break;
+    }
+    if( iCurrent<iPos ){ continue; }
+
+    if( !isShiftDone ){
+      int n = nDoc - iBegin;
+      rc = fts3SnippetShift(
+          pTab, pCsr->iLangid, nSnippet, &zDoc[iBegin], n, &iPos, &hlmask
+      );
+      isShiftDone = 1;
+
+      /* Now that the shift has been done, check if the initial "..." are
+      ** required. They are required if (a) this is not the first fragment,
+      ** or (b) this fragment does not begin at position 0 of its column. 
+      */
+      if( rc==SQLITE_OK ){
+        if( iPos>0 || iFragment>0 ){
+          rc = fts3StringAppend(pOut, zEllipsis, -1);
+        }else if( iBegin ){
+          rc = fts3StringAppend(pOut, zDoc, iBegin);
+        }
+      }
+      if( rc!=SQLITE_OK || iCurrent<iPos ) continue;
+    }
+
+    if( iCurrent>=(iPos+nSnippet) ){
+      if( isLast ){
+        rc = fts3StringAppend(pOut, zEllipsis, -1);
+      }
+      break;
+    }
+
+    /* Set isHighlight to true if this term should be highlighted. */
+    isHighlight = (hlmask & ((u64)1 << (iCurrent-iPos)))!=0;
+
+    if( iCurrent>iPos ) rc = fts3StringAppend(pOut, &zDoc[iEnd], iBegin-iEnd);
+    if( rc==SQLITE_OK && isHighlight ) rc = fts3StringAppend(pOut, zOpen, -1);
+    if( rc==SQLITE_OK ) rc = fts3StringAppend(pOut, &zDoc[iBegin], iFin-iBegin);
+    if( rc==SQLITE_OK && isHighlight ) rc = fts3StringAppend(pOut, zClose, -1);
+
+    iEnd = iFin;
+  }
+
+  pMod->xClose(pC);
+  return rc;
+}
+
+
+/*
+** This function is used to count the entries in a column-list (a 
+** delta-encoded list of term offsets within a single column of a single 
+** row). When this function is called, *ppCollist should point to the
+** beginning of the first varint in the column-list (the varint that
+** contains the position of the first matching term in the column data).
+** Before returning, *ppCollist is set to point to the first byte after
+** the last varint in the column-list (either the 0x00 signifying the end
+** of the position-list, or the 0x01 that precedes the column number of
+** the next column in the position-list).
+**
+** The number of elements in the column-list is returned.
+*/
+static int fts3ColumnlistCount(char **ppCollist){
+  char *pEnd = *ppCollist;
+  char c = 0;
+  int nEntry = 0;
+
+  /* A column-list is terminated by either a 0x01 or 0x00. */
+  while( 0xFE & (*pEnd | c) ){
+    c = *pEnd++ & 0x80;
+    if( !c ) nEntry++;
+  }
+
+  *ppCollist = pEnd;
+  return nEntry;
+}
+
+/*
+** This function gathers 'y' or 'b' data for a single phrase.
+*/
+static int fts3ExprLHits(
+  Fts3Expr *pExpr,                /* Phrase expression node */
+  MatchInfo *p                    /* Matchinfo context */
+){
+  Fts3Table *pTab = (Fts3Table *)p->pCursor->base.pVtab;
+  int iStart;
+  Fts3Phrase *pPhrase = pExpr->pPhrase;
+  char *pIter = pPhrase->doclist.pList;
+  int iCol = 0;
+
+  assert( p->flag==FTS3_MATCHINFO_LHITS_BM || p->flag==FTS3_MATCHINFO_LHITS );
+  if( p->flag==FTS3_MATCHINFO_LHITS ){
+    iStart = pExpr->iPhrase * p->nCol;
+  }else{
+    iStart = pExpr->iPhrase * ((p->nCol + 31) / 32);
+  }
+
+  if( pIter ) while( 1 ){
+    int nHit = fts3ColumnlistCount(&pIter);
+    if( (pPhrase->iColumn>=pTab->nColumn || pPhrase->iColumn==iCol) ){
+      if( p->flag==FTS3_MATCHINFO_LHITS ){
+        p->aMatchinfo[iStart + iCol] = (u32)nHit;
+      }else if( nHit ){
+        p->aMatchinfo[iStart + (iCol+1)/32] |= (1 << (iCol&0x1F));
+      }
+    }
+    assert( *pIter==0x00 || *pIter==0x01 );
+    if( *pIter!=0x01 ) break;
+    pIter++;
+    pIter += fts3GetVarint32(pIter, &iCol);
+    if( iCol>=p->nCol ) return FTS_CORRUPT_VTAB;
+  }
+  return SQLITE_OK;
+}
+
+/*
+** Gather the results for matchinfo directives 'y' and 'b'.
+*/
+static int fts3ExprLHitGather(
+  Fts3Expr *pExpr,
+  MatchInfo *p
+){
+  int rc = SQLITE_OK;
+  assert( (pExpr->pLeft==0)==(pExpr->pRight==0) );
+  if( pExpr->bEof==0 && pExpr->iDocid==p->pCursor->iPrevId ){
+    if( pExpr->pLeft ){
+      rc = fts3ExprLHitGather(pExpr->pLeft, p);
+      if( rc==SQLITE_OK ) rc = fts3ExprLHitGather(pExpr->pRight, p);
+    }else{
+      rc = fts3ExprLHits(pExpr, p);
+    }
+  }
+  return rc;
+}
+
+/*
+** sqlite3Fts3ExprIterate() callback used to collect the "global" matchinfo
+** stats for a single query. 
+**
+** sqlite3Fts3ExprIterate() callback to load the 'global' elements of a
+** FTS3_MATCHINFO_HITS matchinfo array. The global stats are those elements 
+** of the matchinfo array that are constant for all rows returned by the 
+** current query.
+**
+** Argument pCtx is actually a pointer to a struct of type MatchInfo. This
+** function populates Matchinfo.aMatchinfo[] as follows:
+**
+**   for(iCol=0; iCol<nCol; iCol++){
+**     aMatchinfo[3*iPhrase*nCol + 3*iCol + 1] = X;
+**     aMatchinfo[3*iPhrase*nCol + 3*iCol + 2] = Y;
+**   }
+**
+** where X is the number of matches for phrase iPhrase is column iCol of all
+** rows of the table. Y is the number of rows for which column iCol contains
+** at least one instance of phrase iPhrase.
+**
+** If the phrase pExpr consists entirely of deferred tokens, then all X and
+** Y values are set to nDoc, where nDoc is the number of documents in the 
+** file system. This is done because the full-text index doclist is required
+** to calculate these values properly, and the full-text index doclist is
+** not available for deferred tokens.
+*/
+static int fts3ExprGlobalHitsCb(
+  Fts3Expr *pExpr,                /* Phrase expression node */
+  int iPhrase,                    /* Phrase number (numbered from zero) */
+  void *pCtx                      /* Pointer to MatchInfo structure */
+){
+  MatchInfo *p = (MatchInfo *)pCtx;
+  return sqlite3Fts3EvalPhraseStats(
+      p->pCursor, pExpr, &p->aMatchinfo[3*iPhrase*p->nCol]
+  );
+}
+
+/*
+** sqlite3Fts3ExprIterate() callback used to collect the "local" part of the
+** FTS3_MATCHINFO_HITS array. The local stats are those elements of the 
+** array that are different for each row returned by the query.
+*/
+static int fts3ExprLocalHitsCb(
+  Fts3Expr *pExpr,                /* Phrase expression node */
+  int iPhrase,                    /* Phrase number */
+  void *pCtx                      /* Pointer to MatchInfo structure */
+){
+  int rc = SQLITE_OK;
+  MatchInfo *p = (MatchInfo *)pCtx;
+  int iStart = iPhrase * p->nCol * 3;
+  int i;
+
+  for(i=0; i<p->nCol && rc==SQLITE_OK; i++){
+    char *pCsr;
+    rc = sqlite3Fts3EvalPhrasePoslist(p->pCursor, pExpr, i, &pCsr);
+    if( pCsr ){
+      p->aMatchinfo[iStart+i*3] = fts3ColumnlistCount(&pCsr);
+    }else{
+      p->aMatchinfo[iStart+i*3] = 0;
+    }
+  }
+
+  return rc;
+}
+
+static int fts3MatchinfoCheck(
+  Fts3Table *pTab, 
+  char cArg,
+  char **pzErr
+){
+  if( (cArg==FTS3_MATCHINFO_NPHRASE)
+   || (cArg==FTS3_MATCHINFO_NCOL)
+   || (cArg==FTS3_MATCHINFO_NDOC && pTab->bFts4)
+   || (cArg==FTS3_MATCHINFO_AVGLENGTH && pTab->bFts4)
+   || (cArg==FTS3_MATCHINFO_LENGTH && pTab->bHasDocsize)
+   || (cArg==FTS3_MATCHINFO_LCS)
+   || (cArg==FTS3_MATCHINFO_HITS)
+   || (cArg==FTS3_MATCHINFO_LHITS)
+   || (cArg==FTS3_MATCHINFO_LHITS_BM)
+  ){
+    return SQLITE_OK;
+  }
+  sqlite3Fts3ErrMsg(pzErr, "unrecognized matchinfo request: %c", cArg);
+  return SQLITE_ERROR;
+}
+
+static size_t fts3MatchinfoSize(MatchInfo *pInfo, char cArg){
+  size_t nVal;                      /* Number of integers output by cArg */
+
+  switch( cArg ){
+    case FTS3_MATCHINFO_NDOC:
+    case FTS3_MATCHINFO_NPHRASE: 
+    case FTS3_MATCHINFO_NCOL: 
+      nVal = 1;
+      break;
+
+    case FTS3_MATCHINFO_AVGLENGTH:
+    case FTS3_MATCHINFO_LENGTH:
+    case FTS3_MATCHINFO_LCS:
+      nVal = pInfo->nCol;
+      break;
+
+    case FTS3_MATCHINFO_LHITS:
+      nVal = pInfo->nCol * pInfo->nPhrase;
+      break;
+
+    case FTS3_MATCHINFO_LHITS_BM:
+      nVal = pInfo->nPhrase * ((pInfo->nCol + 31) / 32);
+      break;
+
+    default:
+      assert( cArg==FTS3_MATCHINFO_HITS );
+      nVal = pInfo->nCol * pInfo->nPhrase * 3;
+      break;
+  }
+
+  return nVal;
+}
+
+static int fts3MatchinfoSelectDoctotal(
+  Fts3Table *pTab,
+  sqlite3_stmt **ppStmt,
+  sqlite3_int64 *pnDoc,
+  const char **paLen,
+  const char **ppEnd
+){
+  sqlite3_stmt *pStmt;
+  const char *a;
+  const char *pEnd;
+  sqlite3_int64 nDoc;
+  int n;
+
+
+  if( !*ppStmt ){
+    int rc = sqlite3Fts3SelectDoctotal(pTab, ppStmt);
+    if( rc!=SQLITE_OK ) return rc;
+  }
+  pStmt = *ppStmt;
+  assert( sqlite3_data_count(pStmt)==1 );
+
+  n = sqlite3_column_bytes(pStmt, 0);
+  a = sqlite3_column_blob(pStmt, 0);
+  if( a==0 ){
+    return FTS_CORRUPT_VTAB;
+  }
+  pEnd = a + n;
+  a += sqlite3Fts3GetVarintBounded(a, pEnd, &nDoc);
+  if( nDoc<=0 || a>pEnd ){
+    return FTS_CORRUPT_VTAB;
+  }
+  *pnDoc = nDoc;
+
+  if( paLen ) *paLen = a;
+  if( ppEnd ) *ppEnd = pEnd;
+  return SQLITE_OK;
+}
+
+/*
+** An instance of the following structure is used to store state while 
+** iterating through a multi-column position-list corresponding to the
+** hits for a single phrase on a single row in order to calculate the
+** values for a matchinfo() FTS3_MATCHINFO_LCS request.
+*/
+typedef struct LcsIterator LcsIterator;
+struct LcsIterator {
+  Fts3Expr *pExpr;                /* Pointer to phrase expression */
+  int iPosOffset;                 /* Tokens count up to end of this phrase */
+  char *pRead;                    /* Cursor used to iterate through aDoclist */
+  int iPos;                       /* Current position */
+};
+
+/* 
+** If LcsIterator.iCol is set to the following value, the iterator has
+** finished iterating through all offsets for all columns.
+*/
+#define LCS_ITERATOR_FINISHED 0x7FFFFFFF;
+
+static int fts3MatchinfoLcsCb(
+  Fts3Expr *pExpr,                /* Phrase expression node */
+  int iPhrase,                    /* Phrase number (numbered from zero) */
+  void *pCtx                      /* Pointer to MatchInfo structure */
+){
+  LcsIterator *aIter = (LcsIterator *)pCtx;
+  aIter[iPhrase].pExpr = pExpr;
+  return SQLITE_OK;
+}
+
+/*
+** Advance the iterator passed as an argument to the next position. Return
+** 1 if the iterator is at EOF or if it now points to the start of the
+** position list for the next column.
+*/
+static int fts3LcsIteratorAdvance(LcsIterator *pIter){
+  char *pRead;
+  sqlite3_int64 iRead;
+  int rc = 0;
+
+  if( NEVER(pIter==0) ) return 1;
+  pRead = pIter->pRead;
+  pRead += sqlite3Fts3GetVarint(pRead, &iRead);
+  if( iRead==0 || iRead==1 ){
+    pRead = 0;
+    rc = 1;
+  }else{
+    pIter->iPos += (int)(iRead-2);
+  }
+
+  pIter->pRead = pRead;
+  return rc;
+}
+  
+/*
+** This function implements the FTS3_MATCHINFO_LCS matchinfo() flag. 
+**
+** If the call is successful, the longest-common-substring lengths for each
+** column are written into the first nCol elements of the pInfo->aMatchinfo[] 
+** array before returning. SQLITE_OK is returned in this case.
+**
+** Otherwise, if an error occurs, an SQLite error code is returned and the
+** data written to the first nCol elements of pInfo->aMatchinfo[] is 
+** undefined.
+*/
+static int fts3MatchinfoLcs(Fts3Cursor *pCsr, MatchInfo *pInfo){
+  LcsIterator *aIter;
+  int i;
+  int iCol;
+  int nToken = 0;
+  int rc = SQLITE_OK;
+
+  /* Allocate and populate the array of LcsIterator objects. The array
+  ** contains one element for each matchable phrase in the query.
+  **/
+  aIter = sqlite3Fts3MallocZero(sizeof(LcsIterator) * pCsr->nPhrase);
+  if( !aIter ) return SQLITE_NOMEM;
+  (void)sqlite3Fts3ExprIterate(pCsr->pExpr, fts3MatchinfoLcsCb, (void*)aIter);
+
+  for(i=0; i<pInfo->nPhrase; i++){
+    LcsIterator *pIter = &aIter[i];
+    nToken -= pIter->pExpr->pPhrase->nToken;
+    pIter->iPosOffset = nToken;
+  }
+
+  for(iCol=0; iCol<pInfo->nCol; iCol++){
+    int nLcs = 0;                 /* LCS value for this column */
+    int nLive = 0;                /* Number of iterators in aIter not at EOF */
+
+    for(i=0; i<pInfo->nPhrase; i++){
+      LcsIterator *pIt = &aIter[i];
+      rc = sqlite3Fts3EvalPhrasePoslist(pCsr, pIt->pExpr, iCol, &pIt->pRead);
+      if( rc!=SQLITE_OK ) goto matchinfo_lcs_out;
+      if( pIt->pRead ){
+        pIt->iPos = pIt->iPosOffset;
+        fts3LcsIteratorAdvance(pIt);
+        if( pIt->pRead==0 ){
+          rc = FTS_CORRUPT_VTAB;
+          goto matchinfo_lcs_out;
+        }
+        nLive++;
+      }
+    }
+
+    while( nLive>0 ){
+      LcsIterator *pAdv = 0;      /* The iterator to advance by one position */
+      int nThisLcs = 0;           /* LCS for the current iterator positions */
+
+      for(i=0; i<pInfo->nPhrase; i++){
+        LcsIterator *pIter = &aIter[i];
+        if( pIter->pRead==0 ){
+          /* This iterator is already at EOF for this column. */
+          nThisLcs = 0;
+        }else{
+          if( pAdv==0 || pIter->iPos<pAdv->iPos ){
+            pAdv = pIter;
+          }
+          if( nThisLcs==0 || pIter->iPos==pIter[-1].iPos ){
+            nThisLcs++;
+          }else{
+            nThisLcs = 1;
+          }
+          if( nThisLcs>nLcs ) nLcs = nThisLcs;
+        }
+      }
+      if( fts3LcsIteratorAdvance(pAdv) ) nLive--;
+    }
+
+    pInfo->aMatchinfo[iCol] = nLcs;
+  }
+
+ matchinfo_lcs_out:
+  sqlite3_free(aIter);
+  return rc;
+}
+
+/*
+** Populate the buffer pInfo->aMatchinfo[] with an array of integers to
+** be returned by the matchinfo() function. Argument zArg contains the 
+** format string passed as the second argument to matchinfo (or the
+** default value "pcx" if no second argument was specified). The format
+** string has already been validated and the pInfo->aMatchinfo[] array
+** is guaranteed to be large enough for the output.
+**
+** If bGlobal is true, then populate all fields of the matchinfo() output.
+** If it is false, then assume that those fields that do not change between
+** rows (i.e. FTS3_MATCHINFO_NPHRASE, NCOL, NDOC, AVGLENGTH and part of HITS)
+** have already been populated.
+**
+** Return SQLITE_OK if successful, or an SQLite error code if an error 
+** occurs. If a value other than SQLITE_OK is returned, the state the
+** pInfo->aMatchinfo[] buffer is left in is undefined.
+*/
+static int fts3MatchinfoValues(
+  Fts3Cursor *pCsr,               /* FTS3 cursor object */
+  int bGlobal,                    /* True to grab the global stats */
+  MatchInfo *pInfo,               /* Matchinfo context object */
+  const char *zArg                /* Matchinfo format string */
+){
+  int rc = SQLITE_OK;
+  int i;
+  Fts3Table *pTab = (Fts3Table *)pCsr->base.pVtab;
+  sqlite3_stmt *pSelect = 0;
+
+  for(i=0; rc==SQLITE_OK && zArg[i]; i++){
+    pInfo->flag = zArg[i];
+    switch( zArg[i] ){
+      case FTS3_MATCHINFO_NPHRASE:
+        if( bGlobal ) pInfo->aMatchinfo[0] = pInfo->nPhrase;
+        break;
+
+      case FTS3_MATCHINFO_NCOL:
+        if( bGlobal ) pInfo->aMatchinfo[0] = pInfo->nCol;
+        break;
+        
+      case FTS3_MATCHINFO_NDOC:
+        if( bGlobal ){
+          sqlite3_int64 nDoc = 0;
+          rc = fts3MatchinfoSelectDoctotal(pTab, &pSelect, &nDoc, 0, 0);
+          pInfo->aMatchinfo[0] = (u32)nDoc;
+        }
+        break;
+
+      case FTS3_MATCHINFO_AVGLENGTH: 
+        if( bGlobal ){
+          sqlite3_int64 nDoc;     /* Number of rows in table */
+          const char *a;          /* Aggregate column length array */
+          const char *pEnd;       /* First byte past end of length array */
+
+          rc = fts3MatchinfoSelectDoctotal(pTab, &pSelect, &nDoc, &a, &pEnd);
+          if( rc==SQLITE_OK ){
+            int iCol;
+            for(iCol=0; iCol<pInfo->nCol; iCol++){
+              u32 iVal;
+              sqlite3_int64 nToken;
+              a += sqlite3Fts3GetVarint(a, &nToken);
+              if( a>pEnd ){
+                rc = SQLITE_CORRUPT_VTAB;
+                break;
+              }
+              iVal = (u32)(((u32)(nToken&0xffffffff)+nDoc/2)/nDoc);
+              pInfo->aMatchinfo[iCol] = iVal;
+            }
+          }
+        }
+        break;
+
+      case FTS3_MATCHINFO_LENGTH: {
+        sqlite3_stmt *pSelectDocsize = 0;
+        rc = sqlite3Fts3SelectDocsize(pTab, pCsr->iPrevId, &pSelectDocsize);
+        if( rc==SQLITE_OK ){
+          int iCol;
+          const char *a = sqlite3_column_blob(pSelectDocsize, 0);
+          const char *pEnd = a + sqlite3_column_bytes(pSelectDocsize, 0);
+          for(iCol=0; iCol<pInfo->nCol; iCol++){
+            sqlite3_int64 nToken;
+            a += sqlite3Fts3GetVarintBounded(a, pEnd, &nToken);
+            if( a>pEnd ){
+              rc = SQLITE_CORRUPT_VTAB;
+              break;
+            }
+            pInfo->aMatchinfo[iCol] = (u32)nToken;
+          }
+        }
+        sqlite3_reset(pSelectDocsize);
+        break;
+      }
+
+      case FTS3_MATCHINFO_LCS:
+        rc = fts3ExprLoadDoclists(pCsr, 0, 0);
+        if( rc==SQLITE_OK ){
+          rc = fts3MatchinfoLcs(pCsr, pInfo);
+        }
+        break;
+
+      case FTS3_MATCHINFO_LHITS_BM:
+      case FTS3_MATCHINFO_LHITS: {
+        size_t nZero = fts3MatchinfoSize(pInfo, zArg[i]) * sizeof(u32);
+        memset(pInfo->aMatchinfo, 0, nZero);
+        rc = fts3ExprLHitGather(pCsr->pExpr, pInfo);
+        break;
+      }
+
+      default: {
+        Fts3Expr *pExpr;
+        assert( zArg[i]==FTS3_MATCHINFO_HITS );
+        pExpr = pCsr->pExpr;
+        rc = fts3ExprLoadDoclists(pCsr, 0, 0);
+        if( rc!=SQLITE_OK ) break;
+        if( bGlobal ){
+          if( pCsr->pDeferred ){
+            rc = fts3MatchinfoSelectDoctotal(pTab, &pSelect, &pInfo->nDoc,0,0);
+            if( rc!=SQLITE_OK ) break;
+          }
+          rc = sqlite3Fts3ExprIterate(pExpr, fts3ExprGlobalHitsCb,(void*)pInfo);
+          sqlite3Fts3EvalTestDeferred(pCsr, &rc);
+          if( rc!=SQLITE_OK ) break;
+        }
+        (void)sqlite3Fts3ExprIterate(pExpr, fts3ExprLocalHitsCb,(void*)pInfo);
+        break;
+      }
+    }
+
+    pInfo->aMatchinfo += fts3MatchinfoSize(pInfo, zArg[i]);
+  }
+
+  sqlite3_reset(pSelect);
+  return rc;
+}
+
+
+/*
+** Populate pCsr->aMatchinfo[] with data for the current row. The 
+** 'matchinfo' data is an array of 32-bit unsigned integers (C type u32).
+*/
+static void fts3GetMatchinfo(
+  sqlite3_context *pCtx,        /* Return results here */
+  Fts3Cursor *pCsr,               /* FTS3 Cursor object */
+  const char *zArg                /* Second argument to matchinfo() function */
+){
+  MatchInfo sInfo;
+  Fts3Table *pTab = (Fts3Table *)pCsr->base.pVtab;
+  int rc = SQLITE_OK;
+  int bGlobal = 0;                /* Collect 'global' stats as well as local */
+
+  u32 *aOut = 0;
+  void (*xDestroyOut)(void*) = 0;
+
+  memset(&sInfo, 0, sizeof(MatchInfo));
+  sInfo.pCursor = pCsr;
+  sInfo.nCol = pTab->nColumn;
+
+  /* If there is cached matchinfo() data, but the format string for the 
+  ** cache does not match the format string for this request, discard 
+  ** the cached data. */
+  if( pCsr->pMIBuffer && strcmp(pCsr->pMIBuffer->zMatchinfo, zArg) ){
+    sqlite3Fts3MIBufferFree(pCsr->pMIBuffer);
+    pCsr->pMIBuffer = 0;
+  }
+
+  /* If Fts3Cursor.pMIBuffer is NULL, then this is the first time the
+  ** matchinfo function has been called for this query. In this case 
+  ** allocate the array used to accumulate the matchinfo data and
+  ** initialize those elements that are constant for every row.
+  */
+  if( pCsr->pMIBuffer==0 ){
+    size_t nMatchinfo = 0;        /* Number of u32 elements in match-info */
+    int i;                        /* Used to iterate through zArg */
+
+    /* Determine the number of phrases in the query */
+    pCsr->nPhrase = fts3ExprPhraseCount(pCsr->pExpr);
+    sInfo.nPhrase = pCsr->nPhrase;
+
+    /* Determine the number of integers in the buffer returned by this call. */
+    for(i=0; zArg[i]; i++){
+      char *zErr = 0;
+      if( fts3MatchinfoCheck(pTab, zArg[i], &zErr) ){
+        sqlite3_result_error(pCtx, zErr, -1);
+        sqlite3_free(zErr);
+        return;
+      }
+      nMatchinfo += fts3MatchinfoSize(&sInfo, zArg[i]);
+    }
+
+    /* Allocate space for Fts3Cursor.aMatchinfo[] and Fts3Cursor.zMatchinfo. */
+    pCsr->pMIBuffer = fts3MIBufferNew(nMatchinfo, zArg);
+    if( !pCsr->pMIBuffer ) rc = SQLITE_NOMEM;
+
+    pCsr->isMatchinfoNeeded = 1;
+    bGlobal = 1;
+  }
+
+  if( rc==SQLITE_OK ){
+    xDestroyOut = fts3MIBufferAlloc(pCsr->pMIBuffer, &aOut);
+    if( xDestroyOut==0 ){
+      rc = SQLITE_NOMEM;
+    }
+  }
+
+  if( rc==SQLITE_OK ){
+    sInfo.aMatchinfo = aOut;
+    sInfo.nPhrase = pCsr->nPhrase;
+    rc = fts3MatchinfoValues(pCsr, bGlobal, &sInfo, zArg);
+    if( bGlobal ){
+      fts3MIBufferSetGlobal(pCsr->pMIBuffer);
+    }
+  }
+
+  if( rc!=SQLITE_OK ){
+    sqlite3_result_error_code(pCtx, rc);
+    if( xDestroyOut ) xDestroyOut(aOut);
+  }else{
+    int n = pCsr->pMIBuffer->nElem * sizeof(u32);
+    sqlite3_result_blob(pCtx, aOut, n, xDestroyOut);
+  }
+}
+
+/*
+** Implementation of snippet() function.
+*/
+void sqlite3Fts3Snippet(
+  sqlite3_context *pCtx,          /* SQLite function call context */
+  Fts3Cursor *pCsr,               /* Cursor object */
+  const char *zStart,             /* Snippet start text - "<b>" */
+  const char *zEnd,               /* Snippet end text - "</b>" */
+  const char *zEllipsis,          /* Snippet ellipsis text - "<b>...</b>" */
+  int iCol,                       /* Extract snippet from this column */
+  int nToken                      /* Approximate number of tokens in snippet */
+){
+  Fts3Table *pTab = (Fts3Table *)pCsr->base.pVtab;
+  int rc = SQLITE_OK;
+  int i;
+  StrBuffer res = {0, 0, 0};
+
+  /* The returned text includes up to four fragments of text extracted from
+  ** the data in the current row. The first iteration of the for(...) loop
+  ** below attempts to locate a single fragment of text nToken tokens in 
+  ** size that contains at least one instance of all phrases in the query
+  ** expression that appear in the current row. If such a fragment of text
+  ** cannot be found, the second iteration of the loop attempts to locate
+  ** a pair of fragments, and so on.
+  */
+  int nSnippet = 0;               /* Number of fragments in this snippet */
+  SnippetFragment aSnippet[4];    /* Maximum of 4 fragments per snippet */
+  int nFToken = -1;               /* Number of tokens in each fragment */
+
+  if( !pCsr->pExpr ){
+    sqlite3_result_text(pCtx, "", 0, SQLITE_STATIC);
+    return;
+  }
+
+  /* Limit the snippet length to 64 tokens. */
+  if( nToken<-64 ) nToken = -64;
+  if( nToken>+64 ) nToken = +64;
+
+  for(nSnippet=1; 1; nSnippet++){
+
+    int iSnip;                    /* Loop counter 0..nSnippet-1 */
+    u64 mCovered = 0;             /* Bitmask of phrases covered by snippet */
+    u64 mSeen = 0;                /* Bitmask of phrases seen by BestSnippet() */
+
+    if( nToken>=0 ){
+      nFToken = (nToken+nSnippet-1) / nSnippet;
+    }else{
+      nFToken = -1 * nToken;
+    }
+
+    for(iSnip=0; iSnip<nSnippet; iSnip++){
+      int iBestScore = -1;        /* Best score of columns checked so far */
+      int iRead;                  /* Used to iterate through columns */
+      SnippetFragment *pFragment = &aSnippet[iSnip];
+
+      memset(pFragment, 0, sizeof(*pFragment));
+
+      /* Loop through all columns of the table being considered for snippets.
+      ** If the iCol argument to this function was negative, this means all
+      ** columns of the FTS3 table. Otherwise, only column iCol is considered.
+      */
+      for(iRead=0; iRead<pTab->nColumn; iRead++){
+        SnippetFragment sF = {0, 0, 0, 0};
+        int iS = 0;
+        if( iCol>=0 && iRead!=iCol ) continue;
+
+        /* Find the best snippet of nFToken tokens in column iRead. */
+        rc = fts3BestSnippet(nFToken, pCsr, iRead, mCovered, &mSeen, &sF, &iS);
+        if( rc!=SQLITE_OK ){
+          goto snippet_out;
+        }
+        if( iS>iBestScore ){
+          *pFragment = sF;
+          iBestScore = iS;
+        }
+      }
+
+      mCovered |= pFragment->covered;
+    }
+
+    /* If all query phrases seen by fts3BestSnippet() are present in at least
+    ** one of the nSnippet snippet fragments, break out of the loop.
+    */
+    assert( (mCovered&mSeen)==mCovered );
+    if( mSeen==mCovered || nSnippet==SizeofArray(aSnippet) ) break;
+  }
+
+  assert( nFToken>0 );
+
+  for(i=0; i<nSnippet && rc==SQLITE_OK; i++){
+    rc = fts3SnippetText(pCsr, &aSnippet[i], 
+        i, (i==nSnippet-1), nFToken, zStart, zEnd, zEllipsis, &res
+    );
+  }
+
+ snippet_out:
+  sqlite3Fts3SegmentsClose(pTab);
+  if( rc!=SQLITE_OK ){
+    sqlite3_result_error_code(pCtx, rc);
+    sqlite3_free(res.z);
+  }else{
+    sqlite3_result_text(pCtx, res.z, -1, sqlite3_free);
+  }
+}
+
+
+typedef struct TermOffset TermOffset;
+typedef struct TermOffsetCtx TermOffsetCtx;
+
+struct TermOffset {
+  char *pList;                    /* Position-list */
+  i64 iPos;                       /* Position just read from pList */
+  i64 iOff;                       /* Offset of this term from read positions */
+};
+
+struct TermOffsetCtx {
+  Fts3Cursor *pCsr;
+  int iCol;                       /* Column of table to populate aTerm for */
+  int iTerm;
+  sqlite3_int64 iDocid;
+  TermOffset *aTerm;
+};
+
+/*
+** This function is an sqlite3Fts3ExprIterate() callback used by sqlite3Fts3Offsets().
+*/
+static int fts3ExprTermOffsetInit(Fts3Expr *pExpr, int iPhrase, void *ctx){
+  TermOffsetCtx *p = (TermOffsetCtx *)ctx;
+  int nTerm;                      /* Number of tokens in phrase */
+  int iTerm;                      /* For looping through nTerm phrase terms */
+  char *pList;                    /* Pointer to position list for phrase */
+  i64 iPos = 0;                   /* First position in position-list */
+  int rc;
+
+  UNUSED_PARAMETER(iPhrase);
+  rc = sqlite3Fts3EvalPhrasePoslist(p->pCsr, pExpr, p->iCol, &pList);
+  nTerm = pExpr->pPhrase->nToken;
+  if( pList ){
+    fts3GetDeltaPosition(&pList, &iPos);
+    assert_fts3_nc( iPos>=0 );
+  }
+
+  for(iTerm=0; iTerm<nTerm; iTerm++){
+    TermOffset *pT = &p->aTerm[p->iTerm++];
+    pT->iOff = nTerm-iTerm-1;
+    pT->pList = pList;
+    pT->iPos = iPos;
+  }
+
+  return rc;
+}
+
+/*
+** Implementation of offsets() function.
+*/
+void sqlite3Fts3Offsets(
+  sqlite3_context *pCtx,          /* SQLite function call context */
+  Fts3Cursor *pCsr                /* Cursor object */
+){
+  Fts3Table *pTab = (Fts3Table *)pCsr->base.pVtab;
+  sqlite3_tokenizer_module const *pMod = pTab->pTokenizer->pModule;
+  int rc;                         /* Return Code */
+  int nToken;                     /* Number of tokens in query */
+  int iCol;                       /* Column currently being processed */
+  StrBuffer res = {0, 0, 0};      /* Result string */
+  TermOffsetCtx sCtx;             /* Context for fts3ExprTermOffsetInit() */
+
+  if( !pCsr->pExpr ){
+    sqlite3_result_text(pCtx, "", 0, SQLITE_STATIC);
+    return;
+  }
+
+  memset(&sCtx, 0, sizeof(sCtx));
+  assert( pCsr->isRequireSeek==0 );
+
+  /* Count the number of terms in the query */
+  rc = fts3ExprLoadDoclists(pCsr, 0, &nToken);
+  if( rc!=SQLITE_OK ) goto offsets_out;
+
+  /* Allocate the array of TermOffset iterators. */
+  sCtx.aTerm = (TermOffset *)sqlite3Fts3MallocZero(sizeof(TermOffset)*nToken);
+  if( 0==sCtx.aTerm ){
+    rc = SQLITE_NOMEM;
+    goto offsets_out;
+  }
+  sCtx.iDocid = pCsr->iPrevId;
+  sCtx.pCsr = pCsr;
+
+  /* Loop through the table columns, appending offset information to 
+  ** string-buffer res for each column.
+  */
+  for(iCol=0; iCol<pTab->nColumn; iCol++){
+    sqlite3_tokenizer_cursor *pC; /* Tokenizer cursor */
+    const char *ZDUMMY;           /* Dummy argument used with xNext() */
+    int NDUMMY = 0;               /* Dummy argument used with xNext() */
+    int iStart = 0;
+    int iEnd = 0;
+    int iCurrent = 0;
+    const char *zDoc;
+    int nDoc;
+
+    /* Initialize the contents of sCtx.aTerm[] for column iCol. This 
+    ** operation may fail if the database contains corrupt records.
+    */
+    sCtx.iCol = iCol;
+    sCtx.iTerm = 0;
+    rc = sqlite3Fts3ExprIterate(
+        pCsr->pExpr, fts3ExprTermOffsetInit, (void*)&sCtx
+    );
+    if( rc!=SQLITE_OK ) goto offsets_out;
+
+    /* Retreive the text stored in column iCol. If an SQL NULL is stored 
+    ** in column iCol, jump immediately to the next iteration of the loop.
+    ** If an OOM occurs while retrieving the data (this can happen if SQLite
+    ** needs to transform the data from utf-16 to utf-8), return SQLITE_NOMEM 
+    ** to the caller. 
+    */
+    zDoc = (const char *)sqlite3_column_text(pCsr->pStmt, iCol+1);
+    nDoc = sqlite3_column_bytes(pCsr->pStmt, iCol+1);
+    if( zDoc==0 ){
+      if( sqlite3_column_type(pCsr->pStmt, iCol+1)==SQLITE_NULL ){
+        continue;
+      }
+      rc = SQLITE_NOMEM;
+      goto offsets_out;
+    }
+
+    /* Initialize a tokenizer iterator to iterate through column iCol. */
+    rc = sqlite3Fts3OpenTokenizer(pTab->pTokenizer, pCsr->iLangid,
+        zDoc, nDoc, &pC
+    );
+    if( rc!=SQLITE_OK ) goto offsets_out;
+
+    rc = pMod->xNext(pC, &ZDUMMY, &NDUMMY, &iStart, &iEnd, &iCurrent);
+    while( rc==SQLITE_OK ){
+      int i;                      /* Used to loop through terms */
+      int iMinPos = 0x7FFFFFFF;   /* Position of next token */
+      TermOffset *pTerm = 0;      /* TermOffset associated with next token */
+
+      for(i=0; i<nToken; i++){
+        TermOffset *pT = &sCtx.aTerm[i];
+        if( pT->pList && (pT->iPos-pT->iOff)<iMinPos ){
+          iMinPos = pT->iPos-pT->iOff;
+          pTerm = pT;
+        }
+      }
+
+      if( !pTerm ){
+        /* All offsets for this column have been gathered. */
+        rc = SQLITE_DONE;
+      }else{
+        assert_fts3_nc( iCurrent<=iMinPos );
+        if( 0==(0xFE&*pTerm->pList) ){
+          pTerm->pList = 0;
+        }else{
+          fts3GetDeltaPosition(&pTerm->pList, &pTerm->iPos);
+        }
+        while( rc==SQLITE_OK && iCurrent<iMinPos ){
+          rc = pMod->xNext(pC, &ZDUMMY, &NDUMMY, &iStart, &iEnd, &iCurrent);
+        }
+        if( rc==SQLITE_OK ){
+          char aBuffer[64];
+          sqlite3_snprintf(sizeof(aBuffer), aBuffer, 
+              "%d %d %d %d ", iCol, pTerm-sCtx.aTerm, iStart, iEnd-iStart
+          );
+          rc = fts3StringAppend(&res, aBuffer, -1);
+        }else if( rc==SQLITE_DONE && pTab->zContentTbl==0 ){
+          rc = FTS_CORRUPT_VTAB;
+        }
+      }
+    }
+    if( rc==SQLITE_DONE ){
+      rc = SQLITE_OK;
+    }
+
+    pMod->xClose(pC);
+    if( rc!=SQLITE_OK ) goto offsets_out;
+  }
+
+ offsets_out:
+  sqlite3_free(sCtx.aTerm);
+  assert( rc!=SQLITE_DONE );
+  sqlite3Fts3SegmentsClose(pTab);
+  if( rc!=SQLITE_OK ){
+    sqlite3_result_error_code(pCtx,  rc);
+    sqlite3_free(res.z);
+  }else{
+    sqlite3_result_text(pCtx, res.z, res.n-1, sqlite3_free);
+  }
+  return;
+}
+
+/*
+** Implementation of matchinfo() function.
+*/
+void sqlite3Fts3Matchinfo(
+  sqlite3_context *pContext,      /* Function call context */
+  Fts3Cursor *pCsr,               /* FTS3 table cursor */
+  const char *zArg                /* Second arg to matchinfo() function */
+){
+  Fts3Table *pTab = (Fts3Table *)pCsr->base.pVtab;
+  const char *zFormat;
+
+  if( zArg ){
+    zFormat = zArg;
+  }else{
+    zFormat = FTS3_MATCHINFO_DEFAULT;
+  }
+
+  if( !pCsr->pExpr ){
+    sqlite3_result_blob(pContext, "", 0, SQLITE_STATIC);
+    return;
+  }else{
+    /* Retrieve matchinfo() data. */
+    fts3GetMatchinfo(pContext, pCsr, zFormat);
+    sqlite3Fts3SegmentsClose(pTab);
+  }
+}
+
+#endif
diff --git a/ext/fts3/fts3_term.c b/ext/fts3/fts3_term.c
new file mode 100644
index 0000000000000000000000000000000000000000..655dd9f35a82a0804cb69f54e32e9bce7e7a091c
--- /dev/null
+++ b/ext/fts3/fts3_term.c
@@ -0,0 +1,383 @@
+/*
+** 2011 Jan 27
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This file is not part of the production FTS code. It is only used for
+** testing. It contains a virtual table implementation that provides direct 
+** access to the full-text index of an FTS table. 
+*/
+
+#include "fts3Int.h"
+#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3)
+#ifdef SQLITE_TEST
+
+#include <string.h>
+#include <assert.h>
+#include <stdlib.h>
+
+typedef struct Fts3termTable Fts3termTable;
+typedef struct Fts3termCursor Fts3termCursor;
+
+struct Fts3termTable {
+  sqlite3_vtab base;              /* Base class used by SQLite core */
+  int iIndex;                     /* Index for Fts3Table.aIndex[] */
+  Fts3Table *pFts3Tab;
+};
+
+struct Fts3termCursor {
+  sqlite3_vtab_cursor base;       /* Base class used by SQLite core */
+  Fts3MultiSegReader csr;        /* Must be right after "base" */
+  Fts3SegFilter filter;
+
+  int isEof;                      /* True if cursor is at EOF */
+  char *pNext;
+
+  sqlite3_int64 iRowid;           /* Current 'rowid' value */
+  sqlite3_int64 iDocid;           /* Current 'docid' value */
+  int iCol;                       /* Current 'col' value */
+  int iPos;                       /* Current 'pos' value */
+};
+
+/*
+** Schema of the terms table.
+*/
+#define FTS3_TERMS_SCHEMA "CREATE TABLE x(term, docid, col, pos)"
+
+/*
+** This function does all the work for both the xConnect and xCreate methods.
+** These tables have no persistent representation of their own, so xConnect
+** and xCreate are identical operations.
+*/
+static int fts3termConnectMethod(
+  sqlite3 *db,                    /* Database connection */
+  void *pCtx,                     /* Non-zero for an fts4prefix table */
+  int argc,                       /* Number of elements in argv array */
+  const char * const *argv,       /* xCreate/xConnect argument array */
+  sqlite3_vtab **ppVtab,          /* OUT: New sqlite3_vtab object */
+  char **pzErr                    /* OUT: sqlite3_malloc'd error message */
+){
+  char const *zDb;                /* Name of database (e.g. "main") */
+  char const *zFts3;              /* Name of fts3 table */
+  int nDb;                        /* Result of strlen(zDb) */
+  int nFts3;                      /* Result of strlen(zFts3) */
+  sqlite3_int64 nByte;            /* Bytes of space to allocate here */
+  int rc;                         /* value returned by declare_vtab() */
+  Fts3termTable *p;               /* Virtual table object to return */
+  int iIndex = 0;
+
+  UNUSED_PARAMETER(pCtx);
+  if( argc==5 ){
+    iIndex = atoi(argv[4]);
+    argc--;
+  }
+  
+  *ppVtab = 0;
+
+  /* The user should specify a single argument - the name of an fts3 table. */
+  if( argc!=4 ){
+    sqlite3Fts3ErrMsg(pzErr,
+        "wrong number of arguments to fts4term constructor"
+    );
+    return SQLITE_ERROR;
+  }
+
+  zDb = argv[1]; 
+  nDb = (int)strlen(zDb);
+  zFts3 = argv[3];
+  nFts3 = (int)strlen(zFts3);
+
+  rc = sqlite3_declare_vtab(db, FTS3_TERMS_SCHEMA);
+  if( rc!=SQLITE_OK ) return rc;
+
+  nByte = sizeof(Fts3termTable);
+  p = (Fts3termTable *)sqlite3Fts3MallocZero(nByte);
+  if( !p ) return SQLITE_NOMEM;
+
+  p->pFts3Tab = (Fts3Table*)sqlite3Fts3MallocZero(
+      sizeof(Fts3Table) + nDb + nFts3 + 2
+  );
+  if( p->pFts3Tab==0 ){
+    sqlite3_free(p);
+    return SQLITE_NOMEM;
+  }
+  p->pFts3Tab->zDb = (char *)&p->pFts3Tab[1];
+  p->pFts3Tab->zName = &p->pFts3Tab->zDb[nDb+1];
+  p->pFts3Tab->db = db;
+  p->pFts3Tab->nIndex = iIndex+1;
+  p->iIndex = iIndex;
+
+  memcpy((char *)p->pFts3Tab->zDb, zDb, nDb);
+  memcpy((char *)p->pFts3Tab->zName, zFts3, nFts3);
+  sqlite3Fts3Dequote((char *)p->pFts3Tab->zName);
+
+  *ppVtab = (sqlite3_vtab *)p;
+  return SQLITE_OK;
+}
+
+/*
+** This function does the work for both the xDisconnect and xDestroy methods.
+** These tables have no persistent representation of their own, so xDisconnect
+** and xDestroy are identical operations.
+*/
+static int fts3termDisconnectMethod(sqlite3_vtab *pVtab){
+  Fts3termTable *p = (Fts3termTable *)pVtab;
+  Fts3Table *pFts3 = p->pFts3Tab;
+  int i;
+
+  /* Free any prepared statements held */
+  for(i=0; i<SizeofArray(pFts3->aStmt); i++){
+    sqlite3_finalize(pFts3->aStmt[i]);
+  }
+  sqlite3_free(pFts3->zSegmentsTbl);
+  sqlite3_free(pFts3);
+  sqlite3_free(p);
+  return SQLITE_OK;
+}
+
+#define FTS4AUX_EQ_CONSTRAINT 1
+#define FTS4AUX_GE_CONSTRAINT 2
+#define FTS4AUX_LE_CONSTRAINT 4
+
+/*
+** xBestIndex - Analyze a WHERE and ORDER BY clause.
+*/
+static int fts3termBestIndexMethod(
+  sqlite3_vtab *pVTab, 
+  sqlite3_index_info *pInfo
+){
+  UNUSED_PARAMETER(pVTab);
+
+  /* This vtab naturally does "ORDER BY term, docid, col, pos".  */
+  if( pInfo->nOrderBy ){
+    int i;
+    for(i=0; i<pInfo->nOrderBy; i++){
+      if( pInfo->aOrderBy[i].iColumn!=i || pInfo->aOrderBy[i].desc ) break;
+    }
+    if( i==pInfo->nOrderBy ){
+      pInfo->orderByConsumed = 1;
+    }
+  }
+
+  return SQLITE_OK;
+}
+
+/*
+** xOpen - Open a cursor.
+*/
+static int fts3termOpenMethod(sqlite3_vtab *pVTab, sqlite3_vtab_cursor **ppCsr){
+  Fts3termCursor *pCsr;            /* Pointer to cursor object to return */
+
+  UNUSED_PARAMETER(pVTab);
+
+  pCsr = (Fts3termCursor *)sqlite3_malloc(sizeof(Fts3termCursor));
+  if( !pCsr ) return SQLITE_NOMEM;
+  memset(pCsr, 0, sizeof(Fts3termCursor));
+
+  *ppCsr = (sqlite3_vtab_cursor *)pCsr;
+  return SQLITE_OK;
+}
+
+/*
+** xClose - Close a cursor.
+*/
+static int fts3termCloseMethod(sqlite3_vtab_cursor *pCursor){
+  Fts3Table *pFts3 = ((Fts3termTable *)pCursor->pVtab)->pFts3Tab;
+  Fts3termCursor *pCsr = (Fts3termCursor *)pCursor;
+
+  sqlite3Fts3SegmentsClose(pFts3);
+  sqlite3Fts3SegReaderFinish(&pCsr->csr);
+  sqlite3_free(pCsr);
+  return SQLITE_OK;
+}
+
+/*
+** xNext - Advance the cursor to the next row, if any.
+*/
+static int fts3termNextMethod(sqlite3_vtab_cursor *pCursor){
+  Fts3termCursor *pCsr = (Fts3termCursor *)pCursor;
+  Fts3Table *pFts3 = ((Fts3termTable *)pCursor->pVtab)->pFts3Tab;
+  int rc;
+  sqlite3_int64 v;
+
+  /* Increment our pretend rowid value. */
+  pCsr->iRowid++;
+
+  /* Advance to the next term in the full-text index. */
+  if( pCsr->csr.aDoclist==0 
+   || pCsr->pNext>=&pCsr->csr.aDoclist[pCsr->csr.nDoclist-1]
+  ){
+    rc = sqlite3Fts3SegReaderStep(pFts3, &pCsr->csr);
+    if( rc!=SQLITE_ROW ){
+      pCsr->isEof = 1;
+      return rc;
+    }
+
+    pCsr->iCol = 0;
+    pCsr->iPos = 0;
+    pCsr->iDocid = 0;
+    pCsr->pNext = pCsr->csr.aDoclist;
+
+    /* Read docid */
+    pCsr->pNext += sqlite3Fts3GetVarint(pCsr->pNext, &pCsr->iDocid);
+  }
+
+  pCsr->pNext += sqlite3Fts3GetVarint(pCsr->pNext, &v);
+  if( v==0 ){
+    pCsr->pNext += sqlite3Fts3GetVarint(pCsr->pNext, &v);
+    pCsr->iDocid += v;
+    pCsr->pNext += sqlite3Fts3GetVarint(pCsr->pNext, &v);
+    pCsr->iCol = 0;
+    pCsr->iPos = 0;
+  }
+
+  if( v==1 ){
+    pCsr->pNext += sqlite3Fts3GetVarint(pCsr->pNext, &v);
+    pCsr->iCol += (int)v;
+    pCsr->iPos = 0;
+    pCsr->pNext += sqlite3Fts3GetVarint(pCsr->pNext, &v);
+  }
+
+  pCsr->iPos += (int)(v - 2);
+
+  return SQLITE_OK;
+}
+
+/*
+** xFilter - Initialize a cursor to point at the start of its data.
+*/
+static int fts3termFilterMethod(
+  sqlite3_vtab_cursor *pCursor,   /* The cursor used for this query */
+  int idxNum,                     /* Strategy index */
+  const char *idxStr,             /* Unused */
+  int nVal,                       /* Number of elements in apVal */
+  sqlite3_value **apVal           /* Arguments for the indexing scheme */
+){
+  Fts3termCursor *pCsr = (Fts3termCursor *)pCursor;
+  Fts3termTable *p = (Fts3termTable *)pCursor->pVtab;
+  Fts3Table *pFts3 = p->pFts3Tab;
+  int rc;
+
+  UNUSED_PARAMETER(nVal);
+  UNUSED_PARAMETER(idxNum);
+  UNUSED_PARAMETER(idxStr);
+  UNUSED_PARAMETER(apVal);
+
+  assert( idxStr==0 && idxNum==0 );
+
+  /* In case this cursor is being reused, close and zero it. */
+  testcase(pCsr->filter.zTerm);
+  sqlite3Fts3SegReaderFinish(&pCsr->csr);
+  memset(&pCsr->csr, 0, ((u8*)&pCsr[1]) - (u8*)&pCsr->csr);
+
+  pCsr->filter.flags = FTS3_SEGMENT_REQUIRE_POS|FTS3_SEGMENT_IGNORE_EMPTY;
+  pCsr->filter.flags |= FTS3_SEGMENT_SCAN;
+
+  rc = sqlite3Fts3SegReaderCursor(pFts3, 0, p->iIndex, FTS3_SEGCURSOR_ALL,
+      pCsr->filter.zTerm, pCsr->filter.nTerm, 0, 1, &pCsr->csr
+  );
+  if( rc==SQLITE_OK ){
+    rc = sqlite3Fts3SegReaderStart(pFts3, &pCsr->csr, &pCsr->filter);
+  }
+  if( rc==SQLITE_OK ){
+    rc = fts3termNextMethod(pCursor);
+  }
+  return rc;
+}
+
+/*
+** xEof - Return true if the cursor is at EOF, or false otherwise.
+*/
+static int fts3termEofMethod(sqlite3_vtab_cursor *pCursor){
+  Fts3termCursor *pCsr = (Fts3termCursor *)pCursor;
+  return pCsr->isEof;
+}
+
+/*
+** xColumn - Return a column value.
+*/
+static int fts3termColumnMethod(
+  sqlite3_vtab_cursor *pCursor,   /* Cursor to retrieve value from */
+  sqlite3_context *pCtx,          /* Context for sqlite3_result_xxx() calls */
+  int iCol                        /* Index of column to read value from */
+){
+  Fts3termCursor *p = (Fts3termCursor *)pCursor;
+
+  assert( iCol>=0 && iCol<=3 );
+  switch( iCol ){
+    case 0:
+      sqlite3_result_text(pCtx, p->csr.zTerm, p->csr.nTerm, SQLITE_TRANSIENT);
+      break;
+    case 1:
+      sqlite3_result_int64(pCtx, p->iDocid);
+      break;
+    case 2:
+      sqlite3_result_int64(pCtx, p->iCol);
+      break;
+    default:
+      sqlite3_result_int64(pCtx, p->iPos);
+      break;
+  }
+
+  return SQLITE_OK;
+}
+
+/*
+** xRowid - Return the current rowid for the cursor.
+*/
+static int fts3termRowidMethod(
+  sqlite3_vtab_cursor *pCursor,   /* Cursor to retrieve value from */
+  sqlite_int64 *pRowid            /* OUT: Rowid value */
+){
+  Fts3termCursor *pCsr = (Fts3termCursor *)pCursor;
+  *pRowid = pCsr->iRowid;
+  return SQLITE_OK;
+}
+
+/*
+** Register the fts3term module with database connection db. Return SQLITE_OK
+** if successful or an error code if sqlite3_create_module() fails.
+*/
+int sqlite3Fts3InitTerm(sqlite3 *db){
+  static const sqlite3_module fts3term_module = {
+     0,                           /* iVersion      */
+     fts3termConnectMethod,       /* xCreate       */
+     fts3termConnectMethod,       /* xConnect      */
+     fts3termBestIndexMethod,     /* xBestIndex    */
+     fts3termDisconnectMethod,    /* xDisconnect   */
+     fts3termDisconnectMethod,    /* xDestroy      */
+     fts3termOpenMethod,          /* xOpen         */
+     fts3termCloseMethod,         /* xClose        */
+     fts3termFilterMethod,        /* xFilter       */
+     fts3termNextMethod,          /* xNext         */
+     fts3termEofMethod,           /* xEof          */
+     fts3termColumnMethod,        /* xColumn       */
+     fts3termRowidMethod,         /* xRowid        */
+     0,                           /* xUpdate       */
+     0,                           /* xBegin        */
+     0,                           /* xSync         */
+     0,                           /* xCommit       */
+     0,                           /* xRollback     */
+     0,                           /* xFindFunction */
+     0,                           /* xRename       */
+     0,                           /* xSavepoint    */
+     0,                           /* xRelease      */
+     0,                           /* xRollbackTo   */
+     0,                           /* xShadowName   */
+     0                            /* xIntegrity    */
+  };
+  int rc;                         /* Return code */
+
+  rc = sqlite3_create_module(db, "fts4term", &fts3term_module, 0);
+  return rc;
+}
+
+#endif
+#endif /* !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3) */
diff --git a/ext/fts3/fts3_test.c b/ext/fts3/fts3_test.c
new file mode 100644
index 0000000000000000000000000000000000000000..3c42a7bf02963c8430d99eae92ad988f073c4b69
--- /dev/null
+++ b/ext/fts3/fts3_test.c
@@ -0,0 +1,620 @@
+/*
+** 2011 Jun 13
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This file is not part of the production FTS code. It is only used for
+** testing. It contains a Tcl command that can be used to test if a document
+** matches an FTS NEAR expression.
+**
+** As of March 2012, it also contains a version 1 tokenizer used for testing
+** that the sqlite3_tokenizer_module.xLanguage() method is invoked correctly.
+*/
+
+#include "tclsqlite.h"
+#include <string.h>
+#include <assert.h>
+
+#if defined(SQLITE_TEST)
+#if defined(SQLITE_ENABLE_FTS3) || defined(SQLITE_ENABLE_FTS4)
+
+/* Required so that the "ifdef SQLITE_ENABLE_FTS3" below works */
+#include "fts3Int.h"
+
+#define NM_MAX_TOKEN 12
+
+typedef struct NearPhrase NearPhrase;
+typedef struct NearDocument NearDocument;
+typedef struct NearToken NearToken;
+
+struct NearDocument {
+  int nToken;                     /* Length of token in bytes */
+  NearToken *aToken;              /* Token array */
+};
+
+struct NearToken {
+  int n;                          /* Length of token in bytes */
+  const char *z;                  /* Pointer to token string */
+};
+
+struct NearPhrase {
+  int nNear;                      /* Preceding NEAR value */
+  int nToken;                     /* Number of tokens in this phrase */
+  NearToken aToken[NM_MAX_TOKEN]; /* Array of tokens in this phrase */
+};
+
+static int nm_phrase_match(
+  NearPhrase *p,
+  NearToken *aToken
+){
+  int ii;
+
+  for(ii=0; ii<p->nToken; ii++){
+    NearToken *pToken = &p->aToken[ii];
+    if( pToken->n>0 && pToken->z[pToken->n-1]=='*' ){
+      if( aToken[ii].n<(pToken->n-1) ) return 0;
+      if( memcmp(aToken[ii].z, pToken->z, pToken->n-1) ) return 0;
+    }else{
+      if( aToken[ii].n!=pToken->n ) return 0;
+      if( memcmp(aToken[ii].z, pToken->z, pToken->n) ) return 0;
+    }
+  }
+
+  return 1;
+}
+
+static int nm_near_chain(
+  int iDir,                       /* Direction to iterate through aPhrase[] */
+  NearDocument *pDoc,             /* Document to match against */
+  int iPos,                       /* Position at which iPhrase was found */
+  int nPhrase,                    /* Size of phrase array */
+  NearPhrase *aPhrase,            /* Phrase array */
+  int iPhrase                     /* Index of phrase found */
+){
+  int iStart;
+  int iStop;
+  int ii;
+  int nNear;
+  int iPhrase2;
+  NearPhrase *p;
+  NearPhrase *pPrev;
+
+  assert( iDir==1 || iDir==-1 );
+
+  if( iDir==1 ){
+    if( (iPhrase+1)==nPhrase ) return 1;
+    nNear = aPhrase[iPhrase+1].nNear;
+  }else{
+    if( iPhrase==0 ) return 1;
+    nNear = aPhrase[iPhrase].nNear;
+  }
+  pPrev = &aPhrase[iPhrase];
+  iPhrase2 = iPhrase+iDir;
+  p = &aPhrase[iPhrase2];
+
+  iStart = iPos - nNear - p->nToken;
+  iStop = iPos + nNear + pPrev->nToken;
+
+  if( iStart<0 ) iStart = 0;
+  if( iStop > pDoc->nToken - p->nToken ) iStop = pDoc->nToken - p->nToken;
+
+  for(ii=iStart; ii<=iStop; ii++){
+    if( nm_phrase_match(p, &pDoc->aToken[ii]) ){
+      if( nm_near_chain(iDir, pDoc, ii, nPhrase, aPhrase, iPhrase2) ) return 1;
+    }
+  }
+
+  return 0;
+}
+
+static int nm_match_count(
+  NearDocument *pDoc,             /* Document to match against */
+  int nPhrase,                    /* Size of phrase array */
+  NearPhrase *aPhrase,            /* Phrase array */
+  int iPhrase                     /* Index of phrase to count matches for */
+){
+  int nOcc = 0;
+  int ii;
+  NearPhrase *p = &aPhrase[iPhrase];
+
+  for(ii=0; ii<(pDoc->nToken + 1 - p->nToken); ii++){
+    if( nm_phrase_match(p, &pDoc->aToken[ii]) ){
+      /* Test forward NEAR chain (i>iPhrase) */
+      if( 0==nm_near_chain(1, pDoc, ii, nPhrase, aPhrase, iPhrase) ) continue;
+
+      /* Test reverse NEAR chain (i<iPhrase) */
+      if( 0==nm_near_chain(-1, pDoc, ii, nPhrase, aPhrase, iPhrase) ) continue;
+
+      /* This is a real match. Increment the counter. */
+      nOcc++;
+    }
+  } 
+
+  return nOcc;
+}
+
+/*
+** Tclcmd: fts3_near_match DOCUMENT EXPR ?OPTIONS?
+*/
+static int SQLITE_TCLAPI fts3_near_match_cmd(
+  ClientData clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  int nTotal = 0;
+  int rc;
+  int ii;
+  int nPhrase;
+  NearPhrase *aPhrase = 0;
+  NearDocument doc = {0, 0};
+  Tcl_Obj **apDocToken;
+  Tcl_Obj *pRet;
+  Tcl_Obj *pPhrasecount = 0;
+  
+  Tcl_Obj **apExprToken;
+  Tcl_Size nExprToken;
+  Tcl_Size nn;
+
+  UNUSED_PARAMETER(clientData);
+
+  /* Must have 3 or more arguments. */
+  if( objc<3 || (objc%2)==0 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "DOCUMENT EXPR ?OPTION VALUE?...");
+    rc = TCL_ERROR;
+    goto near_match_out;
+  }
+
+  for(ii=3; ii<objc; ii+=2){
+    enum NM_enum { NM_PHRASECOUNTS };
+    struct TestnmSubcmd {
+      char *zName;
+      enum NM_enum eOpt;
+    } aOpt[] = {
+      { "-phrasecountvar", NM_PHRASECOUNTS },
+      { 0, 0 }
+    };
+    int iOpt;
+    if( Tcl_GetIndexFromObjStruct(
+        interp, objv[ii], aOpt, sizeof(aOpt[0]), "option", 0, &iOpt) 
+    ){
+      return TCL_ERROR;
+    }
+
+    switch( aOpt[iOpt].eOpt ){
+      case NM_PHRASECOUNTS:
+        pPhrasecount = objv[ii+1];
+        break;
+    }
+  }
+
+  rc = Tcl_ListObjGetElements(interp, objv[1], &nn, &apDocToken);
+  doc.nToken = (int)nn;
+  if( rc!=TCL_OK ) goto near_match_out;
+  doc.aToken = (NearToken *)ckalloc(doc.nToken*sizeof(NearToken));
+  for(ii=0; ii<doc.nToken; ii++){
+    doc.aToken[ii].z = Tcl_GetStringFromObj(apDocToken[ii], &nn);
+    doc.aToken[ii].n = (int)nn;
+  }
+
+  rc = Tcl_ListObjGetElements(interp, objv[2], &nExprToken, &apExprToken);
+  if( rc!=TCL_OK ) goto near_match_out;
+
+  nPhrase = (int)(nExprToken + 1) / 2;
+  aPhrase = (NearPhrase *)ckalloc(nPhrase * sizeof(NearPhrase));
+  memset(aPhrase, 0, nPhrase * sizeof(NearPhrase));
+  for(ii=0; ii<nPhrase; ii++){
+    Tcl_Obj *pPhrase = apExprToken[ii*2];
+    Tcl_Obj **apToken;
+    Tcl_Size nToken;
+    int jj;
+
+    rc = Tcl_ListObjGetElements(interp, pPhrase, &nToken, &apToken);
+    if( rc!=TCL_OK ) goto near_match_out;
+    if( nToken>NM_MAX_TOKEN ){
+      Tcl_AppendResult(interp, "Too many tokens in phrase", 0);
+      rc = TCL_ERROR;
+      goto near_match_out;
+    }
+    for(jj=0; jj<(int)nToken; jj++){
+      NearToken *pT = &aPhrase[ii].aToken[jj];
+      pT->z = Tcl_GetStringFromObj(apToken[jj], &nn);
+      pT->n = (int)nn;
+    }
+    aPhrase[ii].nToken = (int)nToken;
+  }
+  for(ii=1; ii<nPhrase; ii++){
+    Tcl_Obj *pNear = apExprToken[2*ii-1];
+    int nNear;
+    rc = Tcl_GetIntFromObj(interp, pNear, &nNear);
+    if( rc!=TCL_OK ) goto near_match_out;
+    aPhrase[ii].nNear = nNear;
+  }
+
+  pRet = Tcl_NewObj();
+  Tcl_IncrRefCount(pRet);
+  for(ii=0; ii<nPhrase; ii++){
+    int nOcc = nm_match_count(&doc, nPhrase, aPhrase, ii);
+    Tcl_ListObjAppendElement(interp, pRet, Tcl_NewIntObj(nOcc));
+    nTotal += nOcc;
+  }
+  if( pPhrasecount ){
+    Tcl_ObjSetVar2(interp, pPhrasecount, 0, pRet, 0);
+  }
+  Tcl_DecrRefCount(pRet);
+  Tcl_SetObjResult(interp, Tcl_NewBooleanObj(nTotal>0));
+
+ near_match_out: 
+  ckfree((char *)aPhrase);
+  ckfree((char *)doc.aToken);
+  return rc;
+}
+
+/*
+**   Tclcmd: fts3_configure_incr_load ?CHUNKSIZE THRESHOLD?
+**
+** Normally, FTS uses hard-coded values to determine the minimum doclist
+** size eligible for incremental loading, and the size of the chunks loaded
+** when a doclist is incrementally loaded. This command allows the built-in
+** values to be overridden for testing purposes.
+**
+** If present, the first argument is the chunksize in bytes to load doclists
+** in. The second argument is the minimum doclist size in bytes to use
+** incremental loading with.
+**
+** Whether or not the arguments are present, this command returns a list of
+** two integers - the initial chunksize and threshold when the command is
+** invoked. This can be used to restore the default behavior after running
+** tests. For example:
+**
+**    # Override incr-load settings for testing:
+**    set cfg [fts3_configure_incr_load $new_chunksize $new_threshold]
+**
+**    .... run tests ....
+**
+**    # Restore initial incr-load settings:
+**    eval fts3_configure_incr_load $cfg
+*/
+static int SQLITE_TCLAPI fts3_configure_incr_load_cmd(
+  ClientData clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+#ifdef SQLITE_ENABLE_FTS3
+  extern int test_fts3_node_chunksize;
+  extern int test_fts3_node_chunk_threshold;
+  Tcl_Obj *pRet;
+
+  if( objc!=1 && objc!=3 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "?CHUNKSIZE THRESHOLD?");
+    return TCL_ERROR;
+  }
+
+  pRet = Tcl_NewObj();
+  Tcl_IncrRefCount(pRet);
+  Tcl_ListObjAppendElement(
+      interp, pRet, Tcl_NewIntObj(test_fts3_node_chunksize));
+  Tcl_ListObjAppendElement(
+      interp, pRet, Tcl_NewIntObj(test_fts3_node_chunk_threshold));
+
+  if( objc==3 ){
+    int iArg1;
+    int iArg2;
+    if( Tcl_GetIntFromObj(interp, objv[1], &iArg1)
+     || Tcl_GetIntFromObj(interp, objv[2], &iArg2)
+    ){
+      Tcl_DecrRefCount(pRet);
+      return TCL_ERROR;
+    }
+    test_fts3_node_chunksize = iArg1;
+    test_fts3_node_chunk_threshold = iArg2;
+  }
+
+  Tcl_SetObjResult(interp, pRet);
+  Tcl_DecrRefCount(pRet);
+#endif
+  UNUSED_PARAMETER(clientData);
+  return TCL_OK;
+}
+
+#ifdef SQLITE_ENABLE_FTS3
+/**************************************************************************
+** Beginning of test tokenizer code.
+**
+** For language 0, this tokenizer is similar to the default 'simple' 
+** tokenizer. For other languages L, the following:
+**
+**   * Odd numbered languages are case-sensitive. Even numbered 
+**     languages are not.
+**
+**   * Language ids 100 or greater are considered an error.
+**
+** The implementation assumes that the input contains only ASCII characters
+** (i.e. those that may be encoded in UTF-8 using a single byte).
+*/
+typedef struct test_tokenizer {
+  sqlite3_tokenizer base;
+} test_tokenizer;
+
+typedef struct test_tokenizer_cursor {
+  sqlite3_tokenizer_cursor base;
+  const char *aInput;          /* Input being tokenized */
+  int nInput;                  /* Size of the input in bytes */
+  int iInput;                  /* Current offset in aInput */
+  int iToken;                  /* Index of next token to be returned */
+  char *aBuffer;               /* Buffer containing current token */
+  int nBuffer;                 /* Number of bytes allocated at pToken */
+  int iLangid;                 /* Configured language id */
+} test_tokenizer_cursor;
+
+static int testTokenizerCreate(
+  int argc, const char * const *argv,
+  sqlite3_tokenizer **ppTokenizer
+){
+  test_tokenizer *pNew;
+  UNUSED_PARAMETER(argc);
+  UNUSED_PARAMETER(argv);
+
+  pNew = sqlite3_malloc(sizeof(test_tokenizer));
+  if( !pNew ) return SQLITE_NOMEM;
+  memset(pNew, 0, sizeof(test_tokenizer));
+
+  *ppTokenizer = (sqlite3_tokenizer *)pNew;
+  return SQLITE_OK;
+}
+
+static int testTokenizerDestroy(sqlite3_tokenizer *pTokenizer){
+  test_tokenizer *p = (test_tokenizer *)pTokenizer;
+  sqlite3_free(p);
+  return SQLITE_OK;
+}
+
+static int testTokenizerOpen(
+  sqlite3_tokenizer *pTokenizer,         /* The tokenizer */
+  const char *pInput, int nBytes,        /* String to be tokenized */
+  sqlite3_tokenizer_cursor **ppCursor    /* OUT: Tokenization cursor */
+){
+  int rc = SQLITE_OK;                    /* Return code */
+  test_tokenizer_cursor *pCsr;           /* New cursor object */
+
+  UNUSED_PARAMETER(pTokenizer);
+
+  pCsr = (test_tokenizer_cursor *)sqlite3_malloc(sizeof(test_tokenizer_cursor));
+  if( pCsr==0 ){
+    rc = SQLITE_NOMEM;
+  }else{
+    memset(pCsr, 0, sizeof(test_tokenizer_cursor));
+    pCsr->aInput = pInput;
+    if( nBytes<0 ){
+      pCsr->nInput = (int)strlen(pInput);
+    }else{
+      pCsr->nInput = nBytes;
+    }
+  }
+
+  *ppCursor = (sqlite3_tokenizer_cursor *)pCsr;
+  return rc;
+}
+
+static int testTokenizerClose(sqlite3_tokenizer_cursor *pCursor){
+  test_tokenizer_cursor *pCsr = (test_tokenizer_cursor *)pCursor;
+  sqlite3_free(pCsr->aBuffer);
+  sqlite3_free(pCsr);
+  return SQLITE_OK;
+}
+
+static int testIsTokenChar(char c){
+  return (c>='a' && c<='z') || (c>='A' && c<='Z');
+}
+static int testTolower(char c){
+  char ret = c;
+  if( ret>='A' && ret<='Z') ret = ret - ('A'-'a');
+  return ret;
+}
+
+static int testTokenizerNext(
+  sqlite3_tokenizer_cursor *pCursor,  /* Cursor returned by testTokenizerOpen */
+  const char **ppToken,               /* OUT: *ppToken is the token text */
+  int *pnBytes,                       /* OUT: Number of bytes in token */
+  int *piStartOffset,                 /* OUT: Starting offset of token */
+  int *piEndOffset,                   /* OUT: Ending offset of token */
+  int *piPosition                     /* OUT: Position integer of token */
+){
+  test_tokenizer_cursor *pCsr = (test_tokenizer_cursor *)pCursor;
+  int rc = SQLITE_OK;
+  const char *p;
+  const char *pEnd;
+
+  p = &pCsr->aInput[pCsr->iInput];
+  pEnd = &pCsr->aInput[pCsr->nInput];
+
+  /* Skip past any white-space */
+  assert( p<=pEnd );
+  while( p<pEnd && testIsTokenChar(*p)==0 ) p++;
+
+  if( p==pEnd ){
+    rc = SQLITE_DONE;
+  }else{
+    /* Advance to the end of the token */
+    const char *pToken = p;
+    sqlite3_int64 nToken;
+    while( p<pEnd && testIsTokenChar(*p) ) p++;
+    nToken = (sqlite3_int64)(p-pToken);
+
+    /* Copy the token into the buffer */
+    if( nToken>pCsr->nBuffer ){
+      sqlite3_free(pCsr->aBuffer);
+      pCsr->aBuffer = sqlite3_malloc64(nToken);
+    }
+    if( pCsr->aBuffer==0 ){
+      rc = SQLITE_NOMEM;
+    }else{
+      int i;
+
+      if( pCsr->iLangid & 0x00000001 ){
+        for(i=0; i<nToken; i++) pCsr->aBuffer[i] = pToken[i];
+      }else{
+        for(i=0; i<nToken; i++) pCsr->aBuffer[i] = (char)testTolower(pToken[i]);
+      }
+      pCsr->iToken++;
+      pCsr->iInput = (int)(p - pCsr->aInput);
+
+      *ppToken = pCsr->aBuffer;
+      *pnBytes = (int)nToken;
+      *piStartOffset = (int)(pToken - pCsr->aInput);
+      *piEndOffset = (int)(p - pCsr->aInput);
+      *piPosition = pCsr->iToken;
+    }
+  }
+
+  return rc;
+}
+
+static int testTokenizerLanguage(
+  sqlite3_tokenizer_cursor *pCursor,
+  int iLangid
+){
+  int rc = SQLITE_OK;
+  test_tokenizer_cursor *pCsr = (test_tokenizer_cursor *)pCursor;
+  pCsr->iLangid = iLangid;
+  if( pCsr->iLangid>=100 ){
+    rc = SQLITE_ERROR;
+  }
+  return rc;
+}
+#endif
+
+static int SQLITE_TCLAPI fts3_test_tokenizer_cmd(
+  ClientData clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+#ifdef SQLITE_ENABLE_FTS3
+  static const sqlite3_tokenizer_module testTokenizerModule = {
+    1,
+    testTokenizerCreate,
+    testTokenizerDestroy,
+    testTokenizerOpen,
+    testTokenizerClose,
+    testTokenizerNext,
+    testTokenizerLanguage
+  };
+  const sqlite3_tokenizer_module *pPtr = &testTokenizerModule;
+  if( objc!=1 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "");
+    return TCL_ERROR;
+  }
+  Tcl_SetObjResult(interp, Tcl_NewByteArrayObj(
+    (const unsigned char *)&pPtr, sizeof(sqlite3_tokenizer_module *)
+  ));
+#endif
+  UNUSED_PARAMETER(clientData);
+  return TCL_OK;
+}
+
+static int SQLITE_TCLAPI fts3_test_varint_cmd(
+  ClientData clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+#ifdef SQLITE_ENABLE_FTS3
+  char aBuf[24];
+  int rc;
+  Tcl_WideInt w;
+  sqlite3_int64 w2;
+  int nByte, nByte2;
+
+  if( objc!=2 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "INTEGER");
+    return TCL_ERROR;
+  }
+
+  rc = Tcl_GetWideIntFromObj(interp, objv[1], &w);
+  if( rc!=TCL_OK ) return rc;
+
+  nByte = sqlite3Fts3PutVarint(aBuf, w);
+  nByte2 = sqlite3Fts3GetVarint(aBuf, &w2);
+  if( w!=w2 || nByte!=nByte2 ){
+    char *zErr = sqlite3_mprintf("error testing %lld", w);
+    Tcl_ResetResult(interp);
+    Tcl_AppendResult(interp, zErr, 0);
+    return TCL_ERROR;
+  }
+
+  if( w<=2147483647 && w>=0 ){
+    int i;
+    nByte2 = fts3GetVarint32(aBuf, &i);
+    if( (int)w!=i || nByte!=nByte2 ){
+      char *zErr = sqlite3_mprintf("error testing %lld (32-bit)", w);
+      Tcl_ResetResult(interp);
+      Tcl_AppendResult(interp, zErr, 0);
+      return TCL_ERROR;
+    }
+  }
+
+#endif
+  UNUSED_PARAMETER(clientData);
+  return TCL_OK;
+}
+
+/* 
+** End of tokenizer code.
+**************************************************************************/ 
+
+/*
+**      sqlite3_fts3_may_be_corrupt BOOLEAN
+**
+** Set or clear the global "may-be-corrupt" flag. Return the old value.
+*/
+static int SQLITE_TCLAPI fts3_may_be_corrupt(
+  void * clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+#ifdef SQLITE_DEBUG
+  int bOld = sqlite3_fts3_may_be_corrupt;
+
+  if( objc!=2 && objc!=1 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "?BOOLEAN?");
+    return TCL_ERROR;
+  }
+  if( objc==2 ){
+    int bNew;
+    if( Tcl_GetBooleanFromObj(interp, objv[1], &bNew) ) return TCL_ERROR;
+    sqlite3_fts3_may_be_corrupt = bNew;
+  }
+
+  Tcl_SetObjResult(interp, Tcl_NewIntObj(bOld));
+#endif
+  return TCL_OK;
+}
+
+int Sqlitetestfts3_Init(Tcl_Interp *interp){
+  Tcl_CreateObjCommand(interp, "fts3_near_match", fts3_near_match_cmd, 0, 0);
+  Tcl_CreateObjCommand(interp, 
+      "fts3_configure_incr_load", fts3_configure_incr_load_cmd, 0, 0
+  );
+  Tcl_CreateObjCommand(
+      interp, "fts3_test_tokenizer", fts3_test_tokenizer_cmd, 0, 0
+  );
+  Tcl_CreateObjCommand(
+      interp, "fts3_test_varint", fts3_test_varint_cmd, 0, 0
+  );
+  Tcl_CreateObjCommand(
+      interp, "sqlite3_fts3_may_be_corrupt", fts3_may_be_corrupt, 0, 0
+  );
+  return TCL_OK;
+}
+#endif                  /* SQLITE_ENABLE_FTS3 || SQLITE_ENABLE_FTS4 */
+#endif                  /* ifdef SQLITE_TEST */
diff --git a/ext/fts3/fts3_tokenize_vtab.c b/ext/fts3/fts3_tokenize_vtab.c
new file mode 100644
index 0000000000000000000000000000000000000000..7e8d09bd4834e73cb13f8bdf808b1d55b98ee808
--- /dev/null
+++ b/ext/fts3/fts3_tokenize_vtab.c
@@ -0,0 +1,459 @@
+/*
+** 2013 Apr 22
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This file contains code for the "fts3tokenize" virtual table module.
+** An fts3tokenize virtual table is created as follows:
+**
+**   CREATE VIRTUAL TABLE <tbl> USING fts3tokenize(
+**       <tokenizer-name>, <arg-1>, ...
+**   );
+**
+** The table created has the following schema:
+**
+**   CREATE TABLE <tbl>(input, token, start, end, position)
+**
+** When queried, the query must include a WHERE clause of type:
+**
+**   input = <string>
+**
+** The virtual table module tokenizes this <string>, using the FTS3 
+** tokenizer specified by the arguments to the CREATE VIRTUAL TABLE 
+** statement and returns one row for each token in the result. With
+** fields set as follows:
+**
+**   input:   Always set to a copy of <string>
+**   token:   A token from the input.
+**   start:   Byte offset of the token within the input <string>.
+**   end:     Byte offset of the byte immediately following the end of the
+**            token within the input string.
+**   pos:     Token offset of token within input.
+**
+*/
+#include "fts3Int.h"
+#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3)
+
+#include <string.h>
+#include <assert.h>
+
+typedef struct Fts3tokTable Fts3tokTable;
+typedef struct Fts3tokCursor Fts3tokCursor;
+
+/*
+** Virtual table structure.
+*/
+struct Fts3tokTable {
+  sqlite3_vtab base;              /* Base class used by SQLite core */
+  const sqlite3_tokenizer_module *pMod;
+  sqlite3_tokenizer *pTok;
+};
+
+/*
+** Virtual table cursor structure.
+*/
+struct Fts3tokCursor {
+  sqlite3_vtab_cursor base;       /* Base class used by SQLite core */
+  char *zInput;                   /* Input string */
+  sqlite3_tokenizer_cursor *pCsr; /* Cursor to iterate through zInput */
+  int iRowid;                     /* Current 'rowid' value */
+  const char *zToken;             /* Current 'token' value */
+  int nToken;                     /* Size of zToken in bytes */
+  int iStart;                     /* Current 'start' value */
+  int iEnd;                       /* Current 'end' value */
+  int iPos;                       /* Current 'pos' value */
+};
+
+/*
+** Query FTS for the tokenizer implementation named zName.
+*/
+static int fts3tokQueryTokenizer(
+  Fts3Hash *pHash,
+  const char *zName,
+  const sqlite3_tokenizer_module **pp,
+  char **pzErr
+){
+  sqlite3_tokenizer_module *p;
+  int nName = (int)strlen(zName);
+
+  p = (sqlite3_tokenizer_module *)sqlite3Fts3HashFind(pHash, zName, nName+1);
+  if( !p ){
+    sqlite3Fts3ErrMsg(pzErr, "unknown tokenizer: %s", zName);
+    return SQLITE_ERROR;
+  }
+
+  *pp = p;
+  return SQLITE_OK;
+}
+
+/*
+** The second argument, argv[], is an array of pointers to nul-terminated
+** strings. This function makes a copy of the array and strings into a 
+** single block of memory. It then dequotes any of the strings that appear
+** to be quoted.
+**
+** If successful, output parameter *pazDequote is set to point at the
+** array of dequoted strings and SQLITE_OK is returned. The caller is
+** responsible for eventually calling sqlite3_free() to free the array
+** in this case. Or, if an error occurs, an SQLite error code is returned.
+** The final value of *pazDequote is undefined in this case.
+*/
+static int fts3tokDequoteArray(
+  int argc,                       /* Number of elements in argv[] */
+  const char * const *argv,       /* Input array */
+  char ***pazDequote              /* Output array */
+){
+  int rc = SQLITE_OK;             /* Return code */
+  if( argc==0 ){
+    *pazDequote = 0;
+  }else{
+    int i;
+    int nByte = 0;
+    char **azDequote;
+
+    for(i=0; i<argc; i++){
+      nByte += (int)(strlen(argv[i]) + 1);
+    }
+
+    *pazDequote = azDequote = sqlite3_malloc64(sizeof(char *)*argc + nByte);
+    if( azDequote==0 ){
+      rc = SQLITE_NOMEM;
+    }else{
+      char *pSpace = (char *)&azDequote[argc];
+      for(i=0; i<argc; i++){
+        int n = (int)strlen(argv[i]);
+        azDequote[i] = pSpace;
+        memcpy(pSpace, argv[i], n+1);
+        sqlite3Fts3Dequote(pSpace);
+        pSpace += (n+1);
+      }
+    }
+  }
+
+  return rc;
+}
+
+/*
+** Schema of the tokenizer table.
+*/
+#define FTS3_TOK_SCHEMA "CREATE TABLE x(input, token, start, end, position)"
+
+/*
+** This function does all the work for both the xConnect and xCreate methods.
+** These tables have no persistent representation of their own, so xConnect
+** and xCreate are identical operations.
+**
+**   argv[0]: module name
+**   argv[1]: database name 
+**   argv[2]: table name
+**   argv[3]: first argument (tokenizer name)
+*/
+static int fts3tokConnectMethod(
+  sqlite3 *db,                    /* Database connection */
+  void *pHash,                    /* Hash table of tokenizers */
+  int argc,                       /* Number of elements in argv array */
+  const char * const *argv,       /* xCreate/xConnect argument array */
+  sqlite3_vtab **ppVtab,          /* OUT: New sqlite3_vtab object */
+  char **pzErr                    /* OUT: sqlite3_malloc'd error message */
+){
+  Fts3tokTable *pTab = 0;
+  const sqlite3_tokenizer_module *pMod = 0;
+  sqlite3_tokenizer *pTok = 0;
+  int rc;
+  char **azDequote = 0;
+  int nDequote;
+
+  rc = sqlite3_declare_vtab(db, FTS3_TOK_SCHEMA);
+  if( rc!=SQLITE_OK ) return rc;
+
+  nDequote = argc-3;
+  rc = fts3tokDequoteArray(nDequote, &argv[3], &azDequote);
+
+  if( rc==SQLITE_OK ){
+    const char *zModule;
+    if( nDequote<1 ){
+      zModule = "simple";
+    }else{
+      zModule = azDequote[0];
+    }
+    rc = fts3tokQueryTokenizer((Fts3Hash*)pHash, zModule, &pMod, pzErr);
+  }
+
+  assert( (rc==SQLITE_OK)==(pMod!=0) );
+  if( rc==SQLITE_OK ){
+    const char * const *azArg = 0;
+    if( nDequote>1 ) azArg = (const char * const *)&azDequote[1];
+    rc = pMod->xCreate((nDequote>1 ? nDequote-1 : 0), azArg, &pTok);
+  }
+
+  if( rc==SQLITE_OK ){
+    pTab = (Fts3tokTable *)sqlite3_malloc(sizeof(Fts3tokTable));
+    if( pTab==0 ){
+      rc = SQLITE_NOMEM;
+    }
+  }
+
+  if( rc==SQLITE_OK ){
+    memset(pTab, 0, sizeof(Fts3tokTable));
+    pTab->pMod = pMod;
+    pTab->pTok = pTok;
+    *ppVtab = &pTab->base;
+  }else{
+    if( pTok ){
+      pMod->xDestroy(pTok);
+    }
+  }
+
+  sqlite3_free(azDequote);
+  return rc;
+}
+
+/*
+** This function does the work for both the xDisconnect and xDestroy methods.
+** These tables have no persistent representation of their own, so xDisconnect
+** and xDestroy are identical operations.
+*/
+static int fts3tokDisconnectMethod(sqlite3_vtab *pVtab){
+  Fts3tokTable *pTab = (Fts3tokTable *)pVtab;
+
+  pTab->pMod->xDestroy(pTab->pTok);
+  sqlite3_free(pTab);
+  return SQLITE_OK;
+}
+
+/*
+** xBestIndex - Analyze a WHERE and ORDER BY clause.
+*/
+static int fts3tokBestIndexMethod(
+  sqlite3_vtab *pVTab, 
+  sqlite3_index_info *pInfo
+){
+  int i;
+  UNUSED_PARAMETER(pVTab);
+
+  for(i=0; i<pInfo->nConstraint; i++){
+    if( pInfo->aConstraint[i].usable 
+     && pInfo->aConstraint[i].iColumn==0 
+     && pInfo->aConstraint[i].op==SQLITE_INDEX_CONSTRAINT_EQ 
+    ){
+      pInfo->idxNum = 1;
+      pInfo->aConstraintUsage[i].argvIndex = 1;
+      pInfo->aConstraintUsage[i].omit = 1;
+      pInfo->estimatedCost = 1;
+      return SQLITE_OK;
+    }
+  }
+
+  pInfo->idxNum = 0;
+  assert( pInfo->estimatedCost>1000000.0 );
+
+  return SQLITE_OK;
+}
+
+/*
+** xOpen - Open a cursor.
+*/
+static int fts3tokOpenMethod(sqlite3_vtab *pVTab, sqlite3_vtab_cursor **ppCsr){
+  Fts3tokCursor *pCsr;
+  UNUSED_PARAMETER(pVTab);
+
+  pCsr = (Fts3tokCursor *)sqlite3_malloc(sizeof(Fts3tokCursor));
+  if( pCsr==0 ){
+    return SQLITE_NOMEM;
+  }
+  memset(pCsr, 0, sizeof(Fts3tokCursor));
+
+  *ppCsr = (sqlite3_vtab_cursor *)pCsr;
+  return SQLITE_OK;
+}
+
+/*
+** Reset the tokenizer cursor passed as the only argument. As if it had
+** just been returned by fts3tokOpenMethod().
+*/
+static void fts3tokResetCursor(Fts3tokCursor *pCsr){
+  if( pCsr->pCsr ){
+    Fts3tokTable *pTab = (Fts3tokTable *)(pCsr->base.pVtab);
+    pTab->pMod->xClose(pCsr->pCsr);
+    pCsr->pCsr = 0;
+  }
+  sqlite3_free(pCsr->zInput);
+  pCsr->zInput = 0;
+  pCsr->zToken = 0;
+  pCsr->nToken = 0;
+  pCsr->iStart = 0;
+  pCsr->iEnd = 0;
+  pCsr->iPos = 0;
+  pCsr->iRowid = 0;
+}
+
+/*
+** xClose - Close a cursor.
+*/
+static int fts3tokCloseMethod(sqlite3_vtab_cursor *pCursor){
+  Fts3tokCursor *pCsr = (Fts3tokCursor *)pCursor;
+
+  fts3tokResetCursor(pCsr);
+  sqlite3_free(pCsr);
+  return SQLITE_OK;
+}
+
+/*
+** xNext - Advance the cursor to the next row, if any.
+*/
+static int fts3tokNextMethod(sqlite3_vtab_cursor *pCursor){
+  Fts3tokCursor *pCsr = (Fts3tokCursor *)pCursor;
+  Fts3tokTable *pTab = (Fts3tokTable *)(pCursor->pVtab);
+  int rc;                         /* Return code */
+
+  pCsr->iRowid++;
+  rc = pTab->pMod->xNext(pCsr->pCsr,
+      &pCsr->zToken, &pCsr->nToken,
+      &pCsr->iStart, &pCsr->iEnd, &pCsr->iPos
+  );
+
+  if( rc!=SQLITE_OK ){
+    fts3tokResetCursor(pCsr);
+    if( rc==SQLITE_DONE ) rc = SQLITE_OK;
+  }
+
+  return rc;
+}
+
+/*
+** xFilter - Initialize a cursor to point at the start of its data.
+*/
+static int fts3tokFilterMethod(
+  sqlite3_vtab_cursor *pCursor,   /* The cursor used for this query */
+  int idxNum,                     /* Strategy index */
+  const char *idxStr,             /* Unused */
+  int nVal,                       /* Number of elements in apVal */
+  sqlite3_value **apVal           /* Arguments for the indexing scheme */
+){
+  int rc = SQLITE_ERROR;
+  Fts3tokCursor *pCsr = (Fts3tokCursor *)pCursor;
+  Fts3tokTable *pTab = (Fts3tokTable *)(pCursor->pVtab);
+  UNUSED_PARAMETER(idxStr);
+  UNUSED_PARAMETER(nVal);
+
+  fts3tokResetCursor(pCsr);
+  if( idxNum==1 ){
+    const char *zByte = (const char *)sqlite3_value_text(apVal[0]);
+    int nByte = sqlite3_value_bytes(apVal[0]);
+    pCsr->zInput = sqlite3_malloc64(nByte+1);
+    if( pCsr->zInput==0 ){
+      rc = SQLITE_NOMEM;
+    }else{
+      if( nByte>0 ) memcpy(pCsr->zInput, zByte, nByte);
+      pCsr->zInput[nByte] = 0;
+      rc = pTab->pMod->xOpen(pTab->pTok, pCsr->zInput, nByte, &pCsr->pCsr);
+      if( rc==SQLITE_OK ){
+        pCsr->pCsr->pTokenizer = pTab->pTok;
+      }
+    }
+  }
+
+  if( rc!=SQLITE_OK ) return rc;
+  return fts3tokNextMethod(pCursor);
+}
+
+/*
+** xEof - Return true if the cursor is at EOF, or false otherwise.
+*/
+static int fts3tokEofMethod(sqlite3_vtab_cursor *pCursor){
+  Fts3tokCursor *pCsr = (Fts3tokCursor *)pCursor;
+  return (pCsr->zToken==0);
+}
+
+/*
+** xColumn - Return a column value.
+*/
+static int fts3tokColumnMethod(
+  sqlite3_vtab_cursor *pCursor,   /* Cursor to retrieve value from */
+  sqlite3_context *pCtx,          /* Context for sqlite3_result_xxx() calls */
+  int iCol                        /* Index of column to read value from */
+){
+  Fts3tokCursor *pCsr = (Fts3tokCursor *)pCursor;
+
+  /* CREATE TABLE x(input, token, start, end, position) */
+  switch( iCol ){
+    case 0:
+      sqlite3_result_text(pCtx, pCsr->zInput, -1, SQLITE_TRANSIENT);
+      break;
+    case 1:
+      sqlite3_result_text(pCtx, pCsr->zToken, pCsr->nToken, SQLITE_TRANSIENT);
+      break;
+    case 2:
+      sqlite3_result_int(pCtx, pCsr->iStart);
+      break;
+    case 3:
+      sqlite3_result_int(pCtx, pCsr->iEnd);
+      break;
+    default:
+      assert( iCol==4 );
+      sqlite3_result_int(pCtx, pCsr->iPos);
+      break;
+  }
+  return SQLITE_OK;
+}
+
+/*
+** xRowid - Return the current rowid for the cursor.
+*/
+static int fts3tokRowidMethod(
+  sqlite3_vtab_cursor *pCursor,   /* Cursor to retrieve value from */
+  sqlite_int64 *pRowid            /* OUT: Rowid value */
+){
+  Fts3tokCursor *pCsr = (Fts3tokCursor *)pCursor;
+  *pRowid = (sqlite3_int64)pCsr->iRowid;
+  return SQLITE_OK;
+}
+
+/*
+** Register the fts3tok module with database connection db. Return SQLITE_OK
+** if successful or an error code if sqlite3_create_module() fails.
+*/
+int sqlite3Fts3InitTok(sqlite3 *db, Fts3Hash *pHash, void(*xDestroy)(void*)){
+  static const sqlite3_module fts3tok_module = {
+     0,                           /* iVersion      */
+     fts3tokConnectMethod,        /* xCreate       */
+     fts3tokConnectMethod,        /* xConnect      */
+     fts3tokBestIndexMethod,      /* xBestIndex    */
+     fts3tokDisconnectMethod,     /* xDisconnect   */
+     fts3tokDisconnectMethod,     /* xDestroy      */
+     fts3tokOpenMethod,           /* xOpen         */
+     fts3tokCloseMethod,          /* xClose        */
+     fts3tokFilterMethod,         /* xFilter       */
+     fts3tokNextMethod,           /* xNext         */
+     fts3tokEofMethod,            /* xEof          */
+     fts3tokColumnMethod,         /* xColumn       */
+     fts3tokRowidMethod,          /* xRowid        */
+     0,                           /* xUpdate       */
+     0,                           /* xBegin        */
+     0,                           /* xSync         */
+     0,                           /* xCommit       */
+     0,                           /* xRollback     */
+     0,                           /* xFindFunction */
+     0,                           /* xRename       */
+     0,                           /* xSavepoint    */
+     0,                           /* xRelease      */
+     0,                           /* xRollbackTo   */
+     0,                           /* xShadowName   */
+     0                            /* xIntegrity    */
+  };
+  int rc;                         /* Return code */
+
+  rc = sqlite3_create_module_v2(
+      db, "fts3tokenize", &fts3tok_module, (void*)pHash, xDestroy
+  );
+  return rc;
+}
+
+#endif /* !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3) */
diff --git a/ext/fts3/fts3_tokenizer.c b/ext/fts3/fts3_tokenizer.c
new file mode 100644
index 0000000000000000000000000000000000000000..24c237a89d5a79142fb6cf12d00bc7260d0a28c7
--- /dev/null
+++ b/ext/fts3/fts3_tokenizer.c
@@ -0,0 +1,516 @@
+/*
+** 2007 June 22
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This is part of an SQLite module implementing full-text search.
+** This particular file implements the generic tokenizer interface.
+*/
+
+/*
+** The code in this file is only compiled if:
+**
+**     * The FTS3 module is being built as an extension
+**       (in which case SQLITE_CORE is not defined), or
+**
+**     * The FTS3 module is being built into the core of
+**       SQLite (in which case SQLITE_ENABLE_FTS3 is defined).
+*/
+#include "fts3Int.h"
+#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3)
+
+#include <assert.h>
+#include <string.h>
+
+/*
+** Return true if the two-argument version of fts3_tokenizer()
+** has been activated via a prior call to sqlite3_db_config(db,
+** SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER, 1, 0);
+*/
+static int fts3TokenizerEnabled(sqlite3_context *context){
+  sqlite3 *db = sqlite3_context_db_handle(context);
+  int isEnabled = 0;
+  sqlite3_db_config(db,SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER,-1,&isEnabled);
+  return isEnabled;
+}
+
+/*
+** Implementation of the SQL scalar function for accessing the underlying 
+** hash table. This function may be called as follows:
+**
+**   SELECT <function-name>(<key-name>);
+**   SELECT <function-name>(<key-name>, <pointer>);
+**
+** where <function-name> is the name passed as the second argument
+** to the sqlite3Fts3InitHashTable() function (e.g. 'fts3_tokenizer').
+**
+** If the <pointer> argument is specified, it must be a blob value
+** containing a pointer to be stored as the hash data corresponding
+** to the string <key-name>. If <pointer> is not specified, then
+** the string <key-name> must already exist in the has table. Otherwise,
+** an error is returned.
+**
+** Whether or not the <pointer> argument is specified, the value returned
+** is a blob containing the pointer stored as the hash data corresponding
+** to string <key-name> (after the hash-table is updated, if applicable).
+*/
+static void fts3TokenizerFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  Fts3Hash *pHash;
+  void *pPtr = 0;
+  const unsigned char *zName;
+  int nName;
+
+  assert( argc==1 || argc==2 );
+
+  pHash = (Fts3Hash *)sqlite3_user_data(context);
+
+  zName = sqlite3_value_text(argv[0]);
+  nName = sqlite3_value_bytes(argv[0])+1;
+
+  if( argc==2 ){
+    if( fts3TokenizerEnabled(context) || sqlite3_value_frombind(argv[1]) ){
+      void *pOld;
+      int n = sqlite3_value_bytes(argv[1]);
+      if( zName==0 || n!=sizeof(pPtr) ){
+        sqlite3_result_error(context, "argument type mismatch", -1);
+        return;
+      }
+      pPtr = *(void **)sqlite3_value_blob(argv[1]);
+      pOld = sqlite3Fts3HashInsert(pHash, (void *)zName, nName, pPtr);
+      if( pOld==pPtr ){
+        sqlite3_result_error(context, "out of memory", -1);
+      }
+    }else{
+      sqlite3_result_error(context, "fts3tokenize disabled", -1);
+      return;
+    }
+  }else{
+    if( zName ){
+      pPtr = sqlite3Fts3HashFind(pHash, zName, nName);
+    }
+    if( !pPtr ){
+      char *zErr = sqlite3_mprintf("unknown tokenizer: %s", zName);
+      sqlite3_result_error(context, zErr, -1);
+      sqlite3_free(zErr);
+      return;
+    }
+  }
+  if( fts3TokenizerEnabled(context) || sqlite3_value_frombind(argv[0]) ){
+    sqlite3_result_blob(context, (void *)&pPtr, sizeof(pPtr), SQLITE_TRANSIENT);
+  }
+}
+
+int sqlite3Fts3IsIdChar(char c){
+  static const char isFtsIdChar[] = {
+      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  /* 0x */
+      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  /* 1x */
+      0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  /* 2x */
+      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0,  /* 3x */
+      0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,  /* 4x */
+      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1,  /* 5x */
+      0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,  /* 6x */
+      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0,  /* 7x */
+  };
+  return (c&0x80 || isFtsIdChar[(int)(c)]);
+}
+
+const char *sqlite3Fts3NextToken(const char *zStr, int *pn){
+  const char *z1;
+  const char *z2 = 0;
+
+  /* Find the start of the next token. */
+  z1 = zStr;
+  while( z2==0 ){
+    char c = *z1;
+    switch( c ){
+      case '\0': return 0;        /* No more tokens here */
+      case '\'':
+      case '"':
+      case '`': {
+        z2 = z1;
+        while( *++z2 && (*z2!=c || *++z2==c) );
+        break;
+      }
+      case '[':
+        z2 = &z1[1];
+        while( *z2 && z2[0]!=']' ) z2++;
+        if( *z2 ) z2++;
+        break;
+
+      default:
+        if( sqlite3Fts3IsIdChar(*z1) ){
+          z2 = &z1[1];
+          while( sqlite3Fts3IsIdChar(*z2) ) z2++;
+        }else{
+          z1++;
+        }
+    }
+  }
+
+  *pn = (int)(z2-z1);
+  return z1;
+}
+
+int sqlite3Fts3InitTokenizer(
+  Fts3Hash *pHash,                /* Tokenizer hash table */
+  const char *zArg,               /* Tokenizer name */
+  sqlite3_tokenizer **ppTok,      /* OUT: Tokenizer (if applicable) */
+  char **pzErr                    /* OUT: Set to malloced error message */
+){
+  int rc;
+  char *z = (char *)zArg;
+  int n = 0;
+  char *zCopy;
+  char *zEnd;                     /* Pointer to nul-term of zCopy */
+  sqlite3_tokenizer_module *m;
+
+  zCopy = sqlite3_mprintf("%s", zArg);
+  if( !zCopy ) return SQLITE_NOMEM;
+  zEnd = &zCopy[strlen(zCopy)];
+
+  z = (char *)sqlite3Fts3NextToken(zCopy, &n);
+  if( z==0 ){
+    assert( n==0 );
+    z = zCopy;
+  }
+  z[n] = '\0';
+  sqlite3Fts3Dequote(z);
+
+  m = (sqlite3_tokenizer_module *)sqlite3Fts3HashFind(pHash,z,(int)strlen(z)+1);
+  if( !m ){
+    sqlite3Fts3ErrMsg(pzErr, "unknown tokenizer: %s", z);
+    rc = SQLITE_ERROR;
+  }else{
+    char const **aArg = 0;
+    int iArg = 0;
+    z = &z[n+1];
+    while( z<zEnd && (NULL!=(z = (char *)sqlite3Fts3NextToken(z, &n))) ){
+      sqlite3_int64 nNew = sizeof(char *)*(iArg+1);
+      char const **aNew = (const char **)sqlite3_realloc64((void *)aArg, nNew);
+      if( !aNew ){
+        sqlite3_free(zCopy);
+        sqlite3_free((void *)aArg);
+        return SQLITE_NOMEM;
+      }
+      aArg = aNew;
+      aArg[iArg++] = z;
+      z[n] = '\0';
+      sqlite3Fts3Dequote(z);
+      z = &z[n+1];
+    }
+    rc = m->xCreate(iArg, aArg, ppTok);
+    assert( rc!=SQLITE_OK || *ppTok );
+    if( rc!=SQLITE_OK ){
+      sqlite3Fts3ErrMsg(pzErr, "unknown tokenizer");
+    }else{
+      (*ppTok)->pModule = m; 
+    }
+    sqlite3_free((void *)aArg);
+  }
+
+  sqlite3_free(zCopy);
+  return rc;
+}
+
+
+#ifdef SQLITE_TEST
+
+#include "tclsqlite.h"
+#include <string.h>
+
+/*
+** Implementation of a special SQL scalar function for testing tokenizers 
+** designed to be used in concert with the Tcl testing framework. This
+** function must be called with two or more arguments:
+**
+**   SELECT <function-name>(<key-name>, ..., <input-string>);
+**
+** where <function-name> is the name passed as the second argument
+** to the sqlite3Fts3InitHashTable() function (e.g. 'fts3_tokenizer')
+** concatenated with the string '_test' (e.g. 'fts3_tokenizer_test').
+**
+** The return value is a string that may be interpreted as a Tcl
+** list. For each token in the <input-string>, three elements are
+** added to the returned list. The first is the token position, the 
+** second is the token text (folded, stemmed, etc.) and the third is the
+** substring of <input-string> associated with the token. For example, 
+** using the built-in "simple" tokenizer:
+**
+**   SELECT fts_tokenizer_test('simple', 'I don't see how');
+**
+** will return the string:
+**
+**   "{0 i I 1 dont don't 2 see see 3 how how}"
+**   
+*/
+static void testFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  Fts3Hash *pHash;
+  sqlite3_tokenizer_module *p;
+  sqlite3_tokenizer *pTokenizer = 0;
+  sqlite3_tokenizer_cursor *pCsr = 0;
+
+  const char *zErr = 0;
+
+  const char *zName;
+  int nName;
+  const char *zInput;
+  int nInput;
+
+  const char *azArg[64];
+
+  const char *zToken;
+  int nToken = 0;
+  int iStart = 0;
+  int iEnd = 0;
+  int iPos = 0;
+  int i;
+
+  Tcl_Obj *pRet;
+
+  if( argc<2 ){
+    sqlite3_result_error(context, "insufficient arguments", -1);
+    return;
+  }
+
+  nName = sqlite3_value_bytes(argv[0]);
+  zName = (const char *)sqlite3_value_text(argv[0]);
+  nInput = sqlite3_value_bytes(argv[argc-1]);
+  zInput = (const char *)sqlite3_value_text(argv[argc-1]);
+
+  pHash = (Fts3Hash *)sqlite3_user_data(context);
+  p = (sqlite3_tokenizer_module *)sqlite3Fts3HashFind(pHash, zName, nName+1);
+
+  if( !p ){
+    char *zErr2 = sqlite3_mprintf("unknown tokenizer: %s", zName);
+    sqlite3_result_error(context, zErr2, -1);
+    sqlite3_free(zErr2);
+    return;
+  }
+
+  pRet = Tcl_NewObj();
+  Tcl_IncrRefCount(pRet);
+
+  for(i=1; i<argc-1; i++){
+    azArg[i-1] = (const char *)sqlite3_value_text(argv[i]);
+  }
+
+  if( SQLITE_OK!=p->xCreate(argc-2, azArg, &pTokenizer) ){
+    zErr = "error in xCreate()";
+    goto finish;
+  }
+  pTokenizer->pModule = p;
+  if( sqlite3Fts3OpenTokenizer(pTokenizer, 0, zInput, nInput, &pCsr) ){
+    zErr = "error in xOpen()";
+    goto finish;
+  }
+
+  while( SQLITE_OK==p->xNext(pCsr, &zToken, &nToken, &iStart, &iEnd, &iPos) ){
+    Tcl_ListObjAppendElement(0, pRet, Tcl_NewIntObj(iPos));
+    Tcl_ListObjAppendElement(0, pRet, Tcl_NewStringObj(zToken, nToken));
+    zToken = &zInput[iStart];
+    nToken = iEnd-iStart;
+    Tcl_ListObjAppendElement(0, pRet, Tcl_NewStringObj(zToken, nToken));
+  }
+
+  if( SQLITE_OK!=p->xClose(pCsr) ){
+    zErr = "error in xClose()";
+    goto finish;
+  }
+  if( SQLITE_OK!=p->xDestroy(pTokenizer) ){
+    zErr = "error in xDestroy()";
+    goto finish;
+  }
+
+finish:
+  if( zErr ){
+    sqlite3_result_error(context, zErr, -1);
+  }else{
+    sqlite3_result_text(context, Tcl_GetString(pRet), -1, SQLITE_TRANSIENT);
+  }
+  Tcl_DecrRefCount(pRet);
+}
+
+static
+int registerTokenizer(
+  sqlite3 *db, 
+  char *zName, 
+  const sqlite3_tokenizer_module *p
+){
+  int rc;
+  sqlite3_stmt *pStmt;
+  const char zSql[] = "SELECT fts3_tokenizer(?, ?)";
+
+  rc = sqlite3_prepare_v2(db, zSql, -1, &pStmt, 0);
+  if( rc!=SQLITE_OK ){
+    return rc;
+  }
+
+  sqlite3_bind_text(pStmt, 1, zName, -1, SQLITE_STATIC);
+  sqlite3_bind_blob(pStmt, 2, &p, sizeof(p), SQLITE_STATIC);
+  sqlite3_step(pStmt);
+
+  return sqlite3_finalize(pStmt);
+}
+
+
+static
+int queryTokenizer(
+  sqlite3 *db, 
+  char *zName,  
+  const sqlite3_tokenizer_module **pp
+){
+  int rc;
+  sqlite3_stmt *pStmt;
+  const char zSql[] = "SELECT fts3_tokenizer(?)";
+
+  *pp = 0;
+  rc = sqlite3_prepare_v2(db, zSql, -1, &pStmt, 0);
+  if( rc!=SQLITE_OK ){
+    return rc;
+  }
+
+  sqlite3_bind_text(pStmt, 1, zName, -1, SQLITE_STATIC);
+  if( SQLITE_ROW==sqlite3_step(pStmt) ){
+    if( sqlite3_column_type(pStmt, 0)==SQLITE_BLOB
+     && sqlite3_column_bytes(pStmt, 0)==sizeof(*pp)
+    ){
+      memcpy((void *)pp, sqlite3_column_blob(pStmt, 0), sizeof(*pp));
+    }
+  }
+
+  return sqlite3_finalize(pStmt);
+}
+
+void sqlite3Fts3SimpleTokenizerModule(sqlite3_tokenizer_module const**ppModule);
+
+/*
+** Implementation of the scalar function fts3_tokenizer_internal_test().
+** This function is used for testing only, it is not included in the
+** build unless SQLITE_TEST is defined.
+**
+** The purpose of this is to test that the fts3_tokenizer() function
+** can be used as designed by the C-code in the queryTokenizer and
+** registerTokenizer() functions above. These two functions are repeated
+** in the README.tokenizer file as an example, so it is important to
+** test them.
+**
+** To run the tests, evaluate the fts3_tokenizer_internal_test() scalar
+** function with no arguments. An assert() will fail if a problem is
+** detected. i.e.:
+**
+**     SELECT fts3_tokenizer_internal_test();
+**
+*/
+static void intTestFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  int rc;
+  const sqlite3_tokenizer_module *p1;
+  const sqlite3_tokenizer_module *p2;
+  sqlite3 *db = (sqlite3 *)sqlite3_user_data(context);
+
+  UNUSED_PARAMETER(argc);
+  UNUSED_PARAMETER(argv);
+
+  /* Test the query function */
+  sqlite3Fts3SimpleTokenizerModule(&p1);
+  rc = queryTokenizer(db, "simple", &p2);
+  assert( rc==SQLITE_OK );
+  assert( p1==p2 );
+  rc = queryTokenizer(db, "nosuchtokenizer", &p2);
+  assert( rc==SQLITE_ERROR );
+  assert( p2==0 );
+  assert( 0==strcmp(sqlite3_errmsg(db), "unknown tokenizer: nosuchtokenizer") );
+
+  /* Test the storage function */
+  if( fts3TokenizerEnabled(context) ){
+    rc = registerTokenizer(db, "nosuchtokenizer", p1);
+    assert( rc==SQLITE_OK );
+    rc = queryTokenizer(db, "nosuchtokenizer", &p2);
+    assert( rc==SQLITE_OK );
+    assert( p2==p1 );
+  }
+
+  sqlite3_result_text(context, "ok", -1, SQLITE_STATIC);
+}
+
+#endif
+
+/*
+** Set up SQL objects in database db used to access the contents of
+** the hash table pointed to by argument pHash. The hash table must
+** been initialized to use string keys, and to take a private copy 
+** of the key when a value is inserted. i.e. by a call similar to:
+**
+**    sqlite3Fts3HashInit(pHash, FTS3_HASH_STRING, 1);
+**
+** This function adds a scalar function (see header comment above
+** fts3TokenizerFunc() in this file for details) and, if ENABLE_TABLE is
+** defined at compilation time, a temporary virtual table (see header 
+** comment above struct HashTableVtab) to the database schema. Both 
+** provide read/write access to the contents of *pHash.
+**
+** The third argument to this function, zName, is used as the name
+** of both the scalar and, if created, the virtual table.
+*/
+int sqlite3Fts3InitHashTable(
+  sqlite3 *db, 
+  Fts3Hash *pHash, 
+  const char *zName
+){
+  int rc = SQLITE_OK;
+  void *p = (void *)pHash;
+  const int any = SQLITE_UTF8|SQLITE_DIRECTONLY;
+
+#ifdef SQLITE_TEST
+  char *zTest = 0;
+  char *zTest2 = 0;
+  void *pdb = (void *)db;
+  zTest = sqlite3_mprintf("%s_test", zName);
+  zTest2 = sqlite3_mprintf("%s_internal_test", zName);
+  if( !zTest || !zTest2 ){
+    rc = SQLITE_NOMEM;
+  }
+#endif
+
+  if( SQLITE_OK==rc ){
+    rc = sqlite3_create_function(db, zName, 1, any, p, fts3TokenizerFunc, 0, 0);
+  }
+  if( SQLITE_OK==rc ){
+    rc = sqlite3_create_function(db, zName, 2, any, p, fts3TokenizerFunc, 0, 0);
+  }
+#ifdef SQLITE_TEST
+  if( SQLITE_OK==rc ){
+    rc = sqlite3_create_function(db, zTest, -1, any, p, testFunc, 0, 0);
+  }
+  if( SQLITE_OK==rc ){
+    rc = sqlite3_create_function(db, zTest2, 0, any, pdb, intTestFunc, 0, 0);
+  }
+#endif
+
+#ifdef SQLITE_TEST
+  sqlite3_free(zTest);
+  sqlite3_free(zTest2);
+#endif
+
+  return rc;
+}
+
+#endif /* !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3) */
diff --git a/ext/fts3/fts3_tokenizer.h b/ext/fts3/fts3_tokenizer.h
new file mode 100644
index 0000000000000000000000000000000000000000..4a40b2b38503833bf17ded9ee2e2742e86267fc6
--- /dev/null
+++ b/ext/fts3/fts3_tokenizer.h
@@ -0,0 +1,161 @@
+/*
+** 2006 July 10
+**
+** The author disclaims copyright to this source code.
+**
+*************************************************************************
+** Defines the interface to tokenizers used by fulltext-search.  There
+** are three basic components:
+**
+** sqlite3_tokenizer_module is a singleton defining the tokenizer
+** interface functions.  This is essentially the class structure for
+** tokenizers.
+**
+** sqlite3_tokenizer is used to define a particular tokenizer, perhaps
+** including customization information defined at creation time.
+**
+** sqlite3_tokenizer_cursor is generated by a tokenizer to generate
+** tokens from a particular input.
+*/
+#ifndef _FTS3_TOKENIZER_H_
+#define _FTS3_TOKENIZER_H_
+
+/* TODO(shess) Only used for SQLITE_OK and SQLITE_DONE at this time.
+** If tokenizers are to be allowed to call sqlite3_*() functions, then
+** we will need a way to register the API consistently.
+*/
+#include "sqlite3.h"
+
+/*
+** Structures used by the tokenizer interface. When a new tokenizer
+** implementation is registered, the caller provides a pointer to
+** an sqlite3_tokenizer_module containing pointers to the callback
+** functions that make up an implementation.
+**
+** When an fts3 table is created, it passes any arguments passed to
+** the tokenizer clause of the CREATE VIRTUAL TABLE statement to the
+** sqlite3_tokenizer_module.xCreate() function of the requested tokenizer
+** implementation. The xCreate() function in turn returns an 
+** sqlite3_tokenizer structure representing the specific tokenizer to
+** be used for the fts3 table (customized by the tokenizer clause arguments).
+**
+** To tokenize an input buffer, the sqlite3_tokenizer_module.xOpen()
+** method is called. It returns an sqlite3_tokenizer_cursor object
+** that may be used to tokenize a specific input buffer based on
+** the tokenization rules supplied by a specific sqlite3_tokenizer
+** object.
+*/
+typedef struct sqlite3_tokenizer_module sqlite3_tokenizer_module;
+typedef struct sqlite3_tokenizer sqlite3_tokenizer;
+typedef struct sqlite3_tokenizer_cursor sqlite3_tokenizer_cursor;
+
+struct sqlite3_tokenizer_module {
+
+  /*
+  ** Structure version. Should always be set to 0 or 1.
+  */
+  int iVersion;
+
+  /*
+  ** Create a new tokenizer. The values in the argv[] array are the
+  ** arguments passed to the "tokenizer" clause of the CREATE VIRTUAL
+  ** TABLE statement that created the fts3 table. For example, if
+  ** the following SQL is executed:
+  **
+  **   CREATE .. USING fts3( ... , tokenizer <tokenizer-name> arg1 arg2)
+  **
+  ** then argc is set to 2, and the argv[] array contains pointers
+  ** to the strings "arg1" and "arg2".
+  **
+  ** This method should return either SQLITE_OK (0), or an SQLite error 
+  ** code. If SQLITE_OK is returned, then *ppTokenizer should be set
+  ** to point at the newly created tokenizer structure. The generic
+  ** sqlite3_tokenizer.pModule variable should not be initialized by
+  ** this callback. The caller will do so.
+  */
+  int (*xCreate)(
+    int argc,                           /* Size of argv array */
+    const char *const*argv,             /* Tokenizer argument strings */
+    sqlite3_tokenizer **ppTokenizer     /* OUT: Created tokenizer */
+  );
+
+  /*
+  ** Destroy an existing tokenizer. The fts3 module calls this method
+  ** exactly once for each successful call to xCreate().
+  */
+  int (*xDestroy)(sqlite3_tokenizer *pTokenizer);
+
+  /*
+  ** Create a tokenizer cursor to tokenize an input buffer. The caller
+  ** is responsible for ensuring that the input buffer remains valid
+  ** until the cursor is closed (using the xClose() method). 
+  */
+  int (*xOpen)(
+    sqlite3_tokenizer *pTokenizer,       /* Tokenizer object */
+    const char *pInput, int nBytes,      /* Input buffer */
+    sqlite3_tokenizer_cursor **ppCursor  /* OUT: Created tokenizer cursor */
+  );
+
+  /*
+  ** Destroy an existing tokenizer cursor. The fts3 module calls this 
+  ** method exactly once for each successful call to xOpen().
+  */
+  int (*xClose)(sqlite3_tokenizer_cursor *pCursor);
+
+  /*
+  ** Retrieve the next token from the tokenizer cursor pCursor. This
+  ** method should either return SQLITE_OK and set the values of the
+  ** "OUT" variables identified below, or SQLITE_DONE to indicate that
+  ** the end of the buffer has been reached, or an SQLite error code.
+  **
+  ** *ppToken should be set to point at a buffer containing the 
+  ** normalized version of the token (i.e. after any case-folding and/or
+  ** stemming has been performed). *pnBytes should be set to the length
+  ** of this buffer in bytes. The input text that generated the token is
+  ** identified by the byte offsets returned in *piStartOffset and
+  ** *piEndOffset. *piStartOffset should be set to the index of the first
+  ** byte of the token in the input buffer. *piEndOffset should be set
+  ** to the index of the first byte just past the end of the token in
+  ** the input buffer.
+  **
+  ** The buffer *ppToken is set to point at is managed by the tokenizer
+  ** implementation. It is only required to be valid until the next call
+  ** to xNext() or xClose(). 
+  */
+  /* TODO(shess) current implementation requires pInput to be
+  ** nul-terminated.  This should either be fixed, or pInput/nBytes
+  ** should be converted to zInput.
+  */
+  int (*xNext)(
+    sqlite3_tokenizer_cursor *pCursor,   /* Tokenizer cursor */
+    const char **ppToken, int *pnBytes,  /* OUT: Normalized text for token */
+    int *piStartOffset,  /* OUT: Byte offset of token in input buffer */
+    int *piEndOffset,    /* OUT: Byte offset of end of token in input buffer */
+    int *piPosition      /* OUT: Number of tokens returned before this one */
+  );
+
+  /***********************************************************************
+  ** Methods below this point are only available if iVersion>=1.
+  */
+
+  /* 
+  ** Configure the language id of a tokenizer cursor.
+  */
+  int (*xLanguageid)(sqlite3_tokenizer_cursor *pCsr, int iLangid);
+};
+
+struct sqlite3_tokenizer {
+  const sqlite3_tokenizer_module *pModule;  /* The module for this tokenizer */
+  /* Tokenizer implementations will typically add additional fields */
+};
+
+struct sqlite3_tokenizer_cursor {
+  sqlite3_tokenizer *pTokenizer;       /* Tokenizer for this cursor. */
+  /* Tokenizer implementations will typically add additional fields */
+};
+
+int fts3_global_term_cnt(int iTerm, int iCol);
+int fts3_term_cnt(int iTerm, int iCol);
+
+
+#endif /* _FTS3_TOKENIZER_H_ */
diff --git a/ext/fts3/fts3_tokenizer1.c b/ext/fts3/fts3_tokenizer1.c
new file mode 100644
index 0000000000000000000000000000000000000000..78e5889da5250184db89879b059a66eb5637aa93
--- /dev/null
+++ b/ext/fts3/fts3_tokenizer1.c
@@ -0,0 +1,234 @@
+/*
+** 2006 Oct 10
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** Implementation of the "simple" full-text-search tokenizer.
+*/
+
+/*
+** The code in this file is only compiled if:
+**
+**     * The FTS3 module is being built as an extension
+**       (in which case SQLITE_CORE is not defined), or
+**
+**     * The FTS3 module is being built into the core of
+**       SQLite (in which case SQLITE_ENABLE_FTS3 is defined).
+*/
+#include "fts3Int.h"
+#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3)
+
+#include <assert.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "fts3_tokenizer.h"
+
+typedef struct simple_tokenizer {
+  sqlite3_tokenizer base;
+  char delim[128];             /* flag ASCII delimiters */
+} simple_tokenizer;
+
+typedef struct simple_tokenizer_cursor {
+  sqlite3_tokenizer_cursor base;
+  const char *pInput;          /* input we are tokenizing */
+  int nBytes;                  /* size of the input */
+  int iOffset;                 /* current position in pInput */
+  int iToken;                  /* index of next token to be returned */
+  char *pToken;                /* storage for current token */
+  int nTokenAllocated;         /* space allocated to zToken buffer */
+} simple_tokenizer_cursor;
+
+
+static int simpleDelim(simple_tokenizer *t, unsigned char c){
+  return c<0x80 && t->delim[c];
+}
+static int fts3_isalnum(int x){
+  return (x>='0' && x<='9') || (x>='A' && x<='Z') || (x>='a' && x<='z');
+}
+
+/*
+** Create a new tokenizer instance.
+*/
+static int simpleCreate(
+  int argc, const char * const *argv,
+  sqlite3_tokenizer **ppTokenizer
+){
+  simple_tokenizer *t;
+
+  t = (simple_tokenizer *) sqlite3_malloc(sizeof(*t));
+  if( t==NULL ) return SQLITE_NOMEM;
+  memset(t, 0, sizeof(*t));
+
+  /* TODO(shess) Delimiters need to remain the same from run to run,
+  ** else we need to reindex.  One solution would be a meta-table to
+  ** track such information in the database, then we'd only want this
+  ** information on the initial create.
+  */
+  if( argc>1 ){
+    int i, n = (int)strlen(argv[1]);
+    for(i=0; i<n; i++){
+      unsigned char ch = argv[1][i];
+      /* We explicitly don't support UTF-8 delimiters for now. */
+      if( ch>=0x80 ){
+        sqlite3_free(t);
+        return SQLITE_ERROR;
+      }
+      t->delim[ch] = 1;
+    }
+  } else {
+    /* Mark non-alphanumeric ASCII characters as delimiters */
+    int i;
+    for(i=1; i<0x80; i++){
+      t->delim[i] = !fts3_isalnum(i) ? -1 : 0;
+    }
+  }
+
+  *ppTokenizer = &t->base;
+  return SQLITE_OK;
+}
+
+/*
+** Destroy a tokenizer
+*/
+static int simpleDestroy(sqlite3_tokenizer *pTokenizer){
+  sqlite3_free(pTokenizer);
+  return SQLITE_OK;
+}
+
+/*
+** Prepare to begin tokenizing a particular string.  The input
+** string to be tokenized is pInput[0..nBytes-1].  A cursor
+** used to incrementally tokenize this string is returned in 
+** *ppCursor.
+*/
+static int simpleOpen(
+  sqlite3_tokenizer *pTokenizer,         /* The tokenizer */
+  const char *pInput, int nBytes,        /* String to be tokenized */
+  sqlite3_tokenizer_cursor **ppCursor    /* OUT: Tokenization cursor */
+){
+  simple_tokenizer_cursor *c;
+
+  UNUSED_PARAMETER(pTokenizer);
+
+  c = (simple_tokenizer_cursor *) sqlite3_malloc(sizeof(*c));
+  if( c==NULL ) return SQLITE_NOMEM;
+
+  c->pInput = pInput;
+  if( pInput==0 ){
+    c->nBytes = 0;
+  }else if( nBytes<0 ){
+    c->nBytes = (int)strlen(pInput);
+  }else{
+    c->nBytes = nBytes;
+  }
+  c->iOffset = 0;                 /* start tokenizing at the beginning */
+  c->iToken = 0;
+  c->pToken = NULL;               /* no space allocated, yet. */
+  c->nTokenAllocated = 0;
+
+  *ppCursor = &c->base;
+  return SQLITE_OK;
+}
+
+/*
+** Close a tokenization cursor previously opened by a call to
+** simpleOpen() above.
+*/
+static int simpleClose(sqlite3_tokenizer_cursor *pCursor){
+  simple_tokenizer_cursor *c = (simple_tokenizer_cursor *) pCursor;
+  sqlite3_free(c->pToken);
+  sqlite3_free(c);
+  return SQLITE_OK;
+}
+
+/*
+** Extract the next token from a tokenization cursor.  The cursor must
+** have been opened by a prior call to simpleOpen().
+*/
+static int simpleNext(
+  sqlite3_tokenizer_cursor *pCursor,  /* Cursor returned by simpleOpen */
+  const char **ppToken,               /* OUT: *ppToken is the token text */
+  int *pnBytes,                       /* OUT: Number of bytes in token */
+  int *piStartOffset,                 /* OUT: Starting offset of token */
+  int *piEndOffset,                   /* OUT: Ending offset of token */
+  int *piPosition                     /* OUT: Position integer of token */
+){
+  simple_tokenizer_cursor *c = (simple_tokenizer_cursor *) pCursor;
+  simple_tokenizer *t = (simple_tokenizer *) pCursor->pTokenizer;
+  unsigned char *p = (unsigned char *)c->pInput;
+
+  while( c->iOffset<c->nBytes ){
+    int iStartOffset;
+
+    /* Scan past delimiter characters */
+    while( c->iOffset<c->nBytes && simpleDelim(t, p[c->iOffset]) ){
+      c->iOffset++;
+    }
+
+    /* Count non-delimiter characters. */
+    iStartOffset = c->iOffset;
+    while( c->iOffset<c->nBytes && !simpleDelim(t, p[c->iOffset]) ){
+      c->iOffset++;
+    }
+
+    if( c->iOffset>iStartOffset ){
+      int i, n = c->iOffset-iStartOffset;
+      if( n>c->nTokenAllocated ){
+        char *pNew;
+        c->nTokenAllocated = n+20;
+        pNew = sqlite3_realloc64(c->pToken, c->nTokenAllocated);
+        if( !pNew ) return SQLITE_NOMEM;
+        c->pToken = pNew;
+      }
+      for(i=0; i<n; i++){
+        /* TODO(shess) This needs expansion to handle UTF-8
+        ** case-insensitivity.
+        */
+        unsigned char ch = p[iStartOffset+i];
+        c->pToken[i] = (char)((ch>='A' && ch<='Z') ? ch-'A'+'a' : ch);
+      }
+      *ppToken = c->pToken;
+      *pnBytes = n;
+      *piStartOffset = iStartOffset;
+      *piEndOffset = c->iOffset;
+      *piPosition = c->iToken++;
+
+      return SQLITE_OK;
+    }
+  }
+  return SQLITE_DONE;
+}
+
+/*
+** The set of routines that implement the simple tokenizer
+*/
+static const sqlite3_tokenizer_module simpleTokenizerModule = {
+  0,
+  simpleCreate,
+  simpleDestroy,
+  simpleOpen,
+  simpleClose,
+  simpleNext,
+  0,
+};
+
+/*
+** Allocate a new simple tokenizer.  Return a pointer to the new
+** tokenizer in *ppModule
+*/
+void sqlite3Fts3SimpleTokenizerModule(
+  sqlite3_tokenizer_module const**ppModule
+){
+  *ppModule = &simpleTokenizerModule;
+}
+
+#endif /* !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3) */
diff --git a/ext/fts3/fts3_unicode.c b/ext/fts3/fts3_unicode.c
new file mode 100644
index 0000000000000000000000000000000000000000..2fd4b39fb7721a8df03477546875b23a0e6ba43f
--- /dev/null
+++ b/ext/fts3/fts3_unicode.c
@@ -0,0 +1,397 @@
+/*
+** 2012 May 24
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** Implementation of the "unicode" full-text-search tokenizer.
+*/
+
+#ifndef SQLITE_DISABLE_FTS3_UNICODE
+
+#include "fts3Int.h"
+#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3)
+
+#include <assert.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "fts3_tokenizer.h"
+
+/*
+** The following two macros - READ_UTF8 and WRITE_UTF8 - have been copied
+** from the sqlite3 source file utf.c. If this file is compiled as part
+** of the amalgamation, they are not required.
+*/
+#ifndef SQLITE_AMALGAMATION
+
+static const unsigned char sqlite3Utf8Trans1[] = {
+  0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+  0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
+  0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
+  0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
+  0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+  0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
+  0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+  0x00, 0x01, 0x02, 0x03, 0x00, 0x01, 0x00, 0x00,
+};
+
+#define READ_UTF8(zIn, zTerm, c)                           \
+  c = *(zIn++);                                            \
+  if( c>=0xc0 ){                                           \
+    c = sqlite3Utf8Trans1[c-0xc0];                         \
+    while( zIn!=zTerm && (*zIn & 0xc0)==0x80 ){            \
+      c = (c<<6) + (0x3f & *(zIn++));                      \
+    }                                                      \
+    if( c<0x80                                             \
+        || (c&0xFFFFF800)==0xD800                          \
+        || (c&0xFFFFFFFE)==0xFFFE ){  c = 0xFFFD; }        \
+  }
+
+#define WRITE_UTF8(zOut, c) {                          \
+  if( c<0x00080 ){                                     \
+    *zOut++ = (u8)(c&0xFF);                            \
+  }                                                    \
+  else if( c<0x00800 ){                                \
+    *zOut++ = 0xC0 + (u8)((c>>6)&0x1F);                \
+    *zOut++ = 0x80 + (u8)(c & 0x3F);                   \
+  }                                                    \
+  else if( c<0x10000 ){                                \
+    *zOut++ = 0xE0 + (u8)((c>>12)&0x0F);               \
+    *zOut++ = 0x80 + (u8)((c>>6) & 0x3F);              \
+    *zOut++ = 0x80 + (u8)(c & 0x3F);                   \
+  }else{                                               \
+    *zOut++ = 0xF0 + (u8)((c>>18) & 0x07);             \
+    *zOut++ = 0x80 + (u8)((c>>12) & 0x3F);             \
+    *zOut++ = 0x80 + (u8)((c>>6) & 0x3F);              \
+    *zOut++ = 0x80 + (u8)(c & 0x3F);                   \
+  }                                                    \
+}
+
+#endif /* ifndef SQLITE_AMALGAMATION */
+
+typedef struct unicode_tokenizer unicode_tokenizer;
+typedef struct unicode_cursor unicode_cursor;
+
+struct unicode_tokenizer {
+  sqlite3_tokenizer base;
+  int eRemoveDiacritic;
+  int nException;
+  int *aiException;
+};
+
+struct unicode_cursor {
+  sqlite3_tokenizer_cursor base;
+  const unsigned char *aInput;    /* Input text being tokenized */
+  int nInput;                     /* Size of aInput[] in bytes */
+  int iOff;                       /* Current offset within aInput[] */
+  int iToken;                     /* Index of next token to be returned */
+  char *zToken;                   /* storage for current token */
+  int nAlloc;                     /* space allocated at zToken */
+};
+
+
+/*
+** Destroy a tokenizer allocated by unicodeCreate().
+*/
+static int unicodeDestroy(sqlite3_tokenizer *pTokenizer){
+  if( pTokenizer ){
+    unicode_tokenizer *p = (unicode_tokenizer *)pTokenizer;
+    sqlite3_free(p->aiException);
+    sqlite3_free(p);
+  }
+  return SQLITE_OK;
+}
+
+/*
+** As part of a tokenchars= or separators= option, the CREATE VIRTUAL TABLE
+** statement has specified that the tokenizer for this table shall consider
+** all characters in string zIn/nIn to be separators (if bAlnum==0) or
+** token characters (if bAlnum==1).
+**
+** For each codepoint in the zIn/nIn string, this function checks if the
+** sqlite3FtsUnicodeIsalnum() function already returns the desired result.
+** If so, no action is taken. Otherwise, the codepoint is added to the 
+** unicode_tokenizer.aiException[] array. For the purposes of tokenization,
+** the return value of sqlite3FtsUnicodeIsalnum() is inverted for all
+** codepoints in the aiException[] array.
+**
+** If a standalone diacritic mark (one that sqlite3FtsUnicodeIsdiacritic()
+** identifies as a diacritic) occurs in the zIn/nIn string it is ignored.
+** It is not possible to change the behavior of the tokenizer with respect
+** to these codepoints.
+*/
+static int unicodeAddExceptions(
+  unicode_tokenizer *p,           /* Tokenizer to add exceptions to */
+  int bAlnum,                     /* Replace Isalnum() return value with this */
+  const char *zIn,                /* Array of characters to make exceptions */
+  int nIn                         /* Length of z in bytes */
+){
+  const unsigned char *z = (const unsigned char *)zIn;
+  const unsigned char *zTerm = &z[nIn];
+  unsigned int iCode;
+  int nEntry = 0;
+
+  assert( bAlnum==0 || bAlnum==1 );
+
+  while( z<zTerm ){
+    READ_UTF8(z, zTerm, iCode);
+    assert( (sqlite3FtsUnicodeIsalnum((int)iCode) & 0xFFFFFFFE)==0 );
+    if( sqlite3FtsUnicodeIsalnum((int)iCode)!=bAlnum 
+     && sqlite3FtsUnicodeIsdiacritic((int)iCode)==0 
+    ){
+      nEntry++;
+    }
+  }
+
+  if( nEntry ){
+    int *aNew;                    /* New aiException[] array */
+    int nNew;                     /* Number of valid entries in array aNew[] */
+
+    aNew = sqlite3_realloc64(p->aiException,(p->nException+nEntry)*sizeof(int));
+    if( aNew==0 ) return SQLITE_NOMEM;
+    nNew = p->nException;
+
+    z = (const unsigned char *)zIn;
+    while( z<zTerm ){
+      READ_UTF8(z, zTerm, iCode);
+      if( sqlite3FtsUnicodeIsalnum((int)iCode)!=bAlnum 
+       && sqlite3FtsUnicodeIsdiacritic((int)iCode)==0
+      ){
+        int i, j;
+        for(i=0; i<nNew && aNew[i]<(int)iCode; i++);
+        for(j=nNew; j>i; j--) aNew[j] = aNew[j-1];
+        aNew[i] = (int)iCode;
+        nNew++;
+      }
+    }
+    p->aiException = aNew;
+    p->nException = nNew;
+  }
+
+  return SQLITE_OK;
+}
+
+/*
+** Return true if the p->aiException[] array contains the value iCode.
+*/
+static int unicodeIsException(unicode_tokenizer *p, int iCode){
+  if( p->nException>0 ){
+    int *a = p->aiException;
+    int iLo = 0;
+    int iHi = p->nException-1;
+
+    while( iHi>=iLo ){
+      int iTest = (iHi + iLo) / 2;
+      if( iCode==a[iTest] ){
+        return 1;
+      }else if( iCode>a[iTest] ){
+        iLo = iTest+1;
+      }else{
+        iHi = iTest-1;
+      }
+    }
+  }
+
+  return 0;
+}
+
+/*
+** Return true if, for the purposes of tokenization, codepoint iCode is
+** considered a token character (not a separator).
+*/
+static int unicodeIsAlnum(unicode_tokenizer *p, int iCode){
+  assert( (sqlite3FtsUnicodeIsalnum(iCode) & 0xFFFFFFFE)==0 );
+  return sqlite3FtsUnicodeIsalnum(iCode) ^ unicodeIsException(p, iCode);
+}
+
+/*
+** Create a new tokenizer instance.
+*/
+static int unicodeCreate(
+  int nArg,                       /* Size of array argv[] */
+  const char * const *azArg,      /* Tokenizer creation arguments */
+  sqlite3_tokenizer **pp          /* OUT: New tokenizer handle */
+){
+  unicode_tokenizer *pNew;        /* New tokenizer object */
+  int i;
+  int rc = SQLITE_OK;
+
+  pNew = (unicode_tokenizer *) sqlite3_malloc(sizeof(unicode_tokenizer));
+  if( pNew==NULL ) return SQLITE_NOMEM;
+  memset(pNew, 0, sizeof(unicode_tokenizer));
+  pNew->eRemoveDiacritic = 1;
+
+  for(i=0; rc==SQLITE_OK && i<nArg; i++){
+    const char *z = azArg[i];
+    int n = (int)strlen(z);
+
+    if( n==19 && memcmp("remove_diacritics=1", z, 19)==0 ){
+      pNew->eRemoveDiacritic = 1;
+    }
+    else if( n==19 && memcmp("remove_diacritics=0", z, 19)==0 ){
+      pNew->eRemoveDiacritic = 0;
+    }
+    else if( n==19 && memcmp("remove_diacritics=2", z, 19)==0 ){
+      pNew->eRemoveDiacritic = 2;
+    }
+    else if( n>=11 && memcmp("tokenchars=", z, 11)==0 ){
+      rc = unicodeAddExceptions(pNew, 1, &z[11], n-11);
+    }
+    else if( n>=11 && memcmp("separators=", z, 11)==0 ){
+      rc = unicodeAddExceptions(pNew, 0, &z[11], n-11);
+    }
+    else{
+      /* Unrecognized argument */
+      rc  = SQLITE_ERROR;
+    }
+  }
+
+  if( rc!=SQLITE_OK ){
+    unicodeDestroy((sqlite3_tokenizer *)pNew);
+    pNew = 0;
+  }
+  *pp = (sqlite3_tokenizer *)pNew;
+  return rc;
+}
+
+/*
+** Prepare to begin tokenizing a particular string.  The input
+** string to be tokenized is pInput[0..nBytes-1].  A cursor
+** used to incrementally tokenize this string is returned in 
+** *ppCursor.
+*/
+static int unicodeOpen(
+  sqlite3_tokenizer *p,           /* The tokenizer */
+  const char *aInput,             /* Input string */
+  int nInput,                     /* Size of string aInput in bytes */
+  sqlite3_tokenizer_cursor **pp   /* OUT: New cursor object */
+){
+  unicode_cursor *pCsr;
+
+  pCsr = (unicode_cursor *)sqlite3_malloc(sizeof(unicode_cursor));
+  if( pCsr==0 ){
+    return SQLITE_NOMEM;
+  }
+  memset(pCsr, 0, sizeof(unicode_cursor));
+
+  pCsr->aInput = (const unsigned char *)aInput;
+  if( aInput==0 ){
+    pCsr->nInput = 0;
+    pCsr->aInput = (const unsigned char*)"";
+  }else if( nInput<0 ){
+    pCsr->nInput = (int)strlen(aInput);
+  }else{
+    pCsr->nInput = nInput;
+  }
+
+  *pp = &pCsr->base;
+  UNUSED_PARAMETER(p);
+  return SQLITE_OK;
+}
+
+/*
+** Close a tokenization cursor previously opened by a call to
+** simpleOpen() above.
+*/
+static int unicodeClose(sqlite3_tokenizer_cursor *pCursor){
+  unicode_cursor *pCsr = (unicode_cursor *) pCursor;
+  sqlite3_free(pCsr->zToken);
+  sqlite3_free(pCsr);
+  return SQLITE_OK;
+}
+
+/*
+** Extract the next token from a tokenization cursor.  The cursor must
+** have been opened by a prior call to simpleOpen().
+*/
+static int unicodeNext(
+  sqlite3_tokenizer_cursor *pC,   /* Cursor returned by simpleOpen */
+  const char **paToken,           /* OUT: Token text */
+  int *pnToken,                   /* OUT: Number of bytes at *paToken */
+  int *piStart,                   /* OUT: Starting offset of token */
+  int *piEnd,                     /* OUT: Ending offset of token */
+  int *piPos                      /* OUT: Position integer of token */
+){
+  unicode_cursor *pCsr = (unicode_cursor *)pC;
+  unicode_tokenizer *p = ((unicode_tokenizer *)pCsr->base.pTokenizer);
+  unsigned int iCode = 0;
+  char *zOut;
+  const unsigned char *z = &pCsr->aInput[pCsr->iOff];
+  const unsigned char *zStart = z;
+  const unsigned char *zEnd;
+  const unsigned char *zTerm = &pCsr->aInput[pCsr->nInput];
+
+  /* Scan past any delimiter characters before the start of the next token.
+  ** Return SQLITE_DONE early if this takes us all the way to the end of 
+  ** the input.  */
+  while( z<zTerm ){
+    READ_UTF8(z, zTerm, iCode);
+    if( unicodeIsAlnum(p, (int)iCode) ) break;
+    zStart = z;
+  }
+  if( zStart>=zTerm ) return SQLITE_DONE;
+
+  zOut = pCsr->zToken;
+  do {
+    int iOut;
+
+    /* Grow the output buffer if required. */
+    if( (zOut-pCsr->zToken)>=(pCsr->nAlloc-4) ){
+      char *zNew = sqlite3_realloc64(pCsr->zToken, pCsr->nAlloc+64);
+      if( !zNew ) return SQLITE_NOMEM;
+      zOut = &zNew[zOut - pCsr->zToken];
+      pCsr->zToken = zNew;
+      pCsr->nAlloc += 64;
+    }
+
+    /* Write the folded case of the last character read to the output */
+    zEnd = z;
+    iOut = sqlite3FtsUnicodeFold((int)iCode, p->eRemoveDiacritic);
+    if( iOut ){
+      WRITE_UTF8(zOut, iOut);
+    }
+
+    /* If the cursor is not at EOF, read the next character */
+    if( z>=zTerm ) break;
+    READ_UTF8(z, zTerm, iCode);
+  }while( unicodeIsAlnum(p, (int)iCode) 
+       || sqlite3FtsUnicodeIsdiacritic((int)iCode)
+  );
+
+  /* Set the output variables and return. */
+  pCsr->iOff = (int)(z - pCsr->aInput);
+  *paToken = pCsr->zToken;
+  *pnToken = (int)(zOut - pCsr->zToken);
+  *piStart = (int)(zStart - pCsr->aInput);
+  *piEnd = (int)(zEnd - pCsr->aInput);
+  *piPos = pCsr->iToken++;
+  return SQLITE_OK;
+}
+
+/*
+** Set *ppModule to a pointer to the sqlite3_tokenizer_module 
+** structure for the unicode tokenizer.
+*/
+void sqlite3Fts3UnicodeTokenizer(sqlite3_tokenizer_module const **ppModule){
+  static const sqlite3_tokenizer_module module = {
+    0,
+    unicodeCreate,
+    unicodeDestroy,
+    unicodeOpen,
+    unicodeClose,
+    unicodeNext,
+    0,
+  };
+  *ppModule = &module;
+}
+
+#endif /* !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3) */
+#endif /* ifndef SQLITE_DISABLE_FTS3_UNICODE */
diff --git a/ext/fts3/fts3_unicode2.c b/ext/fts3/fts3_unicode2.c
new file mode 100644
index 0000000000000000000000000000000000000000..c510162496dd95c8d21c0b588b8f247114503aca
--- /dev/null
+++ b/ext/fts3/fts3_unicode2.c
@@ -0,0 +1,383 @@
+/*
+** 2012-05-25
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+*/
+
+/*
+** DO NOT EDIT THIS MACHINE GENERATED FILE.
+*/
+
+#ifndef SQLITE_DISABLE_FTS3_UNICODE
+#if defined(SQLITE_ENABLE_FTS3) || defined(SQLITE_ENABLE_FTS4)
+
+#include <assert.h>
+
+/*
+** Return true if the argument corresponds to a unicode codepoint
+** classified as either a letter or a number. Otherwise false.
+**
+** The results are undefined if the value passed to this function
+** is less than zero.
+*/
+int sqlite3FtsUnicodeIsalnum(int c){
+  /* Each unsigned integer in the following array corresponds to a contiguous
+  ** range of unicode codepoints that are not either letters or numbers (i.e.
+  ** codepoints for which this function should return 0).
+  **
+  ** The most significant 22 bits in each 32-bit value contain the first 
+  ** codepoint in the range. The least significant 10 bits are used to store
+  ** the size of the range (always at least 1). In other words, the value 
+  ** ((C<<22) + N) represents a range of N codepoints starting with codepoint 
+  ** C. It is not possible to represent a range larger than 1023 codepoints 
+  ** using this format.
+  */
+  static const unsigned int aEntry[] = {
+    0x00000030, 0x0000E807, 0x00016C06, 0x0001EC2F, 0x0002AC07,
+    0x0002D001, 0x0002D803, 0x0002EC01, 0x0002FC01, 0x00035C01,
+    0x0003DC01, 0x000B0804, 0x000B480E, 0x000B9407, 0x000BB401,
+    0x000BBC81, 0x000DD401, 0x000DF801, 0x000E1002, 0x000E1C01,
+    0x000FD801, 0x00120808, 0x00156806, 0x00162402, 0x00163C01,
+    0x00164437, 0x0017CC02, 0x00180005, 0x00181816, 0x00187802,
+    0x00192C15, 0x0019A804, 0x0019C001, 0x001B5001, 0x001B580F,
+    0x001B9C07, 0x001BF402, 0x001C000E, 0x001C3C01, 0x001C4401,
+    0x001CC01B, 0x001E980B, 0x001FAC09, 0x001FD804, 0x00205804,
+    0x00206C09, 0x00209403, 0x0020A405, 0x0020C00F, 0x00216403,
+    0x00217801, 0x0023901B, 0x00240004, 0x0024E803, 0x0024F812,
+    0x00254407, 0x00258804, 0x0025C001, 0x00260403, 0x0026F001,
+    0x0026F807, 0x00271C02, 0x00272C03, 0x00275C01, 0x00278802,
+    0x0027C802, 0x0027E802, 0x00280403, 0x0028F001, 0x0028F805,
+    0x00291C02, 0x00292C03, 0x00294401, 0x0029C002, 0x0029D401,
+    0x002A0403, 0x002AF001, 0x002AF808, 0x002B1C03, 0x002B2C03,
+    0x002B8802, 0x002BC002, 0x002C0403, 0x002CF001, 0x002CF807,
+    0x002D1C02, 0x002D2C03, 0x002D5802, 0x002D8802, 0x002DC001,
+    0x002E0801, 0x002EF805, 0x002F1803, 0x002F2804, 0x002F5C01,
+    0x002FCC08, 0x00300403, 0x0030F807, 0x00311803, 0x00312804,
+    0x00315402, 0x00318802, 0x0031FC01, 0x00320802, 0x0032F001,
+    0x0032F807, 0x00331803, 0x00332804, 0x00335402, 0x00338802,
+    0x00340802, 0x0034F807, 0x00351803, 0x00352804, 0x00355C01,
+    0x00358802, 0x0035E401, 0x00360802, 0x00372801, 0x00373C06,
+    0x00375801, 0x00376008, 0x0037C803, 0x0038C401, 0x0038D007,
+    0x0038FC01, 0x00391C09, 0x00396802, 0x003AC401, 0x003AD006,
+    0x003AEC02, 0x003B2006, 0x003C041F, 0x003CD00C, 0x003DC417,
+    0x003E340B, 0x003E6424, 0x003EF80F, 0x003F380D, 0x0040AC14,
+    0x00412806, 0x00415804, 0x00417803, 0x00418803, 0x00419C07,
+    0x0041C404, 0x0042080C, 0x00423C01, 0x00426806, 0x0043EC01,
+    0x004D740C, 0x004E400A, 0x00500001, 0x0059B402, 0x005A0001,
+    0x005A6C02, 0x005BAC03, 0x005C4803, 0x005CC805, 0x005D4802,
+    0x005DC802, 0x005ED023, 0x005F6004, 0x005F7401, 0x0060000F,
+    0x0062A401, 0x0064800C, 0x0064C00C, 0x00650001, 0x00651002,
+    0x0066C011, 0x00672002, 0x00677822, 0x00685C05, 0x00687802,
+    0x0069540A, 0x0069801D, 0x0069FC01, 0x006A8007, 0x006AA006,
+    0x006C0005, 0x006CD011, 0x006D6823, 0x006E0003, 0x006E840D,
+    0x006F980E, 0x006FF004, 0x00709014, 0x0070EC05, 0x0071F802,
+    0x00730008, 0x00734019, 0x0073B401, 0x0073C803, 0x00770027,
+    0x0077F004, 0x007EF401, 0x007EFC03, 0x007F3403, 0x007F7403,
+    0x007FB403, 0x007FF402, 0x00800065, 0x0081A806, 0x0081E805,
+    0x00822805, 0x0082801A, 0x00834021, 0x00840002, 0x00840C04,
+    0x00842002, 0x00845001, 0x00845803, 0x00847806, 0x00849401,
+    0x00849C01, 0x0084A401, 0x0084B801, 0x0084E802, 0x00850005,
+    0x00852804, 0x00853C01, 0x00864264, 0x00900027, 0x0091000B,
+    0x0092704E, 0x00940200, 0x009C0475, 0x009E53B9, 0x00AD400A,
+    0x00B39406, 0x00B3BC03, 0x00B3E404, 0x00B3F802, 0x00B5C001,
+    0x00B5FC01, 0x00B7804F, 0x00B8C00C, 0x00BA001A, 0x00BA6C59,
+    0x00BC00D6, 0x00BFC00C, 0x00C00005, 0x00C02019, 0x00C0A807,
+    0x00C0D802, 0x00C0F403, 0x00C26404, 0x00C28001, 0x00C3EC01,
+    0x00C64002, 0x00C6580A, 0x00C70024, 0x00C8001F, 0x00C8A81E,
+    0x00C94001, 0x00C98020, 0x00CA2827, 0x00CB003F, 0x00CC0100,
+    0x01370040, 0x02924037, 0x0293F802, 0x02983403, 0x0299BC10,
+    0x029A7C01, 0x029BC008, 0x029C0017, 0x029C8002, 0x029E2402,
+    0x02A00801, 0x02A01801, 0x02A02C01, 0x02A08C09, 0x02A0D804,
+    0x02A1D004, 0x02A20002, 0x02A2D011, 0x02A33802, 0x02A38012,
+    0x02A3E003, 0x02A4980A, 0x02A51C0D, 0x02A57C01, 0x02A60004,
+    0x02A6CC1B, 0x02A77802, 0x02A8A40E, 0x02A90C01, 0x02A93002,
+    0x02A97004, 0x02A9DC03, 0x02A9EC01, 0x02AAC001, 0x02AAC803,
+    0x02AADC02, 0x02AAF802, 0x02AB0401, 0x02AB7802, 0x02ABAC07,
+    0x02ABD402, 0x02AF8C0B, 0x03600001, 0x036DFC02, 0x036FFC02,
+    0x037FFC01, 0x03EC7801, 0x03ECA401, 0x03EEC810, 0x03F4F802,
+    0x03F7F002, 0x03F8001A, 0x03F88007, 0x03F8C023, 0x03F95013,
+    0x03F9A004, 0x03FBFC01, 0x03FC040F, 0x03FC6807, 0x03FCEC06,
+    0x03FD6C0B, 0x03FF8007, 0x03FFA007, 0x03FFE405, 0x04040003,
+    0x0404DC09, 0x0405E411, 0x0406400C, 0x0407402E, 0x040E7C01,
+    0x040F4001, 0x04215C01, 0x04247C01, 0x0424FC01, 0x04280403,
+    0x04281402, 0x04283004, 0x0428E003, 0x0428FC01, 0x04294009,
+    0x0429FC01, 0x042CE407, 0x04400003, 0x0440E016, 0x04420003,
+    0x0442C012, 0x04440003, 0x04449C0E, 0x04450004, 0x04460003,
+    0x0446CC0E, 0x04471404, 0x045AAC0D, 0x0491C004, 0x05BD442E,
+    0x05BE3C04, 0x074000F6, 0x07440027, 0x0744A4B5, 0x07480046,
+    0x074C0057, 0x075B0401, 0x075B6C01, 0x075BEC01, 0x075C5401,
+    0x075CD401, 0x075D3C01, 0x075DBC01, 0x075E2401, 0x075EA401,
+    0x075F0C01, 0x07BBC002, 0x07C0002C, 0x07C0C064, 0x07C2800F,
+    0x07C2C40E, 0x07C3040F, 0x07C3440F, 0x07C4401F, 0x07C4C03C,
+    0x07C5C02B, 0x07C7981D, 0x07C8402B, 0x07C90009, 0x07C94002,
+    0x07CC0021, 0x07CCC006, 0x07CCDC46, 0x07CE0014, 0x07CE8025,
+    0x07CF1805, 0x07CF8011, 0x07D0003F, 0x07D10001, 0x07D108B6,
+    0x07D3E404, 0x07D4003E, 0x07D50004, 0x07D54018, 0x07D7EC46,
+    0x07D9140B, 0x07DA0046, 0x07DC0074, 0x38000401, 0x38008060,
+    0x380400F0,
+  };
+  static const unsigned int aAscii[4] = {
+    0xFFFFFFFF, 0xFC00FFFF, 0xF8000001, 0xF8000001,
+  };
+
+  if( (unsigned int)c<128 ){
+    return ( (aAscii[c >> 5] & ((unsigned int)1 << (c & 0x001F)))==0 );
+  }else if( (unsigned int)c<(1<<22) ){
+    unsigned int key = (((unsigned int)c)<<10) | 0x000003FF;
+    int iRes = 0;
+    int iHi = sizeof(aEntry)/sizeof(aEntry[0]) - 1;
+    int iLo = 0;
+    while( iHi>=iLo ){
+      int iTest = (iHi + iLo) / 2;
+      if( key >= aEntry[iTest] ){
+        iRes = iTest;
+        iLo = iTest+1;
+      }else{
+        iHi = iTest-1;
+      }
+    }
+    assert( aEntry[0]<key );
+    assert( key>=aEntry[iRes] );
+    return (((unsigned int)c) >= ((aEntry[iRes]>>10) + (aEntry[iRes]&0x3FF)));
+  }
+  return 1;
+}
+
+
+/*
+** If the argument is a codepoint corresponding to a lowercase letter
+** in the ASCII range with a diacritic added, return the codepoint
+** of the ASCII letter only. For example, if passed 235 - "LATIN
+** SMALL LETTER E WITH DIAERESIS" - return 65 ("LATIN SMALL LETTER
+** E"). The resuls of passing a codepoint that corresponds to an
+** uppercase letter are undefined.
+*/
+static int remove_diacritic(int c, int bComplex){
+  unsigned short aDia[] = {
+        0,  1797,  1848,  1859,  1891,  1928,  1940,  1995, 
+     2024,  2040,  2060,  2110,  2168,  2206,  2264,  2286, 
+     2344,  2383,  2472,  2488,  2516,  2596,  2668,  2732, 
+     2782,  2842,  2894,  2954,  2984,  3000,  3028,  3336, 
+     3456,  3696,  3712,  3728,  3744,  3766,  3832,  3896, 
+     3912,  3928,  3944,  3968,  4008,  4040,  4056,  4106, 
+     4138,  4170,  4202,  4234,  4266,  4296,  4312,  4344, 
+     4408,  4424,  4442,  4472,  4488,  4504,  6148,  6198, 
+     6264,  6280,  6360,  6429,  6505,  6529, 61448, 61468, 
+    61512, 61534, 61592, 61610, 61642, 61672, 61688, 61704, 
+    61726, 61784, 61800, 61816, 61836, 61880, 61896, 61914, 
+    61948, 61998, 62062, 62122, 62154, 62184, 62200, 62218, 
+    62252, 62302, 62364, 62410, 62442, 62478, 62536, 62554, 
+    62584, 62604, 62640, 62648, 62656, 62664, 62730, 62766, 
+    62830, 62890, 62924, 62974, 63032, 63050, 63082, 63118, 
+    63182, 63242, 63274, 63310, 63368, 63390, 
+  };
+#define HIBIT ((unsigned char)0x80)
+  unsigned char aChar[] = {
+    '\0',      'a',       'c',       'e',       'i',       'n',       
+    'o',       'u',       'y',       'y',       'a',       'c',       
+    'd',       'e',       'e',       'g',       'h',       'i',       
+    'j',       'k',       'l',       'n',       'o',       'r',       
+    's',       't',       'u',       'u',       'w',       'y',       
+    'z',       'o',       'u',       'a',       'i',       'o',       
+    'u',       'u'|HIBIT, 'a'|HIBIT, 'g',       'k',       'o',       
+    'o'|HIBIT, 'j',       'g',       'n',       'a'|HIBIT, 'a',       
+    'e',       'i',       'o',       'r',       'u',       's',       
+    't',       'h',       'a',       'e',       'o'|HIBIT, 'o',       
+    'o'|HIBIT, 'y',       '\0',      '\0',      '\0',      '\0',      
+    '\0',      '\0',      '\0',      '\0',      'a',       'b',       
+    'c'|HIBIT, 'd',       'd',       'e'|HIBIT, 'e',       'e'|HIBIT, 
+    'f',       'g',       'h',       'h',       'i',       'i'|HIBIT, 
+    'k',       'l',       'l'|HIBIT, 'l',       'm',       'n',       
+    'o'|HIBIT, 'p',       'r',       'r'|HIBIT, 'r',       's',       
+    's'|HIBIT, 't',       'u',       'u'|HIBIT, 'v',       'w',       
+    'w',       'x',       'y',       'z',       'h',       't',       
+    'w',       'y',       'a',       'a'|HIBIT, 'a'|HIBIT, 'a'|HIBIT, 
+    'e',       'e'|HIBIT, 'e'|HIBIT, 'i',       'o',       'o'|HIBIT, 
+    'o'|HIBIT, 'o'|HIBIT, 'u',       'u'|HIBIT, 'u'|HIBIT, 'y',       
+  };
+
+  unsigned int key = (((unsigned int)c)<<3) | 0x00000007;
+  int iRes = 0;
+  int iHi = sizeof(aDia)/sizeof(aDia[0]) - 1;
+  int iLo = 0;
+  while( iHi>=iLo ){
+    int iTest = (iHi + iLo) / 2;
+    if( key >= aDia[iTest] ){
+      iRes = iTest;
+      iLo = iTest+1;
+    }else{
+      iHi = iTest-1;
+    }
+  }
+  assert( key>=aDia[iRes] );
+  if( bComplex==0 && (aChar[iRes] & 0x80) ) return c;
+  return (c > (aDia[iRes]>>3) + (aDia[iRes]&0x07)) ? c : ((int)aChar[iRes] & 0x7F);
+}
+
+
+/*
+** Return true if the argument interpreted as a unicode codepoint
+** is a diacritical modifier character.
+*/
+int sqlite3FtsUnicodeIsdiacritic(int c){
+  unsigned int mask0 = 0x08029FDF;
+  unsigned int mask1 = 0x000361F8;
+  if( c<768 || c>817 ) return 0;
+  return (c < 768+32) ?
+      (mask0 & ((unsigned int)1 << (c-768))) :
+      (mask1 & ((unsigned int)1 << (c-768-32)));
+}
+
+
+/*
+** Interpret the argument as a unicode codepoint. If the codepoint
+** is an upper case character that has a lower case equivalent,
+** return the codepoint corresponding to the lower case version.
+** Otherwise, return a copy of the argument.
+**
+** The results are undefined if the value passed to this function
+** is less than zero.
+*/
+int sqlite3FtsUnicodeFold(int c, int eRemoveDiacritic){
+  /* Each entry in the following array defines a rule for folding a range
+  ** of codepoints to lower case. The rule applies to a range of nRange
+  ** codepoints starting at codepoint iCode.
+  **
+  ** If the least significant bit in flags is clear, then the rule applies
+  ** to all nRange codepoints (i.e. all nRange codepoints are upper case and
+  ** need to be folded). Or, if it is set, then the rule only applies to
+  ** every second codepoint in the range, starting with codepoint C.
+  **
+  ** The 7 most significant bits in flags are an index into the aiOff[]
+  ** array. If a specific codepoint C does require folding, then its lower
+  ** case equivalent is ((C + aiOff[flags>>1]) & 0xFFFF).
+  **
+  ** The contents of this array are generated by parsing the CaseFolding.txt
+  ** file distributed as part of the "Unicode Character Database". See
+  ** http://www.unicode.org for details.
+  */
+  static const struct TableEntry {
+    unsigned short iCode;
+    unsigned char flags;
+    unsigned char nRange;
+  } aEntry[] = {
+    {65, 14, 26},          {181, 64, 1},          {192, 14, 23},
+    {216, 14, 7},          {256, 1, 48},          {306, 1, 6},
+    {313, 1, 16},          {330, 1, 46},          {376, 116, 1},
+    {377, 1, 6},           {383, 104, 1},         {385, 50, 1},
+    {386, 1, 4},           {390, 44, 1},          {391, 0, 1},
+    {393, 42, 2},          {395, 0, 1},           {398, 32, 1},
+    {399, 38, 1},          {400, 40, 1},          {401, 0, 1},
+    {403, 42, 1},          {404, 46, 1},          {406, 52, 1},
+    {407, 48, 1},          {408, 0, 1},           {412, 52, 1},
+    {413, 54, 1},          {415, 56, 1},          {416, 1, 6},
+    {422, 60, 1},          {423, 0, 1},           {425, 60, 1},
+    {428, 0, 1},           {430, 60, 1},          {431, 0, 1},
+    {433, 58, 2},          {435, 1, 4},           {439, 62, 1},
+    {440, 0, 1},           {444, 0, 1},           {452, 2, 1},
+    {453, 0, 1},           {455, 2, 1},           {456, 0, 1},
+    {458, 2, 1},           {459, 1, 18},          {478, 1, 18},
+    {497, 2, 1},           {498, 1, 4},           {502, 122, 1},
+    {503, 134, 1},         {504, 1, 40},          {544, 110, 1},
+    {546, 1, 18},          {570, 70, 1},          {571, 0, 1},
+    {573, 108, 1},         {574, 68, 1},          {577, 0, 1},
+    {579, 106, 1},         {580, 28, 1},          {581, 30, 1},
+    {582, 1, 10},          {837, 36, 1},          {880, 1, 4},
+    {886, 0, 1},           {902, 18, 1},          {904, 16, 3},
+    {908, 26, 1},          {910, 24, 2},          {913, 14, 17},
+    {931, 14, 9},          {962, 0, 1},           {975, 4, 1},
+    {976, 140, 1},         {977, 142, 1},         {981, 146, 1},
+    {982, 144, 1},         {984, 1, 24},          {1008, 136, 1},
+    {1009, 138, 1},        {1012, 130, 1},        {1013, 128, 1},
+    {1015, 0, 1},          {1017, 152, 1},        {1018, 0, 1},
+    {1021, 110, 3},        {1024, 34, 16},        {1040, 14, 32},
+    {1120, 1, 34},         {1162, 1, 54},         {1216, 6, 1},
+    {1217, 1, 14},         {1232, 1, 88},         {1329, 22, 38},
+    {4256, 66, 38},        {4295, 66, 1},         {4301, 66, 1},
+    {7680, 1, 150},        {7835, 132, 1},        {7838, 96, 1},
+    {7840, 1, 96},         {7944, 150, 8},        {7960, 150, 6},
+    {7976, 150, 8},        {7992, 150, 8},        {8008, 150, 6},
+    {8025, 151, 8},        {8040, 150, 8},        {8072, 150, 8},
+    {8088, 150, 8},        {8104, 150, 8},        {8120, 150, 2},
+    {8122, 126, 2},        {8124, 148, 1},        {8126, 100, 1},
+    {8136, 124, 4},        {8140, 148, 1},        {8152, 150, 2},
+    {8154, 120, 2},        {8168, 150, 2},        {8170, 118, 2},
+    {8172, 152, 1},        {8184, 112, 2},        {8186, 114, 2},
+    {8188, 148, 1},        {8486, 98, 1},         {8490, 92, 1},
+    {8491, 94, 1},         {8498, 12, 1},         {8544, 8, 16},
+    {8579, 0, 1},          {9398, 10, 26},        {11264, 22, 47},
+    {11360, 0, 1},         {11362, 88, 1},        {11363, 102, 1},
+    {11364, 90, 1},        {11367, 1, 6},         {11373, 84, 1},
+    {11374, 86, 1},        {11375, 80, 1},        {11376, 82, 1},
+    {11378, 0, 1},         {11381, 0, 1},         {11390, 78, 2},
+    {11392, 1, 100},       {11499, 1, 4},         {11506, 0, 1},
+    {42560, 1, 46},        {42624, 1, 24},        {42786, 1, 14},
+    {42802, 1, 62},        {42873, 1, 4},         {42877, 76, 1},
+    {42878, 1, 10},        {42891, 0, 1},         {42893, 74, 1},
+    {42896, 1, 4},         {42912, 1, 10},        {42922, 72, 1},
+    {65313, 14, 26},       
+  };
+  static const unsigned short aiOff[] = {
+   1,     2,     8,     15,    16,    26,    28,    32,    
+   37,    38,    40,    48,    63,    64,    69,    71,    
+   79,    80,    116,   202,   203,   205,   206,   207,   
+   209,   210,   211,   213,   214,   217,   218,   219,   
+   775,   7264,  10792, 10795, 23228, 23256, 30204, 54721, 
+   54753, 54754, 54756, 54787, 54793, 54809, 57153, 57274, 
+   57921, 58019, 58363, 61722, 65268, 65341, 65373, 65406, 
+   65408, 65410, 65415, 65424, 65436, 65439, 65450, 65462, 
+   65472, 65476, 65478, 65480, 65482, 65488, 65506, 65511, 
+   65514, 65521, 65527, 65528, 65529, 
+  };
+
+  int ret = c;
+
+  assert( sizeof(unsigned short)==2 && sizeof(unsigned char)==1 );
+
+  if( c<128 ){
+    if( c>='A' && c<='Z' ) ret = c + ('a' - 'A');
+  }else if( c<65536 ){
+    const struct TableEntry *p;
+    int iHi = sizeof(aEntry)/sizeof(aEntry[0]) - 1;
+    int iLo = 0;
+    int iRes = -1;
+
+    assert( c>aEntry[0].iCode );
+    while( iHi>=iLo ){
+      int iTest = (iHi + iLo) / 2;
+      int cmp = (c - aEntry[iTest].iCode);
+      if( cmp>=0 ){
+        iRes = iTest;
+        iLo = iTest+1;
+      }else{
+        iHi = iTest-1;
+      }
+    }
+
+    assert( iRes>=0 && c>=aEntry[iRes].iCode );
+    p = &aEntry[iRes];
+    if( c<(p->iCode + p->nRange) && 0==(0x01 & p->flags & (p->iCode ^ c)) ){
+      ret = (c + (aiOff[p->flags>>1])) & 0x0000FFFF;
+      assert( ret>0 );
+    }
+
+    if( eRemoveDiacritic ){
+      ret = remove_diacritic(ret, eRemoveDiacritic==2);
+    }
+  }
+  
+  else if( c>=66560 && c<66600 ){
+    ret = c + 40;
+  }
+
+  return ret;
+}
+#endif /* defined(SQLITE_ENABLE_FTS3) || defined(SQLITE_ENABLE_FTS4) */
+#endif /* !defined(SQLITE_DISABLE_FTS3_UNICODE) */
diff --git a/ext/fts3/fts3_write.c b/ext/fts3/fts3_write.c
new file mode 100644
index 0000000000000000000000000000000000000000..5a449dec1efe76d54644a4e7a07cfc68b06ab14a
--- /dev/null
+++ b/ext/fts3/fts3_write.c
@@ -0,0 +1,5834 @@
+/*
+** 2009 Oct 23
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This file is part of the SQLite FTS3 extension module. Specifically,
+** this file contains code to insert, update and delete rows from FTS3
+** tables. It also contains code to merge FTS3 b-tree segments. Some
+** of the sub-routines used to merge segments are also used by the query 
+** code in fts3.c.
+*/
+
+#include "fts3Int.h"
+#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3)
+
+#include <string.h>
+#include <assert.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#define FTS_MAX_APPENDABLE_HEIGHT 16
+
+/*
+** When full-text index nodes are loaded from disk, the buffer that they
+** are loaded into has the following number of bytes of padding at the end 
+** of it. i.e. if a full-text index node is 900 bytes in size, then a buffer
+** of 920 bytes is allocated for it.
+**
+** This means that if we have a pointer into a buffer containing node data,
+** it is always safe to read up to two varints from it without risking an
+** overread, even if the node data is corrupted.
+*/
+#define FTS3_NODE_PADDING (FTS3_VARINT_MAX*2)
+
+/*
+** Under certain circumstances, b-tree nodes (doclists) can be loaded into
+** memory incrementally instead of all at once. This can be a big performance
+** win (reduced IO and CPU) if SQLite stops calling the virtual table xNext()
+** method before retrieving all query results (as may happen, for example,
+** if a query has a LIMIT clause).
+**
+** Incremental loading is used for b-tree nodes FTS3_NODE_CHUNK_THRESHOLD 
+** bytes and larger. Nodes are loaded in chunks of FTS3_NODE_CHUNKSIZE bytes.
+** The code is written so that the hard lower-limit for each of these values 
+** is 1. Clearly such small values would be inefficient, but can be useful 
+** for testing purposes.
+**
+** If this module is built with SQLITE_TEST defined, these constants may
+** be overridden at runtime for testing purposes. File fts3_test.c contains
+** a Tcl interface to read and write the values.
+*/
+#ifdef SQLITE_TEST
+int test_fts3_node_chunksize = (4*1024);
+int test_fts3_node_chunk_threshold = (4*1024)*4;
+# define FTS3_NODE_CHUNKSIZE       test_fts3_node_chunksize
+# define FTS3_NODE_CHUNK_THRESHOLD test_fts3_node_chunk_threshold
+#else
+# define FTS3_NODE_CHUNKSIZE (4*1024) 
+# define FTS3_NODE_CHUNK_THRESHOLD (FTS3_NODE_CHUNKSIZE*4)
+#endif
+
+/*
+** The values that may be meaningfully bound to the :1 parameter in
+** statements SQL_REPLACE_STAT and SQL_SELECT_STAT.
+*/
+#define FTS_STAT_DOCTOTAL      0
+#define FTS_STAT_INCRMERGEHINT 1
+#define FTS_STAT_AUTOINCRMERGE 2
+
+/*
+** If FTS_LOG_MERGES is defined, call sqlite3_log() to report each automatic
+** and incremental merge operation that takes place. This is used for 
+** debugging FTS only, it should not usually be turned on in production
+** systems.
+*/
+#ifdef FTS3_LOG_MERGES
+static void fts3LogMerge(int nMerge, sqlite3_int64 iAbsLevel){
+  sqlite3_log(SQLITE_OK, "%d-way merge from level %d", nMerge, (int)iAbsLevel);
+}
+#else
+#define fts3LogMerge(x, y)
+#endif
+
+
+typedef struct PendingList PendingList;
+typedef struct SegmentNode SegmentNode;
+typedef struct SegmentWriter SegmentWriter;
+
+/*
+** An instance of the following data structure is used to build doclists
+** incrementally. See function fts3PendingListAppend() for details.
+*/
+struct PendingList {
+  int nData;
+  char *aData;
+  int nSpace;
+  sqlite3_int64 iLastDocid;
+  sqlite3_int64 iLastCol;
+  sqlite3_int64 iLastPos;
+};
+
+
+/*
+** Each cursor has a (possibly empty) linked list of the following objects.
+*/
+struct Fts3DeferredToken {
+  Fts3PhraseToken *pToken;        /* Pointer to corresponding expr token */
+  int iCol;                       /* Column token must occur in */
+  Fts3DeferredToken *pNext;       /* Next in list of deferred tokens */
+  PendingList *pList;             /* Doclist is assembled here */
+};
+
+/*
+** An instance of this structure is used to iterate through the terms on
+** a contiguous set of segment b-tree leaf nodes. Although the details of
+** this structure are only manipulated by code in this file, opaque handles
+** of type Fts3SegReader* are also used by code in fts3.c to iterate through
+** terms when querying the full-text index. See functions:
+**
+**   sqlite3Fts3SegReaderNew()
+**   sqlite3Fts3SegReaderFree()
+**   sqlite3Fts3SegReaderIterate()
+**
+** Methods used to manipulate Fts3SegReader structures:
+**
+**   fts3SegReaderNext()
+**   fts3SegReaderFirstDocid()
+**   fts3SegReaderNextDocid()
+*/
+struct Fts3SegReader {
+  int iIdx;                       /* Index within level, or 0x7FFFFFFF for PT */
+  u8 bLookup;                     /* True for a lookup only */
+  u8 rootOnly;                    /* True for a root-only reader */
+
+  sqlite3_int64 iStartBlock;      /* Rowid of first leaf block to traverse */
+  sqlite3_int64 iLeafEndBlock;    /* Rowid of final leaf block to traverse */
+  sqlite3_int64 iEndBlock;        /* Rowid of final block in segment (or 0) */
+  sqlite3_int64 iCurrentBlock;    /* Current leaf block (or 0) */
+
+  char *aNode;                    /* Pointer to node data (or NULL) */
+  int nNode;                      /* Size of buffer at aNode (or 0) */
+  int nPopulate;                  /* If >0, bytes of buffer aNode[] loaded */
+  sqlite3_blob *pBlob;            /* If not NULL, blob handle to read node */
+
+  Fts3HashElem **ppNextElem;
+
+  /* Variables set by fts3SegReaderNext(). These may be read directly
+  ** by the caller. They are valid from the time SegmentReaderNew() returns
+  ** until SegmentReaderNext() returns something other than SQLITE_OK
+  ** (i.e. SQLITE_DONE).
+  */
+  int nTerm;                      /* Number of bytes in current term */
+  char *zTerm;                    /* Pointer to current term */
+  int nTermAlloc;                 /* Allocated size of zTerm buffer */
+  char *aDoclist;                 /* Pointer to doclist of current entry */
+  int nDoclist;                   /* Size of doclist in current entry */
+
+  /* The following variables are used by fts3SegReaderNextDocid() to iterate 
+  ** through the current doclist (aDoclist/nDoclist).
+  */
+  char *pOffsetList;
+  int nOffsetList;                /* For descending pending seg-readers only */
+  sqlite3_int64 iDocid;
+};
+
+#define fts3SegReaderIsPending(p) ((p)->ppNextElem!=0)
+#define fts3SegReaderIsRootOnly(p) ((p)->rootOnly!=0)
+
+/*
+** An instance of this structure is used to create a segment b-tree in the
+** database. The internal details of this type are only accessed by the
+** following functions:
+**
+**   fts3SegWriterAdd()
+**   fts3SegWriterFlush()
+**   fts3SegWriterFree()
+*/
+struct SegmentWriter {
+  SegmentNode *pTree;             /* Pointer to interior tree structure */
+  sqlite3_int64 iFirst;           /* First slot in %_segments written */
+  sqlite3_int64 iFree;            /* Next free slot in %_segments */
+  char *zTerm;                    /* Pointer to previous term buffer */
+  int nTerm;                      /* Number of bytes in zTerm */
+  int nMalloc;                    /* Size of malloc'd buffer at zMalloc */
+  char *zMalloc;                  /* Malloc'd space (possibly) used for zTerm */
+  int nSize;                      /* Size of allocation at aData */
+  int nData;                      /* Bytes of data in aData */
+  char *aData;                    /* Pointer to block from malloc() */
+  i64 nLeafData;                  /* Number of bytes of leaf data written */
+};
+
+/*
+** Type SegmentNode is used by the following three functions to create
+** the interior part of the segment b+-tree structures (everything except
+** the leaf nodes). These functions and type are only ever used by code
+** within the fts3SegWriterXXX() family of functions described above.
+**
+**   fts3NodeAddTerm()
+**   fts3NodeWrite()
+**   fts3NodeFree()
+**
+** When a b+tree is written to the database (either as a result of a merge
+** or the pending-terms table being flushed), leaves are written into the 
+** database file as soon as they are completely populated. The interior of
+** the tree is assembled in memory and written out only once all leaves have
+** been populated and stored. This is Ok, as the b+-tree fanout is usually
+** very large, meaning that the interior of the tree consumes relatively 
+** little memory.
+*/
+struct SegmentNode {
+  SegmentNode *pParent;           /* Parent node (or NULL for root node) */
+  SegmentNode *pRight;            /* Pointer to right-sibling */
+  SegmentNode *pLeftmost;         /* Pointer to left-most node of this depth */
+  int nEntry;                     /* Number of terms written to node so far */
+  char *zTerm;                    /* Pointer to previous term buffer */
+  int nTerm;                      /* Number of bytes in zTerm */
+  int nMalloc;                    /* Size of malloc'd buffer at zMalloc */
+  char *zMalloc;                  /* Malloc'd space (possibly) used for zTerm */
+  int nData;                      /* Bytes of valid data so far */
+  char *aData;                    /* Node data */
+};
+
+/*
+** Valid values for the second argument to fts3SqlStmt().
+*/
+#define SQL_DELETE_CONTENT             0
+#define SQL_IS_EMPTY                   1
+#define SQL_DELETE_ALL_CONTENT         2 
+#define SQL_DELETE_ALL_SEGMENTS        3
+#define SQL_DELETE_ALL_SEGDIR          4
+#define SQL_DELETE_ALL_DOCSIZE         5
+#define SQL_DELETE_ALL_STAT            6
+#define SQL_SELECT_CONTENT_BY_ROWID    7
+#define SQL_NEXT_SEGMENT_INDEX         8
+#define SQL_INSERT_SEGMENTS            9
+#define SQL_NEXT_SEGMENTS_ID          10
+#define SQL_INSERT_SEGDIR             11
+#define SQL_SELECT_LEVEL              12
+#define SQL_SELECT_LEVEL_RANGE        13
+#define SQL_SELECT_LEVEL_COUNT        14
+#define SQL_SELECT_SEGDIR_MAX_LEVEL   15
+#define SQL_DELETE_SEGDIR_LEVEL       16
+#define SQL_DELETE_SEGMENTS_RANGE     17
+#define SQL_CONTENT_INSERT            18
+#define SQL_DELETE_DOCSIZE            19
+#define SQL_REPLACE_DOCSIZE           20
+#define SQL_SELECT_DOCSIZE            21
+#define SQL_SELECT_STAT               22
+#define SQL_REPLACE_STAT              23
+
+#define SQL_SELECT_ALL_PREFIX_LEVEL   24
+#define SQL_DELETE_ALL_TERMS_SEGDIR   25
+#define SQL_DELETE_SEGDIR_RANGE       26
+#define SQL_SELECT_ALL_LANGID         27
+#define SQL_FIND_MERGE_LEVEL          28
+#define SQL_MAX_LEAF_NODE_ESTIMATE    29
+#define SQL_DELETE_SEGDIR_ENTRY       30
+#define SQL_SHIFT_SEGDIR_ENTRY        31
+#define SQL_SELECT_SEGDIR             32
+#define SQL_CHOMP_SEGDIR              33
+#define SQL_SEGMENT_IS_APPENDABLE     34
+#define SQL_SELECT_INDEXES            35
+#define SQL_SELECT_MXLEVEL            36
+
+#define SQL_SELECT_LEVEL_RANGE2       37
+#define SQL_UPDATE_LEVEL_IDX          38
+#define SQL_UPDATE_LEVEL              39
+
+/*
+** This function is used to obtain an SQLite prepared statement handle
+** for the statement identified by the second argument. If successful,
+** *pp is set to the requested statement handle and SQLITE_OK returned.
+** Otherwise, an SQLite error code is returned and *pp is set to 0.
+**
+** If argument apVal is not NULL, then it must point to an array with
+** at least as many entries as the requested statement has bound 
+** parameters. The values are bound to the statements parameters before
+** returning.
+*/
+static int fts3SqlStmt(
+  Fts3Table *p,                   /* Virtual table handle */
+  int eStmt,                      /* One of the SQL_XXX constants above */
+  sqlite3_stmt **pp,              /* OUT: Statement handle */
+  sqlite3_value **apVal           /* Values to bind to statement */
+){
+  const char *azSql[] = {
+/* 0  */  "DELETE FROM %Q.'%q_content' WHERE rowid = ?",
+/* 1  */  "SELECT NOT EXISTS(SELECT docid FROM %Q.'%q_content' WHERE rowid!=?)",
+/* 2  */  "DELETE FROM %Q.'%q_content'",
+/* 3  */  "DELETE FROM %Q.'%q_segments'",
+/* 4  */  "DELETE FROM %Q.'%q_segdir'",
+/* 5  */  "DELETE FROM %Q.'%q_docsize'",
+/* 6  */  "DELETE FROM %Q.'%q_stat'",
+/* 7  */  "SELECT %s WHERE rowid=?",
+/* 8  */  "SELECT (SELECT max(idx) FROM %Q.'%q_segdir' WHERE level = ?) + 1",
+/* 9  */  "REPLACE INTO %Q.'%q_segments'(blockid, block) VALUES(?, ?)",
+/* 10 */  "SELECT coalesce((SELECT max(blockid) FROM %Q.'%q_segments') + 1, 1)",
+/* 11 */  "REPLACE INTO %Q.'%q_segdir' VALUES(?,?,?,?,?,?)",
+
+          /* Return segments in order from oldest to newest.*/ 
+/* 12 */  "SELECT idx, start_block, leaves_end_block, end_block, root "
+            "FROM %Q.'%q_segdir' WHERE level = ? ORDER BY idx ASC",
+/* 13 */  "SELECT idx, start_block, leaves_end_block, end_block, root "
+            "FROM %Q.'%q_segdir' WHERE level BETWEEN ? AND ?"
+            "ORDER BY level DESC, idx ASC",
+
+/* 14 */  "SELECT count(*) FROM %Q.'%q_segdir' WHERE level = ?",
+/* 15 */  "SELECT max(level) FROM %Q.'%q_segdir' WHERE level BETWEEN ? AND ?",
+
+/* 16 */  "DELETE FROM %Q.'%q_segdir' WHERE level = ?",
+/* 17 */  "DELETE FROM %Q.'%q_segments' WHERE blockid BETWEEN ? AND ?",
+/* 18 */  "INSERT INTO %Q.'%q_content' VALUES(%s)",
+/* 19 */  "DELETE FROM %Q.'%q_docsize' WHERE docid = ?",
+/* 20 */  "REPLACE INTO %Q.'%q_docsize' VALUES(?,?)",
+/* 21 */  "SELECT size FROM %Q.'%q_docsize' WHERE docid=?",
+/* 22 */  "SELECT value FROM %Q.'%q_stat' WHERE id=?",
+/* 23 */  "REPLACE INTO %Q.'%q_stat' VALUES(?,?)",
+/* 24 */  "",
+/* 25 */  "",
+
+/* 26 */ "DELETE FROM %Q.'%q_segdir' WHERE level BETWEEN ? AND ?",
+/* 27 */ "SELECT ? UNION SELECT level / (1024 * ?) FROM %Q.'%q_segdir'",
+
+/* This statement is used to determine which level to read the input from
+** when performing an incremental merge. It returns the absolute level number
+** of the oldest level in the db that contains at least ? segments. Or,
+** if no level in the FTS index contains more than ? segments, the statement
+** returns zero rows.  */
+/* 28 */ "SELECT level, count(*) AS cnt FROM %Q.'%q_segdir' "
+         "  GROUP BY level HAVING cnt>=?"
+         "  ORDER BY (level %% 1024) ASC, 2 DESC LIMIT 1",
+
+/* Estimate the upper limit on the number of leaf nodes in a new segment
+** created by merging the oldest :2 segments from absolute level :1. See 
+** function sqlite3Fts3Incrmerge() for details.  */
+/* 29 */ "SELECT 2 * total(1 + leaves_end_block - start_block) "
+         "  FROM (SELECT * FROM %Q.'%q_segdir' "
+         "        WHERE level = ? ORDER BY idx ASC LIMIT ?"
+         "  )",
+
+/* SQL_DELETE_SEGDIR_ENTRY
+**   Delete the %_segdir entry on absolute level :1 with index :2.  */
+/* 30 */ "DELETE FROM %Q.'%q_segdir' WHERE level = ? AND idx = ?",
+
+/* SQL_SHIFT_SEGDIR_ENTRY
+**   Modify the idx value for the segment with idx=:3 on absolute level :2
+**   to :1.  */
+/* 31 */ "UPDATE %Q.'%q_segdir' SET idx = ? WHERE level=? AND idx=?",
+
+/* SQL_SELECT_SEGDIR
+**   Read a single entry from the %_segdir table. The entry from absolute 
+**   level :1 with index value :2.  */
+/* 32 */  "SELECT idx, start_block, leaves_end_block, end_block, root "
+            "FROM %Q.'%q_segdir' WHERE level = ? AND idx = ?",
+
+/* SQL_CHOMP_SEGDIR
+**   Update the start_block (:1) and root (:2) fields of the %_segdir
+**   entry located on absolute level :3 with index :4.  */
+/* 33 */  "UPDATE %Q.'%q_segdir' SET start_block = ?, root = ?"
+            "WHERE level = ? AND idx = ?",
+
+/* SQL_SEGMENT_IS_APPENDABLE
+**   Return a single row if the segment with end_block=? is appendable. Or
+**   no rows otherwise.  */
+/* 34 */  "SELECT 1 FROM %Q.'%q_segments' WHERE blockid=? AND block IS NULL",
+
+/* SQL_SELECT_INDEXES
+**   Return the list of valid segment indexes for absolute level ?  */
+/* 35 */  "SELECT idx FROM %Q.'%q_segdir' WHERE level=? ORDER BY 1 ASC",
+
+/* SQL_SELECT_MXLEVEL
+**   Return the largest relative level in the FTS index or indexes.  */
+/* 36 */  "SELECT max( level %% 1024 ) FROM %Q.'%q_segdir'",
+
+          /* Return segments in order from oldest to newest.*/ 
+/* 37 */  "SELECT level, idx, end_block "
+            "FROM %Q.'%q_segdir' WHERE level BETWEEN ? AND ? "
+            "ORDER BY level DESC, idx ASC",
+
+          /* Update statements used while promoting segments */
+/* 38 */  "UPDATE OR FAIL %Q.'%q_segdir' SET level=-1,idx=? "
+            "WHERE level=? AND idx=?",
+/* 39 */  "UPDATE OR FAIL %Q.'%q_segdir' SET level=? WHERE level=-1"
+
+  };
+  int rc = SQLITE_OK;
+  sqlite3_stmt *pStmt;
+
+  assert( SizeofArray(azSql)==SizeofArray(p->aStmt) );
+  assert( eStmt<SizeofArray(azSql) && eStmt>=0 );
+  
+  pStmt = p->aStmt[eStmt];
+  if( !pStmt ){
+    int f = SQLITE_PREPARE_PERSISTENT|SQLITE_PREPARE_NO_VTAB;
+    char *zSql;
+    if( eStmt==SQL_CONTENT_INSERT ){
+      zSql = sqlite3_mprintf(azSql[eStmt], p->zDb, p->zName, p->zWriteExprlist);
+    }else if( eStmt==SQL_SELECT_CONTENT_BY_ROWID ){
+      f &= ~SQLITE_PREPARE_NO_VTAB;
+      zSql = sqlite3_mprintf(azSql[eStmt], p->zReadExprlist);
+    }else{
+      zSql = sqlite3_mprintf(azSql[eStmt], p->zDb, p->zName);
+    }
+    if( !zSql ){
+      rc = SQLITE_NOMEM;
+    }else{
+      rc = sqlite3_prepare_v3(p->db, zSql, -1, f, &pStmt, NULL);
+      sqlite3_free(zSql);
+      assert( rc==SQLITE_OK || pStmt==0 );
+      p->aStmt[eStmt] = pStmt;
+    }
+  }
+  if( apVal ){
+    int i;
+    int nParam = sqlite3_bind_parameter_count(pStmt);
+    for(i=0; rc==SQLITE_OK && i<nParam; i++){
+      rc = sqlite3_bind_value(pStmt, i+1, apVal[i]);
+    }
+  }
+  *pp = pStmt;
+  return rc;
+}
+
+
+static int fts3SelectDocsize(
+  Fts3Table *pTab,                /* FTS3 table handle */
+  sqlite3_int64 iDocid,           /* Docid to bind for SQL_SELECT_DOCSIZE */
+  sqlite3_stmt **ppStmt           /* OUT: Statement handle */
+){
+  sqlite3_stmt *pStmt = 0;        /* Statement requested from fts3SqlStmt() */
+  int rc;                         /* Return code */
+
+  rc = fts3SqlStmt(pTab, SQL_SELECT_DOCSIZE, &pStmt, 0);
+  if( rc==SQLITE_OK ){
+    sqlite3_bind_int64(pStmt, 1, iDocid);
+    rc = sqlite3_step(pStmt);
+    if( rc!=SQLITE_ROW || sqlite3_column_type(pStmt, 0)!=SQLITE_BLOB ){
+      rc = sqlite3_reset(pStmt);
+      if( rc==SQLITE_OK ) rc = FTS_CORRUPT_VTAB;
+      pStmt = 0;
+    }else{
+      rc = SQLITE_OK;
+    }
+  }
+
+  *ppStmt = pStmt;
+  return rc;
+}
+
+int sqlite3Fts3SelectDoctotal(
+  Fts3Table *pTab,                /* Fts3 table handle */
+  sqlite3_stmt **ppStmt           /* OUT: Statement handle */
+){
+  sqlite3_stmt *pStmt = 0;
+  int rc;
+  rc = fts3SqlStmt(pTab, SQL_SELECT_STAT, &pStmt, 0);
+  if( rc==SQLITE_OK ){
+    sqlite3_bind_int(pStmt, 1, FTS_STAT_DOCTOTAL);
+    if( sqlite3_step(pStmt)!=SQLITE_ROW
+     || sqlite3_column_type(pStmt, 0)!=SQLITE_BLOB
+    ){
+      rc = sqlite3_reset(pStmt);
+      if( rc==SQLITE_OK ) rc = FTS_CORRUPT_VTAB;
+      pStmt = 0;
+    }
+  }
+  *ppStmt = pStmt;
+  return rc;
+}
+
+int sqlite3Fts3SelectDocsize(
+  Fts3Table *pTab,                /* Fts3 table handle */
+  sqlite3_int64 iDocid,           /* Docid to read size data for */
+  sqlite3_stmt **ppStmt           /* OUT: Statement handle */
+){
+  return fts3SelectDocsize(pTab, iDocid, ppStmt);
+}
+
+/*
+** Similar to fts3SqlStmt(). Except, after binding the parameters in
+** array apVal[] to the SQL statement identified by eStmt, the statement
+** is executed.
+**
+** Returns SQLITE_OK if the statement is successfully executed, or an
+** SQLite error code otherwise.
+*/
+static void fts3SqlExec(
+  int *pRC,                /* Result code */
+  Fts3Table *p,            /* The FTS3 table */
+  int eStmt,               /* Index of statement to evaluate */
+  sqlite3_value **apVal    /* Parameters to bind */
+){
+  sqlite3_stmt *pStmt;
+  int rc;
+  if( *pRC ) return;
+  rc = fts3SqlStmt(p, eStmt, &pStmt, apVal); 
+  if( rc==SQLITE_OK ){
+    sqlite3_step(pStmt);
+    rc = sqlite3_reset(pStmt);
+  }
+  *pRC = rc;
+}
+
+
+/*
+** This function ensures that the caller has obtained an exclusive 
+** shared-cache table-lock on the %_segdir table. This is required before 
+** writing data to the fts3 table. If this lock is not acquired first, then
+** the caller may end up attempting to take this lock as part of committing
+** a transaction, causing SQLite to return SQLITE_LOCKED or 
+** LOCKED_SHAREDCACHEto a COMMIT command.
+**
+** It is best to avoid this because if FTS3 returns any error when 
+** committing a transaction, the whole transaction will be rolled back. 
+** And this is not what users expect when they get SQLITE_LOCKED_SHAREDCACHE. 
+** It can still happen if the user locks the underlying tables directly 
+** instead of accessing them via FTS.
+*/
+static int fts3Writelock(Fts3Table *p){
+  int rc = SQLITE_OK;
+  
+  if( p->nPendingData==0 ){
+    sqlite3_stmt *pStmt;
+    rc = fts3SqlStmt(p, SQL_DELETE_SEGDIR_LEVEL, &pStmt, 0);
+    if( rc==SQLITE_OK ){
+      sqlite3_bind_null(pStmt, 1);
+      sqlite3_step(pStmt);
+      rc = sqlite3_reset(pStmt);
+    }
+  }
+
+  return rc;
+}
+
+/*
+** FTS maintains a separate indexes for each language-id (a 32-bit integer).
+** Within each language id, a separate index is maintained to store the
+** document terms, and each configured prefix size (configured the FTS 
+** "prefix=" option). And each index consists of multiple levels ("relative
+** levels").
+**
+** All three of these values (the language id, the specific index and the
+** level within the index) are encoded in 64-bit integer values stored
+** in the %_segdir table on disk. This function is used to convert three
+** separate component values into the single 64-bit integer value that
+** can be used to query the %_segdir table.
+**
+** Specifically, each language-id/index combination is allocated 1024 
+** 64-bit integer level values ("absolute levels"). The main terms index
+** for language-id 0 is allocate values 0-1023. The first prefix index
+** (if any) for language-id 0 is allocated values 1024-2047. And so on.
+** Language 1 indexes are allocated immediately following language 0.
+**
+** So, for a system with nPrefix prefix indexes configured, the block of
+** absolute levels that corresponds to language-id iLangid and index 
+** iIndex starts at absolute level ((iLangid * (nPrefix+1) + iIndex) * 1024).
+*/
+static sqlite3_int64 getAbsoluteLevel(
+  Fts3Table *p,                   /* FTS3 table handle */
+  int iLangid,                    /* Language id */
+  int iIndex,                     /* Index in p->aIndex[] */
+  int iLevel                      /* Level of segments */
+){
+  sqlite3_int64 iBase;            /* First absolute level for iLangid/iIndex */
+  assert_fts3_nc( iLangid>=0 );
+  assert( p->nIndex>0 );
+  assert( iIndex>=0 && iIndex<p->nIndex );
+
+  iBase = ((sqlite3_int64)iLangid * p->nIndex + iIndex) * FTS3_SEGDIR_MAXLEVEL;
+  return iBase + iLevel;
+}
+
+/*
+** Set *ppStmt to a statement handle that may be used to iterate through
+** all rows in the %_segdir table, from oldest to newest. If successful,
+** return SQLITE_OK. If an error occurs while preparing the statement, 
+** return an SQLite error code.
+**
+** There is only ever one instance of this SQL statement compiled for
+** each FTS3 table.
+**
+** The statement returns the following columns from the %_segdir table:
+**
+**   0: idx
+**   1: start_block
+**   2: leaves_end_block
+**   3: end_block
+**   4: root
+*/
+int sqlite3Fts3AllSegdirs(
+  Fts3Table *p,                   /* FTS3 table */
+  int iLangid,                    /* Language being queried */
+  int iIndex,                     /* Index for p->aIndex[] */
+  int iLevel,                     /* Level to select (relative level) */
+  sqlite3_stmt **ppStmt           /* OUT: Compiled statement */
+){
+  int rc;
+  sqlite3_stmt *pStmt = 0;
+
+  assert( iLevel==FTS3_SEGCURSOR_ALL || iLevel>=0 );
+  assert( iLevel<FTS3_SEGDIR_MAXLEVEL );
+  assert( iIndex>=0 && iIndex<p->nIndex );
+
+  if( iLevel<0 ){
+    /* "SELECT * FROM %_segdir WHERE level BETWEEN ? AND ? ORDER BY ..." */
+    rc = fts3SqlStmt(p, SQL_SELECT_LEVEL_RANGE, &pStmt, 0);
+    if( rc==SQLITE_OK ){ 
+      sqlite3_bind_int64(pStmt, 1, getAbsoluteLevel(p, iLangid, iIndex, 0));
+      sqlite3_bind_int64(pStmt, 2, 
+          getAbsoluteLevel(p, iLangid, iIndex, FTS3_SEGDIR_MAXLEVEL-1)
+      );
+    }
+  }else{
+    /* "SELECT * FROM %_segdir WHERE level = ? ORDER BY ..." */
+    rc = fts3SqlStmt(p, SQL_SELECT_LEVEL, &pStmt, 0);
+    if( rc==SQLITE_OK ){ 
+      sqlite3_bind_int64(pStmt, 1, getAbsoluteLevel(p, iLangid, iIndex,iLevel));
+    }
+  }
+  *ppStmt = pStmt;
+  return rc;
+}
+
+
+/*
+** Append a single varint to a PendingList buffer. SQLITE_OK is returned
+** if successful, or an SQLite error code otherwise.
+**
+** This function also serves to allocate the PendingList structure itself.
+** For example, to create a new PendingList structure containing two
+** varints:
+**
+**   PendingList *p = 0;
+**   fts3PendingListAppendVarint(&p, 1);
+**   fts3PendingListAppendVarint(&p, 2);
+*/
+static int fts3PendingListAppendVarint(
+  PendingList **pp,               /* IN/OUT: Pointer to PendingList struct */
+  sqlite3_int64 i                 /* Value to append to data */
+){
+  PendingList *p = *pp;
+
+  /* Allocate or grow the PendingList as required. */
+  if( !p ){
+    p = sqlite3_malloc64(sizeof(*p) + 100);
+    if( !p ){
+      return SQLITE_NOMEM;
+    }
+    p->nSpace = 100;
+    p->aData = (char *)&p[1];
+    p->nData = 0;
+  }
+  else if( p->nData+FTS3_VARINT_MAX+1>p->nSpace ){
+    i64 nNew = p->nSpace * 2;
+    p = sqlite3_realloc64(p, sizeof(*p) + nNew);
+    if( !p ){
+      sqlite3_free(*pp);
+      *pp = 0;
+      return SQLITE_NOMEM;
+    }
+    p->nSpace = (int)nNew;
+    p->aData = (char *)&p[1];
+  }
+
+  /* Append the new serialized varint to the end of the list. */
+  p->nData += sqlite3Fts3PutVarint(&p->aData[p->nData], i);
+  p->aData[p->nData] = '\0';
+  *pp = p;
+  return SQLITE_OK;
+}
+
+/*
+** Add a docid/column/position entry to a PendingList structure. Non-zero
+** is returned if the structure is sqlite3_realloced as part of adding
+** the entry. Otherwise, zero.
+**
+** If an OOM error occurs, *pRc is set to SQLITE_NOMEM before returning.
+** Zero is always returned in this case. Otherwise, if no OOM error occurs,
+** it is set to SQLITE_OK.
+*/
+static int fts3PendingListAppend(
+  PendingList **pp,               /* IN/OUT: PendingList structure */
+  sqlite3_int64 iDocid,           /* Docid for entry to add */
+  sqlite3_int64 iCol,             /* Column for entry to add */
+  sqlite3_int64 iPos,             /* Position of term for entry to add */
+  int *pRc                        /* OUT: Return code */
+){
+  PendingList *p = *pp;
+  int rc = SQLITE_OK;
+
+  assert( !p || p->iLastDocid<=iDocid );
+
+  if( !p || p->iLastDocid!=iDocid ){
+    u64 iDelta = (u64)iDocid - (u64)(p ? p->iLastDocid : 0);
+    if( p ){
+      assert( p->nData<p->nSpace );
+      assert( p->aData[p->nData]==0 );
+      p->nData++;
+    }
+    if( SQLITE_OK!=(rc = fts3PendingListAppendVarint(&p, iDelta)) ){
+      goto pendinglistappend_out;
+    }
+    p->iLastCol = -1;
+    p->iLastPos = 0;
+    p->iLastDocid = iDocid;
+  }
+  if( iCol>0 && p->iLastCol!=iCol ){
+    if( SQLITE_OK!=(rc = fts3PendingListAppendVarint(&p, 1))
+     || SQLITE_OK!=(rc = fts3PendingListAppendVarint(&p, iCol))
+    ){
+      goto pendinglistappend_out;
+    }
+    p->iLastCol = iCol;
+    p->iLastPos = 0;
+  }
+  if( iCol>=0 ){
+    assert( iPos>p->iLastPos || (iPos==0 && p->iLastPos==0) );
+    rc = fts3PendingListAppendVarint(&p, 2+iPos-p->iLastPos);
+    if( rc==SQLITE_OK ){
+      p->iLastPos = iPos;
+    }
+  }
+
+ pendinglistappend_out:
+  *pRc = rc;
+  if( p!=*pp ){
+    *pp = p;
+    return 1;
+  }
+  return 0;
+}
+
+/*
+** Free a PendingList object allocated by fts3PendingListAppend().
+*/
+static void fts3PendingListDelete(PendingList *pList){
+  sqlite3_free(pList);
+}
+
+/*
+** Add an entry to one of the pending-terms hash tables.
+*/
+static int fts3PendingTermsAddOne(
+  Fts3Table *p,
+  int iCol,
+  int iPos,
+  Fts3Hash *pHash,                /* Pending terms hash table to add entry to */
+  const char *zToken,
+  int nToken
+){
+  PendingList *pList;
+  int rc = SQLITE_OK;
+
+  pList = (PendingList *)fts3HashFind(pHash, zToken, nToken);
+  if( pList ){
+    p->nPendingData -= (pList->nData + nToken + sizeof(Fts3HashElem));
+  }
+  if( fts3PendingListAppend(&pList, p->iPrevDocid, iCol, iPos, &rc) ){
+    if( pList==fts3HashInsert(pHash, zToken, nToken, pList) ){
+      /* Malloc failed while inserting the new entry. This can only 
+      ** happen if there was no previous entry for this token.
+      */
+      assert( 0==fts3HashFind(pHash, zToken, nToken) );
+      sqlite3_free(pList);
+      rc = SQLITE_NOMEM;
+    }
+  }
+  if( rc==SQLITE_OK ){
+    p->nPendingData += (pList->nData + nToken + sizeof(Fts3HashElem));
+  }
+  return rc;
+}
+
+/*
+** Tokenize the nul-terminated string zText and add all tokens to the
+** pending-terms hash-table. The docid used is that currently stored in
+** p->iPrevDocid, and the column is specified by argument iCol.
+**
+** If successful, SQLITE_OK is returned. Otherwise, an SQLite error code.
+*/
+static int fts3PendingTermsAdd(
+  Fts3Table *p,                   /* Table into which text will be inserted */
+  int iLangid,                    /* Language id to use */
+  const char *zText,              /* Text of document to be inserted */
+  int iCol,                       /* Column into which text is being inserted */
+  u32 *pnWord                     /* IN/OUT: Incr. by number tokens inserted */
+){
+  int rc;
+  int iStart = 0;
+  int iEnd = 0;
+  int iPos = 0;
+  int nWord = 0;
+
+  char const *zToken;
+  int nToken = 0;
+
+  sqlite3_tokenizer *pTokenizer = p->pTokenizer;
+  sqlite3_tokenizer_module const *pModule = pTokenizer->pModule;
+  sqlite3_tokenizer_cursor *pCsr;
+  int (*xNext)(sqlite3_tokenizer_cursor *pCursor,
+      const char**,int*,int*,int*,int*);
+
+  assert( pTokenizer && pModule );
+
+  /* If the user has inserted a NULL value, this function may be called with
+  ** zText==0. In this case, add zero token entries to the hash table and 
+  ** return early. */
+  if( zText==0 ){
+    *pnWord = 0;
+    return SQLITE_OK;
+  }
+
+  rc = sqlite3Fts3OpenTokenizer(pTokenizer, iLangid, zText, -1, &pCsr);
+  if( rc!=SQLITE_OK ){
+    return rc;
+  }
+
+  xNext = pModule->xNext;
+  while( SQLITE_OK==rc
+      && SQLITE_OK==(rc = xNext(pCsr, &zToken, &nToken, &iStart, &iEnd, &iPos))
+  ){
+    int i;
+    if( iPos>=nWord ) nWord = iPos+1;
+
+    /* Positions cannot be negative; we use -1 as a terminator internally.
+    ** Tokens must have a non-zero length.
+    */
+    if( iPos<0 || !zToken || nToken<=0 ){
+      rc = SQLITE_ERROR;
+      break;
+    }
+
+    /* Add the term to the terms index */
+    rc = fts3PendingTermsAddOne(
+        p, iCol, iPos, &p->aIndex[0].hPending, zToken, nToken
+    );
+    
+    /* Add the term to each of the prefix indexes that it is not too 
+    ** short for. */
+    for(i=1; rc==SQLITE_OK && i<p->nIndex; i++){
+      struct Fts3Index *pIndex = &p->aIndex[i];
+      if( nToken<pIndex->nPrefix ) continue;
+      rc = fts3PendingTermsAddOne(
+          p, iCol, iPos, &pIndex->hPending, zToken, pIndex->nPrefix
+      );
+    }
+  }
+
+  pModule->xClose(pCsr);
+  *pnWord += nWord;
+  return (rc==SQLITE_DONE ? SQLITE_OK : rc);
+}
+
+/* 
+** Calling this function indicates that subsequent calls to 
+** fts3PendingTermsAdd() are to add term/position-list pairs for the
+** contents of the document with docid iDocid.
+*/
+static int fts3PendingTermsDocid(
+  Fts3Table *p,                   /* Full-text table handle */
+  int bDelete,                    /* True if this op is a delete */
+  int iLangid,                    /* Language id of row being written */
+  sqlite_int64 iDocid             /* Docid of row being written */
+){
+  assert( iLangid>=0 );
+  assert( bDelete==1 || bDelete==0 );
+
+  /* TODO(shess) Explore whether partially flushing the buffer on
+  ** forced-flush would provide better performance.  I suspect that if
+  ** we ordered the doclists by size and flushed the largest until the
+  ** buffer was half empty, that would let the less frequent terms
+  ** generate longer doclists.
+  */
+  if( iDocid<p->iPrevDocid 
+   || (iDocid==p->iPrevDocid && p->bPrevDelete==0)
+   || p->iPrevLangid!=iLangid
+   || p->nPendingData>p->nMaxPendingData 
+  ){
+    int rc = sqlite3Fts3PendingTermsFlush(p);
+    if( rc!=SQLITE_OK ) return rc;
+  }
+  p->iPrevDocid = iDocid;
+  p->iPrevLangid = iLangid;
+  p->bPrevDelete = bDelete;
+  return SQLITE_OK;
+}
+
+/*
+** Discard the contents of the pending-terms hash tables. 
+*/
+void sqlite3Fts3PendingTermsClear(Fts3Table *p){
+  int i;
+  for(i=0; i<p->nIndex; i++){
+    Fts3HashElem *pElem;
+    Fts3Hash *pHash = &p->aIndex[i].hPending;
+    for(pElem=fts3HashFirst(pHash); pElem; pElem=fts3HashNext(pElem)){
+      PendingList *pList = (PendingList *)fts3HashData(pElem);
+      fts3PendingListDelete(pList);
+    }
+    fts3HashClear(pHash);
+  }
+  p->nPendingData = 0;
+}
+
+/*
+** This function is called by the xUpdate() method as part of an INSERT
+** operation. It adds entries for each term in the new record to the
+** pendingTerms hash table.
+**
+** Argument apVal is the same as the similarly named argument passed to
+** fts3InsertData(). Parameter iDocid is the docid of the new row.
+*/
+static int fts3InsertTerms(
+  Fts3Table *p, 
+  int iLangid, 
+  sqlite3_value **apVal, 
+  u32 *aSz
+){
+  int i;                          /* Iterator variable */
+  for(i=2; i<p->nColumn+2; i++){
+    int iCol = i-2;
+    if( p->abNotindexed[iCol]==0 ){
+      const char *zText = (const char *)sqlite3_value_text(apVal[i]);
+      int rc = fts3PendingTermsAdd(p, iLangid, zText, iCol, &aSz[iCol]);
+      if( rc!=SQLITE_OK ){
+        return rc;
+      }
+      aSz[p->nColumn] += sqlite3_value_bytes(apVal[i]);
+    }
+  }
+  return SQLITE_OK;
+}
+
+/*
+** This function is called by the xUpdate() method for an INSERT operation.
+** The apVal parameter is passed a copy of the apVal argument passed by
+** SQLite to the xUpdate() method. i.e:
+**
+**   apVal[0]                Not used for INSERT.
+**   apVal[1]                rowid
+**   apVal[2]                Left-most user-defined column
+**   ...
+**   apVal[p->nColumn+1]     Right-most user-defined column
+**   apVal[p->nColumn+2]     Hidden column with same name as table
+**   apVal[p->nColumn+3]     Hidden "docid" column (alias for rowid)
+**   apVal[p->nColumn+4]     Hidden languageid column
+*/
+static int fts3InsertData(
+  Fts3Table *p,                   /* Full-text table */
+  sqlite3_value **apVal,          /* Array of values to insert */
+  sqlite3_int64 *piDocid          /* OUT: Docid for row just inserted */
+){
+  int rc;                         /* Return code */
+  sqlite3_stmt *pContentInsert;   /* INSERT INTO %_content VALUES(...) */
+
+  if( p->zContentTbl ){
+    sqlite3_value *pRowid = apVal[p->nColumn+3];
+    if( sqlite3_value_type(pRowid)==SQLITE_NULL ){
+      pRowid = apVal[1];
+    }
+    if( sqlite3_value_type(pRowid)!=SQLITE_INTEGER ){
+      return SQLITE_CONSTRAINT;
+    }
+    *piDocid = sqlite3_value_int64(pRowid);
+    return SQLITE_OK;
+  }
+
+  /* Locate the statement handle used to insert data into the %_content
+  ** table. The SQL for this statement is:
+  **
+  **   INSERT INTO %_content VALUES(?, ?, ?, ...)
+  **
+  ** The statement features N '?' variables, where N is the number of user
+  ** defined columns in the FTS3 table, plus one for the docid field.
+  */
+  rc = fts3SqlStmt(p, SQL_CONTENT_INSERT, &pContentInsert, &apVal[1]);
+  if( rc==SQLITE_OK && p->zLanguageid ){
+    rc = sqlite3_bind_int(
+        pContentInsert, p->nColumn+2, 
+        sqlite3_value_int(apVal[p->nColumn+4])
+    );
+  }
+  if( rc!=SQLITE_OK ) return rc;
+
+  /* There is a quirk here. The users INSERT statement may have specified
+  ** a value for the "rowid" field, for the "docid" field, or for both.
+  ** Which is a problem, since "rowid" and "docid" are aliases for the
+  ** same value. For example:
+  **
+  **   INSERT INTO fts3tbl(rowid, docid) VALUES(1, 2);
+  **
+  ** In FTS3, this is an error. It is an error to specify non-NULL values
+  ** for both docid and some other rowid alias.
+  */
+  if( SQLITE_NULL!=sqlite3_value_type(apVal[3+p->nColumn]) ){
+    if( SQLITE_NULL==sqlite3_value_type(apVal[0])
+     && SQLITE_NULL!=sqlite3_value_type(apVal[1])
+    ){
+      /* A rowid/docid conflict. */
+      return SQLITE_ERROR;
+    }
+    rc = sqlite3_bind_value(pContentInsert, 1, apVal[3+p->nColumn]);
+    if( rc!=SQLITE_OK ) return rc;
+  }
+
+  /* Execute the statement to insert the record. Set *piDocid to the 
+  ** new docid value. 
+  */
+  sqlite3_step(pContentInsert);
+  rc = sqlite3_reset(pContentInsert);
+
+  *piDocid = sqlite3_last_insert_rowid(p->db);
+  return rc;
+}
+
+
+
+/*
+** Remove all data from the FTS3 table. Clear the hash table containing
+** pending terms.
+*/
+static int fts3DeleteAll(Fts3Table *p, int bContent){
+  int rc = SQLITE_OK;             /* Return code */
+
+  /* Discard the contents of the pending-terms hash table. */
+  sqlite3Fts3PendingTermsClear(p);
+
+  /* Delete everything from the shadow tables. Except, leave %_content as
+  ** is if bContent is false.  */
+  assert( p->zContentTbl==0 || bContent==0 );
+  if( bContent ) fts3SqlExec(&rc, p, SQL_DELETE_ALL_CONTENT, 0);
+  fts3SqlExec(&rc, p, SQL_DELETE_ALL_SEGMENTS, 0);
+  fts3SqlExec(&rc, p, SQL_DELETE_ALL_SEGDIR, 0);
+  if( p->bHasDocsize ){
+    fts3SqlExec(&rc, p, SQL_DELETE_ALL_DOCSIZE, 0);
+  }
+  if( p->bHasStat ){
+    fts3SqlExec(&rc, p, SQL_DELETE_ALL_STAT, 0);
+  }
+  return rc;
+}
+
+/*
+**
+*/
+static int langidFromSelect(Fts3Table *p, sqlite3_stmt *pSelect){
+  int iLangid = 0;
+  if( p->zLanguageid ) iLangid = sqlite3_column_int(pSelect, p->nColumn+1);
+  return iLangid;
+}
+
+/*
+** The first element in the apVal[] array is assumed to contain the docid
+** (an integer) of a row about to be deleted. Remove all terms from the
+** full-text index.
+*/
+static void fts3DeleteTerms( 
+  int *pRC,               /* Result code */
+  Fts3Table *p,           /* The FTS table to delete from */
+  sqlite3_value *pRowid,  /* The docid to be deleted */
+  u32 *aSz,               /* Sizes of deleted document written here */
+  int *pbFound            /* OUT: Set to true if row really does exist */
+){
+  int rc;
+  sqlite3_stmt *pSelect;
+
+  assert( *pbFound==0 );
+  if( *pRC ) return;
+  rc = fts3SqlStmt(p, SQL_SELECT_CONTENT_BY_ROWID, &pSelect, &pRowid);
+  if( rc==SQLITE_OK ){
+    if( SQLITE_ROW==sqlite3_step(pSelect) ){
+      int i;
+      int iLangid = langidFromSelect(p, pSelect);
+      i64 iDocid = sqlite3_column_int64(pSelect, 0);
+      rc = fts3PendingTermsDocid(p, 1, iLangid, iDocid);
+      for(i=1; rc==SQLITE_OK && i<=p->nColumn; i++){
+        int iCol = i-1;
+        if( p->abNotindexed[iCol]==0 ){
+          const char *zText = (const char *)sqlite3_column_text(pSelect, i);
+          rc = fts3PendingTermsAdd(p, iLangid, zText, -1, &aSz[iCol]);
+          aSz[p->nColumn] += sqlite3_column_bytes(pSelect, i);
+        }
+      }
+      if( rc!=SQLITE_OK ){
+        sqlite3_reset(pSelect);
+        *pRC = rc;
+        return;
+      }
+      *pbFound = 1;
+    }
+    rc = sqlite3_reset(pSelect);
+  }else{
+    sqlite3_reset(pSelect);
+  }
+  *pRC = rc;
+}
+
+/*
+** Forward declaration to account for the circular dependency between
+** functions fts3SegmentMerge() and fts3AllocateSegdirIdx().
+*/
+static int fts3SegmentMerge(Fts3Table *, int, int, int);
+
+/* 
+** This function allocates a new level iLevel index in the segdir table.
+** Usually, indexes are allocated within a level sequentially starting
+** with 0, so the allocated index is one greater than the value returned
+** by:
+**
+**   SELECT max(idx) FROM %_segdir WHERE level = :iLevel
+**
+** However, if there are already FTS3_MERGE_COUNT indexes at the requested
+** level, they are merged into a single level (iLevel+1) segment and the 
+** allocated index is 0.
+**
+** If successful, *piIdx is set to the allocated index slot and SQLITE_OK
+** returned. Otherwise, an SQLite error code is returned.
+*/
+static int fts3AllocateSegdirIdx(
+  Fts3Table *p, 
+  int iLangid,                    /* Language id */
+  int iIndex,                     /* Index for p->aIndex */
+  int iLevel, 
+  int *piIdx
+){
+  int rc;                         /* Return Code */
+  sqlite3_stmt *pNextIdx;         /* Query for next idx at level iLevel */
+  int iNext = 0;                  /* Result of query pNextIdx */
+
+  assert( iLangid>=0 );
+  assert( p->nIndex>=1 );
+
+  /* Set variable iNext to the next available segdir index at level iLevel. */
+  rc = fts3SqlStmt(p, SQL_NEXT_SEGMENT_INDEX, &pNextIdx, 0);
+  if( rc==SQLITE_OK ){
+    sqlite3_bind_int64(
+        pNextIdx, 1, getAbsoluteLevel(p, iLangid, iIndex, iLevel)
+    );
+    if( SQLITE_ROW==sqlite3_step(pNextIdx) ){
+      iNext = sqlite3_column_int(pNextIdx, 0);
+    }
+    rc = sqlite3_reset(pNextIdx);
+  }
+
+  if( rc==SQLITE_OK ){
+    /* If iNext is FTS3_MERGE_COUNT, indicating that level iLevel is already
+    ** full, merge all segments in level iLevel into a single iLevel+1
+    ** segment and allocate (newly freed) index 0 at level iLevel. Otherwise,
+    ** if iNext is less than FTS3_MERGE_COUNT, allocate index iNext.
+    */
+    if( iNext>=MergeCount(p) ){
+      fts3LogMerge(16, getAbsoluteLevel(p, iLangid, iIndex, iLevel));
+      rc = fts3SegmentMerge(p, iLangid, iIndex, iLevel);
+      *piIdx = 0;
+    }else{
+      *piIdx = iNext;
+    }
+  }
+
+  return rc;
+}
+
+/*
+** The %_segments table is declared as follows:
+**
+**   CREATE TABLE %_segments(blockid INTEGER PRIMARY KEY, block BLOB)
+**
+** This function reads data from a single row of the %_segments table. The
+** specific row is identified by the iBlockid parameter. If paBlob is not
+** NULL, then a buffer is allocated using sqlite3_malloc() and populated
+** with the contents of the blob stored in the "block" column of the 
+** identified table row is. Whether or not paBlob is NULL, *pnBlob is set
+** to the size of the blob in bytes before returning.
+**
+** If an error occurs, or the table does not contain the specified row,
+** an SQLite error code is returned. Otherwise, SQLITE_OK is returned. If
+** paBlob is non-NULL, then it is the responsibility of the caller to
+** eventually free the returned buffer.
+**
+** This function may leave an open sqlite3_blob* handle in the
+** Fts3Table.pSegments variable. This handle is reused by subsequent calls
+** to this function. The handle may be closed by calling the
+** sqlite3Fts3SegmentsClose() function. Reusing a blob handle is a handy
+** performance improvement, but the blob handle should always be closed
+** before control is returned to the user (to prevent a lock being held
+** on the database file for longer than necessary). Thus, any virtual table
+** method (xFilter etc.) that may directly or indirectly call this function
+** must call sqlite3Fts3SegmentsClose() before returning.
+*/
+int sqlite3Fts3ReadBlock(
+  Fts3Table *p,                   /* FTS3 table handle */
+  sqlite3_int64 iBlockid,         /* Access the row with blockid=$iBlockid */
+  char **paBlob,                  /* OUT: Blob data in malloc'd buffer */
+  int *pnBlob,                    /* OUT: Size of blob data */
+  int *pnLoad                     /* OUT: Bytes actually loaded */
+){
+  int rc;                         /* Return code */
+
+  /* pnBlob must be non-NULL. paBlob may be NULL or non-NULL. */
+  assert( pnBlob );
+
+  if( p->pSegments ){
+    rc = sqlite3_blob_reopen(p->pSegments, iBlockid);
+  }else{
+    if( 0==p->zSegmentsTbl ){
+      p->zSegmentsTbl = sqlite3_mprintf("%s_segments", p->zName);
+      if( 0==p->zSegmentsTbl ) return SQLITE_NOMEM;
+    }
+    rc = sqlite3_blob_open(
+       p->db, p->zDb, p->zSegmentsTbl, "block", iBlockid, 0, &p->pSegments
+    );
+  }
+
+  if( rc==SQLITE_OK ){
+    int nByte = sqlite3_blob_bytes(p->pSegments);
+    *pnBlob = nByte;
+    if( paBlob ){
+      char *aByte = sqlite3_malloc64((i64)nByte + FTS3_NODE_PADDING);
+      if( !aByte ){
+        rc = SQLITE_NOMEM;
+      }else{
+        if( pnLoad && nByte>(FTS3_NODE_CHUNK_THRESHOLD) ){
+          nByte = FTS3_NODE_CHUNKSIZE;
+          *pnLoad = nByte;
+        }
+        rc = sqlite3_blob_read(p->pSegments, aByte, nByte, 0);
+        memset(&aByte[nByte], 0, FTS3_NODE_PADDING);
+        if( rc!=SQLITE_OK ){
+          sqlite3_free(aByte);
+          aByte = 0;
+        }
+      }
+      *paBlob = aByte;
+    }
+  }else if( rc==SQLITE_ERROR ){
+    rc = FTS_CORRUPT_VTAB;
+  }
+
+  return rc;
+}
+
+/*
+** Close the blob handle at p->pSegments, if it is open. See comments above
+** the sqlite3Fts3ReadBlock() function for details.
+*/
+void sqlite3Fts3SegmentsClose(Fts3Table *p){
+  sqlite3_blob_close(p->pSegments);
+  p->pSegments = 0;
+}
+    
+static int fts3SegReaderIncrRead(Fts3SegReader *pReader){
+  int nRead;                      /* Number of bytes to read */
+  int rc;                         /* Return code */
+
+  nRead = MIN(pReader->nNode - pReader->nPopulate, FTS3_NODE_CHUNKSIZE);
+  rc = sqlite3_blob_read(
+      pReader->pBlob, 
+      &pReader->aNode[pReader->nPopulate],
+      nRead,
+      pReader->nPopulate
+  );
+
+  if( rc==SQLITE_OK ){
+    pReader->nPopulate += nRead;
+    memset(&pReader->aNode[pReader->nPopulate], 0, FTS3_NODE_PADDING);
+    if( pReader->nPopulate==pReader->nNode ){
+      sqlite3_blob_close(pReader->pBlob);
+      pReader->pBlob = 0;
+      pReader->nPopulate = 0;
+    }
+  }
+  return rc;
+}
+
+static int fts3SegReaderRequire(Fts3SegReader *pReader, char *pFrom, int nByte){
+  int rc = SQLITE_OK;
+  assert( !pReader->pBlob 
+       || (pFrom>=pReader->aNode && pFrom<&pReader->aNode[pReader->nNode])
+  );
+  while( pReader->pBlob && rc==SQLITE_OK 
+     &&  (pFrom - pReader->aNode + nByte)>pReader->nPopulate
+  ){
+    rc = fts3SegReaderIncrRead(pReader);
+  }
+  return rc;
+}
+
+/*
+** Set an Fts3SegReader cursor to point at EOF.
+*/
+static void fts3SegReaderSetEof(Fts3SegReader *pSeg){
+  if( !fts3SegReaderIsRootOnly(pSeg) ){
+    sqlite3_free(pSeg->aNode);
+    sqlite3_blob_close(pSeg->pBlob);
+    pSeg->pBlob = 0;
+  }
+  pSeg->aNode = 0;
+}
+
+/*
+** Move the iterator passed as the first argument to the next term in the
+** segment. If successful, SQLITE_OK is returned. If there is no next term,
+** SQLITE_DONE. Otherwise, an SQLite error code.
+*/
+static int fts3SegReaderNext(
+  Fts3Table *p, 
+  Fts3SegReader *pReader,
+  int bIncr
+){
+  int rc;                         /* Return code of various sub-routines */
+  char *pNext;                    /* Cursor variable */
+  int nPrefix;                    /* Number of bytes in term prefix */
+  int nSuffix;                    /* Number of bytes in term suffix */
+
+  if( !pReader->aDoclist ){
+    pNext = pReader->aNode;
+  }else{
+    pNext = &pReader->aDoclist[pReader->nDoclist];
+  }
+
+  if( !pNext || pNext>=&pReader->aNode[pReader->nNode] ){
+
+    if( fts3SegReaderIsPending(pReader) ){
+      Fts3HashElem *pElem = *(pReader->ppNextElem);
+      sqlite3_free(pReader->aNode);
+      pReader->aNode = 0;
+      if( pElem ){
+        char *aCopy;
+        PendingList *pList = (PendingList *)fts3HashData(pElem);
+        int nCopy = pList->nData+1;
+
+        int nTerm = fts3HashKeysize(pElem);
+        if( (nTerm+1)>pReader->nTermAlloc ){
+          sqlite3_free(pReader->zTerm);
+          pReader->zTerm = (char*)sqlite3_malloc64(((i64)nTerm+1)*2);
+          if( !pReader->zTerm ) return SQLITE_NOMEM;
+          pReader->nTermAlloc = (nTerm+1)*2;
+        }
+        memcpy(pReader->zTerm, fts3HashKey(pElem), nTerm);
+        pReader->zTerm[nTerm] = '\0';
+        pReader->nTerm = nTerm;
+
+        aCopy = (char*)sqlite3_malloc64(nCopy);
+        if( !aCopy ) return SQLITE_NOMEM;
+        memcpy(aCopy, pList->aData, nCopy);
+        pReader->nNode = pReader->nDoclist = nCopy;
+        pReader->aNode = pReader->aDoclist = aCopy;
+        pReader->ppNextElem++;
+        assert( pReader->aNode );
+      }
+      return SQLITE_OK;
+    }
+
+    fts3SegReaderSetEof(pReader);
+
+    /* If iCurrentBlock>=iLeafEndBlock, this is an EOF condition. All leaf 
+    ** blocks have already been traversed.  */
+#ifdef CORRUPT_DB
+    assert( pReader->iCurrentBlock<=pReader->iLeafEndBlock || CORRUPT_DB );
+#endif
+    if( pReader->iCurrentBlock>=pReader->iLeafEndBlock ){
+      return SQLITE_OK;
+    }
+
+    rc = sqlite3Fts3ReadBlock(
+        p, ++pReader->iCurrentBlock, &pReader->aNode, &pReader->nNode, 
+        (bIncr ? &pReader->nPopulate : 0)
+    );
+    if( rc!=SQLITE_OK ) return rc;
+    assert( pReader->pBlob==0 );
+    if( bIncr && pReader->nPopulate<pReader->nNode ){
+      pReader->pBlob = p->pSegments;
+      p->pSegments = 0;
+    }
+    pNext = pReader->aNode;
+  }
+
+  assert( !fts3SegReaderIsPending(pReader) );
+
+  rc = fts3SegReaderRequire(pReader, pNext, FTS3_VARINT_MAX*2);
+  if( rc!=SQLITE_OK ) return rc;
+  
+  /* Because of the FTS3_NODE_PADDING bytes of padding, the following is 
+  ** safe (no risk of overread) even if the node data is corrupted. */
+  pNext += fts3GetVarint32(pNext, &nPrefix);
+  pNext += fts3GetVarint32(pNext, &nSuffix);
+  if( nSuffix<=0 
+   || (&pReader->aNode[pReader->nNode] - pNext)<nSuffix
+   || nPrefix>pReader->nTerm
+  ){
+    return FTS_CORRUPT_VTAB;
+  }
+
+  /* Both nPrefix and nSuffix were read by fts3GetVarint32() and so are
+  ** between 0 and 0x7FFFFFFF. But the sum of the two may cause integer
+  ** overflow - hence the (i64) casts.  */
+  if( (i64)nPrefix+nSuffix>(i64)pReader->nTermAlloc ){
+    i64 nNew = ((i64)nPrefix+nSuffix)*2;
+    char *zNew = sqlite3_realloc64(pReader->zTerm, nNew);
+    if( !zNew ){
+      return SQLITE_NOMEM;
+    }
+    pReader->zTerm = zNew;
+    pReader->nTermAlloc = nNew;
+  }
+
+  rc = fts3SegReaderRequire(pReader, pNext, nSuffix+FTS3_VARINT_MAX);
+  if( rc!=SQLITE_OK ) return rc;
+
+  memcpy(&pReader->zTerm[nPrefix], pNext, nSuffix);
+  pReader->nTerm = nPrefix+nSuffix;
+  pNext += nSuffix;
+  pNext += fts3GetVarint32(pNext, &pReader->nDoclist);
+  pReader->aDoclist = pNext;
+  pReader->pOffsetList = 0;
+
+  /* Check that the doclist does not appear to extend past the end of the
+  ** b-tree node. And that the final byte of the doclist is 0x00. If either 
+  ** of these statements is untrue, then the data structure is corrupt.
+  */
+  if( pReader->nDoclist > pReader->nNode-(pReader->aDoclist-pReader->aNode)
+   || (pReader->nPopulate==0 && pReader->aDoclist[pReader->nDoclist-1])
+   || pReader->nDoclist==0
+  ){
+    return FTS_CORRUPT_VTAB;
+  }
+  return SQLITE_OK;
+}
+
+/*
+** Set the SegReader to point to the first docid in the doclist associated
+** with the current term.
+*/
+static int fts3SegReaderFirstDocid(Fts3Table *pTab, Fts3SegReader *pReader){
+  int rc = SQLITE_OK;
+  assert( pReader->aDoclist );
+  assert( !pReader->pOffsetList );
+  if( pTab->bDescIdx && fts3SegReaderIsPending(pReader) ){
+    u8 bEof = 0;
+    pReader->iDocid = 0;
+    pReader->nOffsetList = 0;
+    sqlite3Fts3DoclistPrev(0,
+        pReader->aDoclist, pReader->nDoclist, &pReader->pOffsetList, 
+        &pReader->iDocid, &pReader->nOffsetList, &bEof
+    );
+  }else{
+    rc = fts3SegReaderRequire(pReader, pReader->aDoclist, FTS3_VARINT_MAX);
+    if( rc==SQLITE_OK ){
+      int n = sqlite3Fts3GetVarint(pReader->aDoclist, &pReader->iDocid);
+      pReader->pOffsetList = &pReader->aDoclist[n];
+    }
+  }
+  return rc;
+}
+
+/*
+** Advance the SegReader to point to the next docid in the doclist
+** associated with the current term.
+** 
+** If arguments ppOffsetList and pnOffsetList are not NULL, then 
+** *ppOffsetList is set to point to the first column-offset list
+** in the doclist entry (i.e. immediately past the docid varint).
+** *pnOffsetList is set to the length of the set of column-offset
+** lists, not including the nul-terminator byte. For example:
+*/
+static int fts3SegReaderNextDocid(
+  Fts3Table *pTab,
+  Fts3SegReader *pReader,         /* Reader to advance to next docid */
+  char **ppOffsetList,            /* OUT: Pointer to current position-list */
+  int *pnOffsetList               /* OUT: Length of *ppOffsetList in bytes */
+){
+  int rc = SQLITE_OK;
+  char *p = pReader->pOffsetList;
+  char c = 0;
+
+  assert( p );
+
+  if( pTab->bDescIdx && fts3SegReaderIsPending(pReader) ){
+    /* A pending-terms seg-reader for an FTS4 table that uses order=desc.
+    ** Pending-terms doclists are always built up in ascending order, so
+    ** we have to iterate through them backwards here. */
+    u8 bEof = 0;
+    if( ppOffsetList ){
+      *ppOffsetList = pReader->pOffsetList;
+      *pnOffsetList = pReader->nOffsetList - 1;
+    }
+    sqlite3Fts3DoclistPrev(0,
+        pReader->aDoclist, pReader->nDoclist, &p, &pReader->iDocid,
+        &pReader->nOffsetList, &bEof
+    );
+    if( bEof ){
+      pReader->pOffsetList = 0;
+    }else{
+      pReader->pOffsetList = p;
+    }
+  }else{
+    char *pEnd = &pReader->aDoclist[pReader->nDoclist];
+
+    /* Pointer p currently points at the first byte of an offset list. The
+    ** following block advances it to point one byte past the end of
+    ** the same offset list. */
+    while( 1 ){
+  
+      /* The following line of code (and the "p++" below the while() loop) is
+      ** normally all that is required to move pointer p to the desired 
+      ** position. The exception is if this node is being loaded from disk
+      ** incrementally and pointer "p" now points to the first byte past
+      ** the populated part of pReader->aNode[].
+      */
+      while( *p | c ) c = *p++ & 0x80;
+      assert( *p==0 );
+  
+      if( pReader->pBlob==0 || p<&pReader->aNode[pReader->nPopulate] ) break;
+      rc = fts3SegReaderIncrRead(pReader);
+      if( rc!=SQLITE_OK ) return rc;
+    }
+    p++;
+  
+    /* If required, populate the output variables with a pointer to and the
+    ** size of the previous offset-list.
+    */
+    if( ppOffsetList ){
+      *ppOffsetList = pReader->pOffsetList;
+      *pnOffsetList = (int)(p - pReader->pOffsetList - 1);
+    }
+
+    /* List may have been edited in place by fts3EvalNearTrim() */
+    while( p<pEnd && *p==0 ) p++;
+  
+    /* If there are no more entries in the doclist, set pOffsetList to
+    ** NULL. Otherwise, set Fts3SegReader.iDocid to the next docid and
+    ** Fts3SegReader.pOffsetList to point to the next offset list before
+    ** returning.
+    */
+    if( p>=pEnd ){
+      pReader->pOffsetList = 0;
+    }else{
+      rc = fts3SegReaderRequire(pReader, p, FTS3_VARINT_MAX);
+      if( rc==SQLITE_OK ){
+        u64 iDelta;
+        pReader->pOffsetList = p + sqlite3Fts3GetVarintU(p, &iDelta);
+        if( pTab->bDescIdx ){
+          pReader->iDocid = (i64)((u64)pReader->iDocid - iDelta);
+        }else{
+          pReader->iDocid = (i64)((u64)pReader->iDocid + iDelta);
+        }
+      }
+    }
+  }
+
+  return rc;
+}
+
+
+int sqlite3Fts3MsrOvfl(
+  Fts3Cursor *pCsr, 
+  Fts3MultiSegReader *pMsr,
+  int *pnOvfl
+){
+  Fts3Table *p = (Fts3Table*)pCsr->base.pVtab;
+  int nOvfl = 0;
+  int ii;
+  int rc = SQLITE_OK;
+  int pgsz = p->nPgsz;
+
+  assert( p->bFts4 );
+  assert( pgsz>0 );
+
+  for(ii=0; rc==SQLITE_OK && ii<pMsr->nSegment; ii++){
+    Fts3SegReader *pReader = pMsr->apSegment[ii];
+    if( !fts3SegReaderIsPending(pReader) 
+     && !fts3SegReaderIsRootOnly(pReader) 
+    ){
+      sqlite3_int64 jj;
+      for(jj=pReader->iStartBlock; jj<=pReader->iLeafEndBlock; jj++){
+        int nBlob;
+        rc = sqlite3Fts3ReadBlock(p, jj, 0, &nBlob, 0);
+        if( rc!=SQLITE_OK ) break;
+        if( (nBlob+35)>pgsz ){
+          nOvfl += (nBlob + 34)/pgsz;
+        }
+      }
+    }
+  }
+  *pnOvfl = nOvfl;
+  return rc;
+}
+
+/*
+** Free all allocations associated with the iterator passed as the 
+** second argument.
+*/
+void sqlite3Fts3SegReaderFree(Fts3SegReader *pReader){
+  if( pReader ){
+    sqlite3_free(pReader->zTerm);
+    if( !fts3SegReaderIsRootOnly(pReader) ){
+      sqlite3_free(pReader->aNode);
+    }
+    sqlite3_blob_close(pReader->pBlob);
+  }
+  sqlite3_free(pReader);
+}
+
+/*
+** Allocate a new SegReader object.
+*/
+int sqlite3Fts3SegReaderNew(
+  int iAge,                       /* Segment "age". */
+  int bLookup,                    /* True for a lookup only */
+  sqlite3_int64 iStartLeaf,       /* First leaf to traverse */
+  sqlite3_int64 iEndLeaf,         /* Final leaf to traverse */
+  sqlite3_int64 iEndBlock,        /* Final block of segment */
+  const char *zRoot,              /* Buffer containing root node */
+  int nRoot,                      /* Size of buffer containing root node */
+  Fts3SegReader **ppReader        /* OUT: Allocated Fts3SegReader */
+){
+  Fts3SegReader *pReader;         /* Newly allocated SegReader object */
+  int nExtra = 0;                 /* Bytes to allocate segment root node */
+
+  assert( zRoot!=0 || nRoot==0 );
+#ifdef CORRUPT_DB
+  assert( zRoot!=0 || CORRUPT_DB );
+#endif
+
+  if( iStartLeaf==0 ){
+    if( iEndLeaf!=0 ) return FTS_CORRUPT_VTAB;
+    nExtra = nRoot + FTS3_NODE_PADDING;
+  }
+
+  pReader = (Fts3SegReader *)sqlite3_malloc64(sizeof(Fts3SegReader) + nExtra);
+  if( !pReader ){
+    return SQLITE_NOMEM;
+  }
+  memset(pReader, 0, sizeof(Fts3SegReader));
+  pReader->iIdx = iAge;
+  pReader->bLookup = bLookup!=0;
+  pReader->iStartBlock = iStartLeaf;
+  pReader->iLeafEndBlock = iEndLeaf;
+  pReader->iEndBlock = iEndBlock;
+
+  if( nExtra ){
+    /* The entire segment is stored in the root node. */
+    pReader->aNode = (char *)&pReader[1];
+    pReader->rootOnly = 1;
+    pReader->nNode = nRoot;
+    if( nRoot ) memcpy(pReader->aNode, zRoot, nRoot);
+    memset(&pReader->aNode[nRoot], 0, FTS3_NODE_PADDING);
+  }else{
+    pReader->iCurrentBlock = iStartLeaf-1;
+  }
+  *ppReader = pReader;
+  return SQLITE_OK;
+}
+
+/*
+** This is a comparison function used as a qsort() callback when sorting
+** an array of pending terms by term. This occurs as part of flushing
+** the contents of the pending-terms hash table to the database.
+*/
+static int SQLITE_CDECL fts3CompareElemByTerm(
+  const void *lhs,
+  const void *rhs
+){
+  char *z1 = fts3HashKey(*(Fts3HashElem **)lhs);
+  char *z2 = fts3HashKey(*(Fts3HashElem **)rhs);
+  int n1 = fts3HashKeysize(*(Fts3HashElem **)lhs);
+  int n2 = fts3HashKeysize(*(Fts3HashElem **)rhs);
+
+  int n = (n1<n2 ? n1 : n2);
+  int c = memcmp(z1, z2, n);
+  if( c==0 ){
+    c = n1 - n2;
+  }
+  return c;
+}
+
+/*
+** This function is used to allocate an Fts3SegReader that iterates through
+** a subset of the terms stored in the Fts3Table.pendingTerms array.
+**
+** If the isPrefixIter parameter is zero, then the returned SegReader iterates
+** through each term in the pending-terms table. Or, if isPrefixIter is
+** non-zero, it iterates through each term and its prefixes. For example, if
+** the pending terms hash table contains the terms "sqlite", "mysql" and
+** "firebird", then the iterator visits the following 'terms' (in the order
+** shown):
+**
+**   f fi fir fire fireb firebi firebir firebird
+**   m my mys mysq mysql
+**   s sq sql sqli sqlit sqlite
+**
+** Whereas if isPrefixIter is zero, the terms visited are:
+**
+**   firebird mysql sqlite
+*/
+int sqlite3Fts3SegReaderPending(
+  Fts3Table *p,                   /* Virtual table handle */
+  int iIndex,                     /* Index for p->aIndex */
+  const char *zTerm,              /* Term to search for */
+  int nTerm,                      /* Size of buffer zTerm */
+  int bPrefix,                    /* True for a prefix iterator */
+  Fts3SegReader **ppReader        /* OUT: SegReader for pending-terms */
+){
+  Fts3SegReader *pReader = 0;     /* Fts3SegReader object to return */
+  Fts3HashElem *pE;               /* Iterator variable */
+  Fts3HashElem **aElem = 0;       /* Array of term hash entries to scan */
+  int nElem = 0;                  /* Size of array at aElem */
+  int rc = SQLITE_OK;             /* Return Code */
+  Fts3Hash *pHash;
+
+  pHash = &p->aIndex[iIndex].hPending;
+  if( bPrefix ){
+    int nAlloc = 0;               /* Size of allocated array at aElem */
+
+    for(pE=fts3HashFirst(pHash); pE; pE=fts3HashNext(pE)){
+      char *zKey = (char *)fts3HashKey(pE);
+      int nKey = fts3HashKeysize(pE);
+      if( nTerm==0 || (nKey>=nTerm && 0==memcmp(zKey, zTerm, nTerm)) ){
+        if( nElem==nAlloc ){
+          Fts3HashElem **aElem2;
+          nAlloc += 16;
+          aElem2 = (Fts3HashElem **)sqlite3_realloc64(
+              aElem, nAlloc*sizeof(Fts3HashElem *)
+          );
+          if( !aElem2 ){
+            rc = SQLITE_NOMEM;
+            nElem = 0;
+            break;
+          }
+          aElem = aElem2;
+        }
+
+        aElem[nElem++] = pE;
+      }
+    }
+
+    /* If more than one term matches the prefix, sort the Fts3HashElem
+    ** objects in term order using qsort(). This uses the same comparison
+    ** callback as is used when flushing terms to disk.
+    */
+    if( nElem>1 ){
+      qsort(aElem, nElem, sizeof(Fts3HashElem *), fts3CompareElemByTerm);
+    }
+
+  }else{
+    /* The query is a simple term lookup that matches at most one term in
+    ** the index. All that is required is a straight hash-lookup. 
+    **
+    ** Because the stack address of pE may be accessed via the aElem pointer
+    ** below, the "Fts3HashElem *pE" must be declared so that it is valid
+    ** within this entire function, not just this "else{...}" block.
+    */
+    pE = fts3HashFindElem(pHash, zTerm, nTerm);
+    if( pE ){
+      aElem = &pE;
+      nElem = 1;
+    }
+  }
+
+  if( nElem>0 ){
+    sqlite3_int64 nByte;
+    nByte = sizeof(Fts3SegReader) + (nElem+1)*sizeof(Fts3HashElem *);
+    pReader = (Fts3SegReader *)sqlite3_malloc64(nByte);
+    if( !pReader ){
+      rc = SQLITE_NOMEM;
+    }else{
+      memset(pReader, 0, nByte);
+      pReader->iIdx = 0x7FFFFFFF;
+      pReader->ppNextElem = (Fts3HashElem **)&pReader[1];
+      memcpy(pReader->ppNextElem, aElem, nElem*sizeof(Fts3HashElem *));
+    }
+  }
+
+  if( bPrefix ){
+    sqlite3_free(aElem);
+  }
+  *ppReader = pReader;
+  return rc;
+}
+
+/*
+** Compare the entries pointed to by two Fts3SegReader structures. 
+** Comparison is as follows:
+**
+**   1) EOF is greater than not EOF.
+**
+**   2) The current terms (if any) are compared using memcmp(). If one
+**      term is a prefix of another, the longer term is considered the
+**      larger.
+**
+**   3) By segment age. An older segment is considered larger.
+*/
+static int fts3SegReaderCmp(Fts3SegReader *pLhs, Fts3SegReader *pRhs){
+  int rc;
+  if( pLhs->aNode && pRhs->aNode ){
+    int rc2 = pLhs->nTerm - pRhs->nTerm;
+    if( rc2<0 ){
+      rc = memcmp(pLhs->zTerm, pRhs->zTerm, pLhs->nTerm);
+    }else{
+      rc = memcmp(pLhs->zTerm, pRhs->zTerm, pRhs->nTerm);
+    }
+    if( rc==0 ){
+      rc = rc2;
+    }
+  }else{
+    rc = (pLhs->aNode==0) - (pRhs->aNode==0);
+  }
+  if( rc==0 ){
+    rc = pRhs->iIdx - pLhs->iIdx;
+  }
+  assert_fts3_nc( rc!=0 );
+  return rc;
+}
+
+/*
+** A different comparison function for SegReader structures. In this
+** version, it is assumed that each SegReader points to an entry in
+** a doclist for identical terms. Comparison is made as follows:
+**
+**   1) EOF (end of doclist in this case) is greater than not EOF.
+**
+**   2) By current docid.
+**
+**   3) By segment age. An older segment is considered larger.
+*/
+static int fts3SegReaderDoclistCmp(Fts3SegReader *pLhs, Fts3SegReader *pRhs){
+  int rc = (pLhs->pOffsetList==0)-(pRhs->pOffsetList==0);
+  if( rc==0 ){
+    if( pLhs->iDocid==pRhs->iDocid ){
+      rc = pRhs->iIdx - pLhs->iIdx;
+    }else{
+      rc = (pLhs->iDocid > pRhs->iDocid) ? 1 : -1;
+    }
+  }
+  assert( pLhs->aNode && pRhs->aNode );
+  return rc;
+}
+static int fts3SegReaderDoclistCmpRev(Fts3SegReader *pLhs, Fts3SegReader *pRhs){
+  int rc = (pLhs->pOffsetList==0)-(pRhs->pOffsetList==0);
+  if( rc==0 ){
+    if( pLhs->iDocid==pRhs->iDocid ){
+      rc = pRhs->iIdx - pLhs->iIdx;
+    }else{
+      rc = (pLhs->iDocid < pRhs->iDocid) ? 1 : -1;
+    }
+  }
+  assert( pLhs->aNode && pRhs->aNode );
+  return rc;
+}
+
+/*
+** Compare the term that the Fts3SegReader object passed as the first argument
+** points to with the term specified by arguments zTerm and nTerm. 
+**
+** If the pSeg iterator is already at EOF, return 0. Otherwise, return
+** -ve if the pSeg term is less than zTerm/nTerm, 0 if the two terms are
+** equal, or +ve if the pSeg term is greater than zTerm/nTerm.
+*/
+static int fts3SegReaderTermCmp(
+  Fts3SegReader *pSeg,            /* Segment reader object */
+  const char *zTerm,              /* Term to compare to */
+  int nTerm                       /* Size of term zTerm in bytes */
+){
+  int res = 0;
+  if( pSeg->aNode ){
+    if( pSeg->nTerm>nTerm ){
+      res = memcmp(pSeg->zTerm, zTerm, nTerm);
+    }else{
+      res = memcmp(pSeg->zTerm, zTerm, pSeg->nTerm);
+    }
+    if( res==0 ){
+      res = pSeg->nTerm-nTerm;
+    }
+  }
+  return res;
+}
+
+/*
+** Argument apSegment is an array of nSegment elements. It is known that
+** the final (nSegment-nSuspect) members are already in sorted order
+** (according to the comparison function provided). This function shuffles
+** the array around until all entries are in sorted order.
+*/
+static void fts3SegReaderSort(
+  Fts3SegReader **apSegment,                     /* Array to sort entries of */
+  int nSegment,                                  /* Size of apSegment array */
+  int nSuspect,                                  /* Unsorted entry count */
+  int (*xCmp)(Fts3SegReader *, Fts3SegReader *)  /* Comparison function */
+){
+  int i;                          /* Iterator variable */
+
+  assert( nSuspect<=nSegment );
+
+  if( nSuspect==nSegment ) nSuspect--;
+  for(i=nSuspect-1; i>=0; i--){
+    int j;
+    for(j=i; j<(nSegment-1); j++){
+      Fts3SegReader *pTmp;
+      if( xCmp(apSegment[j], apSegment[j+1])<0 ) break;
+      pTmp = apSegment[j+1];
+      apSegment[j+1] = apSegment[j];
+      apSegment[j] = pTmp;
+    }
+  }
+
+#ifndef NDEBUG
+  /* Check that the list really is sorted now. */
+  for(i=0; i<(nSuspect-1); i++){
+    assert( xCmp(apSegment[i], apSegment[i+1])<0 );
+  }
+#endif
+}
+
+/* 
+** Insert a record into the %_segments table.
+*/
+static int fts3WriteSegment(
+  Fts3Table *p,                   /* Virtual table handle */
+  sqlite3_int64 iBlock,           /* Block id for new block */
+  char *z,                        /* Pointer to buffer containing block data */
+  int n                           /* Size of buffer z in bytes */
+){
+  sqlite3_stmt *pStmt;
+  int rc = fts3SqlStmt(p, SQL_INSERT_SEGMENTS, &pStmt, 0);
+  if( rc==SQLITE_OK ){
+    sqlite3_bind_int64(pStmt, 1, iBlock);
+    sqlite3_bind_blob(pStmt, 2, z, n, SQLITE_STATIC);
+    sqlite3_step(pStmt);
+    rc = sqlite3_reset(pStmt);
+    sqlite3_bind_null(pStmt, 2);
+  }
+  return rc;
+}
+
+/*
+** Find the largest relative level number in the table. If successful, set
+** *pnMax to this value and return SQLITE_OK. Otherwise, if an error occurs,
+** set *pnMax to zero and return an SQLite error code.
+*/
+int sqlite3Fts3MaxLevel(Fts3Table *p, int *pnMax){
+  int rc;
+  int mxLevel = 0;
+  sqlite3_stmt *pStmt = 0;
+
+  rc = fts3SqlStmt(p, SQL_SELECT_MXLEVEL, &pStmt, 0);
+  if( rc==SQLITE_OK ){
+    if( SQLITE_ROW==sqlite3_step(pStmt) ){
+      mxLevel = sqlite3_column_int(pStmt, 0);
+    }
+    rc = sqlite3_reset(pStmt);
+  }
+  *pnMax = mxLevel;
+  return rc;
+}
+
+/* 
+** Insert a record into the %_segdir table.
+*/
+static int fts3WriteSegdir(
+  Fts3Table *p,                   /* Virtual table handle */
+  sqlite3_int64 iLevel,           /* Value for "level" field (absolute level) */
+  int iIdx,                       /* Value for "idx" field */
+  sqlite3_int64 iStartBlock,      /* Value for "start_block" field */
+  sqlite3_int64 iLeafEndBlock,    /* Value for "leaves_end_block" field */
+  sqlite3_int64 iEndBlock,        /* Value for "end_block" field */
+  sqlite3_int64 nLeafData,        /* Bytes of leaf data in segment */
+  char *zRoot,                    /* Blob value for "root" field */
+  int nRoot                       /* Number of bytes in buffer zRoot */
+){
+  sqlite3_stmt *pStmt;
+  int rc = fts3SqlStmt(p, SQL_INSERT_SEGDIR, &pStmt, 0);
+  if( rc==SQLITE_OK ){
+    sqlite3_bind_int64(pStmt, 1, iLevel);
+    sqlite3_bind_int(pStmt, 2, iIdx);
+    sqlite3_bind_int64(pStmt, 3, iStartBlock);
+    sqlite3_bind_int64(pStmt, 4, iLeafEndBlock);
+    if( nLeafData==0 ){
+      sqlite3_bind_int64(pStmt, 5, iEndBlock);
+    }else{
+      char *zEnd = sqlite3_mprintf("%lld %lld", iEndBlock, nLeafData);
+      if( !zEnd ) return SQLITE_NOMEM;
+      sqlite3_bind_text(pStmt, 5, zEnd, -1, sqlite3_free);
+    }
+    sqlite3_bind_blob(pStmt, 6, zRoot, nRoot, SQLITE_STATIC);
+    sqlite3_step(pStmt);
+    rc = sqlite3_reset(pStmt);
+    sqlite3_bind_null(pStmt, 6);
+  }
+  return rc;
+}
+
+/*
+** Return the size of the common prefix (if any) shared by zPrev and
+** zNext, in bytes. For example, 
+**
+**   fts3PrefixCompress("abc", 3, "abcdef", 6)   // returns 3
+**   fts3PrefixCompress("abX", 3, "abcdef", 6)   // returns 2
+**   fts3PrefixCompress("abX", 3, "Xbcdef", 6)   // returns 0
+*/
+static int fts3PrefixCompress(
+  const char *zPrev,              /* Buffer containing previous term */
+  int nPrev,                      /* Size of buffer zPrev in bytes */
+  const char *zNext,              /* Buffer containing next term */
+  int nNext                       /* Size of buffer zNext in bytes */
+){
+  int n;
+  for(n=0; n<nPrev && n<nNext && zPrev[n]==zNext[n]; n++);
+  assert_fts3_nc( n<nNext );
+  return n;
+}
+
+/*
+** Add term zTerm to the SegmentNode. It is guaranteed that zTerm is larger
+** (according to memcmp) than the previous term.
+*/
+static int fts3NodeAddTerm(
+  Fts3Table *p,                   /* Virtual table handle */
+  SegmentNode **ppTree,           /* IN/OUT: SegmentNode handle */ 
+  int isCopyTerm,                 /* True if zTerm/nTerm is transient */
+  const char *zTerm,              /* Pointer to buffer containing term */
+  int nTerm                       /* Size of term in bytes */
+){
+  SegmentNode *pTree = *ppTree;
+  int rc;
+  SegmentNode *pNew;
+
+  /* First try to append the term to the current node. Return early if 
+  ** this is possible.
+  */
+  if( pTree ){
+    int nData = pTree->nData;     /* Current size of node in bytes */
+    int nReq = nData;             /* Required space after adding zTerm */
+    int nPrefix;                  /* Number of bytes of prefix compression */
+    int nSuffix;                  /* Suffix length */
+
+    nPrefix = fts3PrefixCompress(pTree->zTerm, pTree->nTerm, zTerm, nTerm);
+    nSuffix = nTerm-nPrefix;
+
+    /* If nSuffix is zero or less, then zTerm/nTerm must be a prefix of 
+    ** pWriter->zTerm/pWriter->nTerm. i.e. must be equal to or less than when
+    ** compared with BINARY collation. This indicates corruption.  */
+    if( nSuffix<=0 ) return FTS_CORRUPT_VTAB;
+
+    nReq += sqlite3Fts3VarintLen(nPrefix)+sqlite3Fts3VarintLen(nSuffix)+nSuffix;
+    if( nReq<=p->nNodeSize || !pTree->zTerm ){
+
+      if( nReq>p->nNodeSize ){
+        /* An unusual case: this is the first term to be added to the node
+        ** and the static node buffer (p->nNodeSize bytes) is not large
+        ** enough. Use a separately malloced buffer instead This wastes
+        ** p->nNodeSize bytes, but since this scenario only comes about when
+        ** the database contain two terms that share a prefix of almost 2KB, 
+        ** this is not expected to be a serious problem. 
+        */
+        assert( pTree->aData==(char *)&pTree[1] );
+        pTree->aData = (char *)sqlite3_malloc64(nReq);
+        if( !pTree->aData ){
+          return SQLITE_NOMEM;
+        }
+      }
+
+      if( pTree->zTerm ){
+        /* There is no prefix-length field for first term in a node */
+        nData += sqlite3Fts3PutVarint(&pTree->aData[nData], nPrefix);
+      }
+
+      nData += sqlite3Fts3PutVarint(&pTree->aData[nData], nSuffix);
+      memcpy(&pTree->aData[nData], &zTerm[nPrefix], nSuffix);
+      pTree->nData = nData + nSuffix;
+      pTree->nEntry++;
+
+      if( isCopyTerm ){
+        if( pTree->nMalloc<nTerm ){
+          char *zNew = sqlite3_realloc64(pTree->zMalloc, (i64)nTerm*2);
+          if( !zNew ){
+            return SQLITE_NOMEM;
+          }
+          pTree->nMalloc = nTerm*2;
+          pTree->zMalloc = zNew;
+        }
+        pTree->zTerm = pTree->zMalloc;
+        memcpy(pTree->zTerm, zTerm, nTerm);
+        pTree->nTerm = nTerm;
+      }else{
+        pTree->zTerm = (char *)zTerm;
+        pTree->nTerm = nTerm;
+      }
+      return SQLITE_OK;
+    }
+  }
+
+  /* If control flows to here, it was not possible to append zTerm to the
+  ** current node. Create a new node (a right-sibling of the current node).
+  ** If this is the first node in the tree, the term is added to it.
+  **
+  ** Otherwise, the term is not added to the new node, it is left empty for
+  ** now. Instead, the term is inserted into the parent of pTree. If pTree 
+  ** has no parent, one is created here.
+  */
+  pNew = (SegmentNode *)sqlite3_malloc64(sizeof(SegmentNode) + p->nNodeSize);
+  if( !pNew ){
+    return SQLITE_NOMEM;
+  }
+  memset(pNew, 0, sizeof(SegmentNode));
+  pNew->nData = 1 + FTS3_VARINT_MAX;
+  pNew->aData = (char *)&pNew[1];
+
+  if( pTree ){
+    SegmentNode *pParent = pTree->pParent;
+    rc = fts3NodeAddTerm(p, &pParent, isCopyTerm, zTerm, nTerm);
+    if( pTree->pParent==0 ){
+      pTree->pParent = pParent;
+    }
+    pTree->pRight = pNew;
+    pNew->pLeftmost = pTree->pLeftmost;
+    pNew->pParent = pParent;
+    pNew->zMalloc = pTree->zMalloc;
+    pNew->nMalloc = pTree->nMalloc;
+    pTree->zMalloc = 0;
+  }else{
+    pNew->pLeftmost = pNew;
+    rc = fts3NodeAddTerm(p, &pNew, isCopyTerm, zTerm, nTerm); 
+  }
+
+  *ppTree = pNew;
+  return rc;
+}
+
+/*
+** Helper function for fts3NodeWrite().
+*/
+static int fts3TreeFinishNode(
+  SegmentNode *pTree, 
+  int iHeight, 
+  sqlite3_int64 iLeftChild
+){
+  int nStart;
+  assert( iHeight>=1 && iHeight<128 );
+  nStart = FTS3_VARINT_MAX - sqlite3Fts3VarintLen(iLeftChild);
+  pTree->aData[nStart] = (char)iHeight;
+  sqlite3Fts3PutVarint(&pTree->aData[nStart+1], iLeftChild);
+  return nStart;
+}
+
+/*
+** Write the buffer for the segment node pTree and all of its peers to the
+** database. Then call this function recursively to write the parent of 
+** pTree and its peers to the database. 
+**
+** Except, if pTree is a root node, do not write it to the database. Instead,
+** set output variables *paRoot and *pnRoot to contain the root node.
+**
+** If successful, SQLITE_OK is returned and output variable *piLast is
+** set to the largest blockid written to the database (or zero if no
+** blocks were written to the db). Otherwise, an SQLite error code is 
+** returned.
+*/
+static int fts3NodeWrite(
+  Fts3Table *p,                   /* Virtual table handle */
+  SegmentNode *pTree,             /* SegmentNode handle */
+  int iHeight,                    /* Height of this node in tree */
+  sqlite3_int64 iLeaf,            /* Block id of first leaf node */
+  sqlite3_int64 iFree,            /* Block id of next free slot in %_segments */
+  sqlite3_int64 *piLast,          /* OUT: Block id of last entry written */
+  char **paRoot,                  /* OUT: Data for root node */
+  int *pnRoot                     /* OUT: Size of root node in bytes */
+){
+  int rc = SQLITE_OK;
+
+  if( !pTree->pParent ){
+    /* Root node of the tree. */
+    int nStart = fts3TreeFinishNode(pTree, iHeight, iLeaf);
+    *piLast = iFree-1;
+    *pnRoot = pTree->nData - nStart;
+    *paRoot = &pTree->aData[nStart];
+  }else{
+    SegmentNode *pIter;
+    sqlite3_int64 iNextFree = iFree;
+    sqlite3_int64 iNextLeaf = iLeaf;
+    for(pIter=pTree->pLeftmost; pIter && rc==SQLITE_OK; pIter=pIter->pRight){
+      int nStart = fts3TreeFinishNode(pIter, iHeight, iNextLeaf);
+      int nWrite = pIter->nData - nStart;
+  
+      rc = fts3WriteSegment(p, iNextFree, &pIter->aData[nStart], nWrite);
+      iNextFree++;
+      iNextLeaf += (pIter->nEntry+1);
+    }
+    if( rc==SQLITE_OK ){
+      assert( iNextLeaf==iFree );
+      rc = fts3NodeWrite(
+          p, pTree->pParent, iHeight+1, iFree, iNextFree, piLast, paRoot, pnRoot
+      );
+    }
+  }
+
+  return rc;
+}
+
+/*
+** Free all memory allocations associated with the tree pTree.
+*/
+static void fts3NodeFree(SegmentNode *pTree){
+  if( pTree ){
+    SegmentNode *p = pTree->pLeftmost;
+    fts3NodeFree(p->pParent);
+    while( p ){
+      SegmentNode *pRight = p->pRight;
+      if( p->aData!=(char *)&p[1] ){
+        sqlite3_free(p->aData);
+      }
+      assert( pRight==0 || p->zMalloc==0 );
+      sqlite3_free(p->zMalloc);
+      sqlite3_free(p);
+      p = pRight;
+    }
+  }
+}
+
+/*
+** Add a term to the segment being constructed by the SegmentWriter object
+** *ppWriter. When adding the first term to a segment, *ppWriter should
+** be passed NULL. This function will allocate a new SegmentWriter object
+** and return it via the input/output variable *ppWriter in this case.
+**
+** If successful, SQLITE_OK is returned. Otherwise, an SQLite error code.
+*/
+static int fts3SegWriterAdd(
+  Fts3Table *p,                   /* Virtual table handle */
+  SegmentWriter **ppWriter,       /* IN/OUT: SegmentWriter handle */ 
+  int isCopyTerm,                 /* True if buffer zTerm must be copied */
+  const char *zTerm,              /* Pointer to buffer containing term */
+  int nTerm,                      /* Size of term in bytes */
+  const char *aDoclist,           /* Pointer to buffer containing doclist */
+  int nDoclist                    /* Size of doclist in bytes */
+){
+  int nPrefix;                    /* Size of term prefix in bytes */
+  int nSuffix;                    /* Size of term suffix in bytes */
+  i64 nReq;                       /* Number of bytes required on leaf page */
+  int nData;
+  SegmentWriter *pWriter = *ppWriter;
+
+  if( !pWriter ){
+    int rc;
+    sqlite3_stmt *pStmt;
+
+    /* Allocate the SegmentWriter structure */
+    pWriter = (SegmentWriter *)sqlite3_malloc64(sizeof(SegmentWriter));
+    if( !pWriter ) return SQLITE_NOMEM;
+    memset(pWriter, 0, sizeof(SegmentWriter));
+    *ppWriter = pWriter;
+
+    /* Allocate a buffer in which to accumulate data */
+    pWriter->aData = (char *)sqlite3_malloc64(p->nNodeSize);
+    if( !pWriter->aData ) return SQLITE_NOMEM;
+    pWriter->nSize = p->nNodeSize;
+
+    /* Find the next free blockid in the %_segments table */
+    rc = fts3SqlStmt(p, SQL_NEXT_SEGMENTS_ID, &pStmt, 0);
+    if( rc!=SQLITE_OK ) return rc;
+    if( SQLITE_ROW==sqlite3_step(pStmt) ){
+      pWriter->iFree = sqlite3_column_int64(pStmt, 0);
+      pWriter->iFirst = pWriter->iFree;
+    }
+    rc = sqlite3_reset(pStmt);
+    if( rc!=SQLITE_OK ) return rc;
+  }
+  nData = pWriter->nData;
+
+  nPrefix = fts3PrefixCompress(pWriter->zTerm, pWriter->nTerm, zTerm, nTerm);
+  nSuffix = nTerm-nPrefix;
+
+  /* If nSuffix is zero or less, then zTerm/nTerm must be a prefix of 
+  ** pWriter->zTerm/pWriter->nTerm. i.e. must be equal to or less than when
+  ** compared with BINARY collation. This indicates corruption.  */
+  if( nSuffix<=0 ) return FTS_CORRUPT_VTAB;
+
+  /* Figure out how many bytes are required by this new entry */
+  nReq = sqlite3Fts3VarintLen(nPrefix) +    /* varint containing prefix size */
+    sqlite3Fts3VarintLen(nSuffix) +         /* varint containing suffix size */
+    nSuffix +                               /* Term suffix */
+    sqlite3Fts3VarintLen(nDoclist) +        /* Size of doclist */
+    nDoclist;                               /* Doclist data */
+
+  if( nData>0 && nData+nReq>p->nNodeSize ){
+    int rc;
+
+    /* The current leaf node is full. Write it out to the database. */
+    if( pWriter->iFree==LARGEST_INT64 ) return FTS_CORRUPT_VTAB;
+    rc = fts3WriteSegment(p, pWriter->iFree++, pWriter->aData, nData);
+    if( rc!=SQLITE_OK ) return rc;
+    p->nLeafAdd++;
+
+    /* Add the current term to the interior node tree. The term added to
+    ** the interior tree must:
+    **
+    **   a) be greater than the largest term on the leaf node just written
+    **      to the database (still available in pWriter->zTerm), and
+    **
+    **   b) be less than or equal to the term about to be added to the new
+    **      leaf node (zTerm/nTerm).
+    **
+    ** In other words, it must be the prefix of zTerm 1 byte longer than
+    ** the common prefix (if any) of zTerm and pWriter->zTerm.
+    */
+    assert( nPrefix<nTerm );
+    rc = fts3NodeAddTerm(p, &pWriter->pTree, isCopyTerm, zTerm, nPrefix+1);
+    if( rc!=SQLITE_OK ) return rc;
+
+    nData = 0;
+    pWriter->nTerm = 0;
+
+    nPrefix = 0;
+    nSuffix = nTerm;
+    nReq = 1 +                              /* varint containing prefix size */
+      sqlite3Fts3VarintLen(nTerm) +         /* varint containing suffix size */
+      nTerm +                               /* Term suffix */
+      sqlite3Fts3VarintLen(nDoclist) +      /* Size of doclist */
+      nDoclist;                             /* Doclist data */
+  }
+
+  /* Increase the total number of bytes written to account for the new entry. */
+  pWriter->nLeafData += nReq;
+
+  /* If the buffer currently allocated is too small for this entry, realloc
+  ** the buffer to make it large enough.
+  */
+  if( nReq>pWriter->nSize ){
+    char *aNew = sqlite3_realloc64(pWriter->aData, nReq);
+    if( !aNew ) return SQLITE_NOMEM;
+    pWriter->aData = aNew;
+    pWriter->nSize = nReq;
+  }
+  assert( nData+nReq<=pWriter->nSize );
+
+  /* Append the prefix-compressed term and doclist to the buffer. */
+  nData += sqlite3Fts3PutVarint(&pWriter->aData[nData], nPrefix);
+  nData += sqlite3Fts3PutVarint(&pWriter->aData[nData], nSuffix);
+  assert( nSuffix>0 );
+  memcpy(&pWriter->aData[nData], &zTerm[nPrefix], nSuffix);
+  nData += nSuffix;
+  nData += sqlite3Fts3PutVarint(&pWriter->aData[nData], nDoclist);
+  assert( nDoclist>0 );
+  memcpy(&pWriter->aData[nData], aDoclist, nDoclist);
+  pWriter->nData = nData + nDoclist;
+
+  /* Save the current term so that it can be used to prefix-compress the next.
+  ** If the isCopyTerm parameter is true, then the buffer pointed to by
+  ** zTerm is transient, so take a copy of the term data. Otherwise, just
+  ** store a copy of the pointer.
+  */
+  if( isCopyTerm ){
+    if( nTerm>pWriter->nMalloc ){
+      char *zNew = sqlite3_realloc64(pWriter->zMalloc, (i64)nTerm*2);
+      if( !zNew ){
+        return SQLITE_NOMEM;
+      }
+      pWriter->nMalloc = nTerm*2;
+      pWriter->zMalloc = zNew;
+      pWriter->zTerm = zNew;
+    }
+    assert( pWriter->zTerm==pWriter->zMalloc );
+    assert( nTerm>0 );
+    memcpy(pWriter->zTerm, zTerm, nTerm);
+  }else{
+    pWriter->zTerm = (char *)zTerm;
+  }
+  pWriter->nTerm = nTerm;
+
+  return SQLITE_OK;
+}
+
+/*
+** Flush all data associated with the SegmentWriter object pWriter to the
+** database. This function must be called after all terms have been added
+** to the segment using fts3SegWriterAdd(). If successful, SQLITE_OK is
+** returned. Otherwise, an SQLite error code.
+*/
+static int fts3SegWriterFlush(
+  Fts3Table *p,                   /* Virtual table handle */
+  SegmentWriter *pWriter,         /* SegmentWriter to flush to the db */
+  sqlite3_int64 iLevel,           /* Value for 'level' column of %_segdir */
+  int iIdx                        /* Value for 'idx' column of %_segdir */
+){
+  int rc;                         /* Return code */
+  if( pWriter->pTree ){
+    sqlite3_int64 iLast = 0;      /* Largest block id written to database */
+    sqlite3_int64 iLastLeaf;      /* Largest leaf block id written to db */
+    char *zRoot = NULL;           /* Pointer to buffer containing root node */
+    int nRoot = 0;                /* Size of buffer zRoot */
+
+    iLastLeaf = pWriter->iFree;
+    rc = fts3WriteSegment(p, pWriter->iFree++, pWriter->aData, pWriter->nData);
+    if( rc==SQLITE_OK ){
+      rc = fts3NodeWrite(p, pWriter->pTree, 1,
+          pWriter->iFirst, pWriter->iFree, &iLast, &zRoot, &nRoot);
+    }
+    if( rc==SQLITE_OK ){
+      rc = fts3WriteSegdir(p, iLevel, iIdx, 
+          pWriter->iFirst, iLastLeaf, iLast, pWriter->nLeafData, zRoot, nRoot);
+    }
+  }else{
+    /* The entire tree fits on the root node. Write it to the segdir table. */
+    rc = fts3WriteSegdir(p, iLevel, iIdx, 
+        0, 0, 0, pWriter->nLeafData, pWriter->aData, pWriter->nData);
+  }
+  p->nLeafAdd++;
+  return rc;
+}
+
+/*
+** Release all memory held by the SegmentWriter object passed as the 
+** first argument.
+*/
+static void fts3SegWriterFree(SegmentWriter *pWriter){
+  if( pWriter ){
+    sqlite3_free(pWriter->aData);
+    sqlite3_free(pWriter->zMalloc);
+    fts3NodeFree(pWriter->pTree);
+    sqlite3_free(pWriter);
+  }
+}
+
+/*
+** The first value in the apVal[] array is assumed to contain an integer.
+** This function tests if there exist any documents with docid values that
+** are different from that integer. i.e. if deleting the document with docid
+** pRowid would mean the FTS3 table were empty.
+**
+** If successful, *pisEmpty is set to true if the table is empty except for
+** document pRowid, or false otherwise, and SQLITE_OK is returned. If an
+** error occurs, an SQLite error code is returned.
+*/
+static int fts3IsEmpty(Fts3Table *p, sqlite3_value *pRowid, int *pisEmpty){
+  sqlite3_stmt *pStmt;
+  int rc;
+  if( p->zContentTbl ){
+    /* If using the content=xxx option, assume the table is never empty */
+    *pisEmpty = 0;
+    rc = SQLITE_OK;
+  }else{
+    rc = fts3SqlStmt(p, SQL_IS_EMPTY, &pStmt, &pRowid);
+    if( rc==SQLITE_OK ){
+      if( SQLITE_ROW==sqlite3_step(pStmt) ){
+        *pisEmpty = sqlite3_column_int(pStmt, 0);
+      }
+      rc = sqlite3_reset(pStmt);
+    }
+  }
+  return rc;
+}
+
+/*
+** Set *pnMax to the largest segment level in the database for the index
+** iIndex.
+**
+** Segment levels are stored in the 'level' column of the %_segdir table.
+**
+** Return SQLITE_OK if successful, or an SQLite error code if not.
+*/
+static int fts3SegmentMaxLevel(
+  Fts3Table *p, 
+  int iLangid,
+  int iIndex, 
+  sqlite3_int64 *pnMax
+){
+  sqlite3_stmt *pStmt;
+  int rc;
+  assert( iIndex>=0 && iIndex<p->nIndex );
+
+  /* Set pStmt to the compiled version of:
+  **
+  **   SELECT max(level) FROM %Q.'%q_segdir' WHERE level BETWEEN ? AND ?
+  **
+  ** (1024 is actually the value of macro FTS3_SEGDIR_PREFIXLEVEL_STR).
+  */
+  rc = fts3SqlStmt(p, SQL_SELECT_SEGDIR_MAX_LEVEL, &pStmt, 0);
+  if( rc!=SQLITE_OK ) return rc;
+  sqlite3_bind_int64(pStmt, 1, getAbsoluteLevel(p, iLangid, iIndex, 0));
+  sqlite3_bind_int64(pStmt, 2, 
+      getAbsoluteLevel(p, iLangid, iIndex, FTS3_SEGDIR_MAXLEVEL-1)
+  );
+  if( SQLITE_ROW==sqlite3_step(pStmt) ){
+    *pnMax = sqlite3_column_int64(pStmt, 0);
+  }
+  return sqlite3_reset(pStmt);
+}
+
+/*
+** iAbsLevel is an absolute level that may be assumed to exist within
+** the database. This function checks if it is the largest level number
+** within its index. Assuming no error occurs, *pbMax is set to 1 if
+** iAbsLevel is indeed the largest level, or 0 otherwise, and SQLITE_OK
+** is returned. If an error occurs, an error code is returned and the
+** final value of *pbMax is undefined.
+*/
+static int fts3SegmentIsMaxLevel(Fts3Table *p, i64 iAbsLevel, int *pbMax){
+
+  /* Set pStmt to the compiled version of:
+  **
+  **   SELECT max(level) FROM %Q.'%q_segdir' WHERE level BETWEEN ? AND ?
+  **
+  ** (1024 is actually the value of macro FTS3_SEGDIR_PREFIXLEVEL_STR).
+  */
+  sqlite3_stmt *pStmt;
+  int rc = fts3SqlStmt(p, SQL_SELECT_SEGDIR_MAX_LEVEL, &pStmt, 0);
+  if( rc!=SQLITE_OK ) return rc;
+  sqlite3_bind_int64(pStmt, 1, iAbsLevel+1);
+  sqlite3_bind_int64(pStmt, 2, 
+      (((u64)iAbsLevel/FTS3_SEGDIR_MAXLEVEL)+1) * FTS3_SEGDIR_MAXLEVEL
+  );
+
+  *pbMax = 0;
+  if( SQLITE_ROW==sqlite3_step(pStmt) ){
+    *pbMax = sqlite3_column_type(pStmt, 0)==SQLITE_NULL;
+  }
+  return sqlite3_reset(pStmt);
+}
+
+/*
+** Delete all entries in the %_segments table associated with the segment
+** opened with seg-reader pSeg. This function does not affect the contents
+** of the %_segdir table.
+*/
+static int fts3DeleteSegment(
+  Fts3Table *p,                   /* FTS table handle */
+  Fts3SegReader *pSeg             /* Segment to delete */
+){
+  int rc = SQLITE_OK;             /* Return code */
+  if( pSeg->iStartBlock ){
+    sqlite3_stmt *pDelete;        /* SQL statement to delete rows */
+    rc = fts3SqlStmt(p, SQL_DELETE_SEGMENTS_RANGE, &pDelete, 0);
+    if( rc==SQLITE_OK ){
+      sqlite3_bind_int64(pDelete, 1, pSeg->iStartBlock);
+      sqlite3_bind_int64(pDelete, 2, pSeg->iEndBlock);
+      sqlite3_step(pDelete);
+      rc = sqlite3_reset(pDelete);
+    }
+  }
+  return rc;
+}
+
+/*
+** This function is used after merging multiple segments into a single large
+** segment to delete the old, now redundant, segment b-trees. Specifically,
+** it:
+** 
+**   1) Deletes all %_segments entries for the segments associated with 
+**      each of the SegReader objects in the array passed as the third 
+**      argument, and
+**
+**   2) deletes all %_segdir entries with level iLevel, or all %_segdir
+**      entries regardless of level if (iLevel<0).
+**
+** SQLITE_OK is returned if successful, otherwise an SQLite error code.
+*/
+static int fts3DeleteSegdir(
+  Fts3Table *p,                   /* Virtual table handle */
+  int iLangid,                    /* Language id */
+  int iIndex,                     /* Index for p->aIndex */
+  int iLevel,                     /* Level of %_segdir entries to delete */
+  Fts3SegReader **apSegment,      /* Array of SegReader objects */
+  int nReader                     /* Size of array apSegment */
+){
+  int rc = SQLITE_OK;             /* Return Code */
+  int i;                          /* Iterator variable */
+  sqlite3_stmt *pDelete = 0;      /* SQL statement to delete rows */
+
+  for(i=0; rc==SQLITE_OK && i<nReader; i++){
+    rc = fts3DeleteSegment(p, apSegment[i]);
+  }
+  if( rc!=SQLITE_OK ){
+    return rc;
+  }
+
+  assert( iLevel>=0 || iLevel==FTS3_SEGCURSOR_ALL );
+  if( iLevel==FTS3_SEGCURSOR_ALL ){
+    rc = fts3SqlStmt(p, SQL_DELETE_SEGDIR_RANGE, &pDelete, 0);
+    if( rc==SQLITE_OK ){
+      sqlite3_bind_int64(pDelete, 1, getAbsoluteLevel(p, iLangid, iIndex, 0));
+      sqlite3_bind_int64(pDelete, 2, 
+          getAbsoluteLevel(p, iLangid, iIndex, FTS3_SEGDIR_MAXLEVEL-1)
+      );
+    }
+  }else{
+    rc = fts3SqlStmt(p, SQL_DELETE_SEGDIR_LEVEL, &pDelete, 0);
+    if( rc==SQLITE_OK ){
+      sqlite3_bind_int64(
+          pDelete, 1, getAbsoluteLevel(p, iLangid, iIndex, iLevel)
+      );
+    }
+  }
+
+  if( rc==SQLITE_OK ){
+    sqlite3_step(pDelete);
+    rc = sqlite3_reset(pDelete);
+  }
+
+  return rc;
+}
+
+/*
+** When this function is called, buffer *ppList (size *pnList bytes) contains 
+** a position list that may (or may not) feature multiple columns. This
+** function adjusts the pointer *ppList and the length *pnList so that they
+** identify the subset of the position list that corresponds to column iCol.
+**
+** If there are no entries in the input position list for column iCol, then
+** *pnList is set to zero before returning.
+**
+** If parameter bZero is non-zero, then any part of the input list following
+** the end of the output list is zeroed before returning.
+*/
+static void fts3ColumnFilter(
+  int iCol,                       /* Column to filter on */
+  int bZero,                      /* Zero out anything following *ppList */
+  char **ppList,                  /* IN/OUT: Pointer to position list */
+  int *pnList                     /* IN/OUT: Size of buffer *ppList in bytes */
+){
+  char *pList = *ppList;
+  int nList = *pnList;
+  char *pEnd = &pList[nList];
+  int iCurrent = 0;
+  char *p = pList;
+
+  assert( iCol>=0 );
+  while( 1 ){
+    char c = 0;
+    while( p<pEnd && (c | *p)&0xFE ) c = *p++ & 0x80;
+  
+    if( iCol==iCurrent ){
+      nList = (int)(p - pList);
+      break;
+    }
+
+    nList -= (int)(p - pList);
+    pList = p;
+    if( nList<=0 ){
+      break;
+    }
+    p = &pList[1];
+    p += fts3GetVarint32(p, &iCurrent);
+  }
+
+  if( bZero && (pEnd - &pList[nList])>0){
+    memset(&pList[nList], 0, pEnd - &pList[nList]);
+  }
+  *ppList = pList;
+  *pnList = nList;
+}
+
+/*
+** Cache data in the Fts3MultiSegReader.aBuffer[] buffer (overwriting any
+** existing data). Grow the buffer if required.
+**
+** If successful, return SQLITE_OK. Otherwise, if an OOM error is encountered
+** trying to resize the buffer, return SQLITE_NOMEM.
+*/
+static int fts3MsrBufferData(
+  Fts3MultiSegReader *pMsr,       /* Multi-segment-reader handle */
+  char *pList,
+  i64 nList
+){
+  if( (nList+FTS3_NODE_PADDING)>pMsr->nBuffer ){
+    char *pNew;
+    int nNew = nList*2 + FTS3_NODE_PADDING;
+    pNew = (char *)sqlite3_realloc64(pMsr->aBuffer, nNew);
+    if( !pNew ) return SQLITE_NOMEM;
+    pMsr->aBuffer = pNew;
+    pMsr->nBuffer = nNew;
+  }
+
+  assert( nList>0 );
+  memcpy(pMsr->aBuffer, pList, nList);
+  memset(&pMsr->aBuffer[nList], 0, FTS3_NODE_PADDING);
+  return SQLITE_OK;
+}
+
+int sqlite3Fts3MsrIncrNext(
+  Fts3Table *p,                   /* Virtual table handle */
+  Fts3MultiSegReader *pMsr,       /* Multi-segment-reader handle */
+  sqlite3_int64 *piDocid,         /* OUT: Docid value */
+  char **paPoslist,               /* OUT: Pointer to position list */
+  int *pnPoslist                  /* OUT: Size of position list in bytes */
+){
+  int nMerge = pMsr->nAdvance;
+  Fts3SegReader **apSegment = pMsr->apSegment;
+  int (*xCmp)(Fts3SegReader *, Fts3SegReader *) = (
+    p->bDescIdx ? fts3SegReaderDoclistCmpRev : fts3SegReaderDoclistCmp
+  );
+
+  if( nMerge==0 ){
+    *paPoslist = 0;
+    return SQLITE_OK;
+  }
+
+  while( 1 ){
+    Fts3SegReader *pSeg;
+    pSeg = pMsr->apSegment[0];
+
+    if( pSeg->pOffsetList==0 ){
+      *paPoslist = 0;
+      break;
+    }else{
+      int rc;
+      char *pList;
+      int nList;
+      int j;
+      sqlite3_int64 iDocid = apSegment[0]->iDocid;
+
+      rc = fts3SegReaderNextDocid(p, apSegment[0], &pList, &nList);
+      j = 1;
+      while( rc==SQLITE_OK 
+        && j<nMerge
+        && apSegment[j]->pOffsetList
+        && apSegment[j]->iDocid==iDocid
+      ){
+        rc = fts3SegReaderNextDocid(p, apSegment[j], 0, 0);
+        j++;
+      }
+      if( rc!=SQLITE_OK ) return rc;
+      fts3SegReaderSort(pMsr->apSegment, nMerge, j, xCmp);
+
+      if( nList>0 && fts3SegReaderIsPending(apSegment[0]) ){
+        rc = fts3MsrBufferData(pMsr, pList, (i64)nList+1);
+        if( rc!=SQLITE_OK ) return rc;
+        assert( (pMsr->aBuffer[nList] & 0xFE)==0x00 );
+        pList = pMsr->aBuffer;
+      }
+
+      if( pMsr->iColFilter>=0 ){
+        fts3ColumnFilter(pMsr->iColFilter, 1, &pList, &nList);
+      }
+
+      if( nList>0 ){
+        *paPoslist = pList;
+        *piDocid = iDocid;
+        *pnPoslist = nList;
+        break;
+      }
+    }
+  }
+
+  return SQLITE_OK;
+}
+
+static int fts3SegReaderStart(
+  Fts3Table *p,                   /* Virtual table handle */
+  Fts3MultiSegReader *pCsr,       /* Cursor object */
+  const char *zTerm,              /* Term searched for (or NULL) */
+  int nTerm                       /* Length of zTerm in bytes */
+){
+  int i;
+  int nSeg = pCsr->nSegment;
+
+  /* If the Fts3SegFilter defines a specific term (or term prefix) to search 
+  ** for, then advance each segment iterator until it points to a term of
+  ** equal or greater value than the specified term. This prevents many
+  ** unnecessary merge/sort operations for the case where single segment
+  ** b-tree leaf nodes contain more than one term.
+  */
+  for(i=0; pCsr->bRestart==0 && i<pCsr->nSegment; i++){
+    int res = 0;
+    Fts3SegReader *pSeg = pCsr->apSegment[i];
+    do {
+      int rc = fts3SegReaderNext(p, pSeg, 0);
+      if( rc!=SQLITE_OK ) return rc;
+    }while( zTerm && (res = fts3SegReaderTermCmp(pSeg, zTerm, nTerm))<0 );
+
+    if( pSeg->bLookup && res!=0 ){
+      fts3SegReaderSetEof(pSeg);
+    }
+  }
+  fts3SegReaderSort(pCsr->apSegment, nSeg, nSeg, fts3SegReaderCmp);
+
+  return SQLITE_OK;
+}
+
+int sqlite3Fts3SegReaderStart(
+  Fts3Table *p,                   /* Virtual table handle */
+  Fts3MultiSegReader *pCsr,       /* Cursor object */
+  Fts3SegFilter *pFilter          /* Restrictions on range of iteration */
+){
+  pCsr->pFilter = pFilter;
+  return fts3SegReaderStart(p, pCsr, pFilter->zTerm, pFilter->nTerm);
+}
+
+int sqlite3Fts3MsrIncrStart(
+  Fts3Table *p,                   /* Virtual table handle */
+  Fts3MultiSegReader *pCsr,       /* Cursor object */
+  int iCol,                       /* Column to match on. */
+  const char *zTerm,              /* Term to iterate through a doclist for */
+  int nTerm                       /* Number of bytes in zTerm */
+){
+  int i;
+  int rc;
+  int nSegment = pCsr->nSegment;
+  int (*xCmp)(Fts3SegReader *, Fts3SegReader *) = (
+    p->bDescIdx ? fts3SegReaderDoclistCmpRev : fts3SegReaderDoclistCmp
+  );
+
+  assert( pCsr->pFilter==0 );
+  assert( zTerm && nTerm>0 );
+
+  /* Advance each segment iterator until it points to the term zTerm/nTerm. */
+  rc = fts3SegReaderStart(p, pCsr, zTerm, nTerm);
+  if( rc!=SQLITE_OK ) return rc;
+
+  /* Determine how many of the segments actually point to zTerm/nTerm. */
+  for(i=0; i<nSegment; i++){
+    Fts3SegReader *pSeg = pCsr->apSegment[i];
+    if( !pSeg->aNode || fts3SegReaderTermCmp(pSeg, zTerm, nTerm) ){
+      break;
+    }
+  }
+  pCsr->nAdvance = i;
+
+  /* Advance each of the segments to point to the first docid. */
+  for(i=0; i<pCsr->nAdvance; i++){
+    rc = fts3SegReaderFirstDocid(p, pCsr->apSegment[i]);
+    if( rc!=SQLITE_OK ) return rc;
+  }
+  fts3SegReaderSort(pCsr->apSegment, i, i, xCmp);
+
+  assert( iCol<0 || iCol<p->nColumn );
+  pCsr->iColFilter = iCol;
+
+  return SQLITE_OK;
+}
+
+/*
+** This function is called on a MultiSegReader that has been started using
+** sqlite3Fts3MsrIncrStart(). One or more calls to MsrIncrNext() may also
+** have been made. Calling this function puts the MultiSegReader in such
+** a state that if the next two calls are:
+**
+**   sqlite3Fts3SegReaderStart()
+**   sqlite3Fts3SegReaderStep()
+**
+** then the entire doclist for the term is available in 
+** MultiSegReader.aDoclist/nDoclist.
+*/
+int sqlite3Fts3MsrIncrRestart(Fts3MultiSegReader *pCsr){
+  int i;                          /* Used to iterate through segment-readers */
+
+  assert( pCsr->zTerm==0 );
+  assert( pCsr->nTerm==0 );
+  assert( pCsr->aDoclist==0 );
+  assert( pCsr->nDoclist==0 );
+
+  pCsr->nAdvance = 0;
+  pCsr->bRestart = 1;
+  for(i=0; i<pCsr->nSegment; i++){
+    pCsr->apSegment[i]->pOffsetList = 0;
+    pCsr->apSegment[i]->nOffsetList = 0;
+    pCsr->apSegment[i]->iDocid = 0;
+  }
+
+  return SQLITE_OK;
+}
+
+static int fts3GrowSegReaderBuffer(Fts3MultiSegReader *pCsr, i64 nReq){
+  if( nReq>pCsr->nBuffer ){
+    char *aNew;
+    pCsr->nBuffer = nReq*2;
+    aNew = sqlite3_realloc64(pCsr->aBuffer, pCsr->nBuffer);
+    if( !aNew ){
+      return SQLITE_NOMEM;
+    }
+    pCsr->aBuffer = aNew;
+  }
+  return SQLITE_OK;
+}
+
+
+int sqlite3Fts3SegReaderStep(
+  Fts3Table *p,                   /* Virtual table handle */
+  Fts3MultiSegReader *pCsr        /* Cursor object */
+){
+  int rc = SQLITE_OK;
+
+  int isIgnoreEmpty =  (pCsr->pFilter->flags & FTS3_SEGMENT_IGNORE_EMPTY);
+  int isRequirePos =   (pCsr->pFilter->flags & FTS3_SEGMENT_REQUIRE_POS);
+  int isColFilter =    (pCsr->pFilter->flags & FTS3_SEGMENT_COLUMN_FILTER);
+  int isPrefix =       (pCsr->pFilter->flags & FTS3_SEGMENT_PREFIX);
+  int isScan =         (pCsr->pFilter->flags & FTS3_SEGMENT_SCAN);
+  int isFirst =        (pCsr->pFilter->flags & FTS3_SEGMENT_FIRST);
+
+  Fts3SegReader **apSegment = pCsr->apSegment;
+  int nSegment = pCsr->nSegment;
+  Fts3SegFilter *pFilter = pCsr->pFilter;
+  int (*xCmp)(Fts3SegReader *, Fts3SegReader *) = (
+    p->bDescIdx ? fts3SegReaderDoclistCmpRev : fts3SegReaderDoclistCmp
+  );
+
+  if( pCsr->nSegment==0 ) return SQLITE_OK;
+
+  do {
+    int nMerge;
+    int i;
+  
+    /* Advance the first pCsr->nAdvance entries in the apSegment[] array
+    ** forward. Then sort the list in order of current term again.  
+    */
+    for(i=0; i<pCsr->nAdvance; i++){
+      Fts3SegReader *pSeg = apSegment[i];
+      if( pSeg->bLookup ){
+        fts3SegReaderSetEof(pSeg);
+      }else{
+        rc = fts3SegReaderNext(p, pSeg, 0);
+      }
+      if( rc!=SQLITE_OK ) return rc;
+    }
+    fts3SegReaderSort(apSegment, nSegment, pCsr->nAdvance, fts3SegReaderCmp);
+    pCsr->nAdvance = 0;
+
+    /* If all the seg-readers are at EOF, we're finished. return SQLITE_OK. */
+    assert( rc==SQLITE_OK );
+    if( apSegment[0]->aNode==0 ) break;
+
+    pCsr->nTerm = apSegment[0]->nTerm;
+    pCsr->zTerm = apSegment[0]->zTerm;
+
+    /* If this is a prefix-search, and if the term that apSegment[0] points
+    ** to does not share a suffix with pFilter->zTerm/nTerm, then all 
+    ** required callbacks have been made. In this case exit early.
+    **
+    ** Similarly, if this is a search for an exact match, and the first term
+    ** of segment apSegment[0] is not a match, exit early.
+    */
+    if( pFilter->zTerm && !isScan ){
+      if( pCsr->nTerm<pFilter->nTerm 
+       || (!isPrefix && pCsr->nTerm>pFilter->nTerm)
+       || memcmp(pCsr->zTerm, pFilter->zTerm, pFilter->nTerm) 
+      ){
+        break;
+      }
+    }
+
+    nMerge = 1;
+    while( nMerge<nSegment 
+        && apSegment[nMerge]->aNode
+        && apSegment[nMerge]->nTerm==pCsr->nTerm 
+        && 0==memcmp(pCsr->zTerm, apSegment[nMerge]->zTerm, pCsr->nTerm)
+    ){
+      nMerge++;
+    }
+
+    assert( isIgnoreEmpty || (isRequirePos && !isColFilter) );
+    if( nMerge==1 
+     && !isIgnoreEmpty 
+     && !isFirst 
+     && (p->bDescIdx==0 || fts3SegReaderIsPending(apSegment[0])==0)
+    ){
+      pCsr->nDoclist = apSegment[0]->nDoclist;
+      if( fts3SegReaderIsPending(apSegment[0]) ){
+        rc = fts3MsrBufferData(pCsr, apSegment[0]->aDoclist,
+                               (i64)pCsr->nDoclist);
+        pCsr->aDoclist = pCsr->aBuffer;
+      }else{
+        pCsr->aDoclist = apSegment[0]->aDoclist;
+      }
+      if( rc==SQLITE_OK ) rc = SQLITE_ROW;
+    }else{
+      int nDoclist = 0;           /* Size of doclist */
+      sqlite3_int64 iPrev = 0;    /* Previous docid stored in doclist */
+
+      /* The current term of the first nMerge entries in the array
+      ** of Fts3SegReader objects is the same. The doclists must be merged
+      ** and a single term returned with the merged doclist.
+      */
+      for(i=0; i<nMerge; i++){
+        fts3SegReaderFirstDocid(p, apSegment[i]);
+      }
+      fts3SegReaderSort(apSegment, nMerge, nMerge, xCmp);
+      while( apSegment[0]->pOffsetList ){
+        int j;                    /* Number of segments that share a docid */
+        char *pList = 0;
+        int nList = 0;
+        int nByte;
+        sqlite3_int64 iDocid = apSegment[0]->iDocid;
+        fts3SegReaderNextDocid(p, apSegment[0], &pList, &nList);
+        j = 1;
+        while( j<nMerge
+            && apSegment[j]->pOffsetList
+            && apSegment[j]->iDocid==iDocid
+        ){
+          fts3SegReaderNextDocid(p, apSegment[j], 0, 0);
+          j++;
+        }
+
+        if( isColFilter ){
+          fts3ColumnFilter(pFilter->iCol, 0, &pList, &nList);
+        }
+
+        if( !isIgnoreEmpty || nList>0 ){
+
+          /* Calculate the 'docid' delta value to write into the merged 
+          ** doclist. */
+          sqlite3_int64 iDelta;
+          if( p->bDescIdx && nDoclist>0 ){
+            if( iPrev<=iDocid ) return FTS_CORRUPT_VTAB;
+            iDelta = (i64)((u64)iPrev - (u64)iDocid);
+          }else{
+            if( nDoclist>0 && iPrev>=iDocid ) return FTS_CORRUPT_VTAB;
+            iDelta = (i64)((u64)iDocid - (u64)iPrev);
+          }
+
+          nByte = sqlite3Fts3VarintLen(iDelta) + (isRequirePos?nList+1:0);
+
+          rc = fts3GrowSegReaderBuffer(pCsr, 
+                                   (i64)nByte+nDoclist+FTS3_NODE_PADDING);
+          if( rc ) return rc;
+
+          if( isFirst ){
+            char *a = &pCsr->aBuffer[nDoclist];
+            int nWrite;
+           
+            nWrite = sqlite3Fts3FirstFilter(iDelta, pList, nList, a);
+            if( nWrite ){
+              iPrev = iDocid;
+              nDoclist += nWrite;
+            }
+          }else{
+            nDoclist += sqlite3Fts3PutVarint(&pCsr->aBuffer[nDoclist], iDelta);
+            iPrev = iDocid;
+            if( isRequirePos ){
+              memcpy(&pCsr->aBuffer[nDoclist], pList, nList);
+              nDoclist += nList;
+              pCsr->aBuffer[nDoclist++] = '\0';
+            }
+          }
+        }
+
+        fts3SegReaderSort(apSegment, nMerge, j, xCmp);
+      }
+      if( nDoclist>0 ){
+        rc = fts3GrowSegReaderBuffer(pCsr, (i64)nDoclist+FTS3_NODE_PADDING);
+        if( rc ) return rc;
+        memset(&pCsr->aBuffer[nDoclist], 0, FTS3_NODE_PADDING);
+        pCsr->aDoclist = pCsr->aBuffer;
+        pCsr->nDoclist = nDoclist;
+        rc = SQLITE_ROW;
+      }
+    }
+    pCsr->nAdvance = nMerge;
+  }while( rc==SQLITE_OK );
+
+  return rc;
+}
+
+
+void sqlite3Fts3SegReaderFinish(
+  Fts3MultiSegReader *pCsr       /* Cursor object */
+){
+  if( pCsr ){
+    int i;
+    for(i=0; i<pCsr->nSegment; i++){
+      sqlite3Fts3SegReaderFree(pCsr->apSegment[i]);
+    }
+    sqlite3_free(pCsr->apSegment);
+    sqlite3_free(pCsr->aBuffer);
+
+    pCsr->nSegment = 0;
+    pCsr->apSegment = 0;
+    pCsr->aBuffer = 0;
+  }
+}
+
+/*
+** Decode the "end_block" field, selected by column iCol of the SELECT 
+** statement passed as the first argument. 
+**
+** The "end_block" field may contain either an integer, or a text field
+** containing the text representation of two non-negative integers separated 
+** by one or more space (0x20) characters. In the first case, set *piEndBlock 
+** to the integer value and *pnByte to zero before returning. In the second, 
+** set *piEndBlock to the first value and *pnByte to the second.
+*/
+static void fts3ReadEndBlockField(
+  sqlite3_stmt *pStmt, 
+  int iCol, 
+  i64 *piEndBlock,
+  i64 *pnByte
+){
+  const unsigned char *zText = sqlite3_column_text(pStmt, iCol);
+  if( zText ){
+    int i;
+    int iMul = 1;
+    u64 iVal = 0;
+    for(i=0; zText[i]>='0' && zText[i]<='9'; i++){
+      iVal = iVal*10 + (zText[i] - '0');
+    }
+    *piEndBlock = (i64)iVal;
+    while( zText[i]==' ' ) i++;
+    iVal = 0;
+    if( zText[i]=='-' ){
+      i++;
+      iMul = -1;
+    }
+    for(/* no-op */; zText[i]>='0' && zText[i]<='9'; i++){
+      iVal = iVal*10 + (zText[i] - '0');
+    }
+    *pnByte = ((i64)iVal * (i64)iMul);
+  }
+}
+
+
+/*
+** A segment of size nByte bytes has just been written to absolute level
+** iAbsLevel. Promote any segments that should be promoted as a result.
+*/
+static int fts3PromoteSegments(
+  Fts3Table *p,                   /* FTS table handle */
+  sqlite3_int64 iAbsLevel,        /* Absolute level just updated */
+  sqlite3_int64 nByte             /* Size of new segment at iAbsLevel */
+){
+  int rc = SQLITE_OK;
+  sqlite3_stmt *pRange;
+
+  rc = fts3SqlStmt(p, SQL_SELECT_LEVEL_RANGE2, &pRange, 0);
+
+  if( rc==SQLITE_OK ){
+    int bOk = 0;
+    i64 iLast = (iAbsLevel/FTS3_SEGDIR_MAXLEVEL + 1) * FTS3_SEGDIR_MAXLEVEL - 1;
+    i64 nLimit = (nByte*3)/2;
+
+    /* Loop through all entries in the %_segdir table corresponding to 
+    ** segments in this index on levels greater than iAbsLevel. If there is
+    ** at least one such segment, and it is possible to determine that all 
+    ** such segments are smaller than nLimit bytes in size, they will be 
+    ** promoted to level iAbsLevel.  */
+    sqlite3_bind_int64(pRange, 1, iAbsLevel+1);
+    sqlite3_bind_int64(pRange, 2, iLast);
+    while( SQLITE_ROW==sqlite3_step(pRange) ){
+      i64 nSize = 0, dummy;
+      fts3ReadEndBlockField(pRange, 2, &dummy, &nSize);
+      if( nSize<=0 || nSize>nLimit ){
+        /* If nSize==0, then the %_segdir.end_block field does not not 
+        ** contain a size value. This happens if it was written by an
+        ** old version of FTS. In this case it is not possible to determine
+        ** the size of the segment, and so segment promotion does not
+        ** take place.  */
+        bOk = 0;
+        break;
+      }
+      bOk = 1;
+    }
+    rc = sqlite3_reset(pRange);
+
+    if( bOk ){
+      int iIdx = 0;
+      sqlite3_stmt *pUpdate1 = 0;
+      sqlite3_stmt *pUpdate2 = 0;
+
+      if( rc==SQLITE_OK ){
+        rc = fts3SqlStmt(p, SQL_UPDATE_LEVEL_IDX, &pUpdate1, 0);
+      }
+      if( rc==SQLITE_OK ){
+        rc = fts3SqlStmt(p, SQL_UPDATE_LEVEL, &pUpdate2, 0);
+      }
+
+      if( rc==SQLITE_OK ){
+
+        /* Loop through all %_segdir entries for segments in this index with
+        ** levels equal to or greater than iAbsLevel. As each entry is visited,
+        ** updated it to set (level = -1) and (idx = N), where N is 0 for the
+        ** oldest segment in the range, 1 for the next oldest, and so on.
+        **
+        ** In other words, move all segments being promoted to level -1,
+        ** setting the "idx" fields as appropriate to keep them in the same
+        ** order. The contents of level -1 (which is never used, except
+        ** transiently here), will be moved back to level iAbsLevel below.  */
+        sqlite3_bind_int64(pRange, 1, iAbsLevel);
+        while( SQLITE_ROW==sqlite3_step(pRange) ){
+          sqlite3_bind_int(pUpdate1, 1, iIdx++);
+          sqlite3_bind_int(pUpdate1, 2, sqlite3_column_int(pRange, 0));
+          sqlite3_bind_int(pUpdate1, 3, sqlite3_column_int(pRange, 1));
+          sqlite3_step(pUpdate1);
+          rc = sqlite3_reset(pUpdate1);
+          if( rc!=SQLITE_OK ){
+            sqlite3_reset(pRange);
+            break;
+          }
+        }
+      }
+      if( rc==SQLITE_OK ){
+        rc = sqlite3_reset(pRange);
+      }
+
+      /* Move level -1 to level iAbsLevel */
+      if( rc==SQLITE_OK ){
+        sqlite3_bind_int64(pUpdate2, 1, iAbsLevel);
+        sqlite3_step(pUpdate2);
+        rc = sqlite3_reset(pUpdate2);
+      }
+    }
+  }
+
+
+  return rc;
+}
+
+/*
+** Merge all level iLevel segments in the database into a single 
+** iLevel+1 segment. Or, if iLevel<0, merge all segments into a
+** single segment with a level equal to the numerically largest level 
+** currently present in the database.
+**
+** If this function is called with iLevel<0, but there is only one
+** segment in the database, SQLITE_DONE is returned immediately. 
+** Otherwise, if successful, SQLITE_OK is returned. If an error occurs, 
+** an SQLite error code is returned.
+*/
+static int fts3SegmentMerge(
+  Fts3Table *p, 
+  int iLangid,                    /* Language id to merge */
+  int iIndex,                     /* Index in p->aIndex[] to merge */
+  int iLevel                      /* Level to merge */
+){
+  int rc;                         /* Return code */
+  int iIdx = 0;                   /* Index of new segment */
+  sqlite3_int64 iNewLevel = 0;    /* Level/index to create new segment at */
+  SegmentWriter *pWriter = 0;     /* Used to write the new, merged, segment */
+  Fts3SegFilter filter;           /* Segment term filter condition */
+  Fts3MultiSegReader csr;         /* Cursor to iterate through level(s) */
+  int bIgnoreEmpty = 0;           /* True to ignore empty segments */
+  i64 iMaxLevel = 0;              /* Max level number for this index/langid */
+
+  assert( iLevel==FTS3_SEGCURSOR_ALL
+       || iLevel==FTS3_SEGCURSOR_PENDING
+       || iLevel>=0
+  );
+  assert( iLevel<FTS3_SEGDIR_MAXLEVEL );
+  assert( iIndex>=0 && iIndex<p->nIndex );
+
+  rc = sqlite3Fts3SegReaderCursor(p, iLangid, iIndex, iLevel, 0, 0, 1, 0, &csr);
+  if( rc!=SQLITE_OK || csr.nSegment==0 ) goto finished;
+
+  if( iLevel!=FTS3_SEGCURSOR_PENDING ){
+    rc = fts3SegmentMaxLevel(p, iLangid, iIndex, &iMaxLevel);
+    if( rc!=SQLITE_OK ) goto finished;
+  }
+
+  if( iLevel==FTS3_SEGCURSOR_ALL ){
+    /* This call is to merge all segments in the database to a single
+    ** segment. The level of the new segment is equal to the numerically
+    ** greatest segment level currently present in the database for this
+    ** index. The idx of the new segment is always 0.  */
+    if( csr.nSegment==1 && 0==fts3SegReaderIsPending(csr.apSegment[0]) ){
+      rc = SQLITE_DONE;
+      goto finished;
+    }
+    iNewLevel = iMaxLevel;
+    bIgnoreEmpty = 1;
+
+  }else{
+    /* This call is to merge all segments at level iLevel. find the next
+    ** available segment index at level iLevel+1. The call to
+    ** fts3AllocateSegdirIdx() will merge the segments at level iLevel+1 to 
+    ** a single iLevel+2 segment if necessary.  */
+    assert( FTS3_SEGCURSOR_PENDING==-1 );
+    iNewLevel = getAbsoluteLevel(p, iLangid, iIndex, iLevel+1);
+    rc = fts3AllocateSegdirIdx(p, iLangid, iIndex, iLevel+1, &iIdx);
+    bIgnoreEmpty = (iLevel!=FTS3_SEGCURSOR_PENDING) && (iNewLevel>iMaxLevel);
+  }
+  if( rc!=SQLITE_OK ) goto finished;
+
+  assert( csr.nSegment>0 );
+  assert_fts3_nc( iNewLevel>=getAbsoluteLevel(p, iLangid, iIndex, 0) );
+  assert_fts3_nc( 
+    iNewLevel<getAbsoluteLevel(p, iLangid, iIndex,FTS3_SEGDIR_MAXLEVEL) 
+  );
+
+  memset(&filter, 0, sizeof(Fts3SegFilter));
+  filter.flags = FTS3_SEGMENT_REQUIRE_POS;
+  filter.flags |= (bIgnoreEmpty ? FTS3_SEGMENT_IGNORE_EMPTY : 0);
+
+  rc = sqlite3Fts3SegReaderStart(p, &csr, &filter);
+  while( SQLITE_OK==rc ){
+    rc = sqlite3Fts3SegReaderStep(p, &csr);
+    if( rc!=SQLITE_ROW ) break;
+    rc = fts3SegWriterAdd(p, &pWriter, 1, 
+        csr.zTerm, csr.nTerm, csr.aDoclist, csr.nDoclist);
+  }
+  if( rc!=SQLITE_OK ) goto finished;
+  assert_fts3_nc( pWriter || bIgnoreEmpty );
+
+  if( iLevel!=FTS3_SEGCURSOR_PENDING ){
+    rc = fts3DeleteSegdir(
+        p, iLangid, iIndex, iLevel, csr.apSegment, csr.nSegment
+    );
+    if( rc!=SQLITE_OK ) goto finished;
+  }
+  if( pWriter ){
+    rc = fts3SegWriterFlush(p, pWriter, iNewLevel, iIdx);
+    if( rc==SQLITE_OK ){
+      if( iLevel==FTS3_SEGCURSOR_PENDING || iNewLevel<iMaxLevel ){
+        rc = fts3PromoteSegments(p, iNewLevel, pWriter->nLeafData);
+      }
+    }
+  }
+
+ finished:
+  fts3SegWriterFree(pWriter);
+  sqlite3Fts3SegReaderFinish(&csr);
+  return rc;
+}
+
+
+/* 
+** Flush the contents of pendingTerms to level 0 segments. 
+*/
+int sqlite3Fts3PendingTermsFlush(Fts3Table *p){
+  int rc = SQLITE_OK;
+  int i;
+        
+  for(i=0; rc==SQLITE_OK && i<p->nIndex; i++){
+    rc = fts3SegmentMerge(p, p->iPrevLangid, i, FTS3_SEGCURSOR_PENDING);
+    if( rc==SQLITE_DONE ) rc = SQLITE_OK;
+  }
+
+  /* Determine the auto-incr-merge setting if unknown.  If enabled,
+  ** estimate the number of leaf blocks of content to be written
+  */
+  if( rc==SQLITE_OK && p->bHasStat
+   && p->nAutoincrmerge==0xff && p->nLeafAdd>0
+  ){
+    sqlite3_stmt *pStmt = 0;
+    rc = fts3SqlStmt(p, SQL_SELECT_STAT, &pStmt, 0);
+    if( rc==SQLITE_OK ){
+      sqlite3_bind_int(pStmt, 1, FTS_STAT_AUTOINCRMERGE);
+      rc = sqlite3_step(pStmt);
+      if( rc==SQLITE_ROW ){
+        p->nAutoincrmerge = sqlite3_column_int(pStmt, 0);
+        if( p->nAutoincrmerge==1 ) p->nAutoincrmerge = 8;
+      }else if( rc==SQLITE_DONE ){
+        p->nAutoincrmerge = 0;
+      }
+      rc = sqlite3_reset(pStmt);
+    }
+  }
+
+  if( rc==SQLITE_OK ){
+    sqlite3Fts3PendingTermsClear(p);
+  }
+  return rc;
+}
+
+/*
+** Encode N integers as varints into a blob.
+*/
+static void fts3EncodeIntArray(
+  int N,             /* The number of integers to encode */
+  u32 *a,            /* The integer values */
+  char *zBuf,        /* Write the BLOB here */
+  int *pNBuf         /* Write number of bytes if zBuf[] used here */
+){
+  int i, j;
+  for(i=j=0; i<N; i++){
+    j += sqlite3Fts3PutVarint(&zBuf[j], (sqlite3_int64)a[i]);
+  }
+  *pNBuf = j;
+}
+
+/*
+** Decode a blob of varints into N integers
+*/
+static void fts3DecodeIntArray(
+  int N,             /* The number of integers to decode */
+  u32 *a,            /* Write the integer values */
+  const char *zBuf,  /* The BLOB containing the varints */
+  int nBuf           /* size of the BLOB */
+){
+  int i = 0;
+  if( nBuf && (zBuf[nBuf-1]&0x80)==0 ){
+    int j;
+    for(i=j=0; i<N && j<nBuf; i++){
+      sqlite3_int64 x;
+      j += sqlite3Fts3GetVarint(&zBuf[j], &x);
+      a[i] = (u32)(x & 0xffffffff);
+    }
+  }
+  while( i<N ) a[i++] = 0;
+}
+
+/*
+** Insert the sizes (in tokens) for each column of the document
+** with docid equal to p->iPrevDocid.  The sizes are encoded as
+** a blob of varints.
+*/
+static void fts3InsertDocsize(
+  int *pRC,                       /* Result code */
+  Fts3Table *p,                   /* Table into which to insert */
+  u32 *aSz                        /* Sizes of each column, in tokens */
+){
+  char *pBlob;             /* The BLOB encoding of the document size */
+  int nBlob;               /* Number of bytes in the BLOB */
+  sqlite3_stmt *pStmt;     /* Statement used to insert the encoding */
+  int rc;                  /* Result code from subfunctions */
+
+  if( *pRC ) return;
+  pBlob = sqlite3_malloc64( 10*(sqlite3_int64)p->nColumn );
+  if( pBlob==0 ){
+    *pRC = SQLITE_NOMEM;
+    return;
+  }
+  fts3EncodeIntArray(p->nColumn, aSz, pBlob, &nBlob);
+  rc = fts3SqlStmt(p, SQL_REPLACE_DOCSIZE, &pStmt, 0);
+  if( rc ){
+    sqlite3_free(pBlob);
+    *pRC = rc;
+    return;
+  }
+  sqlite3_bind_int64(pStmt, 1, p->iPrevDocid);
+  sqlite3_bind_blob(pStmt, 2, pBlob, nBlob, sqlite3_free);
+  sqlite3_step(pStmt);
+  *pRC = sqlite3_reset(pStmt);
+}
+
+/*
+** Record 0 of the %_stat table contains a blob consisting of N varints,
+** where N is the number of user defined columns in the fts3 table plus
+** two. If nCol is the number of user defined columns, then values of the 
+** varints are set as follows:
+**
+**   Varint 0:       Total number of rows in the table.
+**
+**   Varint 1..nCol: For each column, the total number of tokens stored in
+**                   the column for all rows of the table.
+**
+**   Varint 1+nCol:  The total size, in bytes, of all text values in all
+**                   columns of all rows of the table.
+**
+*/
+static void fts3UpdateDocTotals(
+  int *pRC,                       /* The result code */
+  Fts3Table *p,                   /* Table being updated */
+  u32 *aSzIns,                    /* Size increases */
+  u32 *aSzDel,                    /* Size decreases */
+  int nChng                       /* Change in the number of documents */
+){
+  char *pBlob;             /* Storage for BLOB written into %_stat */
+  int nBlob;               /* Size of BLOB written into %_stat */
+  u32 *a;                  /* Array of integers that becomes the BLOB */
+  sqlite3_stmt *pStmt;     /* Statement for reading and writing */
+  int i;                   /* Loop counter */
+  int rc;                  /* Result code from subfunctions */
+
+  const int nStat = p->nColumn+2;
+
+  if( *pRC ) return;
+  a = sqlite3_malloc64( (sizeof(u32)+10)*(sqlite3_int64)nStat );
+  if( a==0 ){
+    *pRC = SQLITE_NOMEM;
+    return;
+  }
+  pBlob = (char*)&a[nStat];
+  rc = fts3SqlStmt(p, SQL_SELECT_STAT, &pStmt, 0);
+  if( rc ){
+    sqlite3_free(a);
+    *pRC = rc;
+    return;
+  }
+  sqlite3_bind_int(pStmt, 1, FTS_STAT_DOCTOTAL);
+  if( sqlite3_step(pStmt)==SQLITE_ROW ){
+    fts3DecodeIntArray(nStat, a,
+         sqlite3_column_blob(pStmt, 0),
+         sqlite3_column_bytes(pStmt, 0));
+  }else{
+    memset(a, 0, sizeof(u32)*(nStat) );
+  }
+  rc = sqlite3_reset(pStmt);
+  if( rc!=SQLITE_OK ){
+    sqlite3_free(a);
+    *pRC = rc;
+    return;
+  }
+  if( nChng<0 && a[0]<(u32)(-nChng) ){
+    a[0] = 0;
+  }else{
+    a[0] += nChng;
+  }
+  for(i=0; i<p->nColumn+1; i++){
+    u32 x = a[i+1];
+    if( x+aSzIns[i] < aSzDel[i] ){
+      x = 0;
+    }else{
+      x = x + aSzIns[i] - aSzDel[i];
+    }
+    a[i+1] = x;
+  }
+  fts3EncodeIntArray(nStat, a, pBlob, &nBlob);
+  rc = fts3SqlStmt(p, SQL_REPLACE_STAT, &pStmt, 0);
+  if( rc ){
+    sqlite3_free(a);
+    *pRC = rc;
+    return;
+  }
+  sqlite3_bind_int(pStmt, 1, FTS_STAT_DOCTOTAL);
+  sqlite3_bind_blob(pStmt, 2, pBlob, nBlob, SQLITE_STATIC);
+  sqlite3_step(pStmt);
+  *pRC = sqlite3_reset(pStmt);
+  sqlite3_bind_null(pStmt, 2);
+  sqlite3_free(a);
+}
+
+/*
+** Merge the entire database so that there is one segment for each 
+** iIndex/iLangid combination.
+*/
+static int fts3DoOptimize(Fts3Table *p, int bReturnDone){
+  int bSeenDone = 0;
+  int rc;
+  sqlite3_stmt *pAllLangid = 0;
+
+  rc = sqlite3Fts3PendingTermsFlush(p);
+  if( rc==SQLITE_OK ){
+    rc = fts3SqlStmt(p, SQL_SELECT_ALL_LANGID, &pAllLangid, 0);
+  }
+  if( rc==SQLITE_OK ){
+    int rc2;
+    sqlite3_bind_int(pAllLangid, 1, p->iPrevLangid);
+    sqlite3_bind_int(pAllLangid, 2, p->nIndex);
+    while( sqlite3_step(pAllLangid)==SQLITE_ROW ){
+      int i;
+      int iLangid = sqlite3_column_int(pAllLangid, 0);
+      for(i=0; rc==SQLITE_OK && i<p->nIndex; i++){
+        rc = fts3SegmentMerge(p, iLangid, i, FTS3_SEGCURSOR_ALL);
+        if( rc==SQLITE_DONE ){
+          bSeenDone = 1;
+          rc = SQLITE_OK;
+        }
+      }
+    }
+    rc2 = sqlite3_reset(pAllLangid);
+    if( rc==SQLITE_OK ) rc = rc2;
+  }
+
+  sqlite3Fts3SegmentsClose(p);
+
+  return (rc==SQLITE_OK && bReturnDone && bSeenDone) ? SQLITE_DONE : rc;
+}
+
+/*
+** This function is called when the user executes the following statement:
+**
+**     INSERT INTO <tbl>(<tbl>) VALUES('rebuild');
+**
+** The entire FTS index is discarded and rebuilt. If the table is one 
+** created using the content=xxx option, then the new index is based on
+** the current contents of the xxx table. Otherwise, it is rebuilt based
+** on the contents of the %_content table.
+*/
+static int fts3DoRebuild(Fts3Table *p){
+  int rc;                         /* Return Code */
+
+  rc = fts3DeleteAll(p, 0);
+  if( rc==SQLITE_OK ){
+    u32 *aSz = 0;
+    u32 *aSzIns = 0;
+    u32 *aSzDel = 0;
+    sqlite3_stmt *pStmt = 0;
+    int nEntry = 0;
+
+    /* Compose and prepare an SQL statement to loop through the content table */
+    char *zSql = sqlite3_mprintf("SELECT %s" , p->zReadExprlist);
+    if( !zSql ){
+      rc = SQLITE_NOMEM;
+    }else{
+      rc = sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0);
+      sqlite3_free(zSql);
+    }
+
+    if( rc==SQLITE_OK ){
+      sqlite3_int64 nByte = sizeof(u32) * ((sqlite3_int64)p->nColumn+1)*3;
+      aSz = (u32 *)sqlite3_malloc64(nByte);
+      if( aSz==0 ){
+        rc = SQLITE_NOMEM;
+      }else{
+        memset(aSz, 0, nByte);
+        aSzIns = &aSz[p->nColumn+1];
+        aSzDel = &aSzIns[p->nColumn+1];
+      }
+    }
+
+    while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pStmt) ){
+      int iCol;
+      int iLangid = langidFromSelect(p, pStmt);
+      rc = fts3PendingTermsDocid(p, 0, iLangid, sqlite3_column_int64(pStmt, 0));
+      memset(aSz, 0, sizeof(aSz[0]) * (p->nColumn+1));
+      for(iCol=0; rc==SQLITE_OK && iCol<p->nColumn; iCol++){
+        if( p->abNotindexed[iCol]==0 ){
+          const char *z = (const char *) sqlite3_column_text(pStmt, iCol+1);
+          rc = fts3PendingTermsAdd(p, iLangid, z, iCol, &aSz[iCol]);
+          aSz[p->nColumn] += sqlite3_column_bytes(pStmt, iCol+1);
+        }
+      }
+      if( p->bHasDocsize ){
+        fts3InsertDocsize(&rc, p, aSz);
+      }
+      if( rc!=SQLITE_OK ){
+        sqlite3_finalize(pStmt);
+        pStmt = 0;
+      }else{
+        nEntry++;
+        for(iCol=0; iCol<=p->nColumn; iCol++){
+          aSzIns[iCol] += aSz[iCol];
+        }
+      }
+    }
+    if( p->bFts4 ){
+      fts3UpdateDocTotals(&rc, p, aSzIns, aSzDel, nEntry);
+    }
+    sqlite3_free(aSz);
+
+    if( pStmt ){
+      int rc2 = sqlite3_finalize(pStmt);
+      if( rc==SQLITE_OK ){
+        rc = rc2;
+      }
+    }
+  }
+
+  return rc;
+}
+
+
+/*
+** This function opens a cursor used to read the input data for an 
+** incremental merge operation. Specifically, it opens a cursor to scan
+** the oldest nSeg segments (idx=0 through idx=(nSeg-1)) in absolute 
+** level iAbsLevel.
+*/
+static int fts3IncrmergeCsr(
+  Fts3Table *p,                   /* FTS3 table handle */
+  sqlite3_int64 iAbsLevel,        /* Absolute level to open */
+  int nSeg,                       /* Number of segments to merge */
+  Fts3MultiSegReader *pCsr        /* Cursor object to populate */
+){
+  int rc;                         /* Return Code */
+  sqlite3_stmt *pStmt = 0;        /* Statement used to read %_segdir entry */  
+  sqlite3_int64 nByte;            /* Bytes allocated at pCsr->apSegment[] */
+
+  /* Allocate space for the Fts3MultiSegReader.aCsr[] array */
+  memset(pCsr, 0, sizeof(*pCsr));
+  nByte = sizeof(Fts3SegReader *) * nSeg;
+  pCsr->apSegment = (Fts3SegReader **)sqlite3_malloc64(nByte);
+
+  if( pCsr->apSegment==0 ){
+    rc = SQLITE_NOMEM;
+  }else{
+    memset(pCsr->apSegment, 0, nByte);
+    rc = fts3SqlStmt(p, SQL_SELECT_LEVEL, &pStmt, 0);
+  }
+  if( rc==SQLITE_OK ){
+    int i;
+    int rc2;
+    sqlite3_bind_int64(pStmt, 1, iAbsLevel);
+    assert( pCsr->nSegment==0 );
+    for(i=0; rc==SQLITE_OK && sqlite3_step(pStmt)==SQLITE_ROW && i<nSeg; i++){
+      rc = sqlite3Fts3SegReaderNew(i, 0,
+          sqlite3_column_int64(pStmt, 1),        /* segdir.start_block */
+          sqlite3_column_int64(pStmt, 2),        /* segdir.leaves_end_block */
+          sqlite3_column_int64(pStmt, 3),        /* segdir.end_block */
+          sqlite3_column_blob(pStmt, 4),         /* segdir.root */
+          sqlite3_column_bytes(pStmt, 4),        /* segdir.root */
+          &pCsr->apSegment[i]
+      );
+      pCsr->nSegment++;
+    }
+    rc2 = sqlite3_reset(pStmt);
+    if( rc==SQLITE_OK ) rc = rc2;
+  }
+
+  return rc;
+}
+
+typedef struct IncrmergeWriter IncrmergeWriter;
+typedef struct NodeWriter NodeWriter;
+typedef struct Blob Blob;
+typedef struct NodeReader NodeReader;
+
+/*
+** An instance of the following structure is used as a dynamic buffer
+** to build up nodes or other blobs of data in.
+**
+** The function blobGrowBuffer() is used to extend the allocation.
+*/
+struct Blob {
+  char *a;                        /* Pointer to allocation */
+  int n;                          /* Number of valid bytes of data in a[] */
+  int nAlloc;                     /* Allocated size of a[] (nAlloc>=n) */
+};
+
+/*
+** This structure is used to build up buffers containing segment b-tree 
+** nodes (blocks).
+*/
+struct NodeWriter {
+  sqlite3_int64 iBlock;           /* Current block id */
+  Blob key;                       /* Last key written to the current block */
+  Blob block;                     /* Current block image */
+};
+
+/*
+** An object of this type contains the state required to create or append
+** to an appendable b-tree segment.
+*/
+struct IncrmergeWriter {
+  int nLeafEst;                   /* Space allocated for leaf blocks */
+  int nWork;                      /* Number of leaf pages flushed */
+  sqlite3_int64 iAbsLevel;        /* Absolute level of input segments */
+  int iIdx;                       /* Index of *output* segment in iAbsLevel+1 */
+  sqlite3_int64 iStart;           /* Block number of first allocated block */
+  sqlite3_int64 iEnd;             /* Block number of last allocated block */
+  sqlite3_int64 nLeafData;        /* Bytes of leaf page data so far */
+  u8 bNoLeafData;                 /* If true, store 0 for segment size */
+  NodeWriter aNodeWriter[FTS_MAX_APPENDABLE_HEIGHT];
+};
+
+/*
+** An object of the following type is used to read data from a single
+** FTS segment node. See the following functions:
+**
+**     nodeReaderInit()
+**     nodeReaderNext()
+**     nodeReaderRelease()
+*/
+struct NodeReader {
+  const char *aNode;
+  int nNode;
+  int iOff;                       /* Current offset within aNode[] */
+
+  /* Output variables. Containing the current node entry. */
+  sqlite3_int64 iChild;           /* Pointer to child node */
+  Blob term;                      /* Current term */
+  const char *aDoclist;           /* Pointer to doclist */
+  int nDoclist;                   /* Size of doclist in bytes */
+};
+
+/*
+** If *pRc is not SQLITE_OK when this function is called, it is a no-op.
+** Otherwise, if the allocation at pBlob->a is not already at least nMin
+** bytes in size, extend (realloc) it to be so.
+**
+** If an OOM error occurs, set *pRc to SQLITE_NOMEM and leave pBlob->a
+** unmodified. Otherwise, if the allocation succeeds, update pBlob->nAlloc
+** to reflect the new size of the pBlob->a[] buffer.
+*/
+static void blobGrowBuffer(Blob *pBlob, int nMin, int *pRc){
+  if( *pRc==SQLITE_OK && nMin>pBlob->nAlloc ){
+    int nAlloc = nMin;
+    char *a = (char *)sqlite3_realloc64(pBlob->a, nAlloc);
+    if( a ){
+      pBlob->nAlloc = nAlloc;
+      pBlob->a = a;
+    }else{
+      *pRc = SQLITE_NOMEM;
+    }
+  }
+}
+
+/*
+** Attempt to advance the node-reader object passed as the first argument to
+** the next entry on the node. 
+**
+** Return an error code if an error occurs (SQLITE_NOMEM is possible). 
+** Otherwise return SQLITE_OK. If there is no next entry on the node
+** (e.g. because the current entry is the last) set NodeReader->aNode to
+** NULL to indicate EOF. Otherwise, populate the NodeReader structure output 
+** variables for the new entry.
+*/
+static int nodeReaderNext(NodeReader *p){
+  int bFirst = (p->term.n==0);    /* True for first term on the node */
+  int nPrefix = 0;                /* Bytes to copy from previous term */
+  int nSuffix = 0;                /* Bytes to append to the prefix */
+  int rc = SQLITE_OK;             /* Return code */
+
+  assert( p->aNode );
+  if( p->iChild && bFirst==0 ) p->iChild++;
+  if( p->iOff>=p->nNode ){
+    /* EOF */
+    p->aNode = 0;
+  }else{
+    if( bFirst==0 ){
+      p->iOff += fts3GetVarint32(&p->aNode[p->iOff], &nPrefix);
+    }
+    p->iOff += fts3GetVarint32(&p->aNode[p->iOff], &nSuffix);
+
+    if( nPrefix>p->term.n || nSuffix>p->nNode-p->iOff || nSuffix==0 ){
+      return FTS_CORRUPT_VTAB;
+    }
+    blobGrowBuffer(&p->term, nPrefix+nSuffix, &rc);
+    if( rc==SQLITE_OK && ALWAYS(p->term.a!=0) ){
+      memcpy(&p->term.a[nPrefix], &p->aNode[p->iOff], nSuffix);
+      p->term.n = nPrefix+nSuffix;
+      p->iOff += nSuffix;
+      if( p->iChild==0 ){
+        p->iOff += fts3GetVarint32(&p->aNode[p->iOff], &p->nDoclist);
+        if( (p->nNode-p->iOff)<p->nDoclist ){
+          return FTS_CORRUPT_VTAB;
+        }
+        p->aDoclist = &p->aNode[p->iOff];
+        p->iOff += p->nDoclist;
+      }
+    }
+  }
+
+  assert_fts3_nc( p->iOff<=p->nNode );
+  return rc;
+}
+
+/*
+** Release all dynamic resources held by node-reader object *p.
+*/
+static void nodeReaderRelease(NodeReader *p){
+  sqlite3_free(p->term.a);
+}
+
+/*
+** Initialize a node-reader object to read the node in buffer aNode/nNode.
+**
+** If successful, SQLITE_OK is returned and the NodeReader object set to 
+** point to the first entry on the node (if any). Otherwise, an SQLite
+** error code is returned.
+*/
+static int nodeReaderInit(NodeReader *p, const char *aNode, int nNode){
+  memset(p, 0, sizeof(NodeReader));
+  p->aNode = aNode;
+  p->nNode = nNode;
+
+  /* Figure out if this is a leaf or an internal node. */
+  if( aNode && aNode[0] ){
+    /* An internal node. */
+    p->iOff = 1 + sqlite3Fts3GetVarint(&p->aNode[1], &p->iChild);
+  }else{
+    p->iOff = 1;
+  }
+
+  return aNode ? nodeReaderNext(p) : SQLITE_OK;
+}
+
+/*
+** This function is called while writing an FTS segment each time a leaf o
+** node is finished and written to disk. The key (zTerm/nTerm) is guaranteed
+** to be greater than the largest key on the node just written, but smaller
+** than or equal to the first key that will be written to the next leaf
+** node.
+**
+** The block id of the leaf node just written to disk may be found in
+** (pWriter->aNodeWriter[0].iBlock) when this function is called.
+*/
+static int fts3IncrmergePush(
+  Fts3Table *p,                   /* Fts3 table handle */
+  IncrmergeWriter *pWriter,       /* Writer object */
+  const char *zTerm,              /* Term to write to internal node */
+  int nTerm                       /* Bytes at zTerm */
+){
+  sqlite3_int64 iPtr = pWriter->aNodeWriter[0].iBlock;
+  int iLayer;
+
+  assert( nTerm>0 );
+  for(iLayer=1; ALWAYS(iLayer<FTS_MAX_APPENDABLE_HEIGHT); iLayer++){
+    sqlite3_int64 iNextPtr = 0;
+    NodeWriter *pNode = &pWriter->aNodeWriter[iLayer];
+    int rc = SQLITE_OK;
+    int nPrefix;
+    int nSuffix;
+    int nSpace;
+
+    /* Figure out how much space the key will consume if it is written to
+    ** the current node of layer iLayer. Due to the prefix compression, 
+    ** the space required changes depending on which node the key is to
+    ** be added to.  */
+    nPrefix = fts3PrefixCompress(pNode->key.a, pNode->key.n, zTerm, nTerm);
+    nSuffix = nTerm - nPrefix;
+    if(nSuffix<=0 ) return FTS_CORRUPT_VTAB;
+    nSpace  = sqlite3Fts3VarintLen(nPrefix);
+    nSpace += sqlite3Fts3VarintLen(nSuffix) + nSuffix;
+
+    if( pNode->key.n==0 || (pNode->block.n + nSpace)<=p->nNodeSize ){ 
+      /* If the current node of layer iLayer contains zero keys, or if adding
+      ** the key to it will not cause it to grow to larger than nNodeSize 
+      ** bytes in size, write the key here.  */
+
+      Blob *pBlk = &pNode->block;
+      if( pBlk->n==0 ){
+        blobGrowBuffer(pBlk, p->nNodeSize, &rc);
+        if( rc==SQLITE_OK ){
+          pBlk->a[0] = (char)iLayer;
+          pBlk->n = 1 + sqlite3Fts3PutVarint(&pBlk->a[1], iPtr);
+        }
+      }
+      blobGrowBuffer(pBlk, pBlk->n + nSpace, &rc);
+      blobGrowBuffer(&pNode->key, nTerm, &rc);
+
+      if( rc==SQLITE_OK ){
+        if( pNode->key.n ){
+          pBlk->n += sqlite3Fts3PutVarint(&pBlk->a[pBlk->n], nPrefix);
+        }
+        pBlk->n += sqlite3Fts3PutVarint(&pBlk->a[pBlk->n], nSuffix);
+        assert( nPrefix+nSuffix<=nTerm );
+        assert( nPrefix>=0 );
+        memcpy(&pBlk->a[pBlk->n], &zTerm[nPrefix], nSuffix);
+        pBlk->n += nSuffix;
+
+        memcpy(pNode->key.a, zTerm, nTerm);
+        pNode->key.n = nTerm;
+      }
+    }else{
+      /* Otherwise, flush the current node of layer iLayer to disk.
+      ** Then allocate a new, empty sibling node. The key will be written
+      ** into the parent of this node. */
+      rc = fts3WriteSegment(p, pNode->iBlock, pNode->block.a, pNode->block.n);
+
+      assert( pNode->block.nAlloc>=p->nNodeSize );
+      pNode->block.a[0] = (char)iLayer;
+      pNode->block.n = 1 + sqlite3Fts3PutVarint(&pNode->block.a[1], iPtr+1);
+
+      iNextPtr = pNode->iBlock;
+      pNode->iBlock++;
+      pNode->key.n = 0;
+    }
+
+    if( rc!=SQLITE_OK || iNextPtr==0 ) return rc;
+    iPtr = iNextPtr;
+  }
+
+  assert( 0 );
+  return 0;
+}
+
+/*
+** Append a term and (optionally) doclist to the FTS segment node currently
+** stored in blob *pNode. The node need not contain any terms, but the
+** header must be written before this function is called.
+**
+** A node header is a single 0x00 byte for a leaf node, or a height varint
+** followed by the left-hand-child varint for an internal node.
+**
+** The term to be appended is passed via arguments zTerm/nTerm. For a 
+** leaf node, the doclist is passed as aDoclist/nDoclist. For an internal
+** node, both aDoclist and nDoclist must be passed 0.
+**
+** If the size of the value in blob pPrev is zero, then this is the first
+** term written to the node. Otherwise, pPrev contains a copy of the 
+** previous term. Before this function returns, it is updated to contain a
+** copy of zTerm/nTerm.
+**
+** It is assumed that the buffer associated with pNode is already large
+** enough to accommodate the new entry. The buffer associated with pPrev
+** is extended by this function if requrired.
+**
+** If an error (i.e. OOM condition) occurs, an SQLite error code is
+** returned. Otherwise, SQLITE_OK.
+*/
+static int fts3AppendToNode(
+  Blob *pNode,                    /* Current node image to append to */
+  Blob *pPrev,                    /* Buffer containing previous term written */
+  const char *zTerm,              /* New term to write */
+  int nTerm,                      /* Size of zTerm in bytes */
+  const char *aDoclist,           /* Doclist (or NULL) to write */
+  int nDoclist                    /* Size of aDoclist in bytes */ 
+){
+  int rc = SQLITE_OK;             /* Return code */
+  int bFirst = (pPrev->n==0);     /* True if this is the first term written */
+  int nPrefix;                    /* Size of term prefix in bytes */
+  int nSuffix;                    /* Size of term suffix in bytes */
+
+  /* Node must have already been started. There must be a doclist for a
+  ** leaf node, and there must not be a doclist for an internal node.  */
+  assert( pNode->n>0 );
+  assert_fts3_nc( (pNode->a[0]=='\0')==(aDoclist!=0) );
+
+  blobGrowBuffer(pPrev, nTerm, &rc);
+  if( rc!=SQLITE_OK ) return rc;
+  assert( pPrev!=0 );
+  assert( pPrev->a!=0 );
+
+  nPrefix = fts3PrefixCompress(pPrev->a, pPrev->n, zTerm, nTerm);
+  nSuffix = nTerm - nPrefix;
+  if( nSuffix<=0 ) return FTS_CORRUPT_VTAB;
+  memcpy(pPrev->a, zTerm, nTerm);
+  pPrev->n = nTerm;
+
+  if( bFirst==0 ){
+    pNode->n += sqlite3Fts3PutVarint(&pNode->a[pNode->n], nPrefix);
+  }
+  pNode->n += sqlite3Fts3PutVarint(&pNode->a[pNode->n], nSuffix);
+  memcpy(&pNode->a[pNode->n], &zTerm[nPrefix], nSuffix);
+  pNode->n += nSuffix;
+
+  if( aDoclist ){
+    pNode->n += sqlite3Fts3PutVarint(&pNode->a[pNode->n], nDoclist);
+    memcpy(&pNode->a[pNode->n], aDoclist, nDoclist);
+    pNode->n += nDoclist;
+  }
+
+  assert( pNode->n<=pNode->nAlloc );
+
+  return SQLITE_OK;
+}
+
+/*
+** Append the current term and doclist pointed to by cursor pCsr to the
+** appendable b-tree segment opened for writing by pWriter.
+**
+** Return SQLITE_OK if successful, or an SQLite error code otherwise.
+*/
+static int fts3IncrmergeAppend(
+  Fts3Table *p,                   /* Fts3 table handle */
+  IncrmergeWriter *pWriter,       /* Writer object */
+  Fts3MultiSegReader *pCsr        /* Cursor containing term and doclist */
+){
+  const char *zTerm = pCsr->zTerm;
+  int nTerm = pCsr->nTerm;
+  const char *aDoclist = pCsr->aDoclist;
+  int nDoclist = pCsr->nDoclist;
+  int rc = SQLITE_OK;           /* Return code */
+  int nSpace;                   /* Total space in bytes required on leaf */
+  int nPrefix;                  /* Size of prefix shared with previous term */
+  int nSuffix;                  /* Size of suffix (nTerm - nPrefix) */
+  NodeWriter *pLeaf;            /* Object used to write leaf nodes */
+
+  pLeaf = &pWriter->aNodeWriter[0];
+  nPrefix = fts3PrefixCompress(pLeaf->key.a, pLeaf->key.n, zTerm, nTerm);
+  nSuffix = nTerm - nPrefix;
+  if(nSuffix<=0 ) return FTS_CORRUPT_VTAB;
+
+  nSpace  = sqlite3Fts3VarintLen(nPrefix);
+  nSpace += sqlite3Fts3VarintLen(nSuffix) + nSuffix;
+  nSpace += sqlite3Fts3VarintLen(nDoclist) + nDoclist;
+
+  /* If the current block is not empty, and if adding this term/doclist
+  ** to the current block would make it larger than Fts3Table.nNodeSize bytes,
+  ** and if there is still room for another leaf page, write this block out to
+  ** the database. */
+  if( pLeaf->block.n>0 
+   && (pLeaf->block.n + nSpace)>p->nNodeSize 
+   && pLeaf->iBlock < (pWriter->iStart + pWriter->nLeafEst)
+  ){
+    rc = fts3WriteSegment(p, pLeaf->iBlock, pLeaf->block.a, pLeaf->block.n);
+    pWriter->nWork++;
+
+    /* Add the current term to the parent node. The term added to the 
+    ** parent must:
+    **
+    **   a) be greater than the largest term on the leaf node just written
+    **      to the database (still available in pLeaf->key), and
+    **
+    **   b) be less than or equal to the term about to be added to the new
+    **      leaf node (zTerm/nTerm).
+    **
+    ** In other words, it must be the prefix of zTerm 1 byte longer than
+    ** the common prefix (if any) of zTerm and pWriter->zTerm.
+    */
+    if( rc==SQLITE_OK ){
+      rc = fts3IncrmergePush(p, pWriter, zTerm, nPrefix+1);
+    }
+
+    /* Advance to the next output block */
+    pLeaf->iBlock++;
+    pLeaf->key.n = 0;
+    pLeaf->block.n = 0;
+
+    nSuffix = nTerm;
+    nSpace  = 1;
+    nSpace += sqlite3Fts3VarintLen(nSuffix) + nSuffix;
+    nSpace += sqlite3Fts3VarintLen(nDoclist) + nDoclist;
+  }
+
+  pWriter->nLeafData += nSpace;
+  blobGrowBuffer(&pLeaf->block, pLeaf->block.n + nSpace, &rc);
+  if( rc==SQLITE_OK ){
+    if( pLeaf->block.n==0 ){
+      pLeaf->block.n = 1;
+      pLeaf->block.a[0] = '\0';
+    }
+    rc = fts3AppendToNode(
+        &pLeaf->block, &pLeaf->key, zTerm, nTerm, aDoclist, nDoclist
+    );
+  }
+
+  return rc;
+}
+
+/*
+** This function is called to release all dynamic resources held by the
+** merge-writer object pWriter, and if no error has occurred, to flush
+** all outstanding node buffers held by pWriter to disk.
+**
+** If *pRc is not SQLITE_OK when this function is called, then no attempt
+** is made to write any data to disk. Instead, this function serves only
+** to release outstanding resources.
+**
+** Otherwise, if *pRc is initially SQLITE_OK and an error occurs while
+** flushing buffers to disk, *pRc is set to an SQLite error code before
+** returning.
+*/
+static void fts3IncrmergeRelease(
+  Fts3Table *p,                   /* FTS3 table handle */
+  IncrmergeWriter *pWriter,       /* Merge-writer object */
+  int *pRc                        /* IN/OUT: Error code */
+){
+  int i;                          /* Used to iterate through non-root layers */
+  int iRoot;                      /* Index of root in pWriter->aNodeWriter */
+  NodeWriter *pRoot;              /* NodeWriter for root node */
+  int rc = *pRc;                  /* Error code */
+
+  /* Set iRoot to the index in pWriter->aNodeWriter[] of the output segment 
+  ** root node. If the segment fits entirely on a single leaf node, iRoot
+  ** will be set to 0. If the root node is the parent of the leaves, iRoot
+  ** will be 1. And so on.  */
+  for(iRoot=FTS_MAX_APPENDABLE_HEIGHT-1; iRoot>=0; iRoot--){
+    NodeWriter *pNode = &pWriter->aNodeWriter[iRoot];
+    if( pNode->block.n>0 ) break;
+    assert( *pRc || pNode->block.nAlloc==0 );
+    assert( *pRc || pNode->key.nAlloc==0 );
+    sqlite3_free(pNode->block.a);
+    sqlite3_free(pNode->key.a);
+  }
+
+  /* Empty output segment. This is a no-op. */
+  if( iRoot<0 ) return;
+
+  /* The entire output segment fits on a single node. Normally, this means
+  ** the node would be stored as a blob in the "root" column of the %_segdir
+  ** table. However, this is not permitted in this case. The problem is that 
+  ** space has already been reserved in the %_segments table, and so the 
+  ** start_block and end_block fields of the %_segdir table must be populated. 
+  ** And, by design or by accident, released versions of FTS cannot handle 
+  ** segments that fit entirely on the root node with start_block!=0.
+  **
+  ** Instead, create a synthetic root node that contains nothing but a 
+  ** pointer to the single content node. So that the segment consists of a
+  ** single leaf and a single interior (root) node.
+  **
+  ** Todo: Better might be to defer allocating space in the %_segments 
+  ** table until we are sure it is needed.
+  */
+  if( iRoot==0 ){
+    Blob *pBlock = &pWriter->aNodeWriter[1].block;
+    blobGrowBuffer(pBlock, 1 + FTS3_VARINT_MAX, &rc);
+    if( rc==SQLITE_OK ){
+      pBlock->a[0] = 0x01;
+      pBlock->n = 1 + sqlite3Fts3PutVarint(
+          &pBlock->a[1], pWriter->aNodeWriter[0].iBlock
+      );
+    }
+    iRoot = 1;
+  }
+  pRoot = &pWriter->aNodeWriter[iRoot];
+
+  /* Flush all currently outstanding nodes to disk. */
+  for(i=0; i<iRoot; i++){
+    NodeWriter *pNode = &pWriter->aNodeWriter[i];
+    if( pNode->block.n>0 && rc==SQLITE_OK ){
+      rc = fts3WriteSegment(p, pNode->iBlock, pNode->block.a, pNode->block.n);
+    }
+    sqlite3_free(pNode->block.a);
+    sqlite3_free(pNode->key.a);
+  }
+
+  /* Write the %_segdir record. */
+  if( rc==SQLITE_OK ){
+    rc = fts3WriteSegdir(p, 
+        pWriter->iAbsLevel+1,               /* level */
+        pWriter->iIdx,                      /* idx */
+        pWriter->iStart,                    /* start_block */
+        pWriter->aNodeWriter[0].iBlock,     /* leaves_end_block */
+        pWriter->iEnd,                      /* end_block */
+        (pWriter->bNoLeafData==0 ? pWriter->nLeafData : 0),   /* end_block */
+        pRoot->block.a, pRoot->block.n      /* root */
+    );
+  }
+  sqlite3_free(pRoot->block.a);
+  sqlite3_free(pRoot->key.a);
+
+  *pRc = rc;
+}
+
+/*
+** Compare the term in buffer zLhs (size in bytes nLhs) with that in
+** zRhs (size in bytes nRhs) using memcmp. If one term is a prefix of
+** the other, it is considered to be smaller than the other.
+**
+** Return -ve if zLhs is smaller than zRhs, 0 if it is equal, or +ve
+** if it is greater.
+*/
+static int fts3TermCmp(
+  const char *zLhs, int nLhs,     /* LHS of comparison */
+  const char *zRhs, int nRhs      /* RHS of comparison */
+){
+  int nCmp = MIN(nLhs, nRhs);
+  int res;
+
+  if( nCmp && ALWAYS(zLhs) && ALWAYS(zRhs) ){
+    res = memcmp(zLhs, zRhs, nCmp);
+  }else{
+    res = 0;
+  }
+  if( res==0 ) res = nLhs - nRhs;
+
+  return res;
+}
+
+
+/*
+** Query to see if the entry in the %_segments table with blockid iEnd is 
+** NULL. If no error occurs and the entry is NULL, set *pbRes 1 before
+** returning. Otherwise, set *pbRes to 0. 
+**
+** Or, if an error occurs while querying the database, return an SQLite 
+** error code. The final value of *pbRes is undefined in this case.
+**
+** This is used to test if a segment is an "appendable" segment. If it
+** is, then a NULL entry has been inserted into the %_segments table
+** with blockid %_segdir.end_block.
+*/
+static int fts3IsAppendable(Fts3Table *p, sqlite3_int64 iEnd, int *pbRes){
+  int bRes = 0;                   /* Result to set *pbRes to */
+  sqlite3_stmt *pCheck = 0;       /* Statement to query database with */
+  int rc;                         /* Return code */
+
+  rc = fts3SqlStmt(p, SQL_SEGMENT_IS_APPENDABLE, &pCheck, 0);
+  if( rc==SQLITE_OK ){
+    sqlite3_bind_int64(pCheck, 1, iEnd);
+    if( SQLITE_ROW==sqlite3_step(pCheck) ) bRes = 1;
+    rc = sqlite3_reset(pCheck);
+  }
+  
+  *pbRes = bRes;
+  return rc;
+}
+
+/*
+** This function is called when initializing an incremental-merge operation.
+** It checks if the existing segment with index value iIdx at absolute level 
+** (iAbsLevel+1) can be appended to by the incremental merge. If it can, the
+** merge-writer object *pWriter is initialized to write to it.
+**
+** An existing segment can be appended to by an incremental merge if:
+**
+**   * It was initially created as an appendable segment (with all required
+**     space pre-allocated), and
+**
+**   * The first key read from the input (arguments zKey and nKey) is 
+**     greater than the largest key currently stored in the potential
+**     output segment.
+*/
+static int fts3IncrmergeLoad(
+  Fts3Table *p,                   /* Fts3 table handle */
+  sqlite3_int64 iAbsLevel,        /* Absolute level of input segments */
+  int iIdx,                       /* Index of candidate output segment */
+  const char *zKey,               /* First key to write */
+  int nKey,                       /* Number of bytes in nKey */
+  IncrmergeWriter *pWriter        /* Populate this object */
+){
+  int rc;                         /* Return code */
+  sqlite3_stmt *pSelect = 0;      /* SELECT to read %_segdir entry */
+
+  rc = fts3SqlStmt(p, SQL_SELECT_SEGDIR, &pSelect, 0);
+  if( rc==SQLITE_OK ){
+    sqlite3_int64 iStart = 0;     /* Value of %_segdir.start_block */
+    sqlite3_int64 iLeafEnd = 0;   /* Value of %_segdir.leaves_end_block */
+    sqlite3_int64 iEnd = 0;       /* Value of %_segdir.end_block */
+    const char *aRoot = 0;        /* Pointer to %_segdir.root buffer */
+    int nRoot = 0;                /* Size of aRoot[] in bytes */
+    int rc2;                      /* Return code from sqlite3_reset() */
+    int bAppendable = 0;          /* Set to true if segment is appendable */
+
+    /* Read the %_segdir entry for index iIdx absolute level (iAbsLevel+1) */
+    sqlite3_bind_int64(pSelect, 1, iAbsLevel+1);
+    sqlite3_bind_int(pSelect, 2, iIdx);
+    if( sqlite3_step(pSelect)==SQLITE_ROW ){
+      iStart = sqlite3_column_int64(pSelect, 1);
+      iLeafEnd = sqlite3_column_int64(pSelect, 2);
+      fts3ReadEndBlockField(pSelect, 3, &iEnd, &pWriter->nLeafData);
+      if( pWriter->nLeafData<0 ){
+        pWriter->nLeafData = pWriter->nLeafData * -1;
+      }
+      pWriter->bNoLeafData = (pWriter->nLeafData==0);
+      nRoot = sqlite3_column_bytes(pSelect, 4);
+      aRoot = sqlite3_column_blob(pSelect, 4);
+      if( aRoot==0 ){
+        sqlite3_reset(pSelect);
+        return nRoot ? SQLITE_NOMEM : FTS_CORRUPT_VTAB;
+      }
+    }else{
+      return sqlite3_reset(pSelect);
+    }
+
+    /* Check for the zero-length marker in the %_segments table */
+    rc = fts3IsAppendable(p, iEnd, &bAppendable);
+
+    /* Check that zKey/nKey is larger than the largest key the candidate */
+    if( rc==SQLITE_OK && bAppendable ){
+      char *aLeaf = 0;
+      int nLeaf = 0;
+
+      rc = sqlite3Fts3ReadBlock(p, iLeafEnd, &aLeaf, &nLeaf, 0);
+      if( rc==SQLITE_OK ){
+        NodeReader reader;
+        for(rc = nodeReaderInit(&reader, aLeaf, nLeaf);
+            rc==SQLITE_OK && reader.aNode;
+            rc = nodeReaderNext(&reader)
+        ){
+          assert( reader.aNode );
+        }
+        if( fts3TermCmp(zKey, nKey, reader.term.a, reader.term.n)<=0 ){
+          bAppendable = 0;
+        }
+        nodeReaderRelease(&reader);
+      }
+      sqlite3_free(aLeaf);
+    }
+
+    if( rc==SQLITE_OK && bAppendable ){
+      /* It is possible to append to this segment. Set up the IncrmergeWriter
+      ** object to do so.  */
+      int i;
+      int nHeight = (int)aRoot[0];
+      NodeWriter *pNode;
+      if( nHeight<1 || nHeight>=FTS_MAX_APPENDABLE_HEIGHT ){
+        sqlite3_reset(pSelect);
+        return FTS_CORRUPT_VTAB;
+      }
+
+      pWriter->nLeafEst = (int)((iEnd - iStart) + 1)/FTS_MAX_APPENDABLE_HEIGHT;
+      pWriter->iStart = iStart;
+      pWriter->iEnd = iEnd;
+      pWriter->iAbsLevel = iAbsLevel;
+      pWriter->iIdx = iIdx;
+
+      for(i=nHeight+1; i<FTS_MAX_APPENDABLE_HEIGHT; i++){
+        pWriter->aNodeWriter[i].iBlock = pWriter->iStart + i*pWriter->nLeafEst;
+      }
+
+      pNode = &pWriter->aNodeWriter[nHeight];
+      pNode->iBlock = pWriter->iStart + pWriter->nLeafEst*nHeight;
+      blobGrowBuffer(&pNode->block, 
+          MAX(nRoot, p->nNodeSize)+FTS3_NODE_PADDING, &rc
+      );
+      if( rc==SQLITE_OK ){
+        memcpy(pNode->block.a, aRoot, nRoot);
+        pNode->block.n = nRoot;
+        memset(&pNode->block.a[nRoot], 0, FTS3_NODE_PADDING);
+      }
+
+      for(i=nHeight; i>=0 && rc==SQLITE_OK; i--){
+        NodeReader reader;
+        memset(&reader, 0, sizeof(reader));
+        pNode = &pWriter->aNodeWriter[i];
+
+        if( pNode->block.a){
+          rc = nodeReaderInit(&reader, pNode->block.a, pNode->block.n);
+          while( reader.aNode && rc==SQLITE_OK ) rc = nodeReaderNext(&reader);
+          blobGrowBuffer(&pNode->key, reader.term.n, &rc);
+          if( rc==SQLITE_OK ){
+            assert_fts3_nc( reader.term.n>0 || reader.aNode==0 );
+            if( reader.term.n>0 ){
+              memcpy(pNode->key.a, reader.term.a, reader.term.n);
+            }
+            pNode->key.n = reader.term.n;
+            if( i>0 ){
+              char *aBlock = 0;
+              int nBlock = 0;
+              pNode = &pWriter->aNodeWriter[i-1];
+              pNode->iBlock = reader.iChild;
+              rc = sqlite3Fts3ReadBlock(p, reader.iChild, &aBlock, &nBlock,0);
+              blobGrowBuffer(&pNode->block, 
+                  MAX(nBlock, p->nNodeSize)+FTS3_NODE_PADDING, &rc
+              );
+              if( rc==SQLITE_OK ){
+                memcpy(pNode->block.a, aBlock, nBlock);
+                pNode->block.n = nBlock;
+                memset(&pNode->block.a[nBlock], 0, FTS3_NODE_PADDING);
+              }
+              sqlite3_free(aBlock);
+            }
+          }
+        }
+        nodeReaderRelease(&reader);
+      }
+    }
+
+    rc2 = sqlite3_reset(pSelect);
+    if( rc==SQLITE_OK ) rc = rc2;
+  }
+
+  return rc;
+}
+
+/*
+** Determine the largest segment index value that exists within absolute
+** level iAbsLevel+1. If no error occurs, set *piIdx to this value plus
+** one before returning SQLITE_OK. Or, if there are no segments at all 
+** within level iAbsLevel, set *piIdx to zero.
+**
+** If an error occurs, return an SQLite error code. The final value of
+** *piIdx is undefined in this case.
+*/
+static int fts3IncrmergeOutputIdx( 
+  Fts3Table *p,                   /* FTS Table handle */
+  sqlite3_int64 iAbsLevel,        /* Absolute index of input segments */
+  int *piIdx                      /* OUT: Next free index at iAbsLevel+1 */
+){
+  int rc;
+  sqlite3_stmt *pOutputIdx = 0;   /* SQL used to find output index */
+
+  rc = fts3SqlStmt(p, SQL_NEXT_SEGMENT_INDEX, &pOutputIdx, 0);
+  if( rc==SQLITE_OK ){
+    sqlite3_bind_int64(pOutputIdx, 1, iAbsLevel+1);
+    sqlite3_step(pOutputIdx);
+    *piIdx = sqlite3_column_int(pOutputIdx, 0);
+    rc = sqlite3_reset(pOutputIdx);
+  }
+
+  return rc;
+}
+
+/* 
+** Allocate an appendable output segment on absolute level iAbsLevel+1
+** with idx value iIdx.
+**
+** In the %_segdir table, a segment is defined by the values in three
+** columns:
+**
+**     start_block
+**     leaves_end_block
+**     end_block
+**
+** When an appendable segment is allocated, it is estimated that the
+** maximum number of leaf blocks that may be required is the sum of the
+** number of leaf blocks consumed by the input segments, plus the number
+** of input segments, multiplied by two. This value is stored in stack 
+** variable nLeafEst.
+**
+** A total of 16*nLeafEst blocks are allocated when an appendable segment
+** is created ((1 + end_block - start_block)==16*nLeafEst). The contiguous
+** array of leaf nodes starts at the first block allocated. The array
+** of interior nodes that are parents of the leaf nodes start at block
+** (start_block + (1 + end_block - start_block) / 16). And so on.
+**
+** In the actual code below, the value "16" is replaced with the 
+** pre-processor macro FTS_MAX_APPENDABLE_HEIGHT.
+*/
+static int fts3IncrmergeWriter( 
+  Fts3Table *p,                   /* Fts3 table handle */
+  sqlite3_int64 iAbsLevel,        /* Absolute level of input segments */
+  int iIdx,                       /* Index of new output segment */
+  Fts3MultiSegReader *pCsr,       /* Cursor that data will be read from */
+  IncrmergeWriter *pWriter        /* Populate this object */
+){
+  int rc;                         /* Return Code */
+  int i;                          /* Iterator variable */
+  int nLeafEst = 0;               /* Blocks allocated for leaf nodes */
+  sqlite3_stmt *pLeafEst = 0;     /* SQL used to determine nLeafEst */
+  sqlite3_stmt *pFirstBlock = 0;  /* SQL used to determine first block */
+
+  /* Calculate nLeafEst. */
+  rc = fts3SqlStmt(p, SQL_MAX_LEAF_NODE_ESTIMATE, &pLeafEst, 0);
+  if( rc==SQLITE_OK ){
+    sqlite3_bind_int64(pLeafEst, 1, iAbsLevel);
+    sqlite3_bind_int64(pLeafEst, 2, pCsr->nSegment);
+    if( SQLITE_ROW==sqlite3_step(pLeafEst) ){
+      nLeafEst = sqlite3_column_int(pLeafEst, 0);
+    }
+    rc = sqlite3_reset(pLeafEst);
+  }
+  if( rc!=SQLITE_OK ) return rc;
+
+  /* Calculate the first block to use in the output segment */
+  rc = fts3SqlStmt(p, SQL_NEXT_SEGMENTS_ID, &pFirstBlock, 0);
+  if( rc==SQLITE_OK ){
+    if( SQLITE_ROW==sqlite3_step(pFirstBlock) ){
+      pWriter->iStart = sqlite3_column_int64(pFirstBlock, 0);
+      pWriter->iEnd = pWriter->iStart - 1;
+      pWriter->iEnd += nLeafEst * FTS_MAX_APPENDABLE_HEIGHT;
+    }
+    rc = sqlite3_reset(pFirstBlock);
+  }
+  if( rc!=SQLITE_OK ) return rc;
+
+  /* Insert the marker in the %_segments table to make sure nobody tries
+  ** to steal the space just allocated. This is also used to identify 
+  ** appendable segments.  */
+  rc = fts3WriteSegment(p, pWriter->iEnd, 0, 0);
+  if( rc!=SQLITE_OK ) return rc;
+
+  pWriter->iAbsLevel = iAbsLevel;
+  pWriter->nLeafEst = nLeafEst;
+  pWriter->iIdx = iIdx;
+
+  /* Set up the array of NodeWriter objects */
+  for(i=0; i<FTS_MAX_APPENDABLE_HEIGHT; i++){
+    pWriter->aNodeWriter[i].iBlock = pWriter->iStart + i*pWriter->nLeafEst;
+  }
+  return SQLITE_OK;
+}
+
+/*
+** Remove an entry from the %_segdir table. This involves running the 
+** following two statements:
+**
+**   DELETE FROM %_segdir WHERE level = :iAbsLevel AND idx = :iIdx
+**   UPDATE %_segdir SET idx = idx - 1 WHERE level = :iAbsLevel AND idx > :iIdx
+**
+** The DELETE statement removes the specific %_segdir level. The UPDATE 
+** statement ensures that the remaining segments have contiguously allocated
+** idx values.
+*/
+static int fts3RemoveSegdirEntry(
+  Fts3Table *p,                   /* FTS3 table handle */
+  sqlite3_int64 iAbsLevel,        /* Absolute level to delete from */
+  int iIdx                        /* Index of %_segdir entry to delete */
+){
+  int rc;                         /* Return code */
+  sqlite3_stmt *pDelete = 0;      /* DELETE statement */
+
+  rc = fts3SqlStmt(p, SQL_DELETE_SEGDIR_ENTRY, &pDelete, 0);
+  if( rc==SQLITE_OK ){
+    sqlite3_bind_int64(pDelete, 1, iAbsLevel);
+    sqlite3_bind_int(pDelete, 2, iIdx);
+    sqlite3_step(pDelete);
+    rc = sqlite3_reset(pDelete);
+  }
+
+  return rc;
+}
+
+/*
+** One or more segments have just been removed from absolute level iAbsLevel.
+** Update the 'idx' values of the remaining segments in the level so that
+** the idx values are a contiguous sequence starting from 0.
+*/
+static int fts3RepackSegdirLevel(
+  Fts3Table *p,                   /* FTS3 table handle */
+  sqlite3_int64 iAbsLevel         /* Absolute level to repack */
+){
+  int rc;                         /* Return code */
+  int *aIdx = 0;                  /* Array of remaining idx values */
+  int nIdx = 0;                   /* Valid entries in aIdx[] */
+  int nAlloc = 0;                 /* Allocated size of aIdx[] */
+  int i;                          /* Iterator variable */
+  sqlite3_stmt *pSelect = 0;      /* Select statement to read idx values */
+  sqlite3_stmt *pUpdate = 0;      /* Update statement to modify idx values */
+
+  rc = fts3SqlStmt(p, SQL_SELECT_INDEXES, &pSelect, 0);
+  if( rc==SQLITE_OK ){
+    int rc2;
+    sqlite3_bind_int64(pSelect, 1, iAbsLevel);
+    while( SQLITE_ROW==sqlite3_step(pSelect) ){
+      if( nIdx>=nAlloc ){
+        int *aNew;
+        nAlloc += 16;
+        aNew = sqlite3_realloc64(aIdx, nAlloc*sizeof(int));
+        if( !aNew ){
+          rc = SQLITE_NOMEM;
+          break;
+        }
+        aIdx = aNew;
+      }
+      aIdx[nIdx++] = sqlite3_column_int(pSelect, 0);
+    }
+    rc2 = sqlite3_reset(pSelect);
+    if( rc==SQLITE_OK ) rc = rc2;
+  }
+
+  if( rc==SQLITE_OK ){
+    rc = fts3SqlStmt(p, SQL_SHIFT_SEGDIR_ENTRY, &pUpdate, 0);
+  }
+  if( rc==SQLITE_OK ){
+    sqlite3_bind_int64(pUpdate, 2, iAbsLevel);
+  }
+
+  assert( p->bIgnoreSavepoint==0 );
+  p->bIgnoreSavepoint = 1;
+  for(i=0; rc==SQLITE_OK && i<nIdx; i++){
+    if( aIdx[i]!=i ){
+      sqlite3_bind_int(pUpdate, 3, aIdx[i]);
+      sqlite3_bind_int(pUpdate, 1, i);
+      sqlite3_step(pUpdate);
+      rc = sqlite3_reset(pUpdate);
+    }
+  }
+  p->bIgnoreSavepoint = 0;
+
+  sqlite3_free(aIdx);
+  return rc;
+}
+
+static void fts3StartNode(Blob *pNode, int iHeight, sqlite3_int64 iChild){
+  pNode->a[0] = (char)iHeight;
+  if( iChild ){
+    assert( pNode->nAlloc>=1+sqlite3Fts3VarintLen(iChild) );
+    pNode->n = 1 + sqlite3Fts3PutVarint(&pNode->a[1], iChild);
+  }else{
+    assert( pNode->nAlloc>=1 );
+    pNode->n = 1;
+  }
+}
+
+/*
+** The first two arguments are a pointer to and the size of a segment b-tree
+** node. The node may be a leaf or an internal node.
+**
+** This function creates a new node image in blob object *pNew by copying
+** all terms that are greater than or equal to zTerm/nTerm (for leaf nodes)
+** or greater than zTerm/nTerm (for internal nodes) from aNode/nNode.
+*/
+static int fts3TruncateNode(
+  const char *aNode,              /* Current node image */
+  int nNode,                      /* Size of aNode in bytes */
+  Blob *pNew,                     /* OUT: Write new node image here */
+  const char *zTerm,              /* Omit all terms smaller than this */
+  int nTerm,                      /* Size of zTerm in bytes */
+  sqlite3_int64 *piBlock          /* OUT: Block number in next layer down */
+){
+  NodeReader reader;              /* Reader object */
+  Blob prev = {0, 0, 0};          /* Previous term written to new node */
+  int rc = SQLITE_OK;             /* Return code */
+  int bLeaf;                       /* True for a leaf node */
+
+  if( nNode<1 ) return FTS_CORRUPT_VTAB;
+  bLeaf = aNode[0]=='\0';
+
+  /* Allocate required output space */
+  blobGrowBuffer(pNew, nNode, &rc);
+  if( rc!=SQLITE_OK ) return rc;
+  pNew->n = 0;
+
+  /* Populate new node buffer */
+  for(rc = nodeReaderInit(&reader, aNode, nNode); 
+      rc==SQLITE_OK && reader.aNode; 
+      rc = nodeReaderNext(&reader)
+  ){
+    if( pNew->n==0 ){
+      int res = fts3TermCmp(reader.term.a, reader.term.n, zTerm, nTerm);
+      if( res<0 || (bLeaf==0 && res==0) ) continue;
+      fts3StartNode(pNew, (int)aNode[0], reader.iChild);
+      *piBlock = reader.iChild;
+    }
+    rc = fts3AppendToNode(
+        pNew, &prev, reader.term.a, reader.term.n,
+        reader.aDoclist, reader.nDoclist
+    );
+    if( rc!=SQLITE_OK ) break;
+  }
+  if( pNew->n==0 ){
+    fts3StartNode(pNew, (int)aNode[0], reader.iChild);
+    *piBlock = reader.iChild;
+  }
+  assert( pNew->n<=pNew->nAlloc );
+
+  nodeReaderRelease(&reader);
+  sqlite3_free(prev.a);
+  return rc;
+}
+
+/*
+** Remove all terms smaller than zTerm/nTerm from segment iIdx in absolute 
+** level iAbsLevel. This may involve deleting entries from the %_segments
+** table, and modifying existing entries in both the %_segments and %_segdir
+** tables.
+**
+** SQLITE_OK is returned if the segment is updated successfully. Or an
+** SQLite error code otherwise.
+*/
+static int fts3TruncateSegment(
+  Fts3Table *p,                   /* FTS3 table handle */
+  sqlite3_int64 iAbsLevel,        /* Absolute level of segment to modify */
+  int iIdx,                       /* Index within level of segment to modify */
+  const char *zTerm,              /* Remove terms smaller than this */
+  int nTerm                      /* Number of bytes in buffer zTerm */
+){
+  int rc = SQLITE_OK;             /* Return code */
+  Blob root = {0,0,0};            /* New root page image */
+  Blob block = {0,0,0};           /* Buffer used for any other block */
+  sqlite3_int64 iBlock = 0;       /* Block id */
+  sqlite3_int64 iNewStart = 0;    /* New value for iStartBlock */
+  sqlite3_int64 iOldStart = 0;    /* Old value for iStartBlock */
+  sqlite3_stmt *pFetch = 0;       /* Statement used to fetch segdir */
+
+  rc = fts3SqlStmt(p, SQL_SELECT_SEGDIR, &pFetch, 0);
+  if( rc==SQLITE_OK ){
+    int rc2;                      /* sqlite3_reset() return code */
+    sqlite3_bind_int64(pFetch, 1, iAbsLevel);
+    sqlite3_bind_int(pFetch, 2, iIdx);
+    if( SQLITE_ROW==sqlite3_step(pFetch) ){
+      const char *aRoot = sqlite3_column_blob(pFetch, 4);
+      int nRoot = sqlite3_column_bytes(pFetch, 4);
+      iOldStart = sqlite3_column_int64(pFetch, 1);
+      rc = fts3TruncateNode(aRoot, nRoot, &root, zTerm, nTerm, &iBlock);
+    }
+    rc2 = sqlite3_reset(pFetch);
+    if( rc==SQLITE_OK ) rc = rc2;
+  }
+
+  while( rc==SQLITE_OK && iBlock ){
+    char *aBlock = 0;
+    int nBlock = 0;
+    iNewStart = iBlock;
+
+    rc = sqlite3Fts3ReadBlock(p, iBlock, &aBlock, &nBlock, 0);
+    if( rc==SQLITE_OK ){
+      rc = fts3TruncateNode(aBlock, nBlock, &block, zTerm, nTerm, &iBlock);
+    }
+    if( rc==SQLITE_OK ){
+      rc = fts3WriteSegment(p, iNewStart, block.a, block.n);
+    }
+    sqlite3_free(aBlock);
+  }
+
+  /* Variable iNewStart now contains the first valid leaf node. */
+  if( rc==SQLITE_OK && iNewStart ){
+    sqlite3_stmt *pDel = 0;
+    rc = fts3SqlStmt(p, SQL_DELETE_SEGMENTS_RANGE, &pDel, 0);
+    if( rc==SQLITE_OK ){
+      sqlite3_bind_int64(pDel, 1, iOldStart);
+      sqlite3_bind_int64(pDel, 2, iNewStart-1);
+      sqlite3_step(pDel);
+      rc = sqlite3_reset(pDel);
+    }
+  }
+
+  if( rc==SQLITE_OK ){
+    sqlite3_stmt *pChomp = 0;
+    rc = fts3SqlStmt(p, SQL_CHOMP_SEGDIR, &pChomp, 0);
+    if( rc==SQLITE_OK ){
+      sqlite3_bind_int64(pChomp, 1, iNewStart);
+      sqlite3_bind_blob(pChomp, 2, root.a, root.n, SQLITE_STATIC);
+      sqlite3_bind_int64(pChomp, 3, iAbsLevel);
+      sqlite3_bind_int(pChomp, 4, iIdx);
+      sqlite3_step(pChomp);
+      rc = sqlite3_reset(pChomp);
+      sqlite3_bind_null(pChomp, 2);
+    }
+  }
+
+  sqlite3_free(root.a);
+  sqlite3_free(block.a);
+  return rc;
+}
+
+/*
+** This function is called after an incrmental-merge operation has run to
+** merge (or partially merge) two or more segments from absolute level
+** iAbsLevel.
+**
+** Each input segment is either removed from the db completely (if all of
+** its data was copied to the output segment by the incrmerge operation)
+** or modified in place so that it no longer contains those entries that
+** have been duplicated in the output segment.
+*/
+static int fts3IncrmergeChomp(
+  Fts3Table *p,                   /* FTS table handle */
+  sqlite3_int64 iAbsLevel,        /* Absolute level containing segments */
+  Fts3MultiSegReader *pCsr,       /* Chomp all segments opened by this cursor */
+  int *pnRem                      /* Number of segments not deleted */
+){
+  int i;
+  int nRem = 0;
+  int rc = SQLITE_OK;
+
+  for(i=pCsr->nSegment-1; i>=0 && rc==SQLITE_OK; i--){
+    Fts3SegReader *pSeg = 0;
+    int j;
+
+    /* Find the Fts3SegReader object with Fts3SegReader.iIdx==i. It is hiding
+    ** somewhere in the pCsr->apSegment[] array.  */
+    for(j=0; ALWAYS(j<pCsr->nSegment); j++){
+      pSeg = pCsr->apSegment[j];
+      if( pSeg->iIdx==i ) break;
+    }
+    assert( j<pCsr->nSegment && pSeg->iIdx==i );
+
+    if( pSeg->aNode==0 ){
+      /* Seg-reader is at EOF. Remove the entire input segment. */
+      rc = fts3DeleteSegment(p, pSeg);
+      if( rc==SQLITE_OK ){
+        rc = fts3RemoveSegdirEntry(p, iAbsLevel, pSeg->iIdx);
+      }
+      *pnRem = 0;
+    }else{
+      /* The incremental merge did not copy all the data from this 
+      ** segment to the upper level. The segment is modified in place
+      ** so that it contains no keys smaller than zTerm/nTerm. */ 
+      const char *zTerm = pSeg->zTerm;
+      int nTerm = pSeg->nTerm;
+      rc = fts3TruncateSegment(p, iAbsLevel, pSeg->iIdx, zTerm, nTerm);
+      nRem++;
+    }
+  }
+
+  if( rc==SQLITE_OK && nRem!=pCsr->nSegment ){
+    rc = fts3RepackSegdirLevel(p, iAbsLevel);
+  }
+
+  *pnRem = nRem;
+  return rc;
+}
+
+/*
+** Store an incr-merge hint in the database.
+*/
+static int fts3IncrmergeHintStore(Fts3Table *p, Blob *pHint){
+  sqlite3_stmt *pReplace = 0;
+  int rc;                         /* Return code */
+
+  rc = fts3SqlStmt(p, SQL_REPLACE_STAT, &pReplace, 0);
+  if( rc==SQLITE_OK ){
+    sqlite3_bind_int(pReplace, 1, FTS_STAT_INCRMERGEHINT);
+    sqlite3_bind_blob(pReplace, 2, pHint->a, pHint->n, SQLITE_STATIC);
+    sqlite3_step(pReplace);
+    rc = sqlite3_reset(pReplace);
+    sqlite3_bind_null(pReplace, 2);
+  }
+
+  return rc;
+}
+
+/*
+** Load an incr-merge hint from the database. The incr-merge hint, if one 
+** exists, is stored in the rowid==1 row of the %_stat table.
+**
+** If successful, populate blob *pHint with the value read from the %_stat
+** table and return SQLITE_OK. Otherwise, if an error occurs, return an
+** SQLite error code.
+*/
+static int fts3IncrmergeHintLoad(Fts3Table *p, Blob *pHint){
+  sqlite3_stmt *pSelect = 0;
+  int rc;
+
+  pHint->n = 0;
+  rc = fts3SqlStmt(p, SQL_SELECT_STAT, &pSelect, 0);
+  if( rc==SQLITE_OK ){
+    int rc2;
+    sqlite3_bind_int(pSelect, 1, FTS_STAT_INCRMERGEHINT);
+    if( SQLITE_ROW==sqlite3_step(pSelect) ){
+      const char *aHint = sqlite3_column_blob(pSelect, 0);
+      int nHint = sqlite3_column_bytes(pSelect, 0);
+      if( aHint ){
+        blobGrowBuffer(pHint, nHint, &rc);
+        if( rc==SQLITE_OK ){
+          if( ALWAYS(pHint->a!=0) ) memcpy(pHint->a, aHint, nHint);
+          pHint->n = nHint;
+        }
+      }
+    }
+    rc2 = sqlite3_reset(pSelect);
+    if( rc==SQLITE_OK ) rc = rc2;
+  }
+
+  return rc;
+}
+
+/*
+** If *pRc is not SQLITE_OK when this function is called, it is a no-op.
+** Otherwise, append an entry to the hint stored in blob *pHint. Each entry
+** consists of two varints, the absolute level number of the input segments 
+** and the number of input segments.
+**
+** If successful, leave *pRc set to SQLITE_OK and return. If an error occurs,
+** set *pRc to an SQLite error code before returning.
+*/
+static void fts3IncrmergeHintPush(
+  Blob *pHint,                    /* Hint blob to append to */
+  i64 iAbsLevel,                  /* First varint to store in hint */
+  int nInput,                     /* Second varint to store in hint */
+  int *pRc                        /* IN/OUT: Error code */
+){
+  blobGrowBuffer(pHint, pHint->n + 2*FTS3_VARINT_MAX, pRc);
+  if( *pRc==SQLITE_OK ){
+    pHint->n += sqlite3Fts3PutVarint(&pHint->a[pHint->n], iAbsLevel);
+    pHint->n += sqlite3Fts3PutVarint(&pHint->a[pHint->n], (i64)nInput);
+  }
+}
+
+/*
+** Read the last entry (most recently pushed) from the hint blob *pHint
+** and then remove the entry. Write the two values read to *piAbsLevel and 
+** *pnInput before returning.
+**
+** If no error occurs, return SQLITE_OK. If the hint blob in *pHint does
+** not contain at least two valid varints, return SQLITE_CORRUPT_VTAB.
+*/
+static int fts3IncrmergeHintPop(Blob *pHint, i64 *piAbsLevel, int *pnInput){
+  const int nHint = pHint->n;
+  int i;
+
+  i = pHint->n-1;
+  if( (pHint->a[i] & 0x80) ) return FTS_CORRUPT_VTAB;
+  while( i>0 && (pHint->a[i-1] & 0x80) ) i--;
+  if( i==0 ) return FTS_CORRUPT_VTAB;
+  i--;
+  while( i>0 && (pHint->a[i-1] & 0x80) ) i--;
+
+  pHint->n = i;
+  i += sqlite3Fts3GetVarint(&pHint->a[i], piAbsLevel);
+  i += fts3GetVarint32(&pHint->a[i], pnInput);
+  assert( i<=nHint );
+  if( i!=nHint ) return FTS_CORRUPT_VTAB;
+
+  return SQLITE_OK;
+}
+
+
+/*
+** Attempt an incremental merge that writes nMerge leaf blocks.
+**
+** Incremental merges happen nMin segments at a time. The segments 
+** to be merged are the nMin oldest segments (the ones with the smallest 
+** values for the _segdir.idx field) in the highest level that contains 
+** at least nMin segments. Multiple merges might occur in an attempt to 
+** write the quota of nMerge leaf blocks.
+*/
+int sqlite3Fts3Incrmerge(Fts3Table *p, int nMerge, int nMin){
+  int rc;                         /* Return code */
+  int nRem = nMerge;              /* Number of leaf pages yet to  be written */
+  Fts3MultiSegReader *pCsr;       /* Cursor used to read input data */
+  Fts3SegFilter *pFilter;         /* Filter used with cursor pCsr */
+  IncrmergeWriter *pWriter;       /* Writer object */
+  int nSeg = 0;                   /* Number of input segments */
+  sqlite3_int64 iAbsLevel = 0;    /* Absolute level number to work on */
+  Blob hint = {0, 0, 0};          /* Hint read from %_stat table */
+  int bDirtyHint = 0;             /* True if blob 'hint' has been modified */
+
+  /* Allocate space for the cursor, filter and writer objects */
+  const int nAlloc = sizeof(*pCsr) + sizeof(*pFilter) + sizeof(*pWriter);
+  pWriter = (IncrmergeWriter *)sqlite3_malloc64(nAlloc);
+  if( !pWriter ) return SQLITE_NOMEM;
+  pFilter = (Fts3SegFilter *)&pWriter[1];
+  pCsr = (Fts3MultiSegReader *)&pFilter[1];
+
+  rc = fts3IncrmergeHintLoad(p, &hint);
+  while( rc==SQLITE_OK && nRem>0 ){
+    const i64 nMod = FTS3_SEGDIR_MAXLEVEL * p->nIndex;
+    sqlite3_stmt *pFindLevel = 0; /* SQL used to determine iAbsLevel */
+    int bUseHint = 0;             /* True if attempting to append */
+    int iIdx = 0;                 /* Largest idx in level (iAbsLevel+1) */
+
+    /* Search the %_segdir table for the absolute level with the smallest
+    ** relative level number that contains at least nMin segments, if any.
+    ** If one is found, set iAbsLevel to the absolute level number and
+    ** nSeg to nMin. If no level with at least nMin segments can be found, 
+    ** set nSeg to -1.
+    */
+    rc = fts3SqlStmt(p, SQL_FIND_MERGE_LEVEL, &pFindLevel, 0);
+    sqlite3_bind_int(pFindLevel, 1, MAX(2, nMin));
+    if( sqlite3_step(pFindLevel)==SQLITE_ROW ){
+      iAbsLevel = sqlite3_column_int64(pFindLevel, 0);
+      nSeg = sqlite3_column_int(pFindLevel, 1);
+      assert( nSeg>=2 );
+    }else{
+      nSeg = -1;
+    }
+    rc = sqlite3_reset(pFindLevel);
+
+    /* If the hint read from the %_stat table is not empty, check if the
+    ** last entry in it specifies a relative level smaller than or equal
+    ** to the level identified by the block above (if any). If so, this 
+    ** iteration of the loop will work on merging at the hinted level.
+    */
+    if( rc==SQLITE_OK && hint.n ){
+      int nHint = hint.n;
+      sqlite3_int64 iHintAbsLevel = 0;      /* Hint level */
+      int nHintSeg = 0;                     /* Hint number of segments */
+
+      rc = fts3IncrmergeHintPop(&hint, &iHintAbsLevel, &nHintSeg);
+      if( nSeg<0 || (iAbsLevel % nMod) >= (iHintAbsLevel % nMod) ){
+        /* Based on the scan in the block above, it is known that there
+        ** are no levels with a relative level smaller than that of
+        ** iAbsLevel with more than nSeg segments, or if nSeg is -1, 
+        ** no levels with more than nMin segments. Use this to limit the
+        ** value of nHintSeg to avoid a large memory allocation in case the 
+        ** merge-hint is corrupt*/
+        iAbsLevel = iHintAbsLevel;
+        nSeg = MIN(MAX(nMin,nSeg), nHintSeg);
+        bUseHint = 1;
+        bDirtyHint = 1;
+      }else{
+        /* This undoes the effect of the HintPop() above - so that no entry
+        ** is removed from the hint blob.  */
+        hint.n = nHint;
+      }
+    }
+
+    /* If nSeg is less that zero, then there is no level with at least
+    ** nMin segments and no hint in the %_stat table. No work to do.
+    ** Exit early in this case.  */
+    if( nSeg<=0 ) break;
+
+    assert( nMod<=0x7FFFFFFF );
+    if( iAbsLevel<0 || iAbsLevel>(nMod<<32) ){
+      rc = FTS_CORRUPT_VTAB;
+      break;
+    }
+
+    /* Open a cursor to iterate through the contents of the oldest nSeg 
+    ** indexes of absolute level iAbsLevel. If this cursor is opened using 
+    ** the 'hint' parameters, it is possible that there are less than nSeg
+    ** segments available in level iAbsLevel. In this case, no work is
+    ** done on iAbsLevel - fall through to the next iteration of the loop 
+    ** to start work on some other level.  */
+    memset(pWriter, 0, nAlloc);
+    pFilter->flags = FTS3_SEGMENT_REQUIRE_POS;
+
+    if( rc==SQLITE_OK ){
+      rc = fts3IncrmergeOutputIdx(p, iAbsLevel, &iIdx);
+      assert( bUseHint==1 || bUseHint==0 );
+      if( iIdx==0 || (bUseHint && iIdx==1) ){
+        int bIgnore = 0;
+        rc = fts3SegmentIsMaxLevel(p, iAbsLevel+1, &bIgnore);
+        if( bIgnore ){
+          pFilter->flags |= FTS3_SEGMENT_IGNORE_EMPTY;
+        }
+      }
+    }
+
+    if( rc==SQLITE_OK ){
+      rc = fts3IncrmergeCsr(p, iAbsLevel, nSeg, pCsr);
+    }
+    if( SQLITE_OK==rc && pCsr->nSegment==nSeg
+     && SQLITE_OK==(rc = sqlite3Fts3SegReaderStart(p, pCsr, pFilter))
+    ){
+      int bEmpty = 0;
+      rc = sqlite3Fts3SegReaderStep(p, pCsr);
+      if( rc==SQLITE_OK ){
+        bEmpty = 1;
+      }else if( rc!=SQLITE_ROW ){
+        sqlite3Fts3SegReaderFinish(pCsr);
+        break;
+      }
+      if( bUseHint && iIdx>0 ){
+        const char *zKey = pCsr->zTerm;
+        int nKey = pCsr->nTerm;
+        rc = fts3IncrmergeLoad(p, iAbsLevel, iIdx-1, zKey, nKey, pWriter);
+      }else{
+        rc = fts3IncrmergeWriter(p, iAbsLevel, iIdx, pCsr, pWriter);
+      }
+
+      if( rc==SQLITE_OK && pWriter->nLeafEst ){
+        fts3LogMerge(nSeg, iAbsLevel);
+        if( bEmpty==0 ){
+          do {
+            rc = fts3IncrmergeAppend(p, pWriter, pCsr);
+            if( rc==SQLITE_OK ) rc = sqlite3Fts3SegReaderStep(p, pCsr);
+            if( pWriter->nWork>=nRem && rc==SQLITE_ROW ) rc = SQLITE_OK;
+          }while( rc==SQLITE_ROW );
+        }
+
+        /* Update or delete the input segments */
+        if( rc==SQLITE_OK ){
+          nRem -= (1 + pWriter->nWork);
+          rc = fts3IncrmergeChomp(p, iAbsLevel, pCsr, &nSeg);
+          if( nSeg!=0 ){
+            bDirtyHint = 1;
+            fts3IncrmergeHintPush(&hint, iAbsLevel, nSeg, &rc);
+          }
+        }
+      }
+
+      if( nSeg!=0 ){
+        pWriter->nLeafData = pWriter->nLeafData * -1;
+      }
+      fts3IncrmergeRelease(p, pWriter, &rc);
+      if( nSeg==0 && pWriter->bNoLeafData==0 ){
+        fts3PromoteSegments(p, iAbsLevel+1, pWriter->nLeafData);
+      }
+    }
+
+    sqlite3Fts3SegReaderFinish(pCsr);
+  }
+
+  /* Write the hint values into the %_stat table for the next incr-merger */
+  if( bDirtyHint && rc==SQLITE_OK ){
+    rc = fts3IncrmergeHintStore(p, &hint);
+  }
+
+  sqlite3_free(pWriter);
+  sqlite3_free(hint.a);
+  return rc;
+}
+
+/*
+** Convert the text beginning at *pz into an integer and return
+** its value.  Advance *pz to point to the first character past
+** the integer.
+**
+** This function used for parameters to merge= and incrmerge=
+** commands. 
+*/
+static int fts3Getint(const char **pz){
+  const char *z = *pz;
+  int i = 0;
+  while( (*z)>='0' && (*z)<='9' && i<214748363 ) i = 10*i + *(z++) - '0';
+  *pz = z;
+  return i;
+}
+
+/*
+** Process statements of the form:
+**
+**    INSERT INTO table(table) VALUES('merge=A,B');
+**
+** A and B are integers that decode to be the number of leaf pages
+** written for the merge, and the minimum number of segments on a level
+** before it will be selected for a merge, respectively.
+*/
+static int fts3DoIncrmerge(
+  Fts3Table *p,                   /* FTS3 table handle */
+  const char *zParam              /* Nul-terminated string containing "A,B" */
+){
+  int rc;
+  int nMin = (MergeCount(p) / 2);
+  int nMerge = 0;
+  const char *z = zParam;
+
+  /* Read the first integer value */
+  nMerge = fts3Getint(&z);
+
+  /* If the first integer value is followed by a ',',  read the second
+  ** integer value. */
+  if( z[0]==',' && z[1]!='\0' ){
+    z++;
+    nMin = fts3Getint(&z);
+  }
+
+  if( z[0]!='\0' || nMin<2 ){
+    rc = SQLITE_ERROR;
+  }else{
+    rc = SQLITE_OK;
+    if( !p->bHasStat ){
+      assert( p->bFts4==0 );
+      sqlite3Fts3CreateStatTable(&rc, p);
+    }
+    if( rc==SQLITE_OK ){
+      rc = sqlite3Fts3Incrmerge(p, nMerge, nMin);
+    }
+    sqlite3Fts3SegmentsClose(p);
+  }
+  return rc;
+}
+
+/*
+** Process statements of the form:
+**
+**    INSERT INTO table(table) VALUES('automerge=X');
+**
+** where X is an integer.  X==0 means to turn automerge off.  X!=0 means
+** turn it on.  The setting is persistent.
+*/
+static int fts3DoAutoincrmerge(
+  Fts3Table *p,                   /* FTS3 table handle */
+  const char *zParam              /* Nul-terminated string containing boolean */
+){
+  int rc = SQLITE_OK;
+  sqlite3_stmt *pStmt = 0;
+  p->nAutoincrmerge = fts3Getint(&zParam);
+  if( p->nAutoincrmerge==1 || p->nAutoincrmerge>MergeCount(p) ){
+    p->nAutoincrmerge = 8;
+  }
+  if( !p->bHasStat ){
+    assert( p->bFts4==0 );
+    sqlite3Fts3CreateStatTable(&rc, p);
+    if( rc ) return rc;
+  }
+  rc = fts3SqlStmt(p, SQL_REPLACE_STAT, &pStmt, 0);
+  if( rc ) return rc;
+  sqlite3_bind_int(pStmt, 1, FTS_STAT_AUTOINCRMERGE);
+  sqlite3_bind_int(pStmt, 2, p->nAutoincrmerge);
+  sqlite3_step(pStmt);
+  rc = sqlite3_reset(pStmt);
+  return rc;
+}
+
+/*
+** Return a 64-bit checksum for the FTS index entry specified by the
+** arguments to this function.
+*/
+static u64 fts3ChecksumEntry(
+  const char *zTerm,              /* Pointer to buffer containing term */
+  int nTerm,                      /* Size of zTerm in bytes */
+  int iLangid,                    /* Language id for current row */
+  int iIndex,                     /* Index (0..Fts3Table.nIndex-1) */
+  i64 iDocid,                     /* Docid for current row. */
+  int iCol,                       /* Column number */
+  int iPos                        /* Position */
+){
+  int i;
+  u64 ret = (u64)iDocid;
+
+  ret += (ret<<3) + iLangid;
+  ret += (ret<<3) + iIndex;
+  ret += (ret<<3) + iCol;
+  ret += (ret<<3) + iPos;
+  for(i=0; i<nTerm; i++) ret += (ret<<3) + zTerm[i];
+
+  return ret;
+}
+
+/*
+** Return a checksum of all entries in the FTS index that correspond to
+** language id iLangid. The checksum is calculated by XORing the checksums
+** of each individual entry (see fts3ChecksumEntry()) together.
+**
+** If successful, the checksum value is returned and *pRc set to SQLITE_OK.
+** Otherwise, if an error occurs, *pRc is set to an SQLite error code. The
+** return value is undefined in this case.
+*/
+static u64 fts3ChecksumIndex(
+  Fts3Table *p,                   /* FTS3 table handle */
+  int iLangid,                    /* Language id to return cksum for */
+  int iIndex,                     /* Index to cksum (0..p->nIndex-1) */
+  int *pRc                        /* OUT: Return code */
+){
+  Fts3SegFilter filter;
+  Fts3MultiSegReader csr;
+  int rc;
+  u64 cksum = 0;
+
+  if( *pRc ) return 0;
+
+  memset(&filter, 0, sizeof(filter));
+  memset(&csr, 0, sizeof(csr));
+  filter.flags =  FTS3_SEGMENT_REQUIRE_POS|FTS3_SEGMENT_IGNORE_EMPTY;
+  filter.flags |= FTS3_SEGMENT_SCAN;
+
+  rc = sqlite3Fts3SegReaderCursor(
+      p, iLangid, iIndex, FTS3_SEGCURSOR_ALL, 0, 0, 0, 1,&csr
+  );
+  if( rc==SQLITE_OK ){
+    rc = sqlite3Fts3SegReaderStart(p, &csr, &filter);
+  }
+
+  if( rc==SQLITE_OK ){
+    while( SQLITE_ROW==(rc = sqlite3Fts3SegReaderStep(p, &csr)) ){
+      char *pCsr = csr.aDoclist;
+      char *pEnd = &pCsr[csr.nDoclist];
+
+      i64 iDocid = 0;
+      i64 iCol = 0;
+      u64 iPos = 0;
+
+      pCsr += sqlite3Fts3GetVarint(pCsr, &iDocid);
+      while( pCsr<pEnd ){
+        u64 iVal = 0;
+        pCsr += sqlite3Fts3GetVarintU(pCsr, &iVal);
+        if( pCsr<pEnd ){
+          if( iVal==0 || iVal==1 ){
+            iCol = 0;
+            iPos = 0;
+            if( iVal ){
+              pCsr += sqlite3Fts3GetVarint(pCsr, &iCol);
+            }else{
+              pCsr += sqlite3Fts3GetVarintU(pCsr, &iVal);
+              if( p->bDescIdx ){
+                iDocid = (i64)((u64)iDocid - iVal);
+              }else{
+                iDocid = (i64)((u64)iDocid + iVal);
+              }
+            }
+          }else{
+            iPos += (iVal - 2);
+            cksum = cksum ^ fts3ChecksumEntry(
+                csr.zTerm, csr.nTerm, iLangid, iIndex, iDocid,
+                (int)iCol, (int)iPos
+            );
+          }
+        }
+      }
+    }
+  }
+  sqlite3Fts3SegReaderFinish(&csr);
+
+  *pRc = rc;
+  return cksum;
+}
+
+/*
+** Check if the contents of the FTS index match the current contents of the
+** content table. If no error occurs and the contents do match, set *pbOk
+** to true and return SQLITE_OK. Or if the contents do not match, set *pbOk
+** to false before returning.
+**
+** If an error occurs (e.g. an OOM or IO error), return an SQLite error 
+** code. The final value of *pbOk is undefined in this case.
+*/
+int sqlite3Fts3IntegrityCheck(Fts3Table *p, int *pbOk){
+  int rc = SQLITE_OK;             /* Return code */
+  u64 cksum1 = 0;                 /* Checksum based on FTS index contents */
+  u64 cksum2 = 0;                 /* Checksum based on %_content contents */
+  sqlite3_stmt *pAllLangid = 0;   /* Statement to return all language-ids */
+
+  /* This block calculates the checksum according to the FTS index. */
+  rc = fts3SqlStmt(p, SQL_SELECT_ALL_LANGID, &pAllLangid, 0);
+  if( rc==SQLITE_OK ){
+    int rc2;
+    sqlite3_bind_int(pAllLangid, 1, p->iPrevLangid);
+    sqlite3_bind_int(pAllLangid, 2, p->nIndex);
+    while( rc==SQLITE_OK && sqlite3_step(pAllLangid)==SQLITE_ROW ){
+      int iLangid = sqlite3_column_int(pAllLangid, 0);
+      int i;
+      for(i=0; i<p->nIndex; i++){
+        cksum1 = cksum1 ^ fts3ChecksumIndex(p, iLangid, i, &rc);
+      }
+    }
+    rc2 = sqlite3_reset(pAllLangid);
+    if( rc==SQLITE_OK ) rc = rc2;
+  }
+
+  /* This block calculates the checksum according to the %_content table */
+  if( rc==SQLITE_OK ){
+    sqlite3_tokenizer_module const *pModule = p->pTokenizer->pModule;
+    sqlite3_stmt *pStmt = 0;
+    char *zSql;
+   
+    zSql = sqlite3_mprintf("SELECT %s" , p->zReadExprlist);
+    if( !zSql ){
+      rc = SQLITE_NOMEM;
+    }else{
+      rc = sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0);
+      sqlite3_free(zSql);
+    }
+
+    while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pStmt) ){
+      i64 iDocid = sqlite3_column_int64(pStmt, 0);
+      int iLang = langidFromSelect(p, pStmt);
+      int iCol;
+
+      for(iCol=0; rc==SQLITE_OK && iCol<p->nColumn; iCol++){
+        if( p->abNotindexed[iCol]==0 ){
+          const char *zText = (const char *)sqlite3_column_text(pStmt, iCol+1);
+          sqlite3_tokenizer_cursor *pT = 0;
+
+          rc = sqlite3Fts3OpenTokenizer(p->pTokenizer, iLang, zText, -1, &pT);
+          while( rc==SQLITE_OK ){
+            char const *zToken;       /* Buffer containing token */
+            int nToken = 0;           /* Number of bytes in token */
+            int iDum1 = 0, iDum2 = 0; /* Dummy variables */
+            int iPos = 0;             /* Position of token in zText */
+
+            rc = pModule->xNext(pT, &zToken, &nToken, &iDum1, &iDum2, &iPos);
+            if( rc==SQLITE_OK ){
+              int i;
+              cksum2 = cksum2 ^ fts3ChecksumEntry(
+                  zToken, nToken, iLang, 0, iDocid, iCol, iPos
+              );
+              for(i=1; i<p->nIndex; i++){
+                if( p->aIndex[i].nPrefix<=nToken ){
+                  cksum2 = cksum2 ^ fts3ChecksumEntry(
+                      zToken, p->aIndex[i].nPrefix, iLang, i, iDocid, iCol, iPos
+                  );
+                }
+              }
+            }
+          }
+          if( pT ) pModule->xClose(pT);
+          if( rc==SQLITE_DONE ) rc = SQLITE_OK;
+        }
+      }
+    }
+
+    sqlite3_finalize(pStmt);
+  }
+
+  if( rc==SQLITE_CORRUPT_VTAB ){
+    rc = SQLITE_OK;
+    *pbOk = 0;
+  }else{
+    *pbOk = (rc==SQLITE_OK && cksum1==cksum2);
+  }
+  return rc;
+}
+
+/*
+** Run the integrity-check. If no error occurs and the current contents of
+** the FTS index are correct, return SQLITE_OK. Or, if the contents of the
+** FTS index are incorrect, return SQLITE_CORRUPT_VTAB.
+**
+** Or, if an error (e.g. an OOM or IO error) occurs, return an SQLite 
+** error code.
+**
+** The integrity-check works as follows. For each token and indexed token
+** prefix in the document set, a 64-bit checksum is calculated (by code
+** in fts3ChecksumEntry()) based on the following:
+**
+**     + The index number (0 for the main index, 1 for the first prefix
+**       index etc.),
+**     + The token (or token prefix) text itself, 
+**     + The language-id of the row it appears in,
+**     + The docid of the row it appears in,
+**     + The column it appears in, and
+**     + The tokens position within that column.
+**
+** The checksums for all entries in the index are XORed together to create
+** a single checksum for the entire index.
+**
+** The integrity-check code calculates the same checksum in two ways:
+**
+**     1. By scanning the contents of the FTS index, and 
+**     2. By scanning and tokenizing the content table.
+**
+** If the two checksums are identical, the integrity-check is deemed to have
+** passed.
+*/
+static int fts3DoIntegrityCheck(
+  Fts3Table *p                    /* FTS3 table handle */
+){
+  int rc;
+  int bOk = 0;
+  rc = sqlite3Fts3IntegrityCheck(p, &bOk);
+  if( rc==SQLITE_OK && bOk==0 ) rc = FTS_CORRUPT_VTAB;
+  return rc;
+}
+
+/*
+** Handle a 'special' INSERT of the form:
+**
+**   "INSERT INTO tbl(tbl) VALUES(<expr>)"
+**
+** Argument pVal contains the result of <expr>. Currently the only 
+** meaningful value to insert is the text 'optimize'.
+*/
+static int fts3SpecialInsert(Fts3Table *p, sqlite3_value *pVal){
+  int rc = SQLITE_ERROR;           /* Return Code */
+  const char *zVal = (const char *)sqlite3_value_text(pVal);
+  int nVal = sqlite3_value_bytes(pVal);
+
+  if( !zVal ){
+    return SQLITE_NOMEM;
+  }else if( nVal==8 && 0==sqlite3_strnicmp(zVal, "optimize", 8) ){
+    rc = fts3DoOptimize(p, 0);
+  }else if( nVal==7 && 0==sqlite3_strnicmp(zVal, "rebuild", 7) ){
+    rc = fts3DoRebuild(p);
+  }else if( nVal==15 && 0==sqlite3_strnicmp(zVal, "integrity-check", 15) ){
+    rc = fts3DoIntegrityCheck(p);
+  }else if( nVal>6 && 0==sqlite3_strnicmp(zVal, "merge=", 6) ){
+    rc = fts3DoIncrmerge(p, &zVal[6]);
+  }else if( nVal>10 && 0==sqlite3_strnicmp(zVal, "automerge=", 10) ){
+    rc = fts3DoAutoincrmerge(p, &zVal[10]);
+  }else if( nVal==5 && 0==sqlite3_strnicmp(zVal, "flush", 5) ){
+    rc = sqlite3Fts3PendingTermsFlush(p);
+  }
+#if defined(SQLITE_DEBUG) || defined(SQLITE_TEST)
+  else{
+    int v;
+    if( nVal>9 && 0==sqlite3_strnicmp(zVal, "nodesize=", 9) ){
+      v = atoi(&zVal[9]);
+      if( v>=24 && v<=p->nPgsz-35 ) p->nNodeSize = v;
+      rc = SQLITE_OK;
+    }else if( nVal>11 && 0==sqlite3_strnicmp(zVal, "maxpending=", 9) ){
+      v = atoi(&zVal[11]);
+      if( v>=64 && v<=FTS3_MAX_PENDING_DATA ) p->nMaxPendingData = v;
+      rc = SQLITE_OK;
+    }else if( nVal>21 && 0==sqlite3_strnicmp(zVal,"test-no-incr-doclist=",21) ){
+      p->bNoIncrDoclist = atoi(&zVal[21]);
+      rc = SQLITE_OK;
+    }else if( nVal>11 && 0==sqlite3_strnicmp(zVal,"mergecount=",11) ){
+      v = atoi(&zVal[11]);
+      if( v>=4 && v<=FTS3_MERGE_COUNT && (v&1)==0 ) p->nMergeCount = v;
+      rc = SQLITE_OK;
+    }
+  }
+#endif
+  return rc;
+}
+
+#ifndef SQLITE_DISABLE_FTS4_DEFERRED
+/*
+** Delete all cached deferred doclists. Deferred doclists are cached
+** (allocated) by the sqlite3Fts3CacheDeferredDoclists() function.
+*/
+void sqlite3Fts3FreeDeferredDoclists(Fts3Cursor *pCsr){
+  Fts3DeferredToken *pDef;
+  for(pDef=pCsr->pDeferred; pDef; pDef=pDef->pNext){
+    fts3PendingListDelete(pDef->pList);
+    pDef->pList = 0;
+  }
+}
+
+/*
+** Free all entries in the pCsr->pDeffered list. Entries are added to 
+** this list using sqlite3Fts3DeferToken().
+*/
+void sqlite3Fts3FreeDeferredTokens(Fts3Cursor *pCsr){
+  Fts3DeferredToken *pDef;
+  Fts3DeferredToken *pNext;
+  for(pDef=pCsr->pDeferred; pDef; pDef=pNext){
+    pNext = pDef->pNext;
+    fts3PendingListDelete(pDef->pList);
+    sqlite3_free(pDef);
+  }
+  pCsr->pDeferred = 0;
+}
+
+/*
+** Generate deferred-doclists for all tokens in the pCsr->pDeferred list
+** based on the row that pCsr currently points to.
+**
+** A deferred-doclist is like any other doclist with position information
+** included, except that it only contains entries for a single row of the
+** table, not for all rows.
+*/
+int sqlite3Fts3CacheDeferredDoclists(Fts3Cursor *pCsr){
+  int rc = SQLITE_OK;             /* Return code */
+  if( pCsr->pDeferred ){
+    int i;                        /* Used to iterate through table columns */
+    sqlite3_int64 iDocid;         /* Docid of the row pCsr points to */
+    Fts3DeferredToken *pDef;      /* Used to iterate through deferred tokens */
+  
+    Fts3Table *p = (Fts3Table *)pCsr->base.pVtab;
+    sqlite3_tokenizer *pT = p->pTokenizer;
+    sqlite3_tokenizer_module const *pModule = pT->pModule;
+   
+    assert( pCsr->isRequireSeek==0 );
+    iDocid = sqlite3_column_int64(pCsr->pStmt, 0);
+  
+    for(i=0; i<p->nColumn && rc==SQLITE_OK; i++){
+      if( p->abNotindexed[i]==0 ){
+        const char *zText = (const char *)sqlite3_column_text(pCsr->pStmt, i+1);
+        sqlite3_tokenizer_cursor *pTC = 0;
+
+        rc = sqlite3Fts3OpenTokenizer(pT, pCsr->iLangid, zText, -1, &pTC);
+        while( rc==SQLITE_OK ){
+          char const *zToken;       /* Buffer containing token */
+          int nToken = 0;           /* Number of bytes in token */
+          int iDum1 = 0, iDum2 = 0; /* Dummy variables */
+          int iPos = 0;             /* Position of token in zText */
+
+          rc = pModule->xNext(pTC, &zToken, &nToken, &iDum1, &iDum2, &iPos);
+          for(pDef=pCsr->pDeferred; pDef && rc==SQLITE_OK; pDef=pDef->pNext){
+            Fts3PhraseToken *pPT = pDef->pToken;
+            if( (pDef->iCol>=p->nColumn || pDef->iCol==i)
+                && (pPT->bFirst==0 || iPos==0)
+                && (pPT->n==nToken || (pPT->isPrefix && pPT->n<nToken))
+                && (0==memcmp(zToken, pPT->z, pPT->n))
+              ){
+              fts3PendingListAppend(&pDef->pList, iDocid, i, iPos, &rc);
+            }
+          }
+        }
+        if( pTC ) pModule->xClose(pTC);
+        if( rc==SQLITE_DONE ) rc = SQLITE_OK;
+      }
+    }
+
+    for(pDef=pCsr->pDeferred; pDef && rc==SQLITE_OK; pDef=pDef->pNext){
+      if( pDef->pList ){
+        rc = fts3PendingListAppendVarint(&pDef->pList, 0);
+      }
+    }
+  }
+
+  return rc;
+}
+
+int sqlite3Fts3DeferredTokenList(
+  Fts3DeferredToken *p, 
+  char **ppData, 
+  int *pnData
+){
+  char *pRet;
+  int nSkip;
+  sqlite3_int64 dummy;
+
+  *ppData = 0;
+  *pnData = 0;
+
+  if( p->pList==0 ){
+    return SQLITE_OK;
+  }
+
+  pRet = (char *)sqlite3_malloc64(p->pList->nData);
+  if( !pRet ) return SQLITE_NOMEM;
+
+  nSkip = sqlite3Fts3GetVarint(p->pList->aData, &dummy);
+  *pnData = p->pList->nData - nSkip;
+  *ppData = pRet;
+  
+  memcpy(pRet, &p->pList->aData[nSkip], *pnData);
+  return SQLITE_OK;
+}
+
+/*
+** Add an entry for token pToken to the pCsr->pDeferred list.
+*/
+int sqlite3Fts3DeferToken(
+  Fts3Cursor *pCsr,               /* Fts3 table cursor */
+  Fts3PhraseToken *pToken,        /* Token to defer */
+  int iCol                        /* Column that token must appear in (or -1) */
+){
+  Fts3DeferredToken *pDeferred;
+  pDeferred = sqlite3_malloc64(sizeof(*pDeferred));
+  if( !pDeferred ){
+    return SQLITE_NOMEM;
+  }
+  memset(pDeferred, 0, sizeof(*pDeferred));
+  pDeferred->pToken = pToken;
+  pDeferred->pNext = pCsr->pDeferred; 
+  pDeferred->iCol = iCol;
+  pCsr->pDeferred = pDeferred;
+
+  assert( pToken->pDeferred==0 );
+  pToken->pDeferred = pDeferred;
+
+  return SQLITE_OK;
+}
+#endif
+
+/*
+** SQLite value pRowid contains the rowid of a row that may or may not be
+** present in the FTS3 table. If it is, delete it and adjust the contents
+** of subsiduary data structures accordingly.
+*/
+static int fts3DeleteByRowid(
+  Fts3Table *p, 
+  sqlite3_value *pRowid, 
+  int *pnChng,                    /* IN/OUT: Decrement if row is deleted */
+  u32 *aSzDel
+){
+  int rc = SQLITE_OK;             /* Return code */
+  int bFound = 0;                 /* True if *pRowid really is in the table */
+
+  fts3DeleteTerms(&rc, p, pRowid, aSzDel, &bFound);
+  if( bFound && rc==SQLITE_OK ){
+    int isEmpty = 0;              /* Deleting *pRowid leaves the table empty */
+    rc = fts3IsEmpty(p, pRowid, &isEmpty);
+    if( rc==SQLITE_OK ){
+      if( isEmpty ){
+        /* Deleting this row means the whole table is empty. In this case
+        ** delete the contents of all three tables and throw away any
+        ** data in the pendingTerms hash table.  */
+        rc = fts3DeleteAll(p, 1);
+        *pnChng = 0;
+        memset(aSzDel, 0, sizeof(u32) * (p->nColumn+1) * 2);
+      }else{
+        *pnChng = *pnChng - 1;
+        if( p->zContentTbl==0 ){
+          fts3SqlExec(&rc, p, SQL_DELETE_CONTENT, &pRowid);
+        }
+        if( p->bHasDocsize ){
+          fts3SqlExec(&rc, p, SQL_DELETE_DOCSIZE, &pRowid);
+        }
+      }
+    }
+  }
+
+  return rc;
+}
+
+/*
+** This function does the work for the xUpdate method of FTS3 virtual
+** tables. The schema of the virtual table being:
+**
+**     CREATE TABLE <table name>( 
+**       <user columns>,
+**       <table name> HIDDEN, 
+**       docid HIDDEN, 
+**       <langid> HIDDEN
+**     );
+**
+** 
+*/
+int sqlite3Fts3UpdateMethod(
+  sqlite3_vtab *pVtab,            /* FTS3 vtab object */
+  int nArg,                       /* Size of argument array */
+  sqlite3_value **apVal,          /* Array of arguments */
+  sqlite_int64 *pRowid            /* OUT: The affected (or effected) rowid */
+){
+  Fts3Table *p = (Fts3Table *)pVtab;
+  int rc = SQLITE_OK;             /* Return Code */
+  u32 *aSzIns = 0;                /* Sizes of inserted documents */
+  u32 *aSzDel = 0;                /* Sizes of deleted documents */
+  int nChng = 0;                  /* Net change in number of documents */
+  int bInsertDone = 0;
+
+  /* At this point it must be known if the %_stat table exists or not.
+  ** So bHasStat may not be 2.  */
+  assert( p->bHasStat==0 || p->bHasStat==1 );
+
+  assert( p->pSegments==0 );
+  assert( 
+      nArg==1                     /* DELETE operations */
+   || nArg==(2 + p->nColumn + 3)  /* INSERT or UPDATE operations */
+  );
+
+  /* Check for a "special" INSERT operation. One of the form:
+  **
+  **   INSERT INTO xyz(xyz) VALUES('command');
+  */
+  if( nArg>1 
+   && sqlite3_value_type(apVal[0])==SQLITE_NULL 
+   && sqlite3_value_type(apVal[p->nColumn+2])!=SQLITE_NULL 
+  ){
+    rc = fts3SpecialInsert(p, apVal[p->nColumn+2]);
+    goto update_out;
+  }
+
+  if( nArg>1 && sqlite3_value_int(apVal[2 + p->nColumn + 2])<0 ){
+    rc = SQLITE_CONSTRAINT;
+    goto update_out;
+  }
+
+  /* Allocate space to hold the change in document sizes */
+  aSzDel = sqlite3_malloc64(sizeof(aSzDel[0])*((sqlite3_int64)p->nColumn+1)*2);
+  if( aSzDel==0 ){
+    rc = SQLITE_NOMEM;
+    goto update_out;
+  }
+  aSzIns = &aSzDel[p->nColumn+1];
+  memset(aSzDel, 0, sizeof(aSzDel[0])*(p->nColumn+1)*2);
+
+  rc = fts3Writelock(p);
+  if( rc!=SQLITE_OK ) goto update_out;
+
+  /* If this is an INSERT operation, or an UPDATE that modifies the rowid
+  ** value, then this operation requires constraint handling.
+  **
+  ** If the on-conflict mode is REPLACE, this means that the existing row
+  ** should be deleted from the database before inserting the new row. Or,
+  ** if the on-conflict mode is other than REPLACE, then this method must
+  ** detect the conflict and return SQLITE_CONSTRAINT before beginning to
+  ** modify the database file.
+  */
+  if( nArg>1 && p->zContentTbl==0 ){
+    /* Find the value object that holds the new rowid value. */
+    sqlite3_value *pNewRowid = apVal[3+p->nColumn];
+    if( sqlite3_value_type(pNewRowid)==SQLITE_NULL ){
+      pNewRowid = apVal[1];
+    }
+
+    if( sqlite3_value_type(pNewRowid)!=SQLITE_NULL && ( 
+        sqlite3_value_type(apVal[0])==SQLITE_NULL
+     || sqlite3_value_int64(apVal[0])!=sqlite3_value_int64(pNewRowid)
+    )){
+      /* The new rowid is not NULL (in this case the rowid will be
+      ** automatically assigned and there is no chance of a conflict), and 
+      ** the statement is either an INSERT or an UPDATE that modifies the
+      ** rowid column. So if the conflict mode is REPLACE, then delete any
+      ** existing row with rowid=pNewRowid. 
+      **
+      ** Or, if the conflict mode is not REPLACE, insert the new record into 
+      ** the %_content table. If we hit the duplicate rowid constraint (or any
+      ** other error) while doing so, return immediately.
+      **
+      ** This branch may also run if pNewRowid contains a value that cannot
+      ** be losslessly converted to an integer. In this case, the eventual 
+      ** call to fts3InsertData() (either just below or further on in this
+      ** function) will return SQLITE_MISMATCH. If fts3DeleteByRowid is 
+      ** invoked, it will delete zero rows (since no row will have
+      ** docid=$pNewRowid if $pNewRowid is not an integer value).
+      */
+      if( sqlite3_vtab_on_conflict(p->db)==SQLITE_REPLACE ){
+        rc = fts3DeleteByRowid(p, pNewRowid, &nChng, aSzDel);
+      }else{
+        rc = fts3InsertData(p, apVal, pRowid);
+        bInsertDone = 1;
+      }
+    }
+  }
+  if( rc!=SQLITE_OK ){
+    goto update_out;
+  }
+
+  /* If this is a DELETE or UPDATE operation, remove the old record. */
+  if( sqlite3_value_type(apVal[0])!=SQLITE_NULL ){
+    assert( sqlite3_value_type(apVal[0])==SQLITE_INTEGER );
+    rc = fts3DeleteByRowid(p, apVal[0], &nChng, aSzDel);
+  }
+  
+  /* If this is an INSERT or UPDATE operation, insert the new record. */
+  if( nArg>1 && rc==SQLITE_OK ){
+    int iLangid = sqlite3_value_int(apVal[2 + p->nColumn + 2]);
+    if( bInsertDone==0 ){
+      rc = fts3InsertData(p, apVal, pRowid);
+      if( rc==SQLITE_CONSTRAINT && p->zContentTbl==0 ){
+        rc = FTS_CORRUPT_VTAB;
+      }
+    }
+    if( rc==SQLITE_OK ){
+      rc = fts3PendingTermsDocid(p, 0, iLangid, *pRowid);
+    }
+    if( rc==SQLITE_OK ){
+      assert( p->iPrevDocid==*pRowid );
+      rc = fts3InsertTerms(p, iLangid, apVal, aSzIns);
+    }
+    if( p->bHasDocsize ){
+      fts3InsertDocsize(&rc, p, aSzIns);
+    }
+    nChng++;
+  }
+
+  if( p->bFts4 ){
+    fts3UpdateDocTotals(&rc, p, aSzIns, aSzDel, nChng);
+  }
+
+ update_out:
+  sqlite3_free(aSzDel);
+  sqlite3Fts3SegmentsClose(p);
+  return rc;
+}
+
+/* 
+** Flush any data in the pending-terms hash table to disk. If successful,
+** merge all segments in the database (including the new segment, if 
+** there was any data to flush) into a single segment. 
+*/
+int sqlite3Fts3Optimize(Fts3Table *p){
+  int rc;
+  rc = sqlite3_exec(p->db, "SAVEPOINT fts3", 0, 0, 0);
+  if( rc==SQLITE_OK ){
+    rc = fts3DoOptimize(p, 1);
+    if( rc==SQLITE_OK || rc==SQLITE_DONE ){
+      int rc2 = sqlite3_exec(p->db, "RELEASE fts3", 0, 0, 0);
+      if( rc2!=SQLITE_OK ) rc = rc2;
+    }else{
+      sqlite3_exec(p->db, "ROLLBACK TO fts3", 0, 0, 0);
+      sqlite3_exec(p->db, "RELEASE fts3", 0, 0, 0);
+    }
+  }
+  sqlite3Fts3SegmentsClose(p);
+  return rc;
+}
+
+#endif
diff --git a/ext/fts3/fts3speed.tcl b/ext/fts3/fts3speed.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..377cb196065699557b0a035a1e9d74808321187a
--- /dev/null
+++ b/ext/fts3/fts3speed.tcl
@@ -0,0 +1,122 @@
+
+
+#--------------------------------------------------------------------------
+# This script contains several sub-programs used to test FTS3/FTS4 
+# performance. It does not run the queries directly, but generates SQL
+# scripts that can be run using the shell tool.
+#
+# The following cases are tested:
+#
+#   1. Inserting documents into an FTS3 table.
+#   2. Optimizing an FTS3 table (i.e. "INSERT INTO t1 VALUES('optimize')").
+#   3. Deleting documents from an FTS3 table.
+#   4. Querying FTS3 tables.
+#
+
+# Number of tokens in vocabulary. And number of tokens in each document.
+#
+set VOCAB_SIZE  2000
+set DOC_SIZE     100
+
+set NUM_INSERTS 100000
+set NUM_SELECTS 1000
+
+# Force everything in this script to be deterministic.
+#
+expr {srand(0)}
+
+proc usage {} {
+  puts stderr "Usage: $::argv0 <rows> <selects>"
+  exit -1
+}
+
+proc sql {sql} {
+  puts $::fd $sql
+}
+
+
+# Return a list of $nWord randomly generated tokens each between 2 and 10
+# characters in length.
+#
+proc build_vocab {nWord} {
+  set ret [list]
+  set chars [list a b c d e f g h i j k l m n o p q r s t u v w x y z]
+  for {set i 0} {$i<$nWord} {incr i} {
+    set len [expr {int((rand()*9.0)+2)}]
+    set term ""
+    for {set j 0} {$j<$len} {incr j} {
+      append term [lindex $chars [expr {int(rand()*[llength $chars])}]]
+    }
+    lappend ret $term
+  }
+  set ret
+}
+
+proc select_term {} {
+  set n [llength $::vocab]
+  set t [expr int(rand()*$n*3)]
+  if {$t>=2*$n} { set t [expr {($t-2*$n)/100}] }
+  if {$t>=$n} { set t [expr {($t-$n)/10}] }
+  lindex $::vocab $t
+}
+
+proc select_doc {nTerm} {
+  set ret [list]
+  for {set i 0} {$i<$nTerm} {incr i} {
+    lappend ret [select_term]
+  }
+  set ret
+}
+
+proc test_1 {nInsert} {
+  sql "PRAGMA synchronous = OFF;"
+  sql "DROP TABLE IF EXISTS t1;"
+  sql "CREATE VIRTUAL TABLE t1 USING fts4;"
+  for {set i 0} {$i < $nInsert} {incr i} {
+    set doc [select_doc $::DOC_SIZE]
+    sql "INSERT INTO t1 VALUES('$doc');"
+  }
+}
+
+proc test_2 {} {
+  sql "INSERT INTO t1(t1) VALUES('optimize');"
+}
+
+proc test_3 {nSelect} {
+  for {set i 0} {$i < $nSelect} {incr i} {
+    sql "SELECT count(*) FROM t1 WHERE t1 MATCH '[select_term]';"
+  }
+}
+
+proc test_4 {nSelect} {
+  for {set i 0} {$i < $nSelect} {incr i} {
+    sql "SELECT count(*) FROM t1 WHERE t1 MATCH '[select_term] [select_term]';"
+  }
+}
+
+if {[llength $argv]!=0} usage
+
+set ::vocab [build_vocab $::VOCAB_SIZE]
+
+set ::fd [open fts3speed_insert.sql w]
+test_1 $NUM_INSERTS
+close $::fd
+
+set ::fd [open fts3speed_select.sql w]
+test_3 $NUM_SELECTS
+close $::fd
+
+set ::fd [open fts3speed_select2.sql w]
+test_4 $NUM_SELECTS
+close $::fd
+
+set ::fd [open fts3speed_optimize.sql w]
+test_2
+close $::fd
+
+puts "Success. Created files:"
+puts "  fts3speed_insert.sql"
+puts "  fts3speed_select.sql"
+puts "  fts3speed_select2.sql"
+puts "  fts3speed_optimize.sql"
+
diff --git a/ext/fts3/tool/fts3cov.sh b/ext/fts3/tool/fts3cov.sh
new file mode 100644
index 0000000000000000000000000000000000000000..b1f34dce76bb46c8ac59044856861083a0be4050
--- /dev/null
+++ b/ext/fts3/tool/fts3cov.sh
@@ -0,0 +1,16 @@
+#!/bin/sh
+
+set -e
+
+srcdir=`dirname $(dirname $(dirname $(dirname $0)))`
+./testfixture $srcdir/test/fts3.test --output=fts3cov-out.txt
+
+echo ""
+
+for f in `ls $srcdir/ext/fts3/*.c` 
+do
+  f=`basename $f`
+  echo -ne "$f: "
+  gcov -b $f | grep Taken | sed 's/Taken at least once://'
+done
+
diff --git a/ext/fts3/tool/fts3view.c b/ext/fts3/tool/fts3view.c
new file mode 100644
index 0000000000000000000000000000000000000000..9558cde0d06af937217c0b4811f92a480603b6f3
--- /dev/null
+++ b/ext/fts3/tool/fts3view.c
@@ -0,0 +1,875 @@
+/*
+** This program is a debugging and analysis utility that displays
+** information about an FTS3 or FTS4 index.
+**
+** Link this program against the SQLite3 amalgamation with the
+** SQLITE_ENABLE_FTS4 compile-time option.  Then run it as:
+**
+**    fts3view DATABASE
+**
+** to get a list of all FTS3/4 tables in DATABASE, or do
+**
+**    fts3view DATABASE TABLE COMMAND ....
+**
+** to see various aspects of the TABLE table.  Type fts3view with no
+** arguments for a list of available COMMANDs.
+*/
+#include <stdio.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include "sqlite3.h"
+
+/*
+** Extra command-line arguments:
+*/
+int nExtra;
+char **azExtra;
+
+/*
+** Look for a command-line argument.
+*/
+const char *findOption(const char *zName, int hasArg, const char *zDefault){
+  int i;
+  const char *zResult = zDefault;
+  for(i=0; i<nExtra; i++){
+    const char *z = azExtra[i];
+    while( z[0]=='-' ) z++;
+    if( strcmp(z, zName)==0 ){
+      int j = 1;
+      if( hasArg==0 || i==nExtra-1 ) j = 0;
+      zResult = azExtra[i+j];
+      while( i+j<nExtra ){
+        azExtra[i] = azExtra[i+j+1];
+        i++;
+      }
+      break;
+    }
+  }
+  return zResult;       
+}
+
+
+/*
+** Prepare an SQL query
+*/
+static sqlite3_stmt *prepare(sqlite3 *db, const char *zFormat, ...){
+  va_list ap;
+  char *zSql;
+  sqlite3_stmt *pStmt;
+  int rc;
+
+  va_start(ap, zFormat);
+  zSql = sqlite3_vmprintf(zFormat, ap);
+  va_end(ap);
+  rc = sqlite3_prepare_v2(db, zSql, -1, &pStmt, 0);
+  if( rc ){
+    fprintf(stderr, "Error: %s\nSQL: %s\n", sqlite3_errmsg(db), zSql);
+    exit(1);
+  }
+  sqlite3_free(zSql);
+  return pStmt;
+}
+
+/*
+** Run an SQL statement
+*/
+static int runSql(sqlite3 *db, const char *zFormat, ...){
+  va_list ap;
+  char *zSql;
+  int rc;
+
+  va_start(ap, zFormat);
+  zSql = sqlite3_vmprintf(zFormat, ap);
+  rc = sqlite3_exec(db, zSql, 0, 0, 0);
+  va_end(ap);
+  return rc;
+}
+
+/*
+** Show the table schema
+*/
+static void showSchema(sqlite3 *db, const char *zTab){
+  sqlite3_stmt *pStmt;
+  pStmt = prepare(db,
+            "SELECT sql FROM sqlite_schema"
+            " WHERE name LIKE '%q%%'"
+            " ORDER BY 1",
+            zTab);
+  while( sqlite3_step(pStmt)==SQLITE_ROW ){
+    printf("%s;\n", sqlite3_column_text(pStmt, 0));
+  }
+  sqlite3_finalize(pStmt);
+  pStmt = prepare(db, "PRAGMA page_size");
+  while( sqlite3_step(pStmt)==SQLITE_ROW ){
+    printf("PRAGMA page_size=%s;\n", sqlite3_column_text(pStmt, 0));
+  }
+  sqlite3_finalize(pStmt);
+  pStmt = prepare(db, "PRAGMA journal_mode");
+  while( sqlite3_step(pStmt)==SQLITE_ROW ){
+    printf("PRAGMA journal_mode=%s;\n", sqlite3_column_text(pStmt, 0));
+  }
+  sqlite3_finalize(pStmt);
+  pStmt = prepare(db, "PRAGMA auto_vacuum");
+  while( sqlite3_step(pStmt)==SQLITE_ROW ){
+    const char *zType = "???";
+    switch( sqlite3_column_int(pStmt, 0) ){
+      case 0:  zType = "OFF";         break;
+      case 1:  zType = "FULL";        break;
+      case 2:  zType = "INCREMENTAL"; break;
+    }
+    printf("PRAGMA auto_vacuum=%s;\n", zType);
+  }
+  sqlite3_finalize(pStmt);
+  pStmt = prepare(db, "PRAGMA encoding");
+  while( sqlite3_step(pStmt)==SQLITE_ROW ){
+    printf("PRAGMA encoding=%s;\n", sqlite3_column_text(pStmt, 0));
+  }
+  sqlite3_finalize(pStmt);
+}
+
+/* 
+** Read a 64-bit variable-length integer from memory starting at p[0].
+** Return the number of bytes read, or 0 on error.
+** The value is stored in *v.
+*/
+int getVarint(const unsigned char *p, sqlite_int64 *v){
+  const unsigned char *q = p;
+  sqlite_uint64 x = 0, y = 1;
+  while( (*q&0x80)==0x80 && q-(unsigned char *)p<9 ){
+    x += y * (*q++ & 0x7f);
+    y <<= 7;
+  }
+  x += y * (*q++);
+  *v = (sqlite_int64) x;
+  return (int) (q - (unsigned char *)p);
+}
+
+
+/* Show the content of the %_stat table
+*/
+static void showStat(sqlite3 *db, const char *zTab){
+  sqlite3_stmt *pStmt;
+  pStmt = prepare(db, "SELECT id, value FROM '%q_stat'", zTab);
+  while( sqlite3_step(pStmt)==SQLITE_ROW ){
+    printf("stat[%d] =", sqlite3_column_int(pStmt, 0));
+    switch( sqlite3_column_type(pStmt, 1) ){
+      case SQLITE_INTEGER: {
+        printf(" %d\n", sqlite3_column_int(pStmt, 1));
+        break;
+      }
+      case SQLITE_BLOB: {
+        unsigned char *x = (unsigned char*)sqlite3_column_blob(pStmt, 1);
+        int len = sqlite3_column_bytes(pStmt, 1);
+        int i = 0;
+        sqlite3_int64 v;
+        while( i<len ){
+          i += getVarint(x, &v);
+          printf(" %lld", v);
+        }
+        printf("\n");
+        break;
+      }
+    }
+  }
+  sqlite3_finalize(pStmt);
+}
+
+/*
+** Report on the vocabulary.  This creates an fts4aux table with a random
+** name, but deletes it in the end.
+*/
+static void showVocabulary(sqlite3 *db, const char *zTab){
+  char *zAux;
+  sqlite3_uint64 r;
+  sqlite3_stmt *pStmt;
+  int nDoc = 0;
+  int nToken = 0;
+  int nOccurrence = 0;
+  int nTop;
+  int n, i;
+
+  sqlite3_randomness(sizeof(r), &r);
+  zAux = sqlite3_mprintf("viewer_%llx", zTab, r);
+  runSql(db, "BEGIN");
+  pStmt = prepare(db, "SELECT count(*) FROM %Q", zTab);
+  while( sqlite3_step(pStmt)==SQLITE_ROW ){
+    nDoc = sqlite3_column_int(pStmt, 0);
+  }
+  sqlite3_finalize(pStmt);
+  printf("Number of documents...................... %9d\n", nDoc);
+
+  runSql(db, "CREATE VIRTUAL TABLE %s USING fts4aux(%Q)", zAux, zTab);
+  pStmt = prepare(db, 
+             "SELECT count(*), sum(occurrences) FROM %s WHERE col='*'",
+             zAux);
+  while( sqlite3_step(pStmt)==SQLITE_ROW ){
+    nToken = sqlite3_column_int(pStmt, 0);
+    nOccurrence = sqlite3_column_int(pStmt, 1);
+  }
+  sqlite3_finalize(pStmt);
+  printf("Total tokens in all documents............ %9d\n", nOccurrence);
+  printf("Total number of distinct tokens.......... %9d\n", nToken);
+  if( nToken==0 ) goto end_vocab;
+
+  n = 0;
+  pStmt = prepare(db, "SELECT count(*) FROM %s"
+                      " WHERE col='*' AND occurrences==1", zAux);
+  while( sqlite3_step(pStmt)==SQLITE_ROW ){
+    n = sqlite3_column_int(pStmt, 0);
+  }
+  sqlite3_finalize(pStmt);
+  printf("Tokens used exactly once................. %9d %5.2f%%\n",
+          n, n*100.0/nToken);
+
+  n = 0;
+  pStmt = prepare(db, "SELECT count(*) FROM %s"
+                      " WHERE col='*' AND documents==1", zAux);
+  while( sqlite3_step(pStmt)==SQLITE_ROW ){
+    n = sqlite3_column_int(pStmt, 0);
+  }
+  sqlite3_finalize(pStmt);
+  printf("Tokens used in only one document......... %9d %5.2f%%\n",
+          n, n*100.0/nToken);
+
+  if( nDoc>=2000 ){
+    n = 0;
+    pStmt = prepare(db, "SELECT count(*) FROM %s"
+                        " WHERE col='*' AND occurrences<=%d", zAux, nDoc/1000);
+    while( sqlite3_step(pStmt)==SQLITE_ROW ){
+      n = sqlite3_column_int(pStmt, 0);
+    }
+    sqlite3_finalize(pStmt);
+    printf("Tokens used in 0.1%% or less of docs...... %9d %5.2f%%\n",
+            n, n*100.0/nToken);
+  }
+
+  if( nDoc>=200 ){
+    n = 0;
+    pStmt = prepare(db, "SELECT count(*) FROM %s"
+                        " WHERE col='*' AND occurrences<=%d", zAux, nDoc/100);
+    while( sqlite3_step(pStmt)==SQLITE_ROW ){
+      n = sqlite3_column_int(pStmt, 0);
+    }
+    sqlite3_finalize(pStmt);
+    printf("Tokens used in 1%% or less of docs........ %9d %5.2f%%\n",
+            n, n*100.0/nToken);
+  }
+
+  nTop = atoi(findOption("top", 1, "25"));
+  printf("The %d most common tokens:\n", nTop);
+  pStmt = prepare(db,
+            "SELECT term, documents FROM %s"
+            " WHERE col='*'"
+            " ORDER BY documents DESC, term"
+            " LIMIT %d", zAux, nTop);
+  i = 0;
+  while( sqlite3_step(pStmt)==SQLITE_ROW ){
+    i++;
+    n = sqlite3_column_int(pStmt, 1);
+    printf("  %2d. %-30s %9d docs %5.2f%%\n", i,
+      sqlite3_column_text(pStmt, 0), n, n*100.0/nDoc);
+  }
+  sqlite3_finalize(pStmt);
+
+end_vocab:
+  runSql(db, "ROLLBACK");
+  sqlite3_free(zAux);
+}
+
+/*
+** Report on the number and sizes of segments
+*/
+static void showSegmentStats(sqlite3 *db, const char *zTab){
+  sqlite3_stmt *pStmt;
+  int nSeg = 0;
+  sqlite3_int64 szSeg = 0, mxSeg = 0;
+  int nIdx = 0;
+  sqlite3_int64 szIdx = 0, mxIdx = 0;
+  int nRoot = 0;
+  sqlite3_int64 szRoot = 0, mxRoot = 0;
+  sqlite3_int64 mx;
+  int nLeaf;
+  int n;
+  int pgsz;
+  int mxLevel;
+  int i;
+
+  pStmt = prepare(db,
+                  "SELECT count(*), sum(length(block)), max(length(block))"
+                  " FROM '%q_segments'",
+                  zTab);
+  while( sqlite3_step(pStmt)==SQLITE_ROW ){
+    nSeg = sqlite3_column_int(pStmt, 0);
+    szSeg = sqlite3_column_int64(pStmt, 1);
+    mxSeg = sqlite3_column_int64(pStmt, 2);
+  }
+  sqlite3_finalize(pStmt);
+  pStmt = prepare(db,
+            "SELECT count(*), sum(length(block)), max(length(block))"
+            "  FROM '%q_segments' a JOIN '%q_segdir' b"
+            " WHERE a.blockid BETWEEN b.leaves_end_block+1 AND b.end_block",
+            zTab, zTab);
+  while( sqlite3_step(pStmt)==SQLITE_ROW ){
+    nIdx = sqlite3_column_int(pStmt, 0);
+    szIdx = sqlite3_column_int64(pStmt, 1);
+    mxIdx = sqlite3_column_int64(pStmt, 2);
+  }
+  sqlite3_finalize(pStmt);
+  pStmt = prepare(db,
+            "SELECT count(*), sum(length(root)), max(length(root))"
+            "  FROM '%q_segdir'",
+            zTab);
+  while( sqlite3_step(pStmt)==SQLITE_ROW ){
+    nRoot = sqlite3_column_int(pStmt, 0);
+    szRoot = sqlite3_column_int64(pStmt, 1);
+    mxRoot = sqlite3_column_int64(pStmt, 2);
+  }
+  sqlite3_finalize(pStmt);
+
+  printf("Number of segments....................... %9d\n", nSeg+nRoot);
+  printf("Number of leaf segments.................. %9d\n", nSeg-nIdx);
+  printf("Number of index segments................. %9d\n", nIdx);
+  printf("Number of root segments.................. %9d\n", nRoot);
+  printf("Total size of all segments............... %9lld\n", szSeg+szRoot);
+  printf("Total size of all leaf segments.......... %9lld\n", szSeg-szIdx);
+  printf("Total size of all index segments......... %9lld\n", szIdx);
+  printf("Total size of all root segments.......... %9lld\n", szRoot);
+  if( nSeg>0 ){
+    printf("Average size of all segments............. %11.1f\n",
+            (double)(szSeg+szRoot)/(double)(nSeg+nRoot));
+    printf("Average size of leaf segments............ %11.1f\n",
+            (double)(szSeg-szIdx)/(double)(nSeg-nIdx));
+  }
+  if( nIdx>0 ){
+    printf("Average size of index segments........... %11.1f\n",
+            (double)szIdx/(double)nIdx);
+  }
+  if( nRoot>0 ){
+    printf("Average size of root segments............ %11.1f\n",
+            (double)szRoot/(double)nRoot);
+  }
+  mx = mxSeg;
+  if( mx<mxRoot ) mx = mxRoot;
+  printf("Maximum segment size..................... %9lld\n", mx);
+  printf("Maximum index segment size............... %9lld\n", mxIdx);
+  printf("Maximum root segment size................ %9lld\n", mxRoot);
+
+  pStmt = prepare(db, "PRAGMA page_size");
+  pgsz = 1024;
+  while( sqlite3_step(pStmt)==SQLITE_ROW ){
+    pgsz = sqlite3_column_int(pStmt, 0);
+  }
+  sqlite3_finalize(pStmt);
+  printf("Database page size....................... %9d\n", pgsz);
+  pStmt = prepare(db,
+            "SELECT count(*)"
+            "  FROM '%q_segments' a JOIN '%q_segdir' b"
+            " WHERE a.blockid BETWEEN b.start_block AND b.leaves_end_block"
+            "   AND length(a.block)>%d",
+            zTab, zTab, pgsz-45);
+  n = 0;
+  while( sqlite3_step(pStmt)==SQLITE_ROW ){
+    n = sqlite3_column_int(pStmt, 0);
+  }
+  sqlite3_finalize(pStmt);
+  nLeaf = nSeg - nIdx;
+  printf("Leaf segments larger than %5d bytes.... %9d   %5.2f%%\n",
+         pgsz-45, n, nLeaf>0 ? n*100.0/nLeaf : 0.0);
+
+  pStmt = prepare(db, "SELECT max(level%%1024) FROM '%q_segdir'", zTab);
+  mxLevel = 0;
+  while( sqlite3_step(pStmt)==SQLITE_ROW ){
+    mxLevel = sqlite3_column_int(pStmt, 0);
+  }
+  sqlite3_finalize(pStmt);
+
+  for(i=0; i<=mxLevel; i++){
+    pStmt = prepare(db,
+           "SELECT count(*), sum(len), avg(len), max(len), sum(len>%d),"
+           "       count(distinct idx)"
+           "  FROM (SELECT length(a.block) AS len, idx"
+           "          FROM '%q_segments' a JOIN '%q_segdir' b"
+           "         WHERE (a.blockid BETWEEN b.start_block"
+                                       " AND b.leaves_end_block)"
+           "           AND (b.level%%1024)==%d)",
+           pgsz-45, zTab, zTab, i);
+    if( sqlite3_step(pStmt)==SQLITE_ROW
+     && (nLeaf = sqlite3_column_int(pStmt, 0))>0
+    ){
+      sqlite3_int64 sz;
+      nIdx = sqlite3_column_int(pStmt, 5);
+      printf("For level %d:\n", i);
+      printf("  Number of indexes...................... %9d\n", nIdx);
+      printf("  Number of leaf segments................ %9d\n", nLeaf);
+      if( nIdx>1 ){
+        printf("  Average leaf segments per index........ %11.1f\n",
+               (double)nLeaf/(double)nIdx);
+      }
+      printf("  Total size of all leaf segments........ %9lld\n",
+             (sz = sqlite3_column_int64(pStmt, 1)));
+      printf("  Average size of leaf segments.......... %11.1f\n",
+             sqlite3_column_double(pStmt, 2));
+      if( nIdx>1 ){
+        printf("  Average leaf segment size per index.... %11.1f\n",
+               (double)sz/(double)nIdx);
+      }
+      printf("  Maximum leaf segment size.............. %9lld\n",
+             sqlite3_column_int64(pStmt, 3));
+      n = sqlite3_column_int(pStmt, 4);
+      printf("  Leaf segments larger than %5d bytes.. %9d   %5.2f%%\n",
+             pgsz-45, n, n*100.0/nLeaf);
+    }
+    sqlite3_finalize(pStmt);
+  }
+}
+
+/*
+** Print a single "tree" line of the segdir map output.
+*/
+static void printTreeLine(sqlite3_int64 iLower, sqlite3_int64 iUpper){
+  printf("                 tree   %9lld", iLower);
+  if( iUpper>iLower ){
+    printf(" thru %9lld  (%lld blocks)", iUpper, iUpper-iLower+1);
+  }
+  printf("\n");
+}
+
+/*
+** Check to see if the block of a %_segments entry is NULL.
+*/
+static int isNullSegment(sqlite3 *db, const char *zTab, sqlite3_int64 iBlockId){
+  sqlite3_stmt *pStmt;
+  int rc = 1;
+
+  pStmt = prepare(db, "SELECT block IS NULL FROM '%q_segments'"
+                      " WHERE blockid=%lld", zTab, iBlockId);
+  if( sqlite3_step(pStmt)==SQLITE_ROW ){
+    rc = sqlite3_column_int(pStmt, 0);
+  }
+  sqlite3_finalize(pStmt);
+  return rc;
+}
+
+/*
+** Show a map of segments derived from the %_segdir table.
+*/
+static void showSegdirMap(sqlite3 *db, const char *zTab){
+  int mxIndex, iIndex;
+  sqlite3_stmt *pStmt = 0;
+  sqlite3_stmt *pStmt2 = 0;
+  int prevLevel;
+
+  pStmt = prepare(db, "SELECT max(level/1024) FROM '%q_segdir'", zTab);
+  if( sqlite3_step(pStmt)==SQLITE_ROW ){
+    mxIndex = sqlite3_column_int(pStmt, 0);
+  }else{
+    mxIndex = 0;
+  }
+  sqlite3_finalize(pStmt);
+
+  printf("Number of inverted indices............... %3d\n", mxIndex+1);
+  pStmt = prepare(db,
+    "SELECT level, idx, start_block, leaves_end_block, end_block, rowid"
+    "  FROM '%q_segdir'"
+    " WHERE level/1024==?"
+    " ORDER BY level DESC, idx",
+    zTab);
+  pStmt2 = prepare(db,
+    "SELECT blockid FROM '%q_segments'"
+    " WHERE blockid BETWEEN ? AND ? ORDER BY blockid",
+    zTab);
+  for(iIndex=0; iIndex<=mxIndex; iIndex++){
+    if( mxIndex>0 ){
+      printf("**************************** Index %d "
+             "****************************\n", iIndex);
+    }
+    sqlite3_bind_int(pStmt, 1, iIndex);
+    prevLevel = -1;
+    while( sqlite3_step(pStmt)==SQLITE_ROW ){
+      int iLevel = sqlite3_column_int(pStmt, 0)%1024;
+      int iIdx = sqlite3_column_int(pStmt, 1);
+      sqlite3_int64 iStart = sqlite3_column_int64(pStmt, 2);
+      sqlite3_int64 iLEnd = sqlite3_column_int64(pStmt, 3);
+      sqlite3_int64 iEnd = sqlite3_column_int64(pStmt, 4);
+      char rtag[20];
+      if( iLevel!=prevLevel ){
+        printf("level %2d idx %2d", iLevel, iIdx);
+        prevLevel = iLevel;
+      }else{
+        printf("         idx %2d", iIdx);
+      }
+      sqlite3_snprintf(sizeof(rtag), rtag, "r%lld",
+                       sqlite3_column_int64(pStmt,5));
+      printf("  root   %9s\n", rtag);
+      if( iLEnd>iStart ){
+        sqlite3_int64 iLower, iPrev = 0, iX;
+        if( iLEnd+1<=iEnd ){
+          sqlite3_bind_int64(pStmt2, 1, iLEnd+1);
+          sqlite3_bind_int64(pStmt2, 2, iEnd);
+          iLower = -1;        
+          while( sqlite3_step(pStmt2)==SQLITE_ROW ){
+            iX = sqlite3_column_int64(pStmt2, 0);
+            if( iLower<0 ){
+              iLower = iPrev = iX;
+            }else if( iX==iPrev+1 ){
+              iPrev = iX;
+            }else{
+              printTreeLine(iLower, iPrev);
+              iLower = iPrev = iX;
+            }
+          }
+          sqlite3_reset(pStmt2);
+          if( iLower>=0 ){
+            if( iLower==iPrev && iLower==iEnd
+             && isNullSegment(db,zTab,iLower)
+            ){
+              printf("                 null   %9lld\n", iLower);
+            }else{
+              printTreeLine(iLower, iPrev);
+            }
+          }
+        }
+        printf("                 leaves %9lld thru %9lld  (%lld blocks)\n",
+               iStart, iLEnd, iLEnd - iStart + 1);
+      }
+    }
+    sqlite3_reset(pStmt);
+  }
+  sqlite3_finalize(pStmt);
+  sqlite3_finalize(pStmt2);
+}
+
+/*
+** Decode a single segment block and display the results on stdout.
+*/
+static void decodeSegment(
+  const unsigned char *aData,   /* Content to print */
+  int nData                     /* Number of bytes of content */
+){
+  sqlite3_int64 iChild = 0;
+  sqlite3_int64 iPrefix;
+  sqlite3_int64 nTerm;
+  sqlite3_int64 n;
+  sqlite3_int64 iDocsz;
+  int iHeight;
+  sqlite3_int64 i = 0;
+  int cnt = 0;
+  char zTerm[1000];
+
+  i += getVarint(aData, &n);
+  iHeight = (int)n;
+  printf("height: %d\n", iHeight);
+  if( iHeight>0 ){
+    i += getVarint(aData+i, &iChild);
+    printf("left-child: %lld\n", iChild);
+  }
+  while( i<nData ){
+    if( (cnt++)>0 ){
+      i += getVarint(aData+i, &iPrefix);
+    }else{
+      iPrefix = 0;
+    }
+    i += getVarint(aData+i, &nTerm);
+    if( iPrefix+nTerm+1 >= sizeof(zTerm) ){
+      fprintf(stderr, "term to long\n");
+      exit(1);
+    }
+    memcpy(zTerm+iPrefix, aData+i, (size_t)nTerm);
+    zTerm[iPrefix+nTerm] = 0;
+    i += nTerm;
+    if( iHeight==0 ){
+      i += getVarint(aData+i, &iDocsz);
+      printf("term: %-25s doclist %7lld bytes offset %lld\n", zTerm, iDocsz, i);
+      i += iDocsz;
+    }else{
+      printf("term: %-25s child %lld\n", zTerm, ++iChild);
+    }
+  }
+}
+  
+  
+/*
+** Print a a blob as hex and ascii.
+*/
+static void printBlob(
+  const unsigned char *aData,   /* Content to print */
+  int nData                     /* Number of bytes of content */
+){
+  int i, j;
+  const char *zOfstFmt;
+  const int perLine = 16;
+
+  if( (nData&~0xfff)==0 ){
+    zOfstFmt = " %03x: ";
+  }else if( (nData&~0xffff)==0 ){
+    zOfstFmt = " %04x: ";
+  }else if( (nData&~0xfffff)==0 ){
+    zOfstFmt = " %05x: ";
+  }else if( (nData&~0xffffff)==0 ){
+    zOfstFmt = " %06x: ";
+  }else{
+    zOfstFmt = " %08x: ";
+  }
+
+  for(i=0; i<nData; i += perLine){
+    fprintf(stdout, zOfstFmt, i);
+    for(j=0; j<perLine; j++){
+      if( i+j>nData ){
+        fprintf(stdout, "   ");
+      }else{
+        fprintf(stdout,"%02x ", aData[i+j]);
+      }
+    }
+    for(j=0; j<perLine; j++){
+      if( i+j>nData ){
+        fprintf(stdout, " ");
+      }else{
+        fprintf(stdout,"%c", isprint(aData[i+j]) ? aData[i+j] : '.');
+      }
+    }
+    fprintf(stdout,"\n");
+  }
+}
+
+/*
+** Convert text to a 64-bit integer
+*/
+static sqlite3_int64 atoi64(const char *z){
+  sqlite3_int64 v = 0;
+  while( z[0]>='0' && z[0]<='9' ){
+     v = v*10 + z[0] - '0';
+     z++;
+  }
+  return v;
+}
+
+/*
+** Return a prepared statement which, when stepped, will return in its
+** first column the blob associated with segment zId.  If zId begins with
+** 'r' then it is a rowid of a %_segdir entry.  Otherwise it is a
+** %_segment entry.
+*/
+static sqlite3_stmt *prepareToGetSegment(
+  sqlite3 *db,         /* The database */
+  const char *zTab,    /* The FTS3/4 table name */
+  const char *zId      /* ID of the segment to open */
+){
+  sqlite3_stmt *pStmt;
+  if( zId[0]=='r' ){
+    pStmt = prepare(db, "SELECT root FROM '%q_segdir' WHERE rowid=%lld",
+                    zTab, atoi64(zId+1));
+  }else{
+    pStmt = prepare(db, "SELECT block FROM '%q_segments' WHERE blockid=%lld",
+                    zTab, atoi64(zId));
+  }
+  return pStmt;
+}
+
+/*
+** Print the content of a segment or of the root of a segdir.  The segment
+** or root is identified by azExtra[0].  If the first character of azExtra[0]
+** is 'r' then the remainder is the integer rowid of the %_segdir entry.
+** If the first character of azExtra[0] is not 'r' then, then all of
+** azExtra[0] is an integer which is the block number.
+**
+** If the --raw option is present in azExtra, then a hex dump is provided.
+** Otherwise a decoding is shown.
+*/
+static void showSegment(sqlite3 *db, const char *zTab){
+  const unsigned char *aData;
+  int nData;
+  sqlite3_stmt *pStmt;
+
+  pStmt = prepareToGetSegment(db, zTab, azExtra[0]);
+  if( sqlite3_step(pStmt)!=SQLITE_ROW ){
+    sqlite3_finalize(pStmt);
+    return;
+  }
+  nData = sqlite3_column_bytes(pStmt, 0);
+  aData = sqlite3_column_blob(pStmt, 0);
+  printf("Segment %s of size %d bytes:\n", azExtra[0], nData);
+  if( findOption("raw", 0, 0)!=0 ){
+    printBlob(aData, nData);
+  }else{
+    decodeSegment(aData, nData);
+  }
+  sqlite3_finalize(pStmt);
+}
+
+/*
+** Decode a single doclist and display the results on stdout.
+*/
+static void decodeDoclist(
+  const unsigned char *aData,   /* Content to print */
+  int nData                     /* Number of bytes of content */
+){
+  sqlite3_int64 iPrevDocid = 0;
+  sqlite3_int64 iDocid;
+  sqlite3_int64 iPos;
+  sqlite3_int64 iPrevPos = 0;
+  sqlite3_int64 iCol;
+  int i = 0;
+
+  while( i<nData ){
+    i += getVarint(aData+i, &iDocid);
+    printf("docid %lld col0", iDocid+iPrevDocid);
+    iPrevDocid += iDocid;
+    iPrevPos = 0;
+    while( 1 ){
+      i += getVarint(aData+i, &iPos);
+      if( iPos==1 ){
+        i += getVarint(aData+i, &iCol);
+        printf(" col%lld", iCol);
+        iPrevPos = 0;
+      }else if( iPos==0 ){
+        printf("\n");
+        break;
+      }else{
+        iPrevPos += iPos - 2;
+        printf(" %lld", iPrevPos);
+      }
+    }
+  }
+}
+  
+
+/*
+** Print the content of a doclist.  The segment or segdir-root is
+** identified by azExtra[0].  If the first character of azExtra[0]
+** is 'r' then the remainder is the integer rowid of the %_segdir entry.
+** If the first character of azExtra[0] is not 'r' then, then all of
+** azExtra[0] is an integer which is the block number.  The offset
+** into the segment is identified by azExtra[1].  The size of the doclist
+** is azExtra[2].
+**
+** If the --raw option is present in azExtra, then a hex dump is provided.
+** Otherwise a decoding is shown.
+*/
+static void showDoclist(sqlite3 *db, const char *zTab){
+  const unsigned char *aData;
+  sqlite3_int64 offset;
+  int nData;
+  sqlite3_stmt *pStmt;
+
+  offset = atoi64(azExtra[1]);
+  nData = atoi(azExtra[2]);
+  pStmt = prepareToGetSegment(db, zTab, azExtra[0]);
+  if( sqlite3_step(pStmt)!=SQLITE_ROW ){
+    sqlite3_finalize(pStmt);
+    return;
+  }
+  aData = sqlite3_column_blob(pStmt, 0);
+  printf("Doclist at %s offset %lld of size %d bytes:\n",
+         azExtra[0], offset, nData);
+  if( findOption("raw", 0, 0)!=0 ){
+    printBlob(aData+offset, nData);
+  }else{
+    decodeDoclist(aData+offset, nData);
+  }
+  sqlite3_finalize(pStmt);
+}
+
+/*
+** Show the top N largest segments
+*/
+static void listBigSegments(sqlite3 *db, const char *zTab){
+  int nTop, i;
+  sqlite3_stmt *pStmt;
+  sqlite3_int64 sz;
+  sqlite3_int64 id;
+
+  nTop = atoi(findOption("top", 1, "25"));
+  printf("The %d largest segments:\n", nTop);
+  pStmt = prepare(db,
+            "SELECT blockid, length(block) AS len FROM '%q_segments'"
+            " ORDER BY 2 DESC, 1"
+            " LIMIT %d", zTab, nTop);
+  i = 0;
+  while( sqlite3_step(pStmt)==SQLITE_ROW ){
+    i++;
+    id = sqlite3_column_int64(pStmt, 0);
+    sz = sqlite3_column_int64(pStmt, 1);
+    printf("  %2d. %9lld size %lld\n", i, id, sz);
+  }
+  sqlite3_finalize(pStmt);
+}
+
+
+
+static void usage(const char *argv0){
+  fprintf(stderr, "Usage: %s DATABASE\n"
+                  "   or: %s DATABASE FTS3TABLE ARGS...\n", argv0, argv0);
+  fprintf(stderr,
+    "ARGS:\n"
+    "  big-segments [--top N]                    show the largest segments\n"
+    "  doclist BLOCKID OFFSET SIZE [--raw]       Decode a doclist\n"
+    "  schema                                    FTS table schema\n"
+    "  segdir                                    directory of segments\n"
+    "  segment BLOCKID [--raw]                   content of a segment\n"
+    "  segment-stats                             info on segment sizes\n"
+    "  stat                                      the %%_stat table\n"
+    "  vocabulary [--top N]                      document vocabulary\n"
+  );
+  exit(1);
+}
+
+int main(int argc, char **argv){
+  sqlite3 *db;
+  int rc;
+  const char *zTab;
+  const char *zCmd;
+
+  if( argc<2 ) usage(argv[0]);
+  rc = sqlite3_open(argv[1], &db);
+  if( rc ){
+    fprintf(stderr, "Cannot open %s\n", argv[1]);
+    exit(1);
+  }
+  if( argc==2 ){
+    sqlite3_stmt *pStmt;
+    int cnt = 0;
+    pStmt = prepare(db, "SELECT b.sql"
+                        "  FROM sqlite_schema a, sqlite_schema b"
+                        " WHERE a.name GLOB '*_segdir'"
+                        "   AND b.name=substr(a.name,1,length(a.name)-7)"
+                        " ORDER BY 1");
+    while( sqlite3_step(pStmt)==SQLITE_ROW ){
+      cnt++;
+      printf("%s;\n", sqlite3_column_text(pStmt, 0));
+    }
+    sqlite3_finalize(pStmt);
+    if( cnt==0 ){
+      printf("/* No FTS3/4 tables found in database %s */\n", argv[1]);
+    }
+    return 0;
+  }
+  if( argc<4 ) usage(argv[0]);
+  zTab = argv[2];
+  zCmd = argv[3];
+  nExtra = argc-4;
+  azExtra = argv+4;
+  if( strcmp(zCmd,"big-segments")==0 ){
+    listBigSegments(db, zTab);
+  }else if( strcmp(zCmd,"doclist")==0 ){
+    if( argc<7 ) usage(argv[0]);
+    showDoclist(db, zTab);
+  }else if( strcmp(zCmd,"schema")==0 ){
+    showSchema(db, zTab);
+  }else if( strcmp(zCmd,"segdir")==0 ){
+    showSegdirMap(db, zTab);
+  }else if( strcmp(zCmd,"segment")==0 ){
+    if( argc<5 ) usage(argv[0]);
+    showSegment(db, zTab);
+  }else if( strcmp(zCmd,"segment-stats")==0 ){
+    showSegmentStats(db, zTab);
+  }else if( strcmp(zCmd,"stat")==0 ){
+    showStat(db, zTab);
+  }else if( strcmp(zCmd,"vocabulary")==0 ){
+    showVocabulary(db, zTab);
+  }else{
+    usage(argv[0]);
+  }
+  return 0; 
+}
diff --git a/ext/fts3/unicode/CaseFolding.txt b/ext/fts3/unicode/CaseFolding.txt
new file mode 100644
index 0000000000000000000000000000000000000000..0d9a4090cde47a44f99be9368109e693e8e95b39
--- /dev/null
+++ b/ext/fts3/unicode/CaseFolding.txt
@@ -0,0 +1,1224 @@
+# CaseFolding-6.1.0.txt
+# Date: 2011-07-25, 21:21:56 GMT [MD]
+#
+# Unicode Character Database
+# Copyright (c) 1991-2011 Unicode, Inc.
+# For terms of use, see http://www.unicode.org/terms_of_use.html
+# For documentation, see http://www.unicode.org/reports/tr44/
+#
+# Case Folding Properties
+#
+# This file is a supplement to the UnicodeData file.
+# It provides a case folding mapping generated from the Unicode Character Database.
+# If all characters are mapped according to the full mapping below, then
+# case differences (according to UnicodeData.txt and SpecialCasing.txt)
+# are eliminated.
+#
+# The data supports both implementations that require simple case foldings
+# (where string lengths don't change), and implementations that allow full case folding
+# (where string lengths may grow). Note that where they can be supported, the
+# full case foldings are superior: for example, they allow "MASSE" and "Maße" to match.
+#
+# All code points not listed in this file map to themselves.
+#
+# NOTE: case folding does not preserve normalization formats!
+#
+# For information on case folding, including how to have case folding 
+# preserve normalization formats, see Section 3.13 Default Case Algorithms in
+# The Unicode Standard, Version 5.0.
+#
+# ================================================================================
+# Format
+# ================================================================================
+# The entries in this file are in the following machine-readable format:
+#
+# <code>; <status>; <mapping>; # <name>
+#
+# The status field is:
+# C: common case folding, common mappings shared by both simple and full mappings.
+# F: full case folding, mappings that cause strings to grow in length. Multiple characters are separated by spaces.
+# S: simple case folding, mappings to single characters where different from F.
+# T: special case for uppercase I and dotted uppercase I
+#    - For non-Turkic languages, this mapping is normally not used.
+#    - For Turkic languages (tr, az), this mapping can be used instead of the normal mapping for these characters.
+#      Note that the Turkic mappings do not maintain canonical equivalence without additional processing.
+#      See the discussions of case mapping in the Unicode Standard for more information.
+#
+# Usage:
+#  A. To do a simple case folding, use the mappings with status C + S.
+#  B. To do a full case folding, use the mappings with status C + F.
+#
+#    The mappings with status T can be used or omitted depending on the desired case-folding
+#    behavior. (The default option is to exclude them.)
+#
+# =================================================================
+
+# Property: Case_Folding
+
+#  All code points not explicitly listed for Case_Folding
+#  have the value C for the status field, and the code point itself for the mapping field.
+
+# @missing: 0000..10FFFF; C; <code point>
+
+# =================================================================
+0041; C; 0061; # LATIN CAPITAL LETTER A
+0042; C; 0062; # LATIN CAPITAL LETTER B
+0043; C; 0063; # LATIN CAPITAL LETTER C
+0044; C; 0064; # LATIN CAPITAL LETTER D
+0045; C; 0065; # LATIN CAPITAL LETTER E
+0046; C; 0066; # LATIN CAPITAL LETTER F
+0047; C; 0067; # LATIN CAPITAL LETTER G
+0048; C; 0068; # LATIN CAPITAL LETTER H
+0049; C; 0069; # LATIN CAPITAL LETTER I
+0049; T; 0131; # LATIN CAPITAL LETTER I
+004A; C; 006A; # LATIN CAPITAL LETTER J
+004B; C; 006B; # LATIN CAPITAL LETTER K
+004C; C; 006C; # LATIN CAPITAL LETTER L
+004D; C; 006D; # LATIN CAPITAL LETTER M
+004E; C; 006E; # LATIN CAPITAL LETTER N
+004F; C; 006F; # LATIN CAPITAL LETTER O
+0050; C; 0070; # LATIN CAPITAL LETTER P
+0051; C; 0071; # LATIN CAPITAL LETTER Q
+0052; C; 0072; # LATIN CAPITAL LETTER R
+0053; C; 0073; # LATIN CAPITAL LETTER S
+0054; C; 0074; # LATIN CAPITAL LETTER T
+0055; C; 0075; # LATIN CAPITAL LETTER U
+0056; C; 0076; # LATIN CAPITAL LETTER V
+0057; C; 0077; # LATIN CAPITAL LETTER W
+0058; C; 0078; # LATIN CAPITAL LETTER X
+0059; C; 0079; # LATIN CAPITAL LETTER Y
+005A; C; 007A; # LATIN CAPITAL LETTER Z
+00B5; C; 03BC; # MICRO SIGN
+00C0; C; 00E0; # LATIN CAPITAL LETTER A WITH GRAVE
+00C1; C; 00E1; # LATIN CAPITAL LETTER A WITH ACUTE
+00C2; C; 00E2; # LATIN CAPITAL LETTER A WITH CIRCUMFLEX
+00C3; C; 00E3; # LATIN CAPITAL LETTER A WITH TILDE
+00C4; C; 00E4; # LATIN CAPITAL LETTER A WITH DIAERESIS
+00C5; C; 00E5; # LATIN CAPITAL LETTER A WITH RING ABOVE
+00C6; C; 00E6; # LATIN CAPITAL LETTER AE
+00C7; C; 00E7; # LATIN CAPITAL LETTER C WITH CEDILLA
+00C8; C; 00E8; # LATIN CAPITAL LETTER E WITH GRAVE
+00C9; C; 00E9; # LATIN CAPITAL LETTER E WITH ACUTE
+00CA; C; 00EA; # LATIN CAPITAL LETTER E WITH CIRCUMFLEX
+00CB; C; 00EB; # LATIN CAPITAL LETTER E WITH DIAERESIS
+00CC; C; 00EC; # LATIN CAPITAL LETTER I WITH GRAVE
+00CD; C; 00ED; # LATIN CAPITAL LETTER I WITH ACUTE
+00CE; C; 00EE; # LATIN CAPITAL LETTER I WITH CIRCUMFLEX
+00CF; C; 00EF; # LATIN CAPITAL LETTER I WITH DIAERESIS
+00D0; C; 00F0; # LATIN CAPITAL LETTER ETH
+00D1; C; 00F1; # LATIN CAPITAL LETTER N WITH TILDE
+00D2; C; 00F2; # LATIN CAPITAL LETTER O WITH GRAVE
+00D3; C; 00F3; # LATIN CAPITAL LETTER O WITH ACUTE
+00D4; C; 00F4; # LATIN CAPITAL LETTER O WITH CIRCUMFLEX
+00D5; C; 00F5; # LATIN CAPITAL LETTER O WITH TILDE
+00D6; C; 00F6; # LATIN CAPITAL LETTER O WITH DIAERESIS
+00D8; C; 00F8; # LATIN CAPITAL LETTER O WITH STROKE
+00D9; C; 00F9; # LATIN CAPITAL LETTER U WITH GRAVE
+00DA; C; 00FA; # LATIN CAPITAL LETTER U WITH ACUTE
+00DB; C; 00FB; # LATIN CAPITAL LETTER U WITH CIRCUMFLEX
+00DC; C; 00FC; # LATIN CAPITAL LETTER U WITH DIAERESIS
+00DD; C; 00FD; # LATIN CAPITAL LETTER Y WITH ACUTE
+00DE; C; 00FE; # LATIN CAPITAL LETTER THORN
+00DF; F; 0073 0073; # LATIN SMALL LETTER SHARP S
+0100; C; 0101; # LATIN CAPITAL LETTER A WITH MACRON
+0102; C; 0103; # LATIN CAPITAL LETTER A WITH BREVE
+0104; C; 0105; # LATIN CAPITAL LETTER A WITH OGONEK
+0106; C; 0107; # LATIN CAPITAL LETTER C WITH ACUTE
+0108; C; 0109; # LATIN CAPITAL LETTER C WITH CIRCUMFLEX
+010A; C; 010B; # LATIN CAPITAL LETTER C WITH DOT ABOVE
+010C; C; 010D; # LATIN CAPITAL LETTER C WITH CARON
+010E; C; 010F; # LATIN CAPITAL LETTER D WITH CARON
+0110; C; 0111; # LATIN CAPITAL LETTER D WITH STROKE
+0112; C; 0113; # LATIN CAPITAL LETTER E WITH MACRON
+0114; C; 0115; # LATIN CAPITAL LETTER E WITH BREVE
+0116; C; 0117; # LATIN CAPITAL LETTER E WITH DOT ABOVE
+0118; C; 0119; # LATIN CAPITAL LETTER E WITH OGONEK
+011A; C; 011B; # LATIN CAPITAL LETTER E WITH CARON
+011C; C; 011D; # LATIN CAPITAL LETTER G WITH CIRCUMFLEX
+011E; C; 011F; # LATIN CAPITAL LETTER G WITH BREVE
+0120; C; 0121; # LATIN CAPITAL LETTER G WITH DOT ABOVE
+0122; C; 0123; # LATIN CAPITAL LETTER G WITH CEDILLA
+0124; C; 0125; # LATIN CAPITAL LETTER H WITH CIRCUMFLEX
+0126; C; 0127; # LATIN CAPITAL LETTER H WITH STROKE
+0128; C; 0129; # LATIN CAPITAL LETTER I WITH TILDE
+012A; C; 012B; # LATIN CAPITAL LETTER I WITH MACRON
+012C; C; 012D; # LATIN CAPITAL LETTER I WITH BREVE
+012E; C; 012F; # LATIN CAPITAL LETTER I WITH OGONEK
+0130; F; 0069 0307; # LATIN CAPITAL LETTER I WITH DOT ABOVE
+0130; T; 0069; # LATIN CAPITAL LETTER I WITH DOT ABOVE
+0132; C; 0133; # LATIN CAPITAL LIGATURE IJ
+0134; C; 0135; # LATIN CAPITAL LETTER J WITH CIRCUMFLEX
+0136; C; 0137; # LATIN CAPITAL LETTER K WITH CEDILLA
+0139; C; 013A; # LATIN CAPITAL LETTER L WITH ACUTE
+013B; C; 013C; # LATIN CAPITAL LETTER L WITH CEDILLA
+013D; C; 013E; # LATIN CAPITAL LETTER L WITH CARON
+013F; C; 0140; # LATIN CAPITAL LETTER L WITH MIDDLE DOT
+0141; C; 0142; # LATIN CAPITAL LETTER L WITH STROKE
+0143; C; 0144; # LATIN CAPITAL LETTER N WITH ACUTE
+0145; C; 0146; # LATIN CAPITAL LETTER N WITH CEDILLA
+0147; C; 0148; # LATIN CAPITAL LETTER N WITH CARON
+0149; F; 02BC 006E; # LATIN SMALL LETTER N PRECEDED BY APOSTROPHE
+014A; C; 014B; # LATIN CAPITAL LETTER ENG
+014C; C; 014D; # LATIN CAPITAL LETTER O WITH MACRON
+014E; C; 014F; # LATIN CAPITAL LETTER O WITH BREVE
+0150; C; 0151; # LATIN CAPITAL LETTER O WITH DOUBLE ACUTE
+0152; C; 0153; # LATIN CAPITAL LIGATURE OE
+0154; C; 0155; # LATIN CAPITAL LETTER R WITH ACUTE
+0156; C; 0157; # LATIN CAPITAL LETTER R WITH CEDILLA
+0158; C; 0159; # LATIN CAPITAL LETTER R WITH CARON
+015A; C; 015B; # LATIN CAPITAL LETTER S WITH ACUTE
+015C; C; 015D; # LATIN CAPITAL LETTER S WITH CIRCUMFLEX
+015E; C; 015F; # LATIN CAPITAL LETTER S WITH CEDILLA
+0160; C; 0161; # LATIN CAPITAL LETTER S WITH CARON
+0162; C; 0163; # LATIN CAPITAL LETTER T WITH CEDILLA
+0164; C; 0165; # LATIN CAPITAL LETTER T WITH CARON
+0166; C; 0167; # LATIN CAPITAL LETTER T WITH STROKE
+0168; C; 0169; # LATIN CAPITAL LETTER U WITH TILDE
+016A; C; 016B; # LATIN CAPITAL LETTER U WITH MACRON
+016C; C; 016D; # LATIN CAPITAL LETTER U WITH BREVE
+016E; C; 016F; # LATIN CAPITAL LETTER U WITH RING ABOVE
+0170; C; 0171; # LATIN CAPITAL LETTER U WITH DOUBLE ACUTE
+0172; C; 0173; # LATIN CAPITAL LETTER U WITH OGONEK
+0174; C; 0175; # LATIN CAPITAL LETTER W WITH CIRCUMFLEX
+0176; C; 0177; # LATIN CAPITAL LETTER Y WITH CIRCUMFLEX
+0178; C; 00FF; # LATIN CAPITAL LETTER Y WITH DIAERESIS
+0179; C; 017A; # LATIN CAPITAL LETTER Z WITH ACUTE
+017B; C; 017C; # LATIN CAPITAL LETTER Z WITH DOT ABOVE
+017D; C; 017E; # LATIN CAPITAL LETTER Z WITH CARON
+017F; C; 0073; # LATIN SMALL LETTER LONG S
+0181; C; 0253; # LATIN CAPITAL LETTER B WITH HOOK
+0182; C; 0183; # LATIN CAPITAL LETTER B WITH TOPBAR
+0184; C; 0185; # LATIN CAPITAL LETTER TONE SIX
+0186; C; 0254; # LATIN CAPITAL LETTER OPEN O
+0187; C; 0188; # LATIN CAPITAL LETTER C WITH HOOK
+0189; C; 0256; # LATIN CAPITAL LETTER AFRICAN D
+018A; C; 0257; # LATIN CAPITAL LETTER D WITH HOOK
+018B; C; 018C; # LATIN CAPITAL LETTER D WITH TOPBAR
+018E; C; 01DD; # LATIN CAPITAL LETTER REVERSED E
+018F; C; 0259; # LATIN CAPITAL LETTER SCHWA
+0190; C; 025B; # LATIN CAPITAL LETTER OPEN E
+0191; C; 0192; # LATIN CAPITAL LETTER F WITH HOOK
+0193; C; 0260; # LATIN CAPITAL LETTER G WITH HOOK
+0194; C; 0263; # LATIN CAPITAL LETTER GAMMA
+0196; C; 0269; # LATIN CAPITAL LETTER IOTA
+0197; C; 0268; # LATIN CAPITAL LETTER I WITH STROKE
+0198; C; 0199; # LATIN CAPITAL LETTER K WITH HOOK
+019C; C; 026F; # LATIN CAPITAL LETTER TURNED M
+019D; C; 0272; # LATIN CAPITAL LETTER N WITH LEFT HOOK
+019F; C; 0275; # LATIN CAPITAL LETTER O WITH MIDDLE TILDE
+01A0; C; 01A1; # LATIN CAPITAL LETTER O WITH HORN
+01A2; C; 01A3; # LATIN CAPITAL LETTER OI
+01A4; C; 01A5; # LATIN CAPITAL LETTER P WITH HOOK
+01A6; C; 0280; # LATIN LETTER YR
+01A7; C; 01A8; # LATIN CAPITAL LETTER TONE TWO
+01A9; C; 0283; # LATIN CAPITAL LETTER ESH
+01AC; C; 01AD; # LATIN CAPITAL LETTER T WITH HOOK
+01AE; C; 0288; # LATIN CAPITAL LETTER T WITH RETROFLEX HOOK
+01AF; C; 01B0; # LATIN CAPITAL LETTER U WITH HORN
+01B1; C; 028A; # LATIN CAPITAL LETTER UPSILON
+01B2; C; 028B; # LATIN CAPITAL LETTER V WITH HOOK
+01B3; C; 01B4; # LATIN CAPITAL LETTER Y WITH HOOK
+01B5; C; 01B6; # LATIN CAPITAL LETTER Z WITH STROKE
+01B7; C; 0292; # LATIN CAPITAL LETTER EZH
+01B8; C; 01B9; # LATIN CAPITAL LETTER EZH REVERSED
+01BC; C; 01BD; # LATIN CAPITAL LETTER TONE FIVE
+01C4; C; 01C6; # LATIN CAPITAL LETTER DZ WITH CARON
+01C5; C; 01C6; # LATIN CAPITAL LETTER D WITH SMALL LETTER Z WITH CARON
+01C7; C; 01C9; # LATIN CAPITAL LETTER LJ
+01C8; C; 01C9; # LATIN CAPITAL LETTER L WITH SMALL LETTER J
+01CA; C; 01CC; # LATIN CAPITAL LETTER NJ
+01CB; C; 01CC; # LATIN CAPITAL LETTER N WITH SMALL LETTER J
+01CD; C; 01CE; # LATIN CAPITAL LETTER A WITH CARON
+01CF; C; 01D0; # LATIN CAPITAL LETTER I WITH CARON
+01D1; C; 01D2; # LATIN CAPITAL LETTER O WITH CARON
+01D3; C; 01D4; # LATIN CAPITAL LETTER U WITH CARON
+01D5; C; 01D6; # LATIN CAPITAL LETTER U WITH DIAERESIS AND MACRON
+01D7; C; 01D8; # LATIN CAPITAL LETTER U WITH DIAERESIS AND ACUTE
+01D9; C; 01DA; # LATIN CAPITAL LETTER U WITH DIAERESIS AND CARON
+01DB; C; 01DC; # LATIN CAPITAL LETTER U WITH DIAERESIS AND GRAVE
+01DE; C; 01DF; # LATIN CAPITAL LETTER A WITH DIAERESIS AND MACRON
+01E0; C; 01E1; # LATIN CAPITAL LETTER A WITH DOT ABOVE AND MACRON
+01E2; C; 01E3; # LATIN CAPITAL LETTER AE WITH MACRON
+01E4; C; 01E5; # LATIN CAPITAL LETTER G WITH STROKE
+01E6; C; 01E7; # LATIN CAPITAL LETTER G WITH CARON
+01E8; C; 01E9; # LATIN CAPITAL LETTER K WITH CARON
+01EA; C; 01EB; # LATIN CAPITAL LETTER O WITH OGONEK
+01EC; C; 01ED; # LATIN CAPITAL LETTER O WITH OGONEK AND MACRON
+01EE; C; 01EF; # LATIN CAPITAL LETTER EZH WITH CARON
+01F0; F; 006A 030C; # LATIN SMALL LETTER J WITH CARON
+01F1; C; 01F3; # LATIN CAPITAL LETTER DZ
+01F2; C; 01F3; # LATIN CAPITAL LETTER D WITH SMALL LETTER Z
+01F4; C; 01F5; # LATIN CAPITAL LETTER G WITH ACUTE
+01F6; C; 0195; # LATIN CAPITAL LETTER HWAIR
+01F7; C; 01BF; # LATIN CAPITAL LETTER WYNN
+01F8; C; 01F9; # LATIN CAPITAL LETTER N WITH GRAVE
+01FA; C; 01FB; # LATIN CAPITAL LETTER A WITH RING ABOVE AND ACUTE
+01FC; C; 01FD; # LATIN CAPITAL LETTER AE WITH ACUTE
+01FE; C; 01FF; # LATIN CAPITAL LETTER O WITH STROKE AND ACUTE
+0200; C; 0201; # LATIN CAPITAL LETTER A WITH DOUBLE GRAVE
+0202; C; 0203; # LATIN CAPITAL LETTER A WITH INVERTED BREVE
+0204; C; 0205; # LATIN CAPITAL LETTER E WITH DOUBLE GRAVE
+0206; C; 0207; # LATIN CAPITAL LETTER E WITH INVERTED BREVE
+0208; C; 0209; # LATIN CAPITAL LETTER I WITH DOUBLE GRAVE
+020A; C; 020B; # LATIN CAPITAL LETTER I WITH INVERTED BREVE
+020C; C; 020D; # LATIN CAPITAL LETTER O WITH DOUBLE GRAVE
+020E; C; 020F; # LATIN CAPITAL LETTER O WITH INVERTED BREVE
+0210; C; 0211; # LATIN CAPITAL LETTER R WITH DOUBLE GRAVE
+0212; C; 0213; # LATIN CAPITAL LETTER R WITH INVERTED BREVE
+0214; C; 0215; # LATIN CAPITAL LETTER U WITH DOUBLE GRAVE
+0216; C; 0217; # LATIN CAPITAL LETTER U WITH INVERTED BREVE
+0218; C; 0219; # LATIN CAPITAL LETTER S WITH COMMA BELOW
+021A; C; 021B; # LATIN CAPITAL LETTER T WITH COMMA BELOW
+021C; C; 021D; # LATIN CAPITAL LETTER YOGH
+021E; C; 021F; # LATIN CAPITAL LETTER H WITH CARON
+0220; C; 019E; # LATIN CAPITAL LETTER N WITH LONG RIGHT LEG
+0222; C; 0223; # LATIN CAPITAL LETTER OU
+0224; C; 0225; # LATIN CAPITAL LETTER Z WITH HOOK
+0226; C; 0227; # LATIN CAPITAL LETTER A WITH DOT ABOVE
+0228; C; 0229; # LATIN CAPITAL LETTER E WITH CEDILLA
+022A; C; 022B; # LATIN CAPITAL LETTER O WITH DIAERESIS AND MACRON
+022C; C; 022D; # LATIN CAPITAL LETTER O WITH TILDE AND MACRON
+022E; C; 022F; # LATIN CAPITAL LETTER O WITH DOT ABOVE
+0230; C; 0231; # LATIN CAPITAL LETTER O WITH DOT ABOVE AND MACRON
+0232; C; 0233; # LATIN CAPITAL LETTER Y WITH MACRON
+023A; C; 2C65; # LATIN CAPITAL LETTER A WITH STROKE
+023B; C; 023C; # LATIN CAPITAL LETTER C WITH STROKE
+023D; C; 019A; # LATIN CAPITAL LETTER L WITH BAR
+023E; C; 2C66; # LATIN CAPITAL LETTER T WITH DIAGONAL STROKE
+0241; C; 0242; # LATIN CAPITAL LETTER GLOTTAL STOP
+0243; C; 0180; # LATIN CAPITAL LETTER B WITH STROKE
+0244; C; 0289; # LATIN CAPITAL LETTER U BAR
+0245; C; 028C; # LATIN CAPITAL LETTER TURNED V
+0246; C; 0247; # LATIN CAPITAL LETTER E WITH STROKE
+0248; C; 0249; # LATIN CAPITAL LETTER J WITH STROKE
+024A; C; 024B; # LATIN CAPITAL LETTER SMALL Q WITH HOOK TAIL
+024C; C; 024D; # LATIN CAPITAL LETTER R WITH STROKE
+024E; C; 024F; # LATIN CAPITAL LETTER Y WITH STROKE
+0345; C; 03B9; # COMBINING GREEK YPOGEGRAMMENI
+0370; C; 0371; # GREEK CAPITAL LETTER HETA
+0372; C; 0373; # GREEK CAPITAL LETTER ARCHAIC SAMPI
+0376; C; 0377; # GREEK CAPITAL LETTER PAMPHYLIAN DIGAMMA
+0386; C; 03AC; # GREEK CAPITAL LETTER ALPHA WITH TONOS
+0388; C; 03AD; # GREEK CAPITAL LETTER EPSILON WITH TONOS
+0389; C; 03AE; # GREEK CAPITAL LETTER ETA WITH TONOS
+038A; C; 03AF; # GREEK CAPITAL LETTER IOTA WITH TONOS
+038C; C; 03CC; # GREEK CAPITAL LETTER OMICRON WITH TONOS
+038E; C; 03CD; # GREEK CAPITAL LETTER UPSILON WITH TONOS
+038F; C; 03CE; # GREEK CAPITAL LETTER OMEGA WITH TONOS
+0390; F; 03B9 0308 0301; # GREEK SMALL LETTER IOTA WITH DIALYTIKA AND TONOS
+0391; C; 03B1; # GREEK CAPITAL LETTER ALPHA
+0392; C; 03B2; # GREEK CAPITAL LETTER BETA
+0393; C; 03B3; # GREEK CAPITAL LETTER GAMMA
+0394; C; 03B4; # GREEK CAPITAL LETTER DELTA
+0395; C; 03B5; # GREEK CAPITAL LETTER EPSILON
+0396; C; 03B6; # GREEK CAPITAL LETTER ZETA
+0397; C; 03B7; # GREEK CAPITAL LETTER ETA
+0398; C; 03B8; # GREEK CAPITAL LETTER THETA
+0399; C; 03B9; # GREEK CAPITAL LETTER IOTA
+039A; C; 03BA; # GREEK CAPITAL LETTER KAPPA
+039B; C; 03BB; # GREEK CAPITAL LETTER LAMDA
+039C; C; 03BC; # GREEK CAPITAL LETTER MU
+039D; C; 03BD; # GREEK CAPITAL LETTER NU
+039E; C; 03BE; # GREEK CAPITAL LETTER XI
+039F; C; 03BF; # GREEK CAPITAL LETTER OMICRON
+03A0; C; 03C0; # GREEK CAPITAL LETTER PI
+03A1; C; 03C1; # GREEK CAPITAL LETTER RHO
+03A3; C; 03C3; # GREEK CAPITAL LETTER SIGMA
+03A4; C; 03C4; # GREEK CAPITAL LETTER TAU
+03A5; C; 03C5; # GREEK CAPITAL LETTER UPSILON
+03A6; C; 03C6; # GREEK CAPITAL LETTER PHI
+03A7; C; 03C7; # GREEK CAPITAL LETTER CHI
+03A8; C; 03C8; # GREEK CAPITAL LETTER PSI
+03A9; C; 03C9; # GREEK CAPITAL LETTER OMEGA
+03AA; C; 03CA; # GREEK CAPITAL LETTER IOTA WITH DIALYTIKA
+03AB; C; 03CB; # GREEK CAPITAL LETTER UPSILON WITH DIALYTIKA
+03B0; F; 03C5 0308 0301; # GREEK SMALL LETTER UPSILON WITH DIALYTIKA AND TONOS
+03C2; C; 03C3; # GREEK SMALL LETTER FINAL SIGMA
+03CF; C; 03D7; # GREEK CAPITAL KAI SYMBOL
+03D0; C; 03B2; # GREEK BETA SYMBOL
+03D1; C; 03B8; # GREEK THETA SYMBOL
+03D5; C; 03C6; # GREEK PHI SYMBOL
+03D6; C; 03C0; # GREEK PI SYMBOL
+03D8; C; 03D9; # GREEK LETTER ARCHAIC KOPPA
+03DA; C; 03DB; # GREEK LETTER STIGMA
+03DC; C; 03DD; # GREEK LETTER DIGAMMA
+03DE; C; 03DF; # GREEK LETTER KOPPA
+03E0; C; 03E1; # GREEK LETTER SAMPI
+03E2; C; 03E3; # COPTIC CAPITAL LETTER SHEI
+03E4; C; 03E5; # COPTIC CAPITAL LETTER FEI
+03E6; C; 03E7; # COPTIC CAPITAL LETTER KHEI
+03E8; C; 03E9; # COPTIC CAPITAL LETTER HORI
+03EA; C; 03EB; # COPTIC CAPITAL LETTER GANGIA
+03EC; C; 03ED; # COPTIC CAPITAL LETTER SHIMA
+03EE; C; 03EF; # COPTIC CAPITAL LETTER DEI
+03F0; C; 03BA; # GREEK KAPPA SYMBOL
+03F1; C; 03C1; # GREEK RHO SYMBOL
+03F4; C; 03B8; # GREEK CAPITAL THETA SYMBOL
+03F5; C; 03B5; # GREEK LUNATE EPSILON SYMBOL
+03F7; C; 03F8; # GREEK CAPITAL LETTER SHO
+03F9; C; 03F2; # GREEK CAPITAL LUNATE SIGMA SYMBOL
+03FA; C; 03FB; # GREEK CAPITAL LETTER SAN
+03FD; C; 037B; # GREEK CAPITAL REVERSED LUNATE SIGMA SYMBOL
+03FE; C; 037C; # GREEK CAPITAL DOTTED LUNATE SIGMA SYMBOL
+03FF; C; 037D; # GREEK CAPITAL REVERSED DOTTED LUNATE SIGMA SYMBOL
+0400; C; 0450; # CYRILLIC CAPITAL LETTER IE WITH GRAVE
+0401; C; 0451; # CYRILLIC CAPITAL LETTER IO
+0402; C; 0452; # CYRILLIC CAPITAL LETTER DJE
+0403; C; 0453; # CYRILLIC CAPITAL LETTER GJE
+0404; C; 0454; # CYRILLIC CAPITAL LETTER UKRAINIAN IE
+0405; C; 0455; # CYRILLIC CAPITAL LETTER DZE
+0406; C; 0456; # CYRILLIC CAPITAL LETTER BYELORUSSIAN-UKRAINIAN I
+0407; C; 0457; # CYRILLIC CAPITAL LETTER YI
+0408; C; 0458; # CYRILLIC CAPITAL LETTER JE
+0409; C; 0459; # CYRILLIC CAPITAL LETTER LJE
+040A; C; 045A; # CYRILLIC CAPITAL LETTER NJE
+040B; C; 045B; # CYRILLIC CAPITAL LETTER TSHE
+040C; C; 045C; # CYRILLIC CAPITAL LETTER KJE
+040D; C; 045D; # CYRILLIC CAPITAL LETTER I WITH GRAVE
+040E; C; 045E; # CYRILLIC CAPITAL LETTER SHORT U
+040F; C; 045F; # CYRILLIC CAPITAL LETTER DZHE
+0410; C; 0430; # CYRILLIC CAPITAL LETTER A
+0411; C; 0431; # CYRILLIC CAPITAL LETTER BE
+0412; C; 0432; # CYRILLIC CAPITAL LETTER VE
+0413; C; 0433; # CYRILLIC CAPITAL LETTER GHE
+0414; C; 0434; # CYRILLIC CAPITAL LETTER DE
+0415; C; 0435; # CYRILLIC CAPITAL LETTER IE
+0416; C; 0436; # CYRILLIC CAPITAL LETTER ZHE
+0417; C; 0437; # CYRILLIC CAPITAL LETTER ZE
+0418; C; 0438; # CYRILLIC CAPITAL LETTER I
+0419; C; 0439; # CYRILLIC CAPITAL LETTER SHORT I
+041A; C; 043A; # CYRILLIC CAPITAL LETTER KA
+041B; C; 043B; # CYRILLIC CAPITAL LETTER EL
+041C; C; 043C; # CYRILLIC CAPITAL LETTER EM
+041D; C; 043D; # CYRILLIC CAPITAL LETTER EN
+041E; C; 043E; # CYRILLIC CAPITAL LETTER O
+041F; C; 043F; # CYRILLIC CAPITAL LETTER PE
+0420; C; 0440; # CYRILLIC CAPITAL LETTER ER
+0421; C; 0441; # CYRILLIC CAPITAL LETTER ES
+0422; C; 0442; # CYRILLIC CAPITAL LETTER TE
+0423; C; 0443; # CYRILLIC CAPITAL LETTER U
+0424; C; 0444; # CYRILLIC CAPITAL LETTER EF
+0425; C; 0445; # CYRILLIC CAPITAL LETTER HA
+0426; C; 0446; # CYRILLIC CAPITAL LETTER TSE
+0427; C; 0447; # CYRILLIC CAPITAL LETTER CHE
+0428; C; 0448; # CYRILLIC CAPITAL LETTER SHA
+0429; C; 0449; # CYRILLIC CAPITAL LETTER SHCHA
+042A; C; 044A; # CYRILLIC CAPITAL LETTER HARD SIGN
+042B; C; 044B; # CYRILLIC CAPITAL LETTER YERU
+042C; C; 044C; # CYRILLIC CAPITAL LETTER SOFT SIGN
+042D; C; 044D; # CYRILLIC CAPITAL LETTER E
+042E; C; 044E; # CYRILLIC CAPITAL LETTER YU
+042F; C; 044F; # CYRILLIC CAPITAL LETTER YA
+0460; C; 0461; # CYRILLIC CAPITAL LETTER OMEGA
+0462; C; 0463; # CYRILLIC CAPITAL LETTER YAT
+0464; C; 0465; # CYRILLIC CAPITAL LETTER IOTIFIED E
+0466; C; 0467; # CYRILLIC CAPITAL LETTER LITTLE YUS
+0468; C; 0469; # CYRILLIC CAPITAL LETTER IOTIFIED LITTLE YUS
+046A; C; 046B; # CYRILLIC CAPITAL LETTER BIG YUS
+046C; C; 046D; # CYRILLIC CAPITAL LETTER IOTIFIED BIG YUS
+046E; C; 046F; # CYRILLIC CAPITAL LETTER KSI
+0470; C; 0471; # CYRILLIC CAPITAL LETTER PSI
+0472; C; 0473; # CYRILLIC CAPITAL LETTER FITA
+0474; C; 0475; # CYRILLIC CAPITAL LETTER IZHITSA
+0476; C; 0477; # CYRILLIC CAPITAL LETTER IZHITSA WITH DOUBLE GRAVE ACCENT
+0478; C; 0479; # CYRILLIC CAPITAL LETTER UK
+047A; C; 047B; # CYRILLIC CAPITAL LETTER ROUND OMEGA
+047C; C; 047D; # CYRILLIC CAPITAL LETTER OMEGA WITH TITLO
+047E; C; 047F; # CYRILLIC CAPITAL LETTER OT
+0480; C; 0481; # CYRILLIC CAPITAL LETTER KOPPA
+048A; C; 048B; # CYRILLIC CAPITAL LETTER SHORT I WITH TAIL
+048C; C; 048D; # CYRILLIC CAPITAL LETTER SEMISOFT SIGN
+048E; C; 048F; # CYRILLIC CAPITAL LETTER ER WITH TICK
+0490; C; 0491; # CYRILLIC CAPITAL LETTER GHE WITH UPTURN
+0492; C; 0493; # CYRILLIC CAPITAL LETTER GHE WITH STROKE
+0494; C; 0495; # CYRILLIC CAPITAL LETTER GHE WITH MIDDLE HOOK
+0496; C; 0497; # CYRILLIC CAPITAL LETTER ZHE WITH DESCENDER
+0498; C; 0499; # CYRILLIC CAPITAL LETTER ZE WITH DESCENDER
+049A; C; 049B; # CYRILLIC CAPITAL LETTER KA WITH DESCENDER
+049C; C; 049D; # CYRILLIC CAPITAL LETTER KA WITH VERTICAL STROKE
+049E; C; 049F; # CYRILLIC CAPITAL LETTER KA WITH STROKE
+04A0; C; 04A1; # CYRILLIC CAPITAL LETTER BASHKIR KA
+04A2; C; 04A3; # CYRILLIC CAPITAL LETTER EN WITH DESCENDER
+04A4; C; 04A5; # CYRILLIC CAPITAL LIGATURE EN GHE
+04A6; C; 04A7; # CYRILLIC CAPITAL LETTER PE WITH MIDDLE HOOK
+04A8; C; 04A9; # CYRILLIC CAPITAL LETTER ABKHASIAN HA
+04AA; C; 04AB; # CYRILLIC CAPITAL LETTER ES WITH DESCENDER
+04AC; C; 04AD; # CYRILLIC CAPITAL LETTER TE WITH DESCENDER
+04AE; C; 04AF; # CYRILLIC CAPITAL LETTER STRAIGHT U
+04B0; C; 04B1; # CYRILLIC CAPITAL LETTER STRAIGHT U WITH STROKE
+04B2; C; 04B3; # CYRILLIC CAPITAL LETTER HA WITH DESCENDER
+04B4; C; 04B5; # CYRILLIC CAPITAL LIGATURE TE TSE
+04B6; C; 04B7; # CYRILLIC CAPITAL LETTER CHE WITH DESCENDER
+04B8; C; 04B9; # CYRILLIC CAPITAL LETTER CHE WITH VERTICAL STROKE
+04BA; C; 04BB; # CYRILLIC CAPITAL LETTER SHHA
+04BC; C; 04BD; # CYRILLIC CAPITAL LETTER ABKHASIAN CHE
+04BE; C; 04BF; # CYRILLIC CAPITAL LETTER ABKHASIAN CHE WITH DESCENDER
+04C0; C; 04CF; # CYRILLIC LETTER PALOCHKA
+04C1; C; 04C2; # CYRILLIC CAPITAL LETTER ZHE WITH BREVE
+04C3; C; 04C4; # CYRILLIC CAPITAL LETTER KA WITH HOOK
+04C5; C; 04C6; # CYRILLIC CAPITAL LETTER EL WITH TAIL
+04C7; C; 04C8; # CYRILLIC CAPITAL LETTER EN WITH HOOK
+04C9; C; 04CA; # CYRILLIC CAPITAL LETTER EN WITH TAIL
+04CB; C; 04CC; # CYRILLIC CAPITAL LETTER KHAKASSIAN CHE
+04CD; C; 04CE; # CYRILLIC CAPITAL LETTER EM WITH TAIL
+04D0; C; 04D1; # CYRILLIC CAPITAL LETTER A WITH BREVE
+04D2; C; 04D3; # CYRILLIC CAPITAL LETTER A WITH DIAERESIS
+04D4; C; 04D5; # CYRILLIC CAPITAL LIGATURE A IE
+04D6; C; 04D7; # CYRILLIC CAPITAL LETTER IE WITH BREVE
+04D8; C; 04D9; # CYRILLIC CAPITAL LETTER SCHWA
+04DA; C; 04DB; # CYRILLIC CAPITAL LETTER SCHWA WITH DIAERESIS
+04DC; C; 04DD; # CYRILLIC CAPITAL LETTER ZHE WITH DIAERESIS
+04DE; C; 04DF; # CYRILLIC CAPITAL LETTER ZE WITH DIAERESIS
+04E0; C; 04E1; # CYRILLIC CAPITAL LETTER ABKHASIAN DZE
+04E2; C; 04E3; # CYRILLIC CAPITAL LETTER I WITH MACRON
+04E4; C; 04E5; # CYRILLIC CAPITAL LETTER I WITH DIAERESIS
+04E6; C; 04E7; # CYRILLIC CAPITAL LETTER O WITH DIAERESIS
+04E8; C; 04E9; # CYRILLIC CAPITAL LETTER BARRED O
+04EA; C; 04EB; # CYRILLIC CAPITAL LETTER BARRED O WITH DIAERESIS
+04EC; C; 04ED; # CYRILLIC CAPITAL LETTER E WITH DIAERESIS
+04EE; C; 04EF; # CYRILLIC CAPITAL LETTER U WITH MACRON
+04F0; C; 04F1; # CYRILLIC CAPITAL LETTER U WITH DIAERESIS
+04F2; C; 04F3; # CYRILLIC CAPITAL LETTER U WITH DOUBLE ACUTE
+04F4; C; 04F5; # CYRILLIC CAPITAL LETTER CHE WITH DIAERESIS
+04F6; C; 04F7; # CYRILLIC CAPITAL LETTER GHE WITH DESCENDER
+04F8; C; 04F9; # CYRILLIC CAPITAL LETTER YERU WITH DIAERESIS
+04FA; C; 04FB; # CYRILLIC CAPITAL LETTER GHE WITH STROKE AND HOOK
+04FC; C; 04FD; # CYRILLIC CAPITAL LETTER HA WITH HOOK
+04FE; C; 04FF; # CYRILLIC CAPITAL LETTER HA WITH STROKE
+0500; C; 0501; # CYRILLIC CAPITAL LETTER KOMI DE
+0502; C; 0503; # CYRILLIC CAPITAL LETTER KOMI DJE
+0504; C; 0505; # CYRILLIC CAPITAL LETTER KOMI ZJE
+0506; C; 0507; # CYRILLIC CAPITAL LETTER KOMI DZJE
+0508; C; 0509; # CYRILLIC CAPITAL LETTER KOMI LJE
+050A; C; 050B; # CYRILLIC CAPITAL LETTER KOMI NJE
+050C; C; 050D; # CYRILLIC CAPITAL LETTER KOMI SJE
+050E; C; 050F; # CYRILLIC CAPITAL LETTER KOMI TJE
+0510; C; 0511; # CYRILLIC CAPITAL LETTER REVERSED ZE
+0512; C; 0513; # CYRILLIC CAPITAL LETTER EL WITH HOOK
+0514; C; 0515; # CYRILLIC CAPITAL LETTER LHA
+0516; C; 0517; # CYRILLIC CAPITAL LETTER RHA
+0518; C; 0519; # CYRILLIC CAPITAL LETTER YAE
+051A; C; 051B; # CYRILLIC CAPITAL LETTER QA
+051C; C; 051D; # CYRILLIC CAPITAL LETTER WE
+051E; C; 051F; # CYRILLIC CAPITAL LETTER ALEUT KA
+0520; C; 0521; # CYRILLIC CAPITAL LETTER EL WITH MIDDLE HOOK
+0522; C; 0523; # CYRILLIC CAPITAL LETTER EN WITH MIDDLE HOOK
+0524; C; 0525; # CYRILLIC CAPITAL LETTER PE WITH DESCENDER
+0526; C; 0527; # CYRILLIC CAPITAL LETTER SHHA WITH DESCENDER
+0531; C; 0561; # ARMENIAN CAPITAL LETTER AYB
+0532; C; 0562; # ARMENIAN CAPITAL LETTER BEN
+0533; C; 0563; # ARMENIAN CAPITAL LETTER GIM
+0534; C; 0564; # ARMENIAN CAPITAL LETTER DA
+0535; C; 0565; # ARMENIAN CAPITAL LETTER ECH
+0536; C; 0566; # ARMENIAN CAPITAL LETTER ZA
+0537; C; 0567; # ARMENIAN CAPITAL LETTER EH
+0538; C; 0568; # ARMENIAN CAPITAL LETTER ET
+0539; C; 0569; # ARMENIAN CAPITAL LETTER TO
+053A; C; 056A; # ARMENIAN CAPITAL LETTER ZHE
+053B; C; 056B; # ARMENIAN CAPITAL LETTER INI
+053C; C; 056C; # ARMENIAN CAPITAL LETTER LIWN
+053D; C; 056D; # ARMENIAN CAPITAL LETTER XEH
+053E; C; 056E; # ARMENIAN CAPITAL LETTER CA
+053F; C; 056F; # ARMENIAN CAPITAL LETTER KEN
+0540; C; 0570; # ARMENIAN CAPITAL LETTER HO
+0541; C; 0571; # ARMENIAN CAPITAL LETTER JA
+0542; C; 0572; # ARMENIAN CAPITAL LETTER GHAD
+0543; C; 0573; # ARMENIAN CAPITAL LETTER CHEH
+0544; C; 0574; # ARMENIAN CAPITAL LETTER MEN
+0545; C; 0575; # ARMENIAN CAPITAL LETTER YI
+0546; C; 0576; # ARMENIAN CAPITAL LETTER NOW
+0547; C; 0577; # ARMENIAN CAPITAL LETTER SHA
+0548; C; 0578; # ARMENIAN CAPITAL LETTER VO
+0549; C; 0579; # ARMENIAN CAPITAL LETTER CHA
+054A; C; 057A; # ARMENIAN CAPITAL LETTER PEH
+054B; C; 057B; # ARMENIAN CAPITAL LETTER JHEH
+054C; C; 057C; # ARMENIAN CAPITAL LETTER RA
+054D; C; 057D; # ARMENIAN CAPITAL LETTER SEH
+054E; C; 057E; # ARMENIAN CAPITAL LETTER VEW
+054F; C; 057F; # ARMENIAN CAPITAL LETTER TIWN
+0550; C; 0580; # ARMENIAN CAPITAL LETTER REH
+0551; C; 0581; # ARMENIAN CAPITAL LETTER CO
+0552; C; 0582; # ARMENIAN CAPITAL LETTER YIWN
+0553; C; 0583; # ARMENIAN CAPITAL LETTER PIWR
+0554; C; 0584; # ARMENIAN CAPITAL LETTER KEH
+0555; C; 0585; # ARMENIAN CAPITAL LETTER OH
+0556; C; 0586; # ARMENIAN CAPITAL LETTER FEH
+0587; F; 0565 0582; # ARMENIAN SMALL LIGATURE ECH YIWN
+10A0; C; 2D00; # GEORGIAN CAPITAL LETTER AN
+10A1; C; 2D01; # GEORGIAN CAPITAL LETTER BAN
+10A2; C; 2D02; # GEORGIAN CAPITAL LETTER GAN
+10A3; C; 2D03; # GEORGIAN CAPITAL LETTER DON
+10A4; C; 2D04; # GEORGIAN CAPITAL LETTER EN
+10A5; C; 2D05; # GEORGIAN CAPITAL LETTER VIN
+10A6; C; 2D06; # GEORGIAN CAPITAL LETTER ZEN
+10A7; C; 2D07; # GEORGIAN CAPITAL LETTER TAN
+10A8; C; 2D08; # GEORGIAN CAPITAL LETTER IN
+10A9; C; 2D09; # GEORGIAN CAPITAL LETTER KAN
+10AA; C; 2D0A; # GEORGIAN CAPITAL LETTER LAS
+10AB; C; 2D0B; # GEORGIAN CAPITAL LETTER MAN
+10AC; C; 2D0C; # GEORGIAN CAPITAL LETTER NAR
+10AD; C; 2D0D; # GEORGIAN CAPITAL LETTER ON
+10AE; C; 2D0E; # GEORGIAN CAPITAL LETTER PAR
+10AF; C; 2D0F; # GEORGIAN CAPITAL LETTER ZHAR
+10B0; C; 2D10; # GEORGIAN CAPITAL LETTER RAE
+10B1; C; 2D11; # GEORGIAN CAPITAL LETTER SAN
+10B2; C; 2D12; # GEORGIAN CAPITAL LETTER TAR
+10B3; C; 2D13; # GEORGIAN CAPITAL LETTER UN
+10B4; C; 2D14; # GEORGIAN CAPITAL LETTER PHAR
+10B5; C; 2D15; # GEORGIAN CAPITAL LETTER KHAR
+10B6; C; 2D16; # GEORGIAN CAPITAL LETTER GHAN
+10B7; C; 2D17; # GEORGIAN CAPITAL LETTER QAR
+10B8; C; 2D18; # GEORGIAN CAPITAL LETTER SHIN
+10B9; C; 2D19; # GEORGIAN CAPITAL LETTER CHIN
+10BA; C; 2D1A; # GEORGIAN CAPITAL LETTER CAN
+10BB; C; 2D1B; # GEORGIAN CAPITAL LETTER JIL
+10BC; C; 2D1C; # GEORGIAN CAPITAL LETTER CIL
+10BD; C; 2D1D; # GEORGIAN CAPITAL LETTER CHAR
+10BE; C; 2D1E; # GEORGIAN CAPITAL LETTER XAN
+10BF; C; 2D1F; # GEORGIAN CAPITAL LETTER JHAN
+10C0; C; 2D20; # GEORGIAN CAPITAL LETTER HAE
+10C1; C; 2D21; # GEORGIAN CAPITAL LETTER HE
+10C2; C; 2D22; # GEORGIAN CAPITAL LETTER HIE
+10C3; C; 2D23; # GEORGIAN CAPITAL LETTER WE
+10C4; C; 2D24; # GEORGIAN CAPITAL LETTER HAR
+10C5; C; 2D25; # GEORGIAN CAPITAL LETTER HOE
+10C7; C; 2D27; # GEORGIAN CAPITAL LETTER YN
+10CD; C; 2D2D; # GEORGIAN CAPITAL LETTER AEN
+1E00; C; 1E01; # LATIN CAPITAL LETTER A WITH RING BELOW
+1E02; C; 1E03; # LATIN CAPITAL LETTER B WITH DOT ABOVE
+1E04; C; 1E05; # LATIN CAPITAL LETTER B WITH DOT BELOW
+1E06; C; 1E07; # LATIN CAPITAL LETTER B WITH LINE BELOW
+1E08; C; 1E09; # LATIN CAPITAL LETTER C WITH CEDILLA AND ACUTE
+1E0A; C; 1E0B; # LATIN CAPITAL LETTER D WITH DOT ABOVE
+1E0C; C; 1E0D; # LATIN CAPITAL LETTER D WITH DOT BELOW
+1E0E; C; 1E0F; # LATIN CAPITAL LETTER D WITH LINE BELOW
+1E10; C; 1E11; # LATIN CAPITAL LETTER D WITH CEDILLA
+1E12; C; 1E13; # LATIN CAPITAL LETTER D WITH CIRCUMFLEX BELOW
+1E14; C; 1E15; # LATIN CAPITAL LETTER E WITH MACRON AND GRAVE
+1E16; C; 1E17; # LATIN CAPITAL LETTER E WITH MACRON AND ACUTE
+1E18; C; 1E19; # LATIN CAPITAL LETTER E WITH CIRCUMFLEX BELOW
+1E1A; C; 1E1B; # LATIN CAPITAL LETTER E WITH TILDE BELOW
+1E1C; C; 1E1D; # LATIN CAPITAL LETTER E WITH CEDILLA AND BREVE
+1E1E; C; 1E1F; # LATIN CAPITAL LETTER F WITH DOT ABOVE
+1E20; C; 1E21; # LATIN CAPITAL LETTER G WITH MACRON
+1E22; C; 1E23; # LATIN CAPITAL LETTER H WITH DOT ABOVE
+1E24; C; 1E25; # LATIN CAPITAL LETTER H WITH DOT BELOW
+1E26; C; 1E27; # LATIN CAPITAL LETTER H WITH DIAERESIS
+1E28; C; 1E29; # LATIN CAPITAL LETTER H WITH CEDILLA
+1E2A; C; 1E2B; # LATIN CAPITAL LETTER H WITH BREVE BELOW
+1E2C; C; 1E2D; # LATIN CAPITAL LETTER I WITH TILDE BELOW
+1E2E; C; 1E2F; # LATIN CAPITAL LETTER I WITH DIAERESIS AND ACUTE
+1E30; C; 1E31; # LATIN CAPITAL LETTER K WITH ACUTE
+1E32; C; 1E33; # LATIN CAPITAL LETTER K WITH DOT BELOW
+1E34; C; 1E35; # LATIN CAPITAL LETTER K WITH LINE BELOW
+1E36; C; 1E37; # LATIN CAPITAL LETTER L WITH DOT BELOW
+1E38; C; 1E39; # LATIN CAPITAL LETTER L WITH DOT BELOW AND MACRON
+1E3A; C; 1E3B; # LATIN CAPITAL LETTER L WITH LINE BELOW
+1E3C; C; 1E3D; # LATIN CAPITAL LETTER L WITH CIRCUMFLEX BELOW
+1E3E; C; 1E3F; # LATIN CAPITAL LETTER M WITH ACUTE
+1E40; C; 1E41; # LATIN CAPITAL LETTER M WITH DOT ABOVE
+1E42; C; 1E43; # LATIN CAPITAL LETTER M WITH DOT BELOW
+1E44; C; 1E45; # LATIN CAPITAL LETTER N WITH DOT ABOVE
+1E46; C; 1E47; # LATIN CAPITAL LETTER N WITH DOT BELOW
+1E48; C; 1E49; # LATIN CAPITAL LETTER N WITH LINE BELOW
+1E4A; C; 1E4B; # LATIN CAPITAL LETTER N WITH CIRCUMFLEX BELOW
+1E4C; C; 1E4D; # LATIN CAPITAL LETTER O WITH TILDE AND ACUTE
+1E4E; C; 1E4F; # LATIN CAPITAL LETTER O WITH TILDE AND DIAERESIS
+1E50; C; 1E51; # LATIN CAPITAL LETTER O WITH MACRON AND GRAVE
+1E52; C; 1E53; # LATIN CAPITAL LETTER O WITH MACRON AND ACUTE
+1E54; C; 1E55; # LATIN CAPITAL LETTER P WITH ACUTE
+1E56; C; 1E57; # LATIN CAPITAL LETTER P WITH DOT ABOVE
+1E58; C; 1E59; # LATIN CAPITAL LETTER R WITH DOT ABOVE
+1E5A; C; 1E5B; # LATIN CAPITAL LETTER R WITH DOT BELOW
+1E5C; C; 1E5D; # LATIN CAPITAL LETTER R WITH DOT BELOW AND MACRON
+1E5E; C; 1E5F; # LATIN CAPITAL LETTER R WITH LINE BELOW
+1E60; C; 1E61; # LATIN CAPITAL LETTER S WITH DOT ABOVE
+1E62; C; 1E63; # LATIN CAPITAL LETTER S WITH DOT BELOW
+1E64; C; 1E65; # LATIN CAPITAL LETTER S WITH ACUTE AND DOT ABOVE
+1E66; C; 1E67; # LATIN CAPITAL LETTER S WITH CARON AND DOT ABOVE
+1E68; C; 1E69; # LATIN CAPITAL LETTER S WITH DOT BELOW AND DOT ABOVE
+1E6A; C; 1E6B; # LATIN CAPITAL LETTER T WITH DOT ABOVE
+1E6C; C; 1E6D; # LATIN CAPITAL LETTER T WITH DOT BELOW
+1E6E; C; 1E6F; # LATIN CAPITAL LETTER T WITH LINE BELOW
+1E70; C; 1E71; # LATIN CAPITAL LETTER T WITH CIRCUMFLEX BELOW
+1E72; C; 1E73; # LATIN CAPITAL LETTER U WITH DIAERESIS BELOW
+1E74; C; 1E75; # LATIN CAPITAL LETTER U WITH TILDE BELOW
+1E76; C; 1E77; # LATIN CAPITAL LETTER U WITH CIRCUMFLEX BELOW
+1E78; C; 1E79; # LATIN CAPITAL LETTER U WITH TILDE AND ACUTE
+1E7A; C; 1E7B; # LATIN CAPITAL LETTER U WITH MACRON AND DIAERESIS
+1E7C; C; 1E7D; # LATIN CAPITAL LETTER V WITH TILDE
+1E7E; C; 1E7F; # LATIN CAPITAL LETTER V WITH DOT BELOW
+1E80; C; 1E81; # LATIN CAPITAL LETTER W WITH GRAVE
+1E82; C; 1E83; # LATIN CAPITAL LETTER W WITH ACUTE
+1E84; C; 1E85; # LATIN CAPITAL LETTER W WITH DIAERESIS
+1E86; C; 1E87; # LATIN CAPITAL LETTER W WITH DOT ABOVE
+1E88; C; 1E89; # LATIN CAPITAL LETTER W WITH DOT BELOW
+1E8A; C; 1E8B; # LATIN CAPITAL LETTER X WITH DOT ABOVE
+1E8C; C; 1E8D; # LATIN CAPITAL LETTER X WITH DIAERESIS
+1E8E; C; 1E8F; # LATIN CAPITAL LETTER Y WITH DOT ABOVE
+1E90; C; 1E91; # LATIN CAPITAL LETTER Z WITH CIRCUMFLEX
+1E92; C; 1E93; # LATIN CAPITAL LETTER Z WITH DOT BELOW
+1E94; C; 1E95; # LATIN CAPITAL LETTER Z WITH LINE BELOW
+1E96; F; 0068 0331; # LATIN SMALL LETTER H WITH LINE BELOW
+1E97; F; 0074 0308; # LATIN SMALL LETTER T WITH DIAERESIS
+1E98; F; 0077 030A; # LATIN SMALL LETTER W WITH RING ABOVE
+1E99; F; 0079 030A; # LATIN SMALL LETTER Y WITH RING ABOVE
+1E9A; F; 0061 02BE; # LATIN SMALL LETTER A WITH RIGHT HALF RING
+1E9B; C; 1E61; # LATIN SMALL LETTER LONG S WITH DOT ABOVE
+1E9E; F; 0073 0073; # LATIN CAPITAL LETTER SHARP S
+1E9E; S; 00DF; # LATIN CAPITAL LETTER SHARP S
+1EA0; C; 1EA1; # LATIN CAPITAL LETTER A WITH DOT BELOW
+1EA2; C; 1EA3; # LATIN CAPITAL LETTER A WITH HOOK ABOVE
+1EA4; C; 1EA5; # LATIN CAPITAL LETTER A WITH CIRCUMFLEX AND ACUTE
+1EA6; C; 1EA7; # LATIN CAPITAL LETTER A WITH CIRCUMFLEX AND GRAVE
+1EA8; C; 1EA9; # LATIN CAPITAL LETTER A WITH CIRCUMFLEX AND HOOK ABOVE
+1EAA; C; 1EAB; # LATIN CAPITAL LETTER A WITH CIRCUMFLEX AND TILDE
+1EAC; C; 1EAD; # LATIN CAPITAL LETTER A WITH CIRCUMFLEX AND DOT BELOW
+1EAE; C; 1EAF; # LATIN CAPITAL LETTER A WITH BREVE AND ACUTE
+1EB0; C; 1EB1; # LATIN CAPITAL LETTER A WITH BREVE AND GRAVE
+1EB2; C; 1EB3; # LATIN CAPITAL LETTER A WITH BREVE AND HOOK ABOVE
+1EB4; C; 1EB5; # LATIN CAPITAL LETTER A WITH BREVE AND TILDE
+1EB6; C; 1EB7; # LATIN CAPITAL LETTER A WITH BREVE AND DOT BELOW
+1EB8; C; 1EB9; # LATIN CAPITAL LETTER E WITH DOT BELOW
+1EBA; C; 1EBB; # LATIN CAPITAL LETTER E WITH HOOK ABOVE
+1EBC; C; 1EBD; # LATIN CAPITAL LETTER E WITH TILDE
+1EBE; C; 1EBF; # LATIN CAPITAL LETTER E WITH CIRCUMFLEX AND ACUTE
+1EC0; C; 1EC1; # LATIN CAPITAL LETTER E WITH CIRCUMFLEX AND GRAVE
+1EC2; C; 1EC3; # LATIN CAPITAL LETTER E WITH CIRCUMFLEX AND HOOK ABOVE
+1EC4; C; 1EC5; # LATIN CAPITAL LETTER E WITH CIRCUMFLEX AND TILDE
+1EC6; C; 1EC7; # LATIN CAPITAL LETTER E WITH CIRCUMFLEX AND DOT BELOW
+1EC8; C; 1EC9; # LATIN CAPITAL LETTER I WITH HOOK ABOVE
+1ECA; C; 1ECB; # LATIN CAPITAL LETTER I WITH DOT BELOW
+1ECC; C; 1ECD; # LATIN CAPITAL LETTER O WITH DOT BELOW
+1ECE; C; 1ECF; # LATIN CAPITAL LETTER O WITH HOOK ABOVE
+1ED0; C; 1ED1; # LATIN CAPITAL LETTER O WITH CIRCUMFLEX AND ACUTE
+1ED2; C; 1ED3; # LATIN CAPITAL LETTER O WITH CIRCUMFLEX AND GRAVE
+1ED4; C; 1ED5; # LATIN CAPITAL LETTER O WITH CIRCUMFLEX AND HOOK ABOVE
+1ED6; C; 1ED7; # LATIN CAPITAL LETTER O WITH CIRCUMFLEX AND TILDE
+1ED8; C; 1ED9; # LATIN CAPITAL LETTER O WITH CIRCUMFLEX AND DOT BELOW
+1EDA; C; 1EDB; # LATIN CAPITAL LETTER O WITH HORN AND ACUTE
+1EDC; C; 1EDD; # LATIN CAPITAL LETTER O WITH HORN AND GRAVE
+1EDE; C; 1EDF; # LATIN CAPITAL LETTER O WITH HORN AND HOOK ABOVE
+1EE0; C; 1EE1; # LATIN CAPITAL LETTER O WITH HORN AND TILDE
+1EE2; C; 1EE3; # LATIN CAPITAL LETTER O WITH HORN AND DOT BELOW
+1EE4; C; 1EE5; # LATIN CAPITAL LETTER U WITH DOT BELOW
+1EE6; C; 1EE7; # LATIN CAPITAL LETTER U WITH HOOK ABOVE
+1EE8; C; 1EE9; # LATIN CAPITAL LETTER U WITH HORN AND ACUTE
+1EEA; C; 1EEB; # LATIN CAPITAL LETTER U WITH HORN AND GRAVE
+1EEC; C; 1EED; # LATIN CAPITAL LETTER U WITH HORN AND HOOK ABOVE
+1EEE; C; 1EEF; # LATIN CAPITAL LETTER U WITH HORN AND TILDE
+1EF0; C; 1EF1; # LATIN CAPITAL LETTER U WITH HORN AND DOT BELOW
+1EF2; C; 1EF3; # LATIN CAPITAL LETTER Y WITH GRAVE
+1EF4; C; 1EF5; # LATIN CAPITAL LETTER Y WITH DOT BELOW
+1EF6; C; 1EF7; # LATIN CAPITAL LETTER Y WITH HOOK ABOVE
+1EF8; C; 1EF9; # LATIN CAPITAL LETTER Y WITH TILDE
+1EFA; C; 1EFB; # LATIN CAPITAL LETTER MIDDLE-WELSH LL
+1EFC; C; 1EFD; # LATIN CAPITAL LETTER MIDDLE-WELSH V
+1EFE; C; 1EFF; # LATIN CAPITAL LETTER Y WITH LOOP
+1F08; C; 1F00; # GREEK CAPITAL LETTER ALPHA WITH PSILI
+1F09; C; 1F01; # GREEK CAPITAL LETTER ALPHA WITH DASIA
+1F0A; C; 1F02; # GREEK CAPITAL LETTER ALPHA WITH PSILI AND VARIA
+1F0B; C; 1F03; # GREEK CAPITAL LETTER ALPHA WITH DASIA AND VARIA
+1F0C; C; 1F04; # GREEK CAPITAL LETTER ALPHA WITH PSILI AND OXIA
+1F0D; C; 1F05; # GREEK CAPITAL LETTER ALPHA WITH DASIA AND OXIA
+1F0E; C; 1F06; # GREEK CAPITAL LETTER ALPHA WITH PSILI AND PERISPOMENI
+1F0F; C; 1F07; # GREEK CAPITAL LETTER ALPHA WITH DASIA AND PERISPOMENI
+1F18; C; 1F10; # GREEK CAPITAL LETTER EPSILON WITH PSILI
+1F19; C; 1F11; # GREEK CAPITAL LETTER EPSILON WITH DASIA
+1F1A; C; 1F12; # GREEK CAPITAL LETTER EPSILON WITH PSILI AND VARIA
+1F1B; C; 1F13; # GREEK CAPITAL LETTER EPSILON WITH DASIA AND VARIA
+1F1C; C; 1F14; # GREEK CAPITAL LETTER EPSILON WITH PSILI AND OXIA
+1F1D; C; 1F15; # GREEK CAPITAL LETTER EPSILON WITH DASIA AND OXIA
+1F28; C; 1F20; # GREEK CAPITAL LETTER ETA WITH PSILI
+1F29; C; 1F21; # GREEK CAPITAL LETTER ETA WITH DASIA
+1F2A; C; 1F22; # GREEK CAPITAL LETTER ETA WITH PSILI AND VARIA
+1F2B; C; 1F23; # GREEK CAPITAL LETTER ETA WITH DASIA AND VARIA
+1F2C; C; 1F24; # GREEK CAPITAL LETTER ETA WITH PSILI AND OXIA
+1F2D; C; 1F25; # GREEK CAPITAL LETTER ETA WITH DASIA AND OXIA
+1F2E; C; 1F26; # GREEK CAPITAL LETTER ETA WITH PSILI AND PERISPOMENI
+1F2F; C; 1F27; # GREEK CAPITAL LETTER ETA WITH DASIA AND PERISPOMENI
+1F38; C; 1F30; # GREEK CAPITAL LETTER IOTA WITH PSILI
+1F39; C; 1F31; # GREEK CAPITAL LETTER IOTA WITH DASIA
+1F3A; C; 1F32; # GREEK CAPITAL LETTER IOTA WITH PSILI AND VARIA
+1F3B; C; 1F33; # GREEK CAPITAL LETTER IOTA WITH DASIA AND VARIA
+1F3C; C; 1F34; # GREEK CAPITAL LETTER IOTA WITH PSILI AND OXIA
+1F3D; C; 1F35; # GREEK CAPITAL LETTER IOTA WITH DASIA AND OXIA
+1F3E; C; 1F36; # GREEK CAPITAL LETTER IOTA WITH PSILI AND PERISPOMENI
+1F3F; C; 1F37; # GREEK CAPITAL LETTER IOTA WITH DASIA AND PERISPOMENI
+1F48; C; 1F40; # GREEK CAPITAL LETTER OMICRON WITH PSILI
+1F49; C; 1F41; # GREEK CAPITAL LETTER OMICRON WITH DASIA
+1F4A; C; 1F42; # GREEK CAPITAL LETTER OMICRON WITH PSILI AND VARIA
+1F4B; C; 1F43; # GREEK CAPITAL LETTER OMICRON WITH DASIA AND VARIA
+1F4C; C; 1F44; # GREEK CAPITAL LETTER OMICRON WITH PSILI AND OXIA
+1F4D; C; 1F45; # GREEK CAPITAL LETTER OMICRON WITH DASIA AND OXIA
+1F50; F; 03C5 0313; # GREEK SMALL LETTER UPSILON WITH PSILI
+1F52; F; 03C5 0313 0300; # GREEK SMALL LETTER UPSILON WITH PSILI AND VARIA
+1F54; F; 03C5 0313 0301; # GREEK SMALL LETTER UPSILON WITH PSILI AND OXIA
+1F56; F; 03C5 0313 0342; # GREEK SMALL LETTER UPSILON WITH PSILI AND PERISPOMENI
+1F59; C; 1F51; # GREEK CAPITAL LETTER UPSILON WITH DASIA
+1F5B; C; 1F53; # GREEK CAPITAL LETTER UPSILON WITH DASIA AND VARIA
+1F5D; C; 1F55; # GREEK CAPITAL LETTER UPSILON WITH DASIA AND OXIA
+1F5F; C; 1F57; # GREEK CAPITAL LETTER UPSILON WITH DASIA AND PERISPOMENI
+1F68; C; 1F60; # GREEK CAPITAL LETTER OMEGA WITH PSILI
+1F69; C; 1F61; # GREEK CAPITAL LETTER OMEGA WITH DASIA
+1F6A; C; 1F62; # GREEK CAPITAL LETTER OMEGA WITH PSILI AND VARIA
+1F6B; C; 1F63; # GREEK CAPITAL LETTER OMEGA WITH DASIA AND VARIA
+1F6C; C; 1F64; # GREEK CAPITAL LETTER OMEGA WITH PSILI AND OXIA
+1F6D; C; 1F65; # GREEK CAPITAL LETTER OMEGA WITH DASIA AND OXIA
+1F6E; C; 1F66; # GREEK CAPITAL LETTER OMEGA WITH PSILI AND PERISPOMENI
+1F6F; C; 1F67; # GREEK CAPITAL LETTER OMEGA WITH DASIA AND PERISPOMENI
+1F80; F; 1F00 03B9; # GREEK SMALL LETTER ALPHA WITH PSILI AND YPOGEGRAMMENI
+1F81; F; 1F01 03B9; # GREEK SMALL LETTER ALPHA WITH DASIA AND YPOGEGRAMMENI
+1F82; F; 1F02 03B9; # GREEK SMALL LETTER ALPHA WITH PSILI AND VARIA AND YPOGEGRAMMENI
+1F83; F; 1F03 03B9; # GREEK SMALL LETTER ALPHA WITH DASIA AND VARIA AND YPOGEGRAMMENI
+1F84; F; 1F04 03B9; # GREEK SMALL LETTER ALPHA WITH PSILI AND OXIA AND YPOGEGRAMMENI
+1F85; F; 1F05 03B9; # GREEK SMALL LETTER ALPHA WITH DASIA AND OXIA AND YPOGEGRAMMENI
+1F86; F; 1F06 03B9; # GREEK SMALL LETTER ALPHA WITH PSILI AND PERISPOMENI AND YPOGEGRAMMENI
+1F87; F; 1F07 03B9; # GREEK SMALL LETTER ALPHA WITH DASIA AND PERISPOMENI AND YPOGEGRAMMENI
+1F88; F; 1F00 03B9; # GREEK CAPITAL LETTER ALPHA WITH PSILI AND PROSGEGRAMMENI
+1F88; S; 1F80; # GREEK CAPITAL LETTER ALPHA WITH PSILI AND PROSGEGRAMMENI
+1F89; F; 1F01 03B9; # GREEK CAPITAL LETTER ALPHA WITH DASIA AND PROSGEGRAMMENI
+1F89; S; 1F81; # GREEK CAPITAL LETTER ALPHA WITH DASIA AND PROSGEGRAMMENI
+1F8A; F; 1F02 03B9; # GREEK CAPITAL LETTER ALPHA WITH PSILI AND VARIA AND PROSGEGRAMMENI
+1F8A; S; 1F82; # GREEK CAPITAL LETTER ALPHA WITH PSILI AND VARIA AND PROSGEGRAMMENI
+1F8B; F; 1F03 03B9; # GREEK CAPITAL LETTER ALPHA WITH DASIA AND VARIA AND PROSGEGRAMMENI
+1F8B; S; 1F83; # GREEK CAPITAL LETTER ALPHA WITH DASIA AND VARIA AND PROSGEGRAMMENI
+1F8C; F; 1F04 03B9; # GREEK CAPITAL LETTER ALPHA WITH PSILI AND OXIA AND PROSGEGRAMMENI
+1F8C; S; 1F84; # GREEK CAPITAL LETTER ALPHA WITH PSILI AND OXIA AND PROSGEGRAMMENI
+1F8D; F; 1F05 03B9; # GREEK CAPITAL LETTER ALPHA WITH DASIA AND OXIA AND PROSGEGRAMMENI
+1F8D; S; 1F85; # GREEK CAPITAL LETTER ALPHA WITH DASIA AND OXIA AND PROSGEGRAMMENI
+1F8E; F; 1F06 03B9; # GREEK CAPITAL LETTER ALPHA WITH PSILI AND PERISPOMENI AND PROSGEGRAMMENI
+1F8E; S; 1F86; # GREEK CAPITAL LETTER ALPHA WITH PSILI AND PERISPOMENI AND PROSGEGRAMMENI
+1F8F; F; 1F07 03B9; # GREEK CAPITAL LETTER ALPHA WITH DASIA AND PERISPOMENI AND PROSGEGRAMMENI
+1F8F; S; 1F87; # GREEK CAPITAL LETTER ALPHA WITH DASIA AND PERISPOMENI AND PROSGEGRAMMENI
+1F90; F; 1F20 03B9; # GREEK SMALL LETTER ETA WITH PSILI AND YPOGEGRAMMENI
+1F91; F; 1F21 03B9; # GREEK SMALL LETTER ETA WITH DASIA AND YPOGEGRAMMENI
+1F92; F; 1F22 03B9; # GREEK SMALL LETTER ETA WITH PSILI AND VARIA AND YPOGEGRAMMENI
+1F93; F; 1F23 03B9; # GREEK SMALL LETTER ETA WITH DASIA AND VARIA AND YPOGEGRAMMENI
+1F94; F; 1F24 03B9; # GREEK SMALL LETTER ETA WITH PSILI AND OXIA AND YPOGEGRAMMENI
+1F95; F; 1F25 03B9; # GREEK SMALL LETTER ETA WITH DASIA AND OXIA AND YPOGEGRAMMENI
+1F96; F; 1F26 03B9; # GREEK SMALL LETTER ETA WITH PSILI AND PERISPOMENI AND YPOGEGRAMMENI
+1F97; F; 1F27 03B9; # GREEK SMALL LETTER ETA WITH DASIA AND PERISPOMENI AND YPOGEGRAMMENI
+1F98; F; 1F20 03B9; # GREEK CAPITAL LETTER ETA WITH PSILI AND PROSGEGRAMMENI
+1F98; S; 1F90; # GREEK CAPITAL LETTER ETA WITH PSILI AND PROSGEGRAMMENI
+1F99; F; 1F21 03B9; # GREEK CAPITAL LETTER ETA WITH DASIA AND PROSGEGRAMMENI
+1F99; S; 1F91; # GREEK CAPITAL LETTER ETA WITH DASIA AND PROSGEGRAMMENI
+1F9A; F; 1F22 03B9; # GREEK CAPITAL LETTER ETA WITH PSILI AND VARIA AND PROSGEGRAMMENI
+1F9A; S; 1F92; # GREEK CAPITAL LETTER ETA WITH PSILI AND VARIA AND PROSGEGRAMMENI
+1F9B; F; 1F23 03B9; # GREEK CAPITAL LETTER ETA WITH DASIA AND VARIA AND PROSGEGRAMMENI
+1F9B; S; 1F93; # GREEK CAPITAL LETTER ETA WITH DASIA AND VARIA AND PROSGEGRAMMENI
+1F9C; F; 1F24 03B9; # GREEK CAPITAL LETTER ETA WITH PSILI AND OXIA AND PROSGEGRAMMENI
+1F9C; S; 1F94; # GREEK CAPITAL LETTER ETA WITH PSILI AND OXIA AND PROSGEGRAMMENI
+1F9D; F; 1F25 03B9; # GREEK CAPITAL LETTER ETA WITH DASIA AND OXIA AND PROSGEGRAMMENI
+1F9D; S; 1F95; # GREEK CAPITAL LETTER ETA WITH DASIA AND OXIA AND PROSGEGRAMMENI
+1F9E; F; 1F26 03B9; # GREEK CAPITAL LETTER ETA WITH PSILI AND PERISPOMENI AND PROSGEGRAMMENI
+1F9E; S; 1F96; # GREEK CAPITAL LETTER ETA WITH PSILI AND PERISPOMENI AND PROSGEGRAMMENI
+1F9F; F; 1F27 03B9; # GREEK CAPITAL LETTER ETA WITH DASIA AND PERISPOMENI AND PROSGEGRAMMENI
+1F9F; S; 1F97; # GREEK CAPITAL LETTER ETA WITH DASIA AND PERISPOMENI AND PROSGEGRAMMENI
+1FA0; F; 1F60 03B9; # GREEK SMALL LETTER OMEGA WITH PSILI AND YPOGEGRAMMENI
+1FA1; F; 1F61 03B9; # GREEK SMALL LETTER OMEGA WITH DASIA AND YPOGEGRAMMENI
+1FA2; F; 1F62 03B9; # GREEK SMALL LETTER OMEGA WITH PSILI AND VARIA AND YPOGEGRAMMENI
+1FA3; F; 1F63 03B9; # GREEK SMALL LETTER OMEGA WITH DASIA AND VARIA AND YPOGEGRAMMENI
+1FA4; F; 1F64 03B9; # GREEK SMALL LETTER OMEGA WITH PSILI AND OXIA AND YPOGEGRAMMENI
+1FA5; F; 1F65 03B9; # GREEK SMALL LETTER OMEGA WITH DASIA AND OXIA AND YPOGEGRAMMENI
+1FA6; F; 1F66 03B9; # GREEK SMALL LETTER OMEGA WITH PSILI AND PERISPOMENI AND YPOGEGRAMMENI
+1FA7; F; 1F67 03B9; # GREEK SMALL LETTER OMEGA WITH DASIA AND PERISPOMENI AND YPOGEGRAMMENI
+1FA8; F; 1F60 03B9; # GREEK CAPITAL LETTER OMEGA WITH PSILI AND PROSGEGRAMMENI
+1FA8; S; 1FA0; # GREEK CAPITAL LETTER OMEGA WITH PSILI AND PROSGEGRAMMENI
+1FA9; F; 1F61 03B9; # GREEK CAPITAL LETTER OMEGA WITH DASIA AND PROSGEGRAMMENI
+1FA9; S; 1FA1; # GREEK CAPITAL LETTER OMEGA WITH DASIA AND PROSGEGRAMMENI
+1FAA; F; 1F62 03B9; # GREEK CAPITAL LETTER OMEGA WITH PSILI AND VARIA AND PROSGEGRAMMENI
+1FAA; S; 1FA2; # GREEK CAPITAL LETTER OMEGA WITH PSILI AND VARIA AND PROSGEGRAMMENI
+1FAB; F; 1F63 03B9; # GREEK CAPITAL LETTER OMEGA WITH DASIA AND VARIA AND PROSGEGRAMMENI
+1FAB; S; 1FA3; # GREEK CAPITAL LETTER OMEGA WITH DASIA AND VARIA AND PROSGEGRAMMENI
+1FAC; F; 1F64 03B9; # GREEK CAPITAL LETTER OMEGA WITH PSILI AND OXIA AND PROSGEGRAMMENI
+1FAC; S; 1FA4; # GREEK CAPITAL LETTER OMEGA WITH PSILI AND OXIA AND PROSGEGRAMMENI
+1FAD; F; 1F65 03B9; # GREEK CAPITAL LETTER OMEGA WITH DASIA AND OXIA AND PROSGEGRAMMENI
+1FAD; S; 1FA5; # GREEK CAPITAL LETTER OMEGA WITH DASIA AND OXIA AND PROSGEGRAMMENI
+1FAE; F; 1F66 03B9; # GREEK CAPITAL LETTER OMEGA WITH PSILI AND PERISPOMENI AND PROSGEGRAMMENI
+1FAE; S; 1FA6; # GREEK CAPITAL LETTER OMEGA WITH PSILI AND PERISPOMENI AND PROSGEGRAMMENI
+1FAF; F; 1F67 03B9; # GREEK CAPITAL LETTER OMEGA WITH DASIA AND PERISPOMENI AND PROSGEGRAMMENI
+1FAF; S; 1FA7; # GREEK CAPITAL LETTER OMEGA WITH DASIA AND PERISPOMENI AND PROSGEGRAMMENI
+1FB2; F; 1F70 03B9; # GREEK SMALL LETTER ALPHA WITH VARIA AND YPOGEGRAMMENI
+1FB3; F; 03B1 03B9; # GREEK SMALL LETTER ALPHA WITH YPOGEGRAMMENI
+1FB4; F; 03AC 03B9; # GREEK SMALL LETTER ALPHA WITH OXIA AND YPOGEGRAMMENI
+1FB6; F; 03B1 0342; # GREEK SMALL LETTER ALPHA WITH PERISPOMENI
+1FB7; F; 03B1 0342 03B9; # GREEK SMALL LETTER ALPHA WITH PERISPOMENI AND YPOGEGRAMMENI
+1FB8; C; 1FB0; # GREEK CAPITAL LETTER ALPHA WITH VRACHY
+1FB9; C; 1FB1; # GREEK CAPITAL LETTER ALPHA WITH MACRON
+1FBA; C; 1F70; # GREEK CAPITAL LETTER ALPHA WITH VARIA
+1FBB; C; 1F71; # GREEK CAPITAL LETTER ALPHA WITH OXIA
+1FBC; F; 03B1 03B9; # GREEK CAPITAL LETTER ALPHA WITH PROSGEGRAMMENI
+1FBC; S; 1FB3; # GREEK CAPITAL LETTER ALPHA WITH PROSGEGRAMMENI
+1FBE; C; 03B9; # GREEK PROSGEGRAMMENI
+1FC2; F; 1F74 03B9; # GREEK SMALL LETTER ETA WITH VARIA AND YPOGEGRAMMENI
+1FC3; F; 03B7 03B9; # GREEK SMALL LETTER ETA WITH YPOGEGRAMMENI
+1FC4; F; 03AE 03B9; # GREEK SMALL LETTER ETA WITH OXIA AND YPOGEGRAMMENI
+1FC6; F; 03B7 0342; # GREEK SMALL LETTER ETA WITH PERISPOMENI
+1FC7; F; 03B7 0342 03B9; # GREEK SMALL LETTER ETA WITH PERISPOMENI AND YPOGEGRAMMENI
+1FC8; C; 1F72; # GREEK CAPITAL LETTER EPSILON WITH VARIA
+1FC9; C; 1F73; # GREEK CAPITAL LETTER EPSILON WITH OXIA
+1FCA; C; 1F74; # GREEK CAPITAL LETTER ETA WITH VARIA
+1FCB; C; 1F75; # GREEK CAPITAL LETTER ETA WITH OXIA
+1FCC; F; 03B7 03B9; # GREEK CAPITAL LETTER ETA WITH PROSGEGRAMMENI
+1FCC; S; 1FC3; # GREEK CAPITAL LETTER ETA WITH PROSGEGRAMMENI
+1FD2; F; 03B9 0308 0300; # GREEK SMALL LETTER IOTA WITH DIALYTIKA AND VARIA
+1FD3; F; 03B9 0308 0301; # GREEK SMALL LETTER IOTA WITH DIALYTIKA AND OXIA
+1FD6; F; 03B9 0342; # GREEK SMALL LETTER IOTA WITH PERISPOMENI
+1FD7; F; 03B9 0308 0342; # GREEK SMALL LETTER IOTA WITH DIALYTIKA AND PERISPOMENI
+1FD8; C; 1FD0; # GREEK CAPITAL LETTER IOTA WITH VRACHY
+1FD9; C; 1FD1; # GREEK CAPITAL LETTER IOTA WITH MACRON
+1FDA; C; 1F76; # GREEK CAPITAL LETTER IOTA WITH VARIA
+1FDB; C; 1F77; # GREEK CAPITAL LETTER IOTA WITH OXIA
+1FE2; F; 03C5 0308 0300; # GREEK SMALL LETTER UPSILON WITH DIALYTIKA AND VARIA
+1FE3; F; 03C5 0308 0301; # GREEK SMALL LETTER UPSILON WITH DIALYTIKA AND OXIA
+1FE4; F; 03C1 0313; # GREEK SMALL LETTER RHO WITH PSILI
+1FE6; F; 03C5 0342; # GREEK SMALL LETTER UPSILON WITH PERISPOMENI
+1FE7; F; 03C5 0308 0342; # GREEK SMALL LETTER UPSILON WITH DIALYTIKA AND PERISPOMENI
+1FE8; C; 1FE0; # GREEK CAPITAL LETTER UPSILON WITH VRACHY
+1FE9; C; 1FE1; # GREEK CAPITAL LETTER UPSILON WITH MACRON
+1FEA; C; 1F7A; # GREEK CAPITAL LETTER UPSILON WITH VARIA
+1FEB; C; 1F7B; # GREEK CAPITAL LETTER UPSILON WITH OXIA
+1FEC; C; 1FE5; # GREEK CAPITAL LETTER RHO WITH DASIA
+1FF2; F; 1F7C 03B9; # GREEK SMALL LETTER OMEGA WITH VARIA AND YPOGEGRAMMENI
+1FF3; F; 03C9 03B9; # GREEK SMALL LETTER OMEGA WITH YPOGEGRAMMENI
+1FF4; F; 03CE 03B9; # GREEK SMALL LETTER OMEGA WITH OXIA AND YPOGEGRAMMENI
+1FF6; F; 03C9 0342; # GREEK SMALL LETTER OMEGA WITH PERISPOMENI
+1FF7; F; 03C9 0342 03B9; # GREEK SMALL LETTER OMEGA WITH PERISPOMENI AND YPOGEGRAMMENI
+1FF8; C; 1F78; # GREEK CAPITAL LETTER OMICRON WITH VARIA
+1FF9; C; 1F79; # GREEK CAPITAL LETTER OMICRON WITH OXIA
+1FFA; C; 1F7C; # GREEK CAPITAL LETTER OMEGA WITH VARIA
+1FFB; C; 1F7D; # GREEK CAPITAL LETTER OMEGA WITH OXIA
+1FFC; F; 03C9 03B9; # GREEK CAPITAL LETTER OMEGA WITH PROSGEGRAMMENI
+1FFC; S; 1FF3; # GREEK CAPITAL LETTER OMEGA WITH PROSGEGRAMMENI
+2126; C; 03C9; # OHM SIGN
+212A; C; 006B; # KELVIN SIGN
+212B; C; 00E5; # ANGSTROM SIGN
+2132; C; 214E; # TURNED CAPITAL F
+2160; C; 2170; # ROMAN NUMERAL ONE
+2161; C; 2171; # ROMAN NUMERAL TWO
+2162; C; 2172; # ROMAN NUMERAL THREE
+2163; C; 2173; # ROMAN NUMERAL FOUR
+2164; C; 2174; # ROMAN NUMERAL FIVE
+2165; C; 2175; # ROMAN NUMERAL SIX
+2166; C; 2176; # ROMAN NUMERAL SEVEN
+2167; C; 2177; # ROMAN NUMERAL EIGHT
+2168; C; 2178; # ROMAN NUMERAL NINE
+2169; C; 2179; # ROMAN NUMERAL TEN
+216A; C; 217A; # ROMAN NUMERAL ELEVEN
+216B; C; 217B; # ROMAN NUMERAL TWELVE
+216C; C; 217C; # ROMAN NUMERAL FIFTY
+216D; C; 217D; # ROMAN NUMERAL ONE HUNDRED
+216E; C; 217E; # ROMAN NUMERAL FIVE HUNDRED
+216F; C; 217F; # ROMAN NUMERAL ONE THOUSAND
+2183; C; 2184; # ROMAN NUMERAL REVERSED ONE HUNDRED
+24B6; C; 24D0; # CIRCLED LATIN CAPITAL LETTER A
+24B7; C; 24D1; # CIRCLED LATIN CAPITAL LETTER B
+24B8; C; 24D2; # CIRCLED LATIN CAPITAL LETTER C
+24B9; C; 24D3; # CIRCLED LATIN CAPITAL LETTER D
+24BA; C; 24D4; # CIRCLED LATIN CAPITAL LETTER E
+24BB; C; 24D5; # CIRCLED LATIN CAPITAL LETTER F
+24BC; C; 24D6; # CIRCLED LATIN CAPITAL LETTER G
+24BD; C; 24D7; # CIRCLED LATIN CAPITAL LETTER H
+24BE; C; 24D8; # CIRCLED LATIN CAPITAL LETTER I
+24BF; C; 24D9; # CIRCLED LATIN CAPITAL LETTER J
+24C0; C; 24DA; # CIRCLED LATIN CAPITAL LETTER K
+24C1; C; 24DB; # CIRCLED LATIN CAPITAL LETTER L
+24C2; C; 24DC; # CIRCLED LATIN CAPITAL LETTER M
+24C3; C; 24DD; # CIRCLED LATIN CAPITAL LETTER N
+24C4; C; 24DE; # CIRCLED LATIN CAPITAL LETTER O
+24C5; C; 24DF; # CIRCLED LATIN CAPITAL LETTER P
+24C6; C; 24E0; # CIRCLED LATIN CAPITAL LETTER Q
+24C7; C; 24E1; # CIRCLED LATIN CAPITAL LETTER R
+24C8; C; 24E2; # CIRCLED LATIN CAPITAL LETTER S
+24C9; C; 24E3; # CIRCLED LATIN CAPITAL LETTER T
+24CA; C; 24E4; # CIRCLED LATIN CAPITAL LETTER U
+24CB; C; 24E5; # CIRCLED LATIN CAPITAL LETTER V
+24CC; C; 24E6; # CIRCLED LATIN CAPITAL LETTER W
+24CD; C; 24E7; # CIRCLED LATIN CAPITAL LETTER X
+24CE; C; 24E8; # CIRCLED LATIN CAPITAL LETTER Y
+24CF; C; 24E9; # CIRCLED LATIN CAPITAL LETTER Z
+2C00; C; 2C30; # GLAGOLITIC CAPITAL LETTER AZU
+2C01; C; 2C31; # GLAGOLITIC CAPITAL LETTER BUKY
+2C02; C; 2C32; # GLAGOLITIC CAPITAL LETTER VEDE
+2C03; C; 2C33; # GLAGOLITIC CAPITAL LETTER GLAGOLI
+2C04; C; 2C34; # GLAGOLITIC CAPITAL LETTER DOBRO
+2C05; C; 2C35; # GLAGOLITIC CAPITAL LETTER YESTU
+2C06; C; 2C36; # GLAGOLITIC CAPITAL LETTER ZHIVETE
+2C07; C; 2C37; # GLAGOLITIC CAPITAL LETTER DZELO
+2C08; C; 2C38; # GLAGOLITIC CAPITAL LETTER ZEMLJA
+2C09; C; 2C39; # GLAGOLITIC CAPITAL LETTER IZHE
+2C0A; C; 2C3A; # GLAGOLITIC CAPITAL LETTER INITIAL IZHE
+2C0B; C; 2C3B; # GLAGOLITIC CAPITAL LETTER I
+2C0C; C; 2C3C; # GLAGOLITIC CAPITAL LETTER DJERVI
+2C0D; C; 2C3D; # GLAGOLITIC CAPITAL LETTER KAKO
+2C0E; C; 2C3E; # GLAGOLITIC CAPITAL LETTER LJUDIJE
+2C0F; C; 2C3F; # GLAGOLITIC CAPITAL LETTER MYSLITE
+2C10; C; 2C40; # GLAGOLITIC CAPITAL LETTER NASHI
+2C11; C; 2C41; # GLAGOLITIC CAPITAL LETTER ONU
+2C12; C; 2C42; # GLAGOLITIC CAPITAL LETTER POKOJI
+2C13; C; 2C43; # GLAGOLITIC CAPITAL LETTER RITSI
+2C14; C; 2C44; # GLAGOLITIC CAPITAL LETTER SLOVO
+2C15; C; 2C45; # GLAGOLITIC CAPITAL LETTER TVRIDO
+2C16; C; 2C46; # GLAGOLITIC CAPITAL LETTER UKU
+2C17; C; 2C47; # GLAGOLITIC CAPITAL LETTER FRITU
+2C18; C; 2C48; # GLAGOLITIC CAPITAL LETTER HERU
+2C19; C; 2C49; # GLAGOLITIC CAPITAL LETTER OTU
+2C1A; C; 2C4A; # GLAGOLITIC CAPITAL LETTER PE
+2C1B; C; 2C4B; # GLAGOLITIC CAPITAL LETTER SHTA
+2C1C; C; 2C4C; # GLAGOLITIC CAPITAL LETTER TSI
+2C1D; C; 2C4D; # GLAGOLITIC CAPITAL LETTER CHRIVI
+2C1E; C; 2C4E; # GLAGOLITIC CAPITAL LETTER SHA
+2C1F; C; 2C4F; # GLAGOLITIC CAPITAL LETTER YERU
+2C20; C; 2C50; # GLAGOLITIC CAPITAL LETTER YERI
+2C21; C; 2C51; # GLAGOLITIC CAPITAL LETTER YATI
+2C22; C; 2C52; # GLAGOLITIC CAPITAL LETTER SPIDERY HA
+2C23; C; 2C53; # GLAGOLITIC CAPITAL LETTER YU
+2C24; C; 2C54; # GLAGOLITIC CAPITAL LETTER SMALL YUS
+2C25; C; 2C55; # GLAGOLITIC CAPITAL LETTER SMALL YUS WITH TAIL
+2C26; C; 2C56; # GLAGOLITIC CAPITAL LETTER YO
+2C27; C; 2C57; # GLAGOLITIC CAPITAL LETTER IOTATED SMALL YUS
+2C28; C; 2C58; # GLAGOLITIC CAPITAL LETTER BIG YUS
+2C29; C; 2C59; # GLAGOLITIC CAPITAL LETTER IOTATED BIG YUS
+2C2A; C; 2C5A; # GLAGOLITIC CAPITAL LETTER FITA
+2C2B; C; 2C5B; # GLAGOLITIC CAPITAL LETTER IZHITSA
+2C2C; C; 2C5C; # GLAGOLITIC CAPITAL LETTER SHTAPIC
+2C2D; C; 2C5D; # GLAGOLITIC CAPITAL LETTER TROKUTASTI A
+2C2E; C; 2C5E; # GLAGOLITIC CAPITAL LETTER LATINATE MYSLITE
+2C60; C; 2C61; # LATIN CAPITAL LETTER L WITH DOUBLE BAR
+2C62; C; 026B; # LATIN CAPITAL LETTER L WITH MIDDLE TILDE
+2C63; C; 1D7D; # LATIN CAPITAL LETTER P WITH STROKE
+2C64; C; 027D; # LATIN CAPITAL LETTER R WITH TAIL
+2C67; C; 2C68; # LATIN CAPITAL LETTER H WITH DESCENDER
+2C69; C; 2C6A; # LATIN CAPITAL LETTER K WITH DESCENDER
+2C6B; C; 2C6C; # LATIN CAPITAL LETTER Z WITH DESCENDER
+2C6D; C; 0251; # LATIN CAPITAL LETTER ALPHA
+2C6E; C; 0271; # LATIN CAPITAL LETTER M WITH HOOK
+2C6F; C; 0250; # LATIN CAPITAL LETTER TURNED A
+2C70; C; 0252; # LATIN CAPITAL LETTER TURNED ALPHA
+2C72; C; 2C73; # LATIN CAPITAL LETTER W WITH HOOK
+2C75; C; 2C76; # LATIN CAPITAL LETTER HALF H
+2C7E; C; 023F; # LATIN CAPITAL LETTER S WITH SWASH TAIL
+2C7F; C; 0240; # LATIN CAPITAL LETTER Z WITH SWASH TAIL
+2C80; C; 2C81; # COPTIC CAPITAL LETTER ALFA
+2C82; C; 2C83; # COPTIC CAPITAL LETTER VIDA
+2C84; C; 2C85; # COPTIC CAPITAL LETTER GAMMA
+2C86; C; 2C87; # COPTIC CAPITAL LETTER DALDA
+2C88; C; 2C89; # COPTIC CAPITAL LETTER EIE
+2C8A; C; 2C8B; # COPTIC CAPITAL LETTER SOU
+2C8C; C; 2C8D; # COPTIC CAPITAL LETTER ZATA
+2C8E; C; 2C8F; # COPTIC CAPITAL LETTER HATE
+2C90; C; 2C91; # COPTIC CAPITAL LETTER THETHE
+2C92; C; 2C93; # COPTIC CAPITAL LETTER IAUDA
+2C94; C; 2C95; # COPTIC CAPITAL LETTER KAPA
+2C96; C; 2C97; # COPTIC CAPITAL LETTER LAULA
+2C98; C; 2C99; # COPTIC CAPITAL LETTER MI
+2C9A; C; 2C9B; # COPTIC CAPITAL LETTER NI
+2C9C; C; 2C9D; # COPTIC CAPITAL LETTER KSI
+2C9E; C; 2C9F; # COPTIC CAPITAL LETTER O
+2CA0; C; 2CA1; # COPTIC CAPITAL LETTER PI
+2CA2; C; 2CA3; # COPTIC CAPITAL LETTER RO
+2CA4; C; 2CA5; # COPTIC CAPITAL LETTER SIMA
+2CA6; C; 2CA7; # COPTIC CAPITAL LETTER TAU
+2CA8; C; 2CA9; # COPTIC CAPITAL LETTER UA
+2CAA; C; 2CAB; # COPTIC CAPITAL LETTER FI
+2CAC; C; 2CAD; # COPTIC CAPITAL LETTER KHI
+2CAE; C; 2CAF; # COPTIC CAPITAL LETTER PSI
+2CB0; C; 2CB1; # COPTIC CAPITAL LETTER OOU
+2CB2; C; 2CB3; # COPTIC CAPITAL LETTER DIALECT-P ALEF
+2CB4; C; 2CB5; # COPTIC CAPITAL LETTER OLD COPTIC AIN
+2CB6; C; 2CB7; # COPTIC CAPITAL LETTER CRYPTOGRAMMIC EIE
+2CB8; C; 2CB9; # COPTIC CAPITAL LETTER DIALECT-P KAPA
+2CBA; C; 2CBB; # COPTIC CAPITAL LETTER DIALECT-P NI
+2CBC; C; 2CBD; # COPTIC CAPITAL LETTER CRYPTOGRAMMIC NI
+2CBE; C; 2CBF; # COPTIC CAPITAL LETTER OLD COPTIC OOU
+2CC0; C; 2CC1; # COPTIC CAPITAL LETTER SAMPI
+2CC2; C; 2CC3; # COPTIC CAPITAL LETTER CROSSED SHEI
+2CC4; C; 2CC5; # COPTIC CAPITAL LETTER OLD COPTIC SHEI
+2CC6; C; 2CC7; # COPTIC CAPITAL LETTER OLD COPTIC ESH
+2CC8; C; 2CC9; # COPTIC CAPITAL LETTER AKHMIMIC KHEI
+2CCA; C; 2CCB; # COPTIC CAPITAL LETTER DIALECT-P HORI
+2CCC; C; 2CCD; # COPTIC CAPITAL LETTER OLD COPTIC HORI
+2CCE; C; 2CCF; # COPTIC CAPITAL LETTER OLD COPTIC HA
+2CD0; C; 2CD1; # COPTIC CAPITAL LETTER L-SHAPED HA
+2CD2; C; 2CD3; # COPTIC CAPITAL LETTER OLD COPTIC HEI
+2CD4; C; 2CD5; # COPTIC CAPITAL LETTER OLD COPTIC HAT
+2CD6; C; 2CD7; # COPTIC CAPITAL LETTER OLD COPTIC GANGIA
+2CD8; C; 2CD9; # COPTIC CAPITAL LETTER OLD COPTIC DJA
+2CDA; C; 2CDB; # COPTIC CAPITAL LETTER OLD COPTIC SHIMA
+2CDC; C; 2CDD; # COPTIC CAPITAL LETTER OLD NUBIAN SHIMA
+2CDE; C; 2CDF; # COPTIC CAPITAL LETTER OLD NUBIAN NGI
+2CE0; C; 2CE1; # COPTIC CAPITAL LETTER OLD NUBIAN NYI
+2CE2; C; 2CE3; # COPTIC CAPITAL LETTER OLD NUBIAN WAU
+2CEB; C; 2CEC; # COPTIC CAPITAL LETTER CRYPTOGRAMMIC SHEI
+2CED; C; 2CEE; # COPTIC CAPITAL LETTER CRYPTOGRAMMIC GANGIA
+2CF2; C; 2CF3; # COPTIC CAPITAL LETTER BOHAIRIC KHEI
+A640; C; A641; # CYRILLIC CAPITAL LETTER ZEMLYA
+A642; C; A643; # CYRILLIC CAPITAL LETTER DZELO
+A644; C; A645; # CYRILLIC CAPITAL LETTER REVERSED DZE
+A646; C; A647; # CYRILLIC CAPITAL LETTER IOTA
+A648; C; A649; # CYRILLIC CAPITAL LETTER DJERV
+A64A; C; A64B; # CYRILLIC CAPITAL LETTER MONOGRAPH UK
+A64C; C; A64D; # CYRILLIC CAPITAL LETTER BROAD OMEGA
+A64E; C; A64F; # CYRILLIC CAPITAL LETTER NEUTRAL YER
+A650; C; A651; # CYRILLIC CAPITAL LETTER YERU WITH BACK YER
+A652; C; A653; # CYRILLIC CAPITAL LETTER IOTIFIED YAT
+A654; C; A655; # CYRILLIC CAPITAL LETTER REVERSED YU
+A656; C; A657; # CYRILLIC CAPITAL LETTER IOTIFIED A
+A658; C; A659; # CYRILLIC CAPITAL LETTER CLOSED LITTLE YUS
+A65A; C; A65B; # CYRILLIC CAPITAL LETTER BLENDED YUS
+A65C; C; A65D; # CYRILLIC CAPITAL LETTER IOTIFIED CLOSED LITTLE YUS
+A65E; C; A65F; # CYRILLIC CAPITAL LETTER YN
+A660; C; A661; # CYRILLIC CAPITAL LETTER REVERSED TSE
+A662; C; A663; # CYRILLIC CAPITAL LETTER SOFT DE
+A664; C; A665; # CYRILLIC CAPITAL LETTER SOFT EL
+A666; C; A667; # CYRILLIC CAPITAL LETTER SOFT EM
+A668; C; A669; # CYRILLIC CAPITAL LETTER MONOCULAR O
+A66A; C; A66B; # CYRILLIC CAPITAL LETTER BINOCULAR O
+A66C; C; A66D; # CYRILLIC CAPITAL LETTER DOUBLE MONOCULAR O
+A680; C; A681; # CYRILLIC CAPITAL LETTER DWE
+A682; C; A683; # CYRILLIC CAPITAL LETTER DZWE
+A684; C; A685; # CYRILLIC CAPITAL LETTER ZHWE
+A686; C; A687; # CYRILLIC CAPITAL LETTER CCHE
+A688; C; A689; # CYRILLIC CAPITAL LETTER DZZE
+A68A; C; A68B; # CYRILLIC CAPITAL LETTER TE WITH MIDDLE HOOK
+A68C; C; A68D; # CYRILLIC CAPITAL LETTER TWE
+A68E; C; A68F; # CYRILLIC CAPITAL LETTER TSWE
+A690; C; A691; # CYRILLIC CAPITAL LETTER TSSE
+A692; C; A693; # CYRILLIC CAPITAL LETTER TCHE
+A694; C; A695; # CYRILLIC CAPITAL LETTER HWE
+A696; C; A697; # CYRILLIC CAPITAL LETTER SHWE
+A722; C; A723; # LATIN CAPITAL LETTER EGYPTOLOGICAL ALEF
+A724; C; A725; # LATIN CAPITAL LETTER EGYPTOLOGICAL AIN
+A726; C; A727; # LATIN CAPITAL LETTER HENG
+A728; C; A729; # LATIN CAPITAL LETTER TZ
+A72A; C; A72B; # LATIN CAPITAL LETTER TRESILLO
+A72C; C; A72D; # LATIN CAPITAL LETTER CUATRILLO
+A72E; C; A72F; # LATIN CAPITAL LETTER CUATRILLO WITH COMMA
+A732; C; A733; # LATIN CAPITAL LETTER AA
+A734; C; A735; # LATIN CAPITAL LETTER AO
+A736; C; A737; # LATIN CAPITAL LETTER AU
+A738; C; A739; # LATIN CAPITAL LETTER AV
+A73A; C; A73B; # LATIN CAPITAL LETTER AV WITH HORIZONTAL BAR
+A73C; C; A73D; # LATIN CAPITAL LETTER AY
+A73E; C; A73F; # LATIN CAPITAL LETTER REVERSED C WITH DOT
+A740; C; A741; # LATIN CAPITAL LETTER K WITH STROKE
+A742; C; A743; # LATIN CAPITAL LETTER K WITH DIAGONAL STROKE
+A744; C; A745; # LATIN CAPITAL LETTER K WITH STROKE AND DIAGONAL STROKE
+A746; C; A747; # LATIN CAPITAL LETTER BROKEN L
+A748; C; A749; # LATIN CAPITAL LETTER L WITH HIGH STROKE
+A74A; C; A74B; # LATIN CAPITAL LETTER O WITH LONG STROKE OVERLAY
+A74C; C; A74D; # LATIN CAPITAL LETTER O WITH LOOP
+A74E; C; A74F; # LATIN CAPITAL LETTER OO
+A750; C; A751; # LATIN CAPITAL LETTER P WITH STROKE THROUGH DESCENDER
+A752; C; A753; # LATIN CAPITAL LETTER P WITH FLOURISH
+A754; C; A755; # LATIN CAPITAL LETTER P WITH SQUIRREL TAIL
+A756; C; A757; # LATIN CAPITAL LETTER Q WITH STROKE THROUGH DESCENDER
+A758; C; A759; # LATIN CAPITAL LETTER Q WITH DIAGONAL STROKE
+A75A; C; A75B; # LATIN CAPITAL LETTER R ROTUNDA
+A75C; C; A75D; # LATIN CAPITAL LETTER RUM ROTUNDA
+A75E; C; A75F; # LATIN CAPITAL LETTER V WITH DIAGONAL STROKE
+A760; C; A761; # LATIN CAPITAL LETTER VY
+A762; C; A763; # LATIN CAPITAL LETTER VISIGOTHIC Z
+A764; C; A765; # LATIN CAPITAL LETTER THORN WITH STROKE
+A766; C; A767; # LATIN CAPITAL LETTER THORN WITH STROKE THROUGH DESCENDER
+A768; C; A769; # LATIN CAPITAL LETTER VEND
+A76A; C; A76B; # LATIN CAPITAL LETTER ET
+A76C; C; A76D; # LATIN CAPITAL LETTER IS
+A76E; C; A76F; # LATIN CAPITAL LETTER CON
+A779; C; A77A; # LATIN CAPITAL LETTER INSULAR D
+A77B; C; A77C; # LATIN CAPITAL LETTER INSULAR F
+A77D; C; 1D79; # LATIN CAPITAL LETTER INSULAR G
+A77E; C; A77F; # LATIN CAPITAL LETTER TURNED INSULAR G
+A780; C; A781; # LATIN CAPITAL LETTER TURNED L
+A782; C; A783; # LATIN CAPITAL LETTER INSULAR R
+A784; C; A785; # LATIN CAPITAL LETTER INSULAR S
+A786; C; A787; # LATIN CAPITAL LETTER INSULAR T
+A78B; C; A78C; # LATIN CAPITAL LETTER SALTILLO
+A78D; C; 0265; # LATIN CAPITAL LETTER TURNED H
+A790; C; A791; # LATIN CAPITAL LETTER N WITH DESCENDER
+A792; C; A793; # LATIN CAPITAL LETTER C WITH BAR
+A7A0; C; A7A1; # LATIN CAPITAL LETTER G WITH OBLIQUE STROKE
+A7A2; C; A7A3; # LATIN CAPITAL LETTER K WITH OBLIQUE STROKE
+A7A4; C; A7A5; # LATIN CAPITAL LETTER N WITH OBLIQUE STROKE
+A7A6; C; A7A7; # LATIN CAPITAL LETTER R WITH OBLIQUE STROKE
+A7A8; C; A7A9; # LATIN CAPITAL LETTER S WITH OBLIQUE STROKE
+A7AA; C; 0266; # LATIN CAPITAL LETTER H WITH HOOK
+FB00; F; 0066 0066; # LATIN SMALL LIGATURE FF
+FB01; F; 0066 0069; # LATIN SMALL LIGATURE FI
+FB02; F; 0066 006C; # LATIN SMALL LIGATURE FL
+FB03; F; 0066 0066 0069; # LATIN SMALL LIGATURE FFI
+FB04; F; 0066 0066 006C; # LATIN SMALL LIGATURE FFL
+FB05; F; 0073 0074; # LATIN SMALL LIGATURE LONG S T
+FB06; F; 0073 0074; # LATIN SMALL LIGATURE ST
+FB13; F; 0574 0576; # ARMENIAN SMALL LIGATURE MEN NOW
+FB14; F; 0574 0565; # ARMENIAN SMALL LIGATURE MEN ECH
+FB15; F; 0574 056B; # ARMENIAN SMALL LIGATURE MEN INI
+FB16; F; 057E 0576; # ARMENIAN SMALL LIGATURE VEW NOW
+FB17; F; 0574 056D; # ARMENIAN SMALL LIGATURE MEN XEH
+FF21; C; FF41; # FULLWIDTH LATIN CAPITAL LETTER A
+FF22; C; FF42; # FULLWIDTH LATIN CAPITAL LETTER B
+FF23; C; FF43; # FULLWIDTH LATIN CAPITAL LETTER C
+FF24; C; FF44; # FULLWIDTH LATIN CAPITAL LETTER D
+FF25; C; FF45; # FULLWIDTH LATIN CAPITAL LETTER E
+FF26; C; FF46; # FULLWIDTH LATIN CAPITAL LETTER F
+FF27; C; FF47; # FULLWIDTH LATIN CAPITAL LETTER G
+FF28; C; FF48; # FULLWIDTH LATIN CAPITAL LETTER H
+FF29; C; FF49; # FULLWIDTH LATIN CAPITAL LETTER I
+FF2A; C; FF4A; # FULLWIDTH LATIN CAPITAL LETTER J
+FF2B; C; FF4B; # FULLWIDTH LATIN CAPITAL LETTER K
+FF2C; C; FF4C; # FULLWIDTH LATIN CAPITAL LETTER L
+FF2D; C; FF4D; # FULLWIDTH LATIN CAPITAL LETTER M
+FF2E; C; FF4E; # FULLWIDTH LATIN CAPITAL LETTER N
+FF2F; C; FF4F; # FULLWIDTH LATIN CAPITAL LETTER O
+FF30; C; FF50; # FULLWIDTH LATIN CAPITAL LETTER P
+FF31; C; FF51; # FULLWIDTH LATIN CAPITAL LETTER Q
+FF32; C; FF52; # FULLWIDTH LATIN CAPITAL LETTER R
+FF33; C; FF53; # FULLWIDTH LATIN CAPITAL LETTER S
+FF34; C; FF54; # FULLWIDTH LATIN CAPITAL LETTER T
+FF35; C; FF55; # FULLWIDTH LATIN CAPITAL LETTER U
+FF36; C; FF56; # FULLWIDTH LATIN CAPITAL LETTER V
+FF37; C; FF57; # FULLWIDTH LATIN CAPITAL LETTER W
+FF38; C; FF58; # FULLWIDTH LATIN CAPITAL LETTER X
+FF39; C; FF59; # FULLWIDTH LATIN CAPITAL LETTER Y
+FF3A; C; FF5A; # FULLWIDTH LATIN CAPITAL LETTER Z
+10400; C; 10428; # DESERET CAPITAL LETTER LONG I
+10401; C; 10429; # DESERET CAPITAL LETTER LONG E
+10402; C; 1042A; # DESERET CAPITAL LETTER LONG A
+10403; C; 1042B; # DESERET CAPITAL LETTER LONG AH
+10404; C; 1042C; # DESERET CAPITAL LETTER LONG O
+10405; C; 1042D; # DESERET CAPITAL LETTER LONG OO
+10406; C; 1042E; # DESERET CAPITAL LETTER SHORT I
+10407; C; 1042F; # DESERET CAPITAL LETTER SHORT E
+10408; C; 10430; # DESERET CAPITAL LETTER SHORT A
+10409; C; 10431; # DESERET CAPITAL LETTER SHORT AH
+1040A; C; 10432; # DESERET CAPITAL LETTER SHORT O
+1040B; C; 10433; # DESERET CAPITAL LETTER SHORT OO
+1040C; C; 10434; # DESERET CAPITAL LETTER AY
+1040D; C; 10435; # DESERET CAPITAL LETTER OW
+1040E; C; 10436; # DESERET CAPITAL LETTER WU
+1040F; C; 10437; # DESERET CAPITAL LETTER YEE
+10410; C; 10438; # DESERET CAPITAL LETTER H
+10411; C; 10439; # DESERET CAPITAL LETTER PEE
+10412; C; 1043A; # DESERET CAPITAL LETTER BEE
+10413; C; 1043B; # DESERET CAPITAL LETTER TEE
+10414; C; 1043C; # DESERET CAPITAL LETTER DEE
+10415; C; 1043D; # DESERET CAPITAL LETTER CHEE
+10416; C; 1043E; # DESERET CAPITAL LETTER JEE
+10417; C; 1043F; # DESERET CAPITAL LETTER KAY
+10418; C; 10440; # DESERET CAPITAL LETTER GAY
+10419; C; 10441; # DESERET CAPITAL LETTER EF
+1041A; C; 10442; # DESERET CAPITAL LETTER VEE
+1041B; C; 10443; # DESERET CAPITAL LETTER ETH
+1041C; C; 10444; # DESERET CAPITAL LETTER THEE
+1041D; C; 10445; # DESERET CAPITAL LETTER ES
+1041E; C; 10446; # DESERET CAPITAL LETTER ZEE
+1041F; C; 10447; # DESERET CAPITAL LETTER ESH
+10420; C; 10448; # DESERET CAPITAL LETTER ZHEE
+10421; C; 10449; # DESERET CAPITAL LETTER ER
+10422; C; 1044A; # DESERET CAPITAL LETTER EL
+10423; C; 1044B; # DESERET CAPITAL LETTER EM
+10424; C; 1044C; # DESERET CAPITAL LETTER EN
+10425; C; 1044D; # DESERET CAPITAL LETTER ENG
+10426; C; 1044E; # DESERET CAPITAL LETTER OI
+10427; C; 1044F; # DESERET CAPITAL LETTER EW
diff --git a/ext/fts3/unicode/UnicodeData.txt b/ext/fts3/unicode/UnicodeData.txt
new file mode 100644
index 0000000000000000000000000000000000000000..9f204050c6bb2e587cb1c3154372b8131f9e2f28
--- /dev/null
+++ b/ext/fts3/unicode/UnicodeData.txt
@@ -0,0 +1,24428 @@
+0000;<control>;Cc;0;BN;;;;;N;NULL;;;;
+0001;<control>;Cc;0;BN;;;;;N;START OF HEADING;;;;
+0002;<control>;Cc;0;BN;;;;;N;START OF TEXT;;;;
+0003;<control>;Cc;0;BN;;;;;N;END OF TEXT;;;;
+0004;<control>;Cc;0;BN;;;;;N;END OF TRANSMISSION;;;;
+0005;<control>;Cc;0;BN;;;;;N;ENQUIRY;;;;
+0006;<control>;Cc;0;BN;;;;;N;ACKNOWLEDGE;;;;
+0007;<control>;Cc;0;BN;;;;;N;BELL;;;;
+0008;<control>;Cc;0;BN;;;;;N;BACKSPACE;;;;
+0009;<control>;Cc;0;S;;;;;N;CHARACTER TABULATION;;;;
+000A;<control>;Cc;0;B;;;;;N;LINE FEED (LF);;;;
+000B;<control>;Cc;0;S;;;;;N;LINE TABULATION;;;;
+000C;<control>;Cc;0;WS;;;;;N;FORM FEED (FF);;;;
+000D;<control>;Cc;0;B;;;;;N;CARRIAGE RETURN (CR);;;;
+000E;<control>;Cc;0;BN;;;;;N;SHIFT OUT;;;;
+000F;<control>;Cc;0;BN;;;;;N;SHIFT IN;;;;
+0010;<control>;Cc;0;BN;;;;;N;DATA LINK ESCAPE;;;;
+0011;<control>;Cc;0;BN;;;;;N;DEVICE CONTROL ONE;;;;
+0012;<control>;Cc;0;BN;;;;;N;DEVICE CONTROL TWO;;;;
+0013;<control>;Cc;0;BN;;;;;N;DEVICE CONTROL THREE;;;;
+0014;<control>;Cc;0;BN;;;;;N;DEVICE CONTROL FOUR;;;;
+0015;<control>;Cc;0;BN;;;;;N;NEGATIVE ACKNOWLEDGE;;;;
+0016;<control>;Cc;0;BN;;;;;N;SYNCHRONOUS IDLE;;;;
+0017;<control>;Cc;0;BN;;;;;N;END OF TRANSMISSION BLOCK;;;;
+0018;<control>;Cc;0;BN;;;;;N;CANCEL;;;;
+0019;<control>;Cc;0;BN;;;;;N;END OF MEDIUM;;;;
+001A;<control>;Cc;0;BN;;;;;N;SUBSTITUTE;;;;
+001B;<control>;Cc;0;BN;;;;;N;ESCAPE;;;;
+001C;<control>;Cc;0;B;;;;;N;INFORMATION SEPARATOR FOUR;;;;
+001D;<control>;Cc;0;B;;;;;N;INFORMATION SEPARATOR THREE;;;;
+001E;<control>;Cc;0;B;;;;;N;INFORMATION SEPARATOR TWO;;;;
+001F;<control>;Cc;0;S;;;;;N;INFORMATION SEPARATOR ONE;;;;
+0020;SPACE;Zs;0;WS;;;;;N;;;;;
+0021;EXCLAMATION MARK;Po;0;ON;;;;;N;;;;;
+0022;QUOTATION MARK;Po;0;ON;;;;;N;;;;;
+0023;NUMBER SIGN;Po;0;ET;;;;;N;;;;;
+0024;DOLLAR SIGN;Sc;0;ET;;;;;N;;;;;
+0025;PERCENT SIGN;Po;0;ET;;;;;N;;;;;
+0026;AMPERSAND;Po;0;ON;;;;;N;;;;;
+0027;APOSTROPHE;Po;0;ON;;;;;N;APOSTROPHE-QUOTE;;;;
+0028;LEFT PARENTHESIS;Ps;0;ON;;;;;Y;OPENING PARENTHESIS;;;;
+0029;RIGHT PARENTHESIS;Pe;0;ON;;;;;Y;CLOSING PARENTHESIS;;;;
+002A;ASTERISK;Po;0;ON;;;;;N;;;;;
+002B;PLUS SIGN;Sm;0;ES;;;;;N;;;;;
+002C;COMMA;Po;0;CS;;;;;N;;;;;
+002D;HYPHEN-MINUS;Pd;0;ES;;;;;N;;;;;
+002E;FULL STOP;Po;0;CS;;;;;N;PERIOD;;;;
+002F;SOLIDUS;Po;0;CS;;;;;N;SLASH;;;;
+0030;DIGIT ZERO;Nd;0;EN;;0;0;0;N;;;;;
+0031;DIGIT ONE;Nd;0;EN;;1;1;1;N;;;;;
+0032;DIGIT TWO;Nd;0;EN;;2;2;2;N;;;;;
+0033;DIGIT THREE;Nd;0;EN;;3;3;3;N;;;;;
+0034;DIGIT FOUR;Nd;0;EN;;4;4;4;N;;;;;
+0035;DIGIT FIVE;Nd;0;EN;;5;5;5;N;;;;;
+0036;DIGIT SIX;Nd;0;EN;;6;6;6;N;;;;;
+0037;DIGIT SEVEN;Nd;0;EN;;7;7;7;N;;;;;
+0038;DIGIT EIGHT;Nd;0;EN;;8;8;8;N;;;;;
+0039;DIGIT NINE;Nd;0;EN;;9;9;9;N;;;;;
+003A;COLON;Po;0;CS;;;;;N;;;;;
+003B;SEMICOLON;Po;0;ON;;;;;N;;;;;
+003C;LESS-THAN SIGN;Sm;0;ON;;;;;Y;;;;;
+003D;EQUALS SIGN;Sm;0;ON;;;;;N;;;;;
+003E;GREATER-THAN SIGN;Sm;0;ON;;;;;Y;;;;;
+003F;QUESTION MARK;Po;0;ON;;;;;N;;;;;
+0040;COMMERCIAL AT;Po;0;ON;;;;;N;;;;;
+0041;LATIN CAPITAL LETTER A;Lu;0;L;;;;;N;;;;0061;
+0042;LATIN CAPITAL LETTER B;Lu;0;L;;;;;N;;;;0062;
+0043;LATIN CAPITAL LETTER C;Lu;0;L;;;;;N;;;;0063;
+0044;LATIN CAPITAL LETTER D;Lu;0;L;;;;;N;;;;0064;
+0045;LATIN CAPITAL LETTER E;Lu;0;L;;;;;N;;;;0065;
+0046;LATIN CAPITAL LETTER F;Lu;0;L;;;;;N;;;;0066;
+0047;LATIN CAPITAL LETTER G;Lu;0;L;;;;;N;;;;0067;
+0048;LATIN CAPITAL LETTER H;Lu;0;L;;;;;N;;;;0068;
+0049;LATIN CAPITAL LETTER I;Lu;0;L;;;;;N;;;;0069;
+004A;LATIN CAPITAL LETTER J;Lu;0;L;;;;;N;;;;006A;
+004B;LATIN CAPITAL LETTER K;Lu;0;L;;;;;N;;;;006B;
+004C;LATIN CAPITAL LETTER L;Lu;0;L;;;;;N;;;;006C;
+004D;LATIN CAPITAL LETTER M;Lu;0;L;;;;;N;;;;006D;
+004E;LATIN CAPITAL LETTER N;Lu;0;L;;;;;N;;;;006E;
+004F;LATIN CAPITAL LETTER O;Lu;0;L;;;;;N;;;;006F;
+0050;LATIN CAPITAL LETTER P;Lu;0;L;;;;;N;;;;0070;
+0051;LATIN CAPITAL LETTER Q;Lu;0;L;;;;;N;;;;0071;
+0052;LATIN CAPITAL LETTER R;Lu;0;L;;;;;N;;;;0072;
+0053;LATIN CAPITAL LETTER S;Lu;0;L;;;;;N;;;;0073;
+0054;LATIN CAPITAL LETTER T;Lu;0;L;;;;;N;;;;0074;
+0055;LATIN CAPITAL LETTER U;Lu;0;L;;;;;N;;;;0075;
+0056;LATIN CAPITAL LETTER V;Lu;0;L;;;;;N;;;;0076;
+0057;LATIN CAPITAL LETTER W;Lu;0;L;;;;;N;;;;0077;
+0058;LATIN CAPITAL LETTER X;Lu;0;L;;;;;N;;;;0078;
+0059;LATIN CAPITAL LETTER Y;Lu;0;L;;;;;N;;;;0079;
+005A;LATIN CAPITAL LETTER Z;Lu;0;L;;;;;N;;;;007A;
+005B;LEFT SQUARE BRACKET;Ps;0;ON;;;;;Y;OPENING SQUARE BRACKET;;;;
+005C;REVERSE SOLIDUS;Po;0;ON;;;;;N;BACKSLASH;;;;
+005D;RIGHT SQUARE BRACKET;Pe;0;ON;;;;;Y;CLOSING SQUARE BRACKET;;;;
+005E;CIRCUMFLEX ACCENT;Sk;0;ON;;;;;N;SPACING CIRCUMFLEX;;;;
+005F;LOW LINE;Pc;0;ON;;;;;N;SPACING UNDERSCORE;;;;
+0060;GRAVE ACCENT;Sk;0;ON;;;;;N;SPACING GRAVE;;;;
+0061;LATIN SMALL LETTER A;Ll;0;L;;;;;N;;;0041;;0041
+0062;LATIN SMALL LETTER B;Ll;0;L;;;;;N;;;0042;;0042
+0063;LATIN SMALL LETTER C;Ll;0;L;;;;;N;;;0043;;0043
+0064;LATIN SMALL LETTER D;Ll;0;L;;;;;N;;;0044;;0044
+0065;LATIN SMALL LETTER E;Ll;0;L;;;;;N;;;0045;;0045
+0066;LATIN SMALL LETTER F;Ll;0;L;;;;;N;;;0046;;0046
+0067;LATIN SMALL LETTER G;Ll;0;L;;;;;N;;;0047;;0047
+0068;LATIN SMALL LETTER H;Ll;0;L;;;;;N;;;0048;;0048
+0069;LATIN SMALL LETTER I;Ll;0;L;;;;;N;;;0049;;0049
+006A;LATIN SMALL LETTER J;Ll;0;L;;;;;N;;;004A;;004A
+006B;LATIN SMALL LETTER K;Ll;0;L;;;;;N;;;004B;;004B
+006C;LATIN SMALL LETTER L;Ll;0;L;;;;;N;;;004C;;004C
+006D;LATIN SMALL LETTER M;Ll;0;L;;;;;N;;;004D;;004D
+006E;LATIN SMALL LETTER N;Ll;0;L;;;;;N;;;004E;;004E
+006F;LATIN SMALL LETTER O;Ll;0;L;;;;;N;;;004F;;004F
+0070;LATIN SMALL LETTER P;Ll;0;L;;;;;N;;;0050;;0050
+0071;LATIN SMALL LETTER Q;Ll;0;L;;;;;N;;;0051;;0051
+0072;LATIN SMALL LETTER R;Ll;0;L;;;;;N;;;0052;;0052
+0073;LATIN SMALL LETTER S;Ll;0;L;;;;;N;;;0053;;0053
+0074;LATIN SMALL LETTER T;Ll;0;L;;;;;N;;;0054;;0054
+0075;LATIN SMALL LETTER U;Ll;0;L;;;;;N;;;0055;;0055
+0076;LATIN SMALL LETTER V;Ll;0;L;;;;;N;;;0056;;0056
+0077;LATIN SMALL LETTER W;Ll;0;L;;;;;N;;;0057;;0057
+0078;LATIN SMALL LETTER X;Ll;0;L;;;;;N;;;0058;;0058
+0079;LATIN SMALL LETTER Y;Ll;0;L;;;;;N;;;0059;;0059
+007A;LATIN SMALL LETTER Z;Ll;0;L;;;;;N;;;005A;;005A
+007B;LEFT CURLY BRACKET;Ps;0;ON;;;;;Y;OPENING CURLY BRACKET;;;;
+007C;VERTICAL LINE;Sm;0;ON;;;;;N;VERTICAL BAR;;;;
+007D;RIGHT CURLY BRACKET;Pe;0;ON;;;;;Y;CLOSING CURLY BRACKET;;;;
+007E;TILDE;Sm;0;ON;;;;;N;;;;;
+007F;<control>;Cc;0;BN;;;;;N;DELETE;;;;
+0080;<control>;Cc;0;BN;;;;;N;;;;;
+0081;<control>;Cc;0;BN;;;;;N;;;;;
+0082;<control>;Cc;0;BN;;;;;N;BREAK PERMITTED HERE;;;;
+0083;<control>;Cc;0;BN;;;;;N;NO BREAK HERE;;;;
+0084;<control>;Cc;0;BN;;;;;N;;;;;
+0085;<control>;Cc;0;B;;;;;N;NEXT LINE (NEL);;;;
+0086;<control>;Cc;0;BN;;;;;N;START OF SELECTED AREA;;;;
+0087;<control>;Cc;0;BN;;;;;N;END OF SELECTED AREA;;;;
+0088;<control>;Cc;0;BN;;;;;N;CHARACTER TABULATION SET;;;;
+0089;<control>;Cc;0;BN;;;;;N;CHARACTER TABULATION WITH JUSTIFICATION;;;;
+008A;<control>;Cc;0;BN;;;;;N;LINE TABULATION SET;;;;
+008B;<control>;Cc;0;BN;;;;;N;PARTIAL LINE FORWARD;;;;
+008C;<control>;Cc;0;BN;;;;;N;PARTIAL LINE BACKWARD;;;;
+008D;<control>;Cc;0;BN;;;;;N;REVERSE LINE FEED;;;;
+008E;<control>;Cc;0;BN;;;;;N;SINGLE SHIFT TWO;;;;
+008F;<control>;Cc;0;BN;;;;;N;SINGLE SHIFT THREE;;;;
+0090;<control>;Cc;0;BN;;;;;N;DEVICE CONTROL STRING;;;;
+0091;<control>;Cc;0;BN;;;;;N;PRIVATE USE ONE;;;;
+0092;<control>;Cc;0;BN;;;;;N;PRIVATE USE TWO;;;;
+0093;<control>;Cc;0;BN;;;;;N;SET TRANSMIT STATE;;;;
+0094;<control>;Cc;0;BN;;;;;N;CANCEL CHARACTER;;;;
+0095;<control>;Cc;0;BN;;;;;N;MESSAGE WAITING;;;;
+0096;<control>;Cc;0;BN;;;;;N;START OF GUARDED AREA;;;;
+0097;<control>;Cc;0;BN;;;;;N;END OF GUARDED AREA;;;;
+0098;<control>;Cc;0;BN;;;;;N;START OF STRING;;;;
+0099;<control>;Cc;0;BN;;;;;N;;;;;
+009A;<control>;Cc;0;BN;;;;;N;SINGLE CHARACTER INTRODUCER;;;;
+009B;<control>;Cc;0;BN;;;;;N;CONTROL SEQUENCE INTRODUCER;;;;
+009C;<control>;Cc;0;BN;;;;;N;STRING TERMINATOR;;;;
+009D;<control>;Cc;0;BN;;;;;N;OPERATING SYSTEM COMMAND;;;;
+009E;<control>;Cc;0;BN;;;;;N;PRIVACY MESSAGE;;;;
+009F;<control>;Cc;0;BN;;;;;N;APPLICATION PROGRAM COMMAND;;;;
+00A0;NO-BREAK SPACE;Zs;0;CS;<noBreak> 0020;;;;N;NON-BREAKING SPACE;;;;
+00A1;INVERTED EXCLAMATION MARK;Po;0;ON;;;;;N;;;;;
+00A2;CENT SIGN;Sc;0;ET;;;;;N;;;;;
+00A3;POUND SIGN;Sc;0;ET;;;;;N;;;;;
+00A4;CURRENCY SIGN;Sc;0;ET;;;;;N;;;;;
+00A5;YEN SIGN;Sc;0;ET;;;;;N;;;;;
+00A6;BROKEN BAR;So;0;ON;;;;;N;BROKEN VERTICAL BAR;;;;
+00A7;SECTION SIGN;Po;0;ON;;;;;N;;;;;
+00A8;DIAERESIS;Sk;0;ON;<compat> 0020 0308;;;;N;SPACING DIAERESIS;;;;
+00A9;COPYRIGHT SIGN;So;0;ON;;;;;N;;;;;
+00AA;FEMININE ORDINAL INDICATOR;Lo;0;L;<super> 0061;;;;N;;;;;
+00AB;LEFT-POINTING DOUBLE ANGLE QUOTATION MARK;Pi;0;ON;;;;;Y;LEFT POINTING GUILLEMET;;;;
+00AC;NOT SIGN;Sm;0;ON;;;;;N;;;;;
+00AD;SOFT HYPHEN;Cf;0;BN;;;;;N;;;;;
+00AE;REGISTERED SIGN;So;0;ON;;;;;N;REGISTERED TRADE MARK SIGN;;;;
+00AF;MACRON;Sk;0;ON;<compat> 0020 0304;;;;N;SPACING MACRON;;;;
+00B0;DEGREE SIGN;So;0;ET;;;;;N;;;;;
+00B1;PLUS-MINUS SIGN;Sm;0;ET;;;;;N;PLUS-OR-MINUS SIGN;;;;
+00B2;SUPERSCRIPT TWO;No;0;EN;<super> 0032;;2;2;N;SUPERSCRIPT DIGIT TWO;;;;
+00B3;SUPERSCRIPT THREE;No;0;EN;<super> 0033;;3;3;N;SUPERSCRIPT DIGIT THREE;;;;
+00B4;ACUTE ACCENT;Sk;0;ON;<compat> 0020 0301;;;;N;SPACING ACUTE;;;;
+00B5;MICRO SIGN;Ll;0;L;<compat> 03BC;;;;N;;;039C;;039C
+00B6;PILCROW SIGN;Po;0;ON;;;;;N;PARAGRAPH SIGN;;;;
+00B7;MIDDLE DOT;Po;0;ON;;;;;N;;;;;
+00B8;CEDILLA;Sk;0;ON;<compat> 0020 0327;;;;N;SPACING CEDILLA;;;;
+00B9;SUPERSCRIPT ONE;No;0;EN;<super> 0031;;1;1;N;SUPERSCRIPT DIGIT ONE;;;;
+00BA;MASCULINE ORDINAL INDICATOR;Lo;0;L;<super> 006F;;;;N;;;;;
+00BB;RIGHT-POINTING DOUBLE ANGLE QUOTATION MARK;Pf;0;ON;;;;;Y;RIGHT POINTING GUILLEMET;;;;
+00BC;VULGAR FRACTION ONE QUARTER;No;0;ON;<fraction> 0031 2044 0034;;;1/4;N;FRACTION ONE QUARTER;;;;
+00BD;VULGAR FRACTION ONE HALF;No;0;ON;<fraction> 0031 2044 0032;;;1/2;N;FRACTION ONE HALF;;;;
+00BE;VULGAR FRACTION THREE QUARTERS;No;0;ON;<fraction> 0033 2044 0034;;;3/4;N;FRACTION THREE QUARTERS;;;;
+00BF;INVERTED QUESTION MARK;Po;0;ON;;;;;N;;;;;
+00C0;LATIN CAPITAL LETTER A WITH GRAVE;Lu;0;L;0041 0300;;;;N;LATIN CAPITAL LETTER A GRAVE;;;00E0;
+00C1;LATIN CAPITAL LETTER A WITH ACUTE;Lu;0;L;0041 0301;;;;N;LATIN CAPITAL LETTER A ACUTE;;;00E1;
+00C2;LATIN CAPITAL LETTER A WITH CIRCUMFLEX;Lu;0;L;0041 0302;;;;N;LATIN CAPITAL LETTER A CIRCUMFLEX;;;00E2;
+00C3;LATIN CAPITAL LETTER A WITH TILDE;Lu;0;L;0041 0303;;;;N;LATIN CAPITAL LETTER A TILDE;;;00E3;
+00C4;LATIN CAPITAL LETTER A WITH DIAERESIS;Lu;0;L;0041 0308;;;;N;LATIN CAPITAL LETTER A DIAERESIS;;;00E4;
+00C5;LATIN CAPITAL LETTER A WITH RING ABOVE;Lu;0;L;0041 030A;;;;N;LATIN CAPITAL LETTER A RING;;;00E5;
+00C6;LATIN CAPITAL LETTER AE;Lu;0;L;;;;;N;LATIN CAPITAL LETTER A E;;;00E6;
+00C7;LATIN CAPITAL LETTER C WITH CEDILLA;Lu;0;L;0043 0327;;;;N;LATIN CAPITAL LETTER C CEDILLA;;;00E7;
+00C8;LATIN CAPITAL LETTER E WITH GRAVE;Lu;0;L;0045 0300;;;;N;LATIN CAPITAL LETTER E GRAVE;;;00E8;
+00C9;LATIN CAPITAL LETTER E WITH ACUTE;Lu;0;L;0045 0301;;;;N;LATIN CAPITAL LETTER E ACUTE;;;00E9;
+00CA;LATIN CAPITAL LETTER E WITH CIRCUMFLEX;Lu;0;L;0045 0302;;;;N;LATIN CAPITAL LETTER E CIRCUMFLEX;;;00EA;
+00CB;LATIN CAPITAL LETTER E WITH DIAERESIS;Lu;0;L;0045 0308;;;;N;LATIN CAPITAL LETTER E DIAERESIS;;;00EB;
+00CC;LATIN CAPITAL LETTER I WITH GRAVE;Lu;0;L;0049 0300;;;;N;LATIN CAPITAL LETTER I GRAVE;;;00EC;
+00CD;LATIN CAPITAL LETTER I WITH ACUTE;Lu;0;L;0049 0301;;;;N;LATIN CAPITAL LETTER I ACUTE;;;00ED;
+00CE;LATIN CAPITAL LETTER I WITH CIRCUMFLEX;Lu;0;L;0049 0302;;;;N;LATIN CAPITAL LETTER I CIRCUMFLEX;;;00EE;
+00CF;LATIN CAPITAL LETTER I WITH DIAERESIS;Lu;0;L;0049 0308;;;;N;LATIN CAPITAL LETTER I DIAERESIS;;;00EF;
+00D0;LATIN CAPITAL LETTER ETH;Lu;0;L;;;;;N;;;;00F0;
+00D1;LATIN CAPITAL LETTER N WITH TILDE;Lu;0;L;004E 0303;;;;N;LATIN CAPITAL LETTER N TILDE;;;00F1;
+00D2;LATIN CAPITAL LETTER O WITH GRAVE;Lu;0;L;004F 0300;;;;N;LATIN CAPITAL LETTER O GRAVE;;;00F2;
+00D3;LATIN CAPITAL LETTER O WITH ACUTE;Lu;0;L;004F 0301;;;;N;LATIN CAPITAL LETTER O ACUTE;;;00F3;
+00D4;LATIN CAPITAL LETTER O WITH CIRCUMFLEX;Lu;0;L;004F 0302;;;;N;LATIN CAPITAL LETTER O CIRCUMFLEX;;;00F4;
+00D5;LATIN CAPITAL LETTER O WITH TILDE;Lu;0;L;004F 0303;;;;N;LATIN CAPITAL LETTER O TILDE;;;00F5;
+00D6;LATIN CAPITAL LETTER O WITH DIAERESIS;Lu;0;L;004F 0308;;;;N;LATIN CAPITAL LETTER O DIAERESIS;;;00F6;
+00D7;MULTIPLICATION SIGN;Sm;0;ON;;;;;N;;;;;
+00D8;LATIN CAPITAL LETTER O WITH STROKE;Lu;0;L;;;;;N;LATIN CAPITAL LETTER O SLASH;;;00F8;
+00D9;LATIN CAPITAL LETTER U WITH GRAVE;Lu;0;L;0055 0300;;;;N;LATIN CAPITAL LETTER U GRAVE;;;00F9;
+00DA;LATIN CAPITAL LETTER U WITH ACUTE;Lu;0;L;0055 0301;;;;N;LATIN CAPITAL LETTER U ACUTE;;;00FA;
+00DB;LATIN CAPITAL LETTER U WITH CIRCUMFLEX;Lu;0;L;0055 0302;;;;N;LATIN CAPITAL LETTER U CIRCUMFLEX;;;00FB;
+00DC;LATIN CAPITAL LETTER U WITH DIAERESIS;Lu;0;L;0055 0308;;;;N;LATIN CAPITAL LETTER U DIAERESIS;;;00FC;
+00DD;LATIN CAPITAL LETTER Y WITH ACUTE;Lu;0;L;0059 0301;;;;N;LATIN CAPITAL LETTER Y ACUTE;;;00FD;
+00DE;LATIN CAPITAL LETTER THORN;Lu;0;L;;;;;N;;;;00FE;
+00DF;LATIN SMALL LETTER SHARP S;Ll;0;L;;;;;N;;;;;
+00E0;LATIN SMALL LETTER A WITH GRAVE;Ll;0;L;0061 0300;;;;N;LATIN SMALL LETTER A GRAVE;;00C0;;00C0
+00E1;LATIN SMALL LETTER A WITH ACUTE;Ll;0;L;0061 0301;;;;N;LATIN SMALL LETTER A ACUTE;;00C1;;00C1
+00E2;LATIN SMALL LETTER A WITH CIRCUMFLEX;Ll;0;L;0061 0302;;;;N;LATIN SMALL LETTER A CIRCUMFLEX;;00C2;;00C2
+00E3;LATIN SMALL LETTER A WITH TILDE;Ll;0;L;0061 0303;;;;N;LATIN SMALL LETTER A TILDE;;00C3;;00C3
+00E4;LATIN SMALL LETTER A WITH DIAERESIS;Ll;0;L;0061 0308;;;;N;LATIN SMALL LETTER A DIAERESIS;;00C4;;00C4
+00E5;LATIN SMALL LETTER A WITH RING ABOVE;Ll;0;L;0061 030A;;;;N;LATIN SMALL LETTER A RING;;00C5;;00C5
+00E6;LATIN SMALL LETTER AE;Ll;0;L;;;;;N;LATIN SMALL LETTER A E;;00C6;;00C6
+00E7;LATIN SMALL LETTER C WITH CEDILLA;Ll;0;L;0063 0327;;;;N;LATIN SMALL LETTER C CEDILLA;;00C7;;00C7
+00E8;LATIN SMALL LETTER E WITH GRAVE;Ll;0;L;0065 0300;;;;N;LATIN SMALL LETTER E GRAVE;;00C8;;00C8
+00E9;LATIN SMALL LETTER E WITH ACUTE;Ll;0;L;0065 0301;;;;N;LATIN SMALL LETTER E ACUTE;;00C9;;00C9
+00EA;LATIN SMALL LETTER E WITH CIRCUMFLEX;Ll;0;L;0065 0302;;;;N;LATIN SMALL LETTER E CIRCUMFLEX;;00CA;;00CA
+00EB;LATIN SMALL LETTER E WITH DIAERESIS;Ll;0;L;0065 0308;;;;N;LATIN SMALL LETTER E DIAERESIS;;00CB;;00CB
+00EC;LATIN SMALL LETTER I WITH GRAVE;Ll;0;L;0069 0300;;;;N;LATIN SMALL LETTER I GRAVE;;00CC;;00CC
+00ED;LATIN SMALL LETTER I WITH ACUTE;Ll;0;L;0069 0301;;;;N;LATIN SMALL LETTER I ACUTE;;00CD;;00CD
+00EE;LATIN SMALL LETTER I WITH CIRCUMFLEX;Ll;0;L;0069 0302;;;;N;LATIN SMALL LETTER I CIRCUMFLEX;;00CE;;00CE
+00EF;LATIN SMALL LETTER I WITH DIAERESIS;Ll;0;L;0069 0308;;;;N;LATIN SMALL LETTER I DIAERESIS;;00CF;;00CF
+00F0;LATIN SMALL LETTER ETH;Ll;0;L;;;;;N;;;00D0;;00D0
+00F1;LATIN SMALL LETTER N WITH TILDE;Ll;0;L;006E 0303;;;;N;LATIN SMALL LETTER N TILDE;;00D1;;00D1
+00F2;LATIN SMALL LETTER O WITH GRAVE;Ll;0;L;006F 0300;;;;N;LATIN SMALL LETTER O GRAVE;;00D2;;00D2
+00F3;LATIN SMALL LETTER O WITH ACUTE;Ll;0;L;006F 0301;;;;N;LATIN SMALL LETTER O ACUTE;;00D3;;00D3
+00F4;LATIN SMALL LETTER O WITH CIRCUMFLEX;Ll;0;L;006F 0302;;;;N;LATIN SMALL LETTER O CIRCUMFLEX;;00D4;;00D4
+00F5;LATIN SMALL LETTER O WITH TILDE;Ll;0;L;006F 0303;;;;N;LATIN SMALL LETTER O TILDE;;00D5;;00D5
+00F6;LATIN SMALL LETTER O WITH DIAERESIS;Ll;0;L;006F 0308;;;;N;LATIN SMALL LETTER O DIAERESIS;;00D6;;00D6
+00F7;DIVISION SIGN;Sm;0;ON;;;;;N;;;;;
+00F8;LATIN SMALL LETTER O WITH STROKE;Ll;0;L;;;;;N;LATIN SMALL LETTER O SLASH;;00D8;;00D8
+00F9;LATIN SMALL LETTER U WITH GRAVE;Ll;0;L;0075 0300;;;;N;LATIN SMALL LETTER U GRAVE;;00D9;;00D9
+00FA;LATIN SMALL LETTER U WITH ACUTE;Ll;0;L;0075 0301;;;;N;LATIN SMALL LETTER U ACUTE;;00DA;;00DA
+00FB;LATIN SMALL LETTER U WITH CIRCUMFLEX;Ll;0;L;0075 0302;;;;N;LATIN SMALL LETTER U CIRCUMFLEX;;00DB;;00DB
+00FC;LATIN SMALL LETTER U WITH DIAERESIS;Ll;0;L;0075 0308;;;;N;LATIN SMALL LETTER U DIAERESIS;;00DC;;00DC
+00FD;LATIN SMALL LETTER Y WITH ACUTE;Ll;0;L;0079 0301;;;;N;LATIN SMALL LETTER Y ACUTE;;00DD;;00DD
+00FE;LATIN SMALL LETTER THORN;Ll;0;L;;;;;N;;;00DE;;00DE
+00FF;LATIN SMALL LETTER Y WITH DIAERESIS;Ll;0;L;0079 0308;;;;N;LATIN SMALL LETTER Y DIAERESIS;;0178;;0178
+0100;LATIN CAPITAL LETTER A WITH MACRON;Lu;0;L;0041 0304;;;;N;LATIN CAPITAL LETTER A MACRON;;;0101;
+0101;LATIN SMALL LETTER A WITH MACRON;Ll;0;L;0061 0304;;;;N;LATIN SMALL LETTER A MACRON;;0100;;0100
+0102;LATIN CAPITAL LETTER A WITH BREVE;Lu;0;L;0041 0306;;;;N;LATIN CAPITAL LETTER A BREVE;;;0103;
+0103;LATIN SMALL LETTER A WITH BREVE;Ll;0;L;0061 0306;;;;N;LATIN SMALL LETTER A BREVE;;0102;;0102
+0104;LATIN CAPITAL LETTER A WITH OGONEK;Lu;0;L;0041 0328;;;;N;LATIN CAPITAL LETTER A OGONEK;;;0105;
+0105;LATIN SMALL LETTER A WITH OGONEK;Ll;0;L;0061 0328;;;;N;LATIN SMALL LETTER A OGONEK;;0104;;0104
+0106;LATIN CAPITAL LETTER C WITH ACUTE;Lu;0;L;0043 0301;;;;N;LATIN CAPITAL LETTER C ACUTE;;;0107;
+0107;LATIN SMALL LETTER C WITH ACUTE;Ll;0;L;0063 0301;;;;N;LATIN SMALL LETTER C ACUTE;;0106;;0106
+0108;LATIN CAPITAL LETTER C WITH CIRCUMFLEX;Lu;0;L;0043 0302;;;;N;LATIN CAPITAL LETTER C CIRCUMFLEX;;;0109;
+0109;LATIN SMALL LETTER C WITH CIRCUMFLEX;Ll;0;L;0063 0302;;;;N;LATIN SMALL LETTER C CIRCUMFLEX;;0108;;0108
+010A;LATIN CAPITAL LETTER C WITH DOT ABOVE;Lu;0;L;0043 0307;;;;N;LATIN CAPITAL LETTER C DOT;;;010B;
+010B;LATIN SMALL LETTER C WITH DOT ABOVE;Ll;0;L;0063 0307;;;;N;LATIN SMALL LETTER C DOT;;010A;;010A
+010C;LATIN CAPITAL LETTER C WITH CARON;Lu;0;L;0043 030C;;;;N;LATIN CAPITAL LETTER C HACEK;;;010D;
+010D;LATIN SMALL LETTER C WITH CARON;Ll;0;L;0063 030C;;;;N;LATIN SMALL LETTER C HACEK;;010C;;010C
+010E;LATIN CAPITAL LETTER D WITH CARON;Lu;0;L;0044 030C;;;;N;LATIN CAPITAL LETTER D HACEK;;;010F;
+010F;LATIN SMALL LETTER D WITH CARON;Ll;0;L;0064 030C;;;;N;LATIN SMALL LETTER D HACEK;;010E;;010E
+0110;LATIN CAPITAL LETTER D WITH STROKE;Lu;0;L;;;;;N;LATIN CAPITAL LETTER D BAR;;;0111;
+0111;LATIN SMALL LETTER D WITH STROKE;Ll;0;L;;;;;N;LATIN SMALL LETTER D BAR;;0110;;0110
+0112;LATIN CAPITAL LETTER E WITH MACRON;Lu;0;L;0045 0304;;;;N;LATIN CAPITAL LETTER E MACRON;;;0113;
+0113;LATIN SMALL LETTER E WITH MACRON;Ll;0;L;0065 0304;;;;N;LATIN SMALL LETTER E MACRON;;0112;;0112
+0114;LATIN CAPITAL LETTER E WITH BREVE;Lu;0;L;0045 0306;;;;N;LATIN CAPITAL LETTER E BREVE;;;0115;
+0115;LATIN SMALL LETTER E WITH BREVE;Ll;0;L;0065 0306;;;;N;LATIN SMALL LETTER E BREVE;;0114;;0114
+0116;LATIN CAPITAL LETTER E WITH DOT ABOVE;Lu;0;L;0045 0307;;;;N;LATIN CAPITAL LETTER E DOT;;;0117;
+0117;LATIN SMALL LETTER E WITH DOT ABOVE;Ll;0;L;0065 0307;;;;N;LATIN SMALL LETTER E DOT;;0116;;0116
+0118;LATIN CAPITAL LETTER E WITH OGONEK;Lu;0;L;0045 0328;;;;N;LATIN CAPITAL LETTER E OGONEK;;;0119;
+0119;LATIN SMALL LETTER E WITH OGONEK;Ll;0;L;0065 0328;;;;N;LATIN SMALL LETTER E OGONEK;;0118;;0118
+011A;LATIN CAPITAL LETTER E WITH CARON;Lu;0;L;0045 030C;;;;N;LATIN CAPITAL LETTER E HACEK;;;011B;
+011B;LATIN SMALL LETTER E WITH CARON;Ll;0;L;0065 030C;;;;N;LATIN SMALL LETTER E HACEK;;011A;;011A
+011C;LATIN CAPITAL LETTER G WITH CIRCUMFLEX;Lu;0;L;0047 0302;;;;N;LATIN CAPITAL LETTER G CIRCUMFLEX;;;011D;
+011D;LATIN SMALL LETTER G WITH CIRCUMFLEX;Ll;0;L;0067 0302;;;;N;LATIN SMALL LETTER G CIRCUMFLEX;;011C;;011C
+011E;LATIN CAPITAL LETTER G WITH BREVE;Lu;0;L;0047 0306;;;;N;LATIN CAPITAL LETTER G BREVE;;;011F;
+011F;LATIN SMALL LETTER G WITH BREVE;Ll;0;L;0067 0306;;;;N;LATIN SMALL LETTER G BREVE;;011E;;011E
+0120;LATIN CAPITAL LETTER G WITH DOT ABOVE;Lu;0;L;0047 0307;;;;N;LATIN CAPITAL LETTER G DOT;;;0121;
+0121;LATIN SMALL LETTER G WITH DOT ABOVE;Ll;0;L;0067 0307;;;;N;LATIN SMALL LETTER G DOT;;0120;;0120
+0122;LATIN CAPITAL LETTER G WITH CEDILLA;Lu;0;L;0047 0327;;;;N;LATIN CAPITAL LETTER G CEDILLA;;;0123;
+0123;LATIN SMALL LETTER G WITH CEDILLA;Ll;0;L;0067 0327;;;;N;LATIN SMALL LETTER G CEDILLA;;0122;;0122
+0124;LATIN CAPITAL LETTER H WITH CIRCUMFLEX;Lu;0;L;0048 0302;;;;N;LATIN CAPITAL LETTER H CIRCUMFLEX;;;0125;
+0125;LATIN SMALL LETTER H WITH CIRCUMFLEX;Ll;0;L;0068 0302;;;;N;LATIN SMALL LETTER H CIRCUMFLEX;;0124;;0124
+0126;LATIN CAPITAL LETTER H WITH STROKE;Lu;0;L;;;;;N;LATIN CAPITAL LETTER H BAR;;;0127;
+0127;LATIN SMALL LETTER H WITH STROKE;Ll;0;L;;;;;N;LATIN SMALL LETTER H BAR;;0126;;0126
+0128;LATIN CAPITAL LETTER I WITH TILDE;Lu;0;L;0049 0303;;;;N;LATIN CAPITAL LETTER I TILDE;;;0129;
+0129;LATIN SMALL LETTER I WITH TILDE;Ll;0;L;0069 0303;;;;N;LATIN SMALL LETTER I TILDE;;0128;;0128
+012A;LATIN CAPITAL LETTER I WITH MACRON;Lu;0;L;0049 0304;;;;N;LATIN CAPITAL LETTER I MACRON;;;012B;
+012B;LATIN SMALL LETTER I WITH MACRON;Ll;0;L;0069 0304;;;;N;LATIN SMALL LETTER I MACRON;;012A;;012A
+012C;LATIN CAPITAL LETTER I WITH BREVE;Lu;0;L;0049 0306;;;;N;LATIN CAPITAL LETTER I BREVE;;;012D;
+012D;LATIN SMALL LETTER I WITH BREVE;Ll;0;L;0069 0306;;;;N;LATIN SMALL LETTER I BREVE;;012C;;012C
+012E;LATIN CAPITAL LETTER I WITH OGONEK;Lu;0;L;0049 0328;;;;N;LATIN CAPITAL LETTER I OGONEK;;;012F;
+012F;LATIN SMALL LETTER I WITH OGONEK;Ll;0;L;0069 0328;;;;N;LATIN SMALL LETTER I OGONEK;;012E;;012E
+0130;LATIN CAPITAL LETTER I WITH DOT ABOVE;Lu;0;L;0049 0307;;;;N;LATIN CAPITAL LETTER I DOT;;;0069;
+0131;LATIN SMALL LETTER DOTLESS I;Ll;0;L;;;;;N;;;0049;;0049
+0132;LATIN CAPITAL LIGATURE IJ;Lu;0;L;<compat> 0049 004A;;;;N;LATIN CAPITAL LETTER I J;;;0133;
+0133;LATIN SMALL LIGATURE IJ;Ll;0;L;<compat> 0069 006A;;;;N;LATIN SMALL LETTER I J;;0132;;0132
+0134;LATIN CAPITAL LETTER J WITH CIRCUMFLEX;Lu;0;L;004A 0302;;;;N;LATIN CAPITAL LETTER J CIRCUMFLEX;;;0135;
+0135;LATIN SMALL LETTER J WITH CIRCUMFLEX;Ll;0;L;006A 0302;;;;N;LATIN SMALL LETTER J CIRCUMFLEX;;0134;;0134
+0136;LATIN CAPITAL LETTER K WITH CEDILLA;Lu;0;L;004B 0327;;;;N;LATIN CAPITAL LETTER K CEDILLA;;;0137;
+0137;LATIN SMALL LETTER K WITH CEDILLA;Ll;0;L;006B 0327;;;;N;LATIN SMALL LETTER K CEDILLA;;0136;;0136
+0138;LATIN SMALL LETTER KRA;Ll;0;L;;;;;N;;;;;
+0139;LATIN CAPITAL LETTER L WITH ACUTE;Lu;0;L;004C 0301;;;;N;LATIN CAPITAL LETTER L ACUTE;;;013A;
+013A;LATIN SMALL LETTER L WITH ACUTE;Ll;0;L;006C 0301;;;;N;LATIN SMALL LETTER L ACUTE;;0139;;0139
+013B;LATIN CAPITAL LETTER L WITH CEDILLA;Lu;0;L;004C 0327;;;;N;LATIN CAPITAL LETTER L CEDILLA;;;013C;
+013C;LATIN SMALL LETTER L WITH CEDILLA;Ll;0;L;006C 0327;;;;N;LATIN SMALL LETTER L CEDILLA;;013B;;013B
+013D;LATIN CAPITAL LETTER L WITH CARON;Lu;0;L;004C 030C;;;;N;LATIN CAPITAL LETTER L HACEK;;;013E;
+013E;LATIN SMALL LETTER L WITH CARON;Ll;0;L;006C 030C;;;;N;LATIN SMALL LETTER L HACEK;;013D;;013D
+013F;LATIN CAPITAL LETTER L WITH MIDDLE DOT;Lu;0;L;<compat> 004C 00B7;;;;N;;;;0140;
+0140;LATIN SMALL LETTER L WITH MIDDLE DOT;Ll;0;L;<compat> 006C 00B7;;;;N;;;013F;;013F
+0141;LATIN CAPITAL LETTER L WITH STROKE;Lu;0;L;;;;;N;LATIN CAPITAL LETTER L SLASH;;;0142;
+0142;LATIN SMALL LETTER L WITH STROKE;Ll;0;L;;;;;N;LATIN SMALL LETTER L SLASH;;0141;;0141
+0143;LATIN CAPITAL LETTER N WITH ACUTE;Lu;0;L;004E 0301;;;;N;LATIN CAPITAL LETTER N ACUTE;;;0144;
+0144;LATIN SMALL LETTER N WITH ACUTE;Ll;0;L;006E 0301;;;;N;LATIN SMALL LETTER N ACUTE;;0143;;0143
+0145;LATIN CAPITAL LETTER N WITH CEDILLA;Lu;0;L;004E 0327;;;;N;LATIN CAPITAL LETTER N CEDILLA;;;0146;
+0146;LATIN SMALL LETTER N WITH CEDILLA;Ll;0;L;006E 0327;;;;N;LATIN SMALL LETTER N CEDILLA;;0145;;0145
+0147;LATIN CAPITAL LETTER N WITH CARON;Lu;0;L;004E 030C;;;;N;LATIN CAPITAL LETTER N HACEK;;;0148;
+0148;LATIN SMALL LETTER N WITH CARON;Ll;0;L;006E 030C;;;;N;LATIN SMALL LETTER N HACEK;;0147;;0147
+0149;LATIN SMALL LETTER N PRECEDED BY APOSTROPHE;Ll;0;L;<compat> 02BC 006E;;;;N;LATIN SMALL LETTER APOSTROPHE N;;;;
+014A;LATIN CAPITAL LETTER ENG;Lu;0;L;;;;;N;;;;014B;
+014B;LATIN SMALL LETTER ENG;Ll;0;L;;;;;N;;;014A;;014A
+014C;LATIN CAPITAL LETTER O WITH MACRON;Lu;0;L;004F 0304;;;;N;LATIN CAPITAL LETTER O MACRON;;;014D;
+014D;LATIN SMALL LETTER O WITH MACRON;Ll;0;L;006F 0304;;;;N;LATIN SMALL LETTER O MACRON;;014C;;014C
+014E;LATIN CAPITAL LETTER O WITH BREVE;Lu;0;L;004F 0306;;;;N;LATIN CAPITAL LETTER O BREVE;;;014F;
+014F;LATIN SMALL LETTER O WITH BREVE;Ll;0;L;006F 0306;;;;N;LATIN SMALL LETTER O BREVE;;014E;;014E
+0150;LATIN CAPITAL LETTER O WITH DOUBLE ACUTE;Lu;0;L;004F 030B;;;;N;LATIN CAPITAL LETTER O DOUBLE ACUTE;;;0151;
+0151;LATIN SMALL LETTER O WITH DOUBLE ACUTE;Ll;0;L;006F 030B;;;;N;LATIN SMALL LETTER O DOUBLE ACUTE;;0150;;0150
+0152;LATIN CAPITAL LIGATURE OE;Lu;0;L;;;;;N;LATIN CAPITAL LETTER O E;;;0153;
+0153;LATIN SMALL LIGATURE OE;Ll;0;L;;;;;N;LATIN SMALL LETTER O E;;0152;;0152
+0154;LATIN CAPITAL LETTER R WITH ACUTE;Lu;0;L;0052 0301;;;;N;LATIN CAPITAL LETTER R ACUTE;;;0155;
+0155;LATIN SMALL LETTER R WITH ACUTE;Ll;0;L;0072 0301;;;;N;LATIN SMALL LETTER R ACUTE;;0154;;0154
+0156;LATIN CAPITAL LETTER R WITH CEDILLA;Lu;0;L;0052 0327;;;;N;LATIN CAPITAL LETTER R CEDILLA;;;0157;
+0157;LATIN SMALL LETTER R WITH CEDILLA;Ll;0;L;0072 0327;;;;N;LATIN SMALL LETTER R CEDILLA;;0156;;0156
+0158;LATIN CAPITAL LETTER R WITH CARON;Lu;0;L;0052 030C;;;;N;LATIN CAPITAL LETTER R HACEK;;;0159;
+0159;LATIN SMALL LETTER R WITH CARON;Ll;0;L;0072 030C;;;;N;LATIN SMALL LETTER R HACEK;;0158;;0158
+015A;LATIN CAPITAL LETTER S WITH ACUTE;Lu;0;L;0053 0301;;;;N;LATIN CAPITAL LETTER S ACUTE;;;015B;
+015B;LATIN SMALL LETTER S WITH ACUTE;Ll;0;L;0073 0301;;;;N;LATIN SMALL LETTER S ACUTE;;015A;;015A
+015C;LATIN CAPITAL LETTER S WITH CIRCUMFLEX;Lu;0;L;0053 0302;;;;N;LATIN CAPITAL LETTER S CIRCUMFLEX;;;015D;
+015D;LATIN SMALL LETTER S WITH CIRCUMFLEX;Ll;0;L;0073 0302;;;;N;LATIN SMALL LETTER S CIRCUMFLEX;;015C;;015C
+015E;LATIN CAPITAL LETTER S WITH CEDILLA;Lu;0;L;0053 0327;;;;N;LATIN CAPITAL LETTER S CEDILLA;;;015F;
+015F;LATIN SMALL LETTER S WITH CEDILLA;Ll;0;L;0073 0327;;;;N;LATIN SMALL LETTER S CEDILLA;;015E;;015E
+0160;LATIN CAPITAL LETTER S WITH CARON;Lu;0;L;0053 030C;;;;N;LATIN CAPITAL LETTER S HACEK;;;0161;
+0161;LATIN SMALL LETTER S WITH CARON;Ll;0;L;0073 030C;;;;N;LATIN SMALL LETTER S HACEK;;0160;;0160
+0162;LATIN CAPITAL LETTER T WITH CEDILLA;Lu;0;L;0054 0327;;;;N;LATIN CAPITAL LETTER T CEDILLA;;;0163;
+0163;LATIN SMALL LETTER T WITH CEDILLA;Ll;0;L;0074 0327;;;;N;LATIN SMALL LETTER T CEDILLA;;0162;;0162
+0164;LATIN CAPITAL LETTER T WITH CARON;Lu;0;L;0054 030C;;;;N;LATIN CAPITAL LETTER T HACEK;;;0165;
+0165;LATIN SMALL LETTER T WITH CARON;Ll;0;L;0074 030C;;;;N;LATIN SMALL LETTER T HACEK;;0164;;0164
+0166;LATIN CAPITAL LETTER T WITH STROKE;Lu;0;L;;;;;N;LATIN CAPITAL LETTER T BAR;;;0167;
+0167;LATIN SMALL LETTER T WITH STROKE;Ll;0;L;;;;;N;LATIN SMALL LETTER T BAR;;0166;;0166
+0168;LATIN CAPITAL LETTER U WITH TILDE;Lu;0;L;0055 0303;;;;N;LATIN CAPITAL LETTER U TILDE;;;0169;
+0169;LATIN SMALL LETTER U WITH TILDE;Ll;0;L;0075 0303;;;;N;LATIN SMALL LETTER U TILDE;;0168;;0168
+016A;LATIN CAPITAL LETTER U WITH MACRON;Lu;0;L;0055 0304;;;;N;LATIN CAPITAL LETTER U MACRON;;;016B;
+016B;LATIN SMALL LETTER U WITH MACRON;Ll;0;L;0075 0304;;;;N;LATIN SMALL LETTER U MACRON;;016A;;016A
+016C;LATIN CAPITAL LETTER U WITH BREVE;Lu;0;L;0055 0306;;;;N;LATIN CAPITAL LETTER U BREVE;;;016D;
+016D;LATIN SMALL LETTER U WITH BREVE;Ll;0;L;0075 0306;;;;N;LATIN SMALL LETTER U BREVE;;016C;;016C
+016E;LATIN CAPITAL LETTER U WITH RING ABOVE;Lu;0;L;0055 030A;;;;N;LATIN CAPITAL LETTER U RING;;;016F;
+016F;LATIN SMALL LETTER U WITH RING ABOVE;Ll;0;L;0075 030A;;;;N;LATIN SMALL LETTER U RING;;016E;;016E
+0170;LATIN CAPITAL LETTER U WITH DOUBLE ACUTE;Lu;0;L;0055 030B;;;;N;LATIN CAPITAL LETTER U DOUBLE ACUTE;;;0171;
+0171;LATIN SMALL LETTER U WITH DOUBLE ACUTE;Ll;0;L;0075 030B;;;;N;LATIN SMALL LETTER U DOUBLE ACUTE;;0170;;0170
+0172;LATIN CAPITAL LETTER U WITH OGONEK;Lu;0;L;0055 0328;;;;N;LATIN CAPITAL LETTER U OGONEK;;;0173;
+0173;LATIN SMALL LETTER U WITH OGONEK;Ll;0;L;0075 0328;;;;N;LATIN SMALL LETTER U OGONEK;;0172;;0172
+0174;LATIN CAPITAL LETTER W WITH CIRCUMFLEX;Lu;0;L;0057 0302;;;;N;LATIN CAPITAL LETTER W CIRCUMFLEX;;;0175;
+0175;LATIN SMALL LETTER W WITH CIRCUMFLEX;Ll;0;L;0077 0302;;;;N;LATIN SMALL LETTER W CIRCUMFLEX;;0174;;0174
+0176;LATIN CAPITAL LETTER Y WITH CIRCUMFLEX;Lu;0;L;0059 0302;;;;N;LATIN CAPITAL LETTER Y CIRCUMFLEX;;;0177;
+0177;LATIN SMALL LETTER Y WITH CIRCUMFLEX;Ll;0;L;0079 0302;;;;N;LATIN SMALL LETTER Y CIRCUMFLEX;;0176;;0176
+0178;LATIN CAPITAL LETTER Y WITH DIAERESIS;Lu;0;L;0059 0308;;;;N;LATIN CAPITAL LETTER Y DIAERESIS;;;00FF;
+0179;LATIN CAPITAL LETTER Z WITH ACUTE;Lu;0;L;005A 0301;;;;N;LATIN CAPITAL LETTER Z ACUTE;;;017A;
+017A;LATIN SMALL LETTER Z WITH ACUTE;Ll;0;L;007A 0301;;;;N;LATIN SMALL LETTER Z ACUTE;;0179;;0179
+017B;LATIN CAPITAL LETTER Z WITH DOT ABOVE;Lu;0;L;005A 0307;;;;N;LATIN CAPITAL LETTER Z DOT;;;017C;
+017C;LATIN SMALL LETTER Z WITH DOT ABOVE;Ll;0;L;007A 0307;;;;N;LATIN SMALL LETTER Z DOT;;017B;;017B
+017D;LATIN CAPITAL LETTER Z WITH CARON;Lu;0;L;005A 030C;;;;N;LATIN CAPITAL LETTER Z HACEK;;;017E;
+017E;LATIN SMALL LETTER Z WITH CARON;Ll;0;L;007A 030C;;;;N;LATIN SMALL LETTER Z HACEK;;017D;;017D
+017F;LATIN SMALL LETTER LONG S;Ll;0;L;<compat> 0073;;;;N;;;0053;;0053
+0180;LATIN SMALL LETTER B WITH STROKE;Ll;0;L;;;;;N;LATIN SMALL LETTER B BAR;;0243;;0243
+0181;LATIN CAPITAL LETTER B WITH HOOK;Lu;0;L;;;;;N;LATIN CAPITAL LETTER B HOOK;;;0253;
+0182;LATIN CAPITAL LETTER B WITH TOPBAR;Lu;0;L;;;;;N;LATIN CAPITAL LETTER B TOPBAR;;;0183;
+0183;LATIN SMALL LETTER B WITH TOPBAR;Ll;0;L;;;;;N;LATIN SMALL LETTER B TOPBAR;;0182;;0182
+0184;LATIN CAPITAL LETTER TONE SIX;Lu;0;L;;;;;N;;;;0185;
+0185;LATIN SMALL LETTER TONE SIX;Ll;0;L;;;;;N;;;0184;;0184
+0186;LATIN CAPITAL LETTER OPEN O;Lu;0;L;;;;;N;;;;0254;
+0187;LATIN CAPITAL LETTER C WITH HOOK;Lu;0;L;;;;;N;LATIN CAPITAL LETTER C HOOK;;;0188;
+0188;LATIN SMALL LETTER C WITH HOOK;Ll;0;L;;;;;N;LATIN SMALL LETTER C HOOK;;0187;;0187
+0189;LATIN CAPITAL LETTER AFRICAN D;Lu;0;L;;;;;N;;;;0256;
+018A;LATIN CAPITAL LETTER D WITH HOOK;Lu;0;L;;;;;N;LATIN CAPITAL LETTER D HOOK;;;0257;
+018B;LATIN CAPITAL LETTER D WITH TOPBAR;Lu;0;L;;;;;N;LATIN CAPITAL LETTER D TOPBAR;;;018C;
+018C;LATIN SMALL LETTER D WITH TOPBAR;Ll;0;L;;;;;N;LATIN SMALL LETTER D TOPBAR;;018B;;018B
+018D;LATIN SMALL LETTER TURNED DELTA;Ll;0;L;;;;;N;;;;;
+018E;LATIN CAPITAL LETTER REVERSED E;Lu;0;L;;;;;N;LATIN CAPITAL LETTER TURNED E;;;01DD;
+018F;LATIN CAPITAL LETTER SCHWA;Lu;0;L;;;;;N;;;;0259;
+0190;LATIN CAPITAL LETTER OPEN E;Lu;0;L;;;;;N;LATIN CAPITAL LETTER EPSILON;;;025B;
+0191;LATIN CAPITAL LETTER F WITH HOOK;Lu;0;L;;;;;N;LATIN CAPITAL LETTER F HOOK;;;0192;
+0192;LATIN SMALL LETTER F WITH HOOK;Ll;0;L;;;;;N;LATIN SMALL LETTER SCRIPT F;;0191;;0191
+0193;LATIN CAPITAL LETTER G WITH HOOK;Lu;0;L;;;;;N;LATIN CAPITAL LETTER G HOOK;;;0260;
+0194;LATIN CAPITAL LETTER GAMMA;Lu;0;L;;;;;N;;;;0263;
+0195;LATIN SMALL LETTER HV;Ll;0;L;;;;;N;LATIN SMALL LETTER H V;;01F6;;01F6
+0196;LATIN CAPITAL LETTER IOTA;Lu;0;L;;;;;N;;;;0269;
+0197;LATIN CAPITAL LETTER I WITH STROKE;Lu;0;L;;;;;N;LATIN CAPITAL LETTER BARRED I;;;0268;
+0198;LATIN CAPITAL LETTER K WITH HOOK;Lu;0;L;;;;;N;LATIN CAPITAL LETTER K HOOK;;;0199;
+0199;LATIN SMALL LETTER K WITH HOOK;Ll;0;L;;;;;N;LATIN SMALL LETTER K HOOK;;0198;;0198
+019A;LATIN SMALL LETTER L WITH BAR;Ll;0;L;;;;;N;LATIN SMALL LETTER BARRED L;;023D;;023D
+019B;LATIN SMALL LETTER LAMBDA WITH STROKE;Ll;0;L;;;;;N;LATIN SMALL LETTER BARRED LAMBDA;;;;
+019C;LATIN CAPITAL LETTER TURNED M;Lu;0;L;;;;;N;;;;026F;
+019D;LATIN CAPITAL LETTER N WITH LEFT HOOK;Lu;0;L;;;;;N;LATIN CAPITAL LETTER N HOOK;;;0272;
+019E;LATIN SMALL LETTER N WITH LONG RIGHT LEG;Ll;0;L;;;;;N;;;0220;;0220
+019F;LATIN CAPITAL LETTER O WITH MIDDLE TILDE;Lu;0;L;;;;;N;LATIN CAPITAL LETTER BARRED O;;;0275;
+01A0;LATIN CAPITAL LETTER O WITH HORN;Lu;0;L;004F 031B;;;;N;LATIN CAPITAL LETTER O HORN;;;01A1;
+01A1;LATIN SMALL LETTER O WITH HORN;Ll;0;L;006F 031B;;;;N;LATIN SMALL LETTER O HORN;;01A0;;01A0
+01A2;LATIN CAPITAL LETTER OI;Lu;0;L;;;;;N;LATIN CAPITAL LETTER O I;;;01A3;
+01A3;LATIN SMALL LETTER OI;Ll;0;L;;;;;N;LATIN SMALL LETTER O I;;01A2;;01A2
+01A4;LATIN CAPITAL LETTER P WITH HOOK;Lu;0;L;;;;;N;LATIN CAPITAL LETTER P HOOK;;;01A5;
+01A5;LATIN SMALL LETTER P WITH HOOK;Ll;0;L;;;;;N;LATIN SMALL LETTER P HOOK;;01A4;;01A4
+01A6;LATIN LETTER YR;Lu;0;L;;;;;N;LATIN LETTER Y R;;;0280;
+01A7;LATIN CAPITAL LETTER TONE TWO;Lu;0;L;;;;;N;;;;01A8;
+01A8;LATIN SMALL LETTER TONE TWO;Ll;0;L;;;;;N;;;01A7;;01A7
+01A9;LATIN CAPITAL LETTER ESH;Lu;0;L;;;;;N;;;;0283;
+01AA;LATIN LETTER REVERSED ESH LOOP;Ll;0;L;;;;;N;;;;;
+01AB;LATIN SMALL LETTER T WITH PALATAL HOOK;Ll;0;L;;;;;N;LATIN SMALL LETTER T PALATAL HOOK;;;;
+01AC;LATIN CAPITAL LETTER T WITH HOOK;Lu;0;L;;;;;N;LATIN CAPITAL LETTER T HOOK;;;01AD;
+01AD;LATIN SMALL LETTER T WITH HOOK;Ll;0;L;;;;;N;LATIN SMALL LETTER T HOOK;;01AC;;01AC
+01AE;LATIN CAPITAL LETTER T WITH RETROFLEX HOOK;Lu;0;L;;;;;N;LATIN CAPITAL LETTER T RETROFLEX HOOK;;;0288;
+01AF;LATIN CAPITAL LETTER U WITH HORN;Lu;0;L;0055 031B;;;;N;LATIN CAPITAL LETTER U HORN;;;01B0;
+01B0;LATIN SMALL LETTER U WITH HORN;Ll;0;L;0075 031B;;;;N;LATIN SMALL LETTER U HORN;;01AF;;01AF
+01B1;LATIN CAPITAL LETTER UPSILON;Lu;0;L;;;;;N;;;;028A;
+01B2;LATIN CAPITAL LETTER V WITH HOOK;Lu;0;L;;;;;N;LATIN CAPITAL LETTER SCRIPT V;;;028B;
+01B3;LATIN CAPITAL LETTER Y WITH HOOK;Lu;0;L;;;;;N;LATIN CAPITAL LETTER Y HOOK;;;01B4;
+01B4;LATIN SMALL LETTER Y WITH HOOK;Ll;0;L;;;;;N;LATIN SMALL LETTER Y HOOK;;01B3;;01B3
+01B5;LATIN CAPITAL LETTER Z WITH STROKE;Lu;0;L;;;;;N;LATIN CAPITAL LETTER Z BAR;;;01B6;
+01B6;LATIN SMALL LETTER Z WITH STROKE;Ll;0;L;;;;;N;LATIN SMALL LETTER Z BAR;;01B5;;01B5
+01B7;LATIN CAPITAL LETTER EZH;Lu;0;L;;;;;N;LATIN CAPITAL LETTER YOGH;;;0292;
+01B8;LATIN CAPITAL LETTER EZH REVERSED;Lu;0;L;;;;;N;LATIN CAPITAL LETTER REVERSED YOGH;;;01B9;
+01B9;LATIN SMALL LETTER EZH REVERSED;Ll;0;L;;;;;N;LATIN SMALL LETTER REVERSED YOGH;;01B8;;01B8
+01BA;LATIN SMALL LETTER EZH WITH TAIL;Ll;0;L;;;;;N;LATIN SMALL LETTER YOGH WITH TAIL;;;;
+01BB;LATIN LETTER TWO WITH STROKE;Lo;0;L;;;;;N;LATIN LETTER TWO BAR;;;;
+01BC;LATIN CAPITAL LETTER TONE FIVE;Lu;0;L;;;;;N;;;;01BD;
+01BD;LATIN SMALL LETTER TONE FIVE;Ll;0;L;;;;;N;;;01BC;;01BC
+01BE;LATIN LETTER INVERTED GLOTTAL STOP WITH STROKE;Ll;0;L;;;;;N;LATIN LETTER INVERTED GLOTTAL STOP BAR;;;;
+01BF;LATIN LETTER WYNN;Ll;0;L;;;;;N;;;01F7;;01F7
+01C0;LATIN LETTER DENTAL CLICK;Lo;0;L;;;;;N;LATIN LETTER PIPE;;;;
+01C1;LATIN LETTER LATERAL CLICK;Lo;0;L;;;;;N;LATIN LETTER DOUBLE PIPE;;;;
+01C2;LATIN LETTER ALVEOLAR CLICK;Lo;0;L;;;;;N;LATIN LETTER PIPE DOUBLE BAR;;;;
+01C3;LATIN LETTER RETROFLEX CLICK;Lo;0;L;;;;;N;LATIN LETTER EXCLAMATION MARK;;;;
+01C4;LATIN CAPITAL LETTER DZ WITH CARON;Lu;0;L;<compat> 0044 017D;;;;N;LATIN CAPITAL LETTER D Z HACEK;;;01C6;01C5
+01C5;LATIN CAPITAL LETTER D WITH SMALL LETTER Z WITH CARON;Lt;0;L;<compat> 0044 017E;;;;N;LATIN LETTER CAPITAL D SMALL Z HACEK;;01C4;01C6;01C5
+01C6;LATIN SMALL LETTER DZ WITH CARON;Ll;0;L;<compat> 0064 017E;;;;N;LATIN SMALL LETTER D Z HACEK;;01C4;;01C5
+01C7;LATIN CAPITAL LETTER LJ;Lu;0;L;<compat> 004C 004A;;;;N;LATIN CAPITAL LETTER L J;;;01C9;01C8
+01C8;LATIN CAPITAL LETTER L WITH SMALL LETTER J;Lt;0;L;<compat> 004C 006A;;;;N;LATIN LETTER CAPITAL L SMALL J;;01C7;01C9;01C8
+01C9;LATIN SMALL LETTER LJ;Ll;0;L;<compat> 006C 006A;;;;N;LATIN SMALL LETTER L J;;01C7;;01C8
+01CA;LATIN CAPITAL LETTER NJ;Lu;0;L;<compat> 004E 004A;;;;N;LATIN CAPITAL LETTER N J;;;01CC;01CB
+01CB;LATIN CAPITAL LETTER N WITH SMALL LETTER J;Lt;0;L;<compat> 004E 006A;;;;N;LATIN LETTER CAPITAL N SMALL J;;01CA;01CC;01CB
+01CC;LATIN SMALL LETTER NJ;Ll;0;L;<compat> 006E 006A;;;;N;LATIN SMALL LETTER N J;;01CA;;01CB
+01CD;LATIN CAPITAL LETTER A WITH CARON;Lu;0;L;0041 030C;;;;N;LATIN CAPITAL LETTER A HACEK;;;01CE;
+01CE;LATIN SMALL LETTER A WITH CARON;Ll;0;L;0061 030C;;;;N;LATIN SMALL LETTER A HACEK;;01CD;;01CD
+01CF;LATIN CAPITAL LETTER I WITH CARON;Lu;0;L;0049 030C;;;;N;LATIN CAPITAL LETTER I HACEK;;;01D0;
+01D0;LATIN SMALL LETTER I WITH CARON;Ll;0;L;0069 030C;;;;N;LATIN SMALL LETTER I HACEK;;01CF;;01CF
+01D1;LATIN CAPITAL LETTER O WITH CARON;Lu;0;L;004F 030C;;;;N;LATIN CAPITAL LETTER O HACEK;;;01D2;
+01D2;LATIN SMALL LETTER O WITH CARON;Ll;0;L;006F 030C;;;;N;LATIN SMALL LETTER O HACEK;;01D1;;01D1
+01D3;LATIN CAPITAL LETTER U WITH CARON;Lu;0;L;0055 030C;;;;N;LATIN CAPITAL LETTER U HACEK;;;01D4;
+01D4;LATIN SMALL LETTER U WITH CARON;Ll;0;L;0075 030C;;;;N;LATIN SMALL LETTER U HACEK;;01D3;;01D3
+01D5;LATIN CAPITAL LETTER U WITH DIAERESIS AND MACRON;Lu;0;L;00DC 0304;;;;N;LATIN CAPITAL LETTER U DIAERESIS MACRON;;;01D6;
+01D6;LATIN SMALL LETTER U WITH DIAERESIS AND MACRON;Ll;0;L;00FC 0304;;;;N;LATIN SMALL LETTER U DIAERESIS MACRON;;01D5;;01D5
+01D7;LATIN CAPITAL LETTER U WITH DIAERESIS AND ACUTE;Lu;0;L;00DC 0301;;;;N;LATIN CAPITAL LETTER U DIAERESIS ACUTE;;;01D8;
+01D8;LATIN SMALL LETTER U WITH DIAERESIS AND ACUTE;Ll;0;L;00FC 0301;;;;N;LATIN SMALL LETTER U DIAERESIS ACUTE;;01D7;;01D7
+01D9;LATIN CAPITAL LETTER U WITH DIAERESIS AND CARON;Lu;0;L;00DC 030C;;;;N;LATIN CAPITAL LETTER U DIAERESIS HACEK;;;01DA;
+01DA;LATIN SMALL LETTER U WITH DIAERESIS AND CARON;Ll;0;L;00FC 030C;;;;N;LATIN SMALL LETTER U DIAERESIS HACEK;;01D9;;01D9
+01DB;LATIN CAPITAL LETTER U WITH DIAERESIS AND GRAVE;Lu;0;L;00DC 0300;;;;N;LATIN CAPITAL LETTER U DIAERESIS GRAVE;;;01DC;
+01DC;LATIN SMALL LETTER U WITH DIAERESIS AND GRAVE;Ll;0;L;00FC 0300;;;;N;LATIN SMALL LETTER U DIAERESIS GRAVE;;01DB;;01DB
+01DD;LATIN SMALL LETTER TURNED E;Ll;0;L;;;;;N;;;018E;;018E
+01DE;LATIN CAPITAL LETTER A WITH DIAERESIS AND MACRON;Lu;0;L;00C4 0304;;;;N;LATIN CAPITAL LETTER A DIAERESIS MACRON;;;01DF;
+01DF;LATIN SMALL LETTER A WITH DIAERESIS AND MACRON;Ll;0;L;00E4 0304;;;;N;LATIN SMALL LETTER A DIAERESIS MACRON;;01DE;;01DE
+01E0;LATIN CAPITAL LETTER A WITH DOT ABOVE AND MACRON;Lu;0;L;0226 0304;;;;N;LATIN CAPITAL LETTER A DOT MACRON;;;01E1;
+01E1;LATIN SMALL LETTER A WITH DOT ABOVE AND MACRON;Ll;0;L;0227 0304;;;;N;LATIN SMALL LETTER A DOT MACRON;;01E0;;01E0
+01E2;LATIN CAPITAL LETTER AE WITH MACRON;Lu;0;L;00C6 0304;;;;N;LATIN CAPITAL LETTER A E MACRON;;;01E3;
+01E3;LATIN SMALL LETTER AE WITH MACRON;Ll;0;L;00E6 0304;;;;N;LATIN SMALL LETTER A E MACRON;;01E2;;01E2
+01E4;LATIN CAPITAL LETTER G WITH STROKE;Lu;0;L;;;;;N;LATIN CAPITAL LETTER G BAR;;;01E5;
+01E5;LATIN SMALL LETTER G WITH STROKE;Ll;0;L;;;;;N;LATIN SMALL LETTER G BAR;;01E4;;01E4
+01E6;LATIN CAPITAL LETTER G WITH CARON;Lu;0;L;0047 030C;;;;N;LATIN CAPITAL LETTER G HACEK;;;01E7;
+01E7;LATIN SMALL LETTER G WITH CARON;Ll;0;L;0067 030C;;;;N;LATIN SMALL LETTER G HACEK;;01E6;;01E6
+01E8;LATIN CAPITAL LETTER K WITH CARON;Lu;0;L;004B 030C;;;;N;LATIN CAPITAL LETTER K HACEK;;;01E9;
+01E9;LATIN SMALL LETTER K WITH CARON;Ll;0;L;006B 030C;;;;N;LATIN SMALL LETTER K HACEK;;01E8;;01E8
+01EA;LATIN CAPITAL LETTER O WITH OGONEK;Lu;0;L;004F 0328;;;;N;LATIN CAPITAL LETTER O OGONEK;;;01EB;
+01EB;LATIN SMALL LETTER O WITH OGONEK;Ll;0;L;006F 0328;;;;N;LATIN SMALL LETTER O OGONEK;;01EA;;01EA
+01EC;LATIN CAPITAL LETTER O WITH OGONEK AND MACRON;Lu;0;L;01EA 0304;;;;N;LATIN CAPITAL LETTER O OGONEK MACRON;;;01ED;
+01ED;LATIN SMALL LETTER O WITH OGONEK AND MACRON;Ll;0;L;01EB 0304;;;;N;LATIN SMALL LETTER O OGONEK MACRON;;01EC;;01EC
+01EE;LATIN CAPITAL LETTER EZH WITH CARON;Lu;0;L;01B7 030C;;;;N;LATIN CAPITAL LETTER YOGH HACEK;;;01EF;
+01EF;LATIN SMALL LETTER EZH WITH CARON;Ll;0;L;0292 030C;;;;N;LATIN SMALL LETTER YOGH HACEK;;01EE;;01EE
+01F0;LATIN SMALL LETTER J WITH CARON;Ll;0;L;006A 030C;;;;N;LATIN SMALL LETTER J HACEK;;;;
+01F1;LATIN CAPITAL LETTER DZ;Lu;0;L;<compat> 0044 005A;;;;N;;;;01F3;01F2
+01F2;LATIN CAPITAL LETTER D WITH SMALL LETTER Z;Lt;0;L;<compat> 0044 007A;;;;N;;;01F1;01F3;01F2
+01F3;LATIN SMALL LETTER DZ;Ll;0;L;<compat> 0064 007A;;;;N;;;01F1;;01F2
+01F4;LATIN CAPITAL LETTER G WITH ACUTE;Lu;0;L;0047 0301;;;;N;;;;01F5;
+01F5;LATIN SMALL LETTER G WITH ACUTE;Ll;0;L;0067 0301;;;;N;;;01F4;;01F4
+01F6;LATIN CAPITAL LETTER HWAIR;Lu;0;L;;;;;N;;;;0195;
+01F7;LATIN CAPITAL LETTER WYNN;Lu;0;L;;;;;N;;;;01BF;
+01F8;LATIN CAPITAL LETTER N WITH GRAVE;Lu;0;L;004E 0300;;;;N;;;;01F9;
+01F9;LATIN SMALL LETTER N WITH GRAVE;Ll;0;L;006E 0300;;;;N;;;01F8;;01F8
+01FA;LATIN CAPITAL LETTER A WITH RING ABOVE AND ACUTE;Lu;0;L;00C5 0301;;;;N;;;;01FB;
+01FB;LATIN SMALL LETTER A WITH RING ABOVE AND ACUTE;Ll;0;L;00E5 0301;;;;N;;;01FA;;01FA
+01FC;LATIN CAPITAL LETTER AE WITH ACUTE;Lu;0;L;00C6 0301;;;;N;;;;01FD;
+01FD;LATIN SMALL LETTER AE WITH ACUTE;Ll;0;L;00E6 0301;;;;N;;;01FC;;01FC
+01FE;LATIN CAPITAL LETTER O WITH STROKE AND ACUTE;Lu;0;L;00D8 0301;;;;N;;;;01FF;
+01FF;LATIN SMALL LETTER O WITH STROKE AND ACUTE;Ll;0;L;00F8 0301;;;;N;;;01FE;;01FE
+0200;LATIN CAPITAL LETTER A WITH DOUBLE GRAVE;Lu;0;L;0041 030F;;;;N;;;;0201;
+0201;LATIN SMALL LETTER A WITH DOUBLE GRAVE;Ll;0;L;0061 030F;;;;N;;;0200;;0200
+0202;LATIN CAPITAL LETTER A WITH INVERTED BREVE;Lu;0;L;0041 0311;;;;N;;;;0203;
+0203;LATIN SMALL LETTER A WITH INVERTED BREVE;Ll;0;L;0061 0311;;;;N;;;0202;;0202
+0204;LATIN CAPITAL LETTER E WITH DOUBLE GRAVE;Lu;0;L;0045 030F;;;;N;;;;0205;
+0205;LATIN SMALL LETTER E WITH DOUBLE GRAVE;Ll;0;L;0065 030F;;;;N;;;0204;;0204
+0206;LATIN CAPITAL LETTER E WITH INVERTED BREVE;Lu;0;L;0045 0311;;;;N;;;;0207;
+0207;LATIN SMALL LETTER E WITH INVERTED BREVE;Ll;0;L;0065 0311;;;;N;;;0206;;0206
+0208;LATIN CAPITAL LETTER I WITH DOUBLE GRAVE;Lu;0;L;0049 030F;;;;N;;;;0209;
+0209;LATIN SMALL LETTER I WITH DOUBLE GRAVE;Ll;0;L;0069 030F;;;;N;;;0208;;0208
+020A;LATIN CAPITAL LETTER I WITH INVERTED BREVE;Lu;0;L;0049 0311;;;;N;;;;020B;
+020B;LATIN SMALL LETTER I WITH INVERTED BREVE;Ll;0;L;0069 0311;;;;N;;;020A;;020A
+020C;LATIN CAPITAL LETTER O WITH DOUBLE GRAVE;Lu;0;L;004F 030F;;;;N;;;;020D;
+020D;LATIN SMALL LETTER O WITH DOUBLE GRAVE;Ll;0;L;006F 030F;;;;N;;;020C;;020C
+020E;LATIN CAPITAL LETTER O WITH INVERTED BREVE;Lu;0;L;004F 0311;;;;N;;;;020F;
+020F;LATIN SMALL LETTER O WITH INVERTED BREVE;Ll;0;L;006F 0311;;;;N;;;020E;;020E
+0210;LATIN CAPITAL LETTER R WITH DOUBLE GRAVE;Lu;0;L;0052 030F;;;;N;;;;0211;
+0211;LATIN SMALL LETTER R WITH DOUBLE GRAVE;Ll;0;L;0072 030F;;;;N;;;0210;;0210
+0212;LATIN CAPITAL LETTER R WITH INVERTED BREVE;Lu;0;L;0052 0311;;;;N;;;;0213;
+0213;LATIN SMALL LETTER R WITH INVERTED BREVE;Ll;0;L;0072 0311;;;;N;;;0212;;0212
+0214;LATIN CAPITAL LETTER U WITH DOUBLE GRAVE;Lu;0;L;0055 030F;;;;N;;;;0215;
+0215;LATIN SMALL LETTER U WITH DOUBLE GRAVE;Ll;0;L;0075 030F;;;;N;;;0214;;0214
+0216;LATIN CAPITAL LETTER U WITH INVERTED BREVE;Lu;0;L;0055 0311;;;;N;;;;0217;
+0217;LATIN SMALL LETTER U WITH INVERTED BREVE;Ll;0;L;0075 0311;;;;N;;;0216;;0216
+0218;LATIN CAPITAL LETTER S WITH COMMA BELOW;Lu;0;L;0053 0326;;;;N;;;;0219;
+0219;LATIN SMALL LETTER S WITH COMMA BELOW;Ll;0;L;0073 0326;;;;N;;;0218;;0218
+021A;LATIN CAPITAL LETTER T WITH COMMA BELOW;Lu;0;L;0054 0326;;;;N;;;;021B;
+021B;LATIN SMALL LETTER T WITH COMMA BELOW;Ll;0;L;0074 0326;;;;N;;;021A;;021A
+021C;LATIN CAPITAL LETTER YOGH;Lu;0;L;;;;;N;;;;021D;
+021D;LATIN SMALL LETTER YOGH;Ll;0;L;;;;;N;;;021C;;021C
+021E;LATIN CAPITAL LETTER H WITH CARON;Lu;0;L;0048 030C;;;;N;;;;021F;
+021F;LATIN SMALL LETTER H WITH CARON;Ll;0;L;0068 030C;;;;N;;;021E;;021E
+0220;LATIN CAPITAL LETTER N WITH LONG RIGHT LEG;Lu;0;L;;;;;N;;;;019E;
+0221;LATIN SMALL LETTER D WITH CURL;Ll;0;L;;;;;N;;;;;
+0222;LATIN CAPITAL LETTER OU;Lu;0;L;;;;;N;;;;0223;
+0223;LATIN SMALL LETTER OU;Ll;0;L;;;;;N;;;0222;;0222
+0224;LATIN CAPITAL LETTER Z WITH HOOK;Lu;0;L;;;;;N;;;;0225;
+0225;LATIN SMALL LETTER Z WITH HOOK;Ll;0;L;;;;;N;;;0224;;0224
+0226;LATIN CAPITAL LETTER A WITH DOT ABOVE;Lu;0;L;0041 0307;;;;N;;;;0227;
+0227;LATIN SMALL LETTER A WITH DOT ABOVE;Ll;0;L;0061 0307;;;;N;;;0226;;0226
+0228;LATIN CAPITAL LETTER E WITH CEDILLA;Lu;0;L;0045 0327;;;;N;;;;0229;
+0229;LATIN SMALL LETTER E WITH CEDILLA;Ll;0;L;0065 0327;;;;N;;;0228;;0228
+022A;LATIN CAPITAL LETTER O WITH DIAERESIS AND MACRON;Lu;0;L;00D6 0304;;;;N;;;;022B;
+022B;LATIN SMALL LETTER O WITH DIAERESIS AND MACRON;Ll;0;L;00F6 0304;;;;N;;;022A;;022A
+022C;LATIN CAPITAL LETTER O WITH TILDE AND MACRON;Lu;0;L;00D5 0304;;;;N;;;;022D;
+022D;LATIN SMALL LETTER O WITH TILDE AND MACRON;Ll;0;L;00F5 0304;;;;N;;;022C;;022C
+022E;LATIN CAPITAL LETTER O WITH DOT ABOVE;Lu;0;L;004F 0307;;;;N;;;;022F;
+022F;LATIN SMALL LETTER O WITH DOT ABOVE;Ll;0;L;006F 0307;;;;N;;;022E;;022E
+0230;LATIN CAPITAL LETTER O WITH DOT ABOVE AND MACRON;Lu;0;L;022E 0304;;;;N;;;;0231;
+0231;LATIN SMALL LETTER O WITH DOT ABOVE AND MACRON;Ll;0;L;022F 0304;;;;N;;;0230;;0230
+0232;LATIN CAPITAL LETTER Y WITH MACRON;Lu;0;L;0059 0304;;;;N;;;;0233;
+0233;LATIN SMALL LETTER Y WITH MACRON;Ll;0;L;0079 0304;;;;N;;;0232;;0232
+0234;LATIN SMALL LETTER L WITH CURL;Ll;0;L;;;;;N;;;;;
+0235;LATIN SMALL LETTER N WITH CURL;Ll;0;L;;;;;N;;;;;
+0236;LATIN SMALL LETTER T WITH CURL;Ll;0;L;;;;;N;;;;;
+0237;LATIN SMALL LETTER DOTLESS J;Ll;0;L;;;;;N;;;;;
+0238;LATIN SMALL LETTER DB DIGRAPH;Ll;0;L;;;;;N;;;;;
+0239;LATIN SMALL LETTER QP DIGRAPH;Ll;0;L;;;;;N;;;;;
+023A;LATIN CAPITAL LETTER A WITH STROKE;Lu;0;L;;;;;N;;;;2C65;
+023B;LATIN CAPITAL LETTER C WITH STROKE;Lu;0;L;;;;;N;;;;023C;
+023C;LATIN SMALL LETTER C WITH STROKE;Ll;0;L;;;;;N;;;023B;;023B
+023D;LATIN CAPITAL LETTER L WITH BAR;Lu;0;L;;;;;N;;;;019A;
+023E;LATIN CAPITAL LETTER T WITH DIAGONAL STROKE;Lu;0;L;;;;;N;;;;2C66;
+023F;LATIN SMALL LETTER S WITH SWASH TAIL;Ll;0;L;;;;;N;;;2C7E;;2C7E
+0240;LATIN SMALL LETTER Z WITH SWASH TAIL;Ll;0;L;;;;;N;;;2C7F;;2C7F
+0241;LATIN CAPITAL LETTER GLOTTAL STOP;Lu;0;L;;;;;N;;;;0242;
+0242;LATIN SMALL LETTER GLOTTAL STOP;Ll;0;L;;;;;N;;;0241;;0241
+0243;LATIN CAPITAL LETTER B WITH STROKE;Lu;0;L;;;;;N;;;;0180;
+0244;LATIN CAPITAL LETTER U BAR;Lu;0;L;;;;;N;;;;0289;
+0245;LATIN CAPITAL LETTER TURNED V;Lu;0;L;;;;;N;;;;028C;
+0246;LATIN CAPITAL LETTER E WITH STROKE;Lu;0;L;;;;;N;;;;0247;
+0247;LATIN SMALL LETTER E WITH STROKE;Ll;0;L;;;;;N;;;0246;;0246
+0248;LATIN CAPITAL LETTER J WITH STROKE;Lu;0;L;;;;;N;;;;0249;
+0249;LATIN SMALL LETTER J WITH STROKE;Ll;0;L;;;;;N;;;0248;;0248
+024A;LATIN CAPITAL LETTER SMALL Q WITH HOOK TAIL;Lu;0;L;;;;;N;;;;024B;
+024B;LATIN SMALL LETTER Q WITH HOOK TAIL;Ll;0;L;;;;;N;;;024A;;024A
+024C;LATIN CAPITAL LETTER R WITH STROKE;Lu;0;L;;;;;N;;;;024D;
+024D;LATIN SMALL LETTER R WITH STROKE;Ll;0;L;;;;;N;;;024C;;024C
+024E;LATIN CAPITAL LETTER Y WITH STROKE;Lu;0;L;;;;;N;;;;024F;
+024F;LATIN SMALL LETTER Y WITH STROKE;Ll;0;L;;;;;N;;;024E;;024E
+0250;LATIN SMALL LETTER TURNED A;Ll;0;L;;;;;N;;;2C6F;;2C6F
+0251;LATIN SMALL LETTER ALPHA;Ll;0;L;;;;;N;LATIN SMALL LETTER SCRIPT A;;2C6D;;2C6D
+0252;LATIN SMALL LETTER TURNED ALPHA;Ll;0;L;;;;;N;LATIN SMALL LETTER TURNED SCRIPT A;;2C70;;2C70
+0253;LATIN SMALL LETTER B WITH HOOK;Ll;0;L;;;;;N;LATIN SMALL LETTER B HOOK;;0181;;0181
+0254;LATIN SMALL LETTER OPEN O;Ll;0;L;;;;;N;;;0186;;0186
+0255;LATIN SMALL LETTER C WITH CURL;Ll;0;L;;;;;N;LATIN SMALL LETTER C CURL;;;;
+0256;LATIN SMALL LETTER D WITH TAIL;Ll;0;L;;;;;N;LATIN SMALL LETTER D RETROFLEX HOOK;;0189;;0189
+0257;LATIN SMALL LETTER D WITH HOOK;Ll;0;L;;;;;N;LATIN SMALL LETTER D HOOK;;018A;;018A
+0258;LATIN SMALL LETTER REVERSED E;Ll;0;L;;;;;N;;;;;
+0259;LATIN SMALL LETTER SCHWA;Ll;0;L;;;;;N;;;018F;;018F
+025A;LATIN SMALL LETTER SCHWA WITH HOOK;Ll;0;L;;;;;N;LATIN SMALL LETTER SCHWA HOOK;;;;
+025B;LATIN SMALL LETTER OPEN E;Ll;0;L;;;;;N;LATIN SMALL LETTER EPSILON;;0190;;0190
+025C;LATIN SMALL LETTER REVERSED OPEN E;Ll;0;L;;;;;N;LATIN SMALL LETTER REVERSED EPSILON;;;;
+025D;LATIN SMALL LETTER REVERSED OPEN E WITH HOOK;Ll;0;L;;;;;N;LATIN SMALL LETTER REVERSED EPSILON HOOK;;;;
+025E;LATIN SMALL LETTER CLOSED REVERSED OPEN E;Ll;0;L;;;;;N;LATIN SMALL LETTER CLOSED REVERSED EPSILON;;;;
+025F;LATIN SMALL LETTER DOTLESS J WITH STROKE;Ll;0;L;;;;;N;LATIN SMALL LETTER DOTLESS J BAR;;;;
+0260;LATIN SMALL LETTER G WITH HOOK;Ll;0;L;;;;;N;LATIN SMALL LETTER G HOOK;;0193;;0193
+0261;LATIN SMALL LETTER SCRIPT G;Ll;0;L;;;;;N;;;;;
+0262;LATIN LETTER SMALL CAPITAL G;Ll;0;L;;;;;N;;;;;
+0263;LATIN SMALL LETTER GAMMA;Ll;0;L;;;;;N;;;0194;;0194
+0264;LATIN SMALL LETTER RAMS HORN;Ll;0;L;;;;;N;LATIN SMALL LETTER BABY GAMMA;;;;
+0265;LATIN SMALL LETTER TURNED H;Ll;0;L;;;;;N;;;A78D;;A78D
+0266;LATIN SMALL LETTER H WITH HOOK;Ll;0;L;;;;;N;LATIN SMALL LETTER H HOOK;;A7AA;;A7AA
+0267;LATIN SMALL LETTER HENG WITH HOOK;Ll;0;L;;;;;N;LATIN SMALL LETTER HENG HOOK;;;;
+0268;LATIN SMALL LETTER I WITH STROKE;Ll;0;L;;;;;N;LATIN SMALL LETTER BARRED I;;0197;;0197
+0269;LATIN SMALL LETTER IOTA;Ll;0;L;;;;;N;;;0196;;0196
+026A;LATIN LETTER SMALL CAPITAL I;Ll;0;L;;;;;N;;;;;
+026B;LATIN SMALL LETTER L WITH MIDDLE TILDE;Ll;0;L;;;;;N;;;2C62;;2C62
+026C;LATIN SMALL LETTER L WITH BELT;Ll;0;L;;;;;N;LATIN SMALL LETTER L BELT;;;;
+026D;LATIN SMALL LETTER L WITH RETROFLEX HOOK;Ll;0;L;;;;;N;LATIN SMALL LETTER L RETROFLEX HOOK;;;;
+026E;LATIN SMALL LETTER LEZH;Ll;0;L;;;;;N;LATIN SMALL LETTER L YOGH;;;;
+026F;LATIN SMALL LETTER TURNED M;Ll;0;L;;;;;N;;;019C;;019C
+0270;LATIN SMALL LETTER TURNED M WITH LONG LEG;Ll;0;L;;;;;N;;;;;
+0271;LATIN SMALL LETTER M WITH HOOK;Ll;0;L;;;;;N;LATIN SMALL LETTER M HOOK;;2C6E;;2C6E
+0272;LATIN SMALL LETTER N WITH LEFT HOOK;Ll;0;L;;;;;N;LATIN SMALL LETTER N HOOK;;019D;;019D
+0273;LATIN SMALL LETTER N WITH RETROFLEX HOOK;Ll;0;L;;;;;N;LATIN SMALL LETTER N RETROFLEX HOOK;;;;
+0274;LATIN LETTER SMALL CAPITAL N;Ll;0;L;;;;;N;;;;;
+0275;LATIN SMALL LETTER BARRED O;Ll;0;L;;;;;N;;;019F;;019F
+0276;LATIN LETTER SMALL CAPITAL OE;Ll;0;L;;;;;N;LATIN LETTER SMALL CAPITAL O E;;;;
+0277;LATIN SMALL LETTER CLOSED OMEGA;Ll;0;L;;;;;N;;;;;
+0278;LATIN SMALL LETTER PHI;Ll;0;L;;;;;N;;;;;
+0279;LATIN SMALL LETTER TURNED R;Ll;0;L;;;;;N;;;;;
+027A;LATIN SMALL LETTER TURNED R WITH LONG LEG;Ll;0;L;;;;;N;;;;;
+027B;LATIN SMALL LETTER TURNED R WITH HOOK;Ll;0;L;;;;;N;LATIN SMALL LETTER TURNED R HOOK;;;;
+027C;LATIN SMALL LETTER R WITH LONG LEG;Ll;0;L;;;;;N;;;;;
+027D;LATIN SMALL LETTER R WITH TAIL;Ll;0;L;;;;;N;LATIN SMALL LETTER R HOOK;;2C64;;2C64
+027E;LATIN SMALL LETTER R WITH FISHHOOK;Ll;0;L;;;;;N;LATIN SMALL LETTER FISHHOOK R;;;;
+027F;LATIN SMALL LETTER REVERSED R WITH FISHHOOK;Ll;0;L;;;;;N;LATIN SMALL LETTER REVERSED FISHHOOK R;;;;
+0280;LATIN LETTER SMALL CAPITAL R;Ll;0;L;;;;;N;;;01A6;;01A6
+0281;LATIN LETTER SMALL CAPITAL INVERTED R;Ll;0;L;;;;;N;;;;;
+0282;LATIN SMALL LETTER S WITH HOOK;Ll;0;L;;;;;N;LATIN SMALL LETTER S HOOK;;;;
+0283;LATIN SMALL LETTER ESH;Ll;0;L;;;;;N;;;01A9;;01A9
+0284;LATIN SMALL LETTER DOTLESS J WITH STROKE AND HOOK;Ll;0;L;;;;;N;LATIN SMALL LETTER DOTLESS J BAR HOOK;;;;
+0285;LATIN SMALL LETTER SQUAT REVERSED ESH;Ll;0;L;;;;;N;;;;;
+0286;LATIN SMALL LETTER ESH WITH CURL;Ll;0;L;;;;;N;LATIN SMALL LETTER ESH CURL;;;;
+0287;LATIN SMALL LETTER TURNED T;Ll;0;L;;;;;N;;;;;
+0288;LATIN SMALL LETTER T WITH RETROFLEX HOOK;Ll;0;L;;;;;N;LATIN SMALL LETTER T RETROFLEX HOOK;;01AE;;01AE
+0289;LATIN SMALL LETTER U BAR;Ll;0;L;;;;;N;;;0244;;0244
+028A;LATIN SMALL LETTER UPSILON;Ll;0;L;;;;;N;;;01B1;;01B1
+028B;LATIN SMALL LETTER V WITH HOOK;Ll;0;L;;;;;N;LATIN SMALL LETTER SCRIPT V;;01B2;;01B2
+028C;LATIN SMALL LETTER TURNED V;Ll;0;L;;;;;N;;;0245;;0245
+028D;LATIN SMALL LETTER TURNED W;Ll;0;L;;;;;N;;;;;
+028E;LATIN SMALL LETTER TURNED Y;Ll;0;L;;;;;N;;;;;
+028F;LATIN LETTER SMALL CAPITAL Y;Ll;0;L;;;;;N;;;;;
+0290;LATIN SMALL LETTER Z WITH RETROFLEX HOOK;Ll;0;L;;;;;N;LATIN SMALL LETTER Z RETROFLEX HOOK;;;;
+0291;LATIN SMALL LETTER Z WITH CURL;Ll;0;L;;;;;N;LATIN SMALL LETTER Z CURL;;;;
+0292;LATIN SMALL LETTER EZH;Ll;0;L;;;;;N;LATIN SMALL LETTER YOGH;;01B7;;01B7
+0293;LATIN SMALL LETTER EZH WITH CURL;Ll;0;L;;;;;N;LATIN SMALL LETTER YOGH CURL;;;;
+0294;LATIN LETTER GLOTTAL STOP;Lo;0;L;;;;;N;;;;;
+0295;LATIN LETTER PHARYNGEAL VOICED FRICATIVE;Ll;0;L;;;;;N;LATIN LETTER REVERSED GLOTTAL STOP;;;;
+0296;LATIN LETTER INVERTED GLOTTAL STOP;Ll;0;L;;;;;N;;;;;
+0297;LATIN LETTER STRETCHED C;Ll;0;L;;;;;N;;;;;
+0298;LATIN LETTER BILABIAL CLICK;Ll;0;L;;;;;N;LATIN LETTER BULLSEYE;;;;
+0299;LATIN LETTER SMALL CAPITAL B;Ll;0;L;;;;;N;;;;;
+029A;LATIN SMALL LETTER CLOSED OPEN E;Ll;0;L;;;;;N;LATIN SMALL LETTER CLOSED EPSILON;;;;
+029B;LATIN LETTER SMALL CAPITAL G WITH HOOK;Ll;0;L;;;;;N;LATIN LETTER SMALL CAPITAL G HOOK;;;;
+029C;LATIN LETTER SMALL CAPITAL H;Ll;0;L;;;;;N;;;;;
+029D;LATIN SMALL LETTER J WITH CROSSED-TAIL;Ll;0;L;;;;;N;LATIN SMALL LETTER CROSSED-TAIL J;;;;
+029E;LATIN SMALL LETTER TURNED K;Ll;0;L;;;;;N;;;;;
+029F;LATIN LETTER SMALL CAPITAL L;Ll;0;L;;;;;N;;;;;
+02A0;LATIN SMALL LETTER Q WITH HOOK;Ll;0;L;;;;;N;LATIN SMALL LETTER Q HOOK;;;;
+02A1;LATIN LETTER GLOTTAL STOP WITH STROKE;Ll;0;L;;;;;N;LATIN LETTER GLOTTAL STOP BAR;;;;
+02A2;LATIN LETTER REVERSED GLOTTAL STOP WITH STROKE;Ll;0;L;;;;;N;LATIN LETTER REVERSED GLOTTAL STOP BAR;;;;
+02A3;LATIN SMALL LETTER DZ DIGRAPH;Ll;0;L;;;;;N;LATIN SMALL LETTER D Z;;;;
+02A4;LATIN SMALL LETTER DEZH DIGRAPH;Ll;0;L;;;;;N;LATIN SMALL LETTER D YOGH;;;;
+02A5;LATIN SMALL LETTER DZ DIGRAPH WITH CURL;Ll;0;L;;;;;N;LATIN SMALL LETTER D Z CURL;;;;
+02A6;LATIN SMALL LETTER TS DIGRAPH;Ll;0;L;;;;;N;LATIN SMALL LETTER T S;;;;
+02A7;LATIN SMALL LETTER TESH DIGRAPH;Ll;0;L;;;;;N;LATIN SMALL LETTER T ESH;;;;
+02A8;LATIN SMALL LETTER TC DIGRAPH WITH CURL;Ll;0;L;;;;;N;LATIN SMALL LETTER T C CURL;;;;
+02A9;LATIN SMALL LETTER FENG DIGRAPH;Ll;0;L;;;;;N;;;;;
+02AA;LATIN SMALL LETTER LS DIGRAPH;Ll;0;L;;;;;N;;;;;
+02AB;LATIN SMALL LETTER LZ DIGRAPH;Ll;0;L;;;;;N;;;;;
+02AC;LATIN LETTER BILABIAL PERCUSSIVE;Ll;0;L;;;;;N;;;;;
+02AD;LATIN LETTER BIDENTAL PERCUSSIVE;Ll;0;L;;;;;N;;;;;
+02AE;LATIN SMALL LETTER TURNED H WITH FISHHOOK;Ll;0;L;;;;;N;;;;;
+02AF;LATIN SMALL LETTER TURNED H WITH FISHHOOK AND TAIL;Ll;0;L;;;;;N;;;;;
+02B0;MODIFIER LETTER SMALL H;Lm;0;L;<super> 0068;;;;N;;;;;
+02B1;MODIFIER LETTER SMALL H WITH HOOK;Lm;0;L;<super> 0266;;;;N;MODIFIER LETTER SMALL H HOOK;;;;
+02B2;MODIFIER LETTER SMALL J;Lm;0;L;<super> 006A;;;;N;;;;;
+02B3;MODIFIER LETTER SMALL R;Lm;0;L;<super> 0072;;;;N;;;;;
+02B4;MODIFIER LETTER SMALL TURNED R;Lm;0;L;<super> 0279;;;;N;;;;;
+02B5;MODIFIER LETTER SMALL TURNED R WITH HOOK;Lm;0;L;<super> 027B;;;;N;MODIFIER LETTER SMALL TURNED R HOOK;;;;
+02B6;MODIFIER LETTER SMALL CAPITAL INVERTED R;Lm;0;L;<super> 0281;;;;N;;;;;
+02B7;MODIFIER LETTER SMALL W;Lm;0;L;<super> 0077;;;;N;;;;;
+02B8;MODIFIER LETTER SMALL Y;Lm;0;L;<super> 0079;;;;N;;;;;
+02B9;MODIFIER LETTER PRIME;Lm;0;ON;;;;;N;;;;;
+02BA;MODIFIER LETTER DOUBLE PRIME;Lm;0;ON;;;;;N;;;;;
+02BB;MODIFIER LETTER TURNED COMMA;Lm;0;L;;;;;N;;;;;
+02BC;MODIFIER LETTER APOSTROPHE;Lm;0;L;;;;;N;;;;;
+02BD;MODIFIER LETTER REVERSED COMMA;Lm;0;L;;;;;N;;;;;
+02BE;MODIFIER LETTER RIGHT HALF RING;Lm;0;L;;;;;N;;;;;
+02BF;MODIFIER LETTER LEFT HALF RING;Lm;0;L;;;;;N;;;;;
+02C0;MODIFIER LETTER GLOTTAL STOP;Lm;0;L;;;;;N;;;;;
+02C1;MODIFIER LETTER REVERSED GLOTTAL STOP;Lm;0;L;;;;;N;;;;;
+02C2;MODIFIER LETTER LEFT ARROWHEAD;Sk;0;ON;;;;;N;;;;;
+02C3;MODIFIER LETTER RIGHT ARROWHEAD;Sk;0;ON;;;;;N;;;;;
+02C4;MODIFIER LETTER UP ARROWHEAD;Sk;0;ON;;;;;N;;;;;
+02C5;MODIFIER LETTER DOWN ARROWHEAD;Sk;0;ON;;;;;N;;;;;
+02C6;MODIFIER LETTER CIRCUMFLEX ACCENT;Lm;0;ON;;;;;N;MODIFIER LETTER CIRCUMFLEX;;;;
+02C7;CARON;Lm;0;ON;;;;;N;MODIFIER LETTER HACEK;;;;
+02C8;MODIFIER LETTER VERTICAL LINE;Lm;0;ON;;;;;N;;;;;
+02C9;MODIFIER LETTER MACRON;Lm;0;ON;;;;;N;;;;;
+02CA;MODIFIER LETTER ACUTE ACCENT;Lm;0;ON;;;;;N;MODIFIER LETTER ACUTE;;;;
+02CB;MODIFIER LETTER GRAVE ACCENT;Lm;0;ON;;;;;N;MODIFIER LETTER GRAVE;;;;
+02CC;MODIFIER LETTER LOW VERTICAL LINE;Lm;0;ON;;;;;N;;;;;
+02CD;MODIFIER LETTER LOW MACRON;Lm;0;ON;;;;;N;;;;;
+02CE;MODIFIER LETTER LOW GRAVE ACCENT;Lm;0;ON;;;;;N;MODIFIER LETTER LOW GRAVE;;;;
+02CF;MODIFIER LETTER LOW ACUTE ACCENT;Lm;0;ON;;;;;N;MODIFIER LETTER LOW ACUTE;;;;
+02D0;MODIFIER LETTER TRIANGULAR COLON;Lm;0;L;;;;;N;;;;;
+02D1;MODIFIER LETTER HALF TRIANGULAR COLON;Lm;0;L;;;;;N;;;;;
+02D2;MODIFIER LETTER CENTRED RIGHT HALF RING;Sk;0;ON;;;;;N;MODIFIER LETTER CENTERED RIGHT HALF RING;;;;
+02D3;MODIFIER LETTER CENTRED LEFT HALF RING;Sk;0;ON;;;;;N;MODIFIER LETTER CENTERED LEFT HALF RING;;;;
+02D4;MODIFIER LETTER UP TACK;Sk;0;ON;;;;;N;;;;;
+02D5;MODIFIER LETTER DOWN TACK;Sk;0;ON;;;;;N;;;;;
+02D6;MODIFIER LETTER PLUS SIGN;Sk;0;ON;;;;;N;;;;;
+02D7;MODIFIER LETTER MINUS SIGN;Sk;0;ON;;;;;N;;;;;
+02D8;BREVE;Sk;0;ON;<compat> 0020 0306;;;;N;SPACING BREVE;;;;
+02D9;DOT ABOVE;Sk;0;ON;<compat> 0020 0307;;;;N;SPACING DOT ABOVE;;;;
+02DA;RING ABOVE;Sk;0;ON;<compat> 0020 030A;;;;N;SPACING RING ABOVE;;;;
+02DB;OGONEK;Sk;0;ON;<compat> 0020 0328;;;;N;SPACING OGONEK;;;;
+02DC;SMALL TILDE;Sk;0;ON;<compat> 0020 0303;;;;N;SPACING TILDE;;;;
+02DD;DOUBLE ACUTE ACCENT;Sk;0;ON;<compat> 0020 030B;;;;N;SPACING DOUBLE ACUTE;;;;
+02DE;MODIFIER LETTER RHOTIC HOOK;Sk;0;ON;;;;;N;;;;;
+02DF;MODIFIER LETTER CROSS ACCENT;Sk;0;ON;;;;;N;;;;;
+02E0;MODIFIER LETTER SMALL GAMMA;Lm;0;L;<super> 0263;;;;N;;;;;
+02E1;MODIFIER LETTER SMALL L;Lm;0;L;<super> 006C;;;;N;;;;;
+02E2;MODIFIER LETTER SMALL S;Lm;0;L;<super> 0073;;;;N;;;;;
+02E3;MODIFIER LETTER SMALL X;Lm;0;L;<super> 0078;;;;N;;;;;
+02E4;MODIFIER LETTER SMALL REVERSED GLOTTAL STOP;Lm;0;L;<super> 0295;;;;N;;;;;
+02E5;MODIFIER LETTER EXTRA-HIGH TONE BAR;Sk;0;ON;;;;;N;;;;;
+02E6;MODIFIER LETTER HIGH TONE BAR;Sk;0;ON;;;;;N;;;;;
+02E7;MODIFIER LETTER MID TONE BAR;Sk;0;ON;;;;;N;;;;;
+02E8;MODIFIER LETTER LOW TONE BAR;Sk;0;ON;;;;;N;;;;;
+02E9;MODIFIER LETTER EXTRA-LOW TONE BAR;Sk;0;ON;;;;;N;;;;;
+02EA;MODIFIER LETTER YIN DEPARTING TONE MARK;Sk;0;ON;;;;;N;;;;;
+02EB;MODIFIER LETTER YANG DEPARTING TONE MARK;Sk;0;ON;;;;;N;;;;;
+02EC;MODIFIER LETTER VOICING;Lm;0;ON;;;;;N;;;;;
+02ED;MODIFIER LETTER UNASPIRATED;Sk;0;ON;;;;;N;;;;;
+02EE;MODIFIER LETTER DOUBLE APOSTROPHE;Lm;0;L;;;;;N;;;;;
+02EF;MODIFIER LETTER LOW DOWN ARROWHEAD;Sk;0;ON;;;;;N;;;;;
+02F0;MODIFIER LETTER LOW UP ARROWHEAD;Sk;0;ON;;;;;N;;;;;
+02F1;MODIFIER LETTER LOW LEFT ARROWHEAD;Sk;0;ON;;;;;N;;;;;
+02F2;MODIFIER LETTER LOW RIGHT ARROWHEAD;Sk;0;ON;;;;;N;;;;;
+02F3;MODIFIER LETTER LOW RING;Sk;0;ON;;;;;N;;;;;
+02F4;MODIFIER LETTER MIDDLE GRAVE ACCENT;Sk;0;ON;;;;;N;;;;;
+02F5;MODIFIER LETTER MIDDLE DOUBLE GRAVE ACCENT;Sk;0;ON;;;;;N;;;;;
+02F6;MODIFIER LETTER MIDDLE DOUBLE ACUTE ACCENT;Sk;0;ON;;;;;N;;;;;
+02F7;MODIFIER LETTER LOW TILDE;Sk;0;ON;;;;;N;;;;;
+02F8;MODIFIER LETTER RAISED COLON;Sk;0;ON;;;;;N;;;;;
+02F9;MODIFIER LETTER BEGIN HIGH TONE;Sk;0;ON;;;;;N;;;;;
+02FA;MODIFIER LETTER END HIGH TONE;Sk;0;ON;;;;;N;;;;;
+02FB;MODIFIER LETTER BEGIN LOW TONE;Sk;0;ON;;;;;N;;;;;
+02FC;MODIFIER LETTER END LOW TONE;Sk;0;ON;;;;;N;;;;;
+02FD;MODIFIER LETTER SHELF;Sk;0;ON;;;;;N;;;;;
+02FE;MODIFIER LETTER OPEN SHELF;Sk;0;ON;;;;;N;;;;;
+02FF;MODIFIER LETTER LOW LEFT ARROW;Sk;0;ON;;;;;N;;;;;
+0300;COMBINING GRAVE ACCENT;Mn;230;NSM;;;;;N;NON-SPACING GRAVE;;;;
+0301;COMBINING ACUTE ACCENT;Mn;230;NSM;;;;;N;NON-SPACING ACUTE;;;;
+0302;COMBINING CIRCUMFLEX ACCENT;Mn;230;NSM;;;;;N;NON-SPACING CIRCUMFLEX;;;;
+0303;COMBINING TILDE;Mn;230;NSM;;;;;N;NON-SPACING TILDE;;;;
+0304;COMBINING MACRON;Mn;230;NSM;;;;;N;NON-SPACING MACRON;;;;
+0305;COMBINING OVERLINE;Mn;230;NSM;;;;;N;NON-SPACING OVERSCORE;;;;
+0306;COMBINING BREVE;Mn;230;NSM;;;;;N;NON-SPACING BREVE;;;;
+0307;COMBINING DOT ABOVE;Mn;230;NSM;;;;;N;NON-SPACING DOT ABOVE;;;;
+0308;COMBINING DIAERESIS;Mn;230;NSM;;;;;N;NON-SPACING DIAERESIS;;;;
+0309;COMBINING HOOK ABOVE;Mn;230;NSM;;;;;N;NON-SPACING HOOK ABOVE;;;;
+030A;COMBINING RING ABOVE;Mn;230;NSM;;;;;N;NON-SPACING RING ABOVE;;;;
+030B;COMBINING DOUBLE ACUTE ACCENT;Mn;230;NSM;;;;;N;NON-SPACING DOUBLE ACUTE;;;;
+030C;COMBINING CARON;Mn;230;NSM;;;;;N;NON-SPACING HACEK;;;;
+030D;COMBINING VERTICAL LINE ABOVE;Mn;230;NSM;;;;;N;NON-SPACING VERTICAL LINE ABOVE;;;;
+030E;COMBINING DOUBLE VERTICAL LINE ABOVE;Mn;230;NSM;;;;;N;NON-SPACING DOUBLE VERTICAL LINE ABOVE;;;;
+030F;COMBINING DOUBLE GRAVE ACCENT;Mn;230;NSM;;;;;N;NON-SPACING DOUBLE GRAVE;;;;
+0310;COMBINING CANDRABINDU;Mn;230;NSM;;;;;N;NON-SPACING CANDRABINDU;;;;
+0311;COMBINING INVERTED BREVE;Mn;230;NSM;;;;;N;NON-SPACING INVERTED BREVE;;;;
+0312;COMBINING TURNED COMMA ABOVE;Mn;230;NSM;;;;;N;NON-SPACING TURNED COMMA ABOVE;;;;
+0313;COMBINING COMMA ABOVE;Mn;230;NSM;;;;;N;NON-SPACING COMMA ABOVE;;;;
+0314;COMBINING REVERSED COMMA ABOVE;Mn;230;NSM;;;;;N;NON-SPACING REVERSED COMMA ABOVE;;;;
+0315;COMBINING COMMA ABOVE RIGHT;Mn;232;NSM;;;;;N;NON-SPACING COMMA ABOVE RIGHT;;;;
+0316;COMBINING GRAVE ACCENT BELOW;Mn;220;NSM;;;;;N;NON-SPACING GRAVE BELOW;;;;
+0317;COMBINING ACUTE ACCENT BELOW;Mn;220;NSM;;;;;N;NON-SPACING ACUTE BELOW;;;;
+0318;COMBINING LEFT TACK BELOW;Mn;220;NSM;;;;;N;NON-SPACING LEFT TACK BELOW;;;;
+0319;COMBINING RIGHT TACK BELOW;Mn;220;NSM;;;;;N;NON-SPACING RIGHT TACK BELOW;;;;
+031A;COMBINING LEFT ANGLE ABOVE;Mn;232;NSM;;;;;N;NON-SPACING LEFT ANGLE ABOVE;;;;
+031B;COMBINING HORN;Mn;216;NSM;;;;;N;NON-SPACING HORN;;;;
+031C;COMBINING LEFT HALF RING BELOW;Mn;220;NSM;;;;;N;NON-SPACING LEFT HALF RING BELOW;;;;
+031D;COMBINING UP TACK BELOW;Mn;220;NSM;;;;;N;NON-SPACING UP TACK BELOW;;;;
+031E;COMBINING DOWN TACK BELOW;Mn;220;NSM;;;;;N;NON-SPACING DOWN TACK BELOW;;;;
+031F;COMBINING PLUS SIGN BELOW;Mn;220;NSM;;;;;N;NON-SPACING PLUS SIGN BELOW;;;;
+0320;COMBINING MINUS SIGN BELOW;Mn;220;NSM;;;;;N;NON-SPACING MINUS SIGN BELOW;;;;
+0321;COMBINING PALATALIZED HOOK BELOW;Mn;202;NSM;;;;;N;NON-SPACING PALATALIZED HOOK BELOW;;;;
+0322;COMBINING RETROFLEX HOOK BELOW;Mn;202;NSM;;;;;N;NON-SPACING RETROFLEX HOOK BELOW;;;;
+0323;COMBINING DOT BELOW;Mn;220;NSM;;;;;N;NON-SPACING DOT BELOW;;;;
+0324;COMBINING DIAERESIS BELOW;Mn;220;NSM;;;;;N;NON-SPACING DOUBLE DOT BELOW;;;;
+0325;COMBINING RING BELOW;Mn;220;NSM;;;;;N;NON-SPACING RING BELOW;;;;
+0326;COMBINING COMMA BELOW;Mn;220;NSM;;;;;N;NON-SPACING COMMA BELOW;;;;
+0327;COMBINING CEDILLA;Mn;202;NSM;;;;;N;NON-SPACING CEDILLA;;;;
+0328;COMBINING OGONEK;Mn;202;NSM;;;;;N;NON-SPACING OGONEK;;;;
+0329;COMBINING VERTICAL LINE BELOW;Mn;220;NSM;;;;;N;NON-SPACING VERTICAL LINE BELOW;;;;
+032A;COMBINING BRIDGE BELOW;Mn;220;NSM;;;;;N;NON-SPACING BRIDGE BELOW;;;;
+032B;COMBINING INVERTED DOUBLE ARCH BELOW;Mn;220;NSM;;;;;N;NON-SPACING INVERTED DOUBLE ARCH BELOW;;;;
+032C;COMBINING CARON BELOW;Mn;220;NSM;;;;;N;NON-SPACING HACEK BELOW;;;;
+032D;COMBINING CIRCUMFLEX ACCENT BELOW;Mn;220;NSM;;;;;N;NON-SPACING CIRCUMFLEX BELOW;;;;
+032E;COMBINING BREVE BELOW;Mn;220;NSM;;;;;N;NON-SPACING BREVE BELOW;;;;
+032F;COMBINING INVERTED BREVE BELOW;Mn;220;NSM;;;;;N;NON-SPACING INVERTED BREVE BELOW;;;;
+0330;COMBINING TILDE BELOW;Mn;220;NSM;;;;;N;NON-SPACING TILDE BELOW;;;;
+0331;COMBINING MACRON BELOW;Mn;220;NSM;;;;;N;NON-SPACING MACRON BELOW;;;;
+0332;COMBINING LOW LINE;Mn;220;NSM;;;;;N;NON-SPACING UNDERSCORE;;;;
+0333;COMBINING DOUBLE LOW LINE;Mn;220;NSM;;;;;N;NON-SPACING DOUBLE UNDERSCORE;;;;
+0334;COMBINING TILDE OVERLAY;Mn;1;NSM;;;;;N;NON-SPACING TILDE OVERLAY;;;;
+0335;COMBINING SHORT STROKE OVERLAY;Mn;1;NSM;;;;;N;NON-SPACING SHORT BAR OVERLAY;;;;
+0336;COMBINING LONG STROKE OVERLAY;Mn;1;NSM;;;;;N;NON-SPACING LONG BAR OVERLAY;;;;
+0337;COMBINING SHORT SOLIDUS OVERLAY;Mn;1;NSM;;;;;N;NON-SPACING SHORT SLASH OVERLAY;;;;
+0338;COMBINING LONG SOLIDUS OVERLAY;Mn;1;NSM;;;;;N;NON-SPACING LONG SLASH OVERLAY;;;;
+0339;COMBINING RIGHT HALF RING BELOW;Mn;220;NSM;;;;;N;NON-SPACING RIGHT HALF RING BELOW;;;;
+033A;COMBINING INVERTED BRIDGE BELOW;Mn;220;NSM;;;;;N;NON-SPACING INVERTED BRIDGE BELOW;;;;
+033B;COMBINING SQUARE BELOW;Mn;220;NSM;;;;;N;NON-SPACING SQUARE BELOW;;;;
+033C;COMBINING SEAGULL BELOW;Mn;220;NSM;;;;;N;NON-SPACING SEAGULL BELOW;;;;
+033D;COMBINING X ABOVE;Mn;230;NSM;;;;;N;NON-SPACING X ABOVE;;;;
+033E;COMBINING VERTICAL TILDE;Mn;230;NSM;;;;;N;NON-SPACING VERTICAL TILDE;;;;
+033F;COMBINING DOUBLE OVERLINE;Mn;230;NSM;;;;;N;NON-SPACING DOUBLE OVERSCORE;;;;
+0340;COMBINING GRAVE TONE MARK;Mn;230;NSM;0300;;;;N;NON-SPACING GRAVE TONE MARK;;;;
+0341;COMBINING ACUTE TONE MARK;Mn;230;NSM;0301;;;;N;NON-SPACING ACUTE TONE MARK;;;;
+0342;COMBINING GREEK PERISPOMENI;Mn;230;NSM;;;;;N;;;;;
+0343;COMBINING GREEK KORONIS;Mn;230;NSM;0313;;;;N;;;;;
+0344;COMBINING GREEK DIALYTIKA TONOS;Mn;230;NSM;0308 0301;;;;N;GREEK NON-SPACING DIAERESIS TONOS;;;;
+0345;COMBINING GREEK YPOGEGRAMMENI;Mn;240;NSM;;;;;N;GREEK NON-SPACING IOTA BELOW;;0399;;0399
+0346;COMBINING BRIDGE ABOVE;Mn;230;NSM;;;;;N;;;;;
+0347;COMBINING EQUALS SIGN BELOW;Mn;220;NSM;;;;;N;;;;;
+0348;COMBINING DOUBLE VERTICAL LINE BELOW;Mn;220;NSM;;;;;N;;;;;
+0349;COMBINING LEFT ANGLE BELOW;Mn;220;NSM;;;;;N;;;;;
+034A;COMBINING NOT TILDE ABOVE;Mn;230;NSM;;;;;N;;;;;
+034B;COMBINING HOMOTHETIC ABOVE;Mn;230;NSM;;;;;N;;;;;
+034C;COMBINING ALMOST EQUAL TO ABOVE;Mn;230;NSM;;;;;N;;;;;
+034D;COMBINING LEFT RIGHT ARROW BELOW;Mn;220;NSM;;;;;N;;;;;
+034E;COMBINING UPWARDS ARROW BELOW;Mn;220;NSM;;;;;N;;;;;
+034F;COMBINING GRAPHEME JOINER;Mn;0;NSM;;;;;N;;;;;
+0350;COMBINING RIGHT ARROWHEAD ABOVE;Mn;230;NSM;;;;;N;;;;;
+0351;COMBINING LEFT HALF RING ABOVE;Mn;230;NSM;;;;;N;;;;;
+0352;COMBINING FERMATA;Mn;230;NSM;;;;;N;;;;;
+0353;COMBINING X BELOW;Mn;220;NSM;;;;;N;;;;;
+0354;COMBINING LEFT ARROWHEAD BELOW;Mn;220;NSM;;;;;N;;;;;
+0355;COMBINING RIGHT ARROWHEAD BELOW;Mn;220;NSM;;;;;N;;;;;
+0356;COMBINING RIGHT ARROWHEAD AND UP ARROWHEAD BELOW;Mn;220;NSM;;;;;N;;;;;
+0357;COMBINING RIGHT HALF RING ABOVE;Mn;230;NSM;;;;;N;;;;;
+0358;COMBINING DOT ABOVE RIGHT;Mn;232;NSM;;;;;N;;;;;
+0359;COMBINING ASTERISK BELOW;Mn;220;NSM;;;;;N;;;;;
+035A;COMBINING DOUBLE RING BELOW;Mn;220;NSM;;;;;N;;;;;
+035B;COMBINING ZIGZAG ABOVE;Mn;230;NSM;;;;;N;;;;;
+035C;COMBINING DOUBLE BREVE BELOW;Mn;233;NSM;;;;;N;;;;;
+035D;COMBINING DOUBLE BREVE;Mn;234;NSM;;;;;N;;;;;
+035E;COMBINING DOUBLE MACRON;Mn;234;NSM;;;;;N;;;;;
+035F;COMBINING DOUBLE MACRON BELOW;Mn;233;NSM;;;;;N;;;;;
+0360;COMBINING DOUBLE TILDE;Mn;234;NSM;;;;;N;;;;;
+0361;COMBINING DOUBLE INVERTED BREVE;Mn;234;NSM;;;;;N;;;;;
+0362;COMBINING DOUBLE RIGHTWARDS ARROW BELOW;Mn;233;NSM;;;;;N;;;;;
+0363;COMBINING LATIN SMALL LETTER A;Mn;230;NSM;;;;;N;;;;;
+0364;COMBINING LATIN SMALL LETTER E;Mn;230;NSM;;;;;N;;;;;
+0365;COMBINING LATIN SMALL LETTER I;Mn;230;NSM;;;;;N;;;;;
+0366;COMBINING LATIN SMALL LETTER O;Mn;230;NSM;;;;;N;;;;;
+0367;COMBINING LATIN SMALL LETTER U;Mn;230;NSM;;;;;N;;;;;
+0368;COMBINING LATIN SMALL LETTER C;Mn;230;NSM;;;;;N;;;;;
+0369;COMBINING LATIN SMALL LETTER D;Mn;230;NSM;;;;;N;;;;;
+036A;COMBINING LATIN SMALL LETTER H;Mn;230;NSM;;;;;N;;;;;
+036B;COMBINING LATIN SMALL LETTER M;Mn;230;NSM;;;;;N;;;;;
+036C;COMBINING LATIN SMALL LETTER R;Mn;230;NSM;;;;;N;;;;;
+036D;COMBINING LATIN SMALL LETTER T;Mn;230;NSM;;;;;N;;;;;
+036E;COMBINING LATIN SMALL LETTER V;Mn;230;NSM;;;;;N;;;;;
+036F;COMBINING LATIN SMALL LETTER X;Mn;230;NSM;;;;;N;;;;;
+0370;GREEK CAPITAL LETTER HETA;Lu;0;L;;;;;N;;;;0371;
+0371;GREEK SMALL LETTER HETA;Ll;0;L;;;;;N;;;0370;;0370
+0372;GREEK CAPITAL LETTER ARCHAIC SAMPI;Lu;0;L;;;;;N;;;;0373;
+0373;GREEK SMALL LETTER ARCHAIC SAMPI;Ll;0;L;;;;;N;;;0372;;0372
+0374;GREEK NUMERAL SIGN;Lm;0;ON;02B9;;;;N;GREEK UPPER NUMERAL SIGN;;;;
+0375;GREEK LOWER NUMERAL SIGN;Sk;0;ON;;;;;N;;;;;
+0376;GREEK CAPITAL LETTER PAMPHYLIAN DIGAMMA;Lu;0;L;;;;;N;;;;0377;
+0377;GREEK SMALL LETTER PAMPHYLIAN DIGAMMA;Ll;0;L;;;;;N;;;0376;;0376
+037A;GREEK YPOGEGRAMMENI;Lm;0;L;<compat> 0020 0345;;;;N;GREEK SPACING IOTA BELOW;;;;
+037B;GREEK SMALL REVERSED LUNATE SIGMA SYMBOL;Ll;0;L;;;;;N;;;03FD;;03FD
+037C;GREEK SMALL DOTTED LUNATE SIGMA SYMBOL;Ll;0;L;;;;;N;;;03FE;;03FE
+037D;GREEK SMALL REVERSED DOTTED LUNATE SIGMA SYMBOL;Ll;0;L;;;;;N;;;03FF;;03FF
+037E;GREEK QUESTION MARK;Po;0;ON;003B;;;;N;;;;;
+0384;GREEK TONOS;Sk;0;ON;<compat> 0020 0301;;;;N;GREEK SPACING TONOS;;;;
+0385;GREEK DIALYTIKA TONOS;Sk;0;ON;00A8 0301;;;;N;GREEK SPACING DIAERESIS TONOS;;;;
+0386;GREEK CAPITAL LETTER ALPHA WITH TONOS;Lu;0;L;0391 0301;;;;N;GREEK CAPITAL LETTER ALPHA TONOS;;;03AC;
+0387;GREEK ANO TELEIA;Po;0;ON;00B7;;;;N;;;;;
+0388;GREEK CAPITAL LETTER EPSILON WITH TONOS;Lu;0;L;0395 0301;;;;N;GREEK CAPITAL LETTER EPSILON TONOS;;;03AD;
+0389;GREEK CAPITAL LETTER ETA WITH TONOS;Lu;0;L;0397 0301;;;;N;GREEK CAPITAL LETTER ETA TONOS;;;03AE;
+038A;GREEK CAPITAL LETTER IOTA WITH TONOS;Lu;0;L;0399 0301;;;;N;GREEK CAPITAL LETTER IOTA TONOS;;;03AF;
+038C;GREEK CAPITAL LETTER OMICRON WITH TONOS;Lu;0;L;039F 0301;;;;N;GREEK CAPITAL LETTER OMICRON TONOS;;;03CC;
+038E;GREEK CAPITAL LETTER UPSILON WITH TONOS;Lu;0;L;03A5 0301;;;;N;GREEK CAPITAL LETTER UPSILON TONOS;;;03CD;
+038F;GREEK CAPITAL LETTER OMEGA WITH TONOS;Lu;0;L;03A9 0301;;;;N;GREEK CAPITAL LETTER OMEGA TONOS;;;03CE;
+0390;GREEK SMALL LETTER IOTA WITH DIALYTIKA AND TONOS;Ll;0;L;03CA 0301;;;;N;GREEK SMALL LETTER IOTA DIAERESIS TONOS;;;;
+0391;GREEK CAPITAL LETTER ALPHA;Lu;0;L;;;;;N;;;;03B1;
+0392;GREEK CAPITAL LETTER BETA;Lu;0;L;;;;;N;;;;03B2;
+0393;GREEK CAPITAL LETTER GAMMA;Lu;0;L;;;;;N;;;;03B3;
+0394;GREEK CAPITAL LETTER DELTA;Lu;0;L;;;;;N;;;;03B4;
+0395;GREEK CAPITAL LETTER EPSILON;Lu;0;L;;;;;N;;;;03B5;
+0396;GREEK CAPITAL LETTER ZETA;Lu;0;L;;;;;N;;;;03B6;
+0397;GREEK CAPITAL LETTER ETA;Lu;0;L;;;;;N;;;;03B7;
+0398;GREEK CAPITAL LETTER THETA;Lu;0;L;;;;;N;;;;03B8;
+0399;GREEK CAPITAL LETTER IOTA;Lu;0;L;;;;;N;;;;03B9;
+039A;GREEK CAPITAL LETTER KAPPA;Lu;0;L;;;;;N;;;;03BA;
+039B;GREEK CAPITAL LETTER LAMDA;Lu;0;L;;;;;N;GREEK CAPITAL LETTER LAMBDA;;;03BB;
+039C;GREEK CAPITAL LETTER MU;Lu;0;L;;;;;N;;;;03BC;
+039D;GREEK CAPITAL LETTER NU;Lu;0;L;;;;;N;;;;03BD;
+039E;GREEK CAPITAL LETTER XI;Lu;0;L;;;;;N;;;;03BE;
+039F;GREEK CAPITAL LETTER OMICRON;Lu;0;L;;;;;N;;;;03BF;
+03A0;GREEK CAPITAL LETTER PI;Lu;0;L;;;;;N;;;;03C0;
+03A1;GREEK CAPITAL LETTER RHO;Lu;0;L;;;;;N;;;;03C1;
+03A3;GREEK CAPITAL LETTER SIGMA;Lu;0;L;;;;;N;;;;03C3;
+03A4;GREEK CAPITAL LETTER TAU;Lu;0;L;;;;;N;;;;03C4;
+03A5;GREEK CAPITAL LETTER UPSILON;Lu;0;L;;;;;N;;;;03C5;
+03A6;GREEK CAPITAL LETTER PHI;Lu;0;L;;;;;N;;;;03C6;
+03A7;GREEK CAPITAL LETTER CHI;Lu;0;L;;;;;N;;;;03C7;
+03A8;GREEK CAPITAL LETTER PSI;Lu;0;L;;;;;N;;;;03C8;
+03A9;GREEK CAPITAL LETTER OMEGA;Lu;0;L;;;;;N;;;;03C9;
+03AA;GREEK CAPITAL LETTER IOTA WITH DIALYTIKA;Lu;0;L;0399 0308;;;;N;GREEK CAPITAL LETTER IOTA DIAERESIS;;;03CA;
+03AB;GREEK CAPITAL LETTER UPSILON WITH DIALYTIKA;Lu;0;L;03A5 0308;;;;N;GREEK CAPITAL LETTER UPSILON DIAERESIS;;;03CB;
+03AC;GREEK SMALL LETTER ALPHA WITH TONOS;Ll;0;L;03B1 0301;;;;N;GREEK SMALL LETTER ALPHA TONOS;;0386;;0386
+03AD;GREEK SMALL LETTER EPSILON WITH TONOS;Ll;0;L;03B5 0301;;;;N;GREEK SMALL LETTER EPSILON TONOS;;0388;;0388
+03AE;GREEK SMALL LETTER ETA WITH TONOS;Ll;0;L;03B7 0301;;;;N;GREEK SMALL LETTER ETA TONOS;;0389;;0389
+03AF;GREEK SMALL LETTER IOTA WITH TONOS;Ll;0;L;03B9 0301;;;;N;GREEK SMALL LETTER IOTA TONOS;;038A;;038A
+03B0;GREEK SMALL LETTER UPSILON WITH DIALYTIKA AND TONOS;Ll;0;L;03CB 0301;;;;N;GREEK SMALL LETTER UPSILON DIAERESIS TONOS;;;;
+03B1;GREEK SMALL LETTER ALPHA;Ll;0;L;;;;;N;;;0391;;0391
+03B2;GREEK SMALL LETTER BETA;Ll;0;L;;;;;N;;;0392;;0392
+03B3;GREEK SMALL LETTER GAMMA;Ll;0;L;;;;;N;;;0393;;0393
+03B4;GREEK SMALL LETTER DELTA;Ll;0;L;;;;;N;;;0394;;0394
+03B5;GREEK SMALL LETTER EPSILON;Ll;0;L;;;;;N;;;0395;;0395
+03B6;GREEK SMALL LETTER ZETA;Ll;0;L;;;;;N;;;0396;;0396
+03B7;GREEK SMALL LETTER ETA;Ll;0;L;;;;;N;;;0397;;0397
+03B8;GREEK SMALL LETTER THETA;Ll;0;L;;;;;N;;;0398;;0398
+03B9;GREEK SMALL LETTER IOTA;Ll;0;L;;;;;N;;;0399;;0399
+03BA;GREEK SMALL LETTER KAPPA;Ll;0;L;;;;;N;;;039A;;039A
+03BB;GREEK SMALL LETTER LAMDA;Ll;0;L;;;;;N;GREEK SMALL LETTER LAMBDA;;039B;;039B
+03BC;GREEK SMALL LETTER MU;Ll;0;L;;;;;N;;;039C;;039C
+03BD;GREEK SMALL LETTER NU;Ll;0;L;;;;;N;;;039D;;039D
+03BE;GREEK SMALL LETTER XI;Ll;0;L;;;;;N;;;039E;;039E
+03BF;GREEK SMALL LETTER OMICRON;Ll;0;L;;;;;N;;;039F;;039F
+03C0;GREEK SMALL LETTER PI;Ll;0;L;;;;;N;;;03A0;;03A0
+03C1;GREEK SMALL LETTER RHO;Ll;0;L;;;;;N;;;03A1;;03A1
+03C2;GREEK SMALL LETTER FINAL SIGMA;Ll;0;L;;;;;N;;;03A3;;03A3
+03C3;GREEK SMALL LETTER SIGMA;Ll;0;L;;;;;N;;;03A3;;03A3
+03C4;GREEK SMALL LETTER TAU;Ll;0;L;;;;;N;;;03A4;;03A4
+03C5;GREEK SMALL LETTER UPSILON;Ll;0;L;;;;;N;;;03A5;;03A5
+03C6;GREEK SMALL LETTER PHI;Ll;0;L;;;;;N;;;03A6;;03A6
+03C7;GREEK SMALL LETTER CHI;Ll;0;L;;;;;N;;;03A7;;03A7
+03C8;GREEK SMALL LETTER PSI;Ll;0;L;;;;;N;;;03A8;;03A8
+03C9;GREEK SMALL LETTER OMEGA;Ll;0;L;;;;;N;;;03A9;;03A9
+03CA;GREEK SMALL LETTER IOTA WITH DIALYTIKA;Ll;0;L;03B9 0308;;;;N;GREEK SMALL LETTER IOTA DIAERESIS;;03AA;;03AA
+03CB;GREEK SMALL LETTER UPSILON WITH DIALYTIKA;Ll;0;L;03C5 0308;;;;N;GREEK SMALL LETTER UPSILON DIAERESIS;;03AB;;03AB
+03CC;GREEK SMALL LETTER OMICRON WITH TONOS;Ll;0;L;03BF 0301;;;;N;GREEK SMALL LETTER OMICRON TONOS;;038C;;038C
+03CD;GREEK SMALL LETTER UPSILON WITH TONOS;Ll;0;L;03C5 0301;;;;N;GREEK SMALL LETTER UPSILON TONOS;;038E;;038E
+03CE;GREEK SMALL LETTER OMEGA WITH TONOS;Ll;0;L;03C9 0301;;;;N;GREEK SMALL LETTER OMEGA TONOS;;038F;;038F
+03CF;GREEK CAPITAL KAI SYMBOL;Lu;0;L;;;;;N;;;;03D7;
+03D0;GREEK BETA SYMBOL;Ll;0;L;<compat> 03B2;;;;N;GREEK SMALL LETTER CURLED BETA;;0392;;0392
+03D1;GREEK THETA SYMBOL;Ll;0;L;<compat> 03B8;;;;N;GREEK SMALL LETTER SCRIPT THETA;;0398;;0398
+03D2;GREEK UPSILON WITH HOOK SYMBOL;Lu;0;L;<compat> 03A5;;;;N;GREEK CAPITAL LETTER UPSILON HOOK;;;;
+03D3;GREEK UPSILON WITH ACUTE AND HOOK SYMBOL;Lu;0;L;03D2 0301;;;;N;GREEK CAPITAL LETTER UPSILON HOOK TONOS;;;;
+03D4;GREEK UPSILON WITH DIAERESIS AND HOOK SYMBOL;Lu;0;L;03D2 0308;;;;N;GREEK CAPITAL LETTER UPSILON HOOK DIAERESIS;;;;
+03D5;GREEK PHI SYMBOL;Ll;0;L;<compat> 03C6;;;;N;GREEK SMALL LETTER SCRIPT PHI;;03A6;;03A6
+03D6;GREEK PI SYMBOL;Ll;0;L;<compat> 03C0;;;;N;GREEK SMALL LETTER OMEGA PI;;03A0;;03A0
+03D7;GREEK KAI SYMBOL;Ll;0;L;;;;;N;;;03CF;;03CF
+03D8;GREEK LETTER ARCHAIC KOPPA;Lu;0;L;;;;;N;;;;03D9;
+03D9;GREEK SMALL LETTER ARCHAIC KOPPA;Ll;0;L;;;;;N;;;03D8;;03D8
+03DA;GREEK LETTER STIGMA;Lu;0;L;;;;;N;GREEK CAPITAL LETTER STIGMA;;;03DB;
+03DB;GREEK SMALL LETTER STIGMA;Ll;0;L;;;;;N;;;03DA;;03DA
+03DC;GREEK LETTER DIGAMMA;Lu;0;L;;;;;N;GREEK CAPITAL LETTER DIGAMMA;;;03DD;
+03DD;GREEK SMALL LETTER DIGAMMA;Ll;0;L;;;;;N;;;03DC;;03DC
+03DE;GREEK LETTER KOPPA;Lu;0;L;;;;;N;GREEK CAPITAL LETTER KOPPA;;;03DF;
+03DF;GREEK SMALL LETTER KOPPA;Ll;0;L;;;;;N;;;03DE;;03DE
+03E0;GREEK LETTER SAMPI;Lu;0;L;;;;;N;GREEK CAPITAL LETTER SAMPI;;;03E1;
+03E1;GREEK SMALL LETTER SAMPI;Ll;0;L;;;;;N;;;03E0;;03E0
+03E2;COPTIC CAPITAL LETTER SHEI;Lu;0;L;;;;;N;GREEK CAPITAL LETTER SHEI;;;03E3;
+03E3;COPTIC SMALL LETTER SHEI;Ll;0;L;;;;;N;GREEK SMALL LETTER SHEI;;03E2;;03E2
+03E4;COPTIC CAPITAL LETTER FEI;Lu;0;L;;;;;N;GREEK CAPITAL LETTER FEI;;;03E5;
+03E5;COPTIC SMALL LETTER FEI;Ll;0;L;;;;;N;GREEK SMALL LETTER FEI;;03E4;;03E4
+03E6;COPTIC CAPITAL LETTER KHEI;Lu;0;L;;;;;N;GREEK CAPITAL LETTER KHEI;;;03E7;
+03E7;COPTIC SMALL LETTER KHEI;Ll;0;L;;;;;N;GREEK SMALL LETTER KHEI;;03E6;;03E6
+03E8;COPTIC CAPITAL LETTER HORI;Lu;0;L;;;;;N;GREEK CAPITAL LETTER HORI;;;03E9;
+03E9;COPTIC SMALL LETTER HORI;Ll;0;L;;;;;N;GREEK SMALL LETTER HORI;;03E8;;03E8
+03EA;COPTIC CAPITAL LETTER GANGIA;Lu;0;L;;;;;N;GREEK CAPITAL LETTER GANGIA;;;03EB;
+03EB;COPTIC SMALL LETTER GANGIA;Ll;0;L;;;;;N;GREEK SMALL LETTER GANGIA;;03EA;;03EA
+03EC;COPTIC CAPITAL LETTER SHIMA;Lu;0;L;;;;;N;GREEK CAPITAL LETTER SHIMA;;;03ED;
+03ED;COPTIC SMALL LETTER SHIMA;Ll;0;L;;;;;N;GREEK SMALL LETTER SHIMA;;03EC;;03EC
+03EE;COPTIC CAPITAL LETTER DEI;Lu;0;L;;;;;N;GREEK CAPITAL LETTER DEI;;;03EF;
+03EF;COPTIC SMALL LETTER DEI;Ll;0;L;;;;;N;GREEK SMALL LETTER DEI;;03EE;;03EE
+03F0;GREEK KAPPA SYMBOL;Ll;0;L;<compat> 03BA;;;;N;GREEK SMALL LETTER SCRIPT KAPPA;;039A;;039A
+03F1;GREEK RHO SYMBOL;Ll;0;L;<compat> 03C1;;;;N;GREEK SMALL LETTER TAILED RHO;;03A1;;03A1
+03F2;GREEK LUNATE SIGMA SYMBOL;Ll;0;L;<compat> 03C2;;;;N;GREEK SMALL LETTER LUNATE SIGMA;;03F9;;03F9
+03F3;GREEK LETTER YOT;Ll;0;L;;;;;N;;;;;
+03F4;GREEK CAPITAL THETA SYMBOL;Lu;0;L;<compat> 0398;;;;N;;;;03B8;
+03F5;GREEK LUNATE EPSILON SYMBOL;Ll;0;L;<compat> 03B5;;;;N;;;0395;;0395
+03F6;GREEK REVERSED LUNATE EPSILON SYMBOL;Sm;0;ON;;;;;N;;;;;
+03F7;GREEK CAPITAL LETTER SHO;Lu;0;L;;;;;N;;;;03F8;
+03F8;GREEK SMALL LETTER SHO;Ll;0;L;;;;;N;;;03F7;;03F7
+03F9;GREEK CAPITAL LUNATE SIGMA SYMBOL;Lu;0;L;<compat> 03A3;;;;N;;;;03F2;
+03FA;GREEK CAPITAL LETTER SAN;Lu;0;L;;;;;N;;;;03FB;
+03FB;GREEK SMALL LETTER SAN;Ll;0;L;;;;;N;;;03FA;;03FA
+03FC;GREEK RHO WITH STROKE SYMBOL;Ll;0;L;;;;;N;;;;;
+03FD;GREEK CAPITAL REVERSED LUNATE SIGMA SYMBOL;Lu;0;L;;;;;N;;;;037B;
+03FE;GREEK CAPITAL DOTTED LUNATE SIGMA SYMBOL;Lu;0;L;;;;;N;;;;037C;
+03FF;GREEK CAPITAL REVERSED DOTTED LUNATE SIGMA SYMBOL;Lu;0;L;;;;;N;;;;037D;
+0400;CYRILLIC CAPITAL LETTER IE WITH GRAVE;Lu;0;L;0415 0300;;;;N;;;;0450;
+0401;CYRILLIC CAPITAL LETTER IO;Lu;0;L;0415 0308;;;;N;;;;0451;
+0402;CYRILLIC CAPITAL LETTER DJE;Lu;0;L;;;;;N;;;;0452;
+0403;CYRILLIC CAPITAL LETTER GJE;Lu;0;L;0413 0301;;;;N;;;;0453;
+0404;CYRILLIC CAPITAL LETTER UKRAINIAN IE;Lu;0;L;;;;;N;CYRILLIC CAPITAL LETTER E;;;0454;
+0405;CYRILLIC CAPITAL LETTER DZE;Lu;0;L;;;;;N;;;;0455;
+0406;CYRILLIC CAPITAL LETTER BYELORUSSIAN-UKRAINIAN I;Lu;0;L;;;;;N;CYRILLIC CAPITAL LETTER I;;;0456;
+0407;CYRILLIC CAPITAL LETTER YI;Lu;0;L;0406 0308;;;;N;;;;0457;
+0408;CYRILLIC CAPITAL LETTER JE;Lu;0;L;;;;;N;;;;0458;
+0409;CYRILLIC CAPITAL LETTER LJE;Lu;0;L;;;;;N;;;;0459;
+040A;CYRILLIC CAPITAL LETTER NJE;Lu;0;L;;;;;N;;;;045A;
+040B;CYRILLIC CAPITAL LETTER TSHE;Lu;0;L;;;;;N;;;;045B;
+040C;CYRILLIC CAPITAL LETTER KJE;Lu;0;L;041A 0301;;;;N;;;;045C;
+040D;CYRILLIC CAPITAL LETTER I WITH GRAVE;Lu;0;L;0418 0300;;;;N;;;;045D;
+040E;CYRILLIC CAPITAL LETTER SHORT U;Lu;0;L;0423 0306;;;;N;;;;045E;
+040F;CYRILLIC CAPITAL LETTER DZHE;Lu;0;L;;;;;N;;;;045F;
+0410;CYRILLIC CAPITAL LETTER A;Lu;0;L;;;;;N;;;;0430;
+0411;CYRILLIC CAPITAL LETTER BE;Lu;0;L;;;;;N;;;;0431;
+0412;CYRILLIC CAPITAL LETTER VE;Lu;0;L;;;;;N;;;;0432;
+0413;CYRILLIC CAPITAL LETTER GHE;Lu;0;L;;;;;N;CYRILLIC CAPITAL LETTER GE;;;0433;
+0414;CYRILLIC CAPITAL LETTER DE;Lu;0;L;;;;;N;;;;0434;
+0415;CYRILLIC CAPITAL LETTER IE;Lu;0;L;;;;;N;;;;0435;
+0416;CYRILLIC CAPITAL LETTER ZHE;Lu;0;L;;;;;N;;;;0436;
+0417;CYRILLIC CAPITAL LETTER ZE;Lu;0;L;;;;;N;;;;0437;
+0418;CYRILLIC CAPITAL LETTER I;Lu;0;L;;;;;N;CYRILLIC CAPITAL LETTER II;;;0438;
+0419;CYRILLIC CAPITAL LETTER SHORT I;Lu;0;L;0418 0306;;;;N;CYRILLIC CAPITAL LETTER SHORT II;;;0439;
+041A;CYRILLIC CAPITAL LETTER KA;Lu;0;L;;;;;N;;;;043A;
+041B;CYRILLIC CAPITAL LETTER EL;Lu;0;L;;;;;N;;;;043B;
+041C;CYRILLIC CAPITAL LETTER EM;Lu;0;L;;;;;N;;;;043C;
+041D;CYRILLIC CAPITAL LETTER EN;Lu;0;L;;;;;N;;;;043D;
+041E;CYRILLIC CAPITAL LETTER O;Lu;0;L;;;;;N;;;;043E;
+041F;CYRILLIC CAPITAL LETTER PE;Lu;0;L;;;;;N;;;;043F;
+0420;CYRILLIC CAPITAL LETTER ER;Lu;0;L;;;;;N;;;;0440;
+0421;CYRILLIC CAPITAL LETTER ES;Lu;0;L;;;;;N;;;;0441;
+0422;CYRILLIC CAPITAL LETTER TE;Lu;0;L;;;;;N;;;;0442;
+0423;CYRILLIC CAPITAL LETTER U;Lu;0;L;;;;;N;;;;0443;
+0424;CYRILLIC CAPITAL LETTER EF;Lu;0;L;;;;;N;;;;0444;
+0425;CYRILLIC CAPITAL LETTER HA;Lu;0;L;;;;;N;CYRILLIC CAPITAL LETTER KHA;;;0445;
+0426;CYRILLIC CAPITAL LETTER TSE;Lu;0;L;;;;;N;;;;0446;
+0427;CYRILLIC CAPITAL LETTER CHE;Lu;0;L;;;;;N;;;;0447;
+0428;CYRILLIC CAPITAL LETTER SHA;Lu;0;L;;;;;N;;;;0448;
+0429;CYRILLIC CAPITAL LETTER SHCHA;Lu;0;L;;;;;N;;;;0449;
+042A;CYRILLIC CAPITAL LETTER HARD SIGN;Lu;0;L;;;;;N;;;;044A;
+042B;CYRILLIC CAPITAL LETTER YERU;Lu;0;L;;;;;N;CYRILLIC CAPITAL LETTER YERI;;;044B;
+042C;CYRILLIC CAPITAL LETTER SOFT SIGN;Lu;0;L;;;;;N;;;;044C;
+042D;CYRILLIC CAPITAL LETTER E;Lu;0;L;;;;;N;CYRILLIC CAPITAL LETTER REVERSED E;;;044D;
+042E;CYRILLIC CAPITAL LETTER YU;Lu;0;L;;;;;N;CYRILLIC CAPITAL LETTER IU;;;044E;
+042F;CYRILLIC CAPITAL LETTER YA;Lu;0;L;;;;;N;CYRILLIC CAPITAL LETTER IA;;;044F;
+0430;CYRILLIC SMALL LETTER A;Ll;0;L;;;;;N;;;0410;;0410
+0431;CYRILLIC SMALL LETTER BE;Ll;0;L;;;;;N;;;0411;;0411
+0432;CYRILLIC SMALL LETTER VE;Ll;0;L;;;;;N;;;0412;;0412
+0433;CYRILLIC SMALL LETTER GHE;Ll;0;L;;;;;N;CYRILLIC SMALL LETTER GE;;0413;;0413
+0434;CYRILLIC SMALL LETTER DE;Ll;0;L;;;;;N;;;0414;;0414
+0435;CYRILLIC SMALL LETTER IE;Ll;0;L;;;;;N;;;0415;;0415
+0436;CYRILLIC SMALL LETTER ZHE;Ll;0;L;;;;;N;;;0416;;0416
+0437;CYRILLIC SMALL LETTER ZE;Ll;0;L;;;;;N;;;0417;;0417
+0438;CYRILLIC SMALL LETTER I;Ll;0;L;;;;;N;CYRILLIC SMALL LETTER II;;0418;;0418
+0439;CYRILLIC SMALL LETTER SHORT I;Ll;0;L;0438 0306;;;;N;CYRILLIC SMALL LETTER SHORT II;;0419;;0419
+043A;CYRILLIC SMALL LETTER KA;Ll;0;L;;;;;N;;;041A;;041A
+043B;CYRILLIC SMALL LETTER EL;Ll;0;L;;;;;N;;;041B;;041B
+043C;CYRILLIC SMALL LETTER EM;Ll;0;L;;;;;N;;;041C;;041C
+043D;CYRILLIC SMALL LETTER EN;Ll;0;L;;;;;N;;;041D;;041D
+043E;CYRILLIC SMALL LETTER O;Ll;0;L;;;;;N;;;041E;;041E
+043F;CYRILLIC SMALL LETTER PE;Ll;0;L;;;;;N;;;041F;;041F
+0440;CYRILLIC SMALL LETTER ER;Ll;0;L;;;;;N;;;0420;;0420
+0441;CYRILLIC SMALL LETTER ES;Ll;0;L;;;;;N;;;0421;;0421
+0442;CYRILLIC SMALL LETTER TE;Ll;0;L;;;;;N;;;0422;;0422
+0443;CYRILLIC SMALL LETTER U;Ll;0;L;;;;;N;;;0423;;0423
+0444;CYRILLIC SMALL LETTER EF;Ll;0;L;;;;;N;;;0424;;0424
+0445;CYRILLIC SMALL LETTER HA;Ll;0;L;;;;;N;CYRILLIC SMALL LETTER KHA;;0425;;0425
+0446;CYRILLIC SMALL LETTER TSE;Ll;0;L;;;;;N;;;0426;;0426
+0447;CYRILLIC SMALL LETTER CHE;Ll;0;L;;;;;N;;;0427;;0427
+0448;CYRILLIC SMALL LETTER SHA;Ll;0;L;;;;;N;;;0428;;0428
+0449;CYRILLIC SMALL LETTER SHCHA;Ll;0;L;;;;;N;;;0429;;0429
+044A;CYRILLIC SMALL LETTER HARD SIGN;Ll;0;L;;;;;N;;;042A;;042A
+044B;CYRILLIC SMALL LETTER YERU;Ll;0;L;;;;;N;CYRILLIC SMALL LETTER YERI;;042B;;042B
+044C;CYRILLIC SMALL LETTER SOFT SIGN;Ll;0;L;;;;;N;;;042C;;042C
+044D;CYRILLIC SMALL LETTER E;Ll;0;L;;;;;N;CYRILLIC SMALL LETTER REVERSED E;;042D;;042D
+044E;CYRILLIC SMALL LETTER YU;Ll;0;L;;;;;N;CYRILLIC SMALL LETTER IU;;042E;;042E
+044F;CYRILLIC SMALL LETTER YA;Ll;0;L;;;;;N;CYRILLIC SMALL LETTER IA;;042F;;042F
+0450;CYRILLIC SMALL LETTER IE WITH GRAVE;Ll;0;L;0435 0300;;;;N;;;0400;;0400
+0451;CYRILLIC SMALL LETTER IO;Ll;0;L;0435 0308;;;;N;;;0401;;0401
+0452;CYRILLIC SMALL LETTER DJE;Ll;0;L;;;;;N;;;0402;;0402
+0453;CYRILLIC SMALL LETTER GJE;Ll;0;L;0433 0301;;;;N;;;0403;;0403
+0454;CYRILLIC SMALL LETTER UKRAINIAN IE;Ll;0;L;;;;;N;CYRILLIC SMALL LETTER E;;0404;;0404
+0455;CYRILLIC SMALL LETTER DZE;Ll;0;L;;;;;N;;;0405;;0405
+0456;CYRILLIC SMALL LETTER BYELORUSSIAN-UKRAINIAN I;Ll;0;L;;;;;N;CYRILLIC SMALL LETTER I;;0406;;0406
+0457;CYRILLIC SMALL LETTER YI;Ll;0;L;0456 0308;;;;N;;;0407;;0407
+0458;CYRILLIC SMALL LETTER JE;Ll;0;L;;;;;N;;;0408;;0408
+0459;CYRILLIC SMALL LETTER LJE;Ll;0;L;;;;;N;;;0409;;0409
+045A;CYRILLIC SMALL LETTER NJE;Ll;0;L;;;;;N;;;040A;;040A
+045B;CYRILLIC SMALL LETTER TSHE;Ll;0;L;;;;;N;;;040B;;040B
+045C;CYRILLIC SMALL LETTER KJE;Ll;0;L;043A 0301;;;;N;;;040C;;040C
+045D;CYRILLIC SMALL LETTER I WITH GRAVE;Ll;0;L;0438 0300;;;;N;;;040D;;040D
+045E;CYRILLIC SMALL LETTER SHORT U;Ll;0;L;0443 0306;;;;N;;;040E;;040E
+045F;CYRILLIC SMALL LETTER DZHE;Ll;0;L;;;;;N;;;040F;;040F
+0460;CYRILLIC CAPITAL LETTER OMEGA;Lu;0;L;;;;;N;;;;0461;
+0461;CYRILLIC SMALL LETTER OMEGA;Ll;0;L;;;;;N;;;0460;;0460
+0462;CYRILLIC CAPITAL LETTER YAT;Lu;0;L;;;;;N;;;;0463;
+0463;CYRILLIC SMALL LETTER YAT;Ll;0;L;;;;;N;;;0462;;0462
+0464;CYRILLIC CAPITAL LETTER IOTIFIED E;Lu;0;L;;;;;N;;;;0465;
+0465;CYRILLIC SMALL LETTER IOTIFIED E;Ll;0;L;;;;;N;;;0464;;0464
+0466;CYRILLIC CAPITAL LETTER LITTLE YUS;Lu;0;L;;;;;N;;;;0467;
+0467;CYRILLIC SMALL LETTER LITTLE YUS;Ll;0;L;;;;;N;;;0466;;0466
+0468;CYRILLIC CAPITAL LETTER IOTIFIED LITTLE YUS;Lu;0;L;;;;;N;;;;0469;
+0469;CYRILLIC SMALL LETTER IOTIFIED LITTLE YUS;Ll;0;L;;;;;N;;;0468;;0468
+046A;CYRILLIC CAPITAL LETTER BIG YUS;Lu;0;L;;;;;N;;;;046B;
+046B;CYRILLIC SMALL LETTER BIG YUS;Ll;0;L;;;;;N;;;046A;;046A
+046C;CYRILLIC CAPITAL LETTER IOTIFIED BIG YUS;Lu;0;L;;;;;N;;;;046D;
+046D;CYRILLIC SMALL LETTER IOTIFIED BIG YUS;Ll;0;L;;;;;N;;;046C;;046C
+046E;CYRILLIC CAPITAL LETTER KSI;Lu;0;L;;;;;N;;;;046F;
+046F;CYRILLIC SMALL LETTER KSI;Ll;0;L;;;;;N;;;046E;;046E
+0470;CYRILLIC CAPITAL LETTER PSI;Lu;0;L;;;;;N;;;;0471;
+0471;CYRILLIC SMALL LETTER PSI;Ll;0;L;;;;;N;;;0470;;0470
+0472;CYRILLIC CAPITAL LETTER FITA;Lu;0;L;;;;;N;;;;0473;
+0473;CYRILLIC SMALL LETTER FITA;Ll;0;L;;;;;N;;;0472;;0472
+0474;CYRILLIC CAPITAL LETTER IZHITSA;Lu;0;L;;;;;N;;;;0475;
+0475;CYRILLIC SMALL LETTER IZHITSA;Ll;0;L;;;;;N;;;0474;;0474
+0476;CYRILLIC CAPITAL LETTER IZHITSA WITH DOUBLE GRAVE ACCENT;Lu;0;L;0474 030F;;;;N;CYRILLIC CAPITAL LETTER IZHITSA DOUBLE GRAVE;;;0477;
+0477;CYRILLIC SMALL LETTER IZHITSA WITH DOUBLE GRAVE ACCENT;Ll;0;L;0475 030F;;;;N;CYRILLIC SMALL LETTER IZHITSA DOUBLE GRAVE;;0476;;0476
+0478;CYRILLIC CAPITAL LETTER UK;Lu;0;L;;;;;N;CYRILLIC CAPITAL LETTER UK DIGRAPH;;;0479;
+0479;CYRILLIC SMALL LETTER UK;Ll;0;L;;;;;N;CYRILLIC SMALL LETTER UK DIGRAPH;;0478;;0478
+047A;CYRILLIC CAPITAL LETTER ROUND OMEGA;Lu;0;L;;;;;N;;;;047B;
+047B;CYRILLIC SMALL LETTER ROUND OMEGA;Ll;0;L;;;;;N;;;047A;;047A
+047C;CYRILLIC CAPITAL LETTER OMEGA WITH TITLO;Lu;0;L;;;;;N;CYRILLIC CAPITAL LETTER OMEGA TITLO;;;047D;
+047D;CYRILLIC SMALL LETTER OMEGA WITH TITLO;Ll;0;L;;;;;N;CYRILLIC SMALL LETTER OMEGA TITLO;;047C;;047C
+047E;CYRILLIC CAPITAL LETTER OT;Lu;0;L;;;;;N;;;;047F;
+047F;CYRILLIC SMALL LETTER OT;Ll;0;L;;;;;N;;;047E;;047E
+0480;CYRILLIC CAPITAL LETTER KOPPA;Lu;0;L;;;;;N;;;;0481;
+0481;CYRILLIC SMALL LETTER KOPPA;Ll;0;L;;;;;N;;;0480;;0480
+0482;CYRILLIC THOUSANDS SIGN;So;0;L;;;;;N;;;;;
+0483;COMBINING CYRILLIC TITLO;Mn;230;NSM;;;;;N;CYRILLIC NON-SPACING TITLO;;;;
+0484;COMBINING CYRILLIC PALATALIZATION;Mn;230;NSM;;;;;N;CYRILLIC NON-SPACING PALATALIZATION;;;;
+0485;COMBINING CYRILLIC DASIA PNEUMATA;Mn;230;NSM;;;;;N;CYRILLIC NON-SPACING DASIA PNEUMATA;;;;
+0486;COMBINING CYRILLIC PSILI PNEUMATA;Mn;230;NSM;;;;;N;CYRILLIC NON-SPACING PSILI PNEUMATA;;;;
+0487;COMBINING CYRILLIC POKRYTIE;Mn;230;NSM;;;;;N;;;;;
+0488;COMBINING CYRILLIC HUNDRED THOUSANDS SIGN;Me;0;NSM;;;;;N;;;;;
+0489;COMBINING CYRILLIC MILLIONS SIGN;Me;0;NSM;;;;;N;;;;;
+048A;CYRILLIC CAPITAL LETTER SHORT I WITH TAIL;Lu;0;L;;;;;N;;;;048B;
+048B;CYRILLIC SMALL LETTER SHORT I WITH TAIL;Ll;0;L;;;;;N;;;048A;;048A
+048C;CYRILLIC CAPITAL LETTER SEMISOFT SIGN;Lu;0;L;;;;;N;;;;048D;
+048D;CYRILLIC SMALL LETTER SEMISOFT SIGN;Ll;0;L;;;;;N;;;048C;;048C
+048E;CYRILLIC CAPITAL LETTER ER WITH TICK;Lu;0;L;;;;;N;;;;048F;
+048F;CYRILLIC SMALL LETTER ER WITH TICK;Ll;0;L;;;;;N;;;048E;;048E
+0490;CYRILLIC CAPITAL LETTER GHE WITH UPTURN;Lu;0;L;;;;;N;CYRILLIC CAPITAL LETTER GE WITH UPTURN;;;0491;
+0491;CYRILLIC SMALL LETTER GHE WITH UPTURN;Ll;0;L;;;;;N;CYRILLIC SMALL LETTER GE WITH UPTURN;;0490;;0490
+0492;CYRILLIC CAPITAL LETTER GHE WITH STROKE;Lu;0;L;;;;;N;CYRILLIC CAPITAL LETTER GE BAR;;;0493;
+0493;CYRILLIC SMALL LETTER GHE WITH STROKE;Ll;0;L;;;;;N;CYRILLIC SMALL LETTER GE BAR;;0492;;0492
+0494;CYRILLIC CAPITAL LETTER GHE WITH MIDDLE HOOK;Lu;0;L;;;;;N;CYRILLIC CAPITAL LETTER GE HOOK;;;0495;
+0495;CYRILLIC SMALL LETTER GHE WITH MIDDLE HOOK;Ll;0;L;;;;;N;CYRILLIC SMALL LETTER GE HOOK;;0494;;0494
+0496;CYRILLIC CAPITAL LETTER ZHE WITH DESCENDER;Lu;0;L;;;;;N;CYRILLIC CAPITAL LETTER ZHE WITH RIGHT DESCENDER;;;0497;
+0497;CYRILLIC SMALL LETTER ZHE WITH DESCENDER;Ll;0;L;;;;;N;CYRILLIC SMALL LETTER ZHE WITH RIGHT DESCENDER;;0496;;0496
+0498;CYRILLIC CAPITAL LETTER ZE WITH DESCENDER;Lu;0;L;;;;;N;CYRILLIC CAPITAL LETTER ZE CEDILLA;;;0499;
+0499;CYRILLIC SMALL LETTER ZE WITH DESCENDER;Ll;0;L;;;;;N;CYRILLIC SMALL LETTER ZE CEDILLA;;0498;;0498
+049A;CYRILLIC CAPITAL LETTER KA WITH DESCENDER;Lu;0;L;;;;;N;CYRILLIC CAPITAL LETTER KA WITH RIGHT DESCENDER;;;049B;
+049B;CYRILLIC SMALL LETTER KA WITH DESCENDER;Ll;0;L;;;;;N;CYRILLIC SMALL LETTER KA WITH RIGHT DESCENDER;;049A;;049A
+049C;CYRILLIC CAPITAL LETTER KA WITH VERTICAL STROKE;Lu;0;L;;;;;N;CYRILLIC CAPITAL LETTER KA VERTICAL BAR;;;049D;
+049D;CYRILLIC SMALL LETTER KA WITH VERTICAL STROKE;Ll;0;L;;;;;N;CYRILLIC SMALL LETTER KA VERTICAL BAR;;049C;;049C
+049E;CYRILLIC CAPITAL LETTER KA WITH STROKE;Lu;0;L;;;;;N;CYRILLIC CAPITAL LETTER KA BAR;;;049F;
+049F;CYRILLIC SMALL LETTER KA WITH STROKE;Ll;0;L;;;;;N;CYRILLIC SMALL LETTER KA BAR;;049E;;049E
+04A0;CYRILLIC CAPITAL LETTER BASHKIR KA;Lu;0;L;;;;;N;CYRILLIC CAPITAL LETTER REVERSED GE KA;;;04A1;
+04A1;CYRILLIC SMALL LETTER BASHKIR KA;Ll;0;L;;;;;N;CYRILLIC SMALL LETTER REVERSED GE KA;;04A0;;04A0
+04A2;CYRILLIC CAPITAL LETTER EN WITH DESCENDER;Lu;0;L;;;;;N;CYRILLIC CAPITAL LETTER EN WITH RIGHT DESCENDER;;;04A3;
+04A3;CYRILLIC SMALL LETTER EN WITH DESCENDER;Ll;0;L;;;;;N;CYRILLIC SMALL LETTER EN WITH RIGHT DESCENDER;;04A2;;04A2
+04A4;CYRILLIC CAPITAL LIGATURE EN GHE;Lu;0;L;;;;;N;CYRILLIC CAPITAL LETTER EN GE;;;04A5;
+04A5;CYRILLIC SMALL LIGATURE EN GHE;Ll;0;L;;;;;N;CYRILLIC SMALL LETTER EN GE;;04A4;;04A4
+04A6;CYRILLIC CAPITAL LETTER PE WITH MIDDLE HOOK;Lu;0;L;;;;;N;CYRILLIC CAPITAL LETTER PE HOOK;;;04A7;
+04A7;CYRILLIC SMALL LETTER PE WITH MIDDLE HOOK;Ll;0;L;;;;;N;CYRILLIC SMALL LETTER PE HOOK;;04A6;;04A6
+04A8;CYRILLIC CAPITAL LETTER ABKHASIAN HA;Lu;0;L;;;;;N;CYRILLIC CAPITAL LETTER O HOOK;;;04A9;
+04A9;CYRILLIC SMALL LETTER ABKHASIAN HA;Ll;0;L;;;;;N;CYRILLIC SMALL LETTER O HOOK;;04A8;;04A8
+04AA;CYRILLIC CAPITAL LETTER ES WITH DESCENDER;Lu;0;L;;;;;N;CYRILLIC CAPITAL LETTER ES CEDILLA;;;04AB;
+04AB;CYRILLIC SMALL LETTER ES WITH DESCENDER;Ll;0;L;;;;;N;CYRILLIC SMALL LETTER ES CEDILLA;;04AA;;04AA
+04AC;CYRILLIC CAPITAL LETTER TE WITH DESCENDER;Lu;0;L;;;;;N;CYRILLIC CAPITAL LETTER TE WITH RIGHT DESCENDER;;;04AD;
+04AD;CYRILLIC SMALL LETTER TE WITH DESCENDER;Ll;0;L;;;;;N;CYRILLIC SMALL LETTER TE WITH RIGHT DESCENDER;;04AC;;04AC
+04AE;CYRILLIC CAPITAL LETTER STRAIGHT U;Lu;0;L;;;;;N;;;;04AF;
+04AF;CYRILLIC SMALL LETTER STRAIGHT U;Ll;0;L;;;;;N;;;04AE;;04AE
+04B0;CYRILLIC CAPITAL LETTER STRAIGHT U WITH STROKE;Lu;0;L;;;;;N;CYRILLIC CAPITAL LETTER STRAIGHT U BAR;;;04B1;
+04B1;CYRILLIC SMALL LETTER STRAIGHT U WITH STROKE;Ll;0;L;;;;;N;CYRILLIC SMALL LETTER STRAIGHT U BAR;;04B0;;04B0
+04B2;CYRILLIC CAPITAL LETTER HA WITH DESCENDER;Lu;0;L;;;;;N;CYRILLIC CAPITAL LETTER KHA WITH RIGHT DESCENDER;;;04B3;
+04B3;CYRILLIC SMALL LETTER HA WITH DESCENDER;Ll;0;L;;;;;N;CYRILLIC SMALL LETTER KHA WITH RIGHT DESCENDER;;04B2;;04B2
+04B4;CYRILLIC CAPITAL LIGATURE TE TSE;Lu;0;L;;;;;N;CYRILLIC CAPITAL LETTER TE TSE;;;04B5;
+04B5;CYRILLIC SMALL LIGATURE TE TSE;Ll;0;L;;;;;N;CYRILLIC SMALL LETTER TE TSE;;04B4;;04B4
+04B6;CYRILLIC CAPITAL LETTER CHE WITH DESCENDER;Lu;0;L;;;;;N;CYRILLIC CAPITAL LETTER CHE WITH RIGHT DESCENDER;;;04B7;
+04B7;CYRILLIC SMALL LETTER CHE WITH DESCENDER;Ll;0;L;;;;;N;CYRILLIC SMALL LETTER CHE WITH RIGHT DESCENDER;;04B6;;04B6
+04B8;CYRILLIC CAPITAL LETTER CHE WITH VERTICAL STROKE;Lu;0;L;;;;;N;CYRILLIC CAPITAL LETTER CHE VERTICAL BAR;;;04B9;
+04B9;CYRILLIC SMALL LETTER CHE WITH VERTICAL STROKE;Ll;0;L;;;;;N;CYRILLIC SMALL LETTER CHE VERTICAL BAR;;04B8;;04B8
+04BA;CYRILLIC CAPITAL LETTER SHHA;Lu;0;L;;;;;N;CYRILLIC CAPITAL LETTER H;;;04BB;
+04BB;CYRILLIC SMALL LETTER SHHA;Ll;0;L;;;;;N;CYRILLIC SMALL LETTER H;;04BA;;04BA
+04BC;CYRILLIC CAPITAL LETTER ABKHASIAN CHE;Lu;0;L;;;;;N;CYRILLIC CAPITAL LETTER IE HOOK;;;04BD;
+04BD;CYRILLIC SMALL LETTER ABKHASIAN CHE;Ll;0;L;;;;;N;CYRILLIC SMALL LETTER IE HOOK;;04BC;;04BC
+04BE;CYRILLIC CAPITAL LETTER ABKHASIAN CHE WITH DESCENDER;Lu;0;L;;;;;N;CYRILLIC CAPITAL LETTER IE HOOK OGONEK;;;04BF;
+04BF;CYRILLIC SMALL LETTER ABKHASIAN CHE WITH DESCENDER;Ll;0;L;;;;;N;CYRILLIC SMALL LETTER IE HOOK OGONEK;;04BE;;04BE
+04C0;CYRILLIC LETTER PALOCHKA;Lu;0;L;;;;;N;CYRILLIC LETTER I;;;04CF;
+04C1;CYRILLIC CAPITAL LETTER ZHE WITH BREVE;Lu;0;L;0416 0306;;;;N;CYRILLIC CAPITAL LETTER SHORT ZHE;;;04C2;
+04C2;CYRILLIC SMALL LETTER ZHE WITH BREVE;Ll;0;L;0436 0306;;;;N;CYRILLIC SMALL LETTER SHORT ZHE;;04C1;;04C1
+04C3;CYRILLIC CAPITAL LETTER KA WITH HOOK;Lu;0;L;;;;;N;CYRILLIC CAPITAL LETTER KA HOOK;;;04C4;
+04C4;CYRILLIC SMALL LETTER KA WITH HOOK;Ll;0;L;;;;;N;CYRILLIC SMALL LETTER KA HOOK;;04C3;;04C3
+04C5;CYRILLIC CAPITAL LETTER EL WITH TAIL;Lu;0;L;;;;;N;;;;04C6;
+04C6;CYRILLIC SMALL LETTER EL WITH TAIL;Ll;0;L;;;;;N;;;04C5;;04C5
+04C7;CYRILLIC CAPITAL LETTER EN WITH HOOK;Lu;0;L;;;;;N;CYRILLIC CAPITAL LETTER EN HOOK;;;04C8;
+04C8;CYRILLIC SMALL LETTER EN WITH HOOK;Ll;0;L;;;;;N;CYRILLIC SMALL LETTER EN HOOK;;04C7;;04C7
+04C9;CYRILLIC CAPITAL LETTER EN WITH TAIL;Lu;0;L;;;;;N;;;;04CA;
+04CA;CYRILLIC SMALL LETTER EN WITH TAIL;Ll;0;L;;;;;N;;;04C9;;04C9
+04CB;CYRILLIC CAPITAL LETTER KHAKASSIAN CHE;Lu;0;L;;;;;N;CYRILLIC CAPITAL LETTER CHE WITH LEFT DESCENDER;;;04CC;
+04CC;CYRILLIC SMALL LETTER KHAKASSIAN CHE;Ll;0;L;;;;;N;CYRILLIC SMALL LETTER CHE WITH LEFT DESCENDER;;04CB;;04CB
+04CD;CYRILLIC CAPITAL LETTER EM WITH TAIL;Lu;0;L;;;;;N;;;;04CE;
+04CE;CYRILLIC SMALL LETTER EM WITH TAIL;Ll;0;L;;;;;N;;;04CD;;04CD
+04CF;CYRILLIC SMALL LETTER PALOCHKA;Ll;0;L;;;;;N;;;04C0;;04C0
+04D0;CYRILLIC CAPITAL LETTER A WITH BREVE;Lu;0;L;0410 0306;;;;N;;;;04D1;
+04D1;CYRILLIC SMALL LETTER A WITH BREVE;Ll;0;L;0430 0306;;;;N;;;04D0;;04D0
+04D2;CYRILLIC CAPITAL LETTER A WITH DIAERESIS;Lu;0;L;0410 0308;;;;N;;;;04D3;
+04D3;CYRILLIC SMALL LETTER A WITH DIAERESIS;Ll;0;L;0430 0308;;;;N;;;04D2;;04D2
+04D4;CYRILLIC CAPITAL LIGATURE A IE;Lu;0;L;;;;;N;;;;04D5;
+04D5;CYRILLIC SMALL LIGATURE A IE;Ll;0;L;;;;;N;;;04D4;;04D4
+04D6;CYRILLIC CAPITAL LETTER IE WITH BREVE;Lu;0;L;0415 0306;;;;N;;;;04D7;
+04D7;CYRILLIC SMALL LETTER IE WITH BREVE;Ll;0;L;0435 0306;;;;N;;;04D6;;04D6
+04D8;CYRILLIC CAPITAL LETTER SCHWA;Lu;0;L;;;;;N;;;;04D9;
+04D9;CYRILLIC SMALL LETTER SCHWA;Ll;0;L;;;;;N;;;04D8;;04D8
+04DA;CYRILLIC CAPITAL LETTER SCHWA WITH DIAERESIS;Lu;0;L;04D8 0308;;;;N;;;;04DB;
+04DB;CYRILLIC SMALL LETTER SCHWA WITH DIAERESIS;Ll;0;L;04D9 0308;;;;N;;;04DA;;04DA
+04DC;CYRILLIC CAPITAL LETTER ZHE WITH DIAERESIS;Lu;0;L;0416 0308;;;;N;;;;04DD;
+04DD;CYRILLIC SMALL LETTER ZHE WITH DIAERESIS;Ll;0;L;0436 0308;;;;N;;;04DC;;04DC
+04DE;CYRILLIC CAPITAL LETTER ZE WITH DIAERESIS;Lu;0;L;0417 0308;;;;N;;;;04DF;
+04DF;CYRILLIC SMALL LETTER ZE WITH DIAERESIS;Ll;0;L;0437 0308;;;;N;;;04DE;;04DE
+04E0;CYRILLIC CAPITAL LETTER ABKHASIAN DZE;Lu;0;L;;;;;N;;;;04E1;
+04E1;CYRILLIC SMALL LETTER ABKHASIAN DZE;Ll;0;L;;;;;N;;;04E0;;04E0
+04E2;CYRILLIC CAPITAL LETTER I WITH MACRON;Lu;0;L;0418 0304;;;;N;;;;04E3;
+04E3;CYRILLIC SMALL LETTER I WITH MACRON;Ll;0;L;0438 0304;;;;N;;;04E2;;04E2
+04E4;CYRILLIC CAPITAL LETTER I WITH DIAERESIS;Lu;0;L;0418 0308;;;;N;;;;04E5;
+04E5;CYRILLIC SMALL LETTER I WITH DIAERESIS;Ll;0;L;0438 0308;;;;N;;;04E4;;04E4
+04E6;CYRILLIC CAPITAL LETTER O WITH DIAERESIS;Lu;0;L;041E 0308;;;;N;;;;04E7;
+04E7;CYRILLIC SMALL LETTER O WITH DIAERESIS;Ll;0;L;043E 0308;;;;N;;;04E6;;04E6
+04E8;CYRILLIC CAPITAL LETTER BARRED O;Lu;0;L;;;;;N;;;;04E9;
+04E9;CYRILLIC SMALL LETTER BARRED O;Ll;0;L;;;;;N;;;04E8;;04E8
+04EA;CYRILLIC CAPITAL LETTER BARRED O WITH DIAERESIS;Lu;0;L;04E8 0308;;;;N;;;;04EB;
+04EB;CYRILLIC SMALL LETTER BARRED O WITH DIAERESIS;Ll;0;L;04E9 0308;;;;N;;;04EA;;04EA
+04EC;CYRILLIC CAPITAL LETTER E WITH DIAERESIS;Lu;0;L;042D 0308;;;;N;;;;04ED;
+04ED;CYRILLIC SMALL LETTER E WITH DIAERESIS;Ll;0;L;044D 0308;;;;N;;;04EC;;04EC
+04EE;CYRILLIC CAPITAL LETTER U WITH MACRON;Lu;0;L;0423 0304;;;;N;;;;04EF;
+04EF;CYRILLIC SMALL LETTER U WITH MACRON;Ll;0;L;0443 0304;;;;N;;;04EE;;04EE
+04F0;CYRILLIC CAPITAL LETTER U WITH DIAERESIS;Lu;0;L;0423 0308;;;;N;;;;04F1;
+04F1;CYRILLIC SMALL LETTER U WITH DIAERESIS;Ll;0;L;0443 0308;;;;N;;;04F0;;04F0
+04F2;CYRILLIC CAPITAL LETTER U WITH DOUBLE ACUTE;Lu;0;L;0423 030B;;;;N;;;;04F3;
+04F3;CYRILLIC SMALL LETTER U WITH DOUBLE ACUTE;Ll;0;L;0443 030B;;;;N;;;04F2;;04F2
+04F4;CYRILLIC CAPITAL LETTER CHE WITH DIAERESIS;Lu;0;L;0427 0308;;;;N;;;;04F5;
+04F5;CYRILLIC SMALL LETTER CHE WITH DIAERESIS;Ll;0;L;0447 0308;;;;N;;;04F4;;04F4
+04F6;CYRILLIC CAPITAL LETTER GHE WITH DESCENDER;Lu;0;L;;;;;N;;;;04F7;
+04F7;CYRILLIC SMALL LETTER GHE WITH DESCENDER;Ll;0;L;;;;;N;;;04F6;;04F6
+04F8;CYRILLIC CAPITAL LETTER YERU WITH DIAERESIS;Lu;0;L;042B 0308;;;;N;;;;04F9;
+04F9;CYRILLIC SMALL LETTER YERU WITH DIAERESIS;Ll;0;L;044B 0308;;;;N;;;04F8;;04F8
+04FA;CYRILLIC CAPITAL LETTER GHE WITH STROKE AND HOOK;Lu;0;L;;;;;N;;;;04FB;
+04FB;CYRILLIC SMALL LETTER GHE WITH STROKE AND HOOK;Ll;0;L;;;;;N;;;04FA;;04FA
+04FC;CYRILLIC CAPITAL LETTER HA WITH HOOK;Lu;0;L;;;;;N;;;;04FD;
+04FD;CYRILLIC SMALL LETTER HA WITH HOOK;Ll;0;L;;;;;N;;;04FC;;04FC
+04FE;CYRILLIC CAPITAL LETTER HA WITH STROKE;Lu;0;L;;;;;N;;;;04FF;
+04FF;CYRILLIC SMALL LETTER HA WITH STROKE;Ll;0;L;;;;;N;;;04FE;;04FE
+0500;CYRILLIC CAPITAL LETTER KOMI DE;Lu;0;L;;;;;N;;;;0501;
+0501;CYRILLIC SMALL LETTER KOMI DE;Ll;0;L;;;;;N;;;0500;;0500
+0502;CYRILLIC CAPITAL LETTER KOMI DJE;Lu;0;L;;;;;N;;;;0503;
+0503;CYRILLIC SMALL LETTER KOMI DJE;Ll;0;L;;;;;N;;;0502;;0502
+0504;CYRILLIC CAPITAL LETTER KOMI ZJE;Lu;0;L;;;;;N;;;;0505;
+0505;CYRILLIC SMALL LETTER KOMI ZJE;Ll;0;L;;;;;N;;;0504;;0504
+0506;CYRILLIC CAPITAL LETTER KOMI DZJE;Lu;0;L;;;;;N;;;;0507;
+0507;CYRILLIC SMALL LETTER KOMI DZJE;Ll;0;L;;;;;N;;;0506;;0506
+0508;CYRILLIC CAPITAL LETTER KOMI LJE;Lu;0;L;;;;;N;;;;0509;
+0509;CYRILLIC SMALL LETTER KOMI LJE;Ll;0;L;;;;;N;;;0508;;0508
+050A;CYRILLIC CAPITAL LETTER KOMI NJE;Lu;0;L;;;;;N;;;;050B;
+050B;CYRILLIC SMALL LETTER KOMI NJE;Ll;0;L;;;;;N;;;050A;;050A
+050C;CYRILLIC CAPITAL LETTER KOMI SJE;Lu;0;L;;;;;N;;;;050D;
+050D;CYRILLIC SMALL LETTER KOMI SJE;Ll;0;L;;;;;N;;;050C;;050C
+050E;CYRILLIC CAPITAL LETTER KOMI TJE;Lu;0;L;;;;;N;;;;050F;
+050F;CYRILLIC SMALL LETTER KOMI TJE;Ll;0;L;;;;;N;;;050E;;050E
+0510;CYRILLIC CAPITAL LETTER REVERSED ZE;Lu;0;L;;;;;N;;;;0511;
+0511;CYRILLIC SMALL LETTER REVERSED ZE;Ll;0;L;;;;;N;;;0510;;0510
+0512;CYRILLIC CAPITAL LETTER EL WITH HOOK;Lu;0;L;;;;;N;;;;0513;
+0513;CYRILLIC SMALL LETTER EL WITH HOOK;Ll;0;L;;;;;N;;;0512;;0512
+0514;CYRILLIC CAPITAL LETTER LHA;Lu;0;L;;;;;N;;;;0515;
+0515;CYRILLIC SMALL LETTER LHA;Ll;0;L;;;;;N;;;0514;;0514
+0516;CYRILLIC CAPITAL LETTER RHA;Lu;0;L;;;;;N;;;;0517;
+0517;CYRILLIC SMALL LETTER RHA;Ll;0;L;;;;;N;;;0516;;0516
+0518;CYRILLIC CAPITAL LETTER YAE;Lu;0;L;;;;;N;;;;0519;
+0519;CYRILLIC SMALL LETTER YAE;Ll;0;L;;;;;N;;;0518;;0518
+051A;CYRILLIC CAPITAL LETTER QA;Lu;0;L;;;;;N;;;;051B;
+051B;CYRILLIC SMALL LETTER QA;Ll;0;L;;;;;N;;;051A;;051A
+051C;CYRILLIC CAPITAL LETTER WE;Lu;0;L;;;;;N;;;;051D;
+051D;CYRILLIC SMALL LETTER WE;Ll;0;L;;;;;N;;;051C;;051C
+051E;CYRILLIC CAPITAL LETTER ALEUT KA;Lu;0;L;;;;;N;;;;051F;
+051F;CYRILLIC SMALL LETTER ALEUT KA;Ll;0;L;;;;;N;;;051E;;051E
+0520;CYRILLIC CAPITAL LETTER EL WITH MIDDLE HOOK;Lu;0;L;;;;;N;;;;0521;
+0521;CYRILLIC SMALL LETTER EL WITH MIDDLE HOOK;Ll;0;L;;;;;N;;;0520;;0520
+0522;CYRILLIC CAPITAL LETTER EN WITH MIDDLE HOOK;Lu;0;L;;;;;N;;;;0523;
+0523;CYRILLIC SMALL LETTER EN WITH MIDDLE HOOK;Ll;0;L;;;;;N;;;0522;;0522
+0524;CYRILLIC CAPITAL LETTER PE WITH DESCENDER;Lu;0;L;;;;;N;;;;0525;
+0525;CYRILLIC SMALL LETTER PE WITH DESCENDER;Ll;0;L;;;;;N;;;0524;;0524
+0526;CYRILLIC CAPITAL LETTER SHHA WITH DESCENDER;Lu;0;L;;;;;N;;;;0527;
+0527;CYRILLIC SMALL LETTER SHHA WITH DESCENDER;Ll;0;L;;;;;N;;;0526;;0526
+0531;ARMENIAN CAPITAL LETTER AYB;Lu;0;L;;;;;N;;;;0561;
+0532;ARMENIAN CAPITAL LETTER BEN;Lu;0;L;;;;;N;;;;0562;
+0533;ARMENIAN CAPITAL LETTER GIM;Lu;0;L;;;;;N;;;;0563;
+0534;ARMENIAN CAPITAL LETTER DA;Lu;0;L;;;;;N;;;;0564;
+0535;ARMENIAN CAPITAL LETTER ECH;Lu;0;L;;;;;N;;;;0565;
+0536;ARMENIAN CAPITAL LETTER ZA;Lu;0;L;;;;;N;;;;0566;
+0537;ARMENIAN CAPITAL LETTER EH;Lu;0;L;;;;;N;;;;0567;
+0538;ARMENIAN CAPITAL LETTER ET;Lu;0;L;;;;;N;;;;0568;
+0539;ARMENIAN CAPITAL LETTER TO;Lu;0;L;;;;;N;;;;0569;
+053A;ARMENIAN CAPITAL LETTER ZHE;Lu;0;L;;;;;N;;;;056A;
+053B;ARMENIAN CAPITAL LETTER INI;Lu;0;L;;;;;N;;;;056B;
+053C;ARMENIAN CAPITAL LETTER LIWN;Lu;0;L;;;;;N;;;;056C;
+053D;ARMENIAN CAPITAL LETTER XEH;Lu;0;L;;;;;N;;;;056D;
+053E;ARMENIAN CAPITAL LETTER CA;Lu;0;L;;;;;N;;;;056E;
+053F;ARMENIAN CAPITAL LETTER KEN;Lu;0;L;;;;;N;;;;056F;
+0540;ARMENIAN CAPITAL LETTER HO;Lu;0;L;;;;;N;;;;0570;
+0541;ARMENIAN CAPITAL LETTER JA;Lu;0;L;;;;;N;;;;0571;
+0542;ARMENIAN CAPITAL LETTER GHAD;Lu;0;L;;;;;N;ARMENIAN CAPITAL LETTER LAD;;;0572;
+0543;ARMENIAN CAPITAL LETTER CHEH;Lu;0;L;;;;;N;;;;0573;
+0544;ARMENIAN CAPITAL LETTER MEN;Lu;0;L;;;;;N;;;;0574;
+0545;ARMENIAN CAPITAL LETTER YI;Lu;0;L;;;;;N;;;;0575;
+0546;ARMENIAN CAPITAL LETTER NOW;Lu;0;L;;;;;N;;;;0576;
+0547;ARMENIAN CAPITAL LETTER SHA;Lu;0;L;;;;;N;;;;0577;
+0548;ARMENIAN CAPITAL LETTER VO;Lu;0;L;;;;;N;;;;0578;
+0549;ARMENIAN CAPITAL LETTER CHA;Lu;0;L;;;;;N;;;;0579;
+054A;ARMENIAN CAPITAL LETTER PEH;Lu;0;L;;;;;N;;;;057A;
+054B;ARMENIAN CAPITAL LETTER JHEH;Lu;0;L;;;;;N;;;;057B;
+054C;ARMENIAN CAPITAL LETTER RA;Lu;0;L;;;;;N;;;;057C;
+054D;ARMENIAN CAPITAL LETTER SEH;Lu;0;L;;;;;N;;;;057D;
+054E;ARMENIAN CAPITAL LETTER VEW;Lu;0;L;;;;;N;;;;057E;
+054F;ARMENIAN CAPITAL LETTER TIWN;Lu;0;L;;;;;N;;;;057F;
+0550;ARMENIAN CAPITAL LETTER REH;Lu;0;L;;;;;N;;;;0580;
+0551;ARMENIAN CAPITAL LETTER CO;Lu;0;L;;;;;N;;;;0581;
+0552;ARMENIAN CAPITAL LETTER YIWN;Lu;0;L;;;;;N;;;;0582;
+0553;ARMENIAN CAPITAL LETTER PIWR;Lu;0;L;;;;;N;;;;0583;
+0554;ARMENIAN CAPITAL LETTER KEH;Lu;0;L;;;;;N;;;;0584;
+0555;ARMENIAN CAPITAL LETTER OH;Lu;0;L;;;;;N;;;;0585;
+0556;ARMENIAN CAPITAL LETTER FEH;Lu;0;L;;;;;N;;;;0586;
+0559;ARMENIAN MODIFIER LETTER LEFT HALF RING;Lm;0;L;;;;;N;;;;;
+055A;ARMENIAN APOSTROPHE;Po;0;L;;;;;N;ARMENIAN MODIFIER LETTER RIGHT HALF RING;;;;
+055B;ARMENIAN EMPHASIS MARK;Po;0;L;;;;;N;;;;;
+055C;ARMENIAN EXCLAMATION MARK;Po;0;L;;;;;N;;;;;
+055D;ARMENIAN COMMA;Po;0;L;;;;;N;;;;;
+055E;ARMENIAN QUESTION MARK;Po;0;L;;;;;N;;;;;
+055F;ARMENIAN ABBREVIATION MARK;Po;0;L;;;;;N;;;;;
+0561;ARMENIAN SMALL LETTER AYB;Ll;0;L;;;;;N;;;0531;;0531
+0562;ARMENIAN SMALL LETTER BEN;Ll;0;L;;;;;N;;;0532;;0532
+0563;ARMENIAN SMALL LETTER GIM;Ll;0;L;;;;;N;;;0533;;0533
+0564;ARMENIAN SMALL LETTER DA;Ll;0;L;;;;;N;;;0534;;0534
+0565;ARMENIAN SMALL LETTER ECH;Ll;0;L;;;;;N;;;0535;;0535
+0566;ARMENIAN SMALL LETTER ZA;Ll;0;L;;;;;N;;;0536;;0536
+0567;ARMENIAN SMALL LETTER EH;Ll;0;L;;;;;N;;;0537;;0537
+0568;ARMENIAN SMALL LETTER ET;Ll;0;L;;;;;N;;;0538;;0538
+0569;ARMENIAN SMALL LETTER TO;Ll;0;L;;;;;N;;;0539;;0539
+056A;ARMENIAN SMALL LETTER ZHE;Ll;0;L;;;;;N;;;053A;;053A
+056B;ARMENIAN SMALL LETTER INI;Ll;0;L;;;;;N;;;053B;;053B
+056C;ARMENIAN SMALL LETTER LIWN;Ll;0;L;;;;;N;;;053C;;053C
+056D;ARMENIAN SMALL LETTER XEH;Ll;0;L;;;;;N;;;053D;;053D
+056E;ARMENIAN SMALL LETTER CA;Ll;0;L;;;;;N;;;053E;;053E
+056F;ARMENIAN SMALL LETTER KEN;Ll;0;L;;;;;N;;;053F;;053F
+0570;ARMENIAN SMALL LETTER HO;Ll;0;L;;;;;N;;;0540;;0540
+0571;ARMENIAN SMALL LETTER JA;Ll;0;L;;;;;N;;;0541;;0541
+0572;ARMENIAN SMALL LETTER GHAD;Ll;0;L;;;;;N;ARMENIAN SMALL LETTER LAD;;0542;;0542
+0573;ARMENIAN SMALL LETTER CHEH;Ll;0;L;;;;;N;;;0543;;0543
+0574;ARMENIAN SMALL LETTER MEN;Ll;0;L;;;;;N;;;0544;;0544
+0575;ARMENIAN SMALL LETTER YI;Ll;0;L;;;;;N;;;0545;;0545
+0576;ARMENIAN SMALL LETTER NOW;Ll;0;L;;;;;N;;;0546;;0546
+0577;ARMENIAN SMALL LETTER SHA;Ll;0;L;;;;;N;;;0547;;0547
+0578;ARMENIAN SMALL LETTER VO;Ll;0;L;;;;;N;;;0548;;0548
+0579;ARMENIAN SMALL LETTER CHA;Ll;0;L;;;;;N;;;0549;;0549
+057A;ARMENIAN SMALL LETTER PEH;Ll;0;L;;;;;N;;;054A;;054A
+057B;ARMENIAN SMALL LETTER JHEH;Ll;0;L;;;;;N;;;054B;;054B
+057C;ARMENIAN SMALL LETTER RA;Ll;0;L;;;;;N;;;054C;;054C
+057D;ARMENIAN SMALL LETTER SEH;Ll;0;L;;;;;N;;;054D;;054D
+057E;ARMENIAN SMALL LETTER VEW;Ll;0;L;;;;;N;;;054E;;054E
+057F;ARMENIAN SMALL LETTER TIWN;Ll;0;L;;;;;N;;;054F;;054F
+0580;ARMENIAN SMALL LETTER REH;Ll;0;L;;;;;N;;;0550;;0550
+0581;ARMENIAN SMALL LETTER CO;Ll;0;L;;;;;N;;;0551;;0551
+0582;ARMENIAN SMALL LETTER YIWN;Ll;0;L;;;;;N;;;0552;;0552
+0583;ARMENIAN SMALL LETTER PIWR;Ll;0;L;;;;;N;;;0553;;0553
+0584;ARMENIAN SMALL LETTER KEH;Ll;0;L;;;;;N;;;0554;;0554
+0585;ARMENIAN SMALL LETTER OH;Ll;0;L;;;;;N;;;0555;;0555
+0586;ARMENIAN SMALL LETTER FEH;Ll;0;L;;;;;N;;;0556;;0556
+0587;ARMENIAN SMALL LIGATURE ECH YIWN;Ll;0;L;<compat> 0565 0582;;;;N;;;;;
+0589;ARMENIAN FULL STOP;Po;0;L;;;;;N;ARMENIAN PERIOD;;;;
+058A;ARMENIAN HYPHEN;Pd;0;ON;;;;;N;;;;;
+058F;ARMENIAN DRAM SIGN;Sc;0;ET;;;;;N;;;;;
+0591;HEBREW ACCENT ETNAHTA;Mn;220;NSM;;;;;N;;;;;
+0592;HEBREW ACCENT SEGOL;Mn;230;NSM;;;;;N;;;;;
+0593;HEBREW ACCENT SHALSHELET;Mn;230;NSM;;;;;N;;;;;
+0594;HEBREW ACCENT ZAQEF QATAN;Mn;230;NSM;;;;;N;;;;;
+0595;HEBREW ACCENT ZAQEF GADOL;Mn;230;NSM;;;;;N;;;;;
+0596;HEBREW ACCENT TIPEHA;Mn;220;NSM;;;;;N;;;;;
+0597;HEBREW ACCENT REVIA;Mn;230;NSM;;;;;N;;;;;
+0598;HEBREW ACCENT ZARQA;Mn;230;NSM;;;;;N;;;;;
+0599;HEBREW ACCENT PASHTA;Mn;230;NSM;;;;;N;;;;;
+059A;HEBREW ACCENT YETIV;Mn;222;NSM;;;;;N;;;;;
+059B;HEBREW ACCENT TEVIR;Mn;220;NSM;;;;;N;;;;;
+059C;HEBREW ACCENT GERESH;Mn;230;NSM;;;;;N;;;;;
+059D;HEBREW ACCENT GERESH MUQDAM;Mn;230;NSM;;;;;N;;;;;
+059E;HEBREW ACCENT GERSHAYIM;Mn;230;NSM;;;;;N;;;;;
+059F;HEBREW ACCENT QARNEY PARA;Mn;230;NSM;;;;;N;;;;;
+05A0;HEBREW ACCENT TELISHA GEDOLA;Mn;230;NSM;;;;;N;;;;;
+05A1;HEBREW ACCENT PAZER;Mn;230;NSM;;;;;N;;;;;
+05A2;HEBREW ACCENT ATNAH HAFUKH;Mn;220;NSM;;;;;N;;;;;
+05A3;HEBREW ACCENT MUNAH;Mn;220;NSM;;;;;N;;;;;
+05A4;HEBREW ACCENT MAHAPAKH;Mn;220;NSM;;;;;N;;;;;
+05A5;HEBREW ACCENT MERKHA;Mn;220;NSM;;;;;N;;;;;
+05A6;HEBREW ACCENT MERKHA KEFULA;Mn;220;NSM;;;;;N;;;;;
+05A7;HEBREW ACCENT DARGA;Mn;220;NSM;;;;;N;;;;;
+05A8;HEBREW ACCENT QADMA;Mn;230;NSM;;;;;N;;;;;
+05A9;HEBREW ACCENT TELISHA QETANA;Mn;230;NSM;;;;;N;;;;;
+05AA;HEBREW ACCENT YERAH BEN YOMO;Mn;220;NSM;;;;;N;;;;;
+05AB;HEBREW ACCENT OLE;Mn;230;NSM;;;;;N;;;;;
+05AC;HEBREW ACCENT ILUY;Mn;230;NSM;;;;;N;;;;;
+05AD;HEBREW ACCENT DEHI;Mn;222;NSM;;;;;N;;;;;
+05AE;HEBREW ACCENT ZINOR;Mn;228;NSM;;;;;N;;;;;
+05AF;HEBREW MARK MASORA CIRCLE;Mn;230;NSM;;;;;N;;;;;
+05B0;HEBREW POINT SHEVA;Mn;10;NSM;;;;;N;;;;;
+05B1;HEBREW POINT HATAF SEGOL;Mn;11;NSM;;;;;N;;;;;
+05B2;HEBREW POINT HATAF PATAH;Mn;12;NSM;;;;;N;;;;;
+05B3;HEBREW POINT HATAF QAMATS;Mn;13;NSM;;;;;N;;;;;
+05B4;HEBREW POINT HIRIQ;Mn;14;NSM;;;;;N;;;;;
+05B5;HEBREW POINT TSERE;Mn;15;NSM;;;;;N;;;;;
+05B6;HEBREW POINT SEGOL;Mn;16;NSM;;;;;N;;;;;
+05B7;HEBREW POINT PATAH;Mn;17;NSM;;;;;N;;;;;
+05B8;HEBREW POINT QAMATS;Mn;18;NSM;;;;;N;;;;;
+05B9;HEBREW POINT HOLAM;Mn;19;NSM;;;;;N;;;;;
+05BA;HEBREW POINT HOLAM HASER FOR VAV;Mn;19;NSM;;;;;N;;;;;
+05BB;HEBREW POINT QUBUTS;Mn;20;NSM;;;;;N;;;;;
+05BC;HEBREW POINT DAGESH OR MAPIQ;Mn;21;NSM;;;;;N;HEBREW POINT DAGESH;;;;
+05BD;HEBREW POINT METEG;Mn;22;NSM;;;;;N;;;;;
+05BE;HEBREW PUNCTUATION MAQAF;Pd;0;R;;;;;N;;;;;
+05BF;HEBREW POINT RAFE;Mn;23;NSM;;;;;N;;;;;
+05C0;HEBREW PUNCTUATION PASEQ;Po;0;R;;;;;N;HEBREW POINT PASEQ;;;;
+05C1;HEBREW POINT SHIN DOT;Mn;24;NSM;;;;;N;;;;;
+05C2;HEBREW POINT SIN DOT;Mn;25;NSM;;;;;N;;;;;
+05C3;HEBREW PUNCTUATION SOF PASUQ;Po;0;R;;;;;N;;;;;
+05C4;HEBREW MARK UPPER DOT;Mn;230;NSM;;;;;N;;;;;
+05C5;HEBREW MARK LOWER DOT;Mn;220;NSM;;;;;N;;;;;
+05C6;HEBREW PUNCTUATION NUN HAFUKHA;Po;0;R;;;;;N;;;;;
+05C7;HEBREW POINT QAMATS QATAN;Mn;18;NSM;;;;;N;;;;;
+05D0;HEBREW LETTER ALEF;Lo;0;R;;;;;N;;;;;
+05D1;HEBREW LETTER BET;Lo;0;R;;;;;N;;;;;
+05D2;HEBREW LETTER GIMEL;Lo;0;R;;;;;N;;;;;
+05D3;HEBREW LETTER DALET;Lo;0;R;;;;;N;;;;;
+05D4;HEBREW LETTER HE;Lo;0;R;;;;;N;;;;;
+05D5;HEBREW LETTER VAV;Lo;0;R;;;;;N;;;;;
+05D6;HEBREW LETTER ZAYIN;Lo;0;R;;;;;N;;;;;
+05D7;HEBREW LETTER HET;Lo;0;R;;;;;N;;;;;
+05D8;HEBREW LETTER TET;Lo;0;R;;;;;N;;;;;
+05D9;HEBREW LETTER YOD;Lo;0;R;;;;;N;;;;;
+05DA;HEBREW LETTER FINAL KAF;Lo;0;R;;;;;N;;;;;
+05DB;HEBREW LETTER KAF;Lo;0;R;;;;;N;;;;;
+05DC;HEBREW LETTER LAMED;Lo;0;R;;;;;N;;;;;
+05DD;HEBREW LETTER FINAL MEM;Lo;0;R;;;;;N;;;;;
+05DE;HEBREW LETTER MEM;Lo;0;R;;;;;N;;;;;
+05DF;HEBREW LETTER FINAL NUN;Lo;0;R;;;;;N;;;;;
+05E0;HEBREW LETTER NUN;Lo;0;R;;;;;N;;;;;
+05E1;HEBREW LETTER SAMEKH;Lo;0;R;;;;;N;;;;;
+05E2;HEBREW LETTER AYIN;Lo;0;R;;;;;N;;;;;
+05E3;HEBREW LETTER FINAL PE;Lo;0;R;;;;;N;;;;;
+05E4;HEBREW LETTER PE;Lo;0;R;;;;;N;;;;;
+05E5;HEBREW LETTER FINAL TSADI;Lo;0;R;;;;;N;;;;;
+05E6;HEBREW LETTER TSADI;Lo;0;R;;;;;N;;;;;
+05E7;HEBREW LETTER QOF;Lo;0;R;;;;;N;;;;;
+05E8;HEBREW LETTER RESH;Lo;0;R;;;;;N;;;;;
+05E9;HEBREW LETTER SHIN;Lo;0;R;;;;;N;;;;;
+05EA;HEBREW LETTER TAV;Lo;0;R;;;;;N;;;;;
+05F0;HEBREW LIGATURE YIDDISH DOUBLE VAV;Lo;0;R;;;;;N;HEBREW LETTER DOUBLE VAV;;;;
+05F1;HEBREW LIGATURE YIDDISH VAV YOD;Lo;0;R;;;;;N;HEBREW LETTER VAV YOD;;;;
+05F2;HEBREW LIGATURE YIDDISH DOUBLE YOD;Lo;0;R;;;;;N;HEBREW LETTER DOUBLE YOD;;;;
+05F3;HEBREW PUNCTUATION GERESH;Po;0;R;;;;;N;;;;;
+05F4;HEBREW PUNCTUATION GERSHAYIM;Po;0;R;;;;;N;;;;;
+0600;ARABIC NUMBER SIGN;Cf;0;AN;;;;;N;;;;;
+0601;ARABIC SIGN SANAH;Cf;0;AN;;;;;N;;;;;
+0602;ARABIC FOOTNOTE MARKER;Cf;0;AN;;;;;N;;;;;
+0603;ARABIC SIGN SAFHA;Cf;0;AN;;;;;N;;;;;
+0604;ARABIC SIGN SAMVAT;Cf;0;AN;;;;;N;;;;;
+0606;ARABIC-INDIC CUBE ROOT;Sm;0;ON;;;;;N;;;;;
+0607;ARABIC-INDIC FOURTH ROOT;Sm;0;ON;;;;;N;;;;;
+0608;ARABIC RAY;Sm;0;AL;;;;;N;;;;;
+0609;ARABIC-INDIC PER MILLE SIGN;Po;0;ET;;;;;N;;;;;
+060A;ARABIC-INDIC PER TEN THOUSAND SIGN;Po;0;ET;;;;;N;;;;;
+060B;AFGHANI SIGN;Sc;0;AL;;;;;N;;;;;
+060C;ARABIC COMMA;Po;0;CS;;;;;N;;;;;
+060D;ARABIC DATE SEPARATOR;Po;0;AL;;;;;N;;;;;
+060E;ARABIC POETIC VERSE SIGN;So;0;ON;;;;;N;;;;;
+060F;ARABIC SIGN MISRA;So;0;ON;;;;;N;;;;;
+0610;ARABIC SIGN SALLALLAHOU ALAYHE WASSALLAM;Mn;230;NSM;;;;;N;;;;;
+0611;ARABIC SIGN ALAYHE ASSALLAM;Mn;230;NSM;;;;;N;;;;;
+0612;ARABIC SIGN RAHMATULLAH ALAYHE;Mn;230;NSM;;;;;N;;;;;
+0613;ARABIC SIGN RADI ALLAHOU ANHU;Mn;230;NSM;;;;;N;;;;;
+0614;ARABIC SIGN TAKHALLUS;Mn;230;NSM;;;;;N;;;;;
+0615;ARABIC SMALL HIGH TAH;Mn;230;NSM;;;;;N;;;;;
+0616;ARABIC SMALL HIGH LIGATURE ALEF WITH LAM WITH YEH;Mn;230;NSM;;;;;N;;;;;
+0617;ARABIC SMALL HIGH ZAIN;Mn;230;NSM;;;;;N;;;;;
+0618;ARABIC SMALL FATHA;Mn;30;NSM;;;;;N;;;;;
+0619;ARABIC SMALL DAMMA;Mn;31;NSM;;;;;N;;;;;
+061A;ARABIC SMALL KASRA;Mn;32;NSM;;;;;N;;;;;
+061B;ARABIC SEMICOLON;Po;0;AL;;;;;N;;;;;
+061E;ARABIC TRIPLE DOT PUNCTUATION MARK;Po;0;AL;;;;;N;;;;;
+061F;ARABIC QUESTION MARK;Po;0;AL;;;;;N;;;;;
+0620;ARABIC LETTER KASHMIRI YEH;Lo;0;AL;;;;;N;;;;;
+0621;ARABIC LETTER HAMZA;Lo;0;AL;;;;;N;ARABIC LETTER HAMZAH;;;;
+0622;ARABIC LETTER ALEF WITH MADDA ABOVE;Lo;0;AL;0627 0653;;;;N;ARABIC LETTER MADDAH ON ALEF;;;;
+0623;ARABIC LETTER ALEF WITH HAMZA ABOVE;Lo;0;AL;0627 0654;;;;N;ARABIC LETTER HAMZAH ON ALEF;;;;
+0624;ARABIC LETTER WAW WITH HAMZA ABOVE;Lo;0;AL;0648 0654;;;;N;ARABIC LETTER HAMZAH ON WAW;;;;
+0625;ARABIC LETTER ALEF WITH HAMZA BELOW;Lo;0;AL;0627 0655;;;;N;ARABIC LETTER HAMZAH UNDER ALEF;;;;
+0626;ARABIC LETTER YEH WITH HAMZA ABOVE;Lo;0;AL;064A 0654;;;;N;ARABIC LETTER HAMZAH ON YA;;;;
+0627;ARABIC LETTER ALEF;Lo;0;AL;;;;;N;;;;;
+0628;ARABIC LETTER BEH;Lo;0;AL;;;;;N;ARABIC LETTER BAA;;;;
+0629;ARABIC LETTER TEH MARBUTA;Lo;0;AL;;;;;N;ARABIC LETTER TAA MARBUTAH;;;;
+062A;ARABIC LETTER TEH;Lo;0;AL;;;;;N;ARABIC LETTER TAA;;;;
+062B;ARABIC LETTER THEH;Lo;0;AL;;;;;N;ARABIC LETTER THAA;;;;
+062C;ARABIC LETTER JEEM;Lo;0;AL;;;;;N;;;;;
+062D;ARABIC LETTER HAH;Lo;0;AL;;;;;N;ARABIC LETTER HAA;;;;
+062E;ARABIC LETTER KHAH;Lo;0;AL;;;;;N;ARABIC LETTER KHAA;;;;
+062F;ARABIC LETTER DAL;Lo;0;AL;;;;;N;;;;;
+0630;ARABIC LETTER THAL;Lo;0;AL;;;;;N;;;;;
+0631;ARABIC LETTER REH;Lo;0;AL;;;;;N;ARABIC LETTER RA;;;;
+0632;ARABIC LETTER ZAIN;Lo;0;AL;;;;;N;;;;;
+0633;ARABIC LETTER SEEN;Lo;0;AL;;;;;N;;;;;
+0634;ARABIC LETTER SHEEN;Lo;0;AL;;;;;N;;;;;
+0635;ARABIC LETTER SAD;Lo;0;AL;;;;;N;;;;;
+0636;ARABIC LETTER DAD;Lo;0;AL;;;;;N;;;;;
+0637;ARABIC LETTER TAH;Lo;0;AL;;;;;N;;;;;
+0638;ARABIC LETTER ZAH;Lo;0;AL;;;;;N;ARABIC LETTER DHAH;;;;
+0639;ARABIC LETTER AIN;Lo;0;AL;;;;;N;;;;;
+063A;ARABIC LETTER GHAIN;Lo;0;AL;;;;;N;;;;;
+063B;ARABIC LETTER KEHEH WITH TWO DOTS ABOVE;Lo;0;AL;;;;;N;;;;;
+063C;ARABIC LETTER KEHEH WITH THREE DOTS BELOW;Lo;0;AL;;;;;N;;;;;
+063D;ARABIC LETTER FARSI YEH WITH INVERTED V;Lo;0;AL;;;;;N;;;;;
+063E;ARABIC LETTER FARSI YEH WITH TWO DOTS ABOVE;Lo;0;AL;;;;;N;;;;;
+063F;ARABIC LETTER FARSI YEH WITH THREE DOTS ABOVE;Lo;0;AL;;;;;N;;;;;
+0640;ARABIC TATWEEL;Lm;0;AL;;;;;N;;;;;
+0641;ARABIC LETTER FEH;Lo;0;AL;;;;;N;ARABIC LETTER FA;;;;
+0642;ARABIC LETTER QAF;Lo;0;AL;;;;;N;;;;;
+0643;ARABIC LETTER KAF;Lo;0;AL;;;;;N;ARABIC LETTER CAF;;;;
+0644;ARABIC LETTER LAM;Lo;0;AL;;;;;N;;;;;
+0645;ARABIC LETTER MEEM;Lo;0;AL;;;;;N;;;;;
+0646;ARABIC LETTER NOON;Lo;0;AL;;;;;N;;;;;
+0647;ARABIC LETTER HEH;Lo;0;AL;;;;;N;ARABIC LETTER HA;;;;
+0648;ARABIC LETTER WAW;Lo;0;AL;;;;;N;;;;;
+0649;ARABIC LETTER ALEF MAKSURA;Lo;0;AL;;;;;N;ARABIC LETTER ALEF MAQSURAH;;;;
+064A;ARABIC LETTER YEH;Lo;0;AL;;;;;N;ARABIC LETTER YA;;;;
+064B;ARABIC FATHATAN;Mn;27;NSM;;;;;N;;;;;
+064C;ARABIC DAMMATAN;Mn;28;NSM;;;;;N;;;;;
+064D;ARABIC KASRATAN;Mn;29;NSM;;;;;N;;;;;
+064E;ARABIC FATHA;Mn;30;NSM;;;;;N;ARABIC FATHAH;;;;
+064F;ARABIC DAMMA;Mn;31;NSM;;;;;N;ARABIC DAMMAH;;;;
+0650;ARABIC KASRA;Mn;32;NSM;;;;;N;ARABIC KASRAH;;;;
+0651;ARABIC SHADDA;Mn;33;NSM;;;;;N;ARABIC SHADDAH;;;;
+0652;ARABIC SUKUN;Mn;34;NSM;;;;;N;;;;;
+0653;ARABIC MADDAH ABOVE;Mn;230;NSM;;;;;N;;;;;
+0654;ARABIC HAMZA ABOVE;Mn;230;NSM;;;;;N;;;;;
+0655;ARABIC HAMZA BELOW;Mn;220;NSM;;;;;N;;;;;
+0656;ARABIC SUBSCRIPT ALEF;Mn;220;NSM;;;;;N;;;;;
+0657;ARABIC INVERTED DAMMA;Mn;230;NSM;;;;;N;;;;;
+0658;ARABIC MARK NOON GHUNNA;Mn;230;NSM;;;;;N;;;;;
+0659;ARABIC ZWARAKAY;Mn;230;NSM;;;;;N;;;;;
+065A;ARABIC VOWEL SIGN SMALL V ABOVE;Mn;230;NSM;;;;;N;;;;;
+065B;ARABIC VOWEL SIGN INVERTED SMALL V ABOVE;Mn;230;NSM;;;;;N;;;;;
+065C;ARABIC VOWEL SIGN DOT BELOW;Mn;220;NSM;;;;;N;;;;;
+065D;ARABIC REVERSED DAMMA;Mn;230;NSM;;;;;N;;;;;
+065E;ARABIC FATHA WITH TWO DOTS;Mn;230;NSM;;;;;N;;;;;
+065F;ARABIC WAVY HAMZA BELOW;Mn;220;NSM;;;;;N;;;;;
+0660;ARABIC-INDIC DIGIT ZERO;Nd;0;AN;;0;0;0;N;;;;;
+0661;ARABIC-INDIC DIGIT ONE;Nd;0;AN;;1;1;1;N;;;;;
+0662;ARABIC-INDIC DIGIT TWO;Nd;0;AN;;2;2;2;N;;;;;
+0663;ARABIC-INDIC DIGIT THREE;Nd;0;AN;;3;3;3;N;;;;;
+0664;ARABIC-INDIC DIGIT FOUR;Nd;0;AN;;4;4;4;N;;;;;
+0665;ARABIC-INDIC DIGIT FIVE;Nd;0;AN;;5;5;5;N;;;;;
+0666;ARABIC-INDIC DIGIT SIX;Nd;0;AN;;6;6;6;N;;;;;
+0667;ARABIC-INDIC DIGIT SEVEN;Nd;0;AN;;7;7;7;N;;;;;
+0668;ARABIC-INDIC DIGIT EIGHT;Nd;0;AN;;8;8;8;N;;;;;
+0669;ARABIC-INDIC DIGIT NINE;Nd;0;AN;;9;9;9;N;;;;;
+066A;ARABIC PERCENT SIGN;Po;0;ET;;;;;N;;;;;
+066B;ARABIC DECIMAL SEPARATOR;Po;0;AN;;;;;N;;;;;
+066C;ARABIC THOUSANDS SEPARATOR;Po;0;AN;;;;;N;;;;;
+066D;ARABIC FIVE POINTED STAR;Po;0;AL;;;;;N;;;;;
+066E;ARABIC LETTER DOTLESS BEH;Lo;0;AL;;;;;N;;;;;
+066F;ARABIC LETTER DOTLESS QAF;Lo;0;AL;;;;;N;;;;;
+0670;ARABIC LETTER SUPERSCRIPT ALEF;Mn;35;NSM;;;;;N;ARABIC ALEF ABOVE;;;;
+0671;ARABIC LETTER ALEF WASLA;Lo;0;AL;;;;;N;ARABIC LETTER HAMZAT WASL ON ALEF;;;;
+0672;ARABIC LETTER ALEF WITH WAVY HAMZA ABOVE;Lo;0;AL;;;;;N;ARABIC LETTER WAVY HAMZAH ON ALEF;;;;
+0673;ARABIC LETTER ALEF WITH WAVY HAMZA BELOW;Lo;0;AL;;;;;N;ARABIC LETTER WAVY HAMZAH UNDER ALEF;;;;
+0674;ARABIC LETTER HIGH HAMZA;Lo;0;AL;;;;;N;ARABIC LETTER HIGH HAMZAH;;;;
+0675;ARABIC LETTER HIGH HAMZA ALEF;Lo;0;AL;<compat> 0627 0674;;;;N;ARABIC LETTER HIGH HAMZAH ALEF;;;;
+0676;ARABIC LETTER HIGH HAMZA WAW;Lo;0;AL;<compat> 0648 0674;;;;N;ARABIC LETTER HIGH HAMZAH WAW;;;;
+0677;ARABIC LETTER U WITH HAMZA ABOVE;Lo;0;AL;<compat> 06C7 0674;;;;N;ARABIC LETTER HIGH HAMZAH WAW WITH DAMMAH;;;;
+0678;ARABIC LETTER HIGH HAMZA YEH;Lo;0;AL;<compat> 064A 0674;;;;N;ARABIC LETTER HIGH HAMZAH YA;;;;
+0679;ARABIC LETTER TTEH;Lo;0;AL;;;;;N;ARABIC LETTER TAA WITH SMALL TAH;;;;
+067A;ARABIC LETTER TTEHEH;Lo;0;AL;;;;;N;ARABIC LETTER TAA WITH TWO DOTS VERTICAL ABOVE;;;;
+067B;ARABIC LETTER BEEH;Lo;0;AL;;;;;N;ARABIC LETTER BAA WITH TWO DOTS VERTICAL BELOW;;;;
+067C;ARABIC LETTER TEH WITH RING;Lo;0;AL;;;;;N;ARABIC LETTER TAA WITH RING;;;;
+067D;ARABIC LETTER TEH WITH THREE DOTS ABOVE DOWNWARDS;Lo;0;AL;;;;;N;ARABIC LETTER TAA WITH THREE DOTS ABOVE DOWNWARD;;;;
+067E;ARABIC LETTER PEH;Lo;0;AL;;;;;N;ARABIC LETTER TAA WITH THREE DOTS BELOW;;;;
+067F;ARABIC LETTER TEHEH;Lo;0;AL;;;;;N;ARABIC LETTER TAA WITH FOUR DOTS ABOVE;;;;
+0680;ARABIC LETTER BEHEH;Lo;0;AL;;;;;N;ARABIC LETTER BAA WITH FOUR DOTS BELOW;;;;
+0681;ARABIC LETTER HAH WITH HAMZA ABOVE;Lo;0;AL;;;;;N;ARABIC LETTER HAMZAH ON HAA;;;;
+0682;ARABIC LETTER HAH WITH TWO DOTS VERTICAL ABOVE;Lo;0;AL;;;;;N;ARABIC LETTER HAA WITH TWO DOTS VERTICAL ABOVE;;;;
+0683;ARABIC LETTER NYEH;Lo;0;AL;;;;;N;ARABIC LETTER HAA WITH MIDDLE TWO DOTS;;;;
+0684;ARABIC LETTER DYEH;Lo;0;AL;;;;;N;ARABIC LETTER HAA WITH MIDDLE TWO DOTS VERTICAL;;;;
+0685;ARABIC LETTER HAH WITH THREE DOTS ABOVE;Lo;0;AL;;;;;N;ARABIC LETTER HAA WITH THREE DOTS ABOVE;;;;
+0686;ARABIC LETTER TCHEH;Lo;0;AL;;;;;N;ARABIC LETTER HAA WITH MIDDLE THREE DOTS DOWNWARD;;;;
+0687;ARABIC LETTER TCHEHEH;Lo;0;AL;;;;;N;ARABIC LETTER HAA WITH MIDDLE FOUR DOTS;;;;
+0688;ARABIC LETTER DDAL;Lo;0;AL;;;;;N;ARABIC LETTER DAL WITH SMALL TAH;;;;
+0689;ARABIC LETTER DAL WITH RING;Lo;0;AL;;;;;N;;;;;
+068A;ARABIC LETTER DAL WITH DOT BELOW;Lo;0;AL;;;;;N;;;;;
+068B;ARABIC LETTER DAL WITH DOT BELOW AND SMALL TAH;Lo;0;AL;;;;;N;;;;;
+068C;ARABIC LETTER DAHAL;Lo;0;AL;;;;;N;ARABIC LETTER DAL WITH TWO DOTS ABOVE;;;;
+068D;ARABIC LETTER DDAHAL;Lo;0;AL;;;;;N;ARABIC LETTER DAL WITH TWO DOTS BELOW;;;;
+068E;ARABIC LETTER DUL;Lo;0;AL;;;;;N;ARABIC LETTER DAL WITH THREE DOTS ABOVE;;;;
+068F;ARABIC LETTER DAL WITH THREE DOTS ABOVE DOWNWARDS;Lo;0;AL;;;;;N;ARABIC LETTER DAL WITH THREE DOTS ABOVE DOWNWARD;;;;
+0690;ARABIC LETTER DAL WITH FOUR DOTS ABOVE;Lo;0;AL;;;;;N;;;;;
+0691;ARABIC LETTER RREH;Lo;0;AL;;;;;N;ARABIC LETTER RA WITH SMALL TAH;;;;
+0692;ARABIC LETTER REH WITH SMALL V;Lo;0;AL;;;;;N;ARABIC LETTER RA WITH SMALL V;;;;
+0693;ARABIC LETTER REH WITH RING;Lo;0;AL;;;;;N;ARABIC LETTER RA WITH RING;;;;
+0694;ARABIC LETTER REH WITH DOT BELOW;Lo;0;AL;;;;;N;ARABIC LETTER RA WITH DOT BELOW;;;;
+0695;ARABIC LETTER REH WITH SMALL V BELOW;Lo;0;AL;;;;;N;ARABIC LETTER RA WITH SMALL V BELOW;;;;
+0696;ARABIC LETTER REH WITH DOT BELOW AND DOT ABOVE;Lo;0;AL;;;;;N;ARABIC LETTER RA WITH DOT BELOW AND DOT ABOVE;;;;
+0697;ARABIC LETTER REH WITH TWO DOTS ABOVE;Lo;0;AL;;;;;N;ARABIC LETTER RA WITH TWO DOTS ABOVE;;;;
+0698;ARABIC LETTER JEH;Lo;0;AL;;;;;N;ARABIC LETTER RA WITH THREE DOTS ABOVE;;;;
+0699;ARABIC LETTER REH WITH FOUR DOTS ABOVE;Lo;0;AL;;;;;N;ARABIC LETTER RA WITH FOUR DOTS ABOVE;;;;
+069A;ARABIC LETTER SEEN WITH DOT BELOW AND DOT ABOVE;Lo;0;AL;;;;;N;;;;;
+069B;ARABIC LETTER SEEN WITH THREE DOTS BELOW;Lo;0;AL;;;;;N;;;;;
+069C;ARABIC LETTER SEEN WITH THREE DOTS BELOW AND THREE DOTS ABOVE;Lo;0;AL;;;;;N;;;;;
+069D;ARABIC LETTER SAD WITH TWO DOTS BELOW;Lo;0;AL;;;;;N;;;;;
+069E;ARABIC LETTER SAD WITH THREE DOTS ABOVE;Lo;0;AL;;;;;N;;;;;
+069F;ARABIC LETTER TAH WITH THREE DOTS ABOVE;Lo;0;AL;;;;;N;;;;;
+06A0;ARABIC LETTER AIN WITH THREE DOTS ABOVE;Lo;0;AL;;;;;N;;;;;
+06A1;ARABIC LETTER DOTLESS FEH;Lo;0;AL;;;;;N;ARABIC LETTER DOTLESS FA;;;;
+06A2;ARABIC LETTER FEH WITH DOT MOVED BELOW;Lo;0;AL;;;;;N;ARABIC LETTER FA WITH DOT MOVED BELOW;;;;
+06A3;ARABIC LETTER FEH WITH DOT BELOW;Lo;0;AL;;;;;N;ARABIC LETTER FA WITH DOT BELOW;;;;
+06A4;ARABIC LETTER VEH;Lo;0;AL;;;;;N;ARABIC LETTER FA WITH THREE DOTS ABOVE;;;;
+06A5;ARABIC LETTER FEH WITH THREE DOTS BELOW;Lo;0;AL;;;;;N;ARABIC LETTER FA WITH THREE DOTS BELOW;;;;
+06A6;ARABIC LETTER PEHEH;Lo;0;AL;;;;;N;ARABIC LETTER FA WITH FOUR DOTS ABOVE;;;;
+06A7;ARABIC LETTER QAF WITH DOT ABOVE;Lo;0;AL;;;;;N;;;;;
+06A8;ARABIC LETTER QAF WITH THREE DOTS ABOVE;Lo;0;AL;;;;;N;;;;;
+06A9;ARABIC LETTER KEHEH;Lo;0;AL;;;;;N;ARABIC LETTER OPEN CAF;;;;
+06AA;ARABIC LETTER SWASH KAF;Lo;0;AL;;;;;N;ARABIC LETTER SWASH CAF;;;;
+06AB;ARABIC LETTER KAF WITH RING;Lo;0;AL;;;;;N;ARABIC LETTER CAF WITH RING;;;;
+06AC;ARABIC LETTER KAF WITH DOT ABOVE;Lo;0;AL;;;;;N;ARABIC LETTER CAF WITH DOT ABOVE;;;;
+06AD;ARABIC LETTER NG;Lo;0;AL;;;;;N;ARABIC LETTER CAF WITH THREE DOTS ABOVE;;;;
+06AE;ARABIC LETTER KAF WITH THREE DOTS BELOW;Lo;0;AL;;;;;N;ARABIC LETTER CAF WITH THREE DOTS BELOW;;;;
+06AF;ARABIC LETTER GAF;Lo;0;AL;;;;;N;;;;;
+06B0;ARABIC LETTER GAF WITH RING;Lo;0;AL;;;;;N;;;;;
+06B1;ARABIC LETTER NGOEH;Lo;0;AL;;;;;N;ARABIC LETTER GAF WITH TWO DOTS ABOVE;;;;
+06B2;ARABIC LETTER GAF WITH TWO DOTS BELOW;Lo;0;AL;;;;;N;;;;;
+06B3;ARABIC LETTER GUEH;Lo;0;AL;;;;;N;ARABIC LETTER GAF WITH TWO DOTS VERTICAL BELOW;;;;
+06B4;ARABIC LETTER GAF WITH THREE DOTS ABOVE;Lo;0;AL;;;;;N;;;;;
+06B5;ARABIC LETTER LAM WITH SMALL V;Lo;0;AL;;;;;N;;;;;
+06B6;ARABIC LETTER LAM WITH DOT ABOVE;Lo;0;AL;;;;;N;;;;;
+06B7;ARABIC LETTER LAM WITH THREE DOTS ABOVE;Lo;0;AL;;;;;N;;;;;
+06B8;ARABIC LETTER LAM WITH THREE DOTS BELOW;Lo;0;AL;;;;;N;;;;;
+06B9;ARABIC LETTER NOON WITH DOT BELOW;Lo;0;AL;;;;;N;;;;;
+06BA;ARABIC LETTER NOON GHUNNA;Lo;0;AL;;;;;N;ARABIC LETTER DOTLESS NOON;;;;
+06BB;ARABIC LETTER RNOON;Lo;0;AL;;;;;N;ARABIC LETTER DOTLESS NOON WITH SMALL TAH;;;;
+06BC;ARABIC LETTER NOON WITH RING;Lo;0;AL;;;;;N;;;;;
+06BD;ARABIC LETTER NOON WITH THREE DOTS ABOVE;Lo;0;AL;;;;;N;;;;;
+06BE;ARABIC LETTER HEH DOACHASHMEE;Lo;0;AL;;;;;N;ARABIC LETTER KNOTTED HA;;;;
+06BF;ARABIC LETTER TCHEH WITH DOT ABOVE;Lo;0;AL;;;;;N;;;;;
+06C0;ARABIC LETTER HEH WITH YEH ABOVE;Lo;0;AL;06D5 0654;;;;N;ARABIC LETTER HAMZAH ON HA;;;;
+06C1;ARABIC LETTER HEH GOAL;Lo;0;AL;;;;;N;ARABIC LETTER HA GOAL;;;;
+06C2;ARABIC LETTER HEH GOAL WITH HAMZA ABOVE;Lo;0;AL;06C1 0654;;;;N;ARABIC LETTER HAMZAH ON HA GOAL;;;;
+06C3;ARABIC LETTER TEH MARBUTA GOAL;Lo;0;AL;;;;;N;ARABIC LETTER TAA MARBUTAH GOAL;;;;
+06C4;ARABIC LETTER WAW WITH RING;Lo;0;AL;;;;;N;;;;;
+06C5;ARABIC LETTER KIRGHIZ OE;Lo;0;AL;;;;;N;ARABIC LETTER WAW WITH BAR;;;;
+06C6;ARABIC LETTER OE;Lo;0;AL;;;;;N;ARABIC LETTER WAW WITH SMALL V;;;;
+06C7;ARABIC LETTER U;Lo;0;AL;;;;;N;ARABIC LETTER WAW WITH DAMMAH;;;;
+06C8;ARABIC LETTER YU;Lo;0;AL;;;;;N;ARABIC LETTER WAW WITH ALEF ABOVE;;;;
+06C9;ARABIC LETTER KIRGHIZ YU;Lo;0;AL;;;;;N;ARABIC LETTER WAW WITH INVERTED SMALL V;;;;
+06CA;ARABIC LETTER WAW WITH TWO DOTS ABOVE;Lo;0;AL;;;;;N;;;;;
+06CB;ARABIC LETTER VE;Lo;0;AL;;;;;N;ARABIC LETTER WAW WITH THREE DOTS ABOVE;;;;
+06CC;ARABIC LETTER FARSI YEH;Lo;0;AL;;;;;N;ARABIC LETTER DOTLESS YA;;;;
+06CD;ARABIC LETTER YEH WITH TAIL;Lo;0;AL;;;;;N;ARABIC LETTER YA WITH TAIL;;;;
+06CE;ARABIC LETTER YEH WITH SMALL V;Lo;0;AL;;;;;N;ARABIC LETTER YA WITH SMALL V;;;;
+06CF;ARABIC LETTER WAW WITH DOT ABOVE;Lo;0;AL;;;;;N;;;;;
+06D0;ARABIC LETTER E;Lo;0;AL;;;;;N;ARABIC LETTER YA WITH TWO DOTS VERTICAL BELOW;;;;
+06D1;ARABIC LETTER YEH WITH THREE DOTS BELOW;Lo;0;AL;;;;;N;ARABIC LETTER YA WITH THREE DOTS BELOW;;;;
+06D2;ARABIC LETTER YEH BARREE;Lo;0;AL;;;;;N;ARABIC LETTER YA BARREE;;;;
+06D3;ARABIC LETTER YEH BARREE WITH HAMZA ABOVE;Lo;0;AL;06D2 0654;;;;N;ARABIC LETTER HAMZAH ON YA BARREE;;;;
+06D4;ARABIC FULL STOP;Po;0;AL;;;;;N;ARABIC PERIOD;;;;
+06D5;ARABIC LETTER AE;Lo;0;AL;;;;;N;;;;;
+06D6;ARABIC SMALL HIGH LIGATURE SAD WITH LAM WITH ALEF MAKSURA;Mn;230;NSM;;;;;N;;;;;
+06D7;ARABIC SMALL HIGH LIGATURE QAF WITH LAM WITH ALEF MAKSURA;Mn;230;NSM;;;;;N;;;;;
+06D8;ARABIC SMALL HIGH MEEM INITIAL FORM;Mn;230;NSM;;;;;N;;;;;
+06D9;ARABIC SMALL HIGH LAM ALEF;Mn;230;NSM;;;;;N;;;;;
+06DA;ARABIC SMALL HIGH JEEM;Mn;230;NSM;;;;;N;;;;;
+06DB;ARABIC SMALL HIGH THREE DOTS;Mn;230;NSM;;;;;N;;;;;
+06DC;ARABIC SMALL HIGH SEEN;Mn;230;NSM;;;;;N;;;;;
+06DD;ARABIC END OF AYAH;Cf;0;AN;;;;;N;;;;;
+06DE;ARABIC START OF RUB EL HIZB;So;0;ON;;;;;N;;;;;
+06DF;ARABIC SMALL HIGH ROUNDED ZERO;Mn;230;NSM;;;;;N;;;;;
+06E0;ARABIC SMALL HIGH UPRIGHT RECTANGULAR ZERO;Mn;230;NSM;;;;;N;;;;;
+06E1;ARABIC SMALL HIGH DOTLESS HEAD OF KHAH;Mn;230;NSM;;;;;N;;;;;
+06E2;ARABIC SMALL HIGH MEEM ISOLATED FORM;Mn;230;NSM;;;;;N;;;;;
+06E3;ARABIC SMALL LOW SEEN;Mn;220;NSM;;;;;N;;;;;
+06E4;ARABIC SMALL HIGH MADDA;Mn;230;NSM;;;;;N;;;;;
+06E5;ARABIC SMALL WAW;Lm;0;AL;;;;;N;;;;;
+06E6;ARABIC SMALL YEH;Lm;0;AL;;;;;N;;;;;
+06E7;ARABIC SMALL HIGH YEH;Mn;230;NSM;;;;;N;;;;;
+06E8;ARABIC SMALL HIGH NOON;Mn;230;NSM;;;;;N;;;;;
+06E9;ARABIC PLACE OF SAJDAH;So;0;ON;;;;;N;;;;;
+06EA;ARABIC EMPTY CENTRE LOW STOP;Mn;220;NSM;;;;;N;;;;;
+06EB;ARABIC EMPTY CENTRE HIGH STOP;Mn;230;NSM;;;;;N;;;;;
+06EC;ARABIC ROUNDED HIGH STOP WITH FILLED CENTRE;Mn;230;NSM;;;;;N;;;;;
+06ED;ARABIC SMALL LOW MEEM;Mn;220;NSM;;;;;N;;;;;
+06EE;ARABIC LETTER DAL WITH INVERTED V;Lo;0;AL;;;;;N;;;;;
+06EF;ARABIC LETTER REH WITH INVERTED V;Lo;0;AL;;;;;N;;;;;
+06F0;EXTENDED ARABIC-INDIC DIGIT ZERO;Nd;0;EN;;0;0;0;N;EASTERN ARABIC-INDIC DIGIT ZERO;;;;
+06F1;EXTENDED ARABIC-INDIC DIGIT ONE;Nd;0;EN;;1;1;1;N;EASTERN ARABIC-INDIC DIGIT ONE;;;;
+06F2;EXTENDED ARABIC-INDIC DIGIT TWO;Nd;0;EN;;2;2;2;N;EASTERN ARABIC-INDIC DIGIT TWO;;;;
+06F3;EXTENDED ARABIC-INDIC DIGIT THREE;Nd;0;EN;;3;3;3;N;EASTERN ARABIC-INDIC DIGIT THREE;;;;
+06F4;EXTENDED ARABIC-INDIC DIGIT FOUR;Nd;0;EN;;4;4;4;N;EASTERN ARABIC-INDIC DIGIT FOUR;;;;
+06F5;EXTENDED ARABIC-INDIC DIGIT FIVE;Nd;0;EN;;5;5;5;N;EASTERN ARABIC-INDIC DIGIT FIVE;;;;
+06F6;EXTENDED ARABIC-INDIC DIGIT SIX;Nd;0;EN;;6;6;6;N;EASTERN ARABIC-INDIC DIGIT SIX;;;;
+06F7;EXTENDED ARABIC-INDIC DIGIT SEVEN;Nd;0;EN;;7;7;7;N;EASTERN ARABIC-INDIC DIGIT SEVEN;;;;
+06F8;EXTENDED ARABIC-INDIC DIGIT EIGHT;Nd;0;EN;;8;8;8;N;EASTERN ARABIC-INDIC DIGIT EIGHT;;;;
+06F9;EXTENDED ARABIC-INDIC DIGIT NINE;Nd;0;EN;;9;9;9;N;EASTERN ARABIC-INDIC DIGIT NINE;;;;
+06FA;ARABIC LETTER SHEEN WITH DOT BELOW;Lo;0;AL;;;;;N;;;;;
+06FB;ARABIC LETTER DAD WITH DOT BELOW;Lo;0;AL;;;;;N;;;;;
+06FC;ARABIC LETTER GHAIN WITH DOT BELOW;Lo;0;AL;;;;;N;;;;;
+06FD;ARABIC SIGN SINDHI AMPERSAND;So;0;AL;;;;;N;;;;;
+06FE;ARABIC SIGN SINDHI POSTPOSITION MEN;So;0;AL;;;;;N;;;;;
+06FF;ARABIC LETTER HEH WITH INVERTED V;Lo;0;AL;;;;;N;;;;;
+0700;SYRIAC END OF PARAGRAPH;Po;0;AL;;;;;N;;;;;
+0701;SYRIAC SUPRALINEAR FULL STOP;Po;0;AL;;;;;N;;;;;
+0702;SYRIAC SUBLINEAR FULL STOP;Po;0;AL;;;;;N;;;;;
+0703;SYRIAC SUPRALINEAR COLON;Po;0;AL;;;;;N;;;;;
+0704;SYRIAC SUBLINEAR COLON;Po;0;AL;;;;;N;;;;;
+0705;SYRIAC HORIZONTAL COLON;Po;0;AL;;;;;N;;;;;
+0706;SYRIAC COLON SKEWED LEFT;Po;0;AL;;;;;N;;;;;
+0707;SYRIAC COLON SKEWED RIGHT;Po;0;AL;;;;;N;;;;;
+0708;SYRIAC SUPRALINEAR COLON SKEWED LEFT;Po;0;AL;;;;;N;;;;;
+0709;SYRIAC SUBLINEAR COLON SKEWED RIGHT;Po;0;AL;;;;;N;;;;;
+070A;SYRIAC CONTRACTION;Po;0;AL;;;;;N;;;;;
+070B;SYRIAC HARKLEAN OBELUS;Po;0;AL;;;;;N;;;;;
+070C;SYRIAC HARKLEAN METOBELUS;Po;0;AL;;;;;N;;;;;
+070D;SYRIAC HARKLEAN ASTERISCUS;Po;0;AL;;;;;N;;;;;
+070F;SYRIAC ABBREVIATION MARK;Cf;0;AL;;;;;N;;;;;
+0710;SYRIAC LETTER ALAPH;Lo;0;AL;;;;;N;;;;;
+0711;SYRIAC LETTER SUPERSCRIPT ALAPH;Mn;36;NSM;;;;;N;;;;;
+0712;SYRIAC LETTER BETH;Lo;0;AL;;;;;N;;;;;
+0713;SYRIAC LETTER GAMAL;Lo;0;AL;;;;;N;;;;;
+0714;SYRIAC LETTER GAMAL GARSHUNI;Lo;0;AL;;;;;N;;;;;
+0715;SYRIAC LETTER DALATH;Lo;0;AL;;;;;N;;;;;
+0716;SYRIAC LETTER DOTLESS DALATH RISH;Lo;0;AL;;;;;N;;;;;
+0717;SYRIAC LETTER HE;Lo;0;AL;;;;;N;;;;;
+0718;SYRIAC LETTER WAW;Lo;0;AL;;;;;N;;;;;
+0719;SYRIAC LETTER ZAIN;Lo;0;AL;;;;;N;;;;;
+071A;SYRIAC LETTER HETH;Lo;0;AL;;;;;N;;;;;
+071B;SYRIAC LETTER TETH;Lo;0;AL;;;;;N;;;;;
+071C;SYRIAC LETTER TETH GARSHUNI;Lo;0;AL;;;;;N;;;;;
+071D;SYRIAC LETTER YUDH;Lo;0;AL;;;;;N;;;;;
+071E;SYRIAC LETTER YUDH HE;Lo;0;AL;;;;;N;;;;;
+071F;SYRIAC LETTER KAPH;Lo;0;AL;;;;;N;;;;;
+0720;SYRIAC LETTER LAMADH;Lo;0;AL;;;;;N;;;;;
+0721;SYRIAC LETTER MIM;Lo;0;AL;;;;;N;;;;;
+0722;SYRIAC LETTER NUN;Lo;0;AL;;;;;N;;;;;
+0723;SYRIAC LETTER SEMKATH;Lo;0;AL;;;;;N;;;;;
+0724;SYRIAC LETTER FINAL SEMKATH;Lo;0;AL;;;;;N;;;;;
+0725;SYRIAC LETTER E;Lo;0;AL;;;;;N;;;;;
+0726;SYRIAC LETTER PE;Lo;0;AL;;;;;N;;;;;
+0727;SYRIAC LETTER REVERSED PE;Lo;0;AL;;;;;N;;;;;
+0728;SYRIAC LETTER SADHE;Lo;0;AL;;;;;N;;;;;
+0729;SYRIAC LETTER QAPH;Lo;0;AL;;;;;N;;;;;
+072A;SYRIAC LETTER RISH;Lo;0;AL;;;;;N;;;;;
+072B;SYRIAC LETTER SHIN;Lo;0;AL;;;;;N;;;;;
+072C;SYRIAC LETTER TAW;Lo;0;AL;;;;;N;;;;;
+072D;SYRIAC LETTER PERSIAN BHETH;Lo;0;AL;;;;;N;;;;;
+072E;SYRIAC LETTER PERSIAN GHAMAL;Lo;0;AL;;;;;N;;;;;
+072F;SYRIAC LETTER PERSIAN DHALATH;Lo;0;AL;;;;;N;;;;;
+0730;SYRIAC PTHAHA ABOVE;Mn;230;NSM;;;;;N;;;;;
+0731;SYRIAC PTHAHA BELOW;Mn;220;NSM;;;;;N;;;;;
+0732;SYRIAC PTHAHA DOTTED;Mn;230;NSM;;;;;N;;;;;
+0733;SYRIAC ZQAPHA ABOVE;Mn;230;NSM;;;;;N;;;;;
+0734;SYRIAC ZQAPHA BELOW;Mn;220;NSM;;;;;N;;;;;
+0735;SYRIAC ZQAPHA DOTTED;Mn;230;NSM;;;;;N;;;;;
+0736;SYRIAC RBASA ABOVE;Mn;230;NSM;;;;;N;;;;;
+0737;SYRIAC RBASA BELOW;Mn;220;NSM;;;;;N;;;;;
+0738;SYRIAC DOTTED ZLAMA HORIZONTAL;Mn;220;NSM;;;;;N;;;;;
+0739;SYRIAC DOTTED ZLAMA ANGULAR;Mn;220;NSM;;;;;N;;;;;
+073A;SYRIAC HBASA ABOVE;Mn;230;NSM;;;;;N;;;;;
+073B;SYRIAC HBASA BELOW;Mn;220;NSM;;;;;N;;;;;
+073C;SYRIAC HBASA-ESASA DOTTED;Mn;220;NSM;;;;;N;;;;;
+073D;SYRIAC ESASA ABOVE;Mn;230;NSM;;;;;N;;;;;
+073E;SYRIAC ESASA BELOW;Mn;220;NSM;;;;;N;;;;;
+073F;SYRIAC RWAHA;Mn;230;NSM;;;;;N;;;;;
+0740;SYRIAC FEMININE DOT;Mn;230;NSM;;;;;N;;;;;
+0741;SYRIAC QUSHSHAYA;Mn;230;NSM;;;;;N;;;;;
+0742;SYRIAC RUKKAKHA;Mn;220;NSM;;;;;N;;;;;
+0743;SYRIAC TWO VERTICAL DOTS ABOVE;Mn;230;NSM;;;;;N;;;;;
+0744;SYRIAC TWO VERTICAL DOTS BELOW;Mn;220;NSM;;;;;N;;;;;
+0745;SYRIAC THREE DOTS ABOVE;Mn;230;NSM;;;;;N;;;;;
+0746;SYRIAC THREE DOTS BELOW;Mn;220;NSM;;;;;N;;;;;
+0747;SYRIAC OBLIQUE LINE ABOVE;Mn;230;NSM;;;;;N;;;;;
+0748;SYRIAC OBLIQUE LINE BELOW;Mn;220;NSM;;;;;N;;;;;
+0749;SYRIAC MUSIC;Mn;230;NSM;;;;;N;;;;;
+074A;SYRIAC BARREKH;Mn;230;NSM;;;;;N;;;;;
+074D;SYRIAC LETTER SOGDIAN ZHAIN;Lo;0;AL;;;;;N;;;;;
+074E;SYRIAC LETTER SOGDIAN KHAPH;Lo;0;AL;;;;;N;;;;;
+074F;SYRIAC LETTER SOGDIAN FE;Lo;0;AL;;;;;N;;;;;
+0750;ARABIC LETTER BEH WITH THREE DOTS HORIZONTALLY BELOW;Lo;0;AL;;;;;N;;;;;
+0751;ARABIC LETTER BEH WITH DOT BELOW AND THREE DOTS ABOVE;Lo;0;AL;;;;;N;;;;;
+0752;ARABIC LETTER BEH WITH THREE DOTS POINTING UPWARDS BELOW;Lo;0;AL;;;;;N;;;;;
+0753;ARABIC LETTER BEH WITH THREE DOTS POINTING UPWARDS BELOW AND TWO DOTS ABOVE;Lo;0;AL;;;;;N;;;;;
+0754;ARABIC LETTER BEH WITH TWO DOTS BELOW AND DOT ABOVE;Lo;0;AL;;;;;N;;;;;
+0755;ARABIC LETTER BEH WITH INVERTED SMALL V BELOW;Lo;0;AL;;;;;N;;;;;
+0756;ARABIC LETTER BEH WITH SMALL V;Lo;0;AL;;;;;N;;;;;
+0757;ARABIC LETTER HAH WITH TWO DOTS ABOVE;Lo;0;AL;;;;;N;;;;;
+0758;ARABIC LETTER HAH WITH THREE DOTS POINTING UPWARDS BELOW;Lo;0;AL;;;;;N;;;;;
+0759;ARABIC LETTER DAL WITH TWO DOTS VERTICALLY BELOW AND SMALL TAH;Lo;0;AL;;;;;N;;;;;
+075A;ARABIC LETTER DAL WITH INVERTED SMALL V BELOW;Lo;0;AL;;;;;N;;;;;
+075B;ARABIC LETTER REH WITH STROKE;Lo;0;AL;;;;;N;;;;;
+075C;ARABIC LETTER SEEN WITH FOUR DOTS ABOVE;Lo;0;AL;;;;;N;;;;;
+075D;ARABIC LETTER AIN WITH TWO DOTS ABOVE;Lo;0;AL;;;;;N;;;;;
+075E;ARABIC LETTER AIN WITH THREE DOTS POINTING DOWNWARDS ABOVE;Lo;0;AL;;;;;N;;;;;
+075F;ARABIC LETTER AIN WITH TWO DOTS VERTICALLY ABOVE;Lo;0;AL;;;;;N;;;;;
+0760;ARABIC LETTER FEH WITH TWO DOTS BELOW;Lo;0;AL;;;;;N;;;;;
+0761;ARABIC LETTER FEH WITH THREE DOTS POINTING UPWARDS BELOW;Lo;0;AL;;;;;N;;;;;
+0762;ARABIC LETTER KEHEH WITH DOT ABOVE;Lo;0;AL;;;;;N;;;;;
+0763;ARABIC LETTER KEHEH WITH THREE DOTS ABOVE;Lo;0;AL;;;;;N;;;;;
+0764;ARABIC LETTER KEHEH WITH THREE DOTS POINTING UPWARDS BELOW;Lo;0;AL;;;;;N;;;;;
+0765;ARABIC LETTER MEEM WITH DOT ABOVE;Lo;0;AL;;;;;N;;;;;
+0766;ARABIC LETTER MEEM WITH DOT BELOW;Lo;0;AL;;;;;N;;;;;
+0767;ARABIC LETTER NOON WITH TWO DOTS BELOW;Lo;0;AL;;;;;N;;;;;
+0768;ARABIC LETTER NOON WITH SMALL TAH;Lo;0;AL;;;;;N;;;;;
+0769;ARABIC LETTER NOON WITH SMALL V;Lo;0;AL;;;;;N;;;;;
+076A;ARABIC LETTER LAM WITH BAR;Lo;0;AL;;;;;N;;;;;
+076B;ARABIC LETTER REH WITH TWO DOTS VERTICALLY ABOVE;Lo;0;AL;;;;;N;;;;;
+076C;ARABIC LETTER REH WITH HAMZA ABOVE;Lo;0;AL;;;;;N;;;;;
+076D;ARABIC LETTER SEEN WITH TWO DOTS VERTICALLY ABOVE;Lo;0;AL;;;;;N;;;;;
+076E;ARABIC LETTER HAH WITH SMALL ARABIC LETTER TAH BELOW;Lo;0;AL;;;;;N;;;;;
+076F;ARABIC LETTER HAH WITH SMALL ARABIC LETTER TAH AND TWO DOTS;Lo;0;AL;;;;;N;;;;;
+0770;ARABIC LETTER SEEN WITH SMALL ARABIC LETTER TAH AND TWO DOTS;Lo;0;AL;;;;;N;;;;;
+0771;ARABIC LETTER REH WITH SMALL ARABIC LETTER TAH AND TWO DOTS;Lo;0;AL;;;;;N;;;;;
+0772;ARABIC LETTER HAH WITH SMALL ARABIC LETTER TAH ABOVE;Lo;0;AL;;;;;N;;;;;
+0773;ARABIC LETTER ALEF WITH EXTENDED ARABIC-INDIC DIGIT TWO ABOVE;Lo;0;AL;;;;;N;;;;;
+0774;ARABIC LETTER ALEF WITH EXTENDED ARABIC-INDIC DIGIT THREE ABOVE;Lo;0;AL;;;;;N;;;;;
+0775;ARABIC LETTER FARSI YEH WITH EXTENDED ARABIC-INDIC DIGIT TWO ABOVE;Lo;0;AL;;;;;N;;;;;
+0776;ARABIC LETTER FARSI YEH WITH EXTENDED ARABIC-INDIC DIGIT THREE ABOVE;Lo;0;AL;;;;;N;;;;;
+0777;ARABIC LETTER FARSI YEH WITH EXTENDED ARABIC-INDIC DIGIT FOUR BELOW;Lo;0;AL;;;;;N;;;;;
+0778;ARABIC LETTER WAW WITH EXTENDED ARABIC-INDIC DIGIT TWO ABOVE;Lo;0;AL;;;;;N;;;;;
+0779;ARABIC LETTER WAW WITH EXTENDED ARABIC-INDIC DIGIT THREE ABOVE;Lo;0;AL;;;;;N;;;;;
+077A;ARABIC LETTER YEH BARREE WITH EXTENDED ARABIC-INDIC DIGIT TWO ABOVE;Lo;0;AL;;;;;N;;;;;
+077B;ARABIC LETTER YEH BARREE WITH EXTENDED ARABIC-INDIC DIGIT THREE ABOVE;Lo;0;AL;;;;;N;;;;;
+077C;ARABIC LETTER HAH WITH EXTENDED ARABIC-INDIC DIGIT FOUR BELOW;Lo;0;AL;;;;;N;;;;;
+077D;ARABIC LETTER SEEN WITH EXTENDED ARABIC-INDIC DIGIT FOUR ABOVE;Lo;0;AL;;;;;N;;;;;
+077E;ARABIC LETTER SEEN WITH INVERTED V;Lo;0;AL;;;;;N;;;;;
+077F;ARABIC LETTER KAF WITH TWO DOTS ABOVE;Lo;0;AL;;;;;N;;;;;
+0780;THAANA LETTER HAA;Lo;0;AL;;;;;N;;;;;
+0781;THAANA LETTER SHAVIYANI;Lo;0;AL;;;;;N;;;;;
+0782;THAANA LETTER NOONU;Lo;0;AL;;;;;N;;;;;
+0783;THAANA LETTER RAA;Lo;0;AL;;;;;N;;;;;
+0784;THAANA LETTER BAA;Lo;0;AL;;;;;N;;;;;
+0785;THAANA LETTER LHAVIYANI;Lo;0;AL;;;;;N;;;;;
+0786;THAANA LETTER KAAFU;Lo;0;AL;;;;;N;;;;;
+0787;THAANA LETTER ALIFU;Lo;0;AL;;;;;N;;;;;
+0788;THAANA LETTER VAAVU;Lo;0;AL;;;;;N;;;;;
+0789;THAANA LETTER MEEMU;Lo;0;AL;;;;;N;;;;;
+078A;THAANA LETTER FAAFU;Lo;0;AL;;;;;N;;;;;
+078B;THAANA LETTER DHAALU;Lo;0;AL;;;;;N;;;;;
+078C;THAANA LETTER THAA;Lo;0;AL;;;;;N;;;;;
+078D;THAANA LETTER LAAMU;Lo;0;AL;;;;;N;;;;;
+078E;THAANA LETTER GAAFU;Lo;0;AL;;;;;N;;;;;
+078F;THAANA LETTER GNAVIYANI;Lo;0;AL;;;;;N;;;;;
+0790;THAANA LETTER SEENU;Lo;0;AL;;;;;N;;;;;
+0791;THAANA LETTER DAVIYANI;Lo;0;AL;;;;;N;;;;;
+0792;THAANA LETTER ZAVIYANI;Lo;0;AL;;;;;N;;;;;
+0793;THAANA LETTER TAVIYANI;Lo;0;AL;;;;;N;;;;;
+0794;THAANA LETTER YAA;Lo;0;AL;;;;;N;;;;;
+0795;THAANA LETTER PAVIYANI;Lo;0;AL;;;;;N;;;;;
+0796;THAANA LETTER JAVIYANI;Lo;0;AL;;;;;N;;;;;
+0797;THAANA LETTER CHAVIYANI;Lo;0;AL;;;;;N;;;;;
+0798;THAANA LETTER TTAA;Lo;0;AL;;;;;N;;;;;
+0799;THAANA LETTER HHAA;Lo;0;AL;;;;;N;;;;;
+079A;THAANA LETTER KHAA;Lo;0;AL;;;;;N;;;;;
+079B;THAANA LETTER THAALU;Lo;0;AL;;;;;N;;;;;
+079C;THAANA LETTER ZAA;Lo;0;AL;;;;;N;;;;;
+079D;THAANA LETTER SHEENU;Lo;0;AL;;;;;N;;;;;
+079E;THAANA LETTER SAADHU;Lo;0;AL;;;;;N;;;;;
+079F;THAANA LETTER DAADHU;Lo;0;AL;;;;;N;;;;;
+07A0;THAANA LETTER TO;Lo;0;AL;;;;;N;;;;;
+07A1;THAANA LETTER ZO;Lo;0;AL;;;;;N;;;;;
+07A2;THAANA LETTER AINU;Lo;0;AL;;;;;N;;;;;
+07A3;THAANA LETTER GHAINU;Lo;0;AL;;;;;N;;;;;
+07A4;THAANA LETTER QAAFU;Lo;0;AL;;;;;N;;;;;
+07A5;THAANA LETTER WAAVU;Lo;0;AL;;;;;N;;;;;
+07A6;THAANA ABAFILI;Mn;0;NSM;;;;;N;;;;;
+07A7;THAANA AABAAFILI;Mn;0;NSM;;;;;N;;;;;
+07A8;THAANA IBIFILI;Mn;0;NSM;;;;;N;;;;;
+07A9;THAANA EEBEEFILI;Mn;0;NSM;;;;;N;;;;;
+07AA;THAANA UBUFILI;Mn;0;NSM;;;;;N;;;;;
+07AB;THAANA OOBOOFILI;Mn;0;NSM;;;;;N;;;;;
+07AC;THAANA EBEFILI;Mn;0;NSM;;;;;N;;;;;
+07AD;THAANA EYBEYFILI;Mn;0;NSM;;;;;N;;;;;
+07AE;THAANA OBOFILI;Mn;0;NSM;;;;;N;;;;;
+07AF;THAANA OABOAFILI;Mn;0;NSM;;;;;N;;;;;
+07B0;THAANA SUKUN;Mn;0;NSM;;;;;N;;;;;
+07B1;THAANA LETTER NAA;Lo;0;AL;;;;;N;;;;;
+07C0;NKO DIGIT ZERO;Nd;0;R;;0;0;0;N;;;;;
+07C1;NKO DIGIT ONE;Nd;0;R;;1;1;1;N;;;;;
+07C2;NKO DIGIT TWO;Nd;0;R;;2;2;2;N;;;;;
+07C3;NKO DIGIT THREE;Nd;0;R;;3;3;3;N;;;;;
+07C4;NKO DIGIT FOUR;Nd;0;R;;4;4;4;N;;;;;
+07C5;NKO DIGIT FIVE;Nd;0;R;;5;5;5;N;;;;;
+07C6;NKO DIGIT SIX;Nd;0;R;;6;6;6;N;;;;;
+07C7;NKO DIGIT SEVEN;Nd;0;R;;7;7;7;N;;;;;
+07C8;NKO DIGIT EIGHT;Nd;0;R;;8;8;8;N;;;;;
+07C9;NKO DIGIT NINE;Nd;0;R;;9;9;9;N;;;;;
+07CA;NKO LETTER A;Lo;0;R;;;;;N;;;;;
+07CB;NKO LETTER EE;Lo;0;R;;;;;N;;;;;
+07CC;NKO LETTER I;Lo;0;R;;;;;N;;;;;
+07CD;NKO LETTER E;Lo;0;R;;;;;N;;;;;
+07CE;NKO LETTER U;Lo;0;R;;;;;N;;;;;
+07CF;NKO LETTER OO;Lo;0;R;;;;;N;;;;;
+07D0;NKO LETTER O;Lo;0;R;;;;;N;;;;;
+07D1;NKO LETTER DAGBASINNA;Lo;0;R;;;;;N;;;;;
+07D2;NKO LETTER N;Lo;0;R;;;;;N;;;;;
+07D3;NKO LETTER BA;Lo;0;R;;;;;N;;;;;
+07D4;NKO LETTER PA;Lo;0;R;;;;;N;;;;;
+07D5;NKO LETTER TA;Lo;0;R;;;;;N;;;;;
+07D6;NKO LETTER JA;Lo;0;R;;;;;N;;;;;
+07D7;NKO LETTER CHA;Lo;0;R;;;;;N;;;;;
+07D8;NKO LETTER DA;Lo;0;R;;;;;N;;;;;
+07D9;NKO LETTER RA;Lo;0;R;;;;;N;;;;;
+07DA;NKO LETTER RRA;Lo;0;R;;;;;N;;;;;
+07DB;NKO LETTER SA;Lo;0;R;;;;;N;;;;;
+07DC;NKO LETTER GBA;Lo;0;R;;;;;N;;;;;
+07DD;NKO LETTER FA;Lo;0;R;;;;;N;;;;;
+07DE;NKO LETTER KA;Lo;0;R;;;;;N;;;;;
+07DF;NKO LETTER LA;Lo;0;R;;;;;N;;;;;
+07E0;NKO LETTER NA WOLOSO;Lo;0;R;;;;;N;;;;;
+07E1;NKO LETTER MA;Lo;0;R;;;;;N;;;;;
+07E2;NKO LETTER NYA;Lo;0;R;;;;;N;;;;;
+07E3;NKO LETTER NA;Lo;0;R;;;;;N;;;;;
+07E4;NKO LETTER HA;Lo;0;R;;;;;N;;;;;
+07E5;NKO LETTER WA;Lo;0;R;;;;;N;;;;;
+07E6;NKO LETTER YA;Lo;0;R;;;;;N;;;;;
+07E7;NKO LETTER NYA WOLOSO;Lo;0;R;;;;;N;;;;;
+07E8;NKO LETTER JONA JA;Lo;0;R;;;;;N;;;;;
+07E9;NKO LETTER JONA CHA;Lo;0;R;;;;;N;;;;;
+07EA;NKO LETTER JONA RA;Lo;0;R;;;;;N;;;;;
+07EB;NKO COMBINING SHORT HIGH TONE;Mn;230;NSM;;;;;N;;;;;
+07EC;NKO COMBINING SHORT LOW TONE;Mn;230;NSM;;;;;N;;;;;
+07ED;NKO COMBINING SHORT RISING TONE;Mn;230;NSM;;;;;N;;;;;
+07EE;NKO COMBINING LONG DESCENDING TONE;Mn;230;NSM;;;;;N;;;;;
+07EF;NKO COMBINING LONG HIGH TONE;Mn;230;NSM;;;;;N;;;;;
+07F0;NKO COMBINING LONG LOW TONE;Mn;230;NSM;;;;;N;;;;;
+07F1;NKO COMBINING LONG RISING TONE;Mn;230;NSM;;;;;N;;;;;
+07F2;NKO COMBINING NASALIZATION MARK;Mn;220;NSM;;;;;N;;;;;
+07F3;NKO COMBINING DOUBLE DOT ABOVE;Mn;230;NSM;;;;;N;;;;;
+07F4;NKO HIGH TONE APOSTROPHE;Lm;0;R;;;;;N;;;;;
+07F5;NKO LOW TONE APOSTROPHE;Lm;0;R;;;;;N;;;;;
+07F6;NKO SYMBOL OO DENNEN;So;0;ON;;;;;N;;;;;
+07F7;NKO SYMBOL GBAKURUNEN;Po;0;ON;;;;;N;;;;;
+07F8;NKO COMMA;Po;0;ON;;;;;N;;;;;
+07F9;NKO EXCLAMATION MARK;Po;0;ON;;;;;N;;;;;
+07FA;NKO LAJANYALAN;Lm;0;R;;;;;N;;;;;
+0800;SAMARITAN LETTER ALAF;Lo;0;R;;;;;N;;;;;
+0801;SAMARITAN LETTER BIT;Lo;0;R;;;;;N;;;;;
+0802;SAMARITAN LETTER GAMAN;Lo;0;R;;;;;N;;;;;
+0803;SAMARITAN LETTER DALAT;Lo;0;R;;;;;N;;;;;
+0804;SAMARITAN LETTER IY;Lo;0;R;;;;;N;;;;;
+0805;SAMARITAN LETTER BAA;Lo;0;R;;;;;N;;;;;
+0806;SAMARITAN LETTER ZEN;Lo;0;R;;;;;N;;;;;
+0807;SAMARITAN LETTER IT;Lo;0;R;;;;;N;;;;;
+0808;SAMARITAN LETTER TIT;Lo;0;R;;;;;N;;;;;
+0809;SAMARITAN LETTER YUT;Lo;0;R;;;;;N;;;;;
+080A;SAMARITAN LETTER KAAF;Lo;0;R;;;;;N;;;;;
+080B;SAMARITAN LETTER LABAT;Lo;0;R;;;;;N;;;;;
+080C;SAMARITAN LETTER MIM;Lo;0;R;;;;;N;;;;;
+080D;SAMARITAN LETTER NUN;Lo;0;R;;;;;N;;;;;
+080E;SAMARITAN LETTER SINGAAT;Lo;0;R;;;;;N;;;;;
+080F;SAMARITAN LETTER IN;Lo;0;R;;;;;N;;;;;
+0810;SAMARITAN LETTER FI;Lo;0;R;;;;;N;;;;;
+0811;SAMARITAN LETTER TSAADIY;Lo;0;R;;;;;N;;;;;
+0812;SAMARITAN LETTER QUF;Lo;0;R;;;;;N;;;;;
+0813;SAMARITAN LETTER RISH;Lo;0;R;;;;;N;;;;;
+0814;SAMARITAN LETTER SHAN;Lo;0;R;;;;;N;;;;;
+0815;SAMARITAN LETTER TAAF;Lo;0;R;;;;;N;;;;;
+0816;SAMARITAN MARK IN;Mn;230;NSM;;;;;N;;;;;
+0817;SAMARITAN MARK IN-ALAF;Mn;230;NSM;;;;;N;;;;;
+0818;SAMARITAN MARK OCCLUSION;Mn;230;NSM;;;;;N;;;;;
+0819;SAMARITAN MARK DAGESH;Mn;230;NSM;;;;;N;;;;;
+081A;SAMARITAN MODIFIER LETTER EPENTHETIC YUT;Lm;0;R;;;;;N;;;;;
+081B;SAMARITAN MARK EPENTHETIC YUT;Mn;230;NSM;;;;;N;;;;;
+081C;SAMARITAN VOWEL SIGN LONG E;Mn;230;NSM;;;;;N;;;;;
+081D;SAMARITAN VOWEL SIGN E;Mn;230;NSM;;;;;N;;;;;
+081E;SAMARITAN VOWEL SIGN OVERLONG AA;Mn;230;NSM;;;;;N;;;;;
+081F;SAMARITAN VOWEL SIGN LONG AA;Mn;230;NSM;;;;;N;;;;;
+0820;SAMARITAN VOWEL SIGN AA;Mn;230;NSM;;;;;N;;;;;
+0821;SAMARITAN VOWEL SIGN OVERLONG A;Mn;230;NSM;;;;;N;;;;;
+0822;SAMARITAN VOWEL SIGN LONG A;Mn;230;NSM;;;;;N;;;;;
+0823;SAMARITAN VOWEL SIGN A;Mn;230;NSM;;;;;N;;;;;
+0824;SAMARITAN MODIFIER LETTER SHORT A;Lm;0;R;;;;;N;;;;;
+0825;SAMARITAN VOWEL SIGN SHORT A;Mn;230;NSM;;;;;N;;;;;
+0826;SAMARITAN VOWEL SIGN LONG U;Mn;230;NSM;;;;;N;;;;;
+0827;SAMARITAN VOWEL SIGN U;Mn;230;NSM;;;;;N;;;;;
+0828;SAMARITAN MODIFIER LETTER I;Lm;0;R;;;;;N;;;;;
+0829;SAMARITAN VOWEL SIGN LONG I;Mn;230;NSM;;;;;N;;;;;
+082A;SAMARITAN VOWEL SIGN I;Mn;230;NSM;;;;;N;;;;;
+082B;SAMARITAN VOWEL SIGN O;Mn;230;NSM;;;;;N;;;;;
+082C;SAMARITAN VOWEL SIGN SUKUN;Mn;230;NSM;;;;;N;;;;;
+082D;SAMARITAN MARK NEQUDAA;Mn;230;NSM;;;;;N;;;;;
+0830;SAMARITAN PUNCTUATION NEQUDAA;Po;0;R;;;;;N;;;;;
+0831;SAMARITAN PUNCTUATION AFSAAQ;Po;0;R;;;;;N;;;;;
+0832;SAMARITAN PUNCTUATION ANGED;Po;0;R;;;;;N;;;;;
+0833;SAMARITAN PUNCTUATION BAU;Po;0;R;;;;;N;;;;;
+0834;SAMARITAN PUNCTUATION ATMAAU;Po;0;R;;;;;N;;;;;
+0835;SAMARITAN PUNCTUATION SHIYYAALAA;Po;0;R;;;;;N;;;;;
+0836;SAMARITAN ABBREVIATION MARK;Po;0;R;;;;;N;;;;;
+0837;SAMARITAN PUNCTUATION MELODIC QITSA;Po;0;R;;;;;N;;;;;
+0838;SAMARITAN PUNCTUATION ZIQAA;Po;0;R;;;;;N;;;;;
+0839;SAMARITAN PUNCTUATION QITSA;Po;0;R;;;;;N;;;;;
+083A;SAMARITAN PUNCTUATION ZAEF;Po;0;R;;;;;N;;;;;
+083B;SAMARITAN PUNCTUATION TURU;Po;0;R;;;;;N;;;;;
+083C;SAMARITAN PUNCTUATION ARKAANU;Po;0;R;;;;;N;;;;;
+083D;SAMARITAN PUNCTUATION SOF MASHFAAT;Po;0;R;;;;;N;;;;;
+083E;SAMARITAN PUNCTUATION ANNAAU;Po;0;R;;;;;N;;;;;
+0840;MANDAIC LETTER HALQA;Lo;0;R;;;;;N;;;;;
+0841;MANDAIC LETTER AB;Lo;0;R;;;;;N;;;;;
+0842;MANDAIC LETTER AG;Lo;0;R;;;;;N;;;;;
+0843;MANDAIC LETTER AD;Lo;0;R;;;;;N;;;;;
+0844;MANDAIC LETTER AH;Lo;0;R;;;;;N;;;;;
+0845;MANDAIC LETTER USHENNA;Lo;0;R;;;;;N;;;;;
+0846;MANDAIC LETTER AZ;Lo;0;R;;;;;N;;;;;
+0847;MANDAIC LETTER IT;Lo;0;R;;;;;N;;;;;
+0848;MANDAIC LETTER ATT;Lo;0;R;;;;;N;;;;;
+0849;MANDAIC LETTER AKSA;Lo;0;R;;;;;N;;;;;
+084A;MANDAIC LETTER AK;Lo;0;R;;;;;N;;;;;
+084B;MANDAIC LETTER AL;Lo;0;R;;;;;N;;;;;
+084C;MANDAIC LETTER AM;Lo;0;R;;;;;N;;;;;
+084D;MANDAIC LETTER AN;Lo;0;R;;;;;N;;;;;
+084E;MANDAIC LETTER AS;Lo;0;R;;;;;N;;;;;
+084F;MANDAIC LETTER IN;Lo;0;R;;;;;N;;;;;
+0850;MANDAIC LETTER AP;Lo;0;R;;;;;N;;;;;
+0851;MANDAIC LETTER ASZ;Lo;0;R;;;;;N;;;;;
+0852;MANDAIC LETTER AQ;Lo;0;R;;;;;N;;;;;
+0853;MANDAIC LETTER AR;Lo;0;R;;;;;N;;;;;
+0854;MANDAIC LETTER ASH;Lo;0;R;;;;;N;;;;;
+0855;MANDAIC LETTER AT;Lo;0;R;;;;;N;;;;;
+0856;MANDAIC LETTER DUSHENNA;Lo;0;R;;;;;N;;;;;
+0857;MANDAIC LETTER KAD;Lo;0;R;;;;;N;;;;;
+0858;MANDAIC LETTER AIN;Lo;0;R;;;;;N;;;;;
+0859;MANDAIC AFFRICATION MARK;Mn;220;NSM;;;;;N;;;;;
+085A;MANDAIC VOCALIZATION MARK;Mn;220;NSM;;;;;N;;;;;
+085B;MANDAIC GEMINATION MARK;Mn;220;NSM;;;;;N;;;;;
+085E;MANDAIC PUNCTUATION;Po;0;R;;;;;N;;;;;
+08A0;ARABIC LETTER BEH WITH SMALL V BELOW;Lo;0;AL;;;;;N;;;;;
+08A2;ARABIC LETTER JEEM WITH TWO DOTS ABOVE;Lo;0;AL;;;;;N;;;;;
+08A3;ARABIC LETTER TAH WITH TWO DOTS ABOVE;Lo;0;AL;;;;;N;;;;;
+08A4;ARABIC LETTER FEH WITH DOT BELOW AND THREE DOTS ABOVE;Lo;0;AL;;;;;N;;;;;
+08A5;ARABIC LETTER QAF WITH DOT BELOW;Lo;0;AL;;;;;N;;;;;
+08A6;ARABIC LETTER LAM WITH DOUBLE BAR;Lo;0;AL;;;;;N;;;;;
+08A7;ARABIC LETTER MEEM WITH THREE DOTS ABOVE;Lo;0;AL;;;;;N;;;;;
+08A8;ARABIC LETTER YEH WITH TWO DOTS BELOW AND HAMZA ABOVE;Lo;0;AL;;;;;N;;;;;
+08A9;ARABIC LETTER YEH WITH TWO DOTS BELOW AND DOT ABOVE;Lo;0;AL;;;;;N;;;;;
+08AA;ARABIC LETTER REH WITH LOOP;Lo;0;AL;;;;;N;;;;;
+08AB;ARABIC LETTER WAW WITH DOT WITHIN;Lo;0;AL;;;;;N;;;;;
+08AC;ARABIC LETTER ROHINGYA YEH;Lo;0;AL;;;;;N;;;;;
+08E4;ARABIC CURLY FATHA;Mn;230;NSM;;;;;N;;;;;
+08E5;ARABIC CURLY DAMMA;Mn;230;NSM;;;;;N;;;;;
+08E6;ARABIC CURLY KASRA;Mn;220;NSM;;;;;N;;;;;
+08E7;ARABIC CURLY FATHATAN;Mn;230;NSM;;;;;N;;;;;
+08E8;ARABIC CURLY DAMMATAN;Mn;230;NSM;;;;;N;;;;;
+08E9;ARABIC CURLY KASRATAN;Mn;220;NSM;;;;;N;;;;;
+08EA;ARABIC TONE ONE DOT ABOVE;Mn;230;NSM;;;;;N;;;;;
+08EB;ARABIC TONE TWO DOTS ABOVE;Mn;230;NSM;;;;;N;;;;;
+08EC;ARABIC TONE LOOP ABOVE;Mn;230;NSM;;;;;N;;;;;
+08ED;ARABIC TONE ONE DOT BELOW;Mn;220;NSM;;;;;N;;;;;
+08EE;ARABIC TONE TWO DOTS BELOW;Mn;220;NSM;;;;;N;;;;;
+08EF;ARABIC TONE LOOP BELOW;Mn;220;NSM;;;;;N;;;;;
+08F0;ARABIC OPEN FATHATAN;Mn;27;NSM;;;;;N;;;;;
+08F1;ARABIC OPEN DAMMATAN;Mn;28;NSM;;;;;N;;;;;
+08F2;ARABIC OPEN KASRATAN;Mn;29;NSM;;;;;N;;;;;
+08F3;ARABIC SMALL HIGH WAW;Mn;230;NSM;;;;;N;;;;;
+08F4;ARABIC FATHA WITH RING;Mn;230;NSM;;;;;N;;;;;
+08F5;ARABIC FATHA WITH DOT ABOVE;Mn;230;NSM;;;;;N;;;;;
+08F6;ARABIC KASRA WITH DOT BELOW;Mn;220;NSM;;;;;N;;;;;
+08F7;ARABIC LEFT ARROWHEAD ABOVE;Mn;230;NSM;;;;;N;;;;;
+08F8;ARABIC RIGHT ARROWHEAD ABOVE;Mn;230;NSM;;;;;N;;;;;
+08F9;ARABIC LEFT ARROWHEAD BELOW;Mn;220;NSM;;;;;N;;;;;
+08FA;ARABIC RIGHT ARROWHEAD BELOW;Mn;220;NSM;;;;;N;;;;;
+08FB;ARABIC DOUBLE RIGHT ARROWHEAD ABOVE;Mn;230;NSM;;;;;N;;;;;
+08FC;ARABIC DOUBLE RIGHT ARROWHEAD ABOVE WITH DOT;Mn;230;NSM;;;;;N;;;;;
+08FD;ARABIC RIGHT ARROWHEAD ABOVE WITH DOT;Mn;230;NSM;;;;;N;;;;;
+08FE;ARABIC DAMMA WITH DOT;Mn;230;NSM;;;;;N;;;;;
+0900;DEVANAGARI SIGN INVERTED CANDRABINDU;Mn;0;NSM;;;;;N;;;;;
+0901;DEVANAGARI SIGN CANDRABINDU;Mn;0;NSM;;;;;N;;;;;
+0902;DEVANAGARI SIGN ANUSVARA;Mn;0;NSM;;;;;N;;;;;
+0903;DEVANAGARI SIGN VISARGA;Mc;0;L;;;;;N;;;;;
+0904;DEVANAGARI LETTER SHORT A;Lo;0;L;;;;;N;;;;;
+0905;DEVANAGARI LETTER A;Lo;0;L;;;;;N;;;;;
+0906;DEVANAGARI LETTER AA;Lo;0;L;;;;;N;;;;;
+0907;DEVANAGARI LETTER I;Lo;0;L;;;;;N;;;;;
+0908;DEVANAGARI LETTER II;Lo;0;L;;;;;N;;;;;
+0909;DEVANAGARI LETTER U;Lo;0;L;;;;;N;;;;;
+090A;DEVANAGARI LETTER UU;Lo;0;L;;;;;N;;;;;
+090B;DEVANAGARI LETTER VOCALIC R;Lo;0;L;;;;;N;;;;;
+090C;DEVANAGARI LETTER VOCALIC L;Lo;0;L;;;;;N;;;;;
+090D;DEVANAGARI LETTER CANDRA E;Lo;0;L;;;;;N;;;;;
+090E;DEVANAGARI LETTER SHORT E;Lo;0;L;;;;;N;;;;;
+090F;DEVANAGARI LETTER E;Lo;0;L;;;;;N;;;;;
+0910;DEVANAGARI LETTER AI;Lo;0;L;;;;;N;;;;;
+0911;DEVANAGARI LETTER CANDRA O;Lo;0;L;;;;;N;;;;;
+0912;DEVANAGARI LETTER SHORT O;Lo;0;L;;;;;N;;;;;
+0913;DEVANAGARI LETTER O;Lo;0;L;;;;;N;;;;;
+0914;DEVANAGARI LETTER AU;Lo;0;L;;;;;N;;;;;
+0915;DEVANAGARI LETTER KA;Lo;0;L;;;;;N;;;;;
+0916;DEVANAGARI LETTER KHA;Lo;0;L;;;;;N;;;;;
+0917;DEVANAGARI LETTER GA;Lo;0;L;;;;;N;;;;;
+0918;DEVANAGARI LETTER GHA;Lo;0;L;;;;;N;;;;;
+0919;DEVANAGARI LETTER NGA;Lo;0;L;;;;;N;;;;;
+091A;DEVANAGARI LETTER CA;Lo;0;L;;;;;N;;;;;
+091B;DEVANAGARI LETTER CHA;Lo;0;L;;;;;N;;;;;
+091C;DEVANAGARI LETTER JA;Lo;0;L;;;;;N;;;;;
+091D;DEVANAGARI LETTER JHA;Lo;0;L;;;;;N;;;;;
+091E;DEVANAGARI LETTER NYA;Lo;0;L;;;;;N;;;;;
+091F;DEVANAGARI LETTER TTA;Lo;0;L;;;;;N;;;;;
+0920;DEVANAGARI LETTER TTHA;Lo;0;L;;;;;N;;;;;
+0921;DEVANAGARI LETTER DDA;Lo;0;L;;;;;N;;;;;
+0922;DEVANAGARI LETTER DDHA;Lo;0;L;;;;;N;;;;;
+0923;DEVANAGARI LETTER NNA;Lo;0;L;;;;;N;;;;;
+0924;DEVANAGARI LETTER TA;Lo;0;L;;;;;N;;;;;
+0925;DEVANAGARI LETTER THA;Lo;0;L;;;;;N;;;;;
+0926;DEVANAGARI LETTER DA;Lo;0;L;;;;;N;;;;;
+0927;DEVANAGARI LETTER DHA;Lo;0;L;;;;;N;;;;;
+0928;DEVANAGARI LETTER NA;Lo;0;L;;;;;N;;;;;
+0929;DEVANAGARI LETTER NNNA;Lo;0;L;0928 093C;;;;N;;;;;
+092A;DEVANAGARI LETTER PA;Lo;0;L;;;;;N;;;;;
+092B;DEVANAGARI LETTER PHA;Lo;0;L;;;;;N;;;;;
+092C;DEVANAGARI LETTER BA;Lo;0;L;;;;;N;;;;;
+092D;DEVANAGARI LETTER BHA;Lo;0;L;;;;;N;;;;;
+092E;DEVANAGARI LETTER MA;Lo;0;L;;;;;N;;;;;
+092F;DEVANAGARI LETTER YA;Lo;0;L;;;;;N;;;;;
+0930;DEVANAGARI LETTER RA;Lo;0;L;;;;;N;;;;;
+0931;DEVANAGARI LETTER RRA;Lo;0;L;0930 093C;;;;N;;;;;
+0932;DEVANAGARI LETTER LA;Lo;0;L;;;;;N;;;;;
+0933;DEVANAGARI LETTER LLA;Lo;0;L;;;;;N;;;;;
+0934;DEVANAGARI LETTER LLLA;Lo;0;L;0933 093C;;;;N;;;;;
+0935;DEVANAGARI LETTER VA;Lo;0;L;;;;;N;;;;;
+0936;DEVANAGARI LETTER SHA;Lo;0;L;;;;;N;;;;;
+0937;DEVANAGARI LETTER SSA;Lo;0;L;;;;;N;;;;;
+0938;DEVANAGARI LETTER SA;Lo;0;L;;;;;N;;;;;
+0939;DEVANAGARI LETTER HA;Lo;0;L;;;;;N;;;;;
+093A;DEVANAGARI VOWEL SIGN OE;Mn;0;NSM;;;;;N;;;;;
+093B;DEVANAGARI VOWEL SIGN OOE;Mc;0;L;;;;;N;;;;;
+093C;DEVANAGARI SIGN NUKTA;Mn;7;NSM;;;;;N;;;;;
+093D;DEVANAGARI SIGN AVAGRAHA;Lo;0;L;;;;;N;;;;;
+093E;DEVANAGARI VOWEL SIGN AA;Mc;0;L;;;;;N;;;;;
+093F;DEVANAGARI VOWEL SIGN I;Mc;0;L;;;;;N;;;;;
+0940;DEVANAGARI VOWEL SIGN II;Mc;0;L;;;;;N;;;;;
+0941;DEVANAGARI VOWEL SIGN U;Mn;0;NSM;;;;;N;;;;;
+0942;DEVANAGARI VOWEL SIGN UU;Mn;0;NSM;;;;;N;;;;;
+0943;DEVANAGARI VOWEL SIGN VOCALIC R;Mn;0;NSM;;;;;N;;;;;
+0944;DEVANAGARI VOWEL SIGN VOCALIC RR;Mn;0;NSM;;;;;N;;;;;
+0945;DEVANAGARI VOWEL SIGN CANDRA E;Mn;0;NSM;;;;;N;;;;;
+0946;DEVANAGARI VOWEL SIGN SHORT E;Mn;0;NSM;;;;;N;;;;;
+0947;DEVANAGARI VOWEL SIGN E;Mn;0;NSM;;;;;N;;;;;
+0948;DEVANAGARI VOWEL SIGN AI;Mn;0;NSM;;;;;N;;;;;
+0949;DEVANAGARI VOWEL SIGN CANDRA O;Mc;0;L;;;;;N;;;;;
+094A;DEVANAGARI VOWEL SIGN SHORT O;Mc;0;L;;;;;N;;;;;
+094B;DEVANAGARI VOWEL SIGN O;Mc;0;L;;;;;N;;;;;
+094C;DEVANAGARI VOWEL SIGN AU;Mc;0;L;;;;;N;;;;;
+094D;DEVANAGARI SIGN VIRAMA;Mn;9;NSM;;;;;N;;;;;
+094E;DEVANAGARI VOWEL SIGN PRISHTHAMATRA E;Mc;0;L;;;;;N;;;;;
+094F;DEVANAGARI VOWEL SIGN AW;Mc;0;L;;;;;N;;;;;
+0950;DEVANAGARI OM;Lo;0;L;;;;;N;;;;;
+0951;DEVANAGARI STRESS SIGN UDATTA;Mn;230;NSM;;;;;N;;;;;
+0952;DEVANAGARI STRESS SIGN ANUDATTA;Mn;220;NSM;;;;;N;;;;;
+0953;DEVANAGARI GRAVE ACCENT;Mn;230;NSM;;;;;N;;;;;
+0954;DEVANAGARI ACUTE ACCENT;Mn;230;NSM;;;;;N;;;;;
+0955;DEVANAGARI VOWEL SIGN CANDRA LONG E;Mn;0;NSM;;;;;N;;;;;
+0956;DEVANAGARI VOWEL SIGN UE;Mn;0;NSM;;;;;N;;;;;
+0957;DEVANAGARI VOWEL SIGN UUE;Mn;0;NSM;;;;;N;;;;;
+0958;DEVANAGARI LETTER QA;Lo;0;L;0915 093C;;;;N;;;;;
+0959;DEVANAGARI LETTER KHHA;Lo;0;L;0916 093C;;;;N;;;;;
+095A;DEVANAGARI LETTER GHHA;Lo;0;L;0917 093C;;;;N;;;;;
+095B;DEVANAGARI LETTER ZA;Lo;0;L;091C 093C;;;;N;;;;;
+095C;DEVANAGARI LETTER DDDHA;Lo;0;L;0921 093C;;;;N;;;;;
+095D;DEVANAGARI LETTER RHA;Lo;0;L;0922 093C;;;;N;;;;;
+095E;DEVANAGARI LETTER FA;Lo;0;L;092B 093C;;;;N;;;;;
+095F;DEVANAGARI LETTER YYA;Lo;0;L;092F 093C;;;;N;;;;;
+0960;DEVANAGARI LETTER VOCALIC RR;Lo;0;L;;;;;N;;;;;
+0961;DEVANAGARI LETTER VOCALIC LL;Lo;0;L;;;;;N;;;;;
+0962;DEVANAGARI VOWEL SIGN VOCALIC L;Mn;0;NSM;;;;;N;;;;;
+0963;DEVANAGARI VOWEL SIGN VOCALIC LL;Mn;0;NSM;;;;;N;;;;;
+0964;DEVANAGARI DANDA;Po;0;L;;;;;N;;;;;
+0965;DEVANAGARI DOUBLE DANDA;Po;0;L;;;;;N;;;;;
+0966;DEVANAGARI DIGIT ZERO;Nd;0;L;;0;0;0;N;;;;;
+0967;DEVANAGARI DIGIT ONE;Nd;0;L;;1;1;1;N;;;;;
+0968;DEVANAGARI DIGIT TWO;Nd;0;L;;2;2;2;N;;;;;
+0969;DEVANAGARI DIGIT THREE;Nd;0;L;;3;3;3;N;;;;;
+096A;DEVANAGARI DIGIT FOUR;Nd;0;L;;4;4;4;N;;;;;
+096B;DEVANAGARI DIGIT FIVE;Nd;0;L;;5;5;5;N;;;;;
+096C;DEVANAGARI DIGIT SIX;Nd;0;L;;6;6;6;N;;;;;
+096D;DEVANAGARI DIGIT SEVEN;Nd;0;L;;7;7;7;N;;;;;
+096E;DEVANAGARI DIGIT EIGHT;Nd;0;L;;8;8;8;N;;;;;
+096F;DEVANAGARI DIGIT NINE;Nd;0;L;;9;9;9;N;;;;;
+0970;DEVANAGARI ABBREVIATION SIGN;Po;0;L;;;;;N;;;;;
+0971;DEVANAGARI SIGN HIGH SPACING DOT;Lm;0;L;;;;;N;;;;;
+0972;DEVANAGARI LETTER CANDRA A;Lo;0;L;;;;;N;;;;;
+0973;DEVANAGARI LETTER OE;Lo;0;L;;;;;N;;;;;
+0974;DEVANAGARI LETTER OOE;Lo;0;L;;;;;N;;;;;
+0975;DEVANAGARI LETTER AW;Lo;0;L;;;;;N;;;;;
+0976;DEVANAGARI LETTER UE;Lo;0;L;;;;;N;;;;;
+0977;DEVANAGARI LETTER UUE;Lo;0;L;;;;;N;;;;;
+0979;DEVANAGARI LETTER ZHA;Lo;0;L;;;;;N;;;;;
+097A;DEVANAGARI LETTER HEAVY YA;Lo;0;L;;;;;N;;;;;
+097B;DEVANAGARI LETTER GGA;Lo;0;L;;;;;N;;;;;
+097C;DEVANAGARI LETTER JJA;Lo;0;L;;;;;N;;;;;
+097D;DEVANAGARI LETTER GLOTTAL STOP;Lo;0;L;;;;;N;;;;;
+097E;DEVANAGARI LETTER DDDA;Lo;0;L;;;;;N;;;;;
+097F;DEVANAGARI LETTER BBA;Lo;0;L;;;;;N;;;;;
+0981;BENGALI SIGN CANDRABINDU;Mn;0;NSM;;;;;N;;;;;
+0982;BENGALI SIGN ANUSVARA;Mc;0;L;;;;;N;;;;;
+0983;BENGALI SIGN VISARGA;Mc;0;L;;;;;N;;;;;
+0985;BENGALI LETTER A;Lo;0;L;;;;;N;;;;;
+0986;BENGALI LETTER AA;Lo;0;L;;;;;N;;;;;
+0987;BENGALI LETTER I;Lo;0;L;;;;;N;;;;;
+0988;BENGALI LETTER II;Lo;0;L;;;;;N;;;;;
+0989;BENGALI LETTER U;Lo;0;L;;;;;N;;;;;
+098A;BENGALI LETTER UU;Lo;0;L;;;;;N;;;;;
+098B;BENGALI LETTER VOCALIC R;Lo;0;L;;;;;N;;;;;
+098C;BENGALI LETTER VOCALIC L;Lo;0;L;;;;;N;;;;;
+098F;BENGALI LETTER E;Lo;0;L;;;;;N;;;;;
+0990;BENGALI LETTER AI;Lo;0;L;;;;;N;;;;;
+0993;BENGALI LETTER O;Lo;0;L;;;;;N;;;;;
+0994;BENGALI LETTER AU;Lo;0;L;;;;;N;;;;;
+0995;BENGALI LETTER KA;Lo;0;L;;;;;N;;;;;
+0996;BENGALI LETTER KHA;Lo;0;L;;;;;N;;;;;
+0997;BENGALI LETTER GA;Lo;0;L;;;;;N;;;;;
+0998;BENGALI LETTER GHA;Lo;0;L;;;;;N;;;;;
+0999;BENGALI LETTER NGA;Lo;0;L;;;;;N;;;;;
+099A;BENGALI LETTER CA;Lo;0;L;;;;;N;;;;;
+099B;BENGALI LETTER CHA;Lo;0;L;;;;;N;;;;;
+099C;BENGALI LETTER JA;Lo;0;L;;;;;N;;;;;
+099D;BENGALI LETTER JHA;Lo;0;L;;;;;N;;;;;
+099E;BENGALI LETTER NYA;Lo;0;L;;;;;N;;;;;
+099F;BENGALI LETTER TTA;Lo;0;L;;;;;N;;;;;
+09A0;BENGALI LETTER TTHA;Lo;0;L;;;;;N;;;;;
+09A1;BENGALI LETTER DDA;Lo;0;L;;;;;N;;;;;
+09A2;BENGALI LETTER DDHA;Lo;0;L;;;;;N;;;;;
+09A3;BENGALI LETTER NNA;Lo;0;L;;;;;N;;;;;
+09A4;BENGALI LETTER TA;Lo;0;L;;;;;N;;;;;
+09A5;BENGALI LETTER THA;Lo;0;L;;;;;N;;;;;
+09A6;BENGALI LETTER DA;Lo;0;L;;;;;N;;;;;
+09A7;BENGALI LETTER DHA;Lo;0;L;;;;;N;;;;;
+09A8;BENGALI LETTER NA;Lo;0;L;;;;;N;;;;;
+09AA;BENGALI LETTER PA;Lo;0;L;;;;;N;;;;;
+09AB;BENGALI LETTER PHA;Lo;0;L;;;;;N;;;;;
+09AC;BENGALI LETTER BA;Lo;0;L;;;;;N;;;;;
+09AD;BENGALI LETTER BHA;Lo;0;L;;;;;N;;;;;
+09AE;BENGALI LETTER MA;Lo;0;L;;;;;N;;;;;
+09AF;BENGALI LETTER YA;Lo;0;L;;;;;N;;;;;
+09B0;BENGALI LETTER RA;Lo;0;L;;;;;N;;;;;
+09B2;BENGALI LETTER LA;Lo;0;L;;;;;N;;;;;
+09B6;BENGALI LETTER SHA;Lo;0;L;;;;;N;;;;;
+09B7;BENGALI LETTER SSA;Lo;0;L;;;;;N;;;;;
+09B8;BENGALI LETTER SA;Lo;0;L;;;;;N;;;;;
+09B9;BENGALI LETTER HA;Lo;0;L;;;;;N;;;;;
+09BC;BENGALI SIGN NUKTA;Mn;7;NSM;;;;;N;;;;;
+09BD;BENGALI SIGN AVAGRAHA;Lo;0;L;;;;;N;;;;;
+09BE;BENGALI VOWEL SIGN AA;Mc;0;L;;;;;N;;;;;
+09BF;BENGALI VOWEL SIGN I;Mc;0;L;;;;;N;;;;;
+09C0;BENGALI VOWEL SIGN II;Mc;0;L;;;;;N;;;;;
+09C1;BENGALI VOWEL SIGN U;Mn;0;NSM;;;;;N;;;;;
+09C2;BENGALI VOWEL SIGN UU;Mn;0;NSM;;;;;N;;;;;
+09C3;BENGALI VOWEL SIGN VOCALIC R;Mn;0;NSM;;;;;N;;;;;
+09C4;BENGALI VOWEL SIGN VOCALIC RR;Mn;0;NSM;;;;;N;;;;;
+09C7;BENGALI VOWEL SIGN E;Mc;0;L;;;;;N;;;;;
+09C8;BENGALI VOWEL SIGN AI;Mc;0;L;;;;;N;;;;;
+09CB;BENGALI VOWEL SIGN O;Mc;0;L;09C7 09BE;;;;N;;;;;
+09CC;BENGALI VOWEL SIGN AU;Mc;0;L;09C7 09D7;;;;N;;;;;
+09CD;BENGALI SIGN VIRAMA;Mn;9;NSM;;;;;N;;;;;
+09CE;BENGALI LETTER KHANDA TA;Lo;0;L;;;;;N;;;;;
+09D7;BENGALI AU LENGTH MARK;Mc;0;L;;;;;N;;;;;
+09DC;BENGALI LETTER RRA;Lo;0;L;09A1 09BC;;;;N;;;;;
+09DD;BENGALI LETTER RHA;Lo;0;L;09A2 09BC;;;;N;;;;;
+09DF;BENGALI LETTER YYA;Lo;0;L;09AF 09BC;;;;N;;;;;
+09E0;BENGALI LETTER VOCALIC RR;Lo;0;L;;;;;N;;;;;
+09E1;BENGALI LETTER VOCALIC LL;Lo;0;L;;;;;N;;;;;
+09E2;BENGALI VOWEL SIGN VOCALIC L;Mn;0;NSM;;;;;N;;;;;
+09E3;BENGALI VOWEL SIGN VOCALIC LL;Mn;0;NSM;;;;;N;;;;;
+09E6;BENGALI DIGIT ZERO;Nd;0;L;;0;0;0;N;;;;;
+09E7;BENGALI DIGIT ONE;Nd;0;L;;1;1;1;N;;;;;
+09E8;BENGALI DIGIT TWO;Nd;0;L;;2;2;2;N;;;;;
+09E9;BENGALI DIGIT THREE;Nd;0;L;;3;3;3;N;;;;;
+09EA;BENGALI DIGIT FOUR;Nd;0;L;;4;4;4;N;;;;;
+09EB;BENGALI DIGIT FIVE;Nd;0;L;;5;5;5;N;;;;;
+09EC;BENGALI DIGIT SIX;Nd;0;L;;6;6;6;N;;;;;
+09ED;BENGALI DIGIT SEVEN;Nd;0;L;;7;7;7;N;;;;;
+09EE;BENGALI DIGIT EIGHT;Nd;0;L;;8;8;8;N;;;;;
+09EF;BENGALI DIGIT NINE;Nd;0;L;;9;9;9;N;;;;;
+09F0;BENGALI LETTER RA WITH MIDDLE DIAGONAL;Lo;0;L;;;;;N;;;;;
+09F1;BENGALI LETTER RA WITH LOWER DIAGONAL;Lo;0;L;;;;;N;BENGALI LETTER VA WITH LOWER DIAGONAL;;;;
+09F2;BENGALI RUPEE MARK;Sc;0;ET;;;;;N;;;;;
+09F3;BENGALI RUPEE SIGN;Sc;0;ET;;;;;N;;;;;
+09F4;BENGALI CURRENCY NUMERATOR ONE;No;0;L;;;;1/16;N;;;;;
+09F5;BENGALI CURRENCY NUMERATOR TWO;No;0;L;;;;1/8;N;;;;;
+09F6;BENGALI CURRENCY NUMERATOR THREE;No;0;L;;;;3/16;N;;;;;
+09F7;BENGALI CURRENCY NUMERATOR FOUR;No;0;L;;;;1/4;N;;;;;
+09F8;BENGALI CURRENCY NUMERATOR ONE LESS THAN THE DENOMINATOR;No;0;L;;;;3/4;N;;;;;
+09F9;BENGALI CURRENCY DENOMINATOR SIXTEEN;No;0;L;;;;16;N;;;;;
+09FA;BENGALI ISSHAR;So;0;L;;;;;N;;;;;
+09FB;BENGALI GANDA MARK;Sc;0;ET;;;;;N;;;;;
+0A01;GURMUKHI SIGN ADAK BINDI;Mn;0;NSM;;;;;N;;;;;
+0A02;GURMUKHI SIGN BINDI;Mn;0;NSM;;;;;N;;;;;
+0A03;GURMUKHI SIGN VISARGA;Mc;0;L;;;;;N;;;;;
+0A05;GURMUKHI LETTER A;Lo;0;L;;;;;N;;;;;
+0A06;GURMUKHI LETTER AA;Lo;0;L;;;;;N;;;;;
+0A07;GURMUKHI LETTER I;Lo;0;L;;;;;N;;;;;
+0A08;GURMUKHI LETTER II;Lo;0;L;;;;;N;;;;;
+0A09;GURMUKHI LETTER U;Lo;0;L;;;;;N;;;;;
+0A0A;GURMUKHI LETTER UU;Lo;0;L;;;;;N;;;;;
+0A0F;GURMUKHI LETTER EE;Lo;0;L;;;;;N;;;;;
+0A10;GURMUKHI LETTER AI;Lo;0;L;;;;;N;;;;;
+0A13;GURMUKHI LETTER OO;Lo;0;L;;;;;N;;;;;
+0A14;GURMUKHI LETTER AU;Lo;0;L;;;;;N;;;;;
+0A15;GURMUKHI LETTER KA;Lo;0;L;;;;;N;;;;;
+0A16;GURMUKHI LETTER KHA;Lo;0;L;;;;;N;;;;;
+0A17;GURMUKHI LETTER GA;Lo;0;L;;;;;N;;;;;
+0A18;GURMUKHI LETTER GHA;Lo;0;L;;;;;N;;;;;
+0A19;GURMUKHI LETTER NGA;Lo;0;L;;;;;N;;;;;
+0A1A;GURMUKHI LETTER CA;Lo;0;L;;;;;N;;;;;
+0A1B;GURMUKHI LETTER CHA;Lo;0;L;;;;;N;;;;;
+0A1C;GURMUKHI LETTER JA;Lo;0;L;;;;;N;;;;;
+0A1D;GURMUKHI LETTER JHA;Lo;0;L;;;;;N;;;;;
+0A1E;GURMUKHI LETTER NYA;Lo;0;L;;;;;N;;;;;
+0A1F;GURMUKHI LETTER TTA;Lo;0;L;;;;;N;;;;;
+0A20;GURMUKHI LETTER TTHA;Lo;0;L;;;;;N;;;;;
+0A21;GURMUKHI LETTER DDA;Lo;0;L;;;;;N;;;;;
+0A22;GURMUKHI LETTER DDHA;Lo;0;L;;;;;N;;;;;
+0A23;GURMUKHI LETTER NNA;Lo;0;L;;;;;N;;;;;
+0A24;GURMUKHI LETTER TA;Lo;0;L;;;;;N;;;;;
+0A25;GURMUKHI LETTER THA;Lo;0;L;;;;;N;;;;;
+0A26;GURMUKHI LETTER DA;Lo;0;L;;;;;N;;;;;
+0A27;GURMUKHI LETTER DHA;Lo;0;L;;;;;N;;;;;
+0A28;GURMUKHI LETTER NA;Lo;0;L;;;;;N;;;;;
+0A2A;GURMUKHI LETTER PA;Lo;0;L;;;;;N;;;;;
+0A2B;GURMUKHI LETTER PHA;Lo;0;L;;;;;N;;;;;
+0A2C;GURMUKHI LETTER BA;Lo;0;L;;;;;N;;;;;
+0A2D;GURMUKHI LETTER BHA;Lo;0;L;;;;;N;;;;;
+0A2E;GURMUKHI LETTER MA;Lo;0;L;;;;;N;;;;;
+0A2F;GURMUKHI LETTER YA;Lo;0;L;;;;;N;;;;;
+0A30;GURMUKHI LETTER RA;Lo;0;L;;;;;N;;;;;
+0A32;GURMUKHI LETTER LA;Lo;0;L;;;;;N;;;;;
+0A33;GURMUKHI LETTER LLA;Lo;0;L;0A32 0A3C;;;;N;;;;;
+0A35;GURMUKHI LETTER VA;Lo;0;L;;;;;N;;;;;
+0A36;GURMUKHI LETTER SHA;Lo;0;L;0A38 0A3C;;;;N;;;;;
+0A38;GURMUKHI LETTER SA;Lo;0;L;;;;;N;;;;;
+0A39;GURMUKHI LETTER HA;Lo;0;L;;;;;N;;;;;
+0A3C;GURMUKHI SIGN NUKTA;Mn;7;NSM;;;;;N;;;;;
+0A3E;GURMUKHI VOWEL SIGN AA;Mc;0;L;;;;;N;;;;;
+0A3F;GURMUKHI VOWEL SIGN I;Mc;0;L;;;;;N;;;;;
+0A40;GURMUKHI VOWEL SIGN II;Mc;0;L;;;;;N;;;;;
+0A41;GURMUKHI VOWEL SIGN U;Mn;0;NSM;;;;;N;;;;;
+0A42;GURMUKHI VOWEL SIGN UU;Mn;0;NSM;;;;;N;;;;;
+0A47;GURMUKHI VOWEL SIGN EE;Mn;0;NSM;;;;;N;;;;;
+0A48;GURMUKHI VOWEL SIGN AI;Mn;0;NSM;;;;;N;;;;;
+0A4B;GURMUKHI VOWEL SIGN OO;Mn;0;NSM;;;;;N;;;;;
+0A4C;GURMUKHI VOWEL SIGN AU;Mn;0;NSM;;;;;N;;;;;
+0A4D;GURMUKHI SIGN VIRAMA;Mn;9;NSM;;;;;N;;;;;
+0A51;GURMUKHI SIGN UDAAT;Mn;0;NSM;;;;;N;;;;;
+0A59;GURMUKHI LETTER KHHA;Lo;0;L;0A16 0A3C;;;;N;;;;;
+0A5A;GURMUKHI LETTER GHHA;Lo;0;L;0A17 0A3C;;;;N;;;;;
+0A5B;GURMUKHI LETTER ZA;Lo;0;L;0A1C 0A3C;;;;N;;;;;
+0A5C;GURMUKHI LETTER RRA;Lo;0;L;;;;;N;;;;;
+0A5E;GURMUKHI LETTER FA;Lo;0;L;0A2B 0A3C;;;;N;;;;;
+0A66;GURMUKHI DIGIT ZERO;Nd;0;L;;0;0;0;N;;;;;
+0A67;GURMUKHI DIGIT ONE;Nd;0;L;;1;1;1;N;;;;;
+0A68;GURMUKHI DIGIT TWO;Nd;0;L;;2;2;2;N;;;;;
+0A69;GURMUKHI DIGIT THREE;Nd;0;L;;3;3;3;N;;;;;
+0A6A;GURMUKHI DIGIT FOUR;Nd;0;L;;4;4;4;N;;;;;
+0A6B;GURMUKHI DIGIT FIVE;Nd;0;L;;5;5;5;N;;;;;
+0A6C;GURMUKHI DIGIT SIX;Nd;0;L;;6;6;6;N;;;;;
+0A6D;GURMUKHI DIGIT SEVEN;Nd;0;L;;7;7;7;N;;;;;
+0A6E;GURMUKHI DIGIT EIGHT;Nd;0;L;;8;8;8;N;;;;;
+0A6F;GURMUKHI DIGIT NINE;Nd;0;L;;9;9;9;N;;;;;
+0A70;GURMUKHI TIPPI;Mn;0;NSM;;;;;N;;;;;
+0A71;GURMUKHI ADDAK;Mn;0;NSM;;;;;N;;;;;
+0A72;GURMUKHI IRI;Lo;0;L;;;;;N;;;;;
+0A73;GURMUKHI URA;Lo;0;L;;;;;N;;;;;
+0A74;GURMUKHI EK ONKAR;Lo;0;L;;;;;N;;;;;
+0A75;GURMUKHI SIGN YAKASH;Mn;0;NSM;;;;;N;;;;;
+0A81;GUJARATI SIGN CANDRABINDU;Mn;0;NSM;;;;;N;;;;;
+0A82;GUJARATI SIGN ANUSVARA;Mn;0;NSM;;;;;N;;;;;
+0A83;GUJARATI SIGN VISARGA;Mc;0;L;;;;;N;;;;;
+0A85;GUJARATI LETTER A;Lo;0;L;;;;;N;;;;;
+0A86;GUJARATI LETTER AA;Lo;0;L;;;;;N;;;;;
+0A87;GUJARATI LETTER I;Lo;0;L;;;;;N;;;;;
+0A88;GUJARATI LETTER II;Lo;0;L;;;;;N;;;;;
+0A89;GUJARATI LETTER U;Lo;0;L;;;;;N;;;;;
+0A8A;GUJARATI LETTER UU;Lo;0;L;;;;;N;;;;;
+0A8B;GUJARATI LETTER VOCALIC R;Lo;0;L;;;;;N;;;;;
+0A8C;GUJARATI LETTER VOCALIC L;Lo;0;L;;;;;N;;;;;
+0A8D;GUJARATI VOWEL CANDRA E;Lo;0;L;;;;;N;;;;;
+0A8F;GUJARATI LETTER E;Lo;0;L;;;;;N;;;;;
+0A90;GUJARATI LETTER AI;Lo;0;L;;;;;N;;;;;
+0A91;GUJARATI VOWEL CANDRA O;Lo;0;L;;;;;N;;;;;
+0A93;GUJARATI LETTER O;Lo;0;L;;;;;N;;;;;
+0A94;GUJARATI LETTER AU;Lo;0;L;;;;;N;;;;;
+0A95;GUJARATI LETTER KA;Lo;0;L;;;;;N;;;;;
+0A96;GUJARATI LETTER KHA;Lo;0;L;;;;;N;;;;;
+0A97;GUJARATI LETTER GA;Lo;0;L;;;;;N;;;;;
+0A98;GUJARATI LETTER GHA;Lo;0;L;;;;;N;;;;;
+0A99;GUJARATI LETTER NGA;Lo;0;L;;;;;N;;;;;
+0A9A;GUJARATI LETTER CA;Lo;0;L;;;;;N;;;;;
+0A9B;GUJARATI LETTER CHA;Lo;0;L;;;;;N;;;;;
+0A9C;GUJARATI LETTER JA;Lo;0;L;;;;;N;;;;;
+0A9D;GUJARATI LETTER JHA;Lo;0;L;;;;;N;;;;;
+0A9E;GUJARATI LETTER NYA;Lo;0;L;;;;;N;;;;;
+0A9F;GUJARATI LETTER TTA;Lo;0;L;;;;;N;;;;;
+0AA0;GUJARATI LETTER TTHA;Lo;0;L;;;;;N;;;;;
+0AA1;GUJARATI LETTER DDA;Lo;0;L;;;;;N;;;;;
+0AA2;GUJARATI LETTER DDHA;Lo;0;L;;;;;N;;;;;
+0AA3;GUJARATI LETTER NNA;Lo;0;L;;;;;N;;;;;
+0AA4;GUJARATI LETTER TA;Lo;0;L;;;;;N;;;;;
+0AA5;GUJARATI LETTER THA;Lo;0;L;;;;;N;;;;;
+0AA6;GUJARATI LETTER DA;Lo;0;L;;;;;N;;;;;
+0AA7;GUJARATI LETTER DHA;Lo;0;L;;;;;N;;;;;
+0AA8;GUJARATI LETTER NA;Lo;0;L;;;;;N;;;;;
+0AAA;GUJARATI LETTER PA;Lo;0;L;;;;;N;;;;;
+0AAB;GUJARATI LETTER PHA;Lo;0;L;;;;;N;;;;;
+0AAC;GUJARATI LETTER BA;Lo;0;L;;;;;N;;;;;
+0AAD;GUJARATI LETTER BHA;Lo;0;L;;;;;N;;;;;
+0AAE;GUJARATI LETTER MA;Lo;0;L;;;;;N;;;;;
+0AAF;GUJARATI LETTER YA;Lo;0;L;;;;;N;;;;;
+0AB0;GUJARATI LETTER RA;Lo;0;L;;;;;N;;;;;
+0AB2;GUJARATI LETTER LA;Lo;0;L;;;;;N;;;;;
+0AB3;GUJARATI LETTER LLA;Lo;0;L;;;;;N;;;;;
+0AB5;GUJARATI LETTER VA;Lo;0;L;;;;;N;;;;;
+0AB6;GUJARATI LETTER SHA;Lo;0;L;;;;;N;;;;;
+0AB7;GUJARATI LETTER SSA;Lo;0;L;;;;;N;;;;;
+0AB8;GUJARATI LETTER SA;Lo;0;L;;;;;N;;;;;
+0AB9;GUJARATI LETTER HA;Lo;0;L;;;;;N;;;;;
+0ABC;GUJARATI SIGN NUKTA;Mn;7;NSM;;;;;N;;;;;
+0ABD;GUJARATI SIGN AVAGRAHA;Lo;0;L;;;;;N;;;;;
+0ABE;GUJARATI VOWEL SIGN AA;Mc;0;L;;;;;N;;;;;
+0ABF;GUJARATI VOWEL SIGN I;Mc;0;L;;;;;N;;;;;
+0AC0;GUJARATI VOWEL SIGN II;Mc;0;L;;;;;N;;;;;
+0AC1;GUJARATI VOWEL SIGN U;Mn;0;NSM;;;;;N;;;;;
+0AC2;GUJARATI VOWEL SIGN UU;Mn;0;NSM;;;;;N;;;;;
+0AC3;GUJARATI VOWEL SIGN VOCALIC R;Mn;0;NSM;;;;;N;;;;;
+0AC4;GUJARATI VOWEL SIGN VOCALIC RR;Mn;0;NSM;;;;;N;;;;;
+0AC5;GUJARATI VOWEL SIGN CANDRA E;Mn;0;NSM;;;;;N;;;;;
+0AC7;GUJARATI VOWEL SIGN E;Mn;0;NSM;;;;;N;;;;;
+0AC8;GUJARATI VOWEL SIGN AI;Mn;0;NSM;;;;;N;;;;;
+0AC9;GUJARATI VOWEL SIGN CANDRA O;Mc;0;L;;;;;N;;;;;
+0ACB;GUJARATI VOWEL SIGN O;Mc;0;L;;;;;N;;;;;
+0ACC;GUJARATI VOWEL SIGN AU;Mc;0;L;;;;;N;;;;;
+0ACD;GUJARATI SIGN VIRAMA;Mn;9;NSM;;;;;N;;;;;
+0AD0;GUJARATI OM;Lo;0;L;;;;;N;;;;;
+0AE0;GUJARATI LETTER VOCALIC RR;Lo;0;L;;;;;N;;;;;
+0AE1;GUJARATI LETTER VOCALIC LL;Lo;0;L;;;;;N;;;;;
+0AE2;GUJARATI VOWEL SIGN VOCALIC L;Mn;0;NSM;;;;;N;;;;;
+0AE3;GUJARATI VOWEL SIGN VOCALIC LL;Mn;0;NSM;;;;;N;;;;;
+0AE6;GUJARATI DIGIT ZERO;Nd;0;L;;0;0;0;N;;;;;
+0AE7;GUJARATI DIGIT ONE;Nd;0;L;;1;1;1;N;;;;;
+0AE8;GUJARATI DIGIT TWO;Nd;0;L;;2;2;2;N;;;;;
+0AE9;GUJARATI DIGIT THREE;Nd;0;L;;3;3;3;N;;;;;
+0AEA;GUJARATI DIGIT FOUR;Nd;0;L;;4;4;4;N;;;;;
+0AEB;GUJARATI DIGIT FIVE;Nd;0;L;;5;5;5;N;;;;;
+0AEC;GUJARATI DIGIT SIX;Nd;0;L;;6;6;6;N;;;;;
+0AED;GUJARATI DIGIT SEVEN;Nd;0;L;;7;7;7;N;;;;;
+0AEE;GUJARATI DIGIT EIGHT;Nd;0;L;;8;8;8;N;;;;;
+0AEF;GUJARATI DIGIT NINE;Nd;0;L;;9;9;9;N;;;;;
+0AF0;GUJARATI ABBREVIATION SIGN;Po;0;L;;;;;N;;;;;
+0AF1;GUJARATI RUPEE SIGN;Sc;0;ET;;;;;N;;;;;
+0B01;ORIYA SIGN CANDRABINDU;Mn;0;NSM;;;;;N;;;;;
+0B02;ORIYA SIGN ANUSVARA;Mc;0;L;;;;;N;;;;;
+0B03;ORIYA SIGN VISARGA;Mc;0;L;;;;;N;;;;;
+0B05;ORIYA LETTER A;Lo;0;L;;;;;N;;;;;
+0B06;ORIYA LETTER AA;Lo;0;L;;;;;N;;;;;
+0B07;ORIYA LETTER I;Lo;0;L;;;;;N;;;;;
+0B08;ORIYA LETTER II;Lo;0;L;;;;;N;;;;;
+0B09;ORIYA LETTER U;Lo;0;L;;;;;N;;;;;
+0B0A;ORIYA LETTER UU;Lo;0;L;;;;;N;;;;;
+0B0B;ORIYA LETTER VOCALIC R;Lo;0;L;;;;;N;;;;;
+0B0C;ORIYA LETTER VOCALIC L;Lo;0;L;;;;;N;;;;;
+0B0F;ORIYA LETTER E;Lo;0;L;;;;;N;;;;;
+0B10;ORIYA LETTER AI;Lo;0;L;;;;;N;;;;;
+0B13;ORIYA LETTER O;Lo;0;L;;;;;N;;;;;
+0B14;ORIYA LETTER AU;Lo;0;L;;;;;N;;;;;
+0B15;ORIYA LETTER KA;Lo;0;L;;;;;N;;;;;
+0B16;ORIYA LETTER KHA;Lo;0;L;;;;;N;;;;;
+0B17;ORIYA LETTER GA;Lo;0;L;;;;;N;;;;;
+0B18;ORIYA LETTER GHA;Lo;0;L;;;;;N;;;;;
+0B19;ORIYA LETTER NGA;Lo;0;L;;;;;N;;;;;
+0B1A;ORIYA LETTER CA;Lo;0;L;;;;;N;;;;;
+0B1B;ORIYA LETTER CHA;Lo;0;L;;;;;N;;;;;
+0B1C;ORIYA LETTER JA;Lo;0;L;;;;;N;;;;;
+0B1D;ORIYA LETTER JHA;Lo;0;L;;;;;N;;;;;
+0B1E;ORIYA LETTER NYA;Lo;0;L;;;;;N;;;;;
+0B1F;ORIYA LETTER TTA;Lo;0;L;;;;;N;;;;;
+0B20;ORIYA LETTER TTHA;Lo;0;L;;;;;N;;;;;
+0B21;ORIYA LETTER DDA;Lo;0;L;;;;;N;;;;;
+0B22;ORIYA LETTER DDHA;Lo;0;L;;;;;N;;;;;
+0B23;ORIYA LETTER NNA;Lo;0;L;;;;;N;;;;;
+0B24;ORIYA LETTER TA;Lo;0;L;;;;;N;;;;;
+0B25;ORIYA LETTER THA;Lo;0;L;;;;;N;;;;;
+0B26;ORIYA LETTER DA;Lo;0;L;;;;;N;;;;;
+0B27;ORIYA LETTER DHA;Lo;0;L;;;;;N;;;;;
+0B28;ORIYA LETTER NA;Lo;0;L;;;;;N;;;;;
+0B2A;ORIYA LETTER PA;Lo;0;L;;;;;N;;;;;
+0B2B;ORIYA LETTER PHA;Lo;0;L;;;;;N;;;;;
+0B2C;ORIYA LETTER BA;Lo;0;L;;;;;N;;;;;
+0B2D;ORIYA LETTER BHA;Lo;0;L;;;;;N;;;;;
+0B2E;ORIYA LETTER MA;Lo;0;L;;;;;N;;;;;
+0B2F;ORIYA LETTER YA;Lo;0;L;;;;;N;;;;;
+0B30;ORIYA LETTER RA;Lo;0;L;;;;;N;;;;;
+0B32;ORIYA LETTER LA;Lo;0;L;;;;;N;;;;;
+0B33;ORIYA LETTER LLA;Lo;0;L;;;;;N;;;;;
+0B35;ORIYA LETTER VA;Lo;0;L;;;;;N;;;;;
+0B36;ORIYA LETTER SHA;Lo;0;L;;;;;N;;;;;
+0B37;ORIYA LETTER SSA;Lo;0;L;;;;;N;;;;;
+0B38;ORIYA LETTER SA;Lo;0;L;;;;;N;;;;;
+0B39;ORIYA LETTER HA;Lo;0;L;;;;;N;;;;;
+0B3C;ORIYA SIGN NUKTA;Mn;7;NSM;;;;;N;;;;;
+0B3D;ORIYA SIGN AVAGRAHA;Lo;0;L;;;;;N;;;;;
+0B3E;ORIYA VOWEL SIGN AA;Mc;0;L;;;;;N;;;;;
+0B3F;ORIYA VOWEL SIGN I;Mn;0;NSM;;;;;N;;;;;
+0B40;ORIYA VOWEL SIGN II;Mc;0;L;;;;;N;;;;;
+0B41;ORIYA VOWEL SIGN U;Mn;0;NSM;;;;;N;;;;;
+0B42;ORIYA VOWEL SIGN UU;Mn;0;NSM;;;;;N;;;;;
+0B43;ORIYA VOWEL SIGN VOCALIC R;Mn;0;NSM;;;;;N;;;;;
+0B44;ORIYA VOWEL SIGN VOCALIC RR;Mn;0;NSM;;;;;N;;;;;
+0B47;ORIYA VOWEL SIGN E;Mc;0;L;;;;;N;;;;;
+0B48;ORIYA VOWEL SIGN AI;Mc;0;L;0B47 0B56;;;;N;;;;;
+0B4B;ORIYA VOWEL SIGN O;Mc;0;L;0B47 0B3E;;;;N;;;;;
+0B4C;ORIYA VOWEL SIGN AU;Mc;0;L;0B47 0B57;;;;N;;;;;
+0B4D;ORIYA SIGN VIRAMA;Mn;9;NSM;;;;;N;;;;;
+0B56;ORIYA AI LENGTH MARK;Mn;0;NSM;;;;;N;;;;;
+0B57;ORIYA AU LENGTH MARK;Mc;0;L;;;;;N;;;;;
+0B5C;ORIYA LETTER RRA;Lo;0;L;0B21 0B3C;;;;N;;;;;
+0B5D;ORIYA LETTER RHA;Lo;0;L;0B22 0B3C;;;;N;;;;;
+0B5F;ORIYA LETTER YYA;Lo;0;L;;;;;N;;;;;
+0B60;ORIYA LETTER VOCALIC RR;Lo;0;L;;;;;N;;;;;
+0B61;ORIYA LETTER VOCALIC LL;Lo;0;L;;;;;N;;;;;
+0B62;ORIYA VOWEL SIGN VOCALIC L;Mn;0;NSM;;;;;N;;;;;
+0B63;ORIYA VOWEL SIGN VOCALIC LL;Mn;0;NSM;;;;;N;;;;;
+0B66;ORIYA DIGIT ZERO;Nd;0;L;;0;0;0;N;;;;;
+0B67;ORIYA DIGIT ONE;Nd;0;L;;1;1;1;N;;;;;
+0B68;ORIYA DIGIT TWO;Nd;0;L;;2;2;2;N;;;;;
+0B69;ORIYA DIGIT THREE;Nd;0;L;;3;3;3;N;;;;;
+0B6A;ORIYA DIGIT FOUR;Nd;0;L;;4;4;4;N;;;;;
+0B6B;ORIYA DIGIT FIVE;Nd;0;L;;5;5;5;N;;;;;
+0B6C;ORIYA DIGIT SIX;Nd;0;L;;6;6;6;N;;;;;
+0B6D;ORIYA DIGIT SEVEN;Nd;0;L;;7;7;7;N;;;;;
+0B6E;ORIYA DIGIT EIGHT;Nd;0;L;;8;8;8;N;;;;;
+0B6F;ORIYA DIGIT NINE;Nd;0;L;;9;9;9;N;;;;;
+0B70;ORIYA ISSHAR;So;0;L;;;;;N;;;;;
+0B71;ORIYA LETTER WA;Lo;0;L;;;;;N;;;;;
+0B72;ORIYA FRACTION ONE QUARTER;No;0;L;;;;1/4;N;;;;;
+0B73;ORIYA FRACTION ONE HALF;No;0;L;;;;1/2;N;;;;;
+0B74;ORIYA FRACTION THREE QUARTERS;No;0;L;;;;3/4;N;;;;;
+0B75;ORIYA FRACTION ONE SIXTEENTH;No;0;L;;;;1/16;N;;;;;
+0B76;ORIYA FRACTION ONE EIGHTH;No;0;L;;;;1/8;N;;;;;
+0B77;ORIYA FRACTION THREE SIXTEENTHS;No;0;L;;;;3/16;N;;;;;
+0B82;TAMIL SIGN ANUSVARA;Mn;0;NSM;;;;;N;;;;;
+0B83;TAMIL SIGN VISARGA;Lo;0;L;;;;;N;;;;;
+0B85;TAMIL LETTER A;Lo;0;L;;;;;N;;;;;
+0B86;TAMIL LETTER AA;Lo;0;L;;;;;N;;;;;
+0B87;TAMIL LETTER I;Lo;0;L;;;;;N;;;;;
+0B88;TAMIL LETTER II;Lo;0;L;;;;;N;;;;;
+0B89;TAMIL LETTER U;Lo;0;L;;;;;N;;;;;
+0B8A;TAMIL LETTER UU;Lo;0;L;;;;;N;;;;;
+0B8E;TAMIL LETTER E;Lo;0;L;;;;;N;;;;;
+0B8F;TAMIL LETTER EE;Lo;0;L;;;;;N;;;;;
+0B90;TAMIL LETTER AI;Lo;0;L;;;;;N;;;;;
+0B92;TAMIL LETTER O;Lo;0;L;;;;;N;;;;;
+0B93;TAMIL LETTER OO;Lo;0;L;;;;;N;;;;;
+0B94;TAMIL LETTER AU;Lo;0;L;0B92 0BD7;;;;N;;;;;
+0B95;TAMIL LETTER KA;Lo;0;L;;;;;N;;;;;
+0B99;TAMIL LETTER NGA;Lo;0;L;;;;;N;;;;;
+0B9A;TAMIL LETTER CA;Lo;0;L;;;;;N;;;;;
+0B9C;TAMIL LETTER JA;Lo;0;L;;;;;N;;;;;
+0B9E;TAMIL LETTER NYA;Lo;0;L;;;;;N;;;;;
+0B9F;TAMIL LETTER TTA;Lo;0;L;;;;;N;;;;;
+0BA3;TAMIL LETTER NNA;Lo;0;L;;;;;N;;;;;
+0BA4;TAMIL LETTER TA;Lo;0;L;;;;;N;;;;;
+0BA8;TAMIL LETTER NA;Lo;0;L;;;;;N;;;;;
+0BA9;TAMIL LETTER NNNA;Lo;0;L;;;;;N;;;;;
+0BAA;TAMIL LETTER PA;Lo;0;L;;;;;N;;;;;
+0BAE;TAMIL LETTER MA;Lo;0;L;;;;;N;;;;;
+0BAF;TAMIL LETTER YA;Lo;0;L;;;;;N;;;;;
+0BB0;TAMIL LETTER RA;Lo;0;L;;;;;N;;;;;
+0BB1;TAMIL LETTER RRA;Lo;0;L;;;;;N;;;;;
+0BB2;TAMIL LETTER LA;Lo;0;L;;;;;N;;;;;
+0BB3;TAMIL LETTER LLA;Lo;0;L;;;;;N;;;;;
+0BB4;TAMIL LETTER LLLA;Lo;0;L;;;;;N;;;;;
+0BB5;TAMIL LETTER VA;Lo;0;L;;;;;N;;;;;
+0BB6;TAMIL LETTER SHA;Lo;0;L;;;;;N;;;;;
+0BB7;TAMIL LETTER SSA;Lo;0;L;;;;;N;;;;;
+0BB8;TAMIL LETTER SA;Lo;0;L;;;;;N;;;;;
+0BB9;TAMIL LETTER HA;Lo;0;L;;;;;N;;;;;
+0BBE;TAMIL VOWEL SIGN AA;Mc;0;L;;;;;N;;;;;
+0BBF;TAMIL VOWEL SIGN I;Mc;0;L;;;;;N;;;;;
+0BC0;TAMIL VOWEL SIGN II;Mn;0;NSM;;;;;N;;;;;
+0BC1;TAMIL VOWEL SIGN U;Mc;0;L;;;;;N;;;;;
+0BC2;TAMIL VOWEL SIGN UU;Mc;0;L;;;;;N;;;;;
+0BC6;TAMIL VOWEL SIGN E;Mc;0;L;;;;;N;;;;;
+0BC7;TAMIL VOWEL SIGN EE;Mc;0;L;;;;;N;;;;;
+0BC8;TAMIL VOWEL SIGN AI;Mc;0;L;;;;;N;;;;;
+0BCA;TAMIL VOWEL SIGN O;Mc;0;L;0BC6 0BBE;;;;N;;;;;
+0BCB;TAMIL VOWEL SIGN OO;Mc;0;L;0BC7 0BBE;;;;N;;;;;
+0BCC;TAMIL VOWEL SIGN AU;Mc;0;L;0BC6 0BD7;;;;N;;;;;
+0BCD;TAMIL SIGN VIRAMA;Mn;9;NSM;;;;;N;;;;;
+0BD0;TAMIL OM;Lo;0;L;;;;;N;;;;;
+0BD7;TAMIL AU LENGTH MARK;Mc;0;L;;;;;N;;;;;
+0BE6;TAMIL DIGIT ZERO;Nd;0;L;;0;0;0;N;;;;;
+0BE7;TAMIL DIGIT ONE;Nd;0;L;;1;1;1;N;;;;;
+0BE8;TAMIL DIGIT TWO;Nd;0;L;;2;2;2;N;;;;;
+0BE9;TAMIL DIGIT THREE;Nd;0;L;;3;3;3;N;;;;;
+0BEA;TAMIL DIGIT FOUR;Nd;0;L;;4;4;4;N;;;;;
+0BEB;TAMIL DIGIT FIVE;Nd;0;L;;5;5;5;N;;;;;
+0BEC;TAMIL DIGIT SIX;Nd;0;L;;6;6;6;N;;;;;
+0BED;TAMIL DIGIT SEVEN;Nd;0;L;;7;7;7;N;;;;;
+0BEE;TAMIL DIGIT EIGHT;Nd;0;L;;8;8;8;N;;;;;
+0BEF;TAMIL DIGIT NINE;Nd;0;L;;9;9;9;N;;;;;
+0BF0;TAMIL NUMBER TEN;No;0;L;;;;10;N;;;;;
+0BF1;TAMIL NUMBER ONE HUNDRED;No;0;L;;;;100;N;;;;;
+0BF2;TAMIL NUMBER ONE THOUSAND;No;0;L;;;;1000;N;;;;;
+0BF3;TAMIL DAY SIGN;So;0;ON;;;;;N;;;;;
+0BF4;TAMIL MONTH SIGN;So;0;ON;;;;;N;;;;;
+0BF5;TAMIL YEAR SIGN;So;0;ON;;;;;N;;;;;
+0BF6;TAMIL DEBIT SIGN;So;0;ON;;;;;N;;;;;
+0BF7;TAMIL CREDIT SIGN;So;0;ON;;;;;N;;;;;
+0BF8;TAMIL AS ABOVE SIGN;So;0;ON;;;;;N;;;;;
+0BF9;TAMIL RUPEE SIGN;Sc;0;ET;;;;;N;;;;;
+0BFA;TAMIL NUMBER SIGN;So;0;ON;;;;;N;;;;;
+0C01;TELUGU SIGN CANDRABINDU;Mc;0;L;;;;;N;;;;;
+0C02;TELUGU SIGN ANUSVARA;Mc;0;L;;;;;N;;;;;
+0C03;TELUGU SIGN VISARGA;Mc;0;L;;;;;N;;;;;
+0C05;TELUGU LETTER A;Lo;0;L;;;;;N;;;;;
+0C06;TELUGU LETTER AA;Lo;0;L;;;;;N;;;;;
+0C07;TELUGU LETTER I;Lo;0;L;;;;;N;;;;;
+0C08;TELUGU LETTER II;Lo;0;L;;;;;N;;;;;
+0C09;TELUGU LETTER U;Lo;0;L;;;;;N;;;;;
+0C0A;TELUGU LETTER UU;Lo;0;L;;;;;N;;;;;
+0C0B;TELUGU LETTER VOCALIC R;Lo;0;L;;;;;N;;;;;
+0C0C;TELUGU LETTER VOCALIC L;Lo;0;L;;;;;N;;;;;
+0C0E;TELUGU LETTER E;Lo;0;L;;;;;N;;;;;
+0C0F;TELUGU LETTER EE;Lo;0;L;;;;;N;;;;;
+0C10;TELUGU LETTER AI;Lo;0;L;;;;;N;;;;;
+0C12;TELUGU LETTER O;Lo;0;L;;;;;N;;;;;
+0C13;TELUGU LETTER OO;Lo;0;L;;;;;N;;;;;
+0C14;TELUGU LETTER AU;Lo;0;L;;;;;N;;;;;
+0C15;TELUGU LETTER KA;Lo;0;L;;;;;N;;;;;
+0C16;TELUGU LETTER KHA;Lo;0;L;;;;;N;;;;;
+0C17;TELUGU LETTER GA;Lo;0;L;;;;;N;;;;;
+0C18;TELUGU LETTER GHA;Lo;0;L;;;;;N;;;;;
+0C19;TELUGU LETTER NGA;Lo;0;L;;;;;N;;;;;
+0C1A;TELUGU LETTER CA;Lo;0;L;;;;;N;;;;;
+0C1B;TELUGU LETTER CHA;Lo;0;L;;;;;N;;;;;
+0C1C;TELUGU LETTER JA;Lo;0;L;;;;;N;;;;;
+0C1D;TELUGU LETTER JHA;Lo;0;L;;;;;N;;;;;
+0C1E;TELUGU LETTER NYA;Lo;0;L;;;;;N;;;;;
+0C1F;TELUGU LETTER TTA;Lo;0;L;;;;;N;;;;;
+0C20;TELUGU LETTER TTHA;Lo;0;L;;;;;N;;;;;
+0C21;TELUGU LETTER DDA;Lo;0;L;;;;;N;;;;;
+0C22;TELUGU LETTER DDHA;Lo;0;L;;;;;N;;;;;
+0C23;TELUGU LETTER NNA;Lo;0;L;;;;;N;;;;;
+0C24;TELUGU LETTER TA;Lo;0;L;;;;;N;;;;;
+0C25;TELUGU LETTER THA;Lo;0;L;;;;;N;;;;;
+0C26;TELUGU LETTER DA;Lo;0;L;;;;;N;;;;;
+0C27;TELUGU LETTER DHA;Lo;0;L;;;;;N;;;;;
+0C28;TELUGU LETTER NA;Lo;0;L;;;;;N;;;;;
+0C2A;TELUGU LETTER PA;Lo;0;L;;;;;N;;;;;
+0C2B;TELUGU LETTER PHA;Lo;0;L;;;;;N;;;;;
+0C2C;TELUGU LETTER BA;Lo;0;L;;;;;N;;;;;
+0C2D;TELUGU LETTER BHA;Lo;0;L;;;;;N;;;;;
+0C2E;TELUGU LETTER MA;Lo;0;L;;;;;N;;;;;
+0C2F;TELUGU LETTER YA;Lo;0;L;;;;;N;;;;;
+0C30;TELUGU LETTER RA;Lo;0;L;;;;;N;;;;;
+0C31;TELUGU LETTER RRA;Lo;0;L;;;;;N;;;;;
+0C32;TELUGU LETTER LA;Lo;0;L;;;;;N;;;;;
+0C33;TELUGU LETTER LLA;Lo;0;L;;;;;N;;;;;
+0C35;TELUGU LETTER VA;Lo;0;L;;;;;N;;;;;
+0C36;TELUGU LETTER SHA;Lo;0;L;;;;;N;;;;;
+0C37;TELUGU LETTER SSA;Lo;0;L;;;;;N;;;;;
+0C38;TELUGU LETTER SA;Lo;0;L;;;;;N;;;;;
+0C39;TELUGU LETTER HA;Lo;0;L;;;;;N;;;;;
+0C3D;TELUGU SIGN AVAGRAHA;Lo;0;L;;;;;N;;;;;
+0C3E;TELUGU VOWEL SIGN AA;Mn;0;NSM;;;;;N;;;;;
+0C3F;TELUGU VOWEL SIGN I;Mn;0;NSM;;;;;N;;;;;
+0C40;TELUGU VOWEL SIGN II;Mn;0;NSM;;;;;N;;;;;
+0C41;TELUGU VOWEL SIGN U;Mc;0;L;;;;;N;;;;;
+0C42;TELUGU VOWEL SIGN UU;Mc;0;L;;;;;N;;;;;
+0C43;TELUGU VOWEL SIGN VOCALIC R;Mc;0;L;;;;;N;;;;;
+0C44;TELUGU VOWEL SIGN VOCALIC RR;Mc;0;L;;;;;N;;;;;
+0C46;TELUGU VOWEL SIGN E;Mn;0;NSM;;;;;N;;;;;
+0C47;TELUGU VOWEL SIGN EE;Mn;0;NSM;;;;;N;;;;;
+0C48;TELUGU VOWEL SIGN AI;Mn;0;NSM;0C46 0C56;;;;N;;;;;
+0C4A;TELUGU VOWEL SIGN O;Mn;0;NSM;;;;;N;;;;;
+0C4B;TELUGU VOWEL SIGN OO;Mn;0;NSM;;;;;N;;;;;
+0C4C;TELUGU VOWEL SIGN AU;Mn;0;NSM;;;;;N;;;;;
+0C4D;TELUGU SIGN VIRAMA;Mn;9;NSM;;;;;N;;;;;
+0C55;TELUGU LENGTH MARK;Mn;84;NSM;;;;;N;;;;;
+0C56;TELUGU AI LENGTH MARK;Mn;91;NSM;;;;;N;;;;;
+0C58;TELUGU LETTER TSA;Lo;0;L;;;;;N;;;;;
+0C59;TELUGU LETTER DZA;Lo;0;L;;;;;N;;;;;
+0C60;TELUGU LETTER VOCALIC RR;Lo;0;L;;;;;N;;;;;
+0C61;TELUGU LETTER VOCALIC LL;Lo;0;L;;;;;N;;;;;
+0C62;TELUGU VOWEL SIGN VOCALIC L;Mn;0;NSM;;;;;N;;;;;
+0C63;TELUGU VOWEL SIGN VOCALIC LL;Mn;0;NSM;;;;;N;;;;;
+0C66;TELUGU DIGIT ZERO;Nd;0;L;;0;0;0;N;;;;;
+0C67;TELUGU DIGIT ONE;Nd;0;L;;1;1;1;N;;;;;
+0C68;TELUGU DIGIT TWO;Nd;0;L;;2;2;2;N;;;;;
+0C69;TELUGU DIGIT THREE;Nd;0;L;;3;3;3;N;;;;;
+0C6A;TELUGU DIGIT FOUR;Nd;0;L;;4;4;4;N;;;;;
+0C6B;TELUGU DIGIT FIVE;Nd;0;L;;5;5;5;N;;;;;
+0C6C;TELUGU DIGIT SIX;Nd;0;L;;6;6;6;N;;;;;
+0C6D;TELUGU DIGIT SEVEN;Nd;0;L;;7;7;7;N;;;;;
+0C6E;TELUGU DIGIT EIGHT;Nd;0;L;;8;8;8;N;;;;;
+0C6F;TELUGU DIGIT NINE;Nd;0;L;;9;9;9;N;;;;;
+0C78;TELUGU FRACTION DIGIT ZERO FOR ODD POWERS OF FOUR;No;0;ON;;;;0;N;;;;;
+0C79;TELUGU FRACTION DIGIT ONE FOR ODD POWERS OF FOUR;No;0;ON;;;;1;N;;;;;
+0C7A;TELUGU FRACTION DIGIT TWO FOR ODD POWERS OF FOUR;No;0;ON;;;;2;N;;;;;
+0C7B;TELUGU FRACTION DIGIT THREE FOR ODD POWERS OF FOUR;No;0;ON;;;;3;N;;;;;
+0C7C;TELUGU FRACTION DIGIT ONE FOR EVEN POWERS OF FOUR;No;0;ON;;;;1;N;;;;;
+0C7D;TELUGU FRACTION DIGIT TWO FOR EVEN POWERS OF FOUR;No;0;ON;;;;2;N;;;;;
+0C7E;TELUGU FRACTION DIGIT THREE FOR EVEN POWERS OF FOUR;No;0;ON;;;;3;N;;;;;
+0C7F;TELUGU SIGN TUUMU;So;0;L;;;;;N;;;;;
+0C82;KANNADA SIGN ANUSVARA;Mc;0;L;;;;;N;;;;;
+0C83;KANNADA SIGN VISARGA;Mc;0;L;;;;;N;;;;;
+0C85;KANNADA LETTER A;Lo;0;L;;;;;N;;;;;
+0C86;KANNADA LETTER AA;Lo;0;L;;;;;N;;;;;
+0C87;KANNADA LETTER I;Lo;0;L;;;;;N;;;;;
+0C88;KANNADA LETTER II;Lo;0;L;;;;;N;;;;;
+0C89;KANNADA LETTER U;Lo;0;L;;;;;N;;;;;
+0C8A;KANNADA LETTER UU;Lo;0;L;;;;;N;;;;;
+0C8B;KANNADA LETTER VOCALIC R;Lo;0;L;;;;;N;;;;;
+0C8C;KANNADA LETTER VOCALIC L;Lo;0;L;;;;;N;;;;;
+0C8E;KANNADA LETTER E;Lo;0;L;;;;;N;;;;;
+0C8F;KANNADA LETTER EE;Lo;0;L;;;;;N;;;;;
+0C90;KANNADA LETTER AI;Lo;0;L;;;;;N;;;;;
+0C92;KANNADA LETTER O;Lo;0;L;;;;;N;;;;;
+0C93;KANNADA LETTER OO;Lo;0;L;;;;;N;;;;;
+0C94;KANNADA LETTER AU;Lo;0;L;;;;;N;;;;;
+0C95;KANNADA LETTER KA;Lo;0;L;;;;;N;;;;;
+0C96;KANNADA LETTER KHA;Lo;0;L;;;;;N;;;;;
+0C97;KANNADA LETTER GA;Lo;0;L;;;;;N;;;;;
+0C98;KANNADA LETTER GHA;Lo;0;L;;;;;N;;;;;
+0C99;KANNADA LETTER NGA;Lo;0;L;;;;;N;;;;;
+0C9A;KANNADA LETTER CA;Lo;0;L;;;;;N;;;;;
+0C9B;KANNADA LETTER CHA;Lo;0;L;;;;;N;;;;;
+0C9C;KANNADA LETTER JA;Lo;0;L;;;;;N;;;;;
+0C9D;KANNADA LETTER JHA;Lo;0;L;;;;;N;;;;;
+0C9E;KANNADA LETTER NYA;Lo;0;L;;;;;N;;;;;
+0C9F;KANNADA LETTER TTA;Lo;0;L;;;;;N;;;;;
+0CA0;KANNADA LETTER TTHA;Lo;0;L;;;;;N;;;;;
+0CA1;KANNADA LETTER DDA;Lo;0;L;;;;;N;;;;;
+0CA2;KANNADA LETTER DDHA;Lo;0;L;;;;;N;;;;;
+0CA3;KANNADA LETTER NNA;Lo;0;L;;;;;N;;;;;
+0CA4;KANNADA LETTER TA;Lo;0;L;;;;;N;;;;;
+0CA5;KANNADA LETTER THA;Lo;0;L;;;;;N;;;;;
+0CA6;KANNADA LETTER DA;Lo;0;L;;;;;N;;;;;
+0CA7;KANNADA LETTER DHA;Lo;0;L;;;;;N;;;;;
+0CA8;KANNADA LETTER NA;Lo;0;L;;;;;N;;;;;
+0CAA;KANNADA LETTER PA;Lo;0;L;;;;;N;;;;;
+0CAB;KANNADA LETTER PHA;Lo;0;L;;;;;N;;;;;
+0CAC;KANNADA LETTER BA;Lo;0;L;;;;;N;;;;;
+0CAD;KANNADA LETTER BHA;Lo;0;L;;;;;N;;;;;
+0CAE;KANNADA LETTER MA;Lo;0;L;;;;;N;;;;;
+0CAF;KANNADA LETTER YA;Lo;0;L;;;;;N;;;;;
+0CB0;KANNADA LETTER RA;Lo;0;L;;;;;N;;;;;
+0CB1;KANNADA LETTER RRA;Lo;0;L;;;;;N;;;;;
+0CB2;KANNADA LETTER LA;Lo;0;L;;;;;N;;;;;
+0CB3;KANNADA LETTER LLA;Lo;0;L;;;;;N;;;;;
+0CB5;KANNADA LETTER VA;Lo;0;L;;;;;N;;;;;
+0CB6;KANNADA LETTER SHA;Lo;0;L;;;;;N;;;;;
+0CB7;KANNADA LETTER SSA;Lo;0;L;;;;;N;;;;;
+0CB8;KANNADA LETTER SA;Lo;0;L;;;;;N;;;;;
+0CB9;KANNADA LETTER HA;Lo;0;L;;;;;N;;;;;
+0CBC;KANNADA SIGN NUKTA;Mn;7;NSM;;;;;N;;;;;
+0CBD;KANNADA SIGN AVAGRAHA;Lo;0;L;;;;;N;;;;;
+0CBE;KANNADA VOWEL SIGN AA;Mc;0;L;;;;;N;;;;;
+0CBF;KANNADA VOWEL SIGN I;Mn;0;L;;;;;N;;;;;
+0CC0;KANNADA VOWEL SIGN II;Mc;0;L;0CBF 0CD5;;;;N;;;;;
+0CC1;KANNADA VOWEL SIGN U;Mc;0;L;;;;;N;;;;;
+0CC2;KANNADA VOWEL SIGN UU;Mc;0;L;;;;;N;;;;;
+0CC3;KANNADA VOWEL SIGN VOCALIC R;Mc;0;L;;;;;N;;;;;
+0CC4;KANNADA VOWEL SIGN VOCALIC RR;Mc;0;L;;;;;N;;;;;
+0CC6;KANNADA VOWEL SIGN E;Mn;0;L;;;;;N;;;;;
+0CC7;KANNADA VOWEL SIGN EE;Mc;0;L;0CC6 0CD5;;;;N;;;;;
+0CC8;KANNADA VOWEL SIGN AI;Mc;0;L;0CC6 0CD6;;;;N;;;;;
+0CCA;KANNADA VOWEL SIGN O;Mc;0;L;0CC6 0CC2;;;;N;;;;;
+0CCB;KANNADA VOWEL SIGN OO;Mc;0;L;0CCA 0CD5;;;;N;;;;;
+0CCC;KANNADA VOWEL SIGN AU;Mn;0;NSM;;;;;N;;;;;
+0CCD;KANNADA SIGN VIRAMA;Mn;9;NSM;;;;;N;;;;;
+0CD5;KANNADA LENGTH MARK;Mc;0;L;;;;;N;;;;;
+0CD6;KANNADA AI LENGTH MARK;Mc;0;L;;;;;N;;;;;
+0CDE;KANNADA LETTER FA;Lo;0;L;;;;;N;;;;;
+0CE0;KANNADA LETTER VOCALIC RR;Lo;0;L;;;;;N;;;;;
+0CE1;KANNADA LETTER VOCALIC LL;Lo;0;L;;;;;N;;;;;
+0CE2;KANNADA VOWEL SIGN VOCALIC L;Mn;0;NSM;;;;;N;;;;;
+0CE3;KANNADA VOWEL SIGN VOCALIC LL;Mn;0;NSM;;;;;N;;;;;
+0CE6;KANNADA DIGIT ZERO;Nd;0;L;;0;0;0;N;;;;;
+0CE7;KANNADA DIGIT ONE;Nd;0;L;;1;1;1;N;;;;;
+0CE8;KANNADA DIGIT TWO;Nd;0;L;;2;2;2;N;;;;;
+0CE9;KANNADA DIGIT THREE;Nd;0;L;;3;3;3;N;;;;;
+0CEA;KANNADA DIGIT FOUR;Nd;0;L;;4;4;4;N;;;;;
+0CEB;KANNADA DIGIT FIVE;Nd;0;L;;5;5;5;N;;;;;
+0CEC;KANNADA DIGIT SIX;Nd;0;L;;6;6;6;N;;;;;
+0CED;KANNADA DIGIT SEVEN;Nd;0;L;;7;7;7;N;;;;;
+0CEE;KANNADA DIGIT EIGHT;Nd;0;L;;8;8;8;N;;;;;
+0CEF;KANNADA DIGIT NINE;Nd;0;L;;9;9;9;N;;;;;
+0CF1;KANNADA SIGN JIHVAMULIYA;Lo;0;L;;;;;N;;;;;
+0CF2;KANNADA SIGN UPADHMANIYA;Lo;0;L;;;;;N;;;;;
+0D02;MALAYALAM SIGN ANUSVARA;Mc;0;L;;;;;N;;;;;
+0D03;MALAYALAM SIGN VISARGA;Mc;0;L;;;;;N;;;;;
+0D05;MALAYALAM LETTER A;Lo;0;L;;;;;N;;;;;
+0D06;MALAYALAM LETTER AA;Lo;0;L;;;;;N;;;;;
+0D07;MALAYALAM LETTER I;Lo;0;L;;;;;N;;;;;
+0D08;MALAYALAM LETTER II;Lo;0;L;;;;;N;;;;;
+0D09;MALAYALAM LETTER U;Lo;0;L;;;;;N;;;;;
+0D0A;MALAYALAM LETTER UU;Lo;0;L;;;;;N;;;;;
+0D0B;MALAYALAM LETTER VOCALIC R;Lo;0;L;;;;;N;;;;;
+0D0C;MALAYALAM LETTER VOCALIC L;Lo;0;L;;;;;N;;;;;
+0D0E;MALAYALAM LETTER E;Lo;0;L;;;;;N;;;;;
+0D0F;MALAYALAM LETTER EE;Lo;0;L;;;;;N;;;;;
+0D10;MALAYALAM LETTER AI;Lo;0;L;;;;;N;;;;;
+0D12;MALAYALAM LETTER O;Lo;0;L;;;;;N;;;;;
+0D13;MALAYALAM LETTER OO;Lo;0;L;;;;;N;;;;;
+0D14;MALAYALAM LETTER AU;Lo;0;L;;;;;N;;;;;
+0D15;MALAYALAM LETTER KA;Lo;0;L;;;;;N;;;;;
+0D16;MALAYALAM LETTER KHA;Lo;0;L;;;;;N;;;;;
+0D17;MALAYALAM LETTER GA;Lo;0;L;;;;;N;;;;;
+0D18;MALAYALAM LETTER GHA;Lo;0;L;;;;;N;;;;;
+0D19;MALAYALAM LETTER NGA;Lo;0;L;;;;;N;;;;;
+0D1A;MALAYALAM LETTER CA;Lo;0;L;;;;;N;;;;;
+0D1B;MALAYALAM LETTER CHA;Lo;0;L;;;;;N;;;;;
+0D1C;MALAYALAM LETTER JA;Lo;0;L;;;;;N;;;;;
+0D1D;MALAYALAM LETTER JHA;Lo;0;L;;;;;N;;;;;
+0D1E;MALAYALAM LETTER NYA;Lo;0;L;;;;;N;;;;;
+0D1F;MALAYALAM LETTER TTA;Lo;0;L;;;;;N;;;;;
+0D20;MALAYALAM LETTER TTHA;Lo;0;L;;;;;N;;;;;
+0D21;MALAYALAM LETTER DDA;Lo;0;L;;;;;N;;;;;
+0D22;MALAYALAM LETTER DDHA;Lo;0;L;;;;;N;;;;;
+0D23;MALAYALAM LETTER NNA;Lo;0;L;;;;;N;;;;;
+0D24;MALAYALAM LETTER TA;Lo;0;L;;;;;N;;;;;
+0D25;MALAYALAM LETTER THA;Lo;0;L;;;;;N;;;;;
+0D26;MALAYALAM LETTER DA;Lo;0;L;;;;;N;;;;;
+0D27;MALAYALAM LETTER DHA;Lo;0;L;;;;;N;;;;;
+0D28;MALAYALAM LETTER NA;Lo;0;L;;;;;N;;;;;
+0D29;MALAYALAM LETTER NNNA;Lo;0;L;;;;;N;;;;;
+0D2A;MALAYALAM LETTER PA;Lo;0;L;;;;;N;;;;;
+0D2B;MALAYALAM LETTER PHA;Lo;0;L;;;;;N;;;;;
+0D2C;MALAYALAM LETTER BA;Lo;0;L;;;;;N;;;;;
+0D2D;MALAYALAM LETTER BHA;Lo;0;L;;;;;N;;;;;
+0D2E;MALAYALAM LETTER MA;Lo;0;L;;;;;N;;;;;
+0D2F;MALAYALAM LETTER YA;Lo;0;L;;;;;N;;;;;
+0D30;MALAYALAM LETTER RA;Lo;0;L;;;;;N;;;;;
+0D31;MALAYALAM LETTER RRA;Lo;0;L;;;;;N;;;;;
+0D32;MALAYALAM LETTER LA;Lo;0;L;;;;;N;;;;;
+0D33;MALAYALAM LETTER LLA;Lo;0;L;;;;;N;;;;;
+0D34;MALAYALAM LETTER LLLA;Lo;0;L;;;;;N;;;;;
+0D35;MALAYALAM LETTER VA;Lo;0;L;;;;;N;;;;;
+0D36;MALAYALAM LETTER SHA;Lo;0;L;;;;;N;;;;;
+0D37;MALAYALAM LETTER SSA;Lo;0;L;;;;;N;;;;;
+0D38;MALAYALAM LETTER SA;Lo;0;L;;;;;N;;;;;
+0D39;MALAYALAM LETTER HA;Lo;0;L;;;;;N;;;;;
+0D3A;MALAYALAM LETTER TTTA;Lo;0;L;;;;;N;;;;;
+0D3D;MALAYALAM SIGN AVAGRAHA;Lo;0;L;;;;;N;;;;;
+0D3E;MALAYALAM VOWEL SIGN AA;Mc;0;L;;;;;N;;;;;
+0D3F;MALAYALAM VOWEL SIGN I;Mc;0;L;;;;;N;;;;;
+0D40;MALAYALAM VOWEL SIGN II;Mc;0;L;;;;;N;;;;;
+0D41;MALAYALAM VOWEL SIGN U;Mn;0;NSM;;;;;N;;;;;
+0D42;MALAYALAM VOWEL SIGN UU;Mn;0;NSM;;;;;N;;;;;
+0D43;MALAYALAM VOWEL SIGN VOCALIC R;Mn;0;NSM;;;;;N;;;;;
+0D44;MALAYALAM VOWEL SIGN VOCALIC RR;Mn;0;NSM;;;;;N;;;;;
+0D46;MALAYALAM VOWEL SIGN E;Mc;0;L;;;;;N;;;;;
+0D47;MALAYALAM VOWEL SIGN EE;Mc;0;L;;;;;N;;;;;
+0D48;MALAYALAM VOWEL SIGN AI;Mc;0;L;;;;;N;;;;;
+0D4A;MALAYALAM VOWEL SIGN O;Mc;0;L;0D46 0D3E;;;;N;;;;;
+0D4B;MALAYALAM VOWEL SIGN OO;Mc;0;L;0D47 0D3E;;;;N;;;;;
+0D4C;MALAYALAM VOWEL SIGN AU;Mc;0;L;0D46 0D57;;;;N;;;;;
+0D4D;MALAYALAM SIGN VIRAMA;Mn;9;NSM;;;;;N;;;;;
+0D4E;MALAYALAM LETTER DOT REPH;Lo;0;L;;;;;N;;;;;
+0D57;MALAYALAM AU LENGTH MARK;Mc;0;L;;;;;N;;;;;
+0D60;MALAYALAM LETTER VOCALIC RR;Lo;0;L;;;;;N;;;;;
+0D61;MALAYALAM LETTER VOCALIC LL;Lo;0;L;;;;;N;;;;;
+0D62;MALAYALAM VOWEL SIGN VOCALIC L;Mn;0;NSM;;;;;N;;;;;
+0D63;MALAYALAM VOWEL SIGN VOCALIC LL;Mn;0;NSM;;;;;N;;;;;
+0D66;MALAYALAM DIGIT ZERO;Nd;0;L;;0;0;0;N;;;;;
+0D67;MALAYALAM DIGIT ONE;Nd;0;L;;1;1;1;N;;;;;
+0D68;MALAYALAM DIGIT TWO;Nd;0;L;;2;2;2;N;;;;;
+0D69;MALAYALAM DIGIT THREE;Nd;0;L;;3;3;3;N;;;;;
+0D6A;MALAYALAM DIGIT FOUR;Nd;0;L;;4;4;4;N;;;;;
+0D6B;MALAYALAM DIGIT FIVE;Nd;0;L;;5;5;5;N;;;;;
+0D6C;MALAYALAM DIGIT SIX;Nd;0;L;;6;6;6;N;;;;;
+0D6D;MALAYALAM DIGIT SEVEN;Nd;0;L;;7;7;7;N;;;;;
+0D6E;MALAYALAM DIGIT EIGHT;Nd;0;L;;8;8;8;N;;;;;
+0D6F;MALAYALAM DIGIT NINE;Nd;0;L;;9;9;9;N;;;;;
+0D70;MALAYALAM NUMBER TEN;No;0;L;;;;10;N;;;;;
+0D71;MALAYALAM NUMBER ONE HUNDRED;No;0;L;;;;100;N;;;;;
+0D72;MALAYALAM NUMBER ONE THOUSAND;No;0;L;;;;1000;N;;;;;
+0D73;MALAYALAM FRACTION ONE QUARTER;No;0;L;;;;1/4;N;;;;;
+0D74;MALAYALAM FRACTION ONE HALF;No;0;L;;;;1/2;N;;;;;
+0D75;MALAYALAM FRACTION THREE QUARTERS;No;0;L;;;;3/4;N;;;;;
+0D79;MALAYALAM DATE MARK;So;0;L;;;;;N;;;;;
+0D7A;MALAYALAM LETTER CHILLU NN;Lo;0;L;;;;;N;;;;;
+0D7B;MALAYALAM LETTER CHILLU N;Lo;0;L;;;;;N;;;;;
+0D7C;MALAYALAM LETTER CHILLU RR;Lo;0;L;;;;;N;;;;;
+0D7D;MALAYALAM LETTER CHILLU L;Lo;0;L;;;;;N;;;;;
+0D7E;MALAYALAM LETTER CHILLU LL;Lo;0;L;;;;;N;;;;;
+0D7F;MALAYALAM LETTER CHILLU K;Lo;0;L;;;;;N;;;;;
+0D82;SINHALA SIGN ANUSVARAYA;Mc;0;L;;;;;N;;;;;
+0D83;SINHALA SIGN VISARGAYA;Mc;0;L;;;;;N;;;;;
+0D85;SINHALA LETTER AYANNA;Lo;0;L;;;;;N;;;;;
+0D86;SINHALA LETTER AAYANNA;Lo;0;L;;;;;N;;;;;
+0D87;SINHALA LETTER AEYANNA;Lo;0;L;;;;;N;;;;;
+0D88;SINHALA LETTER AEEYANNA;Lo;0;L;;;;;N;;;;;
+0D89;SINHALA LETTER IYANNA;Lo;0;L;;;;;N;;;;;
+0D8A;SINHALA LETTER IIYANNA;Lo;0;L;;;;;N;;;;;
+0D8B;SINHALA LETTER UYANNA;Lo;0;L;;;;;N;;;;;
+0D8C;SINHALA LETTER UUYANNA;Lo;0;L;;;;;N;;;;;
+0D8D;SINHALA LETTER IRUYANNA;Lo;0;L;;;;;N;;;;;
+0D8E;SINHALA LETTER IRUUYANNA;Lo;0;L;;;;;N;;;;;
+0D8F;SINHALA LETTER ILUYANNA;Lo;0;L;;;;;N;;;;;
+0D90;SINHALA LETTER ILUUYANNA;Lo;0;L;;;;;N;;;;;
+0D91;SINHALA LETTER EYANNA;Lo;0;L;;;;;N;;;;;
+0D92;SINHALA LETTER EEYANNA;Lo;0;L;;;;;N;;;;;
+0D93;SINHALA LETTER AIYANNA;Lo;0;L;;;;;N;;;;;
+0D94;SINHALA LETTER OYANNA;Lo;0;L;;;;;N;;;;;
+0D95;SINHALA LETTER OOYANNA;Lo;0;L;;;;;N;;;;;
+0D96;SINHALA LETTER AUYANNA;Lo;0;L;;;;;N;;;;;
+0D9A;SINHALA LETTER ALPAPRAANA KAYANNA;Lo;0;L;;;;;N;;;;;
+0D9B;SINHALA LETTER MAHAAPRAANA KAYANNA;Lo;0;L;;;;;N;;;;;
+0D9C;SINHALA LETTER ALPAPRAANA GAYANNA;Lo;0;L;;;;;N;;;;;
+0D9D;SINHALA LETTER MAHAAPRAANA GAYANNA;Lo;0;L;;;;;N;;;;;
+0D9E;SINHALA LETTER KANTAJA NAASIKYAYA;Lo;0;L;;;;;N;;;;;
+0D9F;SINHALA LETTER SANYAKA GAYANNA;Lo;0;L;;;;;N;;;;;
+0DA0;SINHALA LETTER ALPAPRAANA CAYANNA;Lo;0;L;;;;;N;;;;;
+0DA1;SINHALA LETTER MAHAAPRAANA CAYANNA;Lo;0;L;;;;;N;;;;;
+0DA2;SINHALA LETTER ALPAPRAANA JAYANNA;Lo;0;L;;;;;N;;;;;
+0DA3;SINHALA LETTER MAHAAPRAANA JAYANNA;Lo;0;L;;;;;N;;;;;
+0DA4;SINHALA LETTER TAALUJA NAASIKYAYA;Lo;0;L;;;;;N;;;;;
+0DA5;SINHALA LETTER TAALUJA SANYOOGA NAAKSIKYAYA;Lo;0;L;;;;;N;;;;;
+0DA6;SINHALA LETTER SANYAKA JAYANNA;Lo;0;L;;;;;N;;;;;
+0DA7;SINHALA LETTER ALPAPRAANA TTAYANNA;Lo;0;L;;;;;N;;;;;
+0DA8;SINHALA LETTER MAHAAPRAANA TTAYANNA;Lo;0;L;;;;;N;;;;;
+0DA9;SINHALA LETTER ALPAPRAANA DDAYANNA;Lo;0;L;;;;;N;;;;;
+0DAA;SINHALA LETTER MAHAAPRAANA DDAYANNA;Lo;0;L;;;;;N;;;;;
+0DAB;SINHALA LETTER MUURDHAJA NAYANNA;Lo;0;L;;;;;N;;;;;
+0DAC;SINHALA LETTER SANYAKA DDAYANNA;Lo;0;L;;;;;N;;;;;
+0DAD;SINHALA LETTER ALPAPRAANA TAYANNA;Lo;0;L;;;;;N;;;;;
+0DAE;SINHALA LETTER MAHAAPRAANA TAYANNA;Lo;0;L;;;;;N;;;;;
+0DAF;SINHALA LETTER ALPAPRAANA DAYANNA;Lo;0;L;;;;;N;;;;;
+0DB0;SINHALA LETTER MAHAAPRAANA DAYANNA;Lo;0;L;;;;;N;;;;;
+0DB1;SINHALA LETTER DANTAJA NAYANNA;Lo;0;L;;;;;N;;;;;
+0DB3;SINHALA LETTER SANYAKA DAYANNA;Lo;0;L;;;;;N;;;;;
+0DB4;SINHALA LETTER ALPAPRAANA PAYANNA;Lo;0;L;;;;;N;;;;;
+0DB5;SINHALA LETTER MAHAAPRAANA PAYANNA;Lo;0;L;;;;;N;;;;;
+0DB6;SINHALA LETTER ALPAPRAANA BAYANNA;Lo;0;L;;;;;N;;;;;
+0DB7;SINHALA LETTER MAHAAPRAANA BAYANNA;Lo;0;L;;;;;N;;;;;
+0DB8;SINHALA LETTER MAYANNA;Lo;0;L;;;;;N;;;;;
+0DB9;SINHALA LETTER AMBA BAYANNA;Lo;0;L;;;;;N;;;;;
+0DBA;SINHALA LETTER YAYANNA;Lo;0;L;;;;;N;;;;;
+0DBB;SINHALA LETTER RAYANNA;Lo;0;L;;;;;N;;;;;
+0DBD;SINHALA LETTER DANTAJA LAYANNA;Lo;0;L;;;;;N;;;;;
+0DC0;SINHALA LETTER VAYANNA;Lo;0;L;;;;;N;;;;;
+0DC1;SINHALA LETTER TAALUJA SAYANNA;Lo;0;L;;;;;N;;;;;
+0DC2;SINHALA LETTER MUURDHAJA SAYANNA;Lo;0;L;;;;;N;;;;;
+0DC3;SINHALA LETTER DANTAJA SAYANNA;Lo;0;L;;;;;N;;;;;
+0DC4;SINHALA LETTER HAYANNA;Lo;0;L;;;;;N;;;;;
+0DC5;SINHALA LETTER MUURDHAJA LAYANNA;Lo;0;L;;;;;N;;;;;
+0DC6;SINHALA LETTER FAYANNA;Lo;0;L;;;;;N;;;;;
+0DCA;SINHALA SIGN AL-LAKUNA;Mn;9;NSM;;;;;N;;;;;
+0DCF;SINHALA VOWEL SIGN AELA-PILLA;Mc;0;L;;;;;N;;;;;
+0DD0;SINHALA VOWEL SIGN KETTI AEDA-PILLA;Mc;0;L;;;;;N;;;;;
+0DD1;SINHALA VOWEL SIGN DIGA AEDA-PILLA;Mc;0;L;;;;;N;;;;;
+0DD2;SINHALA VOWEL SIGN KETTI IS-PILLA;Mn;0;NSM;;;;;N;;;;;
+0DD3;SINHALA VOWEL SIGN DIGA IS-PILLA;Mn;0;NSM;;;;;N;;;;;
+0DD4;SINHALA VOWEL SIGN KETTI PAA-PILLA;Mn;0;NSM;;;;;N;;;;;
+0DD6;SINHALA VOWEL SIGN DIGA PAA-PILLA;Mn;0;NSM;;;;;N;;;;;
+0DD8;SINHALA VOWEL SIGN GAETTA-PILLA;Mc;0;L;;;;;N;;;;;
+0DD9;SINHALA VOWEL SIGN KOMBUVA;Mc;0;L;;;;;N;;;;;
+0DDA;SINHALA VOWEL SIGN DIGA KOMBUVA;Mc;0;L;0DD9 0DCA;;;;N;;;;;
+0DDB;SINHALA VOWEL SIGN KOMBU DEKA;Mc;0;L;;;;;N;;;;;
+0DDC;SINHALA VOWEL SIGN KOMBUVA HAA AELA-PILLA;Mc;0;L;0DD9 0DCF;;;;N;;;;;
+0DDD;SINHALA VOWEL SIGN KOMBUVA HAA DIGA AELA-PILLA;Mc;0;L;0DDC 0DCA;;;;N;;;;;
+0DDE;SINHALA VOWEL SIGN KOMBUVA HAA GAYANUKITTA;Mc;0;L;0DD9 0DDF;;;;N;;;;;
+0DDF;SINHALA VOWEL SIGN GAYANUKITTA;Mc;0;L;;;;;N;;;;;
+0DF2;SINHALA VOWEL SIGN DIGA GAETTA-PILLA;Mc;0;L;;;;;N;;;;;
+0DF3;SINHALA VOWEL SIGN DIGA GAYANUKITTA;Mc;0;L;;;;;N;;;;;
+0DF4;SINHALA PUNCTUATION KUNDDALIYA;Po;0;L;;;;;N;;;;;
+0E01;THAI CHARACTER KO KAI;Lo;0;L;;;;;N;THAI LETTER KO KAI;;;;
+0E02;THAI CHARACTER KHO KHAI;Lo;0;L;;;;;N;THAI LETTER KHO KHAI;;;;
+0E03;THAI CHARACTER KHO KHUAT;Lo;0;L;;;;;N;THAI LETTER KHO KHUAT;;;;
+0E04;THAI CHARACTER KHO KHWAI;Lo;0;L;;;;;N;THAI LETTER KHO KHWAI;;;;
+0E05;THAI CHARACTER KHO KHON;Lo;0;L;;;;;N;THAI LETTER KHO KHON;;;;
+0E06;THAI CHARACTER KHO RAKHANG;Lo;0;L;;;;;N;THAI LETTER KHO RAKHANG;;;;
+0E07;THAI CHARACTER NGO NGU;Lo;0;L;;;;;N;THAI LETTER NGO NGU;;;;
+0E08;THAI CHARACTER CHO CHAN;Lo;0;L;;;;;N;THAI LETTER CHO CHAN;;;;
+0E09;THAI CHARACTER CHO CHING;Lo;0;L;;;;;N;THAI LETTER CHO CHING;;;;
+0E0A;THAI CHARACTER CHO CHANG;Lo;0;L;;;;;N;THAI LETTER CHO CHANG;;;;
+0E0B;THAI CHARACTER SO SO;Lo;0;L;;;;;N;THAI LETTER SO SO;;;;
+0E0C;THAI CHARACTER CHO CHOE;Lo;0;L;;;;;N;THAI LETTER CHO CHOE;;;;
+0E0D;THAI CHARACTER YO YING;Lo;0;L;;;;;N;THAI LETTER YO YING;;;;
+0E0E;THAI CHARACTER DO CHADA;Lo;0;L;;;;;N;THAI LETTER DO CHADA;;;;
+0E0F;THAI CHARACTER TO PATAK;Lo;0;L;;;;;N;THAI LETTER TO PATAK;;;;
+0E10;THAI CHARACTER THO THAN;Lo;0;L;;;;;N;THAI LETTER THO THAN;;;;
+0E11;THAI CHARACTER THO NANGMONTHO;Lo;0;L;;;;;N;THAI LETTER THO NANGMONTHO;;;;
+0E12;THAI CHARACTER THO PHUTHAO;Lo;0;L;;;;;N;THAI LETTER THO PHUTHAO;;;;
+0E13;THAI CHARACTER NO NEN;Lo;0;L;;;;;N;THAI LETTER NO NEN;;;;
+0E14;THAI CHARACTER DO DEK;Lo;0;L;;;;;N;THAI LETTER DO DEK;;;;
+0E15;THAI CHARACTER TO TAO;Lo;0;L;;;;;N;THAI LETTER TO TAO;;;;
+0E16;THAI CHARACTER THO THUNG;Lo;0;L;;;;;N;THAI LETTER THO THUNG;;;;
+0E17;THAI CHARACTER THO THAHAN;Lo;0;L;;;;;N;THAI LETTER THO THAHAN;;;;
+0E18;THAI CHARACTER THO THONG;Lo;0;L;;;;;N;THAI LETTER THO THONG;;;;
+0E19;THAI CHARACTER NO NU;Lo;0;L;;;;;N;THAI LETTER NO NU;;;;
+0E1A;THAI CHARACTER BO BAIMAI;Lo;0;L;;;;;N;THAI LETTER BO BAIMAI;;;;
+0E1B;THAI CHARACTER PO PLA;Lo;0;L;;;;;N;THAI LETTER PO PLA;;;;
+0E1C;THAI CHARACTER PHO PHUNG;Lo;0;L;;;;;N;THAI LETTER PHO PHUNG;;;;
+0E1D;THAI CHARACTER FO FA;Lo;0;L;;;;;N;THAI LETTER FO FA;;;;
+0E1E;THAI CHARACTER PHO PHAN;Lo;0;L;;;;;N;THAI LETTER PHO PHAN;;;;
+0E1F;THAI CHARACTER FO FAN;Lo;0;L;;;;;N;THAI LETTER FO FAN;;;;
+0E20;THAI CHARACTER PHO SAMPHAO;Lo;0;L;;;;;N;THAI LETTER PHO SAMPHAO;;;;
+0E21;THAI CHARACTER MO MA;Lo;0;L;;;;;N;THAI LETTER MO MA;;;;
+0E22;THAI CHARACTER YO YAK;Lo;0;L;;;;;N;THAI LETTER YO YAK;;;;
+0E23;THAI CHARACTER RO RUA;Lo;0;L;;;;;N;THAI LETTER RO RUA;;;;
+0E24;THAI CHARACTER RU;Lo;0;L;;;;;N;THAI LETTER RU;;;;
+0E25;THAI CHARACTER LO LING;Lo;0;L;;;;;N;THAI LETTER LO LING;;;;
+0E26;THAI CHARACTER LU;Lo;0;L;;;;;N;THAI LETTER LU;;;;
+0E27;THAI CHARACTER WO WAEN;Lo;0;L;;;;;N;THAI LETTER WO WAEN;;;;
+0E28;THAI CHARACTER SO SALA;Lo;0;L;;;;;N;THAI LETTER SO SALA;;;;
+0E29;THAI CHARACTER SO RUSI;Lo;0;L;;;;;N;THAI LETTER SO RUSI;;;;
+0E2A;THAI CHARACTER SO SUA;Lo;0;L;;;;;N;THAI LETTER SO SUA;;;;
+0E2B;THAI CHARACTER HO HIP;Lo;0;L;;;;;N;THAI LETTER HO HIP;;;;
+0E2C;THAI CHARACTER LO CHULA;Lo;0;L;;;;;N;THAI LETTER LO CHULA;;;;
+0E2D;THAI CHARACTER O ANG;Lo;0;L;;;;;N;THAI LETTER O ANG;;;;
+0E2E;THAI CHARACTER HO NOKHUK;Lo;0;L;;;;;N;THAI LETTER HO NOK HUK;;;;
+0E2F;THAI CHARACTER PAIYANNOI;Lo;0;L;;;;;N;THAI PAI YAN NOI;;;;
+0E30;THAI CHARACTER SARA A;Lo;0;L;;;;;N;THAI VOWEL SIGN SARA A;;;;
+0E31;THAI CHARACTER MAI HAN-AKAT;Mn;0;NSM;;;;;N;THAI VOWEL SIGN MAI HAN-AKAT;;;;
+0E32;THAI CHARACTER SARA AA;Lo;0;L;;;;;N;THAI VOWEL SIGN SARA AA;;;;
+0E33;THAI CHARACTER SARA AM;Lo;0;L;<compat> 0E4D 0E32;;;;N;THAI VOWEL SIGN SARA AM;;;;
+0E34;THAI CHARACTER SARA I;Mn;0;NSM;;;;;N;THAI VOWEL SIGN SARA I;;;;
+0E35;THAI CHARACTER SARA II;Mn;0;NSM;;;;;N;THAI VOWEL SIGN SARA II;;;;
+0E36;THAI CHARACTER SARA UE;Mn;0;NSM;;;;;N;THAI VOWEL SIGN SARA UE;;;;
+0E37;THAI CHARACTER SARA UEE;Mn;0;NSM;;;;;N;THAI VOWEL SIGN SARA UEE;;;;
+0E38;THAI CHARACTER SARA U;Mn;103;NSM;;;;;N;THAI VOWEL SIGN SARA U;;;;
+0E39;THAI CHARACTER SARA UU;Mn;103;NSM;;;;;N;THAI VOWEL SIGN SARA UU;;;;
+0E3A;THAI CHARACTER PHINTHU;Mn;9;NSM;;;;;N;THAI VOWEL SIGN PHINTHU;;;;
+0E3F;THAI CURRENCY SYMBOL BAHT;Sc;0;ET;;;;;N;THAI BAHT SIGN;;;;
+0E40;THAI CHARACTER SARA E;Lo;0;L;;;;;N;THAI VOWEL SIGN SARA E;;;;
+0E41;THAI CHARACTER SARA AE;Lo;0;L;;;;;N;THAI VOWEL SIGN SARA AE;;;;
+0E42;THAI CHARACTER SARA O;Lo;0;L;;;;;N;THAI VOWEL SIGN SARA O;;;;
+0E43;THAI CHARACTER SARA AI MAIMUAN;Lo;0;L;;;;;N;THAI VOWEL SIGN SARA MAI MUAN;;;;
+0E44;THAI CHARACTER SARA AI MAIMALAI;Lo;0;L;;;;;N;THAI VOWEL SIGN SARA MAI MALAI;;;;
+0E45;THAI CHARACTER LAKKHANGYAO;Lo;0;L;;;;;N;THAI LAK KHANG YAO;;;;
+0E46;THAI CHARACTER MAIYAMOK;Lm;0;L;;;;;N;THAI MAI YAMOK;;;;
+0E47;THAI CHARACTER MAITAIKHU;Mn;0;NSM;;;;;N;THAI VOWEL SIGN MAI TAI KHU;;;;
+0E48;THAI CHARACTER MAI EK;Mn;107;NSM;;;;;N;THAI TONE MAI EK;;;;
+0E49;THAI CHARACTER MAI THO;Mn;107;NSM;;;;;N;THAI TONE MAI THO;;;;
+0E4A;THAI CHARACTER MAI TRI;Mn;107;NSM;;;;;N;THAI TONE MAI TRI;;;;
+0E4B;THAI CHARACTER MAI CHATTAWA;Mn;107;NSM;;;;;N;THAI TONE MAI CHATTAWA;;;;
+0E4C;THAI CHARACTER THANTHAKHAT;Mn;0;NSM;;;;;N;THAI THANTHAKHAT;;;;
+0E4D;THAI CHARACTER NIKHAHIT;Mn;0;NSM;;;;;N;THAI NIKKHAHIT;;;;
+0E4E;THAI CHARACTER YAMAKKAN;Mn;0;NSM;;;;;N;THAI YAMAKKAN;;;;
+0E4F;THAI CHARACTER FONGMAN;Po;0;L;;;;;N;THAI FONGMAN;;;;
+0E50;THAI DIGIT ZERO;Nd;0;L;;0;0;0;N;;;;;
+0E51;THAI DIGIT ONE;Nd;0;L;;1;1;1;N;;;;;
+0E52;THAI DIGIT TWO;Nd;0;L;;2;2;2;N;;;;;
+0E53;THAI DIGIT THREE;Nd;0;L;;3;3;3;N;;;;;
+0E54;THAI DIGIT FOUR;Nd;0;L;;4;4;4;N;;;;;
+0E55;THAI DIGIT FIVE;Nd;0;L;;5;5;5;N;;;;;
+0E56;THAI DIGIT SIX;Nd;0;L;;6;6;6;N;;;;;
+0E57;THAI DIGIT SEVEN;Nd;0;L;;7;7;7;N;;;;;
+0E58;THAI DIGIT EIGHT;Nd;0;L;;8;8;8;N;;;;;
+0E59;THAI DIGIT NINE;Nd;0;L;;9;9;9;N;;;;;
+0E5A;THAI CHARACTER ANGKHANKHU;Po;0;L;;;;;N;THAI ANGKHANKHU;;;;
+0E5B;THAI CHARACTER KHOMUT;Po;0;L;;;;;N;THAI KHOMUT;;;;
+0E81;LAO LETTER KO;Lo;0;L;;;;;N;;;;;
+0E82;LAO LETTER KHO SUNG;Lo;0;L;;;;;N;;;;;
+0E84;LAO LETTER KHO TAM;Lo;0;L;;;;;N;;;;;
+0E87;LAO LETTER NGO;Lo;0;L;;;;;N;;;;;
+0E88;LAO LETTER CO;Lo;0;L;;;;;N;;;;;
+0E8A;LAO LETTER SO TAM;Lo;0;L;;;;;N;;;;;
+0E8D;LAO LETTER NYO;Lo;0;L;;;;;N;;;;;
+0E94;LAO LETTER DO;Lo;0;L;;;;;N;;;;;
+0E95;LAO LETTER TO;Lo;0;L;;;;;N;;;;;
+0E96;LAO LETTER THO SUNG;Lo;0;L;;;;;N;;;;;
+0E97;LAO LETTER THO TAM;Lo;0;L;;;;;N;;;;;
+0E99;LAO LETTER NO;Lo;0;L;;;;;N;;;;;
+0E9A;LAO LETTER BO;Lo;0;L;;;;;N;;;;;
+0E9B;LAO LETTER PO;Lo;0;L;;;;;N;;;;;
+0E9C;LAO LETTER PHO SUNG;Lo;0;L;;;;;N;;;;;
+0E9D;LAO LETTER FO TAM;Lo;0;L;;;;;N;;;;;
+0E9E;LAO LETTER PHO TAM;Lo;0;L;;;;;N;;;;;
+0E9F;LAO LETTER FO SUNG;Lo;0;L;;;;;N;;;;;
+0EA1;LAO LETTER MO;Lo;0;L;;;;;N;;;;;
+0EA2;LAO LETTER YO;Lo;0;L;;;;;N;;;;;
+0EA3;LAO LETTER LO LING;Lo;0;L;;;;;N;;;;;
+0EA5;LAO LETTER LO LOOT;Lo;0;L;;;;;N;;;;;
+0EA7;LAO LETTER WO;Lo;0;L;;;;;N;;;;;
+0EAA;LAO LETTER SO SUNG;Lo;0;L;;;;;N;;;;;
+0EAB;LAO LETTER HO SUNG;Lo;0;L;;;;;N;;;;;
+0EAD;LAO LETTER O;Lo;0;L;;;;;N;;;;;
+0EAE;LAO LETTER HO TAM;Lo;0;L;;;;;N;;;;;
+0EAF;LAO ELLIPSIS;Lo;0;L;;;;;N;;;;;
+0EB0;LAO VOWEL SIGN A;Lo;0;L;;;;;N;;;;;
+0EB1;LAO VOWEL SIGN MAI KAN;Mn;0;NSM;;;;;N;;;;;
+0EB2;LAO VOWEL SIGN AA;Lo;0;L;;;;;N;;;;;
+0EB3;LAO VOWEL SIGN AM;Lo;0;L;<compat> 0ECD 0EB2;;;;N;;;;;
+0EB4;LAO VOWEL SIGN I;Mn;0;NSM;;;;;N;;;;;
+0EB5;LAO VOWEL SIGN II;Mn;0;NSM;;;;;N;;;;;
+0EB6;LAO VOWEL SIGN Y;Mn;0;NSM;;;;;N;;;;;
+0EB7;LAO VOWEL SIGN YY;Mn;0;NSM;;;;;N;;;;;
+0EB8;LAO VOWEL SIGN U;Mn;118;NSM;;;;;N;;;;;
+0EB9;LAO VOWEL SIGN UU;Mn;118;NSM;;;;;N;;;;;
+0EBB;LAO VOWEL SIGN MAI KON;Mn;0;NSM;;;;;N;;;;;
+0EBC;LAO SEMIVOWEL SIGN LO;Mn;0;NSM;;;;;N;;;;;
+0EBD;LAO SEMIVOWEL SIGN NYO;Lo;0;L;;;;;N;;;;;
+0EC0;LAO VOWEL SIGN E;Lo;0;L;;;;;N;;;;;
+0EC1;LAO VOWEL SIGN EI;Lo;0;L;;;;;N;;;;;
+0EC2;LAO VOWEL SIGN O;Lo;0;L;;;;;N;;;;;
+0EC3;LAO VOWEL SIGN AY;Lo;0;L;;;;;N;;;;;
+0EC4;LAO VOWEL SIGN AI;Lo;0;L;;;;;N;;;;;
+0EC6;LAO KO LA;Lm;0;L;;;;;N;;;;;
+0EC8;LAO TONE MAI EK;Mn;122;NSM;;;;;N;;;;;
+0EC9;LAO TONE MAI THO;Mn;122;NSM;;;;;N;;;;;
+0ECA;LAO TONE MAI TI;Mn;122;NSM;;;;;N;;;;;
+0ECB;LAO TONE MAI CATAWA;Mn;122;NSM;;;;;N;;;;;
+0ECC;LAO CANCELLATION MARK;Mn;0;NSM;;;;;N;;;;;
+0ECD;LAO NIGGAHITA;Mn;0;NSM;;;;;N;;;;;
+0ED0;LAO DIGIT ZERO;Nd;0;L;;0;0;0;N;;;;;
+0ED1;LAO DIGIT ONE;Nd;0;L;;1;1;1;N;;;;;
+0ED2;LAO DIGIT TWO;Nd;0;L;;2;2;2;N;;;;;
+0ED3;LAO DIGIT THREE;Nd;0;L;;3;3;3;N;;;;;
+0ED4;LAO DIGIT FOUR;Nd;0;L;;4;4;4;N;;;;;
+0ED5;LAO DIGIT FIVE;Nd;0;L;;5;5;5;N;;;;;
+0ED6;LAO DIGIT SIX;Nd;0;L;;6;6;6;N;;;;;
+0ED7;LAO DIGIT SEVEN;Nd;0;L;;7;7;7;N;;;;;
+0ED8;LAO DIGIT EIGHT;Nd;0;L;;8;8;8;N;;;;;
+0ED9;LAO DIGIT NINE;Nd;0;L;;9;9;9;N;;;;;
+0EDC;LAO HO NO;Lo;0;L;<compat> 0EAB 0E99;;;;N;;;;;
+0EDD;LAO HO MO;Lo;0;L;<compat> 0EAB 0EA1;;;;N;;;;;
+0EDE;LAO LETTER KHMU GO;Lo;0;L;;;;;N;;;;;
+0EDF;LAO LETTER KHMU NYO;Lo;0;L;;;;;N;;;;;
+0F00;TIBETAN SYLLABLE OM;Lo;0;L;;;;;N;;;;;
+0F01;TIBETAN MARK GTER YIG MGO TRUNCATED A;So;0;L;;;;;N;;;;;
+0F02;TIBETAN MARK GTER YIG MGO -UM RNAM BCAD MA;So;0;L;;;;;N;;;;;
+0F03;TIBETAN MARK GTER YIG MGO -UM GTER TSHEG MA;So;0;L;;;;;N;;;;;
+0F04;TIBETAN MARK INITIAL YIG MGO MDUN MA;Po;0;L;;;;;N;TIBETAN SINGLE ORNAMENT;;;;
+0F05;TIBETAN MARK CLOSING YIG MGO SGAB MA;Po;0;L;;;;;N;;;;;
+0F06;TIBETAN MARK CARET YIG MGO PHUR SHAD MA;Po;0;L;;;;;N;;;;;
+0F07;TIBETAN MARK YIG MGO TSHEG SHAD MA;Po;0;L;;;;;N;;;;;
+0F08;TIBETAN MARK SBRUL SHAD;Po;0;L;;;;;N;TIBETAN RGYANSHAD;;;;
+0F09;TIBETAN MARK BSKUR YIG MGO;Po;0;L;;;;;N;;;;;
+0F0A;TIBETAN MARK BKA- SHOG YIG MGO;Po;0;L;;;;;N;;;;;
+0F0B;TIBETAN MARK INTERSYLLABIC TSHEG;Po;0;L;;;;;N;TIBETAN TSEG;;;;
+0F0C;TIBETAN MARK DELIMITER TSHEG BSTAR;Po;0;L;<noBreak> 0F0B;;;;N;;;;;
+0F0D;TIBETAN MARK SHAD;Po;0;L;;;;;N;TIBETAN SHAD;;;;
+0F0E;TIBETAN MARK NYIS SHAD;Po;0;L;;;;;N;TIBETAN DOUBLE SHAD;;;;
+0F0F;TIBETAN MARK TSHEG SHAD;Po;0;L;;;;;N;;;;;
+0F10;TIBETAN MARK NYIS TSHEG SHAD;Po;0;L;;;;;N;;;;;
+0F11;TIBETAN MARK RIN CHEN SPUNGS SHAD;Po;0;L;;;;;N;TIBETAN RINCHANPHUNGSHAD;;;;
+0F12;TIBETAN MARK RGYA GRAM SHAD;Po;0;L;;;;;N;;;;;
+0F13;TIBETAN MARK CARET -DZUD RTAGS ME LONG CAN;So;0;L;;;;;N;;;;;
+0F14;TIBETAN MARK GTER TSHEG;Po;0;L;;;;;N;TIBETAN COMMA;;;;
+0F15;TIBETAN LOGOTYPE SIGN CHAD RTAGS;So;0;L;;;;;N;;;;;
+0F16;TIBETAN LOGOTYPE SIGN LHAG RTAGS;So;0;L;;;;;N;;;;;
+0F17;TIBETAN ASTROLOGICAL SIGN SGRA GCAN -CHAR RTAGS;So;0;L;;;;;N;;;;;
+0F18;TIBETAN ASTROLOGICAL SIGN -KHYUD PA;Mn;220;NSM;;;;;N;;;;;
+0F19;TIBETAN ASTROLOGICAL SIGN SDONG TSHUGS;Mn;220;NSM;;;;;N;;;;;
+0F1A;TIBETAN SIGN RDEL DKAR GCIG;So;0;L;;;;;N;;;;;
+0F1B;TIBETAN SIGN RDEL DKAR GNYIS;So;0;L;;;;;N;;;;;
+0F1C;TIBETAN SIGN RDEL DKAR GSUM;So;0;L;;;;;N;;;;;
+0F1D;TIBETAN SIGN RDEL NAG GCIG;So;0;L;;;;;N;;;;;
+0F1E;TIBETAN SIGN RDEL NAG GNYIS;So;0;L;;;;;N;;;;;
+0F1F;TIBETAN SIGN RDEL DKAR RDEL NAG;So;0;L;;;;;N;;;;;
+0F20;TIBETAN DIGIT ZERO;Nd;0;L;;0;0;0;N;;;;;
+0F21;TIBETAN DIGIT ONE;Nd;0;L;;1;1;1;N;;;;;
+0F22;TIBETAN DIGIT TWO;Nd;0;L;;2;2;2;N;;;;;
+0F23;TIBETAN DIGIT THREE;Nd;0;L;;3;3;3;N;;;;;
+0F24;TIBETAN DIGIT FOUR;Nd;0;L;;4;4;4;N;;;;;
+0F25;TIBETAN DIGIT FIVE;Nd;0;L;;5;5;5;N;;;;;
+0F26;TIBETAN DIGIT SIX;Nd;0;L;;6;6;6;N;;;;;
+0F27;TIBETAN DIGIT SEVEN;Nd;0;L;;7;7;7;N;;;;;
+0F28;TIBETAN DIGIT EIGHT;Nd;0;L;;8;8;8;N;;;;;
+0F29;TIBETAN DIGIT NINE;Nd;0;L;;9;9;9;N;;;;;
+0F2A;TIBETAN DIGIT HALF ONE;No;0;L;;;;1/2;N;;;;;
+0F2B;TIBETAN DIGIT HALF TWO;No;0;L;;;;3/2;N;;;;;
+0F2C;TIBETAN DIGIT HALF THREE;No;0;L;;;;5/2;N;;;;;
+0F2D;TIBETAN DIGIT HALF FOUR;No;0;L;;;;7/2;N;;;;;
+0F2E;TIBETAN DIGIT HALF FIVE;No;0;L;;;;9/2;N;;;;;
+0F2F;TIBETAN DIGIT HALF SIX;No;0;L;;;;11/2;N;;;;;
+0F30;TIBETAN DIGIT HALF SEVEN;No;0;L;;;;13/2;N;;;;;
+0F31;TIBETAN DIGIT HALF EIGHT;No;0;L;;;;15/2;N;;;;;
+0F32;TIBETAN DIGIT HALF NINE;No;0;L;;;;17/2;N;;;;;
+0F33;TIBETAN DIGIT HALF ZERO;No;0;L;;;;-1/2;N;;;;;
+0F34;TIBETAN MARK BSDUS RTAGS;So;0;L;;;;;N;;;;;
+0F35;TIBETAN MARK NGAS BZUNG NYI ZLA;Mn;220;NSM;;;;;N;TIBETAN HONORIFIC UNDER RING;;;;
+0F36;TIBETAN MARK CARET -DZUD RTAGS BZHI MIG CAN;So;0;L;;;;;N;;;;;
+0F37;TIBETAN MARK NGAS BZUNG SGOR RTAGS;Mn;220;NSM;;;;;N;TIBETAN UNDER RING;;;;
+0F38;TIBETAN MARK CHE MGO;So;0;L;;;;;N;;;;;
+0F39;TIBETAN MARK TSA -PHRU;Mn;216;NSM;;;;;N;TIBETAN LENITION MARK;;;;
+0F3A;TIBETAN MARK GUG RTAGS GYON;Ps;0;ON;;;;;Y;;;;;
+0F3B;TIBETAN MARK GUG RTAGS GYAS;Pe;0;ON;;;;;Y;;;;;
+0F3C;TIBETAN MARK ANG KHANG GYON;Ps;0;ON;;;;;Y;TIBETAN LEFT BRACE;;;;
+0F3D;TIBETAN MARK ANG KHANG GYAS;Pe;0;ON;;;;;Y;TIBETAN RIGHT BRACE;;;;
+0F3E;TIBETAN SIGN YAR TSHES;Mc;0;L;;;;;N;;;;;
+0F3F;TIBETAN SIGN MAR TSHES;Mc;0;L;;;;;N;;;;;
+0F40;TIBETAN LETTER KA;Lo;0;L;;;;;N;;;;;
+0F41;TIBETAN LETTER KHA;Lo;0;L;;;;;N;;;;;
+0F42;TIBETAN LETTER GA;Lo;0;L;;;;;N;;;;;
+0F43;TIBETAN LETTER GHA;Lo;0;L;0F42 0FB7;;;;N;;;;;
+0F44;TIBETAN LETTER NGA;Lo;0;L;;;;;N;;;;;
+0F45;TIBETAN LETTER CA;Lo;0;L;;;;;N;;;;;
+0F46;TIBETAN LETTER CHA;Lo;0;L;;;;;N;;;;;
+0F47;TIBETAN LETTER JA;Lo;0;L;;;;;N;;;;;
+0F49;TIBETAN LETTER NYA;Lo;0;L;;;;;N;;;;;
+0F4A;TIBETAN LETTER TTA;Lo;0;L;;;;;N;TIBETAN LETTER REVERSED TA;;;;
+0F4B;TIBETAN LETTER TTHA;Lo;0;L;;;;;N;TIBETAN LETTER REVERSED THA;;;;
+0F4C;TIBETAN LETTER DDA;Lo;0;L;;;;;N;TIBETAN LETTER REVERSED DA;;;;
+0F4D;TIBETAN LETTER DDHA;Lo;0;L;0F4C 0FB7;;;;N;;;;;
+0F4E;TIBETAN LETTER NNA;Lo;0;L;;;;;N;TIBETAN LETTER REVERSED NA;;;;
+0F4F;TIBETAN LETTER TA;Lo;0;L;;;;;N;;;;;
+0F50;TIBETAN LETTER THA;Lo;0;L;;;;;N;;;;;
+0F51;TIBETAN LETTER DA;Lo;0;L;;;;;N;;;;;
+0F52;TIBETAN LETTER DHA;Lo;0;L;0F51 0FB7;;;;N;;;;;
+0F53;TIBETAN LETTER NA;Lo;0;L;;;;;N;;;;;
+0F54;TIBETAN LETTER PA;Lo;0;L;;;;;N;;;;;
+0F55;TIBETAN LETTER PHA;Lo;0;L;;;;;N;;;;;
+0F56;TIBETAN LETTER BA;Lo;0;L;;;;;N;;;;;
+0F57;TIBETAN LETTER BHA;Lo;0;L;0F56 0FB7;;;;N;;;;;
+0F58;TIBETAN LETTER MA;Lo;0;L;;;;;N;;;;;
+0F59;TIBETAN LETTER TSA;Lo;0;L;;;;;N;;;;;
+0F5A;TIBETAN LETTER TSHA;Lo;0;L;;;;;N;;;;;
+0F5B;TIBETAN LETTER DZA;Lo;0;L;;;;;N;;;;;
+0F5C;TIBETAN LETTER DZHA;Lo;0;L;0F5B 0FB7;;;;N;;;;;
+0F5D;TIBETAN LETTER WA;Lo;0;L;;;;;N;;;;;
+0F5E;TIBETAN LETTER ZHA;Lo;0;L;;;;;N;;;;;
+0F5F;TIBETAN LETTER ZA;Lo;0;L;;;;;N;;;;;
+0F60;TIBETAN LETTER -A;Lo;0;L;;;;;N;TIBETAN LETTER AA;;;;
+0F61;TIBETAN LETTER YA;Lo;0;L;;;;;N;;;;;
+0F62;TIBETAN LETTER RA;Lo;0;L;;;;;N;;;;;
+0F63;TIBETAN LETTER LA;Lo;0;L;;;;;N;;;;;
+0F64;TIBETAN LETTER SHA;Lo;0;L;;;;;N;;;;;
+0F65;TIBETAN LETTER SSA;Lo;0;L;;;;;N;TIBETAN LETTER REVERSED SHA;;;;
+0F66;TIBETAN LETTER SA;Lo;0;L;;;;;N;;;;;
+0F67;TIBETAN LETTER HA;Lo;0;L;;;;;N;;;;;
+0F68;TIBETAN LETTER A;Lo;0;L;;;;;N;;;;;
+0F69;TIBETAN LETTER KSSA;Lo;0;L;0F40 0FB5;;;;N;;;;;
+0F6A;TIBETAN LETTER FIXED-FORM RA;Lo;0;L;;;;;N;;;;;
+0F6B;TIBETAN LETTER KKA;Lo;0;L;;;;;N;;;;;
+0F6C;TIBETAN LETTER RRA;Lo;0;L;;;;;N;;;;;
+0F71;TIBETAN VOWEL SIGN AA;Mn;129;NSM;;;;;N;;;;;
+0F72;TIBETAN VOWEL SIGN I;Mn;130;NSM;;;;;N;;;;;
+0F73;TIBETAN VOWEL SIGN II;Mn;0;NSM;0F71 0F72;;;;N;;;;;
+0F74;TIBETAN VOWEL SIGN U;Mn;132;NSM;;;;;N;;;;;
+0F75;TIBETAN VOWEL SIGN UU;Mn;0;NSM;0F71 0F74;;;;N;;;;;
+0F76;TIBETAN VOWEL SIGN VOCALIC R;Mn;0;NSM;0FB2 0F80;;;;N;;;;;
+0F77;TIBETAN VOWEL SIGN VOCALIC RR;Mn;0;NSM;<compat> 0FB2 0F81;;;;N;;;;;
+0F78;TIBETAN VOWEL SIGN VOCALIC L;Mn;0;NSM;0FB3 0F80;;;;N;;;;;
+0F79;TIBETAN VOWEL SIGN VOCALIC LL;Mn;0;NSM;<compat> 0FB3 0F81;;;;N;;;;;
+0F7A;TIBETAN VOWEL SIGN E;Mn;130;NSM;;;;;N;;;;;
+0F7B;TIBETAN VOWEL SIGN EE;Mn;130;NSM;;;;;N;TIBETAN VOWEL SIGN AI;;;;
+0F7C;TIBETAN VOWEL SIGN O;Mn;130;NSM;;;;;N;;;;;
+0F7D;TIBETAN VOWEL SIGN OO;Mn;130;NSM;;;;;N;TIBETAN VOWEL SIGN AU;;;;
+0F7E;TIBETAN SIGN RJES SU NGA RO;Mn;0;NSM;;;;;N;TIBETAN ANUSVARA;;;;
+0F7F;TIBETAN SIGN RNAM BCAD;Mc;0;L;;;;;N;TIBETAN VISARGA;;;;
+0F80;TIBETAN VOWEL SIGN REVERSED I;Mn;130;NSM;;;;;N;TIBETAN VOWEL SIGN SHORT I;;;;
+0F81;TIBETAN VOWEL SIGN REVERSED II;Mn;0;NSM;0F71 0F80;;;;N;;;;;
+0F82;TIBETAN SIGN NYI ZLA NAA DA;Mn;230;NSM;;;;;N;TIBETAN CANDRABINDU WITH ORNAMENT;;;;
+0F83;TIBETAN SIGN SNA LDAN;Mn;230;NSM;;;;;N;TIBETAN CANDRABINDU;;;;
+0F84;TIBETAN MARK HALANTA;Mn;9;NSM;;;;;N;TIBETAN VIRAMA;;;;
+0F85;TIBETAN MARK PALUTA;Po;0;L;;;;;N;TIBETAN CHUCHENYIGE;;;;
+0F86;TIBETAN SIGN LCI RTAGS;Mn;230;NSM;;;;;N;;;;;
+0F87;TIBETAN SIGN YANG RTAGS;Mn;230;NSM;;;;;N;;;;;
+0F88;TIBETAN SIGN LCE TSA CAN;Lo;0;L;;;;;N;;;;;
+0F89;TIBETAN SIGN MCHU CAN;Lo;0;L;;;;;N;;;;;
+0F8A;TIBETAN SIGN GRU CAN RGYINGS;Lo;0;L;;;;;N;;;;;
+0F8B;TIBETAN SIGN GRU MED RGYINGS;Lo;0;L;;;;;N;;;;;
+0F8C;TIBETAN SIGN INVERTED MCHU CAN;Lo;0;L;;;;;N;;;;;
+0F8D;TIBETAN SUBJOINED SIGN LCE TSA CAN;Mn;0;NSM;;;;;N;;;;;
+0F8E;TIBETAN SUBJOINED SIGN MCHU CAN;Mn;0;NSM;;;;;N;;;;;
+0F8F;TIBETAN SUBJOINED SIGN INVERTED MCHU CAN;Mn;0;NSM;;;;;N;;;;;
+0F90;TIBETAN SUBJOINED LETTER KA;Mn;0;NSM;;;;;N;;;;;
+0F91;TIBETAN SUBJOINED LETTER KHA;Mn;0;NSM;;;;;N;;;;;
+0F92;TIBETAN SUBJOINED LETTER GA;Mn;0;NSM;;;;;N;;;;;
+0F93;TIBETAN SUBJOINED LETTER GHA;Mn;0;NSM;0F92 0FB7;;;;N;;;;;
+0F94;TIBETAN SUBJOINED LETTER NGA;Mn;0;NSM;;;;;N;;;;;
+0F95;TIBETAN SUBJOINED LETTER CA;Mn;0;NSM;;;;;N;;;;;
+0F96;TIBETAN SUBJOINED LETTER CHA;Mn;0;NSM;;;;;N;;;;;
+0F97;TIBETAN SUBJOINED LETTER JA;Mn;0;NSM;;;;;N;;;;;
+0F99;TIBETAN SUBJOINED LETTER NYA;Mn;0;NSM;;;;;N;;;;;
+0F9A;TIBETAN SUBJOINED LETTER TTA;Mn;0;NSM;;;;;N;;;;;
+0F9B;TIBETAN SUBJOINED LETTER TTHA;Mn;0;NSM;;;;;N;;;;;
+0F9C;TIBETAN SUBJOINED LETTER DDA;Mn;0;NSM;;;;;N;;;;;
+0F9D;TIBETAN SUBJOINED LETTER DDHA;Mn;0;NSM;0F9C 0FB7;;;;N;;;;;
+0F9E;TIBETAN SUBJOINED LETTER NNA;Mn;0;NSM;;;;;N;;;;;
+0F9F;TIBETAN SUBJOINED LETTER TA;Mn;0;NSM;;;;;N;;;;;
+0FA0;TIBETAN SUBJOINED LETTER THA;Mn;0;NSM;;;;;N;;;;;
+0FA1;TIBETAN SUBJOINED LETTER DA;Mn;0;NSM;;;;;N;;;;;
+0FA2;TIBETAN SUBJOINED LETTER DHA;Mn;0;NSM;0FA1 0FB7;;;;N;;;;;
+0FA3;TIBETAN SUBJOINED LETTER NA;Mn;0;NSM;;;;;N;;;;;
+0FA4;TIBETAN SUBJOINED LETTER PA;Mn;0;NSM;;;;;N;;;;;
+0FA5;TIBETAN SUBJOINED LETTER PHA;Mn;0;NSM;;;;;N;;;;;
+0FA6;TIBETAN SUBJOINED LETTER BA;Mn;0;NSM;;;;;N;;;;;
+0FA7;TIBETAN SUBJOINED LETTER BHA;Mn;0;NSM;0FA6 0FB7;;;;N;;;;;
+0FA8;TIBETAN SUBJOINED LETTER MA;Mn;0;NSM;;;;;N;;;;;
+0FA9;TIBETAN SUBJOINED LETTER TSA;Mn;0;NSM;;;;;N;;;;;
+0FAA;TIBETAN SUBJOINED LETTER TSHA;Mn;0;NSM;;;;;N;;;;;
+0FAB;TIBETAN SUBJOINED LETTER DZA;Mn;0;NSM;;;;;N;;;;;
+0FAC;TIBETAN SUBJOINED LETTER DZHA;Mn;0;NSM;0FAB 0FB7;;;;N;;;;;
+0FAD;TIBETAN SUBJOINED LETTER WA;Mn;0;NSM;;;;;N;;;;;
+0FAE;TIBETAN SUBJOINED LETTER ZHA;Mn;0;NSM;;;;;N;;;;;
+0FAF;TIBETAN SUBJOINED LETTER ZA;Mn;0;NSM;;;;;N;;;;;
+0FB0;TIBETAN SUBJOINED LETTER -A;Mn;0;NSM;;;;;N;;;;;
+0FB1;TIBETAN SUBJOINED LETTER YA;Mn;0;NSM;;;;;N;;;;;
+0FB2;TIBETAN SUBJOINED LETTER RA;Mn;0;NSM;;;;;N;;;;;
+0FB3;TIBETAN SUBJOINED LETTER LA;Mn;0;NSM;;;;;N;;;;;
+0FB4;TIBETAN SUBJOINED LETTER SHA;Mn;0;NSM;;;;;N;;;;;
+0FB5;TIBETAN SUBJOINED LETTER SSA;Mn;0;NSM;;;;;N;;;;;
+0FB6;TIBETAN SUBJOINED LETTER SA;Mn;0;NSM;;;;;N;;;;;
+0FB7;TIBETAN SUBJOINED LETTER HA;Mn;0;NSM;;;;;N;;;;;
+0FB8;TIBETAN SUBJOINED LETTER A;Mn;0;NSM;;;;;N;;;;;
+0FB9;TIBETAN SUBJOINED LETTER KSSA;Mn;0;NSM;0F90 0FB5;;;;N;;;;;
+0FBA;TIBETAN SUBJOINED LETTER FIXED-FORM WA;Mn;0;NSM;;;;;N;;;;;
+0FBB;TIBETAN SUBJOINED LETTER FIXED-FORM YA;Mn;0;NSM;;;;;N;;;;;
+0FBC;TIBETAN SUBJOINED LETTER FIXED-FORM RA;Mn;0;NSM;;;;;N;;;;;
+0FBE;TIBETAN KU RU KHA;So;0;L;;;;;N;;;;;
+0FBF;TIBETAN KU RU KHA BZHI MIG CAN;So;0;L;;;;;N;;;;;
+0FC0;TIBETAN CANTILLATION SIGN HEAVY BEAT;So;0;L;;;;;N;;;;;
+0FC1;TIBETAN CANTILLATION SIGN LIGHT BEAT;So;0;L;;;;;N;;;;;
+0FC2;TIBETAN CANTILLATION SIGN CANG TE-U;So;0;L;;;;;N;;;;;
+0FC3;TIBETAN CANTILLATION SIGN SBUB -CHAL;So;0;L;;;;;N;;;;;
+0FC4;TIBETAN SYMBOL DRIL BU;So;0;L;;;;;N;;;;;
+0FC5;TIBETAN SYMBOL RDO RJE;So;0;L;;;;;N;;;;;
+0FC6;TIBETAN SYMBOL PADMA GDAN;Mn;220;NSM;;;;;N;;;;;
+0FC7;TIBETAN SYMBOL RDO RJE RGYA GRAM;So;0;L;;;;;N;;;;;
+0FC8;TIBETAN SYMBOL PHUR PA;So;0;L;;;;;N;;;;;
+0FC9;TIBETAN SYMBOL NOR BU;So;0;L;;;;;N;;;;;
+0FCA;TIBETAN SYMBOL NOR BU NYIS -KHYIL;So;0;L;;;;;N;;;;;
+0FCB;TIBETAN SYMBOL NOR BU GSUM -KHYIL;So;0;L;;;;;N;;;;;
+0FCC;TIBETAN SYMBOL NOR BU BZHI -KHYIL;So;0;L;;;;;N;;;;;
+0FCE;TIBETAN SIGN RDEL NAG RDEL DKAR;So;0;L;;;;;N;;;;;
+0FCF;TIBETAN SIGN RDEL NAG GSUM;So;0;L;;;;;N;;;;;
+0FD0;TIBETAN MARK BSKA- SHOG GI MGO RGYAN;Po;0;L;;;;;N;;;;;
+0FD1;TIBETAN MARK MNYAM YIG GI MGO RGYAN;Po;0;L;;;;;N;;;;;
+0FD2;TIBETAN MARK NYIS TSHEG;Po;0;L;;;;;N;;;;;
+0FD3;TIBETAN MARK INITIAL BRDA RNYING YIG MGO MDUN MA;Po;0;L;;;;;N;;;;;
+0FD4;TIBETAN MARK CLOSING BRDA RNYING YIG MGO SGAB MA;Po;0;L;;;;;N;;;;;
+0FD5;RIGHT-FACING SVASTI SIGN;So;0;L;;;;;N;;;;;
+0FD6;LEFT-FACING SVASTI SIGN;So;0;L;;;;;N;;;;;
+0FD7;RIGHT-FACING SVASTI SIGN WITH DOTS;So;0;L;;;;;N;;;;;
+0FD8;LEFT-FACING SVASTI SIGN WITH DOTS;So;0;L;;;;;N;;;;;
+0FD9;TIBETAN MARK LEADING MCHAN RTAGS;Po;0;L;;;;;N;;;;;
+0FDA;TIBETAN MARK TRAILING MCHAN RTAGS;Po;0;L;;;;;N;;;;;
+1000;MYANMAR LETTER KA;Lo;0;L;;;;;N;;;;;
+1001;MYANMAR LETTER KHA;Lo;0;L;;;;;N;;;;;
+1002;MYANMAR LETTER GA;Lo;0;L;;;;;N;;;;;
+1003;MYANMAR LETTER GHA;Lo;0;L;;;;;N;;;;;
+1004;MYANMAR LETTER NGA;Lo;0;L;;;;;N;;;;;
+1005;MYANMAR LETTER CA;Lo;0;L;;;;;N;;;;;
+1006;MYANMAR LETTER CHA;Lo;0;L;;;;;N;;;;;
+1007;MYANMAR LETTER JA;Lo;0;L;;;;;N;;;;;
+1008;MYANMAR LETTER JHA;Lo;0;L;;;;;N;;;;;
+1009;MYANMAR LETTER NYA;Lo;0;L;;;;;N;;;;;
+100A;MYANMAR LETTER NNYA;Lo;0;L;;;;;N;;;;;
+100B;MYANMAR LETTER TTA;Lo;0;L;;;;;N;;;;;
+100C;MYANMAR LETTER TTHA;Lo;0;L;;;;;N;;;;;
+100D;MYANMAR LETTER DDA;Lo;0;L;;;;;N;;;;;
+100E;MYANMAR LETTER DDHA;Lo;0;L;;;;;N;;;;;
+100F;MYANMAR LETTER NNA;Lo;0;L;;;;;N;;;;;
+1010;MYANMAR LETTER TA;Lo;0;L;;;;;N;;;;;
+1011;MYANMAR LETTER THA;Lo;0;L;;;;;N;;;;;
+1012;MYANMAR LETTER DA;Lo;0;L;;;;;N;;;;;
+1013;MYANMAR LETTER DHA;Lo;0;L;;;;;N;;;;;
+1014;MYANMAR LETTER NA;Lo;0;L;;;;;N;;;;;
+1015;MYANMAR LETTER PA;Lo;0;L;;;;;N;;;;;
+1016;MYANMAR LETTER PHA;Lo;0;L;;;;;N;;;;;
+1017;MYANMAR LETTER BA;Lo;0;L;;;;;N;;;;;
+1018;MYANMAR LETTER BHA;Lo;0;L;;;;;N;;;;;
+1019;MYANMAR LETTER MA;Lo;0;L;;;;;N;;;;;
+101A;MYANMAR LETTER YA;Lo;0;L;;;;;N;;;;;
+101B;MYANMAR LETTER RA;Lo;0;L;;;;;N;;;;;
+101C;MYANMAR LETTER LA;Lo;0;L;;;;;N;;;;;
+101D;MYANMAR LETTER WA;Lo;0;L;;;;;N;;;;;
+101E;MYANMAR LETTER SA;Lo;0;L;;;;;N;;;;;
+101F;MYANMAR LETTER HA;Lo;0;L;;;;;N;;;;;
+1020;MYANMAR LETTER LLA;Lo;0;L;;;;;N;;;;;
+1021;MYANMAR LETTER A;Lo;0;L;;;;;N;;;;;
+1022;MYANMAR LETTER SHAN A;Lo;0;L;;;;;N;;;;;
+1023;MYANMAR LETTER I;Lo;0;L;;;;;N;;;;;
+1024;MYANMAR LETTER II;Lo;0;L;;;;;N;;;;;
+1025;MYANMAR LETTER U;Lo;0;L;;;;;N;;;;;
+1026;MYANMAR LETTER UU;Lo;0;L;1025 102E;;;;N;;;;;
+1027;MYANMAR LETTER E;Lo;0;L;;;;;N;;;;;
+1028;MYANMAR LETTER MON E;Lo;0;L;;;;;N;;;;;
+1029;MYANMAR LETTER O;Lo;0;L;;;;;N;;;;;
+102A;MYANMAR LETTER AU;Lo;0;L;;;;;N;;;;;
+102B;MYANMAR VOWEL SIGN TALL AA;Mc;0;L;;;;;N;;;;;
+102C;MYANMAR VOWEL SIGN AA;Mc;0;L;;;;;N;;;;;
+102D;MYANMAR VOWEL SIGN I;Mn;0;NSM;;;;;N;;;;;
+102E;MYANMAR VOWEL SIGN II;Mn;0;NSM;;;;;N;;;;;
+102F;MYANMAR VOWEL SIGN U;Mn;0;NSM;;;;;N;;;;;
+1030;MYANMAR VOWEL SIGN UU;Mn;0;NSM;;;;;N;;;;;
+1031;MYANMAR VOWEL SIGN E;Mc;0;L;;;;;N;;;;;
+1032;MYANMAR VOWEL SIGN AI;Mn;0;NSM;;;;;N;;;;;
+1033;MYANMAR VOWEL SIGN MON II;Mn;0;NSM;;;;;N;;;;;
+1034;MYANMAR VOWEL SIGN MON O;Mn;0;NSM;;;;;N;;;;;
+1035;MYANMAR VOWEL SIGN E ABOVE;Mn;0;NSM;;;;;N;;;;;
+1036;MYANMAR SIGN ANUSVARA;Mn;0;NSM;;;;;N;;;;;
+1037;MYANMAR SIGN DOT BELOW;Mn;7;NSM;;;;;N;;;;;
+1038;MYANMAR SIGN VISARGA;Mc;0;L;;;;;N;;;;;
+1039;MYANMAR SIGN VIRAMA;Mn;9;NSM;;;;;N;;;;;
+103A;MYANMAR SIGN ASAT;Mn;9;NSM;;;;;N;;;;;
+103B;MYANMAR CONSONANT SIGN MEDIAL YA;Mc;0;L;;;;;N;;;;;
+103C;MYANMAR CONSONANT SIGN MEDIAL RA;Mc;0;L;;;;;N;;;;;
+103D;MYANMAR CONSONANT SIGN MEDIAL WA;Mn;0;NSM;;;;;N;;;;;
+103E;MYANMAR CONSONANT SIGN MEDIAL HA;Mn;0;NSM;;;;;N;;;;;
+103F;MYANMAR LETTER GREAT SA;Lo;0;L;;;;;N;;;;;
+1040;MYANMAR DIGIT ZERO;Nd;0;L;;0;0;0;N;;;;;
+1041;MYANMAR DIGIT ONE;Nd;0;L;;1;1;1;N;;;;;
+1042;MYANMAR DIGIT TWO;Nd;0;L;;2;2;2;N;;;;;
+1043;MYANMAR DIGIT THREE;Nd;0;L;;3;3;3;N;;;;;
+1044;MYANMAR DIGIT FOUR;Nd;0;L;;4;4;4;N;;;;;
+1045;MYANMAR DIGIT FIVE;Nd;0;L;;5;5;5;N;;;;;
+1046;MYANMAR DIGIT SIX;Nd;0;L;;6;6;6;N;;;;;
+1047;MYANMAR DIGIT SEVEN;Nd;0;L;;7;7;7;N;;;;;
+1048;MYANMAR DIGIT EIGHT;Nd;0;L;;8;8;8;N;;;;;
+1049;MYANMAR DIGIT NINE;Nd;0;L;;9;9;9;N;;;;;
+104A;MYANMAR SIGN LITTLE SECTION;Po;0;L;;;;;N;;;;;
+104B;MYANMAR SIGN SECTION;Po;0;L;;;;;N;;;;;
+104C;MYANMAR SYMBOL LOCATIVE;Po;0;L;;;;;N;;;;;
+104D;MYANMAR SYMBOL COMPLETED;Po;0;L;;;;;N;;;;;
+104E;MYANMAR SYMBOL AFOREMENTIONED;Po;0;L;;;;;N;;;;;
+104F;MYANMAR SYMBOL GENITIVE;Po;0;L;;;;;N;;;;;
+1050;MYANMAR LETTER SHA;Lo;0;L;;;;;N;;;;;
+1051;MYANMAR LETTER SSA;Lo;0;L;;;;;N;;;;;
+1052;MYANMAR LETTER VOCALIC R;Lo;0;L;;;;;N;;;;;
+1053;MYANMAR LETTER VOCALIC RR;Lo;0;L;;;;;N;;;;;
+1054;MYANMAR LETTER VOCALIC L;Lo;0;L;;;;;N;;;;;
+1055;MYANMAR LETTER VOCALIC LL;Lo;0;L;;;;;N;;;;;
+1056;MYANMAR VOWEL SIGN VOCALIC R;Mc;0;L;;;;;N;;;;;
+1057;MYANMAR VOWEL SIGN VOCALIC RR;Mc;0;L;;;;;N;;;;;
+1058;MYANMAR VOWEL SIGN VOCALIC L;Mn;0;NSM;;;;;N;;;;;
+1059;MYANMAR VOWEL SIGN VOCALIC LL;Mn;0;NSM;;;;;N;;;;;
+105A;MYANMAR LETTER MON NGA;Lo;0;L;;;;;N;;;;;
+105B;MYANMAR LETTER MON JHA;Lo;0;L;;;;;N;;;;;
+105C;MYANMAR LETTER MON BBA;Lo;0;L;;;;;N;;;;;
+105D;MYANMAR LETTER MON BBE;Lo;0;L;;;;;N;;;;;
+105E;MYANMAR CONSONANT SIGN MON MEDIAL NA;Mn;0;NSM;;;;;N;;;;;
+105F;MYANMAR CONSONANT SIGN MON MEDIAL MA;Mn;0;NSM;;;;;N;;;;;
+1060;MYANMAR CONSONANT SIGN MON MEDIAL LA;Mn;0;NSM;;;;;N;;;;;
+1061;MYANMAR LETTER SGAW KAREN SHA;Lo;0;L;;;;;N;;;;;
+1062;MYANMAR VOWEL SIGN SGAW KAREN EU;Mc;0;L;;;;;N;;;;;
+1063;MYANMAR TONE MARK SGAW KAREN HATHI;Mc;0;L;;;;;N;;;;;
+1064;MYANMAR TONE MARK SGAW KAREN KE PHO;Mc;0;L;;;;;N;;;;;
+1065;MYANMAR LETTER WESTERN PWO KAREN THA;Lo;0;L;;;;;N;;;;;
+1066;MYANMAR LETTER WESTERN PWO KAREN PWA;Lo;0;L;;;;;N;;;;;
+1067;MYANMAR VOWEL SIGN WESTERN PWO KAREN EU;Mc;0;L;;;;;N;;;;;
+1068;MYANMAR VOWEL SIGN WESTERN PWO KAREN UE;Mc;0;L;;;;;N;;;;;
+1069;MYANMAR SIGN WESTERN PWO KAREN TONE-1;Mc;0;L;;;;;N;;;;;
+106A;MYANMAR SIGN WESTERN PWO KAREN TONE-2;Mc;0;L;;;;;N;;;;;
+106B;MYANMAR SIGN WESTERN PWO KAREN TONE-3;Mc;0;L;;;;;N;;;;;
+106C;MYANMAR SIGN WESTERN PWO KAREN TONE-4;Mc;0;L;;;;;N;;;;;
+106D;MYANMAR SIGN WESTERN PWO KAREN TONE-5;Mc;0;L;;;;;N;;;;;
+106E;MYANMAR LETTER EASTERN PWO KAREN NNA;Lo;0;L;;;;;N;;;;;
+106F;MYANMAR LETTER EASTERN PWO KAREN YWA;Lo;0;L;;;;;N;;;;;
+1070;MYANMAR LETTER EASTERN PWO KAREN GHWA;Lo;0;L;;;;;N;;;;;
+1071;MYANMAR VOWEL SIGN GEBA KAREN I;Mn;0;NSM;;;;;N;;;;;
+1072;MYANMAR VOWEL SIGN KAYAH OE;Mn;0;NSM;;;;;N;;;;;
+1073;MYANMAR VOWEL SIGN KAYAH U;Mn;0;NSM;;;;;N;;;;;
+1074;MYANMAR VOWEL SIGN KAYAH EE;Mn;0;NSM;;;;;N;;;;;
+1075;MYANMAR LETTER SHAN KA;Lo;0;L;;;;;N;;;;;
+1076;MYANMAR LETTER SHAN KHA;Lo;0;L;;;;;N;;;;;
+1077;MYANMAR LETTER SHAN GA;Lo;0;L;;;;;N;;;;;
+1078;MYANMAR LETTER SHAN CA;Lo;0;L;;;;;N;;;;;
+1079;MYANMAR LETTER SHAN ZA;Lo;0;L;;;;;N;;;;;
+107A;MYANMAR LETTER SHAN NYA;Lo;0;L;;;;;N;;;;;
+107B;MYANMAR LETTER SHAN DA;Lo;0;L;;;;;N;;;;;
+107C;MYANMAR LETTER SHAN NA;Lo;0;L;;;;;N;;;;;
+107D;MYANMAR LETTER SHAN PHA;Lo;0;L;;;;;N;;;;;
+107E;MYANMAR LETTER SHAN FA;Lo;0;L;;;;;N;;;;;
+107F;MYANMAR LETTER SHAN BA;Lo;0;L;;;;;N;;;;;
+1080;MYANMAR LETTER SHAN THA;Lo;0;L;;;;;N;;;;;
+1081;MYANMAR LETTER SHAN HA;Lo;0;L;;;;;N;;;;;
+1082;MYANMAR CONSONANT SIGN SHAN MEDIAL WA;Mn;0;NSM;;;;;N;;;;;
+1083;MYANMAR VOWEL SIGN SHAN AA;Mc;0;L;;;;;N;;;;;
+1084;MYANMAR VOWEL SIGN SHAN E;Mc;0;L;;;;;N;;;;;
+1085;MYANMAR VOWEL SIGN SHAN E ABOVE;Mn;0;NSM;;;;;N;;;;;
+1086;MYANMAR VOWEL SIGN SHAN FINAL Y;Mn;0;NSM;;;;;N;;;;;
+1087;MYANMAR SIGN SHAN TONE-2;Mc;0;L;;;;;N;;;;;
+1088;MYANMAR SIGN SHAN TONE-3;Mc;0;L;;;;;N;;;;;
+1089;MYANMAR SIGN SHAN TONE-5;Mc;0;L;;;;;N;;;;;
+108A;MYANMAR SIGN SHAN TONE-6;Mc;0;L;;;;;N;;;;;
+108B;MYANMAR SIGN SHAN COUNCIL TONE-2;Mc;0;L;;;;;N;;;;;
+108C;MYANMAR SIGN SHAN COUNCIL TONE-3;Mc;0;L;;;;;N;;;;;
+108D;MYANMAR SIGN SHAN COUNCIL EMPHATIC TONE;Mn;220;NSM;;;;;N;;;;;
+108E;MYANMAR LETTER RUMAI PALAUNG FA;Lo;0;L;;;;;N;;;;;
+108F;MYANMAR SIGN RUMAI PALAUNG TONE-5;Mc;0;L;;;;;N;;;;;
+1090;MYANMAR SHAN DIGIT ZERO;Nd;0;L;;0;0;0;N;;;;;
+1091;MYANMAR SHAN DIGIT ONE;Nd;0;L;;1;1;1;N;;;;;
+1092;MYANMAR SHAN DIGIT TWO;Nd;0;L;;2;2;2;N;;;;;
+1093;MYANMAR SHAN DIGIT THREE;Nd;0;L;;3;3;3;N;;;;;
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+12E6;ETHIOPIC SYLLABLE ZHO;Lo;0;L;;;;;N;;;;;
+12E7;ETHIOPIC SYLLABLE ZHWA;Lo;0;L;;;;;N;;;;;
+12E8;ETHIOPIC SYLLABLE YA;Lo;0;L;;;;;N;;;;;
+12E9;ETHIOPIC SYLLABLE YU;Lo;0;L;;;;;N;;;;;
+12EA;ETHIOPIC SYLLABLE YI;Lo;0;L;;;;;N;;;;;
+12EB;ETHIOPIC SYLLABLE YAA;Lo;0;L;;;;;N;;;;;
+12EC;ETHIOPIC SYLLABLE YEE;Lo;0;L;;;;;N;;;;;
+12ED;ETHIOPIC SYLLABLE YE;Lo;0;L;;;;;N;;;;;
+12EE;ETHIOPIC SYLLABLE YO;Lo;0;L;;;;;N;;;;;
+12EF;ETHIOPIC SYLLABLE YOA;Lo;0;L;;;;;N;;;;;
+12F0;ETHIOPIC SYLLABLE DA;Lo;0;L;;;;;N;;;;;
+12F1;ETHIOPIC SYLLABLE DU;Lo;0;L;;;;;N;;;;;
+12F2;ETHIOPIC SYLLABLE DI;Lo;0;L;;;;;N;;;;;
+12F3;ETHIOPIC SYLLABLE DAA;Lo;0;L;;;;;N;;;;;
+12F4;ETHIOPIC SYLLABLE DEE;Lo;0;L;;;;;N;;;;;
+12F5;ETHIOPIC SYLLABLE DE;Lo;0;L;;;;;N;;;;;
+12F6;ETHIOPIC SYLLABLE DO;Lo;0;L;;;;;N;;;;;
+12F7;ETHIOPIC SYLLABLE DWA;Lo;0;L;;;;;N;;;;;
+12F8;ETHIOPIC SYLLABLE DDA;Lo;0;L;;;;;N;;;;;
+12F9;ETHIOPIC SYLLABLE DDU;Lo;0;L;;;;;N;;;;;
+12FA;ETHIOPIC SYLLABLE DDI;Lo;0;L;;;;;N;;;;;
+12FB;ETHIOPIC SYLLABLE DDAA;Lo;0;L;;;;;N;;;;;
+12FC;ETHIOPIC SYLLABLE DDEE;Lo;0;L;;;;;N;;;;;
+12FD;ETHIOPIC SYLLABLE DDE;Lo;0;L;;;;;N;;;;;
+12FE;ETHIOPIC SYLLABLE DDO;Lo;0;L;;;;;N;;;;;
+12FF;ETHIOPIC SYLLABLE DDWA;Lo;0;L;;;;;N;;;;;
+1300;ETHIOPIC SYLLABLE JA;Lo;0;L;;;;;N;;;;;
+1301;ETHIOPIC SYLLABLE JU;Lo;0;L;;;;;N;;;;;
+1302;ETHIOPIC SYLLABLE JI;Lo;0;L;;;;;N;;;;;
+1303;ETHIOPIC SYLLABLE JAA;Lo;0;L;;;;;N;;;;;
+1304;ETHIOPIC SYLLABLE JEE;Lo;0;L;;;;;N;;;;;
+1305;ETHIOPIC SYLLABLE JE;Lo;0;L;;;;;N;;;;;
+1306;ETHIOPIC SYLLABLE JO;Lo;0;L;;;;;N;;;;;
+1307;ETHIOPIC SYLLABLE JWA;Lo;0;L;;;;;N;;;;;
+1308;ETHIOPIC SYLLABLE GA;Lo;0;L;;;;;N;;;;;
+1309;ETHIOPIC SYLLABLE GU;Lo;0;L;;;;;N;;;;;
+130A;ETHIOPIC SYLLABLE GI;Lo;0;L;;;;;N;;;;;
+130B;ETHIOPIC SYLLABLE GAA;Lo;0;L;;;;;N;;;;;
+130C;ETHIOPIC SYLLABLE GEE;Lo;0;L;;;;;N;;;;;
+130D;ETHIOPIC SYLLABLE GE;Lo;0;L;;;;;N;;;;;
+130E;ETHIOPIC SYLLABLE GO;Lo;0;L;;;;;N;;;;;
+130F;ETHIOPIC SYLLABLE GOA;Lo;0;L;;;;;N;;;;;
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+1313;ETHIOPIC SYLLABLE GWAA;Lo;0;L;;;;;N;;;;;
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+131A;ETHIOPIC SYLLABLE GGI;Lo;0;L;;;;;N;;;;;
+131B;ETHIOPIC SYLLABLE GGAA;Lo;0;L;;;;;N;;;;;
+131C;ETHIOPIC SYLLABLE GGEE;Lo;0;L;;;;;N;;;;;
+131D;ETHIOPIC SYLLABLE GGE;Lo;0;L;;;;;N;;;;;
+131E;ETHIOPIC SYLLABLE GGO;Lo;0;L;;;;;N;;;;;
+131F;ETHIOPIC SYLLABLE GGWAA;Lo;0;L;;;;;N;;;;;
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+1324;ETHIOPIC SYLLABLE THEE;Lo;0;L;;;;;N;;;;;
+1325;ETHIOPIC SYLLABLE THE;Lo;0;L;;;;;N;;;;;
+1326;ETHIOPIC SYLLABLE THO;Lo;0;L;;;;;N;;;;;
+1327;ETHIOPIC SYLLABLE THWA;Lo;0;L;;;;;N;;;;;
+1328;ETHIOPIC SYLLABLE CHA;Lo;0;L;;;;;N;;;;;
+1329;ETHIOPIC SYLLABLE CHU;Lo;0;L;;;;;N;;;;;
+132A;ETHIOPIC SYLLABLE CHI;Lo;0;L;;;;;N;;;;;
+132B;ETHIOPIC SYLLABLE CHAA;Lo;0;L;;;;;N;;;;;
+132C;ETHIOPIC SYLLABLE CHEE;Lo;0;L;;;;;N;;;;;
+132D;ETHIOPIC SYLLABLE CHE;Lo;0;L;;;;;N;;;;;
+132E;ETHIOPIC SYLLABLE CHO;Lo;0;L;;;;;N;;;;;
+132F;ETHIOPIC SYLLABLE CHWA;Lo;0;L;;;;;N;;;;;
+1330;ETHIOPIC SYLLABLE PHA;Lo;0;L;;;;;N;;;;;
+1331;ETHIOPIC SYLLABLE PHU;Lo;0;L;;;;;N;;;;;
+1332;ETHIOPIC SYLLABLE PHI;Lo;0;L;;;;;N;;;;;
+1333;ETHIOPIC SYLLABLE PHAA;Lo;0;L;;;;;N;;;;;
+1334;ETHIOPIC SYLLABLE PHEE;Lo;0;L;;;;;N;;;;;
+1335;ETHIOPIC SYLLABLE PHE;Lo;0;L;;;;;N;;;;;
+1336;ETHIOPIC SYLLABLE PHO;Lo;0;L;;;;;N;;;;;
+1337;ETHIOPIC SYLLABLE PHWA;Lo;0;L;;;;;N;;;;;
+1338;ETHIOPIC SYLLABLE TSA;Lo;0;L;;;;;N;;;;;
+1339;ETHIOPIC SYLLABLE TSU;Lo;0;L;;;;;N;;;;;
+133A;ETHIOPIC SYLLABLE TSI;Lo;0;L;;;;;N;;;;;
+133B;ETHIOPIC SYLLABLE TSAA;Lo;0;L;;;;;N;;;;;
+133C;ETHIOPIC SYLLABLE TSEE;Lo;0;L;;;;;N;;;;;
+133D;ETHIOPIC SYLLABLE TSE;Lo;0;L;;;;;N;;;;;
+133E;ETHIOPIC SYLLABLE TSO;Lo;0;L;;;;;N;;;;;
+133F;ETHIOPIC SYLLABLE TSWA;Lo;0;L;;;;;N;;;;;
+1340;ETHIOPIC SYLLABLE TZA;Lo;0;L;;;;;N;;;;;
+1341;ETHIOPIC SYLLABLE TZU;Lo;0;L;;;;;N;;;;;
+1342;ETHIOPIC SYLLABLE TZI;Lo;0;L;;;;;N;;;;;
+1343;ETHIOPIC SYLLABLE TZAA;Lo;0;L;;;;;N;;;;;
+1344;ETHIOPIC SYLLABLE TZEE;Lo;0;L;;;;;N;;;;;
+1345;ETHIOPIC SYLLABLE TZE;Lo;0;L;;;;;N;;;;;
+1346;ETHIOPIC SYLLABLE TZO;Lo;0;L;;;;;N;;;;;
+1347;ETHIOPIC SYLLABLE TZOA;Lo;0;L;;;;;N;;;;;
+1348;ETHIOPIC SYLLABLE FA;Lo;0;L;;;;;N;;;;;
+1349;ETHIOPIC SYLLABLE FU;Lo;0;L;;;;;N;;;;;
+134A;ETHIOPIC SYLLABLE FI;Lo;0;L;;;;;N;;;;;
+134B;ETHIOPIC SYLLABLE FAA;Lo;0;L;;;;;N;;;;;
+134C;ETHIOPIC SYLLABLE FEE;Lo;0;L;;;;;N;;;;;
+134D;ETHIOPIC SYLLABLE FE;Lo;0;L;;;;;N;;;;;
+134E;ETHIOPIC SYLLABLE FO;Lo;0;L;;;;;N;;;;;
+134F;ETHIOPIC SYLLABLE FWA;Lo;0;L;;;;;N;;;;;
+1350;ETHIOPIC SYLLABLE PA;Lo;0;L;;;;;N;;;;;
+1351;ETHIOPIC SYLLABLE PU;Lo;0;L;;;;;N;;;;;
+1352;ETHIOPIC SYLLABLE PI;Lo;0;L;;;;;N;;;;;
+1353;ETHIOPIC SYLLABLE PAA;Lo;0;L;;;;;N;;;;;
+1354;ETHIOPIC SYLLABLE PEE;Lo;0;L;;;;;N;;;;;
+1355;ETHIOPIC SYLLABLE PE;Lo;0;L;;;;;N;;;;;
+1356;ETHIOPIC SYLLABLE PO;Lo;0;L;;;;;N;;;;;
+1357;ETHIOPIC SYLLABLE PWA;Lo;0;L;;;;;N;;;;;
+1358;ETHIOPIC SYLLABLE RYA;Lo;0;L;;;;;N;;;;;
+1359;ETHIOPIC SYLLABLE MYA;Lo;0;L;;;;;N;;;;;
+135A;ETHIOPIC SYLLABLE FYA;Lo;0;L;;;;;N;;;;;
+135D;ETHIOPIC COMBINING GEMINATION AND VOWEL LENGTH MARK;Mn;230;NSM;;;;;N;;;;;
+135E;ETHIOPIC COMBINING VOWEL LENGTH MARK;Mn;230;NSM;;;;;N;;;;;
+135F;ETHIOPIC COMBINING GEMINATION MARK;Mn;230;NSM;;;;;N;;;;;
+1360;ETHIOPIC SECTION MARK;Po;0;L;;;;;N;;;;;
+1361;ETHIOPIC WORDSPACE;Po;0;L;;;;;N;;;;;
+1362;ETHIOPIC FULL STOP;Po;0;L;;;;;N;;;;;
+1363;ETHIOPIC COMMA;Po;0;L;;;;;N;;;;;
+1364;ETHIOPIC SEMICOLON;Po;0;L;;;;;N;;;;;
+1365;ETHIOPIC COLON;Po;0;L;;;;;N;;;;;
+1366;ETHIOPIC PREFACE COLON;Po;0;L;;;;;N;;;;;
+1367;ETHIOPIC QUESTION MARK;Po;0;L;;;;;N;;;;;
+1368;ETHIOPIC PARAGRAPH SEPARATOR;Po;0;L;;;;;N;;;;;
+1369;ETHIOPIC DIGIT ONE;No;0;L;;;1;1;N;;;;;
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+136C;ETHIOPIC DIGIT FOUR;No;0;L;;;4;4;N;;;;;
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+1370;ETHIOPIC DIGIT EIGHT;No;0;L;;;8;8;N;;;;;
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+1372;ETHIOPIC NUMBER TEN;No;0;L;;;;10;N;;;;;
+1373;ETHIOPIC NUMBER TWENTY;No;0;L;;;;20;N;;;;;
+1374;ETHIOPIC NUMBER THIRTY;No;0;L;;;;30;N;;;;;
+1375;ETHIOPIC NUMBER FORTY;No;0;L;;;;40;N;;;;;
+1376;ETHIOPIC NUMBER FIFTY;No;0;L;;;;50;N;;;;;
+1377;ETHIOPIC NUMBER SIXTY;No;0;L;;;;60;N;;;;;
+1378;ETHIOPIC NUMBER SEVENTY;No;0;L;;;;70;N;;;;;
+1379;ETHIOPIC NUMBER EIGHTY;No;0;L;;;;80;N;;;;;
+137A;ETHIOPIC NUMBER NINETY;No;0;L;;;;90;N;;;;;
+137B;ETHIOPIC NUMBER HUNDRED;No;0;L;;;;100;N;;;;;
+137C;ETHIOPIC NUMBER TEN THOUSAND;No;0;L;;;;10000;N;;;;;
+1380;ETHIOPIC SYLLABLE SEBATBEIT MWA;Lo;0;L;;;;;N;;;;;
+1381;ETHIOPIC SYLLABLE MWI;Lo;0;L;;;;;N;;;;;
+1382;ETHIOPIC SYLLABLE MWEE;Lo;0;L;;;;;N;;;;;
+1383;ETHIOPIC SYLLABLE MWE;Lo;0;L;;;;;N;;;;;
+1384;ETHIOPIC SYLLABLE SEBATBEIT BWA;Lo;0;L;;;;;N;;;;;
+1385;ETHIOPIC SYLLABLE BWI;Lo;0;L;;;;;N;;;;;
+1386;ETHIOPIC SYLLABLE BWEE;Lo;0;L;;;;;N;;;;;
+1387;ETHIOPIC SYLLABLE BWE;Lo;0;L;;;;;N;;;;;
+1388;ETHIOPIC SYLLABLE SEBATBEIT FWA;Lo;0;L;;;;;N;;;;;
+1389;ETHIOPIC SYLLABLE FWI;Lo;0;L;;;;;N;;;;;
+138A;ETHIOPIC SYLLABLE FWEE;Lo;0;L;;;;;N;;;;;
+138B;ETHIOPIC SYLLABLE FWE;Lo;0;L;;;;;N;;;;;
+138C;ETHIOPIC SYLLABLE SEBATBEIT PWA;Lo;0;L;;;;;N;;;;;
+138D;ETHIOPIC SYLLABLE PWI;Lo;0;L;;;;;N;;;;;
+138E;ETHIOPIC SYLLABLE PWEE;Lo;0;L;;;;;N;;;;;
+138F;ETHIOPIC SYLLABLE PWE;Lo;0;L;;;;;N;;;;;
+1390;ETHIOPIC TONAL MARK YIZET;So;0;ON;;;;;N;;;;;
+1391;ETHIOPIC TONAL MARK DERET;So;0;ON;;;;;N;;;;;
+1392;ETHIOPIC TONAL MARK RIKRIK;So;0;ON;;;;;N;;;;;
+1393;ETHIOPIC TONAL MARK SHORT RIKRIK;So;0;ON;;;;;N;;;;;
+1394;ETHIOPIC TONAL MARK DIFAT;So;0;ON;;;;;N;;;;;
+1395;ETHIOPIC TONAL MARK KENAT;So;0;ON;;;;;N;;;;;
+1396;ETHIOPIC TONAL MARK CHIRET;So;0;ON;;;;;N;;;;;
+1397;ETHIOPIC TONAL MARK HIDET;So;0;ON;;;;;N;;;;;
+1398;ETHIOPIC TONAL MARK DERET-HIDET;So;0;ON;;;;;N;;;;;
+1399;ETHIOPIC TONAL MARK KURT;So;0;ON;;;;;N;;;;;
+13A0;CHEROKEE LETTER A;Lo;0;L;;;;;N;;;;;
+13A1;CHEROKEE LETTER E;Lo;0;L;;;;;N;;;;;
+13A2;CHEROKEE LETTER I;Lo;0;L;;;;;N;;;;;
+13A3;CHEROKEE LETTER O;Lo;0;L;;;;;N;;;;;
+13A4;CHEROKEE LETTER U;Lo;0;L;;;;;N;;;;;
+13A5;CHEROKEE LETTER V;Lo;0;L;;;;;N;;;;;
+13A6;CHEROKEE LETTER GA;Lo;0;L;;;;;N;;;;;
+13A7;CHEROKEE LETTER KA;Lo;0;L;;;;;N;;;;;
+13A8;CHEROKEE LETTER GE;Lo;0;L;;;;;N;;;;;
+13A9;CHEROKEE LETTER GI;Lo;0;L;;;;;N;;;;;
+13AA;CHEROKEE LETTER GO;Lo;0;L;;;;;N;;;;;
+13AB;CHEROKEE LETTER GU;Lo;0;L;;;;;N;;;;;
+13AC;CHEROKEE LETTER GV;Lo;0;L;;;;;N;;;;;
+13AD;CHEROKEE LETTER HA;Lo;0;L;;;;;N;;;;;
+13AE;CHEROKEE LETTER HE;Lo;0;L;;;;;N;;;;;
+13AF;CHEROKEE LETTER HI;Lo;0;L;;;;;N;;;;;
+13B0;CHEROKEE LETTER HO;Lo;0;L;;;;;N;;;;;
+13B1;CHEROKEE LETTER HU;Lo;0;L;;;;;N;;;;;
+13B2;CHEROKEE LETTER HV;Lo;0;L;;;;;N;;;;;
+13B3;CHEROKEE LETTER LA;Lo;0;L;;;;;N;;;;;
+13B4;CHEROKEE LETTER LE;Lo;0;L;;;;;N;;;;;
+13B5;CHEROKEE LETTER LI;Lo;0;L;;;;;N;;;;;
+13B6;CHEROKEE LETTER LO;Lo;0;L;;;;;N;;;;;
+13B7;CHEROKEE LETTER LU;Lo;0;L;;;;;N;;;;;
+13B8;CHEROKEE LETTER LV;Lo;0;L;;;;;N;;;;;
+13B9;CHEROKEE LETTER MA;Lo;0;L;;;;;N;;;;;
+13BA;CHEROKEE LETTER ME;Lo;0;L;;;;;N;;;;;
+13BB;CHEROKEE LETTER MI;Lo;0;L;;;;;N;;;;;
+13BC;CHEROKEE LETTER MO;Lo;0;L;;;;;N;;;;;
+13BD;CHEROKEE LETTER MU;Lo;0;L;;;;;N;;;;;
+13BE;CHEROKEE LETTER NA;Lo;0;L;;;;;N;;;;;
+13BF;CHEROKEE LETTER HNA;Lo;0;L;;;;;N;;;;;
+13C0;CHEROKEE LETTER NAH;Lo;0;L;;;;;N;;;;;
+13C1;CHEROKEE LETTER NE;Lo;0;L;;;;;N;;;;;
+13C2;CHEROKEE LETTER NI;Lo;0;L;;;;;N;;;;;
+13C3;CHEROKEE LETTER NO;Lo;0;L;;;;;N;;;;;
+13C4;CHEROKEE LETTER NU;Lo;0;L;;;;;N;;;;;
+13C5;CHEROKEE LETTER NV;Lo;0;L;;;;;N;;;;;
+13C6;CHEROKEE LETTER QUA;Lo;0;L;;;;;N;;;;;
+13C7;CHEROKEE LETTER QUE;Lo;0;L;;;;;N;;;;;
+13C8;CHEROKEE LETTER QUI;Lo;0;L;;;;;N;;;;;
+13C9;CHEROKEE LETTER QUO;Lo;0;L;;;;;N;;;;;
+13CA;CHEROKEE LETTER QUU;Lo;0;L;;;;;N;;;;;
+13CB;CHEROKEE LETTER QUV;Lo;0;L;;;;;N;;;;;
+13CC;CHEROKEE LETTER SA;Lo;0;L;;;;;N;;;;;
+13CD;CHEROKEE LETTER S;Lo;0;L;;;;;N;;;;;
+13CE;CHEROKEE LETTER SE;Lo;0;L;;;;;N;;;;;
+13CF;CHEROKEE LETTER SI;Lo;0;L;;;;;N;;;;;
+13D0;CHEROKEE LETTER SO;Lo;0;L;;;;;N;;;;;
+13D1;CHEROKEE LETTER SU;Lo;0;L;;;;;N;;;;;
+13D2;CHEROKEE LETTER SV;Lo;0;L;;;;;N;;;;;
+13D3;CHEROKEE LETTER DA;Lo;0;L;;;;;N;;;;;
+13D4;CHEROKEE LETTER TA;Lo;0;L;;;;;N;;;;;
+13D5;CHEROKEE LETTER DE;Lo;0;L;;;;;N;;;;;
+13D6;CHEROKEE LETTER TE;Lo;0;L;;;;;N;;;;;
+13D7;CHEROKEE LETTER DI;Lo;0;L;;;;;N;;;;;
+13D8;CHEROKEE LETTER TI;Lo;0;L;;;;;N;;;;;
+13D9;CHEROKEE LETTER DO;Lo;0;L;;;;;N;;;;;
+13DA;CHEROKEE LETTER DU;Lo;0;L;;;;;N;;;;;
+13DB;CHEROKEE LETTER DV;Lo;0;L;;;;;N;;;;;
+13DC;CHEROKEE LETTER DLA;Lo;0;L;;;;;N;;;;;
+13DD;CHEROKEE LETTER TLA;Lo;0;L;;;;;N;;;;;
+13DE;CHEROKEE LETTER TLE;Lo;0;L;;;;;N;;;;;
+13DF;CHEROKEE LETTER TLI;Lo;0;L;;;;;N;;;;;
+13E0;CHEROKEE LETTER TLO;Lo;0;L;;;;;N;;;;;
+13E1;CHEROKEE LETTER TLU;Lo;0;L;;;;;N;;;;;
+13E2;CHEROKEE LETTER TLV;Lo;0;L;;;;;N;;;;;
+13E3;CHEROKEE LETTER TSA;Lo;0;L;;;;;N;;;;;
+13E4;CHEROKEE LETTER TSE;Lo;0;L;;;;;N;;;;;
+13E5;CHEROKEE LETTER TSI;Lo;0;L;;;;;N;;;;;
+13E6;CHEROKEE LETTER TSO;Lo;0;L;;;;;N;;;;;
+13E7;CHEROKEE LETTER TSU;Lo;0;L;;;;;N;;;;;
+13E8;CHEROKEE LETTER TSV;Lo;0;L;;;;;N;;;;;
+13E9;CHEROKEE LETTER WA;Lo;0;L;;;;;N;;;;;
+13EA;CHEROKEE LETTER WE;Lo;0;L;;;;;N;;;;;
+13EB;CHEROKEE LETTER WI;Lo;0;L;;;;;N;;;;;
+13EC;CHEROKEE LETTER WO;Lo;0;L;;;;;N;;;;;
+13ED;CHEROKEE LETTER WU;Lo;0;L;;;;;N;;;;;
+13EE;CHEROKEE LETTER WV;Lo;0;L;;;;;N;;;;;
+13EF;CHEROKEE LETTER YA;Lo;0;L;;;;;N;;;;;
+13F0;CHEROKEE LETTER YE;Lo;0;L;;;;;N;;;;;
+13F1;CHEROKEE LETTER YI;Lo;0;L;;;;;N;;;;;
+13F2;CHEROKEE LETTER YO;Lo;0;L;;;;;N;;;;;
+13F3;CHEROKEE LETTER YU;Lo;0;L;;;;;N;;;;;
+13F4;CHEROKEE LETTER YV;Lo;0;L;;;;;N;;;;;
+1400;CANADIAN SYLLABICS HYPHEN;Pd;0;ON;;;;;N;;;;;
+1401;CANADIAN SYLLABICS E;Lo;0;L;;;;;N;;;;;
+1402;CANADIAN SYLLABICS AAI;Lo;0;L;;;;;N;;;;;
+1403;CANADIAN SYLLABICS I;Lo;0;L;;;;;N;;;;;
+1404;CANADIAN SYLLABICS II;Lo;0;L;;;;;N;;;;;
+1405;CANADIAN SYLLABICS O;Lo;0;L;;;;;N;;;;;
+1406;CANADIAN SYLLABICS OO;Lo;0;L;;;;;N;;;;;
+1407;CANADIAN SYLLABICS Y-CREE OO;Lo;0;L;;;;;N;;;;;
+1408;CANADIAN SYLLABICS CARRIER EE;Lo;0;L;;;;;N;;;;;
+1409;CANADIAN SYLLABICS CARRIER I;Lo;0;L;;;;;N;;;;;
+140A;CANADIAN SYLLABICS A;Lo;0;L;;;;;N;;;;;
+140B;CANADIAN SYLLABICS AA;Lo;0;L;;;;;N;;;;;
+140C;CANADIAN SYLLABICS WE;Lo;0;L;;;;;N;;;;;
+140D;CANADIAN SYLLABICS WEST-CREE WE;Lo;0;L;;;;;N;;;;;
+140E;CANADIAN SYLLABICS WI;Lo;0;L;;;;;N;;;;;
+140F;CANADIAN SYLLABICS WEST-CREE WI;Lo;0;L;;;;;N;;;;;
+1410;CANADIAN SYLLABICS WII;Lo;0;L;;;;;N;;;;;
+1411;CANADIAN SYLLABICS WEST-CREE WII;Lo;0;L;;;;;N;;;;;
+1412;CANADIAN SYLLABICS WO;Lo;0;L;;;;;N;;;;;
+1413;CANADIAN SYLLABICS WEST-CREE WO;Lo;0;L;;;;;N;;;;;
+1414;CANADIAN SYLLABICS WOO;Lo;0;L;;;;;N;;;;;
+1415;CANADIAN SYLLABICS WEST-CREE WOO;Lo;0;L;;;;;N;;;;;
+1416;CANADIAN SYLLABICS NASKAPI WOO;Lo;0;L;;;;;N;;;;;
+1417;CANADIAN SYLLABICS WA;Lo;0;L;;;;;N;;;;;
+1418;CANADIAN SYLLABICS WEST-CREE WA;Lo;0;L;;;;;N;;;;;
+1419;CANADIAN SYLLABICS WAA;Lo;0;L;;;;;N;;;;;
+141A;CANADIAN SYLLABICS WEST-CREE WAA;Lo;0;L;;;;;N;;;;;
+141B;CANADIAN SYLLABICS NASKAPI WAA;Lo;0;L;;;;;N;;;;;
+141C;CANADIAN SYLLABICS AI;Lo;0;L;;;;;N;;;;;
+141D;CANADIAN SYLLABICS Y-CREE W;Lo;0;L;;;;;N;;;;;
+141E;CANADIAN SYLLABICS GLOTTAL STOP;Lo;0;L;;;;;N;;;;;
+141F;CANADIAN SYLLABICS FINAL ACUTE;Lo;0;L;;;;;N;;;;;
+1420;CANADIAN SYLLABICS FINAL GRAVE;Lo;0;L;;;;;N;;;;;
+1421;CANADIAN SYLLABICS FINAL BOTTOM HALF RING;Lo;0;L;;;;;N;;;;;
+1422;CANADIAN SYLLABICS FINAL TOP HALF RING;Lo;0;L;;;;;N;;;;;
+1423;CANADIAN SYLLABICS FINAL RIGHT HALF RING;Lo;0;L;;;;;N;;;;;
+1424;CANADIAN SYLLABICS FINAL RING;Lo;0;L;;;;;N;;;;;
+1425;CANADIAN SYLLABICS FINAL DOUBLE ACUTE;Lo;0;L;;;;;N;;;;;
+1426;CANADIAN SYLLABICS FINAL DOUBLE SHORT VERTICAL STROKES;Lo;0;L;;;;;N;;;;;
+1427;CANADIAN SYLLABICS FINAL MIDDLE DOT;Lo;0;L;;;;;N;;;;;
+1428;CANADIAN SYLLABICS FINAL SHORT HORIZONTAL STROKE;Lo;0;L;;;;;N;;;;;
+1429;CANADIAN SYLLABICS FINAL PLUS;Lo;0;L;;;;;N;;;;;
+142A;CANADIAN SYLLABICS FINAL DOWN TACK;Lo;0;L;;;;;N;;;;;
+142B;CANADIAN SYLLABICS EN;Lo;0;L;;;;;N;;;;;
+142C;CANADIAN SYLLABICS IN;Lo;0;L;;;;;N;;;;;
+142D;CANADIAN SYLLABICS ON;Lo;0;L;;;;;N;;;;;
+142E;CANADIAN SYLLABICS AN;Lo;0;L;;;;;N;;;;;
+142F;CANADIAN SYLLABICS PE;Lo;0;L;;;;;N;;;;;
+1430;CANADIAN SYLLABICS PAAI;Lo;0;L;;;;;N;;;;;
+1431;CANADIAN SYLLABICS PI;Lo;0;L;;;;;N;;;;;
+1432;CANADIAN SYLLABICS PII;Lo;0;L;;;;;N;;;;;
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+1667;CANADIAN SYLLABICS CARRIER TTSU;Lo;0;L;;;;;N;;;;;
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+166D;CANADIAN SYLLABICS CHI SIGN;Po;0;L;;;;;N;;;;;
+166E;CANADIAN SYLLABICS FULL STOP;Po;0;L;;;;;N;;;;;
+166F;CANADIAN SYLLABICS QAI;Lo;0;L;;;;;N;;;;;
+1670;CANADIAN SYLLABICS NGAI;Lo;0;L;;;;;N;;;;;
+1671;CANADIAN SYLLABICS NNGI;Lo;0;L;;;;;N;;;;;
+1672;CANADIAN SYLLABICS NNGII;Lo;0;L;;;;;N;;;;;
+1673;CANADIAN SYLLABICS NNGO;Lo;0;L;;;;;N;;;;;
+1674;CANADIAN SYLLABICS NNGOO;Lo;0;L;;;;;N;;;;;
+1675;CANADIAN SYLLABICS NNGA;Lo;0;L;;;;;N;;;;;
+1676;CANADIAN SYLLABICS NNGAA;Lo;0;L;;;;;N;;;;;
+1677;CANADIAN SYLLABICS WOODS-CREE THWEE;Lo;0;L;;;;;N;;;;;
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+167E;CANADIAN SYLLABICS WOODS-CREE FINAL TH;Lo;0;L;;;;;N;;;;;
+167F;CANADIAN SYLLABICS BLACKFOOT W;Lo;0;L;;;;;N;;;;;
+1680;OGHAM SPACE MARK;Zs;0;WS;;;;;N;;;;;
+1681;OGHAM LETTER BEITH;Lo;0;L;;;;;N;;;;;
+1682;OGHAM LETTER LUIS;Lo;0;L;;;;;N;;;;;
+1683;OGHAM LETTER FEARN;Lo;0;L;;;;;N;;;;;
+1684;OGHAM LETTER SAIL;Lo;0;L;;;;;N;;;;;
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+1686;OGHAM LETTER UATH;Lo;0;L;;;;;N;;;;;
+1687;OGHAM LETTER DAIR;Lo;0;L;;;;;N;;;;;
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+168D;OGHAM LETTER NGEADAL;Lo;0;L;;;;;N;;;;;
+168E;OGHAM LETTER STRAIF;Lo;0;L;;;;;N;;;;;
+168F;OGHAM LETTER RUIS;Lo;0;L;;;;;N;;;;;
+1690;OGHAM LETTER AILM;Lo;0;L;;;;;N;;;;;
+1691;OGHAM LETTER ONN;Lo;0;L;;;;;N;;;;;
+1692;OGHAM LETTER UR;Lo;0;L;;;;;N;;;;;
+1693;OGHAM LETTER EADHADH;Lo;0;L;;;;;N;;;;;
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+1697;OGHAM LETTER UILLEANN;Lo;0;L;;;;;N;;;;;
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+1699;OGHAM LETTER EAMHANCHOLL;Lo;0;L;;;;;N;;;;;
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+169B;OGHAM FEATHER MARK;Ps;0;ON;;;;;Y;;;;;
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+16A0;RUNIC LETTER FEHU FEOH FE F;Lo;0;L;;;;;N;;;;;
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+16A2;RUNIC LETTER URUZ UR U;Lo;0;L;;;;;N;;;;;
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+16A4;RUNIC LETTER Y;Lo;0;L;;;;;N;;;;;
+16A5;RUNIC LETTER W;Lo;0;L;;;;;N;;;;;
+16A6;RUNIC LETTER THURISAZ THURS THORN;Lo;0;L;;;;;N;;;;;
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+16A8;RUNIC LETTER ANSUZ A;Lo;0;L;;;;;N;;;;;
+16A9;RUNIC LETTER OS O;Lo;0;L;;;;;N;;;;;
+16AA;RUNIC LETTER AC A;Lo;0;L;;;;;N;;;;;
+16AB;RUNIC LETTER AESC;Lo;0;L;;;;;N;;;;;
+16AC;RUNIC LETTER LONG-BRANCH-OSS O;Lo;0;L;;;;;N;;;;;
+16AD;RUNIC LETTER SHORT-TWIG-OSS O;Lo;0;L;;;;;N;;;;;
+16AE;RUNIC LETTER O;Lo;0;L;;;;;N;;;;;
+16AF;RUNIC LETTER OE;Lo;0;L;;;;;N;;;;;
+16B0;RUNIC LETTER ON;Lo;0;L;;;;;N;;;;;
+16B1;RUNIC LETTER RAIDO RAD REID R;Lo;0;L;;;;;N;;;;;
+16B2;RUNIC LETTER KAUNA;Lo;0;L;;;;;N;;;;;
+16B3;RUNIC LETTER CEN;Lo;0;L;;;;;N;;;;;
+16B4;RUNIC LETTER KAUN K;Lo;0;L;;;;;N;;;;;
+16B5;RUNIC LETTER G;Lo;0;L;;;;;N;;;;;
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+16B7;RUNIC LETTER GEBO GYFU G;Lo;0;L;;;;;N;;;;;
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+16B9;RUNIC LETTER WUNJO WYNN W;Lo;0;L;;;;;N;;;;;
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+16BB;RUNIC LETTER HAEGL H;Lo;0;L;;;;;N;;;;;
+16BC;RUNIC LETTER LONG-BRANCH-HAGALL H;Lo;0;L;;;;;N;;;;;
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+16BF;RUNIC LETTER SHORT-TWIG-NAUD N;Lo;0;L;;;;;N;;;;;
+16C0;RUNIC LETTER DOTTED-N;Lo;0;L;;;;;N;;;;;
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+16C3;RUNIC LETTER JERAN J;Lo;0;L;;;;;N;;;;;
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+16C5;RUNIC LETTER LONG-BRANCH-AR AE;Lo;0;L;;;;;N;;;;;
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+16C8;RUNIC LETTER PERTHO PEORTH P;Lo;0;L;;;;;N;;;;;
+16C9;RUNIC LETTER ALGIZ EOLHX;Lo;0;L;;;;;N;;;;;
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+16CB;RUNIC LETTER SIGEL LONG-BRANCH-SOL S;Lo;0;L;;;;;N;;;;;
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+16CE;RUNIC LETTER Z;Lo;0;L;;;;;N;;;;;
+16CF;RUNIC LETTER TIWAZ TIR TYR T;Lo;0;L;;;;;N;;;;;
+16D0;RUNIC LETTER SHORT-TWIG-TYR T;Lo;0;L;;;;;N;;;;;
+16D1;RUNIC LETTER D;Lo;0;L;;;;;N;;;;;
+16D2;RUNIC LETTER BERKANAN BEORC BJARKAN B;Lo;0;L;;;;;N;;;;;
+16D3;RUNIC LETTER SHORT-TWIG-BJARKAN B;Lo;0;L;;;;;N;;;;;
+16D4;RUNIC LETTER DOTTED-P;Lo;0;L;;;;;N;;;;;
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+16D7;RUNIC LETTER MANNAZ MAN M;Lo;0;L;;;;;N;;;;;
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+16DD;RUNIC LETTER ING;Lo;0;L;;;;;N;;;;;
+16DE;RUNIC LETTER DAGAZ DAEG D;Lo;0;L;;;;;N;;;;;
+16DF;RUNIC LETTER OTHALAN ETHEL O;Lo;0;L;;;;;N;;;;;
+16E0;RUNIC LETTER EAR;Lo;0;L;;;;;N;;;;;
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+16E2;RUNIC LETTER CWEORTH;Lo;0;L;;;;;N;;;;;
+16E3;RUNIC LETTER CALC;Lo;0;L;;;;;N;;;;;
+16E4;RUNIC LETTER CEALC;Lo;0;L;;;;;N;;;;;
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+16E6;RUNIC LETTER LONG-BRANCH-YR;Lo;0;L;;;;;N;;;;;
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+16EB;RUNIC SINGLE PUNCTUATION;Po;0;L;;;;;N;;;;;
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+16EE;RUNIC ARLAUG SYMBOL;Nl;0;L;;;;17;N;;;;;
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+1703;TAGALOG LETTER KA;Lo;0;L;;;;;N;;;;;
+1704;TAGALOG LETTER GA;Lo;0;L;;;;;N;;;;;
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+1706;TAGALOG LETTER TA;Lo;0;L;;;;;N;;;;;
+1707;TAGALOG LETTER DA;Lo;0;L;;;;;N;;;;;
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+170B;TAGALOG LETTER MA;Lo;0;L;;;;;N;;;;;
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+1711;TAGALOG LETTER HA;Lo;0;L;;;;;N;;;;;
+1712;TAGALOG VOWEL SIGN I;Mn;0;NSM;;;;;N;;;;;
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+1714;TAGALOG SIGN VIRAMA;Mn;9;NSM;;;;;N;;;;;
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+1723;HANUNOO LETTER KA;Lo;0;L;;;;;N;;;;;
+1724;HANUNOO LETTER GA;Lo;0;L;;;;;N;;;;;
+1725;HANUNOO LETTER NGA;Lo;0;L;;;;;N;;;;;
+1726;HANUNOO LETTER TA;Lo;0;L;;;;;N;;;;;
+1727;HANUNOO LETTER DA;Lo;0;L;;;;;N;;;;;
+1728;HANUNOO LETTER NA;Lo;0;L;;;;;N;;;;;
+1729;HANUNOO LETTER PA;Lo;0;L;;;;;N;;;;;
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+172E;HANUNOO LETTER LA;Lo;0;L;;;;;N;;;;;
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+1731;HANUNOO LETTER HA;Lo;0;L;;;;;N;;;;;
+1732;HANUNOO VOWEL SIGN I;Mn;0;NSM;;;;;N;;;;;
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+1734;HANUNOO SIGN PAMUDPOD;Mn;9;NSM;;;;;N;;;;;
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+1743;BUHID LETTER KA;Lo;0;L;;;;;N;;;;;
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+1745;BUHID LETTER NGA;Lo;0;L;;;;;N;;;;;
+1746;BUHID LETTER TA;Lo;0;L;;;;;N;;;;;
+1747;BUHID LETTER DA;Lo;0;L;;;;;N;;;;;
+1748;BUHID LETTER NA;Lo;0;L;;;;;N;;;;;
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+174E;BUHID LETTER LA;Lo;0;L;;;;;N;;;;;
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+1750;BUHID LETTER SA;Lo;0;L;;;;;N;;;;;
+1751;BUHID LETTER HA;Lo;0;L;;;;;N;;;;;
+1752;BUHID VOWEL SIGN I;Mn;0;NSM;;;;;N;;;;;
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+1760;TAGBANWA LETTER A;Lo;0;L;;;;;N;;;;;
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+1765;TAGBANWA LETTER NGA;Lo;0;L;;;;;N;;;;;
+1766;TAGBANWA LETTER TA;Lo;0;L;;;;;N;;;;;
+1767;TAGBANWA LETTER DA;Lo;0;L;;;;;N;;;;;
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+176E;TAGBANWA LETTER LA;Lo;0;L;;;;;N;;;;;
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+1772;TAGBANWA VOWEL SIGN I;Mn;0;NSM;;;;;N;;;;;
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+1780;KHMER LETTER KA;Lo;0;L;;;;;N;;;;;
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+1782;KHMER LETTER KO;Lo;0;L;;;;;N;;;;;
+1783;KHMER LETTER KHO;Lo;0;L;;;;;N;;;;;
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+1785;KHMER LETTER CA;Lo;0;L;;;;;N;;;;;
+1786;KHMER LETTER CHA;Lo;0;L;;;;;N;;;;;
+1787;KHMER LETTER CO;Lo;0;L;;;;;N;;;;;
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+178D;KHMER LETTER TTHO;Lo;0;L;;;;;N;;;;;
+178E;KHMER LETTER NNO;Lo;0;L;;;;;N;;;;;
+178F;KHMER LETTER TA;Lo;0;L;;;;;N;;;;;
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+1791;KHMER LETTER TO;Lo;0;L;;;;;N;;;;;
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+1794;KHMER LETTER BA;Lo;0;L;;;;;N;;;;;
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+1796;KHMER LETTER PO;Lo;0;L;;;;;N;;;;;
+1797;KHMER LETTER PHO;Lo;0;L;;;;;N;;;;;
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+179F;KHMER LETTER SA;Lo;0;L;;;;;N;;;;;
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+17A3;KHMER INDEPENDENT VOWEL QAQ;Lo;0;L;;;;;N;;;;;
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+17B3;KHMER INDEPENDENT VOWEL QAU;Lo;0;L;;;;;N;;;;;
+17B4;KHMER VOWEL INHERENT AQ;Mn;0;NSM;;;;;N;;;;;
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+17B7;KHMER VOWEL SIGN I;Mn;0;NSM;;;;;N;;;;;
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+17D6;KHMER SIGN CAMNUC PII KUUH;Po;0;L;;;;;N;;;;;
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+17D8;KHMER SIGN BEYYAL;Po;0;L;;;;;N;;;;;
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+17DC;KHMER SIGN AVAKRAHASANYA;Lo;0;L;;;;;N;;;;;
+17DD;KHMER SIGN ATTHACAN;Mn;230;NSM;;;;;N;;;;;
+17E0;KHMER DIGIT ZERO;Nd;0;L;;0;0;0;N;;;;;
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+1921;LIMBU VOWEL SIGN I;Mn;0;NSM;;;;;N;;;;;
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+1945;LIMBU QUESTION MARK;Po;0;ON;;;;;N;;;;;
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+1947;LIMBU DIGIT ONE;Nd;0;L;;1;1;1;N;;;;;
+1948;LIMBU DIGIT TWO;Nd;0;L;;2;2;2;N;;;;;
+1949;LIMBU DIGIT THREE;Nd;0;L;;3;3;3;N;;;;;
+194A;LIMBU DIGIT FOUR;Nd;0;L;;4;4;4;N;;;;;
+194B;LIMBU DIGIT FIVE;Nd;0;L;;5;5;5;N;;;;;
+194C;LIMBU DIGIT SIX;Nd;0;L;;6;6;6;N;;;;;
+194D;LIMBU DIGIT SEVEN;Nd;0;L;;7;7;7;N;;;;;
+194E;LIMBU DIGIT EIGHT;Nd;0;L;;8;8;8;N;;;;;
+194F;LIMBU DIGIT NINE;Nd;0;L;;9;9;9;N;;;;;
+1950;TAI LE LETTER KA;Lo;0;L;;;;;N;;;;;
+1951;TAI LE LETTER XA;Lo;0;L;;;;;N;;;;;
+1952;TAI LE LETTER NGA;Lo;0;L;;;;;N;;;;;
+1953;TAI LE LETTER TSA;Lo;0;L;;;;;N;;;;;
+1954;TAI LE LETTER SA;Lo;0;L;;;;;N;;;;;
+1955;TAI LE LETTER YA;Lo;0;L;;;;;N;;;;;
+1956;TAI LE LETTER TA;Lo;0;L;;;;;N;;;;;
+1957;TAI LE LETTER THA;Lo;0;L;;;;;N;;;;;
+1958;TAI LE LETTER LA;Lo;0;L;;;;;N;;;;;
+1959;TAI LE LETTER PA;Lo;0;L;;;;;N;;;;;
+195A;TAI LE LETTER PHA;Lo;0;L;;;;;N;;;;;
+195B;TAI LE LETTER MA;Lo;0;L;;;;;N;;;;;
+195C;TAI LE LETTER FA;Lo;0;L;;;;;N;;;;;
+195D;TAI LE LETTER VA;Lo;0;L;;;;;N;;;;;
+195E;TAI LE LETTER HA;Lo;0;L;;;;;N;;;;;
+195F;TAI LE LETTER QA;Lo;0;L;;;;;N;;;;;
+1960;TAI LE LETTER KHA;Lo;0;L;;;;;N;;;;;
+1961;TAI LE LETTER TSHA;Lo;0;L;;;;;N;;;;;
+1962;TAI LE LETTER NA;Lo;0;L;;;;;N;;;;;
+1963;TAI LE LETTER A;Lo;0;L;;;;;N;;;;;
+1964;TAI LE LETTER I;Lo;0;L;;;;;N;;;;;
+1965;TAI LE LETTER EE;Lo;0;L;;;;;N;;;;;
+1966;TAI LE LETTER EH;Lo;0;L;;;;;N;;;;;
+1967;TAI LE LETTER U;Lo;0;L;;;;;N;;;;;
+1968;TAI LE LETTER OO;Lo;0;L;;;;;N;;;;;
+1969;TAI LE LETTER O;Lo;0;L;;;;;N;;;;;
+196A;TAI LE LETTER UE;Lo;0;L;;;;;N;;;;;
+196B;TAI LE LETTER E;Lo;0;L;;;;;N;;;;;
+196C;TAI LE LETTER AUE;Lo;0;L;;;;;N;;;;;
+196D;TAI LE LETTER AI;Lo;0;L;;;;;N;;;;;
+1970;TAI LE LETTER TONE-2;Lo;0;L;;;;;N;;;;;
+1971;TAI LE LETTER TONE-3;Lo;0;L;;;;;N;;;;;
+1972;TAI LE LETTER TONE-4;Lo;0;L;;;;;N;;;;;
+1973;TAI LE LETTER TONE-5;Lo;0;L;;;;;N;;;;;
+1974;TAI LE LETTER TONE-6;Lo;0;L;;;;;N;;;;;
+1980;NEW TAI LUE LETTER HIGH QA;Lo;0;L;;;;;N;;;;;
+1981;NEW TAI LUE LETTER LOW QA;Lo;0;L;;;;;N;;;;;
+1982;NEW TAI LUE LETTER HIGH KA;Lo;0;L;;;;;N;;;;;
+1983;NEW TAI LUE LETTER HIGH XA;Lo;0;L;;;;;N;;;;;
+1984;NEW TAI LUE LETTER HIGH NGA;Lo;0;L;;;;;N;;;;;
+1985;NEW TAI LUE LETTER LOW KA;Lo;0;L;;;;;N;;;;;
+1986;NEW TAI LUE LETTER LOW XA;Lo;0;L;;;;;N;;;;;
+1987;NEW TAI LUE LETTER LOW NGA;Lo;0;L;;;;;N;;;;;
+1988;NEW TAI LUE LETTER HIGH TSA;Lo;0;L;;;;;N;;;;;
+1989;NEW TAI LUE LETTER HIGH SA;Lo;0;L;;;;;N;;;;;
+198A;NEW TAI LUE LETTER HIGH YA;Lo;0;L;;;;;N;;;;;
+198B;NEW TAI LUE LETTER LOW TSA;Lo;0;L;;;;;N;;;;;
+198C;NEW TAI LUE LETTER LOW SA;Lo;0;L;;;;;N;;;;;
+198D;NEW TAI LUE LETTER LOW YA;Lo;0;L;;;;;N;;;;;
+198E;NEW TAI LUE LETTER HIGH TA;Lo;0;L;;;;;N;;;;;
+198F;NEW TAI LUE LETTER HIGH THA;Lo;0;L;;;;;N;;;;;
+1990;NEW TAI LUE LETTER HIGH NA;Lo;0;L;;;;;N;;;;;
+1991;NEW TAI LUE LETTER LOW TA;Lo;0;L;;;;;N;;;;;
+1992;NEW TAI LUE LETTER LOW THA;Lo;0;L;;;;;N;;;;;
+1993;NEW TAI LUE LETTER LOW NA;Lo;0;L;;;;;N;;;;;
+1994;NEW TAI LUE LETTER HIGH PA;Lo;0;L;;;;;N;;;;;
+1995;NEW TAI LUE LETTER HIGH PHA;Lo;0;L;;;;;N;;;;;
+1996;NEW TAI LUE LETTER HIGH MA;Lo;0;L;;;;;N;;;;;
+1997;NEW TAI LUE LETTER LOW PA;Lo;0;L;;;;;N;;;;;
+1998;NEW TAI LUE LETTER LOW PHA;Lo;0;L;;;;;N;;;;;
+1999;NEW TAI LUE LETTER LOW MA;Lo;0;L;;;;;N;;;;;
+199A;NEW TAI LUE LETTER HIGH FA;Lo;0;L;;;;;N;;;;;
+199B;NEW TAI LUE LETTER HIGH VA;Lo;0;L;;;;;N;;;;;
+199C;NEW TAI LUE LETTER HIGH LA;Lo;0;L;;;;;N;;;;;
+199D;NEW TAI LUE LETTER LOW FA;Lo;0;L;;;;;N;;;;;
+199E;NEW TAI LUE LETTER LOW VA;Lo;0;L;;;;;N;;;;;
+199F;NEW TAI LUE LETTER LOW LA;Lo;0;L;;;;;N;;;;;
+19A0;NEW TAI LUE LETTER HIGH HA;Lo;0;L;;;;;N;;;;;
+19A1;NEW TAI LUE LETTER HIGH DA;Lo;0;L;;;;;N;;;;;
+19A2;NEW TAI LUE LETTER HIGH BA;Lo;0;L;;;;;N;;;;;
+19A3;NEW TAI LUE LETTER LOW HA;Lo;0;L;;;;;N;;;;;
+19A4;NEW TAI LUE LETTER LOW DA;Lo;0;L;;;;;N;;;;;
+19A5;NEW TAI LUE LETTER LOW BA;Lo;0;L;;;;;N;;;;;
+19A6;NEW TAI LUE LETTER HIGH KVA;Lo;0;L;;;;;N;;;;;
+19A7;NEW TAI LUE LETTER HIGH XVA;Lo;0;L;;;;;N;;;;;
+19A8;NEW TAI LUE LETTER LOW KVA;Lo;0;L;;;;;N;;;;;
+19A9;NEW TAI LUE LETTER LOW XVA;Lo;0;L;;;;;N;;;;;
+19AA;NEW TAI LUE LETTER HIGH SUA;Lo;0;L;;;;;N;;;;;
+19AB;NEW TAI LUE LETTER LOW SUA;Lo;0;L;;;;;N;;;;;
+19B0;NEW TAI LUE VOWEL SIGN VOWEL SHORTENER;Mc;0;L;;;;;N;;;;;
+19B1;NEW TAI LUE VOWEL SIGN AA;Mc;0;L;;;;;N;;;;;
+19B2;NEW TAI LUE VOWEL SIGN II;Mc;0;L;;;;;N;;;;;
+19B3;NEW TAI LUE VOWEL SIGN U;Mc;0;L;;;;;N;;;;;
+19B4;NEW TAI LUE VOWEL SIGN UU;Mc;0;L;;;;;N;;;;;
+19B5;NEW TAI LUE VOWEL SIGN E;Mc;0;L;;;;;N;;;;;
+19B6;NEW TAI LUE VOWEL SIGN AE;Mc;0;L;;;;;N;;;;;
+19B7;NEW TAI LUE VOWEL SIGN O;Mc;0;L;;;;;N;;;;;
+19B8;NEW TAI LUE VOWEL SIGN OA;Mc;0;L;;;;;N;;;;;
+19B9;NEW TAI LUE VOWEL SIGN UE;Mc;0;L;;;;;N;;;;;
+19BA;NEW TAI LUE VOWEL SIGN AY;Mc;0;L;;;;;N;;;;;
+19BB;NEW TAI LUE VOWEL SIGN AAY;Mc;0;L;;;;;N;;;;;
+19BC;NEW TAI LUE VOWEL SIGN UY;Mc;0;L;;;;;N;;;;;
+19BD;NEW TAI LUE VOWEL SIGN OY;Mc;0;L;;;;;N;;;;;
+19BE;NEW TAI LUE VOWEL SIGN OAY;Mc;0;L;;;;;N;;;;;
+19BF;NEW TAI LUE VOWEL SIGN UEY;Mc;0;L;;;;;N;;;;;
+19C0;NEW TAI LUE VOWEL SIGN IY;Mc;0;L;;;;;N;;;;;
+19C1;NEW TAI LUE LETTER FINAL V;Lo;0;L;;;;;N;;;;;
+19C2;NEW TAI LUE LETTER FINAL NG;Lo;0;L;;;;;N;;;;;
+19C3;NEW TAI LUE LETTER FINAL N;Lo;0;L;;;;;N;;;;;
+19C4;NEW TAI LUE LETTER FINAL M;Lo;0;L;;;;;N;;;;;
+19C5;NEW TAI LUE LETTER FINAL K;Lo;0;L;;;;;N;;;;;
+19C6;NEW TAI LUE LETTER FINAL D;Lo;0;L;;;;;N;;;;;
+19C7;NEW TAI LUE LETTER FINAL B;Lo;0;L;;;;;N;;;;;
+19C8;NEW TAI LUE TONE MARK-1;Mc;0;L;;;;;N;;;;;
+19C9;NEW TAI LUE TONE MARK-2;Mc;0;L;;;;;N;;;;;
+19D0;NEW TAI LUE DIGIT ZERO;Nd;0;L;;0;0;0;N;;;;;
+19D1;NEW TAI LUE DIGIT ONE;Nd;0;L;;1;1;1;N;;;;;
+19D2;NEW TAI LUE DIGIT TWO;Nd;0;L;;2;2;2;N;;;;;
+19D3;NEW TAI LUE DIGIT THREE;Nd;0;L;;3;3;3;N;;;;;
+19D4;NEW TAI LUE DIGIT FOUR;Nd;0;L;;4;4;4;N;;;;;
+19D5;NEW TAI LUE DIGIT FIVE;Nd;0;L;;5;5;5;N;;;;;
+19D6;NEW TAI LUE DIGIT SIX;Nd;0;L;;6;6;6;N;;;;;
+19D7;NEW TAI LUE DIGIT SEVEN;Nd;0;L;;7;7;7;N;;;;;
+19D8;NEW TAI LUE DIGIT EIGHT;Nd;0;L;;8;8;8;N;;;;;
+19D9;NEW TAI LUE DIGIT NINE;Nd;0;L;;9;9;9;N;;;;;
+19DA;NEW TAI LUE THAM DIGIT ONE;No;0;L;;;1;1;N;;;;;
+19DE;NEW TAI LUE SIGN LAE;So;0;ON;;;;;N;;;;;
+19DF;NEW TAI LUE SIGN LAEV;So;0;ON;;;;;N;;;;;
+19E0;KHMER SYMBOL PATHAMASAT;So;0;ON;;;;;N;;;;;
+19E1;KHMER SYMBOL MUOY KOET;So;0;ON;;;;;N;;;;;
+19E2;KHMER SYMBOL PII KOET;So;0;ON;;;;;N;;;;;
+19E3;KHMER SYMBOL BEI KOET;So;0;ON;;;;;N;;;;;
+19E4;KHMER SYMBOL BUON KOET;So;0;ON;;;;;N;;;;;
+19E5;KHMER SYMBOL PRAM KOET;So;0;ON;;;;;N;;;;;
+19E6;KHMER SYMBOL PRAM-MUOY KOET;So;0;ON;;;;;N;;;;;
+19E7;KHMER SYMBOL PRAM-PII KOET;So;0;ON;;;;;N;;;;;
+19E8;KHMER SYMBOL PRAM-BEI KOET;So;0;ON;;;;;N;;;;;
+19E9;KHMER SYMBOL PRAM-BUON KOET;So;0;ON;;;;;N;;;;;
+19EA;KHMER SYMBOL DAP KOET;So;0;ON;;;;;N;;;;;
+19EB;KHMER SYMBOL DAP-MUOY KOET;So;0;ON;;;;;N;;;;;
+19EC;KHMER SYMBOL DAP-PII KOET;So;0;ON;;;;;N;;;;;
+19ED;KHMER SYMBOL DAP-BEI KOET;So;0;ON;;;;;N;;;;;
+19EE;KHMER SYMBOL DAP-BUON KOET;So;0;ON;;;;;N;;;;;
+19EF;KHMER SYMBOL DAP-PRAM KOET;So;0;ON;;;;;N;;;;;
+19F0;KHMER SYMBOL TUTEYASAT;So;0;ON;;;;;N;;;;;
+19F1;KHMER SYMBOL MUOY ROC;So;0;ON;;;;;N;;;;;
+19F2;KHMER SYMBOL PII ROC;So;0;ON;;;;;N;;;;;
+19F3;KHMER SYMBOL BEI ROC;So;0;ON;;;;;N;;;;;
+19F4;KHMER SYMBOL BUON ROC;So;0;ON;;;;;N;;;;;
+19F5;KHMER SYMBOL PRAM ROC;So;0;ON;;;;;N;;;;;
+19F6;KHMER SYMBOL PRAM-MUOY ROC;So;0;ON;;;;;N;;;;;
+19F7;KHMER SYMBOL PRAM-PII ROC;So;0;ON;;;;;N;;;;;
+19F8;KHMER SYMBOL PRAM-BEI ROC;So;0;ON;;;;;N;;;;;
+19F9;KHMER SYMBOL PRAM-BUON ROC;So;0;ON;;;;;N;;;;;
+19FA;KHMER SYMBOL DAP ROC;So;0;ON;;;;;N;;;;;
+19FB;KHMER SYMBOL DAP-MUOY ROC;So;0;ON;;;;;N;;;;;
+19FC;KHMER SYMBOL DAP-PII ROC;So;0;ON;;;;;N;;;;;
+19FD;KHMER SYMBOL DAP-BEI ROC;So;0;ON;;;;;N;;;;;
+19FE;KHMER SYMBOL DAP-BUON ROC;So;0;ON;;;;;N;;;;;
+19FF;KHMER SYMBOL DAP-PRAM ROC;So;0;ON;;;;;N;;;;;
+1A00;BUGINESE LETTER KA;Lo;0;L;;;;;N;;;;;
+1A01;BUGINESE LETTER GA;Lo;0;L;;;;;N;;;;;
+1A02;BUGINESE LETTER NGA;Lo;0;L;;;;;N;;;;;
+1A03;BUGINESE LETTER NGKA;Lo;0;L;;;;;N;;;;;
+1A04;BUGINESE LETTER PA;Lo;0;L;;;;;N;;;;;
+1A05;BUGINESE LETTER BA;Lo;0;L;;;;;N;;;;;
+1A06;BUGINESE LETTER MA;Lo;0;L;;;;;N;;;;;
+1A07;BUGINESE LETTER MPA;Lo;0;L;;;;;N;;;;;
+1A08;BUGINESE LETTER TA;Lo;0;L;;;;;N;;;;;
+1A09;BUGINESE LETTER DA;Lo;0;L;;;;;N;;;;;
+1A0A;BUGINESE LETTER NA;Lo;0;L;;;;;N;;;;;
+1A0B;BUGINESE LETTER NRA;Lo;0;L;;;;;N;;;;;
+1A0C;BUGINESE LETTER CA;Lo;0;L;;;;;N;;;;;
+1A0D;BUGINESE LETTER JA;Lo;0;L;;;;;N;;;;;
+1A0E;BUGINESE LETTER NYA;Lo;0;L;;;;;N;;;;;
+1A0F;BUGINESE LETTER NYCA;Lo;0;L;;;;;N;;;;;
+1A10;BUGINESE LETTER YA;Lo;0;L;;;;;N;;;;;
+1A11;BUGINESE LETTER RA;Lo;0;L;;;;;N;;;;;
+1A12;BUGINESE LETTER LA;Lo;0;L;;;;;N;;;;;
+1A13;BUGINESE LETTER VA;Lo;0;L;;;;;N;;;;;
+1A14;BUGINESE LETTER SA;Lo;0;L;;;;;N;;;;;
+1A15;BUGINESE LETTER A;Lo;0;L;;;;;N;;;;;
+1A16;BUGINESE LETTER HA;Lo;0;L;;;;;N;;;;;
+1A17;BUGINESE VOWEL SIGN I;Mn;230;NSM;;;;;N;;;;;
+1A18;BUGINESE VOWEL SIGN U;Mn;220;NSM;;;;;N;;;;;
+1A19;BUGINESE VOWEL SIGN E;Mc;0;L;;;;;N;;;;;
+1A1A;BUGINESE VOWEL SIGN O;Mc;0;L;;;;;N;;;;;
+1A1B;BUGINESE VOWEL SIGN AE;Mc;0;L;;;;;N;;;;;
+1A1E;BUGINESE PALLAWA;Po;0;L;;;;;N;;;;;
+1A1F;BUGINESE END OF SECTION;Po;0;L;;;;;N;;;;;
+1A20;TAI THAM LETTER HIGH KA;Lo;0;L;;;;;N;;;;;
+1A21;TAI THAM LETTER HIGH KHA;Lo;0;L;;;;;N;;;;;
+1A22;TAI THAM LETTER HIGH KXA;Lo;0;L;;;;;N;;;;;
+1A23;TAI THAM LETTER LOW KA;Lo;0;L;;;;;N;;;;;
+1A24;TAI THAM LETTER LOW KXA;Lo;0;L;;;;;N;;;;;
+1A25;TAI THAM LETTER LOW KHA;Lo;0;L;;;;;N;;;;;
+1A26;TAI THAM LETTER NGA;Lo;0;L;;;;;N;;;;;
+1A27;TAI THAM LETTER HIGH CA;Lo;0;L;;;;;N;;;;;
+1A28;TAI THAM LETTER HIGH CHA;Lo;0;L;;;;;N;;;;;
+1A29;TAI THAM LETTER LOW CA;Lo;0;L;;;;;N;;;;;
+1A2A;TAI THAM LETTER LOW SA;Lo;0;L;;;;;N;;;;;
+1A2B;TAI THAM LETTER LOW CHA;Lo;0;L;;;;;N;;;;;
+1A2C;TAI THAM LETTER NYA;Lo;0;L;;;;;N;;;;;
+1A2D;TAI THAM LETTER RATA;Lo;0;L;;;;;N;;;;;
+1A2E;TAI THAM LETTER HIGH RATHA;Lo;0;L;;;;;N;;;;;
+1A2F;TAI THAM LETTER DA;Lo;0;L;;;;;N;;;;;
+1A30;TAI THAM LETTER LOW RATHA;Lo;0;L;;;;;N;;;;;
+1A31;TAI THAM LETTER RANA;Lo;0;L;;;;;N;;;;;
+1A32;TAI THAM LETTER HIGH TA;Lo;0;L;;;;;N;;;;;
+1A33;TAI THAM LETTER HIGH THA;Lo;0;L;;;;;N;;;;;
+1A34;TAI THAM LETTER LOW TA;Lo;0;L;;;;;N;;;;;
+1A35;TAI THAM LETTER LOW THA;Lo;0;L;;;;;N;;;;;
+1A36;TAI THAM LETTER NA;Lo;0;L;;;;;N;;;;;
+1A37;TAI THAM LETTER BA;Lo;0;L;;;;;N;;;;;
+1A38;TAI THAM LETTER HIGH PA;Lo;0;L;;;;;N;;;;;
+1A39;TAI THAM LETTER HIGH PHA;Lo;0;L;;;;;N;;;;;
+1A3A;TAI THAM LETTER HIGH FA;Lo;0;L;;;;;N;;;;;
+1A3B;TAI THAM LETTER LOW PA;Lo;0;L;;;;;N;;;;;
+1A3C;TAI THAM LETTER LOW FA;Lo;0;L;;;;;N;;;;;
+1A3D;TAI THAM LETTER LOW PHA;Lo;0;L;;;;;N;;;;;
+1A3E;TAI THAM LETTER MA;Lo;0;L;;;;;N;;;;;
+1A3F;TAI THAM LETTER LOW YA;Lo;0;L;;;;;N;;;;;
+1A40;TAI THAM LETTER HIGH YA;Lo;0;L;;;;;N;;;;;
+1A41;TAI THAM LETTER RA;Lo;0;L;;;;;N;;;;;
+1A42;TAI THAM LETTER RUE;Lo;0;L;;;;;N;;;;;
+1A43;TAI THAM LETTER LA;Lo;0;L;;;;;N;;;;;
+1A44;TAI THAM LETTER LUE;Lo;0;L;;;;;N;;;;;
+1A45;TAI THAM LETTER WA;Lo;0;L;;;;;N;;;;;
+1A46;TAI THAM LETTER HIGH SHA;Lo;0;L;;;;;N;;;;;
+1A47;TAI THAM LETTER HIGH SSA;Lo;0;L;;;;;N;;;;;
+1A48;TAI THAM LETTER HIGH SA;Lo;0;L;;;;;N;;;;;
+1A49;TAI THAM LETTER HIGH HA;Lo;0;L;;;;;N;;;;;
+1A4A;TAI THAM LETTER LLA;Lo;0;L;;;;;N;;;;;
+1A4B;TAI THAM LETTER A;Lo;0;L;;;;;N;;;;;
+1A4C;TAI THAM LETTER LOW HA;Lo;0;L;;;;;N;;;;;
+1A4D;TAI THAM LETTER I;Lo;0;L;;;;;N;;;;;
+1A4E;TAI THAM LETTER II;Lo;0;L;;;;;N;;;;;
+1A4F;TAI THAM LETTER U;Lo;0;L;;;;;N;;;;;
+1A50;TAI THAM LETTER UU;Lo;0;L;;;;;N;;;;;
+1A51;TAI THAM LETTER EE;Lo;0;L;;;;;N;;;;;
+1A52;TAI THAM LETTER OO;Lo;0;L;;;;;N;;;;;
+1A53;TAI THAM LETTER LAE;Lo;0;L;;;;;N;;;;;
+1A54;TAI THAM LETTER GREAT SA;Lo;0;L;;;;;N;;;;;
+1A55;TAI THAM CONSONANT SIGN MEDIAL RA;Mc;0;L;;;;;N;;;;;
+1A56;TAI THAM CONSONANT SIGN MEDIAL LA;Mn;0;NSM;;;;;N;;;;;
+1A57;TAI THAM CONSONANT SIGN LA TANG LAI;Mc;0;L;;;;;N;;;;;
+1A58;TAI THAM SIGN MAI KANG LAI;Mn;0;NSM;;;;;N;;;;;
+1A59;TAI THAM CONSONANT SIGN FINAL NGA;Mn;0;NSM;;;;;N;;;;;
+1A5A;TAI THAM CONSONANT SIGN LOW PA;Mn;0;NSM;;;;;N;;;;;
+1A5B;TAI THAM CONSONANT SIGN HIGH RATHA OR LOW PA;Mn;0;NSM;;;;;N;;;;;
+1A5C;TAI THAM CONSONANT SIGN MA;Mn;0;NSM;;;;;N;;;;;
+1A5D;TAI THAM CONSONANT SIGN BA;Mn;0;NSM;;;;;N;;;;;
+1A5E;TAI THAM CONSONANT SIGN SA;Mn;0;NSM;;;;;N;;;;;
+1A60;TAI THAM SIGN SAKOT;Mn;9;NSM;;;;;N;;;;;
+1A61;TAI THAM VOWEL SIGN A;Mc;0;L;;;;;N;;;;;
+1A62;TAI THAM VOWEL SIGN MAI SAT;Mn;0;NSM;;;;;N;;;;;
+1A63;TAI THAM VOWEL SIGN AA;Mc;0;L;;;;;N;;;;;
+1A64;TAI THAM VOWEL SIGN TALL AA;Mc;0;L;;;;;N;;;;;
+1A65;TAI THAM VOWEL SIGN I;Mn;0;NSM;;;;;N;;;;;
+1A66;TAI THAM VOWEL SIGN II;Mn;0;NSM;;;;;N;;;;;
+1A67;TAI THAM VOWEL SIGN UE;Mn;0;NSM;;;;;N;;;;;
+1A68;TAI THAM VOWEL SIGN UUE;Mn;0;NSM;;;;;N;;;;;
+1A69;TAI THAM VOWEL SIGN U;Mn;0;NSM;;;;;N;;;;;
+1A6A;TAI THAM VOWEL SIGN UU;Mn;0;NSM;;;;;N;;;;;
+1A6B;TAI THAM VOWEL SIGN O;Mn;0;NSM;;;;;N;;;;;
+1A6C;TAI THAM VOWEL SIGN OA BELOW;Mn;0;NSM;;;;;N;;;;;
+1A6D;TAI THAM VOWEL SIGN OY;Mc;0;L;;;;;N;;;;;
+1A6E;TAI THAM VOWEL SIGN E;Mc;0;L;;;;;N;;;;;
+1A6F;TAI THAM VOWEL SIGN AE;Mc;0;L;;;;;N;;;;;
+1A70;TAI THAM VOWEL SIGN OO;Mc;0;L;;;;;N;;;;;
+1A71;TAI THAM VOWEL SIGN AI;Mc;0;L;;;;;N;;;;;
+1A72;TAI THAM VOWEL SIGN THAM AI;Mc;0;L;;;;;N;;;;;
+1A73;TAI THAM VOWEL SIGN OA ABOVE;Mn;0;NSM;;;;;N;;;;;
+1A74;TAI THAM SIGN MAI KANG;Mn;0;NSM;;;;;N;;;;;
+1A75;TAI THAM SIGN TONE-1;Mn;230;NSM;;;;;N;;;;;
+1A76;TAI THAM SIGN TONE-2;Mn;230;NSM;;;;;N;;;;;
+1A77;TAI THAM SIGN KHUEN TONE-3;Mn;230;NSM;;;;;N;;;;;
+1A78;TAI THAM SIGN KHUEN TONE-4;Mn;230;NSM;;;;;N;;;;;
+1A79;TAI THAM SIGN KHUEN TONE-5;Mn;230;NSM;;;;;N;;;;;
+1A7A;TAI THAM SIGN RA HAAM;Mn;230;NSM;;;;;N;;;;;
+1A7B;TAI THAM SIGN MAI SAM;Mn;230;NSM;;;;;N;;;;;
+1A7C;TAI THAM SIGN KHUEN-LUE KARAN;Mn;230;NSM;;;;;N;;;;;
+1A7F;TAI THAM COMBINING CRYPTOGRAMMIC DOT;Mn;220;NSM;;;;;N;;;;;
+1A80;TAI THAM HORA DIGIT ZERO;Nd;0;L;;0;0;0;N;;;;;
+1A81;TAI THAM HORA DIGIT ONE;Nd;0;L;;1;1;1;N;;;;;
+1A82;TAI THAM HORA DIGIT TWO;Nd;0;L;;2;2;2;N;;;;;
+1A83;TAI THAM HORA DIGIT THREE;Nd;0;L;;3;3;3;N;;;;;
+1A84;TAI THAM HORA DIGIT FOUR;Nd;0;L;;4;4;4;N;;;;;
+1A85;TAI THAM HORA DIGIT FIVE;Nd;0;L;;5;5;5;N;;;;;
+1A86;TAI THAM HORA DIGIT SIX;Nd;0;L;;6;6;6;N;;;;;
+1A87;TAI THAM HORA DIGIT SEVEN;Nd;0;L;;7;7;7;N;;;;;
+1A88;TAI THAM HORA DIGIT EIGHT;Nd;0;L;;8;8;8;N;;;;;
+1A89;TAI THAM HORA DIGIT NINE;Nd;0;L;;9;9;9;N;;;;;
+1A90;TAI THAM THAM DIGIT ZERO;Nd;0;L;;0;0;0;N;;;;;
+1A91;TAI THAM THAM DIGIT ONE;Nd;0;L;;1;1;1;N;;;;;
+1A92;TAI THAM THAM DIGIT TWO;Nd;0;L;;2;2;2;N;;;;;
+1A93;TAI THAM THAM DIGIT THREE;Nd;0;L;;3;3;3;N;;;;;
+1A94;TAI THAM THAM DIGIT FOUR;Nd;0;L;;4;4;4;N;;;;;
+1A95;TAI THAM THAM DIGIT FIVE;Nd;0;L;;5;5;5;N;;;;;
+1A96;TAI THAM THAM DIGIT SIX;Nd;0;L;;6;6;6;N;;;;;
+1A97;TAI THAM THAM DIGIT SEVEN;Nd;0;L;;7;7;7;N;;;;;
+1A98;TAI THAM THAM DIGIT EIGHT;Nd;0;L;;8;8;8;N;;;;;
+1A99;TAI THAM THAM DIGIT NINE;Nd;0;L;;9;9;9;N;;;;;
+1AA0;TAI THAM SIGN WIANG;Po;0;L;;;;;N;;;;;
+1AA1;TAI THAM SIGN WIANGWAAK;Po;0;L;;;;;N;;;;;
+1AA2;TAI THAM SIGN SAWAN;Po;0;L;;;;;N;;;;;
+1AA3;TAI THAM SIGN KEOW;Po;0;L;;;;;N;;;;;
+1AA4;TAI THAM SIGN HOY;Po;0;L;;;;;N;;;;;
+1AA5;TAI THAM SIGN DOKMAI;Po;0;L;;;;;N;;;;;
+1AA6;TAI THAM SIGN REVERSED ROTATED RANA;Po;0;L;;;;;N;;;;;
+1AA7;TAI THAM SIGN MAI YAMOK;Lm;0;L;;;;;N;;;;;
+1AA8;TAI THAM SIGN KAAN;Po;0;L;;;;;N;;;;;
+1AA9;TAI THAM SIGN KAANKUU;Po;0;L;;;;;N;;;;;
+1AAA;TAI THAM SIGN SATKAAN;Po;0;L;;;;;N;;;;;
+1AAB;TAI THAM SIGN SATKAANKUU;Po;0;L;;;;;N;;;;;
+1AAC;TAI THAM SIGN HANG;Po;0;L;;;;;N;;;;;
+1AAD;TAI THAM SIGN CAANG;Po;0;L;;;;;N;;;;;
+1B00;BALINESE SIGN ULU RICEM;Mn;0;NSM;;;;;N;;;;;
+1B01;BALINESE SIGN ULU CANDRA;Mn;0;NSM;;;;;N;;;;;
+1B02;BALINESE SIGN CECEK;Mn;0;NSM;;;;;N;;;;;
+1B03;BALINESE SIGN SURANG;Mn;0;NSM;;;;;N;;;;;
+1B04;BALINESE SIGN BISAH;Mc;0;L;;;;;N;;;;;
+1B05;BALINESE LETTER AKARA;Lo;0;L;;;;;N;;;;;
+1B06;BALINESE LETTER AKARA TEDUNG;Lo;0;L;1B05 1B35;;;;N;;;;;
+1B07;BALINESE LETTER IKARA;Lo;0;L;;;;;N;;;;;
+1B08;BALINESE LETTER IKARA TEDUNG;Lo;0;L;1B07 1B35;;;;N;;;;;
+1B09;BALINESE LETTER UKARA;Lo;0;L;;;;;N;;;;;
+1B0A;BALINESE LETTER UKARA TEDUNG;Lo;0;L;1B09 1B35;;;;N;;;;;
+1B0B;BALINESE LETTER RA REPA;Lo;0;L;;;;;N;;;;;
+1B0C;BALINESE LETTER RA REPA TEDUNG;Lo;0;L;1B0B 1B35;;;;N;;;;;
+1B0D;BALINESE LETTER LA LENGA;Lo;0;L;;;;;N;;;;;
+1B0E;BALINESE LETTER LA LENGA TEDUNG;Lo;0;L;1B0D 1B35;;;;N;;;;;
+1B0F;BALINESE LETTER EKARA;Lo;0;L;;;;;N;;;;;
+1B10;BALINESE LETTER AIKARA;Lo;0;L;;;;;N;;;;;
+1B11;BALINESE LETTER OKARA;Lo;0;L;;;;;N;;;;;
+1B12;BALINESE LETTER OKARA TEDUNG;Lo;0;L;1B11 1B35;;;;N;;;;;
+1B13;BALINESE LETTER KA;Lo;0;L;;;;;N;;;;;
+1B14;BALINESE LETTER KA MAHAPRANA;Lo;0;L;;;;;N;;;;;
+1B15;BALINESE LETTER GA;Lo;0;L;;;;;N;;;;;
+1B16;BALINESE LETTER GA GORA;Lo;0;L;;;;;N;;;;;
+1B17;BALINESE LETTER NGA;Lo;0;L;;;;;N;;;;;
+1B18;BALINESE LETTER CA;Lo;0;L;;;;;N;;;;;
+1B19;BALINESE LETTER CA LACA;Lo;0;L;;;;;N;;;;;
+1B1A;BALINESE LETTER JA;Lo;0;L;;;;;N;;;;;
+1B1B;BALINESE LETTER JA JERA;Lo;0;L;;;;;N;;;;;
+1B1C;BALINESE LETTER NYA;Lo;0;L;;;;;N;;;;;
+1B1D;BALINESE LETTER TA LATIK;Lo;0;L;;;;;N;;;;;
+1B1E;BALINESE LETTER TA MURDA MAHAPRANA;Lo;0;L;;;;;N;;;;;
+1B1F;BALINESE LETTER DA MURDA ALPAPRANA;Lo;0;L;;;;;N;;;;;
+1B20;BALINESE LETTER DA MURDA MAHAPRANA;Lo;0;L;;;;;N;;;;;
+1B21;BALINESE LETTER NA RAMBAT;Lo;0;L;;;;;N;;;;;
+1B22;BALINESE LETTER TA;Lo;0;L;;;;;N;;;;;
+1B23;BALINESE LETTER TA TAWA;Lo;0;L;;;;;N;;;;;
+1B24;BALINESE LETTER DA;Lo;0;L;;;;;N;;;;;
+1B25;BALINESE LETTER DA MADU;Lo;0;L;;;;;N;;;;;
+1B26;BALINESE LETTER NA;Lo;0;L;;;;;N;;;;;
+1B27;BALINESE LETTER PA;Lo;0;L;;;;;N;;;;;
+1B28;BALINESE LETTER PA KAPAL;Lo;0;L;;;;;N;;;;;
+1B29;BALINESE LETTER BA;Lo;0;L;;;;;N;;;;;
+1B2A;BALINESE LETTER BA KEMBANG;Lo;0;L;;;;;N;;;;;
+1B2B;BALINESE LETTER MA;Lo;0;L;;;;;N;;;;;
+1B2C;BALINESE LETTER YA;Lo;0;L;;;;;N;;;;;
+1B2D;BALINESE LETTER RA;Lo;0;L;;;;;N;;;;;
+1B2E;BALINESE LETTER LA;Lo;0;L;;;;;N;;;;;
+1B2F;BALINESE LETTER WA;Lo;0;L;;;;;N;;;;;
+1B30;BALINESE LETTER SA SAGA;Lo;0;L;;;;;N;;;;;
+1B31;BALINESE LETTER SA SAPA;Lo;0;L;;;;;N;;;;;
+1B32;BALINESE LETTER SA;Lo;0;L;;;;;N;;;;;
+1B33;BALINESE LETTER HA;Lo;0;L;;;;;N;;;;;
+1B34;BALINESE SIGN REREKAN;Mn;7;NSM;;;;;N;;;;;
+1B35;BALINESE VOWEL SIGN TEDUNG;Mc;0;L;;;;;N;;;;;
+1B36;BALINESE VOWEL SIGN ULU;Mn;0;NSM;;;;;N;;;;;
+1B37;BALINESE VOWEL SIGN ULU SARI;Mn;0;NSM;;;;;N;;;;;
+1B38;BALINESE VOWEL SIGN SUKU;Mn;0;NSM;;;;;N;;;;;
+1B39;BALINESE VOWEL SIGN SUKU ILUT;Mn;0;NSM;;;;;N;;;;;
+1B3A;BALINESE VOWEL SIGN RA REPA;Mn;0;NSM;;;;;N;;;;;
+1B3B;BALINESE VOWEL SIGN RA REPA TEDUNG;Mc;0;L;1B3A 1B35;;;;N;;;;;
+1B3C;BALINESE VOWEL SIGN LA LENGA;Mn;0;NSM;;;;;N;;;;;
+1B3D;BALINESE VOWEL SIGN LA LENGA TEDUNG;Mc;0;L;1B3C 1B35;;;;N;;;;;
+1B3E;BALINESE VOWEL SIGN TALING;Mc;0;L;;;;;N;;;;;
+1B3F;BALINESE VOWEL SIGN TALING REPA;Mc;0;L;;;;;N;;;;;
+1B40;BALINESE VOWEL SIGN TALING TEDUNG;Mc;0;L;1B3E 1B35;;;;N;;;;;
+1B41;BALINESE VOWEL SIGN TALING REPA TEDUNG;Mc;0;L;1B3F 1B35;;;;N;;;;;
+1B42;BALINESE VOWEL SIGN PEPET;Mn;0;NSM;;;;;N;;;;;
+1B43;BALINESE VOWEL SIGN PEPET TEDUNG;Mc;0;L;1B42 1B35;;;;N;;;;;
+1B44;BALINESE ADEG ADEG;Mc;9;L;;;;;N;;;;;
+1B45;BALINESE LETTER KAF SASAK;Lo;0;L;;;;;N;;;;;
+1B46;BALINESE LETTER KHOT SASAK;Lo;0;L;;;;;N;;;;;
+1B47;BALINESE LETTER TZIR SASAK;Lo;0;L;;;;;N;;;;;
+1B48;BALINESE LETTER EF SASAK;Lo;0;L;;;;;N;;;;;
+1B49;BALINESE LETTER VE SASAK;Lo;0;L;;;;;N;;;;;
+1B4A;BALINESE LETTER ZAL SASAK;Lo;0;L;;;;;N;;;;;
+1B4B;BALINESE LETTER ASYURA SASAK;Lo;0;L;;;;;N;;;;;
+1B50;BALINESE DIGIT ZERO;Nd;0;L;;0;0;0;N;;;;;
+1B51;BALINESE DIGIT ONE;Nd;0;L;;1;1;1;N;;;;;
+1B52;BALINESE DIGIT TWO;Nd;0;L;;2;2;2;N;;;;;
+1B53;BALINESE DIGIT THREE;Nd;0;L;;3;3;3;N;;;;;
+1B54;BALINESE DIGIT FOUR;Nd;0;L;;4;4;4;N;;;;;
+1B55;BALINESE DIGIT FIVE;Nd;0;L;;5;5;5;N;;;;;
+1B56;BALINESE DIGIT SIX;Nd;0;L;;6;6;6;N;;;;;
+1B57;BALINESE DIGIT SEVEN;Nd;0;L;;7;7;7;N;;;;;
+1B58;BALINESE DIGIT EIGHT;Nd;0;L;;8;8;8;N;;;;;
+1B59;BALINESE DIGIT NINE;Nd;0;L;;9;9;9;N;;;;;
+1B5A;BALINESE PANTI;Po;0;L;;;;;N;;;;;
+1B5B;BALINESE PAMADA;Po;0;L;;;;;N;;;;;
+1B5C;BALINESE WINDU;Po;0;L;;;;;N;;;;;
+1B5D;BALINESE CARIK PAMUNGKAH;Po;0;L;;;;;N;;;;;
+1B5E;BALINESE CARIK SIKI;Po;0;L;;;;;N;;;;;
+1B5F;BALINESE CARIK PAREREN;Po;0;L;;;;;N;;;;;
+1B60;BALINESE PAMENENG;Po;0;L;;;;;N;;;;;
+1B61;BALINESE MUSICAL SYMBOL DONG;So;0;L;;;;;N;;;;;
+1B62;BALINESE MUSICAL SYMBOL DENG;So;0;L;;;;;N;;;;;
+1B63;BALINESE MUSICAL SYMBOL DUNG;So;0;L;;;;;N;;;;;
+1B64;BALINESE MUSICAL SYMBOL DANG;So;0;L;;;;;N;;;;;
+1B65;BALINESE MUSICAL SYMBOL DANG SURANG;So;0;L;;;;;N;;;;;
+1B66;BALINESE MUSICAL SYMBOL DING;So;0;L;;;;;N;;;;;
+1B67;BALINESE MUSICAL SYMBOL DAENG;So;0;L;;;;;N;;;;;
+1B68;BALINESE MUSICAL SYMBOL DEUNG;So;0;L;;;;;N;;;;;
+1B69;BALINESE MUSICAL SYMBOL DAING;So;0;L;;;;;N;;;;;
+1B6A;BALINESE MUSICAL SYMBOL DANG GEDE;So;0;L;;;;;N;;;;;
+1B6B;BALINESE MUSICAL SYMBOL COMBINING TEGEH;Mn;230;NSM;;;;;N;;;;;
+1B6C;BALINESE MUSICAL SYMBOL COMBINING ENDEP;Mn;220;NSM;;;;;N;;;;;
+1B6D;BALINESE MUSICAL SYMBOL COMBINING KEMPUL;Mn;230;NSM;;;;;N;;;;;
+1B6E;BALINESE MUSICAL SYMBOL COMBINING KEMPLI;Mn;230;NSM;;;;;N;;;;;
+1B6F;BALINESE MUSICAL SYMBOL COMBINING JEGOGAN;Mn;230;NSM;;;;;N;;;;;
+1B70;BALINESE MUSICAL SYMBOL COMBINING KEMPUL WITH JEGOGAN;Mn;230;NSM;;;;;N;;;;;
+1B71;BALINESE MUSICAL SYMBOL COMBINING KEMPLI WITH JEGOGAN;Mn;230;NSM;;;;;N;;;;;
+1B72;BALINESE MUSICAL SYMBOL COMBINING BENDE;Mn;230;NSM;;;;;N;;;;;
+1B73;BALINESE MUSICAL SYMBOL COMBINING GONG;Mn;230;NSM;;;;;N;;;;;
+1B74;BALINESE MUSICAL SYMBOL RIGHT-HAND OPEN DUG;So;0;L;;;;;N;;;;;
+1B75;BALINESE MUSICAL SYMBOL RIGHT-HAND OPEN DAG;So;0;L;;;;;N;;;;;
+1B76;BALINESE MUSICAL SYMBOL RIGHT-HAND CLOSED TUK;So;0;L;;;;;N;;;;;
+1B77;BALINESE MUSICAL SYMBOL RIGHT-HAND CLOSED TAK;So;0;L;;;;;N;;;;;
+1B78;BALINESE MUSICAL SYMBOL LEFT-HAND OPEN PANG;So;0;L;;;;;N;;;;;
+1B79;BALINESE MUSICAL SYMBOL LEFT-HAND OPEN PUNG;So;0;L;;;;;N;;;;;
+1B7A;BALINESE MUSICAL SYMBOL LEFT-HAND CLOSED PLAK;So;0;L;;;;;N;;;;;
+1B7B;BALINESE MUSICAL SYMBOL LEFT-HAND CLOSED PLUK;So;0;L;;;;;N;;;;;
+1B7C;BALINESE MUSICAL SYMBOL LEFT-HAND OPEN PING;So;0;L;;;;;N;;;;;
+1B80;SUNDANESE SIGN PANYECEK;Mn;0;NSM;;;;;N;;;;;
+1B81;SUNDANESE SIGN PANGLAYAR;Mn;0;NSM;;;;;N;;;;;
+1B82;SUNDANESE SIGN PANGWISAD;Mc;0;L;;;;;N;;;;;
+1B83;SUNDANESE LETTER A;Lo;0;L;;;;;N;;;;;
+1B84;SUNDANESE LETTER I;Lo;0;L;;;;;N;;;;;
+1B85;SUNDANESE LETTER U;Lo;0;L;;;;;N;;;;;
+1B86;SUNDANESE LETTER AE;Lo;0;L;;;;;N;;;;;
+1B87;SUNDANESE LETTER O;Lo;0;L;;;;;N;;;;;
+1B88;SUNDANESE LETTER E;Lo;0;L;;;;;N;;;;;
+1B89;SUNDANESE LETTER EU;Lo;0;L;;;;;N;;;;;
+1B8A;SUNDANESE LETTER KA;Lo;0;L;;;;;N;;;;;
+1B8B;SUNDANESE LETTER QA;Lo;0;L;;;;;N;;;;;
+1B8C;SUNDANESE LETTER GA;Lo;0;L;;;;;N;;;;;
+1B8D;SUNDANESE LETTER NGA;Lo;0;L;;;;;N;;;;;
+1B8E;SUNDANESE LETTER CA;Lo;0;L;;;;;N;;;;;
+1B8F;SUNDANESE LETTER JA;Lo;0;L;;;;;N;;;;;
+1B90;SUNDANESE LETTER ZA;Lo;0;L;;;;;N;;;;;
+1B91;SUNDANESE LETTER NYA;Lo;0;L;;;;;N;;;;;
+1B92;SUNDANESE LETTER TA;Lo;0;L;;;;;N;;;;;
+1B93;SUNDANESE LETTER DA;Lo;0;L;;;;;N;;;;;
+1B94;SUNDANESE LETTER NA;Lo;0;L;;;;;N;;;;;
+1B95;SUNDANESE LETTER PA;Lo;0;L;;;;;N;;;;;
+1B96;SUNDANESE LETTER FA;Lo;0;L;;;;;N;;;;;
+1B97;SUNDANESE LETTER VA;Lo;0;L;;;;;N;;;;;
+1B98;SUNDANESE LETTER BA;Lo;0;L;;;;;N;;;;;
+1B99;SUNDANESE LETTER MA;Lo;0;L;;;;;N;;;;;
+1B9A;SUNDANESE LETTER YA;Lo;0;L;;;;;N;;;;;
+1B9B;SUNDANESE LETTER RA;Lo;0;L;;;;;N;;;;;
+1B9C;SUNDANESE LETTER LA;Lo;0;L;;;;;N;;;;;
+1B9D;SUNDANESE LETTER WA;Lo;0;L;;;;;N;;;;;
+1B9E;SUNDANESE LETTER SA;Lo;0;L;;;;;N;;;;;
+1B9F;SUNDANESE LETTER XA;Lo;0;L;;;;;N;;;;;
+1BA0;SUNDANESE LETTER HA;Lo;0;L;;;;;N;;;;;
+1BA1;SUNDANESE CONSONANT SIGN PAMINGKAL;Mc;0;L;;;;;N;;;;;
+1BA2;SUNDANESE CONSONANT SIGN PANYAKRA;Mn;0;NSM;;;;;N;;;;;
+1BA3;SUNDANESE CONSONANT SIGN PANYIKU;Mn;0;NSM;;;;;N;;;;;
+1BA4;SUNDANESE VOWEL SIGN PANGHULU;Mn;0;NSM;;;;;N;;;;;
+1BA5;SUNDANESE VOWEL SIGN PANYUKU;Mn;0;NSM;;;;;N;;;;;
+1BA6;SUNDANESE VOWEL SIGN PANAELAENG;Mc;0;L;;;;;N;;;;;
+1BA7;SUNDANESE VOWEL SIGN PANOLONG;Mc;0;L;;;;;N;;;;;
+1BA8;SUNDANESE VOWEL SIGN PAMEPET;Mn;0;NSM;;;;;N;;;;;
+1BA9;SUNDANESE VOWEL SIGN PANEULEUNG;Mn;0;NSM;;;;;N;;;;;
+1BAA;SUNDANESE SIGN PAMAAEH;Mc;9;L;;;;;N;;;;;
+1BAB;SUNDANESE SIGN VIRAMA;Mn;9;NSM;;;;;N;;;;;
+1BAC;SUNDANESE CONSONANT SIGN PASANGAN MA;Mc;0;L;;;;;N;;;;;
+1BAD;SUNDANESE CONSONANT SIGN PASANGAN WA;Mc;0;L;;;;;N;;;;;
+1BAE;SUNDANESE LETTER KHA;Lo;0;L;;;;;N;;;;;
+1BAF;SUNDANESE LETTER SYA;Lo;0;L;;;;;N;;;;;
+1BB0;SUNDANESE DIGIT ZERO;Nd;0;L;;0;0;0;N;;;;;
+1BB1;SUNDANESE DIGIT ONE;Nd;0;L;;1;1;1;N;;;;;
+1BB2;SUNDANESE DIGIT TWO;Nd;0;L;;2;2;2;N;;;;;
+1BB3;SUNDANESE DIGIT THREE;Nd;0;L;;3;3;3;N;;;;;
+1BB4;SUNDANESE DIGIT FOUR;Nd;0;L;;4;4;4;N;;;;;
+1BB5;SUNDANESE DIGIT FIVE;Nd;0;L;;5;5;5;N;;;;;
+1BB6;SUNDANESE DIGIT SIX;Nd;0;L;;6;6;6;N;;;;;
+1BB7;SUNDANESE DIGIT SEVEN;Nd;0;L;;7;7;7;N;;;;;
+1BB8;SUNDANESE DIGIT EIGHT;Nd;0;L;;8;8;8;N;;;;;
+1BB9;SUNDANESE DIGIT NINE;Nd;0;L;;9;9;9;N;;;;;
+1BBA;SUNDANESE AVAGRAHA;Lo;0;L;;;;;N;;;;;
+1BBB;SUNDANESE LETTER REU;Lo;0;L;;;;;N;;;;;
+1BBC;SUNDANESE LETTER LEU;Lo;0;L;;;;;N;;;;;
+1BBD;SUNDANESE LETTER BHA;Lo;0;L;;;;;N;;;;;
+1BBE;SUNDANESE LETTER FINAL K;Lo;0;L;;;;;N;;;;;
+1BBF;SUNDANESE LETTER FINAL M;Lo;0;L;;;;;N;;;;;
+1BC0;BATAK LETTER A;Lo;0;L;;;;;N;;;;;
+1BC1;BATAK LETTER SIMALUNGUN A;Lo;0;L;;;;;N;;;;;
+1BC2;BATAK LETTER HA;Lo;0;L;;;;;N;;;;;
+1BC3;BATAK LETTER SIMALUNGUN HA;Lo;0;L;;;;;N;;;;;
+1BC4;BATAK LETTER MANDAILING HA;Lo;0;L;;;;;N;;;;;
+1BC5;BATAK LETTER BA;Lo;0;L;;;;;N;;;;;
+1BC6;BATAK LETTER KARO BA;Lo;0;L;;;;;N;;;;;
+1BC7;BATAK LETTER PA;Lo;0;L;;;;;N;;;;;
+1BC8;BATAK LETTER SIMALUNGUN PA;Lo;0;L;;;;;N;;;;;
+1BC9;BATAK LETTER NA;Lo;0;L;;;;;N;;;;;
+1BCA;BATAK LETTER MANDAILING NA;Lo;0;L;;;;;N;;;;;
+1BCB;BATAK LETTER WA;Lo;0;L;;;;;N;;;;;
+1BCC;BATAK LETTER SIMALUNGUN WA;Lo;0;L;;;;;N;;;;;
+1BCD;BATAK LETTER PAKPAK WA;Lo;0;L;;;;;N;;;;;
+1BCE;BATAK LETTER GA;Lo;0;L;;;;;N;;;;;
+1BCF;BATAK LETTER SIMALUNGUN GA;Lo;0;L;;;;;N;;;;;
+1BD0;BATAK LETTER JA;Lo;0;L;;;;;N;;;;;
+1BD1;BATAK LETTER DA;Lo;0;L;;;;;N;;;;;
+1BD2;BATAK LETTER RA;Lo;0;L;;;;;N;;;;;
+1BD3;BATAK LETTER SIMALUNGUN RA;Lo;0;L;;;;;N;;;;;
+1BD4;BATAK LETTER MA;Lo;0;L;;;;;N;;;;;
+1BD5;BATAK LETTER SIMALUNGUN MA;Lo;0;L;;;;;N;;;;;
+1BD6;BATAK LETTER SOUTHERN TA;Lo;0;L;;;;;N;;;;;
+1BD7;BATAK LETTER NORTHERN TA;Lo;0;L;;;;;N;;;;;
+1BD8;BATAK LETTER SA;Lo;0;L;;;;;N;;;;;
+1BD9;BATAK LETTER SIMALUNGUN SA;Lo;0;L;;;;;N;;;;;
+1BDA;BATAK LETTER MANDAILING SA;Lo;0;L;;;;;N;;;;;
+1BDB;BATAK LETTER YA;Lo;0;L;;;;;N;;;;;
+1BDC;BATAK LETTER SIMALUNGUN YA;Lo;0;L;;;;;N;;;;;
+1BDD;BATAK LETTER NGA;Lo;0;L;;;;;N;;;;;
+1BDE;BATAK LETTER LA;Lo;0;L;;;;;N;;;;;
+1BDF;BATAK LETTER SIMALUNGUN LA;Lo;0;L;;;;;N;;;;;
+1BE0;BATAK LETTER NYA;Lo;0;L;;;;;N;;;;;
+1BE1;BATAK LETTER CA;Lo;0;L;;;;;N;;;;;
+1BE2;BATAK LETTER NDA;Lo;0;L;;;;;N;;;;;
+1BE3;BATAK LETTER MBA;Lo;0;L;;;;;N;;;;;
+1BE4;BATAK LETTER I;Lo;0;L;;;;;N;;;;;
+1BE5;BATAK LETTER U;Lo;0;L;;;;;N;;;;;
+1BE6;BATAK SIGN TOMPI;Mn;7;NSM;;;;;N;;;;;
+1BE7;BATAK VOWEL SIGN E;Mc;0;L;;;;;N;;;;;
+1BE8;BATAK VOWEL SIGN PAKPAK E;Mn;0;NSM;;;;;N;;;;;
+1BE9;BATAK VOWEL SIGN EE;Mn;0;NSM;;;;;N;;;;;
+1BEA;BATAK VOWEL SIGN I;Mc;0;L;;;;;N;;;;;
+1BEB;BATAK VOWEL SIGN KARO I;Mc;0;L;;;;;N;;;;;
+1BEC;BATAK VOWEL SIGN O;Mc;0;L;;;;;N;;;;;
+1BED;BATAK VOWEL SIGN KARO O;Mn;0;NSM;;;;;N;;;;;
+1BEE;BATAK VOWEL SIGN U;Mc;0;L;;;;;N;;;;;
+1BEF;BATAK VOWEL SIGN U FOR SIMALUNGUN SA;Mn;0;NSM;;;;;N;;;;;
+1BF0;BATAK CONSONANT SIGN NG;Mn;0;NSM;;;;;N;;;;;
+1BF1;BATAK CONSONANT SIGN H;Mn;0;NSM;;;;;N;;;;;
+1BF2;BATAK PANGOLAT;Mc;9;L;;;;;N;;;;;
+1BF3;BATAK PANONGONAN;Mc;9;L;;;;;N;;;;;
+1BFC;BATAK SYMBOL BINDU NA METEK;Po;0;L;;;;;N;;;;;
+1BFD;BATAK SYMBOL BINDU PINARBORAS;Po;0;L;;;;;N;;;;;
+1BFE;BATAK SYMBOL BINDU JUDUL;Po;0;L;;;;;N;;;;;
+1BFF;BATAK SYMBOL BINDU PANGOLAT;Po;0;L;;;;;N;;;;;
+1C00;LEPCHA LETTER KA;Lo;0;L;;;;;N;;;;;
+1C01;LEPCHA LETTER KLA;Lo;0;L;;;;;N;;;;;
+1C02;LEPCHA LETTER KHA;Lo;0;L;;;;;N;;;;;
+1C03;LEPCHA LETTER GA;Lo;0;L;;;;;N;;;;;
+1C04;LEPCHA LETTER GLA;Lo;0;L;;;;;N;;;;;
+1C05;LEPCHA LETTER NGA;Lo;0;L;;;;;N;;;;;
+1C06;LEPCHA LETTER CA;Lo;0;L;;;;;N;;;;;
+1C07;LEPCHA LETTER CHA;Lo;0;L;;;;;N;;;;;
+1C08;LEPCHA LETTER JA;Lo;0;L;;;;;N;;;;;
+1C09;LEPCHA LETTER NYA;Lo;0;L;;;;;N;;;;;
+1C0A;LEPCHA LETTER TA;Lo;0;L;;;;;N;;;;;
+1C0B;LEPCHA LETTER THA;Lo;0;L;;;;;N;;;;;
+1C0C;LEPCHA LETTER DA;Lo;0;L;;;;;N;;;;;
+1C0D;LEPCHA LETTER NA;Lo;0;L;;;;;N;;;;;
+1C0E;LEPCHA LETTER PA;Lo;0;L;;;;;N;;;;;
+1C0F;LEPCHA LETTER PLA;Lo;0;L;;;;;N;;;;;
+1C10;LEPCHA LETTER PHA;Lo;0;L;;;;;N;;;;;
+1C11;LEPCHA LETTER FA;Lo;0;L;;;;;N;;;;;
+1C12;LEPCHA LETTER FLA;Lo;0;L;;;;;N;;;;;
+1C13;LEPCHA LETTER BA;Lo;0;L;;;;;N;;;;;
+1C14;LEPCHA LETTER BLA;Lo;0;L;;;;;N;;;;;
+1C15;LEPCHA LETTER MA;Lo;0;L;;;;;N;;;;;
+1C16;LEPCHA LETTER MLA;Lo;0;L;;;;;N;;;;;
+1C17;LEPCHA LETTER TSA;Lo;0;L;;;;;N;;;;;
+1C18;LEPCHA LETTER TSHA;Lo;0;L;;;;;N;;;;;
+1C19;LEPCHA LETTER DZA;Lo;0;L;;;;;N;;;;;
+1C1A;LEPCHA LETTER YA;Lo;0;L;;;;;N;;;;;
+1C1B;LEPCHA LETTER RA;Lo;0;L;;;;;N;;;;;
+1C1C;LEPCHA LETTER LA;Lo;0;L;;;;;N;;;;;
+1C1D;LEPCHA LETTER HA;Lo;0;L;;;;;N;;;;;
+1C1E;LEPCHA LETTER HLA;Lo;0;L;;;;;N;;;;;
+1C1F;LEPCHA LETTER VA;Lo;0;L;;;;;N;;;;;
+1C20;LEPCHA LETTER SA;Lo;0;L;;;;;N;;;;;
+1C21;LEPCHA LETTER SHA;Lo;0;L;;;;;N;;;;;
+1C22;LEPCHA LETTER WA;Lo;0;L;;;;;N;;;;;
+1C23;LEPCHA LETTER A;Lo;0;L;;;;;N;;;;;
+1C24;LEPCHA SUBJOINED LETTER YA;Mc;0;L;;;;;N;;;;;
+1C25;LEPCHA SUBJOINED LETTER RA;Mc;0;L;;;;;N;;;;;
+1C26;LEPCHA VOWEL SIGN AA;Mc;0;L;;;;;N;;;;;
+1C27;LEPCHA VOWEL SIGN I;Mc;0;L;;;;;N;;;;;
+1C28;LEPCHA VOWEL SIGN O;Mc;0;L;;;;;N;;;;;
+1C29;LEPCHA VOWEL SIGN OO;Mc;0;L;;;;;N;;;;;
+1C2A;LEPCHA VOWEL SIGN U;Mc;0;L;;;;;N;;;;;
+1C2B;LEPCHA VOWEL SIGN UU;Mc;0;L;;;;;N;;;;;
+1C2C;LEPCHA VOWEL SIGN E;Mn;0;NSM;;;;;N;;;;;
+1C2D;LEPCHA CONSONANT SIGN K;Mn;0;NSM;;;;;N;;;;;
+1C2E;LEPCHA CONSONANT SIGN M;Mn;0;NSM;;;;;N;;;;;
+1C2F;LEPCHA CONSONANT SIGN L;Mn;0;NSM;;;;;N;;;;;
+1C30;LEPCHA CONSONANT SIGN N;Mn;0;NSM;;;;;N;;;;;
+1C31;LEPCHA CONSONANT SIGN P;Mn;0;NSM;;;;;N;;;;;
+1C32;LEPCHA CONSONANT SIGN R;Mn;0;NSM;;;;;N;;;;;
+1C33;LEPCHA CONSONANT SIGN T;Mn;0;NSM;;;;;N;;;;;
+1C34;LEPCHA CONSONANT SIGN NYIN-DO;Mc;0;L;;;;;N;;;;;
+1C35;LEPCHA CONSONANT SIGN KANG;Mc;0;L;;;;;N;;;;;
+1C36;LEPCHA SIGN RAN;Mn;0;NSM;;;;;N;;;;;
+1C37;LEPCHA SIGN NUKTA;Mn;7;NSM;;;;;N;;;;;
+1C3B;LEPCHA PUNCTUATION TA-ROL;Po;0;L;;;;;N;;;;;
+1C3C;LEPCHA PUNCTUATION NYET THYOOM TA-ROL;Po;0;L;;;;;N;;;;;
+1C3D;LEPCHA PUNCTUATION CER-WA;Po;0;L;;;;;N;;;;;
+1C3E;LEPCHA PUNCTUATION TSHOOK CER-WA;Po;0;L;;;;;N;;;;;
+1C3F;LEPCHA PUNCTUATION TSHOOK;Po;0;L;;;;;N;;;;;
+1C40;LEPCHA DIGIT ZERO;Nd;0;L;;0;0;0;N;;;;;
+1C41;LEPCHA DIGIT ONE;Nd;0;L;;1;1;1;N;;;;;
+1C42;LEPCHA DIGIT TWO;Nd;0;L;;2;2;2;N;;;;;
+1C43;LEPCHA DIGIT THREE;Nd;0;L;;3;3;3;N;;;;;
+1C44;LEPCHA DIGIT FOUR;Nd;0;L;;4;4;4;N;;;;;
+1C45;LEPCHA DIGIT FIVE;Nd;0;L;;5;5;5;N;;;;;
+1C46;LEPCHA DIGIT SIX;Nd;0;L;;6;6;6;N;;;;;
+1C47;LEPCHA DIGIT SEVEN;Nd;0;L;;7;7;7;N;;;;;
+1C48;LEPCHA DIGIT EIGHT;Nd;0;L;;8;8;8;N;;;;;
+1C49;LEPCHA DIGIT NINE;Nd;0;L;;9;9;9;N;;;;;
+1C4D;LEPCHA LETTER TTA;Lo;0;L;;;;;N;;;;;
+1C4E;LEPCHA LETTER TTHA;Lo;0;L;;;;;N;;;;;
+1C4F;LEPCHA LETTER DDA;Lo;0;L;;;;;N;;;;;
+1C50;OL CHIKI DIGIT ZERO;Nd;0;L;;0;0;0;N;;;;;
+1C51;OL CHIKI DIGIT ONE;Nd;0;L;;1;1;1;N;;;;;
+1C52;OL CHIKI DIGIT TWO;Nd;0;L;;2;2;2;N;;;;;
+1C53;OL CHIKI DIGIT THREE;Nd;0;L;;3;3;3;N;;;;;
+1C54;OL CHIKI DIGIT FOUR;Nd;0;L;;4;4;4;N;;;;;
+1C55;OL CHIKI DIGIT FIVE;Nd;0;L;;5;5;5;N;;;;;
+1C56;OL CHIKI DIGIT SIX;Nd;0;L;;6;6;6;N;;;;;
+1C57;OL CHIKI DIGIT SEVEN;Nd;0;L;;7;7;7;N;;;;;
+1C58;OL CHIKI DIGIT EIGHT;Nd;0;L;;8;8;8;N;;;;;
+1C59;OL CHIKI DIGIT NINE;Nd;0;L;;9;9;9;N;;;;;
+1C5A;OL CHIKI LETTER LA;Lo;0;L;;;;;N;;;;;
+1C5B;OL CHIKI LETTER AT;Lo;0;L;;;;;N;;;;;
+1C5C;OL CHIKI LETTER AG;Lo;0;L;;;;;N;;;;;
+1C5D;OL CHIKI LETTER ANG;Lo;0;L;;;;;N;;;;;
+1C5E;OL CHIKI LETTER AL;Lo;0;L;;;;;N;;;;;
+1C5F;OL CHIKI LETTER LAA;Lo;0;L;;;;;N;;;;;
+1C60;OL CHIKI LETTER AAK;Lo;0;L;;;;;N;;;;;
+1C61;OL CHIKI LETTER AAJ;Lo;0;L;;;;;N;;;;;
+1C62;OL CHIKI LETTER AAM;Lo;0;L;;;;;N;;;;;
+1C63;OL CHIKI LETTER AAW;Lo;0;L;;;;;N;;;;;
+1C64;OL CHIKI LETTER LI;Lo;0;L;;;;;N;;;;;
+1C65;OL CHIKI LETTER IS;Lo;0;L;;;;;N;;;;;
+1C66;OL CHIKI LETTER IH;Lo;0;L;;;;;N;;;;;
+1C67;OL CHIKI LETTER INY;Lo;0;L;;;;;N;;;;;
+1C68;OL CHIKI LETTER IR;Lo;0;L;;;;;N;;;;;
+1C69;OL CHIKI LETTER LU;Lo;0;L;;;;;N;;;;;
+1C6A;OL CHIKI LETTER UC;Lo;0;L;;;;;N;;;;;
+1C6B;OL CHIKI LETTER UD;Lo;0;L;;;;;N;;;;;
+1C6C;OL CHIKI LETTER UNN;Lo;0;L;;;;;N;;;;;
+1C6D;OL CHIKI LETTER UY;Lo;0;L;;;;;N;;;;;
+1C6E;OL CHIKI LETTER LE;Lo;0;L;;;;;N;;;;;
+1C6F;OL CHIKI LETTER EP;Lo;0;L;;;;;N;;;;;
+1C70;OL CHIKI LETTER EDD;Lo;0;L;;;;;N;;;;;
+1C71;OL CHIKI LETTER EN;Lo;0;L;;;;;N;;;;;
+1C72;OL CHIKI LETTER ERR;Lo;0;L;;;;;N;;;;;
+1C73;OL CHIKI LETTER LO;Lo;0;L;;;;;N;;;;;
+1C74;OL CHIKI LETTER OTT;Lo;0;L;;;;;N;;;;;
+1C75;OL CHIKI LETTER OB;Lo;0;L;;;;;N;;;;;
+1C76;OL CHIKI LETTER OV;Lo;0;L;;;;;N;;;;;
+1C77;OL CHIKI LETTER OH;Lo;0;L;;;;;N;;;;;
+1C78;OL CHIKI MU TTUDDAG;Lm;0;L;;;;;N;;;;;
+1C79;OL CHIKI GAAHLAA TTUDDAAG;Lm;0;L;;;;;N;;;;;
+1C7A;OL CHIKI MU-GAAHLAA TTUDDAAG;Lm;0;L;;;;;N;;;;;
+1C7B;OL CHIKI RELAA;Lm;0;L;;;;;N;;;;;
+1C7C;OL CHIKI PHAARKAA;Lm;0;L;;;;;N;;;;;
+1C7D;OL CHIKI AHAD;Lm;0;L;;;;;N;;;;;
+1C7E;OL CHIKI PUNCTUATION MUCAAD;Po;0;L;;;;;N;;;;;
+1C7F;OL CHIKI PUNCTUATION DOUBLE MUCAAD;Po;0;L;;;;;N;;;;;
+1CC0;SUNDANESE PUNCTUATION BINDU SURYA;Po;0;L;;;;;N;;;;;
+1CC1;SUNDANESE PUNCTUATION BINDU PANGLONG;Po;0;L;;;;;N;;;;;
+1CC2;SUNDANESE PUNCTUATION BINDU PURNAMA;Po;0;L;;;;;N;;;;;
+1CC3;SUNDANESE PUNCTUATION BINDU CAKRA;Po;0;L;;;;;N;;;;;
+1CC4;SUNDANESE PUNCTUATION BINDU LEU SATANGA;Po;0;L;;;;;N;;;;;
+1CC5;SUNDANESE PUNCTUATION BINDU KA SATANGA;Po;0;L;;;;;N;;;;;
+1CC6;SUNDANESE PUNCTUATION BINDU DA SATANGA;Po;0;L;;;;;N;;;;;
+1CC7;SUNDANESE PUNCTUATION BINDU BA SATANGA;Po;0;L;;;;;N;;;;;
+1CD0;VEDIC TONE KARSHANA;Mn;230;NSM;;;;;N;;;;;
+1CD1;VEDIC TONE SHARA;Mn;230;NSM;;;;;N;;;;;
+1CD2;VEDIC TONE PRENKHA;Mn;230;NSM;;;;;N;;;;;
+1CD3;VEDIC SIGN NIHSHVASA;Po;0;L;;;;;N;;;;;
+1CD4;VEDIC SIGN YAJURVEDIC MIDLINE SVARITA;Mn;1;NSM;;;;;N;;;;;
+1CD5;VEDIC TONE YAJURVEDIC AGGRAVATED INDEPENDENT SVARITA;Mn;220;NSM;;;;;N;;;;;
+1CD6;VEDIC TONE YAJURVEDIC INDEPENDENT SVARITA;Mn;220;NSM;;;;;N;;;;;
+1CD7;VEDIC TONE YAJURVEDIC KATHAKA INDEPENDENT SVARITA;Mn;220;NSM;;;;;N;;;;;
+1CD8;VEDIC TONE CANDRA BELOW;Mn;220;NSM;;;;;N;;;;;
+1CD9;VEDIC TONE YAJURVEDIC KATHAKA INDEPENDENT SVARITA SCHROEDER;Mn;220;NSM;;;;;N;;;;;
+1CDA;VEDIC TONE DOUBLE SVARITA;Mn;230;NSM;;;;;N;;;;;
+1CDB;VEDIC TONE TRIPLE SVARITA;Mn;230;NSM;;;;;N;;;;;
+1CDC;VEDIC TONE KATHAKA ANUDATTA;Mn;220;NSM;;;;;N;;;;;
+1CDD;VEDIC TONE DOT BELOW;Mn;220;NSM;;;;;N;;;;;
+1CDE;VEDIC TONE TWO DOTS BELOW;Mn;220;NSM;;;;;N;;;;;
+1CDF;VEDIC TONE THREE DOTS BELOW;Mn;220;NSM;;;;;N;;;;;
+1CE0;VEDIC TONE RIGVEDIC KASHMIRI INDEPENDENT SVARITA;Mn;230;NSM;;;;;N;;;;;
+1CE1;VEDIC TONE ATHARVAVEDIC INDEPENDENT SVARITA;Mc;0;L;;;;;N;;;;;
+1CE2;VEDIC SIGN VISARGA SVARITA;Mn;1;NSM;;;;;N;;;;;
+1CE3;VEDIC SIGN VISARGA UDATTA;Mn;1;NSM;;;;;N;;;;;
+1CE4;VEDIC SIGN REVERSED VISARGA UDATTA;Mn;1;NSM;;;;;N;;;;;
+1CE5;VEDIC SIGN VISARGA ANUDATTA;Mn;1;NSM;;;;;N;;;;;
+1CE6;VEDIC SIGN REVERSED VISARGA ANUDATTA;Mn;1;NSM;;;;;N;;;;;
+1CE7;VEDIC SIGN VISARGA UDATTA WITH TAIL;Mn;1;NSM;;;;;N;;;;;
+1CE8;VEDIC SIGN VISARGA ANUDATTA WITH TAIL;Mn;1;NSM;;;;;N;;;;;
+1CE9;VEDIC SIGN ANUSVARA ANTARGOMUKHA;Lo;0;L;;;;;N;;;;;
+1CEA;VEDIC SIGN ANUSVARA BAHIRGOMUKHA;Lo;0;L;;;;;N;;;;;
+1CEB;VEDIC SIGN ANUSVARA VAMAGOMUKHA;Lo;0;L;;;;;N;;;;;
+1CEC;VEDIC SIGN ANUSVARA VAMAGOMUKHA WITH TAIL;Lo;0;L;;;;;N;;;;;
+1CED;VEDIC SIGN TIRYAK;Mn;220;NSM;;;;;N;;;;;
+1CEE;VEDIC SIGN HEXIFORM LONG ANUSVARA;Lo;0;L;;;;;N;;;;;
+1CEF;VEDIC SIGN LONG ANUSVARA;Lo;0;L;;;;;N;;;;;
+1CF0;VEDIC SIGN RTHANG LONG ANUSVARA;Lo;0;L;;;;;N;;;;;
+1CF1;VEDIC SIGN ANUSVARA UBHAYATO MUKHA;Lo;0;L;;;;;N;;;;;
+1CF2;VEDIC SIGN ARDHAVISARGA;Mc;0;L;;;;;N;;;;;
+1CF3;VEDIC SIGN ROTATED ARDHAVISARGA;Mc;0;L;;;;;N;;;;;
+1CF4;VEDIC TONE CANDRA ABOVE;Mn;230;NSM;;;;;N;;;;;
+1CF5;VEDIC SIGN JIHVAMULIYA;Lo;0;L;;;;;N;;;;;
+1CF6;VEDIC SIGN UPADHMANIYA;Lo;0;L;;;;;N;;;;;
+1D00;LATIN LETTER SMALL CAPITAL A;Ll;0;L;;;;;N;;;;;
+1D01;LATIN LETTER SMALL CAPITAL AE;Ll;0;L;;;;;N;;;;;
+1D02;LATIN SMALL LETTER TURNED AE;Ll;0;L;;;;;N;;;;;
+1D03;LATIN LETTER SMALL CAPITAL BARRED B;Ll;0;L;;;;;N;;;;;
+1D04;LATIN LETTER SMALL CAPITAL C;Ll;0;L;;;;;N;;;;;
+1D05;LATIN LETTER SMALL CAPITAL D;Ll;0;L;;;;;N;;;;;
+1D06;LATIN LETTER SMALL CAPITAL ETH;Ll;0;L;;;;;N;;;;;
+1D07;LATIN LETTER SMALL CAPITAL E;Ll;0;L;;;;;N;;;;;
+1D08;LATIN SMALL LETTER TURNED OPEN E;Ll;0;L;;;;;N;;;;;
+1D09;LATIN SMALL LETTER TURNED I;Ll;0;L;;;;;N;;;;;
+1D0A;LATIN LETTER SMALL CAPITAL J;Ll;0;L;;;;;N;;;;;
+1D0B;LATIN LETTER SMALL CAPITAL K;Ll;0;L;;;;;N;;;;;
+1D0C;LATIN LETTER SMALL CAPITAL L WITH STROKE;Ll;0;L;;;;;N;;;;;
+1D0D;LATIN LETTER SMALL CAPITAL M;Ll;0;L;;;;;N;;;;;
+1D0E;LATIN LETTER SMALL CAPITAL REVERSED N;Ll;0;L;;;;;N;;;;;
+1D0F;LATIN LETTER SMALL CAPITAL O;Ll;0;L;;;;;N;;;;;
+1D10;LATIN LETTER SMALL CAPITAL OPEN O;Ll;0;L;;;;;N;;;;;
+1D11;LATIN SMALL LETTER SIDEWAYS O;Ll;0;L;;;;;N;;;;;
+1D12;LATIN SMALL LETTER SIDEWAYS OPEN O;Ll;0;L;;;;;N;;;;;
+1D13;LATIN SMALL LETTER SIDEWAYS O WITH STROKE;Ll;0;L;;;;;N;;;;;
+1D14;LATIN SMALL LETTER TURNED OE;Ll;0;L;;;;;N;;;;;
+1D15;LATIN LETTER SMALL CAPITAL OU;Ll;0;L;;;;;N;;;;;
+1D16;LATIN SMALL LETTER TOP HALF O;Ll;0;L;;;;;N;;;;;
+1D17;LATIN SMALL LETTER BOTTOM HALF O;Ll;0;L;;;;;N;;;;;
+1D18;LATIN LETTER SMALL CAPITAL P;Ll;0;L;;;;;N;;;;;
+1D19;LATIN LETTER SMALL CAPITAL REVERSED R;Ll;0;L;;;;;N;;;;;
+1D1A;LATIN LETTER SMALL CAPITAL TURNED R;Ll;0;L;;;;;N;;;;;
+1D1B;LATIN LETTER SMALL CAPITAL T;Ll;0;L;;;;;N;;;;;
+1D1C;LATIN LETTER SMALL CAPITAL U;Ll;0;L;;;;;N;;;;;
+1D1D;LATIN SMALL LETTER SIDEWAYS U;Ll;0;L;;;;;N;;;;;
+1D1E;LATIN SMALL LETTER SIDEWAYS DIAERESIZED U;Ll;0;L;;;;;N;;;;;
+1D1F;LATIN SMALL LETTER SIDEWAYS TURNED M;Ll;0;L;;;;;N;;;;;
+1D20;LATIN LETTER SMALL CAPITAL V;Ll;0;L;;;;;N;;;;;
+1D21;LATIN LETTER SMALL CAPITAL W;Ll;0;L;;;;;N;;;;;
+1D22;LATIN LETTER SMALL CAPITAL Z;Ll;0;L;;;;;N;;;;;
+1D23;LATIN LETTER SMALL CAPITAL EZH;Ll;0;L;;;;;N;;;;;
+1D24;LATIN LETTER VOICED LARYNGEAL SPIRANT;Ll;0;L;;;;;N;;;;;
+1D25;LATIN LETTER AIN;Ll;0;L;;;;;N;;;;;
+1D26;GREEK LETTER SMALL CAPITAL GAMMA;Ll;0;L;;;;;N;;;;;
+1D27;GREEK LETTER SMALL CAPITAL LAMDA;Ll;0;L;;;;;N;;;;;
+1D28;GREEK LETTER SMALL CAPITAL PI;Ll;0;L;;;;;N;;;;;
+1D29;GREEK LETTER SMALL CAPITAL RHO;Ll;0;L;;;;;N;;;;;
+1D2A;GREEK LETTER SMALL CAPITAL PSI;Ll;0;L;;;;;N;;;;;
+1D2B;CYRILLIC LETTER SMALL CAPITAL EL;Ll;0;L;;;;;N;;;;;
+1D2C;MODIFIER LETTER CAPITAL A;Lm;0;L;<super> 0041;;;;N;;;;;
+1D2D;MODIFIER LETTER CAPITAL AE;Lm;0;L;<super> 00C6;;;;N;;;;;
+1D2E;MODIFIER LETTER CAPITAL B;Lm;0;L;<super> 0042;;;;N;;;;;
+1D2F;MODIFIER LETTER CAPITAL BARRED B;Lm;0;L;;;;;N;;;;;
+1D30;MODIFIER LETTER CAPITAL D;Lm;0;L;<super> 0044;;;;N;;;;;
+1D31;MODIFIER LETTER CAPITAL E;Lm;0;L;<super> 0045;;;;N;;;;;
+1D32;MODIFIER LETTER CAPITAL REVERSED E;Lm;0;L;<super> 018E;;;;N;;;;;
+1D33;MODIFIER LETTER CAPITAL G;Lm;0;L;<super> 0047;;;;N;;;;;
+1D34;MODIFIER LETTER CAPITAL H;Lm;0;L;<super> 0048;;;;N;;;;;
+1D35;MODIFIER LETTER CAPITAL I;Lm;0;L;<super> 0049;;;;N;;;;;
+1D36;MODIFIER LETTER CAPITAL J;Lm;0;L;<super> 004A;;;;N;;;;;
+1D37;MODIFIER LETTER CAPITAL K;Lm;0;L;<super> 004B;;;;N;;;;;
+1D38;MODIFIER LETTER CAPITAL L;Lm;0;L;<super> 004C;;;;N;;;;;
+1D39;MODIFIER LETTER CAPITAL M;Lm;0;L;<super> 004D;;;;N;;;;;
+1D3A;MODIFIER LETTER CAPITAL N;Lm;0;L;<super> 004E;;;;N;;;;;
+1D3B;MODIFIER LETTER CAPITAL REVERSED N;Lm;0;L;;;;;N;;;;;
+1D3C;MODIFIER LETTER CAPITAL O;Lm;0;L;<super> 004F;;;;N;;;;;
+1D3D;MODIFIER LETTER CAPITAL OU;Lm;0;L;<super> 0222;;;;N;;;;;
+1D3E;MODIFIER LETTER CAPITAL P;Lm;0;L;<super> 0050;;;;N;;;;;
+1D3F;MODIFIER LETTER CAPITAL R;Lm;0;L;<super> 0052;;;;N;;;;;
+1D40;MODIFIER LETTER CAPITAL T;Lm;0;L;<super> 0054;;;;N;;;;;
+1D41;MODIFIER LETTER CAPITAL U;Lm;0;L;<super> 0055;;;;N;;;;;
+1D42;MODIFIER LETTER CAPITAL W;Lm;0;L;<super> 0057;;;;N;;;;;
+1D43;MODIFIER LETTER SMALL A;Lm;0;L;<super> 0061;;;;N;;;;;
+1D44;MODIFIER LETTER SMALL TURNED A;Lm;0;L;<super> 0250;;;;N;;;;;
+1D45;MODIFIER LETTER SMALL ALPHA;Lm;0;L;<super> 0251;;;;N;;;;;
+1D46;MODIFIER LETTER SMALL TURNED AE;Lm;0;L;<super> 1D02;;;;N;;;;;
+1D47;MODIFIER LETTER SMALL B;Lm;0;L;<super> 0062;;;;N;;;;;
+1D48;MODIFIER LETTER SMALL D;Lm;0;L;<super> 0064;;;;N;;;;;
+1D49;MODIFIER LETTER SMALL E;Lm;0;L;<super> 0065;;;;N;;;;;
+1D4A;MODIFIER LETTER SMALL SCHWA;Lm;0;L;<super> 0259;;;;N;;;;;
+1D4B;MODIFIER LETTER SMALL OPEN E;Lm;0;L;<super> 025B;;;;N;;;;;
+1D4C;MODIFIER LETTER SMALL TURNED OPEN E;Lm;0;L;<super> 025C;;;;N;;;;;
+1D4D;MODIFIER LETTER SMALL G;Lm;0;L;<super> 0067;;;;N;;;;;
+1D4E;MODIFIER LETTER SMALL TURNED I;Lm;0;L;;;;;N;;;;;
+1D4F;MODIFIER LETTER SMALL K;Lm;0;L;<super> 006B;;;;N;;;;;
+1D50;MODIFIER LETTER SMALL M;Lm;0;L;<super> 006D;;;;N;;;;;
+1D51;MODIFIER LETTER SMALL ENG;Lm;0;L;<super> 014B;;;;N;;;;;
+1D52;MODIFIER LETTER SMALL O;Lm;0;L;<super> 006F;;;;N;;;;;
+1D53;MODIFIER LETTER SMALL OPEN O;Lm;0;L;<super> 0254;;;;N;;;;;
+1D54;MODIFIER LETTER SMALL TOP HALF O;Lm;0;L;<super> 1D16;;;;N;;;;;
+1D55;MODIFIER LETTER SMALL BOTTOM HALF O;Lm;0;L;<super> 1D17;;;;N;;;;;
+1D56;MODIFIER LETTER SMALL P;Lm;0;L;<super> 0070;;;;N;;;;;
+1D57;MODIFIER LETTER SMALL T;Lm;0;L;<super> 0074;;;;N;;;;;
+1D58;MODIFIER LETTER SMALL U;Lm;0;L;<super> 0075;;;;N;;;;;
+1D59;MODIFIER LETTER SMALL SIDEWAYS U;Lm;0;L;<super> 1D1D;;;;N;;;;;
+1D5A;MODIFIER LETTER SMALL TURNED M;Lm;0;L;<super> 026F;;;;N;;;;;
+1D5B;MODIFIER LETTER SMALL V;Lm;0;L;<super> 0076;;;;N;;;;;
+1D5C;MODIFIER LETTER SMALL AIN;Lm;0;L;<super> 1D25;;;;N;;;;;
+1D5D;MODIFIER LETTER SMALL BETA;Lm;0;L;<super> 03B2;;;;N;;;;;
+1D5E;MODIFIER LETTER SMALL GREEK GAMMA;Lm;0;L;<super> 03B3;;;;N;;;;;
+1D5F;MODIFIER LETTER SMALL DELTA;Lm;0;L;<super> 03B4;;;;N;;;;;
+1D60;MODIFIER LETTER SMALL GREEK PHI;Lm;0;L;<super> 03C6;;;;N;;;;;
+1D61;MODIFIER LETTER SMALL CHI;Lm;0;L;<super> 03C7;;;;N;;;;;
+1D62;LATIN SUBSCRIPT SMALL LETTER I;Lm;0;L;<sub> 0069;;;;N;;;;;
+1D63;LATIN SUBSCRIPT SMALL LETTER R;Lm;0;L;<sub> 0072;;;;N;;;;;
+1D64;LATIN SUBSCRIPT SMALL LETTER U;Lm;0;L;<sub> 0075;;;;N;;;;;
+1D65;LATIN SUBSCRIPT SMALL LETTER V;Lm;0;L;<sub> 0076;;;;N;;;;;
+1D66;GREEK SUBSCRIPT SMALL LETTER BETA;Lm;0;L;<sub> 03B2;;;;N;;;;;
+1D67;GREEK SUBSCRIPT SMALL LETTER GAMMA;Lm;0;L;<sub> 03B3;;;;N;;;;;
+1D68;GREEK SUBSCRIPT SMALL LETTER RHO;Lm;0;L;<sub> 03C1;;;;N;;;;;
+1D69;GREEK SUBSCRIPT SMALL LETTER PHI;Lm;0;L;<sub> 03C6;;;;N;;;;;
+1D6A;GREEK SUBSCRIPT SMALL LETTER CHI;Lm;0;L;<sub> 03C7;;;;N;;;;;
+1D6B;LATIN SMALL LETTER UE;Ll;0;L;;;;;N;;;;;
+1D6C;LATIN SMALL LETTER B WITH MIDDLE TILDE;Ll;0;L;;;;;N;;;;;
+1D6D;LATIN SMALL LETTER D WITH MIDDLE TILDE;Ll;0;L;;;;;N;;;;;
+1D6E;LATIN SMALL LETTER F WITH MIDDLE TILDE;Ll;0;L;;;;;N;;;;;
+1D6F;LATIN SMALL LETTER M WITH MIDDLE TILDE;Ll;0;L;;;;;N;;;;;
+1D70;LATIN SMALL LETTER N WITH MIDDLE TILDE;Ll;0;L;;;;;N;;;;;
+1D71;LATIN SMALL LETTER P WITH MIDDLE TILDE;Ll;0;L;;;;;N;;;;;
+1D72;LATIN SMALL LETTER R WITH MIDDLE TILDE;Ll;0;L;;;;;N;;;;;
+1D73;LATIN SMALL LETTER R WITH FISHHOOK AND MIDDLE TILDE;Ll;0;L;;;;;N;;;;;
+1D74;LATIN SMALL LETTER S WITH MIDDLE TILDE;Ll;0;L;;;;;N;;;;;
+1D75;LATIN SMALL LETTER T WITH MIDDLE TILDE;Ll;0;L;;;;;N;;;;;
+1D76;LATIN SMALL LETTER Z WITH MIDDLE TILDE;Ll;0;L;;;;;N;;;;;
+1D77;LATIN SMALL LETTER TURNED G;Ll;0;L;;;;;N;;;;;
+1D78;MODIFIER LETTER CYRILLIC EN;Lm;0;L;<super> 043D;;;;N;;;;;
+1D79;LATIN SMALL LETTER INSULAR G;Ll;0;L;;;;;N;;;A77D;;A77D
+1D7A;LATIN SMALL LETTER TH WITH STRIKETHROUGH;Ll;0;L;;;;;N;;;;;
+1D7B;LATIN SMALL CAPITAL LETTER I WITH STROKE;Ll;0;L;;;;;N;;;;;
+1D7C;LATIN SMALL LETTER IOTA WITH STROKE;Ll;0;L;;;;;N;;;;;
+1D7D;LATIN SMALL LETTER P WITH STROKE;Ll;0;L;;;;;N;;;2C63;;2C63
+1D7E;LATIN SMALL CAPITAL LETTER U WITH STROKE;Ll;0;L;;;;;N;;;;;
+1D7F;LATIN SMALL LETTER UPSILON WITH STROKE;Ll;0;L;;;;;N;;;;;
+1D80;LATIN SMALL LETTER B WITH PALATAL HOOK;Ll;0;L;;;;;N;;;;;
+1D81;LATIN SMALL LETTER D WITH PALATAL HOOK;Ll;0;L;;;;;N;;;;;
+1D82;LATIN SMALL LETTER F WITH PALATAL HOOK;Ll;0;L;;;;;N;;;;;
+1D83;LATIN SMALL LETTER G WITH PALATAL HOOK;Ll;0;L;;;;;N;;;;;
+1D84;LATIN SMALL LETTER K WITH PALATAL HOOK;Ll;0;L;;;;;N;;;;;
+1D85;LATIN SMALL LETTER L WITH PALATAL HOOK;Ll;0;L;;;;;N;;;;;
+1D86;LATIN SMALL LETTER M WITH PALATAL HOOK;Ll;0;L;;;;;N;;;;;
+1D87;LATIN SMALL LETTER N WITH PALATAL HOOK;Ll;0;L;;;;;N;;;;;
+1D88;LATIN SMALL LETTER P WITH PALATAL HOOK;Ll;0;L;;;;;N;;;;;
+1D89;LATIN SMALL LETTER R WITH PALATAL HOOK;Ll;0;L;;;;;N;;;;;
+1D8A;LATIN SMALL LETTER S WITH PALATAL HOOK;Ll;0;L;;;;;N;;;;;
+1D8B;LATIN SMALL LETTER ESH WITH PALATAL HOOK;Ll;0;L;;;;;N;;;;;
+1D8C;LATIN SMALL LETTER V WITH PALATAL HOOK;Ll;0;L;;;;;N;;;;;
+1D8D;LATIN SMALL LETTER X WITH PALATAL HOOK;Ll;0;L;;;;;N;;;;;
+1D8E;LATIN SMALL LETTER Z WITH PALATAL HOOK;Ll;0;L;;;;;N;;;;;
+1D8F;LATIN SMALL LETTER A WITH RETROFLEX HOOK;Ll;0;L;;;;;N;;;;;
+1D90;LATIN SMALL LETTER ALPHA WITH RETROFLEX HOOK;Ll;0;L;;;;;N;;;;;
+1D91;LATIN SMALL LETTER D WITH HOOK AND TAIL;Ll;0;L;;;;;N;;;;;
+1D92;LATIN SMALL LETTER E WITH RETROFLEX HOOK;Ll;0;L;;;;;N;;;;;
+1D93;LATIN SMALL LETTER OPEN E WITH RETROFLEX HOOK;Ll;0;L;;;;;N;;;;;
+1D94;LATIN SMALL LETTER REVERSED OPEN E WITH RETROFLEX HOOK;Ll;0;L;;;;;N;;;;;
+1D95;LATIN SMALL LETTER SCHWA WITH RETROFLEX HOOK;Ll;0;L;;;;;N;;;;;
+1D96;LATIN SMALL LETTER I WITH RETROFLEX HOOK;Ll;0;L;;;;;N;;;;;
+1D97;LATIN SMALL LETTER OPEN O WITH RETROFLEX HOOK;Ll;0;L;;;;;N;;;;;
+1D98;LATIN SMALL LETTER ESH WITH RETROFLEX HOOK;Ll;0;L;;;;;N;;;;;
+1D99;LATIN SMALL LETTER U WITH RETROFLEX HOOK;Ll;0;L;;;;;N;;;;;
+1D9A;LATIN SMALL LETTER EZH WITH RETROFLEX HOOK;Ll;0;L;;;;;N;;;;;
+1D9B;MODIFIER LETTER SMALL TURNED ALPHA;Lm;0;L;<super> 0252;;;;N;;;;;
+1D9C;MODIFIER LETTER SMALL C;Lm;0;L;<super> 0063;;;;N;;;;;
+1D9D;MODIFIER LETTER SMALL C WITH CURL;Lm;0;L;<super> 0255;;;;N;;;;;
+1D9E;MODIFIER LETTER SMALL ETH;Lm;0;L;<super> 00F0;;;;N;;;;;
+1D9F;MODIFIER LETTER SMALL REVERSED OPEN E;Lm;0;L;<super> 025C;;;;N;;;;;
+1DA0;MODIFIER LETTER SMALL F;Lm;0;L;<super> 0066;;;;N;;;;;
+1DA1;MODIFIER LETTER SMALL DOTLESS J WITH STROKE;Lm;0;L;<super> 025F;;;;N;;;;;
+1DA2;MODIFIER LETTER SMALL SCRIPT G;Lm;0;L;<super> 0261;;;;N;;;;;
+1DA3;MODIFIER LETTER SMALL TURNED H;Lm;0;L;<super> 0265;;;;N;;;;;
+1DA4;MODIFIER LETTER SMALL I WITH STROKE;Lm;0;L;<super> 0268;;;;N;;;;;
+1DA5;MODIFIER LETTER SMALL IOTA;Lm;0;L;<super> 0269;;;;N;;;;;
+1DA6;MODIFIER LETTER SMALL CAPITAL I;Lm;0;L;<super> 026A;;;;N;;;;;
+1DA7;MODIFIER LETTER SMALL CAPITAL I WITH STROKE;Lm;0;L;<super> 1D7B;;;;N;;;;;
+1DA8;MODIFIER LETTER SMALL J WITH CROSSED-TAIL;Lm;0;L;<super> 029D;;;;N;;;;;
+1DA9;MODIFIER LETTER SMALL L WITH RETROFLEX HOOK;Lm;0;L;<super> 026D;;;;N;;;;;
+1DAA;MODIFIER LETTER SMALL L WITH PALATAL HOOK;Lm;0;L;<super> 1D85;;;;N;;;;;
+1DAB;MODIFIER LETTER SMALL CAPITAL L;Lm;0;L;<super> 029F;;;;N;;;;;
+1DAC;MODIFIER LETTER SMALL M WITH HOOK;Lm;0;L;<super> 0271;;;;N;;;;;
+1DAD;MODIFIER LETTER SMALL TURNED M WITH LONG LEG;Lm;0;L;<super> 0270;;;;N;;;;;
+1DAE;MODIFIER LETTER SMALL N WITH LEFT HOOK;Lm;0;L;<super> 0272;;;;N;;;;;
+1DAF;MODIFIER LETTER SMALL N WITH RETROFLEX HOOK;Lm;0;L;<super> 0273;;;;N;;;;;
+1DB0;MODIFIER LETTER SMALL CAPITAL N;Lm;0;L;<super> 0274;;;;N;;;;;
+1DB1;MODIFIER LETTER SMALL BARRED O;Lm;0;L;<super> 0275;;;;N;;;;;
+1DB2;MODIFIER LETTER SMALL PHI;Lm;0;L;<super> 0278;;;;N;;;;;
+1DB3;MODIFIER LETTER SMALL S WITH HOOK;Lm;0;L;<super> 0282;;;;N;;;;;
+1DB4;MODIFIER LETTER SMALL ESH;Lm;0;L;<super> 0283;;;;N;;;;;
+1DB5;MODIFIER LETTER SMALL T WITH PALATAL HOOK;Lm;0;L;<super> 01AB;;;;N;;;;;
+1DB6;MODIFIER LETTER SMALL U BAR;Lm;0;L;<super> 0289;;;;N;;;;;
+1DB7;MODIFIER LETTER SMALL UPSILON;Lm;0;L;<super> 028A;;;;N;;;;;
+1DB8;MODIFIER LETTER SMALL CAPITAL U;Lm;0;L;<super> 1D1C;;;;N;;;;;
+1DB9;MODIFIER LETTER SMALL V WITH HOOK;Lm;0;L;<super> 028B;;;;N;;;;;
+1DBA;MODIFIER LETTER SMALL TURNED V;Lm;0;L;<super> 028C;;;;N;;;;;
+1DBB;MODIFIER LETTER SMALL Z;Lm;0;L;<super> 007A;;;;N;;;;;
+1DBC;MODIFIER LETTER SMALL Z WITH RETROFLEX HOOK;Lm;0;L;<super> 0290;;;;N;;;;;
+1DBD;MODIFIER LETTER SMALL Z WITH CURL;Lm;0;L;<super> 0291;;;;N;;;;;
+1DBE;MODIFIER LETTER SMALL EZH;Lm;0;L;<super> 0292;;;;N;;;;;
+1DBF;MODIFIER LETTER SMALL THETA;Lm;0;L;<super> 03B8;;;;N;;;;;
+1DC0;COMBINING DOTTED GRAVE ACCENT;Mn;230;NSM;;;;;N;;;;;
+1DC1;COMBINING DOTTED ACUTE ACCENT;Mn;230;NSM;;;;;N;;;;;
+1DC2;COMBINING SNAKE BELOW;Mn;220;NSM;;;;;N;;;;;
+1DC3;COMBINING SUSPENSION MARK;Mn;230;NSM;;;;;N;;;;;
+1DC4;COMBINING MACRON-ACUTE;Mn;230;NSM;;;;;N;;;;;
+1DC5;COMBINING GRAVE-MACRON;Mn;230;NSM;;;;;N;;;;;
+1DC6;COMBINING MACRON-GRAVE;Mn;230;NSM;;;;;N;;;;;
+1DC7;COMBINING ACUTE-MACRON;Mn;230;NSM;;;;;N;;;;;
+1DC8;COMBINING GRAVE-ACUTE-GRAVE;Mn;230;NSM;;;;;N;;;;;
+1DC9;COMBINING ACUTE-GRAVE-ACUTE;Mn;230;NSM;;;;;N;;;;;
+1DCA;COMBINING LATIN SMALL LETTER R BELOW;Mn;220;NSM;;;;;N;;;;;
+1DCB;COMBINING BREVE-MACRON;Mn;230;NSM;;;;;N;;;;;
+1DCC;COMBINING MACRON-BREVE;Mn;230;NSM;;;;;N;;;;;
+1DCD;COMBINING DOUBLE CIRCUMFLEX ABOVE;Mn;234;NSM;;;;;N;;;;;
+1DCE;COMBINING OGONEK ABOVE;Mn;214;NSM;;;;;N;;;;;
+1DCF;COMBINING ZIGZAG BELOW;Mn;220;NSM;;;;;N;;;;;
+1DD0;COMBINING IS BELOW;Mn;202;NSM;;;;;N;;;;;
+1DD1;COMBINING UR ABOVE;Mn;230;NSM;;;;;N;;;;;
+1DD2;COMBINING US ABOVE;Mn;230;NSM;;;;;N;;;;;
+1DD3;COMBINING LATIN SMALL LETTER FLATTENED OPEN A ABOVE;Mn;230;NSM;;;;;N;;;;;
+1DD4;COMBINING LATIN SMALL LETTER AE;Mn;230;NSM;;;;;N;;;;;
+1DD5;COMBINING LATIN SMALL LETTER AO;Mn;230;NSM;;;;;N;;;;;
+1DD6;COMBINING LATIN SMALL LETTER AV;Mn;230;NSM;;;;;N;;;;;
+1DD7;COMBINING LATIN SMALL LETTER C CEDILLA;Mn;230;NSM;;;;;N;;;;;
+1DD8;COMBINING LATIN SMALL LETTER INSULAR D;Mn;230;NSM;;;;;N;;;;;
+1DD9;COMBINING LATIN SMALL LETTER ETH;Mn;230;NSM;;;;;N;;;;;
+1DDA;COMBINING LATIN SMALL LETTER G;Mn;230;NSM;;;;;N;;;;;
+1DDB;COMBINING LATIN LETTER SMALL CAPITAL G;Mn;230;NSM;;;;;N;;;;;
+1DDC;COMBINING LATIN SMALL LETTER K;Mn;230;NSM;;;;;N;;;;;
+1DDD;COMBINING LATIN SMALL LETTER L;Mn;230;NSM;;;;;N;;;;;
+1DDE;COMBINING LATIN LETTER SMALL CAPITAL L;Mn;230;NSM;;;;;N;;;;;
+1DDF;COMBINING LATIN LETTER SMALL CAPITAL M;Mn;230;NSM;;;;;N;;;;;
+1DE0;COMBINING LATIN SMALL LETTER N;Mn;230;NSM;;;;;N;;;;;
+1DE1;COMBINING LATIN LETTER SMALL CAPITAL N;Mn;230;NSM;;;;;N;;;;;
+1DE2;COMBINING LATIN LETTER SMALL CAPITAL R;Mn;230;NSM;;;;;N;;;;;
+1DE3;COMBINING LATIN SMALL LETTER R ROTUNDA;Mn;230;NSM;;;;;N;;;;;
+1DE4;COMBINING LATIN SMALL LETTER S;Mn;230;NSM;;;;;N;;;;;
+1DE5;COMBINING LATIN SMALL LETTER LONG S;Mn;230;NSM;;;;;N;;;;;
+1DE6;COMBINING LATIN SMALL LETTER Z;Mn;230;NSM;;;;;N;;;;;
+1DFC;COMBINING DOUBLE INVERTED BREVE BELOW;Mn;233;NSM;;;;;N;;;;;
+1DFD;COMBINING ALMOST EQUAL TO BELOW;Mn;220;NSM;;;;;N;;;;;
+1DFE;COMBINING LEFT ARROWHEAD ABOVE;Mn;230;NSM;;;;;N;;;;;
+1DFF;COMBINING RIGHT ARROWHEAD AND DOWN ARROWHEAD BELOW;Mn;220;NSM;;;;;N;;;;;
+1E00;LATIN CAPITAL LETTER A WITH RING BELOW;Lu;0;L;0041 0325;;;;N;;;;1E01;
+1E01;LATIN SMALL LETTER A WITH RING BELOW;Ll;0;L;0061 0325;;;;N;;;1E00;;1E00
+1E02;LATIN CAPITAL LETTER B WITH DOT ABOVE;Lu;0;L;0042 0307;;;;N;;;;1E03;
+1E03;LATIN SMALL LETTER B WITH DOT ABOVE;Ll;0;L;0062 0307;;;;N;;;1E02;;1E02
+1E04;LATIN CAPITAL LETTER B WITH DOT BELOW;Lu;0;L;0042 0323;;;;N;;;;1E05;
+1E05;LATIN SMALL LETTER B WITH DOT BELOW;Ll;0;L;0062 0323;;;;N;;;1E04;;1E04
+1E06;LATIN CAPITAL LETTER B WITH LINE BELOW;Lu;0;L;0042 0331;;;;N;;;;1E07;
+1E07;LATIN SMALL LETTER B WITH LINE BELOW;Ll;0;L;0062 0331;;;;N;;;1E06;;1E06
+1E08;LATIN CAPITAL LETTER C WITH CEDILLA AND ACUTE;Lu;0;L;00C7 0301;;;;N;;;;1E09;
+1E09;LATIN SMALL LETTER C WITH CEDILLA AND ACUTE;Ll;0;L;00E7 0301;;;;N;;;1E08;;1E08
+1E0A;LATIN CAPITAL LETTER D WITH DOT ABOVE;Lu;0;L;0044 0307;;;;N;;;;1E0B;
+1E0B;LATIN SMALL LETTER D WITH DOT ABOVE;Ll;0;L;0064 0307;;;;N;;;1E0A;;1E0A
+1E0C;LATIN CAPITAL LETTER D WITH DOT BELOW;Lu;0;L;0044 0323;;;;N;;;;1E0D;
+1E0D;LATIN SMALL LETTER D WITH DOT BELOW;Ll;0;L;0064 0323;;;;N;;;1E0C;;1E0C
+1E0E;LATIN CAPITAL LETTER D WITH LINE BELOW;Lu;0;L;0044 0331;;;;N;;;;1E0F;
+1E0F;LATIN SMALL LETTER D WITH LINE BELOW;Ll;0;L;0064 0331;;;;N;;;1E0E;;1E0E
+1E10;LATIN CAPITAL LETTER D WITH CEDILLA;Lu;0;L;0044 0327;;;;N;;;;1E11;
+1E11;LATIN SMALL LETTER D WITH CEDILLA;Ll;0;L;0064 0327;;;;N;;;1E10;;1E10
+1E12;LATIN CAPITAL LETTER D WITH CIRCUMFLEX BELOW;Lu;0;L;0044 032D;;;;N;;;;1E13;
+1E13;LATIN SMALL LETTER D WITH CIRCUMFLEX BELOW;Ll;0;L;0064 032D;;;;N;;;1E12;;1E12
+1E14;LATIN CAPITAL LETTER E WITH MACRON AND GRAVE;Lu;0;L;0112 0300;;;;N;;;;1E15;
+1E15;LATIN SMALL LETTER E WITH MACRON AND GRAVE;Ll;0;L;0113 0300;;;;N;;;1E14;;1E14
+1E16;LATIN CAPITAL LETTER E WITH MACRON AND ACUTE;Lu;0;L;0112 0301;;;;N;;;;1E17;
+1E17;LATIN SMALL LETTER E WITH MACRON AND ACUTE;Ll;0;L;0113 0301;;;;N;;;1E16;;1E16
+1E18;LATIN CAPITAL LETTER E WITH CIRCUMFLEX BELOW;Lu;0;L;0045 032D;;;;N;;;;1E19;
+1E19;LATIN SMALL LETTER E WITH CIRCUMFLEX BELOW;Ll;0;L;0065 032D;;;;N;;;1E18;;1E18
+1E1A;LATIN CAPITAL LETTER E WITH TILDE BELOW;Lu;0;L;0045 0330;;;;N;;;;1E1B;
+1E1B;LATIN SMALL LETTER E WITH TILDE BELOW;Ll;0;L;0065 0330;;;;N;;;1E1A;;1E1A
+1E1C;LATIN CAPITAL LETTER E WITH CEDILLA AND BREVE;Lu;0;L;0228 0306;;;;N;;;;1E1D;
+1E1D;LATIN SMALL LETTER E WITH CEDILLA AND BREVE;Ll;0;L;0229 0306;;;;N;;;1E1C;;1E1C
+1E1E;LATIN CAPITAL LETTER F WITH DOT ABOVE;Lu;0;L;0046 0307;;;;N;;;;1E1F;
+1E1F;LATIN SMALL LETTER F WITH DOT ABOVE;Ll;0;L;0066 0307;;;;N;;;1E1E;;1E1E
+1E20;LATIN CAPITAL LETTER G WITH MACRON;Lu;0;L;0047 0304;;;;N;;;;1E21;
+1E21;LATIN SMALL LETTER G WITH MACRON;Ll;0;L;0067 0304;;;;N;;;1E20;;1E20
+1E22;LATIN CAPITAL LETTER H WITH DOT ABOVE;Lu;0;L;0048 0307;;;;N;;;;1E23;
+1E23;LATIN SMALL LETTER H WITH DOT ABOVE;Ll;0;L;0068 0307;;;;N;;;1E22;;1E22
+1E24;LATIN CAPITAL LETTER H WITH DOT BELOW;Lu;0;L;0048 0323;;;;N;;;;1E25;
+1E25;LATIN SMALL LETTER H WITH DOT BELOW;Ll;0;L;0068 0323;;;;N;;;1E24;;1E24
+1E26;LATIN CAPITAL LETTER H WITH DIAERESIS;Lu;0;L;0048 0308;;;;N;;;;1E27;
+1E27;LATIN SMALL LETTER H WITH DIAERESIS;Ll;0;L;0068 0308;;;;N;;;1E26;;1E26
+1E28;LATIN CAPITAL LETTER H WITH CEDILLA;Lu;0;L;0048 0327;;;;N;;;;1E29;
+1E29;LATIN SMALL LETTER H WITH CEDILLA;Ll;0;L;0068 0327;;;;N;;;1E28;;1E28
+1E2A;LATIN CAPITAL LETTER H WITH BREVE BELOW;Lu;0;L;0048 032E;;;;N;;;;1E2B;
+1E2B;LATIN SMALL LETTER H WITH BREVE BELOW;Ll;0;L;0068 032E;;;;N;;;1E2A;;1E2A
+1E2C;LATIN CAPITAL LETTER I WITH TILDE BELOW;Lu;0;L;0049 0330;;;;N;;;;1E2D;
+1E2D;LATIN SMALL LETTER I WITH TILDE BELOW;Ll;0;L;0069 0330;;;;N;;;1E2C;;1E2C
+1E2E;LATIN CAPITAL LETTER I WITH DIAERESIS AND ACUTE;Lu;0;L;00CF 0301;;;;N;;;;1E2F;
+1E2F;LATIN SMALL LETTER I WITH DIAERESIS AND ACUTE;Ll;0;L;00EF 0301;;;;N;;;1E2E;;1E2E
+1E30;LATIN CAPITAL LETTER K WITH ACUTE;Lu;0;L;004B 0301;;;;N;;;;1E31;
+1E31;LATIN SMALL LETTER K WITH ACUTE;Ll;0;L;006B 0301;;;;N;;;1E30;;1E30
+1E32;LATIN CAPITAL LETTER K WITH DOT BELOW;Lu;0;L;004B 0323;;;;N;;;;1E33;
+1E33;LATIN SMALL LETTER K WITH DOT BELOW;Ll;0;L;006B 0323;;;;N;;;1E32;;1E32
+1E34;LATIN CAPITAL LETTER K WITH LINE BELOW;Lu;0;L;004B 0331;;;;N;;;;1E35;
+1E35;LATIN SMALL LETTER K WITH LINE BELOW;Ll;0;L;006B 0331;;;;N;;;1E34;;1E34
+1E36;LATIN CAPITAL LETTER L WITH DOT BELOW;Lu;0;L;004C 0323;;;;N;;;;1E37;
+1E37;LATIN SMALL LETTER L WITH DOT BELOW;Ll;0;L;006C 0323;;;;N;;;1E36;;1E36
+1E38;LATIN CAPITAL LETTER L WITH DOT BELOW AND MACRON;Lu;0;L;1E36 0304;;;;N;;;;1E39;
+1E39;LATIN SMALL LETTER L WITH DOT BELOW AND MACRON;Ll;0;L;1E37 0304;;;;N;;;1E38;;1E38
+1E3A;LATIN CAPITAL LETTER L WITH LINE BELOW;Lu;0;L;004C 0331;;;;N;;;;1E3B;
+1E3B;LATIN SMALL LETTER L WITH LINE BELOW;Ll;0;L;006C 0331;;;;N;;;1E3A;;1E3A
+1E3C;LATIN CAPITAL LETTER L WITH CIRCUMFLEX BELOW;Lu;0;L;004C 032D;;;;N;;;;1E3D;
+1E3D;LATIN SMALL LETTER L WITH CIRCUMFLEX BELOW;Ll;0;L;006C 032D;;;;N;;;1E3C;;1E3C
+1E3E;LATIN CAPITAL LETTER M WITH ACUTE;Lu;0;L;004D 0301;;;;N;;;;1E3F;
+1E3F;LATIN SMALL LETTER M WITH ACUTE;Ll;0;L;006D 0301;;;;N;;;1E3E;;1E3E
+1E40;LATIN CAPITAL LETTER M WITH DOT ABOVE;Lu;0;L;004D 0307;;;;N;;;;1E41;
+1E41;LATIN SMALL LETTER M WITH DOT ABOVE;Ll;0;L;006D 0307;;;;N;;;1E40;;1E40
+1E42;LATIN CAPITAL LETTER M WITH DOT BELOW;Lu;0;L;004D 0323;;;;N;;;;1E43;
+1E43;LATIN SMALL LETTER M WITH DOT BELOW;Ll;0;L;006D 0323;;;;N;;;1E42;;1E42
+1E44;LATIN CAPITAL LETTER N WITH DOT ABOVE;Lu;0;L;004E 0307;;;;N;;;;1E45;
+1E45;LATIN SMALL LETTER N WITH DOT ABOVE;Ll;0;L;006E 0307;;;;N;;;1E44;;1E44
+1E46;LATIN CAPITAL LETTER N WITH DOT BELOW;Lu;0;L;004E 0323;;;;N;;;;1E47;
+1E47;LATIN SMALL LETTER N WITH DOT BELOW;Ll;0;L;006E 0323;;;;N;;;1E46;;1E46
+1E48;LATIN CAPITAL LETTER N WITH LINE BELOW;Lu;0;L;004E 0331;;;;N;;;;1E49;
+1E49;LATIN SMALL LETTER N WITH LINE BELOW;Ll;0;L;006E 0331;;;;N;;;1E48;;1E48
+1E4A;LATIN CAPITAL LETTER N WITH CIRCUMFLEX BELOW;Lu;0;L;004E 032D;;;;N;;;;1E4B;
+1E4B;LATIN SMALL LETTER N WITH CIRCUMFLEX BELOW;Ll;0;L;006E 032D;;;;N;;;1E4A;;1E4A
+1E4C;LATIN CAPITAL LETTER O WITH TILDE AND ACUTE;Lu;0;L;00D5 0301;;;;N;;;;1E4D;
+1E4D;LATIN SMALL LETTER O WITH TILDE AND ACUTE;Ll;0;L;00F5 0301;;;;N;;;1E4C;;1E4C
+1E4E;LATIN CAPITAL LETTER O WITH TILDE AND DIAERESIS;Lu;0;L;00D5 0308;;;;N;;;;1E4F;
+1E4F;LATIN SMALL LETTER O WITH TILDE AND DIAERESIS;Ll;0;L;00F5 0308;;;;N;;;1E4E;;1E4E
+1E50;LATIN CAPITAL LETTER O WITH MACRON AND GRAVE;Lu;0;L;014C 0300;;;;N;;;;1E51;
+1E51;LATIN SMALL LETTER O WITH MACRON AND GRAVE;Ll;0;L;014D 0300;;;;N;;;1E50;;1E50
+1E52;LATIN CAPITAL LETTER O WITH MACRON AND ACUTE;Lu;0;L;014C 0301;;;;N;;;;1E53;
+1E53;LATIN SMALL LETTER O WITH MACRON AND ACUTE;Ll;0;L;014D 0301;;;;N;;;1E52;;1E52
+1E54;LATIN CAPITAL LETTER P WITH ACUTE;Lu;0;L;0050 0301;;;;N;;;;1E55;
+1E55;LATIN SMALL LETTER P WITH ACUTE;Ll;0;L;0070 0301;;;;N;;;1E54;;1E54
+1E56;LATIN CAPITAL LETTER P WITH DOT ABOVE;Lu;0;L;0050 0307;;;;N;;;;1E57;
+1E57;LATIN SMALL LETTER P WITH DOT ABOVE;Ll;0;L;0070 0307;;;;N;;;1E56;;1E56
+1E58;LATIN CAPITAL LETTER R WITH DOT ABOVE;Lu;0;L;0052 0307;;;;N;;;;1E59;
+1E59;LATIN SMALL LETTER R WITH DOT ABOVE;Ll;0;L;0072 0307;;;;N;;;1E58;;1E58
+1E5A;LATIN CAPITAL LETTER R WITH DOT BELOW;Lu;0;L;0052 0323;;;;N;;;;1E5B;
+1E5B;LATIN SMALL LETTER R WITH DOT BELOW;Ll;0;L;0072 0323;;;;N;;;1E5A;;1E5A
+1E5C;LATIN CAPITAL LETTER R WITH DOT BELOW AND MACRON;Lu;0;L;1E5A 0304;;;;N;;;;1E5D;
+1E5D;LATIN SMALL LETTER R WITH DOT BELOW AND MACRON;Ll;0;L;1E5B 0304;;;;N;;;1E5C;;1E5C
+1E5E;LATIN CAPITAL LETTER R WITH LINE BELOW;Lu;0;L;0052 0331;;;;N;;;;1E5F;
+1E5F;LATIN SMALL LETTER R WITH LINE BELOW;Ll;0;L;0072 0331;;;;N;;;1E5E;;1E5E
+1E60;LATIN CAPITAL LETTER S WITH DOT ABOVE;Lu;0;L;0053 0307;;;;N;;;;1E61;
+1E61;LATIN SMALL LETTER S WITH DOT ABOVE;Ll;0;L;0073 0307;;;;N;;;1E60;;1E60
+1E62;LATIN CAPITAL LETTER S WITH DOT BELOW;Lu;0;L;0053 0323;;;;N;;;;1E63;
+1E63;LATIN SMALL LETTER S WITH DOT BELOW;Ll;0;L;0073 0323;;;;N;;;1E62;;1E62
+1E64;LATIN CAPITAL LETTER S WITH ACUTE AND DOT ABOVE;Lu;0;L;015A 0307;;;;N;;;;1E65;
+1E65;LATIN SMALL LETTER S WITH ACUTE AND DOT ABOVE;Ll;0;L;015B 0307;;;;N;;;1E64;;1E64
+1E66;LATIN CAPITAL LETTER S WITH CARON AND DOT ABOVE;Lu;0;L;0160 0307;;;;N;;;;1E67;
+1E67;LATIN SMALL LETTER S WITH CARON AND DOT ABOVE;Ll;0;L;0161 0307;;;;N;;;1E66;;1E66
+1E68;LATIN CAPITAL LETTER S WITH DOT BELOW AND DOT ABOVE;Lu;0;L;1E62 0307;;;;N;;;;1E69;
+1E69;LATIN SMALL LETTER S WITH DOT BELOW AND DOT ABOVE;Ll;0;L;1E63 0307;;;;N;;;1E68;;1E68
+1E6A;LATIN CAPITAL LETTER T WITH DOT ABOVE;Lu;0;L;0054 0307;;;;N;;;;1E6B;
+1E6B;LATIN SMALL LETTER T WITH DOT ABOVE;Ll;0;L;0074 0307;;;;N;;;1E6A;;1E6A
+1E6C;LATIN CAPITAL LETTER T WITH DOT BELOW;Lu;0;L;0054 0323;;;;N;;;;1E6D;
+1E6D;LATIN SMALL LETTER T WITH DOT BELOW;Ll;0;L;0074 0323;;;;N;;;1E6C;;1E6C
+1E6E;LATIN CAPITAL LETTER T WITH LINE BELOW;Lu;0;L;0054 0331;;;;N;;;;1E6F;
+1E6F;LATIN SMALL LETTER T WITH LINE BELOW;Ll;0;L;0074 0331;;;;N;;;1E6E;;1E6E
+1E70;LATIN CAPITAL LETTER T WITH CIRCUMFLEX BELOW;Lu;0;L;0054 032D;;;;N;;;;1E71;
+1E71;LATIN SMALL LETTER T WITH CIRCUMFLEX BELOW;Ll;0;L;0074 032D;;;;N;;;1E70;;1E70
+1E72;LATIN CAPITAL LETTER U WITH DIAERESIS BELOW;Lu;0;L;0055 0324;;;;N;;;;1E73;
+1E73;LATIN SMALL LETTER U WITH DIAERESIS BELOW;Ll;0;L;0075 0324;;;;N;;;1E72;;1E72
+1E74;LATIN CAPITAL LETTER U WITH TILDE BELOW;Lu;0;L;0055 0330;;;;N;;;;1E75;
+1E75;LATIN SMALL LETTER U WITH TILDE BELOW;Ll;0;L;0075 0330;;;;N;;;1E74;;1E74
+1E76;LATIN CAPITAL LETTER U WITH CIRCUMFLEX BELOW;Lu;0;L;0055 032D;;;;N;;;;1E77;
+1E77;LATIN SMALL LETTER U WITH CIRCUMFLEX BELOW;Ll;0;L;0075 032D;;;;N;;;1E76;;1E76
+1E78;LATIN CAPITAL LETTER U WITH TILDE AND ACUTE;Lu;0;L;0168 0301;;;;N;;;;1E79;
+1E79;LATIN SMALL LETTER U WITH TILDE AND ACUTE;Ll;0;L;0169 0301;;;;N;;;1E78;;1E78
+1E7A;LATIN CAPITAL LETTER U WITH MACRON AND DIAERESIS;Lu;0;L;016A 0308;;;;N;;;;1E7B;
+1E7B;LATIN SMALL LETTER U WITH MACRON AND DIAERESIS;Ll;0;L;016B 0308;;;;N;;;1E7A;;1E7A
+1E7C;LATIN CAPITAL LETTER V WITH TILDE;Lu;0;L;0056 0303;;;;N;;;;1E7D;
+1E7D;LATIN SMALL LETTER V WITH TILDE;Ll;0;L;0076 0303;;;;N;;;1E7C;;1E7C
+1E7E;LATIN CAPITAL LETTER V WITH DOT BELOW;Lu;0;L;0056 0323;;;;N;;;;1E7F;
+1E7F;LATIN SMALL LETTER V WITH DOT BELOW;Ll;0;L;0076 0323;;;;N;;;1E7E;;1E7E
+1E80;LATIN CAPITAL LETTER W WITH GRAVE;Lu;0;L;0057 0300;;;;N;;;;1E81;
+1E81;LATIN SMALL LETTER W WITH GRAVE;Ll;0;L;0077 0300;;;;N;;;1E80;;1E80
+1E82;LATIN CAPITAL LETTER W WITH ACUTE;Lu;0;L;0057 0301;;;;N;;;;1E83;
+1E83;LATIN SMALL LETTER W WITH ACUTE;Ll;0;L;0077 0301;;;;N;;;1E82;;1E82
+1E84;LATIN CAPITAL LETTER W WITH DIAERESIS;Lu;0;L;0057 0308;;;;N;;;;1E85;
+1E85;LATIN SMALL LETTER W WITH DIAERESIS;Ll;0;L;0077 0308;;;;N;;;1E84;;1E84
+1E86;LATIN CAPITAL LETTER W WITH DOT ABOVE;Lu;0;L;0057 0307;;;;N;;;;1E87;
+1E87;LATIN SMALL LETTER W WITH DOT ABOVE;Ll;0;L;0077 0307;;;;N;;;1E86;;1E86
+1E88;LATIN CAPITAL LETTER W WITH DOT BELOW;Lu;0;L;0057 0323;;;;N;;;;1E89;
+1E89;LATIN SMALL LETTER W WITH DOT BELOW;Ll;0;L;0077 0323;;;;N;;;1E88;;1E88
+1E8A;LATIN CAPITAL LETTER X WITH DOT ABOVE;Lu;0;L;0058 0307;;;;N;;;;1E8B;
+1E8B;LATIN SMALL LETTER X WITH DOT ABOVE;Ll;0;L;0078 0307;;;;N;;;1E8A;;1E8A
+1E8C;LATIN CAPITAL LETTER X WITH DIAERESIS;Lu;0;L;0058 0308;;;;N;;;;1E8D;
+1E8D;LATIN SMALL LETTER X WITH DIAERESIS;Ll;0;L;0078 0308;;;;N;;;1E8C;;1E8C
+1E8E;LATIN CAPITAL LETTER Y WITH DOT ABOVE;Lu;0;L;0059 0307;;;;N;;;;1E8F;
+1E8F;LATIN SMALL LETTER Y WITH DOT ABOVE;Ll;0;L;0079 0307;;;;N;;;1E8E;;1E8E
+1E90;LATIN CAPITAL LETTER Z WITH CIRCUMFLEX;Lu;0;L;005A 0302;;;;N;;;;1E91;
+1E91;LATIN SMALL LETTER Z WITH CIRCUMFLEX;Ll;0;L;007A 0302;;;;N;;;1E90;;1E90
+1E92;LATIN CAPITAL LETTER Z WITH DOT BELOW;Lu;0;L;005A 0323;;;;N;;;;1E93;
+1E93;LATIN SMALL LETTER Z WITH DOT BELOW;Ll;0;L;007A 0323;;;;N;;;1E92;;1E92
+1E94;LATIN CAPITAL LETTER Z WITH LINE BELOW;Lu;0;L;005A 0331;;;;N;;;;1E95;
+1E95;LATIN SMALL LETTER Z WITH LINE BELOW;Ll;0;L;007A 0331;;;;N;;;1E94;;1E94
+1E96;LATIN SMALL LETTER H WITH LINE BELOW;Ll;0;L;0068 0331;;;;N;;;;;
+1E97;LATIN SMALL LETTER T WITH DIAERESIS;Ll;0;L;0074 0308;;;;N;;;;;
+1E98;LATIN SMALL LETTER W WITH RING ABOVE;Ll;0;L;0077 030A;;;;N;;;;;
+1E99;LATIN SMALL LETTER Y WITH RING ABOVE;Ll;0;L;0079 030A;;;;N;;;;;
+1E9A;LATIN SMALL LETTER A WITH RIGHT HALF RING;Ll;0;L;<compat> 0061 02BE;;;;N;;;;;
+1E9B;LATIN SMALL LETTER LONG S WITH DOT ABOVE;Ll;0;L;017F 0307;;;;N;;;1E60;;1E60
+1E9C;LATIN SMALL LETTER LONG S WITH DIAGONAL STROKE;Ll;0;L;;;;;N;;;;;
+1E9D;LATIN SMALL LETTER LONG S WITH HIGH STROKE;Ll;0;L;;;;;N;;;;;
+1E9E;LATIN CAPITAL LETTER SHARP S;Lu;0;L;;;;;N;;;;00DF;
+1E9F;LATIN SMALL LETTER DELTA;Ll;0;L;;;;;N;;;;;
+1EA0;LATIN CAPITAL LETTER A WITH DOT BELOW;Lu;0;L;0041 0323;;;;N;;;;1EA1;
+1EA1;LATIN SMALL LETTER A WITH DOT BELOW;Ll;0;L;0061 0323;;;;N;;;1EA0;;1EA0
+1EA2;LATIN CAPITAL LETTER A WITH HOOK ABOVE;Lu;0;L;0041 0309;;;;N;;;;1EA3;
+1EA3;LATIN SMALL LETTER A WITH HOOK ABOVE;Ll;0;L;0061 0309;;;;N;;;1EA2;;1EA2
+1EA4;LATIN CAPITAL LETTER A WITH CIRCUMFLEX AND ACUTE;Lu;0;L;00C2 0301;;;;N;;;;1EA5;
+1EA5;LATIN SMALL LETTER A WITH CIRCUMFLEX AND ACUTE;Ll;0;L;00E2 0301;;;;N;;;1EA4;;1EA4
+1EA6;LATIN CAPITAL LETTER A WITH CIRCUMFLEX AND GRAVE;Lu;0;L;00C2 0300;;;;N;;;;1EA7;
+1EA7;LATIN SMALL LETTER A WITH CIRCUMFLEX AND GRAVE;Ll;0;L;00E2 0300;;;;N;;;1EA6;;1EA6
+1EA8;LATIN CAPITAL LETTER A WITH CIRCUMFLEX AND HOOK ABOVE;Lu;0;L;00C2 0309;;;;N;;;;1EA9;
+1EA9;LATIN SMALL LETTER A WITH CIRCUMFLEX AND HOOK ABOVE;Ll;0;L;00E2 0309;;;;N;;;1EA8;;1EA8
+1EAA;LATIN CAPITAL LETTER A WITH CIRCUMFLEX AND TILDE;Lu;0;L;00C2 0303;;;;N;;;;1EAB;
+1EAB;LATIN SMALL LETTER A WITH CIRCUMFLEX AND TILDE;Ll;0;L;00E2 0303;;;;N;;;1EAA;;1EAA
+1EAC;LATIN CAPITAL LETTER A WITH CIRCUMFLEX AND DOT BELOW;Lu;0;L;1EA0 0302;;;;N;;;;1EAD;
+1EAD;LATIN SMALL LETTER A WITH CIRCUMFLEX AND DOT BELOW;Ll;0;L;1EA1 0302;;;;N;;;1EAC;;1EAC
+1EAE;LATIN CAPITAL LETTER A WITH BREVE AND ACUTE;Lu;0;L;0102 0301;;;;N;;;;1EAF;
+1EAF;LATIN SMALL LETTER A WITH BREVE AND ACUTE;Ll;0;L;0103 0301;;;;N;;;1EAE;;1EAE
+1EB0;LATIN CAPITAL LETTER A WITH BREVE AND GRAVE;Lu;0;L;0102 0300;;;;N;;;;1EB1;
+1EB1;LATIN SMALL LETTER A WITH BREVE AND GRAVE;Ll;0;L;0103 0300;;;;N;;;1EB0;;1EB0
+1EB2;LATIN CAPITAL LETTER A WITH BREVE AND HOOK ABOVE;Lu;0;L;0102 0309;;;;N;;;;1EB3;
+1EB3;LATIN SMALL LETTER A WITH BREVE AND HOOK ABOVE;Ll;0;L;0103 0309;;;;N;;;1EB2;;1EB2
+1EB4;LATIN CAPITAL LETTER A WITH BREVE AND TILDE;Lu;0;L;0102 0303;;;;N;;;;1EB5;
+1EB5;LATIN SMALL LETTER A WITH BREVE AND TILDE;Ll;0;L;0103 0303;;;;N;;;1EB4;;1EB4
+1EB6;LATIN CAPITAL LETTER A WITH BREVE AND DOT BELOW;Lu;0;L;1EA0 0306;;;;N;;;;1EB7;
+1EB7;LATIN SMALL LETTER A WITH BREVE AND DOT BELOW;Ll;0;L;1EA1 0306;;;;N;;;1EB6;;1EB6
+1EB8;LATIN CAPITAL LETTER E WITH DOT BELOW;Lu;0;L;0045 0323;;;;N;;;;1EB9;
+1EB9;LATIN SMALL LETTER E WITH DOT BELOW;Ll;0;L;0065 0323;;;;N;;;1EB8;;1EB8
+1EBA;LATIN CAPITAL LETTER E WITH HOOK ABOVE;Lu;0;L;0045 0309;;;;N;;;;1EBB;
+1EBB;LATIN SMALL LETTER E WITH HOOK ABOVE;Ll;0;L;0065 0309;;;;N;;;1EBA;;1EBA
+1EBC;LATIN CAPITAL LETTER E WITH TILDE;Lu;0;L;0045 0303;;;;N;;;;1EBD;
+1EBD;LATIN SMALL LETTER E WITH TILDE;Ll;0;L;0065 0303;;;;N;;;1EBC;;1EBC
+1EBE;LATIN CAPITAL LETTER E WITH CIRCUMFLEX AND ACUTE;Lu;0;L;00CA 0301;;;;N;;;;1EBF;
+1EBF;LATIN SMALL LETTER E WITH CIRCUMFLEX AND ACUTE;Ll;0;L;00EA 0301;;;;N;;;1EBE;;1EBE
+1EC0;LATIN CAPITAL LETTER E WITH CIRCUMFLEX AND GRAVE;Lu;0;L;00CA 0300;;;;N;;;;1EC1;
+1EC1;LATIN SMALL LETTER E WITH CIRCUMFLEX AND GRAVE;Ll;0;L;00EA 0300;;;;N;;;1EC0;;1EC0
+1EC2;LATIN CAPITAL LETTER E WITH CIRCUMFLEX AND HOOK ABOVE;Lu;0;L;00CA 0309;;;;N;;;;1EC3;
+1EC3;LATIN SMALL LETTER E WITH CIRCUMFLEX AND HOOK ABOVE;Ll;0;L;00EA 0309;;;;N;;;1EC2;;1EC2
+1EC4;LATIN CAPITAL LETTER E WITH CIRCUMFLEX AND TILDE;Lu;0;L;00CA 0303;;;;N;;;;1EC5;
+1EC5;LATIN SMALL LETTER E WITH CIRCUMFLEX AND TILDE;Ll;0;L;00EA 0303;;;;N;;;1EC4;;1EC4
+1EC6;LATIN CAPITAL LETTER E WITH CIRCUMFLEX AND DOT BELOW;Lu;0;L;1EB8 0302;;;;N;;;;1EC7;
+1EC7;LATIN SMALL LETTER E WITH CIRCUMFLEX AND DOT BELOW;Ll;0;L;1EB9 0302;;;;N;;;1EC6;;1EC6
+1EC8;LATIN CAPITAL LETTER I WITH HOOK ABOVE;Lu;0;L;0049 0309;;;;N;;;;1EC9;
+1EC9;LATIN SMALL LETTER I WITH HOOK ABOVE;Ll;0;L;0069 0309;;;;N;;;1EC8;;1EC8
+1ECA;LATIN CAPITAL LETTER I WITH DOT BELOW;Lu;0;L;0049 0323;;;;N;;;;1ECB;
+1ECB;LATIN SMALL LETTER I WITH DOT BELOW;Ll;0;L;0069 0323;;;;N;;;1ECA;;1ECA
+1ECC;LATIN CAPITAL LETTER O WITH DOT BELOW;Lu;0;L;004F 0323;;;;N;;;;1ECD;
+1ECD;LATIN SMALL LETTER O WITH DOT BELOW;Ll;0;L;006F 0323;;;;N;;;1ECC;;1ECC
+1ECE;LATIN CAPITAL LETTER O WITH HOOK ABOVE;Lu;0;L;004F 0309;;;;N;;;;1ECF;
+1ECF;LATIN SMALL LETTER O WITH HOOK ABOVE;Ll;0;L;006F 0309;;;;N;;;1ECE;;1ECE
+1ED0;LATIN CAPITAL LETTER O WITH CIRCUMFLEX AND ACUTE;Lu;0;L;00D4 0301;;;;N;;;;1ED1;
+1ED1;LATIN SMALL LETTER O WITH CIRCUMFLEX AND ACUTE;Ll;0;L;00F4 0301;;;;N;;;1ED0;;1ED0
+1ED2;LATIN CAPITAL LETTER O WITH CIRCUMFLEX AND GRAVE;Lu;0;L;00D4 0300;;;;N;;;;1ED3;
+1ED3;LATIN SMALL LETTER O WITH CIRCUMFLEX AND GRAVE;Ll;0;L;00F4 0300;;;;N;;;1ED2;;1ED2
+1ED4;LATIN CAPITAL LETTER O WITH CIRCUMFLEX AND HOOK ABOVE;Lu;0;L;00D4 0309;;;;N;;;;1ED5;
+1ED5;LATIN SMALL LETTER O WITH CIRCUMFLEX AND HOOK ABOVE;Ll;0;L;00F4 0309;;;;N;;;1ED4;;1ED4
+1ED6;LATIN CAPITAL LETTER O WITH CIRCUMFLEX AND TILDE;Lu;0;L;00D4 0303;;;;N;;;;1ED7;
+1ED7;LATIN SMALL LETTER O WITH CIRCUMFLEX AND TILDE;Ll;0;L;00F4 0303;;;;N;;;1ED6;;1ED6
+1ED8;LATIN CAPITAL LETTER O WITH CIRCUMFLEX AND DOT BELOW;Lu;0;L;1ECC 0302;;;;N;;;;1ED9;
+1ED9;LATIN SMALL LETTER O WITH CIRCUMFLEX AND DOT BELOW;Ll;0;L;1ECD 0302;;;;N;;;1ED8;;1ED8
+1EDA;LATIN CAPITAL LETTER O WITH HORN AND ACUTE;Lu;0;L;01A0 0301;;;;N;;;;1EDB;
+1EDB;LATIN SMALL LETTER O WITH HORN AND ACUTE;Ll;0;L;01A1 0301;;;;N;;;1EDA;;1EDA
+1EDC;LATIN CAPITAL LETTER O WITH HORN AND GRAVE;Lu;0;L;01A0 0300;;;;N;;;;1EDD;
+1EDD;LATIN SMALL LETTER O WITH HORN AND GRAVE;Ll;0;L;01A1 0300;;;;N;;;1EDC;;1EDC
+1EDE;LATIN CAPITAL LETTER O WITH HORN AND HOOK ABOVE;Lu;0;L;01A0 0309;;;;N;;;;1EDF;
+1EDF;LATIN SMALL LETTER O WITH HORN AND HOOK ABOVE;Ll;0;L;01A1 0309;;;;N;;;1EDE;;1EDE
+1EE0;LATIN CAPITAL LETTER O WITH HORN AND TILDE;Lu;0;L;01A0 0303;;;;N;;;;1EE1;
+1EE1;LATIN SMALL LETTER O WITH HORN AND TILDE;Ll;0;L;01A1 0303;;;;N;;;1EE0;;1EE0
+1EE2;LATIN CAPITAL LETTER O WITH HORN AND DOT BELOW;Lu;0;L;01A0 0323;;;;N;;;;1EE3;
+1EE3;LATIN SMALL LETTER O WITH HORN AND DOT BELOW;Ll;0;L;01A1 0323;;;;N;;;1EE2;;1EE2
+1EE4;LATIN CAPITAL LETTER U WITH DOT BELOW;Lu;0;L;0055 0323;;;;N;;;;1EE5;
+1EE5;LATIN SMALL LETTER U WITH DOT BELOW;Ll;0;L;0075 0323;;;;N;;;1EE4;;1EE4
+1EE6;LATIN CAPITAL LETTER U WITH HOOK ABOVE;Lu;0;L;0055 0309;;;;N;;;;1EE7;
+1EE7;LATIN SMALL LETTER U WITH HOOK ABOVE;Ll;0;L;0075 0309;;;;N;;;1EE6;;1EE6
+1EE8;LATIN CAPITAL LETTER U WITH HORN AND ACUTE;Lu;0;L;01AF 0301;;;;N;;;;1EE9;
+1EE9;LATIN SMALL LETTER U WITH HORN AND ACUTE;Ll;0;L;01B0 0301;;;;N;;;1EE8;;1EE8
+1EEA;LATIN CAPITAL LETTER U WITH HORN AND GRAVE;Lu;0;L;01AF 0300;;;;N;;;;1EEB;
+1EEB;LATIN SMALL LETTER U WITH HORN AND GRAVE;Ll;0;L;01B0 0300;;;;N;;;1EEA;;1EEA
+1EEC;LATIN CAPITAL LETTER U WITH HORN AND HOOK ABOVE;Lu;0;L;01AF 0309;;;;N;;;;1EED;
+1EED;LATIN SMALL LETTER U WITH HORN AND HOOK ABOVE;Ll;0;L;01B0 0309;;;;N;;;1EEC;;1EEC
+1EEE;LATIN CAPITAL LETTER U WITH HORN AND TILDE;Lu;0;L;01AF 0303;;;;N;;;;1EEF;
+1EEF;LATIN SMALL LETTER U WITH HORN AND TILDE;Ll;0;L;01B0 0303;;;;N;;;1EEE;;1EEE
+1EF0;LATIN CAPITAL LETTER U WITH HORN AND DOT BELOW;Lu;0;L;01AF 0323;;;;N;;;;1EF1;
+1EF1;LATIN SMALL LETTER U WITH HORN AND DOT BELOW;Ll;0;L;01B0 0323;;;;N;;;1EF0;;1EF0
+1EF2;LATIN CAPITAL LETTER Y WITH GRAVE;Lu;0;L;0059 0300;;;;N;;;;1EF3;
+1EF3;LATIN SMALL LETTER Y WITH GRAVE;Ll;0;L;0079 0300;;;;N;;;1EF2;;1EF2
+1EF4;LATIN CAPITAL LETTER Y WITH DOT BELOW;Lu;0;L;0059 0323;;;;N;;;;1EF5;
+1EF5;LATIN SMALL LETTER Y WITH DOT BELOW;Ll;0;L;0079 0323;;;;N;;;1EF4;;1EF4
+1EF6;LATIN CAPITAL LETTER Y WITH HOOK ABOVE;Lu;0;L;0059 0309;;;;N;;;;1EF7;
+1EF7;LATIN SMALL LETTER Y WITH HOOK ABOVE;Ll;0;L;0079 0309;;;;N;;;1EF6;;1EF6
+1EF8;LATIN CAPITAL LETTER Y WITH TILDE;Lu;0;L;0059 0303;;;;N;;;;1EF9;
+1EF9;LATIN SMALL LETTER Y WITH TILDE;Ll;0;L;0079 0303;;;;N;;;1EF8;;1EF8
+1EFA;LATIN CAPITAL LETTER MIDDLE-WELSH LL;Lu;0;L;;;;;N;;;;1EFB;
+1EFB;LATIN SMALL LETTER MIDDLE-WELSH LL;Ll;0;L;;;;;N;;;1EFA;;1EFA
+1EFC;LATIN CAPITAL LETTER MIDDLE-WELSH V;Lu;0;L;;;;;N;;;;1EFD;
+1EFD;LATIN SMALL LETTER MIDDLE-WELSH V;Ll;0;L;;;;;N;;;1EFC;;1EFC
+1EFE;LATIN CAPITAL LETTER Y WITH LOOP;Lu;0;L;;;;;N;;;;1EFF;
+1EFF;LATIN SMALL LETTER Y WITH LOOP;Ll;0;L;;;;;N;;;1EFE;;1EFE
+1F00;GREEK SMALL LETTER ALPHA WITH PSILI;Ll;0;L;03B1 0313;;;;N;;;1F08;;1F08
+1F01;GREEK SMALL LETTER ALPHA WITH DASIA;Ll;0;L;03B1 0314;;;;N;;;1F09;;1F09
+1F02;GREEK SMALL LETTER ALPHA WITH PSILI AND VARIA;Ll;0;L;1F00 0300;;;;N;;;1F0A;;1F0A
+1F03;GREEK SMALL LETTER ALPHA WITH DASIA AND VARIA;Ll;0;L;1F01 0300;;;;N;;;1F0B;;1F0B
+1F04;GREEK SMALL LETTER ALPHA WITH PSILI AND OXIA;Ll;0;L;1F00 0301;;;;N;;;1F0C;;1F0C
+1F05;GREEK SMALL LETTER ALPHA WITH DASIA AND OXIA;Ll;0;L;1F01 0301;;;;N;;;1F0D;;1F0D
+1F06;GREEK SMALL LETTER ALPHA WITH PSILI AND PERISPOMENI;Ll;0;L;1F00 0342;;;;N;;;1F0E;;1F0E
+1F07;GREEK SMALL LETTER ALPHA WITH DASIA AND PERISPOMENI;Ll;0;L;1F01 0342;;;;N;;;1F0F;;1F0F
+1F08;GREEK CAPITAL LETTER ALPHA WITH PSILI;Lu;0;L;0391 0313;;;;N;;;;1F00;
+1F09;GREEK CAPITAL LETTER ALPHA WITH DASIA;Lu;0;L;0391 0314;;;;N;;;;1F01;
+1F0A;GREEK CAPITAL LETTER ALPHA WITH PSILI AND VARIA;Lu;0;L;1F08 0300;;;;N;;;;1F02;
+1F0B;GREEK CAPITAL LETTER ALPHA WITH DASIA AND VARIA;Lu;0;L;1F09 0300;;;;N;;;;1F03;
+1F0C;GREEK CAPITAL LETTER ALPHA WITH PSILI AND OXIA;Lu;0;L;1F08 0301;;;;N;;;;1F04;
+1F0D;GREEK CAPITAL LETTER ALPHA WITH DASIA AND OXIA;Lu;0;L;1F09 0301;;;;N;;;;1F05;
+1F0E;GREEK CAPITAL LETTER ALPHA WITH PSILI AND PERISPOMENI;Lu;0;L;1F08 0342;;;;N;;;;1F06;
+1F0F;GREEK CAPITAL LETTER ALPHA WITH DASIA AND PERISPOMENI;Lu;0;L;1F09 0342;;;;N;;;;1F07;
+1F10;GREEK SMALL LETTER EPSILON WITH PSILI;Ll;0;L;03B5 0313;;;;N;;;1F18;;1F18
+1F11;GREEK SMALL LETTER EPSILON WITH DASIA;Ll;0;L;03B5 0314;;;;N;;;1F19;;1F19
+1F12;GREEK SMALL LETTER EPSILON WITH PSILI AND VARIA;Ll;0;L;1F10 0300;;;;N;;;1F1A;;1F1A
+1F13;GREEK SMALL LETTER EPSILON WITH DASIA AND VARIA;Ll;0;L;1F11 0300;;;;N;;;1F1B;;1F1B
+1F14;GREEK SMALL LETTER EPSILON WITH PSILI AND OXIA;Ll;0;L;1F10 0301;;;;N;;;1F1C;;1F1C
+1F15;GREEK SMALL LETTER EPSILON WITH DASIA AND OXIA;Ll;0;L;1F11 0301;;;;N;;;1F1D;;1F1D
+1F18;GREEK CAPITAL LETTER EPSILON WITH PSILI;Lu;0;L;0395 0313;;;;N;;;;1F10;
+1F19;GREEK CAPITAL LETTER EPSILON WITH DASIA;Lu;0;L;0395 0314;;;;N;;;;1F11;
+1F1A;GREEK CAPITAL LETTER EPSILON WITH PSILI AND VARIA;Lu;0;L;1F18 0300;;;;N;;;;1F12;
+1F1B;GREEK CAPITAL LETTER EPSILON WITH DASIA AND VARIA;Lu;0;L;1F19 0300;;;;N;;;;1F13;
+1F1C;GREEK CAPITAL LETTER EPSILON WITH PSILI AND OXIA;Lu;0;L;1F18 0301;;;;N;;;;1F14;
+1F1D;GREEK CAPITAL LETTER EPSILON WITH DASIA AND OXIA;Lu;0;L;1F19 0301;;;;N;;;;1F15;
+1F20;GREEK SMALL LETTER ETA WITH PSILI;Ll;0;L;03B7 0313;;;;N;;;1F28;;1F28
+1F21;GREEK SMALL LETTER ETA WITH DASIA;Ll;0;L;03B7 0314;;;;N;;;1F29;;1F29
+1F22;GREEK SMALL LETTER ETA WITH PSILI AND VARIA;Ll;0;L;1F20 0300;;;;N;;;1F2A;;1F2A
+1F23;GREEK SMALL LETTER ETA WITH DASIA AND VARIA;Ll;0;L;1F21 0300;;;;N;;;1F2B;;1F2B
+1F24;GREEK SMALL LETTER ETA WITH PSILI AND OXIA;Ll;0;L;1F20 0301;;;;N;;;1F2C;;1F2C
+1F25;GREEK SMALL LETTER ETA WITH DASIA AND OXIA;Ll;0;L;1F21 0301;;;;N;;;1F2D;;1F2D
+1F26;GREEK SMALL LETTER ETA WITH PSILI AND PERISPOMENI;Ll;0;L;1F20 0342;;;;N;;;1F2E;;1F2E
+1F27;GREEK SMALL LETTER ETA WITH DASIA AND PERISPOMENI;Ll;0;L;1F21 0342;;;;N;;;1F2F;;1F2F
+1F28;GREEK CAPITAL LETTER ETA WITH PSILI;Lu;0;L;0397 0313;;;;N;;;;1F20;
+1F29;GREEK CAPITAL LETTER ETA WITH DASIA;Lu;0;L;0397 0314;;;;N;;;;1F21;
+1F2A;GREEK CAPITAL LETTER ETA WITH PSILI AND VARIA;Lu;0;L;1F28 0300;;;;N;;;;1F22;
+1F2B;GREEK CAPITAL LETTER ETA WITH DASIA AND VARIA;Lu;0;L;1F29 0300;;;;N;;;;1F23;
+1F2C;GREEK CAPITAL LETTER ETA WITH PSILI AND OXIA;Lu;0;L;1F28 0301;;;;N;;;;1F24;
+1F2D;GREEK CAPITAL LETTER ETA WITH DASIA AND OXIA;Lu;0;L;1F29 0301;;;;N;;;;1F25;
+1F2E;GREEK CAPITAL LETTER ETA WITH PSILI AND PERISPOMENI;Lu;0;L;1F28 0342;;;;N;;;;1F26;
+1F2F;GREEK CAPITAL LETTER ETA WITH DASIA AND PERISPOMENI;Lu;0;L;1F29 0342;;;;N;;;;1F27;
+1F30;GREEK SMALL LETTER IOTA WITH PSILI;Ll;0;L;03B9 0313;;;;N;;;1F38;;1F38
+1F31;GREEK SMALL LETTER IOTA WITH DASIA;Ll;0;L;03B9 0314;;;;N;;;1F39;;1F39
+1F32;GREEK SMALL LETTER IOTA WITH PSILI AND VARIA;Ll;0;L;1F30 0300;;;;N;;;1F3A;;1F3A
+1F33;GREEK SMALL LETTER IOTA WITH DASIA AND VARIA;Ll;0;L;1F31 0300;;;;N;;;1F3B;;1F3B
+1F34;GREEK SMALL LETTER IOTA WITH PSILI AND OXIA;Ll;0;L;1F30 0301;;;;N;;;1F3C;;1F3C
+1F35;GREEK SMALL LETTER IOTA WITH DASIA AND OXIA;Ll;0;L;1F31 0301;;;;N;;;1F3D;;1F3D
+1F36;GREEK SMALL LETTER IOTA WITH PSILI AND PERISPOMENI;Ll;0;L;1F30 0342;;;;N;;;1F3E;;1F3E
+1F37;GREEK SMALL LETTER IOTA WITH DASIA AND PERISPOMENI;Ll;0;L;1F31 0342;;;;N;;;1F3F;;1F3F
+1F38;GREEK CAPITAL LETTER IOTA WITH PSILI;Lu;0;L;0399 0313;;;;N;;;;1F30;
+1F39;GREEK CAPITAL LETTER IOTA WITH DASIA;Lu;0;L;0399 0314;;;;N;;;;1F31;
+1F3A;GREEK CAPITAL LETTER IOTA WITH PSILI AND VARIA;Lu;0;L;1F38 0300;;;;N;;;;1F32;
+1F3B;GREEK CAPITAL LETTER IOTA WITH DASIA AND VARIA;Lu;0;L;1F39 0300;;;;N;;;;1F33;
+1F3C;GREEK CAPITAL LETTER IOTA WITH PSILI AND OXIA;Lu;0;L;1F38 0301;;;;N;;;;1F34;
+1F3D;GREEK CAPITAL LETTER IOTA WITH DASIA AND OXIA;Lu;0;L;1F39 0301;;;;N;;;;1F35;
+1F3E;GREEK CAPITAL LETTER IOTA WITH PSILI AND PERISPOMENI;Lu;0;L;1F38 0342;;;;N;;;;1F36;
+1F3F;GREEK CAPITAL LETTER IOTA WITH DASIA AND PERISPOMENI;Lu;0;L;1F39 0342;;;;N;;;;1F37;
+1F40;GREEK SMALL LETTER OMICRON WITH PSILI;Ll;0;L;03BF 0313;;;;N;;;1F48;;1F48
+1F41;GREEK SMALL LETTER OMICRON WITH DASIA;Ll;0;L;03BF 0314;;;;N;;;1F49;;1F49
+1F42;GREEK SMALL LETTER OMICRON WITH PSILI AND VARIA;Ll;0;L;1F40 0300;;;;N;;;1F4A;;1F4A
+1F43;GREEK SMALL LETTER OMICRON WITH DASIA AND VARIA;Ll;0;L;1F41 0300;;;;N;;;1F4B;;1F4B
+1F44;GREEK SMALL LETTER OMICRON WITH PSILI AND OXIA;Ll;0;L;1F40 0301;;;;N;;;1F4C;;1F4C
+1F45;GREEK SMALL LETTER OMICRON WITH DASIA AND OXIA;Ll;0;L;1F41 0301;;;;N;;;1F4D;;1F4D
+1F48;GREEK CAPITAL LETTER OMICRON WITH PSILI;Lu;0;L;039F 0313;;;;N;;;;1F40;
+1F49;GREEK CAPITAL LETTER OMICRON WITH DASIA;Lu;0;L;039F 0314;;;;N;;;;1F41;
+1F4A;GREEK CAPITAL LETTER OMICRON WITH PSILI AND VARIA;Lu;0;L;1F48 0300;;;;N;;;;1F42;
+1F4B;GREEK CAPITAL LETTER OMICRON WITH DASIA AND VARIA;Lu;0;L;1F49 0300;;;;N;;;;1F43;
+1F4C;GREEK CAPITAL LETTER OMICRON WITH PSILI AND OXIA;Lu;0;L;1F48 0301;;;;N;;;;1F44;
+1F4D;GREEK CAPITAL LETTER OMICRON WITH DASIA AND OXIA;Lu;0;L;1F49 0301;;;;N;;;;1F45;
+1F50;GREEK SMALL LETTER UPSILON WITH PSILI;Ll;0;L;03C5 0313;;;;N;;;;;
+1F51;GREEK SMALL LETTER UPSILON WITH DASIA;Ll;0;L;03C5 0314;;;;N;;;1F59;;1F59
+1F52;GREEK SMALL LETTER UPSILON WITH PSILI AND VARIA;Ll;0;L;1F50 0300;;;;N;;;;;
+1F53;GREEK SMALL LETTER UPSILON WITH DASIA AND VARIA;Ll;0;L;1F51 0300;;;;N;;;1F5B;;1F5B
+1F54;GREEK SMALL LETTER UPSILON WITH PSILI AND OXIA;Ll;0;L;1F50 0301;;;;N;;;;;
+1F55;GREEK SMALL LETTER UPSILON WITH DASIA AND OXIA;Ll;0;L;1F51 0301;;;;N;;;1F5D;;1F5D
+1F56;GREEK SMALL LETTER UPSILON WITH PSILI AND PERISPOMENI;Ll;0;L;1F50 0342;;;;N;;;;;
+1F57;GREEK SMALL LETTER UPSILON WITH DASIA AND PERISPOMENI;Ll;0;L;1F51 0342;;;;N;;;1F5F;;1F5F
+1F59;GREEK CAPITAL LETTER UPSILON WITH DASIA;Lu;0;L;03A5 0314;;;;N;;;;1F51;
+1F5B;GREEK CAPITAL LETTER UPSILON WITH DASIA AND VARIA;Lu;0;L;1F59 0300;;;;N;;;;1F53;
+1F5D;GREEK CAPITAL LETTER UPSILON WITH DASIA AND OXIA;Lu;0;L;1F59 0301;;;;N;;;;1F55;
+1F5F;GREEK CAPITAL LETTER UPSILON WITH DASIA AND PERISPOMENI;Lu;0;L;1F59 0342;;;;N;;;;1F57;
+1F60;GREEK SMALL LETTER OMEGA WITH PSILI;Ll;0;L;03C9 0313;;;;N;;;1F68;;1F68
+1F61;GREEK SMALL LETTER OMEGA WITH DASIA;Ll;0;L;03C9 0314;;;;N;;;1F69;;1F69
+1F62;GREEK SMALL LETTER OMEGA WITH PSILI AND VARIA;Ll;0;L;1F60 0300;;;;N;;;1F6A;;1F6A
+1F63;GREEK SMALL LETTER OMEGA WITH DASIA AND VARIA;Ll;0;L;1F61 0300;;;;N;;;1F6B;;1F6B
+1F64;GREEK SMALL LETTER OMEGA WITH PSILI AND OXIA;Ll;0;L;1F60 0301;;;;N;;;1F6C;;1F6C
+1F65;GREEK SMALL LETTER OMEGA WITH DASIA AND OXIA;Ll;0;L;1F61 0301;;;;N;;;1F6D;;1F6D
+1F66;GREEK SMALL LETTER OMEGA WITH PSILI AND PERISPOMENI;Ll;0;L;1F60 0342;;;;N;;;1F6E;;1F6E
+1F67;GREEK SMALL LETTER OMEGA WITH DASIA AND PERISPOMENI;Ll;0;L;1F61 0342;;;;N;;;1F6F;;1F6F
+1F68;GREEK CAPITAL LETTER OMEGA WITH PSILI;Lu;0;L;03A9 0313;;;;N;;;;1F60;
+1F69;GREEK CAPITAL LETTER OMEGA WITH DASIA;Lu;0;L;03A9 0314;;;;N;;;;1F61;
+1F6A;GREEK CAPITAL LETTER OMEGA WITH PSILI AND VARIA;Lu;0;L;1F68 0300;;;;N;;;;1F62;
+1F6B;GREEK CAPITAL LETTER OMEGA WITH DASIA AND VARIA;Lu;0;L;1F69 0300;;;;N;;;;1F63;
+1F6C;GREEK CAPITAL LETTER OMEGA WITH PSILI AND OXIA;Lu;0;L;1F68 0301;;;;N;;;;1F64;
+1F6D;GREEK CAPITAL LETTER OMEGA WITH DASIA AND OXIA;Lu;0;L;1F69 0301;;;;N;;;;1F65;
+1F6E;GREEK CAPITAL LETTER OMEGA WITH PSILI AND PERISPOMENI;Lu;0;L;1F68 0342;;;;N;;;;1F66;
+1F6F;GREEK CAPITAL LETTER OMEGA WITH DASIA AND PERISPOMENI;Lu;0;L;1F69 0342;;;;N;;;;1F67;
+1F70;GREEK SMALL LETTER ALPHA WITH VARIA;Ll;0;L;03B1 0300;;;;N;;;1FBA;;1FBA
+1F71;GREEK SMALL LETTER ALPHA WITH OXIA;Ll;0;L;03AC;;;;N;;;1FBB;;1FBB
+1F72;GREEK SMALL LETTER EPSILON WITH VARIA;Ll;0;L;03B5 0300;;;;N;;;1FC8;;1FC8
+1F73;GREEK SMALL LETTER EPSILON WITH OXIA;Ll;0;L;03AD;;;;N;;;1FC9;;1FC9
+1F74;GREEK SMALL LETTER ETA WITH VARIA;Ll;0;L;03B7 0300;;;;N;;;1FCA;;1FCA
+1F75;GREEK SMALL LETTER ETA WITH OXIA;Ll;0;L;03AE;;;;N;;;1FCB;;1FCB
+1F76;GREEK SMALL LETTER IOTA WITH VARIA;Ll;0;L;03B9 0300;;;;N;;;1FDA;;1FDA
+1F77;GREEK SMALL LETTER IOTA WITH OXIA;Ll;0;L;03AF;;;;N;;;1FDB;;1FDB
+1F78;GREEK SMALL LETTER OMICRON WITH VARIA;Ll;0;L;03BF 0300;;;;N;;;1FF8;;1FF8
+1F79;GREEK SMALL LETTER OMICRON WITH OXIA;Ll;0;L;03CC;;;;N;;;1FF9;;1FF9
+1F7A;GREEK SMALL LETTER UPSILON WITH VARIA;Ll;0;L;03C5 0300;;;;N;;;1FEA;;1FEA
+1F7B;GREEK SMALL LETTER UPSILON WITH OXIA;Ll;0;L;03CD;;;;N;;;1FEB;;1FEB
+1F7C;GREEK SMALL LETTER OMEGA WITH VARIA;Ll;0;L;03C9 0300;;;;N;;;1FFA;;1FFA
+1F7D;GREEK SMALL LETTER OMEGA WITH OXIA;Ll;0;L;03CE;;;;N;;;1FFB;;1FFB
+1F80;GREEK SMALL LETTER ALPHA WITH PSILI AND YPOGEGRAMMENI;Ll;0;L;1F00 0345;;;;N;;;1F88;;1F88
+1F81;GREEK SMALL LETTER ALPHA WITH DASIA AND YPOGEGRAMMENI;Ll;0;L;1F01 0345;;;;N;;;1F89;;1F89
+1F82;GREEK SMALL LETTER ALPHA WITH PSILI AND VARIA AND YPOGEGRAMMENI;Ll;0;L;1F02 0345;;;;N;;;1F8A;;1F8A
+1F83;GREEK SMALL LETTER ALPHA WITH DASIA AND VARIA AND YPOGEGRAMMENI;Ll;0;L;1F03 0345;;;;N;;;1F8B;;1F8B
+1F84;GREEK SMALL LETTER ALPHA WITH PSILI AND OXIA AND YPOGEGRAMMENI;Ll;0;L;1F04 0345;;;;N;;;1F8C;;1F8C
+1F85;GREEK SMALL LETTER ALPHA WITH DASIA AND OXIA AND YPOGEGRAMMENI;Ll;0;L;1F05 0345;;;;N;;;1F8D;;1F8D
+1F86;GREEK SMALL LETTER ALPHA WITH PSILI AND PERISPOMENI AND YPOGEGRAMMENI;Ll;0;L;1F06 0345;;;;N;;;1F8E;;1F8E
+1F87;GREEK SMALL LETTER ALPHA WITH DASIA AND PERISPOMENI AND YPOGEGRAMMENI;Ll;0;L;1F07 0345;;;;N;;;1F8F;;1F8F
+1F88;GREEK CAPITAL LETTER ALPHA WITH PSILI AND PROSGEGRAMMENI;Lt;0;L;1F08 0345;;;;N;;;;1F80;
+1F89;GREEK CAPITAL LETTER ALPHA WITH DASIA AND PROSGEGRAMMENI;Lt;0;L;1F09 0345;;;;N;;;;1F81;
+1F8A;GREEK CAPITAL LETTER ALPHA WITH PSILI AND VARIA AND PROSGEGRAMMENI;Lt;0;L;1F0A 0345;;;;N;;;;1F82;
+1F8B;GREEK CAPITAL LETTER ALPHA WITH DASIA AND VARIA AND PROSGEGRAMMENI;Lt;0;L;1F0B 0345;;;;N;;;;1F83;
+1F8C;GREEK CAPITAL LETTER ALPHA WITH PSILI AND OXIA AND PROSGEGRAMMENI;Lt;0;L;1F0C 0345;;;;N;;;;1F84;
+1F8D;GREEK CAPITAL LETTER ALPHA WITH DASIA AND OXIA AND PROSGEGRAMMENI;Lt;0;L;1F0D 0345;;;;N;;;;1F85;
+1F8E;GREEK CAPITAL LETTER ALPHA WITH PSILI AND PERISPOMENI AND PROSGEGRAMMENI;Lt;0;L;1F0E 0345;;;;N;;;;1F86;
+1F8F;GREEK CAPITAL LETTER ALPHA WITH DASIA AND PERISPOMENI AND PROSGEGRAMMENI;Lt;0;L;1F0F 0345;;;;N;;;;1F87;
+1F90;GREEK SMALL LETTER ETA WITH PSILI AND YPOGEGRAMMENI;Ll;0;L;1F20 0345;;;;N;;;1F98;;1F98
+1F91;GREEK SMALL LETTER ETA WITH DASIA AND YPOGEGRAMMENI;Ll;0;L;1F21 0345;;;;N;;;1F99;;1F99
+1F92;GREEK SMALL LETTER ETA WITH PSILI AND VARIA AND YPOGEGRAMMENI;Ll;0;L;1F22 0345;;;;N;;;1F9A;;1F9A
+1F93;GREEK SMALL LETTER ETA WITH DASIA AND VARIA AND YPOGEGRAMMENI;Ll;0;L;1F23 0345;;;;N;;;1F9B;;1F9B
+1F94;GREEK SMALL LETTER ETA WITH PSILI AND OXIA AND YPOGEGRAMMENI;Ll;0;L;1F24 0345;;;;N;;;1F9C;;1F9C
+1F95;GREEK SMALL LETTER ETA WITH DASIA AND OXIA AND YPOGEGRAMMENI;Ll;0;L;1F25 0345;;;;N;;;1F9D;;1F9D
+1F96;GREEK SMALL LETTER ETA WITH PSILI AND PERISPOMENI AND YPOGEGRAMMENI;Ll;0;L;1F26 0345;;;;N;;;1F9E;;1F9E
+1F97;GREEK SMALL LETTER ETA WITH DASIA AND PERISPOMENI AND YPOGEGRAMMENI;Ll;0;L;1F27 0345;;;;N;;;1F9F;;1F9F
+1F98;GREEK CAPITAL LETTER ETA WITH PSILI AND PROSGEGRAMMENI;Lt;0;L;1F28 0345;;;;N;;;;1F90;
+1F99;GREEK CAPITAL LETTER ETA WITH DASIA AND PROSGEGRAMMENI;Lt;0;L;1F29 0345;;;;N;;;;1F91;
+1F9A;GREEK CAPITAL LETTER ETA WITH PSILI AND VARIA AND PROSGEGRAMMENI;Lt;0;L;1F2A 0345;;;;N;;;;1F92;
+1F9B;GREEK CAPITAL LETTER ETA WITH DASIA AND VARIA AND PROSGEGRAMMENI;Lt;0;L;1F2B 0345;;;;N;;;;1F93;
+1F9C;GREEK CAPITAL LETTER ETA WITH PSILI AND OXIA AND PROSGEGRAMMENI;Lt;0;L;1F2C 0345;;;;N;;;;1F94;
+1F9D;GREEK CAPITAL LETTER ETA WITH DASIA AND OXIA AND PROSGEGRAMMENI;Lt;0;L;1F2D 0345;;;;N;;;;1F95;
+1F9E;GREEK CAPITAL LETTER ETA WITH PSILI AND PERISPOMENI AND PROSGEGRAMMENI;Lt;0;L;1F2E 0345;;;;N;;;;1F96;
+1F9F;GREEK CAPITAL LETTER ETA WITH DASIA AND PERISPOMENI AND PROSGEGRAMMENI;Lt;0;L;1F2F 0345;;;;N;;;;1F97;
+1FA0;GREEK SMALL LETTER OMEGA WITH PSILI AND YPOGEGRAMMENI;Ll;0;L;1F60 0345;;;;N;;;1FA8;;1FA8
+1FA1;GREEK SMALL LETTER OMEGA WITH DASIA AND YPOGEGRAMMENI;Ll;0;L;1F61 0345;;;;N;;;1FA9;;1FA9
+1FA2;GREEK SMALL LETTER OMEGA WITH PSILI AND VARIA AND YPOGEGRAMMENI;Ll;0;L;1F62 0345;;;;N;;;1FAA;;1FAA
+1FA3;GREEK SMALL LETTER OMEGA WITH DASIA AND VARIA AND YPOGEGRAMMENI;Ll;0;L;1F63 0345;;;;N;;;1FAB;;1FAB
+1FA4;GREEK SMALL LETTER OMEGA WITH PSILI AND OXIA AND YPOGEGRAMMENI;Ll;0;L;1F64 0345;;;;N;;;1FAC;;1FAC
+1FA5;GREEK SMALL LETTER OMEGA WITH DASIA AND OXIA AND YPOGEGRAMMENI;Ll;0;L;1F65 0345;;;;N;;;1FAD;;1FAD
+1FA6;GREEK SMALL LETTER OMEGA WITH PSILI AND PERISPOMENI AND YPOGEGRAMMENI;Ll;0;L;1F66 0345;;;;N;;;1FAE;;1FAE
+1FA7;GREEK SMALL LETTER OMEGA WITH DASIA AND PERISPOMENI AND YPOGEGRAMMENI;Ll;0;L;1F67 0345;;;;N;;;1FAF;;1FAF
+1FA8;GREEK CAPITAL LETTER OMEGA WITH PSILI AND PROSGEGRAMMENI;Lt;0;L;1F68 0345;;;;N;;;;1FA0;
+1FA9;GREEK CAPITAL LETTER OMEGA WITH DASIA AND PROSGEGRAMMENI;Lt;0;L;1F69 0345;;;;N;;;;1FA1;
+1FAA;GREEK CAPITAL LETTER OMEGA WITH PSILI AND VARIA AND PROSGEGRAMMENI;Lt;0;L;1F6A 0345;;;;N;;;;1FA2;
+1FAB;GREEK CAPITAL LETTER OMEGA WITH DASIA AND VARIA AND PROSGEGRAMMENI;Lt;0;L;1F6B 0345;;;;N;;;;1FA3;
+1FAC;GREEK CAPITAL LETTER OMEGA WITH PSILI AND OXIA AND PROSGEGRAMMENI;Lt;0;L;1F6C 0345;;;;N;;;;1FA4;
+1FAD;GREEK CAPITAL LETTER OMEGA WITH DASIA AND OXIA AND PROSGEGRAMMENI;Lt;0;L;1F6D 0345;;;;N;;;;1FA5;
+1FAE;GREEK CAPITAL LETTER OMEGA WITH PSILI AND PERISPOMENI AND PROSGEGRAMMENI;Lt;0;L;1F6E 0345;;;;N;;;;1FA6;
+1FAF;GREEK CAPITAL LETTER OMEGA WITH DASIA AND PERISPOMENI AND PROSGEGRAMMENI;Lt;0;L;1F6F 0345;;;;N;;;;1FA7;
+1FB0;GREEK SMALL LETTER ALPHA WITH VRACHY;Ll;0;L;03B1 0306;;;;N;;;1FB8;;1FB8
+1FB1;GREEK SMALL LETTER ALPHA WITH MACRON;Ll;0;L;03B1 0304;;;;N;;;1FB9;;1FB9
+1FB2;GREEK SMALL LETTER ALPHA WITH VARIA AND YPOGEGRAMMENI;Ll;0;L;1F70 0345;;;;N;;;;;
+1FB3;GREEK SMALL LETTER ALPHA WITH YPOGEGRAMMENI;Ll;0;L;03B1 0345;;;;N;;;1FBC;;1FBC
+1FB4;GREEK SMALL LETTER ALPHA WITH OXIA AND YPOGEGRAMMENI;Ll;0;L;03AC 0345;;;;N;;;;;
+1FB6;GREEK SMALL LETTER ALPHA WITH PERISPOMENI;Ll;0;L;03B1 0342;;;;N;;;;;
+1FB7;GREEK SMALL LETTER ALPHA WITH PERISPOMENI AND YPOGEGRAMMENI;Ll;0;L;1FB6 0345;;;;N;;;;;
+1FB8;GREEK CAPITAL LETTER ALPHA WITH VRACHY;Lu;0;L;0391 0306;;;;N;;;;1FB0;
+1FB9;GREEK CAPITAL LETTER ALPHA WITH MACRON;Lu;0;L;0391 0304;;;;N;;;;1FB1;
+1FBA;GREEK CAPITAL LETTER ALPHA WITH VARIA;Lu;0;L;0391 0300;;;;N;;;;1F70;
+1FBB;GREEK CAPITAL LETTER ALPHA WITH OXIA;Lu;0;L;0386;;;;N;;;;1F71;
+1FBC;GREEK CAPITAL LETTER ALPHA WITH PROSGEGRAMMENI;Lt;0;L;0391 0345;;;;N;;;;1FB3;
+1FBD;GREEK KORONIS;Sk;0;ON;<compat> 0020 0313;;;;N;;;;;
+1FBE;GREEK PROSGEGRAMMENI;Ll;0;L;03B9;;;;N;;;0399;;0399
+1FBF;GREEK PSILI;Sk;0;ON;<compat> 0020 0313;;;;N;;;;;
+1FC0;GREEK PERISPOMENI;Sk;0;ON;<compat> 0020 0342;;;;N;;;;;
+1FC1;GREEK DIALYTIKA AND PERISPOMENI;Sk;0;ON;00A8 0342;;;;N;;;;;
+1FC2;GREEK SMALL LETTER ETA WITH VARIA AND YPOGEGRAMMENI;Ll;0;L;1F74 0345;;;;N;;;;;
+1FC3;GREEK SMALL LETTER ETA WITH YPOGEGRAMMENI;Ll;0;L;03B7 0345;;;;N;;;1FCC;;1FCC
+1FC4;GREEK SMALL LETTER ETA WITH OXIA AND YPOGEGRAMMENI;Ll;0;L;03AE 0345;;;;N;;;;;
+1FC6;GREEK SMALL LETTER ETA WITH PERISPOMENI;Ll;0;L;03B7 0342;;;;N;;;;;
+1FC7;GREEK SMALL LETTER ETA WITH PERISPOMENI AND YPOGEGRAMMENI;Ll;0;L;1FC6 0345;;;;N;;;;;
+1FC8;GREEK CAPITAL LETTER EPSILON WITH VARIA;Lu;0;L;0395 0300;;;;N;;;;1F72;
+1FC9;GREEK CAPITAL LETTER EPSILON WITH OXIA;Lu;0;L;0388;;;;N;;;;1F73;
+1FCA;GREEK CAPITAL LETTER ETA WITH VARIA;Lu;0;L;0397 0300;;;;N;;;;1F74;
+1FCB;GREEK CAPITAL LETTER ETA WITH OXIA;Lu;0;L;0389;;;;N;;;;1F75;
+1FCC;GREEK CAPITAL LETTER ETA WITH PROSGEGRAMMENI;Lt;0;L;0397 0345;;;;N;;;;1FC3;
+1FCD;GREEK PSILI AND VARIA;Sk;0;ON;1FBF 0300;;;;N;;;;;
+1FCE;GREEK PSILI AND OXIA;Sk;0;ON;1FBF 0301;;;;N;;;;;
+1FCF;GREEK PSILI AND PERISPOMENI;Sk;0;ON;1FBF 0342;;;;N;;;;;
+1FD0;GREEK SMALL LETTER IOTA WITH VRACHY;Ll;0;L;03B9 0306;;;;N;;;1FD8;;1FD8
+1FD1;GREEK SMALL LETTER IOTA WITH MACRON;Ll;0;L;03B9 0304;;;;N;;;1FD9;;1FD9
+1FD2;GREEK SMALL LETTER IOTA WITH DIALYTIKA AND VARIA;Ll;0;L;03CA 0300;;;;N;;;;;
+1FD3;GREEK SMALL LETTER IOTA WITH DIALYTIKA AND OXIA;Ll;0;L;0390;;;;N;;;;;
+1FD6;GREEK SMALL LETTER IOTA WITH PERISPOMENI;Ll;0;L;03B9 0342;;;;N;;;;;
+1FD7;GREEK SMALL LETTER IOTA WITH DIALYTIKA AND PERISPOMENI;Ll;0;L;03CA 0342;;;;N;;;;;
+1FD8;GREEK CAPITAL LETTER IOTA WITH VRACHY;Lu;0;L;0399 0306;;;;N;;;;1FD0;
+1FD9;GREEK CAPITAL LETTER IOTA WITH MACRON;Lu;0;L;0399 0304;;;;N;;;;1FD1;
+1FDA;GREEK CAPITAL LETTER IOTA WITH VARIA;Lu;0;L;0399 0300;;;;N;;;;1F76;
+1FDB;GREEK CAPITAL LETTER IOTA WITH OXIA;Lu;0;L;038A;;;;N;;;;1F77;
+1FDD;GREEK DASIA AND VARIA;Sk;0;ON;1FFE 0300;;;;N;;;;;
+1FDE;GREEK DASIA AND OXIA;Sk;0;ON;1FFE 0301;;;;N;;;;;
+1FDF;GREEK DASIA AND PERISPOMENI;Sk;0;ON;1FFE 0342;;;;N;;;;;
+1FE0;GREEK SMALL LETTER UPSILON WITH VRACHY;Ll;0;L;03C5 0306;;;;N;;;1FE8;;1FE8
+1FE1;GREEK SMALL LETTER UPSILON WITH MACRON;Ll;0;L;03C5 0304;;;;N;;;1FE9;;1FE9
+1FE2;GREEK SMALL LETTER UPSILON WITH DIALYTIKA AND VARIA;Ll;0;L;03CB 0300;;;;N;;;;;
+1FE3;GREEK SMALL LETTER UPSILON WITH DIALYTIKA AND OXIA;Ll;0;L;03B0;;;;N;;;;;
+1FE4;GREEK SMALL LETTER RHO WITH PSILI;Ll;0;L;03C1 0313;;;;N;;;;;
+1FE5;GREEK SMALL LETTER RHO WITH DASIA;Ll;0;L;03C1 0314;;;;N;;;1FEC;;1FEC
+1FE6;GREEK SMALL LETTER UPSILON WITH PERISPOMENI;Ll;0;L;03C5 0342;;;;N;;;;;
+1FE7;GREEK SMALL LETTER UPSILON WITH DIALYTIKA AND PERISPOMENI;Ll;0;L;03CB 0342;;;;N;;;;;
+1FE8;GREEK CAPITAL LETTER UPSILON WITH VRACHY;Lu;0;L;03A5 0306;;;;N;;;;1FE0;
+1FE9;GREEK CAPITAL LETTER UPSILON WITH MACRON;Lu;0;L;03A5 0304;;;;N;;;;1FE1;
+1FEA;GREEK CAPITAL LETTER UPSILON WITH VARIA;Lu;0;L;03A5 0300;;;;N;;;;1F7A;
+1FEB;GREEK CAPITAL LETTER UPSILON WITH OXIA;Lu;0;L;038E;;;;N;;;;1F7B;
+1FEC;GREEK CAPITAL LETTER RHO WITH DASIA;Lu;0;L;03A1 0314;;;;N;;;;1FE5;
+1FED;GREEK DIALYTIKA AND VARIA;Sk;0;ON;00A8 0300;;;;N;;;;;
+1FEE;GREEK DIALYTIKA AND OXIA;Sk;0;ON;0385;;;;N;;;;;
+1FEF;GREEK VARIA;Sk;0;ON;0060;;;;N;;;;;
+1FF2;GREEK SMALL LETTER OMEGA WITH VARIA AND YPOGEGRAMMENI;Ll;0;L;1F7C 0345;;;;N;;;;;
+1FF3;GREEK SMALL LETTER OMEGA WITH YPOGEGRAMMENI;Ll;0;L;03C9 0345;;;;N;;;1FFC;;1FFC
+1FF4;GREEK SMALL LETTER OMEGA WITH OXIA AND YPOGEGRAMMENI;Ll;0;L;03CE 0345;;;;N;;;;;
+1FF6;GREEK SMALL LETTER OMEGA WITH PERISPOMENI;Ll;0;L;03C9 0342;;;;N;;;;;
+1FF7;GREEK SMALL LETTER OMEGA WITH PERISPOMENI AND YPOGEGRAMMENI;Ll;0;L;1FF6 0345;;;;N;;;;;
+1FF8;GREEK CAPITAL LETTER OMICRON WITH VARIA;Lu;0;L;039F 0300;;;;N;;;;1F78;
+1FF9;GREEK CAPITAL LETTER OMICRON WITH OXIA;Lu;0;L;038C;;;;N;;;;1F79;
+1FFA;GREEK CAPITAL LETTER OMEGA WITH VARIA;Lu;0;L;03A9 0300;;;;N;;;;1F7C;
+1FFB;GREEK CAPITAL LETTER OMEGA WITH OXIA;Lu;0;L;038F;;;;N;;;;1F7D;
+1FFC;GREEK CAPITAL LETTER OMEGA WITH PROSGEGRAMMENI;Lt;0;L;03A9 0345;;;;N;;;;1FF3;
+1FFD;GREEK OXIA;Sk;0;ON;00B4;;;;N;;;;;
+1FFE;GREEK DASIA;Sk;0;ON;<compat> 0020 0314;;;;N;;;;;
+2000;EN QUAD;Zs;0;WS;2002;;;;N;;;;;
+2001;EM QUAD;Zs;0;WS;2003;;;;N;;;;;
+2002;EN SPACE;Zs;0;WS;<compat> 0020;;;;N;;;;;
+2003;EM SPACE;Zs;0;WS;<compat> 0020;;;;N;;;;;
+2004;THREE-PER-EM SPACE;Zs;0;WS;<compat> 0020;;;;N;;;;;
+2005;FOUR-PER-EM SPACE;Zs;0;WS;<compat> 0020;;;;N;;;;;
+2006;SIX-PER-EM SPACE;Zs;0;WS;<compat> 0020;;;;N;;;;;
+2007;FIGURE SPACE;Zs;0;WS;<noBreak> 0020;;;;N;;;;;
+2008;PUNCTUATION SPACE;Zs;0;WS;<compat> 0020;;;;N;;;;;
+2009;THIN SPACE;Zs;0;WS;<compat> 0020;;;;N;;;;;
+200A;HAIR SPACE;Zs;0;WS;<compat> 0020;;;;N;;;;;
+200B;ZERO WIDTH SPACE;Cf;0;BN;;;;;N;;;;;
+200C;ZERO WIDTH NON-JOINER;Cf;0;BN;;;;;N;;;;;
+200D;ZERO WIDTH JOINER;Cf;0;BN;;;;;N;;;;;
+200E;LEFT-TO-RIGHT MARK;Cf;0;L;;;;;N;;;;;
+200F;RIGHT-TO-LEFT MARK;Cf;0;R;;;;;N;;;;;
+2010;HYPHEN;Pd;0;ON;;;;;N;;;;;
+2011;NON-BREAKING HYPHEN;Pd;0;ON;<noBreak> 2010;;;;N;;;;;
+2012;FIGURE DASH;Pd;0;ON;;;;;N;;;;;
+2013;EN DASH;Pd;0;ON;;;;;N;;;;;
+2014;EM DASH;Pd;0;ON;;;;;N;;;;;
+2015;HORIZONTAL BAR;Pd;0;ON;;;;;N;QUOTATION DASH;;;;
+2016;DOUBLE VERTICAL LINE;Po;0;ON;;;;;N;DOUBLE VERTICAL BAR;;;;
+2017;DOUBLE LOW LINE;Po;0;ON;<compat> 0020 0333;;;;N;SPACING DOUBLE UNDERSCORE;;;;
+2018;LEFT SINGLE QUOTATION MARK;Pi;0;ON;;;;;N;SINGLE TURNED COMMA QUOTATION MARK;;;;
+2019;RIGHT SINGLE QUOTATION MARK;Pf;0;ON;;;;;N;SINGLE COMMA QUOTATION MARK;;;;
+201A;SINGLE LOW-9 QUOTATION MARK;Ps;0;ON;;;;;N;LOW SINGLE COMMA QUOTATION MARK;;;;
+201B;SINGLE HIGH-REVERSED-9 QUOTATION MARK;Pi;0;ON;;;;;N;SINGLE REVERSED COMMA QUOTATION MARK;;;;
+201C;LEFT DOUBLE QUOTATION MARK;Pi;0;ON;;;;;N;DOUBLE TURNED COMMA QUOTATION MARK;;;;
+201D;RIGHT DOUBLE QUOTATION MARK;Pf;0;ON;;;;;N;DOUBLE COMMA QUOTATION MARK;;;;
+201E;DOUBLE LOW-9 QUOTATION MARK;Ps;0;ON;;;;;N;LOW DOUBLE COMMA QUOTATION MARK;;;;
+201F;DOUBLE HIGH-REVERSED-9 QUOTATION MARK;Pi;0;ON;;;;;N;DOUBLE REVERSED COMMA QUOTATION MARK;;;;
+2020;DAGGER;Po;0;ON;;;;;N;;;;;
+2021;DOUBLE DAGGER;Po;0;ON;;;;;N;;;;;
+2022;BULLET;Po;0;ON;;;;;N;;;;;
+2023;TRIANGULAR BULLET;Po;0;ON;;;;;N;;;;;
+2024;ONE DOT LEADER;Po;0;ON;<compat> 002E;;;;N;;;;;
+2025;TWO DOT LEADER;Po;0;ON;<compat> 002E 002E;;;;N;;;;;
+2026;HORIZONTAL ELLIPSIS;Po;0;ON;<compat> 002E 002E 002E;;;;N;;;;;
+2027;HYPHENATION POINT;Po;0;ON;;;;;N;;;;;
+2028;LINE SEPARATOR;Zl;0;WS;;;;;N;;;;;
+2029;PARAGRAPH SEPARATOR;Zp;0;B;;;;;N;;;;;
+202A;LEFT-TO-RIGHT EMBEDDING;Cf;0;LRE;;;;;N;;;;;
+202B;RIGHT-TO-LEFT EMBEDDING;Cf;0;RLE;;;;;N;;;;;
+202C;POP DIRECTIONAL FORMATTING;Cf;0;PDF;;;;;N;;;;;
+202D;LEFT-TO-RIGHT OVERRIDE;Cf;0;LRO;;;;;N;;;;;
+202E;RIGHT-TO-LEFT OVERRIDE;Cf;0;RLO;;;;;N;;;;;
+202F;NARROW NO-BREAK SPACE;Zs;0;CS;<noBreak> 0020;;;;N;;;;;
+2030;PER MILLE SIGN;Po;0;ET;;;;;N;;;;;
+2031;PER TEN THOUSAND SIGN;Po;0;ET;;;;;N;;;;;
+2032;PRIME;Po;0;ET;;;;;N;;;;;
+2033;DOUBLE PRIME;Po;0;ET;<compat> 2032 2032;;;;N;;;;;
+2034;TRIPLE PRIME;Po;0;ET;<compat> 2032 2032 2032;;;;N;;;;;
+2035;REVERSED PRIME;Po;0;ON;;;;;N;;;;;
+2036;REVERSED DOUBLE PRIME;Po;0;ON;<compat> 2035 2035;;;;N;;;;;
+2037;REVERSED TRIPLE PRIME;Po;0;ON;<compat> 2035 2035 2035;;;;N;;;;;
+2038;CARET;Po;0;ON;;;;;N;;;;;
+2039;SINGLE LEFT-POINTING ANGLE QUOTATION MARK;Pi;0;ON;;;;;Y;LEFT POINTING SINGLE GUILLEMET;;;;
+203A;SINGLE RIGHT-POINTING ANGLE QUOTATION MARK;Pf;0;ON;;;;;Y;RIGHT POINTING SINGLE GUILLEMET;;;;
+203B;REFERENCE MARK;Po;0;ON;;;;;N;;;;;
+203C;DOUBLE EXCLAMATION MARK;Po;0;ON;<compat> 0021 0021;;;;N;;;;;
+203D;INTERROBANG;Po;0;ON;;;;;N;;;;;
+203E;OVERLINE;Po;0;ON;<compat> 0020 0305;;;;N;SPACING OVERSCORE;;;;
+203F;UNDERTIE;Pc;0;ON;;;;;N;;;;;
+2040;CHARACTER TIE;Pc;0;ON;;;;;N;;;;;
+2041;CARET INSERTION POINT;Po;0;ON;;;;;N;;;;;
+2042;ASTERISM;Po;0;ON;;;;;N;;;;;
+2043;HYPHEN BULLET;Po;0;ON;;;;;N;;;;;
+2044;FRACTION SLASH;Sm;0;CS;;;;;N;;;;;
+2045;LEFT SQUARE BRACKET WITH QUILL;Ps;0;ON;;;;;Y;;;;;
+2046;RIGHT SQUARE BRACKET WITH QUILL;Pe;0;ON;;;;;Y;;;;;
+2047;DOUBLE QUESTION MARK;Po;0;ON;<compat> 003F 003F;;;;N;;;;;
+2048;QUESTION EXCLAMATION MARK;Po;0;ON;<compat> 003F 0021;;;;N;;;;;
+2049;EXCLAMATION QUESTION MARK;Po;0;ON;<compat> 0021 003F;;;;N;;;;;
+204A;TIRONIAN SIGN ET;Po;0;ON;;;;;N;;;;;
+204B;REVERSED PILCROW SIGN;Po;0;ON;;;;;N;;;;;
+204C;BLACK LEFTWARDS BULLET;Po;0;ON;;;;;N;;;;;
+204D;BLACK RIGHTWARDS BULLET;Po;0;ON;;;;;N;;;;;
+204E;LOW ASTERISK;Po;0;ON;;;;;N;;;;;
+204F;REVERSED SEMICOLON;Po;0;ON;;;;;N;;;;;
+2050;CLOSE UP;Po;0;ON;;;;;N;;;;;
+2051;TWO ASTERISKS ALIGNED VERTICALLY;Po;0;ON;;;;;N;;;;;
+2052;COMMERCIAL MINUS SIGN;Sm;0;ON;;;;;N;;;;;
+2053;SWUNG DASH;Po;0;ON;;;;;N;;;;;
+2054;INVERTED UNDERTIE;Pc;0;ON;;;;;N;;;;;
+2055;FLOWER PUNCTUATION MARK;Po;0;ON;;;;;N;;;;;
+2056;THREE DOT PUNCTUATION;Po;0;ON;;;;;N;;;;;
+2057;QUADRUPLE PRIME;Po;0;ON;<compat> 2032 2032 2032 2032;;;;N;;;;;
+2058;FOUR DOT PUNCTUATION;Po;0;ON;;;;;N;;;;;
+2059;FIVE DOT PUNCTUATION;Po;0;ON;;;;;N;;;;;
+205A;TWO DOT PUNCTUATION;Po;0;ON;;;;;N;;;;;
+205B;FOUR DOT MARK;Po;0;ON;;;;;N;;;;;
+205C;DOTTED CROSS;Po;0;ON;;;;;N;;;;;
+205D;TRICOLON;Po;0;ON;;;;;N;;;;;
+205E;VERTICAL FOUR DOTS;Po;0;ON;;;;;N;;;;;
+205F;MEDIUM MATHEMATICAL SPACE;Zs;0;WS;<compat> 0020;;;;N;;;;;
+2060;WORD JOINER;Cf;0;BN;;;;;N;;;;;
+2061;FUNCTION APPLICATION;Cf;0;BN;;;;;N;;;;;
+2062;INVISIBLE TIMES;Cf;0;BN;;;;;N;;;;;
+2063;INVISIBLE SEPARATOR;Cf;0;BN;;;;;N;;;;;
+2064;INVISIBLE PLUS;Cf;0;BN;;;;;N;;;;;
+206A;INHIBIT SYMMETRIC SWAPPING;Cf;0;BN;;;;;N;;;;;
+206B;ACTIVATE SYMMETRIC SWAPPING;Cf;0;BN;;;;;N;;;;;
+206C;INHIBIT ARABIC FORM SHAPING;Cf;0;BN;;;;;N;;;;;
+206D;ACTIVATE ARABIC FORM SHAPING;Cf;0;BN;;;;;N;;;;;
+206E;NATIONAL DIGIT SHAPES;Cf;0;BN;;;;;N;;;;;
+206F;NOMINAL DIGIT SHAPES;Cf;0;BN;;;;;N;;;;;
+2070;SUPERSCRIPT ZERO;No;0;EN;<super> 0030;;0;0;N;SUPERSCRIPT DIGIT ZERO;;;;
+2071;SUPERSCRIPT LATIN SMALL LETTER I;Lm;0;L;<super> 0069;;;;N;;;;;
+2074;SUPERSCRIPT FOUR;No;0;EN;<super> 0034;;4;4;N;SUPERSCRIPT DIGIT FOUR;;;;
+2075;SUPERSCRIPT FIVE;No;0;EN;<super> 0035;;5;5;N;SUPERSCRIPT DIGIT FIVE;;;;
+2076;SUPERSCRIPT SIX;No;0;EN;<super> 0036;;6;6;N;SUPERSCRIPT DIGIT SIX;;;;
+2077;SUPERSCRIPT SEVEN;No;0;EN;<super> 0037;;7;7;N;SUPERSCRIPT DIGIT SEVEN;;;;
+2078;SUPERSCRIPT EIGHT;No;0;EN;<super> 0038;;8;8;N;SUPERSCRIPT DIGIT EIGHT;;;;
+2079;SUPERSCRIPT NINE;No;0;EN;<super> 0039;;9;9;N;SUPERSCRIPT DIGIT NINE;;;;
+207A;SUPERSCRIPT PLUS SIGN;Sm;0;ES;<super> 002B;;;;N;;;;;
+207B;SUPERSCRIPT MINUS;Sm;0;ES;<super> 2212;;;;N;SUPERSCRIPT HYPHEN-MINUS;;;;
+207C;SUPERSCRIPT EQUALS SIGN;Sm;0;ON;<super> 003D;;;;N;;;;;
+207D;SUPERSCRIPT LEFT PARENTHESIS;Ps;0;ON;<super> 0028;;;;Y;SUPERSCRIPT OPENING PARENTHESIS;;;;
+207E;SUPERSCRIPT RIGHT PARENTHESIS;Pe;0;ON;<super> 0029;;;;Y;SUPERSCRIPT CLOSING PARENTHESIS;;;;
+207F;SUPERSCRIPT LATIN SMALL LETTER N;Lm;0;L;<super> 006E;;;;N;;;;;
+2080;SUBSCRIPT ZERO;No;0;EN;<sub> 0030;;0;0;N;SUBSCRIPT DIGIT ZERO;;;;
+2081;SUBSCRIPT ONE;No;0;EN;<sub> 0031;;1;1;N;SUBSCRIPT DIGIT ONE;;;;
+2082;SUBSCRIPT TWO;No;0;EN;<sub> 0032;;2;2;N;SUBSCRIPT DIGIT TWO;;;;
+2083;SUBSCRIPT THREE;No;0;EN;<sub> 0033;;3;3;N;SUBSCRIPT DIGIT THREE;;;;
+2084;SUBSCRIPT FOUR;No;0;EN;<sub> 0034;;4;4;N;SUBSCRIPT DIGIT FOUR;;;;
+2085;SUBSCRIPT FIVE;No;0;EN;<sub> 0035;;5;5;N;SUBSCRIPT DIGIT FIVE;;;;
+2086;SUBSCRIPT SIX;No;0;EN;<sub> 0036;;6;6;N;SUBSCRIPT DIGIT SIX;;;;
+2087;SUBSCRIPT SEVEN;No;0;EN;<sub> 0037;;7;7;N;SUBSCRIPT DIGIT SEVEN;;;;
+2088;SUBSCRIPT EIGHT;No;0;EN;<sub> 0038;;8;8;N;SUBSCRIPT DIGIT EIGHT;;;;
+2089;SUBSCRIPT NINE;No;0;EN;<sub> 0039;;9;9;N;SUBSCRIPT DIGIT NINE;;;;
+208A;SUBSCRIPT PLUS SIGN;Sm;0;ES;<sub> 002B;;;;N;;;;;
+208B;SUBSCRIPT MINUS;Sm;0;ES;<sub> 2212;;;;N;SUBSCRIPT HYPHEN-MINUS;;;;
+208C;SUBSCRIPT EQUALS SIGN;Sm;0;ON;<sub> 003D;;;;N;;;;;
+208D;SUBSCRIPT LEFT PARENTHESIS;Ps;0;ON;<sub> 0028;;;;Y;SUBSCRIPT OPENING PARENTHESIS;;;;
+208E;SUBSCRIPT RIGHT PARENTHESIS;Pe;0;ON;<sub> 0029;;;;Y;SUBSCRIPT CLOSING PARENTHESIS;;;;
+2090;LATIN SUBSCRIPT SMALL LETTER A;Lm;0;L;<sub> 0061;;;;N;;;;;
+2091;LATIN SUBSCRIPT SMALL LETTER E;Lm;0;L;<sub> 0065;;;;N;;;;;
+2092;LATIN SUBSCRIPT SMALL LETTER O;Lm;0;L;<sub> 006F;;;;N;;;;;
+2093;LATIN SUBSCRIPT SMALL LETTER X;Lm;0;L;<sub> 0078;;;;N;;;;;
+2094;LATIN SUBSCRIPT SMALL LETTER SCHWA;Lm;0;L;<sub> 0259;;;;N;;;;;
+2095;LATIN SUBSCRIPT SMALL LETTER H;Lm;0;L;<sub> 0068;;;;N;;;;;
+2096;LATIN SUBSCRIPT SMALL LETTER K;Lm;0;L;<sub> 006B;;;;N;;;;;
+2097;LATIN SUBSCRIPT SMALL LETTER L;Lm;0;L;<sub> 006C;;;;N;;;;;
+2098;LATIN SUBSCRIPT SMALL LETTER M;Lm;0;L;<sub> 006D;;;;N;;;;;
+2099;LATIN SUBSCRIPT SMALL LETTER N;Lm;0;L;<sub> 006E;;;;N;;;;;
+209A;LATIN SUBSCRIPT SMALL LETTER P;Lm;0;L;<sub> 0070;;;;N;;;;;
+209B;LATIN SUBSCRIPT SMALL LETTER S;Lm;0;L;<sub> 0073;;;;N;;;;;
+209C;LATIN SUBSCRIPT SMALL LETTER T;Lm;0;L;<sub> 0074;;;;N;;;;;
+20A0;EURO-CURRENCY SIGN;Sc;0;ET;;;;;N;;;;;
+20A1;COLON SIGN;Sc;0;ET;;;;;N;;;;;
+20A2;CRUZEIRO SIGN;Sc;0;ET;;;;;N;;;;;
+20A3;FRENCH FRANC SIGN;Sc;0;ET;;;;;N;;;;;
+20A4;LIRA SIGN;Sc;0;ET;;;;;N;;;;;
+20A5;MILL SIGN;Sc;0;ET;;;;;N;;;;;
+20A6;NAIRA SIGN;Sc;0;ET;;;;;N;;;;;
+20A7;PESETA SIGN;Sc;0;ET;;;;;N;;;;;
+20A8;RUPEE SIGN;Sc;0;ET;<compat> 0052 0073;;;;N;;;;;
+20A9;WON SIGN;Sc;0;ET;;;;;N;;;;;
+20AA;NEW SHEQEL SIGN;Sc;0;ET;;;;;N;;;;;
+20AB;DONG SIGN;Sc;0;ET;;;;;N;;;;;
+20AC;EURO SIGN;Sc;0;ET;;;;;N;;;;;
+20AD;KIP SIGN;Sc;0;ET;;;;;N;;;;;
+20AE;TUGRIK SIGN;Sc;0;ET;;;;;N;;;;;
+20AF;DRACHMA SIGN;Sc;0;ET;;;;;N;;;;;
+20B0;GERMAN PENNY SIGN;Sc;0;ET;;;;;N;;;;;
+20B1;PESO SIGN;Sc;0;ET;;;;;N;;;;;
+20B2;GUARANI SIGN;Sc;0;ET;;;;;N;;;;;
+20B3;AUSTRAL SIGN;Sc;0;ET;;;;;N;;;;;
+20B4;HRYVNIA SIGN;Sc;0;ET;;;;;N;;;;;
+20B5;CEDI SIGN;Sc;0;ET;;;;;N;;;;;
+20B6;LIVRE TOURNOIS SIGN;Sc;0;ET;;;;;N;;;;;
+20B7;SPESMILO SIGN;Sc;0;ET;;;;;N;;;;;
+20B8;TENGE SIGN;Sc;0;ET;;;;;N;;;;;
+20B9;INDIAN RUPEE SIGN;Sc;0;ET;;;;;N;;;;;
+20D0;COMBINING LEFT HARPOON ABOVE;Mn;230;NSM;;;;;N;NON-SPACING LEFT HARPOON ABOVE;;;;
+20D1;COMBINING RIGHT HARPOON ABOVE;Mn;230;NSM;;;;;N;NON-SPACING RIGHT HARPOON ABOVE;;;;
+20D2;COMBINING LONG VERTICAL LINE OVERLAY;Mn;1;NSM;;;;;N;NON-SPACING LONG VERTICAL BAR OVERLAY;;;;
+20D3;COMBINING SHORT VERTICAL LINE OVERLAY;Mn;1;NSM;;;;;N;NON-SPACING SHORT VERTICAL BAR OVERLAY;;;;
+20D4;COMBINING ANTICLOCKWISE ARROW ABOVE;Mn;230;NSM;;;;;N;NON-SPACING ANTICLOCKWISE ARROW ABOVE;;;;
+20D5;COMBINING CLOCKWISE ARROW ABOVE;Mn;230;NSM;;;;;N;NON-SPACING CLOCKWISE ARROW ABOVE;;;;
+20D6;COMBINING LEFT ARROW ABOVE;Mn;230;NSM;;;;;N;NON-SPACING LEFT ARROW ABOVE;;;;
+20D7;COMBINING RIGHT ARROW ABOVE;Mn;230;NSM;;;;;N;NON-SPACING RIGHT ARROW ABOVE;;;;
+20D8;COMBINING RING OVERLAY;Mn;1;NSM;;;;;N;NON-SPACING RING OVERLAY;;;;
+20D9;COMBINING CLOCKWISE RING OVERLAY;Mn;1;NSM;;;;;N;NON-SPACING CLOCKWISE RING OVERLAY;;;;
+20DA;COMBINING ANTICLOCKWISE RING OVERLAY;Mn;1;NSM;;;;;N;NON-SPACING ANTICLOCKWISE RING OVERLAY;;;;
+20DB;COMBINING THREE DOTS ABOVE;Mn;230;NSM;;;;;N;NON-SPACING THREE DOTS ABOVE;;;;
+20DC;COMBINING FOUR DOTS ABOVE;Mn;230;NSM;;;;;N;NON-SPACING FOUR DOTS ABOVE;;;;
+20DD;COMBINING ENCLOSING CIRCLE;Me;0;NSM;;;;;N;ENCLOSING CIRCLE;;;;
+20DE;COMBINING ENCLOSING SQUARE;Me;0;NSM;;;;;N;ENCLOSING SQUARE;;;;
+20DF;COMBINING ENCLOSING DIAMOND;Me;0;NSM;;;;;N;ENCLOSING DIAMOND;;;;
+20E0;COMBINING ENCLOSING CIRCLE BACKSLASH;Me;0;NSM;;;;;N;ENCLOSING CIRCLE SLASH;;;;
+20E1;COMBINING LEFT RIGHT ARROW ABOVE;Mn;230;NSM;;;;;N;NON-SPACING LEFT RIGHT ARROW ABOVE;;;;
+20E2;COMBINING ENCLOSING SCREEN;Me;0;NSM;;;;;N;;;;;
+20E3;COMBINING ENCLOSING KEYCAP;Me;0;NSM;;;;;N;;;;;
+20E4;COMBINING ENCLOSING UPWARD POINTING TRIANGLE;Me;0;NSM;;;;;N;;;;;
+20E5;COMBINING REVERSE SOLIDUS OVERLAY;Mn;1;NSM;;;;;N;;;;;
+20E6;COMBINING DOUBLE VERTICAL STROKE OVERLAY;Mn;1;NSM;;;;;N;;;;;
+20E7;COMBINING ANNUITY SYMBOL;Mn;230;NSM;;;;;N;;;;;
+20E8;COMBINING TRIPLE UNDERDOT;Mn;220;NSM;;;;;N;;;;;
+20E9;COMBINING WIDE BRIDGE ABOVE;Mn;230;NSM;;;;;N;;;;;
+20EA;COMBINING LEFTWARDS ARROW OVERLAY;Mn;1;NSM;;;;;N;;;;;
+20EB;COMBINING LONG DOUBLE SOLIDUS OVERLAY;Mn;1;NSM;;;;;N;;;;;
+20EC;COMBINING RIGHTWARDS HARPOON WITH BARB DOWNWARDS;Mn;220;NSM;;;;;N;;;;;
+20ED;COMBINING LEFTWARDS HARPOON WITH BARB DOWNWARDS;Mn;220;NSM;;;;;N;;;;;
+20EE;COMBINING LEFT ARROW BELOW;Mn;220;NSM;;;;;N;;;;;
+20EF;COMBINING RIGHT ARROW BELOW;Mn;220;NSM;;;;;N;;;;;
+20F0;COMBINING ASTERISK ABOVE;Mn;230;NSM;;;;;N;;;;;
+2100;ACCOUNT OF;So;0;ON;<compat> 0061 002F 0063;;;;N;;;;;
+2101;ADDRESSED TO THE SUBJECT;So;0;ON;<compat> 0061 002F 0073;;;;N;;;;;
+2102;DOUBLE-STRUCK CAPITAL C;Lu;0;L;<font> 0043;;;;N;DOUBLE-STRUCK C;;;;
+2103;DEGREE CELSIUS;So;0;ON;<compat> 00B0 0043;;;;N;DEGREES CENTIGRADE;;;;
+2104;CENTRE LINE SYMBOL;So;0;ON;;;;;N;C L SYMBOL;;;;
+2105;CARE OF;So;0;ON;<compat> 0063 002F 006F;;;;N;;;;;
+2106;CADA UNA;So;0;ON;<compat> 0063 002F 0075;;;;N;;;;;
+2107;EULER CONSTANT;Lu;0;L;<compat> 0190;;;;N;EULERS;;;;
+2108;SCRUPLE;So;0;ON;;;;;N;;;;;
+2109;DEGREE FAHRENHEIT;So;0;ON;<compat> 00B0 0046;;;;N;DEGREES FAHRENHEIT;;;;
+210A;SCRIPT SMALL G;Ll;0;L;<font> 0067;;;;N;;;;;
+210B;SCRIPT CAPITAL H;Lu;0;L;<font> 0048;;;;N;SCRIPT H;;;;
+210C;BLACK-LETTER CAPITAL H;Lu;0;L;<font> 0048;;;;N;BLACK-LETTER H;;;;
+210D;DOUBLE-STRUCK CAPITAL H;Lu;0;L;<font> 0048;;;;N;DOUBLE-STRUCK H;;;;
+210E;PLANCK CONSTANT;Ll;0;L;<font> 0068;;;;N;;;;;
+210F;PLANCK CONSTANT OVER TWO PI;Ll;0;L;<font> 0127;;;;N;PLANCK CONSTANT OVER 2 PI;;;;
+2110;SCRIPT CAPITAL I;Lu;0;L;<font> 0049;;;;N;SCRIPT I;;;;
+2111;BLACK-LETTER CAPITAL I;Lu;0;L;<font> 0049;;;;N;BLACK-LETTER I;;;;
+2112;SCRIPT CAPITAL L;Lu;0;L;<font> 004C;;;;N;SCRIPT L;;;;
+2113;SCRIPT SMALL L;Ll;0;L;<font> 006C;;;;N;;;;;
+2114;L B BAR SYMBOL;So;0;ON;;;;;N;;;;;
+2115;DOUBLE-STRUCK CAPITAL N;Lu;0;L;<font> 004E;;;;N;DOUBLE-STRUCK N;;;;
+2116;NUMERO SIGN;So;0;ON;<compat> 004E 006F;;;;N;NUMERO;;;;
+2117;SOUND RECORDING COPYRIGHT;So;0;ON;;;;;N;;;;;
+2118;SCRIPT CAPITAL P;Sm;0;ON;;;;;N;SCRIPT P;;;;
+2119;DOUBLE-STRUCK CAPITAL P;Lu;0;L;<font> 0050;;;;N;DOUBLE-STRUCK P;;;;
+211A;DOUBLE-STRUCK CAPITAL Q;Lu;0;L;<font> 0051;;;;N;DOUBLE-STRUCK Q;;;;
+211B;SCRIPT CAPITAL R;Lu;0;L;<font> 0052;;;;N;SCRIPT R;;;;
+211C;BLACK-LETTER CAPITAL R;Lu;0;L;<font> 0052;;;;N;BLACK-LETTER R;;;;
+211D;DOUBLE-STRUCK CAPITAL R;Lu;0;L;<font> 0052;;;;N;DOUBLE-STRUCK R;;;;
+211E;PRESCRIPTION TAKE;So;0;ON;;;;;N;;;;;
+211F;RESPONSE;So;0;ON;;;;;N;;;;;
+2120;SERVICE MARK;So;0;ON;<super> 0053 004D;;;;N;;;;;
+2121;TELEPHONE SIGN;So;0;ON;<compat> 0054 0045 004C;;;;N;T E L SYMBOL;;;;
+2122;TRADE MARK SIGN;So;0;ON;<super> 0054 004D;;;;N;TRADEMARK;;;;
+2123;VERSICLE;So;0;ON;;;;;N;;;;;
+2124;DOUBLE-STRUCK CAPITAL Z;Lu;0;L;<font> 005A;;;;N;DOUBLE-STRUCK Z;;;;
+2125;OUNCE SIGN;So;0;ON;;;;;N;OUNCE;;;;
+2126;OHM SIGN;Lu;0;L;03A9;;;;N;OHM;;;03C9;
+2127;INVERTED OHM SIGN;So;0;ON;;;;;N;MHO;;;;
+2128;BLACK-LETTER CAPITAL Z;Lu;0;L;<font> 005A;;;;N;BLACK-LETTER Z;;;;
+2129;TURNED GREEK SMALL LETTER IOTA;So;0;ON;;;;;N;;;;;
+212A;KELVIN SIGN;Lu;0;L;004B;;;;N;DEGREES KELVIN;;;006B;
+212B;ANGSTROM SIGN;Lu;0;L;00C5;;;;N;ANGSTROM UNIT;;;00E5;
+212C;SCRIPT CAPITAL B;Lu;0;L;<font> 0042;;;;N;SCRIPT B;;;;
+212D;BLACK-LETTER CAPITAL C;Lu;0;L;<font> 0043;;;;N;BLACK-LETTER C;;;;
+212E;ESTIMATED SYMBOL;So;0;ET;;;;;N;;;;;
+212F;SCRIPT SMALL E;Ll;0;L;<font> 0065;;;;N;;;;;
+2130;SCRIPT CAPITAL E;Lu;0;L;<font> 0045;;;;N;SCRIPT E;;;;
+2131;SCRIPT CAPITAL F;Lu;0;L;<font> 0046;;;;N;SCRIPT F;;;;
+2132;TURNED CAPITAL F;Lu;0;L;;;;;N;TURNED F;;;214E;
+2133;SCRIPT CAPITAL M;Lu;0;L;<font> 004D;;;;N;SCRIPT M;;;;
+2134;SCRIPT SMALL O;Ll;0;L;<font> 006F;;;;N;;;;;
+2135;ALEF SYMBOL;Lo;0;L;<compat> 05D0;;;;N;FIRST TRANSFINITE CARDINAL;;;;
+2136;BET SYMBOL;Lo;0;L;<compat> 05D1;;;;N;SECOND TRANSFINITE CARDINAL;;;;
+2137;GIMEL SYMBOL;Lo;0;L;<compat> 05D2;;;;N;THIRD TRANSFINITE CARDINAL;;;;
+2138;DALET SYMBOL;Lo;0;L;<compat> 05D3;;;;N;FOURTH TRANSFINITE CARDINAL;;;;
+2139;INFORMATION SOURCE;Ll;0;L;<font> 0069;;;;N;;;;;
+213A;ROTATED CAPITAL Q;So;0;ON;;;;;N;;;;;
+213B;FACSIMILE SIGN;So;0;ON;<compat> 0046 0041 0058;;;;N;;;;;
+213C;DOUBLE-STRUCK SMALL PI;Ll;0;L;<font> 03C0;;;;N;;;;;
+213D;DOUBLE-STRUCK SMALL GAMMA;Ll;0;L;<font> 03B3;;;;N;;;;;
+213E;DOUBLE-STRUCK CAPITAL GAMMA;Lu;0;L;<font> 0393;;;;N;;;;;
+213F;DOUBLE-STRUCK CAPITAL PI;Lu;0;L;<font> 03A0;;;;N;;;;;
+2140;DOUBLE-STRUCK N-ARY SUMMATION;Sm;0;ON;<font> 2211;;;;Y;;;;;
+2141;TURNED SANS-SERIF CAPITAL G;Sm;0;ON;;;;;N;;;;;
+2142;TURNED SANS-SERIF CAPITAL L;Sm;0;ON;;;;;N;;;;;
+2143;REVERSED SANS-SERIF CAPITAL L;Sm;0;ON;;;;;N;;;;;
+2144;TURNED SANS-SERIF CAPITAL Y;Sm;0;ON;;;;;N;;;;;
+2145;DOUBLE-STRUCK ITALIC CAPITAL D;Lu;0;L;<font> 0044;;;;N;;;;;
+2146;DOUBLE-STRUCK ITALIC SMALL D;Ll;0;L;<font> 0064;;;;N;;;;;
+2147;DOUBLE-STRUCK ITALIC SMALL E;Ll;0;L;<font> 0065;;;;N;;;;;
+2148;DOUBLE-STRUCK ITALIC SMALL I;Ll;0;L;<font> 0069;;;;N;;;;;
+2149;DOUBLE-STRUCK ITALIC SMALL J;Ll;0;L;<font> 006A;;;;N;;;;;
+214A;PROPERTY LINE;So;0;ON;;;;;N;;;;;
+214B;TURNED AMPERSAND;Sm;0;ON;;;;;N;;;;;
+214C;PER SIGN;So;0;ON;;;;;N;;;;;
+214D;AKTIESELSKAB;So;0;ON;;;;;N;;;;;
+214E;TURNED SMALL F;Ll;0;L;;;;;N;;;2132;;2132
+214F;SYMBOL FOR SAMARITAN SOURCE;So;0;L;;;;;N;;;;;
+2150;VULGAR FRACTION ONE SEVENTH;No;0;ON;<fraction> 0031 2044 0037;;;1/7;N;;;;;
+2151;VULGAR FRACTION ONE NINTH;No;0;ON;<fraction> 0031 2044 0039;;;1/9;N;;;;;
+2152;VULGAR FRACTION ONE TENTH;No;0;ON;<fraction> 0031 2044 0031 0030;;;1/10;N;;;;;
+2153;VULGAR FRACTION ONE THIRD;No;0;ON;<fraction> 0031 2044 0033;;;1/3;N;FRACTION ONE THIRD;;;;
+2154;VULGAR FRACTION TWO THIRDS;No;0;ON;<fraction> 0032 2044 0033;;;2/3;N;FRACTION TWO THIRDS;;;;
+2155;VULGAR FRACTION ONE FIFTH;No;0;ON;<fraction> 0031 2044 0035;;;1/5;N;FRACTION ONE FIFTH;;;;
+2156;VULGAR FRACTION TWO FIFTHS;No;0;ON;<fraction> 0032 2044 0035;;;2/5;N;FRACTION TWO FIFTHS;;;;
+2157;VULGAR FRACTION THREE FIFTHS;No;0;ON;<fraction> 0033 2044 0035;;;3/5;N;FRACTION THREE FIFTHS;;;;
+2158;VULGAR FRACTION FOUR FIFTHS;No;0;ON;<fraction> 0034 2044 0035;;;4/5;N;FRACTION FOUR FIFTHS;;;;
+2159;VULGAR FRACTION ONE SIXTH;No;0;ON;<fraction> 0031 2044 0036;;;1/6;N;FRACTION ONE SIXTH;;;;
+215A;VULGAR FRACTION FIVE SIXTHS;No;0;ON;<fraction> 0035 2044 0036;;;5/6;N;FRACTION FIVE SIXTHS;;;;
+215B;VULGAR FRACTION ONE EIGHTH;No;0;ON;<fraction> 0031 2044 0038;;;1/8;N;FRACTION ONE EIGHTH;;;;
+215C;VULGAR FRACTION THREE EIGHTHS;No;0;ON;<fraction> 0033 2044 0038;;;3/8;N;FRACTION THREE EIGHTHS;;;;
+215D;VULGAR FRACTION FIVE EIGHTHS;No;0;ON;<fraction> 0035 2044 0038;;;5/8;N;FRACTION FIVE EIGHTHS;;;;
+215E;VULGAR FRACTION SEVEN EIGHTHS;No;0;ON;<fraction> 0037 2044 0038;;;7/8;N;FRACTION SEVEN EIGHTHS;;;;
+215F;FRACTION NUMERATOR ONE;No;0;ON;<fraction> 0031 2044;;;1;N;;;;;
+2160;ROMAN NUMERAL ONE;Nl;0;L;<compat> 0049;;;1;N;;;;2170;
+2161;ROMAN NUMERAL TWO;Nl;0;L;<compat> 0049 0049;;;2;N;;;;2171;
+2162;ROMAN NUMERAL THREE;Nl;0;L;<compat> 0049 0049 0049;;;3;N;;;;2172;
+2163;ROMAN NUMERAL FOUR;Nl;0;L;<compat> 0049 0056;;;4;N;;;;2173;
+2164;ROMAN NUMERAL FIVE;Nl;0;L;<compat> 0056;;;5;N;;;;2174;
+2165;ROMAN NUMERAL SIX;Nl;0;L;<compat> 0056 0049;;;6;N;;;;2175;
+2166;ROMAN NUMERAL SEVEN;Nl;0;L;<compat> 0056 0049 0049;;;7;N;;;;2176;
+2167;ROMAN NUMERAL EIGHT;Nl;0;L;<compat> 0056 0049 0049 0049;;;8;N;;;;2177;
+2168;ROMAN NUMERAL NINE;Nl;0;L;<compat> 0049 0058;;;9;N;;;;2178;
+2169;ROMAN NUMERAL TEN;Nl;0;L;<compat> 0058;;;10;N;;;;2179;
+216A;ROMAN NUMERAL ELEVEN;Nl;0;L;<compat> 0058 0049;;;11;N;;;;217A;
+216B;ROMAN NUMERAL TWELVE;Nl;0;L;<compat> 0058 0049 0049;;;12;N;;;;217B;
+216C;ROMAN NUMERAL FIFTY;Nl;0;L;<compat> 004C;;;50;N;;;;217C;
+216D;ROMAN NUMERAL ONE HUNDRED;Nl;0;L;<compat> 0043;;;100;N;;;;217D;
+216E;ROMAN NUMERAL FIVE HUNDRED;Nl;0;L;<compat> 0044;;;500;N;;;;217E;
+216F;ROMAN NUMERAL ONE THOUSAND;Nl;0;L;<compat> 004D;;;1000;N;;;;217F;
+2170;SMALL ROMAN NUMERAL ONE;Nl;0;L;<compat> 0069;;;1;N;;;2160;;2160
+2171;SMALL ROMAN NUMERAL TWO;Nl;0;L;<compat> 0069 0069;;;2;N;;;2161;;2161
+2172;SMALL ROMAN NUMERAL THREE;Nl;0;L;<compat> 0069 0069 0069;;;3;N;;;2162;;2162
+2173;SMALL ROMAN NUMERAL FOUR;Nl;0;L;<compat> 0069 0076;;;4;N;;;2163;;2163
+2174;SMALL ROMAN NUMERAL FIVE;Nl;0;L;<compat> 0076;;;5;N;;;2164;;2164
+2175;SMALL ROMAN NUMERAL SIX;Nl;0;L;<compat> 0076 0069;;;6;N;;;2165;;2165
+2176;SMALL ROMAN NUMERAL SEVEN;Nl;0;L;<compat> 0076 0069 0069;;;7;N;;;2166;;2166
+2177;SMALL ROMAN NUMERAL EIGHT;Nl;0;L;<compat> 0076 0069 0069 0069;;;8;N;;;2167;;2167
+2178;SMALL ROMAN NUMERAL NINE;Nl;0;L;<compat> 0069 0078;;;9;N;;;2168;;2168
+2179;SMALL ROMAN NUMERAL TEN;Nl;0;L;<compat> 0078;;;10;N;;;2169;;2169
+217A;SMALL ROMAN NUMERAL ELEVEN;Nl;0;L;<compat> 0078 0069;;;11;N;;;216A;;216A
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+217D;SMALL ROMAN NUMERAL ONE HUNDRED;Nl;0;L;<compat> 0063;;;100;N;;;216D;;216D
+217E;SMALL ROMAN NUMERAL FIVE HUNDRED;Nl;0;L;<compat> 0064;;;500;N;;;216E;;216E
+217F;SMALL ROMAN NUMERAL ONE THOUSAND;Nl;0;L;<compat> 006D;;;1000;N;;;216F;;216F
+2180;ROMAN NUMERAL ONE THOUSAND C D;Nl;0;L;;;;1000;N;;;;;
+2181;ROMAN NUMERAL FIVE THOUSAND;Nl;0;L;;;;5000;N;;;;;
+2182;ROMAN NUMERAL TEN THOUSAND;Nl;0;L;;;;10000;N;;;;;
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+2184;LATIN SMALL LETTER REVERSED C;Ll;0;L;;;;;N;;;2183;;2183
+2185;ROMAN NUMERAL SIX LATE FORM;Nl;0;L;;;;6;N;;;;;
+2186;ROMAN NUMERAL FIFTY EARLY FORM;Nl;0;L;;;;50;N;;;;;
+2187;ROMAN NUMERAL FIFTY THOUSAND;Nl;0;L;;;;50000;N;;;;;
+2188;ROMAN NUMERAL ONE HUNDRED THOUSAND;Nl;0;L;;;;100000;N;;;;;
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+2194;LEFT RIGHT ARROW;Sm;0;ON;;;;;N;;;;;
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+21A6;RIGHTWARDS ARROW FROM BAR;Sm;0;ON;;;;;N;RIGHT ARROW FROM BAR;;;;
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+21AA;RIGHTWARDS ARROW WITH HOOK;So;0;ON;;;;;N;RIGHT ARROW WITH HOOK;;;;
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+21B2;DOWNWARDS ARROW WITH TIP LEFTWARDS;So;0;ON;;;;;N;DOWN ARROW WITH TIP LEFT;;;;
+21B3;DOWNWARDS ARROW WITH TIP RIGHTWARDS;So;0;ON;;;;;N;DOWN ARROW WITH TIP RIGHT;;;;
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+21B6;ANTICLOCKWISE TOP SEMICIRCLE ARROW;So;0;ON;;;;;N;;;;;
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+21C2;DOWNWARDS HARPOON WITH BARB RIGHTWARDS;So;0;ON;;;;;N;DOWN HARPOON WITH BARB RIGHT;;;;
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+21C6;LEFTWARDS ARROW OVER RIGHTWARDS ARROW;So;0;ON;;;;;N;LEFT ARROW OVER RIGHT ARROW;;;;
+21C7;LEFTWARDS PAIRED ARROWS;So;0;ON;;;;;N;LEFT PAIRED ARROWS;;;;
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+21CC;RIGHTWARDS HARPOON OVER LEFTWARDS HARPOON;So;0;ON;;;;;N;RIGHT HARPOON OVER LEFT HARPOON;;;;
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+21D4;LEFT RIGHT DOUBLE ARROW;Sm;0;ON;;;;;N;;;;;
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+21D7;NORTH EAST DOUBLE ARROW;So;0;ON;;;;;N;UPPER RIGHT DOUBLE ARROW;;;;
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+21D9;SOUTH WEST DOUBLE ARROW;So;0;ON;;;;;N;LOWER LEFT DOUBLE ARROW;;;;
+21DA;LEFTWARDS TRIPLE ARROW;So;0;ON;;;;;N;LEFT TRIPLE ARROW;;;;
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+21DD;RIGHTWARDS SQUIGGLE ARROW;So;0;ON;;;;;N;RIGHT SQUIGGLE ARROW;;;;
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+21DF;DOWNWARDS ARROW WITH DOUBLE STROKE;So;0;ON;;;;;N;DOWN ARROW WITH DOUBLE STROKE;;;;
+21E0;LEFTWARDS DASHED ARROW;So;0;ON;;;;;N;LEFT DASHED ARROW;;;;
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+21E4;LEFTWARDS ARROW TO BAR;So;0;ON;;;;;N;LEFT ARROW TO BAR;;;;
+21E5;RIGHTWARDS ARROW TO BAR;So;0;ON;;;;;N;RIGHT ARROW TO BAR;;;;
+21E6;LEFTWARDS WHITE ARROW;So;0;ON;;;;;N;WHITE LEFT ARROW;;;;
+21E7;UPWARDS WHITE ARROW;So;0;ON;;;;;N;WHITE UP ARROW;;;;
+21E8;RIGHTWARDS WHITE ARROW;So;0;ON;;;;;N;WHITE RIGHT ARROW;;;;
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+21EA;UPWARDS WHITE ARROW FROM BAR;So;0;ON;;;;;N;WHITE UP ARROW FROM BAR;;;;
+21EB;UPWARDS WHITE ARROW ON PEDESTAL;So;0;ON;;;;;N;;;;;
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+21EE;UPWARDS WHITE DOUBLE ARROW;So;0;ON;;;;;N;;;;;
+21EF;UPWARDS WHITE DOUBLE ARROW ON PEDESTAL;So;0;ON;;;;;N;;;;;
+21F0;RIGHTWARDS WHITE ARROW FROM WALL;So;0;ON;;;;;N;;;;;
+21F1;NORTH WEST ARROW TO CORNER;So;0;ON;;;;;N;;;;;
+21F2;SOUTH EAST ARROW TO CORNER;So;0;ON;;;;;N;;;;;
+21F3;UP DOWN WHITE ARROW;So;0;ON;;;;;N;;;;;
+21F4;RIGHT ARROW WITH SMALL CIRCLE;Sm;0;ON;;;;;N;;;;;
+21F5;DOWNWARDS ARROW LEFTWARDS OF UPWARDS ARROW;Sm;0;ON;;;;;N;;;;;
+21F6;THREE RIGHTWARDS ARROWS;Sm;0;ON;;;;;N;;;;;
+21F7;LEFTWARDS ARROW WITH VERTICAL STROKE;Sm;0;ON;;;;;N;;;;;
+21F8;RIGHTWARDS ARROW WITH VERTICAL STROKE;Sm;0;ON;;;;;N;;;;;
+21F9;LEFT RIGHT ARROW WITH VERTICAL STROKE;Sm;0;ON;;;;;N;;;;;
+21FA;LEFTWARDS ARROW WITH DOUBLE VERTICAL STROKE;Sm;0;ON;;;;;N;;;;;
+21FB;RIGHTWARDS ARROW WITH DOUBLE VERTICAL STROKE;Sm;0;ON;;;;;N;;;;;
+21FC;LEFT RIGHT ARROW WITH DOUBLE VERTICAL STROKE;Sm;0;ON;;;;;N;;;;;
+21FD;LEFTWARDS OPEN-HEADED ARROW;Sm;0;ON;;;;;N;;;;;
+21FE;RIGHTWARDS OPEN-HEADED ARROW;Sm;0;ON;;;;;N;;;;;
+21FF;LEFT RIGHT OPEN-HEADED ARROW;Sm;0;ON;;;;;N;;;;;
+2200;FOR ALL;Sm;0;ON;;;;;N;;;;;
+2201;COMPLEMENT;Sm;0;ON;;;;;Y;;;;;
+2202;PARTIAL DIFFERENTIAL;Sm;0;ON;;;;;Y;;;;;
+2203;THERE EXISTS;Sm;0;ON;;;;;Y;;;;;
+2204;THERE DOES NOT EXIST;Sm;0;ON;2203 0338;;;;Y;;;;;
+2205;EMPTY SET;Sm;0;ON;;;;;N;;;;;
+2206;INCREMENT;Sm;0;ON;;;;;N;;;;;
+2207;NABLA;Sm;0;ON;;;;;N;;;;;
+2208;ELEMENT OF;Sm;0;ON;;;;;Y;;;;;
+2209;NOT AN ELEMENT OF;Sm;0;ON;2208 0338;;;;Y;;;;;
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+220B;CONTAINS AS MEMBER;Sm;0;ON;;;;;Y;;;;;
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+220D;SMALL CONTAINS AS MEMBER;Sm;0;ON;;;;;Y;;;;;
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+220F;N-ARY PRODUCT;Sm;0;ON;;;;;N;;;;;
+2210;N-ARY COPRODUCT;Sm;0;ON;;;;;N;;;;;
+2211;N-ARY SUMMATION;Sm;0;ON;;;;;Y;;;;;
+2212;MINUS SIGN;Sm;0;ES;;;;;N;;;;;
+2213;MINUS-OR-PLUS SIGN;Sm;0;ET;;;;;N;;;;;
+2214;DOT PLUS;Sm;0;ON;;;;;N;;;;;
+2215;DIVISION SLASH;Sm;0;ON;;;;;Y;;;;;
+2216;SET MINUS;Sm;0;ON;;;;;Y;;;;;
+2217;ASTERISK OPERATOR;Sm;0;ON;;;;;N;;;;;
+2218;RING OPERATOR;Sm;0;ON;;;;;N;;;;;
+2219;BULLET OPERATOR;Sm;0;ON;;;;;N;;;;;
+221A;SQUARE ROOT;Sm;0;ON;;;;;Y;;;;;
+221B;CUBE ROOT;Sm;0;ON;;;;;Y;;;;;
+221C;FOURTH ROOT;Sm;0;ON;;;;;Y;;;;;
+221D;PROPORTIONAL TO;Sm;0;ON;;;;;Y;;;;;
+221E;INFINITY;Sm;0;ON;;;;;N;;;;;
+221F;RIGHT ANGLE;Sm;0;ON;;;;;Y;;;;;
+2220;ANGLE;Sm;0;ON;;;;;Y;;;;;
+2221;MEASURED ANGLE;Sm;0;ON;;;;;Y;;;;;
+2222;SPHERICAL ANGLE;Sm;0;ON;;;;;Y;;;;;
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+2227;LOGICAL AND;Sm;0;ON;;;;;N;;;;;
+2228;LOGICAL OR;Sm;0;ON;;;;;N;;;;;
+2229;INTERSECTION;Sm;0;ON;;;;;N;;;;;
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+222F;SURFACE INTEGRAL;Sm;0;ON;<compat> 222E 222E;;;;Y;;;;;
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+2232;CLOCKWISE CONTOUR INTEGRAL;Sm;0;ON;;;;;Y;;;;;
+2233;ANTICLOCKWISE CONTOUR INTEGRAL;Sm;0;ON;;;;;Y;;;;;
+2234;THEREFORE;Sm;0;ON;;;;;N;;;;;
+2235;BECAUSE;Sm;0;ON;;;;;N;;;;;
+2236;RATIO;Sm;0;ON;;;;;N;;;;;
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+2238;DOT MINUS;Sm;0;ON;;;;;N;;;;;
+2239;EXCESS;Sm;0;ON;;;;;Y;;;;;
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+223F;SINE WAVE;Sm;0;ON;;;;;Y;;;;;
+2240;WREATH PRODUCT;Sm;0;ON;;;;;Y;;;;;
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+2245;APPROXIMATELY EQUAL TO;Sm;0;ON;;;;;Y;;;;;
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+224B;TRIPLE TILDE;Sm;0;ON;;;;;Y;;;;;
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+2250;APPROACHES THE LIMIT;Sm;0;ON;;;;;N;;;;;
+2251;GEOMETRICALLY EQUAL TO;Sm;0;ON;;;;;N;;;;;
+2252;APPROXIMATELY EQUAL TO OR THE IMAGE OF;Sm;0;ON;;;;;Y;;;;;
+2253;IMAGE OF OR APPROXIMATELY EQUAL TO;Sm;0;ON;;;;;Y;;;;;
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+2257;RING EQUAL TO;Sm;0;ON;;;;;N;;;;;
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+2259;ESTIMATES;Sm;0;ON;;;;;N;;;;;
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+225B;STAR EQUALS;Sm;0;ON;;;;;N;;;;;
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+225D;EQUAL TO BY DEFINITION;Sm;0;ON;;;;;N;;;;;
+225E;MEASURED BY;Sm;0;ON;;;;;N;;;;;
+225F;QUESTIONED EQUAL TO;Sm;0;ON;;;;;Y;;;;;
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+2261;IDENTICAL TO;Sm;0;ON;;;;;N;;;;;
+2262;NOT IDENTICAL TO;Sm;0;ON;2261 0338;;;;Y;;;;;
+2263;STRICTLY EQUIVALENT TO;Sm;0;ON;;;;;N;;;;;
+2264;LESS-THAN OR EQUAL TO;Sm;0;ON;;;;;Y;LESS THAN OR EQUAL TO;;;;
+2265;GREATER-THAN OR EQUAL TO;Sm;0;ON;;;;;Y;GREATER THAN OR EQUAL TO;;;;
+2266;LESS-THAN OVER EQUAL TO;Sm;0;ON;;;;;Y;LESS THAN OVER EQUAL TO;;;;
+2267;GREATER-THAN OVER EQUAL TO;Sm;0;ON;;;;;Y;GREATER THAN OVER EQUAL TO;;;;
+2268;LESS-THAN BUT NOT EQUAL TO;Sm;0;ON;;;;;Y;LESS THAN BUT NOT EQUAL TO;;;;
+2269;GREATER-THAN BUT NOT EQUAL TO;Sm;0;ON;;;;;Y;GREATER THAN BUT NOT EQUAL TO;;;;
+226A;MUCH LESS-THAN;Sm;0;ON;;;;;Y;MUCH LESS THAN;;;;
+226B;MUCH GREATER-THAN;Sm;0;ON;;;;;Y;MUCH GREATER THAN;;;;
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+2272;LESS-THAN OR EQUIVALENT TO;Sm;0;ON;;;;;Y;LESS THAN OR EQUIVALENT TO;;;;
+2273;GREATER-THAN OR EQUIVALENT TO;Sm;0;ON;;;;;Y;GREATER THAN OR EQUIVALENT TO;;;;
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+2275;NEITHER GREATER-THAN NOR EQUIVALENT TO;Sm;0;ON;2273 0338;;;;Y;NEITHER GREATER THAN NOR EQUIVALENT TO;;;;
+2276;LESS-THAN OR GREATER-THAN;Sm;0;ON;;;;;Y;LESS THAN OR GREATER THAN;;;;
+2277;GREATER-THAN OR LESS-THAN;Sm;0;ON;;;;;Y;GREATER THAN OR LESS THAN;;;;
+2278;NEITHER LESS-THAN NOR GREATER-THAN;Sm;0;ON;2276 0338;;;;Y;NEITHER LESS THAN NOR GREATER THAN;;;;
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+227B;SUCCEEDS;Sm;0;ON;;;;;Y;;;;;
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+227D;SUCCEEDS OR EQUAL TO;Sm;0;ON;;;;;Y;;;;;
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+22F4;SMALL ELEMENT OF WITH VERTICAL BAR AT END OF HORIZONTAL STROKE;Sm;0;ON;;;;;Y;;;;;
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+2394;SOFTWARE-FUNCTION SYMBOL;So;0;ON;;;;;N;;;;;
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+2397;PREVIOUS PAGE;So;0;ON;;;;;N;;;;;
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+23AA;CURLY BRACKET EXTENSION;Sm;0;ON;;;;;N;;;;;
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+23AC;RIGHT CURLY BRACKET MIDDLE PIECE;Sm;0;ON;;;;;N;;;;;
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+23B2;SUMMATION TOP;Sm;0;ON;;;;;N;;;;;
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+23B4;TOP SQUARE BRACKET;So;0;ON;;;;;N;;;;;
+23B5;BOTTOM SQUARE BRACKET;So;0;ON;;;;;N;;;;;
+23B6;BOTTOM SQUARE BRACKET OVER TOP SQUARE BRACKET;So;0;ON;;;;;N;;;;;
+23B7;RADICAL SYMBOL BOTTOM;So;0;ON;;;;;N;;;;;
+23B8;LEFT VERTICAL BOX LINE;So;0;ON;;;;;N;;;;;
+23B9;RIGHT VERTICAL BOX LINE;So;0;ON;;;;;N;;;;;
+23BA;HORIZONTAL SCAN LINE-1;So;0;ON;;;;;N;;;;;
+23BB;HORIZONTAL SCAN LINE-3;So;0;ON;;;;;N;;;;;
+23BC;HORIZONTAL SCAN LINE-7;So;0;ON;;;;;N;;;;;
+23BD;HORIZONTAL SCAN LINE-9;So;0;ON;;;;;N;;;;;
+23BE;DENTISTRY SYMBOL LIGHT VERTICAL AND TOP RIGHT;So;0;ON;;;;;N;;;;;
+23BF;DENTISTRY SYMBOL LIGHT VERTICAL AND BOTTOM RIGHT;So;0;ON;;;;;N;;;;;
+23C0;DENTISTRY SYMBOL LIGHT VERTICAL WITH CIRCLE;So;0;ON;;;;;N;;;;;
+23C1;DENTISTRY SYMBOL LIGHT DOWN AND HORIZONTAL WITH CIRCLE;So;0;ON;;;;;N;;;;;
+23C2;DENTISTRY SYMBOL LIGHT UP AND HORIZONTAL WITH CIRCLE;So;0;ON;;;;;N;;;;;
+23C3;DENTISTRY SYMBOL LIGHT VERTICAL WITH TRIANGLE;So;0;ON;;;;;N;;;;;
+23C4;DENTISTRY SYMBOL LIGHT DOWN AND HORIZONTAL WITH TRIANGLE;So;0;ON;;;;;N;;;;;
+23C5;DENTISTRY SYMBOL LIGHT UP AND HORIZONTAL WITH TRIANGLE;So;0;ON;;;;;N;;;;;
+23C6;DENTISTRY SYMBOL LIGHT VERTICAL AND WAVE;So;0;ON;;;;;N;;;;;
+23C7;DENTISTRY SYMBOL LIGHT DOWN AND HORIZONTAL WITH WAVE;So;0;ON;;;;;N;;;;;
+23C8;DENTISTRY SYMBOL LIGHT UP AND HORIZONTAL WITH WAVE;So;0;ON;;;;;N;;;;;
+23C9;DENTISTRY SYMBOL LIGHT DOWN AND HORIZONTAL;So;0;ON;;;;;N;;;;;
+23CA;DENTISTRY SYMBOL LIGHT UP AND HORIZONTAL;So;0;ON;;;;;N;;;;;
+23CB;DENTISTRY SYMBOL LIGHT VERTICAL AND TOP LEFT;So;0;ON;;;;;N;;;;;
+23CC;DENTISTRY SYMBOL LIGHT VERTICAL AND BOTTOM LEFT;So;0;ON;;;;;N;;;;;
+23CD;SQUARE FOOT;So;0;ON;;;;;N;;;;;
+23CE;RETURN SYMBOL;So;0;ON;;;;;N;;;;;
+23CF;EJECT SYMBOL;So;0;ON;;;;;N;;;;;
+23D0;VERTICAL LINE EXTENSION;So;0;ON;;;;;N;;;;;
+23D1;METRICAL BREVE;So;0;ON;;;;;N;;;;;
+23D2;METRICAL LONG OVER SHORT;So;0;ON;;;;;N;;;;;
+23D3;METRICAL SHORT OVER LONG;So;0;ON;;;;;N;;;;;
+23D4;METRICAL LONG OVER TWO SHORTS;So;0;ON;;;;;N;;;;;
+23D5;METRICAL TWO SHORTS OVER LONG;So;0;ON;;;;;N;;;;;
+23D6;METRICAL TWO SHORTS JOINED;So;0;ON;;;;;N;;;;;
+23D7;METRICAL TRISEME;So;0;ON;;;;;N;;;;;
+23D8;METRICAL TETRASEME;So;0;ON;;;;;N;;;;;
+23D9;METRICAL PENTASEME;So;0;ON;;;;;N;;;;;
+23DA;EARTH GROUND;So;0;ON;;;;;N;;;;;
+23DB;FUSE;So;0;ON;;;;;N;;;;;
+23DC;TOP PARENTHESIS;Sm;0;ON;;;;;N;;;;;
+23DD;BOTTOM PARENTHESIS;Sm;0;ON;;;;;N;;;;;
+23DE;TOP CURLY BRACKET;Sm;0;ON;;;;;N;;;;;
+23DF;BOTTOM CURLY BRACKET;Sm;0;ON;;;;;N;;;;;
+23E0;TOP TORTOISE SHELL BRACKET;Sm;0;ON;;;;;N;;;;;
+23E1;BOTTOM TORTOISE SHELL BRACKET;Sm;0;ON;;;;;N;;;;;
+23E2;WHITE TRAPEZIUM;So;0;ON;;;;;N;;;;;
+23E3;BENZENE RING WITH CIRCLE;So;0;ON;;;;;N;;;;;
+23E4;STRAIGHTNESS;So;0;ON;;;;;N;;;;;
+23E5;FLATNESS;So;0;ON;;;;;N;;;;;
+23E6;AC CURRENT;So;0;ON;;;;;N;;;;;
+23E7;ELECTRICAL INTERSECTION;So;0;ON;;;;;N;;;;;
+23E8;DECIMAL EXPONENT SYMBOL;So;0;ON;;;;;N;;;;;
+23E9;BLACK RIGHT-POINTING DOUBLE TRIANGLE;So;0;ON;;;;;N;;;;;
+23EA;BLACK LEFT-POINTING DOUBLE TRIANGLE;So;0;ON;;;;;N;;;;;
+23EB;BLACK UP-POINTING DOUBLE TRIANGLE;So;0;ON;;;;;N;;;;;
+23EC;BLACK DOWN-POINTING DOUBLE TRIANGLE;So;0;ON;;;;;N;;;;;
+23ED;BLACK RIGHT-POINTING DOUBLE TRIANGLE WITH VERTICAL BAR;So;0;ON;;;;;N;;;;;
+23EE;BLACK LEFT-POINTING DOUBLE TRIANGLE WITH VERTICAL BAR;So;0;ON;;;;;N;;;;;
+23EF;BLACK RIGHT-POINTING TRIANGLE WITH DOUBLE VERTICAL BAR;So;0;ON;;;;;N;;;;;
+23F0;ALARM CLOCK;So;0;ON;;;;;N;;;;;
+23F1;STOPWATCH;So;0;ON;;;;;N;;;;;
+23F2;TIMER CLOCK;So;0;ON;;;;;N;;;;;
+23F3;HOURGLASS WITH FLOWING SAND;So;0;ON;;;;;N;;;;;
+2400;SYMBOL FOR NULL;So;0;ON;;;;;N;GRAPHIC FOR NULL;;;;
+2401;SYMBOL FOR START OF HEADING;So;0;ON;;;;;N;GRAPHIC FOR START OF HEADING;;;;
+2402;SYMBOL FOR START OF TEXT;So;0;ON;;;;;N;GRAPHIC FOR START OF TEXT;;;;
+2403;SYMBOL FOR END OF TEXT;So;0;ON;;;;;N;GRAPHIC FOR END OF TEXT;;;;
+2404;SYMBOL FOR END OF TRANSMISSION;So;0;ON;;;;;N;GRAPHIC FOR END OF TRANSMISSION;;;;
+2405;SYMBOL FOR ENQUIRY;So;0;ON;;;;;N;GRAPHIC FOR ENQUIRY;;;;
+2406;SYMBOL FOR ACKNOWLEDGE;So;0;ON;;;;;N;GRAPHIC FOR ACKNOWLEDGE;;;;
+2407;SYMBOL FOR BELL;So;0;ON;;;;;N;GRAPHIC FOR BELL;;;;
+2408;SYMBOL FOR BACKSPACE;So;0;ON;;;;;N;GRAPHIC FOR BACKSPACE;;;;
+2409;SYMBOL FOR HORIZONTAL TABULATION;So;0;ON;;;;;N;GRAPHIC FOR HORIZONTAL TABULATION;;;;
+240A;SYMBOL FOR LINE FEED;So;0;ON;;;;;N;GRAPHIC FOR LINE FEED;;;;
+240B;SYMBOL FOR VERTICAL TABULATION;So;0;ON;;;;;N;GRAPHIC FOR VERTICAL TABULATION;;;;
+240C;SYMBOL FOR FORM FEED;So;0;ON;;;;;N;GRAPHIC FOR FORM FEED;;;;
+240D;SYMBOL FOR CARRIAGE RETURN;So;0;ON;;;;;N;GRAPHIC FOR CARRIAGE RETURN;;;;
+240E;SYMBOL FOR SHIFT OUT;So;0;ON;;;;;N;GRAPHIC FOR SHIFT OUT;;;;
+240F;SYMBOL FOR SHIFT IN;So;0;ON;;;;;N;GRAPHIC FOR SHIFT IN;;;;
+2410;SYMBOL FOR DATA LINK ESCAPE;So;0;ON;;;;;N;GRAPHIC FOR DATA LINK ESCAPE;;;;
+2411;SYMBOL FOR DEVICE CONTROL ONE;So;0;ON;;;;;N;GRAPHIC FOR DEVICE CONTROL ONE;;;;
+2412;SYMBOL FOR DEVICE CONTROL TWO;So;0;ON;;;;;N;GRAPHIC FOR DEVICE CONTROL TWO;;;;
+2413;SYMBOL FOR DEVICE CONTROL THREE;So;0;ON;;;;;N;GRAPHIC FOR DEVICE CONTROL THREE;;;;
+2414;SYMBOL FOR DEVICE CONTROL FOUR;So;0;ON;;;;;N;GRAPHIC FOR DEVICE CONTROL FOUR;;;;
+2415;SYMBOL FOR NEGATIVE ACKNOWLEDGE;So;0;ON;;;;;N;GRAPHIC FOR NEGATIVE ACKNOWLEDGE;;;;
+2416;SYMBOL FOR SYNCHRONOUS IDLE;So;0;ON;;;;;N;GRAPHIC FOR SYNCHRONOUS IDLE;;;;
+2417;SYMBOL FOR END OF TRANSMISSION BLOCK;So;0;ON;;;;;N;GRAPHIC FOR END OF TRANSMISSION BLOCK;;;;
+2418;SYMBOL FOR CANCEL;So;0;ON;;;;;N;GRAPHIC FOR CANCEL;;;;
+2419;SYMBOL FOR END OF MEDIUM;So;0;ON;;;;;N;GRAPHIC FOR END OF MEDIUM;;;;
+241A;SYMBOL FOR SUBSTITUTE;So;0;ON;;;;;N;GRAPHIC FOR SUBSTITUTE;;;;
+241B;SYMBOL FOR ESCAPE;So;0;ON;;;;;N;GRAPHIC FOR ESCAPE;;;;
+241C;SYMBOL FOR FILE SEPARATOR;So;0;ON;;;;;N;GRAPHIC FOR FILE SEPARATOR;;;;
+241D;SYMBOL FOR GROUP SEPARATOR;So;0;ON;;;;;N;GRAPHIC FOR GROUP SEPARATOR;;;;
+241E;SYMBOL FOR RECORD SEPARATOR;So;0;ON;;;;;N;GRAPHIC FOR RECORD SEPARATOR;;;;
+241F;SYMBOL FOR UNIT SEPARATOR;So;0;ON;;;;;N;GRAPHIC FOR UNIT SEPARATOR;;;;
+2420;SYMBOL FOR SPACE;So;0;ON;;;;;N;GRAPHIC FOR SPACE;;;;
+2421;SYMBOL FOR DELETE;So;0;ON;;;;;N;GRAPHIC FOR DELETE;;;;
+2422;BLANK SYMBOL;So;0;ON;;;;;N;BLANK;;;;
+2423;OPEN BOX;So;0;ON;;;;;N;;;;;
+2424;SYMBOL FOR NEWLINE;So;0;ON;;;;;N;GRAPHIC FOR NEWLINE;;;;
+2425;SYMBOL FOR DELETE FORM TWO;So;0;ON;;;;;N;;;;;
+2426;SYMBOL FOR SUBSTITUTE FORM TWO;So;0;ON;;;;;N;;;;;
+2440;OCR HOOK;So;0;ON;;;;;N;;;;;
+2441;OCR CHAIR;So;0;ON;;;;;N;;;;;
+2442;OCR FORK;So;0;ON;;;;;N;;;;;
+2443;OCR INVERTED FORK;So;0;ON;;;;;N;;;;;
+2444;OCR BELT BUCKLE;So;0;ON;;;;;N;;;;;
+2445;OCR BOW TIE;So;0;ON;;;;;N;;;;;
+2446;OCR BRANCH BANK IDENTIFICATION;So;0;ON;;;;;N;;;;;
+2447;OCR AMOUNT OF CHECK;So;0;ON;;;;;N;;;;;
+2448;OCR DASH;So;0;ON;;;;;N;;;;;
+2449;OCR CUSTOMER ACCOUNT NUMBER;So;0;ON;;;;;N;;;;;
+244A;OCR DOUBLE BACKSLASH;So;0;ON;;;;;N;;;;;
+2460;CIRCLED DIGIT ONE;No;0;ON;<circle> 0031;;1;1;N;;;;;
+2461;CIRCLED DIGIT TWO;No;0;ON;<circle> 0032;;2;2;N;;;;;
+2462;CIRCLED DIGIT THREE;No;0;ON;<circle> 0033;;3;3;N;;;;;
+2463;CIRCLED DIGIT FOUR;No;0;ON;<circle> 0034;;4;4;N;;;;;
+2464;CIRCLED DIGIT FIVE;No;0;ON;<circle> 0035;;5;5;N;;;;;
+2465;CIRCLED DIGIT SIX;No;0;ON;<circle> 0036;;6;6;N;;;;;
+2466;CIRCLED DIGIT SEVEN;No;0;ON;<circle> 0037;;7;7;N;;;;;
+2467;CIRCLED DIGIT EIGHT;No;0;ON;<circle> 0038;;8;8;N;;;;;
+2468;CIRCLED DIGIT NINE;No;0;ON;<circle> 0039;;9;9;N;;;;;
+2469;CIRCLED NUMBER TEN;No;0;ON;<circle> 0031 0030;;;10;N;;;;;
+246A;CIRCLED NUMBER ELEVEN;No;0;ON;<circle> 0031 0031;;;11;N;;;;;
+246B;CIRCLED NUMBER TWELVE;No;0;ON;<circle> 0031 0032;;;12;N;;;;;
+246C;CIRCLED NUMBER THIRTEEN;No;0;ON;<circle> 0031 0033;;;13;N;;;;;
+246D;CIRCLED NUMBER FOURTEEN;No;0;ON;<circle> 0031 0034;;;14;N;;;;;
+246E;CIRCLED NUMBER FIFTEEN;No;0;ON;<circle> 0031 0035;;;15;N;;;;;
+246F;CIRCLED NUMBER SIXTEEN;No;0;ON;<circle> 0031 0036;;;16;N;;;;;
+2470;CIRCLED NUMBER SEVENTEEN;No;0;ON;<circle> 0031 0037;;;17;N;;;;;
+2471;CIRCLED NUMBER EIGHTEEN;No;0;ON;<circle> 0031 0038;;;18;N;;;;;
+2472;CIRCLED NUMBER NINETEEN;No;0;ON;<circle> 0031 0039;;;19;N;;;;;
+2473;CIRCLED NUMBER TWENTY;No;0;ON;<circle> 0032 0030;;;20;N;;;;;
+2474;PARENTHESIZED DIGIT ONE;No;0;ON;<compat> 0028 0031 0029;;1;1;N;;;;;
+2475;PARENTHESIZED DIGIT TWO;No;0;ON;<compat> 0028 0032 0029;;2;2;N;;;;;
+2476;PARENTHESIZED DIGIT THREE;No;0;ON;<compat> 0028 0033 0029;;3;3;N;;;;;
+2477;PARENTHESIZED DIGIT FOUR;No;0;ON;<compat> 0028 0034 0029;;4;4;N;;;;;
+2478;PARENTHESIZED DIGIT FIVE;No;0;ON;<compat> 0028 0035 0029;;5;5;N;;;;;
+2479;PARENTHESIZED DIGIT SIX;No;0;ON;<compat> 0028 0036 0029;;6;6;N;;;;;
+247A;PARENTHESIZED DIGIT SEVEN;No;0;ON;<compat> 0028 0037 0029;;7;7;N;;;;;
+247B;PARENTHESIZED DIGIT EIGHT;No;0;ON;<compat> 0028 0038 0029;;8;8;N;;;;;
+247C;PARENTHESIZED DIGIT NINE;No;0;ON;<compat> 0028 0039 0029;;9;9;N;;;;;
+247D;PARENTHESIZED NUMBER TEN;No;0;ON;<compat> 0028 0031 0030 0029;;;10;N;;;;;
+247E;PARENTHESIZED NUMBER ELEVEN;No;0;ON;<compat> 0028 0031 0031 0029;;;11;N;;;;;
+247F;PARENTHESIZED NUMBER TWELVE;No;0;ON;<compat> 0028 0031 0032 0029;;;12;N;;;;;
+2480;PARENTHESIZED NUMBER THIRTEEN;No;0;ON;<compat> 0028 0031 0033 0029;;;13;N;;;;;
+2481;PARENTHESIZED NUMBER FOURTEEN;No;0;ON;<compat> 0028 0031 0034 0029;;;14;N;;;;;
+2482;PARENTHESIZED NUMBER FIFTEEN;No;0;ON;<compat> 0028 0031 0035 0029;;;15;N;;;;;
+2483;PARENTHESIZED NUMBER SIXTEEN;No;0;ON;<compat> 0028 0031 0036 0029;;;16;N;;;;;
+2484;PARENTHESIZED NUMBER SEVENTEEN;No;0;ON;<compat> 0028 0031 0037 0029;;;17;N;;;;;
+2485;PARENTHESIZED NUMBER EIGHTEEN;No;0;ON;<compat> 0028 0031 0038 0029;;;18;N;;;;;
+2486;PARENTHESIZED NUMBER NINETEEN;No;0;ON;<compat> 0028 0031 0039 0029;;;19;N;;;;;
+2487;PARENTHESIZED NUMBER TWENTY;No;0;ON;<compat> 0028 0032 0030 0029;;;20;N;;;;;
+2488;DIGIT ONE FULL STOP;No;0;EN;<compat> 0031 002E;;1;1;N;DIGIT ONE PERIOD;;;;
+2489;DIGIT TWO FULL STOP;No;0;EN;<compat> 0032 002E;;2;2;N;DIGIT TWO PERIOD;;;;
+248A;DIGIT THREE FULL STOP;No;0;EN;<compat> 0033 002E;;3;3;N;DIGIT THREE PERIOD;;;;
+248B;DIGIT FOUR FULL STOP;No;0;EN;<compat> 0034 002E;;4;4;N;DIGIT FOUR PERIOD;;;;
+248C;DIGIT FIVE FULL STOP;No;0;EN;<compat> 0035 002E;;5;5;N;DIGIT FIVE PERIOD;;;;
+248D;DIGIT SIX FULL STOP;No;0;EN;<compat> 0036 002E;;6;6;N;DIGIT SIX PERIOD;;;;
+248E;DIGIT SEVEN FULL STOP;No;0;EN;<compat> 0037 002E;;7;7;N;DIGIT SEVEN PERIOD;;;;
+248F;DIGIT EIGHT FULL STOP;No;0;EN;<compat> 0038 002E;;8;8;N;DIGIT EIGHT PERIOD;;;;
+2490;DIGIT NINE FULL STOP;No;0;EN;<compat> 0039 002E;;9;9;N;DIGIT NINE PERIOD;;;;
+2491;NUMBER TEN FULL STOP;No;0;EN;<compat> 0031 0030 002E;;;10;N;NUMBER TEN PERIOD;;;;
+2492;NUMBER ELEVEN FULL STOP;No;0;EN;<compat> 0031 0031 002E;;;11;N;NUMBER ELEVEN PERIOD;;;;
+2493;NUMBER TWELVE FULL STOP;No;0;EN;<compat> 0031 0032 002E;;;12;N;NUMBER TWELVE PERIOD;;;;
+2494;NUMBER THIRTEEN FULL STOP;No;0;EN;<compat> 0031 0033 002E;;;13;N;NUMBER THIRTEEN PERIOD;;;;
+2495;NUMBER FOURTEEN FULL STOP;No;0;EN;<compat> 0031 0034 002E;;;14;N;NUMBER FOURTEEN PERIOD;;;;
+2496;NUMBER FIFTEEN FULL STOP;No;0;EN;<compat> 0031 0035 002E;;;15;N;NUMBER FIFTEEN PERIOD;;;;
+2497;NUMBER SIXTEEN FULL STOP;No;0;EN;<compat> 0031 0036 002E;;;16;N;NUMBER SIXTEEN PERIOD;;;;
+2498;NUMBER SEVENTEEN FULL STOP;No;0;EN;<compat> 0031 0037 002E;;;17;N;NUMBER SEVENTEEN PERIOD;;;;
+2499;NUMBER EIGHTEEN FULL STOP;No;0;EN;<compat> 0031 0038 002E;;;18;N;NUMBER EIGHTEEN PERIOD;;;;
+249A;NUMBER NINETEEN FULL STOP;No;0;EN;<compat> 0031 0039 002E;;;19;N;NUMBER NINETEEN PERIOD;;;;
+249B;NUMBER TWENTY FULL STOP;No;0;EN;<compat> 0032 0030 002E;;;20;N;NUMBER TWENTY PERIOD;;;;
+249C;PARENTHESIZED LATIN SMALL LETTER A;So;0;L;<compat> 0028 0061 0029;;;;N;;;;;
+249D;PARENTHESIZED LATIN SMALL LETTER B;So;0;L;<compat> 0028 0062 0029;;;;N;;;;;
+249E;PARENTHESIZED LATIN SMALL LETTER C;So;0;L;<compat> 0028 0063 0029;;;;N;;;;;
+249F;PARENTHESIZED LATIN SMALL LETTER D;So;0;L;<compat> 0028 0064 0029;;;;N;;;;;
+24A0;PARENTHESIZED LATIN SMALL LETTER E;So;0;L;<compat> 0028 0065 0029;;;;N;;;;;
+24A1;PARENTHESIZED LATIN SMALL LETTER F;So;0;L;<compat> 0028 0066 0029;;;;N;;;;;
+24A2;PARENTHESIZED LATIN SMALL LETTER G;So;0;L;<compat> 0028 0067 0029;;;;N;;;;;
+24A3;PARENTHESIZED LATIN SMALL LETTER H;So;0;L;<compat> 0028 0068 0029;;;;N;;;;;
+24A4;PARENTHESIZED LATIN SMALL LETTER I;So;0;L;<compat> 0028 0069 0029;;;;N;;;;;
+24A5;PARENTHESIZED LATIN SMALL LETTER J;So;0;L;<compat> 0028 006A 0029;;;;N;;;;;
+24A6;PARENTHESIZED LATIN SMALL LETTER K;So;0;L;<compat> 0028 006B 0029;;;;N;;;;;
+24A7;PARENTHESIZED LATIN SMALL LETTER L;So;0;L;<compat> 0028 006C 0029;;;;N;;;;;
+24A8;PARENTHESIZED LATIN SMALL LETTER M;So;0;L;<compat> 0028 006D 0029;;;;N;;;;;
+24A9;PARENTHESIZED LATIN SMALL LETTER N;So;0;L;<compat> 0028 006E 0029;;;;N;;;;;
+24AA;PARENTHESIZED LATIN SMALL LETTER O;So;0;L;<compat> 0028 006F 0029;;;;N;;;;;
+24AB;PARENTHESIZED LATIN SMALL LETTER P;So;0;L;<compat> 0028 0070 0029;;;;N;;;;;
+24AC;PARENTHESIZED LATIN SMALL LETTER Q;So;0;L;<compat> 0028 0071 0029;;;;N;;;;;
+24AD;PARENTHESIZED LATIN SMALL LETTER R;So;0;L;<compat> 0028 0072 0029;;;;N;;;;;
+24AE;PARENTHESIZED LATIN SMALL LETTER S;So;0;L;<compat> 0028 0073 0029;;;;N;;;;;
+24AF;PARENTHESIZED LATIN SMALL LETTER T;So;0;L;<compat> 0028 0074 0029;;;;N;;;;;
+24B0;PARENTHESIZED LATIN SMALL LETTER U;So;0;L;<compat> 0028 0075 0029;;;;N;;;;;
+24B1;PARENTHESIZED LATIN SMALL LETTER V;So;0;L;<compat> 0028 0076 0029;;;;N;;;;;
+24B2;PARENTHESIZED LATIN SMALL LETTER W;So;0;L;<compat> 0028 0077 0029;;;;N;;;;;
+24B3;PARENTHESIZED LATIN SMALL LETTER X;So;0;L;<compat> 0028 0078 0029;;;;N;;;;;
+24B4;PARENTHESIZED LATIN SMALL LETTER Y;So;0;L;<compat> 0028 0079 0029;;;;N;;;;;
+24B5;PARENTHESIZED LATIN SMALL LETTER Z;So;0;L;<compat> 0028 007A 0029;;;;N;;;;;
+24B6;CIRCLED LATIN CAPITAL LETTER A;So;0;L;<circle> 0041;;;;N;;;;24D0;
+24B7;CIRCLED LATIN CAPITAL LETTER B;So;0;L;<circle> 0042;;;;N;;;;24D1;
+24B8;CIRCLED LATIN CAPITAL LETTER C;So;0;L;<circle> 0043;;;;N;;;;24D2;
+24B9;CIRCLED LATIN CAPITAL LETTER D;So;0;L;<circle> 0044;;;;N;;;;24D3;
+24BA;CIRCLED LATIN CAPITAL LETTER E;So;0;L;<circle> 0045;;;;N;;;;24D4;
+24BB;CIRCLED LATIN CAPITAL LETTER F;So;0;L;<circle> 0046;;;;N;;;;24D5;
+24BC;CIRCLED LATIN CAPITAL LETTER G;So;0;L;<circle> 0047;;;;N;;;;24D6;
+24BD;CIRCLED LATIN CAPITAL LETTER H;So;0;L;<circle> 0048;;;;N;;;;24D7;
+24BE;CIRCLED LATIN CAPITAL LETTER I;So;0;L;<circle> 0049;;;;N;;;;24D8;
+24BF;CIRCLED LATIN CAPITAL LETTER J;So;0;L;<circle> 004A;;;;N;;;;24D9;
+24C0;CIRCLED LATIN CAPITAL LETTER K;So;0;L;<circle> 004B;;;;N;;;;24DA;
+24C1;CIRCLED LATIN CAPITAL LETTER L;So;0;L;<circle> 004C;;;;N;;;;24DB;
+24C2;CIRCLED LATIN CAPITAL LETTER M;So;0;L;<circle> 004D;;;;N;;;;24DC;
+24C3;CIRCLED LATIN CAPITAL LETTER N;So;0;L;<circle> 004E;;;;N;;;;24DD;
+24C4;CIRCLED LATIN CAPITAL LETTER O;So;0;L;<circle> 004F;;;;N;;;;24DE;
+24C5;CIRCLED LATIN CAPITAL LETTER P;So;0;L;<circle> 0050;;;;N;;;;24DF;
+24C6;CIRCLED LATIN CAPITAL LETTER Q;So;0;L;<circle> 0051;;;;N;;;;24E0;
+24C7;CIRCLED LATIN CAPITAL LETTER R;So;0;L;<circle> 0052;;;;N;;;;24E1;
+24C8;CIRCLED LATIN CAPITAL LETTER S;So;0;L;<circle> 0053;;;;N;;;;24E2;
+24C9;CIRCLED LATIN CAPITAL LETTER T;So;0;L;<circle> 0054;;;;N;;;;24E3;
+24CA;CIRCLED LATIN CAPITAL LETTER U;So;0;L;<circle> 0055;;;;N;;;;24E4;
+24CB;CIRCLED LATIN CAPITAL LETTER V;So;0;L;<circle> 0056;;;;N;;;;24E5;
+24CC;CIRCLED LATIN CAPITAL LETTER W;So;0;L;<circle> 0057;;;;N;;;;24E6;
+24CD;CIRCLED LATIN CAPITAL LETTER X;So;0;L;<circle> 0058;;;;N;;;;24E7;
+24CE;CIRCLED LATIN CAPITAL LETTER Y;So;0;L;<circle> 0059;;;;N;;;;24E8;
+24CF;CIRCLED LATIN CAPITAL LETTER Z;So;0;L;<circle> 005A;;;;N;;;;24E9;
+24D0;CIRCLED LATIN SMALL LETTER A;So;0;L;<circle> 0061;;;;N;;;24B6;;24B6
+24D1;CIRCLED LATIN SMALL LETTER B;So;0;L;<circle> 0062;;;;N;;;24B7;;24B7
+24D2;CIRCLED LATIN SMALL LETTER C;So;0;L;<circle> 0063;;;;N;;;24B8;;24B8
+24D3;CIRCLED LATIN SMALL LETTER D;So;0;L;<circle> 0064;;;;N;;;24B9;;24B9
+24D4;CIRCLED LATIN SMALL LETTER E;So;0;L;<circle> 0065;;;;N;;;24BA;;24BA
+24D5;CIRCLED LATIN SMALL LETTER F;So;0;L;<circle> 0066;;;;N;;;24BB;;24BB
+24D6;CIRCLED LATIN SMALL LETTER G;So;0;L;<circle> 0067;;;;N;;;24BC;;24BC
+24D7;CIRCLED LATIN SMALL LETTER H;So;0;L;<circle> 0068;;;;N;;;24BD;;24BD
+24D8;CIRCLED LATIN SMALL LETTER I;So;0;L;<circle> 0069;;;;N;;;24BE;;24BE
+24D9;CIRCLED LATIN SMALL LETTER J;So;0;L;<circle> 006A;;;;N;;;24BF;;24BF
+24DA;CIRCLED LATIN SMALL LETTER K;So;0;L;<circle> 006B;;;;N;;;24C0;;24C0
+24DB;CIRCLED LATIN SMALL LETTER L;So;0;L;<circle> 006C;;;;N;;;24C1;;24C1
+24DC;CIRCLED LATIN SMALL LETTER M;So;0;L;<circle> 006D;;;;N;;;24C2;;24C2
+24DD;CIRCLED LATIN SMALL LETTER N;So;0;L;<circle> 006E;;;;N;;;24C3;;24C3
+24DE;CIRCLED LATIN SMALL LETTER O;So;0;L;<circle> 006F;;;;N;;;24C4;;24C4
+24DF;CIRCLED LATIN SMALL LETTER P;So;0;L;<circle> 0070;;;;N;;;24C5;;24C5
+24E0;CIRCLED LATIN SMALL LETTER Q;So;0;L;<circle> 0071;;;;N;;;24C6;;24C6
+24E1;CIRCLED LATIN SMALL LETTER R;So;0;L;<circle> 0072;;;;N;;;24C7;;24C7
+24E2;CIRCLED LATIN SMALL LETTER S;So;0;L;<circle> 0073;;;;N;;;24C8;;24C8
+24E3;CIRCLED LATIN SMALL LETTER T;So;0;L;<circle> 0074;;;;N;;;24C9;;24C9
+24E4;CIRCLED LATIN SMALL LETTER U;So;0;L;<circle> 0075;;;;N;;;24CA;;24CA
+24E5;CIRCLED LATIN SMALL LETTER V;So;0;L;<circle> 0076;;;;N;;;24CB;;24CB
+24E6;CIRCLED LATIN SMALL LETTER W;So;0;L;<circle> 0077;;;;N;;;24CC;;24CC
+24E7;CIRCLED LATIN SMALL LETTER X;So;0;L;<circle> 0078;;;;N;;;24CD;;24CD
+24E8;CIRCLED LATIN SMALL LETTER Y;So;0;L;<circle> 0079;;;;N;;;24CE;;24CE
+24E9;CIRCLED LATIN SMALL LETTER Z;So;0;L;<circle> 007A;;;;N;;;24CF;;24CF
+24EA;CIRCLED DIGIT ZERO;No;0;ON;<circle> 0030;;0;0;N;;;;;
+24EB;NEGATIVE CIRCLED NUMBER ELEVEN;No;0;ON;;;;11;N;;;;;
+24EC;NEGATIVE CIRCLED NUMBER TWELVE;No;0;ON;;;;12;N;;;;;
+24ED;NEGATIVE CIRCLED NUMBER THIRTEEN;No;0;ON;;;;13;N;;;;;
+24EE;NEGATIVE CIRCLED NUMBER FOURTEEN;No;0;ON;;;;14;N;;;;;
+24EF;NEGATIVE CIRCLED NUMBER FIFTEEN;No;0;ON;;;;15;N;;;;;
+24F0;NEGATIVE CIRCLED NUMBER SIXTEEN;No;0;ON;;;;16;N;;;;;
+24F1;NEGATIVE CIRCLED NUMBER SEVENTEEN;No;0;ON;;;;17;N;;;;;
+24F2;NEGATIVE CIRCLED NUMBER EIGHTEEN;No;0;ON;;;;18;N;;;;;
+24F3;NEGATIVE CIRCLED NUMBER NINETEEN;No;0;ON;;;;19;N;;;;;
+24F4;NEGATIVE CIRCLED NUMBER TWENTY;No;0;ON;;;;20;N;;;;;
+24F5;DOUBLE CIRCLED DIGIT ONE;No;0;ON;;;1;1;N;;;;;
+24F6;DOUBLE CIRCLED DIGIT TWO;No;0;ON;;;2;2;N;;;;;
+24F7;DOUBLE CIRCLED DIGIT THREE;No;0;ON;;;3;3;N;;;;;
+24F8;DOUBLE CIRCLED DIGIT FOUR;No;0;ON;;;4;4;N;;;;;
+24F9;DOUBLE CIRCLED DIGIT FIVE;No;0;ON;;;5;5;N;;;;;
+24FA;DOUBLE CIRCLED DIGIT SIX;No;0;ON;;;6;6;N;;;;;
+24FB;DOUBLE CIRCLED DIGIT SEVEN;No;0;ON;;;7;7;N;;;;;
+24FC;DOUBLE CIRCLED DIGIT EIGHT;No;0;ON;;;8;8;N;;;;;
+24FD;DOUBLE CIRCLED DIGIT NINE;No;0;ON;;;9;9;N;;;;;
+24FE;DOUBLE CIRCLED NUMBER TEN;No;0;ON;;;;10;N;;;;;
+24FF;NEGATIVE CIRCLED DIGIT ZERO;No;0;ON;;;0;0;N;;;;;
+2500;BOX DRAWINGS LIGHT HORIZONTAL;So;0;ON;;;;;N;FORMS LIGHT HORIZONTAL;;;;
+2501;BOX DRAWINGS HEAVY HORIZONTAL;So;0;ON;;;;;N;FORMS HEAVY HORIZONTAL;;;;
+2502;BOX DRAWINGS LIGHT VERTICAL;So;0;ON;;;;;N;FORMS LIGHT VERTICAL;;;;
+2503;BOX DRAWINGS HEAVY VERTICAL;So;0;ON;;;;;N;FORMS HEAVY VERTICAL;;;;
+2504;BOX DRAWINGS LIGHT TRIPLE DASH HORIZONTAL;So;0;ON;;;;;N;FORMS LIGHT TRIPLE DASH HORIZONTAL;;;;
+2505;BOX DRAWINGS HEAVY TRIPLE DASH HORIZONTAL;So;0;ON;;;;;N;FORMS HEAVY TRIPLE DASH HORIZONTAL;;;;
+2506;BOX DRAWINGS LIGHT TRIPLE DASH VERTICAL;So;0;ON;;;;;N;FORMS LIGHT TRIPLE DASH VERTICAL;;;;
+2507;BOX DRAWINGS HEAVY TRIPLE DASH VERTICAL;So;0;ON;;;;;N;FORMS HEAVY TRIPLE DASH VERTICAL;;;;
+2508;BOX DRAWINGS LIGHT QUADRUPLE DASH HORIZONTAL;So;0;ON;;;;;N;FORMS LIGHT QUADRUPLE DASH HORIZONTAL;;;;
+2509;BOX DRAWINGS HEAVY QUADRUPLE DASH HORIZONTAL;So;0;ON;;;;;N;FORMS HEAVY QUADRUPLE DASH HORIZONTAL;;;;
+250A;BOX DRAWINGS LIGHT QUADRUPLE DASH VERTICAL;So;0;ON;;;;;N;FORMS LIGHT QUADRUPLE DASH VERTICAL;;;;
+250B;BOX DRAWINGS HEAVY QUADRUPLE DASH VERTICAL;So;0;ON;;;;;N;FORMS HEAVY QUADRUPLE DASH VERTICAL;;;;
+250C;BOX DRAWINGS LIGHT DOWN AND RIGHT;So;0;ON;;;;;N;FORMS LIGHT DOWN AND RIGHT;;;;
+250D;BOX DRAWINGS DOWN LIGHT AND RIGHT HEAVY;So;0;ON;;;;;N;FORMS DOWN LIGHT AND RIGHT HEAVY;;;;
+250E;BOX DRAWINGS DOWN HEAVY AND RIGHT LIGHT;So;0;ON;;;;;N;FORMS DOWN HEAVY AND RIGHT LIGHT;;;;
+250F;BOX DRAWINGS HEAVY DOWN AND RIGHT;So;0;ON;;;;;N;FORMS HEAVY DOWN AND RIGHT;;;;
+2510;BOX DRAWINGS LIGHT DOWN AND LEFT;So;0;ON;;;;;N;FORMS LIGHT DOWN AND LEFT;;;;
+2511;BOX DRAWINGS DOWN LIGHT AND LEFT HEAVY;So;0;ON;;;;;N;FORMS DOWN LIGHT AND LEFT HEAVY;;;;
+2512;BOX DRAWINGS DOWN HEAVY AND LEFT LIGHT;So;0;ON;;;;;N;FORMS DOWN HEAVY AND LEFT LIGHT;;;;
+2513;BOX DRAWINGS HEAVY DOWN AND LEFT;So;0;ON;;;;;N;FORMS HEAVY DOWN AND LEFT;;;;
+2514;BOX DRAWINGS LIGHT UP AND RIGHT;So;0;ON;;;;;N;FORMS LIGHT UP AND RIGHT;;;;
+2515;BOX DRAWINGS UP LIGHT AND RIGHT HEAVY;So;0;ON;;;;;N;FORMS UP LIGHT AND RIGHT HEAVY;;;;
+2516;BOX DRAWINGS UP HEAVY AND RIGHT LIGHT;So;0;ON;;;;;N;FORMS UP HEAVY AND RIGHT LIGHT;;;;
+2517;BOX DRAWINGS HEAVY UP AND RIGHT;So;0;ON;;;;;N;FORMS HEAVY UP AND RIGHT;;;;
+2518;BOX DRAWINGS LIGHT UP AND LEFT;So;0;ON;;;;;N;FORMS LIGHT UP AND LEFT;;;;
+2519;BOX DRAWINGS UP LIGHT AND LEFT HEAVY;So;0;ON;;;;;N;FORMS UP LIGHT AND LEFT HEAVY;;;;
+251A;BOX DRAWINGS UP HEAVY AND LEFT LIGHT;So;0;ON;;;;;N;FORMS UP HEAVY AND LEFT LIGHT;;;;
+251B;BOX DRAWINGS HEAVY UP AND LEFT;So;0;ON;;;;;N;FORMS HEAVY UP AND LEFT;;;;
+251C;BOX DRAWINGS LIGHT VERTICAL AND RIGHT;So;0;ON;;;;;N;FORMS LIGHT VERTICAL AND RIGHT;;;;
+251D;BOX DRAWINGS VERTICAL LIGHT AND RIGHT HEAVY;So;0;ON;;;;;N;FORMS VERTICAL LIGHT AND RIGHT HEAVY;;;;
+251E;BOX DRAWINGS UP HEAVY AND RIGHT DOWN LIGHT;So;0;ON;;;;;N;FORMS UP HEAVY AND RIGHT DOWN LIGHT;;;;
+251F;BOX DRAWINGS DOWN HEAVY AND RIGHT UP LIGHT;So;0;ON;;;;;N;FORMS DOWN HEAVY AND RIGHT UP LIGHT;;;;
+2520;BOX DRAWINGS VERTICAL HEAVY AND RIGHT LIGHT;So;0;ON;;;;;N;FORMS VERTICAL HEAVY AND RIGHT LIGHT;;;;
+2521;BOX DRAWINGS DOWN LIGHT AND RIGHT UP HEAVY;So;0;ON;;;;;N;FORMS DOWN LIGHT AND RIGHT UP HEAVY;;;;
+2522;BOX DRAWINGS UP LIGHT AND RIGHT DOWN HEAVY;So;0;ON;;;;;N;FORMS UP LIGHT AND RIGHT DOWN HEAVY;;;;
+2523;BOX DRAWINGS HEAVY VERTICAL AND RIGHT;So;0;ON;;;;;N;FORMS HEAVY VERTICAL AND RIGHT;;;;
+2524;BOX DRAWINGS LIGHT VERTICAL AND LEFT;So;0;ON;;;;;N;FORMS LIGHT VERTICAL AND LEFT;;;;
+2525;BOX DRAWINGS VERTICAL LIGHT AND LEFT HEAVY;So;0;ON;;;;;N;FORMS VERTICAL LIGHT AND LEFT HEAVY;;;;
+2526;BOX DRAWINGS UP HEAVY AND LEFT DOWN LIGHT;So;0;ON;;;;;N;FORMS UP HEAVY AND LEFT DOWN LIGHT;;;;
+2527;BOX DRAWINGS DOWN HEAVY AND LEFT UP LIGHT;So;0;ON;;;;;N;FORMS DOWN HEAVY AND LEFT UP LIGHT;;;;
+2528;BOX DRAWINGS VERTICAL HEAVY AND LEFT LIGHT;So;0;ON;;;;;N;FORMS VERTICAL HEAVY AND LEFT LIGHT;;;;
+2529;BOX DRAWINGS DOWN LIGHT AND LEFT UP HEAVY;So;0;ON;;;;;N;FORMS DOWN LIGHT AND LEFT UP HEAVY;;;;
+252A;BOX DRAWINGS UP LIGHT AND LEFT DOWN HEAVY;So;0;ON;;;;;N;FORMS UP LIGHT AND LEFT DOWN HEAVY;;;;
+252B;BOX DRAWINGS HEAVY VERTICAL AND LEFT;So;0;ON;;;;;N;FORMS HEAVY VERTICAL AND LEFT;;;;
+252C;BOX DRAWINGS LIGHT DOWN AND HORIZONTAL;So;0;ON;;;;;N;FORMS LIGHT DOWN AND HORIZONTAL;;;;
+252D;BOX DRAWINGS LEFT HEAVY AND RIGHT DOWN LIGHT;So;0;ON;;;;;N;FORMS LEFT HEAVY AND RIGHT DOWN LIGHT;;;;
+252E;BOX DRAWINGS RIGHT HEAVY AND LEFT DOWN LIGHT;So;0;ON;;;;;N;FORMS RIGHT HEAVY AND LEFT DOWN LIGHT;;;;
+252F;BOX DRAWINGS DOWN LIGHT AND HORIZONTAL HEAVY;So;0;ON;;;;;N;FORMS DOWN LIGHT AND HORIZONTAL HEAVY;;;;
+2530;BOX DRAWINGS DOWN HEAVY AND HORIZONTAL LIGHT;So;0;ON;;;;;N;FORMS DOWN HEAVY AND HORIZONTAL LIGHT;;;;
+2531;BOX DRAWINGS RIGHT LIGHT AND LEFT DOWN HEAVY;So;0;ON;;;;;N;FORMS RIGHT LIGHT AND LEFT DOWN HEAVY;;;;
+2532;BOX DRAWINGS LEFT LIGHT AND RIGHT DOWN HEAVY;So;0;ON;;;;;N;FORMS LEFT LIGHT AND RIGHT DOWN HEAVY;;;;
+2533;BOX DRAWINGS HEAVY DOWN AND HORIZONTAL;So;0;ON;;;;;N;FORMS HEAVY DOWN AND HORIZONTAL;;;;
+2534;BOX DRAWINGS LIGHT UP AND HORIZONTAL;So;0;ON;;;;;N;FORMS LIGHT UP AND HORIZONTAL;;;;
+2535;BOX DRAWINGS LEFT HEAVY AND RIGHT UP LIGHT;So;0;ON;;;;;N;FORMS LEFT HEAVY AND RIGHT UP LIGHT;;;;
+2536;BOX DRAWINGS RIGHT HEAVY AND LEFT UP LIGHT;So;0;ON;;;;;N;FORMS RIGHT HEAVY AND LEFT UP LIGHT;;;;
+2537;BOX DRAWINGS UP LIGHT AND HORIZONTAL HEAVY;So;0;ON;;;;;N;FORMS UP LIGHT AND HORIZONTAL HEAVY;;;;
+2538;BOX DRAWINGS UP HEAVY AND HORIZONTAL LIGHT;So;0;ON;;;;;N;FORMS UP HEAVY AND HORIZONTAL LIGHT;;;;
+2539;BOX DRAWINGS RIGHT LIGHT AND LEFT UP HEAVY;So;0;ON;;;;;N;FORMS RIGHT LIGHT AND LEFT UP HEAVY;;;;
+253A;BOX DRAWINGS LEFT LIGHT AND RIGHT UP HEAVY;So;0;ON;;;;;N;FORMS LEFT LIGHT AND RIGHT UP HEAVY;;;;
+253B;BOX DRAWINGS HEAVY UP AND HORIZONTAL;So;0;ON;;;;;N;FORMS HEAVY UP AND HORIZONTAL;;;;
+253C;BOX DRAWINGS LIGHT VERTICAL AND HORIZONTAL;So;0;ON;;;;;N;FORMS LIGHT VERTICAL AND HORIZONTAL;;;;
+253D;BOX DRAWINGS LEFT HEAVY AND RIGHT VERTICAL LIGHT;So;0;ON;;;;;N;FORMS LEFT HEAVY AND RIGHT VERTICAL LIGHT;;;;
+253E;BOX DRAWINGS RIGHT HEAVY AND LEFT VERTICAL LIGHT;So;0;ON;;;;;N;FORMS RIGHT HEAVY AND LEFT VERTICAL LIGHT;;;;
+253F;BOX DRAWINGS VERTICAL LIGHT AND HORIZONTAL HEAVY;So;0;ON;;;;;N;FORMS VERTICAL LIGHT AND HORIZONTAL HEAVY;;;;
+2540;BOX DRAWINGS UP HEAVY AND DOWN HORIZONTAL LIGHT;So;0;ON;;;;;N;FORMS UP HEAVY AND DOWN HORIZONTAL LIGHT;;;;
+2541;BOX DRAWINGS DOWN HEAVY AND UP HORIZONTAL LIGHT;So;0;ON;;;;;N;FORMS DOWN HEAVY AND UP HORIZONTAL LIGHT;;;;
+2542;BOX DRAWINGS VERTICAL HEAVY AND HORIZONTAL LIGHT;So;0;ON;;;;;N;FORMS VERTICAL HEAVY AND HORIZONTAL LIGHT;;;;
+2543;BOX DRAWINGS LEFT UP HEAVY AND RIGHT DOWN LIGHT;So;0;ON;;;;;N;FORMS LEFT UP HEAVY AND RIGHT DOWN LIGHT;;;;
+2544;BOX DRAWINGS RIGHT UP HEAVY AND LEFT DOWN LIGHT;So;0;ON;;;;;N;FORMS RIGHT UP HEAVY AND LEFT DOWN LIGHT;;;;
+2545;BOX DRAWINGS LEFT DOWN HEAVY AND RIGHT UP LIGHT;So;0;ON;;;;;N;FORMS LEFT DOWN HEAVY AND RIGHT UP LIGHT;;;;
+2546;BOX DRAWINGS RIGHT DOWN HEAVY AND LEFT UP LIGHT;So;0;ON;;;;;N;FORMS RIGHT DOWN HEAVY AND LEFT UP LIGHT;;;;
+2547;BOX DRAWINGS DOWN LIGHT AND UP HORIZONTAL HEAVY;So;0;ON;;;;;N;FORMS DOWN LIGHT AND UP HORIZONTAL HEAVY;;;;
+2548;BOX DRAWINGS UP LIGHT AND DOWN HORIZONTAL HEAVY;So;0;ON;;;;;N;FORMS UP LIGHT AND DOWN HORIZONTAL HEAVY;;;;
+2549;BOX DRAWINGS RIGHT LIGHT AND LEFT VERTICAL HEAVY;So;0;ON;;;;;N;FORMS RIGHT LIGHT AND LEFT VERTICAL HEAVY;;;;
+254A;BOX DRAWINGS LEFT LIGHT AND RIGHT VERTICAL HEAVY;So;0;ON;;;;;N;FORMS LEFT LIGHT AND RIGHT VERTICAL HEAVY;;;;
+254B;BOX DRAWINGS HEAVY VERTICAL AND HORIZONTAL;So;0;ON;;;;;N;FORMS HEAVY VERTICAL AND HORIZONTAL;;;;
+254C;BOX DRAWINGS LIGHT DOUBLE DASH HORIZONTAL;So;0;ON;;;;;N;FORMS LIGHT DOUBLE DASH HORIZONTAL;;;;
+254D;BOX DRAWINGS HEAVY DOUBLE DASH HORIZONTAL;So;0;ON;;;;;N;FORMS HEAVY DOUBLE DASH HORIZONTAL;;;;
+254E;BOX DRAWINGS LIGHT DOUBLE DASH VERTICAL;So;0;ON;;;;;N;FORMS LIGHT DOUBLE DASH VERTICAL;;;;
+254F;BOX DRAWINGS HEAVY DOUBLE DASH VERTICAL;So;0;ON;;;;;N;FORMS HEAVY DOUBLE DASH VERTICAL;;;;
+2550;BOX DRAWINGS DOUBLE HORIZONTAL;So;0;ON;;;;;N;FORMS DOUBLE HORIZONTAL;;;;
+2551;BOX DRAWINGS DOUBLE VERTICAL;So;0;ON;;;;;N;FORMS DOUBLE VERTICAL;;;;
+2552;BOX DRAWINGS DOWN SINGLE AND RIGHT DOUBLE;So;0;ON;;;;;N;FORMS DOWN SINGLE AND RIGHT DOUBLE;;;;
+2553;BOX DRAWINGS DOWN DOUBLE AND RIGHT SINGLE;So;0;ON;;;;;N;FORMS DOWN DOUBLE AND RIGHT SINGLE;;;;
+2554;BOX DRAWINGS DOUBLE DOWN AND RIGHT;So;0;ON;;;;;N;FORMS DOUBLE DOWN AND RIGHT;;;;
+2555;BOX DRAWINGS DOWN SINGLE AND LEFT DOUBLE;So;0;ON;;;;;N;FORMS DOWN SINGLE AND LEFT DOUBLE;;;;
+2556;BOX DRAWINGS DOWN DOUBLE AND LEFT SINGLE;So;0;ON;;;;;N;FORMS DOWN DOUBLE AND LEFT SINGLE;;;;
+2557;BOX DRAWINGS DOUBLE DOWN AND LEFT;So;0;ON;;;;;N;FORMS DOUBLE DOWN AND LEFT;;;;
+2558;BOX DRAWINGS UP SINGLE AND RIGHT DOUBLE;So;0;ON;;;;;N;FORMS UP SINGLE AND RIGHT DOUBLE;;;;
+2559;BOX DRAWINGS UP DOUBLE AND RIGHT SINGLE;So;0;ON;;;;;N;FORMS UP DOUBLE AND RIGHT SINGLE;;;;
+255A;BOX DRAWINGS DOUBLE UP AND RIGHT;So;0;ON;;;;;N;FORMS DOUBLE UP AND RIGHT;;;;
+255B;BOX DRAWINGS UP SINGLE AND LEFT DOUBLE;So;0;ON;;;;;N;FORMS UP SINGLE AND LEFT DOUBLE;;;;
+255C;BOX DRAWINGS UP DOUBLE AND LEFT SINGLE;So;0;ON;;;;;N;FORMS UP DOUBLE AND LEFT SINGLE;;;;
+255D;BOX DRAWINGS DOUBLE UP AND LEFT;So;0;ON;;;;;N;FORMS DOUBLE UP AND LEFT;;;;
+255E;BOX DRAWINGS VERTICAL SINGLE AND RIGHT DOUBLE;So;0;ON;;;;;N;FORMS VERTICAL SINGLE AND RIGHT DOUBLE;;;;
+255F;BOX DRAWINGS VERTICAL DOUBLE AND RIGHT SINGLE;So;0;ON;;;;;N;FORMS VERTICAL DOUBLE AND RIGHT SINGLE;;;;
+2560;BOX DRAWINGS DOUBLE VERTICAL AND RIGHT;So;0;ON;;;;;N;FORMS DOUBLE VERTICAL AND RIGHT;;;;
+2561;BOX DRAWINGS VERTICAL SINGLE AND LEFT DOUBLE;So;0;ON;;;;;N;FORMS VERTICAL SINGLE AND LEFT DOUBLE;;;;
+2562;BOX DRAWINGS VERTICAL DOUBLE AND LEFT SINGLE;So;0;ON;;;;;N;FORMS VERTICAL DOUBLE AND LEFT SINGLE;;;;
+2563;BOX DRAWINGS DOUBLE VERTICAL AND LEFT;So;0;ON;;;;;N;FORMS DOUBLE VERTICAL AND LEFT;;;;
+2564;BOX DRAWINGS DOWN SINGLE AND HORIZONTAL DOUBLE;So;0;ON;;;;;N;FORMS DOWN SINGLE AND HORIZONTAL DOUBLE;;;;
+2565;BOX DRAWINGS DOWN DOUBLE AND HORIZONTAL SINGLE;So;0;ON;;;;;N;FORMS DOWN DOUBLE AND HORIZONTAL SINGLE;;;;
+2566;BOX DRAWINGS DOUBLE DOWN AND HORIZONTAL;So;0;ON;;;;;N;FORMS DOUBLE DOWN AND HORIZONTAL;;;;
+2567;BOX DRAWINGS UP SINGLE AND HORIZONTAL DOUBLE;So;0;ON;;;;;N;FORMS UP SINGLE AND HORIZONTAL DOUBLE;;;;
+2568;BOX DRAWINGS UP DOUBLE AND HORIZONTAL SINGLE;So;0;ON;;;;;N;FORMS UP DOUBLE AND HORIZONTAL SINGLE;;;;
+2569;BOX DRAWINGS DOUBLE UP AND HORIZONTAL;So;0;ON;;;;;N;FORMS DOUBLE UP AND HORIZONTAL;;;;
+256A;BOX DRAWINGS VERTICAL SINGLE AND HORIZONTAL DOUBLE;So;0;ON;;;;;N;FORMS VERTICAL SINGLE AND HORIZONTAL DOUBLE;;;;
+256B;BOX DRAWINGS VERTICAL DOUBLE AND HORIZONTAL SINGLE;So;0;ON;;;;;N;FORMS VERTICAL DOUBLE AND HORIZONTAL SINGLE;;;;
+256C;BOX DRAWINGS DOUBLE VERTICAL AND HORIZONTAL;So;0;ON;;;;;N;FORMS DOUBLE VERTICAL AND HORIZONTAL;;;;
+256D;BOX DRAWINGS LIGHT ARC DOWN AND RIGHT;So;0;ON;;;;;N;FORMS LIGHT ARC DOWN AND RIGHT;;;;
+256E;BOX DRAWINGS LIGHT ARC DOWN AND LEFT;So;0;ON;;;;;N;FORMS LIGHT ARC DOWN AND LEFT;;;;
+256F;BOX DRAWINGS LIGHT ARC UP AND LEFT;So;0;ON;;;;;N;FORMS LIGHT ARC UP AND LEFT;;;;
+2570;BOX DRAWINGS LIGHT ARC UP AND RIGHT;So;0;ON;;;;;N;FORMS LIGHT ARC UP AND RIGHT;;;;
+2571;BOX DRAWINGS LIGHT DIAGONAL UPPER RIGHT TO LOWER LEFT;So;0;ON;;;;;N;FORMS LIGHT DIAGONAL UPPER RIGHT TO LOWER LEFT;;;;
+2572;BOX DRAWINGS LIGHT DIAGONAL UPPER LEFT TO LOWER RIGHT;So;0;ON;;;;;N;FORMS LIGHT DIAGONAL UPPER LEFT TO LOWER RIGHT;;;;
+2573;BOX DRAWINGS LIGHT DIAGONAL CROSS;So;0;ON;;;;;N;FORMS LIGHT DIAGONAL CROSS;;;;
+2574;BOX DRAWINGS LIGHT LEFT;So;0;ON;;;;;N;FORMS LIGHT LEFT;;;;
+2575;BOX DRAWINGS LIGHT UP;So;0;ON;;;;;N;FORMS LIGHT UP;;;;
+2576;BOX DRAWINGS LIGHT RIGHT;So;0;ON;;;;;N;FORMS LIGHT RIGHT;;;;
+2577;BOX DRAWINGS LIGHT DOWN;So;0;ON;;;;;N;FORMS LIGHT DOWN;;;;
+2578;BOX DRAWINGS HEAVY LEFT;So;0;ON;;;;;N;FORMS HEAVY LEFT;;;;
+2579;BOX DRAWINGS HEAVY UP;So;0;ON;;;;;N;FORMS HEAVY UP;;;;
+257A;BOX DRAWINGS HEAVY RIGHT;So;0;ON;;;;;N;FORMS HEAVY RIGHT;;;;
+257B;BOX DRAWINGS HEAVY DOWN;So;0;ON;;;;;N;FORMS HEAVY DOWN;;;;
+257C;BOX DRAWINGS LIGHT LEFT AND HEAVY RIGHT;So;0;ON;;;;;N;FORMS LIGHT LEFT AND HEAVY RIGHT;;;;
+257D;BOX DRAWINGS LIGHT UP AND HEAVY DOWN;So;0;ON;;;;;N;FORMS LIGHT UP AND HEAVY DOWN;;;;
+257E;BOX DRAWINGS HEAVY LEFT AND LIGHT RIGHT;So;0;ON;;;;;N;FORMS HEAVY LEFT AND LIGHT RIGHT;;;;
+257F;BOX DRAWINGS HEAVY UP AND LIGHT DOWN;So;0;ON;;;;;N;FORMS HEAVY UP AND LIGHT DOWN;;;;
+2580;UPPER HALF BLOCK;So;0;ON;;;;;N;;;;;
+2581;LOWER ONE EIGHTH BLOCK;So;0;ON;;;;;N;;;;;
+2582;LOWER ONE QUARTER BLOCK;So;0;ON;;;;;N;;;;;
+2583;LOWER THREE EIGHTHS BLOCK;So;0;ON;;;;;N;;;;;
+2584;LOWER HALF BLOCK;So;0;ON;;;;;N;;;;;
+2585;LOWER FIVE EIGHTHS BLOCK;So;0;ON;;;;;N;;;;;
+2586;LOWER THREE QUARTERS BLOCK;So;0;ON;;;;;N;LOWER THREE QUARTER BLOCK;;;;
+2587;LOWER SEVEN EIGHTHS BLOCK;So;0;ON;;;;;N;;;;;
+2588;FULL BLOCK;So;0;ON;;;;;N;;;;;
+2589;LEFT SEVEN EIGHTHS BLOCK;So;0;ON;;;;;N;;;;;
+258A;LEFT THREE QUARTERS BLOCK;So;0;ON;;;;;N;LEFT THREE QUARTER BLOCK;;;;
+258B;LEFT FIVE EIGHTHS BLOCK;So;0;ON;;;;;N;;;;;
+258C;LEFT HALF BLOCK;So;0;ON;;;;;N;;;;;
+258D;LEFT THREE EIGHTHS BLOCK;So;0;ON;;;;;N;;;;;
+258E;LEFT ONE QUARTER BLOCK;So;0;ON;;;;;N;;;;;
+258F;LEFT ONE EIGHTH BLOCK;So;0;ON;;;;;N;;;;;
+2590;RIGHT HALF BLOCK;So;0;ON;;;;;N;;;;;
+2591;LIGHT SHADE;So;0;ON;;;;;N;;;;;
+2592;MEDIUM SHADE;So;0;ON;;;;;N;;;;;
+2593;DARK SHADE;So;0;ON;;;;;N;;;;;
+2594;UPPER ONE EIGHTH BLOCK;So;0;ON;;;;;N;;;;;
+2595;RIGHT ONE EIGHTH BLOCK;So;0;ON;;;;;N;;;;;
+2596;QUADRANT LOWER LEFT;So;0;ON;;;;;N;;;;;
+2597;QUADRANT LOWER RIGHT;So;0;ON;;;;;N;;;;;
+2598;QUADRANT UPPER LEFT;So;0;ON;;;;;N;;;;;
+2599;QUADRANT UPPER LEFT AND LOWER LEFT AND LOWER RIGHT;So;0;ON;;;;;N;;;;;
+259A;QUADRANT UPPER LEFT AND LOWER RIGHT;So;0;ON;;;;;N;;;;;
+259B;QUADRANT UPPER LEFT AND UPPER RIGHT AND LOWER LEFT;So;0;ON;;;;;N;;;;;
+259C;QUADRANT UPPER LEFT AND UPPER RIGHT AND LOWER RIGHT;So;0;ON;;;;;N;;;;;
+259D;QUADRANT UPPER RIGHT;So;0;ON;;;;;N;;;;;
+259E;QUADRANT UPPER RIGHT AND LOWER LEFT;So;0;ON;;;;;N;;;;;
+259F;QUADRANT UPPER RIGHT AND LOWER LEFT AND LOWER RIGHT;So;0;ON;;;;;N;;;;;
+25A0;BLACK SQUARE;So;0;ON;;;;;N;;;;;
+25A1;WHITE SQUARE;So;0;ON;;;;;N;;;;;
+25A2;WHITE SQUARE WITH ROUNDED CORNERS;So;0;ON;;;;;N;;;;;
+25A3;WHITE SQUARE CONTAINING BLACK SMALL SQUARE;So;0;ON;;;;;N;;;;;
+25A4;SQUARE WITH HORIZONTAL FILL;So;0;ON;;;;;N;;;;;
+25A5;SQUARE WITH VERTICAL FILL;So;0;ON;;;;;N;;;;;
+25A6;SQUARE WITH ORTHOGONAL CROSSHATCH FILL;So;0;ON;;;;;N;;;;;
+25A7;SQUARE WITH UPPER LEFT TO LOWER RIGHT FILL;So;0;ON;;;;;N;;;;;
+25A8;SQUARE WITH UPPER RIGHT TO LOWER LEFT FILL;So;0;ON;;;;;N;;;;;
+25A9;SQUARE WITH DIAGONAL CROSSHATCH FILL;So;0;ON;;;;;N;;;;;
+25AA;BLACK SMALL SQUARE;So;0;ON;;;;;N;;;;;
+25AB;WHITE SMALL SQUARE;So;0;ON;;;;;N;;;;;
+25AC;BLACK RECTANGLE;So;0;ON;;;;;N;;;;;
+25AD;WHITE RECTANGLE;So;0;ON;;;;;N;;;;;
+25AE;BLACK VERTICAL RECTANGLE;So;0;ON;;;;;N;;;;;
+25AF;WHITE VERTICAL RECTANGLE;So;0;ON;;;;;N;;;;;
+25B0;BLACK PARALLELOGRAM;So;0;ON;;;;;N;;;;;
+25B1;WHITE PARALLELOGRAM;So;0;ON;;;;;N;;;;;
+25B2;BLACK UP-POINTING TRIANGLE;So;0;ON;;;;;N;BLACK UP POINTING TRIANGLE;;;;
+25B3;WHITE UP-POINTING TRIANGLE;So;0;ON;;;;;N;WHITE UP POINTING TRIANGLE;;;;
+25B4;BLACK UP-POINTING SMALL TRIANGLE;So;0;ON;;;;;N;BLACK UP POINTING SMALL TRIANGLE;;;;
+25B5;WHITE UP-POINTING SMALL TRIANGLE;So;0;ON;;;;;N;WHITE UP POINTING SMALL TRIANGLE;;;;
+25B6;BLACK RIGHT-POINTING TRIANGLE;So;0;ON;;;;;N;BLACK RIGHT POINTING TRIANGLE;;;;
+25B7;WHITE RIGHT-POINTING TRIANGLE;Sm;0;ON;;;;;N;WHITE RIGHT POINTING TRIANGLE;;;;
+25B8;BLACK RIGHT-POINTING SMALL TRIANGLE;So;0;ON;;;;;N;BLACK RIGHT POINTING SMALL TRIANGLE;;;;
+25B9;WHITE RIGHT-POINTING SMALL TRIANGLE;So;0;ON;;;;;N;WHITE RIGHT POINTING SMALL TRIANGLE;;;;
+25BA;BLACK RIGHT-POINTING POINTER;So;0;ON;;;;;N;BLACK RIGHT POINTING POINTER;;;;
+25BB;WHITE RIGHT-POINTING POINTER;So;0;ON;;;;;N;WHITE RIGHT POINTING POINTER;;;;
+25BC;BLACK DOWN-POINTING TRIANGLE;So;0;ON;;;;;N;BLACK DOWN POINTING TRIANGLE;;;;
+25BD;WHITE DOWN-POINTING TRIANGLE;So;0;ON;;;;;N;WHITE DOWN POINTING TRIANGLE;;;;
+25BE;BLACK DOWN-POINTING SMALL TRIANGLE;So;0;ON;;;;;N;BLACK DOWN POINTING SMALL TRIANGLE;;;;
+25BF;WHITE DOWN-POINTING SMALL TRIANGLE;So;0;ON;;;;;N;WHITE DOWN POINTING SMALL TRIANGLE;;;;
+25C0;BLACK LEFT-POINTING TRIANGLE;So;0;ON;;;;;N;BLACK LEFT POINTING TRIANGLE;;;;
+25C1;WHITE LEFT-POINTING TRIANGLE;Sm;0;ON;;;;;N;WHITE LEFT POINTING TRIANGLE;;;;
+25C2;BLACK LEFT-POINTING SMALL TRIANGLE;So;0;ON;;;;;N;BLACK LEFT POINTING SMALL TRIANGLE;;;;
+25C3;WHITE LEFT-POINTING SMALL TRIANGLE;So;0;ON;;;;;N;WHITE LEFT POINTING SMALL TRIANGLE;;;;
+25C4;BLACK LEFT-POINTING POINTER;So;0;ON;;;;;N;BLACK LEFT POINTING POINTER;;;;
+25C5;WHITE LEFT-POINTING POINTER;So;0;ON;;;;;N;WHITE LEFT POINTING POINTER;;;;
+25C6;BLACK DIAMOND;So;0;ON;;;;;N;;;;;
+25C7;WHITE DIAMOND;So;0;ON;;;;;N;;;;;
+25C8;WHITE DIAMOND CONTAINING BLACK SMALL DIAMOND;So;0;ON;;;;;N;;;;;
+25C9;FISHEYE;So;0;ON;;;;;N;;;;;
+25CA;LOZENGE;So;0;ON;;;;;N;;;;;
+25CB;WHITE CIRCLE;So;0;ON;;;;;N;;;;;
+25CC;DOTTED CIRCLE;So;0;ON;;;;;N;;;;;
+25CD;CIRCLE WITH VERTICAL FILL;So;0;ON;;;;;N;;;;;
+25CE;BULLSEYE;So;0;ON;;;;;N;;;;;
+25CF;BLACK CIRCLE;So;0;ON;;;;;N;;;;;
+25D0;CIRCLE WITH LEFT HALF BLACK;So;0;ON;;;;;N;;;;;
+25D1;CIRCLE WITH RIGHT HALF BLACK;So;0;ON;;;;;N;;;;;
+25D2;CIRCLE WITH LOWER HALF BLACK;So;0;ON;;;;;N;;;;;
+25D3;CIRCLE WITH UPPER HALF BLACK;So;0;ON;;;;;N;;;;;
+25D4;CIRCLE WITH UPPER RIGHT QUADRANT BLACK;So;0;ON;;;;;N;;;;;
+25D5;CIRCLE WITH ALL BUT UPPER LEFT QUADRANT BLACK;So;0;ON;;;;;N;;;;;
+25D6;LEFT HALF BLACK CIRCLE;So;0;ON;;;;;N;;;;;
+25D7;RIGHT HALF BLACK CIRCLE;So;0;ON;;;;;N;;;;;
+25D8;INVERSE BULLET;So;0;ON;;;;;N;;;;;
+25D9;INVERSE WHITE CIRCLE;So;0;ON;;;;;N;;;;;
+25DA;UPPER HALF INVERSE WHITE CIRCLE;So;0;ON;;;;;N;;;;;
+25DB;LOWER HALF INVERSE WHITE CIRCLE;So;0;ON;;;;;N;;;;;
+25DC;UPPER LEFT QUADRANT CIRCULAR ARC;So;0;ON;;;;;N;;;;;
+25DD;UPPER RIGHT QUADRANT CIRCULAR ARC;So;0;ON;;;;;N;;;;;
+25DE;LOWER RIGHT QUADRANT CIRCULAR ARC;So;0;ON;;;;;N;;;;;
+25DF;LOWER LEFT QUADRANT CIRCULAR ARC;So;0;ON;;;;;N;;;;;
+25E0;UPPER HALF CIRCLE;So;0;ON;;;;;N;;;;;
+25E1;LOWER HALF CIRCLE;So;0;ON;;;;;N;;;;;
+25E2;BLACK LOWER RIGHT TRIANGLE;So;0;ON;;;;;N;;;;;
+25E3;BLACK LOWER LEFT TRIANGLE;So;0;ON;;;;;N;;;;;
+25E4;BLACK UPPER LEFT TRIANGLE;So;0;ON;;;;;N;;;;;
+25E5;BLACK UPPER RIGHT TRIANGLE;So;0;ON;;;;;N;;;;;
+25E6;WHITE BULLET;So;0;ON;;;;;N;;;;;
+25E7;SQUARE WITH LEFT HALF BLACK;So;0;ON;;;;;N;;;;;
+25E8;SQUARE WITH RIGHT HALF BLACK;So;0;ON;;;;;N;;;;;
+25E9;SQUARE WITH UPPER LEFT DIAGONAL HALF BLACK;So;0;ON;;;;;N;;;;;
+25EA;SQUARE WITH LOWER RIGHT DIAGONAL HALF BLACK;So;0;ON;;;;;N;;;;;
+25EB;WHITE SQUARE WITH VERTICAL BISECTING LINE;So;0;ON;;;;;N;;;;;
+25EC;WHITE UP-POINTING TRIANGLE WITH DOT;So;0;ON;;;;;N;WHITE UP POINTING TRIANGLE WITH DOT;;;;
+25ED;UP-POINTING TRIANGLE WITH LEFT HALF BLACK;So;0;ON;;;;;N;UP POINTING TRIANGLE WITH LEFT HALF BLACK;;;;
+25EE;UP-POINTING TRIANGLE WITH RIGHT HALF BLACK;So;0;ON;;;;;N;UP POINTING TRIANGLE WITH RIGHT HALF BLACK;;;;
+25EF;LARGE CIRCLE;So;0;ON;;;;;N;;;;;
+25F0;WHITE SQUARE WITH UPPER LEFT QUADRANT;So;0;ON;;;;;N;;;;;
+25F1;WHITE SQUARE WITH LOWER LEFT QUADRANT;So;0;ON;;;;;N;;;;;
+25F2;WHITE SQUARE WITH LOWER RIGHT QUADRANT;So;0;ON;;;;;N;;;;;
+25F3;WHITE SQUARE WITH UPPER RIGHT QUADRANT;So;0;ON;;;;;N;;;;;
+25F4;WHITE CIRCLE WITH UPPER LEFT QUADRANT;So;0;ON;;;;;N;;;;;
+25F5;WHITE CIRCLE WITH LOWER LEFT QUADRANT;So;0;ON;;;;;N;;;;;
+25F6;WHITE CIRCLE WITH LOWER RIGHT QUADRANT;So;0;ON;;;;;N;;;;;
+25F7;WHITE CIRCLE WITH UPPER RIGHT QUADRANT;So;0;ON;;;;;N;;;;;
+25F8;UPPER LEFT TRIANGLE;Sm;0;ON;;;;;N;;;;;
+25F9;UPPER RIGHT TRIANGLE;Sm;0;ON;;;;;N;;;;;
+25FA;LOWER LEFT TRIANGLE;Sm;0;ON;;;;;N;;;;;
+25FB;WHITE MEDIUM SQUARE;Sm;0;ON;;;;;N;;;;;
+25FC;BLACK MEDIUM SQUARE;Sm;0;ON;;;;;N;;;;;
+25FD;WHITE MEDIUM SMALL SQUARE;Sm;0;ON;;;;;N;;;;;
+25FE;BLACK MEDIUM SMALL SQUARE;Sm;0;ON;;;;;N;;;;;
+25FF;LOWER RIGHT TRIANGLE;Sm;0;ON;;;;;N;;;;;
+2600;BLACK SUN WITH RAYS;So;0;ON;;;;;N;;;;;
+2601;CLOUD;So;0;ON;;;;;N;;;;;
+2602;UMBRELLA;So;0;ON;;;;;N;;;;;
+2603;SNOWMAN;So;0;ON;;;;;N;;;;;
+2604;COMET;So;0;ON;;;;;N;;;;;
+2605;BLACK STAR;So;0;ON;;;;;N;;;;;
+2606;WHITE STAR;So;0;ON;;;;;N;;;;;
+2607;LIGHTNING;So;0;ON;;;;;N;;;;;
+2608;THUNDERSTORM;So;0;ON;;;;;N;;;;;
+2609;SUN;So;0;ON;;;;;N;;;;;
+260A;ASCENDING NODE;So;0;ON;;;;;N;;;;;
+260B;DESCENDING NODE;So;0;ON;;;;;N;;;;;
+260C;CONJUNCTION;So;0;ON;;;;;N;;;;;
+260D;OPPOSITION;So;0;ON;;;;;N;;;;;
+260E;BLACK TELEPHONE;So;0;ON;;;;;N;;;;;
+260F;WHITE TELEPHONE;So;0;ON;;;;;N;;;;;
+2610;BALLOT BOX;So;0;ON;;;;;N;;;;;
+2611;BALLOT BOX WITH CHECK;So;0;ON;;;;;N;;;;;
+2612;BALLOT BOX WITH X;So;0;ON;;;;;N;;;;;
+2613;SALTIRE;So;0;ON;;;;;N;;;;;
+2614;UMBRELLA WITH RAIN DROPS;So;0;ON;;;;;N;;;;;
+2615;HOT BEVERAGE;So;0;ON;;;;;N;;;;;
+2616;WHITE SHOGI PIECE;So;0;ON;;;;;N;;;;;
+2617;BLACK SHOGI PIECE;So;0;ON;;;;;N;;;;;
+2618;SHAMROCK;So;0;ON;;;;;N;;;;;
+2619;REVERSED ROTATED FLORAL HEART BULLET;So;0;ON;;;;;N;;;;;
+261A;BLACK LEFT POINTING INDEX;So;0;ON;;;;;N;;;;;
+261B;BLACK RIGHT POINTING INDEX;So;0;ON;;;;;N;;;;;
+261C;WHITE LEFT POINTING INDEX;So;0;ON;;;;;N;;;;;
+261D;WHITE UP POINTING INDEX;So;0;ON;;;;;N;;;;;
+261E;WHITE RIGHT POINTING INDEX;So;0;ON;;;;;N;;;;;
+261F;WHITE DOWN POINTING INDEX;So;0;ON;;;;;N;;;;;
+2620;SKULL AND CROSSBONES;So;0;ON;;;;;N;;;;;
+2621;CAUTION SIGN;So;0;ON;;;;;N;;;;;
+2622;RADIOACTIVE SIGN;So;0;ON;;;;;N;;;;;
+2623;BIOHAZARD SIGN;So;0;ON;;;;;N;;;;;
+2624;CADUCEUS;So;0;ON;;;;;N;;;;;
+2625;ANKH;So;0;ON;;;;;N;;;;;
+2626;ORTHODOX CROSS;So;0;ON;;;;;N;;;;;
+2627;CHI RHO;So;0;ON;;;;;N;;;;;
+2628;CROSS OF LORRAINE;So;0;ON;;;;;N;;;;;
+2629;CROSS OF JERUSALEM;So;0;ON;;;;;N;;;;;
+262A;STAR AND CRESCENT;So;0;ON;;;;;N;;;;;
+262B;FARSI SYMBOL;So;0;ON;;;;;N;SYMBOL OF IRAN;;;;
+262C;ADI SHAKTI;So;0;ON;;;;;N;;;;;
+262D;HAMMER AND SICKLE;So;0;ON;;;;;N;;;;;
+262E;PEACE SYMBOL;So;0;ON;;;;;N;;;;;
+262F;YIN YANG;So;0;ON;;;;;N;;;;;
+2630;TRIGRAM FOR HEAVEN;So;0;ON;;;;;N;;;;;
+2631;TRIGRAM FOR LAKE;So;0;ON;;;;;N;;;;;
+2632;TRIGRAM FOR FIRE;So;0;ON;;;;;N;;;;;
+2633;TRIGRAM FOR THUNDER;So;0;ON;;;;;N;;;;;
+2634;TRIGRAM FOR WIND;So;0;ON;;;;;N;;;;;
+2635;TRIGRAM FOR WATER;So;0;ON;;;;;N;;;;;
+2636;TRIGRAM FOR MOUNTAIN;So;0;ON;;;;;N;;;;;
+2637;TRIGRAM FOR EARTH;So;0;ON;;;;;N;;;;;
+2638;WHEEL OF DHARMA;So;0;ON;;;;;N;;;;;
+2639;WHITE FROWNING FACE;So;0;ON;;;;;N;;;;;
+263A;WHITE SMILING FACE;So;0;ON;;;;;N;;;;;
+263B;BLACK SMILING FACE;So;0;ON;;;;;N;;;;;
+263C;WHITE SUN WITH RAYS;So;0;ON;;;;;N;;;;;
+263D;FIRST QUARTER MOON;So;0;ON;;;;;N;;;;;
+263E;LAST QUARTER MOON;So;0;ON;;;;;N;;;;;
+263F;MERCURY;So;0;ON;;;;;N;;;;;
+2640;FEMALE SIGN;So;0;ON;;;;;N;;;;;
+2641;EARTH;So;0;ON;;;;;N;;;;;
+2642;MALE SIGN;So;0;ON;;;;;N;;;;;
+2643;JUPITER;So;0;ON;;;;;N;;;;;
+2644;SATURN;So;0;ON;;;;;N;;;;;
+2645;URANUS;So;0;ON;;;;;N;;;;;
+2646;NEPTUNE;So;0;ON;;;;;N;;;;;
+2647;PLUTO;So;0;ON;;;;;N;;;;;
+2648;ARIES;So;0;ON;;;;;N;;;;;
+2649;TAURUS;So;0;ON;;;;;N;;;;;
+264A;GEMINI;So;0;ON;;;;;N;;;;;
+264B;CANCER;So;0;ON;;;;;N;;;;;
+264C;LEO;So;0;ON;;;;;N;;;;;
+264D;VIRGO;So;0;ON;;;;;N;;;;;
+264E;LIBRA;So;0;ON;;;;;N;;;;;
+264F;SCORPIUS;So;0;ON;;;;;N;;;;;
+2650;SAGITTARIUS;So;0;ON;;;;;N;;;;;
+2651;CAPRICORN;So;0;ON;;;;;N;;;;;
+2652;AQUARIUS;So;0;ON;;;;;N;;;;;
+2653;PISCES;So;0;ON;;;;;N;;;;;
+2654;WHITE CHESS KING;So;0;ON;;;;;N;;;;;
+2655;WHITE CHESS QUEEN;So;0;ON;;;;;N;;;;;
+2656;WHITE CHESS ROOK;So;0;ON;;;;;N;;;;;
+2657;WHITE CHESS BISHOP;So;0;ON;;;;;N;;;;;
+2658;WHITE CHESS KNIGHT;So;0;ON;;;;;N;;;;;
+2659;WHITE CHESS PAWN;So;0;ON;;;;;N;;;;;
+265A;BLACK CHESS KING;So;0;ON;;;;;N;;;;;
+265B;BLACK CHESS QUEEN;So;0;ON;;;;;N;;;;;
+265C;BLACK CHESS ROOK;So;0;ON;;;;;N;;;;;
+265D;BLACK CHESS BISHOP;So;0;ON;;;;;N;;;;;
+265E;BLACK CHESS KNIGHT;So;0;ON;;;;;N;;;;;
+265F;BLACK CHESS PAWN;So;0;ON;;;;;N;;;;;
+2660;BLACK SPADE SUIT;So;0;ON;;;;;N;;;;;
+2661;WHITE HEART SUIT;So;0;ON;;;;;N;;;;;
+2662;WHITE DIAMOND SUIT;So;0;ON;;;;;N;;;;;
+2663;BLACK CLUB SUIT;So;0;ON;;;;;N;;;;;
+2664;WHITE SPADE SUIT;So;0;ON;;;;;N;;;;;
+2665;BLACK HEART SUIT;So;0;ON;;;;;N;;;;;
+2666;BLACK DIAMOND SUIT;So;0;ON;;;;;N;;;;;
+2667;WHITE CLUB SUIT;So;0;ON;;;;;N;;;;;
+2668;HOT SPRINGS;So;0;ON;;;;;N;;;;;
+2669;QUARTER NOTE;So;0;ON;;;;;N;;;;;
+266A;EIGHTH NOTE;So;0;ON;;;;;N;;;;;
+266B;BEAMED EIGHTH NOTES;So;0;ON;;;;;N;BARRED EIGHTH NOTES;;;;
+266C;BEAMED SIXTEENTH NOTES;So;0;ON;;;;;N;BARRED SIXTEENTH NOTES;;;;
+266D;MUSIC FLAT SIGN;So;0;ON;;;;;N;FLAT;;;;
+266E;MUSIC NATURAL SIGN;So;0;ON;;;;;N;NATURAL;;;;
+266F;MUSIC SHARP SIGN;Sm;0;ON;;;;;N;SHARP;;;;
+2670;WEST SYRIAC CROSS;So;0;ON;;;;;N;;;;;
+2671;EAST SYRIAC CROSS;So;0;ON;;;;;N;;;;;
+2672;UNIVERSAL RECYCLING SYMBOL;So;0;ON;;;;;N;;;;;
+2673;RECYCLING SYMBOL FOR TYPE-1 PLASTICS;So;0;ON;;;;;N;;;;;
+2674;RECYCLING SYMBOL FOR TYPE-2 PLASTICS;So;0;ON;;;;;N;;;;;
+2675;RECYCLING SYMBOL FOR TYPE-3 PLASTICS;So;0;ON;;;;;N;;;;;
+2676;RECYCLING SYMBOL FOR TYPE-4 PLASTICS;So;0;ON;;;;;N;;;;;
+2677;RECYCLING SYMBOL FOR TYPE-5 PLASTICS;So;0;ON;;;;;N;;;;;
+2678;RECYCLING SYMBOL FOR TYPE-6 PLASTICS;So;0;ON;;;;;N;;;;;
+2679;RECYCLING SYMBOL FOR TYPE-7 PLASTICS;So;0;ON;;;;;N;;;;;
+267A;RECYCLING SYMBOL FOR GENERIC MATERIALS;So;0;ON;;;;;N;;;;;
+267B;BLACK UNIVERSAL RECYCLING SYMBOL;So;0;ON;;;;;N;;;;;
+267C;RECYCLED PAPER SYMBOL;So;0;ON;;;;;N;;;;;
+267D;PARTIALLY-RECYCLED PAPER SYMBOL;So;0;ON;;;;;N;;;;;
+267E;PERMANENT PAPER SIGN;So;0;ON;;;;;N;;;;;
+267F;WHEELCHAIR SYMBOL;So;0;ON;;;;;N;;;;;
+2680;DIE FACE-1;So;0;ON;;;;;N;;;;;
+2681;DIE FACE-2;So;0;ON;;;;;N;;;;;
+2682;DIE FACE-3;So;0;ON;;;;;N;;;;;
+2683;DIE FACE-4;So;0;ON;;;;;N;;;;;
+2684;DIE FACE-5;So;0;ON;;;;;N;;;;;
+2685;DIE FACE-6;So;0;ON;;;;;N;;;;;
+2686;WHITE CIRCLE WITH DOT RIGHT;So;0;ON;;;;;N;;;;;
+2687;WHITE CIRCLE WITH TWO DOTS;So;0;ON;;;;;N;;;;;
+2688;BLACK CIRCLE WITH WHITE DOT RIGHT;So;0;ON;;;;;N;;;;;
+2689;BLACK CIRCLE WITH TWO WHITE DOTS;So;0;ON;;;;;N;;;;;
+268A;MONOGRAM FOR YANG;So;0;ON;;;;;N;;;;;
+268B;MONOGRAM FOR YIN;So;0;ON;;;;;N;;;;;
+268C;DIGRAM FOR GREATER YANG;So;0;ON;;;;;N;;;;;
+268D;DIGRAM FOR LESSER YIN;So;0;ON;;;;;N;;;;;
+268E;DIGRAM FOR LESSER YANG;So;0;ON;;;;;N;;;;;
+268F;DIGRAM FOR GREATER YIN;So;0;ON;;;;;N;;;;;
+2690;WHITE FLAG;So;0;ON;;;;;N;;;;;
+2691;BLACK FLAG;So;0;ON;;;;;N;;;;;
+2692;HAMMER AND PICK;So;0;ON;;;;;N;;;;;
+2693;ANCHOR;So;0;ON;;;;;N;;;;;
+2694;CROSSED SWORDS;So;0;ON;;;;;N;;;;;
+2695;STAFF OF AESCULAPIUS;So;0;ON;;;;;N;;;;;
+2696;SCALES;So;0;ON;;;;;N;;;;;
+2697;ALEMBIC;So;0;ON;;;;;N;;;;;
+2698;FLOWER;So;0;ON;;;;;N;;;;;
+2699;GEAR;So;0;ON;;;;;N;;;;;
+269A;STAFF OF HERMES;So;0;ON;;;;;N;;;;;
+269B;ATOM SYMBOL;So;0;ON;;;;;N;;;;;
+269C;FLEUR-DE-LIS;So;0;ON;;;;;N;;;;;
+269D;OUTLINED WHITE STAR;So;0;ON;;;;;N;;;;;
+269E;THREE LINES CONVERGING RIGHT;So;0;ON;;;;;N;;;;;
+269F;THREE LINES CONVERGING LEFT;So;0;ON;;;;;N;;;;;
+26A0;WARNING SIGN;So;0;ON;;;;;N;;;;;
+26A1;HIGH VOLTAGE SIGN;So;0;ON;;;;;N;;;;;
+26A2;DOUBLED FEMALE SIGN;So;0;ON;;;;;N;;;;;
+26A3;DOUBLED MALE SIGN;So;0;ON;;;;;N;;;;;
+26A4;INTERLOCKED FEMALE AND MALE SIGN;So;0;ON;;;;;N;;;;;
+26A5;MALE AND FEMALE SIGN;So;0;ON;;;;;N;;;;;
+26A6;MALE WITH STROKE SIGN;So;0;ON;;;;;N;;;;;
+26A7;MALE WITH STROKE AND MALE AND FEMALE SIGN;So;0;ON;;;;;N;;;;;
+26A8;VERTICAL MALE WITH STROKE SIGN;So;0;ON;;;;;N;;;;;
+26A9;HORIZONTAL MALE WITH STROKE SIGN;So;0;ON;;;;;N;;;;;
+26AA;MEDIUM WHITE CIRCLE;So;0;ON;;;;;N;;;;;
+26AB;MEDIUM BLACK CIRCLE;So;0;ON;;;;;N;;;;;
+26AC;MEDIUM SMALL WHITE CIRCLE;So;0;L;;;;;N;;;;;
+26AD;MARRIAGE SYMBOL;So;0;ON;;;;;N;;;;;
+26AE;DIVORCE SYMBOL;So;0;ON;;;;;N;;;;;
+26AF;UNMARRIED PARTNERSHIP SYMBOL;So;0;ON;;;;;N;;;;;
+26B0;COFFIN;So;0;ON;;;;;N;;;;;
+26B1;FUNERAL URN;So;0;ON;;;;;N;;;;;
+26B2;NEUTER;So;0;ON;;;;;N;;;;;
+26B3;CERES;So;0;ON;;;;;N;;;;;
+26B4;PALLAS;So;0;ON;;;;;N;;;;;
+26B5;JUNO;So;0;ON;;;;;N;;;;;
+26B6;VESTA;So;0;ON;;;;;N;;;;;
+26B7;CHIRON;So;0;ON;;;;;N;;;;;
+26B8;BLACK MOON LILITH;So;0;ON;;;;;N;;;;;
+26B9;SEXTILE;So;0;ON;;;;;N;;;;;
+26BA;SEMISEXTILE;So;0;ON;;;;;N;;;;;
+26BB;QUINCUNX;So;0;ON;;;;;N;;;;;
+26BC;SESQUIQUADRATE;So;0;ON;;;;;N;;;;;
+26BD;SOCCER BALL;So;0;ON;;;;;N;;;;;
+26BE;BASEBALL;So;0;ON;;;;;N;;;;;
+26BF;SQUARED KEY;So;0;ON;;;;;N;;;;;
+26C0;WHITE DRAUGHTS MAN;So;0;ON;;;;;N;;;;;
+26C1;WHITE DRAUGHTS KING;So;0;ON;;;;;N;;;;;
+26C2;BLACK DRAUGHTS MAN;So;0;ON;;;;;N;;;;;
+26C3;BLACK DRAUGHTS KING;So;0;ON;;;;;N;;;;;
+26C4;SNOWMAN WITHOUT SNOW;So;0;ON;;;;;N;;;;;
+26C5;SUN BEHIND CLOUD;So;0;ON;;;;;N;;;;;
+26C6;RAIN;So;0;ON;;;;;N;;;;;
+26C7;BLACK SNOWMAN;So;0;ON;;;;;N;;;;;
+26C8;THUNDER CLOUD AND RAIN;So;0;ON;;;;;N;;;;;
+26C9;TURNED WHITE SHOGI PIECE;So;0;ON;;;;;N;;;;;
+26CA;TURNED BLACK SHOGI PIECE;So;0;ON;;;;;N;;;;;
+26CB;WHITE DIAMOND IN SQUARE;So;0;ON;;;;;N;;;;;
+26CC;CROSSING LANES;So;0;ON;;;;;N;;;;;
+26CD;DISABLED CAR;So;0;ON;;;;;N;;;;;
+26CE;OPHIUCHUS;So;0;ON;;;;;N;;;;;
+26CF;PICK;So;0;ON;;;;;N;;;;;
+26D0;CAR SLIDING;So;0;ON;;;;;N;;;;;
+26D1;HELMET WITH WHITE CROSS;So;0;ON;;;;;N;;;;;
+26D2;CIRCLED CROSSING LANES;So;0;ON;;;;;N;;;;;
+26D3;CHAINS;So;0;ON;;;;;N;;;;;
+26D4;NO ENTRY;So;0;ON;;;;;N;;;;;
+26D5;ALTERNATE ONE-WAY LEFT WAY TRAFFIC;So;0;ON;;;;;N;;;;;
+26D6;BLACK TWO-WAY LEFT WAY TRAFFIC;So;0;ON;;;;;N;;;;;
+26D7;WHITE TWO-WAY LEFT WAY TRAFFIC;So;0;ON;;;;;N;;;;;
+26D8;BLACK LEFT LANE MERGE;So;0;ON;;;;;N;;;;;
+26D9;WHITE LEFT LANE MERGE;So;0;ON;;;;;N;;;;;
+26DA;DRIVE SLOW SIGN;So;0;ON;;;;;N;;;;;
+26DB;HEAVY WHITE DOWN-POINTING TRIANGLE;So;0;ON;;;;;N;;;;;
+26DC;LEFT CLOSED ENTRY;So;0;ON;;;;;N;;;;;
+26DD;SQUARED SALTIRE;So;0;ON;;;;;N;;;;;
+26DE;FALLING DIAGONAL IN WHITE CIRCLE IN BLACK SQUARE;So;0;ON;;;;;N;;;;;
+26DF;BLACK TRUCK;So;0;ON;;;;;N;;;;;
+26E0;RESTRICTED LEFT ENTRY-1;So;0;ON;;;;;N;;;;;
+26E1;RESTRICTED LEFT ENTRY-2;So;0;ON;;;;;N;;;;;
+26E2;ASTRONOMICAL SYMBOL FOR URANUS;So;0;ON;;;;;N;;;;;
+26E3;HEAVY CIRCLE WITH STROKE AND TWO DOTS ABOVE;So;0;ON;;;;;N;;;;;
+26E4;PENTAGRAM;So;0;ON;;;;;N;;;;;
+26E5;RIGHT-HANDED INTERLACED PENTAGRAM;So;0;ON;;;;;N;;;;;
+26E6;LEFT-HANDED INTERLACED PENTAGRAM;So;0;ON;;;;;N;;;;;
+26E7;INVERTED PENTAGRAM;So;0;ON;;;;;N;;;;;
+26E8;BLACK CROSS ON SHIELD;So;0;ON;;;;;N;;;;;
+26E9;SHINTO SHRINE;So;0;ON;;;;;N;;;;;
+26EA;CHURCH;So;0;ON;;;;;N;;;;;
+26EB;CASTLE;So;0;ON;;;;;N;;;;;
+26EC;HISTORIC SITE;So;0;ON;;;;;N;;;;;
+26ED;GEAR WITHOUT HUB;So;0;ON;;;;;N;;;;;
+26EE;GEAR WITH HANDLES;So;0;ON;;;;;N;;;;;
+26EF;MAP SYMBOL FOR LIGHTHOUSE;So;0;ON;;;;;N;;;;;
+26F0;MOUNTAIN;So;0;ON;;;;;N;;;;;
+26F1;UMBRELLA ON GROUND;So;0;ON;;;;;N;;;;;
+26F2;FOUNTAIN;So;0;ON;;;;;N;;;;;
+26F3;FLAG IN HOLE;So;0;ON;;;;;N;;;;;
+26F4;FERRY;So;0;ON;;;;;N;;;;;
+26F5;SAILBOAT;So;0;ON;;;;;N;;;;;
+26F6;SQUARE FOUR CORNERS;So;0;ON;;;;;N;;;;;
+26F7;SKIER;So;0;ON;;;;;N;;;;;
+26F8;ICE SKATE;So;0;ON;;;;;N;;;;;
+26F9;PERSON WITH BALL;So;0;ON;;;;;N;;;;;
+26FA;TENT;So;0;ON;;;;;N;;;;;
+26FB;JAPANESE BANK SYMBOL;So;0;ON;;;;;N;;;;;
+26FC;HEADSTONE GRAVEYARD SYMBOL;So;0;ON;;;;;N;;;;;
+26FD;FUEL PUMP;So;0;ON;;;;;N;;;;;
+26FE;CUP ON BLACK SQUARE;So;0;ON;;;;;N;;;;;
+26FF;WHITE FLAG WITH HORIZONTAL MIDDLE BLACK STRIPE;So;0;ON;;;;;N;;;;;
+2701;UPPER BLADE SCISSORS;So;0;ON;;;;;N;;;;;
+2702;BLACK SCISSORS;So;0;ON;;;;;N;;;;;
+2703;LOWER BLADE SCISSORS;So;0;ON;;;;;N;;;;;
+2704;WHITE SCISSORS;So;0;ON;;;;;N;;;;;
+2705;WHITE HEAVY CHECK MARK;So;0;ON;;;;;N;;;;;
+2706;TELEPHONE LOCATION SIGN;So;0;ON;;;;;N;;;;;
+2707;TAPE DRIVE;So;0;ON;;;;;N;;;;;
+2708;AIRPLANE;So;0;ON;;;;;N;;;;;
+2709;ENVELOPE;So;0;ON;;;;;N;;;;;
+270A;RAISED FIST;So;0;ON;;;;;N;;;;;
+270B;RAISED HAND;So;0;ON;;;;;N;;;;;
+270C;VICTORY HAND;So;0;ON;;;;;N;;;;;
+270D;WRITING HAND;So;0;ON;;;;;N;;;;;
+270E;LOWER RIGHT PENCIL;So;0;ON;;;;;N;;;;;
+270F;PENCIL;So;0;ON;;;;;N;;;;;
+2710;UPPER RIGHT PENCIL;So;0;ON;;;;;N;;;;;
+2711;WHITE NIB;So;0;ON;;;;;N;;;;;
+2712;BLACK NIB;So;0;ON;;;;;N;;;;;
+2713;CHECK MARK;So;0;ON;;;;;N;;;;;
+2714;HEAVY CHECK MARK;So;0;ON;;;;;N;;;;;
+2715;MULTIPLICATION X;So;0;ON;;;;;N;;;;;
+2716;HEAVY MULTIPLICATION X;So;0;ON;;;;;N;;;;;
+2717;BALLOT X;So;0;ON;;;;;N;;;;;
+2718;HEAVY BALLOT X;So;0;ON;;;;;N;;;;;
+2719;OUTLINED GREEK CROSS;So;0;ON;;;;;N;;;;;
+271A;HEAVY GREEK CROSS;So;0;ON;;;;;N;;;;;
+271B;OPEN CENTRE CROSS;So;0;ON;;;;;N;OPEN CENTER CROSS;;;;
+271C;HEAVY OPEN CENTRE CROSS;So;0;ON;;;;;N;HEAVY OPEN CENTER CROSS;;;;
+271D;LATIN CROSS;So;0;ON;;;;;N;;;;;
+271E;SHADOWED WHITE LATIN CROSS;So;0;ON;;;;;N;;;;;
+271F;OUTLINED LATIN CROSS;So;0;ON;;;;;N;;;;;
+2720;MALTESE CROSS;So;0;ON;;;;;N;;;;;
+2721;STAR OF DAVID;So;0;ON;;;;;N;;;;;
+2722;FOUR TEARDROP-SPOKED ASTERISK;So;0;ON;;;;;N;;;;;
+2723;FOUR BALLOON-SPOKED ASTERISK;So;0;ON;;;;;N;;;;;
+2724;HEAVY FOUR BALLOON-SPOKED ASTERISK;So;0;ON;;;;;N;;;;;
+2725;FOUR CLUB-SPOKED ASTERISK;So;0;ON;;;;;N;;;;;
+2726;BLACK FOUR POINTED STAR;So;0;ON;;;;;N;;;;;
+2727;WHITE FOUR POINTED STAR;So;0;ON;;;;;N;;;;;
+2728;SPARKLES;So;0;ON;;;;;N;;;;;
+2729;STRESS OUTLINED WHITE STAR;So;0;ON;;;;;N;;;;;
+272A;CIRCLED WHITE STAR;So;0;ON;;;;;N;;;;;
+272B;OPEN CENTRE BLACK STAR;So;0;ON;;;;;N;OPEN CENTER BLACK STAR;;;;
+272C;BLACK CENTRE WHITE STAR;So;0;ON;;;;;N;BLACK CENTER WHITE STAR;;;;
+272D;OUTLINED BLACK STAR;So;0;ON;;;;;N;;;;;
+272E;HEAVY OUTLINED BLACK STAR;So;0;ON;;;;;N;;;;;
+272F;PINWHEEL STAR;So;0;ON;;;;;N;;;;;
+2730;SHADOWED WHITE STAR;So;0;ON;;;;;N;;;;;
+2731;HEAVY ASTERISK;So;0;ON;;;;;N;;;;;
+2732;OPEN CENTRE ASTERISK;So;0;ON;;;;;N;OPEN CENTER ASTERISK;;;;
+2733;EIGHT SPOKED ASTERISK;So;0;ON;;;;;N;;;;;
+2734;EIGHT POINTED BLACK STAR;So;0;ON;;;;;N;;;;;
+2735;EIGHT POINTED PINWHEEL STAR;So;0;ON;;;;;N;;;;;
+2736;SIX POINTED BLACK STAR;So;0;ON;;;;;N;;;;;
+2737;EIGHT POINTED RECTILINEAR BLACK STAR;So;0;ON;;;;;N;;;;;
+2738;HEAVY EIGHT POINTED RECTILINEAR BLACK STAR;So;0;ON;;;;;N;;;;;
+2739;TWELVE POINTED BLACK STAR;So;0;ON;;;;;N;;;;;
+273A;SIXTEEN POINTED ASTERISK;So;0;ON;;;;;N;;;;;
+273B;TEARDROP-SPOKED ASTERISK;So;0;ON;;;;;N;;;;;
+273C;OPEN CENTRE TEARDROP-SPOKED ASTERISK;So;0;ON;;;;;N;OPEN CENTER TEARDROP-SPOKED ASTERISK;;;;
+273D;HEAVY TEARDROP-SPOKED ASTERISK;So;0;ON;;;;;N;;;;;
+273E;SIX PETALLED BLACK AND WHITE FLORETTE;So;0;ON;;;;;N;;;;;
+273F;BLACK FLORETTE;So;0;ON;;;;;N;;;;;
+2740;WHITE FLORETTE;So;0;ON;;;;;N;;;;;
+2741;EIGHT PETALLED OUTLINED BLACK FLORETTE;So;0;ON;;;;;N;;;;;
+2742;CIRCLED OPEN CENTRE EIGHT POINTED STAR;So;0;ON;;;;;N;CIRCLED OPEN CENTER EIGHT POINTED STAR;;;;
+2743;HEAVY TEARDROP-SPOKED PINWHEEL ASTERISK;So;0;ON;;;;;N;;;;;
+2744;SNOWFLAKE;So;0;ON;;;;;N;;;;;
+2745;TIGHT TRIFOLIATE SNOWFLAKE;So;0;ON;;;;;N;;;;;
+2746;HEAVY CHEVRON SNOWFLAKE;So;0;ON;;;;;N;;;;;
+2747;SPARKLE;So;0;ON;;;;;N;;;;;
+2748;HEAVY SPARKLE;So;0;ON;;;;;N;;;;;
+2749;BALLOON-SPOKED ASTERISK;So;0;ON;;;;;N;;;;;
+274A;EIGHT TEARDROP-SPOKED PROPELLER ASTERISK;So;0;ON;;;;;N;;;;;
+274B;HEAVY EIGHT TEARDROP-SPOKED PROPELLER ASTERISK;So;0;ON;;;;;N;;;;;
+274C;CROSS MARK;So;0;ON;;;;;N;;;;;
+274D;SHADOWED WHITE CIRCLE;So;0;ON;;;;;N;;;;;
+274E;NEGATIVE SQUARED CROSS MARK;So;0;ON;;;;;N;;;;;
+274F;LOWER RIGHT DROP-SHADOWED WHITE SQUARE;So;0;ON;;;;;N;;;;;
+2750;UPPER RIGHT DROP-SHADOWED WHITE SQUARE;So;0;ON;;;;;N;;;;;
+2751;LOWER RIGHT SHADOWED WHITE SQUARE;So;0;ON;;;;;N;;;;;
+2752;UPPER RIGHT SHADOWED WHITE SQUARE;So;0;ON;;;;;N;;;;;
+2753;BLACK QUESTION MARK ORNAMENT;So;0;ON;;;;;N;;;;;
+2754;WHITE QUESTION MARK ORNAMENT;So;0;ON;;;;;N;;;;;
+2755;WHITE EXCLAMATION MARK ORNAMENT;So;0;ON;;;;;N;;;;;
+2756;BLACK DIAMOND MINUS WHITE X;So;0;ON;;;;;N;;;;;
+2757;HEAVY EXCLAMATION MARK SYMBOL;So;0;ON;;;;;N;;;;;
+2758;LIGHT VERTICAL BAR;So;0;ON;;;;;N;;;;;
+2759;MEDIUM VERTICAL BAR;So;0;ON;;;;;N;;;;;
+275A;HEAVY VERTICAL BAR;So;0;ON;;;;;N;;;;;
+275B;HEAVY SINGLE TURNED COMMA QUOTATION MARK ORNAMENT;So;0;ON;;;;;N;;;;;
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+275D;HEAVY DOUBLE TURNED COMMA QUOTATION MARK ORNAMENT;So;0;ON;;;;;N;;;;;
+275E;HEAVY DOUBLE COMMA QUOTATION MARK ORNAMENT;So;0;ON;;;;;N;;;;;
+275F;HEAVY LOW SINGLE COMMA QUOTATION MARK ORNAMENT;So;0;ON;;;;;N;;;;;
+2760;HEAVY LOW DOUBLE COMMA QUOTATION MARK ORNAMENT;So;0;ON;;;;;N;;;;;
+2761;CURVED STEM PARAGRAPH SIGN ORNAMENT;So;0;ON;;;;;N;;;;;
+2762;HEAVY EXCLAMATION MARK ORNAMENT;So;0;ON;;;;;N;;;;;
+2763;HEAVY HEART EXCLAMATION MARK ORNAMENT;So;0;ON;;;;;N;;;;;
+2764;HEAVY BLACK HEART;So;0;ON;;;;;N;;;;;
+2765;ROTATED HEAVY BLACK HEART BULLET;So;0;ON;;;;;N;;;;;
+2766;FLORAL HEART;So;0;ON;;;;;N;;;;;
+2767;ROTATED FLORAL HEART BULLET;So;0;ON;;;;;N;;;;;
+2768;MEDIUM LEFT PARENTHESIS ORNAMENT;Ps;0;ON;;;;;Y;;;;;
+2769;MEDIUM RIGHT PARENTHESIS ORNAMENT;Pe;0;ON;;;;;Y;;;;;
+276A;MEDIUM FLATTENED LEFT PARENTHESIS ORNAMENT;Ps;0;ON;;;;;Y;;;;;
+276B;MEDIUM FLATTENED RIGHT PARENTHESIS ORNAMENT;Pe;0;ON;;;;;Y;;;;;
+276C;MEDIUM LEFT-POINTING ANGLE BRACKET ORNAMENT;Ps;0;ON;;;;;Y;;;;;
+276D;MEDIUM RIGHT-POINTING ANGLE BRACKET ORNAMENT;Pe;0;ON;;;;;Y;;;;;
+276E;HEAVY LEFT-POINTING ANGLE QUOTATION MARK ORNAMENT;Ps;0;ON;;;;;Y;;;;;
+276F;HEAVY RIGHT-POINTING ANGLE QUOTATION MARK ORNAMENT;Pe;0;ON;;;;;Y;;;;;
+2770;HEAVY LEFT-POINTING ANGLE BRACKET ORNAMENT;Ps;0;ON;;;;;Y;;;;;
+2771;HEAVY RIGHT-POINTING ANGLE BRACKET ORNAMENT;Pe;0;ON;;;;;Y;;;;;
+2772;LIGHT LEFT TORTOISE SHELL BRACKET ORNAMENT;Ps;0;ON;;;;;Y;;;;;
+2773;LIGHT RIGHT TORTOISE SHELL BRACKET ORNAMENT;Pe;0;ON;;;;;Y;;;;;
+2774;MEDIUM LEFT CURLY BRACKET ORNAMENT;Ps;0;ON;;;;;Y;;;;;
+2775;MEDIUM RIGHT CURLY BRACKET ORNAMENT;Pe;0;ON;;;;;Y;;;;;
+2776;DINGBAT NEGATIVE CIRCLED DIGIT ONE;No;0;ON;;;1;1;N;INVERSE CIRCLED DIGIT ONE;;;;
+2777;DINGBAT NEGATIVE CIRCLED DIGIT TWO;No;0;ON;;;2;2;N;INVERSE CIRCLED DIGIT TWO;;;;
+2778;DINGBAT NEGATIVE CIRCLED DIGIT THREE;No;0;ON;;;3;3;N;INVERSE CIRCLED DIGIT THREE;;;;
+2779;DINGBAT NEGATIVE CIRCLED DIGIT FOUR;No;0;ON;;;4;4;N;INVERSE CIRCLED DIGIT FOUR;;;;
+277A;DINGBAT NEGATIVE CIRCLED DIGIT FIVE;No;0;ON;;;5;5;N;INVERSE CIRCLED DIGIT FIVE;;;;
+277B;DINGBAT NEGATIVE CIRCLED DIGIT SIX;No;0;ON;;;6;6;N;INVERSE CIRCLED DIGIT SIX;;;;
+277C;DINGBAT NEGATIVE CIRCLED DIGIT SEVEN;No;0;ON;;;7;7;N;INVERSE CIRCLED DIGIT SEVEN;;;;
+277D;DINGBAT NEGATIVE CIRCLED DIGIT EIGHT;No;0;ON;;;8;8;N;INVERSE CIRCLED DIGIT EIGHT;;;;
+277E;DINGBAT NEGATIVE CIRCLED DIGIT NINE;No;0;ON;;;9;9;N;INVERSE CIRCLED DIGIT NINE;;;;
+277F;DINGBAT NEGATIVE CIRCLED NUMBER TEN;No;0;ON;;;;10;N;INVERSE CIRCLED NUMBER TEN;;;;
+2780;DINGBAT CIRCLED SANS-SERIF DIGIT ONE;No;0;ON;;;1;1;N;CIRCLED SANS-SERIF DIGIT ONE;;;;
+2781;DINGBAT CIRCLED SANS-SERIF DIGIT TWO;No;0;ON;;;2;2;N;CIRCLED SANS-SERIF DIGIT TWO;;;;
+2782;DINGBAT CIRCLED SANS-SERIF DIGIT THREE;No;0;ON;;;3;3;N;CIRCLED SANS-SERIF DIGIT THREE;;;;
+2783;DINGBAT CIRCLED SANS-SERIF DIGIT FOUR;No;0;ON;;;4;4;N;CIRCLED SANS-SERIF DIGIT FOUR;;;;
+2784;DINGBAT CIRCLED SANS-SERIF DIGIT FIVE;No;0;ON;;;5;5;N;CIRCLED SANS-SERIF DIGIT FIVE;;;;
+2785;DINGBAT CIRCLED SANS-SERIF DIGIT SIX;No;0;ON;;;6;6;N;CIRCLED SANS-SERIF DIGIT SIX;;;;
+2786;DINGBAT CIRCLED SANS-SERIF DIGIT SEVEN;No;0;ON;;;7;7;N;CIRCLED SANS-SERIF DIGIT SEVEN;;;;
+2787;DINGBAT CIRCLED SANS-SERIF DIGIT EIGHT;No;0;ON;;;8;8;N;CIRCLED SANS-SERIF DIGIT EIGHT;;;;
+2788;DINGBAT CIRCLED SANS-SERIF DIGIT NINE;No;0;ON;;;9;9;N;CIRCLED SANS-SERIF DIGIT NINE;;;;
+2789;DINGBAT CIRCLED SANS-SERIF NUMBER TEN;No;0;ON;;;;10;N;CIRCLED SANS-SERIF NUMBER TEN;;;;
+278A;DINGBAT NEGATIVE CIRCLED SANS-SERIF DIGIT ONE;No;0;ON;;;1;1;N;INVERSE CIRCLED SANS-SERIF DIGIT ONE;;;;
+278B;DINGBAT NEGATIVE CIRCLED SANS-SERIF DIGIT TWO;No;0;ON;;;2;2;N;INVERSE CIRCLED SANS-SERIF DIGIT TWO;;;;
+278C;DINGBAT NEGATIVE CIRCLED SANS-SERIF DIGIT THREE;No;0;ON;;;3;3;N;INVERSE CIRCLED SANS-SERIF DIGIT THREE;;;;
+278D;DINGBAT NEGATIVE CIRCLED SANS-SERIF DIGIT FOUR;No;0;ON;;;4;4;N;INVERSE CIRCLED SANS-SERIF DIGIT FOUR;;;;
+278E;DINGBAT NEGATIVE CIRCLED SANS-SERIF DIGIT FIVE;No;0;ON;;;5;5;N;INVERSE CIRCLED SANS-SERIF DIGIT FIVE;;;;
+278F;DINGBAT NEGATIVE CIRCLED SANS-SERIF DIGIT SIX;No;0;ON;;;6;6;N;INVERSE CIRCLED SANS-SERIF DIGIT SIX;;;;
+2790;DINGBAT NEGATIVE CIRCLED SANS-SERIF DIGIT SEVEN;No;0;ON;;;7;7;N;INVERSE CIRCLED SANS-SERIF DIGIT SEVEN;;;;
+2791;DINGBAT NEGATIVE CIRCLED SANS-SERIF DIGIT EIGHT;No;0;ON;;;8;8;N;INVERSE CIRCLED SANS-SERIF DIGIT EIGHT;;;;
+2792;DINGBAT NEGATIVE CIRCLED SANS-SERIF DIGIT NINE;No;0;ON;;;9;9;N;INVERSE CIRCLED SANS-SERIF DIGIT NINE;;;;
+2793;DINGBAT NEGATIVE CIRCLED SANS-SERIF NUMBER TEN;No;0;ON;;;;10;N;INVERSE CIRCLED SANS-SERIF NUMBER TEN;;;;
+2794;HEAVY WIDE-HEADED RIGHTWARDS ARROW;So;0;ON;;;;;N;HEAVY WIDE-HEADED RIGHT ARROW;;;;
+2795;HEAVY PLUS SIGN;So;0;ON;;;;;N;;;;;
+2796;HEAVY MINUS SIGN;So;0;ON;;;;;N;;;;;
+2797;HEAVY DIVISION SIGN;So;0;ON;;;;;N;;;;;
+2798;HEAVY SOUTH EAST ARROW;So;0;ON;;;;;N;HEAVY LOWER RIGHT ARROW;;;;
+2799;HEAVY RIGHTWARDS ARROW;So;0;ON;;;;;N;HEAVY RIGHT ARROW;;;;
+279A;HEAVY NORTH EAST ARROW;So;0;ON;;;;;N;HEAVY UPPER RIGHT ARROW;;;;
+279B;DRAFTING POINT RIGHTWARDS ARROW;So;0;ON;;;;;N;DRAFTING POINT RIGHT ARROW;;;;
+279C;HEAVY ROUND-TIPPED RIGHTWARDS ARROW;So;0;ON;;;;;N;HEAVY ROUND-TIPPED RIGHT ARROW;;;;
+279D;TRIANGLE-HEADED RIGHTWARDS ARROW;So;0;ON;;;;;N;TRIANGLE-HEADED RIGHT ARROW;;;;
+279E;HEAVY TRIANGLE-HEADED RIGHTWARDS ARROW;So;0;ON;;;;;N;HEAVY TRIANGLE-HEADED RIGHT ARROW;;;;
+279F;DASHED TRIANGLE-HEADED RIGHTWARDS ARROW;So;0;ON;;;;;N;DASHED TRIANGLE-HEADED RIGHT ARROW;;;;
+27A0;HEAVY DASHED TRIANGLE-HEADED RIGHTWARDS ARROW;So;0;ON;;;;;N;HEAVY DASHED TRIANGLE-HEADED RIGHT ARROW;;;;
+27A1;BLACK RIGHTWARDS ARROW;So;0;ON;;;;;N;BLACK RIGHT ARROW;;;;
+27A2;THREE-D TOP-LIGHTED RIGHTWARDS ARROWHEAD;So;0;ON;;;;;N;THREE-D TOP-LIGHTED RIGHT ARROWHEAD;;;;
+27A3;THREE-D BOTTOM-LIGHTED RIGHTWARDS ARROWHEAD;So;0;ON;;;;;N;THREE-D BOTTOM-LIGHTED RIGHT ARROWHEAD;;;;
+27A4;BLACK RIGHTWARDS ARROWHEAD;So;0;ON;;;;;N;BLACK RIGHT ARROWHEAD;;;;
+27A5;HEAVY BLACK CURVED DOWNWARDS AND RIGHTWARDS ARROW;So;0;ON;;;;;N;HEAVY BLACK CURVED DOWN AND RIGHT ARROW;;;;
+27A6;HEAVY BLACK CURVED UPWARDS AND RIGHTWARDS ARROW;So;0;ON;;;;;N;HEAVY BLACK CURVED UP AND RIGHT ARROW;;;;
+27A7;SQUAT BLACK RIGHTWARDS ARROW;So;0;ON;;;;;N;SQUAT BLACK RIGHT ARROW;;;;
+27A8;HEAVY CONCAVE-POINTED BLACK RIGHTWARDS ARROW;So;0;ON;;;;;N;HEAVY CONCAVE-POINTED BLACK RIGHT ARROW;;;;
+27A9;RIGHT-SHADED WHITE RIGHTWARDS ARROW;So;0;ON;;;;;N;RIGHT-SHADED WHITE RIGHT ARROW;;;;
+27AA;LEFT-SHADED WHITE RIGHTWARDS ARROW;So;0;ON;;;;;N;LEFT-SHADED WHITE RIGHT ARROW;;;;
+27AB;BACK-TILTED SHADOWED WHITE RIGHTWARDS ARROW;So;0;ON;;;;;N;BACK-TILTED SHADOWED WHITE RIGHT ARROW;;;;
+27AC;FRONT-TILTED SHADOWED WHITE RIGHTWARDS ARROW;So;0;ON;;;;;N;FRONT-TILTED SHADOWED WHITE RIGHT ARROW;;;;
+27AD;HEAVY LOWER RIGHT-SHADOWED WHITE RIGHTWARDS ARROW;So;0;ON;;;;;N;HEAVY LOWER RIGHT-SHADOWED WHITE RIGHT ARROW;;;;
+27AE;HEAVY UPPER RIGHT-SHADOWED WHITE RIGHTWARDS ARROW;So;0;ON;;;;;N;HEAVY UPPER RIGHT-SHADOWED WHITE RIGHT ARROW;;;;
+27AF;NOTCHED LOWER RIGHT-SHADOWED WHITE RIGHTWARDS ARROW;So;0;ON;;;;;N;NOTCHED LOWER RIGHT-SHADOWED WHITE RIGHT ARROW;;;;
+27B0;CURLY LOOP;So;0;ON;;;;;N;;;;;
+27B1;NOTCHED UPPER RIGHT-SHADOWED WHITE RIGHTWARDS ARROW;So;0;ON;;;;;N;NOTCHED UPPER RIGHT-SHADOWED WHITE RIGHT ARROW;;;;
+27B2;CIRCLED HEAVY WHITE RIGHTWARDS ARROW;So;0;ON;;;;;N;CIRCLED HEAVY WHITE RIGHT ARROW;;;;
+27B3;WHITE-FEATHERED RIGHTWARDS ARROW;So;0;ON;;;;;N;WHITE-FEATHERED RIGHT ARROW;;;;
+27B4;BLACK-FEATHERED SOUTH EAST ARROW;So;0;ON;;;;;N;BLACK-FEATHERED LOWER RIGHT ARROW;;;;
+27B5;BLACK-FEATHERED RIGHTWARDS ARROW;So;0;ON;;;;;N;BLACK-FEATHERED RIGHT ARROW;;;;
+27B6;BLACK-FEATHERED NORTH EAST ARROW;So;0;ON;;;;;N;BLACK-FEATHERED UPPER RIGHT ARROW;;;;
+27B7;HEAVY BLACK-FEATHERED SOUTH EAST ARROW;So;0;ON;;;;;N;HEAVY BLACK-FEATHERED LOWER RIGHT ARROW;;;;
+27B8;HEAVY BLACK-FEATHERED RIGHTWARDS ARROW;So;0;ON;;;;;N;HEAVY BLACK-FEATHERED RIGHT ARROW;;;;
+27B9;HEAVY BLACK-FEATHERED NORTH EAST ARROW;So;0;ON;;;;;N;HEAVY BLACK-FEATHERED UPPER RIGHT ARROW;;;;
+27BA;TEARDROP-BARBED RIGHTWARDS ARROW;So;0;ON;;;;;N;TEARDROP-BARBED RIGHT ARROW;;;;
+27BB;HEAVY TEARDROP-SHANKED RIGHTWARDS ARROW;So;0;ON;;;;;N;HEAVY TEARDROP-SHANKED RIGHT ARROW;;;;
+27BC;WEDGE-TAILED RIGHTWARDS ARROW;So;0;ON;;;;;N;WEDGE-TAILED RIGHT ARROW;;;;
+27BD;HEAVY WEDGE-TAILED RIGHTWARDS ARROW;So;0;ON;;;;;N;HEAVY WEDGE-TAILED RIGHT ARROW;;;;
+27BE;OPEN-OUTLINED RIGHTWARDS ARROW;So;0;ON;;;;;N;OPEN-OUTLINED RIGHT ARROW;;;;
+27BF;DOUBLE CURLY LOOP;So;0;ON;;;;;N;;;;;
+27C0;THREE DIMENSIONAL ANGLE;Sm;0;ON;;;;;Y;;;;;
+27C1;WHITE TRIANGLE CONTAINING SMALL WHITE TRIANGLE;Sm;0;ON;;;;;N;;;;;
+27C2;PERPENDICULAR;Sm;0;ON;;;;;N;;;;;
+27C3;OPEN SUBSET;Sm;0;ON;;;;;Y;;;;;
+27C4;OPEN SUPERSET;Sm;0;ON;;;;;Y;;;;;
+27C5;LEFT S-SHAPED BAG DELIMITER;Ps;0;ON;;;;;Y;;;;;
+27C6;RIGHT S-SHAPED BAG DELIMITER;Pe;0;ON;;;;;Y;;;;;
+27C7;OR WITH DOT INSIDE;Sm;0;ON;;;;;N;;;;;
+27C8;REVERSE SOLIDUS PRECEDING SUBSET;Sm;0;ON;;;;;Y;;;;;
+27C9;SUPERSET PRECEDING SOLIDUS;Sm;0;ON;;;;;Y;;;;;
+27CA;VERTICAL BAR WITH HORIZONTAL STROKE;Sm;0;ON;;;;;N;;;;;
+27CB;MATHEMATICAL RISING DIAGONAL;Sm;0;ON;;;;;Y;;;;;
+27CC;LONG DIVISION;Sm;0;ON;;;;;Y;;;;;
+27CD;MATHEMATICAL FALLING DIAGONAL;Sm;0;ON;;;;;Y;;;;;
+27CE;SQUARED LOGICAL AND;Sm;0;ON;;;;;N;;;;;
+27CF;SQUARED LOGICAL OR;Sm;0;ON;;;;;N;;;;;
+27D0;WHITE DIAMOND WITH CENTRED DOT;Sm;0;ON;;;;;N;;;;;
+27D1;AND WITH DOT;Sm;0;ON;;;;;N;;;;;
+27D2;ELEMENT OF OPENING UPWARDS;Sm;0;ON;;;;;N;;;;;
+27D3;LOWER RIGHT CORNER WITH DOT;Sm;0;ON;;;;;Y;;;;;
+27D4;UPPER LEFT CORNER WITH DOT;Sm;0;ON;;;;;Y;;;;;
+27D5;LEFT OUTER JOIN;Sm;0;ON;;;;;Y;;;;;
+27D6;RIGHT OUTER JOIN;Sm;0;ON;;;;;Y;;;;;
+27D7;FULL OUTER JOIN;Sm;0;ON;;;;;N;;;;;
+27D8;LARGE UP TACK;Sm;0;ON;;;;;N;;;;;
+27D9;LARGE DOWN TACK;Sm;0;ON;;;;;N;;;;;
+27DA;LEFT AND RIGHT DOUBLE TURNSTILE;Sm;0;ON;;;;;N;;;;;
+27DB;LEFT AND RIGHT TACK;Sm;0;ON;;;;;N;;;;;
+27DC;LEFT MULTIMAP;Sm;0;ON;;;;;Y;;;;;
+27DD;LONG RIGHT TACK;Sm;0;ON;;;;;Y;;;;;
+27DE;LONG LEFT TACK;Sm;0;ON;;;;;Y;;;;;
+27DF;UP TACK WITH CIRCLE ABOVE;Sm;0;ON;;;;;N;;;;;
+27E0;LOZENGE DIVIDED BY HORIZONTAL RULE;Sm;0;ON;;;;;N;;;;;
+27E1;WHITE CONCAVE-SIDED DIAMOND;Sm;0;ON;;;;;N;;;;;
+27E2;WHITE CONCAVE-SIDED DIAMOND WITH LEFTWARDS TICK;Sm;0;ON;;;;;Y;;;;;
+27E3;WHITE CONCAVE-SIDED DIAMOND WITH RIGHTWARDS TICK;Sm;0;ON;;;;;Y;;;;;
+27E4;WHITE SQUARE WITH LEFTWARDS TICK;Sm;0;ON;;;;;Y;;;;;
+27E5;WHITE SQUARE WITH RIGHTWARDS TICK;Sm;0;ON;;;;;Y;;;;;
+27E6;MATHEMATICAL LEFT WHITE SQUARE BRACKET;Ps;0;ON;;;;;Y;;;;;
+27E7;MATHEMATICAL RIGHT WHITE SQUARE BRACKET;Pe;0;ON;;;;;Y;;;;;
+27E8;MATHEMATICAL LEFT ANGLE BRACKET;Ps;0;ON;;;;;Y;;;;;
+27E9;MATHEMATICAL RIGHT ANGLE BRACKET;Pe;0;ON;;;;;Y;;;;;
+27EA;MATHEMATICAL LEFT DOUBLE ANGLE BRACKET;Ps;0;ON;;;;;Y;;;;;
+27EB;MATHEMATICAL RIGHT DOUBLE ANGLE BRACKET;Pe;0;ON;;;;;Y;;;;;
+27EC;MATHEMATICAL LEFT WHITE TORTOISE SHELL BRACKET;Ps;0;ON;;;;;Y;;;;;
+27ED;MATHEMATICAL RIGHT WHITE TORTOISE SHELL BRACKET;Pe;0;ON;;;;;Y;;;;;
+27EE;MATHEMATICAL LEFT FLATTENED PARENTHESIS;Ps;0;ON;;;;;Y;;;;;
+27EF;MATHEMATICAL RIGHT FLATTENED PARENTHESIS;Pe;0;ON;;;;;Y;;;;;
+27F0;UPWARDS QUADRUPLE ARROW;Sm;0;ON;;;;;N;;;;;
+27F1;DOWNWARDS QUADRUPLE ARROW;Sm;0;ON;;;;;N;;;;;
+27F2;ANTICLOCKWISE GAPPED CIRCLE ARROW;Sm;0;ON;;;;;N;;;;;
+27F3;CLOCKWISE GAPPED CIRCLE ARROW;Sm;0;ON;;;;;N;;;;;
+27F4;RIGHT ARROW WITH CIRCLED PLUS;Sm;0;ON;;;;;N;;;;;
+27F5;LONG LEFTWARDS ARROW;Sm;0;ON;;;;;N;;;;;
+27F6;LONG RIGHTWARDS ARROW;Sm;0;ON;;;;;N;;;;;
+27F7;LONG LEFT RIGHT ARROW;Sm;0;ON;;;;;N;;;;;
+27F8;LONG LEFTWARDS DOUBLE ARROW;Sm;0;ON;;;;;N;;;;;
+27F9;LONG RIGHTWARDS DOUBLE ARROW;Sm;0;ON;;;;;N;;;;;
+27FA;LONG LEFT RIGHT DOUBLE ARROW;Sm;0;ON;;;;;N;;;;;
+27FB;LONG LEFTWARDS ARROW FROM BAR;Sm;0;ON;;;;;N;;;;;
+27FC;LONG RIGHTWARDS ARROW FROM BAR;Sm;0;ON;;;;;N;;;;;
+27FD;LONG LEFTWARDS DOUBLE ARROW FROM BAR;Sm;0;ON;;;;;N;;;;;
+27FE;LONG RIGHTWARDS DOUBLE ARROW FROM BAR;Sm;0;ON;;;;;N;;;;;
+27FF;LONG RIGHTWARDS SQUIGGLE ARROW;Sm;0;ON;;;;;N;;;;;
+2800;BRAILLE PATTERN BLANK;So;0;L;;;;;N;;;;;
+2801;BRAILLE PATTERN DOTS-1;So;0;L;;;;;N;;;;;
+2802;BRAILLE PATTERN DOTS-2;So;0;L;;;;;N;;;;;
+2803;BRAILLE PATTERN DOTS-12;So;0;L;;;;;N;;;;;
+2804;BRAILLE PATTERN DOTS-3;So;0;L;;;;;N;;;;;
+2805;BRAILLE PATTERN DOTS-13;So;0;L;;;;;N;;;;;
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+2928;NORTH EAST ARROW AND SOUTH EAST ARROW;Sm;0;ON;;;;;N;;;;;
+2929;SOUTH EAST ARROW AND SOUTH WEST ARROW;Sm;0;ON;;;;;N;;;;;
+292A;SOUTH WEST ARROW AND NORTH WEST ARROW;Sm;0;ON;;;;;N;;;;;
+292B;RISING DIAGONAL CROSSING FALLING DIAGONAL;Sm;0;ON;;;;;N;;;;;
+292C;FALLING DIAGONAL CROSSING RISING DIAGONAL;Sm;0;ON;;;;;N;;;;;
+292D;SOUTH EAST ARROW CROSSING NORTH EAST ARROW;Sm;0;ON;;;;;N;;;;;
+292E;NORTH EAST ARROW CROSSING SOUTH EAST ARROW;Sm;0;ON;;;;;N;;;;;
+292F;FALLING DIAGONAL CROSSING NORTH EAST ARROW;Sm;0;ON;;;;;N;;;;;
+2930;RISING DIAGONAL CROSSING SOUTH EAST ARROW;Sm;0;ON;;;;;N;;;;;
+2931;NORTH EAST ARROW CROSSING NORTH WEST ARROW;Sm;0;ON;;;;;N;;;;;
+2932;NORTH WEST ARROW CROSSING NORTH EAST ARROW;Sm;0;ON;;;;;N;;;;;
+2933;WAVE ARROW POINTING DIRECTLY RIGHT;Sm;0;ON;;;;;N;;;;;
+2934;ARROW POINTING RIGHTWARDS THEN CURVING UPWARDS;Sm;0;ON;;;;;N;;;;;
+2935;ARROW POINTING RIGHTWARDS THEN CURVING DOWNWARDS;Sm;0;ON;;;;;N;;;;;
+2936;ARROW POINTING DOWNWARDS THEN CURVING LEFTWARDS;Sm;0;ON;;;;;N;;;;;
+2937;ARROW POINTING DOWNWARDS THEN CURVING RIGHTWARDS;Sm;0;ON;;;;;N;;;;;
+2938;RIGHT-SIDE ARC CLOCKWISE ARROW;Sm;0;ON;;;;;N;;;;;
+2939;LEFT-SIDE ARC ANTICLOCKWISE ARROW;Sm;0;ON;;;;;N;;;;;
+293A;TOP ARC ANTICLOCKWISE ARROW;Sm;0;ON;;;;;N;;;;;
+293B;BOTTOM ARC ANTICLOCKWISE ARROW;Sm;0;ON;;;;;N;;;;;
+293C;TOP ARC CLOCKWISE ARROW WITH MINUS;Sm;0;ON;;;;;N;;;;;
+293D;TOP ARC ANTICLOCKWISE ARROW WITH PLUS;Sm;0;ON;;;;;N;;;;;
+293E;LOWER RIGHT SEMICIRCULAR CLOCKWISE ARROW;Sm;0;ON;;;;;N;;;;;
+293F;LOWER LEFT SEMICIRCULAR ANTICLOCKWISE ARROW;Sm;0;ON;;;;;N;;;;;
+2940;ANTICLOCKWISE CLOSED CIRCLE ARROW;Sm;0;ON;;;;;N;;;;;
+2941;CLOCKWISE CLOSED CIRCLE ARROW;Sm;0;ON;;;;;N;;;;;
+2942;RIGHTWARDS ARROW ABOVE SHORT LEFTWARDS ARROW;Sm;0;ON;;;;;N;;;;;
+2943;LEFTWARDS ARROW ABOVE SHORT RIGHTWARDS ARROW;Sm;0;ON;;;;;N;;;;;
+2944;SHORT RIGHTWARDS ARROW ABOVE LEFTWARDS ARROW;Sm;0;ON;;;;;N;;;;;
+2945;RIGHTWARDS ARROW WITH PLUS BELOW;Sm;0;ON;;;;;N;;;;;
+2946;LEFTWARDS ARROW WITH PLUS BELOW;Sm;0;ON;;;;;N;;;;;
+2947;RIGHTWARDS ARROW THROUGH X;Sm;0;ON;;;;;N;;;;;
+2948;LEFT RIGHT ARROW THROUGH SMALL CIRCLE;Sm;0;ON;;;;;N;;;;;
+2949;UPWARDS TWO-HEADED ARROW FROM SMALL CIRCLE;Sm;0;ON;;;;;N;;;;;
+294A;LEFT BARB UP RIGHT BARB DOWN HARPOON;Sm;0;ON;;;;;N;;;;;
+294B;LEFT BARB DOWN RIGHT BARB UP HARPOON;Sm;0;ON;;;;;N;;;;;
+294C;UP BARB RIGHT DOWN BARB LEFT HARPOON;Sm;0;ON;;;;;N;;;;;
+294D;UP BARB LEFT DOWN BARB RIGHT HARPOON;Sm;0;ON;;;;;N;;;;;
+294E;LEFT BARB UP RIGHT BARB UP HARPOON;Sm;0;ON;;;;;N;;;;;
+294F;UP BARB RIGHT DOWN BARB RIGHT HARPOON;Sm;0;ON;;;;;N;;;;;
+2950;LEFT BARB DOWN RIGHT BARB DOWN HARPOON;Sm;0;ON;;;;;N;;;;;
+2951;UP BARB LEFT DOWN BARB LEFT HARPOON;Sm;0;ON;;;;;N;;;;;
+2952;LEFTWARDS HARPOON WITH BARB UP TO BAR;Sm;0;ON;;;;;N;;;;;
+2953;RIGHTWARDS HARPOON WITH BARB UP TO BAR;Sm;0;ON;;;;;N;;;;;
+2954;UPWARDS HARPOON WITH BARB RIGHT TO BAR;Sm;0;ON;;;;;N;;;;;
+2955;DOWNWARDS HARPOON WITH BARB RIGHT TO BAR;Sm;0;ON;;;;;N;;;;;
+2956;LEFTWARDS HARPOON WITH BARB DOWN TO BAR;Sm;0;ON;;;;;N;;;;;
+2957;RIGHTWARDS HARPOON WITH BARB DOWN TO BAR;Sm;0;ON;;;;;N;;;;;
+2958;UPWARDS HARPOON WITH BARB LEFT TO BAR;Sm;0;ON;;;;;N;;;;;
+2959;DOWNWARDS HARPOON WITH BARB LEFT TO BAR;Sm;0;ON;;;;;N;;;;;
+295A;LEFTWARDS HARPOON WITH BARB UP FROM BAR;Sm;0;ON;;;;;N;;;;;
+295B;RIGHTWARDS HARPOON WITH BARB UP FROM BAR;Sm;0;ON;;;;;N;;;;;
+295C;UPWARDS HARPOON WITH BARB RIGHT FROM BAR;Sm;0;ON;;;;;N;;;;;
+295D;DOWNWARDS HARPOON WITH BARB RIGHT FROM BAR;Sm;0;ON;;;;;N;;;;;
+295E;LEFTWARDS HARPOON WITH BARB DOWN FROM BAR;Sm;0;ON;;;;;N;;;;;
+295F;RIGHTWARDS HARPOON WITH BARB DOWN FROM BAR;Sm;0;ON;;;;;N;;;;;
+2960;UPWARDS HARPOON WITH BARB LEFT FROM BAR;Sm;0;ON;;;;;N;;;;;
+2961;DOWNWARDS HARPOON WITH BARB LEFT FROM BAR;Sm;0;ON;;;;;N;;;;;
+2962;LEFTWARDS HARPOON WITH BARB UP ABOVE LEFTWARDS HARPOON WITH BARB DOWN;Sm;0;ON;;;;;N;;;;;
+2963;UPWARDS HARPOON WITH BARB LEFT BESIDE UPWARDS HARPOON WITH BARB RIGHT;Sm;0;ON;;;;;N;;;;;
+2964;RIGHTWARDS HARPOON WITH BARB UP ABOVE RIGHTWARDS HARPOON WITH BARB DOWN;Sm;0;ON;;;;;N;;;;;
+2965;DOWNWARDS HARPOON WITH BARB LEFT BESIDE DOWNWARDS HARPOON WITH BARB RIGHT;Sm;0;ON;;;;;N;;;;;
+2966;LEFTWARDS HARPOON WITH BARB UP ABOVE RIGHTWARDS HARPOON WITH BARB UP;Sm;0;ON;;;;;N;;;;;
+2967;LEFTWARDS HARPOON WITH BARB DOWN ABOVE RIGHTWARDS HARPOON WITH BARB DOWN;Sm;0;ON;;;;;N;;;;;
+2968;RIGHTWARDS HARPOON WITH BARB UP ABOVE LEFTWARDS HARPOON WITH BARB UP;Sm;0;ON;;;;;N;;;;;
+2969;RIGHTWARDS HARPOON WITH BARB DOWN ABOVE LEFTWARDS HARPOON WITH BARB DOWN;Sm;0;ON;;;;;N;;;;;
+296A;LEFTWARDS HARPOON WITH BARB UP ABOVE LONG DASH;Sm;0;ON;;;;;N;;;;;
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+296D;RIGHTWARDS HARPOON WITH BARB DOWN BELOW LONG DASH;Sm;0;ON;;;;;N;;;;;
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+296F;DOWNWARDS HARPOON WITH BARB LEFT BESIDE UPWARDS HARPOON WITH BARB RIGHT;Sm;0;ON;;;;;N;;;;;
+2970;RIGHT DOUBLE ARROW WITH ROUNDED HEAD;Sm;0;ON;;;;;N;;;;;
+2971;EQUALS SIGN ABOVE RIGHTWARDS ARROW;Sm;0;ON;;;;;N;;;;;
+2972;TILDE OPERATOR ABOVE RIGHTWARDS ARROW;Sm;0;ON;;;;;N;;;;;
+2973;LEFTWARDS ARROW ABOVE TILDE OPERATOR;Sm;0;ON;;;;;N;;;;;
+2974;RIGHTWARDS ARROW ABOVE TILDE OPERATOR;Sm;0;ON;;;;;N;;;;;
+2975;RIGHTWARDS ARROW ABOVE ALMOST EQUAL TO;Sm;0;ON;;;;;N;;;;;
+2976;LESS-THAN ABOVE LEFTWARDS ARROW;Sm;0;ON;;;;;N;;;;;
+2977;LEFTWARDS ARROW THROUGH LESS-THAN;Sm;0;ON;;;;;N;;;;;
+2978;GREATER-THAN ABOVE RIGHTWARDS ARROW;Sm;0;ON;;;;;N;;;;;
+2979;SUBSET ABOVE RIGHTWARDS ARROW;Sm;0;ON;;;;;N;;;;;
+297A;LEFTWARDS ARROW THROUGH SUBSET;Sm;0;ON;;;;;N;;;;;
+297B;SUPERSET ABOVE LEFTWARDS ARROW;Sm;0;ON;;;;;N;;;;;
+297C;LEFT FISH TAIL;Sm;0;ON;;;;;N;;;;;
+297D;RIGHT FISH TAIL;Sm;0;ON;;;;;N;;;;;
+297E;UP FISH TAIL;Sm;0;ON;;;;;N;;;;;
+297F;DOWN FISH TAIL;Sm;0;ON;;;;;N;;;;;
+2980;TRIPLE VERTICAL BAR DELIMITER;Sm;0;ON;;;;;N;;;;;
+2981;Z NOTATION SPOT;Sm;0;ON;;;;;N;;;;;
+2982;Z NOTATION TYPE COLON;Sm;0;ON;;;;;N;;;;;
+2983;LEFT WHITE CURLY BRACKET;Ps;0;ON;;;;;Y;;;;;
+2984;RIGHT WHITE CURLY BRACKET;Pe;0;ON;;;;;Y;;;;;
+2985;LEFT WHITE PARENTHESIS;Ps;0;ON;;;;;Y;;;;;
+2986;RIGHT WHITE PARENTHESIS;Pe;0;ON;;;;;Y;;;;;
+2987;Z NOTATION LEFT IMAGE BRACKET;Ps;0;ON;;;;;Y;;;;;
+2988;Z NOTATION RIGHT IMAGE BRACKET;Pe;0;ON;;;;;Y;;;;;
+2989;Z NOTATION LEFT BINDING BRACKET;Ps;0;ON;;;;;Y;;;;;
+298A;Z NOTATION RIGHT BINDING BRACKET;Pe;0;ON;;;;;Y;;;;;
+298B;LEFT SQUARE BRACKET WITH UNDERBAR;Ps;0;ON;;;;;Y;;;;;
+298C;RIGHT SQUARE BRACKET WITH UNDERBAR;Pe;0;ON;;;;;Y;;;;;
+298D;LEFT SQUARE BRACKET WITH TICK IN TOP CORNER;Ps;0;ON;;;;;Y;;;;;
+298E;RIGHT SQUARE BRACKET WITH TICK IN BOTTOM CORNER;Pe;0;ON;;;;;Y;;;;;
+298F;LEFT SQUARE BRACKET WITH TICK IN BOTTOM CORNER;Ps;0;ON;;;;;Y;;;;;
+2990;RIGHT SQUARE BRACKET WITH TICK IN TOP CORNER;Pe;0;ON;;;;;Y;;;;;
+2991;LEFT ANGLE BRACKET WITH DOT;Ps;0;ON;;;;;Y;;;;;
+2992;RIGHT ANGLE BRACKET WITH DOT;Pe;0;ON;;;;;Y;;;;;
+2993;LEFT ARC LESS-THAN BRACKET;Ps;0;ON;;;;;Y;;;;;
+2994;RIGHT ARC GREATER-THAN BRACKET;Pe;0;ON;;;;;Y;;;;;
+2995;DOUBLE LEFT ARC GREATER-THAN BRACKET;Ps;0;ON;;;;;Y;;;;;
+2996;DOUBLE RIGHT ARC LESS-THAN BRACKET;Pe;0;ON;;;;;Y;;;;;
+2997;LEFT BLACK TORTOISE SHELL BRACKET;Ps;0;ON;;;;;Y;;;;;
+2998;RIGHT BLACK TORTOISE SHELL BRACKET;Pe;0;ON;;;;;Y;;;;;
+2999;DOTTED FENCE;Sm;0;ON;;;;;N;;;;;
+299A;VERTICAL ZIGZAG LINE;Sm;0;ON;;;;;N;;;;;
+299B;MEASURED ANGLE OPENING LEFT;Sm;0;ON;;;;;Y;;;;;
+299C;RIGHT ANGLE VARIANT WITH SQUARE;Sm;0;ON;;;;;Y;;;;;
+299D;MEASURED RIGHT ANGLE WITH DOT;Sm;0;ON;;;;;Y;;;;;
+299E;ANGLE WITH S INSIDE;Sm;0;ON;;;;;Y;;;;;
+299F;ACUTE ANGLE;Sm;0;ON;;;;;Y;;;;;
+29A0;SPHERICAL ANGLE OPENING LEFT;Sm;0;ON;;;;;Y;;;;;
+29A1;SPHERICAL ANGLE OPENING UP;Sm;0;ON;;;;;Y;;;;;
+29A2;TURNED ANGLE;Sm;0;ON;;;;;Y;;;;;
+29A3;REVERSED ANGLE;Sm;0;ON;;;;;Y;;;;;
+29A4;ANGLE WITH UNDERBAR;Sm;0;ON;;;;;Y;;;;;
+29A5;REVERSED ANGLE WITH UNDERBAR;Sm;0;ON;;;;;Y;;;;;
+29A6;OBLIQUE ANGLE OPENING UP;Sm;0;ON;;;;;Y;;;;;
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+29A8;MEASURED ANGLE WITH OPEN ARM ENDING IN ARROW POINTING UP AND RIGHT;Sm;0;ON;;;;;Y;;;;;
+29A9;MEASURED ANGLE WITH OPEN ARM ENDING IN ARROW POINTING UP AND LEFT;Sm;0;ON;;;;;Y;;;;;
+29AA;MEASURED ANGLE WITH OPEN ARM ENDING IN ARROW POINTING DOWN AND RIGHT;Sm;0;ON;;;;;Y;;;;;
+29AB;MEASURED ANGLE WITH OPEN ARM ENDING IN ARROW POINTING DOWN AND LEFT;Sm;0;ON;;;;;Y;;;;;
+29AC;MEASURED ANGLE WITH OPEN ARM ENDING IN ARROW POINTING RIGHT AND UP;Sm;0;ON;;;;;Y;;;;;
+29AD;MEASURED ANGLE WITH OPEN ARM ENDING IN ARROW POINTING LEFT AND UP;Sm;0;ON;;;;;Y;;;;;
+29AE;MEASURED ANGLE WITH OPEN ARM ENDING IN ARROW POINTING RIGHT AND DOWN;Sm;0;ON;;;;;Y;;;;;
+29AF;MEASURED ANGLE WITH OPEN ARM ENDING IN ARROW POINTING LEFT AND DOWN;Sm;0;ON;;;;;Y;;;;;
+29B0;REVERSED EMPTY SET;Sm;0;ON;;;;;N;;;;;
+29B1;EMPTY SET WITH OVERBAR;Sm;0;ON;;;;;N;;;;;
+29B2;EMPTY SET WITH SMALL CIRCLE ABOVE;Sm;0;ON;;;;;N;;;;;
+29B3;EMPTY SET WITH RIGHT ARROW ABOVE;Sm;0;ON;;;;;N;;;;;
+29B4;EMPTY SET WITH LEFT ARROW ABOVE;Sm;0;ON;;;;;N;;;;;
+29B5;CIRCLE WITH HORIZONTAL BAR;Sm;0;ON;;;;;N;;;;;
+29B6;CIRCLED VERTICAL BAR;Sm;0;ON;;;;;N;;;;;
+29B7;CIRCLED PARALLEL;Sm;0;ON;;;;;N;;;;;
+29B8;CIRCLED REVERSE SOLIDUS;Sm;0;ON;;;;;Y;;;;;
+29B9;CIRCLED PERPENDICULAR;Sm;0;ON;;;;;N;;;;;
+29BA;CIRCLE DIVIDED BY HORIZONTAL BAR AND TOP HALF DIVIDED BY VERTICAL BAR;Sm;0;ON;;;;;N;;;;;
+29BB;CIRCLE WITH SUPERIMPOSED X;Sm;0;ON;;;;;N;;;;;
+29BC;CIRCLED ANTICLOCKWISE-ROTATED DIVISION SIGN;Sm;0;ON;;;;;N;;;;;
+29BD;UP ARROW THROUGH CIRCLE;Sm;0;ON;;;;;N;;;;;
+29BE;CIRCLED WHITE BULLET;Sm;0;ON;;;;;N;;;;;
+29BF;CIRCLED BULLET;Sm;0;ON;;;;;N;;;;;
+29C0;CIRCLED LESS-THAN;Sm;0;ON;;;;;Y;;;;;
+29C1;CIRCLED GREATER-THAN;Sm;0;ON;;;;;Y;;;;;
+29C2;CIRCLE WITH SMALL CIRCLE TO THE RIGHT;Sm;0;ON;;;;;Y;;;;;
+29C3;CIRCLE WITH TWO HORIZONTAL STROKES TO THE RIGHT;Sm;0;ON;;;;;Y;;;;;
+29C4;SQUARED RISING DIAGONAL SLASH;Sm;0;ON;;;;;Y;;;;;
+29C5;SQUARED FALLING DIAGONAL SLASH;Sm;0;ON;;;;;Y;;;;;
+29C6;SQUARED ASTERISK;Sm;0;ON;;;;;N;;;;;
+29C7;SQUARED SMALL CIRCLE;Sm;0;ON;;;;;N;;;;;
+29C8;SQUARED SQUARE;Sm;0;ON;;;;;N;;;;;
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+29CA;TRIANGLE WITH DOT ABOVE;Sm;0;ON;;;;;N;;;;;
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+29CC;S IN TRIANGLE;Sm;0;ON;;;;;N;;;;;
+29CD;TRIANGLE WITH SERIFS AT BOTTOM;Sm;0;ON;;;;;N;;;;;
+29CE;RIGHT TRIANGLE ABOVE LEFT TRIANGLE;Sm;0;ON;;;;;Y;;;;;
+29CF;LEFT TRIANGLE BESIDE VERTICAL BAR;Sm;0;ON;;;;;Y;;;;;
+29D0;VERTICAL BAR BESIDE RIGHT TRIANGLE;Sm;0;ON;;;;;Y;;;;;
+29D1;BOWTIE WITH LEFT HALF BLACK;Sm;0;ON;;;;;Y;;;;;
+29D2;BOWTIE WITH RIGHT HALF BLACK;Sm;0;ON;;;;;Y;;;;;
+29D3;BLACK BOWTIE;Sm;0;ON;;;;;N;;;;;
+29D4;TIMES WITH LEFT HALF BLACK;Sm;0;ON;;;;;Y;;;;;
+29D5;TIMES WITH RIGHT HALF BLACK;Sm;0;ON;;;;;Y;;;;;
+29D6;WHITE HOURGLASS;Sm;0;ON;;;;;N;;;;;
+29D7;BLACK HOURGLASS;Sm;0;ON;;;;;N;;;;;
+29D8;LEFT WIGGLY FENCE;Ps;0;ON;;;;;Y;;;;;
+29D9;RIGHT WIGGLY FENCE;Pe;0;ON;;;;;Y;;;;;
+29DA;LEFT DOUBLE WIGGLY FENCE;Ps;0;ON;;;;;Y;;;;;
+29DB;RIGHT DOUBLE WIGGLY FENCE;Pe;0;ON;;;;;Y;;;;;
+29DC;INCOMPLETE INFINITY;Sm;0;ON;;;;;Y;;;;;
+29DD;TIE OVER INFINITY;Sm;0;ON;;;;;N;;;;;
+29DE;INFINITY NEGATED WITH VERTICAL BAR;Sm;0;ON;;;;;N;;;;;
+29DF;DOUBLE-ENDED MULTIMAP;Sm;0;ON;;;;;N;;;;;
+29E0;SQUARE WITH CONTOURED OUTLINE;Sm;0;ON;;;;;N;;;;;
+29E1;INCREASES AS;Sm;0;ON;;;;;Y;;;;;
+29E2;SHUFFLE PRODUCT;Sm;0;ON;;;;;N;;;;;
+29E3;EQUALS SIGN AND SLANTED PARALLEL;Sm;0;ON;;;;;Y;;;;;
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+29E5;IDENTICAL TO AND SLANTED PARALLEL;Sm;0;ON;;;;;Y;;;;;
+29E6;GLEICH STARK;Sm;0;ON;;;;;N;;;;;
+29E7;THERMODYNAMIC;Sm;0;ON;;;;;N;;;;;
+29E8;DOWN-POINTING TRIANGLE WITH LEFT HALF BLACK;Sm;0;ON;;;;;Y;;;;;
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+29EA;BLACK DIAMOND WITH DOWN ARROW;Sm;0;ON;;;;;N;;;;;
+29EB;BLACK LOZENGE;Sm;0;ON;;;;;N;;;;;
+29EC;WHITE CIRCLE WITH DOWN ARROW;Sm;0;ON;;;;;N;;;;;
+29ED;BLACK CIRCLE WITH DOWN ARROW;Sm;0;ON;;;;;N;;;;;
+29EE;ERROR-BARRED WHITE SQUARE;Sm;0;ON;;;;;N;;;;;
+29EF;ERROR-BARRED BLACK SQUARE;Sm;0;ON;;;;;N;;;;;
+29F0;ERROR-BARRED WHITE DIAMOND;Sm;0;ON;;;;;N;;;;;
+29F1;ERROR-BARRED BLACK DIAMOND;Sm;0;ON;;;;;N;;;;;
+29F2;ERROR-BARRED WHITE CIRCLE;Sm;0;ON;;;;;N;;;;;
+29F3;ERROR-BARRED BLACK CIRCLE;Sm;0;ON;;;;;N;;;;;
+29F4;RULE-DELAYED;Sm;0;ON;;;;;Y;;;;;
+29F5;REVERSE SOLIDUS OPERATOR;Sm;0;ON;;;;;Y;;;;;
+29F6;SOLIDUS WITH OVERBAR;Sm;0;ON;;;;;Y;;;;;
+29F7;REVERSE SOLIDUS WITH HORIZONTAL STROKE;Sm;0;ON;;;;;Y;;;;;
+29F8;BIG SOLIDUS;Sm;0;ON;;;;;Y;;;;;
+29F9;BIG REVERSE SOLIDUS;Sm;0;ON;;;;;Y;;;;;
+29FA;DOUBLE PLUS;Sm;0;ON;;;;;N;;;;;
+29FB;TRIPLE PLUS;Sm;0;ON;;;;;N;;;;;
+29FC;LEFT-POINTING CURVED ANGLE BRACKET;Ps;0;ON;;;;;Y;;;;;
+29FD;RIGHT-POINTING CURVED ANGLE BRACKET;Pe;0;ON;;;;;Y;;;;;
+29FE;TINY;Sm;0;ON;;;;;N;;;;;
+29FF;MINY;Sm;0;ON;;;;;N;;;;;
+2A00;N-ARY CIRCLED DOT OPERATOR;Sm;0;ON;;;;;N;;;;;
+2A01;N-ARY CIRCLED PLUS OPERATOR;Sm;0;ON;;;;;N;;;;;
+2A02;N-ARY CIRCLED TIMES OPERATOR;Sm;0;ON;;;;;N;;;;;
+2A03;N-ARY UNION OPERATOR WITH DOT;Sm;0;ON;;;;;N;;;;;
+2A04;N-ARY UNION OPERATOR WITH PLUS;Sm;0;ON;;;;;N;;;;;
+2A05;N-ARY SQUARE INTERSECTION OPERATOR;Sm;0;ON;;;;;N;;;;;
+2A06;N-ARY SQUARE UNION OPERATOR;Sm;0;ON;;;;;N;;;;;
+2A07;TWO LOGICAL AND OPERATOR;Sm;0;ON;;;;;N;;;;;
+2A08;TWO LOGICAL OR OPERATOR;Sm;0;ON;;;;;N;;;;;
+2A09;N-ARY TIMES OPERATOR;Sm;0;ON;;;;;N;;;;;
+2A0A;MODULO TWO SUM;Sm;0;ON;;;;;Y;;;;;
+2A0B;SUMMATION WITH INTEGRAL;Sm;0;ON;;;;;Y;;;;;
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+2A0D;FINITE PART INTEGRAL;Sm;0;ON;;;;;Y;;;;;
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+2A0F;INTEGRAL AVERAGE WITH SLASH;Sm;0;ON;;;;;Y;;;;;
+2A10;CIRCULATION FUNCTION;Sm;0;ON;;;;;Y;;;;;
+2A11;ANTICLOCKWISE INTEGRATION;Sm;0;ON;;;;;Y;;;;;
+2A12;LINE INTEGRATION WITH RECTANGULAR PATH AROUND POLE;Sm;0;ON;;;;;Y;;;;;
+2A13;LINE INTEGRATION WITH SEMICIRCULAR PATH AROUND POLE;Sm;0;ON;;;;;Y;;;;;
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+2A15;INTEGRAL AROUND A POINT OPERATOR;Sm;0;ON;;;;;Y;;;;;
+2A16;QUATERNION INTEGRAL OPERATOR;Sm;0;ON;;;;;Y;;;;;
+2A17;INTEGRAL WITH LEFTWARDS ARROW WITH HOOK;Sm;0;ON;;;;;Y;;;;;
+2A18;INTEGRAL WITH TIMES SIGN;Sm;0;ON;;;;;Y;;;;;
+2A19;INTEGRAL WITH INTERSECTION;Sm;0;ON;;;;;Y;;;;;
+2A1A;INTEGRAL WITH UNION;Sm;0;ON;;;;;Y;;;;;
+2A1B;INTEGRAL WITH OVERBAR;Sm;0;ON;;;;;Y;;;;;
+2A1C;INTEGRAL WITH UNDERBAR;Sm;0;ON;;;;;Y;;;;;
+2A1D;JOIN;Sm;0;ON;;;;;N;;;;;
+2A1E;LARGE LEFT TRIANGLE OPERATOR;Sm;0;ON;;;;;Y;;;;;
+2A1F;Z NOTATION SCHEMA COMPOSITION;Sm;0;ON;;;;;Y;;;;;
+2A20;Z NOTATION SCHEMA PIPING;Sm;0;ON;;;;;Y;;;;;
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+2A22;PLUS SIGN WITH SMALL CIRCLE ABOVE;Sm;0;ON;;;;;N;;;;;
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+2A26;PLUS SIGN WITH TILDE BELOW;Sm;0;ON;;;;;Y;;;;;
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+2A2D;PLUS SIGN IN LEFT HALF CIRCLE;Sm;0;ON;;;;;Y;;;;;
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+2A2F;VECTOR OR CROSS PRODUCT;Sm;0;ON;;;;;N;;;;;
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+2A32;SEMIDIRECT PRODUCT WITH BOTTOM CLOSED;Sm;0;ON;;;;;N;;;;;
+2A33;SMASH PRODUCT;Sm;0;ON;;;;;N;;;;;
+2A34;MULTIPLICATION SIGN IN LEFT HALF CIRCLE;Sm;0;ON;;;;;Y;;;;;
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+2A37;MULTIPLICATION SIGN IN DOUBLE CIRCLE;Sm;0;ON;;;;;N;;;;;
+2A38;CIRCLED DIVISION SIGN;Sm;0;ON;;;;;N;;;;;
+2A39;PLUS SIGN IN TRIANGLE;Sm;0;ON;;;;;N;;;;;
+2A3A;MINUS SIGN IN TRIANGLE;Sm;0;ON;;;;;N;;;;;
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+2A3C;INTERIOR PRODUCT;Sm;0;ON;;;;;Y;;;;;
+2A3D;RIGHTHAND INTERIOR PRODUCT;Sm;0;ON;;;;;Y;;;;;
+2A3E;Z NOTATION RELATIONAL COMPOSITION;Sm;0;ON;;;;;Y;;;;;
+2A3F;AMALGAMATION OR COPRODUCT;Sm;0;ON;;;;;N;;;;;
+2A40;INTERSECTION WITH DOT;Sm;0;ON;;;;;N;;;;;
+2A41;UNION WITH MINUS SIGN;Sm;0;ON;;;;;N;;;;;
+2A42;UNION WITH OVERBAR;Sm;0;ON;;;;;N;;;;;
+2A43;INTERSECTION WITH OVERBAR;Sm;0;ON;;;;;N;;;;;
+2A44;INTERSECTION WITH LOGICAL AND;Sm;0;ON;;;;;N;;;;;
+2A45;UNION WITH LOGICAL OR;Sm;0;ON;;;;;N;;;;;
+2A46;UNION ABOVE INTERSECTION;Sm;0;ON;;;;;N;;;;;
+2A47;INTERSECTION ABOVE UNION;Sm;0;ON;;;;;N;;;;;
+2A48;UNION ABOVE BAR ABOVE INTERSECTION;Sm;0;ON;;;;;N;;;;;
+2A49;INTERSECTION ABOVE BAR ABOVE UNION;Sm;0;ON;;;;;N;;;;;
+2A4A;UNION BESIDE AND JOINED WITH UNION;Sm;0;ON;;;;;N;;;;;
+2A4B;INTERSECTION BESIDE AND JOINED WITH INTERSECTION;Sm;0;ON;;;;;N;;;;;
+2A4C;CLOSED UNION WITH SERIFS;Sm;0;ON;;;;;N;;;;;
+2A4D;CLOSED INTERSECTION WITH SERIFS;Sm;0;ON;;;;;N;;;;;
+2A4E;DOUBLE SQUARE INTERSECTION;Sm;0;ON;;;;;N;;;;;
+2A4F;DOUBLE SQUARE UNION;Sm;0;ON;;;;;N;;;;;
+2A50;CLOSED UNION WITH SERIFS AND SMASH PRODUCT;Sm;0;ON;;;;;N;;;;;
+2A51;LOGICAL AND WITH DOT ABOVE;Sm;0;ON;;;;;N;;;;;
+2A52;LOGICAL OR WITH DOT ABOVE;Sm;0;ON;;;;;N;;;;;
+2A53;DOUBLE LOGICAL AND;Sm;0;ON;;;;;N;;;;;
+2A54;DOUBLE LOGICAL OR;Sm;0;ON;;;;;N;;;;;
+2A55;TWO INTERSECTING LOGICAL AND;Sm;0;ON;;;;;N;;;;;
+2A56;TWO INTERSECTING LOGICAL OR;Sm;0;ON;;;;;N;;;;;
+2A57;SLOPING LARGE OR;Sm;0;ON;;;;;Y;;;;;
+2A58;SLOPING LARGE AND;Sm;0;ON;;;;;Y;;;;;
+2A59;LOGICAL OR OVERLAPPING LOGICAL AND;Sm;0;ON;;;;;N;;;;;
+2A5A;LOGICAL AND WITH MIDDLE STEM;Sm;0;ON;;;;;N;;;;;
+2A5B;LOGICAL OR WITH MIDDLE STEM;Sm;0;ON;;;;;N;;;;;
+2A5C;LOGICAL AND WITH HORIZONTAL DASH;Sm;0;ON;;;;;N;;;;;
+2A5D;LOGICAL OR WITH HORIZONTAL DASH;Sm;0;ON;;;;;N;;;;;
+2A5E;LOGICAL AND WITH DOUBLE OVERBAR;Sm;0;ON;;;;;N;;;;;
+2A5F;LOGICAL AND WITH UNDERBAR;Sm;0;ON;;;;;N;;;;;
+2A60;LOGICAL AND WITH DOUBLE UNDERBAR;Sm;0;ON;;;;;N;;;;;
+2A61;SMALL VEE WITH UNDERBAR;Sm;0;ON;;;;;N;;;;;
+2A62;LOGICAL OR WITH DOUBLE OVERBAR;Sm;0;ON;;;;;N;;;;;
+2A63;LOGICAL OR WITH DOUBLE UNDERBAR;Sm;0;ON;;;;;N;;;;;
+2A64;Z NOTATION DOMAIN ANTIRESTRICTION;Sm;0;ON;;;;;Y;;;;;
+2A65;Z NOTATION RANGE ANTIRESTRICTION;Sm;0;ON;;;;;Y;;;;;
+2A66;EQUALS SIGN WITH DOT BELOW;Sm;0;ON;;;;;N;;;;;
+2A67;IDENTICAL WITH DOT ABOVE;Sm;0;ON;;;;;N;;;;;
+2A68;TRIPLE HORIZONTAL BAR WITH DOUBLE VERTICAL STROKE;Sm;0;ON;;;;;N;;;;;
+2A69;TRIPLE HORIZONTAL BAR WITH TRIPLE VERTICAL STROKE;Sm;0;ON;;;;;N;;;;;
+2A6A;TILDE OPERATOR WITH DOT ABOVE;Sm;0;ON;;;;;Y;;;;;
+2A6B;TILDE OPERATOR WITH RISING DOTS;Sm;0;ON;;;;;Y;;;;;
+2A6C;SIMILAR MINUS SIMILAR;Sm;0;ON;;;;;Y;;;;;
+2A6D;CONGRUENT WITH DOT ABOVE;Sm;0;ON;;;;;Y;;;;;
+2A6E;EQUALS WITH ASTERISK;Sm;0;ON;;;;;N;;;;;
+2A6F;ALMOST EQUAL TO WITH CIRCUMFLEX ACCENT;Sm;0;ON;;;;;Y;;;;;
+2A70;APPROXIMATELY EQUAL OR EQUAL TO;Sm;0;ON;;;;;Y;;;;;
+2A71;EQUALS SIGN ABOVE PLUS SIGN;Sm;0;ON;;;;;N;;;;;
+2A72;PLUS SIGN ABOVE EQUALS SIGN;Sm;0;ON;;;;;N;;;;;
+2A73;EQUALS SIGN ABOVE TILDE OPERATOR;Sm;0;ON;;;;;Y;;;;;
+2A74;DOUBLE COLON EQUAL;Sm;0;ON;<compat> 003A 003A 003D;;;;Y;;;;;
+2A75;TWO CONSECUTIVE EQUALS SIGNS;Sm;0;ON;<compat> 003D 003D;;;;N;;;;;
+2A76;THREE CONSECUTIVE EQUALS SIGNS;Sm;0;ON;<compat> 003D 003D 003D;;;;N;;;;;
+2A77;EQUALS SIGN WITH TWO DOTS ABOVE AND TWO DOTS BELOW;Sm;0;ON;;;;;N;;;;;
+2A78;EQUIVALENT WITH FOUR DOTS ABOVE;Sm;0;ON;;;;;N;;;;;
+2A79;LESS-THAN WITH CIRCLE INSIDE;Sm;0;ON;;;;;Y;;;;;
+2A7A;GREATER-THAN WITH CIRCLE INSIDE;Sm;0;ON;;;;;Y;;;;;
+2A7B;LESS-THAN WITH QUESTION MARK ABOVE;Sm;0;ON;;;;;Y;;;;;
+2A7C;GREATER-THAN WITH QUESTION MARK ABOVE;Sm;0;ON;;;;;Y;;;;;
+2A7D;LESS-THAN OR SLANTED EQUAL TO;Sm;0;ON;;;;;Y;;;;;
+2A7E;GREATER-THAN OR SLANTED EQUAL TO;Sm;0;ON;;;;;Y;;;;;
+2A7F;LESS-THAN OR SLANTED EQUAL TO WITH DOT INSIDE;Sm;0;ON;;;;;Y;;;;;
+2A80;GREATER-THAN OR SLANTED EQUAL TO WITH DOT INSIDE;Sm;0;ON;;;;;Y;;;;;
+2A81;LESS-THAN OR SLANTED EQUAL TO WITH DOT ABOVE;Sm;0;ON;;;;;Y;;;;;
+2A82;GREATER-THAN OR SLANTED EQUAL TO WITH DOT ABOVE;Sm;0;ON;;;;;Y;;;;;
+2A83;LESS-THAN OR SLANTED EQUAL TO WITH DOT ABOVE RIGHT;Sm;0;ON;;;;;Y;;;;;
+2A84;GREATER-THAN OR SLANTED EQUAL TO WITH DOT ABOVE LEFT;Sm;0;ON;;;;;Y;;;;;
+2A85;LESS-THAN OR APPROXIMATE;Sm;0;ON;;;;;Y;;;;;
+2A86;GREATER-THAN OR APPROXIMATE;Sm;0;ON;;;;;Y;;;;;
+2A87;LESS-THAN AND SINGLE-LINE NOT EQUAL TO;Sm;0;ON;;;;;Y;;;;;
+2A88;GREATER-THAN AND SINGLE-LINE NOT EQUAL TO;Sm;0;ON;;;;;Y;;;;;
+2A89;LESS-THAN AND NOT APPROXIMATE;Sm;0;ON;;;;;Y;;;;;
+2A8A;GREATER-THAN AND NOT APPROXIMATE;Sm;0;ON;;;;;Y;;;;;
+2A8B;LESS-THAN ABOVE DOUBLE-LINE EQUAL ABOVE GREATER-THAN;Sm;0;ON;;;;;Y;;;;;
+2A8C;GREATER-THAN ABOVE DOUBLE-LINE EQUAL ABOVE LESS-THAN;Sm;0;ON;;;;;Y;;;;;
+2A8D;LESS-THAN ABOVE SIMILAR OR EQUAL;Sm;0;ON;;;;;Y;;;;;
+2A8E;GREATER-THAN ABOVE SIMILAR OR EQUAL;Sm;0;ON;;;;;Y;;;;;
+2A8F;LESS-THAN ABOVE SIMILAR ABOVE GREATER-THAN;Sm;0;ON;;;;;Y;;;;;
+2A90;GREATER-THAN ABOVE SIMILAR ABOVE LESS-THAN;Sm;0;ON;;;;;Y;;;;;
+2A91;LESS-THAN ABOVE GREATER-THAN ABOVE DOUBLE-LINE EQUAL;Sm;0;ON;;;;;Y;;;;;
+2A92;GREATER-THAN ABOVE LESS-THAN ABOVE DOUBLE-LINE EQUAL;Sm;0;ON;;;;;Y;;;;;
+2A93;LESS-THAN ABOVE SLANTED EQUAL ABOVE GREATER-THAN ABOVE SLANTED EQUAL;Sm;0;ON;;;;;Y;;;;;
+2A94;GREATER-THAN ABOVE SLANTED EQUAL ABOVE LESS-THAN ABOVE SLANTED EQUAL;Sm;0;ON;;;;;Y;;;;;
+2A95;SLANTED EQUAL TO OR LESS-THAN;Sm;0;ON;;;;;Y;;;;;
+2A96;SLANTED EQUAL TO OR GREATER-THAN;Sm;0;ON;;;;;Y;;;;;
+2A97;SLANTED EQUAL TO OR LESS-THAN WITH DOT INSIDE;Sm;0;ON;;;;;Y;;;;;
+2A98;SLANTED EQUAL TO OR GREATER-THAN WITH DOT INSIDE;Sm;0;ON;;;;;Y;;;;;
+2A99;DOUBLE-LINE EQUAL TO OR LESS-THAN;Sm;0;ON;;;;;Y;;;;;
+2A9A;DOUBLE-LINE EQUAL TO OR GREATER-THAN;Sm;0;ON;;;;;Y;;;;;
+2A9B;DOUBLE-LINE SLANTED EQUAL TO OR LESS-THAN;Sm;0;ON;;;;;Y;;;;;
+2A9C;DOUBLE-LINE SLANTED EQUAL TO OR GREATER-THAN;Sm;0;ON;;;;;Y;;;;;
+2A9D;SIMILAR OR LESS-THAN;Sm;0;ON;;;;;Y;;;;;
+2A9E;SIMILAR OR GREATER-THAN;Sm;0;ON;;;;;Y;;;;;
+2A9F;SIMILAR ABOVE LESS-THAN ABOVE EQUALS SIGN;Sm;0;ON;;;;;Y;;;;;
+2AA0;SIMILAR ABOVE GREATER-THAN ABOVE EQUALS SIGN;Sm;0;ON;;;;;Y;;;;;
+2AA1;DOUBLE NESTED LESS-THAN;Sm;0;ON;;;;;Y;;;;;
+2AA2;DOUBLE NESTED GREATER-THAN;Sm;0;ON;;;;;Y;;;;;
+2AA3;DOUBLE NESTED LESS-THAN WITH UNDERBAR;Sm;0;ON;;;;;Y;;;;;
+2AA4;GREATER-THAN OVERLAPPING LESS-THAN;Sm;0;ON;;;;;N;;;;;
+2AA5;GREATER-THAN BESIDE LESS-THAN;Sm;0;ON;;;;;N;;;;;
+2AA6;LESS-THAN CLOSED BY CURVE;Sm;0;ON;;;;;Y;;;;;
+2AA7;GREATER-THAN CLOSED BY CURVE;Sm;0;ON;;;;;Y;;;;;
+2AA8;LESS-THAN CLOSED BY CURVE ABOVE SLANTED EQUAL;Sm;0;ON;;;;;Y;;;;;
+2AA9;GREATER-THAN CLOSED BY CURVE ABOVE SLANTED EQUAL;Sm;0;ON;;;;;Y;;;;;
+2AAA;SMALLER THAN;Sm;0;ON;;;;;Y;;;;;
+2AAB;LARGER THAN;Sm;0;ON;;;;;Y;;;;;
+2AAC;SMALLER THAN OR EQUAL TO;Sm;0;ON;;;;;Y;;;;;
+2AAD;LARGER THAN OR EQUAL TO;Sm;0;ON;;;;;Y;;;;;
+2AAE;EQUALS SIGN WITH BUMPY ABOVE;Sm;0;ON;;;;;N;;;;;
+2AAF;PRECEDES ABOVE SINGLE-LINE EQUALS SIGN;Sm;0;ON;;;;;Y;;;;;
+2AB0;SUCCEEDS ABOVE SINGLE-LINE EQUALS SIGN;Sm;0;ON;;;;;Y;;;;;
+2AB1;PRECEDES ABOVE SINGLE-LINE NOT EQUAL TO;Sm;0;ON;;;;;Y;;;;;
+2AB2;SUCCEEDS ABOVE SINGLE-LINE NOT EQUAL TO;Sm;0;ON;;;;;Y;;;;;
+2AB3;PRECEDES ABOVE EQUALS SIGN;Sm;0;ON;;;;;Y;;;;;
+2AB4;SUCCEEDS ABOVE EQUALS SIGN;Sm;0;ON;;;;;Y;;;;;
+2AB5;PRECEDES ABOVE NOT EQUAL TO;Sm;0;ON;;;;;Y;;;;;
+2AB6;SUCCEEDS ABOVE NOT EQUAL TO;Sm;0;ON;;;;;Y;;;;;
+2AB7;PRECEDES ABOVE ALMOST EQUAL TO;Sm;0;ON;;;;;Y;;;;;
+2AB8;SUCCEEDS ABOVE ALMOST EQUAL TO;Sm;0;ON;;;;;Y;;;;;
+2AB9;PRECEDES ABOVE NOT ALMOST EQUAL TO;Sm;0;ON;;;;;Y;;;;;
+2ABA;SUCCEEDS ABOVE NOT ALMOST EQUAL TO;Sm;0;ON;;;;;Y;;;;;
+2ABB;DOUBLE PRECEDES;Sm;0;ON;;;;;Y;;;;;
+2ABC;DOUBLE SUCCEEDS;Sm;0;ON;;;;;Y;;;;;
+2ABD;SUBSET WITH DOT;Sm;0;ON;;;;;Y;;;;;
+2ABE;SUPERSET WITH DOT;Sm;0;ON;;;;;Y;;;;;
+2ABF;SUBSET WITH PLUS SIGN BELOW;Sm;0;ON;;;;;Y;;;;;
+2AC0;SUPERSET WITH PLUS SIGN BELOW;Sm;0;ON;;;;;Y;;;;;
+2AC1;SUBSET WITH MULTIPLICATION SIGN BELOW;Sm;0;ON;;;;;Y;;;;;
+2AC2;SUPERSET WITH MULTIPLICATION SIGN BELOW;Sm;0;ON;;;;;Y;;;;;
+2AC3;SUBSET OF OR EQUAL TO WITH DOT ABOVE;Sm;0;ON;;;;;Y;;;;;
+2AC4;SUPERSET OF OR EQUAL TO WITH DOT ABOVE;Sm;0;ON;;;;;Y;;;;;
+2AC5;SUBSET OF ABOVE EQUALS SIGN;Sm;0;ON;;;;;Y;;;;;
+2AC6;SUPERSET OF ABOVE EQUALS SIGN;Sm;0;ON;;;;;Y;;;;;
+2AC7;SUBSET OF ABOVE TILDE OPERATOR;Sm;0;ON;;;;;Y;;;;;
+2AC8;SUPERSET OF ABOVE TILDE OPERATOR;Sm;0;ON;;;;;Y;;;;;
+2AC9;SUBSET OF ABOVE ALMOST EQUAL TO;Sm;0;ON;;;;;Y;;;;;
+2ACA;SUPERSET OF ABOVE ALMOST EQUAL TO;Sm;0;ON;;;;;Y;;;;;
+2ACB;SUBSET OF ABOVE NOT EQUAL TO;Sm;0;ON;;;;;Y;;;;;
+2ACC;SUPERSET OF ABOVE NOT EQUAL TO;Sm;0;ON;;;;;Y;;;;;
+2ACD;SQUARE LEFT OPEN BOX OPERATOR;Sm;0;ON;;;;;Y;;;;;
+2ACE;SQUARE RIGHT OPEN BOX OPERATOR;Sm;0;ON;;;;;Y;;;;;
+2ACF;CLOSED SUBSET;Sm;0;ON;;;;;Y;;;;;
+2AD0;CLOSED SUPERSET;Sm;0;ON;;;;;Y;;;;;
+2AD1;CLOSED SUBSET OR EQUAL TO;Sm;0;ON;;;;;Y;;;;;
+2AD2;CLOSED SUPERSET OR EQUAL TO;Sm;0;ON;;;;;Y;;;;;
+2AD3;SUBSET ABOVE SUPERSET;Sm;0;ON;;;;;Y;;;;;
+2AD4;SUPERSET ABOVE SUBSET;Sm;0;ON;;;;;Y;;;;;
+2AD5;SUBSET ABOVE SUBSET;Sm;0;ON;;;;;Y;;;;;
+2AD6;SUPERSET ABOVE SUPERSET;Sm;0;ON;;;;;Y;;;;;
+2AD7;SUPERSET BESIDE SUBSET;Sm;0;ON;;;;;N;;;;;
+2AD8;SUPERSET BESIDE AND JOINED BY DASH WITH SUBSET;Sm;0;ON;;;;;N;;;;;
+2AD9;ELEMENT OF OPENING DOWNWARDS;Sm;0;ON;;;;;N;;;;;
+2ADA;PITCHFORK WITH TEE TOP;Sm;0;ON;;;;;N;;;;;
+2ADB;TRANSVERSAL INTERSECTION;Sm;0;ON;;;;;N;;;;;
+2ADC;FORKING;Sm;0;ON;2ADD 0338;;;;Y;;;;;
+2ADD;NONFORKING;Sm;0;ON;;;;;N;;;;;
+2ADE;SHORT LEFT TACK;Sm;0;ON;;;;;Y;;;;;
+2ADF;SHORT DOWN TACK;Sm;0;ON;;;;;N;;;;;
+2AE0;SHORT UP TACK;Sm;0;ON;;;;;N;;;;;
+2AE1;PERPENDICULAR WITH S;Sm;0;ON;;;;;N;;;;;
+2AE2;VERTICAL BAR TRIPLE RIGHT TURNSTILE;Sm;0;ON;;;;;Y;;;;;
+2AE3;DOUBLE VERTICAL BAR LEFT TURNSTILE;Sm;0;ON;;;;;Y;;;;;
+2AE4;VERTICAL BAR DOUBLE LEFT TURNSTILE;Sm;0;ON;;;;;Y;;;;;
+2AE5;DOUBLE VERTICAL BAR DOUBLE LEFT TURNSTILE;Sm;0;ON;;;;;Y;;;;;
+2AE6;LONG DASH FROM LEFT MEMBER OF DOUBLE VERTICAL;Sm;0;ON;;;;;Y;;;;;
+2AE7;SHORT DOWN TACK WITH OVERBAR;Sm;0;ON;;;;;N;;;;;
+2AE8;SHORT UP TACK WITH UNDERBAR;Sm;0;ON;;;;;N;;;;;
+2AE9;SHORT UP TACK ABOVE SHORT DOWN TACK;Sm;0;ON;;;;;N;;;;;
+2AEA;DOUBLE DOWN TACK;Sm;0;ON;;;;;N;;;;;
+2AEB;DOUBLE UP TACK;Sm;0;ON;;;;;N;;;;;
+2AEC;DOUBLE STROKE NOT SIGN;Sm;0;ON;;;;;Y;;;;;
+2AED;REVERSED DOUBLE STROKE NOT SIGN;Sm;0;ON;;;;;Y;;;;;
+2AEE;DOES NOT DIVIDE WITH REVERSED NEGATION SLASH;Sm;0;ON;;;;;Y;;;;;
+2AEF;VERTICAL LINE WITH CIRCLE ABOVE;Sm;0;ON;;;;;N;;;;;
+2AF0;VERTICAL LINE WITH CIRCLE BELOW;Sm;0;ON;;;;;N;;;;;
+2AF1;DOWN TACK WITH CIRCLE BELOW;Sm;0;ON;;;;;N;;;;;
+2AF2;PARALLEL WITH HORIZONTAL STROKE;Sm;0;ON;;;;;N;;;;;
+2AF3;PARALLEL WITH TILDE OPERATOR;Sm;0;ON;;;;;Y;;;;;
+2AF4;TRIPLE VERTICAL BAR BINARY RELATION;Sm;0;ON;;;;;N;;;;;
+2AF5;TRIPLE VERTICAL BAR WITH HORIZONTAL STROKE;Sm;0;ON;;;;;N;;;;;
+2AF6;TRIPLE COLON OPERATOR;Sm;0;ON;;;;;N;;;;;
+2AF7;TRIPLE NESTED LESS-THAN;Sm;0;ON;;;;;Y;;;;;
+2AF8;TRIPLE NESTED GREATER-THAN;Sm;0;ON;;;;;Y;;;;;
+2AF9;DOUBLE-LINE SLANTED LESS-THAN OR EQUAL TO;Sm;0;ON;;;;;Y;;;;;
+2AFA;DOUBLE-LINE SLANTED GREATER-THAN OR EQUAL TO;Sm;0;ON;;;;;Y;;;;;
+2AFB;TRIPLE SOLIDUS BINARY RELATION;Sm;0;ON;;;;;Y;;;;;
+2AFC;LARGE TRIPLE VERTICAL BAR OPERATOR;Sm;0;ON;;;;;N;;;;;
+2AFD;DOUBLE SOLIDUS OPERATOR;Sm;0;ON;;;;;Y;;;;;
+2AFE;WHITE VERTICAL BAR;Sm;0;ON;;;;;N;;;;;
+2AFF;N-ARY WHITE VERTICAL BAR;Sm;0;ON;;;;;N;;;;;
+2B00;NORTH EAST WHITE ARROW;So;0;ON;;;;;N;;;;;
+2B01;NORTH WEST WHITE ARROW;So;0;ON;;;;;N;;;;;
+2B02;SOUTH EAST WHITE ARROW;So;0;ON;;;;;N;;;;;
+2B03;SOUTH WEST WHITE ARROW;So;0;ON;;;;;N;;;;;
+2B04;LEFT RIGHT WHITE ARROW;So;0;ON;;;;;N;;;;;
+2B05;LEFTWARDS BLACK ARROW;So;0;ON;;;;;N;;;;;
+2B06;UPWARDS BLACK ARROW;So;0;ON;;;;;N;;;;;
+2B07;DOWNWARDS BLACK ARROW;So;0;ON;;;;;N;;;;;
+2B08;NORTH EAST BLACK ARROW;So;0;ON;;;;;N;;;;;
+2B09;NORTH WEST BLACK ARROW;So;0;ON;;;;;N;;;;;
+2B0A;SOUTH EAST BLACK ARROW;So;0;ON;;;;;N;;;;;
+2B0B;SOUTH WEST BLACK ARROW;So;0;ON;;;;;N;;;;;
+2B0C;LEFT RIGHT BLACK ARROW;So;0;ON;;;;;N;;;;;
+2B0D;UP DOWN BLACK ARROW;So;0;ON;;;;;N;;;;;
+2B0E;RIGHTWARDS ARROW WITH TIP DOWNWARDS;So;0;ON;;;;;N;;;;;
+2B0F;RIGHTWARDS ARROW WITH TIP UPWARDS;So;0;ON;;;;;N;;;;;
+2B10;LEFTWARDS ARROW WITH TIP DOWNWARDS;So;0;ON;;;;;N;;;;;
+2B11;LEFTWARDS ARROW WITH TIP UPWARDS;So;0;ON;;;;;N;;;;;
+2B12;SQUARE WITH TOP HALF BLACK;So;0;ON;;;;;N;;;;;
+2B13;SQUARE WITH BOTTOM HALF BLACK;So;0;ON;;;;;N;;;;;
+2B14;SQUARE WITH UPPER RIGHT DIAGONAL HALF BLACK;So;0;ON;;;;;N;;;;;
+2B15;SQUARE WITH LOWER LEFT DIAGONAL HALF BLACK;So;0;ON;;;;;N;;;;;
+2B16;DIAMOND WITH LEFT HALF BLACK;So;0;ON;;;;;N;;;;;
+2B17;DIAMOND WITH RIGHT HALF BLACK;So;0;ON;;;;;N;;;;;
+2B18;DIAMOND WITH TOP HALF BLACK;So;0;ON;;;;;N;;;;;
+2B19;DIAMOND WITH BOTTOM HALF BLACK;So;0;ON;;;;;N;;;;;
+2B1A;DOTTED SQUARE;So;0;ON;;;;;N;;;;;
+2B1B;BLACK LARGE SQUARE;So;0;ON;;;;;N;;;;;
+2B1C;WHITE LARGE SQUARE;So;0;ON;;;;;N;;;;;
+2B1D;BLACK VERY SMALL SQUARE;So;0;ON;;;;;N;;;;;
+2B1E;WHITE VERY SMALL SQUARE;So;0;ON;;;;;N;;;;;
+2B1F;BLACK PENTAGON;So;0;ON;;;;;N;;;;;
+2B20;WHITE PENTAGON;So;0;ON;;;;;N;;;;;
+2B21;WHITE HEXAGON;So;0;ON;;;;;N;;;;;
+2B22;BLACK HEXAGON;So;0;ON;;;;;N;;;;;
+2B23;HORIZONTAL BLACK HEXAGON;So;0;ON;;;;;N;;;;;
+2B24;BLACK LARGE CIRCLE;So;0;ON;;;;;N;;;;;
+2B25;BLACK MEDIUM DIAMOND;So;0;ON;;;;;N;;;;;
+2B26;WHITE MEDIUM DIAMOND;So;0;ON;;;;;N;;;;;
+2B27;BLACK MEDIUM LOZENGE;So;0;ON;;;;;N;;;;;
+2B28;WHITE MEDIUM LOZENGE;So;0;ON;;;;;N;;;;;
+2B29;BLACK SMALL DIAMOND;So;0;ON;;;;;N;;;;;
+2B2A;BLACK SMALL LOZENGE;So;0;ON;;;;;N;;;;;
+2B2B;WHITE SMALL LOZENGE;So;0;ON;;;;;N;;;;;
+2B2C;BLACK HORIZONTAL ELLIPSE;So;0;ON;;;;;N;;;;;
+2B2D;WHITE HORIZONTAL ELLIPSE;So;0;ON;;;;;N;;;;;
+2B2E;BLACK VERTICAL ELLIPSE;So;0;ON;;;;;N;;;;;
+2B2F;WHITE VERTICAL ELLIPSE;So;0;ON;;;;;N;;;;;
+2B30;LEFT ARROW WITH SMALL CIRCLE;Sm;0;ON;;;;;N;;;;;
+2B31;THREE LEFTWARDS ARROWS;Sm;0;ON;;;;;N;;;;;
+2B32;LEFT ARROW WITH CIRCLED PLUS;Sm;0;ON;;;;;N;;;;;
+2B33;LONG LEFTWARDS SQUIGGLE ARROW;Sm;0;ON;;;;;N;;;;;
+2B34;LEFTWARDS TWO-HEADED ARROW WITH VERTICAL STROKE;Sm;0;ON;;;;;N;;;;;
+2B35;LEFTWARDS TWO-HEADED ARROW WITH DOUBLE VERTICAL STROKE;Sm;0;ON;;;;;N;;;;;
+2B36;LEFTWARDS TWO-HEADED ARROW FROM BAR;Sm;0;ON;;;;;N;;;;;
+2B37;LEFTWARDS TWO-HEADED TRIPLE DASH ARROW;Sm;0;ON;;;;;N;;;;;
+2B38;LEFTWARDS ARROW WITH DOTTED STEM;Sm;0;ON;;;;;N;;;;;
+2B39;LEFTWARDS ARROW WITH TAIL WITH VERTICAL STROKE;Sm;0;ON;;;;;N;;;;;
+2B3A;LEFTWARDS ARROW WITH TAIL WITH DOUBLE VERTICAL STROKE;Sm;0;ON;;;;;N;;;;;
+2B3B;LEFTWARDS TWO-HEADED ARROW WITH TAIL;Sm;0;ON;;;;;N;;;;;
+2B3C;LEFTWARDS TWO-HEADED ARROW WITH TAIL WITH VERTICAL STROKE;Sm;0;ON;;;;;N;;;;;
+2B3D;LEFTWARDS TWO-HEADED ARROW WITH TAIL WITH DOUBLE VERTICAL STROKE;Sm;0;ON;;;;;N;;;;;
+2B3E;LEFTWARDS ARROW THROUGH X;Sm;0;ON;;;;;N;;;;;
+2B3F;WAVE ARROW POINTING DIRECTLY LEFT;Sm;0;ON;;;;;N;;;;;
+2B40;EQUALS SIGN ABOVE LEFTWARDS ARROW;Sm;0;ON;;;;;N;;;;;
+2B41;REVERSE TILDE OPERATOR ABOVE LEFTWARDS ARROW;Sm;0;ON;;;;;N;;;;;
+2B42;LEFTWARDS ARROW ABOVE REVERSE ALMOST EQUAL TO;Sm;0;ON;;;;;N;;;;;
+2B43;RIGHTWARDS ARROW THROUGH GREATER-THAN;Sm;0;ON;;;;;N;;;;;
+2B44;RIGHTWARDS ARROW THROUGH SUPERSET;Sm;0;ON;;;;;N;;;;;
+2B45;LEFTWARDS QUADRUPLE ARROW;So;0;ON;;;;;N;;;;;
+2B46;RIGHTWARDS QUADRUPLE ARROW;So;0;ON;;;;;N;;;;;
+2B47;REVERSE TILDE OPERATOR ABOVE RIGHTWARDS ARROW;Sm;0;ON;;;;;N;;;;;
+2B48;RIGHTWARDS ARROW ABOVE REVERSE ALMOST EQUAL TO;Sm;0;ON;;;;;N;;;;;
+2B49;TILDE OPERATOR ABOVE LEFTWARDS ARROW;Sm;0;ON;;;;;N;;;;;
+2B4A;LEFTWARDS ARROW ABOVE ALMOST EQUAL TO;Sm;0;ON;;;;;N;;;;;
+2B4B;LEFTWARDS ARROW ABOVE REVERSE TILDE OPERATOR;Sm;0;ON;;;;;N;;;;;
+2B4C;RIGHTWARDS ARROW ABOVE REVERSE TILDE OPERATOR;Sm;0;ON;;;;;N;;;;;
+2B50;WHITE MEDIUM STAR;So;0;ON;;;;;N;;;;;
+2B51;BLACK SMALL STAR;So;0;ON;;;;;N;;;;;
+2B52;WHITE SMALL STAR;So;0;ON;;;;;N;;;;;
+2B53;BLACK RIGHT-POINTING PENTAGON;So;0;ON;;;;;N;;;;;
+2B54;WHITE RIGHT-POINTING PENTAGON;So;0;ON;;;;;N;;;;;
+2B55;HEAVY LARGE CIRCLE;So;0;ON;;;;;N;;;;;
+2B56;HEAVY OVAL WITH OVAL INSIDE;So;0;ON;;;;;N;;;;;
+2B57;HEAVY CIRCLE WITH CIRCLE INSIDE;So;0;ON;;;;;N;;;;;
+2B58;HEAVY CIRCLE;So;0;ON;;;;;N;;;;;
+2B59;HEAVY CIRCLED SALTIRE;So;0;ON;;;;;N;;;;;
+2C00;GLAGOLITIC CAPITAL LETTER AZU;Lu;0;L;;;;;N;;;;2C30;
+2C01;GLAGOLITIC CAPITAL LETTER BUKY;Lu;0;L;;;;;N;;;;2C31;
+2C02;GLAGOLITIC CAPITAL LETTER VEDE;Lu;0;L;;;;;N;;;;2C32;
+2C03;GLAGOLITIC CAPITAL LETTER GLAGOLI;Lu;0;L;;;;;N;;;;2C33;
+2C04;GLAGOLITIC CAPITAL LETTER DOBRO;Lu;0;L;;;;;N;;;;2C34;
+2C05;GLAGOLITIC CAPITAL LETTER YESTU;Lu;0;L;;;;;N;;;;2C35;
+2C06;GLAGOLITIC CAPITAL LETTER ZHIVETE;Lu;0;L;;;;;N;;;;2C36;
+2C07;GLAGOLITIC CAPITAL LETTER DZELO;Lu;0;L;;;;;N;;;;2C37;
+2C08;GLAGOLITIC CAPITAL LETTER ZEMLJA;Lu;0;L;;;;;N;;;;2C38;
+2C09;GLAGOLITIC CAPITAL LETTER IZHE;Lu;0;L;;;;;N;;;;2C39;
+2C0A;GLAGOLITIC CAPITAL LETTER INITIAL IZHE;Lu;0;L;;;;;N;;;;2C3A;
+2C0B;GLAGOLITIC CAPITAL LETTER I;Lu;0;L;;;;;N;;;;2C3B;
+2C0C;GLAGOLITIC CAPITAL LETTER DJERVI;Lu;0;L;;;;;N;;;;2C3C;
+2C0D;GLAGOLITIC CAPITAL LETTER KAKO;Lu;0;L;;;;;N;;;;2C3D;
+2C0E;GLAGOLITIC CAPITAL LETTER LJUDIJE;Lu;0;L;;;;;N;;;;2C3E;
+2C0F;GLAGOLITIC CAPITAL LETTER MYSLITE;Lu;0;L;;;;;N;;;;2C3F;
+2C10;GLAGOLITIC CAPITAL LETTER NASHI;Lu;0;L;;;;;N;;;;2C40;
+2C11;GLAGOLITIC CAPITAL LETTER ONU;Lu;0;L;;;;;N;;;;2C41;
+2C12;GLAGOLITIC CAPITAL LETTER POKOJI;Lu;0;L;;;;;N;;;;2C42;
+2C13;GLAGOLITIC CAPITAL LETTER RITSI;Lu;0;L;;;;;N;;;;2C43;
+2C14;GLAGOLITIC CAPITAL LETTER SLOVO;Lu;0;L;;;;;N;;;;2C44;
+2C15;GLAGOLITIC CAPITAL LETTER TVRIDO;Lu;0;L;;;;;N;;;;2C45;
+2C16;GLAGOLITIC CAPITAL LETTER UKU;Lu;0;L;;;;;N;;;;2C46;
+2C17;GLAGOLITIC CAPITAL LETTER FRITU;Lu;0;L;;;;;N;;;;2C47;
+2C18;GLAGOLITIC CAPITAL LETTER HERU;Lu;0;L;;;;;N;;;;2C48;
+2C19;GLAGOLITIC CAPITAL LETTER OTU;Lu;0;L;;;;;N;;;;2C49;
+2C1A;GLAGOLITIC CAPITAL LETTER PE;Lu;0;L;;;;;N;;;;2C4A;
+2C1B;GLAGOLITIC CAPITAL LETTER SHTA;Lu;0;L;;;;;N;;;;2C4B;
+2C1C;GLAGOLITIC CAPITAL LETTER TSI;Lu;0;L;;;;;N;;;;2C4C;
+2C1D;GLAGOLITIC CAPITAL LETTER CHRIVI;Lu;0;L;;;;;N;;;;2C4D;
+2C1E;GLAGOLITIC CAPITAL LETTER SHA;Lu;0;L;;;;;N;;;;2C4E;
+2C1F;GLAGOLITIC CAPITAL LETTER YERU;Lu;0;L;;;;;N;;;;2C4F;
+2C20;GLAGOLITIC CAPITAL LETTER YERI;Lu;0;L;;;;;N;;;;2C50;
+2C21;GLAGOLITIC CAPITAL LETTER YATI;Lu;0;L;;;;;N;;;;2C51;
+2C22;GLAGOLITIC CAPITAL LETTER SPIDERY HA;Lu;0;L;;;;;N;;;;2C52;
+2C23;GLAGOLITIC CAPITAL LETTER YU;Lu;0;L;;;;;N;;;;2C53;
+2C24;GLAGOLITIC CAPITAL LETTER SMALL YUS;Lu;0;L;;;;;N;;;;2C54;
+2C25;GLAGOLITIC CAPITAL LETTER SMALL YUS WITH TAIL;Lu;0;L;;;;;N;;;;2C55;
+2C26;GLAGOLITIC CAPITAL LETTER YO;Lu;0;L;;;;;N;;;;2C56;
+2C27;GLAGOLITIC CAPITAL LETTER IOTATED SMALL YUS;Lu;0;L;;;;;N;;;;2C57;
+2C28;GLAGOLITIC CAPITAL LETTER BIG YUS;Lu;0;L;;;;;N;;;;2C58;
+2C29;GLAGOLITIC CAPITAL LETTER IOTATED BIG YUS;Lu;0;L;;;;;N;;;;2C59;
+2C2A;GLAGOLITIC CAPITAL LETTER FITA;Lu;0;L;;;;;N;;;;2C5A;
+2C2B;GLAGOLITIC CAPITAL LETTER IZHITSA;Lu;0;L;;;;;N;;;;2C5B;
+2C2C;GLAGOLITIC CAPITAL LETTER SHTAPIC;Lu;0;L;;;;;N;;;;2C5C;
+2C2D;GLAGOLITIC CAPITAL LETTER TROKUTASTI A;Lu;0;L;;;;;N;;;;2C5D;
+2C2E;GLAGOLITIC CAPITAL LETTER LATINATE MYSLITE;Lu;0;L;;;;;N;;;;2C5E;
+2C30;GLAGOLITIC SMALL LETTER AZU;Ll;0;L;;;;;N;;;2C00;;2C00
+2C31;GLAGOLITIC SMALL LETTER BUKY;Ll;0;L;;;;;N;;;2C01;;2C01
+2C32;GLAGOLITIC SMALL LETTER VEDE;Ll;0;L;;;;;N;;;2C02;;2C02
+2C33;GLAGOLITIC SMALL LETTER GLAGOLI;Ll;0;L;;;;;N;;;2C03;;2C03
+2C34;GLAGOLITIC SMALL LETTER DOBRO;Ll;0;L;;;;;N;;;2C04;;2C04
+2C35;GLAGOLITIC SMALL LETTER YESTU;Ll;0;L;;;;;N;;;2C05;;2C05
+2C36;GLAGOLITIC SMALL LETTER ZHIVETE;Ll;0;L;;;;;N;;;2C06;;2C06
+2C37;GLAGOLITIC SMALL LETTER DZELO;Ll;0;L;;;;;N;;;2C07;;2C07
+2C38;GLAGOLITIC SMALL LETTER ZEMLJA;Ll;0;L;;;;;N;;;2C08;;2C08
+2C39;GLAGOLITIC SMALL LETTER IZHE;Ll;0;L;;;;;N;;;2C09;;2C09
+2C3A;GLAGOLITIC SMALL LETTER INITIAL IZHE;Ll;0;L;;;;;N;;;2C0A;;2C0A
+2C3B;GLAGOLITIC SMALL LETTER I;Ll;0;L;;;;;N;;;2C0B;;2C0B
+2C3C;GLAGOLITIC SMALL LETTER DJERVI;Ll;0;L;;;;;N;;;2C0C;;2C0C
+2C3D;GLAGOLITIC SMALL LETTER KAKO;Ll;0;L;;;;;N;;;2C0D;;2C0D
+2C3E;GLAGOLITIC SMALL LETTER LJUDIJE;Ll;0;L;;;;;N;;;2C0E;;2C0E
+2C3F;GLAGOLITIC SMALL LETTER MYSLITE;Ll;0;L;;;;;N;;;2C0F;;2C0F
+2C40;GLAGOLITIC SMALL LETTER NASHI;Ll;0;L;;;;;N;;;2C10;;2C10
+2C41;GLAGOLITIC SMALL LETTER ONU;Ll;0;L;;;;;N;;;2C11;;2C11
+2C42;GLAGOLITIC SMALL LETTER POKOJI;Ll;0;L;;;;;N;;;2C12;;2C12
+2C43;GLAGOLITIC SMALL LETTER RITSI;Ll;0;L;;;;;N;;;2C13;;2C13
+2C44;GLAGOLITIC SMALL LETTER SLOVO;Ll;0;L;;;;;N;;;2C14;;2C14
+2C45;GLAGOLITIC SMALL LETTER TVRIDO;Ll;0;L;;;;;N;;;2C15;;2C15
+2C46;GLAGOLITIC SMALL LETTER UKU;Ll;0;L;;;;;N;;;2C16;;2C16
+2C47;GLAGOLITIC SMALL LETTER FRITU;Ll;0;L;;;;;N;;;2C17;;2C17
+2C48;GLAGOLITIC SMALL LETTER HERU;Ll;0;L;;;;;N;;;2C18;;2C18
+2C49;GLAGOLITIC SMALL LETTER OTU;Ll;0;L;;;;;N;;;2C19;;2C19
+2C4A;GLAGOLITIC SMALL LETTER PE;Ll;0;L;;;;;N;;;2C1A;;2C1A
+2C4B;GLAGOLITIC SMALL LETTER SHTA;Ll;0;L;;;;;N;;;2C1B;;2C1B
+2C4C;GLAGOLITIC SMALL LETTER TSI;Ll;0;L;;;;;N;;;2C1C;;2C1C
+2C4D;GLAGOLITIC SMALL LETTER CHRIVI;Ll;0;L;;;;;N;;;2C1D;;2C1D
+2C4E;GLAGOLITIC SMALL LETTER SHA;Ll;0;L;;;;;N;;;2C1E;;2C1E
+2C4F;GLAGOLITIC SMALL LETTER YERU;Ll;0;L;;;;;N;;;2C1F;;2C1F
+2C50;GLAGOLITIC SMALL LETTER YERI;Ll;0;L;;;;;N;;;2C20;;2C20
+2C51;GLAGOLITIC SMALL LETTER YATI;Ll;0;L;;;;;N;;;2C21;;2C21
+2C52;GLAGOLITIC SMALL LETTER SPIDERY HA;Ll;0;L;;;;;N;;;2C22;;2C22
+2C53;GLAGOLITIC SMALL LETTER YU;Ll;0;L;;;;;N;;;2C23;;2C23
+2C54;GLAGOLITIC SMALL LETTER SMALL YUS;Ll;0;L;;;;;N;;;2C24;;2C24
+2C55;GLAGOLITIC SMALL LETTER SMALL YUS WITH TAIL;Ll;0;L;;;;;N;;;2C25;;2C25
+2C56;GLAGOLITIC SMALL LETTER YO;Ll;0;L;;;;;N;;;2C26;;2C26
+2C57;GLAGOLITIC SMALL LETTER IOTATED SMALL YUS;Ll;0;L;;;;;N;;;2C27;;2C27
+2C58;GLAGOLITIC SMALL LETTER BIG YUS;Ll;0;L;;;;;N;;;2C28;;2C28
+2C59;GLAGOLITIC SMALL LETTER IOTATED BIG YUS;Ll;0;L;;;;;N;;;2C29;;2C29
+2C5A;GLAGOLITIC SMALL LETTER FITA;Ll;0;L;;;;;N;;;2C2A;;2C2A
+2C5B;GLAGOLITIC SMALL LETTER IZHITSA;Ll;0;L;;;;;N;;;2C2B;;2C2B
+2C5C;GLAGOLITIC SMALL LETTER SHTAPIC;Ll;0;L;;;;;N;;;2C2C;;2C2C
+2C5D;GLAGOLITIC SMALL LETTER TROKUTASTI A;Ll;0;L;;;;;N;;;2C2D;;2C2D
+2C5E;GLAGOLITIC SMALL LETTER LATINATE MYSLITE;Ll;0;L;;;;;N;;;2C2E;;2C2E
+2C60;LATIN CAPITAL LETTER L WITH DOUBLE BAR;Lu;0;L;;;;;N;;;;2C61;
+2C61;LATIN SMALL LETTER L WITH DOUBLE BAR;Ll;0;L;;;;;N;;;2C60;;2C60
+2C62;LATIN CAPITAL LETTER L WITH MIDDLE TILDE;Lu;0;L;;;;;N;;;;026B;
+2C63;LATIN CAPITAL LETTER P WITH STROKE;Lu;0;L;;;;;N;;;;1D7D;
+2C64;LATIN CAPITAL LETTER R WITH TAIL;Lu;0;L;;;;;N;;;;027D;
+2C65;LATIN SMALL LETTER A WITH STROKE;Ll;0;L;;;;;N;;;023A;;023A
+2C66;LATIN SMALL LETTER T WITH DIAGONAL STROKE;Ll;0;L;;;;;N;;;023E;;023E
+2C67;LATIN CAPITAL LETTER H WITH DESCENDER;Lu;0;L;;;;;N;;;;2C68;
+2C68;LATIN SMALL LETTER H WITH DESCENDER;Ll;0;L;;;;;N;;;2C67;;2C67
+2C69;LATIN CAPITAL LETTER K WITH DESCENDER;Lu;0;L;;;;;N;;;;2C6A;
+2C6A;LATIN SMALL LETTER K WITH DESCENDER;Ll;0;L;;;;;N;;;2C69;;2C69
+2C6B;LATIN CAPITAL LETTER Z WITH DESCENDER;Lu;0;L;;;;;N;;;;2C6C;
+2C6C;LATIN SMALL LETTER Z WITH DESCENDER;Ll;0;L;;;;;N;;;2C6B;;2C6B
+2C6D;LATIN CAPITAL LETTER ALPHA;Lu;0;L;;;;;N;;;;0251;
+2C6E;LATIN CAPITAL LETTER M WITH HOOK;Lu;0;L;;;;;N;;;;0271;
+2C6F;LATIN CAPITAL LETTER TURNED A;Lu;0;L;;;;;N;;;;0250;
+2C70;LATIN CAPITAL LETTER TURNED ALPHA;Lu;0;L;;;;;N;;;;0252;
+2C71;LATIN SMALL LETTER V WITH RIGHT HOOK;Ll;0;L;;;;;N;;;;;
+2C72;LATIN CAPITAL LETTER W WITH HOOK;Lu;0;L;;;;;N;;;;2C73;
+2C73;LATIN SMALL LETTER W WITH HOOK;Ll;0;L;;;;;N;;;2C72;;2C72
+2C74;LATIN SMALL LETTER V WITH CURL;Ll;0;L;;;;;N;;;;;
+2C75;LATIN CAPITAL LETTER HALF H;Lu;0;L;;;;;N;;;;2C76;
+2C76;LATIN SMALL LETTER HALF H;Ll;0;L;;;;;N;;;2C75;;2C75
+2C77;LATIN SMALL LETTER TAILLESS PHI;Ll;0;L;;;;;N;;;;;
+2C78;LATIN SMALL LETTER E WITH NOTCH;Ll;0;L;;;;;N;;;;;
+2C79;LATIN SMALL LETTER TURNED R WITH TAIL;Ll;0;L;;;;;N;;;;;
+2C7A;LATIN SMALL LETTER O WITH LOW RING INSIDE;Ll;0;L;;;;;N;;;;;
+2C7B;LATIN LETTER SMALL CAPITAL TURNED E;Ll;0;L;;;;;N;;;;;
+2C7C;LATIN SUBSCRIPT SMALL LETTER J;Lm;0;L;<sub> 006A;;;;N;;;;;
+2C7D;MODIFIER LETTER CAPITAL V;Lm;0;L;<super> 0056;;;;N;;;;;
+2C7E;LATIN CAPITAL LETTER S WITH SWASH TAIL;Lu;0;L;;;;;N;;;;023F;
+2C7F;LATIN CAPITAL LETTER Z WITH SWASH TAIL;Lu;0;L;;;;;N;;;;0240;
+2C80;COPTIC CAPITAL LETTER ALFA;Lu;0;L;;;;;N;;;;2C81;
+2C81;COPTIC SMALL LETTER ALFA;Ll;0;L;;;;;N;;;2C80;;2C80
+2C82;COPTIC CAPITAL LETTER VIDA;Lu;0;L;;;;;N;;;;2C83;
+2C83;COPTIC SMALL LETTER VIDA;Ll;0;L;;;;;N;;;2C82;;2C82
+2C84;COPTIC CAPITAL LETTER GAMMA;Lu;0;L;;;;;N;;;;2C85;
+2C85;COPTIC SMALL LETTER GAMMA;Ll;0;L;;;;;N;;;2C84;;2C84
+2C86;COPTIC CAPITAL LETTER DALDA;Lu;0;L;;;;;N;;;;2C87;
+2C87;COPTIC SMALL LETTER DALDA;Ll;0;L;;;;;N;;;2C86;;2C86
+2C88;COPTIC CAPITAL LETTER EIE;Lu;0;L;;;;;N;;;;2C89;
+2C89;COPTIC SMALL LETTER EIE;Ll;0;L;;;;;N;;;2C88;;2C88
+2C8A;COPTIC CAPITAL LETTER SOU;Lu;0;L;;;;;N;;;;2C8B;
+2C8B;COPTIC SMALL LETTER SOU;Ll;0;L;;;;;N;;;2C8A;;2C8A
+2C8C;COPTIC CAPITAL LETTER ZATA;Lu;0;L;;;;;N;;;;2C8D;
+2C8D;COPTIC SMALL LETTER ZATA;Ll;0;L;;;;;N;;;2C8C;;2C8C
+2C8E;COPTIC CAPITAL LETTER HATE;Lu;0;L;;;;;N;;;;2C8F;
+2C8F;COPTIC SMALL LETTER HATE;Ll;0;L;;;;;N;;;2C8E;;2C8E
+2C90;COPTIC CAPITAL LETTER THETHE;Lu;0;L;;;;;N;;;;2C91;
+2C91;COPTIC SMALL LETTER THETHE;Ll;0;L;;;;;N;;;2C90;;2C90
+2C92;COPTIC CAPITAL LETTER IAUDA;Lu;0;L;;;;;N;;;;2C93;
+2C93;COPTIC SMALL LETTER IAUDA;Ll;0;L;;;;;N;;;2C92;;2C92
+2C94;COPTIC CAPITAL LETTER KAPA;Lu;0;L;;;;;N;;;;2C95;
+2C95;COPTIC SMALL LETTER KAPA;Ll;0;L;;;;;N;;;2C94;;2C94
+2C96;COPTIC CAPITAL LETTER LAULA;Lu;0;L;;;;;N;;;;2C97;
+2C97;COPTIC SMALL LETTER LAULA;Ll;0;L;;;;;N;;;2C96;;2C96
+2C98;COPTIC CAPITAL LETTER MI;Lu;0;L;;;;;N;;;;2C99;
+2C99;COPTIC SMALL LETTER MI;Ll;0;L;;;;;N;;;2C98;;2C98
+2C9A;COPTIC CAPITAL LETTER NI;Lu;0;L;;;;;N;;;;2C9B;
+2C9B;COPTIC SMALL LETTER NI;Ll;0;L;;;;;N;;;2C9A;;2C9A
+2C9C;COPTIC CAPITAL LETTER KSI;Lu;0;L;;;;;N;;;;2C9D;
+2C9D;COPTIC SMALL LETTER KSI;Ll;0;L;;;;;N;;;2C9C;;2C9C
+2C9E;COPTIC CAPITAL LETTER O;Lu;0;L;;;;;N;;;;2C9F;
+2C9F;COPTIC SMALL LETTER O;Ll;0;L;;;;;N;;;2C9E;;2C9E
+2CA0;COPTIC CAPITAL LETTER PI;Lu;0;L;;;;;N;;;;2CA1;
+2CA1;COPTIC SMALL LETTER PI;Ll;0;L;;;;;N;;;2CA0;;2CA0
+2CA2;COPTIC CAPITAL LETTER RO;Lu;0;L;;;;;N;;;;2CA3;
+2CA3;COPTIC SMALL LETTER RO;Ll;0;L;;;;;N;;;2CA2;;2CA2
+2CA4;COPTIC CAPITAL LETTER SIMA;Lu;0;L;;;;;N;;;;2CA5;
+2CA5;COPTIC SMALL LETTER SIMA;Ll;0;L;;;;;N;;;2CA4;;2CA4
+2CA6;COPTIC CAPITAL LETTER TAU;Lu;0;L;;;;;N;;;;2CA7;
+2CA7;COPTIC SMALL LETTER TAU;Ll;0;L;;;;;N;;;2CA6;;2CA6
+2CA8;COPTIC CAPITAL LETTER UA;Lu;0;L;;;;;N;;;;2CA9;
+2CA9;COPTIC SMALL LETTER UA;Ll;0;L;;;;;N;;;2CA8;;2CA8
+2CAA;COPTIC CAPITAL LETTER FI;Lu;0;L;;;;;N;;;;2CAB;
+2CAB;COPTIC SMALL LETTER FI;Ll;0;L;;;;;N;;;2CAA;;2CAA
+2CAC;COPTIC CAPITAL LETTER KHI;Lu;0;L;;;;;N;;;;2CAD;
+2CAD;COPTIC SMALL LETTER KHI;Ll;0;L;;;;;N;;;2CAC;;2CAC
+2CAE;COPTIC CAPITAL LETTER PSI;Lu;0;L;;;;;N;;;;2CAF;
+2CAF;COPTIC SMALL LETTER PSI;Ll;0;L;;;;;N;;;2CAE;;2CAE
+2CB0;COPTIC CAPITAL LETTER OOU;Lu;0;L;;;;;N;;;;2CB1;
+2CB1;COPTIC SMALL LETTER OOU;Ll;0;L;;;;;N;;;2CB0;;2CB0
+2CB2;COPTIC CAPITAL LETTER DIALECT-P ALEF;Lu;0;L;;;;;N;;;;2CB3;
+2CB3;COPTIC SMALL LETTER DIALECT-P ALEF;Ll;0;L;;;;;N;;;2CB2;;2CB2
+2CB4;COPTIC CAPITAL LETTER OLD COPTIC AIN;Lu;0;L;;;;;N;;;;2CB5;
+2CB5;COPTIC SMALL LETTER OLD COPTIC AIN;Ll;0;L;;;;;N;;;2CB4;;2CB4
+2CB6;COPTIC CAPITAL LETTER CRYPTOGRAMMIC EIE;Lu;0;L;;;;;N;;;;2CB7;
+2CB7;COPTIC SMALL LETTER CRYPTOGRAMMIC EIE;Ll;0;L;;;;;N;;;2CB6;;2CB6
+2CB8;COPTIC CAPITAL LETTER DIALECT-P KAPA;Lu;0;L;;;;;N;;;;2CB9;
+2CB9;COPTIC SMALL LETTER DIALECT-P KAPA;Ll;0;L;;;;;N;;;2CB8;;2CB8
+2CBA;COPTIC CAPITAL LETTER DIALECT-P NI;Lu;0;L;;;;;N;;;;2CBB;
+2CBB;COPTIC SMALL LETTER DIALECT-P NI;Ll;0;L;;;;;N;;;2CBA;;2CBA
+2CBC;COPTIC CAPITAL LETTER CRYPTOGRAMMIC NI;Lu;0;L;;;;;N;;;;2CBD;
+2CBD;COPTIC SMALL LETTER CRYPTOGRAMMIC NI;Ll;0;L;;;;;N;;;2CBC;;2CBC
+2CBE;COPTIC CAPITAL LETTER OLD COPTIC OOU;Lu;0;L;;;;;N;;;;2CBF;
+2CBF;COPTIC SMALL LETTER OLD COPTIC OOU;Ll;0;L;;;;;N;;;2CBE;;2CBE
+2CC0;COPTIC CAPITAL LETTER SAMPI;Lu;0;L;;;;;N;;;;2CC1;
+2CC1;COPTIC SMALL LETTER SAMPI;Ll;0;L;;;;;N;;;2CC0;;2CC0
+2CC2;COPTIC CAPITAL LETTER CROSSED SHEI;Lu;0;L;;;;;N;;;;2CC3;
+2CC3;COPTIC SMALL LETTER CROSSED SHEI;Ll;0;L;;;;;N;;;2CC2;;2CC2
+2CC4;COPTIC CAPITAL LETTER OLD COPTIC SHEI;Lu;0;L;;;;;N;;;;2CC5;
+2CC5;COPTIC SMALL LETTER OLD COPTIC SHEI;Ll;0;L;;;;;N;;;2CC4;;2CC4
+2CC6;COPTIC CAPITAL LETTER OLD COPTIC ESH;Lu;0;L;;;;;N;;;;2CC7;
+2CC7;COPTIC SMALL LETTER OLD COPTIC ESH;Ll;0;L;;;;;N;;;2CC6;;2CC6
+2CC8;COPTIC CAPITAL LETTER AKHMIMIC KHEI;Lu;0;L;;;;;N;;;;2CC9;
+2CC9;COPTIC SMALL LETTER AKHMIMIC KHEI;Ll;0;L;;;;;N;;;2CC8;;2CC8
+2CCA;COPTIC CAPITAL LETTER DIALECT-P HORI;Lu;0;L;;;;;N;;;;2CCB;
+2CCB;COPTIC SMALL LETTER DIALECT-P HORI;Ll;0;L;;;;;N;;;2CCA;;2CCA
+2CCC;COPTIC CAPITAL LETTER OLD COPTIC HORI;Lu;0;L;;;;;N;;;;2CCD;
+2CCD;COPTIC SMALL LETTER OLD COPTIC HORI;Ll;0;L;;;;;N;;;2CCC;;2CCC
+2CCE;COPTIC CAPITAL LETTER OLD COPTIC HA;Lu;0;L;;;;;N;;;;2CCF;
+2CCF;COPTIC SMALL LETTER OLD COPTIC HA;Ll;0;L;;;;;N;;;2CCE;;2CCE
+2CD0;COPTIC CAPITAL LETTER L-SHAPED HA;Lu;0;L;;;;;N;;;;2CD1;
+2CD1;COPTIC SMALL LETTER L-SHAPED HA;Ll;0;L;;;;;N;;;2CD0;;2CD0
+2CD2;COPTIC CAPITAL LETTER OLD COPTIC HEI;Lu;0;L;;;;;N;;;;2CD3;
+2CD3;COPTIC SMALL LETTER OLD COPTIC HEI;Ll;0;L;;;;;N;;;2CD2;;2CD2
+2CD4;COPTIC CAPITAL LETTER OLD COPTIC HAT;Lu;0;L;;;;;N;;;;2CD5;
+2CD5;COPTIC SMALL LETTER OLD COPTIC HAT;Ll;0;L;;;;;N;;;2CD4;;2CD4
+2CD6;COPTIC CAPITAL LETTER OLD COPTIC GANGIA;Lu;0;L;;;;;N;;;;2CD7;
+2CD7;COPTIC SMALL LETTER OLD COPTIC GANGIA;Ll;0;L;;;;;N;;;2CD6;;2CD6
+2CD8;COPTIC CAPITAL LETTER OLD COPTIC DJA;Lu;0;L;;;;;N;;;;2CD9;
+2CD9;COPTIC SMALL LETTER OLD COPTIC DJA;Ll;0;L;;;;;N;;;2CD8;;2CD8
+2CDA;COPTIC CAPITAL LETTER OLD COPTIC SHIMA;Lu;0;L;;;;;N;;;;2CDB;
+2CDB;COPTIC SMALL LETTER OLD COPTIC SHIMA;Ll;0;L;;;;;N;;;2CDA;;2CDA
+2CDC;COPTIC CAPITAL LETTER OLD NUBIAN SHIMA;Lu;0;L;;;;;N;;;;2CDD;
+2CDD;COPTIC SMALL LETTER OLD NUBIAN SHIMA;Ll;0;L;;;;;N;;;2CDC;;2CDC
+2CDE;COPTIC CAPITAL LETTER OLD NUBIAN NGI;Lu;0;L;;;;;N;;;;2CDF;
+2CDF;COPTIC SMALL LETTER OLD NUBIAN NGI;Ll;0;L;;;;;N;;;2CDE;;2CDE
+2CE0;COPTIC CAPITAL LETTER OLD NUBIAN NYI;Lu;0;L;;;;;N;;;;2CE1;
+2CE1;COPTIC SMALL LETTER OLD NUBIAN NYI;Ll;0;L;;;;;N;;;2CE0;;2CE0
+2CE2;COPTIC CAPITAL LETTER OLD NUBIAN WAU;Lu;0;L;;;;;N;;;;2CE3;
+2CE3;COPTIC SMALL LETTER OLD NUBIAN WAU;Ll;0;L;;;;;N;;;2CE2;;2CE2
+2CE4;COPTIC SYMBOL KAI;Ll;0;L;;;;;N;;;;;
+2CE5;COPTIC SYMBOL MI RO;So;0;ON;;;;;N;;;;;
+2CE6;COPTIC SYMBOL PI RO;So;0;ON;;;;;N;;;;;
+2CE7;COPTIC SYMBOL STAUROS;So;0;ON;;;;;N;;;;;
+2CE8;COPTIC SYMBOL TAU RO;So;0;ON;;;;;N;;;;;
+2CE9;COPTIC SYMBOL KHI RO;So;0;ON;;;;;N;;;;;
+2CEA;COPTIC SYMBOL SHIMA SIMA;So;0;ON;;;;;N;;;;;
+2CEB;COPTIC CAPITAL LETTER CRYPTOGRAMMIC SHEI;Lu;0;L;;;;;N;;;;2CEC;
+2CEC;COPTIC SMALL LETTER CRYPTOGRAMMIC SHEI;Ll;0;L;;;;;N;;;2CEB;;2CEB
+2CED;COPTIC CAPITAL LETTER CRYPTOGRAMMIC GANGIA;Lu;0;L;;;;;N;;;;2CEE;
+2CEE;COPTIC SMALL LETTER CRYPTOGRAMMIC GANGIA;Ll;0;L;;;;;N;;;2CED;;2CED
+2CEF;COPTIC COMBINING NI ABOVE;Mn;230;NSM;;;;;N;;;;;
+2CF0;COPTIC COMBINING SPIRITUS ASPER;Mn;230;NSM;;;;;N;;;;;
+2CF1;COPTIC COMBINING SPIRITUS LENIS;Mn;230;NSM;;;;;N;;;;;
+2CF2;COPTIC CAPITAL LETTER BOHAIRIC KHEI;Lu;0;L;;;;;N;;;;2CF3;
+2CF3;COPTIC SMALL LETTER BOHAIRIC KHEI;Ll;0;L;;;;;N;;;2CF2;;2CF2
+2CF9;COPTIC OLD NUBIAN FULL STOP;Po;0;ON;;;;;N;;;;;
+2CFA;COPTIC OLD NUBIAN DIRECT QUESTION MARK;Po;0;ON;;;;;N;;;;;
+2CFB;COPTIC OLD NUBIAN INDIRECT QUESTION MARK;Po;0;ON;;;;;N;;;;;
+2CFC;COPTIC OLD NUBIAN VERSE DIVIDER;Po;0;ON;;;;;N;;;;;
+2CFD;COPTIC FRACTION ONE HALF;No;0;ON;;;;1/2;N;;;;;
+2CFE;COPTIC FULL STOP;Po;0;ON;;;;;N;;;;;
+2CFF;COPTIC MORPHOLOGICAL DIVIDER;Po;0;ON;;;;;N;;;;;
+2D00;GEORGIAN SMALL LETTER AN;Ll;0;L;;;;;N;;;10A0;;10A0
+2D01;GEORGIAN SMALL LETTER BAN;Ll;0;L;;;;;N;;;10A1;;10A1
+2D02;GEORGIAN SMALL LETTER GAN;Ll;0;L;;;;;N;;;10A2;;10A2
+2D03;GEORGIAN SMALL LETTER DON;Ll;0;L;;;;;N;;;10A3;;10A3
+2D04;GEORGIAN SMALL LETTER EN;Ll;0;L;;;;;N;;;10A4;;10A4
+2D05;GEORGIAN SMALL LETTER VIN;Ll;0;L;;;;;N;;;10A5;;10A5
+2D06;GEORGIAN SMALL LETTER ZEN;Ll;0;L;;;;;N;;;10A6;;10A6
+2D07;GEORGIAN SMALL LETTER TAN;Ll;0;L;;;;;N;;;10A7;;10A7
+2D08;GEORGIAN SMALL LETTER IN;Ll;0;L;;;;;N;;;10A8;;10A8
+2D09;GEORGIAN SMALL LETTER KAN;Ll;0;L;;;;;N;;;10A9;;10A9
+2D0A;GEORGIAN SMALL LETTER LAS;Ll;0;L;;;;;N;;;10AA;;10AA
+2D0B;GEORGIAN SMALL LETTER MAN;Ll;0;L;;;;;N;;;10AB;;10AB
+2D0C;GEORGIAN SMALL LETTER NAR;Ll;0;L;;;;;N;;;10AC;;10AC
+2D0D;GEORGIAN SMALL LETTER ON;Ll;0;L;;;;;N;;;10AD;;10AD
+2D0E;GEORGIAN SMALL LETTER PAR;Ll;0;L;;;;;N;;;10AE;;10AE
+2D0F;GEORGIAN SMALL LETTER ZHAR;Ll;0;L;;;;;N;;;10AF;;10AF
+2D10;GEORGIAN SMALL LETTER RAE;Ll;0;L;;;;;N;;;10B0;;10B0
+2D11;GEORGIAN SMALL LETTER SAN;Ll;0;L;;;;;N;;;10B1;;10B1
+2D12;GEORGIAN SMALL LETTER TAR;Ll;0;L;;;;;N;;;10B2;;10B2
+2D13;GEORGIAN SMALL LETTER UN;Ll;0;L;;;;;N;;;10B3;;10B3
+2D14;GEORGIAN SMALL LETTER PHAR;Ll;0;L;;;;;N;;;10B4;;10B4
+2D15;GEORGIAN SMALL LETTER KHAR;Ll;0;L;;;;;N;;;10B5;;10B5
+2D16;GEORGIAN SMALL LETTER GHAN;Ll;0;L;;;;;N;;;10B6;;10B6
+2D17;GEORGIAN SMALL LETTER QAR;Ll;0;L;;;;;N;;;10B7;;10B7
+2D18;GEORGIAN SMALL LETTER SHIN;Ll;0;L;;;;;N;;;10B8;;10B8
+2D19;GEORGIAN SMALL LETTER CHIN;Ll;0;L;;;;;N;;;10B9;;10B9
+2D1A;GEORGIAN SMALL LETTER CAN;Ll;0;L;;;;;N;;;10BA;;10BA
+2D1B;GEORGIAN SMALL LETTER JIL;Ll;0;L;;;;;N;;;10BB;;10BB
+2D1C;GEORGIAN SMALL LETTER CIL;Ll;0;L;;;;;N;;;10BC;;10BC
+2D1D;GEORGIAN SMALL LETTER CHAR;Ll;0;L;;;;;N;;;10BD;;10BD
+2D1E;GEORGIAN SMALL LETTER XAN;Ll;0;L;;;;;N;;;10BE;;10BE
+2D1F;GEORGIAN SMALL LETTER JHAN;Ll;0;L;;;;;N;;;10BF;;10BF
+2D20;GEORGIAN SMALL LETTER HAE;Ll;0;L;;;;;N;;;10C0;;10C0
+2D21;GEORGIAN SMALL LETTER HE;Ll;0;L;;;;;N;;;10C1;;10C1
+2D22;GEORGIAN SMALL LETTER HIE;Ll;0;L;;;;;N;;;10C2;;10C2
+2D23;GEORGIAN SMALL LETTER WE;Ll;0;L;;;;;N;;;10C3;;10C3
+2D24;GEORGIAN SMALL LETTER HAR;Ll;0;L;;;;;N;;;10C4;;10C4
+2D25;GEORGIAN SMALL LETTER HOE;Ll;0;L;;;;;N;;;10C5;;10C5
+2D27;GEORGIAN SMALL LETTER YN;Ll;0;L;;;;;N;;;10C7;;10C7
+2D2D;GEORGIAN SMALL LETTER AEN;Ll;0;L;;;;;N;;;10CD;;10CD
+2D30;TIFINAGH LETTER YA;Lo;0;L;;;;;N;;;;;
+2D31;TIFINAGH LETTER YAB;Lo;0;L;;;;;N;;;;;
+2D32;TIFINAGH LETTER YABH;Lo;0;L;;;;;N;;;;;
+2D33;TIFINAGH LETTER YAG;Lo;0;L;;;;;N;;;;;
+2D34;TIFINAGH LETTER YAGHH;Lo;0;L;;;;;N;;;;;
+2D35;TIFINAGH LETTER BERBER ACADEMY YAJ;Lo;0;L;;;;;N;;;;;
+2D36;TIFINAGH LETTER YAJ;Lo;0;L;;;;;N;;;;;
+2D37;TIFINAGH LETTER YAD;Lo;0;L;;;;;N;;;;;
+2D38;TIFINAGH LETTER YADH;Lo;0;L;;;;;N;;;;;
+2D39;TIFINAGH LETTER YADD;Lo;0;L;;;;;N;;;;;
+2D3A;TIFINAGH LETTER YADDH;Lo;0;L;;;;;N;;;;;
+2D3B;TIFINAGH LETTER YEY;Lo;0;L;;;;;N;;;;;
+2D3C;TIFINAGH LETTER YAF;Lo;0;L;;;;;N;;;;;
+2D3D;TIFINAGH LETTER YAK;Lo;0;L;;;;;N;;;;;
+2D3E;TIFINAGH LETTER TUAREG YAK;Lo;0;L;;;;;N;;;;;
+2D3F;TIFINAGH LETTER YAKHH;Lo;0;L;;;;;N;;;;;
+2D40;TIFINAGH LETTER YAH;Lo;0;L;;;;;N;;;;;
+2D41;TIFINAGH LETTER BERBER ACADEMY YAH;Lo;0;L;;;;;N;;;;;
+2D42;TIFINAGH LETTER TUAREG YAH;Lo;0;L;;;;;N;;;;;
+2D43;TIFINAGH LETTER YAHH;Lo;0;L;;;;;N;;;;;
+2D44;TIFINAGH LETTER YAA;Lo;0;L;;;;;N;;;;;
+2D45;TIFINAGH LETTER YAKH;Lo;0;L;;;;;N;;;;;
+2D46;TIFINAGH LETTER TUAREG YAKH;Lo;0;L;;;;;N;;;;;
+2D47;TIFINAGH LETTER YAQ;Lo;0;L;;;;;N;;;;;
+2D48;TIFINAGH LETTER TUAREG YAQ;Lo;0;L;;;;;N;;;;;
+2D49;TIFINAGH LETTER YI;Lo;0;L;;;;;N;;;;;
+2D4A;TIFINAGH LETTER YAZH;Lo;0;L;;;;;N;;;;;
+2D4B;TIFINAGH LETTER AHAGGAR YAZH;Lo;0;L;;;;;N;;;;;
+2D4C;TIFINAGH LETTER TUAREG YAZH;Lo;0;L;;;;;N;;;;;
+2D4D;TIFINAGH LETTER YAL;Lo;0;L;;;;;N;;;;;
+2D4E;TIFINAGH LETTER YAM;Lo;0;L;;;;;N;;;;;
+2D4F;TIFINAGH LETTER YAN;Lo;0;L;;;;;N;;;;;
+2D50;TIFINAGH LETTER TUAREG YAGN;Lo;0;L;;;;;N;;;;;
+2D51;TIFINAGH LETTER TUAREG YANG;Lo;0;L;;;;;N;;;;;
+2D52;TIFINAGH LETTER YAP;Lo;0;L;;;;;N;;;;;
+2D53;TIFINAGH LETTER YU;Lo;0;L;;;;;N;;;;;
+2D54;TIFINAGH LETTER YAR;Lo;0;L;;;;;N;;;;;
+2D55;TIFINAGH LETTER YARR;Lo;0;L;;;;;N;;;;;
+2D56;TIFINAGH LETTER YAGH;Lo;0;L;;;;;N;;;;;
+2D57;TIFINAGH LETTER TUAREG YAGH;Lo;0;L;;;;;N;;;;;
+2D58;TIFINAGH LETTER AYER YAGH;Lo;0;L;;;;;N;;;;;
+2D59;TIFINAGH LETTER YAS;Lo;0;L;;;;;N;;;;;
+2D5A;TIFINAGH LETTER YASS;Lo;0;L;;;;;N;;;;;
+2D5B;TIFINAGH LETTER YASH;Lo;0;L;;;;;N;;;;;
+2D5C;TIFINAGH LETTER YAT;Lo;0;L;;;;;N;;;;;
+2D5D;TIFINAGH LETTER YATH;Lo;0;L;;;;;N;;;;;
+2D5E;TIFINAGH LETTER YACH;Lo;0;L;;;;;N;;;;;
+2D5F;TIFINAGH LETTER YATT;Lo;0;L;;;;;N;;;;;
+2D60;TIFINAGH LETTER YAV;Lo;0;L;;;;;N;;;;;
+2D61;TIFINAGH LETTER YAW;Lo;0;L;;;;;N;;;;;
+2D62;TIFINAGH LETTER YAY;Lo;0;L;;;;;N;;;;;
+2D63;TIFINAGH LETTER YAZ;Lo;0;L;;;;;N;;;;;
+2D64;TIFINAGH LETTER TAWELLEMET YAZ;Lo;0;L;;;;;N;;;;;
+2D65;TIFINAGH LETTER YAZZ;Lo;0;L;;;;;N;;;;;
+2D66;TIFINAGH LETTER YE;Lo;0;L;;;;;N;;;;;
+2D67;TIFINAGH LETTER YO;Lo;0;L;;;;;N;;;;;
+2D6F;TIFINAGH MODIFIER LETTER LABIALIZATION MARK;Lm;0;L;<super> 2D61;;;;N;;;;;
+2D70;TIFINAGH SEPARATOR MARK;Po;0;L;;;;;N;;;;;
+2D7F;TIFINAGH CONSONANT JOINER;Mn;9;NSM;;;;;N;;;;;
+2D80;ETHIOPIC SYLLABLE LOA;Lo;0;L;;;;;N;;;;;
+2D81;ETHIOPIC SYLLABLE MOA;Lo;0;L;;;;;N;;;;;
+2D82;ETHIOPIC SYLLABLE ROA;Lo;0;L;;;;;N;;;;;
+2D83;ETHIOPIC SYLLABLE SOA;Lo;0;L;;;;;N;;;;;
+2D84;ETHIOPIC SYLLABLE SHOA;Lo;0;L;;;;;N;;;;;
+2D85;ETHIOPIC SYLLABLE BOA;Lo;0;L;;;;;N;;;;;
+2D86;ETHIOPIC SYLLABLE TOA;Lo;0;L;;;;;N;;;;;
+2D87;ETHIOPIC SYLLABLE COA;Lo;0;L;;;;;N;;;;;
+2D88;ETHIOPIC SYLLABLE NOA;Lo;0;L;;;;;N;;;;;
+2D89;ETHIOPIC SYLLABLE NYOA;Lo;0;L;;;;;N;;;;;
+2D8A;ETHIOPIC SYLLABLE GLOTTAL OA;Lo;0;L;;;;;N;;;;;
+2D8B;ETHIOPIC SYLLABLE ZOA;Lo;0;L;;;;;N;;;;;
+2D8C;ETHIOPIC SYLLABLE DOA;Lo;0;L;;;;;N;;;;;
+2D8D;ETHIOPIC SYLLABLE DDOA;Lo;0;L;;;;;N;;;;;
+2D8E;ETHIOPIC SYLLABLE JOA;Lo;0;L;;;;;N;;;;;
+2D8F;ETHIOPIC SYLLABLE THOA;Lo;0;L;;;;;N;;;;;
+2D90;ETHIOPIC SYLLABLE CHOA;Lo;0;L;;;;;N;;;;;
+2D91;ETHIOPIC SYLLABLE PHOA;Lo;0;L;;;;;N;;;;;
+2D92;ETHIOPIC SYLLABLE POA;Lo;0;L;;;;;N;;;;;
+2D93;ETHIOPIC SYLLABLE GGWA;Lo;0;L;;;;;N;;;;;
+2D94;ETHIOPIC SYLLABLE GGWI;Lo;0;L;;;;;N;;;;;
+2D95;ETHIOPIC SYLLABLE GGWEE;Lo;0;L;;;;;N;;;;;
+2D96;ETHIOPIC SYLLABLE GGWE;Lo;0;L;;;;;N;;;;;
+2DA0;ETHIOPIC SYLLABLE SSA;Lo;0;L;;;;;N;;;;;
+2DA1;ETHIOPIC SYLLABLE SSU;Lo;0;L;;;;;N;;;;;
+2DA2;ETHIOPIC SYLLABLE SSI;Lo;0;L;;;;;N;;;;;
+2DA3;ETHIOPIC SYLLABLE SSAA;Lo;0;L;;;;;N;;;;;
+2DA4;ETHIOPIC SYLLABLE SSEE;Lo;0;L;;;;;N;;;;;
+2DA5;ETHIOPIC SYLLABLE SSE;Lo;0;L;;;;;N;;;;;
+2DA6;ETHIOPIC SYLLABLE SSO;Lo;0;L;;;;;N;;;;;
+2DA8;ETHIOPIC SYLLABLE CCA;Lo;0;L;;;;;N;;;;;
+2DA9;ETHIOPIC SYLLABLE CCU;Lo;0;L;;;;;N;;;;;
+2DAA;ETHIOPIC SYLLABLE CCI;Lo;0;L;;;;;N;;;;;
+2DAB;ETHIOPIC SYLLABLE CCAA;Lo;0;L;;;;;N;;;;;
+2DAC;ETHIOPIC SYLLABLE CCEE;Lo;0;L;;;;;N;;;;;
+2DAD;ETHIOPIC SYLLABLE CCE;Lo;0;L;;;;;N;;;;;
+2DAE;ETHIOPIC SYLLABLE CCO;Lo;0;L;;;;;N;;;;;
+2DB0;ETHIOPIC SYLLABLE ZZA;Lo;0;L;;;;;N;;;;;
+2DB1;ETHIOPIC SYLLABLE ZZU;Lo;0;L;;;;;N;;;;;
+2DB2;ETHIOPIC SYLLABLE ZZI;Lo;0;L;;;;;N;;;;;
+2DB3;ETHIOPIC SYLLABLE ZZAA;Lo;0;L;;;;;N;;;;;
+2DB4;ETHIOPIC SYLLABLE ZZEE;Lo;0;L;;;;;N;;;;;
+2DB5;ETHIOPIC SYLLABLE ZZE;Lo;0;L;;;;;N;;;;;
+2DB6;ETHIOPIC SYLLABLE ZZO;Lo;0;L;;;;;N;;;;;
+2DB8;ETHIOPIC SYLLABLE CCHA;Lo;0;L;;;;;N;;;;;
+2DB9;ETHIOPIC SYLLABLE CCHU;Lo;0;L;;;;;N;;;;;
+2DBA;ETHIOPIC SYLLABLE CCHI;Lo;0;L;;;;;N;;;;;
+2DBB;ETHIOPIC SYLLABLE CCHAA;Lo;0;L;;;;;N;;;;;
+2DBC;ETHIOPIC SYLLABLE CCHEE;Lo;0;L;;;;;N;;;;;
+2DBD;ETHIOPIC SYLLABLE CCHE;Lo;0;L;;;;;N;;;;;
+2DBE;ETHIOPIC SYLLABLE CCHO;Lo;0;L;;;;;N;;;;;
+2DC0;ETHIOPIC SYLLABLE QYA;Lo;0;L;;;;;N;;;;;
+2DC1;ETHIOPIC SYLLABLE QYU;Lo;0;L;;;;;N;;;;;
+2DC2;ETHIOPIC SYLLABLE QYI;Lo;0;L;;;;;N;;;;;
+2DC3;ETHIOPIC SYLLABLE QYAA;Lo;0;L;;;;;N;;;;;
+2DC4;ETHIOPIC SYLLABLE QYEE;Lo;0;L;;;;;N;;;;;
+2DC5;ETHIOPIC SYLLABLE QYE;Lo;0;L;;;;;N;;;;;
+2DC6;ETHIOPIC SYLLABLE QYO;Lo;0;L;;;;;N;;;;;
+2DC8;ETHIOPIC SYLLABLE KYA;Lo;0;L;;;;;N;;;;;
+2DC9;ETHIOPIC SYLLABLE KYU;Lo;0;L;;;;;N;;;;;
+2DCA;ETHIOPIC SYLLABLE KYI;Lo;0;L;;;;;N;;;;;
+2DCB;ETHIOPIC SYLLABLE KYAA;Lo;0;L;;;;;N;;;;;
+2DCC;ETHIOPIC SYLLABLE KYEE;Lo;0;L;;;;;N;;;;;
+2DCD;ETHIOPIC SYLLABLE KYE;Lo;0;L;;;;;N;;;;;
+2DCE;ETHIOPIC SYLLABLE KYO;Lo;0;L;;;;;N;;;;;
+2DD0;ETHIOPIC SYLLABLE XYA;Lo;0;L;;;;;N;;;;;
+2DD1;ETHIOPIC SYLLABLE XYU;Lo;0;L;;;;;N;;;;;
+2DD2;ETHIOPIC SYLLABLE XYI;Lo;0;L;;;;;N;;;;;
+2DD3;ETHIOPIC SYLLABLE XYAA;Lo;0;L;;;;;N;;;;;
+2DD4;ETHIOPIC SYLLABLE XYEE;Lo;0;L;;;;;N;;;;;
+2DD5;ETHIOPIC SYLLABLE XYE;Lo;0;L;;;;;N;;;;;
+2DD6;ETHIOPIC SYLLABLE XYO;Lo;0;L;;;;;N;;;;;
+2DD8;ETHIOPIC SYLLABLE GYA;Lo;0;L;;;;;N;;;;;
+2DD9;ETHIOPIC SYLLABLE GYU;Lo;0;L;;;;;N;;;;;
+2DDA;ETHIOPIC SYLLABLE GYI;Lo;0;L;;;;;N;;;;;
+2DDB;ETHIOPIC SYLLABLE GYAA;Lo;0;L;;;;;N;;;;;
+2DDC;ETHIOPIC SYLLABLE GYEE;Lo;0;L;;;;;N;;;;;
+2DDD;ETHIOPIC SYLLABLE GYE;Lo;0;L;;;;;N;;;;;
+2DDE;ETHIOPIC SYLLABLE GYO;Lo;0;L;;;;;N;;;;;
+2DE0;COMBINING CYRILLIC LETTER BE;Mn;230;NSM;;;;;N;;;;;
+2DE1;COMBINING CYRILLIC LETTER VE;Mn;230;NSM;;;;;N;;;;;
+2DE2;COMBINING CYRILLIC LETTER GHE;Mn;230;NSM;;;;;N;;;;;
+2DE3;COMBINING CYRILLIC LETTER DE;Mn;230;NSM;;;;;N;;;;;
+2DE4;COMBINING CYRILLIC LETTER ZHE;Mn;230;NSM;;;;;N;;;;;
+2DE5;COMBINING CYRILLIC LETTER ZE;Mn;230;NSM;;;;;N;;;;;
+2DE6;COMBINING CYRILLIC LETTER KA;Mn;230;NSM;;;;;N;;;;;
+2DE7;COMBINING CYRILLIC LETTER EL;Mn;230;NSM;;;;;N;;;;;
+2DE8;COMBINING CYRILLIC LETTER EM;Mn;230;NSM;;;;;N;;;;;
+2DE9;COMBINING CYRILLIC LETTER EN;Mn;230;NSM;;;;;N;;;;;
+2DEA;COMBINING CYRILLIC LETTER O;Mn;230;NSM;;;;;N;;;;;
+2DEB;COMBINING CYRILLIC LETTER PE;Mn;230;NSM;;;;;N;;;;;
+2DEC;COMBINING CYRILLIC LETTER ER;Mn;230;NSM;;;;;N;;;;;
+2DED;COMBINING CYRILLIC LETTER ES;Mn;230;NSM;;;;;N;;;;;
+2DEE;COMBINING CYRILLIC LETTER TE;Mn;230;NSM;;;;;N;;;;;
+2DEF;COMBINING CYRILLIC LETTER HA;Mn;230;NSM;;;;;N;;;;;
+2DF0;COMBINING CYRILLIC LETTER TSE;Mn;230;NSM;;;;;N;;;;;
+2DF1;COMBINING CYRILLIC LETTER CHE;Mn;230;NSM;;;;;N;;;;;
+2DF2;COMBINING CYRILLIC LETTER SHA;Mn;230;NSM;;;;;N;;;;;
+2DF3;COMBINING CYRILLIC LETTER SHCHA;Mn;230;NSM;;;;;N;;;;;
+2DF4;COMBINING CYRILLIC LETTER FITA;Mn;230;NSM;;;;;N;;;;;
+2DF5;COMBINING CYRILLIC LETTER ES-TE;Mn;230;NSM;;;;;N;;;;;
+2DF6;COMBINING CYRILLIC LETTER A;Mn;230;NSM;;;;;N;;;;;
+2DF7;COMBINING CYRILLIC LETTER IE;Mn;230;NSM;;;;;N;;;;;
+2DF8;COMBINING CYRILLIC LETTER DJERV;Mn;230;NSM;;;;;N;;;;;
+2DF9;COMBINING CYRILLIC LETTER MONOGRAPH UK;Mn;230;NSM;;;;;N;;;;;
+2DFA;COMBINING CYRILLIC LETTER YAT;Mn;230;NSM;;;;;N;;;;;
+2DFB;COMBINING CYRILLIC LETTER YU;Mn;230;NSM;;;;;N;;;;;
+2DFC;COMBINING CYRILLIC LETTER IOTIFIED A;Mn;230;NSM;;;;;N;;;;;
+2DFD;COMBINING CYRILLIC LETTER LITTLE YUS;Mn;230;NSM;;;;;N;;;;;
+2DFE;COMBINING CYRILLIC LETTER BIG YUS;Mn;230;NSM;;;;;N;;;;;
+2DFF;COMBINING CYRILLIC LETTER IOTIFIED BIG YUS;Mn;230;NSM;;;;;N;;;;;
+2E00;RIGHT ANGLE SUBSTITUTION MARKER;Po;0;ON;;;;;N;;;;;
+2E01;RIGHT ANGLE DOTTED SUBSTITUTION MARKER;Po;0;ON;;;;;N;;;;;
+2E02;LEFT SUBSTITUTION BRACKET;Pi;0;ON;;;;;Y;;;;;
+2E03;RIGHT SUBSTITUTION BRACKET;Pf;0;ON;;;;;Y;;;;;
+2E04;LEFT DOTTED SUBSTITUTION BRACKET;Pi;0;ON;;;;;Y;;;;;
+2E05;RIGHT DOTTED SUBSTITUTION BRACKET;Pf;0;ON;;;;;Y;;;;;
+2E06;RAISED INTERPOLATION MARKER;Po;0;ON;;;;;N;;;;;
+2E07;RAISED DOTTED INTERPOLATION MARKER;Po;0;ON;;;;;N;;;;;
+2E08;DOTTED TRANSPOSITION MARKER;Po;0;ON;;;;;N;;;;;
+2E09;LEFT TRANSPOSITION BRACKET;Pi;0;ON;;;;;Y;;;;;
+2E0A;RIGHT TRANSPOSITION BRACKET;Pf;0;ON;;;;;Y;;;;;
+2E0B;RAISED SQUARE;Po;0;ON;;;;;N;;;;;
+2E0C;LEFT RAISED OMISSION BRACKET;Pi;0;ON;;;;;Y;;;;;
+2E0D;RIGHT RAISED OMISSION BRACKET;Pf;0;ON;;;;;Y;;;;;
+2E0E;EDITORIAL CORONIS;Po;0;ON;;;;;N;;;;;
+2E0F;PARAGRAPHOS;Po;0;ON;;;;;N;;;;;
+2E10;FORKED PARAGRAPHOS;Po;0;ON;;;;;N;;;;;
+2E11;REVERSED FORKED PARAGRAPHOS;Po;0;ON;;;;;N;;;;;
+2E12;HYPODIASTOLE;Po;0;ON;;;;;N;;;;;
+2E13;DOTTED OBELOS;Po;0;ON;;;;;N;;;;;
+2E14;DOWNWARDS ANCORA;Po;0;ON;;;;;N;;;;;
+2E15;UPWARDS ANCORA;Po;0;ON;;;;;N;;;;;
+2E16;DOTTED RIGHT-POINTING ANGLE;Po;0;ON;;;;;N;;;;;
+2E17;DOUBLE OBLIQUE HYPHEN;Pd;0;ON;;;;;N;;;;;
+2E18;INVERTED INTERROBANG;Po;0;ON;;;;;N;;;;;
+2E19;PALM BRANCH;Po;0;ON;;;;;N;;;;;
+2E1A;HYPHEN WITH DIAERESIS;Pd;0;ON;;;;;N;;;;;
+2E1B;TILDE WITH RING ABOVE;Po;0;ON;;;;;N;;;;;
+2E1C;LEFT LOW PARAPHRASE BRACKET;Pi;0;ON;;;;;Y;;;;;
+2E1D;RIGHT LOW PARAPHRASE BRACKET;Pf;0;ON;;;;;Y;;;;;
+2E1E;TILDE WITH DOT ABOVE;Po;0;ON;;;;;N;;;;;
+2E1F;TILDE WITH DOT BELOW;Po;0;ON;;;;;N;;;;;
+2E20;LEFT VERTICAL BAR WITH QUILL;Pi;0;ON;;;;;Y;;;;;
+2E21;RIGHT VERTICAL BAR WITH QUILL;Pf;0;ON;;;;;Y;;;;;
+2E22;TOP LEFT HALF BRACKET;Ps;0;ON;;;;;Y;;;;;
+2E23;TOP RIGHT HALF BRACKET;Pe;0;ON;;;;;Y;;;;;
+2E24;BOTTOM LEFT HALF BRACKET;Ps;0;ON;;;;;Y;;;;;
+2E25;BOTTOM RIGHT HALF BRACKET;Pe;0;ON;;;;;Y;;;;;
+2E26;LEFT SIDEWAYS U BRACKET;Ps;0;ON;;;;;Y;;;;;
+2E27;RIGHT SIDEWAYS U BRACKET;Pe;0;ON;;;;;Y;;;;;
+2E28;LEFT DOUBLE PARENTHESIS;Ps;0;ON;;;;;Y;;;;;
+2E29;RIGHT DOUBLE PARENTHESIS;Pe;0;ON;;;;;Y;;;;;
+2E2A;TWO DOTS OVER ONE DOT PUNCTUATION;Po;0;ON;;;;;N;;;;;
+2E2B;ONE DOT OVER TWO DOTS PUNCTUATION;Po;0;ON;;;;;N;;;;;
+2E2C;SQUARED FOUR DOT PUNCTUATION;Po;0;ON;;;;;N;;;;;
+2E2D;FIVE DOT MARK;Po;0;ON;;;;;N;;;;;
+2E2E;REVERSED QUESTION MARK;Po;0;ON;;;;;N;;;;;
+2E2F;VERTICAL TILDE;Lm;0;ON;;;;;N;;;;;
+2E30;RING POINT;Po;0;ON;;;;;N;;;;;
+2E31;WORD SEPARATOR MIDDLE DOT;Po;0;ON;;;;;N;;;;;
+2E32;TURNED COMMA;Po;0;ON;;;;;N;;;;;
+2E33;RAISED DOT;Po;0;ON;;;;;N;;;;;
+2E34;RAISED COMMA;Po;0;ON;;;;;N;;;;;
+2E35;TURNED SEMICOLON;Po;0;ON;;;;;N;;;;;
+2E36;DAGGER WITH LEFT GUARD;Po;0;ON;;;;;N;;;;;
+2E37;DAGGER WITH RIGHT GUARD;Po;0;ON;;;;;N;;;;;
+2E38;TURNED DAGGER;Po;0;ON;;;;;N;;;;;
+2E39;TOP HALF SECTION SIGN;Po;0;ON;;;;;N;;;;;
+2E3A;TWO-EM DASH;Pd;0;ON;;;;;N;;;;;
+2E3B;THREE-EM DASH;Pd;0;ON;;;;;N;;;;;
+2E80;CJK RADICAL REPEAT;So;0;ON;;;;;N;;;;;
+2E81;CJK RADICAL CLIFF;So;0;ON;;;;;N;;;;;
+2E82;CJK RADICAL SECOND ONE;So;0;ON;;;;;N;;;;;
+2E83;CJK RADICAL SECOND TWO;So;0;ON;;;;;N;;;;;
+2E84;CJK RADICAL SECOND THREE;So;0;ON;;;;;N;;;;;
+2E85;CJK RADICAL PERSON;So;0;ON;;;;;N;;;;;
+2E86;CJK RADICAL BOX;So;0;ON;;;;;N;;;;;
+2E87;CJK RADICAL TABLE;So;0;ON;;;;;N;;;;;
+2E88;CJK RADICAL KNIFE ONE;So;0;ON;;;;;N;;;;;
+2E89;CJK RADICAL KNIFE TWO;So;0;ON;;;;;N;;;;;
+2E8A;CJK RADICAL DIVINATION;So;0;ON;;;;;N;;;;;
+2E8B;CJK RADICAL SEAL;So;0;ON;;;;;N;;;;;
+2E8C;CJK RADICAL SMALL ONE;So;0;ON;;;;;N;;;;;
+2E8D;CJK RADICAL SMALL TWO;So;0;ON;;;;;N;;;;;
+2E8E;CJK RADICAL LAME ONE;So;0;ON;;;;;N;;;;;
+2E8F;CJK RADICAL LAME TWO;So;0;ON;;;;;N;;;;;
+2E90;CJK RADICAL LAME THREE;So;0;ON;;;;;N;;;;;
+2E91;CJK RADICAL LAME FOUR;So;0;ON;;;;;N;;;;;
+2E92;CJK RADICAL SNAKE;So;0;ON;;;;;N;;;;;
+2E93;CJK RADICAL THREAD;So;0;ON;;;;;N;;;;;
+2E94;CJK RADICAL SNOUT ONE;So;0;ON;;;;;N;;;;;
+2E95;CJK RADICAL SNOUT TWO;So;0;ON;;;;;N;;;;;
+2E96;CJK RADICAL HEART ONE;So;0;ON;;;;;N;;;;;
+2E97;CJK RADICAL HEART TWO;So;0;ON;;;;;N;;;;;
+2E98;CJK RADICAL HAND;So;0;ON;;;;;N;;;;;
+2E99;CJK RADICAL RAP;So;0;ON;;;;;N;;;;;
+2E9B;CJK RADICAL CHOKE;So;0;ON;;;;;N;;;;;
+2E9C;CJK RADICAL SUN;So;0;ON;;;;;N;;;;;
+2E9D;CJK RADICAL MOON;So;0;ON;;;;;N;;;;;
+2E9E;CJK RADICAL DEATH;So;0;ON;;;;;N;;;;;
+2E9F;CJK RADICAL MOTHER;So;0;ON;<compat> 6BCD;;;;N;;;;;
+2EA0;CJK RADICAL CIVILIAN;So;0;ON;;;;;N;;;;;
+2EA1;CJK RADICAL WATER ONE;So;0;ON;;;;;N;;;;;
+2EA2;CJK RADICAL WATER TWO;So;0;ON;;;;;N;;;;;
+2EA3;CJK RADICAL FIRE;So;0;ON;;;;;N;;;;;
+2EA4;CJK RADICAL PAW ONE;So;0;ON;;;;;N;;;;;
+2EA5;CJK RADICAL PAW TWO;So;0;ON;;;;;N;;;;;
+2EA6;CJK RADICAL SIMPLIFIED HALF TREE TRUNK;So;0;ON;;;;;N;;;;;
+2EA7;CJK RADICAL COW;So;0;ON;;;;;N;;;;;
+2EA8;CJK RADICAL DOG;So;0;ON;;;;;N;;;;;
+2EA9;CJK RADICAL JADE;So;0;ON;;;;;N;;;;;
+2EAA;CJK RADICAL BOLT OF CLOTH;So;0;ON;;;;;N;;;;;
+2EAB;CJK RADICAL EYE;So;0;ON;;;;;N;;;;;
+2EAC;CJK RADICAL SPIRIT ONE;So;0;ON;;;;;N;;;;;
+2EAD;CJK RADICAL SPIRIT TWO;So;0;ON;;;;;N;;;;;
+2EAE;CJK RADICAL BAMBOO;So;0;ON;;;;;N;;;;;
+2EAF;CJK RADICAL SILK;So;0;ON;;;;;N;;;;;
+2EB0;CJK RADICAL C-SIMPLIFIED SILK;So;0;ON;;;;;N;;;;;
+2EB1;CJK RADICAL NET ONE;So;0;ON;;;;;N;;;;;
+2EB2;CJK RADICAL NET TWO;So;0;ON;;;;;N;;;;;
+2EB3;CJK RADICAL NET THREE;So;0;ON;;;;;N;;;;;
+2EB4;CJK RADICAL NET FOUR;So;0;ON;;;;;N;;;;;
+2EB5;CJK RADICAL MESH;So;0;ON;;;;;N;;;;;
+2EB6;CJK RADICAL SHEEP;So;0;ON;;;;;N;;;;;
+2EB7;CJK RADICAL RAM;So;0;ON;;;;;N;;;;;
+2EB8;CJK RADICAL EWE;So;0;ON;;;;;N;;;;;
+2EB9;CJK RADICAL OLD;So;0;ON;;;;;N;;;;;
+2EBA;CJK RADICAL BRUSH ONE;So;0;ON;;;;;N;;;;;
+2EBB;CJK RADICAL BRUSH TWO;So;0;ON;;;;;N;;;;;
+2EBC;CJK RADICAL MEAT;So;0;ON;;;;;N;;;;;
+2EBD;CJK RADICAL MORTAR;So;0;ON;;;;;N;;;;;
+2EBE;CJK RADICAL GRASS ONE;So;0;ON;;;;;N;;;;;
+2EBF;CJK RADICAL GRASS TWO;So;0;ON;;;;;N;;;;;
+2EC0;CJK RADICAL GRASS THREE;So;0;ON;;;;;N;;;;;
+2EC1;CJK RADICAL TIGER;So;0;ON;;;;;N;;;;;
+2EC2;CJK RADICAL CLOTHES;So;0;ON;;;;;N;;;;;
+2EC3;CJK RADICAL WEST ONE;So;0;ON;;;;;N;;;;;
+2EC4;CJK RADICAL WEST TWO;So;0;ON;;;;;N;;;;;
+2EC5;CJK RADICAL C-SIMPLIFIED SEE;So;0;ON;;;;;N;;;;;
+2EC6;CJK RADICAL SIMPLIFIED HORN;So;0;ON;;;;;N;;;;;
+2EC7;CJK RADICAL HORN;So;0;ON;;;;;N;;;;;
+2EC8;CJK RADICAL C-SIMPLIFIED SPEECH;So;0;ON;;;;;N;;;;;
+2EC9;CJK RADICAL C-SIMPLIFIED SHELL;So;0;ON;;;;;N;;;;;
+2ECA;CJK RADICAL FOOT;So;0;ON;;;;;N;;;;;
+2ECB;CJK RADICAL C-SIMPLIFIED CART;So;0;ON;;;;;N;;;;;
+2ECC;CJK RADICAL SIMPLIFIED WALK;So;0;ON;;;;;N;;;;;
+2ECD;CJK RADICAL WALK ONE;So;0;ON;;;;;N;;;;;
+2ECE;CJK RADICAL WALK TWO;So;0;ON;;;;;N;;;;;
+2ECF;CJK RADICAL CITY;So;0;ON;;;;;N;;;;;
+2ED0;CJK RADICAL C-SIMPLIFIED GOLD;So;0;ON;;;;;N;;;;;
+2ED1;CJK RADICAL LONG ONE;So;0;ON;;;;;N;;;;;
+2ED2;CJK RADICAL LONG TWO;So;0;ON;;;;;N;;;;;
+2ED3;CJK RADICAL C-SIMPLIFIED LONG;So;0;ON;;;;;N;;;;;
+2ED4;CJK RADICAL C-SIMPLIFIED GATE;So;0;ON;;;;;N;;;;;
+2ED5;CJK RADICAL MOUND ONE;So;0;ON;;;;;N;;;;;
+2ED6;CJK RADICAL MOUND TWO;So;0;ON;;;;;N;;;;;
+2ED7;CJK RADICAL RAIN;So;0;ON;;;;;N;;;;;
+2ED8;CJK RADICAL BLUE;So;0;ON;;;;;N;;;;;
+2ED9;CJK RADICAL C-SIMPLIFIED TANNED LEATHER;So;0;ON;;;;;N;;;;;
+2EDA;CJK RADICAL C-SIMPLIFIED LEAF;So;0;ON;;;;;N;;;;;
+2EDB;CJK RADICAL C-SIMPLIFIED WIND;So;0;ON;;;;;N;;;;;
+2EDC;CJK RADICAL C-SIMPLIFIED FLY;So;0;ON;;;;;N;;;;;
+2EDD;CJK RADICAL EAT ONE;So;0;ON;;;;;N;;;;;
+2EDE;CJK RADICAL EAT TWO;So;0;ON;;;;;N;;;;;
+2EDF;CJK RADICAL EAT THREE;So;0;ON;;;;;N;;;;;
+2EE0;CJK RADICAL C-SIMPLIFIED EAT;So;0;ON;;;;;N;;;;;
+2EE1;CJK RADICAL HEAD;So;0;ON;;;;;N;;;;;
+2EE2;CJK RADICAL C-SIMPLIFIED HORSE;So;0;ON;;;;;N;;;;;
+2EE3;CJK RADICAL BONE;So;0;ON;;;;;N;;;;;
+2EE4;CJK RADICAL GHOST;So;0;ON;;;;;N;;;;;
+2EE5;CJK RADICAL C-SIMPLIFIED FISH;So;0;ON;;;;;N;;;;;
+2EE6;CJK RADICAL C-SIMPLIFIED BIRD;So;0;ON;;;;;N;;;;;
+2EE7;CJK RADICAL C-SIMPLIFIED SALT;So;0;ON;;;;;N;;;;;
+2EE8;CJK RADICAL SIMPLIFIED WHEAT;So;0;ON;;;;;N;;;;;
+2EE9;CJK RADICAL SIMPLIFIED YELLOW;So;0;ON;;;;;N;;;;;
+2EEA;CJK RADICAL C-SIMPLIFIED FROG;So;0;ON;;;;;N;;;;;
+2EEB;CJK RADICAL J-SIMPLIFIED EVEN;So;0;ON;;;;;N;;;;;
+2EEC;CJK RADICAL C-SIMPLIFIED EVEN;So;0;ON;;;;;N;;;;;
+2EED;CJK RADICAL J-SIMPLIFIED TOOTH;So;0;ON;;;;;N;;;;;
+2EEE;CJK RADICAL C-SIMPLIFIED TOOTH;So;0;ON;;;;;N;;;;;
+2EEF;CJK RADICAL J-SIMPLIFIED DRAGON;So;0;ON;;;;;N;;;;;
+2EF0;CJK RADICAL C-SIMPLIFIED DRAGON;So;0;ON;;;;;N;;;;;
+2EF1;CJK RADICAL TURTLE;So;0;ON;;;;;N;;;;;
+2EF2;CJK RADICAL J-SIMPLIFIED TURTLE;So;0;ON;;;;;N;;;;;
+2EF3;CJK RADICAL C-SIMPLIFIED TURTLE;So;0;ON;<compat> 9F9F;;;;N;;;;;
+2F00;KANGXI RADICAL ONE;So;0;ON;<compat> 4E00;;;;N;;;;;
+2F01;KANGXI RADICAL LINE;So;0;ON;<compat> 4E28;;;;N;;;;;
+2F02;KANGXI RADICAL DOT;So;0;ON;<compat> 4E36;;;;N;;;;;
+2F03;KANGXI RADICAL SLASH;So;0;ON;<compat> 4E3F;;;;N;;;;;
+2F04;KANGXI RADICAL SECOND;So;0;ON;<compat> 4E59;;;;N;;;;;
+2F05;KANGXI RADICAL HOOK;So;0;ON;<compat> 4E85;;;;N;;;;;
+2F06;KANGXI RADICAL TWO;So;0;ON;<compat> 4E8C;;;;N;;;;;
+2F07;KANGXI RADICAL LID;So;0;ON;<compat> 4EA0;;;;N;;;;;
+2F08;KANGXI RADICAL MAN;So;0;ON;<compat> 4EBA;;;;N;;;;;
+2F09;KANGXI RADICAL LEGS;So;0;ON;<compat> 513F;;;;N;;;;;
+2F0A;KANGXI RADICAL ENTER;So;0;ON;<compat> 5165;;;;N;;;;;
+2F0B;KANGXI RADICAL EIGHT;So;0;ON;<compat> 516B;;;;N;;;;;
+2F0C;KANGXI RADICAL DOWN BOX;So;0;ON;<compat> 5182;;;;N;;;;;
+2F0D;KANGXI RADICAL COVER;So;0;ON;<compat> 5196;;;;N;;;;;
+2F0E;KANGXI RADICAL ICE;So;0;ON;<compat> 51AB;;;;N;;;;;
+2F0F;KANGXI RADICAL TABLE;So;0;ON;<compat> 51E0;;;;N;;;;;
+2F10;KANGXI RADICAL OPEN BOX;So;0;ON;<compat> 51F5;;;;N;;;;;
+2F11;KANGXI RADICAL KNIFE;So;0;ON;<compat> 5200;;;;N;;;;;
+2F12;KANGXI RADICAL POWER;So;0;ON;<compat> 529B;;;;N;;;;;
+2F13;KANGXI RADICAL WRAP;So;0;ON;<compat> 52F9;;;;N;;;;;
+2F14;KANGXI RADICAL SPOON;So;0;ON;<compat> 5315;;;;N;;;;;
+2F15;KANGXI RADICAL RIGHT OPEN BOX;So;0;ON;<compat> 531A;;;;N;;;;;
+2F16;KANGXI RADICAL HIDING ENCLOSURE;So;0;ON;<compat> 5338;;;;N;;;;;
+2F17;KANGXI RADICAL TEN;So;0;ON;<compat> 5341;;;;N;;;;;
+2F18;KANGXI RADICAL DIVINATION;So;0;ON;<compat> 535C;;;;N;;;;;
+2F19;KANGXI RADICAL SEAL;So;0;ON;<compat> 5369;;;;N;;;;;
+2F1A;KANGXI RADICAL CLIFF;So;0;ON;<compat> 5382;;;;N;;;;;
+2F1B;KANGXI RADICAL PRIVATE;So;0;ON;<compat> 53B6;;;;N;;;;;
+2F1C;KANGXI RADICAL AGAIN;So;0;ON;<compat> 53C8;;;;N;;;;;
+2F1D;KANGXI RADICAL MOUTH;So;0;ON;<compat> 53E3;;;;N;;;;;
+2F1E;KANGXI RADICAL ENCLOSURE;So;0;ON;<compat> 56D7;;;;N;;;;;
+2F1F;KANGXI RADICAL EARTH;So;0;ON;<compat> 571F;;;;N;;;;;
+2F20;KANGXI RADICAL SCHOLAR;So;0;ON;<compat> 58EB;;;;N;;;;;
+2F21;KANGXI RADICAL GO;So;0;ON;<compat> 5902;;;;N;;;;;
+2F22;KANGXI RADICAL GO SLOWLY;So;0;ON;<compat> 590A;;;;N;;;;;
+2F23;KANGXI RADICAL EVENING;So;0;ON;<compat> 5915;;;;N;;;;;
+2F24;KANGXI RADICAL BIG;So;0;ON;<compat> 5927;;;;N;;;;;
+2F25;KANGXI RADICAL WOMAN;So;0;ON;<compat> 5973;;;;N;;;;;
+2F26;KANGXI RADICAL CHILD;So;0;ON;<compat> 5B50;;;;N;;;;;
+2F27;KANGXI RADICAL ROOF;So;0;ON;<compat> 5B80;;;;N;;;;;
+2F28;KANGXI RADICAL INCH;So;0;ON;<compat> 5BF8;;;;N;;;;;
+2F29;KANGXI RADICAL SMALL;So;0;ON;<compat> 5C0F;;;;N;;;;;
+2F2A;KANGXI RADICAL LAME;So;0;ON;<compat> 5C22;;;;N;;;;;
+2F2B;KANGXI RADICAL CORPSE;So;0;ON;<compat> 5C38;;;;N;;;;;
+2F2C;KANGXI RADICAL SPROUT;So;0;ON;<compat> 5C6E;;;;N;;;;;
+2F2D;KANGXI RADICAL MOUNTAIN;So;0;ON;<compat> 5C71;;;;N;;;;;
+2F2E;KANGXI RADICAL RIVER;So;0;ON;<compat> 5DDB;;;;N;;;;;
+2F2F;KANGXI RADICAL WORK;So;0;ON;<compat> 5DE5;;;;N;;;;;
+2F30;KANGXI RADICAL ONESELF;So;0;ON;<compat> 5DF1;;;;N;;;;;
+2F31;KANGXI RADICAL TURBAN;So;0;ON;<compat> 5DFE;;;;N;;;;;
+2F32;KANGXI RADICAL DRY;So;0;ON;<compat> 5E72;;;;N;;;;;
+2F33;KANGXI RADICAL SHORT THREAD;So;0;ON;<compat> 5E7A;;;;N;;;;;
+2F34;KANGXI RADICAL DOTTED CLIFF;So;0;ON;<compat> 5E7F;;;;N;;;;;
+2F35;KANGXI RADICAL LONG STRIDE;So;0;ON;<compat> 5EF4;;;;N;;;;;
+2F36;KANGXI RADICAL TWO HANDS;So;0;ON;<compat> 5EFE;;;;N;;;;;
+2F37;KANGXI RADICAL SHOOT;So;0;ON;<compat> 5F0B;;;;N;;;;;
+2F38;KANGXI RADICAL BOW;So;0;ON;<compat> 5F13;;;;N;;;;;
+2F39;KANGXI RADICAL SNOUT;So;0;ON;<compat> 5F50;;;;N;;;;;
+2F3A;KANGXI RADICAL BRISTLE;So;0;ON;<compat> 5F61;;;;N;;;;;
+2F3B;KANGXI RADICAL STEP;So;0;ON;<compat> 5F73;;;;N;;;;;
+2F3C;KANGXI RADICAL HEART;So;0;ON;<compat> 5FC3;;;;N;;;;;
+2F3D;KANGXI RADICAL HALBERD;So;0;ON;<compat> 6208;;;;N;;;;;
+2F3E;KANGXI RADICAL DOOR;So;0;ON;<compat> 6236;;;;N;;;;;
+2F3F;KANGXI RADICAL HAND;So;0;ON;<compat> 624B;;;;N;;;;;
+2F40;KANGXI RADICAL BRANCH;So;0;ON;<compat> 652F;;;;N;;;;;
+2F41;KANGXI RADICAL RAP;So;0;ON;<compat> 6534;;;;N;;;;;
+2F42;KANGXI RADICAL SCRIPT;So;0;ON;<compat> 6587;;;;N;;;;;
+2F43;KANGXI RADICAL DIPPER;So;0;ON;<compat> 6597;;;;N;;;;;
+2F44;KANGXI RADICAL AXE;So;0;ON;<compat> 65A4;;;;N;;;;;
+2F45;KANGXI RADICAL SQUARE;So;0;ON;<compat> 65B9;;;;N;;;;;
+2F46;KANGXI RADICAL NOT;So;0;ON;<compat> 65E0;;;;N;;;;;
+2F47;KANGXI RADICAL SUN;So;0;ON;<compat> 65E5;;;;N;;;;;
+2F48;KANGXI RADICAL SAY;So;0;ON;<compat> 66F0;;;;N;;;;;
+2F49;KANGXI RADICAL MOON;So;0;ON;<compat> 6708;;;;N;;;;;
+2F4A;KANGXI RADICAL TREE;So;0;ON;<compat> 6728;;;;N;;;;;
+2F4B;KANGXI RADICAL LACK;So;0;ON;<compat> 6B20;;;;N;;;;;
+2F4C;KANGXI RADICAL STOP;So;0;ON;<compat> 6B62;;;;N;;;;;
+2F4D;KANGXI RADICAL DEATH;So;0;ON;<compat> 6B79;;;;N;;;;;
+2F4E;KANGXI RADICAL WEAPON;So;0;ON;<compat> 6BB3;;;;N;;;;;
+2F4F;KANGXI RADICAL DO NOT;So;0;ON;<compat> 6BCB;;;;N;;;;;
+2F50;KANGXI RADICAL COMPARE;So;0;ON;<compat> 6BD4;;;;N;;;;;
+2F51;KANGXI RADICAL FUR;So;0;ON;<compat> 6BDB;;;;N;;;;;
+2F52;KANGXI RADICAL CLAN;So;0;ON;<compat> 6C0F;;;;N;;;;;
+2F53;KANGXI RADICAL STEAM;So;0;ON;<compat> 6C14;;;;N;;;;;
+2F54;KANGXI RADICAL WATER;So;0;ON;<compat> 6C34;;;;N;;;;;
+2F55;KANGXI RADICAL FIRE;So;0;ON;<compat> 706B;;;;N;;;;;
+2F56;KANGXI RADICAL CLAW;So;0;ON;<compat> 722A;;;;N;;;;;
+2F57;KANGXI RADICAL FATHER;So;0;ON;<compat> 7236;;;;N;;;;;
+2F58;KANGXI RADICAL DOUBLE X;So;0;ON;<compat> 723B;;;;N;;;;;
+2F59;KANGXI RADICAL HALF TREE TRUNK;So;0;ON;<compat> 723F;;;;N;;;;;
+2F5A;KANGXI RADICAL SLICE;So;0;ON;<compat> 7247;;;;N;;;;;
+2F5B;KANGXI RADICAL FANG;So;0;ON;<compat> 7259;;;;N;;;;;
+2F5C;KANGXI RADICAL COW;So;0;ON;<compat> 725B;;;;N;;;;;
+2F5D;KANGXI RADICAL DOG;So;0;ON;<compat> 72AC;;;;N;;;;;
+2F5E;KANGXI RADICAL PROFOUND;So;0;ON;<compat> 7384;;;;N;;;;;
+2F5F;KANGXI RADICAL JADE;So;0;ON;<compat> 7389;;;;N;;;;;
+2F60;KANGXI RADICAL MELON;So;0;ON;<compat> 74DC;;;;N;;;;;
+2F61;KANGXI RADICAL TILE;So;0;ON;<compat> 74E6;;;;N;;;;;
+2F62;KANGXI RADICAL SWEET;So;0;ON;<compat> 7518;;;;N;;;;;
+2F63;KANGXI RADICAL LIFE;So;0;ON;<compat> 751F;;;;N;;;;;
+2F64;KANGXI RADICAL USE;So;0;ON;<compat> 7528;;;;N;;;;;
+2F65;KANGXI RADICAL FIELD;So;0;ON;<compat> 7530;;;;N;;;;;
+2F66;KANGXI RADICAL BOLT OF CLOTH;So;0;ON;<compat> 758B;;;;N;;;;;
+2F67;KANGXI RADICAL SICKNESS;So;0;ON;<compat> 7592;;;;N;;;;;
+2F68;KANGXI RADICAL DOTTED TENT;So;0;ON;<compat> 7676;;;;N;;;;;
+2F69;KANGXI RADICAL WHITE;So;0;ON;<compat> 767D;;;;N;;;;;
+2F6A;KANGXI RADICAL SKIN;So;0;ON;<compat> 76AE;;;;N;;;;;
+2F6B;KANGXI RADICAL DISH;So;0;ON;<compat> 76BF;;;;N;;;;;
+2F6C;KANGXI RADICAL EYE;So;0;ON;<compat> 76EE;;;;N;;;;;
+2F6D;KANGXI RADICAL SPEAR;So;0;ON;<compat> 77DB;;;;N;;;;;
+2F6E;KANGXI RADICAL ARROW;So;0;ON;<compat> 77E2;;;;N;;;;;
+2F6F;KANGXI RADICAL STONE;So;0;ON;<compat> 77F3;;;;N;;;;;
+2F70;KANGXI RADICAL SPIRIT;So;0;ON;<compat> 793A;;;;N;;;;;
+2F71;KANGXI RADICAL TRACK;So;0;ON;<compat> 79B8;;;;N;;;;;
+2F72;KANGXI RADICAL GRAIN;So;0;ON;<compat> 79BE;;;;N;;;;;
+2F73;KANGXI RADICAL CAVE;So;0;ON;<compat> 7A74;;;;N;;;;;
+2F74;KANGXI RADICAL STAND;So;0;ON;<compat> 7ACB;;;;N;;;;;
+2F75;KANGXI RADICAL BAMBOO;So;0;ON;<compat> 7AF9;;;;N;;;;;
+2F76;KANGXI RADICAL RICE;So;0;ON;<compat> 7C73;;;;N;;;;;
+2F77;KANGXI RADICAL SILK;So;0;ON;<compat> 7CF8;;;;N;;;;;
+2F78;KANGXI RADICAL JAR;So;0;ON;<compat> 7F36;;;;N;;;;;
+2F79;KANGXI RADICAL NET;So;0;ON;<compat> 7F51;;;;N;;;;;
+2F7A;KANGXI RADICAL SHEEP;So;0;ON;<compat> 7F8A;;;;N;;;;;
+2F7B;KANGXI RADICAL FEATHER;So;0;ON;<compat> 7FBD;;;;N;;;;;
+2F7C;KANGXI RADICAL OLD;So;0;ON;<compat> 8001;;;;N;;;;;
+2F7D;KANGXI RADICAL AND;So;0;ON;<compat> 800C;;;;N;;;;;
+2F7E;KANGXI RADICAL PLOW;So;0;ON;<compat> 8012;;;;N;;;;;
+2F7F;KANGXI RADICAL EAR;So;0;ON;<compat> 8033;;;;N;;;;;
+2F80;KANGXI RADICAL BRUSH;So;0;ON;<compat> 807F;;;;N;;;;;
+2F81;KANGXI RADICAL MEAT;So;0;ON;<compat> 8089;;;;N;;;;;
+2F82;KANGXI RADICAL MINISTER;So;0;ON;<compat> 81E3;;;;N;;;;;
+2F83;KANGXI RADICAL SELF;So;0;ON;<compat> 81EA;;;;N;;;;;
+2F84;KANGXI RADICAL ARRIVE;So;0;ON;<compat> 81F3;;;;N;;;;;
+2F85;KANGXI RADICAL MORTAR;So;0;ON;<compat> 81FC;;;;N;;;;;
+2F86;KANGXI RADICAL TONGUE;So;0;ON;<compat> 820C;;;;N;;;;;
+2F87;KANGXI RADICAL OPPOSE;So;0;ON;<compat> 821B;;;;N;;;;;
+2F88;KANGXI RADICAL BOAT;So;0;ON;<compat> 821F;;;;N;;;;;
+2F89;KANGXI RADICAL STOPPING;So;0;ON;<compat> 826E;;;;N;;;;;
+2F8A;KANGXI RADICAL COLOR;So;0;ON;<compat> 8272;;;;N;;;;;
+2F8B;KANGXI RADICAL GRASS;So;0;ON;<compat> 8278;;;;N;;;;;
+2F8C;KANGXI RADICAL TIGER;So;0;ON;<compat> 864D;;;;N;;;;;
+2F8D;KANGXI RADICAL INSECT;So;0;ON;<compat> 866B;;;;N;;;;;
+2F8E;KANGXI RADICAL BLOOD;So;0;ON;<compat> 8840;;;;N;;;;;
+2F8F;KANGXI RADICAL WALK ENCLOSURE;So;0;ON;<compat> 884C;;;;N;;;;;
+2F90;KANGXI RADICAL CLOTHES;So;0;ON;<compat> 8863;;;;N;;;;;
+2F91;KANGXI RADICAL WEST;So;0;ON;<compat> 897E;;;;N;;;;;
+2F92;KANGXI RADICAL SEE;So;0;ON;<compat> 898B;;;;N;;;;;
+2F93;KANGXI RADICAL HORN;So;0;ON;<compat> 89D2;;;;N;;;;;
+2F94;KANGXI RADICAL SPEECH;So;0;ON;<compat> 8A00;;;;N;;;;;
+2F95;KANGXI RADICAL VALLEY;So;0;ON;<compat> 8C37;;;;N;;;;;
+2F96;KANGXI RADICAL BEAN;So;0;ON;<compat> 8C46;;;;N;;;;;
+2F97;KANGXI RADICAL PIG;So;0;ON;<compat> 8C55;;;;N;;;;;
+2F98;KANGXI RADICAL BADGER;So;0;ON;<compat> 8C78;;;;N;;;;;
+2F99;KANGXI RADICAL SHELL;So;0;ON;<compat> 8C9D;;;;N;;;;;
+2F9A;KANGXI RADICAL RED;So;0;ON;<compat> 8D64;;;;N;;;;;
+2F9B;KANGXI RADICAL RUN;So;0;ON;<compat> 8D70;;;;N;;;;;
+2F9C;KANGXI RADICAL FOOT;So;0;ON;<compat> 8DB3;;;;N;;;;;
+2F9D;KANGXI RADICAL BODY;So;0;ON;<compat> 8EAB;;;;N;;;;;
+2F9E;KANGXI RADICAL CART;So;0;ON;<compat> 8ECA;;;;N;;;;;
+2F9F;KANGXI RADICAL BITTER;So;0;ON;<compat> 8F9B;;;;N;;;;;
+2FA0;KANGXI RADICAL MORNING;So;0;ON;<compat> 8FB0;;;;N;;;;;
+2FA1;KANGXI RADICAL WALK;So;0;ON;<compat> 8FB5;;;;N;;;;;
+2FA2;KANGXI RADICAL CITY;So;0;ON;<compat> 9091;;;;N;;;;;
+2FA3;KANGXI RADICAL WINE;So;0;ON;<compat> 9149;;;;N;;;;;
+2FA4;KANGXI RADICAL DISTINGUISH;So;0;ON;<compat> 91C6;;;;N;;;;;
+2FA5;KANGXI RADICAL VILLAGE;So;0;ON;<compat> 91CC;;;;N;;;;;
+2FA6;KANGXI RADICAL GOLD;So;0;ON;<compat> 91D1;;;;N;;;;;
+2FA7;KANGXI RADICAL LONG;So;0;ON;<compat> 9577;;;;N;;;;;
+2FA8;KANGXI RADICAL GATE;So;0;ON;<compat> 9580;;;;N;;;;;
+2FA9;KANGXI RADICAL MOUND;So;0;ON;<compat> 961C;;;;N;;;;;
+2FAA;KANGXI RADICAL SLAVE;So;0;ON;<compat> 96B6;;;;N;;;;;
+2FAB;KANGXI RADICAL SHORT TAILED BIRD;So;0;ON;<compat> 96B9;;;;N;;;;;
+2FAC;KANGXI RADICAL RAIN;So;0;ON;<compat> 96E8;;;;N;;;;;
+2FAD;KANGXI RADICAL BLUE;So;0;ON;<compat> 9751;;;;N;;;;;
+2FAE;KANGXI RADICAL WRONG;So;0;ON;<compat> 975E;;;;N;;;;;
+2FAF;KANGXI RADICAL FACE;So;0;ON;<compat> 9762;;;;N;;;;;
+2FB0;KANGXI RADICAL LEATHER;So;0;ON;<compat> 9769;;;;N;;;;;
+2FB1;KANGXI RADICAL TANNED LEATHER;So;0;ON;<compat> 97CB;;;;N;;;;;
+2FB2;KANGXI RADICAL LEEK;So;0;ON;<compat> 97ED;;;;N;;;;;
+2FB3;KANGXI RADICAL SOUND;So;0;ON;<compat> 97F3;;;;N;;;;;
+2FB4;KANGXI RADICAL LEAF;So;0;ON;<compat> 9801;;;;N;;;;;
+2FB5;KANGXI RADICAL WIND;So;0;ON;<compat> 98A8;;;;N;;;;;
+2FB6;KANGXI RADICAL FLY;So;0;ON;<compat> 98DB;;;;N;;;;;
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+2FBB;KANGXI RADICAL BONE;So;0;ON;<compat> 9AA8;;;;N;;;;;
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+2FBD;KANGXI RADICAL HAIR;So;0;ON;<compat> 9ADF;;;;N;;;;;
+2FBE;KANGXI RADICAL FIGHT;So;0;ON;<compat> 9B25;;;;N;;;;;
+2FBF;KANGXI RADICAL SACRIFICIAL WINE;So;0;ON;<compat> 9B2F;;;;N;;;;;
+2FC0;KANGXI RADICAL CAULDRON;So;0;ON;<compat> 9B32;;;;N;;;;;
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+2FD5;KANGXI RADICAL FLUTE;So;0;ON;<compat> 9FA0;;;;N;;;;;
+2FF0;IDEOGRAPHIC DESCRIPTION CHARACTER LEFT TO RIGHT;So;0;ON;;;;;N;;;;;
+2FF1;IDEOGRAPHIC DESCRIPTION CHARACTER ABOVE TO BELOW;So;0;ON;;;;;N;;;;;
+2FF2;IDEOGRAPHIC DESCRIPTION CHARACTER LEFT TO MIDDLE AND RIGHT;So;0;ON;;;;;N;;;;;
+2FF3;IDEOGRAPHIC DESCRIPTION CHARACTER ABOVE TO MIDDLE AND BELOW;So;0;ON;;;;;N;;;;;
+2FF4;IDEOGRAPHIC DESCRIPTION CHARACTER FULL SURROUND;So;0;ON;;;;;N;;;;;
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+2FF9;IDEOGRAPHIC DESCRIPTION CHARACTER SURROUND FROM UPPER RIGHT;So;0;ON;;;;;N;;;;;
+2FFA;IDEOGRAPHIC DESCRIPTION CHARACTER SURROUND FROM LOWER LEFT;So;0;ON;;;;;N;;;;;
+2FFB;IDEOGRAPHIC DESCRIPTION CHARACTER OVERLAID;So;0;ON;;;;;N;;;;;
+3000;IDEOGRAPHIC SPACE;Zs;0;WS;<wide> 0020;;;;N;;;;;
+3001;IDEOGRAPHIC COMMA;Po;0;ON;;;;;N;;;;;
+3002;IDEOGRAPHIC FULL STOP;Po;0;ON;;;;;N;IDEOGRAPHIC PERIOD;;;;
+3003;DITTO MARK;Po;0;ON;;;;;N;;;;;
+3004;JAPANESE INDUSTRIAL STANDARD SYMBOL;So;0;ON;;;;;N;;;;;
+3005;IDEOGRAPHIC ITERATION MARK;Lm;0;L;;;;;N;;;;;
+3006;IDEOGRAPHIC CLOSING MARK;Lo;0;L;;;;;N;;;;;
+3007;IDEOGRAPHIC NUMBER ZERO;Nl;0;L;;;;0;N;;;;;
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+300C;LEFT CORNER BRACKET;Ps;0;ON;;;;;Y;OPENING CORNER BRACKET;;;;
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+300E;LEFT WHITE CORNER BRACKET;Ps;0;ON;;;;;Y;OPENING WHITE CORNER BRACKET;;;;
+300F;RIGHT WHITE CORNER BRACKET;Pe;0;ON;;;;;Y;CLOSING WHITE CORNER BRACKET;;;;
+3010;LEFT BLACK LENTICULAR BRACKET;Ps;0;ON;;;;;Y;OPENING BLACK LENTICULAR BRACKET;;;;
+3011;RIGHT BLACK LENTICULAR BRACKET;Pe;0;ON;;;;;Y;CLOSING BLACK LENTICULAR BRACKET;;;;
+3012;POSTAL MARK;So;0;ON;;;;;N;;;;;
+3013;GETA MARK;So;0;ON;;;;;N;;;;;
+3014;LEFT TORTOISE SHELL BRACKET;Ps;0;ON;;;;;Y;OPENING TORTOISE SHELL BRACKET;;;;
+3015;RIGHT TORTOISE SHELL BRACKET;Pe;0;ON;;;;;Y;CLOSING TORTOISE SHELL BRACKET;;;;
+3016;LEFT WHITE LENTICULAR BRACKET;Ps;0;ON;;;;;Y;OPENING WHITE LENTICULAR BRACKET;;;;
+3017;RIGHT WHITE LENTICULAR BRACKET;Pe;0;ON;;;;;Y;CLOSING WHITE LENTICULAR BRACKET;;;;
+3018;LEFT WHITE TORTOISE SHELL BRACKET;Ps;0;ON;;;;;Y;OPENING WHITE TORTOISE SHELL BRACKET;;;;
+3019;RIGHT WHITE TORTOISE SHELL BRACKET;Pe;0;ON;;;;;Y;CLOSING WHITE TORTOISE SHELL BRACKET;;;;
+301A;LEFT WHITE SQUARE BRACKET;Ps;0;ON;;;;;Y;OPENING WHITE SQUARE BRACKET;;;;
+301B;RIGHT WHITE SQUARE BRACKET;Pe;0;ON;;;;;Y;CLOSING WHITE SQUARE BRACKET;;;;
+301C;WAVE DASH;Pd;0;ON;;;;;N;;;;;
+301D;REVERSED DOUBLE PRIME QUOTATION MARK;Ps;0;ON;;;;;N;;;;;
+301E;DOUBLE PRIME QUOTATION MARK;Pe;0;ON;;;;;N;;;;;
+301F;LOW DOUBLE PRIME QUOTATION MARK;Pe;0;ON;;;;;N;;;;;
+3020;POSTAL MARK FACE;So;0;ON;;;;;N;;;;;
+3021;HANGZHOU NUMERAL ONE;Nl;0;L;;;;1;N;;;;;
+3022;HANGZHOU NUMERAL TWO;Nl;0;L;;;;2;N;;;;;
+3023;HANGZHOU NUMERAL THREE;Nl;0;L;;;;3;N;;;;;
+3024;HANGZHOU NUMERAL FOUR;Nl;0;L;;;;4;N;;;;;
+3025;HANGZHOU NUMERAL FIVE;Nl;0;L;;;;5;N;;;;;
+3026;HANGZHOU NUMERAL SIX;Nl;0;L;;;;6;N;;;;;
+3027;HANGZHOU NUMERAL SEVEN;Nl;0;L;;;;7;N;;;;;
+3028;HANGZHOU NUMERAL EIGHT;Nl;0;L;;;;8;N;;;;;
+3029;HANGZHOU NUMERAL NINE;Nl;0;L;;;;9;N;;;;;
+302A;IDEOGRAPHIC LEVEL TONE MARK;Mn;218;NSM;;;;;N;;;;;
+302B;IDEOGRAPHIC RISING TONE MARK;Mn;228;NSM;;;;;N;;;;;
+302C;IDEOGRAPHIC DEPARTING TONE MARK;Mn;232;NSM;;;;;N;;;;;
+302D;IDEOGRAPHIC ENTERING TONE MARK;Mn;222;NSM;;;;;N;;;;;
+302E;HANGUL SINGLE DOT TONE MARK;Mc;224;L;;;;;N;;;;;
+302F;HANGUL DOUBLE DOT TONE MARK;Mc;224;L;;;;;N;;;;;
+3030;WAVY DASH;Pd;0;ON;;;;;N;;;;;
+3031;VERTICAL KANA REPEAT MARK;Lm;0;L;;;;;N;;;;;
+3032;VERTICAL KANA REPEAT WITH VOICED SOUND MARK;Lm;0;L;;;;;N;;;;;
+3033;VERTICAL KANA REPEAT MARK UPPER HALF;Lm;0;L;;;;;N;;;;;
+3034;VERTICAL KANA REPEAT WITH VOICED SOUND MARK UPPER HALF;Lm;0;L;;;;;N;;;;;
+3035;VERTICAL KANA REPEAT MARK LOWER HALF;Lm;0;L;;;;;N;;;;;
+3036;CIRCLED POSTAL MARK;So;0;ON;<compat> 3012;;;;N;;;;;
+3037;IDEOGRAPHIC TELEGRAPH LINE FEED SEPARATOR SYMBOL;So;0;ON;;;;;N;;;;;
+3038;HANGZHOU NUMERAL TEN;Nl;0;L;<compat> 5341;;;10;N;;;;;
+3039;HANGZHOU NUMERAL TWENTY;Nl;0;L;<compat> 5344;;;20;N;;;;;
+303A;HANGZHOU NUMERAL THIRTY;Nl;0;L;<compat> 5345;;;30;N;;;;;
+303B;VERTICAL IDEOGRAPHIC ITERATION MARK;Lm;0;L;;;;;N;;;;;
+303C;MASU MARK;Lo;0;L;;;;;N;;;;;
+303D;PART ALTERNATION MARK;Po;0;ON;;;;;N;;;;;
+303E;IDEOGRAPHIC VARIATION INDICATOR;So;0;ON;;;;;N;;;;;
+303F;IDEOGRAPHIC HALF FILL SPACE;So;0;ON;;;;;N;;;;;
+3041;HIRAGANA LETTER SMALL A;Lo;0;L;;;;;N;;;;;
+3042;HIRAGANA LETTER A;Lo;0;L;;;;;N;;;;;
+3043;HIRAGANA LETTER SMALL I;Lo;0;L;;;;;N;;;;;
+3044;HIRAGANA LETTER I;Lo;0;L;;;;;N;;;;;
+3045;HIRAGANA LETTER SMALL U;Lo;0;L;;;;;N;;;;;
+3046;HIRAGANA LETTER U;Lo;0;L;;;;;N;;;;;
+3047;HIRAGANA LETTER SMALL E;Lo;0;L;;;;;N;;;;;
+3048;HIRAGANA LETTER E;Lo;0;L;;;;;N;;;;;
+3049;HIRAGANA LETTER SMALL O;Lo;0;L;;;;;N;;;;;
+304A;HIRAGANA LETTER O;Lo;0;L;;;;;N;;;;;
+304B;HIRAGANA LETTER KA;Lo;0;L;;;;;N;;;;;
+304C;HIRAGANA LETTER GA;Lo;0;L;304B 3099;;;;N;;;;;
+304D;HIRAGANA LETTER KI;Lo;0;L;;;;;N;;;;;
+304E;HIRAGANA LETTER GI;Lo;0;L;304D 3099;;;;N;;;;;
+304F;HIRAGANA LETTER KU;Lo;0;L;;;;;N;;;;;
+3050;HIRAGANA LETTER GU;Lo;0;L;304F 3099;;;;N;;;;;
+3051;HIRAGANA LETTER KE;Lo;0;L;;;;;N;;;;;
+3052;HIRAGANA LETTER GE;Lo;0;L;3051 3099;;;;N;;;;;
+3053;HIRAGANA LETTER KO;Lo;0;L;;;;;N;;;;;
+3054;HIRAGANA LETTER GO;Lo;0;L;3053 3099;;;;N;;;;;
+3055;HIRAGANA LETTER SA;Lo;0;L;;;;;N;;;;;
+3056;HIRAGANA LETTER ZA;Lo;0;L;3055 3099;;;;N;;;;;
+3057;HIRAGANA LETTER SI;Lo;0;L;;;;;N;;;;;
+3058;HIRAGANA LETTER ZI;Lo;0;L;3057 3099;;;;N;;;;;
+3059;HIRAGANA LETTER SU;Lo;0;L;;;;;N;;;;;
+305A;HIRAGANA LETTER ZU;Lo;0;L;3059 3099;;;;N;;;;;
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+305C;HIRAGANA LETTER ZE;Lo;0;L;305B 3099;;;;N;;;;;
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+305E;HIRAGANA LETTER ZO;Lo;0;L;305D 3099;;;;N;;;;;
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+3060;HIRAGANA LETTER DA;Lo;0;L;305F 3099;;;;N;;;;;
+3061;HIRAGANA LETTER TI;Lo;0;L;;;;;N;;;;;
+3062;HIRAGANA LETTER DI;Lo;0;L;3061 3099;;;;N;;;;;
+3063;HIRAGANA LETTER SMALL TU;Lo;0;L;;;;;N;;;;;
+3064;HIRAGANA LETTER TU;Lo;0;L;;;;;N;;;;;
+3065;HIRAGANA LETTER DU;Lo;0;L;3064 3099;;;;N;;;;;
+3066;HIRAGANA LETTER TE;Lo;0;L;;;;;N;;;;;
+3067;HIRAGANA LETTER DE;Lo;0;L;3066 3099;;;;N;;;;;
+3068;HIRAGANA LETTER TO;Lo;0;L;;;;;N;;;;;
+3069;HIRAGANA LETTER DO;Lo;0;L;3068 3099;;;;N;;;;;
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+306B;HIRAGANA LETTER NI;Lo;0;L;;;;;N;;;;;
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+306E;HIRAGANA LETTER NO;Lo;0;L;;;;;N;;;;;
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+3070;HIRAGANA LETTER BA;Lo;0;L;306F 3099;;;;N;;;;;
+3071;HIRAGANA LETTER PA;Lo;0;L;306F 309A;;;;N;;;;;
+3072;HIRAGANA LETTER HI;Lo;0;L;;;;;N;;;;;
+3073;HIRAGANA LETTER BI;Lo;0;L;3072 3099;;;;N;;;;;
+3074;HIRAGANA LETTER PI;Lo;0;L;3072 309A;;;;N;;;;;
+3075;HIRAGANA LETTER HU;Lo;0;L;;;;;N;;;;;
+3076;HIRAGANA LETTER BU;Lo;0;L;3075 3099;;;;N;;;;;
+3077;HIRAGANA LETTER PU;Lo;0;L;3075 309A;;;;N;;;;;
+3078;HIRAGANA LETTER HE;Lo;0;L;;;;;N;;;;;
+3079;HIRAGANA LETTER BE;Lo;0;L;3078 3099;;;;N;;;;;
+307A;HIRAGANA LETTER PE;Lo;0;L;3078 309A;;;;N;;;;;
+307B;HIRAGANA LETTER HO;Lo;0;L;;;;;N;;;;;
+307C;HIRAGANA LETTER BO;Lo;0;L;307B 3099;;;;N;;;;;
+307D;HIRAGANA LETTER PO;Lo;0;L;307B 309A;;;;N;;;;;
+307E;HIRAGANA LETTER MA;Lo;0;L;;;;;N;;;;;
+307F;HIRAGANA LETTER MI;Lo;0;L;;;;;N;;;;;
+3080;HIRAGANA LETTER MU;Lo;0;L;;;;;N;;;;;
+3081;HIRAGANA LETTER ME;Lo;0;L;;;;;N;;;;;
+3082;HIRAGANA LETTER MO;Lo;0;L;;;;;N;;;;;
+3083;HIRAGANA LETTER SMALL YA;Lo;0;L;;;;;N;;;;;
+3084;HIRAGANA LETTER YA;Lo;0;L;;;;;N;;;;;
+3085;HIRAGANA LETTER SMALL YU;Lo;0;L;;;;;N;;;;;
+3086;HIRAGANA LETTER YU;Lo;0;L;;;;;N;;;;;
+3087;HIRAGANA LETTER SMALL YO;Lo;0;L;;;;;N;;;;;
+3088;HIRAGANA LETTER YO;Lo;0;L;;;;;N;;;;;
+3089;HIRAGANA LETTER RA;Lo;0;L;;;;;N;;;;;
+308A;HIRAGANA LETTER RI;Lo;0;L;;;;;N;;;;;
+308B;HIRAGANA LETTER RU;Lo;0;L;;;;;N;;;;;
+308C;HIRAGANA LETTER RE;Lo;0;L;;;;;N;;;;;
+308D;HIRAGANA LETTER RO;Lo;0;L;;;;;N;;;;;
+308E;HIRAGANA LETTER SMALL WA;Lo;0;L;;;;;N;;;;;
+308F;HIRAGANA LETTER WA;Lo;0;L;;;;;N;;;;;
+3090;HIRAGANA LETTER WI;Lo;0;L;;;;;N;;;;;
+3091;HIRAGANA LETTER WE;Lo;0;L;;;;;N;;;;;
+3092;HIRAGANA LETTER WO;Lo;0;L;;;;;N;;;;;
+3093;HIRAGANA LETTER N;Lo;0;L;;;;;N;;;;;
+3094;HIRAGANA LETTER VU;Lo;0;L;3046 3099;;;;N;;;;;
+3095;HIRAGANA LETTER SMALL KA;Lo;0;L;;;;;N;;;;;
+3096;HIRAGANA LETTER SMALL KE;Lo;0;L;;;;;N;;;;;
+3099;COMBINING KATAKANA-HIRAGANA VOICED SOUND MARK;Mn;8;NSM;;;;;N;NON-SPACING KATAKANA-HIRAGANA VOICED SOUND MARK;;;;
+309A;COMBINING KATAKANA-HIRAGANA SEMI-VOICED SOUND MARK;Mn;8;NSM;;;;;N;NON-SPACING KATAKANA-HIRAGANA SEMI-VOICED SOUND MARK;;;;
+309B;KATAKANA-HIRAGANA VOICED SOUND MARK;Sk;0;ON;<compat> 0020 3099;;;;N;;;;;
+309C;KATAKANA-HIRAGANA SEMI-VOICED SOUND MARK;Sk;0;ON;<compat> 0020 309A;;;;N;;;;;
+309D;HIRAGANA ITERATION MARK;Lm;0;L;;;;;N;;;;;
+309E;HIRAGANA VOICED ITERATION MARK;Lm;0;L;309D 3099;;;;N;;;;;
+309F;HIRAGANA DIGRAPH YORI;Lo;0;L;<vertical> 3088 308A;;;;N;;;;;
+30A0;KATAKANA-HIRAGANA DOUBLE HYPHEN;Pd;0;ON;;;;;N;;;;;
+30A1;KATAKANA LETTER SMALL A;Lo;0;L;;;;;N;;;;;
+30A2;KATAKANA LETTER A;Lo;0;L;;;;;N;;;;;
+30A3;KATAKANA LETTER SMALL I;Lo;0;L;;;;;N;;;;;
+30A4;KATAKANA LETTER I;Lo;0;L;;;;;N;;;;;
+30A5;KATAKANA LETTER SMALL U;Lo;0;L;;;;;N;;;;;
+30A6;KATAKANA LETTER U;Lo;0;L;;;;;N;;;;;
+30A7;KATAKANA LETTER SMALL E;Lo;0;L;;;;;N;;;;;
+30A8;KATAKANA LETTER E;Lo;0;L;;;;;N;;;;;
+30A9;KATAKANA LETTER SMALL O;Lo;0;L;;;;;N;;;;;
+30AA;KATAKANA LETTER O;Lo;0;L;;;;;N;;;;;
+30AB;KATAKANA LETTER KA;Lo;0;L;;;;;N;;;;;
+30AC;KATAKANA LETTER GA;Lo;0;L;30AB 3099;;;;N;;;;;
+30AD;KATAKANA LETTER KI;Lo;0;L;;;;;N;;;;;
+30AE;KATAKANA LETTER GI;Lo;0;L;30AD 3099;;;;N;;;;;
+30AF;KATAKANA LETTER KU;Lo;0;L;;;;;N;;;;;
+30B0;KATAKANA LETTER GU;Lo;0;L;30AF 3099;;;;N;;;;;
+30B1;KATAKANA LETTER KE;Lo;0;L;;;;;N;;;;;
+30B2;KATAKANA LETTER GE;Lo;0;L;30B1 3099;;;;N;;;;;
+30B3;KATAKANA LETTER KO;Lo;0;L;;;;;N;;;;;
+30B4;KATAKANA LETTER GO;Lo;0;L;30B3 3099;;;;N;;;;;
+30B5;KATAKANA LETTER SA;Lo;0;L;;;;;N;;;;;
+30B6;KATAKANA LETTER ZA;Lo;0;L;30B5 3099;;;;N;;;;;
+30B7;KATAKANA LETTER SI;Lo;0;L;;;;;N;;;;;
+30B8;KATAKANA LETTER ZI;Lo;0;L;30B7 3099;;;;N;;;;;
+30B9;KATAKANA LETTER SU;Lo;0;L;;;;;N;;;;;
+30BA;KATAKANA LETTER ZU;Lo;0;L;30B9 3099;;;;N;;;;;
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+30BC;KATAKANA LETTER ZE;Lo;0;L;30BB 3099;;;;N;;;;;
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+30BE;KATAKANA LETTER ZO;Lo;0;L;30BD 3099;;;;N;;;;;
+30BF;KATAKANA LETTER TA;Lo;0;L;;;;;N;;;;;
+30C0;KATAKANA LETTER DA;Lo;0;L;30BF 3099;;;;N;;;;;
+30C1;KATAKANA LETTER TI;Lo;0;L;;;;;N;;;;;
+30C2;KATAKANA LETTER DI;Lo;0;L;30C1 3099;;;;N;;;;;
+30C3;KATAKANA LETTER SMALL TU;Lo;0;L;;;;;N;;;;;
+30C4;KATAKANA LETTER TU;Lo;0;L;;;;;N;;;;;
+30C5;KATAKANA LETTER DU;Lo;0;L;30C4 3099;;;;N;;;;;
+30C6;KATAKANA LETTER TE;Lo;0;L;;;;;N;;;;;
+30C7;KATAKANA LETTER DE;Lo;0;L;30C6 3099;;;;N;;;;;
+30C8;KATAKANA LETTER TO;Lo;0;L;;;;;N;;;;;
+30C9;KATAKANA LETTER DO;Lo;0;L;30C8 3099;;;;N;;;;;
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+30CB;KATAKANA LETTER NI;Lo;0;L;;;;;N;;;;;
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+30CD;KATAKANA LETTER NE;Lo;0;L;;;;;N;;;;;
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+30D0;KATAKANA LETTER BA;Lo;0;L;30CF 3099;;;;N;;;;;
+30D1;KATAKANA LETTER PA;Lo;0;L;30CF 309A;;;;N;;;;;
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+30D6;KATAKANA LETTER BU;Lo;0;L;30D5 3099;;;;N;;;;;
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+30D9;KATAKANA LETTER BE;Lo;0;L;30D8 3099;;;;N;;;;;
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+30DD;KATAKANA LETTER PO;Lo;0;L;30DB 309A;;;;N;;;;;
+30DE;KATAKANA LETTER MA;Lo;0;L;;;;;N;;;;;
+30DF;KATAKANA LETTER MI;Lo;0;L;;;;;N;;;;;
+30E0;KATAKANA LETTER MU;Lo;0;L;;;;;N;;;;;
+30E1;KATAKANA LETTER ME;Lo;0;L;;;;;N;;;;;
+30E2;KATAKANA LETTER MO;Lo;0;L;;;;;N;;;;;
+30E3;KATAKANA LETTER SMALL YA;Lo;0;L;;;;;N;;;;;
+30E4;KATAKANA LETTER YA;Lo;0;L;;;;;N;;;;;
+30E5;KATAKANA LETTER SMALL YU;Lo;0;L;;;;;N;;;;;
+30E6;KATAKANA LETTER YU;Lo;0;L;;;;;N;;;;;
+30E7;KATAKANA LETTER SMALL YO;Lo;0;L;;;;;N;;;;;
+30E8;KATAKANA LETTER YO;Lo;0;L;;;;;N;;;;;
+30E9;KATAKANA LETTER RA;Lo;0;L;;;;;N;;;;;
+30EA;KATAKANA LETTER RI;Lo;0;L;;;;;N;;;;;
+30EB;KATAKANA LETTER RU;Lo;0;L;;;;;N;;;;;
+30EC;KATAKANA LETTER RE;Lo;0;L;;;;;N;;;;;
+30ED;KATAKANA LETTER RO;Lo;0;L;;;;;N;;;;;
+30EE;KATAKANA LETTER SMALL WA;Lo;0;L;;;;;N;;;;;
+30EF;KATAKANA LETTER WA;Lo;0;L;;;;;N;;;;;
+30F0;KATAKANA LETTER WI;Lo;0;L;;;;;N;;;;;
+30F1;KATAKANA LETTER WE;Lo;0;L;;;;;N;;;;;
+30F2;KATAKANA LETTER WO;Lo;0;L;;;;;N;;;;;
+30F3;KATAKANA LETTER N;Lo;0;L;;;;;N;;;;;
+30F4;KATAKANA LETTER VU;Lo;0;L;30A6 3099;;;;N;;;;;
+30F5;KATAKANA LETTER SMALL KA;Lo;0;L;;;;;N;;;;;
+30F6;KATAKANA LETTER SMALL KE;Lo;0;L;;;;;N;;;;;
+30F7;KATAKANA LETTER VA;Lo;0;L;30EF 3099;;;;N;;;;;
+30F8;KATAKANA LETTER VI;Lo;0;L;30F0 3099;;;;N;;;;;
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+30FA;KATAKANA LETTER VO;Lo;0;L;30F2 3099;;;;N;;;;;
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+30FC;KATAKANA-HIRAGANA PROLONGED SOUND MARK;Lm;0;L;;;;;N;;;;;
+30FD;KATAKANA ITERATION MARK;Lm;0;L;;;;;N;;;;;
+30FE;KATAKANA VOICED ITERATION MARK;Lm;0;L;30FD 3099;;;;N;;;;;
+30FF;KATAKANA DIGRAPH KOTO;Lo;0;L;<vertical> 30B3 30C8;;;;N;;;;;
+3105;BOPOMOFO LETTER B;Lo;0;L;;;;;N;;;;;
+3106;BOPOMOFO LETTER P;Lo;0;L;;;;;N;;;;;
+3107;BOPOMOFO LETTER M;Lo;0;L;;;;;N;;;;;
+3108;BOPOMOFO LETTER F;Lo;0;L;;;;;N;;;;;
+3109;BOPOMOFO LETTER D;Lo;0;L;;;;;N;;;;;
+310A;BOPOMOFO LETTER T;Lo;0;L;;;;;N;;;;;
+310B;BOPOMOFO LETTER N;Lo;0;L;;;;;N;;;;;
+310C;BOPOMOFO LETTER L;Lo;0;L;;;;;N;;;;;
+310D;BOPOMOFO LETTER G;Lo;0;L;;;;;N;;;;;
+310E;BOPOMOFO LETTER K;Lo;0;L;;;;;N;;;;;
+310F;BOPOMOFO LETTER H;Lo;0;L;;;;;N;;;;;
+3110;BOPOMOFO LETTER J;Lo;0;L;;;;;N;;;;;
+3111;BOPOMOFO LETTER Q;Lo;0;L;;;;;N;;;;;
+3112;BOPOMOFO LETTER X;Lo;0;L;;;;;N;;;;;
+3113;BOPOMOFO LETTER ZH;Lo;0;L;;;;;N;;;;;
+3114;BOPOMOFO LETTER CH;Lo;0;L;;;;;N;;;;;
+3115;BOPOMOFO LETTER SH;Lo;0;L;;;;;N;;;;;
+3116;BOPOMOFO LETTER R;Lo;0;L;;;;;N;;;;;
+3117;BOPOMOFO LETTER Z;Lo;0;L;;;;;N;;;;;
+3118;BOPOMOFO LETTER C;Lo;0;L;;;;;N;;;;;
+3119;BOPOMOFO LETTER S;Lo;0;L;;;;;N;;;;;
+311A;BOPOMOFO LETTER A;Lo;0;L;;;;;N;;;;;
+311B;BOPOMOFO LETTER O;Lo;0;L;;;;;N;;;;;
+311C;BOPOMOFO LETTER E;Lo;0;L;;;;;N;;;;;
+311D;BOPOMOFO LETTER EH;Lo;0;L;;;;;N;;;;;
+311E;BOPOMOFO LETTER AI;Lo;0;L;;;;;N;;;;;
+311F;BOPOMOFO LETTER EI;Lo;0;L;;;;;N;;;;;
+3120;BOPOMOFO LETTER AU;Lo;0;L;;;;;N;;;;;
+3121;BOPOMOFO LETTER OU;Lo;0;L;;;;;N;;;;;
+3122;BOPOMOFO LETTER AN;Lo;0;L;;;;;N;;;;;
+3123;BOPOMOFO LETTER EN;Lo;0;L;;;;;N;;;;;
+3124;BOPOMOFO LETTER ANG;Lo;0;L;;;;;N;;;;;
+3125;BOPOMOFO LETTER ENG;Lo;0;L;;;;;N;;;;;
+3126;BOPOMOFO LETTER ER;Lo;0;L;;;;;N;;;;;
+3127;BOPOMOFO LETTER I;Lo;0;L;;;;;N;;;;;
+3128;BOPOMOFO LETTER U;Lo;0;L;;;;;N;;;;;
+3129;BOPOMOFO LETTER IU;Lo;0;L;;;;;N;;;;;
+312A;BOPOMOFO LETTER V;Lo;0;L;;;;;N;;;;;
+312B;BOPOMOFO LETTER NG;Lo;0;L;;;;;N;;;;;
+312C;BOPOMOFO LETTER GN;Lo;0;L;;;;;N;;;;;
+312D;BOPOMOFO LETTER IH;Lo;0;L;;;;;N;;;;;
+3131;HANGUL LETTER KIYEOK;Lo;0;L;<compat> 1100;;;;N;HANGUL LETTER GIYEOG;;;;
+3132;HANGUL LETTER SSANGKIYEOK;Lo;0;L;<compat> 1101;;;;N;HANGUL LETTER SSANG GIYEOG;;;;
+3133;HANGUL LETTER KIYEOK-SIOS;Lo;0;L;<compat> 11AA;;;;N;HANGUL LETTER GIYEOG SIOS;;;;
+3134;HANGUL LETTER NIEUN;Lo;0;L;<compat> 1102;;;;N;;;;;
+3135;HANGUL LETTER NIEUN-CIEUC;Lo;0;L;<compat> 11AC;;;;N;HANGUL LETTER NIEUN JIEUJ;;;;
+3136;HANGUL LETTER NIEUN-HIEUH;Lo;0;L;<compat> 11AD;;;;N;HANGUL LETTER NIEUN HIEUH;;;;
+3137;HANGUL LETTER TIKEUT;Lo;0;L;<compat> 1103;;;;N;HANGUL LETTER DIGEUD;;;;
+3138;HANGUL LETTER SSANGTIKEUT;Lo;0;L;<compat> 1104;;;;N;HANGUL LETTER SSANG DIGEUD;;;;
+3139;HANGUL LETTER RIEUL;Lo;0;L;<compat> 1105;;;;N;HANGUL LETTER LIEUL;;;;
+313A;HANGUL LETTER RIEUL-KIYEOK;Lo;0;L;<compat> 11B0;;;;N;HANGUL LETTER LIEUL GIYEOG;;;;
+313B;HANGUL LETTER RIEUL-MIEUM;Lo;0;L;<compat> 11B1;;;;N;HANGUL LETTER LIEUL MIEUM;;;;
+313C;HANGUL LETTER RIEUL-PIEUP;Lo;0;L;<compat> 11B2;;;;N;HANGUL LETTER LIEUL BIEUB;;;;
+313D;HANGUL LETTER RIEUL-SIOS;Lo;0;L;<compat> 11B3;;;;N;HANGUL LETTER LIEUL SIOS;;;;
+313E;HANGUL LETTER RIEUL-THIEUTH;Lo;0;L;<compat> 11B4;;;;N;HANGUL LETTER LIEUL TIEUT;;;;
+313F;HANGUL LETTER RIEUL-PHIEUPH;Lo;0;L;<compat> 11B5;;;;N;HANGUL LETTER LIEUL PIEUP;;;;
+3140;HANGUL LETTER RIEUL-HIEUH;Lo;0;L;<compat> 111A;;;;N;HANGUL LETTER LIEUL HIEUH;;;;
+3141;HANGUL LETTER MIEUM;Lo;0;L;<compat> 1106;;;;N;;;;;
+3142;HANGUL LETTER PIEUP;Lo;0;L;<compat> 1107;;;;N;HANGUL LETTER BIEUB;;;;
+3143;HANGUL LETTER SSANGPIEUP;Lo;0;L;<compat> 1108;;;;N;HANGUL LETTER SSANG BIEUB;;;;
+3144;HANGUL LETTER PIEUP-SIOS;Lo;0;L;<compat> 1121;;;;N;HANGUL LETTER BIEUB SIOS;;;;
+3145;HANGUL LETTER SIOS;Lo;0;L;<compat> 1109;;;;N;;;;;
+3146;HANGUL LETTER SSANGSIOS;Lo;0;L;<compat> 110A;;;;N;HANGUL LETTER SSANG SIOS;;;;
+3147;HANGUL LETTER IEUNG;Lo;0;L;<compat> 110B;;;;N;;;;;
+3148;HANGUL LETTER CIEUC;Lo;0;L;<compat> 110C;;;;N;HANGUL LETTER JIEUJ;;;;
+3149;HANGUL LETTER SSANGCIEUC;Lo;0;L;<compat> 110D;;;;N;HANGUL LETTER SSANG JIEUJ;;;;
+314A;HANGUL LETTER CHIEUCH;Lo;0;L;<compat> 110E;;;;N;HANGUL LETTER CIEUC;;;;
+314B;HANGUL LETTER KHIEUKH;Lo;0;L;<compat> 110F;;;;N;HANGUL LETTER KIYEOK;;;;
+314C;HANGUL LETTER THIEUTH;Lo;0;L;<compat> 1110;;;;N;HANGUL LETTER TIEUT;;;;
+314D;HANGUL LETTER PHIEUPH;Lo;0;L;<compat> 1111;;;;N;HANGUL LETTER PIEUP;;;;
+314E;HANGUL LETTER HIEUH;Lo;0;L;<compat> 1112;;;;N;;;;;
+314F;HANGUL LETTER A;Lo;0;L;<compat> 1161;;;;N;;;;;
+3150;HANGUL LETTER AE;Lo;0;L;<compat> 1162;;;;N;;;;;
+3151;HANGUL LETTER YA;Lo;0;L;<compat> 1163;;;;N;;;;;
+3152;HANGUL LETTER YAE;Lo;0;L;<compat> 1164;;;;N;;;;;
+3153;HANGUL LETTER EO;Lo;0;L;<compat> 1165;;;;N;;;;;
+3154;HANGUL LETTER E;Lo;0;L;<compat> 1166;;;;N;;;;;
+3155;HANGUL LETTER YEO;Lo;0;L;<compat> 1167;;;;N;;;;;
+3156;HANGUL LETTER YE;Lo;0;L;<compat> 1168;;;;N;;;;;
+3157;HANGUL LETTER O;Lo;0;L;<compat> 1169;;;;N;;;;;
+3158;HANGUL LETTER WA;Lo;0;L;<compat> 116A;;;;N;;;;;
+3159;HANGUL LETTER WAE;Lo;0;L;<compat> 116B;;;;N;;;;;
+315A;HANGUL LETTER OE;Lo;0;L;<compat> 116C;;;;N;;;;;
+315B;HANGUL LETTER YO;Lo;0;L;<compat> 116D;;;;N;;;;;
+315C;HANGUL LETTER U;Lo;0;L;<compat> 116E;;;;N;;;;;
+315D;HANGUL LETTER WEO;Lo;0;L;<compat> 116F;;;;N;;;;;
+315E;HANGUL LETTER WE;Lo;0;L;<compat> 1170;;;;N;;;;;
+315F;HANGUL LETTER WI;Lo;0;L;<compat> 1171;;;;N;;;;;
+3160;HANGUL LETTER YU;Lo;0;L;<compat> 1172;;;;N;;;;;
+3161;HANGUL LETTER EU;Lo;0;L;<compat> 1173;;;;N;;;;;
+3162;HANGUL LETTER YI;Lo;0;L;<compat> 1174;;;;N;;;;;
+3163;HANGUL LETTER I;Lo;0;L;<compat> 1175;;;;N;;;;;
+3164;HANGUL FILLER;Lo;0;L;<compat> 1160;;;;N;HANGUL CAE OM;;;;
+3165;HANGUL LETTER SSANGNIEUN;Lo;0;L;<compat> 1114;;;;N;HANGUL LETTER SSANG NIEUN;;;;
+3166;HANGUL LETTER NIEUN-TIKEUT;Lo;0;L;<compat> 1115;;;;N;HANGUL LETTER NIEUN DIGEUD;;;;
+3167;HANGUL LETTER NIEUN-SIOS;Lo;0;L;<compat> 11C7;;;;N;HANGUL LETTER NIEUN SIOS;;;;
+3168;HANGUL LETTER NIEUN-PANSIOS;Lo;0;L;<compat> 11C8;;;;N;HANGUL LETTER NIEUN BAN CHI EUM;;;;
+3169;HANGUL LETTER RIEUL-KIYEOK-SIOS;Lo;0;L;<compat> 11CC;;;;N;HANGUL LETTER LIEUL GIYEOG SIOS;;;;
+316A;HANGUL LETTER RIEUL-TIKEUT;Lo;0;L;<compat> 11CE;;;;N;HANGUL LETTER LIEUL DIGEUD;;;;
+316B;HANGUL LETTER RIEUL-PIEUP-SIOS;Lo;0;L;<compat> 11D3;;;;N;HANGUL LETTER LIEUL BIEUB SIOS;;;;
+316C;HANGUL LETTER RIEUL-PANSIOS;Lo;0;L;<compat> 11D7;;;;N;HANGUL LETTER LIEUL BAN CHI EUM;;;;
+316D;HANGUL LETTER RIEUL-YEORINHIEUH;Lo;0;L;<compat> 11D9;;;;N;HANGUL LETTER LIEUL YEOLIN HIEUH;;;;
+316E;HANGUL LETTER MIEUM-PIEUP;Lo;0;L;<compat> 111C;;;;N;HANGUL LETTER MIEUM BIEUB;;;;
+316F;HANGUL LETTER MIEUM-SIOS;Lo;0;L;<compat> 11DD;;;;N;HANGUL LETTER MIEUM SIOS;;;;
+3170;HANGUL LETTER MIEUM-PANSIOS;Lo;0;L;<compat> 11DF;;;;N;HANGUL LETTER BIEUB BAN CHI EUM;;;;
+3171;HANGUL LETTER KAPYEOUNMIEUM;Lo;0;L;<compat> 111D;;;;N;HANGUL LETTER MIEUM SUN GYEONG EUM;;;;
+3172;HANGUL LETTER PIEUP-KIYEOK;Lo;0;L;<compat> 111E;;;;N;HANGUL LETTER BIEUB GIYEOG;;;;
+3173;HANGUL LETTER PIEUP-TIKEUT;Lo;0;L;<compat> 1120;;;;N;HANGUL LETTER BIEUB DIGEUD;;;;
+3174;HANGUL LETTER PIEUP-SIOS-KIYEOK;Lo;0;L;<compat> 1122;;;;N;HANGUL LETTER BIEUB SIOS GIYEOG;;;;
+3175;HANGUL LETTER PIEUP-SIOS-TIKEUT;Lo;0;L;<compat> 1123;;;;N;HANGUL LETTER BIEUB SIOS DIGEUD;;;;
+3176;HANGUL LETTER PIEUP-CIEUC;Lo;0;L;<compat> 1127;;;;N;HANGUL LETTER BIEUB JIEUJ;;;;
+3177;HANGUL LETTER PIEUP-THIEUTH;Lo;0;L;<compat> 1129;;;;N;HANGUL LETTER BIEUB TIEUT;;;;
+3178;HANGUL LETTER KAPYEOUNPIEUP;Lo;0;L;<compat> 112B;;;;N;HANGUL LETTER BIEUB SUN GYEONG EUM;;;;
+3179;HANGUL LETTER KAPYEOUNSSANGPIEUP;Lo;0;L;<compat> 112C;;;;N;HANGUL LETTER SSANG BIEUB SUN GYEONG EUM;;;;
+317A;HANGUL LETTER SIOS-KIYEOK;Lo;0;L;<compat> 112D;;;;N;HANGUL LETTER SIOS GIYEOG;;;;
+317B;HANGUL LETTER SIOS-NIEUN;Lo;0;L;<compat> 112E;;;;N;HANGUL LETTER SIOS NIEUN;;;;
+317C;HANGUL LETTER SIOS-TIKEUT;Lo;0;L;<compat> 112F;;;;N;HANGUL LETTER SIOS DIGEUD;;;;
+317D;HANGUL LETTER SIOS-PIEUP;Lo;0;L;<compat> 1132;;;;N;HANGUL LETTER SIOS BIEUB;;;;
+317E;HANGUL LETTER SIOS-CIEUC;Lo;0;L;<compat> 1136;;;;N;HANGUL LETTER SIOS JIEUJ;;;;
+317F;HANGUL LETTER PANSIOS;Lo;0;L;<compat> 1140;;;;N;HANGUL LETTER BAN CHI EUM;;;;
+3180;HANGUL LETTER SSANGIEUNG;Lo;0;L;<compat> 1147;;;;N;HANGUL LETTER SSANG IEUNG;;;;
+3181;HANGUL LETTER YESIEUNG;Lo;0;L;<compat> 114C;;;;N;HANGUL LETTER NGIEUNG;;;;
+3182;HANGUL LETTER YESIEUNG-SIOS;Lo;0;L;<compat> 11F1;;;;N;HANGUL LETTER NGIEUNG SIOS;;;;
+3183;HANGUL LETTER YESIEUNG-PANSIOS;Lo;0;L;<compat> 11F2;;;;N;HANGUL LETTER NGIEUNG BAN CHI EUM;;;;
+3184;HANGUL LETTER KAPYEOUNPHIEUPH;Lo;0;L;<compat> 1157;;;;N;HANGUL LETTER PIEUP SUN GYEONG EUM;;;;
+3185;HANGUL LETTER SSANGHIEUH;Lo;0;L;<compat> 1158;;;;N;HANGUL LETTER SSANG HIEUH;;;;
+3186;HANGUL LETTER YEORINHIEUH;Lo;0;L;<compat> 1159;;;;N;HANGUL LETTER YEOLIN HIEUH;;;;
+3187;HANGUL LETTER YO-YA;Lo;0;L;<compat> 1184;;;;N;HANGUL LETTER YOYA;;;;
+3188;HANGUL LETTER YO-YAE;Lo;0;L;<compat> 1185;;;;N;HANGUL LETTER YOYAE;;;;
+3189;HANGUL LETTER YO-I;Lo;0;L;<compat> 1188;;;;N;HANGUL LETTER YOI;;;;
+318A;HANGUL LETTER YU-YEO;Lo;0;L;<compat> 1191;;;;N;HANGUL LETTER YUYEO;;;;
+318B;HANGUL LETTER YU-YE;Lo;0;L;<compat> 1192;;;;N;HANGUL LETTER YUYE;;;;
+318C;HANGUL LETTER YU-I;Lo;0;L;<compat> 1194;;;;N;HANGUL LETTER YUI;;;;
+318D;HANGUL LETTER ARAEA;Lo;0;L;<compat> 119E;;;;N;HANGUL LETTER ALAE A;;;;
+318E;HANGUL LETTER ARAEAE;Lo;0;L;<compat> 11A1;;;;N;HANGUL LETTER ALAE AE;;;;
+3190;IDEOGRAPHIC ANNOTATION LINKING MARK;So;0;L;;;;;N;KANBUN TATETEN;;;;
+3191;IDEOGRAPHIC ANNOTATION REVERSE MARK;So;0;L;;;;;N;KAERITEN RE;;;;
+3192;IDEOGRAPHIC ANNOTATION ONE MARK;No;0;L;<super> 4E00;;;1;N;KAERITEN ITI;;;;
+3193;IDEOGRAPHIC ANNOTATION TWO MARK;No;0;L;<super> 4E8C;;;2;N;KAERITEN NI;;;;
+3194;IDEOGRAPHIC ANNOTATION THREE MARK;No;0;L;<super> 4E09;;;3;N;KAERITEN SAN;;;;
+3195;IDEOGRAPHIC ANNOTATION FOUR MARK;No;0;L;<super> 56DB;;;4;N;KAERITEN SI;;;;
+3196;IDEOGRAPHIC ANNOTATION TOP MARK;So;0;L;<super> 4E0A;;;;N;KAERITEN ZYOU;;;;
+3197;IDEOGRAPHIC ANNOTATION MIDDLE MARK;So;0;L;<super> 4E2D;;;;N;KAERITEN TYUU;;;;
+3198;IDEOGRAPHIC ANNOTATION BOTTOM MARK;So;0;L;<super> 4E0B;;;;N;KAERITEN GE;;;;
+3199;IDEOGRAPHIC ANNOTATION FIRST MARK;So;0;L;<super> 7532;;;;N;KAERITEN KOU;;;;
+319A;IDEOGRAPHIC ANNOTATION SECOND MARK;So;0;L;<super> 4E59;;;;N;KAERITEN OTU;;;;
+319B;IDEOGRAPHIC ANNOTATION THIRD MARK;So;0;L;<super> 4E19;;;;N;KAERITEN HEI;;;;
+319C;IDEOGRAPHIC ANNOTATION FOURTH MARK;So;0;L;<super> 4E01;;;;N;KAERITEN TEI;;;;
+319D;IDEOGRAPHIC ANNOTATION HEAVEN MARK;So;0;L;<super> 5929;;;;N;KAERITEN TEN;;;;
+319E;IDEOGRAPHIC ANNOTATION EARTH MARK;So;0;L;<super> 5730;;;;N;KAERITEN TI;;;;
+319F;IDEOGRAPHIC ANNOTATION MAN MARK;So;0;L;<super> 4EBA;;;;N;KAERITEN ZIN;;;;
+31A0;BOPOMOFO LETTER BU;Lo;0;L;;;;;N;;;;;
+31A1;BOPOMOFO LETTER ZI;Lo;0;L;;;;;N;;;;;
+31A2;BOPOMOFO LETTER JI;Lo;0;L;;;;;N;;;;;
+31A3;BOPOMOFO LETTER GU;Lo;0;L;;;;;N;;;;;
+31A4;BOPOMOFO LETTER EE;Lo;0;L;;;;;N;;;;;
+31A5;BOPOMOFO LETTER ENN;Lo;0;L;;;;;N;;;;;
+31A6;BOPOMOFO LETTER OO;Lo;0;L;;;;;N;;;;;
+31A7;BOPOMOFO LETTER ONN;Lo;0;L;;;;;N;;;;;
+31A8;BOPOMOFO LETTER IR;Lo;0;L;;;;;N;;;;;
+31A9;BOPOMOFO LETTER ANN;Lo;0;L;;;;;N;;;;;
+31AA;BOPOMOFO LETTER INN;Lo;0;L;;;;;N;;;;;
+31AB;BOPOMOFO LETTER UNN;Lo;0;L;;;;;N;;;;;
+31AC;BOPOMOFO LETTER IM;Lo;0;L;;;;;N;;;;;
+31AD;BOPOMOFO LETTER NGG;Lo;0;L;;;;;N;;;;;
+31AE;BOPOMOFO LETTER AINN;Lo;0;L;;;;;N;;;;;
+31AF;BOPOMOFO LETTER AUNN;Lo;0;L;;;;;N;;;;;
+31B0;BOPOMOFO LETTER AM;Lo;0;L;;;;;N;;;;;
+31B1;BOPOMOFO LETTER OM;Lo;0;L;;;;;N;;;;;
+31B2;BOPOMOFO LETTER ONG;Lo;0;L;;;;;N;;;;;
+31B3;BOPOMOFO LETTER INNN;Lo;0;L;;;;;N;;;;;
+31B4;BOPOMOFO FINAL LETTER P;Lo;0;L;;;;;N;;;;;
+31B5;BOPOMOFO FINAL LETTER T;Lo;0;L;;;;;N;;;;;
+31B6;BOPOMOFO FINAL LETTER K;Lo;0;L;;;;;N;;;;;
+31B7;BOPOMOFO FINAL LETTER H;Lo;0;L;;;;;N;;;;;
+31B8;BOPOMOFO LETTER GH;Lo;0;L;;;;;N;;;;;
+31B9;BOPOMOFO LETTER LH;Lo;0;L;;;;;N;;;;;
+31BA;BOPOMOFO LETTER ZY;Lo;0;L;;;;;N;;;;;
+31C0;CJK STROKE T;So;0;ON;;;;;N;;;;;
+31C1;CJK STROKE WG;So;0;ON;;;;;N;;;;;
+31C2;CJK STROKE XG;So;0;ON;;;;;N;;;;;
+31C3;CJK STROKE BXG;So;0;ON;;;;;N;;;;;
+31C4;CJK STROKE SW;So;0;ON;;;;;N;;;;;
+31C5;CJK STROKE HZZ;So;0;ON;;;;;N;;;;;
+31C6;CJK STROKE HZG;So;0;ON;;;;;N;;;;;
+31C7;CJK STROKE HP;So;0;ON;;;;;N;;;;;
+31C8;CJK STROKE HZWG;So;0;ON;;;;;N;;;;;
+31C9;CJK STROKE SZWG;So;0;ON;;;;;N;;;;;
+31CA;CJK STROKE HZT;So;0;ON;;;;;N;;;;;
+31CB;CJK STROKE HZZP;So;0;ON;;;;;N;;;;;
+31CC;CJK STROKE HPWG;So;0;ON;;;;;N;;;;;
+31CD;CJK STROKE HZW;So;0;ON;;;;;N;;;;;
+31CE;CJK STROKE HZZZ;So;0;ON;;;;;N;;;;;
+31CF;CJK STROKE N;So;0;ON;;;;;N;;;;;
+31D0;CJK STROKE H;So;0;ON;;;;;N;;;;;
+31D1;CJK STROKE S;So;0;ON;;;;;N;;;;;
+31D2;CJK STROKE P;So;0;ON;;;;;N;;;;;
+31D3;CJK STROKE SP;So;0;ON;;;;;N;;;;;
+31D4;CJK STROKE D;So;0;ON;;;;;N;;;;;
+31D5;CJK STROKE HZ;So;0;ON;;;;;N;;;;;
+31D6;CJK STROKE HG;So;0;ON;;;;;N;;;;;
+31D7;CJK STROKE SZ;So;0;ON;;;;;N;;;;;
+31D8;CJK STROKE SWZ;So;0;ON;;;;;N;;;;;
+31D9;CJK STROKE ST;So;0;ON;;;;;N;;;;;
+31DA;CJK STROKE SG;So;0;ON;;;;;N;;;;;
+31DB;CJK STROKE PD;So;0;ON;;;;;N;;;;;
+31DC;CJK STROKE PZ;So;0;ON;;;;;N;;;;;
+31DD;CJK STROKE TN;So;0;ON;;;;;N;;;;;
+31DE;CJK STROKE SZZ;So;0;ON;;;;;N;;;;;
+31DF;CJK STROKE SWG;So;0;ON;;;;;N;;;;;
+31E0;CJK STROKE HXWG;So;0;ON;;;;;N;;;;;
+31E1;CJK STROKE HZZZG;So;0;ON;;;;;N;;;;;
+31E2;CJK STROKE PG;So;0;ON;;;;;N;;;;;
+31E3;CJK STROKE Q;So;0;ON;;;;;N;;;;;
+31F0;KATAKANA LETTER SMALL KU;Lo;0;L;;;;;N;;;;;
+31F1;KATAKANA LETTER SMALL SI;Lo;0;L;;;;;N;;;;;
+31F2;KATAKANA LETTER SMALL SU;Lo;0;L;;;;;N;;;;;
+31F3;KATAKANA LETTER SMALL TO;Lo;0;L;;;;;N;;;;;
+31F4;KATAKANA LETTER SMALL NU;Lo;0;L;;;;;N;;;;;
+31F5;KATAKANA LETTER SMALL HA;Lo;0;L;;;;;N;;;;;
+31F6;KATAKANA LETTER SMALL HI;Lo;0;L;;;;;N;;;;;
+31F7;KATAKANA LETTER SMALL HU;Lo;0;L;;;;;N;;;;;
+31F8;KATAKANA LETTER SMALL HE;Lo;0;L;;;;;N;;;;;
+31F9;KATAKANA LETTER SMALL HO;Lo;0;L;;;;;N;;;;;
+31FA;KATAKANA LETTER SMALL MU;Lo;0;L;;;;;N;;;;;
+31FB;KATAKANA LETTER SMALL RA;Lo;0;L;;;;;N;;;;;
+31FC;KATAKANA LETTER SMALL RI;Lo;0;L;;;;;N;;;;;
+31FD;KATAKANA LETTER SMALL RU;Lo;0;L;;;;;N;;;;;
+31FE;KATAKANA LETTER SMALL RE;Lo;0;L;;;;;N;;;;;
+31FF;KATAKANA LETTER SMALL RO;Lo;0;L;;;;;N;;;;;
+3200;PARENTHESIZED HANGUL KIYEOK;So;0;L;<compat> 0028 1100 0029;;;;N;PARENTHESIZED HANGUL GIYEOG;;;;
+3201;PARENTHESIZED HANGUL NIEUN;So;0;L;<compat> 0028 1102 0029;;;;N;;;;;
+3202;PARENTHESIZED HANGUL TIKEUT;So;0;L;<compat> 0028 1103 0029;;;;N;PARENTHESIZED HANGUL DIGEUD;;;;
+3203;PARENTHESIZED HANGUL RIEUL;So;0;L;<compat> 0028 1105 0029;;;;N;PARENTHESIZED HANGUL LIEUL;;;;
+3204;PARENTHESIZED HANGUL MIEUM;So;0;L;<compat> 0028 1106 0029;;;;N;;;;;
+3205;PARENTHESIZED HANGUL PIEUP;So;0;L;<compat> 0028 1107 0029;;;;N;PARENTHESIZED HANGUL BIEUB;;;;
+3206;PARENTHESIZED HANGUL SIOS;So;0;L;<compat> 0028 1109 0029;;;;N;;;;;
+3207;PARENTHESIZED HANGUL IEUNG;So;0;L;<compat> 0028 110B 0029;;;;N;;;;;
+3208;PARENTHESIZED HANGUL CIEUC;So;0;L;<compat> 0028 110C 0029;;;;N;PARENTHESIZED HANGUL JIEUJ;;;;
+3209;PARENTHESIZED HANGUL CHIEUCH;So;0;L;<compat> 0028 110E 0029;;;;N;PARENTHESIZED HANGUL CIEUC;;;;
+320A;PARENTHESIZED HANGUL KHIEUKH;So;0;L;<compat> 0028 110F 0029;;;;N;PARENTHESIZED HANGUL KIYEOK;;;;
+320B;PARENTHESIZED HANGUL THIEUTH;So;0;L;<compat> 0028 1110 0029;;;;N;PARENTHESIZED HANGUL TIEUT;;;;
+320C;PARENTHESIZED HANGUL PHIEUPH;So;0;L;<compat> 0028 1111 0029;;;;N;PARENTHESIZED HANGUL PIEUP;;;;
+320D;PARENTHESIZED HANGUL HIEUH;So;0;L;<compat> 0028 1112 0029;;;;N;;;;;
+320E;PARENTHESIZED HANGUL KIYEOK A;So;0;L;<compat> 0028 1100 1161 0029;;;;N;PARENTHESIZED HANGUL GA;;;;
+320F;PARENTHESIZED HANGUL NIEUN A;So;0;L;<compat> 0028 1102 1161 0029;;;;N;PARENTHESIZED HANGUL NA;;;;
+3210;PARENTHESIZED HANGUL TIKEUT A;So;0;L;<compat> 0028 1103 1161 0029;;;;N;PARENTHESIZED HANGUL DA;;;;
+3211;PARENTHESIZED HANGUL RIEUL A;So;0;L;<compat> 0028 1105 1161 0029;;;;N;PARENTHESIZED HANGUL LA;;;;
+3212;PARENTHESIZED HANGUL MIEUM A;So;0;L;<compat> 0028 1106 1161 0029;;;;N;PARENTHESIZED HANGUL MA;;;;
+3213;PARENTHESIZED HANGUL PIEUP A;So;0;L;<compat> 0028 1107 1161 0029;;;;N;PARENTHESIZED HANGUL BA;;;;
+3214;PARENTHESIZED HANGUL SIOS A;So;0;L;<compat> 0028 1109 1161 0029;;;;N;PARENTHESIZED HANGUL SA;;;;
+3215;PARENTHESIZED HANGUL IEUNG A;So;0;L;<compat> 0028 110B 1161 0029;;;;N;PARENTHESIZED HANGUL A;;;;
+3216;PARENTHESIZED HANGUL CIEUC A;So;0;L;<compat> 0028 110C 1161 0029;;;;N;PARENTHESIZED HANGUL JA;;;;
+3217;PARENTHESIZED HANGUL CHIEUCH A;So;0;L;<compat> 0028 110E 1161 0029;;;;N;PARENTHESIZED HANGUL CA;;;;
+3218;PARENTHESIZED HANGUL KHIEUKH A;So;0;L;<compat> 0028 110F 1161 0029;;;;N;PARENTHESIZED HANGUL KA;;;;
+3219;PARENTHESIZED HANGUL THIEUTH A;So;0;L;<compat> 0028 1110 1161 0029;;;;N;PARENTHESIZED HANGUL TA;;;;
+321A;PARENTHESIZED HANGUL PHIEUPH A;So;0;L;<compat> 0028 1111 1161 0029;;;;N;PARENTHESIZED HANGUL PA;;;;
+321B;PARENTHESIZED HANGUL HIEUH A;So;0;L;<compat> 0028 1112 1161 0029;;;;N;PARENTHESIZED HANGUL HA;;;;
+321C;PARENTHESIZED HANGUL CIEUC U;So;0;L;<compat> 0028 110C 116E 0029;;;;N;PARENTHESIZED HANGUL JU;;;;
+321D;PARENTHESIZED KOREAN CHARACTER OJEON;So;0;ON;<compat> 0028 110B 1169 110C 1165 11AB 0029;;;;N;;;;;
+321E;PARENTHESIZED KOREAN CHARACTER O HU;So;0;ON;<compat> 0028 110B 1169 1112 116E 0029;;;;N;;;;;
+3220;PARENTHESIZED IDEOGRAPH ONE;No;0;L;<compat> 0028 4E00 0029;;;1;N;;;;;
+3221;PARENTHESIZED IDEOGRAPH TWO;No;0;L;<compat> 0028 4E8C 0029;;;2;N;;;;;
+3222;PARENTHESIZED IDEOGRAPH THREE;No;0;L;<compat> 0028 4E09 0029;;;3;N;;;;;
+3223;PARENTHESIZED IDEOGRAPH FOUR;No;0;L;<compat> 0028 56DB 0029;;;4;N;;;;;
+3224;PARENTHESIZED IDEOGRAPH FIVE;No;0;L;<compat> 0028 4E94 0029;;;5;N;;;;;
+3225;PARENTHESIZED IDEOGRAPH SIX;No;0;L;<compat> 0028 516D 0029;;;6;N;;;;;
+3226;PARENTHESIZED IDEOGRAPH SEVEN;No;0;L;<compat> 0028 4E03 0029;;;7;N;;;;;
+3227;PARENTHESIZED IDEOGRAPH EIGHT;No;0;L;<compat> 0028 516B 0029;;;8;N;;;;;
+3228;PARENTHESIZED IDEOGRAPH NINE;No;0;L;<compat> 0028 4E5D 0029;;;9;N;;;;;
+3229;PARENTHESIZED IDEOGRAPH TEN;No;0;L;<compat> 0028 5341 0029;;;10;N;;;;;
+322A;PARENTHESIZED IDEOGRAPH MOON;So;0;L;<compat> 0028 6708 0029;;;;N;;;;;
+322B;PARENTHESIZED IDEOGRAPH FIRE;So;0;L;<compat> 0028 706B 0029;;;;N;;;;;
+322C;PARENTHESIZED IDEOGRAPH WATER;So;0;L;<compat> 0028 6C34 0029;;;;N;;;;;
+322D;PARENTHESIZED IDEOGRAPH WOOD;So;0;L;<compat> 0028 6728 0029;;;;N;;;;;
+322E;PARENTHESIZED IDEOGRAPH METAL;So;0;L;<compat> 0028 91D1 0029;;;;N;;;;;
+322F;PARENTHESIZED IDEOGRAPH EARTH;So;0;L;<compat> 0028 571F 0029;;;;N;;;;;
+3230;PARENTHESIZED IDEOGRAPH SUN;So;0;L;<compat> 0028 65E5 0029;;;;N;;;;;
+3231;PARENTHESIZED IDEOGRAPH STOCK;So;0;L;<compat> 0028 682A 0029;;;;N;;;;;
+3232;PARENTHESIZED IDEOGRAPH HAVE;So;0;L;<compat> 0028 6709 0029;;;;N;;;;;
+3233;PARENTHESIZED IDEOGRAPH SOCIETY;So;0;L;<compat> 0028 793E 0029;;;;N;;;;;
+3234;PARENTHESIZED IDEOGRAPH NAME;So;0;L;<compat> 0028 540D 0029;;;;N;;;;;
+3235;PARENTHESIZED IDEOGRAPH SPECIAL;So;0;L;<compat> 0028 7279 0029;;;;N;;;;;
+3236;PARENTHESIZED IDEOGRAPH FINANCIAL;So;0;L;<compat> 0028 8CA1 0029;;;;N;;;;;
+3237;PARENTHESIZED IDEOGRAPH CONGRATULATION;So;0;L;<compat> 0028 795D 0029;;;;N;;;;;
+3238;PARENTHESIZED IDEOGRAPH LABOR;So;0;L;<compat> 0028 52B4 0029;;;;N;;;;;
+3239;PARENTHESIZED IDEOGRAPH REPRESENT;So;0;L;<compat> 0028 4EE3 0029;;;;N;;;;;
+323A;PARENTHESIZED IDEOGRAPH CALL;So;0;L;<compat> 0028 547C 0029;;;;N;;;;;
+323B;PARENTHESIZED IDEOGRAPH STUDY;So;0;L;<compat> 0028 5B66 0029;;;;N;;;;;
+323C;PARENTHESIZED IDEOGRAPH SUPERVISE;So;0;L;<compat> 0028 76E3 0029;;;;N;;;;;
+323D;PARENTHESIZED IDEOGRAPH ENTERPRISE;So;0;L;<compat> 0028 4F01 0029;;;;N;;;;;
+323E;PARENTHESIZED IDEOGRAPH RESOURCE;So;0;L;<compat> 0028 8CC7 0029;;;;N;;;;;
+323F;PARENTHESIZED IDEOGRAPH ALLIANCE;So;0;L;<compat> 0028 5354 0029;;;;N;;;;;
+3240;PARENTHESIZED IDEOGRAPH FESTIVAL;So;0;L;<compat> 0028 796D 0029;;;;N;;;;;
+3241;PARENTHESIZED IDEOGRAPH REST;So;0;L;<compat> 0028 4F11 0029;;;;N;;;;;
+3242;PARENTHESIZED IDEOGRAPH SELF;So;0;L;<compat> 0028 81EA 0029;;;;N;;;;;
+3243;PARENTHESIZED IDEOGRAPH REACH;So;0;L;<compat> 0028 81F3 0029;;;;N;;;;;
+3244;CIRCLED IDEOGRAPH QUESTION;So;0;L;<circle> 554F;;;;N;;;;;
+3245;CIRCLED IDEOGRAPH KINDERGARTEN;So;0;L;<circle> 5E7C;;;;N;;;;;
+3246;CIRCLED IDEOGRAPH SCHOOL;So;0;L;<circle> 6587;;;;N;;;;;
+3247;CIRCLED IDEOGRAPH KOTO;So;0;L;<circle> 7B8F;;;;N;;;;;
+3248;CIRCLED NUMBER TEN ON BLACK SQUARE;No;0;L;;;;10;N;;;;;
+3249;CIRCLED NUMBER TWENTY ON BLACK SQUARE;No;0;L;;;;20;N;;;;;
+324A;CIRCLED NUMBER THIRTY ON BLACK SQUARE;No;0;L;;;;30;N;;;;;
+324B;CIRCLED NUMBER FORTY ON BLACK SQUARE;No;0;L;;;;40;N;;;;;
+324C;CIRCLED NUMBER FIFTY ON BLACK SQUARE;No;0;L;;;;50;N;;;;;
+324D;CIRCLED NUMBER SIXTY ON BLACK SQUARE;No;0;L;;;;60;N;;;;;
+324E;CIRCLED NUMBER SEVENTY ON BLACK SQUARE;No;0;L;;;;70;N;;;;;
+324F;CIRCLED NUMBER EIGHTY ON BLACK SQUARE;No;0;L;;;;80;N;;;;;
+3250;PARTNERSHIP SIGN;So;0;ON;<square> 0050 0054 0045;;;;N;;;;;
+3251;CIRCLED NUMBER TWENTY ONE;No;0;ON;<circle> 0032 0031;;;21;N;;;;;
+3252;CIRCLED NUMBER TWENTY TWO;No;0;ON;<circle> 0032 0032;;;22;N;;;;;
+3253;CIRCLED NUMBER TWENTY THREE;No;0;ON;<circle> 0032 0033;;;23;N;;;;;
+3254;CIRCLED NUMBER TWENTY FOUR;No;0;ON;<circle> 0032 0034;;;24;N;;;;;
+3255;CIRCLED NUMBER TWENTY FIVE;No;0;ON;<circle> 0032 0035;;;25;N;;;;;
+3256;CIRCLED NUMBER TWENTY SIX;No;0;ON;<circle> 0032 0036;;;26;N;;;;;
+3257;CIRCLED NUMBER TWENTY SEVEN;No;0;ON;<circle> 0032 0037;;;27;N;;;;;
+3258;CIRCLED NUMBER TWENTY EIGHT;No;0;ON;<circle> 0032 0038;;;28;N;;;;;
+3259;CIRCLED NUMBER TWENTY NINE;No;0;ON;<circle> 0032 0039;;;29;N;;;;;
+325A;CIRCLED NUMBER THIRTY;No;0;ON;<circle> 0033 0030;;;30;N;;;;;
+325B;CIRCLED NUMBER THIRTY ONE;No;0;ON;<circle> 0033 0031;;;31;N;;;;;
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+325F;CIRCLED NUMBER THIRTY FIVE;No;0;ON;<circle> 0033 0035;;;35;N;;;;;
+3260;CIRCLED HANGUL KIYEOK;So;0;L;<circle> 1100;;;;N;CIRCLED HANGUL GIYEOG;;;;
+3261;CIRCLED HANGUL NIEUN;So;0;L;<circle> 1102;;;;N;;;;;
+3262;CIRCLED HANGUL TIKEUT;So;0;L;<circle> 1103;;;;N;CIRCLED HANGUL DIGEUD;;;;
+3263;CIRCLED HANGUL RIEUL;So;0;L;<circle> 1105;;;;N;CIRCLED HANGUL LIEUL;;;;
+3264;CIRCLED HANGUL MIEUM;So;0;L;<circle> 1106;;;;N;;;;;
+3265;CIRCLED HANGUL PIEUP;So;0;L;<circle> 1107;;;;N;CIRCLED HANGUL BIEUB;;;;
+3266;CIRCLED HANGUL SIOS;So;0;L;<circle> 1109;;;;N;;;;;
+3267;CIRCLED HANGUL IEUNG;So;0;L;<circle> 110B;;;;N;;;;;
+3268;CIRCLED HANGUL CIEUC;So;0;L;<circle> 110C;;;;N;CIRCLED HANGUL JIEUJ;;;;
+3269;CIRCLED HANGUL CHIEUCH;So;0;L;<circle> 110E;;;;N;CIRCLED HANGUL CIEUC;;;;
+326A;CIRCLED HANGUL KHIEUKH;So;0;L;<circle> 110F;;;;N;CIRCLED HANGUL KIYEOK;;;;
+326B;CIRCLED HANGUL THIEUTH;So;0;L;<circle> 1110;;;;N;CIRCLED HANGUL TIEUT;;;;
+326C;CIRCLED HANGUL PHIEUPH;So;0;L;<circle> 1111;;;;N;CIRCLED HANGUL PIEUP;;;;
+326D;CIRCLED HANGUL HIEUH;So;0;L;<circle> 1112;;;;N;;;;;
+326E;CIRCLED HANGUL KIYEOK A;So;0;L;<circle> 1100 1161;;;;N;CIRCLED HANGUL GA;;;;
+326F;CIRCLED HANGUL NIEUN A;So;0;L;<circle> 1102 1161;;;;N;CIRCLED HANGUL NA;;;;
+3270;CIRCLED HANGUL TIKEUT A;So;0;L;<circle> 1103 1161;;;;N;CIRCLED HANGUL DA;;;;
+3271;CIRCLED HANGUL RIEUL A;So;0;L;<circle> 1105 1161;;;;N;CIRCLED HANGUL LA;;;;
+3272;CIRCLED HANGUL MIEUM A;So;0;L;<circle> 1106 1161;;;;N;CIRCLED HANGUL MA;;;;
+3273;CIRCLED HANGUL PIEUP A;So;0;L;<circle> 1107 1161;;;;N;CIRCLED HANGUL BA;;;;
+3274;CIRCLED HANGUL SIOS A;So;0;L;<circle> 1109 1161;;;;N;CIRCLED HANGUL SA;;;;
+3275;CIRCLED HANGUL IEUNG A;So;0;L;<circle> 110B 1161;;;;N;CIRCLED HANGUL A;;;;
+3276;CIRCLED HANGUL CIEUC A;So;0;L;<circle> 110C 1161;;;;N;CIRCLED HANGUL JA;;;;
+3277;CIRCLED HANGUL CHIEUCH A;So;0;L;<circle> 110E 1161;;;;N;CIRCLED HANGUL CA;;;;
+3278;CIRCLED HANGUL KHIEUKH A;So;0;L;<circle> 110F 1161;;;;N;CIRCLED HANGUL KA;;;;
+3279;CIRCLED HANGUL THIEUTH A;So;0;L;<circle> 1110 1161;;;;N;CIRCLED HANGUL TA;;;;
+327A;CIRCLED HANGUL PHIEUPH A;So;0;L;<circle> 1111 1161;;;;N;CIRCLED HANGUL PA;;;;
+327B;CIRCLED HANGUL HIEUH A;So;0;L;<circle> 1112 1161;;;;N;CIRCLED HANGUL HA;;;;
+327C;CIRCLED KOREAN CHARACTER CHAMKO;So;0;ON;<circle> 110E 1161 11B7 1100 1169;;;;N;;;;;
+327D;CIRCLED KOREAN CHARACTER JUEUI;So;0;ON;<circle> 110C 116E 110B 1174;;;;N;;;;;
+327E;CIRCLED HANGUL IEUNG U;So;0;ON;<circle> 110B 116E;;;;N;;;;;
+327F;KOREAN STANDARD SYMBOL;So;0;L;;;;;N;;;;;
+3280;CIRCLED IDEOGRAPH ONE;No;0;L;<circle> 4E00;;;1;N;;;;;
+3281;CIRCLED IDEOGRAPH TWO;No;0;L;<circle> 4E8C;;;2;N;;;;;
+3282;CIRCLED IDEOGRAPH THREE;No;0;L;<circle> 4E09;;;3;N;;;;;
+3283;CIRCLED IDEOGRAPH FOUR;No;0;L;<circle> 56DB;;;4;N;;;;;
+3284;CIRCLED IDEOGRAPH FIVE;No;0;L;<circle> 4E94;;;5;N;;;;;
+3285;CIRCLED IDEOGRAPH SIX;No;0;L;<circle> 516D;;;6;N;;;;;
+3286;CIRCLED IDEOGRAPH SEVEN;No;0;L;<circle> 4E03;;;7;N;;;;;
+3287;CIRCLED IDEOGRAPH EIGHT;No;0;L;<circle> 516B;;;8;N;;;;;
+3288;CIRCLED IDEOGRAPH NINE;No;0;L;<circle> 4E5D;;;9;N;;;;;
+3289;CIRCLED IDEOGRAPH TEN;No;0;L;<circle> 5341;;;10;N;;;;;
+328A;CIRCLED IDEOGRAPH MOON;So;0;L;<circle> 6708;;;;N;;;;;
+328B;CIRCLED IDEOGRAPH FIRE;So;0;L;<circle> 706B;;;;N;;;;;
+328C;CIRCLED IDEOGRAPH WATER;So;0;L;<circle> 6C34;;;;N;;;;;
+328D;CIRCLED IDEOGRAPH WOOD;So;0;L;<circle> 6728;;;;N;;;;;
+328E;CIRCLED IDEOGRAPH METAL;So;0;L;<circle> 91D1;;;;N;;;;;
+328F;CIRCLED IDEOGRAPH EARTH;So;0;L;<circle> 571F;;;;N;;;;;
+3290;CIRCLED IDEOGRAPH SUN;So;0;L;<circle> 65E5;;;;N;;;;;
+3291;CIRCLED IDEOGRAPH STOCK;So;0;L;<circle> 682A;;;;N;;;;;
+3292;CIRCLED IDEOGRAPH HAVE;So;0;L;<circle> 6709;;;;N;;;;;
+3293;CIRCLED IDEOGRAPH SOCIETY;So;0;L;<circle> 793E;;;;N;;;;;
+3294;CIRCLED IDEOGRAPH NAME;So;0;L;<circle> 540D;;;;N;;;;;
+3295;CIRCLED IDEOGRAPH SPECIAL;So;0;L;<circle> 7279;;;;N;;;;;
+3296;CIRCLED IDEOGRAPH FINANCIAL;So;0;L;<circle> 8CA1;;;;N;;;;;
+3297;CIRCLED IDEOGRAPH CONGRATULATION;So;0;L;<circle> 795D;;;;N;;;;;
+3298;CIRCLED IDEOGRAPH LABOR;So;0;L;<circle> 52B4;;;;N;;;;;
+3299;CIRCLED IDEOGRAPH SECRET;So;0;L;<circle> 79D8;;;;N;;;;;
+329A;CIRCLED IDEOGRAPH MALE;So;0;L;<circle> 7537;;;;N;;;;;
+329B;CIRCLED IDEOGRAPH FEMALE;So;0;L;<circle> 5973;;;;N;;;;;
+329C;CIRCLED IDEOGRAPH SUITABLE;So;0;L;<circle> 9069;;;;N;;;;;
+329D;CIRCLED IDEOGRAPH EXCELLENT;So;0;L;<circle> 512A;;;;N;;;;;
+329E;CIRCLED IDEOGRAPH PRINT;So;0;L;<circle> 5370;;;;N;;;;;
+329F;CIRCLED IDEOGRAPH ATTENTION;So;0;L;<circle> 6CE8;;;;N;;;;;
+32A0;CIRCLED IDEOGRAPH ITEM;So;0;L;<circle> 9805;;;;N;;;;;
+32A1;CIRCLED IDEOGRAPH REST;So;0;L;<circle> 4F11;;;;N;;;;;
+32A2;CIRCLED IDEOGRAPH COPY;So;0;L;<circle> 5199;;;;N;;;;;
+32A3;CIRCLED IDEOGRAPH CORRECT;So;0;L;<circle> 6B63;;;;N;;;;;
+32A4;CIRCLED IDEOGRAPH HIGH;So;0;L;<circle> 4E0A;;;;N;;;;;
+32A5;CIRCLED IDEOGRAPH CENTRE;So;0;L;<circle> 4E2D;;;;N;CIRCLED IDEOGRAPH CENTER;;;;
+32A6;CIRCLED IDEOGRAPH LOW;So;0;L;<circle> 4E0B;;;;N;;;;;
+32A7;CIRCLED IDEOGRAPH LEFT;So;0;L;<circle> 5DE6;;;;N;;;;;
+32A8;CIRCLED IDEOGRAPH RIGHT;So;0;L;<circle> 53F3;;;;N;;;;;
+32A9;CIRCLED IDEOGRAPH MEDICINE;So;0;L;<circle> 533B;;;;N;;;;;
+32AA;CIRCLED IDEOGRAPH RELIGION;So;0;L;<circle> 5B97;;;;N;;;;;
+32AB;CIRCLED IDEOGRAPH STUDY;So;0;L;<circle> 5B66;;;;N;;;;;
+32AC;CIRCLED IDEOGRAPH SUPERVISE;So;0;L;<circle> 76E3;;;;N;;;;;
+32AD;CIRCLED IDEOGRAPH ENTERPRISE;So;0;L;<circle> 4F01;;;;N;;;;;
+32AE;CIRCLED IDEOGRAPH RESOURCE;So;0;L;<circle> 8CC7;;;;N;;;;;
+32AF;CIRCLED IDEOGRAPH ALLIANCE;So;0;L;<circle> 5354;;;;N;;;;;
+32B0;CIRCLED IDEOGRAPH NIGHT;So;0;L;<circle> 591C;;;;N;;;;;
+32B1;CIRCLED NUMBER THIRTY SIX;No;0;ON;<circle> 0033 0036;;;36;N;;;;;
+32B2;CIRCLED NUMBER THIRTY SEVEN;No;0;ON;<circle> 0033 0037;;;37;N;;;;;
+32B3;CIRCLED NUMBER THIRTY EIGHT;No;0;ON;<circle> 0033 0038;;;38;N;;;;;
+32B4;CIRCLED NUMBER THIRTY NINE;No;0;ON;<circle> 0033 0039;;;39;N;;;;;
+32B5;CIRCLED NUMBER FORTY;No;0;ON;<circle> 0034 0030;;;40;N;;;;;
+32B6;CIRCLED NUMBER FORTY ONE;No;0;ON;<circle> 0034 0031;;;41;N;;;;;
+32B7;CIRCLED NUMBER FORTY TWO;No;0;ON;<circle> 0034 0032;;;42;N;;;;;
+32B8;CIRCLED NUMBER FORTY THREE;No;0;ON;<circle> 0034 0033;;;43;N;;;;;
+32B9;CIRCLED NUMBER FORTY FOUR;No;0;ON;<circle> 0034 0034;;;44;N;;;;;
+32BA;CIRCLED NUMBER FORTY FIVE;No;0;ON;<circle> 0034 0035;;;45;N;;;;;
+32BB;CIRCLED NUMBER FORTY SIX;No;0;ON;<circle> 0034 0036;;;46;N;;;;;
+32BC;CIRCLED NUMBER FORTY SEVEN;No;0;ON;<circle> 0034 0037;;;47;N;;;;;
+32BD;CIRCLED NUMBER FORTY EIGHT;No;0;ON;<circle> 0034 0038;;;48;N;;;;;
+32BE;CIRCLED NUMBER FORTY NINE;No;0;ON;<circle> 0034 0039;;;49;N;;;;;
+32BF;CIRCLED NUMBER FIFTY;No;0;ON;<circle> 0035 0030;;;50;N;;;;;
+32C0;IDEOGRAPHIC TELEGRAPH SYMBOL FOR JANUARY;So;0;L;<compat> 0031 6708;;;;N;;;;;
+32C1;IDEOGRAPHIC TELEGRAPH SYMBOL FOR FEBRUARY;So;0;L;<compat> 0032 6708;;;;N;;;;;
+32C2;IDEOGRAPHIC TELEGRAPH SYMBOL FOR MARCH;So;0;L;<compat> 0033 6708;;;;N;;;;;
+32C3;IDEOGRAPHIC TELEGRAPH SYMBOL FOR APRIL;So;0;L;<compat> 0034 6708;;;;N;;;;;
+32C4;IDEOGRAPHIC TELEGRAPH SYMBOL FOR MAY;So;0;L;<compat> 0035 6708;;;;N;;;;;
+32C5;IDEOGRAPHIC TELEGRAPH SYMBOL FOR JUNE;So;0;L;<compat> 0036 6708;;;;N;;;;;
+32C6;IDEOGRAPHIC TELEGRAPH SYMBOL FOR JULY;So;0;L;<compat> 0037 6708;;;;N;;;;;
+32C7;IDEOGRAPHIC TELEGRAPH SYMBOL FOR AUGUST;So;0;L;<compat> 0038 6708;;;;N;;;;;
+32C8;IDEOGRAPHIC TELEGRAPH SYMBOL FOR SEPTEMBER;So;0;L;<compat> 0039 6708;;;;N;;;;;
+32C9;IDEOGRAPHIC TELEGRAPH SYMBOL FOR OCTOBER;So;0;L;<compat> 0031 0030 6708;;;;N;;;;;
+32CA;IDEOGRAPHIC TELEGRAPH SYMBOL FOR NOVEMBER;So;0;L;<compat> 0031 0031 6708;;;;N;;;;;
+32CB;IDEOGRAPHIC TELEGRAPH SYMBOL FOR DECEMBER;So;0;L;<compat> 0031 0032 6708;;;;N;;;;;
+32CC;SQUARE HG;So;0;ON;<square> 0048 0067;;;;N;;;;;
+32CD;SQUARE ERG;So;0;ON;<square> 0065 0072 0067;;;;N;;;;;
+32CE;SQUARE EV;So;0;ON;<square> 0065 0056;;;;N;;;;;
+32CF;LIMITED LIABILITY SIGN;So;0;ON;<square> 004C 0054 0044;;;;N;;;;;
+32D0;CIRCLED KATAKANA A;So;0;L;<circle> 30A2;;;;N;;;;;
+32D1;CIRCLED KATAKANA I;So;0;L;<circle> 30A4;;;;N;;;;;
+32D2;CIRCLED KATAKANA U;So;0;L;<circle> 30A6;;;;N;;;;;
+32D3;CIRCLED KATAKANA E;So;0;L;<circle> 30A8;;;;N;;;;;
+32D4;CIRCLED KATAKANA O;So;0;L;<circle> 30AA;;;;N;;;;;
+32D5;CIRCLED KATAKANA KA;So;0;L;<circle> 30AB;;;;N;;;;;
+32D6;CIRCLED KATAKANA KI;So;0;L;<circle> 30AD;;;;N;;;;;
+32D7;CIRCLED KATAKANA KU;So;0;L;<circle> 30AF;;;;N;;;;;
+32D8;CIRCLED KATAKANA KE;So;0;L;<circle> 30B1;;;;N;;;;;
+32D9;CIRCLED KATAKANA KO;So;0;L;<circle> 30B3;;;;N;;;;;
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+32DF;CIRCLED KATAKANA TA;So;0;L;<circle> 30BF;;;;N;;;;;
+32E0;CIRCLED KATAKANA TI;So;0;L;<circle> 30C1;;;;N;;;;;
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+A0A8;YI SYLLABLE HMUR;Lo;0;L;;;;;N;;;;;
+A0A9;YI SYLLABLE HMYX;Lo;0;L;;;;;N;;;;;
+A0AA;YI SYLLABLE HMY;Lo;0;L;;;;;N;;;;;
+A0AB;YI SYLLABLE HMYP;Lo;0;L;;;;;N;;;;;
+A0AC;YI SYLLABLE HMYRX;Lo;0;L;;;;;N;;;;;
+A0AD;YI SYLLABLE HMYR;Lo;0;L;;;;;N;;;;;
+A0AE;YI SYLLABLE MIT;Lo;0;L;;;;;N;;;;;
+A0AF;YI SYLLABLE MIX;Lo;0;L;;;;;N;;;;;
+A0B0;YI SYLLABLE MI;Lo;0;L;;;;;N;;;;;
+A0B1;YI SYLLABLE MIP;Lo;0;L;;;;;N;;;;;
+A0B2;YI SYLLABLE MIEX;Lo;0;L;;;;;N;;;;;
+A0B3;YI SYLLABLE MIE;Lo;0;L;;;;;N;;;;;
+A0B4;YI SYLLABLE MIEP;Lo;0;L;;;;;N;;;;;
+A0B5;YI SYLLABLE MAT;Lo;0;L;;;;;N;;;;;
+A0B6;YI SYLLABLE MAX;Lo;0;L;;;;;N;;;;;
+A0B7;YI SYLLABLE MA;Lo;0;L;;;;;N;;;;;
+A0B8;YI SYLLABLE MAP;Lo;0;L;;;;;N;;;;;
+A0B9;YI SYLLABLE MUOT;Lo;0;L;;;;;N;;;;;
+A0BA;YI SYLLABLE MUOX;Lo;0;L;;;;;N;;;;;
+A0BB;YI SYLLABLE MUO;Lo;0;L;;;;;N;;;;;
+A0BC;YI SYLLABLE MUOP;Lo;0;L;;;;;N;;;;;
+A0BD;YI SYLLABLE MOT;Lo;0;L;;;;;N;;;;;
+A0BE;YI SYLLABLE MOX;Lo;0;L;;;;;N;;;;;
+A0BF;YI SYLLABLE MO;Lo;0;L;;;;;N;;;;;
+A0C0;YI SYLLABLE MOP;Lo;0;L;;;;;N;;;;;
+A0C1;YI SYLLABLE MEX;Lo;0;L;;;;;N;;;;;
+A0C2;YI SYLLABLE ME;Lo;0;L;;;;;N;;;;;
+A0C3;YI SYLLABLE MUT;Lo;0;L;;;;;N;;;;;
+A0C4;YI SYLLABLE MUX;Lo;0;L;;;;;N;;;;;
+A0C5;YI SYLLABLE MU;Lo;0;L;;;;;N;;;;;
+A0C6;YI SYLLABLE MUP;Lo;0;L;;;;;N;;;;;
+A0C7;YI SYLLABLE MURX;Lo;0;L;;;;;N;;;;;
+A0C8;YI SYLLABLE MUR;Lo;0;L;;;;;N;;;;;
+A0C9;YI SYLLABLE MYT;Lo;0;L;;;;;N;;;;;
+A0CA;YI SYLLABLE MYX;Lo;0;L;;;;;N;;;;;
+A0CB;YI SYLLABLE MY;Lo;0;L;;;;;N;;;;;
+A0CC;YI SYLLABLE MYP;Lo;0;L;;;;;N;;;;;
+A0CD;YI SYLLABLE FIT;Lo;0;L;;;;;N;;;;;
+A0CE;YI SYLLABLE FIX;Lo;0;L;;;;;N;;;;;
+A0CF;YI SYLLABLE FI;Lo;0;L;;;;;N;;;;;
+A0D0;YI SYLLABLE FIP;Lo;0;L;;;;;N;;;;;
+A0D1;YI SYLLABLE FAT;Lo;0;L;;;;;N;;;;;
+A0D2;YI SYLLABLE FAX;Lo;0;L;;;;;N;;;;;
+A0D3;YI SYLLABLE FA;Lo;0;L;;;;;N;;;;;
+A0D4;YI SYLLABLE FAP;Lo;0;L;;;;;N;;;;;
+A0D5;YI SYLLABLE FOX;Lo;0;L;;;;;N;;;;;
+A0D6;YI SYLLABLE FO;Lo;0;L;;;;;N;;;;;
+A0D7;YI SYLLABLE FOP;Lo;0;L;;;;;N;;;;;
+A0D8;YI SYLLABLE FUT;Lo;0;L;;;;;N;;;;;
+A0D9;YI SYLLABLE FUX;Lo;0;L;;;;;N;;;;;
+A0DA;YI SYLLABLE FU;Lo;0;L;;;;;N;;;;;
+A0DB;YI SYLLABLE FUP;Lo;0;L;;;;;N;;;;;
+A0DC;YI SYLLABLE FURX;Lo;0;L;;;;;N;;;;;
+A0DD;YI SYLLABLE FUR;Lo;0;L;;;;;N;;;;;
+A0DE;YI SYLLABLE FYT;Lo;0;L;;;;;N;;;;;
+A0DF;YI SYLLABLE FYX;Lo;0;L;;;;;N;;;;;
+A0E0;YI SYLLABLE FY;Lo;0;L;;;;;N;;;;;
+A0E1;YI SYLLABLE FYP;Lo;0;L;;;;;N;;;;;
+A0E2;YI SYLLABLE VIT;Lo;0;L;;;;;N;;;;;
+A0E3;YI SYLLABLE VIX;Lo;0;L;;;;;N;;;;;
+A0E4;YI SYLLABLE VI;Lo;0;L;;;;;N;;;;;
+A0E5;YI SYLLABLE VIP;Lo;0;L;;;;;N;;;;;
+A0E6;YI SYLLABLE VIET;Lo;0;L;;;;;N;;;;;
+A0E7;YI SYLLABLE VIEX;Lo;0;L;;;;;N;;;;;
+A0E8;YI SYLLABLE VIE;Lo;0;L;;;;;N;;;;;
+A0E9;YI SYLLABLE VIEP;Lo;0;L;;;;;N;;;;;
+A0EA;YI SYLLABLE VAT;Lo;0;L;;;;;N;;;;;
+A0EB;YI SYLLABLE VAX;Lo;0;L;;;;;N;;;;;
+A0EC;YI SYLLABLE VA;Lo;0;L;;;;;N;;;;;
+A0ED;YI SYLLABLE VAP;Lo;0;L;;;;;N;;;;;
+A0EE;YI SYLLABLE VOT;Lo;0;L;;;;;N;;;;;
+A0EF;YI SYLLABLE VOX;Lo;0;L;;;;;N;;;;;
+A0F0;YI SYLLABLE VO;Lo;0;L;;;;;N;;;;;
+A0F1;YI SYLLABLE VOP;Lo;0;L;;;;;N;;;;;
+A0F2;YI SYLLABLE VEX;Lo;0;L;;;;;N;;;;;
+A0F3;YI SYLLABLE VEP;Lo;0;L;;;;;N;;;;;
+A0F4;YI SYLLABLE VUT;Lo;0;L;;;;;N;;;;;
+A0F5;YI SYLLABLE VUX;Lo;0;L;;;;;N;;;;;
+A0F6;YI SYLLABLE VU;Lo;0;L;;;;;N;;;;;
+A0F7;YI SYLLABLE VUP;Lo;0;L;;;;;N;;;;;
+A0F8;YI SYLLABLE VURX;Lo;0;L;;;;;N;;;;;
+A0F9;YI SYLLABLE VUR;Lo;0;L;;;;;N;;;;;
+A0FA;YI SYLLABLE VYT;Lo;0;L;;;;;N;;;;;
+A0FB;YI SYLLABLE VYX;Lo;0;L;;;;;N;;;;;
+A0FC;YI SYLLABLE VY;Lo;0;L;;;;;N;;;;;
+A0FD;YI SYLLABLE VYP;Lo;0;L;;;;;N;;;;;
+A0FE;YI SYLLABLE VYRX;Lo;0;L;;;;;N;;;;;
+A0FF;YI SYLLABLE VYR;Lo;0;L;;;;;N;;;;;
+A100;YI SYLLABLE DIT;Lo;0;L;;;;;N;;;;;
+A101;YI SYLLABLE DIX;Lo;0;L;;;;;N;;;;;
+A102;YI SYLLABLE DI;Lo;0;L;;;;;N;;;;;
+A103;YI SYLLABLE DIP;Lo;0;L;;;;;N;;;;;
+A104;YI SYLLABLE DIEX;Lo;0;L;;;;;N;;;;;
+A105;YI SYLLABLE DIE;Lo;0;L;;;;;N;;;;;
+A106;YI SYLLABLE DIEP;Lo;0;L;;;;;N;;;;;
+A107;YI SYLLABLE DAT;Lo;0;L;;;;;N;;;;;
+A108;YI SYLLABLE DAX;Lo;0;L;;;;;N;;;;;
+A109;YI SYLLABLE DA;Lo;0;L;;;;;N;;;;;
+A10A;YI SYLLABLE DAP;Lo;0;L;;;;;N;;;;;
+A10B;YI SYLLABLE DUOX;Lo;0;L;;;;;N;;;;;
+A10C;YI SYLLABLE DUO;Lo;0;L;;;;;N;;;;;
+A10D;YI SYLLABLE DOT;Lo;0;L;;;;;N;;;;;
+A10E;YI SYLLABLE DOX;Lo;0;L;;;;;N;;;;;
+A10F;YI SYLLABLE DO;Lo;0;L;;;;;N;;;;;
+A110;YI SYLLABLE DOP;Lo;0;L;;;;;N;;;;;
+A111;YI SYLLABLE DEX;Lo;0;L;;;;;N;;;;;
+A112;YI SYLLABLE DE;Lo;0;L;;;;;N;;;;;
+A113;YI SYLLABLE DEP;Lo;0;L;;;;;N;;;;;
+A114;YI SYLLABLE DUT;Lo;0;L;;;;;N;;;;;
+A115;YI SYLLABLE DUX;Lo;0;L;;;;;N;;;;;
+A116;YI SYLLABLE DU;Lo;0;L;;;;;N;;;;;
+A117;YI SYLLABLE DUP;Lo;0;L;;;;;N;;;;;
+A118;YI SYLLABLE DURX;Lo;0;L;;;;;N;;;;;
+A119;YI SYLLABLE DUR;Lo;0;L;;;;;N;;;;;
+A11A;YI SYLLABLE TIT;Lo;0;L;;;;;N;;;;;
+A11B;YI SYLLABLE TIX;Lo;0;L;;;;;N;;;;;
+A11C;YI SYLLABLE TI;Lo;0;L;;;;;N;;;;;
+A11D;YI SYLLABLE TIP;Lo;0;L;;;;;N;;;;;
+A11E;YI SYLLABLE TIEX;Lo;0;L;;;;;N;;;;;
+A11F;YI SYLLABLE TIE;Lo;0;L;;;;;N;;;;;
+A120;YI SYLLABLE TIEP;Lo;0;L;;;;;N;;;;;
+A121;YI SYLLABLE TAT;Lo;0;L;;;;;N;;;;;
+A122;YI SYLLABLE TAX;Lo;0;L;;;;;N;;;;;
+A123;YI SYLLABLE TA;Lo;0;L;;;;;N;;;;;
+A124;YI SYLLABLE TAP;Lo;0;L;;;;;N;;;;;
+A125;YI SYLLABLE TUOT;Lo;0;L;;;;;N;;;;;
+A126;YI SYLLABLE TUOX;Lo;0;L;;;;;N;;;;;
+A127;YI SYLLABLE TUO;Lo;0;L;;;;;N;;;;;
+A128;YI SYLLABLE TUOP;Lo;0;L;;;;;N;;;;;
+A129;YI SYLLABLE TOT;Lo;0;L;;;;;N;;;;;
+A12A;YI SYLLABLE TOX;Lo;0;L;;;;;N;;;;;
+A12B;YI SYLLABLE TO;Lo;0;L;;;;;N;;;;;
+A12C;YI SYLLABLE TOP;Lo;0;L;;;;;N;;;;;
+A12D;YI SYLLABLE TEX;Lo;0;L;;;;;N;;;;;
+A12E;YI SYLLABLE TE;Lo;0;L;;;;;N;;;;;
+A12F;YI SYLLABLE TEP;Lo;0;L;;;;;N;;;;;
+A130;YI SYLLABLE TUT;Lo;0;L;;;;;N;;;;;
+A131;YI SYLLABLE TUX;Lo;0;L;;;;;N;;;;;
+A132;YI SYLLABLE TU;Lo;0;L;;;;;N;;;;;
+A133;YI SYLLABLE TUP;Lo;0;L;;;;;N;;;;;
+A134;YI SYLLABLE TURX;Lo;0;L;;;;;N;;;;;
+A135;YI SYLLABLE TUR;Lo;0;L;;;;;N;;;;;
+A136;YI SYLLABLE DDIT;Lo;0;L;;;;;N;;;;;
+A137;YI SYLLABLE DDIX;Lo;0;L;;;;;N;;;;;
+A138;YI SYLLABLE DDI;Lo;0;L;;;;;N;;;;;
+A139;YI SYLLABLE DDIP;Lo;0;L;;;;;N;;;;;
+A13A;YI SYLLABLE DDIEX;Lo;0;L;;;;;N;;;;;
+A13B;YI SYLLABLE DDIE;Lo;0;L;;;;;N;;;;;
+A13C;YI SYLLABLE DDIEP;Lo;0;L;;;;;N;;;;;
+A13D;YI SYLLABLE DDAT;Lo;0;L;;;;;N;;;;;
+A13E;YI SYLLABLE DDAX;Lo;0;L;;;;;N;;;;;
+A13F;YI SYLLABLE DDA;Lo;0;L;;;;;N;;;;;
+A140;YI SYLLABLE DDAP;Lo;0;L;;;;;N;;;;;
+A141;YI SYLLABLE DDUOX;Lo;0;L;;;;;N;;;;;
+A142;YI SYLLABLE DDUO;Lo;0;L;;;;;N;;;;;
+A143;YI SYLLABLE DDUOP;Lo;0;L;;;;;N;;;;;
+A144;YI SYLLABLE DDOT;Lo;0;L;;;;;N;;;;;
+A145;YI SYLLABLE DDOX;Lo;0;L;;;;;N;;;;;
+A146;YI SYLLABLE DDO;Lo;0;L;;;;;N;;;;;
+A147;YI SYLLABLE DDOP;Lo;0;L;;;;;N;;;;;
+A148;YI SYLLABLE DDEX;Lo;0;L;;;;;N;;;;;
+A149;YI SYLLABLE DDE;Lo;0;L;;;;;N;;;;;
+A14A;YI SYLLABLE DDEP;Lo;0;L;;;;;N;;;;;
+A14B;YI SYLLABLE DDUT;Lo;0;L;;;;;N;;;;;
+A14C;YI SYLLABLE DDUX;Lo;0;L;;;;;N;;;;;
+A14D;YI SYLLABLE DDU;Lo;0;L;;;;;N;;;;;
+A14E;YI SYLLABLE DDUP;Lo;0;L;;;;;N;;;;;
+A14F;YI SYLLABLE DDURX;Lo;0;L;;;;;N;;;;;
+A150;YI SYLLABLE DDUR;Lo;0;L;;;;;N;;;;;
+A151;YI SYLLABLE NDIT;Lo;0;L;;;;;N;;;;;
+A152;YI SYLLABLE NDIX;Lo;0;L;;;;;N;;;;;
+A153;YI SYLLABLE NDI;Lo;0;L;;;;;N;;;;;
+A154;YI SYLLABLE NDIP;Lo;0;L;;;;;N;;;;;
+A155;YI SYLLABLE NDIEX;Lo;0;L;;;;;N;;;;;
+A156;YI SYLLABLE NDIE;Lo;0;L;;;;;N;;;;;
+A157;YI SYLLABLE NDAT;Lo;0;L;;;;;N;;;;;
+A158;YI SYLLABLE NDAX;Lo;0;L;;;;;N;;;;;
+A159;YI SYLLABLE NDA;Lo;0;L;;;;;N;;;;;
+A15A;YI SYLLABLE NDAP;Lo;0;L;;;;;N;;;;;
+A15B;YI SYLLABLE NDOT;Lo;0;L;;;;;N;;;;;
+A15C;YI SYLLABLE NDOX;Lo;0;L;;;;;N;;;;;
+A15D;YI SYLLABLE NDO;Lo;0;L;;;;;N;;;;;
+A15E;YI SYLLABLE NDOP;Lo;0;L;;;;;N;;;;;
+A15F;YI SYLLABLE NDEX;Lo;0;L;;;;;N;;;;;
+A160;YI SYLLABLE NDE;Lo;0;L;;;;;N;;;;;
+A161;YI SYLLABLE NDEP;Lo;0;L;;;;;N;;;;;
+A162;YI SYLLABLE NDUT;Lo;0;L;;;;;N;;;;;
+A163;YI SYLLABLE NDUX;Lo;0;L;;;;;N;;;;;
+A164;YI SYLLABLE NDU;Lo;0;L;;;;;N;;;;;
+A165;YI SYLLABLE NDUP;Lo;0;L;;;;;N;;;;;
+A166;YI SYLLABLE NDURX;Lo;0;L;;;;;N;;;;;
+A167;YI SYLLABLE NDUR;Lo;0;L;;;;;N;;;;;
+A168;YI SYLLABLE HNIT;Lo;0;L;;;;;N;;;;;
+A169;YI SYLLABLE HNIX;Lo;0;L;;;;;N;;;;;
+A16A;YI SYLLABLE HNI;Lo;0;L;;;;;N;;;;;
+A16B;YI SYLLABLE HNIP;Lo;0;L;;;;;N;;;;;
+A16C;YI SYLLABLE HNIET;Lo;0;L;;;;;N;;;;;
+A16D;YI SYLLABLE HNIEX;Lo;0;L;;;;;N;;;;;
+A16E;YI SYLLABLE HNIE;Lo;0;L;;;;;N;;;;;
+A16F;YI SYLLABLE HNIEP;Lo;0;L;;;;;N;;;;;
+A170;YI SYLLABLE HNAT;Lo;0;L;;;;;N;;;;;
+A171;YI SYLLABLE HNAX;Lo;0;L;;;;;N;;;;;
+A172;YI SYLLABLE HNA;Lo;0;L;;;;;N;;;;;
+A173;YI SYLLABLE HNAP;Lo;0;L;;;;;N;;;;;
+A174;YI SYLLABLE HNUOX;Lo;0;L;;;;;N;;;;;
+A175;YI SYLLABLE HNUO;Lo;0;L;;;;;N;;;;;
+A176;YI SYLLABLE HNOT;Lo;0;L;;;;;N;;;;;
+A177;YI SYLLABLE HNOX;Lo;0;L;;;;;N;;;;;
+A178;YI SYLLABLE HNOP;Lo;0;L;;;;;N;;;;;
+A179;YI SYLLABLE HNEX;Lo;0;L;;;;;N;;;;;
+A17A;YI SYLLABLE HNE;Lo;0;L;;;;;N;;;;;
+A17B;YI SYLLABLE HNEP;Lo;0;L;;;;;N;;;;;
+A17C;YI SYLLABLE HNUT;Lo;0;L;;;;;N;;;;;
+A17D;YI SYLLABLE NIT;Lo;0;L;;;;;N;;;;;
+A17E;YI SYLLABLE NIX;Lo;0;L;;;;;N;;;;;
+A17F;YI SYLLABLE NI;Lo;0;L;;;;;N;;;;;
+A180;YI SYLLABLE NIP;Lo;0;L;;;;;N;;;;;
+A181;YI SYLLABLE NIEX;Lo;0;L;;;;;N;;;;;
+A182;YI SYLLABLE NIE;Lo;0;L;;;;;N;;;;;
+A183;YI SYLLABLE NIEP;Lo;0;L;;;;;N;;;;;
+A184;YI SYLLABLE NAX;Lo;0;L;;;;;N;;;;;
+A185;YI SYLLABLE NA;Lo;0;L;;;;;N;;;;;
+A186;YI SYLLABLE NAP;Lo;0;L;;;;;N;;;;;
+A187;YI SYLLABLE NUOX;Lo;0;L;;;;;N;;;;;
+A188;YI SYLLABLE NUO;Lo;0;L;;;;;N;;;;;
+A189;YI SYLLABLE NUOP;Lo;0;L;;;;;N;;;;;
+A18A;YI SYLLABLE NOT;Lo;0;L;;;;;N;;;;;
+A18B;YI SYLLABLE NOX;Lo;0;L;;;;;N;;;;;
+A18C;YI SYLLABLE NO;Lo;0;L;;;;;N;;;;;
+A18D;YI SYLLABLE NOP;Lo;0;L;;;;;N;;;;;
+A18E;YI SYLLABLE NEX;Lo;0;L;;;;;N;;;;;
+A18F;YI SYLLABLE NE;Lo;0;L;;;;;N;;;;;
+A190;YI SYLLABLE NEP;Lo;0;L;;;;;N;;;;;
+A191;YI SYLLABLE NUT;Lo;0;L;;;;;N;;;;;
+A192;YI SYLLABLE NUX;Lo;0;L;;;;;N;;;;;
+A193;YI SYLLABLE NU;Lo;0;L;;;;;N;;;;;
+A194;YI SYLLABLE NUP;Lo;0;L;;;;;N;;;;;
+A195;YI SYLLABLE NURX;Lo;0;L;;;;;N;;;;;
+A196;YI SYLLABLE NUR;Lo;0;L;;;;;N;;;;;
+A197;YI SYLLABLE HLIT;Lo;0;L;;;;;N;;;;;
+A198;YI SYLLABLE HLIX;Lo;0;L;;;;;N;;;;;
+A199;YI SYLLABLE HLI;Lo;0;L;;;;;N;;;;;
+A19A;YI SYLLABLE HLIP;Lo;0;L;;;;;N;;;;;
+A19B;YI SYLLABLE HLIEX;Lo;0;L;;;;;N;;;;;
+A19C;YI SYLLABLE HLIE;Lo;0;L;;;;;N;;;;;
+A19D;YI SYLLABLE HLIEP;Lo;0;L;;;;;N;;;;;
+A19E;YI SYLLABLE HLAT;Lo;0;L;;;;;N;;;;;
+A19F;YI SYLLABLE HLAX;Lo;0;L;;;;;N;;;;;
+A1A0;YI SYLLABLE HLA;Lo;0;L;;;;;N;;;;;
+A1A1;YI SYLLABLE HLAP;Lo;0;L;;;;;N;;;;;
+A1A2;YI SYLLABLE HLUOX;Lo;0;L;;;;;N;;;;;
+A1A3;YI SYLLABLE HLUO;Lo;0;L;;;;;N;;;;;
+A1A4;YI SYLLABLE HLUOP;Lo;0;L;;;;;N;;;;;
+A1A5;YI SYLLABLE HLOX;Lo;0;L;;;;;N;;;;;
+A1A6;YI SYLLABLE HLO;Lo;0;L;;;;;N;;;;;
+A1A7;YI SYLLABLE HLOP;Lo;0;L;;;;;N;;;;;
+A1A8;YI SYLLABLE HLEX;Lo;0;L;;;;;N;;;;;
+A1A9;YI SYLLABLE HLE;Lo;0;L;;;;;N;;;;;
+A1AA;YI SYLLABLE HLEP;Lo;0;L;;;;;N;;;;;
+A1AB;YI SYLLABLE HLUT;Lo;0;L;;;;;N;;;;;
+A1AC;YI SYLLABLE HLUX;Lo;0;L;;;;;N;;;;;
+A1AD;YI SYLLABLE HLU;Lo;0;L;;;;;N;;;;;
+A1AE;YI SYLLABLE HLUP;Lo;0;L;;;;;N;;;;;
+A1AF;YI SYLLABLE HLURX;Lo;0;L;;;;;N;;;;;
+A1B0;YI SYLLABLE HLUR;Lo;0;L;;;;;N;;;;;
+A1B1;YI SYLLABLE HLYT;Lo;0;L;;;;;N;;;;;
+A1B2;YI SYLLABLE HLYX;Lo;0;L;;;;;N;;;;;
+A1B3;YI SYLLABLE HLY;Lo;0;L;;;;;N;;;;;
+A1B4;YI SYLLABLE HLYP;Lo;0;L;;;;;N;;;;;
+A1B5;YI SYLLABLE HLYRX;Lo;0;L;;;;;N;;;;;
+A1B6;YI SYLLABLE HLYR;Lo;0;L;;;;;N;;;;;
+A1B7;YI SYLLABLE LIT;Lo;0;L;;;;;N;;;;;
+A1B8;YI SYLLABLE LIX;Lo;0;L;;;;;N;;;;;
+A1B9;YI SYLLABLE LI;Lo;0;L;;;;;N;;;;;
+A1BA;YI SYLLABLE LIP;Lo;0;L;;;;;N;;;;;
+A1BB;YI SYLLABLE LIET;Lo;0;L;;;;;N;;;;;
+A1BC;YI SYLLABLE LIEX;Lo;0;L;;;;;N;;;;;
+A1BD;YI SYLLABLE LIE;Lo;0;L;;;;;N;;;;;
+A1BE;YI SYLLABLE LIEP;Lo;0;L;;;;;N;;;;;
+A1BF;YI SYLLABLE LAT;Lo;0;L;;;;;N;;;;;
+A1C0;YI SYLLABLE LAX;Lo;0;L;;;;;N;;;;;
+A1C1;YI SYLLABLE LA;Lo;0;L;;;;;N;;;;;
+A1C2;YI SYLLABLE LAP;Lo;0;L;;;;;N;;;;;
+A1C3;YI SYLLABLE LUOT;Lo;0;L;;;;;N;;;;;
+A1C4;YI SYLLABLE LUOX;Lo;0;L;;;;;N;;;;;
+A1C5;YI SYLLABLE LUO;Lo;0;L;;;;;N;;;;;
+A1C6;YI SYLLABLE LUOP;Lo;0;L;;;;;N;;;;;
+A1C7;YI SYLLABLE LOT;Lo;0;L;;;;;N;;;;;
+A1C8;YI SYLLABLE LOX;Lo;0;L;;;;;N;;;;;
+A1C9;YI SYLLABLE LO;Lo;0;L;;;;;N;;;;;
+A1CA;YI SYLLABLE LOP;Lo;0;L;;;;;N;;;;;
+A1CB;YI SYLLABLE LEX;Lo;0;L;;;;;N;;;;;
+A1CC;YI SYLLABLE LE;Lo;0;L;;;;;N;;;;;
+A1CD;YI SYLLABLE LEP;Lo;0;L;;;;;N;;;;;
+A1CE;YI SYLLABLE LUT;Lo;0;L;;;;;N;;;;;
+A1CF;YI SYLLABLE LUX;Lo;0;L;;;;;N;;;;;
+A1D0;YI SYLLABLE LU;Lo;0;L;;;;;N;;;;;
+A1D1;YI SYLLABLE LUP;Lo;0;L;;;;;N;;;;;
+A1D2;YI SYLLABLE LURX;Lo;0;L;;;;;N;;;;;
+A1D3;YI SYLLABLE LUR;Lo;0;L;;;;;N;;;;;
+A1D4;YI SYLLABLE LYT;Lo;0;L;;;;;N;;;;;
+A1D5;YI SYLLABLE LYX;Lo;0;L;;;;;N;;;;;
+A1D6;YI SYLLABLE LY;Lo;0;L;;;;;N;;;;;
+A1D7;YI SYLLABLE LYP;Lo;0;L;;;;;N;;;;;
+A1D8;YI SYLLABLE LYRX;Lo;0;L;;;;;N;;;;;
+A1D9;YI SYLLABLE LYR;Lo;0;L;;;;;N;;;;;
+A1DA;YI SYLLABLE GIT;Lo;0;L;;;;;N;;;;;
+A1DB;YI SYLLABLE GIX;Lo;0;L;;;;;N;;;;;
+A1DC;YI SYLLABLE GI;Lo;0;L;;;;;N;;;;;
+A1DD;YI SYLLABLE GIP;Lo;0;L;;;;;N;;;;;
+A1DE;YI SYLLABLE GIET;Lo;0;L;;;;;N;;;;;
+A1DF;YI SYLLABLE GIEX;Lo;0;L;;;;;N;;;;;
+A1E0;YI SYLLABLE GIE;Lo;0;L;;;;;N;;;;;
+A1E1;YI SYLLABLE GIEP;Lo;0;L;;;;;N;;;;;
+A1E2;YI SYLLABLE GAT;Lo;0;L;;;;;N;;;;;
+A1E3;YI SYLLABLE GAX;Lo;0;L;;;;;N;;;;;
+A1E4;YI SYLLABLE GA;Lo;0;L;;;;;N;;;;;
+A1E5;YI SYLLABLE GAP;Lo;0;L;;;;;N;;;;;
+A1E6;YI SYLLABLE GUOT;Lo;0;L;;;;;N;;;;;
+A1E7;YI SYLLABLE GUOX;Lo;0;L;;;;;N;;;;;
+A1E8;YI SYLLABLE GUO;Lo;0;L;;;;;N;;;;;
+A1E9;YI SYLLABLE GUOP;Lo;0;L;;;;;N;;;;;
+A1EA;YI SYLLABLE GOT;Lo;0;L;;;;;N;;;;;
+A1EB;YI SYLLABLE GOX;Lo;0;L;;;;;N;;;;;
+A1EC;YI SYLLABLE GO;Lo;0;L;;;;;N;;;;;
+A1ED;YI SYLLABLE GOP;Lo;0;L;;;;;N;;;;;
+A1EE;YI SYLLABLE GET;Lo;0;L;;;;;N;;;;;
+A1EF;YI SYLLABLE GEX;Lo;0;L;;;;;N;;;;;
+A1F0;YI SYLLABLE GE;Lo;0;L;;;;;N;;;;;
+A1F1;YI SYLLABLE GEP;Lo;0;L;;;;;N;;;;;
+A1F2;YI SYLLABLE GUT;Lo;0;L;;;;;N;;;;;
+A1F3;YI SYLLABLE GUX;Lo;0;L;;;;;N;;;;;
+A1F4;YI SYLLABLE GU;Lo;0;L;;;;;N;;;;;
+A1F5;YI SYLLABLE GUP;Lo;0;L;;;;;N;;;;;
+A1F6;YI SYLLABLE GURX;Lo;0;L;;;;;N;;;;;
+A1F7;YI SYLLABLE GUR;Lo;0;L;;;;;N;;;;;
+A1F8;YI SYLLABLE KIT;Lo;0;L;;;;;N;;;;;
+A1F9;YI SYLLABLE KIX;Lo;0;L;;;;;N;;;;;
+A1FA;YI SYLLABLE KI;Lo;0;L;;;;;N;;;;;
+A1FB;YI SYLLABLE KIP;Lo;0;L;;;;;N;;;;;
+A1FC;YI SYLLABLE KIEX;Lo;0;L;;;;;N;;;;;
+A1FD;YI SYLLABLE KIE;Lo;0;L;;;;;N;;;;;
+A1FE;YI SYLLABLE KIEP;Lo;0;L;;;;;N;;;;;
+A1FF;YI SYLLABLE KAT;Lo;0;L;;;;;N;;;;;
+A200;YI SYLLABLE KAX;Lo;0;L;;;;;N;;;;;
+A201;YI SYLLABLE KA;Lo;0;L;;;;;N;;;;;
+A202;YI SYLLABLE KAP;Lo;0;L;;;;;N;;;;;
+A203;YI SYLLABLE KUOX;Lo;0;L;;;;;N;;;;;
+A204;YI SYLLABLE KUO;Lo;0;L;;;;;N;;;;;
+A205;YI SYLLABLE KUOP;Lo;0;L;;;;;N;;;;;
+A206;YI SYLLABLE KOT;Lo;0;L;;;;;N;;;;;
+A207;YI SYLLABLE KOX;Lo;0;L;;;;;N;;;;;
+A208;YI SYLLABLE KO;Lo;0;L;;;;;N;;;;;
+A209;YI SYLLABLE KOP;Lo;0;L;;;;;N;;;;;
+A20A;YI SYLLABLE KET;Lo;0;L;;;;;N;;;;;
+A20B;YI SYLLABLE KEX;Lo;0;L;;;;;N;;;;;
+A20C;YI SYLLABLE KE;Lo;0;L;;;;;N;;;;;
+A20D;YI SYLLABLE KEP;Lo;0;L;;;;;N;;;;;
+A20E;YI SYLLABLE KUT;Lo;0;L;;;;;N;;;;;
+A20F;YI SYLLABLE KUX;Lo;0;L;;;;;N;;;;;
+A210;YI SYLLABLE KU;Lo;0;L;;;;;N;;;;;
+A211;YI SYLLABLE KUP;Lo;0;L;;;;;N;;;;;
+A212;YI SYLLABLE KURX;Lo;0;L;;;;;N;;;;;
+A213;YI SYLLABLE KUR;Lo;0;L;;;;;N;;;;;
+A214;YI SYLLABLE GGIT;Lo;0;L;;;;;N;;;;;
+A215;YI SYLLABLE GGIX;Lo;0;L;;;;;N;;;;;
+A216;YI SYLLABLE GGI;Lo;0;L;;;;;N;;;;;
+A217;YI SYLLABLE GGIEX;Lo;0;L;;;;;N;;;;;
+A218;YI SYLLABLE GGIE;Lo;0;L;;;;;N;;;;;
+A219;YI SYLLABLE GGIEP;Lo;0;L;;;;;N;;;;;
+A21A;YI SYLLABLE GGAT;Lo;0;L;;;;;N;;;;;
+A21B;YI SYLLABLE GGAX;Lo;0;L;;;;;N;;;;;
+A21C;YI SYLLABLE GGA;Lo;0;L;;;;;N;;;;;
+A21D;YI SYLLABLE GGAP;Lo;0;L;;;;;N;;;;;
+A21E;YI SYLLABLE GGUOT;Lo;0;L;;;;;N;;;;;
+A21F;YI SYLLABLE GGUOX;Lo;0;L;;;;;N;;;;;
+A220;YI SYLLABLE GGUO;Lo;0;L;;;;;N;;;;;
+A221;YI SYLLABLE GGUOP;Lo;0;L;;;;;N;;;;;
+A222;YI SYLLABLE GGOT;Lo;0;L;;;;;N;;;;;
+A223;YI SYLLABLE GGOX;Lo;0;L;;;;;N;;;;;
+A224;YI SYLLABLE GGO;Lo;0;L;;;;;N;;;;;
+A225;YI SYLLABLE GGOP;Lo;0;L;;;;;N;;;;;
+A226;YI SYLLABLE GGET;Lo;0;L;;;;;N;;;;;
+A227;YI SYLLABLE GGEX;Lo;0;L;;;;;N;;;;;
+A228;YI SYLLABLE GGE;Lo;0;L;;;;;N;;;;;
+A229;YI SYLLABLE GGEP;Lo;0;L;;;;;N;;;;;
+A22A;YI SYLLABLE GGUT;Lo;0;L;;;;;N;;;;;
+A22B;YI SYLLABLE GGUX;Lo;0;L;;;;;N;;;;;
+A22C;YI SYLLABLE GGU;Lo;0;L;;;;;N;;;;;
+A22D;YI SYLLABLE GGUP;Lo;0;L;;;;;N;;;;;
+A22E;YI SYLLABLE GGURX;Lo;0;L;;;;;N;;;;;
+A22F;YI SYLLABLE GGUR;Lo;0;L;;;;;N;;;;;
+A230;YI SYLLABLE MGIEX;Lo;0;L;;;;;N;;;;;
+A231;YI SYLLABLE MGIE;Lo;0;L;;;;;N;;;;;
+A232;YI SYLLABLE MGAT;Lo;0;L;;;;;N;;;;;
+A233;YI SYLLABLE MGAX;Lo;0;L;;;;;N;;;;;
+A234;YI SYLLABLE MGA;Lo;0;L;;;;;N;;;;;
+A235;YI SYLLABLE MGAP;Lo;0;L;;;;;N;;;;;
+A236;YI SYLLABLE MGUOX;Lo;0;L;;;;;N;;;;;
+A237;YI SYLLABLE MGUO;Lo;0;L;;;;;N;;;;;
+A238;YI SYLLABLE MGUOP;Lo;0;L;;;;;N;;;;;
+A239;YI SYLLABLE MGOT;Lo;0;L;;;;;N;;;;;
+A23A;YI SYLLABLE MGOX;Lo;0;L;;;;;N;;;;;
+A23B;YI SYLLABLE MGO;Lo;0;L;;;;;N;;;;;
+A23C;YI SYLLABLE MGOP;Lo;0;L;;;;;N;;;;;
+A23D;YI SYLLABLE MGEX;Lo;0;L;;;;;N;;;;;
+A23E;YI SYLLABLE MGE;Lo;0;L;;;;;N;;;;;
+A23F;YI SYLLABLE MGEP;Lo;0;L;;;;;N;;;;;
+A240;YI SYLLABLE MGUT;Lo;0;L;;;;;N;;;;;
+A241;YI SYLLABLE MGUX;Lo;0;L;;;;;N;;;;;
+A242;YI SYLLABLE MGU;Lo;0;L;;;;;N;;;;;
+A243;YI SYLLABLE MGUP;Lo;0;L;;;;;N;;;;;
+A244;YI SYLLABLE MGURX;Lo;0;L;;;;;N;;;;;
+A245;YI SYLLABLE MGUR;Lo;0;L;;;;;N;;;;;
+A246;YI SYLLABLE HXIT;Lo;0;L;;;;;N;;;;;
+A247;YI SYLLABLE HXIX;Lo;0;L;;;;;N;;;;;
+A248;YI SYLLABLE HXI;Lo;0;L;;;;;N;;;;;
+A249;YI SYLLABLE HXIP;Lo;0;L;;;;;N;;;;;
+A24A;YI SYLLABLE HXIET;Lo;0;L;;;;;N;;;;;
+A24B;YI SYLLABLE HXIEX;Lo;0;L;;;;;N;;;;;
+A24C;YI SYLLABLE HXIE;Lo;0;L;;;;;N;;;;;
+A24D;YI SYLLABLE HXIEP;Lo;0;L;;;;;N;;;;;
+A24E;YI SYLLABLE HXAT;Lo;0;L;;;;;N;;;;;
+A24F;YI SYLLABLE HXAX;Lo;0;L;;;;;N;;;;;
+A250;YI SYLLABLE HXA;Lo;0;L;;;;;N;;;;;
+A251;YI SYLLABLE HXAP;Lo;0;L;;;;;N;;;;;
+A252;YI SYLLABLE HXUOT;Lo;0;L;;;;;N;;;;;
+A253;YI SYLLABLE HXUOX;Lo;0;L;;;;;N;;;;;
+A254;YI SYLLABLE HXUO;Lo;0;L;;;;;N;;;;;
+A255;YI SYLLABLE HXUOP;Lo;0;L;;;;;N;;;;;
+A256;YI SYLLABLE HXOT;Lo;0;L;;;;;N;;;;;
+A257;YI SYLLABLE HXOX;Lo;0;L;;;;;N;;;;;
+A258;YI SYLLABLE HXO;Lo;0;L;;;;;N;;;;;
+A259;YI SYLLABLE HXOP;Lo;0;L;;;;;N;;;;;
+A25A;YI SYLLABLE HXEX;Lo;0;L;;;;;N;;;;;
+A25B;YI SYLLABLE HXE;Lo;0;L;;;;;N;;;;;
+A25C;YI SYLLABLE HXEP;Lo;0;L;;;;;N;;;;;
+A25D;YI SYLLABLE NGIEX;Lo;0;L;;;;;N;;;;;
+A25E;YI SYLLABLE NGIE;Lo;0;L;;;;;N;;;;;
+A25F;YI SYLLABLE NGIEP;Lo;0;L;;;;;N;;;;;
+A260;YI SYLLABLE NGAT;Lo;0;L;;;;;N;;;;;
+A261;YI SYLLABLE NGAX;Lo;0;L;;;;;N;;;;;
+A262;YI SYLLABLE NGA;Lo;0;L;;;;;N;;;;;
+A263;YI SYLLABLE NGAP;Lo;0;L;;;;;N;;;;;
+A264;YI SYLLABLE NGUOT;Lo;0;L;;;;;N;;;;;
+A265;YI SYLLABLE NGUOX;Lo;0;L;;;;;N;;;;;
+A266;YI SYLLABLE NGUO;Lo;0;L;;;;;N;;;;;
+A267;YI SYLLABLE NGOT;Lo;0;L;;;;;N;;;;;
+A268;YI SYLLABLE NGOX;Lo;0;L;;;;;N;;;;;
+A269;YI SYLLABLE NGO;Lo;0;L;;;;;N;;;;;
+A26A;YI SYLLABLE NGOP;Lo;0;L;;;;;N;;;;;
+A26B;YI SYLLABLE NGEX;Lo;0;L;;;;;N;;;;;
+A26C;YI SYLLABLE NGE;Lo;0;L;;;;;N;;;;;
+A26D;YI SYLLABLE NGEP;Lo;0;L;;;;;N;;;;;
+A26E;YI SYLLABLE HIT;Lo;0;L;;;;;N;;;;;
+A26F;YI SYLLABLE HIEX;Lo;0;L;;;;;N;;;;;
+A270;YI SYLLABLE HIE;Lo;0;L;;;;;N;;;;;
+A271;YI SYLLABLE HAT;Lo;0;L;;;;;N;;;;;
+A272;YI SYLLABLE HAX;Lo;0;L;;;;;N;;;;;
+A273;YI SYLLABLE HA;Lo;0;L;;;;;N;;;;;
+A274;YI SYLLABLE HAP;Lo;0;L;;;;;N;;;;;
+A275;YI SYLLABLE HUOT;Lo;0;L;;;;;N;;;;;
+A276;YI SYLLABLE HUOX;Lo;0;L;;;;;N;;;;;
+A277;YI SYLLABLE HUO;Lo;0;L;;;;;N;;;;;
+A278;YI SYLLABLE HUOP;Lo;0;L;;;;;N;;;;;
+A279;YI SYLLABLE HOT;Lo;0;L;;;;;N;;;;;
+A27A;YI SYLLABLE HOX;Lo;0;L;;;;;N;;;;;
+A27B;YI SYLLABLE HO;Lo;0;L;;;;;N;;;;;
+A27C;YI SYLLABLE HOP;Lo;0;L;;;;;N;;;;;
+A27D;YI SYLLABLE HEX;Lo;0;L;;;;;N;;;;;
+A27E;YI SYLLABLE HE;Lo;0;L;;;;;N;;;;;
+A27F;YI SYLLABLE HEP;Lo;0;L;;;;;N;;;;;
+A280;YI SYLLABLE WAT;Lo;0;L;;;;;N;;;;;
+A281;YI SYLLABLE WAX;Lo;0;L;;;;;N;;;;;
+A282;YI SYLLABLE WA;Lo;0;L;;;;;N;;;;;
+A283;YI SYLLABLE WAP;Lo;0;L;;;;;N;;;;;
+A284;YI SYLLABLE WUOX;Lo;0;L;;;;;N;;;;;
+A285;YI SYLLABLE WUO;Lo;0;L;;;;;N;;;;;
+A286;YI SYLLABLE WUOP;Lo;0;L;;;;;N;;;;;
+A287;YI SYLLABLE WOX;Lo;0;L;;;;;N;;;;;
+A288;YI SYLLABLE WO;Lo;0;L;;;;;N;;;;;
+A289;YI SYLLABLE WOP;Lo;0;L;;;;;N;;;;;
+A28A;YI SYLLABLE WEX;Lo;0;L;;;;;N;;;;;
+A28B;YI SYLLABLE WE;Lo;0;L;;;;;N;;;;;
+A28C;YI SYLLABLE WEP;Lo;0;L;;;;;N;;;;;
+A28D;YI SYLLABLE ZIT;Lo;0;L;;;;;N;;;;;
+A28E;YI SYLLABLE ZIX;Lo;0;L;;;;;N;;;;;
+A28F;YI SYLLABLE ZI;Lo;0;L;;;;;N;;;;;
+A290;YI SYLLABLE ZIP;Lo;0;L;;;;;N;;;;;
+A291;YI SYLLABLE ZIEX;Lo;0;L;;;;;N;;;;;
+A292;YI SYLLABLE ZIE;Lo;0;L;;;;;N;;;;;
+A293;YI SYLLABLE ZIEP;Lo;0;L;;;;;N;;;;;
+A294;YI SYLLABLE ZAT;Lo;0;L;;;;;N;;;;;
+A295;YI SYLLABLE ZAX;Lo;0;L;;;;;N;;;;;
+A296;YI SYLLABLE ZA;Lo;0;L;;;;;N;;;;;
+A297;YI SYLLABLE ZAP;Lo;0;L;;;;;N;;;;;
+A298;YI SYLLABLE ZUOX;Lo;0;L;;;;;N;;;;;
+A299;YI SYLLABLE ZUO;Lo;0;L;;;;;N;;;;;
+A29A;YI SYLLABLE ZUOP;Lo;0;L;;;;;N;;;;;
+A29B;YI SYLLABLE ZOT;Lo;0;L;;;;;N;;;;;
+A29C;YI SYLLABLE ZOX;Lo;0;L;;;;;N;;;;;
+A29D;YI SYLLABLE ZO;Lo;0;L;;;;;N;;;;;
+A29E;YI SYLLABLE ZOP;Lo;0;L;;;;;N;;;;;
+A29F;YI SYLLABLE ZEX;Lo;0;L;;;;;N;;;;;
+A2A0;YI SYLLABLE ZE;Lo;0;L;;;;;N;;;;;
+A2A1;YI SYLLABLE ZEP;Lo;0;L;;;;;N;;;;;
+A2A2;YI SYLLABLE ZUT;Lo;0;L;;;;;N;;;;;
+A2A3;YI SYLLABLE ZUX;Lo;0;L;;;;;N;;;;;
+A2A4;YI SYLLABLE ZU;Lo;0;L;;;;;N;;;;;
+A2A5;YI SYLLABLE ZUP;Lo;0;L;;;;;N;;;;;
+A2A6;YI SYLLABLE ZURX;Lo;0;L;;;;;N;;;;;
+A2A7;YI SYLLABLE ZUR;Lo;0;L;;;;;N;;;;;
+A2A8;YI SYLLABLE ZYT;Lo;0;L;;;;;N;;;;;
+A2A9;YI SYLLABLE ZYX;Lo;0;L;;;;;N;;;;;
+A2AA;YI SYLLABLE ZY;Lo;0;L;;;;;N;;;;;
+A2AB;YI SYLLABLE ZYP;Lo;0;L;;;;;N;;;;;
+A2AC;YI SYLLABLE ZYRX;Lo;0;L;;;;;N;;;;;
+A2AD;YI SYLLABLE ZYR;Lo;0;L;;;;;N;;;;;
+A2AE;YI SYLLABLE CIT;Lo;0;L;;;;;N;;;;;
+A2AF;YI SYLLABLE CIX;Lo;0;L;;;;;N;;;;;
+A2B0;YI SYLLABLE CI;Lo;0;L;;;;;N;;;;;
+A2B1;YI SYLLABLE CIP;Lo;0;L;;;;;N;;;;;
+A2B2;YI SYLLABLE CIET;Lo;0;L;;;;;N;;;;;
+A2B3;YI SYLLABLE CIEX;Lo;0;L;;;;;N;;;;;
+A2B4;YI SYLLABLE CIE;Lo;0;L;;;;;N;;;;;
+A2B5;YI SYLLABLE CIEP;Lo;0;L;;;;;N;;;;;
+A2B6;YI SYLLABLE CAT;Lo;0;L;;;;;N;;;;;
+A2B7;YI SYLLABLE CAX;Lo;0;L;;;;;N;;;;;
+A2B8;YI SYLLABLE CA;Lo;0;L;;;;;N;;;;;
+A2B9;YI SYLLABLE CAP;Lo;0;L;;;;;N;;;;;
+A2BA;YI SYLLABLE CUOX;Lo;0;L;;;;;N;;;;;
+A2BB;YI SYLLABLE CUO;Lo;0;L;;;;;N;;;;;
+A2BC;YI SYLLABLE CUOP;Lo;0;L;;;;;N;;;;;
+A2BD;YI SYLLABLE COT;Lo;0;L;;;;;N;;;;;
+A2BE;YI SYLLABLE COX;Lo;0;L;;;;;N;;;;;
+A2BF;YI SYLLABLE CO;Lo;0;L;;;;;N;;;;;
+A2C0;YI SYLLABLE COP;Lo;0;L;;;;;N;;;;;
+A2C1;YI SYLLABLE CEX;Lo;0;L;;;;;N;;;;;
+A2C2;YI SYLLABLE CE;Lo;0;L;;;;;N;;;;;
+A2C3;YI SYLLABLE CEP;Lo;0;L;;;;;N;;;;;
+A2C4;YI SYLLABLE CUT;Lo;0;L;;;;;N;;;;;
+A2C5;YI SYLLABLE CUX;Lo;0;L;;;;;N;;;;;
+A2C6;YI SYLLABLE CU;Lo;0;L;;;;;N;;;;;
+A2C7;YI SYLLABLE CUP;Lo;0;L;;;;;N;;;;;
+A2C8;YI SYLLABLE CURX;Lo;0;L;;;;;N;;;;;
+A2C9;YI SYLLABLE CUR;Lo;0;L;;;;;N;;;;;
+A2CA;YI SYLLABLE CYT;Lo;0;L;;;;;N;;;;;
+A2CB;YI SYLLABLE CYX;Lo;0;L;;;;;N;;;;;
+A2CC;YI SYLLABLE CY;Lo;0;L;;;;;N;;;;;
+A2CD;YI SYLLABLE CYP;Lo;0;L;;;;;N;;;;;
+A2CE;YI SYLLABLE CYRX;Lo;0;L;;;;;N;;;;;
+A2CF;YI SYLLABLE CYR;Lo;0;L;;;;;N;;;;;
+A2D0;YI SYLLABLE ZZIT;Lo;0;L;;;;;N;;;;;
+A2D1;YI SYLLABLE ZZIX;Lo;0;L;;;;;N;;;;;
+A2D2;YI SYLLABLE ZZI;Lo;0;L;;;;;N;;;;;
+A2D3;YI SYLLABLE ZZIP;Lo;0;L;;;;;N;;;;;
+A2D4;YI SYLLABLE ZZIET;Lo;0;L;;;;;N;;;;;
+A2D5;YI SYLLABLE ZZIEX;Lo;0;L;;;;;N;;;;;
+A2D6;YI SYLLABLE ZZIE;Lo;0;L;;;;;N;;;;;
+A2D7;YI SYLLABLE ZZIEP;Lo;0;L;;;;;N;;;;;
+A2D8;YI SYLLABLE ZZAT;Lo;0;L;;;;;N;;;;;
+A2D9;YI SYLLABLE ZZAX;Lo;0;L;;;;;N;;;;;
+A2DA;YI SYLLABLE ZZA;Lo;0;L;;;;;N;;;;;
+A2DB;YI SYLLABLE ZZAP;Lo;0;L;;;;;N;;;;;
+A2DC;YI SYLLABLE ZZOX;Lo;0;L;;;;;N;;;;;
+A2DD;YI SYLLABLE ZZO;Lo;0;L;;;;;N;;;;;
+A2DE;YI SYLLABLE ZZOP;Lo;0;L;;;;;N;;;;;
+A2DF;YI SYLLABLE ZZEX;Lo;0;L;;;;;N;;;;;
+A2E0;YI SYLLABLE ZZE;Lo;0;L;;;;;N;;;;;
+A2E1;YI SYLLABLE ZZEP;Lo;0;L;;;;;N;;;;;
+A2E2;YI SYLLABLE ZZUX;Lo;0;L;;;;;N;;;;;
+A2E3;YI SYLLABLE ZZU;Lo;0;L;;;;;N;;;;;
+A2E4;YI SYLLABLE ZZUP;Lo;0;L;;;;;N;;;;;
+A2E5;YI SYLLABLE ZZURX;Lo;0;L;;;;;N;;;;;
+A2E6;YI SYLLABLE ZZUR;Lo;0;L;;;;;N;;;;;
+A2E7;YI SYLLABLE ZZYT;Lo;0;L;;;;;N;;;;;
+A2E8;YI SYLLABLE ZZYX;Lo;0;L;;;;;N;;;;;
+A2E9;YI SYLLABLE ZZY;Lo;0;L;;;;;N;;;;;
+A2EA;YI SYLLABLE ZZYP;Lo;0;L;;;;;N;;;;;
+A2EB;YI SYLLABLE ZZYRX;Lo;0;L;;;;;N;;;;;
+A2EC;YI SYLLABLE ZZYR;Lo;0;L;;;;;N;;;;;
+A2ED;YI SYLLABLE NZIT;Lo;0;L;;;;;N;;;;;
+A2EE;YI SYLLABLE NZIX;Lo;0;L;;;;;N;;;;;
+A2EF;YI SYLLABLE NZI;Lo;0;L;;;;;N;;;;;
+A2F0;YI SYLLABLE NZIP;Lo;0;L;;;;;N;;;;;
+A2F1;YI SYLLABLE NZIEX;Lo;0;L;;;;;N;;;;;
+A2F2;YI SYLLABLE NZIE;Lo;0;L;;;;;N;;;;;
+A2F3;YI SYLLABLE NZIEP;Lo;0;L;;;;;N;;;;;
+A2F4;YI SYLLABLE NZAT;Lo;0;L;;;;;N;;;;;
+A2F5;YI SYLLABLE NZAX;Lo;0;L;;;;;N;;;;;
+A2F6;YI SYLLABLE NZA;Lo;0;L;;;;;N;;;;;
+A2F7;YI SYLLABLE NZAP;Lo;0;L;;;;;N;;;;;
+A2F8;YI SYLLABLE NZUOX;Lo;0;L;;;;;N;;;;;
+A2F9;YI SYLLABLE NZUO;Lo;0;L;;;;;N;;;;;
+A2FA;YI SYLLABLE NZOX;Lo;0;L;;;;;N;;;;;
+A2FB;YI SYLLABLE NZOP;Lo;0;L;;;;;N;;;;;
+A2FC;YI SYLLABLE NZEX;Lo;0;L;;;;;N;;;;;
+A2FD;YI SYLLABLE NZE;Lo;0;L;;;;;N;;;;;
+A2FE;YI SYLLABLE NZUX;Lo;0;L;;;;;N;;;;;
+A2FF;YI SYLLABLE NZU;Lo;0;L;;;;;N;;;;;
+A300;YI SYLLABLE NZUP;Lo;0;L;;;;;N;;;;;
+A301;YI SYLLABLE NZURX;Lo;0;L;;;;;N;;;;;
+A302;YI SYLLABLE NZUR;Lo;0;L;;;;;N;;;;;
+A303;YI SYLLABLE NZYT;Lo;0;L;;;;;N;;;;;
+A304;YI SYLLABLE NZYX;Lo;0;L;;;;;N;;;;;
+A305;YI SYLLABLE NZY;Lo;0;L;;;;;N;;;;;
+A306;YI SYLLABLE NZYP;Lo;0;L;;;;;N;;;;;
+A307;YI SYLLABLE NZYRX;Lo;0;L;;;;;N;;;;;
+A308;YI SYLLABLE NZYR;Lo;0;L;;;;;N;;;;;
+A309;YI SYLLABLE SIT;Lo;0;L;;;;;N;;;;;
+A30A;YI SYLLABLE SIX;Lo;0;L;;;;;N;;;;;
+A30B;YI SYLLABLE SI;Lo;0;L;;;;;N;;;;;
+A30C;YI SYLLABLE SIP;Lo;0;L;;;;;N;;;;;
+A30D;YI SYLLABLE SIEX;Lo;0;L;;;;;N;;;;;
+A30E;YI SYLLABLE SIE;Lo;0;L;;;;;N;;;;;
+A30F;YI SYLLABLE SIEP;Lo;0;L;;;;;N;;;;;
+A310;YI SYLLABLE SAT;Lo;0;L;;;;;N;;;;;
+A311;YI SYLLABLE SAX;Lo;0;L;;;;;N;;;;;
+A312;YI SYLLABLE SA;Lo;0;L;;;;;N;;;;;
+A313;YI SYLLABLE SAP;Lo;0;L;;;;;N;;;;;
+A314;YI SYLLABLE SUOX;Lo;0;L;;;;;N;;;;;
+A315;YI SYLLABLE SUO;Lo;0;L;;;;;N;;;;;
+A316;YI SYLLABLE SUOP;Lo;0;L;;;;;N;;;;;
+A317;YI SYLLABLE SOT;Lo;0;L;;;;;N;;;;;
+A318;YI SYLLABLE SOX;Lo;0;L;;;;;N;;;;;
+A319;YI SYLLABLE SO;Lo;0;L;;;;;N;;;;;
+A31A;YI SYLLABLE SOP;Lo;0;L;;;;;N;;;;;
+A31B;YI SYLLABLE SEX;Lo;0;L;;;;;N;;;;;
+A31C;YI SYLLABLE SE;Lo;0;L;;;;;N;;;;;
+A31D;YI SYLLABLE SEP;Lo;0;L;;;;;N;;;;;
+A31E;YI SYLLABLE SUT;Lo;0;L;;;;;N;;;;;
+A31F;YI SYLLABLE SUX;Lo;0;L;;;;;N;;;;;
+A320;YI SYLLABLE SU;Lo;0;L;;;;;N;;;;;
+A321;YI SYLLABLE SUP;Lo;0;L;;;;;N;;;;;
+A322;YI SYLLABLE SURX;Lo;0;L;;;;;N;;;;;
+A323;YI SYLLABLE SUR;Lo;0;L;;;;;N;;;;;
+A324;YI SYLLABLE SYT;Lo;0;L;;;;;N;;;;;
+A325;YI SYLLABLE SYX;Lo;0;L;;;;;N;;;;;
+A326;YI SYLLABLE SY;Lo;0;L;;;;;N;;;;;
+A327;YI SYLLABLE SYP;Lo;0;L;;;;;N;;;;;
+A328;YI SYLLABLE SYRX;Lo;0;L;;;;;N;;;;;
+A329;YI SYLLABLE SYR;Lo;0;L;;;;;N;;;;;
+A32A;YI SYLLABLE SSIT;Lo;0;L;;;;;N;;;;;
+A32B;YI SYLLABLE SSIX;Lo;0;L;;;;;N;;;;;
+A32C;YI SYLLABLE SSI;Lo;0;L;;;;;N;;;;;
+A32D;YI SYLLABLE SSIP;Lo;0;L;;;;;N;;;;;
+A32E;YI SYLLABLE SSIEX;Lo;0;L;;;;;N;;;;;
+A32F;YI SYLLABLE SSIE;Lo;0;L;;;;;N;;;;;
+A330;YI SYLLABLE SSIEP;Lo;0;L;;;;;N;;;;;
+A331;YI SYLLABLE SSAT;Lo;0;L;;;;;N;;;;;
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+A335;YI SYLLABLE SSOT;Lo;0;L;;;;;N;;;;;
+A336;YI SYLLABLE SSOX;Lo;0;L;;;;;N;;;;;
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+A338;YI SYLLABLE SSOP;Lo;0;L;;;;;N;;;;;
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+A33D;YI SYLLABLE SSUX;Lo;0;L;;;;;N;;;;;
+A33E;YI SYLLABLE SSU;Lo;0;L;;;;;N;;;;;
+A33F;YI SYLLABLE SSUP;Lo;0;L;;;;;N;;;;;
+A340;YI SYLLABLE SSYT;Lo;0;L;;;;;N;;;;;
+A341;YI SYLLABLE SSYX;Lo;0;L;;;;;N;;;;;
+A342;YI SYLLABLE SSY;Lo;0;L;;;;;N;;;;;
+A343;YI SYLLABLE SSYP;Lo;0;L;;;;;N;;;;;
+A344;YI SYLLABLE SSYRX;Lo;0;L;;;;;N;;;;;
+A345;YI SYLLABLE SSYR;Lo;0;L;;;;;N;;;;;
+A346;YI SYLLABLE ZHAT;Lo;0;L;;;;;N;;;;;
+A347;YI SYLLABLE ZHAX;Lo;0;L;;;;;N;;;;;
+A348;YI SYLLABLE ZHA;Lo;0;L;;;;;N;;;;;
+A349;YI SYLLABLE ZHAP;Lo;0;L;;;;;N;;;;;
+A34A;YI SYLLABLE ZHUOX;Lo;0;L;;;;;N;;;;;
+A34B;YI SYLLABLE ZHUO;Lo;0;L;;;;;N;;;;;
+A34C;YI SYLLABLE ZHUOP;Lo;0;L;;;;;N;;;;;
+A34D;YI SYLLABLE ZHOT;Lo;0;L;;;;;N;;;;;
+A34E;YI SYLLABLE ZHOX;Lo;0;L;;;;;N;;;;;
+A34F;YI SYLLABLE ZHO;Lo;0;L;;;;;N;;;;;
+A350;YI SYLLABLE ZHOP;Lo;0;L;;;;;N;;;;;
+A351;YI SYLLABLE ZHET;Lo;0;L;;;;;N;;;;;
+A352;YI SYLLABLE ZHEX;Lo;0;L;;;;;N;;;;;
+A353;YI SYLLABLE ZHE;Lo;0;L;;;;;N;;;;;
+A354;YI SYLLABLE ZHEP;Lo;0;L;;;;;N;;;;;
+A355;YI SYLLABLE ZHUT;Lo;0;L;;;;;N;;;;;
+A356;YI SYLLABLE ZHUX;Lo;0;L;;;;;N;;;;;
+A357;YI SYLLABLE ZHU;Lo;0;L;;;;;N;;;;;
+A358;YI SYLLABLE ZHUP;Lo;0;L;;;;;N;;;;;
+A359;YI SYLLABLE ZHURX;Lo;0;L;;;;;N;;;;;
+A35A;YI SYLLABLE ZHUR;Lo;0;L;;;;;N;;;;;
+A35B;YI SYLLABLE ZHYT;Lo;0;L;;;;;N;;;;;
+A35C;YI SYLLABLE ZHYX;Lo;0;L;;;;;N;;;;;
+A35D;YI SYLLABLE ZHY;Lo;0;L;;;;;N;;;;;
+A35E;YI SYLLABLE ZHYP;Lo;0;L;;;;;N;;;;;
+A35F;YI SYLLABLE ZHYRX;Lo;0;L;;;;;N;;;;;
+A360;YI SYLLABLE ZHYR;Lo;0;L;;;;;N;;;;;
+A361;YI SYLLABLE CHAT;Lo;0;L;;;;;N;;;;;
+A362;YI SYLLABLE CHAX;Lo;0;L;;;;;N;;;;;
+A363;YI SYLLABLE CHA;Lo;0;L;;;;;N;;;;;
+A364;YI SYLLABLE CHAP;Lo;0;L;;;;;N;;;;;
+A365;YI SYLLABLE CHUOT;Lo;0;L;;;;;N;;;;;
+A366;YI SYLLABLE CHUOX;Lo;0;L;;;;;N;;;;;
+A367;YI SYLLABLE CHUO;Lo;0;L;;;;;N;;;;;
+A368;YI SYLLABLE CHUOP;Lo;0;L;;;;;N;;;;;
+A369;YI SYLLABLE CHOT;Lo;0;L;;;;;N;;;;;
+A36A;YI SYLLABLE CHOX;Lo;0;L;;;;;N;;;;;
+A36B;YI SYLLABLE CHO;Lo;0;L;;;;;N;;;;;
+A36C;YI SYLLABLE CHOP;Lo;0;L;;;;;N;;;;;
+A36D;YI SYLLABLE CHET;Lo;0;L;;;;;N;;;;;
+A36E;YI SYLLABLE CHEX;Lo;0;L;;;;;N;;;;;
+A36F;YI SYLLABLE CHE;Lo;0;L;;;;;N;;;;;
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+A371;YI SYLLABLE CHUX;Lo;0;L;;;;;N;;;;;
+A372;YI SYLLABLE CHU;Lo;0;L;;;;;N;;;;;
+A373;YI SYLLABLE CHUP;Lo;0;L;;;;;N;;;;;
+A374;YI SYLLABLE CHURX;Lo;0;L;;;;;N;;;;;
+A375;YI SYLLABLE CHUR;Lo;0;L;;;;;N;;;;;
+A376;YI SYLLABLE CHYT;Lo;0;L;;;;;N;;;;;
+A377;YI SYLLABLE CHYX;Lo;0;L;;;;;N;;;;;
+A378;YI SYLLABLE CHY;Lo;0;L;;;;;N;;;;;
+A379;YI SYLLABLE CHYP;Lo;0;L;;;;;N;;;;;
+A37A;YI SYLLABLE CHYRX;Lo;0;L;;;;;N;;;;;
+A37B;YI SYLLABLE CHYR;Lo;0;L;;;;;N;;;;;
+A37C;YI SYLLABLE RRAX;Lo;0;L;;;;;N;;;;;
+A37D;YI SYLLABLE RRA;Lo;0;L;;;;;N;;;;;
+A37E;YI SYLLABLE RRUOX;Lo;0;L;;;;;N;;;;;
+A37F;YI SYLLABLE RRUO;Lo;0;L;;;;;N;;;;;
+A380;YI SYLLABLE RROT;Lo;0;L;;;;;N;;;;;
+A381;YI SYLLABLE RROX;Lo;0;L;;;;;N;;;;;
+A382;YI SYLLABLE RRO;Lo;0;L;;;;;N;;;;;
+A383;YI SYLLABLE RROP;Lo;0;L;;;;;N;;;;;
+A384;YI SYLLABLE RRET;Lo;0;L;;;;;N;;;;;
+A385;YI SYLLABLE RREX;Lo;0;L;;;;;N;;;;;
+A386;YI SYLLABLE RRE;Lo;0;L;;;;;N;;;;;
+A387;YI SYLLABLE RREP;Lo;0;L;;;;;N;;;;;
+A388;YI SYLLABLE RRUT;Lo;0;L;;;;;N;;;;;
+A389;YI SYLLABLE RRUX;Lo;0;L;;;;;N;;;;;
+A38A;YI SYLLABLE RRU;Lo;0;L;;;;;N;;;;;
+A38B;YI SYLLABLE RRUP;Lo;0;L;;;;;N;;;;;
+A38C;YI SYLLABLE RRURX;Lo;0;L;;;;;N;;;;;
+A38D;YI SYLLABLE RRUR;Lo;0;L;;;;;N;;;;;
+A38E;YI SYLLABLE RRYT;Lo;0;L;;;;;N;;;;;
+A38F;YI SYLLABLE RRYX;Lo;0;L;;;;;N;;;;;
+A390;YI SYLLABLE RRY;Lo;0;L;;;;;N;;;;;
+A391;YI SYLLABLE RRYP;Lo;0;L;;;;;N;;;;;
+A392;YI SYLLABLE RRYRX;Lo;0;L;;;;;N;;;;;
+A393;YI SYLLABLE RRYR;Lo;0;L;;;;;N;;;;;
+A394;YI SYLLABLE NRAT;Lo;0;L;;;;;N;;;;;
+A395;YI SYLLABLE NRAX;Lo;0;L;;;;;N;;;;;
+A396;YI SYLLABLE NRA;Lo;0;L;;;;;N;;;;;
+A397;YI SYLLABLE NRAP;Lo;0;L;;;;;N;;;;;
+A398;YI SYLLABLE NROX;Lo;0;L;;;;;N;;;;;
+A399;YI SYLLABLE NRO;Lo;0;L;;;;;N;;;;;
+A39A;YI SYLLABLE NROP;Lo;0;L;;;;;N;;;;;
+A39B;YI SYLLABLE NRET;Lo;0;L;;;;;N;;;;;
+A39C;YI SYLLABLE NREX;Lo;0;L;;;;;N;;;;;
+A39D;YI SYLLABLE NRE;Lo;0;L;;;;;N;;;;;
+A39E;YI SYLLABLE NREP;Lo;0;L;;;;;N;;;;;
+A39F;YI SYLLABLE NRUT;Lo;0;L;;;;;N;;;;;
+A3A0;YI SYLLABLE NRUX;Lo;0;L;;;;;N;;;;;
+A3A1;YI SYLLABLE NRU;Lo;0;L;;;;;N;;;;;
+A3A2;YI SYLLABLE NRUP;Lo;0;L;;;;;N;;;;;
+A3A3;YI SYLLABLE NRURX;Lo;0;L;;;;;N;;;;;
+A3A4;YI SYLLABLE NRUR;Lo;0;L;;;;;N;;;;;
+A3A5;YI SYLLABLE NRYT;Lo;0;L;;;;;N;;;;;
+A3A6;YI SYLLABLE NRYX;Lo;0;L;;;;;N;;;;;
+A3A7;YI SYLLABLE NRY;Lo;0;L;;;;;N;;;;;
+A3A8;YI SYLLABLE NRYP;Lo;0;L;;;;;N;;;;;
+A3A9;YI SYLLABLE NRYRX;Lo;0;L;;;;;N;;;;;
+A3AA;YI SYLLABLE NRYR;Lo;0;L;;;;;N;;;;;
+A3AB;YI SYLLABLE SHAT;Lo;0;L;;;;;N;;;;;
+A3AC;YI SYLLABLE SHAX;Lo;0;L;;;;;N;;;;;
+A3AD;YI SYLLABLE SHA;Lo;0;L;;;;;N;;;;;
+A3AE;YI SYLLABLE SHAP;Lo;0;L;;;;;N;;;;;
+A3AF;YI SYLLABLE SHUOX;Lo;0;L;;;;;N;;;;;
+A3B0;YI SYLLABLE SHUO;Lo;0;L;;;;;N;;;;;
+A3B1;YI SYLLABLE SHUOP;Lo;0;L;;;;;N;;;;;
+A3B2;YI SYLLABLE SHOT;Lo;0;L;;;;;N;;;;;
+A3B3;YI SYLLABLE SHOX;Lo;0;L;;;;;N;;;;;
+A3B4;YI SYLLABLE SHO;Lo;0;L;;;;;N;;;;;
+A3B5;YI SYLLABLE SHOP;Lo;0;L;;;;;N;;;;;
+A3B6;YI SYLLABLE SHET;Lo;0;L;;;;;N;;;;;
+A3B7;YI SYLLABLE SHEX;Lo;0;L;;;;;N;;;;;
+A3B8;YI SYLLABLE SHE;Lo;0;L;;;;;N;;;;;
+A3B9;YI SYLLABLE SHEP;Lo;0;L;;;;;N;;;;;
+A3BA;YI SYLLABLE SHUT;Lo;0;L;;;;;N;;;;;
+A3BB;YI SYLLABLE SHUX;Lo;0;L;;;;;N;;;;;
+A3BC;YI SYLLABLE SHU;Lo;0;L;;;;;N;;;;;
+A3BD;YI SYLLABLE SHUP;Lo;0;L;;;;;N;;;;;
+A3BE;YI SYLLABLE SHURX;Lo;0;L;;;;;N;;;;;
+A3BF;YI SYLLABLE SHUR;Lo;0;L;;;;;N;;;;;
+A3C0;YI SYLLABLE SHYT;Lo;0;L;;;;;N;;;;;
+A3C1;YI SYLLABLE SHYX;Lo;0;L;;;;;N;;;;;
+A3C2;YI SYLLABLE SHY;Lo;0;L;;;;;N;;;;;
+A3C3;YI SYLLABLE SHYP;Lo;0;L;;;;;N;;;;;
+A3C4;YI SYLLABLE SHYRX;Lo;0;L;;;;;N;;;;;
+A3C5;YI SYLLABLE SHYR;Lo;0;L;;;;;N;;;;;
+A3C6;YI SYLLABLE RAT;Lo;0;L;;;;;N;;;;;
+A3C7;YI SYLLABLE RAX;Lo;0;L;;;;;N;;;;;
+A3C8;YI SYLLABLE RA;Lo;0;L;;;;;N;;;;;
+A3C9;YI SYLLABLE RAP;Lo;0;L;;;;;N;;;;;
+A3CA;YI SYLLABLE RUOX;Lo;0;L;;;;;N;;;;;
+A3CB;YI SYLLABLE RUO;Lo;0;L;;;;;N;;;;;
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+A3CD;YI SYLLABLE ROT;Lo;0;L;;;;;N;;;;;
+A3CE;YI SYLLABLE ROX;Lo;0;L;;;;;N;;;;;
+A3CF;YI SYLLABLE RO;Lo;0;L;;;;;N;;;;;
+A3D0;YI SYLLABLE ROP;Lo;0;L;;;;;N;;;;;
+A3D1;YI SYLLABLE REX;Lo;0;L;;;;;N;;;;;
+A3D2;YI SYLLABLE RE;Lo;0;L;;;;;N;;;;;
+A3D3;YI SYLLABLE REP;Lo;0;L;;;;;N;;;;;
+A3D4;YI SYLLABLE RUT;Lo;0;L;;;;;N;;;;;
+A3D5;YI SYLLABLE RUX;Lo;0;L;;;;;N;;;;;
+A3D6;YI SYLLABLE RU;Lo;0;L;;;;;N;;;;;
+A3D7;YI SYLLABLE RUP;Lo;0;L;;;;;N;;;;;
+A3D8;YI SYLLABLE RURX;Lo;0;L;;;;;N;;;;;
+A3D9;YI SYLLABLE RUR;Lo;0;L;;;;;N;;;;;
+A3DA;YI SYLLABLE RYT;Lo;0;L;;;;;N;;;;;
+A3DB;YI SYLLABLE RYX;Lo;0;L;;;;;N;;;;;
+A3DC;YI SYLLABLE RY;Lo;0;L;;;;;N;;;;;
+A3DD;YI SYLLABLE RYP;Lo;0;L;;;;;N;;;;;
+A3DE;YI SYLLABLE RYRX;Lo;0;L;;;;;N;;;;;
+A3DF;YI SYLLABLE RYR;Lo;0;L;;;;;N;;;;;
+A3E0;YI SYLLABLE JIT;Lo;0;L;;;;;N;;;;;
+A3E1;YI SYLLABLE JIX;Lo;0;L;;;;;N;;;;;
+A3E2;YI SYLLABLE JI;Lo;0;L;;;;;N;;;;;
+A3E3;YI SYLLABLE JIP;Lo;0;L;;;;;N;;;;;
+A3E4;YI SYLLABLE JIET;Lo;0;L;;;;;N;;;;;
+A3E5;YI SYLLABLE JIEX;Lo;0;L;;;;;N;;;;;
+A3E6;YI SYLLABLE JIE;Lo;0;L;;;;;N;;;;;
+A3E7;YI SYLLABLE JIEP;Lo;0;L;;;;;N;;;;;
+A3E8;YI SYLLABLE JUOT;Lo;0;L;;;;;N;;;;;
+A3E9;YI SYLLABLE JUOX;Lo;0;L;;;;;N;;;;;
+A3EA;YI SYLLABLE JUO;Lo;0;L;;;;;N;;;;;
+A3EB;YI SYLLABLE JUOP;Lo;0;L;;;;;N;;;;;
+A3EC;YI SYLLABLE JOT;Lo;0;L;;;;;N;;;;;
+A3ED;YI SYLLABLE JOX;Lo;0;L;;;;;N;;;;;
+A3EE;YI SYLLABLE JO;Lo;0;L;;;;;N;;;;;
+A3EF;YI SYLLABLE JOP;Lo;0;L;;;;;N;;;;;
+A3F0;YI SYLLABLE JUT;Lo;0;L;;;;;N;;;;;
+A3F1;YI SYLLABLE JUX;Lo;0;L;;;;;N;;;;;
+A3F2;YI SYLLABLE JU;Lo;0;L;;;;;N;;;;;
+A3F3;YI SYLLABLE JUP;Lo;0;L;;;;;N;;;;;
+A3F4;YI SYLLABLE JURX;Lo;0;L;;;;;N;;;;;
+A3F5;YI SYLLABLE JUR;Lo;0;L;;;;;N;;;;;
+A3F6;YI SYLLABLE JYT;Lo;0;L;;;;;N;;;;;
+A3F7;YI SYLLABLE JYX;Lo;0;L;;;;;N;;;;;
+A3F8;YI SYLLABLE JY;Lo;0;L;;;;;N;;;;;
+A3F9;YI SYLLABLE JYP;Lo;0;L;;;;;N;;;;;
+A3FA;YI SYLLABLE JYRX;Lo;0;L;;;;;N;;;;;
+A3FB;YI SYLLABLE JYR;Lo;0;L;;;;;N;;;;;
+A3FC;YI SYLLABLE QIT;Lo;0;L;;;;;N;;;;;
+A3FD;YI SYLLABLE QIX;Lo;0;L;;;;;N;;;;;
+A3FE;YI SYLLABLE QI;Lo;0;L;;;;;N;;;;;
+A3FF;YI SYLLABLE QIP;Lo;0;L;;;;;N;;;;;
+A400;YI SYLLABLE QIET;Lo;0;L;;;;;N;;;;;
+A401;YI SYLLABLE QIEX;Lo;0;L;;;;;N;;;;;
+A402;YI SYLLABLE QIE;Lo;0;L;;;;;N;;;;;
+A403;YI SYLLABLE QIEP;Lo;0;L;;;;;N;;;;;
+A404;YI SYLLABLE QUOT;Lo;0;L;;;;;N;;;;;
+A405;YI SYLLABLE QUOX;Lo;0;L;;;;;N;;;;;
+A406;YI SYLLABLE QUO;Lo;0;L;;;;;N;;;;;
+A407;YI SYLLABLE QUOP;Lo;0;L;;;;;N;;;;;
+A408;YI SYLLABLE QOT;Lo;0;L;;;;;N;;;;;
+A409;YI SYLLABLE QOX;Lo;0;L;;;;;N;;;;;
+A40A;YI SYLLABLE QO;Lo;0;L;;;;;N;;;;;
+A40B;YI SYLLABLE QOP;Lo;0;L;;;;;N;;;;;
+A40C;YI SYLLABLE QUT;Lo;0;L;;;;;N;;;;;
+A40D;YI SYLLABLE QUX;Lo;0;L;;;;;N;;;;;
+A40E;YI SYLLABLE QU;Lo;0;L;;;;;N;;;;;
+A40F;YI SYLLABLE QUP;Lo;0;L;;;;;N;;;;;
+A410;YI SYLLABLE QURX;Lo;0;L;;;;;N;;;;;
+A411;YI SYLLABLE QUR;Lo;0;L;;;;;N;;;;;
+A412;YI SYLLABLE QYT;Lo;0;L;;;;;N;;;;;
+A413;YI SYLLABLE QYX;Lo;0;L;;;;;N;;;;;
+A414;YI SYLLABLE QY;Lo;0;L;;;;;N;;;;;
+A415;YI SYLLABLE QYP;Lo;0;L;;;;;N;;;;;
+A416;YI SYLLABLE QYRX;Lo;0;L;;;;;N;;;;;
+A417;YI SYLLABLE QYR;Lo;0;L;;;;;N;;;;;
+A418;YI SYLLABLE JJIT;Lo;0;L;;;;;N;;;;;
+A419;YI SYLLABLE JJIX;Lo;0;L;;;;;N;;;;;
+A41A;YI SYLLABLE JJI;Lo;0;L;;;;;N;;;;;
+A41B;YI SYLLABLE JJIP;Lo;0;L;;;;;N;;;;;
+A41C;YI SYLLABLE JJIET;Lo;0;L;;;;;N;;;;;
+A41D;YI SYLLABLE JJIEX;Lo;0;L;;;;;N;;;;;
+A41E;YI SYLLABLE JJIE;Lo;0;L;;;;;N;;;;;
+A41F;YI SYLLABLE JJIEP;Lo;0;L;;;;;N;;;;;
+A420;YI SYLLABLE JJUOX;Lo;0;L;;;;;N;;;;;
+A421;YI SYLLABLE JJUO;Lo;0;L;;;;;N;;;;;
+A422;YI SYLLABLE JJUOP;Lo;0;L;;;;;N;;;;;
+A423;YI SYLLABLE JJOT;Lo;0;L;;;;;N;;;;;
+A424;YI SYLLABLE JJOX;Lo;0;L;;;;;N;;;;;
+A425;YI SYLLABLE JJO;Lo;0;L;;;;;N;;;;;
+A426;YI SYLLABLE JJOP;Lo;0;L;;;;;N;;;;;
+A427;YI SYLLABLE JJUT;Lo;0;L;;;;;N;;;;;
+A428;YI SYLLABLE JJUX;Lo;0;L;;;;;N;;;;;
+A429;YI SYLLABLE JJU;Lo;0;L;;;;;N;;;;;
+A42A;YI SYLLABLE JJUP;Lo;0;L;;;;;N;;;;;
+A42B;YI SYLLABLE JJURX;Lo;0;L;;;;;N;;;;;
+A42C;YI SYLLABLE JJUR;Lo;0;L;;;;;N;;;;;
+A42D;YI SYLLABLE JJYT;Lo;0;L;;;;;N;;;;;
+A42E;YI SYLLABLE JJYX;Lo;0;L;;;;;N;;;;;
+A42F;YI SYLLABLE JJY;Lo;0;L;;;;;N;;;;;
+A430;YI SYLLABLE JJYP;Lo;0;L;;;;;N;;;;;
+A431;YI SYLLABLE NJIT;Lo;0;L;;;;;N;;;;;
+A432;YI SYLLABLE NJIX;Lo;0;L;;;;;N;;;;;
+A433;YI SYLLABLE NJI;Lo;0;L;;;;;N;;;;;
+A434;YI SYLLABLE NJIP;Lo;0;L;;;;;N;;;;;
+A435;YI SYLLABLE NJIET;Lo;0;L;;;;;N;;;;;
+A436;YI SYLLABLE NJIEX;Lo;0;L;;;;;N;;;;;
+A437;YI SYLLABLE NJIE;Lo;0;L;;;;;N;;;;;
+A438;YI SYLLABLE NJIEP;Lo;0;L;;;;;N;;;;;
+A439;YI SYLLABLE NJUOX;Lo;0;L;;;;;N;;;;;
+A43A;YI SYLLABLE NJUO;Lo;0;L;;;;;N;;;;;
+A43B;YI SYLLABLE NJOT;Lo;0;L;;;;;N;;;;;
+A43C;YI SYLLABLE NJOX;Lo;0;L;;;;;N;;;;;
+A43D;YI SYLLABLE NJO;Lo;0;L;;;;;N;;;;;
+A43E;YI SYLLABLE NJOP;Lo;0;L;;;;;N;;;;;
+A43F;YI SYLLABLE NJUX;Lo;0;L;;;;;N;;;;;
+A440;YI SYLLABLE NJU;Lo;0;L;;;;;N;;;;;
+A441;YI SYLLABLE NJUP;Lo;0;L;;;;;N;;;;;
+A442;YI SYLLABLE NJURX;Lo;0;L;;;;;N;;;;;
+A443;YI SYLLABLE NJUR;Lo;0;L;;;;;N;;;;;
+A444;YI SYLLABLE NJYT;Lo;0;L;;;;;N;;;;;
+A445;YI SYLLABLE NJYX;Lo;0;L;;;;;N;;;;;
+A446;YI SYLLABLE NJY;Lo;0;L;;;;;N;;;;;
+A447;YI SYLLABLE NJYP;Lo;0;L;;;;;N;;;;;
+A448;YI SYLLABLE NJYRX;Lo;0;L;;;;;N;;;;;
+A449;YI SYLLABLE NJYR;Lo;0;L;;;;;N;;;;;
+A44A;YI SYLLABLE NYIT;Lo;0;L;;;;;N;;;;;
+A44B;YI SYLLABLE NYIX;Lo;0;L;;;;;N;;;;;
+A44C;YI SYLLABLE NYI;Lo;0;L;;;;;N;;;;;
+A44D;YI SYLLABLE NYIP;Lo;0;L;;;;;N;;;;;
+A44E;YI SYLLABLE NYIET;Lo;0;L;;;;;N;;;;;
+A44F;YI SYLLABLE NYIEX;Lo;0;L;;;;;N;;;;;
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+A451;YI SYLLABLE NYIEP;Lo;0;L;;;;;N;;;;;
+A452;YI SYLLABLE NYUOX;Lo;0;L;;;;;N;;;;;
+A453;YI SYLLABLE NYUO;Lo;0;L;;;;;N;;;;;
+A454;YI SYLLABLE NYUOP;Lo;0;L;;;;;N;;;;;
+A455;YI SYLLABLE NYOT;Lo;0;L;;;;;N;;;;;
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+A457;YI SYLLABLE NYO;Lo;0;L;;;;;N;;;;;
+A458;YI SYLLABLE NYOP;Lo;0;L;;;;;N;;;;;
+A459;YI SYLLABLE NYUT;Lo;0;L;;;;;N;;;;;
+A45A;YI SYLLABLE NYUX;Lo;0;L;;;;;N;;;;;
+A45B;YI SYLLABLE NYU;Lo;0;L;;;;;N;;;;;
+A45C;YI SYLLABLE NYUP;Lo;0;L;;;;;N;;;;;
+A45D;YI SYLLABLE XIT;Lo;0;L;;;;;N;;;;;
+A45E;YI SYLLABLE XIX;Lo;0;L;;;;;N;;;;;
+A45F;YI SYLLABLE XI;Lo;0;L;;;;;N;;;;;
+A460;YI SYLLABLE XIP;Lo;0;L;;;;;N;;;;;
+A461;YI SYLLABLE XIET;Lo;0;L;;;;;N;;;;;
+A462;YI SYLLABLE XIEX;Lo;0;L;;;;;N;;;;;
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+A464;YI SYLLABLE XIEP;Lo;0;L;;;;;N;;;;;
+A465;YI SYLLABLE XUOX;Lo;0;L;;;;;N;;;;;
+A466;YI SYLLABLE XUO;Lo;0;L;;;;;N;;;;;
+A467;YI SYLLABLE XOT;Lo;0;L;;;;;N;;;;;
+A468;YI SYLLABLE XOX;Lo;0;L;;;;;N;;;;;
+A469;YI SYLLABLE XO;Lo;0;L;;;;;N;;;;;
+A46A;YI SYLLABLE XOP;Lo;0;L;;;;;N;;;;;
+A46B;YI SYLLABLE XYT;Lo;0;L;;;;;N;;;;;
+A46C;YI SYLLABLE XYX;Lo;0;L;;;;;N;;;;;
+A46D;YI SYLLABLE XY;Lo;0;L;;;;;N;;;;;
+A46E;YI SYLLABLE XYP;Lo;0;L;;;;;N;;;;;
+A46F;YI SYLLABLE XYRX;Lo;0;L;;;;;N;;;;;
+A470;YI SYLLABLE XYR;Lo;0;L;;;;;N;;;;;
+A471;YI SYLLABLE YIT;Lo;0;L;;;;;N;;;;;
+A472;YI SYLLABLE YIX;Lo;0;L;;;;;N;;;;;
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+A531;VAI SYLLABLE FI;Lo;0;L;;;;;N;;;;;
+A532;VAI SYLLABLE VI;Lo;0;L;;;;;N;;;;;
+A533;VAI SYLLABLE TI;Lo;0;L;;;;;N;;;;;
+A534;VAI SYLLABLE THI;Lo;0;L;;;;;N;;;;;
+A535;VAI SYLLABLE DHI;Lo;0;L;;;;;N;;;;;
+A536;VAI SYLLABLE DHHI;Lo;0;L;;;;;N;;;;;
+A537;VAI SYLLABLE LI;Lo;0;L;;;;;N;;;;;
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+A539;VAI SYLLABLE DI;Lo;0;L;;;;;N;;;;;
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+A545;VAI SYLLABLE GI;Lo;0;L;;;;;N;;;;;
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+A562;VAI SYLLABLE SA;Lo;0;L;;;;;N;;;;;
+A563;VAI SYLLABLE SHA;Lo;0;L;;;;;N;;;;;
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+A56F;VAI SYLLABLE NA;Lo;0;L;;;;;N;;;;;
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+A579;VAI SYLLABLE MBOO;Lo;0;L;;;;;N;;;;;
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+A581;VAI SYLLABLE DHOO;Lo;0;L;;;;;N;;;;;
+A582;VAI SYLLABLE DHHOO;Lo;0;L;;;;;N;;;;;
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+A584;VAI SYLLABLE ROO;Lo;0;L;;;;;N;;;;;
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+A587;VAI SYLLABLE SOO;Lo;0;L;;;;;N;;;;;
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+A589;VAI SYLLABLE ZOO;Lo;0;L;;;;;N;;;;;
+A58A;VAI SYLLABLE ZHOO;Lo;0;L;;;;;N;;;;;
+A58B;VAI SYLLABLE COO;Lo;0;L;;;;;N;;;;;
+A58C;VAI SYLLABLE JOO;Lo;0;L;;;;;N;;;;;
+A58D;VAI SYLLABLE NJOO;Lo;0;L;;;;;N;;;;;
+A58E;VAI SYLLABLE YOO;Lo;0;L;;;;;N;;;;;
+A58F;VAI SYLLABLE KOO;Lo;0;L;;;;;N;;;;;
+A590;VAI SYLLABLE NGGOO;Lo;0;L;;;;;N;;;;;
+A591;VAI SYLLABLE GOO;Lo;0;L;;;;;N;;;;;
+A592;VAI SYLLABLE MOO;Lo;0;L;;;;;N;;;;;
+A593;VAI SYLLABLE NOO;Lo;0;L;;;;;N;;;;;
+A594;VAI SYLLABLE NYOO;Lo;0;L;;;;;N;;;;;
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+A596;VAI SYLLABLE UN;Lo;0;L;;;;;N;;;;;
+A597;VAI SYLLABLE HU;Lo;0;L;;;;;N;;;;;
+A598;VAI SYLLABLE HUN;Lo;0;L;;;;;N;;;;;
+A599;VAI SYLLABLE WU;Lo;0;L;;;;;N;;;;;
+A59A;VAI SYLLABLE WUN;Lo;0;L;;;;;N;;;;;
+A59B;VAI SYLLABLE PU;Lo;0;L;;;;;N;;;;;
+A59C;VAI SYLLABLE BHU;Lo;0;L;;;;;N;;;;;
+A59D;VAI SYLLABLE BU;Lo;0;L;;;;;N;;;;;
+A59E;VAI SYLLABLE MBU;Lo;0;L;;;;;N;;;;;
+A59F;VAI SYLLABLE KPU;Lo;0;L;;;;;N;;;;;
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+A5A3;VAI SYLLABLE VU;Lo;0;L;;;;;N;;;;;
+A5A4;VAI SYLLABLE TU;Lo;0;L;;;;;N;;;;;
+A5A5;VAI SYLLABLE THU;Lo;0;L;;;;;N;;;;;
+A5A6;VAI SYLLABLE DHU;Lo;0;L;;;;;N;;;;;
+A5A7;VAI SYLLABLE DHHU;Lo;0;L;;;;;N;;;;;
+A5A8;VAI SYLLABLE LU;Lo;0;L;;;;;N;;;;;
+A5A9;VAI SYLLABLE RU;Lo;0;L;;;;;N;;;;;
+A5AA;VAI SYLLABLE DU;Lo;0;L;;;;;N;;;;;
+A5AB;VAI SYLLABLE NDU;Lo;0;L;;;;;N;;;;;
+A5AC;VAI SYLLABLE SU;Lo;0;L;;;;;N;;;;;
+A5AD;VAI SYLLABLE SHU;Lo;0;L;;;;;N;;;;;
+A5AE;VAI SYLLABLE ZU;Lo;0;L;;;;;N;;;;;
+A5AF;VAI SYLLABLE ZHU;Lo;0;L;;;;;N;;;;;
+A5B0;VAI SYLLABLE CU;Lo;0;L;;;;;N;;;;;
+A5B1;VAI SYLLABLE JU;Lo;0;L;;;;;N;;;;;
+A5B2;VAI SYLLABLE NJU;Lo;0;L;;;;;N;;;;;
+A5B3;VAI SYLLABLE YU;Lo;0;L;;;;;N;;;;;
+A5B4;VAI SYLLABLE KU;Lo;0;L;;;;;N;;;;;
+A5B5;VAI SYLLABLE NGGU;Lo;0;L;;;;;N;;;;;
+A5B6;VAI SYLLABLE GU;Lo;0;L;;;;;N;;;;;
+A5B7;VAI SYLLABLE MU;Lo;0;L;;;;;N;;;;;
+A5B8;VAI SYLLABLE NU;Lo;0;L;;;;;N;;;;;
+A5B9;VAI SYLLABLE NYU;Lo;0;L;;;;;N;;;;;
+A5BA;VAI SYLLABLE O;Lo;0;L;;;;;N;;;;;
+A5BB;VAI SYLLABLE ON;Lo;0;L;;;;;N;;;;;
+A5BC;VAI SYLLABLE NGON;Lo;0;L;;;;;N;;;;;
+A5BD;VAI SYLLABLE HO;Lo;0;L;;;;;N;;;;;
+A5BE;VAI SYLLABLE HON;Lo;0;L;;;;;N;;;;;
+A5BF;VAI SYLLABLE WO;Lo;0;L;;;;;N;;;;;
+A5C0;VAI SYLLABLE WON;Lo;0;L;;;;;N;;;;;
+A5C1;VAI SYLLABLE PO;Lo;0;L;;;;;N;;;;;
+A5C2;VAI SYLLABLE BHO;Lo;0;L;;;;;N;;;;;
+A5C3;VAI SYLLABLE BO;Lo;0;L;;;;;N;;;;;
+A5C4;VAI SYLLABLE MBO;Lo;0;L;;;;;N;;;;;
+A5C5;VAI SYLLABLE KPO;Lo;0;L;;;;;N;;;;;
+A5C6;VAI SYLLABLE MGBO;Lo;0;L;;;;;N;;;;;
+A5C7;VAI SYLLABLE GBO;Lo;0;L;;;;;N;;;;;
+A5C8;VAI SYLLABLE GBON;Lo;0;L;;;;;N;;;;;
+A5C9;VAI SYLLABLE FO;Lo;0;L;;;;;N;;;;;
+A5CA;VAI SYLLABLE VO;Lo;0;L;;;;;N;;;;;
+A5CB;VAI SYLLABLE TO;Lo;0;L;;;;;N;;;;;
+A5CC;VAI SYLLABLE THO;Lo;0;L;;;;;N;;;;;
+A5CD;VAI SYLLABLE DHO;Lo;0;L;;;;;N;;;;;
+A5CE;VAI SYLLABLE DHHO;Lo;0;L;;;;;N;;;;;
+A5CF;VAI SYLLABLE LO;Lo;0;L;;;;;N;;;;;
+A5D0;VAI SYLLABLE RO;Lo;0;L;;;;;N;;;;;
+A5D1;VAI SYLLABLE DO;Lo;0;L;;;;;N;;;;;
+A5D2;VAI SYLLABLE NDO;Lo;0;L;;;;;N;;;;;
+A5D3;VAI SYLLABLE SO;Lo;0;L;;;;;N;;;;;
+A5D4;VAI SYLLABLE SHO;Lo;0;L;;;;;N;;;;;
+A5D5;VAI SYLLABLE ZO;Lo;0;L;;;;;N;;;;;
+A5D6;VAI SYLLABLE ZHO;Lo;0;L;;;;;N;;;;;
+A5D7;VAI SYLLABLE CO;Lo;0;L;;;;;N;;;;;
+A5D8;VAI SYLLABLE JO;Lo;0;L;;;;;N;;;;;
+A5D9;VAI SYLLABLE NJO;Lo;0;L;;;;;N;;;;;
+A5DA;VAI SYLLABLE YO;Lo;0;L;;;;;N;;;;;
+A5DB;VAI SYLLABLE KO;Lo;0;L;;;;;N;;;;;
+A5DC;VAI SYLLABLE NGGO;Lo;0;L;;;;;N;;;;;
+A5DD;VAI SYLLABLE GO;Lo;0;L;;;;;N;;;;;
+A5DE;VAI SYLLABLE MO;Lo;0;L;;;;;N;;;;;
+A5DF;VAI SYLLABLE NO;Lo;0;L;;;;;N;;;;;
+A5E0;VAI SYLLABLE NYO;Lo;0;L;;;;;N;;;;;
+A5E1;VAI SYLLABLE E;Lo;0;L;;;;;N;;;;;
+A5E2;VAI SYLLABLE EN;Lo;0;L;;;;;N;;;;;
+A5E3;VAI SYLLABLE NGEN;Lo;0;L;;;;;N;;;;;
+A5E4;VAI SYLLABLE HE;Lo;0;L;;;;;N;;;;;
+A5E5;VAI SYLLABLE HEN;Lo;0;L;;;;;N;;;;;
+A5E6;VAI SYLLABLE WE;Lo;0;L;;;;;N;;;;;
+A5E7;VAI SYLLABLE WEN;Lo;0;L;;;;;N;;;;;
+A5E8;VAI SYLLABLE PE;Lo;0;L;;;;;N;;;;;
+A5E9;VAI SYLLABLE BHE;Lo;0;L;;;;;N;;;;;
+A5EA;VAI SYLLABLE BE;Lo;0;L;;;;;N;;;;;
+A5EB;VAI SYLLABLE MBE;Lo;0;L;;;;;N;;;;;
+A5EC;VAI SYLLABLE KPE;Lo;0;L;;;;;N;;;;;
+A5ED;VAI SYLLABLE KPEN;Lo;0;L;;;;;N;;;;;
+A5EE;VAI SYLLABLE MGBE;Lo;0;L;;;;;N;;;;;
+A5EF;VAI SYLLABLE GBE;Lo;0;L;;;;;N;;;;;
+A5F0;VAI SYLLABLE GBEN;Lo;0;L;;;;;N;;;;;
+A5F1;VAI SYLLABLE FE;Lo;0;L;;;;;N;;;;;
+A5F2;VAI SYLLABLE VE;Lo;0;L;;;;;N;;;;;
+A5F3;VAI SYLLABLE TE;Lo;0;L;;;;;N;;;;;
+A5F4;VAI SYLLABLE THE;Lo;0;L;;;;;N;;;;;
+A5F5;VAI SYLLABLE DHE;Lo;0;L;;;;;N;;;;;
+A5F6;VAI SYLLABLE DHHE;Lo;0;L;;;;;N;;;;;
+A5F7;VAI SYLLABLE LE;Lo;0;L;;;;;N;;;;;
+A5F8;VAI SYLLABLE RE;Lo;0;L;;;;;N;;;;;
+A5F9;VAI SYLLABLE DE;Lo;0;L;;;;;N;;;;;
+A5FA;VAI SYLLABLE NDE;Lo;0;L;;;;;N;;;;;
+A5FB;VAI SYLLABLE SE;Lo;0;L;;;;;N;;;;;
+A5FC;VAI SYLLABLE SHE;Lo;0;L;;;;;N;;;;;
+A5FD;VAI SYLLABLE ZE;Lo;0;L;;;;;N;;;;;
+A5FE;VAI SYLLABLE ZHE;Lo;0;L;;;;;N;;;;;
+A5FF;VAI SYLLABLE CE;Lo;0;L;;;;;N;;;;;
+A600;VAI SYLLABLE JE;Lo;0;L;;;;;N;;;;;
+A601;VAI SYLLABLE NJE;Lo;0;L;;;;;N;;;;;
+A602;VAI SYLLABLE YE;Lo;0;L;;;;;N;;;;;
+A603;VAI SYLLABLE KE;Lo;0;L;;;;;N;;;;;
+A604;VAI SYLLABLE NGGE;Lo;0;L;;;;;N;;;;;
+A605;VAI SYLLABLE NGGEN;Lo;0;L;;;;;N;;;;;
+A606;VAI SYLLABLE GE;Lo;0;L;;;;;N;;;;;
+A607;VAI SYLLABLE GEN;Lo;0;L;;;;;N;;;;;
+A608;VAI SYLLABLE ME;Lo;0;L;;;;;N;;;;;
+A609;VAI SYLLABLE NE;Lo;0;L;;;;;N;;;;;
+A60A;VAI SYLLABLE NYE;Lo;0;L;;;;;N;;;;;
+A60B;VAI SYLLABLE NG;Lo;0;L;;;;;N;;;;;
+A60C;VAI SYLLABLE LENGTHENER;Lm;0;L;;;;;N;;;;;
+A60D;VAI COMMA;Po;0;ON;;;;;N;;;;;
+A60E;VAI FULL STOP;Po;0;ON;;;;;N;;;;;
+A60F;VAI QUESTION MARK;Po;0;ON;;;;;N;;;;;
+A610;VAI SYLLABLE NDOLE FA;Lo;0;L;;;;;N;;;;;
+A611;VAI SYLLABLE NDOLE KA;Lo;0;L;;;;;N;;;;;
+A612;VAI SYLLABLE NDOLE SOO;Lo;0;L;;;;;N;;;;;
+A613;VAI SYMBOL FEENG;Lo;0;L;;;;;N;;;;;
+A614;VAI SYMBOL KEENG;Lo;0;L;;;;;N;;;;;
+A615;VAI SYMBOL TING;Lo;0;L;;;;;N;;;;;
+A616;VAI SYMBOL NII;Lo;0;L;;;;;N;;;;;
+A617;VAI SYMBOL BANG;Lo;0;L;;;;;N;;;;;
+A618;VAI SYMBOL FAA;Lo;0;L;;;;;N;;;;;
+A619;VAI SYMBOL TAA;Lo;0;L;;;;;N;;;;;
+A61A;VAI SYMBOL DANG;Lo;0;L;;;;;N;;;;;
+A61B;VAI SYMBOL DOONG;Lo;0;L;;;;;N;;;;;
+A61C;VAI SYMBOL KUNG;Lo;0;L;;;;;N;;;;;
+A61D;VAI SYMBOL TONG;Lo;0;L;;;;;N;;;;;
+A61E;VAI SYMBOL DO-O;Lo;0;L;;;;;N;;;;;
+A61F;VAI SYMBOL JONG;Lo;0;L;;;;;N;;;;;
+A620;VAI DIGIT ZERO;Nd;0;L;;0;0;0;N;;;;;
+A621;VAI DIGIT ONE;Nd;0;L;;1;1;1;N;;;;;
+A622;VAI DIGIT TWO;Nd;0;L;;2;2;2;N;;;;;
+A623;VAI DIGIT THREE;Nd;0;L;;3;3;3;N;;;;;
+A624;VAI DIGIT FOUR;Nd;0;L;;4;4;4;N;;;;;
+A625;VAI DIGIT FIVE;Nd;0;L;;5;5;5;N;;;;;
+A626;VAI DIGIT SIX;Nd;0;L;;6;6;6;N;;;;;
+A627;VAI DIGIT SEVEN;Nd;0;L;;7;7;7;N;;;;;
+A628;VAI DIGIT EIGHT;Nd;0;L;;8;8;8;N;;;;;
+A629;VAI DIGIT NINE;Nd;0;L;;9;9;9;N;;;;;
+A62A;VAI SYLLABLE NDOLE MA;Lo;0;L;;;;;N;;;;;
+A62B;VAI SYLLABLE NDOLE DO;Lo;0;L;;;;;N;;;;;
+A640;CYRILLIC CAPITAL LETTER ZEMLYA;Lu;0;L;;;;;N;;;;A641;
+A641;CYRILLIC SMALL LETTER ZEMLYA;Ll;0;L;;;;;N;;;A640;;A640
+A642;CYRILLIC CAPITAL LETTER DZELO;Lu;0;L;;;;;N;;;;A643;
+A643;CYRILLIC SMALL LETTER DZELO;Ll;0;L;;;;;N;;;A642;;A642
+A644;CYRILLIC CAPITAL LETTER REVERSED DZE;Lu;0;L;;;;;N;;;;A645;
+A645;CYRILLIC SMALL LETTER REVERSED DZE;Ll;0;L;;;;;N;;;A644;;A644
+A646;CYRILLIC CAPITAL LETTER IOTA;Lu;0;L;;;;;N;;;;A647;
+A647;CYRILLIC SMALL LETTER IOTA;Ll;0;L;;;;;N;;;A646;;A646
+A648;CYRILLIC CAPITAL LETTER DJERV;Lu;0;L;;;;;N;;;;A649;
+A649;CYRILLIC SMALL LETTER DJERV;Ll;0;L;;;;;N;;;A648;;A648
+A64A;CYRILLIC CAPITAL LETTER MONOGRAPH UK;Lu;0;L;;;;;N;;;;A64B;
+A64B;CYRILLIC SMALL LETTER MONOGRAPH UK;Ll;0;L;;;;;N;;;A64A;;A64A
+A64C;CYRILLIC CAPITAL LETTER BROAD OMEGA;Lu;0;L;;;;;N;;;;A64D;
+A64D;CYRILLIC SMALL LETTER BROAD OMEGA;Ll;0;L;;;;;N;;;A64C;;A64C
+A64E;CYRILLIC CAPITAL LETTER NEUTRAL YER;Lu;0;L;;;;;N;;;;A64F;
+A64F;CYRILLIC SMALL LETTER NEUTRAL YER;Ll;0;L;;;;;N;;;A64E;;A64E
+A650;CYRILLIC CAPITAL LETTER YERU WITH BACK YER;Lu;0;L;;;;;N;;;;A651;
+A651;CYRILLIC SMALL LETTER YERU WITH BACK YER;Ll;0;L;;;;;N;;;A650;;A650
+A652;CYRILLIC CAPITAL LETTER IOTIFIED YAT;Lu;0;L;;;;;N;;;;A653;
+A653;CYRILLIC SMALL LETTER IOTIFIED YAT;Ll;0;L;;;;;N;;;A652;;A652
+A654;CYRILLIC CAPITAL LETTER REVERSED YU;Lu;0;L;;;;;N;;;;A655;
+A655;CYRILLIC SMALL LETTER REVERSED YU;Ll;0;L;;;;;N;;;A654;;A654
+A656;CYRILLIC CAPITAL LETTER IOTIFIED A;Lu;0;L;;;;;N;;;;A657;
+A657;CYRILLIC SMALL LETTER IOTIFIED A;Ll;0;L;;;;;N;;;A656;;A656
+A658;CYRILLIC CAPITAL LETTER CLOSED LITTLE YUS;Lu;0;L;;;;;N;;;;A659;
+A659;CYRILLIC SMALL LETTER CLOSED LITTLE YUS;Ll;0;L;;;;;N;;;A658;;A658
+A65A;CYRILLIC CAPITAL LETTER BLENDED YUS;Lu;0;L;;;;;N;;;;A65B;
+A65B;CYRILLIC SMALL LETTER BLENDED YUS;Ll;0;L;;;;;N;;;A65A;;A65A
+A65C;CYRILLIC CAPITAL LETTER IOTIFIED CLOSED LITTLE YUS;Lu;0;L;;;;;N;;;;A65D;
+A65D;CYRILLIC SMALL LETTER IOTIFIED CLOSED LITTLE YUS;Ll;0;L;;;;;N;;;A65C;;A65C
+A65E;CYRILLIC CAPITAL LETTER YN;Lu;0;L;;;;;N;;;;A65F;
+A65F;CYRILLIC SMALL LETTER YN;Ll;0;L;;;;;N;;;A65E;;A65E
+A660;CYRILLIC CAPITAL LETTER REVERSED TSE;Lu;0;L;;;;;N;;;;A661;
+A661;CYRILLIC SMALL LETTER REVERSED TSE;Ll;0;L;;;;;N;;;A660;;A660
+A662;CYRILLIC CAPITAL LETTER SOFT DE;Lu;0;L;;;;;N;;;;A663;
+A663;CYRILLIC SMALL LETTER SOFT DE;Ll;0;L;;;;;N;;;A662;;A662
+A664;CYRILLIC CAPITAL LETTER SOFT EL;Lu;0;L;;;;;N;;;;A665;
+A665;CYRILLIC SMALL LETTER SOFT EL;Ll;0;L;;;;;N;;;A664;;A664
+A666;CYRILLIC CAPITAL LETTER SOFT EM;Lu;0;L;;;;;N;;;;A667;
+A667;CYRILLIC SMALL LETTER SOFT EM;Ll;0;L;;;;;N;;;A666;;A666
+A668;CYRILLIC CAPITAL LETTER MONOCULAR O;Lu;0;L;;;;;N;;;;A669;
+A669;CYRILLIC SMALL LETTER MONOCULAR O;Ll;0;L;;;;;N;;;A668;;A668
+A66A;CYRILLIC CAPITAL LETTER BINOCULAR O;Lu;0;L;;;;;N;;;;A66B;
+A66B;CYRILLIC SMALL LETTER BINOCULAR O;Ll;0;L;;;;;N;;;A66A;;A66A
+A66C;CYRILLIC CAPITAL LETTER DOUBLE MONOCULAR O;Lu;0;L;;;;;N;;;;A66D;
+A66D;CYRILLIC SMALL LETTER DOUBLE MONOCULAR O;Ll;0;L;;;;;N;;;A66C;;A66C
+A66E;CYRILLIC LETTER MULTIOCULAR O;Lo;0;L;;;;;N;;;;;
+A66F;COMBINING CYRILLIC VZMET;Mn;230;NSM;;;;;N;;;;;
+A670;COMBINING CYRILLIC TEN MILLIONS SIGN;Me;0;NSM;;;;;N;;;;;
+A671;COMBINING CYRILLIC HUNDRED MILLIONS SIGN;Me;0;NSM;;;;;N;;;;;
+A672;COMBINING CYRILLIC THOUSAND MILLIONS SIGN;Me;0;NSM;;;;;N;;;;;
+A673;SLAVONIC ASTERISK;Po;0;ON;;;;;N;;;;;
+A674;COMBINING CYRILLIC LETTER UKRAINIAN IE;Mn;230;NSM;;;;;N;;;;;
+A675;COMBINING CYRILLIC LETTER I;Mn;230;NSM;;;;;N;;;;;
+A676;COMBINING CYRILLIC LETTER YI;Mn;230;NSM;;;;;N;;;;;
+A677;COMBINING CYRILLIC LETTER U;Mn;230;NSM;;;;;N;;;;;
+A678;COMBINING CYRILLIC LETTER HARD SIGN;Mn;230;NSM;;;;;N;;;;;
+A679;COMBINING CYRILLIC LETTER YERU;Mn;230;NSM;;;;;N;;;;;
+A67A;COMBINING CYRILLIC LETTER SOFT SIGN;Mn;230;NSM;;;;;N;;;;;
+A67B;COMBINING CYRILLIC LETTER OMEGA;Mn;230;NSM;;;;;N;;;;;
+A67C;COMBINING CYRILLIC KAVYKA;Mn;230;NSM;;;;;N;;;;;
+A67D;COMBINING CYRILLIC PAYEROK;Mn;230;NSM;;;;;N;;;;;
+A67E;CYRILLIC KAVYKA;Po;0;ON;;;;;N;;;;;
+A67F;CYRILLIC PAYEROK;Lm;0;ON;;;;;N;;;;;
+A680;CYRILLIC CAPITAL LETTER DWE;Lu;0;L;;;;;N;;;;A681;
+A681;CYRILLIC SMALL LETTER DWE;Ll;0;L;;;;;N;;;A680;;A680
+A682;CYRILLIC CAPITAL LETTER DZWE;Lu;0;L;;;;;N;;;;A683;
+A683;CYRILLIC SMALL LETTER DZWE;Ll;0;L;;;;;N;;;A682;;A682
+A684;CYRILLIC CAPITAL LETTER ZHWE;Lu;0;L;;;;;N;;;;A685;
+A685;CYRILLIC SMALL LETTER ZHWE;Ll;0;L;;;;;N;;;A684;;A684
+A686;CYRILLIC CAPITAL LETTER CCHE;Lu;0;L;;;;;N;;;;A687;
+A687;CYRILLIC SMALL LETTER CCHE;Ll;0;L;;;;;N;;;A686;;A686
+A688;CYRILLIC CAPITAL LETTER DZZE;Lu;0;L;;;;;N;;;;A689;
+A689;CYRILLIC SMALL LETTER DZZE;Ll;0;L;;;;;N;;;A688;;A688
+A68A;CYRILLIC CAPITAL LETTER TE WITH MIDDLE HOOK;Lu;0;L;;;;;N;;;;A68B;
+A68B;CYRILLIC SMALL LETTER TE WITH MIDDLE HOOK;Ll;0;L;;;;;N;;;A68A;;A68A
+A68C;CYRILLIC CAPITAL LETTER TWE;Lu;0;L;;;;;N;;;;A68D;
+A68D;CYRILLIC SMALL LETTER TWE;Ll;0;L;;;;;N;;;A68C;;A68C
+A68E;CYRILLIC CAPITAL LETTER TSWE;Lu;0;L;;;;;N;;;;A68F;
+A68F;CYRILLIC SMALL LETTER TSWE;Ll;0;L;;;;;N;;;A68E;;A68E
+A690;CYRILLIC CAPITAL LETTER TSSE;Lu;0;L;;;;;N;;;;A691;
+A691;CYRILLIC SMALL LETTER TSSE;Ll;0;L;;;;;N;;;A690;;A690
+A692;CYRILLIC CAPITAL LETTER TCHE;Lu;0;L;;;;;N;;;;A693;
+A693;CYRILLIC SMALL LETTER TCHE;Ll;0;L;;;;;N;;;A692;;A692
+A694;CYRILLIC CAPITAL LETTER HWE;Lu;0;L;;;;;N;;;;A695;
+A695;CYRILLIC SMALL LETTER HWE;Ll;0;L;;;;;N;;;A694;;A694
+A696;CYRILLIC CAPITAL LETTER SHWE;Lu;0;L;;;;;N;;;;A697;
+A697;CYRILLIC SMALL LETTER SHWE;Ll;0;L;;;;;N;;;A696;;A696
+A69F;COMBINING CYRILLIC LETTER IOTIFIED E;Mn;230;NSM;;;;;N;;;;;
+A6A0;BAMUM LETTER A;Lo;0;L;;;;;N;;;;;
+A6A1;BAMUM LETTER KA;Lo;0;L;;;;;N;;;;;
+A6A2;BAMUM LETTER U;Lo;0;L;;;;;N;;;;;
+A6A3;BAMUM LETTER KU;Lo;0;L;;;;;N;;;;;
+A6A4;BAMUM LETTER EE;Lo;0;L;;;;;N;;;;;
+A6A5;BAMUM LETTER REE;Lo;0;L;;;;;N;;;;;
+A6A6;BAMUM LETTER TAE;Lo;0;L;;;;;N;;;;;
+A6A7;BAMUM LETTER O;Lo;0;L;;;;;N;;;;;
+A6A8;BAMUM LETTER NYI;Lo;0;L;;;;;N;;;;;
+A6A9;BAMUM LETTER I;Lo;0;L;;;;;N;;;;;
+A6AA;BAMUM LETTER LA;Lo;0;L;;;;;N;;;;;
+A6AB;BAMUM LETTER PA;Lo;0;L;;;;;N;;;;;
+A6AC;BAMUM LETTER RII;Lo;0;L;;;;;N;;;;;
+A6AD;BAMUM LETTER RIEE;Lo;0;L;;;;;N;;;;;
+A6AE;BAMUM LETTER LEEEE;Lo;0;L;;;;;N;;;;;
+A6AF;BAMUM LETTER MEEEE;Lo;0;L;;;;;N;;;;;
+A6B0;BAMUM LETTER TAA;Lo;0;L;;;;;N;;;;;
+A6B1;BAMUM LETTER NDAA;Lo;0;L;;;;;N;;;;;
+A6B2;BAMUM LETTER NJAEM;Lo;0;L;;;;;N;;;;;
+A6B3;BAMUM LETTER M;Lo;0;L;;;;;N;;;;;
+A6B4;BAMUM LETTER SUU;Lo;0;L;;;;;N;;;;;
+A6B5;BAMUM LETTER MU;Lo;0;L;;;;;N;;;;;
+A6B6;BAMUM LETTER SHII;Lo;0;L;;;;;N;;;;;
+A6B7;BAMUM LETTER SI;Lo;0;L;;;;;N;;;;;
+A6B8;BAMUM LETTER SHEUX;Lo;0;L;;;;;N;;;;;
+A6B9;BAMUM LETTER SEUX;Lo;0;L;;;;;N;;;;;
+A6BA;BAMUM LETTER KYEE;Lo;0;L;;;;;N;;;;;
+A6BB;BAMUM LETTER KET;Lo;0;L;;;;;N;;;;;
+A6BC;BAMUM LETTER NUAE;Lo;0;L;;;;;N;;;;;
+A6BD;BAMUM LETTER NU;Lo;0;L;;;;;N;;;;;
+A6BE;BAMUM LETTER NJUAE;Lo;0;L;;;;;N;;;;;
+A6BF;BAMUM LETTER YOQ;Lo;0;L;;;;;N;;;;;
+A6C0;BAMUM LETTER SHU;Lo;0;L;;;;;N;;;;;
+A6C1;BAMUM LETTER YUQ;Lo;0;L;;;;;N;;;;;
+A6C2;BAMUM LETTER YA;Lo;0;L;;;;;N;;;;;
+A6C3;BAMUM LETTER NSHA;Lo;0;L;;;;;N;;;;;
+A6C4;BAMUM LETTER KEUX;Lo;0;L;;;;;N;;;;;
+A6C5;BAMUM LETTER PEUX;Lo;0;L;;;;;N;;;;;
+A6C6;BAMUM LETTER NJEE;Lo;0;L;;;;;N;;;;;
+A6C7;BAMUM LETTER NTEE;Lo;0;L;;;;;N;;;;;
+A6C8;BAMUM LETTER PUE;Lo;0;L;;;;;N;;;;;
+A6C9;BAMUM LETTER WUE;Lo;0;L;;;;;N;;;;;
+A6CA;BAMUM LETTER PEE;Lo;0;L;;;;;N;;;;;
+A6CB;BAMUM LETTER FEE;Lo;0;L;;;;;N;;;;;
+A6CC;BAMUM LETTER RU;Lo;0;L;;;;;N;;;;;
+A6CD;BAMUM LETTER LU;Lo;0;L;;;;;N;;;;;
+A6CE;BAMUM LETTER MI;Lo;0;L;;;;;N;;;;;
+A6CF;BAMUM LETTER NI;Lo;0;L;;;;;N;;;;;
+A6D0;BAMUM LETTER REUX;Lo;0;L;;;;;N;;;;;
+A6D1;BAMUM LETTER RAE;Lo;0;L;;;;;N;;;;;
+A6D2;BAMUM LETTER KEN;Lo;0;L;;;;;N;;;;;
+A6D3;BAMUM LETTER NGKWAEN;Lo;0;L;;;;;N;;;;;
+A6D4;BAMUM LETTER NGGA;Lo;0;L;;;;;N;;;;;
+A6D5;BAMUM LETTER NGA;Lo;0;L;;;;;N;;;;;
+A6D6;BAMUM LETTER SHO;Lo;0;L;;;;;N;;;;;
+A6D7;BAMUM LETTER PUAE;Lo;0;L;;;;;N;;;;;
+A6D8;BAMUM LETTER FU;Lo;0;L;;;;;N;;;;;
+A6D9;BAMUM LETTER FOM;Lo;0;L;;;;;N;;;;;
+A6DA;BAMUM LETTER WA;Lo;0;L;;;;;N;;;;;
+A6DB;BAMUM LETTER NA;Lo;0;L;;;;;N;;;;;
+A6DC;BAMUM LETTER LI;Lo;0;L;;;;;N;;;;;
+A6DD;BAMUM LETTER PI;Lo;0;L;;;;;N;;;;;
+A6DE;BAMUM LETTER LOQ;Lo;0;L;;;;;N;;;;;
+A6DF;BAMUM LETTER KO;Lo;0;L;;;;;N;;;;;
+A6E0;BAMUM LETTER MBEN;Lo;0;L;;;;;N;;;;;
+A6E1;BAMUM LETTER REN;Lo;0;L;;;;;N;;;;;
+A6E2;BAMUM LETTER MEN;Lo;0;L;;;;;N;;;;;
+A6E3;BAMUM LETTER MA;Lo;0;L;;;;;N;;;;;
+A6E4;BAMUM LETTER TI;Lo;0;L;;;;;N;;;;;
+A6E5;BAMUM LETTER KI;Lo;0;L;;;;;N;;;;;
+A6E6;BAMUM LETTER MO;Nl;0;L;;;;1;N;;;;;
+A6E7;BAMUM LETTER MBAA;Nl;0;L;;;;2;N;;;;;
+A6E8;BAMUM LETTER TET;Nl;0;L;;;;3;N;;;;;
+A6E9;BAMUM LETTER KPA;Nl;0;L;;;;4;N;;;;;
+A6EA;BAMUM LETTER TEN;Nl;0;L;;;;5;N;;;;;
+A6EB;BAMUM LETTER NTUU;Nl;0;L;;;;6;N;;;;;
+A6EC;BAMUM LETTER SAMBA;Nl;0;L;;;;7;N;;;;;
+A6ED;BAMUM LETTER FAAMAE;Nl;0;L;;;;8;N;;;;;
+A6EE;BAMUM LETTER KOVUU;Nl;0;L;;;;9;N;;;;;
+A6EF;BAMUM LETTER KOGHOM;Nl;0;L;;;;0;N;;;;;
+A6F0;BAMUM COMBINING MARK KOQNDON;Mn;230;NSM;;;;;N;;;;;
+A6F1;BAMUM COMBINING MARK TUKWENTIS;Mn;230;NSM;;;;;N;;;;;
+A6F2;BAMUM NJAEMLI;Po;0;L;;;;;N;;;;;
+A6F3;BAMUM FULL STOP;Po;0;L;;;;;N;;;;;
+A6F4;BAMUM COLON;Po;0;L;;;;;N;;;;;
+A6F5;BAMUM COMMA;Po;0;L;;;;;N;;;;;
+A6F6;BAMUM SEMICOLON;Po;0;L;;;;;N;;;;;
+A6F7;BAMUM QUESTION MARK;Po;0;L;;;;;N;;;;;
+A700;MODIFIER LETTER CHINESE TONE YIN PING;Sk;0;ON;;;;;N;;;;;
+A701;MODIFIER LETTER CHINESE TONE YANG PING;Sk;0;ON;;;;;N;;;;;
+A702;MODIFIER LETTER CHINESE TONE YIN SHANG;Sk;0;ON;;;;;N;;;;;
+A703;MODIFIER LETTER CHINESE TONE YANG SHANG;Sk;0;ON;;;;;N;;;;;
+A704;MODIFIER LETTER CHINESE TONE YIN QU;Sk;0;ON;;;;;N;;;;;
+A705;MODIFIER LETTER CHINESE TONE YANG QU;Sk;0;ON;;;;;N;;;;;
+A706;MODIFIER LETTER CHINESE TONE YIN RU;Sk;0;ON;;;;;N;;;;;
+A707;MODIFIER LETTER CHINESE TONE YANG RU;Sk;0;ON;;;;;N;;;;;
+A708;MODIFIER LETTER EXTRA-HIGH DOTTED TONE BAR;Sk;0;ON;;;;;N;;;;;
+A709;MODIFIER LETTER HIGH DOTTED TONE BAR;Sk;0;ON;;;;;N;;;;;
+A70A;MODIFIER LETTER MID DOTTED TONE BAR;Sk;0;ON;;;;;N;;;;;
+A70B;MODIFIER LETTER LOW DOTTED TONE BAR;Sk;0;ON;;;;;N;;;;;
+A70C;MODIFIER LETTER EXTRA-LOW DOTTED TONE BAR;Sk;0;ON;;;;;N;;;;;
+A70D;MODIFIER LETTER EXTRA-HIGH DOTTED LEFT-STEM TONE BAR;Sk;0;ON;;;;;N;;;;;
+A70E;MODIFIER LETTER HIGH DOTTED LEFT-STEM TONE BAR;Sk;0;ON;;;;;N;;;;;
+A70F;MODIFIER LETTER MID DOTTED LEFT-STEM TONE BAR;Sk;0;ON;;;;;N;;;;;
+A710;MODIFIER LETTER LOW DOTTED LEFT-STEM TONE BAR;Sk;0;ON;;;;;N;;;;;
+A711;MODIFIER LETTER EXTRA-LOW DOTTED LEFT-STEM TONE BAR;Sk;0;ON;;;;;N;;;;;
+A712;MODIFIER LETTER EXTRA-HIGH LEFT-STEM TONE BAR;Sk;0;ON;;;;;N;;;;;
+A713;MODIFIER LETTER HIGH LEFT-STEM TONE BAR;Sk;0;ON;;;;;N;;;;;
+A714;MODIFIER LETTER MID LEFT-STEM TONE BAR;Sk;0;ON;;;;;N;;;;;
+A715;MODIFIER LETTER LOW LEFT-STEM TONE BAR;Sk;0;ON;;;;;N;;;;;
+A716;MODIFIER LETTER EXTRA-LOW LEFT-STEM TONE BAR;Sk;0;ON;;;;;N;;;;;
+A717;MODIFIER LETTER DOT VERTICAL BAR;Lm;0;ON;;;;;N;;;;;
+A718;MODIFIER LETTER DOT SLASH;Lm;0;ON;;;;;N;;;;;
+A719;MODIFIER LETTER DOT HORIZONTAL BAR;Lm;0;ON;;;;;N;;;;;
+A71A;MODIFIER LETTER LOWER RIGHT CORNER ANGLE;Lm;0;ON;;;;;N;;;;;
+A71B;MODIFIER LETTER RAISED UP ARROW;Lm;0;ON;;;;;N;;;;;
+A71C;MODIFIER LETTER RAISED DOWN ARROW;Lm;0;ON;;;;;N;;;;;
+A71D;MODIFIER LETTER RAISED EXCLAMATION MARK;Lm;0;ON;;;;;N;;;;;
+A71E;MODIFIER LETTER RAISED INVERTED EXCLAMATION MARK;Lm;0;ON;;;;;N;;;;;
+A71F;MODIFIER LETTER LOW INVERTED EXCLAMATION MARK;Lm;0;ON;;;;;N;;;;;
+A720;MODIFIER LETTER STRESS AND HIGH TONE;Sk;0;ON;;;;;N;;;;;
+A721;MODIFIER LETTER STRESS AND LOW TONE;Sk;0;ON;;;;;N;;;;;
+A722;LATIN CAPITAL LETTER EGYPTOLOGICAL ALEF;Lu;0;L;;;;;N;;;;A723;
+A723;LATIN SMALL LETTER EGYPTOLOGICAL ALEF;Ll;0;L;;;;;N;;;A722;;A722
+A724;LATIN CAPITAL LETTER EGYPTOLOGICAL AIN;Lu;0;L;;;;;N;;;;A725;
+A725;LATIN SMALL LETTER EGYPTOLOGICAL AIN;Ll;0;L;;;;;N;;;A724;;A724
+A726;LATIN CAPITAL LETTER HENG;Lu;0;L;;;;;N;;;;A727;
+A727;LATIN SMALL LETTER HENG;Ll;0;L;;;;;N;;;A726;;A726
+A728;LATIN CAPITAL LETTER TZ;Lu;0;L;;;;;N;;;;A729;
+A729;LATIN SMALL LETTER TZ;Ll;0;L;;;;;N;;;A728;;A728
+A72A;LATIN CAPITAL LETTER TRESILLO;Lu;0;L;;;;;N;;;;A72B;
+A72B;LATIN SMALL LETTER TRESILLO;Ll;0;L;;;;;N;;;A72A;;A72A
+A72C;LATIN CAPITAL LETTER CUATRILLO;Lu;0;L;;;;;N;;;;A72D;
+A72D;LATIN SMALL LETTER CUATRILLO;Ll;0;L;;;;;N;;;A72C;;A72C
+A72E;LATIN CAPITAL LETTER CUATRILLO WITH COMMA;Lu;0;L;;;;;N;;;;A72F;
+A72F;LATIN SMALL LETTER CUATRILLO WITH COMMA;Ll;0;L;;;;;N;;;A72E;;A72E
+A730;LATIN LETTER SMALL CAPITAL F;Ll;0;L;;;;;N;;;;;
+A731;LATIN LETTER SMALL CAPITAL S;Ll;0;L;;;;;N;;;;;
+A732;LATIN CAPITAL LETTER AA;Lu;0;L;;;;;N;;;;A733;
+A733;LATIN SMALL LETTER AA;Ll;0;L;;;;;N;;;A732;;A732
+A734;LATIN CAPITAL LETTER AO;Lu;0;L;;;;;N;;;;A735;
+A735;LATIN SMALL LETTER AO;Ll;0;L;;;;;N;;;A734;;A734
+A736;LATIN CAPITAL LETTER AU;Lu;0;L;;;;;N;;;;A737;
+A737;LATIN SMALL LETTER AU;Ll;0;L;;;;;N;;;A736;;A736
+A738;LATIN CAPITAL LETTER AV;Lu;0;L;;;;;N;;;;A739;
+A739;LATIN SMALL LETTER AV;Ll;0;L;;;;;N;;;A738;;A738
+A73A;LATIN CAPITAL LETTER AV WITH HORIZONTAL BAR;Lu;0;L;;;;;N;;;;A73B;
+A73B;LATIN SMALL LETTER AV WITH HORIZONTAL BAR;Ll;0;L;;;;;N;;;A73A;;A73A
+A73C;LATIN CAPITAL LETTER AY;Lu;0;L;;;;;N;;;;A73D;
+A73D;LATIN SMALL LETTER AY;Ll;0;L;;;;;N;;;A73C;;A73C
+A73E;LATIN CAPITAL LETTER REVERSED C WITH DOT;Lu;0;L;;;;;N;;;;A73F;
+A73F;LATIN SMALL LETTER REVERSED C WITH DOT;Ll;0;L;;;;;N;;;A73E;;A73E
+A740;LATIN CAPITAL LETTER K WITH STROKE;Lu;0;L;;;;;N;;;;A741;
+A741;LATIN SMALL LETTER K WITH STROKE;Ll;0;L;;;;;N;;;A740;;A740
+A742;LATIN CAPITAL LETTER K WITH DIAGONAL STROKE;Lu;0;L;;;;;N;;;;A743;
+A743;LATIN SMALL LETTER K WITH DIAGONAL STROKE;Ll;0;L;;;;;N;;;A742;;A742
+A744;LATIN CAPITAL LETTER K WITH STROKE AND DIAGONAL STROKE;Lu;0;L;;;;;N;;;;A745;
+A745;LATIN SMALL LETTER K WITH STROKE AND DIAGONAL STROKE;Ll;0;L;;;;;N;;;A744;;A744
+A746;LATIN CAPITAL LETTER BROKEN L;Lu;0;L;;;;;N;;;;A747;
+A747;LATIN SMALL LETTER BROKEN L;Ll;0;L;;;;;N;;;A746;;A746
+A748;LATIN CAPITAL LETTER L WITH HIGH STROKE;Lu;0;L;;;;;N;;;;A749;
+A749;LATIN SMALL LETTER L WITH HIGH STROKE;Ll;0;L;;;;;N;;;A748;;A748
+A74A;LATIN CAPITAL LETTER O WITH LONG STROKE OVERLAY;Lu;0;L;;;;;N;;;;A74B;
+A74B;LATIN SMALL LETTER O WITH LONG STROKE OVERLAY;Ll;0;L;;;;;N;;;A74A;;A74A
+A74C;LATIN CAPITAL LETTER O WITH LOOP;Lu;0;L;;;;;N;;;;A74D;
+A74D;LATIN SMALL LETTER O WITH LOOP;Ll;0;L;;;;;N;;;A74C;;A74C
+A74E;LATIN CAPITAL LETTER OO;Lu;0;L;;;;;N;;;;A74F;
+A74F;LATIN SMALL LETTER OO;Ll;0;L;;;;;N;;;A74E;;A74E
+A750;LATIN CAPITAL LETTER P WITH STROKE THROUGH DESCENDER;Lu;0;L;;;;;N;;;;A751;
+A751;LATIN SMALL LETTER P WITH STROKE THROUGH DESCENDER;Ll;0;L;;;;;N;;;A750;;A750
+A752;LATIN CAPITAL LETTER P WITH FLOURISH;Lu;0;L;;;;;N;;;;A753;
+A753;LATIN SMALL LETTER P WITH FLOURISH;Ll;0;L;;;;;N;;;A752;;A752
+A754;LATIN CAPITAL LETTER P WITH SQUIRREL TAIL;Lu;0;L;;;;;N;;;;A755;
+A755;LATIN SMALL LETTER P WITH SQUIRREL TAIL;Ll;0;L;;;;;N;;;A754;;A754
+A756;LATIN CAPITAL LETTER Q WITH STROKE THROUGH DESCENDER;Lu;0;L;;;;;N;;;;A757;
+A757;LATIN SMALL LETTER Q WITH STROKE THROUGH DESCENDER;Ll;0;L;;;;;N;;;A756;;A756
+A758;LATIN CAPITAL LETTER Q WITH DIAGONAL STROKE;Lu;0;L;;;;;N;;;;A759;
+A759;LATIN SMALL LETTER Q WITH DIAGONAL STROKE;Ll;0;L;;;;;N;;;A758;;A758
+A75A;LATIN CAPITAL LETTER R ROTUNDA;Lu;0;L;;;;;N;;;;A75B;
+A75B;LATIN SMALL LETTER R ROTUNDA;Ll;0;L;;;;;N;;;A75A;;A75A
+A75C;LATIN CAPITAL LETTER RUM ROTUNDA;Lu;0;L;;;;;N;;;;A75D;
+A75D;LATIN SMALL LETTER RUM ROTUNDA;Ll;0;L;;;;;N;;;A75C;;A75C
+A75E;LATIN CAPITAL LETTER V WITH DIAGONAL STROKE;Lu;0;L;;;;;N;;;;A75F;
+A75F;LATIN SMALL LETTER V WITH DIAGONAL STROKE;Ll;0;L;;;;;N;;;A75E;;A75E
+A760;LATIN CAPITAL LETTER VY;Lu;0;L;;;;;N;;;;A761;
+A761;LATIN SMALL LETTER VY;Ll;0;L;;;;;N;;;A760;;A760
+A762;LATIN CAPITAL LETTER VISIGOTHIC Z;Lu;0;L;;;;;N;;;;A763;
+A763;LATIN SMALL LETTER VISIGOTHIC Z;Ll;0;L;;;;;N;;;A762;;A762
+A764;LATIN CAPITAL LETTER THORN WITH STROKE;Lu;0;L;;;;;N;;;;A765;
+A765;LATIN SMALL LETTER THORN WITH STROKE;Ll;0;L;;;;;N;;;A764;;A764
+A766;LATIN CAPITAL LETTER THORN WITH STROKE THROUGH DESCENDER;Lu;0;L;;;;;N;;;;A767;
+A767;LATIN SMALL LETTER THORN WITH STROKE THROUGH DESCENDER;Ll;0;L;;;;;N;;;A766;;A766
+A768;LATIN CAPITAL LETTER VEND;Lu;0;L;;;;;N;;;;A769;
+A769;LATIN SMALL LETTER VEND;Ll;0;L;;;;;N;;;A768;;A768
+A76A;LATIN CAPITAL LETTER ET;Lu;0;L;;;;;N;;;;A76B;
+A76B;LATIN SMALL LETTER ET;Ll;0;L;;;;;N;;;A76A;;A76A
+A76C;LATIN CAPITAL LETTER IS;Lu;0;L;;;;;N;;;;A76D;
+A76D;LATIN SMALL LETTER IS;Ll;0;L;;;;;N;;;A76C;;A76C
+A76E;LATIN CAPITAL LETTER CON;Lu;0;L;;;;;N;;;;A76F;
+A76F;LATIN SMALL LETTER CON;Ll;0;L;;;;;N;;;A76E;;A76E
+A770;MODIFIER LETTER US;Lm;0;L;<super> A76F;;;;N;;;;;
+A771;LATIN SMALL LETTER DUM;Ll;0;L;;;;;N;;;;;
+A772;LATIN SMALL LETTER LUM;Ll;0;L;;;;;N;;;;;
+A773;LATIN SMALL LETTER MUM;Ll;0;L;;;;;N;;;;;
+A774;LATIN SMALL LETTER NUM;Ll;0;L;;;;;N;;;;;
+A775;LATIN SMALL LETTER RUM;Ll;0;L;;;;;N;;;;;
+A776;LATIN LETTER SMALL CAPITAL RUM;Ll;0;L;;;;;N;;;;;
+A777;LATIN SMALL LETTER TUM;Ll;0;L;;;;;N;;;;;
+A778;LATIN SMALL LETTER UM;Ll;0;L;;;;;N;;;;;
+A779;LATIN CAPITAL LETTER INSULAR D;Lu;0;L;;;;;N;;;;A77A;
+A77A;LATIN SMALL LETTER INSULAR D;Ll;0;L;;;;;N;;;A779;;A779
+A77B;LATIN CAPITAL LETTER INSULAR F;Lu;0;L;;;;;N;;;;A77C;
+A77C;LATIN SMALL LETTER INSULAR F;Ll;0;L;;;;;N;;;A77B;;A77B
+A77D;LATIN CAPITAL LETTER INSULAR G;Lu;0;L;;;;;N;;;;1D79;
+A77E;LATIN CAPITAL LETTER TURNED INSULAR G;Lu;0;L;;;;;N;;;;A77F;
+A77F;LATIN SMALL LETTER TURNED INSULAR G;Ll;0;L;;;;;N;;;A77E;;A77E
+A780;LATIN CAPITAL LETTER TURNED L;Lu;0;L;;;;;N;;;;A781;
+A781;LATIN SMALL LETTER TURNED L;Ll;0;L;;;;;N;;;A780;;A780
+A782;LATIN CAPITAL LETTER INSULAR R;Lu;0;L;;;;;N;;;;A783;
+A783;LATIN SMALL LETTER INSULAR R;Ll;0;L;;;;;N;;;A782;;A782
+A784;LATIN CAPITAL LETTER INSULAR S;Lu;0;L;;;;;N;;;;A785;
+A785;LATIN SMALL LETTER INSULAR S;Ll;0;L;;;;;N;;;A784;;A784
+A786;LATIN CAPITAL LETTER INSULAR T;Lu;0;L;;;;;N;;;;A787;
+A787;LATIN SMALL LETTER INSULAR T;Ll;0;L;;;;;N;;;A786;;A786
+A788;MODIFIER LETTER LOW CIRCUMFLEX ACCENT;Lm;0;ON;;;;;N;;;;;
+A789;MODIFIER LETTER COLON;Sk;0;L;;;;;N;;;;;
+A78A;MODIFIER LETTER SHORT EQUALS SIGN;Sk;0;L;;;;;N;;;;;
+A78B;LATIN CAPITAL LETTER SALTILLO;Lu;0;L;;;;;N;;;;A78C;
+A78C;LATIN SMALL LETTER SALTILLO;Ll;0;L;;;;;N;;;A78B;;A78B
+A78D;LATIN CAPITAL LETTER TURNED H;Lu;0;L;;;;;N;;;;0265;
+A78E;LATIN SMALL LETTER L WITH RETROFLEX HOOK AND BELT;Ll;0;L;;;;;N;;;;;
+A790;LATIN CAPITAL LETTER N WITH DESCENDER;Lu;0;L;;;;;N;;;;A791;
+A791;LATIN SMALL LETTER N WITH DESCENDER;Ll;0;L;;;;;N;;;A790;;A790
+A792;LATIN CAPITAL LETTER C WITH BAR;Lu;0;L;;;;;N;;;;A793;
+A793;LATIN SMALL LETTER C WITH BAR;Ll;0;L;;;;;N;;;A792;;A792
+A7A0;LATIN CAPITAL LETTER G WITH OBLIQUE STROKE;Lu;0;L;;;;;N;;;;A7A1;
+A7A1;LATIN SMALL LETTER G WITH OBLIQUE STROKE;Ll;0;L;;;;;N;;;A7A0;;A7A0
+A7A2;LATIN CAPITAL LETTER K WITH OBLIQUE STROKE;Lu;0;L;;;;;N;;;;A7A3;
+A7A3;LATIN SMALL LETTER K WITH OBLIQUE STROKE;Ll;0;L;;;;;N;;;A7A2;;A7A2
+A7A4;LATIN CAPITAL LETTER N WITH OBLIQUE STROKE;Lu;0;L;;;;;N;;;;A7A5;
+A7A5;LATIN SMALL LETTER N WITH OBLIQUE STROKE;Ll;0;L;;;;;N;;;A7A4;;A7A4
+A7A6;LATIN CAPITAL LETTER R WITH OBLIQUE STROKE;Lu;0;L;;;;;N;;;;A7A7;
+A7A7;LATIN SMALL LETTER R WITH OBLIQUE STROKE;Ll;0;L;;;;;N;;;A7A6;;A7A6
+A7A8;LATIN CAPITAL LETTER S WITH OBLIQUE STROKE;Lu;0;L;;;;;N;;;;A7A9;
+A7A9;LATIN SMALL LETTER S WITH OBLIQUE STROKE;Ll;0;L;;;;;N;;;A7A8;;A7A8
+A7AA;LATIN CAPITAL LETTER H WITH HOOK;Lu;0;L;;;;;N;;;;0266;
+A7F8;MODIFIER LETTER CAPITAL H WITH STROKE;Lm;0;L;<super> 0126;;;;N;;;;;
+A7F9;MODIFIER LETTER SMALL LIGATURE OE;Lm;0;L;<super> 0153;;;;N;;;;;
+A7FA;LATIN LETTER SMALL CAPITAL TURNED M;Ll;0;L;;;;;N;;;;;
+A7FB;LATIN EPIGRAPHIC LETTER REVERSED F;Lo;0;L;;;;;N;;;;;
+A7FC;LATIN EPIGRAPHIC LETTER REVERSED P;Lo;0;L;;;;;N;;;;;
+A7FD;LATIN EPIGRAPHIC LETTER INVERTED M;Lo;0;L;;;;;N;;;;;
+A7FE;LATIN EPIGRAPHIC LETTER I LONGA;Lo;0;L;;;;;N;;;;;
+A7FF;LATIN EPIGRAPHIC LETTER ARCHAIC M;Lo;0;L;;;;;N;;;;;
+A800;SYLOTI NAGRI LETTER A;Lo;0;L;;;;;N;;;;;
+A801;SYLOTI NAGRI LETTER I;Lo;0;L;;;;;N;;;;;
+A802;SYLOTI NAGRI SIGN DVISVARA;Mn;0;NSM;;;;;N;;;;;
+A803;SYLOTI NAGRI LETTER U;Lo;0;L;;;;;N;;;;;
+A804;SYLOTI NAGRI LETTER E;Lo;0;L;;;;;N;;;;;
+A805;SYLOTI NAGRI LETTER O;Lo;0;L;;;;;N;;;;;
+A806;SYLOTI NAGRI SIGN HASANTA;Mn;9;NSM;;;;;N;;;;;
+A807;SYLOTI NAGRI LETTER KO;Lo;0;L;;;;;N;;;;;
+A808;SYLOTI NAGRI LETTER KHO;Lo;0;L;;;;;N;;;;;
+A809;SYLOTI NAGRI LETTER GO;Lo;0;L;;;;;N;;;;;
+A80A;SYLOTI NAGRI LETTER GHO;Lo;0;L;;;;;N;;;;;
+A80B;SYLOTI NAGRI SIGN ANUSVARA;Mn;0;NSM;;;;;N;;;;;
+A80C;SYLOTI NAGRI LETTER CO;Lo;0;L;;;;;N;;;;;
+A80D;SYLOTI NAGRI LETTER CHO;Lo;0;L;;;;;N;;;;;
+A80E;SYLOTI NAGRI LETTER JO;Lo;0;L;;;;;N;;;;;
+A80F;SYLOTI NAGRI LETTER JHO;Lo;0;L;;;;;N;;;;;
+A810;SYLOTI NAGRI LETTER TTO;Lo;0;L;;;;;N;;;;;
+A811;SYLOTI NAGRI LETTER TTHO;Lo;0;L;;;;;N;;;;;
+A812;SYLOTI NAGRI LETTER DDO;Lo;0;L;;;;;N;;;;;
+A813;SYLOTI NAGRI LETTER DDHO;Lo;0;L;;;;;N;;;;;
+A814;SYLOTI NAGRI LETTER TO;Lo;0;L;;;;;N;;;;;
+A815;SYLOTI NAGRI LETTER THO;Lo;0;L;;;;;N;;;;;
+A816;SYLOTI NAGRI LETTER DO;Lo;0;L;;;;;N;;;;;
+A817;SYLOTI NAGRI LETTER DHO;Lo;0;L;;;;;N;;;;;
+A818;SYLOTI NAGRI LETTER NO;Lo;0;L;;;;;N;;;;;
+A819;SYLOTI NAGRI LETTER PO;Lo;0;L;;;;;N;;;;;
+A81A;SYLOTI NAGRI LETTER PHO;Lo;0;L;;;;;N;;;;;
+A81B;SYLOTI NAGRI LETTER BO;Lo;0;L;;;;;N;;;;;
+A81C;SYLOTI NAGRI LETTER BHO;Lo;0;L;;;;;N;;;;;
+A81D;SYLOTI NAGRI LETTER MO;Lo;0;L;;;;;N;;;;;
+A81E;SYLOTI NAGRI LETTER RO;Lo;0;L;;;;;N;;;;;
+A81F;SYLOTI NAGRI LETTER LO;Lo;0;L;;;;;N;;;;;
+A820;SYLOTI NAGRI LETTER RRO;Lo;0;L;;;;;N;;;;;
+A821;SYLOTI NAGRI LETTER SO;Lo;0;L;;;;;N;;;;;
+A822;SYLOTI NAGRI LETTER HO;Lo;0;L;;;;;N;;;;;
+A823;SYLOTI NAGRI VOWEL SIGN A;Mc;0;L;;;;;N;;;;;
+A824;SYLOTI NAGRI VOWEL SIGN I;Mc;0;L;;;;;N;;;;;
+A825;SYLOTI NAGRI VOWEL SIGN U;Mn;0;NSM;;;;;N;;;;;
+A826;SYLOTI NAGRI VOWEL SIGN E;Mn;0;NSM;;;;;N;;;;;
+A827;SYLOTI NAGRI VOWEL SIGN OO;Mc;0;L;;;;;N;;;;;
+A828;SYLOTI NAGRI POETRY MARK-1;So;0;ON;;;;;N;;;;;
+A829;SYLOTI NAGRI POETRY MARK-2;So;0;ON;;;;;N;;;;;
+A82A;SYLOTI NAGRI POETRY MARK-3;So;0;ON;;;;;N;;;;;
+A82B;SYLOTI NAGRI POETRY MARK-4;So;0;ON;;;;;N;;;;;
+A830;NORTH INDIC FRACTION ONE QUARTER;No;0;L;;;;1/4;N;;;;;
+A831;NORTH INDIC FRACTION ONE HALF;No;0;L;;;;1/2;N;;;;;
+A832;NORTH INDIC FRACTION THREE QUARTERS;No;0;L;;;;3/4;N;;;;;
+A833;NORTH INDIC FRACTION ONE SIXTEENTH;No;0;L;;;;1/16;N;;;;;
+A834;NORTH INDIC FRACTION ONE EIGHTH;No;0;L;;;;1/8;N;;;;;
+A835;NORTH INDIC FRACTION THREE SIXTEENTHS;No;0;L;;;;3/16;N;;;;;
+A836;NORTH INDIC QUARTER MARK;So;0;L;;;;;N;;;;;
+A837;NORTH INDIC PLACEHOLDER MARK;So;0;L;;;;;N;;;;;
+A838;NORTH INDIC RUPEE MARK;Sc;0;ET;;;;;N;;;;;
+A839;NORTH INDIC QUANTITY MARK;So;0;ET;;;;;N;;;;;
+A840;PHAGS-PA LETTER KA;Lo;0;L;;;;;N;;;;;
+A841;PHAGS-PA LETTER KHA;Lo;0;L;;;;;N;;;;;
+A842;PHAGS-PA LETTER GA;Lo;0;L;;;;;N;;;;;
+A843;PHAGS-PA LETTER NGA;Lo;0;L;;;;;N;;;;;
+A844;PHAGS-PA LETTER CA;Lo;0;L;;;;;N;;;;;
+A845;PHAGS-PA LETTER CHA;Lo;0;L;;;;;N;;;;;
+A846;PHAGS-PA LETTER JA;Lo;0;L;;;;;N;;;;;
+A847;PHAGS-PA LETTER NYA;Lo;0;L;;;;;N;;;;;
+A848;PHAGS-PA LETTER TA;Lo;0;L;;;;;N;;;;;
+A849;PHAGS-PA LETTER THA;Lo;0;L;;;;;N;;;;;
+A84A;PHAGS-PA LETTER DA;Lo;0;L;;;;;N;;;;;
+A84B;PHAGS-PA LETTER NA;Lo;0;L;;;;;N;;;;;
+A84C;PHAGS-PA LETTER PA;Lo;0;L;;;;;N;;;;;
+A84D;PHAGS-PA LETTER PHA;Lo;0;L;;;;;N;;;;;
+A84E;PHAGS-PA LETTER BA;Lo;0;L;;;;;N;;;;;
+A84F;PHAGS-PA LETTER MA;Lo;0;L;;;;;N;;;;;
+A850;PHAGS-PA LETTER TSA;Lo;0;L;;;;;N;;;;;
+A851;PHAGS-PA LETTER TSHA;Lo;0;L;;;;;N;;;;;
+A852;PHAGS-PA LETTER DZA;Lo;0;L;;;;;N;;;;;
+A853;PHAGS-PA LETTER WA;Lo;0;L;;;;;N;;;;;
+A854;PHAGS-PA LETTER ZHA;Lo;0;L;;;;;N;;;;;
+A855;PHAGS-PA LETTER ZA;Lo;0;L;;;;;N;;;;;
+A856;PHAGS-PA LETTER SMALL A;Lo;0;L;;;;;N;;;;;
+A857;PHAGS-PA LETTER YA;Lo;0;L;;;;;N;;;;;
+A858;PHAGS-PA LETTER RA;Lo;0;L;;;;;N;;;;;
+A859;PHAGS-PA LETTER LA;Lo;0;L;;;;;N;;;;;
+A85A;PHAGS-PA LETTER SHA;Lo;0;L;;;;;N;;;;;
+A85B;PHAGS-PA LETTER SA;Lo;0;L;;;;;N;;;;;
+A85C;PHAGS-PA LETTER HA;Lo;0;L;;;;;N;;;;;
+A85D;PHAGS-PA LETTER A;Lo;0;L;;;;;N;;;;;
+A85E;PHAGS-PA LETTER I;Lo;0;L;;;;;N;;;;;
+A85F;PHAGS-PA LETTER U;Lo;0;L;;;;;N;;;;;
+A860;PHAGS-PA LETTER E;Lo;0;L;;;;;N;;;;;
+A861;PHAGS-PA LETTER O;Lo;0;L;;;;;N;;;;;
+A862;PHAGS-PA LETTER QA;Lo;0;L;;;;;N;;;;;
+A863;PHAGS-PA LETTER XA;Lo;0;L;;;;;N;;;;;
+A864;PHAGS-PA LETTER FA;Lo;0;L;;;;;N;;;;;
+A865;PHAGS-PA LETTER GGA;Lo;0;L;;;;;N;;;;;
+A866;PHAGS-PA LETTER EE;Lo;0;L;;;;;N;;;;;
+A867;PHAGS-PA SUBJOINED LETTER WA;Lo;0;L;;;;;N;;;;;
+A868;PHAGS-PA SUBJOINED LETTER YA;Lo;0;L;;;;;N;;;;;
+A869;PHAGS-PA LETTER TTA;Lo;0;L;;;;;N;;;;;
+A86A;PHAGS-PA LETTER TTHA;Lo;0;L;;;;;N;;;;;
+A86B;PHAGS-PA LETTER DDA;Lo;0;L;;;;;N;;;;;
+A86C;PHAGS-PA LETTER NNA;Lo;0;L;;;;;N;;;;;
+A86D;PHAGS-PA LETTER ALTERNATE YA;Lo;0;L;;;;;N;;;;;
+A86E;PHAGS-PA LETTER VOICELESS SHA;Lo;0;L;;;;;N;;;;;
+A86F;PHAGS-PA LETTER VOICED HA;Lo;0;L;;;;;N;;;;;
+A870;PHAGS-PA LETTER ASPIRATED FA;Lo;0;L;;;;;N;;;;;
+A871;PHAGS-PA SUBJOINED LETTER RA;Lo;0;L;;;;;N;;;;;
+A872;PHAGS-PA SUPERFIXED LETTER RA;Lo;0;L;;;;;N;;;;;
+A873;PHAGS-PA LETTER CANDRABINDU;Lo;0;L;;;;;N;;;;;
+A874;PHAGS-PA SINGLE HEAD MARK;Po;0;ON;;;;;N;;;;;
+A875;PHAGS-PA DOUBLE HEAD MARK;Po;0;ON;;;;;N;;;;;
+A876;PHAGS-PA MARK SHAD;Po;0;ON;;;;;N;;;;;
+A877;PHAGS-PA MARK DOUBLE SHAD;Po;0;ON;;;;;N;;;;;
+A880;SAURASHTRA SIGN ANUSVARA;Mc;0;L;;;;;N;;;;;
+A881;SAURASHTRA SIGN VISARGA;Mc;0;L;;;;;N;;;;;
+A882;SAURASHTRA LETTER A;Lo;0;L;;;;;N;;;;;
+A883;SAURASHTRA LETTER AA;Lo;0;L;;;;;N;;;;;
+A884;SAURASHTRA LETTER I;Lo;0;L;;;;;N;;;;;
+A885;SAURASHTRA LETTER II;Lo;0;L;;;;;N;;;;;
+A886;SAURASHTRA LETTER U;Lo;0;L;;;;;N;;;;;
+A887;SAURASHTRA LETTER UU;Lo;0;L;;;;;N;;;;;
+A888;SAURASHTRA LETTER VOCALIC R;Lo;0;L;;;;;N;;;;;
+A889;SAURASHTRA LETTER VOCALIC RR;Lo;0;L;;;;;N;;;;;
+A88A;SAURASHTRA LETTER VOCALIC L;Lo;0;L;;;;;N;;;;;
+A88B;SAURASHTRA LETTER VOCALIC LL;Lo;0;L;;;;;N;;;;;
+A88C;SAURASHTRA LETTER E;Lo;0;L;;;;;N;;;;;
+A88D;SAURASHTRA LETTER EE;Lo;0;L;;;;;N;;;;;
+A88E;SAURASHTRA LETTER AI;Lo;0;L;;;;;N;;;;;
+A88F;SAURASHTRA LETTER O;Lo;0;L;;;;;N;;;;;
+A890;SAURASHTRA LETTER OO;Lo;0;L;;;;;N;;;;;
+A891;SAURASHTRA LETTER AU;Lo;0;L;;;;;N;;;;;
+A892;SAURASHTRA LETTER KA;Lo;0;L;;;;;N;;;;;
+A893;SAURASHTRA LETTER KHA;Lo;0;L;;;;;N;;;;;
+A894;SAURASHTRA LETTER GA;Lo;0;L;;;;;N;;;;;
+A895;SAURASHTRA LETTER GHA;Lo;0;L;;;;;N;;;;;
+A896;SAURASHTRA LETTER NGA;Lo;0;L;;;;;N;;;;;
+A897;SAURASHTRA LETTER CA;Lo;0;L;;;;;N;;;;;
+A898;SAURASHTRA LETTER CHA;Lo;0;L;;;;;N;;;;;
+A899;SAURASHTRA LETTER JA;Lo;0;L;;;;;N;;;;;
+A89A;SAURASHTRA LETTER JHA;Lo;0;L;;;;;N;;;;;
+A89B;SAURASHTRA LETTER NYA;Lo;0;L;;;;;N;;;;;
+A89C;SAURASHTRA LETTER TTA;Lo;0;L;;;;;N;;;;;
+A89D;SAURASHTRA LETTER TTHA;Lo;0;L;;;;;N;;;;;
+A89E;SAURASHTRA LETTER DDA;Lo;0;L;;;;;N;;;;;
+A89F;SAURASHTRA LETTER DDHA;Lo;0;L;;;;;N;;;;;
+A8A0;SAURASHTRA LETTER NNA;Lo;0;L;;;;;N;;;;;
+A8A1;SAURASHTRA LETTER TA;Lo;0;L;;;;;N;;;;;
+A8A2;SAURASHTRA LETTER THA;Lo;0;L;;;;;N;;;;;
+A8A3;SAURASHTRA LETTER DA;Lo;0;L;;;;;N;;;;;
+A8A4;SAURASHTRA LETTER DHA;Lo;0;L;;;;;N;;;;;
+A8A5;SAURASHTRA LETTER NA;Lo;0;L;;;;;N;;;;;
+A8A6;SAURASHTRA LETTER PA;Lo;0;L;;;;;N;;;;;
+A8A7;SAURASHTRA LETTER PHA;Lo;0;L;;;;;N;;;;;
+A8A8;SAURASHTRA LETTER BA;Lo;0;L;;;;;N;;;;;
+A8A9;SAURASHTRA LETTER BHA;Lo;0;L;;;;;N;;;;;
+A8AA;SAURASHTRA LETTER MA;Lo;0;L;;;;;N;;;;;
+A8AB;SAURASHTRA LETTER YA;Lo;0;L;;;;;N;;;;;
+A8AC;SAURASHTRA LETTER RA;Lo;0;L;;;;;N;;;;;
+A8AD;SAURASHTRA LETTER LA;Lo;0;L;;;;;N;;;;;
+A8AE;SAURASHTRA LETTER VA;Lo;0;L;;;;;N;;;;;
+A8AF;SAURASHTRA LETTER SHA;Lo;0;L;;;;;N;;;;;
+A8B0;SAURASHTRA LETTER SSA;Lo;0;L;;;;;N;;;;;
+A8B1;SAURASHTRA LETTER SA;Lo;0;L;;;;;N;;;;;
+A8B2;SAURASHTRA LETTER HA;Lo;0;L;;;;;N;;;;;
+A8B3;SAURASHTRA LETTER LLA;Lo;0;L;;;;;N;;;;;
+A8B4;SAURASHTRA CONSONANT SIGN HAARU;Mc;0;L;;;;;N;;;;;
+A8B5;SAURASHTRA VOWEL SIGN AA;Mc;0;L;;;;;N;;;;;
+A8B6;SAURASHTRA VOWEL SIGN I;Mc;0;L;;;;;N;;;;;
+A8B7;SAURASHTRA VOWEL SIGN II;Mc;0;L;;;;;N;;;;;
+A8B8;SAURASHTRA VOWEL SIGN U;Mc;0;L;;;;;N;;;;;
+A8B9;SAURASHTRA VOWEL SIGN UU;Mc;0;L;;;;;N;;;;;
+A8BA;SAURASHTRA VOWEL SIGN VOCALIC R;Mc;0;L;;;;;N;;;;;
+A8BB;SAURASHTRA VOWEL SIGN VOCALIC RR;Mc;0;L;;;;;N;;;;;
+A8BC;SAURASHTRA VOWEL SIGN VOCALIC L;Mc;0;L;;;;;N;;;;;
+A8BD;SAURASHTRA VOWEL SIGN VOCALIC LL;Mc;0;L;;;;;N;;;;;
+A8BE;SAURASHTRA VOWEL SIGN E;Mc;0;L;;;;;N;;;;;
+A8BF;SAURASHTRA VOWEL SIGN EE;Mc;0;L;;;;;N;;;;;
+A8C0;SAURASHTRA VOWEL SIGN AI;Mc;0;L;;;;;N;;;;;
+A8C1;SAURASHTRA VOWEL SIGN O;Mc;0;L;;;;;N;;;;;
+A8C2;SAURASHTRA VOWEL SIGN OO;Mc;0;L;;;;;N;;;;;
+A8C3;SAURASHTRA VOWEL SIGN AU;Mc;0;L;;;;;N;;;;;
+A8C4;SAURASHTRA SIGN VIRAMA;Mn;9;NSM;;;;;N;;;;;
+A8CE;SAURASHTRA DANDA;Po;0;L;;;;;N;;;;;
+A8CF;SAURASHTRA DOUBLE DANDA;Po;0;L;;;;;N;;;;;
+A8D0;SAURASHTRA DIGIT ZERO;Nd;0;L;;0;0;0;N;;;;;
+A8D1;SAURASHTRA DIGIT ONE;Nd;0;L;;1;1;1;N;;;;;
+A8D2;SAURASHTRA DIGIT TWO;Nd;0;L;;2;2;2;N;;;;;
+A8D3;SAURASHTRA DIGIT THREE;Nd;0;L;;3;3;3;N;;;;;
+A8D4;SAURASHTRA DIGIT FOUR;Nd;0;L;;4;4;4;N;;;;;
+A8D5;SAURASHTRA DIGIT FIVE;Nd;0;L;;5;5;5;N;;;;;
+A8D6;SAURASHTRA DIGIT SIX;Nd;0;L;;6;6;6;N;;;;;
+A8D7;SAURASHTRA DIGIT SEVEN;Nd;0;L;;7;7;7;N;;;;;
+A8D8;SAURASHTRA DIGIT EIGHT;Nd;0;L;;8;8;8;N;;;;;
+A8D9;SAURASHTRA DIGIT NINE;Nd;0;L;;9;9;9;N;;;;;
+A8E0;COMBINING DEVANAGARI DIGIT ZERO;Mn;230;NSM;;;;;N;;;;;
+A8E1;COMBINING DEVANAGARI DIGIT ONE;Mn;230;NSM;;;;;N;;;;;
+A8E2;COMBINING DEVANAGARI DIGIT TWO;Mn;230;NSM;;;;;N;;;;;
+A8E3;COMBINING DEVANAGARI DIGIT THREE;Mn;230;NSM;;;;;N;;;;;
+A8E4;COMBINING DEVANAGARI DIGIT FOUR;Mn;230;NSM;;;;;N;;;;;
+A8E5;COMBINING DEVANAGARI DIGIT FIVE;Mn;230;NSM;;;;;N;;;;;
+A8E6;COMBINING DEVANAGARI DIGIT SIX;Mn;230;NSM;;;;;N;;;;;
+A8E7;COMBINING DEVANAGARI DIGIT SEVEN;Mn;230;NSM;;;;;N;;;;;
+A8E8;COMBINING DEVANAGARI DIGIT EIGHT;Mn;230;NSM;;;;;N;;;;;
+A8E9;COMBINING DEVANAGARI DIGIT NINE;Mn;230;NSM;;;;;N;;;;;
+A8EA;COMBINING DEVANAGARI LETTER A;Mn;230;NSM;;;;;N;;;;;
+A8EB;COMBINING DEVANAGARI LETTER U;Mn;230;NSM;;;;;N;;;;;
+A8EC;COMBINING DEVANAGARI LETTER KA;Mn;230;NSM;;;;;N;;;;;
+A8ED;COMBINING DEVANAGARI LETTER NA;Mn;230;NSM;;;;;N;;;;;
+A8EE;COMBINING DEVANAGARI LETTER PA;Mn;230;NSM;;;;;N;;;;;
+A8EF;COMBINING DEVANAGARI LETTER RA;Mn;230;NSM;;;;;N;;;;;
+A8F0;COMBINING DEVANAGARI LETTER VI;Mn;230;NSM;;;;;N;;;;;
+A8F1;COMBINING DEVANAGARI SIGN AVAGRAHA;Mn;230;NSM;;;;;N;;;;;
+A8F2;DEVANAGARI SIGN SPACING CANDRABINDU;Lo;0;L;;;;;N;;;;;
+A8F3;DEVANAGARI SIGN CANDRABINDU VIRAMA;Lo;0;L;;;;;N;;;;;
+A8F4;DEVANAGARI SIGN DOUBLE CANDRABINDU VIRAMA;Lo;0;L;;;;;N;;;;;
+A8F5;DEVANAGARI SIGN CANDRABINDU TWO;Lo;0;L;;;;;N;;;;;
+A8F6;DEVANAGARI SIGN CANDRABINDU THREE;Lo;0;L;;;;;N;;;;;
+A8F7;DEVANAGARI SIGN CANDRABINDU AVAGRAHA;Lo;0;L;;;;;N;;;;;
+A8F8;DEVANAGARI SIGN PUSHPIKA;Po;0;L;;;;;N;;;;;
+A8F9;DEVANAGARI GAP FILLER;Po;0;L;;;;;N;;;;;
+A8FA;DEVANAGARI CARET;Po;0;L;;;;;N;;;;;
+A8FB;DEVANAGARI HEADSTROKE;Lo;0;L;;;;;N;;;;;
+A900;KAYAH LI DIGIT ZERO;Nd;0;L;;0;0;0;N;;;;;
+A901;KAYAH LI DIGIT ONE;Nd;0;L;;1;1;1;N;;;;;
+A902;KAYAH LI DIGIT TWO;Nd;0;L;;2;2;2;N;;;;;
+A903;KAYAH LI DIGIT THREE;Nd;0;L;;3;3;3;N;;;;;
+A904;KAYAH LI DIGIT FOUR;Nd;0;L;;4;4;4;N;;;;;
+A905;KAYAH LI DIGIT FIVE;Nd;0;L;;5;5;5;N;;;;;
+A906;KAYAH LI DIGIT SIX;Nd;0;L;;6;6;6;N;;;;;
+A907;KAYAH LI DIGIT SEVEN;Nd;0;L;;7;7;7;N;;;;;
+A908;KAYAH LI DIGIT EIGHT;Nd;0;L;;8;8;8;N;;;;;
+A909;KAYAH LI DIGIT NINE;Nd;0;L;;9;9;9;N;;;;;
+A90A;KAYAH LI LETTER KA;Lo;0;L;;;;;N;;;;;
+A90B;KAYAH LI LETTER KHA;Lo;0;L;;;;;N;;;;;
+A90C;KAYAH LI LETTER GA;Lo;0;L;;;;;N;;;;;
+A90D;KAYAH LI LETTER NGA;Lo;0;L;;;;;N;;;;;
+A90E;KAYAH LI LETTER SA;Lo;0;L;;;;;N;;;;;
+A90F;KAYAH LI LETTER SHA;Lo;0;L;;;;;N;;;;;
+A910;KAYAH LI LETTER ZA;Lo;0;L;;;;;N;;;;;
+A911;KAYAH LI LETTER NYA;Lo;0;L;;;;;N;;;;;
+A912;KAYAH LI LETTER TA;Lo;0;L;;;;;N;;;;;
+A913;KAYAH LI LETTER HTA;Lo;0;L;;;;;N;;;;;
+A914;KAYAH LI LETTER NA;Lo;0;L;;;;;N;;;;;
+A915;KAYAH LI LETTER PA;Lo;0;L;;;;;N;;;;;
+A916;KAYAH LI LETTER PHA;Lo;0;L;;;;;N;;;;;
+A917;KAYAH LI LETTER MA;Lo;0;L;;;;;N;;;;;
+A918;KAYAH LI LETTER DA;Lo;0;L;;;;;N;;;;;
+A919;KAYAH LI LETTER BA;Lo;0;L;;;;;N;;;;;
+A91A;KAYAH LI LETTER RA;Lo;0;L;;;;;N;;;;;
+A91B;KAYAH LI LETTER YA;Lo;0;L;;;;;N;;;;;
+A91C;KAYAH LI LETTER LA;Lo;0;L;;;;;N;;;;;
+A91D;KAYAH LI LETTER WA;Lo;0;L;;;;;N;;;;;
+A91E;KAYAH LI LETTER THA;Lo;0;L;;;;;N;;;;;
+A91F;KAYAH LI LETTER HA;Lo;0;L;;;;;N;;;;;
+A920;KAYAH LI LETTER VA;Lo;0;L;;;;;N;;;;;
+A921;KAYAH LI LETTER CA;Lo;0;L;;;;;N;;;;;
+A922;KAYAH LI LETTER A;Lo;0;L;;;;;N;;;;;
+A923;KAYAH LI LETTER OE;Lo;0;L;;;;;N;;;;;
+A924;KAYAH LI LETTER I;Lo;0;L;;;;;N;;;;;
+A925;KAYAH LI LETTER OO;Lo;0;L;;;;;N;;;;;
+A926;KAYAH LI VOWEL UE;Mn;0;NSM;;;;;N;;;;;
+A927;KAYAH LI VOWEL E;Mn;0;NSM;;;;;N;;;;;
+A928;KAYAH LI VOWEL U;Mn;0;NSM;;;;;N;;;;;
+A929;KAYAH LI VOWEL EE;Mn;0;NSM;;;;;N;;;;;
+A92A;KAYAH LI VOWEL O;Mn;0;NSM;;;;;N;;;;;
+A92B;KAYAH LI TONE PLOPHU;Mn;220;NSM;;;;;N;;;;;
+A92C;KAYAH LI TONE CALYA;Mn;220;NSM;;;;;N;;;;;
+A92D;KAYAH LI TONE CALYA PLOPHU;Mn;220;NSM;;;;;N;;;;;
+A92E;KAYAH LI SIGN CWI;Po;0;L;;;;;N;;;;;
+A92F;KAYAH LI SIGN SHYA;Po;0;L;;;;;N;;;;;
+A930;REJANG LETTER KA;Lo;0;L;;;;;N;;;;;
+A931;REJANG LETTER GA;Lo;0;L;;;;;N;;;;;
+A932;REJANG LETTER NGA;Lo;0;L;;;;;N;;;;;
+A933;REJANG LETTER TA;Lo;0;L;;;;;N;;;;;
+A934;REJANG LETTER DA;Lo;0;L;;;;;N;;;;;
+A935;REJANG LETTER NA;Lo;0;L;;;;;N;;;;;
+A936;REJANG LETTER PA;Lo;0;L;;;;;N;;;;;
+A937;REJANG LETTER BA;Lo;0;L;;;;;N;;;;;
+A938;REJANG LETTER MA;Lo;0;L;;;;;N;;;;;
+A939;REJANG LETTER CA;Lo;0;L;;;;;N;;;;;
+A93A;REJANG LETTER JA;Lo;0;L;;;;;N;;;;;
+A93B;REJANG LETTER NYA;Lo;0;L;;;;;N;;;;;
+A93C;REJANG LETTER SA;Lo;0;L;;;;;N;;;;;
+A93D;REJANG LETTER RA;Lo;0;L;;;;;N;;;;;
+A93E;REJANG LETTER LA;Lo;0;L;;;;;N;;;;;
+A93F;REJANG LETTER YA;Lo;0;L;;;;;N;;;;;
+A940;REJANG LETTER WA;Lo;0;L;;;;;N;;;;;
+A941;REJANG LETTER HA;Lo;0;L;;;;;N;;;;;
+A942;REJANG LETTER MBA;Lo;0;L;;;;;N;;;;;
+A943;REJANG LETTER NGGA;Lo;0;L;;;;;N;;;;;
+A944;REJANG LETTER NDA;Lo;0;L;;;;;N;;;;;
+A945;REJANG LETTER NYJA;Lo;0;L;;;;;N;;;;;
+A946;REJANG LETTER A;Lo;0;L;;;;;N;;;;;
+A947;REJANG VOWEL SIGN I;Mn;0;NSM;;;;;N;;;;;
+A948;REJANG VOWEL SIGN U;Mn;0;NSM;;;;;N;;;;;
+A949;REJANG VOWEL SIGN E;Mn;0;NSM;;;;;N;;;;;
+A94A;REJANG VOWEL SIGN AI;Mn;0;NSM;;;;;N;;;;;
+A94B;REJANG VOWEL SIGN O;Mn;0;NSM;;;;;N;;;;;
+A94C;REJANG VOWEL SIGN AU;Mn;0;NSM;;;;;N;;;;;
+A94D;REJANG VOWEL SIGN EU;Mn;0;NSM;;;;;N;;;;;
+A94E;REJANG VOWEL SIGN EA;Mn;0;NSM;;;;;N;;;;;
+A94F;REJANG CONSONANT SIGN NG;Mn;0;NSM;;;;;N;;;;;
+A950;REJANG CONSONANT SIGN N;Mn;0;NSM;;;;;N;;;;;
+A951;REJANG CONSONANT SIGN R;Mn;0;NSM;;;;;N;;;;;
+A952;REJANG CONSONANT SIGN H;Mc;0;L;;;;;N;;;;;
+A953;REJANG VIRAMA;Mc;9;L;;;;;N;;;;;
+A95F;REJANG SECTION MARK;Po;0;L;;;;;N;;;;;
+A960;HANGUL CHOSEONG TIKEUT-MIEUM;Lo;0;L;;;;;N;;;;;
+A961;HANGUL CHOSEONG TIKEUT-PIEUP;Lo;0;L;;;;;N;;;;;
+A962;HANGUL CHOSEONG TIKEUT-SIOS;Lo;0;L;;;;;N;;;;;
+A963;HANGUL CHOSEONG TIKEUT-CIEUC;Lo;0;L;;;;;N;;;;;
+A964;HANGUL CHOSEONG RIEUL-KIYEOK;Lo;0;L;;;;;N;;;;;
+A965;HANGUL CHOSEONG RIEUL-SSANGKIYEOK;Lo;0;L;;;;;N;;;;;
+A966;HANGUL CHOSEONG RIEUL-TIKEUT;Lo;0;L;;;;;N;;;;;
+A967;HANGUL CHOSEONG RIEUL-SSANGTIKEUT;Lo;0;L;;;;;N;;;;;
+A968;HANGUL CHOSEONG RIEUL-MIEUM;Lo;0;L;;;;;N;;;;;
+A969;HANGUL CHOSEONG RIEUL-PIEUP;Lo;0;L;;;;;N;;;;;
+A96A;HANGUL CHOSEONG RIEUL-SSANGPIEUP;Lo;0;L;;;;;N;;;;;
+A96B;HANGUL CHOSEONG RIEUL-KAPYEOUNPIEUP;Lo;0;L;;;;;N;;;;;
+A96C;HANGUL CHOSEONG RIEUL-SIOS;Lo;0;L;;;;;N;;;;;
+A96D;HANGUL CHOSEONG RIEUL-CIEUC;Lo;0;L;;;;;N;;;;;
+A96E;HANGUL CHOSEONG RIEUL-KHIEUKH;Lo;0;L;;;;;N;;;;;
+A96F;HANGUL CHOSEONG MIEUM-KIYEOK;Lo;0;L;;;;;N;;;;;
+A970;HANGUL CHOSEONG MIEUM-TIKEUT;Lo;0;L;;;;;N;;;;;
+A971;HANGUL CHOSEONG MIEUM-SIOS;Lo;0;L;;;;;N;;;;;
+A972;HANGUL CHOSEONG PIEUP-SIOS-THIEUTH;Lo;0;L;;;;;N;;;;;
+A973;HANGUL CHOSEONG PIEUP-KHIEUKH;Lo;0;L;;;;;N;;;;;
+A974;HANGUL CHOSEONG PIEUP-HIEUH;Lo;0;L;;;;;N;;;;;
+A975;HANGUL CHOSEONG SSANGSIOS-PIEUP;Lo;0;L;;;;;N;;;;;
+A976;HANGUL CHOSEONG IEUNG-RIEUL;Lo;0;L;;;;;N;;;;;
+A977;HANGUL CHOSEONG IEUNG-HIEUH;Lo;0;L;;;;;N;;;;;
+A978;HANGUL CHOSEONG SSANGCIEUC-HIEUH;Lo;0;L;;;;;N;;;;;
+A979;HANGUL CHOSEONG SSANGTHIEUTH;Lo;0;L;;;;;N;;;;;
+A97A;HANGUL CHOSEONG PHIEUPH-HIEUH;Lo;0;L;;;;;N;;;;;
+A97B;HANGUL CHOSEONG HIEUH-SIOS;Lo;0;L;;;;;N;;;;;
+A97C;HANGUL CHOSEONG SSANGYEORINHIEUH;Lo;0;L;;;;;N;;;;;
+A980;JAVANESE SIGN PANYANGGA;Mn;0;NSM;;;;;N;;;;;
+A981;JAVANESE SIGN CECAK;Mn;0;NSM;;;;;N;;;;;
+A982;JAVANESE SIGN LAYAR;Mn;0;NSM;;;;;N;;;;;
+A983;JAVANESE SIGN WIGNYAN;Mc;0;L;;;;;N;;;;;
+A984;JAVANESE LETTER A;Lo;0;L;;;;;N;;;;;
+A985;JAVANESE LETTER I KAWI;Lo;0;L;;;;;N;;;;;
+A986;JAVANESE LETTER I;Lo;0;L;;;;;N;;;;;
+A987;JAVANESE LETTER II;Lo;0;L;;;;;N;;;;;
+A988;JAVANESE LETTER U;Lo;0;L;;;;;N;;;;;
+A989;JAVANESE LETTER PA CEREK;Lo;0;L;;;;;N;;;;;
+A98A;JAVANESE LETTER NGA LELET;Lo;0;L;;;;;N;;;;;
+A98B;JAVANESE LETTER NGA LELET RASWADI;Lo;0;L;;;;;N;;;;;
+A98C;JAVANESE LETTER E;Lo;0;L;;;;;N;;;;;
+A98D;JAVANESE LETTER AI;Lo;0;L;;;;;N;;;;;
+A98E;JAVANESE LETTER O;Lo;0;L;;;;;N;;;;;
+A98F;JAVANESE LETTER KA;Lo;0;L;;;;;N;;;;;
+A990;JAVANESE LETTER KA SASAK;Lo;0;L;;;;;N;;;;;
+A991;JAVANESE LETTER KA MURDA;Lo;0;L;;;;;N;;;;;
+A992;JAVANESE LETTER GA;Lo;0;L;;;;;N;;;;;
+A993;JAVANESE LETTER GA MURDA;Lo;0;L;;;;;N;;;;;
+A994;JAVANESE LETTER NGA;Lo;0;L;;;;;N;;;;;
+A995;JAVANESE LETTER CA;Lo;0;L;;;;;N;;;;;
+A996;JAVANESE LETTER CA MURDA;Lo;0;L;;;;;N;;;;;
+A997;JAVANESE LETTER JA;Lo;0;L;;;;;N;;;;;
+A998;JAVANESE LETTER NYA MURDA;Lo;0;L;;;;;N;;;;;
+A999;JAVANESE LETTER JA MAHAPRANA;Lo;0;L;;;;;N;;;;;
+A99A;JAVANESE LETTER NYA;Lo;0;L;;;;;N;;;;;
+A99B;JAVANESE LETTER TTA;Lo;0;L;;;;;N;;;;;
+A99C;JAVANESE LETTER TTA MAHAPRANA;Lo;0;L;;;;;N;;;;;
+A99D;JAVANESE LETTER DDA;Lo;0;L;;;;;N;;;;;
+A99E;JAVANESE LETTER DDA MAHAPRANA;Lo;0;L;;;;;N;;;;;
+A99F;JAVANESE LETTER NA MURDA;Lo;0;L;;;;;N;;;;;
+A9A0;JAVANESE LETTER TA;Lo;0;L;;;;;N;;;;;
+A9A1;JAVANESE LETTER TA MURDA;Lo;0;L;;;;;N;;;;;
+A9A2;JAVANESE LETTER DA;Lo;0;L;;;;;N;;;;;
+A9A3;JAVANESE LETTER DA MAHAPRANA;Lo;0;L;;;;;N;;;;;
+A9A4;JAVANESE LETTER NA;Lo;0;L;;;;;N;;;;;
+A9A5;JAVANESE LETTER PA;Lo;0;L;;;;;N;;;;;
+A9A6;JAVANESE LETTER PA MURDA;Lo;0;L;;;;;N;;;;;
+A9A7;JAVANESE LETTER BA;Lo;0;L;;;;;N;;;;;
+A9A8;JAVANESE LETTER BA MURDA;Lo;0;L;;;;;N;;;;;
+A9A9;JAVANESE LETTER MA;Lo;0;L;;;;;N;;;;;
+A9AA;JAVANESE LETTER YA;Lo;0;L;;;;;N;;;;;
+A9AB;JAVANESE LETTER RA;Lo;0;L;;;;;N;;;;;
+A9AC;JAVANESE LETTER RA AGUNG;Lo;0;L;;;;;N;;;;;
+A9AD;JAVANESE LETTER LA;Lo;0;L;;;;;N;;;;;
+A9AE;JAVANESE LETTER WA;Lo;0;L;;;;;N;;;;;
+A9AF;JAVANESE LETTER SA MURDA;Lo;0;L;;;;;N;;;;;
+A9B0;JAVANESE LETTER SA MAHAPRANA;Lo;0;L;;;;;N;;;;;
+A9B1;JAVANESE LETTER SA;Lo;0;L;;;;;N;;;;;
+A9B2;JAVANESE LETTER HA;Lo;0;L;;;;;N;;;;;
+A9B3;JAVANESE SIGN CECAK TELU;Mn;7;NSM;;;;;N;;;;;
+A9B4;JAVANESE VOWEL SIGN TARUNG;Mc;0;L;;;;;N;;;;;
+A9B5;JAVANESE VOWEL SIGN TOLONG;Mc;0;L;;;;;N;;;;;
+A9B6;JAVANESE VOWEL SIGN WULU;Mn;0;NSM;;;;;N;;;;;
+A9B7;JAVANESE VOWEL SIGN WULU MELIK;Mn;0;NSM;;;;;N;;;;;
+A9B8;JAVANESE VOWEL SIGN SUKU;Mn;0;NSM;;;;;N;;;;;
+A9B9;JAVANESE VOWEL SIGN SUKU MENDUT;Mn;0;NSM;;;;;N;;;;;
+A9BA;JAVANESE VOWEL SIGN TALING;Mc;0;L;;;;;N;;;;;
+A9BB;JAVANESE VOWEL SIGN DIRGA MURE;Mc;0;L;;;;;N;;;;;
+A9BC;JAVANESE VOWEL SIGN PEPET;Mn;0;NSM;;;;;N;;;;;
+A9BD;JAVANESE CONSONANT SIGN KERET;Mc;0;L;;;;;N;;;;;
+A9BE;JAVANESE CONSONANT SIGN PENGKAL;Mc;0;L;;;;;N;;;;;
+A9BF;JAVANESE CONSONANT SIGN CAKRA;Mc;0;L;;;;;N;;;;;
+A9C0;JAVANESE PANGKON;Mc;9;L;;;;;N;;;;;
+A9C1;JAVANESE LEFT RERENGGAN;Po;0;L;;;;;N;;;;;
+A9C2;JAVANESE RIGHT RERENGGAN;Po;0;L;;;;;N;;;;;
+A9C3;JAVANESE PADA ANDAP;Po;0;L;;;;;N;;;;;
+A9C4;JAVANESE PADA MADYA;Po;0;L;;;;;N;;;;;
+A9C5;JAVANESE PADA LUHUR;Po;0;L;;;;;N;;;;;
+A9C6;JAVANESE PADA WINDU;Po;0;L;;;;;N;;;;;
+A9C7;JAVANESE PADA PANGKAT;Po;0;L;;;;;N;;;;;
+A9C8;JAVANESE PADA LINGSA;Po;0;L;;;;;N;;;;;
+A9C9;JAVANESE PADA LUNGSI;Po;0;L;;;;;N;;;;;
+A9CA;JAVANESE PADA ADEG;Po;0;L;;;;;N;;;;;
+A9CB;JAVANESE PADA ADEG ADEG;Po;0;L;;;;;N;;;;;
+A9CC;JAVANESE PADA PISELEH;Po;0;L;;;;;N;;;;;
+A9CD;JAVANESE TURNED PADA PISELEH;Po;0;L;;;;;N;;;;;
+A9CF;JAVANESE PANGRANGKEP;Lm;0;L;;;;;N;;;;;
+A9D0;JAVANESE DIGIT ZERO;Nd;0;L;;0;0;0;N;;;;;
+A9D1;JAVANESE DIGIT ONE;Nd;0;L;;1;1;1;N;;;;;
+A9D2;JAVANESE DIGIT TWO;Nd;0;L;;2;2;2;N;;;;;
+A9D3;JAVANESE DIGIT THREE;Nd;0;L;;3;3;3;N;;;;;
+A9D4;JAVANESE DIGIT FOUR;Nd;0;L;;4;4;4;N;;;;;
+A9D5;JAVANESE DIGIT FIVE;Nd;0;L;;5;5;5;N;;;;;
+A9D6;JAVANESE DIGIT SIX;Nd;0;L;;6;6;6;N;;;;;
+A9D7;JAVANESE DIGIT SEVEN;Nd;0;L;;7;7;7;N;;;;;
+A9D8;JAVANESE DIGIT EIGHT;Nd;0;L;;8;8;8;N;;;;;
+A9D9;JAVANESE DIGIT NINE;Nd;0;L;;9;9;9;N;;;;;
+A9DE;JAVANESE PADA TIRTA TUMETES;Po;0;L;;;;;N;;;;;
+A9DF;JAVANESE PADA ISEN-ISEN;Po;0;L;;;;;N;;;;;
+AA00;CHAM LETTER A;Lo;0;L;;;;;N;;;;;
+AA01;CHAM LETTER I;Lo;0;L;;;;;N;;;;;
+AA02;CHAM LETTER U;Lo;0;L;;;;;N;;;;;
+AA03;CHAM LETTER E;Lo;0;L;;;;;N;;;;;
+AA04;CHAM LETTER AI;Lo;0;L;;;;;N;;;;;
+AA05;CHAM LETTER O;Lo;0;L;;;;;N;;;;;
+AA06;CHAM LETTER KA;Lo;0;L;;;;;N;;;;;
+AA07;CHAM LETTER KHA;Lo;0;L;;;;;N;;;;;
+AA08;CHAM LETTER GA;Lo;0;L;;;;;N;;;;;
+AA09;CHAM LETTER GHA;Lo;0;L;;;;;N;;;;;
+AA0A;CHAM LETTER NGUE;Lo;0;L;;;;;N;;;;;
+AA0B;CHAM LETTER NGA;Lo;0;L;;;;;N;;;;;
+AA0C;CHAM LETTER CHA;Lo;0;L;;;;;N;;;;;
+AA0D;CHAM LETTER CHHA;Lo;0;L;;;;;N;;;;;
+AA0E;CHAM LETTER JA;Lo;0;L;;;;;N;;;;;
+AA0F;CHAM LETTER JHA;Lo;0;L;;;;;N;;;;;
+AA10;CHAM LETTER NHUE;Lo;0;L;;;;;N;;;;;
+AA11;CHAM LETTER NHA;Lo;0;L;;;;;N;;;;;
+AA12;CHAM LETTER NHJA;Lo;0;L;;;;;N;;;;;
+AA13;CHAM LETTER TA;Lo;0;L;;;;;N;;;;;
+AA14;CHAM LETTER THA;Lo;0;L;;;;;N;;;;;
+AA15;CHAM LETTER DA;Lo;0;L;;;;;N;;;;;
+AA16;CHAM LETTER DHA;Lo;0;L;;;;;N;;;;;
+AA17;CHAM LETTER NUE;Lo;0;L;;;;;N;;;;;
+AA18;CHAM LETTER NA;Lo;0;L;;;;;N;;;;;
+AA19;CHAM LETTER DDA;Lo;0;L;;;;;N;;;;;
+AA1A;CHAM LETTER PA;Lo;0;L;;;;;N;;;;;
+AA1B;CHAM LETTER PPA;Lo;0;L;;;;;N;;;;;
+AA1C;CHAM LETTER PHA;Lo;0;L;;;;;N;;;;;
+AA1D;CHAM LETTER BA;Lo;0;L;;;;;N;;;;;
+AA1E;CHAM LETTER BHA;Lo;0;L;;;;;N;;;;;
+AA1F;CHAM LETTER MUE;Lo;0;L;;;;;N;;;;;
+AA20;CHAM LETTER MA;Lo;0;L;;;;;N;;;;;
+AA21;CHAM LETTER BBA;Lo;0;L;;;;;N;;;;;
+AA22;CHAM LETTER YA;Lo;0;L;;;;;N;;;;;
+AA23;CHAM LETTER RA;Lo;0;L;;;;;N;;;;;
+AA24;CHAM LETTER LA;Lo;0;L;;;;;N;;;;;
+AA25;CHAM LETTER VA;Lo;0;L;;;;;N;;;;;
+AA26;CHAM LETTER SSA;Lo;0;L;;;;;N;;;;;
+AA27;CHAM LETTER SA;Lo;0;L;;;;;N;;;;;
+AA28;CHAM LETTER HA;Lo;0;L;;;;;N;;;;;
+AA29;CHAM VOWEL SIGN AA;Mn;0;NSM;;;;;N;;;;;
+AA2A;CHAM VOWEL SIGN I;Mn;0;NSM;;;;;N;;;;;
+AA2B;CHAM VOWEL SIGN II;Mn;0;NSM;;;;;N;;;;;
+AA2C;CHAM VOWEL SIGN EI;Mn;0;NSM;;;;;N;;;;;
+AA2D;CHAM VOWEL SIGN U;Mn;0;NSM;;;;;N;;;;;
+AA2E;CHAM VOWEL SIGN OE;Mn;0;NSM;;;;;N;;;;;
+AA2F;CHAM VOWEL SIGN O;Mc;0;L;;;;;N;;;;;
+AA30;CHAM VOWEL SIGN AI;Mc;0;L;;;;;N;;;;;
+AA31;CHAM VOWEL SIGN AU;Mn;0;NSM;;;;;N;;;;;
+AA32;CHAM VOWEL SIGN UE;Mn;0;NSM;;;;;N;;;;;
+AA33;CHAM CONSONANT SIGN YA;Mc;0;L;;;;;N;;;;;
+AA34;CHAM CONSONANT SIGN RA;Mc;0;L;;;;;N;;;;;
+AA35;CHAM CONSONANT SIGN LA;Mn;0;NSM;;;;;N;;;;;
+AA36;CHAM CONSONANT SIGN WA;Mn;0;NSM;;;;;N;;;;;
+AA40;CHAM LETTER FINAL K;Lo;0;L;;;;;N;;;;;
+AA41;CHAM LETTER FINAL G;Lo;0;L;;;;;N;;;;;
+AA42;CHAM LETTER FINAL NG;Lo;0;L;;;;;N;;;;;
+AA43;CHAM CONSONANT SIGN FINAL NG;Mn;0;NSM;;;;;N;;;;;
+AA44;CHAM LETTER FINAL CH;Lo;0;L;;;;;N;;;;;
+AA45;CHAM LETTER FINAL T;Lo;0;L;;;;;N;;;;;
+AA46;CHAM LETTER FINAL N;Lo;0;L;;;;;N;;;;;
+AA47;CHAM LETTER FINAL P;Lo;0;L;;;;;N;;;;;
+AA48;CHAM LETTER FINAL Y;Lo;0;L;;;;;N;;;;;
+AA49;CHAM LETTER FINAL R;Lo;0;L;;;;;N;;;;;
+AA4A;CHAM LETTER FINAL L;Lo;0;L;;;;;N;;;;;
+AA4B;CHAM LETTER FINAL SS;Lo;0;L;;;;;N;;;;;
+AA4C;CHAM CONSONANT SIGN FINAL M;Mn;0;NSM;;;;;N;;;;;
+AA4D;CHAM CONSONANT SIGN FINAL H;Mc;0;L;;;;;N;;;;;
+AA50;CHAM DIGIT ZERO;Nd;0;L;;0;0;0;N;;;;;
+AA51;CHAM DIGIT ONE;Nd;0;L;;1;1;1;N;;;;;
+AA52;CHAM DIGIT TWO;Nd;0;L;;2;2;2;N;;;;;
+AA53;CHAM DIGIT THREE;Nd;0;L;;3;3;3;N;;;;;
+AA54;CHAM DIGIT FOUR;Nd;0;L;;4;4;4;N;;;;;
+AA55;CHAM DIGIT FIVE;Nd;0;L;;5;5;5;N;;;;;
+AA56;CHAM DIGIT SIX;Nd;0;L;;6;6;6;N;;;;;
+AA57;CHAM DIGIT SEVEN;Nd;0;L;;7;7;7;N;;;;;
+AA58;CHAM DIGIT EIGHT;Nd;0;L;;8;8;8;N;;;;;
+AA59;CHAM DIGIT NINE;Nd;0;L;;9;9;9;N;;;;;
+AA5C;CHAM PUNCTUATION SPIRAL;Po;0;L;;;;;N;;;;;
+AA5D;CHAM PUNCTUATION DANDA;Po;0;L;;;;;N;;;;;
+AA5E;CHAM PUNCTUATION DOUBLE DANDA;Po;0;L;;;;;N;;;;;
+AA5F;CHAM PUNCTUATION TRIPLE DANDA;Po;0;L;;;;;N;;;;;
+AA60;MYANMAR LETTER KHAMTI GA;Lo;0;L;;;;;N;;;;;
+AA61;MYANMAR LETTER KHAMTI CA;Lo;0;L;;;;;N;;;;;
+AA62;MYANMAR LETTER KHAMTI CHA;Lo;0;L;;;;;N;;;;;
+AA63;MYANMAR LETTER KHAMTI JA;Lo;0;L;;;;;N;;;;;
+AA64;MYANMAR LETTER KHAMTI JHA;Lo;0;L;;;;;N;;;;;
+AA65;MYANMAR LETTER KHAMTI NYA;Lo;0;L;;;;;N;;;;;
+AA66;MYANMAR LETTER KHAMTI TTA;Lo;0;L;;;;;N;;;;;
+AA67;MYANMAR LETTER KHAMTI TTHA;Lo;0;L;;;;;N;;;;;
+AA68;MYANMAR LETTER KHAMTI DDA;Lo;0;L;;;;;N;;;;;
+AA69;MYANMAR LETTER KHAMTI DDHA;Lo;0;L;;;;;N;;;;;
+AA6A;MYANMAR LETTER KHAMTI DHA;Lo;0;L;;;;;N;;;;;
+AA6B;MYANMAR LETTER KHAMTI NA;Lo;0;L;;;;;N;;;;;
+AA6C;MYANMAR LETTER KHAMTI SA;Lo;0;L;;;;;N;;;;;
+AA6D;MYANMAR LETTER KHAMTI HA;Lo;0;L;;;;;N;;;;;
+AA6E;MYANMAR LETTER KHAMTI HHA;Lo;0;L;;;;;N;;;;;
+AA6F;MYANMAR LETTER KHAMTI FA;Lo;0;L;;;;;N;;;;;
+AA70;MYANMAR MODIFIER LETTER KHAMTI REDUPLICATION;Lm;0;L;;;;;N;;;;;
+AA71;MYANMAR LETTER KHAMTI XA;Lo;0;L;;;;;N;;;;;
+AA72;MYANMAR LETTER KHAMTI ZA;Lo;0;L;;;;;N;;;;;
+AA73;MYANMAR LETTER KHAMTI RA;Lo;0;L;;;;;N;;;;;
+AA74;MYANMAR LOGOGRAM KHAMTI OAY;Lo;0;L;;;;;N;;;;;
+AA75;MYANMAR LOGOGRAM KHAMTI QN;Lo;0;L;;;;;N;;;;;
+AA76;MYANMAR LOGOGRAM KHAMTI HM;Lo;0;L;;;;;N;;;;;
+AA77;MYANMAR SYMBOL AITON EXCLAMATION;So;0;L;;;;;N;;;;;
+AA78;MYANMAR SYMBOL AITON ONE;So;0;L;;;;;N;;;;;
+AA79;MYANMAR SYMBOL AITON TWO;So;0;L;;;;;N;;;;;
+AA7A;MYANMAR LETTER AITON RA;Lo;0;L;;;;;N;;;;;
+AA7B;MYANMAR SIGN PAO KAREN TONE;Mc;0;L;;;;;N;;;;;
+AA80;TAI VIET LETTER LOW KO;Lo;0;L;;;;;N;;;;;
+AA81;TAI VIET LETTER HIGH KO;Lo;0;L;;;;;N;;;;;
+AA82;TAI VIET LETTER LOW KHO;Lo;0;L;;;;;N;;;;;
+AA83;TAI VIET LETTER HIGH KHO;Lo;0;L;;;;;N;;;;;
+AA84;TAI VIET LETTER LOW KHHO;Lo;0;L;;;;;N;;;;;
+AA85;TAI VIET LETTER HIGH KHHO;Lo;0;L;;;;;N;;;;;
+AA86;TAI VIET LETTER LOW GO;Lo;0;L;;;;;N;;;;;
+AA87;TAI VIET LETTER HIGH GO;Lo;0;L;;;;;N;;;;;
+AA88;TAI VIET LETTER LOW NGO;Lo;0;L;;;;;N;;;;;
+AA89;TAI VIET LETTER HIGH NGO;Lo;0;L;;;;;N;;;;;
+AA8A;TAI VIET LETTER LOW CO;Lo;0;L;;;;;N;;;;;
+AA8B;TAI VIET LETTER HIGH CO;Lo;0;L;;;;;N;;;;;
+AA8C;TAI VIET LETTER LOW CHO;Lo;0;L;;;;;N;;;;;
+AA8D;TAI VIET LETTER HIGH CHO;Lo;0;L;;;;;N;;;;;
+AA8E;TAI VIET LETTER LOW SO;Lo;0;L;;;;;N;;;;;
+AA8F;TAI VIET LETTER HIGH SO;Lo;0;L;;;;;N;;;;;
+AA90;TAI VIET LETTER LOW NYO;Lo;0;L;;;;;N;;;;;
+AA91;TAI VIET LETTER HIGH NYO;Lo;0;L;;;;;N;;;;;
+AA92;TAI VIET LETTER LOW DO;Lo;0;L;;;;;N;;;;;
+AA93;TAI VIET LETTER HIGH DO;Lo;0;L;;;;;N;;;;;
+AA94;TAI VIET LETTER LOW TO;Lo;0;L;;;;;N;;;;;
+AA95;TAI VIET LETTER HIGH TO;Lo;0;L;;;;;N;;;;;
+AA96;TAI VIET LETTER LOW THO;Lo;0;L;;;;;N;;;;;
+AA97;TAI VIET LETTER HIGH THO;Lo;0;L;;;;;N;;;;;
+AA98;TAI VIET LETTER LOW NO;Lo;0;L;;;;;N;;;;;
+AA99;TAI VIET LETTER HIGH NO;Lo;0;L;;;;;N;;;;;
+AA9A;TAI VIET LETTER LOW BO;Lo;0;L;;;;;N;;;;;
+AA9B;TAI VIET LETTER HIGH BO;Lo;0;L;;;;;N;;;;;
+AA9C;TAI VIET LETTER LOW PO;Lo;0;L;;;;;N;;;;;
+AA9D;TAI VIET LETTER HIGH PO;Lo;0;L;;;;;N;;;;;
+AA9E;TAI VIET LETTER LOW PHO;Lo;0;L;;;;;N;;;;;
+AA9F;TAI VIET LETTER HIGH PHO;Lo;0;L;;;;;N;;;;;
+AAA0;TAI VIET LETTER LOW FO;Lo;0;L;;;;;N;;;;;
+AAA1;TAI VIET LETTER HIGH FO;Lo;0;L;;;;;N;;;;;
+AAA2;TAI VIET LETTER LOW MO;Lo;0;L;;;;;N;;;;;
+AAA3;TAI VIET LETTER HIGH MO;Lo;0;L;;;;;N;;;;;
+AAA4;TAI VIET LETTER LOW YO;Lo;0;L;;;;;N;;;;;
+AAA5;TAI VIET LETTER HIGH YO;Lo;0;L;;;;;N;;;;;
+AAA6;TAI VIET LETTER LOW RO;Lo;0;L;;;;;N;;;;;
+AAA7;TAI VIET LETTER HIGH RO;Lo;0;L;;;;;N;;;;;
+AAA8;TAI VIET LETTER LOW LO;Lo;0;L;;;;;N;;;;;
+AAA9;TAI VIET LETTER HIGH LO;Lo;0;L;;;;;N;;;;;
+AAAA;TAI VIET LETTER LOW VO;Lo;0;L;;;;;N;;;;;
+AAAB;TAI VIET LETTER HIGH VO;Lo;0;L;;;;;N;;;;;
+AAAC;TAI VIET LETTER LOW HO;Lo;0;L;;;;;N;;;;;
+AAAD;TAI VIET LETTER HIGH HO;Lo;0;L;;;;;N;;;;;
+AAAE;TAI VIET LETTER LOW O;Lo;0;L;;;;;N;;;;;
+AAAF;TAI VIET LETTER HIGH O;Lo;0;L;;;;;N;;;;;
+AAB0;TAI VIET MAI KANG;Mn;230;NSM;;;;;N;;;;;
+AAB1;TAI VIET VOWEL AA;Lo;0;L;;;;;N;;;;;
+AAB2;TAI VIET VOWEL I;Mn;230;NSM;;;;;N;;;;;
+AAB3;TAI VIET VOWEL UE;Mn;230;NSM;;;;;N;;;;;
+AAB4;TAI VIET VOWEL U;Mn;220;NSM;;;;;N;;;;;
+AAB5;TAI VIET VOWEL E;Lo;0;L;;;;;N;;;;;
+AAB6;TAI VIET VOWEL O;Lo;0;L;;;;;N;;;;;
+AAB7;TAI VIET MAI KHIT;Mn;230;NSM;;;;;N;;;;;
+AAB8;TAI VIET VOWEL IA;Mn;230;NSM;;;;;N;;;;;
+AAB9;TAI VIET VOWEL UEA;Lo;0;L;;;;;N;;;;;
+AABA;TAI VIET VOWEL UA;Lo;0;L;;;;;N;;;;;
+AABB;TAI VIET VOWEL AUE;Lo;0;L;;;;;N;;;;;
+AABC;TAI VIET VOWEL AY;Lo;0;L;;;;;N;;;;;
+AABD;TAI VIET VOWEL AN;Lo;0;L;;;;;N;;;;;
+AABE;TAI VIET VOWEL AM;Mn;230;NSM;;;;;N;;;;;
+AABF;TAI VIET TONE MAI EK;Mn;230;NSM;;;;;N;;;;;
+AAC0;TAI VIET TONE MAI NUENG;Lo;0;L;;;;;N;;;;;
+AAC1;TAI VIET TONE MAI THO;Mn;230;NSM;;;;;N;;;;;
+AAC2;TAI VIET TONE MAI SONG;Lo;0;L;;;;;N;;;;;
+AADB;TAI VIET SYMBOL KON;Lo;0;L;;;;;N;;;;;
+AADC;TAI VIET SYMBOL NUENG;Lo;0;L;;;;;N;;;;;
+AADD;TAI VIET SYMBOL SAM;Lm;0;L;;;;;N;;;;;
+AADE;TAI VIET SYMBOL HO HOI;Po;0;L;;;;;N;;;;;
+AADF;TAI VIET SYMBOL KOI KOI;Po;0;L;;;;;N;;;;;
+AAE0;MEETEI MAYEK LETTER E;Lo;0;L;;;;;N;;;;;
+AAE1;MEETEI MAYEK LETTER O;Lo;0;L;;;;;N;;;;;
+AAE2;MEETEI MAYEK LETTER CHA;Lo;0;L;;;;;N;;;;;
+AAE3;MEETEI MAYEK LETTER NYA;Lo;0;L;;;;;N;;;;;
+AAE4;MEETEI MAYEK LETTER TTA;Lo;0;L;;;;;N;;;;;
+AAE5;MEETEI MAYEK LETTER TTHA;Lo;0;L;;;;;N;;;;;
+AAE6;MEETEI MAYEK LETTER DDA;Lo;0;L;;;;;N;;;;;
+AAE7;MEETEI MAYEK LETTER DDHA;Lo;0;L;;;;;N;;;;;
+AAE8;MEETEI MAYEK LETTER NNA;Lo;0;L;;;;;N;;;;;
+AAE9;MEETEI MAYEK LETTER SHA;Lo;0;L;;;;;N;;;;;
+AAEA;MEETEI MAYEK LETTER SSA;Lo;0;L;;;;;N;;;;;
+AAEB;MEETEI MAYEK VOWEL SIGN II;Mc;0;L;;;;;N;;;;;
+AAEC;MEETEI MAYEK VOWEL SIGN UU;Mn;0;NSM;;;;;N;;;;;
+AAED;MEETEI MAYEK VOWEL SIGN AAI;Mn;0;NSM;;;;;N;;;;;
+AAEE;MEETEI MAYEK VOWEL SIGN AU;Mc;0;L;;;;;N;;;;;
+AAEF;MEETEI MAYEK VOWEL SIGN AAU;Mc;0;L;;;;;N;;;;;
+AAF0;MEETEI MAYEK CHEIKHAN;Po;0;L;;;;;N;;;;;
+AAF1;MEETEI MAYEK AHANG KHUDAM;Po;0;L;;;;;N;;;;;
+AAF2;MEETEI MAYEK ANJI;Lo;0;L;;;;;N;;;;;
+AAF3;MEETEI MAYEK SYLLABLE REPETITION MARK;Lm;0;L;;;;;N;;;;;
+AAF4;MEETEI MAYEK WORD REPETITION MARK;Lm;0;L;;;;;N;;;;;
+AAF5;MEETEI MAYEK VOWEL SIGN VISARGA;Mc;0;L;;;;;N;;;;;
+AAF6;MEETEI MAYEK VIRAMA;Mn;9;NSM;;;;;N;;;;;
+AB01;ETHIOPIC SYLLABLE TTHU;Lo;0;L;;;;;N;;;;;
+AB02;ETHIOPIC SYLLABLE TTHI;Lo;0;L;;;;;N;;;;;
+AB03;ETHIOPIC SYLLABLE TTHAA;Lo;0;L;;;;;N;;;;;
+AB04;ETHIOPIC SYLLABLE TTHEE;Lo;0;L;;;;;N;;;;;
+AB05;ETHIOPIC SYLLABLE TTHE;Lo;0;L;;;;;N;;;;;
+AB06;ETHIOPIC SYLLABLE TTHO;Lo;0;L;;;;;N;;;;;
+AB09;ETHIOPIC SYLLABLE DDHU;Lo;0;L;;;;;N;;;;;
+AB0A;ETHIOPIC SYLLABLE DDHI;Lo;0;L;;;;;N;;;;;
+AB0B;ETHIOPIC SYLLABLE DDHAA;Lo;0;L;;;;;N;;;;;
+AB0C;ETHIOPIC SYLLABLE DDHEE;Lo;0;L;;;;;N;;;;;
+AB0D;ETHIOPIC SYLLABLE DDHE;Lo;0;L;;;;;N;;;;;
+AB0E;ETHIOPIC SYLLABLE DDHO;Lo;0;L;;;;;N;;;;;
+AB11;ETHIOPIC SYLLABLE DZU;Lo;0;L;;;;;N;;;;;
+AB12;ETHIOPIC SYLLABLE DZI;Lo;0;L;;;;;N;;;;;
+AB13;ETHIOPIC SYLLABLE DZAA;Lo;0;L;;;;;N;;;;;
+AB14;ETHIOPIC SYLLABLE DZEE;Lo;0;L;;;;;N;;;;;
+AB15;ETHIOPIC SYLLABLE DZE;Lo;0;L;;;;;N;;;;;
+AB16;ETHIOPIC SYLLABLE DZO;Lo;0;L;;;;;N;;;;;
+AB20;ETHIOPIC SYLLABLE CCHHA;Lo;0;L;;;;;N;;;;;
+AB21;ETHIOPIC SYLLABLE CCHHU;Lo;0;L;;;;;N;;;;;
+AB22;ETHIOPIC SYLLABLE CCHHI;Lo;0;L;;;;;N;;;;;
+AB23;ETHIOPIC SYLLABLE CCHHAA;Lo;0;L;;;;;N;;;;;
+AB24;ETHIOPIC SYLLABLE CCHHEE;Lo;0;L;;;;;N;;;;;
+AB25;ETHIOPIC SYLLABLE CCHHE;Lo;0;L;;;;;N;;;;;
+AB26;ETHIOPIC SYLLABLE CCHHO;Lo;0;L;;;;;N;;;;;
+AB28;ETHIOPIC SYLLABLE BBA;Lo;0;L;;;;;N;;;;;
+AB29;ETHIOPIC SYLLABLE BBU;Lo;0;L;;;;;N;;;;;
+AB2A;ETHIOPIC SYLLABLE BBI;Lo;0;L;;;;;N;;;;;
+AB2B;ETHIOPIC SYLLABLE BBAA;Lo;0;L;;;;;N;;;;;
+AB2C;ETHIOPIC SYLLABLE BBEE;Lo;0;L;;;;;N;;;;;
+AB2D;ETHIOPIC SYLLABLE BBE;Lo;0;L;;;;;N;;;;;
+AB2E;ETHIOPIC SYLLABLE BBO;Lo;0;L;;;;;N;;;;;
+ABC0;MEETEI MAYEK LETTER KOK;Lo;0;L;;;;;N;;;;;
+ABC1;MEETEI MAYEK LETTER SAM;Lo;0;L;;;;;N;;;;;
+ABC2;MEETEI MAYEK LETTER LAI;Lo;0;L;;;;;N;;;;;
+ABC3;MEETEI MAYEK LETTER MIT;Lo;0;L;;;;;N;;;;;
+ABC4;MEETEI MAYEK LETTER PA;Lo;0;L;;;;;N;;;;;
+ABC5;MEETEI MAYEK LETTER NA;Lo;0;L;;;;;N;;;;;
+ABC6;MEETEI MAYEK LETTER CHIL;Lo;0;L;;;;;N;;;;;
+ABC7;MEETEI MAYEK LETTER TIL;Lo;0;L;;;;;N;;;;;
+ABC8;MEETEI MAYEK LETTER KHOU;Lo;0;L;;;;;N;;;;;
+ABC9;MEETEI MAYEK LETTER NGOU;Lo;0;L;;;;;N;;;;;
+ABCA;MEETEI MAYEK LETTER THOU;Lo;0;L;;;;;N;;;;;
+ABCB;MEETEI MAYEK LETTER WAI;Lo;0;L;;;;;N;;;;;
+ABCC;MEETEI MAYEK LETTER YANG;Lo;0;L;;;;;N;;;;;
+ABCD;MEETEI MAYEK LETTER HUK;Lo;0;L;;;;;N;;;;;
+ABCE;MEETEI MAYEK LETTER UN;Lo;0;L;;;;;N;;;;;
+ABCF;MEETEI MAYEK LETTER I;Lo;0;L;;;;;N;;;;;
+ABD0;MEETEI MAYEK LETTER PHAM;Lo;0;L;;;;;N;;;;;
+ABD1;MEETEI MAYEK LETTER ATIYA;Lo;0;L;;;;;N;;;;;
+ABD2;MEETEI MAYEK LETTER GOK;Lo;0;L;;;;;N;;;;;
+ABD3;MEETEI MAYEK LETTER JHAM;Lo;0;L;;;;;N;;;;;
+ABD4;MEETEI MAYEK LETTER RAI;Lo;0;L;;;;;N;;;;;
+ABD5;MEETEI MAYEK LETTER BA;Lo;0;L;;;;;N;;;;;
+ABD6;MEETEI MAYEK LETTER JIL;Lo;0;L;;;;;N;;;;;
+ABD7;MEETEI MAYEK LETTER DIL;Lo;0;L;;;;;N;;;;;
+ABD8;MEETEI MAYEK LETTER GHOU;Lo;0;L;;;;;N;;;;;
+ABD9;MEETEI MAYEK LETTER DHOU;Lo;0;L;;;;;N;;;;;
+ABDA;MEETEI MAYEK LETTER BHAM;Lo;0;L;;;;;N;;;;;
+ABDB;MEETEI MAYEK LETTER KOK LONSUM;Lo;0;L;;;;;N;;;;;
+ABDC;MEETEI MAYEK LETTER LAI LONSUM;Lo;0;L;;;;;N;;;;;
+ABDD;MEETEI MAYEK LETTER MIT LONSUM;Lo;0;L;;;;;N;;;;;
+ABDE;MEETEI MAYEK LETTER PA LONSUM;Lo;0;L;;;;;N;;;;;
+ABDF;MEETEI MAYEK LETTER NA LONSUM;Lo;0;L;;;;;N;;;;;
+ABE0;MEETEI MAYEK LETTER TIL LONSUM;Lo;0;L;;;;;N;;;;;
+ABE1;MEETEI MAYEK LETTER NGOU LONSUM;Lo;0;L;;;;;N;;;;;
+ABE2;MEETEI MAYEK LETTER I LONSUM;Lo;0;L;;;;;N;;;;;
+ABE3;MEETEI MAYEK VOWEL SIGN ONAP;Mc;0;L;;;;;N;;;;;
+ABE4;MEETEI MAYEK VOWEL SIGN INAP;Mc;0;L;;;;;N;;;;;
+ABE5;MEETEI MAYEK VOWEL SIGN ANAP;Mn;0;NSM;;;;;N;;;;;
+ABE6;MEETEI MAYEK VOWEL SIGN YENAP;Mc;0;L;;;;;N;;;;;
+ABE7;MEETEI MAYEK VOWEL SIGN SOUNAP;Mc;0;L;;;;;N;;;;;
+ABE8;MEETEI MAYEK VOWEL SIGN UNAP;Mn;0;NSM;;;;;N;;;;;
+ABE9;MEETEI MAYEK VOWEL SIGN CHEINAP;Mc;0;L;;;;;N;;;;;
+ABEA;MEETEI MAYEK VOWEL SIGN NUNG;Mc;0;L;;;;;N;;;;;
+ABEB;MEETEI MAYEK CHEIKHEI;Po;0;L;;;;;N;;;;;
+ABEC;MEETEI MAYEK LUM IYEK;Mc;0;L;;;;;N;;;;;
+ABED;MEETEI MAYEK APUN IYEK;Mn;9;NSM;;;;;N;;;;;
+ABF0;MEETEI MAYEK DIGIT ZERO;Nd;0;L;;0;0;0;N;;;;;
+ABF1;MEETEI MAYEK DIGIT ONE;Nd;0;L;;1;1;1;N;;;;;
+ABF2;MEETEI MAYEK DIGIT TWO;Nd;0;L;;2;2;2;N;;;;;
+ABF3;MEETEI MAYEK DIGIT THREE;Nd;0;L;;3;3;3;N;;;;;
+ABF4;MEETEI MAYEK DIGIT FOUR;Nd;0;L;;4;4;4;N;;;;;
+ABF5;MEETEI MAYEK DIGIT FIVE;Nd;0;L;;5;5;5;N;;;;;
+ABF6;MEETEI MAYEK DIGIT SIX;Nd;0;L;;6;6;6;N;;;;;
+ABF7;MEETEI MAYEK DIGIT SEVEN;Nd;0;L;;7;7;7;N;;;;;
+ABF8;MEETEI MAYEK DIGIT EIGHT;Nd;0;L;;8;8;8;N;;;;;
+ABF9;MEETEI MAYEK DIGIT NINE;Nd;0;L;;9;9;9;N;;;;;
+AC00;<Hangul Syllable, First>;Lo;0;L;;;;;N;;;;;
+D7A3;<Hangul Syllable, Last>;Lo;0;L;;;;;N;;;;;
+D7B0;HANGUL JUNGSEONG O-YEO;Lo;0;L;;;;;N;;;;;
+D7B1;HANGUL JUNGSEONG O-O-I;Lo;0;L;;;;;N;;;;;
+D7B2;HANGUL JUNGSEONG YO-A;Lo;0;L;;;;;N;;;;;
+D7B3;HANGUL JUNGSEONG YO-AE;Lo;0;L;;;;;N;;;;;
+D7B4;HANGUL JUNGSEONG YO-EO;Lo;0;L;;;;;N;;;;;
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+FAA4;CJK COMPATIBILITY IDEOGRAPH-FAA4;Lo;0;L;761D;;;;N;;;;;
+FAA5;CJK COMPATIBILITY IDEOGRAPH-FAA5;Lo;0;L;761F;;;;N;;;;;
+FAA6;CJK COMPATIBILITY IDEOGRAPH-FAA6;Lo;0;L;76CA;;;;N;;;;;
+FAA7;CJK COMPATIBILITY IDEOGRAPH-FAA7;Lo;0;L;76DB;;;;N;;;;;
+FAA8;CJK COMPATIBILITY IDEOGRAPH-FAA8;Lo;0;L;76F4;;;;N;;;;;
+FAA9;CJK COMPATIBILITY IDEOGRAPH-FAA9;Lo;0;L;774A;;;;N;;;;;
+FAAA;CJK COMPATIBILITY IDEOGRAPH-FAAA;Lo;0;L;7740;;;;N;;;;;
+FAAB;CJK COMPATIBILITY IDEOGRAPH-FAAB;Lo;0;L;78CC;;;;N;;;;;
+FAAC;CJK COMPATIBILITY IDEOGRAPH-FAAC;Lo;0;L;7AB1;;;;N;;;;;
+FAAD;CJK COMPATIBILITY IDEOGRAPH-FAAD;Lo;0;L;7BC0;;;;N;;;;;
+FAAE;CJK COMPATIBILITY IDEOGRAPH-FAAE;Lo;0;L;7C7B;;;;N;;;;;
+FAAF;CJK COMPATIBILITY IDEOGRAPH-FAAF;Lo;0;L;7D5B;;;;N;;;;;
+FAB0;CJK COMPATIBILITY IDEOGRAPH-FAB0;Lo;0;L;7DF4;;;;N;;;;;
+FAB1;CJK COMPATIBILITY IDEOGRAPH-FAB1;Lo;0;L;7F3E;;;;N;;;;;
+FAB2;CJK COMPATIBILITY IDEOGRAPH-FAB2;Lo;0;L;8005;;;;N;;;;;
+FAB3;CJK COMPATIBILITY IDEOGRAPH-FAB3;Lo;0;L;8352;;;;N;;;;;
+FAB4;CJK COMPATIBILITY IDEOGRAPH-FAB4;Lo;0;L;83EF;;;;N;;;;;
+FAB5;CJK COMPATIBILITY IDEOGRAPH-FAB5;Lo;0;L;8779;;;;N;;;;;
+FAB6;CJK COMPATIBILITY IDEOGRAPH-FAB6;Lo;0;L;8941;;;;N;;;;;
+FAB7;CJK COMPATIBILITY IDEOGRAPH-FAB7;Lo;0;L;8986;;;;N;;;;;
+FAB8;CJK COMPATIBILITY IDEOGRAPH-FAB8;Lo;0;L;8996;;;;N;;;;;
+FAB9;CJK COMPATIBILITY IDEOGRAPH-FAB9;Lo;0;L;8ABF;;;;N;;;;;
+FABA;CJK COMPATIBILITY IDEOGRAPH-FABA;Lo;0;L;8AF8;;;;N;;;;;
+FABB;CJK COMPATIBILITY IDEOGRAPH-FABB;Lo;0;L;8ACB;;;;N;;;;;
+FABC;CJK COMPATIBILITY IDEOGRAPH-FABC;Lo;0;L;8B01;;;;N;;;;;
+FABD;CJK COMPATIBILITY IDEOGRAPH-FABD;Lo;0;L;8AFE;;;;N;;;;;
+FABE;CJK COMPATIBILITY IDEOGRAPH-FABE;Lo;0;L;8AED;;;;N;;;;;
+FABF;CJK COMPATIBILITY IDEOGRAPH-FABF;Lo;0;L;8B39;;;;N;;;;;
+FAC0;CJK COMPATIBILITY IDEOGRAPH-FAC0;Lo;0;L;8B8A;;;;N;;;;;
+FAC1;CJK COMPATIBILITY IDEOGRAPH-FAC1;Lo;0;L;8D08;;;;N;;;;;
+FAC2;CJK COMPATIBILITY IDEOGRAPH-FAC2;Lo;0;L;8F38;;;;N;;;;;
+FAC3;CJK COMPATIBILITY IDEOGRAPH-FAC3;Lo;0;L;9072;;;;N;;;;;
+FAC4;CJK COMPATIBILITY IDEOGRAPH-FAC4;Lo;0;L;9199;;;;N;;;;;
+FAC5;CJK COMPATIBILITY IDEOGRAPH-FAC5;Lo;0;L;9276;;;;N;;;;;
+FAC6;CJK COMPATIBILITY IDEOGRAPH-FAC6;Lo;0;L;967C;;;;N;;;;;
+FAC7;CJK COMPATIBILITY IDEOGRAPH-FAC7;Lo;0;L;96E3;;;;N;;;;;
+FAC8;CJK COMPATIBILITY IDEOGRAPH-FAC8;Lo;0;L;9756;;;;N;;;;;
+FAC9;CJK COMPATIBILITY IDEOGRAPH-FAC9;Lo;0;L;97DB;;;;N;;;;;
+FACA;CJK COMPATIBILITY IDEOGRAPH-FACA;Lo;0;L;97FF;;;;N;;;;;
+FACB;CJK COMPATIBILITY IDEOGRAPH-FACB;Lo;0;L;980B;;;;N;;;;;
+FACC;CJK COMPATIBILITY IDEOGRAPH-FACC;Lo;0;L;983B;;;;N;;;;;
+FACD;CJK COMPATIBILITY IDEOGRAPH-FACD;Lo;0;L;9B12;;;;N;;;;;
+FACE;CJK COMPATIBILITY IDEOGRAPH-FACE;Lo;0;L;9F9C;;;;N;;;;;
+FACF;CJK COMPATIBILITY IDEOGRAPH-FACF;Lo;0;L;2284A;;;;N;;;;;
+FAD0;CJK COMPATIBILITY IDEOGRAPH-FAD0;Lo;0;L;22844;;;;N;;;;;
+FAD1;CJK COMPATIBILITY IDEOGRAPH-FAD1;Lo;0;L;233D5;;;;N;;;;;
+FAD2;CJK COMPATIBILITY IDEOGRAPH-FAD2;Lo;0;L;3B9D;;;;N;;;;;
+FAD3;CJK COMPATIBILITY IDEOGRAPH-FAD3;Lo;0;L;4018;;;;N;;;;;
+FAD4;CJK COMPATIBILITY IDEOGRAPH-FAD4;Lo;0;L;4039;;;;N;;;;;
+FAD5;CJK COMPATIBILITY IDEOGRAPH-FAD5;Lo;0;L;25249;;;;N;;;;;
+FAD6;CJK COMPATIBILITY IDEOGRAPH-FAD6;Lo;0;L;25CD0;;;;N;;;;;
+FAD7;CJK COMPATIBILITY IDEOGRAPH-FAD7;Lo;0;L;27ED3;;;;N;;;;;
+FAD8;CJK COMPATIBILITY IDEOGRAPH-FAD8;Lo;0;L;9F43;;;;N;;;;;
+FAD9;CJK COMPATIBILITY IDEOGRAPH-FAD9;Lo;0;L;9F8E;;;;N;;;;;
+FB00;LATIN SMALL LIGATURE FF;Ll;0;L;<compat> 0066 0066;;;;N;;;;;
+FB01;LATIN SMALL LIGATURE FI;Ll;0;L;<compat> 0066 0069;;;;N;;;;;
+FB02;LATIN SMALL LIGATURE FL;Ll;0;L;<compat> 0066 006C;;;;N;;;;;
+FB03;LATIN SMALL LIGATURE FFI;Ll;0;L;<compat> 0066 0066 0069;;;;N;;;;;
+FB04;LATIN SMALL LIGATURE FFL;Ll;0;L;<compat> 0066 0066 006C;;;;N;;;;;
+FB05;LATIN SMALL LIGATURE LONG S T;Ll;0;L;<compat> 017F 0074;;;;N;;;;;
+FB06;LATIN SMALL LIGATURE ST;Ll;0;L;<compat> 0073 0074;;;;N;;;;;
+FB13;ARMENIAN SMALL LIGATURE MEN NOW;Ll;0;L;<compat> 0574 0576;;;;N;;;;;
+FB14;ARMENIAN SMALL LIGATURE MEN ECH;Ll;0;L;<compat> 0574 0565;;;;N;;;;;
+FB15;ARMENIAN SMALL LIGATURE MEN INI;Ll;0;L;<compat> 0574 056B;;;;N;;;;;
+FB16;ARMENIAN SMALL LIGATURE VEW NOW;Ll;0;L;<compat> 057E 0576;;;;N;;;;;
+FB17;ARMENIAN SMALL LIGATURE MEN XEH;Ll;0;L;<compat> 0574 056D;;;;N;;;;;
+FB1D;HEBREW LETTER YOD WITH HIRIQ;Lo;0;R;05D9 05B4;;;;N;;;;;
+FB1E;HEBREW POINT JUDEO-SPANISH VARIKA;Mn;26;NSM;;;;;N;HEBREW POINT VARIKA;;;;
+FB1F;HEBREW LIGATURE YIDDISH YOD YOD PATAH;Lo;0;R;05F2 05B7;;;;N;;;;;
+FB20;HEBREW LETTER ALTERNATIVE AYIN;Lo;0;R;<font> 05E2;;;;N;;;;;
+FB21;HEBREW LETTER WIDE ALEF;Lo;0;R;<font> 05D0;;;;N;;;;;
+FB22;HEBREW LETTER WIDE DALET;Lo;0;R;<font> 05D3;;;;N;;;;;
+FB23;HEBREW LETTER WIDE HE;Lo;0;R;<font> 05D4;;;;N;;;;;
+FB24;HEBREW LETTER WIDE KAF;Lo;0;R;<font> 05DB;;;;N;;;;;
+FB25;HEBREW LETTER WIDE LAMED;Lo;0;R;<font> 05DC;;;;N;;;;;
+FB26;HEBREW LETTER WIDE FINAL MEM;Lo;0;R;<font> 05DD;;;;N;;;;;
+FB27;HEBREW LETTER WIDE RESH;Lo;0;R;<font> 05E8;;;;N;;;;;
+FB28;HEBREW LETTER WIDE TAV;Lo;0;R;<font> 05EA;;;;N;;;;;
+FB29;HEBREW LETTER ALTERNATIVE PLUS SIGN;Sm;0;ES;<font> 002B;;;;N;;;;;
+FB2A;HEBREW LETTER SHIN WITH SHIN DOT;Lo;0;R;05E9 05C1;;;;N;;;;;
+FB2B;HEBREW LETTER SHIN WITH SIN DOT;Lo;0;R;05E9 05C2;;;;N;;;;;
+FB2C;HEBREW LETTER SHIN WITH DAGESH AND SHIN DOT;Lo;0;R;FB49 05C1;;;;N;;;;;
+FB2D;HEBREW LETTER SHIN WITH DAGESH AND SIN DOT;Lo;0;R;FB49 05C2;;;;N;;;;;
+FB2E;HEBREW LETTER ALEF WITH PATAH;Lo;0;R;05D0 05B7;;;;N;;;;;
+FB2F;HEBREW LETTER ALEF WITH QAMATS;Lo;0;R;05D0 05B8;;;;N;;;;;
+FB30;HEBREW LETTER ALEF WITH MAPIQ;Lo;0;R;05D0 05BC;;;;N;;;;;
+FB31;HEBREW LETTER BET WITH DAGESH;Lo;0;R;05D1 05BC;;;;N;;;;;
+FB32;HEBREW LETTER GIMEL WITH DAGESH;Lo;0;R;05D2 05BC;;;;N;;;;;
+FB33;HEBREW LETTER DALET WITH DAGESH;Lo;0;R;05D3 05BC;;;;N;;;;;
+FB34;HEBREW LETTER HE WITH MAPIQ;Lo;0;R;05D4 05BC;;;;N;;;;;
+FB35;HEBREW LETTER VAV WITH DAGESH;Lo;0;R;05D5 05BC;;;;N;;;;;
+FB36;HEBREW LETTER ZAYIN WITH DAGESH;Lo;0;R;05D6 05BC;;;;N;;;;;
+FB38;HEBREW LETTER TET WITH DAGESH;Lo;0;R;05D8 05BC;;;;N;;;;;
+FB39;HEBREW LETTER YOD WITH DAGESH;Lo;0;R;05D9 05BC;;;;N;;;;;
+FB3A;HEBREW LETTER FINAL KAF WITH DAGESH;Lo;0;R;05DA 05BC;;;;N;;;;;
+FB3B;HEBREW LETTER KAF WITH DAGESH;Lo;0;R;05DB 05BC;;;;N;;;;;
+FB3C;HEBREW LETTER LAMED WITH DAGESH;Lo;0;R;05DC 05BC;;;;N;;;;;
+FB3E;HEBREW LETTER MEM WITH DAGESH;Lo;0;R;05DE 05BC;;;;N;;;;;
+FB40;HEBREW LETTER NUN WITH DAGESH;Lo;0;R;05E0 05BC;;;;N;;;;;
+FB41;HEBREW LETTER SAMEKH WITH DAGESH;Lo;0;R;05E1 05BC;;;;N;;;;;
+FB43;HEBREW LETTER FINAL PE WITH DAGESH;Lo;0;R;05E3 05BC;;;;N;;;;;
+FB44;HEBREW LETTER PE WITH DAGESH;Lo;0;R;05E4 05BC;;;;N;;;;;
+FB46;HEBREW LETTER TSADI WITH DAGESH;Lo;0;R;05E6 05BC;;;;N;;;;;
+FB47;HEBREW LETTER QOF WITH DAGESH;Lo;0;R;05E7 05BC;;;;N;;;;;
+FB48;HEBREW LETTER RESH WITH DAGESH;Lo;0;R;05E8 05BC;;;;N;;;;;
+FB49;HEBREW LETTER SHIN WITH DAGESH;Lo;0;R;05E9 05BC;;;;N;;;;;
+FB4A;HEBREW LETTER TAV WITH DAGESH;Lo;0;R;05EA 05BC;;;;N;;;;;
+FB4B;HEBREW LETTER VAV WITH HOLAM;Lo;0;R;05D5 05B9;;;;N;;;;;
+FB4C;HEBREW LETTER BET WITH RAFE;Lo;0;R;05D1 05BF;;;;N;;;;;
+FB4D;HEBREW LETTER KAF WITH RAFE;Lo;0;R;05DB 05BF;;;;N;;;;;
+FB4E;HEBREW LETTER PE WITH RAFE;Lo;0;R;05E4 05BF;;;;N;;;;;
+FB4F;HEBREW LIGATURE ALEF LAMED;Lo;0;R;<compat> 05D0 05DC;;;;N;;;;;
+FB50;ARABIC LETTER ALEF WASLA ISOLATED FORM;Lo;0;AL;<isolated> 0671;;;;N;;;;;
+FB51;ARABIC LETTER ALEF WASLA FINAL FORM;Lo;0;AL;<final> 0671;;;;N;;;;;
+FB52;ARABIC LETTER BEEH ISOLATED FORM;Lo;0;AL;<isolated> 067B;;;;N;;;;;
+FB53;ARABIC LETTER BEEH FINAL FORM;Lo;0;AL;<final> 067B;;;;N;;;;;
+FB54;ARABIC LETTER BEEH INITIAL FORM;Lo;0;AL;<initial> 067B;;;;N;;;;;
+FB55;ARABIC LETTER BEEH MEDIAL FORM;Lo;0;AL;<medial> 067B;;;;N;;;;;
+FB56;ARABIC LETTER PEH ISOLATED FORM;Lo;0;AL;<isolated> 067E;;;;N;;;;;
+FB57;ARABIC LETTER PEH FINAL FORM;Lo;0;AL;<final> 067E;;;;N;;;;;
+FB58;ARABIC LETTER PEH INITIAL FORM;Lo;0;AL;<initial> 067E;;;;N;;;;;
+FB59;ARABIC LETTER PEH MEDIAL FORM;Lo;0;AL;<medial> 067E;;;;N;;;;;
+FB5A;ARABIC LETTER BEHEH ISOLATED FORM;Lo;0;AL;<isolated> 0680;;;;N;;;;;
+FB5B;ARABIC LETTER BEHEH FINAL FORM;Lo;0;AL;<final> 0680;;;;N;;;;;
+FB5C;ARABIC LETTER BEHEH INITIAL FORM;Lo;0;AL;<initial> 0680;;;;N;;;;;
+FB5D;ARABIC LETTER BEHEH MEDIAL FORM;Lo;0;AL;<medial> 0680;;;;N;;;;;
+FB5E;ARABIC LETTER TTEHEH ISOLATED FORM;Lo;0;AL;<isolated> 067A;;;;N;;;;;
+FB5F;ARABIC LETTER TTEHEH FINAL FORM;Lo;0;AL;<final> 067A;;;;N;;;;;
+FB60;ARABIC LETTER TTEHEH INITIAL FORM;Lo;0;AL;<initial> 067A;;;;N;;;;;
+FB61;ARABIC LETTER TTEHEH MEDIAL FORM;Lo;0;AL;<medial> 067A;;;;N;;;;;
+FB62;ARABIC LETTER TEHEH ISOLATED FORM;Lo;0;AL;<isolated> 067F;;;;N;;;;;
+FB63;ARABIC LETTER TEHEH FINAL FORM;Lo;0;AL;<final> 067F;;;;N;;;;;
+FB64;ARABIC LETTER TEHEH INITIAL FORM;Lo;0;AL;<initial> 067F;;;;N;;;;;
+FB65;ARABIC LETTER TEHEH MEDIAL FORM;Lo;0;AL;<medial> 067F;;;;N;;;;;
+FB66;ARABIC LETTER TTEH ISOLATED FORM;Lo;0;AL;<isolated> 0679;;;;N;;;;;
+FB67;ARABIC LETTER TTEH FINAL FORM;Lo;0;AL;<final> 0679;;;;N;;;;;
+FB68;ARABIC LETTER TTEH INITIAL FORM;Lo;0;AL;<initial> 0679;;;;N;;;;;
+FB69;ARABIC LETTER TTEH MEDIAL FORM;Lo;0;AL;<medial> 0679;;;;N;;;;;
+FB6A;ARABIC LETTER VEH ISOLATED FORM;Lo;0;AL;<isolated> 06A4;;;;N;;;;;
+FB6B;ARABIC LETTER VEH FINAL FORM;Lo;0;AL;<final> 06A4;;;;N;;;;;
+FB6C;ARABIC LETTER VEH INITIAL FORM;Lo;0;AL;<initial> 06A4;;;;N;;;;;
+FB6D;ARABIC LETTER VEH MEDIAL FORM;Lo;0;AL;<medial> 06A4;;;;N;;;;;
+FB6E;ARABIC LETTER PEHEH ISOLATED FORM;Lo;0;AL;<isolated> 06A6;;;;N;;;;;
+FB6F;ARABIC LETTER PEHEH FINAL FORM;Lo;0;AL;<final> 06A6;;;;N;;;;;
+FB70;ARABIC LETTER PEHEH INITIAL FORM;Lo;0;AL;<initial> 06A6;;;;N;;;;;
+FB71;ARABIC LETTER PEHEH MEDIAL FORM;Lo;0;AL;<medial> 06A6;;;;N;;;;;
+FB72;ARABIC LETTER DYEH ISOLATED FORM;Lo;0;AL;<isolated> 0684;;;;N;;;;;
+FB73;ARABIC LETTER DYEH FINAL FORM;Lo;0;AL;<final> 0684;;;;N;;;;;
+FB74;ARABIC LETTER DYEH INITIAL FORM;Lo;0;AL;<initial> 0684;;;;N;;;;;
+FB75;ARABIC LETTER DYEH MEDIAL FORM;Lo;0;AL;<medial> 0684;;;;N;;;;;
+FB76;ARABIC LETTER NYEH ISOLATED FORM;Lo;0;AL;<isolated> 0683;;;;N;;;;;
+FB77;ARABIC LETTER NYEH FINAL FORM;Lo;0;AL;<final> 0683;;;;N;;;;;
+FB78;ARABIC LETTER NYEH INITIAL FORM;Lo;0;AL;<initial> 0683;;;;N;;;;;
+FB79;ARABIC LETTER NYEH MEDIAL FORM;Lo;0;AL;<medial> 0683;;;;N;;;;;
+FB7A;ARABIC LETTER TCHEH ISOLATED FORM;Lo;0;AL;<isolated> 0686;;;;N;;;;;
+FB7B;ARABIC LETTER TCHEH FINAL FORM;Lo;0;AL;<final> 0686;;;;N;;;;;
+FB7C;ARABIC LETTER TCHEH INITIAL FORM;Lo;0;AL;<initial> 0686;;;;N;;;;;
+FB7D;ARABIC LETTER TCHEH MEDIAL FORM;Lo;0;AL;<medial> 0686;;;;N;;;;;
+FB7E;ARABIC LETTER TCHEHEH ISOLATED FORM;Lo;0;AL;<isolated> 0687;;;;N;;;;;
+FB7F;ARABIC LETTER TCHEHEH FINAL FORM;Lo;0;AL;<final> 0687;;;;N;;;;;
+FB80;ARABIC LETTER TCHEHEH INITIAL FORM;Lo;0;AL;<initial> 0687;;;;N;;;;;
+FB81;ARABIC LETTER TCHEHEH MEDIAL FORM;Lo;0;AL;<medial> 0687;;;;N;;;;;
+FB82;ARABIC LETTER DDAHAL ISOLATED FORM;Lo;0;AL;<isolated> 068D;;;;N;;;;;
+FB83;ARABIC LETTER DDAHAL FINAL FORM;Lo;0;AL;<final> 068D;;;;N;;;;;
+FB84;ARABIC LETTER DAHAL ISOLATED FORM;Lo;0;AL;<isolated> 068C;;;;N;;;;;
+FB85;ARABIC LETTER DAHAL FINAL FORM;Lo;0;AL;<final> 068C;;;;N;;;;;
+FB86;ARABIC LETTER DUL ISOLATED FORM;Lo;0;AL;<isolated> 068E;;;;N;;;;;
+FB87;ARABIC LETTER DUL FINAL FORM;Lo;0;AL;<final> 068E;;;;N;;;;;
+FB88;ARABIC LETTER DDAL ISOLATED FORM;Lo;0;AL;<isolated> 0688;;;;N;;;;;
+FB89;ARABIC LETTER DDAL FINAL FORM;Lo;0;AL;<final> 0688;;;;N;;;;;
+FB8A;ARABIC LETTER JEH ISOLATED FORM;Lo;0;AL;<isolated> 0698;;;;N;;;;;
+FB8B;ARABIC LETTER JEH FINAL FORM;Lo;0;AL;<final> 0698;;;;N;;;;;
+FB8C;ARABIC LETTER RREH ISOLATED FORM;Lo;0;AL;<isolated> 0691;;;;N;;;;;
+FB8D;ARABIC LETTER RREH FINAL FORM;Lo;0;AL;<final> 0691;;;;N;;;;;
+FB8E;ARABIC LETTER KEHEH ISOLATED FORM;Lo;0;AL;<isolated> 06A9;;;;N;;;;;
+FB8F;ARABIC LETTER KEHEH FINAL FORM;Lo;0;AL;<final> 06A9;;;;N;;;;;
+FB90;ARABIC LETTER KEHEH INITIAL FORM;Lo;0;AL;<initial> 06A9;;;;N;;;;;
+FB91;ARABIC LETTER KEHEH MEDIAL FORM;Lo;0;AL;<medial> 06A9;;;;N;;;;;
+FB92;ARABIC LETTER GAF ISOLATED FORM;Lo;0;AL;<isolated> 06AF;;;;N;;;;;
+FB93;ARABIC LETTER GAF FINAL FORM;Lo;0;AL;<final> 06AF;;;;N;;;;;
+FB94;ARABIC LETTER GAF INITIAL FORM;Lo;0;AL;<initial> 06AF;;;;N;;;;;
+FB95;ARABIC LETTER GAF MEDIAL FORM;Lo;0;AL;<medial> 06AF;;;;N;;;;;
+FB96;ARABIC LETTER GUEH ISOLATED FORM;Lo;0;AL;<isolated> 06B3;;;;N;;;;;
+FB97;ARABIC LETTER GUEH FINAL FORM;Lo;0;AL;<final> 06B3;;;;N;;;;;
+FB98;ARABIC LETTER GUEH INITIAL FORM;Lo;0;AL;<initial> 06B3;;;;N;;;;;
+FB99;ARABIC LETTER GUEH MEDIAL FORM;Lo;0;AL;<medial> 06B3;;;;N;;;;;
+FB9A;ARABIC LETTER NGOEH ISOLATED FORM;Lo;0;AL;<isolated> 06B1;;;;N;;;;;
+FB9B;ARABIC LETTER NGOEH FINAL FORM;Lo;0;AL;<final> 06B1;;;;N;;;;;
+FB9C;ARABIC LETTER NGOEH INITIAL FORM;Lo;0;AL;<initial> 06B1;;;;N;;;;;
+FB9D;ARABIC LETTER NGOEH MEDIAL FORM;Lo;0;AL;<medial> 06B1;;;;N;;;;;
+FB9E;ARABIC LETTER NOON GHUNNA ISOLATED FORM;Lo;0;AL;<isolated> 06BA;;;;N;;;;;
+FB9F;ARABIC LETTER NOON GHUNNA FINAL FORM;Lo;0;AL;<final> 06BA;;;;N;;;;;
+FBA0;ARABIC LETTER RNOON ISOLATED FORM;Lo;0;AL;<isolated> 06BB;;;;N;;;;;
+FBA1;ARABIC LETTER RNOON FINAL FORM;Lo;0;AL;<final> 06BB;;;;N;;;;;
+FBA2;ARABIC LETTER RNOON INITIAL FORM;Lo;0;AL;<initial> 06BB;;;;N;;;;;
+FBA3;ARABIC LETTER RNOON MEDIAL FORM;Lo;0;AL;<medial> 06BB;;;;N;;;;;
+FBA4;ARABIC LETTER HEH WITH YEH ABOVE ISOLATED FORM;Lo;0;AL;<isolated> 06C0;;;;N;;;;;
+FBA5;ARABIC LETTER HEH WITH YEH ABOVE FINAL FORM;Lo;0;AL;<final> 06C0;;;;N;;;;;
+FBA6;ARABIC LETTER HEH GOAL ISOLATED FORM;Lo;0;AL;<isolated> 06C1;;;;N;;;;;
+FBA7;ARABIC LETTER HEH GOAL FINAL FORM;Lo;0;AL;<final> 06C1;;;;N;;;;;
+FBA8;ARABIC LETTER HEH GOAL INITIAL FORM;Lo;0;AL;<initial> 06C1;;;;N;;;;;
+FBA9;ARABIC LETTER HEH GOAL MEDIAL FORM;Lo;0;AL;<medial> 06C1;;;;N;;;;;
+FBAA;ARABIC LETTER HEH DOACHASHMEE ISOLATED FORM;Lo;0;AL;<isolated> 06BE;;;;N;;;;;
+FBAB;ARABIC LETTER HEH DOACHASHMEE FINAL FORM;Lo;0;AL;<final> 06BE;;;;N;;;;;
+FBAC;ARABIC LETTER HEH DOACHASHMEE INITIAL FORM;Lo;0;AL;<initial> 06BE;;;;N;;;;;
+FBAD;ARABIC LETTER HEH DOACHASHMEE MEDIAL FORM;Lo;0;AL;<medial> 06BE;;;;N;;;;;
+FBAE;ARABIC LETTER YEH BARREE ISOLATED FORM;Lo;0;AL;<isolated> 06D2;;;;N;;;;;
+FBAF;ARABIC LETTER YEH BARREE FINAL FORM;Lo;0;AL;<final> 06D2;;;;N;;;;;
+FBB0;ARABIC LETTER YEH BARREE WITH HAMZA ABOVE ISOLATED FORM;Lo;0;AL;<isolated> 06D3;;;;N;;;;;
+FBB1;ARABIC LETTER YEH BARREE WITH HAMZA ABOVE FINAL FORM;Lo;0;AL;<final> 06D3;;;;N;;;;;
+FBB2;ARABIC SYMBOL DOT ABOVE;Sk;0;AL;;;;;N;;;;;
+FBB3;ARABIC SYMBOL DOT BELOW;Sk;0;AL;;;;;N;;;;;
+FBB4;ARABIC SYMBOL TWO DOTS ABOVE;Sk;0;AL;;;;;N;;;;;
+FBB5;ARABIC SYMBOL TWO DOTS BELOW;Sk;0;AL;;;;;N;;;;;
+FBB6;ARABIC SYMBOL THREE DOTS ABOVE;Sk;0;AL;;;;;N;;;;;
+FBB7;ARABIC SYMBOL THREE DOTS BELOW;Sk;0;AL;;;;;N;;;;;
+FBB8;ARABIC SYMBOL THREE DOTS POINTING DOWNWARDS ABOVE;Sk;0;AL;;;;;N;;;;;
+FBB9;ARABIC SYMBOL THREE DOTS POINTING DOWNWARDS BELOW;Sk;0;AL;;;;;N;;;;;
+FBBA;ARABIC SYMBOL FOUR DOTS ABOVE;Sk;0;AL;;;;;N;;;;;
+FBBB;ARABIC SYMBOL FOUR DOTS BELOW;Sk;0;AL;;;;;N;;;;;
+FBBC;ARABIC SYMBOL DOUBLE VERTICAL BAR BELOW;Sk;0;AL;;;;;N;;;;;
+FBBD;ARABIC SYMBOL TWO DOTS VERTICALLY ABOVE;Sk;0;AL;;;;;N;;;;;
+FBBE;ARABIC SYMBOL TWO DOTS VERTICALLY BELOW;Sk;0;AL;;;;;N;;;;;
+FBBF;ARABIC SYMBOL RING;Sk;0;AL;;;;;N;;;;;
+FBC0;ARABIC SYMBOL SMALL TAH ABOVE;Sk;0;AL;;;;;N;;;;;
+FBC1;ARABIC SYMBOL SMALL TAH BELOW;Sk;0;AL;;;;;N;;;;;
+FBD3;ARABIC LETTER NG ISOLATED FORM;Lo;0;AL;<isolated> 06AD;;;;N;;;;;
+FBD4;ARABIC LETTER NG FINAL FORM;Lo;0;AL;<final> 06AD;;;;N;;;;;
+FBD5;ARABIC LETTER NG INITIAL FORM;Lo;0;AL;<initial> 06AD;;;;N;;;;;
+FBD6;ARABIC LETTER NG MEDIAL FORM;Lo;0;AL;<medial> 06AD;;;;N;;;;;
+FBD7;ARABIC LETTER U ISOLATED FORM;Lo;0;AL;<isolated> 06C7;;;;N;;;;;
+FBD8;ARABIC LETTER U FINAL FORM;Lo;0;AL;<final> 06C7;;;;N;;;;;
+FBD9;ARABIC LETTER OE ISOLATED FORM;Lo;0;AL;<isolated> 06C6;;;;N;;;;;
+FBDA;ARABIC LETTER OE FINAL FORM;Lo;0;AL;<final> 06C6;;;;N;;;;;
+FBDB;ARABIC LETTER YU ISOLATED FORM;Lo;0;AL;<isolated> 06C8;;;;N;;;;;
+FBDC;ARABIC LETTER YU FINAL FORM;Lo;0;AL;<final> 06C8;;;;N;;;;;
+FBDD;ARABIC LETTER U WITH HAMZA ABOVE ISOLATED FORM;Lo;0;AL;<isolated> 0677;;;;N;;;;;
+FBDE;ARABIC LETTER VE ISOLATED FORM;Lo;0;AL;<isolated> 06CB;;;;N;;;;;
+FBDF;ARABIC LETTER VE FINAL FORM;Lo;0;AL;<final> 06CB;;;;N;;;;;
+FBE0;ARABIC LETTER KIRGHIZ OE ISOLATED FORM;Lo;0;AL;<isolated> 06C5;;;;N;;;;;
+FBE1;ARABIC LETTER KIRGHIZ OE FINAL FORM;Lo;0;AL;<final> 06C5;;;;N;;;;;
+FBE2;ARABIC LETTER KIRGHIZ YU ISOLATED FORM;Lo;0;AL;<isolated> 06C9;;;;N;;;;;
+FBE3;ARABIC LETTER KIRGHIZ YU FINAL FORM;Lo;0;AL;<final> 06C9;;;;N;;;;;
+FBE4;ARABIC LETTER E ISOLATED FORM;Lo;0;AL;<isolated> 06D0;;;;N;;;;;
+FBE5;ARABIC LETTER E FINAL FORM;Lo;0;AL;<final> 06D0;;;;N;;;;;
+FBE6;ARABIC LETTER E INITIAL FORM;Lo;0;AL;<initial> 06D0;;;;N;;;;;
+FBE7;ARABIC LETTER E MEDIAL FORM;Lo;0;AL;<medial> 06D0;;;;N;;;;;
+FBE8;ARABIC LETTER UIGHUR KAZAKH KIRGHIZ ALEF MAKSURA INITIAL FORM;Lo;0;AL;<initial> 0649;;;;N;;;;;
+FBE9;ARABIC LETTER UIGHUR KAZAKH KIRGHIZ ALEF MAKSURA MEDIAL FORM;Lo;0;AL;<medial> 0649;;;;N;;;;;
+FBEA;ARABIC LIGATURE YEH WITH HAMZA ABOVE WITH ALEF ISOLATED FORM;Lo;0;AL;<isolated> 0626 0627;;;;N;;;;;
+FBEB;ARABIC LIGATURE YEH WITH HAMZA ABOVE WITH ALEF FINAL FORM;Lo;0;AL;<final> 0626 0627;;;;N;;;;;
+FBEC;ARABIC LIGATURE YEH WITH HAMZA ABOVE WITH AE ISOLATED FORM;Lo;0;AL;<isolated> 0626 06D5;;;;N;;;;;
+FBED;ARABIC LIGATURE YEH WITH HAMZA ABOVE WITH AE FINAL FORM;Lo;0;AL;<final> 0626 06D5;;;;N;;;;;
+FBEE;ARABIC LIGATURE YEH WITH HAMZA ABOVE WITH WAW ISOLATED FORM;Lo;0;AL;<isolated> 0626 0648;;;;N;;;;;
+FBEF;ARABIC LIGATURE YEH WITH HAMZA ABOVE WITH WAW FINAL FORM;Lo;0;AL;<final> 0626 0648;;;;N;;;;;
+FBF0;ARABIC LIGATURE YEH WITH HAMZA ABOVE WITH U ISOLATED FORM;Lo;0;AL;<isolated> 0626 06C7;;;;N;;;;;
+FBF1;ARABIC LIGATURE YEH WITH HAMZA ABOVE WITH U FINAL FORM;Lo;0;AL;<final> 0626 06C7;;;;N;;;;;
+FBF2;ARABIC LIGATURE YEH WITH HAMZA ABOVE WITH OE ISOLATED FORM;Lo;0;AL;<isolated> 0626 06C6;;;;N;;;;;
+FBF3;ARABIC LIGATURE YEH WITH HAMZA ABOVE WITH OE FINAL FORM;Lo;0;AL;<final> 0626 06C6;;;;N;;;;;
+FBF4;ARABIC LIGATURE YEH WITH HAMZA ABOVE WITH YU ISOLATED FORM;Lo;0;AL;<isolated> 0626 06C8;;;;N;;;;;
+FBF5;ARABIC LIGATURE YEH WITH HAMZA ABOVE WITH YU FINAL FORM;Lo;0;AL;<final> 0626 06C8;;;;N;;;;;
+FBF6;ARABIC LIGATURE YEH WITH HAMZA ABOVE WITH E ISOLATED FORM;Lo;0;AL;<isolated> 0626 06D0;;;;N;;;;;
+FBF7;ARABIC LIGATURE YEH WITH HAMZA ABOVE WITH E FINAL FORM;Lo;0;AL;<final> 0626 06D0;;;;N;;;;;
+FBF8;ARABIC LIGATURE YEH WITH HAMZA ABOVE WITH E INITIAL FORM;Lo;0;AL;<initial> 0626 06D0;;;;N;;;;;
+FBF9;ARABIC LIGATURE UIGHUR KIRGHIZ YEH WITH HAMZA ABOVE WITH ALEF MAKSURA ISOLATED FORM;Lo;0;AL;<isolated> 0626 0649;;;;N;;;;;
+FBFA;ARABIC LIGATURE UIGHUR KIRGHIZ YEH WITH HAMZA ABOVE WITH ALEF MAKSURA FINAL FORM;Lo;0;AL;<final> 0626 0649;;;;N;;;;;
+FBFB;ARABIC LIGATURE UIGHUR KIRGHIZ YEH WITH HAMZA ABOVE WITH ALEF MAKSURA INITIAL FORM;Lo;0;AL;<initial> 0626 0649;;;;N;;;;;
+FBFC;ARABIC LETTER FARSI YEH ISOLATED FORM;Lo;0;AL;<isolated> 06CC;;;;N;;;;;
+FBFD;ARABIC LETTER FARSI YEH FINAL FORM;Lo;0;AL;<final> 06CC;;;;N;;;;;
+FBFE;ARABIC LETTER FARSI YEH INITIAL FORM;Lo;0;AL;<initial> 06CC;;;;N;;;;;
+FBFF;ARABIC LETTER FARSI YEH MEDIAL FORM;Lo;0;AL;<medial> 06CC;;;;N;;;;;
+FC00;ARABIC LIGATURE YEH WITH HAMZA ABOVE WITH JEEM ISOLATED FORM;Lo;0;AL;<isolated> 0626 062C;;;;N;;;;;
+FC01;ARABIC LIGATURE YEH WITH HAMZA ABOVE WITH HAH ISOLATED FORM;Lo;0;AL;<isolated> 0626 062D;;;;N;;;;;
+FC02;ARABIC LIGATURE YEH WITH HAMZA ABOVE WITH MEEM ISOLATED FORM;Lo;0;AL;<isolated> 0626 0645;;;;N;;;;;
+FC03;ARABIC LIGATURE YEH WITH HAMZA ABOVE WITH ALEF MAKSURA ISOLATED FORM;Lo;0;AL;<isolated> 0626 0649;;;;N;;;;;
+FC04;ARABIC LIGATURE YEH WITH HAMZA ABOVE WITH YEH ISOLATED FORM;Lo;0;AL;<isolated> 0626 064A;;;;N;;;;;
+FC05;ARABIC LIGATURE BEH WITH JEEM ISOLATED FORM;Lo;0;AL;<isolated> 0628 062C;;;;N;;;;;
+FC06;ARABIC LIGATURE BEH WITH HAH ISOLATED FORM;Lo;0;AL;<isolated> 0628 062D;;;;N;;;;;
+FC07;ARABIC LIGATURE BEH WITH KHAH ISOLATED FORM;Lo;0;AL;<isolated> 0628 062E;;;;N;;;;;
+FC08;ARABIC LIGATURE BEH WITH MEEM ISOLATED FORM;Lo;0;AL;<isolated> 0628 0645;;;;N;;;;;
+FC09;ARABIC LIGATURE BEH WITH ALEF MAKSURA ISOLATED FORM;Lo;0;AL;<isolated> 0628 0649;;;;N;;;;;
+FC0A;ARABIC LIGATURE BEH WITH YEH ISOLATED FORM;Lo;0;AL;<isolated> 0628 064A;;;;N;;;;;
+FC0B;ARABIC LIGATURE TEH WITH JEEM ISOLATED FORM;Lo;0;AL;<isolated> 062A 062C;;;;N;;;;;
+FC0C;ARABIC LIGATURE TEH WITH HAH ISOLATED FORM;Lo;0;AL;<isolated> 062A 062D;;;;N;;;;;
+FC0D;ARABIC LIGATURE TEH WITH KHAH ISOLATED FORM;Lo;0;AL;<isolated> 062A 062E;;;;N;;;;;
+FC0E;ARABIC LIGATURE TEH WITH MEEM ISOLATED FORM;Lo;0;AL;<isolated> 062A 0645;;;;N;;;;;
+FC0F;ARABIC LIGATURE TEH WITH ALEF MAKSURA ISOLATED FORM;Lo;0;AL;<isolated> 062A 0649;;;;N;;;;;
+FC10;ARABIC LIGATURE TEH WITH YEH ISOLATED FORM;Lo;0;AL;<isolated> 062A 064A;;;;N;;;;;
+FC11;ARABIC LIGATURE THEH WITH JEEM ISOLATED FORM;Lo;0;AL;<isolated> 062B 062C;;;;N;;;;;
+FC12;ARABIC LIGATURE THEH WITH MEEM ISOLATED FORM;Lo;0;AL;<isolated> 062B 0645;;;;N;;;;;
+FC13;ARABIC LIGATURE THEH WITH ALEF MAKSURA ISOLATED FORM;Lo;0;AL;<isolated> 062B 0649;;;;N;;;;;
+FC14;ARABIC LIGATURE THEH WITH YEH ISOLATED FORM;Lo;0;AL;<isolated> 062B 064A;;;;N;;;;;
+FC15;ARABIC LIGATURE JEEM WITH HAH ISOLATED FORM;Lo;0;AL;<isolated> 062C 062D;;;;N;;;;;
+FC16;ARABIC LIGATURE JEEM WITH MEEM ISOLATED FORM;Lo;0;AL;<isolated> 062C 0645;;;;N;;;;;
+FC17;ARABIC LIGATURE HAH WITH JEEM ISOLATED FORM;Lo;0;AL;<isolated> 062D 062C;;;;N;;;;;
+FC18;ARABIC LIGATURE HAH WITH MEEM ISOLATED FORM;Lo;0;AL;<isolated> 062D 0645;;;;N;;;;;
+FC19;ARABIC LIGATURE KHAH WITH JEEM ISOLATED FORM;Lo;0;AL;<isolated> 062E 062C;;;;N;;;;;
+FC1A;ARABIC LIGATURE KHAH WITH HAH ISOLATED FORM;Lo;0;AL;<isolated> 062E 062D;;;;N;;;;;
+FC1B;ARABIC LIGATURE KHAH WITH MEEM ISOLATED FORM;Lo;0;AL;<isolated> 062E 0645;;;;N;;;;;
+FC1C;ARABIC LIGATURE SEEN WITH JEEM ISOLATED FORM;Lo;0;AL;<isolated> 0633 062C;;;;N;;;;;
+FC1D;ARABIC LIGATURE SEEN WITH HAH ISOLATED FORM;Lo;0;AL;<isolated> 0633 062D;;;;N;;;;;
+FC1E;ARABIC LIGATURE SEEN WITH KHAH ISOLATED FORM;Lo;0;AL;<isolated> 0633 062E;;;;N;;;;;
+FC1F;ARABIC LIGATURE SEEN WITH MEEM ISOLATED FORM;Lo;0;AL;<isolated> 0633 0645;;;;N;;;;;
+FC20;ARABIC LIGATURE SAD WITH HAH ISOLATED FORM;Lo;0;AL;<isolated> 0635 062D;;;;N;;;;;
+FC21;ARABIC LIGATURE SAD WITH MEEM ISOLATED FORM;Lo;0;AL;<isolated> 0635 0645;;;;N;;;;;
+FC22;ARABIC LIGATURE DAD WITH JEEM ISOLATED FORM;Lo;0;AL;<isolated> 0636 062C;;;;N;;;;;
+FC23;ARABIC LIGATURE DAD WITH HAH ISOLATED FORM;Lo;0;AL;<isolated> 0636 062D;;;;N;;;;;
+FC24;ARABIC LIGATURE DAD WITH KHAH ISOLATED FORM;Lo;0;AL;<isolated> 0636 062E;;;;N;;;;;
+FC25;ARABIC LIGATURE DAD WITH MEEM ISOLATED FORM;Lo;0;AL;<isolated> 0636 0645;;;;N;;;;;
+FC26;ARABIC LIGATURE TAH WITH HAH ISOLATED FORM;Lo;0;AL;<isolated> 0637 062D;;;;N;;;;;
+FC27;ARABIC LIGATURE TAH WITH MEEM ISOLATED FORM;Lo;0;AL;<isolated> 0637 0645;;;;N;;;;;
+FC28;ARABIC LIGATURE ZAH WITH MEEM ISOLATED FORM;Lo;0;AL;<isolated> 0638 0645;;;;N;;;;;
+FC29;ARABIC LIGATURE AIN WITH JEEM ISOLATED FORM;Lo;0;AL;<isolated> 0639 062C;;;;N;;;;;
+FC2A;ARABIC LIGATURE AIN WITH MEEM ISOLATED FORM;Lo;0;AL;<isolated> 0639 0645;;;;N;;;;;
+FC2B;ARABIC LIGATURE GHAIN WITH JEEM ISOLATED FORM;Lo;0;AL;<isolated> 063A 062C;;;;N;;;;;
+FC2C;ARABIC LIGATURE GHAIN WITH MEEM ISOLATED FORM;Lo;0;AL;<isolated> 063A 0645;;;;N;;;;;
+FC2D;ARABIC LIGATURE FEH WITH JEEM ISOLATED FORM;Lo;0;AL;<isolated> 0641 062C;;;;N;;;;;
+FC2E;ARABIC LIGATURE FEH WITH HAH ISOLATED FORM;Lo;0;AL;<isolated> 0641 062D;;;;N;;;;;
+FC2F;ARABIC LIGATURE FEH WITH KHAH ISOLATED FORM;Lo;0;AL;<isolated> 0641 062E;;;;N;;;;;
+FC30;ARABIC LIGATURE FEH WITH MEEM ISOLATED FORM;Lo;0;AL;<isolated> 0641 0645;;;;N;;;;;
+FC31;ARABIC LIGATURE FEH WITH ALEF MAKSURA ISOLATED FORM;Lo;0;AL;<isolated> 0641 0649;;;;N;;;;;
+FC32;ARABIC LIGATURE FEH WITH YEH ISOLATED FORM;Lo;0;AL;<isolated> 0641 064A;;;;N;;;;;
+FC33;ARABIC LIGATURE QAF WITH HAH ISOLATED FORM;Lo;0;AL;<isolated> 0642 062D;;;;N;;;;;
+FC34;ARABIC LIGATURE QAF WITH MEEM ISOLATED FORM;Lo;0;AL;<isolated> 0642 0645;;;;N;;;;;
+FC35;ARABIC LIGATURE QAF WITH ALEF MAKSURA ISOLATED FORM;Lo;0;AL;<isolated> 0642 0649;;;;N;;;;;
+FC36;ARABIC LIGATURE QAF WITH YEH ISOLATED FORM;Lo;0;AL;<isolated> 0642 064A;;;;N;;;;;
+FC37;ARABIC LIGATURE KAF WITH ALEF ISOLATED FORM;Lo;0;AL;<isolated> 0643 0627;;;;N;;;;;
+FC38;ARABIC LIGATURE KAF WITH JEEM ISOLATED FORM;Lo;0;AL;<isolated> 0643 062C;;;;N;;;;;
+FC39;ARABIC LIGATURE KAF WITH HAH ISOLATED FORM;Lo;0;AL;<isolated> 0643 062D;;;;N;;;;;
+FC3A;ARABIC LIGATURE KAF WITH KHAH ISOLATED FORM;Lo;0;AL;<isolated> 0643 062E;;;;N;;;;;
+FC3B;ARABIC LIGATURE KAF WITH LAM ISOLATED FORM;Lo;0;AL;<isolated> 0643 0644;;;;N;;;;;
+FC3C;ARABIC LIGATURE KAF WITH MEEM ISOLATED FORM;Lo;0;AL;<isolated> 0643 0645;;;;N;;;;;
+FC3D;ARABIC LIGATURE KAF WITH ALEF MAKSURA ISOLATED FORM;Lo;0;AL;<isolated> 0643 0649;;;;N;;;;;
+FC3E;ARABIC LIGATURE KAF WITH YEH ISOLATED FORM;Lo;0;AL;<isolated> 0643 064A;;;;N;;;;;
+FC3F;ARABIC LIGATURE LAM WITH JEEM ISOLATED FORM;Lo;0;AL;<isolated> 0644 062C;;;;N;;;;;
+FC40;ARABIC LIGATURE LAM WITH HAH ISOLATED FORM;Lo;0;AL;<isolated> 0644 062D;;;;N;;;;;
+FC41;ARABIC LIGATURE LAM WITH KHAH ISOLATED FORM;Lo;0;AL;<isolated> 0644 062E;;;;N;;;;;
+FC42;ARABIC LIGATURE LAM WITH MEEM ISOLATED FORM;Lo;0;AL;<isolated> 0644 0645;;;;N;;;;;
+FC43;ARABIC LIGATURE LAM WITH ALEF MAKSURA ISOLATED FORM;Lo;0;AL;<isolated> 0644 0649;;;;N;;;;;
+FC44;ARABIC LIGATURE LAM WITH YEH ISOLATED FORM;Lo;0;AL;<isolated> 0644 064A;;;;N;;;;;
+FC45;ARABIC LIGATURE MEEM WITH JEEM ISOLATED FORM;Lo;0;AL;<isolated> 0645 062C;;;;N;;;;;
+FC46;ARABIC LIGATURE MEEM WITH HAH ISOLATED FORM;Lo;0;AL;<isolated> 0645 062D;;;;N;;;;;
+FC47;ARABIC LIGATURE MEEM WITH KHAH ISOLATED FORM;Lo;0;AL;<isolated> 0645 062E;;;;N;;;;;
+FC48;ARABIC LIGATURE MEEM WITH MEEM ISOLATED FORM;Lo;0;AL;<isolated> 0645 0645;;;;N;;;;;
+FC49;ARABIC LIGATURE MEEM WITH ALEF MAKSURA ISOLATED FORM;Lo;0;AL;<isolated> 0645 0649;;;;N;;;;;
+FC4A;ARABIC LIGATURE MEEM WITH YEH ISOLATED FORM;Lo;0;AL;<isolated> 0645 064A;;;;N;;;;;
+FC4B;ARABIC LIGATURE NOON WITH JEEM ISOLATED FORM;Lo;0;AL;<isolated> 0646 062C;;;;N;;;;;
+FC4C;ARABIC LIGATURE NOON WITH HAH ISOLATED FORM;Lo;0;AL;<isolated> 0646 062D;;;;N;;;;;
+FC4D;ARABIC LIGATURE NOON WITH KHAH ISOLATED FORM;Lo;0;AL;<isolated> 0646 062E;;;;N;;;;;
+FC4E;ARABIC LIGATURE NOON WITH MEEM ISOLATED FORM;Lo;0;AL;<isolated> 0646 0645;;;;N;;;;;
+FC4F;ARABIC LIGATURE NOON WITH ALEF MAKSURA ISOLATED FORM;Lo;0;AL;<isolated> 0646 0649;;;;N;;;;;
+FC50;ARABIC LIGATURE NOON WITH YEH ISOLATED FORM;Lo;0;AL;<isolated> 0646 064A;;;;N;;;;;
+FC51;ARABIC LIGATURE HEH WITH JEEM ISOLATED FORM;Lo;0;AL;<isolated> 0647 062C;;;;N;;;;;
+FC52;ARABIC LIGATURE HEH WITH MEEM ISOLATED FORM;Lo;0;AL;<isolated> 0647 0645;;;;N;;;;;
+FC53;ARABIC LIGATURE HEH WITH ALEF MAKSURA ISOLATED FORM;Lo;0;AL;<isolated> 0647 0649;;;;N;;;;;
+FC54;ARABIC LIGATURE HEH WITH YEH ISOLATED FORM;Lo;0;AL;<isolated> 0647 064A;;;;N;;;;;
+FC55;ARABIC LIGATURE YEH WITH JEEM ISOLATED FORM;Lo;0;AL;<isolated> 064A 062C;;;;N;;;;;
+FC56;ARABIC LIGATURE YEH WITH HAH ISOLATED FORM;Lo;0;AL;<isolated> 064A 062D;;;;N;;;;;
+FC57;ARABIC LIGATURE YEH WITH KHAH ISOLATED FORM;Lo;0;AL;<isolated> 064A 062E;;;;N;;;;;
+FC58;ARABIC LIGATURE YEH WITH MEEM ISOLATED FORM;Lo;0;AL;<isolated> 064A 0645;;;;N;;;;;
+FC59;ARABIC LIGATURE YEH WITH ALEF MAKSURA ISOLATED FORM;Lo;0;AL;<isolated> 064A 0649;;;;N;;;;;
+FC5A;ARABIC LIGATURE YEH WITH YEH ISOLATED FORM;Lo;0;AL;<isolated> 064A 064A;;;;N;;;;;
+FC5B;ARABIC LIGATURE THAL WITH SUPERSCRIPT ALEF ISOLATED FORM;Lo;0;AL;<isolated> 0630 0670;;;;N;;;;;
+FC5C;ARABIC LIGATURE REH WITH SUPERSCRIPT ALEF ISOLATED FORM;Lo;0;AL;<isolated> 0631 0670;;;;N;;;;;
+FC5D;ARABIC LIGATURE ALEF MAKSURA WITH SUPERSCRIPT ALEF ISOLATED FORM;Lo;0;AL;<isolated> 0649 0670;;;;N;;;;;
+FC5E;ARABIC LIGATURE SHADDA WITH DAMMATAN ISOLATED FORM;Lo;0;AL;<isolated> 0020 064C 0651;;;;N;;;;;
+FC5F;ARABIC LIGATURE SHADDA WITH KASRATAN ISOLATED FORM;Lo;0;AL;<isolated> 0020 064D 0651;;;;N;;;;;
+FC60;ARABIC LIGATURE SHADDA WITH FATHA ISOLATED FORM;Lo;0;AL;<isolated> 0020 064E 0651;;;;N;;;;;
+FC61;ARABIC LIGATURE SHADDA WITH DAMMA ISOLATED FORM;Lo;0;AL;<isolated> 0020 064F 0651;;;;N;;;;;
+FC62;ARABIC LIGATURE SHADDA WITH KASRA ISOLATED FORM;Lo;0;AL;<isolated> 0020 0650 0651;;;;N;;;;;
+FC63;ARABIC LIGATURE SHADDA WITH SUPERSCRIPT ALEF ISOLATED FORM;Lo;0;AL;<isolated> 0020 0651 0670;;;;N;;;;;
+FC64;ARABIC LIGATURE YEH WITH HAMZA ABOVE WITH REH FINAL FORM;Lo;0;AL;<final> 0626 0631;;;;N;;;;;
+FC65;ARABIC LIGATURE YEH WITH HAMZA ABOVE WITH ZAIN FINAL FORM;Lo;0;AL;<final> 0626 0632;;;;N;;;;;
+FC66;ARABIC LIGATURE YEH WITH HAMZA ABOVE WITH MEEM FINAL FORM;Lo;0;AL;<final> 0626 0645;;;;N;;;;;
+FC67;ARABIC LIGATURE YEH WITH HAMZA ABOVE WITH NOON FINAL FORM;Lo;0;AL;<final> 0626 0646;;;;N;;;;;
+FC68;ARABIC LIGATURE YEH WITH HAMZA ABOVE WITH ALEF MAKSURA FINAL FORM;Lo;0;AL;<final> 0626 0649;;;;N;;;;;
+FC69;ARABIC LIGATURE YEH WITH HAMZA ABOVE WITH YEH FINAL FORM;Lo;0;AL;<final> 0626 064A;;;;N;;;;;
+FC6A;ARABIC LIGATURE BEH WITH REH FINAL FORM;Lo;0;AL;<final> 0628 0631;;;;N;;;;;
+FC6B;ARABIC LIGATURE BEH WITH ZAIN FINAL FORM;Lo;0;AL;<final> 0628 0632;;;;N;;;;;
+FC6C;ARABIC LIGATURE BEH WITH MEEM FINAL FORM;Lo;0;AL;<final> 0628 0645;;;;N;;;;;
+FC6D;ARABIC LIGATURE BEH WITH NOON FINAL FORM;Lo;0;AL;<final> 0628 0646;;;;N;;;;;
+FC6E;ARABIC LIGATURE BEH WITH ALEF MAKSURA FINAL FORM;Lo;0;AL;<final> 0628 0649;;;;N;;;;;
+FC6F;ARABIC LIGATURE BEH WITH YEH FINAL FORM;Lo;0;AL;<final> 0628 064A;;;;N;;;;;
+FC70;ARABIC LIGATURE TEH WITH REH FINAL FORM;Lo;0;AL;<final> 062A 0631;;;;N;;;;;
+FC71;ARABIC LIGATURE TEH WITH ZAIN FINAL FORM;Lo;0;AL;<final> 062A 0632;;;;N;;;;;
+FC72;ARABIC LIGATURE TEH WITH MEEM FINAL FORM;Lo;0;AL;<final> 062A 0645;;;;N;;;;;
+FC73;ARABIC LIGATURE TEH WITH NOON FINAL FORM;Lo;0;AL;<final> 062A 0646;;;;N;;;;;
+FC74;ARABIC LIGATURE TEH WITH ALEF MAKSURA FINAL FORM;Lo;0;AL;<final> 062A 0649;;;;N;;;;;
+FC75;ARABIC LIGATURE TEH WITH YEH FINAL FORM;Lo;0;AL;<final> 062A 064A;;;;N;;;;;
+FC76;ARABIC LIGATURE THEH WITH REH FINAL FORM;Lo;0;AL;<final> 062B 0631;;;;N;;;;;
+FC77;ARABIC LIGATURE THEH WITH ZAIN FINAL FORM;Lo;0;AL;<final> 062B 0632;;;;N;;;;;
+FC78;ARABIC LIGATURE THEH WITH MEEM FINAL FORM;Lo;0;AL;<final> 062B 0645;;;;N;;;;;
+FC79;ARABIC LIGATURE THEH WITH NOON FINAL FORM;Lo;0;AL;<final> 062B 0646;;;;N;;;;;
+FC7A;ARABIC LIGATURE THEH WITH ALEF MAKSURA FINAL FORM;Lo;0;AL;<final> 062B 0649;;;;N;;;;;
+FC7B;ARABIC LIGATURE THEH WITH YEH FINAL FORM;Lo;0;AL;<final> 062B 064A;;;;N;;;;;
+FC7C;ARABIC LIGATURE FEH WITH ALEF MAKSURA FINAL FORM;Lo;0;AL;<final> 0641 0649;;;;N;;;;;
+FC7D;ARABIC LIGATURE FEH WITH YEH FINAL FORM;Lo;0;AL;<final> 0641 064A;;;;N;;;;;
+FC7E;ARABIC LIGATURE QAF WITH ALEF MAKSURA FINAL FORM;Lo;0;AL;<final> 0642 0649;;;;N;;;;;
+FC7F;ARABIC LIGATURE QAF WITH YEH FINAL FORM;Lo;0;AL;<final> 0642 064A;;;;N;;;;;
+FC80;ARABIC LIGATURE KAF WITH ALEF FINAL FORM;Lo;0;AL;<final> 0643 0627;;;;N;;;;;
+FC81;ARABIC LIGATURE KAF WITH LAM FINAL FORM;Lo;0;AL;<final> 0643 0644;;;;N;;;;;
+FC82;ARABIC LIGATURE KAF WITH MEEM FINAL FORM;Lo;0;AL;<final> 0643 0645;;;;N;;;;;
+FC83;ARABIC LIGATURE KAF WITH ALEF MAKSURA FINAL FORM;Lo;0;AL;<final> 0643 0649;;;;N;;;;;
+FC84;ARABIC LIGATURE KAF WITH YEH FINAL FORM;Lo;0;AL;<final> 0643 064A;;;;N;;;;;
+FC85;ARABIC LIGATURE LAM WITH MEEM FINAL FORM;Lo;0;AL;<final> 0644 0645;;;;N;;;;;
+FC86;ARABIC LIGATURE LAM WITH ALEF MAKSURA FINAL FORM;Lo;0;AL;<final> 0644 0649;;;;N;;;;;
+FC87;ARABIC LIGATURE LAM WITH YEH FINAL FORM;Lo;0;AL;<final> 0644 064A;;;;N;;;;;
+FC88;ARABIC LIGATURE MEEM WITH ALEF FINAL FORM;Lo;0;AL;<final> 0645 0627;;;;N;;;;;
+FC89;ARABIC LIGATURE MEEM WITH MEEM FINAL FORM;Lo;0;AL;<final> 0645 0645;;;;N;;;;;
+FC8A;ARABIC LIGATURE NOON WITH REH FINAL FORM;Lo;0;AL;<final> 0646 0631;;;;N;;;;;
+FC8B;ARABIC LIGATURE NOON WITH ZAIN FINAL FORM;Lo;0;AL;<final> 0646 0632;;;;N;;;;;
+FC8C;ARABIC LIGATURE NOON WITH MEEM FINAL FORM;Lo;0;AL;<final> 0646 0645;;;;N;;;;;
+FC8D;ARABIC LIGATURE NOON WITH NOON FINAL FORM;Lo;0;AL;<final> 0646 0646;;;;N;;;;;
+FC8E;ARABIC LIGATURE NOON WITH ALEF MAKSURA FINAL FORM;Lo;0;AL;<final> 0646 0649;;;;N;;;;;
+FC8F;ARABIC LIGATURE NOON WITH YEH FINAL FORM;Lo;0;AL;<final> 0646 064A;;;;N;;;;;
+FC90;ARABIC LIGATURE ALEF MAKSURA WITH SUPERSCRIPT ALEF FINAL FORM;Lo;0;AL;<final> 0649 0670;;;;N;;;;;
+FC91;ARABIC LIGATURE YEH WITH REH FINAL FORM;Lo;0;AL;<final> 064A 0631;;;;N;;;;;
+FC92;ARABIC LIGATURE YEH WITH ZAIN FINAL FORM;Lo;0;AL;<final> 064A 0632;;;;N;;;;;
+FC93;ARABIC LIGATURE YEH WITH MEEM FINAL FORM;Lo;0;AL;<final> 064A 0645;;;;N;;;;;
+FC94;ARABIC LIGATURE YEH WITH NOON FINAL FORM;Lo;0;AL;<final> 064A 0646;;;;N;;;;;
+FC95;ARABIC LIGATURE YEH WITH ALEF MAKSURA FINAL FORM;Lo;0;AL;<final> 064A 0649;;;;N;;;;;
+FC96;ARABIC LIGATURE YEH WITH YEH FINAL FORM;Lo;0;AL;<final> 064A 064A;;;;N;;;;;
+FC97;ARABIC LIGATURE YEH WITH HAMZA ABOVE WITH JEEM INITIAL FORM;Lo;0;AL;<initial> 0626 062C;;;;N;;;;;
+FC98;ARABIC LIGATURE YEH WITH HAMZA ABOVE WITH HAH INITIAL FORM;Lo;0;AL;<initial> 0626 062D;;;;N;;;;;
+FC99;ARABIC LIGATURE YEH WITH HAMZA ABOVE WITH KHAH INITIAL FORM;Lo;0;AL;<initial> 0626 062E;;;;N;;;;;
+FC9A;ARABIC LIGATURE YEH WITH HAMZA ABOVE WITH MEEM INITIAL FORM;Lo;0;AL;<initial> 0626 0645;;;;N;;;;;
+FC9B;ARABIC LIGATURE YEH WITH HAMZA ABOVE WITH HEH INITIAL FORM;Lo;0;AL;<initial> 0626 0647;;;;N;;;;;
+FC9C;ARABIC LIGATURE BEH WITH JEEM INITIAL FORM;Lo;0;AL;<initial> 0628 062C;;;;N;;;;;
+FC9D;ARABIC LIGATURE BEH WITH HAH INITIAL FORM;Lo;0;AL;<initial> 0628 062D;;;;N;;;;;
+FC9E;ARABIC LIGATURE BEH WITH KHAH INITIAL FORM;Lo;0;AL;<initial> 0628 062E;;;;N;;;;;
+FC9F;ARABIC LIGATURE BEH WITH MEEM INITIAL FORM;Lo;0;AL;<initial> 0628 0645;;;;N;;;;;
+FCA0;ARABIC LIGATURE BEH WITH HEH INITIAL FORM;Lo;0;AL;<initial> 0628 0647;;;;N;;;;;
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+FD73;ARABIC LIGATURE TAH WITH MEEM WITH MEEM INITIAL FORM;Lo;0;AL;<initial> 0637 0645 0645;;;;N;;;;;
+FD74;ARABIC LIGATURE TAH WITH MEEM WITH YEH FINAL FORM;Lo;0;AL;<final> 0637 0645 064A;;;;N;;;;;
+FD75;ARABIC LIGATURE AIN WITH JEEM WITH MEEM FINAL FORM;Lo;0;AL;<final> 0639 062C 0645;;;;N;;;;;
+FD76;ARABIC LIGATURE AIN WITH MEEM WITH MEEM FINAL FORM;Lo;0;AL;<final> 0639 0645 0645;;;;N;;;;;
+FD77;ARABIC LIGATURE AIN WITH MEEM WITH MEEM INITIAL FORM;Lo;0;AL;<initial> 0639 0645 0645;;;;N;;;;;
+FD78;ARABIC LIGATURE AIN WITH MEEM WITH ALEF MAKSURA FINAL FORM;Lo;0;AL;<final> 0639 0645 0649;;;;N;;;;;
+FD79;ARABIC LIGATURE GHAIN WITH MEEM WITH MEEM FINAL FORM;Lo;0;AL;<final> 063A 0645 0645;;;;N;;;;;
+FD7A;ARABIC LIGATURE GHAIN WITH MEEM WITH YEH FINAL FORM;Lo;0;AL;<final> 063A 0645 064A;;;;N;;;;;
+FD7B;ARABIC LIGATURE GHAIN WITH MEEM WITH ALEF MAKSURA FINAL FORM;Lo;0;AL;<final> 063A 0645 0649;;;;N;;;;;
+FD7C;ARABIC LIGATURE FEH WITH KHAH WITH MEEM FINAL FORM;Lo;0;AL;<final> 0641 062E 0645;;;;N;;;;;
+FD7D;ARABIC LIGATURE FEH WITH KHAH WITH MEEM INITIAL FORM;Lo;0;AL;<initial> 0641 062E 0645;;;;N;;;;;
+FD7E;ARABIC LIGATURE QAF WITH MEEM WITH HAH FINAL FORM;Lo;0;AL;<final> 0642 0645 062D;;;;N;;;;;
+FD7F;ARABIC LIGATURE QAF WITH MEEM WITH MEEM FINAL FORM;Lo;0;AL;<final> 0642 0645 0645;;;;N;;;;;
+FD80;ARABIC LIGATURE LAM WITH HAH WITH MEEM FINAL FORM;Lo;0;AL;<final> 0644 062D 0645;;;;N;;;;;
+FD81;ARABIC LIGATURE LAM WITH HAH WITH YEH FINAL FORM;Lo;0;AL;<final> 0644 062D 064A;;;;N;;;;;
+FD82;ARABIC LIGATURE LAM WITH HAH WITH ALEF MAKSURA FINAL FORM;Lo;0;AL;<final> 0644 062D 0649;;;;N;;;;;
+FD83;ARABIC LIGATURE LAM WITH JEEM WITH JEEM INITIAL FORM;Lo;0;AL;<initial> 0644 062C 062C;;;;N;;;;;
+FD84;ARABIC LIGATURE LAM WITH JEEM WITH JEEM FINAL FORM;Lo;0;AL;<final> 0644 062C 062C;;;;N;;;;;
+FD85;ARABIC LIGATURE LAM WITH KHAH WITH MEEM FINAL FORM;Lo;0;AL;<final> 0644 062E 0645;;;;N;;;;;
+FD86;ARABIC LIGATURE LAM WITH KHAH WITH MEEM INITIAL FORM;Lo;0;AL;<initial> 0644 062E 0645;;;;N;;;;;
+FD87;ARABIC LIGATURE LAM WITH MEEM WITH HAH FINAL FORM;Lo;0;AL;<final> 0644 0645 062D;;;;N;;;;;
+FD88;ARABIC LIGATURE LAM WITH MEEM WITH HAH INITIAL FORM;Lo;0;AL;<initial> 0644 0645 062D;;;;N;;;;;
+FD89;ARABIC LIGATURE MEEM WITH HAH WITH JEEM INITIAL FORM;Lo;0;AL;<initial> 0645 062D 062C;;;;N;;;;;
+FD8A;ARABIC LIGATURE MEEM WITH HAH WITH MEEM INITIAL FORM;Lo;0;AL;<initial> 0645 062D 0645;;;;N;;;;;
+FD8B;ARABIC LIGATURE MEEM WITH HAH WITH YEH FINAL FORM;Lo;0;AL;<final> 0645 062D 064A;;;;N;;;;;
+FD8C;ARABIC LIGATURE MEEM WITH JEEM WITH HAH INITIAL FORM;Lo;0;AL;<initial> 0645 062C 062D;;;;N;;;;;
+FD8D;ARABIC LIGATURE MEEM WITH JEEM WITH MEEM INITIAL FORM;Lo;0;AL;<initial> 0645 062C 0645;;;;N;;;;;
+FD8E;ARABIC LIGATURE MEEM WITH KHAH WITH JEEM INITIAL FORM;Lo;0;AL;<initial> 0645 062E 062C;;;;N;;;;;
+FD8F;ARABIC LIGATURE MEEM WITH KHAH WITH MEEM INITIAL FORM;Lo;0;AL;<initial> 0645 062E 0645;;;;N;;;;;
+FD92;ARABIC LIGATURE MEEM WITH JEEM WITH KHAH INITIAL FORM;Lo;0;AL;<initial> 0645 062C 062E;;;;N;;;;;
+FD93;ARABIC LIGATURE HEH WITH MEEM WITH JEEM INITIAL FORM;Lo;0;AL;<initial> 0647 0645 062C;;;;N;;;;;
+FD94;ARABIC LIGATURE HEH WITH MEEM WITH MEEM INITIAL FORM;Lo;0;AL;<initial> 0647 0645 0645;;;;N;;;;;
+FD95;ARABIC LIGATURE NOON WITH HAH WITH MEEM INITIAL FORM;Lo;0;AL;<initial> 0646 062D 0645;;;;N;;;;;
+FD96;ARABIC LIGATURE NOON WITH HAH WITH ALEF MAKSURA FINAL FORM;Lo;0;AL;<final> 0646 062D 0649;;;;N;;;;;
+FD97;ARABIC LIGATURE NOON WITH JEEM WITH MEEM FINAL FORM;Lo;0;AL;<final> 0646 062C 0645;;;;N;;;;;
+FD98;ARABIC LIGATURE NOON WITH JEEM WITH MEEM INITIAL FORM;Lo;0;AL;<initial> 0646 062C 0645;;;;N;;;;;
+FD99;ARABIC LIGATURE NOON WITH JEEM WITH ALEF MAKSURA FINAL FORM;Lo;0;AL;<final> 0646 062C 0649;;;;N;;;;;
+FD9A;ARABIC LIGATURE NOON WITH MEEM WITH YEH FINAL FORM;Lo;0;AL;<final> 0646 0645 064A;;;;N;;;;;
+FD9B;ARABIC LIGATURE NOON WITH MEEM WITH ALEF MAKSURA FINAL FORM;Lo;0;AL;<final> 0646 0645 0649;;;;N;;;;;
+FD9C;ARABIC LIGATURE YEH WITH MEEM WITH MEEM FINAL FORM;Lo;0;AL;<final> 064A 0645 0645;;;;N;;;;;
+FD9D;ARABIC LIGATURE YEH WITH MEEM WITH MEEM INITIAL FORM;Lo;0;AL;<initial> 064A 0645 0645;;;;N;;;;;
+FD9E;ARABIC LIGATURE BEH WITH KHAH WITH YEH FINAL FORM;Lo;0;AL;<final> 0628 062E 064A;;;;N;;;;;
+FD9F;ARABIC LIGATURE TEH WITH JEEM WITH YEH FINAL FORM;Lo;0;AL;<final> 062A 062C 064A;;;;N;;;;;
+FDA0;ARABIC LIGATURE TEH WITH JEEM WITH ALEF MAKSURA FINAL FORM;Lo;0;AL;<final> 062A 062C 0649;;;;N;;;;;
+FDA1;ARABIC LIGATURE TEH WITH KHAH WITH YEH FINAL FORM;Lo;0;AL;<final> 062A 062E 064A;;;;N;;;;;
+FDA2;ARABIC LIGATURE TEH WITH KHAH WITH ALEF MAKSURA FINAL FORM;Lo;0;AL;<final> 062A 062E 0649;;;;N;;;;;
+FDA3;ARABIC LIGATURE TEH WITH MEEM WITH YEH FINAL FORM;Lo;0;AL;<final> 062A 0645 064A;;;;N;;;;;
+FDA4;ARABIC LIGATURE TEH WITH MEEM WITH ALEF MAKSURA FINAL FORM;Lo;0;AL;<final> 062A 0645 0649;;;;N;;;;;
+FDA5;ARABIC LIGATURE JEEM WITH MEEM WITH YEH FINAL FORM;Lo;0;AL;<final> 062C 0645 064A;;;;N;;;;;
+FDA6;ARABIC LIGATURE JEEM WITH HAH WITH ALEF MAKSURA FINAL FORM;Lo;0;AL;<final> 062C 062D 0649;;;;N;;;;;
+FDA7;ARABIC LIGATURE JEEM WITH MEEM WITH ALEF MAKSURA FINAL FORM;Lo;0;AL;<final> 062C 0645 0649;;;;N;;;;;
+FDA8;ARABIC LIGATURE SEEN WITH KHAH WITH ALEF MAKSURA FINAL FORM;Lo;0;AL;<final> 0633 062E 0649;;;;N;;;;;
+FDA9;ARABIC LIGATURE SAD WITH HAH WITH YEH FINAL FORM;Lo;0;AL;<final> 0635 062D 064A;;;;N;;;;;
+FDAA;ARABIC LIGATURE SHEEN WITH HAH WITH YEH FINAL FORM;Lo;0;AL;<final> 0634 062D 064A;;;;N;;;;;
+FDAB;ARABIC LIGATURE DAD WITH HAH WITH YEH FINAL FORM;Lo;0;AL;<final> 0636 062D 064A;;;;N;;;;;
+FDAC;ARABIC LIGATURE LAM WITH JEEM WITH YEH FINAL FORM;Lo;0;AL;<final> 0644 062C 064A;;;;N;;;;;
+FDAD;ARABIC LIGATURE LAM WITH MEEM WITH YEH FINAL FORM;Lo;0;AL;<final> 0644 0645 064A;;;;N;;;;;
+FDAE;ARABIC LIGATURE YEH WITH HAH WITH YEH FINAL FORM;Lo;0;AL;<final> 064A 062D 064A;;;;N;;;;;
+FDAF;ARABIC LIGATURE YEH WITH JEEM WITH YEH FINAL FORM;Lo;0;AL;<final> 064A 062C 064A;;;;N;;;;;
+FDB0;ARABIC LIGATURE YEH WITH MEEM WITH YEH FINAL FORM;Lo;0;AL;<final> 064A 0645 064A;;;;N;;;;;
+FDB1;ARABIC LIGATURE MEEM WITH MEEM WITH YEH FINAL FORM;Lo;0;AL;<final> 0645 0645 064A;;;;N;;;;;
+FDB2;ARABIC LIGATURE QAF WITH MEEM WITH YEH FINAL FORM;Lo;0;AL;<final> 0642 0645 064A;;;;N;;;;;
+FDB3;ARABIC LIGATURE NOON WITH HAH WITH YEH FINAL FORM;Lo;0;AL;<final> 0646 062D 064A;;;;N;;;;;
+FDB4;ARABIC LIGATURE QAF WITH MEEM WITH HAH INITIAL FORM;Lo;0;AL;<initial> 0642 0645 062D;;;;N;;;;;
+FDB5;ARABIC LIGATURE LAM WITH HAH WITH MEEM INITIAL FORM;Lo;0;AL;<initial> 0644 062D 0645;;;;N;;;;;
+FDB6;ARABIC LIGATURE AIN WITH MEEM WITH YEH FINAL FORM;Lo;0;AL;<final> 0639 0645 064A;;;;N;;;;;
+FDB7;ARABIC LIGATURE KAF WITH MEEM WITH YEH FINAL FORM;Lo;0;AL;<final> 0643 0645 064A;;;;N;;;;;
+FDB8;ARABIC LIGATURE NOON WITH JEEM WITH HAH INITIAL FORM;Lo;0;AL;<initial> 0646 062C 062D;;;;N;;;;;
+FDB9;ARABIC LIGATURE MEEM WITH KHAH WITH YEH FINAL FORM;Lo;0;AL;<final> 0645 062E 064A;;;;N;;;;;
+FDBA;ARABIC LIGATURE LAM WITH JEEM WITH MEEM INITIAL FORM;Lo;0;AL;<initial> 0644 062C 0645;;;;N;;;;;
+FDBB;ARABIC LIGATURE KAF WITH MEEM WITH MEEM FINAL FORM;Lo;0;AL;<final> 0643 0645 0645;;;;N;;;;;
+FDBC;ARABIC LIGATURE LAM WITH JEEM WITH MEEM FINAL FORM;Lo;0;AL;<final> 0644 062C 0645;;;;N;;;;;
+FDBD;ARABIC LIGATURE NOON WITH JEEM WITH HAH FINAL FORM;Lo;0;AL;<final> 0646 062C 062D;;;;N;;;;;
+FDBE;ARABIC LIGATURE JEEM WITH HAH WITH YEH FINAL FORM;Lo;0;AL;<final> 062C 062D 064A;;;;N;;;;;
+FDBF;ARABIC LIGATURE HAH WITH JEEM WITH YEH FINAL FORM;Lo;0;AL;<final> 062D 062C 064A;;;;N;;;;;
+FDC0;ARABIC LIGATURE MEEM WITH JEEM WITH YEH FINAL FORM;Lo;0;AL;<final> 0645 062C 064A;;;;N;;;;;
+FDC1;ARABIC LIGATURE FEH WITH MEEM WITH YEH FINAL FORM;Lo;0;AL;<final> 0641 0645 064A;;;;N;;;;;
+FDC2;ARABIC LIGATURE BEH WITH HAH WITH YEH FINAL FORM;Lo;0;AL;<final> 0628 062D 064A;;;;N;;;;;
+FDC3;ARABIC LIGATURE KAF WITH MEEM WITH MEEM INITIAL FORM;Lo;0;AL;<initial> 0643 0645 0645;;;;N;;;;;
+FDC4;ARABIC LIGATURE AIN WITH JEEM WITH MEEM INITIAL FORM;Lo;0;AL;<initial> 0639 062C 0645;;;;N;;;;;
+FDC5;ARABIC LIGATURE SAD WITH MEEM WITH MEEM INITIAL FORM;Lo;0;AL;<initial> 0635 0645 0645;;;;N;;;;;
+FDC6;ARABIC LIGATURE SEEN WITH KHAH WITH YEH FINAL FORM;Lo;0;AL;<final> 0633 062E 064A;;;;N;;;;;
+FDC7;ARABIC LIGATURE NOON WITH JEEM WITH YEH FINAL FORM;Lo;0;AL;<final> 0646 062C 064A;;;;N;;;;;
+FDF0;ARABIC LIGATURE SALLA USED AS KORANIC STOP SIGN ISOLATED FORM;Lo;0;AL;<isolated> 0635 0644 06D2;;;;N;;;;;
+FDF1;ARABIC LIGATURE QALA USED AS KORANIC STOP SIGN ISOLATED FORM;Lo;0;AL;<isolated> 0642 0644 06D2;;;;N;;;;;
+FDF2;ARABIC LIGATURE ALLAH ISOLATED FORM;Lo;0;AL;<isolated> 0627 0644 0644 0647;;;;N;;;;;
+FDF3;ARABIC LIGATURE AKBAR ISOLATED FORM;Lo;0;AL;<isolated> 0627 0643 0628 0631;;;;N;;;;;
+FDF4;ARABIC LIGATURE MOHAMMAD ISOLATED FORM;Lo;0;AL;<isolated> 0645 062D 0645 062F;;;;N;;;;;
+FDF5;ARABIC LIGATURE SALAM ISOLATED FORM;Lo;0;AL;<isolated> 0635 0644 0639 0645;;;;N;;;;;
+FDF6;ARABIC LIGATURE RASOUL ISOLATED FORM;Lo;0;AL;<isolated> 0631 0633 0648 0644;;;;N;;;;;
+FDF7;ARABIC LIGATURE ALAYHE ISOLATED FORM;Lo;0;AL;<isolated> 0639 0644 064A 0647;;;;N;;;;;
+FDF8;ARABIC LIGATURE WASALLAM ISOLATED FORM;Lo;0;AL;<isolated> 0648 0633 0644 0645;;;;N;;;;;
+FDF9;ARABIC LIGATURE SALLA ISOLATED FORM;Lo;0;AL;<isolated> 0635 0644 0649;;;;N;;;;;
+FDFA;ARABIC LIGATURE SALLALLAHOU ALAYHE WASALLAM;Lo;0;AL;<isolated> 0635 0644 0649 0020 0627 0644 0644 0647 0020 0639 0644 064A 0647 0020 0648 0633 0644 0645;;;;N;ARABIC LETTER SALLALLAHOU ALAYHE WASALLAM;;;;
+FDFB;ARABIC LIGATURE JALLAJALALOUHOU;Lo;0;AL;<isolated> 062C 0644 0020 062C 0644 0627 0644 0647;;;;N;ARABIC LETTER JALLAJALALOUHOU;;;;
+FDFC;RIAL SIGN;Sc;0;AL;<isolated> 0631 06CC 0627 0644;;;;N;;;;;
+FDFD;ARABIC LIGATURE BISMILLAH AR-RAHMAN AR-RAHEEM;So;0;ON;;;;;N;;;;;
+FE00;VARIATION SELECTOR-1;Mn;0;NSM;;;;;N;;;;;
+FE01;VARIATION SELECTOR-2;Mn;0;NSM;;;;;N;;;;;
+FE02;VARIATION SELECTOR-3;Mn;0;NSM;;;;;N;;;;;
+FE03;VARIATION SELECTOR-4;Mn;0;NSM;;;;;N;;;;;
+FE04;VARIATION SELECTOR-5;Mn;0;NSM;;;;;N;;;;;
+FE05;VARIATION SELECTOR-6;Mn;0;NSM;;;;;N;;;;;
+FE06;VARIATION SELECTOR-7;Mn;0;NSM;;;;;N;;;;;
+FE07;VARIATION SELECTOR-8;Mn;0;NSM;;;;;N;;;;;
+FE08;VARIATION SELECTOR-9;Mn;0;NSM;;;;;N;;;;;
+FE09;VARIATION SELECTOR-10;Mn;0;NSM;;;;;N;;;;;
+FE0A;VARIATION SELECTOR-11;Mn;0;NSM;;;;;N;;;;;
+FE0B;VARIATION SELECTOR-12;Mn;0;NSM;;;;;N;;;;;
+FE0C;VARIATION SELECTOR-13;Mn;0;NSM;;;;;N;;;;;
+FE0D;VARIATION SELECTOR-14;Mn;0;NSM;;;;;N;;;;;
+FE0E;VARIATION SELECTOR-15;Mn;0;NSM;;;;;N;;;;;
+FE0F;VARIATION SELECTOR-16;Mn;0;NSM;;;;;N;;;;;
+FE10;PRESENTATION FORM FOR VERTICAL COMMA;Po;0;ON;<vertical> 002C;;;;N;;;;;
+FE11;PRESENTATION FORM FOR VERTICAL IDEOGRAPHIC COMMA;Po;0;ON;<vertical> 3001;;;;N;;;;;
+FE12;PRESENTATION FORM FOR VERTICAL IDEOGRAPHIC FULL STOP;Po;0;ON;<vertical> 3002;;;;N;;;;;
+FE13;PRESENTATION FORM FOR VERTICAL COLON;Po;0;ON;<vertical> 003A;;;;N;;;;;
+FE14;PRESENTATION FORM FOR VERTICAL SEMICOLON;Po;0;ON;<vertical> 003B;;;;N;;;;;
+FE15;PRESENTATION FORM FOR VERTICAL EXCLAMATION MARK;Po;0;ON;<vertical> 0021;;;;N;;;;;
+FE16;PRESENTATION FORM FOR VERTICAL QUESTION MARK;Po;0;ON;<vertical> 003F;;;;N;;;;;
+FE17;PRESENTATION FORM FOR VERTICAL LEFT WHITE LENTICULAR BRACKET;Ps;0;ON;<vertical> 3016;;;;N;;;;;
+FE18;PRESENTATION FORM FOR VERTICAL RIGHT WHITE LENTICULAR BRAKCET;Pe;0;ON;<vertical> 3017;;;;N;;;;;
+FE19;PRESENTATION FORM FOR VERTICAL HORIZONTAL ELLIPSIS;Po;0;ON;<vertical> 2026;;;;N;;;;;
+FE20;COMBINING LIGATURE LEFT HALF;Mn;230;NSM;;;;;N;;;;;
+FE21;COMBINING LIGATURE RIGHT HALF;Mn;230;NSM;;;;;N;;;;;
+FE22;COMBINING DOUBLE TILDE LEFT HALF;Mn;230;NSM;;;;;N;;;;;
+FE23;COMBINING DOUBLE TILDE RIGHT HALF;Mn;230;NSM;;;;;N;;;;;
+FE24;COMBINING MACRON LEFT HALF;Mn;230;NSM;;;;;N;;;;;
+FE25;COMBINING MACRON RIGHT HALF;Mn;230;NSM;;;;;N;;;;;
+FE26;COMBINING CONJOINING MACRON;Mn;230;NSM;;;;;N;;;;;
+FE30;PRESENTATION FORM FOR VERTICAL TWO DOT LEADER;Po;0;ON;<vertical> 2025;;;;N;GLYPH FOR VERTICAL TWO DOT LEADER;;;;
+FE31;PRESENTATION FORM FOR VERTICAL EM DASH;Pd;0;ON;<vertical> 2014;;;;N;GLYPH FOR VERTICAL EM DASH;;;;
+FE32;PRESENTATION FORM FOR VERTICAL EN DASH;Pd;0;ON;<vertical> 2013;;;;N;GLYPH FOR VERTICAL EN DASH;;;;
+FE33;PRESENTATION FORM FOR VERTICAL LOW LINE;Pc;0;ON;<vertical> 005F;;;;N;GLYPH FOR VERTICAL SPACING UNDERSCORE;;;;
+FE34;PRESENTATION FORM FOR VERTICAL WAVY LOW LINE;Pc;0;ON;<vertical> 005F;;;;N;GLYPH FOR VERTICAL SPACING WAVY UNDERSCORE;;;;
+FE35;PRESENTATION FORM FOR VERTICAL LEFT PARENTHESIS;Ps;0;ON;<vertical> 0028;;;;N;GLYPH FOR VERTICAL OPENING PARENTHESIS;;;;
+FE36;PRESENTATION FORM FOR VERTICAL RIGHT PARENTHESIS;Pe;0;ON;<vertical> 0029;;;;N;GLYPH FOR VERTICAL CLOSING PARENTHESIS;;;;
+FE37;PRESENTATION FORM FOR VERTICAL LEFT CURLY BRACKET;Ps;0;ON;<vertical> 007B;;;;N;GLYPH FOR VERTICAL OPENING CURLY BRACKET;;;;
+FE38;PRESENTATION FORM FOR VERTICAL RIGHT CURLY BRACKET;Pe;0;ON;<vertical> 007D;;;;N;GLYPH FOR VERTICAL CLOSING CURLY BRACKET;;;;
+FE39;PRESENTATION FORM FOR VERTICAL LEFT TORTOISE SHELL BRACKET;Ps;0;ON;<vertical> 3014;;;;N;GLYPH FOR VERTICAL OPENING TORTOISE SHELL BRACKET;;;;
+FE3A;PRESENTATION FORM FOR VERTICAL RIGHT TORTOISE SHELL BRACKET;Pe;0;ON;<vertical> 3015;;;;N;GLYPH FOR VERTICAL CLOSING TORTOISE SHELL BRACKET;;;;
+FE3B;PRESENTATION FORM FOR VERTICAL LEFT BLACK LENTICULAR BRACKET;Ps;0;ON;<vertical> 3010;;;;N;GLYPH FOR VERTICAL OPENING BLACK LENTICULAR BRACKET;;;;
+FE3C;PRESENTATION FORM FOR VERTICAL RIGHT BLACK LENTICULAR BRACKET;Pe;0;ON;<vertical> 3011;;;;N;GLYPH FOR VERTICAL CLOSING BLACK LENTICULAR BRACKET;;;;
+FE3D;PRESENTATION FORM FOR VERTICAL LEFT DOUBLE ANGLE BRACKET;Ps;0;ON;<vertical> 300A;;;;N;GLYPH FOR VERTICAL OPENING DOUBLE ANGLE BRACKET;;;;
+FE3E;PRESENTATION FORM FOR VERTICAL RIGHT DOUBLE ANGLE BRACKET;Pe;0;ON;<vertical> 300B;;;;N;GLYPH FOR VERTICAL CLOSING DOUBLE ANGLE BRACKET;;;;
+FE3F;PRESENTATION FORM FOR VERTICAL LEFT ANGLE BRACKET;Ps;0;ON;<vertical> 3008;;;;N;GLYPH FOR VERTICAL OPENING ANGLE BRACKET;;;;
+FE40;PRESENTATION FORM FOR VERTICAL RIGHT ANGLE BRACKET;Pe;0;ON;<vertical> 3009;;;;N;GLYPH FOR VERTICAL CLOSING ANGLE BRACKET;;;;
+FE41;PRESENTATION FORM FOR VERTICAL LEFT CORNER BRACKET;Ps;0;ON;<vertical> 300C;;;;N;GLYPH FOR VERTICAL OPENING CORNER BRACKET;;;;
+FE42;PRESENTATION FORM FOR VERTICAL RIGHT CORNER BRACKET;Pe;0;ON;<vertical> 300D;;;;N;GLYPH FOR VERTICAL CLOSING CORNER BRACKET;;;;
+FE43;PRESENTATION FORM FOR VERTICAL LEFT WHITE CORNER BRACKET;Ps;0;ON;<vertical> 300E;;;;N;GLYPH FOR VERTICAL OPENING WHITE CORNER BRACKET;;;;
+FE44;PRESENTATION FORM FOR VERTICAL RIGHT WHITE CORNER BRACKET;Pe;0;ON;<vertical> 300F;;;;N;GLYPH FOR VERTICAL CLOSING WHITE CORNER BRACKET;;;;
+FE45;SESAME DOT;Po;0;ON;;;;;N;;;;;
+FE46;WHITE SESAME DOT;Po;0;ON;;;;;N;;;;;
+FE47;PRESENTATION FORM FOR VERTICAL LEFT SQUARE BRACKET;Ps;0;ON;<vertical> 005B;;;;N;;;;;
+FE48;PRESENTATION FORM FOR VERTICAL RIGHT SQUARE BRACKET;Pe;0;ON;<vertical> 005D;;;;N;;;;;
+FE49;DASHED OVERLINE;Po;0;ON;<compat> 203E;;;;N;SPACING DASHED OVERSCORE;;;;
+FE4A;CENTRELINE OVERLINE;Po;0;ON;<compat> 203E;;;;N;SPACING CENTERLINE OVERSCORE;;;;
+FE4B;WAVY OVERLINE;Po;0;ON;<compat> 203E;;;;N;SPACING WAVY OVERSCORE;;;;
+FE4C;DOUBLE WAVY OVERLINE;Po;0;ON;<compat> 203E;;;;N;SPACING DOUBLE WAVY OVERSCORE;;;;
+FE4D;DASHED LOW LINE;Pc;0;ON;<compat> 005F;;;;N;SPACING DASHED UNDERSCORE;;;;
+FE4E;CENTRELINE LOW LINE;Pc;0;ON;<compat> 005F;;;;N;SPACING CENTERLINE UNDERSCORE;;;;
+FE4F;WAVY LOW LINE;Pc;0;ON;<compat> 005F;;;;N;SPACING WAVY UNDERSCORE;;;;
+FE50;SMALL COMMA;Po;0;CS;<small> 002C;;;;N;;;;;
+FE51;SMALL IDEOGRAPHIC COMMA;Po;0;ON;<small> 3001;;;;N;;;;;
+FE52;SMALL FULL STOP;Po;0;CS;<small> 002E;;;;N;SMALL PERIOD;;;;
+FE54;SMALL SEMICOLON;Po;0;ON;<small> 003B;;;;N;;;;;
+FE55;SMALL COLON;Po;0;CS;<small> 003A;;;;N;;;;;
+FE56;SMALL QUESTION MARK;Po;0;ON;<small> 003F;;;;N;;;;;
+FE57;SMALL EXCLAMATION MARK;Po;0;ON;<small> 0021;;;;N;;;;;
+FE58;SMALL EM DASH;Pd;0;ON;<small> 2014;;;;N;;;;;
+FE59;SMALL LEFT PARENTHESIS;Ps;0;ON;<small> 0028;;;;Y;SMALL OPENING PARENTHESIS;;;;
+FE5A;SMALL RIGHT PARENTHESIS;Pe;0;ON;<small> 0029;;;;Y;SMALL CLOSING PARENTHESIS;;;;
+FE5B;SMALL LEFT CURLY BRACKET;Ps;0;ON;<small> 007B;;;;Y;SMALL OPENING CURLY BRACKET;;;;
+FE5C;SMALL RIGHT CURLY BRACKET;Pe;0;ON;<small> 007D;;;;Y;SMALL CLOSING CURLY BRACKET;;;;
+FE5D;SMALL LEFT TORTOISE SHELL BRACKET;Ps;0;ON;<small> 3014;;;;Y;SMALL OPENING TORTOISE SHELL BRACKET;;;;
+FE5E;SMALL RIGHT TORTOISE SHELL BRACKET;Pe;0;ON;<small> 3015;;;;Y;SMALL CLOSING TORTOISE SHELL BRACKET;;;;
+FE5F;SMALL NUMBER SIGN;Po;0;ET;<small> 0023;;;;N;;;;;
+FE60;SMALL AMPERSAND;Po;0;ON;<small> 0026;;;;N;;;;;
+FE61;SMALL ASTERISK;Po;0;ON;<small> 002A;;;;N;;;;;
+FE62;SMALL PLUS SIGN;Sm;0;ES;<small> 002B;;;;N;;;;;
+FE63;SMALL HYPHEN-MINUS;Pd;0;ES;<small> 002D;;;;N;;;;;
+FE64;SMALL LESS-THAN SIGN;Sm;0;ON;<small> 003C;;;;Y;;;;;
+FE65;SMALL GREATER-THAN SIGN;Sm;0;ON;<small> 003E;;;;Y;;;;;
+FE66;SMALL EQUALS SIGN;Sm;0;ON;<small> 003D;;;;N;;;;;
+FE68;SMALL REVERSE SOLIDUS;Po;0;ON;<small> 005C;;;;N;SMALL BACKSLASH;;;;
+FE69;SMALL DOLLAR SIGN;Sc;0;ET;<small> 0024;;;;N;;;;;
+FE6A;SMALL PERCENT SIGN;Po;0;ET;<small> 0025;;;;N;;;;;
+FE6B;SMALL COMMERCIAL AT;Po;0;ON;<small> 0040;;;;N;;;;;
+FE70;ARABIC FATHATAN ISOLATED FORM;Lo;0;AL;<isolated> 0020 064B;;;;N;ARABIC SPACING FATHATAN;;;;
+FE71;ARABIC TATWEEL WITH FATHATAN ABOVE;Lo;0;AL;<medial> 0640 064B;;;;N;ARABIC FATHATAN ON TATWEEL;;;;
+FE72;ARABIC DAMMATAN ISOLATED FORM;Lo;0;AL;<isolated> 0020 064C;;;;N;ARABIC SPACING DAMMATAN;;;;
+FE73;ARABIC TAIL FRAGMENT;Lo;0;AL;;;;;N;;;;;
+FE74;ARABIC KASRATAN ISOLATED FORM;Lo;0;AL;<isolated> 0020 064D;;;;N;ARABIC SPACING KASRATAN;;;;
+FE76;ARABIC FATHA ISOLATED FORM;Lo;0;AL;<isolated> 0020 064E;;;;N;ARABIC SPACING FATHAH;;;;
+FE77;ARABIC FATHA MEDIAL FORM;Lo;0;AL;<medial> 0640 064E;;;;N;ARABIC FATHAH ON TATWEEL;;;;
+FE78;ARABIC DAMMA ISOLATED FORM;Lo;0;AL;<isolated> 0020 064F;;;;N;ARABIC SPACING DAMMAH;;;;
+FE79;ARABIC DAMMA MEDIAL FORM;Lo;0;AL;<medial> 0640 064F;;;;N;ARABIC DAMMAH ON TATWEEL;;;;
+FE7A;ARABIC KASRA ISOLATED FORM;Lo;0;AL;<isolated> 0020 0650;;;;N;ARABIC SPACING KASRAH;;;;
+FE7B;ARABIC KASRA MEDIAL FORM;Lo;0;AL;<medial> 0640 0650;;;;N;ARABIC KASRAH ON TATWEEL;;;;
+FE7C;ARABIC SHADDA ISOLATED FORM;Lo;0;AL;<isolated> 0020 0651;;;;N;ARABIC SPACING SHADDAH;;;;
+FE7D;ARABIC SHADDA MEDIAL FORM;Lo;0;AL;<medial> 0640 0651;;;;N;ARABIC SHADDAH ON TATWEEL;;;;
+FE7E;ARABIC SUKUN ISOLATED FORM;Lo;0;AL;<isolated> 0020 0652;;;;N;ARABIC SPACING SUKUN;;;;
+FE7F;ARABIC SUKUN MEDIAL FORM;Lo;0;AL;<medial> 0640 0652;;;;N;ARABIC SUKUN ON TATWEEL;;;;
+FE80;ARABIC LETTER HAMZA ISOLATED FORM;Lo;0;AL;<isolated> 0621;;;;N;GLYPH FOR ISOLATE ARABIC HAMZAH;;;;
+FE81;ARABIC LETTER ALEF WITH MADDA ABOVE ISOLATED FORM;Lo;0;AL;<isolated> 0622;;;;N;GLYPH FOR ISOLATE ARABIC MADDAH ON ALEF;;;;
+FE82;ARABIC LETTER ALEF WITH MADDA ABOVE FINAL FORM;Lo;0;AL;<final> 0622;;;;N;GLYPH FOR FINAL ARABIC MADDAH ON ALEF;;;;
+FE83;ARABIC LETTER ALEF WITH HAMZA ABOVE ISOLATED FORM;Lo;0;AL;<isolated> 0623;;;;N;GLYPH FOR ISOLATE ARABIC HAMZAH ON ALEF;;;;
+FE84;ARABIC LETTER ALEF WITH HAMZA ABOVE FINAL FORM;Lo;0;AL;<final> 0623;;;;N;GLYPH FOR FINAL ARABIC HAMZAH ON ALEF;;;;
+FE85;ARABIC LETTER WAW WITH HAMZA ABOVE ISOLATED FORM;Lo;0;AL;<isolated> 0624;;;;N;GLYPH FOR ISOLATE ARABIC HAMZAH ON WAW;;;;
+FE86;ARABIC LETTER WAW WITH HAMZA ABOVE FINAL FORM;Lo;0;AL;<final> 0624;;;;N;GLYPH FOR FINAL ARABIC HAMZAH ON WAW;;;;
+FE87;ARABIC LETTER ALEF WITH HAMZA BELOW ISOLATED FORM;Lo;0;AL;<isolated> 0625;;;;N;GLYPH FOR ISOLATE ARABIC HAMZAH UNDER ALEF;;;;
+FE88;ARABIC LETTER ALEF WITH HAMZA BELOW FINAL FORM;Lo;0;AL;<final> 0625;;;;N;GLYPH FOR FINAL ARABIC HAMZAH UNDER ALEF;;;;
+FE89;ARABIC LETTER YEH WITH HAMZA ABOVE ISOLATED FORM;Lo;0;AL;<isolated> 0626;;;;N;GLYPH FOR ISOLATE ARABIC HAMZAH ON YA;;;;
+FE8A;ARABIC LETTER YEH WITH HAMZA ABOVE FINAL FORM;Lo;0;AL;<final> 0626;;;;N;GLYPH FOR FINAL ARABIC HAMZAH ON YA;;;;
+FE8B;ARABIC LETTER YEH WITH HAMZA ABOVE INITIAL FORM;Lo;0;AL;<initial> 0626;;;;N;GLYPH FOR INITIAL ARABIC HAMZAH ON YA;;;;
+FE8C;ARABIC LETTER YEH WITH HAMZA ABOVE MEDIAL FORM;Lo;0;AL;<medial> 0626;;;;N;GLYPH FOR MEDIAL ARABIC HAMZAH ON YA;;;;
+FE8D;ARABIC LETTER ALEF ISOLATED FORM;Lo;0;AL;<isolated> 0627;;;;N;GLYPH FOR ISOLATE ARABIC ALEF;;;;
+FE8E;ARABIC LETTER ALEF FINAL FORM;Lo;0;AL;<final> 0627;;;;N;GLYPH FOR FINAL ARABIC ALEF;;;;
+FE8F;ARABIC LETTER BEH ISOLATED FORM;Lo;0;AL;<isolated> 0628;;;;N;GLYPH FOR ISOLATE ARABIC BAA;;;;
+FE90;ARABIC LETTER BEH FINAL FORM;Lo;0;AL;<final> 0628;;;;N;GLYPH FOR FINAL ARABIC BAA;;;;
+FE91;ARABIC LETTER BEH INITIAL FORM;Lo;0;AL;<initial> 0628;;;;N;GLYPH FOR INITIAL ARABIC BAA;;;;
+FE92;ARABIC LETTER BEH MEDIAL FORM;Lo;0;AL;<medial> 0628;;;;N;GLYPH FOR MEDIAL ARABIC BAA;;;;
+FE93;ARABIC LETTER TEH MARBUTA ISOLATED FORM;Lo;0;AL;<isolated> 0629;;;;N;GLYPH FOR ISOLATE ARABIC TAA MARBUTAH;;;;
+FE94;ARABIC LETTER TEH MARBUTA FINAL FORM;Lo;0;AL;<final> 0629;;;;N;GLYPH FOR FINAL ARABIC TAA MARBUTAH;;;;
+FE95;ARABIC LETTER TEH ISOLATED FORM;Lo;0;AL;<isolated> 062A;;;;N;GLYPH FOR ISOLATE ARABIC TAA;;;;
+FE96;ARABIC LETTER TEH FINAL FORM;Lo;0;AL;<final> 062A;;;;N;GLYPH FOR FINAL ARABIC TAA;;;;
+FE97;ARABIC LETTER TEH INITIAL FORM;Lo;0;AL;<initial> 062A;;;;N;GLYPH FOR INITIAL ARABIC TAA;;;;
+FE98;ARABIC LETTER TEH MEDIAL FORM;Lo;0;AL;<medial> 062A;;;;N;GLYPH FOR MEDIAL ARABIC TAA;;;;
+FE99;ARABIC LETTER THEH ISOLATED FORM;Lo;0;AL;<isolated> 062B;;;;N;GLYPH FOR ISOLATE ARABIC THAA;;;;
+FE9A;ARABIC LETTER THEH FINAL FORM;Lo;0;AL;<final> 062B;;;;N;GLYPH FOR FINAL ARABIC THAA;;;;
+FE9B;ARABIC LETTER THEH INITIAL FORM;Lo;0;AL;<initial> 062B;;;;N;GLYPH FOR INITIAL ARABIC THAA;;;;
+FE9C;ARABIC LETTER THEH MEDIAL FORM;Lo;0;AL;<medial> 062B;;;;N;GLYPH FOR MEDIAL ARABIC THAA;;;;
+FE9D;ARABIC LETTER JEEM ISOLATED FORM;Lo;0;AL;<isolated> 062C;;;;N;GLYPH FOR ISOLATE ARABIC JEEM;;;;
+FE9E;ARABIC LETTER JEEM FINAL FORM;Lo;0;AL;<final> 062C;;;;N;GLYPH FOR FINAL ARABIC JEEM;;;;
+FE9F;ARABIC LETTER JEEM INITIAL FORM;Lo;0;AL;<initial> 062C;;;;N;GLYPH FOR INITIAL ARABIC JEEM;;;;
+FEA0;ARABIC LETTER JEEM MEDIAL FORM;Lo;0;AL;<medial> 062C;;;;N;GLYPH FOR MEDIAL ARABIC JEEM;;;;
+FEA1;ARABIC LETTER HAH ISOLATED FORM;Lo;0;AL;<isolated> 062D;;;;N;GLYPH FOR ISOLATE ARABIC HAA;;;;
+FEA2;ARABIC LETTER HAH FINAL FORM;Lo;0;AL;<final> 062D;;;;N;GLYPH FOR FINAL ARABIC HAA;;;;
+FEA3;ARABIC LETTER HAH INITIAL FORM;Lo;0;AL;<initial> 062D;;;;N;GLYPH FOR INITIAL ARABIC HAA;;;;
+FEA4;ARABIC LETTER HAH MEDIAL FORM;Lo;0;AL;<medial> 062D;;;;N;GLYPH FOR MEDIAL ARABIC HAA;;;;
+FEA5;ARABIC LETTER KHAH ISOLATED FORM;Lo;0;AL;<isolated> 062E;;;;N;GLYPH FOR ISOLATE ARABIC KHAA;;;;
+FEA6;ARABIC LETTER KHAH FINAL FORM;Lo;0;AL;<final> 062E;;;;N;GLYPH FOR FINAL ARABIC KHAA;;;;
+FEA7;ARABIC LETTER KHAH INITIAL FORM;Lo;0;AL;<initial> 062E;;;;N;GLYPH FOR INITIAL ARABIC KHAA;;;;
+FEA8;ARABIC LETTER KHAH MEDIAL FORM;Lo;0;AL;<medial> 062E;;;;N;GLYPH FOR MEDIAL ARABIC KHAA;;;;
+FEA9;ARABIC LETTER DAL ISOLATED FORM;Lo;0;AL;<isolated> 062F;;;;N;GLYPH FOR ISOLATE ARABIC DAL;;;;
+FEAA;ARABIC LETTER DAL FINAL FORM;Lo;0;AL;<final> 062F;;;;N;GLYPH FOR FINAL ARABIC DAL;;;;
+FEAB;ARABIC LETTER THAL ISOLATED FORM;Lo;0;AL;<isolated> 0630;;;;N;GLYPH FOR ISOLATE ARABIC THAL;;;;
+FEAC;ARABIC LETTER THAL FINAL FORM;Lo;0;AL;<final> 0630;;;;N;GLYPH FOR FINAL ARABIC THAL;;;;
+FEAD;ARABIC LETTER REH ISOLATED FORM;Lo;0;AL;<isolated> 0631;;;;N;GLYPH FOR ISOLATE ARABIC RA;;;;
+FEAE;ARABIC LETTER REH FINAL FORM;Lo;0;AL;<final> 0631;;;;N;GLYPH FOR FINAL ARABIC RA;;;;
+FEAF;ARABIC LETTER ZAIN ISOLATED FORM;Lo;0;AL;<isolated> 0632;;;;N;GLYPH FOR ISOLATE ARABIC ZAIN;;;;
+FEB0;ARABIC LETTER ZAIN FINAL FORM;Lo;0;AL;<final> 0632;;;;N;GLYPH FOR FINAL ARABIC ZAIN;;;;
+FEB1;ARABIC LETTER SEEN ISOLATED FORM;Lo;0;AL;<isolated> 0633;;;;N;GLYPH FOR ISOLATE ARABIC SEEN;;;;
+FEB2;ARABIC LETTER SEEN FINAL FORM;Lo;0;AL;<final> 0633;;;;N;GLYPH FOR FINAL ARABIC SEEN;;;;
+FEB3;ARABIC LETTER SEEN INITIAL FORM;Lo;0;AL;<initial> 0633;;;;N;GLYPH FOR INITIAL ARABIC SEEN;;;;
+FEB4;ARABIC LETTER SEEN MEDIAL FORM;Lo;0;AL;<medial> 0633;;;;N;GLYPH FOR MEDIAL ARABIC SEEN;;;;
+FEB5;ARABIC LETTER SHEEN ISOLATED FORM;Lo;0;AL;<isolated> 0634;;;;N;GLYPH FOR ISOLATE ARABIC SHEEN;;;;
+FEB6;ARABIC LETTER SHEEN FINAL FORM;Lo;0;AL;<final> 0634;;;;N;GLYPH FOR FINAL ARABIC SHEEN;;;;
+FEB7;ARABIC LETTER SHEEN INITIAL FORM;Lo;0;AL;<initial> 0634;;;;N;GLYPH FOR INITIAL ARABIC SHEEN;;;;
+FEB8;ARABIC LETTER SHEEN MEDIAL FORM;Lo;0;AL;<medial> 0634;;;;N;GLYPH FOR MEDIAL ARABIC SHEEN;;;;
+FEB9;ARABIC LETTER SAD ISOLATED FORM;Lo;0;AL;<isolated> 0635;;;;N;GLYPH FOR ISOLATE ARABIC SAD;;;;
+FEBA;ARABIC LETTER SAD FINAL FORM;Lo;0;AL;<final> 0635;;;;N;GLYPH FOR FINAL ARABIC SAD;;;;
+FEBB;ARABIC LETTER SAD INITIAL FORM;Lo;0;AL;<initial> 0635;;;;N;GLYPH FOR INITIAL ARABIC SAD;;;;
+FEBC;ARABIC LETTER SAD MEDIAL FORM;Lo;0;AL;<medial> 0635;;;;N;GLYPH FOR MEDIAL ARABIC SAD;;;;
+FEBD;ARABIC LETTER DAD ISOLATED FORM;Lo;0;AL;<isolated> 0636;;;;N;GLYPH FOR ISOLATE ARABIC DAD;;;;
+FEBE;ARABIC LETTER DAD FINAL FORM;Lo;0;AL;<final> 0636;;;;N;GLYPH FOR FINAL ARABIC DAD;;;;
+FEBF;ARABIC LETTER DAD INITIAL FORM;Lo;0;AL;<initial> 0636;;;;N;GLYPH FOR INITIAL ARABIC DAD;;;;
+FEC0;ARABIC LETTER DAD MEDIAL FORM;Lo;0;AL;<medial> 0636;;;;N;GLYPH FOR MEDIAL ARABIC DAD;;;;
+FEC1;ARABIC LETTER TAH ISOLATED FORM;Lo;0;AL;<isolated> 0637;;;;N;GLYPH FOR ISOLATE ARABIC TAH;;;;
+FEC2;ARABIC LETTER TAH FINAL FORM;Lo;0;AL;<final> 0637;;;;N;GLYPH FOR FINAL ARABIC TAH;;;;
+FEC3;ARABIC LETTER TAH INITIAL FORM;Lo;0;AL;<initial> 0637;;;;N;GLYPH FOR INITIAL ARABIC TAH;;;;
+FEC4;ARABIC LETTER TAH MEDIAL FORM;Lo;0;AL;<medial> 0637;;;;N;GLYPH FOR MEDIAL ARABIC TAH;;;;
+FEC5;ARABIC LETTER ZAH ISOLATED FORM;Lo;0;AL;<isolated> 0638;;;;N;GLYPH FOR ISOLATE ARABIC DHAH;;;;
+FEC6;ARABIC LETTER ZAH FINAL FORM;Lo;0;AL;<final> 0638;;;;N;GLYPH FOR FINAL ARABIC DHAH;;;;
+FEC7;ARABIC LETTER ZAH INITIAL FORM;Lo;0;AL;<initial> 0638;;;;N;GLYPH FOR INITIAL ARABIC DHAH;;;;
+FEC8;ARABIC LETTER ZAH MEDIAL FORM;Lo;0;AL;<medial> 0638;;;;N;GLYPH FOR MEDIAL ARABIC DHAH;;;;
+FEC9;ARABIC LETTER AIN ISOLATED FORM;Lo;0;AL;<isolated> 0639;;;;N;GLYPH FOR ISOLATE ARABIC AIN;;;;
+FECA;ARABIC LETTER AIN FINAL FORM;Lo;0;AL;<final> 0639;;;;N;GLYPH FOR FINAL ARABIC AIN;;;;
+FECB;ARABIC LETTER AIN INITIAL FORM;Lo;0;AL;<initial> 0639;;;;N;GLYPH FOR INITIAL ARABIC AIN;;;;
+FECC;ARABIC LETTER AIN MEDIAL FORM;Lo;0;AL;<medial> 0639;;;;N;GLYPH FOR MEDIAL ARABIC AIN;;;;
+FECD;ARABIC LETTER GHAIN ISOLATED FORM;Lo;0;AL;<isolated> 063A;;;;N;GLYPH FOR ISOLATE ARABIC GHAIN;;;;
+FECE;ARABIC LETTER GHAIN FINAL FORM;Lo;0;AL;<final> 063A;;;;N;GLYPH FOR FINAL ARABIC GHAIN;;;;
+FECF;ARABIC LETTER GHAIN INITIAL FORM;Lo;0;AL;<initial> 063A;;;;N;GLYPH FOR INITIAL ARABIC GHAIN;;;;
+FED0;ARABIC LETTER GHAIN MEDIAL FORM;Lo;0;AL;<medial> 063A;;;;N;GLYPH FOR MEDIAL ARABIC GHAIN;;;;
+FED1;ARABIC LETTER FEH ISOLATED FORM;Lo;0;AL;<isolated> 0641;;;;N;GLYPH FOR ISOLATE ARABIC FA;;;;
+FED2;ARABIC LETTER FEH FINAL FORM;Lo;0;AL;<final> 0641;;;;N;GLYPH FOR FINAL ARABIC FA;;;;
+FED3;ARABIC LETTER FEH INITIAL FORM;Lo;0;AL;<initial> 0641;;;;N;GLYPH FOR INITIAL ARABIC FA;;;;
+FED4;ARABIC LETTER FEH MEDIAL FORM;Lo;0;AL;<medial> 0641;;;;N;GLYPH FOR MEDIAL ARABIC FA;;;;
+FED5;ARABIC LETTER QAF ISOLATED FORM;Lo;0;AL;<isolated> 0642;;;;N;GLYPH FOR ISOLATE ARABIC QAF;;;;
+FED6;ARABIC LETTER QAF FINAL FORM;Lo;0;AL;<final> 0642;;;;N;GLYPH FOR FINAL ARABIC QAF;;;;
+FED7;ARABIC LETTER QAF INITIAL FORM;Lo;0;AL;<initial> 0642;;;;N;GLYPH FOR INITIAL ARABIC QAF;;;;
+FED8;ARABIC LETTER QAF MEDIAL FORM;Lo;0;AL;<medial> 0642;;;;N;GLYPH FOR MEDIAL ARABIC QAF;;;;
+FED9;ARABIC LETTER KAF ISOLATED FORM;Lo;0;AL;<isolated> 0643;;;;N;GLYPH FOR ISOLATE ARABIC CAF;;;;
+FEDA;ARABIC LETTER KAF FINAL FORM;Lo;0;AL;<final> 0643;;;;N;GLYPH FOR FINAL ARABIC CAF;;;;
+FEDB;ARABIC LETTER KAF INITIAL FORM;Lo;0;AL;<initial> 0643;;;;N;GLYPH FOR INITIAL ARABIC CAF;;;;
+FEDC;ARABIC LETTER KAF MEDIAL FORM;Lo;0;AL;<medial> 0643;;;;N;GLYPH FOR MEDIAL ARABIC CAF;;;;
+FEDD;ARABIC LETTER LAM ISOLATED FORM;Lo;0;AL;<isolated> 0644;;;;N;GLYPH FOR ISOLATE ARABIC LAM;;;;
+FEDE;ARABIC LETTER LAM FINAL FORM;Lo;0;AL;<final> 0644;;;;N;GLYPH FOR FINAL ARABIC LAM;;;;
+FEDF;ARABIC LETTER LAM INITIAL FORM;Lo;0;AL;<initial> 0644;;;;N;GLYPH FOR INITIAL ARABIC LAM;;;;
+FEE0;ARABIC LETTER LAM MEDIAL FORM;Lo;0;AL;<medial> 0644;;;;N;GLYPH FOR MEDIAL ARABIC LAM;;;;
+FEE1;ARABIC LETTER MEEM ISOLATED FORM;Lo;0;AL;<isolated> 0645;;;;N;GLYPH FOR ISOLATE ARABIC MEEM;;;;
+FEE2;ARABIC LETTER MEEM FINAL FORM;Lo;0;AL;<final> 0645;;;;N;GLYPH FOR FINAL ARABIC MEEM;;;;
+FEE3;ARABIC LETTER MEEM INITIAL FORM;Lo;0;AL;<initial> 0645;;;;N;GLYPH FOR INITIAL ARABIC MEEM;;;;
+FEE4;ARABIC LETTER MEEM MEDIAL FORM;Lo;0;AL;<medial> 0645;;;;N;GLYPH FOR MEDIAL ARABIC MEEM;;;;
+FEE5;ARABIC LETTER NOON ISOLATED FORM;Lo;0;AL;<isolated> 0646;;;;N;GLYPH FOR ISOLATE ARABIC NOON;;;;
+FEE6;ARABIC LETTER NOON FINAL FORM;Lo;0;AL;<final> 0646;;;;N;GLYPH FOR FINAL ARABIC NOON;;;;
+FEE7;ARABIC LETTER NOON INITIAL FORM;Lo;0;AL;<initial> 0646;;;;N;GLYPH FOR INITIAL ARABIC NOON;;;;
+FEE8;ARABIC LETTER NOON MEDIAL FORM;Lo;0;AL;<medial> 0646;;;;N;GLYPH FOR MEDIAL ARABIC NOON;;;;
+FEE9;ARABIC LETTER HEH ISOLATED FORM;Lo;0;AL;<isolated> 0647;;;;N;GLYPH FOR ISOLATE ARABIC HA;;;;
+FEEA;ARABIC LETTER HEH FINAL FORM;Lo;0;AL;<final> 0647;;;;N;GLYPH FOR FINAL ARABIC HA;;;;
+FEEB;ARABIC LETTER HEH INITIAL FORM;Lo;0;AL;<initial> 0647;;;;N;GLYPH FOR INITIAL ARABIC HA;;;;
+FEEC;ARABIC LETTER HEH MEDIAL FORM;Lo;0;AL;<medial> 0647;;;;N;GLYPH FOR MEDIAL ARABIC HA;;;;
+FEED;ARABIC LETTER WAW ISOLATED FORM;Lo;0;AL;<isolated> 0648;;;;N;GLYPH FOR ISOLATE ARABIC WAW;;;;
+FEEE;ARABIC LETTER WAW FINAL FORM;Lo;0;AL;<final> 0648;;;;N;GLYPH FOR FINAL ARABIC WAW;;;;
+FEEF;ARABIC LETTER ALEF MAKSURA ISOLATED FORM;Lo;0;AL;<isolated> 0649;;;;N;GLYPH FOR ISOLATE ARABIC ALEF MAQSURAH;;;;
+FEF0;ARABIC LETTER ALEF MAKSURA FINAL FORM;Lo;0;AL;<final> 0649;;;;N;GLYPH FOR FINAL ARABIC ALEF MAQSURAH;;;;
+FEF1;ARABIC LETTER YEH ISOLATED FORM;Lo;0;AL;<isolated> 064A;;;;N;GLYPH FOR ISOLATE ARABIC YA;;;;
+FEF2;ARABIC LETTER YEH FINAL FORM;Lo;0;AL;<final> 064A;;;;N;GLYPH FOR FINAL ARABIC YA;;;;
+FEF3;ARABIC LETTER YEH INITIAL FORM;Lo;0;AL;<initial> 064A;;;;N;GLYPH FOR INITIAL ARABIC YA;;;;
+FEF4;ARABIC LETTER YEH MEDIAL FORM;Lo;0;AL;<medial> 064A;;;;N;GLYPH FOR MEDIAL ARABIC YA;;;;
+FEF5;ARABIC LIGATURE LAM WITH ALEF WITH MADDA ABOVE ISOLATED FORM;Lo;0;AL;<isolated> 0644 0622;;;;N;GLYPH FOR ISOLATE ARABIC MADDAH ON LIGATURE LAM ALEF;;;;
+FEF6;ARABIC LIGATURE LAM WITH ALEF WITH MADDA ABOVE FINAL FORM;Lo;0;AL;<final> 0644 0622;;;;N;GLYPH FOR FINAL ARABIC MADDAH ON LIGATURE LAM ALEF;;;;
+FEF7;ARABIC LIGATURE LAM WITH ALEF WITH HAMZA ABOVE ISOLATED FORM;Lo;0;AL;<isolated> 0644 0623;;;;N;GLYPH FOR ISOLATE ARABIC HAMZAH ON LIGATURE LAM ALEF;;;;
+FEF8;ARABIC LIGATURE LAM WITH ALEF WITH HAMZA ABOVE FINAL FORM;Lo;0;AL;<final> 0644 0623;;;;N;GLYPH FOR FINAL ARABIC HAMZAH ON LIGATURE LAM ALEF;;;;
+FEF9;ARABIC LIGATURE LAM WITH ALEF WITH HAMZA BELOW ISOLATED FORM;Lo;0;AL;<isolated> 0644 0625;;;;N;GLYPH FOR ISOLATE ARABIC HAMZAH UNDER LIGATURE LAM ALEF;;;;
+FEFA;ARABIC LIGATURE LAM WITH ALEF WITH HAMZA BELOW FINAL FORM;Lo;0;AL;<final> 0644 0625;;;;N;GLYPH FOR FINAL ARABIC HAMZAH UNDER LIGATURE LAM ALEF;;;;
+FEFB;ARABIC LIGATURE LAM WITH ALEF ISOLATED FORM;Lo;0;AL;<isolated> 0644 0627;;;;N;GLYPH FOR ISOLATE ARABIC LIGATURE LAM ALEF;;;;
+FEFC;ARABIC LIGATURE LAM WITH ALEF FINAL FORM;Lo;0;AL;<final> 0644 0627;;;;N;GLYPH FOR FINAL ARABIC LIGATURE LAM ALEF;;;;
+FEFF;ZERO WIDTH NO-BREAK SPACE;Cf;0;BN;;;;;N;BYTE ORDER MARK;;;;
+FF01;FULLWIDTH EXCLAMATION MARK;Po;0;ON;<wide> 0021;;;;N;;;;;
+FF02;FULLWIDTH QUOTATION MARK;Po;0;ON;<wide> 0022;;;;N;;;;;
+FF03;FULLWIDTH NUMBER SIGN;Po;0;ET;<wide> 0023;;;;N;;;;;
+FF04;FULLWIDTH DOLLAR SIGN;Sc;0;ET;<wide> 0024;;;;N;;;;;
+FF05;FULLWIDTH PERCENT SIGN;Po;0;ET;<wide> 0025;;;;N;;;;;
+FF06;FULLWIDTH AMPERSAND;Po;0;ON;<wide> 0026;;;;N;;;;;
+FF07;FULLWIDTH APOSTROPHE;Po;0;ON;<wide> 0027;;;;N;;;;;
+FF08;FULLWIDTH LEFT PARENTHESIS;Ps;0;ON;<wide> 0028;;;;Y;FULLWIDTH OPENING PARENTHESIS;;;;
+FF09;FULLWIDTH RIGHT PARENTHESIS;Pe;0;ON;<wide> 0029;;;;Y;FULLWIDTH CLOSING PARENTHESIS;;;;
+FF0A;FULLWIDTH ASTERISK;Po;0;ON;<wide> 002A;;;;N;;;;;
+FF0B;FULLWIDTH PLUS SIGN;Sm;0;ES;<wide> 002B;;;;N;;;;;
+FF0C;FULLWIDTH COMMA;Po;0;CS;<wide> 002C;;;;N;;;;;
+FF0D;FULLWIDTH HYPHEN-MINUS;Pd;0;ES;<wide> 002D;;;;N;;;;;
+FF0E;FULLWIDTH FULL STOP;Po;0;CS;<wide> 002E;;;;N;FULLWIDTH PERIOD;;;;
+FF0F;FULLWIDTH SOLIDUS;Po;0;CS;<wide> 002F;;;;N;FULLWIDTH SLASH;;;;
+FF10;FULLWIDTH DIGIT ZERO;Nd;0;EN;<wide> 0030;0;0;0;N;;;;;
+FF11;FULLWIDTH DIGIT ONE;Nd;0;EN;<wide> 0031;1;1;1;N;;;;;
+FF12;FULLWIDTH DIGIT TWO;Nd;0;EN;<wide> 0032;2;2;2;N;;;;;
+FF13;FULLWIDTH DIGIT THREE;Nd;0;EN;<wide> 0033;3;3;3;N;;;;;
+FF14;FULLWIDTH DIGIT FOUR;Nd;0;EN;<wide> 0034;4;4;4;N;;;;;
+FF15;FULLWIDTH DIGIT FIVE;Nd;0;EN;<wide> 0035;5;5;5;N;;;;;
+FF16;FULLWIDTH DIGIT SIX;Nd;0;EN;<wide> 0036;6;6;6;N;;;;;
+FF17;FULLWIDTH DIGIT SEVEN;Nd;0;EN;<wide> 0037;7;7;7;N;;;;;
+FF18;FULLWIDTH DIGIT EIGHT;Nd;0;EN;<wide> 0038;8;8;8;N;;;;;
+FF19;FULLWIDTH DIGIT NINE;Nd;0;EN;<wide> 0039;9;9;9;N;;;;;
+FF1A;FULLWIDTH COLON;Po;0;CS;<wide> 003A;;;;N;;;;;
+FF1B;FULLWIDTH SEMICOLON;Po;0;ON;<wide> 003B;;;;N;;;;;
+FF1C;FULLWIDTH LESS-THAN SIGN;Sm;0;ON;<wide> 003C;;;;Y;;;;;
+FF1D;FULLWIDTH EQUALS SIGN;Sm;0;ON;<wide> 003D;;;;N;;;;;
+FF1E;FULLWIDTH GREATER-THAN SIGN;Sm;0;ON;<wide> 003E;;;;Y;;;;;
+FF1F;FULLWIDTH QUESTION MARK;Po;0;ON;<wide> 003F;;;;N;;;;;
+FF20;FULLWIDTH COMMERCIAL AT;Po;0;ON;<wide> 0040;;;;N;;;;;
+FF21;FULLWIDTH LATIN CAPITAL LETTER A;Lu;0;L;<wide> 0041;;;;N;;;;FF41;
+FF22;FULLWIDTH LATIN CAPITAL LETTER B;Lu;0;L;<wide> 0042;;;;N;;;;FF42;
+FF23;FULLWIDTH LATIN CAPITAL LETTER C;Lu;0;L;<wide> 0043;;;;N;;;;FF43;
+FF24;FULLWIDTH LATIN CAPITAL LETTER D;Lu;0;L;<wide> 0044;;;;N;;;;FF44;
+FF25;FULLWIDTH LATIN CAPITAL LETTER E;Lu;0;L;<wide> 0045;;;;N;;;;FF45;
+FF26;FULLWIDTH LATIN CAPITAL LETTER F;Lu;0;L;<wide> 0046;;;;N;;;;FF46;
+FF27;FULLWIDTH LATIN CAPITAL LETTER G;Lu;0;L;<wide> 0047;;;;N;;;;FF47;
+FF28;FULLWIDTH LATIN CAPITAL LETTER H;Lu;0;L;<wide> 0048;;;;N;;;;FF48;
+FF29;FULLWIDTH LATIN CAPITAL LETTER I;Lu;0;L;<wide> 0049;;;;N;;;;FF49;
+FF2A;FULLWIDTH LATIN CAPITAL LETTER J;Lu;0;L;<wide> 004A;;;;N;;;;FF4A;
+FF2B;FULLWIDTH LATIN CAPITAL LETTER K;Lu;0;L;<wide> 004B;;;;N;;;;FF4B;
+FF2C;FULLWIDTH LATIN CAPITAL LETTER L;Lu;0;L;<wide> 004C;;;;N;;;;FF4C;
+FF2D;FULLWIDTH LATIN CAPITAL LETTER M;Lu;0;L;<wide> 004D;;;;N;;;;FF4D;
+FF2E;FULLWIDTH LATIN CAPITAL LETTER N;Lu;0;L;<wide> 004E;;;;N;;;;FF4E;
+FF2F;FULLWIDTH LATIN CAPITAL LETTER O;Lu;0;L;<wide> 004F;;;;N;;;;FF4F;
+FF30;FULLWIDTH LATIN CAPITAL LETTER P;Lu;0;L;<wide> 0050;;;;N;;;;FF50;
+FF31;FULLWIDTH LATIN CAPITAL LETTER Q;Lu;0;L;<wide> 0051;;;;N;;;;FF51;
+FF32;FULLWIDTH LATIN CAPITAL LETTER R;Lu;0;L;<wide> 0052;;;;N;;;;FF52;
+FF33;FULLWIDTH LATIN CAPITAL LETTER S;Lu;0;L;<wide> 0053;;;;N;;;;FF53;
+FF34;FULLWIDTH LATIN CAPITAL LETTER T;Lu;0;L;<wide> 0054;;;;N;;;;FF54;
+FF35;FULLWIDTH LATIN CAPITAL LETTER U;Lu;0;L;<wide> 0055;;;;N;;;;FF55;
+FF36;FULLWIDTH LATIN CAPITAL LETTER V;Lu;0;L;<wide> 0056;;;;N;;;;FF56;
+FF37;FULLWIDTH LATIN CAPITAL LETTER W;Lu;0;L;<wide> 0057;;;;N;;;;FF57;
+FF38;FULLWIDTH LATIN CAPITAL LETTER X;Lu;0;L;<wide> 0058;;;;N;;;;FF58;
+FF39;FULLWIDTH LATIN CAPITAL LETTER Y;Lu;0;L;<wide> 0059;;;;N;;;;FF59;
+FF3A;FULLWIDTH LATIN CAPITAL LETTER Z;Lu;0;L;<wide> 005A;;;;N;;;;FF5A;
+FF3B;FULLWIDTH LEFT SQUARE BRACKET;Ps;0;ON;<wide> 005B;;;;Y;FULLWIDTH OPENING SQUARE BRACKET;;;;
+FF3C;FULLWIDTH REVERSE SOLIDUS;Po;0;ON;<wide> 005C;;;;N;FULLWIDTH BACKSLASH;;;;
+FF3D;FULLWIDTH RIGHT SQUARE BRACKET;Pe;0;ON;<wide> 005D;;;;Y;FULLWIDTH CLOSING SQUARE BRACKET;;;;
+FF3E;FULLWIDTH CIRCUMFLEX ACCENT;Sk;0;ON;<wide> 005E;;;;N;FULLWIDTH SPACING CIRCUMFLEX;;;;
+FF3F;FULLWIDTH LOW LINE;Pc;0;ON;<wide> 005F;;;;N;FULLWIDTH SPACING UNDERSCORE;;;;
+FF40;FULLWIDTH GRAVE ACCENT;Sk;0;ON;<wide> 0060;;;;N;FULLWIDTH SPACING GRAVE;;;;
+FF41;FULLWIDTH LATIN SMALL LETTER A;Ll;0;L;<wide> 0061;;;;N;;;FF21;;FF21
+FF42;FULLWIDTH LATIN SMALL LETTER B;Ll;0;L;<wide> 0062;;;;N;;;FF22;;FF22
+FF43;FULLWIDTH LATIN SMALL LETTER C;Ll;0;L;<wide> 0063;;;;N;;;FF23;;FF23
+FF44;FULLWIDTH LATIN SMALL LETTER D;Ll;0;L;<wide> 0064;;;;N;;;FF24;;FF24
+FF45;FULLWIDTH LATIN SMALL LETTER E;Ll;0;L;<wide> 0065;;;;N;;;FF25;;FF25
+FF46;FULLWIDTH LATIN SMALL LETTER F;Ll;0;L;<wide> 0066;;;;N;;;FF26;;FF26
+FF47;FULLWIDTH LATIN SMALL LETTER G;Ll;0;L;<wide> 0067;;;;N;;;FF27;;FF27
+FF48;FULLWIDTH LATIN SMALL LETTER H;Ll;0;L;<wide> 0068;;;;N;;;FF28;;FF28
+FF49;FULLWIDTH LATIN SMALL LETTER I;Ll;0;L;<wide> 0069;;;;N;;;FF29;;FF29
+FF4A;FULLWIDTH LATIN SMALL LETTER J;Ll;0;L;<wide> 006A;;;;N;;;FF2A;;FF2A
+FF4B;FULLWIDTH LATIN SMALL LETTER K;Ll;0;L;<wide> 006B;;;;N;;;FF2B;;FF2B
+FF4C;FULLWIDTH LATIN SMALL LETTER L;Ll;0;L;<wide> 006C;;;;N;;;FF2C;;FF2C
+FF4D;FULLWIDTH LATIN SMALL LETTER M;Ll;0;L;<wide> 006D;;;;N;;;FF2D;;FF2D
+FF4E;FULLWIDTH LATIN SMALL LETTER N;Ll;0;L;<wide> 006E;;;;N;;;FF2E;;FF2E
+FF4F;FULLWIDTH LATIN SMALL LETTER O;Ll;0;L;<wide> 006F;;;;N;;;FF2F;;FF2F
+FF50;FULLWIDTH LATIN SMALL LETTER P;Ll;0;L;<wide> 0070;;;;N;;;FF30;;FF30
+FF51;FULLWIDTH LATIN SMALL LETTER Q;Ll;0;L;<wide> 0071;;;;N;;;FF31;;FF31
+FF52;FULLWIDTH LATIN SMALL LETTER R;Ll;0;L;<wide> 0072;;;;N;;;FF32;;FF32
+FF53;FULLWIDTH LATIN SMALL LETTER S;Ll;0;L;<wide> 0073;;;;N;;;FF33;;FF33
+FF54;FULLWIDTH LATIN SMALL LETTER T;Ll;0;L;<wide> 0074;;;;N;;;FF34;;FF34
+FF55;FULLWIDTH LATIN SMALL LETTER U;Ll;0;L;<wide> 0075;;;;N;;;FF35;;FF35
+FF56;FULLWIDTH LATIN SMALL LETTER V;Ll;0;L;<wide> 0076;;;;N;;;FF36;;FF36
+FF57;FULLWIDTH LATIN SMALL LETTER W;Ll;0;L;<wide> 0077;;;;N;;;FF37;;FF37
+FF58;FULLWIDTH LATIN SMALL LETTER X;Ll;0;L;<wide> 0078;;;;N;;;FF38;;FF38
+FF59;FULLWIDTH LATIN SMALL LETTER Y;Ll;0;L;<wide> 0079;;;;N;;;FF39;;FF39
+FF5A;FULLWIDTH LATIN SMALL LETTER Z;Ll;0;L;<wide> 007A;;;;N;;;FF3A;;FF3A
+FF5B;FULLWIDTH LEFT CURLY BRACKET;Ps;0;ON;<wide> 007B;;;;Y;FULLWIDTH OPENING CURLY BRACKET;;;;
+FF5C;FULLWIDTH VERTICAL LINE;Sm;0;ON;<wide> 007C;;;;N;FULLWIDTH VERTICAL BAR;;;;
+FF5D;FULLWIDTH RIGHT CURLY BRACKET;Pe;0;ON;<wide> 007D;;;;Y;FULLWIDTH CLOSING CURLY BRACKET;;;;
+FF5E;FULLWIDTH TILDE;Sm;0;ON;<wide> 007E;;;;N;FULLWIDTH SPACING TILDE;;;;
+FF5F;FULLWIDTH LEFT WHITE PARENTHESIS;Ps;0;ON;<wide> 2985;;;;Y;;;;;
+FF60;FULLWIDTH RIGHT WHITE PARENTHESIS;Pe;0;ON;<wide> 2986;;;;Y;;;;;
+FF61;HALFWIDTH IDEOGRAPHIC FULL STOP;Po;0;ON;<narrow> 3002;;;;N;HALFWIDTH IDEOGRAPHIC PERIOD;;;;
+FF62;HALFWIDTH LEFT CORNER BRACKET;Ps;0;ON;<narrow> 300C;;;;Y;HALFWIDTH OPENING CORNER BRACKET;;;;
+FF63;HALFWIDTH RIGHT CORNER BRACKET;Pe;0;ON;<narrow> 300D;;;;Y;HALFWIDTH CLOSING CORNER BRACKET;;;;
+FF64;HALFWIDTH IDEOGRAPHIC COMMA;Po;0;ON;<narrow> 3001;;;;N;;;;;
+FF65;HALFWIDTH KATAKANA MIDDLE DOT;Po;0;ON;<narrow> 30FB;;;;N;;;;;
+FF66;HALFWIDTH KATAKANA LETTER WO;Lo;0;L;<narrow> 30F2;;;;N;;;;;
+FF67;HALFWIDTH KATAKANA LETTER SMALL A;Lo;0;L;<narrow> 30A1;;;;N;;;;;
+FF68;HALFWIDTH KATAKANA LETTER SMALL I;Lo;0;L;<narrow> 30A3;;;;N;;;;;
+FF69;HALFWIDTH KATAKANA LETTER SMALL U;Lo;0;L;<narrow> 30A5;;;;N;;;;;
+FF6A;HALFWIDTH KATAKANA LETTER SMALL E;Lo;0;L;<narrow> 30A7;;;;N;;;;;
+FF6B;HALFWIDTH KATAKANA LETTER SMALL O;Lo;0;L;<narrow> 30A9;;;;N;;;;;
+FF6C;HALFWIDTH KATAKANA LETTER SMALL YA;Lo;0;L;<narrow> 30E3;;;;N;;;;;
+FF6D;HALFWIDTH KATAKANA LETTER SMALL YU;Lo;0;L;<narrow> 30E5;;;;N;;;;;
+FF6E;HALFWIDTH KATAKANA LETTER SMALL YO;Lo;0;L;<narrow> 30E7;;;;N;;;;;
+FF6F;HALFWIDTH KATAKANA LETTER SMALL TU;Lo;0;L;<narrow> 30C3;;;;N;;;;;
+FF70;HALFWIDTH KATAKANA-HIRAGANA PROLONGED SOUND MARK;Lm;0;L;<narrow> 30FC;;;;N;;;;;
+FF71;HALFWIDTH KATAKANA LETTER A;Lo;0;L;<narrow> 30A2;;;;N;;;;;
+FF72;HALFWIDTH KATAKANA LETTER I;Lo;0;L;<narrow> 30A4;;;;N;;;;;
+FF73;HALFWIDTH KATAKANA LETTER U;Lo;0;L;<narrow> 30A6;;;;N;;;;;
+FF74;HALFWIDTH KATAKANA LETTER E;Lo;0;L;<narrow> 30A8;;;;N;;;;;
+FF75;HALFWIDTH KATAKANA LETTER O;Lo;0;L;<narrow> 30AA;;;;N;;;;;
+FF76;HALFWIDTH KATAKANA LETTER KA;Lo;0;L;<narrow> 30AB;;;;N;;;;;
+FF77;HALFWIDTH KATAKANA LETTER KI;Lo;0;L;<narrow> 30AD;;;;N;;;;;
+FF78;HALFWIDTH KATAKANA LETTER KU;Lo;0;L;<narrow> 30AF;;;;N;;;;;
+FF79;HALFWIDTH KATAKANA LETTER KE;Lo;0;L;<narrow> 30B1;;;;N;;;;;
+FF7A;HALFWIDTH KATAKANA LETTER KO;Lo;0;L;<narrow> 30B3;;;;N;;;;;
+FF7B;HALFWIDTH KATAKANA LETTER SA;Lo;0;L;<narrow> 30B5;;;;N;;;;;
+FF7C;HALFWIDTH KATAKANA LETTER SI;Lo;0;L;<narrow> 30B7;;;;N;;;;;
+FF7D;HALFWIDTH KATAKANA LETTER SU;Lo;0;L;<narrow> 30B9;;;;N;;;;;
+FF7E;HALFWIDTH KATAKANA LETTER SE;Lo;0;L;<narrow> 30BB;;;;N;;;;;
+FF7F;HALFWIDTH KATAKANA LETTER SO;Lo;0;L;<narrow> 30BD;;;;N;;;;;
+FF80;HALFWIDTH KATAKANA LETTER TA;Lo;0;L;<narrow> 30BF;;;;N;;;;;
+FF81;HALFWIDTH KATAKANA LETTER TI;Lo;0;L;<narrow> 30C1;;;;N;;;;;
+FF82;HALFWIDTH KATAKANA LETTER TU;Lo;0;L;<narrow> 30C4;;;;N;;;;;
+FF83;HALFWIDTH KATAKANA LETTER TE;Lo;0;L;<narrow> 30C6;;;;N;;;;;
+FF84;HALFWIDTH KATAKANA LETTER TO;Lo;0;L;<narrow> 30C8;;;;N;;;;;
+FF85;HALFWIDTH KATAKANA LETTER NA;Lo;0;L;<narrow> 30CA;;;;N;;;;;
+FF86;HALFWIDTH KATAKANA LETTER NI;Lo;0;L;<narrow> 30CB;;;;N;;;;;
+FF87;HALFWIDTH KATAKANA LETTER NU;Lo;0;L;<narrow> 30CC;;;;N;;;;;
+FF88;HALFWIDTH KATAKANA LETTER NE;Lo;0;L;<narrow> 30CD;;;;N;;;;;
+FF89;HALFWIDTH KATAKANA LETTER NO;Lo;0;L;<narrow> 30CE;;;;N;;;;;
+FF8A;HALFWIDTH KATAKANA LETTER HA;Lo;0;L;<narrow> 30CF;;;;N;;;;;
+FF8B;HALFWIDTH KATAKANA LETTER HI;Lo;0;L;<narrow> 30D2;;;;N;;;;;
+FF8C;HALFWIDTH KATAKANA LETTER HU;Lo;0;L;<narrow> 30D5;;;;N;;;;;
+FF8D;HALFWIDTH KATAKANA LETTER HE;Lo;0;L;<narrow> 30D8;;;;N;;;;;
+FF8E;HALFWIDTH KATAKANA LETTER HO;Lo;0;L;<narrow> 30DB;;;;N;;;;;
+FF8F;HALFWIDTH KATAKANA LETTER MA;Lo;0;L;<narrow> 30DE;;;;N;;;;;
+FF90;HALFWIDTH KATAKANA LETTER MI;Lo;0;L;<narrow> 30DF;;;;N;;;;;
+FF91;HALFWIDTH KATAKANA LETTER MU;Lo;0;L;<narrow> 30E0;;;;N;;;;;
+FF92;HALFWIDTH KATAKANA LETTER ME;Lo;0;L;<narrow> 30E1;;;;N;;;;;
+FF93;HALFWIDTH KATAKANA LETTER MO;Lo;0;L;<narrow> 30E2;;;;N;;;;;
+FF94;HALFWIDTH KATAKANA LETTER YA;Lo;0;L;<narrow> 30E4;;;;N;;;;;
+FF95;HALFWIDTH KATAKANA LETTER YU;Lo;0;L;<narrow> 30E6;;;;N;;;;;
+FF96;HALFWIDTH KATAKANA LETTER YO;Lo;0;L;<narrow> 30E8;;;;N;;;;;
+FF97;HALFWIDTH KATAKANA LETTER RA;Lo;0;L;<narrow> 30E9;;;;N;;;;;
+FF98;HALFWIDTH KATAKANA LETTER RI;Lo;0;L;<narrow> 30EA;;;;N;;;;;
+FF99;HALFWIDTH KATAKANA LETTER RU;Lo;0;L;<narrow> 30EB;;;;N;;;;;
+FF9A;HALFWIDTH KATAKANA LETTER RE;Lo;0;L;<narrow> 30EC;;;;N;;;;;
+FF9B;HALFWIDTH KATAKANA LETTER RO;Lo;0;L;<narrow> 30ED;;;;N;;;;;
+FF9C;HALFWIDTH KATAKANA LETTER WA;Lo;0;L;<narrow> 30EF;;;;N;;;;;
+FF9D;HALFWIDTH KATAKANA LETTER N;Lo;0;L;<narrow> 30F3;;;;N;;;;;
+FF9E;HALFWIDTH KATAKANA VOICED SOUND MARK;Lm;0;L;<narrow> 3099;;;;N;;;;;
+FF9F;HALFWIDTH KATAKANA SEMI-VOICED SOUND MARK;Lm;0;L;<narrow> 309A;;;;N;;;;;
+FFA0;HALFWIDTH HANGUL FILLER;Lo;0;L;<narrow> 3164;;;;N;HALFWIDTH HANGUL CAE OM;;;;
+FFA1;HALFWIDTH HANGUL LETTER KIYEOK;Lo;0;L;<narrow> 3131;;;;N;HALFWIDTH HANGUL LETTER GIYEOG;;;;
+FFA2;HALFWIDTH HANGUL LETTER SSANGKIYEOK;Lo;0;L;<narrow> 3132;;;;N;HALFWIDTH HANGUL LETTER SSANG GIYEOG;;;;
+FFA3;HALFWIDTH HANGUL LETTER KIYEOK-SIOS;Lo;0;L;<narrow> 3133;;;;N;HALFWIDTH HANGUL LETTER GIYEOG SIOS;;;;
+FFA4;HALFWIDTH HANGUL LETTER NIEUN;Lo;0;L;<narrow> 3134;;;;N;;;;;
+FFA5;HALFWIDTH HANGUL LETTER NIEUN-CIEUC;Lo;0;L;<narrow> 3135;;;;N;HALFWIDTH HANGUL LETTER NIEUN JIEUJ;;;;
+FFA6;HALFWIDTH HANGUL LETTER NIEUN-HIEUH;Lo;0;L;<narrow> 3136;;;;N;HALFWIDTH HANGUL LETTER NIEUN HIEUH;;;;
+FFA7;HALFWIDTH HANGUL LETTER TIKEUT;Lo;0;L;<narrow> 3137;;;;N;HALFWIDTH HANGUL LETTER DIGEUD;;;;
+FFA8;HALFWIDTH HANGUL LETTER SSANGTIKEUT;Lo;0;L;<narrow> 3138;;;;N;HALFWIDTH HANGUL LETTER SSANG DIGEUD;;;;
+FFA9;HALFWIDTH HANGUL LETTER RIEUL;Lo;0;L;<narrow> 3139;;;;N;HALFWIDTH HANGUL LETTER LIEUL;;;;
+FFAA;HALFWIDTH HANGUL LETTER RIEUL-KIYEOK;Lo;0;L;<narrow> 313A;;;;N;HALFWIDTH HANGUL LETTER LIEUL GIYEOG;;;;
+FFAB;HALFWIDTH HANGUL LETTER RIEUL-MIEUM;Lo;0;L;<narrow> 313B;;;;N;HALFWIDTH HANGUL LETTER LIEUL MIEUM;;;;
+FFAC;HALFWIDTH HANGUL LETTER RIEUL-PIEUP;Lo;0;L;<narrow> 313C;;;;N;HALFWIDTH HANGUL LETTER LIEUL BIEUB;;;;
+FFAD;HALFWIDTH HANGUL LETTER RIEUL-SIOS;Lo;0;L;<narrow> 313D;;;;N;HALFWIDTH HANGUL LETTER LIEUL SIOS;;;;
+FFAE;HALFWIDTH HANGUL LETTER RIEUL-THIEUTH;Lo;0;L;<narrow> 313E;;;;N;HALFWIDTH HANGUL LETTER LIEUL TIEUT;;;;
+FFAF;HALFWIDTH HANGUL LETTER RIEUL-PHIEUPH;Lo;0;L;<narrow> 313F;;;;N;HALFWIDTH HANGUL LETTER LIEUL PIEUP;;;;
+FFB0;HALFWIDTH HANGUL LETTER RIEUL-HIEUH;Lo;0;L;<narrow> 3140;;;;N;HALFWIDTH HANGUL LETTER LIEUL HIEUH;;;;
+FFB1;HALFWIDTH HANGUL LETTER MIEUM;Lo;0;L;<narrow> 3141;;;;N;;;;;
+FFB2;HALFWIDTH HANGUL LETTER PIEUP;Lo;0;L;<narrow> 3142;;;;N;HALFWIDTH HANGUL LETTER BIEUB;;;;
+FFB3;HALFWIDTH HANGUL LETTER SSANGPIEUP;Lo;0;L;<narrow> 3143;;;;N;HALFWIDTH HANGUL LETTER SSANG BIEUB;;;;
+FFB4;HALFWIDTH HANGUL LETTER PIEUP-SIOS;Lo;0;L;<narrow> 3144;;;;N;HALFWIDTH HANGUL LETTER BIEUB SIOS;;;;
+FFB5;HALFWIDTH HANGUL LETTER SIOS;Lo;0;L;<narrow> 3145;;;;N;;;;;
+FFB6;HALFWIDTH HANGUL LETTER SSANGSIOS;Lo;0;L;<narrow> 3146;;;;N;HALFWIDTH HANGUL LETTER SSANG SIOS;;;;
+FFB7;HALFWIDTH HANGUL LETTER IEUNG;Lo;0;L;<narrow> 3147;;;;N;;;;;
+FFB8;HALFWIDTH HANGUL LETTER CIEUC;Lo;0;L;<narrow> 3148;;;;N;HALFWIDTH HANGUL LETTER JIEUJ;;;;
+FFB9;HALFWIDTH HANGUL LETTER SSANGCIEUC;Lo;0;L;<narrow> 3149;;;;N;HALFWIDTH HANGUL LETTER SSANG JIEUJ;;;;
+FFBA;HALFWIDTH HANGUL LETTER CHIEUCH;Lo;0;L;<narrow> 314A;;;;N;HALFWIDTH HANGUL LETTER CIEUC;;;;
+FFBB;HALFWIDTH HANGUL LETTER KHIEUKH;Lo;0;L;<narrow> 314B;;;;N;HALFWIDTH HANGUL LETTER KIYEOK;;;;
+FFBC;HALFWIDTH HANGUL LETTER THIEUTH;Lo;0;L;<narrow> 314C;;;;N;HALFWIDTH HANGUL LETTER TIEUT;;;;
+FFBD;HALFWIDTH HANGUL LETTER PHIEUPH;Lo;0;L;<narrow> 314D;;;;N;HALFWIDTH HANGUL LETTER PIEUP;;;;
+FFBE;HALFWIDTH HANGUL LETTER HIEUH;Lo;0;L;<narrow> 314E;;;;N;;;;;
+FFC2;HALFWIDTH HANGUL LETTER A;Lo;0;L;<narrow> 314F;;;;N;;;;;
+FFC3;HALFWIDTH HANGUL LETTER AE;Lo;0;L;<narrow> 3150;;;;N;;;;;
+FFC4;HALFWIDTH HANGUL LETTER YA;Lo;0;L;<narrow> 3151;;;;N;;;;;
+FFC5;HALFWIDTH HANGUL LETTER YAE;Lo;0;L;<narrow> 3152;;;;N;;;;;
+FFC6;HALFWIDTH HANGUL LETTER EO;Lo;0;L;<narrow> 3153;;;;N;;;;;
+FFC7;HALFWIDTH HANGUL LETTER E;Lo;0;L;<narrow> 3154;;;;N;;;;;
+FFCA;HALFWIDTH HANGUL LETTER YEO;Lo;0;L;<narrow> 3155;;;;N;;;;;
+FFCB;HALFWIDTH HANGUL LETTER YE;Lo;0;L;<narrow> 3156;;;;N;;;;;
+FFCC;HALFWIDTH HANGUL LETTER O;Lo;0;L;<narrow> 3157;;;;N;;;;;
+FFCD;HALFWIDTH HANGUL LETTER WA;Lo;0;L;<narrow> 3158;;;;N;;;;;
+FFCE;HALFWIDTH HANGUL LETTER WAE;Lo;0;L;<narrow> 3159;;;;N;;;;;
+FFCF;HALFWIDTH HANGUL LETTER OE;Lo;0;L;<narrow> 315A;;;;N;;;;;
+FFD2;HALFWIDTH HANGUL LETTER YO;Lo;0;L;<narrow> 315B;;;;N;;;;;
+FFD3;HALFWIDTH HANGUL LETTER U;Lo;0;L;<narrow> 315C;;;;N;;;;;
+FFD4;HALFWIDTH HANGUL LETTER WEO;Lo;0;L;<narrow> 315D;;;;N;;;;;
+FFD5;HALFWIDTH HANGUL LETTER WE;Lo;0;L;<narrow> 315E;;;;N;;;;;
+FFD6;HALFWIDTH HANGUL LETTER WI;Lo;0;L;<narrow> 315F;;;;N;;;;;
+FFD7;HALFWIDTH HANGUL LETTER YU;Lo;0;L;<narrow> 3160;;;;N;;;;;
+FFDA;HALFWIDTH HANGUL LETTER EU;Lo;0;L;<narrow> 3161;;;;N;;;;;
+FFDB;HALFWIDTH HANGUL LETTER YI;Lo;0;L;<narrow> 3162;;;;N;;;;;
+FFDC;HALFWIDTH HANGUL LETTER I;Lo;0;L;<narrow> 3163;;;;N;;;;;
+FFE0;FULLWIDTH CENT SIGN;Sc;0;ET;<wide> 00A2;;;;N;;;;;
+FFE1;FULLWIDTH POUND SIGN;Sc;0;ET;<wide> 00A3;;;;N;;;;;
+FFE2;FULLWIDTH NOT SIGN;Sm;0;ON;<wide> 00AC;;;;N;;;;;
+FFE3;FULLWIDTH MACRON;Sk;0;ON;<wide> 00AF;;;;N;FULLWIDTH SPACING MACRON;;;;
+FFE4;FULLWIDTH BROKEN BAR;So;0;ON;<wide> 00A6;;;;N;FULLWIDTH BROKEN VERTICAL BAR;;;;
+FFE5;FULLWIDTH YEN SIGN;Sc;0;ET;<wide> 00A5;;;;N;;;;;
+FFE6;FULLWIDTH WON SIGN;Sc;0;ET;<wide> 20A9;;;;N;;;;;
+FFE8;HALFWIDTH FORMS LIGHT VERTICAL;So;0;ON;<narrow> 2502;;;;N;;;;;
+FFE9;HALFWIDTH LEFTWARDS ARROW;Sm;0;ON;<narrow> 2190;;;;N;;;;;
+FFEA;HALFWIDTH UPWARDS ARROW;Sm;0;ON;<narrow> 2191;;;;N;;;;;
+FFEB;HALFWIDTH RIGHTWARDS ARROW;Sm;0;ON;<narrow> 2192;;;;N;;;;;
+FFEC;HALFWIDTH DOWNWARDS ARROW;Sm;0;ON;<narrow> 2193;;;;N;;;;;
+FFED;HALFWIDTH BLACK SQUARE;So;0;ON;<narrow> 25A0;;;;N;;;;;
+FFEE;HALFWIDTH WHITE CIRCLE;So;0;ON;<narrow> 25CB;;;;N;;;;;
+FFF9;INTERLINEAR ANNOTATION ANCHOR;Cf;0;ON;;;;;N;;;;;
+FFFA;INTERLINEAR ANNOTATION SEPARATOR;Cf;0;ON;;;;;N;;;;;
+FFFB;INTERLINEAR ANNOTATION TERMINATOR;Cf;0;ON;;;;;N;;;;;
+FFFC;OBJECT REPLACEMENT CHARACTER;So;0;ON;;;;;N;;;;;
+FFFD;REPLACEMENT CHARACTER;So;0;ON;;;;;N;;;;;
+10000;LINEAR B SYLLABLE B008 A;Lo;0;L;;;;;N;;;;;
+10001;LINEAR B SYLLABLE B038 E;Lo;0;L;;;;;N;;;;;
+10002;LINEAR B SYLLABLE B028 I;Lo;0;L;;;;;N;;;;;
+10003;LINEAR B SYLLABLE B061 O;Lo;0;L;;;;;N;;;;;
+10004;LINEAR B SYLLABLE B010 U;Lo;0;L;;;;;N;;;;;
+10005;LINEAR B SYLLABLE B001 DA;Lo;0;L;;;;;N;;;;;
+10006;LINEAR B SYLLABLE B045 DE;Lo;0;L;;;;;N;;;;;
+10007;LINEAR B SYLLABLE B007 DI;Lo;0;L;;;;;N;;;;;
+10008;LINEAR B SYLLABLE B014 DO;Lo;0;L;;;;;N;;;;;
+10009;LINEAR B SYLLABLE B051 DU;Lo;0;L;;;;;N;;;;;
+1000A;LINEAR B SYLLABLE B057 JA;Lo;0;L;;;;;N;;;;;
+1000B;LINEAR B SYLLABLE B046 JE;Lo;0;L;;;;;N;;;;;
+1000D;LINEAR B SYLLABLE B036 JO;Lo;0;L;;;;;N;;;;;
+1000E;LINEAR B SYLLABLE B065 JU;Lo;0;L;;;;;N;;;;;
+1000F;LINEAR B SYLLABLE B077 KA;Lo;0;L;;;;;N;;;;;
+10010;LINEAR B SYLLABLE B044 KE;Lo;0;L;;;;;N;;;;;
+10011;LINEAR B SYLLABLE B067 KI;Lo;0;L;;;;;N;;;;;
+10012;LINEAR B SYLLABLE B070 KO;Lo;0;L;;;;;N;;;;;
+10013;LINEAR B SYLLABLE B081 KU;Lo;0;L;;;;;N;;;;;
+10014;LINEAR B SYLLABLE B080 MA;Lo;0;L;;;;;N;;;;;
+10015;LINEAR B SYLLABLE B013 ME;Lo;0;L;;;;;N;;;;;
+10016;LINEAR B SYLLABLE B073 MI;Lo;0;L;;;;;N;;;;;
+10017;LINEAR B SYLLABLE B015 MO;Lo;0;L;;;;;N;;;;;
+10018;LINEAR B SYLLABLE B023 MU;Lo;0;L;;;;;N;;;;;
+10019;LINEAR B SYLLABLE B006 NA;Lo;0;L;;;;;N;;;;;
+1001A;LINEAR B SYLLABLE B024 NE;Lo;0;L;;;;;N;;;;;
+1001B;LINEAR B SYLLABLE B030 NI;Lo;0;L;;;;;N;;;;;
+1001C;LINEAR B SYLLABLE B052 NO;Lo;0;L;;;;;N;;;;;
+1001D;LINEAR B SYLLABLE B055 NU;Lo;0;L;;;;;N;;;;;
+1001E;LINEAR B SYLLABLE B003 PA;Lo;0;L;;;;;N;;;;;
+1001F;LINEAR B SYLLABLE B072 PE;Lo;0;L;;;;;N;;;;;
+10020;LINEAR B SYLLABLE B039 PI;Lo;0;L;;;;;N;;;;;
+10021;LINEAR B SYLLABLE B011 PO;Lo;0;L;;;;;N;;;;;
+10022;LINEAR B SYLLABLE B050 PU;Lo;0;L;;;;;N;;;;;
+10023;LINEAR B SYLLABLE B016 QA;Lo;0;L;;;;;N;;;;;
+10024;LINEAR B SYLLABLE B078 QE;Lo;0;L;;;;;N;;;;;
+10025;LINEAR B SYLLABLE B021 QI;Lo;0;L;;;;;N;;;;;
+10026;LINEAR B SYLLABLE B032 QO;Lo;0;L;;;;;N;;;;;
+10028;LINEAR B SYLLABLE B060 RA;Lo;0;L;;;;;N;;;;;
+10029;LINEAR B SYLLABLE B027 RE;Lo;0;L;;;;;N;;;;;
+1002A;LINEAR B SYLLABLE B053 RI;Lo;0;L;;;;;N;;;;;
+1002B;LINEAR B SYLLABLE B002 RO;Lo;0;L;;;;;N;;;;;
+1002C;LINEAR B SYLLABLE B026 RU;Lo;0;L;;;;;N;;;;;
+1002D;LINEAR B SYLLABLE B031 SA;Lo;0;L;;;;;N;;;;;
+1002E;LINEAR B SYLLABLE B009 SE;Lo;0;L;;;;;N;;;;;
+1002F;LINEAR B SYLLABLE B041 SI;Lo;0;L;;;;;N;;;;;
+10030;LINEAR B SYLLABLE B012 SO;Lo;0;L;;;;;N;;;;;
+10031;LINEAR B SYLLABLE B058 SU;Lo;0;L;;;;;N;;;;;
+10032;LINEAR B SYLLABLE B059 TA;Lo;0;L;;;;;N;;;;;
+10033;LINEAR B SYLLABLE B004 TE;Lo;0;L;;;;;N;;;;;
+10034;LINEAR B SYLLABLE B037 TI;Lo;0;L;;;;;N;;;;;
+10035;LINEAR B SYLLABLE B005 TO;Lo;0;L;;;;;N;;;;;
+10036;LINEAR B SYLLABLE B069 TU;Lo;0;L;;;;;N;;;;;
+10037;LINEAR B SYLLABLE B054 WA;Lo;0;L;;;;;N;;;;;
+10038;LINEAR B SYLLABLE B075 WE;Lo;0;L;;;;;N;;;;;
+10039;LINEAR B SYLLABLE B040 WI;Lo;0;L;;;;;N;;;;;
+1003A;LINEAR B SYLLABLE B042 WO;Lo;0;L;;;;;N;;;;;
+1003C;LINEAR B SYLLABLE B017 ZA;Lo;0;L;;;;;N;;;;;
+1003D;LINEAR B SYLLABLE B074 ZE;Lo;0;L;;;;;N;;;;;
+1003F;LINEAR B SYLLABLE B020 ZO;Lo;0;L;;;;;N;;;;;
+10040;LINEAR B SYLLABLE B025 A2;Lo;0;L;;;;;N;;;;;
+10041;LINEAR B SYLLABLE B043 A3;Lo;0;L;;;;;N;;;;;
+10042;LINEAR B SYLLABLE B085 AU;Lo;0;L;;;;;N;;;;;
+10043;LINEAR B SYLLABLE B071 DWE;Lo;0;L;;;;;N;;;;;
+10044;LINEAR B SYLLABLE B090 DWO;Lo;0;L;;;;;N;;;;;
+10045;LINEAR B SYLLABLE B048 NWA;Lo;0;L;;;;;N;;;;;
+10046;LINEAR B SYLLABLE B029 PU2;Lo;0;L;;;;;N;;;;;
+10047;LINEAR B SYLLABLE B062 PTE;Lo;0;L;;;;;N;;;;;
+10048;LINEAR B SYLLABLE B076 RA2;Lo;0;L;;;;;N;;;;;
+10049;LINEAR B SYLLABLE B033 RA3;Lo;0;L;;;;;N;;;;;
+1004A;LINEAR B SYLLABLE B068 RO2;Lo;0;L;;;;;N;;;;;
+1004B;LINEAR B SYLLABLE B066 TA2;Lo;0;L;;;;;N;;;;;
+1004C;LINEAR B SYLLABLE B087 TWE;Lo;0;L;;;;;N;;;;;
+1004D;LINEAR B SYLLABLE B091 TWO;Lo;0;L;;;;;N;;;;;
+10050;LINEAR B SYMBOL B018;Lo;0;L;;;;;N;;;;;
+10051;LINEAR B SYMBOL B019;Lo;0;L;;;;;N;;;;;
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+101D8;PHAISTOS DISC SIGN TIARA;So;0;L;;;;;N;;;;;
+101D9;PHAISTOS DISC SIGN ARROW;So;0;L;;;;;N;;;;;
+101DA;PHAISTOS DISC SIGN BOW;So;0;L;;;;;N;;;;;
+101DB;PHAISTOS DISC SIGN SHIELD;So;0;L;;;;;N;;;;;
+101DC;PHAISTOS DISC SIGN CLUB;So;0;L;;;;;N;;;;;
+101DD;PHAISTOS DISC SIGN MANACLES;So;0;L;;;;;N;;;;;
+101DE;PHAISTOS DISC SIGN MATTOCK;So;0;L;;;;;N;;;;;
+101DF;PHAISTOS DISC SIGN SAW;So;0;L;;;;;N;;;;;
+101E0;PHAISTOS DISC SIGN LID;So;0;L;;;;;N;;;;;
+101E1;PHAISTOS DISC SIGN BOOMERANG;So;0;L;;;;;N;;;;;
+101E2;PHAISTOS DISC SIGN CARPENTRY PLANE;So;0;L;;;;;N;;;;;
+101E3;PHAISTOS DISC SIGN DOLIUM;So;0;L;;;;;N;;;;;
+101E4;PHAISTOS DISC SIGN COMB;So;0;L;;;;;N;;;;;
+101E5;PHAISTOS DISC SIGN SLING;So;0;L;;;;;N;;;;;
+101E6;PHAISTOS DISC SIGN COLUMN;So;0;L;;;;;N;;;;;
+101E7;PHAISTOS DISC SIGN BEEHIVE;So;0;L;;;;;N;;;;;
+101E8;PHAISTOS DISC SIGN SHIP;So;0;L;;;;;N;;;;;
+101E9;PHAISTOS DISC SIGN HORN;So;0;L;;;;;N;;;;;
+101EA;PHAISTOS DISC SIGN HIDE;So;0;L;;;;;N;;;;;
+101EB;PHAISTOS DISC SIGN BULLS LEG;So;0;L;;;;;N;;;;;
+101EC;PHAISTOS DISC SIGN CAT;So;0;L;;;;;N;;;;;
+101ED;PHAISTOS DISC SIGN RAM;So;0;L;;;;;N;;;;;
+101EE;PHAISTOS DISC SIGN EAGLE;So;0;L;;;;;N;;;;;
+101EF;PHAISTOS DISC SIGN DOVE;So;0;L;;;;;N;;;;;
+101F0;PHAISTOS DISC SIGN TUNNY;So;0;L;;;;;N;;;;;
+101F1;PHAISTOS DISC SIGN BEE;So;0;L;;;;;N;;;;;
+101F2;PHAISTOS DISC SIGN PLANE TREE;So;0;L;;;;;N;;;;;
+101F3;PHAISTOS DISC SIGN VINE;So;0;L;;;;;N;;;;;
+101F4;PHAISTOS DISC SIGN PAPYRUS;So;0;L;;;;;N;;;;;
+101F5;PHAISTOS DISC SIGN ROSETTE;So;0;L;;;;;N;;;;;
+101F6;PHAISTOS DISC SIGN LILY;So;0;L;;;;;N;;;;;
+101F7;PHAISTOS DISC SIGN OX BACK;So;0;L;;;;;N;;;;;
+101F8;PHAISTOS DISC SIGN FLUTE;So;0;L;;;;;N;;;;;
+101F9;PHAISTOS DISC SIGN GRATER;So;0;L;;;;;N;;;;;
+101FA;PHAISTOS DISC SIGN STRAINER;So;0;L;;;;;N;;;;;
+101FB;PHAISTOS DISC SIGN SMALL AXE;So;0;L;;;;;N;;;;;
+101FC;PHAISTOS DISC SIGN WAVY BAND;So;0;L;;;;;N;;;;;
+101FD;PHAISTOS DISC SIGN COMBINING OBLIQUE STROKE;Mn;220;NSM;;;;;N;;;;;
+10280;LYCIAN LETTER A;Lo;0;L;;;;;N;;;;;
+10281;LYCIAN LETTER E;Lo;0;L;;;;;N;;;;;
+10282;LYCIAN LETTER B;Lo;0;L;;;;;N;;;;;
+10283;LYCIAN LETTER BH;Lo;0;L;;;;;N;;;;;
+10284;LYCIAN LETTER G;Lo;0;L;;;;;N;;;;;
+10285;LYCIAN LETTER D;Lo;0;L;;;;;N;;;;;
+10286;LYCIAN LETTER I;Lo;0;L;;;;;N;;;;;
+10287;LYCIAN LETTER W;Lo;0;L;;;;;N;;;;;
+10288;LYCIAN LETTER Z;Lo;0;L;;;;;N;;;;;
+10289;LYCIAN LETTER TH;Lo;0;L;;;;;N;;;;;
+1028A;LYCIAN LETTER J;Lo;0;L;;;;;N;;;;;
+1028B;LYCIAN LETTER K;Lo;0;L;;;;;N;;;;;
+1028C;LYCIAN LETTER Q;Lo;0;L;;;;;N;;;;;
+1028D;LYCIAN LETTER L;Lo;0;L;;;;;N;;;;;
+1028E;LYCIAN LETTER M;Lo;0;L;;;;;N;;;;;
+1028F;LYCIAN LETTER N;Lo;0;L;;;;;N;;;;;
+10290;LYCIAN LETTER MM;Lo;0;L;;;;;N;;;;;
+10291;LYCIAN LETTER NN;Lo;0;L;;;;;N;;;;;
+10292;LYCIAN LETTER U;Lo;0;L;;;;;N;;;;;
+10293;LYCIAN LETTER P;Lo;0;L;;;;;N;;;;;
+10294;LYCIAN LETTER KK;Lo;0;L;;;;;N;;;;;
+10295;LYCIAN LETTER R;Lo;0;L;;;;;N;;;;;
+10296;LYCIAN LETTER S;Lo;0;L;;;;;N;;;;;
+10297;LYCIAN LETTER T;Lo;0;L;;;;;N;;;;;
+10298;LYCIAN LETTER TT;Lo;0;L;;;;;N;;;;;
+10299;LYCIAN LETTER AN;Lo;0;L;;;;;N;;;;;
+1029A;LYCIAN LETTER EN;Lo;0;L;;;;;N;;;;;
+1029B;LYCIAN LETTER H;Lo;0;L;;;;;N;;;;;
+1029C;LYCIAN LETTER X;Lo;0;L;;;;;N;;;;;
+102A0;CARIAN LETTER A;Lo;0;L;;;;;N;;;;;
+102A1;CARIAN LETTER P2;Lo;0;L;;;;;N;;;;;
+102A2;CARIAN LETTER D;Lo;0;L;;;;;N;;;;;
+102A3;CARIAN LETTER L;Lo;0;L;;;;;N;;;;;
+102A4;CARIAN LETTER UUU;Lo;0;L;;;;;N;;;;;
+102A5;CARIAN LETTER R;Lo;0;L;;;;;N;;;;;
+102A6;CARIAN LETTER LD;Lo;0;L;;;;;N;;;;;
+102A7;CARIAN LETTER A2;Lo;0;L;;;;;N;;;;;
+102A8;CARIAN LETTER Q;Lo;0;L;;;;;N;;;;;
+102A9;CARIAN LETTER B;Lo;0;L;;;;;N;;;;;
+102AA;CARIAN LETTER M;Lo;0;L;;;;;N;;;;;
+102AB;CARIAN LETTER O;Lo;0;L;;;;;N;;;;;
+102AC;CARIAN LETTER D2;Lo;0;L;;;;;N;;;;;
+102AD;CARIAN LETTER T;Lo;0;L;;;;;N;;;;;
+102AE;CARIAN LETTER SH;Lo;0;L;;;;;N;;;;;
+102AF;CARIAN LETTER SH2;Lo;0;L;;;;;N;;;;;
+102B0;CARIAN LETTER S;Lo;0;L;;;;;N;;;;;
+102B1;CARIAN LETTER C-18;Lo;0;L;;;;;N;;;;;
+102B2;CARIAN LETTER U;Lo;0;L;;;;;N;;;;;
+102B3;CARIAN LETTER NN;Lo;0;L;;;;;N;;;;;
+102B4;CARIAN LETTER X;Lo;0;L;;;;;N;;;;;
+102B5;CARIAN LETTER N;Lo;0;L;;;;;N;;;;;
+102B6;CARIAN LETTER TT2;Lo;0;L;;;;;N;;;;;
+102B7;CARIAN LETTER P;Lo;0;L;;;;;N;;;;;
+102B8;CARIAN LETTER SS;Lo;0;L;;;;;N;;;;;
+102B9;CARIAN LETTER I;Lo;0;L;;;;;N;;;;;
+102BA;CARIAN LETTER E;Lo;0;L;;;;;N;;;;;
+102BB;CARIAN LETTER UUUU;Lo;0;L;;;;;N;;;;;
+102BC;CARIAN LETTER K;Lo;0;L;;;;;N;;;;;
+102BD;CARIAN LETTER K2;Lo;0;L;;;;;N;;;;;
+102BE;CARIAN LETTER ND;Lo;0;L;;;;;N;;;;;
+102BF;CARIAN LETTER UU;Lo;0;L;;;;;N;;;;;
+102C0;CARIAN LETTER G;Lo;0;L;;;;;N;;;;;
+102C1;CARIAN LETTER G2;Lo;0;L;;;;;N;;;;;
+102C2;CARIAN LETTER ST;Lo;0;L;;;;;N;;;;;
+102C3;CARIAN LETTER ST2;Lo;0;L;;;;;N;;;;;
+102C4;CARIAN LETTER NG;Lo;0;L;;;;;N;;;;;
+102C5;CARIAN LETTER II;Lo;0;L;;;;;N;;;;;
+102C6;CARIAN LETTER C-39;Lo;0;L;;;;;N;;;;;
+102C7;CARIAN LETTER TT;Lo;0;L;;;;;N;;;;;
+102C8;CARIAN LETTER UUU2;Lo;0;L;;;;;N;;;;;
+102C9;CARIAN LETTER RR;Lo;0;L;;;;;N;;;;;
+102CA;CARIAN LETTER MB;Lo;0;L;;;;;N;;;;;
+102CB;CARIAN LETTER MB2;Lo;0;L;;;;;N;;;;;
+102CC;CARIAN LETTER MB3;Lo;0;L;;;;;N;;;;;
+102CD;CARIAN LETTER MB4;Lo;0;L;;;;;N;;;;;
+102CE;CARIAN LETTER LD2;Lo;0;L;;;;;N;;;;;
+102CF;CARIAN LETTER E2;Lo;0;L;;;;;N;;;;;
+102D0;CARIAN LETTER UUU3;Lo;0;L;;;;;N;;;;;
+10300;OLD ITALIC LETTER A;Lo;0;L;;;;;N;;;;;
+10301;OLD ITALIC LETTER BE;Lo;0;L;;;;;N;;;;;
+10302;OLD ITALIC LETTER KE;Lo;0;L;;;;;N;;;;;
+10303;OLD ITALIC LETTER DE;Lo;0;L;;;;;N;;;;;
+10304;OLD ITALIC LETTER E;Lo;0;L;;;;;N;;;;;
+10305;OLD ITALIC LETTER VE;Lo;0;L;;;;;N;;;;;
+10306;OLD ITALIC LETTER ZE;Lo;0;L;;;;;N;;;;;
+10307;OLD ITALIC LETTER HE;Lo;0;L;;;;;N;;;;;
+10308;OLD ITALIC LETTER THE;Lo;0;L;;;;;N;;;;;
+10309;OLD ITALIC LETTER I;Lo;0;L;;;;;N;;;;;
+1030A;OLD ITALIC LETTER KA;Lo;0;L;;;;;N;;;;;
+1030B;OLD ITALIC LETTER EL;Lo;0;L;;;;;N;;;;;
+1030C;OLD ITALIC LETTER EM;Lo;0;L;;;;;N;;;;;
+1030D;OLD ITALIC LETTER EN;Lo;0;L;;;;;N;;;;;
+1030E;OLD ITALIC LETTER ESH;Lo;0;L;;;;;N;;;;;
+1030F;OLD ITALIC LETTER O;Lo;0;L;;;;;N;;;;;
+10310;OLD ITALIC LETTER PE;Lo;0;L;;;;;N;;;;;
+10311;OLD ITALIC LETTER SHE;Lo;0;L;;;;;N;;;;;
+10312;OLD ITALIC LETTER KU;Lo;0;L;;;;;N;;;;;
+10313;OLD ITALIC LETTER ER;Lo;0;L;;;;;N;;;;;
+10314;OLD ITALIC LETTER ES;Lo;0;L;;;;;N;;;;;
+10315;OLD ITALIC LETTER TE;Lo;0;L;;;;;N;;;;;
+10316;OLD ITALIC LETTER U;Lo;0;L;;;;;N;;;;;
+10317;OLD ITALIC LETTER EKS;Lo;0;L;;;;;N;;;;;
+10318;OLD ITALIC LETTER PHE;Lo;0;L;;;;;N;;;;;
+10319;OLD ITALIC LETTER KHE;Lo;0;L;;;;;N;;;;;
+1031A;OLD ITALIC LETTER EF;Lo;0;L;;;;;N;;;;;
+1031B;OLD ITALIC LETTER ERS;Lo;0;L;;;;;N;;;;;
+1031C;OLD ITALIC LETTER CHE;Lo;0;L;;;;;N;;;;;
+1031D;OLD ITALIC LETTER II;Lo;0;L;;;;;N;;;;;
+1031E;OLD ITALIC LETTER UU;Lo;0;L;;;;;N;;;;;
+10320;OLD ITALIC NUMERAL ONE;No;0;L;;;;1;N;;;;;
+10321;OLD ITALIC NUMERAL FIVE;No;0;L;;;;5;N;;;;;
+10322;OLD ITALIC NUMERAL TEN;No;0;L;;;;10;N;;;;;
+10323;OLD ITALIC NUMERAL FIFTY;No;0;L;;;;50;N;;;;;
+10330;GOTHIC LETTER AHSA;Lo;0;L;;;;;N;;;;;
+10331;GOTHIC LETTER BAIRKAN;Lo;0;L;;;;;N;;;;;
+10332;GOTHIC LETTER GIBA;Lo;0;L;;;;;N;;;;;
+10333;GOTHIC LETTER DAGS;Lo;0;L;;;;;N;;;;;
+10334;GOTHIC LETTER AIHVUS;Lo;0;L;;;;;N;;;;;
+10335;GOTHIC LETTER QAIRTHRA;Lo;0;L;;;;;N;;;;;
+10336;GOTHIC LETTER IUJA;Lo;0;L;;;;;N;;;;;
+10337;GOTHIC LETTER HAGL;Lo;0;L;;;;;N;;;;;
+10338;GOTHIC LETTER THIUTH;Lo;0;L;;;;;N;;;;;
+10339;GOTHIC LETTER EIS;Lo;0;L;;;;;N;;;;;
+1033A;GOTHIC LETTER KUSMA;Lo;0;L;;;;;N;;;;;
+1033B;GOTHIC LETTER LAGUS;Lo;0;L;;;;;N;;;;;
+1033C;GOTHIC LETTER MANNA;Lo;0;L;;;;;N;;;;;
+1033D;GOTHIC LETTER NAUTHS;Lo;0;L;;;;;N;;;;;
+1033E;GOTHIC LETTER JER;Lo;0;L;;;;;N;;;;;
+1033F;GOTHIC LETTER URUS;Lo;0;L;;;;;N;;;;;
+10340;GOTHIC LETTER PAIRTHRA;Lo;0;L;;;;;N;;;;;
+10341;GOTHIC LETTER NINETY;Nl;0;L;;;;90;N;;;;;
+10342;GOTHIC LETTER RAIDA;Lo;0;L;;;;;N;;;;;
+10343;GOTHIC LETTER SAUIL;Lo;0;L;;;;;N;;;;;
+10344;GOTHIC LETTER TEIWS;Lo;0;L;;;;;N;;;;;
+10345;GOTHIC LETTER WINJA;Lo;0;L;;;;;N;;;;;
+10346;GOTHIC LETTER FAIHU;Lo;0;L;;;;;N;;;;;
+10347;GOTHIC LETTER IGGWS;Lo;0;L;;;;;N;;;;;
+10348;GOTHIC LETTER HWAIR;Lo;0;L;;;;;N;;;;;
+10349;GOTHIC LETTER OTHAL;Lo;0;L;;;;;N;;;;;
+1034A;GOTHIC LETTER NINE HUNDRED;Nl;0;L;;;;900;N;;;;;
+10380;UGARITIC LETTER ALPA;Lo;0;L;;;;;N;;;;;
+10381;UGARITIC LETTER BETA;Lo;0;L;;;;;N;;;;;
+10382;UGARITIC LETTER GAMLA;Lo;0;L;;;;;N;;;;;
+10383;UGARITIC LETTER KHA;Lo;0;L;;;;;N;;;;;
+10384;UGARITIC LETTER DELTA;Lo;0;L;;;;;N;;;;;
+10385;UGARITIC LETTER HO;Lo;0;L;;;;;N;;;;;
+10386;UGARITIC LETTER WO;Lo;0;L;;;;;N;;;;;
+10387;UGARITIC LETTER ZETA;Lo;0;L;;;;;N;;;;;
+10388;UGARITIC LETTER HOTA;Lo;0;L;;;;;N;;;;;
+10389;UGARITIC LETTER TET;Lo;0;L;;;;;N;;;;;
+1038A;UGARITIC LETTER YOD;Lo;0;L;;;;;N;;;;;
+1038B;UGARITIC LETTER KAF;Lo;0;L;;;;;N;;;;;
+1038C;UGARITIC LETTER SHIN;Lo;0;L;;;;;N;;;;;
+1038D;UGARITIC LETTER LAMDA;Lo;0;L;;;;;N;;;;;
+1038E;UGARITIC LETTER MEM;Lo;0;L;;;;;N;;;;;
+1038F;UGARITIC LETTER DHAL;Lo;0;L;;;;;N;;;;;
+10390;UGARITIC LETTER NUN;Lo;0;L;;;;;N;;;;;
+10391;UGARITIC LETTER ZU;Lo;0;L;;;;;N;;;;;
+10392;UGARITIC LETTER SAMKA;Lo;0;L;;;;;N;;;;;
+10393;UGARITIC LETTER AIN;Lo;0;L;;;;;N;;;;;
+10394;UGARITIC LETTER PU;Lo;0;L;;;;;N;;;;;
+10395;UGARITIC LETTER SADE;Lo;0;L;;;;;N;;;;;
+10396;UGARITIC LETTER QOPA;Lo;0;L;;;;;N;;;;;
+10397;UGARITIC LETTER RASHA;Lo;0;L;;;;;N;;;;;
+10398;UGARITIC LETTER THANNA;Lo;0;L;;;;;N;;;;;
+10399;UGARITIC LETTER GHAIN;Lo;0;L;;;;;N;;;;;
+1039A;UGARITIC LETTER TO;Lo;0;L;;;;;N;;;;;
+1039B;UGARITIC LETTER I;Lo;0;L;;;;;N;;;;;
+1039C;UGARITIC LETTER U;Lo;0;L;;;;;N;;;;;
+1039D;UGARITIC LETTER SSU;Lo;0;L;;;;;N;;;;;
+1039F;UGARITIC WORD DIVIDER;Po;0;L;;;;;N;;;;;
+103A0;OLD PERSIAN SIGN A;Lo;0;L;;;;;N;;;;;
+103A1;OLD PERSIAN SIGN I;Lo;0;L;;;;;N;;;;;
+103A2;OLD PERSIAN SIGN U;Lo;0;L;;;;;N;;;;;
+103A3;OLD PERSIAN SIGN KA;Lo;0;L;;;;;N;;;;;
+103A4;OLD PERSIAN SIGN KU;Lo;0;L;;;;;N;;;;;
+103A5;OLD PERSIAN SIGN GA;Lo;0;L;;;;;N;;;;;
+103A6;OLD PERSIAN SIGN GU;Lo;0;L;;;;;N;;;;;
+103A7;OLD PERSIAN SIGN XA;Lo;0;L;;;;;N;;;;;
+103A8;OLD PERSIAN SIGN CA;Lo;0;L;;;;;N;;;;;
+103A9;OLD PERSIAN SIGN JA;Lo;0;L;;;;;N;;;;;
+103AA;OLD PERSIAN SIGN JI;Lo;0;L;;;;;N;;;;;
+103AB;OLD PERSIAN SIGN TA;Lo;0;L;;;;;N;;;;;
+103AC;OLD PERSIAN SIGN TU;Lo;0;L;;;;;N;;;;;
+103AD;OLD PERSIAN SIGN DA;Lo;0;L;;;;;N;;;;;
+103AE;OLD PERSIAN SIGN DI;Lo;0;L;;;;;N;;;;;
+103AF;OLD PERSIAN SIGN DU;Lo;0;L;;;;;N;;;;;
+103B0;OLD PERSIAN SIGN THA;Lo;0;L;;;;;N;;;;;
+103B1;OLD PERSIAN SIGN PA;Lo;0;L;;;;;N;;;;;
+103B2;OLD PERSIAN SIGN BA;Lo;0;L;;;;;N;;;;;
+103B3;OLD PERSIAN SIGN FA;Lo;0;L;;;;;N;;;;;
+103B4;OLD PERSIAN SIGN NA;Lo;0;L;;;;;N;;;;;
+103B5;OLD PERSIAN SIGN NU;Lo;0;L;;;;;N;;;;;
+103B6;OLD PERSIAN SIGN MA;Lo;0;L;;;;;N;;;;;
+103B7;OLD PERSIAN SIGN MI;Lo;0;L;;;;;N;;;;;
+103B8;OLD PERSIAN SIGN MU;Lo;0;L;;;;;N;;;;;
+103B9;OLD PERSIAN SIGN YA;Lo;0;L;;;;;N;;;;;
+103BA;OLD PERSIAN SIGN VA;Lo;0;L;;;;;N;;;;;
+103BB;OLD PERSIAN SIGN VI;Lo;0;L;;;;;N;;;;;
+103BC;OLD PERSIAN SIGN RA;Lo;0;L;;;;;N;;;;;
+103BD;OLD PERSIAN SIGN RU;Lo;0;L;;;;;N;;;;;
+103BE;OLD PERSIAN SIGN LA;Lo;0;L;;;;;N;;;;;
+103BF;OLD PERSIAN SIGN SA;Lo;0;L;;;;;N;;;;;
+103C0;OLD PERSIAN SIGN ZA;Lo;0;L;;;;;N;;;;;
+103C1;OLD PERSIAN SIGN SHA;Lo;0;L;;;;;N;;;;;
+103C2;OLD PERSIAN SIGN SSA;Lo;0;L;;;;;N;;;;;
+103C3;OLD PERSIAN SIGN HA;Lo;0;L;;;;;N;;;;;
+103C8;OLD PERSIAN SIGN AURAMAZDAA;Lo;0;L;;;;;N;;;;;
+103C9;OLD PERSIAN SIGN AURAMAZDAA-2;Lo;0;L;;;;;N;;;;;
+103CA;OLD PERSIAN SIGN AURAMAZDAAHA;Lo;0;L;;;;;N;;;;;
+103CB;OLD PERSIAN SIGN XSHAAYATHIYA;Lo;0;L;;;;;N;;;;;
+103CC;OLD PERSIAN SIGN DAHYAAUSH;Lo;0;L;;;;;N;;;;;
+103CD;OLD PERSIAN SIGN DAHYAAUSH-2;Lo;0;L;;;;;N;;;;;
+103CE;OLD PERSIAN SIGN BAGA;Lo;0;L;;;;;N;;;;;
+103CF;OLD PERSIAN SIGN BUUMISH;Lo;0;L;;;;;N;;;;;
+103D0;OLD PERSIAN WORD DIVIDER;Po;0;L;;;;;N;;;;;
+103D1;OLD PERSIAN NUMBER ONE;Nl;0;L;;;;1;N;;;;;
+103D2;OLD PERSIAN NUMBER TWO;Nl;0;L;;;;2;N;;;;;
+103D3;OLD PERSIAN NUMBER TEN;Nl;0;L;;;;10;N;;;;;
+103D4;OLD PERSIAN NUMBER TWENTY;Nl;0;L;;;;20;N;;;;;
+103D5;OLD PERSIAN NUMBER HUNDRED;Nl;0;L;;;;100;N;;;;;
+10400;DESERET CAPITAL LETTER LONG I;Lu;0;L;;;;;N;;;;10428;
+10401;DESERET CAPITAL LETTER LONG E;Lu;0;L;;;;;N;;;;10429;
+10402;DESERET CAPITAL LETTER LONG A;Lu;0;L;;;;;N;;;;1042A;
+10403;DESERET CAPITAL LETTER LONG AH;Lu;0;L;;;;;N;;;;1042B;
+10404;DESERET CAPITAL LETTER LONG O;Lu;0;L;;;;;N;;;;1042C;
+10405;DESERET CAPITAL LETTER LONG OO;Lu;0;L;;;;;N;;;;1042D;
+10406;DESERET CAPITAL LETTER SHORT I;Lu;0;L;;;;;N;;;;1042E;
+10407;DESERET CAPITAL LETTER SHORT E;Lu;0;L;;;;;N;;;;1042F;
+10408;DESERET CAPITAL LETTER SHORT A;Lu;0;L;;;;;N;;;;10430;
+10409;DESERET CAPITAL LETTER SHORT AH;Lu;0;L;;;;;N;;;;10431;
+1040A;DESERET CAPITAL LETTER SHORT O;Lu;0;L;;;;;N;;;;10432;
+1040B;DESERET CAPITAL LETTER SHORT OO;Lu;0;L;;;;;N;;;;10433;
+1040C;DESERET CAPITAL LETTER AY;Lu;0;L;;;;;N;;;;10434;
+1040D;DESERET CAPITAL LETTER OW;Lu;0;L;;;;;N;;;;10435;
+1040E;DESERET CAPITAL LETTER WU;Lu;0;L;;;;;N;;;;10436;
+1040F;DESERET CAPITAL LETTER YEE;Lu;0;L;;;;;N;;;;10437;
+10410;DESERET CAPITAL LETTER H;Lu;0;L;;;;;N;;;;10438;
+10411;DESERET CAPITAL LETTER PEE;Lu;0;L;;;;;N;;;;10439;
+10412;DESERET CAPITAL LETTER BEE;Lu;0;L;;;;;N;;;;1043A;
+10413;DESERET CAPITAL LETTER TEE;Lu;0;L;;;;;N;;;;1043B;
+10414;DESERET CAPITAL LETTER DEE;Lu;0;L;;;;;N;;;;1043C;
+10415;DESERET CAPITAL LETTER CHEE;Lu;0;L;;;;;N;;;;1043D;
+10416;DESERET CAPITAL LETTER JEE;Lu;0;L;;;;;N;;;;1043E;
+10417;DESERET CAPITAL LETTER KAY;Lu;0;L;;;;;N;;;;1043F;
+10418;DESERET CAPITAL LETTER GAY;Lu;0;L;;;;;N;;;;10440;
+10419;DESERET CAPITAL LETTER EF;Lu;0;L;;;;;N;;;;10441;
+1041A;DESERET CAPITAL LETTER VEE;Lu;0;L;;;;;N;;;;10442;
+1041B;DESERET CAPITAL LETTER ETH;Lu;0;L;;;;;N;;;;10443;
+1041C;DESERET CAPITAL LETTER THEE;Lu;0;L;;;;;N;;;;10444;
+1041D;DESERET CAPITAL LETTER ES;Lu;0;L;;;;;N;;;;10445;
+1041E;DESERET CAPITAL LETTER ZEE;Lu;0;L;;;;;N;;;;10446;
+1041F;DESERET CAPITAL LETTER ESH;Lu;0;L;;;;;N;;;;10447;
+10420;DESERET CAPITAL LETTER ZHEE;Lu;0;L;;;;;N;;;;10448;
+10421;DESERET CAPITAL LETTER ER;Lu;0;L;;;;;N;;;;10449;
+10422;DESERET CAPITAL LETTER EL;Lu;0;L;;;;;N;;;;1044A;
+10423;DESERET CAPITAL LETTER EM;Lu;0;L;;;;;N;;;;1044B;
+10424;DESERET CAPITAL LETTER EN;Lu;0;L;;;;;N;;;;1044C;
+10425;DESERET CAPITAL LETTER ENG;Lu;0;L;;;;;N;;;;1044D;
+10426;DESERET CAPITAL LETTER OI;Lu;0;L;;;;;N;;;;1044E;
+10427;DESERET CAPITAL LETTER EW;Lu;0;L;;;;;N;;;;1044F;
+10428;DESERET SMALL LETTER LONG I;Ll;0;L;;;;;N;;;10400;;10400
+10429;DESERET SMALL LETTER LONG E;Ll;0;L;;;;;N;;;10401;;10401
+1042A;DESERET SMALL LETTER LONG A;Ll;0;L;;;;;N;;;10402;;10402
+1042B;DESERET SMALL LETTER LONG AH;Ll;0;L;;;;;N;;;10403;;10403
+1042C;DESERET SMALL LETTER LONG O;Ll;0;L;;;;;N;;;10404;;10404
+1042D;DESERET SMALL LETTER LONG OO;Ll;0;L;;;;;N;;;10405;;10405
+1042E;DESERET SMALL LETTER SHORT I;Ll;0;L;;;;;N;;;10406;;10406
+1042F;DESERET SMALL LETTER SHORT E;Ll;0;L;;;;;N;;;10407;;10407
+10430;DESERET SMALL LETTER SHORT A;Ll;0;L;;;;;N;;;10408;;10408
+10431;DESERET SMALL LETTER SHORT AH;Ll;0;L;;;;;N;;;10409;;10409
+10432;DESERET SMALL LETTER SHORT O;Ll;0;L;;;;;N;;;1040A;;1040A
+10433;DESERET SMALL LETTER SHORT OO;Ll;0;L;;;;;N;;;1040B;;1040B
+10434;DESERET SMALL LETTER AY;Ll;0;L;;;;;N;;;1040C;;1040C
+10435;DESERET SMALL LETTER OW;Ll;0;L;;;;;N;;;1040D;;1040D
+10436;DESERET SMALL LETTER WU;Ll;0;L;;;;;N;;;1040E;;1040E
+10437;DESERET SMALL LETTER YEE;Ll;0;L;;;;;N;;;1040F;;1040F
+10438;DESERET SMALL LETTER H;Ll;0;L;;;;;N;;;10410;;10410
+10439;DESERET SMALL LETTER PEE;Ll;0;L;;;;;N;;;10411;;10411
+1043A;DESERET SMALL LETTER BEE;Ll;0;L;;;;;N;;;10412;;10412
+1043B;DESERET SMALL LETTER TEE;Ll;0;L;;;;;N;;;10413;;10413
+1043C;DESERET SMALL LETTER DEE;Ll;0;L;;;;;N;;;10414;;10414
+1043D;DESERET SMALL LETTER CHEE;Ll;0;L;;;;;N;;;10415;;10415
+1043E;DESERET SMALL LETTER JEE;Ll;0;L;;;;;N;;;10416;;10416
+1043F;DESERET SMALL LETTER KAY;Ll;0;L;;;;;N;;;10417;;10417
+10440;DESERET SMALL LETTER GAY;Ll;0;L;;;;;N;;;10418;;10418
+10441;DESERET SMALL LETTER EF;Ll;0;L;;;;;N;;;10419;;10419
+10442;DESERET SMALL LETTER VEE;Ll;0;L;;;;;N;;;1041A;;1041A
+10443;DESERET SMALL LETTER ETH;Ll;0;L;;;;;N;;;1041B;;1041B
+10444;DESERET SMALL LETTER THEE;Ll;0;L;;;;;N;;;1041C;;1041C
+10445;DESERET SMALL LETTER ES;Ll;0;L;;;;;N;;;1041D;;1041D
+10446;DESERET SMALL LETTER ZEE;Ll;0;L;;;;;N;;;1041E;;1041E
+10447;DESERET SMALL LETTER ESH;Ll;0;L;;;;;N;;;1041F;;1041F
+10448;DESERET SMALL LETTER ZHEE;Ll;0;L;;;;;N;;;10420;;10420
+10449;DESERET SMALL LETTER ER;Ll;0;L;;;;;N;;;10421;;10421
+1044A;DESERET SMALL LETTER EL;Ll;0;L;;;;;N;;;10422;;10422
+1044B;DESERET SMALL LETTER EM;Ll;0;L;;;;;N;;;10423;;10423
+1044C;DESERET SMALL LETTER EN;Ll;0;L;;;;;N;;;10424;;10424
+1044D;DESERET SMALL LETTER ENG;Ll;0;L;;;;;N;;;10425;;10425
+1044E;DESERET SMALL LETTER OI;Ll;0;L;;;;;N;;;10426;;10426
+1044F;DESERET SMALL LETTER EW;Ll;0;L;;;;;N;;;10427;;10427
+10450;SHAVIAN LETTER PEEP;Lo;0;L;;;;;N;;;;;
+10451;SHAVIAN LETTER TOT;Lo;0;L;;;;;N;;;;;
+10452;SHAVIAN LETTER KICK;Lo;0;L;;;;;N;;;;;
+10453;SHAVIAN LETTER FEE;Lo;0;L;;;;;N;;;;;
+10454;SHAVIAN LETTER THIGH;Lo;0;L;;;;;N;;;;;
+10455;SHAVIAN LETTER SO;Lo;0;L;;;;;N;;;;;
+10456;SHAVIAN LETTER SURE;Lo;0;L;;;;;N;;;;;
+10457;SHAVIAN LETTER CHURCH;Lo;0;L;;;;;N;;;;;
+10458;SHAVIAN LETTER YEA;Lo;0;L;;;;;N;;;;;
+10459;SHAVIAN LETTER HUNG;Lo;0;L;;;;;N;;;;;
+1045A;SHAVIAN LETTER BIB;Lo;0;L;;;;;N;;;;;
+1045B;SHAVIAN LETTER DEAD;Lo;0;L;;;;;N;;;;;
+1045C;SHAVIAN LETTER GAG;Lo;0;L;;;;;N;;;;;
+1045D;SHAVIAN LETTER VOW;Lo;0;L;;;;;N;;;;;
+1045E;SHAVIAN LETTER THEY;Lo;0;L;;;;;N;;;;;
+1045F;SHAVIAN LETTER ZOO;Lo;0;L;;;;;N;;;;;
+10460;SHAVIAN LETTER MEASURE;Lo;0;L;;;;;N;;;;;
+10461;SHAVIAN LETTER JUDGE;Lo;0;L;;;;;N;;;;;
+10462;SHAVIAN LETTER WOE;Lo;0;L;;;;;N;;;;;
+10463;SHAVIAN LETTER HA-HA;Lo;0;L;;;;;N;;;;;
+10464;SHAVIAN LETTER LOLL;Lo;0;L;;;;;N;;;;;
+10465;SHAVIAN LETTER MIME;Lo;0;L;;;;;N;;;;;
+10466;SHAVIAN LETTER IF;Lo;0;L;;;;;N;;;;;
+10467;SHAVIAN LETTER EGG;Lo;0;L;;;;;N;;;;;
+10468;SHAVIAN LETTER ASH;Lo;0;L;;;;;N;;;;;
+10469;SHAVIAN LETTER ADO;Lo;0;L;;;;;N;;;;;
+1046A;SHAVIAN LETTER ON;Lo;0;L;;;;;N;;;;;
+1046B;SHAVIAN LETTER WOOL;Lo;0;L;;;;;N;;;;;
+1046C;SHAVIAN LETTER OUT;Lo;0;L;;;;;N;;;;;
+1046D;SHAVIAN LETTER AH;Lo;0;L;;;;;N;;;;;
+1046E;SHAVIAN LETTER ROAR;Lo;0;L;;;;;N;;;;;
+1046F;SHAVIAN LETTER NUN;Lo;0;L;;;;;N;;;;;
+10470;SHAVIAN LETTER EAT;Lo;0;L;;;;;N;;;;;
+10471;SHAVIAN LETTER AGE;Lo;0;L;;;;;N;;;;;
+10472;SHAVIAN LETTER ICE;Lo;0;L;;;;;N;;;;;
+10473;SHAVIAN LETTER UP;Lo;0;L;;;;;N;;;;;
+10474;SHAVIAN LETTER OAK;Lo;0;L;;;;;N;;;;;
+10475;SHAVIAN LETTER OOZE;Lo;0;L;;;;;N;;;;;
+10476;SHAVIAN LETTER OIL;Lo;0;L;;;;;N;;;;;
+10477;SHAVIAN LETTER AWE;Lo;0;L;;;;;N;;;;;
+10478;SHAVIAN LETTER ARE;Lo;0;L;;;;;N;;;;;
+10479;SHAVIAN LETTER OR;Lo;0;L;;;;;N;;;;;
+1047A;SHAVIAN LETTER AIR;Lo;0;L;;;;;N;;;;;
+1047B;SHAVIAN LETTER ERR;Lo;0;L;;;;;N;;;;;
+1047C;SHAVIAN LETTER ARRAY;Lo;0;L;;;;;N;;;;;
+1047D;SHAVIAN LETTER EAR;Lo;0;L;;;;;N;;;;;
+1047E;SHAVIAN LETTER IAN;Lo;0;L;;;;;N;;;;;
+1047F;SHAVIAN LETTER YEW;Lo;0;L;;;;;N;;;;;
+10480;OSMANYA LETTER ALEF;Lo;0;L;;;;;N;;;;;
+10481;OSMANYA LETTER BA;Lo;0;L;;;;;N;;;;;
+10482;OSMANYA LETTER TA;Lo;0;L;;;;;N;;;;;
+10483;OSMANYA LETTER JA;Lo;0;L;;;;;N;;;;;
+10484;OSMANYA LETTER XA;Lo;0;L;;;;;N;;;;;
+10485;OSMANYA LETTER KHA;Lo;0;L;;;;;N;;;;;
+10486;OSMANYA LETTER DEEL;Lo;0;L;;;;;N;;;;;
+10487;OSMANYA LETTER RA;Lo;0;L;;;;;N;;;;;
+10488;OSMANYA LETTER SA;Lo;0;L;;;;;N;;;;;
+10489;OSMANYA LETTER SHIIN;Lo;0;L;;;;;N;;;;;
+1048A;OSMANYA LETTER DHA;Lo;0;L;;;;;N;;;;;
+1048B;OSMANYA LETTER CAYN;Lo;0;L;;;;;N;;;;;
+1048C;OSMANYA LETTER GA;Lo;0;L;;;;;N;;;;;
+1048D;OSMANYA LETTER FA;Lo;0;L;;;;;N;;;;;
+1048E;OSMANYA LETTER QAAF;Lo;0;L;;;;;N;;;;;
+1048F;OSMANYA LETTER KAAF;Lo;0;L;;;;;N;;;;;
+10490;OSMANYA LETTER LAAN;Lo;0;L;;;;;N;;;;;
+10491;OSMANYA LETTER MIIN;Lo;0;L;;;;;N;;;;;
+10492;OSMANYA LETTER NUUN;Lo;0;L;;;;;N;;;;;
+10493;OSMANYA LETTER WAW;Lo;0;L;;;;;N;;;;;
+10494;OSMANYA LETTER HA;Lo;0;L;;;;;N;;;;;
+10495;OSMANYA LETTER YA;Lo;0;L;;;;;N;;;;;
+10496;OSMANYA LETTER A;Lo;0;L;;;;;N;;;;;
+10497;OSMANYA LETTER E;Lo;0;L;;;;;N;;;;;
+10498;OSMANYA LETTER I;Lo;0;L;;;;;N;;;;;
+10499;OSMANYA LETTER O;Lo;0;L;;;;;N;;;;;
+1049A;OSMANYA LETTER U;Lo;0;L;;;;;N;;;;;
+1049B;OSMANYA LETTER AA;Lo;0;L;;;;;N;;;;;
+1049C;OSMANYA LETTER EE;Lo;0;L;;;;;N;;;;;
+1049D;OSMANYA LETTER OO;Lo;0;L;;;;;N;;;;;
+104A0;OSMANYA DIGIT ZERO;Nd;0;L;;0;0;0;N;;;;;
+104A1;OSMANYA DIGIT ONE;Nd;0;L;;1;1;1;N;;;;;
+104A2;OSMANYA DIGIT TWO;Nd;0;L;;2;2;2;N;;;;;
+104A3;OSMANYA DIGIT THREE;Nd;0;L;;3;3;3;N;;;;;
+104A4;OSMANYA DIGIT FOUR;Nd;0;L;;4;4;4;N;;;;;
+104A5;OSMANYA DIGIT FIVE;Nd;0;L;;5;5;5;N;;;;;
+104A6;OSMANYA DIGIT SIX;Nd;0;L;;6;6;6;N;;;;;
+104A7;OSMANYA DIGIT SEVEN;Nd;0;L;;7;7;7;N;;;;;
+104A8;OSMANYA DIGIT EIGHT;Nd;0;L;;8;8;8;N;;;;;
+104A9;OSMANYA DIGIT NINE;Nd;0;L;;9;9;9;N;;;;;
+10800;CYPRIOT SYLLABLE A;Lo;0;R;;;;;N;;;;;
+10801;CYPRIOT SYLLABLE E;Lo;0;R;;;;;N;;;;;
+10802;CYPRIOT SYLLABLE I;Lo;0;R;;;;;N;;;;;
+10803;CYPRIOT SYLLABLE O;Lo;0;R;;;;;N;;;;;
+10804;CYPRIOT SYLLABLE U;Lo;0;R;;;;;N;;;;;
+10805;CYPRIOT SYLLABLE JA;Lo;0;R;;;;;N;;;;;
+10808;CYPRIOT SYLLABLE JO;Lo;0;R;;;;;N;;;;;
+1080A;CYPRIOT SYLLABLE KA;Lo;0;R;;;;;N;;;;;
+1080B;CYPRIOT SYLLABLE KE;Lo;0;R;;;;;N;;;;;
+1080C;CYPRIOT SYLLABLE KI;Lo;0;R;;;;;N;;;;;
+1080D;CYPRIOT SYLLABLE KO;Lo;0;R;;;;;N;;;;;
+1080E;CYPRIOT SYLLABLE KU;Lo;0;R;;;;;N;;;;;
+1080F;CYPRIOT SYLLABLE LA;Lo;0;R;;;;;N;;;;;
+10810;CYPRIOT SYLLABLE LE;Lo;0;R;;;;;N;;;;;
+10811;CYPRIOT SYLLABLE LI;Lo;0;R;;;;;N;;;;;
+10812;CYPRIOT SYLLABLE LO;Lo;0;R;;;;;N;;;;;
+10813;CYPRIOT SYLLABLE LU;Lo;0;R;;;;;N;;;;;
+10814;CYPRIOT SYLLABLE MA;Lo;0;R;;;;;N;;;;;
+10815;CYPRIOT SYLLABLE ME;Lo;0;R;;;;;N;;;;;
+10816;CYPRIOT SYLLABLE MI;Lo;0;R;;;;;N;;;;;
+10817;CYPRIOT SYLLABLE MO;Lo;0;R;;;;;N;;;;;
+10818;CYPRIOT SYLLABLE MU;Lo;0;R;;;;;N;;;;;
+10819;CYPRIOT SYLLABLE NA;Lo;0;R;;;;;N;;;;;
+1081A;CYPRIOT SYLLABLE NE;Lo;0;R;;;;;N;;;;;
+1081B;CYPRIOT SYLLABLE NI;Lo;0;R;;;;;N;;;;;
+1081C;CYPRIOT SYLLABLE NO;Lo;0;R;;;;;N;;;;;
+1081D;CYPRIOT SYLLABLE NU;Lo;0;R;;;;;N;;;;;
+1081E;CYPRIOT SYLLABLE PA;Lo;0;R;;;;;N;;;;;
+1081F;CYPRIOT SYLLABLE PE;Lo;0;R;;;;;N;;;;;
+10820;CYPRIOT SYLLABLE PI;Lo;0;R;;;;;N;;;;;
+10821;CYPRIOT SYLLABLE PO;Lo;0;R;;;;;N;;;;;
+10822;CYPRIOT SYLLABLE PU;Lo;0;R;;;;;N;;;;;
+10823;CYPRIOT SYLLABLE RA;Lo;0;R;;;;;N;;;;;
+10824;CYPRIOT SYLLABLE RE;Lo;0;R;;;;;N;;;;;
+10825;CYPRIOT SYLLABLE RI;Lo;0;R;;;;;N;;;;;
+10826;CYPRIOT SYLLABLE RO;Lo;0;R;;;;;N;;;;;
+10827;CYPRIOT SYLLABLE RU;Lo;0;R;;;;;N;;;;;
+10828;CYPRIOT SYLLABLE SA;Lo;0;R;;;;;N;;;;;
+10829;CYPRIOT SYLLABLE SE;Lo;0;R;;;;;N;;;;;
+1082A;CYPRIOT SYLLABLE SI;Lo;0;R;;;;;N;;;;;
+1082B;CYPRIOT SYLLABLE SO;Lo;0;R;;;;;N;;;;;
+1082C;CYPRIOT SYLLABLE SU;Lo;0;R;;;;;N;;;;;
+1082D;CYPRIOT SYLLABLE TA;Lo;0;R;;;;;N;;;;;
+1082E;CYPRIOT SYLLABLE TE;Lo;0;R;;;;;N;;;;;
+1082F;CYPRIOT SYLLABLE TI;Lo;0;R;;;;;N;;;;;
+10830;CYPRIOT SYLLABLE TO;Lo;0;R;;;;;N;;;;;
+10831;CYPRIOT SYLLABLE TU;Lo;0;R;;;;;N;;;;;
+10832;CYPRIOT SYLLABLE WA;Lo;0;R;;;;;N;;;;;
+10833;CYPRIOT SYLLABLE WE;Lo;0;R;;;;;N;;;;;
+10834;CYPRIOT SYLLABLE WI;Lo;0;R;;;;;N;;;;;
+10835;CYPRIOT SYLLABLE WO;Lo;0;R;;;;;N;;;;;
+10837;CYPRIOT SYLLABLE XA;Lo;0;R;;;;;N;;;;;
+10838;CYPRIOT SYLLABLE XE;Lo;0;R;;;;;N;;;;;
+1083C;CYPRIOT SYLLABLE ZA;Lo;0;R;;;;;N;;;;;
+1083F;CYPRIOT SYLLABLE ZO;Lo;0;R;;;;;N;;;;;
+10840;IMPERIAL ARAMAIC LETTER ALEPH;Lo;0;R;;;;;N;;;;;
+10841;IMPERIAL ARAMAIC LETTER BETH;Lo;0;R;;;;;N;;;;;
+10842;IMPERIAL ARAMAIC LETTER GIMEL;Lo;0;R;;;;;N;;;;;
+10843;IMPERIAL ARAMAIC LETTER DALETH;Lo;0;R;;;;;N;;;;;
+10844;IMPERIAL ARAMAIC LETTER HE;Lo;0;R;;;;;N;;;;;
+10845;IMPERIAL ARAMAIC LETTER WAW;Lo;0;R;;;;;N;;;;;
+10846;IMPERIAL ARAMAIC LETTER ZAYIN;Lo;0;R;;;;;N;;;;;
+10847;IMPERIAL ARAMAIC LETTER HETH;Lo;0;R;;;;;N;;;;;
+10848;IMPERIAL ARAMAIC LETTER TETH;Lo;0;R;;;;;N;;;;;
+10849;IMPERIAL ARAMAIC LETTER YODH;Lo;0;R;;;;;N;;;;;
+1084A;IMPERIAL ARAMAIC LETTER KAPH;Lo;0;R;;;;;N;;;;;
+1084B;IMPERIAL ARAMAIC LETTER LAMEDH;Lo;0;R;;;;;N;;;;;
+1084C;IMPERIAL ARAMAIC LETTER MEM;Lo;0;R;;;;;N;;;;;
+1084D;IMPERIAL ARAMAIC LETTER NUN;Lo;0;R;;;;;N;;;;;
+1084E;IMPERIAL ARAMAIC LETTER SAMEKH;Lo;0;R;;;;;N;;;;;
+1084F;IMPERIAL ARAMAIC LETTER AYIN;Lo;0;R;;;;;N;;;;;
+10850;IMPERIAL ARAMAIC LETTER PE;Lo;0;R;;;;;N;;;;;
+10851;IMPERIAL ARAMAIC LETTER SADHE;Lo;0;R;;;;;N;;;;;
+10852;IMPERIAL ARAMAIC LETTER QOPH;Lo;0;R;;;;;N;;;;;
+10853;IMPERIAL ARAMAIC LETTER RESH;Lo;0;R;;;;;N;;;;;
+10854;IMPERIAL ARAMAIC LETTER SHIN;Lo;0;R;;;;;N;;;;;
+10855;IMPERIAL ARAMAIC LETTER TAW;Lo;0;R;;;;;N;;;;;
+10857;IMPERIAL ARAMAIC SECTION SIGN;Po;0;R;;;;;N;;;;;
+10858;IMPERIAL ARAMAIC NUMBER ONE;No;0;R;;;;1;N;;;;;
+10859;IMPERIAL ARAMAIC NUMBER TWO;No;0;R;;;;2;N;;;;;
+1085A;IMPERIAL ARAMAIC NUMBER THREE;No;0;R;;;;3;N;;;;;
+1085B;IMPERIAL ARAMAIC NUMBER TEN;No;0;R;;;;10;N;;;;;
+1085C;IMPERIAL ARAMAIC NUMBER TWENTY;No;0;R;;;;20;N;;;;;
+1085D;IMPERIAL ARAMAIC NUMBER ONE HUNDRED;No;0;R;;;;100;N;;;;;
+1085E;IMPERIAL ARAMAIC NUMBER ONE THOUSAND;No;0;R;;;;1000;N;;;;;
+1085F;IMPERIAL ARAMAIC NUMBER TEN THOUSAND;No;0;R;;;;10000;N;;;;;
+10900;PHOENICIAN LETTER ALF;Lo;0;R;;;;;N;;;;;
+10901;PHOENICIAN LETTER BET;Lo;0;R;;;;;N;;;;;
+10902;PHOENICIAN LETTER GAML;Lo;0;R;;;;;N;;;;;
+10903;PHOENICIAN LETTER DELT;Lo;0;R;;;;;N;;;;;
+10904;PHOENICIAN LETTER HE;Lo;0;R;;;;;N;;;;;
+10905;PHOENICIAN LETTER WAU;Lo;0;R;;;;;N;;;;;
+10906;PHOENICIAN LETTER ZAI;Lo;0;R;;;;;N;;;;;
+10907;PHOENICIAN LETTER HET;Lo;0;R;;;;;N;;;;;
+10908;PHOENICIAN LETTER TET;Lo;0;R;;;;;N;;;;;
+10909;PHOENICIAN LETTER YOD;Lo;0;R;;;;;N;;;;;
+1090A;PHOENICIAN LETTER KAF;Lo;0;R;;;;;N;;;;;
+1090B;PHOENICIAN LETTER LAMD;Lo;0;R;;;;;N;;;;;
+1090C;PHOENICIAN LETTER MEM;Lo;0;R;;;;;N;;;;;
+1090D;PHOENICIAN LETTER NUN;Lo;0;R;;;;;N;;;;;
+1090E;PHOENICIAN LETTER SEMK;Lo;0;R;;;;;N;;;;;
+1090F;PHOENICIAN LETTER AIN;Lo;0;R;;;;;N;;;;;
+10910;PHOENICIAN LETTER PE;Lo;0;R;;;;;N;;;;;
+10911;PHOENICIAN LETTER SADE;Lo;0;R;;;;;N;;;;;
+10912;PHOENICIAN LETTER QOF;Lo;0;R;;;;;N;;;;;
+10913;PHOENICIAN LETTER ROSH;Lo;0;R;;;;;N;;;;;
+10914;PHOENICIAN LETTER SHIN;Lo;0;R;;;;;N;;;;;
+10915;PHOENICIAN LETTER TAU;Lo;0;R;;;;;N;;;;;
+10916;PHOENICIAN NUMBER ONE;No;0;R;;;;1;N;;;;;
+10917;PHOENICIAN NUMBER TEN;No;0;R;;;;10;N;;;;;
+10918;PHOENICIAN NUMBER TWENTY;No;0;R;;;;20;N;;;;;
+10919;PHOENICIAN NUMBER ONE HUNDRED;No;0;R;;;;100;N;;;;;
+1091A;PHOENICIAN NUMBER TWO;No;0;R;;;;2;N;;;;;
+1091B;PHOENICIAN NUMBER THREE;No;0;R;;;;3;N;;;;;
+1091F;PHOENICIAN WORD SEPARATOR;Po;0;ON;;;;;N;;;;;
+10920;LYDIAN LETTER A;Lo;0;R;;;;;N;;;;;
+10921;LYDIAN LETTER B;Lo;0;R;;;;;N;;;;;
+10922;LYDIAN LETTER G;Lo;0;R;;;;;N;;;;;
+10923;LYDIAN LETTER D;Lo;0;R;;;;;N;;;;;
+10924;LYDIAN LETTER E;Lo;0;R;;;;;N;;;;;
+10925;LYDIAN LETTER V;Lo;0;R;;;;;N;;;;;
+10926;LYDIAN LETTER I;Lo;0;R;;;;;N;;;;;
+10927;LYDIAN LETTER Y;Lo;0;R;;;;;N;;;;;
+10928;LYDIAN LETTER K;Lo;0;R;;;;;N;;;;;
+10929;LYDIAN LETTER L;Lo;0;R;;;;;N;;;;;
+1092A;LYDIAN LETTER M;Lo;0;R;;;;;N;;;;;
+1092B;LYDIAN LETTER N;Lo;0;R;;;;;N;;;;;
+1092C;LYDIAN LETTER O;Lo;0;R;;;;;N;;;;;
+1092D;LYDIAN LETTER R;Lo;0;R;;;;;N;;;;;
+1092E;LYDIAN LETTER SS;Lo;0;R;;;;;N;;;;;
+1092F;LYDIAN LETTER T;Lo;0;R;;;;;N;;;;;
+10930;LYDIAN LETTER U;Lo;0;R;;;;;N;;;;;
+10931;LYDIAN LETTER F;Lo;0;R;;;;;N;;;;;
+10932;LYDIAN LETTER Q;Lo;0;R;;;;;N;;;;;
+10933;LYDIAN LETTER S;Lo;0;R;;;;;N;;;;;
+10934;LYDIAN LETTER TT;Lo;0;R;;;;;N;;;;;
+10935;LYDIAN LETTER AN;Lo;0;R;;;;;N;;;;;
+10936;LYDIAN LETTER EN;Lo;0;R;;;;;N;;;;;
+10937;LYDIAN LETTER LY;Lo;0;R;;;;;N;;;;;
+10938;LYDIAN LETTER NN;Lo;0;R;;;;;N;;;;;
+10939;LYDIAN LETTER C;Lo;0;R;;;;;N;;;;;
+1093F;LYDIAN TRIANGULAR MARK;Po;0;R;;;;;N;;;;;
+10980;MEROITIC HIEROGLYPHIC LETTER A;Lo;0;R;;;;;N;;;;;
+10981;MEROITIC HIEROGLYPHIC LETTER E;Lo;0;R;;;;;N;;;;;
+10982;MEROITIC HIEROGLYPHIC LETTER I;Lo;0;R;;;;;N;;;;;
+10983;MEROITIC HIEROGLYPHIC LETTER O;Lo;0;R;;;;;N;;;;;
+10984;MEROITIC HIEROGLYPHIC LETTER YA;Lo;0;R;;;;;N;;;;;
+10985;MEROITIC HIEROGLYPHIC LETTER WA;Lo;0;R;;;;;N;;;;;
+10986;MEROITIC HIEROGLYPHIC LETTER BA;Lo;0;R;;;;;N;;;;;
+10987;MEROITIC HIEROGLYPHIC LETTER BA-2;Lo;0;R;;;;;N;;;;;
+10988;MEROITIC HIEROGLYPHIC LETTER PA;Lo;0;R;;;;;N;;;;;
+10989;MEROITIC HIEROGLYPHIC LETTER MA;Lo;0;R;;;;;N;;;;;
+1098A;MEROITIC HIEROGLYPHIC LETTER NA;Lo;0;R;;;;;N;;;;;
+1098B;MEROITIC HIEROGLYPHIC LETTER NA-2;Lo;0;R;;;;;N;;;;;
+1098C;MEROITIC HIEROGLYPHIC LETTER NE;Lo;0;R;;;;;N;;;;;
+1098D;MEROITIC HIEROGLYPHIC LETTER NE-2;Lo;0;R;;;;;N;;;;;
+1098E;MEROITIC HIEROGLYPHIC LETTER RA;Lo;0;R;;;;;N;;;;;
+1098F;MEROITIC HIEROGLYPHIC LETTER RA-2;Lo;0;R;;;;;N;;;;;
+10990;MEROITIC HIEROGLYPHIC LETTER LA;Lo;0;R;;;;;N;;;;;
+10991;MEROITIC HIEROGLYPHIC LETTER KHA;Lo;0;R;;;;;N;;;;;
+10992;MEROITIC HIEROGLYPHIC LETTER HHA;Lo;0;R;;;;;N;;;;;
+10993;MEROITIC HIEROGLYPHIC LETTER SA;Lo;0;R;;;;;N;;;;;
+10994;MEROITIC HIEROGLYPHIC LETTER SA-2;Lo;0;R;;;;;N;;;;;
+10995;MEROITIC HIEROGLYPHIC LETTER SE;Lo;0;R;;;;;N;;;;;
+10996;MEROITIC HIEROGLYPHIC LETTER KA;Lo;0;R;;;;;N;;;;;
+10997;MEROITIC HIEROGLYPHIC LETTER QA;Lo;0;R;;;;;N;;;;;
+10998;MEROITIC HIEROGLYPHIC LETTER TA;Lo;0;R;;;;;N;;;;;
+10999;MEROITIC HIEROGLYPHIC LETTER TA-2;Lo;0;R;;;;;N;;;;;
+1099A;MEROITIC HIEROGLYPHIC LETTER TE;Lo;0;R;;;;;N;;;;;
+1099B;MEROITIC HIEROGLYPHIC LETTER TE-2;Lo;0;R;;;;;N;;;;;
+1099C;MEROITIC HIEROGLYPHIC LETTER TO;Lo;0;R;;;;;N;;;;;
+1099D;MEROITIC HIEROGLYPHIC LETTER DA;Lo;0;R;;;;;N;;;;;
+1099E;MEROITIC HIEROGLYPHIC SYMBOL VIDJ;Lo;0;R;;;;;N;;;;;
+1099F;MEROITIC HIEROGLYPHIC SYMBOL VIDJ-2;Lo;0;R;;;;;N;;;;;
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+109A2;MEROITIC CURSIVE LETTER I;Lo;0;R;;;;;N;;;;;
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+109A4;MEROITIC CURSIVE LETTER YA;Lo;0;R;;;;;N;;;;;
+109A5;MEROITIC CURSIVE LETTER WA;Lo;0;R;;;;;N;;;;;
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+109A7;MEROITIC CURSIVE LETTER PA;Lo;0;R;;;;;N;;;;;
+109A8;MEROITIC CURSIVE LETTER MA;Lo;0;R;;;;;N;;;;;
+109A9;MEROITIC CURSIVE LETTER NA;Lo;0;R;;;;;N;;;;;
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+109AB;MEROITIC CURSIVE LETTER RA;Lo;0;R;;;;;N;;;;;
+109AC;MEROITIC CURSIVE LETTER LA;Lo;0;R;;;;;N;;;;;
+109AD;MEROITIC CURSIVE LETTER KHA;Lo;0;R;;;;;N;;;;;
+109AE;MEROITIC CURSIVE LETTER HHA;Lo;0;R;;;;;N;;;;;
+109AF;MEROITIC CURSIVE LETTER SA;Lo;0;R;;;;;N;;;;;
+109B0;MEROITIC CURSIVE LETTER ARCHAIC SA;Lo;0;R;;;;;N;;;;;
+109B1;MEROITIC CURSIVE LETTER SE;Lo;0;R;;;;;N;;;;;
+109B2;MEROITIC CURSIVE LETTER KA;Lo;0;R;;;;;N;;;;;
+109B3;MEROITIC CURSIVE LETTER QA;Lo;0;R;;;;;N;;;;;
+109B4;MEROITIC CURSIVE LETTER TA;Lo;0;R;;;;;N;;;;;
+109B5;MEROITIC CURSIVE LETTER TE;Lo;0;R;;;;;N;;;;;
+109B6;MEROITIC CURSIVE LETTER TO;Lo;0;R;;;;;N;;;;;
+109B7;MEROITIC CURSIVE LETTER DA;Lo;0;R;;;;;N;;;;;
+109BE;MEROITIC CURSIVE LOGOGRAM RMT;Lo;0;R;;;;;N;;;;;
+109BF;MEROITIC CURSIVE LOGOGRAM IMN;Lo;0;R;;;;;N;;;;;
+10A00;KHAROSHTHI LETTER A;Lo;0;R;;;;;N;;;;;
+10A01;KHAROSHTHI VOWEL SIGN I;Mn;0;NSM;;;;;N;;;;;
+10A02;KHAROSHTHI VOWEL SIGN U;Mn;0;NSM;;;;;N;;;;;
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+10A06;KHAROSHTHI VOWEL SIGN O;Mn;0;NSM;;;;;N;;;;;
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+10A0D;KHAROSHTHI SIGN DOUBLE RING BELOW;Mn;220;NSM;;;;;N;;;;;
+10A0E;KHAROSHTHI SIGN ANUSVARA;Mn;0;NSM;;;;;N;;;;;
+10A0F;KHAROSHTHI SIGN VISARGA;Mn;230;NSM;;;;;N;;;;;
+10A10;KHAROSHTHI LETTER KA;Lo;0;R;;;;;N;;;;;
+10A11;KHAROSHTHI LETTER KHA;Lo;0;R;;;;;N;;;;;
+10A12;KHAROSHTHI LETTER GA;Lo;0;R;;;;;N;;;;;
+10A13;KHAROSHTHI LETTER GHA;Lo;0;R;;;;;N;;;;;
+10A15;KHAROSHTHI LETTER CA;Lo;0;R;;;;;N;;;;;
+10A16;KHAROSHTHI LETTER CHA;Lo;0;R;;;;;N;;;;;
+10A17;KHAROSHTHI LETTER JA;Lo;0;R;;;;;N;;;;;
+10A19;KHAROSHTHI LETTER NYA;Lo;0;R;;;;;N;;;;;
+10A1A;KHAROSHTHI LETTER TTA;Lo;0;R;;;;;N;;;;;
+10A1B;KHAROSHTHI LETTER TTHA;Lo;0;R;;;;;N;;;;;
+10A1C;KHAROSHTHI LETTER DDA;Lo;0;R;;;;;N;;;;;
+10A1D;KHAROSHTHI LETTER DDHA;Lo;0;R;;;;;N;;;;;
+10A1E;KHAROSHTHI LETTER NNA;Lo;0;R;;;;;N;;;;;
+10A1F;KHAROSHTHI LETTER TA;Lo;0;R;;;;;N;;;;;
+10A20;KHAROSHTHI LETTER THA;Lo;0;R;;;;;N;;;;;
+10A21;KHAROSHTHI LETTER DA;Lo;0;R;;;;;N;;;;;
+10A22;KHAROSHTHI LETTER DHA;Lo;0;R;;;;;N;;;;;
+10A23;KHAROSHTHI LETTER NA;Lo;0;R;;;;;N;;;;;
+10A24;KHAROSHTHI LETTER PA;Lo;0;R;;;;;N;;;;;
+10A25;KHAROSHTHI LETTER PHA;Lo;0;R;;;;;N;;;;;
+10A26;KHAROSHTHI LETTER BA;Lo;0;R;;;;;N;;;;;
+10A27;KHAROSHTHI LETTER BHA;Lo;0;R;;;;;N;;;;;
+10A28;KHAROSHTHI LETTER MA;Lo;0;R;;;;;N;;;;;
+10A29;KHAROSHTHI LETTER YA;Lo;0;R;;;;;N;;;;;
+10A2A;KHAROSHTHI LETTER RA;Lo;0;R;;;;;N;;;;;
+10A2B;KHAROSHTHI LETTER LA;Lo;0;R;;;;;N;;;;;
+10A2C;KHAROSHTHI LETTER VA;Lo;0;R;;;;;N;;;;;
+10A2D;KHAROSHTHI LETTER SHA;Lo;0;R;;;;;N;;;;;
+10A2E;KHAROSHTHI LETTER SSA;Lo;0;R;;;;;N;;;;;
+10A2F;KHAROSHTHI LETTER SA;Lo;0;R;;;;;N;;;;;
+10A30;KHAROSHTHI LETTER ZA;Lo;0;R;;;;;N;;;;;
+10A31;KHAROSHTHI LETTER HA;Lo;0;R;;;;;N;;;;;
+10A32;KHAROSHTHI LETTER KKA;Lo;0;R;;;;;N;;;;;
+10A33;KHAROSHTHI LETTER TTTHA;Lo;0;R;;;;;N;;;;;
+10A38;KHAROSHTHI SIGN BAR ABOVE;Mn;230;NSM;;;;;N;;;;;
+10A39;KHAROSHTHI SIGN CAUDA;Mn;1;NSM;;;;;N;;;;;
+10A3A;KHAROSHTHI SIGN DOT BELOW;Mn;220;NSM;;;;;N;;;;;
+10A3F;KHAROSHTHI VIRAMA;Mn;9;NSM;;;;;N;;;;;
+10A40;KHAROSHTHI DIGIT ONE;No;0;R;;;1;1;N;;;;;
+10A41;KHAROSHTHI DIGIT TWO;No;0;R;;;2;2;N;;;;;
+10A42;KHAROSHTHI DIGIT THREE;No;0;R;;;3;3;N;;;;;
+10A43;KHAROSHTHI DIGIT FOUR;No;0;R;;;4;4;N;;;;;
+10A44;KHAROSHTHI NUMBER TEN;No;0;R;;;;10;N;;;;;
+10A45;KHAROSHTHI NUMBER TWENTY;No;0;R;;;;20;N;;;;;
+10A46;KHAROSHTHI NUMBER ONE HUNDRED;No;0;R;;;;100;N;;;;;
+10A47;KHAROSHTHI NUMBER ONE THOUSAND;No;0;R;;;;1000;N;;;;;
+10A50;KHAROSHTHI PUNCTUATION DOT;Po;0;R;;;;;N;;;;;
+10A51;KHAROSHTHI PUNCTUATION SMALL CIRCLE;Po;0;R;;;;;N;;;;;
+10A52;KHAROSHTHI PUNCTUATION CIRCLE;Po;0;R;;;;;N;;;;;
+10A53;KHAROSHTHI PUNCTUATION CRESCENT BAR;Po;0;R;;;;;N;;;;;
+10A54;KHAROSHTHI PUNCTUATION MANGALAM;Po;0;R;;;;;N;;;;;
+10A55;KHAROSHTHI PUNCTUATION LOTUS;Po;0;R;;;;;N;;;;;
+10A56;KHAROSHTHI PUNCTUATION DANDA;Po;0;R;;;;;N;;;;;
+10A57;KHAROSHTHI PUNCTUATION DOUBLE DANDA;Po;0;R;;;;;N;;;;;
+10A58;KHAROSHTHI PUNCTUATION LINES;Po;0;R;;;;;N;;;;;
+10A60;OLD SOUTH ARABIAN LETTER HE;Lo;0;R;;;;;N;;;;;
+10A61;OLD SOUTH ARABIAN LETTER LAMEDH;Lo;0;R;;;;;N;;;;;
+10A62;OLD SOUTH ARABIAN LETTER HETH;Lo;0;R;;;;;N;;;;;
+10A63;OLD SOUTH ARABIAN LETTER MEM;Lo;0;R;;;;;N;;;;;
+10A64;OLD SOUTH ARABIAN LETTER QOPH;Lo;0;R;;;;;N;;;;;
+10A65;OLD SOUTH ARABIAN LETTER WAW;Lo;0;R;;;;;N;;;;;
+10A66;OLD SOUTH ARABIAN LETTER SHIN;Lo;0;R;;;;;N;;;;;
+10A67;OLD SOUTH ARABIAN LETTER RESH;Lo;0;R;;;;;N;;;;;
+10A68;OLD SOUTH ARABIAN LETTER BETH;Lo;0;R;;;;;N;;;;;
+10A69;OLD SOUTH ARABIAN LETTER TAW;Lo;0;R;;;;;N;;;;;
+10A6A;OLD SOUTH ARABIAN LETTER SAT;Lo;0;R;;;;;N;;;;;
+10A6B;OLD SOUTH ARABIAN LETTER KAPH;Lo;0;R;;;;;N;;;;;
+10A6C;OLD SOUTH ARABIAN LETTER NUN;Lo;0;R;;;;;N;;;;;
+10A6D;OLD SOUTH ARABIAN LETTER KHETH;Lo;0;R;;;;;N;;;;;
+10A6E;OLD SOUTH ARABIAN LETTER SADHE;Lo;0;R;;;;;N;;;;;
+10A6F;OLD SOUTH ARABIAN LETTER SAMEKH;Lo;0;R;;;;;N;;;;;
+10A70;OLD SOUTH ARABIAN LETTER FE;Lo;0;R;;;;;N;;;;;
+10A71;OLD SOUTH ARABIAN LETTER ALEF;Lo;0;R;;;;;N;;;;;
+10A72;OLD SOUTH ARABIAN LETTER AYN;Lo;0;R;;;;;N;;;;;
+10A73;OLD SOUTH ARABIAN LETTER DHADHE;Lo;0;R;;;;;N;;;;;
+10A74;OLD SOUTH ARABIAN LETTER GIMEL;Lo;0;R;;;;;N;;;;;
+10A75;OLD SOUTH ARABIAN LETTER DALETH;Lo;0;R;;;;;N;;;;;
+10A76;OLD SOUTH ARABIAN LETTER GHAYN;Lo;0;R;;;;;N;;;;;
+10A77;OLD SOUTH ARABIAN LETTER TETH;Lo;0;R;;;;;N;;;;;
+10A78;OLD SOUTH ARABIAN LETTER ZAYN;Lo;0;R;;;;;N;;;;;
+10A79;OLD SOUTH ARABIAN LETTER DHALETH;Lo;0;R;;;;;N;;;;;
+10A7A;OLD SOUTH ARABIAN LETTER YODH;Lo;0;R;;;;;N;;;;;
+10A7B;OLD SOUTH ARABIAN LETTER THAW;Lo;0;R;;;;;N;;;;;
+10A7C;OLD SOUTH ARABIAN LETTER THETH;Lo;0;R;;;;;N;;;;;
+10A7D;OLD SOUTH ARABIAN NUMBER ONE;No;0;R;;;;1;N;;;;;
+10A7E;OLD SOUTH ARABIAN NUMBER FIFTY;No;0;R;;;;50;N;;;;;
+10A7F;OLD SOUTH ARABIAN NUMERIC INDICATOR;Po;0;R;;;;;N;;;;;
+10B00;AVESTAN LETTER A;Lo;0;R;;;;;N;;;;;
+10B01;AVESTAN LETTER AA;Lo;0;R;;;;;N;;;;;
+10B02;AVESTAN LETTER AO;Lo;0;R;;;;;N;;;;;
+10B03;AVESTAN LETTER AAO;Lo;0;R;;;;;N;;;;;
+10B04;AVESTAN LETTER AN;Lo;0;R;;;;;N;;;;;
+10B05;AVESTAN LETTER AAN;Lo;0;R;;;;;N;;;;;
+10B06;AVESTAN LETTER AE;Lo;0;R;;;;;N;;;;;
+10B07;AVESTAN LETTER AEE;Lo;0;R;;;;;N;;;;;
+10B08;AVESTAN LETTER E;Lo;0;R;;;;;N;;;;;
+10B09;AVESTAN LETTER EE;Lo;0;R;;;;;N;;;;;
+10B0A;AVESTAN LETTER O;Lo;0;R;;;;;N;;;;;
+10B0B;AVESTAN LETTER OO;Lo;0;R;;;;;N;;;;;
+10B0C;AVESTAN LETTER I;Lo;0;R;;;;;N;;;;;
+10B0D;AVESTAN LETTER II;Lo;0;R;;;;;N;;;;;
+10B0E;AVESTAN LETTER U;Lo;0;R;;;;;N;;;;;
+10B0F;AVESTAN LETTER UU;Lo;0;R;;;;;N;;;;;
+10B10;AVESTAN LETTER KE;Lo;0;R;;;;;N;;;;;
+10B11;AVESTAN LETTER XE;Lo;0;R;;;;;N;;;;;
+10B12;AVESTAN LETTER XYE;Lo;0;R;;;;;N;;;;;
+10B13;AVESTAN LETTER XVE;Lo;0;R;;;;;N;;;;;
+10B14;AVESTAN LETTER GE;Lo;0;R;;;;;N;;;;;
+10B15;AVESTAN LETTER GGE;Lo;0;R;;;;;N;;;;;
+10B16;AVESTAN LETTER GHE;Lo;0;R;;;;;N;;;;;
+10B17;AVESTAN LETTER CE;Lo;0;R;;;;;N;;;;;
+10B18;AVESTAN LETTER JE;Lo;0;R;;;;;N;;;;;
+10B19;AVESTAN LETTER TE;Lo;0;R;;;;;N;;;;;
+10B1A;AVESTAN LETTER THE;Lo;0;R;;;;;N;;;;;
+10B1B;AVESTAN LETTER DE;Lo;0;R;;;;;N;;;;;
+10B1C;AVESTAN LETTER DHE;Lo;0;R;;;;;N;;;;;
+10B1D;AVESTAN LETTER TTE;Lo;0;R;;;;;N;;;;;
+10B1E;AVESTAN LETTER PE;Lo;0;R;;;;;N;;;;;
+10B1F;AVESTAN LETTER FE;Lo;0;R;;;;;N;;;;;
+10B20;AVESTAN LETTER BE;Lo;0;R;;;;;N;;;;;
+10B21;AVESTAN LETTER BHE;Lo;0;R;;;;;N;;;;;
+10B22;AVESTAN LETTER NGE;Lo;0;R;;;;;N;;;;;
+10B23;AVESTAN LETTER NGYE;Lo;0;R;;;;;N;;;;;
+10B24;AVESTAN LETTER NGVE;Lo;0;R;;;;;N;;;;;
+10B25;AVESTAN LETTER NE;Lo;0;R;;;;;N;;;;;
+10B26;AVESTAN LETTER NYE;Lo;0;R;;;;;N;;;;;
+10B27;AVESTAN LETTER NNE;Lo;0;R;;;;;N;;;;;
+10B28;AVESTAN LETTER ME;Lo;0;R;;;;;N;;;;;
+10B29;AVESTAN LETTER HME;Lo;0;R;;;;;N;;;;;
+10B2A;AVESTAN LETTER YYE;Lo;0;R;;;;;N;;;;;
+10B2B;AVESTAN LETTER YE;Lo;0;R;;;;;N;;;;;
+10B2C;AVESTAN LETTER VE;Lo;0;R;;;;;N;;;;;
+10B2D;AVESTAN LETTER RE;Lo;0;R;;;;;N;;;;;
+10B2E;AVESTAN LETTER LE;Lo;0;R;;;;;N;;;;;
+10B2F;AVESTAN LETTER SE;Lo;0;R;;;;;N;;;;;
+10B30;AVESTAN LETTER ZE;Lo;0;R;;;;;N;;;;;
+10B31;AVESTAN LETTER SHE;Lo;0;R;;;;;N;;;;;
+10B32;AVESTAN LETTER ZHE;Lo;0;R;;;;;N;;;;;
+10B33;AVESTAN LETTER SHYE;Lo;0;R;;;;;N;;;;;
+10B34;AVESTAN LETTER SSHE;Lo;0;R;;;;;N;;;;;
+10B35;AVESTAN LETTER HE;Lo;0;R;;;;;N;;;;;
+10B39;AVESTAN ABBREVIATION MARK;Po;0;ON;;;;;N;;;;;
+10B3A;TINY TWO DOTS OVER ONE DOT PUNCTUATION;Po;0;ON;;;;;N;;;;;
+10B3B;SMALL TWO DOTS OVER ONE DOT PUNCTUATION;Po;0;ON;;;;;N;;;;;
+10B3C;LARGE TWO DOTS OVER ONE DOT PUNCTUATION;Po;0;ON;;;;;N;;;;;
+10B3D;LARGE ONE DOT OVER TWO DOTS PUNCTUATION;Po;0;ON;;;;;N;;;;;
+10B3E;LARGE TWO RINGS OVER ONE RING PUNCTUATION;Po;0;ON;;;;;N;;;;;
+10B3F;LARGE ONE RING OVER TWO RINGS PUNCTUATION;Po;0;ON;;;;;N;;;;;
+10B40;INSCRIPTIONAL PARTHIAN LETTER ALEPH;Lo;0;R;;;;;N;;;;;
+10B41;INSCRIPTIONAL PARTHIAN LETTER BETH;Lo;0;R;;;;;N;;;;;
+10B42;INSCRIPTIONAL PARTHIAN LETTER GIMEL;Lo;0;R;;;;;N;;;;;
+10B43;INSCRIPTIONAL PARTHIAN LETTER DALETH;Lo;0;R;;;;;N;;;;;
+10B44;INSCRIPTIONAL PARTHIAN LETTER HE;Lo;0;R;;;;;N;;;;;
+10B45;INSCRIPTIONAL PARTHIAN LETTER WAW;Lo;0;R;;;;;N;;;;;
+10B46;INSCRIPTIONAL PARTHIAN LETTER ZAYIN;Lo;0;R;;;;;N;;;;;
+10B47;INSCRIPTIONAL PARTHIAN LETTER HETH;Lo;0;R;;;;;N;;;;;
+10B48;INSCRIPTIONAL PARTHIAN LETTER TETH;Lo;0;R;;;;;N;;;;;
+10B49;INSCRIPTIONAL PARTHIAN LETTER YODH;Lo;0;R;;;;;N;;;;;
+10B4A;INSCRIPTIONAL PARTHIAN LETTER KAPH;Lo;0;R;;;;;N;;;;;
+10B4B;INSCRIPTIONAL PARTHIAN LETTER LAMEDH;Lo;0;R;;;;;N;;;;;
+10B4C;INSCRIPTIONAL PARTHIAN LETTER MEM;Lo;0;R;;;;;N;;;;;
+10B4D;INSCRIPTIONAL PARTHIAN LETTER NUN;Lo;0;R;;;;;N;;;;;
+10B4E;INSCRIPTIONAL PARTHIAN LETTER SAMEKH;Lo;0;R;;;;;N;;;;;
+10B4F;INSCRIPTIONAL PARTHIAN LETTER AYIN;Lo;0;R;;;;;N;;;;;
+10B50;INSCRIPTIONAL PARTHIAN LETTER PE;Lo;0;R;;;;;N;;;;;
+10B51;INSCRIPTIONAL PARTHIAN LETTER SADHE;Lo;0;R;;;;;N;;;;;
+10B52;INSCRIPTIONAL PARTHIAN LETTER QOPH;Lo;0;R;;;;;N;;;;;
+10B53;INSCRIPTIONAL PARTHIAN LETTER RESH;Lo;0;R;;;;;N;;;;;
+10B54;INSCRIPTIONAL PARTHIAN LETTER SHIN;Lo;0;R;;;;;N;;;;;
+10B55;INSCRIPTIONAL PARTHIAN LETTER TAW;Lo;0;R;;;;;N;;;;;
+10B58;INSCRIPTIONAL PARTHIAN NUMBER ONE;No;0;R;;;;1;N;;;;;
+10B59;INSCRIPTIONAL PARTHIAN NUMBER TWO;No;0;R;;;;2;N;;;;;
+10B5A;INSCRIPTIONAL PARTHIAN NUMBER THREE;No;0;R;;;;3;N;;;;;
+10B5B;INSCRIPTIONAL PARTHIAN NUMBER FOUR;No;0;R;;;;4;N;;;;;
+10B5C;INSCRIPTIONAL PARTHIAN NUMBER TEN;No;0;R;;;;10;N;;;;;
+10B5D;INSCRIPTIONAL PARTHIAN NUMBER TWENTY;No;0;R;;;;20;N;;;;;
+10B5E;INSCRIPTIONAL PARTHIAN NUMBER ONE HUNDRED;No;0;R;;;;100;N;;;;;
+10B5F;INSCRIPTIONAL PARTHIAN NUMBER ONE THOUSAND;No;0;R;;;;1000;N;;;;;
+10B60;INSCRIPTIONAL PAHLAVI LETTER ALEPH;Lo;0;R;;;;;N;;;;;
+10B61;INSCRIPTIONAL PAHLAVI LETTER BETH;Lo;0;R;;;;;N;;;;;
+10B62;INSCRIPTIONAL PAHLAVI LETTER GIMEL;Lo;0;R;;;;;N;;;;;
+10B63;INSCRIPTIONAL PAHLAVI LETTER DALETH;Lo;0;R;;;;;N;;;;;
+10B64;INSCRIPTIONAL PAHLAVI LETTER HE;Lo;0;R;;;;;N;;;;;
+10B65;INSCRIPTIONAL PAHLAVI LETTER WAW-AYIN-RESH;Lo;0;R;;;;;N;;;;;
+10B66;INSCRIPTIONAL PAHLAVI LETTER ZAYIN;Lo;0;R;;;;;N;;;;;
+10B67;INSCRIPTIONAL PAHLAVI LETTER HETH;Lo;0;R;;;;;N;;;;;
+10B68;INSCRIPTIONAL PAHLAVI LETTER TETH;Lo;0;R;;;;;N;;;;;
+10B69;INSCRIPTIONAL PAHLAVI LETTER YODH;Lo;0;R;;;;;N;;;;;
+10B6A;INSCRIPTIONAL PAHLAVI LETTER KAPH;Lo;0;R;;;;;N;;;;;
+10B6B;INSCRIPTIONAL PAHLAVI LETTER LAMEDH;Lo;0;R;;;;;N;;;;;
+10B6C;INSCRIPTIONAL PAHLAVI LETTER MEM-QOPH;Lo;0;R;;;;;N;;;;;
+10B6D;INSCRIPTIONAL PAHLAVI LETTER NUN;Lo;0;R;;;;;N;;;;;
+10B6E;INSCRIPTIONAL PAHLAVI LETTER SAMEKH;Lo;0;R;;;;;N;;;;;
+10B6F;INSCRIPTIONAL PAHLAVI LETTER PE;Lo;0;R;;;;;N;;;;;
+10B70;INSCRIPTIONAL PAHLAVI LETTER SADHE;Lo;0;R;;;;;N;;;;;
+10B71;INSCRIPTIONAL PAHLAVI LETTER SHIN;Lo;0;R;;;;;N;;;;;
+10B72;INSCRIPTIONAL PAHLAVI LETTER TAW;Lo;0;R;;;;;N;;;;;
+10B78;INSCRIPTIONAL PAHLAVI NUMBER ONE;No;0;R;;;;1;N;;;;;
+10B79;INSCRIPTIONAL PAHLAVI NUMBER TWO;No;0;R;;;;2;N;;;;;
+10B7A;INSCRIPTIONAL PAHLAVI NUMBER THREE;No;0;R;;;;3;N;;;;;
+10B7B;INSCRIPTIONAL PAHLAVI NUMBER FOUR;No;0;R;;;;4;N;;;;;
+10B7C;INSCRIPTIONAL PAHLAVI NUMBER TEN;No;0;R;;;;10;N;;;;;
+10B7D;INSCRIPTIONAL PAHLAVI NUMBER TWENTY;No;0;R;;;;20;N;;;;;
+10B7E;INSCRIPTIONAL PAHLAVI NUMBER ONE HUNDRED;No;0;R;;;;100;N;;;;;
+10B7F;INSCRIPTIONAL PAHLAVI NUMBER ONE THOUSAND;No;0;R;;;;1000;N;;;;;
+10C00;OLD TURKIC LETTER ORKHON A;Lo;0;R;;;;;N;;;;;
+10C01;OLD TURKIC LETTER YENISEI A;Lo;0;R;;;;;N;;;;;
+10C02;OLD TURKIC LETTER YENISEI AE;Lo;0;R;;;;;N;;;;;
+10C03;OLD TURKIC LETTER ORKHON I;Lo;0;R;;;;;N;;;;;
+10C04;OLD TURKIC LETTER YENISEI I;Lo;0;R;;;;;N;;;;;
+10C05;OLD TURKIC LETTER YENISEI E;Lo;0;R;;;;;N;;;;;
+10C06;OLD TURKIC LETTER ORKHON O;Lo;0;R;;;;;N;;;;;
+10C07;OLD TURKIC LETTER ORKHON OE;Lo;0;R;;;;;N;;;;;
+10C08;OLD TURKIC LETTER YENISEI OE;Lo;0;R;;;;;N;;;;;
+10C09;OLD TURKIC LETTER ORKHON AB;Lo;0;R;;;;;N;;;;;
+10C0A;OLD TURKIC LETTER YENISEI AB;Lo;0;R;;;;;N;;;;;
+10C0B;OLD TURKIC LETTER ORKHON AEB;Lo;0;R;;;;;N;;;;;
+10C0C;OLD TURKIC LETTER YENISEI AEB;Lo;0;R;;;;;N;;;;;
+10C0D;OLD TURKIC LETTER ORKHON AG;Lo;0;R;;;;;N;;;;;
+10C0E;OLD TURKIC LETTER YENISEI AG;Lo;0;R;;;;;N;;;;;
+10C0F;OLD TURKIC LETTER ORKHON AEG;Lo;0;R;;;;;N;;;;;
+10C10;OLD TURKIC LETTER YENISEI AEG;Lo;0;R;;;;;N;;;;;
+10C11;OLD TURKIC LETTER ORKHON AD;Lo;0;R;;;;;N;;;;;
+10C12;OLD TURKIC LETTER YENISEI AD;Lo;0;R;;;;;N;;;;;
+10C13;OLD TURKIC LETTER ORKHON AED;Lo;0;R;;;;;N;;;;;
+10C14;OLD TURKIC LETTER ORKHON EZ;Lo;0;R;;;;;N;;;;;
+10C15;OLD TURKIC LETTER YENISEI EZ;Lo;0;R;;;;;N;;;;;
+10C16;OLD TURKIC LETTER ORKHON AY;Lo;0;R;;;;;N;;;;;
+10C17;OLD TURKIC LETTER YENISEI AY;Lo;0;R;;;;;N;;;;;
+10C18;OLD TURKIC LETTER ORKHON AEY;Lo;0;R;;;;;N;;;;;
+10C19;OLD TURKIC LETTER YENISEI AEY;Lo;0;R;;;;;N;;;;;
+10C1A;OLD TURKIC LETTER ORKHON AEK;Lo;0;R;;;;;N;;;;;
+10C1B;OLD TURKIC LETTER YENISEI AEK;Lo;0;R;;;;;N;;;;;
+10C1C;OLD TURKIC LETTER ORKHON OEK;Lo;0;R;;;;;N;;;;;
+10C1D;OLD TURKIC LETTER YENISEI OEK;Lo;0;R;;;;;N;;;;;
+10C1E;OLD TURKIC LETTER ORKHON AL;Lo;0;R;;;;;N;;;;;
+10C1F;OLD TURKIC LETTER YENISEI AL;Lo;0;R;;;;;N;;;;;
+10C20;OLD TURKIC LETTER ORKHON AEL;Lo;0;R;;;;;N;;;;;
+10C21;OLD TURKIC LETTER ORKHON ELT;Lo;0;R;;;;;N;;;;;
+10C22;OLD TURKIC LETTER ORKHON EM;Lo;0;R;;;;;N;;;;;
+10C23;OLD TURKIC LETTER ORKHON AN;Lo;0;R;;;;;N;;;;;
+10C24;OLD TURKIC LETTER ORKHON AEN;Lo;0;R;;;;;N;;;;;
+10C25;OLD TURKIC LETTER YENISEI AEN;Lo;0;R;;;;;N;;;;;
+10C26;OLD TURKIC LETTER ORKHON ENT;Lo;0;R;;;;;N;;;;;
+10C27;OLD TURKIC LETTER YENISEI ENT;Lo;0;R;;;;;N;;;;;
+10C28;OLD TURKIC LETTER ORKHON ENC;Lo;0;R;;;;;N;;;;;
+10C29;OLD TURKIC LETTER YENISEI ENC;Lo;0;R;;;;;N;;;;;
+10C2A;OLD TURKIC LETTER ORKHON ENY;Lo;0;R;;;;;N;;;;;
+10C2B;OLD TURKIC LETTER YENISEI ENY;Lo;0;R;;;;;N;;;;;
+10C2C;OLD TURKIC LETTER YENISEI ANG;Lo;0;R;;;;;N;;;;;
+10C2D;OLD TURKIC LETTER ORKHON ENG;Lo;0;R;;;;;N;;;;;
+10C2E;OLD TURKIC LETTER YENISEI AENG;Lo;0;R;;;;;N;;;;;
+10C2F;OLD TURKIC LETTER ORKHON EP;Lo;0;R;;;;;N;;;;;
+10C30;OLD TURKIC LETTER ORKHON OP;Lo;0;R;;;;;N;;;;;
+10C31;OLD TURKIC LETTER ORKHON IC;Lo;0;R;;;;;N;;;;;
+10C32;OLD TURKIC LETTER ORKHON EC;Lo;0;R;;;;;N;;;;;
+10C33;OLD TURKIC LETTER YENISEI EC;Lo;0;R;;;;;N;;;;;
+10C34;OLD TURKIC LETTER ORKHON AQ;Lo;0;R;;;;;N;;;;;
+10C35;OLD TURKIC LETTER YENISEI AQ;Lo;0;R;;;;;N;;;;;
+10C36;OLD TURKIC LETTER ORKHON IQ;Lo;0;R;;;;;N;;;;;
+10C37;OLD TURKIC LETTER YENISEI IQ;Lo;0;R;;;;;N;;;;;
+10C38;OLD TURKIC LETTER ORKHON OQ;Lo;0;R;;;;;N;;;;;
+10C39;OLD TURKIC LETTER YENISEI OQ;Lo;0;R;;;;;N;;;;;
+10C3A;OLD TURKIC LETTER ORKHON AR;Lo;0;R;;;;;N;;;;;
+10C3B;OLD TURKIC LETTER YENISEI AR;Lo;0;R;;;;;N;;;;;
+10C3C;OLD TURKIC LETTER ORKHON AER;Lo;0;R;;;;;N;;;;;
+10C3D;OLD TURKIC LETTER ORKHON AS;Lo;0;R;;;;;N;;;;;
+10C3E;OLD TURKIC LETTER ORKHON AES;Lo;0;R;;;;;N;;;;;
+10C3F;OLD TURKIC LETTER ORKHON ASH;Lo;0;R;;;;;N;;;;;
+10C40;OLD TURKIC LETTER YENISEI ASH;Lo;0;R;;;;;N;;;;;
+10C41;OLD TURKIC LETTER ORKHON ESH;Lo;0;R;;;;;N;;;;;
+10C42;OLD TURKIC LETTER YENISEI ESH;Lo;0;R;;;;;N;;;;;
+10C43;OLD TURKIC LETTER ORKHON AT;Lo;0;R;;;;;N;;;;;
+10C44;OLD TURKIC LETTER YENISEI AT;Lo;0;R;;;;;N;;;;;
+10C45;OLD TURKIC LETTER ORKHON AET;Lo;0;R;;;;;N;;;;;
+10C46;OLD TURKIC LETTER YENISEI AET;Lo;0;R;;;;;N;;;;;
+10C47;OLD TURKIC LETTER ORKHON OT;Lo;0;R;;;;;N;;;;;
+10C48;OLD TURKIC LETTER ORKHON BASH;Lo;0;R;;;;;N;;;;;
+10E60;RUMI DIGIT ONE;No;0;AN;;;1;1;N;;;;;
+10E61;RUMI DIGIT TWO;No;0;AN;;;2;2;N;;;;;
+10E62;RUMI DIGIT THREE;No;0;AN;;;3;3;N;;;;;
+10E63;RUMI DIGIT FOUR;No;0;AN;;;4;4;N;;;;;
+10E64;RUMI DIGIT FIVE;No;0;AN;;;5;5;N;;;;;
+10E65;RUMI DIGIT SIX;No;0;AN;;;6;6;N;;;;;
+10E66;RUMI DIGIT SEVEN;No;0;AN;;;7;7;N;;;;;
+10E67;RUMI DIGIT EIGHT;No;0;AN;;;8;8;N;;;;;
+10E68;RUMI DIGIT NINE;No;0;AN;;;9;9;N;;;;;
+10E69;RUMI NUMBER TEN;No;0;AN;;;;10;N;;;;;
+10E6A;RUMI NUMBER TWENTY;No;0;AN;;;;20;N;;;;;
+10E6B;RUMI NUMBER THIRTY;No;0;AN;;;;30;N;;;;;
+10E6C;RUMI NUMBER FORTY;No;0;AN;;;;40;N;;;;;
+10E6D;RUMI NUMBER FIFTY;No;0;AN;;;;50;N;;;;;
+10E6E;RUMI NUMBER SIXTY;No;0;AN;;;;60;N;;;;;
+10E6F;RUMI NUMBER SEVENTY;No;0;AN;;;;70;N;;;;;
+10E70;RUMI NUMBER EIGHTY;No;0;AN;;;;80;N;;;;;
+10E71;RUMI NUMBER NINETY;No;0;AN;;;;90;N;;;;;
+10E72;RUMI NUMBER ONE HUNDRED;No;0;AN;;;;100;N;;;;;
+10E73;RUMI NUMBER TWO HUNDRED;No;0;AN;;;;200;N;;;;;
+10E74;RUMI NUMBER THREE HUNDRED;No;0;AN;;;;300;N;;;;;
+10E75;RUMI NUMBER FOUR HUNDRED;No;0;AN;;;;400;N;;;;;
+10E76;RUMI NUMBER FIVE HUNDRED;No;0;AN;;;;500;N;;;;;
+10E77;RUMI NUMBER SIX HUNDRED;No;0;AN;;;;600;N;;;;;
+10E78;RUMI NUMBER SEVEN HUNDRED;No;0;AN;;;;700;N;;;;;
+10E79;RUMI NUMBER EIGHT HUNDRED;No;0;AN;;;;800;N;;;;;
+10E7A;RUMI NUMBER NINE HUNDRED;No;0;AN;;;;900;N;;;;;
+10E7B;RUMI FRACTION ONE HALF;No;0;AN;;;;1/2;N;;;;;
+10E7C;RUMI FRACTION ONE QUARTER;No;0;AN;;;;1/4;N;;;;;
+10E7D;RUMI FRACTION ONE THIRD;No;0;AN;;;;1/3;N;;;;;
+10E7E;RUMI FRACTION TWO THIRDS;No;0;AN;;;;2/3;N;;;;;
+11000;BRAHMI SIGN CANDRABINDU;Mc;0;L;;;;;N;;;;;
+11001;BRAHMI SIGN ANUSVARA;Mn;0;NSM;;;;;N;;;;;
+11002;BRAHMI SIGN VISARGA;Mc;0;L;;;;;N;;;;;
+11003;BRAHMI SIGN JIHVAMULIYA;Lo;0;L;;;;;N;;;;;
+11004;BRAHMI SIGN UPADHMANIYA;Lo;0;L;;;;;N;;;;;
+11005;BRAHMI LETTER A;Lo;0;L;;;;;N;;;;;
+11006;BRAHMI LETTER AA;Lo;0;L;;;;;N;;;;;
+11007;BRAHMI LETTER I;Lo;0;L;;;;;N;;;;;
+11008;BRAHMI LETTER II;Lo;0;L;;;;;N;;;;;
+11009;BRAHMI LETTER U;Lo;0;L;;;;;N;;;;;
+1100A;BRAHMI LETTER UU;Lo;0;L;;;;;N;;;;;
+1100B;BRAHMI LETTER VOCALIC R;Lo;0;L;;;;;N;;;;;
+1100C;BRAHMI LETTER VOCALIC RR;Lo;0;L;;;;;N;;;;;
+1100D;BRAHMI LETTER VOCALIC L;Lo;0;L;;;;;N;;;;;
+1100E;BRAHMI LETTER VOCALIC LL;Lo;0;L;;;;;N;;;;;
+1100F;BRAHMI LETTER E;Lo;0;L;;;;;N;;;;;
+11010;BRAHMI LETTER AI;Lo;0;L;;;;;N;;;;;
+11011;BRAHMI LETTER O;Lo;0;L;;;;;N;;;;;
+11012;BRAHMI LETTER AU;Lo;0;L;;;;;N;;;;;
+11013;BRAHMI LETTER KA;Lo;0;L;;;;;N;;;;;
+11014;BRAHMI LETTER KHA;Lo;0;L;;;;;N;;;;;
+11015;BRAHMI LETTER GA;Lo;0;L;;;;;N;;;;;
+11016;BRAHMI LETTER GHA;Lo;0;L;;;;;N;;;;;
+11017;BRAHMI LETTER NGA;Lo;0;L;;;;;N;;;;;
+11018;BRAHMI LETTER CA;Lo;0;L;;;;;N;;;;;
+11019;BRAHMI LETTER CHA;Lo;0;L;;;;;N;;;;;
+1101A;BRAHMI LETTER JA;Lo;0;L;;;;;N;;;;;
+1101B;BRAHMI LETTER JHA;Lo;0;L;;;;;N;;;;;
+1101C;BRAHMI LETTER NYA;Lo;0;L;;;;;N;;;;;
+1101D;BRAHMI LETTER TTA;Lo;0;L;;;;;N;;;;;
+1101E;BRAHMI LETTER TTHA;Lo;0;L;;;;;N;;;;;
+1101F;BRAHMI LETTER DDA;Lo;0;L;;;;;N;;;;;
+11020;BRAHMI LETTER DDHA;Lo;0;L;;;;;N;;;;;
+11021;BRAHMI LETTER NNA;Lo;0;L;;;;;N;;;;;
+11022;BRAHMI LETTER TA;Lo;0;L;;;;;N;;;;;
+11023;BRAHMI LETTER THA;Lo;0;L;;;;;N;;;;;
+11024;BRAHMI LETTER DA;Lo;0;L;;;;;N;;;;;
+11025;BRAHMI LETTER DHA;Lo;0;L;;;;;N;;;;;
+11026;BRAHMI LETTER NA;Lo;0;L;;;;;N;;;;;
+11027;BRAHMI LETTER PA;Lo;0;L;;;;;N;;;;;
+11028;BRAHMI LETTER PHA;Lo;0;L;;;;;N;;;;;
+11029;BRAHMI LETTER BA;Lo;0;L;;;;;N;;;;;
+1102A;BRAHMI LETTER BHA;Lo;0;L;;;;;N;;;;;
+1102B;BRAHMI LETTER MA;Lo;0;L;;;;;N;;;;;
+1102C;BRAHMI LETTER YA;Lo;0;L;;;;;N;;;;;
+1102D;BRAHMI LETTER RA;Lo;0;L;;;;;N;;;;;
+1102E;BRAHMI LETTER LA;Lo;0;L;;;;;N;;;;;
+1102F;BRAHMI LETTER VA;Lo;0;L;;;;;N;;;;;
+11030;BRAHMI LETTER SHA;Lo;0;L;;;;;N;;;;;
+11031;BRAHMI LETTER SSA;Lo;0;L;;;;;N;;;;;
+11032;BRAHMI LETTER SA;Lo;0;L;;;;;N;;;;;
+11033;BRAHMI LETTER HA;Lo;0;L;;;;;N;;;;;
+11034;BRAHMI LETTER LLA;Lo;0;L;;;;;N;;;;;
+11035;BRAHMI LETTER OLD TAMIL LLLA;Lo;0;L;;;;;N;;;;;
+11036;BRAHMI LETTER OLD TAMIL RRA;Lo;0;L;;;;;N;;;;;
+11037;BRAHMI LETTER OLD TAMIL NNNA;Lo;0;L;;;;;N;;;;;
+11038;BRAHMI VOWEL SIGN AA;Mn;0;NSM;;;;;N;;;;;
+11039;BRAHMI VOWEL SIGN BHATTIPROLU AA;Mn;0;NSM;;;;;N;;;;;
+1103A;BRAHMI VOWEL SIGN I;Mn;0;NSM;;;;;N;;;;;
+1103B;BRAHMI VOWEL SIGN II;Mn;0;NSM;;;;;N;;;;;
+1103C;BRAHMI VOWEL SIGN U;Mn;0;NSM;;;;;N;;;;;
+1103D;BRAHMI VOWEL SIGN UU;Mn;0;NSM;;;;;N;;;;;
+1103E;BRAHMI VOWEL SIGN VOCALIC R;Mn;0;NSM;;;;;N;;;;;
+1103F;BRAHMI VOWEL SIGN VOCALIC RR;Mn;0;NSM;;;;;N;;;;;
+11040;BRAHMI VOWEL SIGN VOCALIC L;Mn;0;NSM;;;;;N;;;;;
+11041;BRAHMI VOWEL SIGN VOCALIC LL;Mn;0;NSM;;;;;N;;;;;
+11042;BRAHMI VOWEL SIGN E;Mn;0;NSM;;;;;N;;;;;
+11043;BRAHMI VOWEL SIGN AI;Mn;0;NSM;;;;;N;;;;;
+11044;BRAHMI VOWEL SIGN O;Mn;0;NSM;;;;;N;;;;;
+11045;BRAHMI VOWEL SIGN AU;Mn;0;NSM;;;;;N;;;;;
+11046;BRAHMI VIRAMA;Mn;9;NSM;;;;;N;;;;;
+11047;BRAHMI DANDA;Po;0;L;;;;;N;;;;;
+11048;BRAHMI DOUBLE DANDA;Po;0;L;;;;;N;;;;;
+11049;BRAHMI PUNCTUATION DOT;Po;0;L;;;;;N;;;;;
+1104A;BRAHMI PUNCTUATION DOUBLE DOT;Po;0;L;;;;;N;;;;;
+1104B;BRAHMI PUNCTUATION LINE;Po;0;L;;;;;N;;;;;
+1104C;BRAHMI PUNCTUATION CRESCENT BAR;Po;0;L;;;;;N;;;;;
+1104D;BRAHMI PUNCTUATION LOTUS;Po;0;L;;;;;N;;;;;
+11052;BRAHMI NUMBER ONE;No;0;ON;;;1;1;N;;;;;
+11053;BRAHMI NUMBER TWO;No;0;ON;;;2;2;N;;;;;
+11054;BRAHMI NUMBER THREE;No;0;ON;;;3;3;N;;;;;
+11055;BRAHMI NUMBER FOUR;No;0;ON;;;4;4;N;;;;;
+11056;BRAHMI NUMBER FIVE;No;0;ON;;;5;5;N;;;;;
+11057;BRAHMI NUMBER SIX;No;0;ON;;;6;6;N;;;;;
+11058;BRAHMI NUMBER SEVEN;No;0;ON;;;7;7;N;;;;;
+11059;BRAHMI NUMBER EIGHT;No;0;ON;;;8;8;N;;;;;
+1105A;BRAHMI NUMBER NINE;No;0;ON;;;9;9;N;;;;;
+1105B;BRAHMI NUMBER TEN;No;0;ON;;;;10;N;;;;;
+1105C;BRAHMI NUMBER TWENTY;No;0;ON;;;;20;N;;;;;
+1105D;BRAHMI NUMBER THIRTY;No;0;ON;;;;30;N;;;;;
+1105E;BRAHMI NUMBER FORTY;No;0;ON;;;;40;N;;;;;
+1105F;BRAHMI NUMBER FIFTY;No;0;ON;;;;50;N;;;;;
+11060;BRAHMI NUMBER SIXTY;No;0;ON;;;;60;N;;;;;
+11061;BRAHMI NUMBER SEVENTY;No;0;ON;;;;70;N;;;;;
+11062;BRAHMI NUMBER EIGHTY;No;0;ON;;;;80;N;;;;;
+11063;BRAHMI NUMBER NINETY;No;0;ON;;;;90;N;;;;;
+11064;BRAHMI NUMBER ONE HUNDRED;No;0;ON;;;;100;N;;;;;
+11065;BRAHMI NUMBER ONE THOUSAND;No;0;ON;;;;1000;N;;;;;
+11066;BRAHMI DIGIT ZERO;Nd;0;L;;0;0;0;N;;;;;
+11067;BRAHMI DIGIT ONE;Nd;0;L;;1;1;1;N;;;;;
+11068;BRAHMI DIGIT TWO;Nd;0;L;;2;2;2;N;;;;;
+11069;BRAHMI DIGIT THREE;Nd;0;L;;3;3;3;N;;;;;
+1106A;BRAHMI DIGIT FOUR;Nd;0;L;;4;4;4;N;;;;;
+1106B;BRAHMI DIGIT FIVE;Nd;0;L;;5;5;5;N;;;;;
+1106C;BRAHMI DIGIT SIX;Nd;0;L;;6;6;6;N;;;;;
+1106D;BRAHMI DIGIT SEVEN;Nd;0;L;;7;7;7;N;;;;;
+1106E;BRAHMI DIGIT EIGHT;Nd;0;L;;8;8;8;N;;;;;
+1106F;BRAHMI DIGIT NINE;Nd;0;L;;9;9;9;N;;;;;
+11080;KAITHI SIGN CANDRABINDU;Mn;0;NSM;;;;;N;;;;;
+11081;KAITHI SIGN ANUSVARA;Mn;0;NSM;;;;;N;;;;;
+11082;KAITHI SIGN VISARGA;Mc;0;L;;;;;N;;;;;
+11083;KAITHI LETTER A;Lo;0;L;;;;;N;;;;;
+11084;KAITHI LETTER AA;Lo;0;L;;;;;N;;;;;
+11085;KAITHI LETTER I;Lo;0;L;;;;;N;;;;;
+11086;KAITHI LETTER II;Lo;0;L;;;;;N;;;;;
+11087;KAITHI LETTER U;Lo;0;L;;;;;N;;;;;
+11088;KAITHI LETTER UU;Lo;0;L;;;;;N;;;;;
+11089;KAITHI LETTER E;Lo;0;L;;;;;N;;;;;
+1108A;KAITHI LETTER AI;Lo;0;L;;;;;N;;;;;
+1108B;KAITHI LETTER O;Lo;0;L;;;;;N;;;;;
+1108C;KAITHI LETTER AU;Lo;0;L;;;;;N;;;;;
+1108D;KAITHI LETTER KA;Lo;0;L;;;;;N;;;;;
+1108E;KAITHI LETTER KHA;Lo;0;L;;;;;N;;;;;
+1108F;KAITHI LETTER GA;Lo;0;L;;;;;N;;;;;
+11090;KAITHI LETTER GHA;Lo;0;L;;;;;N;;;;;
+11091;KAITHI LETTER NGA;Lo;0;L;;;;;N;;;;;
+11092;KAITHI LETTER CA;Lo;0;L;;;;;N;;;;;
+11093;KAITHI LETTER CHA;Lo;0;L;;;;;N;;;;;
+11094;KAITHI LETTER JA;Lo;0;L;;;;;N;;;;;
+11095;KAITHI LETTER JHA;Lo;0;L;;;;;N;;;;;
+11096;KAITHI LETTER NYA;Lo;0;L;;;;;N;;;;;
+11097;KAITHI LETTER TTA;Lo;0;L;;;;;N;;;;;
+11098;KAITHI LETTER TTHA;Lo;0;L;;;;;N;;;;;
+11099;KAITHI LETTER DDA;Lo;0;L;;;;;N;;;;;
+1109A;KAITHI LETTER DDDHA;Lo;0;L;11099 110BA;;;;N;;;;;
+1109B;KAITHI LETTER DDHA;Lo;0;L;;;;;N;;;;;
+1109C;KAITHI LETTER RHA;Lo;0;L;1109B 110BA;;;;N;;;;;
+1109D;KAITHI LETTER NNA;Lo;0;L;;;;;N;;;;;
+1109E;KAITHI LETTER TA;Lo;0;L;;;;;N;;;;;
+1109F;KAITHI LETTER THA;Lo;0;L;;;;;N;;;;;
+110A0;KAITHI LETTER DA;Lo;0;L;;;;;N;;;;;
+110A1;KAITHI LETTER DHA;Lo;0;L;;;;;N;;;;;
+110A2;KAITHI LETTER NA;Lo;0;L;;;;;N;;;;;
+110A3;KAITHI LETTER PA;Lo;0;L;;;;;N;;;;;
+110A4;KAITHI LETTER PHA;Lo;0;L;;;;;N;;;;;
+110A5;KAITHI LETTER BA;Lo;0;L;;;;;N;;;;;
+110A6;KAITHI LETTER BHA;Lo;0;L;;;;;N;;;;;
+110A7;KAITHI LETTER MA;Lo;0;L;;;;;N;;;;;
+110A8;KAITHI LETTER YA;Lo;0;L;;;;;N;;;;;
+110A9;KAITHI LETTER RA;Lo;0;L;;;;;N;;;;;
+110AA;KAITHI LETTER LA;Lo;0;L;;;;;N;;;;;
+110AB;KAITHI LETTER VA;Lo;0;L;110A5 110BA;;;;N;;;;;
+110AC;KAITHI LETTER SHA;Lo;0;L;;;;;N;;;;;
+110AD;KAITHI LETTER SSA;Lo;0;L;;;;;N;;;;;
+110AE;KAITHI LETTER SA;Lo;0;L;;;;;N;;;;;
+110AF;KAITHI LETTER HA;Lo;0;L;;;;;N;;;;;
+110B0;KAITHI VOWEL SIGN AA;Mc;0;L;;;;;N;;;;;
+110B1;KAITHI VOWEL SIGN I;Mc;0;L;;;;;N;;;;;
+110B2;KAITHI VOWEL SIGN II;Mc;0;L;;;;;N;;;;;
+110B3;KAITHI VOWEL SIGN U;Mn;0;NSM;;;;;N;;;;;
+110B4;KAITHI VOWEL SIGN UU;Mn;0;NSM;;;;;N;;;;;
+110B5;KAITHI VOWEL SIGN E;Mn;0;NSM;;;;;N;;;;;
+110B6;KAITHI VOWEL SIGN AI;Mn;0;NSM;;;;;N;;;;;
+110B7;KAITHI VOWEL SIGN O;Mc;0;L;;;;;N;;;;;
+110B8;KAITHI VOWEL SIGN AU;Mc;0;L;;;;;N;;;;;
+110B9;KAITHI SIGN VIRAMA;Mn;9;NSM;;;;;N;;;;;
+110BA;KAITHI SIGN NUKTA;Mn;7;NSM;;;;;N;;;;;
+110BB;KAITHI ABBREVIATION SIGN;Po;0;L;;;;;N;;;;;
+110BC;KAITHI ENUMERATION SIGN;Po;0;L;;;;;N;;;;;
+110BD;KAITHI NUMBER SIGN;Cf;0;L;;;;;N;;;;;
+110BE;KAITHI SECTION MARK;Po;0;L;;;;;N;;;;;
+110BF;KAITHI DOUBLE SECTION MARK;Po;0;L;;;;;N;;;;;
+110C0;KAITHI DANDA;Po;0;L;;;;;N;;;;;
+110C1;KAITHI DOUBLE DANDA;Po;0;L;;;;;N;;;;;
+110D0;SORA SOMPENG LETTER SAH;Lo;0;L;;;;;N;;;;;
+110D1;SORA SOMPENG LETTER TAH;Lo;0;L;;;;;N;;;;;
+110D2;SORA SOMPENG LETTER BAH;Lo;0;L;;;;;N;;;;;
+110D3;SORA SOMPENG LETTER CAH;Lo;0;L;;;;;N;;;;;
+110D4;SORA SOMPENG LETTER DAH;Lo;0;L;;;;;N;;;;;
+110D5;SORA SOMPENG LETTER GAH;Lo;0;L;;;;;N;;;;;
+110D6;SORA SOMPENG LETTER MAH;Lo;0;L;;;;;N;;;;;
+110D7;SORA SOMPENG LETTER NGAH;Lo;0;L;;;;;N;;;;;
+110D8;SORA SOMPENG LETTER LAH;Lo;0;L;;;;;N;;;;;
+110D9;SORA SOMPENG LETTER NAH;Lo;0;L;;;;;N;;;;;
+110DA;SORA SOMPENG LETTER VAH;Lo;0;L;;;;;N;;;;;
+110DB;SORA SOMPENG LETTER PAH;Lo;0;L;;;;;N;;;;;
+110DC;SORA SOMPENG LETTER YAH;Lo;0;L;;;;;N;;;;;
+110DD;SORA SOMPENG LETTER RAH;Lo;0;L;;;;;N;;;;;
+110DE;SORA SOMPENG LETTER HAH;Lo;0;L;;;;;N;;;;;
+110DF;SORA SOMPENG LETTER KAH;Lo;0;L;;;;;N;;;;;
+110E0;SORA SOMPENG LETTER JAH;Lo;0;L;;;;;N;;;;;
+110E1;SORA SOMPENG LETTER NYAH;Lo;0;L;;;;;N;;;;;
+110E2;SORA SOMPENG LETTER AH;Lo;0;L;;;;;N;;;;;
+110E3;SORA SOMPENG LETTER EEH;Lo;0;L;;;;;N;;;;;
+110E4;SORA SOMPENG LETTER IH;Lo;0;L;;;;;N;;;;;
+110E5;SORA SOMPENG LETTER UH;Lo;0;L;;;;;N;;;;;
+110E6;SORA SOMPENG LETTER OH;Lo;0;L;;;;;N;;;;;
+110E7;SORA SOMPENG LETTER EH;Lo;0;L;;;;;N;;;;;
+110E8;SORA SOMPENG LETTER MAE;Lo;0;L;;;;;N;;;;;
+110F0;SORA SOMPENG DIGIT ZERO;Nd;0;L;;0;0;0;N;;;;;
+110F1;SORA SOMPENG DIGIT ONE;Nd;0;L;;1;1;1;N;;;;;
+110F2;SORA SOMPENG DIGIT TWO;Nd;0;L;;2;2;2;N;;;;;
+110F3;SORA SOMPENG DIGIT THREE;Nd;0;L;;3;3;3;N;;;;;
+110F4;SORA SOMPENG DIGIT FOUR;Nd;0;L;;4;4;4;N;;;;;
+110F5;SORA SOMPENG DIGIT FIVE;Nd;0;L;;5;5;5;N;;;;;
+110F6;SORA SOMPENG DIGIT SIX;Nd;0;L;;6;6;6;N;;;;;
+110F7;SORA SOMPENG DIGIT SEVEN;Nd;0;L;;7;7;7;N;;;;;
+110F8;SORA SOMPENG DIGIT EIGHT;Nd;0;L;;8;8;8;N;;;;;
+110F9;SORA SOMPENG DIGIT NINE;Nd;0;L;;9;9;9;N;;;;;
+11100;CHAKMA SIGN CANDRABINDU;Mn;230;NSM;;;;;N;;;;;
+11101;CHAKMA SIGN ANUSVARA;Mn;230;NSM;;;;;N;;;;;
+11102;CHAKMA SIGN VISARGA;Mn;230;NSM;;;;;N;;;;;
+11103;CHAKMA LETTER AA;Lo;0;L;;;;;N;;;;;
+11104;CHAKMA LETTER I;Lo;0;L;;;;;N;;;;;
+11105;CHAKMA LETTER U;Lo;0;L;;;;;N;;;;;
+11106;CHAKMA LETTER E;Lo;0;L;;;;;N;;;;;
+11107;CHAKMA LETTER KAA;Lo;0;L;;;;;N;;;;;
+11108;CHAKMA LETTER KHAA;Lo;0;L;;;;;N;;;;;
+11109;CHAKMA LETTER GAA;Lo;0;L;;;;;N;;;;;
+1110A;CHAKMA LETTER GHAA;Lo;0;L;;;;;N;;;;;
+1110B;CHAKMA LETTER NGAA;Lo;0;L;;;;;N;;;;;
+1110C;CHAKMA LETTER CAA;Lo;0;L;;;;;N;;;;;
+1110D;CHAKMA LETTER CHAA;Lo;0;L;;;;;N;;;;;
+1110E;CHAKMA LETTER JAA;Lo;0;L;;;;;N;;;;;
+1110F;CHAKMA LETTER JHAA;Lo;0;L;;;;;N;;;;;
+11110;CHAKMA LETTER NYAA;Lo;0;L;;;;;N;;;;;
+11111;CHAKMA LETTER TTAA;Lo;0;L;;;;;N;;;;;
+11112;CHAKMA LETTER TTHAA;Lo;0;L;;;;;N;;;;;
+11113;CHAKMA LETTER DDAA;Lo;0;L;;;;;N;;;;;
+11114;CHAKMA LETTER DDHAA;Lo;0;L;;;;;N;;;;;
+11115;CHAKMA LETTER NNAA;Lo;0;L;;;;;N;;;;;
+11116;CHAKMA LETTER TAA;Lo;0;L;;;;;N;;;;;
+11117;CHAKMA LETTER THAA;Lo;0;L;;;;;N;;;;;
+11118;CHAKMA LETTER DAA;Lo;0;L;;;;;N;;;;;
+11119;CHAKMA LETTER DHAA;Lo;0;L;;;;;N;;;;;
+1111A;CHAKMA LETTER NAA;Lo;0;L;;;;;N;;;;;
+1111B;CHAKMA LETTER PAA;Lo;0;L;;;;;N;;;;;
+1111C;CHAKMA LETTER PHAA;Lo;0;L;;;;;N;;;;;
+1111D;CHAKMA LETTER BAA;Lo;0;L;;;;;N;;;;;
+1111E;CHAKMA LETTER BHAA;Lo;0;L;;;;;N;;;;;
+1111F;CHAKMA LETTER MAA;Lo;0;L;;;;;N;;;;;
+11120;CHAKMA LETTER YYAA;Lo;0;L;;;;;N;;;;;
+11121;CHAKMA LETTER YAA;Lo;0;L;;;;;N;;;;;
+11122;CHAKMA LETTER RAA;Lo;0;L;;;;;N;;;;;
+11123;CHAKMA LETTER LAA;Lo;0;L;;;;;N;;;;;
+11124;CHAKMA LETTER WAA;Lo;0;L;;;;;N;;;;;
+11125;CHAKMA LETTER SAA;Lo;0;L;;;;;N;;;;;
+11126;CHAKMA LETTER HAA;Lo;0;L;;;;;N;;;;;
+11127;CHAKMA VOWEL SIGN A;Mn;0;NSM;;;;;N;;;;;
+11128;CHAKMA VOWEL SIGN I;Mn;0;NSM;;;;;N;;;;;
+11129;CHAKMA VOWEL SIGN II;Mn;0;NSM;;;;;N;;;;;
+1112A;CHAKMA VOWEL SIGN U;Mn;0;NSM;;;;;N;;;;;
+1112B;CHAKMA VOWEL SIGN UU;Mn;0;NSM;;;;;N;;;;;
+1112C;CHAKMA VOWEL SIGN E;Mc;0;L;;;;;N;;;;;
+1112D;CHAKMA VOWEL SIGN AI;Mn;0;NSM;;;;;N;;;;;
+1112E;CHAKMA VOWEL SIGN O;Mn;0;NSM;11131 11127;;;;N;;;;;
+1112F;CHAKMA VOWEL SIGN AU;Mn;0;NSM;11132 11127;;;;N;;;;;
+11130;CHAKMA VOWEL SIGN OI;Mn;0;NSM;;;;;N;;;;;
+11131;CHAKMA O MARK;Mn;0;NSM;;;;;N;;;;;
+11132;CHAKMA AU MARK;Mn;0;NSM;;;;;N;;;;;
+11133;CHAKMA VIRAMA;Mn;9;NSM;;;;;N;;;;;
+11134;CHAKMA MAAYYAA;Mn;9;NSM;;;;;N;;;;;
+11136;CHAKMA DIGIT ZERO;Nd;0;L;;0;0;0;N;;;;;
+11137;CHAKMA DIGIT ONE;Nd;0;L;;1;1;1;N;;;;;
+11138;CHAKMA DIGIT TWO;Nd;0;L;;2;2;2;N;;;;;
+11139;CHAKMA DIGIT THREE;Nd;0;L;;3;3;3;N;;;;;
+1113A;CHAKMA DIGIT FOUR;Nd;0;L;;4;4;4;N;;;;;
+1113B;CHAKMA DIGIT FIVE;Nd;0;L;;5;5;5;N;;;;;
+1113C;CHAKMA DIGIT SIX;Nd;0;L;;6;6;6;N;;;;;
+1113D;CHAKMA DIGIT SEVEN;Nd;0;L;;7;7;7;N;;;;;
+1113E;CHAKMA DIGIT EIGHT;Nd;0;L;;8;8;8;N;;;;;
+1113F;CHAKMA DIGIT NINE;Nd;0;L;;9;9;9;N;;;;;
+11140;CHAKMA SECTION MARK;Po;0;L;;;;;N;;;;;
+11141;CHAKMA DANDA;Po;0;L;;;;;N;;;;;
+11142;CHAKMA DOUBLE DANDA;Po;0;L;;;;;N;;;;;
+11143;CHAKMA QUESTION MARK;Po;0;L;;;;;N;;;;;
+11180;SHARADA SIGN CANDRABINDU;Mn;0;NSM;;;;;N;;;;;
+11181;SHARADA SIGN ANUSVARA;Mn;0;NSM;;;;;N;;;;;
+11182;SHARADA SIGN VISARGA;Mc;0;L;;;;;N;;;;;
+11183;SHARADA LETTER A;Lo;0;L;;;;;N;;;;;
+11184;SHARADA LETTER AA;Lo;0;L;;;;;N;;;;;
+11185;SHARADA LETTER I;Lo;0;L;;;;;N;;;;;
+11186;SHARADA LETTER II;Lo;0;L;;;;;N;;;;;
+11187;SHARADA LETTER U;Lo;0;L;;;;;N;;;;;
+11188;SHARADA LETTER UU;Lo;0;L;;;;;N;;;;;
+11189;SHARADA LETTER VOCALIC R;Lo;0;L;;;;;N;;;;;
+1118A;SHARADA LETTER VOCALIC RR;Lo;0;L;;;;;N;;;;;
+1118B;SHARADA LETTER VOCALIC L;Lo;0;L;;;;;N;;;;;
+1118C;SHARADA LETTER VOCALIC LL;Lo;0;L;;;;;N;;;;;
+1118D;SHARADA LETTER E;Lo;0;L;;;;;N;;;;;
+1118E;SHARADA LETTER AI;Lo;0;L;;;;;N;;;;;
+1118F;SHARADA LETTER O;Lo;0;L;;;;;N;;;;;
+11190;SHARADA LETTER AU;Lo;0;L;;;;;N;;;;;
+11191;SHARADA LETTER KA;Lo;0;L;;;;;N;;;;;
+11192;SHARADA LETTER KHA;Lo;0;L;;;;;N;;;;;
+11193;SHARADA LETTER GA;Lo;0;L;;;;;N;;;;;
+11194;SHARADA LETTER GHA;Lo;0;L;;;;;N;;;;;
+11195;SHARADA LETTER NGA;Lo;0;L;;;;;N;;;;;
+11196;SHARADA LETTER CA;Lo;0;L;;;;;N;;;;;
+11197;SHARADA LETTER CHA;Lo;0;L;;;;;N;;;;;
+11198;SHARADA LETTER JA;Lo;0;L;;;;;N;;;;;
+11199;SHARADA LETTER JHA;Lo;0;L;;;;;N;;;;;
+1119A;SHARADA LETTER NYA;Lo;0;L;;;;;N;;;;;
+1119B;SHARADA LETTER TTA;Lo;0;L;;;;;N;;;;;
+1119C;SHARADA LETTER TTHA;Lo;0;L;;;;;N;;;;;
+1119D;SHARADA LETTER DDA;Lo;0;L;;;;;N;;;;;
+1119E;SHARADA LETTER DDHA;Lo;0;L;;;;;N;;;;;
+1119F;SHARADA LETTER NNA;Lo;0;L;;;;;N;;;;;
+111A0;SHARADA LETTER TA;Lo;0;L;;;;;N;;;;;
+111A1;SHARADA LETTER THA;Lo;0;L;;;;;N;;;;;
+111A2;SHARADA LETTER DA;Lo;0;L;;;;;N;;;;;
+111A3;SHARADA LETTER DHA;Lo;0;L;;;;;N;;;;;
+111A4;SHARADA LETTER NA;Lo;0;L;;;;;N;;;;;
+111A5;SHARADA LETTER PA;Lo;0;L;;;;;N;;;;;
+111A6;SHARADA LETTER PHA;Lo;0;L;;;;;N;;;;;
+111A7;SHARADA LETTER BA;Lo;0;L;;;;;N;;;;;
+111A8;SHARADA LETTER BHA;Lo;0;L;;;;;N;;;;;
+111A9;SHARADA LETTER MA;Lo;0;L;;;;;N;;;;;
+111AA;SHARADA LETTER YA;Lo;0;L;;;;;N;;;;;
+111AB;SHARADA LETTER RA;Lo;0;L;;;;;N;;;;;
+111AC;SHARADA LETTER LA;Lo;0;L;;;;;N;;;;;
+111AD;SHARADA LETTER LLA;Lo;0;L;;;;;N;;;;;
+111AE;SHARADA LETTER VA;Lo;0;L;;;;;N;;;;;
+111AF;SHARADA LETTER SHA;Lo;0;L;;;;;N;;;;;
+111B0;SHARADA LETTER SSA;Lo;0;L;;;;;N;;;;;
+111B1;SHARADA LETTER SA;Lo;0;L;;;;;N;;;;;
+111B2;SHARADA LETTER HA;Lo;0;L;;;;;N;;;;;
+111B3;SHARADA VOWEL SIGN AA;Mc;0;L;;;;;N;;;;;
+111B4;SHARADA VOWEL SIGN I;Mc;0;L;;;;;N;;;;;
+111B5;SHARADA VOWEL SIGN II;Mc;0;L;;;;;N;;;;;
+111B6;SHARADA VOWEL SIGN U;Mn;0;NSM;;;;;N;;;;;
+111B7;SHARADA VOWEL SIGN UU;Mn;0;NSM;;;;;N;;;;;
+111B8;SHARADA VOWEL SIGN VOCALIC R;Mn;0;NSM;;;;;N;;;;;
+111B9;SHARADA VOWEL SIGN VOCALIC RR;Mn;0;NSM;;;;;N;;;;;
+111BA;SHARADA VOWEL SIGN VOCALIC L;Mn;0;NSM;;;;;N;;;;;
+111BB;SHARADA VOWEL SIGN VOCALIC LL;Mn;0;NSM;;;;;N;;;;;
+111BC;SHARADA VOWEL SIGN E;Mn;0;NSM;;;;;N;;;;;
+111BD;SHARADA VOWEL SIGN AI;Mn;0;NSM;;;;;N;;;;;
+111BE;SHARADA VOWEL SIGN O;Mn;0;NSM;;;;;N;;;;;
+111BF;SHARADA VOWEL SIGN AU;Mc;0;L;;;;;N;;;;;
+111C0;SHARADA SIGN VIRAMA;Mc;9;L;;;;;N;;;;;
+111C1;SHARADA SIGN AVAGRAHA;Lo;0;L;;;;;N;;;;;
+111C2;SHARADA SIGN JIHVAMULIYA;Lo;0;L;;;;;N;;;;;
+111C3;SHARADA SIGN UPADHMANIYA;Lo;0;L;;;;;N;;;;;
+111C4;SHARADA OM;Lo;0;L;;;;;N;;;;;
+111C5;SHARADA DANDA;Po;0;L;;;;;N;;;;;
+111C6;SHARADA DOUBLE DANDA;Po;0;L;;;;;N;;;;;
+111C7;SHARADA ABBREVIATION SIGN;Po;0;L;;;;;N;;;;;
+111C8;SHARADA SEPARATOR;Po;0;L;;;;;N;;;;;
+111D0;SHARADA DIGIT ZERO;Nd;0;L;;0;0;0;N;;;;;
+111D1;SHARADA DIGIT ONE;Nd;0;L;;1;1;1;N;;;;;
+111D2;SHARADA DIGIT TWO;Nd;0;L;;2;2;2;N;;;;;
+111D3;SHARADA DIGIT THREE;Nd;0;L;;3;3;3;N;;;;;
+111D4;SHARADA DIGIT FOUR;Nd;0;L;;4;4;4;N;;;;;
+111D5;SHARADA DIGIT FIVE;Nd;0;L;;5;5;5;N;;;;;
+111D6;SHARADA DIGIT SIX;Nd;0;L;;6;6;6;N;;;;;
+111D7;SHARADA DIGIT SEVEN;Nd;0;L;;7;7;7;N;;;;;
+111D8;SHARADA DIGIT EIGHT;Nd;0;L;;8;8;8;N;;;;;
+111D9;SHARADA DIGIT NINE;Nd;0;L;;9;9;9;N;;;;;
+11680;TAKRI LETTER A;Lo;0;L;;;;;N;;;;;
+11681;TAKRI LETTER AA;Lo;0;L;;;;;N;;;;;
+11682;TAKRI LETTER I;Lo;0;L;;;;;N;;;;;
+11683;TAKRI LETTER II;Lo;0;L;;;;;N;;;;;
+11684;TAKRI LETTER U;Lo;0;L;;;;;N;;;;;
+11685;TAKRI LETTER UU;Lo;0;L;;;;;N;;;;;
+11686;TAKRI LETTER E;Lo;0;L;;;;;N;;;;;
+11687;TAKRI LETTER AI;Lo;0;L;;;;;N;;;;;
+11688;TAKRI LETTER O;Lo;0;L;;;;;N;;;;;
+11689;TAKRI LETTER AU;Lo;0;L;;;;;N;;;;;
+1168A;TAKRI LETTER KA;Lo;0;L;;;;;N;;;;;
+1168B;TAKRI LETTER KHA;Lo;0;L;;;;;N;;;;;
+1168C;TAKRI LETTER GA;Lo;0;L;;;;;N;;;;;
+1168D;TAKRI LETTER GHA;Lo;0;L;;;;;N;;;;;
+1168E;TAKRI LETTER NGA;Lo;0;L;;;;;N;;;;;
+1168F;TAKRI LETTER CA;Lo;0;L;;;;;N;;;;;
+11690;TAKRI LETTER CHA;Lo;0;L;;;;;N;;;;;
+11691;TAKRI LETTER JA;Lo;0;L;;;;;N;;;;;
+11692;TAKRI LETTER JHA;Lo;0;L;;;;;N;;;;;
+11693;TAKRI LETTER NYA;Lo;0;L;;;;;N;;;;;
+11694;TAKRI LETTER TTA;Lo;0;L;;;;;N;;;;;
+11695;TAKRI LETTER TTHA;Lo;0;L;;;;;N;;;;;
+11696;TAKRI LETTER DDA;Lo;0;L;;;;;N;;;;;
+11697;TAKRI LETTER DDHA;Lo;0;L;;;;;N;;;;;
+11698;TAKRI LETTER NNA;Lo;0;L;;;;;N;;;;;
+11699;TAKRI LETTER TA;Lo;0;L;;;;;N;;;;;
+1169A;TAKRI LETTER THA;Lo;0;L;;;;;N;;;;;
+1169B;TAKRI LETTER DA;Lo;0;L;;;;;N;;;;;
+1169C;TAKRI LETTER DHA;Lo;0;L;;;;;N;;;;;
+1169D;TAKRI LETTER NA;Lo;0;L;;;;;N;;;;;
+1169E;TAKRI LETTER PA;Lo;0;L;;;;;N;;;;;
+1169F;TAKRI LETTER PHA;Lo;0;L;;;;;N;;;;;
+116A0;TAKRI LETTER BA;Lo;0;L;;;;;N;;;;;
+116A1;TAKRI LETTER BHA;Lo;0;L;;;;;N;;;;;
+116A2;TAKRI LETTER MA;Lo;0;L;;;;;N;;;;;
+116A3;TAKRI LETTER YA;Lo;0;L;;;;;N;;;;;
+116A4;TAKRI LETTER RA;Lo;0;L;;;;;N;;;;;
+116A5;TAKRI LETTER LA;Lo;0;L;;;;;N;;;;;
+116A6;TAKRI LETTER VA;Lo;0;L;;;;;N;;;;;
+116A7;TAKRI LETTER SHA;Lo;0;L;;;;;N;;;;;
+116A8;TAKRI LETTER SA;Lo;0;L;;;;;N;;;;;
+116A9;TAKRI LETTER HA;Lo;0;L;;;;;N;;;;;
+116AA;TAKRI LETTER RRA;Lo;0;L;;;;;N;;;;;
+116AB;TAKRI SIGN ANUSVARA;Mn;0;NSM;;;;;N;;;;;
+116AC;TAKRI SIGN VISARGA;Mc;0;L;;;;;N;;;;;
+116AD;TAKRI VOWEL SIGN AA;Mn;0;NSM;;;;;N;;;;;
+116AE;TAKRI VOWEL SIGN I;Mc;0;L;;;;;N;;;;;
+116AF;TAKRI VOWEL SIGN II;Mc;0;L;;;;;N;;;;;
+116B0;TAKRI VOWEL SIGN U;Mn;0;NSM;;;;;N;;;;;
+116B1;TAKRI VOWEL SIGN UU;Mn;0;NSM;;;;;N;;;;;
+116B2;TAKRI VOWEL SIGN E;Mn;0;NSM;;;;;N;;;;;
+116B3;TAKRI VOWEL SIGN AI;Mn;0;NSM;;;;;N;;;;;
+116B4;TAKRI VOWEL SIGN O;Mn;0;NSM;;;;;N;;;;;
+116B5;TAKRI VOWEL SIGN AU;Mn;0;NSM;;;;;N;;;;;
+116B6;TAKRI SIGN VIRAMA;Mc;9;L;;;;;N;;;;;
+116B7;TAKRI SIGN NUKTA;Mn;7;NSM;;;;;N;;;;;
+116C0;TAKRI DIGIT ZERO;Nd;0;L;;0;0;0;N;;;;;
+116C1;TAKRI DIGIT ONE;Nd;0;L;;1;1;1;N;;;;;
+116C2;TAKRI DIGIT TWO;Nd;0;L;;2;2;2;N;;;;;
+116C3;TAKRI DIGIT THREE;Nd;0;L;;3;3;3;N;;;;;
+116C4;TAKRI DIGIT FOUR;Nd;0;L;;4;4;4;N;;;;;
+116C5;TAKRI DIGIT FIVE;Nd;0;L;;5;5;5;N;;;;;
+116C6;TAKRI DIGIT SIX;Nd;0;L;;6;6;6;N;;;;;
+116C7;TAKRI DIGIT SEVEN;Nd;0;L;;7;7;7;N;;;;;
+116C8;TAKRI DIGIT EIGHT;Nd;0;L;;8;8;8;N;;;;;
+116C9;TAKRI DIGIT NINE;Nd;0;L;;9;9;9;N;;;;;
+12000;CUNEIFORM SIGN A;Lo;0;L;;;;;N;;;;;
+12001;CUNEIFORM SIGN A TIMES A;Lo;0;L;;;;;N;;;;;
+12002;CUNEIFORM SIGN A TIMES BAD;Lo;0;L;;;;;N;;;;;
+12003;CUNEIFORM SIGN A TIMES GAN2 TENU;Lo;0;L;;;;;N;;;;;
+12004;CUNEIFORM SIGN A TIMES HA;Lo;0;L;;;;;N;;;;;
+12005;CUNEIFORM SIGN A TIMES IGI;Lo;0;L;;;;;N;;;;;
+12006;CUNEIFORM SIGN A TIMES LAGAR GUNU;Lo;0;L;;;;;N;;;;;
+12007;CUNEIFORM SIGN A TIMES MUSH;Lo;0;L;;;;;N;;;;;
+12008;CUNEIFORM SIGN A TIMES SAG;Lo;0;L;;;;;N;;;;;
+12009;CUNEIFORM SIGN A2;Lo;0;L;;;;;N;;;;;
+1200A;CUNEIFORM SIGN AB;Lo;0;L;;;;;N;;;;;
+1200B;CUNEIFORM SIGN AB TIMES ASH2;Lo;0;L;;;;;N;;;;;
+1200C;CUNEIFORM SIGN AB TIMES DUN3 GUNU;Lo;0;L;;;;;N;;;;;
+1200D;CUNEIFORM SIGN AB TIMES GAL;Lo;0;L;;;;;N;;;;;
+1200E;CUNEIFORM SIGN AB TIMES GAN2 TENU;Lo;0;L;;;;;N;;;;;
+1200F;CUNEIFORM SIGN AB TIMES HA;Lo;0;L;;;;;N;;;;;
+12010;CUNEIFORM SIGN AB TIMES IGI GUNU;Lo;0;L;;;;;N;;;;;
+12011;CUNEIFORM SIGN AB TIMES IMIN;Lo;0;L;;;;;N;;;;;
+12012;CUNEIFORM SIGN AB TIMES LAGAB;Lo;0;L;;;;;N;;;;;
+12013;CUNEIFORM SIGN AB TIMES SHESH;Lo;0;L;;;;;N;;;;;
+12014;CUNEIFORM SIGN AB TIMES U PLUS U PLUS U;Lo;0;L;;;;;N;;;;;
+12015;CUNEIFORM SIGN AB GUNU;Lo;0;L;;;;;N;;;;;
+12016;CUNEIFORM SIGN AB2;Lo;0;L;;;;;N;;;;;
+12017;CUNEIFORM SIGN AB2 TIMES BALAG;Lo;0;L;;;;;N;;;;;
+12018;CUNEIFORM SIGN AB2 TIMES GAN2 TENU;Lo;0;L;;;;;N;;;;;
+12019;CUNEIFORM SIGN AB2 TIMES ME PLUS EN;Lo;0;L;;;;;N;;;;;
+1201A;CUNEIFORM SIGN AB2 TIMES SHA3;Lo;0;L;;;;;N;;;;;
+1201B;CUNEIFORM SIGN AB2 TIMES TAK4;Lo;0;L;;;;;N;;;;;
+1201C;CUNEIFORM SIGN AD;Lo;0;L;;;;;N;;;;;
+1201D;CUNEIFORM SIGN AK;Lo;0;L;;;;;N;;;;;
+1201E;CUNEIFORM SIGN AK TIMES ERIN2;Lo;0;L;;;;;N;;;;;
+1201F;CUNEIFORM SIGN AK TIMES SHITA PLUS GISH;Lo;0;L;;;;;N;;;;;
+12020;CUNEIFORM SIGN AL;Lo;0;L;;;;;N;;;;;
+12021;CUNEIFORM SIGN AL TIMES AL;Lo;0;L;;;;;N;;;;;
+12022;CUNEIFORM SIGN AL TIMES DIM2;Lo;0;L;;;;;N;;;;;
+12023;CUNEIFORM SIGN AL TIMES GISH;Lo;0;L;;;;;N;;;;;
+12024;CUNEIFORM SIGN AL TIMES HA;Lo;0;L;;;;;N;;;;;
+12025;CUNEIFORM SIGN AL TIMES KAD3;Lo;0;L;;;;;N;;;;;
+12026;CUNEIFORM SIGN AL TIMES KI;Lo;0;L;;;;;N;;;;;
+12027;CUNEIFORM SIGN AL TIMES SHE;Lo;0;L;;;;;N;;;;;
+12028;CUNEIFORM SIGN AL TIMES USH;Lo;0;L;;;;;N;;;;;
+12029;CUNEIFORM SIGN ALAN;Lo;0;L;;;;;N;;;;;
+1202A;CUNEIFORM SIGN ALEPH;Lo;0;L;;;;;N;;;;;
+1202B;CUNEIFORM SIGN AMAR;Lo;0;L;;;;;N;;;;;
+1202C;CUNEIFORM SIGN AMAR TIMES SHE;Lo;0;L;;;;;N;;;;;
+1202D;CUNEIFORM SIGN AN;Lo;0;L;;;;;N;;;;;
+1202E;CUNEIFORM SIGN AN OVER AN;Lo;0;L;;;;;N;;;;;
+1202F;CUNEIFORM SIGN AN THREE TIMES;Lo;0;L;;;;;N;;;;;
+12030;CUNEIFORM SIGN AN PLUS NAGA OPPOSING AN PLUS NAGA;Lo;0;L;;;;;N;;;;;
+12031;CUNEIFORM SIGN AN PLUS NAGA SQUARED;Lo;0;L;;;;;N;;;;;
+12032;CUNEIFORM SIGN ANSHE;Lo;0;L;;;;;N;;;;;
+12033;CUNEIFORM SIGN APIN;Lo;0;L;;;;;N;;;;;
+12034;CUNEIFORM SIGN ARAD;Lo;0;L;;;;;N;;;;;
+12035;CUNEIFORM SIGN ARAD TIMES KUR;Lo;0;L;;;;;N;;;;;
+12036;CUNEIFORM SIGN ARKAB;Lo;0;L;;;;;N;;;;;
+12037;CUNEIFORM SIGN ASAL2;Lo;0;L;;;;;N;;;;;
+12038;CUNEIFORM SIGN ASH;Lo;0;L;;;;;N;;;;;
+12039;CUNEIFORM SIGN ASH ZIDA TENU;Lo;0;L;;;;;N;;;;;
+1203A;CUNEIFORM SIGN ASH KABA TENU;Lo;0;L;;;;;N;;;;;
+1203B;CUNEIFORM SIGN ASH OVER ASH TUG2 OVER TUG2 TUG2 OVER TUG2 PAP;Lo;0;L;;;;;N;;;;;
+1203C;CUNEIFORM SIGN ASH OVER ASH OVER ASH;Lo;0;L;;;;;N;;;;;
+1203D;CUNEIFORM SIGN ASH OVER ASH OVER ASH CROSSING ASH OVER ASH OVER ASH;Lo;0;L;;;;;N;;;;;
+1203E;CUNEIFORM SIGN ASH2;Lo;0;L;;;;;N;;;;;
+1203F;CUNEIFORM SIGN ASHGAB;Lo;0;L;;;;;N;;;;;
+12040;CUNEIFORM SIGN BA;Lo;0;L;;;;;N;;;;;
+12041;CUNEIFORM SIGN BAD;Lo;0;L;;;;;N;;;;;
+12042;CUNEIFORM SIGN BAG3;Lo;0;L;;;;;N;;;;;
+12043;CUNEIFORM SIGN BAHAR2;Lo;0;L;;;;;N;;;;;
+12044;CUNEIFORM SIGN BAL;Lo;0;L;;;;;N;;;;;
+12045;CUNEIFORM SIGN BAL OVER BAL;Lo;0;L;;;;;N;;;;;
+12046;CUNEIFORM SIGN BALAG;Lo;0;L;;;;;N;;;;;
+12047;CUNEIFORM SIGN BAR;Lo;0;L;;;;;N;;;;;
+12048;CUNEIFORM SIGN BARA2;Lo;0;L;;;;;N;;;;;
+12049;CUNEIFORM SIGN BI;Lo;0;L;;;;;N;;;;;
+1204A;CUNEIFORM SIGN BI TIMES A;Lo;0;L;;;;;N;;;;;
+1204B;CUNEIFORM SIGN BI TIMES GAR;Lo;0;L;;;;;N;;;;;
+1204C;CUNEIFORM SIGN BI TIMES IGI GUNU;Lo;0;L;;;;;N;;;;;
+1204D;CUNEIFORM SIGN BU;Lo;0;L;;;;;N;;;;;
+1204E;CUNEIFORM SIGN BU OVER BU AB;Lo;0;L;;;;;N;;;;;
+1204F;CUNEIFORM SIGN BU OVER BU UN;Lo;0;L;;;;;N;;;;;
+12050;CUNEIFORM SIGN BU CROSSING BU;Lo;0;L;;;;;N;;;;;
+12051;CUNEIFORM SIGN BULUG;Lo;0;L;;;;;N;;;;;
+12052;CUNEIFORM SIGN BULUG OVER BULUG;Lo;0;L;;;;;N;;;;;
+12053;CUNEIFORM SIGN BUR;Lo;0;L;;;;;N;;;;;
+12054;CUNEIFORM SIGN BUR2;Lo;0;L;;;;;N;;;;;
+12055;CUNEIFORM SIGN DA;Lo;0;L;;;;;N;;;;;
+12056;CUNEIFORM SIGN DAG;Lo;0;L;;;;;N;;;;;
+12057;CUNEIFORM SIGN DAG KISIM5 TIMES A PLUS MASH;Lo;0;L;;;;;N;;;;;
+12058;CUNEIFORM SIGN DAG KISIM5 TIMES AMAR;Lo;0;L;;;;;N;;;;;
+12059;CUNEIFORM SIGN DAG KISIM5 TIMES BALAG;Lo;0;L;;;;;N;;;;;
+1205A;CUNEIFORM SIGN DAG KISIM5 TIMES BI;Lo;0;L;;;;;N;;;;;
+1205B;CUNEIFORM SIGN DAG KISIM5 TIMES GA;Lo;0;L;;;;;N;;;;;
+1205C;CUNEIFORM SIGN DAG KISIM5 TIMES GA PLUS MASH;Lo;0;L;;;;;N;;;;;
+1205D;CUNEIFORM SIGN DAG KISIM5 TIMES GI;Lo;0;L;;;;;N;;;;;
+1205E;CUNEIFORM SIGN DAG KISIM5 TIMES GIR2;Lo;0;L;;;;;N;;;;;
+1205F;CUNEIFORM SIGN DAG KISIM5 TIMES GUD;Lo;0;L;;;;;N;;;;;
+12060;CUNEIFORM SIGN DAG KISIM5 TIMES HA;Lo;0;L;;;;;N;;;;;
+12061;CUNEIFORM SIGN DAG KISIM5 TIMES IR;Lo;0;L;;;;;N;;;;;
+12062;CUNEIFORM SIGN DAG KISIM5 TIMES IR PLUS LU;Lo;0;L;;;;;N;;;;;
+12063;CUNEIFORM SIGN DAG KISIM5 TIMES KAK;Lo;0;L;;;;;N;;;;;
+12064;CUNEIFORM SIGN DAG KISIM5 TIMES LA;Lo;0;L;;;;;N;;;;;
+12065;CUNEIFORM SIGN DAG KISIM5 TIMES LU;Lo;0;L;;;;;N;;;;;
+12066;CUNEIFORM SIGN DAG KISIM5 TIMES LU PLUS MASH2;Lo;0;L;;;;;N;;;;;
+12067;CUNEIFORM SIGN DAG KISIM5 TIMES LUM;Lo;0;L;;;;;N;;;;;
+12068;CUNEIFORM SIGN DAG KISIM5 TIMES NE;Lo;0;L;;;;;N;;;;;
+12069;CUNEIFORM SIGN DAG KISIM5 TIMES PAP PLUS PAP;Lo;0;L;;;;;N;;;;;
+1206A;CUNEIFORM SIGN DAG KISIM5 TIMES SI;Lo;0;L;;;;;N;;;;;
+1206B;CUNEIFORM SIGN DAG KISIM5 TIMES TAK4;Lo;0;L;;;;;N;;;;;
+1206C;CUNEIFORM SIGN DAG KISIM5 TIMES U2 PLUS GIR2;Lo;0;L;;;;;N;;;;;
+1206D;CUNEIFORM SIGN DAG KISIM5 TIMES USH;Lo;0;L;;;;;N;;;;;
+1206E;CUNEIFORM SIGN DAM;Lo;0;L;;;;;N;;;;;
+1206F;CUNEIFORM SIGN DAR;Lo;0;L;;;;;N;;;;;
+12070;CUNEIFORM SIGN DARA3;Lo;0;L;;;;;N;;;;;
+12071;CUNEIFORM SIGN DARA4;Lo;0;L;;;;;N;;;;;
+12072;CUNEIFORM SIGN DI;Lo;0;L;;;;;N;;;;;
+12073;CUNEIFORM SIGN DIB;Lo;0;L;;;;;N;;;;;
+12074;CUNEIFORM SIGN DIM;Lo;0;L;;;;;N;;;;;
+12075;CUNEIFORM SIGN DIM TIMES SHE;Lo;0;L;;;;;N;;;;;
+12076;CUNEIFORM SIGN DIM2;Lo;0;L;;;;;N;;;;;
+12077;CUNEIFORM SIGN DIN;Lo;0;L;;;;;N;;;;;
+12078;CUNEIFORM SIGN DIN KASKAL U GUNU DISH;Lo;0;L;;;;;N;;;;;
+12079;CUNEIFORM SIGN DISH;Lo;0;L;;;;;N;;;;;
+1207A;CUNEIFORM SIGN DU;Lo;0;L;;;;;N;;;;;
+1207B;CUNEIFORM SIGN DU OVER DU;Lo;0;L;;;;;N;;;;;
+1207C;CUNEIFORM SIGN DU GUNU;Lo;0;L;;;;;N;;;;;
+1207D;CUNEIFORM SIGN DU SHESHIG;Lo;0;L;;;;;N;;;;;
+1207E;CUNEIFORM SIGN DUB;Lo;0;L;;;;;N;;;;;
+1207F;CUNEIFORM SIGN DUB TIMES ESH2;Lo;0;L;;;;;N;;;;;
+12080;CUNEIFORM SIGN DUB2;Lo;0;L;;;;;N;;;;;
+12081;CUNEIFORM SIGN DUG;Lo;0;L;;;;;N;;;;;
+12082;CUNEIFORM SIGN DUGUD;Lo;0;L;;;;;N;;;;;
+12083;CUNEIFORM SIGN DUH;Lo;0;L;;;;;N;;;;;
+12084;CUNEIFORM SIGN DUN;Lo;0;L;;;;;N;;;;;
+12085;CUNEIFORM SIGN DUN3;Lo;0;L;;;;;N;;;;;
+12086;CUNEIFORM SIGN DUN3 GUNU;Lo;0;L;;;;;N;;;;;
+12087;CUNEIFORM SIGN DUN3 GUNU GUNU;Lo;0;L;;;;;N;;;;;
+12088;CUNEIFORM SIGN DUN4;Lo;0;L;;;;;N;;;;;
+12089;CUNEIFORM SIGN DUR2;Lo;0;L;;;;;N;;;;;
+1208A;CUNEIFORM SIGN E;Lo;0;L;;;;;N;;;;;
+1208B;CUNEIFORM SIGN E TIMES PAP;Lo;0;L;;;;;N;;;;;
+1208C;CUNEIFORM SIGN E OVER E NUN OVER NUN;Lo;0;L;;;;;N;;;;;
+1208D;CUNEIFORM SIGN E2;Lo;0;L;;;;;N;;;;;
+1208E;CUNEIFORM SIGN E2 TIMES A PLUS HA PLUS DA;Lo;0;L;;;;;N;;;;;
+1208F;CUNEIFORM SIGN E2 TIMES GAR;Lo;0;L;;;;;N;;;;;
+12090;CUNEIFORM SIGN E2 TIMES MI;Lo;0;L;;;;;N;;;;;
+12091;CUNEIFORM SIGN E2 TIMES SAL;Lo;0;L;;;;;N;;;;;
+12092;CUNEIFORM SIGN E2 TIMES SHE;Lo;0;L;;;;;N;;;;;
+12093;CUNEIFORM SIGN E2 TIMES U;Lo;0;L;;;;;N;;;;;
+12094;CUNEIFORM SIGN EDIN;Lo;0;L;;;;;N;;;;;
+12095;CUNEIFORM SIGN EGIR;Lo;0;L;;;;;N;;;;;
+12096;CUNEIFORM SIGN EL;Lo;0;L;;;;;N;;;;;
+12097;CUNEIFORM SIGN EN;Lo;0;L;;;;;N;;;;;
+12098;CUNEIFORM SIGN EN TIMES GAN2;Lo;0;L;;;;;N;;;;;
+12099;CUNEIFORM SIGN EN TIMES GAN2 TENU;Lo;0;L;;;;;N;;;;;
+1209A;CUNEIFORM SIGN EN TIMES ME;Lo;0;L;;;;;N;;;;;
+1209B;CUNEIFORM SIGN EN CROSSING EN;Lo;0;L;;;;;N;;;;;
+1209C;CUNEIFORM SIGN EN OPPOSING EN;Lo;0;L;;;;;N;;;;;
+1209D;CUNEIFORM SIGN EN SQUARED;Lo;0;L;;;;;N;;;;;
+1209E;CUNEIFORM SIGN EREN;Lo;0;L;;;;;N;;;;;
+1209F;CUNEIFORM SIGN ERIN2;Lo;0;L;;;;;N;;;;;
+120A0;CUNEIFORM SIGN ESH2;Lo;0;L;;;;;N;;;;;
+120A1;CUNEIFORM SIGN EZEN;Lo;0;L;;;;;N;;;;;
+120A2;CUNEIFORM SIGN EZEN TIMES A;Lo;0;L;;;;;N;;;;;
+120A3;CUNEIFORM SIGN EZEN TIMES A PLUS LAL;Lo;0;L;;;;;N;;;;;
+120A4;CUNEIFORM SIGN EZEN TIMES A PLUS LAL TIMES LAL;Lo;0;L;;;;;N;;;;;
+120A5;CUNEIFORM SIGN EZEN TIMES AN;Lo;0;L;;;;;N;;;;;
+120A6;CUNEIFORM SIGN EZEN TIMES BAD;Lo;0;L;;;;;N;;;;;
+120A7;CUNEIFORM SIGN EZEN TIMES DUN3 GUNU;Lo;0;L;;;;;N;;;;;
+120A8;CUNEIFORM SIGN EZEN TIMES DUN3 GUNU GUNU;Lo;0;L;;;;;N;;;;;
+120A9;CUNEIFORM SIGN EZEN TIMES HA;Lo;0;L;;;;;N;;;;;
+120AA;CUNEIFORM SIGN EZEN TIMES HA GUNU;Lo;0;L;;;;;N;;;;;
+120AB;CUNEIFORM SIGN EZEN TIMES IGI GUNU;Lo;0;L;;;;;N;;;;;
+120AC;CUNEIFORM SIGN EZEN TIMES KASKAL;Lo;0;L;;;;;N;;;;;
+120AD;CUNEIFORM SIGN EZEN TIMES KASKAL SQUARED;Lo;0;L;;;;;N;;;;;
+120AE;CUNEIFORM SIGN EZEN TIMES KU3;Lo;0;L;;;;;N;;;;;
+120AF;CUNEIFORM SIGN EZEN TIMES LA;Lo;0;L;;;;;N;;;;;
+120B0;CUNEIFORM SIGN EZEN TIMES LAL TIMES LAL;Lo;0;L;;;;;N;;;;;
+120B1;CUNEIFORM SIGN EZEN TIMES LI;Lo;0;L;;;;;N;;;;;
+120B2;CUNEIFORM SIGN EZEN TIMES LU;Lo;0;L;;;;;N;;;;;
+120B3;CUNEIFORM SIGN EZEN TIMES U2;Lo;0;L;;;;;N;;;;;
+120B4;CUNEIFORM SIGN EZEN TIMES UD;Lo;0;L;;;;;N;;;;;
+120B5;CUNEIFORM SIGN GA;Lo;0;L;;;;;N;;;;;
+120B6;CUNEIFORM SIGN GA GUNU;Lo;0;L;;;;;N;;;;;
+120B7;CUNEIFORM SIGN GA2;Lo;0;L;;;;;N;;;;;
+120B8;CUNEIFORM SIGN GA2 TIMES A PLUS DA PLUS HA;Lo;0;L;;;;;N;;;;;
+120B9;CUNEIFORM SIGN GA2 TIMES A PLUS HA;Lo;0;L;;;;;N;;;;;
+120BA;CUNEIFORM SIGN GA2 TIMES A PLUS IGI;Lo;0;L;;;;;N;;;;;
+120BB;CUNEIFORM SIGN GA2 TIMES AB2 TENU PLUS TAB;Lo;0;L;;;;;N;;;;;
+120BC;CUNEIFORM SIGN GA2 TIMES AN;Lo;0;L;;;;;N;;;;;
+120BD;CUNEIFORM SIGN GA2 TIMES ASH;Lo;0;L;;;;;N;;;;;
+120BE;CUNEIFORM SIGN GA2 TIMES ASH2 PLUS GAL;Lo;0;L;;;;;N;;;;;
+120BF;CUNEIFORM SIGN GA2 TIMES BAD;Lo;0;L;;;;;N;;;;;
+120C0;CUNEIFORM SIGN GA2 TIMES BAR PLUS RA;Lo;0;L;;;;;N;;;;;
+120C1;CUNEIFORM SIGN GA2 TIMES BUR;Lo;0;L;;;;;N;;;;;
+120C2;CUNEIFORM SIGN GA2 TIMES BUR PLUS RA;Lo;0;L;;;;;N;;;;;
+120C3;CUNEIFORM SIGN GA2 TIMES DA;Lo;0;L;;;;;N;;;;;
+120C4;CUNEIFORM SIGN GA2 TIMES DI;Lo;0;L;;;;;N;;;;;
+120C5;CUNEIFORM SIGN GA2 TIMES DIM TIMES SHE;Lo;0;L;;;;;N;;;;;
+120C6;CUNEIFORM SIGN GA2 TIMES DUB;Lo;0;L;;;;;N;;;;;
+120C7;CUNEIFORM SIGN GA2 TIMES EL;Lo;0;L;;;;;N;;;;;
+120C8;CUNEIFORM SIGN GA2 TIMES EL PLUS LA;Lo;0;L;;;;;N;;;;;
+120C9;CUNEIFORM SIGN GA2 TIMES EN;Lo;0;L;;;;;N;;;;;
+120CA;CUNEIFORM SIGN GA2 TIMES EN TIMES GAN2 TENU;Lo;0;L;;;;;N;;;;;
+120CB;CUNEIFORM SIGN GA2 TIMES GAN2 TENU;Lo;0;L;;;;;N;;;;;
+120CC;CUNEIFORM SIGN GA2 TIMES GAR;Lo;0;L;;;;;N;;;;;
+120CD;CUNEIFORM SIGN GA2 TIMES GI;Lo;0;L;;;;;N;;;;;
+120CE;CUNEIFORM SIGN GA2 TIMES GI4;Lo;0;L;;;;;N;;;;;
+120CF;CUNEIFORM SIGN GA2 TIMES GI4 PLUS A;Lo;0;L;;;;;N;;;;;
+120D0;CUNEIFORM SIGN GA2 TIMES GIR2 PLUS SU;Lo;0;L;;;;;N;;;;;
+120D1;CUNEIFORM SIGN GA2 TIMES HA PLUS LU PLUS ESH2;Lo;0;L;;;;;N;;;;;
+120D2;CUNEIFORM SIGN GA2 TIMES HAL;Lo;0;L;;;;;N;;;;;
+120D3;CUNEIFORM SIGN GA2 TIMES HAL PLUS LA;Lo;0;L;;;;;N;;;;;
+120D4;CUNEIFORM SIGN GA2 TIMES HI PLUS LI;Lo;0;L;;;;;N;;;;;
+120D5;CUNEIFORM SIGN GA2 TIMES HUB2;Lo;0;L;;;;;N;;;;;
+120D6;CUNEIFORM SIGN GA2 TIMES IGI GUNU;Lo;0;L;;;;;N;;;;;
+120D7;CUNEIFORM SIGN GA2 TIMES ISH PLUS HU PLUS ASH;Lo;0;L;;;;;N;;;;;
+120D8;CUNEIFORM SIGN GA2 TIMES KAK;Lo;0;L;;;;;N;;;;;
+120D9;CUNEIFORM SIGN GA2 TIMES KASKAL;Lo;0;L;;;;;N;;;;;
+120DA;CUNEIFORM SIGN GA2 TIMES KID;Lo;0;L;;;;;N;;;;;
+120DB;CUNEIFORM SIGN GA2 TIMES KID PLUS LAL;Lo;0;L;;;;;N;;;;;
+120DC;CUNEIFORM SIGN GA2 TIMES KU3 PLUS AN;Lo;0;L;;;;;N;;;;;
+120DD;CUNEIFORM SIGN GA2 TIMES LA;Lo;0;L;;;;;N;;;;;
+120DE;CUNEIFORM SIGN GA2 TIMES ME PLUS EN;Lo;0;L;;;;;N;;;;;
+120DF;CUNEIFORM SIGN GA2 TIMES MI;Lo;0;L;;;;;N;;;;;
+120E0;CUNEIFORM SIGN GA2 TIMES NUN;Lo;0;L;;;;;N;;;;;
+120E1;CUNEIFORM SIGN GA2 TIMES NUN OVER NUN;Lo;0;L;;;;;N;;;;;
+120E2;CUNEIFORM SIGN GA2 TIMES PA;Lo;0;L;;;;;N;;;;;
+120E3;CUNEIFORM SIGN GA2 TIMES SAL;Lo;0;L;;;;;N;;;;;
+120E4;CUNEIFORM SIGN GA2 TIMES SAR;Lo;0;L;;;;;N;;;;;
+120E5;CUNEIFORM SIGN GA2 TIMES SHE;Lo;0;L;;;;;N;;;;;
+120E6;CUNEIFORM SIGN GA2 TIMES SHE PLUS TUR;Lo;0;L;;;;;N;;;;;
+120E7;CUNEIFORM SIGN GA2 TIMES SHID;Lo;0;L;;;;;N;;;;;
+120E8;CUNEIFORM SIGN GA2 TIMES SUM;Lo;0;L;;;;;N;;;;;
+120E9;CUNEIFORM SIGN GA2 TIMES TAK4;Lo;0;L;;;;;N;;;;;
+120EA;CUNEIFORM SIGN GA2 TIMES U;Lo;0;L;;;;;N;;;;;
+120EB;CUNEIFORM SIGN GA2 TIMES UD;Lo;0;L;;;;;N;;;;;
+120EC;CUNEIFORM SIGN GA2 TIMES UD PLUS DU;Lo;0;L;;;;;N;;;;;
+120ED;CUNEIFORM SIGN GA2 OVER GA2;Lo;0;L;;;;;N;;;;;
+120EE;CUNEIFORM SIGN GABA;Lo;0;L;;;;;N;;;;;
+120EF;CUNEIFORM SIGN GABA CROSSING GABA;Lo;0;L;;;;;N;;;;;
+120F0;CUNEIFORM SIGN GAD;Lo;0;L;;;;;N;;;;;
+120F1;CUNEIFORM SIGN GAD OVER GAD GAR OVER GAR;Lo;0;L;;;;;N;;;;;
+120F2;CUNEIFORM SIGN GAL;Lo;0;L;;;;;N;;;;;
+120F3;CUNEIFORM SIGN GAL GAD OVER GAD GAR OVER GAR;Lo;0;L;;;;;N;;;;;
+120F4;CUNEIFORM SIGN GALAM;Lo;0;L;;;;;N;;;;;
+120F5;CUNEIFORM SIGN GAM;Lo;0;L;;;;;N;;;;;
+120F6;CUNEIFORM SIGN GAN;Lo;0;L;;;;;N;;;;;
+120F7;CUNEIFORM SIGN GAN2;Lo;0;L;;;;;N;;;;;
+120F8;CUNEIFORM SIGN GAN2 TENU;Lo;0;L;;;;;N;;;;;
+120F9;CUNEIFORM SIGN GAN2 OVER GAN2;Lo;0;L;;;;;N;;;;;
+120FA;CUNEIFORM SIGN GAN2 CROSSING GAN2;Lo;0;L;;;;;N;;;;;
+120FB;CUNEIFORM SIGN GAR;Lo;0;L;;;;;N;;;;;
+120FC;CUNEIFORM SIGN GAR3;Lo;0;L;;;;;N;;;;;
+120FD;CUNEIFORM SIGN GASHAN;Lo;0;L;;;;;N;;;;;
+120FE;CUNEIFORM SIGN GESHTIN;Lo;0;L;;;;;N;;;;;
+120FF;CUNEIFORM SIGN GESHTIN TIMES KUR;Lo;0;L;;;;;N;;;;;
+12100;CUNEIFORM SIGN GI;Lo;0;L;;;;;N;;;;;
+12101;CUNEIFORM SIGN GI TIMES E;Lo;0;L;;;;;N;;;;;
+12102;CUNEIFORM SIGN GI TIMES U;Lo;0;L;;;;;N;;;;;
+12103;CUNEIFORM SIGN GI CROSSING GI;Lo;0;L;;;;;N;;;;;
+12104;CUNEIFORM SIGN GI4;Lo;0;L;;;;;N;;;;;
+12105;CUNEIFORM SIGN GI4 OVER GI4;Lo;0;L;;;;;N;;;;;
+12106;CUNEIFORM SIGN GI4 CROSSING GI4;Lo;0;L;;;;;N;;;;;
+12107;CUNEIFORM SIGN GIDIM;Lo;0;L;;;;;N;;;;;
+12108;CUNEIFORM SIGN GIR2;Lo;0;L;;;;;N;;;;;
+12109;CUNEIFORM SIGN GIR2 GUNU;Lo;0;L;;;;;N;;;;;
+1210A;CUNEIFORM SIGN GIR3;Lo;0;L;;;;;N;;;;;
+1210B;CUNEIFORM SIGN GIR3 TIMES A PLUS IGI;Lo;0;L;;;;;N;;;;;
+1210C;CUNEIFORM SIGN GIR3 TIMES GAN2 TENU;Lo;0;L;;;;;N;;;;;
+1210D;CUNEIFORM SIGN GIR3 TIMES IGI;Lo;0;L;;;;;N;;;;;
+1210E;CUNEIFORM SIGN GIR3 TIMES LU PLUS IGI;Lo;0;L;;;;;N;;;;;
+1210F;CUNEIFORM SIGN GIR3 TIMES PA;Lo;0;L;;;;;N;;;;;
+12110;CUNEIFORM SIGN GISAL;Lo;0;L;;;;;N;;;;;
+12111;CUNEIFORM SIGN GISH;Lo;0;L;;;;;N;;;;;
+12112;CUNEIFORM SIGN GISH CROSSING GISH;Lo;0;L;;;;;N;;;;;
+12113;CUNEIFORM SIGN GISH TIMES BAD;Lo;0;L;;;;;N;;;;;
+12114;CUNEIFORM SIGN GISH TIMES TAK4;Lo;0;L;;;;;N;;;;;
+12115;CUNEIFORM SIGN GISH TENU;Lo;0;L;;;;;N;;;;;
+12116;CUNEIFORM SIGN GU;Lo;0;L;;;;;N;;;;;
+12117;CUNEIFORM SIGN GU CROSSING GU;Lo;0;L;;;;;N;;;;;
+12118;CUNEIFORM SIGN GU2;Lo;0;L;;;;;N;;;;;
+12119;CUNEIFORM SIGN GU2 TIMES KAK;Lo;0;L;;;;;N;;;;;
+1211A;CUNEIFORM SIGN GU2 TIMES KAK TIMES IGI GUNU;Lo;0;L;;;;;N;;;;;
+1211B;CUNEIFORM SIGN GU2 TIMES NUN;Lo;0;L;;;;;N;;;;;
+1211C;CUNEIFORM SIGN GU2 TIMES SAL PLUS TUG2;Lo;0;L;;;;;N;;;;;
+1211D;CUNEIFORM SIGN GU2 GUNU;Lo;0;L;;;;;N;;;;;
+1211E;CUNEIFORM SIGN GUD;Lo;0;L;;;;;N;;;;;
+1211F;CUNEIFORM SIGN GUD TIMES A PLUS KUR;Lo;0;L;;;;;N;;;;;
+12120;CUNEIFORM SIGN GUD TIMES KUR;Lo;0;L;;;;;N;;;;;
+12121;CUNEIFORM SIGN GUD OVER GUD LUGAL;Lo;0;L;;;;;N;;;;;
+12122;CUNEIFORM SIGN GUL;Lo;0;L;;;;;N;;;;;
+12123;CUNEIFORM SIGN GUM;Lo;0;L;;;;;N;;;;;
+12124;CUNEIFORM SIGN GUM TIMES SHE;Lo;0;L;;;;;N;;;;;
+12125;CUNEIFORM SIGN GUR;Lo;0;L;;;;;N;;;;;
+12126;CUNEIFORM SIGN GUR7;Lo;0;L;;;;;N;;;;;
+12127;CUNEIFORM SIGN GURUN;Lo;0;L;;;;;N;;;;;
+12128;CUNEIFORM SIGN GURUSH;Lo;0;L;;;;;N;;;;;
+12129;CUNEIFORM SIGN HA;Lo;0;L;;;;;N;;;;;
+1212A;CUNEIFORM SIGN HA TENU;Lo;0;L;;;;;N;;;;;
+1212B;CUNEIFORM SIGN HA GUNU;Lo;0;L;;;;;N;;;;;
+1212C;CUNEIFORM SIGN HAL;Lo;0;L;;;;;N;;;;;
+1212D;CUNEIFORM SIGN HI;Lo;0;L;;;;;N;;;;;
+1212E;CUNEIFORM SIGN HI TIMES ASH;Lo;0;L;;;;;N;;;;;
+1212F;CUNEIFORM SIGN HI TIMES ASH2;Lo;0;L;;;;;N;;;;;
+12130;CUNEIFORM SIGN HI TIMES BAD;Lo;0;L;;;;;N;;;;;
+12131;CUNEIFORM SIGN HI TIMES DISH;Lo;0;L;;;;;N;;;;;
+12132;CUNEIFORM SIGN HI TIMES GAD;Lo;0;L;;;;;N;;;;;
+12133;CUNEIFORM SIGN HI TIMES KIN;Lo;0;L;;;;;N;;;;;
+12134;CUNEIFORM SIGN HI TIMES NUN;Lo;0;L;;;;;N;;;;;
+12135;CUNEIFORM SIGN HI TIMES SHE;Lo;0;L;;;;;N;;;;;
+12136;CUNEIFORM SIGN HI TIMES U;Lo;0;L;;;;;N;;;;;
+12137;CUNEIFORM SIGN HU;Lo;0;L;;;;;N;;;;;
+12138;CUNEIFORM SIGN HUB2;Lo;0;L;;;;;N;;;;;
+12139;CUNEIFORM SIGN HUB2 TIMES AN;Lo;0;L;;;;;N;;;;;
+1213A;CUNEIFORM SIGN HUB2 TIMES HAL;Lo;0;L;;;;;N;;;;;
+1213B;CUNEIFORM SIGN HUB2 TIMES KASKAL;Lo;0;L;;;;;N;;;;;
+1213C;CUNEIFORM SIGN HUB2 TIMES LISH;Lo;0;L;;;;;N;;;;;
+1213D;CUNEIFORM SIGN HUB2 TIMES UD;Lo;0;L;;;;;N;;;;;
+1213E;CUNEIFORM SIGN HUL2;Lo;0;L;;;;;N;;;;;
+1213F;CUNEIFORM SIGN I;Lo;0;L;;;;;N;;;;;
+12140;CUNEIFORM SIGN I A;Lo;0;L;;;;;N;;;;;
+12141;CUNEIFORM SIGN IB;Lo;0;L;;;;;N;;;;;
+12142;CUNEIFORM SIGN IDIM;Lo;0;L;;;;;N;;;;;
+12143;CUNEIFORM SIGN IDIM OVER IDIM BUR;Lo;0;L;;;;;N;;;;;
+12144;CUNEIFORM SIGN IDIM OVER IDIM SQUARED;Lo;0;L;;;;;N;;;;;
+12145;CUNEIFORM SIGN IG;Lo;0;L;;;;;N;;;;;
+12146;CUNEIFORM SIGN IGI;Lo;0;L;;;;;N;;;;;
+12147;CUNEIFORM SIGN IGI DIB;Lo;0;L;;;;;N;;;;;
+12148;CUNEIFORM SIGN IGI RI;Lo;0;L;;;;;N;;;;;
+12149;CUNEIFORM SIGN IGI OVER IGI SHIR OVER SHIR UD OVER UD;Lo;0;L;;;;;N;;;;;
+1214A;CUNEIFORM SIGN IGI GUNU;Lo;0;L;;;;;N;;;;;
+1214B;CUNEIFORM SIGN IL;Lo;0;L;;;;;N;;;;;
+1214C;CUNEIFORM SIGN IL TIMES GAN2 TENU;Lo;0;L;;;;;N;;;;;
+1214D;CUNEIFORM SIGN IL2;Lo;0;L;;;;;N;;;;;
+1214E;CUNEIFORM SIGN IM;Lo;0;L;;;;;N;;;;;
+1214F;CUNEIFORM SIGN IM TIMES TAK4;Lo;0;L;;;;;N;;;;;
+12150;CUNEIFORM SIGN IM CROSSING IM;Lo;0;L;;;;;N;;;;;
+12151;CUNEIFORM SIGN IM OPPOSING IM;Lo;0;L;;;;;N;;;;;
+12152;CUNEIFORM SIGN IM SQUARED;Lo;0;L;;;;;N;;;;;
+12153;CUNEIFORM SIGN IMIN;Lo;0;L;;;;;N;;;;;
+12154;CUNEIFORM SIGN IN;Lo;0;L;;;;;N;;;;;
+12155;CUNEIFORM SIGN IR;Lo;0;L;;;;;N;;;;;
+12156;CUNEIFORM SIGN ISH;Lo;0;L;;;;;N;;;;;
+12157;CUNEIFORM SIGN KA;Lo;0;L;;;;;N;;;;;
+12158;CUNEIFORM SIGN KA TIMES A;Lo;0;L;;;;;N;;;;;
+12159;CUNEIFORM SIGN KA TIMES AD;Lo;0;L;;;;;N;;;;;
+1215A;CUNEIFORM SIGN KA TIMES AD PLUS KU3;Lo;0;L;;;;;N;;;;;
+1215B;CUNEIFORM SIGN KA TIMES ASH2;Lo;0;L;;;;;N;;;;;
+1215C;CUNEIFORM SIGN KA TIMES BAD;Lo;0;L;;;;;N;;;;;
+1215D;CUNEIFORM SIGN KA TIMES BALAG;Lo;0;L;;;;;N;;;;;
+1215E;CUNEIFORM SIGN KA TIMES BAR;Lo;0;L;;;;;N;;;;;
+1215F;CUNEIFORM SIGN KA TIMES BI;Lo;0;L;;;;;N;;;;;
+12160;CUNEIFORM SIGN KA TIMES ERIN2;Lo;0;L;;;;;N;;;;;
+12161;CUNEIFORM SIGN KA TIMES ESH2;Lo;0;L;;;;;N;;;;;
+12162;CUNEIFORM SIGN KA TIMES GA;Lo;0;L;;;;;N;;;;;
+12163;CUNEIFORM SIGN KA TIMES GAL;Lo;0;L;;;;;N;;;;;
+12164;CUNEIFORM SIGN KA TIMES GAN2 TENU;Lo;0;L;;;;;N;;;;;
+12165;CUNEIFORM SIGN KA TIMES GAR;Lo;0;L;;;;;N;;;;;
+12166;CUNEIFORM SIGN KA TIMES GAR PLUS SHA3 PLUS A;Lo;0;L;;;;;N;;;;;
+12167;CUNEIFORM SIGN KA TIMES GI;Lo;0;L;;;;;N;;;;;
+12168;CUNEIFORM SIGN KA TIMES GIR2;Lo;0;L;;;;;N;;;;;
+12169;CUNEIFORM SIGN KA TIMES GISH PLUS SAR;Lo;0;L;;;;;N;;;;;
+1216A;CUNEIFORM SIGN KA TIMES GISH CROSSING GISH;Lo;0;L;;;;;N;;;;;
+1216B;CUNEIFORM SIGN KA TIMES GU;Lo;0;L;;;;;N;;;;;
+1216C;CUNEIFORM SIGN KA TIMES GUR7;Lo;0;L;;;;;N;;;;;
+1216D;CUNEIFORM SIGN KA TIMES IGI;Lo;0;L;;;;;N;;;;;
+1216E;CUNEIFORM SIGN KA TIMES IM;Lo;0;L;;;;;N;;;;;
+1216F;CUNEIFORM SIGN KA TIMES KAK;Lo;0;L;;;;;N;;;;;
+12170;CUNEIFORM SIGN KA TIMES KI;Lo;0;L;;;;;N;;;;;
+12171;CUNEIFORM SIGN KA TIMES KID;Lo;0;L;;;;;N;;;;;
+12172;CUNEIFORM SIGN KA TIMES LI;Lo;0;L;;;;;N;;;;;
+12173;CUNEIFORM SIGN KA TIMES LU;Lo;0;L;;;;;N;;;;;
+12174;CUNEIFORM SIGN KA TIMES ME;Lo;0;L;;;;;N;;;;;
+12175;CUNEIFORM SIGN KA TIMES ME PLUS DU;Lo;0;L;;;;;N;;;;;
+12176;CUNEIFORM SIGN KA TIMES ME PLUS GI;Lo;0;L;;;;;N;;;;;
+12177;CUNEIFORM SIGN KA TIMES ME PLUS TE;Lo;0;L;;;;;N;;;;;
+12178;CUNEIFORM SIGN KA TIMES MI;Lo;0;L;;;;;N;;;;;
+12179;CUNEIFORM SIGN KA TIMES MI PLUS NUNUZ;Lo;0;L;;;;;N;;;;;
+1217A;CUNEIFORM SIGN KA TIMES NE;Lo;0;L;;;;;N;;;;;
+1217B;CUNEIFORM SIGN KA TIMES NUN;Lo;0;L;;;;;N;;;;;
+1217C;CUNEIFORM SIGN KA TIMES PI;Lo;0;L;;;;;N;;;;;
+1217D;CUNEIFORM SIGN KA TIMES RU;Lo;0;L;;;;;N;;;;;
+1217E;CUNEIFORM SIGN KA TIMES SA;Lo;0;L;;;;;N;;;;;
+1217F;CUNEIFORM SIGN KA TIMES SAR;Lo;0;L;;;;;N;;;;;
+12180;CUNEIFORM SIGN KA TIMES SHA;Lo;0;L;;;;;N;;;;;
+12181;CUNEIFORM SIGN KA TIMES SHE;Lo;0;L;;;;;N;;;;;
+12182;CUNEIFORM SIGN KA TIMES SHID;Lo;0;L;;;;;N;;;;;
+12183;CUNEIFORM SIGN KA TIMES SHU;Lo;0;L;;;;;N;;;;;
+12184;CUNEIFORM SIGN KA TIMES SIG;Lo;0;L;;;;;N;;;;;
+12185;CUNEIFORM SIGN KA TIMES SUHUR;Lo;0;L;;;;;N;;;;;
+12186;CUNEIFORM SIGN KA TIMES TAR;Lo;0;L;;;;;N;;;;;
+12187;CUNEIFORM SIGN KA TIMES U;Lo;0;L;;;;;N;;;;;
+12188;CUNEIFORM SIGN KA TIMES U2;Lo;0;L;;;;;N;;;;;
+12189;CUNEIFORM SIGN KA TIMES UD;Lo;0;L;;;;;N;;;;;
+1218A;CUNEIFORM SIGN KA TIMES UMUM TIMES PA;Lo;0;L;;;;;N;;;;;
+1218B;CUNEIFORM SIGN KA TIMES USH;Lo;0;L;;;;;N;;;;;
+1218C;CUNEIFORM SIGN KA TIMES ZI;Lo;0;L;;;;;N;;;;;
+1218D;CUNEIFORM SIGN KA2;Lo;0;L;;;;;N;;;;;
+1218E;CUNEIFORM SIGN KA2 CROSSING KA2;Lo;0;L;;;;;N;;;;;
+1218F;CUNEIFORM SIGN KAB;Lo;0;L;;;;;N;;;;;
+12190;CUNEIFORM SIGN KAD2;Lo;0;L;;;;;N;;;;;
+12191;CUNEIFORM SIGN KAD3;Lo;0;L;;;;;N;;;;;
+12192;CUNEIFORM SIGN KAD4;Lo;0;L;;;;;N;;;;;
+12193;CUNEIFORM SIGN KAD5;Lo;0;L;;;;;N;;;;;
+12194;CUNEIFORM SIGN KAD5 OVER KAD5;Lo;0;L;;;;;N;;;;;
+12195;CUNEIFORM SIGN KAK;Lo;0;L;;;;;N;;;;;
+12196;CUNEIFORM SIGN KAK TIMES IGI GUNU;Lo;0;L;;;;;N;;;;;
+12197;CUNEIFORM SIGN KAL;Lo;0;L;;;;;N;;;;;
+12198;CUNEIFORM SIGN KAL TIMES BAD;Lo;0;L;;;;;N;;;;;
+12199;CUNEIFORM SIGN KAL CROSSING KAL;Lo;0;L;;;;;N;;;;;
+1219A;CUNEIFORM SIGN KAM2;Lo;0;L;;;;;N;;;;;
+1219B;CUNEIFORM SIGN KAM4;Lo;0;L;;;;;N;;;;;
+1219C;CUNEIFORM SIGN KASKAL;Lo;0;L;;;;;N;;;;;
+1219D;CUNEIFORM SIGN KASKAL LAGAB TIMES U OVER LAGAB TIMES U;Lo;0;L;;;;;N;;;;;
+1219E;CUNEIFORM SIGN KASKAL OVER KASKAL LAGAB TIMES U OVER LAGAB TIMES U;Lo;0;L;;;;;N;;;;;
+1219F;CUNEIFORM SIGN KESH2;Lo;0;L;;;;;N;;;;;
+121A0;CUNEIFORM SIGN KI;Lo;0;L;;;;;N;;;;;
+121A1;CUNEIFORM SIGN KI TIMES BAD;Lo;0;L;;;;;N;;;;;
+121A2;CUNEIFORM SIGN KI TIMES U;Lo;0;L;;;;;N;;;;;
+121A3;CUNEIFORM SIGN KI TIMES UD;Lo;0;L;;;;;N;;;;;
+121A4;CUNEIFORM SIGN KID;Lo;0;L;;;;;N;;;;;
+121A5;CUNEIFORM SIGN KIN;Lo;0;L;;;;;N;;;;;
+121A6;CUNEIFORM SIGN KISAL;Lo;0;L;;;;;N;;;;;
+121A7;CUNEIFORM SIGN KISH;Lo;0;L;;;;;N;;;;;
+121A8;CUNEIFORM SIGN KISIM5;Lo;0;L;;;;;N;;;;;
+121A9;CUNEIFORM SIGN KISIM5 OVER KISIM5;Lo;0;L;;;;;N;;;;;
+121AA;CUNEIFORM SIGN KU;Lo;0;L;;;;;N;;;;;
+121AB;CUNEIFORM SIGN KU OVER HI TIMES ASH2 KU OVER HI TIMES ASH2;Lo;0;L;;;;;N;;;;;
+121AC;CUNEIFORM SIGN KU3;Lo;0;L;;;;;N;;;;;
+121AD;CUNEIFORM SIGN KU4;Lo;0;L;;;;;N;;;;;
+121AE;CUNEIFORM SIGN KU4 VARIANT FORM;Lo;0;L;;;;;N;;;;;
+121AF;CUNEIFORM SIGN KU7;Lo;0;L;;;;;N;;;;;
+121B0;CUNEIFORM SIGN KUL;Lo;0;L;;;;;N;;;;;
+121B1;CUNEIFORM SIGN KUL GUNU;Lo;0;L;;;;;N;;;;;
+121B2;CUNEIFORM SIGN KUN;Lo;0;L;;;;;N;;;;;
+121B3;CUNEIFORM SIGN KUR;Lo;0;L;;;;;N;;;;;
+121B4;CUNEIFORM SIGN KUR OPPOSING KUR;Lo;0;L;;;;;N;;;;;
+121B5;CUNEIFORM SIGN KUSHU2;Lo;0;L;;;;;N;;;;;
+121B6;CUNEIFORM SIGN KWU318;Lo;0;L;;;;;N;;;;;
+121B7;CUNEIFORM SIGN LA;Lo;0;L;;;;;N;;;;;
+121B8;CUNEIFORM SIGN LAGAB;Lo;0;L;;;;;N;;;;;
+121B9;CUNEIFORM SIGN LAGAB TIMES A;Lo;0;L;;;;;N;;;;;
+121BA;CUNEIFORM SIGN LAGAB TIMES A PLUS DA PLUS HA;Lo;0;L;;;;;N;;;;;
+121BB;CUNEIFORM SIGN LAGAB TIMES A PLUS GAR;Lo;0;L;;;;;N;;;;;
+121BC;CUNEIFORM SIGN LAGAB TIMES A PLUS LAL;Lo;0;L;;;;;N;;;;;
+121BD;CUNEIFORM SIGN LAGAB TIMES AL;Lo;0;L;;;;;N;;;;;
+121BE;CUNEIFORM SIGN LAGAB TIMES AN;Lo;0;L;;;;;N;;;;;
+121BF;CUNEIFORM SIGN LAGAB TIMES ASH ZIDA TENU;Lo;0;L;;;;;N;;;;;
+121C0;CUNEIFORM SIGN LAGAB TIMES BAD;Lo;0;L;;;;;N;;;;;
+121C1;CUNEIFORM SIGN LAGAB TIMES BI;Lo;0;L;;;;;N;;;;;
+121C2;CUNEIFORM SIGN LAGAB TIMES DAR;Lo;0;L;;;;;N;;;;;
+121C3;CUNEIFORM SIGN LAGAB TIMES EN;Lo;0;L;;;;;N;;;;;
+121C4;CUNEIFORM SIGN LAGAB TIMES GA;Lo;0;L;;;;;N;;;;;
+121C5;CUNEIFORM SIGN LAGAB TIMES GAR;Lo;0;L;;;;;N;;;;;
+121C6;CUNEIFORM SIGN LAGAB TIMES GUD;Lo;0;L;;;;;N;;;;;
+121C7;CUNEIFORM SIGN LAGAB TIMES GUD PLUS GUD;Lo;0;L;;;;;N;;;;;
+121C8;CUNEIFORM SIGN LAGAB TIMES HA;Lo;0;L;;;;;N;;;;;
+121C9;CUNEIFORM SIGN LAGAB TIMES HAL;Lo;0;L;;;;;N;;;;;
+121CA;CUNEIFORM SIGN LAGAB TIMES HI TIMES NUN;Lo;0;L;;;;;N;;;;;
+121CB;CUNEIFORM SIGN LAGAB TIMES IGI GUNU;Lo;0;L;;;;;N;;;;;
+121CC;CUNEIFORM SIGN LAGAB TIMES IM;Lo;0;L;;;;;N;;;;;
+121CD;CUNEIFORM SIGN LAGAB TIMES IM PLUS HA;Lo;0;L;;;;;N;;;;;
+121CE;CUNEIFORM SIGN LAGAB TIMES IM PLUS LU;Lo;0;L;;;;;N;;;;;
+121CF;CUNEIFORM SIGN LAGAB TIMES KI;Lo;0;L;;;;;N;;;;;
+121D0;CUNEIFORM SIGN LAGAB TIMES KIN;Lo;0;L;;;;;N;;;;;
+121D1;CUNEIFORM SIGN LAGAB TIMES KU3;Lo;0;L;;;;;N;;;;;
+121D2;CUNEIFORM SIGN LAGAB TIMES KUL;Lo;0;L;;;;;N;;;;;
+121D3;CUNEIFORM SIGN LAGAB TIMES KUL PLUS HI PLUS A;Lo;0;L;;;;;N;;;;;
+121D4;CUNEIFORM SIGN LAGAB TIMES LAGAB;Lo;0;L;;;;;N;;;;;
+121D5;CUNEIFORM SIGN LAGAB TIMES LISH;Lo;0;L;;;;;N;;;;;
+121D6;CUNEIFORM SIGN LAGAB TIMES LU;Lo;0;L;;;;;N;;;;;
+121D7;CUNEIFORM SIGN LAGAB TIMES LUL;Lo;0;L;;;;;N;;;;;
+121D8;CUNEIFORM SIGN LAGAB TIMES ME;Lo;0;L;;;;;N;;;;;
+121D9;CUNEIFORM SIGN LAGAB TIMES ME PLUS EN;Lo;0;L;;;;;N;;;;;
+121DA;CUNEIFORM SIGN LAGAB TIMES MUSH;Lo;0;L;;;;;N;;;;;
+121DB;CUNEIFORM SIGN LAGAB TIMES NE;Lo;0;L;;;;;N;;;;;
+121DC;CUNEIFORM SIGN LAGAB TIMES SHE PLUS SUM;Lo;0;L;;;;;N;;;;;
+121DD;CUNEIFORM SIGN LAGAB TIMES SHITA PLUS GISH PLUS ERIN2;Lo;0;L;;;;;N;;;;;
+121DE;CUNEIFORM SIGN LAGAB TIMES SHITA PLUS GISH TENU;Lo;0;L;;;;;N;;;;;
+121DF;CUNEIFORM SIGN LAGAB TIMES SHU2;Lo;0;L;;;;;N;;;;;
+121E0;CUNEIFORM SIGN LAGAB TIMES SHU2 PLUS SHU2;Lo;0;L;;;;;N;;;;;
+121E1;CUNEIFORM SIGN LAGAB TIMES SUM;Lo;0;L;;;;;N;;;;;
+121E2;CUNEIFORM SIGN LAGAB TIMES TAG;Lo;0;L;;;;;N;;;;;
+121E3;CUNEIFORM SIGN LAGAB TIMES TAK4;Lo;0;L;;;;;N;;;;;
+121E4;CUNEIFORM SIGN LAGAB TIMES TE PLUS A PLUS SU PLUS NA;Lo;0;L;;;;;N;;;;;
+121E5;CUNEIFORM SIGN LAGAB TIMES U;Lo;0;L;;;;;N;;;;;
+121E6;CUNEIFORM SIGN LAGAB TIMES U PLUS A;Lo;0;L;;;;;N;;;;;
+121E7;CUNEIFORM SIGN LAGAB TIMES U PLUS U PLUS U;Lo;0;L;;;;;N;;;;;
+121E8;CUNEIFORM SIGN LAGAB TIMES U2 PLUS ASH;Lo;0;L;;;;;N;;;;;
+121E9;CUNEIFORM SIGN LAGAB TIMES UD;Lo;0;L;;;;;N;;;;;
+121EA;CUNEIFORM SIGN LAGAB TIMES USH;Lo;0;L;;;;;N;;;;;
+121EB;CUNEIFORM SIGN LAGAB SQUARED;Lo;0;L;;;;;N;;;;;
+121EC;CUNEIFORM SIGN LAGAR;Lo;0;L;;;;;N;;;;;
+121ED;CUNEIFORM SIGN LAGAR TIMES SHE;Lo;0;L;;;;;N;;;;;
+121EE;CUNEIFORM SIGN LAGAR TIMES SHE PLUS SUM;Lo;0;L;;;;;N;;;;;
+121EF;CUNEIFORM SIGN LAGAR GUNU;Lo;0;L;;;;;N;;;;;
+121F0;CUNEIFORM SIGN LAGAR GUNU OVER LAGAR GUNU SHE;Lo;0;L;;;;;N;;;;;
+121F1;CUNEIFORM SIGN LAHSHU;Lo;0;L;;;;;N;;;;;
+121F2;CUNEIFORM SIGN LAL;Lo;0;L;;;;;N;;;;;
+121F3;CUNEIFORM SIGN LAL TIMES LAL;Lo;0;L;;;;;N;;;;;
+121F4;CUNEIFORM SIGN LAM;Lo;0;L;;;;;N;;;;;
+121F5;CUNEIFORM SIGN LAM TIMES KUR;Lo;0;L;;;;;N;;;;;
+121F6;CUNEIFORM SIGN LAM TIMES KUR PLUS RU;Lo;0;L;;;;;N;;;;;
+121F7;CUNEIFORM SIGN LI;Lo;0;L;;;;;N;;;;;
+121F8;CUNEIFORM SIGN LIL;Lo;0;L;;;;;N;;;;;
+121F9;CUNEIFORM SIGN LIMMU2;Lo;0;L;;;;;N;;;;;
+121FA;CUNEIFORM SIGN LISH;Lo;0;L;;;;;N;;;;;
+121FB;CUNEIFORM SIGN LU;Lo;0;L;;;;;N;;;;;
+121FC;CUNEIFORM SIGN LU TIMES BAD;Lo;0;L;;;;;N;;;;;
+121FD;CUNEIFORM SIGN LU2;Lo;0;L;;;;;N;;;;;
+121FE;CUNEIFORM SIGN LU2 TIMES AL;Lo;0;L;;;;;N;;;;;
+121FF;CUNEIFORM SIGN LU2 TIMES BAD;Lo;0;L;;;;;N;;;;;
+12200;CUNEIFORM SIGN LU2 TIMES ESH2;Lo;0;L;;;;;N;;;;;
+12201;CUNEIFORM SIGN LU2 TIMES ESH2 TENU;Lo;0;L;;;;;N;;;;;
+12202;CUNEIFORM SIGN LU2 TIMES GAN2 TENU;Lo;0;L;;;;;N;;;;;
+12203;CUNEIFORM SIGN LU2 TIMES HI TIMES BAD;Lo;0;L;;;;;N;;;;;
+12204;CUNEIFORM SIGN LU2 TIMES IM;Lo;0;L;;;;;N;;;;;
+12205;CUNEIFORM SIGN LU2 TIMES KAD2;Lo;0;L;;;;;N;;;;;
+12206;CUNEIFORM SIGN LU2 TIMES KAD3;Lo;0;L;;;;;N;;;;;
+12207;CUNEIFORM SIGN LU2 TIMES KAD3 PLUS ASH;Lo;0;L;;;;;N;;;;;
+12208;CUNEIFORM SIGN LU2 TIMES KI;Lo;0;L;;;;;N;;;;;
+12209;CUNEIFORM SIGN LU2 TIMES LA PLUS ASH;Lo;0;L;;;;;N;;;;;
+1220A;CUNEIFORM SIGN LU2 TIMES LAGAB;Lo;0;L;;;;;N;;;;;
+1220B;CUNEIFORM SIGN LU2 TIMES ME PLUS EN;Lo;0;L;;;;;N;;;;;
+1220C;CUNEIFORM SIGN LU2 TIMES NE;Lo;0;L;;;;;N;;;;;
+1220D;CUNEIFORM SIGN LU2 TIMES NU;Lo;0;L;;;;;N;;;;;
+1220E;CUNEIFORM SIGN LU2 TIMES SI PLUS ASH;Lo;0;L;;;;;N;;;;;
+1220F;CUNEIFORM SIGN LU2 TIMES SIK2 PLUS BU;Lo;0;L;;;;;N;;;;;
+12210;CUNEIFORM SIGN LU2 TIMES TUG2;Lo;0;L;;;;;N;;;;;
+12211;CUNEIFORM SIGN LU2 TENU;Lo;0;L;;;;;N;;;;;
+12212;CUNEIFORM SIGN LU2 CROSSING LU2;Lo;0;L;;;;;N;;;;;
+12213;CUNEIFORM SIGN LU2 OPPOSING LU2;Lo;0;L;;;;;N;;;;;
+12214;CUNEIFORM SIGN LU2 SQUARED;Lo;0;L;;;;;N;;;;;
+12215;CUNEIFORM SIGN LU2 SHESHIG;Lo;0;L;;;;;N;;;;;
+12216;CUNEIFORM SIGN LU3;Lo;0;L;;;;;N;;;;;
+12217;CUNEIFORM SIGN LUGAL;Lo;0;L;;;;;N;;;;;
+12218;CUNEIFORM SIGN LUGAL OVER LUGAL;Lo;0;L;;;;;N;;;;;
+12219;CUNEIFORM SIGN LUGAL OPPOSING LUGAL;Lo;0;L;;;;;N;;;;;
+1221A;CUNEIFORM SIGN LUGAL SHESHIG;Lo;0;L;;;;;N;;;;;
+1221B;CUNEIFORM SIGN LUH;Lo;0;L;;;;;N;;;;;
+1221C;CUNEIFORM SIGN LUL;Lo;0;L;;;;;N;;;;;
+1221D;CUNEIFORM SIGN LUM;Lo;0;L;;;;;N;;;;;
+1221E;CUNEIFORM SIGN LUM OVER LUM;Lo;0;L;;;;;N;;;;;
+1221F;CUNEIFORM SIGN LUM OVER LUM GAR OVER GAR;Lo;0;L;;;;;N;;;;;
+12220;CUNEIFORM SIGN MA;Lo;0;L;;;;;N;;;;;
+12221;CUNEIFORM SIGN MA TIMES TAK4;Lo;0;L;;;;;N;;;;;
+12222;CUNEIFORM SIGN MA GUNU;Lo;0;L;;;;;N;;;;;
+12223;CUNEIFORM SIGN MA2;Lo;0;L;;;;;N;;;;;
+12224;CUNEIFORM SIGN MAH;Lo;0;L;;;;;N;;;;;
+12225;CUNEIFORM SIGN MAR;Lo;0;L;;;;;N;;;;;
+12226;CUNEIFORM SIGN MASH;Lo;0;L;;;;;N;;;;;
+12227;CUNEIFORM SIGN MASH2;Lo;0;L;;;;;N;;;;;
+12228;CUNEIFORM SIGN ME;Lo;0;L;;;;;N;;;;;
+12229;CUNEIFORM SIGN MES;Lo;0;L;;;;;N;;;;;
+1222A;CUNEIFORM SIGN MI;Lo;0;L;;;;;N;;;;;
+1222B;CUNEIFORM SIGN MIN;Lo;0;L;;;;;N;;;;;
+1222C;CUNEIFORM SIGN MU;Lo;0;L;;;;;N;;;;;
+1222D;CUNEIFORM SIGN MU OVER MU;Lo;0;L;;;;;N;;;;;
+1222E;CUNEIFORM SIGN MUG;Lo;0;L;;;;;N;;;;;
+1222F;CUNEIFORM SIGN MUG GUNU;Lo;0;L;;;;;N;;;;;
+12230;CUNEIFORM SIGN MUNSUB;Lo;0;L;;;;;N;;;;;
+12231;CUNEIFORM SIGN MURGU2;Lo;0;L;;;;;N;;;;;
+12232;CUNEIFORM SIGN MUSH;Lo;0;L;;;;;N;;;;;
+12233;CUNEIFORM SIGN MUSH TIMES A;Lo;0;L;;;;;N;;;;;
+12234;CUNEIFORM SIGN MUSH TIMES KUR;Lo;0;L;;;;;N;;;;;
+12235;CUNEIFORM SIGN MUSH TIMES ZA;Lo;0;L;;;;;N;;;;;
+12236;CUNEIFORM SIGN MUSH OVER MUSH;Lo;0;L;;;;;N;;;;;
+12237;CUNEIFORM SIGN MUSH OVER MUSH TIMES A PLUS NA;Lo;0;L;;;;;N;;;;;
+12238;CUNEIFORM SIGN MUSH CROSSING MUSH;Lo;0;L;;;;;N;;;;;
+12239;CUNEIFORM SIGN MUSH3;Lo;0;L;;;;;N;;;;;
+1223A;CUNEIFORM SIGN MUSH3 TIMES A;Lo;0;L;;;;;N;;;;;
+1223B;CUNEIFORM SIGN MUSH3 TIMES A PLUS DI;Lo;0;L;;;;;N;;;;;
+1223C;CUNEIFORM SIGN MUSH3 TIMES DI;Lo;0;L;;;;;N;;;;;
+1223D;CUNEIFORM SIGN MUSH3 GUNU;Lo;0;L;;;;;N;;;;;
+1223E;CUNEIFORM SIGN NA;Lo;0;L;;;;;N;;;;;
+1223F;CUNEIFORM SIGN NA2;Lo;0;L;;;;;N;;;;;
+12240;CUNEIFORM SIGN NAGA;Lo;0;L;;;;;N;;;;;
+12241;CUNEIFORM SIGN NAGA INVERTED;Lo;0;L;;;;;N;;;;;
+12242;CUNEIFORM SIGN NAGA TIMES SHU TENU;Lo;0;L;;;;;N;;;;;
+12243;CUNEIFORM SIGN NAGA OPPOSING NAGA;Lo;0;L;;;;;N;;;;;
+12244;CUNEIFORM SIGN NAGAR;Lo;0;L;;;;;N;;;;;
+12245;CUNEIFORM SIGN NAM NUTILLU;Lo;0;L;;;;;N;;;;;
+12246;CUNEIFORM SIGN NAM;Lo;0;L;;;;;N;;;;;
+12247;CUNEIFORM SIGN NAM2;Lo;0;L;;;;;N;;;;;
+12248;CUNEIFORM SIGN NE;Lo;0;L;;;;;N;;;;;
+12249;CUNEIFORM SIGN NE TIMES A;Lo;0;L;;;;;N;;;;;
+1224A;CUNEIFORM SIGN NE TIMES UD;Lo;0;L;;;;;N;;;;;
+1224B;CUNEIFORM SIGN NE SHESHIG;Lo;0;L;;;;;N;;;;;
+1224C;CUNEIFORM SIGN NI;Lo;0;L;;;;;N;;;;;
+1224D;CUNEIFORM SIGN NI TIMES E;Lo;0;L;;;;;N;;;;;
+1224E;CUNEIFORM SIGN NI2;Lo;0;L;;;;;N;;;;;
+1224F;CUNEIFORM SIGN NIM;Lo;0;L;;;;;N;;;;;
+12250;CUNEIFORM SIGN NIM TIMES GAN2 TENU;Lo;0;L;;;;;N;;;;;
+12251;CUNEIFORM SIGN NIM TIMES GAR PLUS GAN2 TENU;Lo;0;L;;;;;N;;;;;
+12252;CUNEIFORM SIGN NINDA2;Lo;0;L;;;;;N;;;;;
+12253;CUNEIFORM SIGN NINDA2 TIMES AN;Lo;0;L;;;;;N;;;;;
+12254;CUNEIFORM SIGN NINDA2 TIMES ASH;Lo;0;L;;;;;N;;;;;
+12255;CUNEIFORM SIGN NINDA2 TIMES ASH PLUS ASH;Lo;0;L;;;;;N;;;;;
+12256;CUNEIFORM SIGN NINDA2 TIMES GUD;Lo;0;L;;;;;N;;;;;
+12257;CUNEIFORM SIGN NINDA2 TIMES ME PLUS GAN2 TENU;Lo;0;L;;;;;N;;;;;
+12258;CUNEIFORM SIGN NINDA2 TIMES NE;Lo;0;L;;;;;N;;;;;
+12259;CUNEIFORM SIGN NINDA2 TIMES NUN;Lo;0;L;;;;;N;;;;;
+1225A;CUNEIFORM SIGN NINDA2 TIMES SHE;Lo;0;L;;;;;N;;;;;
+1225B;CUNEIFORM SIGN NINDA2 TIMES SHE PLUS A AN;Lo;0;L;;;;;N;;;;;
+1225C;CUNEIFORM SIGN NINDA2 TIMES SHE PLUS ASH;Lo;0;L;;;;;N;;;;;
+1225D;CUNEIFORM SIGN NINDA2 TIMES SHE PLUS ASH PLUS ASH;Lo;0;L;;;;;N;;;;;
+1225E;CUNEIFORM SIGN NINDA2 TIMES U2 PLUS ASH;Lo;0;L;;;;;N;;;;;
+1225F;CUNEIFORM SIGN NINDA2 TIMES USH;Lo;0;L;;;;;N;;;;;
+12260;CUNEIFORM SIGN NISAG;Lo;0;L;;;;;N;;;;;
+12261;CUNEIFORM SIGN NU;Lo;0;L;;;;;N;;;;;
+12262;CUNEIFORM SIGN NU11;Lo;0;L;;;;;N;;;;;
+12263;CUNEIFORM SIGN NUN;Lo;0;L;;;;;N;;;;;
+12264;CUNEIFORM SIGN NUN LAGAR TIMES GAR;Lo;0;L;;;;;N;;;;;
+12265;CUNEIFORM SIGN NUN LAGAR TIMES MASH;Lo;0;L;;;;;N;;;;;
+12266;CUNEIFORM SIGN NUN LAGAR TIMES SAL;Lo;0;L;;;;;N;;;;;
+12267;CUNEIFORM SIGN NUN LAGAR TIMES SAL OVER NUN LAGAR TIMES SAL;Lo;0;L;;;;;N;;;;;
+12268;CUNEIFORM SIGN NUN LAGAR TIMES USH;Lo;0;L;;;;;N;;;;;
+12269;CUNEIFORM SIGN NUN TENU;Lo;0;L;;;;;N;;;;;
+1226A;CUNEIFORM SIGN NUN OVER NUN;Lo;0;L;;;;;N;;;;;
+1226B;CUNEIFORM SIGN NUN CROSSING NUN;Lo;0;L;;;;;N;;;;;
+1226C;CUNEIFORM SIGN NUN CROSSING NUN LAGAR OVER LAGAR;Lo;0;L;;;;;N;;;;;
+1226D;CUNEIFORM SIGN NUNUZ;Lo;0;L;;;;;N;;;;;
+1226E;CUNEIFORM SIGN NUNUZ AB2 TIMES ASHGAB;Lo;0;L;;;;;N;;;;;
+1226F;CUNEIFORM SIGN NUNUZ AB2 TIMES BI;Lo;0;L;;;;;N;;;;;
+12270;CUNEIFORM SIGN NUNUZ AB2 TIMES DUG;Lo;0;L;;;;;N;;;;;
+12271;CUNEIFORM SIGN NUNUZ AB2 TIMES GUD;Lo;0;L;;;;;N;;;;;
+12272;CUNEIFORM SIGN NUNUZ AB2 TIMES IGI GUNU;Lo;0;L;;;;;N;;;;;
+12273;CUNEIFORM SIGN NUNUZ AB2 TIMES KAD3;Lo;0;L;;;;;N;;;;;
+12274;CUNEIFORM SIGN NUNUZ AB2 TIMES LA;Lo;0;L;;;;;N;;;;;
+12275;CUNEIFORM SIGN NUNUZ AB2 TIMES NE;Lo;0;L;;;;;N;;;;;
+12276;CUNEIFORM SIGN NUNUZ AB2 TIMES SILA3;Lo;0;L;;;;;N;;;;;
+12277;CUNEIFORM SIGN NUNUZ AB2 TIMES U2;Lo;0;L;;;;;N;;;;;
+12278;CUNEIFORM SIGN NUNUZ KISIM5 TIMES BI;Lo;0;L;;;;;N;;;;;
+12279;CUNEIFORM SIGN NUNUZ KISIM5 TIMES BI U;Lo;0;L;;;;;N;;;;;
+1227A;CUNEIFORM SIGN PA;Lo;0;L;;;;;N;;;;;
+1227B;CUNEIFORM SIGN PAD;Lo;0;L;;;;;N;;;;;
+1227C;CUNEIFORM SIGN PAN;Lo;0;L;;;;;N;;;;;
+1227D;CUNEIFORM SIGN PAP;Lo;0;L;;;;;N;;;;;
+1227E;CUNEIFORM SIGN PESH2;Lo;0;L;;;;;N;;;;;
+1227F;CUNEIFORM SIGN PI;Lo;0;L;;;;;N;;;;;
+12280;CUNEIFORM SIGN PI TIMES A;Lo;0;L;;;;;N;;;;;
+12281;CUNEIFORM SIGN PI TIMES AB;Lo;0;L;;;;;N;;;;;
+12282;CUNEIFORM SIGN PI TIMES BI;Lo;0;L;;;;;N;;;;;
+12283;CUNEIFORM SIGN PI TIMES BU;Lo;0;L;;;;;N;;;;;
+12284;CUNEIFORM SIGN PI TIMES E;Lo;0;L;;;;;N;;;;;
+12285;CUNEIFORM SIGN PI TIMES I;Lo;0;L;;;;;N;;;;;
+12286;CUNEIFORM SIGN PI TIMES IB;Lo;0;L;;;;;N;;;;;
+12287;CUNEIFORM SIGN PI TIMES U;Lo;0;L;;;;;N;;;;;
+12288;CUNEIFORM SIGN PI TIMES U2;Lo;0;L;;;;;N;;;;;
+12289;CUNEIFORM SIGN PI CROSSING PI;Lo;0;L;;;;;N;;;;;
+1228A;CUNEIFORM SIGN PIRIG;Lo;0;L;;;;;N;;;;;
+1228B;CUNEIFORM SIGN PIRIG TIMES KAL;Lo;0;L;;;;;N;;;;;
+1228C;CUNEIFORM SIGN PIRIG TIMES UD;Lo;0;L;;;;;N;;;;;
+1228D;CUNEIFORM SIGN PIRIG TIMES ZA;Lo;0;L;;;;;N;;;;;
+1228E;CUNEIFORM SIGN PIRIG OPPOSING PIRIG;Lo;0;L;;;;;N;;;;;
+1228F;CUNEIFORM SIGN RA;Lo;0;L;;;;;N;;;;;
+12290;CUNEIFORM SIGN RAB;Lo;0;L;;;;;N;;;;;
+12291;CUNEIFORM SIGN RI;Lo;0;L;;;;;N;;;;;
+12292;CUNEIFORM SIGN RU;Lo;0;L;;;;;N;;;;;
+12293;CUNEIFORM SIGN SA;Lo;0;L;;;;;N;;;;;
+12294;CUNEIFORM SIGN SAG NUTILLU;Lo;0;L;;;;;N;;;;;
+12295;CUNEIFORM SIGN SAG;Lo;0;L;;;;;N;;;;;
+12296;CUNEIFORM SIGN SAG TIMES A;Lo;0;L;;;;;N;;;;;
+12297;CUNEIFORM SIGN SAG TIMES DU;Lo;0;L;;;;;N;;;;;
+12298;CUNEIFORM SIGN SAG TIMES DUB;Lo;0;L;;;;;N;;;;;
+12299;CUNEIFORM SIGN SAG TIMES HA;Lo;0;L;;;;;N;;;;;
+1229A;CUNEIFORM SIGN SAG TIMES KAK;Lo;0;L;;;;;N;;;;;
+1229B;CUNEIFORM SIGN SAG TIMES KUR;Lo;0;L;;;;;N;;;;;
+1229C;CUNEIFORM SIGN SAG TIMES LUM;Lo;0;L;;;;;N;;;;;
+1229D;CUNEIFORM SIGN SAG TIMES MI;Lo;0;L;;;;;N;;;;;
+1229E;CUNEIFORM SIGN SAG TIMES NUN;Lo;0;L;;;;;N;;;;;
+1229F;CUNEIFORM SIGN SAG TIMES SAL;Lo;0;L;;;;;N;;;;;
+122A0;CUNEIFORM SIGN SAG TIMES SHID;Lo;0;L;;;;;N;;;;;
+122A1;CUNEIFORM SIGN SAG TIMES TAB;Lo;0;L;;;;;N;;;;;
+122A2;CUNEIFORM SIGN SAG TIMES U2;Lo;0;L;;;;;N;;;;;
+122A3;CUNEIFORM SIGN SAG TIMES UB;Lo;0;L;;;;;N;;;;;
+122A4;CUNEIFORM SIGN SAG TIMES UM;Lo;0;L;;;;;N;;;;;
+122A5;CUNEIFORM SIGN SAG TIMES UR;Lo;0;L;;;;;N;;;;;
+122A6;CUNEIFORM SIGN SAG TIMES USH;Lo;0;L;;;;;N;;;;;
+122A7;CUNEIFORM SIGN SAG OVER SAG;Lo;0;L;;;;;N;;;;;
+122A8;CUNEIFORM SIGN SAG GUNU;Lo;0;L;;;;;N;;;;;
+122A9;CUNEIFORM SIGN SAL;Lo;0;L;;;;;N;;;;;
+122AA;CUNEIFORM SIGN SAL LAGAB TIMES ASH2;Lo;0;L;;;;;N;;;;;
+122AB;CUNEIFORM SIGN SANGA2;Lo;0;L;;;;;N;;;;;
+122AC;CUNEIFORM SIGN SAR;Lo;0;L;;;;;N;;;;;
+122AD;CUNEIFORM SIGN SHA;Lo;0;L;;;;;N;;;;;
+122AE;CUNEIFORM SIGN SHA3;Lo;0;L;;;;;N;;;;;
+122AF;CUNEIFORM SIGN SHA3 TIMES A;Lo;0;L;;;;;N;;;;;
+122B0;CUNEIFORM SIGN SHA3 TIMES BAD;Lo;0;L;;;;;N;;;;;
+122B1;CUNEIFORM SIGN SHA3 TIMES GISH;Lo;0;L;;;;;N;;;;;
+122B2;CUNEIFORM SIGN SHA3 TIMES NE;Lo;0;L;;;;;N;;;;;
+122B3;CUNEIFORM SIGN SHA3 TIMES SHU2;Lo;0;L;;;;;N;;;;;
+122B4;CUNEIFORM SIGN SHA3 TIMES TUR;Lo;0;L;;;;;N;;;;;
+122B5;CUNEIFORM SIGN SHA3 TIMES U;Lo;0;L;;;;;N;;;;;
+122B6;CUNEIFORM SIGN SHA3 TIMES U PLUS A;Lo;0;L;;;;;N;;;;;
+122B7;CUNEIFORM SIGN SHA6;Lo;0;L;;;;;N;;;;;
+122B8;CUNEIFORM SIGN SHAB6;Lo;0;L;;;;;N;;;;;
+122B9;CUNEIFORM SIGN SHAR2;Lo;0;L;;;;;N;;;;;
+122BA;CUNEIFORM SIGN SHE;Lo;0;L;;;;;N;;;;;
+122BB;CUNEIFORM SIGN SHE HU;Lo;0;L;;;;;N;;;;;
+122BC;CUNEIFORM SIGN SHE OVER SHE GAD OVER GAD GAR OVER GAR;Lo;0;L;;;;;N;;;;;
+122BD;CUNEIFORM SIGN SHE OVER SHE TAB OVER TAB GAR OVER GAR;Lo;0;L;;;;;N;;;;;
+122BE;CUNEIFORM SIGN SHEG9;Lo;0;L;;;;;N;;;;;
+122BF;CUNEIFORM SIGN SHEN;Lo;0;L;;;;;N;;;;;
+122C0;CUNEIFORM SIGN SHESH;Lo;0;L;;;;;N;;;;;
+122C1;CUNEIFORM SIGN SHESH2;Lo;0;L;;;;;N;;;;;
+122C2;CUNEIFORM SIGN SHESHLAM;Lo;0;L;;;;;N;;;;;
+122C3;CUNEIFORM SIGN SHID;Lo;0;L;;;;;N;;;;;
+122C4;CUNEIFORM SIGN SHID TIMES A;Lo;0;L;;;;;N;;;;;
+122C5;CUNEIFORM SIGN SHID TIMES IM;Lo;0;L;;;;;N;;;;;
+122C6;CUNEIFORM SIGN SHIM;Lo;0;L;;;;;N;;;;;
+122C7;CUNEIFORM SIGN SHIM TIMES A;Lo;0;L;;;;;N;;;;;
+122C8;CUNEIFORM SIGN SHIM TIMES BAL;Lo;0;L;;;;;N;;;;;
+122C9;CUNEIFORM SIGN SHIM TIMES BULUG;Lo;0;L;;;;;N;;;;;
+122CA;CUNEIFORM SIGN SHIM TIMES DIN;Lo;0;L;;;;;N;;;;;
+122CB;CUNEIFORM SIGN SHIM TIMES GAR;Lo;0;L;;;;;N;;;;;
+122CC;CUNEIFORM SIGN SHIM TIMES IGI;Lo;0;L;;;;;N;;;;;
+122CD;CUNEIFORM SIGN SHIM TIMES IGI GUNU;Lo;0;L;;;;;N;;;;;
+122CE;CUNEIFORM SIGN SHIM TIMES KUSHU2;Lo;0;L;;;;;N;;;;;
+122CF;CUNEIFORM SIGN SHIM TIMES LUL;Lo;0;L;;;;;N;;;;;
+122D0;CUNEIFORM SIGN SHIM TIMES MUG;Lo;0;L;;;;;N;;;;;
+122D1;CUNEIFORM SIGN SHIM TIMES SAL;Lo;0;L;;;;;N;;;;;
+122D2;CUNEIFORM SIGN SHINIG;Lo;0;L;;;;;N;;;;;
+122D3;CUNEIFORM SIGN SHIR;Lo;0;L;;;;;N;;;;;
+122D4;CUNEIFORM SIGN SHIR TENU;Lo;0;L;;;;;N;;;;;
+122D5;CUNEIFORM SIGN SHIR OVER SHIR BUR OVER BUR;Lo;0;L;;;;;N;;;;;
+122D6;CUNEIFORM SIGN SHITA;Lo;0;L;;;;;N;;;;;
+122D7;CUNEIFORM SIGN SHU;Lo;0;L;;;;;N;;;;;
+122D8;CUNEIFORM SIGN SHU OVER INVERTED SHU;Lo;0;L;;;;;N;;;;;
+122D9;CUNEIFORM SIGN SHU2;Lo;0;L;;;;;N;;;;;
+122DA;CUNEIFORM SIGN SHUBUR;Lo;0;L;;;;;N;;;;;
+122DB;CUNEIFORM SIGN SI;Lo;0;L;;;;;N;;;;;
+122DC;CUNEIFORM SIGN SI GUNU;Lo;0;L;;;;;N;;;;;
+122DD;CUNEIFORM SIGN SIG;Lo;0;L;;;;;N;;;;;
+122DE;CUNEIFORM SIGN SIG4;Lo;0;L;;;;;N;;;;;
+122DF;CUNEIFORM SIGN SIG4 OVER SIG4 SHU2;Lo;0;L;;;;;N;;;;;
+122E0;CUNEIFORM SIGN SIK2;Lo;0;L;;;;;N;;;;;
+122E1;CUNEIFORM SIGN SILA3;Lo;0;L;;;;;N;;;;;
+122E2;CUNEIFORM SIGN SU;Lo;0;L;;;;;N;;;;;
+122E3;CUNEIFORM SIGN SU OVER SU;Lo;0;L;;;;;N;;;;;
+122E4;CUNEIFORM SIGN SUD;Lo;0;L;;;;;N;;;;;
+122E5;CUNEIFORM SIGN SUD2;Lo;0;L;;;;;N;;;;;
+122E6;CUNEIFORM SIGN SUHUR;Lo;0;L;;;;;N;;;;;
+122E7;CUNEIFORM SIGN SUM;Lo;0;L;;;;;N;;;;;
+122E8;CUNEIFORM SIGN SUMASH;Lo;0;L;;;;;N;;;;;
+122E9;CUNEIFORM SIGN SUR;Lo;0;L;;;;;N;;;;;
+122EA;CUNEIFORM SIGN SUR9;Lo;0;L;;;;;N;;;;;
+122EB;CUNEIFORM SIGN TA;Lo;0;L;;;;;N;;;;;
+122EC;CUNEIFORM SIGN TA ASTERISK;Lo;0;L;;;;;N;;;;;
+122ED;CUNEIFORM SIGN TA TIMES HI;Lo;0;L;;;;;N;;;;;
+122EE;CUNEIFORM SIGN TA TIMES MI;Lo;0;L;;;;;N;;;;;
+122EF;CUNEIFORM SIGN TA GUNU;Lo;0;L;;;;;N;;;;;
+122F0;CUNEIFORM SIGN TAB;Lo;0;L;;;;;N;;;;;
+122F1;CUNEIFORM SIGN TAB OVER TAB NI OVER NI DISH OVER DISH;Lo;0;L;;;;;N;;;;;
+122F2;CUNEIFORM SIGN TAB SQUARED;Lo;0;L;;;;;N;;;;;
+122F3;CUNEIFORM SIGN TAG;Lo;0;L;;;;;N;;;;;
+122F4;CUNEIFORM SIGN TAG TIMES BI;Lo;0;L;;;;;N;;;;;
+122F5;CUNEIFORM SIGN TAG TIMES GUD;Lo;0;L;;;;;N;;;;;
+122F6;CUNEIFORM SIGN TAG TIMES SHE;Lo;0;L;;;;;N;;;;;
+122F7;CUNEIFORM SIGN TAG TIMES SHU;Lo;0;L;;;;;N;;;;;
+122F8;CUNEIFORM SIGN TAG TIMES TUG2;Lo;0;L;;;;;N;;;;;
+122F9;CUNEIFORM SIGN TAG TIMES UD;Lo;0;L;;;;;N;;;;;
+122FA;CUNEIFORM SIGN TAK4;Lo;0;L;;;;;N;;;;;
+122FB;CUNEIFORM SIGN TAR;Lo;0;L;;;;;N;;;;;
+122FC;CUNEIFORM SIGN TE;Lo;0;L;;;;;N;;;;;
+122FD;CUNEIFORM SIGN TE GUNU;Lo;0;L;;;;;N;;;;;
+122FE;CUNEIFORM SIGN TI;Lo;0;L;;;;;N;;;;;
+122FF;CUNEIFORM SIGN TI TENU;Lo;0;L;;;;;N;;;;;
+12300;CUNEIFORM SIGN TIL;Lo;0;L;;;;;N;;;;;
+12301;CUNEIFORM SIGN TIR;Lo;0;L;;;;;N;;;;;
+12302;CUNEIFORM SIGN TIR TIMES TAK4;Lo;0;L;;;;;N;;;;;
+12303;CUNEIFORM SIGN TIR OVER TIR;Lo;0;L;;;;;N;;;;;
+12304;CUNEIFORM SIGN TIR OVER TIR GAD OVER GAD GAR OVER GAR;Lo;0;L;;;;;N;;;;;
+12305;CUNEIFORM SIGN TU;Lo;0;L;;;;;N;;;;;
+12306;CUNEIFORM SIGN TUG2;Lo;0;L;;;;;N;;;;;
+12307;CUNEIFORM SIGN TUK;Lo;0;L;;;;;N;;;;;
+12308;CUNEIFORM SIGN TUM;Lo;0;L;;;;;N;;;;;
+12309;CUNEIFORM SIGN TUR;Lo;0;L;;;;;N;;;;;
+1230A;CUNEIFORM SIGN TUR OVER TUR ZA OVER ZA;Lo;0;L;;;;;N;;;;;
+1230B;CUNEIFORM SIGN U;Lo;0;L;;;;;N;;;;;
+1230C;CUNEIFORM SIGN U GUD;Lo;0;L;;;;;N;;;;;
+1230D;CUNEIFORM SIGN U U U;Lo;0;L;;;;;N;;;;;
+1230E;CUNEIFORM SIGN U OVER U PA OVER PA GAR OVER GAR;Lo;0;L;;;;;N;;;;;
+1230F;CUNEIFORM SIGN U OVER U SUR OVER SUR;Lo;0;L;;;;;N;;;;;
+12310;CUNEIFORM SIGN U OVER U U REVERSED OVER U REVERSED;Lo;0;L;;;;;N;;;;;
+12311;CUNEIFORM SIGN U2;Lo;0;L;;;;;N;;;;;
+12312;CUNEIFORM SIGN UB;Lo;0;L;;;;;N;;;;;
+12313;CUNEIFORM SIGN UD;Lo;0;L;;;;;N;;;;;
+12314;CUNEIFORM SIGN UD KUSHU2;Lo;0;L;;;;;N;;;;;
+12315;CUNEIFORM SIGN UD TIMES BAD;Lo;0;L;;;;;N;;;;;
+12316;CUNEIFORM SIGN UD TIMES MI;Lo;0;L;;;;;N;;;;;
+12317;CUNEIFORM SIGN UD TIMES U PLUS U PLUS U;Lo;0;L;;;;;N;;;;;
+12318;CUNEIFORM SIGN UD TIMES U PLUS U PLUS U GUNU;Lo;0;L;;;;;N;;;;;
+12319;CUNEIFORM SIGN UD GUNU;Lo;0;L;;;;;N;;;;;
+1231A;CUNEIFORM SIGN UD SHESHIG;Lo;0;L;;;;;N;;;;;
+1231B;CUNEIFORM SIGN UD SHESHIG TIMES BAD;Lo;0;L;;;;;N;;;;;
+1231C;CUNEIFORM SIGN UDUG;Lo;0;L;;;;;N;;;;;
+1231D;CUNEIFORM SIGN UM;Lo;0;L;;;;;N;;;;;
+1231E;CUNEIFORM SIGN UM TIMES LAGAB;Lo;0;L;;;;;N;;;;;
+1231F;CUNEIFORM SIGN UM TIMES ME PLUS DA;Lo;0;L;;;;;N;;;;;
+12320;CUNEIFORM SIGN UM TIMES SHA3;Lo;0;L;;;;;N;;;;;
+12321;CUNEIFORM SIGN UM TIMES U;Lo;0;L;;;;;N;;;;;
+12322;CUNEIFORM SIGN UMBIN;Lo;0;L;;;;;N;;;;;
+12323;CUNEIFORM SIGN UMUM;Lo;0;L;;;;;N;;;;;
+12324;CUNEIFORM SIGN UMUM TIMES KASKAL;Lo;0;L;;;;;N;;;;;
+12325;CUNEIFORM SIGN UMUM TIMES PA;Lo;0;L;;;;;N;;;;;
+12326;CUNEIFORM SIGN UN;Lo;0;L;;;;;N;;;;;
+12327;CUNEIFORM SIGN UN GUNU;Lo;0;L;;;;;N;;;;;
+12328;CUNEIFORM SIGN UR;Lo;0;L;;;;;N;;;;;
+12329;CUNEIFORM SIGN UR CROSSING UR;Lo;0;L;;;;;N;;;;;
+1232A;CUNEIFORM SIGN UR SHESHIG;Lo;0;L;;;;;N;;;;;
+1232B;CUNEIFORM SIGN UR2;Lo;0;L;;;;;N;;;;;
+1232C;CUNEIFORM SIGN UR2 TIMES A PLUS HA;Lo;0;L;;;;;N;;;;;
+1232D;CUNEIFORM SIGN UR2 TIMES A PLUS NA;Lo;0;L;;;;;N;;;;;
+1232E;CUNEIFORM SIGN UR2 TIMES AL;Lo;0;L;;;;;N;;;;;
+1232F;CUNEIFORM SIGN UR2 TIMES HA;Lo;0;L;;;;;N;;;;;
+12330;CUNEIFORM SIGN UR2 TIMES NUN;Lo;0;L;;;;;N;;;;;
+12331;CUNEIFORM SIGN UR2 TIMES U2;Lo;0;L;;;;;N;;;;;
+12332;CUNEIFORM SIGN UR2 TIMES U2 PLUS ASH;Lo;0;L;;;;;N;;;;;
+12333;CUNEIFORM SIGN UR2 TIMES U2 PLUS BI;Lo;0;L;;;;;N;;;;;
+12334;CUNEIFORM SIGN UR4;Lo;0;L;;;;;N;;;;;
+12335;CUNEIFORM SIGN URI;Lo;0;L;;;;;N;;;;;
+12336;CUNEIFORM SIGN URI3;Lo;0;L;;;;;N;;;;;
+12337;CUNEIFORM SIGN URU;Lo;0;L;;;;;N;;;;;
+12338;CUNEIFORM SIGN URU TIMES A;Lo;0;L;;;;;N;;;;;
+12339;CUNEIFORM SIGN URU TIMES ASHGAB;Lo;0;L;;;;;N;;;;;
+1233A;CUNEIFORM SIGN URU TIMES BAR;Lo;0;L;;;;;N;;;;;
+1233B;CUNEIFORM SIGN URU TIMES DUN;Lo;0;L;;;;;N;;;;;
+1233C;CUNEIFORM SIGN URU TIMES GA;Lo;0;L;;;;;N;;;;;
+1233D;CUNEIFORM SIGN URU TIMES GAL;Lo;0;L;;;;;N;;;;;
+1233E;CUNEIFORM SIGN URU TIMES GAN2 TENU;Lo;0;L;;;;;N;;;;;
+1233F;CUNEIFORM SIGN URU TIMES GAR;Lo;0;L;;;;;N;;;;;
+12340;CUNEIFORM SIGN URU TIMES GU;Lo;0;L;;;;;N;;;;;
+12341;CUNEIFORM SIGN URU TIMES HA;Lo;0;L;;;;;N;;;;;
+12342;CUNEIFORM SIGN URU TIMES IGI;Lo;0;L;;;;;N;;;;;
+12343;CUNEIFORM SIGN URU TIMES IM;Lo;0;L;;;;;N;;;;;
+12344;CUNEIFORM SIGN URU TIMES ISH;Lo;0;L;;;;;N;;;;;
+12345;CUNEIFORM SIGN URU TIMES KI;Lo;0;L;;;;;N;;;;;
+12346;CUNEIFORM SIGN URU TIMES LUM;Lo;0;L;;;;;N;;;;;
+12347;CUNEIFORM SIGN URU TIMES MIN;Lo;0;L;;;;;N;;;;;
+12348;CUNEIFORM SIGN URU TIMES PA;Lo;0;L;;;;;N;;;;;
+12349;CUNEIFORM SIGN URU TIMES SHE;Lo;0;L;;;;;N;;;;;
+1234A;CUNEIFORM SIGN URU TIMES SIG4;Lo;0;L;;;;;N;;;;;
+1234B;CUNEIFORM SIGN URU TIMES TU;Lo;0;L;;;;;N;;;;;
+1234C;CUNEIFORM SIGN URU TIMES U PLUS GUD;Lo;0;L;;;;;N;;;;;
+1234D;CUNEIFORM SIGN URU TIMES UD;Lo;0;L;;;;;N;;;;;
+1234E;CUNEIFORM SIGN URU TIMES URUDA;Lo;0;L;;;;;N;;;;;
+1234F;CUNEIFORM SIGN URUDA;Lo;0;L;;;;;N;;;;;
+12350;CUNEIFORM SIGN URUDA TIMES U;Lo;0;L;;;;;N;;;;;
+12351;CUNEIFORM SIGN USH;Lo;0;L;;;;;N;;;;;
+12352;CUNEIFORM SIGN USH TIMES A;Lo;0;L;;;;;N;;;;;
+12353;CUNEIFORM SIGN USH TIMES KU;Lo;0;L;;;;;N;;;;;
+12354;CUNEIFORM SIGN USH TIMES KUR;Lo;0;L;;;;;N;;;;;
+12355;CUNEIFORM SIGN USH TIMES TAK4;Lo;0;L;;;;;N;;;;;
+12356;CUNEIFORM SIGN USHX;Lo;0;L;;;;;N;;;;;
+12357;CUNEIFORM SIGN USH2;Lo;0;L;;;;;N;;;;;
+12358;CUNEIFORM SIGN USHUMX;Lo;0;L;;;;;N;;;;;
+12359;CUNEIFORM SIGN UTUKI;Lo;0;L;;;;;N;;;;;
+1235A;CUNEIFORM SIGN UZ3;Lo;0;L;;;;;N;;;;;
+1235B;CUNEIFORM SIGN UZ3 TIMES KASKAL;Lo;0;L;;;;;N;;;;;
+1235C;CUNEIFORM SIGN UZU;Lo;0;L;;;;;N;;;;;
+1235D;CUNEIFORM SIGN ZA;Lo;0;L;;;;;N;;;;;
+1235E;CUNEIFORM SIGN ZA TENU;Lo;0;L;;;;;N;;;;;
+1235F;CUNEIFORM SIGN ZA SQUARED TIMES KUR;Lo;0;L;;;;;N;;;;;
+12360;CUNEIFORM SIGN ZAG;Lo;0;L;;;;;N;;;;;
+12361;CUNEIFORM SIGN ZAMX;Lo;0;L;;;;;N;;;;;
+12362;CUNEIFORM SIGN ZE2;Lo;0;L;;;;;N;;;;;
+12363;CUNEIFORM SIGN ZI;Lo;0;L;;;;;N;;;;;
+12364;CUNEIFORM SIGN ZI OVER ZI;Lo;0;L;;;;;N;;;;;
+12365;CUNEIFORM SIGN ZI3;Lo;0;L;;;;;N;;;;;
+12366;CUNEIFORM SIGN ZIB;Lo;0;L;;;;;N;;;;;
+12367;CUNEIFORM SIGN ZIB KABA TENU;Lo;0;L;;;;;N;;;;;
+12368;CUNEIFORM SIGN ZIG;Lo;0;L;;;;;N;;;;;
+12369;CUNEIFORM SIGN ZIZ2;Lo;0;L;;;;;N;;;;;
+1236A;CUNEIFORM SIGN ZU;Lo;0;L;;;;;N;;;;;
+1236B;CUNEIFORM SIGN ZU5;Lo;0;L;;;;;N;;;;;
+1236C;CUNEIFORM SIGN ZU5 TIMES A;Lo;0;L;;;;;N;;;;;
+1236D;CUNEIFORM SIGN ZUBUR;Lo;0;L;;;;;N;;;;;
+1236E;CUNEIFORM SIGN ZUM;Lo;0;L;;;;;N;;;;;
+12400;CUNEIFORM NUMERIC SIGN TWO ASH;Nl;0;L;;;;2;N;;;;;
+12401;CUNEIFORM NUMERIC SIGN THREE ASH;Nl;0;L;;;;3;N;;;;;
+12402;CUNEIFORM NUMERIC SIGN FOUR ASH;Nl;0;L;;;;4;N;;;;;
+12403;CUNEIFORM NUMERIC SIGN FIVE ASH;Nl;0;L;;;;5;N;;;;;
+12404;CUNEIFORM NUMERIC SIGN SIX ASH;Nl;0;L;;;;6;N;;;;;
+12405;CUNEIFORM NUMERIC SIGN SEVEN ASH;Nl;0;L;;;;7;N;;;;;
+12406;CUNEIFORM NUMERIC SIGN EIGHT ASH;Nl;0;L;;;;8;N;;;;;
+12407;CUNEIFORM NUMERIC SIGN NINE ASH;Nl;0;L;;;;9;N;;;;;
+12408;CUNEIFORM NUMERIC SIGN THREE DISH;Nl;0;L;;;;3;N;;;;;
+12409;CUNEIFORM NUMERIC SIGN FOUR DISH;Nl;0;L;;;;4;N;;;;;
+1240A;CUNEIFORM NUMERIC SIGN FIVE DISH;Nl;0;L;;;;5;N;;;;;
+1240B;CUNEIFORM NUMERIC SIGN SIX DISH;Nl;0;L;;;;6;N;;;;;
+1240C;CUNEIFORM NUMERIC SIGN SEVEN DISH;Nl;0;L;;;;7;N;;;;;
+1240D;CUNEIFORM NUMERIC SIGN EIGHT DISH;Nl;0;L;;;;8;N;;;;;
+1240E;CUNEIFORM NUMERIC SIGN NINE DISH;Nl;0;L;;;;9;N;;;;;
+1240F;CUNEIFORM NUMERIC SIGN FOUR U;Nl;0;L;;;;4;N;;;;;
+12410;CUNEIFORM NUMERIC SIGN FIVE U;Nl;0;L;;;;5;N;;;;;
+12411;CUNEIFORM NUMERIC SIGN SIX U;Nl;0;L;;;;6;N;;;;;
+12412;CUNEIFORM NUMERIC SIGN SEVEN U;Nl;0;L;;;;7;N;;;;;
+12413;CUNEIFORM NUMERIC SIGN EIGHT U;Nl;0;L;;;;8;N;;;;;
+12414;CUNEIFORM NUMERIC SIGN NINE U;Nl;0;L;;;;9;N;;;;;
+12415;CUNEIFORM NUMERIC SIGN ONE GESH2;Nl;0;L;;;;1;N;;;;;
+12416;CUNEIFORM NUMERIC SIGN TWO GESH2;Nl;0;L;;;;2;N;;;;;
+12417;CUNEIFORM NUMERIC SIGN THREE GESH2;Nl;0;L;;;;3;N;;;;;
+12418;CUNEIFORM NUMERIC SIGN FOUR GESH2;Nl;0;L;;;;4;N;;;;;
+12419;CUNEIFORM NUMERIC SIGN FIVE GESH2;Nl;0;L;;;;5;N;;;;;
+1241A;CUNEIFORM NUMERIC SIGN SIX GESH2;Nl;0;L;;;;6;N;;;;;
+1241B;CUNEIFORM NUMERIC SIGN SEVEN GESH2;Nl;0;L;;;;7;N;;;;;
+1241C;CUNEIFORM NUMERIC SIGN EIGHT GESH2;Nl;0;L;;;;8;N;;;;;
+1241D;CUNEIFORM NUMERIC SIGN NINE GESH2;Nl;0;L;;;;9;N;;;;;
+1241E;CUNEIFORM NUMERIC SIGN ONE GESHU;Nl;0;L;;;;1;N;;;;;
+1241F;CUNEIFORM NUMERIC SIGN TWO GESHU;Nl;0;L;;;;2;N;;;;;
+12420;CUNEIFORM NUMERIC SIGN THREE GESHU;Nl;0;L;;;;3;N;;;;;
+12421;CUNEIFORM NUMERIC SIGN FOUR GESHU;Nl;0;L;;;;4;N;;;;;
+12422;CUNEIFORM NUMERIC SIGN FIVE GESHU;Nl;0;L;;;;5;N;;;;;
+12423;CUNEIFORM NUMERIC SIGN TWO SHAR2;Nl;0;L;;;;2;N;;;;;
+12424;CUNEIFORM NUMERIC SIGN THREE SHAR2;Nl;0;L;;;;3;N;;;;;
+12425;CUNEIFORM NUMERIC SIGN THREE SHAR2 VARIANT FORM;Nl;0;L;;;;3;N;;;;;
+12426;CUNEIFORM NUMERIC SIGN FOUR SHAR2;Nl;0;L;;;;4;N;;;;;
+12427;CUNEIFORM NUMERIC SIGN FIVE SHAR2;Nl;0;L;;;;5;N;;;;;
+12428;CUNEIFORM NUMERIC SIGN SIX SHAR2;Nl;0;L;;;;6;N;;;;;
+12429;CUNEIFORM NUMERIC SIGN SEVEN SHAR2;Nl;0;L;;;;7;N;;;;;
+1242A;CUNEIFORM NUMERIC SIGN EIGHT SHAR2;Nl;0;L;;;;8;N;;;;;
+1242B;CUNEIFORM NUMERIC SIGN NINE SHAR2;Nl;0;L;;;;9;N;;;;;
+1242C;CUNEIFORM NUMERIC SIGN ONE SHARU;Nl;0;L;;;;1;N;;;;;
+1242D;CUNEIFORM NUMERIC SIGN TWO SHARU;Nl;0;L;;;;2;N;;;;;
+1242E;CUNEIFORM NUMERIC SIGN THREE SHARU;Nl;0;L;;;;3;N;;;;;
+1242F;CUNEIFORM NUMERIC SIGN THREE SHARU VARIANT FORM;Nl;0;L;;;;3;N;;;;;
+12430;CUNEIFORM NUMERIC SIGN FOUR SHARU;Nl;0;L;;;;4;N;;;;;
+12431;CUNEIFORM NUMERIC SIGN FIVE SHARU;Nl;0;L;;;;5;N;;;;;
+12432;CUNEIFORM NUMERIC SIGN SHAR2 TIMES GAL PLUS DISH;Nl;0;L;;;;;N;;;;;
+12433;CUNEIFORM NUMERIC SIGN SHAR2 TIMES GAL PLUS MIN;Nl;0;L;;;;;N;;;;;
+12434;CUNEIFORM NUMERIC SIGN ONE BURU;Nl;0;L;;;;1;N;;;;;
+12435;CUNEIFORM NUMERIC SIGN TWO BURU;Nl;0;L;;;;2;N;;;;;
+12436;CUNEIFORM NUMERIC SIGN THREE BURU;Nl;0;L;;;;3;N;;;;;
+12437;CUNEIFORM NUMERIC SIGN THREE BURU VARIANT FORM;Nl;0;L;;;;3;N;;;;;
+12438;CUNEIFORM NUMERIC SIGN FOUR BURU;Nl;0;L;;;;4;N;;;;;
+12439;CUNEIFORM NUMERIC SIGN FIVE BURU;Nl;0;L;;;;5;N;;;;;
+1243A;CUNEIFORM NUMERIC SIGN THREE VARIANT FORM ESH16;Nl;0;L;;;;3;N;;;;;
+1243B;CUNEIFORM NUMERIC SIGN THREE VARIANT FORM ESH21;Nl;0;L;;;;3;N;;;;;
+1243C;CUNEIFORM NUMERIC SIGN FOUR VARIANT FORM LIMMU;Nl;0;L;;;;4;N;;;;;
+1243D;CUNEIFORM NUMERIC SIGN FOUR VARIANT FORM LIMMU4;Nl;0;L;;;;4;N;;;;;
+1243E;CUNEIFORM NUMERIC SIGN FOUR VARIANT FORM LIMMU A;Nl;0;L;;;;4;N;;;;;
+1243F;CUNEIFORM NUMERIC SIGN FOUR VARIANT FORM LIMMU B;Nl;0;L;;;;4;N;;;;;
+12440;CUNEIFORM NUMERIC SIGN SIX VARIANT FORM ASH9;Nl;0;L;;;;6;N;;;;;
+12441;CUNEIFORM NUMERIC SIGN SEVEN VARIANT FORM IMIN3;Nl;0;L;;;;7;N;;;;;
+12442;CUNEIFORM NUMERIC SIGN SEVEN VARIANT FORM IMIN A;Nl;0;L;;;;7;N;;;;;
+12443;CUNEIFORM NUMERIC SIGN SEVEN VARIANT FORM IMIN B;Nl;0;L;;;;7;N;;;;;
+12444;CUNEIFORM NUMERIC SIGN EIGHT VARIANT FORM USSU;Nl;0;L;;;;8;N;;;;;
+12445;CUNEIFORM NUMERIC SIGN EIGHT VARIANT FORM USSU3;Nl;0;L;;;;8;N;;;;;
+12446;CUNEIFORM NUMERIC SIGN NINE VARIANT FORM ILIMMU;Nl;0;L;;;;9;N;;;;;
+12447;CUNEIFORM NUMERIC SIGN NINE VARIANT FORM ILIMMU3;Nl;0;L;;;;9;N;;;;;
+12448;CUNEIFORM NUMERIC SIGN NINE VARIANT FORM ILIMMU4;Nl;0;L;;;;9;N;;;;;
+12449;CUNEIFORM NUMERIC SIGN NINE VARIANT FORM ILIMMU A;Nl;0;L;;;;9;N;;;;;
+1244A;CUNEIFORM NUMERIC SIGN TWO ASH TENU;Nl;0;L;;;;2;N;;;;;
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+1683B;BAMUM LETTER PHASE-A KPOQ;Lo;0;L;;;;;N;;;;;
+1683C;BAMUM LETTER PHASE-A SOQ;Lo;0;L;;;;;N;;;;;
+1683D;BAMUM LETTER PHASE-A MAP PIEET;Lo;0;L;;;;;N;;;;;
+1683E;BAMUM LETTER PHASE-A SHIRAE;Lo;0;L;;;;;N;;;;;
+1683F;BAMUM LETTER PHASE-A NTAP;Lo;0;L;;;;;N;;;;;
+16840;BAMUM LETTER PHASE-A SHOQ NSHUT YUM;Lo;0;L;;;;;N;;;;;
+16841;BAMUM LETTER PHASE-A NYIT MONGKEUAEQ;Lo;0;L;;;;;N;;;;;
+16842;BAMUM LETTER PHASE-A PAARAE;Lo;0;L;;;;;N;;;;;
+16843;BAMUM LETTER PHASE-A NKAARAE;Lo;0;L;;;;;N;;;;;
+16844;BAMUM LETTER PHASE-A UNKNOWN;Lo;0;L;;;;;N;;;;;
+16845;BAMUM LETTER PHASE-A NGGEN;Lo;0;L;;;;;N;;;;;
+16846;BAMUM LETTER PHASE-A MAESI;Lo;0;L;;;;;N;;;;;
+16847;BAMUM LETTER PHASE-A NJAM;Lo;0;L;;;;;N;;;;;
+16848;BAMUM LETTER PHASE-A MBANYI;Lo;0;L;;;;;N;;;;;
+16849;BAMUM LETTER PHASE-A NYET;Lo;0;L;;;;;N;;;;;
+1684A;BAMUM LETTER PHASE-A TEUAEN;Lo;0;L;;;;;N;;;;;
+1684B;BAMUM LETTER PHASE-A SOT;Lo;0;L;;;;;N;;;;;
+1684C;BAMUM LETTER PHASE-A PAAM;Lo;0;L;;;;;N;;;;;
+1684D;BAMUM LETTER PHASE-A NSHIEE;Lo;0;L;;;;;N;;;;;
+1684E;BAMUM LETTER PHASE-A MAEM;Lo;0;L;;;;;N;;;;;
+1684F;BAMUM LETTER PHASE-A NYI;Lo;0;L;;;;;N;;;;;
+16850;BAMUM LETTER PHASE-A KAQ;Lo;0;L;;;;;N;;;;;
+16851;BAMUM LETTER PHASE-A NSHA;Lo;0;L;;;;;N;;;;;
+16852;BAMUM LETTER PHASE-A VEE;Lo;0;L;;;;;N;;;;;
+16853;BAMUM LETTER PHASE-A LU;Lo;0;L;;;;;N;;;;;
+16854;BAMUM LETTER PHASE-A NEN;Lo;0;L;;;;;N;;;;;
+16855;BAMUM LETTER PHASE-A NAQ;Lo;0;L;;;;;N;;;;;
+16856;BAMUM LETTER PHASE-A MBAQ;Lo;0;L;;;;;N;;;;;
+16857;BAMUM LETTER PHASE-B NSHUET;Lo;0;L;;;;;N;;;;;
+16858;BAMUM LETTER PHASE-B TU MAEMGBIEE;Lo;0;L;;;;;N;;;;;
+16859;BAMUM LETTER PHASE-B SIEE;Lo;0;L;;;;;N;;;;;
+1685A;BAMUM LETTER PHASE-B SET TU;Lo;0;L;;;;;N;;;;;
+1685B;BAMUM LETTER PHASE-B LOM NTEUM;Lo;0;L;;;;;N;;;;;
+1685C;BAMUM LETTER PHASE-B MBA MAELEE;Lo;0;L;;;;;N;;;;;
+1685D;BAMUM LETTER PHASE-B KIEEM;Lo;0;L;;;;;N;;;;;
+1685E;BAMUM LETTER PHASE-B YEURAE;Lo;0;L;;;;;N;;;;;
+1685F;BAMUM LETTER PHASE-B MBAARAE;Lo;0;L;;;;;N;;;;;
+16860;BAMUM LETTER PHASE-B KAM;Lo;0;L;;;;;N;;;;;
+16861;BAMUM LETTER PHASE-B PEESHI;Lo;0;L;;;;;N;;;;;
+16862;BAMUM LETTER PHASE-B YAFU LEERAEWA;Lo;0;L;;;;;N;;;;;
+16863;BAMUM LETTER PHASE-B LAM NSHUT NYAM;Lo;0;L;;;;;N;;;;;
+16864;BAMUM LETTER PHASE-B NTIEE SHEUOQ;Lo;0;L;;;;;N;;;;;
+16865;BAMUM LETTER PHASE-B NDU NJAA;Lo;0;L;;;;;N;;;;;
+16866;BAMUM LETTER PHASE-B GHEUGHEUAEM;Lo;0;L;;;;;N;;;;;
+16867;BAMUM LETTER PHASE-B PIT;Lo;0;L;;;;;N;;;;;
+16868;BAMUM LETTER PHASE-B TU NSIEE;Lo;0;L;;;;;N;;;;;
+16869;BAMUM LETTER PHASE-B SHET NJAQ;Lo;0;L;;;;;N;;;;;
+1686A;BAMUM LETTER PHASE-B SHEUAEQTU;Lo;0;L;;;;;N;;;;;
+1686B;BAMUM LETTER PHASE-B MFON TEUAEQ;Lo;0;L;;;;;N;;;;;
+1686C;BAMUM LETTER PHASE-B MBIT MBAAKET;Lo;0;L;;;;;N;;;;;
+1686D;BAMUM LETTER PHASE-B NYI NTEUM;Lo;0;L;;;;;N;;;;;
+1686E;BAMUM LETTER PHASE-B KEUPUQ;Lo;0;L;;;;;N;;;;;
+1686F;BAMUM LETTER PHASE-B GHEUGHEN;Lo;0;L;;;;;N;;;;;
+16870;BAMUM LETTER PHASE-B KEUYEUX;Lo;0;L;;;;;N;;;;;
+16871;BAMUM LETTER PHASE-B LAANAE;Lo;0;L;;;;;N;;;;;
+16872;BAMUM LETTER PHASE-B PARUM;Lo;0;L;;;;;N;;;;;
+16873;BAMUM LETTER PHASE-B VEUM;Lo;0;L;;;;;N;;;;;
+16874;BAMUM LETTER PHASE-B NGKINDI MVOP;Lo;0;L;;;;;N;;;;;
+16875;BAMUM LETTER PHASE-B NGGEU MBU;Lo;0;L;;;;;N;;;;;
+16876;BAMUM LETTER PHASE-B WUAET;Lo;0;L;;;;;N;;;;;
+16877;BAMUM LETTER PHASE-B SAKEUAE;Lo;0;L;;;;;N;;;;;
+16878;BAMUM LETTER PHASE-B TAAM;Lo;0;L;;;;;N;;;;;
+16879;BAMUM LETTER PHASE-B MEUQ;Lo;0;L;;;;;N;;;;;
+1687A;BAMUM LETTER PHASE-B NGGUOQ;Lo;0;L;;;;;N;;;;;
+1687B;BAMUM LETTER PHASE-B NGGUOQ LARGE;Lo;0;L;;;;;N;;;;;
+1687C;BAMUM LETTER PHASE-B MFIYAQ;Lo;0;L;;;;;N;;;;;
+1687D;BAMUM LETTER PHASE-B SUE;Lo;0;L;;;;;N;;;;;
+1687E;BAMUM LETTER PHASE-B MBEURI;Lo;0;L;;;;;N;;;;;
+1687F;BAMUM LETTER PHASE-B MONTIEEN;Lo;0;L;;;;;N;;;;;
+16880;BAMUM LETTER PHASE-B NYAEMAE;Lo;0;L;;;;;N;;;;;
+16881;BAMUM LETTER PHASE-B PUNGAAM;Lo;0;L;;;;;N;;;;;
+16882;BAMUM LETTER PHASE-B MEUT NGGEET;Lo;0;L;;;;;N;;;;;
+16883;BAMUM LETTER PHASE-B FEUX;Lo;0;L;;;;;N;;;;;
+16884;BAMUM LETTER PHASE-B MBUOQ;Lo;0;L;;;;;N;;;;;
+16885;BAMUM LETTER PHASE-B FEE;Lo;0;L;;;;;N;;;;;
+16886;BAMUM LETTER PHASE-B KEUAEM;Lo;0;L;;;;;N;;;;;
+16887;BAMUM LETTER PHASE-B MA NJEUAENA;Lo;0;L;;;;;N;;;;;
+16888;BAMUM LETTER PHASE-B MA NJUQA;Lo;0;L;;;;;N;;;;;
+16889;BAMUM LETTER PHASE-B LET;Lo;0;L;;;;;N;;;;;
+1688A;BAMUM LETTER PHASE-B NGGAAM;Lo;0;L;;;;;N;;;;;
+1688B;BAMUM LETTER PHASE-B NSEN;Lo;0;L;;;;;N;;;;;
+1688C;BAMUM LETTER PHASE-B MA;Lo;0;L;;;;;N;;;;;
+1688D;BAMUM LETTER PHASE-B KIQ;Lo;0;L;;;;;N;;;;;
+1688E;BAMUM LETTER PHASE-B NGOM;Lo;0;L;;;;;N;;;;;
+1688F;BAMUM LETTER PHASE-C NGKUE MAEMBA;Lo;0;L;;;;;N;;;;;
+16890;BAMUM LETTER PHASE-C NZA;Lo;0;L;;;;;N;;;;;
+16891;BAMUM LETTER PHASE-C YUM;Lo;0;L;;;;;N;;;;;
+16892;BAMUM LETTER PHASE-C WANGKUOQ;Lo;0;L;;;;;N;;;;;
+16893;BAMUM LETTER PHASE-C NGGEN;Lo;0;L;;;;;N;;;;;
+16894;BAMUM LETTER PHASE-C NDEUAEREE;Lo;0;L;;;;;N;;;;;
+16895;BAMUM LETTER PHASE-C NGKAQ;Lo;0;L;;;;;N;;;;;
+16896;BAMUM LETTER PHASE-C GHARAE;Lo;0;L;;;;;N;;;;;
+16897;BAMUM LETTER PHASE-C MBEEKEET;Lo;0;L;;;;;N;;;;;
+16898;BAMUM LETTER PHASE-C GBAYI;Lo;0;L;;;;;N;;;;;
+16899;BAMUM LETTER PHASE-C NYIR MKPARAQ MEUN;Lo;0;L;;;;;N;;;;;
+1689A;BAMUM LETTER PHASE-C NTU MBIT;Lo;0;L;;;;;N;;;;;
+1689B;BAMUM LETTER PHASE-C MBEUM;Lo;0;L;;;;;N;;;;;
+1689C;BAMUM LETTER PHASE-C PIRIEEN;Lo;0;L;;;;;N;;;;;
+1689D;BAMUM LETTER PHASE-C NDOMBU;Lo;0;L;;;;;N;;;;;
+1689E;BAMUM LETTER PHASE-C MBAA CABBAGE-TREE;Lo;0;L;;;;;N;;;;;
+1689F;BAMUM LETTER PHASE-C KEUSHEUAEP;Lo;0;L;;;;;N;;;;;
+168A0;BAMUM LETTER PHASE-C GHAP;Lo;0;L;;;;;N;;;;;
+168A1;BAMUM LETTER PHASE-C KEUKAQ;Lo;0;L;;;;;N;;;;;
+168A2;BAMUM LETTER PHASE-C YU MUOMAE;Lo;0;L;;;;;N;;;;;
+168A3;BAMUM LETTER PHASE-C NZEUM;Lo;0;L;;;;;N;;;;;
+168A4;BAMUM LETTER PHASE-C MBUE;Lo;0;L;;;;;N;;;;;
+168A5;BAMUM LETTER PHASE-C NSEUAEN;Lo;0;L;;;;;N;;;;;
+168A6;BAMUM LETTER PHASE-C MBIT;Lo;0;L;;;;;N;;;;;
+168A7;BAMUM LETTER PHASE-C YEUQ;Lo;0;L;;;;;N;;;;;
+168A8;BAMUM LETTER PHASE-C KPARAQ;Lo;0;L;;;;;N;;;;;
+168A9;BAMUM LETTER PHASE-C KAA;Lo;0;L;;;;;N;;;;;
+168AA;BAMUM LETTER PHASE-C SEUX;Lo;0;L;;;;;N;;;;;
+168AB;BAMUM LETTER PHASE-C NDIDA;Lo;0;L;;;;;N;;;;;
+168AC;BAMUM LETTER PHASE-C TAASHAE;Lo;0;L;;;;;N;;;;;
+168AD;BAMUM LETTER PHASE-C NJUEQ;Lo;0;L;;;;;N;;;;;
+168AE;BAMUM LETTER PHASE-C TITA YUE;Lo;0;L;;;;;N;;;;;
+168AF;BAMUM LETTER PHASE-C SUAET;Lo;0;L;;;;;N;;;;;
+168B0;BAMUM LETTER PHASE-C NGGUAEN NYAM;Lo;0;L;;;;;N;;;;;
+168B1;BAMUM LETTER PHASE-C VEUX;Lo;0;L;;;;;N;;;;;
+168B2;BAMUM LETTER PHASE-C NANSANAQ;Lo;0;L;;;;;N;;;;;
+168B3;BAMUM LETTER PHASE-C MA KEUAERI;Lo;0;L;;;;;N;;;;;
+168B4;BAMUM LETTER PHASE-C NTAA;Lo;0;L;;;;;N;;;;;
+168B5;BAMUM LETTER PHASE-C NGGUON;Lo;0;L;;;;;N;;;;;
+168B6;BAMUM LETTER PHASE-C LAP;Lo;0;L;;;;;N;;;;;
+168B7;BAMUM LETTER PHASE-C MBIRIEEN;Lo;0;L;;;;;N;;;;;
+168B8;BAMUM LETTER PHASE-C MGBASAQ;Lo;0;L;;;;;N;;;;;
+168B9;BAMUM LETTER PHASE-C NTEUNGBA;Lo;0;L;;;;;N;;;;;
+168BA;BAMUM LETTER PHASE-C TEUTEUX;Lo;0;L;;;;;N;;;;;
+168BB;BAMUM LETTER PHASE-C NGGUM;Lo;0;L;;;;;N;;;;;
+168BC;BAMUM LETTER PHASE-C FUE;Lo;0;L;;;;;N;;;;;
+168BD;BAMUM LETTER PHASE-C NDEUT;Lo;0;L;;;;;N;;;;;
+168BE;BAMUM LETTER PHASE-C NSA;Lo;0;L;;;;;N;;;;;
+168BF;BAMUM LETTER PHASE-C NSHAQ;Lo;0;L;;;;;N;;;;;
+168C0;BAMUM LETTER PHASE-C BUNG;Lo;0;L;;;;;N;;;;;
+168C1;BAMUM LETTER PHASE-C VEUAEPEN;Lo;0;L;;;;;N;;;;;
+168C2;BAMUM LETTER PHASE-C MBERAE;Lo;0;L;;;;;N;;;;;
+168C3;BAMUM LETTER PHASE-C RU;Lo;0;L;;;;;N;;;;;
+168C4;BAMUM LETTER PHASE-C NJAEM;Lo;0;L;;;;;N;;;;;
+168C5;BAMUM LETTER PHASE-C LAM;Lo;0;L;;;;;N;;;;;
+168C6;BAMUM LETTER PHASE-C TITUAEP;Lo;0;L;;;;;N;;;;;
+168C7;BAMUM LETTER PHASE-C NSUOT NGOM;Lo;0;L;;;;;N;;;;;
+168C8;BAMUM LETTER PHASE-C NJEEEE;Lo;0;L;;;;;N;;;;;
+168C9;BAMUM LETTER PHASE-C KET;Lo;0;L;;;;;N;;;;;
+168CA;BAMUM LETTER PHASE-C NGGU;Lo;0;L;;;;;N;;;;;
+168CB;BAMUM LETTER PHASE-C MAESI;Lo;0;L;;;;;N;;;;;
+168CC;BAMUM LETTER PHASE-C MBUAEM;Lo;0;L;;;;;N;;;;;
+168CD;BAMUM LETTER PHASE-C LU;Lo;0;L;;;;;N;;;;;
+168CE;BAMUM LETTER PHASE-C KUT;Lo;0;L;;;;;N;;;;;
+168CF;BAMUM LETTER PHASE-C NJAM;Lo;0;L;;;;;N;;;;;
+168D0;BAMUM LETTER PHASE-C NGOM;Lo;0;L;;;;;N;;;;;
+168D1;BAMUM LETTER PHASE-C WUP;Lo;0;L;;;;;N;;;;;
+168D2;BAMUM LETTER PHASE-C NGGUEET;Lo;0;L;;;;;N;;;;;
+168D3;BAMUM LETTER PHASE-C NSOM;Lo;0;L;;;;;N;;;;;
+168D4;BAMUM LETTER PHASE-C NTEN;Lo;0;L;;;;;N;;;;;
+168D5;BAMUM LETTER PHASE-C KUOP NKAARAE;Lo;0;L;;;;;N;;;;;
+168D6;BAMUM LETTER PHASE-C NSUN;Lo;0;L;;;;;N;;;;;
+168D7;BAMUM LETTER PHASE-C NDAM;Lo;0;L;;;;;N;;;;;
+168D8;BAMUM LETTER PHASE-C MA NSIEE;Lo;0;L;;;;;N;;;;;
+168D9;BAMUM LETTER PHASE-C YAA;Lo;0;L;;;;;N;;;;;
+168DA;BAMUM LETTER PHASE-C NDAP;Lo;0;L;;;;;N;;;;;
+168DB;BAMUM LETTER PHASE-C SHUEQ;Lo;0;L;;;;;N;;;;;
+168DC;BAMUM LETTER PHASE-C SETFON;Lo;0;L;;;;;N;;;;;
+168DD;BAMUM LETTER PHASE-C MBI;Lo;0;L;;;;;N;;;;;
+168DE;BAMUM LETTER PHASE-C MAEMBA;Lo;0;L;;;;;N;;;;;
+168DF;BAMUM LETTER PHASE-C MBANYI;Lo;0;L;;;;;N;;;;;
+168E0;BAMUM LETTER PHASE-C KEUSEUX;Lo;0;L;;;;;N;;;;;
+168E1;BAMUM LETTER PHASE-C MBEUX;Lo;0;L;;;;;N;;;;;
+168E2;BAMUM LETTER PHASE-C KEUM;Lo;0;L;;;;;N;;;;;
+168E3;BAMUM LETTER PHASE-C MBAA PICKET;Lo;0;L;;;;;N;;;;;
+168E4;BAMUM LETTER PHASE-C YUWOQ;Lo;0;L;;;;;N;;;;;
+168E5;BAMUM LETTER PHASE-C NJEUX;Lo;0;L;;;;;N;;;;;
+168E6;BAMUM LETTER PHASE-C MIEE;Lo;0;L;;;;;N;;;;;
+168E7;BAMUM LETTER PHASE-C MUAE;Lo;0;L;;;;;N;;;;;
+168E8;BAMUM LETTER PHASE-C SHIQ;Lo;0;L;;;;;N;;;;;
+168E9;BAMUM LETTER PHASE-C KEN LAW;Lo;0;L;;;;;N;;;;;
+168EA;BAMUM LETTER PHASE-C KEN FATIGUE;Lo;0;L;;;;;N;;;;;
+168EB;BAMUM LETTER PHASE-C NGAQ;Lo;0;L;;;;;N;;;;;
+168EC;BAMUM LETTER PHASE-C NAQ;Lo;0;L;;;;;N;;;;;
+168ED;BAMUM LETTER PHASE-C LIQ;Lo;0;L;;;;;N;;;;;
+168EE;BAMUM LETTER PHASE-C PIN;Lo;0;L;;;;;N;;;;;
+168EF;BAMUM LETTER PHASE-C PEN;Lo;0;L;;;;;N;;;;;
+168F0;BAMUM LETTER PHASE-C TET;Lo;0;L;;;;;N;;;;;
+168F1;BAMUM LETTER PHASE-D MBUO;Lo;0;L;;;;;N;;;;;
+168F2;BAMUM LETTER PHASE-D WAP;Lo;0;L;;;;;N;;;;;
+168F3;BAMUM LETTER PHASE-D NJI;Lo;0;L;;;;;N;;;;;
+168F4;BAMUM LETTER PHASE-D MFON;Lo;0;L;;;;;N;;;;;
+168F5;BAMUM LETTER PHASE-D NJIEE;Lo;0;L;;;;;N;;;;;
+168F6;BAMUM LETTER PHASE-D LIEE;Lo;0;L;;;;;N;;;;;
+168F7;BAMUM LETTER PHASE-D NJEUT;Lo;0;L;;;;;N;;;;;
+168F8;BAMUM LETTER PHASE-D NSHEE;Lo;0;L;;;;;N;;;;;
+168F9;BAMUM LETTER PHASE-D NGGAAMAE;Lo;0;L;;;;;N;;;;;
+168FA;BAMUM LETTER PHASE-D NYAM;Lo;0;L;;;;;N;;;;;
+168FB;BAMUM LETTER PHASE-D WUAEN;Lo;0;L;;;;;N;;;;;
+168FC;BAMUM LETTER PHASE-D NGKUN;Lo;0;L;;;;;N;;;;;
+168FD;BAMUM LETTER PHASE-D SHEE;Lo;0;L;;;;;N;;;;;
+168FE;BAMUM LETTER PHASE-D NGKAP;Lo;0;L;;;;;N;;;;;
+168FF;BAMUM LETTER PHASE-D KEUAETMEUN;Lo;0;L;;;;;N;;;;;
+16900;BAMUM LETTER PHASE-D TEUT;Lo;0;L;;;;;N;;;;;
+16901;BAMUM LETTER PHASE-D SHEUAE;Lo;0;L;;;;;N;;;;;
+16902;BAMUM LETTER PHASE-D NJAP;Lo;0;L;;;;;N;;;;;
+16903;BAMUM LETTER PHASE-D SUE;Lo;0;L;;;;;N;;;;;
+16904;BAMUM LETTER PHASE-D KET;Lo;0;L;;;;;N;;;;;
+16905;BAMUM LETTER PHASE-D YAEMMAE;Lo;0;L;;;;;N;;;;;
+16906;BAMUM LETTER PHASE-D KUOM;Lo;0;L;;;;;N;;;;;
+16907;BAMUM LETTER PHASE-D SAP;Lo;0;L;;;;;N;;;;;
+16908;BAMUM LETTER PHASE-D MFEUT;Lo;0;L;;;;;N;;;;;
+16909;BAMUM LETTER PHASE-D NDEUX;Lo;0;L;;;;;N;;;;;
+1690A;BAMUM LETTER PHASE-D MALEERI;Lo;0;L;;;;;N;;;;;
+1690B;BAMUM LETTER PHASE-D MEUT;Lo;0;L;;;;;N;;;;;
+1690C;BAMUM LETTER PHASE-D SEUAEQ;Lo;0;L;;;;;N;;;;;
+1690D;BAMUM LETTER PHASE-D YEN;Lo;0;L;;;;;N;;;;;
+1690E;BAMUM LETTER PHASE-D NJEUAEM;Lo;0;L;;;;;N;;;;;
+1690F;BAMUM LETTER PHASE-D KEUOT MBUAE;Lo;0;L;;;;;N;;;;;
+16910;BAMUM LETTER PHASE-D NGKEURI;Lo;0;L;;;;;N;;;;;
+16911;BAMUM LETTER PHASE-D TU;Lo;0;L;;;;;N;;;;;
+16912;BAMUM LETTER PHASE-D GHAA;Lo;0;L;;;;;N;;;;;
+16913;BAMUM LETTER PHASE-D NGKYEE;Lo;0;L;;;;;N;;;;;
+16914;BAMUM LETTER PHASE-D FEUFEUAET;Lo;0;L;;;;;N;;;;;
+16915;BAMUM LETTER PHASE-D NDEE;Lo;0;L;;;;;N;;;;;
+16916;BAMUM LETTER PHASE-D MGBOFUM;Lo;0;L;;;;;N;;;;;
+16917;BAMUM LETTER PHASE-D LEUAEP;Lo;0;L;;;;;N;;;;;
+16918;BAMUM LETTER PHASE-D NDON;Lo;0;L;;;;;N;;;;;
+16919;BAMUM LETTER PHASE-D MONI;Lo;0;L;;;;;N;;;;;
+1691A;BAMUM LETTER PHASE-D MGBEUN;Lo;0;L;;;;;N;;;;;
+1691B;BAMUM LETTER PHASE-D PUUT;Lo;0;L;;;;;N;;;;;
+1691C;BAMUM LETTER PHASE-D MGBIEE;Lo;0;L;;;;;N;;;;;
+1691D;BAMUM LETTER PHASE-D MFO;Lo;0;L;;;;;N;;;;;
+1691E;BAMUM LETTER PHASE-D LUM;Lo;0;L;;;;;N;;;;;
+1691F;BAMUM LETTER PHASE-D NSIEEP;Lo;0;L;;;;;N;;;;;
+16920;BAMUM LETTER PHASE-D MBAA;Lo;0;L;;;;;N;;;;;
+16921;BAMUM LETTER PHASE-D KWAET;Lo;0;L;;;;;N;;;;;
+16922;BAMUM LETTER PHASE-D NYET;Lo;0;L;;;;;N;;;;;
+16923;BAMUM LETTER PHASE-D TEUAEN;Lo;0;L;;;;;N;;;;;
+16924;BAMUM LETTER PHASE-D SOT;Lo;0;L;;;;;N;;;;;
+16925;BAMUM LETTER PHASE-D YUWOQ;Lo;0;L;;;;;N;;;;;
+16926;BAMUM LETTER PHASE-D KEUM;Lo;0;L;;;;;N;;;;;
+16927;BAMUM LETTER PHASE-D RAEM;Lo;0;L;;;;;N;;;;;
+16928;BAMUM LETTER PHASE-D TEEEE;Lo;0;L;;;;;N;;;;;
+16929;BAMUM LETTER PHASE-D NGKEUAEQ;Lo;0;L;;;;;N;;;;;
+1692A;BAMUM LETTER PHASE-D MFEUAE;Lo;0;L;;;;;N;;;;;
+1692B;BAMUM LETTER PHASE-D NSIEET;Lo;0;L;;;;;N;;;;;
+1692C;BAMUM LETTER PHASE-D KEUP;Lo;0;L;;;;;N;;;;;
+1692D;BAMUM LETTER PHASE-D PIP;Lo;0;L;;;;;N;;;;;
+1692E;BAMUM LETTER PHASE-D PEUTAE;Lo;0;L;;;;;N;;;;;
+1692F;BAMUM LETTER PHASE-D NYUE;Lo;0;L;;;;;N;;;;;
+16930;BAMUM LETTER PHASE-D LET;Lo;0;L;;;;;N;;;;;
+16931;BAMUM LETTER PHASE-D NGGAAM;Lo;0;L;;;;;N;;;;;
+16932;BAMUM LETTER PHASE-D MFIEE;Lo;0;L;;;;;N;;;;;
+16933;BAMUM LETTER PHASE-D NGGWAEN;Lo;0;L;;;;;N;;;;;
+16934;BAMUM LETTER PHASE-D YUOM;Lo;0;L;;;;;N;;;;;
+16935;BAMUM LETTER PHASE-D PAP;Lo;0;L;;;;;N;;;;;
+16936;BAMUM LETTER PHASE-D YUOP;Lo;0;L;;;;;N;;;;;
+16937;BAMUM LETTER PHASE-D NDAM;Lo;0;L;;;;;N;;;;;
+16938;BAMUM LETTER PHASE-D NTEUM;Lo;0;L;;;;;N;;;;;
+16939;BAMUM LETTER PHASE-D SUAE;Lo;0;L;;;;;N;;;;;
+1693A;BAMUM LETTER PHASE-D KUN;Lo;0;L;;;;;N;;;;;
+1693B;BAMUM LETTER PHASE-D NGGEUX;Lo;0;L;;;;;N;;;;;
+1693C;BAMUM LETTER PHASE-D NGKIEE;Lo;0;L;;;;;N;;;;;
+1693D;BAMUM LETTER PHASE-D TUOT;Lo;0;L;;;;;N;;;;;
+1693E;BAMUM LETTER PHASE-D MEUN;Lo;0;L;;;;;N;;;;;
+1693F;BAMUM LETTER PHASE-D KUQ;Lo;0;L;;;;;N;;;;;
+16940;BAMUM LETTER PHASE-D NSUM;Lo;0;L;;;;;N;;;;;
+16941;BAMUM LETTER PHASE-D TEUN;Lo;0;L;;;;;N;;;;;
+16942;BAMUM LETTER PHASE-D MAENJET;Lo;0;L;;;;;N;;;;;
+16943;BAMUM LETTER PHASE-D NGGAP;Lo;0;L;;;;;N;;;;;
+16944;BAMUM LETTER PHASE-D LEUM;Lo;0;L;;;;;N;;;;;
+16945;BAMUM LETTER PHASE-D NGGUOM;Lo;0;L;;;;;N;;;;;
+16946;BAMUM LETTER PHASE-D NSHUT;Lo;0;L;;;;;N;;;;;
+16947;BAMUM LETTER PHASE-D NJUEQ;Lo;0;L;;;;;N;;;;;
+16948;BAMUM LETTER PHASE-D GHEUAE;Lo;0;L;;;;;N;;;;;
+16949;BAMUM LETTER PHASE-D KU;Lo;0;L;;;;;N;;;;;
+1694A;BAMUM LETTER PHASE-D REN OLD;Lo;0;L;;;;;N;;;;;
+1694B;BAMUM LETTER PHASE-D TAE;Lo;0;L;;;;;N;;;;;
+1694C;BAMUM LETTER PHASE-D TOQ;Lo;0;L;;;;;N;;;;;
+1694D;BAMUM LETTER PHASE-D NYI;Lo;0;L;;;;;N;;;;;
+1694E;BAMUM LETTER PHASE-D RII;Lo;0;L;;;;;N;;;;;
+1694F;BAMUM LETTER PHASE-D LEEEE;Lo;0;L;;;;;N;;;;;
+16950;BAMUM LETTER PHASE-D MEEEE;Lo;0;L;;;;;N;;;;;
+16951;BAMUM LETTER PHASE-D M;Lo;0;L;;;;;N;;;;;
+16952;BAMUM LETTER PHASE-D SUU;Lo;0;L;;;;;N;;;;;
+16953;BAMUM LETTER PHASE-D MU;Lo;0;L;;;;;N;;;;;
+16954;BAMUM LETTER PHASE-D SHII;Lo;0;L;;;;;N;;;;;
+16955;BAMUM LETTER PHASE-D SHEUX;Lo;0;L;;;;;N;;;;;
+16956;BAMUM LETTER PHASE-D KYEE;Lo;0;L;;;;;N;;;;;
+16957;BAMUM LETTER PHASE-D NU;Lo;0;L;;;;;N;;;;;
+16958;BAMUM LETTER PHASE-D SHU;Lo;0;L;;;;;N;;;;;
+16959;BAMUM LETTER PHASE-D NTEE;Lo;0;L;;;;;N;;;;;
+1695A;BAMUM LETTER PHASE-D PEE;Lo;0;L;;;;;N;;;;;
+1695B;BAMUM LETTER PHASE-D NI;Lo;0;L;;;;;N;;;;;
+1695C;BAMUM LETTER PHASE-D SHOQ;Lo;0;L;;;;;N;;;;;
+1695D;BAMUM LETTER PHASE-D PUQ;Lo;0;L;;;;;N;;;;;
+1695E;BAMUM LETTER PHASE-D MVOP;Lo;0;L;;;;;N;;;;;
+1695F;BAMUM LETTER PHASE-D LOQ;Lo;0;L;;;;;N;;;;;
+16960;BAMUM LETTER PHASE-D REN MUCH;Lo;0;L;;;;;N;;;;;
+16961;BAMUM LETTER PHASE-D TI;Lo;0;L;;;;;N;;;;;
+16962;BAMUM LETTER PHASE-D NTUU;Lo;0;L;;;;;N;;;;;
+16963;BAMUM LETTER PHASE-D MBAA SEVEN;Lo;0;L;;;;;N;;;;;
+16964;BAMUM LETTER PHASE-D SAQ;Lo;0;L;;;;;N;;;;;
+16965;BAMUM LETTER PHASE-D FAA;Lo;0;L;;;;;N;;;;;
+16966;BAMUM LETTER PHASE-E NDAP;Lo;0;L;;;;;N;;;;;
+16967;BAMUM LETTER PHASE-E TOON;Lo;0;L;;;;;N;;;;;
+16968;BAMUM LETTER PHASE-E MBEUM;Lo;0;L;;;;;N;;;;;
+16969;BAMUM LETTER PHASE-E LAP;Lo;0;L;;;;;N;;;;;
+1696A;BAMUM LETTER PHASE-E VOM;Lo;0;L;;;;;N;;;;;
+1696B;BAMUM LETTER PHASE-E LOON;Lo;0;L;;;;;N;;;;;
+1696C;BAMUM LETTER PHASE-E PAA;Lo;0;L;;;;;N;;;;;
+1696D;BAMUM LETTER PHASE-E SOM;Lo;0;L;;;;;N;;;;;
+1696E;BAMUM LETTER PHASE-E RAQ;Lo;0;L;;;;;N;;;;;
+1696F;BAMUM LETTER PHASE-E NSHUOP;Lo;0;L;;;;;N;;;;;
+16970;BAMUM LETTER PHASE-E NDUN;Lo;0;L;;;;;N;;;;;
+16971;BAMUM LETTER PHASE-E PUAE;Lo;0;L;;;;;N;;;;;
+16972;BAMUM LETTER PHASE-E TAM;Lo;0;L;;;;;N;;;;;
+16973;BAMUM LETTER PHASE-E NGKA;Lo;0;L;;;;;N;;;;;
+16974;BAMUM LETTER PHASE-E KPEUX;Lo;0;L;;;;;N;;;;;
+16975;BAMUM LETTER PHASE-E WUO;Lo;0;L;;;;;N;;;;;
+16976;BAMUM LETTER PHASE-E SEE;Lo;0;L;;;;;N;;;;;
+16977;BAMUM LETTER PHASE-E NGGEUAET;Lo;0;L;;;;;N;;;;;
+16978;BAMUM LETTER PHASE-E PAAM;Lo;0;L;;;;;N;;;;;
+16979;BAMUM LETTER PHASE-E TOO;Lo;0;L;;;;;N;;;;;
+1697A;BAMUM LETTER PHASE-E KUOP;Lo;0;L;;;;;N;;;;;
+1697B;BAMUM LETTER PHASE-E LOM;Lo;0;L;;;;;N;;;;;
+1697C;BAMUM LETTER PHASE-E NSHIEE;Lo;0;L;;;;;N;;;;;
+1697D;BAMUM LETTER PHASE-E NGOP;Lo;0;L;;;;;N;;;;;
+1697E;BAMUM LETTER PHASE-E MAEM;Lo;0;L;;;;;N;;;;;
+1697F;BAMUM LETTER PHASE-E NGKEUX;Lo;0;L;;;;;N;;;;;
+16980;BAMUM LETTER PHASE-E NGOQ;Lo;0;L;;;;;N;;;;;
+16981;BAMUM LETTER PHASE-E NSHUE;Lo;0;L;;;;;N;;;;;
+16982;BAMUM LETTER PHASE-E RIMGBA;Lo;0;L;;;;;N;;;;;
+16983;BAMUM LETTER PHASE-E NJEUX;Lo;0;L;;;;;N;;;;;
+16984;BAMUM LETTER PHASE-E PEEM;Lo;0;L;;;;;N;;;;;
+16985;BAMUM LETTER PHASE-E SAA;Lo;0;L;;;;;N;;;;;
+16986;BAMUM LETTER PHASE-E NGGURAE;Lo;0;L;;;;;N;;;;;
+16987;BAMUM LETTER PHASE-E MGBA;Lo;0;L;;;;;N;;;;;
+16988;BAMUM LETTER PHASE-E GHEUX;Lo;0;L;;;;;N;;;;;
+16989;BAMUM LETTER PHASE-E NGKEUAEM;Lo;0;L;;;;;N;;;;;
+1698A;BAMUM LETTER PHASE-E NJAEMLI;Lo;0;L;;;;;N;;;;;
+1698B;BAMUM LETTER PHASE-E MAP;Lo;0;L;;;;;N;;;;;
+1698C;BAMUM LETTER PHASE-E LOOT;Lo;0;L;;;;;N;;;;;
+1698D;BAMUM LETTER PHASE-E NGGEEEE;Lo;0;L;;;;;N;;;;;
+1698E;BAMUM LETTER PHASE-E NDIQ;Lo;0;L;;;;;N;;;;;
+1698F;BAMUM LETTER PHASE-E TAEN NTEUM;Lo;0;L;;;;;N;;;;;
+16990;BAMUM LETTER PHASE-E SET;Lo;0;L;;;;;N;;;;;
+16991;BAMUM LETTER PHASE-E PUM;Lo;0;L;;;;;N;;;;;
+16992;BAMUM LETTER PHASE-E NDAA SOFTNESS;Lo;0;L;;;;;N;;;;;
+16993;BAMUM LETTER PHASE-E NGGUAESHAE NYAM;Lo;0;L;;;;;N;;;;;
+16994;BAMUM LETTER PHASE-E YIEE;Lo;0;L;;;;;N;;;;;
+16995;BAMUM LETTER PHASE-E GHEUN;Lo;0;L;;;;;N;;;;;
+16996;BAMUM LETTER PHASE-E TUAE;Lo;0;L;;;;;N;;;;;
+16997;BAMUM LETTER PHASE-E YEUAE;Lo;0;L;;;;;N;;;;;
+16998;BAMUM LETTER PHASE-E PO;Lo;0;L;;;;;N;;;;;
+16999;BAMUM LETTER PHASE-E TUMAE;Lo;0;L;;;;;N;;;;;
+1699A;BAMUM LETTER PHASE-E KEUAE;Lo;0;L;;;;;N;;;;;
+1699B;BAMUM LETTER PHASE-E SUAEN;Lo;0;L;;;;;N;;;;;
+1699C;BAMUM LETTER PHASE-E TEUAEQ;Lo;0;L;;;;;N;;;;;
+1699D;BAMUM LETTER PHASE-E VEUAE;Lo;0;L;;;;;N;;;;;
+1699E;BAMUM LETTER PHASE-E WEUX;Lo;0;L;;;;;N;;;;;
+1699F;BAMUM LETTER PHASE-E LAAM;Lo;0;L;;;;;N;;;;;
+169A0;BAMUM LETTER PHASE-E PU;Lo;0;L;;;;;N;;;;;
+169A1;BAMUM LETTER PHASE-E TAAQ;Lo;0;L;;;;;N;;;;;
+169A2;BAMUM LETTER PHASE-E GHAAMAE;Lo;0;L;;;;;N;;;;;
+169A3;BAMUM LETTER PHASE-E NGEUREUT;Lo;0;L;;;;;N;;;;;
+169A4;BAMUM LETTER PHASE-E SHEUAEQ;Lo;0;L;;;;;N;;;;;
+169A5;BAMUM LETTER PHASE-E MGBEN;Lo;0;L;;;;;N;;;;;
+169A6;BAMUM LETTER PHASE-E MBEE;Lo;0;L;;;;;N;;;;;
+169A7;BAMUM LETTER PHASE-E NZAQ;Lo;0;L;;;;;N;;;;;
+169A8;BAMUM LETTER PHASE-E NKOM;Lo;0;L;;;;;N;;;;;
+169A9;BAMUM LETTER PHASE-E GBET;Lo;0;L;;;;;N;;;;;
+169AA;BAMUM LETTER PHASE-E TUM;Lo;0;L;;;;;N;;;;;
+169AB;BAMUM LETTER PHASE-E KUET;Lo;0;L;;;;;N;;;;;
+169AC;BAMUM LETTER PHASE-E YAP;Lo;0;L;;;;;N;;;;;
+169AD;BAMUM LETTER PHASE-E NYI CLEAVER;Lo;0;L;;;;;N;;;;;
+169AE;BAMUM LETTER PHASE-E YIT;Lo;0;L;;;;;N;;;;;
+169AF;BAMUM LETTER PHASE-E MFEUQ;Lo;0;L;;;;;N;;;;;
+169B0;BAMUM LETTER PHASE-E NDIAQ;Lo;0;L;;;;;N;;;;;
+169B1;BAMUM LETTER PHASE-E PIEEQ;Lo;0;L;;;;;N;;;;;
+169B2;BAMUM LETTER PHASE-E YUEQ;Lo;0;L;;;;;N;;;;;
+169B3;BAMUM LETTER PHASE-E LEUAEM;Lo;0;L;;;;;N;;;;;
+169B4;BAMUM LETTER PHASE-E FUE;Lo;0;L;;;;;N;;;;;
+169B5;BAMUM LETTER PHASE-E GBEUX;Lo;0;L;;;;;N;;;;;
+169B6;BAMUM LETTER PHASE-E NGKUP;Lo;0;L;;;;;N;;;;;
+169B7;BAMUM LETTER PHASE-E KET;Lo;0;L;;;;;N;;;;;
+169B8;BAMUM LETTER PHASE-E MAE;Lo;0;L;;;;;N;;;;;
+169B9;BAMUM LETTER PHASE-E NGKAAMI;Lo;0;L;;;;;N;;;;;
+169BA;BAMUM LETTER PHASE-E GHET;Lo;0;L;;;;;N;;;;;
+169BB;BAMUM LETTER PHASE-E FA;Lo;0;L;;;;;N;;;;;
+169BC;BAMUM LETTER PHASE-E NTUM;Lo;0;L;;;;;N;;;;;
+169BD;BAMUM LETTER PHASE-E PEUT;Lo;0;L;;;;;N;;;;;
+169BE;BAMUM LETTER PHASE-E YEUM;Lo;0;L;;;;;N;;;;;
+169BF;BAMUM LETTER PHASE-E NGGEUAE;Lo;0;L;;;;;N;;;;;
+169C0;BAMUM LETTER PHASE-E NYI BETWEEN;Lo;0;L;;;;;N;;;;;
+169C1;BAMUM LETTER PHASE-E NZUQ;Lo;0;L;;;;;N;;;;;
+169C2;BAMUM LETTER PHASE-E POON;Lo;0;L;;;;;N;;;;;
+169C3;BAMUM LETTER PHASE-E MIEE;Lo;0;L;;;;;N;;;;;
+169C4;BAMUM LETTER PHASE-E FUET;Lo;0;L;;;;;N;;;;;
+169C5;BAMUM LETTER PHASE-E NAE;Lo;0;L;;;;;N;;;;;
+169C6;BAMUM LETTER PHASE-E MUAE;Lo;0;L;;;;;N;;;;;
+169C7;BAMUM LETTER PHASE-E GHEUAE;Lo;0;L;;;;;N;;;;;
+169C8;BAMUM LETTER PHASE-E FU I;Lo;0;L;;;;;N;;;;;
+169C9;BAMUM LETTER PHASE-E MVI;Lo;0;L;;;;;N;;;;;
+169CA;BAMUM LETTER PHASE-E PUAQ;Lo;0;L;;;;;N;;;;;
+169CB;BAMUM LETTER PHASE-E NGKUM;Lo;0;L;;;;;N;;;;;
+169CC;BAMUM LETTER PHASE-E KUT;Lo;0;L;;;;;N;;;;;
+169CD;BAMUM LETTER PHASE-E PIET;Lo;0;L;;;;;N;;;;;
+169CE;BAMUM LETTER PHASE-E NTAP;Lo;0;L;;;;;N;;;;;
+169CF;BAMUM LETTER PHASE-E YEUAET;Lo;0;L;;;;;N;;;;;
+169D0;BAMUM LETTER PHASE-E NGGUP;Lo;0;L;;;;;N;;;;;
+169D1;BAMUM LETTER PHASE-E PA PEOPLE;Lo;0;L;;;;;N;;;;;
+169D2;BAMUM LETTER PHASE-E FU CALL;Lo;0;L;;;;;N;;;;;
+169D3;BAMUM LETTER PHASE-E FOM;Lo;0;L;;;;;N;;;;;
+169D4;BAMUM LETTER PHASE-E NJEE;Lo;0;L;;;;;N;;;;;
+169D5;BAMUM LETTER PHASE-E A;Lo;0;L;;;;;N;;;;;
+169D6;BAMUM LETTER PHASE-E TOQ;Lo;0;L;;;;;N;;;;;
+169D7;BAMUM LETTER PHASE-E O;Lo;0;L;;;;;N;;;;;
+169D8;BAMUM LETTER PHASE-E I;Lo;0;L;;;;;N;;;;;
+169D9;BAMUM LETTER PHASE-E LAQ;Lo;0;L;;;;;N;;;;;
+169DA;BAMUM LETTER PHASE-E PA PLURAL;Lo;0;L;;;;;N;;;;;
+169DB;BAMUM LETTER PHASE-E TAA;Lo;0;L;;;;;N;;;;;
+169DC;BAMUM LETTER PHASE-E TAQ;Lo;0;L;;;;;N;;;;;
+169DD;BAMUM LETTER PHASE-E NDAA MY HOUSE;Lo;0;L;;;;;N;;;;;
+169DE;BAMUM LETTER PHASE-E SHIQ;Lo;0;L;;;;;N;;;;;
+169DF;BAMUM LETTER PHASE-E YEUX;Lo;0;L;;;;;N;;;;;
+169E0;BAMUM LETTER PHASE-E NGUAE;Lo;0;L;;;;;N;;;;;
+169E1;BAMUM LETTER PHASE-E YUAEN;Lo;0;L;;;;;N;;;;;
+169E2;BAMUM LETTER PHASE-E YOQ SWIMMING;Lo;0;L;;;;;N;;;;;
+169E3;BAMUM LETTER PHASE-E YOQ COVER;Lo;0;L;;;;;N;;;;;
+169E4;BAMUM LETTER PHASE-E YUQ;Lo;0;L;;;;;N;;;;;
+169E5;BAMUM LETTER PHASE-E YUN;Lo;0;L;;;;;N;;;;;
+169E6;BAMUM LETTER PHASE-E KEUX;Lo;0;L;;;;;N;;;;;
+169E7;BAMUM LETTER PHASE-E PEUX;Lo;0;L;;;;;N;;;;;
+169E8;BAMUM LETTER PHASE-E NJEE EPOCH;Lo;0;L;;;;;N;;;;;
+169E9;BAMUM LETTER PHASE-E PUE;Lo;0;L;;;;;N;;;;;
+169EA;BAMUM LETTER PHASE-E WUE;Lo;0;L;;;;;N;;;;;
+169EB;BAMUM LETTER PHASE-E FEE;Lo;0;L;;;;;N;;;;;
+169EC;BAMUM LETTER PHASE-E VEE;Lo;0;L;;;;;N;;;;;
+169ED;BAMUM LETTER PHASE-E LU;Lo;0;L;;;;;N;;;;;
+169EE;BAMUM LETTER PHASE-E MI;Lo;0;L;;;;;N;;;;;
+169EF;BAMUM LETTER PHASE-E REUX;Lo;0;L;;;;;N;;;;;
+169F0;BAMUM LETTER PHASE-E RAE;Lo;0;L;;;;;N;;;;;
+169F1;BAMUM LETTER PHASE-E NGUAET;Lo;0;L;;;;;N;;;;;
+169F2;BAMUM LETTER PHASE-E NGA;Lo;0;L;;;;;N;;;;;
+169F3;BAMUM LETTER PHASE-E SHO;Lo;0;L;;;;;N;;;;;
+169F4;BAMUM LETTER PHASE-E SHOQ;Lo;0;L;;;;;N;;;;;
+169F5;BAMUM LETTER PHASE-E FU REMEDY;Lo;0;L;;;;;N;;;;;
+169F6;BAMUM LETTER PHASE-E NA;Lo;0;L;;;;;N;;;;;
+169F7;BAMUM LETTER PHASE-E PI;Lo;0;L;;;;;N;;;;;
+169F8;BAMUM LETTER PHASE-E LOQ;Lo;0;L;;;;;N;;;;;
+169F9;BAMUM LETTER PHASE-E KO;Lo;0;L;;;;;N;;;;;
+169FA;BAMUM LETTER PHASE-E MEN;Lo;0;L;;;;;N;;;;;
+169FB;BAMUM LETTER PHASE-E MA;Lo;0;L;;;;;N;;;;;
+169FC;BAMUM LETTER PHASE-E MAQ;Lo;0;L;;;;;N;;;;;
+169FD;BAMUM LETTER PHASE-E TEU;Lo;0;L;;;;;N;;;;;
+169FE;BAMUM LETTER PHASE-E KI;Lo;0;L;;;;;N;;;;;
+169FF;BAMUM LETTER PHASE-E MON;Lo;0;L;;;;;N;;;;;
+16A00;BAMUM LETTER PHASE-E TEN;Lo;0;L;;;;;N;;;;;
+16A01;BAMUM LETTER PHASE-E FAQ;Lo;0;L;;;;;N;;;;;
+16A02;BAMUM LETTER PHASE-E GHOM;Lo;0;L;;;;;N;;;;;
+16A03;BAMUM LETTER PHASE-F KA;Lo;0;L;;;;;N;;;;;
+16A04;BAMUM LETTER PHASE-F U;Lo;0;L;;;;;N;;;;;
+16A05;BAMUM LETTER PHASE-F KU;Lo;0;L;;;;;N;;;;;
+16A06;BAMUM LETTER PHASE-F EE;Lo;0;L;;;;;N;;;;;
+16A07;BAMUM LETTER PHASE-F REE;Lo;0;L;;;;;N;;;;;
+16A08;BAMUM LETTER PHASE-F TAE;Lo;0;L;;;;;N;;;;;
+16A09;BAMUM LETTER PHASE-F NYI;Lo;0;L;;;;;N;;;;;
+16A0A;BAMUM LETTER PHASE-F LA;Lo;0;L;;;;;N;;;;;
+16A0B;BAMUM LETTER PHASE-F RII;Lo;0;L;;;;;N;;;;;
+16A0C;BAMUM LETTER PHASE-F RIEE;Lo;0;L;;;;;N;;;;;
+16A0D;BAMUM LETTER PHASE-F MEEEE;Lo;0;L;;;;;N;;;;;
+16A0E;BAMUM LETTER PHASE-F TAA;Lo;0;L;;;;;N;;;;;
+16A0F;BAMUM LETTER PHASE-F NDAA;Lo;0;L;;;;;N;;;;;
+16A10;BAMUM LETTER PHASE-F NJAEM;Lo;0;L;;;;;N;;;;;
+16A11;BAMUM LETTER PHASE-F M;Lo;0;L;;;;;N;;;;;
+16A12;BAMUM LETTER PHASE-F SUU;Lo;0;L;;;;;N;;;;;
+16A13;BAMUM LETTER PHASE-F SHII;Lo;0;L;;;;;N;;;;;
+16A14;BAMUM LETTER PHASE-F SI;Lo;0;L;;;;;N;;;;;
+16A15;BAMUM LETTER PHASE-F SEUX;Lo;0;L;;;;;N;;;;;
+16A16;BAMUM LETTER PHASE-F KYEE;Lo;0;L;;;;;N;;;;;
+16A17;BAMUM LETTER PHASE-F KET;Lo;0;L;;;;;N;;;;;
+16A18;BAMUM LETTER PHASE-F NUAE;Lo;0;L;;;;;N;;;;;
+16A19;BAMUM LETTER PHASE-F NU;Lo;0;L;;;;;N;;;;;
+16A1A;BAMUM LETTER PHASE-F NJUAE;Lo;0;L;;;;;N;;;;;
+16A1B;BAMUM LETTER PHASE-F YOQ;Lo;0;L;;;;;N;;;;;
+16A1C;BAMUM LETTER PHASE-F SHU;Lo;0;L;;;;;N;;;;;
+16A1D;BAMUM LETTER PHASE-F YA;Lo;0;L;;;;;N;;;;;
+16A1E;BAMUM LETTER PHASE-F NSHA;Lo;0;L;;;;;N;;;;;
+16A1F;BAMUM LETTER PHASE-F PEUX;Lo;0;L;;;;;N;;;;;
+16A20;BAMUM LETTER PHASE-F NTEE;Lo;0;L;;;;;N;;;;;
+16A21;BAMUM LETTER PHASE-F WUE;Lo;0;L;;;;;N;;;;;
+16A22;BAMUM LETTER PHASE-F PEE;Lo;0;L;;;;;N;;;;;
+16A23;BAMUM LETTER PHASE-F RU;Lo;0;L;;;;;N;;;;;
+16A24;BAMUM LETTER PHASE-F NI;Lo;0;L;;;;;N;;;;;
+16A25;BAMUM LETTER PHASE-F REUX;Lo;0;L;;;;;N;;;;;
+16A26;BAMUM LETTER PHASE-F KEN;Lo;0;L;;;;;N;;;;;
+16A27;BAMUM LETTER PHASE-F NGKWAEN;Lo;0;L;;;;;N;;;;;
+16A28;BAMUM LETTER PHASE-F NGGA;Lo;0;L;;;;;N;;;;;
+16A29;BAMUM LETTER PHASE-F SHO;Lo;0;L;;;;;N;;;;;
+16A2A;BAMUM LETTER PHASE-F PUAE;Lo;0;L;;;;;N;;;;;
+16A2B;BAMUM LETTER PHASE-F FOM;Lo;0;L;;;;;N;;;;;
+16A2C;BAMUM LETTER PHASE-F WA;Lo;0;L;;;;;N;;;;;
+16A2D;BAMUM LETTER PHASE-F LI;Lo;0;L;;;;;N;;;;;
+16A2E;BAMUM LETTER PHASE-F LOQ;Lo;0;L;;;;;N;;;;;
+16A2F;BAMUM LETTER PHASE-F KO;Lo;0;L;;;;;N;;;;;
+16A30;BAMUM LETTER PHASE-F MBEN;Lo;0;L;;;;;N;;;;;
+16A31;BAMUM LETTER PHASE-F REN;Lo;0;L;;;;;N;;;;;
+16A32;BAMUM LETTER PHASE-F MA;Lo;0;L;;;;;N;;;;;
+16A33;BAMUM LETTER PHASE-F MO;Lo;0;L;;;;;N;;;;;
+16A34;BAMUM LETTER PHASE-F MBAA;Lo;0;L;;;;;N;;;;;
+16A35;BAMUM LETTER PHASE-F TET;Lo;0;L;;;;;N;;;;;
+16A36;BAMUM LETTER PHASE-F KPA;Lo;0;L;;;;;N;;;;;
+16A37;BAMUM LETTER PHASE-F SAMBA;Lo;0;L;;;;;N;;;;;
+16A38;BAMUM LETTER PHASE-F VUEQ;Lo;0;L;;;;;N;;;;;
+16F00;MIAO LETTER PA;Lo;0;L;;;;;N;;;;;
+16F01;MIAO LETTER BA;Lo;0;L;;;;;N;;;;;
+16F02;MIAO LETTER YI PA;Lo;0;L;;;;;N;;;;;
+16F03;MIAO LETTER PLA;Lo;0;L;;;;;N;;;;;
+16F04;MIAO LETTER MA;Lo;0;L;;;;;N;;;;;
+16F05;MIAO LETTER MHA;Lo;0;L;;;;;N;;;;;
+16F06;MIAO LETTER ARCHAIC MA;Lo;0;L;;;;;N;;;;;
+16F07;MIAO LETTER FA;Lo;0;L;;;;;N;;;;;
+16F08;MIAO LETTER VA;Lo;0;L;;;;;N;;;;;
+16F09;MIAO LETTER VFA;Lo;0;L;;;;;N;;;;;
+16F0A;MIAO LETTER TA;Lo;0;L;;;;;N;;;;;
+16F0B;MIAO LETTER DA;Lo;0;L;;;;;N;;;;;
+16F0C;MIAO LETTER YI TTA;Lo;0;L;;;;;N;;;;;
+16F0D;MIAO LETTER YI TA;Lo;0;L;;;;;N;;;;;
+16F0E;MIAO LETTER TTA;Lo;0;L;;;;;N;;;;;
+16F0F;MIAO LETTER DDA;Lo;0;L;;;;;N;;;;;
+16F10;MIAO LETTER NA;Lo;0;L;;;;;N;;;;;
+16F11;MIAO LETTER NHA;Lo;0;L;;;;;N;;;;;
+16F12;MIAO LETTER YI NNA;Lo;0;L;;;;;N;;;;;
+16F13;MIAO LETTER ARCHAIC NA;Lo;0;L;;;;;N;;;;;
+16F14;MIAO LETTER NNA;Lo;0;L;;;;;N;;;;;
+16F15;MIAO LETTER NNHA;Lo;0;L;;;;;N;;;;;
+16F16;MIAO LETTER LA;Lo;0;L;;;;;N;;;;;
+16F17;MIAO LETTER LYA;Lo;0;L;;;;;N;;;;;
+16F18;MIAO LETTER LHA;Lo;0;L;;;;;N;;;;;
+16F19;MIAO LETTER LHYA;Lo;0;L;;;;;N;;;;;
+16F1A;MIAO LETTER TLHA;Lo;0;L;;;;;N;;;;;
+16F1B;MIAO LETTER DLHA;Lo;0;L;;;;;N;;;;;
+16F1C;MIAO LETTER TLHYA;Lo;0;L;;;;;N;;;;;
+16F1D;MIAO LETTER DLHYA;Lo;0;L;;;;;N;;;;;
+16F1E;MIAO LETTER KA;Lo;0;L;;;;;N;;;;;
+16F1F;MIAO LETTER GA;Lo;0;L;;;;;N;;;;;
+16F20;MIAO LETTER YI KA;Lo;0;L;;;;;N;;;;;
+16F21;MIAO LETTER QA;Lo;0;L;;;;;N;;;;;
+16F22;MIAO LETTER QGA;Lo;0;L;;;;;N;;;;;
+16F23;MIAO LETTER NGA;Lo;0;L;;;;;N;;;;;
+16F24;MIAO LETTER NGHA;Lo;0;L;;;;;N;;;;;
+16F25;MIAO LETTER ARCHAIC NGA;Lo;0;L;;;;;N;;;;;
+16F26;MIAO LETTER HA;Lo;0;L;;;;;N;;;;;
+16F27;MIAO LETTER XA;Lo;0;L;;;;;N;;;;;
+16F28;MIAO LETTER GHA;Lo;0;L;;;;;N;;;;;
+16F29;MIAO LETTER GHHA;Lo;0;L;;;;;N;;;;;
+16F2A;MIAO LETTER TSSA;Lo;0;L;;;;;N;;;;;
+16F2B;MIAO LETTER DZZA;Lo;0;L;;;;;N;;;;;
+16F2C;MIAO LETTER NYA;Lo;0;L;;;;;N;;;;;
+16F2D;MIAO LETTER NYHA;Lo;0;L;;;;;N;;;;;
+16F2E;MIAO LETTER TSHA;Lo;0;L;;;;;N;;;;;
+16F2F;MIAO LETTER DZHA;Lo;0;L;;;;;N;;;;;
+16F30;MIAO LETTER YI TSHA;Lo;0;L;;;;;N;;;;;
+16F31;MIAO LETTER YI DZHA;Lo;0;L;;;;;N;;;;;
+16F32;MIAO LETTER REFORMED TSHA;Lo;0;L;;;;;N;;;;;
+16F33;MIAO LETTER SHA;Lo;0;L;;;;;N;;;;;
+16F34;MIAO LETTER SSA;Lo;0;L;;;;;N;;;;;
+16F35;MIAO LETTER ZHA;Lo;0;L;;;;;N;;;;;
+16F36;MIAO LETTER ZSHA;Lo;0;L;;;;;N;;;;;
+16F37;MIAO LETTER TSA;Lo;0;L;;;;;N;;;;;
+16F38;MIAO LETTER DZA;Lo;0;L;;;;;N;;;;;
+16F39;MIAO LETTER YI TSA;Lo;0;L;;;;;N;;;;;
+16F3A;MIAO LETTER SA;Lo;0;L;;;;;N;;;;;
+16F3B;MIAO LETTER ZA;Lo;0;L;;;;;N;;;;;
+16F3C;MIAO LETTER ZSA;Lo;0;L;;;;;N;;;;;
+16F3D;MIAO LETTER ZZA;Lo;0;L;;;;;N;;;;;
+16F3E;MIAO LETTER ZZSA;Lo;0;L;;;;;N;;;;;
+16F3F;MIAO LETTER ARCHAIC ZZA;Lo;0;L;;;;;N;;;;;
+16F40;MIAO LETTER ZZYA;Lo;0;L;;;;;N;;;;;
+16F41;MIAO LETTER ZZSYA;Lo;0;L;;;;;N;;;;;
+16F42;MIAO LETTER WA;Lo;0;L;;;;;N;;;;;
+16F43;MIAO LETTER AH;Lo;0;L;;;;;N;;;;;
+16F44;MIAO LETTER HHA;Lo;0;L;;;;;N;;;;;
+16F50;MIAO LETTER NASALIZATION;Lo;0;L;;;;;N;;;;;
+16F51;MIAO SIGN ASPIRATION;Mc;0;L;;;;;N;;;;;
+16F52;MIAO SIGN REFORMED VOICING;Mc;0;L;;;;;N;;;;;
+16F53;MIAO SIGN REFORMED ASPIRATION;Mc;0;L;;;;;N;;;;;
+16F54;MIAO VOWEL SIGN A;Mc;0;L;;;;;N;;;;;
+16F55;MIAO VOWEL SIGN AA;Mc;0;L;;;;;N;;;;;
+16F56;MIAO VOWEL SIGN AHH;Mc;0;L;;;;;N;;;;;
+16F57;MIAO VOWEL SIGN AN;Mc;0;L;;;;;N;;;;;
+16F58;MIAO VOWEL SIGN ANG;Mc;0;L;;;;;N;;;;;
+16F59;MIAO VOWEL SIGN O;Mc;0;L;;;;;N;;;;;
+16F5A;MIAO VOWEL SIGN OO;Mc;0;L;;;;;N;;;;;
+16F5B;MIAO VOWEL SIGN WO;Mc;0;L;;;;;N;;;;;
+16F5C;MIAO VOWEL SIGN W;Mc;0;L;;;;;N;;;;;
+16F5D;MIAO VOWEL SIGN E;Mc;0;L;;;;;N;;;;;
+16F5E;MIAO VOWEL SIGN EN;Mc;0;L;;;;;N;;;;;
+16F5F;MIAO VOWEL SIGN ENG;Mc;0;L;;;;;N;;;;;
+16F60;MIAO VOWEL SIGN OEY;Mc;0;L;;;;;N;;;;;
+16F61;MIAO VOWEL SIGN I;Mc;0;L;;;;;N;;;;;
+16F62;MIAO VOWEL SIGN IA;Mc;0;L;;;;;N;;;;;
+16F63;MIAO VOWEL SIGN IAN;Mc;0;L;;;;;N;;;;;
+16F64;MIAO VOWEL SIGN IANG;Mc;0;L;;;;;N;;;;;
+16F65;MIAO VOWEL SIGN IO;Mc;0;L;;;;;N;;;;;
+16F66;MIAO VOWEL SIGN IE;Mc;0;L;;;;;N;;;;;
+16F67;MIAO VOWEL SIGN II;Mc;0;L;;;;;N;;;;;
+16F68;MIAO VOWEL SIGN IU;Mc;0;L;;;;;N;;;;;
+16F69;MIAO VOWEL SIGN ING;Mc;0;L;;;;;N;;;;;
+16F6A;MIAO VOWEL SIGN U;Mc;0;L;;;;;N;;;;;
+16F6B;MIAO VOWEL SIGN UA;Mc;0;L;;;;;N;;;;;
+16F6C;MIAO VOWEL SIGN UAN;Mc;0;L;;;;;N;;;;;
+16F6D;MIAO VOWEL SIGN UANG;Mc;0;L;;;;;N;;;;;
+16F6E;MIAO VOWEL SIGN UU;Mc;0;L;;;;;N;;;;;
+16F6F;MIAO VOWEL SIGN UEI;Mc;0;L;;;;;N;;;;;
+16F70;MIAO VOWEL SIGN UNG;Mc;0;L;;;;;N;;;;;
+16F71;MIAO VOWEL SIGN Y;Mc;0;L;;;;;N;;;;;
+16F72;MIAO VOWEL SIGN YI;Mc;0;L;;;;;N;;;;;
+16F73;MIAO VOWEL SIGN AE;Mc;0;L;;;;;N;;;;;
+16F74;MIAO VOWEL SIGN AEE;Mc;0;L;;;;;N;;;;;
+16F75;MIAO VOWEL SIGN ERR;Mc;0;L;;;;;N;;;;;
+16F76;MIAO VOWEL SIGN ROUNDED ERR;Mc;0;L;;;;;N;;;;;
+16F77;MIAO VOWEL SIGN ER;Mc;0;L;;;;;N;;;;;
+16F78;MIAO VOWEL SIGN ROUNDED ER;Mc;0;L;;;;;N;;;;;
+16F79;MIAO VOWEL SIGN AI;Mc;0;L;;;;;N;;;;;
+16F7A;MIAO VOWEL SIGN EI;Mc;0;L;;;;;N;;;;;
+16F7B;MIAO VOWEL SIGN AU;Mc;0;L;;;;;N;;;;;
+16F7C;MIAO VOWEL SIGN OU;Mc;0;L;;;;;N;;;;;
+16F7D;MIAO VOWEL SIGN N;Mc;0;L;;;;;N;;;;;
+16F7E;MIAO VOWEL SIGN NG;Mc;0;L;;;;;N;;;;;
+16F8F;MIAO TONE RIGHT;Mn;0;NSM;;;;;N;;;;;
+16F90;MIAO TONE TOP RIGHT;Mn;0;NSM;;;;;N;;;;;
+16F91;MIAO TONE ABOVE;Mn;0;NSM;;;;;N;;;;;
+16F92;MIAO TONE BELOW;Mn;0;NSM;;;;;N;;;;;
+16F93;MIAO LETTER TONE-2;Lm;0;L;;;;;N;;;;;
+16F94;MIAO LETTER TONE-3;Lm;0;L;;;;;N;;;;;
+16F95;MIAO LETTER TONE-4;Lm;0;L;;;;;N;;;;;
+16F96;MIAO LETTER TONE-5;Lm;0;L;;;;;N;;;;;
+16F97;MIAO LETTER TONE-6;Lm;0;L;;;;;N;;;;;
+16F98;MIAO LETTER TONE-7;Lm;0;L;;;;;N;;;;;
+16F99;MIAO LETTER TONE-8;Lm;0;L;;;;;N;;;;;
+16F9A;MIAO LETTER REFORMED TONE-1;Lm;0;L;;;;;N;;;;;
+16F9B;MIAO LETTER REFORMED TONE-2;Lm;0;L;;;;;N;;;;;
+16F9C;MIAO LETTER REFORMED TONE-4;Lm;0;L;;;;;N;;;;;
+16F9D;MIAO LETTER REFORMED TONE-5;Lm;0;L;;;;;N;;;;;
+16F9E;MIAO LETTER REFORMED TONE-6;Lm;0;L;;;;;N;;;;;
+16F9F;MIAO LETTER REFORMED TONE-8;Lm;0;L;;;;;N;;;;;
+1B000;KATAKANA LETTER ARCHAIC E;Lo;0;L;;;;;N;;;;;
+1B001;HIRAGANA LETTER ARCHAIC YE;Lo;0;L;;;;;N;;;;;
+1D000;BYZANTINE MUSICAL SYMBOL PSILI;So;0;L;;;;;N;;;;;
+1D001;BYZANTINE MUSICAL SYMBOL DASEIA;So;0;L;;;;;N;;;;;
+1D002;BYZANTINE MUSICAL SYMBOL PERISPOMENI;So;0;L;;;;;N;;;;;
+1D003;BYZANTINE MUSICAL SYMBOL OXEIA EKFONITIKON;So;0;L;;;;;N;;;;;
+1D004;BYZANTINE MUSICAL SYMBOL OXEIA DIPLI;So;0;L;;;;;N;;;;;
+1D005;BYZANTINE MUSICAL SYMBOL VAREIA EKFONITIKON;So;0;L;;;;;N;;;;;
+1D006;BYZANTINE MUSICAL SYMBOL VAREIA DIPLI;So;0;L;;;;;N;;;;;
+1D007;BYZANTINE MUSICAL SYMBOL KATHISTI;So;0;L;;;;;N;;;;;
+1D008;BYZANTINE MUSICAL SYMBOL SYRMATIKI;So;0;L;;;;;N;;;;;
+1D009;BYZANTINE MUSICAL SYMBOL PARAKLITIKI;So;0;L;;;;;N;;;;;
+1D00A;BYZANTINE MUSICAL SYMBOL YPOKRISIS;So;0;L;;;;;N;;;;;
+1D00B;BYZANTINE MUSICAL SYMBOL YPOKRISIS DIPLI;So;0;L;;;;;N;;;;;
+1D00C;BYZANTINE MUSICAL SYMBOL KREMASTI;So;0;L;;;;;N;;;;;
+1D00D;BYZANTINE MUSICAL SYMBOL APESO EKFONITIKON;So;0;L;;;;;N;;;;;
+1D00E;BYZANTINE MUSICAL SYMBOL EXO EKFONITIKON;So;0;L;;;;;N;;;;;
+1D00F;BYZANTINE MUSICAL SYMBOL TELEIA;So;0;L;;;;;N;;;;;
+1D010;BYZANTINE MUSICAL SYMBOL KENTIMATA;So;0;L;;;;;N;;;;;
+1D011;BYZANTINE MUSICAL SYMBOL APOSTROFOS;So;0;L;;;;;N;;;;;
+1D012;BYZANTINE MUSICAL SYMBOL APOSTROFOS DIPLI;So;0;L;;;;;N;;;;;
+1D013;BYZANTINE MUSICAL SYMBOL SYNEVMA;So;0;L;;;;;N;;;;;
+1D014;BYZANTINE MUSICAL SYMBOL THITA;So;0;L;;;;;N;;;;;
+1D015;BYZANTINE MUSICAL SYMBOL OLIGON ARCHAION;So;0;L;;;;;N;;;;;
+1D016;BYZANTINE MUSICAL SYMBOL GORGON ARCHAION;So;0;L;;;;;N;;;;;
+1D017;BYZANTINE MUSICAL SYMBOL PSILON;So;0;L;;;;;N;;;;;
+1D018;BYZANTINE MUSICAL SYMBOL CHAMILON;So;0;L;;;;;N;;;;;
+1D019;BYZANTINE MUSICAL SYMBOL VATHY;So;0;L;;;;;N;;;;;
+1D01A;BYZANTINE MUSICAL SYMBOL ISON ARCHAION;So;0;L;;;;;N;;;;;
+1D01B;BYZANTINE MUSICAL SYMBOL KENTIMA ARCHAION;So;0;L;;;;;N;;;;;
+1D01C;BYZANTINE MUSICAL SYMBOL KENTIMATA ARCHAION;So;0;L;;;;;N;;;;;
+1D01D;BYZANTINE MUSICAL SYMBOL SAXIMATA;So;0;L;;;;;N;;;;;
+1D01E;BYZANTINE MUSICAL SYMBOL PARICHON;So;0;L;;;;;N;;;;;
+1D01F;BYZANTINE MUSICAL SYMBOL STAVROS APODEXIA;So;0;L;;;;;N;;;;;
+1D020;BYZANTINE MUSICAL SYMBOL OXEIAI ARCHAION;So;0;L;;;;;N;;;;;
+1D021;BYZANTINE MUSICAL SYMBOL VAREIAI ARCHAION;So;0;L;;;;;N;;;;;
+1D022;BYZANTINE MUSICAL SYMBOL APODERMA ARCHAION;So;0;L;;;;;N;;;;;
+1D023;BYZANTINE MUSICAL SYMBOL APOTHEMA;So;0;L;;;;;N;;;;;
+1D024;BYZANTINE MUSICAL SYMBOL KLASMA;So;0;L;;;;;N;;;;;
+1D025;BYZANTINE MUSICAL SYMBOL REVMA;So;0;L;;;;;N;;;;;
+1D026;BYZANTINE MUSICAL SYMBOL PIASMA ARCHAION;So;0;L;;;;;N;;;;;
+1D027;BYZANTINE MUSICAL SYMBOL TINAGMA;So;0;L;;;;;N;;;;;
+1D028;BYZANTINE MUSICAL SYMBOL ANATRICHISMA;So;0;L;;;;;N;;;;;
+1D029;BYZANTINE MUSICAL SYMBOL SEISMA;So;0;L;;;;;N;;;;;
+1D02A;BYZANTINE MUSICAL SYMBOL SYNAGMA ARCHAION;So;0;L;;;;;N;;;;;
+1D02B;BYZANTINE MUSICAL SYMBOL SYNAGMA META STAVROU;So;0;L;;;;;N;;;;;
+1D02C;BYZANTINE MUSICAL SYMBOL OYRANISMA ARCHAION;So;0;L;;;;;N;;;;;
+1D02D;BYZANTINE MUSICAL SYMBOL THEMA;So;0;L;;;;;N;;;;;
+1D02E;BYZANTINE MUSICAL SYMBOL LEMOI;So;0;L;;;;;N;;;;;
+1D02F;BYZANTINE MUSICAL SYMBOL DYO;So;0;L;;;;;N;;;;;
+1D030;BYZANTINE MUSICAL SYMBOL TRIA;So;0;L;;;;;N;;;;;
+1D031;BYZANTINE MUSICAL SYMBOL TESSERA;So;0;L;;;;;N;;;;;
+1D032;BYZANTINE MUSICAL SYMBOL KRATIMATA;So;0;L;;;;;N;;;;;
+1D033;BYZANTINE MUSICAL SYMBOL APESO EXO NEO;So;0;L;;;;;N;;;;;
+1D034;BYZANTINE MUSICAL SYMBOL FTHORA ARCHAION;So;0;L;;;;;N;;;;;
+1D035;BYZANTINE MUSICAL SYMBOL IMIFTHORA;So;0;L;;;;;N;;;;;
+1D036;BYZANTINE MUSICAL SYMBOL TROMIKON ARCHAION;So;0;L;;;;;N;;;;;
+1D037;BYZANTINE MUSICAL SYMBOL KATAVA TROMIKON;So;0;L;;;;;N;;;;;
+1D038;BYZANTINE MUSICAL SYMBOL PELASTON;So;0;L;;;;;N;;;;;
+1D039;BYZANTINE MUSICAL SYMBOL PSIFISTON;So;0;L;;;;;N;;;;;
+1D03A;BYZANTINE MUSICAL SYMBOL KONTEVMA;So;0;L;;;;;N;;;;;
+1D03B;BYZANTINE MUSICAL SYMBOL CHOREVMA ARCHAION;So;0;L;;;;;N;;;;;
+1D03C;BYZANTINE MUSICAL SYMBOL RAPISMA;So;0;L;;;;;N;;;;;
+1D03D;BYZANTINE MUSICAL SYMBOL PARAKALESMA ARCHAION;So;0;L;;;;;N;;;;;
+1D03E;BYZANTINE MUSICAL SYMBOL PARAKLITIKI ARCHAION;So;0;L;;;;;N;;;;;
+1D03F;BYZANTINE MUSICAL SYMBOL ICHADIN;So;0;L;;;;;N;;;;;
+1D040;BYZANTINE MUSICAL SYMBOL NANA;So;0;L;;;;;N;;;;;
+1D041;BYZANTINE MUSICAL SYMBOL PETASMA;So;0;L;;;;;N;;;;;
+1D042;BYZANTINE MUSICAL SYMBOL KONTEVMA ALLO;So;0;L;;;;;N;;;;;
+1D043;BYZANTINE MUSICAL SYMBOL TROMIKON ALLO;So;0;L;;;;;N;;;;;
+1D044;BYZANTINE MUSICAL SYMBOL STRAGGISMATA;So;0;L;;;;;N;;;;;
+1D045;BYZANTINE MUSICAL SYMBOL GRONTHISMATA;So;0;L;;;;;N;;;;;
+1D046;BYZANTINE MUSICAL SYMBOL ISON NEO;So;0;L;;;;;N;;;;;
+1D047;BYZANTINE MUSICAL SYMBOL OLIGON NEO;So;0;L;;;;;N;;;;;
+1D048;BYZANTINE MUSICAL SYMBOL OXEIA NEO;So;0;L;;;;;N;;;;;
+1D049;BYZANTINE MUSICAL SYMBOL PETASTI;So;0;L;;;;;N;;;;;
+1D04A;BYZANTINE MUSICAL SYMBOL KOUFISMA;So;0;L;;;;;N;;;;;
+1D04B;BYZANTINE MUSICAL SYMBOL PETASTOKOUFISMA;So;0;L;;;;;N;;;;;
+1D04C;BYZANTINE MUSICAL SYMBOL KRATIMOKOUFISMA;So;0;L;;;;;N;;;;;
+1D04D;BYZANTINE MUSICAL SYMBOL PELASTON NEO;So;0;L;;;;;N;;;;;
+1D04E;BYZANTINE MUSICAL SYMBOL KENTIMATA NEO ANO;So;0;L;;;;;N;;;;;
+1D04F;BYZANTINE MUSICAL SYMBOL KENTIMA NEO ANO;So;0;L;;;;;N;;;;;
+1D050;BYZANTINE MUSICAL SYMBOL YPSILI;So;0;L;;;;;N;;;;;
+1D051;BYZANTINE MUSICAL SYMBOL APOSTROFOS NEO;So;0;L;;;;;N;;;;;
+1D052;BYZANTINE MUSICAL SYMBOL APOSTROFOI SYNDESMOS NEO;So;0;L;;;;;N;;;;;
+1D053;BYZANTINE MUSICAL SYMBOL YPORROI;So;0;L;;;;;N;;;;;
+1D054;BYZANTINE MUSICAL SYMBOL KRATIMOYPORROON;So;0;L;;;;;N;;;;;
+1D055;BYZANTINE MUSICAL SYMBOL ELAFRON;So;0;L;;;;;N;;;;;
+1D056;BYZANTINE MUSICAL SYMBOL CHAMILI;So;0;L;;;;;N;;;;;
+1D057;BYZANTINE MUSICAL SYMBOL MIKRON ISON;So;0;L;;;;;N;;;;;
+1D058;BYZANTINE MUSICAL SYMBOL VAREIA NEO;So;0;L;;;;;N;;;;;
+1D059;BYZANTINE MUSICAL SYMBOL PIASMA NEO;So;0;L;;;;;N;;;;;
+1D05A;BYZANTINE MUSICAL SYMBOL PSIFISTON NEO;So;0;L;;;;;N;;;;;
+1D05B;BYZANTINE MUSICAL SYMBOL OMALON;So;0;L;;;;;N;;;;;
+1D05C;BYZANTINE MUSICAL SYMBOL ANTIKENOMA;So;0;L;;;;;N;;;;;
+1D05D;BYZANTINE MUSICAL SYMBOL LYGISMA;So;0;L;;;;;N;;;;;
+1D05E;BYZANTINE MUSICAL SYMBOL PARAKLITIKI NEO;So;0;L;;;;;N;;;;;
+1D05F;BYZANTINE MUSICAL SYMBOL PARAKALESMA NEO;So;0;L;;;;;N;;;;;
+1D060;BYZANTINE MUSICAL SYMBOL ETERON PARAKALESMA;So;0;L;;;;;N;;;;;
+1D061;BYZANTINE MUSICAL SYMBOL KYLISMA;So;0;L;;;;;N;;;;;
+1D062;BYZANTINE MUSICAL SYMBOL ANTIKENOKYLISMA;So;0;L;;;;;N;;;;;
+1D063;BYZANTINE MUSICAL SYMBOL TROMIKON NEO;So;0;L;;;;;N;;;;;
+1D064;BYZANTINE MUSICAL SYMBOL EKSTREPTON;So;0;L;;;;;N;;;;;
+1D065;BYZANTINE MUSICAL SYMBOL SYNAGMA NEO;So;0;L;;;;;N;;;;;
+1D066;BYZANTINE MUSICAL SYMBOL SYRMA;So;0;L;;;;;N;;;;;
+1D067;BYZANTINE MUSICAL SYMBOL CHOREVMA NEO;So;0;L;;;;;N;;;;;
+1D068;BYZANTINE MUSICAL SYMBOL EPEGERMA;So;0;L;;;;;N;;;;;
+1D069;BYZANTINE MUSICAL SYMBOL SEISMA NEO;So;0;L;;;;;N;;;;;
+1D06A;BYZANTINE MUSICAL SYMBOL XIRON KLASMA;So;0;L;;;;;N;;;;;
+1D06B;BYZANTINE MUSICAL SYMBOL TROMIKOPSIFISTON;So;0;L;;;;;N;;;;;
+1D06C;BYZANTINE MUSICAL SYMBOL PSIFISTOLYGISMA;So;0;L;;;;;N;;;;;
+1D06D;BYZANTINE MUSICAL SYMBOL TROMIKOLYGISMA;So;0;L;;;;;N;;;;;
+1D06E;BYZANTINE MUSICAL SYMBOL TROMIKOPARAKALESMA;So;0;L;;;;;N;;;;;
+1D06F;BYZANTINE MUSICAL SYMBOL PSIFISTOPARAKALESMA;So;0;L;;;;;N;;;;;
+1D070;BYZANTINE MUSICAL SYMBOL TROMIKOSYNAGMA;So;0;L;;;;;N;;;;;
+1D071;BYZANTINE MUSICAL SYMBOL PSIFISTOSYNAGMA;So;0;L;;;;;N;;;;;
+1D072;BYZANTINE MUSICAL SYMBOL GORGOSYNTHETON;So;0;L;;;;;N;;;;;
+1D073;BYZANTINE MUSICAL SYMBOL ARGOSYNTHETON;So;0;L;;;;;N;;;;;
+1D074;BYZANTINE MUSICAL SYMBOL ETERON ARGOSYNTHETON;So;0;L;;;;;N;;;;;
+1D075;BYZANTINE MUSICAL SYMBOL OYRANISMA NEO;So;0;L;;;;;N;;;;;
+1D076;BYZANTINE MUSICAL SYMBOL THEMATISMOS ESO;So;0;L;;;;;N;;;;;
+1D077;BYZANTINE MUSICAL SYMBOL THEMATISMOS EXO;So;0;L;;;;;N;;;;;
+1D078;BYZANTINE MUSICAL SYMBOL THEMA APLOUN;So;0;L;;;;;N;;;;;
+1D079;BYZANTINE MUSICAL SYMBOL THES KAI APOTHES;So;0;L;;;;;N;;;;;
+1D07A;BYZANTINE MUSICAL SYMBOL KATAVASMA;So;0;L;;;;;N;;;;;
+1D07B;BYZANTINE MUSICAL SYMBOL ENDOFONON;So;0;L;;;;;N;;;;;
+1D07C;BYZANTINE MUSICAL SYMBOL YFEN KATO;So;0;L;;;;;N;;;;;
+1D07D;BYZANTINE MUSICAL SYMBOL YFEN ANO;So;0;L;;;;;N;;;;;
+1D07E;BYZANTINE MUSICAL SYMBOL STAVROS;So;0;L;;;;;N;;;;;
+1D07F;BYZANTINE MUSICAL SYMBOL KLASMA ANO;So;0;L;;;;;N;;;;;
+1D080;BYZANTINE MUSICAL SYMBOL DIPLI ARCHAION;So;0;L;;;;;N;;;;;
+1D081;BYZANTINE MUSICAL SYMBOL KRATIMA ARCHAION;So;0;L;;;;;N;;;;;
+1D082;BYZANTINE MUSICAL SYMBOL KRATIMA ALLO;So;0;L;;;;;N;;;;;
+1D083;BYZANTINE MUSICAL SYMBOL KRATIMA NEO;So;0;L;;;;;N;;;;;
+1D084;BYZANTINE MUSICAL SYMBOL APODERMA NEO;So;0;L;;;;;N;;;;;
+1D085;BYZANTINE MUSICAL SYMBOL APLI;So;0;L;;;;;N;;;;;
+1D086;BYZANTINE MUSICAL SYMBOL DIPLI;So;0;L;;;;;N;;;;;
+1D087;BYZANTINE MUSICAL SYMBOL TRIPLI;So;0;L;;;;;N;;;;;
+1D088;BYZANTINE MUSICAL SYMBOL TETRAPLI;So;0;L;;;;;N;;;;;
+1D089;BYZANTINE MUSICAL SYMBOL KORONIS;So;0;L;;;;;N;;;;;
+1D08A;BYZANTINE MUSICAL SYMBOL LEIMMA ENOS CHRONOU;So;0;L;;;;;N;;;;;
+1D08B;BYZANTINE MUSICAL SYMBOL LEIMMA DYO CHRONON;So;0;L;;;;;N;;;;;
+1D08C;BYZANTINE MUSICAL SYMBOL LEIMMA TRION CHRONON;So;0;L;;;;;N;;;;;
+1D08D;BYZANTINE MUSICAL SYMBOL LEIMMA TESSARON CHRONON;So;0;L;;;;;N;;;;;
+1D08E;BYZANTINE MUSICAL SYMBOL LEIMMA IMISEOS CHRONOU;So;0;L;;;;;N;;;;;
+1D08F;BYZANTINE MUSICAL SYMBOL GORGON NEO ANO;So;0;L;;;;;N;;;;;
+1D090;BYZANTINE MUSICAL SYMBOL GORGON PARESTIGMENON ARISTERA;So;0;L;;;;;N;;;;;
+1D091;BYZANTINE MUSICAL SYMBOL GORGON PARESTIGMENON DEXIA;So;0;L;;;;;N;;;;;
+1D092;BYZANTINE MUSICAL SYMBOL DIGORGON;So;0;L;;;;;N;;;;;
+1D093;BYZANTINE MUSICAL SYMBOL DIGORGON PARESTIGMENON ARISTERA KATO;So;0;L;;;;;N;;;;;
+1D094;BYZANTINE MUSICAL SYMBOL DIGORGON PARESTIGMENON ARISTERA ANO;So;0;L;;;;;N;;;;;
+1D095;BYZANTINE MUSICAL SYMBOL DIGORGON PARESTIGMENON DEXIA;So;0;L;;;;;N;;;;;
+1D096;BYZANTINE MUSICAL SYMBOL TRIGORGON;So;0;L;;;;;N;;;;;
+1D097;BYZANTINE MUSICAL SYMBOL ARGON;So;0;L;;;;;N;;;;;
+1D098;BYZANTINE MUSICAL SYMBOL IMIDIARGON;So;0;L;;;;;N;;;;;
+1D099;BYZANTINE MUSICAL SYMBOL DIARGON;So;0;L;;;;;N;;;;;
+1D09A;BYZANTINE MUSICAL SYMBOL AGOGI POLI ARGI;So;0;L;;;;;N;;;;;
+1D09B;BYZANTINE MUSICAL SYMBOL AGOGI ARGOTERI;So;0;L;;;;;N;;;;;
+1D09C;BYZANTINE MUSICAL SYMBOL AGOGI ARGI;So;0;L;;;;;N;;;;;
+1D09D;BYZANTINE MUSICAL SYMBOL AGOGI METRIA;So;0;L;;;;;N;;;;;
+1D09E;BYZANTINE MUSICAL SYMBOL AGOGI MESI;So;0;L;;;;;N;;;;;
+1D09F;BYZANTINE MUSICAL SYMBOL AGOGI GORGI;So;0;L;;;;;N;;;;;
+1D0A0;BYZANTINE MUSICAL SYMBOL AGOGI GORGOTERI;So;0;L;;;;;N;;;;;
+1D0A1;BYZANTINE MUSICAL SYMBOL AGOGI POLI GORGI;So;0;L;;;;;N;;;;;
+1D0A2;BYZANTINE MUSICAL SYMBOL MARTYRIA PROTOS ICHOS;So;0;L;;;;;N;;;;;
+1D0A3;BYZANTINE MUSICAL SYMBOL MARTYRIA ALLI PROTOS ICHOS;So;0;L;;;;;N;;;;;
+1D0A4;BYZANTINE MUSICAL SYMBOL MARTYRIA DEYTEROS ICHOS;So;0;L;;;;;N;;;;;
+1D0A5;BYZANTINE MUSICAL SYMBOL MARTYRIA ALLI DEYTEROS ICHOS;So;0;L;;;;;N;;;;;
+1D0A6;BYZANTINE MUSICAL SYMBOL MARTYRIA TRITOS ICHOS;So;0;L;;;;;N;;;;;
+1D0A7;BYZANTINE MUSICAL SYMBOL MARTYRIA TRIFONIAS;So;0;L;;;;;N;;;;;
+1D0A8;BYZANTINE MUSICAL SYMBOL MARTYRIA TETARTOS ICHOS;So;0;L;;;;;N;;;;;
+1D0A9;BYZANTINE MUSICAL SYMBOL MARTYRIA TETARTOS LEGETOS ICHOS;So;0;L;;;;;N;;;;;
+1D0AA;BYZANTINE MUSICAL SYMBOL MARTYRIA LEGETOS ICHOS;So;0;L;;;;;N;;;;;
+1D0AB;BYZANTINE MUSICAL SYMBOL MARTYRIA PLAGIOS ICHOS;So;0;L;;;;;N;;;;;
+1D0AC;BYZANTINE MUSICAL SYMBOL ISAKIA TELOUS ICHIMATOS;So;0;L;;;;;N;;;;;
+1D0AD;BYZANTINE MUSICAL SYMBOL APOSTROFOI TELOUS ICHIMATOS;So;0;L;;;;;N;;;;;
+1D0AE;BYZANTINE MUSICAL SYMBOL FANEROSIS TETRAFONIAS;So;0;L;;;;;N;;;;;
+1D0AF;BYZANTINE MUSICAL SYMBOL FANEROSIS MONOFONIAS;So;0;L;;;;;N;;;;;
+1D0B0;BYZANTINE MUSICAL SYMBOL FANEROSIS DIFONIAS;So;0;L;;;;;N;;;;;
+1D0B1;BYZANTINE MUSICAL SYMBOL MARTYRIA VARYS ICHOS;So;0;L;;;;;N;;;;;
+1D0B2;BYZANTINE MUSICAL SYMBOL MARTYRIA PROTOVARYS ICHOS;So;0;L;;;;;N;;;;;
+1D0B3;BYZANTINE MUSICAL SYMBOL MARTYRIA PLAGIOS TETARTOS ICHOS;So;0;L;;;;;N;;;;;
+1D0B4;BYZANTINE MUSICAL SYMBOL GORTHMIKON N APLOUN;So;0;L;;;;;N;;;;;
+1D0B5;BYZANTINE MUSICAL SYMBOL GORTHMIKON N DIPLOUN;So;0;L;;;;;N;;;;;
+1D0B6;BYZANTINE MUSICAL SYMBOL ENARXIS KAI FTHORA VOU;So;0;L;;;;;N;;;;;
+1D0B7;BYZANTINE MUSICAL SYMBOL IMIFONON;So;0;L;;;;;N;;;;;
+1D0B8;BYZANTINE MUSICAL SYMBOL IMIFTHORON;So;0;L;;;;;N;;;;;
+1D0B9;BYZANTINE MUSICAL SYMBOL FTHORA ARCHAION DEYTEROU ICHOU;So;0;L;;;;;N;;;;;
+1D0BA;BYZANTINE MUSICAL SYMBOL FTHORA DIATONIKI PA;So;0;L;;;;;N;;;;;
+1D0BB;BYZANTINE MUSICAL SYMBOL FTHORA DIATONIKI NANA;So;0;L;;;;;N;;;;;
+1D0BC;BYZANTINE MUSICAL SYMBOL FTHORA NAOS ICHOS;So;0;L;;;;;N;;;;;
+1D0BD;BYZANTINE MUSICAL SYMBOL FTHORA DIATONIKI DI;So;0;L;;;;;N;;;;;
+1D0BE;BYZANTINE MUSICAL SYMBOL FTHORA SKLIRON DIATONON DI;So;0;L;;;;;N;;;;;
+1D0BF;BYZANTINE MUSICAL SYMBOL FTHORA DIATONIKI KE;So;0;L;;;;;N;;;;;
+1D0C0;BYZANTINE MUSICAL SYMBOL FTHORA DIATONIKI ZO;So;0;L;;;;;N;;;;;
+1D0C1;BYZANTINE MUSICAL SYMBOL FTHORA DIATONIKI NI KATO;So;0;L;;;;;N;;;;;
+1D0C2;BYZANTINE MUSICAL SYMBOL FTHORA DIATONIKI NI ANO;So;0;L;;;;;N;;;;;
+1D0C3;BYZANTINE MUSICAL SYMBOL FTHORA MALAKON CHROMA DIFONIAS;So;0;L;;;;;N;;;;;
+1D0C4;BYZANTINE MUSICAL SYMBOL FTHORA MALAKON CHROMA MONOFONIAS;So;0;L;;;;;N;;;;;
+1D0C5;BYZANTINE MUSICAL SYMBOL FHTORA SKLIRON CHROMA VASIS;So;0;L;;;;;N;;;;;
+1D0C6;BYZANTINE MUSICAL SYMBOL FTHORA SKLIRON CHROMA SYNAFI;So;0;L;;;;;N;;;;;
+1D0C7;BYZANTINE MUSICAL SYMBOL FTHORA NENANO;So;0;L;;;;;N;;;;;
+1D0C8;BYZANTINE MUSICAL SYMBOL CHROA ZYGOS;So;0;L;;;;;N;;;;;
+1D0C9;BYZANTINE MUSICAL SYMBOL CHROA KLITON;So;0;L;;;;;N;;;;;
+1D0CA;BYZANTINE MUSICAL SYMBOL CHROA SPATHI;So;0;L;;;;;N;;;;;
+1D0CB;BYZANTINE MUSICAL SYMBOL FTHORA I YFESIS TETARTIMORION;So;0;L;;;;;N;;;;;
+1D0CC;BYZANTINE MUSICAL SYMBOL FTHORA ENARMONIOS ANTIFONIA;So;0;L;;;;;N;;;;;
+1D0CD;BYZANTINE MUSICAL SYMBOL YFESIS TRITIMORION;So;0;L;;;;;N;;;;;
+1D0CE;BYZANTINE MUSICAL SYMBOL DIESIS TRITIMORION;So;0;L;;;;;N;;;;;
+1D0CF;BYZANTINE MUSICAL SYMBOL DIESIS TETARTIMORION;So;0;L;;;;;N;;;;;
+1D0D0;BYZANTINE MUSICAL SYMBOL DIESIS APLI DYO DODEKATA;So;0;L;;;;;N;;;;;
+1D0D1;BYZANTINE MUSICAL SYMBOL DIESIS MONOGRAMMOS TESSERA DODEKATA;So;0;L;;;;;N;;;;;
+1D0D2;BYZANTINE MUSICAL SYMBOL DIESIS DIGRAMMOS EX DODEKATA;So;0;L;;;;;N;;;;;
+1D0D3;BYZANTINE MUSICAL SYMBOL DIESIS TRIGRAMMOS OKTO DODEKATA;So;0;L;;;;;N;;;;;
+1D0D4;BYZANTINE MUSICAL SYMBOL YFESIS APLI DYO DODEKATA;So;0;L;;;;;N;;;;;
+1D0D5;BYZANTINE MUSICAL SYMBOL YFESIS MONOGRAMMOS TESSERA DODEKATA;So;0;L;;;;;N;;;;;
+1D0D6;BYZANTINE MUSICAL SYMBOL YFESIS DIGRAMMOS EX DODEKATA;So;0;L;;;;;N;;;;;
+1D0D7;BYZANTINE MUSICAL SYMBOL YFESIS TRIGRAMMOS OKTO DODEKATA;So;0;L;;;;;N;;;;;
+1D0D8;BYZANTINE MUSICAL SYMBOL GENIKI DIESIS;So;0;L;;;;;N;;;;;
+1D0D9;BYZANTINE MUSICAL SYMBOL GENIKI YFESIS;So;0;L;;;;;N;;;;;
+1D0DA;BYZANTINE MUSICAL SYMBOL DIASTOLI APLI MIKRI;So;0;L;;;;;N;;;;;
+1D0DB;BYZANTINE MUSICAL SYMBOL DIASTOLI APLI MEGALI;So;0;L;;;;;N;;;;;
+1D0DC;BYZANTINE MUSICAL SYMBOL DIASTOLI DIPLI;So;0;L;;;;;N;;;;;
+1D0DD;BYZANTINE MUSICAL SYMBOL DIASTOLI THESEOS;So;0;L;;;;;N;;;;;
+1D0DE;BYZANTINE MUSICAL SYMBOL SIMANSIS THESEOS;So;0;L;;;;;N;;;;;
+1D0DF;BYZANTINE MUSICAL SYMBOL SIMANSIS THESEOS DISIMOU;So;0;L;;;;;N;;;;;
+1D0E0;BYZANTINE MUSICAL SYMBOL SIMANSIS THESEOS TRISIMOU;So;0;L;;;;;N;;;;;
+1D0E1;BYZANTINE MUSICAL SYMBOL SIMANSIS THESEOS TETRASIMOU;So;0;L;;;;;N;;;;;
+1D0E2;BYZANTINE MUSICAL SYMBOL SIMANSIS ARSEOS;So;0;L;;;;;N;;;;;
+1D0E3;BYZANTINE MUSICAL SYMBOL SIMANSIS ARSEOS DISIMOU;So;0;L;;;;;N;;;;;
+1D0E4;BYZANTINE MUSICAL SYMBOL SIMANSIS ARSEOS TRISIMOU;So;0;L;;;;;N;;;;;
+1D0E5;BYZANTINE MUSICAL SYMBOL SIMANSIS ARSEOS TETRASIMOU;So;0;L;;;;;N;;;;;
+1D0E6;BYZANTINE MUSICAL SYMBOL DIGRAMMA GG;So;0;L;;;;;N;;;;;
+1D0E7;BYZANTINE MUSICAL SYMBOL DIFTOGGOS OU;So;0;L;;;;;N;;;;;
+1D0E8;BYZANTINE MUSICAL SYMBOL STIGMA;So;0;L;;;;;N;;;;;
+1D0E9;BYZANTINE MUSICAL SYMBOL ARKTIKO PA;So;0;L;;;;;N;;;;;
+1D0EA;BYZANTINE MUSICAL SYMBOL ARKTIKO VOU;So;0;L;;;;;N;;;;;
+1D0EB;BYZANTINE MUSICAL SYMBOL ARKTIKO GA;So;0;L;;;;;N;;;;;
+1D0EC;BYZANTINE MUSICAL SYMBOL ARKTIKO DI;So;0;L;;;;;N;;;;;
+1D0ED;BYZANTINE MUSICAL SYMBOL ARKTIKO KE;So;0;L;;;;;N;;;;;
+1D0EE;BYZANTINE MUSICAL SYMBOL ARKTIKO ZO;So;0;L;;;;;N;;;;;
+1D0EF;BYZANTINE MUSICAL SYMBOL ARKTIKO NI;So;0;L;;;;;N;;;;;
+1D0F0;BYZANTINE MUSICAL SYMBOL KENTIMATA NEO MESO;So;0;L;;;;;N;;;;;
+1D0F1;BYZANTINE MUSICAL SYMBOL KENTIMA NEO MESO;So;0;L;;;;;N;;;;;
+1D0F2;BYZANTINE MUSICAL SYMBOL KENTIMATA NEO KATO;So;0;L;;;;;N;;;;;
+1D0F3;BYZANTINE MUSICAL SYMBOL KENTIMA NEO KATO;So;0;L;;;;;N;;;;;
+1D0F4;BYZANTINE MUSICAL SYMBOL KLASMA KATO;So;0;L;;;;;N;;;;;
+1D0F5;BYZANTINE MUSICAL SYMBOL GORGON NEO KATO;So;0;L;;;;;N;;;;;
+1D100;MUSICAL SYMBOL SINGLE BARLINE;So;0;L;;;;;N;;;;;
+1D101;MUSICAL SYMBOL DOUBLE BARLINE;So;0;L;;;;;N;;;;;
+1D102;MUSICAL SYMBOL FINAL BARLINE;So;0;L;;;;;N;;;;;
+1D103;MUSICAL SYMBOL REVERSE FINAL BARLINE;So;0;L;;;;;N;;;;;
+1D104;MUSICAL SYMBOL DASHED BARLINE;So;0;L;;;;;N;;;;;
+1D105;MUSICAL SYMBOL SHORT BARLINE;So;0;L;;;;;N;;;;;
+1D106;MUSICAL SYMBOL LEFT REPEAT SIGN;So;0;L;;;;;N;;;;;
+1D107;MUSICAL SYMBOL RIGHT REPEAT SIGN;So;0;L;;;;;N;;;;;
+1D108;MUSICAL SYMBOL REPEAT DOTS;So;0;L;;;;;N;;;;;
+1D109;MUSICAL SYMBOL DAL SEGNO;So;0;L;;;;;N;;;;;
+1D10A;MUSICAL SYMBOL DA CAPO;So;0;L;;;;;N;;;;;
+1D10B;MUSICAL SYMBOL SEGNO;So;0;L;;;;;N;;;;;
+1D10C;MUSICAL SYMBOL CODA;So;0;L;;;;;N;;;;;
+1D10D;MUSICAL SYMBOL REPEATED FIGURE-1;So;0;L;;;;;N;;;;;
+1D10E;MUSICAL SYMBOL REPEATED FIGURE-2;So;0;L;;;;;N;;;;;
+1D10F;MUSICAL SYMBOL REPEATED FIGURE-3;So;0;L;;;;;N;;;;;
+1D110;MUSICAL SYMBOL FERMATA;So;0;L;;;;;N;;;;;
+1D111;MUSICAL SYMBOL FERMATA BELOW;So;0;L;;;;;N;;;;;
+1D112;MUSICAL SYMBOL BREATH MARK;So;0;L;;;;;N;;;;;
+1D113;MUSICAL SYMBOL CAESURA;So;0;L;;;;;N;;;;;
+1D114;MUSICAL SYMBOL BRACE;So;0;L;;;;;N;;;;;
+1D115;MUSICAL SYMBOL BRACKET;So;0;L;;;;;N;;;;;
+1D116;MUSICAL SYMBOL ONE-LINE STAFF;So;0;L;;;;;N;;;;;
+1D117;MUSICAL SYMBOL TWO-LINE STAFF;So;0;L;;;;;N;;;;;
+1D118;MUSICAL SYMBOL THREE-LINE STAFF;So;0;L;;;;;N;;;;;
+1D119;MUSICAL SYMBOL FOUR-LINE STAFF;So;0;L;;;;;N;;;;;
+1D11A;MUSICAL SYMBOL FIVE-LINE STAFF;So;0;L;;;;;N;;;;;
+1D11B;MUSICAL SYMBOL SIX-LINE STAFF;So;0;L;;;;;N;;;;;
+1D11C;MUSICAL SYMBOL SIX-STRING FRETBOARD;So;0;L;;;;;N;;;;;
+1D11D;MUSICAL SYMBOL FOUR-STRING FRETBOARD;So;0;L;;;;;N;;;;;
+1D11E;MUSICAL SYMBOL G CLEF;So;0;L;;;;;N;;;;;
+1D11F;MUSICAL SYMBOL G CLEF OTTAVA ALTA;So;0;L;;;;;N;;;;;
+1D120;MUSICAL SYMBOL G CLEF OTTAVA BASSA;So;0;L;;;;;N;;;;;
+1D121;MUSICAL SYMBOL C CLEF;So;0;L;;;;;N;;;;;
+1D122;MUSICAL SYMBOL F CLEF;So;0;L;;;;;N;;;;;
+1D123;MUSICAL SYMBOL F CLEF OTTAVA ALTA;So;0;L;;;;;N;;;;;
+1D124;MUSICAL SYMBOL F CLEF OTTAVA BASSA;So;0;L;;;;;N;;;;;
+1D125;MUSICAL SYMBOL DRUM CLEF-1;So;0;L;;;;;N;;;;;
+1D126;MUSICAL SYMBOL DRUM CLEF-2;So;0;L;;;;;N;;;;;
+1D129;MUSICAL SYMBOL MULTIPLE MEASURE REST;So;0;L;;;;;N;;;;;
+1D12A;MUSICAL SYMBOL DOUBLE SHARP;So;0;L;;;;;N;;;;;
+1D12B;MUSICAL SYMBOL DOUBLE FLAT;So;0;L;;;;;N;;;;;
+1D12C;MUSICAL SYMBOL FLAT UP;So;0;L;;;;;N;;;;;
+1D12D;MUSICAL SYMBOL FLAT DOWN;So;0;L;;;;;N;;;;;
+1D12E;MUSICAL SYMBOL NATURAL UP;So;0;L;;;;;N;;;;;
+1D12F;MUSICAL SYMBOL NATURAL DOWN;So;0;L;;;;;N;;;;;
+1D130;MUSICAL SYMBOL SHARP UP;So;0;L;;;;;N;;;;;
+1D131;MUSICAL SYMBOL SHARP DOWN;So;0;L;;;;;N;;;;;
+1D132;MUSICAL SYMBOL QUARTER TONE SHARP;So;0;L;;;;;N;;;;;
+1D133;MUSICAL SYMBOL QUARTER TONE FLAT;So;0;L;;;;;N;;;;;
+1D134;MUSICAL SYMBOL COMMON TIME;So;0;L;;;;;N;;;;;
+1D135;MUSICAL SYMBOL CUT TIME;So;0;L;;;;;N;;;;;
+1D136;MUSICAL SYMBOL OTTAVA ALTA;So;0;L;;;;;N;;;;;
+1D137;MUSICAL SYMBOL OTTAVA BASSA;So;0;L;;;;;N;;;;;
+1D138;MUSICAL SYMBOL QUINDICESIMA ALTA;So;0;L;;;;;N;;;;;
+1D139;MUSICAL SYMBOL QUINDICESIMA BASSA;So;0;L;;;;;N;;;;;
+1D13A;MUSICAL SYMBOL MULTI REST;So;0;L;;;;;N;;;;;
+1D13B;MUSICAL SYMBOL WHOLE REST;So;0;L;;;;;N;;;;;
+1D13C;MUSICAL SYMBOL HALF REST;So;0;L;;;;;N;;;;;
+1D13D;MUSICAL SYMBOL QUARTER REST;So;0;L;;;;;N;;;;;
+1D13E;MUSICAL SYMBOL EIGHTH REST;So;0;L;;;;;N;;;;;
+1D13F;MUSICAL SYMBOL SIXTEENTH REST;So;0;L;;;;;N;;;;;
+1D140;MUSICAL SYMBOL THIRTY-SECOND REST;So;0;L;;;;;N;;;;;
+1D141;MUSICAL SYMBOL SIXTY-FOURTH REST;So;0;L;;;;;N;;;;;
+1D142;MUSICAL SYMBOL ONE HUNDRED TWENTY-EIGHTH REST;So;0;L;;;;;N;;;;;
+1D143;MUSICAL SYMBOL X NOTEHEAD;So;0;L;;;;;N;;;;;
+1D144;MUSICAL SYMBOL PLUS NOTEHEAD;So;0;L;;;;;N;;;;;
+1D145;MUSICAL SYMBOL CIRCLE X NOTEHEAD;So;0;L;;;;;N;;;;;
+1D146;MUSICAL SYMBOL SQUARE NOTEHEAD WHITE;So;0;L;;;;;N;;;;;
+1D147;MUSICAL SYMBOL SQUARE NOTEHEAD BLACK;So;0;L;;;;;N;;;;;
+1D148;MUSICAL SYMBOL TRIANGLE NOTEHEAD UP WHITE;So;0;L;;;;;N;;;;;
+1D149;MUSICAL SYMBOL TRIANGLE NOTEHEAD UP BLACK;So;0;L;;;;;N;;;;;
+1D14A;MUSICAL SYMBOL TRIANGLE NOTEHEAD LEFT WHITE;So;0;L;;;;;N;;;;;
+1D14B;MUSICAL SYMBOL TRIANGLE NOTEHEAD LEFT BLACK;So;0;L;;;;;N;;;;;
+1D14C;MUSICAL SYMBOL TRIANGLE NOTEHEAD RIGHT WHITE;So;0;L;;;;;N;;;;;
+1D14D;MUSICAL SYMBOL TRIANGLE NOTEHEAD RIGHT BLACK;So;0;L;;;;;N;;;;;
+1D14E;MUSICAL SYMBOL TRIANGLE NOTEHEAD DOWN WHITE;So;0;L;;;;;N;;;;;
+1D14F;MUSICAL SYMBOL TRIANGLE NOTEHEAD DOWN BLACK;So;0;L;;;;;N;;;;;
+1D150;MUSICAL SYMBOL TRIANGLE NOTEHEAD UP RIGHT WHITE;So;0;L;;;;;N;;;;;
+1D151;MUSICAL SYMBOL TRIANGLE NOTEHEAD UP RIGHT BLACK;So;0;L;;;;;N;;;;;
+1D152;MUSICAL SYMBOL MOON NOTEHEAD WHITE;So;0;L;;;;;N;;;;;
+1D153;MUSICAL SYMBOL MOON NOTEHEAD BLACK;So;0;L;;;;;N;;;;;
+1D154;MUSICAL SYMBOL TRIANGLE-ROUND NOTEHEAD DOWN WHITE;So;0;L;;;;;N;;;;;
+1D155;MUSICAL SYMBOL TRIANGLE-ROUND NOTEHEAD DOWN BLACK;So;0;L;;;;;N;;;;;
+1D156;MUSICAL SYMBOL PARENTHESIS NOTEHEAD;So;0;L;;;;;N;;;;;
+1D157;MUSICAL SYMBOL VOID NOTEHEAD;So;0;L;;;;;N;;;;;
+1D158;MUSICAL SYMBOL NOTEHEAD BLACK;So;0;L;;;;;N;;;;;
+1D159;MUSICAL SYMBOL NULL NOTEHEAD;So;0;L;;;;;N;;;;;
+1D15A;MUSICAL SYMBOL CLUSTER NOTEHEAD WHITE;So;0;L;;;;;N;;;;;
+1D15B;MUSICAL SYMBOL CLUSTER NOTEHEAD BLACK;So;0;L;;;;;N;;;;;
+1D15C;MUSICAL SYMBOL BREVE;So;0;L;;;;;N;;;;;
+1D15D;MUSICAL SYMBOL WHOLE NOTE;So;0;L;;;;;N;;;;;
+1D15E;MUSICAL SYMBOL HALF NOTE;So;0;L;1D157 1D165;;;;N;;;;;
+1D15F;MUSICAL SYMBOL QUARTER NOTE;So;0;L;1D158 1D165;;;;N;;;;;
+1D160;MUSICAL SYMBOL EIGHTH NOTE;So;0;L;1D15F 1D16E;;;;N;;;;;
+1D161;MUSICAL SYMBOL SIXTEENTH NOTE;So;0;L;1D15F 1D16F;;;;N;;;;;
+1D162;MUSICAL SYMBOL THIRTY-SECOND NOTE;So;0;L;1D15F 1D170;;;;N;;;;;
+1D163;MUSICAL SYMBOL SIXTY-FOURTH NOTE;So;0;L;1D15F 1D171;;;;N;;;;;
+1D164;MUSICAL SYMBOL ONE HUNDRED TWENTY-EIGHTH NOTE;So;0;L;1D15F 1D172;;;;N;;;;;
+1D165;MUSICAL SYMBOL COMBINING STEM;Mc;216;L;;;;;N;;;;;
+1D166;MUSICAL SYMBOL COMBINING SPRECHGESANG STEM;Mc;216;L;;;;;N;;;;;
+1D167;MUSICAL SYMBOL COMBINING TREMOLO-1;Mn;1;NSM;;;;;N;;;;;
+1D168;MUSICAL SYMBOL COMBINING TREMOLO-2;Mn;1;NSM;;;;;N;;;;;
+1D169;MUSICAL SYMBOL COMBINING TREMOLO-3;Mn;1;NSM;;;;;N;;;;;
+1D16A;MUSICAL SYMBOL FINGERED TREMOLO-1;So;0;L;;;;;N;;;;;
+1D16B;MUSICAL SYMBOL FINGERED TREMOLO-2;So;0;L;;;;;N;;;;;
+1D16C;MUSICAL SYMBOL FINGERED TREMOLO-3;So;0;L;;;;;N;;;;;
+1D16D;MUSICAL SYMBOL COMBINING AUGMENTATION DOT;Mc;226;L;;;;;N;;;;;
+1D16E;MUSICAL SYMBOL COMBINING FLAG-1;Mc;216;L;;;;;N;;;;;
+1D16F;MUSICAL SYMBOL COMBINING FLAG-2;Mc;216;L;;;;;N;;;;;
+1D170;MUSICAL SYMBOL COMBINING FLAG-3;Mc;216;L;;;;;N;;;;;
+1D171;MUSICAL SYMBOL COMBINING FLAG-4;Mc;216;L;;;;;N;;;;;
+1D172;MUSICAL SYMBOL COMBINING FLAG-5;Mc;216;L;;;;;N;;;;;
+1D173;MUSICAL SYMBOL BEGIN BEAM;Cf;0;BN;;;;;N;;;;;
+1D174;MUSICAL SYMBOL END BEAM;Cf;0;BN;;;;;N;;;;;
+1D175;MUSICAL SYMBOL BEGIN TIE;Cf;0;BN;;;;;N;;;;;
+1D176;MUSICAL SYMBOL END TIE;Cf;0;BN;;;;;N;;;;;
+1D177;MUSICAL SYMBOL BEGIN SLUR;Cf;0;BN;;;;;N;;;;;
+1D178;MUSICAL SYMBOL END SLUR;Cf;0;BN;;;;;N;;;;;
+1D179;MUSICAL SYMBOL BEGIN PHRASE;Cf;0;BN;;;;;N;;;;;
+1D17A;MUSICAL SYMBOL END PHRASE;Cf;0;BN;;;;;N;;;;;
+1D17B;MUSICAL SYMBOL COMBINING ACCENT;Mn;220;NSM;;;;;N;;;;;
+1D17C;MUSICAL SYMBOL COMBINING STACCATO;Mn;220;NSM;;;;;N;;;;;
+1D17D;MUSICAL SYMBOL COMBINING TENUTO;Mn;220;NSM;;;;;N;;;;;
+1D17E;MUSICAL SYMBOL COMBINING STACCATISSIMO;Mn;220;NSM;;;;;N;;;;;
+1D17F;MUSICAL SYMBOL COMBINING MARCATO;Mn;220;NSM;;;;;N;;;;;
+1D180;MUSICAL SYMBOL COMBINING MARCATO-STACCATO;Mn;220;NSM;;;;;N;;;;;
+1D181;MUSICAL SYMBOL COMBINING ACCENT-STACCATO;Mn;220;NSM;;;;;N;;;;;
+1D182;MUSICAL SYMBOL COMBINING LOURE;Mn;220;NSM;;;;;N;;;;;
+1D183;MUSICAL SYMBOL ARPEGGIATO UP;So;0;L;;;;;N;;;;;
+1D184;MUSICAL SYMBOL ARPEGGIATO DOWN;So;0;L;;;;;N;;;;;
+1D185;MUSICAL SYMBOL COMBINING DOIT;Mn;230;NSM;;;;;N;;;;;
+1D186;MUSICAL SYMBOL COMBINING RIP;Mn;230;NSM;;;;;N;;;;;
+1D187;MUSICAL SYMBOL COMBINING FLIP;Mn;230;NSM;;;;;N;;;;;
+1D188;MUSICAL SYMBOL COMBINING SMEAR;Mn;230;NSM;;;;;N;;;;;
+1D189;MUSICAL SYMBOL COMBINING BEND;Mn;230;NSM;;;;;N;;;;;
+1D18A;MUSICAL SYMBOL COMBINING DOUBLE TONGUE;Mn;220;NSM;;;;;N;;;;;
+1D18B;MUSICAL SYMBOL COMBINING TRIPLE TONGUE;Mn;220;NSM;;;;;N;;;;;
+1D18C;MUSICAL SYMBOL RINFORZANDO;So;0;L;;;;;N;;;;;
+1D18D;MUSICAL SYMBOL SUBITO;So;0;L;;;;;N;;;;;
+1D18E;MUSICAL SYMBOL Z;So;0;L;;;;;N;;;;;
+1D18F;MUSICAL SYMBOL PIANO;So;0;L;;;;;N;;;;;
+1D190;MUSICAL SYMBOL MEZZO;So;0;L;;;;;N;;;;;
+1D191;MUSICAL SYMBOL FORTE;So;0;L;;;;;N;;;;;
+1D192;MUSICAL SYMBOL CRESCENDO;So;0;L;;;;;N;;;;;
+1D193;MUSICAL SYMBOL DECRESCENDO;So;0;L;;;;;N;;;;;
+1D194;MUSICAL SYMBOL GRACE NOTE SLASH;So;0;L;;;;;N;;;;;
+1D195;MUSICAL SYMBOL GRACE NOTE NO SLASH;So;0;L;;;;;N;;;;;
+1D196;MUSICAL SYMBOL TR;So;0;L;;;;;N;;;;;
+1D197;MUSICAL SYMBOL TURN;So;0;L;;;;;N;;;;;
+1D198;MUSICAL SYMBOL INVERTED TURN;So;0;L;;;;;N;;;;;
+1D199;MUSICAL SYMBOL TURN SLASH;So;0;L;;;;;N;;;;;
+1D19A;MUSICAL SYMBOL TURN UP;So;0;L;;;;;N;;;;;
+1D19B;MUSICAL SYMBOL ORNAMENT STROKE-1;So;0;L;;;;;N;;;;;
+1D19C;MUSICAL SYMBOL ORNAMENT STROKE-2;So;0;L;;;;;N;;;;;
+1D19D;MUSICAL SYMBOL ORNAMENT STROKE-3;So;0;L;;;;;N;;;;;
+1D19E;MUSICAL SYMBOL ORNAMENT STROKE-4;So;0;L;;;;;N;;;;;
+1D19F;MUSICAL SYMBOL ORNAMENT STROKE-5;So;0;L;;;;;N;;;;;
+1D1A0;MUSICAL SYMBOL ORNAMENT STROKE-6;So;0;L;;;;;N;;;;;
+1D1A1;MUSICAL SYMBOL ORNAMENT STROKE-7;So;0;L;;;;;N;;;;;
+1D1A2;MUSICAL SYMBOL ORNAMENT STROKE-8;So;0;L;;;;;N;;;;;
+1D1A3;MUSICAL SYMBOL ORNAMENT STROKE-9;So;0;L;;;;;N;;;;;
+1D1A4;MUSICAL SYMBOL ORNAMENT STROKE-10;So;0;L;;;;;N;;;;;
+1D1A5;MUSICAL SYMBOL ORNAMENT STROKE-11;So;0;L;;;;;N;;;;;
+1D1A6;MUSICAL SYMBOL HAUPTSTIMME;So;0;L;;;;;N;;;;;
+1D1A7;MUSICAL SYMBOL NEBENSTIMME;So;0;L;;;;;N;;;;;
+1D1A8;MUSICAL SYMBOL END OF STIMME;So;0;L;;;;;N;;;;;
+1D1A9;MUSICAL SYMBOL DEGREE SLASH;So;0;L;;;;;N;;;;;
+1D1AA;MUSICAL SYMBOL COMBINING DOWN BOW;Mn;230;NSM;;;;;N;;;;;
+1D1AB;MUSICAL SYMBOL COMBINING UP BOW;Mn;230;NSM;;;;;N;;;;;
+1D1AC;MUSICAL SYMBOL COMBINING HARMONIC;Mn;230;NSM;;;;;N;;;;;
+1D1AD;MUSICAL SYMBOL COMBINING SNAP PIZZICATO;Mn;230;NSM;;;;;N;;;;;
+1D1AE;MUSICAL SYMBOL PEDAL MARK;So;0;L;;;;;N;;;;;
+1D1AF;MUSICAL SYMBOL PEDAL UP MARK;So;0;L;;;;;N;;;;;
+1D1B0;MUSICAL SYMBOL HALF PEDAL MARK;So;0;L;;;;;N;;;;;
+1D1B1;MUSICAL SYMBOL GLISSANDO UP;So;0;L;;;;;N;;;;;
+1D1B2;MUSICAL SYMBOL GLISSANDO DOWN;So;0;L;;;;;N;;;;;
+1D1B3;MUSICAL SYMBOL WITH FINGERNAILS;So;0;L;;;;;N;;;;;
+1D1B4;MUSICAL SYMBOL DAMP;So;0;L;;;;;N;;;;;
+1D1B5;MUSICAL SYMBOL DAMP ALL;So;0;L;;;;;N;;;;;
+1D1B6;MUSICAL SYMBOL MAXIMA;So;0;L;;;;;N;;;;;
+1D1B7;MUSICAL SYMBOL LONGA;So;0;L;;;;;N;;;;;
+1D1B8;MUSICAL SYMBOL BREVIS;So;0;L;;;;;N;;;;;
+1D1B9;MUSICAL SYMBOL SEMIBREVIS WHITE;So;0;L;;;;;N;;;;;
+1D1BA;MUSICAL SYMBOL SEMIBREVIS BLACK;So;0;L;;;;;N;;;;;
+1D1BB;MUSICAL SYMBOL MINIMA;So;0;L;1D1B9 1D165;;;;N;;;;;
+1D1BC;MUSICAL SYMBOL MINIMA BLACK;So;0;L;1D1BA 1D165;;;;N;;;;;
+1D1BD;MUSICAL SYMBOL SEMIMINIMA WHITE;So;0;L;1D1BB 1D16E;;;;N;;;;;
+1D1BE;MUSICAL SYMBOL SEMIMINIMA BLACK;So;0;L;1D1BC 1D16E;;;;N;;;;;
+1D1BF;MUSICAL SYMBOL FUSA WHITE;So;0;L;1D1BB 1D16F;;;;N;;;;;
+1D1C0;MUSICAL SYMBOL FUSA BLACK;So;0;L;1D1BC 1D16F;;;;N;;;;;
+1D1C1;MUSICAL SYMBOL LONGA PERFECTA REST;So;0;L;;;;;N;;;;;
+1D1C2;MUSICAL SYMBOL LONGA IMPERFECTA REST;So;0;L;;;;;N;;;;;
+1D1C3;MUSICAL SYMBOL BREVIS REST;So;0;L;;;;;N;;;;;
+1D1C4;MUSICAL SYMBOL SEMIBREVIS REST;So;0;L;;;;;N;;;;;
+1D1C5;MUSICAL SYMBOL MINIMA REST;So;0;L;;;;;N;;;;;
+1D1C6;MUSICAL SYMBOL SEMIMINIMA REST;So;0;L;;;;;N;;;;;
+1D1C7;MUSICAL SYMBOL TEMPUS PERFECTUM CUM PROLATIONE PERFECTA;So;0;L;;;;;N;;;;;
+1D1C8;MUSICAL SYMBOL TEMPUS PERFECTUM CUM PROLATIONE IMPERFECTA;So;0;L;;;;;N;;;;;
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+1D44B;MATHEMATICAL ITALIC CAPITAL X;Lu;0;L;<font> 0058;;;;N;;;;;
+1D44C;MATHEMATICAL ITALIC CAPITAL Y;Lu;0;L;<font> 0059;;;;N;;;;;
+1D44D;MATHEMATICAL ITALIC CAPITAL Z;Lu;0;L;<font> 005A;;;;N;;;;;
+1D44E;MATHEMATICAL ITALIC SMALL A;Ll;0;L;<font> 0061;;;;N;;;;;
+1D44F;MATHEMATICAL ITALIC SMALL B;Ll;0;L;<font> 0062;;;;N;;;;;
+1D450;MATHEMATICAL ITALIC SMALL C;Ll;0;L;<font> 0063;;;;N;;;;;
+1D451;MATHEMATICAL ITALIC SMALL D;Ll;0;L;<font> 0064;;;;N;;;;;
+1D452;MATHEMATICAL ITALIC SMALL E;Ll;0;L;<font> 0065;;;;N;;;;;
+1D453;MATHEMATICAL ITALIC SMALL F;Ll;0;L;<font> 0066;;;;N;;;;;
+1D454;MATHEMATICAL ITALIC SMALL G;Ll;0;L;<font> 0067;;;;N;;;;;
+1D456;MATHEMATICAL ITALIC SMALL I;Ll;0;L;<font> 0069;;;;N;;;;;
+1D457;MATHEMATICAL ITALIC SMALL J;Ll;0;L;<font> 006A;;;;N;;;;;
+1D458;MATHEMATICAL ITALIC SMALL K;Ll;0;L;<font> 006B;;;;N;;;;;
+1D459;MATHEMATICAL ITALIC SMALL L;Ll;0;L;<font> 006C;;;;N;;;;;
+1D45A;MATHEMATICAL ITALIC SMALL M;Ll;0;L;<font> 006D;;;;N;;;;;
+1D45B;MATHEMATICAL ITALIC SMALL N;Ll;0;L;<font> 006E;;;;N;;;;;
+1D45C;MATHEMATICAL ITALIC SMALL O;Ll;0;L;<font> 006F;;;;N;;;;;
+1D45D;MATHEMATICAL ITALIC SMALL P;Ll;0;L;<font> 0070;;;;N;;;;;
+1D45E;MATHEMATICAL ITALIC SMALL Q;Ll;0;L;<font> 0071;;;;N;;;;;
+1D45F;MATHEMATICAL ITALIC SMALL R;Ll;0;L;<font> 0072;;;;N;;;;;
+1D460;MATHEMATICAL ITALIC SMALL S;Ll;0;L;<font> 0073;;;;N;;;;;
+1D461;MATHEMATICAL ITALIC SMALL T;Ll;0;L;<font> 0074;;;;N;;;;;
+1D462;MATHEMATICAL ITALIC SMALL U;Ll;0;L;<font> 0075;;;;N;;;;;
+1D463;MATHEMATICAL ITALIC SMALL V;Ll;0;L;<font> 0076;;;;N;;;;;
+1D464;MATHEMATICAL ITALIC SMALL W;Ll;0;L;<font> 0077;;;;N;;;;;
+1D465;MATHEMATICAL ITALIC SMALL X;Ll;0;L;<font> 0078;;;;N;;;;;
+1D466;MATHEMATICAL ITALIC SMALL Y;Ll;0;L;<font> 0079;;;;N;;;;;
+1D467;MATHEMATICAL ITALIC SMALL Z;Ll;0;L;<font> 007A;;;;N;;;;;
+1D468;MATHEMATICAL BOLD ITALIC CAPITAL A;Lu;0;L;<font> 0041;;;;N;;;;;
+1D469;MATHEMATICAL BOLD ITALIC CAPITAL B;Lu;0;L;<font> 0042;;;;N;;;;;
+1D46A;MATHEMATICAL BOLD ITALIC CAPITAL C;Lu;0;L;<font> 0043;;;;N;;;;;
+1D46B;MATHEMATICAL BOLD ITALIC CAPITAL D;Lu;0;L;<font> 0044;;;;N;;;;;
+1D46C;MATHEMATICAL BOLD ITALIC CAPITAL E;Lu;0;L;<font> 0045;;;;N;;;;;
+1D46D;MATHEMATICAL BOLD ITALIC CAPITAL F;Lu;0;L;<font> 0046;;;;N;;;;;
+1D46E;MATHEMATICAL BOLD ITALIC CAPITAL G;Lu;0;L;<font> 0047;;;;N;;;;;
+1D46F;MATHEMATICAL BOLD ITALIC CAPITAL H;Lu;0;L;<font> 0048;;;;N;;;;;
+1D470;MATHEMATICAL BOLD ITALIC CAPITAL I;Lu;0;L;<font> 0049;;;;N;;;;;
+1D471;MATHEMATICAL BOLD ITALIC CAPITAL J;Lu;0;L;<font> 004A;;;;N;;;;;
+1D472;MATHEMATICAL BOLD ITALIC CAPITAL K;Lu;0;L;<font> 004B;;;;N;;;;;
+1D473;MATHEMATICAL BOLD ITALIC CAPITAL L;Lu;0;L;<font> 004C;;;;N;;;;;
+1D474;MATHEMATICAL BOLD ITALIC CAPITAL M;Lu;0;L;<font> 004D;;;;N;;;;;
+1D475;MATHEMATICAL BOLD ITALIC CAPITAL N;Lu;0;L;<font> 004E;;;;N;;;;;
+1D476;MATHEMATICAL BOLD ITALIC CAPITAL O;Lu;0;L;<font> 004F;;;;N;;;;;
+1D477;MATHEMATICAL BOLD ITALIC CAPITAL P;Lu;0;L;<font> 0050;;;;N;;;;;
+1D478;MATHEMATICAL BOLD ITALIC CAPITAL Q;Lu;0;L;<font> 0051;;;;N;;;;;
+1D479;MATHEMATICAL BOLD ITALIC CAPITAL R;Lu;0;L;<font> 0052;;;;N;;;;;
+1D47A;MATHEMATICAL BOLD ITALIC CAPITAL S;Lu;0;L;<font> 0053;;;;N;;;;;
+1D47B;MATHEMATICAL BOLD ITALIC CAPITAL T;Lu;0;L;<font> 0054;;;;N;;;;;
+1D47C;MATHEMATICAL BOLD ITALIC CAPITAL U;Lu;0;L;<font> 0055;;;;N;;;;;
+1D47D;MATHEMATICAL BOLD ITALIC CAPITAL V;Lu;0;L;<font> 0056;;;;N;;;;;
+1D47E;MATHEMATICAL BOLD ITALIC CAPITAL W;Lu;0;L;<font> 0057;;;;N;;;;;
+1D47F;MATHEMATICAL BOLD ITALIC CAPITAL X;Lu;0;L;<font> 0058;;;;N;;;;;
+1D480;MATHEMATICAL BOLD ITALIC CAPITAL Y;Lu;0;L;<font> 0059;;;;N;;;;;
+1D481;MATHEMATICAL BOLD ITALIC CAPITAL Z;Lu;0;L;<font> 005A;;;;N;;;;;
+1D482;MATHEMATICAL BOLD ITALIC SMALL A;Ll;0;L;<font> 0061;;;;N;;;;;
+1D483;MATHEMATICAL BOLD ITALIC SMALL B;Ll;0;L;<font> 0062;;;;N;;;;;
+1D484;MATHEMATICAL BOLD ITALIC SMALL C;Ll;0;L;<font> 0063;;;;N;;;;;
+1D485;MATHEMATICAL BOLD ITALIC SMALL D;Ll;0;L;<font> 0064;;;;N;;;;;
+1D486;MATHEMATICAL BOLD ITALIC SMALL E;Ll;0;L;<font> 0065;;;;N;;;;;
+1D487;MATHEMATICAL BOLD ITALIC SMALL F;Ll;0;L;<font> 0066;;;;N;;;;;
+1D488;MATHEMATICAL BOLD ITALIC SMALL G;Ll;0;L;<font> 0067;;;;N;;;;;
+1D489;MATHEMATICAL BOLD ITALIC SMALL H;Ll;0;L;<font> 0068;;;;N;;;;;
+1D48A;MATHEMATICAL BOLD ITALIC SMALL I;Ll;0;L;<font> 0069;;;;N;;;;;
+1D48B;MATHEMATICAL BOLD ITALIC SMALL J;Ll;0;L;<font> 006A;;;;N;;;;;
+1D48C;MATHEMATICAL BOLD ITALIC SMALL K;Ll;0;L;<font> 006B;;;;N;;;;;
+1D48D;MATHEMATICAL BOLD ITALIC SMALL L;Ll;0;L;<font> 006C;;;;N;;;;;
+1D48E;MATHEMATICAL BOLD ITALIC SMALL M;Ll;0;L;<font> 006D;;;;N;;;;;
+1D48F;MATHEMATICAL BOLD ITALIC SMALL N;Ll;0;L;<font> 006E;;;;N;;;;;
+1D490;MATHEMATICAL BOLD ITALIC SMALL O;Ll;0;L;<font> 006F;;;;N;;;;;
+1D491;MATHEMATICAL BOLD ITALIC SMALL P;Ll;0;L;<font> 0070;;;;N;;;;;
+1D492;MATHEMATICAL BOLD ITALIC SMALL Q;Ll;0;L;<font> 0071;;;;N;;;;;
+1D493;MATHEMATICAL BOLD ITALIC SMALL R;Ll;0;L;<font> 0072;;;;N;;;;;
+1D494;MATHEMATICAL BOLD ITALIC SMALL S;Ll;0;L;<font> 0073;;;;N;;;;;
+1D495;MATHEMATICAL BOLD ITALIC SMALL T;Ll;0;L;<font> 0074;;;;N;;;;;
+1D496;MATHEMATICAL BOLD ITALIC SMALL U;Ll;0;L;<font> 0075;;;;N;;;;;
+1D497;MATHEMATICAL BOLD ITALIC SMALL V;Ll;0;L;<font> 0076;;;;N;;;;;
+1D498;MATHEMATICAL BOLD ITALIC SMALL W;Ll;0;L;<font> 0077;;;;N;;;;;
+1D499;MATHEMATICAL BOLD ITALIC SMALL X;Ll;0;L;<font> 0078;;;;N;;;;;
+1D49A;MATHEMATICAL BOLD ITALIC SMALL Y;Ll;0;L;<font> 0079;;;;N;;;;;
+1D49B;MATHEMATICAL BOLD ITALIC SMALL Z;Ll;0;L;<font> 007A;;;;N;;;;;
+1D49C;MATHEMATICAL SCRIPT CAPITAL A;Lu;0;L;<font> 0041;;;;N;;;;;
+1D49E;MATHEMATICAL SCRIPT CAPITAL C;Lu;0;L;<font> 0043;;;;N;;;;;
+1D49F;MATHEMATICAL SCRIPT CAPITAL D;Lu;0;L;<font> 0044;;;;N;;;;;
+1D4A2;MATHEMATICAL SCRIPT CAPITAL G;Lu;0;L;<font> 0047;;;;N;;;;;
+1D4A5;MATHEMATICAL SCRIPT CAPITAL J;Lu;0;L;<font> 004A;;;;N;;;;;
+1D4A6;MATHEMATICAL SCRIPT CAPITAL K;Lu;0;L;<font> 004B;;;;N;;;;;
+1D4A9;MATHEMATICAL SCRIPT CAPITAL N;Lu;0;L;<font> 004E;;;;N;;;;;
+1D4AA;MATHEMATICAL SCRIPT CAPITAL O;Lu;0;L;<font> 004F;;;;N;;;;;
+1D4AB;MATHEMATICAL SCRIPT CAPITAL P;Lu;0;L;<font> 0050;;;;N;;;;;
+1D4AC;MATHEMATICAL SCRIPT CAPITAL Q;Lu;0;L;<font> 0051;;;;N;;;;;
+1D4AE;MATHEMATICAL SCRIPT CAPITAL S;Lu;0;L;<font> 0053;;;;N;;;;;
+1D4AF;MATHEMATICAL SCRIPT CAPITAL T;Lu;0;L;<font> 0054;;;;N;;;;;
+1D4B0;MATHEMATICAL SCRIPT CAPITAL U;Lu;0;L;<font> 0055;;;;N;;;;;
+1D4B1;MATHEMATICAL SCRIPT CAPITAL V;Lu;0;L;<font> 0056;;;;N;;;;;
+1D4B2;MATHEMATICAL SCRIPT CAPITAL W;Lu;0;L;<font> 0057;;;;N;;;;;
+1D4B3;MATHEMATICAL SCRIPT CAPITAL X;Lu;0;L;<font> 0058;;;;N;;;;;
+1D4B4;MATHEMATICAL SCRIPT CAPITAL Y;Lu;0;L;<font> 0059;;;;N;;;;;
+1D4B5;MATHEMATICAL SCRIPT CAPITAL Z;Lu;0;L;<font> 005A;;;;N;;;;;
+1D4B6;MATHEMATICAL SCRIPT SMALL A;Ll;0;L;<font> 0061;;;;N;;;;;
+1D4B7;MATHEMATICAL SCRIPT SMALL B;Ll;0;L;<font> 0062;;;;N;;;;;
+1D4B8;MATHEMATICAL SCRIPT SMALL C;Ll;0;L;<font> 0063;;;;N;;;;;
+1D4B9;MATHEMATICAL SCRIPT SMALL D;Ll;0;L;<font> 0064;;;;N;;;;;
+1D4BB;MATHEMATICAL SCRIPT SMALL F;Ll;0;L;<font> 0066;;;;N;;;;;
+1D4BD;MATHEMATICAL SCRIPT SMALL H;Ll;0;L;<font> 0068;;;;N;;;;;
+1D4BE;MATHEMATICAL SCRIPT SMALL I;Ll;0;L;<font> 0069;;;;N;;;;;
+1D4BF;MATHEMATICAL SCRIPT SMALL J;Ll;0;L;<font> 006A;;;;N;;;;;
+1D4C0;MATHEMATICAL SCRIPT SMALL K;Ll;0;L;<font> 006B;;;;N;;;;;
+1D4C1;MATHEMATICAL SCRIPT SMALL L;Ll;0;L;<font> 006C;;;;N;;;;;
+1D4C2;MATHEMATICAL SCRIPT SMALL M;Ll;0;L;<font> 006D;;;;N;;;;;
+1D4C3;MATHEMATICAL SCRIPT SMALL N;Ll;0;L;<font> 006E;;;;N;;;;;
+1D4C5;MATHEMATICAL SCRIPT SMALL P;Ll;0;L;<font> 0070;;;;N;;;;;
+1D4C6;MATHEMATICAL SCRIPT SMALL Q;Ll;0;L;<font> 0071;;;;N;;;;;
+1D4C7;MATHEMATICAL SCRIPT SMALL R;Ll;0;L;<font> 0072;;;;N;;;;;
+1D4C8;MATHEMATICAL SCRIPT SMALL S;Ll;0;L;<font> 0073;;;;N;;;;;
+1D4C9;MATHEMATICAL SCRIPT SMALL T;Ll;0;L;<font> 0074;;;;N;;;;;
+1D4CA;MATHEMATICAL SCRIPT SMALL U;Ll;0;L;<font> 0075;;;;N;;;;;
+1D4CB;MATHEMATICAL SCRIPT SMALL V;Ll;0;L;<font> 0076;;;;N;;;;;
+1D4CC;MATHEMATICAL SCRIPT SMALL W;Ll;0;L;<font> 0077;;;;N;;;;;
+1D4CD;MATHEMATICAL SCRIPT SMALL X;Ll;0;L;<font> 0078;;;;N;;;;;
+1D4CE;MATHEMATICAL SCRIPT SMALL Y;Ll;0;L;<font> 0079;;;;N;;;;;
+1D4CF;MATHEMATICAL SCRIPT SMALL Z;Ll;0;L;<font> 007A;;;;N;;;;;
+1D4D0;MATHEMATICAL BOLD SCRIPT CAPITAL A;Lu;0;L;<font> 0041;;;;N;;;;;
+1D4D1;MATHEMATICAL BOLD SCRIPT CAPITAL B;Lu;0;L;<font> 0042;;;;N;;;;;
+1D4D2;MATHEMATICAL BOLD SCRIPT CAPITAL C;Lu;0;L;<font> 0043;;;;N;;;;;
+1D4D3;MATHEMATICAL BOLD SCRIPT CAPITAL D;Lu;0;L;<font> 0044;;;;N;;;;;
+1D4D4;MATHEMATICAL BOLD SCRIPT CAPITAL E;Lu;0;L;<font> 0045;;;;N;;;;;
+1D4D5;MATHEMATICAL BOLD SCRIPT CAPITAL F;Lu;0;L;<font> 0046;;;;N;;;;;
+1D4D6;MATHEMATICAL BOLD SCRIPT CAPITAL G;Lu;0;L;<font> 0047;;;;N;;;;;
+1D4D7;MATHEMATICAL BOLD SCRIPT CAPITAL H;Lu;0;L;<font> 0048;;;;N;;;;;
+1D4D8;MATHEMATICAL BOLD SCRIPT CAPITAL I;Lu;0;L;<font> 0049;;;;N;;;;;
+1D4D9;MATHEMATICAL BOLD SCRIPT CAPITAL J;Lu;0;L;<font> 004A;;;;N;;;;;
+1D4DA;MATHEMATICAL BOLD SCRIPT CAPITAL K;Lu;0;L;<font> 004B;;;;N;;;;;
+1D4DB;MATHEMATICAL BOLD SCRIPT CAPITAL L;Lu;0;L;<font> 004C;;;;N;;;;;
+1D4DC;MATHEMATICAL BOLD SCRIPT CAPITAL M;Lu;0;L;<font> 004D;;;;N;;;;;
+1D4DD;MATHEMATICAL BOLD SCRIPT CAPITAL N;Lu;0;L;<font> 004E;;;;N;;;;;
+1D4DE;MATHEMATICAL BOLD SCRIPT CAPITAL O;Lu;0;L;<font> 004F;;;;N;;;;;
+1D4DF;MATHEMATICAL BOLD SCRIPT CAPITAL P;Lu;0;L;<font> 0050;;;;N;;;;;
+1D4E0;MATHEMATICAL BOLD SCRIPT CAPITAL Q;Lu;0;L;<font> 0051;;;;N;;;;;
+1D4E1;MATHEMATICAL BOLD SCRIPT CAPITAL R;Lu;0;L;<font> 0052;;;;N;;;;;
+1D4E2;MATHEMATICAL BOLD SCRIPT CAPITAL S;Lu;0;L;<font> 0053;;;;N;;;;;
+1D4E3;MATHEMATICAL BOLD SCRIPT CAPITAL T;Lu;0;L;<font> 0054;;;;N;;;;;
+1D4E4;MATHEMATICAL BOLD SCRIPT CAPITAL U;Lu;0;L;<font> 0055;;;;N;;;;;
+1D4E5;MATHEMATICAL BOLD SCRIPT CAPITAL V;Lu;0;L;<font> 0056;;;;N;;;;;
+1D4E6;MATHEMATICAL BOLD SCRIPT CAPITAL W;Lu;0;L;<font> 0057;;;;N;;;;;
+1D4E7;MATHEMATICAL BOLD SCRIPT CAPITAL X;Lu;0;L;<font> 0058;;;;N;;;;;
+1D4E8;MATHEMATICAL BOLD SCRIPT CAPITAL Y;Lu;0;L;<font> 0059;;;;N;;;;;
+1D4E9;MATHEMATICAL BOLD SCRIPT CAPITAL Z;Lu;0;L;<font> 005A;;;;N;;;;;
+1D4EA;MATHEMATICAL BOLD SCRIPT SMALL A;Ll;0;L;<font> 0061;;;;N;;;;;
+1D4EB;MATHEMATICAL BOLD SCRIPT SMALL B;Ll;0;L;<font> 0062;;;;N;;;;;
+1D4EC;MATHEMATICAL BOLD SCRIPT SMALL C;Ll;0;L;<font> 0063;;;;N;;;;;
+1D4ED;MATHEMATICAL BOLD SCRIPT SMALL D;Ll;0;L;<font> 0064;;;;N;;;;;
+1D4EE;MATHEMATICAL BOLD SCRIPT SMALL E;Ll;0;L;<font> 0065;;;;N;;;;;
+1D4EF;MATHEMATICAL BOLD SCRIPT SMALL F;Ll;0;L;<font> 0066;;;;N;;;;;
+1D4F0;MATHEMATICAL BOLD SCRIPT SMALL G;Ll;0;L;<font> 0067;;;;N;;;;;
+1D4F1;MATHEMATICAL BOLD SCRIPT SMALL H;Ll;0;L;<font> 0068;;;;N;;;;;
+1D4F2;MATHEMATICAL BOLD SCRIPT SMALL I;Ll;0;L;<font> 0069;;;;N;;;;;
+1D4F3;MATHEMATICAL BOLD SCRIPT SMALL J;Ll;0;L;<font> 006A;;;;N;;;;;
+1D4F4;MATHEMATICAL BOLD SCRIPT SMALL K;Ll;0;L;<font> 006B;;;;N;;;;;
+1D4F5;MATHEMATICAL BOLD SCRIPT SMALL L;Ll;0;L;<font> 006C;;;;N;;;;;
+1D4F6;MATHEMATICAL BOLD SCRIPT SMALL M;Ll;0;L;<font> 006D;;;;N;;;;;
+1D4F7;MATHEMATICAL BOLD SCRIPT SMALL N;Ll;0;L;<font> 006E;;;;N;;;;;
+1D4F8;MATHEMATICAL BOLD SCRIPT SMALL O;Ll;0;L;<font> 006F;;;;N;;;;;
+1D4F9;MATHEMATICAL BOLD SCRIPT SMALL P;Ll;0;L;<font> 0070;;;;N;;;;;
+1D4FA;MATHEMATICAL BOLD SCRIPT SMALL Q;Ll;0;L;<font> 0071;;;;N;;;;;
+1D4FB;MATHEMATICAL BOLD SCRIPT SMALL R;Ll;0;L;<font> 0072;;;;N;;;;;
+1D4FC;MATHEMATICAL BOLD SCRIPT SMALL S;Ll;0;L;<font> 0073;;;;N;;;;;
+1D4FD;MATHEMATICAL BOLD SCRIPT SMALL T;Ll;0;L;<font> 0074;;;;N;;;;;
+1D4FE;MATHEMATICAL BOLD SCRIPT SMALL U;Ll;0;L;<font> 0075;;;;N;;;;;
+1D4FF;MATHEMATICAL BOLD SCRIPT SMALL V;Ll;0;L;<font> 0076;;;;N;;;;;
+1D500;MATHEMATICAL BOLD SCRIPT SMALL W;Ll;0;L;<font> 0077;;;;N;;;;;
+1D501;MATHEMATICAL BOLD SCRIPT SMALL X;Ll;0;L;<font> 0078;;;;N;;;;;
+1D502;MATHEMATICAL BOLD SCRIPT SMALL Y;Ll;0;L;<font> 0079;;;;N;;;;;
+1D503;MATHEMATICAL BOLD SCRIPT SMALL Z;Ll;0;L;<font> 007A;;;;N;;;;;
+1D504;MATHEMATICAL FRAKTUR CAPITAL A;Lu;0;L;<font> 0041;;;;N;;;;;
+1D505;MATHEMATICAL FRAKTUR CAPITAL B;Lu;0;L;<font> 0042;;;;N;;;;;
+1D507;MATHEMATICAL FRAKTUR CAPITAL D;Lu;0;L;<font> 0044;;;;N;;;;;
+1D508;MATHEMATICAL FRAKTUR CAPITAL E;Lu;0;L;<font> 0045;;;;N;;;;;
+1D509;MATHEMATICAL FRAKTUR CAPITAL F;Lu;0;L;<font> 0046;;;;N;;;;;
+1D50A;MATHEMATICAL FRAKTUR CAPITAL G;Lu;0;L;<font> 0047;;;;N;;;;;
+1D50D;MATHEMATICAL FRAKTUR CAPITAL J;Lu;0;L;<font> 004A;;;;N;;;;;
+1D50E;MATHEMATICAL FRAKTUR CAPITAL K;Lu;0;L;<font> 004B;;;;N;;;;;
+1D50F;MATHEMATICAL FRAKTUR CAPITAL L;Lu;0;L;<font> 004C;;;;N;;;;;
+1D510;MATHEMATICAL FRAKTUR CAPITAL M;Lu;0;L;<font> 004D;;;;N;;;;;
+1D511;MATHEMATICAL FRAKTUR CAPITAL N;Lu;0;L;<font> 004E;;;;N;;;;;
+1D512;MATHEMATICAL FRAKTUR CAPITAL O;Lu;0;L;<font> 004F;;;;N;;;;;
+1D513;MATHEMATICAL FRAKTUR CAPITAL P;Lu;0;L;<font> 0050;;;;N;;;;;
+1D514;MATHEMATICAL FRAKTUR CAPITAL Q;Lu;0;L;<font> 0051;;;;N;;;;;
+1D516;MATHEMATICAL FRAKTUR CAPITAL S;Lu;0;L;<font> 0053;;;;N;;;;;
+1D517;MATHEMATICAL FRAKTUR CAPITAL T;Lu;0;L;<font> 0054;;;;N;;;;;
+1D518;MATHEMATICAL FRAKTUR CAPITAL U;Lu;0;L;<font> 0055;;;;N;;;;;
+1D519;MATHEMATICAL FRAKTUR CAPITAL V;Lu;0;L;<font> 0056;;;;N;;;;;
+1D51A;MATHEMATICAL FRAKTUR CAPITAL W;Lu;0;L;<font> 0057;;;;N;;;;;
+1D51B;MATHEMATICAL FRAKTUR CAPITAL X;Lu;0;L;<font> 0058;;;;N;;;;;
+1D51C;MATHEMATICAL FRAKTUR CAPITAL Y;Lu;0;L;<font> 0059;;;;N;;;;;
+1D51E;MATHEMATICAL FRAKTUR SMALL A;Ll;0;L;<font> 0061;;;;N;;;;;
+1D51F;MATHEMATICAL FRAKTUR SMALL B;Ll;0;L;<font> 0062;;;;N;;;;;
+1D520;MATHEMATICAL FRAKTUR SMALL C;Ll;0;L;<font> 0063;;;;N;;;;;
+1D521;MATHEMATICAL FRAKTUR SMALL D;Ll;0;L;<font> 0064;;;;N;;;;;
+1D522;MATHEMATICAL FRAKTUR SMALL E;Ll;0;L;<font> 0065;;;;N;;;;;
+1D523;MATHEMATICAL FRAKTUR SMALL F;Ll;0;L;<font> 0066;;;;N;;;;;
+1D524;MATHEMATICAL FRAKTUR SMALL G;Ll;0;L;<font> 0067;;;;N;;;;;
+1D525;MATHEMATICAL FRAKTUR SMALL H;Ll;0;L;<font> 0068;;;;N;;;;;
+1D526;MATHEMATICAL FRAKTUR SMALL I;Ll;0;L;<font> 0069;;;;N;;;;;
+1D527;MATHEMATICAL FRAKTUR SMALL J;Ll;0;L;<font> 006A;;;;N;;;;;
+1D528;MATHEMATICAL FRAKTUR SMALL K;Ll;0;L;<font> 006B;;;;N;;;;;
+1D529;MATHEMATICAL FRAKTUR SMALL L;Ll;0;L;<font> 006C;;;;N;;;;;
+1D52A;MATHEMATICAL FRAKTUR SMALL M;Ll;0;L;<font> 006D;;;;N;;;;;
+1D52B;MATHEMATICAL FRAKTUR SMALL N;Ll;0;L;<font> 006E;;;;N;;;;;
+1D52C;MATHEMATICAL FRAKTUR SMALL O;Ll;0;L;<font> 006F;;;;N;;;;;
+1D52D;MATHEMATICAL FRAKTUR SMALL P;Ll;0;L;<font> 0070;;;;N;;;;;
+1D52E;MATHEMATICAL FRAKTUR SMALL Q;Ll;0;L;<font> 0071;;;;N;;;;;
+1D52F;MATHEMATICAL FRAKTUR SMALL R;Ll;0;L;<font> 0072;;;;N;;;;;
+1D530;MATHEMATICAL FRAKTUR SMALL S;Ll;0;L;<font> 0073;;;;N;;;;;
+1D531;MATHEMATICAL FRAKTUR SMALL T;Ll;0;L;<font> 0074;;;;N;;;;;
+1D532;MATHEMATICAL FRAKTUR SMALL U;Ll;0;L;<font> 0075;;;;N;;;;;
+1D533;MATHEMATICAL FRAKTUR SMALL V;Ll;0;L;<font> 0076;;;;N;;;;;
+1D534;MATHEMATICAL FRAKTUR SMALL W;Ll;0;L;<font> 0077;;;;N;;;;;
+1D535;MATHEMATICAL FRAKTUR SMALL X;Ll;0;L;<font> 0078;;;;N;;;;;
+1D536;MATHEMATICAL FRAKTUR SMALL Y;Ll;0;L;<font> 0079;;;;N;;;;;
+1D537;MATHEMATICAL FRAKTUR SMALL Z;Ll;0;L;<font> 007A;;;;N;;;;;
+1D538;MATHEMATICAL DOUBLE-STRUCK CAPITAL A;Lu;0;L;<font> 0041;;;;N;;;;;
+1D539;MATHEMATICAL DOUBLE-STRUCK CAPITAL B;Lu;0;L;<font> 0042;;;;N;;;;;
+1D53B;MATHEMATICAL DOUBLE-STRUCK CAPITAL D;Lu;0;L;<font> 0044;;;;N;;;;;
+1D53C;MATHEMATICAL DOUBLE-STRUCK CAPITAL E;Lu;0;L;<font> 0045;;;;N;;;;;
+1D53D;MATHEMATICAL DOUBLE-STRUCK CAPITAL F;Lu;0;L;<font> 0046;;;;N;;;;;
+1D53E;MATHEMATICAL DOUBLE-STRUCK CAPITAL G;Lu;0;L;<font> 0047;;;;N;;;;;
+1D540;MATHEMATICAL DOUBLE-STRUCK CAPITAL I;Lu;0;L;<font> 0049;;;;N;;;;;
+1D541;MATHEMATICAL DOUBLE-STRUCK CAPITAL J;Lu;0;L;<font> 004A;;;;N;;;;;
+1D542;MATHEMATICAL DOUBLE-STRUCK CAPITAL K;Lu;0;L;<font> 004B;;;;N;;;;;
+1D543;MATHEMATICAL DOUBLE-STRUCK CAPITAL L;Lu;0;L;<font> 004C;;;;N;;;;;
+1D544;MATHEMATICAL DOUBLE-STRUCK CAPITAL M;Lu;0;L;<font> 004D;;;;N;;;;;
+1D546;MATHEMATICAL DOUBLE-STRUCK CAPITAL O;Lu;0;L;<font> 004F;;;;N;;;;;
+1D54A;MATHEMATICAL DOUBLE-STRUCK CAPITAL S;Lu;0;L;<font> 0053;;;;N;;;;;
+1D54B;MATHEMATICAL DOUBLE-STRUCK CAPITAL T;Lu;0;L;<font> 0054;;;;N;;;;;
+1D54C;MATHEMATICAL DOUBLE-STRUCK CAPITAL U;Lu;0;L;<font> 0055;;;;N;;;;;
+1D54D;MATHEMATICAL DOUBLE-STRUCK CAPITAL V;Lu;0;L;<font> 0056;;;;N;;;;;
+1D54E;MATHEMATICAL DOUBLE-STRUCK CAPITAL W;Lu;0;L;<font> 0057;;;;N;;;;;
+1D54F;MATHEMATICAL DOUBLE-STRUCK CAPITAL X;Lu;0;L;<font> 0058;;;;N;;;;;
+1D550;MATHEMATICAL DOUBLE-STRUCK CAPITAL Y;Lu;0;L;<font> 0059;;;;N;;;;;
+1D552;MATHEMATICAL DOUBLE-STRUCK SMALL A;Ll;0;L;<font> 0061;;;;N;;;;;
+1D553;MATHEMATICAL DOUBLE-STRUCK SMALL B;Ll;0;L;<font> 0062;;;;N;;;;;
+1D554;MATHEMATICAL DOUBLE-STRUCK SMALL C;Ll;0;L;<font> 0063;;;;N;;;;;
+1D555;MATHEMATICAL DOUBLE-STRUCK SMALL D;Ll;0;L;<font> 0064;;;;N;;;;;
+1D556;MATHEMATICAL DOUBLE-STRUCK SMALL E;Ll;0;L;<font> 0065;;;;N;;;;;
+1D557;MATHEMATICAL DOUBLE-STRUCK SMALL F;Ll;0;L;<font> 0066;;;;N;;;;;
+1D558;MATHEMATICAL DOUBLE-STRUCK SMALL G;Ll;0;L;<font> 0067;;;;N;;;;;
+1D559;MATHEMATICAL DOUBLE-STRUCK SMALL H;Ll;0;L;<font> 0068;;;;N;;;;;
+1D55A;MATHEMATICAL DOUBLE-STRUCK SMALL I;Ll;0;L;<font> 0069;;;;N;;;;;
+1D55B;MATHEMATICAL DOUBLE-STRUCK SMALL J;Ll;0;L;<font> 006A;;;;N;;;;;
+1D55C;MATHEMATICAL DOUBLE-STRUCK SMALL K;Ll;0;L;<font> 006B;;;;N;;;;;
+1D55D;MATHEMATICAL DOUBLE-STRUCK SMALL L;Ll;0;L;<font> 006C;;;;N;;;;;
+1D55E;MATHEMATICAL DOUBLE-STRUCK SMALL M;Ll;0;L;<font> 006D;;;;N;;;;;
+1D55F;MATHEMATICAL DOUBLE-STRUCK SMALL N;Ll;0;L;<font> 006E;;;;N;;;;;
+1D560;MATHEMATICAL DOUBLE-STRUCK SMALL O;Ll;0;L;<font> 006F;;;;N;;;;;
+1D561;MATHEMATICAL DOUBLE-STRUCK SMALL P;Ll;0;L;<font> 0070;;;;N;;;;;
+1D562;MATHEMATICAL DOUBLE-STRUCK SMALL Q;Ll;0;L;<font> 0071;;;;N;;;;;
+1D563;MATHEMATICAL DOUBLE-STRUCK SMALL R;Ll;0;L;<font> 0072;;;;N;;;;;
+1D564;MATHEMATICAL DOUBLE-STRUCK SMALL S;Ll;0;L;<font> 0073;;;;N;;;;;
+1D565;MATHEMATICAL DOUBLE-STRUCK SMALL T;Ll;0;L;<font> 0074;;;;N;;;;;
+1D566;MATHEMATICAL DOUBLE-STRUCK SMALL U;Ll;0;L;<font> 0075;;;;N;;;;;
+1D567;MATHEMATICAL DOUBLE-STRUCK SMALL V;Ll;0;L;<font> 0076;;;;N;;;;;
+1D568;MATHEMATICAL DOUBLE-STRUCK SMALL W;Ll;0;L;<font> 0077;;;;N;;;;;
+1D569;MATHEMATICAL DOUBLE-STRUCK SMALL X;Ll;0;L;<font> 0078;;;;N;;;;;
+1D56A;MATHEMATICAL DOUBLE-STRUCK SMALL Y;Ll;0;L;<font> 0079;;;;N;;;;;
+1D56B;MATHEMATICAL DOUBLE-STRUCK SMALL Z;Ll;0;L;<font> 007A;;;;N;;;;;
+1D56C;MATHEMATICAL BOLD FRAKTUR CAPITAL A;Lu;0;L;<font> 0041;;;;N;;;;;
+1D56D;MATHEMATICAL BOLD FRAKTUR CAPITAL B;Lu;0;L;<font> 0042;;;;N;;;;;
+1D56E;MATHEMATICAL BOLD FRAKTUR CAPITAL C;Lu;0;L;<font> 0043;;;;N;;;;;
+1D56F;MATHEMATICAL BOLD FRAKTUR CAPITAL D;Lu;0;L;<font> 0044;;;;N;;;;;
+1D570;MATHEMATICAL BOLD FRAKTUR CAPITAL E;Lu;0;L;<font> 0045;;;;N;;;;;
+1D571;MATHEMATICAL BOLD FRAKTUR CAPITAL F;Lu;0;L;<font> 0046;;;;N;;;;;
+1D572;MATHEMATICAL BOLD FRAKTUR CAPITAL G;Lu;0;L;<font> 0047;;;;N;;;;;
+1D573;MATHEMATICAL BOLD FRAKTUR CAPITAL H;Lu;0;L;<font> 0048;;;;N;;;;;
+1D574;MATHEMATICAL BOLD FRAKTUR CAPITAL I;Lu;0;L;<font> 0049;;;;N;;;;;
+1D575;MATHEMATICAL BOLD FRAKTUR CAPITAL J;Lu;0;L;<font> 004A;;;;N;;;;;
+1D576;MATHEMATICAL BOLD FRAKTUR CAPITAL K;Lu;0;L;<font> 004B;;;;N;;;;;
+1D577;MATHEMATICAL BOLD FRAKTUR CAPITAL L;Lu;0;L;<font> 004C;;;;N;;;;;
+1D578;MATHEMATICAL BOLD FRAKTUR CAPITAL M;Lu;0;L;<font> 004D;;;;N;;;;;
+1D579;MATHEMATICAL BOLD FRAKTUR CAPITAL N;Lu;0;L;<font> 004E;;;;N;;;;;
+1D57A;MATHEMATICAL BOLD FRAKTUR CAPITAL O;Lu;0;L;<font> 004F;;;;N;;;;;
+1D57B;MATHEMATICAL BOLD FRAKTUR CAPITAL P;Lu;0;L;<font> 0050;;;;N;;;;;
+1D57C;MATHEMATICAL BOLD FRAKTUR CAPITAL Q;Lu;0;L;<font> 0051;;;;N;;;;;
+1D57D;MATHEMATICAL BOLD FRAKTUR CAPITAL R;Lu;0;L;<font> 0052;;;;N;;;;;
+1D57E;MATHEMATICAL BOLD FRAKTUR CAPITAL S;Lu;0;L;<font> 0053;;;;N;;;;;
+1D57F;MATHEMATICAL BOLD FRAKTUR CAPITAL T;Lu;0;L;<font> 0054;;;;N;;;;;
+1D580;MATHEMATICAL BOLD FRAKTUR CAPITAL U;Lu;0;L;<font> 0055;;;;N;;;;;
+1D581;MATHEMATICAL BOLD FRAKTUR CAPITAL V;Lu;0;L;<font> 0056;;;;N;;;;;
+1D582;MATHEMATICAL BOLD FRAKTUR CAPITAL W;Lu;0;L;<font> 0057;;;;N;;;;;
+1D583;MATHEMATICAL BOLD FRAKTUR CAPITAL X;Lu;0;L;<font> 0058;;;;N;;;;;
+1D584;MATHEMATICAL BOLD FRAKTUR CAPITAL Y;Lu;0;L;<font> 0059;;;;N;;;;;
+1D585;MATHEMATICAL BOLD FRAKTUR CAPITAL Z;Lu;0;L;<font> 005A;;;;N;;;;;
+1D586;MATHEMATICAL BOLD FRAKTUR SMALL A;Ll;0;L;<font> 0061;;;;N;;;;;
+1D587;MATHEMATICAL BOLD FRAKTUR SMALL B;Ll;0;L;<font> 0062;;;;N;;;;;
+1D588;MATHEMATICAL BOLD FRAKTUR SMALL C;Ll;0;L;<font> 0063;;;;N;;;;;
+1D589;MATHEMATICAL BOLD FRAKTUR SMALL D;Ll;0;L;<font> 0064;;;;N;;;;;
+1D58A;MATHEMATICAL BOLD FRAKTUR SMALL E;Ll;0;L;<font> 0065;;;;N;;;;;
+1D58B;MATHEMATICAL BOLD FRAKTUR SMALL F;Ll;0;L;<font> 0066;;;;N;;;;;
+1D58C;MATHEMATICAL BOLD FRAKTUR SMALL G;Ll;0;L;<font> 0067;;;;N;;;;;
+1D58D;MATHEMATICAL BOLD FRAKTUR SMALL H;Ll;0;L;<font> 0068;;;;N;;;;;
+1D58E;MATHEMATICAL BOLD FRAKTUR SMALL I;Ll;0;L;<font> 0069;;;;N;;;;;
+1D58F;MATHEMATICAL BOLD FRAKTUR SMALL J;Ll;0;L;<font> 006A;;;;N;;;;;
+1D590;MATHEMATICAL BOLD FRAKTUR SMALL K;Ll;0;L;<font> 006B;;;;N;;;;;
+1D591;MATHEMATICAL BOLD FRAKTUR SMALL L;Ll;0;L;<font> 006C;;;;N;;;;;
+1D592;MATHEMATICAL BOLD FRAKTUR SMALL M;Ll;0;L;<font> 006D;;;;N;;;;;
+1D593;MATHEMATICAL BOLD FRAKTUR SMALL N;Ll;0;L;<font> 006E;;;;N;;;;;
+1D594;MATHEMATICAL BOLD FRAKTUR SMALL O;Ll;0;L;<font> 006F;;;;N;;;;;
+1D595;MATHEMATICAL BOLD FRAKTUR SMALL P;Ll;0;L;<font> 0070;;;;N;;;;;
+1D596;MATHEMATICAL BOLD FRAKTUR SMALL Q;Ll;0;L;<font> 0071;;;;N;;;;;
+1D597;MATHEMATICAL BOLD FRAKTUR SMALL R;Ll;0;L;<font> 0072;;;;N;;;;;
+1D598;MATHEMATICAL BOLD FRAKTUR SMALL S;Ll;0;L;<font> 0073;;;;N;;;;;
+1D599;MATHEMATICAL BOLD FRAKTUR SMALL T;Ll;0;L;<font> 0074;;;;N;;;;;
+1D59A;MATHEMATICAL BOLD FRAKTUR SMALL U;Ll;0;L;<font> 0075;;;;N;;;;;
+1D59B;MATHEMATICAL BOLD FRAKTUR SMALL V;Ll;0;L;<font> 0076;;;;N;;;;;
+1D59C;MATHEMATICAL BOLD FRAKTUR SMALL W;Ll;0;L;<font> 0077;;;;N;;;;;
+1D59D;MATHEMATICAL BOLD FRAKTUR SMALL X;Ll;0;L;<font> 0078;;;;N;;;;;
+1D59E;MATHEMATICAL BOLD FRAKTUR SMALL Y;Ll;0;L;<font> 0079;;;;N;;;;;
+1D59F;MATHEMATICAL BOLD FRAKTUR SMALL Z;Ll;0;L;<font> 007A;;;;N;;;;;
+1D5A0;MATHEMATICAL SANS-SERIF CAPITAL A;Lu;0;L;<font> 0041;;;;N;;;;;
+1D5A1;MATHEMATICAL SANS-SERIF CAPITAL B;Lu;0;L;<font> 0042;;;;N;;;;;
+1D5A2;MATHEMATICAL SANS-SERIF CAPITAL C;Lu;0;L;<font> 0043;;;;N;;;;;
+1D5A3;MATHEMATICAL SANS-SERIF CAPITAL D;Lu;0;L;<font> 0044;;;;N;;;;;
+1D5A4;MATHEMATICAL SANS-SERIF CAPITAL E;Lu;0;L;<font> 0045;;;;N;;;;;
+1D5A5;MATHEMATICAL SANS-SERIF CAPITAL F;Lu;0;L;<font> 0046;;;;N;;;;;
+1D5A6;MATHEMATICAL SANS-SERIF CAPITAL G;Lu;0;L;<font> 0047;;;;N;;;;;
+1D5A7;MATHEMATICAL SANS-SERIF CAPITAL H;Lu;0;L;<font> 0048;;;;N;;;;;
+1D5A8;MATHEMATICAL SANS-SERIF CAPITAL I;Lu;0;L;<font> 0049;;;;N;;;;;
+1D5A9;MATHEMATICAL SANS-SERIF CAPITAL J;Lu;0;L;<font> 004A;;;;N;;;;;
+1D5AA;MATHEMATICAL SANS-SERIF CAPITAL K;Lu;0;L;<font> 004B;;;;N;;;;;
+1D5AB;MATHEMATICAL SANS-SERIF CAPITAL L;Lu;0;L;<font> 004C;;;;N;;;;;
+1D5AC;MATHEMATICAL SANS-SERIF CAPITAL M;Lu;0;L;<font> 004D;;;;N;;;;;
+1D5AD;MATHEMATICAL SANS-SERIF CAPITAL N;Lu;0;L;<font> 004E;;;;N;;;;;
+1D5AE;MATHEMATICAL SANS-SERIF CAPITAL O;Lu;0;L;<font> 004F;;;;N;;;;;
+1D5AF;MATHEMATICAL SANS-SERIF CAPITAL P;Lu;0;L;<font> 0050;;;;N;;;;;
+1D5B0;MATHEMATICAL SANS-SERIF CAPITAL Q;Lu;0;L;<font> 0051;;;;N;;;;;
+1D5B1;MATHEMATICAL SANS-SERIF CAPITAL R;Lu;0;L;<font> 0052;;;;N;;;;;
+1D5B2;MATHEMATICAL SANS-SERIF CAPITAL S;Lu;0;L;<font> 0053;;;;N;;;;;
+1D5B3;MATHEMATICAL SANS-SERIF CAPITAL T;Lu;0;L;<font> 0054;;;;N;;;;;
+1D5B4;MATHEMATICAL SANS-SERIF CAPITAL U;Lu;0;L;<font> 0055;;;;N;;;;;
+1D5B5;MATHEMATICAL SANS-SERIF CAPITAL V;Lu;0;L;<font> 0056;;;;N;;;;;
+1D5B6;MATHEMATICAL SANS-SERIF CAPITAL W;Lu;0;L;<font> 0057;;;;N;;;;;
+1D5B7;MATHEMATICAL SANS-SERIF CAPITAL X;Lu;0;L;<font> 0058;;;;N;;;;;
+1D5B8;MATHEMATICAL SANS-SERIF CAPITAL Y;Lu;0;L;<font> 0059;;;;N;;;;;
+1D5B9;MATHEMATICAL SANS-SERIF CAPITAL Z;Lu;0;L;<font> 005A;;;;N;;;;;
+1D5BA;MATHEMATICAL SANS-SERIF SMALL A;Ll;0;L;<font> 0061;;;;N;;;;;
+1D5BB;MATHEMATICAL SANS-SERIF SMALL B;Ll;0;L;<font> 0062;;;;N;;;;;
+1D5BC;MATHEMATICAL SANS-SERIF SMALL C;Ll;0;L;<font> 0063;;;;N;;;;;
+1D5BD;MATHEMATICAL SANS-SERIF SMALL D;Ll;0;L;<font> 0064;;;;N;;;;;
+1D5BE;MATHEMATICAL SANS-SERIF SMALL E;Ll;0;L;<font> 0065;;;;N;;;;;
+1D5BF;MATHEMATICAL SANS-SERIF SMALL F;Ll;0;L;<font> 0066;;;;N;;;;;
+1D5C0;MATHEMATICAL SANS-SERIF SMALL G;Ll;0;L;<font> 0067;;;;N;;;;;
+1D5C1;MATHEMATICAL SANS-SERIF SMALL H;Ll;0;L;<font> 0068;;;;N;;;;;
+1D5C2;MATHEMATICAL SANS-SERIF SMALL I;Ll;0;L;<font> 0069;;;;N;;;;;
+1D5C3;MATHEMATICAL SANS-SERIF SMALL J;Ll;0;L;<font> 006A;;;;N;;;;;
+1D5C4;MATHEMATICAL SANS-SERIF SMALL K;Ll;0;L;<font> 006B;;;;N;;;;;
+1D5C5;MATHEMATICAL SANS-SERIF SMALL L;Ll;0;L;<font> 006C;;;;N;;;;;
+1D5C6;MATHEMATICAL SANS-SERIF SMALL M;Ll;0;L;<font> 006D;;;;N;;;;;
+1D5C7;MATHEMATICAL SANS-SERIF SMALL N;Ll;0;L;<font> 006E;;;;N;;;;;
+1D5C8;MATHEMATICAL SANS-SERIF SMALL O;Ll;0;L;<font> 006F;;;;N;;;;;
+1D5C9;MATHEMATICAL SANS-SERIF SMALL P;Ll;0;L;<font> 0070;;;;N;;;;;
+1D5CA;MATHEMATICAL SANS-SERIF SMALL Q;Ll;0;L;<font> 0071;;;;N;;;;;
+1D5CB;MATHEMATICAL SANS-SERIF SMALL R;Ll;0;L;<font> 0072;;;;N;;;;;
+1D5CC;MATHEMATICAL SANS-SERIF SMALL S;Ll;0;L;<font> 0073;;;;N;;;;;
+1D5CD;MATHEMATICAL SANS-SERIF SMALL T;Ll;0;L;<font> 0074;;;;N;;;;;
+1D5CE;MATHEMATICAL SANS-SERIF SMALL U;Ll;0;L;<font> 0075;;;;N;;;;;
+1D5CF;MATHEMATICAL SANS-SERIF SMALL V;Ll;0;L;<font> 0076;;;;N;;;;;
+1D5D0;MATHEMATICAL SANS-SERIF SMALL W;Ll;0;L;<font> 0077;;;;N;;;;;
+1D5D1;MATHEMATICAL SANS-SERIF SMALL X;Ll;0;L;<font> 0078;;;;N;;;;;
+1D5D2;MATHEMATICAL SANS-SERIF SMALL Y;Ll;0;L;<font> 0079;;;;N;;;;;
+1D5D3;MATHEMATICAL SANS-SERIF SMALL Z;Ll;0;L;<font> 007A;;;;N;;;;;
+1D5D4;MATHEMATICAL SANS-SERIF BOLD CAPITAL A;Lu;0;L;<font> 0041;;;;N;;;;;
+1D5D5;MATHEMATICAL SANS-SERIF BOLD CAPITAL B;Lu;0;L;<font> 0042;;;;N;;;;;
+1D5D6;MATHEMATICAL SANS-SERIF BOLD CAPITAL C;Lu;0;L;<font> 0043;;;;N;;;;;
+1D5D7;MATHEMATICAL SANS-SERIF BOLD CAPITAL D;Lu;0;L;<font> 0044;;;;N;;;;;
+1D5D8;MATHEMATICAL SANS-SERIF BOLD CAPITAL E;Lu;0;L;<font> 0045;;;;N;;;;;
+1D5D9;MATHEMATICAL SANS-SERIF BOLD CAPITAL F;Lu;0;L;<font> 0046;;;;N;;;;;
+1D5DA;MATHEMATICAL SANS-SERIF BOLD CAPITAL G;Lu;0;L;<font> 0047;;;;N;;;;;
+1D5DB;MATHEMATICAL SANS-SERIF BOLD CAPITAL H;Lu;0;L;<font> 0048;;;;N;;;;;
+1D5DC;MATHEMATICAL SANS-SERIF BOLD CAPITAL I;Lu;0;L;<font> 0049;;;;N;;;;;
+1D5DD;MATHEMATICAL SANS-SERIF BOLD CAPITAL J;Lu;0;L;<font> 004A;;;;N;;;;;
+1D5DE;MATHEMATICAL SANS-SERIF BOLD CAPITAL K;Lu;0;L;<font> 004B;;;;N;;;;;
+1D5DF;MATHEMATICAL SANS-SERIF BOLD CAPITAL L;Lu;0;L;<font> 004C;;;;N;;;;;
+1D5E0;MATHEMATICAL SANS-SERIF BOLD CAPITAL M;Lu;0;L;<font> 004D;;;;N;;;;;
+1D5E1;MATHEMATICAL SANS-SERIF BOLD CAPITAL N;Lu;0;L;<font> 004E;;;;N;;;;;
+1D5E2;MATHEMATICAL SANS-SERIF BOLD CAPITAL O;Lu;0;L;<font> 004F;;;;N;;;;;
+1D5E3;MATHEMATICAL SANS-SERIF BOLD CAPITAL P;Lu;0;L;<font> 0050;;;;N;;;;;
+1D5E4;MATHEMATICAL SANS-SERIF BOLD CAPITAL Q;Lu;0;L;<font> 0051;;;;N;;;;;
+1D5E5;MATHEMATICAL SANS-SERIF BOLD CAPITAL R;Lu;0;L;<font> 0052;;;;N;;;;;
+1D5E6;MATHEMATICAL SANS-SERIF BOLD CAPITAL S;Lu;0;L;<font> 0053;;;;N;;;;;
+1D5E7;MATHEMATICAL SANS-SERIF BOLD CAPITAL T;Lu;0;L;<font> 0054;;;;N;;;;;
+1D5E8;MATHEMATICAL SANS-SERIF BOLD CAPITAL U;Lu;0;L;<font> 0055;;;;N;;;;;
+1D5E9;MATHEMATICAL SANS-SERIF BOLD CAPITAL V;Lu;0;L;<font> 0056;;;;N;;;;;
+1D5EA;MATHEMATICAL SANS-SERIF BOLD CAPITAL W;Lu;0;L;<font> 0057;;;;N;;;;;
+1D5EB;MATHEMATICAL SANS-SERIF BOLD CAPITAL X;Lu;0;L;<font> 0058;;;;N;;;;;
+1D5EC;MATHEMATICAL SANS-SERIF BOLD CAPITAL Y;Lu;0;L;<font> 0059;;;;N;;;;;
+1D5ED;MATHEMATICAL SANS-SERIF BOLD CAPITAL Z;Lu;0;L;<font> 005A;;;;N;;;;;
+1D5EE;MATHEMATICAL SANS-SERIF BOLD SMALL A;Ll;0;L;<font> 0061;;;;N;;;;;
+1D5EF;MATHEMATICAL SANS-SERIF BOLD SMALL B;Ll;0;L;<font> 0062;;;;N;;;;;
+1D5F0;MATHEMATICAL SANS-SERIF BOLD SMALL C;Ll;0;L;<font> 0063;;;;N;;;;;
+1D5F1;MATHEMATICAL SANS-SERIF BOLD SMALL D;Ll;0;L;<font> 0064;;;;N;;;;;
+1D5F2;MATHEMATICAL SANS-SERIF BOLD SMALL E;Ll;0;L;<font> 0065;;;;N;;;;;
+1D5F3;MATHEMATICAL SANS-SERIF BOLD SMALL F;Ll;0;L;<font> 0066;;;;N;;;;;
+1D5F4;MATHEMATICAL SANS-SERIF BOLD SMALL G;Ll;0;L;<font> 0067;;;;N;;;;;
+1D5F5;MATHEMATICAL SANS-SERIF BOLD SMALL H;Ll;0;L;<font> 0068;;;;N;;;;;
+1D5F6;MATHEMATICAL SANS-SERIF BOLD SMALL I;Ll;0;L;<font> 0069;;;;N;;;;;
+1D5F7;MATHEMATICAL SANS-SERIF BOLD SMALL J;Ll;0;L;<font> 006A;;;;N;;;;;
+1D5F8;MATHEMATICAL SANS-SERIF BOLD SMALL K;Ll;0;L;<font> 006B;;;;N;;;;;
+1D5F9;MATHEMATICAL SANS-SERIF BOLD SMALL L;Ll;0;L;<font> 006C;;;;N;;;;;
+1D5FA;MATHEMATICAL SANS-SERIF BOLD SMALL M;Ll;0;L;<font> 006D;;;;N;;;;;
+1D5FB;MATHEMATICAL SANS-SERIF BOLD SMALL N;Ll;0;L;<font> 006E;;;;N;;;;;
+1D5FC;MATHEMATICAL SANS-SERIF BOLD SMALL O;Ll;0;L;<font> 006F;;;;N;;;;;
+1D5FD;MATHEMATICAL SANS-SERIF BOLD SMALL P;Ll;0;L;<font> 0070;;;;N;;;;;
+1D5FE;MATHEMATICAL SANS-SERIF BOLD SMALL Q;Ll;0;L;<font> 0071;;;;N;;;;;
+1D5FF;MATHEMATICAL SANS-SERIF BOLD SMALL R;Ll;0;L;<font> 0072;;;;N;;;;;
+1D600;MATHEMATICAL SANS-SERIF BOLD SMALL S;Ll;0;L;<font> 0073;;;;N;;;;;
+1D601;MATHEMATICAL SANS-SERIF BOLD SMALL T;Ll;0;L;<font> 0074;;;;N;;;;;
+1D602;MATHEMATICAL SANS-SERIF BOLD SMALL U;Ll;0;L;<font> 0075;;;;N;;;;;
+1D603;MATHEMATICAL SANS-SERIF BOLD SMALL V;Ll;0;L;<font> 0076;;;;N;;;;;
+1D604;MATHEMATICAL SANS-SERIF BOLD SMALL W;Ll;0;L;<font> 0077;;;;N;;;;;
+1D605;MATHEMATICAL SANS-SERIF BOLD SMALL X;Ll;0;L;<font> 0078;;;;N;;;;;
+1D606;MATHEMATICAL SANS-SERIF BOLD SMALL Y;Ll;0;L;<font> 0079;;;;N;;;;;
+1D607;MATHEMATICAL SANS-SERIF BOLD SMALL Z;Ll;0;L;<font> 007A;;;;N;;;;;
+1D608;MATHEMATICAL SANS-SERIF ITALIC CAPITAL A;Lu;0;L;<font> 0041;;;;N;;;;;
+1D609;MATHEMATICAL SANS-SERIF ITALIC CAPITAL B;Lu;0;L;<font> 0042;;;;N;;;;;
+1D60A;MATHEMATICAL SANS-SERIF ITALIC CAPITAL C;Lu;0;L;<font> 0043;;;;N;;;;;
+1D60B;MATHEMATICAL SANS-SERIF ITALIC CAPITAL D;Lu;0;L;<font> 0044;;;;N;;;;;
+1D60C;MATHEMATICAL SANS-SERIF ITALIC CAPITAL E;Lu;0;L;<font> 0045;;;;N;;;;;
+1D60D;MATHEMATICAL SANS-SERIF ITALIC CAPITAL F;Lu;0;L;<font> 0046;;;;N;;;;;
+1D60E;MATHEMATICAL SANS-SERIF ITALIC CAPITAL G;Lu;0;L;<font> 0047;;;;N;;;;;
+1D60F;MATHEMATICAL SANS-SERIF ITALIC CAPITAL H;Lu;0;L;<font> 0048;;;;N;;;;;
+1D610;MATHEMATICAL SANS-SERIF ITALIC CAPITAL I;Lu;0;L;<font> 0049;;;;N;;;;;
+1D611;MATHEMATICAL SANS-SERIF ITALIC CAPITAL J;Lu;0;L;<font> 004A;;;;N;;;;;
+1D612;MATHEMATICAL SANS-SERIF ITALIC CAPITAL K;Lu;0;L;<font> 004B;;;;N;;;;;
+1D613;MATHEMATICAL SANS-SERIF ITALIC CAPITAL L;Lu;0;L;<font> 004C;;;;N;;;;;
+1D614;MATHEMATICAL SANS-SERIF ITALIC CAPITAL M;Lu;0;L;<font> 004D;;;;N;;;;;
+1D615;MATHEMATICAL SANS-SERIF ITALIC CAPITAL N;Lu;0;L;<font> 004E;;;;N;;;;;
+1D616;MATHEMATICAL SANS-SERIF ITALIC CAPITAL O;Lu;0;L;<font> 004F;;;;N;;;;;
+1D617;MATHEMATICAL SANS-SERIF ITALIC CAPITAL P;Lu;0;L;<font> 0050;;;;N;;;;;
+1D618;MATHEMATICAL SANS-SERIF ITALIC CAPITAL Q;Lu;0;L;<font> 0051;;;;N;;;;;
+1D619;MATHEMATICAL SANS-SERIF ITALIC CAPITAL R;Lu;0;L;<font> 0052;;;;N;;;;;
+1D61A;MATHEMATICAL SANS-SERIF ITALIC CAPITAL S;Lu;0;L;<font> 0053;;;;N;;;;;
+1D61B;MATHEMATICAL SANS-SERIF ITALIC CAPITAL T;Lu;0;L;<font> 0054;;;;N;;;;;
+1D61C;MATHEMATICAL SANS-SERIF ITALIC CAPITAL U;Lu;0;L;<font> 0055;;;;N;;;;;
+1D61D;MATHEMATICAL SANS-SERIF ITALIC CAPITAL V;Lu;0;L;<font> 0056;;;;N;;;;;
+1D61E;MATHEMATICAL SANS-SERIF ITALIC CAPITAL W;Lu;0;L;<font> 0057;;;;N;;;;;
+1D61F;MATHEMATICAL SANS-SERIF ITALIC CAPITAL X;Lu;0;L;<font> 0058;;;;N;;;;;
+1D620;MATHEMATICAL SANS-SERIF ITALIC CAPITAL Y;Lu;0;L;<font> 0059;;;;N;;;;;
+1D621;MATHEMATICAL SANS-SERIF ITALIC CAPITAL Z;Lu;0;L;<font> 005A;;;;N;;;;;
+1D622;MATHEMATICAL SANS-SERIF ITALIC SMALL A;Ll;0;L;<font> 0061;;;;N;;;;;
+1D623;MATHEMATICAL SANS-SERIF ITALIC SMALL B;Ll;0;L;<font> 0062;;;;N;;;;;
+1D624;MATHEMATICAL SANS-SERIF ITALIC SMALL C;Ll;0;L;<font> 0063;;;;N;;;;;
+1D625;MATHEMATICAL SANS-SERIF ITALIC SMALL D;Ll;0;L;<font> 0064;;;;N;;;;;
+1D626;MATHEMATICAL SANS-SERIF ITALIC SMALL E;Ll;0;L;<font> 0065;;;;N;;;;;
+1D627;MATHEMATICAL SANS-SERIF ITALIC SMALL F;Ll;0;L;<font> 0066;;;;N;;;;;
+1D628;MATHEMATICAL SANS-SERIF ITALIC SMALL G;Ll;0;L;<font> 0067;;;;N;;;;;
+1D629;MATHEMATICAL SANS-SERIF ITALIC SMALL H;Ll;0;L;<font> 0068;;;;N;;;;;
+1D62A;MATHEMATICAL SANS-SERIF ITALIC SMALL I;Ll;0;L;<font> 0069;;;;N;;;;;
+1D62B;MATHEMATICAL SANS-SERIF ITALIC SMALL J;Ll;0;L;<font> 006A;;;;N;;;;;
+1D62C;MATHEMATICAL SANS-SERIF ITALIC SMALL K;Ll;0;L;<font> 006B;;;;N;;;;;
+1D62D;MATHEMATICAL SANS-SERIF ITALIC SMALL L;Ll;0;L;<font> 006C;;;;N;;;;;
+1D62E;MATHEMATICAL SANS-SERIF ITALIC SMALL M;Ll;0;L;<font> 006D;;;;N;;;;;
+1D62F;MATHEMATICAL SANS-SERIF ITALIC SMALL N;Ll;0;L;<font> 006E;;;;N;;;;;
+1D630;MATHEMATICAL SANS-SERIF ITALIC SMALL O;Ll;0;L;<font> 006F;;;;N;;;;;
+1D631;MATHEMATICAL SANS-SERIF ITALIC SMALL P;Ll;0;L;<font> 0070;;;;N;;;;;
+1D632;MATHEMATICAL SANS-SERIF ITALIC SMALL Q;Ll;0;L;<font> 0071;;;;N;;;;;
+1D633;MATHEMATICAL SANS-SERIF ITALIC SMALL R;Ll;0;L;<font> 0072;;;;N;;;;;
+1D634;MATHEMATICAL SANS-SERIF ITALIC SMALL S;Ll;0;L;<font> 0073;;;;N;;;;;
+1D635;MATHEMATICAL SANS-SERIF ITALIC SMALL T;Ll;0;L;<font> 0074;;;;N;;;;;
+1D636;MATHEMATICAL SANS-SERIF ITALIC SMALL U;Ll;0;L;<font> 0075;;;;N;;;;;
+1D637;MATHEMATICAL SANS-SERIF ITALIC SMALL V;Ll;0;L;<font> 0076;;;;N;;;;;
+1D638;MATHEMATICAL SANS-SERIF ITALIC SMALL W;Ll;0;L;<font> 0077;;;;N;;;;;
+1D639;MATHEMATICAL SANS-SERIF ITALIC SMALL X;Ll;0;L;<font> 0078;;;;N;;;;;
+1D63A;MATHEMATICAL SANS-SERIF ITALIC SMALL Y;Ll;0;L;<font> 0079;;;;N;;;;;
+1D63B;MATHEMATICAL SANS-SERIF ITALIC SMALL Z;Ll;0;L;<font> 007A;;;;N;;;;;
+1D63C;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL A;Lu;0;L;<font> 0041;;;;N;;;;;
+1D63D;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL B;Lu;0;L;<font> 0042;;;;N;;;;;
+1D63E;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL C;Lu;0;L;<font> 0043;;;;N;;;;;
+1D63F;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL D;Lu;0;L;<font> 0044;;;;N;;;;;
+1D640;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL E;Lu;0;L;<font> 0045;;;;N;;;;;
+1D641;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL F;Lu;0;L;<font> 0046;;;;N;;;;;
+1D642;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL G;Lu;0;L;<font> 0047;;;;N;;;;;
+1D643;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL H;Lu;0;L;<font> 0048;;;;N;;;;;
+1D644;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL I;Lu;0;L;<font> 0049;;;;N;;;;;
+1D645;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL J;Lu;0;L;<font> 004A;;;;N;;;;;
+1D646;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL K;Lu;0;L;<font> 004B;;;;N;;;;;
+1D647;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL L;Lu;0;L;<font> 004C;;;;N;;;;;
+1D648;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL M;Lu;0;L;<font> 004D;;;;N;;;;;
+1D649;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL N;Lu;0;L;<font> 004E;;;;N;;;;;
+1D64A;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL O;Lu;0;L;<font> 004F;;;;N;;;;;
+1D64B;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL P;Lu;0;L;<font> 0050;;;;N;;;;;
+1D64C;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL Q;Lu;0;L;<font> 0051;;;;N;;;;;
+1D64D;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL R;Lu;0;L;<font> 0052;;;;N;;;;;
+1D64E;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL S;Lu;0;L;<font> 0053;;;;N;;;;;
+1D64F;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL T;Lu;0;L;<font> 0054;;;;N;;;;;
+1D650;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL U;Lu;0;L;<font> 0055;;;;N;;;;;
+1D651;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL V;Lu;0;L;<font> 0056;;;;N;;;;;
+1D652;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL W;Lu;0;L;<font> 0057;;;;N;;;;;
+1D653;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL X;Lu;0;L;<font> 0058;;;;N;;;;;
+1D654;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL Y;Lu;0;L;<font> 0059;;;;N;;;;;
+1D655;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL Z;Lu;0;L;<font> 005A;;;;N;;;;;
+1D656;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL A;Ll;0;L;<font> 0061;;;;N;;;;;
+1D657;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL B;Ll;0;L;<font> 0062;;;;N;;;;;
+1D658;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL C;Ll;0;L;<font> 0063;;;;N;;;;;
+1D659;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL D;Ll;0;L;<font> 0064;;;;N;;;;;
+1D65A;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL E;Ll;0;L;<font> 0065;;;;N;;;;;
+1D65B;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL F;Ll;0;L;<font> 0066;;;;N;;;;;
+1D65C;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL G;Ll;0;L;<font> 0067;;;;N;;;;;
+1D65D;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL H;Ll;0;L;<font> 0068;;;;N;;;;;
+1D65E;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL I;Ll;0;L;<font> 0069;;;;N;;;;;
+1D65F;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL J;Ll;0;L;<font> 006A;;;;N;;;;;
+1D660;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL K;Ll;0;L;<font> 006B;;;;N;;;;;
+1D661;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL L;Ll;0;L;<font> 006C;;;;N;;;;;
+1D662;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL M;Ll;0;L;<font> 006D;;;;N;;;;;
+1D663;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL N;Ll;0;L;<font> 006E;;;;N;;;;;
+1D664;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL O;Ll;0;L;<font> 006F;;;;N;;;;;
+1D665;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL P;Ll;0;L;<font> 0070;;;;N;;;;;
+1D666;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL Q;Ll;0;L;<font> 0071;;;;N;;;;;
+1D667;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL R;Ll;0;L;<font> 0072;;;;N;;;;;
+1D668;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL S;Ll;0;L;<font> 0073;;;;N;;;;;
+1D669;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL T;Ll;0;L;<font> 0074;;;;N;;;;;
+1D66A;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL U;Ll;0;L;<font> 0075;;;;N;;;;;
+1D66B;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL V;Ll;0;L;<font> 0076;;;;N;;;;;
+1D66C;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL W;Ll;0;L;<font> 0077;;;;N;;;;;
+1D66D;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL X;Ll;0;L;<font> 0078;;;;N;;;;;
+1D66E;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL Y;Ll;0;L;<font> 0079;;;;N;;;;;
+1D66F;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL Z;Ll;0;L;<font> 007A;;;;N;;;;;
+1D670;MATHEMATICAL MONOSPACE CAPITAL A;Lu;0;L;<font> 0041;;;;N;;;;;
+1D671;MATHEMATICAL MONOSPACE CAPITAL B;Lu;0;L;<font> 0042;;;;N;;;;;
+1D672;MATHEMATICAL MONOSPACE CAPITAL C;Lu;0;L;<font> 0043;;;;N;;;;;
+1D673;MATHEMATICAL MONOSPACE CAPITAL D;Lu;0;L;<font> 0044;;;;N;;;;;
+1D674;MATHEMATICAL MONOSPACE CAPITAL E;Lu;0;L;<font> 0045;;;;N;;;;;
+1D675;MATHEMATICAL MONOSPACE CAPITAL F;Lu;0;L;<font> 0046;;;;N;;;;;
+1D676;MATHEMATICAL MONOSPACE CAPITAL G;Lu;0;L;<font> 0047;;;;N;;;;;
+1D677;MATHEMATICAL MONOSPACE CAPITAL H;Lu;0;L;<font> 0048;;;;N;;;;;
+1D678;MATHEMATICAL MONOSPACE CAPITAL I;Lu;0;L;<font> 0049;;;;N;;;;;
+1D679;MATHEMATICAL MONOSPACE CAPITAL J;Lu;0;L;<font> 004A;;;;N;;;;;
+1D67A;MATHEMATICAL MONOSPACE CAPITAL K;Lu;0;L;<font> 004B;;;;N;;;;;
+1D67B;MATHEMATICAL MONOSPACE CAPITAL L;Lu;0;L;<font> 004C;;;;N;;;;;
+1D67C;MATHEMATICAL MONOSPACE CAPITAL M;Lu;0;L;<font> 004D;;;;N;;;;;
+1D67D;MATHEMATICAL MONOSPACE CAPITAL N;Lu;0;L;<font> 004E;;;;N;;;;;
+1D67E;MATHEMATICAL MONOSPACE CAPITAL O;Lu;0;L;<font> 004F;;;;N;;;;;
+1D67F;MATHEMATICAL MONOSPACE CAPITAL P;Lu;0;L;<font> 0050;;;;N;;;;;
+1D680;MATHEMATICAL MONOSPACE CAPITAL Q;Lu;0;L;<font> 0051;;;;N;;;;;
+1D681;MATHEMATICAL MONOSPACE CAPITAL R;Lu;0;L;<font> 0052;;;;N;;;;;
+1D682;MATHEMATICAL MONOSPACE CAPITAL S;Lu;0;L;<font> 0053;;;;N;;;;;
+1D683;MATHEMATICAL MONOSPACE CAPITAL T;Lu;0;L;<font> 0054;;;;N;;;;;
+1D684;MATHEMATICAL MONOSPACE CAPITAL U;Lu;0;L;<font> 0055;;;;N;;;;;
+1D685;MATHEMATICAL MONOSPACE CAPITAL V;Lu;0;L;<font> 0056;;;;N;;;;;
+1D686;MATHEMATICAL MONOSPACE CAPITAL W;Lu;0;L;<font> 0057;;;;N;;;;;
+1D687;MATHEMATICAL MONOSPACE CAPITAL X;Lu;0;L;<font> 0058;;;;N;;;;;
+1D688;MATHEMATICAL MONOSPACE CAPITAL Y;Lu;0;L;<font> 0059;;;;N;;;;;
+1D689;MATHEMATICAL MONOSPACE CAPITAL Z;Lu;0;L;<font> 005A;;;;N;;;;;
+1D68A;MATHEMATICAL MONOSPACE SMALL A;Ll;0;L;<font> 0061;;;;N;;;;;
+1D68B;MATHEMATICAL MONOSPACE SMALL B;Ll;0;L;<font> 0062;;;;N;;;;;
+1D68C;MATHEMATICAL MONOSPACE SMALL C;Ll;0;L;<font> 0063;;;;N;;;;;
+1D68D;MATHEMATICAL MONOSPACE SMALL D;Ll;0;L;<font> 0064;;;;N;;;;;
+1D68E;MATHEMATICAL MONOSPACE SMALL E;Ll;0;L;<font> 0065;;;;N;;;;;
+1D68F;MATHEMATICAL MONOSPACE SMALL F;Ll;0;L;<font> 0066;;;;N;;;;;
+1D690;MATHEMATICAL MONOSPACE SMALL G;Ll;0;L;<font> 0067;;;;N;;;;;
+1D691;MATHEMATICAL MONOSPACE SMALL H;Ll;0;L;<font> 0068;;;;N;;;;;
+1D692;MATHEMATICAL MONOSPACE SMALL I;Ll;0;L;<font> 0069;;;;N;;;;;
+1D693;MATHEMATICAL MONOSPACE SMALL J;Ll;0;L;<font> 006A;;;;N;;;;;
+1D694;MATHEMATICAL MONOSPACE SMALL K;Ll;0;L;<font> 006B;;;;N;;;;;
+1D695;MATHEMATICAL MONOSPACE SMALL L;Ll;0;L;<font> 006C;;;;N;;;;;
+1D696;MATHEMATICAL MONOSPACE SMALL M;Ll;0;L;<font> 006D;;;;N;;;;;
+1D697;MATHEMATICAL MONOSPACE SMALL N;Ll;0;L;<font> 006E;;;;N;;;;;
+1D698;MATHEMATICAL MONOSPACE SMALL O;Ll;0;L;<font> 006F;;;;N;;;;;
+1D699;MATHEMATICAL MONOSPACE SMALL P;Ll;0;L;<font> 0070;;;;N;;;;;
+1D69A;MATHEMATICAL MONOSPACE SMALL Q;Ll;0;L;<font> 0071;;;;N;;;;;
+1D69B;MATHEMATICAL MONOSPACE SMALL R;Ll;0;L;<font> 0072;;;;N;;;;;
+1D69C;MATHEMATICAL MONOSPACE SMALL S;Ll;0;L;<font> 0073;;;;N;;;;;
+1D69D;MATHEMATICAL MONOSPACE SMALL T;Ll;0;L;<font> 0074;;;;N;;;;;
+1D69E;MATHEMATICAL MONOSPACE SMALL U;Ll;0;L;<font> 0075;;;;N;;;;;
+1D69F;MATHEMATICAL MONOSPACE SMALL V;Ll;0;L;<font> 0076;;;;N;;;;;
+1D6A0;MATHEMATICAL MONOSPACE SMALL W;Ll;0;L;<font> 0077;;;;N;;;;;
+1D6A1;MATHEMATICAL MONOSPACE SMALL X;Ll;0;L;<font> 0078;;;;N;;;;;
+1D6A2;MATHEMATICAL MONOSPACE SMALL Y;Ll;0;L;<font> 0079;;;;N;;;;;
+1D6A3;MATHEMATICAL MONOSPACE SMALL Z;Ll;0;L;<font> 007A;;;;N;;;;;
+1D6A4;MATHEMATICAL ITALIC SMALL DOTLESS I;Ll;0;L;<font> 0131;;;;N;;;;;
+1D6A5;MATHEMATICAL ITALIC SMALL DOTLESS J;Ll;0;L;<font> 0237;;;;N;;;;;
+1D6A8;MATHEMATICAL BOLD CAPITAL ALPHA;Lu;0;L;<font> 0391;;;;N;;;;;
+1D6A9;MATHEMATICAL BOLD CAPITAL BETA;Lu;0;L;<font> 0392;;;;N;;;;;
+1D6AA;MATHEMATICAL BOLD CAPITAL GAMMA;Lu;0;L;<font> 0393;;;;N;;;;;
+1D6AB;MATHEMATICAL BOLD CAPITAL DELTA;Lu;0;L;<font> 0394;;;;N;;;;;
+1D6AC;MATHEMATICAL BOLD CAPITAL EPSILON;Lu;0;L;<font> 0395;;;;N;;;;;
+1D6AD;MATHEMATICAL BOLD CAPITAL ZETA;Lu;0;L;<font> 0396;;;;N;;;;;
+1D6AE;MATHEMATICAL BOLD CAPITAL ETA;Lu;0;L;<font> 0397;;;;N;;;;;
+1D6AF;MATHEMATICAL BOLD CAPITAL THETA;Lu;0;L;<font> 0398;;;;N;;;;;
+1D6B0;MATHEMATICAL BOLD CAPITAL IOTA;Lu;0;L;<font> 0399;;;;N;;;;;
+1D6B1;MATHEMATICAL BOLD CAPITAL KAPPA;Lu;0;L;<font> 039A;;;;N;;;;;
+1D6B2;MATHEMATICAL BOLD CAPITAL LAMDA;Lu;0;L;<font> 039B;;;;N;;;;;
+1D6B3;MATHEMATICAL BOLD CAPITAL MU;Lu;0;L;<font> 039C;;;;N;;;;;
+1D6B4;MATHEMATICAL BOLD CAPITAL NU;Lu;0;L;<font> 039D;;;;N;;;;;
+1D6B5;MATHEMATICAL BOLD CAPITAL XI;Lu;0;L;<font> 039E;;;;N;;;;;
+1D6B6;MATHEMATICAL BOLD CAPITAL OMICRON;Lu;0;L;<font> 039F;;;;N;;;;;
+1D6B7;MATHEMATICAL BOLD CAPITAL PI;Lu;0;L;<font> 03A0;;;;N;;;;;
+1D6B8;MATHEMATICAL BOLD CAPITAL RHO;Lu;0;L;<font> 03A1;;;;N;;;;;
+1D6B9;MATHEMATICAL BOLD CAPITAL THETA SYMBOL;Lu;0;L;<font> 03F4;;;;N;;;;;
+1D6BA;MATHEMATICAL BOLD CAPITAL SIGMA;Lu;0;L;<font> 03A3;;;;N;;;;;
+1D6BB;MATHEMATICAL BOLD CAPITAL TAU;Lu;0;L;<font> 03A4;;;;N;;;;;
+1D6BC;MATHEMATICAL BOLD CAPITAL UPSILON;Lu;0;L;<font> 03A5;;;;N;;;;;
+1D6BD;MATHEMATICAL BOLD CAPITAL PHI;Lu;0;L;<font> 03A6;;;;N;;;;;
+1D6BE;MATHEMATICAL BOLD CAPITAL CHI;Lu;0;L;<font> 03A7;;;;N;;;;;
+1D6BF;MATHEMATICAL BOLD CAPITAL PSI;Lu;0;L;<font> 03A8;;;;N;;;;;
+1D6C0;MATHEMATICAL BOLD CAPITAL OMEGA;Lu;0;L;<font> 03A9;;;;N;;;;;
+1D6C1;MATHEMATICAL BOLD NABLA;Sm;0;L;<font> 2207;;;;N;;;;;
+1D6C2;MATHEMATICAL BOLD SMALL ALPHA;Ll;0;L;<font> 03B1;;;;N;;;;;
+1D6C3;MATHEMATICAL BOLD SMALL BETA;Ll;0;L;<font> 03B2;;;;N;;;;;
+1D6C4;MATHEMATICAL BOLD SMALL GAMMA;Ll;0;L;<font> 03B3;;;;N;;;;;
+1D6C5;MATHEMATICAL BOLD SMALL DELTA;Ll;0;L;<font> 03B4;;;;N;;;;;
+1D6C6;MATHEMATICAL BOLD SMALL EPSILON;Ll;0;L;<font> 03B5;;;;N;;;;;
+1D6C7;MATHEMATICAL BOLD SMALL ZETA;Ll;0;L;<font> 03B6;;;;N;;;;;
+1D6C8;MATHEMATICAL BOLD SMALL ETA;Ll;0;L;<font> 03B7;;;;N;;;;;
+1D6C9;MATHEMATICAL BOLD SMALL THETA;Ll;0;L;<font> 03B8;;;;N;;;;;
+1D6CA;MATHEMATICAL BOLD SMALL IOTA;Ll;0;L;<font> 03B9;;;;N;;;;;
+1D6CB;MATHEMATICAL BOLD SMALL KAPPA;Ll;0;L;<font> 03BA;;;;N;;;;;
+1D6CC;MATHEMATICAL BOLD SMALL LAMDA;Ll;0;L;<font> 03BB;;;;N;;;;;
+1D6CD;MATHEMATICAL BOLD SMALL MU;Ll;0;L;<font> 03BC;;;;N;;;;;
+1D6CE;MATHEMATICAL BOLD SMALL NU;Ll;0;L;<font> 03BD;;;;N;;;;;
+1D6CF;MATHEMATICAL BOLD SMALL XI;Ll;0;L;<font> 03BE;;;;N;;;;;
+1D6D0;MATHEMATICAL BOLD SMALL OMICRON;Ll;0;L;<font> 03BF;;;;N;;;;;
+1D6D1;MATHEMATICAL BOLD SMALL PI;Ll;0;L;<font> 03C0;;;;N;;;;;
+1D6D2;MATHEMATICAL BOLD SMALL RHO;Ll;0;L;<font> 03C1;;;;N;;;;;
+1D6D3;MATHEMATICAL BOLD SMALL FINAL SIGMA;Ll;0;L;<font> 03C2;;;;N;;;;;
+1D6D4;MATHEMATICAL BOLD SMALL SIGMA;Ll;0;L;<font> 03C3;;;;N;;;;;
+1D6D5;MATHEMATICAL BOLD SMALL TAU;Ll;0;L;<font> 03C4;;;;N;;;;;
+1D6D6;MATHEMATICAL BOLD SMALL UPSILON;Ll;0;L;<font> 03C5;;;;N;;;;;
+1D6D7;MATHEMATICAL BOLD SMALL PHI;Ll;0;L;<font> 03C6;;;;N;;;;;
+1D6D8;MATHEMATICAL BOLD SMALL CHI;Ll;0;L;<font> 03C7;;;;N;;;;;
+1D6D9;MATHEMATICAL BOLD SMALL PSI;Ll;0;L;<font> 03C8;;;;N;;;;;
+1D6DA;MATHEMATICAL BOLD SMALL OMEGA;Ll;0;L;<font> 03C9;;;;N;;;;;
+1D6DB;MATHEMATICAL BOLD PARTIAL DIFFERENTIAL;Sm;0;ON;<font> 2202;;;;Y;;;;;
+1D6DC;MATHEMATICAL BOLD EPSILON SYMBOL;Ll;0;L;<font> 03F5;;;;N;;;;;
+1D6DD;MATHEMATICAL BOLD THETA SYMBOL;Ll;0;L;<font> 03D1;;;;N;;;;;
+1D6DE;MATHEMATICAL BOLD KAPPA SYMBOL;Ll;0;L;<font> 03F0;;;;N;;;;;
+1D6DF;MATHEMATICAL BOLD PHI SYMBOL;Ll;0;L;<font> 03D5;;;;N;;;;;
+1D6E0;MATHEMATICAL BOLD RHO SYMBOL;Ll;0;L;<font> 03F1;;;;N;;;;;
+1D6E1;MATHEMATICAL BOLD PI SYMBOL;Ll;0;L;<font> 03D6;;;;N;;;;;
+1D6E2;MATHEMATICAL ITALIC CAPITAL ALPHA;Lu;0;L;<font> 0391;;;;N;;;;;
+1D6E3;MATHEMATICAL ITALIC CAPITAL BETA;Lu;0;L;<font> 0392;;;;N;;;;;
+1D6E4;MATHEMATICAL ITALIC CAPITAL GAMMA;Lu;0;L;<font> 0393;;;;N;;;;;
+1D6E5;MATHEMATICAL ITALIC CAPITAL DELTA;Lu;0;L;<font> 0394;;;;N;;;;;
+1D6E6;MATHEMATICAL ITALIC CAPITAL EPSILON;Lu;0;L;<font> 0395;;;;N;;;;;
+1D6E7;MATHEMATICAL ITALIC CAPITAL ZETA;Lu;0;L;<font> 0396;;;;N;;;;;
+1D6E8;MATHEMATICAL ITALIC CAPITAL ETA;Lu;0;L;<font> 0397;;;;N;;;;;
+1D6E9;MATHEMATICAL ITALIC CAPITAL THETA;Lu;0;L;<font> 0398;;;;N;;;;;
+1D6EA;MATHEMATICAL ITALIC CAPITAL IOTA;Lu;0;L;<font> 0399;;;;N;;;;;
+1D6EB;MATHEMATICAL ITALIC CAPITAL KAPPA;Lu;0;L;<font> 039A;;;;N;;;;;
+1D6EC;MATHEMATICAL ITALIC CAPITAL LAMDA;Lu;0;L;<font> 039B;;;;N;;;;;
+1D6ED;MATHEMATICAL ITALIC CAPITAL MU;Lu;0;L;<font> 039C;;;;N;;;;;
+1D6EE;MATHEMATICAL ITALIC CAPITAL NU;Lu;0;L;<font> 039D;;;;N;;;;;
+1D6EF;MATHEMATICAL ITALIC CAPITAL XI;Lu;0;L;<font> 039E;;;;N;;;;;
+1D6F0;MATHEMATICAL ITALIC CAPITAL OMICRON;Lu;0;L;<font> 039F;;;;N;;;;;
+1D6F1;MATHEMATICAL ITALIC CAPITAL PI;Lu;0;L;<font> 03A0;;;;N;;;;;
+1D6F2;MATHEMATICAL ITALIC CAPITAL RHO;Lu;0;L;<font> 03A1;;;;N;;;;;
+1D6F3;MATHEMATICAL ITALIC CAPITAL THETA SYMBOL;Lu;0;L;<font> 03F4;;;;N;;;;;
+1D6F4;MATHEMATICAL ITALIC CAPITAL SIGMA;Lu;0;L;<font> 03A3;;;;N;;;;;
+1D6F5;MATHEMATICAL ITALIC CAPITAL TAU;Lu;0;L;<font> 03A4;;;;N;;;;;
+1D6F6;MATHEMATICAL ITALIC CAPITAL UPSILON;Lu;0;L;<font> 03A5;;;;N;;;;;
+1D6F7;MATHEMATICAL ITALIC CAPITAL PHI;Lu;0;L;<font> 03A6;;;;N;;;;;
+1D6F8;MATHEMATICAL ITALIC CAPITAL CHI;Lu;0;L;<font> 03A7;;;;N;;;;;
+1D6F9;MATHEMATICAL ITALIC CAPITAL PSI;Lu;0;L;<font> 03A8;;;;N;;;;;
+1D6FA;MATHEMATICAL ITALIC CAPITAL OMEGA;Lu;0;L;<font> 03A9;;;;N;;;;;
+1D6FB;MATHEMATICAL ITALIC NABLA;Sm;0;L;<font> 2207;;;;N;;;;;
+1D6FC;MATHEMATICAL ITALIC SMALL ALPHA;Ll;0;L;<font> 03B1;;;;N;;;;;
+1D6FD;MATHEMATICAL ITALIC SMALL BETA;Ll;0;L;<font> 03B2;;;;N;;;;;
+1D6FE;MATHEMATICAL ITALIC SMALL GAMMA;Ll;0;L;<font> 03B3;;;;N;;;;;
+1D6FF;MATHEMATICAL ITALIC SMALL DELTA;Ll;0;L;<font> 03B4;;;;N;;;;;
+1D700;MATHEMATICAL ITALIC SMALL EPSILON;Ll;0;L;<font> 03B5;;;;N;;;;;
+1D701;MATHEMATICAL ITALIC SMALL ZETA;Ll;0;L;<font> 03B6;;;;N;;;;;
+1D702;MATHEMATICAL ITALIC SMALL ETA;Ll;0;L;<font> 03B7;;;;N;;;;;
+1D703;MATHEMATICAL ITALIC SMALL THETA;Ll;0;L;<font> 03B8;;;;N;;;;;
+1D704;MATHEMATICAL ITALIC SMALL IOTA;Ll;0;L;<font> 03B9;;;;N;;;;;
+1D705;MATHEMATICAL ITALIC SMALL KAPPA;Ll;0;L;<font> 03BA;;;;N;;;;;
+1D706;MATHEMATICAL ITALIC SMALL LAMDA;Ll;0;L;<font> 03BB;;;;N;;;;;
+1D707;MATHEMATICAL ITALIC SMALL MU;Ll;0;L;<font> 03BC;;;;N;;;;;
+1D708;MATHEMATICAL ITALIC SMALL NU;Ll;0;L;<font> 03BD;;;;N;;;;;
+1D709;MATHEMATICAL ITALIC SMALL XI;Ll;0;L;<font> 03BE;;;;N;;;;;
+1D70A;MATHEMATICAL ITALIC SMALL OMICRON;Ll;0;L;<font> 03BF;;;;N;;;;;
+1D70B;MATHEMATICAL ITALIC SMALL PI;Ll;0;L;<font> 03C0;;;;N;;;;;
+1D70C;MATHEMATICAL ITALIC SMALL RHO;Ll;0;L;<font> 03C1;;;;N;;;;;
+1D70D;MATHEMATICAL ITALIC SMALL FINAL SIGMA;Ll;0;L;<font> 03C2;;;;N;;;;;
+1D70E;MATHEMATICAL ITALIC SMALL SIGMA;Ll;0;L;<font> 03C3;;;;N;;;;;
+1D70F;MATHEMATICAL ITALIC SMALL TAU;Ll;0;L;<font> 03C4;;;;N;;;;;
+1D710;MATHEMATICAL ITALIC SMALL UPSILON;Ll;0;L;<font> 03C5;;;;N;;;;;
+1D711;MATHEMATICAL ITALIC SMALL PHI;Ll;0;L;<font> 03C6;;;;N;;;;;
+1D712;MATHEMATICAL ITALIC SMALL CHI;Ll;0;L;<font> 03C7;;;;N;;;;;
+1D713;MATHEMATICAL ITALIC SMALL PSI;Ll;0;L;<font> 03C8;;;;N;;;;;
+1D714;MATHEMATICAL ITALIC SMALL OMEGA;Ll;0;L;<font> 03C9;;;;N;;;;;
+1D715;MATHEMATICAL ITALIC PARTIAL DIFFERENTIAL;Sm;0;ON;<font> 2202;;;;Y;;;;;
+1D716;MATHEMATICAL ITALIC EPSILON SYMBOL;Ll;0;L;<font> 03F5;;;;N;;;;;
+1D717;MATHEMATICAL ITALIC THETA SYMBOL;Ll;0;L;<font> 03D1;;;;N;;;;;
+1D718;MATHEMATICAL ITALIC KAPPA SYMBOL;Ll;0;L;<font> 03F0;;;;N;;;;;
+1D719;MATHEMATICAL ITALIC PHI SYMBOL;Ll;0;L;<font> 03D5;;;;N;;;;;
+1D71A;MATHEMATICAL ITALIC RHO SYMBOL;Ll;0;L;<font> 03F1;;;;N;;;;;
+1D71B;MATHEMATICAL ITALIC PI SYMBOL;Ll;0;L;<font> 03D6;;;;N;;;;;
+1D71C;MATHEMATICAL BOLD ITALIC CAPITAL ALPHA;Lu;0;L;<font> 0391;;;;N;;;;;
+1D71D;MATHEMATICAL BOLD ITALIC CAPITAL BETA;Lu;0;L;<font> 0392;;;;N;;;;;
+1D71E;MATHEMATICAL BOLD ITALIC CAPITAL GAMMA;Lu;0;L;<font> 0393;;;;N;;;;;
+1D71F;MATHEMATICAL BOLD ITALIC CAPITAL DELTA;Lu;0;L;<font> 0394;;;;N;;;;;
+1D720;MATHEMATICAL BOLD ITALIC CAPITAL EPSILON;Lu;0;L;<font> 0395;;;;N;;;;;
+1D721;MATHEMATICAL BOLD ITALIC CAPITAL ZETA;Lu;0;L;<font> 0396;;;;N;;;;;
+1D722;MATHEMATICAL BOLD ITALIC CAPITAL ETA;Lu;0;L;<font> 0397;;;;N;;;;;
+1D723;MATHEMATICAL BOLD ITALIC CAPITAL THETA;Lu;0;L;<font> 0398;;;;N;;;;;
+1D724;MATHEMATICAL BOLD ITALIC CAPITAL IOTA;Lu;0;L;<font> 0399;;;;N;;;;;
+1D725;MATHEMATICAL BOLD ITALIC CAPITAL KAPPA;Lu;0;L;<font> 039A;;;;N;;;;;
+1D726;MATHEMATICAL BOLD ITALIC CAPITAL LAMDA;Lu;0;L;<font> 039B;;;;N;;;;;
+1D727;MATHEMATICAL BOLD ITALIC CAPITAL MU;Lu;0;L;<font> 039C;;;;N;;;;;
+1D728;MATHEMATICAL BOLD ITALIC CAPITAL NU;Lu;0;L;<font> 039D;;;;N;;;;;
+1D729;MATHEMATICAL BOLD ITALIC CAPITAL XI;Lu;0;L;<font> 039E;;;;N;;;;;
+1D72A;MATHEMATICAL BOLD ITALIC CAPITAL OMICRON;Lu;0;L;<font> 039F;;;;N;;;;;
+1D72B;MATHEMATICAL BOLD ITALIC CAPITAL PI;Lu;0;L;<font> 03A0;;;;N;;;;;
+1D72C;MATHEMATICAL BOLD ITALIC CAPITAL RHO;Lu;0;L;<font> 03A1;;;;N;;;;;
+1D72D;MATHEMATICAL BOLD ITALIC CAPITAL THETA SYMBOL;Lu;0;L;<font> 03F4;;;;N;;;;;
+1D72E;MATHEMATICAL BOLD ITALIC CAPITAL SIGMA;Lu;0;L;<font> 03A3;;;;N;;;;;
+1D72F;MATHEMATICAL BOLD ITALIC CAPITAL TAU;Lu;0;L;<font> 03A4;;;;N;;;;;
+1D730;MATHEMATICAL BOLD ITALIC CAPITAL UPSILON;Lu;0;L;<font> 03A5;;;;N;;;;;
+1D731;MATHEMATICAL BOLD ITALIC CAPITAL PHI;Lu;0;L;<font> 03A6;;;;N;;;;;
+1D732;MATHEMATICAL BOLD ITALIC CAPITAL CHI;Lu;0;L;<font> 03A7;;;;N;;;;;
+1D733;MATHEMATICAL BOLD ITALIC CAPITAL PSI;Lu;0;L;<font> 03A8;;;;N;;;;;
+1D734;MATHEMATICAL BOLD ITALIC CAPITAL OMEGA;Lu;0;L;<font> 03A9;;;;N;;;;;
+1D735;MATHEMATICAL BOLD ITALIC NABLA;Sm;0;L;<font> 2207;;;;N;;;;;
+1D736;MATHEMATICAL BOLD ITALIC SMALL ALPHA;Ll;0;L;<font> 03B1;;;;N;;;;;
+1D737;MATHEMATICAL BOLD ITALIC SMALL BETA;Ll;0;L;<font> 03B2;;;;N;;;;;
+1D738;MATHEMATICAL BOLD ITALIC SMALL GAMMA;Ll;0;L;<font> 03B3;;;;N;;;;;
+1D739;MATHEMATICAL BOLD ITALIC SMALL DELTA;Ll;0;L;<font> 03B4;;;;N;;;;;
+1D73A;MATHEMATICAL BOLD ITALIC SMALL EPSILON;Ll;0;L;<font> 03B5;;;;N;;;;;
+1D73B;MATHEMATICAL BOLD ITALIC SMALL ZETA;Ll;0;L;<font> 03B6;;;;N;;;;;
+1D73C;MATHEMATICAL BOLD ITALIC SMALL ETA;Ll;0;L;<font> 03B7;;;;N;;;;;
+1D73D;MATHEMATICAL BOLD ITALIC SMALL THETA;Ll;0;L;<font> 03B8;;;;N;;;;;
+1D73E;MATHEMATICAL BOLD ITALIC SMALL IOTA;Ll;0;L;<font> 03B9;;;;N;;;;;
+1D73F;MATHEMATICAL BOLD ITALIC SMALL KAPPA;Ll;0;L;<font> 03BA;;;;N;;;;;
+1D740;MATHEMATICAL BOLD ITALIC SMALL LAMDA;Ll;0;L;<font> 03BB;;;;N;;;;;
+1D741;MATHEMATICAL BOLD ITALIC SMALL MU;Ll;0;L;<font> 03BC;;;;N;;;;;
+1D742;MATHEMATICAL BOLD ITALIC SMALL NU;Ll;0;L;<font> 03BD;;;;N;;;;;
+1D743;MATHEMATICAL BOLD ITALIC SMALL XI;Ll;0;L;<font> 03BE;;;;N;;;;;
+1D744;MATHEMATICAL BOLD ITALIC SMALL OMICRON;Ll;0;L;<font> 03BF;;;;N;;;;;
+1D745;MATHEMATICAL BOLD ITALIC SMALL PI;Ll;0;L;<font> 03C0;;;;N;;;;;
+1D746;MATHEMATICAL BOLD ITALIC SMALL RHO;Ll;0;L;<font> 03C1;;;;N;;;;;
+1D747;MATHEMATICAL BOLD ITALIC SMALL FINAL SIGMA;Ll;0;L;<font> 03C2;;;;N;;;;;
+1D748;MATHEMATICAL BOLD ITALIC SMALL SIGMA;Ll;0;L;<font> 03C3;;;;N;;;;;
+1D749;MATHEMATICAL BOLD ITALIC SMALL TAU;Ll;0;L;<font> 03C4;;;;N;;;;;
+1D74A;MATHEMATICAL BOLD ITALIC SMALL UPSILON;Ll;0;L;<font> 03C5;;;;N;;;;;
+1D74B;MATHEMATICAL BOLD ITALIC SMALL PHI;Ll;0;L;<font> 03C6;;;;N;;;;;
+1D74C;MATHEMATICAL BOLD ITALIC SMALL CHI;Ll;0;L;<font> 03C7;;;;N;;;;;
+1D74D;MATHEMATICAL BOLD ITALIC SMALL PSI;Ll;0;L;<font> 03C8;;;;N;;;;;
+1D74E;MATHEMATICAL BOLD ITALIC SMALL OMEGA;Ll;0;L;<font> 03C9;;;;N;;;;;
+1D74F;MATHEMATICAL BOLD ITALIC PARTIAL DIFFERENTIAL;Sm;0;ON;<font> 2202;;;;Y;;;;;
+1D750;MATHEMATICAL BOLD ITALIC EPSILON SYMBOL;Ll;0;L;<font> 03F5;;;;N;;;;;
+1D751;MATHEMATICAL BOLD ITALIC THETA SYMBOL;Ll;0;L;<font> 03D1;;;;N;;;;;
+1D752;MATHEMATICAL BOLD ITALIC KAPPA SYMBOL;Ll;0;L;<font> 03F0;;;;N;;;;;
+1D753;MATHEMATICAL BOLD ITALIC PHI SYMBOL;Ll;0;L;<font> 03D5;;;;N;;;;;
+1D754;MATHEMATICAL BOLD ITALIC RHO SYMBOL;Ll;0;L;<font> 03F1;;;;N;;;;;
+1D755;MATHEMATICAL BOLD ITALIC PI SYMBOL;Ll;0;L;<font> 03D6;;;;N;;;;;
+1D756;MATHEMATICAL SANS-SERIF BOLD CAPITAL ALPHA;Lu;0;L;<font> 0391;;;;N;;;;;
+1D757;MATHEMATICAL SANS-SERIF BOLD CAPITAL BETA;Lu;0;L;<font> 0392;;;;N;;;;;
+1D758;MATHEMATICAL SANS-SERIF BOLD CAPITAL GAMMA;Lu;0;L;<font> 0393;;;;N;;;;;
+1D759;MATHEMATICAL SANS-SERIF BOLD CAPITAL DELTA;Lu;0;L;<font> 0394;;;;N;;;;;
+1D75A;MATHEMATICAL SANS-SERIF BOLD CAPITAL EPSILON;Lu;0;L;<font> 0395;;;;N;;;;;
+1D75B;MATHEMATICAL SANS-SERIF BOLD CAPITAL ZETA;Lu;0;L;<font> 0396;;;;N;;;;;
+1D75C;MATHEMATICAL SANS-SERIF BOLD CAPITAL ETA;Lu;0;L;<font> 0397;;;;N;;;;;
+1D75D;MATHEMATICAL SANS-SERIF BOLD CAPITAL THETA;Lu;0;L;<font> 0398;;;;N;;;;;
+1D75E;MATHEMATICAL SANS-SERIF BOLD CAPITAL IOTA;Lu;0;L;<font> 0399;;;;N;;;;;
+1D75F;MATHEMATICAL SANS-SERIF BOLD CAPITAL KAPPA;Lu;0;L;<font> 039A;;;;N;;;;;
+1D760;MATHEMATICAL SANS-SERIF BOLD CAPITAL LAMDA;Lu;0;L;<font> 039B;;;;N;;;;;
+1D761;MATHEMATICAL SANS-SERIF BOLD CAPITAL MU;Lu;0;L;<font> 039C;;;;N;;;;;
+1D762;MATHEMATICAL SANS-SERIF BOLD CAPITAL NU;Lu;0;L;<font> 039D;;;;N;;;;;
+1D763;MATHEMATICAL SANS-SERIF BOLD CAPITAL XI;Lu;0;L;<font> 039E;;;;N;;;;;
+1D764;MATHEMATICAL SANS-SERIF BOLD CAPITAL OMICRON;Lu;0;L;<font> 039F;;;;N;;;;;
+1D765;MATHEMATICAL SANS-SERIF BOLD CAPITAL PI;Lu;0;L;<font> 03A0;;;;N;;;;;
+1D766;MATHEMATICAL SANS-SERIF BOLD CAPITAL RHO;Lu;0;L;<font> 03A1;;;;N;;;;;
+1D767;MATHEMATICAL SANS-SERIF BOLD CAPITAL THETA SYMBOL;Lu;0;L;<font> 03F4;;;;N;;;;;
+1D768;MATHEMATICAL SANS-SERIF BOLD CAPITAL SIGMA;Lu;0;L;<font> 03A3;;;;N;;;;;
+1D769;MATHEMATICAL SANS-SERIF BOLD CAPITAL TAU;Lu;0;L;<font> 03A4;;;;N;;;;;
+1D76A;MATHEMATICAL SANS-SERIF BOLD CAPITAL UPSILON;Lu;0;L;<font> 03A5;;;;N;;;;;
+1D76B;MATHEMATICAL SANS-SERIF BOLD CAPITAL PHI;Lu;0;L;<font> 03A6;;;;N;;;;;
+1D76C;MATHEMATICAL SANS-SERIF BOLD CAPITAL CHI;Lu;0;L;<font> 03A7;;;;N;;;;;
+1D76D;MATHEMATICAL SANS-SERIF BOLD CAPITAL PSI;Lu;0;L;<font> 03A8;;;;N;;;;;
+1D76E;MATHEMATICAL SANS-SERIF BOLD CAPITAL OMEGA;Lu;0;L;<font> 03A9;;;;N;;;;;
+1D76F;MATHEMATICAL SANS-SERIF BOLD NABLA;Sm;0;L;<font> 2207;;;;N;;;;;
+1D770;MATHEMATICAL SANS-SERIF BOLD SMALL ALPHA;Ll;0;L;<font> 03B1;;;;N;;;;;
+1D771;MATHEMATICAL SANS-SERIF BOLD SMALL BETA;Ll;0;L;<font> 03B2;;;;N;;;;;
+1D772;MATHEMATICAL SANS-SERIF BOLD SMALL GAMMA;Ll;0;L;<font> 03B3;;;;N;;;;;
+1D773;MATHEMATICAL SANS-SERIF BOLD SMALL DELTA;Ll;0;L;<font> 03B4;;;;N;;;;;
+1D774;MATHEMATICAL SANS-SERIF BOLD SMALL EPSILON;Ll;0;L;<font> 03B5;;;;N;;;;;
+1D775;MATHEMATICAL SANS-SERIF BOLD SMALL ZETA;Ll;0;L;<font> 03B6;;;;N;;;;;
+1D776;MATHEMATICAL SANS-SERIF BOLD SMALL ETA;Ll;0;L;<font> 03B7;;;;N;;;;;
+1D777;MATHEMATICAL SANS-SERIF BOLD SMALL THETA;Ll;0;L;<font> 03B8;;;;N;;;;;
+1D778;MATHEMATICAL SANS-SERIF BOLD SMALL IOTA;Ll;0;L;<font> 03B9;;;;N;;;;;
+1D779;MATHEMATICAL SANS-SERIF BOLD SMALL KAPPA;Ll;0;L;<font> 03BA;;;;N;;;;;
+1D77A;MATHEMATICAL SANS-SERIF BOLD SMALL LAMDA;Ll;0;L;<font> 03BB;;;;N;;;;;
+1D77B;MATHEMATICAL SANS-SERIF BOLD SMALL MU;Ll;0;L;<font> 03BC;;;;N;;;;;
+1D77C;MATHEMATICAL SANS-SERIF BOLD SMALL NU;Ll;0;L;<font> 03BD;;;;N;;;;;
+1D77D;MATHEMATICAL SANS-SERIF BOLD SMALL XI;Ll;0;L;<font> 03BE;;;;N;;;;;
+1D77E;MATHEMATICAL SANS-SERIF BOLD SMALL OMICRON;Ll;0;L;<font> 03BF;;;;N;;;;;
+1D77F;MATHEMATICAL SANS-SERIF BOLD SMALL PI;Ll;0;L;<font> 03C0;;;;N;;;;;
+1D780;MATHEMATICAL SANS-SERIF BOLD SMALL RHO;Ll;0;L;<font> 03C1;;;;N;;;;;
+1D781;MATHEMATICAL SANS-SERIF BOLD SMALL FINAL SIGMA;Ll;0;L;<font> 03C2;;;;N;;;;;
+1D782;MATHEMATICAL SANS-SERIF BOLD SMALL SIGMA;Ll;0;L;<font> 03C3;;;;N;;;;;
+1D783;MATHEMATICAL SANS-SERIF BOLD SMALL TAU;Ll;0;L;<font> 03C4;;;;N;;;;;
+1D784;MATHEMATICAL SANS-SERIF BOLD SMALL UPSILON;Ll;0;L;<font> 03C5;;;;N;;;;;
+1D785;MATHEMATICAL SANS-SERIF BOLD SMALL PHI;Ll;0;L;<font> 03C6;;;;N;;;;;
+1D786;MATHEMATICAL SANS-SERIF BOLD SMALL CHI;Ll;0;L;<font> 03C7;;;;N;;;;;
+1D787;MATHEMATICAL SANS-SERIF BOLD SMALL PSI;Ll;0;L;<font> 03C8;;;;N;;;;;
+1D788;MATHEMATICAL SANS-SERIF BOLD SMALL OMEGA;Ll;0;L;<font> 03C9;;;;N;;;;;
+1D789;MATHEMATICAL SANS-SERIF BOLD PARTIAL DIFFERENTIAL;Sm;0;ON;<font> 2202;;;;Y;;;;;
+1D78A;MATHEMATICAL SANS-SERIF BOLD EPSILON SYMBOL;Ll;0;L;<font> 03F5;;;;N;;;;;
+1D78B;MATHEMATICAL SANS-SERIF BOLD THETA SYMBOL;Ll;0;L;<font> 03D1;;;;N;;;;;
+1D78C;MATHEMATICAL SANS-SERIF BOLD KAPPA SYMBOL;Ll;0;L;<font> 03F0;;;;N;;;;;
+1D78D;MATHEMATICAL SANS-SERIF BOLD PHI SYMBOL;Ll;0;L;<font> 03D5;;;;N;;;;;
+1D78E;MATHEMATICAL SANS-SERIF BOLD RHO SYMBOL;Ll;0;L;<font> 03F1;;;;N;;;;;
+1D78F;MATHEMATICAL SANS-SERIF BOLD PI SYMBOL;Ll;0;L;<font> 03D6;;;;N;;;;;
+1D790;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL ALPHA;Lu;0;L;<font> 0391;;;;N;;;;;
+1D791;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL BETA;Lu;0;L;<font> 0392;;;;N;;;;;
+1D792;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL GAMMA;Lu;0;L;<font> 0393;;;;N;;;;;
+1D793;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL DELTA;Lu;0;L;<font> 0394;;;;N;;;;;
+1D794;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL EPSILON;Lu;0;L;<font> 0395;;;;N;;;;;
+1D795;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL ZETA;Lu;0;L;<font> 0396;;;;N;;;;;
+1D796;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL ETA;Lu;0;L;<font> 0397;;;;N;;;;;
+1D797;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL THETA;Lu;0;L;<font> 0398;;;;N;;;;;
+1D798;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL IOTA;Lu;0;L;<font> 0399;;;;N;;;;;
+1D799;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL KAPPA;Lu;0;L;<font> 039A;;;;N;;;;;
+1D79A;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL LAMDA;Lu;0;L;<font> 039B;;;;N;;;;;
+1D79B;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL MU;Lu;0;L;<font> 039C;;;;N;;;;;
+1D79C;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL NU;Lu;0;L;<font> 039D;;;;N;;;;;
+1D79D;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL XI;Lu;0;L;<font> 039E;;;;N;;;;;
+1D79E;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL OMICRON;Lu;0;L;<font> 039F;;;;N;;;;;
+1D79F;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL PI;Lu;0;L;<font> 03A0;;;;N;;;;;
+1D7A0;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL RHO;Lu;0;L;<font> 03A1;;;;N;;;;;
+1D7A1;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL THETA SYMBOL;Lu;0;L;<font> 03F4;;;;N;;;;;
+1D7A2;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL SIGMA;Lu;0;L;<font> 03A3;;;;N;;;;;
+1D7A3;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL TAU;Lu;0;L;<font> 03A4;;;;N;;;;;
+1D7A4;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL UPSILON;Lu;0;L;<font> 03A5;;;;N;;;;;
+1D7A5;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL PHI;Lu;0;L;<font> 03A6;;;;N;;;;;
+1D7A6;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL CHI;Lu;0;L;<font> 03A7;;;;N;;;;;
+1D7A7;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL PSI;Lu;0;L;<font> 03A8;;;;N;;;;;
+1D7A8;MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL OMEGA;Lu;0;L;<font> 03A9;;;;N;;;;;
+1D7A9;MATHEMATICAL SANS-SERIF BOLD ITALIC NABLA;Sm;0;L;<font> 2207;;;;N;;;;;
+1D7AA;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL ALPHA;Ll;0;L;<font> 03B1;;;;N;;;;;
+1D7AB;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL BETA;Ll;0;L;<font> 03B2;;;;N;;;;;
+1D7AC;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL GAMMA;Ll;0;L;<font> 03B3;;;;N;;;;;
+1D7AD;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL DELTA;Ll;0;L;<font> 03B4;;;;N;;;;;
+1D7AE;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL EPSILON;Ll;0;L;<font> 03B5;;;;N;;;;;
+1D7AF;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL ZETA;Ll;0;L;<font> 03B6;;;;N;;;;;
+1D7B0;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL ETA;Ll;0;L;<font> 03B7;;;;N;;;;;
+1D7B1;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL THETA;Ll;0;L;<font> 03B8;;;;N;;;;;
+1D7B2;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL IOTA;Ll;0;L;<font> 03B9;;;;N;;;;;
+1D7B3;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL KAPPA;Ll;0;L;<font> 03BA;;;;N;;;;;
+1D7B4;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL LAMDA;Ll;0;L;<font> 03BB;;;;N;;;;;
+1D7B5;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL MU;Ll;0;L;<font> 03BC;;;;N;;;;;
+1D7B6;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL NU;Ll;0;L;<font> 03BD;;;;N;;;;;
+1D7B7;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL XI;Ll;0;L;<font> 03BE;;;;N;;;;;
+1D7B8;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL OMICRON;Ll;0;L;<font> 03BF;;;;N;;;;;
+1D7B9;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL PI;Ll;0;L;<font> 03C0;;;;N;;;;;
+1D7BA;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL RHO;Ll;0;L;<font> 03C1;;;;N;;;;;
+1D7BB;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL FINAL SIGMA;Ll;0;L;<font> 03C2;;;;N;;;;;
+1D7BC;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL SIGMA;Ll;0;L;<font> 03C3;;;;N;;;;;
+1D7BD;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL TAU;Ll;0;L;<font> 03C4;;;;N;;;;;
+1D7BE;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL UPSILON;Ll;0;L;<font> 03C5;;;;N;;;;;
+1D7BF;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL PHI;Ll;0;L;<font> 03C6;;;;N;;;;;
+1D7C0;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL CHI;Ll;0;L;<font> 03C7;;;;N;;;;;
+1D7C1;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL PSI;Ll;0;L;<font> 03C8;;;;N;;;;;
+1D7C2;MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL OMEGA;Ll;0;L;<font> 03C9;;;;N;;;;;
+1D7C3;MATHEMATICAL SANS-SERIF BOLD ITALIC PARTIAL DIFFERENTIAL;Sm;0;ON;<font> 2202;;;;Y;;;;;
+1D7C4;MATHEMATICAL SANS-SERIF BOLD ITALIC EPSILON SYMBOL;Ll;0;L;<font> 03F5;;;;N;;;;;
+1D7C5;MATHEMATICAL SANS-SERIF BOLD ITALIC THETA SYMBOL;Ll;0;L;<font> 03D1;;;;N;;;;;
+1D7C6;MATHEMATICAL SANS-SERIF BOLD ITALIC KAPPA SYMBOL;Ll;0;L;<font> 03F0;;;;N;;;;;
+1D7C7;MATHEMATICAL SANS-SERIF BOLD ITALIC PHI SYMBOL;Ll;0;L;<font> 03D5;;;;N;;;;;
+1D7C8;MATHEMATICAL SANS-SERIF BOLD ITALIC RHO SYMBOL;Ll;0;L;<font> 03F1;;;;N;;;;;
+1D7C9;MATHEMATICAL SANS-SERIF BOLD ITALIC PI SYMBOL;Ll;0;L;<font> 03D6;;;;N;;;;;
+1D7CA;MATHEMATICAL BOLD CAPITAL DIGAMMA;Lu;0;L;<font> 03DC;;;;N;;;;;
+1D7CB;MATHEMATICAL BOLD SMALL DIGAMMA;Ll;0;L;<font> 03DD;;;;N;;;;;
+1D7CE;MATHEMATICAL BOLD DIGIT ZERO;Nd;0;EN;<font> 0030;0;0;0;N;;;;;
+1D7CF;MATHEMATICAL BOLD DIGIT ONE;Nd;0;EN;<font> 0031;1;1;1;N;;;;;
+1D7D0;MATHEMATICAL BOLD DIGIT TWO;Nd;0;EN;<font> 0032;2;2;2;N;;;;;
+1D7D1;MATHEMATICAL BOLD DIGIT THREE;Nd;0;EN;<font> 0033;3;3;3;N;;;;;
+1D7D2;MATHEMATICAL BOLD DIGIT FOUR;Nd;0;EN;<font> 0034;4;4;4;N;;;;;
+1D7D3;MATHEMATICAL BOLD DIGIT FIVE;Nd;0;EN;<font> 0035;5;5;5;N;;;;;
+1D7D4;MATHEMATICAL BOLD DIGIT SIX;Nd;0;EN;<font> 0036;6;6;6;N;;;;;
+1D7D5;MATHEMATICAL BOLD DIGIT SEVEN;Nd;0;EN;<font> 0037;7;7;7;N;;;;;
+1D7D6;MATHEMATICAL BOLD DIGIT EIGHT;Nd;0;EN;<font> 0038;8;8;8;N;;;;;
+1D7D7;MATHEMATICAL BOLD DIGIT NINE;Nd;0;EN;<font> 0039;9;9;9;N;;;;;
+1D7D8;MATHEMATICAL DOUBLE-STRUCK DIGIT ZERO;Nd;0;EN;<font> 0030;0;0;0;N;;;;;
+1D7D9;MATHEMATICAL DOUBLE-STRUCK DIGIT ONE;Nd;0;EN;<font> 0031;1;1;1;N;;;;;
+1D7DA;MATHEMATICAL DOUBLE-STRUCK DIGIT TWO;Nd;0;EN;<font> 0032;2;2;2;N;;;;;
+1D7DB;MATHEMATICAL DOUBLE-STRUCK DIGIT THREE;Nd;0;EN;<font> 0033;3;3;3;N;;;;;
+1D7DC;MATHEMATICAL DOUBLE-STRUCK DIGIT FOUR;Nd;0;EN;<font> 0034;4;4;4;N;;;;;
+1D7DD;MATHEMATICAL DOUBLE-STRUCK DIGIT FIVE;Nd;0;EN;<font> 0035;5;5;5;N;;;;;
+1D7DE;MATHEMATICAL DOUBLE-STRUCK DIGIT SIX;Nd;0;EN;<font> 0036;6;6;6;N;;;;;
+1D7DF;MATHEMATICAL DOUBLE-STRUCK DIGIT SEVEN;Nd;0;EN;<font> 0037;7;7;7;N;;;;;
+1D7E0;MATHEMATICAL DOUBLE-STRUCK DIGIT EIGHT;Nd;0;EN;<font> 0038;8;8;8;N;;;;;
+1D7E1;MATHEMATICAL DOUBLE-STRUCK DIGIT NINE;Nd;0;EN;<font> 0039;9;9;9;N;;;;;
+1D7E2;MATHEMATICAL SANS-SERIF DIGIT ZERO;Nd;0;EN;<font> 0030;0;0;0;N;;;;;
+1D7E3;MATHEMATICAL SANS-SERIF DIGIT ONE;Nd;0;EN;<font> 0031;1;1;1;N;;;;;
+1D7E4;MATHEMATICAL SANS-SERIF DIGIT TWO;Nd;0;EN;<font> 0032;2;2;2;N;;;;;
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+1F046;DOMINO TILE HORIZONTAL-03-00;So;0;ON;;;;;N;;;;;
+1F047;DOMINO TILE HORIZONTAL-03-01;So;0;ON;;;;;N;;;;;
+1F048;DOMINO TILE HORIZONTAL-03-02;So;0;ON;;;;;N;;;;;
+1F049;DOMINO TILE HORIZONTAL-03-03;So;0;ON;;;;;N;;;;;
+1F04A;DOMINO TILE HORIZONTAL-03-04;So;0;ON;;;;;N;;;;;
+1F04B;DOMINO TILE HORIZONTAL-03-05;So;0;ON;;;;;N;;;;;
+1F04C;DOMINO TILE HORIZONTAL-03-06;So;0;ON;;;;;N;;;;;
+1F04D;DOMINO TILE HORIZONTAL-04-00;So;0;ON;;;;;N;;;;;
+1F04E;DOMINO TILE HORIZONTAL-04-01;So;0;ON;;;;;N;;;;;
+1F04F;DOMINO TILE HORIZONTAL-04-02;So;0;ON;;;;;N;;;;;
+1F050;DOMINO TILE HORIZONTAL-04-03;So;0;ON;;;;;N;;;;;
+1F051;DOMINO TILE HORIZONTAL-04-04;So;0;ON;;;;;N;;;;;
+1F052;DOMINO TILE HORIZONTAL-04-05;So;0;ON;;;;;N;;;;;
+1F053;DOMINO TILE HORIZONTAL-04-06;So;0;ON;;;;;N;;;;;
+1F054;DOMINO TILE HORIZONTAL-05-00;So;0;ON;;;;;N;;;;;
+1F055;DOMINO TILE HORIZONTAL-05-01;So;0;ON;;;;;N;;;;;
+1F056;DOMINO TILE HORIZONTAL-05-02;So;0;ON;;;;;N;;;;;
+1F057;DOMINO TILE HORIZONTAL-05-03;So;0;ON;;;;;N;;;;;
+1F058;DOMINO TILE HORIZONTAL-05-04;So;0;ON;;;;;N;;;;;
+1F059;DOMINO TILE HORIZONTAL-05-05;So;0;ON;;;;;N;;;;;
+1F05A;DOMINO TILE HORIZONTAL-05-06;So;0;ON;;;;;N;;;;;
+1F05B;DOMINO TILE HORIZONTAL-06-00;So;0;ON;;;;;N;;;;;
+1F05C;DOMINO TILE HORIZONTAL-06-01;So;0;ON;;;;;N;;;;;
+1F05D;DOMINO TILE HORIZONTAL-06-02;So;0;ON;;;;;N;;;;;
+1F05E;DOMINO TILE HORIZONTAL-06-03;So;0;ON;;;;;N;;;;;
+1F05F;DOMINO TILE HORIZONTAL-06-04;So;0;ON;;;;;N;;;;;
+1F060;DOMINO TILE HORIZONTAL-06-05;So;0;ON;;;;;N;;;;;
+1F061;DOMINO TILE HORIZONTAL-06-06;So;0;ON;;;;;N;;;;;
+1F062;DOMINO TILE VERTICAL BACK;So;0;ON;;;;;N;;;;;
+1F063;DOMINO TILE VERTICAL-00-00;So;0;ON;;;;;N;;;;;
+1F064;DOMINO TILE VERTICAL-00-01;So;0;ON;;;;;N;;;;;
+1F065;DOMINO TILE VERTICAL-00-02;So;0;ON;;;;;N;;;;;
+1F066;DOMINO TILE VERTICAL-00-03;So;0;ON;;;;;N;;;;;
+1F067;DOMINO TILE VERTICAL-00-04;So;0;ON;;;;;N;;;;;
+1F068;DOMINO TILE VERTICAL-00-05;So;0;ON;;;;;N;;;;;
+1F069;DOMINO TILE VERTICAL-00-06;So;0;ON;;;;;N;;;;;
+1F06A;DOMINO TILE VERTICAL-01-00;So;0;ON;;;;;N;;;;;
+1F06B;DOMINO TILE VERTICAL-01-01;So;0;ON;;;;;N;;;;;
+1F06C;DOMINO TILE VERTICAL-01-02;So;0;ON;;;;;N;;;;;
+1F06D;DOMINO TILE VERTICAL-01-03;So;0;ON;;;;;N;;;;;
+1F06E;DOMINO TILE VERTICAL-01-04;So;0;ON;;;;;N;;;;;
+1F06F;DOMINO TILE VERTICAL-01-05;So;0;ON;;;;;N;;;;;
+1F070;DOMINO TILE VERTICAL-01-06;So;0;ON;;;;;N;;;;;
+1F071;DOMINO TILE VERTICAL-02-00;So;0;ON;;;;;N;;;;;
+1F072;DOMINO TILE VERTICAL-02-01;So;0;ON;;;;;N;;;;;
+1F073;DOMINO TILE VERTICAL-02-02;So;0;ON;;;;;N;;;;;
+1F074;DOMINO TILE VERTICAL-02-03;So;0;ON;;;;;N;;;;;
+1F075;DOMINO TILE VERTICAL-02-04;So;0;ON;;;;;N;;;;;
+1F076;DOMINO TILE VERTICAL-02-05;So;0;ON;;;;;N;;;;;
+1F077;DOMINO TILE VERTICAL-02-06;So;0;ON;;;;;N;;;;;
+1F078;DOMINO TILE VERTICAL-03-00;So;0;ON;;;;;N;;;;;
+1F079;DOMINO TILE VERTICAL-03-01;So;0;ON;;;;;N;;;;;
+1F07A;DOMINO TILE VERTICAL-03-02;So;0;ON;;;;;N;;;;;
+1F07B;DOMINO TILE VERTICAL-03-03;So;0;ON;;;;;N;;;;;
+1F07C;DOMINO TILE VERTICAL-03-04;So;0;ON;;;;;N;;;;;
+1F07D;DOMINO TILE VERTICAL-03-05;So;0;ON;;;;;N;;;;;
+1F07E;DOMINO TILE VERTICAL-03-06;So;0;ON;;;;;N;;;;;
+1F07F;DOMINO TILE VERTICAL-04-00;So;0;ON;;;;;N;;;;;
+1F080;DOMINO TILE VERTICAL-04-01;So;0;ON;;;;;N;;;;;
+1F081;DOMINO TILE VERTICAL-04-02;So;0;ON;;;;;N;;;;;
+1F082;DOMINO TILE VERTICAL-04-03;So;0;ON;;;;;N;;;;;
+1F083;DOMINO TILE VERTICAL-04-04;So;0;ON;;;;;N;;;;;
+1F084;DOMINO TILE VERTICAL-04-05;So;0;ON;;;;;N;;;;;
+1F085;DOMINO TILE VERTICAL-04-06;So;0;ON;;;;;N;;;;;
+1F086;DOMINO TILE VERTICAL-05-00;So;0;ON;;;;;N;;;;;
+1F087;DOMINO TILE VERTICAL-05-01;So;0;ON;;;;;N;;;;;
+1F088;DOMINO TILE VERTICAL-05-02;So;0;ON;;;;;N;;;;;
+1F089;DOMINO TILE VERTICAL-05-03;So;0;ON;;;;;N;;;;;
+1F08A;DOMINO TILE VERTICAL-05-04;So;0;ON;;;;;N;;;;;
+1F08B;DOMINO TILE VERTICAL-05-05;So;0;ON;;;;;N;;;;;
+1F08C;DOMINO TILE VERTICAL-05-06;So;0;ON;;;;;N;;;;;
+1F08D;DOMINO TILE VERTICAL-06-00;So;0;ON;;;;;N;;;;;
+1F08E;DOMINO TILE VERTICAL-06-01;So;0;ON;;;;;N;;;;;
+1F08F;DOMINO TILE VERTICAL-06-02;So;0;ON;;;;;N;;;;;
+1F090;DOMINO TILE VERTICAL-06-03;So;0;ON;;;;;N;;;;;
+1F091;DOMINO TILE VERTICAL-06-04;So;0;ON;;;;;N;;;;;
+1F092;DOMINO TILE VERTICAL-06-05;So;0;ON;;;;;N;;;;;
+1F093;DOMINO TILE VERTICAL-06-06;So;0;ON;;;;;N;;;;;
+1F0A0;PLAYING CARD BACK;So;0;ON;;;;;N;;;;;
+1F0A1;PLAYING CARD ACE OF SPADES;So;0;ON;;;;;N;;;;;
+1F0A2;PLAYING CARD TWO OF SPADES;So;0;ON;;;;;N;;;;;
+1F0A3;PLAYING CARD THREE OF SPADES;So;0;ON;;;;;N;;;;;
+1F0A4;PLAYING CARD FOUR OF SPADES;So;0;ON;;;;;N;;;;;
+1F0A5;PLAYING CARD FIVE OF SPADES;So;0;ON;;;;;N;;;;;
+1F0A6;PLAYING CARD SIX OF SPADES;So;0;ON;;;;;N;;;;;
+1F0A7;PLAYING CARD SEVEN OF SPADES;So;0;ON;;;;;N;;;;;
+1F0A8;PLAYING CARD EIGHT OF SPADES;So;0;ON;;;;;N;;;;;
+1F0A9;PLAYING CARD NINE OF SPADES;So;0;ON;;;;;N;;;;;
+1F0AA;PLAYING CARD TEN OF SPADES;So;0;ON;;;;;N;;;;;
+1F0AB;PLAYING CARD JACK OF SPADES;So;0;ON;;;;;N;;;;;
+1F0AC;PLAYING CARD KNIGHT OF SPADES;So;0;ON;;;;;N;;;;;
+1F0AD;PLAYING CARD QUEEN OF SPADES;So;0;ON;;;;;N;;;;;
+1F0AE;PLAYING CARD KING OF SPADES;So;0;ON;;;;;N;;;;;
+1F0B1;PLAYING CARD ACE OF HEARTS;So;0;ON;;;;;N;;;;;
+1F0B2;PLAYING CARD TWO OF HEARTS;So;0;ON;;;;;N;;;;;
+1F0B3;PLAYING CARD THREE OF HEARTS;So;0;ON;;;;;N;;;;;
+1F0B4;PLAYING CARD FOUR OF HEARTS;So;0;ON;;;;;N;;;;;
+1F0B5;PLAYING CARD FIVE OF HEARTS;So;0;ON;;;;;N;;;;;
+1F0B6;PLAYING CARD SIX OF HEARTS;So;0;ON;;;;;N;;;;;
+1F0B7;PLAYING CARD SEVEN OF HEARTS;So;0;ON;;;;;N;;;;;
+1F0B8;PLAYING CARD EIGHT OF HEARTS;So;0;ON;;;;;N;;;;;
+1F0B9;PLAYING CARD NINE OF HEARTS;So;0;ON;;;;;N;;;;;
+1F0BA;PLAYING CARD TEN OF HEARTS;So;0;ON;;;;;N;;;;;
+1F0BB;PLAYING CARD JACK OF HEARTS;So;0;ON;;;;;N;;;;;
+1F0BC;PLAYING CARD KNIGHT OF HEARTS;So;0;ON;;;;;N;;;;;
+1F0BD;PLAYING CARD QUEEN OF HEARTS;So;0;ON;;;;;N;;;;;
+1F0BE;PLAYING CARD KING OF HEARTS;So;0;ON;;;;;N;;;;;
+1F0C1;PLAYING CARD ACE OF DIAMONDS;So;0;ON;;;;;N;;;;;
+1F0C2;PLAYING CARD TWO OF DIAMONDS;So;0;ON;;;;;N;;;;;
+1F0C3;PLAYING CARD THREE OF DIAMONDS;So;0;ON;;;;;N;;;;;
+1F0C4;PLAYING CARD FOUR OF DIAMONDS;So;0;ON;;;;;N;;;;;
+1F0C5;PLAYING CARD FIVE OF DIAMONDS;So;0;ON;;;;;N;;;;;
+1F0C6;PLAYING CARD SIX OF DIAMONDS;So;0;ON;;;;;N;;;;;
+1F0C7;PLAYING CARD SEVEN OF DIAMONDS;So;0;ON;;;;;N;;;;;
+1F0C8;PLAYING CARD EIGHT OF DIAMONDS;So;0;ON;;;;;N;;;;;
+1F0C9;PLAYING CARD NINE OF DIAMONDS;So;0;ON;;;;;N;;;;;
+1F0CA;PLAYING CARD TEN OF DIAMONDS;So;0;ON;;;;;N;;;;;
+1F0CB;PLAYING CARD JACK OF DIAMONDS;So;0;ON;;;;;N;;;;;
+1F0CC;PLAYING CARD KNIGHT OF DIAMONDS;So;0;ON;;;;;N;;;;;
+1F0CD;PLAYING CARD QUEEN OF DIAMONDS;So;0;ON;;;;;N;;;;;
+1F0CE;PLAYING CARD KING OF DIAMONDS;So;0;ON;;;;;N;;;;;
+1F0CF;PLAYING CARD BLACK JOKER;So;0;ON;;;;;N;;;;;
+1F0D1;PLAYING CARD ACE OF CLUBS;So;0;ON;;;;;N;;;;;
+1F0D2;PLAYING CARD TWO OF CLUBS;So;0;ON;;;;;N;;;;;
+1F0D3;PLAYING CARD THREE OF CLUBS;So;0;ON;;;;;N;;;;;
+1F0D4;PLAYING CARD FOUR OF CLUBS;So;0;ON;;;;;N;;;;;
+1F0D5;PLAYING CARD FIVE OF CLUBS;So;0;ON;;;;;N;;;;;
+1F0D6;PLAYING CARD SIX OF CLUBS;So;0;ON;;;;;N;;;;;
+1F0D7;PLAYING CARD SEVEN OF CLUBS;So;0;ON;;;;;N;;;;;
+1F0D8;PLAYING CARD EIGHT OF CLUBS;So;0;ON;;;;;N;;;;;
+1F0D9;PLAYING CARD NINE OF CLUBS;So;0;ON;;;;;N;;;;;
+1F0DA;PLAYING CARD TEN OF CLUBS;So;0;ON;;;;;N;;;;;
+1F0DB;PLAYING CARD JACK OF CLUBS;So;0;ON;;;;;N;;;;;
+1F0DC;PLAYING CARD KNIGHT OF CLUBS;So;0;ON;;;;;N;;;;;
+1F0DD;PLAYING CARD QUEEN OF CLUBS;So;0;ON;;;;;N;;;;;
+1F0DE;PLAYING CARD KING OF CLUBS;So;0;ON;;;;;N;;;;;
+1F0DF;PLAYING CARD WHITE JOKER;So;0;ON;;;;;N;;;;;
+1F100;DIGIT ZERO FULL STOP;No;0;EN;<compat> 0030 002E;;0;0;N;;;;;
+1F101;DIGIT ZERO COMMA;No;0;EN;<compat> 0030 002C;;0;0;N;;;;;
+1F102;DIGIT ONE COMMA;No;0;EN;<compat> 0031 002C;;1;1;N;;;;;
+1F103;DIGIT TWO COMMA;No;0;EN;<compat> 0032 002C;;2;2;N;;;;;
+1F104;DIGIT THREE COMMA;No;0;EN;<compat> 0033 002C;;3;3;N;;;;;
+1F105;DIGIT FOUR COMMA;No;0;EN;<compat> 0034 002C;;4;4;N;;;;;
+1F106;DIGIT FIVE COMMA;No;0;EN;<compat> 0035 002C;;5;5;N;;;;;
+1F107;DIGIT SIX COMMA;No;0;EN;<compat> 0036 002C;;6;6;N;;;;;
+1F108;DIGIT SEVEN COMMA;No;0;EN;<compat> 0037 002C;;7;7;N;;;;;
+1F109;DIGIT EIGHT COMMA;No;0;EN;<compat> 0038 002C;;8;8;N;;;;;
+1F10A;DIGIT NINE COMMA;No;0;EN;<compat> 0039 002C;;9;9;N;;;;;
+1F110;PARENTHESIZED LATIN CAPITAL LETTER A;So;0;L;<compat> 0028 0041 0029;;;;N;;;;;
+1F111;PARENTHESIZED LATIN CAPITAL LETTER B;So;0;L;<compat> 0028 0042 0029;;;;N;;;;;
+1F112;PARENTHESIZED LATIN CAPITAL LETTER C;So;0;L;<compat> 0028 0043 0029;;;;N;;;;;
+1F113;PARENTHESIZED LATIN CAPITAL LETTER D;So;0;L;<compat> 0028 0044 0029;;;;N;;;;;
+1F114;PARENTHESIZED LATIN CAPITAL LETTER E;So;0;L;<compat> 0028 0045 0029;;;;N;;;;;
+1F115;PARENTHESIZED LATIN CAPITAL LETTER F;So;0;L;<compat> 0028 0046 0029;;;;N;;;;;
+1F116;PARENTHESIZED LATIN CAPITAL LETTER G;So;0;L;<compat> 0028 0047 0029;;;;N;;;;;
+1F117;PARENTHESIZED LATIN CAPITAL LETTER H;So;0;L;<compat> 0028 0048 0029;;;;N;;;;;
+1F118;PARENTHESIZED LATIN CAPITAL LETTER I;So;0;L;<compat> 0028 0049 0029;;;;N;;;;;
+1F119;PARENTHESIZED LATIN CAPITAL LETTER J;So;0;L;<compat> 0028 004A 0029;;;;N;;;;;
+1F11A;PARENTHESIZED LATIN CAPITAL LETTER K;So;0;L;<compat> 0028 004B 0029;;;;N;;;;;
+1F11B;PARENTHESIZED LATIN CAPITAL LETTER L;So;0;L;<compat> 0028 004C 0029;;;;N;;;;;
+1F11C;PARENTHESIZED LATIN CAPITAL LETTER M;So;0;L;<compat> 0028 004D 0029;;;;N;;;;;
+1F11D;PARENTHESIZED LATIN CAPITAL LETTER N;So;0;L;<compat> 0028 004E 0029;;;;N;;;;;
+1F11E;PARENTHESIZED LATIN CAPITAL LETTER O;So;0;L;<compat> 0028 004F 0029;;;;N;;;;;
+1F11F;PARENTHESIZED LATIN CAPITAL LETTER P;So;0;L;<compat> 0028 0050 0029;;;;N;;;;;
+1F120;PARENTHESIZED LATIN CAPITAL LETTER Q;So;0;L;<compat> 0028 0051 0029;;;;N;;;;;
+1F121;PARENTHESIZED LATIN CAPITAL LETTER R;So;0;L;<compat> 0028 0052 0029;;;;N;;;;;
+1F122;PARENTHESIZED LATIN CAPITAL LETTER S;So;0;L;<compat> 0028 0053 0029;;;;N;;;;;
+1F123;PARENTHESIZED LATIN CAPITAL LETTER T;So;0;L;<compat> 0028 0054 0029;;;;N;;;;;
+1F124;PARENTHESIZED LATIN CAPITAL LETTER U;So;0;L;<compat> 0028 0055 0029;;;;N;;;;;
+1F125;PARENTHESIZED LATIN CAPITAL LETTER V;So;0;L;<compat> 0028 0056 0029;;;;N;;;;;
+1F126;PARENTHESIZED LATIN CAPITAL LETTER W;So;0;L;<compat> 0028 0057 0029;;;;N;;;;;
+1F127;PARENTHESIZED LATIN CAPITAL LETTER X;So;0;L;<compat> 0028 0058 0029;;;;N;;;;;
+1F128;PARENTHESIZED LATIN CAPITAL LETTER Y;So;0;L;<compat> 0028 0059 0029;;;;N;;;;;
+1F129;PARENTHESIZED LATIN CAPITAL LETTER Z;So;0;L;<compat> 0028 005A 0029;;;;N;;;;;
+1F12A;TORTOISE SHELL BRACKETED LATIN CAPITAL LETTER S;So;0;L;<compat> 3014 0053 3015;;;;N;;;;;
+1F12B;CIRCLED ITALIC LATIN CAPITAL LETTER C;So;0;L;<circle> 0043;;;;N;;;;;
+1F12C;CIRCLED ITALIC LATIN CAPITAL LETTER R;So;0;L;<circle> 0052;;;;N;;;;;
+1F12D;CIRCLED CD;So;0;L;<circle> 0043 0044;;;;N;;;;;
+1F12E;CIRCLED WZ;So;0;L;<circle> 0057 005A;;;;N;;;;;
+1F130;SQUARED LATIN CAPITAL LETTER A;So;0;L;<square> 0041;;;;N;;;;;
+1F131;SQUARED LATIN CAPITAL LETTER B;So;0;L;<square> 0042;;;;N;;;;;
+1F132;SQUARED LATIN CAPITAL LETTER C;So;0;L;<square> 0043;;;;N;;;;;
+1F133;SQUARED LATIN CAPITAL LETTER D;So;0;L;<square> 0044;;;;N;;;;;
+1F134;SQUARED LATIN CAPITAL LETTER E;So;0;L;<square> 0045;;;;N;;;;;
+1F135;SQUARED LATIN CAPITAL LETTER F;So;0;L;<square> 0046;;;;N;;;;;
+1F136;SQUARED LATIN CAPITAL LETTER G;So;0;L;<square> 0047;;;;N;;;;;
+1F137;SQUARED LATIN CAPITAL LETTER H;So;0;L;<square> 0048;;;;N;;;;;
+1F138;SQUARED LATIN CAPITAL LETTER I;So;0;L;<square> 0049;;;;N;;;;;
+1F139;SQUARED LATIN CAPITAL LETTER J;So;0;L;<square> 004A;;;;N;;;;;
+1F13A;SQUARED LATIN CAPITAL LETTER K;So;0;L;<square> 004B;;;;N;;;;;
+1F13B;SQUARED LATIN CAPITAL LETTER L;So;0;L;<square> 004C;;;;N;;;;;
+1F13C;SQUARED LATIN CAPITAL LETTER M;So;0;L;<square> 004D;;;;N;;;;;
+1F13D;SQUARED LATIN CAPITAL LETTER N;So;0;L;<square> 004E;;;;N;;;;;
+1F13E;SQUARED LATIN CAPITAL LETTER O;So;0;L;<square> 004F;;;;N;;;;;
+1F13F;SQUARED LATIN CAPITAL LETTER P;So;0;L;<square> 0050;;;;N;;;;;
+1F140;SQUARED LATIN CAPITAL LETTER Q;So;0;L;<square> 0051;;;;N;;;;;
+1F141;SQUARED LATIN CAPITAL LETTER R;So;0;L;<square> 0052;;;;N;;;;;
+1F142;SQUARED LATIN CAPITAL LETTER S;So;0;L;<square> 0053;;;;N;;;;;
+1F143;SQUARED LATIN CAPITAL LETTER T;So;0;L;<square> 0054;;;;N;;;;;
+1F144;SQUARED LATIN CAPITAL LETTER U;So;0;L;<square> 0055;;;;N;;;;;
+1F145;SQUARED LATIN CAPITAL LETTER V;So;0;L;<square> 0056;;;;N;;;;;
+1F146;SQUARED LATIN CAPITAL LETTER W;So;0;L;<square> 0057;;;;N;;;;;
+1F147;SQUARED LATIN CAPITAL LETTER X;So;0;L;<square> 0058;;;;N;;;;;
+1F148;SQUARED LATIN CAPITAL LETTER Y;So;0;L;<square> 0059;;;;N;;;;;
+1F149;SQUARED LATIN CAPITAL LETTER Z;So;0;L;<square> 005A;;;;N;;;;;
+1F14A;SQUARED HV;So;0;L;<square> 0048 0056;;;;N;;;;;
+1F14B;SQUARED MV;So;0;L;<square> 004D 0056;;;;N;;;;;
+1F14C;SQUARED SD;So;0;L;<square> 0053 0044;;;;N;;;;;
+1F14D;SQUARED SS;So;0;L;<square> 0053 0053;;;;N;;;;;
+1F14E;SQUARED PPV;So;0;L;<square> 0050 0050 0056;;;;N;;;;;
+1F14F;SQUARED WC;So;0;L;<square> 0057 0043;;;;N;;;;;
+1F150;NEGATIVE CIRCLED LATIN CAPITAL LETTER A;So;0;L;;;;;N;;;;;
+1F151;NEGATIVE CIRCLED LATIN CAPITAL LETTER B;So;0;L;;;;;N;;;;;
+1F152;NEGATIVE CIRCLED LATIN CAPITAL LETTER C;So;0;L;;;;;N;;;;;
+1F153;NEGATIVE CIRCLED LATIN CAPITAL LETTER D;So;0;L;;;;;N;;;;;
+1F154;NEGATIVE CIRCLED LATIN CAPITAL LETTER E;So;0;L;;;;;N;;;;;
+1F155;NEGATIVE CIRCLED LATIN CAPITAL LETTER F;So;0;L;;;;;N;;;;;
+1F156;NEGATIVE CIRCLED LATIN CAPITAL LETTER G;So;0;L;;;;;N;;;;;
+1F157;NEGATIVE CIRCLED LATIN CAPITAL LETTER H;So;0;L;;;;;N;;;;;
+1F158;NEGATIVE CIRCLED LATIN CAPITAL LETTER I;So;0;L;;;;;N;;;;;
+1F159;NEGATIVE CIRCLED LATIN CAPITAL LETTER J;So;0;L;;;;;N;;;;;
+1F15A;NEGATIVE CIRCLED LATIN CAPITAL LETTER K;So;0;L;;;;;N;;;;;
+1F15B;NEGATIVE CIRCLED LATIN CAPITAL LETTER L;So;0;L;;;;;N;;;;;
+1F15C;NEGATIVE CIRCLED LATIN CAPITAL LETTER M;So;0;L;;;;;N;;;;;
+1F15D;NEGATIVE CIRCLED LATIN CAPITAL LETTER N;So;0;L;;;;;N;;;;;
+1F15E;NEGATIVE CIRCLED LATIN CAPITAL LETTER O;So;0;L;;;;;N;;;;;
+1F15F;NEGATIVE CIRCLED LATIN CAPITAL LETTER P;So;0;L;;;;;N;;;;;
+1F160;NEGATIVE CIRCLED LATIN CAPITAL LETTER Q;So;0;L;;;;;N;;;;;
+1F161;NEGATIVE CIRCLED LATIN CAPITAL LETTER R;So;0;L;;;;;N;;;;;
+1F162;NEGATIVE CIRCLED LATIN CAPITAL LETTER S;So;0;L;;;;;N;;;;;
+1F163;NEGATIVE CIRCLED LATIN CAPITAL LETTER T;So;0;L;;;;;N;;;;;
+1F164;NEGATIVE CIRCLED LATIN CAPITAL LETTER U;So;0;L;;;;;N;;;;;
+1F165;NEGATIVE CIRCLED LATIN CAPITAL LETTER V;So;0;L;;;;;N;;;;;
+1F166;NEGATIVE CIRCLED LATIN CAPITAL LETTER W;So;0;L;;;;;N;;;;;
+1F167;NEGATIVE CIRCLED LATIN CAPITAL LETTER X;So;0;L;;;;;N;;;;;
+1F168;NEGATIVE CIRCLED LATIN CAPITAL LETTER Y;So;0;L;;;;;N;;;;;
+1F169;NEGATIVE CIRCLED LATIN CAPITAL LETTER Z;So;0;L;;;;;N;;;;;
+1F16A;RAISED MC SIGN;So;0;ON;<super> 004D 0043;;;;N;;;;;
+1F16B;RAISED MD SIGN;So;0;ON;<super> 004D 0044;;;;N;;;;;
+1F170;NEGATIVE SQUARED LATIN CAPITAL LETTER A;So;0;L;;;;;N;;;;;
+1F171;NEGATIVE SQUARED LATIN CAPITAL LETTER B;So;0;L;;;;;N;;;;;
+1F172;NEGATIVE SQUARED LATIN CAPITAL LETTER C;So;0;L;;;;;N;;;;;
+1F173;NEGATIVE SQUARED LATIN CAPITAL LETTER D;So;0;L;;;;;N;;;;;
+1F174;NEGATIVE SQUARED LATIN CAPITAL LETTER E;So;0;L;;;;;N;;;;;
+1F175;NEGATIVE SQUARED LATIN CAPITAL LETTER F;So;0;L;;;;;N;;;;;
+1F176;NEGATIVE SQUARED LATIN CAPITAL LETTER G;So;0;L;;;;;N;;;;;
+1F177;NEGATIVE SQUARED LATIN CAPITAL LETTER H;So;0;L;;;;;N;;;;;
+1F178;NEGATIVE SQUARED LATIN CAPITAL LETTER I;So;0;L;;;;;N;;;;;
+1F179;NEGATIVE SQUARED LATIN CAPITAL LETTER J;So;0;L;;;;;N;;;;;
+1F17A;NEGATIVE SQUARED LATIN CAPITAL LETTER K;So;0;L;;;;;N;;;;;
+1F17B;NEGATIVE SQUARED LATIN CAPITAL LETTER L;So;0;L;;;;;N;;;;;
+1F17C;NEGATIVE SQUARED LATIN CAPITAL LETTER M;So;0;L;;;;;N;;;;;
+1F17D;NEGATIVE SQUARED LATIN CAPITAL LETTER N;So;0;L;;;;;N;;;;;
+1F17E;NEGATIVE SQUARED LATIN CAPITAL LETTER O;So;0;L;;;;;N;;;;;
+1F17F;NEGATIVE SQUARED LATIN CAPITAL LETTER P;So;0;L;;;;;N;;;;;
+1F180;NEGATIVE SQUARED LATIN CAPITAL LETTER Q;So;0;L;;;;;N;;;;;
+1F181;NEGATIVE SQUARED LATIN CAPITAL LETTER R;So;0;L;;;;;N;;;;;
+1F182;NEGATIVE SQUARED LATIN CAPITAL LETTER S;So;0;L;;;;;N;;;;;
+1F183;NEGATIVE SQUARED LATIN CAPITAL LETTER T;So;0;L;;;;;N;;;;;
+1F184;NEGATIVE SQUARED LATIN CAPITAL LETTER U;So;0;L;;;;;N;;;;;
+1F185;NEGATIVE SQUARED LATIN CAPITAL LETTER V;So;0;L;;;;;N;;;;;
+1F186;NEGATIVE SQUARED LATIN CAPITAL LETTER W;So;0;L;;;;;N;;;;;
+1F187;NEGATIVE SQUARED LATIN CAPITAL LETTER X;So;0;L;;;;;N;;;;;
+1F188;NEGATIVE SQUARED LATIN CAPITAL LETTER Y;So;0;L;;;;;N;;;;;
+1F189;NEGATIVE SQUARED LATIN CAPITAL LETTER Z;So;0;L;;;;;N;;;;;
+1F18A;CROSSED NEGATIVE SQUARED LATIN CAPITAL LETTER P;So;0;L;;;;;N;;;;;
+1F18B;NEGATIVE SQUARED IC;So;0;L;;;;;N;;;;;
+1F18C;NEGATIVE SQUARED PA;So;0;L;;;;;N;;;;;
+1F18D;NEGATIVE SQUARED SA;So;0;L;;;;;N;;;;;
+1F18E;NEGATIVE SQUARED AB;So;0;L;;;;;N;;;;;
+1F18F;NEGATIVE SQUARED WC;So;0;L;;;;;N;;;;;
+1F190;SQUARE DJ;So;0;L;<square> 0044 004A;;;;N;;;;;
+1F191;SQUARED CL;So;0;L;;;;;N;;;;;
+1F192;SQUARED COOL;So;0;L;;;;;N;;;;;
+1F193;SQUARED FREE;So;0;L;;;;;N;;;;;
+1F194;SQUARED ID;So;0;L;;;;;N;;;;;
+1F195;SQUARED NEW;So;0;L;;;;;N;;;;;
+1F196;SQUARED NG;So;0;L;;;;;N;;;;;
+1F197;SQUARED OK;So;0;L;;;;;N;;;;;
+1F198;SQUARED SOS;So;0;L;;;;;N;;;;;
+1F199;SQUARED UP WITH EXCLAMATION MARK;So;0;L;;;;;N;;;;;
+1F19A;SQUARED VS;So;0;L;;;;;N;;;;;
+1F1E6;REGIONAL INDICATOR SYMBOL LETTER A;So;0;L;;;;;N;;;;;
+1F1E7;REGIONAL INDICATOR SYMBOL LETTER B;So;0;L;;;;;N;;;;;
+1F1E8;REGIONAL INDICATOR SYMBOL LETTER C;So;0;L;;;;;N;;;;;
+1F1E9;REGIONAL INDICATOR SYMBOL LETTER D;So;0;L;;;;;N;;;;;
+1F1EA;REGIONAL INDICATOR SYMBOL LETTER E;So;0;L;;;;;N;;;;;
+1F1EB;REGIONAL INDICATOR SYMBOL LETTER F;So;0;L;;;;;N;;;;;
+1F1EC;REGIONAL INDICATOR SYMBOL LETTER G;So;0;L;;;;;N;;;;;
+1F1ED;REGIONAL INDICATOR SYMBOL LETTER H;So;0;L;;;;;N;;;;;
+1F1EE;REGIONAL INDICATOR SYMBOL LETTER I;So;0;L;;;;;N;;;;;
+1F1EF;REGIONAL INDICATOR SYMBOL LETTER J;So;0;L;;;;;N;;;;;
+1F1F0;REGIONAL INDICATOR SYMBOL LETTER K;So;0;L;;;;;N;;;;;
+1F1F1;REGIONAL INDICATOR SYMBOL LETTER L;So;0;L;;;;;N;;;;;
+1F1F2;REGIONAL INDICATOR SYMBOL LETTER M;So;0;L;;;;;N;;;;;
+1F1F3;REGIONAL INDICATOR SYMBOL LETTER N;So;0;L;;;;;N;;;;;
+1F1F4;REGIONAL INDICATOR SYMBOL LETTER O;So;0;L;;;;;N;;;;;
+1F1F5;REGIONAL INDICATOR SYMBOL LETTER P;So;0;L;;;;;N;;;;;
+1F1F6;REGIONAL INDICATOR SYMBOL LETTER Q;So;0;L;;;;;N;;;;;
+1F1F7;REGIONAL INDICATOR SYMBOL LETTER R;So;0;L;;;;;N;;;;;
+1F1F8;REGIONAL INDICATOR SYMBOL LETTER S;So;0;L;;;;;N;;;;;
+1F1F9;REGIONAL INDICATOR SYMBOL LETTER T;So;0;L;;;;;N;;;;;
+1F1FA;REGIONAL INDICATOR SYMBOL LETTER U;So;0;L;;;;;N;;;;;
+1F1FB;REGIONAL INDICATOR SYMBOL LETTER V;So;0;L;;;;;N;;;;;
+1F1FC;REGIONAL INDICATOR SYMBOL LETTER W;So;0;L;;;;;N;;;;;
+1F1FD;REGIONAL INDICATOR SYMBOL LETTER X;So;0;L;;;;;N;;;;;
+1F1FE;REGIONAL INDICATOR SYMBOL LETTER Y;So;0;L;;;;;N;;;;;
+1F1FF;REGIONAL INDICATOR SYMBOL LETTER Z;So;0;L;;;;;N;;;;;
+1F200;SQUARE HIRAGANA HOKA;So;0;L;<square> 307B 304B;;;;N;;;;;
+1F201;SQUARED KATAKANA KOKO;So;0;L;<square> 30B3 30B3;;;;N;;;;;
+1F202;SQUARED KATAKANA SA;So;0;L;<square> 30B5;;;;N;;;;;
+1F210;SQUARED CJK UNIFIED IDEOGRAPH-624B;So;0;L;<square> 624B;;;;N;;;;;
+1F211;SQUARED CJK UNIFIED IDEOGRAPH-5B57;So;0;L;<square> 5B57;;;;N;;;;;
+1F212;SQUARED CJK UNIFIED IDEOGRAPH-53CC;So;0;L;<square> 53CC;;;;N;;;;;
+1F213;SQUARED KATAKANA DE;So;0;L;<square> 30C7;;;;N;;;;;
+1F214;SQUARED CJK UNIFIED IDEOGRAPH-4E8C;So;0;L;<square> 4E8C;;;;N;;;;;
+1F215;SQUARED CJK UNIFIED IDEOGRAPH-591A;So;0;L;<square> 591A;;;;N;;;;;
+1F216;SQUARED CJK UNIFIED IDEOGRAPH-89E3;So;0;L;<square> 89E3;;;;N;;;;;
+1F217;SQUARED CJK UNIFIED IDEOGRAPH-5929;So;0;L;<square> 5929;;;;N;;;;;
+1F218;SQUARED CJK UNIFIED IDEOGRAPH-4EA4;So;0;L;<square> 4EA4;;;;N;;;;;
+1F219;SQUARED CJK UNIFIED IDEOGRAPH-6620;So;0;L;<square> 6620;;;;N;;;;;
+1F21A;SQUARED CJK UNIFIED IDEOGRAPH-7121;So;0;L;<square> 7121;;;;N;;;;;
+1F21B;SQUARED CJK UNIFIED IDEOGRAPH-6599;So;0;L;<square> 6599;;;;N;;;;;
+1F21C;SQUARED CJK UNIFIED IDEOGRAPH-524D;So;0;L;<square> 524D;;;;N;;;;;
+1F21D;SQUARED CJK UNIFIED IDEOGRAPH-5F8C;So;0;L;<square> 5F8C;;;;N;;;;;
+1F21E;SQUARED CJK UNIFIED IDEOGRAPH-518D;So;0;L;<square> 518D;;;;N;;;;;
+1F21F;SQUARED CJK UNIFIED IDEOGRAPH-65B0;So;0;L;<square> 65B0;;;;N;;;;;
+1F220;SQUARED CJK UNIFIED IDEOGRAPH-521D;So;0;L;<square> 521D;;;;N;;;;;
+1F221;SQUARED CJK UNIFIED IDEOGRAPH-7D42;So;0;L;<square> 7D42;;;;N;;;;;
+1F222;SQUARED CJK UNIFIED IDEOGRAPH-751F;So;0;L;<square> 751F;;;;N;;;;;
+1F223;SQUARED CJK UNIFIED IDEOGRAPH-8CA9;So;0;L;<square> 8CA9;;;;N;;;;;
+1F224;SQUARED CJK UNIFIED IDEOGRAPH-58F0;So;0;L;<square> 58F0;;;;N;;;;;
+1F225;SQUARED CJK UNIFIED IDEOGRAPH-5439;So;0;L;<square> 5439;;;;N;;;;;
+1F226;SQUARED CJK UNIFIED IDEOGRAPH-6F14;So;0;L;<square> 6F14;;;;N;;;;;
+1F227;SQUARED CJK UNIFIED IDEOGRAPH-6295;So;0;L;<square> 6295;;;;N;;;;;
+1F228;SQUARED CJK UNIFIED IDEOGRAPH-6355;So;0;L;<square> 6355;;;;N;;;;;
+1F229;SQUARED CJK UNIFIED IDEOGRAPH-4E00;So;0;L;<square> 4E00;;;;N;;;;;
+1F22A;SQUARED CJK UNIFIED IDEOGRAPH-4E09;So;0;L;<square> 4E09;;;;N;;;;;
+1F22B;SQUARED CJK UNIFIED IDEOGRAPH-904A;So;0;L;<square> 904A;;;;N;;;;;
+1F22C;SQUARED CJK UNIFIED IDEOGRAPH-5DE6;So;0;L;<square> 5DE6;;;;N;;;;;
+1F22D;SQUARED CJK UNIFIED IDEOGRAPH-4E2D;So;0;L;<square> 4E2D;;;;N;;;;;
+1F22E;SQUARED CJK UNIFIED IDEOGRAPH-53F3;So;0;L;<square> 53F3;;;;N;;;;;
+1F22F;SQUARED CJK UNIFIED IDEOGRAPH-6307;So;0;L;<square> 6307;;;;N;;;;;
+1F230;SQUARED CJK UNIFIED IDEOGRAPH-8D70;So;0;L;<square> 8D70;;;;N;;;;;
+1F231;SQUARED CJK UNIFIED IDEOGRAPH-6253;So;0;L;<square> 6253;;;;N;;;;;
+1F232;SQUARED CJK UNIFIED IDEOGRAPH-7981;So;0;L;<square> 7981;;;;N;;;;;
+1F233;SQUARED CJK UNIFIED IDEOGRAPH-7A7A;So;0;L;<square> 7A7A;;;;N;;;;;
+1F234;SQUARED CJK UNIFIED IDEOGRAPH-5408;So;0;L;<square> 5408;;;;N;;;;;
+1F235;SQUARED CJK UNIFIED IDEOGRAPH-6E80;So;0;L;<square> 6E80;;;;N;;;;;
+1F236;SQUARED CJK UNIFIED IDEOGRAPH-6709;So;0;L;<square> 6709;;;;N;;;;;
+1F237;SQUARED CJK UNIFIED IDEOGRAPH-6708;So;0;L;<square> 6708;;;;N;;;;;
+1F238;SQUARED CJK UNIFIED IDEOGRAPH-7533;So;0;L;<square> 7533;;;;N;;;;;
+1F239;SQUARED CJK UNIFIED IDEOGRAPH-5272;So;0;L;<square> 5272;;;;N;;;;;
+1F23A;SQUARED CJK UNIFIED IDEOGRAPH-55B6;So;0;L;<square> 55B6;;;;N;;;;;
+1F240;TORTOISE SHELL BRACKETED CJK UNIFIED IDEOGRAPH-672C;So;0;L;<compat> 3014 672C 3015;;;;N;;;;;
+1F241;TORTOISE SHELL BRACKETED CJK UNIFIED IDEOGRAPH-4E09;So;0;L;<compat> 3014 4E09 3015;;;;N;;;;;
+1F242;TORTOISE SHELL BRACKETED CJK UNIFIED IDEOGRAPH-4E8C;So;0;L;<compat> 3014 4E8C 3015;;;;N;;;;;
+1F243;TORTOISE SHELL BRACKETED CJK UNIFIED IDEOGRAPH-5B89;So;0;L;<compat> 3014 5B89 3015;;;;N;;;;;
+1F244;TORTOISE SHELL BRACKETED CJK UNIFIED IDEOGRAPH-70B9;So;0;L;<compat> 3014 70B9 3015;;;;N;;;;;
+1F245;TORTOISE SHELL BRACKETED CJK UNIFIED IDEOGRAPH-6253;So;0;L;<compat> 3014 6253 3015;;;;N;;;;;
+1F246;TORTOISE SHELL BRACKETED CJK UNIFIED IDEOGRAPH-76D7;So;0;L;<compat> 3014 76D7 3015;;;;N;;;;;
+1F247;TORTOISE SHELL BRACKETED CJK UNIFIED IDEOGRAPH-52DD;So;0;L;<compat> 3014 52DD 3015;;;;N;;;;;
+1F248;TORTOISE SHELL BRACKETED CJK UNIFIED IDEOGRAPH-6557;So;0;L;<compat> 3014 6557 3015;;;;N;;;;;
+1F250;CIRCLED IDEOGRAPH ADVANTAGE;So;0;L;<circle> 5F97;;;;N;;;;;
+1F251;CIRCLED IDEOGRAPH ACCEPT;So;0;L;<circle> 53EF;;;;N;;;;;
+1F300;CYCLONE;So;0;ON;;;;;N;;;;;
+1F301;FOGGY;So;0;ON;;;;;N;;;;;
+1F302;CLOSED UMBRELLA;So;0;ON;;;;;N;;;;;
+1F303;NIGHT WITH STARS;So;0;ON;;;;;N;;;;;
+1F304;SUNRISE OVER MOUNTAINS;So;0;ON;;;;;N;;;;;
+1F305;SUNRISE;So;0;ON;;;;;N;;;;;
+1F306;CITYSCAPE AT DUSK;So;0;ON;;;;;N;;;;;
+1F307;SUNSET OVER BUILDINGS;So;0;ON;;;;;N;;;;;
+1F308;RAINBOW;So;0;ON;;;;;N;;;;;
+1F309;BRIDGE AT NIGHT;So;0;ON;;;;;N;;;;;
+1F30A;WATER WAVE;So;0;ON;;;;;N;;;;;
+1F30B;VOLCANO;So;0;ON;;;;;N;;;;;
+1F30C;MILKY WAY;So;0;ON;;;;;N;;;;;
+1F30D;EARTH GLOBE EUROPE-AFRICA;So;0;ON;;;;;N;;;;;
+1F30E;EARTH GLOBE AMERICAS;So;0;ON;;;;;N;;;;;
+1F30F;EARTH GLOBE ASIA-AUSTRALIA;So;0;ON;;;;;N;;;;;
+1F310;GLOBE WITH MERIDIANS;So;0;ON;;;;;N;;;;;
+1F311;NEW MOON SYMBOL;So;0;ON;;;;;N;;;;;
+1F312;WAXING CRESCENT MOON SYMBOL;So;0;ON;;;;;N;;;;;
+1F313;FIRST QUARTER MOON SYMBOL;So;0;ON;;;;;N;;;;;
+1F314;WAXING GIBBOUS MOON SYMBOL;So;0;ON;;;;;N;;;;;
+1F315;FULL MOON SYMBOL;So;0;ON;;;;;N;;;;;
+1F316;WANING GIBBOUS MOON SYMBOL;So;0;ON;;;;;N;;;;;
+1F317;LAST QUARTER MOON SYMBOL;So;0;ON;;;;;N;;;;;
+1F318;WANING CRESCENT MOON SYMBOL;So;0;ON;;;;;N;;;;;
+1F319;CRESCENT MOON;So;0;ON;;;;;N;;;;;
+1F31A;NEW MOON WITH FACE;So;0;ON;;;;;N;;;;;
+1F31B;FIRST QUARTER MOON WITH FACE;So;0;ON;;;;;N;;;;;
+1F31C;LAST QUARTER MOON WITH FACE;So;0;ON;;;;;N;;;;;
+1F31D;FULL MOON WITH FACE;So;0;ON;;;;;N;;;;;
+1F31E;SUN WITH FACE;So;0;ON;;;;;N;;;;;
+1F31F;GLOWING STAR;So;0;ON;;;;;N;;;;;
+1F320;SHOOTING STAR;So;0;ON;;;;;N;;;;;
+1F330;CHESTNUT;So;0;ON;;;;;N;;;;;
+1F331;SEEDLING;So;0;ON;;;;;N;;;;;
+1F332;EVERGREEN TREE;So;0;ON;;;;;N;;;;;
+1F333;DECIDUOUS TREE;So;0;ON;;;;;N;;;;;
+1F334;PALM TREE;So;0;ON;;;;;N;;;;;
+1F335;CACTUS;So;0;ON;;;;;N;;;;;
+1F337;TULIP;So;0;ON;;;;;N;;;;;
+1F338;CHERRY BLOSSOM;So;0;ON;;;;;N;;;;;
+1F339;ROSE;So;0;ON;;;;;N;;;;;
+1F33A;HIBISCUS;So;0;ON;;;;;N;;;;;
+1F33B;SUNFLOWER;So;0;ON;;;;;N;;;;;
+1F33C;BLOSSOM;So;0;ON;;;;;N;;;;;
+1F33D;EAR OF MAIZE;So;0;ON;;;;;N;;;;;
+1F33E;EAR OF RICE;So;0;ON;;;;;N;;;;;
+1F33F;HERB;So;0;ON;;;;;N;;;;;
+1F340;FOUR LEAF CLOVER;So;0;ON;;;;;N;;;;;
+1F341;MAPLE LEAF;So;0;ON;;;;;N;;;;;
+1F342;FALLEN LEAF;So;0;ON;;;;;N;;;;;
+1F343;LEAF FLUTTERING IN WIND;So;0;ON;;;;;N;;;;;
+1F344;MUSHROOM;So;0;ON;;;;;N;;;;;
+1F345;TOMATO;So;0;ON;;;;;N;;;;;
+1F346;AUBERGINE;So;0;ON;;;;;N;;;;;
+1F347;GRAPES;So;0;ON;;;;;N;;;;;
+1F348;MELON;So;0;ON;;;;;N;;;;;
+1F349;WATERMELON;So;0;ON;;;;;N;;;;;
+1F34A;TANGERINE;So;0;ON;;;;;N;;;;;
+1F34B;LEMON;So;0;ON;;;;;N;;;;;
+1F34C;BANANA;So;0;ON;;;;;N;;;;;
+1F34D;PINEAPPLE;So;0;ON;;;;;N;;;;;
+1F34E;RED APPLE;So;0;ON;;;;;N;;;;;
+1F34F;GREEN APPLE;So;0;ON;;;;;N;;;;;
+1F350;PEAR;So;0;ON;;;;;N;;;;;
+1F351;PEACH;So;0;ON;;;;;N;;;;;
+1F352;CHERRIES;So;0;ON;;;;;N;;;;;
+1F353;STRAWBERRY;So;0;ON;;;;;N;;;;;
+1F354;HAMBURGER;So;0;ON;;;;;N;;;;;
+1F355;SLICE OF PIZZA;So;0;ON;;;;;N;;;;;
+1F356;MEAT ON BONE;So;0;ON;;;;;N;;;;;
+1F357;POULTRY LEG;So;0;ON;;;;;N;;;;;
+1F358;RICE CRACKER;So;0;ON;;;;;N;;;;;
+1F359;RICE BALL;So;0;ON;;;;;N;;;;;
+1F35A;COOKED RICE;So;0;ON;;;;;N;;;;;
+1F35B;CURRY AND RICE;So;0;ON;;;;;N;;;;;
+1F35C;STEAMING BOWL;So;0;ON;;;;;N;;;;;
+1F35D;SPAGHETTI;So;0;ON;;;;;N;;;;;
+1F35E;BREAD;So;0;ON;;;;;N;;;;;
+1F35F;FRENCH FRIES;So;0;ON;;;;;N;;;;;
+1F360;ROASTED SWEET POTATO;So;0;ON;;;;;N;;;;;
+1F361;DANGO;So;0;ON;;;;;N;;;;;
+1F362;ODEN;So;0;ON;;;;;N;;;;;
+1F363;SUSHI;So;0;ON;;;;;N;;;;;
+1F364;FRIED SHRIMP;So;0;ON;;;;;N;;;;;
+1F365;FISH CAKE WITH SWIRL DESIGN;So;0;ON;;;;;N;;;;;
+1F366;SOFT ICE CREAM;So;0;ON;;;;;N;;;;;
+1F367;SHAVED ICE;So;0;ON;;;;;N;;;;;
+1F368;ICE CREAM;So;0;ON;;;;;N;;;;;
+1F369;DOUGHNUT;So;0;ON;;;;;N;;;;;
+1F36A;COOKIE;So;0;ON;;;;;N;;;;;
+1F36B;CHOCOLATE BAR;So;0;ON;;;;;N;;;;;
+1F36C;CANDY;So;0;ON;;;;;N;;;;;
+1F36D;LOLLIPOP;So;0;ON;;;;;N;;;;;
+1F36E;CUSTARD;So;0;ON;;;;;N;;;;;
+1F36F;HONEY POT;So;0;ON;;;;;N;;;;;
+1F370;SHORTCAKE;So;0;ON;;;;;N;;;;;
+1F371;BENTO BOX;So;0;ON;;;;;N;;;;;
+1F372;POT OF FOOD;So;0;ON;;;;;N;;;;;
+1F373;COOKING;So;0;ON;;;;;N;;;;;
+1F374;FORK AND KNIFE;So;0;ON;;;;;N;;;;;
+1F375;TEACUP WITHOUT HANDLE;So;0;ON;;;;;N;;;;;
+1F376;SAKE BOTTLE AND CUP;So;0;ON;;;;;N;;;;;
+1F377;WINE GLASS;So;0;ON;;;;;N;;;;;
+1F378;COCKTAIL GLASS;So;0;ON;;;;;N;;;;;
+1F379;TROPICAL DRINK;So;0;ON;;;;;N;;;;;
+1F37A;BEER MUG;So;0;ON;;;;;N;;;;;
+1F37B;CLINKING BEER MUGS;So;0;ON;;;;;N;;;;;
+1F37C;BABY BOTTLE;So;0;ON;;;;;N;;;;;
+1F380;RIBBON;So;0;ON;;;;;N;;;;;
+1F381;WRAPPED PRESENT;So;0;ON;;;;;N;;;;;
+1F382;BIRTHDAY CAKE;So;0;ON;;;;;N;;;;;
+1F383;JACK-O-LANTERN;So;0;ON;;;;;N;;;;;
+1F384;CHRISTMAS TREE;So;0;ON;;;;;N;;;;;
+1F385;FATHER CHRISTMAS;So;0;ON;;;;;N;;;;;
+1F386;FIREWORKS;So;0;ON;;;;;N;;;;;
+1F387;FIREWORK SPARKLER;So;0;ON;;;;;N;;;;;
+1F388;BALLOON;So;0;ON;;;;;N;;;;;
+1F389;PARTY POPPER;So;0;ON;;;;;N;;;;;
+1F38A;CONFETTI BALL;So;0;ON;;;;;N;;;;;
+1F38B;TANABATA TREE;So;0;ON;;;;;N;;;;;
+1F38C;CROSSED FLAGS;So;0;ON;;;;;N;;;;;
+1F38D;PINE DECORATION;So;0;ON;;;;;N;;;;;
+1F38E;JAPANESE DOLLS;So;0;ON;;;;;N;;;;;
+1F38F;CARP STREAMER;So;0;ON;;;;;N;;;;;
+1F390;WIND CHIME;So;0;ON;;;;;N;;;;;
+1F391;MOON VIEWING CEREMONY;So;0;ON;;;;;N;;;;;
+1F392;SCHOOL SATCHEL;So;0;ON;;;;;N;;;;;
+1F393;GRADUATION CAP;So;0;ON;;;;;N;;;;;
+1F3A0;CAROUSEL HORSE;So;0;ON;;;;;N;;;;;
+1F3A1;FERRIS WHEEL;So;0;ON;;;;;N;;;;;
+1F3A2;ROLLER COASTER;So;0;ON;;;;;N;;;;;
+1F3A3;FISHING POLE AND FISH;So;0;ON;;;;;N;;;;;
+1F3A4;MICROPHONE;So;0;ON;;;;;N;;;;;
+1F3A5;MOVIE CAMERA;So;0;ON;;;;;N;;;;;
+1F3A6;CINEMA;So;0;ON;;;;;N;;;;;
+1F3A7;HEADPHONE;So;0;ON;;;;;N;;;;;
+1F3A8;ARTIST PALETTE;So;0;ON;;;;;N;;;;;
+1F3A9;TOP HAT;So;0;ON;;;;;N;;;;;
+1F3AA;CIRCUS TENT;So;0;ON;;;;;N;;;;;
+1F3AB;TICKET;So;0;ON;;;;;N;;;;;
+1F3AC;CLAPPER BOARD;So;0;ON;;;;;N;;;;;
+1F3AD;PERFORMING ARTS;So;0;ON;;;;;N;;;;;
+1F3AE;VIDEO GAME;So;0;ON;;;;;N;;;;;
+1F3AF;DIRECT HIT;So;0;ON;;;;;N;;;;;
+1F3B0;SLOT MACHINE;So;0;ON;;;;;N;;;;;
+1F3B1;BILLIARDS;So;0;ON;;;;;N;;;;;
+1F3B2;GAME DIE;So;0;ON;;;;;N;;;;;
+1F3B3;BOWLING;So;0;ON;;;;;N;;;;;
+1F3B4;FLOWER PLAYING CARDS;So;0;ON;;;;;N;;;;;
+1F3B5;MUSICAL NOTE;So;0;ON;;;;;N;;;;;
+1F3B6;MULTIPLE MUSICAL NOTES;So;0;ON;;;;;N;;;;;
+1F3B7;SAXOPHONE;So;0;ON;;;;;N;;;;;
+1F3B8;GUITAR;So;0;ON;;;;;N;;;;;
+1F3B9;MUSICAL KEYBOARD;So;0;ON;;;;;N;;;;;
+1F3BA;TRUMPET;So;0;ON;;;;;N;;;;;
+1F3BB;VIOLIN;So;0;ON;;;;;N;;;;;
+1F3BC;MUSICAL SCORE;So;0;ON;;;;;N;;;;;
+1F3BD;RUNNING SHIRT WITH SASH;So;0;ON;;;;;N;;;;;
+1F3BE;TENNIS RACQUET AND BALL;So;0;ON;;;;;N;;;;;
+1F3BF;SKI AND SKI BOOT;So;0;ON;;;;;N;;;;;
+1F3C0;BASKETBALL AND HOOP;So;0;ON;;;;;N;;;;;
+1F3C1;CHEQUERED FLAG;So;0;ON;;;;;N;;;;;
+1F3C2;SNOWBOARDER;So;0;ON;;;;;N;;;;;
+1F3C3;RUNNER;So;0;ON;;;;;N;;;;;
+1F3C4;SURFER;So;0;ON;;;;;N;;;;;
+1F3C6;TROPHY;So;0;ON;;;;;N;;;;;
+1F3C7;HORSE RACING;So;0;ON;;;;;N;;;;;
+1F3C8;AMERICAN FOOTBALL;So;0;ON;;;;;N;;;;;
+1F3C9;RUGBY FOOTBALL;So;0;ON;;;;;N;;;;;
+1F3CA;SWIMMER;So;0;ON;;;;;N;;;;;
+1F3E0;HOUSE BUILDING;So;0;ON;;;;;N;;;;;
+1F3E1;HOUSE WITH GARDEN;So;0;ON;;;;;N;;;;;
+1F3E2;OFFICE BUILDING;So;0;ON;;;;;N;;;;;
+1F3E3;JAPANESE POST OFFICE;So;0;ON;;;;;N;;;;;
+1F3E4;EUROPEAN POST OFFICE;So;0;ON;;;;;N;;;;;
+1F3E5;HOSPITAL;So;0;ON;;;;;N;;;;;
+1F3E6;BANK;So;0;ON;;;;;N;;;;;
+1F3E7;AUTOMATED TELLER MACHINE;So;0;ON;;;;;N;;;;;
+1F3E8;HOTEL;So;0;ON;;;;;N;;;;;
+1F3E9;LOVE HOTEL;So;0;ON;;;;;N;;;;;
+1F3EA;CONVENIENCE STORE;So;0;ON;;;;;N;;;;;
+1F3EB;SCHOOL;So;0;ON;;;;;N;;;;;
+1F3EC;DEPARTMENT STORE;So;0;ON;;;;;N;;;;;
+1F3ED;FACTORY;So;0;ON;;;;;N;;;;;
+1F3EE;IZAKAYA LANTERN;So;0;ON;;;;;N;;;;;
+1F3EF;JAPANESE CASTLE;So;0;ON;;;;;N;;;;;
+1F3F0;EUROPEAN CASTLE;So;0;ON;;;;;N;;;;;
+1F400;RAT;So;0;ON;;;;;N;;;;;
+1F401;MOUSE;So;0;ON;;;;;N;;;;;
+1F402;OX;So;0;ON;;;;;N;;;;;
+1F403;WATER BUFFALO;So;0;ON;;;;;N;;;;;
+1F404;COW;So;0;ON;;;;;N;;;;;
+1F405;TIGER;So;0;ON;;;;;N;;;;;
+1F406;LEOPARD;So;0;ON;;;;;N;;;;;
+1F407;RABBIT;So;0;ON;;;;;N;;;;;
+1F408;CAT;So;0;ON;;;;;N;;;;;
+1F409;DRAGON;So;0;ON;;;;;N;;;;;
+1F40A;CROCODILE;So;0;ON;;;;;N;;;;;
+1F40B;WHALE;So;0;ON;;;;;N;;;;;
+1F40C;SNAIL;So;0;ON;;;;;N;;;;;
+1F40D;SNAKE;So;0;ON;;;;;N;;;;;
+1F40E;HORSE;So;0;ON;;;;;N;;;;;
+1F40F;RAM;So;0;ON;;;;;N;;;;;
+1F410;GOAT;So;0;ON;;;;;N;;;;;
+1F411;SHEEP;So;0;ON;;;;;N;;;;;
+1F412;MONKEY;So;0;ON;;;;;N;;;;;
+1F413;ROOSTER;So;0;ON;;;;;N;;;;;
+1F414;CHICKEN;So;0;ON;;;;;N;;;;;
+1F415;DOG;So;0;ON;;;;;N;;;;;
+1F416;PIG;So;0;ON;;;;;N;;;;;
+1F417;BOAR;So;0;ON;;;;;N;;;;;
+1F418;ELEPHANT;So;0;ON;;;;;N;;;;;
+1F419;OCTOPUS;So;0;ON;;;;;N;;;;;
+1F41A;SPIRAL SHELL;So;0;ON;;;;;N;;;;;
+1F41B;BUG;So;0;ON;;;;;N;;;;;
+1F41C;ANT;So;0;ON;;;;;N;;;;;
+1F41D;HONEYBEE;So;0;ON;;;;;N;;;;;
+1F41E;LADY BEETLE;So;0;ON;;;;;N;;;;;
+1F41F;FISH;So;0;ON;;;;;N;;;;;
+1F420;TROPICAL FISH;So;0;ON;;;;;N;;;;;
+1F421;BLOWFISH;So;0;ON;;;;;N;;;;;
+1F422;TURTLE;So;0;ON;;;;;N;;;;;
+1F423;HATCHING CHICK;So;0;ON;;;;;N;;;;;
+1F424;BABY CHICK;So;0;ON;;;;;N;;;;;
+1F425;FRONT-FACING BABY CHICK;So;0;ON;;;;;N;;;;;
+1F426;BIRD;So;0;ON;;;;;N;;;;;
+1F427;PENGUIN;So;0;ON;;;;;N;;;;;
+1F428;KOALA;So;0;ON;;;;;N;;;;;
+1F429;POODLE;So;0;ON;;;;;N;;;;;
+1F42A;DROMEDARY CAMEL;So;0;ON;;;;;N;;;;;
+1F42B;BACTRIAN CAMEL;So;0;ON;;;;;N;;;;;
+1F42C;DOLPHIN;So;0;ON;;;;;N;;;;;
+1F42D;MOUSE FACE;So;0;ON;;;;;N;;;;;
+1F42E;COW FACE;So;0;ON;;;;;N;;;;;
+1F42F;TIGER FACE;So;0;ON;;;;;N;;;;;
+1F430;RABBIT FACE;So;0;ON;;;;;N;;;;;
+1F431;CAT FACE;So;0;ON;;;;;N;;;;;
+1F432;DRAGON FACE;So;0;ON;;;;;N;;;;;
+1F433;SPOUTING WHALE;So;0;ON;;;;;N;;;;;
+1F434;HORSE FACE;So;0;ON;;;;;N;;;;;
+1F435;MONKEY FACE;So;0;ON;;;;;N;;;;;
+1F436;DOG FACE;So;0;ON;;;;;N;;;;;
+1F437;PIG FACE;So;0;ON;;;;;N;;;;;
+1F438;FROG FACE;So;0;ON;;;;;N;;;;;
+1F439;HAMSTER FACE;So;0;ON;;;;;N;;;;;
+1F43A;WOLF FACE;So;0;ON;;;;;N;;;;;
+1F43B;BEAR FACE;So;0;ON;;;;;N;;;;;
+1F43C;PANDA FACE;So;0;ON;;;;;N;;;;;
+1F43D;PIG NOSE;So;0;ON;;;;;N;;;;;
+1F43E;PAW PRINTS;So;0;ON;;;;;N;;;;;
+1F440;EYES;So;0;ON;;;;;N;;;;;
+1F442;EAR;So;0;ON;;;;;N;;;;;
+1F443;NOSE;So;0;ON;;;;;N;;;;;
+1F444;MOUTH;So;0;ON;;;;;N;;;;;
+1F445;TONGUE;So;0;ON;;;;;N;;;;;
+1F446;WHITE UP POINTING BACKHAND INDEX;So;0;ON;;;;;N;;;;;
+1F447;WHITE DOWN POINTING BACKHAND INDEX;So;0;ON;;;;;N;;;;;
+1F448;WHITE LEFT POINTING BACKHAND INDEX;So;0;ON;;;;;N;;;;;
+1F449;WHITE RIGHT POINTING BACKHAND INDEX;So;0;ON;;;;;N;;;;;
+1F44A;FISTED HAND SIGN;So;0;ON;;;;;N;;;;;
+1F44B;WAVING HAND SIGN;So;0;ON;;;;;N;;;;;
+1F44C;OK HAND SIGN;So;0;ON;;;;;N;;;;;
+1F44D;THUMBS UP SIGN;So;0;ON;;;;;N;;;;;
+1F44E;THUMBS DOWN SIGN;So;0;ON;;;;;N;;;;;
+1F44F;CLAPPING HANDS SIGN;So;0;ON;;;;;N;;;;;
+1F450;OPEN HANDS SIGN;So;0;ON;;;;;N;;;;;
+1F451;CROWN;So;0;ON;;;;;N;;;;;
+1F452;WOMANS HAT;So;0;ON;;;;;N;;;;;
+1F453;EYEGLASSES;So;0;ON;;;;;N;;;;;
+1F454;NECKTIE;So;0;ON;;;;;N;;;;;
+1F455;T-SHIRT;So;0;ON;;;;;N;;;;;
+1F456;JEANS;So;0;ON;;;;;N;;;;;
+1F457;DRESS;So;0;ON;;;;;N;;;;;
+1F458;KIMONO;So;0;ON;;;;;N;;;;;
+1F459;BIKINI;So;0;ON;;;;;N;;;;;
+1F45A;WOMANS CLOTHES;So;0;ON;;;;;N;;;;;
+1F45B;PURSE;So;0;ON;;;;;N;;;;;
+1F45C;HANDBAG;So;0;ON;;;;;N;;;;;
+1F45D;POUCH;So;0;ON;;;;;N;;;;;
+1F45E;MANS SHOE;So;0;ON;;;;;N;;;;;
+1F45F;ATHLETIC SHOE;So;0;ON;;;;;N;;;;;
+1F460;HIGH-HEELED SHOE;So;0;ON;;;;;N;;;;;
+1F461;WOMANS SANDAL;So;0;ON;;;;;N;;;;;
+1F462;WOMANS BOOTS;So;0;ON;;;;;N;;;;;
+1F463;FOOTPRINTS;So;0;ON;;;;;N;;;;;
+1F464;BUST IN SILHOUETTE;So;0;ON;;;;;N;;;;;
+1F465;BUSTS IN SILHOUETTE;So;0;ON;;;;;N;;;;;
+1F466;BOY;So;0;ON;;;;;N;;;;;
+1F467;GIRL;So;0;ON;;;;;N;;;;;
+1F468;MAN;So;0;ON;;;;;N;;;;;
+1F469;WOMAN;So;0;ON;;;;;N;;;;;
+1F46A;FAMILY;So;0;ON;;;;;N;;;;;
+1F46B;MAN AND WOMAN HOLDING HANDS;So;0;ON;;;;;N;;;;;
+1F46C;TWO MEN HOLDING HANDS;So;0;ON;;;;;N;;;;;
+1F46D;TWO WOMEN HOLDING HANDS;So;0;ON;;;;;N;;;;;
+1F46E;POLICE OFFICER;So;0;ON;;;;;N;;;;;
+1F46F;WOMAN WITH BUNNY EARS;So;0;ON;;;;;N;;;;;
+1F470;BRIDE WITH VEIL;So;0;ON;;;;;N;;;;;
+1F471;PERSON WITH BLOND HAIR;So;0;ON;;;;;N;;;;;
+1F472;MAN WITH GUA PI MAO;So;0;ON;;;;;N;;;;;
+1F473;MAN WITH TURBAN;So;0;ON;;;;;N;;;;;
+1F474;OLDER MAN;So;0;ON;;;;;N;;;;;
+1F475;OLDER WOMAN;So;0;ON;;;;;N;;;;;
+1F476;BABY;So;0;ON;;;;;N;;;;;
+1F477;CONSTRUCTION WORKER;So;0;ON;;;;;N;;;;;
+1F478;PRINCESS;So;0;ON;;;;;N;;;;;
+1F479;JAPANESE OGRE;So;0;ON;;;;;N;;;;;
+1F47A;JAPANESE GOBLIN;So;0;ON;;;;;N;;;;;
+1F47B;GHOST;So;0;ON;;;;;N;;;;;
+1F47C;BABY ANGEL;So;0;ON;;;;;N;;;;;
+1F47D;EXTRATERRESTRIAL ALIEN;So;0;ON;;;;;N;;;;;
+1F47E;ALIEN MONSTER;So;0;ON;;;;;N;;;;;
+1F47F;IMP;So;0;ON;;;;;N;;;;;
+1F480;SKULL;So;0;ON;;;;;N;;;;;
+1F481;INFORMATION DESK PERSON;So;0;ON;;;;;N;;;;;
+1F482;GUARDSMAN;So;0;ON;;;;;N;;;;;
+1F483;DANCER;So;0;ON;;;;;N;;;;;
+1F484;LIPSTICK;So;0;ON;;;;;N;;;;;
+1F485;NAIL POLISH;So;0;ON;;;;;N;;;;;
+1F486;FACE MASSAGE;So;0;ON;;;;;N;;;;;
+1F487;HAIRCUT;So;0;ON;;;;;N;;;;;
+1F488;BARBER POLE;So;0;ON;;;;;N;;;;;
+1F489;SYRINGE;So;0;ON;;;;;N;;;;;
+1F48A;PILL;So;0;ON;;;;;N;;;;;
+1F48B;KISS MARK;So;0;ON;;;;;N;;;;;
+1F48C;LOVE LETTER;So;0;ON;;;;;N;;;;;
+1F48D;RING;So;0;ON;;;;;N;;;;;
+1F48E;GEM STONE;So;0;ON;;;;;N;;;;;
+1F48F;KISS;So;0;ON;;;;;N;;;;;
+1F490;BOUQUET;So;0;ON;;;;;N;;;;;
+1F491;COUPLE WITH HEART;So;0;ON;;;;;N;;;;;
+1F492;WEDDING;So;0;ON;;;;;N;;;;;
+1F493;BEATING HEART;So;0;ON;;;;;N;;;;;
+1F494;BROKEN HEART;So;0;ON;;;;;N;;;;;
+1F495;TWO HEARTS;So;0;ON;;;;;N;;;;;
+1F496;SPARKLING HEART;So;0;ON;;;;;N;;;;;
+1F497;GROWING HEART;So;0;ON;;;;;N;;;;;
+1F498;HEART WITH ARROW;So;0;ON;;;;;N;;;;;
+1F499;BLUE HEART;So;0;ON;;;;;N;;;;;
+1F49A;GREEN HEART;So;0;ON;;;;;N;;;;;
+1F49B;YELLOW HEART;So;0;ON;;;;;N;;;;;
+1F49C;PURPLE HEART;So;0;ON;;;;;N;;;;;
+1F49D;HEART WITH RIBBON;So;0;ON;;;;;N;;;;;
+1F49E;REVOLVING HEARTS;So;0;ON;;;;;N;;;;;
+1F49F;HEART DECORATION;So;0;ON;;;;;N;;;;;
+1F4A0;DIAMOND SHAPE WITH A DOT INSIDE;So;0;ON;;;;;N;;;;;
+1F4A1;ELECTRIC LIGHT BULB;So;0;ON;;;;;N;;;;;
+1F4A2;ANGER SYMBOL;So;0;ON;;;;;N;;;;;
+1F4A3;BOMB;So;0;ON;;;;;N;;;;;
+1F4A4;SLEEPING SYMBOL;So;0;ON;;;;;N;;;;;
+1F4A5;COLLISION SYMBOL;So;0;ON;;;;;N;;;;;
+1F4A6;SPLASHING SWEAT SYMBOL;So;0;ON;;;;;N;;;;;
+1F4A7;DROPLET;So;0;ON;;;;;N;;;;;
+1F4A8;DASH SYMBOL;So;0;ON;;;;;N;;;;;
+1F4A9;PILE OF POO;So;0;ON;;;;;N;;;;;
+1F4AA;FLEXED BICEPS;So;0;ON;;;;;N;;;;;
+1F4AB;DIZZY SYMBOL;So;0;ON;;;;;N;;;;;
+1F4AC;SPEECH BALLOON;So;0;ON;;;;;N;;;;;
+1F4AD;THOUGHT BALLOON;So;0;ON;;;;;N;;;;;
+1F4AE;WHITE FLOWER;So;0;ON;;;;;N;;;;;
+1F4AF;HUNDRED POINTS SYMBOL;So;0;ON;;;;;N;;;;;
+1F4B0;MONEY BAG;So;0;ON;;;;;N;;;;;
+1F4B1;CURRENCY EXCHANGE;So;0;ON;;;;;N;;;;;
+1F4B2;HEAVY DOLLAR SIGN;So;0;ON;;;;;N;;;;;
+1F4B3;CREDIT CARD;So;0;ON;;;;;N;;;;;
+1F4B4;BANKNOTE WITH YEN SIGN;So;0;ON;;;;;N;;;;;
+1F4B5;BANKNOTE WITH DOLLAR SIGN;So;0;ON;;;;;N;;;;;
+1F4B6;BANKNOTE WITH EURO SIGN;So;0;ON;;;;;N;;;;;
+1F4B7;BANKNOTE WITH POUND SIGN;So;0;ON;;;;;N;;;;;
+1F4B8;MONEY WITH WINGS;So;0;ON;;;;;N;;;;;
+1F4B9;CHART WITH UPWARDS TREND AND YEN SIGN;So;0;ON;;;;;N;;;;;
+1F4BA;SEAT;So;0;ON;;;;;N;;;;;
+1F4BB;PERSONAL COMPUTER;So;0;ON;;;;;N;;;;;
+1F4BC;BRIEFCASE;So;0;ON;;;;;N;;;;;
+1F4BD;MINIDISC;So;0;ON;;;;;N;;;;;
+1F4BE;FLOPPY DISK;So;0;ON;;;;;N;;;;;
+1F4BF;OPTICAL DISC;So;0;ON;;;;;N;;;;;
+1F4C0;DVD;So;0;ON;;;;;N;;;;;
+1F4C1;FILE FOLDER;So;0;ON;;;;;N;;;;;
+1F4C2;OPEN FILE FOLDER;So;0;ON;;;;;N;;;;;
+1F4C3;PAGE WITH CURL;So;0;ON;;;;;N;;;;;
+1F4C4;PAGE FACING UP;So;0;ON;;;;;N;;;;;
+1F4C5;CALENDAR;So;0;ON;;;;;N;;;;;
+1F4C6;TEAR-OFF CALENDAR;So;0;ON;;;;;N;;;;;
+1F4C7;CARD INDEX;So;0;ON;;;;;N;;;;;
+1F4C8;CHART WITH UPWARDS TREND;So;0;ON;;;;;N;;;;;
+1F4C9;CHART WITH DOWNWARDS TREND;So;0;ON;;;;;N;;;;;
+1F4CA;BAR CHART;So;0;ON;;;;;N;;;;;
+1F4CB;CLIPBOARD;So;0;ON;;;;;N;;;;;
+1F4CC;PUSHPIN;So;0;ON;;;;;N;;;;;
+1F4CD;ROUND PUSHPIN;So;0;ON;;;;;N;;;;;
+1F4CE;PAPERCLIP;So;0;ON;;;;;N;;;;;
+1F4CF;STRAIGHT RULER;So;0;ON;;;;;N;;;;;
+1F4D0;TRIANGULAR RULER;So;0;ON;;;;;N;;;;;
+1F4D1;BOOKMARK TABS;So;0;ON;;;;;N;;;;;
+1F4D2;LEDGER;So;0;ON;;;;;N;;;;;
+1F4D3;NOTEBOOK;So;0;ON;;;;;N;;;;;
+1F4D4;NOTEBOOK WITH DECORATIVE COVER;So;0;ON;;;;;N;;;;;
+1F4D5;CLOSED BOOK;So;0;ON;;;;;N;;;;;
+1F4D6;OPEN BOOK;So;0;ON;;;;;N;;;;;
+1F4D7;GREEN BOOK;So;0;ON;;;;;N;;;;;
+1F4D8;BLUE BOOK;So;0;ON;;;;;N;;;;;
+1F4D9;ORANGE BOOK;So;0;ON;;;;;N;;;;;
+1F4DA;BOOKS;So;0;ON;;;;;N;;;;;
+1F4DB;NAME BADGE;So;0;ON;;;;;N;;;;;
+1F4DC;SCROLL;So;0;ON;;;;;N;;;;;
+1F4DD;MEMO;So;0;ON;;;;;N;;;;;
+1F4DE;TELEPHONE RECEIVER;So;0;ON;;;;;N;;;;;
+1F4DF;PAGER;So;0;ON;;;;;N;;;;;
+1F4E0;FAX MACHINE;So;0;ON;;;;;N;;;;;
+1F4E1;SATELLITE ANTENNA;So;0;ON;;;;;N;;;;;
+1F4E2;PUBLIC ADDRESS LOUDSPEAKER;So;0;ON;;;;;N;;;;;
+1F4E3;CHEERING MEGAPHONE;So;0;ON;;;;;N;;;;;
+1F4E4;OUTBOX TRAY;So;0;ON;;;;;N;;;;;
+1F4E5;INBOX TRAY;So;0;ON;;;;;N;;;;;
+1F4E6;PACKAGE;So;0;ON;;;;;N;;;;;
+1F4E7;E-MAIL SYMBOL;So;0;ON;;;;;N;;;;;
+1F4E8;INCOMING ENVELOPE;So;0;ON;;;;;N;;;;;
+1F4E9;ENVELOPE WITH DOWNWARDS ARROW ABOVE;So;0;ON;;;;;N;;;;;
+1F4EA;CLOSED MAILBOX WITH LOWERED FLAG;So;0;ON;;;;;N;;;;;
+1F4EB;CLOSED MAILBOX WITH RAISED FLAG;So;0;ON;;;;;N;;;;;
+1F4EC;OPEN MAILBOX WITH RAISED FLAG;So;0;ON;;;;;N;;;;;
+1F4ED;OPEN MAILBOX WITH LOWERED FLAG;So;0;ON;;;;;N;;;;;
+1F4EE;POSTBOX;So;0;ON;;;;;N;;;;;
+1F4EF;POSTAL HORN;So;0;ON;;;;;N;;;;;
+1F4F0;NEWSPAPER;So;0;ON;;;;;N;;;;;
+1F4F1;MOBILE PHONE;So;0;ON;;;;;N;;;;;
+1F4F2;MOBILE PHONE WITH RIGHTWARDS ARROW AT LEFT;So;0;ON;;;;;N;;;;;
+1F4F3;VIBRATION MODE;So;0;ON;;;;;N;;;;;
+1F4F4;MOBILE PHONE OFF;So;0;ON;;;;;N;;;;;
+1F4F5;NO MOBILE PHONES;So;0;ON;;;;;N;;;;;
+1F4F6;ANTENNA WITH BARS;So;0;ON;;;;;N;;;;;
+1F4F7;CAMERA;So;0;ON;;;;;N;;;;;
+1F4F9;VIDEO CAMERA;So;0;ON;;;;;N;;;;;
+1F4FA;TELEVISION;So;0;ON;;;;;N;;;;;
+1F4FB;RADIO;So;0;ON;;;;;N;;;;;
+1F4FC;VIDEOCASSETTE;So;0;ON;;;;;N;;;;;
+1F500;TWISTED RIGHTWARDS ARROWS;So;0;ON;;;;;N;;;;;
+1F501;CLOCKWISE RIGHTWARDS AND LEFTWARDS OPEN CIRCLE ARROWS;So;0;ON;;;;;N;;;;;
+1F502;CLOCKWISE RIGHTWARDS AND LEFTWARDS OPEN CIRCLE ARROWS WITH CIRCLED ONE OVERLAY;So;0;ON;;;;;N;;;;;
+1F503;CLOCKWISE DOWNWARDS AND UPWARDS OPEN CIRCLE ARROWS;So;0;ON;;;;;N;;;;;
+1F504;ANTICLOCKWISE DOWNWARDS AND UPWARDS OPEN CIRCLE ARROWS;So;0;ON;;;;;N;;;;;
+1F505;LOW BRIGHTNESS SYMBOL;So;0;ON;;;;;N;;;;;
+1F506;HIGH BRIGHTNESS SYMBOL;So;0;ON;;;;;N;;;;;
+1F507;SPEAKER WITH CANCELLATION STROKE;So;0;ON;;;;;N;;;;;
+1F508;SPEAKER;So;0;ON;;;;;N;;;;;
+1F509;SPEAKER WITH ONE SOUND WAVE;So;0;ON;;;;;N;;;;;
+1F50A;SPEAKER WITH THREE SOUND WAVES;So;0;ON;;;;;N;;;;;
+1F50B;BATTERY;So;0;ON;;;;;N;;;;;
+1F50C;ELECTRIC PLUG;So;0;ON;;;;;N;;;;;
+1F50D;LEFT-POINTING MAGNIFYING GLASS;So;0;ON;;;;;N;;;;;
+1F50E;RIGHT-POINTING MAGNIFYING GLASS;So;0;ON;;;;;N;;;;;
+1F50F;LOCK WITH INK PEN;So;0;ON;;;;;N;;;;;
+1F510;CLOSED LOCK WITH KEY;So;0;ON;;;;;N;;;;;
+1F511;KEY;So;0;ON;;;;;N;;;;;
+1F512;LOCK;So;0;ON;;;;;N;;;;;
+1F513;OPEN LOCK;So;0;ON;;;;;N;;;;;
+1F514;BELL;So;0;ON;;;;;N;;;;;
+1F515;BELL WITH CANCELLATION STROKE;So;0;ON;;;;;N;;;;;
+1F516;BOOKMARK;So;0;ON;;;;;N;;;;;
+1F517;LINK SYMBOL;So;0;ON;;;;;N;;;;;
+1F518;RADIO BUTTON;So;0;ON;;;;;N;;;;;
+1F519;BACK WITH LEFTWARDS ARROW ABOVE;So;0;ON;;;;;N;;;;;
+1F51A;END WITH LEFTWARDS ARROW ABOVE;So;0;ON;;;;;N;;;;;
+1F51B;ON WITH EXCLAMATION MARK WITH LEFT RIGHT ARROW ABOVE;So;0;ON;;;;;N;;;;;
+1F51C;SOON WITH RIGHTWARDS ARROW ABOVE;So;0;ON;;;;;N;;;;;
+1F51D;TOP WITH UPWARDS ARROW ABOVE;So;0;ON;;;;;N;;;;;
+1F51E;NO ONE UNDER EIGHTEEN SYMBOL;So;0;ON;;;;;N;;;;;
+1F51F;KEYCAP TEN;So;0;ON;;;;;N;;;;;
+1F520;INPUT SYMBOL FOR LATIN CAPITAL LETTERS;So;0;ON;;;;;N;;;;;
+1F521;INPUT SYMBOL FOR LATIN SMALL LETTERS;So;0;ON;;;;;N;;;;;
+1F522;INPUT SYMBOL FOR NUMBERS;So;0;ON;;;;;N;;;;;
+1F523;INPUT SYMBOL FOR SYMBOLS;So;0;ON;;;;;N;;;;;
+1F524;INPUT SYMBOL FOR LATIN LETTERS;So;0;ON;;;;;N;;;;;
+1F525;FIRE;So;0;ON;;;;;N;;;;;
+1F526;ELECTRIC TORCH;So;0;ON;;;;;N;;;;;
+1F527;WRENCH;So;0;ON;;;;;N;;;;;
+1F528;HAMMER;So;0;ON;;;;;N;;;;;
+1F529;NUT AND BOLT;So;0;ON;;;;;N;;;;;
+1F52A;HOCHO;So;0;ON;;;;;N;;;;;
+1F52B;PISTOL;So;0;ON;;;;;N;;;;;
+1F52C;MICROSCOPE;So;0;ON;;;;;N;;;;;
+1F52D;TELESCOPE;So;0;ON;;;;;N;;;;;
+1F52E;CRYSTAL BALL;So;0;ON;;;;;N;;;;;
+1F52F;SIX POINTED STAR WITH MIDDLE DOT;So;0;ON;;;;;N;;;;;
+1F530;JAPANESE SYMBOL FOR BEGINNER;So;0;ON;;;;;N;;;;;
+1F531;TRIDENT EMBLEM;So;0;ON;;;;;N;;;;;
+1F532;BLACK SQUARE BUTTON;So;0;ON;;;;;N;;;;;
+1F533;WHITE SQUARE BUTTON;So;0;ON;;;;;N;;;;;
+1F534;LARGE RED CIRCLE;So;0;ON;;;;;N;;;;;
+1F535;LARGE BLUE CIRCLE;So;0;ON;;;;;N;;;;;
+1F536;LARGE ORANGE DIAMOND;So;0;ON;;;;;N;;;;;
+1F537;LARGE BLUE DIAMOND;So;0;ON;;;;;N;;;;;
+1F538;SMALL ORANGE DIAMOND;So;0;ON;;;;;N;;;;;
+1F539;SMALL BLUE DIAMOND;So;0;ON;;;;;N;;;;;
+1F53A;UP-POINTING RED TRIANGLE;So;0;ON;;;;;N;;;;;
+1F53B;DOWN-POINTING RED TRIANGLE;So;0;ON;;;;;N;;;;;
+1F53C;UP-POINTING SMALL RED TRIANGLE;So;0;ON;;;;;N;;;;;
+1F53D;DOWN-POINTING SMALL RED TRIANGLE;So;0;ON;;;;;N;;;;;
+1F540;CIRCLED CROSS POMMEE;So;0;ON;;;;;N;;;;;
+1F541;CROSS POMMEE WITH HALF-CIRCLE BELOW;So;0;ON;;;;;N;;;;;
+1F542;CROSS POMMEE;So;0;ON;;;;;N;;;;;
+1F543;NOTCHED LEFT SEMICIRCLE WITH THREE DOTS;So;0;ON;;;;;N;;;;;
+1F550;CLOCK FACE ONE OCLOCK;So;0;ON;;;;;N;;;;;
+1F551;CLOCK FACE TWO OCLOCK;So;0;ON;;;;;N;;;;;
+1F552;CLOCK FACE THREE OCLOCK;So;0;ON;;;;;N;;;;;
+1F553;CLOCK FACE FOUR OCLOCK;So;0;ON;;;;;N;;;;;
+1F554;CLOCK FACE FIVE OCLOCK;So;0;ON;;;;;N;;;;;
+1F555;CLOCK FACE SIX OCLOCK;So;0;ON;;;;;N;;;;;
+1F556;CLOCK FACE SEVEN OCLOCK;So;0;ON;;;;;N;;;;;
+1F557;CLOCK FACE EIGHT OCLOCK;So;0;ON;;;;;N;;;;;
+1F558;CLOCK FACE NINE OCLOCK;So;0;ON;;;;;N;;;;;
+1F559;CLOCK FACE TEN OCLOCK;So;0;ON;;;;;N;;;;;
+1F55A;CLOCK FACE ELEVEN OCLOCK;So;0;ON;;;;;N;;;;;
+1F55B;CLOCK FACE TWELVE OCLOCK;So;0;ON;;;;;N;;;;;
+1F55C;CLOCK FACE ONE-THIRTY;So;0;ON;;;;;N;;;;;
+1F55D;CLOCK FACE TWO-THIRTY;So;0;ON;;;;;N;;;;;
+1F55E;CLOCK FACE THREE-THIRTY;So;0;ON;;;;;N;;;;;
+1F55F;CLOCK FACE FOUR-THIRTY;So;0;ON;;;;;N;;;;;
+1F560;CLOCK FACE FIVE-THIRTY;So;0;ON;;;;;N;;;;;
+1F561;CLOCK FACE SIX-THIRTY;So;0;ON;;;;;N;;;;;
+1F562;CLOCK FACE SEVEN-THIRTY;So;0;ON;;;;;N;;;;;
+1F563;CLOCK FACE EIGHT-THIRTY;So;0;ON;;;;;N;;;;;
+1F564;CLOCK FACE NINE-THIRTY;So;0;ON;;;;;N;;;;;
+1F565;CLOCK FACE TEN-THIRTY;So;0;ON;;;;;N;;;;;
+1F566;CLOCK FACE ELEVEN-THIRTY;So;0;ON;;;;;N;;;;;
+1F567;CLOCK FACE TWELVE-THIRTY;So;0;ON;;;;;N;;;;;
+1F5FB;MOUNT FUJI;So;0;ON;;;;;N;;;;;
+1F5FC;TOKYO TOWER;So;0;ON;;;;;N;;;;;
+1F5FD;STATUE OF LIBERTY;So;0;ON;;;;;N;;;;;
+1F5FE;SILHOUETTE OF JAPAN;So;0;ON;;;;;N;;;;;
+1F5FF;MOYAI;So;0;ON;;;;;N;;;;;
+1F600;GRINNING FACE;So;0;ON;;;;;N;;;;;
+1F601;GRINNING FACE WITH SMILING EYES;So;0;ON;;;;;N;;;;;
+1F602;FACE WITH TEARS OF JOY;So;0;ON;;;;;N;;;;;
+1F603;SMILING FACE WITH OPEN MOUTH;So;0;ON;;;;;N;;;;;
+1F604;SMILING FACE WITH OPEN MOUTH AND SMILING EYES;So;0;ON;;;;;N;;;;;
+1F605;SMILING FACE WITH OPEN MOUTH AND COLD SWEAT;So;0;ON;;;;;N;;;;;
+1F606;SMILING FACE WITH OPEN MOUTH AND TIGHTLY-CLOSED EYES;So;0;ON;;;;;N;;;;;
+1F607;SMILING FACE WITH HALO;So;0;ON;;;;;N;;;;;
+1F608;SMILING FACE WITH HORNS;So;0;ON;;;;;N;;;;;
+1F609;WINKING FACE;So;0;ON;;;;;N;;;;;
+1F60A;SMILING FACE WITH SMILING EYES;So;0;ON;;;;;N;;;;;
+1F60B;FACE SAVOURING DELICIOUS FOOD;So;0;ON;;;;;N;;;;;
+1F60C;RELIEVED FACE;So;0;ON;;;;;N;;;;;
+1F60D;SMILING FACE WITH HEART-SHAPED EYES;So;0;ON;;;;;N;;;;;
+1F60E;SMILING FACE WITH SUNGLASSES;So;0;ON;;;;;N;;;;;
+1F60F;SMIRKING FACE;So;0;ON;;;;;N;;;;;
+1F610;NEUTRAL FACE;So;0;ON;;;;;N;;;;;
+1F611;EXPRESSIONLESS FACE;So;0;ON;;;;;N;;;;;
+1F612;UNAMUSED FACE;So;0;ON;;;;;N;;;;;
+1F613;FACE WITH COLD SWEAT;So;0;ON;;;;;N;;;;;
+1F614;PENSIVE FACE;So;0;ON;;;;;N;;;;;
+1F615;CONFUSED FACE;So;0;ON;;;;;N;;;;;
+1F616;CONFOUNDED FACE;So;0;ON;;;;;N;;;;;
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+1F618;FACE THROWING A KISS;So;0;ON;;;;;N;;;;;
+1F619;KISSING FACE WITH SMILING EYES;So;0;ON;;;;;N;;;;;
+1F61A;KISSING FACE WITH CLOSED EYES;So;0;ON;;;;;N;;;;;
+1F61B;FACE WITH STUCK-OUT TONGUE;So;0;ON;;;;;N;;;;;
+1F61C;FACE WITH STUCK-OUT TONGUE AND WINKING EYE;So;0;ON;;;;;N;;;;;
+1F61D;FACE WITH STUCK-OUT TONGUE AND TIGHTLY-CLOSED EYES;So;0;ON;;;;;N;;;;;
+1F61E;DISAPPOINTED FACE;So;0;ON;;;;;N;;;;;
+1F61F;WORRIED FACE;So;0;ON;;;;;N;;;;;
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+1F621;POUTING FACE;So;0;ON;;;;;N;;;;;
+1F622;CRYING FACE;So;0;ON;;;;;N;;;;;
+1F623;PERSEVERING FACE;So;0;ON;;;;;N;;;;;
+1F624;FACE WITH LOOK OF TRIUMPH;So;0;ON;;;;;N;;;;;
+1F625;DISAPPOINTED BUT RELIEVED FACE;So;0;ON;;;;;N;;;;;
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+1F627;ANGUISHED FACE;So;0;ON;;;;;N;;;;;
+1F628;FEARFUL FACE;So;0;ON;;;;;N;;;;;
+1F629;WEARY FACE;So;0;ON;;;;;N;;;;;
+1F62A;SLEEPY FACE;So;0;ON;;;;;N;;;;;
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+1F62C;GRIMACING FACE;So;0;ON;;;;;N;;;;;
+1F62D;LOUDLY CRYING FACE;So;0;ON;;;;;N;;;;;
+1F62E;FACE WITH OPEN MOUTH;So;0;ON;;;;;N;;;;;
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+1F630;FACE WITH OPEN MOUTH AND COLD SWEAT;So;0;ON;;;;;N;;;;;
+1F631;FACE SCREAMING IN FEAR;So;0;ON;;;;;N;;;;;
+1F632;ASTONISHED FACE;So;0;ON;;;;;N;;;;;
+1F633;FLUSHED FACE;So;0;ON;;;;;N;;;;;
+1F634;SLEEPING FACE;So;0;ON;;;;;N;;;;;
+1F635;DIZZY FACE;So;0;ON;;;;;N;;;;;
+1F636;FACE WITHOUT MOUTH;So;0;ON;;;;;N;;;;;
+1F637;FACE WITH MEDICAL MASK;So;0;ON;;;;;N;;;;;
+1F638;GRINNING CAT FACE WITH SMILING EYES;So;0;ON;;;;;N;;;;;
+1F639;CAT FACE WITH TEARS OF JOY;So;0;ON;;;;;N;;;;;
+1F63A;SMILING CAT FACE WITH OPEN MOUTH;So;0;ON;;;;;N;;;;;
+1F63B;SMILING CAT FACE WITH HEART-SHAPED EYES;So;0;ON;;;;;N;;;;;
+1F63C;CAT FACE WITH WRY SMILE;So;0;ON;;;;;N;;;;;
+1F63D;KISSING CAT FACE WITH CLOSED EYES;So;0;ON;;;;;N;;;;;
+1F63E;POUTING CAT FACE;So;0;ON;;;;;N;;;;;
+1F63F;CRYING CAT FACE;So;0;ON;;;;;N;;;;;
+1F640;WEARY CAT FACE;So;0;ON;;;;;N;;;;;
+1F645;FACE WITH NO GOOD GESTURE;So;0;ON;;;;;N;;;;;
+1F646;FACE WITH OK GESTURE;So;0;ON;;;;;N;;;;;
+1F647;PERSON BOWING DEEPLY;So;0;ON;;;;;N;;;;;
+1F648;SEE-NO-EVIL MONKEY;So;0;ON;;;;;N;;;;;
+1F649;HEAR-NO-EVIL MONKEY;So;0;ON;;;;;N;;;;;
+1F64A;SPEAK-NO-EVIL MONKEY;So;0;ON;;;;;N;;;;;
+1F64B;HAPPY PERSON RAISING ONE HAND;So;0;ON;;;;;N;;;;;
+1F64C;PERSON RAISING BOTH HANDS IN CELEBRATION;So;0;ON;;;;;N;;;;;
+1F64D;PERSON FROWNING;So;0;ON;;;;;N;;;;;
+1F64E;PERSON WITH POUTING FACE;So;0;ON;;;;;N;;;;;
+1F64F;PERSON WITH FOLDED HANDS;So;0;ON;;;;;N;;;;;
+1F680;ROCKET;So;0;ON;;;;;N;;;;;
+1F681;HELICOPTER;So;0;ON;;;;;N;;;;;
+1F682;STEAM LOCOMOTIVE;So;0;ON;;;;;N;;;;;
+1F683;RAILWAY CAR;So;0;ON;;;;;N;;;;;
+1F684;HIGH-SPEED TRAIN;So;0;ON;;;;;N;;;;;
+1F685;HIGH-SPEED TRAIN WITH BULLET NOSE;So;0;ON;;;;;N;;;;;
+1F686;TRAIN;So;0;ON;;;;;N;;;;;
+1F687;METRO;So;0;ON;;;;;N;;;;;
+1F688;LIGHT RAIL;So;0;ON;;;;;N;;;;;
+1F689;STATION;So;0;ON;;;;;N;;;;;
+1F68A;TRAM;So;0;ON;;;;;N;;;;;
+1F68B;TRAM CAR;So;0;ON;;;;;N;;;;;
+1F68C;BUS;So;0;ON;;;;;N;;;;;
+1F68D;ONCOMING BUS;So;0;ON;;;;;N;;;;;
+1F68E;TROLLEYBUS;So;0;ON;;;;;N;;;;;
+1F68F;BUS STOP;So;0;ON;;;;;N;;;;;
+1F690;MINIBUS;So;0;ON;;;;;N;;;;;
+1F691;AMBULANCE;So;0;ON;;;;;N;;;;;
+1F692;FIRE ENGINE;So;0;ON;;;;;N;;;;;
+1F693;POLICE CAR;So;0;ON;;;;;N;;;;;
+1F694;ONCOMING POLICE CAR;So;0;ON;;;;;N;;;;;
+1F695;TAXI;So;0;ON;;;;;N;;;;;
+1F696;ONCOMING TAXI;So;0;ON;;;;;N;;;;;
+1F697;AUTOMOBILE;So;0;ON;;;;;N;;;;;
+1F698;ONCOMING AUTOMOBILE;So;0;ON;;;;;N;;;;;
+1F699;RECREATIONAL VEHICLE;So;0;ON;;;;;N;;;;;
+1F69A;DELIVERY TRUCK;So;0;ON;;;;;N;;;;;
+1F69B;ARTICULATED LORRY;So;0;ON;;;;;N;;;;;
+1F69C;TRACTOR;So;0;ON;;;;;N;;;;;
+1F69D;MONORAIL;So;0;ON;;;;;N;;;;;
+1F69E;MOUNTAIN RAILWAY;So;0;ON;;;;;N;;;;;
+1F69F;SUSPENSION RAILWAY;So;0;ON;;;;;N;;;;;
+1F6A0;MOUNTAIN CABLEWAY;So;0;ON;;;;;N;;;;;
+1F6A1;AERIAL TRAMWAY;So;0;ON;;;;;N;;;;;
+1F6A2;SHIP;So;0;ON;;;;;N;;;;;
+1F6A3;ROWBOAT;So;0;ON;;;;;N;;;;;
+1F6A4;SPEEDBOAT;So;0;ON;;;;;N;;;;;
+1F6A5;HORIZONTAL TRAFFIC LIGHT;So;0;ON;;;;;N;;;;;
+1F6A6;VERTICAL TRAFFIC LIGHT;So;0;ON;;;;;N;;;;;
+1F6A7;CONSTRUCTION SIGN;So;0;ON;;;;;N;;;;;
+1F6A8;POLICE CARS REVOLVING LIGHT;So;0;ON;;;;;N;;;;;
+1F6A9;TRIANGULAR FLAG ON POST;So;0;ON;;;;;N;;;;;
+1F6AA;DOOR;So;0;ON;;;;;N;;;;;
+1F6AB;NO ENTRY SIGN;So;0;ON;;;;;N;;;;;
+1F6AC;SMOKING SYMBOL;So;0;ON;;;;;N;;;;;
+1F6AD;NO SMOKING SYMBOL;So;0;ON;;;;;N;;;;;
+1F6AE;PUT LITTER IN ITS PLACE SYMBOL;So;0;ON;;;;;N;;;;;
+1F6AF;DO NOT LITTER SYMBOL;So;0;ON;;;;;N;;;;;
+1F6B0;POTABLE WATER SYMBOL;So;0;ON;;;;;N;;;;;
+1F6B1;NON-POTABLE WATER SYMBOL;So;0;ON;;;;;N;;;;;
+1F6B2;BICYCLE;So;0;ON;;;;;N;;;;;
+1F6B3;NO BICYCLES;So;0;ON;;;;;N;;;;;
+1F6B4;BICYCLIST;So;0;ON;;;;;N;;;;;
+1F6B5;MOUNTAIN BICYCLIST;So;0;ON;;;;;N;;;;;
+1F6B6;PEDESTRIAN;So;0;ON;;;;;N;;;;;
+1F6B7;NO PEDESTRIANS;So;0;ON;;;;;N;;;;;
+1F6B8;CHILDREN CROSSING;So;0;ON;;;;;N;;;;;
+1F6B9;MENS SYMBOL;So;0;ON;;;;;N;;;;;
+1F6BA;WOMENS SYMBOL;So;0;ON;;;;;N;;;;;
+1F6BB;RESTROOM;So;0;ON;;;;;N;;;;;
+1F6BC;BABY SYMBOL;So;0;ON;;;;;N;;;;;
+1F6BD;TOILET;So;0;ON;;;;;N;;;;;
+1F6BE;WATER CLOSET;So;0;ON;;;;;N;;;;;
+1F6BF;SHOWER;So;0;ON;;;;;N;;;;;
+1F6C0;BATH;So;0;ON;;;;;N;;;;;
+1F6C1;BATHTUB;So;0;ON;;;;;N;;;;;
+1F6C2;PASSPORT CONTROL;So;0;ON;;;;;N;;;;;
+1F6C3;CUSTOMS;So;0;ON;;;;;N;;;;;
+1F6C4;BAGGAGE CLAIM;So;0;ON;;;;;N;;;;;
+1F6C5;LEFT LUGGAGE;So;0;ON;;;;;N;;;;;
+1F700;ALCHEMICAL SYMBOL FOR QUINTESSENCE;So;0;ON;;;;;N;;;;;
+1F701;ALCHEMICAL SYMBOL FOR AIR;So;0;ON;;;;;N;;;;;
+1F702;ALCHEMICAL SYMBOL FOR FIRE;So;0;ON;;;;;N;;;;;
+1F703;ALCHEMICAL SYMBOL FOR EARTH;So;0;ON;;;;;N;;;;;
+1F704;ALCHEMICAL SYMBOL FOR WATER;So;0;ON;;;;;N;;;;;
+1F705;ALCHEMICAL SYMBOL FOR AQUAFORTIS;So;0;ON;;;;;N;;;;;
+1F706;ALCHEMICAL SYMBOL FOR AQUA REGIA;So;0;ON;;;;;N;;;;;
+1F707;ALCHEMICAL SYMBOL FOR AQUA REGIA-2;So;0;ON;;;;;N;;;;;
+1F708;ALCHEMICAL SYMBOL FOR AQUA VITAE;So;0;ON;;;;;N;;;;;
+1F709;ALCHEMICAL SYMBOL FOR AQUA VITAE-2;So;0;ON;;;;;N;;;;;
+1F70A;ALCHEMICAL SYMBOL FOR VINEGAR;So;0;ON;;;;;N;;;;;
+1F70B;ALCHEMICAL SYMBOL FOR VINEGAR-2;So;0;ON;;;;;N;;;;;
+1F70C;ALCHEMICAL SYMBOL FOR VINEGAR-3;So;0;ON;;;;;N;;;;;
+1F70D;ALCHEMICAL SYMBOL FOR SULFUR;So;0;ON;;;;;N;;;;;
+1F70E;ALCHEMICAL SYMBOL FOR PHILOSOPHERS SULFUR;So;0;ON;;;;;N;;;;;
+1F70F;ALCHEMICAL SYMBOL FOR BLACK SULFUR;So;0;ON;;;;;N;;;;;
+1F710;ALCHEMICAL SYMBOL FOR MERCURY SUBLIMATE;So;0;ON;;;;;N;;;;;
+1F711;ALCHEMICAL SYMBOL FOR MERCURY SUBLIMATE-2;So;0;ON;;;;;N;;;;;
+1F712;ALCHEMICAL SYMBOL FOR MERCURY SUBLIMATE-3;So;0;ON;;;;;N;;;;;
+1F713;ALCHEMICAL SYMBOL FOR CINNABAR;So;0;ON;;;;;N;;;;;
+1F714;ALCHEMICAL SYMBOL FOR SALT;So;0;ON;;;;;N;;;;;
+1F715;ALCHEMICAL SYMBOL FOR NITRE;So;0;ON;;;;;N;;;;;
+1F716;ALCHEMICAL SYMBOL FOR VITRIOL;So;0;ON;;;;;N;;;;;
+1F717;ALCHEMICAL SYMBOL FOR VITRIOL-2;So;0;ON;;;;;N;;;;;
+1F718;ALCHEMICAL SYMBOL FOR ROCK SALT;So;0;ON;;;;;N;;;;;
+1F719;ALCHEMICAL SYMBOL FOR ROCK SALT-2;So;0;ON;;;;;N;;;;;
+1F71A;ALCHEMICAL SYMBOL FOR GOLD;So;0;ON;;;;;N;;;;;
+1F71B;ALCHEMICAL SYMBOL FOR SILVER;So;0;ON;;;;;N;;;;;
+1F71C;ALCHEMICAL SYMBOL FOR IRON ORE;So;0;ON;;;;;N;;;;;
+1F71D;ALCHEMICAL SYMBOL FOR IRON ORE-2;So;0;ON;;;;;N;;;;;
+1F71E;ALCHEMICAL SYMBOL FOR CROCUS OF IRON;So;0;ON;;;;;N;;;;;
+1F71F;ALCHEMICAL SYMBOL FOR REGULUS OF IRON;So;0;ON;;;;;N;;;;;
+1F720;ALCHEMICAL SYMBOL FOR COPPER ORE;So;0;ON;;;;;N;;;;;
+1F721;ALCHEMICAL SYMBOL FOR IRON-COPPER ORE;So;0;ON;;;;;N;;;;;
+1F722;ALCHEMICAL SYMBOL FOR SUBLIMATE OF COPPER;So;0;ON;;;;;N;;;;;
+1F723;ALCHEMICAL SYMBOL FOR CROCUS OF COPPER;So;0;ON;;;;;N;;;;;
+1F724;ALCHEMICAL SYMBOL FOR CROCUS OF COPPER-2;So;0;ON;;;;;N;;;;;
+1F725;ALCHEMICAL SYMBOL FOR COPPER ANTIMONIATE;So;0;ON;;;;;N;;;;;
+1F726;ALCHEMICAL SYMBOL FOR SALT OF COPPER ANTIMONIATE;So;0;ON;;;;;N;;;;;
+1F727;ALCHEMICAL SYMBOL FOR SUBLIMATE OF SALT OF COPPER;So;0;ON;;;;;N;;;;;
+1F728;ALCHEMICAL SYMBOL FOR VERDIGRIS;So;0;ON;;;;;N;;;;;
+1F729;ALCHEMICAL SYMBOL FOR TIN ORE;So;0;ON;;;;;N;;;;;
+1F72A;ALCHEMICAL SYMBOL FOR LEAD ORE;So;0;ON;;;;;N;;;;;
+1F72B;ALCHEMICAL SYMBOL FOR ANTIMONY ORE;So;0;ON;;;;;N;;;;;
+1F72C;ALCHEMICAL SYMBOL FOR SUBLIMATE OF ANTIMONY;So;0;ON;;;;;N;;;;;
+1F72D;ALCHEMICAL SYMBOL FOR SALT OF ANTIMONY;So;0;ON;;;;;N;;;;;
+1F72E;ALCHEMICAL SYMBOL FOR SUBLIMATE OF SALT OF ANTIMONY;So;0;ON;;;;;N;;;;;
+1F72F;ALCHEMICAL SYMBOL FOR VINEGAR OF ANTIMONY;So;0;ON;;;;;N;;;;;
+1F730;ALCHEMICAL SYMBOL FOR REGULUS OF ANTIMONY;So;0;ON;;;;;N;;;;;
+1F731;ALCHEMICAL SYMBOL FOR REGULUS OF ANTIMONY-2;So;0;ON;;;;;N;;;;;
+1F732;ALCHEMICAL SYMBOL FOR REGULUS;So;0;ON;;;;;N;;;;;
+1F733;ALCHEMICAL SYMBOL FOR REGULUS-2;So;0;ON;;;;;N;;;;;
+1F734;ALCHEMICAL SYMBOL FOR REGULUS-3;So;0;ON;;;;;N;;;;;
+1F735;ALCHEMICAL SYMBOL FOR REGULUS-4;So;0;ON;;;;;N;;;;;
+1F736;ALCHEMICAL SYMBOL FOR ALKALI;So;0;ON;;;;;N;;;;;
+1F737;ALCHEMICAL SYMBOL FOR ALKALI-2;So;0;ON;;;;;N;;;;;
+1F738;ALCHEMICAL SYMBOL FOR MARCASITE;So;0;ON;;;;;N;;;;;
+1F739;ALCHEMICAL SYMBOL FOR SAL-AMMONIAC;So;0;ON;;;;;N;;;;;
+1F73A;ALCHEMICAL SYMBOL FOR ARSENIC;So;0;ON;;;;;N;;;;;
+1F73B;ALCHEMICAL SYMBOL FOR REALGAR;So;0;ON;;;;;N;;;;;
+1F73C;ALCHEMICAL SYMBOL FOR REALGAR-2;So;0;ON;;;;;N;;;;;
+1F73D;ALCHEMICAL SYMBOL FOR AURIPIGMENT;So;0;ON;;;;;N;;;;;
+1F73E;ALCHEMICAL SYMBOL FOR BISMUTH ORE;So;0;ON;;;;;N;;;;;
+1F73F;ALCHEMICAL SYMBOL FOR TARTAR;So;0;ON;;;;;N;;;;;
+1F740;ALCHEMICAL SYMBOL FOR TARTAR-2;So;0;ON;;;;;N;;;;;
+1F741;ALCHEMICAL SYMBOL FOR QUICK LIME;So;0;ON;;;;;N;;;;;
+1F742;ALCHEMICAL SYMBOL FOR BORAX;So;0;ON;;;;;N;;;;;
+1F743;ALCHEMICAL SYMBOL FOR BORAX-2;So;0;ON;;;;;N;;;;;
+1F744;ALCHEMICAL SYMBOL FOR BORAX-3;So;0;ON;;;;;N;;;;;
+1F745;ALCHEMICAL SYMBOL FOR ALUM;So;0;ON;;;;;N;;;;;
+1F746;ALCHEMICAL SYMBOL FOR OIL;So;0;ON;;;;;N;;;;;
+1F747;ALCHEMICAL SYMBOL FOR SPIRIT;So;0;ON;;;;;N;;;;;
+1F748;ALCHEMICAL SYMBOL FOR TINCTURE;So;0;ON;;;;;N;;;;;
+1F749;ALCHEMICAL SYMBOL FOR GUM;So;0;ON;;;;;N;;;;;
+1F74A;ALCHEMICAL SYMBOL FOR WAX;So;0;ON;;;;;N;;;;;
+1F74B;ALCHEMICAL SYMBOL FOR POWDER;So;0;ON;;;;;N;;;;;
+1F74C;ALCHEMICAL SYMBOL FOR CALX;So;0;ON;;;;;N;;;;;
+1F74D;ALCHEMICAL SYMBOL FOR TUTTY;So;0;ON;;;;;N;;;;;
+1F74E;ALCHEMICAL SYMBOL FOR CAPUT MORTUUM;So;0;ON;;;;;N;;;;;
+1F74F;ALCHEMICAL SYMBOL FOR SCEPTER OF JOVE;So;0;ON;;;;;N;;;;;
+1F750;ALCHEMICAL SYMBOL FOR CADUCEUS;So;0;ON;;;;;N;;;;;
+1F751;ALCHEMICAL SYMBOL FOR TRIDENT;So;0;ON;;;;;N;;;;;
+1F752;ALCHEMICAL SYMBOL FOR STARRED TRIDENT;So;0;ON;;;;;N;;;;;
+1F753;ALCHEMICAL SYMBOL FOR LODESTONE;So;0;ON;;;;;N;;;;;
+1F754;ALCHEMICAL SYMBOL FOR SOAP;So;0;ON;;;;;N;;;;;
+1F755;ALCHEMICAL SYMBOL FOR URINE;So;0;ON;;;;;N;;;;;
+1F756;ALCHEMICAL SYMBOL FOR HORSE DUNG;So;0;ON;;;;;N;;;;;
+1F757;ALCHEMICAL SYMBOL FOR ASHES;So;0;ON;;;;;N;;;;;
+1F758;ALCHEMICAL SYMBOL FOR POT ASHES;So;0;ON;;;;;N;;;;;
+1F759;ALCHEMICAL SYMBOL FOR BRICK;So;0;ON;;;;;N;;;;;
+1F75A;ALCHEMICAL SYMBOL FOR POWDERED BRICK;So;0;ON;;;;;N;;;;;
+1F75B;ALCHEMICAL SYMBOL FOR AMALGAM;So;0;ON;;;;;N;;;;;
+1F75C;ALCHEMICAL SYMBOL FOR STRATUM SUPER STRATUM;So;0;ON;;;;;N;;;;;
+1F75D;ALCHEMICAL SYMBOL FOR STRATUM SUPER STRATUM-2;So;0;ON;;;;;N;;;;;
+1F75E;ALCHEMICAL SYMBOL FOR SUBLIMATION;So;0;ON;;;;;N;;;;;
+1F75F;ALCHEMICAL SYMBOL FOR PRECIPITATE;So;0;ON;;;;;N;;;;;
+1F760;ALCHEMICAL SYMBOL FOR DISTILL;So;0;ON;;;;;N;;;;;
+1F761;ALCHEMICAL SYMBOL FOR DISSOLVE;So;0;ON;;;;;N;;;;;
+1F762;ALCHEMICAL SYMBOL FOR DISSOLVE-2;So;0;ON;;;;;N;;;;;
+1F763;ALCHEMICAL SYMBOL FOR PURIFY;So;0;ON;;;;;N;;;;;
+1F764;ALCHEMICAL SYMBOL FOR PUTREFACTION;So;0;ON;;;;;N;;;;;
+1F765;ALCHEMICAL SYMBOL FOR CRUCIBLE;So;0;ON;;;;;N;;;;;
+1F766;ALCHEMICAL SYMBOL FOR CRUCIBLE-2;So;0;ON;;;;;N;;;;;
+1F767;ALCHEMICAL SYMBOL FOR CRUCIBLE-3;So;0;ON;;;;;N;;;;;
+1F768;ALCHEMICAL SYMBOL FOR CRUCIBLE-4;So;0;ON;;;;;N;;;;;
+1F769;ALCHEMICAL SYMBOL FOR CRUCIBLE-5;So;0;ON;;;;;N;;;;;
+1F76A;ALCHEMICAL SYMBOL FOR ALEMBIC;So;0;ON;;;;;N;;;;;
+1F76B;ALCHEMICAL SYMBOL FOR BATH OF MARY;So;0;ON;;;;;N;;;;;
+1F76C;ALCHEMICAL SYMBOL FOR BATH OF VAPOURS;So;0;ON;;;;;N;;;;;
+1F76D;ALCHEMICAL SYMBOL FOR RETORT;So;0;ON;;;;;N;;;;;
+1F76E;ALCHEMICAL SYMBOL FOR HOUR;So;0;ON;;;;;N;;;;;
+1F76F;ALCHEMICAL SYMBOL FOR NIGHT;So;0;ON;;;;;N;;;;;
+1F770;ALCHEMICAL SYMBOL FOR DAY-NIGHT;So;0;ON;;;;;N;;;;;
+1F771;ALCHEMICAL SYMBOL FOR MONTH;So;0;ON;;;;;N;;;;;
+1F772;ALCHEMICAL SYMBOL FOR HALF DRAM;So;0;ON;;;;;N;;;;;
+1F773;ALCHEMICAL SYMBOL FOR HALF OUNCE;So;0;ON;;;;;N;;;;;
+20000;<CJK Ideograph Extension B, First>;Lo;0;L;;;;;N;;;;;
+2A6D6;<CJK Ideograph Extension B, Last>;Lo;0;L;;;;;N;;;;;
+2A700;<CJK Ideograph Extension C, First>;Lo;0;L;;;;;N;;;;;
+2B734;<CJK Ideograph Extension C, Last>;Lo;0;L;;;;;N;;;;;
+2B740;<CJK Ideograph Extension D, First>;Lo;0;L;;;;;N;;;;;
+2B81D;<CJK Ideograph Extension D, Last>;Lo;0;L;;;;;N;;;;;
+2F800;CJK COMPATIBILITY IDEOGRAPH-2F800;Lo;0;L;4E3D;;;;N;;;;;
+2F801;CJK COMPATIBILITY IDEOGRAPH-2F801;Lo;0;L;4E38;;;;N;;;;;
+2F802;CJK COMPATIBILITY IDEOGRAPH-2F802;Lo;0;L;4E41;;;;N;;;;;
+2F803;CJK COMPATIBILITY IDEOGRAPH-2F803;Lo;0;L;20122;;;;N;;;;;
+2F804;CJK COMPATIBILITY IDEOGRAPH-2F804;Lo;0;L;4F60;;;;N;;;;;
+2F805;CJK COMPATIBILITY IDEOGRAPH-2F805;Lo;0;L;4FAE;;;;N;;;;;
+2F806;CJK COMPATIBILITY IDEOGRAPH-2F806;Lo;0;L;4FBB;;;;N;;;;;
+2F807;CJK COMPATIBILITY IDEOGRAPH-2F807;Lo;0;L;5002;;;;N;;;;;
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+2F9D5;CJK COMPATIBILITY IDEOGRAPH-2F9D5;Lo;0;L;8CC1;;;;N;;;;;
+2F9D6;CJK COMPATIBILITY IDEOGRAPH-2F9D6;Lo;0;L;8D1B;;;;N;;;;;
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+2F9D9;CJK COMPATIBILITY IDEOGRAPH-2F9D9;Lo;0;L;20804;;;;N;;;;;
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+2F9DB;CJK COMPATIBILITY IDEOGRAPH-2F9DB;Lo;0;L;8DBC;;;;N;;;;;
+2F9DC;CJK COMPATIBILITY IDEOGRAPH-2F9DC;Lo;0;L;8DF0;;;;N;;;;;
+2F9DD;CJK COMPATIBILITY IDEOGRAPH-2F9DD;Lo;0;L;208DE;;;;N;;;;;
+2F9DE;CJK COMPATIBILITY IDEOGRAPH-2F9DE;Lo;0;L;8ED4;;;;N;;;;;
+2F9DF;CJK COMPATIBILITY IDEOGRAPH-2F9DF;Lo;0;L;8F38;;;;N;;;;;
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+2F9EC;CJK COMPATIBILITY IDEOGRAPH-2F9EC;Lo;0;L;9415;;;;N;;;;;
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+2F9EE;CJK COMPATIBILITY IDEOGRAPH-2F9EE;Lo;0;L;958B;;;;N;;;;;
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+2F9FD;CJK COMPATIBILITY IDEOGRAPH-2F9FD;Lo;0;L;29496;;;;N;;;;;
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+E0001;LANGUAGE TAG;Cf;0;BN;;;;;N;;;;;
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+E0100;VARIATION SELECTOR-17;Mn;0;NSM;;;;;N;;;;;
+E0101;VARIATION SELECTOR-18;Mn;0;NSM;;;;;N;;;;;
+E0102;VARIATION SELECTOR-19;Mn;0;NSM;;;;;N;;;;;
+E0103;VARIATION SELECTOR-20;Mn;0;NSM;;;;;N;;;;;
+E0104;VARIATION SELECTOR-21;Mn;0;NSM;;;;;N;;;;;
+E0105;VARIATION SELECTOR-22;Mn;0;NSM;;;;;N;;;;;
+E0106;VARIATION SELECTOR-23;Mn;0;NSM;;;;;N;;;;;
+E0107;VARIATION SELECTOR-24;Mn;0;NSM;;;;;N;;;;;
+E0108;VARIATION SELECTOR-25;Mn;0;NSM;;;;;N;;;;;
+E0109;VARIATION SELECTOR-26;Mn;0;NSM;;;;;N;;;;;
+E010A;VARIATION SELECTOR-27;Mn;0;NSM;;;;;N;;;;;
+E010B;VARIATION SELECTOR-28;Mn;0;NSM;;;;;N;;;;;
+E010C;VARIATION SELECTOR-29;Mn;0;NSM;;;;;N;;;;;
+E010D;VARIATION SELECTOR-30;Mn;0;NSM;;;;;N;;;;;
+E010E;VARIATION SELECTOR-31;Mn;0;NSM;;;;;N;;;;;
+E010F;VARIATION SELECTOR-32;Mn;0;NSM;;;;;N;;;;;
+E0110;VARIATION SELECTOR-33;Mn;0;NSM;;;;;N;;;;;
+E0111;VARIATION SELECTOR-34;Mn;0;NSM;;;;;N;;;;;
+E0112;VARIATION SELECTOR-35;Mn;0;NSM;;;;;N;;;;;
+E0113;VARIATION SELECTOR-36;Mn;0;NSM;;;;;N;;;;;
+E0114;VARIATION SELECTOR-37;Mn;0;NSM;;;;;N;;;;;
+E0115;VARIATION SELECTOR-38;Mn;0;NSM;;;;;N;;;;;
+E0116;VARIATION SELECTOR-39;Mn;0;NSM;;;;;N;;;;;
+E0117;VARIATION SELECTOR-40;Mn;0;NSM;;;;;N;;;;;
+E0118;VARIATION SELECTOR-41;Mn;0;NSM;;;;;N;;;;;
+E0119;VARIATION SELECTOR-42;Mn;0;NSM;;;;;N;;;;;
+E011A;VARIATION SELECTOR-43;Mn;0;NSM;;;;;N;;;;;
+E011B;VARIATION SELECTOR-44;Mn;0;NSM;;;;;N;;;;;
+E011C;VARIATION SELECTOR-45;Mn;0;NSM;;;;;N;;;;;
+E011D;VARIATION SELECTOR-46;Mn;0;NSM;;;;;N;;;;;
+E011E;VARIATION SELECTOR-47;Mn;0;NSM;;;;;N;;;;;
+E011F;VARIATION SELECTOR-48;Mn;0;NSM;;;;;N;;;;;
+E0120;VARIATION SELECTOR-49;Mn;0;NSM;;;;;N;;;;;
+E0121;VARIATION SELECTOR-50;Mn;0;NSM;;;;;N;;;;;
+E0122;VARIATION SELECTOR-51;Mn;0;NSM;;;;;N;;;;;
+E0123;VARIATION SELECTOR-52;Mn;0;NSM;;;;;N;;;;;
+E0124;VARIATION SELECTOR-53;Mn;0;NSM;;;;;N;;;;;
+E0125;VARIATION SELECTOR-54;Mn;0;NSM;;;;;N;;;;;
+E0126;VARIATION SELECTOR-55;Mn;0;NSM;;;;;N;;;;;
+E0127;VARIATION SELECTOR-56;Mn;0;NSM;;;;;N;;;;;
+E0128;VARIATION SELECTOR-57;Mn;0;NSM;;;;;N;;;;;
+E0129;VARIATION SELECTOR-58;Mn;0;NSM;;;;;N;;;;;
+E012A;VARIATION SELECTOR-59;Mn;0;NSM;;;;;N;;;;;
+E012B;VARIATION SELECTOR-60;Mn;0;NSM;;;;;N;;;;;
+E012C;VARIATION SELECTOR-61;Mn;0;NSM;;;;;N;;;;;
+E012D;VARIATION SELECTOR-62;Mn;0;NSM;;;;;N;;;;;
+E012E;VARIATION SELECTOR-63;Mn;0;NSM;;;;;N;;;;;
+E012F;VARIATION SELECTOR-64;Mn;0;NSM;;;;;N;;;;;
+E0130;VARIATION SELECTOR-65;Mn;0;NSM;;;;;N;;;;;
+E0131;VARIATION SELECTOR-66;Mn;0;NSM;;;;;N;;;;;
+E0132;VARIATION SELECTOR-67;Mn;0;NSM;;;;;N;;;;;
+E0133;VARIATION SELECTOR-68;Mn;0;NSM;;;;;N;;;;;
+E0134;VARIATION SELECTOR-69;Mn;0;NSM;;;;;N;;;;;
+E0135;VARIATION SELECTOR-70;Mn;0;NSM;;;;;N;;;;;
+E0136;VARIATION SELECTOR-71;Mn;0;NSM;;;;;N;;;;;
+E0137;VARIATION SELECTOR-72;Mn;0;NSM;;;;;N;;;;;
+E0138;VARIATION SELECTOR-73;Mn;0;NSM;;;;;N;;;;;
+E0139;VARIATION SELECTOR-74;Mn;0;NSM;;;;;N;;;;;
+E013A;VARIATION SELECTOR-75;Mn;0;NSM;;;;;N;;;;;
+E013B;VARIATION SELECTOR-76;Mn;0;NSM;;;;;N;;;;;
+E013C;VARIATION SELECTOR-77;Mn;0;NSM;;;;;N;;;;;
+E013D;VARIATION SELECTOR-78;Mn;0;NSM;;;;;N;;;;;
+E013E;VARIATION SELECTOR-79;Mn;0;NSM;;;;;N;;;;;
+E013F;VARIATION SELECTOR-80;Mn;0;NSM;;;;;N;;;;;
+E0140;VARIATION SELECTOR-81;Mn;0;NSM;;;;;N;;;;;
+E0141;VARIATION SELECTOR-82;Mn;0;NSM;;;;;N;;;;;
+E0142;VARIATION SELECTOR-83;Mn;0;NSM;;;;;N;;;;;
+E0143;VARIATION SELECTOR-84;Mn;0;NSM;;;;;N;;;;;
+E0144;VARIATION SELECTOR-85;Mn;0;NSM;;;;;N;;;;;
+E0145;VARIATION SELECTOR-86;Mn;0;NSM;;;;;N;;;;;
+E0146;VARIATION SELECTOR-87;Mn;0;NSM;;;;;N;;;;;
+E0147;VARIATION SELECTOR-88;Mn;0;NSM;;;;;N;;;;;
+E0148;VARIATION SELECTOR-89;Mn;0;NSM;;;;;N;;;;;
+E0149;VARIATION SELECTOR-90;Mn;0;NSM;;;;;N;;;;;
+E014A;VARIATION SELECTOR-91;Mn;0;NSM;;;;;N;;;;;
+E014B;VARIATION SELECTOR-92;Mn;0;NSM;;;;;N;;;;;
+E014C;VARIATION SELECTOR-93;Mn;0;NSM;;;;;N;;;;;
+E014D;VARIATION SELECTOR-94;Mn;0;NSM;;;;;N;;;;;
+E014E;VARIATION SELECTOR-95;Mn;0;NSM;;;;;N;;;;;
+E014F;VARIATION SELECTOR-96;Mn;0;NSM;;;;;N;;;;;
+E0150;VARIATION SELECTOR-97;Mn;0;NSM;;;;;N;;;;;
+E0151;VARIATION SELECTOR-98;Mn;0;NSM;;;;;N;;;;;
+E0152;VARIATION SELECTOR-99;Mn;0;NSM;;;;;N;;;;;
+E0153;VARIATION SELECTOR-100;Mn;0;NSM;;;;;N;;;;;
+E0154;VARIATION SELECTOR-101;Mn;0;NSM;;;;;N;;;;;
+E0155;VARIATION SELECTOR-102;Mn;0;NSM;;;;;N;;;;;
+E0156;VARIATION SELECTOR-103;Mn;0;NSM;;;;;N;;;;;
+E0157;VARIATION SELECTOR-104;Mn;0;NSM;;;;;N;;;;;
+E0158;VARIATION SELECTOR-105;Mn;0;NSM;;;;;N;;;;;
+E0159;VARIATION SELECTOR-106;Mn;0;NSM;;;;;N;;;;;
+E015A;VARIATION SELECTOR-107;Mn;0;NSM;;;;;N;;;;;
+E015B;VARIATION SELECTOR-108;Mn;0;NSM;;;;;N;;;;;
+E015C;VARIATION SELECTOR-109;Mn;0;NSM;;;;;N;;;;;
+E015D;VARIATION SELECTOR-110;Mn;0;NSM;;;;;N;;;;;
+E015E;VARIATION SELECTOR-111;Mn;0;NSM;;;;;N;;;;;
+E015F;VARIATION SELECTOR-112;Mn;0;NSM;;;;;N;;;;;
+E0160;VARIATION SELECTOR-113;Mn;0;NSM;;;;;N;;;;;
+E0161;VARIATION SELECTOR-114;Mn;0;NSM;;;;;N;;;;;
+E0162;VARIATION SELECTOR-115;Mn;0;NSM;;;;;N;;;;;
+E0163;VARIATION SELECTOR-116;Mn;0;NSM;;;;;N;;;;;
+E0164;VARIATION SELECTOR-117;Mn;0;NSM;;;;;N;;;;;
+E0165;VARIATION SELECTOR-118;Mn;0;NSM;;;;;N;;;;;
+E0166;VARIATION SELECTOR-119;Mn;0;NSM;;;;;N;;;;;
+E0167;VARIATION SELECTOR-120;Mn;0;NSM;;;;;N;;;;;
+E0168;VARIATION SELECTOR-121;Mn;0;NSM;;;;;N;;;;;
+E0169;VARIATION SELECTOR-122;Mn;0;NSM;;;;;N;;;;;
+E016A;VARIATION SELECTOR-123;Mn;0;NSM;;;;;N;;;;;
+E016B;VARIATION SELECTOR-124;Mn;0;NSM;;;;;N;;;;;
+E016C;VARIATION SELECTOR-125;Mn;0;NSM;;;;;N;;;;;
+E016D;VARIATION SELECTOR-126;Mn;0;NSM;;;;;N;;;;;
+E016E;VARIATION SELECTOR-127;Mn;0;NSM;;;;;N;;;;;
+E016F;VARIATION SELECTOR-128;Mn;0;NSM;;;;;N;;;;;
+E0170;VARIATION SELECTOR-129;Mn;0;NSM;;;;;N;;;;;
+E0171;VARIATION SELECTOR-130;Mn;0;NSM;;;;;N;;;;;
+E0172;VARIATION SELECTOR-131;Mn;0;NSM;;;;;N;;;;;
+E0173;VARIATION SELECTOR-132;Mn;0;NSM;;;;;N;;;;;
+E0174;VARIATION SELECTOR-133;Mn;0;NSM;;;;;N;;;;;
+E0175;VARIATION SELECTOR-134;Mn;0;NSM;;;;;N;;;;;
+E0176;VARIATION SELECTOR-135;Mn;0;NSM;;;;;N;;;;;
+E0177;VARIATION SELECTOR-136;Mn;0;NSM;;;;;N;;;;;
+E0178;VARIATION SELECTOR-137;Mn;0;NSM;;;;;N;;;;;
+E0179;VARIATION SELECTOR-138;Mn;0;NSM;;;;;N;;;;;
+E017A;VARIATION SELECTOR-139;Mn;0;NSM;;;;;N;;;;;
+E017B;VARIATION SELECTOR-140;Mn;0;NSM;;;;;N;;;;;
+E017C;VARIATION SELECTOR-141;Mn;0;NSM;;;;;N;;;;;
+E017D;VARIATION SELECTOR-142;Mn;0;NSM;;;;;N;;;;;
+E017E;VARIATION SELECTOR-143;Mn;0;NSM;;;;;N;;;;;
+E017F;VARIATION SELECTOR-144;Mn;0;NSM;;;;;N;;;;;
+E0180;VARIATION SELECTOR-145;Mn;0;NSM;;;;;N;;;;;
+E0181;VARIATION SELECTOR-146;Mn;0;NSM;;;;;N;;;;;
+E0182;VARIATION SELECTOR-147;Mn;0;NSM;;;;;N;;;;;
+E0183;VARIATION SELECTOR-148;Mn;0;NSM;;;;;N;;;;;
+E0184;VARIATION SELECTOR-149;Mn;0;NSM;;;;;N;;;;;
+E0185;VARIATION SELECTOR-150;Mn;0;NSM;;;;;N;;;;;
+E0186;VARIATION SELECTOR-151;Mn;0;NSM;;;;;N;;;;;
+E0187;VARIATION SELECTOR-152;Mn;0;NSM;;;;;N;;;;;
+E0188;VARIATION SELECTOR-153;Mn;0;NSM;;;;;N;;;;;
+E0189;VARIATION SELECTOR-154;Mn;0;NSM;;;;;N;;;;;
+E018A;VARIATION SELECTOR-155;Mn;0;NSM;;;;;N;;;;;
+E018B;VARIATION SELECTOR-156;Mn;0;NSM;;;;;N;;;;;
+E018C;VARIATION SELECTOR-157;Mn;0;NSM;;;;;N;;;;;
+E018D;VARIATION SELECTOR-158;Mn;0;NSM;;;;;N;;;;;
+E018E;VARIATION SELECTOR-159;Mn;0;NSM;;;;;N;;;;;
+E018F;VARIATION SELECTOR-160;Mn;0;NSM;;;;;N;;;;;
+E0190;VARIATION SELECTOR-161;Mn;0;NSM;;;;;N;;;;;
+E0191;VARIATION SELECTOR-162;Mn;0;NSM;;;;;N;;;;;
+E0192;VARIATION SELECTOR-163;Mn;0;NSM;;;;;N;;;;;
+E0193;VARIATION SELECTOR-164;Mn;0;NSM;;;;;N;;;;;
+E0194;VARIATION SELECTOR-165;Mn;0;NSM;;;;;N;;;;;
+E0195;VARIATION SELECTOR-166;Mn;0;NSM;;;;;N;;;;;
+E0196;VARIATION SELECTOR-167;Mn;0;NSM;;;;;N;;;;;
+E0197;VARIATION SELECTOR-168;Mn;0;NSM;;;;;N;;;;;
+E0198;VARIATION SELECTOR-169;Mn;0;NSM;;;;;N;;;;;
+E0199;VARIATION SELECTOR-170;Mn;0;NSM;;;;;N;;;;;
+E019A;VARIATION SELECTOR-171;Mn;0;NSM;;;;;N;;;;;
+E019B;VARIATION SELECTOR-172;Mn;0;NSM;;;;;N;;;;;
+E019C;VARIATION SELECTOR-173;Mn;0;NSM;;;;;N;;;;;
+E019D;VARIATION SELECTOR-174;Mn;0;NSM;;;;;N;;;;;
+E019E;VARIATION SELECTOR-175;Mn;0;NSM;;;;;N;;;;;
+E019F;VARIATION SELECTOR-176;Mn;0;NSM;;;;;N;;;;;
+E01A0;VARIATION SELECTOR-177;Mn;0;NSM;;;;;N;;;;;
+E01A1;VARIATION SELECTOR-178;Mn;0;NSM;;;;;N;;;;;
+E01A2;VARIATION SELECTOR-179;Mn;0;NSM;;;;;N;;;;;
+E01A3;VARIATION SELECTOR-180;Mn;0;NSM;;;;;N;;;;;
+E01A4;VARIATION SELECTOR-181;Mn;0;NSM;;;;;N;;;;;
+E01A5;VARIATION SELECTOR-182;Mn;0;NSM;;;;;N;;;;;
+E01A6;VARIATION SELECTOR-183;Mn;0;NSM;;;;;N;;;;;
+E01A7;VARIATION SELECTOR-184;Mn;0;NSM;;;;;N;;;;;
+E01A8;VARIATION SELECTOR-185;Mn;0;NSM;;;;;N;;;;;
+E01A9;VARIATION SELECTOR-186;Mn;0;NSM;;;;;N;;;;;
+E01AA;VARIATION SELECTOR-187;Mn;0;NSM;;;;;N;;;;;
+E01AB;VARIATION SELECTOR-188;Mn;0;NSM;;;;;N;;;;;
+E01AC;VARIATION SELECTOR-189;Mn;0;NSM;;;;;N;;;;;
+E01AD;VARIATION SELECTOR-190;Mn;0;NSM;;;;;N;;;;;
+E01AE;VARIATION SELECTOR-191;Mn;0;NSM;;;;;N;;;;;
+E01AF;VARIATION SELECTOR-192;Mn;0;NSM;;;;;N;;;;;
+E01B0;VARIATION SELECTOR-193;Mn;0;NSM;;;;;N;;;;;
+E01B1;VARIATION SELECTOR-194;Mn;0;NSM;;;;;N;;;;;
+E01B2;VARIATION SELECTOR-195;Mn;0;NSM;;;;;N;;;;;
+E01B3;VARIATION SELECTOR-196;Mn;0;NSM;;;;;N;;;;;
+E01B4;VARIATION SELECTOR-197;Mn;0;NSM;;;;;N;;;;;
+E01B5;VARIATION SELECTOR-198;Mn;0;NSM;;;;;N;;;;;
+E01B6;VARIATION SELECTOR-199;Mn;0;NSM;;;;;N;;;;;
+E01B7;VARIATION SELECTOR-200;Mn;0;NSM;;;;;N;;;;;
+E01B8;VARIATION SELECTOR-201;Mn;0;NSM;;;;;N;;;;;
+E01B9;VARIATION SELECTOR-202;Mn;0;NSM;;;;;N;;;;;
+E01BA;VARIATION SELECTOR-203;Mn;0;NSM;;;;;N;;;;;
+E01BB;VARIATION SELECTOR-204;Mn;0;NSM;;;;;N;;;;;
+E01BC;VARIATION SELECTOR-205;Mn;0;NSM;;;;;N;;;;;
+E01BD;VARIATION SELECTOR-206;Mn;0;NSM;;;;;N;;;;;
+E01BE;VARIATION SELECTOR-207;Mn;0;NSM;;;;;N;;;;;
+E01BF;VARIATION SELECTOR-208;Mn;0;NSM;;;;;N;;;;;
+E01C0;VARIATION SELECTOR-209;Mn;0;NSM;;;;;N;;;;;
+E01C1;VARIATION SELECTOR-210;Mn;0;NSM;;;;;N;;;;;
+E01C2;VARIATION SELECTOR-211;Mn;0;NSM;;;;;N;;;;;
+E01C3;VARIATION SELECTOR-212;Mn;0;NSM;;;;;N;;;;;
+E01C4;VARIATION SELECTOR-213;Mn;0;NSM;;;;;N;;;;;
+E01C5;VARIATION SELECTOR-214;Mn;0;NSM;;;;;N;;;;;
+E01C6;VARIATION SELECTOR-215;Mn;0;NSM;;;;;N;;;;;
+E01C7;VARIATION SELECTOR-216;Mn;0;NSM;;;;;N;;;;;
+E01C8;VARIATION SELECTOR-217;Mn;0;NSM;;;;;N;;;;;
+E01C9;VARIATION SELECTOR-218;Mn;0;NSM;;;;;N;;;;;
+E01CA;VARIATION SELECTOR-219;Mn;0;NSM;;;;;N;;;;;
+E01CB;VARIATION SELECTOR-220;Mn;0;NSM;;;;;N;;;;;
+E01CC;VARIATION SELECTOR-221;Mn;0;NSM;;;;;N;;;;;
+E01CD;VARIATION SELECTOR-222;Mn;0;NSM;;;;;N;;;;;
+E01CE;VARIATION SELECTOR-223;Mn;0;NSM;;;;;N;;;;;
+E01CF;VARIATION SELECTOR-224;Mn;0;NSM;;;;;N;;;;;
+E01D0;VARIATION SELECTOR-225;Mn;0;NSM;;;;;N;;;;;
+E01D1;VARIATION SELECTOR-226;Mn;0;NSM;;;;;N;;;;;
+E01D2;VARIATION SELECTOR-227;Mn;0;NSM;;;;;N;;;;;
+E01D3;VARIATION SELECTOR-228;Mn;0;NSM;;;;;N;;;;;
+E01D4;VARIATION SELECTOR-229;Mn;0;NSM;;;;;N;;;;;
+E01D5;VARIATION SELECTOR-230;Mn;0;NSM;;;;;N;;;;;
+E01D6;VARIATION SELECTOR-231;Mn;0;NSM;;;;;N;;;;;
+E01D7;VARIATION SELECTOR-232;Mn;0;NSM;;;;;N;;;;;
+E01D8;VARIATION SELECTOR-233;Mn;0;NSM;;;;;N;;;;;
+E01D9;VARIATION SELECTOR-234;Mn;0;NSM;;;;;N;;;;;
+E01DA;VARIATION SELECTOR-235;Mn;0;NSM;;;;;N;;;;;
+E01DB;VARIATION SELECTOR-236;Mn;0;NSM;;;;;N;;;;;
+E01DC;VARIATION SELECTOR-237;Mn;0;NSM;;;;;N;;;;;
+E01DD;VARIATION SELECTOR-238;Mn;0;NSM;;;;;N;;;;;
+E01DE;VARIATION SELECTOR-239;Mn;0;NSM;;;;;N;;;;;
+E01DF;VARIATION SELECTOR-240;Mn;0;NSM;;;;;N;;;;;
+E01E0;VARIATION SELECTOR-241;Mn;0;NSM;;;;;N;;;;;
+E01E1;VARIATION SELECTOR-242;Mn;0;NSM;;;;;N;;;;;
+E01E2;VARIATION SELECTOR-243;Mn;0;NSM;;;;;N;;;;;
+E01E3;VARIATION SELECTOR-244;Mn;0;NSM;;;;;N;;;;;
+E01E4;VARIATION SELECTOR-245;Mn;0;NSM;;;;;N;;;;;
+E01E5;VARIATION SELECTOR-246;Mn;0;NSM;;;;;N;;;;;
+E01E6;VARIATION SELECTOR-247;Mn;0;NSM;;;;;N;;;;;
+E01E7;VARIATION SELECTOR-248;Mn;0;NSM;;;;;N;;;;;
+E01E8;VARIATION SELECTOR-249;Mn;0;NSM;;;;;N;;;;;
+E01E9;VARIATION SELECTOR-250;Mn;0;NSM;;;;;N;;;;;
+E01EA;VARIATION SELECTOR-251;Mn;0;NSM;;;;;N;;;;;
+E01EB;VARIATION SELECTOR-252;Mn;0;NSM;;;;;N;;;;;
+E01EC;VARIATION SELECTOR-253;Mn;0;NSM;;;;;N;;;;;
+E01ED;VARIATION SELECTOR-254;Mn;0;NSM;;;;;N;;;;;
+E01EE;VARIATION SELECTOR-255;Mn;0;NSM;;;;;N;;;;;
+E01EF;VARIATION SELECTOR-256;Mn;0;NSM;;;;;N;;;;;
+F0000;<Plane 15 Private Use, First>;Co;0;L;;;;;N;;;;;
+FFFFD;<Plane 15 Private Use, Last>;Co;0;L;;;;;N;;;;;
+100000;<Plane 16 Private Use, First>;Co;0;L;;;;;N;;;;;
+10FFFD;<Plane 16 Private Use, Last>;Co;0;L;;;;;N;;;;;
diff --git a/ext/fts3/unicode/mkunicode.tcl b/ext/fts3/unicode/mkunicode.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..1306629da82a51dd6cee23512e6c33113294f67b
--- /dev/null
+++ b/ext/fts3/unicode/mkunicode.tcl
@@ -0,0 +1,987 @@
+
+source [file join [file dirname [info script]] parseunicode.tcl]
+
+proc print_rd {map} {
+  global tl_lookup_table
+  set aChar [list]
+  set lRange [list]
+
+  set nRange 1
+  set iFirst  [lindex $map 0 0]
+  set cPrev   [lindex $map 0 1]
+  set fPrev   [lindex $map 0 2]
+
+  foreach m [lrange $map 1 end] {
+    foreach {i c f} $m {}
+
+    if {$cPrev == $c && $fPrev==$f} {
+      for {set j [expr $iFirst+$nRange]} {$j<$i} {incr j} {
+        if {[info exists tl_lookup_table($j)]==0} break
+      }
+
+      if {$j==$i} {
+        set nNew [expr {(1 + $i - $iFirst)}]
+        if {$nNew<=8} {
+          set nRange $nNew
+          continue
+        }
+      }
+    }
+
+    lappend lRange [list $iFirst $nRange]
+    lappend aChar  $cPrev
+    lappend aFlag  $fPrev
+
+    set iFirst $i
+    set cPrev  $c
+    set fPrev  $f
+    set nRange 1
+  }
+  lappend lRange [list $iFirst $nRange]
+  lappend aChar $cPrev
+  lappend aFlag $fPrev
+
+  puts "/*"
+  puts "** If the argument is a codepoint corresponding to a lowercase letter"
+  puts "** in the ASCII range with a diacritic added, return the codepoint"
+  puts "** of the ASCII letter only. For example, if passed 235 - \"LATIN"
+  puts "** SMALL LETTER E WITH DIAERESIS\" - return 65 (\"LATIN SMALL LETTER"
+  puts "** E\"). The resuls of passing a codepoint that corresponds to an"
+  puts "** uppercase letter are undefined."
+  puts "*/"
+  puts "static int ${::remove_diacritic}(int c, int bComplex)\{"
+  puts "  unsigned short aDia\[\] = \{"
+  puts -nonewline "        0, "
+  set i 1
+  foreach r $lRange {
+    foreach {iCode nRange} $r {}
+    if {($i % 8)==0} {puts "" ; puts -nonewline "    " }
+    incr i
+
+    puts -nonewline [format "%5d" [expr ($iCode<<3) + $nRange-1]]
+    puts -nonewline ", "
+  }
+  puts ""
+  puts "  \};"
+  puts "#define HIBIT ((unsigned char)0x80)"
+  puts "  unsigned char aChar\[\] = \{"
+  puts -nonewline "    '\\0',      "
+  set i 1
+  foreach c $aChar f $aFlag {
+    if { $f } {
+      set str "'$c'|HIBIT, "
+    } else {
+      set str "'$c',       "
+    }
+    if {$c == ""} { set str "'\\0',      " }
+
+    if {($i % 6)==0} {puts "" ; puts -nonewline "    " }
+    incr i
+    puts -nonewline "$str"
+  }
+  puts ""
+  puts "  \};"
+  puts {
+  unsigned int key = (((unsigned int)c)<<3) | 0x00000007;
+  int iRes = 0;
+  int iHi = sizeof(aDia)/sizeof(aDia[0]) - 1;
+  int iLo = 0;
+  while( iHi>=iLo ){
+    int iTest = (iHi + iLo) / 2;
+    if( key >= aDia[iTest] ){
+      iRes = iTest;
+      iLo = iTest+1;
+    }else{
+      iHi = iTest-1;
+    }
+  }
+  assert( key>=aDia[iRes] );
+  if( bComplex==0 && (aChar[iRes] & 0x80) ) return c;
+  return (c > (aDia[iRes]>>3) + (aDia[iRes]&0x07)) ? c : ((int)aChar[iRes] & 0x7F);}
+  puts "\}"
+}
+
+proc print_isdiacritic {zFunc map} {
+
+  set lCode [list]
+  foreach m $map {
+    foreach {code char flag} $m {}
+    if {$flag} continue
+    if {$code && $char == ""} { lappend lCode $code }
+  }
+  set lCode [lsort -integer $lCode]
+  set iFirst [lindex $lCode 0]
+  set iLast [lindex $lCode end]
+
+  set i1 0
+  set i2 0
+
+  foreach c $lCode {
+    set i [expr $c - $iFirst]
+    if {$i < 32} {
+      set i1 [expr {$i1 | (1<<$i)}]
+    } else {
+      set i2 [expr {$i2 | (1<<($i-32))}]
+    }
+  }
+
+  puts "/*"
+  puts "** Return true if the argument interpreted as a unicode codepoint" 
+  puts "** is a diacritical modifier character."
+  puts "*/"
+  puts "int ${zFunc}\(int c)\{"
+  puts "  unsigned int mask0 = [format "0x%08X" $i1];"
+  puts "  unsigned int mask1 = [format "0x%08X" $i2];"
+
+  puts "  if( c<$iFirst || c>$iLast ) return 0;"
+  puts "  return (c < $iFirst+32) ?"
+  puts "      (mask0 & ((unsigned int)1 << (c-$iFirst))) :"
+  puts "      (mask1 & ((unsigned int)1 << (c-$iFirst-32)));"
+  puts "\}"
+}
+
+
+#-------------------------------------------------------------------------
+
+proc an_load_separator_ranges {} {
+  global unicodedata.txt
+  set lSep [an_load_unicodedata_text ${unicodedata.txt}]
+  unset -nocomplain iFirst 
+  unset -nocomplain nRange 
+  set lRange [list]
+  foreach sep $lSep {
+    if {0==[info exists iFirst]} {
+      set iFirst $sep
+      set nRange 1
+    } elseif { $sep == ($iFirst+$nRange) } {
+      incr nRange
+    } else {
+      lappend lRange [list $iFirst $nRange]
+      set iFirst $sep
+      set nRange 1
+    }
+  } 
+  lappend lRange [list $iFirst $nRange]
+  set lRange
+}
+
+proc an_print_range_array {lRange} {
+  set iFirstMax 0
+  set nRangeMax 0
+  foreach range $lRange {
+    foreach {iFirst nRange} $range {}
+    if {$iFirst > $iFirstMax} {set iFirstMax $iFirst}
+    if {$nRange > $nRangeMax} {set nRangeMax $nRange}
+  }
+  if {$iFirstMax >= (1<<22)} {error "first-max is too large for format"}
+  if {$nRangeMax >= (1<<10)} {error "range-max is too large for format"}
+
+  puts -nonewline "  "
+  puts [string trim {
+  /* Each unsigned integer in the following array corresponds to a contiguous
+  ** range of unicode codepoints that are not either letters or numbers (i.e.
+  ** codepoints for which this function should return 0).
+  **
+  ** The most significant 22 bits in each 32-bit value contain the first 
+  ** codepoint in the range. The least significant 10 bits are used to store
+  ** the size of the range (always at least 1). In other words, the value 
+  ** ((C<<22) + N) represents a range of N codepoints starting with codepoint 
+  ** C. It is not possible to represent a range larger than 1023 codepoints 
+  ** using this format.
+  */
+  }]
+  puts -nonewline "  static const unsigned int aEntry\[\] = \{"
+  set i 0
+  foreach range $lRange {
+    foreach {iFirst nRange} $range {}
+    set u32 [format "0x%08X" [expr ($iFirst<<10) + $nRange]]
+
+    if {($i % 5)==0} {puts "" ; puts -nonewline "   "}
+    puts -nonewline " $u32,"
+    incr i
+  }
+  puts ""
+  puts "  \};"
+}
+
+proc an_print_ascii_bitmap {lRange} {
+  foreach range $lRange {
+    foreach {iFirst nRange} $range {}
+    for {set i $iFirst} {$i < ($iFirst+$nRange)} {incr i} {
+      if {$i<=127} { set a($i) 1 }
+    }
+  }
+
+  set aAscii [list 0 0 0 0]
+  foreach key [array names a] {
+    set idx [expr $key >> 5]
+    lset aAscii $idx [expr [lindex $aAscii $idx] | (1 << ($key&0x001F))]
+  }
+
+  puts "  static const unsigned int aAscii\[4\] = \{"
+  puts -nonewline "   "
+  foreach v $aAscii { puts -nonewline [format " 0x%08X," $v] }
+  puts ""
+  puts "  \};"
+}
+
+proc print_isalnum {zFunc lRange} {
+  puts "/*"
+  puts "** Return true if the argument corresponds to a unicode codepoint"
+  puts "** classified as either a letter or a number. Otherwise false."
+  puts "**"
+  puts "** The results are undefined if the value passed to this function"
+  puts "** is less than zero."
+  puts "*/"
+  puts "int ${zFunc}\(int c)\{"
+  an_print_range_array $lRange
+  an_print_ascii_bitmap $lRange
+  puts {
+  if( (unsigned int)c<128 ){
+    return ( (aAscii[c >> 5] & ((unsigned int)1 << (c & 0x001F)))==0 );
+  }else if( (unsigned int)c<(1<<22) ){
+    unsigned int key = (((unsigned int)c)<<10) | 0x000003FF;
+    int iRes = 0;
+    int iHi = sizeof(aEntry)/sizeof(aEntry[0]) - 1;
+    int iLo = 0;
+    while( iHi>=iLo ){
+      int iTest = (iHi + iLo) / 2;
+      if( key >= aEntry[iTest] ){
+        iRes = iTest;
+        iLo = iTest+1;
+      }else{
+        iHi = iTest-1;
+      }
+    }
+    assert( aEntry[0]<key );
+    assert( key>=aEntry[iRes] );
+    return (((unsigned int)c) >= ((aEntry[iRes]>>10) + (aEntry[iRes]&0x3FF)));
+  }
+  return 1;}
+  puts "\}"
+}
+
+proc print_test_isalnum {zFunc lRange} {
+  foreach range $lRange {
+    foreach {iFirst nRange} $range {}
+    for {set i $iFirst} {$i < ($iFirst+$nRange)} {incr i} { set a($i) 1 }
+  }
+
+  puts "static int isalnum_test(int *piCode)\{"
+  puts -nonewline "  unsigned char aAlnum\[\] = \{"
+  for {set i 0} {$i < 70000} {incr i} {
+    if {($i % 32)==0} { puts "" ; puts -nonewline "    " }
+    set bFlag [expr ![info exists a($i)]]
+    puts -nonewline "${bFlag},"
+  }
+  puts ""
+  puts "  \};"
+
+  puts -nonewline "  int aLargeSep\[\] = \{"
+  set i 0
+  foreach iSep [lsort -integer [array names a]] {
+    if {$iSep<70000} continue
+    if {($i % 8)==0} { puts "" ; puts -nonewline "   " }
+    puts -nonewline " $iSep,"
+    incr i
+  }
+  puts ""
+  puts "  \};"
+  puts -nonewline "  int aLargeOther\[\] = \{"
+  set i 0
+  foreach iSep [lsort -integer [array names a]] {
+    if {$iSep<70000} continue
+    if {[info exists a([expr $iSep-1])]==0} {
+      if {($i % 8)==0} { puts "" ; puts -nonewline "   " }
+      puts -nonewline " [expr $iSep-1],"
+      incr i
+    }
+    if {[info exists a([expr $iSep+1])]==0} {
+      if {($i % 8)==0} { puts "" ; puts -nonewline "   " }
+      puts -nonewline " [expr $iSep+1],"
+      incr i
+    }
+  }
+  puts ""
+  puts "  \};"
+
+  puts [subst -nocommands {
+  int i;
+  for(i=0; i<sizeof(aAlnum)/sizeof(aAlnum[0]); i++){
+    if( ${zFunc}(i)!=aAlnum[i] ){
+      *piCode = i;
+      return 1;
+    }
+  }
+  for(i=0; i<sizeof(aLargeSep)/sizeof(aLargeSep[0]); i++){
+    if( ${zFunc}(aLargeSep[i])!=0 ){
+      *piCode = aLargeSep[i];
+      return 1;
+    }
+  }
+  for(i=0; i<sizeof(aLargeOther)/sizeof(aLargeOther[0]); i++){
+    if( ${zFunc}(aLargeOther[i])!=1 ){
+      *piCode = aLargeOther[i];
+      return 1;
+    }
+  }
+  }]
+  puts "  return 0;"
+  puts "\}"
+}
+
+#-------------------------------------------------------------------------
+
+proc tl_create_records {} {
+  global tl_lookup_table
+
+  set iFirst ""
+  set nOff 0
+  set nRange 0
+  set nIncr 0
+
+  set lRecord [list]
+  foreach code [lsort -integer [array names tl_lookup_table]] {
+    set mapping $tl_lookup_table($code)
+    if {$iFirst == ""} {
+      set iFirst $code
+      set nOff   [expr $mapping - $code]
+      set nRange 1
+      set nIncr 1
+    } else {
+      set diff [expr $code - ($iFirst + ($nIncr * ($nRange - 1)))]
+      if { $nRange==1 && ($diff==1 || $diff==2) } {
+        set nIncr $diff
+      }
+
+      if {$diff != $nIncr || ($mapping - $code)!=$nOff} {
+        if { $nRange==1 } {set nIncr 1}
+        lappend lRecord [list $iFirst $nIncr $nRange $nOff]
+        set iFirst $code
+        set nOff   [expr $mapping - $code]
+        set nRange 1
+        set nIncr 1
+      } else {
+        incr nRange
+      }
+    }
+  }
+
+  lappend lRecord [list $iFirst $nIncr $nRange $nOff]
+
+  set lRecord
+}
+
+proc tl_print_table_header {} {
+  puts -nonewline "  "
+  puts [string trim {
+  /* Each entry in the following array defines a rule for folding a range
+  ** of codepoints to lower case. The rule applies to a range of nRange
+  ** codepoints starting at codepoint iCode.
+  **
+  ** If the least significant bit in flags is clear, then the rule applies
+  ** to all nRange codepoints (i.e. all nRange codepoints are upper case and
+  ** need to be folded). Or, if it is set, then the rule only applies to
+  ** every second codepoint in the range, starting with codepoint C.
+  **
+  ** The 7 most significant bits in flags are an index into the aiOff[]
+  ** array. If a specific codepoint C does require folding, then its lower
+  ** case equivalent is ((C + aiOff[flags>>1]) & 0xFFFF).
+  **
+  ** The contents of this array are generated by parsing the CaseFolding.txt
+  ** file distributed as part of the "Unicode Character Database". See
+  ** http://www.unicode.org for details.
+  */
+  }]
+  puts "  static const struct TableEntry \{"
+  puts "    unsigned short iCode;"
+  puts "    unsigned char flags;"
+  puts "    unsigned char nRange;"
+  puts "  \} aEntry\[\] = \{"
+}
+
+proc tl_print_table_entry {togglevar entry liOff} {
+  upvar $togglevar t
+  foreach {iFirst nIncr nRange nOff} $entry {}
+
+  if {$iFirst > (1<<16)} { return 1 }
+
+  if {[info exists t]==0} {set t 0}
+  if {$t==0} { puts -nonewline "    " }
+
+  set flags 0
+  if {$nIncr==2} { set flags 1 ; set nRange [expr $nRange * 2]}
+  if {$nOff<0}   { incr nOff [expr (1<<16)] }
+
+  set idx [lsearch $liOff $nOff]
+  if {$idx<0} {error "malfunction generating aiOff"}
+  set flags [expr $flags + $idx*2]
+
+  set txt "{$iFirst, $flags, $nRange},"
+  if {$t==2} {
+    puts $txt
+  } else {
+    puts -nonewline [format "% -23s" $txt]
+  }
+  set t [expr ($t+1)%3]
+
+  return 0
+}
+
+proc tl_print_table_footer {togglevar} {
+  upvar $togglevar t
+  if {$t!=0} {puts ""}
+  puts "  \};"
+}
+
+proc tl_print_if_entry {entry} {
+  foreach {iFirst nIncr nRange nOff} $entry {}
+  if {$nIncr==2} {error "tl_print_if_entry needs improvement!"}
+
+  puts "  else if( c>=$iFirst && c<[expr $iFirst+$nRange] )\{"
+  puts "    ret = c + $nOff;"
+  puts "  \}"
+}
+
+proc tl_generate_ioff_table {lRecord} {
+  foreach entry $lRecord {
+    foreach {iFirst nIncr nRange iOff} $entry {}
+    if {$iOff<0}   { incr iOff [expr (1<<16)] }
+    if {[info exists a($iOff)]} continue
+    set a($iOff) 1
+  }
+
+  set liOff [lsort -integer [array names a]]
+  if {[llength $liOff]>128} { error "Too many distinct ioffs" }
+  return $liOff
+}
+
+proc tl_print_ioff_table {liOff} {
+  puts -nonewline "  static const unsigned short aiOff\[\] = \{"
+  set i 0
+  foreach off $liOff {
+    if {($i % 8)==0} {puts "" ; puts -nonewline "   "}
+    puts -nonewline [format "% -7s" "$off,"]
+    incr i
+  }
+  puts ""
+  puts "  \};"
+
+}
+
+proc print_fold {zFunc} {
+
+  set lRecord [tl_create_records]
+
+  set lHigh [list]
+  puts "/*"
+  puts "** Interpret the argument as a unicode codepoint. If the codepoint"
+  puts "** is an upper case character that has a lower case equivalent,"
+  puts "** return the codepoint corresponding to the lower case version."
+  puts "** Otherwise, return a copy of the argument."
+  puts "**"
+  puts "** The results are undefined if the value passed to this function"
+  puts "** is less than zero."
+  puts "*/"
+  puts "int ${zFunc}\(int c, int eRemoveDiacritic)\{"
+
+  set liOff [tl_generate_ioff_table $lRecord]
+  tl_print_table_header
+  foreach entry $lRecord { 
+    if {[tl_print_table_entry toggle $entry $liOff]} { 
+      lappend lHigh $entry 
+    } 
+  }
+  tl_print_table_footer toggle
+  tl_print_ioff_table $liOff
+
+  puts [subst -nocommands {
+  int ret = c;
+
+  assert( sizeof(unsigned short)==2 && sizeof(unsigned char)==1 );
+
+  if( c<128 ){
+    if( c>='A' && c<='Z' ) ret = c + ('a' - 'A');
+  }else if( c<65536 ){
+    const struct TableEntry *p;
+    int iHi = sizeof(aEntry)/sizeof(aEntry[0]) - 1;
+    int iLo = 0;
+    int iRes = -1;
+
+    assert( c>aEntry[0].iCode );
+    while( iHi>=iLo ){
+      int iTest = (iHi + iLo) / 2;
+      int cmp = (c - aEntry[iTest].iCode);
+      if( cmp>=0 ){
+        iRes = iTest;
+        iLo = iTest+1;
+      }else{
+        iHi = iTest-1;
+      }
+    }
+
+    assert( iRes>=0 && c>=aEntry[iRes].iCode );
+    p = &aEntry[iRes];
+    if( c<(p->iCode + p->nRange) && 0==(0x01 & p->flags & (p->iCode ^ c)) ){
+      ret = (c + (aiOff[p->flags>>1])) & 0x0000FFFF;
+      assert( ret>0 );
+    }
+
+    if( eRemoveDiacritic ){
+      ret = ${::remove_diacritic}(ret, eRemoveDiacritic==2);
+    }
+  }
+  }]
+
+  foreach entry $lHigh {
+    tl_print_if_entry $entry
+  }
+
+  puts ""
+  puts "  return ret;"
+  puts "\}"
+}
+
+proc code {txt} {
+  set txt [string trimright $txt]
+  set txt [string trimleft $txt "\n"]
+  set n [expr {[string length $txt] - [string length [string trim $txt]]}]
+  set ret ""
+  foreach L [split $txt "\n"] {
+    append ret "[string range $L $n end]\n"
+  }
+  return [uplevel "subst -nocommands {$ret}"]
+}
+
+proc intarray {lInt} {
+  set ret ""
+  set n [llength $lInt]
+  for {set i 0} {$i < $n} {incr i 10} {
+    append ret "\n    "
+    foreach int [lrange $lInt $i [expr $i+9]] {
+      append ret [format "%-7s" "$int, "]
+    }
+  }
+  append ret "\n  "
+  set ret
+}
+
+proc categories_switch {Cvar first lSecond} {
+  upvar $Cvar C
+  set ret ""
+  append ret "case '$first':\n"
+  append ret "          switch( zCat\[1\] ){\n"
+  foreach s $lSecond {
+    append ret "            case '$s': aArray\[$C($first$s)\] = 1; break;\n"
+  }
+  append ret "            case '*': \n"
+  foreach s $lSecond {
+    append ret "              aArray\[$C($first$s)\] = 1;\n"
+  }
+  append ret "              break;\n"
+  append ret "            default: return 1;"
+  append ret "          }\n"
+  append ret "          break;\n"
+}
+
+# Argument is a list. Each element of which is itself a list of two elements:
+#
+#   * the codepoint
+#   * the category
+#
+# List elements are sorted in order of codepoint.
+#
+proc print_categories {lMap} {
+  set categories {
+    Cc Cf Cn Cs
+    Ll Lm Lo Lt Lu
+    Mc Me Mn
+    Nd Nl No
+    Pc Pd Pe Pf Pi Po Ps
+    Sc Sk Sm So
+    Zl Zp Zs
+
+    LC Co
+  }
+
+  for {set i 0} {$i < [llength $categories]} {incr i} {
+    set C([lindex $categories $i]) [expr 1+$i]
+  }
+
+  set caseC [categories_switch C C {c f n s o}]
+  set caseL [categories_switch C L {l m o t u C}]
+  set caseM [categories_switch C M {c e n}]
+  set caseN [categories_switch C N {d l o}]
+  set caseP [categories_switch C P {c d e f i o s}]
+  set caseS [categories_switch C S {c k m o}]
+  set caseZ [categories_switch C Z {l p s}]
+
+  set nCat [expr [llength [array names C]] + 1]
+  puts [code {
+    int sqlite3Fts5UnicodeCatParse(const char *zCat, u8 *aArray){ 
+      aArray[0] = 1;
+      switch( zCat[0] ){
+        $caseC
+        $caseL
+        $caseM
+        $caseN
+        $caseP
+        $caseS
+        $caseZ
+
+        default:
+          return 1;
+      }
+      return 0;
+    }
+  }]
+
+  set nRepeat 0
+  set first   [lindex $lMap 0 0]
+  set class   [lindex $lMap 0 1]
+  set prev -1
+
+  set CASE(0) "Lu"
+  set CASE(1) "Ll"
+
+  foreach m $lMap {
+    foreach {codepoint cl} $m {}
+    set codepoint [expr "0x$codepoint"]
+    if {$codepoint>=(1<<20)} continue
+
+    set bNew 0
+    if {$codepoint!=($prev+1)} {
+      set bNew 1
+    } elseif {
+      $cl==$class || ($class=="LC" && $cl==$CASE([expr $nRepeat & 0x01]))
+    } {
+      incr nRepeat
+    } elseif {$class=="Lu" && $nRepeat==1 && $cl=="Ll"} {
+      set class LC
+      incr nRepeat
+    } else {
+      set bNew 1
+    }
+    if {$bNew} {
+      lappend lEntries [list $first $class $nRepeat]
+      set nRepeat 1
+      set first $codepoint
+      set class $cl
+    }
+    set prev $codepoint
+  }
+  if {$nRepeat>0} {
+    lappend lEntries [list $first $class $nRepeat]
+  }
+
+  set aBlock [list 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0]
+  set aMap [list]
+  foreach e $lEntries {
+    foreach {cp class nRepeat} $e {}
+    set block [expr ($cp>>16)]
+    if {$block>0 && [lindex $aBlock $block]==0} {
+      for {set i 1} {$i<=$block} {incr i} {
+        if {[lindex $aBlock $i]==0} {
+          lset aBlock $i [llength $aMap]
+        }
+      }
+    }
+    lappend aMap [expr {$cp & 0xFFFF}]
+    lappend aData [expr {($nRepeat << 5) + $C($class)}]
+  }
+  for {set i 1} {$i<[llength $aBlock]} {incr i} {
+    if {[lindex $aBlock $i]==0} {
+      lset aBlock $i [llength $aMap]
+    }
+  }
+
+  set aBlockArray [intarray $aBlock]
+  set aMapArray [intarray $aMap]
+  set aDataArray [intarray $aData]
+  puts [code {
+    static u16 aFts5UnicodeBlock[] = {$aBlockArray};
+    static u16 aFts5UnicodeMap[] = {$aMapArray};
+    static u16 aFts5UnicodeData[] = {$aDataArray};
+
+    int sqlite3Fts5UnicodeCategory(u32 iCode) { 
+      int iRes = -1;
+      int iHi;
+      int iLo;
+      int ret;
+      u16 iKey;
+
+      if( iCode>=(1<<20) ){
+        return 0;
+      }
+      iLo = aFts5UnicodeBlock[(iCode>>16)];
+      iHi = aFts5UnicodeBlock[1+(iCode>>16)];
+      iKey = (iCode & 0xFFFF);
+      while( iHi>iLo ){
+        int iTest = (iHi + iLo) / 2;
+        assert( iTest>=iLo && iTest<iHi );
+        if( iKey>=aFts5UnicodeMap[iTest] ){
+          iRes = iTest;
+          iLo = iTest+1;
+        }else{
+          iHi = iTest;
+        }
+      }
+
+      if( iRes<0 ) return 0;
+      if( iKey>=(aFts5UnicodeMap[iRes]+(aFts5UnicodeData[iRes]>>5)) ) return 0;
+      ret = aFts5UnicodeData[iRes] & 0x1F;
+      if( ret!=$C(LC) ) return ret;
+      return ((iKey - aFts5UnicodeMap[iRes]) & 0x01) ? $C(Ll) : $C(Lu);
+    }
+
+    void sqlite3Fts5UnicodeAscii(u8 *aArray, u8 *aAscii){
+      int i = 0;
+      int iTbl = 0;
+      while( i<128 ){
+        int bToken = aArray[ aFts5UnicodeData[iTbl] & 0x1F ];
+        int n = (aFts5UnicodeData[iTbl] >> 5) + i;
+        for(; i<128 && i<n; i++){
+          aAscii[i] = (u8)bToken;
+        }
+        iTbl++;
+      }
+      aAscii[0] = 0;                  /* 0x00 is never a token character */
+    }
+  }]
+}
+
+proc print_test_categories {lMap} {
+
+  set lCP [list]
+  foreach e $lMap {
+    foreach {cp cat} $e {}
+    if {[expr 0x$cp] < (1<<20)} {
+      lappend lCP "{0x$cp, \"$cat\"}, "
+    }
+  }
+
+  set aCP "\n"
+  for {set i 0} {$i < [llength $lCP]} {incr i 4} {
+    append aCP "    [join [lrange $lCP $i $i+3]]\n"
+  }
+
+
+  puts [code {
+    static int categories_test (int *piCode){
+      struct Codepoint {
+        int iCode;
+        const char *zCat;
+      } aCP[] = {$aCP};
+      int i;
+      int iCP = 0;
+
+      for(i=0; i<1000000; i++){
+        u8 aArray[40];
+        int cat = 0;
+        int c = 0;
+        memset(aArray, 0, sizeof(aArray));
+        if( aCP[iCP].iCode==i ){
+          sqlite3Fts5UnicodeCatParse(aCP[iCP].zCat, aArray);
+          iCP++;
+        }else{
+          aArray[0] = 1;
+        }
+
+        c = sqlite3Fts5UnicodeCategory((u32)i);
+        if( aArray[c]==0 ){
+          *piCode = i;
+          return 1;
+        }
+      }
+
+      return 0;
+    }
+  }]
+}
+
+proc print_fold_test {zFunc mappings} {
+  global tl_lookup_table
+
+  foreach m $mappings {
+    set c [lindex $m 1]
+    if {$c == ""} {
+      set extra([lindex $m 0]) 0
+    } else {
+      scan $c %c i
+      set extra([lindex $m 0]) $i
+    }
+  }
+
+  puts "static int fold_test(int *piCode)\{"
+  puts -nonewline "  static int aLookup\[\] = \{"
+  for {set i 0} {$i < 70000} {incr i} {
+
+    set expected $i
+    catch { set expected $tl_lookup_table($i) }
+    set expected2 $expected
+    catch { set expected2 $extra($expected2) }
+
+    if {($i % 4)==0}  { puts "" ; puts -nonewline "    " }
+    puts -nonewline "$expected, $expected2, "
+  }
+  puts "  \};"
+  puts "  int i;"
+  puts "  for(i=0; i<sizeof(aLookup)/sizeof(aLookup\[0\]); i++)\{"
+  puts "    int iCode = (i/2);"
+  puts "    int bFlag = i & 0x0001;"
+  puts "    if( ${zFunc}\(iCode, bFlag)!=aLookup\[i\] )\{"
+  puts "      *piCode = iCode;"
+  puts "      return 1;"
+  puts "    \}"
+  puts "  \}"
+  puts "  return 0;"
+  puts "\}"
+}
+
+
+proc print_fileheader {} {
+  puts [string trim {
+/*
+** 2012-05-25
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+*/
+
+/*
+** DO NOT EDIT THIS MACHINE GENERATED FILE.
+*/
+  }]
+  puts ""
+  if {$::generate_fts5_code} {
+    # no-op
+  } else {
+    puts "#ifndef SQLITE_DISABLE_FTS3_UNICODE"
+    puts "#if defined(SQLITE_ENABLE_FTS3) || defined(SQLITE_ENABLE_FTS4)"
+  }
+  puts ""
+  puts "#include <assert.h>"
+  puts ""
+}
+
+proc print_test_main {} {
+  puts ""
+  puts "#include <stdio.h>"
+  puts ""
+  puts "int main(int argc, char **argv)\{"
+  puts "  int r1, r2, r3;"
+  puts "  int code;"
+  puts "  r3 = 0;"
+  puts "  r1 = isalnum_test(&code);"
+  puts "  if( r1 ) printf(\"isalnum(): Problem with code %d\\n\",code);"
+  puts "  else printf(\"isalnum(): test passed\\n\");"
+  puts "  r2 = fold_test(&code);"
+  puts "  if( r2 ) printf(\"fold(): Problem with code %d\\n\",code);"
+  puts "  else printf(\"fold(): test passed\\n\");"
+  if {$::generate_fts5_code} {
+    puts "  r3 = categories_test(&code);"
+    puts "  if( r3 ) printf(\"categories(): Problem with code %d\\n\",code);"
+    puts "  else printf(\"categories(): test passed\\n\");"
+  }
+  puts "  return (r1 || r2 || r3);"
+  puts "\}"
+}
+
+# Proces the command line arguments. Exit early if they are not to
+# our liking.
+#
+proc usage {} {
+  puts -nonewline stderr "Usage: $::argv0 ?-test? ?-fts5? "
+  puts            stderr "<CaseFolding.txt file> <UnicodeData.txt file>"
+  exit 1
+}
+if {[llength $argv]<2} usage
+set unicodedata.txt [lindex $argv end]
+set casefolding.txt [lindex $argv end-1]
+
+set remove_diacritic remove_diacritic
+set generate_test_code 0
+set generate_fts5_code 0
+set function_prefix "sqlite3Fts"
+for {set i 0} {$i < [llength $argv]-2} {incr i} {
+  switch -- [lindex $argv $i] {
+    -test {
+      set generate_test_code 1
+    }
+    -fts5 {
+      set function_prefix sqlite3Fts5
+      set generate_fts5_code 1
+      set remove_diacritic fts5_remove_diacritic
+    }
+    default {
+      usage
+    }
+  }
+}
+
+print_fileheader
+
+if {$::generate_test_code} {
+  puts "typedef unsigned short int u16;"
+  puts "typedef unsigned char u8;"
+  puts "#include <string.h>"
+}
+
+# Print the isalnum() function to stdout.
+#
+set lRange [an_load_separator_ranges]
+if {$generate_fts5_code==0} {
+  print_isalnum ${function_prefix}UnicodeIsalnum $lRange
+}
+
+# Leave a gap between the two generated C functions.
+#
+puts ""
+puts ""
+
+# Load the fold data. This is used by the [rd_XXX] commands
+# as well as [print_fold].
+tl_load_casefolding_txt ${casefolding.txt}
+
+set mappings [rd_load_unicodedata_text ${unicodedata.txt}]
+print_rd $mappings
+puts ""
+puts ""
+print_isdiacritic ${function_prefix}UnicodeIsdiacritic $mappings
+puts ""
+puts ""
+
+# Print the fold() function to stdout.
+#
+print_fold ${function_prefix}UnicodeFold
+
+if {$generate_fts5_code} {
+  puts ""
+  puts ""
+  print_categories [cc_load_unicodedata_text ${unicodedata.txt}]
+}
+
+# Print the test routines and main() function to stdout, if -test 
+# was specified.
+#
+if {$::generate_test_code} {
+  if {$generate_fts5_code==0} {
+    print_test_isalnum ${function_prefix}UnicodeIsalnum $lRange
+  }
+  print_fold_test ${function_prefix}UnicodeFold $mappings
+  print_test_categories [cc_load_unicodedata_text ${unicodedata.txt}]
+  print_test_main 
+}
+
+if {$generate_fts5_code} {
+  # no-op
+} else {
+  puts "#endif /* defined(SQLITE_ENABLE_FTS3) || defined(SQLITE_ENABLE_FTS4) */"
+  puts "#endif /* !defined(SQLITE_DISABLE_FTS3_UNICODE) */"
+}
diff --git a/ext/fts3/unicode/parseunicode.tcl b/ext/fts3/unicode/parseunicode.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..7c246a4a0925670669e81093951760047f7b7b05
--- /dev/null
+++ b/ext/fts3/unicode/parseunicode.tcl
@@ -0,0 +1,205 @@
+
+#--------------------------------------------------------------------------
+# Parameter $zName must be a path to the file UnicodeData.txt. This command
+# reads the file and returns a list of mappings required to remove all
+# diacritical marks from a unicode string. Each mapping is itself a list
+# consisting of two elements - the unicode codepoint and the single ASCII
+# character that it should be replaced with, or an empty string if the 
+# codepoint should simply be removed from the input. Examples:
+#
+#   { 224 a  0 }     (replace codepoint 224 to "a")
+#   { 769 "" 0 }     (remove codepoint 769 from input)
+#
+# Mappings are only returned for non-upper case codepoints. It is assumed
+# that the input has already been folded to lower case.
+#
+# The third value in the list is always either 0 or 1. 0 if the 
+# UnicodeData.txt file maps the codepoint to a single ASCII character and
+# a diacritic, or 1 if the mapping is indirect. For example, consider the 
+# two entries:
+#
+# 1ECD;LATIN SMALL LETTER O WITH DOT BELOW;Ll;0;L;006F 0323;;;;N;;;1ECC;;1ECC
+# 1ED9;LATIN SMALL LETTER O WITH CIRCUMFLEX AND DOT BELOW;Ll;0;L;1ECD 0302;;;;N;;;1ED8;;1ED8
+#
+# The first codepoint is a direct mapping (as 006F is ASCII and 0323 is a 
+# diacritic). The second is an indirect mapping, as it maps to the
+# first codepoint plus 0302 (a diacritic).
+#
+proc rd_load_unicodedata_text {zName} {
+  global tl_lookup_table
+
+  set fd [open $zName]
+  set lField {
+    code
+    character_name
+    general_category
+    canonical_combining_classes
+    bidirectional_category
+    character_decomposition_mapping
+    decimal_digit_value
+    digit_value
+    numeric_value
+    mirrored
+    unicode_1_name
+    iso10646_comment_field
+    uppercase_mapping
+    lowercase_mapping
+    titlecase_mapping
+  }
+  set lRet [list]
+
+  while { ![eof $fd] } {
+    set line [gets $fd]
+    if {$line == ""} continue
+
+    set fields [split $line ";"]
+    if {[llength $fields] != [llength $lField]} { error "parse error: $line" }
+    foreach $lField $fields {}
+    if { [llength $character_decomposition_mapping]!=2
+      || [string is xdigit [lindex $character_decomposition_mapping 0]]==0
+    } {
+      continue
+    }
+
+    set iCode  [expr "0x$code"]
+    set iAscii [expr "0x[lindex $character_decomposition_mapping 0]"]
+    set iDia   [expr "0x[lindex $character_decomposition_mapping 1]"]
+
+    # Filter out upper-case characters, as they will be mapped to their
+    # lower-case equivalents before this data is used.
+    if {[info exists tl_lookup_table($iCode)]} continue
+
+    # Check if this is an indirect mapping. If so, set bIndirect to true
+    # and change $iAscii to the indirectly mappped ASCII character.
+    set bIndirect 0
+    if {[info exists dia($iDia)] && [info exists mapping($iAscii)]} {
+      set iAscii $mapping($iAscii)
+      set bIndirect 1
+    }
+
+    if { ($iAscii >= 97 && $iAscii <= 122)
+      || ($iAscii >= 65 && $iAscii <= 90)
+    } {
+      lappend lRet [list $iCode [string tolower [format %c $iAscii]] $bIndirect]
+      set mapping($iCode) $iAscii
+      set dia($iDia) 1
+    }
+  }
+
+  foreach d [array names dia] {
+    lappend lRet [list $d "" 0]
+  }
+  set lRet [lsort -integer -index 0 $lRet]
+
+  close $fd
+  set lRet
+}
+
+#-------------------------------------------------------------------------
+# Parameter $zName must be a path to the file UnicodeData.txt. This command
+# reads the file and returns a list of codepoints (integers). The list
+# contains all codepoints in the UnicodeData.txt assigned to any "General
+# Category" that is not a "Letter" or "Number".
+#
+proc an_load_unicodedata_text {zName} {
+  set fd [open $zName]
+  set lField {
+    code
+    character_name
+    general_category
+    canonical_combining_classes
+    bidirectional_category
+    character_decomposition_mapping
+    decimal_digit_value
+    digit_value
+    numeric_value
+    mirrored
+    unicode_1_name
+    iso10646_comment_field
+    uppercase_mapping
+    lowercase_mapping
+    titlecase_mapping
+  }
+  set lRet [list]
+
+  while { ![eof $fd] } {
+    set line [gets $fd]
+    if {$line == ""} continue
+
+    set fields [split $line ";"]
+    if {[llength $fields] != [llength $lField]} { error "parse error: $line" }
+    foreach $lField $fields {}
+
+    set iCode [expr "0x$code"]
+    set bAlnum [expr {
+         [lsearch {L N} [string range $general_category 0 0]] >= 0
+      || $general_category=="Co"
+    }]
+
+    if { !$bAlnum } { lappend lRet $iCode }
+  }
+
+  close $fd
+  set lRet
+}
+
+proc tl_load_casefolding_txt {zName} {
+  global tl_lookup_table
+
+  set fd [open $zName]
+  while { ![eof $fd] } {
+    set line [gets $fd]
+    if {[string range $line 0 0] == "#"} continue
+    if {$line == ""} continue
+
+    foreach x {a b c d} {unset -nocomplain $x}
+    foreach {a b c d} [split $line ";"] {}
+
+    set a2 [list]
+    set c2 [list]
+    foreach elem $a { lappend a2 [expr "0x[string trim $elem]"] }
+    foreach elem $c { lappend c2 [expr "0x[string trim $elem]"] }
+    set b [string trim $b]
+    set d [string trim $d]
+
+    if {$b=="C" || $b=="S"} { set tl_lookup_table($a2) $c2 }
+  }
+}
+
+proc cc_load_unicodedata_text {zName} {
+  set fd [open $zName]
+  set lField {
+    code
+    character_name
+    general_category
+    canonical_combining_classes
+    bidirectional_category
+    character_decomposition_mapping
+    decimal_digit_value
+    digit_value
+    numeric_value
+    mirrored
+    unicode_1_name
+    iso10646_comment_field
+    uppercase_mapping
+    lowercase_mapping
+    titlecase_mapping
+  }
+  set lRet [list]
+
+  while { ![eof $fd] } {
+    set line [gets $fd]
+    if {$line == ""} continue
+
+    set fields [split $line ";"]
+    if {[llength $fields] != [llength $lField]} { error "parse error: $line" }
+    foreach $lField $fields {}
+
+    lappend lRet [list $code $general_category]
+  }
+
+  close $fd
+  set lRet
+}
+
+
diff --git a/ext/fts5/extract_api_docs.tcl b/ext/fts5/extract_api_docs.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..6ee71c262c98b9cdb94906a7325b72b26f232ad3
--- /dev/null
+++ b/ext/fts5/extract_api_docs.tcl
@@ -0,0 +1,257 @@
+#
+# 2014 August 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#--------------------------------------------------------------------------
+#
+# This script extracts the documentation for the API used by fts5 auxiliary 
+# functions from header file fts5.h. It outputs html text on stdout that
+# is included in the documentation on the web.
+# 
+
+set ::fts5_docs_output ""
+if {[info commands hd_putsnl]==""} {
+  if {[llength $argv]>0} { set ::extract_api_docs_mode [lindex $argv 0] }
+  proc output {text} {
+    puts $text
+  }
+} else {
+  proc output {text} {
+    append ::fts5_docs_output "$text\n"
+  }
+}
+if {[info exists ::extract_api_docs_mode]==0} {set ::extract_api_docs_mode api}
+
+
+set input_file [file join [file dir [info script]] fts5.h]
+set fd [open $input_file]
+set data [read $fd]
+close $fd
+
+
+# Argument $data is the entire text of the fts5.h file. This function 
+# extracts the definition of the Fts5ExtensionApi structure from it and
+# returns a key/value list of structure member names and definitions. i.e.
+#
+#   iVersion {int iVersion} xUserData {void *(*xUserData)(Fts5Context*)} ...
+#
+proc get_struct_members {data} {
+
+  # Extract the structure definition from the fts5.h file.
+  regexp "struct Fts5ExtensionApi {(.*?)};" $data -> defn
+
+  # Remove all comments from the structure definition
+  regsub -all {/[*].*?[*]/} $defn {} defn2
+
+  set res [list]
+  foreach member [split $defn2 {;}] {
+
+    set member [string trim $member]
+    if {$member!=""} { 
+      catch { set name [lindex $member end] }
+      regexp {.*?[(][*]([^)]*)[)]} $member -> name
+      lappend res $name $member
+    }
+  }
+
+  set res
+}
+
+proc get_struct_docs {data names} {
+  # Extract the structure definition from the fts5.h file.
+  regexp {EXTENSION API FUNCTIONS(.*?)[*]/} $data -> docs
+
+  set current_doc    ""
+  set current_header ""
+
+  foreach line [split $docs "\n"] {
+    regsub {[*]*} $line {} line
+    if {[regexp {^  } $line]} {
+      append current_doc "$line\n"
+    } elseif {[string trim $line]==""} {
+      if {$current_header!=""} { append current_doc "\n" }
+    } else {
+      if {$current_doc != ""} {
+        lappend res $current_header $current_doc
+        set current_doc ""
+      }
+      set subject n/a
+      regexp {^ *([[:alnum:]_]*)} $line -> subject
+      if {[lsearch $names $subject]>=0} {
+        set current_header $subject
+      } else {
+        set current_header [string trim $line]
+      }
+    }
+  }
+
+  if {$current_doc != ""} {
+    lappend res $current_header $current_doc
+  }
+
+  set res
+}
+
+proc get_tokenizer_docs {data} {
+  regexp {(xCreate:.*?)[*]/} $data -> docs
+
+  set res "<dl>\n"
+  foreach line [split [string trim $docs] "\n"] {
+    regexp {[*][*](.*)} $line -> line
+    if {[regexp {^ ?x.*:} $line]} {
+      append res "<dt><b>$line</b></dt><dd><p style=margin-top:0>\n"
+      continue
+    }
+    if {[regexp {FTS5_TOKENIZER} $line]} {
+      set line </dl><p>
+    }
+    if {[regexp {SYNONYM SUPPORT} $line]} {
+      set line "<h3>Synonym Support</h3>"
+    }
+    if {[string trim $line] == ""} {
+      append res "<p>\n"
+    } else {
+      append res "$line\n"
+    }
+  }
+
+  set res
+}
+
+proc get_api_docs {data} {
+  # Initialize global array M as a map from Fts5StructureApi member name
+  # to member definition. i.e.
+  #
+  #   iVersion  -> {int iVersion}
+  #   xUserData -> {void *(*xUserData)(Fts5Context*)}
+  #   ...
+  #
+  array set M [get_struct_members $data]
+  
+  # Initialize global list D as a map from section name to documentation
+  # text. Most (all?) section names are structure member names.
+  #
+  set D [get_struct_docs $data [array names M]]
+  
+  output "<dl>"
+  foreach {sub docs} $D {
+    if {[info exists M($sub)]} {
+      set hdr $M($sub)
+      set link " id=$sub"
+    } else {
+      set link ""
+    }
+
+    #output "<hr color=#eeeee style=\"margin:1em 8.4ex 0 8.4ex;\"$link>"
+    #set style "padding-left:6ex;font-size:1.4em;display:block"
+    #output "<h style=\"$style\"><pre>$hdr</pre></h>"
+
+    regsub -line {^  *[)]} $hdr ")" hdr
+    output "<dt style=\"white-space:pre;font-family:monospace;font-size:120%\""
+    output "$link>"
+    output "<b>$hdr</b></dt><dd>"
+  
+    set mode ""
+    set margin " style=margin-top:0.1em"
+    foreach line [split [string trim $docs] "\n"] {
+      if {[string trim $line]==""} {
+        if {$mode != ""} {output "</$mode>"}
+        set mode ""
+      } elseif {$mode == ""} {
+        if {[regexp {^     } $line]} {
+          set mode codeblock
+        } else {
+          set mode p
+        }
+        output "<$mode$margin>"
+        set margin ""
+      }
+      output $line
+    }
+    if {$mode != ""} {output "</$mode>"}
+    output "</dd>"
+  }
+  output "</dl>"
+}
+
+proc get_fts5_struct {data start end} {
+  set res ""
+  set bOut 0
+  foreach line [split $data "\n"] {
+    if {$bOut==0} {
+      if {[regexp $start $line]} {
+        set bOut 1
+      }
+    }
+
+    if {$bOut} {
+      append res "$line\n"
+    }
+
+    if {$bOut} {
+      if {[regexp $end $line]} {
+        set bOut 0
+      }
+    }
+  }
+
+  set map [list /* <i>/* */ */</i>]
+  string map $map $res
+}
+
+proc main {data} {
+  switch $::extract_api_docs_mode {
+    fts5_api {
+      output [get_fts5_struct $data "typedef struct fts5_api" "^\};"]
+    }
+
+    fts5_tokenizer {
+      output [get_fts5_struct $data "typedef struct Fts5Tokenizer" "^\};"]
+      output [get_fts5_struct $data \
+        "Flags that may be passed as the third argument to xTokenize()" \
+        "#define FTS5_TOKEN_COLOCATED"
+      ]
+    }
+
+    fts5_extension {
+      output [get_fts5_struct $data "typedef.*Fts5ExtensionApi" "^.;"]
+    }
+
+    Fts5ExtensionApi {
+      set struct [get_fts5_struct $data "^struct Fts5ExtensionApi" "^.;"]
+      set map [list]
+      set lKey [list]
+      foreach {k v} [get_struct_members $data] {
+        if {[string match x* $k]==0} continue
+        lappend lKey $k
+      }
+      foreach k [lsort -decr $lKey] { lappend map $k "<a href=#$k>$k</a>" }
+      output [string map $map $struct]
+    }
+
+    api {
+      get_api_docs $data
+    }
+
+    tokenizer_api {
+      output [get_tokenizer_docs $data]
+    }
+
+    default {
+    }
+  }
+}
+main $data
+
+set ::fts5_docs_output
+
+
+
+
+
diff --git a/ext/fts5/fts5.h b/ext/fts5/fts5.h
new file mode 100644
index 0000000000000000000000000000000000000000..907ea232a42b9e58a3f394543f41f0ddf21e54e2
--- /dev/null
+++ b/ext/fts5/fts5.h
@@ -0,0 +1,754 @@
+/*
+** 2014 May 31
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** Interfaces to extend FTS5. Using the interfaces defined in this file, 
+** FTS5 may be extended with:
+**
+**     * custom tokenizers, and
+**     * custom auxiliary functions.
+*/
+
+
+#ifndef _FTS5_H
+#define _FTS5_H
+
+#include "sqlite3.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*************************************************************************
+** CUSTOM AUXILIARY FUNCTIONS
+**
+** Virtual table implementations may overload SQL functions by implementing
+** the sqlite3_module.xFindFunction() method.
+*/
+
+typedef struct Fts5ExtensionApi Fts5ExtensionApi;
+typedef struct Fts5Context Fts5Context;
+typedef struct Fts5PhraseIter Fts5PhraseIter;
+
+typedef void (*fts5_extension_function)(
+  const Fts5ExtensionApi *pApi,   /* API offered by current FTS version */
+  Fts5Context *pFts,              /* First arg to pass to pApi functions */
+  sqlite3_context *pCtx,          /* Context for returning result/error */
+  int nVal,                       /* Number of values in apVal[] array */
+  sqlite3_value **apVal           /* Array of trailing arguments */
+);
+
+struct Fts5PhraseIter {
+  const unsigned char *a;
+  const unsigned char *b;
+};
+
+/*
+** EXTENSION API FUNCTIONS
+**
+** xUserData(pFts):
+**   Return a copy of the pUserData pointer passed to the xCreateFunction()
+**   API when the extension function was registered.
+**
+** xColumnTotalSize(pFts, iCol, pnToken):
+**   If parameter iCol is less than zero, set output variable *pnToken
+**   to the total number of tokens in the FTS5 table. Or, if iCol is
+**   non-negative but less than the number of columns in the table, return
+**   the total number of tokens in column iCol, considering all rows in 
+**   the FTS5 table.
+**
+**   If parameter iCol is greater than or equal to the number of columns
+**   in the table, SQLITE_RANGE is returned. Or, if an error occurs (e.g.
+**   an OOM condition or IO error), an appropriate SQLite error code is 
+**   returned.
+**
+** xColumnCount(pFts):
+**   Return the number of columns in the table.
+**
+** xColumnSize(pFts, iCol, pnToken):
+**   If parameter iCol is less than zero, set output variable *pnToken
+**   to the total number of tokens in the current row. Or, if iCol is
+**   non-negative but less than the number of columns in the table, set
+**   *pnToken to the number of tokens in column iCol of the current row.
+**
+**   If parameter iCol is greater than or equal to the number of columns
+**   in the table, SQLITE_RANGE is returned. Or, if an error occurs (e.g.
+**   an OOM condition or IO error), an appropriate SQLite error code is 
+**   returned.
+**
+**   This function may be quite inefficient if used with an FTS5 table
+**   created with the "columnsize=0" option.
+**
+** xColumnText:
+**   If parameter iCol is less than zero, or greater than or equal to the
+**   number of columns in the table, SQLITE_RANGE is returned. 
+**
+**   Otherwise, this function attempts to retrieve the text of column iCol of
+**   the current document. If successful, (*pz) is set to point to a buffer
+**   containing the text in utf-8 encoding, (*pn) is set to the size in bytes
+**   (not characters) of the buffer and SQLITE_OK is returned. Otherwise,
+**   if an error occurs, an SQLite error code is returned and the final values
+**   of (*pz) and (*pn) are undefined.
+**
+** xPhraseCount:
+**   Returns the number of phrases in the current query expression.
+**
+** xPhraseSize:
+**   If parameter iCol is less than zero, or greater than or equal to the
+**   number of phrases in the current query, as returned by xPhraseCount, 
+**   0 is returned. Otherwise, this function returns the number of tokens in
+**   phrase iPhrase of the query. Phrases are numbered starting from zero.
+**
+** xInstCount:
+**   Set *pnInst to the total number of occurrences of all phrases within
+**   the query within the current row. Return SQLITE_OK if successful, or
+**   an error code (i.e. SQLITE_NOMEM) if an error occurs.
+**
+**   This API can be quite slow if used with an FTS5 table created with the
+**   "detail=none" or "detail=column" option. If the FTS5 table is created 
+**   with either "detail=none" or "detail=column" and "content=" option 
+**   (i.e. if it is a contentless table), then this API always returns 0.
+**
+** xInst:
+**   Query for the details of phrase match iIdx within the current row.
+**   Phrase matches are numbered starting from zero, so the iIdx argument
+**   should be greater than or equal to zero and smaller than the value
+**   output by xInstCount(). If iIdx is less than zero or greater than
+**   or equal to the value returned by xInstCount(), SQLITE_RANGE is returned.
+**
+**   Otherwise, output parameter *piPhrase is set to the phrase number, *piCol
+**   to the column in which it occurs and *piOff the token offset of the
+**   first token of the phrase. SQLITE_OK is returned if successful, or an
+**   error code (i.e. SQLITE_NOMEM) if an error occurs.
+**
+**   This API can be quite slow if used with an FTS5 table created with the
+**   "detail=none" or "detail=column" option. 
+**
+** xRowid:
+**   Returns the rowid of the current row.
+**
+** xTokenize:
+**   Tokenize text using the tokenizer belonging to the FTS5 table.
+**
+** xQueryPhrase(pFts5, iPhrase, pUserData, xCallback):
+**   This API function is used to query the FTS table for phrase iPhrase
+**   of the current query. Specifically, a query equivalent to:
+**
+**       ... FROM ftstable WHERE ftstable MATCH $p ORDER BY rowid
+**
+**   with $p set to a phrase equivalent to the phrase iPhrase of the
+**   current query is executed. Any column filter that applies to
+**   phrase iPhrase of the current query is included in $p. For each 
+**   row visited, the callback function passed as the fourth argument 
+**   is invoked. The context and API objects passed to the callback 
+**   function may be used to access the properties of each matched row.
+**   Invoking Api.xUserData() returns a copy of the pointer passed as 
+**   the third argument to pUserData.
+**
+**   If parameter iPhrase is less than zero, or greater than or equal to
+**   the number of phrases in the query, as returned by xPhraseCount(),
+**   this function returns SQLITE_RANGE.
+**
+**   If the callback function returns any value other than SQLITE_OK, the
+**   query is abandoned and the xQueryPhrase function returns immediately.
+**   If the returned value is SQLITE_DONE, xQueryPhrase returns SQLITE_OK.
+**   Otherwise, the error code is propagated upwards.
+**
+**   If the query runs to completion without incident, SQLITE_OK is returned.
+**   Or, if some error occurs before the query completes or is aborted by
+**   the callback, an SQLite error code is returned.
+**
+**
+** xSetAuxdata(pFts5, pAux, xDelete)
+**
+**   Save the pointer passed as the second argument as the extension function's 
+**   "auxiliary data". The pointer may then be retrieved by the current or any
+**   future invocation of the same fts5 extension function made as part of
+**   the same MATCH query using the xGetAuxdata() API.
+**
+**   Each extension function is allocated a single auxiliary data slot for
+**   each FTS query (MATCH expression). If the extension function is invoked 
+**   more than once for a single FTS query, then all invocations share a 
+**   single auxiliary data context.
+**
+**   If there is already an auxiliary data pointer when this function is
+**   invoked, then it is replaced by the new pointer. If an xDelete callback
+**   was specified along with the original pointer, it is invoked at this
+**   point.
+**
+**   The xDelete callback, if one is specified, is also invoked on the
+**   auxiliary data pointer after the FTS5 query has finished.
+**
+**   If an error (e.g. an OOM condition) occurs within this function,
+**   the auxiliary data is set to NULL and an error code returned. If the
+**   xDelete parameter was not NULL, it is invoked on the auxiliary data
+**   pointer before returning.
+**
+**
+** xGetAuxdata(pFts5, bClear)
+**
+**   Returns the current auxiliary data pointer for the fts5 extension 
+**   function. See the xSetAuxdata() method for details.
+**
+**   If the bClear argument is non-zero, then the auxiliary data is cleared
+**   (set to NULL) before this function returns. In this case the xDelete,
+**   if any, is not invoked.
+**
+**
+** xRowCount(pFts5, pnRow)
+**
+**   This function is used to retrieve the total number of rows in the table.
+**   In other words, the same value that would be returned by:
+**
+**        SELECT count(*) FROM ftstable;
+**
+** xPhraseFirst()
+**   This function is used, along with type Fts5PhraseIter and the xPhraseNext
+**   method, to iterate through all instances of a single query phrase within
+**   the current row. This is the same information as is accessible via the
+**   xInstCount/xInst APIs. While the xInstCount/xInst APIs are more convenient
+**   to use, this API may be faster under some circumstances. To iterate 
+**   through instances of phrase iPhrase, use the following code:
+**
+**       Fts5PhraseIter iter;
+**       int iCol, iOff;
+**       for(pApi->xPhraseFirst(pFts, iPhrase, &iter, &iCol, &iOff);
+**           iCol>=0;
+**           pApi->xPhraseNext(pFts, &iter, &iCol, &iOff)
+**       ){
+**         // An instance of phrase iPhrase at offset iOff of column iCol
+**       }
+**
+**   The Fts5PhraseIter structure is defined above. Applications should not
+**   modify this structure directly - it should only be used as shown above
+**   with the xPhraseFirst() and xPhraseNext() API methods (and by
+**   xPhraseFirstColumn() and xPhraseNextColumn() as illustrated below).
+**
+**   This API can be quite slow if used with an FTS5 table created with the
+**   "detail=none" or "detail=column" option. If the FTS5 table is created 
+**   with either "detail=none" or "detail=column" and "content=" option 
+**   (i.e. if it is a contentless table), then this API always iterates
+**   through an empty set (all calls to xPhraseFirst() set iCol to -1).
+**
+**   In all cases, matches are visited in (column ASC, offset ASC) order.
+**   i.e. all those in column 0, sorted by offset, followed by those in 
+**   column 1, etc.
+**
+** xPhraseNext()
+**   See xPhraseFirst above.
+**
+** xPhraseFirstColumn()
+**   This function and xPhraseNextColumn() are similar to the xPhraseFirst()
+**   and xPhraseNext() APIs described above. The difference is that instead
+**   of iterating through all instances of a phrase in the current row, these
+**   APIs are used to iterate through the set of columns in the current row
+**   that contain one or more instances of a specified phrase. For example:
+**
+**       Fts5PhraseIter iter;
+**       int iCol;
+**       for(pApi->xPhraseFirstColumn(pFts, iPhrase, &iter, &iCol);
+**           iCol>=0;
+**           pApi->xPhraseNextColumn(pFts, &iter, &iCol)
+**       ){
+**         // Column iCol contains at least one instance of phrase iPhrase
+**       }
+**
+**   This API can be quite slow if used with an FTS5 table created with the
+**   "detail=none" option. If the FTS5 table is created with either 
+**   "detail=none" "content=" option (i.e. if it is a contentless table), 
+**   then this API always iterates through an empty set (all calls to 
+**   xPhraseFirstColumn() set iCol to -1).
+**
+**   The information accessed using this API and its companion
+**   xPhraseFirstColumn() may also be obtained using xPhraseFirst/xPhraseNext
+**   (or xInst/xInstCount). The chief advantage of this API is that it is
+**   significantly more efficient than those alternatives when used with
+**   "detail=column" tables.  
+**
+** xPhraseNextColumn()
+**   See xPhraseFirstColumn above.
+**
+** xQueryToken(pFts5, iPhrase, iToken, ppToken, pnToken)
+**   This is used to access token iToken of phrase iPhrase of the current
+**   query. Before returning, output parameter *ppToken is set to point
+**   to a buffer containing the requested token, and *pnToken to the
+**   size of this buffer in bytes.
+**
+**   If iPhrase or iToken are less than zero, or if iPhrase is greater than
+**   or equal to the number of phrases in the query as reported by 
+**   xPhraseCount(), or if iToken is equal to or greater than the number of
+**   tokens in the phrase, SQLITE_RANGE is returned and *ppToken and *pnToken
+     are both zeroed.
+**
+**   The output text is not a copy of the query text that specified the
+**   token. It is the output of the tokenizer module. For tokendata=1
+**   tables, this includes any embedded 0x00 and trailing data.
+**
+** xInstToken(pFts5, iIdx, iToken, ppToken, pnToken)
+**   This is used to access token iToken of phrase hit iIdx within the
+**   current row. If iIdx is less than zero or greater than or equal to the
+**   value returned by xInstCount(), SQLITE_RANGE is returned.  Otherwise,
+**   output variable (*ppToken) is set to point to a buffer containing the
+**   matching document token, and (*pnToken) to the size of that buffer in 
+**   bytes. 
+**
+**   The output text is not a copy of the document text that was tokenized.
+**   It is the output of the tokenizer module. For tokendata=1 tables, this 
+**   includes any embedded 0x00 and trailing data.
+**
+**   This API may be slow in some cases if the token identified by parameters 
+**   iIdx and iToken matched a prefix token in the query. In most cases, the
+**   first call to this API for each prefix token in the query is forced
+**   to scan the portion of the full-text index that matches the prefix
+**   token to collect the extra data required by this API. If the prefix
+**   token matches a large number of token instances in the document set,
+**   this may be a performance problem. 
+**
+**   If the user knows in advance that a query may use this API for a
+**   prefix token, FTS5 may be configured to collect all required data as part
+**   of the initial querying of the full-text index, avoiding the second scan
+**   entirely. This also causes prefix queries that do not use this API to 
+**   run more slowly and use more memory. FTS5 may be configured in this way
+**   either on a per-table basis using the [FTS5 insttoken | 'insttoken'] 
+**   option, or on a per-query basis using the 
+**   [fts5_insttoken | fts5_insttoken()] user function.
+**
+**   This API can be quite slow if used with an FTS5 table created with the
+**   "detail=none" or "detail=column" option. 
+**
+** xColumnLocale(pFts5, iIdx, pzLocale, pnLocale)
+**   If parameter iCol is less than zero, or greater than or equal to the
+**   number of columns in the table, SQLITE_RANGE is returned.
+**
+**   Otherwise, this function attempts to retrieve the locale associated
+**   with column iCol of the current row. Usually, there is no associated
+**   locale, and output parameters (*pzLocale) and (*pnLocale) are set
+**   to NULL and 0, respectively. However, if the fts5_locale() function
+**   was used to associate a locale with the value when it was inserted
+**   into the fts5 table, then (*pzLocale) is set to point to a nul-terminated
+**   buffer containing the name of the locale in utf-8 encoding. (*pnLocale) 
+**   is set to the size in bytes of the buffer, not including the 
+**   nul-terminator.
+**
+**   If successful, SQLITE_OK is returned. Or, if an error occurs, an
+**   SQLite error code is returned. The final value of the output parameters
+**   is undefined in this case.
+**
+** xTokenize_v2:
+**   Tokenize text using the tokenizer belonging to the FTS5 table. This
+**   API is the same as the xTokenize() API, except that it allows a tokenizer
+**   locale to be specified.
+*/
+struct Fts5ExtensionApi {
+  int iVersion;                   /* Currently always set to 4 */
+
+  void *(*xUserData)(Fts5Context*);
+
+  int (*xColumnCount)(Fts5Context*);
+  int (*xRowCount)(Fts5Context*, sqlite3_int64 *pnRow);
+  int (*xColumnTotalSize)(Fts5Context*, int iCol, sqlite3_int64 *pnToken);
+
+  int (*xTokenize)(Fts5Context*, 
+    const char *pText, int nText, /* Text to tokenize */
+    void *pCtx,                   /* Context passed to xToken() */
+    int (*xToken)(void*, int, const char*, int, int, int)       /* Callback */
+  );
+
+  int (*xPhraseCount)(Fts5Context*);
+  int (*xPhraseSize)(Fts5Context*, int iPhrase);
+
+  int (*xInstCount)(Fts5Context*, int *pnInst);
+  int (*xInst)(Fts5Context*, int iIdx, int *piPhrase, int *piCol, int *piOff);
+
+  sqlite3_int64 (*xRowid)(Fts5Context*);
+  int (*xColumnText)(Fts5Context*, int iCol, const char **pz, int *pn);
+  int (*xColumnSize)(Fts5Context*, int iCol, int *pnToken);
+
+  int (*xQueryPhrase)(Fts5Context*, int iPhrase, void *pUserData,
+    int(*)(const Fts5ExtensionApi*,Fts5Context*,void*)
+  );
+  int (*xSetAuxdata)(Fts5Context*, void *pAux, void(*xDelete)(void*));
+  void *(*xGetAuxdata)(Fts5Context*, int bClear);
+
+  int (*xPhraseFirst)(Fts5Context*, int iPhrase, Fts5PhraseIter*, int*, int*);
+  void (*xPhraseNext)(Fts5Context*, Fts5PhraseIter*, int *piCol, int *piOff);
+
+  int (*xPhraseFirstColumn)(Fts5Context*, int iPhrase, Fts5PhraseIter*, int*);
+  void (*xPhraseNextColumn)(Fts5Context*, Fts5PhraseIter*, int *piCol);
+
+  /* Below this point are iVersion>=3 only */
+  int (*xQueryToken)(Fts5Context*, 
+      int iPhrase, int iToken, 
+      const char **ppToken, int *pnToken
+  );
+  int (*xInstToken)(Fts5Context*, int iIdx, int iToken, const char**, int*);
+
+  /* Below this point are iVersion>=4 only */
+  int (*xColumnLocale)(Fts5Context*, int iCol, const char **pz, int *pn);
+  int (*xTokenize_v2)(Fts5Context*,
+    const char *pText, int nText,      /* Text to tokenize */
+    const char *pLocale, int nLocale,  /* Locale to pass to tokenizer */
+    void *pCtx,                        /* Context passed to xToken() */
+    int (*xToken)(void*, int, const char*, int, int, int)       /* Callback */
+  );
+};
+
+/* 
+** CUSTOM AUXILIARY FUNCTIONS
+*************************************************************************/
+
+/*************************************************************************
+** CUSTOM TOKENIZERS
+**
+** Applications may also register custom tokenizer types. A tokenizer 
+** is registered by providing fts5 with a populated instance of the 
+** following structure. All structure methods must be defined, setting
+** any member of the fts5_tokenizer struct to NULL leads to undefined
+** behaviour. The structure methods are expected to function as follows:
+**
+** xCreate:
+**   This function is used to allocate and initialize a tokenizer instance.
+**   A tokenizer instance is required to actually tokenize text.
+**
+**   The first argument passed to this function is a copy of the (void*)
+**   pointer provided by the application when the fts5_tokenizer_v2 object
+**   was registered with FTS5 (the third argument to xCreateTokenizer()). 
+**   The second and third arguments are an array of nul-terminated strings
+**   containing the tokenizer arguments, if any, specified following the
+**   tokenizer name as part of the CREATE VIRTUAL TABLE statement used
+**   to create the FTS5 table.
+**
+**   The final argument is an output variable. If successful, (*ppOut) 
+**   should be set to point to the new tokenizer handle and SQLITE_OK
+**   returned. If an error occurs, some value other than SQLITE_OK should
+**   be returned. In this case, fts5 assumes that the final value of *ppOut 
+**   is undefined.
+**
+** xDelete:
+**   This function is invoked to delete a tokenizer handle previously
+**   allocated using xCreate(). Fts5 guarantees that this function will
+**   be invoked exactly once for each successful call to xCreate().
+**
+** xTokenize:
+**   This function is expected to tokenize the nText byte string indicated 
+**   by argument pText. pText may or may not be nul-terminated. The first
+**   argument passed to this function is a pointer to an Fts5Tokenizer object
+**   returned by an earlier call to xCreate().
+**
+**   The third argument indicates the reason that FTS5 is requesting
+**   tokenization of the supplied text. This is always one of the following
+**   four values:
+**
+**   <ul><li> <b>FTS5_TOKENIZE_DOCUMENT</b> - A document is being inserted into
+**            or removed from the FTS table. The tokenizer is being invoked to
+**            determine the set of tokens to add to (or delete from) the
+**            FTS index.
+**
+**       <li> <b>FTS5_TOKENIZE_QUERY</b> - A MATCH query is being executed 
+**            against the FTS index. The tokenizer is being called to tokenize 
+**            a bareword or quoted string specified as part of the query.
+**
+**       <li> <b>(FTS5_TOKENIZE_QUERY | FTS5_TOKENIZE_PREFIX)</b> - Same as
+**            FTS5_TOKENIZE_QUERY, except that the bareword or quoted string is
+**            followed by a "*" character, indicating that the last token
+**            returned by the tokenizer will be treated as a token prefix.
+**
+**       <li> <b>FTS5_TOKENIZE_AUX</b> - The tokenizer is being invoked to 
+**            satisfy an fts5_api.xTokenize() request made by an auxiliary
+**            function. Or an fts5_api.xColumnSize() request made by the same
+**            on a columnsize=0 database.  
+**   </ul>
+**
+**   The sixth and seventh arguments passed to xTokenize() - pLocale and
+**   nLocale - are a pointer to a buffer containing the locale to use for
+**   tokenization (e.g. "en_US") and its size in bytes, respectively. The
+**   pLocale buffer is not nul-terminated. pLocale may be passed NULL (in
+**   which case nLocale is always 0) to indicate that the tokenizer should
+**   use its default locale.
+**
+**   For each token in the input string, the supplied callback xToken() must
+**   be invoked. The first argument to it should be a copy of the pointer
+**   passed as the second argument to xTokenize(). The third and fourth
+**   arguments are a pointer to a buffer containing the token text, and the
+**   size of the token in bytes. The 4th and 5th arguments are the byte offsets
+**   of the first byte of and first byte immediately following the text from
+**   which the token is derived within the input.
+**
+**   The second argument passed to the xToken() callback ("tflags") should
+**   normally be set to 0. The exception is if the tokenizer supports 
+**   synonyms. In this case see the discussion below for details.
+**
+**   FTS5 assumes the xToken() callback is invoked for each token in the 
+**   order that they occur within the input text.
+**
+**   If an xToken() callback returns any value other than SQLITE_OK, then
+**   the tokenization should be abandoned and the xTokenize() method should
+**   immediately return a copy of the xToken() return value. Or, if the
+**   input buffer is exhausted, xTokenize() should return SQLITE_OK. Finally,
+**   if an error occurs with the xTokenize() implementation itself, it
+**   may abandon the tokenization and return any error code other than
+**   SQLITE_OK or SQLITE_DONE.
+**
+**   If the tokenizer is registered using an fts5_tokenizer_v2 object,
+**   then the xTokenize() method has two additional arguments - pLocale
+**   and nLocale. These specify the locale that the tokenizer should use
+**   for the current request. If pLocale and nLocale are both 0, then the
+**   tokenizer should use its default locale. Otherwise, pLocale points to
+**   an nLocale byte buffer containing the name of the locale to use as utf-8 
+**   text. pLocale is not nul-terminated.
+**
+** FTS5_TOKENIZER
+**
+** There is also an fts5_tokenizer object. This is an older, deprecated,
+** version of fts5_tokenizer_v2. It is similar except that:
+**
+**  <ul>
+**    <li> There is no "iVersion" field, and
+**    <li> The xTokenize() method does not take a locale argument.
+**  </ul>
+**
+** Legacy fts5_tokenizer tokenizers must be registered using the
+** legacy xCreateTokenizer() function, instead of xCreateTokenizer_v2().
+**
+** Tokenizer implementations registered using either API may be retrieved
+** using both xFindTokenizer() and xFindTokenizer_v2().
+**
+** SYNONYM SUPPORT
+**
+**   Custom tokenizers may also support synonyms. Consider a case in which a
+**   user wishes to query for a phrase such as "first place". Using the 
+**   built-in tokenizers, the FTS5 query 'first + place' will match instances
+**   of "first place" within the document set, but not alternative forms
+**   such as "1st place". In some applications, it would be better to match
+**   all instances of "first place" or "1st place" regardless of which form
+**   the user specified in the MATCH query text.
+**
+**   There are several ways to approach this in FTS5:
+**
+**   <ol><li> By mapping all synonyms to a single token. In this case, using
+**            the above example, this means that the tokenizer returns the
+**            same token for inputs "first" and "1st". Say that token is in
+**            fact "first", so that when the user inserts the document "I won
+**            1st place" entries are added to the index for tokens "i", "won",
+**            "first" and "place". If the user then queries for '1st + place',
+**            the tokenizer substitutes "first" for "1st" and the query works
+**            as expected.
+**
+**       <li> By querying the index for all synonyms of each query term
+**            separately. In this case, when tokenizing query text, the
+**            tokenizer may provide multiple synonyms for a single term 
+**            within the document. FTS5 then queries the index for each 
+**            synonym individually. For example, faced with the query:
+**
+**   <codeblock>
+**     ... MATCH 'first place'</codeblock>
+**
+**            the tokenizer offers both "1st" and "first" as synonyms for the
+**            first token in the MATCH query and FTS5 effectively runs a query 
+**            similar to:
+**
+**   <codeblock>
+**     ... MATCH '(first OR 1st) place'</codeblock>
+**
+**            except that, for the purposes of auxiliary functions, the query
+**            still appears to contain just two phrases - "(first OR 1st)" 
+**            being treated as a single phrase.
+**
+**       <li> By adding multiple synonyms for a single term to the FTS index.
+**            Using this method, when tokenizing document text, the tokenizer
+**            provides multiple synonyms for each token. So that when a 
+**            document such as "I won first place" is tokenized, entries are
+**            added to the FTS index for "i", "won", "first", "1st" and
+**            "place".
+**
+**            This way, even if the tokenizer does not provide synonyms
+**            when tokenizing query text (it should not - to do so would be
+**            inefficient), it doesn't matter if the user queries for 
+**            'first + place' or '1st + place', as there are entries in the
+**            FTS index corresponding to both forms of the first token.
+**   </ol>
+**
+**   Whether it is parsing document or query text, any call to xToken that
+**   specifies a <i>tflags</i> argument with the FTS5_TOKEN_COLOCATED bit
+**   is considered to supply a synonym for the previous token. For example,
+**   when parsing the document "I won first place", a tokenizer that supports
+**   synonyms would call xToken() 5 times, as follows:
+**
+**   <codeblock>
+**       xToken(pCtx, 0, "i",                      1,  0,  1);
+**       xToken(pCtx, 0, "won",                    3,  2,  5);
+**       xToken(pCtx, 0, "first",                  5,  6, 11);
+**       xToken(pCtx, FTS5_TOKEN_COLOCATED, "1st", 3,  6, 11);
+**       xToken(pCtx, 0, "place",                  5, 12, 17);
+**</codeblock>
+**
+**   It is an error to specify the FTS5_TOKEN_COLOCATED flag the first time
+**   xToken() is called. Multiple synonyms may be specified for a single token
+**   by making multiple calls to xToken(FTS5_TOKEN_COLOCATED) in sequence. 
+**   There is no limit to the number of synonyms that may be provided for a
+**   single token.
+**
+**   In many cases, method (1) above is the best approach. It does not add 
+**   extra data to the FTS index or require FTS5 to query for multiple terms,
+**   so it is efficient in terms of disk space and query speed. However, it
+**   does not support prefix queries very well. If, as suggested above, the
+**   token "first" is substituted for "1st" by the tokenizer, then the query:
+**
+**   <codeblock>
+**     ... MATCH '1s*'</codeblock>
+**
+**   will not match documents that contain the token "1st" (as the tokenizer
+**   will probably not map "1s" to any prefix of "first").
+**
+**   For full prefix support, method (3) may be preferred. In this case, 
+**   because the index contains entries for both "first" and "1st", prefix
+**   queries such as 'fi*' or '1s*' will match correctly. However, because
+**   extra entries are added to the FTS index, this method uses more space
+**   within the database.
+**
+**   Method (2) offers a midpoint between (1) and (3). Using this method,
+**   a query such as '1s*' will match documents that contain the literal 
+**   token "1st", but not "first" (assuming the tokenizer is not able to
+**   provide synonyms for prefixes). However, a non-prefix query like '1st'
+**   will match against "1st" and "first". This method does not require
+**   extra disk space, as no extra entries are added to the FTS index. 
+**   On the other hand, it may require more CPU cycles to run MATCH queries,
+**   as separate queries of the FTS index are required for each synonym.
+**
+**   When using methods (2) or (3), it is important that the tokenizer only
+**   provide synonyms when tokenizing document text (method (3)) or query
+**   text (method (2)), not both. Doing so will not cause any errors, but is
+**   inefficient.
+*/
+typedef struct Fts5Tokenizer Fts5Tokenizer;
+typedef struct fts5_tokenizer_v2 fts5_tokenizer_v2;
+struct fts5_tokenizer_v2 {
+  int iVersion;             /* Currently always 2 */
+
+  int (*xCreate)(void*, const char **azArg, int nArg, Fts5Tokenizer **ppOut);
+  void (*xDelete)(Fts5Tokenizer*);
+  int (*xTokenize)(Fts5Tokenizer*, 
+      void *pCtx,
+      int flags,            /* Mask of FTS5_TOKENIZE_* flags */
+      const char *pText, int nText, 
+      const char *pLocale, int nLocale,
+      int (*xToken)(
+        void *pCtx,         /* Copy of 2nd argument to xTokenize() */
+        int tflags,         /* Mask of FTS5_TOKEN_* flags */
+        const char *pToken, /* Pointer to buffer containing token */
+        int nToken,         /* Size of token in bytes */
+        int iStart,         /* Byte offset of token within input text */
+        int iEnd            /* Byte offset of end of token within input text */
+      )
+  );
+};
+
+/*
+** New code should use the fts5_tokenizer_v2 type to define tokenizer
+** implementations. The following type is included for legacy applications
+** that still use it.
+*/
+typedef struct fts5_tokenizer fts5_tokenizer;
+struct fts5_tokenizer {
+  int (*xCreate)(void*, const char **azArg, int nArg, Fts5Tokenizer **ppOut);
+  void (*xDelete)(Fts5Tokenizer*);
+  int (*xTokenize)(Fts5Tokenizer*, 
+      void *pCtx,
+      int flags,            /* Mask of FTS5_TOKENIZE_* flags */
+      const char *pText, int nText, 
+      int (*xToken)(
+        void *pCtx,         /* Copy of 2nd argument to xTokenize() */
+        int tflags,         /* Mask of FTS5_TOKEN_* flags */
+        const char *pToken, /* Pointer to buffer containing token */
+        int nToken,         /* Size of token in bytes */
+        int iStart,         /* Byte offset of token within input text */
+        int iEnd            /* Byte offset of end of token within input text */
+      )
+  );
+};
+
+
+/* Flags that may be passed as the third argument to xTokenize() */
+#define FTS5_TOKENIZE_QUERY     0x0001
+#define FTS5_TOKENIZE_PREFIX    0x0002
+#define FTS5_TOKENIZE_DOCUMENT  0x0004
+#define FTS5_TOKENIZE_AUX       0x0008
+
+/* Flags that may be passed by the tokenizer implementation back to FTS5
+** as the third argument to the supplied xToken callback. */
+#define FTS5_TOKEN_COLOCATED    0x0001      /* Same position as prev. token */
+
+/*
+** END OF CUSTOM TOKENIZERS
+*************************************************************************/
+
+/*************************************************************************
+** FTS5 EXTENSION REGISTRATION API
+*/
+typedef struct fts5_api fts5_api;
+struct fts5_api {
+  int iVersion;                   /* Currently always set to 3 */
+
+  /* Create a new tokenizer */
+  int (*xCreateTokenizer)(
+    fts5_api *pApi,
+    const char *zName,
+    void *pUserData,
+    fts5_tokenizer *pTokenizer,
+    void (*xDestroy)(void*)
+  );
+
+  /* Find an existing tokenizer */
+  int (*xFindTokenizer)(
+    fts5_api *pApi,
+    const char *zName,
+    void **ppUserData,
+    fts5_tokenizer *pTokenizer
+  );
+
+  /* Create a new auxiliary function */
+  int (*xCreateFunction)(
+    fts5_api *pApi,
+    const char *zName,
+    void *pUserData,
+    fts5_extension_function xFunction,
+    void (*xDestroy)(void*)
+  );
+
+  /* APIs below this point are only available if iVersion>=3 */
+
+  /* Create a new tokenizer */
+  int (*xCreateTokenizer_v2)(
+    fts5_api *pApi,
+    const char *zName,
+    void *pUserData,
+    fts5_tokenizer_v2 *pTokenizer,
+    void (*xDestroy)(void*)
+  );
+
+  /* Find an existing tokenizer */
+  int (*xFindTokenizer_v2)(
+    fts5_api *pApi,
+    const char *zName,
+    void **ppUserData,
+    fts5_tokenizer_v2 **ppTokenizer
+  );
+};
+
+/*
+** END OF REGISTRATION API
+*************************************************************************/
+
+#ifdef __cplusplus
+}  /* end of the 'extern "C"' block */
+#endif
+
+#endif /* _FTS5_H */
diff --git a/ext/fts5/fts5Int.h b/ext/fts5/fts5Int.h
new file mode 100644
index 0000000000000000000000000000000000000000..832f9ad477ed65ce4369edc9c5930ba47139b96c
--- /dev/null
+++ b/ext/fts5/fts5Int.h
@@ -0,0 +1,946 @@
+/*
+** 2014 May 31
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+*/
+#ifndef _FTS5INT_H
+#define _FTS5INT_H
+
+#include "fts5.h"
+#include "sqlite3ext.h"
+SQLITE_EXTENSION_INIT1
+
+#include <string.h>
+#include <assert.h>
+
+#ifndef SQLITE_AMALGAMATION
+
+typedef unsigned char  u8;
+typedef unsigned int   u32;
+typedef unsigned short u16;
+typedef short i16;
+typedef sqlite3_int64 i64;
+typedef sqlite3_uint64 u64;
+
+#ifndef ArraySize
+# define ArraySize(x) ((int)(sizeof(x) / sizeof(x[0])))
+#endif
+
+#define testcase(x)
+
+#if defined(SQLITE_COVERAGE_TEST) || defined(SQLITE_MUTATION_TEST)
+# define SQLITE_OMIT_AUXILIARY_SAFETY_CHECKS 1
+#endif
+#if defined(SQLITE_OMIT_AUXILIARY_SAFETY_CHECKS)
+# define ALWAYS(X)      (1)
+# define NEVER(X)       (0)
+#elif !defined(NDEBUG)
+# define ALWAYS(X)      ((X)?1:(assert(0),0))
+# define NEVER(X)       ((X)?(assert(0),1):0)
+#else
+# define ALWAYS(X)      (X)
+# define NEVER(X)       (X)
+#endif
+
+#define MIN(x,y) (((x) < (y)) ? (x) : (y))
+#define MAX(x,y) (((x) > (y)) ? (x) : (y))
+
+/*
+** Constants for the largest and smallest possible 64-bit signed integers.
+*/
+# define LARGEST_INT64  (0xffffffff|(((i64)0x7fffffff)<<32))
+# define SMALLEST_INT64 (((i64)-1) - LARGEST_INT64)
+
+/* The uptr type is an unsigned integer large enough to hold a pointer
+*/
+#if defined(HAVE_STDINT_H)
+  typedef uintptr_t uptr;
+#elif SQLITE_PTRSIZE==4
+  typedef u32 uptr;
+#else
+  typedef u64 uptr;
+#endif
+
+#ifdef SQLITE_4_BYTE_ALIGNED_MALLOC
+# define EIGHT_BYTE_ALIGNMENT(X)   ((((uptr)(X) - (uptr)0)&3)==0)
+#else
+# define EIGHT_BYTE_ALIGNMENT(X)   ((((uptr)(X) - (uptr)0)&7)==0)
+#endif
+
+#endif
+
+/* Truncate very long tokens to this many bytes. Hard limit is 
+** (65536-1-1-4-9)==65521 bytes. The limiting factor is the 16-bit offset
+** field that occurs at the start of each leaf page (see fts5_index.c). */
+#define FTS5_MAX_TOKEN_SIZE 32768
+
+/*
+** Maximum number of prefix indexes on single FTS5 table. This must be
+** less than 32. If it is set to anything large than that, an #error
+** directive in fts5_index.c will cause the build to fail.
+*/
+#define FTS5_MAX_PREFIX_INDEXES 31
+
+/*
+** Maximum segments permitted in a single index 
+*/
+#define FTS5_MAX_SEGMENT 2000
+
+#define FTS5_DEFAULT_NEARDIST 10
+#define FTS5_DEFAULT_RANK     "bm25"
+
+/* Name of rank and rowid columns */
+#define FTS5_RANK_NAME "rank"
+#define FTS5_ROWID_NAME "rowid"
+
+#ifdef SQLITE_DEBUG
+# define FTS5_CORRUPT sqlite3Fts5Corrupt()
+int sqlite3Fts5Corrupt(void);
+#else
+# define FTS5_CORRUPT SQLITE_CORRUPT_VTAB
+#endif
+
+/*
+** The assert_nc() macro is similar to the assert() macro, except that it
+** is used for assert() conditions that are true only if it can be 
+** guranteed that the database is not corrupt.
+*/
+#ifdef SQLITE_DEBUG
+extern int sqlite3_fts5_may_be_corrupt;
+# define assert_nc(x) assert(sqlite3_fts5_may_be_corrupt || (x))
+#else
+# define assert_nc(x) assert(x)
+#endif
+
+/*
+** A version of memcmp() that does not cause asan errors if one of the pointer
+** parameters is NULL and the number of bytes to compare is zero.
+*/
+#define fts5Memcmp(s1, s2, n) ((n)<=0 ? 0 : memcmp((s1), (s2), (n)))
+
+/* Mark a function parameter as unused, to suppress nuisance compiler
+** warnings. */
+#ifndef UNUSED_PARAM
+# define UNUSED_PARAM(X)  (void)(X)
+#endif
+
+#ifndef UNUSED_PARAM2
+# define UNUSED_PARAM2(X, Y)  (void)(X), (void)(Y)
+#endif
+
+typedef struct Fts5Global Fts5Global;
+typedef struct Fts5Colset Fts5Colset;
+
+/* If a NEAR() clump or phrase may only match a specific set of columns, 
+** then an object of the following type is used to record the set of columns.
+** Each entry in the aiCol[] array is a column that may be matched.
+**
+** This object is used by fts5_expr.c and fts5_index.c.
+*/
+struct Fts5Colset {
+  int nCol;
+  int aiCol[1];
+};
+
+
+
+/**************************************************************************
+** Interface to code in fts5_config.c. fts5_config.c contains contains code
+** to parse the arguments passed to the CREATE VIRTUAL TABLE statement.
+*/
+
+typedef struct Fts5Config Fts5Config;
+typedef struct Fts5TokenizerConfig Fts5TokenizerConfig;
+
+struct Fts5TokenizerConfig {
+  Fts5Tokenizer *pTok;
+  fts5_tokenizer_v2 *pApi2;
+  fts5_tokenizer *pApi1;
+  const char **azArg;
+  int nArg;
+  int ePattern;                   /* FTS_PATTERN_XXX constant */
+  const char *pLocale;            /* Current locale to use */
+  int nLocale;                    /* Size of pLocale in bytes */
+};
+
+/*
+** An instance of the following structure encodes all information that can
+** be gleaned from the CREATE VIRTUAL TABLE statement.
+**
+** And all information loaded from the %_config table.
+**
+** nAutomerge:
+**   The minimum number of segments that an auto-merge operation should
+**   attempt to merge together. A value of 1 sets the object to use the 
+**   compile time default. Zero disables auto-merge altogether.
+**
+** bContentlessDelete:
+**   True if the contentless_delete option was present in the CREATE 
+**   VIRTUAL TABLE statement.
+**
+** zContent:
+**
+** zContentRowid:
+**   The value of the content_rowid= option, if one was specified. Or 
+**   the string "rowid" otherwise. This text is not quoted - if it is
+**   used as part of an SQL statement it needs to be quoted appropriately.
+**
+** zContentExprlist:
+**
+** pzErrmsg:
+**   This exists in order to allow the fts5_index.c module to return a 
+**   decent error message if it encounters a file-format version it does
+**   not understand.
+**
+** bColumnsize:
+**   True if the %_docsize table is created.
+**
+** bPrefixIndex:
+**   This is only used for debugging. If set to false, any prefix indexes
+**   are ignored. This value is configured using:
+**
+**       INSERT INTO tbl(tbl, rank) VALUES('prefix-index', $bPrefixIndex);
+**
+** bLocale:
+**   Set to true if locale=1 was specified when the table was created.
+*/
+struct Fts5Config {
+  sqlite3 *db;                    /* Database handle */
+  Fts5Global *pGlobal;            /* Global fts5 object for handle db */
+  char *zDb;                      /* Database holding FTS index (e.g. "main") */
+  char *zName;                    /* Name of FTS index */
+  int nCol;                       /* Number of columns */
+  char **azCol;                   /* Column names */
+  u8 *abUnindexed;                /* True for unindexed columns */
+  int nPrefix;                    /* Number of prefix indexes */
+  int *aPrefix;                   /* Sizes in bytes of nPrefix prefix indexes */
+  int eContent;                   /* An FTS5_CONTENT value */
+  int bContentlessDelete;         /* "contentless_delete=" option (dflt==0) */
+  int bContentlessUnindexed;      /* "contentless_unindexed=" option (dflt=0) */
+  char *zContent;                 /* content table */ 
+  char *zContentRowid;            /* "content_rowid=" option value */ 
+  int bColumnsize;                /* "columnsize=" option value (dflt==1) */
+  int bTokendata;                 /* "tokendata=" option value (dflt==0) */
+  int bLocale;                    /* "locale=" option value (dflt==0) */
+  int eDetail;                    /* FTS5_DETAIL_XXX value */
+  char *zContentExprlist;
+  Fts5TokenizerConfig t;
+  int bLock;                      /* True when table is preparing statement */
+  
+
+  /* Values loaded from the %_config table */
+  int iVersion;                   /* fts5 file format 'version' */
+  int iCookie;                    /* Incremented when %_config is modified */
+  int pgsz;                       /* Approximate page size used in %_data */
+  int nAutomerge;                 /* 'automerge' setting */
+  int nCrisisMerge;               /* Maximum allowed segments per level */
+  int nUsermerge;                 /* 'usermerge' setting */
+  int nHashSize;                  /* Bytes of memory for in-memory hash */
+  char *zRank;                    /* Name of rank function */
+  char *zRankArgs;                /* Arguments to rank function */
+  int bSecureDelete;              /* 'secure-delete' */
+  int nDeleteMerge;               /* 'deletemerge' */
+  int bPrefixInsttoken;           /* 'prefix-insttoken' */
+
+  /* If non-NULL, points to sqlite3_vtab.base.zErrmsg. Often NULL. */
+  char **pzErrmsg;
+
+#ifdef SQLITE_DEBUG
+  int bPrefixIndex;               /* True to use prefix-indexes */
+#endif
+};
+
+/* Current expected value of %_config table 'version' field. And
+** the expected version if the 'secure-delete' option has ever been
+** set on the table.  */
+#define FTS5_CURRENT_VERSION               4
+#define FTS5_CURRENT_VERSION_SECUREDELETE  5
+
+#define FTS5_CONTENT_NORMAL    0
+#define FTS5_CONTENT_NONE      1
+#define FTS5_CONTENT_EXTERNAL  2
+#define FTS5_CONTENT_UNINDEXED 3
+
+#define FTS5_DETAIL_FULL      0
+#define FTS5_DETAIL_NONE      1
+#define FTS5_DETAIL_COLUMNS   2
+
+#define FTS5_PATTERN_NONE     0
+#define FTS5_PATTERN_LIKE     65  /* matches SQLITE_INDEX_CONSTRAINT_LIKE */
+#define FTS5_PATTERN_GLOB     66  /* matches SQLITE_INDEX_CONSTRAINT_GLOB */
+
+int sqlite3Fts5ConfigParse(
+    Fts5Global*, sqlite3*, int, const char **, Fts5Config**, char**
+);
+void sqlite3Fts5ConfigFree(Fts5Config*);
+
+int sqlite3Fts5ConfigDeclareVtab(Fts5Config *pConfig);
+
+int sqlite3Fts5Tokenize(
+  Fts5Config *pConfig,            /* FTS5 Configuration object */
+  int flags,                      /* FTS5_TOKENIZE_* flags */
+  const char *pText, int nText,   /* Text to tokenize */
+  void *pCtx,                     /* Context passed to xToken() */
+  int (*xToken)(void*, int, const char*, int, int, int)    /* Callback */
+);
+
+void sqlite3Fts5Dequote(char *z);
+
+/* Load the contents of the %_config table */
+int sqlite3Fts5ConfigLoad(Fts5Config*, int);
+
+/* Set the value of a single config attribute */
+int sqlite3Fts5ConfigSetValue(Fts5Config*, const char*, sqlite3_value*, int*);
+
+int sqlite3Fts5ConfigParseRank(const char*, char**, char**);
+
+void sqlite3Fts5ConfigErrmsg(Fts5Config *pConfig, const char *zFmt, ...);
+
+/*
+** End of interface to code in fts5_config.c.
+**************************************************************************/
+
+/**************************************************************************
+** Interface to code in fts5_buffer.c.
+*/
+
+/*
+** Buffer object for the incremental building of string data.
+*/
+typedef struct Fts5Buffer Fts5Buffer;
+struct Fts5Buffer {
+  u8 *p;
+  int n;
+  int nSpace;
+};
+
+int sqlite3Fts5BufferSize(int*, Fts5Buffer*, u32);
+void sqlite3Fts5BufferAppendVarint(int*, Fts5Buffer*, i64);
+void sqlite3Fts5BufferAppendBlob(int*, Fts5Buffer*, u32, const u8*);
+void sqlite3Fts5BufferAppendString(int *, Fts5Buffer*, const char*);
+void sqlite3Fts5BufferFree(Fts5Buffer*);
+void sqlite3Fts5BufferZero(Fts5Buffer*);
+void sqlite3Fts5BufferSet(int*, Fts5Buffer*, int, const u8*);
+void sqlite3Fts5BufferAppendPrintf(int *, Fts5Buffer*, char *zFmt, ...);
+
+char *sqlite3Fts5Mprintf(int *pRc, const char *zFmt, ...);
+
+#define fts5BufferZero(x)             sqlite3Fts5BufferZero(x)
+#define fts5BufferAppendVarint(a,b,c) sqlite3Fts5BufferAppendVarint(a,b,(i64)c)
+#define fts5BufferFree(a)             sqlite3Fts5BufferFree(a)
+#define fts5BufferAppendBlob(a,b,c,d) sqlite3Fts5BufferAppendBlob(a,b,c,d)
+#define fts5BufferSet(a,b,c,d)        sqlite3Fts5BufferSet(a,b,c,d)
+
+#define fts5BufferGrow(pRc,pBuf,nn) ( \
+  (u32)((pBuf)->n) + (u32)(nn) <= (u32)((pBuf)->nSpace) ? 0 : \
+    sqlite3Fts5BufferSize((pRc),(pBuf),(nn)+(pBuf)->n) \
+)
+
+/* Write and decode big-endian 32-bit integer values */
+void sqlite3Fts5Put32(u8*, int);
+int sqlite3Fts5Get32(const u8*);
+
+#define FTS5_POS2COLUMN(iPos) (int)((iPos >> 32) & 0x7FFFFFFF)
+#define FTS5_POS2OFFSET(iPos) (int)(iPos & 0x7FFFFFFF)
+
+typedef struct Fts5PoslistReader Fts5PoslistReader;
+struct Fts5PoslistReader {
+  /* Variables used only by sqlite3Fts5PoslistIterXXX() functions. */
+  const u8 *a;                    /* Position list to iterate through */
+  int n;                          /* Size of buffer at a[] in bytes */
+  int i;                          /* Current offset in a[] */
+
+  u8 bFlag;                       /* For client use (any custom purpose) */
+
+  /* Output variables */
+  u8 bEof;                        /* Set to true at EOF */
+  i64 iPos;                       /* (iCol<<32) + iPos */
+};
+int sqlite3Fts5PoslistReaderInit(
+  const u8 *a, int n,             /* Poslist buffer to iterate through */
+  Fts5PoslistReader *pIter        /* Iterator object to initialize */
+);
+int sqlite3Fts5PoslistReaderNext(Fts5PoslistReader*);
+
+typedef struct Fts5PoslistWriter Fts5PoslistWriter;
+struct Fts5PoslistWriter {
+  i64 iPrev;
+};
+int sqlite3Fts5PoslistWriterAppend(Fts5Buffer*, Fts5PoslistWriter*, i64);
+void sqlite3Fts5PoslistSafeAppend(Fts5Buffer*, i64*, i64);
+
+int sqlite3Fts5PoslistNext64(
+  const u8 *a, int n,             /* Buffer containing poslist */
+  int *pi,                        /* IN/OUT: Offset within a[] */
+  i64 *piOff                      /* IN/OUT: Current offset */
+);
+
+/* Malloc utility */
+void *sqlite3Fts5MallocZero(int *pRc, sqlite3_int64 nByte);
+char *sqlite3Fts5Strndup(int *pRc, const char *pIn, int nIn);
+
+/* Character set tests (like isspace(), isalpha() etc.) */
+int sqlite3Fts5IsBareword(char t);
+
+
+/* Bucket of terms object used by the integrity-check in offsets=0 mode. */
+typedef struct Fts5Termset Fts5Termset;
+int sqlite3Fts5TermsetNew(Fts5Termset**);
+int sqlite3Fts5TermsetAdd(Fts5Termset*, int, const char*, int, int *pbPresent);
+void sqlite3Fts5TermsetFree(Fts5Termset*);
+
+/*
+** End of interface to code in fts5_buffer.c.
+**************************************************************************/
+
+/**************************************************************************
+** Interface to code in fts5_index.c. fts5_index.c contains contains code
+** to access the data stored in the %_data table.
+*/
+
+typedef struct Fts5Index Fts5Index;
+typedef struct Fts5IndexIter Fts5IndexIter;
+
+struct Fts5IndexIter {
+  i64 iRowid;
+  const u8 *pData;
+  int nData;
+  u8 bEof;
+};
+
+#define sqlite3Fts5IterEof(x) ((x)->bEof)
+
+/*
+** Values used as part of the flags argument passed to IndexQuery().
+*/
+#define FTS5INDEX_QUERY_PREFIX      0x0001  /* Prefix query */
+#define FTS5INDEX_QUERY_DESC        0x0002  /* Docs in descending rowid order */
+#define FTS5INDEX_QUERY_TEST_NOIDX  0x0004  /* Do not use prefix index */
+#define FTS5INDEX_QUERY_SCAN        0x0008  /* Scan query (fts5vocab) */
+
+/* The following are used internally by the fts5_index.c module. They are
+** defined here only to make it easier to avoid clashes with the flags
+** above. */
+#define FTS5INDEX_QUERY_SKIPEMPTY   0x0010
+#define FTS5INDEX_QUERY_NOOUTPUT    0x0020
+#define FTS5INDEX_QUERY_SKIPHASH    0x0040
+#define FTS5INDEX_QUERY_NOTOKENDATA 0x0080
+#define FTS5INDEX_QUERY_SCANONETERM 0x0100
+
+/*
+** Create/destroy an Fts5Index object.
+*/
+int sqlite3Fts5IndexOpen(Fts5Config *pConfig, int bCreate, Fts5Index**, char**);
+int sqlite3Fts5IndexClose(Fts5Index *p);
+
+/*
+** Return a simple checksum value based on the arguments.
+*/
+u64 sqlite3Fts5IndexEntryCksum(
+  i64 iRowid, 
+  int iCol, 
+  int iPos, 
+  int iIdx,
+  const char *pTerm,
+  int nTerm
+);
+
+/*
+** Argument p points to a buffer containing utf-8 text that is n bytes in 
+** size. Return the number of bytes in the nChar character prefix of the
+** buffer, or 0 if there are less than nChar characters in total.
+*/
+int sqlite3Fts5IndexCharlenToBytelen(
+  const char *p, 
+  int nByte, 
+  int nChar
+);
+
+/*
+** Open a new iterator to iterate though all rowids that match the 
+** specified token or token prefix.
+*/
+int sqlite3Fts5IndexQuery(
+  Fts5Index *p,                   /* FTS index to query */
+  const char *pToken, int nToken, /* Token (or prefix) to query for */
+  int flags,                      /* Mask of FTS5INDEX_QUERY_X flags */
+  Fts5Colset *pColset,            /* Match these columns only */
+  Fts5IndexIter **ppIter          /* OUT: New iterator object */
+);
+
+/*
+** The various operations on open token or token prefix iterators opened
+** using sqlite3Fts5IndexQuery().
+*/
+int sqlite3Fts5IterNext(Fts5IndexIter*);
+int sqlite3Fts5IterNextFrom(Fts5IndexIter*, i64 iMatch);
+
+/*
+** Close an iterator opened by sqlite3Fts5IndexQuery().
+*/
+void sqlite3Fts5IterClose(Fts5IndexIter*);
+
+/*
+** Close the reader blob handle, if it is open.
+*/
+void sqlite3Fts5IndexCloseReader(Fts5Index*);
+
+/*
+** This interface is used by the fts5vocab module.
+*/
+const char *sqlite3Fts5IterTerm(Fts5IndexIter*, int*);
+int sqlite3Fts5IterNextScan(Fts5IndexIter*);
+void *sqlite3Fts5StructureRef(Fts5Index*);
+void sqlite3Fts5StructureRelease(void*);
+int sqlite3Fts5StructureTest(Fts5Index*, void*);
+
+/*
+** Used by xInstToken():
+*/
+int sqlite3Fts5IterToken(
+  Fts5IndexIter *pIndexIter, 
+  const char *pToken, int nToken,
+  i64 iRowid,
+  int iCol, 
+  int iOff, 
+  const char **ppOut, int *pnOut
+);
+
+/*
+** Insert or remove data to or from the index. Each time a document is 
+** added to or removed from the index, this function is called one or more
+** times.
+**
+** For an insert, it must be called once for each token in the new document.
+** If the operation is a delete, it must be called (at least) once for each
+** unique token in the document with an iCol value less than zero. The iPos
+** argument is ignored for a delete.
+*/
+int sqlite3Fts5IndexWrite(
+  Fts5Index *p,                   /* Index to write to */
+  int iCol,                       /* Column token appears in (-ve -> delete) */
+  int iPos,                       /* Position of token within column */
+  const char *pToken, int nToken  /* Token to add or remove to or from index */
+);
+
+/*
+** Indicate that subsequent calls to sqlite3Fts5IndexWrite() pertain to
+** document iDocid.
+*/
+int sqlite3Fts5IndexBeginWrite(
+  Fts5Index *p,                   /* Index to write to */
+  int bDelete,                    /* True if current operation is a delete */
+  i64 iDocid                      /* Docid to add or remove data from */
+);
+
+/*
+** Flush any data stored in the in-memory hash tables to the database.
+** Also close any open blob handles.
+*/
+int sqlite3Fts5IndexSync(Fts5Index *p);
+
+/*
+** Discard any data stored in the in-memory hash tables. Do not write it
+** to the database. Additionally, assume that the contents of the %_data
+** table may have changed on disk. So any in-memory caches of %_data 
+** records must be invalidated.
+*/
+int sqlite3Fts5IndexRollback(Fts5Index *p);
+
+/*
+** Get or set the "averages" values.
+*/
+int sqlite3Fts5IndexGetAverages(Fts5Index *p, i64 *pnRow, i64 *anSize);
+int sqlite3Fts5IndexSetAverages(Fts5Index *p, const u8*, int);
+
+/*
+** Functions called by the storage module as part of integrity-check.
+*/
+int sqlite3Fts5IndexIntegrityCheck(Fts5Index*, u64 cksum, int bUseCksum);
+
+/* 
+** Called during virtual module initialization to register UDF 
+** fts5_decode() with SQLite 
+*/
+int sqlite3Fts5IndexInit(sqlite3*);
+
+int sqlite3Fts5IndexSetCookie(Fts5Index*, int);
+
+/*
+** Return the total number of entries read from the %_data table by 
+** this connection since it was created.
+*/
+int sqlite3Fts5IndexReads(Fts5Index *p);
+
+int sqlite3Fts5IndexReinit(Fts5Index *p);
+int sqlite3Fts5IndexOptimize(Fts5Index *p);
+int sqlite3Fts5IndexMerge(Fts5Index *p, int nMerge);
+int sqlite3Fts5IndexReset(Fts5Index *p);
+
+int sqlite3Fts5IndexLoadConfig(Fts5Index *p);
+
+int sqlite3Fts5IndexGetOrigin(Fts5Index *p, i64 *piOrigin);
+int sqlite3Fts5IndexContentlessDelete(Fts5Index *p, i64 iOrigin, i64 iRowid);
+
+void sqlite3Fts5IndexIterClearTokendata(Fts5IndexIter*);
+
+/* Used to populate hash tables for xInstToken in detail=none/column mode. */
+int sqlite3Fts5IndexIterWriteTokendata(
+    Fts5IndexIter*, const char*, int, i64 iRowid, int iCol, int iOff
+);
+
+/*
+** End of interface to code in fts5_index.c.
+**************************************************************************/
+
+/**************************************************************************
+** Interface to code in fts5_varint.c. 
+*/
+int sqlite3Fts5GetVarint32(const unsigned char *p, u32 *v);
+int sqlite3Fts5GetVarintLen(u32 iVal);
+u8 sqlite3Fts5GetVarint(const unsigned char*, u64*);
+int sqlite3Fts5PutVarint(unsigned char *p, u64 v);
+
+#define fts5GetVarint32(a,b) sqlite3Fts5GetVarint32(a,(u32*)&(b))
+#define fts5GetVarint    sqlite3Fts5GetVarint
+
+#define fts5FastGetVarint32(a, iOff, nVal) {      \
+  nVal = (a)[iOff++];                             \
+  if( nVal & 0x80 ){                              \
+    iOff--;                                       \
+    iOff += fts5GetVarint32(&(a)[iOff], nVal);    \
+  }                                               \
+}
+
+
+/*
+** End of interface to code in fts5_varint.c.
+**************************************************************************/
+
+
+/**************************************************************************
+** Interface to code in fts5_main.c. 
+*/
+
+/*
+** Virtual-table object.
+*/
+typedef struct Fts5Table Fts5Table;
+struct Fts5Table {
+  sqlite3_vtab base;              /* Base class used by SQLite core */
+  Fts5Config *pConfig;            /* Virtual table configuration */
+  Fts5Index *pIndex;              /* Full-text index */
+};
+
+int sqlite3Fts5LoadTokenizer(Fts5Config *pConfig);
+
+Fts5Table *sqlite3Fts5TableFromCsrid(Fts5Global*, i64);
+
+int sqlite3Fts5FlushToDisk(Fts5Table*);
+
+void sqlite3Fts5ClearLocale(Fts5Config *pConfig);
+void sqlite3Fts5SetLocale(Fts5Config *pConfig, const char *pLoc, int nLoc);
+
+int sqlite3Fts5IsLocaleValue(Fts5Config *pConfig, sqlite3_value *pVal);
+int sqlite3Fts5DecodeLocaleValue(sqlite3_value *pVal, 
+    const char **ppText, int *pnText, const char **ppLoc, int *pnLoc
+);
+
+/*
+** End of interface to code in fts5.c.
+**************************************************************************/
+
+/**************************************************************************
+** Interface to code in fts5_hash.c. 
+*/
+typedef struct Fts5Hash Fts5Hash;
+
+/*
+** Create a hash table, free a hash table.
+*/
+int sqlite3Fts5HashNew(Fts5Config*, Fts5Hash**, int *pnSize);
+void sqlite3Fts5HashFree(Fts5Hash*);
+
+int sqlite3Fts5HashWrite(
+  Fts5Hash*,
+  i64 iRowid,                     /* Rowid for this entry */
+  int iCol,                       /* Column token appears in (-ve -> delete) */
+  int iPos,                       /* Position of token within column */
+  char bByte,
+  const char *pToken, int nToken  /* Token to add or remove to or from index */
+);
+
+/*
+** Empty (but do not delete) a hash table.
+*/
+void sqlite3Fts5HashClear(Fts5Hash*);
+
+/*
+** Return true if the hash is empty, false otherwise.
+*/
+int sqlite3Fts5HashIsEmpty(Fts5Hash*);
+
+int sqlite3Fts5HashQuery(
+  Fts5Hash*,                      /* Hash table to query */
+  int nPre,
+  const char *pTerm, int nTerm,   /* Query term */
+  void **ppObj,                   /* OUT: Pointer to doclist for pTerm */
+  int *pnDoclist                  /* OUT: Size of doclist in bytes */
+);
+
+int sqlite3Fts5HashScanInit(
+  Fts5Hash*,                      /* Hash table to query */
+  const char *pTerm, int nTerm    /* Query prefix */
+);
+void sqlite3Fts5HashScanNext(Fts5Hash*);
+int sqlite3Fts5HashScanEof(Fts5Hash*);
+void sqlite3Fts5HashScanEntry(Fts5Hash *,
+  const char **pzTerm,            /* OUT: term (nul-terminated) */
+  int *pnTerm,                    /* OUT: Size of term in bytes */
+  const u8 **ppDoclist,           /* OUT: pointer to doclist */
+  int *pnDoclist                  /* OUT: size of doclist in bytes */
+);
+
+
+
+/*
+** End of interface to code in fts5_hash.c.
+**************************************************************************/
+
+/**************************************************************************
+** Interface to code in fts5_storage.c. fts5_storage.c contains contains 
+** code to access the data stored in the %_content and %_docsize tables.
+*/
+
+#define FTS5_STMT_SCAN_ASC  0     /* SELECT rowid, * FROM ... ORDER BY 1 ASC */
+#define FTS5_STMT_SCAN_DESC 1     /* SELECT rowid, * FROM ... ORDER BY 1 DESC */
+#define FTS5_STMT_LOOKUP    2     /* SELECT rowid, * FROM ... WHERE rowid=? */
+
+typedef struct Fts5Storage Fts5Storage;
+
+int sqlite3Fts5StorageOpen(Fts5Config*, Fts5Index*, int, Fts5Storage**, char**);
+int sqlite3Fts5StorageClose(Fts5Storage *p);
+int sqlite3Fts5StorageRename(Fts5Storage*, const char *zName);
+
+int sqlite3Fts5DropAll(Fts5Config*);
+int sqlite3Fts5CreateTable(Fts5Config*, const char*, const char*, int, char **);
+
+int sqlite3Fts5StorageDelete(Fts5Storage *p, i64, sqlite3_value**, int);
+int sqlite3Fts5StorageContentInsert(Fts5Storage *p, int, sqlite3_value**, i64*);
+int sqlite3Fts5StorageIndexInsert(Fts5Storage *p, sqlite3_value**, i64);
+
+int sqlite3Fts5StorageIntegrity(Fts5Storage *p, int iArg);
+
+int sqlite3Fts5StorageStmt(Fts5Storage *p, int eStmt, sqlite3_stmt**, char**);
+void sqlite3Fts5StorageStmtRelease(Fts5Storage *p, int eStmt, sqlite3_stmt*);
+
+int sqlite3Fts5StorageDocsize(Fts5Storage *p, i64 iRowid, int *aCol);
+int sqlite3Fts5StorageSize(Fts5Storage *p, int iCol, i64 *pnAvg);
+int sqlite3Fts5StorageRowCount(Fts5Storage *p, i64 *pnRow);
+
+int sqlite3Fts5StorageSync(Fts5Storage *p);
+int sqlite3Fts5StorageRollback(Fts5Storage *p);
+
+int sqlite3Fts5StorageConfigValue(
+    Fts5Storage *p, const char*, sqlite3_value*, int
+);
+
+int sqlite3Fts5StorageDeleteAll(Fts5Storage *p);
+int sqlite3Fts5StorageRebuild(Fts5Storage *p);
+int sqlite3Fts5StorageOptimize(Fts5Storage *p);
+int sqlite3Fts5StorageMerge(Fts5Storage *p, int nMerge);
+int sqlite3Fts5StorageReset(Fts5Storage *p);
+
+void sqlite3Fts5StorageReleaseDeleteRow(Fts5Storage*);
+int sqlite3Fts5StorageFindDeleteRow(Fts5Storage *p, i64 iDel);
+
+/*
+** End of interface to code in fts5_storage.c.
+**************************************************************************/
+
+
+/**************************************************************************
+** Interface to code in fts5_expr.c. 
+*/
+typedef struct Fts5Expr Fts5Expr;
+typedef struct Fts5ExprNode Fts5ExprNode;
+typedef struct Fts5Parse Fts5Parse;
+typedef struct Fts5Token Fts5Token;
+typedef struct Fts5ExprPhrase Fts5ExprPhrase;
+typedef struct Fts5ExprNearset Fts5ExprNearset;
+
+struct Fts5Token {
+  const char *p;                  /* Token text (not NULL terminated) */
+  int n;                          /* Size of buffer p in bytes */
+};
+
+/* Parse a MATCH expression. */
+int sqlite3Fts5ExprNew(
+  Fts5Config *pConfig, 
+  int bPhraseToAnd,
+  int iCol,                       /* Column on LHS of MATCH operator */
+  const char *zExpr,
+  Fts5Expr **ppNew, 
+  char **pzErr
+);
+int sqlite3Fts5ExprPattern(
+  Fts5Config *pConfig, 
+  int bGlob, 
+  int iCol, 
+  const char *zText, 
+  Fts5Expr **pp
+);
+
+/*
+** for(rc = sqlite3Fts5ExprFirst(pExpr, pIdx, bDesc);
+**     rc==SQLITE_OK && 0==sqlite3Fts5ExprEof(pExpr);
+**     rc = sqlite3Fts5ExprNext(pExpr)
+** ){
+**   // The document with rowid iRowid matches the expression!
+**   i64 iRowid = sqlite3Fts5ExprRowid(pExpr);
+** }
+*/
+int sqlite3Fts5ExprFirst(Fts5Expr*, Fts5Index *pIdx, i64 iMin, int bDesc);
+int sqlite3Fts5ExprNext(Fts5Expr*, i64 iMax);
+int sqlite3Fts5ExprEof(Fts5Expr*);
+i64 sqlite3Fts5ExprRowid(Fts5Expr*);
+
+void sqlite3Fts5ExprFree(Fts5Expr*);
+int sqlite3Fts5ExprAnd(Fts5Expr **pp1, Fts5Expr *p2);
+
+/* Called during startup to register a UDF with SQLite */
+int sqlite3Fts5ExprInit(Fts5Global*, sqlite3*);
+
+int sqlite3Fts5ExprPhraseCount(Fts5Expr*);
+int sqlite3Fts5ExprPhraseSize(Fts5Expr*, int iPhrase);
+int sqlite3Fts5ExprPoslist(Fts5Expr*, int, const u8 **);
+
+typedef struct Fts5PoslistPopulator Fts5PoslistPopulator;
+Fts5PoslistPopulator *sqlite3Fts5ExprClearPoslists(Fts5Expr*, int);
+int sqlite3Fts5ExprPopulatePoslists(
+    Fts5Config*, Fts5Expr*, Fts5PoslistPopulator*, int, const char*, int
+);
+void sqlite3Fts5ExprCheckPoslists(Fts5Expr*, i64);
+
+int sqlite3Fts5ExprClonePhrase(Fts5Expr*, int, Fts5Expr**);
+
+int sqlite3Fts5ExprPhraseCollist(Fts5Expr *, int, const u8 **, int *);
+
+int sqlite3Fts5ExprQueryToken(Fts5Expr*, int, int, const char**, int*);
+int sqlite3Fts5ExprInstToken(Fts5Expr*, i64, int, int, int, int, const char**, int*);
+void sqlite3Fts5ExprClearTokens(Fts5Expr*);
+
+/*******************************************
+** The fts5_expr.c API above this point is used by the other hand-written
+** C code in this module. The interfaces below this point are called by
+** the parser code in fts5parse.y.  */
+
+void sqlite3Fts5ParseError(Fts5Parse *pParse, const char *zFmt, ...);
+
+Fts5ExprNode *sqlite3Fts5ParseNode(
+  Fts5Parse *pParse,
+  int eType,
+  Fts5ExprNode *pLeft,
+  Fts5ExprNode *pRight,
+  Fts5ExprNearset *pNear
+);
+
+Fts5ExprNode *sqlite3Fts5ParseImplicitAnd(
+  Fts5Parse *pParse,
+  Fts5ExprNode *pLeft,
+  Fts5ExprNode *pRight
+);
+
+Fts5ExprPhrase *sqlite3Fts5ParseTerm(
+  Fts5Parse *pParse, 
+  Fts5ExprPhrase *pPhrase, 
+  Fts5Token *pToken,
+  int bPrefix
+);
+
+void sqlite3Fts5ParseSetCaret(Fts5ExprPhrase*);
+
+Fts5ExprNearset *sqlite3Fts5ParseNearset(
+  Fts5Parse*, 
+  Fts5ExprNearset*,
+  Fts5ExprPhrase* 
+);
+
+Fts5Colset *sqlite3Fts5ParseColset(
+  Fts5Parse*, 
+  Fts5Colset*, 
+  Fts5Token *
+);
+
+void sqlite3Fts5ParsePhraseFree(Fts5ExprPhrase*);
+void sqlite3Fts5ParseNearsetFree(Fts5ExprNearset*);
+void sqlite3Fts5ParseNodeFree(Fts5ExprNode*);
+
+void sqlite3Fts5ParseSetDistance(Fts5Parse*, Fts5ExprNearset*, Fts5Token*);
+void sqlite3Fts5ParseSetColset(Fts5Parse*, Fts5ExprNode*, Fts5Colset*);
+Fts5Colset *sqlite3Fts5ParseColsetInvert(Fts5Parse*, Fts5Colset*);
+void sqlite3Fts5ParseFinished(Fts5Parse *pParse, Fts5ExprNode *p);
+void sqlite3Fts5ParseNear(Fts5Parse *pParse, Fts5Token*);
+
+/*
+** End of interface to code in fts5_expr.c.
+**************************************************************************/
+
+
+
+/**************************************************************************
+** Interface to code in fts5_aux.c. 
+*/
+
+int sqlite3Fts5AuxInit(fts5_api*);
+/*
+** End of interface to code in fts5_aux.c.
+**************************************************************************/
+
+/**************************************************************************
+** Interface to code in fts5_tokenizer.c. 
+*/
+
+int sqlite3Fts5TokenizerInit(fts5_api*);
+int sqlite3Fts5TokenizerPattern(
+    int (*xCreate)(void*, const char**, int, Fts5Tokenizer**),
+    Fts5Tokenizer *pTok
+);
+int sqlite3Fts5TokenizerPreload(Fts5TokenizerConfig*);
+/*
+** End of interface to code in fts5_tokenizer.c.
+**************************************************************************/
+
+/**************************************************************************
+** Interface to code in fts5_vocab.c. 
+*/
+
+int sqlite3Fts5VocabInit(Fts5Global*, sqlite3*);
+
+/*
+** End of interface to code in fts5_vocab.c.
+**************************************************************************/
+
+
+/**************************************************************************
+** Interface to automatically generated code in fts5_unicode2.c. 
+*/
+int sqlite3Fts5UnicodeIsdiacritic(int c);
+int sqlite3Fts5UnicodeFold(int c, int bRemoveDiacritic);
+
+int sqlite3Fts5UnicodeCatParse(const char*, u8*);
+int sqlite3Fts5UnicodeCategory(u32 iCode);
+void sqlite3Fts5UnicodeAscii(u8*, u8*);
+/*
+** End of interface to code in fts5_unicode2.c.
+**************************************************************************/
+
+#endif
diff --git a/ext/fts5/fts5_aux.c b/ext/fts5/fts5_aux.c
new file mode 100644
index 0000000000000000000000000000000000000000..ad578156da6355670abef96efd9e8dcdc2be7dcf
--- /dev/null
+++ b/ext/fts5/fts5_aux.c
@@ -0,0 +1,821 @@
+/*
+** 2014 May 31
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+*/
+
+
+#include "fts5Int.h"
+#include <math.h>                 /* amalgamator: keep */
+
+/*
+** Object used to iterate through all "coalesced phrase instances" in 
+** a single column of the current row. If the phrase instances in the
+** column being considered do not overlap, this object simply iterates
+** through them. Or, if they do overlap (share one or more tokens in
+** common), each set of overlapping instances is treated as a single
+** match. See documentation for the highlight() auxiliary function for
+** details.
+**
+** Usage is:
+**
+**   for(rc = fts5CInstIterNext(pApi, pFts, iCol, &iter);
+**      (rc==SQLITE_OK && 0==fts5CInstIterEof(&iter);
+**      rc = fts5CInstIterNext(&iter)
+**   ){
+**     printf("instance starts at %d, ends at %d\n", iter.iStart, iter.iEnd);
+**   }
+**
+*/
+typedef struct CInstIter CInstIter;
+struct CInstIter {
+  const Fts5ExtensionApi *pApi;   /* API offered by current FTS version */
+  Fts5Context *pFts;              /* First arg to pass to pApi functions */
+  int iCol;                       /* Column to search */
+  int iInst;                      /* Next phrase instance index */
+  int nInst;                      /* Total number of phrase instances */
+
+  /* Output variables */
+  int iStart;                     /* First token in coalesced phrase instance */
+  int iEnd;                       /* Last token in coalesced phrase instance */
+};
+
+/*
+** Advance the iterator to the next coalesced phrase instance. Return
+** an SQLite error code if an error occurs, or SQLITE_OK otherwise.
+*/
+static int fts5CInstIterNext(CInstIter *pIter){
+  int rc = SQLITE_OK;
+  pIter->iStart = -1;
+  pIter->iEnd = -1;
+
+  while( rc==SQLITE_OK && pIter->iInst<pIter->nInst ){
+    int ip; int ic; int io;
+    rc = pIter->pApi->xInst(pIter->pFts, pIter->iInst, &ip, &ic, &io);
+    if( rc==SQLITE_OK ){
+      if( ic==pIter->iCol ){
+        int iEnd = io - 1 + pIter->pApi->xPhraseSize(pIter->pFts, ip);
+        if( pIter->iStart<0 ){
+          pIter->iStart = io;
+          pIter->iEnd = iEnd;
+        }else if( io<=pIter->iEnd ){
+          if( iEnd>pIter->iEnd ) pIter->iEnd = iEnd;
+        }else{
+          break;
+        }
+      }
+      pIter->iInst++;
+    }
+  }
+
+  return rc;
+}
+
+/*
+** Initialize the iterator object indicated by the final parameter to 
+** iterate through coalesced phrase instances in column iCol.
+*/
+static int fts5CInstIterInit(
+  const Fts5ExtensionApi *pApi,
+  Fts5Context *pFts,
+  int iCol,
+  CInstIter *pIter
+){
+  int rc;
+
+  memset(pIter, 0, sizeof(CInstIter));
+  pIter->pApi = pApi;
+  pIter->pFts = pFts;
+  pIter->iCol = iCol;
+  rc = pApi->xInstCount(pFts, &pIter->nInst);
+
+  if( rc==SQLITE_OK ){
+    rc = fts5CInstIterNext(pIter);
+  }
+
+  return rc;
+}
+
+
+
+/*************************************************************************
+** Start of highlight() implementation.
+*/
+typedef struct HighlightContext HighlightContext;
+struct HighlightContext {
+  /* Constant parameters to fts5HighlightCb() */
+  int iRangeStart;                /* First token to include */
+  int iRangeEnd;                  /* If non-zero, last token to include */
+  const char *zOpen;              /* Opening highlight */
+  const char *zClose;             /* Closing highlight */
+  const char *zIn;                /* Input text */
+  int nIn;                        /* Size of input text in bytes */
+
+  /* Variables modified by fts5HighlightCb() */
+  CInstIter iter;                 /* Coalesced Instance Iterator */
+  int iPos;                       /* Current token offset in zIn[] */
+  int iOff;                       /* Have copied up to this offset in zIn[] */
+  int bOpen;                      /* True if highlight is open */
+  char *zOut;                     /* Output value */
+};
+
+/*
+** Append text to the HighlightContext output string - p->zOut. Argument
+** z points to a buffer containing n bytes of text to append. If n is 
+** negative, everything up until the first '\0' is appended to the output.
+**
+** If *pRc is set to any value other than SQLITE_OK when this function is 
+** called, it is a no-op. If an error (i.e. an OOM condition) is encountered, 
+** *pRc is set to an error code before returning. 
+*/
+static void fts5HighlightAppend(
+  int *pRc, 
+  HighlightContext *p, 
+  const char *z, int n
+){
+  if( *pRc==SQLITE_OK && z ){
+    if( n<0 ) n = (int)strlen(z);
+    p->zOut = sqlite3_mprintf("%z%.*s", p->zOut, n, z);
+    if( p->zOut==0 ) *pRc = SQLITE_NOMEM;
+  }
+}
+
+/*
+** Tokenizer callback used by implementation of highlight() function.
+*/
+static int fts5HighlightCb(
+  void *pContext,                 /* Pointer to HighlightContext object */
+  int tflags,                     /* Mask of FTS5_TOKEN_* flags */
+  const char *pToken,             /* Buffer containing token */
+  int nToken,                     /* Size of token in bytes */
+  int iStartOff,                  /* Start byte offset of token */
+  int iEndOff                     /* End byte offset of token */
+){
+  HighlightContext *p = (HighlightContext*)pContext;
+  int rc = SQLITE_OK;
+  int iPos;
+
+  UNUSED_PARAM2(pToken, nToken);
+
+  if( tflags & FTS5_TOKEN_COLOCATED ) return SQLITE_OK;
+  iPos = p->iPos++;
+
+  if( p->iRangeEnd>=0 ){
+    if( iPos<p->iRangeStart || iPos>p->iRangeEnd ) return SQLITE_OK;
+    if( p->iRangeStart && iPos==p->iRangeStart ) p->iOff = iStartOff;
+  }
+
+  /* If the parenthesis is open, and this token is not part of the current
+  ** phrase, and the starting byte offset of this token is past the point
+  ** that has currently been copied into the output buffer, close the
+  ** parenthesis. */
+  if( p->bOpen 
+   && (iPos<=p->iter.iStart || p->iter.iStart<0)
+   && iStartOff>p->iOff 
+  ){
+    fts5HighlightAppend(&rc, p, p->zClose, -1);
+    p->bOpen = 0;
+  }
+
+  /* If this is the start of a new phrase, and the highlight is not open:
+  **
+  **   * copy text from the input up to the start of the phrase, and
+  **   * open the highlight.
+  */
+  if( iPos==p->iter.iStart && p->bOpen==0 ){
+    fts5HighlightAppend(&rc, p, &p->zIn[p->iOff], iStartOff - p->iOff);
+    fts5HighlightAppend(&rc, p, p->zOpen, -1);
+    p->iOff = iStartOff;
+    p->bOpen = 1;
+  }
+
+  if( iPos==p->iter.iEnd ){
+    if( p->bOpen==0 ){
+      assert( p->iRangeEnd>=0 );
+      fts5HighlightAppend(&rc, p, p->zOpen, -1);
+      p->bOpen = 1;
+    }
+    fts5HighlightAppend(&rc, p, &p->zIn[p->iOff], iEndOff - p->iOff);
+    p->iOff = iEndOff;
+
+    if( rc==SQLITE_OK ){
+      rc = fts5CInstIterNext(&p->iter);
+    }
+  }
+
+  if( iPos==p->iRangeEnd ){
+    if( p->bOpen ){
+      if( p->iter.iStart>=0 && iPos>=p->iter.iStart ){
+        fts5HighlightAppend(&rc, p, &p->zIn[p->iOff], iEndOff - p->iOff);
+        p->iOff = iEndOff;
+      }
+      fts5HighlightAppend(&rc, p, p->zClose, -1);
+      p->bOpen = 0;
+    }
+    fts5HighlightAppend(&rc, p, &p->zIn[p->iOff], iEndOff - p->iOff);
+    p->iOff = iEndOff;
+  }
+
+  return rc;
+}
+
+
+/*
+** Implementation of highlight() function.
+*/
+static void fts5HighlightFunction(
+  const Fts5ExtensionApi *pApi,   /* API offered by current FTS version */
+  Fts5Context *pFts,              /* First arg to pass to pApi functions */
+  sqlite3_context *pCtx,          /* Context for returning result/error */
+  int nVal,                       /* Number of values in apVal[] array */
+  sqlite3_value **apVal           /* Array of trailing arguments */
+){
+  HighlightContext ctx;
+  int rc;
+  int iCol;
+
+  if( nVal!=3 ){
+    const char *zErr = "wrong number of arguments to function highlight()";
+    sqlite3_result_error(pCtx, zErr, -1);
+    return;
+  }
+
+  iCol = sqlite3_value_int(apVal[0]);
+  memset(&ctx, 0, sizeof(HighlightContext));
+  ctx.zOpen = (const char*)sqlite3_value_text(apVal[1]);
+  ctx.zClose = (const char*)sqlite3_value_text(apVal[2]);
+  ctx.iRangeEnd = -1;
+  rc = pApi->xColumnText(pFts, iCol, &ctx.zIn, &ctx.nIn);
+  if( rc==SQLITE_RANGE ){
+    sqlite3_result_text(pCtx, "", -1, SQLITE_STATIC);
+    rc = SQLITE_OK;
+  }else if( ctx.zIn ){
+    const char *pLoc = 0;         /* Locale of column iCol */
+    int nLoc = 0;                 /* Size of pLoc in bytes */
+    if( rc==SQLITE_OK ){
+      rc = fts5CInstIterInit(pApi, pFts, iCol, &ctx.iter);
+    }
+
+    if( rc==SQLITE_OK ){
+      rc = pApi->xColumnLocale(pFts, iCol, &pLoc, &nLoc);
+    }
+    if( rc==SQLITE_OK ){
+      rc = pApi->xTokenize_v2(
+          pFts, ctx.zIn, ctx.nIn, pLoc, nLoc, (void*)&ctx, fts5HighlightCb
+      );
+    }
+    if( ctx.bOpen ){
+      fts5HighlightAppend(&rc, &ctx, ctx.zClose, -1);
+    }
+    fts5HighlightAppend(&rc, &ctx, &ctx.zIn[ctx.iOff], ctx.nIn - ctx.iOff);
+
+    if( rc==SQLITE_OK ){
+      sqlite3_result_text(pCtx, (const char*)ctx.zOut, -1, SQLITE_TRANSIENT);
+    }
+    sqlite3_free(ctx.zOut);
+  }
+  if( rc!=SQLITE_OK ){
+    sqlite3_result_error_code(pCtx, rc);
+  }
+}
+/*
+** End of highlight() implementation.
+**************************************************************************/
+
+/*
+** Context object passed to the fts5SentenceFinderCb() function.
+*/
+typedef struct Fts5SFinder Fts5SFinder;
+struct Fts5SFinder {
+  int iPos;                       /* Current token position */
+  int nFirstAlloc;                /* Allocated size of aFirst[] */
+  int nFirst;                     /* Number of entries in aFirst[] */
+  int *aFirst;                    /* Array of first token in each sentence */
+  const char *zDoc;               /* Document being tokenized */
+};
+
+/*
+** Add an entry to the Fts5SFinder.aFirst[] array. Grow the array if
+** necessary. Return SQLITE_OK if successful, or SQLITE_NOMEM if an
+** error occurs.
+*/
+static int fts5SentenceFinderAdd(Fts5SFinder *p, int iAdd){
+  if( p->nFirstAlloc==p->nFirst ){
+    int nNew = p->nFirstAlloc ? p->nFirstAlloc*2 : 64;
+    int *aNew;
+
+    aNew = (int*)sqlite3_realloc64(p->aFirst, nNew*sizeof(int));
+    if( aNew==0 ) return SQLITE_NOMEM;
+    p->aFirst = aNew;
+    p->nFirstAlloc = nNew;
+  }
+  p->aFirst[p->nFirst++] = iAdd;
+  return SQLITE_OK;
+}
+
+/*
+** This function is an xTokenize() callback used by the auxiliary snippet()
+** function. Its job is to identify tokens that are the first in a sentence.
+** For each such token, an entry is added to the SFinder.aFirst[] array.
+*/
+static int fts5SentenceFinderCb(
+  void *pContext,                 /* Pointer to HighlightContext object */
+  int tflags,                     /* Mask of FTS5_TOKEN_* flags */
+  const char *pToken,             /* Buffer containing token */
+  int nToken,                     /* Size of token in bytes */
+  int iStartOff,                  /* Start offset of token */
+  int iEndOff                     /* End offset of token */
+){
+  int rc = SQLITE_OK;
+
+  UNUSED_PARAM2(pToken, nToken);
+  UNUSED_PARAM(iEndOff);
+
+  if( (tflags & FTS5_TOKEN_COLOCATED)==0 ){
+    Fts5SFinder *p = (Fts5SFinder*)pContext;
+    if( p->iPos>0 ){
+      int i;
+      char c = 0;
+      for(i=iStartOff-1; i>=0; i--){
+        c = p->zDoc[i];
+        if( c!=' ' && c!='\t' && c!='\n' && c!='\r' ) break;
+      }
+      if( i!=iStartOff-1 && (c=='.' || c==':') ){
+        rc = fts5SentenceFinderAdd(p, p->iPos);
+      }
+    }else{
+      rc = fts5SentenceFinderAdd(p, 0);
+    }
+    p->iPos++;
+  }
+  return rc;
+}
+
+static int fts5SnippetScore(
+  const Fts5ExtensionApi *pApi,   /* API offered by current FTS version */
+  Fts5Context *pFts,              /* First arg to pass to pApi functions */
+  int nDocsize,                   /* Size of column in tokens */
+  unsigned char *aSeen,           /* Array with one element per query phrase */
+  int iCol,                       /* Column to score */
+  int iPos,                       /* Starting offset to score */
+  int nToken,                     /* Max tokens per snippet */
+  int *pnScore,                   /* OUT: Score */
+  int *piPos                      /* OUT: Adjusted offset */
+){
+  int rc;
+  int i;
+  int ip = 0;
+  int ic = 0;
+  int iOff = 0;
+  int iFirst = -1;
+  int nInst;
+  int nScore = 0;
+  int iLast = 0;
+  sqlite3_int64 iEnd = (sqlite3_int64)iPos + nToken;
+
+  rc = pApi->xInstCount(pFts, &nInst);
+  for(i=0; i<nInst && rc==SQLITE_OK; i++){
+    rc = pApi->xInst(pFts, i, &ip, &ic, &iOff);
+    if( rc==SQLITE_OK && ic==iCol && iOff>=iPos && iOff<iEnd ){
+      nScore += (aSeen[ip] ? 1 : 1000);
+      aSeen[ip] = 1;
+      if( iFirst<0 ) iFirst = iOff;
+      iLast = iOff + pApi->xPhraseSize(pFts, ip);
+    }
+  }
+
+  *pnScore = nScore;
+  if( piPos ){
+    sqlite3_int64 iAdj = iFirst - (nToken - (iLast-iFirst)) / 2;
+    if( (iAdj+nToken)>nDocsize ) iAdj = nDocsize - nToken;
+    if( iAdj<0 ) iAdj = 0;
+    *piPos = (int)iAdj;
+  }
+
+  return rc;
+}
+
+/*
+** Return the value in pVal interpreted as utf-8 text. Except, if pVal 
+** contains a NULL value, return a pointer to a static string zero
+** bytes in length instead of a NULL pointer.
+*/
+static const char *fts5ValueToText(sqlite3_value *pVal){
+  const char *zRet = (const char*)sqlite3_value_text(pVal);
+  return zRet ? zRet : "";
+}
+
+/*
+** Implementation of snippet() function.
+*/
+static void fts5SnippetFunction(
+  const Fts5ExtensionApi *pApi,   /* API offered by current FTS version */
+  Fts5Context *pFts,              /* First arg to pass to pApi functions */
+  sqlite3_context *pCtx,          /* Context for returning result/error */
+  int nVal,                       /* Number of values in apVal[] array */
+  sqlite3_value **apVal           /* Array of trailing arguments */
+){
+  HighlightContext ctx;
+  int rc = SQLITE_OK;             /* Return code */
+  int iCol;                       /* 1st argument to snippet() */
+  const char *zEllips;            /* 4th argument to snippet() */
+  int nToken;                     /* 5th argument to snippet() */
+  int nInst = 0;                  /* Number of instance matches this row */
+  int i;                          /* Used to iterate through instances */
+  int nPhrase;                    /* Number of phrases in query */
+  unsigned char *aSeen;           /* Array of "seen instance" flags */
+  int iBestCol;                   /* Column containing best snippet */
+  int iBestStart = 0;             /* First token of best snippet */
+  int nBestScore = 0;             /* Score of best snippet */
+  int nColSize = 0;               /* Total size of iBestCol in tokens */
+  Fts5SFinder sFinder;            /* Used to find the beginnings of sentences */
+  int nCol;
+
+  if( nVal!=5 ){
+    const char *zErr = "wrong number of arguments to function snippet()";
+    sqlite3_result_error(pCtx, zErr, -1);
+    return;
+  }
+
+  nCol = pApi->xColumnCount(pFts);
+  memset(&ctx, 0, sizeof(HighlightContext));
+  iCol = sqlite3_value_int(apVal[0]);
+  ctx.zOpen = fts5ValueToText(apVal[1]);
+  ctx.zClose = fts5ValueToText(apVal[2]);
+  ctx.iRangeEnd = -1;
+  zEllips = fts5ValueToText(apVal[3]);
+  nToken = sqlite3_value_int(apVal[4]);
+
+  iBestCol = (iCol>=0 ? iCol : 0);
+  nPhrase = pApi->xPhraseCount(pFts);
+  aSeen = sqlite3_malloc(nPhrase);
+  if( aSeen==0 ){
+    rc = SQLITE_NOMEM;
+  }
+  if( rc==SQLITE_OK ){
+    rc = pApi->xInstCount(pFts, &nInst);
+  }
+
+  memset(&sFinder, 0, sizeof(Fts5SFinder));
+  for(i=0; i<nCol; i++){
+    if( iCol<0 || iCol==i ){
+      const char *pLoc = 0;       /* Locale of column iCol */
+      int nLoc = 0;               /* Size of pLoc in bytes */
+      int nDoc;
+      int nDocsize;
+      int ii;
+      sFinder.iPos = 0;
+      sFinder.nFirst = 0;
+      rc = pApi->xColumnText(pFts, i, &sFinder.zDoc, &nDoc);
+      if( rc!=SQLITE_OK ) break;
+      rc = pApi->xColumnLocale(pFts, i, &pLoc, &nLoc);
+      if( rc!=SQLITE_OK ) break;
+      rc = pApi->xTokenize_v2(pFts, 
+          sFinder.zDoc, nDoc, pLoc, nLoc, (void*)&sFinder, fts5SentenceFinderCb
+      );
+      if( rc!=SQLITE_OK ) break;
+      rc = pApi->xColumnSize(pFts, i, &nDocsize);
+      if( rc!=SQLITE_OK ) break;
+
+      for(ii=0; rc==SQLITE_OK && ii<nInst; ii++){
+        int ip, ic, io;
+        int iAdj;
+        int nScore;
+        int jj;
+
+        rc = pApi->xInst(pFts, ii, &ip, &ic, &io);
+        if( ic!=i ) continue;
+        if( io>nDocsize ) rc = FTS5_CORRUPT;
+        if( rc!=SQLITE_OK ) continue;
+        memset(aSeen, 0, nPhrase);
+        rc = fts5SnippetScore(pApi, pFts, nDocsize, aSeen, i,
+            io, nToken, &nScore, &iAdj
+        );
+        if( rc==SQLITE_OK && nScore>nBestScore ){
+          nBestScore = nScore;
+          iBestCol = i;
+          iBestStart = iAdj;
+          nColSize = nDocsize;
+        }
+
+        if( rc==SQLITE_OK && sFinder.nFirst && nDocsize>nToken ){
+          for(jj=0; jj<(sFinder.nFirst-1); jj++){
+            if( sFinder.aFirst[jj+1]>io ) break;
+          }
+
+          if( sFinder.aFirst[jj]<io ){
+            memset(aSeen, 0, nPhrase);
+            rc = fts5SnippetScore(pApi, pFts, nDocsize, aSeen, i, 
+              sFinder.aFirst[jj], nToken, &nScore, 0
+            );
+
+            nScore += (sFinder.aFirst[jj]==0 ? 120 : 100);
+            if( rc==SQLITE_OK && nScore>nBestScore ){
+              nBestScore = nScore;
+              iBestCol = i;
+              iBestStart = sFinder.aFirst[jj];
+              nColSize = nDocsize;
+            }
+          }
+        }
+      }
+    }
+  }
+
+  if( rc==SQLITE_OK ){
+    rc = pApi->xColumnText(pFts, iBestCol, &ctx.zIn, &ctx.nIn);
+  }
+  if( rc==SQLITE_OK && nColSize==0 ){
+    rc = pApi->xColumnSize(pFts, iBestCol, &nColSize);
+  }
+  if( ctx.zIn ){
+    const char *pLoc = 0;         /* Locale of column iBestCol */
+    int nLoc = 0;                 /* Bytes in pLoc */
+
+    if( rc==SQLITE_OK ){
+      rc = fts5CInstIterInit(pApi, pFts, iBestCol, &ctx.iter);
+    }
+
+    ctx.iRangeStart = iBestStart;
+    ctx.iRangeEnd = iBestStart + nToken - 1;
+
+    if( iBestStart>0 ){
+      fts5HighlightAppend(&rc, &ctx, zEllips, -1);
+    }
+
+    /* Advance iterator ctx.iter so that it points to the first coalesced
+    ** phrase instance at or following position iBestStart. */
+    while( ctx.iter.iStart>=0 && ctx.iter.iStart<iBestStart && rc==SQLITE_OK ){
+      rc = fts5CInstIterNext(&ctx.iter);
+    }
+
+    if( rc==SQLITE_OK ){
+      rc = pApi->xColumnLocale(pFts, iBestCol, &pLoc, &nLoc);
+    }
+    if( rc==SQLITE_OK ){
+      rc = pApi->xTokenize_v2(
+          pFts, ctx.zIn, ctx.nIn, pLoc, nLoc, (void*)&ctx,fts5HighlightCb
+      );
+    }
+    if( ctx.bOpen ){
+      fts5HighlightAppend(&rc, &ctx, ctx.zClose, -1);
+    }
+    if( ctx.iRangeEnd>=(nColSize-1) ){
+      fts5HighlightAppend(&rc, &ctx, &ctx.zIn[ctx.iOff], ctx.nIn - ctx.iOff);
+    }else{
+      fts5HighlightAppend(&rc, &ctx, zEllips, -1);
+    }
+  }
+  if( rc==SQLITE_OK ){
+    sqlite3_result_text(pCtx, (const char*)ctx.zOut, -1, SQLITE_TRANSIENT);
+  }else{
+    sqlite3_result_error_code(pCtx, rc);
+  }
+  sqlite3_free(ctx.zOut);
+  sqlite3_free(aSeen);
+  sqlite3_free(sFinder.aFirst);
+}
+
+/************************************************************************/
+
+/*
+** The first time the bm25() function is called for a query, an instance
+** of the following structure is allocated and populated.
+*/
+typedef struct Fts5Bm25Data Fts5Bm25Data;
+struct Fts5Bm25Data {
+  int nPhrase;                    /* Number of phrases in query */
+  double avgdl;                   /* Average number of tokens in each row */
+  double *aIDF;                   /* IDF for each phrase */
+  double *aFreq;                  /* Array used to calculate phrase freq. */
+};
+
+/*
+** Callback used by fts5Bm25GetData() to count the number of rows in the
+** table matched by each individual phrase within the query.
+*/
+static int fts5CountCb(
+  const Fts5ExtensionApi *pApi, 
+  Fts5Context *pFts,
+  void *pUserData                 /* Pointer to sqlite3_int64 variable */
+){
+  sqlite3_int64 *pn = (sqlite3_int64*)pUserData;
+  UNUSED_PARAM2(pApi, pFts);
+  (*pn)++;
+  return SQLITE_OK;
+}
+
+/*
+** Set *ppData to point to the Fts5Bm25Data object for the current query. 
+** If the object has not already been allocated, allocate and populate it
+** now.
+*/
+static int fts5Bm25GetData(
+  const Fts5ExtensionApi *pApi, 
+  Fts5Context *pFts,
+  Fts5Bm25Data **ppData           /* OUT: bm25-data object for this query */
+){
+  int rc = SQLITE_OK;             /* Return code */
+  Fts5Bm25Data *p;                /* Object to return */
+
+  p = (Fts5Bm25Data*)pApi->xGetAuxdata(pFts, 0);
+  if( p==0 ){
+    int nPhrase;                  /* Number of phrases in query */
+    sqlite3_int64 nRow = 0;       /* Number of rows in table */
+    sqlite3_int64 nToken = 0;     /* Number of tokens in table */
+    sqlite3_int64 nByte;          /* Bytes of space to allocate */
+    int i;
+
+    /* Allocate the Fts5Bm25Data object */
+    nPhrase = pApi->xPhraseCount(pFts);
+    nByte = sizeof(Fts5Bm25Data) + nPhrase*2*sizeof(double);
+    p = (Fts5Bm25Data*)sqlite3_malloc64(nByte);
+    if( p==0 ){
+      rc = SQLITE_NOMEM;
+    }else{
+      memset(p, 0, (size_t)nByte);
+      p->nPhrase = nPhrase;
+      p->aIDF = (double*)&p[1];
+      p->aFreq = &p->aIDF[nPhrase];
+    }
+
+    /* Calculate the average document length for this FTS5 table */
+    if( rc==SQLITE_OK ) rc = pApi->xRowCount(pFts, &nRow);
+    assert( rc!=SQLITE_OK || nRow>0 );
+    if( rc==SQLITE_OK ) rc = pApi->xColumnTotalSize(pFts, -1, &nToken);
+    if( rc==SQLITE_OK ) p->avgdl = (double)nToken  / (double)nRow;
+
+    /* Calculate an IDF for each phrase in the query */
+    for(i=0; rc==SQLITE_OK && i<nPhrase; i++){
+      sqlite3_int64 nHit = 0;
+      rc = pApi->xQueryPhrase(pFts, i, (void*)&nHit, fts5CountCb);
+      if( rc==SQLITE_OK ){
+        /* Calculate the IDF (Inverse Document Frequency) for phrase i.
+        ** This is done using the standard BM25 formula as found on wikipedia:
+        **
+        **   IDF = log( (N - nHit + 0.5) / (nHit + 0.5) )
+        **
+        ** where "N" is the total number of documents in the set and nHit
+        ** is the number that contain at least one instance of the phrase
+        ** under consideration.
+        **
+        ** The problem with this is that if (N < 2*nHit), the IDF is 
+        ** negative. Which is undesirable. So the mimimum allowable IDF is
+        ** (1e-6) - roughly the same as a term that appears in just over
+        ** half of set of 5,000,000 documents.  */
+        double idf = log( (nRow - nHit + 0.5) / (nHit + 0.5) );
+        if( idf<=0.0 ) idf = 1e-6;
+        p->aIDF[i] = idf;
+      }
+    }
+
+    if( rc!=SQLITE_OK ){
+      sqlite3_free(p);
+    }else{
+      rc = pApi->xSetAuxdata(pFts, p, sqlite3_free);
+    }
+    if( rc!=SQLITE_OK ) p = 0;
+  }
+  *ppData = p;
+  return rc;
+}
+
+/*
+** Implementation of bm25() function.
+*/
+static void fts5Bm25Function(
+  const Fts5ExtensionApi *pApi,   /* API offered by current FTS version */
+  Fts5Context *pFts,              /* First arg to pass to pApi functions */
+  sqlite3_context *pCtx,          /* Context for returning result/error */
+  int nVal,                       /* Number of values in apVal[] array */
+  sqlite3_value **apVal           /* Array of trailing arguments */
+){
+  const double k1 = 1.2;          /* Constant "k1" from BM25 formula */
+  const double b = 0.75;          /* Constant "b" from BM25 formula */
+  int rc;                         /* Error code */
+  double score = 0.0;             /* SQL function return value */
+  Fts5Bm25Data *pData;            /* Values allocated/calculated once only */
+  int i;                          /* Iterator variable */
+  int nInst = 0;                  /* Value returned by xInstCount() */
+  double D = 0.0;                 /* Total number of tokens in row */
+  double *aFreq = 0;              /* Array of phrase freq. for current row */
+
+  /* Calculate the phrase frequency (symbol "f(qi,D)" in the documentation)
+  ** for each phrase in the query for the current row. */
+  rc = fts5Bm25GetData(pApi, pFts, &pData);
+  if( rc==SQLITE_OK ){
+    aFreq = pData->aFreq;
+    memset(aFreq, 0, sizeof(double) * pData->nPhrase);
+    rc = pApi->xInstCount(pFts, &nInst);
+  }
+  for(i=0; rc==SQLITE_OK && i<nInst; i++){
+    int ip; int ic; int io;
+    rc = pApi->xInst(pFts, i, &ip, &ic, &io);
+    if( rc==SQLITE_OK ){
+      double w = (nVal > ic) ? sqlite3_value_double(apVal[ic]) : 1.0;
+      aFreq[ip] += w;
+    }
+  }
+
+  /* Figure out the total size of the current row in tokens. */
+  if( rc==SQLITE_OK ){
+    int nTok;
+    rc = pApi->xColumnSize(pFts, -1, &nTok);
+    D = (double)nTok;
+  }
+
+  /* Determine and return the BM25 score for the current row. Or, if an
+  ** error has occurred, throw an exception. */
+  if( rc==SQLITE_OK ){
+    for(i=0; i<pData->nPhrase; i++){
+      score += pData->aIDF[i] * (
+          ( aFreq[i] * (k1 + 1.0) ) / 
+          ( aFreq[i] + k1 * (1 - b + b * D / pData->avgdl) )
+      );
+    }
+    sqlite3_result_double(pCtx, -1.0 * score);
+  }else{
+    sqlite3_result_error_code(pCtx, rc);
+  }
+}
+
+/*
+** Implementation of fts5_get_locale() function.
+*/
+static void fts5GetLocaleFunction(
+  const Fts5ExtensionApi *pApi,   /* API offered by current FTS version */
+  Fts5Context *pFts,              /* First arg to pass to pApi functions */
+  sqlite3_context *pCtx,          /* Context for returning result/error */
+  int nVal,                       /* Number of values in apVal[] array */
+  sqlite3_value **apVal           /* Array of trailing arguments */
+){
+  int iCol = 0;
+  int eType = 0;
+  int rc = SQLITE_OK;
+  const char *zLocale = 0;
+  int nLocale = 0;
+
+  /* xColumnLocale() must be available */
+  assert( pApi->iVersion>=4 );
+
+  if( nVal!=1 ){
+    const char *z = "wrong number of arguments to function fts5_get_locale()";
+    sqlite3_result_error(pCtx, z, -1);
+    return;
+  }
+
+  eType = sqlite3_value_numeric_type(apVal[0]);
+  if( eType!=SQLITE_INTEGER ){
+    const char *z = "non-integer argument passed to function fts5_get_locale()";
+    sqlite3_result_error(pCtx, z, -1);
+    return;
+  }
+
+  iCol = sqlite3_value_int(apVal[0]);
+  if( iCol<0 || iCol>=pApi->xColumnCount(pFts) ){
+    sqlite3_result_error_code(pCtx, SQLITE_RANGE);
+    return;
+  }
+
+  rc = pApi->xColumnLocale(pFts, iCol, &zLocale, &nLocale);
+  if( rc!=SQLITE_OK ){
+    sqlite3_result_error_code(pCtx, rc);
+    return;
+  }
+
+  sqlite3_result_text(pCtx, zLocale, nLocale, SQLITE_TRANSIENT);
+}
+
+int sqlite3Fts5AuxInit(fts5_api *pApi){
+  struct Builtin {
+    const char *zFunc;            /* Function name (nul-terminated) */
+    void *pUserData;              /* User-data pointer */
+    fts5_extension_function xFunc;/* Callback function */
+    void (*xDestroy)(void*);      /* Destructor function */
+  } aBuiltin [] = {
+    { "snippet",         0, fts5SnippetFunction,   0 },
+    { "highlight",       0, fts5HighlightFunction, 0 },
+    { "bm25",            0, fts5Bm25Function,      0 },
+    { "fts5_get_locale", 0, fts5GetLocaleFunction, 0 },
+  };
+  int rc = SQLITE_OK;             /* Return code */
+  int i;                          /* To iterate through builtin functions */
+
+  for(i=0; rc==SQLITE_OK && i<ArraySize(aBuiltin); i++){
+    rc = pApi->xCreateFunction(pApi,
+        aBuiltin[i].zFunc,
+        aBuiltin[i].pUserData,
+        aBuiltin[i].xFunc,
+        aBuiltin[i].xDestroy
+    );
+  }
+
+  return rc;
+}
diff --git a/ext/fts5/fts5_buffer.c b/ext/fts5/fts5_buffer.c
new file mode 100644
index 0000000000000000000000000000000000000000..891ef0203aff1c6fb2cf17bc93490ca9b5f24433
--- /dev/null
+++ b/ext/fts5/fts5_buffer.c
@@ -0,0 +1,411 @@
+/*
+** 2014 May 31
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+*/
+
+
+
+#include "fts5Int.h"
+
+int sqlite3Fts5BufferSize(int *pRc, Fts5Buffer *pBuf, u32 nByte){
+  if( (u32)pBuf->nSpace<nByte ){
+    u64 nNew = pBuf->nSpace ? pBuf->nSpace : 64;
+    u8 *pNew;
+    while( nNew<nByte ){
+      nNew = nNew * 2;
+    }
+    pNew = sqlite3_realloc64(pBuf->p, nNew);
+    if( pNew==0 ){
+      *pRc = SQLITE_NOMEM;
+      return 1;
+    }else{
+      pBuf->nSpace = (int)nNew;
+      pBuf->p = pNew;
+    }
+  }
+  return 0;
+}
+
+
+/*
+** Encode value iVal as an SQLite varint and append it to the buffer object
+** pBuf. If an OOM error occurs, set the error code in p.
+*/
+void sqlite3Fts5BufferAppendVarint(int *pRc, Fts5Buffer *pBuf, i64 iVal){
+  if( fts5BufferGrow(pRc, pBuf, 9) ) return;
+  pBuf->n += sqlite3Fts5PutVarint(&pBuf->p[pBuf->n], iVal);
+}
+
+void sqlite3Fts5Put32(u8 *aBuf, int iVal){
+  aBuf[0] = (iVal>>24) & 0x00FF;
+  aBuf[1] = (iVal>>16) & 0x00FF;
+  aBuf[2] = (iVal>> 8) & 0x00FF;
+  aBuf[3] = (iVal>> 0) & 0x00FF;
+}
+
+int sqlite3Fts5Get32(const u8 *aBuf){
+  return (int)((((u32)aBuf[0])<<24) + (aBuf[1]<<16) + (aBuf[2]<<8) + aBuf[3]);
+}
+
+/*
+** Append buffer nData/pData to buffer pBuf. If an OOM error occurs, set 
+** the error code in p. If an error has already occurred when this function
+** is called, it is a no-op.
+*/
+void sqlite3Fts5BufferAppendBlob(
+  int *pRc,
+  Fts5Buffer *pBuf, 
+  u32 nData, 
+  const u8 *pData
+){
+  if( nData ){
+    if( fts5BufferGrow(pRc, pBuf, nData) ) return;
+    assert( pBuf->p!=0 );
+    memcpy(&pBuf->p[pBuf->n], pData, nData);
+    pBuf->n += nData;
+  }
+}
+
+/*
+** Append the nul-terminated string zStr to the buffer pBuf. This function
+** ensures that the byte following the buffer data is set to 0x00, even 
+** though this byte is not included in the pBuf->n count.
+*/
+void sqlite3Fts5BufferAppendString(
+  int *pRc,
+  Fts5Buffer *pBuf, 
+  const char *zStr
+){
+  int nStr = (int)strlen(zStr);
+  sqlite3Fts5BufferAppendBlob(pRc, pBuf, nStr+1, (const u8*)zStr);
+  pBuf->n--;
+}
+
+/*
+** Argument zFmt is a printf() style format string. This function performs
+** the printf() style processing, then appends the results to buffer pBuf.
+**
+** Like sqlite3Fts5BufferAppendString(), this function ensures that the byte 
+** following the buffer data is set to 0x00, even though this byte is not
+** included in the pBuf->n count.
+*/ 
+void sqlite3Fts5BufferAppendPrintf(
+  int *pRc,
+  Fts5Buffer *pBuf, 
+  char *zFmt, ...
+){
+  if( *pRc==SQLITE_OK ){
+    char *zTmp;
+    va_list ap;
+    va_start(ap, zFmt);
+    zTmp = sqlite3_vmprintf(zFmt, ap);
+    va_end(ap);
+
+    if( zTmp==0 ){
+      *pRc = SQLITE_NOMEM;
+    }else{
+      sqlite3Fts5BufferAppendString(pRc, pBuf, zTmp);
+      sqlite3_free(zTmp);
+    }
+  }
+}
+
+char *sqlite3Fts5Mprintf(int *pRc, const char *zFmt, ...){
+  char *zRet = 0;
+  if( *pRc==SQLITE_OK ){
+    va_list ap;
+    va_start(ap, zFmt);
+    zRet = sqlite3_vmprintf(zFmt, ap);
+    va_end(ap);
+    if( zRet==0 ){
+      *pRc = SQLITE_NOMEM; 
+    }
+  }
+  return zRet;
+}
+ 
+
+/*
+** Free any buffer allocated by pBuf. Zero the structure before returning.
+*/
+void sqlite3Fts5BufferFree(Fts5Buffer *pBuf){
+  sqlite3_free(pBuf->p);
+  memset(pBuf, 0, sizeof(Fts5Buffer));
+}
+
+/*
+** Zero the contents of the buffer object. But do not free the associated 
+** memory allocation.
+*/
+void sqlite3Fts5BufferZero(Fts5Buffer *pBuf){
+  pBuf->n = 0;
+}
+
+/*
+** Set the buffer to contain nData/pData. If an OOM error occurs, leave an
+** the error code in p. If an error has already occurred when this function
+** is called, it is a no-op.
+*/
+void sqlite3Fts5BufferSet(
+  int *pRc,
+  Fts5Buffer *pBuf, 
+  int nData, 
+  const u8 *pData
+){
+  pBuf->n = 0;
+  sqlite3Fts5BufferAppendBlob(pRc, pBuf, nData, pData);
+}
+
+int sqlite3Fts5PoslistNext64(
+  const u8 *a, int n,             /* Buffer containing poslist */
+  int *pi,                        /* IN/OUT: Offset within a[] */
+  i64 *piOff                      /* IN/OUT: Current offset */
+){
+  int i = *pi;
+  assert( a!=0 || i==0 );
+  if( i>=n ){
+    /* EOF */
+    *piOff = -1;
+    return 1;  
+  }else{
+    i64 iOff = *piOff;
+    u32 iVal;
+    assert( a!=0 );
+    fts5FastGetVarint32(a, i, iVal);
+    if( iVal<=1 ){
+      if( iVal==0 ){
+        *pi = i;
+        return 0;
+      }
+      fts5FastGetVarint32(a, i, iVal);
+      iOff = ((i64)iVal) << 32;
+      assert( iOff>=0 );
+      fts5FastGetVarint32(a, i, iVal);
+      if( iVal<2 ){
+        /* This is a corrupt record. So stop parsing it here. */
+        *piOff = -1;
+        return 1;
+      }
+      *piOff = iOff + ((iVal-2) & 0x7FFFFFFF);
+    }else{
+      *piOff = (iOff & (i64)0x7FFFFFFF<<32)+((iOff + (iVal-2)) & 0x7FFFFFFF);
+    }
+    *pi = i;
+    assert_nc( *piOff>=iOff );
+    return 0;
+  }
+}
+
+
+/*
+** Advance the iterator object passed as the only argument. Return true
+** if the iterator reaches EOF, or false otherwise.
+*/
+int sqlite3Fts5PoslistReaderNext(Fts5PoslistReader *pIter){
+  if( sqlite3Fts5PoslistNext64(pIter->a, pIter->n, &pIter->i, &pIter->iPos) ){
+    pIter->bEof = 1;
+  }
+  return pIter->bEof;
+}
+
+int sqlite3Fts5PoslistReaderInit(
+  const u8 *a, int n,             /* Poslist buffer to iterate through */
+  Fts5PoslistReader *pIter        /* Iterator object to initialize */
+){
+  memset(pIter, 0, sizeof(*pIter));
+  pIter->a = a;
+  pIter->n = n;
+  sqlite3Fts5PoslistReaderNext(pIter);
+  return pIter->bEof;
+}
+
+/*
+** Append position iPos to the position list being accumulated in buffer
+** pBuf, which must be already be large enough to hold the new data.
+** The previous position written to this list is *piPrev. *piPrev is set
+** to iPos before returning.
+*/
+void sqlite3Fts5PoslistSafeAppend(
+  Fts5Buffer *pBuf, 
+  i64 *piPrev, 
+  i64 iPos
+){
+  if( iPos>=*piPrev ){
+    static const i64 colmask = ((i64)(0x7FFFFFFF)) << 32;
+    if( (iPos & colmask) != (*piPrev & colmask) ){
+      pBuf->p[pBuf->n++] = 1;
+      pBuf->n += sqlite3Fts5PutVarint(&pBuf->p[pBuf->n], (iPos>>32));
+      *piPrev = (iPos & colmask);
+    }
+    pBuf->n += sqlite3Fts5PutVarint(&pBuf->p[pBuf->n], (iPos-*piPrev)+2);
+    *piPrev = iPos;
+  }
+}
+
+int sqlite3Fts5PoslistWriterAppend(
+  Fts5Buffer *pBuf, 
+  Fts5PoslistWriter *pWriter,
+  i64 iPos
+){
+  int rc = 0;   /* Initialized only to suppress erroneous warning from Clang */
+  if( fts5BufferGrow(&rc, pBuf, 5+5+5) ) return rc;
+  sqlite3Fts5PoslistSafeAppend(pBuf, &pWriter->iPrev, iPos);
+  return SQLITE_OK;
+}
+
+void *sqlite3Fts5MallocZero(int *pRc, sqlite3_int64 nByte){
+  void *pRet = 0;
+  if( *pRc==SQLITE_OK ){
+    pRet = sqlite3_malloc64(nByte);
+    if( pRet==0 ){
+      if( nByte>0 ) *pRc = SQLITE_NOMEM;
+    }else{
+      memset(pRet, 0, (size_t)nByte);
+    }
+  }
+  return pRet;
+}
+
+/*
+** Return a nul-terminated copy of the string indicated by pIn. If nIn
+** is non-negative, then it is the length of the string in bytes. Otherwise,
+** the length of the string is determined using strlen().
+**
+** It is the responsibility of the caller to eventually free the returned
+** buffer using sqlite3_free(). If an OOM error occurs, NULL is returned. 
+*/
+char *sqlite3Fts5Strndup(int *pRc, const char *pIn, int nIn){
+  char *zRet = 0;
+  if( *pRc==SQLITE_OK ){
+    if( nIn<0 ){
+      nIn = (int)strlen(pIn);
+    }
+    zRet = (char*)sqlite3_malloc(nIn+1);
+    if( zRet ){
+      memcpy(zRet, pIn, nIn);
+      zRet[nIn] = '\0';
+    }else{
+      *pRc = SQLITE_NOMEM;
+    }
+  }
+  return zRet;
+}
+
+
+/*
+** Return true if character 't' may be part of an FTS5 bareword, or false
+** otherwise. Characters that may be part of barewords:
+**
+**   * All non-ASCII characters,
+**   * The 52 upper and lower case ASCII characters, and
+**   * The 10 integer ASCII characters.
+**   * The underscore character "_" (0x5F).
+**   * The unicode "subsitute" character (0x1A).
+*/
+int sqlite3Fts5IsBareword(char t){
+  u8 aBareword[128] = {
+    0, 0, 0, 0, 0, 0, 0, 0,    0, 0, 0, 0, 0, 0, 0, 0,   /* 0x00 .. 0x0F */
+    0, 0, 0, 0, 0, 0, 0, 0,    0, 0, 1, 0, 0, 0, 0, 0,   /* 0x10 .. 0x1F */
+    0, 0, 0, 0, 0, 0, 0, 0,    0, 0, 0, 0, 0, 0, 0, 0,   /* 0x20 .. 0x2F */
+    1, 1, 1, 1, 1, 1, 1, 1,    1, 1, 0, 0, 0, 0, 0, 0,   /* 0x30 .. 0x3F */
+    0, 1, 1, 1, 1, 1, 1, 1,    1, 1, 1, 1, 1, 1, 1, 1,   /* 0x40 .. 0x4F */
+    1, 1, 1, 1, 1, 1, 1, 1,    1, 1, 1, 0, 0, 0, 0, 1,   /* 0x50 .. 0x5F */
+    0, 1, 1, 1, 1, 1, 1, 1,    1, 1, 1, 1, 1, 1, 1, 1,   /* 0x60 .. 0x6F */
+    1, 1, 1, 1, 1, 1, 1, 1,    1, 1, 1, 0, 0, 0, 0, 0    /* 0x70 .. 0x7F */
+  };
+
+  return (t & 0x80) || aBareword[(int)t];
+}
+
+
+/*************************************************************************
+*/
+typedef struct Fts5TermsetEntry Fts5TermsetEntry;
+struct Fts5TermsetEntry {
+  char *pTerm;
+  int nTerm;
+  int iIdx;                       /* Index (main or aPrefix[] entry) */
+  Fts5TermsetEntry *pNext;
+};
+
+struct Fts5Termset {
+  Fts5TermsetEntry *apHash[512];
+};
+
+int sqlite3Fts5TermsetNew(Fts5Termset **pp){
+  int rc = SQLITE_OK;
+  *pp = sqlite3Fts5MallocZero(&rc, sizeof(Fts5Termset));
+  return rc;
+}
+
+int sqlite3Fts5TermsetAdd(
+  Fts5Termset *p, 
+  int iIdx,
+  const char *pTerm, int nTerm, 
+  int *pbPresent
+){
+  int rc = SQLITE_OK;
+  *pbPresent = 0;
+  if( p ){
+    int i;
+    u32 hash = 13;
+    Fts5TermsetEntry *pEntry;
+
+    /* Calculate a hash value for this term. This is the same hash checksum
+    ** used by the fts5_hash.c module. This is not important for correct
+    ** operation of the module, but is necessary to ensure that some tests
+    ** designed to produce hash table collisions really do work.  */
+    for(i=nTerm-1; i>=0; i--){
+      hash = (hash << 3) ^ hash ^ pTerm[i];
+    }
+    hash = (hash << 3) ^ hash ^ iIdx;
+    hash = hash % ArraySize(p->apHash);
+
+    for(pEntry=p->apHash[hash]; pEntry; pEntry=pEntry->pNext){
+      if( pEntry->iIdx==iIdx 
+          && pEntry->nTerm==nTerm 
+          && memcmp(pEntry->pTerm, pTerm, nTerm)==0 
+      ){
+        *pbPresent = 1;
+        break;
+      }
+    }
+
+    if( pEntry==0 ){
+      pEntry = sqlite3Fts5MallocZero(&rc, sizeof(Fts5TermsetEntry) + nTerm);
+      if( pEntry ){
+        pEntry->pTerm = (char*)&pEntry[1];
+        pEntry->nTerm = nTerm;
+        pEntry->iIdx = iIdx;
+        memcpy(pEntry->pTerm, pTerm, nTerm);
+        pEntry->pNext = p->apHash[hash];
+        p->apHash[hash] = pEntry;
+      }
+    }
+  }
+
+  return rc;
+}
+
+void sqlite3Fts5TermsetFree(Fts5Termset *p){
+  if( p ){
+    u32 i;
+    for(i=0; i<ArraySize(p->apHash); i++){
+      Fts5TermsetEntry *pEntry = p->apHash[i];
+      while( pEntry ){
+        Fts5TermsetEntry *pDel = pEntry;
+        pEntry = pEntry->pNext;
+        sqlite3_free(pDel);
+      }
+    }
+    sqlite3_free(p);
+  }
+}
diff --git a/ext/fts5/fts5_config.c b/ext/fts5/fts5_config.c
new file mode 100644
index 0000000000000000000000000000000000000000..eea82b046deda92b4444cb9c0dce59a9b77b21b5
--- /dev/null
+++ b/ext/fts5/fts5_config.c
@@ -0,0 +1,1127 @@
+/*
+** 2014 Jun 09
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This is an SQLite module implementing full-text search.
+*/
+
+
+#include "fts5Int.h"
+
+#define FTS5_DEFAULT_PAGE_SIZE   4050
+#define FTS5_DEFAULT_AUTOMERGE      4
+#define FTS5_DEFAULT_USERMERGE      4
+#define FTS5_DEFAULT_CRISISMERGE   16
+#define FTS5_DEFAULT_HASHSIZE    (1024*1024)
+
+#define FTS5_DEFAULT_DELETE_AUTOMERGE 10      /* default 10% */
+
+/* Maximum allowed page size */
+#define FTS5_MAX_PAGE_SIZE (64*1024)
+
+static int fts5_iswhitespace(char x){
+  return (x==' ');
+}
+
+static int fts5_isopenquote(char x){
+  return (x=='"' || x=='\'' || x=='[' || x=='`');
+}
+
+/*
+** Argument pIn points to a character that is part of a nul-terminated 
+** string. Return a pointer to the first character following *pIn in 
+** the string that is not a white-space character.
+*/
+static const char *fts5ConfigSkipWhitespace(const char *pIn){
+  const char *p = pIn;
+  if( p ){
+    while( fts5_iswhitespace(*p) ){ p++; }
+  }
+  return p;
+}
+
+/*
+** Argument pIn points to a character that is part of a nul-terminated 
+** string. Return a pointer to the first character following *pIn in 
+** the string that is not a "bareword" character.
+*/
+static const char *fts5ConfigSkipBareword(const char *pIn){
+  const char *p = pIn;
+  while ( sqlite3Fts5IsBareword(*p) ) p++;
+  if( p==pIn ) p = 0;
+  return p;
+}
+
+static int fts5_isdigit(char a){
+  return (a>='0' && a<='9');
+}
+
+
+
+static const char *fts5ConfigSkipLiteral(const char *pIn){
+  const char *p = pIn;
+  switch( *p ){
+    case 'n': case 'N':
+      if( sqlite3_strnicmp("null", p, 4)==0 ){
+        p = &p[4];
+      }else{
+        p = 0;
+      }
+      break;
+
+    case 'x': case 'X':
+      p++;
+      if( *p=='\'' ){
+        p++;
+        while( (*p>='a' && *p<='f') 
+            || (*p>='A' && *p<='F') 
+            || (*p>='0' && *p<='9') 
+            ){
+          p++;
+        }
+        if( *p=='\'' && 0==((p-pIn)%2) ){
+          p++;
+        }else{
+          p = 0;
+        }
+      }else{
+        p = 0;
+      }
+      break;
+
+    case '\'':
+      p++;
+      while( p ){
+        if( *p=='\'' ){
+          p++;
+          if( *p!='\'' ) break;
+        }
+        p++;
+        if( *p==0 ) p = 0;
+      }
+      break;
+
+    default:
+      /* maybe a number */
+      if( *p=='+' || *p=='-' ) p++;
+      while( fts5_isdigit(*p) ) p++;
+
+      /* At this point, if the literal was an integer, the parse is 
+      ** finished. Or, if it is a floating point value, it may continue
+      ** with either a decimal point or an 'E' character. */
+      if( *p=='.' && fts5_isdigit(p[1]) ){
+        p += 2;
+        while( fts5_isdigit(*p) ) p++;
+      }
+      if( p==pIn ) p = 0;
+
+      break;
+  }
+
+  return p;
+}
+
+/*
+** The first character of the string pointed to by argument z is guaranteed
+** to be an open-quote character (see function fts5_isopenquote()).
+**
+** This function searches for the corresponding close-quote character within
+** the string and, if found, dequotes the string in place and adds a new
+** nul-terminator byte.
+**
+** If the close-quote is found, the value returned is the byte offset of
+** the character immediately following it. Or, if the close-quote is not 
+** found, -1 is returned. If -1 is returned, the buffer is left in an 
+** undefined state.
+*/
+static int fts5Dequote(char *z){
+  char q;
+  int iIn = 1;
+  int iOut = 0;
+  q = z[0];
+
+  /* Set stack variable q to the close-quote character */
+  assert( q=='[' || q=='\'' || q=='"' || q=='`' );
+  if( q=='[' ) q = ']';  
+
+  while( z[iIn] ){
+    if( z[iIn]==q ){
+      if( z[iIn+1]!=q ){
+        /* Character iIn was the close quote. */
+        iIn++;
+        break;
+      }else{
+        /* Character iIn and iIn+1 form an escaped quote character. Skip
+        ** the input cursor past both and copy a single quote character 
+        ** to the output buffer. */
+        iIn += 2;
+        z[iOut++] = q;
+      }
+    }else{
+      z[iOut++] = z[iIn++];
+    }
+  }
+
+  z[iOut] = '\0';
+  return iIn;
+}
+
+/*
+** Convert an SQL-style quoted string into a normal string by removing
+** the quote characters.  The conversion is done in-place.  If the
+** input does not begin with a quote character, then this routine
+** is a no-op.
+**
+** Examples:
+**
+**     "abc"   becomes   abc
+**     'xyz'   becomes   xyz
+**     [pqr]   becomes   pqr
+**     `mno`   becomes   mno
+*/
+void sqlite3Fts5Dequote(char *z){
+  char quote;                     /* Quote character (if any ) */
+
+  assert( 0==fts5_iswhitespace(z[0]) );
+  quote = z[0];
+  if( quote=='[' || quote=='\'' || quote=='"' || quote=='`' ){
+    fts5Dequote(z);
+  }
+}
+
+
+struct Fts5Enum {
+  const char *zName;
+  int eVal;
+};
+typedef struct Fts5Enum Fts5Enum;
+
+static int fts5ConfigSetEnum(
+  const Fts5Enum *aEnum, 
+  const char *zEnum, 
+  int *peVal
+){
+  int nEnum = (int)strlen(zEnum);
+  int i;
+  int iVal = -1;
+
+  for(i=0; aEnum[i].zName; i++){
+    if( sqlite3_strnicmp(aEnum[i].zName, zEnum, nEnum)==0 ){
+      if( iVal>=0 ) return SQLITE_ERROR;
+      iVal = aEnum[i].eVal;
+    }
+  }
+
+  *peVal = iVal;
+  return iVal<0 ? SQLITE_ERROR : SQLITE_OK;
+}
+
+/*
+** Parse a "special" CREATE VIRTUAL TABLE directive and update
+** configuration object pConfig as appropriate.
+**
+** If successful, object pConfig is updated and SQLITE_OK returned. If
+** an error occurs, an SQLite error code is returned and an error message
+** may be left in *pzErr. It is the responsibility of the caller to
+** eventually free any such error message using sqlite3_free().
+*/
+static int fts5ConfigParseSpecial(
+  Fts5Config *pConfig,            /* Configuration object to update */
+  const char *zCmd,               /* Special command to parse */
+  const char *zArg,               /* Argument to parse */
+  char **pzErr                    /* OUT: Error message */
+){
+  int rc = SQLITE_OK;
+  int nCmd = (int)strlen(zCmd);
+
+  if( sqlite3_strnicmp("prefix", zCmd, nCmd)==0 ){
+    const int nByte = sizeof(int) * FTS5_MAX_PREFIX_INDEXES;
+    const char *p;
+    int bFirst = 1;
+    if( pConfig->aPrefix==0 ){
+      pConfig->aPrefix = sqlite3Fts5MallocZero(&rc, nByte);
+      if( rc ) return rc;
+    }
+
+    p = zArg;
+    while( 1 ){
+      int nPre = 0;
+
+      while( p[0]==' ' ) p++;
+      if( bFirst==0 && p[0]==',' ){
+        p++;
+        while( p[0]==' ' ) p++;
+      }else if( p[0]=='\0' ){
+        break;
+      }
+      if( p[0]<'0' || p[0]>'9' ){
+        *pzErr = sqlite3_mprintf("malformed prefix=... directive");
+        rc = SQLITE_ERROR;
+        break;
+      }
+
+      if( pConfig->nPrefix==FTS5_MAX_PREFIX_INDEXES ){
+        *pzErr = sqlite3_mprintf(
+            "too many prefix indexes (max %d)", FTS5_MAX_PREFIX_INDEXES
+        );
+        rc = SQLITE_ERROR;
+        break;
+      }
+
+      while( p[0]>='0' && p[0]<='9' && nPre<1000 ){
+        nPre = nPre*10 + (p[0] - '0');
+        p++;
+      }
+
+      if( nPre<=0 || nPre>=1000 ){
+        *pzErr = sqlite3_mprintf("prefix length out of range (max 999)");
+        rc = SQLITE_ERROR;
+        break;
+      }
+
+      pConfig->aPrefix[pConfig->nPrefix] = nPre;
+      pConfig->nPrefix++;
+      bFirst = 0;
+    }
+    assert( pConfig->nPrefix<=FTS5_MAX_PREFIX_INDEXES );
+    return rc;
+  }
+
+  if( sqlite3_strnicmp("tokenize", zCmd, nCmd)==0 ){
+    const char *p = (const char*)zArg;
+    sqlite3_int64 nArg = strlen(zArg) + 1;
+    char **azArg = sqlite3Fts5MallocZero(&rc, (sizeof(char*) + 2) * nArg);
+
+    if( azArg ){
+      char *pSpace = (char*)&azArg[nArg];
+      if( pConfig->t.azArg ){
+        *pzErr = sqlite3_mprintf("multiple tokenize=... directives");
+        rc = SQLITE_ERROR;
+      }else{
+        for(nArg=0; p && *p; nArg++){
+          const char *p2 = fts5ConfigSkipWhitespace(p);
+          if( *p2=='\'' ){
+            p = fts5ConfigSkipLiteral(p2);
+          }else{
+            p = fts5ConfigSkipBareword(p2);
+          }
+          if( p ){
+            memcpy(pSpace, p2, p-p2);
+            azArg[nArg] = pSpace;
+            sqlite3Fts5Dequote(pSpace);
+            pSpace += (p - p2) + 1;
+            p = fts5ConfigSkipWhitespace(p);
+          }
+        }
+        if( p==0 ){
+          *pzErr = sqlite3_mprintf("parse error in tokenize directive");
+          rc = SQLITE_ERROR;
+        }else{
+          pConfig->t.azArg = (const char**)azArg;
+          pConfig->t.nArg = nArg;
+          azArg = 0;
+        }
+      }
+    }
+    sqlite3_free(azArg);
+
+    return rc;
+  }
+
+  if( sqlite3_strnicmp("content", zCmd, nCmd)==0 ){
+    if( pConfig->eContent!=FTS5_CONTENT_NORMAL ){
+      *pzErr = sqlite3_mprintf("multiple content=... directives");
+      rc = SQLITE_ERROR;
+    }else{
+      if( zArg[0] ){
+        pConfig->eContent = FTS5_CONTENT_EXTERNAL;
+        pConfig->zContent = sqlite3Fts5Mprintf(&rc, "%Q.%Q", pConfig->zDb,zArg);
+      }else{
+        pConfig->eContent = FTS5_CONTENT_NONE;
+      }
+    }
+    return rc;
+  }
+
+  if( sqlite3_strnicmp("contentless_delete", zCmd, nCmd)==0 ){
+    if( (zArg[0]!='0' && zArg[0]!='1') || zArg[1]!='\0' ){
+      *pzErr = sqlite3_mprintf("malformed contentless_delete=... directive");
+      rc = SQLITE_ERROR;
+    }else{
+      pConfig->bContentlessDelete = (zArg[0]=='1');
+    }
+    return rc;
+  }
+
+  if( sqlite3_strnicmp("contentless_unindexed", zCmd, nCmd)==0 ){
+    if( (zArg[0]!='0' && zArg[0]!='1') || zArg[1]!='\0' ){
+      *pzErr = sqlite3_mprintf("malformed contentless_delete=... directive");
+      rc = SQLITE_ERROR;
+    }else{
+      pConfig->bContentlessUnindexed = (zArg[0]=='1');
+    }
+    return rc;
+  }
+
+  if( sqlite3_strnicmp("content_rowid", zCmd, nCmd)==0 ){
+    if( pConfig->zContentRowid ){
+      *pzErr = sqlite3_mprintf("multiple content_rowid=... directives");
+      rc = SQLITE_ERROR;
+    }else{
+      pConfig->zContentRowid = sqlite3Fts5Strndup(&rc, zArg, -1);
+    }
+    return rc;
+  }
+
+  if( sqlite3_strnicmp("columnsize", zCmd, nCmd)==0 ){
+    if( (zArg[0]!='0' && zArg[0]!='1') || zArg[1]!='\0' ){
+      *pzErr = sqlite3_mprintf("malformed columnsize=... directive");
+      rc = SQLITE_ERROR;
+    }else{
+      pConfig->bColumnsize = (zArg[0]=='1');
+    }
+    return rc;
+  }
+
+  if( sqlite3_strnicmp("locale", zCmd, nCmd)==0 ){
+    if( (zArg[0]!='0' && zArg[0]!='1') || zArg[1]!='\0' ){
+      *pzErr = sqlite3_mprintf("malformed locale=... directive");
+      rc = SQLITE_ERROR;
+    }else{
+      pConfig->bLocale = (zArg[0]=='1');
+    }
+    return rc;
+  }
+
+  if( sqlite3_strnicmp("detail", zCmd, nCmd)==0 ){
+    const Fts5Enum aDetail[] = {
+      { "none", FTS5_DETAIL_NONE },
+      { "full", FTS5_DETAIL_FULL },
+      { "columns", FTS5_DETAIL_COLUMNS },
+      { 0, 0 }
+    };
+
+    if( (rc = fts5ConfigSetEnum(aDetail, zArg, &pConfig->eDetail)) ){
+      *pzErr = sqlite3_mprintf("malformed detail=... directive");
+    }
+    return rc;
+  }
+
+  if( sqlite3_strnicmp("tokendata", zCmd, nCmd)==0 ){
+    if( (zArg[0]!='0' && zArg[0]!='1') || zArg[1]!='\0' ){
+      *pzErr = sqlite3_mprintf("malformed tokendata=... directive");
+      rc = SQLITE_ERROR;
+    }else{
+      pConfig->bTokendata = (zArg[0]=='1');
+    }
+    return rc;
+  }
+
+  *pzErr = sqlite3_mprintf("unrecognized option: \"%.*s\"", nCmd, zCmd);
+  return SQLITE_ERROR;
+}
+
+/*
+** Gobble up the first bareword or quoted word from the input buffer zIn.
+** Return a pointer to the character immediately following the last in
+** the gobbled word if successful, or a NULL pointer otherwise (failed
+** to find close-quote character).
+**
+** Before returning, set pzOut to point to a new buffer containing a
+** nul-terminated, dequoted copy of the gobbled word. If the word was
+** quoted, *pbQuoted is also set to 1 before returning.
+**
+** If *pRc is other than SQLITE_OK when this function is called, it is
+** a no-op (NULL is returned). Otherwise, if an OOM occurs within this
+** function, *pRc is set to SQLITE_NOMEM before returning. *pRc is *not*
+** set if a parse error (failed to find close quote) occurs.
+*/
+static const char *fts5ConfigGobbleWord(
+  int *pRc,                       /* IN/OUT: Error code */
+  const char *zIn,                /* Buffer to gobble string/bareword from */
+  char **pzOut,                   /* OUT: malloc'd buffer containing str/bw */
+  int *pbQuoted                   /* OUT: Set to true if dequoting required */
+){
+  const char *zRet = 0;
+
+  sqlite3_int64 nIn = strlen(zIn);
+  char *zOut = sqlite3_malloc64(nIn+1);
+
+  assert( *pRc==SQLITE_OK );
+  *pbQuoted = 0;
+  *pzOut = 0;
+
+  if( zOut==0 ){
+    *pRc = SQLITE_NOMEM;
+  }else{
+    memcpy(zOut, zIn, (size_t)(nIn+1));
+    if( fts5_isopenquote(zOut[0]) ){
+      int ii = fts5Dequote(zOut);
+      zRet = &zIn[ii];
+      *pbQuoted = 1;
+    }else{
+      zRet = fts5ConfigSkipBareword(zIn);
+      if( zRet ){
+        zOut[zRet-zIn] = '\0';
+      }
+    }
+  }
+
+  if( zRet==0 ){
+    sqlite3_free(zOut);
+  }else{
+    *pzOut = zOut;
+  }
+
+  return zRet;
+}
+
+static int fts5ConfigParseColumn(
+  Fts5Config *p, 
+  char *zCol, 
+  char *zArg, 
+  char **pzErr,
+  int *pbUnindexed
+){
+  int rc = SQLITE_OK;
+  if( 0==sqlite3_stricmp(zCol, FTS5_RANK_NAME) 
+   || 0==sqlite3_stricmp(zCol, FTS5_ROWID_NAME) 
+  ){
+    *pzErr = sqlite3_mprintf("reserved fts5 column name: %s", zCol);
+    rc = SQLITE_ERROR;
+  }else if( zArg ){
+    if( 0==sqlite3_stricmp(zArg, "unindexed") ){
+      p->abUnindexed[p->nCol] = 1;
+      *pbUnindexed = 1;
+    }else{
+      *pzErr = sqlite3_mprintf("unrecognized column option: %s", zArg);
+      rc = SQLITE_ERROR;
+    }
+  }
+
+  p->azCol[p->nCol++] = zCol;
+  return rc;
+}
+
+/*
+** Populate the Fts5Config.zContentExprlist string.
+*/
+static int fts5ConfigMakeExprlist(Fts5Config *p){
+  int i;
+  int rc = SQLITE_OK;
+  Fts5Buffer buf = {0, 0, 0};
+
+  sqlite3Fts5BufferAppendPrintf(&rc, &buf, "T.%Q", p->zContentRowid);
+  if( p->eContent!=FTS5_CONTENT_NONE ){
+    assert( p->eContent==FTS5_CONTENT_EXTERNAL
+         || p->eContent==FTS5_CONTENT_NORMAL
+         || p->eContent==FTS5_CONTENT_UNINDEXED
+    );
+    for(i=0; i<p->nCol; i++){
+      if( p->eContent==FTS5_CONTENT_EXTERNAL ){
+        sqlite3Fts5BufferAppendPrintf(&rc, &buf, ", T.%Q", p->azCol[i]);
+      }else if( p->eContent==FTS5_CONTENT_NORMAL || p->abUnindexed[i] ){
+        sqlite3Fts5BufferAppendPrintf(&rc, &buf, ", T.c%d", i);
+      }else{
+        sqlite3Fts5BufferAppendPrintf(&rc, &buf, ", NULL");
+      }
+    }
+  }
+  if( p->eContent==FTS5_CONTENT_NORMAL && p->bLocale ){
+    for(i=0; i<p->nCol; i++){
+      if( p->abUnindexed[i]==0 ){
+        sqlite3Fts5BufferAppendPrintf(&rc, &buf, ", T.l%d", i);
+      }else{
+        sqlite3Fts5BufferAppendPrintf(&rc, &buf, ", NULL");
+      }
+    }
+  }
+
+  assert( p->zContentExprlist==0 );
+  p->zContentExprlist = (char*)buf.p;
+  return rc;
+}
+
+/*
+** Arguments nArg/azArg contain the string arguments passed to the xCreate
+** or xConnect method of the virtual table. This function attempts to 
+** allocate an instance of Fts5Config containing the results of parsing
+** those arguments.
+**
+** If successful, SQLITE_OK is returned and *ppOut is set to point to the
+** new Fts5Config object. If an error occurs, an SQLite error code is 
+** returned, *ppOut is set to NULL and an error message may be left in
+** *pzErr. It is the responsibility of the caller to eventually free any 
+** such error message using sqlite3_free().
+*/
+int sqlite3Fts5ConfigParse(
+  Fts5Global *pGlobal,
+  sqlite3 *db,
+  int nArg,                       /* Number of arguments */
+  const char **azArg,             /* Array of nArg CREATE VIRTUAL TABLE args */
+  Fts5Config **ppOut,             /* OUT: Results of parse */
+  char **pzErr                    /* OUT: Error message */
+){
+  int rc = SQLITE_OK;             /* Return code */
+  Fts5Config *pRet;               /* New object to return */
+  int i;
+  sqlite3_int64 nByte;
+  int bUnindexed = 0;             /* True if there are one or more UNINDEXED */
+
+  *ppOut = pRet = (Fts5Config*)sqlite3_malloc(sizeof(Fts5Config));
+  if( pRet==0 ) return SQLITE_NOMEM;
+  memset(pRet, 0, sizeof(Fts5Config));
+  pRet->pGlobal = pGlobal;
+  pRet->db = db;
+  pRet->iCookie = -1;
+
+  nByte = nArg * (sizeof(char*) + sizeof(u8));
+  pRet->azCol = (char**)sqlite3Fts5MallocZero(&rc, nByte);
+  pRet->abUnindexed = pRet->azCol ? (u8*)&pRet->azCol[nArg] : 0;
+  pRet->zDb = sqlite3Fts5Strndup(&rc, azArg[1], -1);
+  pRet->zName = sqlite3Fts5Strndup(&rc, azArg[2], -1);
+  pRet->bColumnsize = 1;
+  pRet->eDetail = FTS5_DETAIL_FULL;
+#ifdef SQLITE_DEBUG
+  pRet->bPrefixIndex = 1;
+#endif
+  if( rc==SQLITE_OK && sqlite3_stricmp(pRet->zName, FTS5_RANK_NAME)==0 ){
+    *pzErr = sqlite3_mprintf("reserved fts5 table name: %s", pRet->zName);
+    rc = SQLITE_ERROR;
+  }
+
+  assert( (pRet->abUnindexed && pRet->azCol) || rc!=SQLITE_OK );
+  for(i=3; rc==SQLITE_OK && i<nArg; i++){
+    const char *zOrig = azArg[i];
+    const char *z;
+    char *zOne = 0;
+    char *zTwo = 0;
+    int bOption = 0;
+    int bMustBeCol = 0;
+
+    z = fts5ConfigGobbleWord(&rc, zOrig, &zOne, &bMustBeCol);
+    z = fts5ConfigSkipWhitespace(z);
+    if( z && *z=='=' ){
+      bOption = 1;
+      assert( zOne!=0 );
+      z++;
+      if( bMustBeCol ) z = 0;
+    }
+    z = fts5ConfigSkipWhitespace(z);
+    if( z && z[0] ){
+      int bDummy;
+      z = fts5ConfigGobbleWord(&rc, z, &zTwo, &bDummy);
+      if( z && z[0] ) z = 0;
+    }
+
+    if( rc==SQLITE_OK ){
+      if( z==0 ){
+        *pzErr = sqlite3_mprintf("parse error in \"%s\"", zOrig);
+        rc = SQLITE_ERROR;
+      }else{
+        if( bOption ){
+          rc = fts5ConfigParseSpecial(pRet, 
+            ALWAYS(zOne)?zOne:"",
+            zTwo?zTwo:"",
+            pzErr
+          );
+        }else{
+          rc = fts5ConfigParseColumn(pRet, zOne, zTwo, pzErr, &bUnindexed);
+          zOne = 0;
+        }
+      }
+    }
+
+    sqlite3_free(zOne);
+    sqlite3_free(zTwo);
+  }
+
+  /* We only allow contentless_delete=1 if the table is indeed contentless. */
+  if( rc==SQLITE_OK 
+   && pRet->bContentlessDelete 
+   && pRet->eContent!=FTS5_CONTENT_NONE 
+  ){
+    *pzErr = sqlite3_mprintf(
+        "contentless_delete=1 requires a contentless table"
+    );
+    rc = SQLITE_ERROR;
+  }
+
+  /* We only allow contentless_delete=1 if columnsize=0 is not present. 
+  **
+  ** This restriction may be removed at some point. 
+  */
+  if( rc==SQLITE_OK && pRet->bContentlessDelete && pRet->bColumnsize==0 ){
+    *pzErr = sqlite3_mprintf(
+        "contentless_delete=1 is incompatible with columnsize=0"
+    );
+    rc = SQLITE_ERROR;
+  }
+
+  /* We only allow contentless_unindexed=1 if the table is actually a
+  ** contentless one.
+  */
+  if( rc==SQLITE_OK 
+   && pRet->bContentlessUnindexed 
+   && pRet->eContent!=FTS5_CONTENT_NONE
+  ){
+    *pzErr = sqlite3_mprintf(
+        "contentless_unindexed=1 requires a contentless table"
+    );
+    rc = SQLITE_ERROR;
+  }
+
+  /* If no zContent option was specified, fill in the default values. */
+  if( rc==SQLITE_OK && pRet->zContent==0 ){
+    const char *zTail = 0;
+    assert( pRet->eContent==FTS5_CONTENT_NORMAL
+         || pRet->eContent==FTS5_CONTENT_NONE
+    );
+    if( pRet->eContent==FTS5_CONTENT_NORMAL ){
+      zTail = "content";
+    }else if( bUnindexed && pRet->bContentlessUnindexed ){
+      pRet->eContent = FTS5_CONTENT_UNINDEXED;
+      zTail = "content";
+    }else if( pRet->bColumnsize ){
+      zTail = "docsize";
+    }
+
+    if( zTail ){
+      pRet->zContent = sqlite3Fts5Mprintf(
+          &rc, "%Q.'%q_%s'", pRet->zDb, pRet->zName, zTail
+      );
+    }
+  }
+
+  if( rc==SQLITE_OK && pRet->zContentRowid==0 ){
+    pRet->zContentRowid = sqlite3Fts5Strndup(&rc, "rowid", -1);
+  }
+
+  /* Formulate the zContentExprlist text */
+  if( rc==SQLITE_OK ){
+    rc = fts5ConfigMakeExprlist(pRet);
+  }
+
+  if( rc!=SQLITE_OK ){
+    sqlite3Fts5ConfigFree(pRet);
+    *ppOut = 0;
+  }
+  return rc;
+}
+
+/*
+** Free the configuration object passed as the only argument.
+*/
+void sqlite3Fts5ConfigFree(Fts5Config *pConfig){
+  if( pConfig ){
+    int i;
+    if( pConfig->t.pTok ){
+      if( pConfig->t.pApi1 ){
+        pConfig->t.pApi1->xDelete(pConfig->t.pTok);
+      }else{
+        pConfig->t.pApi2->xDelete(pConfig->t.pTok);
+      }
+    }
+    sqlite3_free((char*)pConfig->t.azArg);
+    sqlite3_free(pConfig->zDb);
+    sqlite3_free(pConfig->zName);
+    for(i=0; i<pConfig->nCol; i++){
+      sqlite3_free(pConfig->azCol[i]);
+    }
+    sqlite3_free(pConfig->azCol);
+    sqlite3_free(pConfig->aPrefix);
+    sqlite3_free(pConfig->zRank);
+    sqlite3_free(pConfig->zRankArgs);
+    sqlite3_free(pConfig->zContent);
+    sqlite3_free(pConfig->zContentRowid);
+    sqlite3_free(pConfig->zContentExprlist);
+    sqlite3_free(pConfig);
+  }
+}
+
+/*
+** Call sqlite3_declare_vtab() based on the contents of the configuration
+** object passed as the only argument. Return SQLITE_OK if successful, or
+** an SQLite error code if an error occurs.
+*/
+int sqlite3Fts5ConfigDeclareVtab(Fts5Config *pConfig){
+  int i;
+  int rc = SQLITE_OK;
+  char *zSql;
+
+  zSql = sqlite3Fts5Mprintf(&rc, "CREATE TABLE x(");
+  for(i=0; zSql && i<pConfig->nCol; i++){
+    const char *zSep = (i==0?"":", ");
+    zSql = sqlite3Fts5Mprintf(&rc, "%z%s%Q", zSql, zSep, pConfig->azCol[i]);
+  }
+  zSql = sqlite3Fts5Mprintf(&rc, "%z, %Q HIDDEN, %s HIDDEN)", 
+      zSql, pConfig->zName, FTS5_RANK_NAME
+  );
+
+  assert( zSql || rc==SQLITE_NOMEM );
+  if( zSql ){
+    rc = sqlite3_declare_vtab(pConfig->db, zSql);
+    sqlite3_free(zSql);
+  }
+ 
+  return rc;
+}
+
+/*
+** Tokenize the text passed via the second and third arguments.
+**
+** The callback is invoked once for each token in the input text. The
+** arguments passed to it are, in order:
+**
+**     void *pCtx          // Copy of 4th argument to sqlite3Fts5Tokenize()
+**     const char *pToken  // Pointer to buffer containing token
+**     int nToken          // Size of token in bytes
+**     int iStart          // Byte offset of start of token within input text
+**     int iEnd            // Byte offset of end of token within input text
+**     int iPos            // Position of token in input (first token is 0)
+**
+** If the callback returns a non-zero value the tokenization is abandoned
+** and no further callbacks are issued. 
+**
+** This function returns SQLITE_OK if successful or an SQLite error code
+** if an error occurs. If the tokenization was abandoned early because
+** the callback returned SQLITE_DONE, this is not an error and this function
+** still returns SQLITE_OK. Or, if the tokenization was abandoned early
+** because the callback returned another non-zero value, it is assumed
+** to be an SQLite error code and returned to the caller.
+*/
+int sqlite3Fts5Tokenize(
+  Fts5Config *pConfig,            /* FTS5 Configuration object */
+  int flags,                      /* FTS5_TOKENIZE_* flags */
+  const char *pText, int nText,   /* Text to tokenize */
+  void *pCtx,                     /* Context passed to xToken() */
+  int (*xToken)(void*, int, const char*, int, int, int)    /* Callback */
+){
+  int rc = SQLITE_OK;
+  if( pText ){
+    if( pConfig->t.pTok==0 ){
+      rc = sqlite3Fts5LoadTokenizer(pConfig);
+    }
+    if( rc==SQLITE_OK ){
+      if( pConfig->t.pApi1 ){
+        rc = pConfig->t.pApi1->xTokenize(
+            pConfig->t.pTok, pCtx, flags, pText, nText, xToken
+        );
+      }else{
+        rc = pConfig->t.pApi2->xTokenize(pConfig->t.pTok, pCtx, flags, 
+            pText, nText, pConfig->t.pLocale, pConfig->t.nLocale, xToken
+        );
+      }
+    }
+  }
+  return rc;
+}
+
+/*
+** Argument pIn points to the first character in what is expected to be
+** a comma-separated list of SQL literals followed by a ')' character.
+** If it actually is this, return a pointer to the ')'. Otherwise, return
+** NULL to indicate a parse error.
+*/
+static const char *fts5ConfigSkipArgs(const char *pIn){
+  const char *p = pIn;
+  
+  while( 1 ){
+    p = fts5ConfigSkipWhitespace(p);
+    p = fts5ConfigSkipLiteral(p);
+    p = fts5ConfigSkipWhitespace(p);
+    if( p==0 || *p==')' ) break;
+    if( *p!=',' ){
+      p = 0;
+      break;
+    }
+    p++;
+  }
+
+  return p;
+}
+
+/*
+** Parameter zIn contains a rank() function specification. The format of 
+** this is:
+**
+**   + Bareword (function name)
+**   + Open parenthesis - "("
+**   + Zero or more SQL literals in a comma separated list
+**   + Close parenthesis - ")"
+*/
+int sqlite3Fts5ConfigParseRank(
+  const char *zIn,                /* Input string */
+  char **pzRank,                  /* OUT: Rank function name */
+  char **pzRankArgs               /* OUT: Rank function arguments */
+){
+  const char *p = zIn;
+  const char *pRank;
+  char *zRank = 0;
+  char *zRankArgs = 0;
+  int rc = SQLITE_OK;
+
+  *pzRank = 0;
+  *pzRankArgs = 0;
+
+  if( p==0 ){
+    rc = SQLITE_ERROR;
+  }else{
+    p = fts5ConfigSkipWhitespace(p);
+    pRank = p;
+    p = fts5ConfigSkipBareword(p);
+
+    if( p ){
+      zRank = sqlite3Fts5MallocZero(&rc, 1 + p - pRank);
+      if( zRank ) memcpy(zRank, pRank, p-pRank);
+    }else{
+      rc = SQLITE_ERROR;
+    }
+
+    if( rc==SQLITE_OK ){
+      p = fts5ConfigSkipWhitespace(p);
+      if( *p!='(' ) rc = SQLITE_ERROR;
+      p++;
+    }
+    if( rc==SQLITE_OK ){
+      const char *pArgs; 
+      p = fts5ConfigSkipWhitespace(p);
+      pArgs = p;
+      if( *p!=')' ){
+        p = fts5ConfigSkipArgs(p);
+        if( p==0 ){
+          rc = SQLITE_ERROR;
+        }else{
+          zRankArgs = sqlite3Fts5MallocZero(&rc, 1 + p - pArgs);
+          if( zRankArgs ) memcpy(zRankArgs, pArgs, p-pArgs);
+        }
+      }
+    }
+  }
+
+  if( rc!=SQLITE_OK ){
+    sqlite3_free(zRank);
+    assert( zRankArgs==0 );
+  }else{
+    *pzRank = zRank;
+    *pzRankArgs = zRankArgs;
+  }
+  return rc;
+}
+
+int sqlite3Fts5ConfigSetValue(
+  Fts5Config *pConfig, 
+  const char *zKey, 
+  sqlite3_value *pVal,
+  int *pbBadkey
+){
+  int rc = SQLITE_OK;
+
+  if( 0==sqlite3_stricmp(zKey, "pgsz") ){
+    int pgsz = 0;
+    if( SQLITE_INTEGER==sqlite3_value_numeric_type(pVal) ){
+      pgsz = sqlite3_value_int(pVal);
+    }
+    if( pgsz<32 || pgsz>FTS5_MAX_PAGE_SIZE ){
+      *pbBadkey = 1;
+    }else{
+      pConfig->pgsz = pgsz;
+    }
+  }
+
+  else if( 0==sqlite3_stricmp(zKey, "hashsize") ){
+    int nHashSize = -1;
+    if( SQLITE_INTEGER==sqlite3_value_numeric_type(pVal) ){
+      nHashSize = sqlite3_value_int(pVal);
+    }
+    if( nHashSize<=0 ){
+      *pbBadkey = 1;
+    }else{
+      pConfig->nHashSize = nHashSize;
+    }
+  }
+
+  else if( 0==sqlite3_stricmp(zKey, "automerge") ){
+    int nAutomerge = -1;
+    if( SQLITE_INTEGER==sqlite3_value_numeric_type(pVal) ){
+      nAutomerge = sqlite3_value_int(pVal);
+    }
+    if( nAutomerge<0 || nAutomerge>64 ){
+      *pbBadkey = 1;
+    }else{
+      if( nAutomerge==1 ) nAutomerge = FTS5_DEFAULT_AUTOMERGE;
+      pConfig->nAutomerge = nAutomerge;
+    }
+  }
+
+  else if( 0==sqlite3_stricmp(zKey, "usermerge") ){
+    int nUsermerge = -1;
+    if( SQLITE_INTEGER==sqlite3_value_numeric_type(pVal) ){
+      nUsermerge = sqlite3_value_int(pVal);
+    }
+    if( nUsermerge<2 || nUsermerge>16 ){
+      *pbBadkey = 1;
+    }else{
+      pConfig->nUsermerge = nUsermerge;
+    }
+  }
+
+  else if( 0==sqlite3_stricmp(zKey, "crisismerge") ){
+    int nCrisisMerge = -1;
+    if( SQLITE_INTEGER==sqlite3_value_numeric_type(pVal) ){
+      nCrisisMerge = sqlite3_value_int(pVal);
+    }
+    if( nCrisisMerge<0 ){
+      *pbBadkey = 1;
+    }else{
+      if( nCrisisMerge<=1 ) nCrisisMerge = FTS5_DEFAULT_CRISISMERGE;
+      if( nCrisisMerge>=FTS5_MAX_SEGMENT ) nCrisisMerge = FTS5_MAX_SEGMENT-1;
+      pConfig->nCrisisMerge = nCrisisMerge;
+    }
+  }
+
+  else if( 0==sqlite3_stricmp(zKey, "deletemerge") ){
+    int nVal = -1;
+    if( SQLITE_INTEGER==sqlite3_value_numeric_type(pVal) ){
+      nVal = sqlite3_value_int(pVal);
+    }else{
+      *pbBadkey = 1;
+    }
+    if( nVal<0 ) nVal = FTS5_DEFAULT_DELETE_AUTOMERGE;
+    if( nVal>100 ) nVal = 0;
+    pConfig->nDeleteMerge = nVal;
+  }
+
+  else if( 0==sqlite3_stricmp(zKey, "rank") ){
+    const char *zIn = (const char*)sqlite3_value_text(pVal);
+    char *zRank;
+    char *zRankArgs;
+    rc = sqlite3Fts5ConfigParseRank(zIn, &zRank, &zRankArgs);
+    if( rc==SQLITE_OK ){
+      sqlite3_free(pConfig->zRank);
+      sqlite3_free(pConfig->zRankArgs);
+      pConfig->zRank = zRank;
+      pConfig->zRankArgs = zRankArgs;
+    }else if( rc==SQLITE_ERROR ){
+      rc = SQLITE_OK;
+      *pbBadkey = 1;
+    }
+  }
+
+  else if( 0==sqlite3_stricmp(zKey, "secure-delete") ){
+    int bVal = -1;
+    if( SQLITE_INTEGER==sqlite3_value_numeric_type(pVal) ){
+      bVal = sqlite3_value_int(pVal);
+    }
+    if( bVal<0 ){
+      *pbBadkey = 1;
+    }else{
+      pConfig->bSecureDelete = (bVal ? 1 : 0);
+    }
+  }
+
+  else if( 0==sqlite3_stricmp(zKey, "insttoken") ){
+    int bVal = -1;
+    if( SQLITE_INTEGER==sqlite3_value_numeric_type(pVal) ){
+      bVal = sqlite3_value_int(pVal);
+    }
+    if( bVal<0 ){
+      *pbBadkey = 1;
+    }else{
+      pConfig->bPrefixInsttoken = (bVal ? 1 : 0);
+    }
+
+  }else{
+    *pbBadkey = 1;
+  }
+  return rc;
+}
+
+/*
+** Load the contents of the %_config table into memory.
+*/
+int sqlite3Fts5ConfigLoad(Fts5Config *pConfig, int iCookie){
+  const char *zSelect = "SELECT k, v FROM %Q.'%q_config'";
+  char *zSql;
+  sqlite3_stmt *p = 0;
+  int rc = SQLITE_OK;
+  int iVersion = 0;
+
+  /* Set default values */
+  pConfig->pgsz = FTS5_DEFAULT_PAGE_SIZE;
+  pConfig->nAutomerge = FTS5_DEFAULT_AUTOMERGE;
+  pConfig->nUsermerge = FTS5_DEFAULT_USERMERGE;
+  pConfig->nCrisisMerge = FTS5_DEFAULT_CRISISMERGE;
+  pConfig->nHashSize = FTS5_DEFAULT_HASHSIZE;
+  pConfig->nDeleteMerge = FTS5_DEFAULT_DELETE_AUTOMERGE;
+
+  zSql = sqlite3Fts5Mprintf(&rc, zSelect, pConfig->zDb, pConfig->zName);
+  if( zSql ){
+    rc = sqlite3_prepare_v2(pConfig->db, zSql, -1, &p, 0);
+    sqlite3_free(zSql);
+  }
+
+  assert( rc==SQLITE_OK || p==0 );
+  if( rc==SQLITE_OK ){
+    while( SQLITE_ROW==sqlite3_step(p) ){
+      const char *zK = (const char*)sqlite3_column_text(p, 0);
+      sqlite3_value *pVal = sqlite3_column_value(p, 1);
+      if( 0==sqlite3_stricmp(zK, "version") ){
+        iVersion = sqlite3_value_int(pVal);
+      }else{
+        int bDummy = 0;
+        sqlite3Fts5ConfigSetValue(pConfig, zK, pVal, &bDummy);
+      }
+    }
+    rc = sqlite3_finalize(p);
+  }
+  
+  if( rc==SQLITE_OK 
+   && iVersion!=FTS5_CURRENT_VERSION
+   && iVersion!=FTS5_CURRENT_VERSION_SECUREDELETE
+  ){
+    rc = SQLITE_ERROR;
+    sqlite3Fts5ConfigErrmsg(pConfig, "invalid fts5 file format "
+        "(found %d, expected %d or %d) - run 'rebuild'",
+        iVersion, FTS5_CURRENT_VERSION, FTS5_CURRENT_VERSION_SECUREDELETE
+    );
+  }else{
+    pConfig->iVersion = iVersion;
+  }
+
+  if( rc==SQLITE_OK ){
+    pConfig->iCookie = iCookie;
+  }
+  return rc;
+}
+
+/*
+** Set (*pConfig->pzErrmsg) to point to an sqlite3_malloc()ed buffer 
+** containing the error message created using printf() style formatting
+** string zFmt and its trailing arguments.
+*/
+void sqlite3Fts5ConfigErrmsg(Fts5Config *pConfig, const char *zFmt, ...){
+  va_list ap;                     /* ... printf arguments */
+  char *zMsg = 0;
+
+  va_start(ap, zFmt);
+  zMsg = sqlite3_vmprintf(zFmt, ap);
+  if( pConfig->pzErrmsg ){
+    assert( *pConfig->pzErrmsg==0 );
+    *pConfig->pzErrmsg = zMsg;
+  }else{
+    sqlite3_free(zMsg);
+  }
+
+  va_end(ap);
+}
+
+
diff --git a/ext/fts5/fts5_expr.c b/ext/fts5/fts5_expr.c
new file mode 100644
index 0000000000000000000000000000000000000000..877c3f79c531f79886fff0fe4ba0a31a81bf3ed3
--- /dev/null
+++ b/ext/fts5/fts5_expr.c
@@ -0,0 +1,3266 @@
+/*
+** 2014 May 31
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+*/
+
+
+
+#include "fts5Int.h"
+#include "fts5parse.h"
+
+#ifndef SQLITE_FTS5_MAX_EXPR_DEPTH
+# define SQLITE_FTS5_MAX_EXPR_DEPTH 256
+#endif
+
+/*
+** All token types in the generated fts5parse.h file are greater than 0.
+*/
+#define FTS5_EOF 0
+
+#define FTS5_LARGEST_INT64  (0xffffffff|(((i64)0x7fffffff)<<32))
+
+typedef struct Fts5ExprTerm Fts5ExprTerm;
+
+/*
+** Functions generated by lemon from fts5parse.y.
+*/
+void *sqlite3Fts5ParserAlloc(void *(*mallocProc)(u64));
+void sqlite3Fts5ParserFree(void*, void (*freeProc)(void*));
+void sqlite3Fts5Parser(void*, int, Fts5Token, Fts5Parse*);
+#ifndef NDEBUG
+#include <stdio.h>
+void sqlite3Fts5ParserTrace(FILE*, char*);
+#endif
+int sqlite3Fts5ParserFallback(int);
+
+
+struct Fts5Expr {
+  Fts5Index *pIndex;
+  Fts5Config *pConfig;
+  Fts5ExprNode *pRoot;
+  int bDesc;                      /* Iterate in descending rowid order */
+  int nPhrase;                    /* Number of phrases in expression */
+  Fts5ExprPhrase **apExprPhrase;  /* Pointers to phrase objects */
+};
+
+/*
+** eType:
+**   Expression node type. Usually one of:
+**
+**       FTS5_AND                 (nChild, apChild valid)
+**       FTS5_OR                  (nChild, apChild valid)
+**       FTS5_NOT                 (nChild, apChild valid)
+**       FTS5_STRING              (pNear valid)
+**       FTS5_TERM                (pNear valid)
+**
+**   An expression node with eType==0 may also exist. It always matches zero
+**   rows. This is created when a phrase containing no tokens is parsed.
+**   e.g. "".
+**
+** iHeight:
+**   Distance from this node to furthest leaf. This is always 0 for nodes
+**   of type FTS5_STRING and FTS5_TERM. For all other nodes it is one 
+**   greater than the largest child value.
+*/
+struct Fts5ExprNode {
+  int eType;                      /* Node type */
+  int bEof;                       /* True at EOF */
+  int bNomatch;                   /* True if entry is not a match */
+  int iHeight;                    /* Distance to tree leaf nodes */
+
+  /* Next method for this node. */
+  int (*xNext)(Fts5Expr*, Fts5ExprNode*, int, i64);
+
+  i64 iRowid;                     /* Current rowid */
+  Fts5ExprNearset *pNear;         /* For FTS5_STRING - cluster of phrases */
+
+  /* Child nodes. For a NOT node, this array always contains 2 entries. For 
+  ** AND or OR nodes, it contains 2 or more entries.  */
+  int nChild;                     /* Number of child nodes */
+  Fts5ExprNode *apChild[1];       /* Array of child nodes */
+};
+
+#define Fts5NodeIsString(p) ((p)->eType==FTS5_TERM || (p)->eType==FTS5_STRING)
+
+/*
+** Invoke the xNext method of an Fts5ExprNode object. This macro should be
+** used as if it has the same signature as the xNext() methods themselves.
+*/
+#define fts5ExprNodeNext(a,b,c,d) (b)->xNext((a), (b), (c), (d))
+
+/*
+** An instance of the following structure represents a single search term
+** or term prefix.
+*/
+struct Fts5ExprTerm {
+  u8 bPrefix;                     /* True for a prefix term */
+  u8 bFirst;                      /* True if token must be first in column */
+  char *pTerm;                    /* Term data */
+  int nQueryTerm;                 /* Effective size of term in bytes */
+  int nFullTerm;                  /* Size of term in bytes incl. tokendata */
+  Fts5IndexIter *pIter;           /* Iterator for this term */
+  Fts5ExprTerm *pSynonym;         /* Pointer to first in list of synonyms */
+};
+
+/*
+** A phrase. One or more terms that must appear in a contiguous sequence
+** within a document for it to match.
+*/
+struct Fts5ExprPhrase {
+  Fts5ExprNode *pNode;            /* FTS5_STRING node this phrase is part of */
+  Fts5Buffer poslist;             /* Current position list */
+  int nTerm;                      /* Number of entries in aTerm[] */
+  Fts5ExprTerm aTerm[1];          /* Terms that make up this phrase */
+};
+
+/*
+** One or more phrases that must appear within a certain token distance of
+** each other within each matching document.
+*/
+struct Fts5ExprNearset {
+  int nNear;                      /* NEAR parameter */
+  Fts5Colset *pColset;            /* Columns to search (NULL -> all columns) */
+  int nPhrase;                    /* Number of entries in aPhrase[] array */
+  Fts5ExprPhrase *apPhrase[1];    /* Array of phrase pointers */
+};
+
+
+/*
+** Parse context.
+*/
+struct Fts5Parse {
+  Fts5Config *pConfig;
+  char *zErr;
+  int rc;
+  int nPhrase;                    /* Size of apPhrase array */
+  Fts5ExprPhrase **apPhrase;      /* Array of all phrases */
+  Fts5ExprNode *pExpr;            /* Result of a successful parse */
+  int bPhraseToAnd;               /* Convert "a+b" to "a AND b" */
+};
+
+/*
+** Check that the Fts5ExprNode.iHeight variables are set correctly in
+** the expression tree passed as the only argument.
+*/
+#ifndef NDEBUG
+static void assert_expr_depth_ok(int rc, Fts5ExprNode *p){
+  if( rc==SQLITE_OK ){
+    if( p->eType==FTS5_TERM || p->eType==FTS5_STRING || p->eType==0 ){
+      assert( p->iHeight==0 );
+    }else{
+      int ii;
+      int iMaxChild = 0;
+      for(ii=0; ii<p->nChild; ii++){
+        Fts5ExprNode *pChild = p->apChild[ii];
+        iMaxChild = MAX(iMaxChild, pChild->iHeight);
+        assert_expr_depth_ok(SQLITE_OK, pChild);
+      }
+      assert( p->iHeight==iMaxChild+1 );
+    }
+  }
+}
+#else
+# define assert_expr_depth_ok(rc, p)
+#endif
+
+void sqlite3Fts5ParseError(Fts5Parse *pParse, const char *zFmt, ...){
+  va_list ap;
+  va_start(ap, zFmt);
+  if( pParse->rc==SQLITE_OK ){
+    assert( pParse->zErr==0 );
+    pParse->zErr = sqlite3_vmprintf(zFmt, ap);
+    pParse->rc = SQLITE_ERROR;
+  }
+  va_end(ap);
+}
+
+static int fts5ExprIsspace(char t){
+  return t==' ' || t=='\t' || t=='\n' || t=='\r';
+}
+
+/*
+** Read the first token from the nul-terminated string at *pz.
+*/
+static int fts5ExprGetToken(
+  Fts5Parse *pParse, 
+  const char **pz,                /* IN/OUT: Pointer into buffer */
+  Fts5Token *pToken
+){
+  const char *z = *pz;
+  int tok;
+
+  /* Skip past any whitespace */
+  while( fts5ExprIsspace(*z) ) z++;
+
+  pToken->p = z;
+  pToken->n = 1;
+  switch( *z ){
+    case '(':  tok = FTS5_LP;    break;
+    case ')':  tok = FTS5_RP;    break;
+    case '{':  tok = FTS5_LCP;   break;
+    case '}':  tok = FTS5_RCP;   break;
+    case ':':  tok = FTS5_COLON; break;
+    case ',':  tok = FTS5_COMMA; break;
+    case '+':  tok = FTS5_PLUS;  break;
+    case '*':  tok = FTS5_STAR;  break;
+    case '-':  tok = FTS5_MINUS; break;
+    case '^':  tok = FTS5_CARET; break;
+    case '\0': tok = FTS5_EOF;   break;
+
+    case '"': {
+      const char *z2;
+      tok = FTS5_STRING;
+
+      for(z2=&z[1]; 1; z2++){
+        if( z2[0]=='"' ){
+          z2++;
+          if( z2[0]!='"' ) break;
+        }
+        if( z2[0]=='\0' ){
+          sqlite3Fts5ParseError(pParse, "unterminated string");
+          return FTS5_EOF;
+        }
+      }
+      pToken->n = (z2 - z);
+      break;
+    }
+
+    default: {
+      const char *z2;
+      if( sqlite3Fts5IsBareword(z[0])==0 ){
+        sqlite3Fts5ParseError(pParse, "fts5: syntax error near \"%.1s\"", z);
+        return FTS5_EOF;
+      }
+      tok = FTS5_STRING;
+      for(z2=&z[1]; sqlite3Fts5IsBareword(*z2); z2++);
+      pToken->n = (z2 - z);
+      if( pToken->n==2 && memcmp(pToken->p, "OR", 2)==0 )  tok = FTS5_OR;
+      if( pToken->n==3 && memcmp(pToken->p, "NOT", 3)==0 ) tok = FTS5_NOT;
+      if( pToken->n==3 && memcmp(pToken->p, "AND", 3)==0 ) tok = FTS5_AND;
+      break;
+    }
+  }
+
+  *pz = &pToken->p[pToken->n];
+  return tok;
+}
+
+static void *fts5ParseAlloc(u64 t){ return sqlite3_malloc64((sqlite3_int64)t);}
+static void fts5ParseFree(void *p){ sqlite3_free(p); }
+
+int sqlite3Fts5ExprNew(
+  Fts5Config *pConfig,            /* FTS5 Configuration */
+  int bPhraseToAnd,
+  int iCol,
+  const char *zExpr,              /* Expression text */
+  Fts5Expr **ppNew, 
+  char **pzErr
+){
+  Fts5Parse sParse;
+  Fts5Token token;
+  const char *z = zExpr;
+  int t;                          /* Next token type */
+  void *pEngine;
+  Fts5Expr *pNew;
+
+  *ppNew = 0;
+  *pzErr = 0;
+  memset(&sParse, 0, sizeof(sParse));
+  sParse.bPhraseToAnd = bPhraseToAnd;
+  pEngine = sqlite3Fts5ParserAlloc(fts5ParseAlloc);
+  if( pEngine==0 ){ return SQLITE_NOMEM; }
+  sParse.pConfig = pConfig;
+
+  do {
+    t = fts5ExprGetToken(&sParse, &z, &token);
+    sqlite3Fts5Parser(pEngine, t, token, &sParse);
+  }while( sParse.rc==SQLITE_OK && t!=FTS5_EOF );
+  sqlite3Fts5ParserFree(pEngine, fts5ParseFree);
+
+  assert( sParse.pExpr || sParse.rc!=SQLITE_OK );
+  assert_expr_depth_ok(sParse.rc, sParse.pExpr);
+
+  /* If the LHS of the MATCH expression was a user column, apply the
+  ** implicit column-filter.  */
+  if( sParse.rc==SQLITE_OK && iCol<pConfig->nCol ){
+    int n = sizeof(Fts5Colset);
+    Fts5Colset *pColset = (Fts5Colset*)sqlite3Fts5MallocZero(&sParse.rc, n);
+    if( pColset ){
+      pColset->nCol = 1;
+      pColset->aiCol[0] = iCol;
+      sqlite3Fts5ParseSetColset(&sParse, sParse.pExpr, pColset);
+    }
+  }
+
+  assert( sParse.rc!=SQLITE_OK || sParse.zErr==0 );
+  if( sParse.rc==SQLITE_OK ){
+    *ppNew = pNew = sqlite3_malloc(sizeof(Fts5Expr));
+    if( pNew==0 ){
+      sParse.rc = SQLITE_NOMEM;
+      sqlite3Fts5ParseNodeFree(sParse.pExpr);
+    }else{
+      pNew->pRoot = sParse.pExpr;
+      pNew->pIndex = 0;
+      pNew->pConfig = pConfig;
+      pNew->apExprPhrase = sParse.apPhrase;
+      pNew->nPhrase = sParse.nPhrase;
+      pNew->bDesc = 0;
+      sParse.apPhrase = 0;
+    }
+  }else{
+    sqlite3Fts5ParseNodeFree(sParse.pExpr);
+  }
+
+  sqlite3_free(sParse.apPhrase);
+  if( 0==*pzErr ){
+    *pzErr = sParse.zErr;
+  }else{
+    sqlite3_free(sParse.zErr);
+  }
+  return sParse.rc;
+}
+
+/*
+** Assuming that buffer z is at least nByte bytes in size and contains a
+** valid utf-8 string, return the number of characters in the string.
+*/
+static int fts5ExprCountChar(const char *z, int nByte){
+  int nRet = 0;
+  int ii;
+  for(ii=0; ii<nByte; ii++){
+    if( (z[ii] & 0xC0)!=0x80 ) nRet++;
+  }
+  return nRet;
+}
+
+/*
+** This function is only called when using the special 'trigram' tokenizer.
+** Argument zText contains the text of a LIKE or GLOB pattern matched
+** against column iCol. This function creates and compiles an FTS5 MATCH
+** expression that will match a superset of the rows matched by the LIKE or
+** GLOB. If successful, SQLITE_OK is returned. Otherwise, an SQLite error
+** code.
+*/
+int sqlite3Fts5ExprPattern(
+  Fts5Config *pConfig, int bGlob, int iCol, const char *zText, Fts5Expr **pp
+){
+  i64 nText = strlen(zText);
+  char *zExpr = (char*)sqlite3_malloc64(nText*4 + 1);
+  int rc = SQLITE_OK;
+
+  if( zExpr==0 ){
+    rc = SQLITE_NOMEM;
+  }else{
+    char aSpec[3];
+    int iOut = 0;
+    int i = 0;
+    int iFirst = 0;
+
+    if( bGlob==0 ){
+      aSpec[0] = '_';
+      aSpec[1] = '%';
+      aSpec[2] = 0;
+    }else{
+      aSpec[0] = '*';
+      aSpec[1] = '?';
+      aSpec[2] = '[';
+    }
+
+    while( i<=nText ){
+      if( i==nText 
+       || zText[i]==aSpec[0] || zText[i]==aSpec[1] || zText[i]==aSpec[2] 
+      ){
+
+        if( fts5ExprCountChar(&zText[iFirst], i-iFirst)>=3 ){
+          int jj;
+          zExpr[iOut++] = '"';
+          for(jj=iFirst; jj<i; jj++){
+            zExpr[iOut++] = zText[jj];
+            if( zText[jj]=='"' ) zExpr[iOut++] = '"';
+          }
+          zExpr[iOut++] = '"';
+          zExpr[iOut++] = ' ';
+        }
+        if( zText[i]==aSpec[2] ){
+          i += 2;
+          if( zText[i-1]=='^' ) i++;
+          while( i<nText && zText[i]!=']' ) i++;
+        }
+        iFirst = i+1;
+      }
+      i++;
+    }
+    if( iOut>0 ){
+      int bAnd = 0;
+      if( pConfig->eDetail!=FTS5_DETAIL_FULL ){
+        bAnd = 1;
+        if( pConfig->eDetail==FTS5_DETAIL_NONE ){
+          iCol = pConfig->nCol;
+        }
+      }
+      zExpr[iOut] = '\0';
+      rc = sqlite3Fts5ExprNew(pConfig, bAnd, iCol, zExpr, pp,pConfig->pzErrmsg);
+    }else{
+      *pp = 0;
+    }
+    sqlite3_free(zExpr);
+  }
+
+  return rc;
+}
+
+/*
+** Free the expression node object passed as the only argument.
+*/
+void sqlite3Fts5ParseNodeFree(Fts5ExprNode *p){
+  if( p ){
+    int i;
+    for(i=0; i<p->nChild; i++){
+      sqlite3Fts5ParseNodeFree(p->apChild[i]);
+    }
+    sqlite3Fts5ParseNearsetFree(p->pNear);
+    sqlite3_free(p);
+  }
+}
+
+/*
+** Free the expression object passed as the only argument.
+*/
+void sqlite3Fts5ExprFree(Fts5Expr *p){
+  if( p ){
+    sqlite3Fts5ParseNodeFree(p->pRoot);
+    sqlite3_free(p->apExprPhrase);
+    sqlite3_free(p);
+  }
+}
+
+int sqlite3Fts5ExprAnd(Fts5Expr **pp1, Fts5Expr *p2){
+  Fts5Parse sParse;
+  memset(&sParse, 0, sizeof(sParse));
+
+  if( *pp1 && p2 ){
+    Fts5Expr *p1 = *pp1;
+    int nPhrase = p1->nPhrase + p2->nPhrase;
+
+    p1->pRoot = sqlite3Fts5ParseNode(&sParse, FTS5_AND, p1->pRoot, p2->pRoot,0);
+    p2->pRoot = 0;
+
+    if( sParse.rc==SQLITE_OK ){
+      Fts5ExprPhrase **ap = (Fts5ExprPhrase**)sqlite3_realloc(
+          p1->apExprPhrase, nPhrase * sizeof(Fts5ExprPhrase*)
+      );
+      if( ap==0 ){
+        sParse.rc = SQLITE_NOMEM;
+      }else{
+        int i;
+        memmove(&ap[p2->nPhrase], ap, p1->nPhrase*sizeof(Fts5ExprPhrase*));
+        for(i=0; i<p2->nPhrase; i++){
+          ap[i] = p2->apExprPhrase[i];
+        }
+        p1->nPhrase = nPhrase;
+        p1->apExprPhrase = ap;
+      }
+    }
+    sqlite3_free(p2->apExprPhrase);
+    sqlite3_free(p2);
+  }else if( p2 ){
+    *pp1 = p2;
+  }
+
+  return sParse.rc;
+}
+
+/*
+** Argument pTerm must be a synonym iterator. Return the current rowid
+** that it points to.
+*/
+static i64 fts5ExprSynonymRowid(Fts5ExprTerm *pTerm, int bDesc, int *pbEof){
+  i64 iRet = 0;
+  int bRetValid = 0;
+  Fts5ExprTerm *p;
+
+  assert( pTerm );
+  assert( pTerm->pSynonym );
+  assert( bDesc==0 || bDesc==1 );
+  for(p=pTerm; p; p=p->pSynonym){
+    if( 0==sqlite3Fts5IterEof(p->pIter) ){
+      i64 iRowid = p->pIter->iRowid;
+      if( bRetValid==0 || (bDesc!=(iRowid<iRet)) ){
+        iRet = iRowid;
+        bRetValid = 1;
+      }
+    }
+  }
+
+  if( pbEof && bRetValid==0 ) *pbEof = 1;
+  return iRet;
+}
+
+/*
+** Argument pTerm must be a synonym iterator.
+*/
+static int fts5ExprSynonymList(
+  Fts5ExprTerm *pTerm, 
+  i64 iRowid,
+  Fts5Buffer *pBuf,               /* Use this buffer for space if required */
+  u8 **pa, int *pn
+){
+  Fts5PoslistReader aStatic[4];
+  Fts5PoslistReader *aIter = aStatic;
+  int nIter = 0;
+  int nAlloc = 4;
+  int rc = SQLITE_OK;
+  Fts5ExprTerm *p;
+
+  assert( pTerm->pSynonym );
+  for(p=pTerm; p; p=p->pSynonym){
+    Fts5IndexIter *pIter = p->pIter;
+    if( sqlite3Fts5IterEof(pIter)==0 && pIter->iRowid==iRowid ){
+      if( pIter->nData==0 ) continue;
+      if( nIter==nAlloc ){
+        sqlite3_int64 nByte = sizeof(Fts5PoslistReader) * nAlloc * 2;
+        Fts5PoslistReader *aNew = (Fts5PoslistReader*)sqlite3_malloc64(nByte);
+        if( aNew==0 ){
+          rc = SQLITE_NOMEM;
+          goto synonym_poslist_out;
+        }
+        memcpy(aNew, aIter, sizeof(Fts5PoslistReader) * nIter);
+        nAlloc = nAlloc*2;
+        if( aIter!=aStatic ) sqlite3_free(aIter);
+        aIter = aNew;
+      }
+      sqlite3Fts5PoslistReaderInit(pIter->pData, pIter->nData, &aIter[nIter]);
+      assert( aIter[nIter].bEof==0 );
+      nIter++;
+    }
+  }
+
+  if( nIter==1 ){
+    *pa = (u8*)aIter[0].a;
+    *pn = aIter[0].n;
+  }else{
+    Fts5PoslistWriter writer = {0};
+    i64 iPrev = -1;
+    fts5BufferZero(pBuf);
+    while( 1 ){
+      int i;
+      i64 iMin = FTS5_LARGEST_INT64;
+      for(i=0; i<nIter; i++){
+        if( aIter[i].bEof==0 ){
+          if( aIter[i].iPos==iPrev ){
+            if( sqlite3Fts5PoslistReaderNext(&aIter[i]) ) continue;
+          }
+          if( aIter[i].iPos<iMin ){
+            iMin = aIter[i].iPos;
+          }
+        }
+      }
+      if( iMin==FTS5_LARGEST_INT64 || rc!=SQLITE_OK ) break;
+      rc = sqlite3Fts5PoslistWriterAppend(pBuf, &writer, iMin);
+      iPrev = iMin;
+    }
+    if( rc==SQLITE_OK ){
+      *pa = pBuf->p;
+      *pn = pBuf->n;
+    }
+  }
+
+ synonym_poslist_out:
+  if( aIter!=aStatic ) sqlite3_free(aIter);
+  return rc;
+}
+
+
+/*
+** All individual term iterators in pPhrase are guaranteed to be valid and
+** pointing to the same rowid when this function is called. This function 
+** checks if the current rowid really is a match, and if so populates
+** the pPhrase->poslist buffer accordingly. Output parameter *pbMatch
+** is set to true if this is really a match, or false otherwise.
+**
+** SQLITE_OK is returned if an error occurs, or an SQLite error code 
+** otherwise. It is not considered an error code if the current rowid is 
+** not a match.
+*/
+static int fts5ExprPhraseIsMatch(
+  Fts5ExprNode *pNode,            /* Node pPhrase belongs to */
+  Fts5ExprPhrase *pPhrase,        /* Phrase object to initialize */
+  int *pbMatch                    /* OUT: Set to true if really a match */
+){
+  Fts5PoslistWriter writer = {0};
+  Fts5PoslistReader aStatic[4];
+  Fts5PoslistReader *aIter = aStatic;
+  int i;
+  int rc = SQLITE_OK;
+  int bFirst = pPhrase->aTerm[0].bFirst;
+  
+  fts5BufferZero(&pPhrase->poslist);
+
+  /* If the aStatic[] array is not large enough, allocate a large array
+  ** using sqlite3_malloc(). This approach could be improved upon. */
+  if( pPhrase->nTerm>ArraySize(aStatic) ){
+    sqlite3_int64 nByte = sizeof(Fts5PoslistReader) * pPhrase->nTerm;
+    aIter = (Fts5PoslistReader*)sqlite3_malloc64(nByte);
+    if( !aIter ) return SQLITE_NOMEM;
+  }
+  memset(aIter, 0, sizeof(Fts5PoslistReader) * pPhrase->nTerm);
+
+  /* Initialize a term iterator for each term in the phrase */
+  for(i=0; i<pPhrase->nTerm; i++){
+    Fts5ExprTerm *pTerm = &pPhrase->aTerm[i];
+    int n = 0;
+    int bFlag = 0;
+    u8 *a = 0;
+    if( pTerm->pSynonym ){
+      Fts5Buffer buf = {0, 0, 0};
+      rc = fts5ExprSynonymList(pTerm, pNode->iRowid, &buf, &a, &n);
+      if( rc ){
+        sqlite3_free(a);
+        goto ismatch_out;
+      }
+      if( a==buf.p ) bFlag = 1;
+    }else{
+      a = (u8*)pTerm->pIter->pData;
+      n = pTerm->pIter->nData;
+    }
+    sqlite3Fts5PoslistReaderInit(a, n, &aIter[i]);
+    aIter[i].bFlag = (u8)bFlag;
+    if( aIter[i].bEof ) goto ismatch_out;
+  }
+
+  while( 1 ){
+    int bMatch;
+    i64 iPos = aIter[0].iPos;
+    do {
+      bMatch = 1;
+      for(i=0; i<pPhrase->nTerm; i++){
+        Fts5PoslistReader *pPos = &aIter[i];
+        i64 iAdj = iPos + i;
+        if( pPos->iPos!=iAdj ){
+          bMatch = 0;
+          while( pPos->iPos<iAdj ){
+            if( sqlite3Fts5PoslistReaderNext(pPos) ) goto ismatch_out;
+          }
+          if( pPos->iPos>iAdj ) iPos = pPos->iPos-i;
+        }
+      }
+    }while( bMatch==0 );
+
+    /* Append position iPos to the output */
+    if( bFirst==0 || FTS5_POS2OFFSET(iPos)==0 ){
+      rc = sqlite3Fts5PoslistWriterAppend(&pPhrase->poslist, &writer, iPos);
+      if( rc!=SQLITE_OK ) goto ismatch_out;
+    }
+
+    for(i=0; i<pPhrase->nTerm; i++){
+      if( sqlite3Fts5PoslistReaderNext(&aIter[i]) ) goto ismatch_out;
+    }
+  }
+
+ ismatch_out:
+  *pbMatch = (pPhrase->poslist.n>0);
+  for(i=0; i<pPhrase->nTerm; i++){
+    if( aIter[i].bFlag ) sqlite3_free((u8*)aIter[i].a);
+  }
+  if( aIter!=aStatic ) sqlite3_free(aIter);
+  return rc;
+}
+
+typedef struct Fts5LookaheadReader Fts5LookaheadReader;
+struct Fts5LookaheadReader {
+  const u8 *a;                    /* Buffer containing position list */
+  int n;                          /* Size of buffer a[] in bytes */
+  int i;                          /* Current offset in position list */
+  i64 iPos;                       /* Current position */
+  i64 iLookahead;                 /* Next position */
+};
+
+#define FTS5_LOOKAHEAD_EOF (((i64)1) << 62)
+
+static int fts5LookaheadReaderNext(Fts5LookaheadReader *p){
+  p->iPos = p->iLookahead;
+  if( sqlite3Fts5PoslistNext64(p->a, p->n, &p->i, &p->iLookahead) ){
+    p->iLookahead = FTS5_LOOKAHEAD_EOF;
+  }
+  return (p->iPos==FTS5_LOOKAHEAD_EOF);
+}
+
+static int fts5LookaheadReaderInit(
+  const u8 *a, int n,             /* Buffer to read position list from */
+  Fts5LookaheadReader *p          /* Iterator object to initialize */
+){
+  memset(p, 0, sizeof(Fts5LookaheadReader));
+  p->a = a;
+  p->n = n;
+  fts5LookaheadReaderNext(p);
+  return fts5LookaheadReaderNext(p);
+}
+
+typedef struct Fts5NearTrimmer Fts5NearTrimmer;
+struct Fts5NearTrimmer {
+  Fts5LookaheadReader reader;     /* Input iterator */
+  Fts5PoslistWriter writer;       /* Writer context */
+  Fts5Buffer *pOut;               /* Output poslist */
+};
+
+/*
+** The near-set object passed as the first argument contains more than
+** one phrase. All phrases currently point to the same row. The
+** Fts5ExprPhrase.poslist buffers are populated accordingly. This function
+** tests if the current row contains instances of each phrase sufficiently
+** close together to meet the NEAR constraint. Non-zero is returned if it
+** does, or zero otherwise.
+**
+** If in/out parameter (*pRc) is set to other than SQLITE_OK when this
+** function is called, it is a no-op. Or, if an error (e.g. SQLITE_NOMEM)
+** occurs within this function (*pRc) is set accordingly before returning.
+** The return value is undefined in both these cases.
+** 
+** If no error occurs and non-zero (a match) is returned, the position-list
+** of each phrase object is edited to contain only those entries that
+** meet the constraint before returning.
+*/
+static int fts5ExprNearIsMatch(int *pRc, Fts5ExprNearset *pNear){
+  Fts5NearTrimmer aStatic[4];
+  Fts5NearTrimmer *a = aStatic;
+  Fts5ExprPhrase **apPhrase = pNear->apPhrase;
+
+  int i;
+  int rc = *pRc;
+  int bMatch;
+
+  assert( pNear->nPhrase>1 );
+
+  /* If the aStatic[] array is not large enough, allocate a large array
+  ** using sqlite3_malloc(). This approach could be improved upon. */
+  if( pNear->nPhrase>ArraySize(aStatic) ){
+    sqlite3_int64 nByte = sizeof(Fts5NearTrimmer) * pNear->nPhrase;
+    a = (Fts5NearTrimmer*)sqlite3Fts5MallocZero(&rc, nByte);
+  }else{
+    memset(aStatic, 0, sizeof(aStatic));
+  }
+  if( rc!=SQLITE_OK ){
+    *pRc = rc;
+    return 0;
+  }
+
+  /* Initialize a lookahead iterator for each phrase. After passing the
+  ** buffer and buffer size to the lookaside-reader init function, zero
+  ** the phrase poslist buffer. The new poslist for the phrase (containing
+  ** the same entries as the original with some entries removed on account 
+  ** of the NEAR constraint) is written over the original even as it is
+  ** being read. This is safe as the entries for the new poslist are a
+  ** subset of the old, so it is not possible for data yet to be read to
+  ** be overwritten.  */
+  for(i=0; i<pNear->nPhrase; i++){
+    Fts5Buffer *pPoslist = &apPhrase[i]->poslist;
+    fts5LookaheadReaderInit(pPoslist->p, pPoslist->n, &a[i].reader);
+    pPoslist->n = 0;
+    a[i].pOut = pPoslist;
+  }
+
+  while( 1 ){
+    int iAdv;
+    i64 iMin;
+    i64 iMax;
+
+    /* This block advances the phrase iterators until they point to a set of
+    ** entries that together comprise a match.  */
+    iMax = a[0].reader.iPos;
+    do {
+      bMatch = 1;
+      for(i=0; i<pNear->nPhrase; i++){
+        Fts5LookaheadReader *pPos = &a[i].reader;
+        iMin = iMax - pNear->apPhrase[i]->nTerm - pNear->nNear;
+        if( pPos->iPos<iMin || pPos->iPos>iMax ){
+          bMatch = 0;
+          while( pPos->iPos<iMin ){
+            if( fts5LookaheadReaderNext(pPos) ) goto ismatch_out;
+          }
+          if( pPos->iPos>iMax ) iMax = pPos->iPos;
+        }
+      }
+    }while( bMatch==0 );
+
+    /* Add an entry to each output position list */
+    for(i=0; i<pNear->nPhrase; i++){
+      i64 iPos = a[i].reader.iPos;
+      Fts5PoslistWriter *pWriter = &a[i].writer;
+      if( a[i].pOut->n==0 || iPos!=pWriter->iPrev ){
+        sqlite3Fts5PoslistWriterAppend(a[i].pOut, pWriter, iPos);
+      }
+    }
+
+    iAdv = 0;
+    iMin = a[0].reader.iLookahead;
+    for(i=0; i<pNear->nPhrase; i++){
+      if( a[i].reader.iLookahead < iMin ){
+        iMin = a[i].reader.iLookahead;
+        iAdv = i;
+      }
+    }
+    if( fts5LookaheadReaderNext(&a[iAdv].reader) ) goto ismatch_out;
+  }
+
+  ismatch_out: {
+    int bRet = a[0].pOut->n>0;
+    *pRc = rc;
+    if( a!=aStatic ) sqlite3_free(a);
+    return bRet;
+  }
+}
+
+/*
+** Advance iterator pIter until it points to a value equal to or laster
+** than the initial value of *piLast. If this means the iterator points
+** to a value laster than *piLast, update *piLast to the new lastest value.
+**
+** If the iterator reaches EOF, set *pbEof to true before returning. If
+** an error occurs, set *pRc to an error code. If either *pbEof or *pRc
+** are set, return a non-zero value. Otherwise, return zero.
+*/
+static int fts5ExprAdvanceto(
+  Fts5IndexIter *pIter,           /* Iterator to advance */
+  int bDesc,                      /* True if iterator is "rowid DESC" */
+  i64 *piLast,                    /* IN/OUT: Lastest rowid seen so far */
+  int *pRc,                       /* OUT: Error code */
+  int *pbEof                      /* OUT: Set to true if EOF */
+){
+  i64 iLast = *piLast;
+  i64 iRowid;
+
+  iRowid = pIter->iRowid;
+  if( (bDesc==0 && iLast>iRowid) || (bDesc && iLast<iRowid) ){
+    int rc = sqlite3Fts5IterNextFrom(pIter, iLast);
+    if( rc || sqlite3Fts5IterEof(pIter) ){
+      *pRc = rc;
+      *pbEof = 1;
+      return 1;
+    }
+    iRowid = pIter->iRowid;
+    assert( (bDesc==0 && iRowid>=iLast) || (bDesc==1 && iRowid<=iLast) );
+  }
+  *piLast = iRowid;
+
+  return 0;
+}
+
+static int fts5ExprSynonymAdvanceto(
+  Fts5ExprTerm *pTerm,            /* Term iterator to advance */
+  int bDesc,                      /* True if iterator is "rowid DESC" */
+  i64 *piLast,                    /* IN/OUT: Lastest rowid seen so far */
+  int *pRc                        /* OUT: Error code */
+){
+  int rc = SQLITE_OK;
+  i64 iLast = *piLast;
+  Fts5ExprTerm *p;
+  int bEof = 0;
+
+  for(p=pTerm; rc==SQLITE_OK && p; p=p->pSynonym){
+    if( sqlite3Fts5IterEof(p->pIter)==0 ){
+      i64 iRowid = p->pIter->iRowid;
+      if( (bDesc==0 && iLast>iRowid) || (bDesc && iLast<iRowid) ){
+        rc = sqlite3Fts5IterNextFrom(p->pIter, iLast);
+      }
+    }
+  }
+
+  if( rc!=SQLITE_OK ){
+    *pRc = rc;
+    bEof = 1;
+  }else{
+    *piLast = fts5ExprSynonymRowid(pTerm, bDesc, &bEof);
+  }
+  return bEof;
+}
+
+
+static int fts5ExprNearTest(
+  int *pRc,
+  Fts5Expr *pExpr,                /* Expression that pNear is a part of */
+  Fts5ExprNode *pNode             /* The "NEAR" node (FTS5_STRING) */
+){
+  Fts5ExprNearset *pNear = pNode->pNear;
+  int rc = *pRc;
+
+  if( pExpr->pConfig->eDetail!=FTS5_DETAIL_FULL ){
+    Fts5ExprTerm *pTerm;
+    Fts5ExprPhrase *pPhrase = pNear->apPhrase[0];
+    pPhrase->poslist.n = 0;
+    for(pTerm=&pPhrase->aTerm[0]; pTerm; pTerm=pTerm->pSynonym){
+      Fts5IndexIter *pIter = pTerm->pIter;
+      if( sqlite3Fts5IterEof(pIter)==0 ){
+        if( pIter->iRowid==pNode->iRowid && pIter->nData>0 ){
+          pPhrase->poslist.n = 1;
+        }
+      }
+    }
+    return pPhrase->poslist.n;
+  }else{
+    int i;
+
+    /* Check that each phrase in the nearset matches the current row.
+    ** Populate the pPhrase->poslist buffers at the same time. If any
+    ** phrase is not a match, break out of the loop early.  */
+    for(i=0; rc==SQLITE_OK && i<pNear->nPhrase; i++){
+      Fts5ExprPhrase *pPhrase = pNear->apPhrase[i];
+      if( pPhrase->nTerm>1 || pPhrase->aTerm[0].pSynonym 
+       || pNear->pColset || pPhrase->aTerm[0].bFirst
+      ){
+        int bMatch = 0;
+        rc = fts5ExprPhraseIsMatch(pNode, pPhrase, &bMatch);
+        if( bMatch==0 ) break;
+      }else{
+        Fts5IndexIter *pIter = pPhrase->aTerm[0].pIter;
+        fts5BufferSet(&rc, &pPhrase->poslist, pIter->nData, pIter->pData);
+      }
+    }
+
+    *pRc = rc;
+    if( i==pNear->nPhrase && (i==1 || fts5ExprNearIsMatch(pRc, pNear)) ){
+      return 1;
+    }
+    return 0;
+  }
+}
+
+
+/*
+** Initialize all term iterators in the pNear object. If any term is found
+** to match no documents at all, return immediately without initializing any
+** further iterators.
+**
+** If an error occurs, return an SQLite error code. Otherwise, return
+** SQLITE_OK. It is not considered an error if some term matches zero
+** documents.
+*/
+static int fts5ExprNearInitAll(
+  Fts5Expr *pExpr,
+  Fts5ExprNode *pNode
+){
+  Fts5ExprNearset *pNear = pNode->pNear;
+  int i;
+
+  assert( pNode->bNomatch==0 );
+  for(i=0; i<pNear->nPhrase; i++){
+    Fts5ExprPhrase *pPhrase = pNear->apPhrase[i];
+    if( pPhrase->nTerm==0 ){
+      pNode->bEof = 1;
+      return SQLITE_OK;
+    }else{
+      int j;
+      for(j=0; j<pPhrase->nTerm; j++){
+        Fts5ExprTerm *pTerm = &pPhrase->aTerm[j];
+        Fts5ExprTerm *p;
+        int bHit = 0;
+
+        for(p=pTerm; p; p=p->pSynonym){
+          int rc;
+          if( p->pIter ){
+            sqlite3Fts5IterClose(p->pIter);
+            p->pIter = 0;
+          }
+          rc = sqlite3Fts5IndexQuery(
+              pExpr->pIndex, p->pTerm, p->nQueryTerm,
+              (pTerm->bPrefix ? FTS5INDEX_QUERY_PREFIX : 0) |
+              (pExpr->bDesc ? FTS5INDEX_QUERY_DESC : 0),
+              pNear->pColset,
+              &p->pIter
+          );
+          assert( (rc==SQLITE_OK)==(p->pIter!=0) );
+          if( rc!=SQLITE_OK ) return rc;
+          if( 0==sqlite3Fts5IterEof(p->pIter) ){
+            bHit = 1;
+          }
+        }
+
+        if( bHit==0 ){
+          pNode->bEof = 1;
+          return SQLITE_OK;
+        }
+      }
+    }
+  }
+
+  pNode->bEof = 0;
+  return SQLITE_OK;
+}
+
+/*
+** If pExpr is an ASC iterator, this function returns a value with the
+** same sign as:
+**
+**   (iLhs - iRhs)
+**
+** Otherwise, if this is a DESC iterator, the opposite is returned:
+**
+**   (iRhs - iLhs)
+*/
+static int fts5RowidCmp(
+  Fts5Expr *pExpr,
+  i64 iLhs,
+  i64 iRhs
+){
+  assert( pExpr->bDesc==0 || pExpr->bDesc==1 );
+  if( pExpr->bDesc==0 ){
+    if( iLhs<iRhs ) return -1;
+    return (iLhs > iRhs);
+  }else{
+    if( iLhs>iRhs ) return -1;
+    return (iLhs < iRhs);
+  }
+}
+
+static void fts5ExprSetEof(Fts5ExprNode *pNode){
+  int i;
+  pNode->bEof = 1;
+  pNode->bNomatch = 0;
+  for(i=0; i<pNode->nChild; i++){
+    fts5ExprSetEof(pNode->apChild[i]);
+  }
+}
+
+static void fts5ExprNodeZeroPoslist(Fts5ExprNode *pNode){
+  if( pNode->eType==FTS5_STRING || pNode->eType==FTS5_TERM ){
+    Fts5ExprNearset *pNear = pNode->pNear;
+    int i;
+    for(i=0; i<pNear->nPhrase; i++){
+      Fts5ExprPhrase *pPhrase = pNear->apPhrase[i];
+      pPhrase->poslist.n = 0;
+    }
+  }else{
+    int i;
+    for(i=0; i<pNode->nChild; i++){
+      fts5ExprNodeZeroPoslist(pNode->apChild[i]);
+    }
+  }
+}
+
+
+
+/*
+** Compare the values currently indicated by the two nodes as follows:
+**
+**    res = (*p1) - (*p2)
+**
+** Nodes that point to values that come later in the iteration order are
+** considered to be larger. Nodes at EOF are the largest of all.
+**
+** This means that if the iteration order is ASC, then numerically larger
+** rowids are considered larger. Or if it is the default DESC, numerically
+** smaller rowids are larger.
+*/
+static int fts5NodeCompare(
+  Fts5Expr *pExpr,
+  Fts5ExprNode *p1, 
+  Fts5ExprNode *p2
+){
+  if( p2->bEof ) return -1;
+  if( p1->bEof ) return +1;
+  return fts5RowidCmp(pExpr, p1->iRowid, p2->iRowid);
+}
+
+/*
+** All individual term iterators in pNear are guaranteed to be valid when
+** this function is called. This function checks if all term iterators
+** point to the same rowid, and if not, advances them until they do.
+** If an EOF is reached before this happens, *pbEof is set to true before
+** returning.
+**
+** SQLITE_OK is returned if an error occurs, or an SQLite error code 
+** otherwise. It is not considered an error code if an iterator reaches
+** EOF.
+*/
+static int fts5ExprNodeTest_STRING(
+  Fts5Expr *pExpr,                /* Expression pPhrase belongs to */
+  Fts5ExprNode *pNode
+){
+  Fts5ExprNearset *pNear = pNode->pNear;
+  Fts5ExprPhrase *pLeft = pNear->apPhrase[0];
+  int rc = SQLITE_OK;
+  i64 iLast;                      /* Lastest rowid any iterator points to */
+  int i, j;                       /* Phrase and token index, respectively */
+  int bMatch;                     /* True if all terms are at the same rowid */
+  const int bDesc = pExpr->bDesc;
+
+  /* Check that this node should not be FTS5_TERM */
+  assert( pNear->nPhrase>1 
+       || pNear->apPhrase[0]->nTerm>1 
+       || pNear->apPhrase[0]->aTerm[0].pSynonym
+       || pNear->apPhrase[0]->aTerm[0].bFirst
+  );
+
+  /* Initialize iLast, the "lastest" rowid any iterator points to. If the
+  ** iterator skips through rowids in the default ascending order, this means
+  ** the maximum rowid. Or, if the iterator is "ORDER BY rowid DESC", then it
+  ** means the minimum rowid.  */
+  if( pLeft->aTerm[0].pSynonym ){
+    iLast = fts5ExprSynonymRowid(&pLeft->aTerm[0], bDesc, 0);
+  }else{
+    iLast = pLeft->aTerm[0].pIter->iRowid;
+  }
+
+  do {
+    bMatch = 1;
+    for(i=0; i<pNear->nPhrase; i++){
+      Fts5ExprPhrase *pPhrase = pNear->apPhrase[i];
+      for(j=0; j<pPhrase->nTerm; j++){
+        Fts5ExprTerm *pTerm = &pPhrase->aTerm[j];
+        if( pTerm->pSynonym ){
+          i64 iRowid = fts5ExprSynonymRowid(pTerm, bDesc, 0);
+          if( iRowid==iLast ) continue;
+          bMatch = 0;
+          if( fts5ExprSynonymAdvanceto(pTerm, bDesc, &iLast, &rc) ){
+            pNode->bNomatch = 0;
+            pNode->bEof = 1;
+            return rc;
+          }
+        }else{
+          Fts5IndexIter *pIter = pPhrase->aTerm[j].pIter;
+          if( pIter->iRowid==iLast ) continue;
+          bMatch = 0;
+          if( fts5ExprAdvanceto(pIter, bDesc, &iLast, &rc, &pNode->bEof) ){
+            return rc;
+          }
+        }
+      }
+    }
+  }while( bMatch==0 );
+
+  pNode->iRowid = iLast;
+  pNode->bNomatch = ((0==fts5ExprNearTest(&rc, pExpr, pNode)) && rc==SQLITE_OK);
+  assert( pNode->bEof==0 || pNode->bNomatch==0 );
+
+  return rc;
+}
+
+/*
+** Advance the first term iterator in the first phrase of pNear. Set output
+** variable *pbEof to true if it reaches EOF or if an error occurs.
+**
+** Return SQLITE_OK if successful, or an SQLite error code if an error
+** occurs.
+*/
+static int fts5ExprNodeNext_STRING(
+  Fts5Expr *pExpr,                /* Expression pPhrase belongs to */
+  Fts5ExprNode *pNode,            /* FTS5_STRING or FTS5_TERM node */
+  int bFromValid,
+  i64 iFrom 
+){
+  Fts5ExprTerm *pTerm = &pNode->pNear->apPhrase[0]->aTerm[0];
+  int rc = SQLITE_OK;
+
+  pNode->bNomatch = 0;
+  if( pTerm->pSynonym ){
+    int bEof = 1;
+    Fts5ExprTerm *p;
+
+    /* Find the firstest rowid any synonym points to. */
+    i64 iRowid = fts5ExprSynonymRowid(pTerm, pExpr->bDesc, 0);
+
+    /* Advance each iterator that currently points to iRowid. Or, if iFrom
+    ** is valid - each iterator that points to a rowid before iFrom.  */
+    for(p=pTerm; p; p=p->pSynonym){
+      if( sqlite3Fts5IterEof(p->pIter)==0 ){
+        i64 ii = p->pIter->iRowid;
+        if( ii==iRowid 
+         || (bFromValid && ii!=iFrom && (ii>iFrom)==pExpr->bDesc) 
+        ){
+          if( bFromValid ){
+            rc = sqlite3Fts5IterNextFrom(p->pIter, iFrom);
+          }else{
+            rc = sqlite3Fts5IterNext(p->pIter);
+          }
+          if( rc!=SQLITE_OK ) break;
+          if( sqlite3Fts5IterEof(p->pIter)==0 ){
+            bEof = 0;
+          }
+        }else{
+          bEof = 0;
+        }
+      }
+    }
+
+    /* Set the EOF flag if either all synonym iterators are at EOF or an
+    ** error has occurred.  */
+    pNode->bEof = (rc || bEof);
+  }else{
+    Fts5IndexIter *pIter = pTerm->pIter;
+
+    assert( Fts5NodeIsString(pNode) );
+    if( bFromValid ){
+      rc = sqlite3Fts5IterNextFrom(pIter, iFrom);
+    }else{
+      rc = sqlite3Fts5IterNext(pIter);
+    }
+
+    pNode->bEof = (rc || sqlite3Fts5IterEof(pIter));
+  }
+
+  if( pNode->bEof==0 ){
+    assert( rc==SQLITE_OK );
+    rc = fts5ExprNodeTest_STRING(pExpr, pNode);
+  }
+
+  return rc;
+}
+
+
+static int fts5ExprNodeTest_TERM(
+  Fts5Expr *pExpr,                /* Expression that pNear is a part of */
+  Fts5ExprNode *pNode             /* The "NEAR" node (FTS5_TERM) */
+){
+  /* As this "NEAR" object is actually a single phrase that consists 
+  ** of a single term only, grab pointers into the poslist managed by the
+  ** fts5_index.c iterator object. This is much faster than synthesizing 
+  ** a new poslist the way we have to for more complicated phrase or NEAR
+  ** expressions.  */
+  Fts5ExprPhrase *pPhrase = pNode->pNear->apPhrase[0];
+  Fts5IndexIter *pIter = pPhrase->aTerm[0].pIter;
+
+  assert( pNode->eType==FTS5_TERM );
+  assert( pNode->pNear->nPhrase==1 && pPhrase->nTerm==1 );
+  assert( pPhrase->aTerm[0].pSynonym==0 );
+
+  pPhrase->poslist.n = pIter->nData;
+  if( pExpr->pConfig->eDetail==FTS5_DETAIL_FULL ){
+    pPhrase->poslist.p = (u8*)pIter->pData;
+  }
+  pNode->iRowid = pIter->iRowid;
+  pNode->bNomatch = (pPhrase->poslist.n==0);
+  return SQLITE_OK;
+}
+
+/*
+** xNext() method for a node of type FTS5_TERM.
+*/
+static int fts5ExprNodeNext_TERM(
+  Fts5Expr *pExpr, 
+  Fts5ExprNode *pNode,
+  int bFromValid,
+  i64 iFrom
+){
+  int rc;
+  Fts5IndexIter *pIter = pNode->pNear->apPhrase[0]->aTerm[0].pIter;
+
+  assert( pNode->bEof==0 );
+  if( bFromValid ){
+    rc = sqlite3Fts5IterNextFrom(pIter, iFrom);
+  }else{
+    rc = sqlite3Fts5IterNext(pIter);
+  }
+  if( rc==SQLITE_OK && sqlite3Fts5IterEof(pIter)==0 ){
+    rc = fts5ExprNodeTest_TERM(pExpr, pNode);
+  }else{
+    pNode->bEof = 1;
+    pNode->bNomatch = 0;
+  }
+  return rc;
+}
+
+static void fts5ExprNodeTest_OR(
+  Fts5Expr *pExpr,                /* Expression of which pNode is a part */
+  Fts5ExprNode *pNode             /* Expression node to test */
+){
+  Fts5ExprNode *pNext = pNode->apChild[0];
+  int i;
+
+  for(i=1; i<pNode->nChild; i++){
+    Fts5ExprNode *pChild = pNode->apChild[i];
+    int cmp = fts5NodeCompare(pExpr, pNext, pChild);
+    if( cmp>0 || (cmp==0 && pChild->bNomatch==0) ){
+      pNext = pChild;
+    }
+  }
+  pNode->iRowid = pNext->iRowid;
+  pNode->bEof = pNext->bEof;
+  pNode->bNomatch = pNext->bNomatch;
+}
+
+static int fts5ExprNodeNext_OR(
+  Fts5Expr *pExpr, 
+  Fts5ExprNode *pNode,
+  int bFromValid,
+  i64 iFrom
+){
+  int i;
+  i64 iLast = pNode->iRowid;
+
+  for(i=0; i<pNode->nChild; i++){
+    Fts5ExprNode *p1 = pNode->apChild[i];
+    assert( p1->bEof || fts5RowidCmp(pExpr, p1->iRowid, iLast)>=0 );
+    if( p1->bEof==0 ){
+      if( (p1->iRowid==iLast) 
+       || (bFromValid && fts5RowidCmp(pExpr, p1->iRowid, iFrom)<0)
+      ){
+        int rc = fts5ExprNodeNext(pExpr, p1, bFromValid, iFrom);
+        if( rc!=SQLITE_OK ){
+          pNode->bNomatch = 0;
+          return rc;
+        }
+      }
+    }
+  }
+
+  fts5ExprNodeTest_OR(pExpr, pNode);
+  return SQLITE_OK;
+}
+
+/*
+** Argument pNode is an FTS5_AND node.
+*/
+static int fts5ExprNodeTest_AND(
+  Fts5Expr *pExpr,                /* Expression pPhrase belongs to */
+  Fts5ExprNode *pAnd              /* FTS5_AND node to advance */
+){
+  int iChild;
+  i64 iLast = pAnd->iRowid;
+  int rc = SQLITE_OK;
+  int bMatch;
+
+  assert( pAnd->bEof==0 );
+  do {
+    pAnd->bNomatch = 0;
+    bMatch = 1;
+    for(iChild=0; iChild<pAnd->nChild; iChild++){
+      Fts5ExprNode *pChild = pAnd->apChild[iChild];
+      int cmp = fts5RowidCmp(pExpr, iLast, pChild->iRowid);
+      if( cmp>0 ){
+        /* Advance pChild until it points to iLast or laster */
+        rc = fts5ExprNodeNext(pExpr, pChild, 1, iLast);
+        if( rc!=SQLITE_OK ){
+          pAnd->bNomatch = 0;
+          return rc;
+        }
+      }
+
+      /* If the child node is now at EOF, so is the parent AND node. Otherwise,
+      ** the child node is guaranteed to have advanced at least as far as
+      ** rowid iLast. So if it is not at exactly iLast, pChild->iRowid is the
+      ** new lastest rowid seen so far.  */
+      assert( pChild->bEof || fts5RowidCmp(pExpr, iLast, pChild->iRowid)<=0 );
+      if( pChild->bEof ){
+        fts5ExprSetEof(pAnd);
+        bMatch = 1;
+        break;
+      }else if( iLast!=pChild->iRowid ){
+        bMatch = 0;
+        iLast = pChild->iRowid;
+      }
+
+      if( pChild->bNomatch ){
+        pAnd->bNomatch = 1;
+      }
+    }
+  }while( bMatch==0 );
+
+  if( pAnd->bNomatch && pAnd!=pExpr->pRoot ){
+    fts5ExprNodeZeroPoslist(pAnd);
+  }
+  pAnd->iRowid = iLast;
+  return SQLITE_OK;
+}
+
+static int fts5ExprNodeNext_AND(
+  Fts5Expr *pExpr, 
+  Fts5ExprNode *pNode,
+  int bFromValid,
+  i64 iFrom
+){
+  int rc = fts5ExprNodeNext(pExpr, pNode->apChild[0], bFromValid, iFrom);
+  if( rc==SQLITE_OK ){
+    rc = fts5ExprNodeTest_AND(pExpr, pNode);
+  }else{
+    pNode->bNomatch = 0;
+  }
+  return rc;
+}
+
+static int fts5ExprNodeTest_NOT(
+  Fts5Expr *pExpr,                /* Expression pPhrase belongs to */
+  Fts5ExprNode *pNode             /* FTS5_NOT node to advance */
+){
+  int rc = SQLITE_OK;
+  Fts5ExprNode *p1 = pNode->apChild[0];
+  Fts5ExprNode *p2 = pNode->apChild[1];
+  assert( pNode->nChild==2 );
+
+  while( rc==SQLITE_OK && p1->bEof==0 ){
+    int cmp = fts5NodeCompare(pExpr, p1, p2);
+    if( cmp>0 ){
+      rc = fts5ExprNodeNext(pExpr, p2, 1, p1->iRowid);
+      cmp = fts5NodeCompare(pExpr, p1, p2);
+    }
+    assert( rc!=SQLITE_OK || cmp<=0 );
+    if( cmp || p2->bNomatch ) break;
+    rc = fts5ExprNodeNext(pExpr, p1, 0, 0);
+  }
+  pNode->bEof = p1->bEof;
+  pNode->bNomatch = p1->bNomatch;
+  pNode->iRowid = p1->iRowid;
+  if( p1->bEof ){
+    fts5ExprNodeZeroPoslist(p2);
+  }
+  return rc;
+}
+
+static int fts5ExprNodeNext_NOT(
+  Fts5Expr *pExpr, 
+  Fts5ExprNode *pNode,
+  int bFromValid,
+  i64 iFrom
+){
+  int rc = fts5ExprNodeNext(pExpr, pNode->apChild[0], bFromValid, iFrom);
+  if( rc==SQLITE_OK ){
+    rc = fts5ExprNodeTest_NOT(pExpr, pNode);
+  }
+  if( rc!=SQLITE_OK ){
+    pNode->bNomatch = 0;
+  }
+  return rc;
+}
+
+/*
+** If pNode currently points to a match, this function returns SQLITE_OK
+** without modifying it. Otherwise, pNode is advanced until it does point
+** to a match or EOF is reached.
+*/
+static int fts5ExprNodeTest(
+  Fts5Expr *pExpr,                /* Expression of which pNode is a part */
+  Fts5ExprNode *pNode             /* Expression node to test */
+){
+  int rc = SQLITE_OK;
+  if( pNode->bEof==0 ){
+    switch( pNode->eType ){
+
+      case FTS5_STRING: {
+        rc = fts5ExprNodeTest_STRING(pExpr, pNode);
+        break;
+      }
+
+      case FTS5_TERM: {
+        rc = fts5ExprNodeTest_TERM(pExpr, pNode);
+        break;
+      }
+
+      case FTS5_AND: {
+        rc = fts5ExprNodeTest_AND(pExpr, pNode);
+        break;
+      }
+
+      case FTS5_OR: {
+        fts5ExprNodeTest_OR(pExpr, pNode);
+        break;
+      }
+
+      default: assert( pNode->eType==FTS5_NOT ); {
+        rc = fts5ExprNodeTest_NOT(pExpr, pNode);
+        break;
+      }
+    }
+  }
+  return rc;
+}
+
+ 
+/*
+** Set node pNode, which is part of expression pExpr, to point to the first
+** match. If there are no matches, set the Node.bEof flag to indicate EOF.
+**
+** Return an SQLite error code if an error occurs, or SQLITE_OK otherwise.
+** It is not an error if there are no matches.
+*/
+static int fts5ExprNodeFirst(Fts5Expr *pExpr, Fts5ExprNode *pNode){
+  int rc = SQLITE_OK;
+  pNode->bEof = 0;
+  pNode->bNomatch = 0;
+
+  if( Fts5NodeIsString(pNode) ){
+    /* Initialize all term iterators in the NEAR object. */
+    rc = fts5ExprNearInitAll(pExpr, pNode);
+  }else if( pNode->xNext==0 ){
+    pNode->bEof = 1;
+  }else{
+    int i;
+    int nEof = 0;
+    for(i=0; i<pNode->nChild && rc==SQLITE_OK; i++){
+      Fts5ExprNode *pChild = pNode->apChild[i];
+      rc = fts5ExprNodeFirst(pExpr, pNode->apChild[i]);
+      assert( pChild->bEof==0 || pChild->bEof==1 );
+      nEof += pChild->bEof;
+    }
+    pNode->iRowid = pNode->apChild[0]->iRowid;
+
+    switch( pNode->eType ){
+      case FTS5_AND:
+        if( nEof>0 ) fts5ExprSetEof(pNode);
+        break;
+
+      case FTS5_OR:
+        if( pNode->nChild==nEof ) fts5ExprSetEof(pNode);
+        break;
+
+      default:
+        assert( pNode->eType==FTS5_NOT );
+        pNode->bEof = pNode->apChild[0]->bEof;
+        break;
+    }
+  }
+
+  if( rc==SQLITE_OK ){
+    rc = fts5ExprNodeTest(pExpr, pNode);
+  }
+  return rc;
+}
+
+
+/*
+** Begin iterating through the set of documents in index pIdx matched by
+** the MATCH expression passed as the first argument. If the "bDesc" 
+** parameter is passed a non-zero value, iteration is in descending rowid 
+** order. Or, if it is zero, in ascending order.
+**
+** If iterating in ascending rowid order (bDesc==0), the first document
+** visited is that with the smallest rowid that is larger than or equal
+** to parameter iFirst. Or, if iterating in ascending order (bDesc==1),
+** then the first document visited must have a rowid smaller than or
+** equal to iFirst.
+**
+** Return SQLITE_OK if successful, or an SQLite error code otherwise. It
+** is not considered an error if the query does not match any documents.
+*/
+int sqlite3Fts5ExprFirst(Fts5Expr *p, Fts5Index *pIdx, i64 iFirst, int bDesc){
+  Fts5ExprNode *pRoot = p->pRoot;
+  int rc;                         /* Return code */
+
+  p->pIndex = pIdx;
+  p->bDesc = bDesc;
+  rc = fts5ExprNodeFirst(p, pRoot);
+
+  /* If not at EOF but the current rowid occurs earlier than iFirst in
+  ** the iteration order, move to document iFirst or later. */
+  if( rc==SQLITE_OK 
+   && 0==pRoot->bEof 
+   && fts5RowidCmp(p, pRoot->iRowid, iFirst)<0 
+  ){
+    rc = fts5ExprNodeNext(p, pRoot, 1, iFirst);
+  }
+
+  /* If the iterator is not at a real match, skip forward until it is. */
+  while( pRoot->bNomatch && rc==SQLITE_OK ){
+    assert( pRoot->bEof==0 );
+    rc = fts5ExprNodeNext(p, pRoot, 0, 0);
+  }
+  return rc;
+}
+
+/*
+** Move to the next document 
+**
+** Return SQLITE_OK if successful, or an SQLite error code otherwise. It
+** is not considered an error if the query does not match any documents.
+*/
+int sqlite3Fts5ExprNext(Fts5Expr *p, i64 iLast){
+  int rc;
+  Fts5ExprNode *pRoot = p->pRoot;
+  assert( pRoot->bEof==0 && pRoot->bNomatch==0 );
+  do {
+    rc = fts5ExprNodeNext(p, pRoot, 0, 0);
+    assert( pRoot->bNomatch==0 || (rc==SQLITE_OK && pRoot->bEof==0) );
+  }while( pRoot->bNomatch );
+  if( fts5RowidCmp(p, pRoot->iRowid, iLast)>0 ){
+    pRoot->bEof = 1;
+  }
+  return rc;
+}
+
+int sqlite3Fts5ExprEof(Fts5Expr *p){
+  return p->pRoot->bEof;
+}
+
+i64 sqlite3Fts5ExprRowid(Fts5Expr *p){
+  return p->pRoot->iRowid;
+}
+
+static int fts5ParseStringFromToken(Fts5Token *pToken, char **pz){
+  int rc = SQLITE_OK;
+  *pz = sqlite3Fts5Strndup(&rc, pToken->p, pToken->n);
+  return rc;
+}
+
+/*
+** Free the phrase object passed as the only argument.
+*/
+static void fts5ExprPhraseFree(Fts5ExprPhrase *pPhrase){
+  if( pPhrase ){
+    int i;
+    for(i=0; i<pPhrase->nTerm; i++){
+      Fts5ExprTerm *pSyn;
+      Fts5ExprTerm *pNext;
+      Fts5ExprTerm *pTerm = &pPhrase->aTerm[i];
+      sqlite3_free(pTerm->pTerm);
+      sqlite3Fts5IterClose(pTerm->pIter);
+      for(pSyn=pTerm->pSynonym; pSyn; pSyn=pNext){
+        pNext = pSyn->pSynonym;
+        sqlite3Fts5IterClose(pSyn->pIter);
+        fts5BufferFree((Fts5Buffer*)&pSyn[1]);
+        sqlite3_free(pSyn);
+      }
+    }
+    if( pPhrase->poslist.nSpace>0 ) fts5BufferFree(&pPhrase->poslist);
+    sqlite3_free(pPhrase);
+  }
+}
+
+/*
+** Set the "bFirst" flag on the first token of the phrase passed as the
+** only argument.
+*/
+void sqlite3Fts5ParseSetCaret(Fts5ExprPhrase *pPhrase){
+  if( pPhrase && pPhrase->nTerm ){
+    pPhrase->aTerm[0].bFirst = 1;
+  }
+}
+
+/*
+** If argument pNear is NULL, then a new Fts5ExprNearset object is allocated
+** and populated with pPhrase. Or, if pNear is not NULL, phrase pPhrase is
+** appended to it and the results returned.
+**
+** If an OOM error occurs, both the pNear and pPhrase objects are freed and
+** NULL returned.
+*/
+Fts5ExprNearset *sqlite3Fts5ParseNearset(
+  Fts5Parse *pParse,              /* Parse context */
+  Fts5ExprNearset *pNear,         /* Existing nearset, or NULL */
+  Fts5ExprPhrase *pPhrase         /* Recently parsed phrase */
+){
+  const int SZALLOC = 8;
+  Fts5ExprNearset *pRet = 0;
+
+  if( pParse->rc==SQLITE_OK ){
+    if( pNear==0 ){
+      sqlite3_int64 nByte;
+      nByte = sizeof(Fts5ExprNearset) + SZALLOC * sizeof(Fts5ExprPhrase*);
+      pRet = sqlite3_malloc64(nByte);
+      if( pRet==0 ){
+        pParse->rc = SQLITE_NOMEM;
+      }else{
+        memset(pRet, 0, (size_t)nByte);
+      }
+    }else if( (pNear->nPhrase % SZALLOC)==0 ){
+      int nNew = pNear->nPhrase + SZALLOC;
+      sqlite3_int64 nByte;
+
+      nByte = sizeof(Fts5ExprNearset) + nNew * sizeof(Fts5ExprPhrase*);
+      pRet = (Fts5ExprNearset*)sqlite3_realloc64(pNear, nByte);
+      if( pRet==0 ){
+        pParse->rc = SQLITE_NOMEM;
+      }
+    }else{
+      pRet = pNear;
+    }
+  }
+
+  if( pRet==0 ){
+    assert( pParse->rc!=SQLITE_OK );
+    sqlite3Fts5ParseNearsetFree(pNear);
+    sqlite3Fts5ParsePhraseFree(pPhrase);
+  }else{
+    if( pRet->nPhrase>0 ){
+      Fts5ExprPhrase *pLast = pRet->apPhrase[pRet->nPhrase-1];
+      assert( pParse!=0 );
+      assert( pParse->apPhrase!=0 );
+      assert( pParse->nPhrase>=2 );
+      assert( pLast==pParse->apPhrase[pParse->nPhrase-2] );
+      if( pPhrase->nTerm==0 ){
+        fts5ExprPhraseFree(pPhrase);
+        pRet->nPhrase--;
+        pParse->nPhrase--;
+        pPhrase = pLast;
+      }else if( pLast->nTerm==0 ){
+        fts5ExprPhraseFree(pLast);
+        pParse->apPhrase[pParse->nPhrase-2] = pPhrase;
+        pParse->nPhrase--;
+        pRet->nPhrase--;
+      }
+    }
+    pRet->apPhrase[pRet->nPhrase++] = pPhrase;
+  }
+  return pRet;
+}
+
+typedef struct TokenCtx TokenCtx;
+struct TokenCtx {
+  Fts5ExprPhrase *pPhrase;
+  Fts5Config *pConfig;
+  int rc;
+};
+
+/*
+** Callback for tokenizing terms used by ParseTerm().
+*/
+static int fts5ParseTokenize(
+  void *pContext,                 /* Pointer to Fts5InsertCtx object */
+  int tflags,                     /* Mask of FTS5_TOKEN_* flags */
+  const char *pToken,             /* Buffer containing token */
+  int nToken,                     /* Size of token in bytes */
+  int iUnused1,                   /* Start offset of token */
+  int iUnused2                    /* End offset of token */
+){
+  int rc = SQLITE_OK;
+  const int SZALLOC = 8;
+  TokenCtx *pCtx = (TokenCtx*)pContext;
+  Fts5ExprPhrase *pPhrase = pCtx->pPhrase;
+
+  UNUSED_PARAM2(iUnused1, iUnused2);
+
+  /* If an error has already occurred, this is a no-op */
+  if( pCtx->rc!=SQLITE_OK ) return pCtx->rc;
+  if( nToken>FTS5_MAX_TOKEN_SIZE ) nToken = FTS5_MAX_TOKEN_SIZE;
+
+  if( pPhrase && pPhrase->nTerm>0 && (tflags & FTS5_TOKEN_COLOCATED) ){
+    Fts5ExprTerm *pSyn;
+    sqlite3_int64 nByte = sizeof(Fts5ExprTerm) + sizeof(Fts5Buffer) + nToken+1;
+    pSyn = (Fts5ExprTerm*)sqlite3_malloc64(nByte);
+    if( pSyn==0 ){
+      rc = SQLITE_NOMEM;
+    }else{
+      memset(pSyn, 0, (size_t)nByte);
+      pSyn->pTerm = ((char*)pSyn) + sizeof(Fts5ExprTerm) + sizeof(Fts5Buffer);
+      pSyn->nFullTerm = pSyn->nQueryTerm = nToken;
+      if( pCtx->pConfig->bTokendata ){
+        pSyn->nQueryTerm = (int)strlen(pSyn->pTerm);
+      }
+      memcpy(pSyn->pTerm, pToken, nToken);
+      pSyn->pSynonym = pPhrase->aTerm[pPhrase->nTerm-1].pSynonym;
+      pPhrase->aTerm[pPhrase->nTerm-1].pSynonym = pSyn;
+    }
+  }else{
+    Fts5ExprTerm *pTerm;
+    if( pPhrase==0 || (pPhrase->nTerm % SZALLOC)==0 ){
+      Fts5ExprPhrase *pNew;
+      int nNew = SZALLOC + (pPhrase ? pPhrase->nTerm : 0);
+
+      pNew = (Fts5ExprPhrase*)sqlite3_realloc64(pPhrase, 
+          sizeof(Fts5ExprPhrase) + sizeof(Fts5ExprTerm) * nNew
+      );
+      if( pNew==0 ){
+        rc = SQLITE_NOMEM;
+      }else{
+        if( pPhrase==0 ) memset(pNew, 0, sizeof(Fts5ExprPhrase));
+        pCtx->pPhrase = pPhrase = pNew;
+        pNew->nTerm = nNew - SZALLOC;
+      }
+    }
+
+    if( rc==SQLITE_OK ){
+      pTerm = &pPhrase->aTerm[pPhrase->nTerm++];
+      memset(pTerm, 0, sizeof(Fts5ExprTerm));
+      pTerm->pTerm = sqlite3Fts5Strndup(&rc, pToken, nToken);
+      pTerm->nFullTerm = pTerm->nQueryTerm = nToken;
+      if( pCtx->pConfig->bTokendata && rc==SQLITE_OK ){ 
+        pTerm->nQueryTerm = (int)strlen(pTerm->pTerm);
+      }
+    }
+  }
+
+  pCtx->rc = rc;
+  return rc;
+}
+
+
+/*
+** Free the phrase object passed as the only argument.
+*/
+void sqlite3Fts5ParsePhraseFree(Fts5ExprPhrase *pPhrase){
+  fts5ExprPhraseFree(pPhrase);
+}
+
+/*
+** Free the phrase object passed as the second argument.
+*/
+void sqlite3Fts5ParseNearsetFree(Fts5ExprNearset *pNear){
+  if( pNear ){
+    int i;
+    for(i=0; i<pNear->nPhrase; i++){
+      fts5ExprPhraseFree(pNear->apPhrase[i]);
+    }
+    sqlite3_free(pNear->pColset);
+    sqlite3_free(pNear);
+  }
+}
+
+void sqlite3Fts5ParseFinished(Fts5Parse *pParse, Fts5ExprNode *p){
+  assert( pParse->pExpr==0 );
+  pParse->pExpr = p;
+}
+
+static int parseGrowPhraseArray(Fts5Parse *pParse){
+  if( (pParse->nPhrase % 8)==0 ){
+    sqlite3_int64 nByte = sizeof(Fts5ExprPhrase*) * (pParse->nPhrase + 8);
+    Fts5ExprPhrase **apNew;
+    apNew = (Fts5ExprPhrase**)sqlite3_realloc64(pParse->apPhrase, nByte);
+    if( apNew==0 ){
+      pParse->rc = SQLITE_NOMEM;
+      return SQLITE_NOMEM;
+    }
+    pParse->apPhrase = apNew;
+  }
+  return SQLITE_OK;
+}
+
+/*
+** This function is called by the parser to process a string token. The
+** string may or may not be quoted. In any case it is tokenized and a
+** phrase object consisting of all tokens returned.
+*/
+Fts5ExprPhrase *sqlite3Fts5ParseTerm(
+  Fts5Parse *pParse,              /* Parse context */
+  Fts5ExprPhrase *pAppend,        /* Phrase to append to */
+  Fts5Token *pToken,              /* String to tokenize */
+  int bPrefix                     /* True if there is a trailing "*" */
+){
+  Fts5Config *pConfig = pParse->pConfig;
+  TokenCtx sCtx;                  /* Context object passed to callback */
+  int rc;                         /* Tokenize return code */
+  char *z = 0;
+
+  memset(&sCtx, 0, sizeof(TokenCtx));
+  sCtx.pPhrase = pAppend;
+  sCtx.pConfig = pConfig;
+
+  rc = fts5ParseStringFromToken(pToken, &z);
+  if( rc==SQLITE_OK ){
+    int flags = FTS5_TOKENIZE_QUERY | (bPrefix ? FTS5_TOKENIZE_PREFIX : 0);
+    int n;
+    sqlite3Fts5Dequote(z);
+    n = (int)strlen(z);
+    rc = sqlite3Fts5Tokenize(pConfig, flags, z, n, &sCtx, fts5ParseTokenize);
+  }
+  sqlite3_free(z);
+  if( rc || (rc = sCtx.rc) ){
+    pParse->rc = rc;
+    fts5ExprPhraseFree(sCtx.pPhrase);
+    sCtx.pPhrase = 0;
+  }else{
+
+    if( pAppend==0 ){
+      if( parseGrowPhraseArray(pParse) ){
+        fts5ExprPhraseFree(sCtx.pPhrase);
+        return 0;
+      }
+      pParse->nPhrase++;
+    }
+
+    if( sCtx.pPhrase==0 ){
+      /* This happens when parsing a token or quoted phrase that contains
+      ** no token characters at all. (e.g ... MATCH '""'). */
+      sCtx.pPhrase = sqlite3Fts5MallocZero(&pParse->rc, sizeof(Fts5ExprPhrase));
+    }else if( sCtx.pPhrase->nTerm ){
+      sCtx.pPhrase->aTerm[sCtx.pPhrase->nTerm-1].bPrefix = (u8)bPrefix;
+    }
+    assert( pParse->apPhrase!=0 );
+    pParse->apPhrase[pParse->nPhrase-1] = sCtx.pPhrase;
+  }
+
+  return sCtx.pPhrase;
+}
+
+/*
+** Create a new FTS5 expression by cloning phrase iPhrase of the
+** expression passed as the second argument.
+*/
+int sqlite3Fts5ExprClonePhrase(
+  Fts5Expr *pExpr, 
+  int iPhrase, 
+  Fts5Expr **ppNew
+){
+  int rc = SQLITE_OK;             /* Return code */
+  Fts5ExprPhrase *pOrig = 0;      /* The phrase extracted from pExpr */
+  Fts5Expr *pNew = 0;             /* Expression to return via *ppNew */
+  TokenCtx sCtx = {0,0,0};        /* Context object for fts5ParseTokenize */
+  if( !pExpr || iPhrase<0 || iPhrase>=pExpr->nPhrase ){
+    rc = SQLITE_RANGE;
+  }else{
+    pOrig = pExpr->apExprPhrase[iPhrase];
+    pNew = (Fts5Expr*)sqlite3Fts5MallocZero(&rc, sizeof(Fts5Expr));
+  }
+  if( rc==SQLITE_OK ){
+    pNew->apExprPhrase = (Fts5ExprPhrase**)sqlite3Fts5MallocZero(&rc, 
+        sizeof(Fts5ExprPhrase*));
+  }
+  if( rc==SQLITE_OK ){
+    pNew->pRoot = (Fts5ExprNode*)sqlite3Fts5MallocZero(&rc, 
+        sizeof(Fts5ExprNode));
+  }
+  if( rc==SQLITE_OK ){
+    pNew->pRoot->pNear = (Fts5ExprNearset*)sqlite3Fts5MallocZero(&rc, 
+        sizeof(Fts5ExprNearset) + sizeof(Fts5ExprPhrase*));
+  }
+  if( rc==SQLITE_OK && ALWAYS(pOrig!=0) ){
+    Fts5Colset *pColsetOrig = pOrig->pNode->pNear->pColset;
+    if( pColsetOrig ){
+      sqlite3_int64 nByte;
+      Fts5Colset *pColset;
+      nByte = sizeof(Fts5Colset) + (pColsetOrig->nCol-1) * sizeof(int);
+      pColset = (Fts5Colset*)sqlite3Fts5MallocZero(&rc, nByte);
+      if( pColset ){ 
+        memcpy(pColset, pColsetOrig, (size_t)nByte);
+      }
+      pNew->pRoot->pNear->pColset = pColset;
+    }
+  }
+
+  if( rc==SQLITE_OK ){
+    if( pOrig->nTerm ){
+      int i;                          /* Used to iterate through phrase terms */
+      sCtx.pConfig = pExpr->pConfig;
+      for(i=0; rc==SQLITE_OK && i<pOrig->nTerm; i++){
+        int tflags = 0;
+        Fts5ExprTerm *p;
+        for(p=&pOrig->aTerm[i]; p && rc==SQLITE_OK; p=p->pSynonym){
+          rc = fts5ParseTokenize((void*)&sCtx,tflags,p->pTerm,p->nFullTerm,0,0);
+          tflags = FTS5_TOKEN_COLOCATED;
+        }
+        if( rc==SQLITE_OK ){
+          sCtx.pPhrase->aTerm[i].bPrefix = pOrig->aTerm[i].bPrefix;
+          sCtx.pPhrase->aTerm[i].bFirst = pOrig->aTerm[i].bFirst;
+        }
+      }
+    }else{
+      /* This happens when parsing a token or quoted phrase that contains
+      ** no token characters at all. (e.g ... MATCH '""'). */
+      sCtx.pPhrase = sqlite3Fts5MallocZero(&rc, sizeof(Fts5ExprPhrase));
+    }
+  }
+
+  if( rc==SQLITE_OK && ALWAYS(sCtx.pPhrase) ){
+    /* All the allocations succeeded. Put the expression object together. */
+    pNew->pIndex = pExpr->pIndex;
+    pNew->pConfig = pExpr->pConfig;
+    pNew->nPhrase = 1;
+    pNew->apExprPhrase[0] = sCtx.pPhrase;
+    pNew->pRoot->pNear->apPhrase[0] = sCtx.pPhrase;
+    pNew->pRoot->pNear->nPhrase = 1;
+    sCtx.pPhrase->pNode = pNew->pRoot;
+
+    if( pOrig->nTerm==1 
+     && pOrig->aTerm[0].pSynonym==0 
+     && pOrig->aTerm[0].bFirst==0 
+    ){
+      pNew->pRoot->eType = FTS5_TERM;
+      pNew->pRoot->xNext = fts5ExprNodeNext_TERM;
+    }else{
+      pNew->pRoot->eType = FTS5_STRING;
+      pNew->pRoot->xNext = fts5ExprNodeNext_STRING;
+    }
+  }else{
+    sqlite3Fts5ExprFree(pNew);
+    fts5ExprPhraseFree(sCtx.pPhrase);
+    pNew = 0;
+  }
+
+  *ppNew = pNew;
+  return rc;
+}
+
+
+/*
+** Token pTok has appeared in a MATCH expression where the NEAR operator
+** is expected. If token pTok does not contain "NEAR", store an error
+** in the pParse object.
+*/
+void sqlite3Fts5ParseNear(Fts5Parse *pParse, Fts5Token *pTok){
+  if( pTok->n!=4 || memcmp("NEAR", pTok->p, 4) ){
+    sqlite3Fts5ParseError(
+        pParse, "fts5: syntax error near \"%.*s\"", pTok->n, pTok->p
+    );
+  }
+}
+
+void sqlite3Fts5ParseSetDistance(
+  Fts5Parse *pParse, 
+  Fts5ExprNearset *pNear,
+  Fts5Token *p
+){
+  if( pNear ){
+    int nNear = 0;
+    int i;
+    if( p->n ){
+      for(i=0; i<p->n; i++){
+        char c = (char)p->p[i];
+        if( c<'0' || c>'9' ){
+          sqlite3Fts5ParseError(
+              pParse, "expected integer, got \"%.*s\"", p->n, p->p
+              );
+          return;
+        }
+        nNear = nNear * 10 + (p->p[i] - '0');
+      }
+    }else{
+      nNear = FTS5_DEFAULT_NEARDIST;
+    }
+    pNear->nNear = nNear;
+  }
+}
+
+/*
+** The second argument passed to this function may be NULL, or it may be
+** an existing Fts5Colset object. This function returns a pointer to
+** a new colset object containing the contents of (p) with new value column
+** number iCol appended. 
+**
+** If an OOM error occurs, store an error code in pParse and return NULL.
+** The old colset object (if any) is not freed in this case.
+*/
+static Fts5Colset *fts5ParseColset(
+  Fts5Parse *pParse,              /* Store SQLITE_NOMEM here if required */
+  Fts5Colset *p,                  /* Existing colset object */
+  int iCol                        /* New column to add to colset object */
+){
+  int nCol = p ? p->nCol : 0;     /* Num. columns already in colset object */
+  Fts5Colset *pNew;               /* New colset object to return */
+
+  assert( pParse->rc==SQLITE_OK );
+  assert( iCol>=0 && iCol<pParse->pConfig->nCol );
+
+  pNew = sqlite3_realloc64(p, sizeof(Fts5Colset) + sizeof(int)*nCol);
+  if( pNew==0 ){
+    pParse->rc = SQLITE_NOMEM;
+  }else{
+    int *aiCol = pNew->aiCol;
+    int i, j;
+    for(i=0; i<nCol; i++){
+      if( aiCol[i]==iCol ) return pNew;
+      if( aiCol[i]>iCol ) break;
+    }
+    for(j=nCol; j>i; j--){
+      aiCol[j] = aiCol[j-1];
+    }
+    aiCol[i] = iCol;
+    pNew->nCol = nCol+1;
+
+#ifndef NDEBUG
+    /* Check that the array is in order and contains no duplicate entries. */
+    for(i=1; i<pNew->nCol; i++) assert( pNew->aiCol[i]>pNew->aiCol[i-1] );
+#endif
+  }
+
+  return pNew;
+}
+
+/*
+** Allocate and return an Fts5Colset object specifying the inverse of
+** the colset passed as the second argument. Free the colset passed
+** as the second argument before returning.
+*/
+Fts5Colset *sqlite3Fts5ParseColsetInvert(Fts5Parse *pParse, Fts5Colset *p){
+  Fts5Colset *pRet;
+  int nCol = pParse->pConfig->nCol;
+
+  pRet = (Fts5Colset*)sqlite3Fts5MallocZero(&pParse->rc, 
+      sizeof(Fts5Colset) + sizeof(int)*nCol
+  );
+  if( pRet ){
+    int i;
+    int iOld = 0;
+    for(i=0; i<nCol; i++){
+      if( iOld>=p->nCol || p->aiCol[iOld]!=i ){
+        pRet->aiCol[pRet->nCol++] = i;
+      }else{
+        iOld++;
+      }
+    }
+  }
+
+  sqlite3_free(p);
+  return pRet;
+}
+
+Fts5Colset *sqlite3Fts5ParseColset(
+  Fts5Parse *pParse,              /* Store SQLITE_NOMEM here if required */
+  Fts5Colset *pColset,            /* Existing colset object */
+  Fts5Token *p
+){
+  Fts5Colset *pRet = 0;
+  int iCol;
+  char *z;                        /* Dequoted copy of token p */
+
+  z = sqlite3Fts5Strndup(&pParse->rc, p->p, p->n);
+  if( pParse->rc==SQLITE_OK ){
+    Fts5Config *pConfig = pParse->pConfig;
+    sqlite3Fts5Dequote(z);
+    for(iCol=0; iCol<pConfig->nCol; iCol++){
+      if( 0==sqlite3_stricmp(pConfig->azCol[iCol], z) ) break;
+    }
+    if( iCol==pConfig->nCol ){
+      sqlite3Fts5ParseError(pParse, "no such column: %s", z);
+    }else{
+      pRet = fts5ParseColset(pParse, pColset, iCol);
+    }
+    sqlite3_free(z);
+  }
+
+  if( pRet==0 ){
+    assert( pParse->rc!=SQLITE_OK );
+    sqlite3_free(pColset);
+  }
+
+  return pRet;
+}
+
+/*
+** If argument pOrig is NULL, or if (*pRc) is set to anything other than
+** SQLITE_OK when this function is called, NULL is returned. 
+**
+** Otherwise, a copy of (*pOrig) is made into memory obtained from
+** sqlite3Fts5MallocZero() and a pointer to it returned. If the allocation
+** fails, (*pRc) is set to SQLITE_NOMEM and NULL is returned.
+*/
+static Fts5Colset *fts5CloneColset(int *pRc, Fts5Colset *pOrig){
+  Fts5Colset *pRet;
+  if( pOrig ){
+    sqlite3_int64 nByte = sizeof(Fts5Colset) + (pOrig->nCol-1) * sizeof(int);
+    pRet = (Fts5Colset*)sqlite3Fts5MallocZero(pRc, nByte);
+    if( pRet ){ 
+      memcpy(pRet, pOrig, (size_t)nByte);
+    }
+  }else{
+    pRet = 0;
+  }
+  return pRet;
+}
+
+/*
+** Remove from colset pColset any columns that are not also in colset pMerge.
+*/
+static void fts5MergeColset(Fts5Colset *pColset, Fts5Colset *pMerge){
+  int iIn = 0;          /* Next input in pColset */
+  int iMerge = 0;       /* Next input in pMerge */
+  int iOut = 0;         /* Next output slot in pColset */
+
+  while( iIn<pColset->nCol && iMerge<pMerge->nCol ){
+    int iDiff = pColset->aiCol[iIn] - pMerge->aiCol[iMerge];
+    if( iDiff==0 ){
+      pColset->aiCol[iOut++] = pMerge->aiCol[iMerge];
+      iMerge++;
+      iIn++;
+    }else if( iDiff>0 ){
+      iMerge++;
+    }else{
+      iIn++;
+    }
+  }
+  pColset->nCol = iOut;
+}
+
+/*
+** Recursively apply colset pColset to expression node pNode and all of
+** its decendents. If (*ppFree) is not NULL, it contains a spare copy
+** of pColset. This function may use the spare copy and set (*ppFree) to
+** zero, or it may create copies of pColset using fts5CloneColset().
+*/
+static void fts5ParseSetColset(
+  Fts5Parse *pParse, 
+  Fts5ExprNode *pNode, 
+  Fts5Colset *pColset,
+  Fts5Colset **ppFree
+){
+  if( pParse->rc==SQLITE_OK ){
+    assert( pNode->eType==FTS5_TERM || pNode->eType==FTS5_STRING 
+         || pNode->eType==FTS5_AND  || pNode->eType==FTS5_OR
+         || pNode->eType==FTS5_NOT  || pNode->eType==FTS5_EOF
+    );
+    if( pNode->eType==FTS5_STRING || pNode->eType==FTS5_TERM ){
+      Fts5ExprNearset *pNear = pNode->pNear;
+      if( pNear->pColset ){
+        fts5MergeColset(pNear->pColset, pColset);
+        if( pNear->pColset->nCol==0 ){
+          pNode->eType = FTS5_EOF;
+          pNode->xNext = 0;
+        }
+      }else if( *ppFree ){
+        pNear->pColset = pColset;
+        *ppFree = 0;
+      }else{
+        pNear->pColset = fts5CloneColset(&pParse->rc, pColset);
+      }
+    }else{
+      int i;
+      assert( pNode->eType!=FTS5_EOF || pNode->nChild==0 );
+      for(i=0; i<pNode->nChild; i++){
+        fts5ParseSetColset(pParse, pNode->apChild[i], pColset, ppFree);
+      }
+    }
+  }
+}
+
+/*
+** Apply colset pColset to expression node pExpr and all of its descendents.
+*/
+void sqlite3Fts5ParseSetColset(
+  Fts5Parse *pParse, 
+  Fts5ExprNode *pExpr, 
+  Fts5Colset *pColset 
+){
+  Fts5Colset *pFree = pColset;
+  if( pParse->pConfig->eDetail==FTS5_DETAIL_NONE ){
+    sqlite3Fts5ParseError(pParse, 
+        "fts5: column queries are not supported (detail=none)"
+    );
+  }else{
+    fts5ParseSetColset(pParse, pExpr, pColset, &pFree);
+  }
+  sqlite3_free(pFree);
+}
+
+static void fts5ExprAssignXNext(Fts5ExprNode *pNode){
+  switch( pNode->eType ){
+    case FTS5_STRING: {
+      Fts5ExprNearset *pNear = pNode->pNear;
+      if( pNear->nPhrase==1 && pNear->apPhrase[0]->nTerm==1 
+       && pNear->apPhrase[0]->aTerm[0].pSynonym==0
+       && pNear->apPhrase[0]->aTerm[0].bFirst==0
+      ){
+        pNode->eType = FTS5_TERM;
+        pNode->xNext = fts5ExprNodeNext_TERM;
+      }else{
+        pNode->xNext = fts5ExprNodeNext_STRING;
+      }
+      break;
+    };
+
+    case FTS5_OR: {
+      pNode->xNext = fts5ExprNodeNext_OR;
+      break;
+    };
+
+    case FTS5_AND: {
+      pNode->xNext = fts5ExprNodeNext_AND;
+      break;
+    };
+
+    default: assert( pNode->eType==FTS5_NOT ); {
+      pNode->xNext = fts5ExprNodeNext_NOT;
+      break;
+    };
+  }
+}
+
+/*
+** Add pSub as a child of p.
+*/
+static void fts5ExprAddChildren(Fts5ExprNode *p, Fts5ExprNode *pSub){
+  int ii = p->nChild;
+  if( p->eType!=FTS5_NOT && pSub->eType==p->eType ){
+    int nByte = sizeof(Fts5ExprNode*) * pSub->nChild;
+    memcpy(&p->apChild[p->nChild], pSub->apChild, nByte);
+    p->nChild += pSub->nChild;
+    sqlite3_free(pSub);
+  }else{
+    p->apChild[p->nChild++] = pSub;
+  }
+  for( ; ii<p->nChild; ii++){
+    p->iHeight = MAX(p->iHeight, p->apChild[ii]->iHeight + 1);
+  }
+}
+
+/*
+** This function is used when parsing LIKE or GLOB patterns against
+** trigram indexes that specify either detail=column or detail=none.
+** It converts a phrase:
+**
+**     abc + def + ghi
+**
+** into an AND tree:
+**
+**     abc AND def AND ghi
+*/
+static Fts5ExprNode *fts5ParsePhraseToAnd(
+  Fts5Parse *pParse, 
+  Fts5ExprNearset *pNear
+){
+  int nTerm = pNear->apPhrase[0]->nTerm;
+  int ii;
+  int nByte;
+  Fts5ExprNode *pRet;
+
+  assert( pNear->nPhrase==1 );
+  assert( pParse->bPhraseToAnd );
+
+  nByte = sizeof(Fts5ExprNode) + nTerm*sizeof(Fts5ExprNode*);
+  pRet = (Fts5ExprNode*)sqlite3Fts5MallocZero(&pParse->rc, nByte);
+  if( pRet ){
+    pRet->eType = FTS5_AND;
+    pRet->nChild = nTerm;
+    pRet->iHeight = 1;
+    fts5ExprAssignXNext(pRet);
+    pParse->nPhrase--;
+    for(ii=0; ii<nTerm; ii++){
+      Fts5ExprPhrase *pPhrase = (Fts5ExprPhrase*)sqlite3Fts5MallocZero(
+          &pParse->rc, sizeof(Fts5ExprPhrase)
+      );
+      if( pPhrase ){
+        if( parseGrowPhraseArray(pParse) ){
+          fts5ExprPhraseFree(pPhrase);
+        }else{
+          Fts5ExprTerm *p = &pNear->apPhrase[0]->aTerm[ii];
+          Fts5ExprTerm *pTo = &pPhrase->aTerm[0];
+          pParse->apPhrase[pParse->nPhrase++] = pPhrase;
+          pPhrase->nTerm = 1;
+          pTo->pTerm = sqlite3Fts5Strndup(&pParse->rc, p->pTerm, p->nFullTerm);
+          pTo->nQueryTerm = p->nQueryTerm;
+          pTo->nFullTerm = p->nFullTerm;
+          pRet->apChild[ii] = sqlite3Fts5ParseNode(pParse, FTS5_STRING, 
+              0, 0, sqlite3Fts5ParseNearset(pParse, 0, pPhrase)
+          );
+        }
+      }
+    }
+  
+    if( pParse->rc ){
+      sqlite3Fts5ParseNodeFree(pRet);
+      pRet = 0;
+    }else{
+      sqlite3Fts5ParseNearsetFree(pNear);
+    }
+  }
+
+  return pRet;
+}
+
+/*
+** Allocate and return a new expression object. If anything goes wrong (i.e.
+** OOM error), leave an error code in pParse and return NULL.
+*/
+Fts5ExprNode *sqlite3Fts5ParseNode(
+  Fts5Parse *pParse,              /* Parse context */
+  int eType,                      /* FTS5_STRING, AND, OR or NOT */
+  Fts5ExprNode *pLeft,            /* Left hand child expression */
+  Fts5ExprNode *pRight,           /* Right hand child expression */
+  Fts5ExprNearset *pNear          /* For STRING expressions, the near cluster */
+){
+  Fts5ExprNode *pRet = 0;
+
+  if( pParse->rc==SQLITE_OK ){
+    int nChild = 0;               /* Number of children of returned node */
+    sqlite3_int64 nByte;          /* Bytes of space to allocate for this node */
+ 
+    assert( (eType!=FTS5_STRING && !pNear)
+         || (eType==FTS5_STRING && !pLeft && !pRight)
+    );
+    if( eType==FTS5_STRING && pNear==0 ) return 0;
+    if( eType!=FTS5_STRING && pLeft==0 ) return pRight;
+    if( eType!=FTS5_STRING && pRight==0 ) return pLeft;
+
+    if( eType==FTS5_STRING 
+     && pParse->bPhraseToAnd 
+     && pNear->apPhrase[0]->nTerm>1
+    ){
+      pRet = fts5ParsePhraseToAnd(pParse, pNear);
+    }else{
+      if( eType==FTS5_NOT ){
+        nChild = 2;
+      }else if( eType==FTS5_AND || eType==FTS5_OR ){
+        nChild = 2;
+        if( pLeft->eType==eType ) nChild += pLeft->nChild-1;
+        if( pRight->eType==eType ) nChild += pRight->nChild-1;
+      }
+
+      nByte = sizeof(Fts5ExprNode) + sizeof(Fts5ExprNode*)*(nChild-1);
+      pRet = (Fts5ExprNode*)sqlite3Fts5MallocZero(&pParse->rc, nByte);
+
+      if( pRet ){
+        pRet->eType = eType;
+        pRet->pNear = pNear;
+        fts5ExprAssignXNext(pRet);
+        if( eType==FTS5_STRING ){
+          int iPhrase;
+          for(iPhrase=0; iPhrase<pNear->nPhrase; iPhrase++){
+            pNear->apPhrase[iPhrase]->pNode = pRet;
+            if( pNear->apPhrase[iPhrase]->nTerm==0 ){
+              pRet->xNext = 0;
+              pRet->eType = FTS5_EOF;
+            }
+          }
+
+          if( pParse->pConfig->eDetail!=FTS5_DETAIL_FULL ){
+            Fts5ExprPhrase *pPhrase = pNear->apPhrase[0];
+            if( pNear->nPhrase!=1 
+                || pPhrase->nTerm>1
+                || (pPhrase->nTerm>0 && pPhrase->aTerm[0].bFirst)
+              ){
+              sqlite3Fts5ParseError(pParse, 
+                  "fts5: %s queries are not supported (detail!=full)", 
+                  pNear->nPhrase==1 ? "phrase": "NEAR"
+              );
+              sqlite3Fts5ParseNodeFree(pRet);
+              pRet = 0;
+              pNear = 0;
+              assert( pLeft==0 && pRight==0 );
+            }
+          }
+        }else{
+          assert( pNear==0 );
+          fts5ExprAddChildren(pRet, pLeft);
+          fts5ExprAddChildren(pRet, pRight);
+          pLeft = pRight = 0;
+          if( pRet->iHeight>SQLITE_FTS5_MAX_EXPR_DEPTH ){
+            sqlite3Fts5ParseError(pParse, 
+                "fts5 expression tree is too large (maximum depth %d)", 
+                SQLITE_FTS5_MAX_EXPR_DEPTH
+            );
+            sqlite3Fts5ParseNodeFree(pRet);
+            pRet = 0;
+          }
+        }
+      }
+    }
+  }
+
+  if( pRet==0 ){
+    assert( pParse->rc!=SQLITE_OK );
+    sqlite3Fts5ParseNodeFree(pLeft);
+    sqlite3Fts5ParseNodeFree(pRight);
+    sqlite3Fts5ParseNearsetFree(pNear);
+  }
+  return pRet;
+}
+
+Fts5ExprNode *sqlite3Fts5ParseImplicitAnd(
+  Fts5Parse *pParse,              /* Parse context */
+  Fts5ExprNode *pLeft,            /* Left hand child expression */
+  Fts5ExprNode *pRight            /* Right hand child expression */
+){
+  Fts5ExprNode *pRet = 0;
+  Fts5ExprNode *pPrev;
+
+  if( pParse->rc ){
+    sqlite3Fts5ParseNodeFree(pLeft);
+    sqlite3Fts5ParseNodeFree(pRight);
+  }else{
+
+    assert( pLeft->eType==FTS5_STRING 
+        || pLeft->eType==FTS5_TERM
+        || pLeft->eType==FTS5_EOF
+        || pLeft->eType==FTS5_AND
+    );
+    assert( pRight->eType==FTS5_STRING 
+        || pRight->eType==FTS5_TERM 
+        || pRight->eType==FTS5_EOF 
+        || (pRight->eType==FTS5_AND && pParse->bPhraseToAnd) 
+    );
+
+    if( pLeft->eType==FTS5_AND ){
+      pPrev = pLeft->apChild[pLeft->nChild-1];
+    }else{
+      pPrev = pLeft;
+    }
+    assert( pPrev->eType==FTS5_STRING 
+        || pPrev->eType==FTS5_TERM 
+        || pPrev->eType==FTS5_EOF 
+        );
+
+    if( pRight->eType==FTS5_EOF ){
+      assert( pParse->apPhrase!=0 );
+      assert( pParse->nPhrase>0 );
+      assert( pParse->apPhrase[pParse->nPhrase-1]==pRight->pNear->apPhrase[0] );
+      sqlite3Fts5ParseNodeFree(pRight);
+      pRet = pLeft;
+      pParse->nPhrase--;
+    }
+    else if( pPrev->eType==FTS5_EOF ){
+      Fts5ExprPhrase **ap;
+
+      if( pPrev==pLeft ){
+        pRet = pRight;
+      }else{
+        pLeft->apChild[pLeft->nChild-1] = pRight;
+        pRet = pLeft;
+      }
+
+      ap = &pParse->apPhrase[pParse->nPhrase-1-pRight->pNear->nPhrase];
+      assert( ap[0]==pPrev->pNear->apPhrase[0] );
+      memmove(ap, &ap[1], sizeof(Fts5ExprPhrase*)*pRight->pNear->nPhrase);
+      pParse->nPhrase--;
+
+      sqlite3Fts5ParseNodeFree(pPrev);
+    }
+    else{
+      pRet = sqlite3Fts5ParseNode(pParse, FTS5_AND, pLeft, pRight, 0);
+    }
+  }
+
+  return pRet;
+}
+
+#if defined(SQLITE_TEST) || defined(SQLITE_FTS5_DEBUG)
+static char *fts5ExprTermPrint(Fts5ExprTerm *pTerm){
+  sqlite3_int64 nByte = 0;
+  Fts5ExprTerm *p;
+  char *zQuoted;
+
+  /* Determine the maximum amount of space required. */
+  for(p=pTerm; p; p=p->pSynonym){
+    nByte += pTerm->nQueryTerm * 2 + 3 + 2;
+  }
+  zQuoted = sqlite3_malloc64(nByte);
+
+  if( zQuoted ){
+    int i = 0;
+    for(p=pTerm; p; p=p->pSynonym){
+      char *zIn = p->pTerm;
+      char *zEnd = &zIn[p->nQueryTerm];
+      zQuoted[i++] = '"';
+      while( zIn<zEnd ){
+        if( *zIn=='"' ) zQuoted[i++] = '"';
+        zQuoted[i++] = *zIn++;
+      }
+      zQuoted[i++] = '"';
+      if( p->pSynonym ) zQuoted[i++] = '|';
+    }
+    if( pTerm->bPrefix ){
+      zQuoted[i++] = ' ';
+      zQuoted[i++] = '*';
+    }
+    zQuoted[i++] = '\0';
+  }
+  return zQuoted;
+}
+
+static char *fts5PrintfAppend(char *zApp, const char *zFmt, ...){
+  char *zNew;
+  va_list ap;
+  va_start(ap, zFmt);
+  zNew = sqlite3_vmprintf(zFmt, ap);
+  va_end(ap);
+  if( zApp && zNew ){
+    char *zNew2 = sqlite3_mprintf("%s%s", zApp, zNew);
+    sqlite3_free(zNew);
+    zNew = zNew2;
+  }
+  sqlite3_free(zApp);
+  return zNew;
+}
+
+/*
+** Compose a tcl-readable representation of expression pExpr. Return a 
+** pointer to a buffer containing that representation. It is the 
+** responsibility of the caller to at some point free the buffer using 
+** sqlite3_free().
+*/
+static char *fts5ExprPrintTcl(
+  Fts5Config *pConfig, 
+  const char *zNearsetCmd,
+  Fts5ExprNode *pExpr
+){
+  char *zRet = 0;
+  if( pExpr->eType==FTS5_STRING || pExpr->eType==FTS5_TERM ){
+    Fts5ExprNearset *pNear = pExpr->pNear;
+    int i; 
+    int iTerm;
+
+    zRet = fts5PrintfAppend(zRet, "%s ", zNearsetCmd);
+    if( zRet==0 ) return 0;
+    if( pNear->pColset ){
+      int *aiCol = pNear->pColset->aiCol;
+      int nCol = pNear->pColset->nCol;
+      if( nCol==1 ){
+        zRet = fts5PrintfAppend(zRet, "-col %d ", aiCol[0]);
+      }else{
+        zRet = fts5PrintfAppend(zRet, "-col {%d", aiCol[0]);
+        for(i=1; i<pNear->pColset->nCol; i++){
+          zRet = fts5PrintfAppend(zRet, " %d", aiCol[i]);
+        }
+        zRet = fts5PrintfAppend(zRet, "} ");
+      }
+      if( zRet==0 ) return 0;
+    }
+
+    if( pNear->nPhrase>1 ){
+      zRet = fts5PrintfAppend(zRet, "-near %d ", pNear->nNear);
+      if( zRet==0 ) return 0;
+    }
+
+    zRet = fts5PrintfAppend(zRet, "--");
+    if( zRet==0 ) return 0;
+
+    for(i=0; i<pNear->nPhrase; i++){
+      Fts5ExprPhrase *pPhrase = pNear->apPhrase[i];
+
+      zRet = fts5PrintfAppend(zRet, " {");
+      for(iTerm=0; zRet && iTerm<pPhrase->nTerm; iTerm++){
+        Fts5ExprTerm *p = &pPhrase->aTerm[iTerm];
+        zRet = fts5PrintfAppend(zRet, "%s%.*s", iTerm==0?"":" ", 
+            p->nQueryTerm, p->pTerm
+        );
+        if( pPhrase->aTerm[iTerm].bPrefix ){
+          zRet = fts5PrintfAppend(zRet, "*");
+        }
+      }
+
+      if( zRet ) zRet = fts5PrintfAppend(zRet, "}");
+      if( zRet==0 ) return 0;
+    }
+
+  }else if( pExpr->eType==0 ){
+    zRet = sqlite3_mprintf("{}");
+  }else{
+    char const *zOp = 0;
+    int i;
+    switch( pExpr->eType ){
+      case FTS5_AND: zOp = "AND"; break;
+      case FTS5_NOT: zOp = "NOT"; break;
+      default: 
+        assert( pExpr->eType==FTS5_OR );
+        zOp = "OR"; 
+        break;
+    }
+
+    zRet = sqlite3_mprintf("%s", zOp);
+    for(i=0; zRet && i<pExpr->nChild; i++){
+      char *z = fts5ExprPrintTcl(pConfig, zNearsetCmd, pExpr->apChild[i]);
+      if( !z ){
+        sqlite3_free(zRet);
+        zRet = 0;
+      }else{
+        zRet = fts5PrintfAppend(zRet, " [%z]", z);
+      }
+    }
+  }
+
+  return zRet;
+}
+
+static char *fts5ExprPrint(Fts5Config *pConfig, Fts5ExprNode *pExpr){
+  char *zRet = 0;
+  if( pExpr->eType==0 ){
+    return sqlite3_mprintf("\"\"");
+  }else
+  if( pExpr->eType==FTS5_STRING || pExpr->eType==FTS5_TERM ){
+    Fts5ExprNearset *pNear = pExpr->pNear;
+    int i; 
+    int iTerm;
+
+    if( pNear->pColset ){
+      int ii;
+      Fts5Colset *pColset = pNear->pColset;
+      if( pColset->nCol>1 ) zRet = fts5PrintfAppend(zRet, "{");
+      for(ii=0; ii<pColset->nCol; ii++){
+        zRet = fts5PrintfAppend(zRet, "%s%s", 
+            pConfig->azCol[pColset->aiCol[ii]], ii==pColset->nCol-1 ? "" : " "
+        );
+      }
+      if( zRet ){
+        zRet = fts5PrintfAppend(zRet, "%s : ", pColset->nCol>1 ? "}" : "");
+      }
+      if( zRet==0 ) return 0;
+    }
+
+    if( pNear->nPhrase>1 ){
+      zRet = fts5PrintfAppend(zRet, "NEAR(");
+      if( zRet==0 ) return 0;
+    }
+
+    for(i=0; i<pNear->nPhrase; i++){
+      Fts5ExprPhrase *pPhrase = pNear->apPhrase[i];
+      if( i!=0 ){
+        zRet = fts5PrintfAppend(zRet, " ");
+        if( zRet==0 ) return 0;
+      }
+      for(iTerm=0; iTerm<pPhrase->nTerm; iTerm++){
+        char *zTerm = fts5ExprTermPrint(&pPhrase->aTerm[iTerm]);
+        if( zTerm ){
+          zRet = fts5PrintfAppend(zRet, "%s%s", iTerm==0?"":" + ", zTerm);
+          sqlite3_free(zTerm);
+        }
+        if( zTerm==0 || zRet==0 ){
+          sqlite3_free(zRet);
+          return 0;
+        }
+      }
+    }
+
+    if( pNear->nPhrase>1 ){
+      zRet = fts5PrintfAppend(zRet, ", %d)", pNear->nNear);
+      if( zRet==0 ) return 0;
+    }
+
+  }else{
+    char const *zOp = 0;
+    int i;
+
+    switch( pExpr->eType ){
+      case FTS5_AND: zOp = " AND "; break;
+      case FTS5_NOT: zOp = " NOT "; break;
+      default:  
+        assert( pExpr->eType==FTS5_OR );
+        zOp = " OR "; 
+        break;
+    }
+
+    for(i=0; i<pExpr->nChild; i++){
+      char *z = fts5ExprPrint(pConfig, pExpr->apChild[i]);
+      if( z==0 ){
+        sqlite3_free(zRet);
+        zRet = 0;
+      }else{
+        int e = pExpr->apChild[i]->eType;
+        int b = (e!=FTS5_STRING && e!=FTS5_TERM && e!=FTS5_EOF);
+        zRet = fts5PrintfAppend(zRet, "%s%s%z%s", 
+            (i==0 ? "" : zOp),
+            (b?"(":""), z, (b?")":"")
+        );
+      }
+      if( zRet==0 ) break;
+    }
+  }
+
+  return zRet;
+}
+
+/*
+** The implementation of user-defined scalar functions fts5_expr() (bTcl==0)
+** and fts5_expr_tcl() (bTcl!=0).
+*/
+static void fts5ExprFunction(
+  sqlite3_context *pCtx,          /* Function call context */
+  int nArg,                       /* Number of args */
+  sqlite3_value **apVal,          /* Function arguments */
+  int bTcl
+){
+  Fts5Global *pGlobal = (Fts5Global*)sqlite3_user_data(pCtx);
+  sqlite3 *db = sqlite3_context_db_handle(pCtx);
+  const char *zExpr = 0;
+  char *zErr = 0;
+  Fts5Expr *pExpr = 0;
+  int rc;
+  int i;
+
+  const char **azConfig;          /* Array of arguments for Fts5Config */
+  const char *zNearsetCmd = "nearset";
+  int nConfig;                    /* Size of azConfig[] */
+  Fts5Config *pConfig = 0;
+  int iArg = 1;
+
+  if( nArg<1 ){
+    zErr = sqlite3_mprintf("wrong number of arguments to function %s",
+        bTcl ? "fts5_expr_tcl" : "fts5_expr"
+    );
+    sqlite3_result_error(pCtx, zErr, -1);
+    sqlite3_free(zErr);
+    return;
+  }
+
+  if( bTcl && nArg>1 ){
+    zNearsetCmd = (const char*)sqlite3_value_text(apVal[1]);
+    iArg = 2;
+  }
+
+  nConfig = 3 + (nArg-iArg);
+  azConfig = (const char**)sqlite3_malloc64(sizeof(char*) * nConfig);
+  if( azConfig==0 ){
+    sqlite3_result_error_nomem(pCtx);
+    return;
+  }
+  azConfig[0] = 0;
+  azConfig[1] = "main";
+  azConfig[2] = "tbl";
+  for(i=3; iArg<nArg; iArg++){
+    const char *z = (const char*)sqlite3_value_text(apVal[iArg]);
+    azConfig[i++] = (z ? z : "");
+  }
+
+  zExpr = (const char*)sqlite3_value_text(apVal[0]);
+  if( zExpr==0 ) zExpr = "";
+
+  rc = sqlite3Fts5ConfigParse(pGlobal, db, nConfig, azConfig, &pConfig, &zErr);
+  if( rc==SQLITE_OK ){
+    rc = sqlite3Fts5ExprNew(pConfig, 0, pConfig->nCol, zExpr, &pExpr, &zErr);
+  }
+  if( rc==SQLITE_OK ){
+    char *zText;
+    if( pExpr->pRoot->xNext==0 ){
+      zText = sqlite3_mprintf("");
+    }else if( bTcl ){
+      zText = fts5ExprPrintTcl(pConfig, zNearsetCmd, pExpr->pRoot);
+    }else{
+      zText = fts5ExprPrint(pConfig, pExpr->pRoot);
+    }
+    if( zText==0 ){
+      rc = SQLITE_NOMEM;
+    }else{
+      sqlite3_result_text(pCtx, zText, -1, SQLITE_TRANSIENT);
+      sqlite3_free(zText);
+    }
+  }
+
+  if( rc!=SQLITE_OK ){
+    if( zErr ){
+      sqlite3_result_error(pCtx, zErr, -1);
+      sqlite3_free(zErr);
+    }else{
+      sqlite3_result_error_code(pCtx, rc);
+    }
+  }
+  sqlite3_free((void *)azConfig);
+  sqlite3Fts5ConfigFree(pConfig);
+  sqlite3Fts5ExprFree(pExpr);
+}
+
+static void fts5ExprFunctionHr(
+  sqlite3_context *pCtx,          /* Function call context */
+  int nArg,                       /* Number of args */
+  sqlite3_value **apVal           /* Function arguments */
+){
+  fts5ExprFunction(pCtx, nArg, apVal, 0);
+}
+static void fts5ExprFunctionTcl(
+  sqlite3_context *pCtx,          /* Function call context */
+  int nArg,                       /* Number of args */
+  sqlite3_value **apVal           /* Function arguments */
+){
+  fts5ExprFunction(pCtx, nArg, apVal, 1);
+}
+
+/*
+** The implementation of an SQLite user-defined-function that accepts a
+** single integer as an argument. If the integer is an alpha-numeric 
+** unicode code point, 1 is returned. Otherwise 0.
+*/
+static void fts5ExprIsAlnum(
+  sqlite3_context *pCtx,          /* Function call context */
+  int nArg,                       /* Number of args */
+  sqlite3_value **apVal           /* Function arguments */
+){
+  int iCode;
+  u8 aArr[32];
+  if( nArg!=1 ){
+    sqlite3_result_error(pCtx, 
+        "wrong number of arguments to function fts5_isalnum", -1
+    );
+    return;
+  }
+  memset(aArr, 0, sizeof(aArr));
+  sqlite3Fts5UnicodeCatParse("L*", aArr);
+  sqlite3Fts5UnicodeCatParse("N*", aArr);
+  sqlite3Fts5UnicodeCatParse("Co", aArr);
+  iCode = sqlite3_value_int(apVal[0]);
+  sqlite3_result_int(pCtx, aArr[sqlite3Fts5UnicodeCategory((u32)iCode)]);
+}
+
+static void fts5ExprFold(
+  sqlite3_context *pCtx,          /* Function call context */
+  int nArg,                       /* Number of args */
+  sqlite3_value **apVal           /* Function arguments */
+){
+  if( nArg!=1 && nArg!=2 ){
+    sqlite3_result_error(pCtx, 
+        "wrong number of arguments to function fts5_fold", -1
+    );
+  }else{
+    int iCode;
+    int bRemoveDiacritics = 0;
+    iCode = sqlite3_value_int(apVal[0]);
+    if( nArg==2 ) bRemoveDiacritics = sqlite3_value_int(apVal[1]);
+    sqlite3_result_int(pCtx, sqlite3Fts5UnicodeFold(iCode, bRemoveDiacritics));
+  }
+}
+#endif /* if SQLITE_TEST || SQLITE_FTS5_DEBUG */
+
+/*
+** This is called during initialization to register the fts5_expr() scalar
+** UDF with the SQLite handle passed as the only argument.
+*/
+int sqlite3Fts5ExprInit(Fts5Global *pGlobal, sqlite3 *db){
+#if defined(SQLITE_TEST) || defined(SQLITE_FTS5_DEBUG)
+  struct Fts5ExprFunc {
+    const char *z;
+    void (*x)(sqlite3_context*,int,sqlite3_value**);
+  } aFunc[] = {
+    { "fts5_expr",     fts5ExprFunctionHr },
+    { "fts5_expr_tcl", fts5ExprFunctionTcl },
+    { "fts5_isalnum",  fts5ExprIsAlnum },
+    { "fts5_fold",     fts5ExprFold },
+  };
+  int i;
+  int rc = SQLITE_OK;
+  void *pCtx = (void*)pGlobal;
+
+  for(i=0; rc==SQLITE_OK && i<ArraySize(aFunc); i++){
+    struct Fts5ExprFunc *p = &aFunc[i];
+    rc = sqlite3_create_function(db, p->z, -1, SQLITE_UTF8, pCtx, p->x, 0, 0);
+  }
+#else
+  int rc = SQLITE_OK;
+  UNUSED_PARAM2(pGlobal,db);
+#endif
+
+  /* Avoid warnings indicating that sqlite3Fts5ParserTrace() and
+  ** sqlite3Fts5ParserFallback() are unused */
+#ifndef NDEBUG
+  (void)sqlite3Fts5ParserTrace;
+#endif
+  (void)sqlite3Fts5ParserFallback;
+
+  return rc;
+}
+
+/*
+** Return the number of phrases in expression pExpr.
+*/
+int sqlite3Fts5ExprPhraseCount(Fts5Expr *pExpr){
+  return (pExpr ? pExpr->nPhrase : 0);
+}
+
+/*
+** Return the number of terms in the iPhrase'th phrase in pExpr.
+*/
+int sqlite3Fts5ExprPhraseSize(Fts5Expr *pExpr, int iPhrase){
+  if( iPhrase<0 || iPhrase>=pExpr->nPhrase ) return 0;
+  return pExpr->apExprPhrase[iPhrase]->nTerm;
+}
+
+/*
+** This function is used to access the current position list for phrase
+** iPhrase.
+*/
+int sqlite3Fts5ExprPoslist(Fts5Expr *pExpr, int iPhrase, const u8 **pa){
+  int nRet;
+  Fts5ExprPhrase *pPhrase = pExpr->apExprPhrase[iPhrase];
+  Fts5ExprNode *pNode = pPhrase->pNode;
+  if( pNode->bEof==0 && pNode->iRowid==pExpr->pRoot->iRowid ){
+    *pa = pPhrase->poslist.p;
+    nRet = pPhrase->poslist.n;
+  }else{
+    *pa = 0;
+    nRet = 0;
+  }
+  return nRet;
+}
+
+struct Fts5PoslistPopulator {
+  Fts5PoslistWriter writer;
+  int bOk;                        /* True if ok to populate */
+  int bMiss;
+};
+
+/*
+** Clear the position lists associated with all phrases in the expression
+** passed as the first argument. Argument bLive is true if the expression
+** might be pointing to a real entry, otherwise it has just been reset.
+**
+** At present this function is only used for detail=col and detail=none
+** fts5 tables. This implies that all phrases must be at most 1 token
+** in size, as phrase matches are not supported without detail=full.
+*/
+Fts5PoslistPopulator *sqlite3Fts5ExprClearPoslists(Fts5Expr *pExpr, int bLive){
+  Fts5PoslistPopulator *pRet;
+  pRet = sqlite3_malloc64(sizeof(Fts5PoslistPopulator)*pExpr->nPhrase);
+  if( pRet ){
+    int i;
+    memset(pRet, 0, sizeof(Fts5PoslistPopulator)*pExpr->nPhrase);
+    for(i=0; i<pExpr->nPhrase; i++){
+      Fts5Buffer *pBuf = &pExpr->apExprPhrase[i]->poslist;
+      Fts5ExprNode *pNode = pExpr->apExprPhrase[i]->pNode;
+      assert( pExpr->apExprPhrase[i]->nTerm<=1 );
+      if( bLive && 
+          (pBuf->n==0 || pNode->iRowid!=pExpr->pRoot->iRowid || pNode->bEof)
+      ){
+        pRet[i].bMiss = 1;
+      }else{
+        pBuf->n = 0;
+      }
+    }
+  }
+  return pRet;
+}
+
+struct Fts5ExprCtx {
+  Fts5Expr *pExpr;
+  Fts5PoslistPopulator *aPopulator;
+  i64 iOff;
+};
+typedef struct Fts5ExprCtx Fts5ExprCtx;
+
+/*
+** TODO: Make this more efficient!
+*/
+static int fts5ExprColsetTest(Fts5Colset *pColset, int iCol){
+  int i;
+  for(i=0; i<pColset->nCol; i++){
+    if( pColset->aiCol[i]==iCol ) return 1;
+  }
+  return 0;
+}
+
+/*
+** pToken is a buffer nToken bytes in size that may or may not contain
+** an embedded 0x00 byte. If it does, return the number of bytes in
+** the buffer before the 0x00. If it does not, return nToken.
+*/
+static int fts5QueryTerm(const char *pToken, int nToken){
+  int ii;
+  for(ii=0; ii<nToken && pToken[ii]; ii++){}
+  return ii;
+}
+
+static int fts5ExprPopulatePoslistsCb(
+  void *pCtx,                /* Copy of 2nd argument to xTokenize() */
+  int tflags,                /* Mask of FTS5_TOKEN_* flags */
+  const char *pToken,        /* Pointer to buffer containing token */
+  int nToken,                /* Size of token in bytes */
+  int iUnused1,              /* Byte offset of token within input text */
+  int iUnused2               /* Byte offset of end of token within input text */
+){
+  Fts5ExprCtx *p = (Fts5ExprCtx*)pCtx;
+  Fts5Expr *pExpr = p->pExpr;
+  int i;
+  int nQuery = nToken;
+  i64 iRowid = pExpr->pRoot->iRowid;
+
+  UNUSED_PARAM2(iUnused1, iUnused2);
+
+  if( nQuery>FTS5_MAX_TOKEN_SIZE ) nQuery = FTS5_MAX_TOKEN_SIZE;
+  if( pExpr->pConfig->bTokendata ){
+    nQuery = fts5QueryTerm(pToken, nQuery);
+  }
+  if( (tflags & FTS5_TOKEN_COLOCATED)==0 ) p->iOff++;
+  for(i=0; i<pExpr->nPhrase; i++){
+    Fts5ExprTerm *pT;
+    if( p->aPopulator[i].bOk==0 ) continue;
+    for(pT=&pExpr->apExprPhrase[i]->aTerm[0]; pT; pT=pT->pSynonym){
+      if( (pT->nQueryTerm==nQuery || (pT->nQueryTerm<nQuery && pT->bPrefix))
+       && memcmp(pT->pTerm, pToken, pT->nQueryTerm)==0
+      ){
+        int rc = sqlite3Fts5PoslistWriterAppend(
+            &pExpr->apExprPhrase[i]->poslist, &p->aPopulator[i].writer, p->iOff
+        );
+        if( rc==SQLITE_OK && (pExpr->pConfig->bTokendata || pT->bPrefix) ){
+          int iCol = p->iOff>>32;
+          int iTokOff = p->iOff & 0x7FFFFFFF;
+          rc = sqlite3Fts5IndexIterWriteTokendata(
+              pT->pIter, pToken, nToken, iRowid, iCol, iTokOff
+          );
+        }
+        if( rc ) return rc;
+        break;
+      }
+    }
+  }
+  return SQLITE_OK;
+}
+
+int sqlite3Fts5ExprPopulatePoslists(
+  Fts5Config *pConfig,
+  Fts5Expr *pExpr, 
+  Fts5PoslistPopulator *aPopulator,
+  int iCol, 
+  const char *z, int n
+){
+  int i;
+  Fts5ExprCtx sCtx;
+  sCtx.pExpr = pExpr;
+  sCtx.aPopulator = aPopulator;
+  sCtx.iOff = (((i64)iCol) << 32) - 1;
+
+  for(i=0; i<pExpr->nPhrase; i++){
+    Fts5ExprNode *pNode = pExpr->apExprPhrase[i]->pNode;
+    Fts5Colset *pColset = pNode->pNear->pColset;
+    if( (pColset && 0==fts5ExprColsetTest(pColset, iCol)) 
+     || aPopulator[i].bMiss
+    ){
+      aPopulator[i].bOk = 0;
+    }else{
+      aPopulator[i].bOk = 1;
+    }
+  }
+
+  return sqlite3Fts5Tokenize(pConfig, 
+      FTS5_TOKENIZE_DOCUMENT, z, n, (void*)&sCtx, fts5ExprPopulatePoslistsCb
+  );
+}
+
+static void fts5ExprClearPoslists(Fts5ExprNode *pNode){
+  if( pNode->eType==FTS5_TERM || pNode->eType==FTS5_STRING ){
+    pNode->pNear->apPhrase[0]->poslist.n = 0;
+  }else{
+    int i;
+    for(i=0; i<pNode->nChild; i++){
+      fts5ExprClearPoslists(pNode->apChild[i]);
+    }
+  }
+}
+
+static int fts5ExprCheckPoslists(Fts5ExprNode *pNode, i64 iRowid){
+  pNode->iRowid = iRowid;
+  pNode->bEof = 0;
+  switch( pNode->eType ){
+    case 0:
+    case FTS5_TERM:
+    case FTS5_STRING:
+      return (pNode->pNear->apPhrase[0]->poslist.n>0);
+
+    case FTS5_AND: {
+      int i;
+      for(i=0; i<pNode->nChild; i++){
+        if( fts5ExprCheckPoslists(pNode->apChild[i], iRowid)==0 ){
+          fts5ExprClearPoslists(pNode);
+          return 0;
+        }
+      }
+      break;
+    }
+
+    case FTS5_OR: {
+      int i;
+      int bRet = 0;
+      for(i=0; i<pNode->nChild; i++){
+        if( fts5ExprCheckPoslists(pNode->apChild[i], iRowid) ){
+          bRet = 1;
+        }
+      }
+      return bRet;
+    }
+
+    default: {
+      assert( pNode->eType==FTS5_NOT );
+      if( 0==fts5ExprCheckPoslists(pNode->apChild[0], iRowid)
+          || 0!=fts5ExprCheckPoslists(pNode->apChild[1], iRowid)
+        ){
+        fts5ExprClearPoslists(pNode);
+        return 0;
+      }
+      break;
+    }
+  }
+  return 1;
+}
+
+void sqlite3Fts5ExprCheckPoslists(Fts5Expr *pExpr, i64 iRowid){
+  fts5ExprCheckPoslists(pExpr->pRoot, iRowid);
+}
+
+/*
+** This function is only called for detail=columns tables. 
+*/
+int sqlite3Fts5ExprPhraseCollist(
+  Fts5Expr *pExpr, 
+  int iPhrase, 
+  const u8 **ppCollist, 
+  int *pnCollist
+){
+  Fts5ExprPhrase *pPhrase = pExpr->apExprPhrase[iPhrase];
+  Fts5ExprNode *pNode = pPhrase->pNode;
+  int rc = SQLITE_OK;
+
+  assert( iPhrase>=0 && iPhrase<pExpr->nPhrase );
+  assert( pExpr->pConfig->eDetail==FTS5_DETAIL_COLUMNS );
+
+  if( pNode->bEof==0 
+   && pNode->iRowid==pExpr->pRoot->iRowid 
+   && pPhrase->poslist.n>0
+  ){
+    Fts5ExprTerm *pTerm = &pPhrase->aTerm[0];
+    if( pTerm->pSynonym ){
+      Fts5Buffer *pBuf = (Fts5Buffer*)&pTerm->pSynonym[1];
+      rc = fts5ExprSynonymList(
+          pTerm, pNode->iRowid, pBuf, (u8**)ppCollist, pnCollist
+      );
+    }else{
+      *ppCollist = pPhrase->aTerm[0].pIter->pData;
+      *pnCollist = pPhrase->aTerm[0].pIter->nData;
+    }
+  }else{
+    *ppCollist = 0;
+    *pnCollist = 0;
+  }
+
+  return rc;
+}
+
+/*
+** Does the work of the fts5_api.xQueryToken() API method.
+*/
+int sqlite3Fts5ExprQueryToken(
+  Fts5Expr *pExpr, 
+  int iPhrase, 
+  int iToken, 
+  const char **ppOut, 
+  int *pnOut
+){
+  Fts5ExprPhrase *pPhrase = 0;
+
+  if( iPhrase<0 || iPhrase>=pExpr->nPhrase ){
+    return SQLITE_RANGE;
+  }
+  pPhrase = pExpr->apExprPhrase[iPhrase];
+  if( iToken<0 || iToken>=pPhrase->nTerm ){
+    return SQLITE_RANGE;
+  }
+
+  *ppOut = pPhrase->aTerm[iToken].pTerm;
+  *pnOut = pPhrase->aTerm[iToken].nFullTerm;
+  return SQLITE_OK;
+}
+
+/*
+** Does the work of the fts5_api.xInstToken() API method.
+*/
+int sqlite3Fts5ExprInstToken(
+  Fts5Expr *pExpr, 
+  i64 iRowid,
+  int iPhrase, 
+  int iCol, 
+  int iOff, 
+  int iToken, 
+  const char **ppOut, 
+  int *pnOut
+){
+  Fts5ExprPhrase *pPhrase = 0;
+  Fts5ExprTerm *pTerm = 0;
+  int rc = SQLITE_OK;
+
+  if( iPhrase<0 || iPhrase>=pExpr->nPhrase ){
+    return SQLITE_RANGE;
+  }
+  pPhrase = pExpr->apExprPhrase[iPhrase];
+  if( iToken<0 || iToken>=pPhrase->nTerm ){
+    return SQLITE_RANGE;
+  }
+  pTerm = &pPhrase->aTerm[iToken];
+  if( pExpr->pConfig->bTokendata || pTerm->bPrefix ){
+    rc = sqlite3Fts5IterToken(
+        pTerm->pIter, pTerm->pTerm, pTerm->nQueryTerm, 
+        iRowid, iCol, iOff+iToken, ppOut, pnOut
+    );
+  }else{
+    *ppOut = pTerm->pTerm;
+    *pnOut = pTerm->nFullTerm;
+  }
+  return rc;
+}
+
+/*
+** Clear the token mappings for all Fts5IndexIter objects mannaged by 
+** the expression passed as the only argument.
+*/
+void sqlite3Fts5ExprClearTokens(Fts5Expr *pExpr){
+  int ii;
+  for(ii=0; ii<pExpr->nPhrase; ii++){
+    Fts5ExprTerm *pT;
+    for(pT=&pExpr->apExprPhrase[ii]->aTerm[0]; pT; pT=pT->pSynonym){
+      sqlite3Fts5IndexIterClearTokendata(pT->pIter);
+    }
+  }
+}
diff --git a/ext/fts5/fts5_hash.c b/ext/fts5/fts5_hash.c
new file mode 100644
index 0000000000000000000000000000000000000000..5e0959aa8ef3ba324c173f4f189d1aaeacb15c53
--- /dev/null
+++ b/ext/fts5/fts5_hash.c
@@ -0,0 +1,590 @@
+/*
+** 2014 August 11
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+*/
+
+
+
+#include "fts5Int.h"
+
+typedef struct Fts5HashEntry Fts5HashEntry;
+
+/*
+** This file contains the implementation of an in-memory hash table used
+** to accumuluate "term -> doclist" content before it is flused to a level-0
+** segment.
+*/
+
+
+struct Fts5Hash {
+  int eDetail;                    /* Copy of Fts5Config.eDetail */
+  int *pnByte;                    /* Pointer to bytes counter */
+  int nEntry;                     /* Number of entries currently in hash */
+  int nSlot;                      /* Size of aSlot[] array */
+  Fts5HashEntry *pScan;           /* Current ordered scan item */
+  Fts5HashEntry **aSlot;          /* Array of hash slots */
+};
+
+/*
+** Each entry in the hash table is represented by an object of the 
+** following type. Each object, its key, and its current data are stored 
+** in a single memory allocation. The key immediately follows the object 
+** in memory. The position list data immediately follows the key data 
+** in memory.
+**
+** The key is Fts5HashEntry.nKey bytes in size. It consists of a single
+** byte identifying the index (either the main term index or a prefix-index),
+** followed by the term data. For example: "0token". There is no 
+** nul-terminator - in this case nKey=6.
+**
+** The data that follows the key is in a similar, but not identical format
+** to the doclist data stored in the database. It is:
+**
+**   * Rowid, as a varint
+**   * Position list, without 0x00 terminator.
+**   * Size of previous position list and rowid, as a 4 byte
+**     big-endian integer.
+**
+** iRowidOff:
+**   Offset of last rowid written to data area. Relative to first byte of
+**   structure.
+**
+** nData:
+**   Bytes of data written since iRowidOff.
+*/
+struct Fts5HashEntry {
+  Fts5HashEntry *pHashNext;       /* Next hash entry with same hash-key */
+  Fts5HashEntry *pScanNext;       /* Next entry in sorted order */
+  
+  int nAlloc;                     /* Total size of allocation */
+  int iSzPoslist;                 /* Offset of space for 4-byte poslist size */
+  int nData;                      /* Total bytes of data (incl. structure) */
+  int nKey;                       /* Length of key in bytes */
+  u8 bDel;                        /* Set delete-flag @ iSzPoslist */
+  u8 bContent;                    /* Set content-flag (detail=none mode) */
+  i16 iCol;                       /* Column of last value written */
+  int iPos;                       /* Position of last value written */
+  i64 iRowid;                     /* Rowid of last value written */
+};
+
+/*
+** Eqivalent to:
+**
+**   char *fts5EntryKey(Fts5HashEntry *pEntry){ return zKey; }
+*/
+#define fts5EntryKey(p) ( ((char *)(&(p)[1])) )
+
+
+/*
+** Allocate a new hash table.
+*/
+int sqlite3Fts5HashNew(Fts5Config *pConfig, Fts5Hash **ppNew, int *pnByte){
+  int rc = SQLITE_OK;
+  Fts5Hash *pNew;
+
+  *ppNew = pNew = (Fts5Hash*)sqlite3_malloc(sizeof(Fts5Hash));
+  if( pNew==0 ){
+    rc = SQLITE_NOMEM;
+  }else{
+    sqlite3_int64 nByte;
+    memset(pNew, 0, sizeof(Fts5Hash));
+    pNew->pnByte = pnByte;
+    pNew->eDetail = pConfig->eDetail;
+
+    pNew->nSlot = 1024;
+    nByte = sizeof(Fts5HashEntry*) * pNew->nSlot;
+    pNew->aSlot = (Fts5HashEntry**)sqlite3_malloc64(nByte);
+    if( pNew->aSlot==0 ){
+      sqlite3_free(pNew);
+      *ppNew = 0;
+      rc = SQLITE_NOMEM;
+    }else{
+      memset(pNew->aSlot, 0, (size_t)nByte);
+    }
+  }
+  return rc;
+}
+
+/*
+** Free a hash table object.
+*/
+void sqlite3Fts5HashFree(Fts5Hash *pHash){
+  if( pHash ){
+    sqlite3Fts5HashClear(pHash);
+    sqlite3_free(pHash->aSlot);
+    sqlite3_free(pHash);
+  }
+}
+
+/*
+** Empty (but do not delete) a hash table.
+*/
+void sqlite3Fts5HashClear(Fts5Hash *pHash){
+  int i;
+  for(i=0; i<pHash->nSlot; i++){
+    Fts5HashEntry *pNext;
+    Fts5HashEntry *pSlot;
+    for(pSlot=pHash->aSlot[i]; pSlot; pSlot=pNext){
+      pNext = pSlot->pHashNext;
+      sqlite3_free(pSlot);
+    }
+  }
+  memset(pHash->aSlot, 0, pHash->nSlot * sizeof(Fts5HashEntry*));
+  pHash->nEntry = 0;
+}
+
+static unsigned int fts5HashKey(int nSlot, const u8 *p, int n){
+  int i;
+  unsigned int h = 13;
+  for(i=n-1; i>=0; i--){
+    h = (h << 3) ^ h ^ p[i];
+  }
+  return (h % nSlot);
+}
+
+static unsigned int fts5HashKey2(int nSlot, u8 b, const u8 *p, int n){
+  int i;
+  unsigned int h = 13;
+  for(i=n-1; i>=0; i--){
+    h = (h << 3) ^ h ^ p[i];
+  }
+  h = (h << 3) ^ h ^ b;
+  return (h % nSlot);
+}
+
+/*
+** Resize the hash table by doubling the number of slots.
+*/
+static int fts5HashResize(Fts5Hash *pHash){
+  int nNew = pHash->nSlot*2;
+  int i;
+  Fts5HashEntry **apNew;
+  Fts5HashEntry **apOld = pHash->aSlot;
+
+  apNew = (Fts5HashEntry**)sqlite3_malloc64(nNew*sizeof(Fts5HashEntry*));
+  if( !apNew ) return SQLITE_NOMEM;
+  memset(apNew, 0, nNew*sizeof(Fts5HashEntry*));
+
+  for(i=0; i<pHash->nSlot; i++){
+    while( apOld[i] ){
+      unsigned int iHash;
+      Fts5HashEntry *p = apOld[i];
+      apOld[i] = p->pHashNext;
+      iHash = fts5HashKey(nNew, (u8*)fts5EntryKey(p), p->nKey);
+      p->pHashNext = apNew[iHash];
+      apNew[iHash] = p;
+    }
+  }
+
+  sqlite3_free(apOld);
+  pHash->nSlot = nNew;
+  pHash->aSlot = apNew;
+  return SQLITE_OK;
+}
+
+static int fts5HashAddPoslistSize(
+  Fts5Hash *pHash, 
+  Fts5HashEntry *p,
+  Fts5HashEntry *p2
+){
+  int nRet = 0;
+  if( p->iSzPoslist ){
+    u8 *pPtr = p2 ? (u8*)p2 : (u8*)p;
+    int nData = p->nData;
+    if( pHash->eDetail==FTS5_DETAIL_NONE ){
+      assert( nData==p->iSzPoslist );
+      if( p->bDel ){
+        pPtr[nData++] = 0x00;
+        if( p->bContent ){
+          pPtr[nData++] = 0x00;
+        }
+      }
+    }else{
+      int nSz = (nData - p->iSzPoslist - 1);       /* Size in bytes */
+      int nPos = nSz*2 + p->bDel;                     /* Value of nPos field */
+
+      assert( p->bDel==0 || p->bDel==1 );
+      if( nPos<=127 ){
+        pPtr[p->iSzPoslist] = (u8)nPos;
+      }else{
+        int nByte = sqlite3Fts5GetVarintLen((u32)nPos);
+        memmove(&pPtr[p->iSzPoslist + nByte], &pPtr[p->iSzPoslist + 1], nSz);
+        sqlite3Fts5PutVarint(&pPtr[p->iSzPoslist], nPos);
+        nData += (nByte-1);
+      }
+    }
+
+    nRet = nData - p->nData;
+    if( p2==0 ){
+      p->iSzPoslist = 0;
+      p->bDel = 0;
+      p->bContent = 0;
+      p->nData = nData;
+    }
+  }
+  return nRet;
+}
+
+/*
+** Add an entry to the in-memory hash table. The key is the concatenation
+** of bByte and (pToken/nToken). The value is (iRowid/iCol/iPos).
+**
+**     (bByte || pToken) -> (iRowid,iCol,iPos)
+**
+** Or, if iCol is negative, then the value is a delete marker.
+*/
+int sqlite3Fts5HashWrite(
+  Fts5Hash *pHash,
+  i64 iRowid,                     /* Rowid for this entry */
+  int iCol,                       /* Column token appears in (-ve -> delete) */
+  int iPos,                       /* Position of token within column */
+  char bByte,                     /* First byte of token */
+  const char *pToken, int nToken  /* Token to add or remove to or from index */
+){
+  unsigned int iHash;
+  Fts5HashEntry *p;
+  u8 *pPtr;
+  int nIncr = 0;                  /* Amount to increment (*pHash->pnByte) by */
+  int bNew;                       /* If non-delete entry should be written */
+  
+  bNew = (pHash->eDetail==FTS5_DETAIL_FULL);
+
+  /* Attempt to locate an existing hash entry */
+  iHash = fts5HashKey2(pHash->nSlot, (u8)bByte, (const u8*)pToken, nToken);
+  for(p=pHash->aSlot[iHash]; p; p=p->pHashNext){
+    char *zKey = fts5EntryKey(p);
+    if( zKey[0]==bByte 
+     && p->nKey==nToken+1
+     && memcmp(&zKey[1], pToken, nToken)==0 
+    ){
+      break;
+    }
+  }
+
+  /* If an existing hash entry cannot be found, create a new one. */
+  if( p==0 ){
+    /* Figure out how much space to allocate */
+    char *zKey;
+    sqlite3_int64 nByte = sizeof(Fts5HashEntry) + (nToken+1) + 1 + 64;
+    if( nByte<128 ) nByte = 128;
+
+    /* Grow the Fts5Hash.aSlot[] array if necessary. */
+    if( (pHash->nEntry*2)>=pHash->nSlot ){
+      int rc = fts5HashResize(pHash);
+      if( rc!=SQLITE_OK ) return rc;
+      iHash = fts5HashKey2(pHash->nSlot, (u8)bByte, (const u8*)pToken, nToken);
+    }
+
+    /* Allocate new Fts5HashEntry and add it to the hash table. */
+    p = (Fts5HashEntry*)sqlite3_malloc64(nByte);
+    if( !p ) return SQLITE_NOMEM;
+    memset(p, 0, sizeof(Fts5HashEntry));
+    p->nAlloc = (int)nByte;
+    zKey = fts5EntryKey(p);
+    zKey[0] = bByte;
+    memcpy(&zKey[1], pToken, nToken);
+    assert( iHash==fts5HashKey(pHash->nSlot, (u8*)zKey, nToken+1) );
+    p->nKey = nToken+1;
+    zKey[nToken+1] = '\0';
+    p->nData = nToken+1 + sizeof(Fts5HashEntry);
+    p->pHashNext = pHash->aSlot[iHash];
+    pHash->aSlot[iHash] = p;
+    pHash->nEntry++;
+
+    /* Add the first rowid field to the hash-entry */
+    p->nData += sqlite3Fts5PutVarint(&((u8*)p)[p->nData], iRowid);
+    p->iRowid = iRowid;
+
+    p->iSzPoslist = p->nData;
+    if( pHash->eDetail!=FTS5_DETAIL_NONE ){
+      p->nData += 1;
+      p->iCol = (pHash->eDetail==FTS5_DETAIL_FULL ? 0 : -1);
+    }
+
+  }else{
+
+    /* Appending to an existing hash-entry. Check that there is enough 
+    ** space to append the largest possible new entry. Worst case scenario 
+    ** is:
+    **
+    **     + 9 bytes for a new rowid,
+    **     + 4 byte reserved for the "poslist size" varint.
+    **     + 1 byte for a "new column" byte,
+    **     + 3 bytes for a new column number (16-bit max) as a varint,
+    **     + 5 bytes for the new position offset (32-bit max).
+    */
+    if( (p->nAlloc - p->nData) < (9 + 4 + 1 + 3 + 5) ){
+      sqlite3_int64 nNew = p->nAlloc * 2;
+      Fts5HashEntry *pNew;
+      Fts5HashEntry **pp;
+      pNew = (Fts5HashEntry*)sqlite3_realloc64(p, nNew);
+      if( pNew==0 ) return SQLITE_NOMEM;
+      pNew->nAlloc = (int)nNew;
+      for(pp=&pHash->aSlot[iHash]; *pp!=p; pp=&(*pp)->pHashNext);
+      *pp = pNew;
+      p = pNew;
+    }
+    nIncr -= p->nData;
+  }
+  assert( (p->nAlloc - p->nData) >= (9 + 4 + 1 + 3 + 5) );
+
+  pPtr = (u8*)p;
+
+  /* If this is a new rowid, append the 4-byte size field for the previous
+  ** entry, and the new rowid for this entry.  */
+  if( iRowid!=p->iRowid ){
+    u64 iDiff = (u64)iRowid - (u64)p->iRowid;
+    fts5HashAddPoslistSize(pHash, p, 0);
+    p->nData += sqlite3Fts5PutVarint(&pPtr[p->nData], iDiff);
+    p->iRowid = iRowid;
+    bNew = 1;
+    p->iSzPoslist = p->nData;
+    if( pHash->eDetail!=FTS5_DETAIL_NONE ){
+      p->nData += 1;
+      p->iCol = (pHash->eDetail==FTS5_DETAIL_FULL ? 0 : -1);
+      p->iPos = 0;
+    }
+  }
+
+  if( iCol>=0 ){
+    if( pHash->eDetail==FTS5_DETAIL_NONE ){
+      p->bContent = 1;
+    }else{
+      /* Append a new column value, if necessary */
+      assert_nc( iCol>=p->iCol );
+      if( iCol!=p->iCol ){
+        if( pHash->eDetail==FTS5_DETAIL_FULL ){
+          pPtr[p->nData++] = 0x01;
+          p->nData += sqlite3Fts5PutVarint(&pPtr[p->nData], iCol);
+          p->iCol = (i16)iCol;
+          p->iPos = 0;
+        }else{
+          bNew = 1;
+          p->iCol = (i16)(iPos = iCol);
+        }
+      }
+
+      /* Append the new position offset, if necessary */
+      if( bNew ){
+        p->nData += sqlite3Fts5PutVarint(&pPtr[p->nData], iPos - p->iPos + 2);
+        p->iPos = iPos;
+      }
+    }
+  }else{
+    /* This is a delete. Set the delete flag. */
+    p->bDel = 1;
+  }
+
+  nIncr += p->nData;
+  *pHash->pnByte += nIncr;
+  return SQLITE_OK;
+}
+
+
+/*
+** Arguments pLeft and pRight point to linked-lists of hash-entry objects,
+** each sorted in key order. This function merges the two lists into a
+** single list and returns a pointer to its first element.
+*/
+static Fts5HashEntry *fts5HashEntryMerge(
+  Fts5HashEntry *pLeft,
+  Fts5HashEntry *pRight
+){
+  Fts5HashEntry *p1 = pLeft;
+  Fts5HashEntry *p2 = pRight;
+  Fts5HashEntry *pRet = 0;
+  Fts5HashEntry **ppOut = &pRet;
+
+  while( p1 || p2 ){
+    if( p1==0 ){
+      *ppOut = p2;
+      p2 = 0;
+    }else if( p2==0 ){
+      *ppOut = p1;
+      p1 = 0;
+    }else{
+      char *zKey1 = fts5EntryKey(p1);
+      char *zKey2 = fts5EntryKey(p2);
+      int nMin = MIN(p1->nKey, p2->nKey);
+
+      int cmp = memcmp(zKey1, zKey2, nMin);
+      if( cmp==0 ){
+        cmp = p1->nKey - p2->nKey;
+      }
+      assert( cmp!=0 );
+
+      if( cmp>0 ){
+        /* p2 is smaller */
+        *ppOut = p2;
+        ppOut = &p2->pScanNext;
+        p2 = p2->pScanNext;
+      }else{
+        /* p1 is smaller */
+        *ppOut = p1;
+        ppOut = &p1->pScanNext;
+        p1 = p1->pScanNext;
+      }
+      *ppOut = 0;
+    }
+  }
+
+  return pRet;
+}
+
+/*
+** Link all tokens from hash table iHash into a list in sorted order. The
+** tokens are not removed from the hash table.
+*/
+static int fts5HashEntrySort(
+  Fts5Hash *pHash, 
+  const char *pTerm, int nTerm,   /* Query prefix, if any */
+  Fts5HashEntry **ppSorted
+){
+  const int nMergeSlot = 32;
+  Fts5HashEntry **ap;
+  Fts5HashEntry *pList;
+  int iSlot;
+  int i;
+
+  *ppSorted = 0;
+  ap = sqlite3_malloc64(sizeof(Fts5HashEntry*) * nMergeSlot);
+  if( !ap ) return SQLITE_NOMEM;
+  memset(ap, 0, sizeof(Fts5HashEntry*) * nMergeSlot);
+
+  for(iSlot=0; iSlot<pHash->nSlot; iSlot++){
+    Fts5HashEntry *pIter;
+    for(pIter=pHash->aSlot[iSlot]; pIter; pIter=pIter->pHashNext){
+      if( pTerm==0 
+       || (pIter->nKey>=nTerm && 0==memcmp(fts5EntryKey(pIter), pTerm, nTerm))
+      ){
+        Fts5HashEntry *pEntry = pIter;
+        pEntry->pScanNext = 0;
+        for(i=0; ap[i]; i++){
+          pEntry = fts5HashEntryMerge(pEntry, ap[i]);
+          ap[i] = 0;
+        }
+        ap[i] = pEntry;
+      }
+    }
+  }
+
+  pList = 0;
+  for(i=0; i<nMergeSlot; i++){
+    pList = fts5HashEntryMerge(pList, ap[i]);
+  }
+
+  sqlite3_free(ap);
+  *ppSorted = pList;
+  return SQLITE_OK;
+}
+
+/*
+** Query the hash table for a doclist associated with term pTerm/nTerm.
+*/
+int sqlite3Fts5HashQuery(
+  Fts5Hash *pHash,                /* Hash table to query */
+  int nPre,
+  const char *pTerm, int nTerm,   /* Query term */
+  void **ppOut,                   /* OUT: Pointer to new object */
+  int *pnDoclist                  /* OUT: Size of doclist in bytes */
+){
+  unsigned int iHash = fts5HashKey(pHash->nSlot, (const u8*)pTerm, nTerm);
+  char *zKey = 0;
+  Fts5HashEntry *p;
+
+  for(p=pHash->aSlot[iHash]; p; p=p->pHashNext){
+    zKey = fts5EntryKey(p);
+    if( nTerm==p->nKey && memcmp(zKey, pTerm, nTerm)==0 ) break;
+  }
+
+  if( p ){
+    int nHashPre = sizeof(Fts5HashEntry) + nTerm;
+    int nList = p->nData - nHashPre;
+    u8 *pRet = (u8*)(*ppOut = sqlite3_malloc64(nPre + nList + 10));
+    if( pRet ){
+      Fts5HashEntry *pFaux = (Fts5HashEntry*)&pRet[nPre-nHashPre];
+      memcpy(&pRet[nPre], &((u8*)p)[nHashPre], nList);
+      nList += fts5HashAddPoslistSize(pHash, p, pFaux);
+      *pnDoclist = nList;
+    }else{
+      *pnDoclist = 0;
+      return SQLITE_NOMEM;
+    }
+  }else{
+    *ppOut = 0;
+    *pnDoclist = 0;
+  }
+
+  return SQLITE_OK;
+}
+
+int sqlite3Fts5HashScanInit(
+  Fts5Hash *p,                    /* Hash table to query */
+  const char *pTerm, int nTerm    /* Query prefix */
+){
+  return fts5HashEntrySort(p, pTerm, nTerm, &p->pScan);
+}
+
+#ifdef SQLITE_DEBUG
+static int fts5HashCount(Fts5Hash *pHash){
+  int nEntry = 0;
+  int ii;
+  for(ii=0; ii<pHash->nSlot; ii++){
+    Fts5HashEntry *p = 0;
+    for(p=pHash->aSlot[ii]; p; p=p->pHashNext){
+      nEntry++;
+    }
+  }
+  return nEntry;
+}
+#endif
+
+/*
+** Return true if the hash table is empty, false otherwise.
+*/
+int sqlite3Fts5HashIsEmpty(Fts5Hash *pHash){
+  assert( pHash->nEntry==fts5HashCount(pHash) );
+  return pHash->nEntry==0;
+}
+
+void sqlite3Fts5HashScanNext(Fts5Hash *p){
+  assert( !sqlite3Fts5HashScanEof(p) );
+  p->pScan = p->pScan->pScanNext;
+}
+
+int sqlite3Fts5HashScanEof(Fts5Hash *p){
+  return (p->pScan==0);
+}
+
+void sqlite3Fts5HashScanEntry(
+  Fts5Hash *pHash,
+  const char **pzTerm,            /* OUT: term (nul-terminated) */
+  int *pnTerm,                    /* OUT: Size of term in bytes */
+  const u8 **ppDoclist,           /* OUT: pointer to doclist */
+  int *pnDoclist                  /* OUT: size of doclist in bytes */
+){
+  Fts5HashEntry *p;
+  if( (p = pHash->pScan) ){
+    char *zKey = fts5EntryKey(p);
+    int nTerm = p->nKey;
+    fts5HashAddPoslistSize(pHash, p, 0);
+    *pzTerm = zKey;
+    *pnTerm = nTerm;
+    *ppDoclist = (const u8*)&zKey[nTerm];
+    *pnDoclist = p->nData - (sizeof(Fts5HashEntry) + nTerm);
+  }else{
+    *pzTerm = 0;
+    *pnTerm = 0;
+    *ppDoclist = 0;
+    *pnDoclist = 0;
+  }
+}
diff --git a/ext/fts5/fts5_index.c b/ext/fts5/fts5_index.c
new file mode 100644
index 0000000000000000000000000000000000000000..242258af705754a7a2f51d80115f0a661da0529f
--- /dev/null
+++ b/ext/fts5/fts5_index.c
@@ -0,0 +1,9411 @@
+/*
+** 2014 May 31
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** Low level access to the FTS index stored in the database file. The 
+** routines in this file file implement all read and write access to the
+** %_data table. Other parts of the system access this functionality via
+** the interface defined in fts5Int.h.
+*/
+
+
+#include "fts5Int.h"
+
+/*
+** Overview:
+**
+** The %_data table contains all the FTS indexes for an FTS5 virtual table.
+** As well as the main term index, there may be up to 31 prefix indexes.
+** The format is similar to FTS3/4, except that:
+**
+**   * all segment b-tree leaf data is stored in fixed size page records 
+**     (e.g. 1000 bytes). A single doclist may span multiple pages. Care is 
+**     taken to ensure it is possible to iterate in either direction through 
+**     the entries in a doclist, or to seek to a specific entry within a 
+**     doclist, without loading it into memory.
+**
+**   * large doclists that span many pages have associated "doclist index"
+**     records that contain a copy of the first rowid on each page spanned by
+**     the doclist. This is used to speed up seek operations, and merges of
+**     large doclists with very small doclists.
+**
+**   * extra fields in the "structure record" record the state of ongoing
+**     incremental merge operations.
+**
+*/
+
+
+#define FTS5_OPT_WORK_UNIT  1000  /* Number of leaf pages per optimize step */
+#define FTS5_WORK_UNIT      64    /* Number of leaf pages in unit of work */
+
+#define FTS5_MIN_DLIDX_SIZE 4     /* Add dlidx if this many empty pages */
+
+#define FTS5_MAIN_PREFIX '0'
+
+#if FTS5_MAX_PREFIX_INDEXES > 31
+# error "FTS5_MAX_PREFIX_INDEXES is too large"
+#endif
+
+#define FTS5_MAX_LEVEL 64
+
+/*
+** There are two versions of the format used for the structure record:
+**
+**   1. the legacy format, that may be read by all fts5 versions, and
+**
+**   2. the V2 format, which is used by contentless_delete=1 databases.
+**
+** Both begin with a 4-byte "configuration cookie" value. Then, a legacy
+** format structure record contains a varint - the number of levels in
+** the structure. Whereas a V2 structure record contains the constant
+** 4 bytes [0xff 0x00 0x00 0x01]. This is unambiguous as the value of a
+** varint has to be at least 16256 to begin with "0xFF". And the default
+** maximum number of levels is 64. 
+**
+** See below for more on structure record formats.
+*/
+#define FTS5_STRUCTURE_V2 "\xFF\x00\x00\x01"
+
+/*
+** Details:
+**
+** The %_data table managed by this module,
+**
+**     CREATE TABLE %_data(id INTEGER PRIMARY KEY, block BLOB);
+**
+** , contains the following 6 types of records. See the comments surrounding
+** the FTS5_*_ROWID macros below for a description of how %_data rowids are 
+** assigned to each fo them.
+**
+** 1. Structure Records:
+**
+**   The set of segments that make up an index - the index structure - are
+**   recorded in a single record within the %_data table. The record consists
+**   of a single 32-bit configuration cookie value followed by a list of
+**   SQLite varints. 
+**
+**   If the structure record is a V2 record, the configuration cookie is 
+**   followed by the following 4 bytes: [0xFF 0x00 0x00 0x01]. 
+**
+**   Next, the record continues with three varints:
+**
+**     + number of levels,
+**     + total number of segments on all levels,
+**     + value of write counter.
+**
+**   Then, for each level from 0 to nMax:
+**
+**     + number of input segments in ongoing merge.
+**     + total number of segments in level.
+**     + for each segment from oldest to newest:
+**         + segment id (always > 0)
+**         + first leaf page number (often 1, always greater than 0)
+**         + final leaf page number
+**
+**      Then, for V2 structures only:
+**
+**         + lower origin counter value,
+**         + upper origin counter value,
+**         + the number of tombstone hash pages.
+**
+** 2. The Averages Record:
+**
+**   A single record within the %_data table. The data is a list of varints.
+**   The first value is the number of rows in the index. Then, for each column
+**   from left to right, the total number of tokens in the column for all
+**   rows of the table.
+**
+** 3. Segment leaves:
+**
+**   TERM/DOCLIST FORMAT:
+**
+**     Most of each segment leaf is taken up by term/doclist data. The 
+**     general format of term/doclist, starting with the first term
+**     on the leaf page, is:
+**
+**         varint : size of first term
+**         blob:    first term data
+**         doclist: first doclist
+**         zero-or-more {
+**           varint:  number of bytes in common with previous term
+**           varint:  number of bytes of new term data (nNew)
+**           blob:    nNew bytes of new term data
+**           doclist: next doclist
+**         }
+**
+**     doclist format:
+**
+**         varint:  first rowid
+**         poslist: first poslist
+**         zero-or-more {
+**           varint:  rowid delta (always > 0)
+**           poslist: next poslist
+**         }
+**
+**     poslist format:
+**
+**         varint: size of poslist in bytes multiplied by 2, not including
+**                 this field. Plus 1 if this entry carries the "delete" flag.
+**         collist: collist for column 0
+**         zero-or-more {
+**           0x01 byte
+**           varint: column number (I)
+**           collist: collist for column I
+**         }
+**
+**     collist format:
+**
+**         varint: first offset + 2
+**         zero-or-more {
+**           varint: offset delta + 2
+**         }
+**
+**   PAGE FORMAT
+**
+**     Each leaf page begins with a 4-byte header containing 2 16-bit 
+**     unsigned integer fields in big-endian format. They are:
+**
+**       * The byte offset of the first rowid on the page, if it exists
+**         and occurs before the first term (otherwise 0).
+**
+**       * The byte offset of the start of the page footer. If the page
+**         footer is 0 bytes in size, then this field is the same as the
+**         size of the leaf page in bytes.
+**
+**     The page footer consists of a single varint for each term located
+**     on the page. Each varint is the byte offset of the current term
+**     within the page, delta-compressed against the previous value. In
+**     other words, the first varint in the footer is the byte offset of
+**     the first term, the second is the byte offset of the second less that
+**     of the first, and so on.
+**
+**     The term/doclist format described above is accurate if the entire
+**     term/doclist data fits on a single leaf page. If this is not the case,
+**     the format is changed in two ways:
+**
+**       + if the first rowid on a page occurs before the first term, it
+**         is stored as a literal value:
+**
+**             varint:  first rowid
+**
+**       + the first term on each page is stored in the same way as the
+**         very first term of the segment:
+**
+**             varint : size of first term
+**             blob:    first term data
+**
+** 5. Segment doclist indexes:
+**
+**   Doclist indexes are themselves b-trees, however they usually consist of
+**   a single leaf record only. The format of each doclist index leaf page 
+**   is:
+**
+**     * Flags byte. Bits are:
+**         0x01: Clear if leaf is also the root page, otherwise set.
+**
+**     * Page number of fts index leaf page. As a varint.
+**
+**     * First rowid on page indicated by previous field. As a varint.
+**
+**     * A list of varints, one for each subsequent termless page. A 
+**       positive delta if the termless page contains at least one rowid, 
+**       or an 0x00 byte otherwise.
+**
+**   Internal doclist index nodes are:
+**
+**     * Flags byte. Bits are:
+**         0x01: Clear for root page, otherwise set.
+**
+**     * Page number of first child page. As a varint.
+**
+**     * Copy of first rowid on page indicated by previous field. As a varint.
+**
+**     * A list of delta-encoded varints - the first rowid on each subsequent
+**       child page. 
+**
+** 6. Tombstone Hash Page
+**
+**   These records are only ever present in contentless_delete=1 tables. 
+**   There are zero or more of these associated with each segment. They
+**   are used to store the tombstone rowids for rows contained in the
+**   associated segments.
+**
+**   The set of nHashPg tombstone hash pages associated with a single 
+**   segment together form a single hash table containing tombstone rowids.
+**   To find the page of the hash on which a key might be stored:
+**
+**       iPg = (rowid % nHashPg)
+**
+**   Then, within page iPg, which has nSlot slots:
+**
+**       iSlot = (rowid / nHashPg) % nSlot
+**
+**   Each tombstone hash page begins with an 8 byte header: 
+**
+**     1-byte:  Key-size (the size in bytes of each slot). Either 4 or 8.
+**     1-byte:  rowid-0-tombstone flag. This flag is only valid on the 
+**              first tombstone hash page for each segment (iPg=0). If set,
+**              the hash table contains rowid 0. If clear, it does not.
+**              Rowid 0 is handled specially.
+**     2-bytes: unused.
+**     4-bytes: Big-endian integer containing number of entries on page.
+**
+**   Following this are nSlot 4 or 8 byte slots (depending on the key-size
+**   in the first byte of the page header). The number of slots may be
+**   determined based on the size of the page record and the key-size:
+**
+**     nSlot = (nByte - 8) / key-size
+*/
+
+/*
+** Rowids for the averages and structure records in the %_data table.
+*/
+#define FTS5_AVERAGES_ROWID     1    /* Rowid used for the averages record */
+#define FTS5_STRUCTURE_ROWID   10    /* The structure record */
+
+/*
+** Macros determining the rowids used by segment leaves and dlidx leaves
+** and nodes. All nodes and leaves are stored in the %_data table with large
+** positive rowids.
+**
+** Each segment has a unique non-zero 16-bit id.
+**
+** The rowid for each segment leaf is found by passing the segment id and 
+** the leaf page number to the FTS5_SEGMENT_ROWID macro. Leaves are numbered
+** sequentially starting from 1.
+*/
+#define FTS5_DATA_ID_B     16     /* Max seg id number 65535 */
+#define FTS5_DATA_DLI_B     1     /* Doclist-index flag (1 bit) */
+#define FTS5_DATA_HEIGHT_B  5     /* Max dlidx tree height of 32 */
+#define FTS5_DATA_PAGE_B   31     /* Max page number of 2147483648 */
+
+#define fts5_dri(segid, dlidx, height, pgno) (                                 \
+ ((i64)(segid)  << (FTS5_DATA_PAGE_B+FTS5_DATA_HEIGHT_B+FTS5_DATA_DLI_B)) +    \
+ ((i64)(dlidx)  << (FTS5_DATA_PAGE_B + FTS5_DATA_HEIGHT_B)) +                  \
+ ((i64)(height) << (FTS5_DATA_PAGE_B)) +                                       \
+ ((i64)(pgno))                                                                 \
+)
+
+#define FTS5_SEGMENT_ROWID(segid, pgno)       fts5_dri(segid, 0, 0, pgno)
+#define FTS5_DLIDX_ROWID(segid, height, pgno) fts5_dri(segid, 1, height, pgno)
+#define FTS5_TOMBSTONE_ROWID(segid,ipg)       fts5_dri(segid+(1<<16), 0, 0, ipg)
+
+#ifdef SQLITE_DEBUG
+int sqlite3Fts5Corrupt() { return SQLITE_CORRUPT_VTAB; }
+#endif
+
+
+/*
+** Each time a blob is read from the %_data table, it is padded with this
+** many zero bytes. This makes it easier to decode the various record formats
+** without overreading if the records are corrupt.
+*/
+#define FTS5_DATA_ZERO_PADDING 8
+#define FTS5_DATA_PADDING 20
+
+typedef struct Fts5Data Fts5Data;
+typedef struct Fts5DlidxIter Fts5DlidxIter;
+typedef struct Fts5DlidxLvl Fts5DlidxLvl;
+typedef struct Fts5DlidxWriter Fts5DlidxWriter;
+typedef struct Fts5Iter Fts5Iter;
+typedef struct Fts5PageWriter Fts5PageWriter;
+typedef struct Fts5SegIter Fts5SegIter;
+typedef struct Fts5DoclistIter Fts5DoclistIter;
+typedef struct Fts5SegWriter Fts5SegWriter;
+typedef struct Fts5Structure Fts5Structure;
+typedef struct Fts5StructureLevel Fts5StructureLevel;
+typedef struct Fts5StructureSegment Fts5StructureSegment;
+typedef struct Fts5TokenDataIter Fts5TokenDataIter;
+typedef struct Fts5TokenDataMap Fts5TokenDataMap;
+typedef struct Fts5TombstoneArray Fts5TombstoneArray;
+
+struct Fts5Data {
+  u8 *p;                          /* Pointer to buffer containing record */
+  int nn;                         /* Size of record in bytes */
+  int szLeaf;                     /* Size of leaf without page-index */
+};
+
+/*
+** One object per %_data table.
+**
+** nContentlessDelete:
+**   The number of contentless delete operations since the most recent
+**   call to fts5IndexFlush() or fts5IndexDiscardData(). This is tracked
+**   so that extra auto-merge work can be done by fts5IndexFlush() to
+**   account for the delete operations.
+*/
+struct Fts5Index {
+  Fts5Config *pConfig;            /* Virtual table configuration */
+  char *zDataTbl;                 /* Name of %_data table */
+  int nWorkUnit;                  /* Leaf pages in a "unit" of work */
+
+  /*
+  ** Variables related to the accumulation of tokens and doclists within the
+  ** in-memory hash tables before they are flushed to disk.
+  */
+  Fts5Hash *pHash;                /* Hash table for in-memory data */
+  int nPendingData;               /* Current bytes of pending data */
+  i64 iWriteRowid;                /* Rowid for current doc being written */
+  int bDelete;                    /* Current write is a delete */
+  int nContentlessDelete;         /* Number of contentless delete ops */
+  int nPendingRow;                /* Number of INSERT in hash table */
+
+  /* Error state. */
+  int rc;                         /* Current error code */
+  int flushRc;
+
+  /* State used by the fts5DataXXX() functions. */
+  sqlite3_blob *pReader;          /* RO incr-blob open on %_data table */
+  sqlite3_stmt *pWriter;          /* "INSERT ... %_data VALUES(?,?)" */
+  sqlite3_stmt *pDeleter;         /* "DELETE FROM %_data ... id>=? AND id<=?" */
+  sqlite3_stmt *pIdxWriter;       /* "INSERT ... %_idx VALUES(?,?,?,?)" */
+  sqlite3_stmt *pIdxDeleter;      /* "DELETE FROM %_idx WHERE segid=?" */
+  sqlite3_stmt *pIdxSelect;
+  sqlite3_stmt *pIdxNextSelect;
+  int nRead;                      /* Total number of blocks read */
+
+  sqlite3_stmt *pDeleteFromIdx;
+
+  sqlite3_stmt *pDataVersion;
+  i64 iStructVersion;             /* data_version when pStruct read */
+  Fts5Structure *pStruct;         /* Current db structure (or NULL) */
+};
+
+struct Fts5DoclistIter {
+  u8 *aEof;                       /* Pointer to 1 byte past end of doclist */
+
+  /* Output variables. aPoslist==0 at EOF */
+  i64 iRowid;
+  u8 *aPoslist;
+  int nPoslist;
+  int nSize;
+};
+
+/*
+** The contents of the "structure" record for each index are represented
+** using an Fts5Structure record in memory. Which uses instances of the 
+** other Fts5StructureXXX types as components.
+**
+** nOriginCntr:
+**   This value is set to non-zero for structure records created for
+**   contentlessdelete=1 tables only. In that case it represents the
+**   origin value to apply to the next top-level segment created.
+*/
+struct Fts5StructureSegment {
+  int iSegid;                     /* Segment id */
+  int pgnoFirst;                  /* First leaf page number in segment */
+  int pgnoLast;                   /* Last leaf page number in segment */
+
+  /* contentlessdelete=1 tables only: */
+  u64 iOrigin1;
+  u64 iOrigin2;
+  int nPgTombstone;               /* Number of tombstone hash table pages */
+  u64 nEntryTombstone;            /* Number of tombstone entries that "count" */
+  u64 nEntry;                     /* Number of rows in this segment */
+};
+struct Fts5StructureLevel {
+  int nMerge;                     /* Number of segments in incr-merge */
+  int nSeg;                       /* Total number of segments on level */
+  Fts5StructureSegment *aSeg;     /* Array of segments. aSeg[0] is oldest. */
+};
+struct Fts5Structure {
+  int nRef;                       /* Object reference count */
+  u64 nWriteCounter;              /* Total leaves written to level 0 */
+  u64 nOriginCntr;                /* Origin value for next top-level segment */
+  int nSegment;                   /* Total segments in this structure */
+  int nLevel;                     /* Number of levels in this index */
+  Fts5StructureLevel aLevel[1];   /* Array of nLevel level objects */
+};
+
+/*
+** An object of type Fts5SegWriter is used to write to segments.
+*/
+struct Fts5PageWriter {
+  int pgno;                       /* Page number for this page */
+  int iPrevPgidx;                 /* Previous value written into pgidx */
+  Fts5Buffer buf;                 /* Buffer containing leaf data */
+  Fts5Buffer pgidx;               /* Buffer containing page-index */
+  Fts5Buffer term;                /* Buffer containing previous term on page */
+};
+struct Fts5DlidxWriter {
+  int pgno;                       /* Page number for this page */
+  int bPrevValid;                 /* True if iPrev is valid */
+  i64 iPrev;                      /* Previous rowid value written to page */
+  Fts5Buffer buf;                 /* Buffer containing page data */
+};
+struct Fts5SegWriter {
+  int iSegid;                     /* Segid to write to */
+  Fts5PageWriter writer;          /* PageWriter object */
+  i64 iPrevRowid;                 /* Previous rowid written to current leaf */
+  u8 bFirstRowidInDoclist;        /* True if next rowid is first in doclist */
+  u8 bFirstRowidInPage;           /* True if next rowid is first in page */
+  /* TODO1: Can use (writer.pgidx.n==0) instead of bFirstTermInPage */
+  u8 bFirstTermInPage;            /* True if next term will be first in leaf */
+  int nLeafWritten;               /* Number of leaf pages written */
+  int nEmpty;                     /* Number of contiguous term-less nodes */
+
+  int nDlidx;                     /* Allocated size of aDlidx[] array */
+  Fts5DlidxWriter *aDlidx;        /* Array of Fts5DlidxWriter objects */
+
+  /* Values to insert into the %_idx table */
+  Fts5Buffer btterm;              /* Next term to insert into %_idx table */
+  int iBtPage;                    /* Page number corresponding to btterm */
+};
+
+typedef struct Fts5CResult Fts5CResult;
+struct Fts5CResult {
+  u16 iFirst;                     /* aSeg[] index of firstest iterator */
+  u8 bTermEq;                     /* True if the terms are equal */
+};
+
+/*
+** Object for iterating through a single segment, visiting each term/rowid
+** pair in the segment.
+**
+** pSeg:
+**   The segment to iterate through.
+**
+** iLeafPgno:
+**   Current leaf page number within segment.
+**
+** iLeafOffset:
+**   Byte offset within the current leaf that is the first byte of the 
+**   position list data (one byte passed the position-list size field).
+**
+** pLeaf:
+**   Buffer containing current leaf page data. Set to NULL at EOF.
+**
+** iTermLeafPgno, iTermLeafOffset:
+**   Leaf page number containing the last term read from the segment. And
+**   the offset immediately following the term data.
+**
+** flags:
+**   Mask of FTS5_SEGITER_XXX values. Interpreted as follows:
+**
+**   FTS5_SEGITER_ONETERM:
+**     If set, set the iterator to point to EOF after the current doclist 
+**     has been exhausted. Do not proceed to the next term in the segment.
+**
+**   FTS5_SEGITER_REVERSE:
+**     This flag is only ever set if FTS5_SEGITER_ONETERM is also set. If
+**     it is set, iterate through rowid in descending order instead of the
+**     default ascending order.
+**
+** iRowidOffset/nRowidOffset/aRowidOffset:
+**     These are used if the FTS5_SEGITER_REVERSE flag is set.
+**
+**     For each rowid on the page corresponding to the current term, the
+**     corresponding aRowidOffset[] entry is set to the byte offset of the
+**     start of the "position-list-size" field within the page.
+**
+** iTermIdx:
+**     Index of current term on iTermLeafPgno.
+**
+** apTombstone/nTombstone:
+**     These are used for contentless_delete=1 tables only. When the cursor
+**     is first allocated, the apTombstone[] array is allocated so that it
+**     is large enough for all tombstones hash pages associated with the
+**     segment. The pages themselves are loaded lazily from the database as
+**     they are required.
+*/
+struct Fts5SegIter {
+  Fts5StructureSegment *pSeg;     /* Segment to iterate through */
+  int flags;                      /* Mask of configuration flags */
+  int iLeafPgno;                  /* Current leaf page number */
+  Fts5Data *pLeaf;                /* Current leaf data */
+  Fts5Data *pNextLeaf;            /* Leaf page (iLeafPgno+1) */
+  i64 iLeafOffset;                /* Byte offset within current leaf */
+  Fts5TombstoneArray *pTombArray; /* Array of tombstone pages */
+
+  /* Next method */
+  void (*xNext)(Fts5Index*, Fts5SegIter*, int*);
+
+  /* The page and offset from which the current term was read. The offset 
+  ** is the offset of the first rowid in the current doclist.  */
+  int iTermLeafPgno;
+  int iTermLeafOffset;
+
+  int iPgidxOff;                  /* Next offset in pgidx */
+  int iEndofDoclist;
+
+  /* The following are only used if the FTS5_SEGITER_REVERSE flag is set. */
+  int iRowidOffset;               /* Current entry in aRowidOffset[] */
+  int nRowidOffset;               /* Allocated size of aRowidOffset[] array */
+  int *aRowidOffset;              /* Array of offset to rowid fields */
+
+  Fts5DlidxIter *pDlidx;          /* If there is a doclist-index */
+
+  /* Variables populated based on current entry. */
+  Fts5Buffer term;                /* Current term */
+  i64 iRowid;                     /* Current rowid */
+  int nPos;                       /* Number of bytes in current position list */
+  u8 bDel;                        /* True if the delete flag is set */
+};
+
+/*
+** Array of tombstone pages. Reference counted.
+*/
+struct Fts5TombstoneArray {
+  int nRef;                       /* Number of pointers to this object */
+  int nTombstone;
+  Fts5Data *apTombstone[1];       /* Array of tombstone pages */
+};
+
+/*
+** Argument is a pointer to an Fts5Data structure that contains a 
+** leaf page.
+*/
+#define ASSERT_SZLEAF_OK(x) assert( \
+    (x)->szLeaf==(x)->nn || (x)->szLeaf==fts5GetU16(&(x)->p[2]) \
+)
+
+#define FTS5_SEGITER_ONETERM 0x01
+#define FTS5_SEGITER_REVERSE 0x02
+
+/* 
+** Argument is a pointer to an Fts5Data structure that contains a leaf
+** page. This macro evaluates to true if the leaf contains no terms, or
+** false if it contains at least one term.
+*/
+#define fts5LeafIsTermless(x) ((x)->szLeaf >= (x)->nn)
+
+#define fts5LeafTermOff(x, i) (fts5GetU16(&(x)->p[(x)->szLeaf + (i)*2]))
+
+#define fts5LeafFirstRowidOff(x) (fts5GetU16((x)->p))
+
+/*
+** Object for iterating through the merged results of one or more segments,
+** visiting each term/rowid pair in the merged data.
+**
+** nSeg is always a power of two greater than or equal to the number of
+** segments that this object is merging data from. Both the aSeg[] and
+** aFirst[] arrays are sized at nSeg entries. The aSeg[] array is padded
+** with zeroed objects - these are handled as if they were iterators opened
+** on empty segments.
+**
+** The results of comparing segments aSeg[N] and aSeg[N+1], where N is an
+** even number, is stored in aFirst[(nSeg+N)/2]. The "result" of the 
+** comparison in this context is the index of the iterator that currently
+** points to the smaller term/rowid combination. Iterators at EOF are
+** considered to be greater than all other iterators.
+**
+** aFirst[1] contains the index in aSeg[] of the iterator that points to
+** the smallest key overall. aFirst[0] is unused. 
+**
+** poslist:
+**   Used by sqlite3Fts5IterPoslist() when the poslist needs to be buffered.
+**   There is no way to tell if this is populated or not.
+**
+** pColset:
+**   If not NULL, points to an object containing a set of column indices.
+**   Only matches that occur in one of these columns will be returned.
+**   The Fts5Iter does not own the Fts5Colset object, and so it is not
+**   freed when the iterator is closed - it is owned by the upper layer.
+*/
+struct Fts5Iter {
+  Fts5IndexIter base;             /* Base class containing output vars */
+  Fts5TokenDataIter *pTokenDataIter;
+
+  Fts5Index *pIndex;              /* Index that owns this iterator */
+  Fts5Buffer poslist;             /* Buffer containing current poslist */
+  Fts5Colset *pColset;            /* Restrict matches to these columns */
+
+  /* Invoked to set output variables. */
+  void (*xSetOutputs)(Fts5Iter*, Fts5SegIter*);
+
+  int nSeg;                       /* Size of aSeg[] array */
+  int bRev;                       /* True to iterate in reverse order */
+  u8 bSkipEmpty;                  /* True to skip deleted entries */
+
+  i64 iSwitchRowid;               /* Firstest rowid of other than aFirst[1] */
+  Fts5CResult *aFirst;            /* Current merge state (see above) */
+  Fts5SegIter aSeg[1];            /* Array of segment iterators */
+};
+
+/*
+** An instance of the following type is used to iterate through the contents
+** of a doclist-index record.
+**
+** pData:
+**   Record containing the doclist-index data.
+**
+** bEof:
+**   Set to true once iterator has reached EOF.
+**
+** iOff:
+**   Set to the current offset within record pData.
+*/
+struct Fts5DlidxLvl {
+  Fts5Data *pData;              /* Data for current page of this level */
+  int iOff;                     /* Current offset into pData */
+  int bEof;                     /* At EOF already */
+  int iFirstOff;                /* Used by reverse iterators */
+
+  /* Output variables */
+  int iLeafPgno;                /* Page number of current leaf page */
+  i64 iRowid;                   /* First rowid on leaf iLeafPgno */
+};
+struct Fts5DlidxIter {
+  int nLvl;
+  int iSegid;
+  Fts5DlidxLvl aLvl[1];
+};
+
+static void fts5PutU16(u8 *aOut, u16 iVal){
+  aOut[0] = (iVal>>8);
+  aOut[1] = (iVal&0xFF);
+}
+
+static u16 fts5GetU16(const u8 *aIn){
+  return ((u16)aIn[0] << 8) + aIn[1];
+} 
+
+/*
+** The only argument points to a buffer at least 8 bytes in size. This
+** function interprets the first 8 bytes of the buffer as a 64-bit big-endian
+** unsigned integer and returns the result.
+*/
+static u64 fts5GetU64(u8 *a){
+  return ((u64)a[0] << 56)
+       + ((u64)a[1] << 48)
+       + ((u64)a[2] << 40)
+       + ((u64)a[3] << 32)
+       + ((u64)a[4] << 24)
+       + ((u64)a[5] << 16)
+       + ((u64)a[6] << 8)
+       + ((u64)a[7] << 0);
+}
+
+/*
+** The only argument points to a buffer at least 4 bytes in size. This
+** function interprets the first 4 bytes of the buffer as a 32-bit big-endian
+** unsigned integer and returns the result.
+*/
+static u32 fts5GetU32(const u8 *a){
+  return ((u32)a[0] << 24)
+       + ((u32)a[1] << 16)
+       + ((u32)a[2] << 8)
+       + ((u32)a[3] << 0);
+} 
+
+/*
+** Write iVal, formated as a 64-bit big-endian unsigned integer, to the
+** buffer indicated by the first argument.
+*/
+static void fts5PutU64(u8 *a, u64 iVal){
+  a[0] = ((iVal >> 56) & 0xFF);
+  a[1] = ((iVal >> 48) & 0xFF);
+  a[2] = ((iVal >> 40) & 0xFF);
+  a[3] = ((iVal >> 32) & 0xFF);
+  a[4] = ((iVal >> 24) & 0xFF);
+  a[5] = ((iVal >> 16) & 0xFF);
+  a[6] = ((iVal >>  8) & 0xFF);
+  a[7] = ((iVal >>  0) & 0xFF);
+}
+
+/*
+** Write iVal, formated as a 32-bit big-endian unsigned integer, to the
+** buffer indicated by the first argument.
+*/
+static void fts5PutU32(u8 *a, u32 iVal){
+  a[0] = ((iVal >> 24) & 0xFF);
+  a[1] = ((iVal >> 16) & 0xFF);
+  a[2] = ((iVal >>  8) & 0xFF);
+  a[3] = ((iVal >>  0) & 0xFF);
+}
+
+/*
+** Allocate and return a buffer at least nByte bytes in size.
+**
+** If an OOM error is encountered, return NULL and set the error code in
+** the Fts5Index handle passed as the first argument.
+*/
+static void *fts5IdxMalloc(Fts5Index *p, sqlite3_int64 nByte){
+  return sqlite3Fts5MallocZero(&p->rc, nByte);
+}
+
+/*
+** Compare the contents of the pLeft buffer with the pRight/nRight blob.
+**
+** Return -ve if pLeft is smaller than pRight, 0 if they are equal or
+** +ve if pRight is smaller than pLeft. In other words:
+**
+**     res = *pLeft - *pRight
+*/
+#ifdef SQLITE_DEBUG
+static int fts5BufferCompareBlob(
+  Fts5Buffer *pLeft,              /* Left hand side of comparison */
+  const u8 *pRight, int nRight    /* Right hand side of comparison */
+){
+  int nCmp = MIN(pLeft->n, nRight);
+  int res = memcmp(pLeft->p, pRight, nCmp);
+  return (res==0 ? (pLeft->n - nRight) : res);
+}
+#endif
+
+/*
+** Compare the contents of the two buffers using memcmp(). If one buffer
+** is a prefix of the other, it is considered the lesser.
+**
+** Return -ve if pLeft is smaller than pRight, 0 if they are equal or
+** +ve if pRight is smaller than pLeft. In other words:
+**
+**     res = *pLeft - *pRight
+*/
+static int fts5BufferCompare(Fts5Buffer *pLeft, Fts5Buffer *pRight){
+  int nCmp, res;
+  nCmp = MIN(pLeft->n, pRight->n);
+  assert( nCmp<=0 || pLeft->p!=0 );
+  assert( nCmp<=0 || pRight->p!=0 );
+  res = fts5Memcmp(pLeft->p, pRight->p, nCmp);
+  return (res==0 ? (pLeft->n - pRight->n) : res);
+}
+
+static int fts5LeafFirstTermOff(Fts5Data *pLeaf){
+  int ret;
+  fts5GetVarint32(&pLeaf->p[pLeaf->szLeaf], ret);
+  return ret;
+}
+
+/*
+** Close the read-only blob handle, if it is open.
+*/
+void sqlite3Fts5IndexCloseReader(Fts5Index *p){
+  if( p->pReader ){
+    sqlite3_blob *pReader = p->pReader;
+    p->pReader = 0;
+    sqlite3_blob_close(pReader);
+  }
+}
+
+/*
+** Retrieve a record from the %_data table.
+**
+** If an error occurs, NULL is returned and an error left in the 
+** Fts5Index object.
+*/
+static Fts5Data *fts5DataRead(Fts5Index *p, i64 iRowid){
+  Fts5Data *pRet = 0;
+  if( p->rc==SQLITE_OK ){
+    int rc = SQLITE_OK;
+
+    if( p->pReader ){
+      /* This call may return SQLITE_ABORT if there has been a savepoint
+      ** rollback since it was last used. In this case a new blob handle
+      ** is required.  */
+      sqlite3_blob *pBlob = p->pReader;
+      p->pReader = 0;
+      rc = sqlite3_blob_reopen(pBlob, iRowid);
+      assert( p->pReader==0 );
+      p->pReader = pBlob;
+      if( rc!=SQLITE_OK ){
+        sqlite3Fts5IndexCloseReader(p);
+      }
+      if( rc==SQLITE_ABORT ) rc = SQLITE_OK;
+    }
+
+    /* If the blob handle is not open at this point, open it and seek 
+    ** to the requested entry.  */
+    if( p->pReader==0 && rc==SQLITE_OK ){
+      Fts5Config *pConfig = p->pConfig;
+      rc = sqlite3_blob_open(pConfig->db, 
+          pConfig->zDb, p->zDataTbl, "block", iRowid, 0, &p->pReader
+      );
+    }
+
+    /* If either of the sqlite3_blob_open() or sqlite3_blob_reopen() calls
+    ** above returned SQLITE_ERROR, return SQLITE_CORRUPT_VTAB instead.
+    ** All the reasons those functions might return SQLITE_ERROR - missing
+    ** table, missing row, non-blob/text in block column - indicate 
+    ** backing store corruption.  */
+    if( rc==SQLITE_ERROR ) rc = FTS5_CORRUPT;
+
+    if( rc==SQLITE_OK ){
+      u8 *aOut = 0;               /* Read blob data into this buffer */
+      int nByte = sqlite3_blob_bytes(p->pReader);
+      int szData = (sizeof(Fts5Data) + 7) & ~7;
+      sqlite3_int64 nAlloc = szData + nByte + FTS5_DATA_PADDING;
+      pRet = (Fts5Data*)sqlite3_malloc64(nAlloc);
+      if( pRet ){
+        pRet->nn = nByte;
+        aOut = pRet->p = (u8*)pRet + szData;
+      }else{
+        rc = SQLITE_NOMEM;
+      }
+
+      if( rc==SQLITE_OK ){
+        rc = sqlite3_blob_read(p->pReader, aOut, nByte, 0);
+      }
+      if( rc!=SQLITE_OK ){
+        sqlite3_free(pRet);
+        pRet = 0;
+      }else{
+        /* TODO1: Fix this */
+        pRet->p[nByte] = 0x00;
+        pRet->p[nByte+1] = 0x00;
+        pRet->szLeaf = fts5GetU16(&pRet->p[2]);
+      }
+    }
+    p->rc = rc;
+    p->nRead++;
+  }
+
+  assert( (pRet==0)==(p->rc!=SQLITE_OK) );
+  assert( pRet==0 || EIGHT_BYTE_ALIGNMENT( pRet->p ) );
+  return pRet;
+}
+
+
+/*
+** Release a reference to data record returned by an earlier call to
+** fts5DataRead().
+*/
+static void fts5DataRelease(Fts5Data *pData){
+  sqlite3_free(pData);
+}
+
+static Fts5Data *fts5LeafRead(Fts5Index *p, i64 iRowid){
+  Fts5Data *pRet = fts5DataRead(p, iRowid);
+  if( pRet ){
+    if( pRet->nn<4 || pRet->szLeaf>pRet->nn ){
+      p->rc = FTS5_CORRUPT;
+      fts5DataRelease(pRet);
+      pRet = 0;
+    }
+  }
+  return pRet;
+}
+
+static int fts5IndexPrepareStmt(
+  Fts5Index *p,
+  sqlite3_stmt **ppStmt,
+  char *zSql
+){
+  if( p->rc==SQLITE_OK ){
+    if( zSql ){
+      p->rc = sqlite3_prepare_v3(p->pConfig->db, zSql, -1,
+          SQLITE_PREPARE_PERSISTENT|SQLITE_PREPARE_NO_VTAB,
+          ppStmt, 0);
+    }else{
+      p->rc = SQLITE_NOMEM;
+    }
+  }
+  sqlite3_free(zSql);
+  return p->rc;
+}
+
+
+/*
+** INSERT OR REPLACE a record into the %_data table.
+*/
+static void fts5DataWrite(Fts5Index *p, i64 iRowid, const u8 *pData, int nData){
+  if( p->rc!=SQLITE_OK ) return;
+
+  if( p->pWriter==0 ){
+    Fts5Config *pConfig = p->pConfig;
+    fts5IndexPrepareStmt(p, &p->pWriter, sqlite3_mprintf(
+          "REPLACE INTO '%q'.'%q_data'(id, block) VALUES(?,?)", 
+          pConfig->zDb, pConfig->zName
+    ));
+    if( p->rc ) return;
+  }
+
+  sqlite3_bind_int64(p->pWriter, 1, iRowid);
+  sqlite3_bind_blob(p->pWriter, 2, pData, nData, SQLITE_STATIC);
+  sqlite3_step(p->pWriter);
+  p->rc = sqlite3_reset(p->pWriter);
+  sqlite3_bind_null(p->pWriter, 2);
+}
+
+/*
+** Execute the following SQL:
+**
+**     DELETE FROM %_data WHERE id BETWEEN $iFirst AND $iLast
+*/
+static void fts5DataDelete(Fts5Index *p, i64 iFirst, i64 iLast){
+  if( p->rc!=SQLITE_OK ) return;
+
+  if( p->pDeleter==0 ){
+    Fts5Config *pConfig = p->pConfig;
+    char *zSql = sqlite3_mprintf(
+        "DELETE FROM '%q'.'%q_data' WHERE id>=? AND id<=?", 
+          pConfig->zDb, pConfig->zName
+    );
+    if( fts5IndexPrepareStmt(p, &p->pDeleter, zSql) ) return;
+  }
+
+  sqlite3_bind_int64(p->pDeleter, 1, iFirst);
+  sqlite3_bind_int64(p->pDeleter, 2, iLast);
+  sqlite3_step(p->pDeleter);
+  p->rc = sqlite3_reset(p->pDeleter);
+}
+
+/*
+** Remove all records associated with segment iSegid.
+*/
+static void fts5DataRemoveSegment(Fts5Index *p, Fts5StructureSegment *pSeg){
+  int iSegid = pSeg->iSegid;
+  i64 iFirst = FTS5_SEGMENT_ROWID(iSegid, 0);
+  i64 iLast = FTS5_SEGMENT_ROWID(iSegid+1, 0)-1;
+  fts5DataDelete(p, iFirst, iLast);
+
+  if( pSeg->nPgTombstone ){
+    i64 iTomb1 = FTS5_TOMBSTONE_ROWID(iSegid, 0);
+    i64 iTomb2 = FTS5_TOMBSTONE_ROWID(iSegid, pSeg->nPgTombstone-1);
+    fts5DataDelete(p, iTomb1, iTomb2);
+  }
+  if( p->pIdxDeleter==0 ){
+    Fts5Config *pConfig = p->pConfig;
+    fts5IndexPrepareStmt(p, &p->pIdxDeleter, sqlite3_mprintf(
+          "DELETE FROM '%q'.'%q_idx' WHERE segid=?",
+          pConfig->zDb, pConfig->zName
+    ));
+  }
+  if( p->rc==SQLITE_OK ){
+    sqlite3_bind_int(p->pIdxDeleter, 1, iSegid);
+    sqlite3_step(p->pIdxDeleter);
+    p->rc = sqlite3_reset(p->pIdxDeleter);
+  }
+}
+
+/*
+** Release a reference to an Fts5Structure object returned by an earlier 
+** call to fts5StructureRead() or fts5StructureDecode().
+*/
+static void fts5StructureRelease(Fts5Structure *pStruct){
+  if( pStruct && 0>=(--pStruct->nRef) ){
+    int i;
+    assert( pStruct->nRef==0 );
+    for(i=0; i<pStruct->nLevel; i++){
+      sqlite3_free(pStruct->aLevel[i].aSeg);
+    }
+    sqlite3_free(pStruct);
+  }
+}
+
+static void fts5StructureRef(Fts5Structure *pStruct){
+  pStruct->nRef++;
+}
+
+void *sqlite3Fts5StructureRef(Fts5Index *p){
+  fts5StructureRef(p->pStruct);
+  return (void*)p->pStruct;
+}
+void sqlite3Fts5StructureRelease(void *p){
+  if( p ){
+    fts5StructureRelease((Fts5Structure*)p);
+  }
+}
+int sqlite3Fts5StructureTest(Fts5Index *p, void *pStruct){
+  if( p->pStruct!=(Fts5Structure*)pStruct ){
+    return SQLITE_ABORT;
+  }
+  return SQLITE_OK;
+}
+
+/*
+** Ensure that structure object (*pp) is writable.
+**
+** This function is a no-op if (*pRc) is not SQLITE_OK when it is called. If
+** an error occurs, (*pRc) is set to an SQLite error code before returning.
+*/
+static void fts5StructureMakeWritable(int *pRc, Fts5Structure **pp){
+  Fts5Structure *p = *pp;
+  if( *pRc==SQLITE_OK && p->nRef>1 ){
+    i64 nByte = sizeof(Fts5Structure)+(p->nLevel-1)*sizeof(Fts5StructureLevel);
+    Fts5Structure *pNew;
+    pNew = (Fts5Structure*)sqlite3Fts5MallocZero(pRc, nByte);
+    if( pNew ){
+      int i;
+      memcpy(pNew, p, nByte);
+      for(i=0; i<p->nLevel; i++) pNew->aLevel[i].aSeg = 0;
+      for(i=0; i<p->nLevel; i++){
+        Fts5StructureLevel *pLvl = &pNew->aLevel[i];
+        nByte = sizeof(Fts5StructureSegment) * pNew->aLevel[i].nSeg;
+        pLvl->aSeg = (Fts5StructureSegment*)sqlite3Fts5MallocZero(pRc, nByte);
+        if( pLvl->aSeg==0 ){
+          for(i=0; i<p->nLevel; i++){
+            sqlite3_free(pNew->aLevel[i].aSeg);
+          }
+          sqlite3_free(pNew);
+          return;
+        }
+        memcpy(pLvl->aSeg, p->aLevel[i].aSeg, nByte);
+      }
+      p->nRef--;
+      pNew->nRef = 1;
+    }
+    *pp = pNew;
+  }
+}
+
+/*
+** Deserialize and return the structure record currently stored in serialized
+** form within buffer pData/nData.
+**
+** The Fts5Structure.aLevel[] and each Fts5StructureLevel.aSeg[] array
+** are over-allocated by one slot. This allows the structure contents
+** to be more easily edited.
+**
+** If an error occurs, *ppOut is set to NULL and an SQLite error code
+** returned. Otherwise, *ppOut is set to point to the new object and
+** SQLITE_OK returned.
+*/
+static int fts5StructureDecode(
+  const u8 *pData,                /* Buffer containing serialized structure */
+  int nData,                      /* Size of buffer pData in bytes */
+  int *piCookie,                  /* Configuration cookie value */
+  Fts5Structure **ppOut           /* OUT: Deserialized object */
+){
+  int rc = SQLITE_OK;
+  int i = 0;
+  int iLvl;
+  int nLevel = 0;
+  int nSegment = 0;
+  sqlite3_int64 nByte;            /* Bytes of space to allocate at pRet */
+  Fts5Structure *pRet = 0;        /* Structure object to return */
+  int bStructureV2 = 0;           /* True for FTS5_STRUCTURE_V2 */
+  u64 nOriginCntr = 0;            /* Largest origin value seen so far */
+
+  /* Grab the cookie value */
+  if( piCookie ) *piCookie = sqlite3Fts5Get32(pData);
+  i = 4;
+
+  /* Check if this is a V2 structure record. Set bStructureV2 if it is. */
+  if( 0==memcmp(&pData[i], FTS5_STRUCTURE_V2, 4) ){
+    i += 4;
+    bStructureV2 = 1;
+  }
+
+  /* Read the total number of levels and segments from the start of the
+  ** structure record.  */
+  i += fts5GetVarint32(&pData[i], nLevel);
+  i += fts5GetVarint32(&pData[i], nSegment);
+  if( nLevel>FTS5_MAX_SEGMENT   || nLevel<0
+   || nSegment>FTS5_MAX_SEGMENT || nSegment<0
+  ){
+    return FTS5_CORRUPT;
+  }
+  nByte = (
+      sizeof(Fts5Structure) +                    /* Main structure */
+      sizeof(Fts5StructureLevel) * (nLevel-1)    /* aLevel[] array */
+  );
+  pRet = (Fts5Structure*)sqlite3Fts5MallocZero(&rc, nByte);
+
+  if( pRet ){
+    pRet->nRef = 1;
+    pRet->nLevel = nLevel;
+    pRet->nSegment = nSegment;
+    i += sqlite3Fts5GetVarint(&pData[i], &pRet->nWriteCounter);
+
+    for(iLvl=0; rc==SQLITE_OK && iLvl<nLevel; iLvl++){
+      Fts5StructureLevel *pLvl = &pRet->aLevel[iLvl];
+      int nTotal = 0;
+      int iSeg;
+
+      if( i>=nData ){
+        rc = FTS5_CORRUPT;
+      }else{
+        i += fts5GetVarint32(&pData[i], pLvl->nMerge);
+        i += fts5GetVarint32(&pData[i], nTotal);
+        if( nTotal<pLvl->nMerge ) rc = FTS5_CORRUPT;
+        pLvl->aSeg = (Fts5StructureSegment*)sqlite3Fts5MallocZero(&rc, 
+            nTotal * sizeof(Fts5StructureSegment)
+        );
+        nSegment -= nTotal;
+      }
+
+      if( rc==SQLITE_OK ){
+        pLvl->nSeg = nTotal;
+        for(iSeg=0; iSeg<nTotal; iSeg++){
+          Fts5StructureSegment *pSeg = &pLvl->aSeg[iSeg];
+          if( i>=nData ){
+            rc = FTS5_CORRUPT;
+            break;
+          }
+          assert( pSeg!=0 );
+          i += fts5GetVarint32(&pData[i], pSeg->iSegid);
+          i += fts5GetVarint32(&pData[i], pSeg->pgnoFirst);
+          i += fts5GetVarint32(&pData[i], pSeg->pgnoLast);
+          if( bStructureV2 ){
+            i += fts5GetVarint(&pData[i], &pSeg->iOrigin1);
+            i += fts5GetVarint(&pData[i], &pSeg->iOrigin2);
+            i += fts5GetVarint32(&pData[i], pSeg->nPgTombstone);
+            i += fts5GetVarint(&pData[i], &pSeg->nEntryTombstone);
+            i += fts5GetVarint(&pData[i], &pSeg->nEntry);
+            nOriginCntr = MAX(nOriginCntr, pSeg->iOrigin2);
+          }
+          if( pSeg->pgnoLast<pSeg->pgnoFirst ){
+            rc = FTS5_CORRUPT;
+            break;
+          }
+        }
+        if( iLvl>0 && pLvl[-1].nMerge && nTotal==0 ) rc = FTS5_CORRUPT;
+        if( iLvl==nLevel-1 && pLvl->nMerge ) rc = FTS5_CORRUPT;
+      }
+    }
+    if( nSegment!=0 && rc==SQLITE_OK ) rc = FTS5_CORRUPT;
+    if( bStructureV2 ){
+      pRet->nOriginCntr = nOriginCntr+1;
+    }
+
+    if( rc!=SQLITE_OK ){
+      fts5StructureRelease(pRet);
+      pRet = 0;
+    }
+  }
+
+  *ppOut = pRet;
+  return rc;
+}
+
+/*
+** Add a level to the Fts5Structure.aLevel[] array of structure object
+** (*ppStruct).
+*/
+static void fts5StructureAddLevel(int *pRc, Fts5Structure **ppStruct){
+  fts5StructureMakeWritable(pRc, ppStruct);
+  assert( (ppStruct!=0 && (*ppStruct)!=0) || (*pRc)!=SQLITE_OK );
+  if( *pRc==SQLITE_OK ){
+    Fts5Structure *pStruct = *ppStruct;
+    int nLevel = pStruct->nLevel;
+    sqlite3_int64 nByte = (
+        sizeof(Fts5Structure) +                  /* Main structure */
+        sizeof(Fts5StructureLevel) * (nLevel+1)  /* aLevel[] array */
+    );
+
+    pStruct = sqlite3_realloc64(pStruct, nByte);
+    if( pStruct ){
+      memset(&pStruct->aLevel[nLevel], 0, sizeof(Fts5StructureLevel));
+      pStruct->nLevel++;
+      *ppStruct = pStruct;
+    }else{
+      *pRc = SQLITE_NOMEM;
+    }
+  }
+}
+
+/*
+** Extend level iLvl so that there is room for at least nExtra more
+** segments.
+*/
+static void fts5StructureExtendLevel(
+  int *pRc, 
+  Fts5Structure *pStruct, 
+  int iLvl, 
+  int nExtra, 
+  int bInsert
+){
+  if( *pRc==SQLITE_OK ){
+    Fts5StructureLevel *pLvl = &pStruct->aLevel[iLvl];
+    Fts5StructureSegment *aNew;
+    sqlite3_int64 nByte;
+
+    nByte = (pLvl->nSeg + nExtra) * sizeof(Fts5StructureSegment);
+    aNew = sqlite3_realloc64(pLvl->aSeg, nByte);
+    if( aNew ){
+      if( bInsert==0 ){
+        memset(&aNew[pLvl->nSeg], 0, sizeof(Fts5StructureSegment) * nExtra);
+      }else{
+        int nMove = pLvl->nSeg * sizeof(Fts5StructureSegment);
+        memmove(&aNew[nExtra], aNew, nMove);
+        memset(aNew, 0, sizeof(Fts5StructureSegment) * nExtra);
+      }
+      pLvl->aSeg = aNew;
+    }else{
+      *pRc = SQLITE_NOMEM;
+    }
+  }
+}
+
+static Fts5Structure *fts5StructureReadUncached(Fts5Index *p){
+  Fts5Structure *pRet = 0;
+  Fts5Config *pConfig = p->pConfig;
+  int iCookie;                    /* Configuration cookie */
+  Fts5Data *pData;
+
+  pData = fts5DataRead(p, FTS5_STRUCTURE_ROWID);
+  if( p->rc==SQLITE_OK ){
+    /* TODO: Do we need this if the leaf-index is appended? Probably... */
+    memset(&pData->p[pData->nn], 0, FTS5_DATA_PADDING);
+    p->rc = fts5StructureDecode(pData->p, pData->nn, &iCookie, &pRet);
+    if( p->rc==SQLITE_OK && (pConfig->pgsz==0 || pConfig->iCookie!=iCookie) ){
+      p->rc = sqlite3Fts5ConfigLoad(pConfig, iCookie);
+    }
+    fts5DataRelease(pData);
+    if( p->rc!=SQLITE_OK ){
+      fts5StructureRelease(pRet);
+      pRet = 0;
+    }
+  }
+
+  return pRet;
+}
+
+static i64 fts5IndexDataVersion(Fts5Index *p){
+  i64 iVersion = 0;
+
+  if( p->rc==SQLITE_OK ){
+    if( p->pDataVersion==0 ){
+      p->rc = fts5IndexPrepareStmt(p, &p->pDataVersion, 
+          sqlite3_mprintf("PRAGMA %Q.data_version", p->pConfig->zDb)
+          );
+      if( p->rc ) return 0;
+    }
+
+    if( SQLITE_ROW==sqlite3_step(p->pDataVersion) ){
+      iVersion = sqlite3_column_int64(p->pDataVersion, 0);
+    }
+    p->rc = sqlite3_reset(p->pDataVersion);
+  }
+
+  return iVersion;
+}
+
+/*
+** Read, deserialize and return the structure record.
+**
+** The Fts5Structure.aLevel[] and each Fts5StructureLevel.aSeg[] array
+** are over-allocated as described for function fts5StructureDecode() 
+** above.
+**
+** If an error occurs, NULL is returned and an error code left in the
+** Fts5Index handle. If an error has already occurred when this function
+** is called, it is a no-op.
+*/
+static Fts5Structure *fts5StructureRead(Fts5Index *p){
+
+  if( p->pStruct==0 ){
+    p->iStructVersion = fts5IndexDataVersion(p);
+    if( p->rc==SQLITE_OK ){
+      p->pStruct = fts5StructureReadUncached(p);
+    }
+  }
+
+#if 0
+  else{
+    Fts5Structure *pTest = fts5StructureReadUncached(p);
+    if( pTest ){
+      int i, j;
+      assert_nc( p->pStruct->nSegment==pTest->nSegment );
+      assert_nc( p->pStruct->nLevel==pTest->nLevel );
+      for(i=0; i<pTest->nLevel; i++){
+        assert_nc( p->pStruct->aLevel[i].nMerge==pTest->aLevel[i].nMerge );
+        assert_nc( p->pStruct->aLevel[i].nSeg==pTest->aLevel[i].nSeg );
+        for(j=0; j<pTest->aLevel[i].nSeg; j++){
+          Fts5StructureSegment *p1 = &pTest->aLevel[i].aSeg[j];
+          Fts5StructureSegment *p2 = &p->pStruct->aLevel[i].aSeg[j];
+          assert_nc( p1->iSegid==p2->iSegid );
+          assert_nc( p1->pgnoFirst==p2->pgnoFirst );
+          assert_nc( p1->pgnoLast==p2->pgnoLast );
+        }
+      }
+      fts5StructureRelease(pTest);
+    }
+  }
+#endif
+
+  if( p->rc!=SQLITE_OK ) return 0;
+  assert( p->iStructVersion!=0 );
+  assert( p->pStruct!=0 );
+  fts5StructureRef(p->pStruct);
+  return p->pStruct;
+}
+
+static void fts5StructureInvalidate(Fts5Index *p){
+  if( p->pStruct ){
+    fts5StructureRelease(p->pStruct);
+    p->pStruct = 0;
+  }
+}
+
+/*
+** Return the total number of segments in index structure pStruct. This
+** function is only ever used as part of assert() conditions.
+*/
+#ifdef SQLITE_DEBUG
+static int fts5StructureCountSegments(Fts5Structure *pStruct){
+  int nSegment = 0;               /* Total number of segments */
+  if( pStruct ){
+    int iLvl;                     /* Used to iterate through levels */
+    for(iLvl=0; iLvl<pStruct->nLevel; iLvl++){
+      nSegment += pStruct->aLevel[iLvl].nSeg;
+    }
+  }
+
+  return nSegment;
+}
+#endif
+
+#define fts5BufferSafeAppendBlob(pBuf, pBlob, nBlob) {     \
+  assert( (pBuf)->nSpace>=((pBuf)->n+nBlob) );             \
+  memcpy(&(pBuf)->p[(pBuf)->n], pBlob, nBlob);             \
+  (pBuf)->n += nBlob;                                      \
+}
+
+#define fts5BufferSafeAppendVarint(pBuf, iVal) {                \
+  (pBuf)->n += sqlite3Fts5PutVarint(&(pBuf)->p[(pBuf)->n], (iVal));  \
+  assert( (pBuf)->nSpace>=(pBuf)->n );                          \
+}
+
+
+/*
+** Serialize and store the "structure" record.
+**
+** If an error occurs, leave an error code in the Fts5Index object. If an
+** error has already occurred, this function is a no-op.
+*/
+static void fts5StructureWrite(Fts5Index *p, Fts5Structure *pStruct){
+  if( p->rc==SQLITE_OK ){
+    Fts5Buffer buf;               /* Buffer to serialize record into */
+    int iLvl;                     /* Used to iterate through levels */
+    int iCookie;                  /* Cookie value to store */
+    int nHdr = (pStruct->nOriginCntr>0 ? (4+4+9+9+9) : (4+9+9));
+
+    assert( pStruct->nSegment==fts5StructureCountSegments(pStruct) );
+    memset(&buf, 0, sizeof(Fts5Buffer));
+
+    /* Append the current configuration cookie */
+    iCookie = p->pConfig->iCookie;
+    if( iCookie<0 ) iCookie = 0;
+
+    if( 0==sqlite3Fts5BufferSize(&p->rc, &buf, nHdr) ){
+      sqlite3Fts5Put32(buf.p, iCookie);
+      buf.n = 4;
+      if( pStruct->nOriginCntr>0 ){
+        fts5BufferSafeAppendBlob(&buf, FTS5_STRUCTURE_V2, 4);
+      }
+      fts5BufferSafeAppendVarint(&buf, pStruct->nLevel);
+      fts5BufferSafeAppendVarint(&buf, pStruct->nSegment);
+      fts5BufferSafeAppendVarint(&buf, (i64)pStruct->nWriteCounter);
+    }
+
+    for(iLvl=0; iLvl<pStruct->nLevel; iLvl++){
+      int iSeg;                     /* Used to iterate through segments */
+      Fts5StructureLevel *pLvl = &pStruct->aLevel[iLvl];
+      fts5BufferAppendVarint(&p->rc, &buf, pLvl->nMerge);
+      fts5BufferAppendVarint(&p->rc, &buf, pLvl->nSeg);
+      assert( pLvl->nMerge<=pLvl->nSeg );
+
+      for(iSeg=0; iSeg<pLvl->nSeg; iSeg++){
+        Fts5StructureSegment *pSeg = &pLvl->aSeg[iSeg];
+        fts5BufferAppendVarint(&p->rc, &buf, pSeg->iSegid);
+        fts5BufferAppendVarint(&p->rc, &buf, pSeg->pgnoFirst);
+        fts5BufferAppendVarint(&p->rc, &buf, pSeg->pgnoLast);
+        if( pStruct->nOriginCntr>0 ){
+          fts5BufferAppendVarint(&p->rc, &buf, pSeg->iOrigin1);
+          fts5BufferAppendVarint(&p->rc, &buf, pSeg->iOrigin2);
+          fts5BufferAppendVarint(&p->rc, &buf, pSeg->nPgTombstone);
+          fts5BufferAppendVarint(&p->rc, &buf, pSeg->nEntryTombstone);
+          fts5BufferAppendVarint(&p->rc, &buf, pSeg->nEntry);
+        }
+      }
+    }
+
+    fts5DataWrite(p, FTS5_STRUCTURE_ROWID, buf.p, buf.n);
+    fts5BufferFree(&buf);
+  }
+}
+
+#if 0
+static void fts5DebugStructure(int*,Fts5Buffer*,Fts5Structure*);
+static void fts5PrintStructure(const char *zCaption, Fts5Structure *pStruct){
+  int rc = SQLITE_OK;
+  Fts5Buffer buf;
+  memset(&buf, 0, sizeof(buf));
+  fts5DebugStructure(&rc, &buf, pStruct);
+  fprintf(stdout, "%s: %s\n", zCaption, buf.p);
+  fflush(stdout);
+  fts5BufferFree(&buf);
+}
+#else
+# define fts5PrintStructure(x,y)
+#endif
+
+static int fts5SegmentSize(Fts5StructureSegment *pSeg){
+  return 1 + pSeg->pgnoLast - pSeg->pgnoFirst;
+}
+
+/*
+** Return a copy of index structure pStruct. Except, promote as many 
+** segments as possible to level iPromote. If an OOM occurs, NULL is 
+** returned.
+*/
+static void fts5StructurePromoteTo(
+  Fts5Index *p,
+  int iPromote,
+  int szPromote,
+  Fts5Structure *pStruct
+){
+  int il, is;
+  Fts5StructureLevel *pOut = &pStruct->aLevel[iPromote];
+
+  if( pOut->nMerge==0 ){
+    for(il=iPromote+1; il<pStruct->nLevel; il++){
+      Fts5StructureLevel *pLvl = &pStruct->aLevel[il];
+      if( pLvl->nMerge ) return;
+      for(is=pLvl->nSeg-1; is>=0; is--){
+        int sz = fts5SegmentSize(&pLvl->aSeg[is]);
+        if( sz>szPromote ) return;
+        fts5StructureExtendLevel(&p->rc, pStruct, iPromote, 1, 1);
+        if( p->rc ) return;
+        memcpy(pOut->aSeg, &pLvl->aSeg[is], sizeof(Fts5StructureSegment));
+        pOut->nSeg++;
+        pLvl->nSeg--;
+      }
+    }
+  }
+}
+
+/*
+** A new segment has just been written to level iLvl of index structure
+** pStruct. This function determines if any segments should be promoted
+** as a result. Segments are promoted in two scenarios:
+**
+**   a) If the segment just written is smaller than one or more segments
+**      within the previous populated level, it is promoted to the previous
+**      populated level.
+**
+**   b) If the segment just written is larger than the newest segment on
+**      the next populated level, then that segment, and any other adjacent
+**      segments that are also smaller than the one just written, are 
+**      promoted. 
+**
+** If one or more segments are promoted, the structure object is updated
+** to reflect this.
+*/
+static void fts5StructurePromote(
+  Fts5Index *p,                   /* FTS5 backend object */
+  int iLvl,                       /* Index level just updated */
+  Fts5Structure *pStruct          /* Index structure */
+){
+  if( p->rc==SQLITE_OK ){
+    int iTst;
+    int iPromote = -1;
+    int szPromote = 0;            /* Promote anything this size or smaller */
+    Fts5StructureSegment *pSeg;   /* Segment just written */
+    int szSeg;                    /* Size of segment just written */
+    int nSeg = pStruct->aLevel[iLvl].nSeg;
+
+    if( nSeg==0 ) return;
+    pSeg = &pStruct->aLevel[iLvl].aSeg[pStruct->aLevel[iLvl].nSeg-1];
+    szSeg = (1 + pSeg->pgnoLast - pSeg->pgnoFirst);
+
+    /* Check for condition (a) */
+    for(iTst=iLvl-1; iTst>=0 && pStruct->aLevel[iTst].nSeg==0; iTst--);
+    if( iTst>=0 ){
+      int i;
+      int szMax = 0;
+      Fts5StructureLevel *pTst = &pStruct->aLevel[iTst];
+      assert( pTst->nMerge==0 );
+      for(i=0; i<pTst->nSeg; i++){
+        int sz = pTst->aSeg[i].pgnoLast - pTst->aSeg[i].pgnoFirst + 1;
+        if( sz>szMax ) szMax = sz;
+      }
+      if( szMax>=szSeg ){
+        /* Condition (a) is true. Promote the newest segment on level 
+        ** iLvl to level iTst.  */
+        iPromote = iTst;
+        szPromote = szMax;
+      }
+    }
+
+    /* If condition (a) is not met, assume (b) is true. StructurePromoteTo()
+    ** is a no-op if it is not.  */
+    if( iPromote<0 ){
+      iPromote = iLvl;
+      szPromote = szSeg;
+    }
+    fts5StructurePromoteTo(p, iPromote, szPromote, pStruct);
+  }
+}
+
+
+/*
+** Advance the iterator passed as the only argument. If the end of the 
+** doclist-index page is reached, return non-zero.
+*/
+static int fts5DlidxLvlNext(Fts5DlidxLvl *pLvl){
+  Fts5Data *pData = pLvl->pData;
+
+  if( pLvl->iOff==0 ){
+    assert( pLvl->bEof==0 );
+    pLvl->iOff = 1;
+    pLvl->iOff += fts5GetVarint32(&pData->p[1], pLvl->iLeafPgno);
+    pLvl->iOff += fts5GetVarint(&pData->p[pLvl->iOff], (u64*)&pLvl->iRowid);
+    pLvl->iFirstOff = pLvl->iOff;
+  }else{
+    int iOff;
+    for(iOff=pLvl->iOff; iOff<pData->nn; iOff++){
+      if( pData->p[iOff] ) break; 
+    }
+
+    if( iOff<pData->nn ){
+      u64 iVal;
+      pLvl->iLeafPgno += (iOff - pLvl->iOff) + 1;
+      iOff += fts5GetVarint(&pData->p[iOff], &iVal);
+      pLvl->iRowid += iVal;
+      pLvl->iOff = iOff;
+    }else{
+      pLvl->bEof = 1;
+    }
+  }
+
+  return pLvl->bEof;
+}
+
+/*
+** Advance the iterator passed as the only argument.
+*/
+static int fts5DlidxIterNextR(Fts5Index *p, Fts5DlidxIter *pIter, int iLvl){
+  Fts5DlidxLvl *pLvl = &pIter->aLvl[iLvl];
+
+  assert( iLvl<pIter->nLvl );
+  if( fts5DlidxLvlNext(pLvl) ){
+    if( (iLvl+1) < pIter->nLvl ){
+      fts5DlidxIterNextR(p, pIter, iLvl+1);
+      if( pLvl[1].bEof==0 ){
+        fts5DataRelease(pLvl->pData);
+        memset(pLvl, 0, sizeof(Fts5DlidxLvl));
+        pLvl->pData = fts5DataRead(p, 
+            FTS5_DLIDX_ROWID(pIter->iSegid, iLvl, pLvl[1].iLeafPgno)
+        );
+        if( pLvl->pData ) fts5DlidxLvlNext(pLvl);
+      }
+    }
+  }
+
+  return pIter->aLvl[0].bEof;
+}
+static int fts5DlidxIterNext(Fts5Index *p, Fts5DlidxIter *pIter){
+  return fts5DlidxIterNextR(p, pIter, 0);
+}
+
+/*
+** The iterator passed as the first argument has the following fields set
+** as follows. This function sets up the rest of the iterator so that it
+** points to the first rowid in the doclist-index.
+**
+**   pData:
+**     pointer to doclist-index record, 
+**
+** When this function is called pIter->iLeafPgno is the page number the
+** doclist is associated with (the one featuring the term).
+*/
+static int fts5DlidxIterFirst(Fts5DlidxIter *pIter){
+  int i;
+  for(i=0; i<pIter->nLvl; i++){
+    fts5DlidxLvlNext(&pIter->aLvl[i]);
+  }
+  return pIter->aLvl[0].bEof;
+}
+
+
+static int fts5DlidxIterEof(Fts5Index *p, Fts5DlidxIter *pIter){
+  return p->rc!=SQLITE_OK || pIter->aLvl[0].bEof;
+}
+
+static void fts5DlidxIterLast(Fts5Index *p, Fts5DlidxIter *pIter){
+  int i;
+
+  /* Advance each level to the last entry on the last page */
+  for(i=pIter->nLvl-1; p->rc==SQLITE_OK && i>=0; i--){
+    Fts5DlidxLvl *pLvl = &pIter->aLvl[i];
+    while( fts5DlidxLvlNext(pLvl)==0 );
+    pLvl->bEof = 0;
+
+    if( i>0 ){
+      Fts5DlidxLvl *pChild = &pLvl[-1];
+      fts5DataRelease(pChild->pData);
+      memset(pChild, 0, sizeof(Fts5DlidxLvl));
+      pChild->pData = fts5DataRead(p, 
+          FTS5_DLIDX_ROWID(pIter->iSegid, i-1, pLvl->iLeafPgno)
+      );
+    }
+  }
+}
+
+/*
+** Move the iterator passed as the only argument to the previous entry.
+*/
+static int fts5DlidxLvlPrev(Fts5DlidxLvl *pLvl){
+  int iOff = pLvl->iOff;
+
+  assert( pLvl->bEof==0 );
+  if( iOff<=pLvl->iFirstOff ){
+    pLvl->bEof = 1;
+  }else{
+    u8 *a = pLvl->pData->p;
+
+    pLvl->iOff = 0;
+    fts5DlidxLvlNext(pLvl);
+    while( 1 ){
+      int nZero = 0;
+      int ii = pLvl->iOff;
+      u64 delta = 0;
+
+      while( a[ii]==0 ){
+        nZero++;
+        ii++;
+      }
+      ii += sqlite3Fts5GetVarint(&a[ii], &delta);
+
+      if( ii>=iOff ) break;
+      pLvl->iLeafPgno += nZero+1;
+      pLvl->iRowid += delta;
+      pLvl->iOff = ii;
+    }
+  }
+
+  return pLvl->bEof;
+}
+
+static int fts5DlidxIterPrevR(Fts5Index *p, Fts5DlidxIter *pIter, int iLvl){
+  Fts5DlidxLvl *pLvl = &pIter->aLvl[iLvl];
+
+  assert( iLvl<pIter->nLvl );
+  if( fts5DlidxLvlPrev(pLvl) ){
+    if( (iLvl+1) < pIter->nLvl ){
+      fts5DlidxIterPrevR(p, pIter, iLvl+1);
+      if( pLvl[1].bEof==0 ){
+        fts5DataRelease(pLvl->pData);
+        memset(pLvl, 0, sizeof(Fts5DlidxLvl));
+        pLvl->pData = fts5DataRead(p, 
+            FTS5_DLIDX_ROWID(pIter->iSegid, iLvl, pLvl[1].iLeafPgno)
+        );
+        if( pLvl->pData ){
+          while( fts5DlidxLvlNext(pLvl)==0 );
+          pLvl->bEof = 0;
+        }
+      }
+    }
+  }
+
+  return pIter->aLvl[0].bEof;
+}
+static int fts5DlidxIterPrev(Fts5Index *p, Fts5DlidxIter *pIter){
+  return fts5DlidxIterPrevR(p, pIter, 0);
+}
+
+/*
+** Free a doclist-index iterator object allocated by fts5DlidxIterInit().
+*/
+static void fts5DlidxIterFree(Fts5DlidxIter *pIter){
+  if( pIter ){
+    int i;
+    for(i=0; i<pIter->nLvl; i++){
+      fts5DataRelease(pIter->aLvl[i].pData);
+    }
+    sqlite3_free(pIter);
+  }
+}
+
+static Fts5DlidxIter *fts5DlidxIterInit(
+  Fts5Index *p,                   /* Fts5 Backend to iterate within */
+  int bRev,                       /* True for ORDER BY ASC */
+  int iSegid,                     /* Segment id */
+  int iLeafPg                     /* Leaf page number to load dlidx for */
+){
+  Fts5DlidxIter *pIter = 0;
+  int i;
+  int bDone = 0;
+
+  for(i=0; p->rc==SQLITE_OK && bDone==0; i++){
+    sqlite3_int64 nByte = sizeof(Fts5DlidxIter) + i * sizeof(Fts5DlidxLvl);
+    Fts5DlidxIter *pNew;
+
+    pNew = (Fts5DlidxIter*)sqlite3_realloc64(pIter, nByte);
+    if( pNew==0 ){
+      p->rc = SQLITE_NOMEM;
+    }else{
+      i64 iRowid = FTS5_DLIDX_ROWID(iSegid, i, iLeafPg);
+      Fts5DlidxLvl *pLvl = &pNew->aLvl[i];
+      pIter = pNew;
+      memset(pLvl, 0, sizeof(Fts5DlidxLvl));
+      pLvl->pData = fts5DataRead(p, iRowid);
+      if( pLvl->pData && (pLvl->pData->p[0] & 0x0001)==0 ){
+        bDone = 1;
+      }
+      pIter->nLvl = i+1;
+    }
+  }
+
+  if( p->rc==SQLITE_OK ){
+    pIter->iSegid = iSegid;
+    if( bRev==0 ){
+      fts5DlidxIterFirst(pIter);
+    }else{
+      fts5DlidxIterLast(p, pIter);
+    }
+  }
+
+  if( p->rc!=SQLITE_OK ){
+    fts5DlidxIterFree(pIter);
+    pIter = 0;
+  }
+
+  return pIter;
+}
+
+static i64 fts5DlidxIterRowid(Fts5DlidxIter *pIter){
+  return pIter->aLvl[0].iRowid;
+}
+static int fts5DlidxIterPgno(Fts5DlidxIter *pIter){
+  return pIter->aLvl[0].iLeafPgno;
+}
+
+/*
+** Load the next leaf page into the segment iterator.
+*/
+static void fts5SegIterNextPage(
+  Fts5Index *p,                   /* FTS5 backend object */
+  Fts5SegIter *pIter              /* Iterator to advance to next page */
+){
+  Fts5Data *pLeaf;
+  Fts5StructureSegment *pSeg = pIter->pSeg;
+  fts5DataRelease(pIter->pLeaf);
+  pIter->iLeafPgno++;
+  if( pIter->pNextLeaf ){
+    pIter->pLeaf = pIter->pNextLeaf;
+    pIter->pNextLeaf = 0;
+  }else if( pIter->iLeafPgno<=pSeg->pgnoLast ){
+    pIter->pLeaf = fts5LeafRead(p, 
+        FTS5_SEGMENT_ROWID(pSeg->iSegid, pIter->iLeafPgno)
+    );
+  }else{
+    pIter->pLeaf = 0;
+  }
+  pLeaf = pIter->pLeaf;
+
+  if( pLeaf ){
+    pIter->iPgidxOff = pLeaf->szLeaf;
+    if( fts5LeafIsTermless(pLeaf) ){
+      pIter->iEndofDoclist = pLeaf->nn+1;
+    }else{
+      pIter->iPgidxOff += fts5GetVarint32(&pLeaf->p[pIter->iPgidxOff],
+          pIter->iEndofDoclist
+      );
+    }
+  }
+}
+
+/*
+** Argument p points to a buffer containing a varint to be interpreted as a
+** position list size field. Read the varint and return the number of bytes
+** read. Before returning, set *pnSz to the number of bytes in the position
+** list, and *pbDel to true if the delete flag is set, or false otherwise.
+*/
+static int fts5GetPoslistSize(const u8 *p, int *pnSz, int *pbDel){
+  int nSz;
+  int n = 0;
+  fts5FastGetVarint32(p, n, nSz);
+  assert_nc( nSz>=0 );
+  *pnSz = nSz/2;
+  *pbDel = nSz & 0x0001;
+  return n;
+}
+
+/*
+** Fts5SegIter.iLeafOffset currently points to the first byte of a
+** position-list size field. Read the value of the field and store it
+** in the following variables:
+**
+**   Fts5SegIter.nPos
+**   Fts5SegIter.bDel
+**
+** Leave Fts5SegIter.iLeafOffset pointing to the first byte of the 
+** position list content (if any).
+*/
+static void fts5SegIterLoadNPos(Fts5Index *p, Fts5SegIter *pIter){
+  if( p->rc==SQLITE_OK ){
+    int iOff = pIter->iLeafOffset;  /* Offset to read at */
+    ASSERT_SZLEAF_OK(pIter->pLeaf);
+    if( p->pConfig->eDetail==FTS5_DETAIL_NONE ){
+      int iEod = MIN(pIter->iEndofDoclist, pIter->pLeaf->szLeaf);
+      pIter->bDel = 0;
+      pIter->nPos = 1;
+      if( iOff<iEod && pIter->pLeaf->p[iOff]==0 ){
+        pIter->bDel = 1;
+        iOff++;
+        if( iOff<iEod && pIter->pLeaf->p[iOff]==0 ){
+          pIter->nPos = 1;
+          iOff++;
+        }else{
+          pIter->nPos = 0;
+        }
+      }
+    }else{
+      int nSz;
+      fts5FastGetVarint32(pIter->pLeaf->p, iOff, nSz);
+      pIter->bDel = (nSz & 0x0001);
+      pIter->nPos = nSz>>1;
+      assert_nc( pIter->nPos>=0 );
+    }
+    pIter->iLeafOffset = iOff;
+  }
+}
+
+static void fts5SegIterLoadRowid(Fts5Index *p, Fts5SegIter *pIter){
+  u8 *a = pIter->pLeaf->p;        /* Buffer to read data from */
+  i64 iOff = pIter->iLeafOffset;
+
+  ASSERT_SZLEAF_OK(pIter->pLeaf);
+  while( iOff>=pIter->pLeaf->szLeaf ){
+    fts5SegIterNextPage(p, pIter);
+    if( pIter->pLeaf==0 ){
+      if( p->rc==SQLITE_OK ) p->rc = FTS5_CORRUPT;
+      return;
+    }
+    iOff = 4;
+    a = pIter->pLeaf->p;
+  }
+  iOff += sqlite3Fts5GetVarint(&a[iOff], (u64*)&pIter->iRowid);
+  pIter->iLeafOffset = iOff;
+}
+
+/*
+** Fts5SegIter.iLeafOffset currently points to the first byte of the 
+** "nSuffix" field of a term. Function parameter nKeep contains the value
+** of the "nPrefix" field (if there was one - it is passed 0 if this is
+** the first term in the segment).
+**
+** This function populates:
+**
+**   Fts5SegIter.term
+**   Fts5SegIter.rowid
+**
+** accordingly and leaves (Fts5SegIter.iLeafOffset) set to the content of
+** the first position list. The position list belonging to document 
+** (Fts5SegIter.iRowid).
+*/
+static void fts5SegIterLoadTerm(Fts5Index *p, Fts5SegIter *pIter, int nKeep){
+  u8 *a = pIter->pLeaf->p;        /* Buffer to read data from */
+  i64 iOff = pIter->iLeafOffset;  /* Offset to read at */
+  int nNew;                       /* Bytes of new data */
+
+  iOff += fts5GetVarint32(&a[iOff], nNew);
+  if( iOff+nNew>pIter->pLeaf->szLeaf || nKeep>pIter->term.n || nNew==0 ){
+    p->rc = FTS5_CORRUPT;
+    return;
+  }
+  pIter->term.n = nKeep;
+  fts5BufferAppendBlob(&p->rc, &pIter->term, nNew, &a[iOff]);
+  assert( pIter->term.n<=pIter->term.nSpace );
+  iOff += nNew;
+  pIter->iTermLeafOffset = iOff;
+  pIter->iTermLeafPgno = pIter->iLeafPgno;
+  pIter->iLeafOffset = iOff;
+
+  if( pIter->iPgidxOff>=pIter->pLeaf->nn ){
+    pIter->iEndofDoclist = pIter->pLeaf->nn+1;
+  }else{
+    int nExtra;
+    pIter->iPgidxOff += fts5GetVarint32(&a[pIter->iPgidxOff], nExtra);
+    pIter->iEndofDoclist += nExtra;
+  }
+
+  fts5SegIterLoadRowid(p, pIter);
+}
+
+static void fts5SegIterNext(Fts5Index*, Fts5SegIter*, int*);
+static void fts5SegIterNext_Reverse(Fts5Index*, Fts5SegIter*, int*);
+static void fts5SegIterNext_None(Fts5Index*, Fts5SegIter*, int*);
+
+static void fts5SegIterSetNext(Fts5Index *p, Fts5SegIter *pIter){
+  if( pIter->flags & FTS5_SEGITER_REVERSE ){
+    pIter->xNext = fts5SegIterNext_Reverse;
+  }else if( p->pConfig->eDetail==FTS5_DETAIL_NONE ){
+    pIter->xNext = fts5SegIterNext_None;
+  }else{
+    pIter->xNext = fts5SegIterNext;
+  }
+}
+
+/*
+** Allocate a tombstone hash page array object (pIter->pTombArray) for 
+** the iterator passed as the second argument. If an OOM error occurs, 
+** leave an error in the Fts5Index object.
+*/
+static void fts5SegIterAllocTombstone(Fts5Index *p, Fts5SegIter *pIter){
+  const int nTomb = pIter->pSeg->nPgTombstone;
+  if( nTomb>0 ){
+    int nByte = nTomb * sizeof(Fts5Data*) + sizeof(Fts5TombstoneArray);
+    Fts5TombstoneArray *pNew;
+    pNew = (Fts5TombstoneArray*)sqlite3Fts5MallocZero(&p->rc, nByte);
+    if( pNew ){
+      pNew->nTombstone = nTomb;
+      pNew->nRef = 1;
+      pIter->pTombArray = pNew;
+    }
+  }
+}
+
+/*
+** Initialize the iterator object pIter to iterate through the entries in
+** segment pSeg. The iterator is left pointing to the first entry when 
+** this function returns.
+**
+** If an error occurs, Fts5Index.rc is set to an appropriate error code. If 
+** an error has already occurred when this function is called, it is a no-op.
+*/
+static void fts5SegIterInit(
+  Fts5Index *p,                   /* FTS index object */
+  Fts5StructureSegment *pSeg,     /* Description of segment */
+  Fts5SegIter *pIter              /* Object to populate */
+){
+  if( pSeg->pgnoFirst==0 ){
+    /* This happens if the segment is being used as an input to an incremental
+    ** merge and all data has already been "trimmed". See function
+    ** fts5TrimSegments() for details. In this case leave the iterator empty.
+    ** The caller will see the (pIter->pLeaf==0) and assume the iterator is
+    ** at EOF already. */
+    assert( pIter->pLeaf==0 );
+    return;
+  }
+
+  if( p->rc==SQLITE_OK ){
+    memset(pIter, 0, sizeof(*pIter));
+    fts5SegIterSetNext(p, pIter);
+    pIter->pSeg = pSeg;
+    pIter->iLeafPgno = pSeg->pgnoFirst-1;
+    do {
+      fts5SegIterNextPage(p, pIter);
+    }while( p->rc==SQLITE_OK && pIter->pLeaf && pIter->pLeaf->nn==4 );
+  }
+
+  if( p->rc==SQLITE_OK && pIter->pLeaf ){
+    pIter->iLeafOffset = 4;
+    assert( pIter->pLeaf!=0 );
+    assert_nc( pIter->pLeaf->nn>4 );
+    assert_nc( fts5LeafFirstTermOff(pIter->pLeaf)==4 );
+    pIter->iPgidxOff = pIter->pLeaf->szLeaf+1;
+    fts5SegIterLoadTerm(p, pIter, 0);
+    fts5SegIterLoadNPos(p, pIter);
+    fts5SegIterAllocTombstone(p, pIter);
+  }
+}
+
+/*
+** This function is only ever called on iterators created by calls to
+** Fts5IndexQuery() with the FTS5INDEX_QUERY_DESC flag set.
+**
+** The iterator is in an unusual state when this function is called: the
+** Fts5SegIter.iLeafOffset variable is set to the offset of the start of
+** the position-list size field for the first relevant rowid on the page.
+** Fts5SegIter.rowid is set, but nPos and bDel are not.
+**
+** This function advances the iterator so that it points to the last 
+** relevant rowid on the page and, if necessary, initializes the 
+** aRowidOffset[] and iRowidOffset variables. At this point the iterator
+** is in its regular state - Fts5SegIter.iLeafOffset points to the first
+** byte of the position list content associated with said rowid.
+*/
+static void fts5SegIterReverseInitPage(Fts5Index *p, Fts5SegIter *pIter){
+  int eDetail = p->pConfig->eDetail;
+  int n = pIter->pLeaf->szLeaf;
+  int i = pIter->iLeafOffset;
+  u8 *a = pIter->pLeaf->p;
+  int iRowidOffset = 0;
+
+  if( n>pIter->iEndofDoclist ){
+    n = pIter->iEndofDoclist;
+  }
+
+  ASSERT_SZLEAF_OK(pIter->pLeaf);
+  while( 1 ){
+    u64 iDelta = 0;
+
+    if( eDetail==FTS5_DETAIL_NONE ){
+      /* todo */
+      if( i<n && a[i]==0 ){
+        i++;
+        if( i<n && a[i]==0 ) i++;
+      }
+    }else{
+      int nPos;
+      int bDummy;
+      i += fts5GetPoslistSize(&a[i], &nPos, &bDummy);
+      i += nPos;
+    }
+    if( i>=n ) break;
+    i += fts5GetVarint(&a[i], &iDelta);
+    pIter->iRowid += iDelta;
+
+    /* If necessary, grow the pIter->aRowidOffset[] array. */
+    if( iRowidOffset>=pIter->nRowidOffset ){
+      int nNew = pIter->nRowidOffset + 8;
+      int *aNew = (int*)sqlite3_realloc64(pIter->aRowidOffset,nNew*sizeof(int));
+      if( aNew==0 ){
+        p->rc = SQLITE_NOMEM;
+        break;
+      }
+      pIter->aRowidOffset = aNew;
+      pIter->nRowidOffset = nNew;
+    }
+
+    pIter->aRowidOffset[iRowidOffset++] = pIter->iLeafOffset;
+    pIter->iLeafOffset = i;
+  }
+  pIter->iRowidOffset = iRowidOffset;
+  fts5SegIterLoadNPos(p, pIter);
+}
+
+/*
+**
+*/
+static void fts5SegIterReverseNewPage(Fts5Index *p, Fts5SegIter *pIter){
+  assert( pIter->flags & FTS5_SEGITER_REVERSE );
+  assert( pIter->flags & FTS5_SEGITER_ONETERM );
+
+  fts5DataRelease(pIter->pLeaf);
+  pIter->pLeaf = 0;
+  while( p->rc==SQLITE_OK && pIter->iLeafPgno>pIter->iTermLeafPgno ){
+    Fts5Data *pNew;
+    pIter->iLeafPgno--;
+    pNew = fts5DataRead(p, FTS5_SEGMENT_ROWID(
+          pIter->pSeg->iSegid, pIter->iLeafPgno
+    ));
+    if( pNew ){
+      /* iTermLeafOffset may be equal to szLeaf if the term is the last
+      ** thing on the page - i.e. the first rowid is on the following page.
+      ** In this case leave pIter->pLeaf==0, this iterator is at EOF. */
+      if( pIter->iLeafPgno==pIter->iTermLeafPgno ){
+        assert( pIter->pLeaf==0 );
+        if( pIter->iTermLeafOffset<pNew->szLeaf ){
+          pIter->pLeaf = pNew;
+          pIter->iLeafOffset = pIter->iTermLeafOffset;
+        }
+      }else{
+        int iRowidOff;
+        iRowidOff = fts5LeafFirstRowidOff(pNew);
+        if( iRowidOff ){
+          if( iRowidOff>=pNew->szLeaf ){
+            p->rc = FTS5_CORRUPT;
+          }else{
+            pIter->pLeaf = pNew;
+            pIter->iLeafOffset = iRowidOff;
+          }
+        }
+      }
+
+      if( pIter->pLeaf ){
+        u8 *a = &pIter->pLeaf->p[pIter->iLeafOffset];
+        pIter->iLeafOffset += fts5GetVarint(a, (u64*)&pIter->iRowid);
+        break;
+      }else{
+        fts5DataRelease(pNew);
+      }
+    }
+  }
+
+  if( pIter->pLeaf ){
+    pIter->iEndofDoclist = pIter->pLeaf->nn+1;
+    fts5SegIterReverseInitPage(p, pIter);
+  }
+}
+
+/*
+** Return true if the iterator passed as the second argument currently
+** points to a delete marker. A delete marker is an entry with a 0 byte
+** position-list.
+*/
+static int fts5MultiIterIsEmpty(Fts5Index *p, Fts5Iter *pIter){
+  Fts5SegIter *pSeg = &pIter->aSeg[pIter->aFirst[1].iFirst];
+  return (p->rc==SQLITE_OK && pSeg->pLeaf && pSeg->nPos==0);
+}
+
+/*
+** Advance iterator pIter to the next entry.
+**
+** This version of fts5SegIterNext() is only used by reverse iterators.
+*/
+static void fts5SegIterNext_Reverse(
+  Fts5Index *p,                   /* FTS5 backend object */
+  Fts5SegIter *pIter,             /* Iterator to advance */
+  int *pbUnused                   /* Unused */
+){
+  assert( pIter->flags & FTS5_SEGITER_REVERSE );
+  assert( pIter->pNextLeaf==0 );
+  UNUSED_PARAM(pbUnused);
+
+  if( pIter->iRowidOffset>0 ){
+    u8 *a = pIter->pLeaf->p;
+    int iOff;
+    u64 iDelta;
+
+    pIter->iRowidOffset--;
+    pIter->iLeafOffset = pIter->aRowidOffset[pIter->iRowidOffset];
+    fts5SegIterLoadNPos(p, pIter);
+    iOff = pIter->iLeafOffset;
+    if( p->pConfig->eDetail!=FTS5_DETAIL_NONE ){
+      iOff += pIter->nPos;
+    }
+    fts5GetVarint(&a[iOff], &iDelta);
+    pIter->iRowid -= iDelta;
+  }else{
+    fts5SegIterReverseNewPage(p, pIter);
+  }
+}
+
+/*
+** Advance iterator pIter to the next entry.
+**
+** This version of fts5SegIterNext() is only used if detail=none and the
+** iterator is not a reverse direction iterator.
+*/
+static void fts5SegIterNext_None(
+  Fts5Index *p,                   /* FTS5 backend object */
+  Fts5SegIter *pIter,             /* Iterator to advance */
+  int *pbNewTerm                  /* OUT: Set for new term */
+){
+  int iOff;
+
+  assert( p->rc==SQLITE_OK );
+  assert( (pIter->flags & FTS5_SEGITER_REVERSE)==0 );
+  assert( p->pConfig->eDetail==FTS5_DETAIL_NONE );
+
+  ASSERT_SZLEAF_OK(pIter->pLeaf);
+  iOff = pIter->iLeafOffset;
+
+  /* Next entry is on the next page */
+  while( pIter->pSeg && iOff>=pIter->pLeaf->szLeaf ){
+    fts5SegIterNextPage(p, pIter);
+    if( p->rc || pIter->pLeaf==0 ) return;
+    pIter->iRowid = 0;
+    iOff = 4;
+  }
+
+  if( iOff<pIter->iEndofDoclist ){
+    /* Next entry is on the current page */
+    u64 iDelta;
+    iOff += sqlite3Fts5GetVarint(&pIter->pLeaf->p[iOff], (u64*)&iDelta);
+    pIter->iLeafOffset = iOff;
+    pIter->iRowid += iDelta;
+  }else if( (pIter->flags & FTS5_SEGITER_ONETERM)==0 ){
+    if( pIter->pSeg ){
+      int nKeep = 0;
+      if( iOff!=fts5LeafFirstTermOff(pIter->pLeaf) ){
+        iOff += fts5GetVarint32(&pIter->pLeaf->p[iOff], nKeep);
+      }
+      pIter->iLeafOffset = iOff;
+      fts5SegIterLoadTerm(p, pIter, nKeep);
+    }else{
+      const u8 *pList = 0;
+      const char *zTerm = 0;
+      int nTerm = 0;
+      int nList;
+      sqlite3Fts5HashScanNext(p->pHash);
+      sqlite3Fts5HashScanEntry(p->pHash, &zTerm, &nTerm, &pList, &nList);
+      if( pList==0 ) goto next_none_eof;
+      pIter->pLeaf->p = (u8*)pList;
+      pIter->pLeaf->nn = nList;
+      pIter->pLeaf->szLeaf = nList;
+      pIter->iEndofDoclist = nList;
+      sqlite3Fts5BufferSet(&p->rc,&pIter->term, nTerm, (u8*)zTerm);
+      pIter->iLeafOffset = fts5GetVarint(pList, (u64*)&pIter->iRowid);
+    }
+
+    if( pbNewTerm ) *pbNewTerm = 1;
+  }else{
+    goto next_none_eof;
+  }
+
+  fts5SegIterLoadNPos(p, pIter);
+
+  return;
+ next_none_eof:
+  fts5DataRelease(pIter->pLeaf);
+  pIter->pLeaf = 0;
+}
+
+
+/*
+** Advance iterator pIter to the next entry. 
+**
+** If an error occurs, Fts5Index.rc is set to an appropriate error code. It 
+** is not considered an error if the iterator reaches EOF. If an error has 
+** already occurred when this function is called, it is a no-op.
+*/
+static void fts5SegIterNext(
+  Fts5Index *p,                   /* FTS5 backend object */
+  Fts5SegIter *pIter,             /* Iterator to advance */
+  int *pbNewTerm                  /* OUT: Set for new term */
+){
+  Fts5Data *pLeaf = pIter->pLeaf;
+  int iOff;
+  int bNewTerm = 0;
+  int nKeep = 0;
+  u8 *a;
+  int n;
+
+  assert( pbNewTerm==0 || *pbNewTerm==0 );
+  assert( p->pConfig->eDetail!=FTS5_DETAIL_NONE );
+
+  /* Search for the end of the position list within the current page. */
+  a = pLeaf->p;
+  n = pLeaf->szLeaf;
+
+  ASSERT_SZLEAF_OK(pLeaf);
+  iOff = pIter->iLeafOffset + pIter->nPos;
+
+  if( iOff<n ){
+    /* The next entry is on the current page. */
+    assert_nc( iOff<=pIter->iEndofDoclist );
+    if( iOff>=pIter->iEndofDoclist ){
+      bNewTerm = 1;
+      if( iOff!=fts5LeafFirstTermOff(pLeaf) ){
+        iOff += fts5GetVarint32(&a[iOff], nKeep);
+      }
+    }else{
+      u64 iDelta;
+      iOff += sqlite3Fts5GetVarint(&a[iOff], &iDelta);
+      pIter->iRowid += iDelta;
+      assert_nc( iDelta>0 );
+    }
+    pIter->iLeafOffset = iOff;
+
+  }else if( pIter->pSeg==0 ){
+    const u8 *pList = 0;
+    const char *zTerm = 0;
+    int nTerm = 0;
+    int nList = 0;
+    assert( (pIter->flags & FTS5_SEGITER_ONETERM) || pbNewTerm );
+    if( 0==(pIter->flags & FTS5_SEGITER_ONETERM) ){
+      sqlite3Fts5HashScanNext(p->pHash);
+      sqlite3Fts5HashScanEntry(p->pHash, &zTerm, &nTerm, &pList, &nList);
+    }
+    if( pList==0 ){
+      fts5DataRelease(pIter->pLeaf);
+      pIter->pLeaf = 0;
+    }else{
+      pIter->pLeaf->p = (u8*)pList;
+      pIter->pLeaf->nn = nList;
+      pIter->pLeaf->szLeaf = nList;
+      pIter->iEndofDoclist = nList+1;
+      sqlite3Fts5BufferSet(&p->rc, &pIter->term, nTerm, (u8*)zTerm);
+      pIter->iLeafOffset = fts5GetVarint(pList, (u64*)&pIter->iRowid);
+      *pbNewTerm = 1;
+    }
+  }else{
+    iOff = 0;
+    /* Next entry is not on the current page */
+    while( iOff==0 ){
+      fts5SegIterNextPage(p, pIter);
+      pLeaf = pIter->pLeaf;
+      if( pLeaf==0 ) break;
+      ASSERT_SZLEAF_OK(pLeaf);
+      if( (iOff = fts5LeafFirstRowidOff(pLeaf)) && iOff<pLeaf->szLeaf ){
+        iOff += sqlite3Fts5GetVarint(&pLeaf->p[iOff], (u64*)&pIter->iRowid);
+        pIter->iLeafOffset = iOff;
+
+        if( pLeaf->nn>pLeaf->szLeaf ){
+          pIter->iPgidxOff = pLeaf->szLeaf + fts5GetVarint32(
+              &pLeaf->p[pLeaf->szLeaf], pIter->iEndofDoclist
+          );
+        }
+      }
+      else if( pLeaf->nn>pLeaf->szLeaf ){
+        pIter->iPgidxOff = pLeaf->szLeaf + fts5GetVarint32(
+            &pLeaf->p[pLeaf->szLeaf], iOff
+        );
+        pIter->iLeafOffset = iOff;
+        pIter->iEndofDoclist = iOff;
+        bNewTerm = 1;
+      }
+      assert_nc( iOff<pLeaf->szLeaf );
+      if( iOff>pLeaf->szLeaf ){
+        p->rc = FTS5_CORRUPT;
+        return;
+      }
+    }
+  }
+
+  /* Check if the iterator is now at EOF. If so, return early. */
+  if( pIter->pLeaf ){
+    if( bNewTerm ){
+      if( pIter->flags & FTS5_SEGITER_ONETERM ){
+        fts5DataRelease(pIter->pLeaf);
+        pIter->pLeaf = 0;
+      }else{
+        fts5SegIterLoadTerm(p, pIter, nKeep);
+        fts5SegIterLoadNPos(p, pIter);
+        if( pbNewTerm ) *pbNewTerm = 1;
+      }
+    }else{
+      /* The following could be done by calling fts5SegIterLoadNPos(). But
+      ** this block is particularly performance critical, so equivalent
+      ** code is inlined.  */
+      int nSz;
+      assert_nc( pIter->iLeafOffset<=pIter->pLeaf->nn );
+      fts5FastGetVarint32(pIter->pLeaf->p, pIter->iLeafOffset, nSz);
+      pIter->bDel = (nSz & 0x0001);
+      pIter->nPos = nSz>>1;
+      assert_nc( pIter->nPos>=0 );
+    }
+  }
+}
+
+#define SWAPVAL(T, a, b) { T tmp; tmp=a; a=b; b=tmp; }
+
+#define fts5IndexSkipVarint(a, iOff) {            \
+  int iEnd = iOff+9;                              \
+  while( (a[iOff++] & 0x80) && iOff<iEnd );       \
+}
+
+/*
+** Iterator pIter currently points to the first rowid in a doclist. This
+** function sets the iterator up so that iterates in reverse order through
+** the doclist.
+*/
+static void fts5SegIterReverse(Fts5Index *p, Fts5SegIter *pIter){
+  Fts5DlidxIter *pDlidx = pIter->pDlidx;
+  Fts5Data *pLast = 0;
+  int pgnoLast = 0;
+
+  if( pDlidx && p->pConfig->iVersion==FTS5_CURRENT_VERSION ){
+    int iSegid = pIter->pSeg->iSegid;
+    pgnoLast = fts5DlidxIterPgno(pDlidx);
+    pLast = fts5LeafRead(p, FTS5_SEGMENT_ROWID(iSegid, pgnoLast));
+  }else{
+    Fts5Data *pLeaf = pIter->pLeaf;         /* Current leaf data */
+
+    /* Currently, Fts5SegIter.iLeafOffset points to the first byte of
+    ** position-list content for the current rowid. Back it up so that it
+    ** points to the start of the position-list size field. */
+    int iPoslist;
+    if( pIter->iTermLeafPgno==pIter->iLeafPgno ){
+      iPoslist = pIter->iTermLeafOffset;
+    }else{
+      iPoslist = 4;
+    }
+    fts5IndexSkipVarint(pLeaf->p, iPoslist);
+    pIter->iLeafOffset = iPoslist;
+
+    /* If this condition is true then the largest rowid for the current
+    ** term may not be stored on the current page. So search forward to
+    ** see where said rowid really is.  */
+    if( pIter->iEndofDoclist>=pLeaf->szLeaf ){
+      int pgno;
+      Fts5StructureSegment *pSeg = pIter->pSeg;
+
+      /* The last rowid in the doclist may not be on the current page. Search
+      ** forward to find the page containing the last rowid.  */
+      for(pgno=pIter->iLeafPgno+1; !p->rc && pgno<=pSeg->pgnoLast; pgno++){
+        i64 iAbs = FTS5_SEGMENT_ROWID(pSeg->iSegid, pgno);
+        Fts5Data *pNew = fts5LeafRead(p, iAbs);
+        if( pNew ){
+          int iRowid, bTermless;
+          iRowid = fts5LeafFirstRowidOff(pNew);
+          bTermless = fts5LeafIsTermless(pNew);
+          if( iRowid ){
+            SWAPVAL(Fts5Data*, pNew, pLast);
+            pgnoLast = pgno;
+          }
+          fts5DataRelease(pNew);
+          if( bTermless==0 ) break;
+        }
+      }
+    }
+  }
+
+  /* If pLast is NULL at this point, then the last rowid for this doclist
+  ** lies on the page currently indicated by the iterator. In this case 
+  ** pIter->iLeafOffset is already set to point to the position-list size
+  ** field associated with the first relevant rowid on the page.
+  **
+  ** Or, if pLast is non-NULL, then it is the page that contains the last
+  ** rowid. In this case configure the iterator so that it points to the
+  ** first rowid on this page.
+  */
+  if( pLast ){
+    int iOff;
+    fts5DataRelease(pIter->pLeaf);
+    pIter->pLeaf = pLast;
+    pIter->iLeafPgno = pgnoLast;
+    iOff = fts5LeafFirstRowidOff(pLast);
+    if( iOff>pLast->szLeaf ){
+      p->rc = FTS5_CORRUPT;
+      return;
+    }
+    iOff += fts5GetVarint(&pLast->p[iOff], (u64*)&pIter->iRowid);
+    pIter->iLeafOffset = iOff;
+
+    if( fts5LeafIsTermless(pLast) ){
+      pIter->iEndofDoclist = pLast->nn+1;
+    }else{
+      pIter->iEndofDoclist = fts5LeafFirstTermOff(pLast);
+    }
+  }
+
+  fts5SegIterReverseInitPage(p, pIter);
+}
+
+/*
+** Iterator pIter currently points to the first rowid of a doclist.
+** There is a doclist-index associated with the final term on the current 
+** page. If the current term is the last term on the page, load the 
+** doclist-index from disk and initialize an iterator at (pIter->pDlidx).
+*/
+static void fts5SegIterLoadDlidx(Fts5Index *p, Fts5SegIter *pIter){
+  int iSeg = pIter->pSeg->iSegid;
+  int bRev = (pIter->flags & FTS5_SEGITER_REVERSE);
+  Fts5Data *pLeaf = pIter->pLeaf; /* Current leaf data */
+
+  assert( pIter->flags & FTS5_SEGITER_ONETERM );
+  assert( pIter->pDlidx==0 );
+
+  /* Check if the current doclist ends on this page. If it does, return
+  ** early without loading the doclist-index (as it belongs to a different
+  ** term. */
+  if( pIter->iTermLeafPgno==pIter->iLeafPgno 
+   && pIter->iEndofDoclist<pLeaf->szLeaf 
+  ){
+    return;
+  }
+
+  pIter->pDlidx = fts5DlidxIterInit(p, bRev, iSeg, pIter->iTermLeafPgno);
+}
+
+/*
+** The iterator object passed as the second argument currently contains
+** no valid values except for the Fts5SegIter.pLeaf member variable. This
+** function searches the leaf page for a term matching (pTerm/nTerm).
+**
+** If the specified term is found on the page, then the iterator is left
+** pointing to it. If argument bGe is zero and the term is not found,
+** the iterator is left pointing at EOF.
+**
+** If bGe is non-zero and the specified term is not found, then the
+** iterator is left pointing to the smallest term in the segment that
+** is larger than the specified term, even if this term is not on the
+** current page.
+*/
+static void fts5LeafSeek(
+  Fts5Index *p,                   /* Leave any error code here */
+  int bGe,                        /* True for a >= search */
+  Fts5SegIter *pIter,             /* Iterator to seek */
+  const u8 *pTerm, int nTerm      /* Term to search for */
+){
+  u32 iOff;
+  const u8 *a = pIter->pLeaf->p;
+  u32 n = (u32)pIter->pLeaf->nn;
+
+  u32 nMatch = 0;
+  u32 nKeep = 0;
+  u32 nNew = 0;
+  u32 iTermOff;
+  u32 iPgidx;                     /* Current offset in pgidx */
+  int bEndOfPage = 0;
+
+  assert( p->rc==SQLITE_OK );
+
+  iPgidx = (u32)pIter->pLeaf->szLeaf;
+  iPgidx += fts5GetVarint32(&a[iPgidx], iTermOff);
+  iOff = iTermOff;
+  if( iOff>n ){
+    p->rc = FTS5_CORRUPT;
+    return;
+  }
+
+  while( 1 ){
+
+    /* Figure out how many new bytes are in this term */
+    fts5FastGetVarint32(a, iOff, nNew);
+    if( nKeep<nMatch ){
+      goto search_failed;
+    }
+
+    assert( nKeep>=nMatch );
+    if( nKeep==nMatch ){
+      u32 nCmp;
+      u32 i;
+      nCmp = (u32)MIN(nNew, nTerm-nMatch);
+      for(i=0; i<nCmp; i++){
+        if( a[iOff+i]!=pTerm[nMatch+i] ) break;
+      }
+      nMatch += i;
+
+      if( (u32)nTerm==nMatch ){
+        if( i==nNew ){
+          goto search_success;
+        }else{
+          goto search_failed;
+        }
+      }else if( i<nNew && a[iOff+i]>pTerm[nMatch] ){
+        goto search_failed;
+      }
+    }
+
+    if( iPgidx>=n ){
+      bEndOfPage = 1;
+      break;
+    }
+
+    iPgidx += fts5GetVarint32(&a[iPgidx], nKeep);
+    iTermOff += nKeep;
+    iOff = iTermOff;
+
+    if( iOff>=n ){
+      p->rc = FTS5_CORRUPT;
+      return;
+    }
+
+    /* Read the nKeep field of the next term. */
+    fts5FastGetVarint32(a, iOff, nKeep);
+  }
+
+ search_failed:
+  if( bGe==0 ){
+    fts5DataRelease(pIter->pLeaf);
+    pIter->pLeaf = 0;
+    return;
+  }else if( bEndOfPage ){
+    do {
+      fts5SegIterNextPage(p, pIter);
+      if( pIter->pLeaf==0 ) return;
+      a = pIter->pLeaf->p;
+      if( fts5LeafIsTermless(pIter->pLeaf)==0 ){
+        iPgidx = (u32)pIter->pLeaf->szLeaf;
+        iPgidx += fts5GetVarint32(&pIter->pLeaf->p[iPgidx], iOff);
+        if( iOff<4 || (i64)iOff>=pIter->pLeaf->szLeaf ){
+          p->rc = FTS5_CORRUPT;
+          return;
+        }else{
+          nKeep = 0;
+          iTermOff = iOff;
+          n = (u32)pIter->pLeaf->nn;
+          iOff += fts5GetVarint32(&a[iOff], nNew);
+          break;
+        }
+      }
+    }while( 1 );
+  }
+
+ search_success:
+  if( (i64)iOff+nNew>n || nNew<1 ){
+    p->rc = FTS5_CORRUPT;
+    return;
+  }
+  pIter->iLeafOffset = iOff + nNew;
+  pIter->iTermLeafOffset = pIter->iLeafOffset;
+  pIter->iTermLeafPgno = pIter->iLeafPgno;
+
+  fts5BufferSet(&p->rc, &pIter->term, nKeep, pTerm);
+  fts5BufferAppendBlob(&p->rc, &pIter->term, nNew, &a[iOff]);
+
+  if( iPgidx>=n ){
+    pIter->iEndofDoclist = pIter->pLeaf->nn+1;
+  }else{
+    int nExtra;
+    iPgidx += fts5GetVarint32(&a[iPgidx], nExtra);
+    pIter->iEndofDoclist = iTermOff + nExtra;
+  }
+  pIter->iPgidxOff = iPgidx;
+
+  fts5SegIterLoadRowid(p, pIter);
+  fts5SegIterLoadNPos(p, pIter);
+}
+
+static sqlite3_stmt *fts5IdxSelectStmt(Fts5Index *p){
+  if( p->pIdxSelect==0 ){
+    Fts5Config *pConfig = p->pConfig;
+    fts5IndexPrepareStmt(p, &p->pIdxSelect, sqlite3_mprintf(
+          "SELECT pgno FROM '%q'.'%q_idx' WHERE "
+          "segid=? AND term<=? ORDER BY term DESC LIMIT 1",
+          pConfig->zDb, pConfig->zName
+    ));
+  }
+  return p->pIdxSelect;
+}
+
+/*
+** Initialize the object pIter to point to term pTerm/nTerm within segment
+** pSeg. If there is no such term in the index, the iterator is set to EOF.
+**
+** If an error occurs, Fts5Index.rc is set to an appropriate error code. If 
+** an error has already occurred when this function is called, it is a no-op.
+*/
+static void fts5SegIterSeekInit(
+  Fts5Index *p,                   /* FTS5 backend */
+  const u8 *pTerm, int nTerm,     /* Term to seek to */
+  int flags,                      /* Mask of FTS5INDEX_XXX flags */
+  Fts5StructureSegment *pSeg,     /* Description of segment */
+  Fts5SegIter *pIter              /* Object to populate */
+){
+  int iPg = 1;
+  int bGe = (flags & FTS5INDEX_QUERY_SCAN);
+  int bDlidx = 0;                 /* True if there is a doclist-index */
+  sqlite3_stmt *pIdxSelect = 0;
+
+  assert( bGe==0 || (flags & FTS5INDEX_QUERY_DESC)==0 );
+  assert( pTerm && nTerm );
+  memset(pIter, 0, sizeof(*pIter));
+  pIter->pSeg = pSeg;
+
+  /* This block sets stack variable iPg to the leaf page number that may
+  ** contain term (pTerm/nTerm), if it is present in the segment. */
+  pIdxSelect = fts5IdxSelectStmt(p);
+  if( p->rc ) return;
+  sqlite3_bind_int(pIdxSelect, 1, pSeg->iSegid);
+  sqlite3_bind_blob(pIdxSelect, 2, pTerm, nTerm, SQLITE_STATIC);
+  if( SQLITE_ROW==sqlite3_step(pIdxSelect) ){
+    i64 val = sqlite3_column_int(pIdxSelect, 0);
+    iPg = (int)(val>>1);
+    bDlidx = (val & 0x0001);
+  }
+  p->rc = sqlite3_reset(pIdxSelect);
+  sqlite3_bind_null(pIdxSelect, 2);
+
+  if( iPg<pSeg->pgnoFirst ){
+    iPg = pSeg->pgnoFirst;
+    bDlidx = 0;
+  }
+
+  pIter->iLeafPgno = iPg - 1;
+  fts5SegIterNextPage(p, pIter);
+
+  if( pIter->pLeaf ){
+    fts5LeafSeek(p, bGe, pIter, pTerm, nTerm);
+  }
+
+  if( p->rc==SQLITE_OK && (bGe==0 || (flags & FTS5INDEX_QUERY_SCANONETERM)) ){
+    pIter->flags |= FTS5_SEGITER_ONETERM;
+    if( pIter->pLeaf ){
+      if( flags & FTS5INDEX_QUERY_DESC ){
+        pIter->flags |= FTS5_SEGITER_REVERSE;
+      }
+      if( bDlidx ){
+        fts5SegIterLoadDlidx(p, pIter);
+      }
+      if( flags & FTS5INDEX_QUERY_DESC ){
+        fts5SegIterReverse(p, pIter);
+      }
+    }
+  }
+
+  fts5SegIterSetNext(p, pIter);
+  if( 0==(flags & FTS5INDEX_QUERY_SCANONETERM) ){
+    fts5SegIterAllocTombstone(p, pIter);
+  }
+
+  /* Either:
+  **
+  **   1) an error has occurred, or
+  **   2) the iterator points to EOF, or
+  **   3) the iterator points to an entry with term (pTerm/nTerm), or
+  **   4) the FTS5INDEX_QUERY_SCAN flag was set and the iterator points
+  **      to an entry with a term greater than or equal to (pTerm/nTerm).
+  */
+  assert_nc( p->rc!=SQLITE_OK                                       /* 1 */
+   || pIter->pLeaf==0                                               /* 2 */
+   || fts5BufferCompareBlob(&pIter->term, pTerm, nTerm)==0          /* 3 */
+   || (bGe && fts5BufferCompareBlob(&pIter->term, pTerm, nTerm)>0)  /* 4 */
+  );
+}
+
+
+/*
+** SQL used by fts5SegIterNextInit() to find the page to open.
+*/
+static sqlite3_stmt *fts5IdxNextStmt(Fts5Index *p){
+  if( p->pIdxNextSelect==0 ){
+    Fts5Config *pConfig = p->pConfig;
+    fts5IndexPrepareStmt(p, &p->pIdxNextSelect, sqlite3_mprintf(
+          "SELECT pgno FROM '%q'.'%q_idx' WHERE "
+          "segid=? AND term>? ORDER BY term ASC LIMIT 1",
+          pConfig->zDb, pConfig->zName
+    ));
+    
+  }
+  return p->pIdxNextSelect;
+}
+
+/*
+** This is similar to fts5SegIterSeekInit(), except that it initializes
+** the segment iterator to point to the first term following the page
+** with pToken/nToken on it.
+*/
+static void fts5SegIterNextInit(
+  Fts5Index *p, 
+  const char *pTerm, int nTerm,
+  Fts5StructureSegment *pSeg,     /* Description of segment */
+  Fts5SegIter *pIter              /* Object to populate */
+){
+  int iPg = -1;                   /* Page of segment to open */
+  int bDlidx = 0;
+  sqlite3_stmt *pSel = 0;         /* SELECT to find iPg */
+
+  pSel = fts5IdxNextStmt(p);
+  if( pSel ){
+    assert( p->rc==SQLITE_OK );
+    sqlite3_bind_int(pSel, 1, pSeg->iSegid);
+    sqlite3_bind_blob(pSel, 2, pTerm, nTerm, SQLITE_STATIC);
+
+    if( sqlite3_step(pSel)==SQLITE_ROW ){
+      i64 val = sqlite3_column_int64(pSel, 0);
+      iPg = (int)(val>>1);
+      bDlidx = (val & 0x0001);
+    }
+    p->rc = sqlite3_reset(pSel);
+    sqlite3_bind_null(pSel, 2);
+    if( p->rc ) return;
+  }
+
+  memset(pIter, 0, sizeof(*pIter));
+  pIter->pSeg = pSeg;
+  pIter->flags |= FTS5_SEGITER_ONETERM;
+  if( iPg>=0 ){
+    pIter->iLeafPgno = iPg - 1;
+    fts5SegIterNextPage(p, pIter);
+    fts5SegIterSetNext(p, pIter);
+  }
+  if( pIter->pLeaf ){
+    const u8 *a = pIter->pLeaf->p;
+    int iTermOff = 0;
+
+    pIter->iPgidxOff = pIter->pLeaf->szLeaf;
+    pIter->iPgidxOff += fts5GetVarint32(&a[pIter->iPgidxOff], iTermOff);
+    pIter->iLeafOffset = iTermOff;
+    fts5SegIterLoadTerm(p, pIter, 0);
+    fts5SegIterLoadNPos(p, pIter);
+    if( bDlidx ) fts5SegIterLoadDlidx(p, pIter);
+
+    assert( p->rc!=SQLITE_OK || 
+        fts5BufferCompareBlob(&pIter->term, (const u8*)pTerm, nTerm)>0
+    );
+  }
+}
+
+/*
+** Initialize the object pIter to point to term pTerm/nTerm within the
+** in-memory hash table. If there is no such term in the hash-table, the 
+** iterator is set to EOF.
+**
+** If an error occurs, Fts5Index.rc is set to an appropriate error code. If 
+** an error has already occurred when this function is called, it is a no-op.
+*/
+static void fts5SegIterHashInit(
+  Fts5Index *p,                   /* FTS5 backend */
+  const u8 *pTerm, int nTerm,     /* Term to seek to */
+  int flags,                      /* Mask of FTS5INDEX_XXX flags */
+  Fts5SegIter *pIter              /* Object to populate */
+){
+  int nList = 0;
+  const u8 *z = 0;
+  int n = 0;
+  Fts5Data *pLeaf = 0;
+
+  assert( p->pHash );
+  assert( p->rc==SQLITE_OK );
+
+  if( pTerm==0 || (flags & FTS5INDEX_QUERY_SCAN) ){
+    const u8 *pList = 0;
+
+    p->rc = sqlite3Fts5HashScanInit(p->pHash, (const char*)pTerm, nTerm);
+    sqlite3Fts5HashScanEntry(p->pHash, (const char**)&z, &n, &pList, &nList);
+    if( pList ){
+      pLeaf = fts5IdxMalloc(p, sizeof(Fts5Data));
+      if( pLeaf ){
+        pLeaf->p = (u8*)pList;
+      }
+    }
+
+    /* The call to sqlite3Fts5HashScanInit() causes the hash table to
+    ** fill the size field of all existing position lists. This means they
+    ** can no longer be appended to. Since the only scenario in which they
+    ** can be appended to is if the previous operation on this table was
+    ** a DELETE, by clearing the Fts5Index.bDelete flag we can avoid this
+    ** possibility altogether.  */
+    p->bDelete = 0;
+  }else{
+    p->rc = sqlite3Fts5HashQuery(p->pHash, sizeof(Fts5Data), 
+        (const char*)pTerm, nTerm, (void**)&pLeaf, &nList
+    );
+    if( pLeaf ){
+      pLeaf->p = (u8*)&pLeaf[1];
+    }
+    z = pTerm;
+    n = nTerm;
+    pIter->flags |= FTS5_SEGITER_ONETERM;
+  }
+
+  if( pLeaf ){
+    sqlite3Fts5BufferSet(&p->rc, &pIter->term, n, z);
+    pLeaf->nn = pLeaf->szLeaf = nList;
+    pIter->pLeaf = pLeaf;
+    pIter->iLeafOffset = fts5GetVarint(pLeaf->p, (u64*)&pIter->iRowid);
+    pIter->iEndofDoclist = pLeaf->nn;
+
+    if( flags & FTS5INDEX_QUERY_DESC ){
+      pIter->flags |= FTS5_SEGITER_REVERSE;
+      fts5SegIterReverseInitPage(p, pIter);
+    }else{
+      fts5SegIterLoadNPos(p, pIter);
+    }
+  }
+
+  fts5SegIterSetNext(p, pIter);
+}
+
+/*
+** Array ap[] contains n elements. Release each of these elements using
+** fts5DataRelease(). Then free the array itself using sqlite3_free().
+*/
+static void fts5IndexFreeArray(Fts5Data **ap, int n){
+  if( ap ){
+    int ii;
+    for(ii=0; ii<n; ii++){
+      fts5DataRelease(ap[ii]);
+    }
+    sqlite3_free(ap);
+  }
+}
+
+/*
+** Decrement the ref-count of the object passed as the only argument. If it
+** reaches 0, free it and its contents. 
+*/
+static void fts5TombstoneArrayDelete(Fts5TombstoneArray *p){
+  if( p ){
+    p->nRef--;
+    if( p->nRef<=0 ){
+      int ii;
+      for(ii=0; ii<p->nTombstone; ii++){
+        fts5DataRelease(p->apTombstone[ii]);
+      }
+      sqlite3_free(p);
+    }
+  }
+}
+
+/*
+** Zero the iterator passed as the only argument.
+*/
+static void fts5SegIterClear(Fts5SegIter *pIter){
+  fts5BufferFree(&pIter->term);
+  fts5DataRelease(pIter->pLeaf);
+  fts5DataRelease(pIter->pNextLeaf);
+  fts5TombstoneArrayDelete(pIter->pTombArray);
+  fts5DlidxIterFree(pIter->pDlidx);
+  sqlite3_free(pIter->aRowidOffset);
+  memset(pIter, 0, sizeof(Fts5SegIter));
+}
+
+#ifdef SQLITE_DEBUG
+
+/*
+** This function is used as part of the big assert() procedure implemented by
+** fts5AssertMultiIterSetup(). It ensures that the result currently stored
+** in *pRes is the correct result of comparing the current positions of the
+** two iterators.
+*/
+static void fts5AssertComparisonResult(
+  Fts5Iter *pIter, 
+  Fts5SegIter *p1,
+  Fts5SegIter *p2,
+  Fts5CResult *pRes
+){
+  int i1 = p1 - pIter->aSeg;
+  int i2 = p2 - pIter->aSeg;
+
+  if( p1->pLeaf || p2->pLeaf ){
+    if( p1->pLeaf==0 ){
+      assert( pRes->iFirst==i2 );
+    }else if( p2->pLeaf==0 ){
+      assert( pRes->iFirst==i1 );
+    }else{
+      int nMin = MIN(p1->term.n, p2->term.n);
+      int res = fts5Memcmp(p1->term.p, p2->term.p, nMin);
+      if( res==0 ) res = p1->term.n - p2->term.n;
+
+      if( res==0 ){
+        assert( pRes->bTermEq==1 );
+        assert( p1->iRowid!=p2->iRowid );
+        res = ((p1->iRowid > p2->iRowid)==pIter->bRev) ? -1 : 1;
+      }else{
+        assert( pRes->bTermEq==0 );
+      }
+
+      if( res<0 ){
+        assert( pRes->iFirst==i1 );
+      }else{
+        assert( pRes->iFirst==i2 );
+      }
+    }
+  }
+}
+
+/*
+** This function is a no-op unless SQLITE_DEBUG is defined when this module
+** is compiled. In that case, this function is essentially an assert() 
+** statement used to verify that the contents of the pIter->aFirst[] array
+** are correct.
+*/
+static void fts5AssertMultiIterSetup(Fts5Index *p, Fts5Iter *pIter){
+  if( p->rc==SQLITE_OK ){
+    Fts5SegIter *pFirst = &pIter->aSeg[ pIter->aFirst[1].iFirst ];
+    int i;
+
+    assert( (pFirst->pLeaf==0)==pIter->base.bEof );
+
+    /* Check that pIter->iSwitchRowid is set correctly. */
+    for(i=0; i<pIter->nSeg; i++){
+      Fts5SegIter *p1 = &pIter->aSeg[i];
+      assert( p1==pFirst 
+           || p1->pLeaf==0 
+           || fts5BufferCompare(&pFirst->term, &p1->term) 
+           || p1->iRowid==pIter->iSwitchRowid
+           || (p1->iRowid<pIter->iSwitchRowid)==pIter->bRev
+      );
+    }
+
+    for(i=0; i<pIter->nSeg; i+=2){
+      Fts5SegIter *p1 = &pIter->aSeg[i];
+      Fts5SegIter *p2 = &pIter->aSeg[i+1];
+      Fts5CResult *pRes = &pIter->aFirst[(pIter->nSeg + i) / 2];
+      fts5AssertComparisonResult(pIter, p1, p2, pRes);
+    }
+
+    for(i=1; i<(pIter->nSeg / 2); i+=2){
+      Fts5SegIter *p1 = &pIter->aSeg[ pIter->aFirst[i*2].iFirst ];
+      Fts5SegIter *p2 = &pIter->aSeg[ pIter->aFirst[i*2+1].iFirst ];
+      Fts5CResult *pRes = &pIter->aFirst[i];
+      fts5AssertComparisonResult(pIter, p1, p2, pRes);
+    }
+  }
+}
+#else
+# define fts5AssertMultiIterSetup(x,y)
+#endif
+
+/*
+** Do the comparison necessary to populate pIter->aFirst[iOut].
+**
+** If the returned value is non-zero, then it is the index of an entry
+** in the pIter->aSeg[] array that is (a) not at EOF, and (b) pointing
+** to a key that is a duplicate of another, higher priority, 
+** segment-iterator in the pSeg->aSeg[] array.
+*/
+static int fts5MultiIterDoCompare(Fts5Iter *pIter, int iOut){
+  int i1;                         /* Index of left-hand Fts5SegIter */
+  int i2;                         /* Index of right-hand Fts5SegIter */
+  int iRes;
+  Fts5SegIter *p1;                /* Left-hand Fts5SegIter */
+  Fts5SegIter *p2;                /* Right-hand Fts5SegIter */
+  Fts5CResult *pRes = &pIter->aFirst[iOut];
+
+  assert( iOut<pIter->nSeg && iOut>0 );
+  assert( pIter->bRev==0 || pIter->bRev==1 );
+
+  if( iOut>=(pIter->nSeg/2) ){
+    i1 = (iOut - pIter->nSeg/2) * 2;
+    i2 = i1 + 1;
+  }else{
+    i1 = pIter->aFirst[iOut*2].iFirst;
+    i2 = pIter->aFirst[iOut*2+1].iFirst;
+  }
+  p1 = &pIter->aSeg[i1];
+  p2 = &pIter->aSeg[i2];
+
+  pRes->bTermEq = 0;
+  if( p1->pLeaf==0 ){           /* If p1 is at EOF */
+    iRes = i2;
+  }else if( p2->pLeaf==0 ){     /* If p2 is at EOF */
+    iRes = i1;
+  }else{
+    int res = fts5BufferCompare(&p1->term, &p2->term);
+    if( res==0 ){
+      assert_nc( i2>i1 );
+      assert_nc( i2!=0 );
+      pRes->bTermEq = 1;
+      if( p1->iRowid==p2->iRowid ){
+        return i2;
+      }
+      res = ((p1->iRowid > p2->iRowid)==pIter->bRev) ? -1 : +1;
+    }
+    assert( res!=0 );
+    if( res<0 ){
+      iRes = i1;
+    }else{
+      iRes = i2;
+    }
+  }
+
+  pRes->iFirst = (u16)iRes;
+  return 0;
+}
+
+/*
+** Move the seg-iter so that it points to the first rowid on page iLeafPgno.
+** It is an error if leaf iLeafPgno does not exist. Unless the db is
+** a 'secure-delete' db, if it contains no rowids then this is also an error.
+*/
+static void fts5SegIterGotoPage(
+  Fts5Index *p,                   /* FTS5 backend object */
+  Fts5SegIter *pIter,             /* Iterator to advance */
+  int iLeafPgno
+){
+  assert( iLeafPgno>pIter->iLeafPgno );
+
+  if( iLeafPgno>pIter->pSeg->pgnoLast ){
+    p->rc = FTS5_CORRUPT;
+  }else{
+    fts5DataRelease(pIter->pNextLeaf);
+    pIter->pNextLeaf = 0;
+    pIter->iLeafPgno = iLeafPgno-1;
+
+    while( p->rc==SQLITE_OK ){
+      int iOff;
+      fts5SegIterNextPage(p, pIter);
+      if( pIter->pLeaf==0 ) break;
+      iOff = fts5LeafFirstRowidOff(pIter->pLeaf);
+      if( iOff>0 ){
+        u8 *a = pIter->pLeaf->p;
+        int n = pIter->pLeaf->szLeaf;
+        if( iOff<4 || iOff>=n ){
+          p->rc = FTS5_CORRUPT;
+        }else{
+          iOff += fts5GetVarint(&a[iOff], (u64*)&pIter->iRowid);
+          pIter->iLeafOffset = iOff;
+          fts5SegIterLoadNPos(p, pIter);
+        }
+        break;
+      }
+    }
+  }
+}
+
+/*
+** Advance the iterator passed as the second argument until it is at or 
+** past rowid iFrom. Regardless of the value of iFrom, the iterator is
+** always advanced at least once.
+*/
+static void fts5SegIterNextFrom(
+  Fts5Index *p,                   /* FTS5 backend object */
+  Fts5SegIter *pIter,             /* Iterator to advance */
+  i64 iMatch                      /* Advance iterator at least this far */
+){
+  int bRev = (pIter->flags & FTS5_SEGITER_REVERSE);
+  Fts5DlidxIter *pDlidx = pIter->pDlidx;
+  int iLeafPgno = pIter->iLeafPgno;
+  int bMove = 1;
+
+  assert( pIter->flags & FTS5_SEGITER_ONETERM );
+  assert( pIter->pDlidx );
+  assert( pIter->pLeaf );
+
+  if( bRev==0 ){
+    while( !fts5DlidxIterEof(p, pDlidx) && iMatch>fts5DlidxIterRowid(pDlidx) ){
+      iLeafPgno = fts5DlidxIterPgno(pDlidx);
+      fts5DlidxIterNext(p, pDlidx);
+    }
+    assert_nc( iLeafPgno>=pIter->iLeafPgno || p->rc );
+    if( iLeafPgno>pIter->iLeafPgno ){
+      fts5SegIterGotoPage(p, pIter, iLeafPgno);
+      bMove = 0;
+    }
+  }else{
+    assert( pIter->pNextLeaf==0 );
+    assert( iMatch<pIter->iRowid );
+    while( !fts5DlidxIterEof(p, pDlidx) && iMatch<fts5DlidxIterRowid(pDlidx) ){
+      fts5DlidxIterPrev(p, pDlidx);
+    }
+    iLeafPgno = fts5DlidxIterPgno(pDlidx);
+
+    assert( fts5DlidxIterEof(p, pDlidx) || iLeafPgno<=pIter->iLeafPgno );
+
+    if( iLeafPgno<pIter->iLeafPgno ){
+      pIter->iLeafPgno = iLeafPgno+1;
+      fts5SegIterReverseNewPage(p, pIter);
+      bMove = 0;
+    }
+  }
+
+  do{
+    if( bMove && p->rc==SQLITE_OK ) pIter->xNext(p, pIter, 0);
+    if( pIter->pLeaf==0 ) break;
+    if( bRev==0 && pIter->iRowid>=iMatch ) break;
+    if( bRev!=0 && pIter->iRowid<=iMatch ) break;
+    bMove = 1;
+  }while( p->rc==SQLITE_OK );
+}
+
+/*
+** Free the iterator object passed as the second argument.
+*/
+static void fts5MultiIterFree(Fts5Iter *pIter){
+  if( pIter ){
+    int i;
+    for(i=0; i<pIter->nSeg; i++){
+      fts5SegIterClear(&pIter->aSeg[i]);
+    }
+    fts5BufferFree(&pIter->poslist);
+    sqlite3_free(pIter);
+  }
+}
+
+static void fts5MultiIterAdvanced(
+  Fts5Index *p,                   /* FTS5 backend to iterate within */
+  Fts5Iter *pIter,                /* Iterator to update aFirst[] array for */
+  int iChanged,                   /* Index of sub-iterator just advanced */
+  int iMinset                     /* Minimum entry in aFirst[] to set */
+){
+  int i;
+  for(i=(pIter->nSeg+iChanged)/2; i>=iMinset && p->rc==SQLITE_OK; i=i/2){
+    int iEq;
+    if( (iEq = fts5MultiIterDoCompare(pIter, i)) ){
+      Fts5SegIter *pSeg = &pIter->aSeg[iEq];
+      assert( p->rc==SQLITE_OK );
+      pSeg->xNext(p, pSeg, 0);
+      i = pIter->nSeg + iEq;
+    }
+  }
+}
+
+/*
+** Sub-iterator iChanged of iterator pIter has just been advanced. It still
+** points to the same term though - just a different rowid. This function
+** attempts to update the contents of the pIter->aFirst[] accordingly.
+** If it does so successfully, 0 is returned. Otherwise 1.
+**
+** If non-zero is returned, the caller should call fts5MultiIterAdvanced()
+** on the iterator instead. That function does the same as this one, except
+** that it deals with more complicated cases as well.
+*/ 
+static int fts5MultiIterAdvanceRowid(
+  Fts5Iter *pIter,                /* Iterator to update aFirst[] array for */
+  int iChanged,                   /* Index of sub-iterator just advanced */
+  Fts5SegIter **ppFirst
+){
+  Fts5SegIter *pNew = &pIter->aSeg[iChanged];
+
+  if( pNew->iRowid==pIter->iSwitchRowid
+   || (pNew->iRowid<pIter->iSwitchRowid)==pIter->bRev
+  ){
+    int i;
+    Fts5SegIter *pOther = &pIter->aSeg[iChanged ^ 0x0001];
+    pIter->iSwitchRowid = pIter->bRev ? SMALLEST_INT64 : LARGEST_INT64;
+    for(i=(pIter->nSeg+iChanged)/2; 1; i=i/2){
+      Fts5CResult *pRes = &pIter->aFirst[i];
+
+      assert( pNew->pLeaf );
+      assert( pRes->bTermEq==0 || pOther->pLeaf );
+
+      if( pRes->bTermEq ){
+        if( pNew->iRowid==pOther->iRowid ){
+          return 1;
+        }else if( (pOther->iRowid>pNew->iRowid)==pIter->bRev ){
+          pIter->iSwitchRowid = pOther->iRowid;
+          pNew = pOther;
+        }else if( (pOther->iRowid>pIter->iSwitchRowid)==pIter->bRev ){
+          pIter->iSwitchRowid = pOther->iRowid;
+        }
+      }
+      pRes->iFirst = (u16)(pNew - pIter->aSeg);
+      if( i==1 ) break;
+
+      pOther = &pIter->aSeg[ pIter->aFirst[i ^ 0x0001].iFirst ];
+    }
+  }
+
+  *ppFirst = pNew;
+  return 0;
+}
+
+/*
+** Set the pIter->bEof variable based on the state of the sub-iterators.
+*/
+static void fts5MultiIterSetEof(Fts5Iter *pIter){
+  Fts5SegIter *pSeg = &pIter->aSeg[ pIter->aFirst[1].iFirst ];
+  pIter->base.bEof = pSeg->pLeaf==0;
+  pIter->iSwitchRowid = pSeg->iRowid;
+}
+
+/*
+** The argument to this macro must be an Fts5Data structure containing a
+** tombstone hash page. This macro returns the key-size of the hash-page.
+*/
+#define TOMBSTONE_KEYSIZE(pPg) (pPg->p[0]==4 ? 4 : 8)
+
+#define TOMBSTONE_NSLOT(pPg)   \
+  ((pPg->nn > 16) ? ((pPg->nn-8) / TOMBSTONE_KEYSIZE(pPg)) : 1)
+
+/*
+** Query a single tombstone hash table for rowid iRowid. Return true if
+** it is found or false otherwise. The tombstone hash table is one of
+** nHashTable tables.
+*/
+static int fts5IndexTombstoneQuery(
+  Fts5Data *pHash,                /* Hash table page to query */
+  int nHashTable,                 /* Number of pages attached to segment */
+  u64 iRowid                      /* Rowid to query hash for */
+){
+  const int szKey = TOMBSTONE_KEYSIZE(pHash);
+  const int nSlot = TOMBSTONE_NSLOT(pHash);
+  int iSlot = (iRowid / nHashTable) % nSlot;
+  int nCollide = nSlot;
+
+  if( iRowid==0 ){
+    return pHash->p[1];
+  }else if( szKey==4 ){
+    u32 *aSlot = (u32*)&pHash->p[8];
+    while( aSlot[iSlot] ){
+      if( fts5GetU32((u8*)&aSlot[iSlot])==iRowid ) return 1;
+      if( nCollide--==0 ) break;
+      iSlot = (iSlot+1)%nSlot;
+    }
+  }else{
+    u64 *aSlot = (u64*)&pHash->p[8];
+    while( aSlot[iSlot] ){
+      if( fts5GetU64((u8*)&aSlot[iSlot])==iRowid ) return 1;
+      if( nCollide--==0 ) break;
+      iSlot = (iSlot+1)%nSlot;
+    }
+  }
+
+  return 0;
+}
+
+/*
+** Return true if the iterator passed as the only argument points
+** to an segment entry for which there is a tombstone. Return false
+** if there is no tombstone or if the iterator is already at EOF.
+*/
+static int fts5MultiIterIsDeleted(Fts5Iter *pIter){
+  int iFirst = pIter->aFirst[1].iFirst;
+  Fts5SegIter *pSeg = &pIter->aSeg[iFirst];
+  Fts5TombstoneArray *pArray = pSeg->pTombArray;
+
+  if( pSeg->pLeaf && pArray ){
+    /* Figure out which page the rowid might be present on. */
+    int iPg = ((u64)pSeg->iRowid) % pArray->nTombstone;
+    assert( iPg>=0 );
+
+    /* If tombstone hash page iPg has not yet been loaded from the 
+    ** database, load it now. */
+    if( pArray->apTombstone[iPg]==0 ){
+      pArray->apTombstone[iPg] = fts5DataRead(pIter->pIndex,
+          FTS5_TOMBSTONE_ROWID(pSeg->pSeg->iSegid, iPg)
+      );
+      if( pArray->apTombstone[iPg]==0 ) return 0;
+    }
+
+    return fts5IndexTombstoneQuery(
+        pArray->apTombstone[iPg],
+        pArray->nTombstone,
+        pSeg->iRowid
+    );
+  }
+
+  return 0;
+}
+
+/*
+** Move the iterator to the next entry. 
+**
+** If an error occurs, an error code is left in Fts5Index.rc. It is not 
+** considered an error if the iterator reaches EOF, or if it is already at 
+** EOF when this function is called.
+*/
+static void fts5MultiIterNext(
+  Fts5Index *p, 
+  Fts5Iter *pIter,
+  int bFrom,                      /* True if argument iFrom is valid */
+  i64 iFrom                       /* Advance at least as far as this */
+){
+  int bUseFrom = bFrom;
+  assert( pIter->base.bEof==0 );
+  while( p->rc==SQLITE_OK ){
+    int iFirst = pIter->aFirst[1].iFirst;
+    int bNewTerm = 0;
+    Fts5SegIter *pSeg = &pIter->aSeg[iFirst];
+    assert( p->rc==SQLITE_OK );
+    if( bUseFrom && pSeg->pDlidx ){
+      fts5SegIterNextFrom(p, pSeg, iFrom);
+    }else{
+      pSeg->xNext(p, pSeg, &bNewTerm);
+    }
+
+    if( pSeg->pLeaf==0 || bNewTerm 
+     || fts5MultiIterAdvanceRowid(pIter, iFirst, &pSeg)
+    ){
+      fts5MultiIterAdvanced(p, pIter, iFirst, 1);
+      fts5MultiIterSetEof(pIter);
+      pSeg = &pIter->aSeg[pIter->aFirst[1].iFirst];
+      if( pSeg->pLeaf==0 ) return;
+    }
+
+    fts5AssertMultiIterSetup(p, pIter);
+    assert( pSeg==&pIter->aSeg[pIter->aFirst[1].iFirst] && pSeg->pLeaf );
+    if( (pIter->bSkipEmpty==0 || pSeg->nPos) 
+      && 0==fts5MultiIterIsDeleted(pIter)
+    ){
+      pIter->xSetOutputs(pIter, pSeg);
+      return;
+    }
+    bUseFrom = 0;
+  }
+}
+
+static void fts5MultiIterNext2(
+  Fts5Index *p, 
+  Fts5Iter *pIter,
+  int *pbNewTerm                  /* OUT: True if *might* be new term */
+){
+  assert( pIter->bSkipEmpty );
+  if( p->rc==SQLITE_OK ){
+    *pbNewTerm = 0;
+    do{
+      int iFirst = pIter->aFirst[1].iFirst;
+      Fts5SegIter *pSeg = &pIter->aSeg[iFirst];
+      int bNewTerm = 0;
+
+      assert( p->rc==SQLITE_OK );
+      pSeg->xNext(p, pSeg, &bNewTerm);
+      if( pSeg->pLeaf==0 || bNewTerm 
+       || fts5MultiIterAdvanceRowid(pIter, iFirst, &pSeg)
+      ){
+        fts5MultiIterAdvanced(p, pIter, iFirst, 1);
+        fts5MultiIterSetEof(pIter);
+        *pbNewTerm = 1;
+      }
+      fts5AssertMultiIterSetup(p, pIter);
+
+    }while( (fts5MultiIterIsEmpty(p, pIter) || fts5MultiIterIsDeleted(pIter)) 
+         && (p->rc==SQLITE_OK)
+    );
+  }
+}
+
+static void fts5IterSetOutputs_Noop(Fts5Iter *pUnused1, Fts5SegIter *pUnused2){
+  UNUSED_PARAM2(pUnused1, pUnused2);
+}
+
+static Fts5Iter *fts5MultiIterAlloc(
+  Fts5Index *p,                   /* FTS5 backend to iterate within */
+  int nSeg
+){
+  Fts5Iter *pNew;
+  i64 nSlot;                      /* Power of two >= nSeg */
+
+  for(nSlot=2; nSlot<nSeg; nSlot=nSlot*2);
+  pNew = fts5IdxMalloc(p, 
+      sizeof(Fts5Iter) +                  /* pNew */
+      sizeof(Fts5SegIter) * (nSlot-1) +   /* pNew->aSeg[] */
+      sizeof(Fts5CResult) * nSlot         /* pNew->aFirst[] */
+  );
+  if( pNew ){
+    pNew->nSeg = nSlot;
+    pNew->aFirst = (Fts5CResult*)&pNew->aSeg[nSlot];
+    pNew->pIndex = p;
+    pNew->xSetOutputs = fts5IterSetOutputs_Noop;
+  }
+  return pNew;
+}
+
+static void fts5PoslistCallback(
+  Fts5Index *pUnused, 
+  void *pContext, 
+  const u8 *pChunk, int nChunk
+){
+  UNUSED_PARAM(pUnused);
+  assert_nc( nChunk>=0 );
+  if( nChunk>0 ){
+    fts5BufferSafeAppendBlob((Fts5Buffer*)pContext, pChunk, nChunk);
+  }
+}
+
+typedef struct PoslistCallbackCtx PoslistCallbackCtx;
+struct PoslistCallbackCtx {
+  Fts5Buffer *pBuf;               /* Append to this buffer */
+  Fts5Colset *pColset;            /* Restrict matches to this column */
+  int eState;                     /* See above */
+};
+
+typedef struct PoslistOffsetsCtx PoslistOffsetsCtx;
+struct PoslistOffsetsCtx {
+  Fts5Buffer *pBuf;               /* Append to this buffer */
+  Fts5Colset *pColset;            /* Restrict matches to this column */
+  int iRead;
+  int iWrite;
+};
+
+/*
+** TODO: Make this more efficient!
+*/
+static int fts5IndexColsetTest(Fts5Colset *pColset, int iCol){
+  int i;
+  for(i=0; i<pColset->nCol; i++){
+    if( pColset->aiCol[i]==iCol ) return 1;
+  }
+  return 0;
+}
+
+static void fts5PoslistOffsetsCallback(
+  Fts5Index *pUnused, 
+  void *pContext, 
+  const u8 *pChunk, int nChunk
+){
+  PoslistOffsetsCtx *pCtx = (PoslistOffsetsCtx*)pContext;
+  UNUSED_PARAM(pUnused);
+  assert_nc( nChunk>=0 );
+  if( nChunk>0 ){
+    int i = 0;
+    while( i<nChunk ){
+      int iVal;
+      i += fts5GetVarint32(&pChunk[i], iVal);
+      iVal += pCtx->iRead - 2;
+      pCtx->iRead = iVal;
+      if( fts5IndexColsetTest(pCtx->pColset, iVal) ){
+        fts5BufferSafeAppendVarint(pCtx->pBuf, iVal + 2 - pCtx->iWrite);
+        pCtx->iWrite = iVal;
+      }
+    }
+  }
+}
+
+static void fts5PoslistFilterCallback(
+  Fts5Index *pUnused,
+  void *pContext, 
+  const u8 *pChunk, int nChunk
+){
+  PoslistCallbackCtx *pCtx = (PoslistCallbackCtx*)pContext;
+  UNUSED_PARAM(pUnused);
+  assert_nc( nChunk>=0 );
+  if( nChunk>0 ){
+    /* Search through to find the first varint with value 1. This is the
+    ** start of the next columns hits. */
+    int i = 0;
+    int iStart = 0;
+
+    if( pCtx->eState==2 ){
+      int iCol;
+      fts5FastGetVarint32(pChunk, i, iCol);
+      if( fts5IndexColsetTest(pCtx->pColset, iCol) ){
+        pCtx->eState = 1;
+        fts5BufferSafeAppendVarint(pCtx->pBuf, 1);
+      }else{
+        pCtx->eState = 0;
+      }
+    }
+
+    do {
+      while( i<nChunk && pChunk[i]!=0x01 ){
+        while( pChunk[i] & 0x80 ) i++;
+        i++;
+      }
+      if( pCtx->eState ){
+        fts5BufferSafeAppendBlob(pCtx->pBuf, &pChunk[iStart], i-iStart);
+      }
+      if( i<nChunk ){
+        int iCol;
+        iStart = i;
+        i++;
+        if( i>=nChunk ){
+          pCtx->eState = 2;
+        }else{
+          fts5FastGetVarint32(pChunk, i, iCol);
+          pCtx->eState = fts5IndexColsetTest(pCtx->pColset, iCol);
+          if( pCtx->eState ){
+            fts5BufferSafeAppendBlob(pCtx->pBuf, &pChunk[iStart], i-iStart);
+            iStart = i;
+          }
+        }
+      }
+    }while( i<nChunk );
+  }
+}
+
+static void fts5ChunkIterate(
+  Fts5Index *p,                   /* Index object */
+  Fts5SegIter *pSeg,              /* Poslist of this iterator */
+  void *pCtx,                     /* Context pointer for xChunk callback */
+  void (*xChunk)(Fts5Index*, void*, const u8*, int)
+){
+  int nRem = pSeg->nPos;          /* Number of bytes still to come */
+  Fts5Data *pData = 0;
+  u8 *pChunk = &pSeg->pLeaf->p[pSeg->iLeafOffset];
+  int nChunk = MIN(nRem, pSeg->pLeaf->szLeaf - pSeg->iLeafOffset);
+  int pgno = pSeg->iLeafPgno;
+  int pgnoSave = 0;
+
+  /* This function does not work with detail=none databases. */
+  assert( p->pConfig->eDetail!=FTS5_DETAIL_NONE );
+
+  if( (pSeg->flags & FTS5_SEGITER_REVERSE)==0 ){
+    pgnoSave = pgno+1;
+  }
+
+  while( 1 ){
+    xChunk(p, pCtx, pChunk, nChunk);
+    nRem -= nChunk;
+    fts5DataRelease(pData);
+    if( nRem<=0 ){
+      break;
+    }else if( pSeg->pSeg==0 ){
+      p->rc = FTS5_CORRUPT;
+      return;
+    }else{
+      pgno++;
+      pData = fts5LeafRead(p, FTS5_SEGMENT_ROWID(pSeg->pSeg->iSegid, pgno));
+      if( pData==0 ) break;
+      pChunk = &pData->p[4];
+      nChunk = MIN(nRem, pData->szLeaf - 4);
+      if( pgno==pgnoSave ){
+        assert( pSeg->pNextLeaf==0 );
+        pSeg->pNextLeaf = pData;
+        pData = 0;
+      }
+    }
+  }
+}
+
+/*
+** Iterator pIter currently points to a valid entry (not EOF). This
+** function appends the position list data for the current entry to
+** buffer pBuf. It does not make a copy of the position-list size
+** field.
+*/
+static void fts5SegiterPoslist(
+  Fts5Index *p,
+  Fts5SegIter *pSeg,
+  Fts5Colset *pColset,
+  Fts5Buffer *pBuf
+){
+  assert( pBuf!=0 );
+  assert( pSeg!=0 );
+  if( 0==fts5BufferGrow(&p->rc, pBuf, pSeg->nPos+FTS5_DATA_ZERO_PADDING) ){
+    assert( pBuf->p!=0 );
+    assert( pBuf->nSpace >= pBuf->n+pSeg->nPos+FTS5_DATA_ZERO_PADDING );
+    memset(&pBuf->p[pBuf->n+pSeg->nPos], 0, FTS5_DATA_ZERO_PADDING);
+    if( pColset==0 ){
+      fts5ChunkIterate(p, pSeg, (void*)pBuf, fts5PoslistCallback);
+    }else{
+      if( p->pConfig->eDetail==FTS5_DETAIL_FULL ){
+        PoslistCallbackCtx sCtx;
+        sCtx.pBuf = pBuf;
+        sCtx.pColset = pColset;
+        sCtx.eState = fts5IndexColsetTest(pColset, 0);
+        assert( sCtx.eState==0 || sCtx.eState==1 );
+        fts5ChunkIterate(p, pSeg, (void*)&sCtx, fts5PoslistFilterCallback);
+      }else{
+        PoslistOffsetsCtx sCtx;
+        memset(&sCtx, 0, sizeof(sCtx));
+        sCtx.pBuf = pBuf;
+        sCtx.pColset = pColset;
+        fts5ChunkIterate(p, pSeg, (void*)&sCtx, fts5PoslistOffsetsCallback);
+      }
+    }
+  }
+}
+
+/*
+** Parameter pPos points to a buffer containing a position list, size nPos.
+** This function filters it according to pColset (which must be non-NULL)
+** and sets pIter->base.pData/nData to point to the new position list.
+** If memory is required for the new position list, use buffer pIter->poslist.
+** Or, if the new position list is a contiguous subset of the input, set
+** pIter->base.pData/nData to point directly to it.
+**
+** This function is a no-op if *pRc is other than SQLITE_OK when it is
+** called. If an OOM error is encountered, *pRc is set to SQLITE_NOMEM
+** before returning.
+*/
+static void fts5IndexExtractColset(
+  int *pRc,
+  Fts5Colset *pColset,            /* Colset to filter on */
+  const u8 *pPos, int nPos,       /* Position list */
+  Fts5Iter *pIter
+){
+  if( *pRc==SQLITE_OK ){
+    const u8 *p = pPos;
+    const u8 *aCopy = p;
+    const u8 *pEnd = &p[nPos];    /* One byte past end of position list */
+    int i = 0;
+    int iCurrent = 0;
+
+    if( pColset->nCol>1 && sqlite3Fts5BufferSize(pRc, &pIter->poslist, nPos) ){
+      return;
+    }
+
+    while( 1 ){
+      while( pColset->aiCol[i]<iCurrent ){
+        i++;
+        if( i==pColset->nCol ){
+          pIter->base.pData = pIter->poslist.p;
+          pIter->base.nData = pIter->poslist.n;
+          return;
+        }
+      }
+
+      /* Advance pointer p until it points to pEnd or an 0x01 byte that is
+      ** not part of a varint */
+      while( p<pEnd && *p!=0x01 ){
+        while( *p++ & 0x80 );
+      }
+
+      if( pColset->aiCol[i]==iCurrent ){
+        if( pColset->nCol==1 ){
+          pIter->base.pData = aCopy;
+          pIter->base.nData = p-aCopy;
+          return;
+        }
+        fts5BufferSafeAppendBlob(&pIter->poslist, aCopy, p-aCopy);
+      }
+      if( p>=pEnd ){
+        pIter->base.pData = pIter->poslist.p;
+        pIter->base.nData = pIter->poslist.n;
+        return;
+      }
+      aCopy = p++;
+      iCurrent = *p++;
+      if( iCurrent & 0x80 ){
+        p--;
+        p += fts5GetVarint32(p, iCurrent);
+      }
+    }
+  }
+
+}
+
+/*
+** xSetOutputs callback used by detail=none tables.
+*/
+static void fts5IterSetOutputs_None(Fts5Iter *pIter, Fts5SegIter *pSeg){
+  assert( pIter->pIndex->pConfig->eDetail==FTS5_DETAIL_NONE );
+  pIter->base.iRowid = pSeg->iRowid;
+  pIter->base.nData = pSeg->nPos;
+}
+
+/*
+** xSetOutputs callback used by detail=full and detail=col tables when no
+** column filters are specified.
+*/
+static void fts5IterSetOutputs_Nocolset(Fts5Iter *pIter, Fts5SegIter *pSeg){
+  pIter->base.iRowid = pSeg->iRowid;
+  pIter->base.nData = pSeg->nPos;
+
+  assert( pIter->pIndex->pConfig->eDetail!=FTS5_DETAIL_NONE );
+  assert( pIter->pColset==0 );
+
+  if( pSeg->iLeafOffset+pSeg->nPos<=pSeg->pLeaf->szLeaf ){
+    /* All data is stored on the current page. Populate the output 
+    ** variables to point into the body of the page object. */
+    pIter->base.pData = &pSeg->pLeaf->p[pSeg->iLeafOffset];
+  }else{
+    /* The data is distributed over two or more pages. Copy it into the
+    ** Fts5Iter.poslist buffer and then set the output pointer to point
+    ** to this buffer.  */
+    fts5BufferZero(&pIter->poslist);
+    fts5SegiterPoslist(pIter->pIndex, pSeg, 0, &pIter->poslist);
+    pIter->base.pData = pIter->poslist.p;
+  }
+}
+
+/*
+** xSetOutputs callback used when the Fts5Colset object has nCol==0 (match
+** against no columns at all).
+*/
+static void fts5IterSetOutputs_ZeroColset(Fts5Iter *pIter, Fts5SegIter *pSeg){
+  UNUSED_PARAM(pSeg);
+  pIter->base.nData = 0;
+}
+
+/*
+** xSetOutputs callback used by detail=col when there is a column filter
+** and there are 100 or more columns. Also called as a fallback from
+** fts5IterSetOutputs_Col100 if the column-list spans more than one page.
+*/
+static void fts5IterSetOutputs_Col(Fts5Iter *pIter, Fts5SegIter *pSeg){
+  fts5BufferZero(&pIter->poslist);
+  fts5SegiterPoslist(pIter->pIndex, pSeg, pIter->pColset, &pIter->poslist);
+  pIter->base.iRowid = pSeg->iRowid;
+  pIter->base.pData = pIter->poslist.p;
+  pIter->base.nData = pIter->poslist.n;
+}
+
+/*
+** xSetOutputs callback used when: 
+**
+**   * detail=col,
+**   * there is a column filter, and
+**   * the table contains 100 or fewer columns. 
+**
+** The last point is to ensure all column numbers are stored as 
+** single-byte varints.
+*/
+static void fts5IterSetOutputs_Col100(Fts5Iter *pIter, Fts5SegIter *pSeg){
+
+  assert( pIter->pIndex->pConfig->eDetail==FTS5_DETAIL_COLUMNS );
+  assert( pIter->pColset );
+
+  if( pSeg->iLeafOffset+pSeg->nPos>pSeg->pLeaf->szLeaf ){
+    fts5IterSetOutputs_Col(pIter, pSeg);
+  }else{
+    u8 *a = (u8*)&pSeg->pLeaf->p[pSeg->iLeafOffset];
+    u8 *pEnd = (u8*)&a[pSeg->nPos]; 
+    int iPrev = 0;
+    int *aiCol = pIter->pColset->aiCol;
+    int *aiColEnd = &aiCol[pIter->pColset->nCol];
+
+    u8 *aOut = pIter->poslist.p;
+    int iPrevOut = 0;
+
+    pIter->base.iRowid = pSeg->iRowid;
+
+    while( a<pEnd ){
+      iPrev += (int)a++[0] - 2;
+      while( *aiCol<iPrev ){
+        aiCol++;
+        if( aiCol==aiColEnd ) goto setoutputs_col_out;
+      }
+      if( *aiCol==iPrev ){
+        *aOut++ = (u8)((iPrev - iPrevOut) + 2);
+        iPrevOut = iPrev;
+      }
+    }
+
+setoutputs_col_out:
+    pIter->base.pData = pIter->poslist.p;
+    pIter->base.nData = aOut - pIter->poslist.p;
+  }
+}
+
+/*
+** xSetOutputs callback used by detail=full when there is a column filter.
+*/
+static void fts5IterSetOutputs_Full(Fts5Iter *pIter, Fts5SegIter *pSeg){
+  Fts5Colset *pColset = pIter->pColset;
+  pIter->base.iRowid = pSeg->iRowid;
+
+  assert( pIter->pIndex->pConfig->eDetail==FTS5_DETAIL_FULL );
+  assert( pColset );
+
+  if( pSeg->iLeafOffset+pSeg->nPos<=pSeg->pLeaf->szLeaf ){
+    /* All data is stored on the current page. Populate the output 
+    ** variables to point into the body of the page object. */
+    const u8 *a = &pSeg->pLeaf->p[pSeg->iLeafOffset];
+    int *pRc = &pIter->pIndex->rc;
+    fts5BufferZero(&pIter->poslist);
+    fts5IndexExtractColset(pRc, pColset, a, pSeg->nPos, pIter);
+  }else{
+    /* The data is distributed over two or more pages. Copy it into the
+    ** Fts5Iter.poslist buffer and then set the output pointer to point
+    ** to this buffer.  */
+    fts5BufferZero(&pIter->poslist);
+    fts5SegiterPoslist(pIter->pIndex, pSeg, pColset, &pIter->poslist);
+    pIter->base.pData = pIter->poslist.p;
+    pIter->base.nData = pIter->poslist.n;
+  }
+}
+
+static void fts5IterSetOutputCb(int *pRc, Fts5Iter *pIter){
+  assert( pIter!=0 || (*pRc)!=SQLITE_OK );
+  if( *pRc==SQLITE_OK ){
+    Fts5Config *pConfig = pIter->pIndex->pConfig;
+    if( pConfig->eDetail==FTS5_DETAIL_NONE ){
+      pIter->xSetOutputs = fts5IterSetOutputs_None;
+    }
+
+    else if( pIter->pColset==0 ){
+      pIter->xSetOutputs = fts5IterSetOutputs_Nocolset;
+    }
+
+    else if( pIter->pColset->nCol==0 ){
+      pIter->xSetOutputs = fts5IterSetOutputs_ZeroColset;
+    }
+
+    else if( pConfig->eDetail==FTS5_DETAIL_FULL ){
+      pIter->xSetOutputs = fts5IterSetOutputs_Full;
+    }
+
+    else{
+      assert( pConfig->eDetail==FTS5_DETAIL_COLUMNS );
+      if( pConfig->nCol<=100 ){
+        pIter->xSetOutputs = fts5IterSetOutputs_Col100;
+        sqlite3Fts5BufferSize(pRc, &pIter->poslist, pConfig->nCol);
+      }else{
+        pIter->xSetOutputs = fts5IterSetOutputs_Col;
+      }
+    }
+  }
+}
+
+/*
+** All the component segment-iterators of pIter have been set up. This
+** functions finishes setup for iterator pIter itself.
+*/
+static void fts5MultiIterFinishSetup(Fts5Index *p, Fts5Iter *pIter){
+  int iIter;
+  for(iIter=pIter->nSeg-1; iIter>0; iIter--){
+    int iEq;
+    if( (iEq = fts5MultiIterDoCompare(pIter, iIter)) ){
+      Fts5SegIter *pSeg = &pIter->aSeg[iEq];
+      if( p->rc==SQLITE_OK ) pSeg->xNext(p, pSeg, 0);
+      fts5MultiIterAdvanced(p, pIter, iEq, iIter);
+    }
+  }
+  fts5MultiIterSetEof(pIter);
+  fts5AssertMultiIterSetup(p, pIter);
+
+  if( (pIter->bSkipEmpty && fts5MultiIterIsEmpty(p, pIter))
+   || fts5MultiIterIsDeleted(pIter)
+  ){
+    fts5MultiIterNext(p, pIter, 0, 0);
+  }else if( pIter->base.bEof==0 ){
+    Fts5SegIter *pSeg = &pIter->aSeg[pIter->aFirst[1].iFirst];
+    pIter->xSetOutputs(pIter, pSeg);
+  }
+}
+
+/*
+** Allocate a new Fts5Iter object.
+**
+** The new object will be used to iterate through data in structure pStruct.
+** If iLevel is -ve, then all data in all segments is merged. Or, if iLevel
+** is zero or greater, data from the first nSegment segments on level iLevel
+** is merged.
+**
+** The iterator initially points to the first term/rowid entry in the 
+** iterated data.
+*/
+static void fts5MultiIterNew(
+  Fts5Index *p,                   /* FTS5 backend to iterate within */
+  Fts5Structure *pStruct,         /* Structure of specific index */
+  int flags,                      /* FTS5INDEX_QUERY_XXX flags */
+  Fts5Colset *pColset,            /* Colset to filter on (or NULL) */
+  const u8 *pTerm, int nTerm,     /* Term to seek to (or NULL/0) */
+  int iLevel,                     /* Level to iterate (-1 for all) */
+  int nSegment,                   /* Number of segments to merge (iLevel>=0) */
+  Fts5Iter **ppOut                /* New object */
+){
+  int nSeg = 0;                   /* Number of segment-iters in use */
+  int iIter = 0;                  /* */
+  int iSeg;                       /* Used to iterate through segments */
+  Fts5StructureLevel *pLvl;
+  Fts5Iter *pNew;
+
+  assert( (pTerm==0 && nTerm==0) || iLevel<0 );
+
+  /* Allocate space for the new multi-seg-iterator. */
+  if( p->rc==SQLITE_OK ){
+    if( iLevel<0 ){
+      assert( pStruct->nSegment==fts5StructureCountSegments(pStruct) );
+      nSeg = pStruct->nSegment;
+      nSeg += (p->pHash && 0==(flags & FTS5INDEX_QUERY_SKIPHASH));
+    }else{
+      nSeg = MIN(pStruct->aLevel[iLevel].nSeg, nSegment);
+    }
+  }
+  *ppOut = pNew = fts5MultiIterAlloc(p, nSeg);
+  if( pNew==0 ){
+    assert( p->rc!=SQLITE_OK );
+    goto fts5MultiIterNew_post_check;
+  }
+  pNew->bRev = (0!=(flags & FTS5INDEX_QUERY_DESC));
+  pNew->bSkipEmpty = (0!=(flags & FTS5INDEX_QUERY_SKIPEMPTY));
+  pNew->pColset = pColset;
+  if( (flags & FTS5INDEX_QUERY_NOOUTPUT)==0 ){
+    fts5IterSetOutputCb(&p->rc, pNew);
+  }
+
+  /* Initialize each of the component segment iterators. */
+  if( p->rc==SQLITE_OK ){
+    if( iLevel<0 ){
+      Fts5StructureLevel *pEnd = &pStruct->aLevel[pStruct->nLevel];
+      if( p->pHash && 0==(flags & FTS5INDEX_QUERY_SKIPHASH) ){
+        /* Add a segment iterator for the current contents of the hash table. */
+        Fts5SegIter *pIter = &pNew->aSeg[iIter++];
+        fts5SegIterHashInit(p, pTerm, nTerm, flags, pIter);
+      }
+      for(pLvl=&pStruct->aLevel[0]; pLvl<pEnd; pLvl++){
+        for(iSeg=pLvl->nSeg-1; iSeg>=0; iSeg--){
+          Fts5StructureSegment *pSeg = &pLvl->aSeg[iSeg];
+          Fts5SegIter *pIter = &pNew->aSeg[iIter++];
+          if( pTerm==0 ){
+            fts5SegIterInit(p, pSeg, pIter);
+          }else{
+            fts5SegIterSeekInit(p, pTerm, nTerm, flags, pSeg, pIter);
+          }
+        }
+      }
+    }else{
+      pLvl = &pStruct->aLevel[iLevel];
+      for(iSeg=nSeg-1; iSeg>=0; iSeg--){
+        fts5SegIterInit(p, &pLvl->aSeg[iSeg], &pNew->aSeg[iIter++]);
+      }
+    }
+    assert( iIter==nSeg );
+  }
+
+  /* If the above was successful, each component iterator now points 
+  ** to the first entry in its segment. In this case initialize the 
+  ** aFirst[] array. Or, if an error has occurred, free the iterator
+  ** object and set the output variable to NULL.  */
+  if( p->rc==SQLITE_OK ){
+    fts5MultiIterFinishSetup(p, pNew);
+  }else{
+    fts5MultiIterFree(pNew);
+    *ppOut = 0;
+  }
+
+fts5MultiIterNew_post_check:
+  assert( (*ppOut)!=0 || p->rc!=SQLITE_OK );
+  return;
+}
+
+/*
+** Create an Fts5Iter that iterates through the doclist provided
+** as the second argument.
+*/
+static void fts5MultiIterNew2(
+  Fts5Index *p,                   /* FTS5 backend to iterate within */
+  Fts5Data *pData,                /* Doclist to iterate through */
+  int bDesc,                      /* True for descending rowid order */
+  Fts5Iter **ppOut                /* New object */
+){
+  Fts5Iter *pNew;
+  pNew = fts5MultiIterAlloc(p, 2);
+  if( pNew ){
+    Fts5SegIter *pIter = &pNew->aSeg[1];
+    pIter->flags = FTS5_SEGITER_ONETERM;
+    if( pData->szLeaf>0 ){
+      pIter->pLeaf = pData;
+      pIter->iLeafOffset = fts5GetVarint(pData->p, (u64*)&pIter->iRowid);
+      pIter->iEndofDoclist = pData->nn;
+      pNew->aFirst[1].iFirst = 1;
+      if( bDesc ){
+        pNew->bRev = 1;
+        pIter->flags |= FTS5_SEGITER_REVERSE;
+        fts5SegIterReverseInitPage(p, pIter);
+      }else{
+        fts5SegIterLoadNPos(p, pIter);
+      }
+      pData = 0;
+    }else{
+      pNew->base.bEof = 1;
+    }
+    fts5SegIterSetNext(p, pIter);
+
+    *ppOut = pNew;
+  }
+
+  fts5DataRelease(pData);
+}
+
+/*
+** Return true if the iterator is at EOF or if an error has occurred. 
+** False otherwise.
+*/
+static int fts5MultiIterEof(Fts5Index *p, Fts5Iter *pIter){
+  assert( pIter!=0 || p->rc!=SQLITE_OK );
+  assert( p->rc!=SQLITE_OK
+      || (pIter->aSeg[ pIter->aFirst[1].iFirst ].pLeaf==0)==pIter->base.bEof 
+  );
+  return (p->rc || pIter->base.bEof);
+}
+
+/*
+** Return the rowid of the entry that the iterator currently points
+** to. If the iterator points to EOF when this function is called the
+** results are undefined.
+*/
+static i64 fts5MultiIterRowid(Fts5Iter *pIter){
+  assert( pIter->aSeg[ pIter->aFirst[1].iFirst ].pLeaf );
+  return pIter->aSeg[ pIter->aFirst[1].iFirst ].iRowid;
+}
+
+/*
+** Move the iterator to the next entry at or following iMatch.
+*/
+static void fts5MultiIterNextFrom(
+  Fts5Index *p, 
+  Fts5Iter *pIter, 
+  i64 iMatch
+){
+  while( 1 ){
+    i64 iRowid;
+    fts5MultiIterNext(p, pIter, 1, iMatch);
+    if( fts5MultiIterEof(p, pIter) ) break;
+    iRowid = fts5MultiIterRowid(pIter);
+    if( pIter->bRev==0 && iRowid>=iMatch ) break;
+    if( pIter->bRev!=0 && iRowid<=iMatch ) break;
+  }
+}
+
+/*
+** Return a pointer to a buffer containing the term associated with the 
+** entry that the iterator currently points to.
+*/
+static const u8 *fts5MultiIterTerm(Fts5Iter *pIter, int *pn){
+  Fts5SegIter *p = &pIter->aSeg[ pIter->aFirst[1].iFirst ];
+  *pn = p->term.n;
+  return p->term.p;
+}
+
+/*
+** Allocate a new segment-id for the structure pStruct. The new segment
+** id must be between 1 and 65335 inclusive, and must not be used by 
+** any currently existing segment. If a free segment id cannot be found,
+** SQLITE_FULL is returned.
+**
+** If an error has already occurred, this function is a no-op. 0 is 
+** returned in this case.
+*/
+static int fts5AllocateSegid(Fts5Index *p, Fts5Structure *pStruct){
+  int iSegid = 0;
+
+  if( p->rc==SQLITE_OK ){
+    if( pStruct->nSegment>=FTS5_MAX_SEGMENT ){
+      p->rc = SQLITE_FULL;
+    }else{
+      /* FTS5_MAX_SEGMENT is currently defined as 2000. So the following
+      ** array is 63 elements, or 252 bytes, in size.  */
+      u32 aUsed[(FTS5_MAX_SEGMENT+31) / 32];
+      int iLvl, iSeg;
+      int i;
+      u32 mask;
+      memset(aUsed, 0, sizeof(aUsed));
+      for(iLvl=0; iLvl<pStruct->nLevel; iLvl++){
+        for(iSeg=0; iSeg<pStruct->aLevel[iLvl].nSeg; iSeg++){
+          int iId = pStruct->aLevel[iLvl].aSeg[iSeg].iSegid;
+          if( iId<=FTS5_MAX_SEGMENT && iId>0 ){
+            aUsed[(iId-1) / 32] |= (u32)1 << ((iId-1) % 32);
+          }
+        }
+      }
+
+      for(i=0; aUsed[i]==0xFFFFFFFF; i++);
+      mask = aUsed[i];
+      for(iSegid=0; mask & ((u32)1 << iSegid); iSegid++);
+      iSegid += 1 + i*32;
+
+#ifdef SQLITE_DEBUG
+      for(iLvl=0; iLvl<pStruct->nLevel; iLvl++){
+        for(iSeg=0; iSeg<pStruct->aLevel[iLvl].nSeg; iSeg++){
+          assert_nc( iSegid!=pStruct->aLevel[iLvl].aSeg[iSeg].iSegid );
+        }
+      }
+      assert_nc( iSegid>0 && iSegid<=FTS5_MAX_SEGMENT );
+
+      {
+        sqlite3_stmt *pIdxSelect = fts5IdxSelectStmt(p);
+        if( p->rc==SQLITE_OK ){
+          u8 aBlob[2] = {0xff, 0xff};
+          sqlite3_bind_int(pIdxSelect, 1, iSegid);
+          sqlite3_bind_blob(pIdxSelect, 2, aBlob, 2, SQLITE_STATIC);
+          assert_nc( sqlite3_step(pIdxSelect)!=SQLITE_ROW );
+          p->rc = sqlite3_reset(pIdxSelect);
+          sqlite3_bind_null(pIdxSelect, 2);
+        }
+      }
+#endif
+    }
+  }
+
+  return iSegid;
+}
+
+/*
+** Discard all data currently cached in the hash-tables.
+*/
+static void fts5IndexDiscardData(Fts5Index *p){
+  assert( p->pHash || p->nPendingData==0 );
+  if( p->pHash ){
+    sqlite3Fts5HashClear(p->pHash);
+    p->nPendingData = 0;
+    p->nPendingRow = 0;
+    p->flushRc = SQLITE_OK;
+  }
+  p->nContentlessDelete = 0;
+}
+
+/*
+** Return the size of the prefix, in bytes, that buffer 
+** (pNew/<length-unknown>) shares with buffer (pOld/nOld).
+**
+** Buffer (pNew/<length-unknown>) is guaranteed to be greater 
+** than buffer (pOld/nOld).
+*/
+static int fts5PrefixCompress(int nOld, const u8 *pOld, const u8 *pNew){
+  int i;
+  for(i=0; i<nOld; i++){
+    if( pOld[i]!=pNew[i] ) break;
+  }
+  return i;
+}
+
+static void fts5WriteDlidxClear(
+  Fts5Index *p, 
+  Fts5SegWriter *pWriter,
+  int bFlush                      /* If true, write dlidx to disk */
+){
+  int i;
+  assert( bFlush==0 || (pWriter->nDlidx>0 && pWriter->aDlidx[0].buf.n>0) );
+  for(i=0; i<pWriter->nDlidx; i++){
+    Fts5DlidxWriter *pDlidx = &pWriter->aDlidx[i];
+    if( pDlidx->buf.n==0 ) break;
+    if( bFlush ){
+      assert( pDlidx->pgno!=0 );
+      fts5DataWrite(p, 
+          FTS5_DLIDX_ROWID(pWriter->iSegid, i, pDlidx->pgno),
+          pDlidx->buf.p, pDlidx->buf.n
+      );
+    }
+    sqlite3Fts5BufferZero(&pDlidx->buf);
+    pDlidx->bPrevValid = 0;
+  }
+}
+
+/*
+** Grow the pWriter->aDlidx[] array to at least nLvl elements in size.
+** Any new array elements are zeroed before returning.
+*/
+static int fts5WriteDlidxGrow(
+  Fts5Index *p,
+  Fts5SegWriter *pWriter,
+  int nLvl
+){
+  if( p->rc==SQLITE_OK && nLvl>=pWriter->nDlidx ){
+    Fts5DlidxWriter *aDlidx = (Fts5DlidxWriter*)sqlite3_realloc64(
+        pWriter->aDlidx, sizeof(Fts5DlidxWriter) * nLvl
+    );
+    if( aDlidx==0 ){
+      p->rc = SQLITE_NOMEM;
+    }else{
+      size_t nByte = sizeof(Fts5DlidxWriter) * (nLvl - pWriter->nDlidx);
+      memset(&aDlidx[pWriter->nDlidx], 0, nByte);
+      pWriter->aDlidx = aDlidx;
+      pWriter->nDlidx = nLvl;
+    }
+  }
+  return p->rc;
+}
+
+/*
+** If the current doclist-index accumulating in pWriter->aDlidx[] is large
+** enough, flush it to disk and return 1. Otherwise discard it and return
+** zero.
+*/
+static int fts5WriteFlushDlidx(Fts5Index *p, Fts5SegWriter *pWriter){
+  int bFlag = 0;
+
+  /* If there were FTS5_MIN_DLIDX_SIZE or more empty leaf pages written
+  ** to the database, also write the doclist-index to disk.  */
+  if( pWriter->aDlidx[0].buf.n>0 && pWriter->nEmpty>=FTS5_MIN_DLIDX_SIZE ){
+    bFlag = 1;
+  }
+  fts5WriteDlidxClear(p, pWriter, bFlag);
+  pWriter->nEmpty = 0;
+  return bFlag;
+}
+
+/*
+** This function is called whenever processing of the doclist for the 
+** last term on leaf page (pWriter->iBtPage) is completed. 
+**
+** The doclist-index for that term is currently stored in-memory within the
+** Fts5SegWriter.aDlidx[] array. If it is large enough, this function
+** writes it out to disk. Or, if it is too small to bother with, discards
+** it.
+**
+** Fts5SegWriter.btterm currently contains the first term on page iBtPage.
+*/
+static void fts5WriteFlushBtree(Fts5Index *p, Fts5SegWriter *pWriter){
+  int bFlag;
+
+  assert( pWriter->iBtPage || pWriter->nEmpty==0 );
+  if( pWriter->iBtPage==0 ) return;
+  bFlag = fts5WriteFlushDlidx(p, pWriter);
+
+  if( p->rc==SQLITE_OK ){
+    const char *z = (pWriter->btterm.n>0?(const char*)pWriter->btterm.p:"");
+    /* The following was already done in fts5WriteInit(): */
+    /* sqlite3_bind_int(p->pIdxWriter, 1, pWriter->iSegid); */
+    sqlite3_bind_blob(p->pIdxWriter, 2, z, pWriter->btterm.n, SQLITE_STATIC);
+    sqlite3_bind_int64(p->pIdxWriter, 3, bFlag + ((i64)pWriter->iBtPage<<1));
+    sqlite3_step(p->pIdxWriter);
+    p->rc = sqlite3_reset(p->pIdxWriter);
+    sqlite3_bind_null(p->pIdxWriter, 2);
+  }
+  pWriter->iBtPage = 0;
+}
+
+/*
+** This is called once for each leaf page except the first that contains
+** at least one term. Argument (nTerm/pTerm) is the split-key - a term that
+** is larger than all terms written to earlier leaves, and equal to or
+** smaller than the first term on the new leaf.
+**
+** If an error occurs, an error code is left in Fts5Index.rc. If an error
+** has already occurred when this function is called, it is a no-op.
+*/
+static void fts5WriteBtreeTerm(
+  Fts5Index *p,                   /* FTS5 backend object */
+  Fts5SegWriter *pWriter,         /* Writer object */
+  int nTerm, const u8 *pTerm      /* First term on new page */
+){
+  fts5WriteFlushBtree(p, pWriter);
+  if( p->rc==SQLITE_OK ){
+    fts5BufferSet(&p->rc, &pWriter->btterm, nTerm, pTerm);
+    pWriter->iBtPage = pWriter->writer.pgno;
+  }
+}
+
+/*
+** This function is called when flushing a leaf page that contains no
+** terms at all to disk.
+*/
+static void fts5WriteBtreeNoTerm(
+  Fts5Index *p,                   /* FTS5 backend object */
+  Fts5SegWriter *pWriter          /* Writer object */
+){
+  /* If there were no rowids on the leaf page either and the doclist-index
+  ** has already been started, append an 0x00 byte to it.  */
+  if( pWriter->bFirstRowidInPage && pWriter->aDlidx[0].buf.n>0 ){
+    Fts5DlidxWriter *pDlidx = &pWriter->aDlidx[0];
+    assert( pDlidx->bPrevValid );
+    sqlite3Fts5BufferAppendVarint(&p->rc, &pDlidx->buf, 0);
+  }
+
+  /* Increment the "number of sequential leaves without a term" counter. */
+  pWriter->nEmpty++;
+}
+
+static i64 fts5DlidxExtractFirstRowid(Fts5Buffer *pBuf){
+  i64 iRowid;
+  int iOff;
+
+  iOff = 1 + fts5GetVarint(&pBuf->p[1], (u64*)&iRowid);
+  fts5GetVarint(&pBuf->p[iOff], (u64*)&iRowid);
+  return iRowid;
+}
+
+/*
+** Rowid iRowid has just been appended to the current leaf page. It is the
+** first on the page. This function appends an appropriate entry to the current
+** doclist-index.
+*/
+static void fts5WriteDlidxAppend(
+  Fts5Index *p, 
+  Fts5SegWriter *pWriter, 
+  i64 iRowid
+){
+  int i;
+  int bDone = 0;
+
+  for(i=0; p->rc==SQLITE_OK && bDone==0; i++){
+    i64 iVal;
+    Fts5DlidxWriter *pDlidx = &pWriter->aDlidx[i];
+
+    if( pDlidx->buf.n>=p->pConfig->pgsz ){
+      /* The current doclist-index page is full. Write it to disk and push
+      ** a copy of iRowid (which will become the first rowid on the next
+      ** doclist-index leaf page) up into the next level of the b-tree 
+      ** hierarchy. If the node being flushed is currently the root node,
+      ** also push its first rowid upwards. */
+      pDlidx->buf.p[0] = 0x01;    /* Not the root node */
+      fts5DataWrite(p, 
+          FTS5_DLIDX_ROWID(pWriter->iSegid, i, pDlidx->pgno),
+          pDlidx->buf.p, pDlidx->buf.n
+      );
+      fts5WriteDlidxGrow(p, pWriter, i+2);
+      pDlidx = &pWriter->aDlidx[i];
+      if( p->rc==SQLITE_OK && pDlidx[1].buf.n==0 ){
+        i64 iFirst = fts5DlidxExtractFirstRowid(&pDlidx->buf);
+
+        /* This was the root node. Push its first rowid up to the new root. */
+        pDlidx[1].pgno = pDlidx->pgno;
+        sqlite3Fts5BufferAppendVarint(&p->rc, &pDlidx[1].buf, 0);
+        sqlite3Fts5BufferAppendVarint(&p->rc, &pDlidx[1].buf, pDlidx->pgno);
+        sqlite3Fts5BufferAppendVarint(&p->rc, &pDlidx[1].buf, iFirst);
+        pDlidx[1].bPrevValid = 1;
+        pDlidx[1].iPrev = iFirst;
+      }
+
+      sqlite3Fts5BufferZero(&pDlidx->buf);
+      pDlidx->bPrevValid = 0;
+      pDlidx->pgno++;
+    }else{
+      bDone = 1;
+    }
+
+    if( pDlidx->bPrevValid ){
+      iVal = (u64)iRowid - (u64)pDlidx->iPrev;
+    }else{
+      i64 iPgno = (i==0 ? pWriter->writer.pgno : pDlidx[-1].pgno);
+      assert( pDlidx->buf.n==0 );
+      sqlite3Fts5BufferAppendVarint(&p->rc, &pDlidx->buf, !bDone);
+      sqlite3Fts5BufferAppendVarint(&p->rc, &pDlidx->buf, iPgno);
+      iVal = iRowid;
+    }
+
+    sqlite3Fts5BufferAppendVarint(&p->rc, &pDlidx->buf, iVal);
+    pDlidx->bPrevValid = 1;
+    pDlidx->iPrev = iRowid;
+  }
+}
+
+static void fts5WriteFlushLeaf(Fts5Index *p, Fts5SegWriter *pWriter){
+  static const u8 zero[] = { 0x00, 0x00, 0x00, 0x00 };
+  Fts5PageWriter *pPage = &pWriter->writer;
+  i64 iRowid;
+
+  assert( (pPage->pgidx.n==0)==(pWriter->bFirstTermInPage) );
+
+  /* Set the szLeaf header field. */
+  assert( 0==fts5GetU16(&pPage->buf.p[2]) );
+  fts5PutU16(&pPage->buf.p[2], (u16)pPage->buf.n);
+
+  if( pWriter->bFirstTermInPage ){
+    /* No term was written to this page. */
+    assert( pPage->pgidx.n==0 );
+    fts5WriteBtreeNoTerm(p, pWriter);
+  }else{
+    /* Append the pgidx to the page buffer. Set the szLeaf header field. */
+    fts5BufferAppendBlob(&p->rc, &pPage->buf, pPage->pgidx.n, pPage->pgidx.p);
+  }
+
+  /* Write the page out to disk */
+  iRowid = FTS5_SEGMENT_ROWID(pWriter->iSegid, pPage->pgno);
+  fts5DataWrite(p, iRowid, pPage->buf.p, pPage->buf.n);
+
+  /* Initialize the next page. */
+  fts5BufferZero(&pPage->buf);
+  fts5BufferZero(&pPage->pgidx);
+  fts5BufferAppendBlob(&p->rc, &pPage->buf, 4, zero);
+  pPage->iPrevPgidx = 0;
+  pPage->pgno++;
+
+  /* Increase the leaves written counter */
+  pWriter->nLeafWritten++;
+
+  /* The new leaf holds no terms or rowids */
+  pWriter->bFirstTermInPage = 1;
+  pWriter->bFirstRowidInPage = 1;
+}
+
+/*
+** Append term pTerm/nTerm to the segment being written by the writer passed
+** as the second argument.
+**
+** If an error occurs, set the Fts5Index.rc error code. If an error has 
+** already occurred, this function is a no-op.
+*/
+static void fts5WriteAppendTerm(
+  Fts5Index *p, 
+  Fts5SegWriter *pWriter,
+  int nTerm, const u8 *pTerm 
+){
+  int nPrefix;                    /* Bytes of prefix compression for term */
+  Fts5PageWriter *pPage = &pWriter->writer;
+  Fts5Buffer *pPgidx = &pWriter->writer.pgidx;
+  int nMin = MIN(pPage->term.n, nTerm);
+
+  assert( p->rc==SQLITE_OK );
+  assert( pPage->buf.n>=4 );
+  assert( pPage->buf.n>4 || pWriter->bFirstTermInPage );
+
+  /* If the current leaf page is full, flush it to disk. */
+  if( (pPage->buf.n + pPgidx->n + nTerm + 2)>=p->pConfig->pgsz ){
+    if( pPage->buf.n>4 ){
+      fts5WriteFlushLeaf(p, pWriter);
+      if( p->rc!=SQLITE_OK ) return;
+    }
+    fts5BufferGrow(&p->rc, &pPage->buf, nTerm+FTS5_DATA_PADDING);
+  }
+  
+  /* TODO1: Updating pgidx here. */
+  pPgidx->n += sqlite3Fts5PutVarint(
+      &pPgidx->p[pPgidx->n], pPage->buf.n - pPage->iPrevPgidx
+  );
+  pPage->iPrevPgidx = pPage->buf.n;
+#if 0
+  fts5PutU16(&pPgidx->p[pPgidx->n], pPage->buf.n);
+  pPgidx->n += 2;
+#endif
+
+  if( pWriter->bFirstTermInPage ){
+    nPrefix = 0;
+    if( pPage->pgno!=1 ){
+      /* This is the first term on a leaf that is not the leftmost leaf in
+      ** the segment b-tree. In this case it is necessary to add a term to
+      ** the b-tree hierarchy that is (a) larger than the largest term 
+      ** already written to the segment and (b) smaller than or equal to
+      ** this term. In other words, a prefix of (pTerm/nTerm) that is one
+      ** byte longer than the longest prefix (pTerm/nTerm) shares with the
+      ** previous term. 
+      **
+      ** Usually, the previous term is available in pPage->term. The exception
+      ** is if this is the first term written in an incremental-merge step.
+      ** In this case the previous term is not available, so just write a
+      ** copy of (pTerm/nTerm) into the parent node. This is slightly
+      ** inefficient, but still correct.  */
+      int n = nTerm;
+      if( pPage->term.n ){
+        n = 1 + fts5PrefixCompress(nMin, pPage->term.p, pTerm);
+      }
+      fts5WriteBtreeTerm(p, pWriter, n, pTerm);
+      if( p->rc!=SQLITE_OK ) return;
+      pPage = &pWriter->writer;
+    }
+  }else{
+    nPrefix = fts5PrefixCompress(nMin, pPage->term.p, pTerm);
+    fts5BufferAppendVarint(&p->rc, &pPage->buf, nPrefix);
+  }
+
+  /* Append the number of bytes of new data, then the term data itself
+  ** to the page. */
+  fts5BufferAppendVarint(&p->rc, &pPage->buf, nTerm - nPrefix);
+  fts5BufferAppendBlob(&p->rc, &pPage->buf, nTerm - nPrefix, &pTerm[nPrefix]);
+
+  /* Update the Fts5PageWriter.term field. */
+  fts5BufferSet(&p->rc, &pPage->term, nTerm, pTerm);
+  pWriter->bFirstTermInPage = 0;
+
+  pWriter->bFirstRowidInPage = 0;
+  pWriter->bFirstRowidInDoclist = 1;
+
+  assert( p->rc || (pWriter->nDlidx>0 && pWriter->aDlidx[0].buf.n==0) );
+  pWriter->aDlidx[0].pgno = pPage->pgno;
+}
+
+/*
+** Append a rowid and position-list size field to the writers output. 
+*/
+static void fts5WriteAppendRowid(
+  Fts5Index *p, 
+  Fts5SegWriter *pWriter,
+  i64 iRowid
+){
+  if( p->rc==SQLITE_OK ){
+    Fts5PageWriter *pPage = &pWriter->writer;
+
+    if( (pPage->buf.n + pPage->pgidx.n)>=p->pConfig->pgsz ){
+      fts5WriteFlushLeaf(p, pWriter);
+    }
+
+    /* If this is to be the first rowid written to the page, set the 
+    ** rowid-pointer in the page-header. Also append a value to the dlidx
+    ** buffer, in case a doclist-index is required.  */
+    if( pWriter->bFirstRowidInPage ){
+      fts5PutU16(pPage->buf.p, (u16)pPage->buf.n);
+      fts5WriteDlidxAppend(p, pWriter, iRowid);
+    }
+
+    /* Write the rowid. */
+    if( pWriter->bFirstRowidInDoclist || pWriter->bFirstRowidInPage ){
+      fts5BufferAppendVarint(&p->rc, &pPage->buf, iRowid);
+    }else{
+      assert_nc( p->rc || iRowid>pWriter->iPrevRowid );
+      fts5BufferAppendVarint(&p->rc, &pPage->buf, 
+          (u64)iRowid - (u64)pWriter->iPrevRowid
+      );
+    }
+    pWriter->iPrevRowid = iRowid;
+    pWriter->bFirstRowidInDoclist = 0;
+    pWriter->bFirstRowidInPage = 0;
+  }
+}
+
+static void fts5WriteAppendPoslistData(
+  Fts5Index *p, 
+  Fts5SegWriter *pWriter, 
+  const u8 *aData, 
+  int nData
+){
+  Fts5PageWriter *pPage = &pWriter->writer;
+  const u8 *a = aData;
+  int n = nData;
+  
+  assert( p->pConfig->pgsz>0 || p->rc!=SQLITE_OK );
+  while( p->rc==SQLITE_OK 
+     && (pPage->buf.n + pPage->pgidx.n + n)>=p->pConfig->pgsz 
+  ){
+    int nReq = p->pConfig->pgsz - pPage->buf.n - pPage->pgidx.n;
+    int nCopy = 0;
+    while( nCopy<nReq ){
+      i64 dummy;
+      nCopy += fts5GetVarint(&a[nCopy], (u64*)&dummy);
+    }
+    fts5BufferAppendBlob(&p->rc, &pPage->buf, nCopy, a);
+    a += nCopy;
+    n -= nCopy;
+    fts5WriteFlushLeaf(p, pWriter);
+  }
+  if( n>0 ){
+    fts5BufferAppendBlob(&p->rc, &pPage->buf, n, a);
+  }
+}
+
+/*
+** Flush any data cached by the writer object to the database. Free any
+** allocations associated with the writer.
+*/
+static void fts5WriteFinish(
+  Fts5Index *p, 
+  Fts5SegWriter *pWriter,         /* Writer object */
+  int *pnLeaf                     /* OUT: Number of leaf pages in b-tree */
+){
+  int i;
+  Fts5PageWriter *pLeaf = &pWriter->writer;
+  if( p->rc==SQLITE_OK ){
+    assert( pLeaf->pgno>=1 );
+    if( pLeaf->buf.n>4 ){
+      fts5WriteFlushLeaf(p, pWriter);
+    }
+    *pnLeaf = pLeaf->pgno-1;
+    if( pLeaf->pgno>1 ){
+      fts5WriteFlushBtree(p, pWriter);
+    }
+  }
+  fts5BufferFree(&pLeaf->term);
+  fts5BufferFree(&pLeaf->buf);
+  fts5BufferFree(&pLeaf->pgidx);
+  fts5BufferFree(&pWriter->btterm);
+
+  for(i=0; i<pWriter->nDlidx; i++){
+    sqlite3Fts5BufferFree(&pWriter->aDlidx[i].buf);
+  }
+  sqlite3_free(pWriter->aDlidx);
+}
+
+static void fts5WriteInit(
+  Fts5Index *p, 
+  Fts5SegWriter *pWriter, 
+  int iSegid
+){
+  const int nBuffer = p->pConfig->pgsz + FTS5_DATA_PADDING;
+
+  memset(pWriter, 0, sizeof(Fts5SegWriter));
+  pWriter->iSegid = iSegid;
+
+  fts5WriteDlidxGrow(p, pWriter, 1);
+  pWriter->writer.pgno = 1;
+  pWriter->bFirstTermInPage = 1;
+  pWriter->iBtPage = 1;
+
+  assert( pWriter->writer.buf.n==0 );
+  assert( pWriter->writer.pgidx.n==0 );
+
+  /* Grow the two buffers to pgsz + padding bytes in size. */
+  sqlite3Fts5BufferSize(&p->rc, &pWriter->writer.pgidx, nBuffer);
+  sqlite3Fts5BufferSize(&p->rc, &pWriter->writer.buf, nBuffer);
+
+  if( p->pIdxWriter==0 ){
+    Fts5Config *pConfig = p->pConfig;
+    fts5IndexPrepareStmt(p, &p->pIdxWriter, sqlite3_mprintf(
+          "INSERT INTO '%q'.'%q_idx'(segid,term,pgno) VALUES(?,?,?)", 
+          pConfig->zDb, pConfig->zName
+    ));
+  }
+
+  if( p->rc==SQLITE_OK ){
+    /* Initialize the 4-byte leaf-page header to 0x00. */
+    memset(pWriter->writer.buf.p, 0, 4);
+    pWriter->writer.buf.n = 4;
+
+    /* Bind the current output segment id to the index-writer. This is an
+    ** optimization over binding the same value over and over as rows are
+    ** inserted into %_idx by the current writer.  */
+    sqlite3_bind_int(p->pIdxWriter, 1, pWriter->iSegid);
+  }
+}
+
+/*
+** Iterator pIter was used to iterate through the input segments of on an
+** incremental merge operation. This function is called if the incremental
+** merge step has finished but the input has not been completely exhausted.
+*/
+static void fts5TrimSegments(Fts5Index *p, Fts5Iter *pIter){
+  int i;
+  Fts5Buffer buf;
+  memset(&buf, 0, sizeof(Fts5Buffer));
+  for(i=0; i<pIter->nSeg && p->rc==SQLITE_OK; i++){
+    Fts5SegIter *pSeg = &pIter->aSeg[i];
+    if( pSeg->pSeg==0 ){
+      /* no-op */
+    }else if( pSeg->pLeaf==0 ){
+      /* All keys from this input segment have been transfered to the output.
+      ** Set both the first and last page-numbers to 0 to indicate that the
+      ** segment is now empty. */
+      pSeg->pSeg->pgnoLast = 0;
+      pSeg->pSeg->pgnoFirst = 0;
+    }else{
+      int iOff = pSeg->iTermLeafOffset;     /* Offset on new first leaf page */
+      i64 iLeafRowid;
+      Fts5Data *pData;
+      int iId = pSeg->pSeg->iSegid;
+      u8 aHdr[4] = {0x00, 0x00, 0x00, 0x00};
+
+      iLeafRowid = FTS5_SEGMENT_ROWID(iId, pSeg->iTermLeafPgno);
+      pData = fts5LeafRead(p, iLeafRowid);
+      if( pData ){
+        if( iOff>pData->szLeaf ){
+          /* This can occur if the pages that the segments occupy overlap - if
+          ** a single page has been assigned to more than one segment. In
+          ** this case a prior iteration of this loop may have corrupted the
+          ** segment currently being trimmed.  */
+          p->rc = FTS5_CORRUPT;
+        }else{
+          fts5BufferZero(&buf);
+          fts5BufferGrow(&p->rc, &buf, pData->nn);
+          fts5BufferAppendBlob(&p->rc, &buf, sizeof(aHdr), aHdr);
+          fts5BufferAppendVarint(&p->rc, &buf, pSeg->term.n);
+          fts5BufferAppendBlob(&p->rc, &buf, pSeg->term.n, pSeg->term.p);
+          fts5BufferAppendBlob(&p->rc, &buf,pData->szLeaf-iOff,&pData->p[iOff]);
+          if( p->rc==SQLITE_OK ){
+            /* Set the szLeaf field */
+            fts5PutU16(&buf.p[2], (u16)buf.n);
+          }
+
+          /* Set up the new page-index array */
+          fts5BufferAppendVarint(&p->rc, &buf, 4);
+          if( pSeg->iLeafPgno==pSeg->iTermLeafPgno 
+           && pSeg->iEndofDoclist<pData->szLeaf
+           && pSeg->iPgidxOff<=pData->nn
+          ){
+            int nDiff = pData->szLeaf - pSeg->iEndofDoclist;
+            fts5BufferAppendVarint(&p->rc, &buf, buf.n - 1 - nDiff - 4);
+            fts5BufferAppendBlob(&p->rc, &buf, 
+                pData->nn - pSeg->iPgidxOff, &pData->p[pSeg->iPgidxOff]
+            );
+          }
+
+          pSeg->pSeg->pgnoFirst = pSeg->iTermLeafPgno;
+          fts5DataDelete(p, FTS5_SEGMENT_ROWID(iId, 1), iLeafRowid);
+          fts5DataWrite(p, iLeafRowid, buf.p, buf.n);
+        }
+        fts5DataRelease(pData);
+      }
+    }
+  }
+  fts5BufferFree(&buf);
+}
+
+static void fts5MergeChunkCallback(
+  Fts5Index *p, 
+  void *pCtx, 
+  const u8 *pChunk, int nChunk
+){
+  Fts5SegWriter *pWriter = (Fts5SegWriter*)pCtx;
+  fts5WriteAppendPoslistData(p, pWriter, pChunk, nChunk);
+}
+
+/*
+**
+*/
+static void fts5IndexMergeLevel(
+  Fts5Index *p,                   /* FTS5 backend object */
+  Fts5Structure **ppStruct,       /* IN/OUT: Stucture of index */
+  int iLvl,                       /* Level to read input from */
+  int *pnRem                      /* Write up to this many output leaves */
+){
+  Fts5Structure *pStruct = *ppStruct;
+  Fts5StructureLevel *pLvl = &pStruct->aLevel[iLvl];
+  Fts5StructureLevel *pLvlOut;
+  Fts5Iter *pIter = 0;       /* Iterator to read input data */
+  int nRem = pnRem ? *pnRem : 0;  /* Output leaf pages left to write */
+  int nInput;                     /* Number of input segments */
+  Fts5SegWriter writer;           /* Writer object */
+  Fts5StructureSegment *pSeg;     /* Output segment */
+  Fts5Buffer term;
+  int bOldest;                    /* True if the output segment is the oldest */
+  int eDetail = p->pConfig->eDetail;
+  const int flags = FTS5INDEX_QUERY_NOOUTPUT;
+  int bTermWritten = 0;           /* True if current term already output */
+
+  assert( iLvl<pStruct->nLevel );
+  assert( pLvl->nMerge<=pLvl->nSeg );
+
+  memset(&writer, 0, sizeof(Fts5SegWriter));
+  memset(&term, 0, sizeof(Fts5Buffer));
+  if( pLvl->nMerge ){
+    pLvlOut = &pStruct->aLevel[iLvl+1];
+    assert( pLvlOut->nSeg>0 );
+    nInput = pLvl->nMerge;
+    pSeg = &pLvlOut->aSeg[pLvlOut->nSeg-1];
+
+    fts5WriteInit(p, &writer, pSeg->iSegid);
+    writer.writer.pgno = pSeg->pgnoLast+1;
+    writer.iBtPage = 0;
+  }else{
+    int iSegid = fts5AllocateSegid(p, pStruct);
+
+    /* Extend the Fts5Structure object as required to ensure the output
+    ** segment exists. */
+    if( iLvl==pStruct->nLevel-1 ){
+      fts5StructureAddLevel(&p->rc, ppStruct);
+      pStruct = *ppStruct;
+    }
+    fts5StructureExtendLevel(&p->rc, pStruct, iLvl+1, 1, 0);
+    if( p->rc ) return;
+    pLvl = &pStruct->aLevel[iLvl];
+    pLvlOut = &pStruct->aLevel[iLvl+1];
+
+    fts5WriteInit(p, &writer, iSegid);
+
+    /* Add the new segment to the output level */
+    pSeg = &pLvlOut->aSeg[pLvlOut->nSeg];
+    pLvlOut->nSeg++;
+    pSeg->pgnoFirst = 1;
+    pSeg->iSegid = iSegid;
+    pStruct->nSegment++;
+
+    /* Read input from all segments in the input level */
+    nInput = pLvl->nSeg;
+
+    /* Set the range of origins that will go into the output segment. */
+    if( pStruct->nOriginCntr>0 ){
+      pSeg->iOrigin1 = pLvl->aSeg[0].iOrigin1;
+      pSeg->iOrigin2 = pLvl->aSeg[pLvl->nSeg-1].iOrigin2;
+    }
+  }
+  bOldest = (pLvlOut->nSeg==1 && pStruct->nLevel==iLvl+2);
+
+  assert( iLvl>=0 );
+  for(fts5MultiIterNew(p, pStruct, flags, 0, 0, 0, iLvl, nInput, &pIter);
+      fts5MultiIterEof(p, pIter)==0;
+      fts5MultiIterNext(p, pIter, 0, 0)
+  ){
+    Fts5SegIter *pSegIter = &pIter->aSeg[ pIter->aFirst[1].iFirst ];
+    int nPos;                     /* position-list size field value */
+    int nTerm;
+    const u8 *pTerm;
+
+    pTerm = fts5MultiIterTerm(pIter, &nTerm);
+    if( nTerm!=term.n || fts5Memcmp(pTerm, term.p, nTerm) ){
+      if( pnRem && writer.nLeafWritten>nRem ){
+        break;
+      }
+      fts5BufferSet(&p->rc, &term, nTerm, pTerm);
+      bTermWritten =0;
+    }
+
+    /* Check for key annihilation. */
+    if( pSegIter->nPos==0 && (bOldest || pSegIter->bDel==0) ) continue;
+
+    if( p->rc==SQLITE_OK && bTermWritten==0 ){
+      /* This is a new term. Append a term to the output segment. */
+      fts5WriteAppendTerm(p, &writer, nTerm, pTerm);
+      bTermWritten = 1;
+    }
+
+    /* Append the rowid to the output */
+    /* WRITEPOSLISTSIZE */
+    fts5WriteAppendRowid(p, &writer, fts5MultiIterRowid(pIter));
+
+    if( eDetail==FTS5_DETAIL_NONE ){
+      if( pSegIter->bDel ){
+        fts5BufferAppendVarint(&p->rc, &writer.writer.buf, 0);
+        if( pSegIter->nPos>0 ){
+          fts5BufferAppendVarint(&p->rc, &writer.writer.buf, 0);
+        }
+      }
+    }else{
+      /* Append the position-list data to the output */
+      nPos = pSegIter->nPos*2 + pSegIter->bDel;
+      fts5BufferAppendVarint(&p->rc, &writer.writer.buf, nPos);
+      fts5ChunkIterate(p, pSegIter, (void*)&writer, fts5MergeChunkCallback);
+    }
+  }
+
+  /* Flush the last leaf page to disk. Set the output segment b-tree height
+  ** and last leaf page number at the same time.  */
+  fts5WriteFinish(p, &writer, &pSeg->pgnoLast);
+
+  assert( pIter!=0 || p->rc!=SQLITE_OK );
+  if( fts5MultiIterEof(p, pIter) ){
+    int i;
+
+    /* Remove the redundant segments from the %_data table */
+    assert( pSeg->nEntry==0 );
+    for(i=0; i<nInput; i++){
+      Fts5StructureSegment *pOld = &pLvl->aSeg[i];
+      pSeg->nEntry += (pOld->nEntry - pOld->nEntryTombstone);
+      fts5DataRemoveSegment(p, pOld);
+    }
+
+    /* Remove the redundant segments from the input level */
+    if( pLvl->nSeg!=nInput ){
+      int nMove = (pLvl->nSeg - nInput) * sizeof(Fts5StructureSegment);
+      memmove(pLvl->aSeg, &pLvl->aSeg[nInput], nMove);
+    }
+    pStruct->nSegment -= nInput;
+    pLvl->nSeg -= nInput;
+    pLvl->nMerge = 0;
+    if( pSeg->pgnoLast==0 ){
+      pLvlOut->nSeg--;
+      pStruct->nSegment--;
+    }
+  }else{
+    assert( pSeg->pgnoLast>0 );
+    fts5TrimSegments(p, pIter);
+    pLvl->nMerge = nInput;
+  }
+
+  fts5MultiIterFree(pIter);
+  fts5BufferFree(&term);
+  if( pnRem ) *pnRem -= writer.nLeafWritten;
+}
+
+/*
+** If this is not a contentless_delete=1 table, or if the 'deletemerge'
+** configuration option is set to 0, then this function always returns -1.
+** Otherwise, it searches the structure object passed as the second argument
+** for a level suitable for merging due to having a large number of 
+** tombstones in the tombstone hash. If one is found, its index is returned.
+** Otherwise, if there is no suitable level, -1.
+*/
+static int fts5IndexFindDeleteMerge(Fts5Index *p, Fts5Structure *pStruct){
+  Fts5Config *pConfig = p->pConfig;
+  int iRet = -1;
+  if( pConfig->bContentlessDelete && pConfig->nDeleteMerge>0 ){
+    int ii;
+    int nBest = 0;
+
+    for(ii=0; ii<pStruct->nLevel; ii++){
+      Fts5StructureLevel *pLvl = &pStruct->aLevel[ii];
+      i64 nEntry = 0;
+      i64 nTomb = 0;
+      int iSeg;
+      for(iSeg=0; iSeg<pLvl->nSeg; iSeg++){
+        nEntry += pLvl->aSeg[iSeg].nEntry;
+        nTomb += pLvl->aSeg[iSeg].nEntryTombstone;
+      }
+      assert_nc( nEntry>0 || pLvl->nSeg==0 );
+      if( nEntry>0 ){
+        int nPercent = (nTomb * 100) / nEntry;
+        if( nPercent>=pConfig->nDeleteMerge && nPercent>nBest ){
+          iRet = ii;
+          nBest = nPercent;
+        }
+      }
+
+      /* If pLvl is already the input level to an ongoing merge, look no
+      ** further for a merge candidate. The caller should be allowed to
+      ** continue merging from pLvl first.  */
+      if( pLvl->nMerge ) break;
+    }
+  }
+  return iRet;
+}
+
+/*
+** Do up to nPg pages of automerge work on the index.
+**
+** Return true if any changes were actually made, or false otherwise.
+*/
+static int fts5IndexMerge(
+  Fts5Index *p,                   /* FTS5 backend object */
+  Fts5Structure **ppStruct,       /* IN/OUT: Current structure of index */
+  int nPg,                        /* Pages of work to do */
+  int nMin                        /* Minimum number of segments to merge */
+){
+  int nRem = nPg;
+  int bRet = 0;
+  Fts5Structure *pStruct = *ppStruct;
+  while( nRem>0 && p->rc==SQLITE_OK ){
+    int iLvl;                   /* To iterate through levels */
+    int iBestLvl = 0;           /* Level offering the most input segments */
+    int nBest = 0;              /* Number of input segments on best level */
+
+    /* Set iBestLvl to the level to read input segments from. Or to -1 if
+    ** there is no level suitable to merge segments from.  */
+    assert( pStruct->nLevel>0 );
+    for(iLvl=0; iLvl<pStruct->nLevel; iLvl++){
+      Fts5StructureLevel *pLvl = &pStruct->aLevel[iLvl];
+      if( pLvl->nMerge ){
+        if( pLvl->nMerge>nBest ){
+          iBestLvl = iLvl;
+          nBest = nMin;
+        }
+        break;
+      }
+      if( pLvl->nSeg>nBest ){
+        nBest = pLvl->nSeg;
+        iBestLvl = iLvl;
+      }
+    }
+    if( nBest<nMin ){
+      iBestLvl = fts5IndexFindDeleteMerge(p, pStruct);
+    }
+
+    if( iBestLvl<0 ) break;
+    bRet = 1;
+    fts5IndexMergeLevel(p, &pStruct, iBestLvl, &nRem);
+    if( p->rc==SQLITE_OK && pStruct->aLevel[iBestLvl].nMerge==0 ){
+      fts5StructurePromote(p, iBestLvl+1, pStruct);
+    }
+
+    if( nMin==1 ) nMin = 2;
+  }
+  *ppStruct = pStruct;
+  return bRet;
+}
+
+/*
+** A total of nLeaf leaf pages of data has just been flushed to a level-0
+** segment. This function updates the write-counter accordingly and, if
+** necessary, performs incremental merge work.
+**
+** If an error occurs, set the Fts5Index.rc error code. If an error has 
+** already occurred, this function is a no-op.
+*/
+static void fts5IndexAutomerge(
+  Fts5Index *p,                   /* FTS5 backend object */
+  Fts5Structure **ppStruct,       /* IN/OUT: Current structure of index */
+  int nLeaf                       /* Number of output leaves just written */
+){
+  if( p->rc==SQLITE_OK && p->pConfig->nAutomerge>0 && ALWAYS((*ppStruct)!=0) ){
+    Fts5Structure *pStruct = *ppStruct;
+    u64 nWrite;                   /* Initial value of write-counter */
+    int nWork;                    /* Number of work-quanta to perform */
+    int nRem;                     /* Number of leaf pages left to write */
+
+    /* Update the write-counter. While doing so, set nWork. */
+    nWrite = pStruct->nWriteCounter;
+    nWork = (int)(((nWrite + nLeaf) / p->nWorkUnit) - (nWrite / p->nWorkUnit));
+    pStruct->nWriteCounter += nLeaf;
+    nRem = (int)(p->nWorkUnit * nWork * pStruct->nLevel);
+
+    fts5IndexMerge(p, ppStruct, nRem, p->pConfig->nAutomerge);
+  }
+}
+
+static void fts5IndexCrisismerge(
+  Fts5Index *p,                   /* FTS5 backend object */
+  Fts5Structure **ppStruct        /* IN/OUT: Current structure of index */
+){
+  const int nCrisis = p->pConfig->nCrisisMerge;
+  Fts5Structure *pStruct = *ppStruct;
+  if( pStruct && pStruct->nLevel>0 ){
+    int iLvl = 0;
+    while( p->rc==SQLITE_OK && pStruct->aLevel[iLvl].nSeg>=nCrisis ){
+      fts5IndexMergeLevel(p, &pStruct, iLvl, 0);
+      assert( p->rc!=SQLITE_OK || pStruct->nLevel>(iLvl+1) );
+      fts5StructurePromote(p, iLvl+1, pStruct);
+      iLvl++;
+    }
+    *ppStruct = pStruct;
+  }
+}
+
+static int fts5IndexReturn(Fts5Index *p){
+  int rc = p->rc;
+  p->rc = SQLITE_OK;
+  return rc;
+}
+
+typedef struct Fts5FlushCtx Fts5FlushCtx;
+struct Fts5FlushCtx {
+  Fts5Index *pIdx;
+  Fts5SegWriter writer; 
+};
+
+/*
+** Buffer aBuf[] contains a list of varints, all small enough to fit
+** in a 32-bit integer. Return the size of the largest prefix of this 
+** list nMax bytes or less in size.
+*/
+static int fts5PoslistPrefix(const u8 *aBuf, int nMax){
+  int ret;
+  u32 dummy;
+  ret = fts5GetVarint32(aBuf, dummy);
+  if( ret<nMax ){
+    while( 1 ){
+      int i = fts5GetVarint32(&aBuf[ret], dummy);
+      if( (ret + i) > nMax ) break;
+      ret += i;
+    }
+  }
+  return ret;
+}
+
+/*
+** Execute the SQL statement:
+**
+**    DELETE FROM %_idx WHERE (segid, (pgno/2)) = ($iSegid, $iPgno);
+**
+** This is used when a secure-delete operation removes the last term
+** from a segment leaf page. In that case the %_idx entry is removed 
+** too. This is done to ensure that if all instances of a token are
+** removed from an fts5 database in secure-delete mode, no trace of
+** the token itself remains in the database.
+*/
+static void fts5SecureDeleteIdxEntry(
+  Fts5Index *p,                   /* FTS5 backend object */
+  int iSegid,                     /* Id of segment to delete entry for */
+  int iPgno                       /* Page number within segment */
+){
+  if( iPgno!=1 ){
+    assert( p->pConfig->iVersion==FTS5_CURRENT_VERSION_SECUREDELETE );
+    if( p->pDeleteFromIdx==0 ){
+      fts5IndexPrepareStmt(p, &p->pDeleteFromIdx, sqlite3_mprintf(
+          "DELETE FROM '%q'.'%q_idx' WHERE (segid, (pgno/2)) = (?1, ?2)",
+          p->pConfig->zDb, p->pConfig->zName
+      ));
+    }
+    if( p->rc==SQLITE_OK ){
+      sqlite3_bind_int(p->pDeleteFromIdx, 1, iSegid);
+      sqlite3_bind_int(p->pDeleteFromIdx, 2, iPgno);
+      sqlite3_step(p->pDeleteFromIdx);
+      p->rc = sqlite3_reset(p->pDeleteFromIdx);
+    }
+  }
+}
+
+/*
+** This is called when a secure-delete operation removes a position-list
+** that overflows onto segment page iPgno of segment pSeg. This function
+** rewrites node iPgno, and possibly one or more of its right-hand peers,
+** to remove this portion of the position list.
+**
+** Output variable (*pbLastInDoclist) is set to true if the position-list
+** removed is followed by a new term or the end-of-segment, or false if
+** it is followed by another rowid/position list.
+*/
+static void fts5SecureDeleteOverflow(
+  Fts5Index *p,
+  Fts5StructureSegment *pSeg,
+  int iPgno,
+  int *pbLastInDoclist
+){
+  const int bDetailNone = (p->pConfig->eDetail==FTS5_DETAIL_NONE);
+  int pgno;
+  Fts5Data *pLeaf = 0;
+  assert( iPgno!=1 );
+
+  *pbLastInDoclist = 1;
+  for(pgno=iPgno; p->rc==SQLITE_OK && pgno<=pSeg->pgnoLast; pgno++){
+    i64 iRowid = FTS5_SEGMENT_ROWID(pSeg->iSegid, pgno);
+    int iNext = 0;
+    u8 *aPg = 0;
+
+    pLeaf = fts5DataRead(p, iRowid);
+    if( pLeaf==0 ) break;
+    aPg = pLeaf->p;
+
+    iNext = fts5GetU16(&aPg[0]);
+    if( iNext!=0 ){
+      *pbLastInDoclist = 0;
+    }
+    if( iNext==0 && pLeaf->szLeaf!=pLeaf->nn ){
+      fts5GetVarint32(&aPg[pLeaf->szLeaf], iNext);
+    }
+
+    if( iNext==0 ){
+      /* The page contains no terms or rowids. Replace it with an empty
+      ** page and move on to the right-hand peer.  */
+      const u8 aEmpty[] = {0x00, 0x00, 0x00, 0x04}; 
+      assert_nc( bDetailNone==0 || pLeaf->nn==4 );
+      if( bDetailNone==0 ) fts5DataWrite(p, iRowid, aEmpty, sizeof(aEmpty));
+      fts5DataRelease(pLeaf);
+      pLeaf = 0;
+    }else if( bDetailNone ){
+      break;
+    }else if( iNext>=pLeaf->szLeaf || pLeaf->nn<pLeaf->szLeaf || iNext<4 ){
+      p->rc = FTS5_CORRUPT;
+      break;
+    }else{
+      int nShift = iNext - 4;
+      int nPg;
+
+      int nIdx = 0;
+      u8 *aIdx = 0;
+
+      /* Unless the current page footer is 0 bytes in size (in which case
+      ** the new page footer will be as well), allocate and populate a 
+      ** buffer containing the new page footer. Set stack variables aIdx 
+      ** and nIdx accordingly.  */
+      if( pLeaf->nn>pLeaf->szLeaf ){
+        int iFirst = 0;
+        int i1 = pLeaf->szLeaf;
+        int i2 = 0;
+
+        i1 += fts5GetVarint32(&aPg[i1], iFirst);
+        if( iFirst<iNext ){
+          p->rc = FTS5_CORRUPT;
+          break;
+        }
+        aIdx = sqlite3Fts5MallocZero(&p->rc, (pLeaf->nn-pLeaf->szLeaf)+2);
+        if( aIdx==0 ) break;
+        i2 = sqlite3Fts5PutVarint(aIdx, iFirst-nShift);
+        if( i1<pLeaf->nn ){
+          memcpy(&aIdx[i2], &aPg[i1], pLeaf->nn-i1);
+          i2 += (pLeaf->nn-i1);
+        }
+        nIdx = i2;
+      }
+
+      /* Modify the contents of buffer aPg[]. Set nPg to the new size 
+      ** in bytes. The new page is always smaller than the old.  */
+      nPg = pLeaf->szLeaf - nShift;
+      memmove(&aPg[4], &aPg[4+nShift], nPg-4);
+      fts5PutU16(&aPg[2], nPg);
+      if( fts5GetU16(&aPg[0]) ) fts5PutU16(&aPg[0], 4);
+      if( nIdx>0 ){
+        memcpy(&aPg[nPg], aIdx, nIdx);
+        nPg += nIdx;
+      }
+      sqlite3_free(aIdx);
+
+      /* Write the new page to disk and exit the loop */
+      assert( nPg>4 || fts5GetU16(aPg)==0 );
+      fts5DataWrite(p, iRowid, aPg, nPg);
+      break;
+    }
+  }
+  fts5DataRelease(pLeaf);
+}
+
+/*
+** Completely remove the entry that pSeg currently points to from 
+** the database.
+*/
+static void fts5DoSecureDelete(
+  Fts5Index *p,
+  Fts5SegIter *pSeg
+){
+  const int bDetailNone = (p->pConfig->eDetail==FTS5_DETAIL_NONE);
+  int iSegid = pSeg->pSeg->iSegid;
+  u8 *aPg = pSeg->pLeaf->p;
+  int nPg = pSeg->pLeaf->nn;
+  int iPgIdx = pSeg->pLeaf->szLeaf;
+
+  u64 iDelta = 0;
+  int iNextOff = 0;
+  int iOff = 0;
+  int nIdx = 0;
+  u8 *aIdx = 0;
+  int bLastInDoclist = 0;
+  int iIdx = 0;
+  int iStart = 0;
+  int iDelKeyOff = 0;       /* Offset of deleted key, if any */
+
+  nIdx = nPg-iPgIdx;
+  aIdx = sqlite3Fts5MallocZero(&p->rc, nIdx+16);
+  if( p->rc ) return;
+  memcpy(aIdx, &aPg[iPgIdx], nIdx);
+
+  /* At this point segment iterator pSeg points to the entry
+  ** this function should remove from the b-tree segment. 
+  **
+  ** In detail=full or detail=column mode, pSeg->iLeafOffset is the 
+  ** offset of the first byte in the position-list for the entry to 
+  ** remove. Immediately before this comes two varints that will also
+  ** need to be removed:
+  **
+  **     + the rowid or delta rowid value for the entry, and
+  **     + the size of the position list in bytes.
+  **
+  ** Or, in detail=none mode, there is a single varint prior to 
+  ** pSeg->iLeafOffset - the rowid or delta rowid value.
+  **
+  ** This block sets the following variables:
+  **
+  **   iStart:
+  **     The offset of the first byte of the rowid or delta-rowid
+  **     value for the doclist entry being removed.
+  **
+  **   iDelta:
+  **     The value of the rowid or delta-rowid value for the doclist
+  **     entry being removed.
+  **
+  **   iNextOff:
+  **     The offset of the next entry following the position list
+  **     for the one being removed. If the position list for this
+  **     entry overflows onto the next leaf page, this value will be
+  **     greater than pLeaf->szLeaf.
+  */
+  {
+    int iSOP;                     /* Start-Of-Position-list */
+    if( pSeg->iLeafPgno==pSeg->iTermLeafPgno ){
+      iStart = pSeg->iTermLeafOffset;
+    }else{
+      iStart = fts5GetU16(&aPg[0]);
+    }
+
+    iSOP = iStart + fts5GetVarint(&aPg[iStart], &iDelta);
+    assert_nc( iSOP<=pSeg->iLeafOffset );
+
+    if( bDetailNone ){
+      while( iSOP<pSeg->iLeafOffset ){
+        if( aPg[iSOP]==0x00 ) iSOP++;
+        if( aPg[iSOP]==0x00 ) iSOP++;
+        iStart = iSOP;
+        iSOP = iStart + fts5GetVarint(&aPg[iStart], &iDelta);
+      }
+
+      iNextOff = iSOP;
+      if( iNextOff<pSeg->iEndofDoclist && aPg[iNextOff]==0x00 ) iNextOff++;
+      if( iNextOff<pSeg->iEndofDoclist && aPg[iNextOff]==0x00 ) iNextOff++;
+
+    }else{
+      int nPos = 0;
+      iSOP += fts5GetVarint32(&aPg[iSOP], nPos);
+      while( iSOP<pSeg->iLeafOffset ){
+        iStart = iSOP + (nPos/2);
+        iSOP = iStart + fts5GetVarint(&aPg[iStart], &iDelta);
+        iSOP += fts5GetVarint32(&aPg[iSOP], nPos);
+      }
+      assert_nc( iSOP==pSeg->iLeafOffset );
+      iNextOff = pSeg->iLeafOffset + pSeg->nPos;
+    }
+  }
+
+  iOff = iStart;
+
+  /* If the position-list for the entry being removed flows over past
+  ** the end of this page, delete the portion of the position-list on the
+  ** next page and beyond.
+  **
+  ** Set variable bLastInDoclist to true if this entry happens 
+  ** to be the last rowid in the doclist for its term.  */
+  if( iNextOff>=iPgIdx ){
+    int pgno = pSeg->iLeafPgno+1;
+    fts5SecureDeleteOverflow(p, pSeg->pSeg, pgno, &bLastInDoclist);
+    iNextOff = iPgIdx;
+  }
+
+  if( pSeg->bDel==0 ){
+    if( iNextOff!=iPgIdx ){
+      /* Loop through the page-footer. If iNextOff (offset of the
+      ** entry following the one we are removing) is equal to the 
+      ** offset of a key on this page, then the entry is the last 
+      ** in its doclist. */
+      int iKeyOff = 0;
+      for(iIdx=0; iIdx<nIdx; /* no-op */){
+        u32 iVal = 0;
+        iIdx += fts5GetVarint32(&aIdx[iIdx], iVal);
+        iKeyOff += iVal;
+        if( iKeyOff==iNextOff ){
+          bLastInDoclist = 1;
+        }
+      }
+    }
+
+    /* If this is (a) the first rowid on a page and (b) is not followed by
+    ** another position list on the same page, set the "first-rowid" field
+    ** of the header to 0.  */
+    if( fts5GetU16(&aPg[0])==iStart && (bLastInDoclist || iNextOff==iPgIdx) ){
+      fts5PutU16(&aPg[0], 0);
+    }
+  }
+
+  if( pSeg->bDel ){
+    iOff += sqlite3Fts5PutVarint(&aPg[iOff], iDelta);
+    aPg[iOff++] = 0x01;
+  }else if( bLastInDoclist==0 ){
+    if( iNextOff!=iPgIdx ){
+      u64 iNextDelta = 0;
+      iNextOff += fts5GetVarint(&aPg[iNextOff], &iNextDelta);
+      iOff += sqlite3Fts5PutVarint(&aPg[iOff], iDelta + iNextDelta);
+    }
+  }else if( 
+      pSeg->iLeafPgno==pSeg->iTermLeafPgno 
+   && iStart==pSeg->iTermLeafOffset 
+  ){
+    /* The entry being removed was the only position list in its
+    ** doclist. Therefore the term needs to be removed as well. */
+    int iKey = 0;
+    int iKeyOff = 0;
+
+    /* Set iKeyOff to the offset of the term that will be removed - the
+    ** last offset in the footer that is not greater than iStart. */
+    for(iIdx=0; iIdx<nIdx; iKey++){
+      u32 iVal = 0;
+      iIdx += fts5GetVarint32(&aIdx[iIdx], iVal);
+      if( (iKeyOff+iVal)>(u32)iStart ) break;
+      iKeyOff += iVal;
+    }
+    assert_nc( iKey>=1 );
+
+    /* Set iDelKeyOff to the value of the footer entry to remove from 
+    ** the page. */
+    iDelKeyOff = iOff = iKeyOff;
+
+    if( iNextOff!=iPgIdx ){
+      /* This is the only position-list associated with the term, and there
+      ** is another term following it on this page. So the subsequent term
+      ** needs to be moved to replace the term associated with the entry
+      ** being removed. */
+      int nPrefix = 0;
+      int nSuffix = 0;
+      int nPrefix2 = 0;
+      int nSuffix2 = 0;
+
+      iDelKeyOff = iNextOff;
+      iNextOff += fts5GetVarint32(&aPg[iNextOff], nPrefix2);
+      iNextOff += fts5GetVarint32(&aPg[iNextOff], nSuffix2);
+
+      if( iKey!=1 ){
+        iKeyOff += fts5GetVarint32(&aPg[iKeyOff], nPrefix);
+      }
+      iKeyOff += fts5GetVarint32(&aPg[iKeyOff], nSuffix);
+
+      nPrefix = MIN(nPrefix, nPrefix2);
+      nSuffix = (nPrefix2 + nSuffix2) - nPrefix;
+
+      if( (iKeyOff+nSuffix)>iPgIdx || (iNextOff+nSuffix2)>iPgIdx ){
+        p->rc = FTS5_CORRUPT;
+      }else{
+        if( iKey!=1 ){
+          iOff += sqlite3Fts5PutVarint(&aPg[iOff], nPrefix);
+        }
+        iOff += sqlite3Fts5PutVarint(&aPg[iOff], nSuffix);
+        if( nPrefix2>pSeg->term.n ){
+          p->rc = FTS5_CORRUPT;
+        }else if( nPrefix2>nPrefix ){
+          memcpy(&aPg[iOff], &pSeg->term.p[nPrefix], nPrefix2-nPrefix);
+          iOff += (nPrefix2-nPrefix);
+        }
+        memmove(&aPg[iOff], &aPg[iNextOff], nSuffix2);
+        iOff += nSuffix2;
+        iNextOff += nSuffix2;
+      }
+    }
+  }else if( iStart==4 ){
+    int iPgno;
+
+    assert_nc( pSeg->iLeafPgno>pSeg->iTermLeafPgno );
+    /* The entry being removed may be the only position list in
+    ** its doclist. */
+    for(iPgno=pSeg->iLeafPgno-1; iPgno>pSeg->iTermLeafPgno; iPgno-- ){
+      Fts5Data *pPg = fts5DataRead(p, FTS5_SEGMENT_ROWID(iSegid, iPgno));
+      int bEmpty = (pPg && pPg->nn==4);
+      fts5DataRelease(pPg);
+      if( bEmpty==0 ) break;
+    }
+
+    if( iPgno==pSeg->iTermLeafPgno ){
+      i64 iId = FTS5_SEGMENT_ROWID(iSegid, pSeg->iTermLeafPgno);
+      Fts5Data *pTerm = fts5DataRead(p, iId);
+      if( pTerm && pTerm->szLeaf==pSeg->iTermLeafOffset ){
+        u8 *aTermIdx = &pTerm->p[pTerm->szLeaf];
+        int nTermIdx = pTerm->nn - pTerm->szLeaf;
+        int iTermIdx = 0;
+        int iTermOff = 0;
+
+        while( 1 ){
+          u32 iVal = 0;
+          int nByte = fts5GetVarint32(&aTermIdx[iTermIdx], iVal);
+          iTermOff += iVal;
+          if( (iTermIdx+nByte)>=nTermIdx ) break;
+          iTermIdx += nByte;
+        }
+        nTermIdx = iTermIdx;
+
+        memmove(&pTerm->p[iTermOff], &pTerm->p[pTerm->szLeaf], nTermIdx);
+        fts5PutU16(&pTerm->p[2], iTermOff);
+
+        fts5DataWrite(p, iId, pTerm->p, iTermOff+nTermIdx);
+        if( nTermIdx==0 ){
+          fts5SecureDeleteIdxEntry(p, iSegid, pSeg->iTermLeafPgno);
+        }
+      }
+      fts5DataRelease(pTerm);
+    }
+  }
+
+  /* Assuming no error has occurred, this block does final edits to the
+  ** leaf page before writing it back to disk. Input variables are:
+  **
+  **   nPg: Total initial size of leaf page.
+  **   iPgIdx: Initial offset of page footer.
+  **
+  **   iOff: Offset to move data to
+  **   iNextOff: Offset to move data from
+  */
+  if( p->rc==SQLITE_OK ){
+    const int nMove = nPg - iNextOff;     /* Number of bytes to move */
+    int nShift = iNextOff - iOff;         /* Distance to move them */
+
+    int iPrevKeyOut = 0;
+    int iKeyIn = 0;
+
+    memmove(&aPg[iOff], &aPg[iNextOff], nMove);
+    iPgIdx -= nShift;
+    nPg = iPgIdx;
+    fts5PutU16(&aPg[2], iPgIdx);
+
+    for(iIdx=0; iIdx<nIdx; /* no-op */){
+      u32 iVal = 0;
+      iIdx += fts5GetVarint32(&aIdx[iIdx], iVal);
+      iKeyIn += iVal;
+      if( iKeyIn!=iDelKeyOff ){
+        int iKeyOut = (iKeyIn - (iKeyIn>iOff ? nShift : 0));
+        nPg += sqlite3Fts5PutVarint(&aPg[nPg], iKeyOut - iPrevKeyOut);
+        iPrevKeyOut = iKeyOut;
+      }
+    }
+
+    if( iPgIdx==nPg && nIdx>0 && pSeg->iLeafPgno!=1 ){
+      fts5SecureDeleteIdxEntry(p, iSegid, pSeg->iLeafPgno);
+    }
+
+    assert_nc( nPg>4 || fts5GetU16(aPg)==0 );
+    fts5DataWrite(p, FTS5_SEGMENT_ROWID(iSegid,pSeg->iLeafPgno), aPg, nPg);
+  }
+  sqlite3_free(aIdx);
+}
+
+/*
+** This is called as part of flushing a delete to disk in 'secure-delete'
+** mode. It edits the segments within the database described by argument
+** pStruct to remove the entries for term zTerm, rowid iRowid.
+*/
+static void fts5FlushSecureDelete(
+  Fts5Index *p,
+  Fts5Structure *pStruct,
+  const char *zTerm,
+  int nTerm,
+  i64 iRowid
+){
+  const int f = FTS5INDEX_QUERY_SKIPHASH;
+  Fts5Iter *pIter = 0;            /* Used to find term instance */
+
+  fts5MultiIterNew(p, pStruct, f, 0, (const u8*)zTerm, nTerm, -1, 0, &pIter);
+  if( fts5MultiIterEof(p, pIter)==0 ){
+    i64 iThis = fts5MultiIterRowid(pIter);
+    if( iThis<iRowid ){
+      fts5MultiIterNextFrom(p, pIter, iRowid);
+    }
+
+    if( p->rc==SQLITE_OK 
+     && fts5MultiIterEof(p, pIter)==0 
+     && iRowid==fts5MultiIterRowid(pIter)
+    ){
+      Fts5SegIter *pSeg = &pIter->aSeg[pIter->aFirst[1].iFirst];
+      fts5DoSecureDelete(p, pSeg);
+    }
+  }
+
+  fts5MultiIterFree(pIter);
+}
+
+
+/*
+** Flush the contents of in-memory hash table iHash to a new level-0 
+** segment on disk. Also update the corresponding structure record.
+**
+** If an error occurs, set the Fts5Index.rc error code. If an error has 
+** already occurred, this function is a no-op.
+*/
+static void fts5FlushOneHash(Fts5Index *p){
+  Fts5Hash *pHash = p->pHash;
+  Fts5Structure *pStruct;
+  int iSegid;
+  int pgnoLast = 0;                 /* Last leaf page number in segment */
+
+  /* Obtain a reference to the index structure and allocate a new segment-id
+  ** for the new level-0 segment.  */
+  pStruct = fts5StructureRead(p);
+  fts5StructureInvalidate(p);
+
+  if( sqlite3Fts5HashIsEmpty(pHash)==0 ){
+    iSegid = fts5AllocateSegid(p, pStruct);
+    if( iSegid ){
+      const int pgsz = p->pConfig->pgsz;
+      int eDetail = p->pConfig->eDetail;
+      int bSecureDelete = p->pConfig->bSecureDelete;
+      Fts5StructureSegment *pSeg; /* New segment within pStruct */
+      Fts5Buffer *pBuf;           /* Buffer in which to assemble leaf page */
+      Fts5Buffer *pPgidx;         /* Buffer in which to assemble pgidx */
+  
+      Fts5SegWriter writer;
+      fts5WriteInit(p, &writer, iSegid);
+  
+      pBuf = &writer.writer.buf;
+      pPgidx = &writer.writer.pgidx;
+  
+      /* fts5WriteInit() should have initialized the buffers to (most likely)
+      ** the maximum space required. */
+      assert( p->rc || pBuf->nSpace>=(pgsz + FTS5_DATA_PADDING) );
+      assert( p->rc || pPgidx->nSpace>=(pgsz + FTS5_DATA_PADDING) );
+  
+      /* Begin scanning through hash table entries. This loop runs once for each
+      ** term/doclist currently stored within the hash table. */
+      if( p->rc==SQLITE_OK ){
+        p->rc = sqlite3Fts5HashScanInit(pHash, 0, 0);
+      }
+      while( p->rc==SQLITE_OK && 0==sqlite3Fts5HashScanEof(pHash) ){
+        const char *zTerm;        /* Buffer containing term */
+        int nTerm;                /* Size of zTerm in bytes */
+        const u8 *pDoclist;       /* Pointer to doclist for this term */
+        int nDoclist;             /* Size of doclist in bytes */
+  
+        /* Get the term and doclist for this entry. */
+        sqlite3Fts5HashScanEntry(pHash, &zTerm, &nTerm, &pDoclist, &nDoclist);
+        if( bSecureDelete==0 ){
+          fts5WriteAppendTerm(p, &writer, nTerm, (const u8*)zTerm);
+          if( p->rc!=SQLITE_OK ) break;
+          assert( writer.bFirstRowidInPage==0 );
+        }
+  
+        if( !bSecureDelete && pgsz>=(pBuf->n + pPgidx->n + nDoclist + 1) ){
+          /* The entire doclist will fit on the current leaf. */
+          fts5BufferSafeAppendBlob(pBuf, pDoclist, nDoclist);
+        }else{
+          int bTermWritten = !bSecureDelete;
+          i64 iRowid = 0;
+          i64 iPrev = 0;
+          int iOff = 0;
+  
+          /* The entire doclist will not fit on this leaf. The following 
+          ** loop iterates through the poslists that make up the current 
+          ** doclist.  */
+          while( p->rc==SQLITE_OK && iOff<nDoclist ){
+            u64 iDelta = 0;
+            iOff += fts5GetVarint(&pDoclist[iOff], &iDelta);
+            iRowid += iDelta;
+  
+            /* If in secure delete mode, and if this entry in the poslist is
+            ** in fact a delete, then edit the existing segments directly
+            ** using fts5FlushSecureDelete().  */
+            if( bSecureDelete ){
+              if( eDetail==FTS5_DETAIL_NONE ){
+                if( iOff<nDoclist && pDoclist[iOff]==0x00 ){
+                  fts5FlushSecureDelete(p, pStruct, zTerm, nTerm, iRowid);
+                  iOff++;
+                  if( iOff<nDoclist && pDoclist[iOff]==0x00 ){
+                    iOff++;
+                    nDoclist = 0;
+                  }else{
+                    continue;
+                  }
+                }
+              }else if( (pDoclist[iOff] & 0x01) ){
+                fts5FlushSecureDelete(p, pStruct, zTerm, nTerm, iRowid);
+                if( p->rc!=SQLITE_OK || pDoclist[iOff]==0x01 ){
+                  iOff++;
+                  continue;
+                }
+              }
+            }
+  
+            if( p->rc==SQLITE_OK && bTermWritten==0 ){
+              fts5WriteAppendTerm(p, &writer, nTerm, (const u8*)zTerm);
+              bTermWritten = 1;
+              assert( p->rc!=SQLITE_OK || writer.bFirstRowidInPage==0 );
+            }
+            
+            if( writer.bFirstRowidInPage ){
+              fts5PutU16(&pBuf->p[0], (u16)pBuf->n);   /* first rowid on page */
+              pBuf->n += sqlite3Fts5PutVarint(&pBuf->p[pBuf->n], iRowid);
+              writer.bFirstRowidInPage = 0;
+              fts5WriteDlidxAppend(p, &writer, iRowid);
+            }else{
+              u64 iRowidDelta = (u64)iRowid - (u64)iPrev;
+              pBuf->n += sqlite3Fts5PutVarint(&pBuf->p[pBuf->n], iRowidDelta);
+            }
+            if( p->rc!=SQLITE_OK ) break;
+            assert( pBuf->n<=pBuf->nSpace );
+            iPrev = iRowid;
+  
+            if( eDetail==FTS5_DETAIL_NONE ){
+              if( iOff<nDoclist && pDoclist[iOff]==0 ){
+                pBuf->p[pBuf->n++] = 0;
+                iOff++;
+                if( iOff<nDoclist && pDoclist[iOff]==0 ){
+                  pBuf->p[pBuf->n++] = 0;
+                  iOff++;
+                }
+              }
+              if( (pBuf->n + pPgidx->n)>=pgsz ){
+                fts5WriteFlushLeaf(p, &writer);
+              }
+            }else{
+              int bDel = 0;
+              int nPos = 0;
+              int nCopy = fts5GetPoslistSize(&pDoclist[iOff], &nPos, &bDel);
+              if( bDel && bSecureDelete ){
+                fts5BufferAppendVarint(&p->rc, pBuf, nPos*2);
+                iOff += nCopy;
+                nCopy = nPos;
+              }else{
+                nCopy += nPos;
+              }
+              if( (pBuf->n + pPgidx->n + nCopy) <= pgsz ){
+                /* The entire poslist will fit on the current leaf. So copy
+                ** it in one go. */
+                fts5BufferSafeAppendBlob(pBuf, &pDoclist[iOff], nCopy);
+              }else{
+                /* The entire poslist will not fit on this leaf. So it needs
+                ** to be broken into sections. The only qualification being
+                ** that each varint must be stored contiguously.  */
+                const u8 *pPoslist = &pDoclist[iOff];
+                int iPos = 0;
+                while( p->rc==SQLITE_OK ){
+                  int nSpace = pgsz - pBuf->n - pPgidx->n;
+                  int n = 0;
+                  if( (nCopy - iPos)<=nSpace ){
+                    n = nCopy - iPos;
+                  }else{
+                    n = fts5PoslistPrefix(&pPoslist[iPos], nSpace);
+                  }
+                  assert( n>0 );
+                  fts5BufferSafeAppendBlob(pBuf, &pPoslist[iPos], n);
+                  iPos += n;
+                  if( (pBuf->n + pPgidx->n)>=pgsz ){
+                    fts5WriteFlushLeaf(p, &writer);
+                  }
+                  if( iPos>=nCopy ) break;
+                }
+              }
+              iOff += nCopy;
+            }
+          }
+        }
+  
+        /* TODO2: Doclist terminator written here. */
+        /* pBuf->p[pBuf->n++] = '\0'; */
+        assert( pBuf->n<=pBuf->nSpace );
+        if( p->rc==SQLITE_OK ) sqlite3Fts5HashScanNext(pHash);
+      }
+      fts5WriteFinish(p, &writer, &pgnoLast);
+  
+      assert( p->rc!=SQLITE_OK || bSecureDelete || pgnoLast>0 );
+      if( pgnoLast>0 ){
+        /* Update the Fts5Structure. It is written back to the database by the
+        ** fts5StructureRelease() call below.  */
+        if( pStruct->nLevel==0 ){
+          fts5StructureAddLevel(&p->rc, &pStruct);
+        }
+        fts5StructureExtendLevel(&p->rc, pStruct, 0, 1, 0);
+        if( p->rc==SQLITE_OK ){
+          pSeg = &pStruct->aLevel[0].aSeg[ pStruct->aLevel[0].nSeg++ ];
+          pSeg->iSegid = iSegid;
+          pSeg->pgnoFirst = 1;
+          pSeg->pgnoLast = pgnoLast;
+          if( pStruct->nOriginCntr>0 ){
+            pSeg->iOrigin1 = pStruct->nOriginCntr;
+            pSeg->iOrigin2 = pStruct->nOriginCntr;
+            pSeg->nEntry = p->nPendingRow;
+            pStruct->nOriginCntr++;
+          }
+          pStruct->nSegment++;
+        }
+        fts5StructurePromote(p, 0, pStruct);
+      }
+    }
+  }
+
+  fts5IndexAutomerge(p, &pStruct, pgnoLast + p->nContentlessDelete);
+  fts5IndexCrisismerge(p, &pStruct);
+  fts5StructureWrite(p, pStruct);
+  fts5StructureRelease(pStruct);
+}
+
+/*
+** Flush any data stored in the in-memory hash tables to the database.
+*/
+static void fts5IndexFlush(Fts5Index *p){
+  /* Unless it is empty, flush the hash table to disk */
+  if( p->flushRc ){
+    p->rc = p->flushRc;
+    return;
+  }
+  if( p->nPendingData || p->nContentlessDelete ){
+    assert( p->pHash );
+    fts5FlushOneHash(p);
+    if( p->rc==SQLITE_OK ){
+      sqlite3Fts5HashClear(p->pHash);
+      p->nPendingData = 0;
+      p->nPendingRow = 0;
+      p->nContentlessDelete = 0;
+    }else if( p->nPendingData || p->nContentlessDelete ){
+      p->flushRc = p->rc;
+    }
+  }
+}
+
+static Fts5Structure *fts5IndexOptimizeStruct(
+  Fts5Index *p, 
+  Fts5Structure *pStruct
+){
+  Fts5Structure *pNew = 0;
+  sqlite3_int64 nByte = sizeof(Fts5Structure);
+  int nSeg = pStruct->nSegment;
+  int i;
+
+  /* Figure out if this structure requires optimization. A structure does
+  ** not require optimization if either:
+  **
+  **  1. it consists of fewer than two segments, or 
+  **  2. all segments are on the same level, or
+  **  3. all segments except one are currently inputs to a merge operation.
+  **
+  ** In the first case, if there are no tombstone hash pages, return NULL. In
+  ** the second, increment the ref-count on *pStruct and return a copy of the
+  ** pointer to it.
+  */
+  if( nSeg==0 ) return 0;
+  for(i=0; i<pStruct->nLevel; i++){
+    int nThis = pStruct->aLevel[i].nSeg;
+    int nMerge = pStruct->aLevel[i].nMerge;
+    if( nThis>0 && (nThis==nSeg || (nThis==nSeg-1 && nMerge==nThis)) ){
+      if( nSeg==1 && nThis==1 && pStruct->aLevel[i].aSeg[0].nPgTombstone==0 ){
+        return 0;
+      }
+      fts5StructureRef(pStruct);
+      return pStruct;
+    }
+    assert( pStruct->aLevel[i].nMerge<=nThis );
+  }
+
+  nByte += (pStruct->nLevel+1) * sizeof(Fts5StructureLevel);
+  pNew = (Fts5Structure*)sqlite3Fts5MallocZero(&p->rc, nByte);
+
+  if( pNew ){
+    Fts5StructureLevel *pLvl;
+    nByte = nSeg * sizeof(Fts5StructureSegment);
+    pNew->nLevel = MIN(pStruct->nLevel+1, FTS5_MAX_LEVEL);
+    pNew->nRef = 1;
+    pNew->nWriteCounter = pStruct->nWriteCounter;
+    pNew->nOriginCntr = pStruct->nOriginCntr;
+    pLvl = &pNew->aLevel[pNew->nLevel-1];
+    pLvl->aSeg = (Fts5StructureSegment*)sqlite3Fts5MallocZero(&p->rc, nByte);
+    if( pLvl->aSeg ){
+      int iLvl, iSeg;
+      int iSegOut = 0;
+      /* Iterate through all segments, from oldest to newest. Add them to
+      ** the new Fts5Level object so that pLvl->aSeg[0] is the oldest
+      ** segment in the data structure.  */
+      for(iLvl=pStruct->nLevel-1; iLvl>=0; iLvl--){
+        for(iSeg=0; iSeg<pStruct->aLevel[iLvl].nSeg; iSeg++){
+          pLvl->aSeg[iSegOut] = pStruct->aLevel[iLvl].aSeg[iSeg];
+          iSegOut++;
+        }
+      }
+      pNew->nSegment = pLvl->nSeg = nSeg;
+    }else{
+      sqlite3_free(pNew);
+      pNew = 0;
+    }
+  }
+
+  return pNew;
+}
+
+int sqlite3Fts5IndexOptimize(Fts5Index *p){
+  Fts5Structure *pStruct;
+  Fts5Structure *pNew = 0;
+
+  assert( p->rc==SQLITE_OK );
+  fts5IndexFlush(p);
+  assert( p->rc!=SQLITE_OK || p->nContentlessDelete==0 );
+  pStruct = fts5StructureRead(p);
+  assert( p->rc!=SQLITE_OK || pStruct!=0 );
+  fts5StructureInvalidate(p);
+
+  if( pStruct ){
+    pNew = fts5IndexOptimizeStruct(p, pStruct);
+  }
+  fts5StructureRelease(pStruct);
+
+  assert( pNew==0 || pNew->nSegment>0 );
+  if( pNew ){
+    int iLvl;
+    for(iLvl=0; pNew->aLevel[iLvl].nSeg==0; iLvl++){}
+    while( p->rc==SQLITE_OK && pNew->aLevel[iLvl].nSeg>0 ){
+      int nRem = FTS5_OPT_WORK_UNIT;
+      fts5IndexMergeLevel(p, &pNew, iLvl, &nRem);
+    }
+
+    fts5StructureWrite(p, pNew);
+    fts5StructureRelease(pNew);
+  }
+
+  return fts5IndexReturn(p); 
+}
+
+/*
+** This is called to implement the special "VALUES('merge', $nMerge)"
+** INSERT command.
+*/
+int sqlite3Fts5IndexMerge(Fts5Index *p, int nMerge){
+  Fts5Structure *pStruct = 0;
+
+  fts5IndexFlush(p);
+  pStruct = fts5StructureRead(p);
+  if( pStruct ){
+    int nMin = p->pConfig->nUsermerge;
+    fts5StructureInvalidate(p);
+    if( nMerge<0 ){
+      Fts5Structure *pNew = fts5IndexOptimizeStruct(p, pStruct);
+      fts5StructureRelease(pStruct);
+      pStruct = pNew;
+      nMin = 1;
+      nMerge = nMerge*-1;
+    }
+    if( pStruct && pStruct->nLevel ){
+      if( fts5IndexMerge(p, &pStruct, nMerge, nMin) ){
+        fts5StructureWrite(p, pStruct);
+      }
+    }
+    fts5StructureRelease(pStruct);
+  }
+  return fts5IndexReturn(p);
+}
+
+static void fts5AppendRowid(
+  Fts5Index *p,
+  u64 iDelta,
+  Fts5Iter *pUnused,
+  Fts5Buffer *pBuf
+){
+  UNUSED_PARAM(pUnused);
+  fts5BufferAppendVarint(&p->rc, pBuf, iDelta);
+}
+
+static void fts5AppendPoslist(
+  Fts5Index *p,
+  u64 iDelta,
+  Fts5Iter *pMulti,
+  Fts5Buffer *pBuf
+){
+  int nData = pMulti->base.nData;
+  int nByte = nData + 9 + 9 + FTS5_DATA_ZERO_PADDING;
+  assert( nData>0 );
+  if( p->rc==SQLITE_OK && 0==fts5BufferGrow(&p->rc, pBuf, nByte) ){
+    fts5BufferSafeAppendVarint(pBuf, iDelta);
+    fts5BufferSafeAppendVarint(pBuf, nData*2);
+    fts5BufferSafeAppendBlob(pBuf, pMulti->base.pData, nData);
+    memset(&pBuf->p[pBuf->n], 0, FTS5_DATA_ZERO_PADDING);
+  }
+}
+
+
+static void fts5DoclistIterNext(Fts5DoclistIter *pIter){
+  u8 *p = pIter->aPoslist + pIter->nSize + pIter->nPoslist;
+
+  assert( pIter->aPoslist || (p==0 && pIter->aPoslist==0) );
+  if( p>=pIter->aEof ){
+    pIter->aPoslist = 0;
+  }else{
+    i64 iDelta;
+
+    p += fts5GetVarint(p, (u64*)&iDelta);
+    pIter->iRowid += iDelta;
+
+    /* Read position list size */
+    if( p[0] & 0x80 ){
+      int nPos;
+      pIter->nSize = fts5GetVarint32(p, nPos);
+      pIter->nPoslist = (nPos>>1);
+    }else{
+      pIter->nPoslist = ((int)(p[0])) >> 1;
+      pIter->nSize = 1;
+    }
+
+    pIter->aPoslist = p;
+    if( &pIter->aPoslist[pIter->nPoslist]>pIter->aEof ){
+      pIter->aPoslist = 0;
+    }
+  }
+}
+
+static void fts5DoclistIterInit(
+  Fts5Buffer *pBuf, 
+  Fts5DoclistIter *pIter
+){
+  memset(pIter, 0, sizeof(*pIter));
+  if( pBuf->n>0 ){
+    pIter->aPoslist = pBuf->p;
+    pIter->aEof = &pBuf->p[pBuf->n];
+    fts5DoclistIterNext(pIter);
+  }
+}
+
+#if 0
+/*
+** Append a doclist to buffer pBuf.
+**
+** This function assumes that space within the buffer has already been
+** allocated.
+*/
+static void fts5MergeAppendDocid(
+  Fts5Buffer *pBuf,               /* Buffer to write to */
+  i64 *piLastRowid,               /* IN/OUT: Previous rowid written (if any) */
+  i64 iRowid                      /* Rowid to append */
+){
+  assert( pBuf->n!=0 || (*piLastRowid)==0 );
+  fts5BufferSafeAppendVarint(pBuf, iRowid - *piLastRowid);
+  *piLastRowid = iRowid;
+}
+#endif
+
+#define fts5MergeAppendDocid(pBuf, iLastRowid, iRowid) {                 \
+  assert( (pBuf)->n!=0 || (iLastRowid)==0 );                             \
+  fts5BufferSafeAppendVarint((pBuf), (u64)(iRowid) - (u64)(iLastRowid)); \
+  (iLastRowid) = (iRowid);                                               \
+}
+
+/*
+** Swap the contents of buffer *p1 with that of *p2.
+*/
+static void fts5BufferSwap(Fts5Buffer *p1, Fts5Buffer *p2){
+  Fts5Buffer tmp = *p1;
+  *p1 = *p2;
+  *p2 = tmp;
+}
+
+static void fts5NextRowid(Fts5Buffer *pBuf, int *piOff, i64 *piRowid){
+  int i = *piOff;
+  if( i>=pBuf->n ){
+    *piOff = -1;
+  }else{
+    u64 iVal;
+    *piOff = i + sqlite3Fts5GetVarint(&pBuf->p[i], &iVal);
+    *piRowid += iVal;
+  }
+}
+
+/*
+** This is the equivalent of fts5MergePrefixLists() for detail=none mode.
+** In this case the buffers consist of a delta-encoded list of rowids only.
+*/
+static void fts5MergeRowidLists(
+  Fts5Index *p,                   /* FTS5 backend object */
+  Fts5Buffer *p1,                 /* First list to merge */
+  int nBuf,                       /* Number of entries in apBuf[] */
+  Fts5Buffer *aBuf                /* Array of other lists to merge into p1 */
+){
+  int i1 = 0;
+  int i2 = 0;
+  i64 iRowid1 = 0;
+  i64 iRowid2 = 0;
+  i64 iOut = 0;
+  Fts5Buffer *p2 = &aBuf[0];
+  Fts5Buffer out;
+
+  (void)nBuf;
+  memset(&out, 0, sizeof(out));
+  assert( nBuf==1 );
+  sqlite3Fts5BufferSize(&p->rc, &out, p1->n + p2->n);
+  if( p->rc ) return;
+
+  fts5NextRowid(p1, &i1, &iRowid1);
+  fts5NextRowid(p2, &i2, &iRowid2);
+  while( i1>=0 || i2>=0 ){
+    if( i1>=0 && (i2<0 || iRowid1<iRowid2) ){
+      assert( iOut==0 || iRowid1>iOut );
+      fts5BufferSafeAppendVarint(&out, iRowid1 - iOut);
+      iOut = iRowid1;
+      fts5NextRowid(p1, &i1, &iRowid1);
+    }else{
+      assert( iOut==0 || iRowid2>iOut );
+      fts5BufferSafeAppendVarint(&out, iRowid2 - iOut);
+      iOut = iRowid2;
+      if( i1>=0 && iRowid1==iRowid2 ){
+        fts5NextRowid(p1, &i1, &iRowid1);
+      }
+      fts5NextRowid(p2, &i2, &iRowid2);
+    }
+  }
+
+  fts5BufferSwap(&out, p1);
+  fts5BufferFree(&out);
+}
+
+typedef struct PrefixMerger PrefixMerger;
+struct PrefixMerger {
+  Fts5DoclistIter iter;           /* Doclist iterator */
+  i64 iPos;                       /* For iterating through a position list */
+  int iOff;
+  u8 *aPos;
+  PrefixMerger *pNext;            /* Next in docid/poslist order */
+};
+
+static void fts5PrefixMergerInsertByRowid(
+  PrefixMerger **ppHead, 
+  PrefixMerger *p
+){
+  if( p->iter.aPoslist ){
+    PrefixMerger **pp = ppHead;
+    while( *pp && p->iter.iRowid>(*pp)->iter.iRowid ){
+      pp = &(*pp)->pNext;
+    }
+    p->pNext = *pp;
+    *pp = p;
+  }
+}
+
+static void fts5PrefixMergerInsertByPosition(
+  PrefixMerger **ppHead, 
+  PrefixMerger *p
+){
+  if( p->iPos>=0 ){
+    PrefixMerger **pp = ppHead;
+    while( *pp && p->iPos>(*pp)->iPos ){
+      pp = &(*pp)->pNext;
+    }
+    p->pNext = *pp;
+    *pp = p;
+  }
+}
+
+
+/*
+** Array aBuf[] contains nBuf doclists. These are all merged in with the
+** doclist in buffer p1.
+*/
+static void fts5MergePrefixLists(
+  Fts5Index *p,                   /* FTS5 backend object */
+  Fts5Buffer *p1,                 /* First list to merge */
+  int nBuf,                       /* Number of buffers in array aBuf[] */
+  Fts5Buffer *aBuf                /* Other lists to merge in */ 
+){
+#define fts5PrefixMergerNextPosition(p) \
+  sqlite3Fts5PoslistNext64((p)->aPos,(p)->iter.nPoslist,&(p)->iOff,&(p)->iPos)
+#define FTS5_MERGE_NLIST 16
+  PrefixMerger aMerger[FTS5_MERGE_NLIST];
+  PrefixMerger *pHead = 0;
+  int i;
+  int nOut = 0;
+  Fts5Buffer out = {0, 0, 0};
+  Fts5Buffer tmp = {0, 0, 0};
+  i64 iLastRowid = 0;
+
+  /* Initialize a doclist-iterator for each input buffer. Arrange them in
+  ** a linked-list starting at pHead in ascending order of rowid. Avoid
+  ** linking any iterators already at EOF into the linked list at all. */ 
+  assert( nBuf+1<=(int)(sizeof(aMerger)/sizeof(aMerger[0])) );
+  memset(aMerger, 0, sizeof(PrefixMerger)*(nBuf+1));
+  pHead = &aMerger[nBuf];
+  fts5DoclistIterInit(p1, &pHead->iter);
+  for(i=0; i<nBuf; i++){
+    fts5DoclistIterInit(&aBuf[i], &aMerger[i].iter);
+    fts5PrefixMergerInsertByRowid(&pHead, &aMerger[i]);
+    nOut += aBuf[i].n;
+  }
+  if( nOut==0 ) return;
+  nOut += p1->n + 9 + 10*nBuf;
+
+  /* The maximum size of the output is equal to the sum of the
+  ** input sizes + 1 varint (9 bytes). The extra varint is because if the
+  ** first rowid in one input is a large negative number, and the first in
+  ** the other a non-negative number, the delta for the non-negative
+  ** number will be larger on disk than the literal integer value
+  ** was.  
+  **
+  ** Or, if the input position-lists are corrupt, then the output might
+  ** include up to (nBuf+1) extra 10-byte positions created by interpreting -1
+  ** (the value PoslistNext64() uses for EOF) as a position and appending
+  ** it to the output. This can happen at most once for each input 
+  ** position-list, hence (nBuf+1) 10 byte paddings.  */
+  if( sqlite3Fts5BufferSize(&p->rc, &out, nOut) ) return;
+
+  while( pHead ){
+    fts5MergeAppendDocid(&out, iLastRowid, pHead->iter.iRowid);
+
+    if( pHead->pNext && iLastRowid==pHead->pNext->iter.iRowid ){
+      /* Merge data from two or more poslists */
+      i64 iPrev = 0;
+      int nTmp = FTS5_DATA_ZERO_PADDING;
+      int nMerge = 0;
+      PrefixMerger *pSave = pHead;
+      PrefixMerger *pThis = 0;
+      int nTail = 0;
+
+      pHead = 0;
+      while( pSave && pSave->iter.iRowid==iLastRowid ){
+        PrefixMerger *pNext = pSave->pNext;
+        pSave->iOff = 0;
+        pSave->iPos = 0;
+        pSave->aPos = &pSave->iter.aPoslist[pSave->iter.nSize];
+        fts5PrefixMergerNextPosition(pSave);
+        nTmp += pSave->iter.nPoslist + 10;
+        nMerge++;
+        fts5PrefixMergerInsertByPosition(&pHead, pSave);
+        pSave = pNext;
+      }
+
+      if( pHead==0 || pHead->pNext==0 ){
+        p->rc = FTS5_CORRUPT;
+        break;
+      }
+
+      /* See the earlier comment in this function for an explanation of why
+      ** corrupt input position lists might cause the output to consume
+      ** at most nMerge*10 bytes of unexpected space. */
+      if( sqlite3Fts5BufferSize(&p->rc, &tmp, nTmp+nMerge*10) ){
+        break;
+      }
+      fts5BufferZero(&tmp);
+
+      pThis = pHead;
+      pHead = pThis->pNext;
+      sqlite3Fts5PoslistSafeAppend(&tmp, &iPrev, pThis->iPos);
+      fts5PrefixMergerNextPosition(pThis);
+      fts5PrefixMergerInsertByPosition(&pHead, pThis);
+
+      while( pHead->pNext ){
+        pThis = pHead;
+        if( pThis->iPos!=iPrev ){
+          sqlite3Fts5PoslistSafeAppend(&tmp, &iPrev, pThis->iPos);
+        }
+        fts5PrefixMergerNextPosition(pThis);
+        pHead = pThis->pNext;
+        fts5PrefixMergerInsertByPosition(&pHead, pThis);
+      }
+
+      if( pHead->iPos!=iPrev ){
+        sqlite3Fts5PoslistSafeAppend(&tmp, &iPrev, pHead->iPos);
+      }
+      nTail = pHead->iter.nPoslist - pHead->iOff;
+
+      /* WRITEPOSLISTSIZE */
+      assert_nc( tmp.n+nTail<=nTmp );
+      assert( tmp.n+nTail<=nTmp+nMerge*10 );
+      if( tmp.n+nTail>nTmp-FTS5_DATA_ZERO_PADDING ){
+        if( p->rc==SQLITE_OK ) p->rc = FTS5_CORRUPT;
+        break;
+      }
+      fts5BufferSafeAppendVarint(&out, (tmp.n+nTail) * 2);
+      fts5BufferSafeAppendBlob(&out, tmp.p, tmp.n);
+      if( nTail>0 ){
+        fts5BufferSafeAppendBlob(&out, &pHead->aPos[pHead->iOff], nTail);
+      }
+
+      pHead = pSave;
+      for(i=0; i<nBuf+1; i++){
+        PrefixMerger *pX = &aMerger[i];
+        if( pX->iter.aPoslist && pX->iter.iRowid==iLastRowid ){
+          fts5DoclistIterNext(&pX->iter);
+          fts5PrefixMergerInsertByRowid(&pHead, pX);
+        }
+      }
+
+    }else{
+      /* Copy poslist from pHead to output */
+      PrefixMerger *pThis = pHead;
+      Fts5DoclistIter *pI = &pThis->iter;
+      fts5BufferSafeAppendBlob(&out, pI->aPoslist, pI->nPoslist+pI->nSize);
+      fts5DoclistIterNext(pI);
+      pHead = pThis->pNext;
+      fts5PrefixMergerInsertByRowid(&pHead, pThis);
+    }
+  }
+
+  fts5BufferFree(p1);
+  fts5BufferFree(&tmp);
+  memset(&out.p[out.n], 0, FTS5_DATA_ZERO_PADDING);
+  *p1 = out;
+}
+
+
+/*
+** Iterate through a range of entries in the FTS index, invoking the xVisit
+** callback for each of them.
+**
+** Parameter pToken points to an nToken buffer containing an FTS index term
+** (i.e. a document term with the preceding 1 byte index identifier -
+** FTS5_MAIN_PREFIX or similar). If bPrefix is true, then the call visits
+** all entries for terms that have pToken/nToken as a prefix. If bPrefix
+** is false, then only entries with pToken/nToken as the entire key are
+** visited. 
+**
+** If the current table is a tokendata=1 table, then if bPrefix is true then
+** each index term is treated separately. However, if bPrefix is false, then
+** all index terms corresponding to pToken/nToken are collapsed into a single
+** term before the callback is invoked.
+**
+** The callback invoked for each entry visited is specified by paramter xVisit.
+** Each time it is invoked, it is passed a pointer to the Fts5Index object,
+** a copy of the 7th paramter to this function (pCtx) and a pointer to the
+** iterator that indicates the current entry. If the current entry is the
+** first with a new term (i.e. different from that of the previous entry,
+** including the very first term), then the final two parameters are passed
+** a pointer to the term and its size in bytes, respectively. If the current
+** entry is not the first associated with its term, these two parameters
+** are passed 0.
+**
+** If parameter pColset is not NULL, then it is used to filter entries before
+** the callback is invoked.
+*/
+static int fts5VisitEntries(
+  Fts5Index *p,                   /* Fts5 index object */
+  Fts5Colset *pColset,            /* Columns filter to apply, or NULL */
+  u8 *pToken,                     /* Buffer containing token */
+  int nToken,                     /* Size of buffer pToken in bytes */
+  int bPrefix,                    /* True for a prefix scan */
+  void (*xVisit)(Fts5Index*, void *pCtx, Fts5Iter *pIter, const u8*, int),
+  void *pCtx                      /* Passed as second argument to xVisit() */
+){
+  const int flags = (bPrefix ? FTS5INDEX_QUERY_SCAN : 0)
+                  | FTS5INDEX_QUERY_SKIPEMPTY 
+                  | FTS5INDEX_QUERY_NOOUTPUT;
+  Fts5Iter *p1 = 0;     /* Iterator used to gather data from index */
+  int bNewTerm = 1;
+  Fts5Structure *pStruct = fts5StructureRead(p);
+
+  fts5MultiIterNew(p, pStruct, flags, pColset, pToken, nToken, -1, 0, &p1);
+  fts5IterSetOutputCb(&p->rc, p1);
+  for( /* no-op */ ;
+      fts5MultiIterEof(p, p1)==0;
+      fts5MultiIterNext2(p, p1, &bNewTerm)
+  ){
+    Fts5SegIter *pSeg = &p1->aSeg[ p1->aFirst[1].iFirst ];
+    int nNew = 0;
+    const u8 *pNew = 0;
+
+    p1->xSetOutputs(p1, pSeg);
+    if( p->rc ) break;
+
+    if( bNewTerm ){
+      nNew = pSeg->term.n;
+      pNew = pSeg->term.p;
+      if( nNew<nToken || memcmp(pToken, pNew, nToken) ) break;
+    }
+
+    xVisit(p, pCtx, p1, pNew, nNew);
+  }
+  fts5MultiIterFree(p1);
+
+  fts5StructureRelease(pStruct);
+  return p->rc;
+}
+
+
+/*
+** Usually, a tokendata=1 iterator (struct Fts5TokenDataIter) accumulates an
+** array of these for each row it visits (so all iRowid fields are the same).
+** Or, for an iterator used by an "ORDER BY rank" query, it accumulates an
+** array of these for the entire query (in which case iRowid fields may take
+** a variety of values).
+**
+** Each instance in the array indicates the iterator (and therefore term)
+** associated with position iPos of rowid iRowid. This is used by the
+** xInstToken() API.
+**
+** iRowid:
+**   Rowid for the current entry.
+**
+** iPos:
+**   Position of current entry within row. In the usual ((iCol<<32)+iOff)
+**   format (e.g. see macros FTS5_POS2COLUMN() and FTS5_POS2OFFSET()).
+**
+** iIter:
+**   If the Fts5TokenDataIter iterator that the entry is part of is
+**   actually an iterator (i.e. with nIter>0, not just a container for
+**   Fts5TokenDataMap structures), then this variable is an index into
+**   the apIter[] array. The corresponding term is that which the iterator
+**   at apIter[iIter] currently points to.
+**
+**   Or, if the Fts5TokenDataIter iterator is just a container object
+**   (nIter==0), then iIter is an index into the term.p[] buffer where
+**   the term is stored.
+**
+** nByte:
+**   In the case where iIter is an index into term.p[], this variable
+**   is the size of the term in bytes. If iIter is an index into apIter[],
+**   this variable is unused.
+*/
+struct Fts5TokenDataMap {
+  i64 iRowid;                     /* Row this token is located in */
+  i64 iPos;                       /* Position of token */
+  int iIter;                      /* Iterator token was read from */
+  int nByte;                      /* Length of token in bytes (or 0) */
+};
+
+/*
+** An object used to supplement Fts5Iter for tokendata=1 iterators.
+**
+** This object serves two purposes. The first is as a container for an array
+** of Fts5TokenDataMap structures, which are used to find the token required
+** when the xInstToken() API is used. This is done by the nMapAlloc, nMap and
+** aMap[] variables.
+*/
+struct Fts5TokenDataIter {
+  int nMapAlloc;                  /* Allocated size of aMap[] in entries */
+  int nMap;                       /* Number of valid entries in aMap[] */
+  Fts5TokenDataMap *aMap;         /* Array of (rowid+pos -> token) mappings */
+
+  /* The following are used for prefix-queries only. */
+  Fts5Buffer terms;
+
+  /* The following are used for other full-token tokendata queries only. */
+  int nIter;
+  int nIterAlloc;
+  Fts5PoslistReader *aPoslistReader;
+  int *aPoslistToIter;
+  Fts5Iter *apIter[1];
+};
+
+/*
+** The two input arrays - a1[] and a2[] - are in sorted order. This function
+** merges the two arrays together and writes the result to output array 
+** aOut[]. aOut[] is guaranteed to be large enough to hold the result.
+**
+** Duplicate entries are copied into the output. So the size of the output
+** array is always (n1+n2) entries.
+*/
+static void fts5TokendataMerge(
+  Fts5TokenDataMap *a1, int n1,   /* Input array 1 */
+  Fts5TokenDataMap *a2, int n2,   /* Input array 2 */
+  Fts5TokenDataMap *aOut          /* Output array */
+){
+  int i1 = 0;
+  int i2 = 0;
+
+  assert( n1>=0 && n2>=0 );
+  while( i1<n1 || i2<n2 ){
+    Fts5TokenDataMap *pOut = &aOut[i1+i2];
+    if( i2>=n2 || (i1<n1 && (
+        a1[i1].iRowid<a2[i2].iRowid
+     || (a1[i1].iRowid==a2[i2].iRowid && a1[i1].iPos<=a2[i2].iPos)
+    ))){
+      memcpy(pOut, &a1[i1], sizeof(Fts5TokenDataMap));
+      i1++;
+    }else{
+      memcpy(pOut, &a2[i2], sizeof(Fts5TokenDataMap));
+      i2++;
+    }
+  }
+}
+
+
+/*
+** Append a mapping to the token-map belonging to object pT.
+*/
+static void fts5TokendataIterAppendMap(
+  Fts5Index *p, 
+  Fts5TokenDataIter *pT, 
+  int iIter,
+  int nByte,
+  i64 iRowid, 
+  i64 iPos
+){
+  if( p->rc==SQLITE_OK ){
+    if( pT->nMap==pT->nMapAlloc ){
+      int nNew = pT->nMapAlloc ? pT->nMapAlloc*2 : 64;
+      int nAlloc = nNew * sizeof(Fts5TokenDataMap);
+      Fts5TokenDataMap *aNew;
+
+      aNew = (Fts5TokenDataMap*)sqlite3_realloc(pT->aMap, nAlloc);
+      if( aNew==0 ){
+        p->rc = SQLITE_NOMEM;
+        return;
+      }
+
+      pT->aMap = aNew;
+      pT->nMapAlloc = nNew;
+    }
+
+    pT->aMap[pT->nMap].iRowid = iRowid;
+    pT->aMap[pT->nMap].iPos = iPos;
+    pT->aMap[pT->nMap].iIter = iIter;
+    pT->aMap[pT->nMap].nByte = nByte;
+    pT->nMap++;
+  }
+}
+
+/*
+** Sort the contents of the pT->aMap[] array.
+**
+** The sorting algorithm requries a malloc(). If this fails, an error code
+** is left in Fts5Index.rc before returning.
+*/
+static void fts5TokendataIterSortMap(Fts5Index *p, Fts5TokenDataIter *pT){
+  Fts5TokenDataMap *aTmp = 0;
+  int nByte = pT->nMap * sizeof(Fts5TokenDataMap);
+
+  aTmp = (Fts5TokenDataMap*)sqlite3Fts5MallocZero(&p->rc, nByte);
+  if( aTmp ){
+    Fts5TokenDataMap *a1 = pT->aMap;
+    Fts5TokenDataMap *a2 = aTmp;
+    i64 nHalf;
+
+    for(nHalf=1; nHalf<pT->nMap; nHalf=nHalf*2){
+      int i1;
+      for(i1=0; i1<pT->nMap; i1+=(nHalf*2)){
+        int n1 = MIN(nHalf, pT->nMap-i1);
+        int n2 = MIN(nHalf, pT->nMap-i1-n1);
+        fts5TokendataMerge(&a1[i1], n1, &a1[i1+n1], n2, &a2[i1]);
+      }
+      SWAPVAL(Fts5TokenDataMap*, a1, a2);
+    }
+
+    if( a1!=pT->aMap ){
+      memcpy(pT->aMap, a1, pT->nMap*sizeof(Fts5TokenDataMap));
+    }
+    sqlite3_free(aTmp);
+
+#ifdef SQLITE_DEBUG
+    {
+      int ii;
+      for(ii=1; ii<pT->nMap; ii++){
+        Fts5TokenDataMap *p1 = &pT->aMap[ii-1];
+        Fts5TokenDataMap *p2 = &pT->aMap[ii];
+        assert( p1->iRowid<p2->iRowid 
+             || (p1->iRowid==p2->iRowid && p1->iPos<=p2->iPos)
+        );
+      }
+    }
+#endif
+  }
+}
+
+/*
+** Delete an Fts5TokenDataIter structure and its contents.
+*/
+static void fts5TokendataIterDelete(Fts5TokenDataIter *pSet){
+  if( pSet ){
+    int ii;
+    for(ii=0; ii<pSet->nIter; ii++){
+      fts5MultiIterFree(pSet->apIter[ii]);
+    }
+    fts5BufferFree(&pSet->terms);
+    sqlite3_free(pSet->aPoslistReader);
+    sqlite3_free(pSet->aMap);
+    sqlite3_free(pSet);
+  }
+}
+
+
+/*
+** fts5VisitEntries() context object used by fts5SetupPrefixIterTokendata()
+** to pass data to prefixIterSetupTokendataCb().
+*/
+typedef struct TokendataSetupCtx TokendataSetupCtx;
+struct TokendataSetupCtx {
+  Fts5TokenDataIter *pT;          /* Object being populated with mappings */
+  int iTermOff;                   /* Offset of current term in terms.p[] */
+  int nTermByte;                  /* Size of current term in bytes */
+};
+
+/*
+** fts5VisitEntries() callback used by fts5SetupPrefixIterTokendata(). This
+** callback adds an entry to the Fts5TokenDataIter.aMap[] array for each
+** position in the current position-list. It doesn't matter that some of
+** these may be out of order - they will be sorted later.
+*/
+static void prefixIterSetupTokendataCb(
+  Fts5Index *p, 
+  void *pCtx, 
+  Fts5Iter *p1, 
+  const u8 *pNew,
+  int nNew
+){
+  TokendataSetupCtx *pSetup = (TokendataSetupCtx*)pCtx;
+  int iPosOff = 0;
+  i64 iPos = 0;
+
+  if( pNew ){
+    pSetup->nTermByte = nNew-1;
+    pSetup->iTermOff = pSetup->pT->terms.n;
+    fts5BufferAppendBlob(&p->rc, &pSetup->pT->terms, nNew-1, pNew+1);
+  }
+
+  while( 0==sqlite3Fts5PoslistNext64(
+     p1->base.pData, p1->base.nData, &iPosOff, &iPos
+  ) ){
+    fts5TokendataIterAppendMap(p, 
+        pSetup->pT, pSetup->iTermOff, pSetup->nTermByte, p1->base.iRowid, iPos
+    );
+  }
+}
+
+
+/*
+** Context object passed by fts5SetupPrefixIter() to fts5VisitEntries().
+*/
+typedef struct PrefixSetupCtx PrefixSetupCtx;
+struct PrefixSetupCtx {
+  void (*xMerge)(Fts5Index*, Fts5Buffer*, int, Fts5Buffer*);
+  void (*xAppend)(Fts5Index*, u64, Fts5Iter*, Fts5Buffer*);
+  i64 iLastRowid;
+  int nMerge;
+  Fts5Buffer *aBuf;
+  int nBuf;
+  Fts5Buffer doclist;
+  TokendataSetupCtx *pTokendata;
+};
+
+/*
+** fts5VisitEntries() callback used by fts5SetupPrefixIter()
+*/
+static void prefixIterSetupCb(
+  Fts5Index *p, 
+  void *pCtx, 
+  Fts5Iter *p1, 
+  const u8 *pNew,
+  int nNew
+){
+  PrefixSetupCtx *pSetup = (PrefixSetupCtx*)pCtx;
+  const int nMerge = pSetup->nMerge;
+
+  if( p1->base.nData>0 ){
+    if( p1->base.iRowid<=pSetup->iLastRowid && pSetup->doclist.n>0 ){
+      int i;
+      for(i=0; p->rc==SQLITE_OK && pSetup->doclist.n; i++){
+        int i1 = i*nMerge;
+        int iStore;
+        assert( i1+nMerge<=pSetup->nBuf );
+        for(iStore=i1; iStore<i1+nMerge; iStore++){
+          if( pSetup->aBuf[iStore].n==0 ){
+            fts5BufferSwap(&pSetup->doclist, &pSetup->aBuf[iStore]);
+            fts5BufferZero(&pSetup->doclist);
+            break;
+          }
+        }
+        if( iStore==i1+nMerge ){
+          pSetup->xMerge(p, &pSetup->doclist, nMerge, &pSetup->aBuf[i1]);
+          for(iStore=i1; iStore<i1+nMerge; iStore++){
+            fts5BufferZero(&pSetup->aBuf[iStore]);
+          }
+        }
+      }
+      pSetup->iLastRowid = 0;
+    }
+
+    pSetup->xAppend(
+        p, (u64)p1->base.iRowid-(u64)pSetup->iLastRowid, p1, &pSetup->doclist
+    );
+    pSetup->iLastRowid = p1->base.iRowid;
+  }
+
+  if( pSetup->pTokendata ){
+    prefixIterSetupTokendataCb(p, (void*)pSetup->pTokendata, p1, pNew, nNew);
+  }
+}
+
+static void fts5SetupPrefixIter(
+  Fts5Index *p,                   /* Index to read from */
+  int bDesc,                      /* True for "ORDER BY rowid DESC" */
+  int iIdx,                       /* Index to scan for data */
+  u8 *pToken,                     /* Buffer containing prefix to match */
+  int nToken,                     /* Size of buffer pToken in bytes */
+  Fts5Colset *pColset,            /* Restrict matches to these columns */
+  Fts5Iter **ppIter               /* OUT: New iterator */
+){
+  Fts5Structure *pStruct;
+  PrefixSetupCtx s;
+  TokendataSetupCtx s2;
+
+  memset(&s, 0, sizeof(s));
+  memset(&s2, 0, sizeof(s2));
+
+  s.nMerge = 1;
+  s.iLastRowid = 0;
+  s.nBuf = 32;
+  if( iIdx==0 
+   && p->pConfig->eDetail==FTS5_DETAIL_FULL 
+   && p->pConfig->bPrefixInsttoken 
+  ){
+    s.pTokendata = &s2;
+    s2.pT = (Fts5TokenDataIter*)fts5IdxMalloc(p, sizeof(*s2.pT));
+  }
+
+  if( p->pConfig->eDetail==FTS5_DETAIL_NONE ){
+    s.xMerge = fts5MergeRowidLists;
+    s.xAppend = fts5AppendRowid;
+  }else{
+    s.nMerge = FTS5_MERGE_NLIST-1;
+    s.nBuf = s.nMerge*8;   /* Sufficient to merge (16^8)==(2^32) lists */
+    s.xMerge = fts5MergePrefixLists;
+    s.xAppend = fts5AppendPoslist;
+  }
+
+  s.aBuf = (Fts5Buffer*)fts5IdxMalloc(p, sizeof(Fts5Buffer)*s.nBuf);
+  pStruct = fts5StructureRead(p);
+  assert( p->rc!=SQLITE_OK || (s.aBuf && pStruct) );
+
+  if( p->rc==SQLITE_OK ){
+    void *pCtx = (void*)&s;
+    int i;
+    Fts5Data *pData;
+
+    /* If iIdx is non-zero, then it is the number of a prefix-index for
+    ** prefixes 1 character longer than the prefix being queried for. That
+    ** index contains all the doclists required, except for the one
+    ** corresponding to the prefix itself. That one is extracted from the
+    ** main term index here.  */
+    if( iIdx!=0 ){
+      pToken[0] = FTS5_MAIN_PREFIX;
+      fts5VisitEntries(p, pColset, pToken, nToken, 0, prefixIterSetupCb, pCtx);
+    }
+
+    pToken[0] = FTS5_MAIN_PREFIX + iIdx;
+    fts5VisitEntries(p, pColset, pToken, nToken, 1, prefixIterSetupCb, pCtx);
+
+    assert( (s.nBuf%s.nMerge)==0 );
+    for(i=0; i<s.nBuf; i+=s.nMerge){
+      int iFree;
+      if( p->rc==SQLITE_OK ){
+        s.xMerge(p, &s.doclist, s.nMerge, &s.aBuf[i]);
+      }
+      for(iFree=i; iFree<i+s.nMerge; iFree++){
+        fts5BufferFree(&s.aBuf[iFree]);
+      }
+    }
+
+    pData = fts5IdxMalloc(p, sizeof(*pData)+s.doclist.n+FTS5_DATA_ZERO_PADDING);
+    assert( pData!=0 || p->rc!=SQLITE_OK );
+    if( pData ){
+      pData->p = (u8*)&pData[1];
+      pData->nn = pData->szLeaf = s.doclist.n;
+      if( s.doclist.n ) memcpy(pData->p, s.doclist.p, s.doclist.n);
+      fts5MultiIterNew2(p, pData, bDesc, ppIter);
+    }
+
+    assert( (*ppIter)!=0 || p->rc!=SQLITE_OK );
+    if( p->rc==SQLITE_OK && s.pTokendata ){
+      fts5TokendataIterSortMap(p, s2.pT);
+      (*ppIter)->pTokenDataIter = s2.pT;
+      s2.pT = 0;
+    }
+  }
+
+  fts5TokendataIterDelete(s2.pT);
+  fts5BufferFree(&s.doclist);
+  fts5StructureRelease(pStruct);
+  sqlite3_free(s.aBuf);
+}
+
+
+/*
+** Indicate that all subsequent calls to sqlite3Fts5IndexWrite() pertain
+** to the document with rowid iRowid.
+*/
+int sqlite3Fts5IndexBeginWrite(Fts5Index *p, int bDelete, i64 iRowid){
+  assert( p->rc==SQLITE_OK );
+
+  /* Allocate the hash table if it has not already been allocated */
+  if( p->pHash==0 ){
+    p->rc = sqlite3Fts5HashNew(p->pConfig, &p->pHash, &p->nPendingData);
+  }
+
+  /* Flush the hash table to disk if required */
+  if( iRowid<p->iWriteRowid 
+   || (iRowid==p->iWriteRowid && p->bDelete==0)
+   || (p->nPendingData > p->pConfig->nHashSize)
+  ){
+    fts5IndexFlush(p);
+  }
+
+  p->iWriteRowid = iRowid;
+  p->bDelete = bDelete;
+  if( bDelete==0 ){
+    p->nPendingRow++;
+  }
+  return fts5IndexReturn(p);
+}
+
+/*
+** Commit data to disk.
+*/
+int sqlite3Fts5IndexSync(Fts5Index *p){
+  assert( p->rc==SQLITE_OK );
+  fts5IndexFlush(p);
+  sqlite3Fts5IndexCloseReader(p);
+  return fts5IndexReturn(p);
+}
+
+/*
+** Discard any data stored in the in-memory hash tables. Do not write it
+** to the database. Additionally, assume that the contents of the %_data
+** table may have changed on disk. So any in-memory caches of %_data 
+** records must be invalidated.
+*/
+int sqlite3Fts5IndexRollback(Fts5Index *p){
+  sqlite3Fts5IndexCloseReader(p);
+  fts5IndexDiscardData(p);
+  fts5StructureInvalidate(p);
+  /* assert( p->rc==SQLITE_OK ); */
+  return SQLITE_OK;
+}
+
+/*
+** The %_data table is completely empty when this function is called. This
+** function populates it with the initial structure objects for each index,
+** and the initial version of the "averages" record (a zero-byte blob).
+*/
+int sqlite3Fts5IndexReinit(Fts5Index *p){
+  Fts5Structure s;
+  fts5StructureInvalidate(p);
+  fts5IndexDiscardData(p);
+  memset(&s, 0, sizeof(Fts5Structure));
+  if( p->pConfig->bContentlessDelete ){
+    s.nOriginCntr = 1;
+  }
+  fts5DataWrite(p, FTS5_AVERAGES_ROWID, (const u8*)"", 0);
+  fts5StructureWrite(p, &s);
+  return fts5IndexReturn(p);
+}
+
+/*
+** Open a new Fts5Index handle. If the bCreate argument is true, create
+** and initialize the underlying %_data table.
+**
+** If successful, set *pp to point to the new object and return SQLITE_OK.
+** Otherwise, set *pp to NULL and return an SQLite error code.
+*/
+int sqlite3Fts5IndexOpen(
+  Fts5Config *pConfig, 
+  int bCreate, 
+  Fts5Index **pp,
+  char **pzErr
+){
+  int rc = SQLITE_OK;
+  Fts5Index *p;                   /* New object */
+
+  *pp = p = (Fts5Index*)sqlite3Fts5MallocZero(&rc, sizeof(Fts5Index));
+  if( rc==SQLITE_OK ){
+    p->pConfig = pConfig;
+    p->nWorkUnit = FTS5_WORK_UNIT;
+    p->zDataTbl = sqlite3Fts5Mprintf(&rc, "%s_data", pConfig->zName);
+    if( p->zDataTbl && bCreate ){
+      rc = sqlite3Fts5CreateTable(
+          pConfig, "data", "id INTEGER PRIMARY KEY, block BLOB", 0, pzErr
+      );
+      if( rc==SQLITE_OK ){
+        rc = sqlite3Fts5CreateTable(pConfig, "idx", 
+            "segid, term, pgno, PRIMARY KEY(segid, term)", 
+            1, pzErr
+        );
+      }
+      if( rc==SQLITE_OK ){
+        rc = sqlite3Fts5IndexReinit(p);
+      }
+    }
+  }
+
+  assert( rc!=SQLITE_OK || p->rc==SQLITE_OK );
+  if( rc ){
+    sqlite3Fts5IndexClose(p);
+    *pp = 0;
+  }
+  return rc;
+}
+
+/*
+** Close a handle opened by an earlier call to sqlite3Fts5IndexOpen().
+*/
+int sqlite3Fts5IndexClose(Fts5Index *p){
+  int rc = SQLITE_OK;
+  if( p ){
+    assert( p->pReader==0 );
+    fts5StructureInvalidate(p);
+    sqlite3_finalize(p->pWriter);
+    sqlite3_finalize(p->pDeleter);
+    sqlite3_finalize(p->pIdxWriter);
+    sqlite3_finalize(p->pIdxDeleter);
+    sqlite3_finalize(p->pIdxSelect);
+    sqlite3_finalize(p->pIdxNextSelect);
+    sqlite3_finalize(p->pDataVersion);
+    sqlite3_finalize(p->pDeleteFromIdx);
+    sqlite3Fts5HashFree(p->pHash);
+    sqlite3_free(p->zDataTbl);
+    sqlite3_free(p);
+  }
+  return rc;
+}
+
+/*
+** Argument p points to a buffer containing utf-8 text that is n bytes in 
+** size. Return the number of bytes in the nChar character prefix of the
+** buffer, or 0 if there are less than nChar characters in total.
+*/
+int sqlite3Fts5IndexCharlenToBytelen(
+  const char *p, 
+  int nByte, 
+  int nChar
+){
+  int n = 0;
+  int i;
+  for(i=0; i<nChar; i++){
+    if( n>=nByte ) return 0;      /* Input contains fewer than nChar chars */
+    if( (unsigned char)p[n++]>=0xc0 ){
+      if( n>=nByte ) return 0;
+      while( (p[n] & 0xc0)==0x80 ){
+        n++;
+        if( n>=nByte ){
+          if( i+1==nChar ) break;
+          return 0;
+        }
+      }
+    }
+  }
+  return n;
+}
+
+/*
+** pIn is a UTF-8 encoded string, nIn bytes in size. Return the number of
+** unicode characters in the string.
+*/
+static int fts5IndexCharlen(const char *pIn, int nIn){
+  int nChar = 0;            
+  int i = 0;
+  while( i<nIn ){
+    if( (unsigned char)pIn[i++]>=0xc0 ){
+      while( i<nIn && (pIn[i] & 0xc0)==0x80 ) i++;
+    }
+    nChar++;
+  }
+  return nChar;
+}
+
+/*
+** Insert or remove data to or from the index. Each time a document is 
+** added to or removed from the index, this function is called one or more
+** times.
+**
+** For an insert, it must be called once for each token in the new document.
+** If the operation is a delete, it must be called (at least) once for each
+** unique token in the document with an iCol value less than zero. The iPos
+** argument is ignored for a delete.
+*/
+int sqlite3Fts5IndexWrite(
+  Fts5Index *p,                   /* Index to write to */
+  int iCol,                       /* Column token appears in (-ve -> delete) */
+  int iPos,                       /* Position of token within column */
+  const char *pToken, int nToken  /* Token to add or remove to or from index */
+){
+  int i;                          /* Used to iterate through indexes */
+  int rc = SQLITE_OK;             /* Return code */
+  Fts5Config *pConfig = p->pConfig;
+
+  assert( p->rc==SQLITE_OK );
+  assert( (iCol<0)==p->bDelete );
+
+  /* Add the entry to the main terms index. */
+  rc = sqlite3Fts5HashWrite(
+      p->pHash, p->iWriteRowid, iCol, iPos, FTS5_MAIN_PREFIX, pToken, nToken
+  );
+
+  for(i=0; i<pConfig->nPrefix && rc==SQLITE_OK; i++){
+    const int nChar = pConfig->aPrefix[i];
+    int nByte = sqlite3Fts5IndexCharlenToBytelen(pToken, nToken, nChar);
+    if( nByte ){
+      rc = sqlite3Fts5HashWrite(p->pHash, 
+          p->iWriteRowid, iCol, iPos, (char)(FTS5_MAIN_PREFIX+i+1), pToken,
+          nByte
+      );
+    }
+  }
+
+  return rc;
+}
+
+/*
+** pToken points to a buffer of size nToken bytes containing a search 
+** term, including the index number at the start, used on a tokendata=1
+** table. This function returns true if the term in buffer pBuf matches 
+** token pToken/nToken.
+*/
+static int fts5IsTokendataPrefix(
+  Fts5Buffer *pBuf,
+  const u8 *pToken,
+  int nToken
+){
+  return (
+      pBuf->n>=nToken 
+   && 0==memcmp(pBuf->p, pToken, nToken)
+   && (pBuf->n==nToken || pBuf->p[nToken]==0x00)
+  );
+}
+
+/*
+** Ensure the segment-iterator passed as the only argument points to EOF.
+*/
+static void fts5SegIterSetEOF(Fts5SegIter *pSeg){
+  fts5DataRelease(pSeg->pLeaf);
+  pSeg->pLeaf = 0;
+}
+
+/*
+** This function appends iterator pAppend to Fts5TokenDataIter pIn and 
+** returns the result.
+*/
+static Fts5TokenDataIter *fts5AppendTokendataIter(
+  Fts5Index *p,                   /* Index object (for error code) */
+  Fts5TokenDataIter *pIn,         /* Current Fts5TokenDataIter struct */
+  Fts5Iter *pAppend               /* Append this iterator */
+){
+  Fts5TokenDataIter *pRet = pIn;
+
+  if( p->rc==SQLITE_OK ){
+    if( pIn==0 || pIn->nIter==pIn->nIterAlloc ){
+      int nAlloc = pIn ? pIn->nIterAlloc*2 : 16;
+      int nByte = nAlloc * sizeof(Fts5Iter*) + sizeof(Fts5TokenDataIter);
+      Fts5TokenDataIter *pNew = (Fts5TokenDataIter*)sqlite3_realloc(pIn, nByte);
+
+      if( pNew==0 ){
+        p->rc = SQLITE_NOMEM;
+      }else{
+        if( pIn==0 ) memset(pNew, 0, nByte);
+        pRet = pNew;
+        pNew->nIterAlloc = nAlloc;
+      }
+    }
+  }
+  if( p->rc ){
+    sqlite3Fts5IterClose((Fts5IndexIter*)pAppend);
+  }else{
+    pRet->apIter[pRet->nIter++] = pAppend;
+  }
+  assert( pRet==0 || pRet->nIter<=pRet->nIterAlloc );
+
+  return pRet;
+}
+
+/*
+** The iterator passed as the only argument must be a tokendata=1 iterator
+** (pIter->pTokenDataIter!=0). This function sets the iterator output
+** variables (pIter->base.*) according to the contents of the current
+** row.
+*/
+static void fts5IterSetOutputsTokendata(Fts5Iter *pIter){
+  int ii;
+  int nHit = 0;
+  i64 iRowid = SMALLEST_INT64;
+  int iMin = 0;
+
+  Fts5TokenDataIter *pT = pIter->pTokenDataIter;
+
+  pIter->base.nData = 0;
+  pIter->base.pData = 0;
+
+  for(ii=0; ii<pT->nIter; ii++){
+    Fts5Iter *p = pT->apIter[ii];
+    if( p->base.bEof==0 ){
+      if( nHit==0 || p->base.iRowid<iRowid ){
+        iRowid = p->base.iRowid;
+        nHit = 1;
+        pIter->base.pData = p->base.pData;
+        pIter->base.nData = p->base.nData;
+        iMin = ii;
+      }else if( p->base.iRowid==iRowid ){
+        nHit++;
+      }
+    }
+  }
+
+  if( nHit==0 ){
+    pIter->base.bEof = 1;
+  }else{
+    int eDetail = pIter->pIndex->pConfig->eDetail;
+    pIter->base.bEof = 0;
+    pIter->base.iRowid = iRowid;
+
+    if( nHit==1 && eDetail==FTS5_DETAIL_FULL ){
+      fts5TokendataIterAppendMap(pIter->pIndex, pT, iMin, 0, iRowid, -1);
+    }else
+    if( nHit>1 && eDetail!=FTS5_DETAIL_NONE ){
+      int nReader = 0;
+      int nByte = 0;
+      i64 iPrev = 0;
+
+      /* Allocate array of iterators if they are not already allocated. */
+      if( pT->aPoslistReader==0 ){
+        pT->aPoslistReader = (Fts5PoslistReader*)sqlite3Fts5MallocZero(
+            &pIter->pIndex->rc,
+            pT->nIter * (sizeof(Fts5PoslistReader) + sizeof(int))
+        );
+        if( pT->aPoslistReader==0 ) return;
+        pT->aPoslistToIter = (int*)&pT->aPoslistReader[pT->nIter];
+      }
+
+      /* Populate an iterator for each poslist that will be merged */
+      for(ii=0; ii<pT->nIter; ii++){
+        Fts5Iter *p = pT->apIter[ii];
+        if( iRowid==p->base.iRowid ){
+          pT->aPoslistToIter[nReader] = ii;
+          sqlite3Fts5PoslistReaderInit(
+              p->base.pData, p->base.nData, &pT->aPoslistReader[nReader++]
+          );
+          nByte += p->base.nData;
+        }
+      }
+
+      /* Ensure the output buffer is large enough */
+      if( fts5BufferGrow(&pIter->pIndex->rc, &pIter->poslist, nByte+nHit*10) ){
+        return;
+      }
+
+      /* Ensure the token-mapping is large enough */
+      if( eDetail==FTS5_DETAIL_FULL && pT->nMapAlloc<(pT->nMap + nByte) ){
+        int nNew = (pT->nMapAlloc + nByte) * 2;
+        Fts5TokenDataMap *aNew = (Fts5TokenDataMap*)sqlite3_realloc(
+            pT->aMap, nNew*sizeof(Fts5TokenDataMap)
+        );
+        if( aNew==0 ){
+          pIter->pIndex->rc = SQLITE_NOMEM;
+          return;
+        }
+        pT->aMap = aNew;
+        pT->nMapAlloc = nNew;
+      }
+
+      pIter->poslist.n = 0;
+
+      while( 1 ){
+        i64 iMinPos = LARGEST_INT64;
+
+        /* Find smallest position */
+        iMin = 0;
+        for(ii=0; ii<nReader; ii++){
+          Fts5PoslistReader *pReader = &pT->aPoslistReader[ii];
+          if( pReader->bEof==0 ){
+            if( pReader->iPos<iMinPos ){
+              iMinPos = pReader->iPos;
+              iMin = ii;
+            }
+          }
+        }
+
+        /* If all readers were at EOF, break out of the loop. */
+        if( iMinPos==LARGEST_INT64 ) break;
+
+        sqlite3Fts5PoslistSafeAppend(&pIter->poslist, &iPrev, iMinPos);
+        sqlite3Fts5PoslistReaderNext(&pT->aPoslistReader[iMin]);
+
+        if( eDetail==FTS5_DETAIL_FULL ){
+          pT->aMap[pT->nMap].iPos = iMinPos;
+          pT->aMap[pT->nMap].iIter = pT->aPoslistToIter[iMin];
+          pT->aMap[pT->nMap].iRowid = iRowid;
+          pT->nMap++;
+        }
+      }
+
+      pIter->base.pData = pIter->poslist.p;
+      pIter->base.nData = pIter->poslist.n;
+    }
+  }
+}
+
+/*
+** The iterator passed as the only argument must be a tokendata=1 iterator
+** (pIter->pTokenDataIter!=0). This function advances the iterator. If
+** argument bFrom is false, then the iterator is advanced to the next
+** entry. Or, if bFrom is true, it is advanced to the first entry with
+** a rowid of iFrom or greater.
+*/
+static void fts5TokendataIterNext(Fts5Iter *pIter, int bFrom, i64 iFrom){
+  int ii;
+  Fts5TokenDataIter *pT = pIter->pTokenDataIter;
+  Fts5Index *pIndex = pIter->pIndex;
+
+  for(ii=0; ii<pT->nIter; ii++){
+    Fts5Iter *p = pT->apIter[ii];
+    if( p->base.bEof==0 
+     && (p->base.iRowid==pIter->base.iRowid || (bFrom && p->base.iRowid<iFrom))
+    ){
+      fts5MultiIterNext(pIndex, p, bFrom, iFrom);
+      while( bFrom && p->base.bEof==0 
+          && p->base.iRowid<iFrom 
+          && pIndex->rc==SQLITE_OK 
+      ){
+        fts5MultiIterNext(pIndex, p, 0, 0);
+      }
+    }
+  }
+
+  if( pIndex->rc==SQLITE_OK ){
+    fts5IterSetOutputsTokendata(pIter);
+  }
+}
+
+/*
+** If the segment-iterator passed as the first argument is at EOF, then
+** set pIter->term to a copy of buffer pTerm.
+*/
+static void fts5TokendataSetTermIfEof(Fts5Iter *pIter, Fts5Buffer *pTerm){
+  if( pIter && pIter->aSeg[0].pLeaf==0 ){
+    fts5BufferSet(&pIter->pIndex->rc, &pIter->aSeg[0].term, pTerm->n, pTerm->p);
+  }
+}
+
+/*
+** This function sets up an iterator to use for a non-prefix query on a 
+** tokendata=1 table. 
+*/
+static Fts5Iter *fts5SetupTokendataIter(
+  Fts5Index *p,                   /* FTS index to query */
+  const u8 *pToken,               /* Buffer containing query term */
+  int nToken,                     /* Size of buffer pToken in bytes */
+  Fts5Colset *pColset             /* Colset to filter on */
+){
+  Fts5Iter *pRet = 0;
+  Fts5TokenDataIter *pSet = 0;
+  Fts5Structure *pStruct = 0;
+  const int flags = FTS5INDEX_QUERY_SCANONETERM | FTS5INDEX_QUERY_SCAN;
+
+  Fts5Buffer bSeek = {0, 0, 0};
+  Fts5Buffer *pSmall = 0;             
+
+  fts5IndexFlush(p);
+  pStruct = fts5StructureRead(p);
+
+  while( p->rc==SQLITE_OK ){
+    Fts5Iter *pPrev = pSet ? pSet->apIter[pSet->nIter-1] : 0;
+    Fts5Iter *pNew = 0;
+    Fts5SegIter *pNewIter = 0;
+    Fts5SegIter *pPrevIter = 0;
+
+    int iLvl, iSeg, ii;
+
+    pNew = fts5MultiIterAlloc(p, pStruct->nSegment);
+    if( pSmall ){
+      fts5BufferSet(&p->rc, &bSeek, pSmall->n, pSmall->p);
+      fts5BufferAppendBlob(&p->rc, &bSeek, 1, (const u8*)"\0");
+    }else{
+      fts5BufferSet(&p->rc, &bSeek, nToken, pToken);
+    }
+    if( p->rc ){
+      sqlite3Fts5IterClose((Fts5IndexIter*)pNew);
+      break;
+    }
+
+    pNewIter = &pNew->aSeg[0];
+    pPrevIter = (pPrev ? &pPrev->aSeg[0] : 0);
+    for(iLvl=0; iLvl<pStruct->nLevel; iLvl++){
+      for(iSeg=pStruct->aLevel[iLvl].nSeg-1; iSeg>=0; iSeg--){
+        Fts5StructureSegment *pSeg = &pStruct->aLevel[iLvl].aSeg[iSeg];
+        int bDone = 0;
+
+        if( pPrevIter ){
+          if( fts5BufferCompare(pSmall, &pPrevIter->term) ){
+            memcpy(pNewIter, pPrevIter, sizeof(Fts5SegIter));
+            memset(pPrevIter, 0, sizeof(Fts5SegIter));
+            bDone = 1;
+          }else if( pPrevIter->iEndofDoclist>pPrevIter->pLeaf->szLeaf ){
+            fts5SegIterNextInit(p,(const char*)bSeek.p,bSeek.n-1,pSeg,pNewIter);
+            bDone = 1;
+          }
+        }
+
+        if( bDone==0 ){
+          fts5SegIterSeekInit(p, bSeek.p, bSeek.n, flags, pSeg, pNewIter);
+        }
+
+        if( pPrevIter ){
+          if( pPrevIter->pTombArray ){
+            pNewIter->pTombArray = pPrevIter->pTombArray;
+            pNewIter->pTombArray->nRef++;
+          }
+        }else{
+          fts5SegIterAllocTombstone(p, pNewIter);
+        }
+
+        pNewIter++;
+        if( pPrevIter ) pPrevIter++;
+        if( p->rc ) break;
+      }
+    }
+    fts5TokendataSetTermIfEof(pPrev, pSmall);
+
+    pNew->bSkipEmpty = 1;
+    pNew->pColset = pColset;
+    fts5IterSetOutputCb(&p->rc, pNew);
+
+    /* Loop through all segments in the new iterator. Find the smallest 
+    ** term that any segment-iterator points to. Iterator pNew will be
+    ** used for this term. Also, set any iterator that points to a term that
+    ** does not match pToken/nToken to point to EOF */
+    pSmall = 0;
+    for(ii=0; ii<pNew->nSeg; ii++){
+      Fts5SegIter *pII = &pNew->aSeg[ii];
+      if( 0==fts5IsTokendataPrefix(&pII->term, pToken, nToken) ){
+        fts5SegIterSetEOF(pII);
+      }
+      if( pII->pLeaf && (!pSmall || fts5BufferCompare(pSmall, &pII->term)>0) ){
+        pSmall = &pII->term;
+      }
+    }
+
+    /* If pSmall is still NULL at this point, then the new iterator does
+    ** not point to any terms that match the query. So delete it and break
+    ** out of the loop - all required iterators have been collected.  */
+    if( pSmall==0 ){
+      sqlite3Fts5IterClose((Fts5IndexIter*)pNew);
+      break;
+    }
+
+    /* Append this iterator to the set and continue. */
+    pSet = fts5AppendTokendataIter(p, pSet, pNew);
+  }
+
+  if( p->rc==SQLITE_OK && pSet ){
+    int ii;
+    for(ii=0; ii<pSet->nIter; ii++){
+      Fts5Iter *pIter = pSet->apIter[ii];
+      int iSeg;
+      for(iSeg=0; iSeg<pIter->nSeg; iSeg++){
+        pIter->aSeg[iSeg].flags |= FTS5_SEGITER_ONETERM;
+      }
+      fts5MultiIterFinishSetup(p, pIter);
+    }
+  }
+    
+  if( p->rc==SQLITE_OK ){
+    pRet = fts5MultiIterAlloc(p, 0);
+  }
+  if( pRet ){
+    pRet->nSeg = 0;
+    pRet->pTokenDataIter = pSet;
+    if( pSet ){
+      fts5IterSetOutputsTokendata(pRet);
+    }else{
+      pRet->base.bEof = 1;
+    }
+  }else{
+    fts5TokendataIterDelete(pSet);
+  }
+
+  fts5StructureRelease(pStruct);
+  fts5BufferFree(&bSeek);
+  return pRet;
+}
+
+/*
+** Open a new iterator to iterate though all rowid that match the 
+** specified token or token prefix.
+*/
+int sqlite3Fts5IndexQuery(
+  Fts5Index *p,                   /* FTS index to query */
+  const char *pToken, int nToken, /* Token (or prefix) to query for */
+  int flags,                      /* Mask of FTS5INDEX_QUERY_X flags */
+  Fts5Colset *pColset,            /* Match these columns only */
+  Fts5IndexIter **ppIter          /* OUT: New iterator object */
+){
+  Fts5Config *pConfig = p->pConfig;
+  Fts5Iter *pRet = 0;
+  Fts5Buffer buf = {0, 0, 0};
+
+  /* If the QUERY_SCAN flag is set, all other flags must be clear. */
+  assert( (flags & FTS5INDEX_QUERY_SCAN)==0 || flags==FTS5INDEX_QUERY_SCAN );
+
+  if( sqlite3Fts5BufferSize(&p->rc, &buf, nToken+1)==0 ){
+    int iIdx = 0;                 /* Index to search */
+    int iPrefixIdx = 0;           /* +1 prefix index */
+    int bTokendata = pConfig->bTokendata;
+    assert( buf.p!=0 );
+    if( nToken>0 ) memcpy(&buf.p[1], pToken, nToken);
+
+    /* The NOTOKENDATA flag is set when each token in a tokendata=1 table
+    ** should be treated individually, instead of merging all those with
+    ** a common prefix into a single entry. This is used, for example, by
+    ** queries performed as part of an integrity-check, or by the fts5vocab
+    ** module.  */
+    if( flags & (FTS5INDEX_QUERY_NOTOKENDATA|FTS5INDEX_QUERY_SCAN) ){
+      bTokendata = 0;
+    }
+
+    /* Figure out which index to search and set iIdx accordingly. If this
+    ** is a prefix query for which there is no prefix index, set iIdx to
+    ** greater than pConfig->nPrefix to indicate that the query will be
+    ** satisfied by scanning multiple terms in the main index.
+    **
+    ** If the QUERY_TEST_NOIDX flag was specified, then this must be a
+    ** prefix-query. Instead of using a prefix-index (if one exists), 
+    ** evaluate the prefix query using the main FTS index. This is used
+    ** for internal sanity checking by the integrity-check in debug 
+    ** mode only.  */
+#ifdef SQLITE_DEBUG
+    if( pConfig->bPrefixIndex==0 || (flags & FTS5INDEX_QUERY_TEST_NOIDX) ){
+      assert( flags & FTS5INDEX_QUERY_PREFIX );
+      iIdx = 1+pConfig->nPrefix;
+    }else
+#endif
+    if( flags & FTS5INDEX_QUERY_PREFIX ){
+      int nChar = fts5IndexCharlen(pToken, nToken);
+      for(iIdx=1; iIdx<=pConfig->nPrefix; iIdx++){
+        int nIdxChar = pConfig->aPrefix[iIdx-1];
+        if( nIdxChar==nChar ) break;
+        if( nIdxChar==nChar+1 ) iPrefixIdx = iIdx;
+      }
+    }
+
+    if( bTokendata && iIdx==0 ){
+      buf.p[0] = FTS5_MAIN_PREFIX;
+      pRet = fts5SetupTokendataIter(p, buf.p, nToken+1, pColset);
+    }else if( iIdx<=pConfig->nPrefix ){
+      /* Straight index lookup */
+      Fts5Structure *pStruct = fts5StructureRead(p);
+      buf.p[0] = (u8)(FTS5_MAIN_PREFIX + iIdx);
+      if( pStruct ){
+        fts5MultiIterNew(p, pStruct, flags | FTS5INDEX_QUERY_SKIPEMPTY, 
+            pColset, buf.p, nToken+1, -1, 0, &pRet
+        );
+        fts5StructureRelease(pStruct);
+      }
+    }else{
+      /* Scan multiple terms in the main index for a prefix query. */
+      int bDesc = (flags & FTS5INDEX_QUERY_DESC)!=0;
+      fts5SetupPrefixIter(p, bDesc, iPrefixIdx, buf.p, nToken+1, pColset,&pRet);
+      if( pRet==0 ){
+        assert( p->rc!=SQLITE_OK );
+      }else{
+        assert( pRet->pColset==0 );
+        fts5IterSetOutputCb(&p->rc, pRet);
+        if( p->rc==SQLITE_OK ){
+          Fts5SegIter *pSeg = &pRet->aSeg[pRet->aFirst[1].iFirst];
+          if( pSeg->pLeaf ) pRet->xSetOutputs(pRet, pSeg);
+        }
+      }
+    }
+
+    if( p->rc ){
+      sqlite3Fts5IterClose((Fts5IndexIter*)pRet);
+      pRet = 0;
+      sqlite3Fts5IndexCloseReader(p);
+    }
+
+    *ppIter = (Fts5IndexIter*)pRet;
+    sqlite3Fts5BufferFree(&buf);
+  }
+  return fts5IndexReturn(p);
+}
+
+/*
+** Return true if the iterator passed as the only argument is at EOF.
+*/
+/*
+** Move to the next matching rowid. 
+*/
+int sqlite3Fts5IterNext(Fts5IndexIter *pIndexIter){
+  Fts5Iter *pIter = (Fts5Iter*)pIndexIter;
+  assert( pIter->pIndex->rc==SQLITE_OK );
+  if( pIter->nSeg==0 ){
+    assert( pIter->pTokenDataIter );
+    fts5TokendataIterNext(pIter, 0, 0);
+  }else{
+    fts5MultiIterNext(pIter->pIndex, pIter, 0, 0);
+  }
+  return fts5IndexReturn(pIter->pIndex);
+}
+
+/*
+** Move to the next matching term/rowid. Used by the fts5vocab module.
+*/
+int sqlite3Fts5IterNextScan(Fts5IndexIter *pIndexIter){
+  Fts5Iter *pIter = (Fts5Iter*)pIndexIter;
+  Fts5Index *p = pIter->pIndex;
+
+  assert( pIter->pIndex->rc==SQLITE_OK );
+
+  fts5MultiIterNext(p, pIter, 0, 0);
+  if( p->rc==SQLITE_OK ){
+    Fts5SegIter *pSeg = &pIter->aSeg[ pIter->aFirst[1].iFirst ];
+    if( pSeg->pLeaf && pSeg->term.p[0]!=FTS5_MAIN_PREFIX ){
+      fts5DataRelease(pSeg->pLeaf);
+      pSeg->pLeaf = 0;
+      pIter->base.bEof = 1;
+    }
+  }
+
+  return fts5IndexReturn(pIter->pIndex);
+}
+
+/*
+** Move to the next matching rowid that occurs at or after iMatch. The
+** definition of "at or after" depends on whether this iterator iterates
+** in ascending or descending rowid order.
+*/
+int sqlite3Fts5IterNextFrom(Fts5IndexIter *pIndexIter, i64 iMatch){
+  Fts5Iter *pIter = (Fts5Iter*)pIndexIter;
+  if( pIter->nSeg==0 ){
+    assert( pIter->pTokenDataIter );
+    fts5TokendataIterNext(pIter, 1, iMatch);
+  }else{
+    fts5MultiIterNextFrom(pIter->pIndex, pIter, iMatch);
+  }
+  return fts5IndexReturn(pIter->pIndex);
+}
+
+/*
+** Return the current term.
+*/
+const char *sqlite3Fts5IterTerm(Fts5IndexIter *pIndexIter, int *pn){
+  int n;
+  const char *z = (const char*)fts5MultiIterTerm((Fts5Iter*)pIndexIter, &n);
+  assert_nc( z || n<=1 );
+  *pn = n-1;
+  return (z ? &z[1] : 0);
+}
+
+/*
+** pIter is a prefix query. This function populates pIter->pTokenDataIter
+** with an Fts5TokenDataIter object containing mappings for all rows
+** matched by the query.
+*/
+static int fts5SetupPrefixIterTokendata(
+  Fts5Iter *pIter,
+  const char *pToken,             /* Token prefix to search for */
+  int nToken                      /* Size of pToken in bytes */
+){
+  Fts5Index *p = pIter->pIndex;
+  Fts5Buffer token = {0, 0, 0};
+  TokendataSetupCtx ctx;
+
+  memset(&ctx, 0, sizeof(ctx));
+
+  fts5BufferGrow(&p->rc, &token, nToken+1);
+  assert( token.p!=0 || p->rc!=SQLITE_OK );
+  ctx.pT = (Fts5TokenDataIter*)sqlite3Fts5MallocZero(&p->rc, sizeof(*ctx.pT));
+
+  if( p->rc==SQLITE_OK ){
+
+    /* Fill in the token prefix to search for */
+    token.p[0] = FTS5_MAIN_PREFIX;
+    memcpy(&token.p[1], pToken, nToken);
+    token.n = nToken+1;
+
+    fts5VisitEntries(
+        p, 0, token.p, token.n, 1, prefixIterSetupTokendataCb, (void*)&ctx
+    );
+
+    fts5TokendataIterSortMap(p, ctx.pT);
+  }
+
+  if( p->rc==SQLITE_OK ){
+    pIter->pTokenDataIter = ctx.pT;
+  }else{
+    fts5TokendataIterDelete(ctx.pT);
+  }
+  fts5BufferFree(&token);
+
+  return fts5IndexReturn(p);
+}
+
+/*
+** This is used by xInstToken() to access the token at offset iOff, column
+** iCol of row iRowid. The token is returned via output variables *ppOut
+** and *pnOut. The iterator passed as the first argument must be a tokendata=1
+** iterator (pIter->pTokenDataIter!=0).
+**
+** pToken/nToken:
+*/
+int sqlite3Fts5IterToken(
+  Fts5IndexIter *pIndexIter, 
+  const char *pToken, int nToken,
+  i64 iRowid,
+  int iCol, 
+  int iOff, 
+  const char **ppOut, int *pnOut
+){
+  Fts5Iter *pIter = (Fts5Iter*)pIndexIter;
+  Fts5TokenDataIter *pT = pIter->pTokenDataIter;
+  i64 iPos = (((i64)iCol)<<32) + iOff;
+  Fts5TokenDataMap *aMap = 0;
+  int i1 = 0;
+  int i2 = 0;
+  int iTest = 0;
+
+  assert( pT || (pToken && pIter->nSeg>0) );
+  if( pT==0 ){
+    int rc = fts5SetupPrefixIterTokendata(pIter, pToken, nToken);
+    if( rc!=SQLITE_OK ) return rc;
+    pT = pIter->pTokenDataIter;
+  }
+
+  i2 = pT->nMap;
+  aMap = pT->aMap;
+
+  while( i2>i1 ){
+    iTest = (i1 + i2) / 2;
+
+    if( aMap[iTest].iRowid<iRowid ){
+      i1 = iTest+1;
+    }else if( aMap[iTest].iRowid>iRowid ){
+      i2 = iTest;
+    }else{
+      if( aMap[iTest].iPos<iPos ){
+        if( aMap[iTest].iPos<0 ){
+          break;
+        }
+        i1 = iTest+1;
+      }else if( aMap[iTest].iPos>iPos ){
+        i2 = iTest;
+      }else{
+        break;
+      }
+    }
+  }
+
+  if( i2>i1 ){
+    if( pIter->nSeg==0 ){
+      Fts5Iter *pMap = pT->apIter[aMap[iTest].iIter];
+      *ppOut = (const char*)pMap->aSeg[0].term.p+1;
+      *pnOut = pMap->aSeg[0].term.n-1;
+    }else{
+      Fts5TokenDataMap *p = &aMap[iTest];
+      *ppOut = (const char*)&pT->terms.p[p->iIter];
+      *pnOut = aMap[iTest].nByte;
+    }
+  }
+
+  return SQLITE_OK;
+}
+
+/*
+** Clear any existing entries from the token-map associated with the
+** iterator passed as the only argument. 
+*/
+void sqlite3Fts5IndexIterClearTokendata(Fts5IndexIter *pIndexIter){
+  Fts5Iter *pIter = (Fts5Iter*)pIndexIter;
+  if( pIter && pIter->pTokenDataIter 
+   && (pIter->nSeg==0 || pIter->pIndex->pConfig->eDetail!=FTS5_DETAIL_FULL)
+  ){
+    pIter->pTokenDataIter->nMap = 0;
+  }
+}
+
+/*
+** Set a token-mapping for the iterator passed as the first argument. This
+** is used in detail=column or detail=none mode when a token is requested
+** using the xInstToken() API. In this case the caller tokenizers the
+** current row and configures the token-mapping via multiple calls to this
+** function.
+*/
+int sqlite3Fts5IndexIterWriteTokendata(
+  Fts5IndexIter *pIndexIter, 
+  const char *pToken, int nToken, 
+  i64 iRowid, int iCol, int iOff
+){
+  Fts5Iter *pIter = (Fts5Iter*)pIndexIter;
+  Fts5TokenDataIter *pT = pIter->pTokenDataIter;
+  Fts5Index *p = pIter->pIndex;
+  i64 iPos = (((i64)iCol)<<32) + iOff;
+
+  assert( p->pConfig->eDetail!=FTS5_DETAIL_FULL );
+  assert( pIter->pTokenDataIter || pIter->nSeg>0 );
+  if( pIter->nSeg>0 ){
+    /* This is a prefix term iterator. */
+    if( pT==0 ){
+      pT = (Fts5TokenDataIter*)sqlite3Fts5MallocZero(&p->rc, sizeof(*pT));
+      pIter->pTokenDataIter = pT;
+    }
+    if( pT ){
+      fts5TokendataIterAppendMap(p, pT, pT->terms.n, nToken, iRowid, iPos);
+      fts5BufferAppendBlob(&p->rc, &pT->terms, nToken, (const u8*)pToken);
+    }
+  }else{
+    int ii;
+    for(ii=0; ii<pT->nIter; ii++){
+      Fts5Buffer *pTerm = &pT->apIter[ii]->aSeg[0].term;
+      if( nToken==pTerm->n-1 && memcmp(pToken, pTerm->p+1, nToken)==0 ) break;
+    }
+    if( ii<pT->nIter ){
+      fts5TokendataIterAppendMap(p, pT, ii, 0, iRowid, iPos);
+    }
+  }
+  return fts5IndexReturn(p);
+}
+
+/*
+** Close an iterator opened by an earlier call to sqlite3Fts5IndexQuery().
+*/
+void sqlite3Fts5IterClose(Fts5IndexIter *pIndexIter){
+  if( pIndexIter ){
+    Fts5Iter *pIter = (Fts5Iter*)pIndexIter;
+    Fts5Index *pIndex = pIter->pIndex;
+    fts5TokendataIterDelete(pIter->pTokenDataIter);
+    fts5MultiIterFree(pIter);
+    sqlite3Fts5IndexCloseReader(pIndex);
+  }
+}
+
+/*
+** Read and decode the "averages" record from the database. 
+**
+** Parameter anSize must point to an array of size nCol, where nCol is
+** the number of user defined columns in the FTS table.
+*/
+int sqlite3Fts5IndexGetAverages(Fts5Index *p, i64 *pnRow, i64 *anSize){
+  int nCol = p->pConfig->nCol;
+  Fts5Data *pData;
+
+  *pnRow = 0;
+  memset(anSize, 0, sizeof(i64) * nCol);
+  pData = fts5DataRead(p, FTS5_AVERAGES_ROWID);
+  if( p->rc==SQLITE_OK && pData->nn ){
+    int i = 0;
+    int iCol;
+    i += fts5GetVarint(&pData->p[i], (u64*)pnRow);
+    for(iCol=0; i<pData->nn && iCol<nCol; iCol++){
+      i += fts5GetVarint(&pData->p[i], (u64*)&anSize[iCol]);
+    }
+  }
+
+  fts5DataRelease(pData);
+  return fts5IndexReturn(p);
+}
+
+/*
+** Replace the current "averages" record with the contents of the buffer 
+** supplied as the second argument.
+*/
+int sqlite3Fts5IndexSetAverages(Fts5Index *p, const u8 *pData, int nData){
+  assert( p->rc==SQLITE_OK );
+  fts5DataWrite(p, FTS5_AVERAGES_ROWID, pData, nData);
+  return fts5IndexReturn(p);
+}
+
+/*
+** Return the total number of blocks this module has read from the %_data
+** table since it was created.
+*/
+int sqlite3Fts5IndexReads(Fts5Index *p){
+  return p->nRead;
+}
+
+/*
+** Set the 32-bit cookie value stored at the start of all structure 
+** records to the value passed as the second argument.
+**
+** Return SQLITE_OK if successful, or an SQLite error code if an error
+** occurs.
+*/
+int sqlite3Fts5IndexSetCookie(Fts5Index *p, int iNew){
+  int rc;                              /* Return code */
+  Fts5Config *pConfig = p->pConfig;    /* Configuration object */
+  u8 aCookie[4];                       /* Binary representation of iNew */
+  sqlite3_blob *pBlob = 0;
+
+  assert( p->rc==SQLITE_OK );
+  sqlite3Fts5Put32(aCookie, iNew);
+
+  rc = sqlite3_blob_open(pConfig->db, pConfig->zDb, p->zDataTbl, 
+      "block", FTS5_STRUCTURE_ROWID, 1, &pBlob
+  );
+  if( rc==SQLITE_OK ){
+    sqlite3_blob_write(pBlob, aCookie, 4, 0);
+    rc = sqlite3_blob_close(pBlob);
+  }
+
+  return rc;
+}
+
+int sqlite3Fts5IndexLoadConfig(Fts5Index *p){
+  Fts5Structure *pStruct;
+  pStruct = fts5StructureRead(p);
+  fts5StructureRelease(pStruct);
+  return fts5IndexReturn(p);
+}
+
+/*
+** Retrieve the origin value that will be used for the segment currently
+** being accumulated in the in-memory hash table when it is flushed to
+** disk. If successful, SQLITE_OK is returned and (*piOrigin) set to
+** the queried value. Or, if an error occurs, an error code is returned
+** and the final value of (*piOrigin) is undefined.
+*/
+int sqlite3Fts5IndexGetOrigin(Fts5Index *p, i64 *piOrigin){
+  Fts5Structure *pStruct;
+  pStruct = fts5StructureRead(p);
+  if( pStruct ){
+    *piOrigin = pStruct->nOriginCntr;
+    fts5StructureRelease(pStruct);
+  }
+  return fts5IndexReturn(p);
+}
+
+/*
+** Buffer pPg contains a page of a tombstone hash table - one of nPg pages
+** associated with the same segment. This function adds rowid iRowid to
+** the hash table. The caller is required to guarantee that there is at
+** least one free slot on the page.
+**
+** If parameter bForce is false and the hash table is deemed to be full
+** (more than half of the slots are occupied), then non-zero is returned
+** and iRowid not inserted. Or, if bForce is true or if the hash table page
+** is not full, iRowid is inserted and zero returned.
+*/
+static int fts5IndexTombstoneAddToPage(
+  Fts5Data *pPg, 
+  int bForce,
+  int nPg, 
+  u64 iRowid
+){
+  const int szKey = TOMBSTONE_KEYSIZE(pPg);
+  const int nSlot = TOMBSTONE_NSLOT(pPg);
+  const int nElem = fts5GetU32(&pPg->p[4]);
+  int iSlot = (iRowid / nPg) % nSlot;
+  int nCollide = nSlot;
+
+  if( szKey==4 && iRowid>0xFFFFFFFF ) return 2;
+  if( iRowid==0 ){
+    pPg->p[1] = 0x01;
+    return 0;
+  }
+
+  if( bForce==0 && nElem>=(nSlot/2) ){
+    return 1;
+  }
+
+  fts5PutU32(&pPg->p[4], nElem+1);
+  if( szKey==4 ){
+    u32 *aSlot = (u32*)&pPg->p[8];
+    while( aSlot[iSlot] ){
+      iSlot = (iSlot + 1) % nSlot;
+      if( nCollide--==0 ) return 0;
+    }
+    fts5PutU32((u8*)&aSlot[iSlot], (u32)iRowid);
+  }else{
+    u64 *aSlot = (u64*)&pPg->p[8];
+    while( aSlot[iSlot] ){
+      iSlot = (iSlot + 1) % nSlot;
+      if( nCollide--==0 ) return 0;
+    }
+    fts5PutU64((u8*)&aSlot[iSlot], iRowid);
+  }
+
+  return 0;
+}
+
+/*
+** This function attempts to build a new hash containing all the keys 
+** currently in the tombstone hash table for segment pSeg. The new
+** hash will be stored in the nOut buffers passed in array apOut[].
+** All pages of the new hash use key-size szKey (4 or 8).
+**
+** Return 0 if the hash is successfully rebuilt into the nOut pages. 
+** Or non-zero if it is not (because one page became overfull). In this 
+** case the caller should retry with a larger nOut parameter.
+**
+** Parameter pData1 is page iPg1 of the hash table being rebuilt.
+*/
+static int fts5IndexTombstoneRehash(
+  Fts5Index *p,
+  Fts5StructureSegment *pSeg,     /* Segment to rebuild hash of */
+  Fts5Data *pData1,               /* One page of current hash - or NULL */
+  int iPg1,                       /* Which page of the current hash is pData1 */
+  int szKey,                      /* 4 or 8, the keysize */
+  int nOut,                       /* Number of output pages */
+  Fts5Data **apOut                /* Array of output hash pages */
+){
+  int ii;
+  int res = 0;
+
+  /* Initialize the headers of all the output pages */
+  for(ii=0; ii<nOut; ii++){
+    apOut[ii]->p[0] = szKey;
+    fts5PutU32(&apOut[ii]->p[4], 0);
+  }
+
+  /* Loop through the current pages of the hash table. */ 
+  for(ii=0; res==0 && ii<pSeg->nPgTombstone; ii++){
+    Fts5Data *pData = 0;          /* Page ii of the current hash table */
+    Fts5Data *pFree = 0;          /* Free this at the end of the loop */
+
+    if( iPg1==ii ){
+      pData = pData1;
+    }else{
+      pFree = pData = fts5DataRead(p, FTS5_TOMBSTONE_ROWID(pSeg->iSegid, ii));
+    }
+
+    if( pData ){
+      int szKeyIn = TOMBSTONE_KEYSIZE(pData);
+      int nSlotIn = (pData->nn - 8) / szKeyIn;
+      int iIn;
+      for(iIn=0; iIn<nSlotIn; iIn++){
+        u64 iVal = 0;
+
+        /* Read the value from slot iIn of the input page into iVal. */
+        if( szKeyIn==4 ){
+          u32 *aSlot = (u32*)&pData->p[8];
+          if( aSlot[iIn] ) iVal = fts5GetU32((u8*)&aSlot[iIn]);
+        }else{
+          u64 *aSlot = (u64*)&pData->p[8];
+          if( aSlot[iIn] ) iVal = fts5GetU64((u8*)&aSlot[iIn]);
+        }
+
+        /* If iVal is not 0 at this point, insert it into the new hash table */
+        if( iVal ){
+          Fts5Data *pPg = apOut[(iVal % nOut)];
+          res = fts5IndexTombstoneAddToPage(pPg, 0, nOut, iVal);
+          if( res ) break;
+        }
+      }
+
+      /* If this is page 0 of the old hash, copy the rowid-0-flag from the
+      ** old hash to the new.  */
+      if( ii==0 ){
+        apOut[0]->p[1] = pData->p[1];
+      }
+    }
+    fts5DataRelease(pFree);
+  }
+
+  return res;
+}
+
+/*
+** This is called to rebuild the hash table belonging to segment pSeg.
+** If parameter pData1 is not NULL, then one page of the existing hash table
+** has already been loaded - pData1, which is page iPg1. The key-size for
+** the new hash table is szKey (4 or 8).
+**
+** If successful, the new hash table is not written to disk. Instead, 
+** output parameter (*pnOut) is set to the number of pages in the new
+** hash table, and (*papOut) to point to an array of buffers containing
+** the new page data.
+**
+** If an error occurs, an error code is left in the Fts5Index object and
+** both output parameters set to 0 before returning.
+*/
+static void fts5IndexTombstoneRebuild(
+  Fts5Index *p,
+  Fts5StructureSegment *pSeg,     /* Segment to rebuild hash of */
+  Fts5Data *pData1,               /* One page of current hash - or NULL */
+  int iPg1,                       /* Which page of the current hash is pData1 */
+  int szKey,                      /* 4 or 8, the keysize */
+  int *pnOut,                     /* OUT: Number of output pages */
+  Fts5Data ***papOut              /* OUT: Output hash pages */
+){
+  const int MINSLOT = 32;
+  int nSlotPerPage = MAX(MINSLOT, (p->pConfig->pgsz - 8) / szKey);
+  int nSlot = 0;                  /* Number of slots in each output page */
+  int nOut = 0;
+
+  /* Figure out how many output pages (nOut) and how many slots per 
+  ** page (nSlot).  There are three possibilities: 
+  **
+  **   1. The hash table does not yet exist. In this case the new hash
+  **      table will consist of a single page with MINSLOT slots.
+  **
+  **   2. The hash table exists but is currently a single page. In this
+  **      case an attempt is made to grow the page to accommodate the new
+  **      entry. The page is allowed to grow up to nSlotPerPage (see above)
+  **      slots.
+  **
+  **   3. The hash table already consists of more than one page, or of
+  **      a single page already so large that it cannot be grown. In this
+  **      case the new hash consists of (nPg*2+1) pages of nSlotPerPage
+  **      slots each, where nPg is the current number of pages in the 
+  **      hash table.
+  */
+  if( pSeg->nPgTombstone==0 ){
+    /* Case 1. */
+    nOut = 1;
+    nSlot = MINSLOT;
+  }else if( pSeg->nPgTombstone==1 ){
+    /* Case 2. */
+    int nElem = (int)fts5GetU32(&pData1->p[4]);
+    assert( pData1 && iPg1==0 );
+    nOut = 1;
+    nSlot = MAX(nElem*4, MINSLOT);
+    if( nSlot>nSlotPerPage ) nOut = 0; 
+  }
+  if( nOut==0 ){
+    /* Case 3. */
+    nOut = (pSeg->nPgTombstone * 2 + 1);
+    nSlot = nSlotPerPage;
+  }
+
+  /* Allocate the required array and output pages */
+  while( 1 ){
+    int res = 0;
+    int ii = 0;
+    int szPage = 0;
+    Fts5Data **apOut = 0;
+
+    /* Allocate space for the new hash table */
+    assert( nSlot>=MINSLOT );
+    apOut = (Fts5Data**)sqlite3Fts5MallocZero(&p->rc, sizeof(Fts5Data*) * nOut);
+    szPage = 8 + nSlot*szKey;
+    for(ii=0; ii<nOut; ii++){
+      Fts5Data *pNew = (Fts5Data*)sqlite3Fts5MallocZero(&p->rc, 
+          sizeof(Fts5Data)+szPage
+      );
+      if( pNew ){
+        pNew->nn = szPage;
+        pNew->p = (u8*)&pNew[1];
+        apOut[ii] = pNew;
+      }
+    }
+
+    /* Rebuild the hash table. */
+    if( p->rc==SQLITE_OK ){
+      res = fts5IndexTombstoneRehash(p, pSeg, pData1, iPg1, szKey, nOut, apOut);
+    }
+    if( res==0 ){
+      if( p->rc ){
+        fts5IndexFreeArray(apOut, nOut);
+        apOut = 0;
+        nOut = 0;
+      }
+      *pnOut = nOut;
+      *papOut = apOut;
+      break;
+    }
+    
+    /* If control flows to here, it was not possible to rebuild the hash
+    ** table. Free all buffers and then try again with more pages. */
+    assert( p->rc==SQLITE_OK );
+    fts5IndexFreeArray(apOut, nOut);
+    nSlot = nSlotPerPage;
+    nOut = nOut*2 + 1;
+  }
+}
+
+
+/*
+** Add a tombstone for rowid iRowid to segment pSeg.
+*/
+static void fts5IndexTombstoneAdd(
+  Fts5Index *p, 
+  Fts5StructureSegment *pSeg, 
+  u64 iRowid
+){
+  Fts5Data *pPg = 0;
+  int iPg = -1;
+  int szKey = 0;
+  int nHash = 0;
+  Fts5Data **apHash = 0;
+
+  p->nContentlessDelete++;
+
+  if( pSeg->nPgTombstone>0 ){
+    iPg = iRowid % pSeg->nPgTombstone;
+    pPg = fts5DataRead(p, FTS5_TOMBSTONE_ROWID(pSeg->iSegid,iPg));
+    if( pPg==0 ){
+      assert( p->rc!=SQLITE_OK );
+      return;
+    }
+
+    if( 0==fts5IndexTombstoneAddToPage(pPg, 0, pSeg->nPgTombstone, iRowid) ){
+      fts5DataWrite(p, FTS5_TOMBSTONE_ROWID(pSeg->iSegid,iPg), pPg->p, pPg->nn);
+      fts5DataRelease(pPg);
+      return;
+    }
+  }
+
+  /* Have to rebuild the hash table. First figure out the key-size (4 or 8). */
+  szKey = pPg ? TOMBSTONE_KEYSIZE(pPg) : 4;
+  if( iRowid>0xFFFFFFFF ) szKey = 8;
+
+  /* Rebuild the hash table */
+  fts5IndexTombstoneRebuild(p, pSeg, pPg, iPg, szKey, &nHash, &apHash);
+  assert( p->rc==SQLITE_OK || (nHash==0 && apHash==0) );
+
+  /* If all has succeeded, write the new rowid into one of the new hash
+  ** table pages, then write them all out to disk. */
+  if( nHash ){
+    int ii = 0;
+    fts5IndexTombstoneAddToPage(apHash[iRowid % nHash], 1, nHash, iRowid);
+    for(ii=0; ii<nHash; ii++){
+      i64 iTombstoneRowid = FTS5_TOMBSTONE_ROWID(pSeg->iSegid, ii);
+      fts5DataWrite(p, iTombstoneRowid, apHash[ii]->p, apHash[ii]->nn);
+    }
+    pSeg->nPgTombstone = nHash;
+    fts5StructureWrite(p, p->pStruct);
+  }
+
+  fts5DataRelease(pPg);
+  fts5IndexFreeArray(apHash, nHash);
+}
+
+/*
+** Add iRowid to the tombstone list of the segment or segments that contain
+** rows from origin iOrigin. Return SQLITE_OK if successful, or an SQLite
+** error code otherwise.
+*/
+int sqlite3Fts5IndexContentlessDelete(Fts5Index *p, i64 iOrigin, i64 iRowid){
+  Fts5Structure *pStruct;
+  pStruct = fts5StructureRead(p);
+  if( pStruct ){
+    int bFound = 0;               /* True after pSeg->nEntryTombstone incr. */
+    int iLvl;
+    for(iLvl=pStruct->nLevel-1; iLvl>=0; iLvl--){
+      int iSeg;
+      for(iSeg=pStruct->aLevel[iLvl].nSeg-1; iSeg>=0; iSeg--){
+        Fts5StructureSegment *pSeg = &pStruct->aLevel[iLvl].aSeg[iSeg];
+        if( pSeg->iOrigin1<=(u64)iOrigin && pSeg->iOrigin2>=(u64)iOrigin ){
+          if( bFound==0 ){
+            pSeg->nEntryTombstone++;
+            bFound = 1;
+          }
+          fts5IndexTombstoneAdd(p, pSeg, iRowid);
+        }
+      }
+    }
+    fts5StructureRelease(pStruct);
+  }
+  return fts5IndexReturn(p);
+}
+
+/*************************************************************************
+**************************************************************************
+** Below this point is the implementation of the integrity-check 
+** functionality.
+*/
+
+/*
+** Return a simple checksum value based on the arguments.
+*/
+u64 sqlite3Fts5IndexEntryCksum(
+  i64 iRowid, 
+  int iCol, 
+  int iPos, 
+  int iIdx,
+  const char *pTerm,
+  int nTerm
+){
+  int i;
+  u64 ret = iRowid;
+  ret += (ret<<3) + iCol;
+  ret += (ret<<3) + iPos;
+  if( iIdx>=0 ) ret += (ret<<3) + (FTS5_MAIN_PREFIX + iIdx);
+  for(i=0; i<nTerm; i++) ret += (ret<<3) + pTerm[i];
+  return ret;
+}
+
+#ifdef SQLITE_DEBUG
+/*
+** This function is purely an internal test. It does not contribute to 
+** FTS functionality, or even the integrity-check, in any way.
+**
+** Instead, it tests that the same set of pgno/rowid combinations are 
+** visited regardless of whether the doclist-index identified by parameters
+** iSegid/iLeaf is iterated in forwards or reverse order.
+*/
+static void fts5TestDlidxReverse(
+  Fts5Index *p, 
+  int iSegid,                     /* Segment id to load from */
+  int iLeaf                       /* Load doclist-index for this leaf */
+){
+  Fts5DlidxIter *pDlidx = 0;
+  u64 cksum1 = 13;
+  u64 cksum2 = 13;
+
+  for(pDlidx=fts5DlidxIterInit(p, 0, iSegid, iLeaf);
+      fts5DlidxIterEof(p, pDlidx)==0;
+      fts5DlidxIterNext(p, pDlidx)
+  ){
+    i64 iRowid = fts5DlidxIterRowid(pDlidx);
+    int pgno = fts5DlidxIterPgno(pDlidx);
+    assert( pgno>iLeaf );
+    cksum1 += iRowid + ((i64)pgno<<32);
+  }
+  fts5DlidxIterFree(pDlidx);
+  pDlidx = 0;
+
+  for(pDlidx=fts5DlidxIterInit(p, 1, iSegid, iLeaf);
+      fts5DlidxIterEof(p, pDlidx)==0;
+      fts5DlidxIterPrev(p, pDlidx)
+  ){
+    i64 iRowid = fts5DlidxIterRowid(pDlidx);
+    int pgno = fts5DlidxIterPgno(pDlidx);
+    assert( fts5DlidxIterPgno(pDlidx)>iLeaf );
+    cksum2 += iRowid + ((i64)pgno<<32);
+  }
+  fts5DlidxIterFree(pDlidx);
+  pDlidx = 0;
+
+  if( p->rc==SQLITE_OK && cksum1!=cksum2 ) p->rc = FTS5_CORRUPT;
+}
+
+static int fts5QueryCksum(
+  Fts5Index *p,                   /* Fts5 index object */
+  int iIdx,
+  const char *z,                  /* Index key to query for */
+  int n,                          /* Size of index key in bytes */
+  int flags,                      /* Flags for Fts5IndexQuery */
+  u64 *pCksum                     /* IN/OUT: Checksum value */
+){
+  int eDetail = p->pConfig->eDetail;
+  u64 cksum = *pCksum;
+  Fts5IndexIter *pIter = 0;
+  int rc = sqlite3Fts5IndexQuery(
+      p, z, n, (flags | FTS5INDEX_QUERY_NOTOKENDATA), 0, &pIter
+  );
+
+  while( rc==SQLITE_OK && ALWAYS(pIter!=0) && 0==sqlite3Fts5IterEof(pIter) ){
+    i64 rowid = pIter->iRowid;
+
+    if( eDetail==FTS5_DETAIL_NONE ){
+      cksum ^= sqlite3Fts5IndexEntryCksum(rowid, 0, 0, iIdx, z, n);
+    }else{
+      Fts5PoslistReader sReader;
+      for(sqlite3Fts5PoslistReaderInit(pIter->pData, pIter->nData, &sReader);
+          sReader.bEof==0;
+          sqlite3Fts5PoslistReaderNext(&sReader)
+      ){
+        int iCol = FTS5_POS2COLUMN(sReader.iPos);
+        int iOff = FTS5_POS2OFFSET(sReader.iPos);
+        cksum ^= sqlite3Fts5IndexEntryCksum(rowid, iCol, iOff, iIdx, z, n);
+      }
+    }
+    if( rc==SQLITE_OK ){
+      rc = sqlite3Fts5IterNext(pIter);
+    }
+  }
+  sqlite3Fts5IterClose(pIter);
+
+  *pCksum = cksum;
+  return rc;
+}
+
+/*
+** Check if buffer z[], size n bytes, contains as series of valid utf-8
+** encoded codepoints. If so, return 0. Otherwise, if the buffer does not
+** contain valid utf-8, return non-zero.
+*/
+static int fts5TestUtf8(const char *z, int n){
+  int i = 0;
+  assert_nc( n>0 );
+  while( i<n ){
+    if( (z[i] & 0x80)==0x00 ){
+      i++;
+    }else
+    if( (z[i] & 0xE0)==0xC0 ){
+      if( i+1>=n || (z[i+1] & 0xC0)!=0x80 ) return 1;
+      i += 2;
+    }else
+    if( (z[i] & 0xF0)==0xE0 ){
+      if( i+2>=n || (z[i+1] & 0xC0)!=0x80 || (z[i+2] & 0xC0)!=0x80 ) return 1;
+      i += 3;
+    }else
+    if( (z[i] & 0xF8)==0xF0 ){
+      if( i+3>=n || (z[i+1] & 0xC0)!=0x80 || (z[i+2] & 0xC0)!=0x80 ) return 1;
+      if( (z[i+2] & 0xC0)!=0x80 ) return 1;
+      i += 3;
+    }else{
+      return 1;
+    }
+  }
+
+  return 0;
+}
+
+/*
+** This function is also purely an internal test. It does not contribute to 
+** FTS functionality, or even the integrity-check, in any way.
+*/
+static void fts5TestTerm(
+  Fts5Index *p, 
+  Fts5Buffer *pPrev,              /* Previous term */
+  const char *z, int n,           /* Possibly new term to test */
+  u64 expected,
+  u64 *pCksum
+){
+  int rc = p->rc;
+  if( pPrev->n==0 ){
+    fts5BufferSet(&rc, pPrev, n, (const u8*)z);
+  }else
+  if( rc==SQLITE_OK && (pPrev->n!=n || memcmp(pPrev->p, z, n)) ){
+    u64 cksum3 = *pCksum;
+    const char *zTerm = (const char*)&pPrev->p[1];  /* term sans prefix-byte */
+    int nTerm = pPrev->n-1;            /* Size of zTerm in bytes */
+    int iIdx = (pPrev->p[0] - FTS5_MAIN_PREFIX);
+    int flags = (iIdx==0 ? 0 : FTS5INDEX_QUERY_PREFIX);
+    u64 ck1 = 0;
+    u64 ck2 = 0;
+
+    /* Check that the results returned for ASC and DESC queries are
+    ** the same. If not, call this corruption.  */
+    rc = fts5QueryCksum(p, iIdx, zTerm, nTerm, flags, &ck1);
+    if( rc==SQLITE_OK ){
+      int f = flags|FTS5INDEX_QUERY_DESC;
+      rc = fts5QueryCksum(p, iIdx, zTerm, nTerm, f, &ck2);
+    }
+    if( rc==SQLITE_OK && ck1!=ck2 ) rc = FTS5_CORRUPT;
+
+    /* If this is a prefix query, check that the results returned if the
+    ** the index is disabled are the same. In both ASC and DESC order. 
+    **
+    ** This check may only be performed if the hash table is empty. This
+    ** is because the hash table only supports a single scan query at
+    ** a time, and the multi-iter loop from which this function is called
+    ** is already performing such a scan. 
+    **
+    ** Also only do this if buffer zTerm contains nTerm bytes of valid
+    ** utf-8. Otherwise, the last part of the buffer contents might contain
+    ** a non-utf-8 sequence that happens to be a prefix of a valid utf-8
+    ** character stored in the main fts index, which will cause the
+    ** test to fail.  */
+    if( p->nPendingData==0 && 0==fts5TestUtf8(zTerm, nTerm) ){
+      if( iIdx>0 && rc==SQLITE_OK ){
+        int f = flags|FTS5INDEX_QUERY_TEST_NOIDX;
+        ck2 = 0;
+        rc = fts5QueryCksum(p, iIdx, zTerm, nTerm, f, &ck2);
+        if( rc==SQLITE_OK && ck1!=ck2 ) rc = FTS5_CORRUPT;
+      }
+      if( iIdx>0 && rc==SQLITE_OK ){
+        int f = flags|FTS5INDEX_QUERY_TEST_NOIDX|FTS5INDEX_QUERY_DESC;
+        ck2 = 0;
+        rc = fts5QueryCksum(p, iIdx, zTerm, nTerm, f, &ck2);
+        if( rc==SQLITE_OK && ck1!=ck2 ) rc = FTS5_CORRUPT;
+      }
+    }
+
+    cksum3 ^= ck1;
+    fts5BufferSet(&rc, pPrev, n, (const u8*)z);
+
+    if( rc==SQLITE_OK && cksum3!=expected ){
+      rc = FTS5_CORRUPT;
+    }
+    *pCksum = cksum3;
+  }
+  p->rc = rc;
+}
+ 
+#else
+# define fts5TestDlidxReverse(x,y,z)
+# define fts5TestTerm(u,v,w,x,y,z)
+#endif
+
+/*
+** Check that:
+**
+**   1) All leaves of pSeg between iFirst and iLast (inclusive) exist and
+**      contain zero terms.
+**   2) All leaves of pSeg between iNoRowid and iLast (inclusive) exist and
+**      contain zero rowids.
+*/
+static void fts5IndexIntegrityCheckEmpty(
+  Fts5Index *p,
+  Fts5StructureSegment *pSeg,     /* Segment to check internal consistency */
+  int iFirst,
+  int iNoRowid,
+  int iLast
+){
+  int i;
+
+  /* Now check that the iter.nEmpty leaves following the current leaf
+  ** (a) exist and (b) contain no terms. */
+  for(i=iFirst; p->rc==SQLITE_OK && i<=iLast; i++){
+    Fts5Data *pLeaf = fts5DataRead(p, FTS5_SEGMENT_ROWID(pSeg->iSegid, i));
+    if( pLeaf ){
+      if( !fts5LeafIsTermless(pLeaf) ) p->rc = FTS5_CORRUPT;
+      if( i>=iNoRowid && 0!=fts5LeafFirstRowidOff(pLeaf) ) p->rc = FTS5_CORRUPT;
+    }
+    fts5DataRelease(pLeaf);
+  }
+}
+
+static void fts5IntegrityCheckPgidx(Fts5Index *p, Fts5Data *pLeaf){
+  i64 iTermOff = 0;
+  int ii;
+
+  Fts5Buffer buf1 = {0,0,0};
+  Fts5Buffer buf2 = {0,0,0};
+
+  ii = pLeaf->szLeaf;
+  while( ii<pLeaf->nn && p->rc==SQLITE_OK ){
+    int res;
+    i64 iOff;
+    int nIncr;
+
+    ii += fts5GetVarint32(&pLeaf->p[ii], nIncr);
+    iTermOff += nIncr;
+    iOff = iTermOff;
+
+    if( iOff>=pLeaf->szLeaf ){
+      p->rc = FTS5_CORRUPT;
+    }else if( iTermOff==nIncr ){
+      int nByte;
+      iOff += fts5GetVarint32(&pLeaf->p[iOff], nByte);
+      if( (iOff+nByte)>pLeaf->szLeaf ){
+        p->rc = FTS5_CORRUPT;
+      }else{
+        fts5BufferSet(&p->rc, &buf1, nByte, &pLeaf->p[iOff]);
+      }
+    }else{
+      int nKeep, nByte;
+      iOff += fts5GetVarint32(&pLeaf->p[iOff], nKeep);
+      iOff += fts5GetVarint32(&pLeaf->p[iOff], nByte);
+      if( nKeep>buf1.n || (iOff+nByte)>pLeaf->szLeaf ){
+        p->rc = FTS5_CORRUPT;
+      }else{
+        buf1.n = nKeep;
+        fts5BufferAppendBlob(&p->rc, &buf1, nByte, &pLeaf->p[iOff]);
+      }
+
+      if( p->rc==SQLITE_OK ){
+        res = fts5BufferCompare(&buf1, &buf2);
+        if( res<=0 ) p->rc = FTS5_CORRUPT;
+      }
+    }
+    fts5BufferSet(&p->rc, &buf2, buf1.n, buf1.p);
+  }
+
+  fts5BufferFree(&buf1);
+  fts5BufferFree(&buf2);
+}
+
+static void fts5IndexIntegrityCheckSegment(
+  Fts5Index *p,                   /* FTS5 backend object */
+  Fts5StructureSegment *pSeg      /* Segment to check internal consistency */
+){
+  Fts5Config *pConfig = p->pConfig;
+  int bSecureDelete = (pConfig->iVersion==FTS5_CURRENT_VERSION_SECUREDELETE);
+  sqlite3_stmt *pStmt = 0;
+  int rc2;
+  int iIdxPrevLeaf = pSeg->pgnoFirst-1;
+  int iDlidxPrevLeaf = pSeg->pgnoLast;
+
+  if( pSeg->pgnoFirst==0 ) return;
+
+  fts5IndexPrepareStmt(p, &pStmt, sqlite3_mprintf(
+      "SELECT segid, term, (pgno>>1), (pgno&1) FROM %Q.'%q_idx' WHERE segid=%d "
+      "ORDER BY 1, 2",
+      pConfig->zDb, pConfig->zName, pSeg->iSegid
+  ));
+
+  /* Iterate through the b-tree hierarchy.  */
+  while( p->rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pStmt) ){
+    i64 iRow;                     /* Rowid for this leaf */
+    Fts5Data *pLeaf;              /* Data for this leaf */
+
+    const char *zIdxTerm = (const char*)sqlite3_column_blob(pStmt, 1);
+    int nIdxTerm = sqlite3_column_bytes(pStmt, 1);
+    int iIdxLeaf = sqlite3_column_int(pStmt, 2);
+    int bIdxDlidx = sqlite3_column_int(pStmt, 3);
+
+    /* If the leaf in question has already been trimmed from the segment, 
+    ** ignore this b-tree entry. Otherwise, load it into memory. */
+    if( iIdxLeaf<pSeg->pgnoFirst ) continue;
+    iRow = FTS5_SEGMENT_ROWID(pSeg->iSegid, iIdxLeaf);
+    pLeaf = fts5LeafRead(p, iRow);
+    if( pLeaf==0 ) break;
+
+    /* Check that the leaf contains at least one term, and that it is equal
+    ** to or larger than the split-key in zIdxTerm.  Also check that if there
+    ** is also a rowid pointer within the leaf page header, it points to a
+    ** location before the term.  */
+    if( pLeaf->nn<=pLeaf->szLeaf ){
+
+      if( nIdxTerm==0 
+       && pConfig->iVersion==FTS5_CURRENT_VERSION_SECUREDELETE
+       && pLeaf->nn==pLeaf->szLeaf
+       && pLeaf->nn==4
+      ){
+        /* special case - the very first page in a segment keeps its %_idx
+        ** entry even if all the terms are removed from it by secure-delete 
+        ** operations. */
+      }else{
+        p->rc = FTS5_CORRUPT;
+      }
+
+    }else{
+      int iOff;                   /* Offset of first term on leaf */
+      int iRowidOff;              /* Offset of first rowid on leaf */
+      int nTerm;                  /* Size of term on leaf in bytes */
+      int res;                    /* Comparison of term and split-key */
+
+      iOff = fts5LeafFirstTermOff(pLeaf);
+      iRowidOff = fts5LeafFirstRowidOff(pLeaf);
+      if( iRowidOff>=iOff || iOff>=pLeaf->szLeaf ){
+        p->rc = FTS5_CORRUPT;
+      }else{
+        iOff += fts5GetVarint32(&pLeaf->p[iOff], nTerm);
+        res = fts5Memcmp(&pLeaf->p[iOff], zIdxTerm, MIN(nTerm, nIdxTerm));
+        if( res==0 ) res = nTerm - nIdxTerm;
+        if( res<0 ) p->rc = FTS5_CORRUPT;
+      }
+
+      fts5IntegrityCheckPgidx(p, pLeaf);
+    }
+    fts5DataRelease(pLeaf);
+    if( p->rc ) break;
+
+    /* Now check that the iter.nEmpty leaves following the current leaf
+    ** (a) exist and (b) contain no terms. */
+    fts5IndexIntegrityCheckEmpty(
+        p, pSeg, iIdxPrevLeaf+1, iDlidxPrevLeaf+1, iIdxLeaf-1
+    );
+    if( p->rc ) break;
+
+    /* If there is a doclist-index, check that it looks right. */
+    if( bIdxDlidx ){
+      Fts5DlidxIter *pDlidx = 0;  /* For iterating through doclist index */
+      int iPrevLeaf = iIdxLeaf;
+      int iSegid = pSeg->iSegid;
+      int iPg = 0;
+      i64 iKey;
+
+      for(pDlidx=fts5DlidxIterInit(p, 0, iSegid, iIdxLeaf);
+          fts5DlidxIterEof(p, pDlidx)==0;
+          fts5DlidxIterNext(p, pDlidx)
+      ){
+
+        /* Check any rowid-less pages that occur before the current leaf. */
+        for(iPg=iPrevLeaf+1; iPg<fts5DlidxIterPgno(pDlidx); iPg++){
+          iKey = FTS5_SEGMENT_ROWID(iSegid, iPg);
+          pLeaf = fts5DataRead(p, iKey);
+          if( pLeaf ){
+            if( fts5LeafFirstRowidOff(pLeaf)!=0 ) p->rc = FTS5_CORRUPT;
+            fts5DataRelease(pLeaf);
+          }
+        }
+        iPrevLeaf = fts5DlidxIterPgno(pDlidx);
+
+        /* Check that the leaf page indicated by the iterator really does
+        ** contain the rowid suggested by the same. */
+        iKey = FTS5_SEGMENT_ROWID(iSegid, iPrevLeaf);
+        pLeaf = fts5DataRead(p, iKey);
+        if( pLeaf ){
+          i64 iRowid;
+          int iRowidOff = fts5LeafFirstRowidOff(pLeaf);
+          ASSERT_SZLEAF_OK(pLeaf);
+          if( iRowidOff>=pLeaf->szLeaf ){
+            p->rc = FTS5_CORRUPT;
+          }else if( bSecureDelete==0 || iRowidOff>0 ){
+            i64 iDlRowid = fts5DlidxIterRowid(pDlidx);
+            fts5GetVarint(&pLeaf->p[iRowidOff], (u64*)&iRowid);
+            if( iRowid<iDlRowid || (bSecureDelete==0 && iRowid!=iDlRowid) ){
+              p->rc = FTS5_CORRUPT;
+            }
+          }
+          fts5DataRelease(pLeaf);
+        }
+      }
+
+      iDlidxPrevLeaf = iPg;
+      fts5DlidxIterFree(pDlidx);
+      fts5TestDlidxReverse(p, iSegid, iIdxLeaf);
+    }else{
+      iDlidxPrevLeaf = pSeg->pgnoLast;
+      /* TODO: Check there is no doclist index */
+    }
+
+    iIdxPrevLeaf = iIdxLeaf;
+  }
+
+  rc2 = sqlite3_finalize(pStmt);
+  if( p->rc==SQLITE_OK ) p->rc = rc2;
+
+  /* Page iter.iLeaf must now be the rightmost leaf-page in the segment */
+#if 0
+  if( p->rc==SQLITE_OK && iter.iLeaf!=pSeg->pgnoLast ){
+    p->rc = FTS5_CORRUPT;
+  }
+#endif
+}
+
+
+/*
+** Run internal checks to ensure that the FTS index (a) is internally 
+** consistent and (b) contains entries for which the XOR of the checksums
+** as calculated by sqlite3Fts5IndexEntryCksum() is cksum.
+**
+** Return SQLITE_CORRUPT if any of the internal checks fail, or if the
+** checksum does not match. Return SQLITE_OK if all checks pass without
+** error, or some other SQLite error code if another error (e.g. OOM)
+** occurs.
+*/
+int sqlite3Fts5IndexIntegrityCheck(Fts5Index *p, u64 cksum, int bUseCksum){
+  int eDetail = p->pConfig->eDetail;
+  u64 cksum2 = 0;                 /* Checksum based on contents of indexes */
+  Fts5Buffer poslist = {0,0,0};   /* Buffer used to hold a poslist */
+  Fts5Iter *pIter;                /* Used to iterate through entire index */
+  Fts5Structure *pStruct;         /* Index structure */
+  int iLvl, iSeg;
+
+#ifdef SQLITE_DEBUG
+  /* Used by extra internal tests only run if NDEBUG is not defined */
+  u64 cksum3 = 0;                 /* Checksum based on contents of indexes */
+  Fts5Buffer term = {0,0,0};      /* Buffer used to hold most recent term */
+#endif
+  const int flags = FTS5INDEX_QUERY_NOOUTPUT;
+  
+  /* Load the FTS index structure */
+  pStruct = fts5StructureRead(p);
+  if( pStruct==0 ){
+    assert( p->rc!=SQLITE_OK );
+    return fts5IndexReturn(p);
+  }
+
+  /* Check that the internal nodes of each segment match the leaves */
+  for(iLvl=0; iLvl<pStruct->nLevel; iLvl++){
+    for(iSeg=0; iSeg<pStruct->aLevel[iLvl].nSeg; iSeg++){
+      Fts5StructureSegment *pSeg = &pStruct->aLevel[iLvl].aSeg[iSeg];
+      fts5IndexIntegrityCheckSegment(p, pSeg);
+    }
+  }
+
+  /* The cksum argument passed to this function is a checksum calculated
+  ** based on all expected entries in the FTS index (including prefix index
+  ** entries). This block checks that a checksum calculated based on the
+  ** actual contents of FTS index is identical.
+  **
+  ** Two versions of the same checksum are calculated. The first (stack
+  ** variable cksum2) based on entries extracted from the full-text index
+  ** while doing a linear scan of each individual index in turn. 
+  **
+  ** As each term visited by the linear scans, a separate query for the
+  ** same term is performed. cksum3 is calculated based on the entries
+  ** extracted by these queries.
+  */
+  for(fts5MultiIterNew(p, pStruct, flags, 0, 0, 0, -1, 0, &pIter);
+      fts5MultiIterEof(p, pIter)==0;
+      fts5MultiIterNext(p, pIter, 0, 0)
+  ){
+    int n;                      /* Size of term in bytes */
+    i64 iPos = 0;               /* Position read from poslist */
+    int iOff = 0;               /* Offset within poslist */
+    i64 iRowid = fts5MultiIterRowid(pIter);
+    char *z = (char*)fts5MultiIterTerm(pIter, &n);
+
+    /* If this is a new term, query for it. Update cksum3 with the results. */
+    fts5TestTerm(p, &term, z, n, cksum2, &cksum3);
+    if( p->rc ) break;
+
+    if( eDetail==FTS5_DETAIL_NONE ){
+      if( 0==fts5MultiIterIsEmpty(p, pIter) ){
+        cksum2 ^= sqlite3Fts5IndexEntryCksum(iRowid, 0, 0, -1, z, n);
+      }
+    }else{
+      poslist.n = 0;
+      fts5SegiterPoslist(p, &pIter->aSeg[pIter->aFirst[1].iFirst], 0, &poslist);
+      fts5BufferAppendBlob(&p->rc, &poslist, 4, (const u8*)"\0\0\0\0");
+      while( 0==sqlite3Fts5PoslistNext64(poslist.p, poslist.n, &iOff, &iPos) ){
+        int iCol = FTS5_POS2COLUMN(iPos);
+        int iTokOff = FTS5_POS2OFFSET(iPos);
+        cksum2 ^= sqlite3Fts5IndexEntryCksum(iRowid, iCol, iTokOff, -1, z, n);
+      }
+    }
+  }
+  fts5TestTerm(p, &term, 0, 0, cksum2, &cksum3);
+
+  fts5MultiIterFree(pIter);
+  if( p->rc==SQLITE_OK && bUseCksum && cksum!=cksum2 ) p->rc = FTS5_CORRUPT;
+
+  fts5StructureRelease(pStruct);
+#ifdef SQLITE_DEBUG
+  fts5BufferFree(&term);
+#endif
+  fts5BufferFree(&poslist);
+  return fts5IndexReturn(p);
+}
+
+/*************************************************************************
+**************************************************************************
+** Below this point is the implementation of the fts5_decode() scalar
+** function only.
+*/
+
+#if defined(SQLITE_TEST) || defined(SQLITE_FTS5_DEBUG)
+/*
+** Decode a segment-data rowid from the %_data table. This function is
+** the opposite of macro FTS5_SEGMENT_ROWID().
+*/
+static void fts5DecodeRowid(
+  i64 iRowid,                     /* Rowid from %_data table */
+  int *pbTombstone,               /* OUT: Tombstone hash flag */
+  int *piSegid,                   /* OUT: Segment id */
+  int *pbDlidx,                   /* OUT: Dlidx flag */
+  int *piHeight,                  /* OUT: Height */
+  int *piPgno                     /* OUT: Page number */
+){
+  *piPgno = (int)(iRowid & (((i64)1 << FTS5_DATA_PAGE_B) - 1));
+  iRowid >>= FTS5_DATA_PAGE_B;
+
+  *piHeight = (int)(iRowid & (((i64)1 << FTS5_DATA_HEIGHT_B) - 1));
+  iRowid >>= FTS5_DATA_HEIGHT_B;
+
+  *pbDlidx = (int)(iRowid & 0x0001);
+  iRowid >>= FTS5_DATA_DLI_B;
+
+  *piSegid = (int)(iRowid & (((i64)1 << FTS5_DATA_ID_B) - 1));
+  iRowid >>= FTS5_DATA_ID_B;
+
+  *pbTombstone = (int)(iRowid & 0x0001);
+}
+#endif /* SQLITE_TEST || SQLITE_FTS5_DEBUG */
+
+#if defined(SQLITE_TEST) || defined(SQLITE_FTS5_DEBUG)
+static void fts5DebugRowid(int *pRc, Fts5Buffer *pBuf, i64 iKey){
+  int iSegid, iHeight, iPgno, bDlidx, bTomb;     /* Rowid compenents */
+  fts5DecodeRowid(iKey, &bTomb, &iSegid, &bDlidx, &iHeight, &iPgno);
+
+  if( iSegid==0 ){
+    if( iKey==FTS5_AVERAGES_ROWID ){
+      sqlite3Fts5BufferAppendPrintf(pRc, pBuf, "{averages} ");
+    }else{
+      sqlite3Fts5BufferAppendPrintf(pRc, pBuf, "{structure}");
+    }
+  }
+  else{
+    sqlite3Fts5BufferAppendPrintf(pRc, pBuf, "{%s%ssegid=%d h=%d pgno=%d}",
+        bDlidx ? "dlidx " : "", 
+        bTomb ? "tombstone " : "", 
+        iSegid, iHeight, iPgno
+    );
+  }
+}
+#endif /* SQLITE_TEST || SQLITE_FTS5_DEBUG */
+
+#if defined(SQLITE_TEST) || defined(SQLITE_FTS5_DEBUG)
+static void fts5DebugStructure(
+  int *pRc,                       /* IN/OUT: error code */
+  Fts5Buffer *pBuf,
+  Fts5Structure *p
+){
+  int iLvl, iSeg;                 /* Iterate through levels, segments */
+
+  for(iLvl=0; iLvl<p->nLevel; iLvl++){
+    Fts5StructureLevel *pLvl = &p->aLevel[iLvl];
+    sqlite3Fts5BufferAppendPrintf(pRc, pBuf, 
+        " {lvl=%d nMerge=%d nSeg=%d", iLvl, pLvl->nMerge, pLvl->nSeg
+    );
+    for(iSeg=0; iSeg<pLvl->nSeg; iSeg++){
+      Fts5StructureSegment *pSeg = &pLvl->aSeg[iSeg];
+      sqlite3Fts5BufferAppendPrintf(pRc, pBuf, " {id=%d leaves=%d..%d",
+          pSeg->iSegid, pSeg->pgnoFirst, pSeg->pgnoLast
+      );
+      if( pSeg->iOrigin1>0 ){
+        sqlite3Fts5BufferAppendPrintf(pRc, pBuf, " origin=%lld..%lld",
+            pSeg->iOrigin1, pSeg->iOrigin2
+        );
+      }
+      sqlite3Fts5BufferAppendPrintf(pRc, pBuf, "}");
+    }
+    sqlite3Fts5BufferAppendPrintf(pRc, pBuf, "}");
+  }
+}
+#endif /* SQLITE_TEST || SQLITE_FTS5_DEBUG */
+
+#if defined(SQLITE_TEST) || defined(SQLITE_FTS5_DEBUG)
+/*
+** This is part of the fts5_decode() debugging aid.
+**
+** Arguments pBlob/nBlob contain a serialized Fts5Structure object. This
+** function appends a human-readable representation of the same object
+** to the buffer passed as the second argument. 
+*/
+static void fts5DecodeStructure(
+  int *pRc,                       /* IN/OUT: error code */
+  Fts5Buffer *pBuf,
+  const u8 *pBlob, int nBlob
+){
+  int rc;                         /* Return code */
+  Fts5Structure *p = 0;           /* Decoded structure object */
+
+  rc = fts5StructureDecode(pBlob, nBlob, 0, &p);
+  if( rc!=SQLITE_OK ){
+    *pRc = rc;
+    return;
+  }
+
+  fts5DebugStructure(pRc, pBuf, p);
+  fts5StructureRelease(p);
+}
+#endif /* SQLITE_TEST || SQLITE_FTS5_DEBUG */
+
+#if defined(SQLITE_TEST) || defined(SQLITE_FTS5_DEBUG)
+/*
+** This is part of the fts5_decode() debugging aid.
+**
+** Arguments pBlob/nBlob contain an "averages" record. This function 
+** appends a human-readable representation of record to the buffer passed 
+** as the second argument. 
+*/
+static void fts5DecodeAverages(
+  int *pRc,                       /* IN/OUT: error code */
+  Fts5Buffer *pBuf,
+  const u8 *pBlob, int nBlob
+){
+  int i = 0;
+  const char *zSpace = "";
+
+  while( i<nBlob ){
+    u64 iVal;
+    i += sqlite3Fts5GetVarint(&pBlob[i], &iVal);
+    sqlite3Fts5BufferAppendPrintf(pRc, pBuf, "%s%d", zSpace, (int)iVal);
+    zSpace = " ";
+  }
+}
+#endif /* SQLITE_TEST || SQLITE_FTS5_DEBUG */
+
+#if defined(SQLITE_TEST) || defined(SQLITE_FTS5_DEBUG)
+/*
+** Buffer (a/n) is assumed to contain a list of serialized varints. Read
+** each varint and append its string representation to buffer pBuf. Return
+** after either the input buffer is exhausted or a 0 value is read.
+**
+** The return value is the number of bytes read from the input buffer.
+*/
+static int fts5DecodePoslist(int *pRc, Fts5Buffer *pBuf, const u8 *a, int n){
+  int iOff = 0;
+  while( iOff<n ){
+    int iVal;
+    iOff += fts5GetVarint32(&a[iOff], iVal);
+    sqlite3Fts5BufferAppendPrintf(pRc, pBuf, " %d", iVal);
+  }
+  return iOff;
+}
+#endif /* SQLITE_TEST || SQLITE_FTS5_DEBUG */
+
+#if defined(SQLITE_TEST) || defined(SQLITE_FTS5_DEBUG)
+/*
+** The start of buffer (a/n) contains the start of a doclist. The doclist
+** may or may not finish within the buffer. This function appends a text
+** representation of the part of the doclist that is present to buffer
+** pBuf. 
+**
+** The return value is the number of bytes read from the input buffer.
+*/
+static int fts5DecodeDoclist(int *pRc, Fts5Buffer *pBuf, const u8 *a, int n){
+  i64 iDocid = 0;
+  int iOff = 0;
+
+  if( n>0 ){
+    iOff = sqlite3Fts5GetVarint(a, (u64*)&iDocid);
+    sqlite3Fts5BufferAppendPrintf(pRc, pBuf, " id=%lld", iDocid);
+  }
+  while( iOff<n ){
+    int nPos;
+    int bDel;
+    iOff += fts5GetPoslistSize(&a[iOff], &nPos, &bDel);
+    sqlite3Fts5BufferAppendPrintf(pRc, pBuf, " nPos=%d%s", nPos, bDel?"*":"");
+    iOff += fts5DecodePoslist(pRc, pBuf, &a[iOff], MIN(n-iOff, nPos));
+    if( iOff<n ){
+      i64 iDelta;
+      iOff += sqlite3Fts5GetVarint(&a[iOff], (u64*)&iDelta);
+      iDocid += iDelta;
+      sqlite3Fts5BufferAppendPrintf(pRc, pBuf, " id=%lld", iDocid);
+    }
+  }
+
+  return iOff;
+}
+#endif /* SQLITE_TEST || SQLITE_FTS5_DEBUG */
+
+#if defined(SQLITE_TEST) || defined(SQLITE_FTS5_DEBUG)
+/*
+** This function is part of the fts5_decode() debugging function. It is 
+** only ever used with detail=none tables.
+**
+** Buffer (pData/nData) contains a doclist in the format used by detail=none
+** tables. This function appends a human-readable version of that list to
+** buffer pBuf.
+**
+** If *pRc is other than SQLITE_OK when this function is called, it is a
+** no-op. If an OOM or other error occurs within this function, *pRc is
+** set to an SQLite error code before returning. The final state of buffer
+** pBuf is undefined in this case.
+*/
+static void fts5DecodeRowidList(
+  int *pRc,                       /* IN/OUT: Error code */
+  Fts5Buffer *pBuf,               /* Buffer to append text to */
+  const u8 *pData, int nData      /* Data to decode list-of-rowids from */
+){
+  int i = 0;
+  i64 iRowid = 0;
+
+  while( i<nData ){
+    const char *zApp = "";
+    u64 iVal;
+    i += sqlite3Fts5GetVarint(&pData[i], &iVal);
+    iRowid += iVal;
+
+    if( i<nData && pData[i]==0x00 ){
+      i++;
+      if( i<nData && pData[i]==0x00 ){
+        i++;
+        zApp = "+";
+      }else{
+        zApp = "*";
+      }
+    }
+
+    sqlite3Fts5BufferAppendPrintf(pRc, pBuf, " %lld%s", iRowid, zApp);
+  }
+}
+#endif /* SQLITE_TEST || SQLITE_FTS5_DEBUG */
+
+#if defined(SQLITE_TEST) || defined(SQLITE_FTS5_DEBUG)
+static void fts5BufferAppendTerm(int *pRc, Fts5Buffer *pBuf, Fts5Buffer *pTerm){
+  int ii;
+  fts5BufferGrow(pRc, pBuf, pTerm->n*2 + 1);
+  if( *pRc==SQLITE_OK ){
+    for(ii=0; ii<pTerm->n; ii++){
+      if( pTerm->p[ii]==0x00 ){
+        pBuf->p[pBuf->n++] = '\\';
+        pBuf->p[pBuf->n++] = '0';
+      }else{
+        pBuf->p[pBuf->n++] = pTerm->p[ii];
+      }
+    }
+    pBuf->p[pBuf->n] = 0x00;
+  }
+}
+#endif /* SQLITE_TEST || SQLITE_FTS5_DEBUG */
+
+#if defined(SQLITE_TEST) || defined(SQLITE_FTS5_DEBUG)
+/*
+** The implementation of user-defined scalar function fts5_decode().
+*/
+static void fts5DecodeFunction(
+  sqlite3_context *pCtx,          /* Function call context */
+  int nArg,                       /* Number of args (always 2) */
+  sqlite3_value **apVal           /* Function arguments */
+){
+  i64 iRowid;                     /* Rowid for record being decoded */
+  int iSegid,iHeight,iPgno,bDlidx;/* Rowid components */
+  int bTomb;
+  const u8 *aBlob; int n;         /* Record to decode */
+  u8 *a = 0;
+  Fts5Buffer s;                   /* Build up text to return here */
+  int rc = SQLITE_OK;             /* Return code */
+  sqlite3_int64 nSpace = 0;
+  int eDetailNone = (sqlite3_user_data(pCtx)!=0);
+
+  assert( nArg==2 );
+  UNUSED_PARAM(nArg);
+  memset(&s, 0, sizeof(Fts5Buffer));
+  iRowid = sqlite3_value_int64(apVal[0]);
+
+  /* Make a copy of the second argument (a blob) in aBlob[]. The aBlob[]
+  ** copy is followed by FTS5_DATA_ZERO_PADDING 0x00 bytes, which prevents
+  ** buffer overreads even if the record is corrupt.  */
+  n = sqlite3_value_bytes(apVal[1]);
+  aBlob = sqlite3_value_blob(apVal[1]);
+  nSpace = n + FTS5_DATA_ZERO_PADDING;
+  a = (u8*)sqlite3Fts5MallocZero(&rc, nSpace);
+  if( a==0 ) goto decode_out;
+  if( n>0 ) memcpy(a, aBlob, n);
+
+  fts5DecodeRowid(iRowid, &bTomb, &iSegid, &bDlidx, &iHeight, &iPgno);
+
+  fts5DebugRowid(&rc, &s, iRowid);
+  if( bDlidx ){
+    Fts5Data dlidx;
+    Fts5DlidxLvl lvl;
+
+    dlidx.p = a;
+    dlidx.nn = n;
+
+    memset(&lvl, 0, sizeof(Fts5DlidxLvl));
+    lvl.pData = &dlidx;
+    lvl.iLeafPgno = iPgno;
+
+    for(fts5DlidxLvlNext(&lvl); lvl.bEof==0; fts5DlidxLvlNext(&lvl)){
+      sqlite3Fts5BufferAppendPrintf(&rc, &s, 
+          " %d(%lld)", lvl.iLeafPgno, lvl.iRowid
+      );
+    }
+  }else if( bTomb ){
+    u32 nElem  = fts5GetU32(&a[4]);
+    int szKey = (aBlob[0]==4 || aBlob[0]==8) ? aBlob[0] : 8;
+    int nSlot = (n - 8) / szKey;
+    int ii;
+    sqlite3Fts5BufferAppendPrintf(&rc, &s, " nElem=%d", (int)nElem);
+    if( aBlob[1] ){
+      sqlite3Fts5BufferAppendPrintf(&rc, &s, " 0");
+    }
+    for(ii=0; ii<nSlot; ii++){
+      u64 iVal = 0;
+      if( szKey==4 ){
+        u32 *aSlot = (u32*)&aBlob[8];
+        if( aSlot[ii] ) iVal = fts5GetU32((u8*)&aSlot[ii]);
+      }else{
+        u64 *aSlot = (u64*)&aBlob[8];
+        if( aSlot[ii] ) iVal = fts5GetU64((u8*)&aSlot[ii]);
+      }
+      if( iVal!=0 ){
+        sqlite3Fts5BufferAppendPrintf(&rc, &s, " %lld", (i64)iVal);
+      }
+    }
+  }else if( iSegid==0 ){
+    if( iRowid==FTS5_AVERAGES_ROWID ){
+      fts5DecodeAverages(&rc, &s, a, n);
+    }else{
+      fts5DecodeStructure(&rc, &s, a, n);
+    }
+  }else if( eDetailNone ){
+    Fts5Buffer term;              /* Current term read from page */
+    int szLeaf;
+    int iPgidxOff = szLeaf = fts5GetU16(&a[2]);
+    int iTermOff;
+    int nKeep = 0;
+    int iOff;
+
+    memset(&term, 0, sizeof(Fts5Buffer));
+
+    /* Decode any entries that occur before the first term. */
+    if( szLeaf<n ){
+      iPgidxOff += fts5GetVarint32(&a[iPgidxOff], iTermOff);
+    }else{
+      iTermOff = szLeaf;
+    }
+    fts5DecodeRowidList(&rc, &s, &a[4], iTermOff-4);
+
+    iOff = iTermOff;
+    while( iOff<szLeaf && rc==SQLITE_OK ){
+      int nAppend;
+
+      /* Read the term data for the next term*/
+      iOff += fts5GetVarint32(&a[iOff], nAppend);
+      term.n = nKeep;
+      fts5BufferAppendBlob(&rc, &term, nAppend, &a[iOff]);
+      sqlite3Fts5BufferAppendPrintf(&rc, &s, " term=");
+      fts5BufferAppendTerm(&rc, &s, &term);
+      iOff += nAppend;
+
+      /* Figure out where the doclist for this term ends */
+      if( iPgidxOff<n ){
+        int nIncr;
+        iPgidxOff += fts5GetVarint32(&a[iPgidxOff], nIncr);
+        iTermOff += nIncr;
+      }else{
+        iTermOff = szLeaf;
+      }
+      if( iTermOff>szLeaf ){
+        rc = FTS5_CORRUPT;
+      }else{
+        fts5DecodeRowidList(&rc, &s, &a[iOff], iTermOff-iOff);
+      }
+      iOff = iTermOff;
+      if( iOff<szLeaf ){
+        iOff += fts5GetVarint32(&a[iOff], nKeep);
+      }
+    }
+
+    fts5BufferFree(&term);
+  }else{
+    Fts5Buffer term;              /* Current term read from page */
+    int szLeaf;                   /* Offset of pgidx in a[] */
+    int iPgidxOff;
+    int iPgidxPrev = 0;           /* Previous value read from pgidx */
+    int iTermOff = 0;
+    int iRowidOff = 0;
+    int iOff;
+    int nDoclist;
+
+    memset(&term, 0, sizeof(Fts5Buffer));
+
+    if( n<4 ){
+      sqlite3Fts5BufferSet(&rc, &s, 7, (const u8*)"corrupt");
+      goto decode_out;
+    }else{
+      iRowidOff = fts5GetU16(&a[0]);
+      iPgidxOff = szLeaf = fts5GetU16(&a[2]);
+      if( iPgidxOff<n ){
+        fts5GetVarint32(&a[iPgidxOff], iTermOff);
+      }else if( iPgidxOff>n ){
+        rc = FTS5_CORRUPT;
+        goto decode_out;
+      }
+    }
+
+    /* Decode the position list tail at the start of the page */
+    if( iRowidOff!=0 ){
+      iOff = iRowidOff;
+    }else if( iTermOff!=0 ){
+      iOff = iTermOff;
+    }else{
+      iOff = szLeaf;
+    }
+    if( iOff>n ){
+      rc = FTS5_CORRUPT;
+      goto decode_out;
+    }
+    fts5DecodePoslist(&rc, &s, &a[4], iOff-4);
+
+    /* Decode any more doclist data that appears on the page before the
+    ** first term. */
+    nDoclist = (iTermOff ? iTermOff : szLeaf) - iOff;
+    if( nDoclist+iOff>n ){
+      rc = FTS5_CORRUPT;
+      goto decode_out;
+    }
+    fts5DecodeDoclist(&rc, &s, &a[iOff], nDoclist);
+
+    while( iPgidxOff<n && rc==SQLITE_OK ){
+      int bFirst = (iPgidxOff==szLeaf);     /* True for first term on page */
+      int nByte;                            /* Bytes of data */
+      int iEnd;
+      
+      iPgidxOff += fts5GetVarint32(&a[iPgidxOff], nByte);
+      iPgidxPrev += nByte;
+      iOff = iPgidxPrev;
+
+      if( iPgidxOff<n ){
+        fts5GetVarint32(&a[iPgidxOff], nByte);
+        iEnd = iPgidxPrev + nByte;
+      }else{
+        iEnd = szLeaf;
+      }
+      if( iEnd>szLeaf ){
+        rc = FTS5_CORRUPT;
+        break;
+      }
+
+      if( bFirst==0 ){
+        iOff += fts5GetVarint32(&a[iOff], nByte);
+        if( nByte>term.n ){
+          rc = FTS5_CORRUPT;
+          break;
+        }
+        term.n = nByte;
+      }
+      iOff += fts5GetVarint32(&a[iOff], nByte);
+      if( iOff+nByte>n ){
+        rc = FTS5_CORRUPT;
+        break;
+      }
+      fts5BufferAppendBlob(&rc, &term, nByte, &a[iOff]);
+      iOff += nByte;
+
+      sqlite3Fts5BufferAppendPrintf(&rc, &s, " term=");
+      fts5BufferAppendTerm(&rc, &s, &term);
+      iOff += fts5DecodeDoclist(&rc, &s, &a[iOff], iEnd-iOff);
+    }
+
+    fts5BufferFree(&term);
+  }
+  
+ decode_out:
+  sqlite3_free(a);
+  if( rc==SQLITE_OK ){
+    sqlite3_result_text(pCtx, (const char*)s.p, s.n, SQLITE_TRANSIENT);
+  }else{
+    sqlite3_result_error_code(pCtx, rc);
+  }
+  fts5BufferFree(&s);
+}
+#endif /* SQLITE_TEST || SQLITE_FTS5_DEBUG */
+
+#if defined(SQLITE_TEST) || defined(SQLITE_FTS5_DEBUG) 
+/*
+** The implementation of user-defined scalar function fts5_rowid().
+*/
+static void fts5RowidFunction(
+  sqlite3_context *pCtx,          /* Function call context */
+  int nArg,                       /* Number of args (always 2) */
+  sqlite3_value **apVal           /* Function arguments */
+){
+  const char *zArg;
+  if( nArg==0 ){
+    sqlite3_result_error(pCtx, "should be: fts5_rowid(subject, ....)", -1);
+  }else{
+    zArg = (const char*)sqlite3_value_text(apVal[0]);
+    if( 0==sqlite3_stricmp(zArg, "segment") ){
+      i64 iRowid;
+      int segid, pgno;
+      if( nArg!=3 ){
+        sqlite3_result_error(pCtx, 
+            "should be: fts5_rowid('segment', segid, pgno))", -1
+        );
+      }else{
+        segid = sqlite3_value_int(apVal[1]);
+        pgno = sqlite3_value_int(apVal[2]);
+        iRowid = FTS5_SEGMENT_ROWID(segid, pgno);
+        sqlite3_result_int64(pCtx, iRowid);
+      }
+    }else{
+      sqlite3_result_error(pCtx, 
+        "first arg to fts5_rowid() must be 'segment'" , -1
+      );
+    }
+  }
+}
+#endif /* SQLITE_TEST || SQLITE_FTS5_DEBUG */
+
+#if defined(SQLITE_TEST) || defined(SQLITE_FTS5_DEBUG)
+
+typedef struct Fts5StructVtab Fts5StructVtab;
+struct Fts5StructVtab {
+  sqlite3_vtab base;
+};
+
+typedef struct Fts5StructVcsr Fts5StructVcsr;
+struct Fts5StructVcsr {
+  sqlite3_vtab_cursor base;
+  Fts5Structure *pStruct;
+  int iLevel;
+  int iSeg;
+  int iRowid;
+};
+
+/*
+** Create a new fts5_structure() table-valued function.
+*/
+static int fts5structConnectMethod(
+  sqlite3 *db,
+  void *pAux,
+  int argc, const char *const*argv,
+  sqlite3_vtab **ppVtab,
+  char **pzErr
+){
+  Fts5StructVtab *pNew = 0;
+  int rc = SQLITE_OK;
+
+  rc = sqlite3_declare_vtab(db, 
+      "CREATE TABLE xyz("
+          "level, segment, merge, segid, leaf1, leaf2, loc1, loc2, "
+          "npgtombstone, nentrytombstone, nentry, struct HIDDEN);"
+  );
+  if( rc==SQLITE_OK ){
+    pNew = sqlite3Fts5MallocZero(&rc, sizeof(*pNew));
+  }
+
+  *ppVtab = (sqlite3_vtab*)pNew;
+  return rc;
+}
+
+/*
+** We must have a single struct=? constraint that will be passed through
+** into the xFilter method.  If there is no valid struct=? constraint,
+** then return an SQLITE_CONSTRAINT error.
+*/
+static int fts5structBestIndexMethod(
+  sqlite3_vtab *tab,
+  sqlite3_index_info *pIdxInfo
+){
+  int i;
+  int rc = SQLITE_CONSTRAINT;
+  struct sqlite3_index_constraint *p;
+  pIdxInfo->estimatedCost = (double)100;
+  pIdxInfo->estimatedRows = 100;
+  pIdxInfo->idxNum = 0;
+  for(i=0, p=pIdxInfo->aConstraint; i<pIdxInfo->nConstraint; i++, p++){
+    if( p->usable==0 ) continue;
+    if( p->op==SQLITE_INDEX_CONSTRAINT_EQ && p->iColumn==11 ){
+      rc = SQLITE_OK;
+      pIdxInfo->aConstraintUsage[i].omit = 1;
+      pIdxInfo->aConstraintUsage[i].argvIndex = 1;
+      break;
+    }
+  }
+  return rc;
+}
+
+/*
+** This method is the destructor for bytecodevtab objects.
+*/
+static int fts5structDisconnectMethod(sqlite3_vtab *pVtab){
+  Fts5StructVtab *p = (Fts5StructVtab*)pVtab;
+  sqlite3_free(p);
+  return SQLITE_OK;
+}
+
+/*
+** Constructor for a new bytecodevtab_cursor object.
+*/
+static int fts5structOpenMethod(sqlite3_vtab *p, sqlite3_vtab_cursor **ppCsr){
+  int rc = SQLITE_OK;
+  Fts5StructVcsr *pNew = 0;
+
+  pNew = sqlite3Fts5MallocZero(&rc, sizeof(*pNew));
+  *ppCsr = (sqlite3_vtab_cursor*)pNew;
+
+  return SQLITE_OK;
+}
+
+/*
+** Destructor for a bytecodevtab_cursor.
+*/
+static int fts5structCloseMethod(sqlite3_vtab_cursor *cur){
+  Fts5StructVcsr *pCsr = (Fts5StructVcsr*)cur;
+  fts5StructureRelease(pCsr->pStruct);
+  sqlite3_free(pCsr);
+  return SQLITE_OK;
+}
+
+
+/*
+** Advance a bytecodevtab_cursor to its next row of output.
+*/
+static int fts5structNextMethod(sqlite3_vtab_cursor *cur){
+  Fts5StructVcsr *pCsr = (Fts5StructVcsr*)cur;
+  Fts5Structure *p = pCsr->pStruct;
+
+  assert( pCsr->pStruct );
+  pCsr->iSeg++;
+  pCsr->iRowid++;
+  while( pCsr->iLevel<p->nLevel && pCsr->iSeg>=p->aLevel[pCsr->iLevel].nSeg ){
+    pCsr->iLevel++;
+    pCsr->iSeg = 0;
+  }
+  if( pCsr->iLevel>=p->nLevel ){
+    fts5StructureRelease(pCsr->pStruct);
+    pCsr->pStruct = 0;
+  }
+  return SQLITE_OK;
+}
+
+/*
+** Return TRUE if the cursor has been moved off of the last
+** row of output.
+*/
+static int fts5structEofMethod(sqlite3_vtab_cursor *cur){
+  Fts5StructVcsr *pCsr = (Fts5StructVcsr*)cur;
+  return pCsr->pStruct==0;
+}
+
+static int fts5structRowidMethod(
+  sqlite3_vtab_cursor *cur, 
+  sqlite_int64 *piRowid
+){
+  Fts5StructVcsr *pCsr = (Fts5StructVcsr*)cur;
+  *piRowid = pCsr->iRowid;
+  return SQLITE_OK;
+}
+
+/*
+** Return values of columns for the row at which the bytecodevtab_cursor
+** is currently pointing.
+*/
+static int fts5structColumnMethod(
+  sqlite3_vtab_cursor *cur,   /* The cursor */
+  sqlite3_context *ctx,       /* First argument to sqlite3_result_...() */
+  int i                       /* Which column to return */
+){
+  Fts5StructVcsr *pCsr = (Fts5StructVcsr*)cur;
+  Fts5Structure *p = pCsr->pStruct;
+  Fts5StructureSegment *pSeg = &p->aLevel[pCsr->iLevel].aSeg[pCsr->iSeg];
+
+  switch( i ){
+    case 0: /* level */
+      sqlite3_result_int(ctx, pCsr->iLevel);
+      break;
+    case 1: /* segment */
+      sqlite3_result_int(ctx, pCsr->iSeg);
+      break;
+    case 2: /* merge */
+      sqlite3_result_int(ctx, pCsr->iSeg < p->aLevel[pCsr->iLevel].nMerge);
+      break;
+    case 3: /* segid */
+      sqlite3_result_int(ctx, pSeg->iSegid);
+      break;
+    case 4: /* leaf1 */
+      sqlite3_result_int(ctx, pSeg->pgnoFirst);
+      break;
+    case 5: /* leaf2 */
+      sqlite3_result_int(ctx, pSeg->pgnoLast);
+      break;
+    case 6: /* origin1 */
+      sqlite3_result_int64(ctx, pSeg->iOrigin1);
+      break;
+    case 7: /* origin2 */
+      sqlite3_result_int64(ctx, pSeg->iOrigin2);
+      break;
+    case 8: /* npgtombstone */
+      sqlite3_result_int(ctx, pSeg->nPgTombstone);
+      break;
+    case 9: /* nentrytombstone */
+      sqlite3_result_int64(ctx, pSeg->nEntryTombstone);
+      break;
+    case 10: /* nentry */
+      sqlite3_result_int64(ctx, pSeg->nEntry);
+      break;
+  }
+  return SQLITE_OK;
+}
+
+/*
+** Initialize a cursor.
+**
+**    idxNum==0     means show all subprograms
+**    idxNum==1     means show only the main bytecode and omit subprograms.
+*/
+static int fts5structFilterMethod(
+  sqlite3_vtab_cursor *pVtabCursor, 
+  int idxNum, const char *idxStr,
+  int argc, sqlite3_value **argv
+){
+  Fts5StructVcsr *pCsr = (Fts5StructVcsr *)pVtabCursor;
+  int rc = SQLITE_OK;
+
+  const u8 *aBlob = 0;
+  int nBlob = 0;
+
+  assert( argc==1 );
+  fts5StructureRelease(pCsr->pStruct);
+  pCsr->pStruct = 0;
+
+  nBlob = sqlite3_value_bytes(argv[0]);
+  aBlob = (const u8*)sqlite3_value_blob(argv[0]);
+  rc = fts5StructureDecode(aBlob, nBlob, 0, &pCsr->pStruct);
+  if( rc==SQLITE_OK ){
+    pCsr->iLevel = 0;
+    pCsr->iRowid = 0;
+    pCsr->iSeg = -1;
+    rc = fts5structNextMethod(pVtabCursor);
+  }
+
+  return rc;
+}
+
+#endif /* SQLITE_TEST || SQLITE_FTS5_DEBUG */
+
+/*
+** This is called as part of registering the FTS5 module with database
+** connection db. It registers several user-defined scalar functions useful
+** with FTS5.
+**
+** If successful, SQLITE_OK is returned. If an error occurs, some other
+** SQLite error code is returned instead.
+*/
+int sqlite3Fts5IndexInit(sqlite3 *db){
+#if defined(SQLITE_TEST) || defined(SQLITE_FTS5_DEBUG)
+  int rc = sqlite3_create_function(
+      db, "fts5_decode", 2, SQLITE_UTF8, 0, fts5DecodeFunction, 0, 0
+  );
+
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_function(
+        db, "fts5_decode_none", 2, 
+        SQLITE_UTF8, (void*)db, fts5DecodeFunction, 0, 0
+    );
+  }
+
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_function(
+        db, "fts5_rowid", -1, SQLITE_UTF8, 0, fts5RowidFunction, 0, 0
+    );
+  }
+
+  if( rc==SQLITE_OK ){
+    static const sqlite3_module fts5structure_module = {
+      0,                           /* iVersion      */
+      0,                           /* xCreate       */
+      fts5structConnectMethod,     /* xConnect      */
+      fts5structBestIndexMethod,   /* xBestIndex    */
+      fts5structDisconnectMethod,  /* xDisconnect   */
+      0,                           /* xDestroy      */
+      fts5structOpenMethod,        /* xOpen         */
+      fts5structCloseMethod,       /* xClose        */
+      fts5structFilterMethod,      /* xFilter       */
+      fts5structNextMethod,        /* xNext         */
+      fts5structEofMethod,         /* xEof          */
+      fts5structColumnMethod,      /* xColumn       */
+      fts5structRowidMethod,       /* xRowid        */
+      0,                           /* xUpdate       */
+      0,                           /* xBegin        */
+      0,                           /* xSync         */
+      0,                           /* xCommit       */
+      0,                           /* xRollback     */
+      0,                           /* xFindFunction */
+      0,                           /* xRename       */
+      0,                           /* xSavepoint    */
+      0,                           /* xRelease      */
+      0,                           /* xRollbackTo   */
+      0,                           /* xShadowName   */
+      0                            /* xIntegrity    */
+    };
+    rc = sqlite3_create_module(db, "fts5_structure", &fts5structure_module, 0);
+  }
+  return rc;
+#else
+  return SQLITE_OK;
+  UNUSED_PARAM(db);
+#endif
+}
+
+
+int sqlite3Fts5IndexReset(Fts5Index *p){
+  assert( p->pStruct==0 || p->iStructVersion!=0 );
+  if( fts5IndexDataVersion(p)!=p->iStructVersion ){
+    fts5StructureInvalidate(p);
+  }
+  return fts5IndexReturn(p);
+}
diff --git a/ext/fts5/fts5_main.c b/ext/fts5/fts5_main.c
new file mode 100644
index 0000000000000000000000000000000000000000..876420f24d8f3af6bffb8526c9e2aac2c6747367
--- /dev/null
+++ b/ext/fts5/fts5_main.c
@@ -0,0 +1,3869 @@
+/*
+** 2014 Jun 09
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This is an SQLite module implementing full-text search.
+*/
+
+
+#include "fts5Int.h"
+
+/*
+** This variable is set to false when running tests for which the on disk
+** structures should not be corrupt. Otherwise, true. If it is false, extra
+** assert() conditions in the fts5 code are activated - conditions that are
+** only true if it is guaranteed that the fts5 database is not corrupt.
+*/
+#ifdef SQLITE_DEBUG
+int sqlite3_fts5_may_be_corrupt = 1;
+#endif
+
+
+typedef struct Fts5Auxdata Fts5Auxdata;
+typedef struct Fts5Auxiliary Fts5Auxiliary;
+typedef struct Fts5Cursor Fts5Cursor;
+typedef struct Fts5FullTable Fts5FullTable;
+typedef struct Fts5Sorter Fts5Sorter;
+typedef struct Fts5TokenizerModule Fts5TokenizerModule;
+
+/*
+** NOTES ON TRANSACTIONS: 
+**
+** SQLite invokes the following virtual table methods as transactions are 
+** opened and closed by the user:
+**
+**     xBegin():    Start of a new transaction.
+**     xSync():     Initial part of two-phase commit.
+**     xCommit():   Final part of two-phase commit.
+**     xRollback(): Rollback the transaction.
+**
+** Anything that is required as part of a commit that may fail is performed
+** in the xSync() callback. Current versions of SQLite ignore any errors 
+** returned by xCommit().
+**
+** And as sub-transactions are opened/closed:
+**
+**     xSavepoint(int S):  Open savepoint S.
+**     xRelease(int S):    Commit and close savepoint S.
+**     xRollbackTo(int S): Rollback to start of savepoint S.
+**
+** During a write-transaction the fts5_index.c module may cache some data 
+** in-memory. It is flushed to disk whenever xSync(), xRelease() or
+** xSavepoint() is called. And discarded whenever xRollback() or xRollbackTo() 
+** is called.
+**
+** Additionally, if SQLITE_DEBUG is defined, an instance of the following
+** structure is used to record the current transaction state. This information
+** is not required, but it is used in the assert() statements executed by
+** function fts5CheckTransactionState() (see below).
+*/
+struct Fts5TransactionState {
+  int eState;                     /* 0==closed, 1==open, 2==synced */
+  int iSavepoint;                 /* Number of open savepoints (0 -> none) */
+};
+
+/*
+** A single object of this type is allocated when the FTS5 module is 
+** registered with a database handle. It is used to store pointers to
+** all registered FTS5 extensions - tokenizers and auxiliary functions.
+*/
+struct Fts5Global {
+  fts5_api api;                   /* User visible part of object (see fts5.h) */
+  sqlite3 *db;                    /* Associated database connection */ 
+  i64 iNextId;                    /* Used to allocate unique cursor ids */
+  Fts5Auxiliary *pAux;            /* First in list of all aux. functions */
+  Fts5TokenizerModule *pTok;      /* First in list of all tokenizer modules */
+  Fts5TokenizerModule *pDfltTok;  /* Default tokenizer module */
+  Fts5Cursor *pCsr;               /* First in list of all open cursors */
+  u32 aLocaleHdr[4];
+};
+
+/*
+** Size of header on fts5_locale() values. And macro to access a buffer
+** containing a copy of the header from an Fts5Config pointer.
+*/
+#define FTS5_LOCALE_HDR_SIZE ((int)sizeof( ((Fts5Global*)0)->aLocaleHdr ))
+#define FTS5_LOCALE_HDR(pConfig) ((const u8*)(pConfig->pGlobal->aLocaleHdr))
+
+#define FTS5_INSTTOKEN_SUBTYPE 73
+
+/*
+** Each auxiliary function registered with the FTS5 module is represented
+** by an object of the following type. All such objects are stored as part
+** of the Fts5Global.pAux list.
+*/
+struct Fts5Auxiliary {
+  Fts5Global *pGlobal;            /* Global context for this function */
+  char *zFunc;                    /* Function name (nul-terminated) */
+  void *pUserData;                /* User-data pointer */
+  fts5_extension_function xFunc;  /* Callback function */
+  void (*xDestroy)(void*);        /* Destructor function */
+  Fts5Auxiliary *pNext;           /* Next registered auxiliary function */
+};
+
+/*
+** Each tokenizer module registered with the FTS5 module is represented
+** by an object of the following type. All such objects are stored as part
+** of the Fts5Global.pTok list.
+**
+** bV2Native:
+**  True if the tokenizer was registered using xCreateTokenizer_v2(), false
+**  for xCreateTokenizer(). If this variable is true, then x2 is populated
+**  with the routines as supplied by the caller and x1 contains synthesized
+**  wrapper routines. In this case the user-data pointer passed to 
+**  x1.xCreate should be a pointer to the Fts5TokenizerModule structure,
+**  not a copy of pUserData.
+**
+**  Of course, if bV2Native is false, then x1 contains the real routines and
+**  x2 the synthesized ones. In this case a pointer to the Fts5TokenizerModule
+**  object should be passed to x2.xCreate.
+**
+**  The synthesized wrapper routines are necessary for xFindTokenizer(_v2)
+**  calls.
+*/
+struct Fts5TokenizerModule {
+  char *zName;                    /* Name of tokenizer */
+  void *pUserData;                /* User pointer passed to xCreate() */
+  int bV2Native;                  /* True if v2 native tokenizer */
+  fts5_tokenizer x1;              /* Tokenizer functions */
+  fts5_tokenizer_v2 x2;           /* V2 tokenizer functions */
+  void (*xDestroy)(void*);        /* Destructor function */
+  Fts5TokenizerModule *pNext;     /* Next registered tokenizer module */
+};
+
+struct Fts5FullTable {
+  Fts5Table p;                    /* Public class members from fts5Int.h */
+  Fts5Storage *pStorage;          /* Document store */
+  Fts5Global *pGlobal;            /* Global (connection wide) data */
+  Fts5Cursor *pSortCsr;           /* Sort data from this cursor */
+  int iSavepoint;                 /* Successful xSavepoint()+1 */
+
+#ifdef SQLITE_DEBUG
+  struct Fts5TransactionState ts;
+#endif
+};
+
+struct Fts5MatchPhrase {
+  Fts5Buffer *pPoslist;           /* Pointer to current poslist */
+  int nTerm;                      /* Size of phrase in terms */
+};
+
+/*
+** pStmt:
+**   SELECT rowid, <fts> FROM <fts> ORDER BY +rank;
+**
+** aIdx[]:
+**   There is one entry in the aIdx[] array for each phrase in the query,
+**   the value of which is the offset within aPoslist[] following the last 
+**   byte of the position list for the corresponding phrase.
+*/
+struct Fts5Sorter {
+  sqlite3_stmt *pStmt;
+  i64 iRowid;                     /* Current rowid */
+  const u8 *aPoslist;             /* Position lists for current row */
+  int nIdx;                       /* Number of entries in aIdx[] */
+  int aIdx[1];                    /* Offsets into aPoslist for current row */
+};
+
+
+/*
+** Virtual-table cursor object.
+**
+** iSpecial:
+**   If this is a 'special' query (refer to function fts5SpecialMatch()), 
+**   then this variable contains the result of the query. 
+**
+** iFirstRowid, iLastRowid:
+**   These variables are only used for FTS5_PLAN_MATCH cursors. Assuming the
+**   cursor iterates in ascending order of rowids, iFirstRowid is the lower
+**   limit of rowids to return, and iLastRowid the upper. In other words, the
+**   WHERE clause in the user's query might have been:
+**
+**       <tbl> MATCH <expr> AND rowid BETWEEN $iFirstRowid AND $iLastRowid
+**
+**   If the cursor iterates in descending order of rowid, iFirstRowid
+**   is the upper limit (i.e. the "first" rowid visited) and iLastRowid
+**   the lower.
+*/
+struct Fts5Cursor {
+  sqlite3_vtab_cursor base;       /* Base class used by SQLite core */
+  Fts5Cursor *pNext;              /* Next cursor in Fts5Cursor.pCsr list */
+  int *aColumnSize;               /* Values for xColumnSize() */
+  i64 iCsrId;                     /* Cursor id */
+
+  /* Zero from this point onwards on cursor reset */
+  int ePlan;                      /* FTS5_PLAN_XXX value */
+  int bDesc;                      /* True for "ORDER BY rowid DESC" queries */
+  i64 iFirstRowid;                /* Return no rowids earlier than this */
+  i64 iLastRowid;                 /* Return no rowids later than this */
+  sqlite3_stmt *pStmt;            /* Statement used to read %_content */
+  Fts5Expr *pExpr;                /* Expression for MATCH queries */
+  Fts5Sorter *pSorter;            /* Sorter for "ORDER BY rank" queries */
+  int csrflags;                   /* Mask of cursor flags (see below) */
+  i64 iSpecial;                   /* Result of special query */
+
+  /* "rank" function. Populated on demand from vtab.xColumn(). */
+  char *zRank;                    /* Custom rank function */
+  char *zRankArgs;                /* Custom rank function args */
+  Fts5Auxiliary *pRank;           /* Rank callback (or NULL) */
+  int nRankArg;                   /* Number of trailing arguments for rank() */
+  sqlite3_value **apRankArg;      /* Array of trailing arguments */
+  sqlite3_stmt *pRankArgStmt;     /* Origin of objects in apRankArg[] */
+
+  /* Auxiliary data storage */
+  Fts5Auxiliary *pAux;            /* Currently executing extension function */
+  Fts5Auxdata *pAuxdata;          /* First in linked list of saved aux-data */
+
+  /* Cache used by auxiliary API functions xInst() and xInstCount() */
+  Fts5PoslistReader *aInstIter;   /* One for each phrase */
+  int nInstAlloc;                 /* Size of aInst[] array (entries / 3) */
+  int nInstCount;                 /* Number of phrase instances */
+  int *aInst;                     /* 3 integers per phrase instance */
+};
+
+/*
+** Bits that make up the "idxNum" parameter passed indirectly by 
+** xBestIndex() to xFilter().
+*/
+#define FTS5_BI_MATCH        0x0001         /* <tbl> MATCH ? */
+#define FTS5_BI_RANK         0x0002         /* rank MATCH ? */
+#define FTS5_BI_ROWID_EQ     0x0004         /* rowid == ? */
+#define FTS5_BI_ROWID_LE     0x0008         /* rowid <= ? */
+#define FTS5_BI_ROWID_GE     0x0010         /* rowid >= ? */
+
+#define FTS5_BI_ORDER_RANK   0x0020
+#define FTS5_BI_ORDER_ROWID  0x0040
+#define FTS5_BI_ORDER_DESC   0x0080
+
+/*
+** Values for Fts5Cursor.csrflags
+*/
+#define FTS5CSR_EOF               0x01
+#define FTS5CSR_REQUIRE_CONTENT   0x02
+#define FTS5CSR_REQUIRE_DOCSIZE   0x04
+#define FTS5CSR_REQUIRE_INST      0x08
+#define FTS5CSR_FREE_ZRANK        0x10
+#define FTS5CSR_REQUIRE_RESEEK    0x20
+#define FTS5CSR_REQUIRE_POSLIST   0x40
+
+#define BitFlagAllTest(x,y) (((x) & (y))==(y))
+#define BitFlagTest(x,y)    (((x) & (y))!=0)
+
+
+/*
+** Macros to Set(), Clear() and Test() cursor flags.
+*/
+#define CsrFlagSet(pCsr, flag)   ((pCsr)->csrflags |= (flag))
+#define CsrFlagClear(pCsr, flag) ((pCsr)->csrflags &= ~(flag))
+#define CsrFlagTest(pCsr, flag)  ((pCsr)->csrflags & (flag))
+
+struct Fts5Auxdata {
+  Fts5Auxiliary *pAux;            /* Extension to which this belongs */
+  void *pPtr;                     /* Pointer value */
+  void(*xDelete)(void*);          /* Destructor */
+  Fts5Auxdata *pNext;             /* Next object in linked list */
+};
+
+#ifdef SQLITE_DEBUG
+#define FTS5_BEGIN      1
+#define FTS5_SYNC       2
+#define FTS5_COMMIT     3
+#define FTS5_ROLLBACK   4
+#define FTS5_SAVEPOINT  5
+#define FTS5_RELEASE    6
+#define FTS5_ROLLBACKTO 7
+static void fts5CheckTransactionState(Fts5FullTable *p, int op, int iSavepoint){
+  switch( op ){
+    case FTS5_BEGIN:
+      assert( p->ts.eState==0 );
+      p->ts.eState = 1;
+      p->ts.iSavepoint = -1;
+      break;
+
+    case FTS5_SYNC:
+      assert( p->ts.eState==1 || p->ts.eState==2 );
+      p->ts.eState = 2;
+      break;
+
+    case FTS5_COMMIT:
+      assert( p->ts.eState==2 );
+      p->ts.eState = 0;
+      break;
+
+    case FTS5_ROLLBACK:
+      assert( p->ts.eState==1 || p->ts.eState==2 || p->ts.eState==0 );
+      p->ts.eState = 0;
+      break;
+
+    case FTS5_SAVEPOINT:
+      assert( p->ts.eState>=1 );
+      assert( iSavepoint>=0 );
+      assert( iSavepoint>=p->ts.iSavepoint );
+      p->ts.iSavepoint = iSavepoint;
+      break;
+      
+    case FTS5_RELEASE:
+      assert( p->ts.eState>=1 );
+      assert( iSavepoint>=0 );
+      assert( iSavepoint<=p->ts.iSavepoint );
+      p->ts.iSavepoint = iSavepoint-1;
+      break;
+
+    case FTS5_ROLLBACKTO:
+      assert( p->ts.eState>=1 );
+      assert( iSavepoint>=-1 );
+      /* The following assert() can fail if another vtab strikes an error
+      ** within an xSavepoint() call then SQLite calls xRollbackTo() - without
+      ** having called xSavepoint() on this vtab.  */
+      /* assert( iSavepoint<=p->ts.iSavepoint ); */
+      p->ts.iSavepoint = iSavepoint;
+      break;
+  }
+}
+#else
+# define fts5CheckTransactionState(x,y,z)
+#endif
+
+/*
+** Return true if pTab is a contentless table. If parameter bIncludeUnindexed
+** is true, this includes contentless tables that store UNINDEXED columns
+** only.
+*/
+static int fts5IsContentless(Fts5FullTable *pTab, int bIncludeUnindexed){
+  int eContent = pTab->p.pConfig->eContent;
+  return (
+    eContent==FTS5_CONTENT_NONE 
+    || (bIncludeUnindexed && eContent==FTS5_CONTENT_UNINDEXED)
+  );
+}
+
+/*
+** Delete a virtual table handle allocated by fts5InitVtab(). 
+*/
+static void fts5FreeVtab(Fts5FullTable *pTab){
+  if( pTab ){
+    sqlite3Fts5IndexClose(pTab->p.pIndex);
+    sqlite3Fts5StorageClose(pTab->pStorage);
+    sqlite3Fts5ConfigFree(pTab->p.pConfig);
+    sqlite3_free(pTab);
+  }
+}
+
+/*
+** The xDisconnect() virtual table method.
+*/
+static int fts5DisconnectMethod(sqlite3_vtab *pVtab){
+  fts5FreeVtab((Fts5FullTable*)pVtab);
+  return SQLITE_OK;
+}
+
+/*
+** The xDestroy() virtual table method.
+*/
+static int fts5DestroyMethod(sqlite3_vtab *pVtab){
+  Fts5Table *pTab = (Fts5Table*)pVtab;
+  int rc = sqlite3Fts5DropAll(pTab->pConfig);
+  if( rc==SQLITE_OK ){
+    fts5FreeVtab((Fts5FullTable*)pVtab);
+  }
+  return rc;
+}
+
+/*
+** This function is the implementation of both the xConnect and xCreate
+** methods of the FTS3 virtual table.
+**
+** The argv[] array contains the following:
+**
+**   argv[0]   -> module name  ("fts5")
+**   argv[1]   -> database name
+**   argv[2]   -> table name
+**   argv[...] -> "column name" and other module argument fields.
+*/
+static int fts5InitVtab(
+  int bCreate,                    /* True for xCreate, false for xConnect */
+  sqlite3 *db,                    /* The SQLite database connection */
+  void *pAux,                     /* Hash table containing tokenizers */
+  int argc,                       /* Number of elements in argv array */
+  const char * const *argv,       /* xCreate/xConnect argument array */
+  sqlite3_vtab **ppVTab,          /* Write the resulting vtab structure here */
+  char **pzErr                    /* Write any error message here */
+){
+  Fts5Global *pGlobal = (Fts5Global*)pAux;
+  const char **azConfig = (const char**)argv;
+  int rc = SQLITE_OK;             /* Return code */
+  Fts5Config *pConfig = 0;        /* Results of parsing argc/argv */
+  Fts5FullTable *pTab = 0;        /* New virtual table object */
+
+  /* Allocate the new vtab object and parse the configuration */
+  pTab = (Fts5FullTable*)sqlite3Fts5MallocZero(&rc, sizeof(Fts5FullTable));
+  if( rc==SQLITE_OK ){
+    rc = sqlite3Fts5ConfigParse(pGlobal, db, argc, azConfig, &pConfig, pzErr);
+    assert( (rc==SQLITE_OK && *pzErr==0) || pConfig==0 );
+  }
+  if( rc==SQLITE_OK ){
+    pConfig->pzErrmsg = pzErr;
+    pTab->p.pConfig = pConfig;
+    pTab->pGlobal = pGlobal;
+    if( bCreate || sqlite3Fts5TokenizerPreload(&pConfig->t) ){
+      rc = sqlite3Fts5LoadTokenizer(pConfig);
+    }
+  }
+
+  /* Open the index sub-system */
+  if( rc==SQLITE_OK ){
+    rc = sqlite3Fts5IndexOpen(pConfig, bCreate, &pTab->p.pIndex, pzErr);
+  }
+
+  /* Open the storage sub-system */
+  if( rc==SQLITE_OK ){
+    rc = sqlite3Fts5StorageOpen(
+        pConfig, pTab->p.pIndex, bCreate, &pTab->pStorage, pzErr
+    );
+  }
+
+  /* Call sqlite3_declare_vtab() */
+  if( rc==SQLITE_OK ){
+    rc = sqlite3Fts5ConfigDeclareVtab(pConfig);
+  }
+
+  /* Load the initial configuration */
+  if( rc==SQLITE_OK ){
+    rc = sqlite3Fts5ConfigLoad(pTab->p.pConfig, pTab->p.pConfig->iCookie-1);
+  }
+
+  if( rc==SQLITE_OK && pConfig->eContent==FTS5_CONTENT_NORMAL ){
+    rc = sqlite3_vtab_config(db, SQLITE_VTAB_CONSTRAINT_SUPPORT, (int)1);
+  }
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_vtab_config(db, SQLITE_VTAB_INNOCUOUS);
+  }
+
+  if( pConfig ) pConfig->pzErrmsg = 0;
+  if( rc!=SQLITE_OK ){
+    fts5FreeVtab(pTab);
+    pTab = 0;
+  }else if( bCreate ){
+    fts5CheckTransactionState(pTab, FTS5_BEGIN, 0);
+  }
+  *ppVTab = (sqlite3_vtab*)pTab;
+  return rc;
+}
+
+/*
+** The xConnect() and xCreate() methods for the virtual table. All the
+** work is done in function fts5InitVtab().
+*/
+static int fts5ConnectMethod(
+  sqlite3 *db,                    /* Database connection */
+  void *pAux,                     /* Pointer to tokenizer hash table */
+  int argc,                       /* Number of elements in argv array */
+  const char * const *argv,       /* xCreate/xConnect argument array */
+  sqlite3_vtab **ppVtab,          /* OUT: New sqlite3_vtab object */
+  char **pzErr                    /* OUT: sqlite3_malloc'd error message */
+){
+  return fts5InitVtab(0, db, pAux, argc, argv, ppVtab, pzErr);
+}
+static int fts5CreateMethod(
+  sqlite3 *db,                    /* Database connection */
+  void *pAux,                     /* Pointer to tokenizer hash table */
+  int argc,                       /* Number of elements in argv array */
+  const char * const *argv,       /* xCreate/xConnect argument array */
+  sqlite3_vtab **ppVtab,          /* OUT: New sqlite3_vtab object */
+  char **pzErr                    /* OUT: sqlite3_malloc'd error message */
+){
+  return fts5InitVtab(1, db, pAux, argc, argv, ppVtab, pzErr);
+}
+
+/*
+** The different query plans.
+*/
+#define FTS5_PLAN_MATCH          1       /* (<tbl> MATCH ?) */
+#define FTS5_PLAN_SOURCE         2       /* A source cursor for SORTED_MATCH */
+#define FTS5_PLAN_SPECIAL        3       /* An internal query */
+#define FTS5_PLAN_SORTED_MATCH   4       /* (<tbl> MATCH ? ORDER BY rank) */
+#define FTS5_PLAN_SCAN           5       /* No usable constraint */
+#define FTS5_PLAN_ROWID          6       /* (rowid = ?) */
+
+/*
+** Set the SQLITE_INDEX_SCAN_UNIQUE flag in pIdxInfo->flags. Unless this
+** extension is currently being used by a version of SQLite too old to
+** support index-info flags. In that case this function is a no-op.
+*/
+static void fts5SetUniqueFlag(sqlite3_index_info *pIdxInfo){
+#if SQLITE_VERSION_NUMBER>=3008012
+#ifndef SQLITE_CORE
+  if( sqlite3_libversion_number()>=3008012 )
+#endif
+  {
+    pIdxInfo->idxFlags |= SQLITE_INDEX_SCAN_UNIQUE;
+  }
+#endif
+}
+
+static int fts5UsePatternMatch(
+  Fts5Config *pConfig, 
+  struct sqlite3_index_constraint *p
+){
+  assert( FTS5_PATTERN_GLOB==SQLITE_INDEX_CONSTRAINT_GLOB );
+  assert( FTS5_PATTERN_LIKE==SQLITE_INDEX_CONSTRAINT_LIKE );
+  if( pConfig->t.ePattern==FTS5_PATTERN_GLOB && p->op==FTS5_PATTERN_GLOB ){
+    return 1;
+  }
+  if( pConfig->t.ePattern==FTS5_PATTERN_LIKE 
+   && (p->op==FTS5_PATTERN_LIKE || p->op==FTS5_PATTERN_GLOB)
+  ){
+    return 1;
+  }
+  return 0;
+}
+
+/*
+** Implementation of the xBestIndex method for FTS5 tables. Within the 
+** WHERE constraint, it searches for the following:
+**
+**   1. A MATCH constraint against the table column.
+**   2. A MATCH constraint against the "rank" column.
+**   3. A MATCH constraint against some other column.
+**   4. An == constraint against the rowid column.
+**   5. A < or <= constraint against the rowid column.
+**   6. A > or >= constraint against the rowid column.
+**
+** Within the ORDER BY, the following are supported:
+**
+**   5. ORDER BY rank [ASC|DESC]
+**   6. ORDER BY rowid [ASC|DESC]
+**
+** Information for the xFilter call is passed via both the idxNum and 
+** idxStr variables. Specifically, idxNum is a bitmask of the following
+** flags used to encode the ORDER BY clause:
+**
+**     FTS5_BI_ORDER_RANK
+**     FTS5_BI_ORDER_ROWID
+**     FTS5_BI_ORDER_DESC
+**
+** idxStr is used to encode data from the WHERE clause. For each argument
+** passed to the xFilter method, the following is appended to idxStr:
+**
+**   Match against table column:            "m"
+**   Match against rank column:             "r"
+**   Match against other column:            "M<column-number>"
+**   LIKE  against other column:            "L<column-number>"
+**   GLOB  against other column:            "G<column-number>"
+**   Equality constraint against the rowid: "="
+**   A < or <= against the rowid:           "<"
+**   A > or >= against the rowid:           ">"
+**
+** This function ensures that there is at most one "r" or "=". And that if
+** there exists an "=" then there is no "<" or ">".
+**
+** If an unusable MATCH operator is present in the WHERE clause, then
+** SQLITE_CONSTRAINT is returned.
+**
+** Costs are assigned as follows:
+**
+**  a) If a MATCH operator is present, the cost depends on the other
+**     constraints also present. As follows:
+**
+**       * No other constraints:         cost=1000.0
+**       * One rowid range constraint:   cost=750.0
+**       * Both rowid range constraints: cost=500.0
+**       * An == rowid constraint:       cost=100.0
+**
+**  b) Otherwise, if there is no MATCH:
+**
+**       * No other constraints:         cost=1000000.0
+**       * One rowid range constraint:   cost=750000.0
+**       * Both rowid range constraints: cost=250000.0
+**       * An == rowid constraint:       cost=10.0
+**
+** Costs are not modified by the ORDER BY clause.
+*/
+static int fts5BestIndexMethod(sqlite3_vtab *pVTab, sqlite3_index_info *pInfo){
+  Fts5Table *pTab = (Fts5Table*)pVTab;
+  Fts5Config *pConfig = pTab->pConfig;
+  const int nCol = pConfig->nCol;
+  int idxFlags = 0;               /* Parameter passed through to xFilter() */
+  int i;
+
+  char *idxStr;
+  int iIdxStr = 0;
+  int iCons = 0;
+
+  int bSeenEq = 0;
+  int bSeenGt = 0;
+  int bSeenLt = 0;
+  int nSeenMatch = 0;
+  int bSeenRank = 0;
+
+
+  assert( SQLITE_INDEX_CONSTRAINT_EQ<SQLITE_INDEX_CONSTRAINT_MATCH );
+  assert( SQLITE_INDEX_CONSTRAINT_GT<SQLITE_INDEX_CONSTRAINT_MATCH );
+  assert( SQLITE_INDEX_CONSTRAINT_LE<SQLITE_INDEX_CONSTRAINT_MATCH );
+  assert( SQLITE_INDEX_CONSTRAINT_GE<SQLITE_INDEX_CONSTRAINT_MATCH );
+  assert( SQLITE_INDEX_CONSTRAINT_LE<SQLITE_INDEX_CONSTRAINT_MATCH );
+
+  if( pConfig->bLock ){
+    pTab->base.zErrMsg = sqlite3_mprintf(
+        "recursively defined fts5 content table"
+    );
+    return SQLITE_ERROR;
+  }
+
+  idxStr = (char*)sqlite3_malloc(pInfo->nConstraint * 8 + 1);
+  if( idxStr==0 ) return SQLITE_NOMEM;
+  pInfo->idxStr = idxStr;
+  pInfo->needToFreeIdxStr = 1;
+
+  for(i=0; i<pInfo->nConstraint; i++){
+    struct sqlite3_index_constraint *p = &pInfo->aConstraint[i];
+    int iCol = p->iColumn;
+    if( p->op==SQLITE_INDEX_CONSTRAINT_MATCH
+     || (p->op==SQLITE_INDEX_CONSTRAINT_EQ && iCol>=nCol)
+    ){
+      /* A MATCH operator or equivalent */
+      if( p->usable==0 || iCol<0 ){
+        /* As there exists an unusable MATCH constraint this is an 
+        ** unusable plan. Return SQLITE_CONSTRAINT. */
+        idxStr[iIdxStr] = 0;
+        return SQLITE_CONSTRAINT;
+      }else{
+        if( iCol==nCol+1 ){
+          if( bSeenRank ) continue;
+          idxStr[iIdxStr++] = 'r';
+          bSeenRank = 1;
+        }else{
+          nSeenMatch++;
+          idxStr[iIdxStr++] = 'M';
+          sqlite3_snprintf(6, &idxStr[iIdxStr], "%d", iCol);
+          idxStr += strlen(&idxStr[iIdxStr]);
+          assert( idxStr[iIdxStr]=='\0' );
+        }
+        pInfo->aConstraintUsage[i].argvIndex = ++iCons;
+        pInfo->aConstraintUsage[i].omit = 1;
+      }
+    }else if( p->usable ){
+      if( iCol>=0 && iCol<nCol && fts5UsePatternMatch(pConfig, p) ){
+        assert( p->op==FTS5_PATTERN_LIKE || p->op==FTS5_PATTERN_GLOB );
+        idxStr[iIdxStr++] = p->op==FTS5_PATTERN_LIKE ? 'L' : 'G';
+        sqlite3_snprintf(6, &idxStr[iIdxStr], "%d", iCol);
+        idxStr += strlen(&idxStr[iIdxStr]);
+        pInfo->aConstraintUsage[i].argvIndex = ++iCons;
+        assert( idxStr[iIdxStr]=='\0' );
+        nSeenMatch++;
+      }else if( bSeenEq==0 && p->op==SQLITE_INDEX_CONSTRAINT_EQ && iCol<0 ){
+        idxStr[iIdxStr++] = '=';
+        bSeenEq = 1;
+        pInfo->aConstraintUsage[i].argvIndex = ++iCons;
+      }
+    }
+  }
+
+  if( bSeenEq==0 ){
+    for(i=0; i<pInfo->nConstraint; i++){
+      struct sqlite3_index_constraint *p = &pInfo->aConstraint[i];
+      if( p->iColumn<0 && p->usable ){
+        int op = p->op;
+        if( op==SQLITE_INDEX_CONSTRAINT_LT || op==SQLITE_INDEX_CONSTRAINT_LE ){
+          if( bSeenLt ) continue;
+          idxStr[iIdxStr++] = '<';
+          pInfo->aConstraintUsage[i].argvIndex = ++iCons;
+          bSeenLt = 1;
+        }else
+        if( op==SQLITE_INDEX_CONSTRAINT_GT || op==SQLITE_INDEX_CONSTRAINT_GE ){
+          if( bSeenGt ) continue;
+          idxStr[iIdxStr++] = '>';
+          pInfo->aConstraintUsage[i].argvIndex = ++iCons;
+          bSeenGt = 1;
+        }
+      }
+    }
+  }
+  idxStr[iIdxStr] = '\0';
+
+  /* Set idxFlags flags for the ORDER BY clause
+  **
+  ** Note that tokendata=1 tables cannot currently handle "ORDER BY rowid DESC".
+  */
+  if( pInfo->nOrderBy==1 ){
+    int iSort = pInfo->aOrderBy[0].iColumn;
+    if( iSort==(pConfig->nCol+1) && nSeenMatch>0 ){
+      idxFlags |= FTS5_BI_ORDER_RANK;
+    }else if( iSort==-1 && (!pInfo->aOrderBy[0].desc || !pConfig->bTokendata) ){
+      idxFlags |= FTS5_BI_ORDER_ROWID;
+    }
+    if( BitFlagTest(idxFlags, FTS5_BI_ORDER_RANK|FTS5_BI_ORDER_ROWID) ){
+      pInfo->orderByConsumed = 1;
+      if( pInfo->aOrderBy[0].desc ){
+        idxFlags |= FTS5_BI_ORDER_DESC;
+      }
+    }
+  }
+
+  /* Calculate the estimated cost based on the flags set in idxFlags. */
+  if( bSeenEq ){
+    pInfo->estimatedCost = nSeenMatch ? 1000.0 : 10.0;
+    if( nSeenMatch==0 ) fts5SetUniqueFlag(pInfo);
+  }else if( bSeenLt && bSeenGt ){
+    pInfo->estimatedCost = nSeenMatch ? 5000.0 : 250000.0;
+  }else if( bSeenLt || bSeenGt ){
+    pInfo->estimatedCost = nSeenMatch ? 7500.0 : 750000.0;
+  }else{
+    pInfo->estimatedCost = nSeenMatch ? 10000.0 : 1000000.0;
+  }
+  for(i=1; i<nSeenMatch; i++){
+    pInfo->estimatedCost *= 0.4;
+  }
+
+  pInfo->idxNum = idxFlags;
+  return SQLITE_OK;
+}
+
+static int fts5NewTransaction(Fts5FullTable *pTab){
+  Fts5Cursor *pCsr;
+  for(pCsr=pTab->pGlobal->pCsr; pCsr; pCsr=pCsr->pNext){
+    if( pCsr->base.pVtab==(sqlite3_vtab*)pTab ) return SQLITE_OK;
+  }
+  return sqlite3Fts5StorageReset(pTab->pStorage);
+}
+
+/*
+** Implementation of xOpen method.
+*/
+static int fts5OpenMethod(sqlite3_vtab *pVTab, sqlite3_vtab_cursor **ppCsr){
+  Fts5FullTable *pTab = (Fts5FullTable*)pVTab;
+  Fts5Config *pConfig = pTab->p.pConfig;
+  Fts5Cursor *pCsr = 0;           /* New cursor object */
+  sqlite3_int64 nByte;            /* Bytes of space to allocate */
+  int rc;                         /* Return code */
+
+  rc = fts5NewTransaction(pTab);
+  if( rc==SQLITE_OK ){
+    nByte = sizeof(Fts5Cursor) + pConfig->nCol * sizeof(int);
+    pCsr = (Fts5Cursor*)sqlite3_malloc64(nByte);
+    if( pCsr ){
+      Fts5Global *pGlobal = pTab->pGlobal;
+      memset(pCsr, 0, (size_t)nByte);
+      pCsr->aColumnSize = (int*)&pCsr[1];
+      pCsr->pNext = pGlobal->pCsr;
+      pGlobal->pCsr = pCsr;
+      pCsr->iCsrId = ++pGlobal->iNextId;
+    }else{
+      rc = SQLITE_NOMEM;
+    }
+  }
+  *ppCsr = (sqlite3_vtab_cursor*)pCsr;
+  return rc;
+}
+
+static int fts5StmtType(Fts5Cursor *pCsr){
+  if( pCsr->ePlan==FTS5_PLAN_SCAN ){
+    return (pCsr->bDesc) ? FTS5_STMT_SCAN_DESC : FTS5_STMT_SCAN_ASC;
+  }
+  return FTS5_STMT_LOOKUP;
+}
+
+/*
+** This function is called after the cursor passed as the only argument
+** is moved to point at a different row. It clears all cached data 
+** specific to the previous row stored by the cursor object.
+*/
+static void fts5CsrNewrow(Fts5Cursor *pCsr){
+  CsrFlagSet(pCsr, 
+      FTS5CSR_REQUIRE_CONTENT 
+    | FTS5CSR_REQUIRE_DOCSIZE 
+    | FTS5CSR_REQUIRE_INST 
+    | FTS5CSR_REQUIRE_POSLIST 
+  );
+}
+
+static void fts5FreeCursorComponents(Fts5Cursor *pCsr){
+  Fts5FullTable *pTab = (Fts5FullTable*)(pCsr->base.pVtab);
+  Fts5Auxdata *pData;
+  Fts5Auxdata *pNext;
+
+  sqlite3_free(pCsr->aInstIter);
+  sqlite3_free(pCsr->aInst);
+  if( pCsr->pStmt ){
+    int eStmt = fts5StmtType(pCsr);
+    sqlite3Fts5StorageStmtRelease(pTab->pStorage, eStmt, pCsr->pStmt);
+  }
+  if( pCsr->pSorter ){
+    Fts5Sorter *pSorter = pCsr->pSorter;
+    sqlite3_finalize(pSorter->pStmt);
+    sqlite3_free(pSorter);
+  }
+
+  if( pCsr->ePlan!=FTS5_PLAN_SOURCE ){
+    sqlite3Fts5ExprFree(pCsr->pExpr);
+  }
+
+  for(pData=pCsr->pAuxdata; pData; pData=pNext){
+    pNext = pData->pNext;
+    if( pData->xDelete ) pData->xDelete(pData->pPtr);
+    sqlite3_free(pData);
+  }
+
+  sqlite3_finalize(pCsr->pRankArgStmt);
+  sqlite3_free(pCsr->apRankArg);
+
+  if( CsrFlagTest(pCsr, FTS5CSR_FREE_ZRANK) ){
+    sqlite3_free(pCsr->zRank);
+    sqlite3_free(pCsr->zRankArgs);
+  }
+
+  sqlite3Fts5IndexCloseReader(pTab->p.pIndex);
+  memset(&pCsr->ePlan, 0, sizeof(Fts5Cursor) - ((u8*)&pCsr->ePlan - (u8*)pCsr));
+}
+
+
+/*
+** Close the cursor.  For additional information see the documentation
+** on the xClose method of the virtual table interface.
+*/
+static int fts5CloseMethod(sqlite3_vtab_cursor *pCursor){
+  if( pCursor ){
+    Fts5FullTable *pTab = (Fts5FullTable*)(pCursor->pVtab);
+    Fts5Cursor *pCsr = (Fts5Cursor*)pCursor;
+    Fts5Cursor **pp;
+
+    fts5FreeCursorComponents(pCsr);
+    /* Remove the cursor from the Fts5Global.pCsr list */
+    for(pp=&pTab->pGlobal->pCsr; (*pp)!=pCsr; pp=&(*pp)->pNext);
+    *pp = pCsr->pNext;
+
+    sqlite3_free(pCsr);
+  }
+  return SQLITE_OK;
+}
+
+static int fts5SorterNext(Fts5Cursor *pCsr){
+  Fts5Sorter *pSorter = pCsr->pSorter;
+  int rc;
+
+  rc = sqlite3_step(pSorter->pStmt);
+  if( rc==SQLITE_DONE ){
+    rc = SQLITE_OK;
+    CsrFlagSet(pCsr, FTS5CSR_EOF|FTS5CSR_REQUIRE_CONTENT);
+  }else if( rc==SQLITE_ROW ){
+    const u8 *a;
+    const u8 *aBlob;
+    int nBlob;
+    int i;
+    int iOff = 0;
+    rc = SQLITE_OK;
+
+    pSorter->iRowid = sqlite3_column_int64(pSorter->pStmt, 0);
+    nBlob = sqlite3_column_bytes(pSorter->pStmt, 1);
+    aBlob = a = sqlite3_column_blob(pSorter->pStmt, 1);
+
+    /* nBlob==0 in detail=none mode. */
+    if( nBlob>0 ){
+      for(i=0; i<(pSorter->nIdx-1); i++){
+        int iVal;
+        a += fts5GetVarint32(a, iVal);
+        iOff += iVal;
+        pSorter->aIdx[i] = iOff;
+      }
+      pSorter->aIdx[i] = &aBlob[nBlob] - a;
+      pSorter->aPoslist = a;
+    }
+
+    fts5CsrNewrow(pCsr);
+  }
+
+  return rc;
+}
+
+
+/*
+** Set the FTS5CSR_REQUIRE_RESEEK flag on all FTS5_PLAN_MATCH cursors 
+** open on table pTab.
+*/
+static void fts5TripCursors(Fts5FullTable *pTab){
+  Fts5Cursor *pCsr;
+  for(pCsr=pTab->pGlobal->pCsr; pCsr; pCsr=pCsr->pNext){
+    if( pCsr->ePlan==FTS5_PLAN_MATCH
+     && pCsr->base.pVtab==(sqlite3_vtab*)pTab 
+    ){
+      CsrFlagSet(pCsr, FTS5CSR_REQUIRE_RESEEK);
+    }
+  }
+}
+
+/*
+** If the REQUIRE_RESEEK flag is set on the cursor passed as the first
+** argument, close and reopen all Fts5IndexIter iterators that the cursor 
+** is using. Then attempt to move the cursor to a rowid equal to or laster
+** (in the cursors sort order - ASC or DESC) than the current rowid. 
+**
+** If the new rowid is not equal to the old, set output parameter *pbSkip
+** to 1 before returning. Otherwise, leave it unchanged.
+**
+** Return SQLITE_OK if successful or if no reseek was required, or an 
+** error code if an error occurred.
+*/
+static int fts5CursorReseek(Fts5Cursor *pCsr, int *pbSkip){
+  int rc = SQLITE_OK;
+  assert( *pbSkip==0 );
+  if( CsrFlagTest(pCsr, FTS5CSR_REQUIRE_RESEEK) ){
+    Fts5FullTable *pTab = (Fts5FullTable*)(pCsr->base.pVtab);
+    int bDesc = pCsr->bDesc;
+    i64 iRowid = sqlite3Fts5ExprRowid(pCsr->pExpr);
+
+    rc = sqlite3Fts5ExprFirst(pCsr->pExpr, pTab->p.pIndex, iRowid, bDesc);
+    if( rc==SQLITE_OK &&  iRowid!=sqlite3Fts5ExprRowid(pCsr->pExpr) ){
+      *pbSkip = 1;
+    }
+
+    CsrFlagClear(pCsr, FTS5CSR_REQUIRE_RESEEK);
+    fts5CsrNewrow(pCsr);
+    if( sqlite3Fts5ExprEof(pCsr->pExpr) ){
+      CsrFlagSet(pCsr, FTS5CSR_EOF);
+      *pbSkip = 1;
+    }
+  }
+  return rc;
+}
+
+
+/*
+** Advance the cursor to the next row in the table that matches the 
+** search criteria.
+**
+** Return SQLITE_OK if nothing goes wrong.  SQLITE_OK is returned
+** even if we reach end-of-file.  The fts5EofMethod() will be called
+** subsequently to determine whether or not an EOF was hit.
+*/
+static int fts5NextMethod(sqlite3_vtab_cursor *pCursor){
+  Fts5Cursor *pCsr = (Fts5Cursor*)pCursor;
+  int rc;
+
+  assert( (pCsr->ePlan<3)==
+          (pCsr->ePlan==FTS5_PLAN_MATCH || pCsr->ePlan==FTS5_PLAN_SOURCE) 
+  );
+  assert( !CsrFlagTest(pCsr, FTS5CSR_EOF) );
+
+  /* If this cursor uses FTS5_PLAN_MATCH and this is a tokendata=1 table,
+  ** clear any token mappings accumulated at the fts5_index.c level. In
+  ** other cases, specifically FTS5_PLAN_SOURCE and FTS5_PLAN_SORTED_MATCH,
+  ** we need to retain the mappings for the entire query.  */
+  if( pCsr->ePlan==FTS5_PLAN_MATCH 
+   && ((Fts5Table*)pCursor->pVtab)->pConfig->bTokendata 
+  ){
+    sqlite3Fts5ExprClearTokens(pCsr->pExpr);
+  }
+
+  if( pCsr->ePlan<3 ){
+    int bSkip = 0;
+    if( (rc = fts5CursorReseek(pCsr, &bSkip)) || bSkip ) return rc;
+    rc = sqlite3Fts5ExprNext(pCsr->pExpr, pCsr->iLastRowid);
+    CsrFlagSet(pCsr, sqlite3Fts5ExprEof(pCsr->pExpr));
+    fts5CsrNewrow(pCsr);
+  }else{
+    switch( pCsr->ePlan ){
+      case FTS5_PLAN_SPECIAL: {
+        CsrFlagSet(pCsr, FTS5CSR_EOF);
+        rc = SQLITE_OK;
+        break;
+      }
+  
+      case FTS5_PLAN_SORTED_MATCH: {
+        rc = fts5SorterNext(pCsr);
+        break;
+      }
+  
+      default: {
+        Fts5Config *pConfig = ((Fts5Table*)pCursor->pVtab)->pConfig;
+        pConfig->bLock++;
+        rc = sqlite3_step(pCsr->pStmt);
+        pConfig->bLock--;
+        if( rc!=SQLITE_ROW ){
+          CsrFlagSet(pCsr, FTS5CSR_EOF);
+          rc = sqlite3_reset(pCsr->pStmt);
+          if( rc!=SQLITE_OK ){
+            pCursor->pVtab->zErrMsg = sqlite3_mprintf(
+                "%s", sqlite3_errmsg(pConfig->db)
+            );
+          }
+        }else{
+          rc = SQLITE_OK;
+          CsrFlagSet(pCsr, FTS5CSR_REQUIRE_DOCSIZE);
+        }
+        break;
+      }
+    }
+  }
+  
+  return rc;
+}
+
+
+static int fts5PrepareStatement(
+  sqlite3_stmt **ppStmt,
+  Fts5Config *pConfig, 
+  const char *zFmt,
+  ...
+){
+  sqlite3_stmt *pRet = 0;
+  int rc;
+  char *zSql;
+  va_list ap;
+
+  va_start(ap, zFmt);
+  zSql = sqlite3_vmprintf(zFmt, ap);
+  if( zSql==0 ){
+    rc = SQLITE_NOMEM; 
+  }else{
+    rc = sqlite3_prepare_v3(pConfig->db, zSql, -1, 
+                            SQLITE_PREPARE_PERSISTENT, &pRet, 0);
+    if( rc!=SQLITE_OK ){
+      sqlite3Fts5ConfigErrmsg(pConfig, "%s", sqlite3_errmsg(pConfig->db));
+    }
+    sqlite3_free(zSql);
+  }
+
+  va_end(ap);
+  *ppStmt = pRet;
+  return rc;
+} 
+
+static int fts5CursorFirstSorted(
+  Fts5FullTable *pTab, 
+  Fts5Cursor *pCsr, 
+  int bDesc
+){
+  Fts5Config *pConfig = pTab->p.pConfig;
+  Fts5Sorter *pSorter;
+  int nPhrase;
+  sqlite3_int64 nByte;
+  int rc;
+  const char *zRank = pCsr->zRank;
+  const char *zRankArgs = pCsr->zRankArgs;
+  
+  nPhrase = sqlite3Fts5ExprPhraseCount(pCsr->pExpr);
+  nByte = sizeof(Fts5Sorter) + sizeof(int) * (nPhrase-1);
+  pSorter = (Fts5Sorter*)sqlite3_malloc64(nByte);
+  if( pSorter==0 ) return SQLITE_NOMEM;
+  memset(pSorter, 0, (size_t)nByte);
+  pSorter->nIdx = nPhrase;
+
+  /* TODO: It would be better to have some system for reusing statement
+  ** handles here, rather than preparing a new one for each query. But that
+  ** is not possible as SQLite reference counts the virtual table objects.
+  ** And since the statement required here reads from this very virtual 
+  ** table, saving it creates a circular reference.
+  **
+  ** If SQLite a built-in statement cache, this wouldn't be a problem. */
+  rc = fts5PrepareStatement(&pSorter->pStmt, pConfig,
+      "SELECT rowid, rank FROM %Q.%Q ORDER BY %s(\"%w\"%s%s) %s",
+      pConfig->zDb, pConfig->zName, zRank, pConfig->zName,
+      (zRankArgs ? ", " : ""),
+      (zRankArgs ? zRankArgs : ""),
+      bDesc ? "DESC" : "ASC"
+  );
+
+  pCsr->pSorter = pSorter;
+  if( rc==SQLITE_OK ){
+    assert( pTab->pSortCsr==0 );
+    pTab->pSortCsr = pCsr;
+    rc = fts5SorterNext(pCsr);
+    pTab->pSortCsr = 0;
+  }
+
+  if( rc!=SQLITE_OK ){
+    sqlite3_finalize(pSorter->pStmt);
+    sqlite3_free(pSorter);
+    pCsr->pSorter = 0;
+  }
+
+  return rc;
+}
+
+static int fts5CursorFirst(Fts5FullTable *pTab, Fts5Cursor *pCsr, int bDesc){
+  int rc;
+  Fts5Expr *pExpr = pCsr->pExpr;
+  rc = sqlite3Fts5ExprFirst(pExpr, pTab->p.pIndex, pCsr->iFirstRowid, bDesc);
+  if( sqlite3Fts5ExprEof(pExpr) ){
+    CsrFlagSet(pCsr, FTS5CSR_EOF);
+  }
+  fts5CsrNewrow(pCsr);
+  return rc;
+}
+
+/*
+** Process a "special" query. A special query is identified as one with a
+** MATCH expression that begins with a '*' character. The remainder of
+** the text passed to the MATCH operator are used as  the special query
+** parameters.
+*/
+static int fts5SpecialMatch(
+  Fts5FullTable *pTab, 
+  Fts5Cursor *pCsr, 
+  const char *zQuery
+){
+  int rc = SQLITE_OK;             /* Return code */
+  const char *z = zQuery;         /* Special query text */
+  int n;                          /* Number of bytes in text at z */
+
+  while( z[0]==' ' ) z++;
+  for(n=0; z[n] && z[n]!=' '; n++);
+
+  assert( pTab->p.base.zErrMsg==0 );
+  pCsr->ePlan = FTS5_PLAN_SPECIAL;
+
+  if( n==5 && 0==sqlite3_strnicmp("reads", z, n) ){
+    pCsr->iSpecial = sqlite3Fts5IndexReads(pTab->p.pIndex);
+  }
+  else if( n==2 && 0==sqlite3_strnicmp("id", z, n) ){
+    pCsr->iSpecial = pCsr->iCsrId;
+  }
+  else{
+    /* An unrecognized directive. Return an error message. */
+    pTab->p.base.zErrMsg = sqlite3_mprintf("unknown special query: %.*s", n, z);
+    rc = SQLITE_ERROR;
+  }
+
+  return rc;
+}
+
+/*
+** Search for an auxiliary function named zName that can be used with table
+** pTab. If one is found, return a pointer to the corresponding Fts5Auxiliary
+** structure. Otherwise, if no such function exists, return NULL.
+*/
+static Fts5Auxiliary *fts5FindAuxiliary(Fts5FullTable *pTab, const char *zName){
+  Fts5Auxiliary *pAux;
+
+  for(pAux=pTab->pGlobal->pAux; pAux; pAux=pAux->pNext){
+    if( sqlite3_stricmp(zName, pAux->zFunc)==0 ) return pAux;
+  }
+
+  /* No function of the specified name was found. Return 0. */
+  return 0;
+}
+
+
+static int fts5FindRankFunction(Fts5Cursor *pCsr){
+  Fts5FullTable *pTab = (Fts5FullTable*)(pCsr->base.pVtab);
+  Fts5Config *pConfig = pTab->p.pConfig;
+  int rc = SQLITE_OK;
+  Fts5Auxiliary *pAux = 0;
+  const char *zRank = pCsr->zRank;
+  const char *zRankArgs = pCsr->zRankArgs;
+
+  if( zRankArgs ){
+    char *zSql = sqlite3Fts5Mprintf(&rc, "SELECT %s", zRankArgs);
+    if( zSql ){
+      sqlite3_stmt *pStmt = 0;
+      rc = sqlite3_prepare_v3(pConfig->db, zSql, -1,
+                              SQLITE_PREPARE_PERSISTENT, &pStmt, 0);
+      sqlite3_free(zSql);
+      assert( rc==SQLITE_OK || pCsr->pRankArgStmt==0 );
+      if( rc==SQLITE_OK ){
+        if( SQLITE_ROW==sqlite3_step(pStmt) ){
+          sqlite3_int64 nByte;
+          pCsr->nRankArg = sqlite3_column_count(pStmt);
+          nByte = sizeof(sqlite3_value*)*pCsr->nRankArg;
+          pCsr->apRankArg = (sqlite3_value**)sqlite3Fts5MallocZero(&rc, nByte);
+          if( rc==SQLITE_OK ){
+            int i;
+            for(i=0; i<pCsr->nRankArg; i++){
+              pCsr->apRankArg[i] = sqlite3_column_value(pStmt, i);
+            }
+          }
+          pCsr->pRankArgStmt = pStmt;
+        }else{
+          rc = sqlite3_finalize(pStmt);
+          assert( rc!=SQLITE_OK );
+        }
+      }
+    }
+  }
+
+  if( rc==SQLITE_OK ){
+    pAux = fts5FindAuxiliary(pTab, zRank);
+    if( pAux==0 ){
+      assert( pTab->p.base.zErrMsg==0 );
+      pTab->p.base.zErrMsg = sqlite3_mprintf("no such function: %s", zRank);
+      rc = SQLITE_ERROR;
+    }
+  }
+
+  pCsr->pRank = pAux;
+  return rc;
+}
+
+
+static int fts5CursorParseRank(
+  Fts5Config *pConfig,
+  Fts5Cursor *pCsr, 
+  sqlite3_value *pRank
+){
+  int rc = SQLITE_OK;
+  if( pRank ){
+    const char *z = (const char*)sqlite3_value_text(pRank);
+    char *zRank = 0;
+    char *zRankArgs = 0;
+
+    if( z==0 ){
+      if( sqlite3_value_type(pRank)==SQLITE_NULL ) rc = SQLITE_ERROR;
+    }else{
+      rc = sqlite3Fts5ConfigParseRank(z, &zRank, &zRankArgs);
+    }
+    if( rc==SQLITE_OK ){
+      pCsr->zRank = zRank;
+      pCsr->zRankArgs = zRankArgs;
+      CsrFlagSet(pCsr, FTS5CSR_FREE_ZRANK);
+    }else if( rc==SQLITE_ERROR ){
+      pCsr->base.pVtab->zErrMsg = sqlite3_mprintf(
+          "parse error in rank function: %s", z
+      );
+    }
+  }else{
+    if( pConfig->zRank ){
+      pCsr->zRank = (char*)pConfig->zRank;
+      pCsr->zRankArgs = (char*)pConfig->zRankArgs;
+    }else{
+      pCsr->zRank = (char*)FTS5_DEFAULT_RANK;
+      pCsr->zRankArgs = 0;
+    }
+  }
+  return rc;
+}
+
+static i64 fts5GetRowidLimit(sqlite3_value *pVal, i64 iDefault){
+  if( pVal ){
+    int eType = sqlite3_value_numeric_type(pVal);
+    if( eType==SQLITE_INTEGER ){
+      return sqlite3_value_int64(pVal);
+    }
+  }
+  return iDefault;
+}
+
+/*
+** Set the error message on the virtual table passed as the first argument.
+*/
+static void fts5SetVtabError(Fts5FullTable *p, const char *zFormat, ...){
+  va_list ap;                     /* ... printf arguments */
+  va_start(ap, zFormat);
+  sqlite3_free(p->p.base.zErrMsg);
+  p->p.base.zErrMsg = sqlite3_vmprintf(zFormat, ap);
+  va_end(ap);
+}
+
+/*
+** Arrange for subsequent calls to sqlite3Fts5Tokenize() to use the locale
+** specified by pLocale/nLocale. The buffer indicated by pLocale must remain
+** valid until after the final call to sqlite3Fts5Tokenize() that will use
+** the locale.
+*/
+static void sqlite3Fts5SetLocale(
+  Fts5Config *pConfig, 
+  const char *zLocale, 
+  int nLocale
+){
+  Fts5TokenizerConfig *pT = &pConfig->t;
+  pT->pLocale = zLocale;
+  pT->nLocale = nLocale;
+}
+
+/*
+** Clear any locale configured by an earlier call to sqlite3Fts5SetLocale().
+*/
+void sqlite3Fts5ClearLocale(Fts5Config *pConfig){
+  sqlite3Fts5SetLocale(pConfig, 0, 0);
+}
+
+/*
+** Return true if the value passed as the only argument is an 
+** fts5_locale() value.  
+*/
+int sqlite3Fts5IsLocaleValue(Fts5Config *pConfig, sqlite3_value *pVal){
+  int ret = 0;
+  if( sqlite3_value_type(pVal)==SQLITE_BLOB ){
+    /* Call sqlite3_value_bytes() after sqlite3_value_blob() in this case.
+    ** If the blob was created using zeroblob(), then sqlite3_value_blob()
+    ** may call malloc(). If this malloc() fails, then the values returned
+    ** by both value_blob() and value_bytes() will be 0. If value_bytes() were 
+    ** called first, then the NULL pointer returned by value_blob() might
+    ** be dereferenced.  */
+    const u8 *pBlob = sqlite3_value_blob(pVal);
+    int nBlob = sqlite3_value_bytes(pVal); 
+    if( nBlob>FTS5_LOCALE_HDR_SIZE
+     && 0==memcmp(pBlob, FTS5_LOCALE_HDR(pConfig), FTS5_LOCALE_HDR_SIZE)
+    ){
+      ret = 1;
+    }
+  }
+  return ret;
+}
+
+/*
+** Value pVal is guaranteed to be an fts5_locale() value, according to
+** sqlite3Fts5IsLocaleValue(). This function extracts the text and locale
+** from the value and returns them separately.
+**
+** If successful, SQLITE_OK is returned and (*ppText) and (*ppLoc) set
+** to point to buffers containing the text and locale, as utf-8,
+** respectively. In this case output parameters (*pnText) and (*pnLoc) are
+** set to the sizes in bytes of these two buffers.
+**
+** Or, if an error occurs, then an SQLite error code is returned. The final
+** value of the four output parameters is undefined in this case.
+*/
+int sqlite3Fts5DecodeLocaleValue(
+  sqlite3_value *pVal, 
+  const char **ppText,
+  int *pnText, 
+  const char **ppLoc, 
+  int *pnLoc
+){
+  const char *p = sqlite3_value_blob(pVal);
+  int n = sqlite3_value_bytes(pVal);
+  int nLoc = 0;
+
+  assert( sqlite3_value_type(pVal)==SQLITE_BLOB );
+  assert( n>FTS5_LOCALE_HDR_SIZE );
+
+  for(nLoc=FTS5_LOCALE_HDR_SIZE; p[nLoc]; nLoc++){
+    if( nLoc==(n-1) ){
+      return SQLITE_MISMATCH;
+    }
+  }
+  *ppLoc = &p[FTS5_LOCALE_HDR_SIZE];
+  *pnLoc = nLoc - FTS5_LOCALE_HDR_SIZE;
+
+  *ppText = &p[nLoc+1];
+  *pnText = n - nLoc - 1;
+  return SQLITE_OK;
+}
+
+/*
+** Argument pVal is the text of a full-text search expression. It may or
+** may not have been wrapped by fts5_locale(). This function extracts
+** the text of the expression, and sets output variable (*pzText) to 
+** point to a nul-terminated buffer containing the expression.
+**
+** If pVal was an fts5_locale() value, then sqlite3Fts5SetLocale() is called 
+** to set the tokenizer to use the specified locale.
+**
+** If output variable (*pbFreeAndReset) is set to true, then the caller
+** is required to (a) call sqlite3Fts5ClearLocale() to reset the tokenizer 
+** locale, and (b) call sqlite3_free() to free (*pzText).
+*/
+static int fts5ExtractExprText(
+  Fts5Config *pConfig,            /* Fts5 configuration */
+  sqlite3_value *pVal,            /* Value to extract expression text from */
+  char **pzText,                  /* OUT: nul-terminated buffer of text */
+  int *pbFreeAndReset             /* OUT: Free (*pzText) and clear locale */
+){
+  int rc = SQLITE_OK;
+
+  if( sqlite3Fts5IsLocaleValue(pConfig, pVal) ){
+    const char *pText = 0;
+    int nText = 0;
+    const char *pLoc = 0;
+    int nLoc = 0;
+    rc = sqlite3Fts5DecodeLocaleValue(pVal, &pText, &nText, &pLoc, &nLoc);
+    *pzText = sqlite3Fts5Mprintf(&rc, "%.*s", nText, pText);
+    if( rc==SQLITE_OK ){
+      sqlite3Fts5SetLocale(pConfig, pLoc, nLoc);
+    }
+    *pbFreeAndReset = 1;
+  }else{
+    *pzText = (char*)sqlite3_value_text(pVal);
+    *pbFreeAndReset = 0;
+  }
+
+  return rc;
+}
+
+
+/*
+** This is the xFilter interface for the virtual table.  See
+** the virtual table xFilter method documentation for additional
+** information.
+** 
+** There are three possible query strategies:
+**
+**   1. Full-text search using a MATCH operator.
+**   2. A by-rowid lookup.
+**   3. A full-table scan.
+*/
+static int fts5FilterMethod(
+  sqlite3_vtab_cursor *pCursor,   /* The cursor used for this query */
+  int idxNum,                     /* Strategy index */
+  const char *idxStr,             /* Unused */
+  int nVal,                       /* Number of elements in apVal */
+  sqlite3_value **apVal           /* Arguments for the indexing scheme */
+){
+  Fts5FullTable *pTab = (Fts5FullTable*)(pCursor->pVtab);
+  Fts5Config *pConfig = pTab->p.pConfig;
+  Fts5Cursor *pCsr = (Fts5Cursor*)pCursor;
+  int rc = SQLITE_OK;             /* Error code */
+  int bDesc;                      /* True if ORDER BY [rank|rowid] DESC */
+  int bOrderByRank;               /* True if ORDER BY rank */
+  sqlite3_value *pRank = 0;       /* rank MATCH ? expression (or NULL) */
+  sqlite3_value *pRowidEq = 0;    /* rowid = ? expression (or NULL) */
+  sqlite3_value *pRowidLe = 0;    /* rowid <= ? expression (or NULL) */
+  sqlite3_value *pRowidGe = 0;    /* rowid >= ? expression (or NULL) */
+  int iCol;                       /* Column on LHS of MATCH operator */
+  char **pzErrmsg = pConfig->pzErrmsg;
+  int bPrefixInsttoken = pConfig->bPrefixInsttoken;
+  int i;
+  int iIdxStr = 0;
+  Fts5Expr *pExpr = 0;
+
+  assert( pConfig->bLock==0 );
+  if( pCsr->ePlan ){
+    fts5FreeCursorComponents(pCsr);
+    memset(&pCsr->ePlan, 0, sizeof(Fts5Cursor) - ((u8*)&pCsr->ePlan-(u8*)pCsr));
+  }
+
+  assert( pCsr->pStmt==0 );
+  assert( pCsr->pExpr==0 );
+  assert( pCsr->csrflags==0 );
+  assert( pCsr->pRank==0 );
+  assert( pCsr->zRank==0 );
+  assert( pCsr->zRankArgs==0 );
+  assert( pTab->pSortCsr==0 || nVal==0 );
+
+  assert( pzErrmsg==0 || pzErrmsg==&pTab->p.base.zErrMsg );
+  pConfig->pzErrmsg = &pTab->p.base.zErrMsg;
+
+  /* Decode the arguments passed through to this function. */
+  for(i=0; i<nVal; i++){
+    switch( idxStr[iIdxStr++] ){
+      case 'r':
+        pRank = apVal[i];
+        break;
+      case 'M': {
+        char *zText = 0;
+        int bFreeAndReset = 0;
+        int bInternal = 0;
+
+        rc = fts5ExtractExprText(pConfig, apVal[i], &zText, &bFreeAndReset);
+        if( rc!=SQLITE_OK ) goto filter_out;
+        if( zText==0 ) zText = "";
+        if( sqlite3_value_subtype(apVal[i])==FTS5_INSTTOKEN_SUBTYPE ){
+          pConfig->bPrefixInsttoken = 1;
+        }
+
+        iCol = 0;
+        do{
+          iCol = iCol*10 + (idxStr[iIdxStr]-'0');
+          iIdxStr++;
+        }while( idxStr[iIdxStr]>='0' && idxStr[iIdxStr]<='9' );
+
+        if( zText[0]=='*' ){
+          /* The user has issued a query of the form "MATCH '*...'". This
+          ** indicates that the MATCH expression is not a full text query,
+          ** but a request for an internal parameter.  */
+          rc = fts5SpecialMatch(pTab, pCsr, &zText[1]);
+          bInternal = 1;
+        }else{
+          char **pzErr = &pTab->p.base.zErrMsg;
+          rc = sqlite3Fts5ExprNew(pConfig, 0, iCol, zText, &pExpr, pzErr);
+          if( rc==SQLITE_OK ){
+            rc = sqlite3Fts5ExprAnd(&pCsr->pExpr, pExpr);
+            pExpr = 0;
+          }
+        }
+
+        if( bFreeAndReset ){
+          sqlite3_free(zText);
+          sqlite3Fts5ClearLocale(pConfig);
+        }
+
+        if( bInternal || rc!=SQLITE_OK ) goto filter_out;
+
+        break;
+      }
+      case 'L':
+      case 'G': {
+        int bGlob = (idxStr[iIdxStr-1]=='G');
+        const char *zText = (const char*)sqlite3_value_text(apVal[i]);
+        iCol = 0;
+        do{
+          iCol = iCol*10 + (idxStr[iIdxStr]-'0');
+          iIdxStr++;
+        }while( idxStr[iIdxStr]>='0' && idxStr[iIdxStr]<='9' );
+        if( zText ){
+          rc = sqlite3Fts5ExprPattern(pConfig, bGlob, iCol, zText, &pExpr);
+        }
+        if( rc==SQLITE_OK ){
+          rc = sqlite3Fts5ExprAnd(&pCsr->pExpr, pExpr);
+          pExpr = 0;
+        }
+        if( rc!=SQLITE_OK ) goto filter_out;
+        break;
+      }
+      case '=':
+        pRowidEq = apVal[i];
+        break;
+      case '<':
+        pRowidLe = apVal[i];
+        break;
+      default: assert( idxStr[iIdxStr-1]=='>' );
+        pRowidGe = apVal[i];
+        break;
+    }
+  }
+  bOrderByRank = ((idxNum & FTS5_BI_ORDER_RANK) ? 1 : 0);
+  pCsr->bDesc = bDesc = ((idxNum & FTS5_BI_ORDER_DESC) ? 1 : 0);
+
+  /* Set the cursor upper and lower rowid limits. Only some strategies 
+  ** actually use them. This is ok, as the xBestIndex() method leaves the
+  ** sqlite3_index_constraint.omit flag clear for range constraints
+  ** on the rowid field.  */
+  if( pRowidEq ){
+    pRowidLe = pRowidGe = pRowidEq;
+  }
+  if( bDesc ){
+    pCsr->iFirstRowid = fts5GetRowidLimit(pRowidLe, LARGEST_INT64);
+    pCsr->iLastRowid = fts5GetRowidLimit(pRowidGe, SMALLEST_INT64);
+  }else{
+    pCsr->iLastRowid = fts5GetRowidLimit(pRowidLe, LARGEST_INT64);
+    pCsr->iFirstRowid = fts5GetRowidLimit(pRowidGe, SMALLEST_INT64);
+  }
+
+  rc = sqlite3Fts5IndexLoadConfig(pTab->p.pIndex);
+  if( rc!=SQLITE_OK ) goto filter_out;
+
+  if( pTab->pSortCsr ){
+    /* If pSortCsr is non-NULL, then this call is being made as part of 
+    ** processing for a "... MATCH <expr> ORDER BY rank" query (ePlan is
+    ** set to FTS5_PLAN_SORTED_MATCH). pSortCsr is the cursor that will
+    ** return results to the user for this query. The current cursor 
+    ** (pCursor) is used to execute the query issued by function 
+    ** fts5CursorFirstSorted() above.  */
+    assert( pRowidEq==0 && pRowidLe==0 && pRowidGe==0 && pRank==0 );
+    assert( nVal==0 && bOrderByRank==0 && bDesc==0 );
+    assert( pCsr->iLastRowid==LARGEST_INT64 );
+    assert( pCsr->iFirstRowid==SMALLEST_INT64 );
+    if( pTab->pSortCsr->bDesc ){
+      pCsr->iLastRowid = pTab->pSortCsr->iFirstRowid;
+      pCsr->iFirstRowid = pTab->pSortCsr->iLastRowid;
+    }else{
+      pCsr->iLastRowid = pTab->pSortCsr->iLastRowid;
+      pCsr->iFirstRowid = pTab->pSortCsr->iFirstRowid;
+    }
+    pCsr->ePlan = FTS5_PLAN_SOURCE;
+    pCsr->pExpr = pTab->pSortCsr->pExpr;
+    rc = fts5CursorFirst(pTab, pCsr, bDesc);
+  }else if( pCsr->pExpr ){
+    assert( rc==SQLITE_OK );
+    rc = fts5CursorParseRank(pConfig, pCsr, pRank);
+    if( rc==SQLITE_OK ){
+      if( bOrderByRank ){
+        pCsr->ePlan = FTS5_PLAN_SORTED_MATCH;
+        rc = fts5CursorFirstSorted(pTab, pCsr, bDesc);
+      }else{
+        pCsr->ePlan = FTS5_PLAN_MATCH;
+        rc = fts5CursorFirst(pTab, pCsr, bDesc);
+      }
+    }
+  }else if( pConfig->zContent==0 ){
+    fts5SetVtabError(pTab,"%s: table does not support scanning",pConfig->zName);
+    rc = SQLITE_ERROR;
+  }else{
+    /* This is either a full-table scan (ePlan==FTS5_PLAN_SCAN) or a lookup
+    ** by rowid (ePlan==FTS5_PLAN_ROWID).  */
+    pCsr->ePlan = (pRowidEq ? FTS5_PLAN_ROWID : FTS5_PLAN_SCAN);
+    rc = sqlite3Fts5StorageStmt(
+        pTab->pStorage, fts5StmtType(pCsr), &pCsr->pStmt, &pTab->p.base.zErrMsg
+    );
+    if( rc==SQLITE_OK ){
+      if( pRowidEq!=0 ){
+        assert( pCsr->ePlan==FTS5_PLAN_ROWID );
+        sqlite3_bind_value(pCsr->pStmt, 1, pRowidEq);
+      }else{
+        sqlite3_bind_int64(pCsr->pStmt, 1, pCsr->iFirstRowid);
+        sqlite3_bind_int64(pCsr->pStmt, 2, pCsr->iLastRowid);
+      }
+      rc = fts5NextMethod(pCursor);
+    }
+  }
+
+ filter_out:
+  sqlite3Fts5ExprFree(pExpr);
+  pConfig->pzErrmsg = pzErrmsg;
+  pConfig->bPrefixInsttoken = bPrefixInsttoken;
+  return rc;
+}
+
+/* 
+** This is the xEof method of the virtual table. SQLite calls this 
+** routine to find out if it has reached the end of a result set.
+*/
+static int fts5EofMethod(sqlite3_vtab_cursor *pCursor){
+  Fts5Cursor *pCsr = (Fts5Cursor*)pCursor;
+  return (CsrFlagTest(pCsr, FTS5CSR_EOF) ? 1 : 0);
+}
+
+/*
+** Return the rowid that the cursor currently points to.
+*/
+static i64 fts5CursorRowid(Fts5Cursor *pCsr){
+  assert( pCsr->ePlan==FTS5_PLAN_MATCH 
+       || pCsr->ePlan==FTS5_PLAN_SORTED_MATCH 
+       || pCsr->ePlan==FTS5_PLAN_SOURCE 
+       || pCsr->ePlan==FTS5_PLAN_SCAN 
+       || pCsr->ePlan==FTS5_PLAN_ROWID 
+  );
+  if( pCsr->pSorter ){
+    return pCsr->pSorter->iRowid;
+  }else if( pCsr->ePlan>=FTS5_PLAN_SCAN ){
+    return sqlite3_column_int64(pCsr->pStmt, 0);
+  }else{
+    return sqlite3Fts5ExprRowid(pCsr->pExpr);
+  }
+}
+
+/* 
+** This is the xRowid method. The SQLite core calls this routine to
+** retrieve the rowid for the current row of the result set. fts5
+** exposes %_content.rowid as the rowid for the virtual table. The
+** rowid should be written to *pRowid.
+*/
+static int fts5RowidMethod(sqlite3_vtab_cursor *pCursor, sqlite_int64 *pRowid){
+  Fts5Cursor *pCsr = (Fts5Cursor*)pCursor;
+  int ePlan = pCsr->ePlan;
+  
+  assert( CsrFlagTest(pCsr, FTS5CSR_EOF)==0 );
+  if( ePlan==FTS5_PLAN_SPECIAL ){
+    *pRowid = 0;
+  }else{
+    *pRowid = fts5CursorRowid(pCsr);
+  }
+
+  return SQLITE_OK;
+}
+
+
+/*
+** If the cursor requires seeking (bSeekRequired flag is set), seek it.
+** Return SQLITE_OK if no error occurs, or an SQLite error code otherwise.
+**
+** If argument bErrormsg is true and an error occurs, an error message may
+** be left in sqlite3_vtab.zErrMsg.
+*/
+static int fts5SeekCursor(Fts5Cursor *pCsr, int bErrormsg){
+  int rc = SQLITE_OK;
+
+  /* If the cursor does not yet have a statement handle, obtain one now. */ 
+  if( pCsr->pStmt==0 ){
+    Fts5FullTable *pTab = (Fts5FullTable*)(pCsr->base.pVtab);
+    int eStmt = fts5StmtType(pCsr);
+    rc = sqlite3Fts5StorageStmt(
+        pTab->pStorage, eStmt, &pCsr->pStmt, (bErrormsg?&pTab->p.base.zErrMsg:0)
+    );
+    assert( rc!=SQLITE_OK || pTab->p.base.zErrMsg==0 );
+    assert( CsrFlagTest(pCsr, FTS5CSR_REQUIRE_CONTENT) );
+  }
+
+  if( rc==SQLITE_OK && CsrFlagTest(pCsr, FTS5CSR_REQUIRE_CONTENT) ){
+    Fts5Table *pTab = (Fts5Table*)(pCsr->base.pVtab);
+    assert( pCsr->pExpr );
+    sqlite3_reset(pCsr->pStmt);
+    sqlite3_bind_int64(pCsr->pStmt, 1, fts5CursorRowid(pCsr));
+    pTab->pConfig->bLock++;
+    rc = sqlite3_step(pCsr->pStmt);
+    pTab->pConfig->bLock--;
+    if( rc==SQLITE_ROW ){
+      rc = SQLITE_OK;
+      CsrFlagClear(pCsr, FTS5CSR_REQUIRE_CONTENT);
+    }else{
+      rc = sqlite3_reset(pCsr->pStmt);
+      if( rc==SQLITE_OK ){
+        rc = FTS5_CORRUPT;
+        fts5SetVtabError((Fts5FullTable*)pTab, 
+            "fts5: missing row %lld from content table %s",
+            fts5CursorRowid(pCsr), 
+            pTab->pConfig->zContent
+        );
+      }else if( pTab->pConfig->pzErrmsg ){
+        fts5SetVtabError((Fts5FullTable*)pTab, 
+            "%s", sqlite3_errmsg(pTab->pConfig->db)
+        );
+      }
+    }
+  }
+  return rc;
+}
+
+/*
+** This function is called to handle an FTS INSERT command. In other words,
+** an INSERT statement of the form:
+**
+**     INSERT INTO fts(fts) VALUES($pCmd)
+**     INSERT INTO fts(fts, rank) VALUES($pCmd, $pVal)
+**
+** Argument pVal is the value assigned to column "fts" by the INSERT 
+** statement. This function returns SQLITE_OK if successful, or an SQLite
+** error code if an error occurs.
+**
+** The commands implemented by this function are documented in the "Special
+** INSERT Directives" section of the documentation. It should be updated if
+** more commands are added to this function.
+*/
+static int fts5SpecialInsert(
+  Fts5FullTable *pTab,            /* Fts5 table object */
+  const char *zCmd,               /* Text inserted into table-name column */
+  sqlite3_value *pVal             /* Value inserted into rank column */
+){
+  Fts5Config *pConfig = pTab->p.pConfig;
+  int rc = SQLITE_OK;
+  int bError = 0;
+  int bLoadConfig = 0;
+
+  if( 0==sqlite3_stricmp("delete-all", zCmd) ){
+    if( pConfig->eContent==FTS5_CONTENT_NORMAL ){
+      fts5SetVtabError(pTab, 
+          "'delete-all' may only be used with a "
+          "contentless or external content fts5 table"
+      );
+      rc = SQLITE_ERROR;
+    }else{
+      rc = sqlite3Fts5StorageDeleteAll(pTab->pStorage);
+    }
+    bLoadConfig = 1;
+  }else if( 0==sqlite3_stricmp("rebuild", zCmd) ){
+    if( fts5IsContentless(pTab, 1) ){
+      fts5SetVtabError(pTab, 
+          "'rebuild' may not be used with a contentless fts5 table"
+      );
+      rc = SQLITE_ERROR;
+    }else{
+      rc = sqlite3Fts5StorageRebuild(pTab->pStorage);
+    }
+    bLoadConfig = 1;
+  }else if( 0==sqlite3_stricmp("optimize", zCmd) ){
+    rc = sqlite3Fts5StorageOptimize(pTab->pStorage);
+  }else if( 0==sqlite3_stricmp("merge", zCmd) ){
+    int nMerge = sqlite3_value_int(pVal);
+    rc = sqlite3Fts5StorageMerge(pTab->pStorage, nMerge);
+  }else if( 0==sqlite3_stricmp("integrity-check", zCmd) ){
+    int iArg = sqlite3_value_int(pVal);
+    rc = sqlite3Fts5StorageIntegrity(pTab->pStorage, iArg);
+#ifdef SQLITE_DEBUG
+  }else if( 0==sqlite3_stricmp("prefix-index", zCmd) ){
+    pConfig->bPrefixIndex = sqlite3_value_int(pVal);
+#endif
+  }else if( 0==sqlite3_stricmp("flush", zCmd) ){
+    rc = sqlite3Fts5FlushToDisk(&pTab->p);
+  }else{
+    rc = sqlite3Fts5FlushToDisk(&pTab->p);
+    if( rc==SQLITE_OK ){
+      rc = sqlite3Fts5IndexLoadConfig(pTab->p.pIndex);
+    }
+    if( rc==SQLITE_OK ){
+      rc = sqlite3Fts5ConfigSetValue(pTab->p.pConfig, zCmd, pVal, &bError);
+    }
+    if( rc==SQLITE_OK ){
+      if( bError ){
+        rc = SQLITE_ERROR;
+      }else{
+        rc = sqlite3Fts5StorageConfigValue(pTab->pStorage, zCmd, pVal, 0);
+      }
+    }
+  }
+
+  if( rc==SQLITE_OK && bLoadConfig ){
+    pTab->p.pConfig->iCookie--;
+    rc = sqlite3Fts5IndexLoadConfig(pTab->p.pIndex);
+  }
+
+  return rc;
+}
+
+static int fts5SpecialDelete(
+  Fts5FullTable *pTab, 
+  sqlite3_value **apVal
+){
+  int rc = SQLITE_OK;
+  int eType1 = sqlite3_value_type(apVal[1]);
+  if( eType1==SQLITE_INTEGER ){
+    sqlite3_int64 iDel = sqlite3_value_int64(apVal[1]);
+    rc = sqlite3Fts5StorageDelete(pTab->pStorage, iDel, &apVal[2], 0);
+  }
+  return rc;
+}
+
+static void fts5StorageInsert(
+  int *pRc, 
+  Fts5FullTable *pTab, 
+  sqlite3_value **apVal, 
+  i64 *piRowid
+){
+  int rc = *pRc;
+  if( rc==SQLITE_OK ){
+    rc = sqlite3Fts5StorageContentInsert(pTab->pStorage, 0, apVal, piRowid);
+  }
+  if( rc==SQLITE_OK ){
+    rc = sqlite3Fts5StorageIndexInsert(pTab->pStorage, apVal, *piRowid);
+  }
+  *pRc = rc;
+}
+
+/*
+**
+** This function is called when the user attempts an UPDATE on a contentless
+** table. Parameter bRowidModified is true if the UPDATE statement modifies
+** the rowid value. Parameter apVal[] contains the new values for each user
+** defined column of the fts5 table. pConfig is the configuration object of the
+** table being updated (guaranteed to be contentless). The contentless_delete=1
+** and contentless_unindexed=1 options may or may not be set. 
+**
+** This function returns SQLITE_OK if the UPDATE can go ahead, or an SQLite
+** error code if it cannot. In this case an error message is also loaded into
+** pConfig. Output parameter (*pbContent) is set to true if the caller should
+** update the %_content table only - not the FTS index or any other shadow
+** table. This occurs when an UPDATE modifies only UNINDEXED columns of the
+** table.
+**
+** An UPDATE may proceed if:
+**
+**   * The only columns modified are UNINDEXED columns, or
+**
+**   * The contentless_delete=1 option was specified and all of the indexed
+**     columns (not a subset) have been modified.
+*/
+static int fts5ContentlessUpdate(
+  Fts5Config *pConfig,
+  sqlite3_value **apVal,
+  int bRowidModified,
+  int *pbContent
+){
+  int ii;
+  int bSeenIndex = 0;             /* Have seen modified indexed column */
+  int bSeenIndexNC = 0;           /* Have seen unmodified indexed column */
+  int rc = SQLITE_OK;
+
+  for(ii=0; ii<pConfig->nCol; ii++){
+    if( pConfig->abUnindexed[ii]==0 ){
+      if( sqlite3_value_nochange(apVal[ii]) ){
+        bSeenIndexNC++;
+      }else{
+        bSeenIndex++;
+      }
+    }
+  }
+
+  if( bSeenIndex==0 && bRowidModified==0 ){
+    *pbContent = 1;
+  }else{
+    if( bSeenIndexNC || pConfig->bContentlessDelete==0 ){
+      rc = SQLITE_ERROR;
+      sqlite3Fts5ConfigErrmsg(pConfig, 
+          (pConfig->bContentlessDelete ?
+          "%s a subset of columns on fts5 contentless-delete table: %s" :
+          "%s contentless fts5 table: %s")
+          , "cannot UPDATE", pConfig->zName
+      );
+    }
+  }
+
+  return rc;
+}
+
+/* 
+** This function is the implementation of the xUpdate callback used by 
+** FTS3 virtual tables. It is invoked by SQLite each time a row is to be
+** inserted, updated or deleted.
+**
+** A delete specifies a single argument - the rowid of the row to remove.
+** 
+** Update and insert operations pass:
+**
+**   1. The "old" rowid, or NULL.
+**   2. The "new" rowid.
+**   3. Values for each of the nCol matchable columns.
+**   4. Values for the two hidden columns (<tablename> and "rank").
+*/
+static int fts5UpdateMethod(
+  sqlite3_vtab *pVtab,            /* Virtual table handle */
+  int nArg,                       /* Size of argument array */
+  sqlite3_value **apVal,          /* Array of arguments */
+  sqlite_int64 *pRowid            /* OUT: The affected (or effected) rowid */
+){
+  Fts5FullTable *pTab = (Fts5FullTable*)pVtab;
+  Fts5Config *pConfig = pTab->p.pConfig;
+  int eType0;                     /* value_type() of apVal[0] */
+  int rc = SQLITE_OK;             /* Return code */
+  int bUpdateOrDelete = 0;
+
+  /* A transaction must be open when this is called. */
+  assert( pTab->ts.eState==1 || pTab->ts.eState==2 );
+
+  assert( pVtab->zErrMsg==0 );
+  assert( nArg==1 || nArg==(2+pConfig->nCol+2) );
+  assert( sqlite3_value_type(apVal[0])==SQLITE_INTEGER 
+       || sqlite3_value_type(apVal[0])==SQLITE_NULL 
+  );
+  assert( pTab->p.pConfig->pzErrmsg==0 );
+  if( pConfig->pgsz==0 ){
+    rc = sqlite3Fts5IndexLoadConfig(pTab->p.pIndex);
+    if( rc!=SQLITE_OK ) return rc;
+  }
+
+  pTab->p.pConfig->pzErrmsg = &pTab->p.base.zErrMsg;
+
+  /* Put any active cursors into REQUIRE_SEEK state. */
+  fts5TripCursors(pTab);
+
+  eType0 = sqlite3_value_type(apVal[0]);
+  if( eType0==SQLITE_NULL 
+   && sqlite3_value_type(apVal[2+pConfig->nCol])!=SQLITE_NULL 
+  ){
+    /* A "special" INSERT op. These are handled separately. */
+    const char *z = (const char*)sqlite3_value_text(apVal[2+pConfig->nCol]);
+    if( pConfig->eContent!=FTS5_CONTENT_NORMAL 
+      && 0==sqlite3_stricmp("delete", z) 
+    ){
+      if( pConfig->bContentlessDelete ){
+        fts5SetVtabError(pTab, 
+            "'delete' may not be used with a contentless_delete=1 table"
+        );
+        rc = SQLITE_ERROR;
+      }else{
+        rc = fts5SpecialDelete(pTab, apVal);
+        bUpdateOrDelete = 1;
+      }
+    }else{
+      rc = fts5SpecialInsert(pTab, z, apVal[2 + pConfig->nCol + 1]);
+    }
+  }else{
+    /* A regular INSERT, UPDATE or DELETE statement. The trick here is that
+    ** any conflict on the rowid value must be detected before any 
+    ** modifications are made to the database file. There are 4 cases:
+    **
+    **   1) DELETE
+    **   2) UPDATE (rowid not modified)
+    **   3) UPDATE (rowid modified)
+    **   4) INSERT
+    **
+    ** Cases 3 and 4 may violate the rowid constraint.
+    */
+    int eConflict = SQLITE_ABORT;
+    if( pConfig->eContent==FTS5_CONTENT_NORMAL || pConfig->bContentlessDelete ){
+      eConflict = sqlite3_vtab_on_conflict(pConfig->db);
+    }
+
+    assert( eType0==SQLITE_INTEGER || eType0==SQLITE_NULL );
+    assert( nArg!=1 || eType0==SQLITE_INTEGER );
+
+    /* DELETE */
+    if( nArg==1 ){
+      /* It is only possible to DELETE from a contentless table if the
+      ** contentless_delete=1 flag is set. */
+      if( fts5IsContentless(pTab, 1) && pConfig->bContentlessDelete==0 ){
+        fts5SetVtabError(pTab, 
+            "cannot DELETE from contentless fts5 table: %s", pConfig->zName
+        );
+        rc = SQLITE_ERROR;
+      }else{
+        i64 iDel = sqlite3_value_int64(apVal[0]);  /* Rowid to delete */
+        rc = sqlite3Fts5StorageDelete(pTab->pStorage, iDel, 0, 0);
+        bUpdateOrDelete = 1;
+      }
+    }
+
+    /* INSERT or UPDATE */
+    else{
+      int eType1 = sqlite3_value_numeric_type(apVal[1]);
+
+      /* It is an error to write an fts5_locale() value to a table without
+      ** the locale=1 option. */
+      if( pConfig->bLocale==0 ){
+        int ii;
+        for(ii=0; ii<pConfig->nCol; ii++){
+          sqlite3_value *pVal = apVal[ii+2];
+          if( sqlite3Fts5IsLocaleValue(pConfig, pVal) ){
+            fts5SetVtabError(pTab, "fts5_locale() requires locale=1");
+            rc = SQLITE_MISMATCH;
+            goto update_out;
+          }
+        }
+      }
+
+      if( eType0!=SQLITE_INTEGER ){
+        /* An INSERT statement. If the conflict-mode is REPLACE, first remove
+        ** the current entry (if any). */
+        if( eConflict==SQLITE_REPLACE && eType1==SQLITE_INTEGER ){
+          i64 iNew = sqlite3_value_int64(apVal[1]);  /* Rowid to delete */
+          rc = sqlite3Fts5StorageDelete(pTab->pStorage, iNew, 0, 0);
+          bUpdateOrDelete = 1;
+        }
+        fts5StorageInsert(&rc, pTab, apVal, pRowid);
+      }
+
+      /* UPDATE */
+      else{
+        Fts5Storage *pStorage = pTab->pStorage;
+        i64 iOld = sqlite3_value_int64(apVal[0]);  /* Old rowid */
+        i64 iNew = sqlite3_value_int64(apVal[1]);  /* New rowid */
+        int bContent = 0;         /* Content only update */
+
+        /* If this is a contentless table (including contentless_unindexed=1
+        ** tables), check if the UPDATE may proceed.  */
+        if( fts5IsContentless(pTab, 1) ){
+          rc = fts5ContentlessUpdate(pConfig, &apVal[2], iOld!=iNew, &bContent);
+          if( rc!=SQLITE_OK ) goto update_out;
+        }
+
+        if( eType1!=SQLITE_INTEGER ){
+          rc = SQLITE_MISMATCH;
+        }else if( iOld!=iNew ){
+          assert( bContent==0 );
+          if( eConflict==SQLITE_REPLACE ){
+            rc = sqlite3Fts5StorageDelete(pStorage, iOld, 0, 1);
+            if( rc==SQLITE_OK ){
+              rc = sqlite3Fts5StorageDelete(pStorage, iNew, 0, 0);
+            }
+            fts5StorageInsert(&rc, pTab, apVal, pRowid);
+          }else{
+            rc = sqlite3Fts5StorageFindDeleteRow(pStorage, iOld);
+            if( rc==SQLITE_OK ){
+              rc = sqlite3Fts5StorageContentInsert(pStorage, 0, apVal, pRowid);
+            }
+            if( rc==SQLITE_OK ){
+              rc = sqlite3Fts5StorageDelete(pStorage, iOld, 0, 0);
+            }
+            if( rc==SQLITE_OK ){
+              rc = sqlite3Fts5StorageIndexInsert(pStorage, apVal, *pRowid);
+            }
+          }
+        }else if( bContent ){
+          /* This occurs when an UPDATE on a contentless table affects *only*
+          ** UNINDEXED columns. This is a no-op for contentless_unindexed=0
+          ** tables, or a write to the %_content table only for =1 tables.  */
+          assert( fts5IsContentless(pTab, 1) );
+          rc = sqlite3Fts5StorageFindDeleteRow(pStorage, iOld);
+          if( rc==SQLITE_OK ){
+            rc = sqlite3Fts5StorageContentInsert(pStorage, 1, apVal, pRowid);
+          }
+        }else{
+          rc = sqlite3Fts5StorageDelete(pStorage, iOld, 0, 1);
+          fts5StorageInsert(&rc, pTab, apVal, pRowid);
+        }
+        bUpdateOrDelete = 1;
+        sqlite3Fts5StorageReleaseDeleteRow(pStorage);
+      }
+
+    }
+  }
+
+  if( rc==SQLITE_OK 
+   && bUpdateOrDelete 
+   && pConfig->bSecureDelete 
+   && pConfig->iVersion==FTS5_CURRENT_VERSION 
+  ){
+    rc = sqlite3Fts5StorageConfigValue(
+        pTab->pStorage, "version", 0, FTS5_CURRENT_VERSION_SECUREDELETE
+    );
+    if( rc==SQLITE_OK ){
+      pConfig->iVersion = FTS5_CURRENT_VERSION_SECUREDELETE;
+    }
+  }
+
+ update_out:
+  pTab->p.pConfig->pzErrmsg = 0;
+  return rc;
+}
+
+/*
+** Implementation of xSync() method. 
+*/
+static int fts5SyncMethod(sqlite3_vtab *pVtab){
+  int rc;
+  Fts5FullTable *pTab = (Fts5FullTable*)pVtab;
+  fts5CheckTransactionState(pTab, FTS5_SYNC, 0);
+  pTab->p.pConfig->pzErrmsg = &pTab->p.base.zErrMsg;
+  rc = sqlite3Fts5FlushToDisk(&pTab->p);
+  pTab->p.pConfig->pzErrmsg = 0;
+  return rc;
+}
+
+/*
+** Implementation of xBegin() method. 
+*/
+static int fts5BeginMethod(sqlite3_vtab *pVtab){
+  int rc = fts5NewTransaction((Fts5FullTable*)pVtab);
+  if( rc==SQLITE_OK ){
+    fts5CheckTransactionState((Fts5FullTable*)pVtab, FTS5_BEGIN, 0);
+  }
+  return rc;
+}
+
+/*
+** Implementation of xCommit() method. This is a no-op. The contents of
+** the pending-terms hash-table have already been flushed into the database
+** by fts5SyncMethod().
+*/
+static int fts5CommitMethod(sqlite3_vtab *pVtab){
+  UNUSED_PARAM(pVtab);  /* Call below is a no-op for NDEBUG builds */
+  fts5CheckTransactionState((Fts5FullTable*)pVtab, FTS5_COMMIT, 0);
+  return SQLITE_OK;
+}
+
+/*
+** Implementation of xRollback(). Discard the contents of the pending-terms
+** hash-table. Any changes made to the database are reverted by SQLite.
+*/
+static int fts5RollbackMethod(sqlite3_vtab *pVtab){
+  int rc;
+  Fts5FullTable *pTab = (Fts5FullTable*)pVtab;
+  fts5CheckTransactionState(pTab, FTS5_ROLLBACK, 0);
+  rc = sqlite3Fts5StorageRollback(pTab->pStorage);
+  return rc;
+}
+
+static int fts5CsrPoslist(Fts5Cursor*, int, const u8**, int*);
+
+static void *fts5ApiUserData(Fts5Context *pCtx){
+  Fts5Cursor *pCsr = (Fts5Cursor*)pCtx;
+  return pCsr->pAux->pUserData;
+}
+
+static int fts5ApiColumnCount(Fts5Context *pCtx){
+  Fts5Cursor *pCsr = (Fts5Cursor*)pCtx;
+  return ((Fts5Table*)(pCsr->base.pVtab))->pConfig->nCol;
+}
+
+static int fts5ApiColumnTotalSize(
+  Fts5Context *pCtx, 
+  int iCol, 
+  sqlite3_int64 *pnToken
+){
+  Fts5Cursor *pCsr = (Fts5Cursor*)pCtx;
+  Fts5FullTable *pTab = (Fts5FullTable*)(pCsr->base.pVtab);
+  return sqlite3Fts5StorageSize(pTab->pStorage, iCol, pnToken);
+}
+
+static int fts5ApiRowCount(Fts5Context *pCtx, i64 *pnRow){
+  Fts5Cursor *pCsr = (Fts5Cursor*)pCtx;
+  Fts5FullTable *pTab = (Fts5FullTable*)(pCsr->base.pVtab);
+  return sqlite3Fts5StorageRowCount(pTab->pStorage, pnRow);
+}
+
+/*
+** Implementation of xTokenize_v2() API.
+*/
+static int fts5ApiTokenize_v2(
+  Fts5Context *pCtx, 
+  const char *pText, int nText, 
+  const char *pLoc, int nLoc, 
+  void *pUserData,
+  int (*xToken)(void*, int, const char*, int, int, int)
+){
+  Fts5Cursor *pCsr = (Fts5Cursor*)pCtx;
+  Fts5Table *pTab = (Fts5Table*)(pCsr->base.pVtab);
+  int rc = SQLITE_OK;
+
+  sqlite3Fts5SetLocale(pTab->pConfig, pLoc, nLoc);
+  rc = sqlite3Fts5Tokenize(pTab->pConfig, 
+      FTS5_TOKENIZE_AUX, pText, nText, pUserData, xToken
+  );
+  sqlite3Fts5SetLocale(pTab->pConfig, 0, 0);
+
+  return rc;
+}
+
+/*
+** Implementation of xTokenize() API. This is just xTokenize_v2() with NULL/0
+** passed as the locale.
+*/
+static int fts5ApiTokenize(
+  Fts5Context *pCtx, 
+  const char *pText, int nText, 
+  void *pUserData,
+  int (*xToken)(void*, int, const char*, int, int, int)
+){
+  return fts5ApiTokenize_v2(pCtx, pText, nText, 0, 0, pUserData, xToken);
+}
+
+static int fts5ApiPhraseCount(Fts5Context *pCtx){
+  Fts5Cursor *pCsr = (Fts5Cursor*)pCtx;
+  return sqlite3Fts5ExprPhraseCount(pCsr->pExpr);
+}
+
+static int fts5ApiPhraseSize(Fts5Context *pCtx, int iPhrase){
+  Fts5Cursor *pCsr = (Fts5Cursor*)pCtx;
+  return sqlite3Fts5ExprPhraseSize(pCsr->pExpr, iPhrase);
+}
+
+/*
+** Argument pStmt is an SQL statement of the type used by Fts5Cursor. This
+** function extracts the text value of column iCol of the current row.
+** Additionally, if there is an associated locale, it invokes
+** sqlite3Fts5SetLocale() to configure the tokenizer. In all cases the caller
+** should invoke sqlite3Fts5ClearLocale() to clear the locale at some point
+** after this function returns.
+**
+** If successful, (*ppText) is set to point to a buffer containing the text
+** value as utf-8 and SQLITE_OK returned. (*pnText) is set to the size of that
+** buffer in bytes. It is not guaranteed to be nul-terminated. If an error
+** occurs, an SQLite error code is returned. The final values of the two
+** output parameters are undefined in this case.
+*/
+static int fts5TextFromStmt(
+  Fts5Config *pConfig,
+  sqlite3_stmt *pStmt,
+  int iCol,
+  const char **ppText,
+  int *pnText
+){
+  sqlite3_value *pVal = sqlite3_column_value(pStmt, iCol+1);
+  const char *pLoc = 0;
+  int nLoc = 0;
+  int rc = SQLITE_OK;
+
+  if( pConfig->bLocale 
+   && pConfig->eContent==FTS5_CONTENT_EXTERNAL
+   && sqlite3Fts5IsLocaleValue(pConfig, pVal) 
+  ){
+    rc = sqlite3Fts5DecodeLocaleValue(pVal, ppText, pnText, &pLoc, &nLoc);
+  }else{
+    *ppText = (const char*)sqlite3_value_text(pVal);
+    *pnText = sqlite3_value_bytes(pVal);
+    if( pConfig->bLocale && pConfig->eContent==FTS5_CONTENT_NORMAL ){
+      pLoc = (const char*)sqlite3_column_text(pStmt, iCol+1+pConfig->nCol);
+      nLoc = sqlite3_column_bytes(pStmt, iCol+1+pConfig->nCol);
+    }
+  }
+  sqlite3Fts5SetLocale(pConfig, pLoc, nLoc);
+  return rc;
+}
+
+static int fts5ApiColumnText(
+  Fts5Context *pCtx, 
+  int iCol, 
+  const char **pz, 
+  int *pn
+){
+  int rc = SQLITE_OK;
+  Fts5Cursor *pCsr = (Fts5Cursor*)pCtx;
+  Fts5Table *pTab = (Fts5Table*)(pCsr->base.pVtab);
+
+  assert( pCsr->ePlan!=FTS5_PLAN_SPECIAL );
+  if( iCol<0 || iCol>=pTab->pConfig->nCol ){
+    rc = SQLITE_RANGE;
+  }else if( fts5IsContentless((Fts5FullTable*)(pCsr->base.pVtab), 0) ){
+    *pz = 0;
+    *pn = 0;
+  }else{
+    rc = fts5SeekCursor(pCsr, 0);
+    if( rc==SQLITE_OK ){
+      rc = fts5TextFromStmt(pTab->pConfig, pCsr->pStmt, iCol, pz, pn);
+      sqlite3Fts5ClearLocale(pTab->pConfig);
+    }
+  }
+  return rc;
+}
+
+/*
+** This is called by various API functions - xInst, xPhraseFirst, 
+** xPhraseFirstColumn etc. - to obtain the position list for phrase iPhrase
+** of the current row. This function works for both detail=full tables (in
+** which case the position-list was read from the fts index) or for other
+** detail= modes if the row content is available.
+*/
+static int fts5CsrPoslist(
+  Fts5Cursor *pCsr,               /* Fts5 cursor object */
+  int iPhrase,                    /* Phrase to find position list for */
+  const u8 **pa,                  /* OUT: Pointer to position list buffer */
+  int *pn                         /* OUT: Size of (*pa) in bytes */
+){
+  Fts5Config *pConfig = ((Fts5Table*)(pCsr->base.pVtab))->pConfig;
+  int rc = SQLITE_OK;
+  int bLive = (pCsr->pSorter==0);
+
+  if( iPhrase<0 || iPhrase>=sqlite3Fts5ExprPhraseCount(pCsr->pExpr) ){
+    rc = SQLITE_RANGE;
+  }else if( pConfig->eDetail!=FTS5_DETAIL_FULL 
+         && fts5IsContentless((Fts5FullTable*)pCsr->base.pVtab, 1)
+  ){
+    *pa = 0;
+    *pn = 0;
+    return SQLITE_OK;
+  }else if( CsrFlagTest(pCsr, FTS5CSR_REQUIRE_POSLIST) ){
+    if( pConfig->eDetail!=FTS5_DETAIL_FULL ){
+      Fts5PoslistPopulator *aPopulator;
+      int i;
+
+      aPopulator = sqlite3Fts5ExprClearPoslists(pCsr->pExpr, bLive);
+      if( aPopulator==0 ) rc = SQLITE_NOMEM;
+      if( rc==SQLITE_OK ){
+        rc = fts5SeekCursor(pCsr, 0);
+      }
+      for(i=0; i<pConfig->nCol && rc==SQLITE_OK; i++){
+        const char *z = 0;
+        int n = 0; 
+        rc = fts5TextFromStmt(pConfig, pCsr->pStmt, i, &z, &n);
+        if( rc==SQLITE_OK ){
+          rc = sqlite3Fts5ExprPopulatePoslists(
+              pConfig, pCsr->pExpr, aPopulator, i, z, n
+          );
+        }
+        sqlite3Fts5ClearLocale(pConfig);
+      }
+      sqlite3_free(aPopulator);
+
+      if( pCsr->pSorter ){
+        sqlite3Fts5ExprCheckPoslists(pCsr->pExpr, pCsr->pSorter->iRowid);
+      }
+    }
+    CsrFlagClear(pCsr, FTS5CSR_REQUIRE_POSLIST);
+  }
+
+  if( rc==SQLITE_OK ){
+    if( pCsr->pSorter && pConfig->eDetail==FTS5_DETAIL_FULL ){
+      Fts5Sorter *pSorter = pCsr->pSorter;
+      int i1 = (iPhrase==0 ? 0 : pSorter->aIdx[iPhrase-1]);
+      *pn = pSorter->aIdx[iPhrase] - i1;
+      *pa = &pSorter->aPoslist[i1];
+    }else{
+      *pn = sqlite3Fts5ExprPoslist(pCsr->pExpr, iPhrase, pa);
+    }
+  }else{
+    *pa = 0;
+    *pn = 0;
+  }
+
+  return rc;
+}
+
+/*
+** Ensure that the Fts5Cursor.nInstCount and aInst[] variables are populated
+** correctly for the current view. Return SQLITE_OK if successful, or an
+** SQLite error code otherwise.
+*/
+static int fts5CacheInstArray(Fts5Cursor *pCsr){
+  int rc = SQLITE_OK;
+  Fts5PoslistReader *aIter;       /* One iterator for each phrase */
+  int nIter;                      /* Number of iterators/phrases */
+  int nCol = ((Fts5Table*)pCsr->base.pVtab)->pConfig->nCol;
+  
+  nIter = sqlite3Fts5ExprPhraseCount(pCsr->pExpr);
+  if( pCsr->aInstIter==0 ){
+    sqlite3_int64 nByte = sizeof(Fts5PoslistReader) * nIter;
+    pCsr->aInstIter = (Fts5PoslistReader*)sqlite3Fts5MallocZero(&rc, nByte);
+  }
+  aIter = pCsr->aInstIter;
+
+  if( aIter ){
+    int nInst = 0;                /* Number instances seen so far */
+    int i;
+
+    /* Initialize all iterators */
+    for(i=0; i<nIter && rc==SQLITE_OK; i++){
+      const u8 *a;
+      int n; 
+      rc = fts5CsrPoslist(pCsr, i, &a, &n);
+      if( rc==SQLITE_OK ){
+        sqlite3Fts5PoslistReaderInit(a, n, &aIter[i]);
+      }
+    }
+
+    if( rc==SQLITE_OK ){
+      while( 1 ){
+        int *aInst;
+        int iBest = -1;
+        for(i=0; i<nIter; i++){
+          if( (aIter[i].bEof==0) 
+              && (iBest<0 || aIter[i].iPos<aIter[iBest].iPos) 
+            ){
+            iBest = i;
+          }
+        }
+        if( iBest<0 ) break;
+
+        nInst++;
+        if( nInst>=pCsr->nInstAlloc ){
+          int nNewSize = pCsr->nInstAlloc ? pCsr->nInstAlloc*2 : 32;
+          aInst = (int*)sqlite3_realloc64(
+              pCsr->aInst, nNewSize*sizeof(int)*3
+              );
+          if( aInst ){
+            pCsr->aInst = aInst;
+            pCsr->nInstAlloc = nNewSize;
+          }else{
+            nInst--;
+            rc = SQLITE_NOMEM;
+            break;
+          }
+        }
+
+        aInst = &pCsr->aInst[3 * (nInst-1)];
+        aInst[0] = iBest;
+        aInst[1] = FTS5_POS2COLUMN(aIter[iBest].iPos);
+        aInst[2] = FTS5_POS2OFFSET(aIter[iBest].iPos);
+        assert( aInst[1]>=0 );
+        if( aInst[1]>=nCol ){
+          rc = FTS5_CORRUPT;
+          break;
+        }
+        sqlite3Fts5PoslistReaderNext(&aIter[iBest]);
+      }
+    }
+
+    pCsr->nInstCount = nInst;
+    CsrFlagClear(pCsr, FTS5CSR_REQUIRE_INST);
+  }
+  return rc;
+}
+
+static int fts5ApiInstCount(Fts5Context *pCtx, int *pnInst){
+  Fts5Cursor *pCsr = (Fts5Cursor*)pCtx;
+  int rc = SQLITE_OK;
+  if( CsrFlagTest(pCsr, FTS5CSR_REQUIRE_INST)==0 
+   || SQLITE_OK==(rc = fts5CacheInstArray(pCsr)) ){
+    *pnInst = pCsr->nInstCount;
+  }
+  return rc;
+}
+
+static int fts5ApiInst(
+  Fts5Context *pCtx, 
+  int iIdx, 
+  int *piPhrase, 
+  int *piCol, 
+  int *piOff
+){
+  Fts5Cursor *pCsr = (Fts5Cursor*)pCtx;
+  int rc = SQLITE_OK;
+  if( CsrFlagTest(pCsr, FTS5CSR_REQUIRE_INST)==0 
+   || SQLITE_OK==(rc = fts5CacheInstArray(pCsr)) 
+  ){
+    if( iIdx<0 || iIdx>=pCsr->nInstCount ){
+      rc = SQLITE_RANGE;
+    }else{
+      *piPhrase = pCsr->aInst[iIdx*3];
+      *piCol = pCsr->aInst[iIdx*3 + 1];
+      *piOff = pCsr->aInst[iIdx*3 + 2];
+    }
+  }
+  return rc;
+}
+
+static sqlite3_int64 fts5ApiRowid(Fts5Context *pCtx){
+  return fts5CursorRowid((Fts5Cursor*)pCtx);
+}
+
+static int fts5ColumnSizeCb(
+  void *pContext,                 /* Pointer to int */
+  int tflags,
+  const char *pUnused,            /* Buffer containing token */
+  int nUnused,                    /* Size of token in bytes */
+  int iUnused1,                   /* Start offset of token */
+  int iUnused2                    /* End offset of token */
+){
+  int *pCnt = (int*)pContext;
+  UNUSED_PARAM2(pUnused, nUnused);
+  UNUSED_PARAM2(iUnused1, iUnused2);
+  if( (tflags & FTS5_TOKEN_COLOCATED)==0 ){
+    (*pCnt)++;
+  }
+  return SQLITE_OK;
+}
+
+static int fts5ApiColumnSize(Fts5Context *pCtx, int iCol, int *pnToken){
+  Fts5Cursor *pCsr = (Fts5Cursor*)pCtx;
+  Fts5FullTable *pTab = (Fts5FullTable*)(pCsr->base.pVtab);
+  Fts5Config *pConfig = pTab->p.pConfig;
+  int rc = SQLITE_OK;
+
+  if( CsrFlagTest(pCsr, FTS5CSR_REQUIRE_DOCSIZE) ){
+    if( pConfig->bColumnsize ){
+      i64 iRowid = fts5CursorRowid(pCsr);
+      rc = sqlite3Fts5StorageDocsize(pTab->pStorage, iRowid, pCsr->aColumnSize);
+    }else if( !pConfig->zContent || pConfig->eContent==FTS5_CONTENT_UNINDEXED ){
+      int i;
+      for(i=0; i<pConfig->nCol; i++){
+        if( pConfig->abUnindexed[i]==0 ){
+          pCsr->aColumnSize[i] = -1;
+        }
+      }
+    }else{
+      int i;
+      rc = fts5SeekCursor(pCsr, 0);
+      for(i=0; rc==SQLITE_OK && i<pConfig->nCol; i++){
+        if( pConfig->abUnindexed[i]==0 ){
+          const char *z = 0; 
+          int n = 0;
+          pCsr->aColumnSize[i] = 0;
+          rc = fts5TextFromStmt(pConfig, pCsr->pStmt, i, &z, &n);
+          if( rc==SQLITE_OK ){
+            rc = sqlite3Fts5Tokenize(pConfig, FTS5_TOKENIZE_AUX, 
+                z, n, (void*)&pCsr->aColumnSize[i], fts5ColumnSizeCb
+            );
+          }
+          sqlite3Fts5ClearLocale(pConfig);
+        }
+      }
+    }
+    CsrFlagClear(pCsr, FTS5CSR_REQUIRE_DOCSIZE);
+  }
+  if( iCol<0 ){
+    int i;
+    *pnToken = 0;
+    for(i=0; i<pConfig->nCol; i++){
+      *pnToken += pCsr->aColumnSize[i];
+    }
+  }else if( iCol<pConfig->nCol ){
+    *pnToken = pCsr->aColumnSize[iCol];
+  }else{
+    *pnToken = 0;
+    rc = SQLITE_RANGE;
+  }
+  return rc;
+}
+
+/*
+** Implementation of the xSetAuxdata() method.
+*/
+static int fts5ApiSetAuxdata(
+  Fts5Context *pCtx,              /* Fts5 context */
+  void *pPtr,                     /* Pointer to save as auxdata */
+  void(*xDelete)(void*)           /* Destructor for pPtr (or NULL) */
+){
+  Fts5Cursor *pCsr = (Fts5Cursor*)pCtx;
+  Fts5Auxdata *pData;
+
+  /* Search through the cursors list of Fts5Auxdata objects for one that
+  ** corresponds to the currently executing auxiliary function.  */
+  for(pData=pCsr->pAuxdata; pData; pData=pData->pNext){
+    if( pData->pAux==pCsr->pAux ) break;
+  }
+
+  if( pData ){
+    if( pData->xDelete ){
+      pData->xDelete(pData->pPtr);
+    }
+  }else{
+    int rc = SQLITE_OK;
+    pData = (Fts5Auxdata*)sqlite3Fts5MallocZero(&rc, sizeof(Fts5Auxdata));
+    if( pData==0 ){
+      if( xDelete ) xDelete(pPtr);
+      return rc;
+    }
+    pData->pAux = pCsr->pAux;
+    pData->pNext = pCsr->pAuxdata;
+    pCsr->pAuxdata = pData;
+  }
+
+  pData->xDelete = xDelete;
+  pData->pPtr = pPtr;
+  return SQLITE_OK;
+}
+
+static void *fts5ApiGetAuxdata(Fts5Context *pCtx, int bClear){
+  Fts5Cursor *pCsr = (Fts5Cursor*)pCtx;
+  Fts5Auxdata *pData;
+  void *pRet = 0;
+
+  for(pData=pCsr->pAuxdata; pData; pData=pData->pNext){
+    if( pData->pAux==pCsr->pAux ) break;
+  }
+
+  if( pData ){
+    pRet = pData->pPtr;
+    if( bClear ){
+      pData->pPtr = 0;
+      pData->xDelete = 0;
+    }
+  }
+
+  return pRet;
+}
+
+static void fts5ApiPhraseNext(
+  Fts5Context *pCtx, 
+  Fts5PhraseIter *pIter, 
+  int *piCol, int *piOff
+){
+  if( pIter->a>=pIter->b ){
+    *piCol = -1;
+    *piOff = -1;
+  }else{
+    int iVal;
+    pIter->a += fts5GetVarint32(pIter->a, iVal);
+    if( iVal==1 ){
+      /* Avoid returning a (*piCol) value that is too large for the table,
+      ** even if the position-list is corrupt. The caller might not be
+      ** expecting it.  */
+      int nCol = ((Fts5Table*)(((Fts5Cursor*)pCtx)->base.pVtab))->pConfig->nCol;
+      pIter->a += fts5GetVarint32(pIter->a, iVal);
+      *piCol = (iVal>=nCol ? nCol-1 : iVal);
+      *piOff = 0;
+      pIter->a += fts5GetVarint32(pIter->a, iVal);
+    }
+    *piOff += (iVal-2);
+  }
+}
+
+static int fts5ApiPhraseFirst(
+  Fts5Context *pCtx, 
+  int iPhrase, 
+  Fts5PhraseIter *pIter, 
+  int *piCol, int *piOff
+){
+  Fts5Cursor *pCsr = (Fts5Cursor*)pCtx;
+  int n;
+  int rc = fts5CsrPoslist(pCsr, iPhrase, &pIter->a, &n);
+  if( rc==SQLITE_OK ){
+    assert( pIter->a || n==0 );
+    pIter->b = (pIter->a ? &pIter->a[n] : 0);
+    *piCol = 0;
+    *piOff = 0;
+    fts5ApiPhraseNext(pCtx, pIter, piCol, piOff);
+  }
+  return rc;
+}
+
+static void fts5ApiPhraseNextColumn(
+  Fts5Context *pCtx, 
+  Fts5PhraseIter *pIter, 
+  int *piCol
+){
+  Fts5Cursor *pCsr = (Fts5Cursor*)pCtx;
+  Fts5Config *pConfig = ((Fts5Table*)(pCsr->base.pVtab))->pConfig;
+
+  if( pConfig->eDetail==FTS5_DETAIL_COLUMNS ){
+    if( pIter->a>=pIter->b ){
+      *piCol = -1;
+    }else{
+      int iIncr;
+      pIter->a += fts5GetVarint32(&pIter->a[0], iIncr);
+      *piCol += (iIncr-2);
+    }
+  }else{
+    while( 1 ){
+      int dummy;
+      if( pIter->a>=pIter->b ){
+        *piCol = -1;
+        return;
+      }
+      if( pIter->a[0]==0x01 ) break;
+      pIter->a += fts5GetVarint32(pIter->a, dummy);
+    }
+    pIter->a += 1 + fts5GetVarint32(&pIter->a[1], *piCol);
+  }
+}
+
+static int fts5ApiPhraseFirstColumn(
+  Fts5Context *pCtx, 
+  int iPhrase, 
+  Fts5PhraseIter *pIter, 
+  int *piCol
+){
+  int rc = SQLITE_OK;
+  Fts5Cursor *pCsr = (Fts5Cursor*)pCtx;
+  Fts5Config *pConfig = ((Fts5Table*)(pCsr->base.pVtab))->pConfig;
+
+  if( pConfig->eDetail==FTS5_DETAIL_COLUMNS ){
+    Fts5Sorter *pSorter = pCsr->pSorter;
+    int n;
+    if( pSorter ){
+      int i1 = (iPhrase==0 ? 0 : pSorter->aIdx[iPhrase-1]);
+      n = pSorter->aIdx[iPhrase] - i1;
+      pIter->a = &pSorter->aPoslist[i1];
+    }else{
+      rc = sqlite3Fts5ExprPhraseCollist(pCsr->pExpr, iPhrase, &pIter->a, &n);
+    }
+    if( rc==SQLITE_OK ){
+      assert( pIter->a || n==0 );
+      pIter->b = (pIter->a ? &pIter->a[n] : 0);
+      *piCol = 0;
+      fts5ApiPhraseNextColumn(pCtx, pIter, piCol);
+    }
+  }else{
+    int n;
+    rc = fts5CsrPoslist(pCsr, iPhrase, &pIter->a, &n);
+    if( rc==SQLITE_OK ){
+      assert( pIter->a || n==0 );
+      pIter->b = (pIter->a ? &pIter->a[n] : 0);
+      if( n<=0 ){
+        *piCol = -1;
+      }else if( pIter->a[0]==0x01 ){
+        pIter->a += 1 + fts5GetVarint32(&pIter->a[1], *piCol);
+      }else{
+        *piCol = 0;
+      }
+    }
+  }
+
+  return rc;
+}
+
+/*
+** xQueryToken() API implemenetation.
+*/
+static int fts5ApiQueryToken(
+  Fts5Context* pCtx, 
+  int iPhrase, 
+  int iToken, 
+  const char **ppOut, 
+  int *pnOut
+){
+  Fts5Cursor *pCsr = (Fts5Cursor*)pCtx;
+  return sqlite3Fts5ExprQueryToken(pCsr->pExpr, iPhrase, iToken, ppOut, pnOut);
+}
+
+/*
+** xInstToken() API implemenetation.
+*/
+static int fts5ApiInstToken(
+  Fts5Context *pCtx,
+  int iIdx, 
+  int iToken,
+  const char **ppOut, int *pnOut
+){
+  Fts5Cursor *pCsr = (Fts5Cursor*)pCtx;
+  int rc = SQLITE_OK;
+  if( CsrFlagTest(pCsr, FTS5CSR_REQUIRE_INST)==0 
+   || SQLITE_OK==(rc = fts5CacheInstArray(pCsr)) 
+  ){
+    if( iIdx<0 || iIdx>=pCsr->nInstCount ){
+      rc = SQLITE_RANGE;
+    }else{
+      int iPhrase = pCsr->aInst[iIdx*3];
+      int iCol = pCsr->aInst[iIdx*3 + 1];
+      int iOff = pCsr->aInst[iIdx*3 + 2];
+      i64 iRowid = fts5CursorRowid(pCsr);
+      rc = sqlite3Fts5ExprInstToken(
+          pCsr->pExpr, iRowid, iPhrase, iCol, iOff, iToken, ppOut, pnOut
+      );
+    }
+  }
+  return rc;
+}
+
+
+static int fts5ApiQueryPhrase(Fts5Context*, int, void*, 
+    int(*)(const Fts5ExtensionApi*, Fts5Context*, void*)
+);
+
+/*
+** The xColumnLocale() API.
+*/
+static int fts5ApiColumnLocale(
+  Fts5Context *pCtx, 
+  int iCol, 
+  const char **pzLocale, 
+  int *pnLocale
+){
+  int rc = SQLITE_OK;
+  Fts5Cursor *pCsr = (Fts5Cursor*)pCtx;
+  Fts5Config *pConfig = ((Fts5Table*)(pCsr->base.pVtab))->pConfig;
+
+  *pzLocale = 0;
+  *pnLocale = 0;
+
+  assert( pCsr->ePlan!=FTS5_PLAN_SPECIAL );
+  if( iCol<0 || iCol>=pConfig->nCol ){
+    rc = SQLITE_RANGE;
+  }else if(
+      pConfig->abUnindexed[iCol]==0
+   && 0==fts5IsContentless((Fts5FullTable*)pCsr->base.pVtab, 1)
+   && pConfig->bLocale
+  ){
+    rc = fts5SeekCursor(pCsr, 0);
+    if( rc==SQLITE_OK ){
+      const char *zDummy = 0;
+      int nDummy = 0;
+      rc = fts5TextFromStmt(pConfig, pCsr->pStmt, iCol, &zDummy, &nDummy);
+      if( rc==SQLITE_OK ){
+        *pzLocale = pConfig->t.pLocale;
+        *pnLocale = pConfig->t.nLocale;
+      }
+      sqlite3Fts5ClearLocale(pConfig);
+    }
+  }
+
+  return rc;
+}
+
+static const Fts5ExtensionApi sFts5Api = {
+  4,                            /* iVersion */
+  fts5ApiUserData,
+  fts5ApiColumnCount,
+  fts5ApiRowCount,
+  fts5ApiColumnTotalSize,
+  fts5ApiTokenize,
+  fts5ApiPhraseCount,
+  fts5ApiPhraseSize,
+  fts5ApiInstCount,
+  fts5ApiInst,
+  fts5ApiRowid,
+  fts5ApiColumnText,
+  fts5ApiColumnSize,
+  fts5ApiQueryPhrase,
+  fts5ApiSetAuxdata,
+  fts5ApiGetAuxdata,
+  fts5ApiPhraseFirst,
+  fts5ApiPhraseNext,
+  fts5ApiPhraseFirstColumn,
+  fts5ApiPhraseNextColumn,
+  fts5ApiQueryToken,
+  fts5ApiInstToken,
+  fts5ApiColumnLocale,
+  fts5ApiTokenize_v2
+};
+
+/*
+** Implementation of API function xQueryPhrase().
+*/
+static int fts5ApiQueryPhrase(
+  Fts5Context *pCtx, 
+  int iPhrase, 
+  void *pUserData,
+  int(*xCallback)(const Fts5ExtensionApi*, Fts5Context*, void*)
+){
+  Fts5Cursor *pCsr = (Fts5Cursor*)pCtx;
+  Fts5FullTable *pTab = (Fts5FullTable*)(pCsr->base.pVtab);
+  int rc;
+  Fts5Cursor *pNew = 0;
+
+  rc = fts5OpenMethod(pCsr->base.pVtab, (sqlite3_vtab_cursor**)&pNew);
+  if( rc==SQLITE_OK ){
+    pNew->ePlan = FTS5_PLAN_MATCH;
+    pNew->iFirstRowid = SMALLEST_INT64;
+    pNew->iLastRowid = LARGEST_INT64;
+    pNew->base.pVtab = (sqlite3_vtab*)pTab;
+    rc = sqlite3Fts5ExprClonePhrase(pCsr->pExpr, iPhrase, &pNew->pExpr);
+  }
+
+  if( rc==SQLITE_OK ){
+    for(rc = fts5CursorFirst(pTab, pNew, 0);
+        rc==SQLITE_OK && CsrFlagTest(pNew, FTS5CSR_EOF)==0;
+        rc = fts5NextMethod((sqlite3_vtab_cursor*)pNew)
+    ){
+      rc = xCallback(&sFts5Api, (Fts5Context*)pNew, pUserData);
+      if( rc!=SQLITE_OK ){
+        if( rc==SQLITE_DONE ) rc = SQLITE_OK;
+        break;
+      }
+    }
+  }
+
+  fts5CloseMethod((sqlite3_vtab_cursor*)pNew);
+  return rc;
+}
+
+static void fts5ApiInvoke(
+  Fts5Auxiliary *pAux,
+  Fts5Cursor *pCsr,
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  assert( pCsr->pAux==0 );
+  assert( pCsr->ePlan!=FTS5_PLAN_SPECIAL );
+  pCsr->pAux = pAux;
+  pAux->xFunc(&sFts5Api, (Fts5Context*)pCsr, context, argc, argv);
+  pCsr->pAux = 0;
+}
+
+static Fts5Cursor *fts5CursorFromCsrid(Fts5Global *pGlobal, i64 iCsrId){
+  Fts5Cursor *pCsr;
+  for(pCsr=pGlobal->pCsr; pCsr; pCsr=pCsr->pNext){
+    if( pCsr->iCsrId==iCsrId ) break;
+  }
+  return pCsr;
+}
+
+/*
+** Parameter zFmt is a printf() style formatting string. This function
+** formats it using the trailing arguments and returns the result as
+** an error message to the context passed as the first argument.
+*/
+static void fts5ResultError(sqlite3_context *pCtx, const char *zFmt, ...){
+  char *zErr = 0;
+  va_list ap;
+  va_start(ap, zFmt);
+  zErr = sqlite3_vmprintf(zFmt, ap);
+  sqlite3_result_error(pCtx, zErr, -1);
+  sqlite3_free(zErr);
+  va_end(ap);
+}
+
+static void fts5ApiCallback(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+
+  Fts5Auxiliary *pAux;
+  Fts5Cursor *pCsr;
+  i64 iCsrId;
+
+  assert( argc>=1 );
+  pAux = (Fts5Auxiliary*)sqlite3_user_data(context);
+  iCsrId = sqlite3_value_int64(argv[0]);
+
+  pCsr = fts5CursorFromCsrid(pAux->pGlobal, iCsrId);
+  if( pCsr==0 || (pCsr->ePlan==0 || pCsr->ePlan==FTS5_PLAN_SPECIAL) ){
+    fts5ResultError(context, "no such cursor: %lld", iCsrId);
+  }else{
+    sqlite3_vtab *pTab = pCsr->base.pVtab;
+    fts5ApiInvoke(pAux, pCsr, context, argc-1, &argv[1]);
+    sqlite3_free(pTab->zErrMsg);
+    pTab->zErrMsg = 0;
+  }
+}
+
+
+/*
+** Given cursor id iId, return a pointer to the corresponding Fts5Table 
+** object. Or NULL If the cursor id does not exist.
+*/
+Fts5Table *sqlite3Fts5TableFromCsrid(
+  Fts5Global *pGlobal,            /* FTS5 global context for db handle */
+  i64 iCsrId                      /* Id of cursor to find */
+){
+  Fts5Cursor *pCsr;
+  pCsr = fts5CursorFromCsrid(pGlobal, iCsrId);
+  if( pCsr ){
+    return (Fts5Table*)pCsr->base.pVtab;
+  }
+  return 0;
+}
+
+/*
+** Return a "position-list blob" corresponding to the current position of
+** cursor pCsr via sqlite3_result_blob(). A position-list blob contains
+** the current position-list for each phrase in the query associated with
+** cursor pCsr.
+**
+** A position-list blob begins with (nPhrase-1) varints, where nPhrase is
+** the number of phrases in the query. Following the varints are the
+** concatenated position lists for each phrase, in order.
+**
+** The first varint (if it exists) contains the size of the position list
+** for phrase 0. The second (same disclaimer) contains the size of position
+** list 1. And so on. There is no size field for the final position list,
+** as it can be derived from the total size of the blob.
+*/
+static int fts5PoslistBlob(sqlite3_context *pCtx, Fts5Cursor *pCsr){
+  int i;
+  int rc = SQLITE_OK;
+  int nPhrase = sqlite3Fts5ExprPhraseCount(pCsr->pExpr);
+  Fts5Buffer val;
+
+  memset(&val, 0, sizeof(Fts5Buffer));
+  switch( ((Fts5Table*)(pCsr->base.pVtab))->pConfig->eDetail ){
+    case FTS5_DETAIL_FULL:
+
+      /* Append the varints */
+      for(i=0; i<(nPhrase-1); i++){
+        const u8 *dummy;
+        int nByte = sqlite3Fts5ExprPoslist(pCsr->pExpr, i, &dummy);
+        sqlite3Fts5BufferAppendVarint(&rc, &val, nByte);
+      }
+
+      /* Append the position lists */
+      for(i=0; i<nPhrase; i++){
+        const u8 *pPoslist;
+        int nPoslist;
+        nPoslist = sqlite3Fts5ExprPoslist(pCsr->pExpr, i, &pPoslist);
+        sqlite3Fts5BufferAppendBlob(&rc, &val, nPoslist, pPoslist);
+      }
+      break;
+
+    case FTS5_DETAIL_COLUMNS:
+
+      /* Append the varints */
+      for(i=0; rc==SQLITE_OK && i<(nPhrase-1); i++){
+        const u8 *dummy;
+        int nByte;
+        rc = sqlite3Fts5ExprPhraseCollist(pCsr->pExpr, i, &dummy, &nByte);
+        sqlite3Fts5BufferAppendVarint(&rc, &val, nByte);
+      }
+
+      /* Append the position lists */
+      for(i=0; rc==SQLITE_OK && i<nPhrase; i++){
+        const u8 *pPoslist;
+        int nPoslist;
+        rc = sqlite3Fts5ExprPhraseCollist(pCsr->pExpr, i, &pPoslist, &nPoslist);
+        sqlite3Fts5BufferAppendBlob(&rc, &val, nPoslist, pPoslist);
+      }
+      break;
+
+    default:
+      break;
+  }
+
+  sqlite3_result_blob(pCtx, val.p, val.n, sqlite3_free);
+  return rc;
+}
+
+/* 
+** This is the xColumn method, called by SQLite to request a value from
+** the row that the supplied cursor currently points to.
+*/
+static int fts5ColumnMethod(
+  sqlite3_vtab_cursor *pCursor,   /* Cursor to retrieve value from */
+  sqlite3_context *pCtx,          /* Context for sqlite3_result_xxx() calls */
+  int iCol                        /* Index of column to read value from */
+){
+  Fts5FullTable *pTab = (Fts5FullTable*)(pCursor->pVtab);
+  Fts5Config *pConfig = pTab->p.pConfig;
+  Fts5Cursor *pCsr = (Fts5Cursor*)pCursor;
+  int rc = SQLITE_OK;
+  
+  assert( CsrFlagTest(pCsr, FTS5CSR_EOF)==0 );
+
+  if( pCsr->ePlan==FTS5_PLAN_SPECIAL ){
+    if( iCol==pConfig->nCol ){
+      sqlite3_result_int64(pCtx, pCsr->iSpecial);
+    }
+  }else
+
+  if( iCol==pConfig->nCol ){
+    /* User is requesting the value of the special column with the same name
+    ** as the table. Return the cursor integer id number. This value is only
+    ** useful in that it may be passed as the first argument to an FTS5
+    ** auxiliary function.  */
+    sqlite3_result_int64(pCtx, pCsr->iCsrId);
+  }else if( iCol==pConfig->nCol+1 ){
+    /* The value of the "rank" column. */
+
+    if( pCsr->ePlan==FTS5_PLAN_SOURCE ){
+      fts5PoslistBlob(pCtx, pCsr);
+    }else if( 
+        pCsr->ePlan==FTS5_PLAN_MATCH
+     || pCsr->ePlan==FTS5_PLAN_SORTED_MATCH
+    ){
+      if( pCsr->pRank || SQLITE_OK==(rc = fts5FindRankFunction(pCsr)) ){
+        fts5ApiInvoke(pCsr->pRank, pCsr, pCtx, pCsr->nRankArg, pCsr->apRankArg);
+      }
+    }
+  }else{
+    if( !sqlite3_vtab_nochange(pCtx) && pConfig->eContent!=FTS5_CONTENT_NONE ){
+      pConfig->pzErrmsg = &pTab->p.base.zErrMsg;
+      rc = fts5SeekCursor(pCsr, 1);
+      if( rc==SQLITE_OK ){
+        sqlite3_value *pVal = sqlite3_column_value(pCsr->pStmt, iCol+1);
+        if( pConfig->bLocale 
+         && pConfig->eContent==FTS5_CONTENT_EXTERNAL 
+         && sqlite3Fts5IsLocaleValue(pConfig, pVal)
+        ){
+          const char *z = 0;
+          int n = 0;
+          rc = fts5TextFromStmt(pConfig, pCsr->pStmt, iCol, &z, &n);
+          if( rc==SQLITE_OK ){
+            sqlite3_result_text(pCtx, z, n, SQLITE_TRANSIENT);
+          }
+          sqlite3Fts5ClearLocale(pConfig);
+        }else{
+          sqlite3_result_value(pCtx, pVal);
+        }
+      }
+
+      pConfig->pzErrmsg = 0;
+    }
+  }
+
+  return rc;
+}
+
+
+/*
+** This routine implements the xFindFunction method for the FTS3
+** virtual table.
+*/
+static int fts5FindFunctionMethod(
+  sqlite3_vtab *pVtab,            /* Virtual table handle */
+  int nUnused,                    /* Number of SQL function arguments */
+  const char *zName,              /* Name of SQL function */
+  void (**pxFunc)(sqlite3_context*,int,sqlite3_value**), /* OUT: Result */
+  void **ppArg                    /* OUT: User data for *pxFunc */
+){
+  Fts5FullTable *pTab = (Fts5FullTable*)pVtab;
+  Fts5Auxiliary *pAux;
+
+  UNUSED_PARAM(nUnused);
+  pAux = fts5FindAuxiliary(pTab, zName);
+  if( pAux ){
+    *pxFunc = fts5ApiCallback;
+    *ppArg = (void*)pAux;
+    return 1;
+  }
+
+  /* No function of the specified name was found. Return 0. */
+  return 0;
+}
+
+/*
+** Implementation of FTS5 xRename method. Rename an fts5 table.
+*/
+static int fts5RenameMethod(
+  sqlite3_vtab *pVtab,            /* Virtual table handle */
+  const char *zName               /* New name of table */
+){
+  int rc;
+  Fts5FullTable *pTab = (Fts5FullTable*)pVtab;
+  rc = sqlite3Fts5StorageRename(pTab->pStorage, zName);
+  return rc;
+}
+
+int sqlite3Fts5FlushToDisk(Fts5Table *pTab){
+  fts5TripCursors((Fts5FullTable*)pTab);
+  return sqlite3Fts5StorageSync(((Fts5FullTable*)pTab)->pStorage);
+}
+
+/*
+** The xSavepoint() method.
+**
+** Flush the contents of the pending-terms table to disk.
+*/
+static int fts5SavepointMethod(sqlite3_vtab *pVtab, int iSavepoint){
+  Fts5FullTable *pTab = (Fts5FullTable*)pVtab;
+  int rc = SQLITE_OK;
+
+  fts5CheckTransactionState(pTab, FTS5_SAVEPOINT, iSavepoint);
+  rc = sqlite3Fts5FlushToDisk((Fts5Table*)pVtab);
+  if( rc==SQLITE_OK ){
+    pTab->iSavepoint = iSavepoint+1;
+  }
+  return rc;
+}
+
+/*
+** The xRelease() method.
+**
+** This is a no-op.
+*/
+static int fts5ReleaseMethod(sqlite3_vtab *pVtab, int iSavepoint){
+  Fts5FullTable *pTab = (Fts5FullTable*)pVtab;
+  int rc = SQLITE_OK;
+  fts5CheckTransactionState(pTab, FTS5_RELEASE, iSavepoint);
+  if( (iSavepoint+1)<pTab->iSavepoint ){
+    rc = sqlite3Fts5FlushToDisk(&pTab->p);
+    if( rc==SQLITE_OK ){
+      pTab->iSavepoint = iSavepoint;
+    }
+  }
+  return rc;
+}
+
+/*
+** The xRollbackTo() method.
+**
+** Discard the contents of the pending terms table.
+*/
+static int fts5RollbackToMethod(sqlite3_vtab *pVtab, int iSavepoint){
+  Fts5FullTable *pTab = (Fts5FullTable*)pVtab;
+  int rc = SQLITE_OK;
+  fts5CheckTransactionState(pTab, FTS5_ROLLBACKTO, iSavepoint);
+  fts5TripCursors(pTab);
+  if( (iSavepoint+1)<=pTab->iSavepoint ){
+    pTab->p.pConfig->pgsz = 0;
+    rc = sqlite3Fts5StorageRollback(pTab->pStorage);
+  }
+  return rc;
+}
+
+/*
+** Register a new auxiliary function with global context pGlobal.
+*/
+static int fts5CreateAux(
+  fts5_api *pApi,                 /* Global context (one per db handle) */
+  const char *zName,              /* Name of new function */
+  void *pUserData,                /* User data for aux. function */
+  fts5_extension_function xFunc,  /* Aux. function implementation */
+  void(*xDestroy)(void*)          /* Destructor for pUserData */
+){
+  Fts5Global *pGlobal = (Fts5Global*)pApi;
+  int rc = sqlite3_overload_function(pGlobal->db, zName, -1);
+  if( rc==SQLITE_OK ){
+    Fts5Auxiliary *pAux;
+    sqlite3_int64 nName;            /* Size of zName in bytes, including \0 */
+    sqlite3_int64 nByte;            /* Bytes of space to allocate */
+
+    nName = strlen(zName) + 1;
+    nByte = sizeof(Fts5Auxiliary) + nName;
+    pAux = (Fts5Auxiliary*)sqlite3_malloc64(nByte);
+    if( pAux ){
+      memset(pAux, 0, (size_t)nByte);
+      pAux->zFunc = (char*)&pAux[1];
+      memcpy(pAux->zFunc, zName, nName);
+      pAux->pGlobal = pGlobal;
+      pAux->pUserData = pUserData;
+      pAux->xFunc = xFunc;
+      pAux->xDestroy = xDestroy;
+      pAux->pNext = pGlobal->pAux;
+      pGlobal->pAux = pAux;
+    }else{
+      rc = SQLITE_NOMEM;
+    }
+  }
+
+  return rc;
+}
+
+/*
+** This function is used by xCreateTokenizer_v2() and xCreateTokenizer().
+** It allocates and partially populates a new Fts5TokenizerModule object.
+** The new object is already linked into the Fts5Global context before
+** returning.
+**
+** If successful, SQLITE_OK is returned and a pointer to the new
+** Fts5TokenizerModule object returned via output parameter (*ppNew). All
+** that is required is for the caller to fill in the methods in
+** Fts5TokenizerModule.x1 and x2, and to set Fts5TokenizerModule.bV2Native
+** as appropriate.
+**
+** If an error occurs, an SQLite error code is returned and the final value
+** of (*ppNew) undefined.
+*/
+static int fts5NewTokenizerModule(
+  Fts5Global *pGlobal,            /* Global context (one per db handle) */
+  const char *zName,              /* Name of new function */
+  void *pUserData,                /* User data for aux. function */
+  void(*xDestroy)(void*),         /* Destructor for pUserData */
+  Fts5TokenizerModule **ppNew
+){
+  int rc = SQLITE_OK;
+  Fts5TokenizerModule *pNew;
+  sqlite3_int64 nName;          /* Size of zName and its \0 terminator */
+  sqlite3_int64 nByte;          /* Bytes of space to allocate */
+
+  nName = strlen(zName) + 1;
+  nByte = sizeof(Fts5TokenizerModule) + nName;
+  *ppNew = pNew = (Fts5TokenizerModule*)sqlite3Fts5MallocZero(&rc, nByte);
+  if( pNew ){
+    pNew->zName = (char*)&pNew[1];
+    memcpy(pNew->zName, zName, nName);
+    pNew->pUserData = pUserData;
+    pNew->xDestroy = xDestroy;
+    pNew->pNext = pGlobal->pTok;
+    pGlobal->pTok = pNew;
+    if( pNew->pNext==0 ){
+      pGlobal->pDfltTok = pNew;
+    }
+  }
+
+  return rc;
+}
+
+/*
+** An instance of this type is used as the Fts5Tokenizer object for
+** wrapper tokenizers - those that provide access to a v1 tokenizer via
+** the fts5_tokenizer_v2 API, and those that provide access to a v2 tokenizer
+** via the fts5_tokenizer API.
+*/
+typedef struct Fts5VtoVTokenizer Fts5VtoVTokenizer;
+struct Fts5VtoVTokenizer {
+  int bV2Native;                  /* True if v2 native tokenizer */
+  fts5_tokenizer x1;              /* Tokenizer functions */
+  fts5_tokenizer_v2 x2;           /* V2 tokenizer functions */
+  Fts5Tokenizer *pReal;
+};
+
+/*
+** Create a wrapper tokenizer. The context argument pCtx points to the
+** Fts5TokenizerModule object.
+*/
+static int fts5VtoVCreate(
+  void *pCtx, 
+  const char **azArg, 
+  int nArg, 
+  Fts5Tokenizer **ppOut
+){
+  Fts5TokenizerModule *pMod = (Fts5TokenizerModule*)pCtx;
+  Fts5VtoVTokenizer *pNew = 0;
+  int rc = SQLITE_OK;
+
+  pNew = (Fts5VtoVTokenizer*)sqlite3Fts5MallocZero(&rc, sizeof(*pNew));
+  if( rc==SQLITE_OK ){
+    pNew->x1 = pMod->x1;
+    pNew->x2 = pMod->x2;
+    pNew->bV2Native = pMod->bV2Native;
+    if( pMod->bV2Native ){
+      rc = pMod->x2.xCreate(pMod->pUserData, azArg, nArg, &pNew->pReal);
+    }else{
+      rc = pMod->x1.xCreate(pMod->pUserData, azArg, nArg, &pNew->pReal);
+    }
+    if( rc!=SQLITE_OK ){
+      sqlite3_free(pNew);
+      pNew = 0;
+    }
+  }
+
+  *ppOut = (Fts5Tokenizer*)pNew;
+  return rc;
+}
+
+/*
+** Delete an Fts5VtoVTokenizer wrapper tokenizer. 
+*/
+static void fts5VtoVDelete(Fts5Tokenizer *pTok){
+  Fts5VtoVTokenizer *p = (Fts5VtoVTokenizer*)pTok;
+  if( p ){
+    if( p->bV2Native ){
+      p->x2.xDelete(p->pReal);
+    }else{
+      p->x1.xDelete(p->pReal);
+    }
+    sqlite3_free(p);
+  }
+}
+
+
+/*
+** xTokenizer method for a wrapper tokenizer that offers the v1 interface
+** (no support for locales).
+*/
+static int fts5V1toV2Tokenize(
+  Fts5Tokenizer *pTok, 
+  void *pCtx, int flags,
+  const char *pText, int nText, 
+  int (*xToken)(void*, int, const char*, int, int, int)
+){
+  Fts5VtoVTokenizer *p = (Fts5VtoVTokenizer*)pTok;
+  assert( p->bV2Native );
+  return p->x2.xTokenize(p->pReal, pCtx, flags, pText, nText, 0, 0, xToken);
+}
+
+/*
+** xTokenizer method for a wrapper tokenizer that offers the v2 interface
+** (with locale support).
+*/
+static int fts5V2toV1Tokenize(
+  Fts5Tokenizer *pTok, 
+  void *pCtx, int flags,
+  const char *pText, int nText, 
+  const char *pLocale, int nLocale, 
+  int (*xToken)(void*, int, const char*, int, int, int)
+){
+  Fts5VtoVTokenizer *p = (Fts5VtoVTokenizer*)pTok;
+  assert( p->bV2Native==0 );
+  UNUSED_PARAM2(pLocale,nLocale);
+  return p->x1.xTokenize(p->pReal, pCtx, flags, pText, nText, xToken);
+}
+
+/*
+** Register a new tokenizer. This is the implementation of the 
+** fts5_api.xCreateTokenizer_v2() method.
+*/
+static int fts5CreateTokenizer_v2(
+  fts5_api *pApi,                 /* Global context (one per db handle) */
+  const char *zName,              /* Name of new function */
+  void *pUserData,                /* User data for aux. function */
+  fts5_tokenizer_v2 *pTokenizer,  /* Tokenizer implementation */
+  void(*xDestroy)(void*)          /* Destructor for pUserData */
+){
+  Fts5Global *pGlobal = (Fts5Global*)pApi;
+  int rc = SQLITE_OK;
+
+  if( pTokenizer->iVersion>2 ){
+    rc = SQLITE_ERROR;
+  }else{
+    Fts5TokenizerModule *pNew = 0;
+    rc = fts5NewTokenizerModule(pGlobal, zName, pUserData, xDestroy, &pNew);
+    if( pNew ){
+      pNew->x2 = *pTokenizer;
+      pNew->bV2Native = 1;
+      pNew->x1.xCreate = fts5VtoVCreate;
+      pNew->x1.xTokenize = fts5V1toV2Tokenize;
+      pNew->x1.xDelete = fts5VtoVDelete;
+    }
+  }
+
+  return rc;
+}
+
+/*
+** The fts5_api.xCreateTokenizer() method.
+*/
+static int fts5CreateTokenizer(
+  fts5_api *pApi,                 /* Global context (one per db handle) */
+  const char *zName,              /* Name of new function */
+  void *pUserData,                /* User data for aux. function */
+  fts5_tokenizer *pTokenizer,     /* Tokenizer implementation */
+  void(*xDestroy)(void*)          /* Destructor for pUserData */
+){
+  Fts5TokenizerModule *pNew = 0;
+  int rc = SQLITE_OK;
+
+  rc = fts5NewTokenizerModule(
+      (Fts5Global*)pApi, zName, pUserData, xDestroy, &pNew
+  );
+  if( pNew ){
+    pNew->x1 = *pTokenizer;
+    pNew->x2.xCreate = fts5VtoVCreate;
+    pNew->x2.xTokenize = fts5V2toV1Tokenize;
+    pNew->x2.xDelete = fts5VtoVDelete;
+  }
+  return rc;
+}
+
+/*
+** Search the global context passed as the first argument for a tokenizer
+** module named zName. If found, return a pointer to the Fts5TokenizerModule
+** object. Otherwise, return NULL.
+*/
+static Fts5TokenizerModule *fts5LocateTokenizer(
+  Fts5Global *pGlobal,            /* Global (one per db handle) object */
+  const char *zName               /* Name of tokenizer module to find */
+){
+  Fts5TokenizerModule *pMod = 0;
+
+  if( zName==0 ){
+    pMod = pGlobal->pDfltTok;
+  }else{
+    for(pMod=pGlobal->pTok; pMod; pMod=pMod->pNext){
+      if( sqlite3_stricmp(zName, pMod->zName)==0 ) break;
+    }
+  }
+
+  return pMod;
+}
+
+/*
+** Find a tokenizer. This is the implementation of the 
+** fts5_api.xFindTokenizer_v2() method.
+*/
+static int fts5FindTokenizer_v2(
+  fts5_api *pApi,                 /* Global context (one per db handle) */
+  const char *zName,              /* Name of tokenizer */
+  void **ppUserData,
+  fts5_tokenizer_v2 **ppTokenizer /* Populate this object */
+){
+  int rc = SQLITE_OK;
+  Fts5TokenizerModule *pMod;
+
+  pMod = fts5LocateTokenizer((Fts5Global*)pApi, zName);
+  if( pMod ){
+    if( pMod->bV2Native ){
+      *ppUserData = pMod->pUserData;
+    }else{
+      *ppUserData = (void*)pMod;
+    }
+    *ppTokenizer = &pMod->x2;
+  }else{
+    *ppTokenizer = 0;
+    *ppUserData = 0;
+    rc = SQLITE_ERROR;
+  }
+
+  return rc;
+}
+
+/*
+** Find a tokenizer. This is the implementation of the 
+** fts5_api.xFindTokenizer() method.
+*/
+static int fts5FindTokenizer(
+  fts5_api *pApi,                 /* Global context (one per db handle) */
+  const char *zName,              /* Name of new function */
+  void **ppUserData,
+  fts5_tokenizer *pTokenizer      /* Populate this object */
+){
+  int rc = SQLITE_OK;
+  Fts5TokenizerModule *pMod;
+
+  pMod = fts5LocateTokenizer((Fts5Global*)pApi, zName);
+  if( pMod ){
+    if( pMod->bV2Native==0 ){
+      *ppUserData = pMod->pUserData;
+    }else{
+      *ppUserData = (void*)pMod;
+    }
+    *pTokenizer = pMod->x1;
+  }else{
+    memset(pTokenizer, 0, sizeof(*pTokenizer));
+    *ppUserData = 0;
+    rc = SQLITE_ERROR;
+  }
+
+  return rc;
+}
+
+/*
+** Attempt to instantiate the tokenizer.
+*/
+int sqlite3Fts5LoadTokenizer(Fts5Config *pConfig){
+  const char **azArg = pConfig->t.azArg;
+  const int nArg = pConfig->t.nArg;
+  Fts5TokenizerModule *pMod = 0;
+  int rc = SQLITE_OK;
+
+  pMod = fts5LocateTokenizer(pConfig->pGlobal, nArg==0 ? 0 : azArg[0]);
+  if( pMod==0 ){
+    assert( nArg>0 );
+    rc = SQLITE_ERROR;
+    sqlite3Fts5ConfigErrmsg(pConfig, "no such tokenizer: %s", azArg[0]);
+  }else{
+    int (*xCreate)(void*, const char**, int, Fts5Tokenizer**) = 0;
+    if( pMod->bV2Native ){
+      xCreate = pMod->x2.xCreate;
+      pConfig->t.pApi2 = &pMod->x2;
+    }else{
+      pConfig->t.pApi1 = &pMod->x1;
+      xCreate = pMod->x1.xCreate;
+    }
+    
+    rc = xCreate(pMod->pUserData, 
+        (azArg?&azArg[1]:0), (nArg?nArg-1:0), &pConfig->t.pTok
+    );
+
+    if( rc!=SQLITE_OK ){
+      if( rc!=SQLITE_NOMEM ){
+        sqlite3Fts5ConfigErrmsg(pConfig, "error in tokenizer constructor");
+      }
+    }else if( pMod->bV2Native==0 ){
+      pConfig->t.ePattern = sqlite3Fts5TokenizerPattern(
+          pMod->x1.xCreate, pConfig->t.pTok
+      );
+    }
+  }
+
+  if( rc!=SQLITE_OK ){
+    pConfig->t.pApi1 = 0;
+    pConfig->t.pApi2 = 0;
+    pConfig->t.pTok = 0;
+  }
+
+  return rc;
+}
+
+
+/*
+** xDestroy callback passed to sqlite3_create_module(). This is invoked
+** when the db handle is being closed. Free memory associated with 
+** tokenizers and aux functions registered with this db handle.
+*/
+static void fts5ModuleDestroy(void *pCtx){
+  Fts5TokenizerModule *pTok, *pNextTok;
+  Fts5Auxiliary *pAux, *pNextAux;
+  Fts5Global *pGlobal = (Fts5Global*)pCtx;
+
+  for(pAux=pGlobal->pAux; pAux; pAux=pNextAux){
+    pNextAux = pAux->pNext;
+    if( pAux->xDestroy ) pAux->xDestroy(pAux->pUserData);
+    sqlite3_free(pAux);
+  }
+
+  for(pTok=pGlobal->pTok; pTok; pTok=pNextTok){
+    pNextTok = pTok->pNext;
+    if( pTok->xDestroy ) pTok->xDestroy(pTok->pUserData);
+    sqlite3_free(pTok);
+  }
+
+  sqlite3_free(pGlobal);
+}
+
+/*
+** Implementation of the fts5() function used by clients to obtain the
+** API pointer.
+*/
+static void fts5Fts5Func(
+  sqlite3_context *pCtx,          /* Function call context */
+  int nArg,                       /* Number of args */
+  sqlite3_value **apArg           /* Function arguments */
+){
+  Fts5Global *pGlobal = (Fts5Global*)sqlite3_user_data(pCtx);
+  fts5_api **ppApi;
+  UNUSED_PARAM(nArg);
+  assert( nArg==1 );
+  ppApi = (fts5_api**)sqlite3_value_pointer(apArg[0], "fts5_api_ptr");
+  if( ppApi ) *ppApi = &pGlobal->api;
+}
+
+/*
+** Implementation of fts5_source_id() function.
+*/
+static void fts5SourceIdFunc(
+  sqlite3_context *pCtx,          /* Function call context */
+  int nArg,                       /* Number of args */
+  sqlite3_value **apUnused        /* Function arguments */
+){
+  assert( nArg==0 );
+  UNUSED_PARAM2(nArg, apUnused);
+  sqlite3_result_text(pCtx, "--FTS5-SOURCE-ID--", -1, SQLITE_TRANSIENT);
+}
+
+/*
+** Implementation of fts5_locale(LOCALE, TEXT) function.
+**
+** If parameter LOCALE is NULL, or a zero-length string, then a copy of
+** TEXT is returned. Otherwise, both LOCALE and TEXT are interpreted as
+** text, and the value returned is a blob consisting of:
+**
+**     * The 4 bytes 0x00, 0xE0, 0xB2, 0xEb (FTS5_LOCALE_HEADER).
+**     * The LOCALE, as utf-8 text, followed by
+**     * 0x00, followed by
+**     * The TEXT, as utf-8 text.
+**
+** There is no final nul-terminator following the TEXT value.
+*/
+static void fts5LocaleFunc(
+  sqlite3_context *pCtx,          /* Function call context */
+  int nArg,                       /* Number of args */
+  sqlite3_value **apArg           /* Function arguments */
+){
+  const char *zLocale = 0;
+  int nLocale = 0;
+  const char *zText = 0;
+  int nText = 0;
+
+  assert( nArg==2 );
+  UNUSED_PARAM(nArg);
+
+  zLocale = (const char*)sqlite3_value_text(apArg[0]);
+  nLocale = sqlite3_value_bytes(apArg[0]);
+
+  zText = (const char*)sqlite3_value_text(apArg[1]);
+  nText = sqlite3_value_bytes(apArg[1]);
+
+  if( zLocale==0 || zLocale[0]=='\0' ){
+    sqlite3_result_text(pCtx, zText, nText, SQLITE_TRANSIENT);
+  }else{
+    Fts5Global *p = (Fts5Global*)sqlite3_user_data(pCtx);
+    u8 *pBlob = 0;
+    u8 *pCsr = 0;
+    int nBlob = 0;
+
+    nBlob = FTS5_LOCALE_HDR_SIZE + nLocale + 1 + nText;
+    pBlob = (u8*)sqlite3_malloc(nBlob);
+    if( pBlob==0 ){
+      sqlite3_result_error_nomem(pCtx);
+      return;
+    }
+
+    pCsr = pBlob;
+    memcpy(pCsr, (const u8*)p->aLocaleHdr, FTS5_LOCALE_HDR_SIZE);
+    pCsr += FTS5_LOCALE_HDR_SIZE;
+    memcpy(pCsr, zLocale, nLocale);
+    pCsr += nLocale;
+    (*pCsr++) = 0x00;
+    if( zText ) memcpy(pCsr, zText, nText);
+    assert( &pCsr[nText]==&pBlob[nBlob] );
+
+    sqlite3_result_blob(pCtx, pBlob, nBlob, sqlite3_free);
+  }
+}
+
+/*
+** Implementation of fts5_insttoken() function.
+*/
+static void fts5InsttokenFunc(
+  sqlite3_context *pCtx,          /* Function call context */
+  int nArg,                       /* Number of args */
+  sqlite3_value **apArg           /* Function arguments */
+){
+  assert( nArg==1 );
+  (void)nArg;
+  sqlite3_result_value(pCtx, apArg[0]);
+  sqlite3_result_subtype(pCtx, FTS5_INSTTOKEN_SUBTYPE);
+}
+
+/*
+** Return true if zName is the extension on one of the shadow tables used
+** by this module.
+*/
+static int fts5ShadowName(const char *zName){
+  static const char *azName[] = {
+    "config", "content", "data", "docsize", "idx"
+  };
+  unsigned int i;
+  for(i=0; i<sizeof(azName)/sizeof(azName[0]); i++){
+    if( sqlite3_stricmp(zName, azName[i])==0 ) return 1;
+  }
+  return 0;
+}
+
+/*
+** Run an integrity check on the FTS5 data structures.  Return a string
+** if anything is found amiss.  Return a NULL pointer if everything is
+** OK.
+*/
+static int fts5IntegrityMethod(
+  sqlite3_vtab *pVtab,    /* the FTS5 virtual table to check */
+  const char *zSchema,    /* Name of schema in which this table lives */
+  const char *zTabname,   /* Name of the table itself */
+  int isQuick,            /* True if this is a quick-check */
+  char **pzErr            /* Write error message here */
+){
+  Fts5FullTable *pTab = (Fts5FullTable*)pVtab;
+  int rc;
+
+  assert( pzErr!=0 && *pzErr==0 );
+  UNUSED_PARAM(isQuick);
+  assert( pTab->p.pConfig->pzErrmsg==0 );
+  pTab->p.pConfig->pzErrmsg = pzErr;
+  rc = sqlite3Fts5StorageIntegrity(pTab->pStorage, 0);
+  if( *pzErr==0 && rc!=SQLITE_OK ){
+    if( (rc&0xff)==SQLITE_CORRUPT ){
+      *pzErr = sqlite3_mprintf("malformed inverted index for FTS5 table %s.%s",
+          zSchema, zTabname);
+      rc = (*pzErr) ? SQLITE_OK : SQLITE_NOMEM;
+    }else{
+      *pzErr = sqlite3_mprintf("unable to validate the inverted index for"
+          " FTS5 table %s.%s: %s",
+          zSchema, zTabname, sqlite3_errstr(rc));
+    }
+  }
+
+  sqlite3Fts5IndexCloseReader(pTab->p.pIndex);
+  pTab->p.pConfig->pzErrmsg = 0;
+
+  return rc;
+}
+
+static int fts5Init(sqlite3 *db){
+  static const sqlite3_module fts5Mod = {
+    /* iVersion      */ 4,
+    /* xCreate       */ fts5CreateMethod,
+    /* xConnect      */ fts5ConnectMethod,
+    /* xBestIndex    */ fts5BestIndexMethod,
+    /* xDisconnect   */ fts5DisconnectMethod,
+    /* xDestroy      */ fts5DestroyMethod,
+    /* xOpen         */ fts5OpenMethod,
+    /* xClose        */ fts5CloseMethod,
+    /* xFilter       */ fts5FilterMethod,
+    /* xNext         */ fts5NextMethod,
+    /* xEof          */ fts5EofMethod,
+    /* xColumn       */ fts5ColumnMethod,
+    /* xRowid        */ fts5RowidMethod,
+    /* xUpdate       */ fts5UpdateMethod,
+    /* xBegin        */ fts5BeginMethod,
+    /* xSync         */ fts5SyncMethod,
+    /* xCommit       */ fts5CommitMethod,
+    /* xRollback     */ fts5RollbackMethod,
+    /* xFindFunction */ fts5FindFunctionMethod,
+    /* xRename       */ fts5RenameMethod,
+    /* xSavepoint    */ fts5SavepointMethod,
+    /* xRelease      */ fts5ReleaseMethod,
+    /* xRollbackTo   */ fts5RollbackToMethod,
+    /* xShadowName   */ fts5ShadowName,
+    /* xIntegrity    */ fts5IntegrityMethod
+  };
+
+  int rc;
+  Fts5Global *pGlobal = 0;
+
+  pGlobal = (Fts5Global*)sqlite3_malloc(sizeof(Fts5Global));
+  if( pGlobal==0 ){
+    rc = SQLITE_NOMEM;
+  }else{
+    void *p = (void*)pGlobal;
+    memset(pGlobal, 0, sizeof(Fts5Global));
+    pGlobal->db = db;
+    pGlobal->api.iVersion = 3;
+    pGlobal->api.xCreateFunction = fts5CreateAux;
+    pGlobal->api.xCreateTokenizer = fts5CreateTokenizer;
+    pGlobal->api.xFindTokenizer = fts5FindTokenizer;
+    pGlobal->api.xCreateTokenizer_v2 = fts5CreateTokenizer_v2;
+    pGlobal->api.xFindTokenizer_v2 = fts5FindTokenizer_v2;
+
+    /* Initialize pGlobal->aLocaleHdr[] to a 128-bit pseudo-random vector.
+    ** The constants below were generated randomly.  */
+    sqlite3_randomness(sizeof(pGlobal->aLocaleHdr), pGlobal->aLocaleHdr);
+    pGlobal->aLocaleHdr[0] ^= 0xF924976D;
+    pGlobal->aLocaleHdr[1] ^= 0x16596E13;
+    pGlobal->aLocaleHdr[2] ^= 0x7C80BEAA;
+    pGlobal->aLocaleHdr[3] ^= 0x9B03A67F;
+    assert( sizeof(pGlobal->aLocaleHdr)==16 );
+
+    rc = sqlite3_create_module_v2(db, "fts5", &fts5Mod, p, fts5ModuleDestroy);
+    if( rc==SQLITE_OK ) rc = sqlite3Fts5IndexInit(db);
+    if( rc==SQLITE_OK ) rc = sqlite3Fts5ExprInit(pGlobal, db);
+    if( rc==SQLITE_OK ) rc = sqlite3Fts5AuxInit(&pGlobal->api);
+    if( rc==SQLITE_OK ) rc = sqlite3Fts5TokenizerInit(&pGlobal->api);
+    if( rc==SQLITE_OK ) rc = sqlite3Fts5VocabInit(pGlobal, db);
+    if( rc==SQLITE_OK ){
+      rc = sqlite3_create_function(
+          db, "fts5", 1, SQLITE_UTF8, p, fts5Fts5Func, 0, 0
+      );
+    }
+    if( rc==SQLITE_OK ){
+      rc = sqlite3_create_function(
+          db, "fts5_source_id", 0, 
+          SQLITE_UTF8|SQLITE_DETERMINISTIC|SQLITE_INNOCUOUS,
+          p, fts5SourceIdFunc, 0, 0
+      );
+    }
+    if( rc==SQLITE_OK ){
+      rc = sqlite3_create_function(
+          db, "fts5_locale", 2, 
+          SQLITE_UTF8|SQLITE_INNOCUOUS|SQLITE_RESULT_SUBTYPE|SQLITE_SUBTYPE,
+          p, fts5LocaleFunc, 0, 0
+      );
+    }
+    if( rc==SQLITE_OK ){
+      rc = sqlite3_create_function(
+          db, "fts5_insttoken", 1, 
+          SQLITE_UTF8|SQLITE_INNOCUOUS|SQLITE_RESULT_SUBTYPE,
+          p, fts5InsttokenFunc, 0, 0
+      );
+    }
+  }
+
+  /* If SQLITE_FTS5_ENABLE_TEST_MI is defined, assume that the file
+  ** fts5_test_mi.c is compiled and linked into the executable. And call
+  ** its entry point to enable the matchinfo() demo.  */
+#ifdef SQLITE_FTS5_ENABLE_TEST_MI
+  if( rc==SQLITE_OK ){
+    extern int sqlite3Fts5TestRegisterMatchinfo(sqlite3*);
+    rc = sqlite3Fts5TestRegisterMatchinfo(db);
+  }
+#endif
+
+  return rc;
+}
+
+/*
+** The following functions are used to register the module with SQLite. If
+** this module is being built as part of the SQLite core (SQLITE_CORE is
+** defined), then sqlite3_open() will call sqlite3Fts5Init() directly.
+**
+** Or, if this module is being built as a loadable extension, 
+** sqlite3Fts5Init() is omitted and the two standard entry points
+** sqlite3_fts_init() and sqlite3_fts5_init() defined instead.
+*/
+#ifndef SQLITE_CORE
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_fts_init(
+  sqlite3 *db,
+  char **pzErrMsg,
+  const sqlite3_api_routines *pApi
+){
+  SQLITE_EXTENSION_INIT2(pApi);
+  (void)pzErrMsg;  /* Unused parameter */
+  return fts5Init(db);
+}
+
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_fts5_init(
+  sqlite3 *db,
+  char **pzErrMsg,
+  const sqlite3_api_routines *pApi
+){
+  SQLITE_EXTENSION_INIT2(pApi);
+  (void)pzErrMsg;  /* Unused parameter */
+  return fts5Init(db);
+}
+#else
+int sqlite3Fts5Init(sqlite3 *db){
+  return fts5Init(db);
+}
+#endif
diff --git a/ext/fts5/fts5_storage.c b/ext/fts5/fts5_storage.c
new file mode 100644
index 0000000000000000000000000000000000000000..31f5fc5dc3b19d7662ee73e6725c33e9e054b95b
--- /dev/null
+++ b/ext/fts5/fts5_storage.c
@@ -0,0 +1,1512 @@
+/*
+** 2014 May 31
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+*/
+
+
+
+#include "fts5Int.h"
+
+/*
+** pSavedRow:
+**   SQL statement FTS5_STMT_LOOKUP2 is a copy of FTS5_STMT_LOOKUP, it 
+**   does a by-rowid lookup to retrieve a single row from the %_content 
+**   table or equivalent external-content table/view.
+**
+**   However, FTS5_STMT_LOOKUP2 is only used when retrieving the original
+**   values for a row being UPDATEd. In that case, the SQL statement is
+**   not reset and pSavedRow is set to point at it. This is so that the
+**   insert operation that follows the delete may access the original 
+**   row values for any new values for which sqlite3_value_nochange() returns
+**   true. i.e. if the user executes:
+**
+**        CREATE VIRTUAL TABLE ft USING fts5(a, b, c, locale=1);
+**        ...
+**        UPDATE fts SET a=?, b=? WHERE rowid=?;
+**
+**   then the value passed to the xUpdate() method of this table as the 
+**   new.c value is an sqlite3_value_nochange() value. So in this case it
+**   must be read from the saved row stored in Fts5Storage.pSavedRow.
+**
+**   This is necessary - using sqlite3_value_nochange() instead of just having
+**   SQLite pass the original value back via xUpdate() - so as not to discard
+**   any locale information associated with such values.
+**
+*/
+struct Fts5Storage {
+  Fts5Config *pConfig;
+  Fts5Index *pIndex;
+  int bTotalsValid;               /* True if nTotalRow/aTotalSize[] are valid */
+  i64 nTotalRow;                  /* Total number of rows in FTS table */
+  i64 *aTotalSize;                /* Total sizes of each column */ 
+  sqlite3_stmt *pSavedRow;
+  sqlite3_stmt *aStmt[12];
+};
+
+
+#if FTS5_STMT_SCAN_ASC!=0 
+# error "FTS5_STMT_SCAN_ASC mismatch" 
+#endif
+#if FTS5_STMT_SCAN_DESC!=1 
+# error "FTS5_STMT_SCAN_DESC mismatch" 
+#endif
+#if FTS5_STMT_LOOKUP!=2
+# error "FTS5_STMT_LOOKUP mismatch" 
+#endif
+
+#define FTS5_STMT_LOOKUP2         3
+#define FTS5_STMT_INSERT_CONTENT  4
+#define FTS5_STMT_REPLACE_CONTENT 5
+#define FTS5_STMT_DELETE_CONTENT  6
+#define FTS5_STMT_REPLACE_DOCSIZE 7
+#define FTS5_STMT_DELETE_DOCSIZE  8
+#define FTS5_STMT_LOOKUP_DOCSIZE  9
+#define FTS5_STMT_REPLACE_CONFIG 10
+#define FTS5_STMT_SCAN           11
+
+/*
+** Prepare the two insert statements - Fts5Storage.pInsertContent and
+** Fts5Storage.pInsertDocsize - if they have not already been prepared.
+** Return SQLITE_OK if successful, or an SQLite error code if an error
+** occurs.
+*/
+static int fts5StorageGetStmt(
+  Fts5Storage *p,                 /* Storage handle */
+  int eStmt,                      /* FTS5_STMT_XXX constant */
+  sqlite3_stmt **ppStmt,          /* OUT: Prepared statement handle */
+  char **pzErrMsg                 /* OUT: Error message (if any) */
+){
+  int rc = SQLITE_OK;
+
+  /* If there is no %_docsize table, there should be no requests for 
+  ** statements to operate on it.  */
+  assert( p->pConfig->bColumnsize || (
+        eStmt!=FTS5_STMT_REPLACE_DOCSIZE 
+     && eStmt!=FTS5_STMT_DELETE_DOCSIZE 
+     && eStmt!=FTS5_STMT_LOOKUP_DOCSIZE 
+  ));
+
+  assert( eStmt>=0 && eStmt<ArraySize(p->aStmt) );
+  if( p->aStmt[eStmt]==0 ){
+    const char *azStmt[] = {
+      "SELECT %s FROM %s T WHERE T.%Q >= ? AND T.%Q <= ? ORDER BY T.%Q ASC",
+      "SELECT %s FROM %s T WHERE T.%Q <= ? AND T.%Q >= ? ORDER BY T.%Q DESC",
+      "SELECT %s FROM %s T WHERE T.%Q=?",               /* LOOKUP  */
+      "SELECT %s FROM %s T WHERE T.%Q=?",               /* LOOKUP2  */
+
+      "INSERT INTO %Q.'%q_content' VALUES(%s)",         /* INSERT_CONTENT  */
+      "REPLACE INTO %Q.'%q_content' VALUES(%s)",        /* REPLACE_CONTENT */
+      "DELETE FROM %Q.'%q_content' WHERE id=?",         /* DELETE_CONTENT  */
+      "REPLACE INTO %Q.'%q_docsize' VALUES(?,?%s)",     /* REPLACE_DOCSIZE  */
+      "DELETE FROM %Q.'%q_docsize' WHERE id=?",         /* DELETE_DOCSIZE  */
+
+      "SELECT sz%s FROM %Q.'%q_docsize' WHERE id=?",    /* LOOKUP_DOCSIZE  */
+
+      "REPLACE INTO %Q.'%q_config' VALUES(?,?)",        /* REPLACE_CONFIG */
+      "SELECT %s FROM %s AS T",                         /* SCAN */
+    };
+    Fts5Config *pC = p->pConfig;
+    char *zSql = 0;
+
+    assert( ArraySize(azStmt)==ArraySize(p->aStmt) );
+
+    switch( eStmt ){
+      case FTS5_STMT_SCAN:
+        zSql = sqlite3_mprintf(azStmt[eStmt], 
+            pC->zContentExprlist, pC->zContent
+        );
+        break;
+
+      case FTS5_STMT_SCAN_ASC:
+      case FTS5_STMT_SCAN_DESC:
+        zSql = sqlite3_mprintf(azStmt[eStmt], pC->zContentExprlist, 
+            pC->zContent, pC->zContentRowid, pC->zContentRowid,
+            pC->zContentRowid
+        );
+        break;
+
+      case FTS5_STMT_LOOKUP:
+      case FTS5_STMT_LOOKUP2:
+        zSql = sqlite3_mprintf(azStmt[eStmt], 
+            pC->zContentExprlist, pC->zContent, pC->zContentRowid
+        );
+        break;
+
+      case FTS5_STMT_INSERT_CONTENT: 
+      case FTS5_STMT_REPLACE_CONTENT: {
+        char *zBind = 0;
+        int i;
+
+        assert( pC->eContent==FTS5_CONTENT_NORMAL 
+             || pC->eContent==FTS5_CONTENT_UNINDEXED 
+        );
+
+        /* Add bindings for the "c*" columns - those that store the actual
+        ** table content. If eContent==NORMAL, then there is one binding
+        ** for each column. Or, if eContent==UNINDEXED, then there are only
+        ** bindings for the UNINDEXED columns. */
+        for(i=0; rc==SQLITE_OK && i<(pC->nCol+1); i++){
+          if( !i || pC->eContent==FTS5_CONTENT_NORMAL || pC->abUnindexed[i-1] ){
+            zBind = sqlite3Fts5Mprintf(&rc, "%z%s?%d", zBind, zBind?",":"",i+1);
+          }
+        }
+
+        /* Add bindings for any "l*" columns. Only non-UNINDEXED columns
+        ** require these.  */
+        if( pC->bLocale && pC->eContent==FTS5_CONTENT_NORMAL ){
+          for(i=0; rc==SQLITE_OK && i<pC->nCol; i++){
+            if( pC->abUnindexed[i]==0 ){
+              zBind = sqlite3Fts5Mprintf(&rc, "%z,?%d", zBind, pC->nCol+i+2);
+            }
+          }
+        }
+
+        zSql = sqlite3Fts5Mprintf(&rc, azStmt[eStmt], pC->zDb, pC->zName,zBind);
+        sqlite3_free(zBind);
+        break;
+      }
+
+      case FTS5_STMT_REPLACE_DOCSIZE: 
+        zSql = sqlite3_mprintf(azStmt[eStmt], pC->zDb, pC->zName,
+          (pC->bContentlessDelete ? ",?" : "")
+        );
+        break;
+
+      case FTS5_STMT_LOOKUP_DOCSIZE: 
+        zSql = sqlite3_mprintf(azStmt[eStmt], 
+            (pC->bContentlessDelete ? ",origin" : ""),
+            pC->zDb, pC->zName
+        );
+        break;
+
+      default:
+        zSql = sqlite3_mprintf(azStmt[eStmt], pC->zDb, pC->zName);
+        break;
+    }
+
+    if( zSql==0 ){
+      rc = SQLITE_NOMEM;
+    }else{
+      int f = SQLITE_PREPARE_PERSISTENT;
+      if( eStmt>FTS5_STMT_LOOKUP2 ) f |= SQLITE_PREPARE_NO_VTAB;
+      p->pConfig->bLock++;
+      rc = sqlite3_prepare_v3(pC->db, zSql, -1, f, &p->aStmt[eStmt], 0);
+      p->pConfig->bLock--;
+      sqlite3_free(zSql);
+      if( rc!=SQLITE_OK && pzErrMsg ){
+        *pzErrMsg = sqlite3_mprintf("%s", sqlite3_errmsg(pC->db));
+      }
+    }
+  }
+
+  *ppStmt = p->aStmt[eStmt];
+  sqlite3_reset(*ppStmt);
+  return rc;
+}
+
+
+static int fts5ExecPrintf(
+  sqlite3 *db,
+  char **pzErr,
+  const char *zFormat,
+  ...
+){
+  int rc;
+  va_list ap;                     /* ... printf arguments */
+  char *zSql;
+
+  va_start(ap, zFormat);
+  zSql = sqlite3_vmprintf(zFormat, ap);
+
+  if( zSql==0 ){
+    rc = SQLITE_NOMEM;
+  }else{
+    rc = sqlite3_exec(db, zSql, 0, 0, pzErr);
+    sqlite3_free(zSql);
+  }
+
+  va_end(ap);
+  return rc;
+}
+
+/*
+** Drop all shadow tables. Return SQLITE_OK if successful or an SQLite error
+** code otherwise.
+*/
+int sqlite3Fts5DropAll(Fts5Config *pConfig){
+  int rc = fts5ExecPrintf(pConfig->db, 0, 
+      "DROP TABLE IF EXISTS %Q.'%q_data';"
+      "DROP TABLE IF EXISTS %Q.'%q_idx';"
+      "DROP TABLE IF EXISTS %Q.'%q_config';",
+      pConfig->zDb, pConfig->zName,
+      pConfig->zDb, pConfig->zName,
+      pConfig->zDb, pConfig->zName
+  );
+  if( rc==SQLITE_OK && pConfig->bColumnsize ){
+    rc = fts5ExecPrintf(pConfig->db, 0, 
+        "DROP TABLE IF EXISTS %Q.'%q_docsize';",
+        pConfig->zDb, pConfig->zName
+    );
+  }
+  if( rc==SQLITE_OK && pConfig->eContent==FTS5_CONTENT_NORMAL ){
+    rc = fts5ExecPrintf(pConfig->db, 0, 
+        "DROP TABLE IF EXISTS %Q.'%q_content';",
+        pConfig->zDb, pConfig->zName
+    );
+  }
+  return rc;
+}
+
+static void fts5StorageRenameOne(
+  Fts5Config *pConfig,            /* Current FTS5 configuration */
+  int *pRc,                       /* IN/OUT: Error code */
+  const char *zTail,              /* Tail of table name e.g. "data", "config" */
+  const char *zName               /* New name of FTS5 table */
+){
+  if( *pRc==SQLITE_OK ){
+    *pRc = fts5ExecPrintf(pConfig->db, 0, 
+        "ALTER TABLE %Q.'%q_%s' RENAME TO '%q_%s';",
+        pConfig->zDb, pConfig->zName, zTail, zName, zTail
+    );
+  }
+}
+
+int sqlite3Fts5StorageRename(Fts5Storage *pStorage, const char *zName){
+  Fts5Config *pConfig = pStorage->pConfig;
+  int rc = sqlite3Fts5StorageSync(pStorage);
+
+  fts5StorageRenameOne(pConfig, &rc, "data", zName);
+  fts5StorageRenameOne(pConfig, &rc, "idx", zName);
+  fts5StorageRenameOne(pConfig, &rc, "config", zName);
+  if( pConfig->bColumnsize ){
+    fts5StorageRenameOne(pConfig, &rc, "docsize", zName);
+  }
+  if( pConfig->eContent==FTS5_CONTENT_NORMAL ){
+    fts5StorageRenameOne(pConfig, &rc, "content", zName);
+  }
+  return rc;
+}
+
+/*
+** Create the shadow table named zPost, with definition zDefn. Return
+** SQLITE_OK if successful, or an SQLite error code otherwise.
+*/
+int sqlite3Fts5CreateTable(
+  Fts5Config *pConfig,            /* FTS5 configuration */
+  const char *zPost,              /* Shadow table to create (e.g. "content") */
+  const char *zDefn,              /* Columns etc. for shadow table */
+  int bWithout,                   /* True for without rowid */
+  char **pzErr                    /* OUT: Error message */
+){
+  int rc;
+  char *zErr = 0;
+
+  rc = fts5ExecPrintf(pConfig->db, &zErr, "CREATE TABLE %Q.'%q_%q'(%s)%s",
+      pConfig->zDb, pConfig->zName, zPost, zDefn, 
+#ifndef SQLITE_FTS5_NO_WITHOUT_ROWID
+      bWithout?" WITHOUT ROWID":
+#endif
+      ""
+  );
+  if( zErr ){
+    *pzErr = sqlite3_mprintf(
+        "fts5: error creating shadow table %q_%s: %s", 
+        pConfig->zName, zPost, zErr
+    );
+    sqlite3_free(zErr);
+  }
+
+  return rc;
+}
+
+/*
+** Open a new Fts5Index handle. If the bCreate argument is true, create
+** and initialize the underlying tables 
+**
+** If successful, set *pp to point to the new object and return SQLITE_OK.
+** Otherwise, set *pp to NULL and return an SQLite error code.
+*/
+int sqlite3Fts5StorageOpen(
+  Fts5Config *pConfig, 
+  Fts5Index *pIndex, 
+  int bCreate, 
+  Fts5Storage **pp,
+  char **pzErr                    /* OUT: Error message */
+){
+  int rc = SQLITE_OK;
+  Fts5Storage *p;                 /* New object */
+  sqlite3_int64 nByte;            /* Bytes of space to allocate */
+
+  nByte = sizeof(Fts5Storage)               /* Fts5Storage object */
+        + pConfig->nCol * sizeof(i64);      /* Fts5Storage.aTotalSize[] */
+  *pp = p = (Fts5Storage*)sqlite3_malloc64(nByte);
+  if( !p ) return SQLITE_NOMEM;
+
+  memset(p, 0, (size_t)nByte);
+  p->aTotalSize = (i64*)&p[1];
+  p->pConfig = pConfig;
+  p->pIndex = pIndex;
+
+  if( bCreate ){
+    if( pConfig->eContent==FTS5_CONTENT_NORMAL 
+     || pConfig->eContent==FTS5_CONTENT_UNINDEXED 
+    ){
+      int nDefn = 32 + pConfig->nCol*10;
+      char *zDefn = sqlite3_malloc64(32 + (sqlite3_int64)pConfig->nCol * 20);
+      if( zDefn==0 ){
+        rc = SQLITE_NOMEM;
+      }else{
+        int i;
+        int iOff;
+        sqlite3_snprintf(nDefn, zDefn, "id INTEGER PRIMARY KEY");
+        iOff = (int)strlen(zDefn);
+        for(i=0; i<pConfig->nCol; i++){
+          if( pConfig->eContent==FTS5_CONTENT_NORMAL 
+           || pConfig->abUnindexed[i] 
+          ){
+            sqlite3_snprintf(nDefn-iOff, &zDefn[iOff], ", c%d", i);
+            iOff += (int)strlen(&zDefn[iOff]);
+          }
+        }
+        if( pConfig->bLocale ){
+          for(i=0; i<pConfig->nCol; i++){
+            if( pConfig->abUnindexed[i]==0 ){
+              sqlite3_snprintf(nDefn-iOff, &zDefn[iOff], ", l%d", i);
+              iOff += (int)strlen(&zDefn[iOff]);
+            }
+          }
+        }
+        rc = sqlite3Fts5CreateTable(pConfig, "content", zDefn, 0, pzErr);
+      }
+      sqlite3_free(zDefn);
+    }
+
+    if( rc==SQLITE_OK && pConfig->bColumnsize ){
+      const char *zCols = "id INTEGER PRIMARY KEY, sz BLOB";
+      if( pConfig->bContentlessDelete ){
+        zCols = "id INTEGER PRIMARY KEY, sz BLOB, origin INTEGER";
+      }
+      rc = sqlite3Fts5CreateTable(pConfig, "docsize", zCols, 0, pzErr);
+    }
+    if( rc==SQLITE_OK ){
+      rc = sqlite3Fts5CreateTable(
+          pConfig, "config", "k PRIMARY KEY, v", 1, pzErr
+      );
+    }
+    if( rc==SQLITE_OK ){
+      rc = sqlite3Fts5StorageConfigValue(p, "version", 0, FTS5_CURRENT_VERSION);
+    }
+  }
+
+  if( rc ){
+    sqlite3Fts5StorageClose(p);
+    *pp = 0;
+  }
+  return rc;
+}
+
+/*
+** Close a handle opened by an earlier call to sqlite3Fts5StorageOpen().
+*/
+int sqlite3Fts5StorageClose(Fts5Storage *p){
+  int rc = SQLITE_OK;
+  if( p ){
+    int i;
+
+    /* Finalize all SQL statements */
+    for(i=0; i<ArraySize(p->aStmt); i++){
+      sqlite3_finalize(p->aStmt[i]);
+    }
+
+    sqlite3_free(p);
+  }
+  return rc;
+}
+
+typedef struct Fts5InsertCtx Fts5InsertCtx;
+struct Fts5InsertCtx {
+  Fts5Storage *pStorage;
+  int iCol;
+  int szCol;                      /* Size of column value in tokens */
+};
+
+/*
+** Tokenization callback used when inserting tokens into the FTS index.
+*/
+static int fts5StorageInsertCallback(
+  void *pContext,                 /* Pointer to Fts5InsertCtx object */
+  int tflags,
+  const char *pToken,             /* Buffer containing token */
+  int nToken,                     /* Size of token in bytes */
+  int iUnused1,                   /* Start offset of token */
+  int iUnused2                    /* End offset of token */
+){
+  Fts5InsertCtx *pCtx = (Fts5InsertCtx*)pContext;
+  Fts5Index *pIdx = pCtx->pStorage->pIndex;
+  UNUSED_PARAM2(iUnused1, iUnused2);
+  if( nToken>FTS5_MAX_TOKEN_SIZE ) nToken = FTS5_MAX_TOKEN_SIZE;
+  if( (tflags & FTS5_TOKEN_COLOCATED)==0 || pCtx->szCol==0 ){
+    pCtx->szCol++;
+  }
+  return sqlite3Fts5IndexWrite(pIdx, pCtx->iCol, pCtx->szCol-1, pToken, nToken);
+}
+
+/*
+** This function is used as part of an UPDATE statement that modifies the
+** rowid of a row. In that case, this function is called first to set
+** Fts5Storage.pSavedRow to point to a statement that may be used to 
+** access the original values of the row being deleted - iDel.
+**
+** SQLITE_OK is returned if successful, or an SQLite error code otherwise.
+** It is not considered an error if row iDel does not exist. In this case
+** pSavedRow is not set and SQLITE_OK returned.
+*/
+int sqlite3Fts5StorageFindDeleteRow(Fts5Storage *p, i64 iDel){
+  int rc = SQLITE_OK;
+  sqlite3_stmt *pSeek = 0;
+
+  assert( p->pSavedRow==0 );
+  rc = fts5StorageGetStmt(p, FTS5_STMT_LOOKUP+1, &pSeek, 0);
+  if( rc==SQLITE_OK ){
+    sqlite3_bind_int64(pSeek, 1, iDel);
+    if( sqlite3_step(pSeek)!=SQLITE_ROW ){
+      rc = sqlite3_reset(pSeek);
+    }else{
+      p->pSavedRow = pSeek;
+    }
+  }
+
+  return rc;
+}
+
+/*
+** If a row with rowid iDel is present in the %_content table, add the
+** delete-markers to the FTS index necessary to delete it. Do not actually
+** remove the %_content row at this time though.
+**
+** If parameter bSaveRow is true, then Fts5Storage.pSavedRow is left
+** pointing to a statement (FTS5_STMT_LOOKUP2) that may be used to access
+** the original values of the row being deleted. This is used by UPDATE
+** statements.
+*/
+static int fts5StorageDeleteFromIndex(
+  Fts5Storage *p, 
+  i64 iDel, 
+  sqlite3_value **apVal,
+  int bSaveRow                    /* True to set pSavedRow */
+){
+  Fts5Config *pConfig = p->pConfig;
+  sqlite3_stmt *pSeek = 0;        /* SELECT to read row iDel from %_data */
+  int rc = SQLITE_OK;             /* Return code */
+  int rc2;                        /* sqlite3_reset() return code */
+  int iCol;
+  Fts5InsertCtx ctx;
+
+  assert( bSaveRow==0 || apVal==0 );
+  assert( bSaveRow==0 || bSaveRow==1 );
+  assert( FTS5_STMT_LOOKUP2==FTS5_STMT_LOOKUP+1 );
+
+  if( apVal==0 ){
+    if( p->pSavedRow && bSaveRow ){
+      pSeek = p->pSavedRow;
+      p->pSavedRow = 0;
+    }else{
+      rc = fts5StorageGetStmt(p, FTS5_STMT_LOOKUP+bSaveRow, &pSeek, 0);
+      if( rc!=SQLITE_OK ) return rc;
+      sqlite3_bind_int64(pSeek, 1, iDel);
+      if( sqlite3_step(pSeek)!=SQLITE_ROW ){
+        return sqlite3_reset(pSeek);
+      }
+    }
+  }
+
+  ctx.pStorage = p;
+  ctx.iCol = -1;
+  for(iCol=1; rc==SQLITE_OK && iCol<=pConfig->nCol; iCol++){
+    if( pConfig->abUnindexed[iCol-1]==0 ){
+      sqlite3_value *pVal = 0;
+      const char *pText = 0;
+      int nText = 0;
+      const char *pLoc = 0;
+      int nLoc = 0;
+
+      assert( pSeek==0 || apVal==0 );
+      assert( pSeek!=0 || apVal!=0 );
+      if( pSeek ){
+        pVal = sqlite3_column_value(pSeek, iCol);
+      }else{
+        pVal = apVal[iCol-1];
+      }
+
+      if( pConfig->bLocale && sqlite3Fts5IsLocaleValue(pConfig, pVal) ){
+        rc = sqlite3Fts5DecodeLocaleValue(pVal, &pText, &nText, &pLoc, &nLoc);
+      }else{
+        pText = (const char*)sqlite3_value_text(pVal);
+        nText = sqlite3_value_bytes(pVal);
+        if( pConfig->bLocale && pSeek ){
+          pLoc = (const char*)sqlite3_column_text(pSeek, iCol + pConfig->nCol);
+          nLoc = sqlite3_column_bytes(pSeek, iCol + pConfig->nCol);
+        }
+      }
+
+      if( rc==SQLITE_OK ){
+        sqlite3Fts5SetLocale(pConfig, pLoc, nLoc);
+        ctx.szCol = 0;
+        rc = sqlite3Fts5Tokenize(pConfig, FTS5_TOKENIZE_DOCUMENT, 
+            pText, nText, (void*)&ctx, fts5StorageInsertCallback
+        );
+        p->aTotalSize[iCol-1] -= (i64)ctx.szCol;
+        if( rc==SQLITE_OK && p->aTotalSize[iCol-1]<0 ){
+          rc = FTS5_CORRUPT;
+        }
+        sqlite3Fts5ClearLocale(pConfig);
+      }
+    }
+  }
+  if( rc==SQLITE_OK && p->nTotalRow<1 ){
+    rc = FTS5_CORRUPT;
+  }else{
+    p->nTotalRow--;
+  }
+
+  if( rc==SQLITE_OK && bSaveRow ){
+    assert( p->pSavedRow==0 );
+    p->pSavedRow = pSeek;
+  }else{
+    rc2 = sqlite3_reset(pSeek);
+    if( rc==SQLITE_OK ) rc = rc2;
+  }
+  return rc;
+}
+
+/*
+** Reset any saved statement pSavedRow. Zero pSavedRow as well. This
+** should be called by the xUpdate() method of the fts5 table before 
+** returning from any operation that may have set Fts5Storage.pSavedRow.
+*/
+void sqlite3Fts5StorageReleaseDeleteRow(Fts5Storage *pStorage){
+  assert( pStorage->pSavedRow==0 
+       || pStorage->pSavedRow==pStorage->aStmt[FTS5_STMT_LOOKUP2] 
+  );
+  sqlite3_reset(pStorage->pSavedRow);
+  pStorage->pSavedRow = 0;
+}
+
+/*
+** This function is called to process a DELETE on a contentless_delete=1
+** table. It adds the tombstone required to delete the entry with rowid 
+** iDel. If successful, SQLITE_OK is returned. Or, if an error occurs,
+** an SQLite error code.
+*/
+static int fts5StorageContentlessDelete(Fts5Storage *p, i64 iDel){
+  i64 iOrigin = 0;
+  sqlite3_stmt *pLookup = 0;
+  int rc = SQLITE_OK;
+
+  assert( p->pConfig->bContentlessDelete );
+  assert( p->pConfig->eContent==FTS5_CONTENT_NONE
+       || p->pConfig->eContent==FTS5_CONTENT_UNINDEXED
+  );
+
+  /* Look up the origin of the document in the %_docsize table. Store
+  ** this in stack variable iOrigin.  */
+  rc = fts5StorageGetStmt(p, FTS5_STMT_LOOKUP_DOCSIZE, &pLookup, 0);
+  if( rc==SQLITE_OK ){
+    sqlite3_bind_int64(pLookup, 1, iDel);
+    if( SQLITE_ROW==sqlite3_step(pLookup) ){
+      iOrigin = sqlite3_column_int64(pLookup, 1);
+    }
+    rc = sqlite3_reset(pLookup);
+  }
+
+  if( rc==SQLITE_OK && iOrigin!=0 ){
+    rc = sqlite3Fts5IndexContentlessDelete(p->pIndex, iOrigin, iDel);
+  }
+
+  return rc;
+}
+
+/*
+** Insert a record into the %_docsize table. Specifically, do:
+**
+**   INSERT OR REPLACE INTO %_docsize(id, sz) VALUES(iRowid, pBuf);
+**
+** If there is no %_docsize table (as happens if the columnsize=0 option
+** is specified when the FTS5 table is created), this function is a no-op.
+*/
+static int fts5StorageInsertDocsize(
+  Fts5Storage *p,                 /* Storage module to write to */
+  i64 iRowid,                     /* id value */
+  Fts5Buffer *pBuf                /* sz value */
+){
+  int rc = SQLITE_OK;
+  if( p->pConfig->bColumnsize ){
+    sqlite3_stmt *pReplace = 0;
+    rc = fts5StorageGetStmt(p, FTS5_STMT_REPLACE_DOCSIZE, &pReplace, 0);
+    if( rc==SQLITE_OK ){
+      sqlite3_bind_int64(pReplace, 1, iRowid);
+      if( p->pConfig->bContentlessDelete ){
+        i64 iOrigin = 0;
+        rc = sqlite3Fts5IndexGetOrigin(p->pIndex, &iOrigin);
+        sqlite3_bind_int64(pReplace, 3, iOrigin);
+      }
+    }
+    if( rc==SQLITE_OK ){
+      sqlite3_bind_blob(pReplace, 2, pBuf->p, pBuf->n, SQLITE_STATIC);
+      sqlite3_step(pReplace);
+      rc = sqlite3_reset(pReplace);
+      sqlite3_bind_null(pReplace, 2);
+    }
+  }
+  return rc;
+}
+
+/*
+** Load the contents of the "averages" record from disk into the 
+** p->nTotalRow and p->aTotalSize[] variables. If successful, and if
+** argument bCache is true, set the p->bTotalsValid flag to indicate
+** that the contents of aTotalSize[] and nTotalRow are valid until
+** further notice.
+**
+** Return SQLITE_OK if successful, or an SQLite error code if an error
+** occurs.
+*/
+static int fts5StorageLoadTotals(Fts5Storage *p, int bCache){
+  int rc = SQLITE_OK;
+  if( p->bTotalsValid==0 ){
+    rc = sqlite3Fts5IndexGetAverages(p->pIndex, &p->nTotalRow, p->aTotalSize);
+    p->bTotalsValid = bCache;
+  }
+  return rc;
+}
+
+/*
+** Store the current contents of the p->nTotalRow and p->aTotalSize[] 
+** variables in the "averages" record on disk.
+**
+** Return SQLITE_OK if successful, or an SQLite error code if an error
+** occurs.
+*/
+static int fts5StorageSaveTotals(Fts5Storage *p){
+  int nCol = p->pConfig->nCol;
+  int i;
+  Fts5Buffer buf;
+  int rc = SQLITE_OK;
+  memset(&buf, 0, sizeof(buf));
+
+  sqlite3Fts5BufferAppendVarint(&rc, &buf, p->nTotalRow);
+  for(i=0; i<nCol; i++){
+    sqlite3Fts5BufferAppendVarint(&rc, &buf, p->aTotalSize[i]);
+  }
+  if( rc==SQLITE_OK ){
+    rc = sqlite3Fts5IndexSetAverages(p->pIndex, buf.p, buf.n);
+  }
+  sqlite3_free(buf.p);
+
+  return rc;
+}
+
+/*
+** Remove a row from the FTS table.
+*/
+int sqlite3Fts5StorageDelete(
+  Fts5Storage *p,                 /* Storage object */
+  i64 iDel,                       /* Rowid to delete from table */
+  sqlite3_value **apVal,          /* Optional - values to remove from index */
+  int bSaveRow                    /* If true, set pSavedRow for deleted row */
+){
+  Fts5Config *pConfig = p->pConfig;
+  int rc;
+  sqlite3_stmt *pDel = 0;
+
+  assert( pConfig->eContent!=FTS5_CONTENT_NORMAL || apVal==0 );
+  rc = fts5StorageLoadTotals(p, 1);
+
+  /* Delete the index records */
+  if( rc==SQLITE_OK ){
+    rc = sqlite3Fts5IndexBeginWrite(p->pIndex, 1, iDel);
+  }
+
+  if( rc==SQLITE_OK ){
+    if( p->pConfig->bContentlessDelete ){
+      rc = fts5StorageContentlessDelete(p, iDel);
+      if( rc==SQLITE_OK 
+       && bSaveRow 
+       && p->pConfig->eContent==FTS5_CONTENT_UNINDEXED
+      ){
+        rc = sqlite3Fts5StorageFindDeleteRow(p, iDel);
+      }
+    }else{
+      rc = fts5StorageDeleteFromIndex(p, iDel, apVal, bSaveRow);
+    }
+  }
+
+  /* Delete the %_docsize record */
+  if( rc==SQLITE_OK && pConfig->bColumnsize ){
+    rc = fts5StorageGetStmt(p, FTS5_STMT_DELETE_DOCSIZE, &pDel, 0);
+    if( rc==SQLITE_OK ){
+      sqlite3_bind_int64(pDel, 1, iDel);
+      sqlite3_step(pDel);
+      rc = sqlite3_reset(pDel);
+    }
+  }
+
+  /* Delete the %_content record */
+  if( pConfig->eContent==FTS5_CONTENT_NORMAL 
+   || pConfig->eContent==FTS5_CONTENT_UNINDEXED 
+  ){
+    if( rc==SQLITE_OK ){
+      rc = fts5StorageGetStmt(p, FTS5_STMT_DELETE_CONTENT, &pDel, 0);
+    }
+    if( rc==SQLITE_OK ){
+      sqlite3_bind_int64(pDel, 1, iDel);
+      sqlite3_step(pDel);
+      rc = sqlite3_reset(pDel);
+    }
+  }
+
+  return rc;
+}
+
+/*
+** Delete all entries in the FTS5 index.
+*/
+int sqlite3Fts5StorageDeleteAll(Fts5Storage *p){
+  Fts5Config *pConfig = p->pConfig;
+  int rc;
+
+  p->bTotalsValid = 0;
+
+  /* Delete the contents of the %_data and %_docsize tables. */
+  rc = fts5ExecPrintf(pConfig->db, 0,
+      "DELETE FROM %Q.'%q_data';" 
+      "DELETE FROM %Q.'%q_idx';",
+      pConfig->zDb, pConfig->zName,
+      pConfig->zDb, pConfig->zName
+  );
+  if( rc==SQLITE_OK && pConfig->bColumnsize ){
+    rc = fts5ExecPrintf(pConfig->db, 0,
+        "DELETE FROM %Q.'%q_docsize';", pConfig->zDb, pConfig->zName
+    );
+  }
+
+  if( rc==SQLITE_OK && pConfig->eContent==FTS5_CONTENT_UNINDEXED ){
+    rc = fts5ExecPrintf(pConfig->db, 0,
+        "DELETE FROM %Q.'%q_content';", pConfig->zDb, pConfig->zName
+    );
+  }
+
+  /* Reinitialize the %_data table. This call creates the initial structure
+  ** and averages records.  */
+  if( rc==SQLITE_OK ){
+    rc = sqlite3Fts5IndexReinit(p->pIndex);
+  }
+  if( rc==SQLITE_OK ){
+    rc = sqlite3Fts5StorageConfigValue(p, "version", 0, FTS5_CURRENT_VERSION);
+  }
+  return rc;
+}
+
+int sqlite3Fts5StorageRebuild(Fts5Storage *p){
+  Fts5Buffer buf = {0,0,0};
+  Fts5Config *pConfig = p->pConfig;
+  sqlite3_stmt *pScan = 0;
+  Fts5InsertCtx ctx;
+  int rc, rc2;
+
+  memset(&ctx, 0, sizeof(Fts5InsertCtx));
+  ctx.pStorage = p;
+  rc = sqlite3Fts5StorageDeleteAll(p);
+  if( rc==SQLITE_OK ){
+    rc = fts5StorageLoadTotals(p, 1);
+  }
+
+  if( rc==SQLITE_OK ){
+    rc = fts5StorageGetStmt(p, FTS5_STMT_SCAN, &pScan, pConfig->pzErrmsg);
+  }
+
+  while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pScan) ){
+    i64 iRowid = sqlite3_column_int64(pScan, 0);
+
+    sqlite3Fts5BufferZero(&buf);
+    rc = sqlite3Fts5IndexBeginWrite(p->pIndex, 0, iRowid);
+    for(ctx.iCol=0; rc==SQLITE_OK && ctx.iCol<pConfig->nCol; ctx.iCol++){
+      ctx.szCol = 0;
+      if( pConfig->abUnindexed[ctx.iCol]==0 ){
+        int nText = 0;            /* Size of pText in bytes */
+        const char *pText = 0;    /* Pointer to buffer containing text value */
+        int nLoc = 0;             /* Size of pLoc in bytes */
+        const char *pLoc = 0;     /* Pointer to buffer containing text value */
+
+        sqlite3_value *pVal = sqlite3_column_value(pScan, ctx.iCol+1);
+        if( pConfig->eContent==FTS5_CONTENT_EXTERNAL
+         && sqlite3Fts5IsLocaleValue(pConfig, pVal)
+        ){
+          rc = sqlite3Fts5DecodeLocaleValue(pVal, &pText, &nText, &pLoc, &nLoc);
+        }else{
+          pText = (const char*)sqlite3_value_text(pVal);
+          nText = sqlite3_value_bytes(pVal);
+          if( pConfig->bLocale ){
+            int iCol = ctx.iCol + 1 + pConfig->nCol;
+            pLoc = (const char*)sqlite3_column_text(pScan, iCol);
+            nLoc = sqlite3_column_bytes(pScan, iCol);
+          }
+        }
+
+        if( rc==SQLITE_OK ){
+          sqlite3Fts5SetLocale(pConfig, pLoc, nLoc);
+          rc = sqlite3Fts5Tokenize(pConfig, 
+              FTS5_TOKENIZE_DOCUMENT,
+              pText, nText,
+              (void*)&ctx,
+              fts5StorageInsertCallback
+          );
+          sqlite3Fts5ClearLocale(pConfig);
+        }
+      }
+      sqlite3Fts5BufferAppendVarint(&rc, &buf, ctx.szCol);
+      p->aTotalSize[ctx.iCol] += (i64)ctx.szCol;
+    }
+    p->nTotalRow++;
+
+    if( rc==SQLITE_OK ){
+      rc = fts5StorageInsertDocsize(p, iRowid, &buf);
+    }
+  }
+  sqlite3_free(buf.p);
+  rc2 = sqlite3_reset(pScan);
+  if( rc==SQLITE_OK ) rc = rc2;
+
+  /* Write the averages record */
+  if( rc==SQLITE_OK ){
+    rc = fts5StorageSaveTotals(p);
+  }
+  return rc;
+}
+
+int sqlite3Fts5StorageOptimize(Fts5Storage *p){
+  return sqlite3Fts5IndexOptimize(p->pIndex);
+}
+
+int sqlite3Fts5StorageMerge(Fts5Storage *p, int nMerge){
+  return sqlite3Fts5IndexMerge(p->pIndex, nMerge);
+}
+
+int sqlite3Fts5StorageReset(Fts5Storage *p){
+  return sqlite3Fts5IndexReset(p->pIndex);
+}
+
+/*
+** Allocate a new rowid. This is used for "external content" tables when
+** a NULL value is inserted into the rowid column. The new rowid is allocated
+** by inserting a dummy row into the %_docsize table. The dummy will be
+** overwritten later.
+**
+** If the %_docsize table does not exist, SQLITE_MISMATCH is returned. In
+** this case the user is required to provide a rowid explicitly.
+*/
+static int fts5StorageNewRowid(Fts5Storage *p, i64 *piRowid){
+  int rc = SQLITE_MISMATCH;
+  if( p->pConfig->bColumnsize ){
+    sqlite3_stmt *pReplace = 0;
+    rc = fts5StorageGetStmt(p, FTS5_STMT_REPLACE_DOCSIZE, &pReplace, 0);
+    if( rc==SQLITE_OK ){
+      sqlite3_bind_null(pReplace, 1);
+      sqlite3_bind_null(pReplace, 2);
+      sqlite3_step(pReplace);
+      rc = sqlite3_reset(pReplace);
+    }
+    if( rc==SQLITE_OK ){
+      *piRowid = sqlite3_last_insert_rowid(p->pConfig->db);
+    }
+  }
+  return rc;
+}
+
+/*
+** Insert a new row into the FTS content table.
+*/
+int sqlite3Fts5StorageContentInsert(
+  Fts5Storage *p, 
+  int bReplace,                   /* True to use REPLACE instead of INSERT */
+  sqlite3_value **apVal, 
+  i64 *piRowid
+){
+  Fts5Config *pConfig = p->pConfig;
+  int rc = SQLITE_OK;
+
+  /* Insert the new row into the %_content table. */
+  if( pConfig->eContent!=FTS5_CONTENT_NORMAL 
+   && pConfig->eContent!=FTS5_CONTENT_UNINDEXED
+  ){
+    if( sqlite3_value_type(apVal[1])==SQLITE_INTEGER ){
+      *piRowid = sqlite3_value_int64(apVal[1]);
+    }else{
+      rc = fts5StorageNewRowid(p, piRowid);
+    }
+  }else{
+    sqlite3_stmt *pInsert = 0;    /* Statement to write %_content table */
+    int i;                        /* Counter variable */
+
+    assert( FTS5_STMT_INSERT_CONTENT+1==FTS5_STMT_REPLACE_CONTENT );
+    assert( bReplace==0 || bReplace==1 );
+    rc = fts5StorageGetStmt(p, FTS5_STMT_INSERT_CONTENT+bReplace, &pInsert, 0);
+    if( pInsert ) sqlite3_clear_bindings(pInsert);
+
+    /* Bind the rowid value */
+    sqlite3_bind_value(pInsert, 1, apVal[1]);
+
+    /* Loop through values for user-defined columns. i=2 is the leftmost
+    ** user-defined column. As is column 1 of pSavedRow.  */
+    for(i=2; rc==SQLITE_OK && i<=pConfig->nCol+1; i++){
+      int bUnindexed = pConfig->abUnindexed[i-2];
+      if( pConfig->eContent==FTS5_CONTENT_NORMAL || bUnindexed ){
+        sqlite3_value *pVal = apVal[i];
+
+        if( sqlite3_value_nochange(pVal) && p->pSavedRow ){
+          /* This is an UPDATE statement, and user-defined column (i-2) was not
+          ** modified.  Retrieve the value from Fts5Storage.pSavedRow.  */
+          pVal = sqlite3_column_value(p->pSavedRow, i-1);
+          if( pConfig->bLocale && bUnindexed==0 ){
+            sqlite3_bind_value(pInsert, pConfig->nCol + i,
+                sqlite3_column_value(p->pSavedRow, pConfig->nCol + i - 1)
+            );
+          }
+        }else if( sqlite3Fts5IsLocaleValue(pConfig, pVal) ){
+          const char *pText = 0;
+          const char *pLoc = 0;
+          int nText = 0;
+          int nLoc = 0;
+          assert( pConfig->bLocale );
+
+          rc = sqlite3Fts5DecodeLocaleValue(pVal, &pText, &nText, &pLoc, &nLoc);
+          if( rc==SQLITE_OK ){
+            sqlite3_bind_text(pInsert, i, pText, nText, SQLITE_TRANSIENT);
+            if( bUnindexed==0 ){
+              int iLoc = pConfig->nCol + i;
+              sqlite3_bind_text(pInsert, iLoc, pLoc, nLoc, SQLITE_TRANSIENT);
+            }
+          }
+
+          continue;
+        }
+
+        rc = sqlite3_bind_value(pInsert, i, pVal);
+      }
+    }
+    if( rc==SQLITE_OK ){
+      sqlite3_step(pInsert);
+      rc = sqlite3_reset(pInsert);
+    }
+    *piRowid = sqlite3_last_insert_rowid(pConfig->db);
+  }
+
+  return rc;
+}
+
+/*
+** Insert new entries into the FTS index and %_docsize table.
+*/
+int sqlite3Fts5StorageIndexInsert(
+  Fts5Storage *p, 
+  sqlite3_value **apVal, 
+  i64 iRowid
+){
+  Fts5Config *pConfig = p->pConfig;
+  int rc = SQLITE_OK;             /* Return code */
+  Fts5InsertCtx ctx;              /* Tokenization callback context object */
+  Fts5Buffer buf;                 /* Buffer used to build up %_docsize blob */
+
+  memset(&buf, 0, sizeof(Fts5Buffer));
+  ctx.pStorage = p;
+  rc = fts5StorageLoadTotals(p, 1);
+
+  if( rc==SQLITE_OK ){
+    rc = sqlite3Fts5IndexBeginWrite(p->pIndex, 0, iRowid);
+  }
+  for(ctx.iCol=0; rc==SQLITE_OK && ctx.iCol<pConfig->nCol; ctx.iCol++){
+    ctx.szCol = 0;
+    if( pConfig->abUnindexed[ctx.iCol]==0 ){
+      int nText = 0;              /* Size of pText in bytes */
+      const char *pText = 0;      /* Pointer to buffer containing text value */
+      int nLoc = 0;               /* Size of pText in bytes */
+      const char *pLoc = 0;       /* Pointer to buffer containing text value */
+
+      sqlite3_value *pVal = apVal[ctx.iCol+2];
+      if( p->pSavedRow && sqlite3_value_nochange(pVal) ){
+        pVal = sqlite3_column_value(p->pSavedRow, ctx.iCol+1);
+        if( pConfig->eContent==FTS5_CONTENT_NORMAL && pConfig->bLocale ){
+          int iCol = ctx.iCol + 1 + pConfig->nCol;
+          pLoc = (const char*)sqlite3_column_text(p->pSavedRow, iCol);
+          nLoc = sqlite3_column_bytes(p->pSavedRow, iCol);
+        }
+      }else{
+        pVal = apVal[ctx.iCol+2];
+      }
+
+      if( pConfig->bLocale && sqlite3Fts5IsLocaleValue(pConfig, pVal) ){
+        rc = sqlite3Fts5DecodeLocaleValue(pVal, &pText, &nText, &pLoc, &nLoc);
+      }else{
+        pText = (const char*)sqlite3_value_text(pVal);
+        nText = sqlite3_value_bytes(pVal);
+      }
+
+      if( rc==SQLITE_OK ){
+        sqlite3Fts5SetLocale(pConfig, pLoc, nLoc);
+        rc = sqlite3Fts5Tokenize(pConfig, 
+            FTS5_TOKENIZE_DOCUMENT, pText, nText, (void*)&ctx,
+            fts5StorageInsertCallback
+        );
+        sqlite3Fts5ClearLocale(pConfig);
+      }
+    }
+    sqlite3Fts5BufferAppendVarint(&rc, &buf, ctx.szCol);
+    p->aTotalSize[ctx.iCol] += (i64)ctx.szCol;
+  }
+  p->nTotalRow++;
+
+  /* Write the %_docsize record */
+  if( rc==SQLITE_OK ){
+    rc = fts5StorageInsertDocsize(p, iRowid, &buf);
+  }
+  sqlite3_free(buf.p);
+
+  return rc;
+}
+
+static int fts5StorageCount(Fts5Storage *p, const char *zSuffix, i64 *pnRow){
+  Fts5Config *pConfig = p->pConfig;
+  char *zSql;
+  int rc;
+
+  zSql = sqlite3_mprintf("SELECT count(*) FROM %Q.'%q_%s'", 
+      pConfig->zDb, pConfig->zName, zSuffix
+  );
+  if( zSql==0 ){
+    rc = SQLITE_NOMEM;
+  }else{
+    sqlite3_stmt *pCnt = 0;
+    rc = sqlite3_prepare_v2(pConfig->db, zSql, -1, &pCnt, 0);
+    if( rc==SQLITE_OK ){
+      if( SQLITE_ROW==sqlite3_step(pCnt) ){
+        *pnRow = sqlite3_column_int64(pCnt, 0);
+      }
+      rc = sqlite3_finalize(pCnt);
+    }
+  }
+
+  sqlite3_free(zSql);
+  return rc;
+}
+
+/*
+** Context object used by sqlite3Fts5StorageIntegrity().
+*/
+typedef struct Fts5IntegrityCtx Fts5IntegrityCtx;
+struct Fts5IntegrityCtx {
+  i64 iRowid;
+  int iCol;
+  int szCol;
+  u64 cksum;
+  Fts5Termset *pTermset;
+  Fts5Config *pConfig;
+};
+
+
+/*
+** Tokenization callback used by integrity check.
+*/
+static int fts5StorageIntegrityCallback(
+  void *pContext,                 /* Pointer to Fts5IntegrityCtx object */
+  int tflags,
+  const char *pToken,             /* Buffer containing token */
+  int nToken,                     /* Size of token in bytes */
+  int iUnused1,                   /* Start offset of token */
+  int iUnused2                    /* End offset of token */
+){
+  Fts5IntegrityCtx *pCtx = (Fts5IntegrityCtx*)pContext;
+  Fts5Termset *pTermset = pCtx->pTermset;
+  int bPresent;
+  int ii;
+  int rc = SQLITE_OK;
+  int iPos;
+  int iCol;
+
+  UNUSED_PARAM2(iUnused1, iUnused2);
+  if( nToken>FTS5_MAX_TOKEN_SIZE ) nToken = FTS5_MAX_TOKEN_SIZE;
+
+  if( (tflags & FTS5_TOKEN_COLOCATED)==0 || pCtx->szCol==0 ){
+    pCtx->szCol++;
+  }
+
+  switch( pCtx->pConfig->eDetail ){
+    case FTS5_DETAIL_FULL:
+      iPos = pCtx->szCol-1;
+      iCol = pCtx->iCol;
+      break;
+
+    case FTS5_DETAIL_COLUMNS:
+      iPos = pCtx->iCol;
+      iCol = 0;
+      break;
+
+    default:
+      assert( pCtx->pConfig->eDetail==FTS5_DETAIL_NONE );
+      iPos = 0;
+      iCol = 0;
+      break;
+  }
+
+  rc = sqlite3Fts5TermsetAdd(pTermset, 0, pToken, nToken, &bPresent);
+  if( rc==SQLITE_OK && bPresent==0 ){
+    pCtx->cksum ^= sqlite3Fts5IndexEntryCksum(
+        pCtx->iRowid, iCol, iPos, 0, pToken, nToken
+    );
+  }
+
+  for(ii=0; rc==SQLITE_OK && ii<pCtx->pConfig->nPrefix; ii++){
+    const int nChar = pCtx->pConfig->aPrefix[ii];
+    int nByte = sqlite3Fts5IndexCharlenToBytelen(pToken, nToken, nChar);
+    if( nByte ){
+      rc = sqlite3Fts5TermsetAdd(pTermset, ii+1, pToken, nByte, &bPresent);
+      if( bPresent==0 ){
+        pCtx->cksum ^= sqlite3Fts5IndexEntryCksum(
+            pCtx->iRowid, iCol, iPos, ii+1, pToken, nByte
+        );
+      }
+    }
+  }
+
+  return rc;
+}
+
+/*
+** Check that the contents of the FTS index match that of the %_content
+** table. Return SQLITE_OK if they do, or SQLITE_CORRUPT if not. Return
+** some other SQLite error code if an error occurs while attempting to
+** determine this.
+*/
+int sqlite3Fts5StorageIntegrity(Fts5Storage *p, int iArg){
+  Fts5Config *pConfig = p->pConfig;
+  int rc = SQLITE_OK;             /* Return code */
+  int *aColSize;                  /* Array of size pConfig->nCol */
+  i64 *aTotalSize;                /* Array of size pConfig->nCol */
+  Fts5IntegrityCtx ctx;
+  sqlite3_stmt *pScan;
+  int bUseCksum;
+
+  memset(&ctx, 0, sizeof(Fts5IntegrityCtx));
+  ctx.pConfig = p->pConfig;
+  aTotalSize = (i64*)sqlite3_malloc64(pConfig->nCol*(sizeof(int)+sizeof(i64)));
+  if( !aTotalSize ) return SQLITE_NOMEM;
+  aColSize = (int*)&aTotalSize[pConfig->nCol];
+  memset(aTotalSize, 0, sizeof(i64) * pConfig->nCol);
+
+  bUseCksum = (pConfig->eContent==FTS5_CONTENT_NORMAL
+           || (pConfig->eContent==FTS5_CONTENT_EXTERNAL && iArg)
+  );
+  if( bUseCksum ){
+    /* Generate the expected index checksum based on the contents of the
+    ** %_content table. This block stores the checksum in ctx.cksum. */
+    rc = fts5StorageGetStmt(p, FTS5_STMT_SCAN, &pScan, 0);
+    if( rc==SQLITE_OK ){
+      int rc2;
+      while( SQLITE_ROW==sqlite3_step(pScan) ){
+        int i;
+        ctx.iRowid = sqlite3_column_int64(pScan, 0);
+        ctx.szCol = 0;
+        if( pConfig->bColumnsize ){
+          rc = sqlite3Fts5StorageDocsize(p, ctx.iRowid, aColSize);
+        }
+        if( rc==SQLITE_OK && pConfig->eDetail==FTS5_DETAIL_NONE ){
+          rc = sqlite3Fts5TermsetNew(&ctx.pTermset);
+        }
+        for(i=0; rc==SQLITE_OK && i<pConfig->nCol; i++){
+          if( pConfig->abUnindexed[i]==0 ){
+            const char *pText = 0;
+            int nText = 0;
+            const char *pLoc = 0;
+            int nLoc = 0;
+            sqlite3_value *pVal = sqlite3_column_value(pScan, i+1);
+
+            if( pConfig->eContent==FTS5_CONTENT_EXTERNAL 
+             && sqlite3Fts5IsLocaleValue(pConfig, pVal)
+            ){
+              rc = sqlite3Fts5DecodeLocaleValue(
+                  pVal, &pText, &nText, &pLoc, &nLoc
+              );
+            }else{
+              if( pConfig->eContent==FTS5_CONTENT_NORMAL && pConfig->bLocale ){
+                int iCol = i + 1 + pConfig->nCol;
+                pLoc = (const char*)sqlite3_column_text(pScan, iCol);
+                nLoc = sqlite3_column_bytes(pScan, iCol);
+              }
+              pText = (const char*)sqlite3_value_text(pVal);
+              nText = sqlite3_value_bytes(pVal);
+            }
+
+            ctx.iCol = i;
+            ctx.szCol = 0;
+
+            if( rc==SQLITE_OK && pConfig->eDetail==FTS5_DETAIL_COLUMNS ){
+              rc = sqlite3Fts5TermsetNew(&ctx.pTermset);
+            }
+
+            if( rc==SQLITE_OK ){
+              sqlite3Fts5SetLocale(pConfig, pLoc, nLoc);
+              rc = sqlite3Fts5Tokenize(pConfig, 
+                  FTS5_TOKENIZE_DOCUMENT,
+                  pText, nText,
+                  (void*)&ctx,
+                  fts5StorageIntegrityCallback
+              );
+              sqlite3Fts5ClearLocale(pConfig);
+            }
+
+            /* If this is not a columnsize=0 database, check that the number
+            ** of tokens in the value matches the aColSize[] value read from
+            ** the %_docsize table.  */
+            if( rc==SQLITE_OK 
+             && pConfig->bColumnsize 
+             && ctx.szCol!=aColSize[i] 
+            ){
+              rc = FTS5_CORRUPT;
+            }
+            aTotalSize[i] += ctx.szCol;
+            if( pConfig->eDetail==FTS5_DETAIL_COLUMNS ){
+              sqlite3Fts5TermsetFree(ctx.pTermset);
+              ctx.pTermset = 0;
+            }
+          }
+        }
+        sqlite3Fts5TermsetFree(ctx.pTermset);
+        ctx.pTermset = 0;
+  
+        if( rc!=SQLITE_OK ) break;
+      }
+      rc2 = sqlite3_reset(pScan);
+      if( rc==SQLITE_OK ) rc = rc2;
+    }
+
+    /* Test that the "totals" (sometimes called "averages") record looks Ok */
+    if( rc==SQLITE_OK ){
+      int i;
+      rc = fts5StorageLoadTotals(p, 0);
+      for(i=0; rc==SQLITE_OK && i<pConfig->nCol; i++){
+        if( p->aTotalSize[i]!=aTotalSize[i] ) rc = FTS5_CORRUPT;
+      }
+    }
+
+    /* Check that the %_docsize and %_content tables contain the expected
+    ** number of rows.  */
+    if( rc==SQLITE_OK && pConfig->eContent==FTS5_CONTENT_NORMAL ){
+      i64 nRow = 0;
+      rc = fts5StorageCount(p, "content", &nRow);
+      if( rc==SQLITE_OK && nRow!=p->nTotalRow ) rc = FTS5_CORRUPT;
+    }
+    if( rc==SQLITE_OK && pConfig->bColumnsize ){
+      i64 nRow = 0;
+      rc = fts5StorageCount(p, "docsize", &nRow);
+      if( rc==SQLITE_OK && nRow!=p->nTotalRow ) rc = FTS5_CORRUPT;
+    }
+  }
+
+  /* Pass the expected checksum down to the FTS index module. It will
+  ** verify, amongst other things, that it matches the checksum generated by
+  ** inspecting the index itself.  */
+  if( rc==SQLITE_OK ){
+    rc = sqlite3Fts5IndexIntegrityCheck(p->pIndex, ctx.cksum, bUseCksum);
+  }
+
+  sqlite3_free(aTotalSize);
+  return rc;
+}
+
+/*
+** Obtain an SQLite statement handle that may be used to read data from the
+** %_content table.
+*/
+int sqlite3Fts5StorageStmt(
+  Fts5Storage *p, 
+  int eStmt, 
+  sqlite3_stmt **pp, 
+  char **pzErrMsg
+){
+  int rc;
+  assert( eStmt==FTS5_STMT_SCAN_ASC 
+       || eStmt==FTS5_STMT_SCAN_DESC
+       || eStmt==FTS5_STMT_LOOKUP
+  );
+  rc = fts5StorageGetStmt(p, eStmt, pp, pzErrMsg);
+  if( rc==SQLITE_OK ){
+    assert( p->aStmt[eStmt]==*pp );
+    p->aStmt[eStmt] = 0;
+  }
+  return rc;
+}
+
+/*
+** Release an SQLite statement handle obtained via an earlier call to
+** sqlite3Fts5StorageStmt(). The eStmt parameter passed to this function
+** must match that passed to the sqlite3Fts5StorageStmt() call.
+*/
+void sqlite3Fts5StorageStmtRelease(
+  Fts5Storage *p, 
+  int eStmt, 
+  sqlite3_stmt *pStmt
+){
+  assert( eStmt==FTS5_STMT_SCAN_ASC
+       || eStmt==FTS5_STMT_SCAN_DESC
+       || eStmt==FTS5_STMT_LOOKUP
+  );
+  if( p->aStmt[eStmt]==0 ){
+    sqlite3_reset(pStmt);
+    p->aStmt[eStmt] = pStmt;
+  }else{
+    sqlite3_finalize(pStmt);
+  }
+}
+
+static int fts5StorageDecodeSizeArray(
+  int *aCol, int nCol,            /* Array to populate */
+  const u8 *aBlob, int nBlob      /* Record to read varints from */
+){
+  int i;
+  int iOff = 0;
+  for(i=0; i<nCol; i++){
+    if( iOff>=nBlob ) return 1;
+    iOff += fts5GetVarint32(&aBlob[iOff], aCol[i]);
+  }
+  return (iOff!=nBlob);
+}
+
+/*
+** Argument aCol points to an array of integers containing one entry for
+** each table column. This function reads the %_docsize record for the
+** specified rowid and populates aCol[] with the results.
+**
+** An SQLite error code is returned if an error occurs, or SQLITE_OK
+** otherwise.
+*/
+int sqlite3Fts5StorageDocsize(Fts5Storage *p, i64 iRowid, int *aCol){
+  int nCol = p->pConfig->nCol;    /* Number of user columns in table */
+  sqlite3_stmt *pLookup = 0;      /* Statement to query %_docsize */
+  int rc;                         /* Return Code */
+
+  assert( p->pConfig->bColumnsize );
+  rc = fts5StorageGetStmt(p, FTS5_STMT_LOOKUP_DOCSIZE, &pLookup, 0);
+  if( pLookup ){
+    int bCorrupt = 1;
+    assert( rc==SQLITE_OK );
+    sqlite3_bind_int64(pLookup, 1, iRowid);
+    if( SQLITE_ROW==sqlite3_step(pLookup) ){
+      const u8 *aBlob = sqlite3_column_blob(pLookup, 0);
+      int nBlob = sqlite3_column_bytes(pLookup, 0);
+      if( 0==fts5StorageDecodeSizeArray(aCol, nCol, aBlob, nBlob) ){
+        bCorrupt = 0;
+      }
+    }
+    rc = sqlite3_reset(pLookup);
+    if( bCorrupt && rc==SQLITE_OK ){
+      rc = FTS5_CORRUPT;
+    }
+  }else{
+    assert( rc!=SQLITE_OK );
+  }
+
+  return rc;
+}
+
+int sqlite3Fts5StorageSize(Fts5Storage *p, int iCol, i64 *pnToken){
+  int rc = fts5StorageLoadTotals(p, 0);
+  if( rc==SQLITE_OK ){
+    *pnToken = 0;
+    if( iCol<0 ){
+      int i;
+      for(i=0; i<p->pConfig->nCol; i++){
+        *pnToken += p->aTotalSize[i];
+      }
+    }else if( iCol<p->pConfig->nCol ){
+      *pnToken = p->aTotalSize[iCol];
+    }else{
+      rc = SQLITE_RANGE;
+    }
+  }
+  return rc;
+}
+
+int sqlite3Fts5StorageRowCount(Fts5Storage *p, i64 *pnRow){
+  int rc = fts5StorageLoadTotals(p, 0);
+  if( rc==SQLITE_OK ){
+    /* nTotalRow being zero does not necessarily indicate a corrupt 
+    ** database - it might be that the FTS5 table really does contain zero
+    ** rows. However this function is only called from the xRowCount() API,
+    ** and there is no way for that API to be invoked if the table contains
+    ** no rows. Hence the FTS5_CORRUPT return.  */
+    *pnRow = p->nTotalRow;
+    if( p->nTotalRow<=0 ) rc = FTS5_CORRUPT;
+  }
+  return rc;
+}
+
+/*
+** Flush any data currently held in-memory to disk.
+*/
+int sqlite3Fts5StorageSync(Fts5Storage *p){
+  int rc = SQLITE_OK;
+  i64 iLastRowid = sqlite3_last_insert_rowid(p->pConfig->db);
+  if( p->bTotalsValid ){
+    rc = fts5StorageSaveTotals(p);
+    if( rc==SQLITE_OK ){
+      p->bTotalsValid = 0;
+    }
+  }
+  if( rc==SQLITE_OK ){
+    rc = sqlite3Fts5IndexSync(p->pIndex);
+  }
+  sqlite3_set_last_insert_rowid(p->pConfig->db, iLastRowid);
+  return rc;
+}
+
+int sqlite3Fts5StorageRollback(Fts5Storage *p){
+  p->bTotalsValid = 0;
+  return sqlite3Fts5IndexRollback(p->pIndex);
+}
+
+int sqlite3Fts5StorageConfigValue(
+  Fts5Storage *p, 
+  const char *z,
+  sqlite3_value *pVal,
+  int iVal
+){
+  sqlite3_stmt *pReplace = 0;
+  int rc = fts5StorageGetStmt(p, FTS5_STMT_REPLACE_CONFIG, &pReplace, 0);
+  if( rc==SQLITE_OK ){
+    sqlite3_bind_text(pReplace, 1, z, -1, SQLITE_STATIC);
+    if( pVal ){
+      sqlite3_bind_value(pReplace, 2, pVal);
+    }else{
+      sqlite3_bind_int(pReplace, 2, iVal);
+    }
+    sqlite3_step(pReplace);
+    rc = sqlite3_reset(pReplace);
+    sqlite3_bind_null(pReplace, 1);
+  }
+  if( rc==SQLITE_OK && pVal ){
+    int iNew = p->pConfig->iCookie + 1;
+    rc = sqlite3Fts5IndexSetCookie(p->pIndex, iNew);
+    if( rc==SQLITE_OK ){
+      p->pConfig->iCookie = iNew;
+    }
+  }
+  return rc;
+}
diff --git a/ext/fts5/fts5_tcl.c b/ext/fts5/fts5_tcl.c
new file mode 100644
index 0000000000000000000000000000000000000000..25cd5c063345727ab1d67e32116763c36110c61f
--- /dev/null
+++ b/ext/fts5/fts5_tcl.c
@@ -0,0 +1,1741 @@
+/*
+** 2014 Dec 01
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+*/
+
+
+#ifdef SQLITE_TEST
+#include "tclsqlite.h"
+
+#ifdef SQLITE_ENABLE_FTS5
+
+#include "fts5.h"
+#include <string.h>
+#include <assert.h>
+#include <stdlib.h>
+
+#ifdef SQLITE_DEBUG
+extern int sqlite3_fts5_may_be_corrupt;
+#endif
+extern int sqlite3Fts5TestRegisterMatchinfo(sqlite3*);
+extern int sqlite3Fts5TestRegisterTok(sqlite3*, fts5_api*);
+
+/*************************************************************************
+** This is a copy of the first part of the SqliteDb structure in 
+** tclsqlite.c.  We need it here so that the get_sqlite_pointer routine
+** can extract the sqlite3* pointer from an existing Tcl SQLite
+** connection.
+*/
+
+extern const char *sqlite3ErrName(int);
+
+struct SqliteDb {
+  sqlite3 *db;
+};
+
+/*
+** Decode a pointer to an sqlite3 object.
+*/
+static int f5tDbPointer(Tcl_Interp *interp, Tcl_Obj *pObj, sqlite3 **ppDb){
+  struct SqliteDb *p;
+  Tcl_CmdInfo cmdInfo;
+  char *z = Tcl_GetString(pObj);
+  if( Tcl_GetCommandInfo(interp, z, &cmdInfo) ){
+    p = (struct SqliteDb*)cmdInfo.objClientData;
+    *ppDb = p->db;
+    return TCL_OK;
+  }
+  return TCL_ERROR;
+}
+
+/* End of code that accesses the SqliteDb struct.
+**************************************************************************/
+
+static int f5tResultToErrorCode(const char *zRes){
+  struct ErrorCode {
+    int rc;
+    const char *zError;
+  } aErr[] = {
+    { SQLITE_DONE,  "SQLITE_DONE" },
+    { SQLITE_ERROR, "SQLITE_ERROR" },
+    { SQLITE_OK,    "SQLITE_OK" },
+    { SQLITE_OK,    "" },
+  };
+  int i;
+
+  for(i=0; i<sizeof(aErr)/sizeof(aErr[0]); i++){
+    if( 0==sqlite3_stricmp(zRes, aErr[i].zError) ){
+      return aErr[i].rc;
+    }
+  }
+
+  return SQLITE_ERROR;
+}
+
+static int SQLITE_TCLAPI f5tDbAndApi(
+  Tcl_Interp *interp, 
+  Tcl_Obj *pObj, 
+  sqlite3 **ppDb, 
+  fts5_api **ppApi
+){
+  sqlite3 *db = 0;
+  int rc = f5tDbPointer(interp, pObj, &db);
+  if( rc!=TCL_OK ){
+    return TCL_ERROR;
+  }else{
+    sqlite3_stmt *pStmt = 0;
+    fts5_api *pApi = 0;
+
+    rc = sqlite3_prepare_v2(db, "SELECT fts5(?1)", -1, &pStmt, 0);
+    if( rc!=SQLITE_OK ){
+      Tcl_AppendResult(interp, "error: ", sqlite3_errmsg(db), (char*)0);
+      return TCL_ERROR;
+    }
+    sqlite3_bind_pointer(pStmt, 1, (void*)&pApi, "fts5_api_ptr", 0);
+    sqlite3_step(pStmt);
+
+    if( sqlite3_finalize(pStmt)!=SQLITE_OK ){
+      Tcl_AppendResult(interp, "error: ", sqlite3_errmsg(db), (char*)0);
+      return TCL_ERROR;
+    }
+
+    *ppDb = db;
+    *ppApi = pApi;
+  }
+
+  return TCL_OK;
+}
+
+typedef struct F5tFunction F5tFunction;
+struct F5tFunction {
+  Tcl_Interp *interp;
+  Tcl_Obj *pScript;
+};
+
+typedef struct F5tApi F5tApi;
+struct F5tApi {
+  const Fts5ExtensionApi *pApi;
+  Fts5Context *pFts;
+};
+
+/*
+** An object of this type is used with the xSetAuxdata() and xGetAuxdata()
+** API test wrappers. The tcl interface allows a single tcl value to be 
+** saved using xSetAuxdata(). Instead of simply storing a pointer to the
+** tcl object, the code in this file wraps it in an sqlite3_malloc'd 
+** instance of the following struct so that if the destructor is not 
+** correctly invoked it will be reported as an SQLite memory leak.
+*/
+typedef struct F5tAuxData F5tAuxData;
+struct F5tAuxData {
+  Tcl_Obj *pObj;
+};
+
+static int xTokenizeCb(
+  void *pCtx, 
+  int tflags,
+  const char *zToken, int nToken, 
+  int iStart, int iEnd
+){
+  F5tFunction *p = (F5tFunction*)pCtx;
+  Tcl_Obj *pEval = Tcl_DuplicateObj(p->pScript);
+  int rc;
+
+  Tcl_IncrRefCount(pEval);
+  Tcl_ListObjAppendElement(p->interp, pEval, Tcl_NewStringObj(zToken, nToken));
+  Tcl_ListObjAppendElement(p->interp, pEval, Tcl_NewIntObj(iStart));
+  Tcl_ListObjAppendElement(p->interp, pEval, Tcl_NewIntObj(iEnd));
+
+  rc = Tcl_EvalObjEx(p->interp, pEval, 0);
+  Tcl_DecrRefCount(pEval);
+  if( rc==TCL_OK ){
+    rc = f5tResultToErrorCode(Tcl_GetStringResult(p->interp));
+  }
+
+  return rc;
+}
+
+static int SQLITE_TCLAPI xF5tApi(void*, Tcl_Interp*, int, Tcl_Obj *CONST []);
+
+static int xQueryPhraseCb(
+  const Fts5ExtensionApi *pApi, 
+  Fts5Context *pFts, 
+  void *pCtx
+){
+  F5tFunction *p = (F5tFunction*)pCtx;
+  static sqlite3_int64 iCmd = 0;
+  Tcl_Obj *pEval;
+  int rc;
+
+  char zCmd[64];
+  F5tApi sApi;
+
+  sApi.pApi = pApi;
+  sApi.pFts = pFts;
+  sprintf(zCmd, "f5t_2_%lld", iCmd++);
+  Tcl_CreateObjCommand(p->interp, zCmd, xF5tApi, &sApi, 0);
+
+  pEval = Tcl_DuplicateObj(p->pScript);
+  Tcl_IncrRefCount(pEval);
+  Tcl_ListObjAppendElement(p->interp, pEval, Tcl_NewStringObj(zCmd, -1));
+  rc = Tcl_EvalObjEx(p->interp, pEval, 0);
+  Tcl_DecrRefCount(pEval);
+  Tcl_DeleteCommand(p->interp, zCmd);
+
+  if( rc==TCL_OK ){
+    rc = f5tResultToErrorCode(Tcl_GetStringResult(p->interp));
+  }
+
+  return rc;
+}
+
+static void xSetAuxdataDestructor(void *p){
+  F5tAuxData *pData = (F5tAuxData*)p;
+  Tcl_DecrRefCount(pData->pObj);
+  sqlite3_free(pData);
+}
+
+/*
+**      api sub-command...
+**
+** Description...
+*/
+static int SQLITE_TCLAPI xF5tApi(
+  void * clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  struct Sub {
+    const char *zName;
+    int nArg;
+    const char *zMsg;
+  } aSub[] = {
+    { "xColumnCount",      0, "" },                   /*  0 */
+    { "xRowCount",         0, "" },                   /*  1 */
+    { "xColumnTotalSize",  1, "COL" },                /*  2 */
+    { "xTokenize",         2, "TEXT SCRIPT" },        /*  3 */
+    { "xPhraseCount",      0, "" },                   /*  4 */
+    { "xPhraseSize",       1, "PHRASE" },             /*  5 */
+    { "xInstCount",        0, "" },                   /*  6 */
+    { "xInst",             1, "IDX" },                /*  7 */
+    { "xRowid",            0, "" },                   /*  8 */
+    { "xColumnText",       1, "COL" },                /*  9 */
+    { "xColumnSize",       1, "COL" },                /* 10 */
+    { "xQueryPhrase",      2, "PHRASE SCRIPT" },      /* 11 */
+    { "xSetAuxdata",       1, "VALUE" },              /* 12 */
+    { "xGetAuxdata",       1, "CLEAR" },              /* 13 */
+    { "xSetAuxdataInt",    1, "INTEGER" },            /* 14 */
+    { "xGetAuxdataInt",    1, "CLEAR" },              /* 15 */
+    { "xPhraseForeach",    4, "IPHRASE COLVAR OFFVAR SCRIPT" }, /* 16 */
+    { "xPhraseColumnForeach", 3, "IPHRASE COLVAR SCRIPT" }, /* 17 */
+
+    { "xQueryToken",       2, "IPHRASE ITERM" },      /* 18 */
+    { "xInstToken",        2, "IDX ITERM" },          /* 19 */
+    { "xColumnLocale",     1, "COL" },                /* 20 */
+    { 0, 0, 0}
+  };
+
+  int rc;
+  int iSub = 0;
+  F5tApi *p = (F5tApi*)clientData;
+
+  if( objc<2 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "SUB-COMMAND");
+    return TCL_ERROR;
+  }
+
+  rc = Tcl_GetIndexFromObjStruct(
+      interp, objv[1], aSub, sizeof(aSub[0]), "SUB-COMMAND", 0, &iSub
+  );
+  if( rc!=TCL_OK ) return rc;
+  if( aSub[iSub].nArg!=objc-2 ){
+    Tcl_WrongNumArgs(interp, 1, objv, aSub[iSub].zMsg);
+    return TCL_ERROR;
+  }
+
+#define CASE(i,str) case i: assert( strcmp(aSub[i].zName, str)==0 );
+  switch( iSub ){
+    CASE(0, "xColumnCount") {
+      int nCol;
+      nCol = p->pApi->xColumnCount(p->pFts);
+      if( rc==SQLITE_OK ){
+        Tcl_SetObjResult(interp, Tcl_NewIntObj(nCol));
+      }
+      break;
+    }
+    CASE(1, "xRowCount") {
+      sqlite3_int64 nRow;
+      rc = p->pApi->xRowCount(p->pFts, &nRow);
+      if( rc==SQLITE_OK ){
+        Tcl_SetObjResult(interp, Tcl_NewWideIntObj(nRow));
+      }
+      break;
+    }
+    CASE(2, "xColumnTotalSize") {
+      int iCol;
+      sqlite3_int64 nSize;
+      if( Tcl_GetIntFromObj(interp, objv[2], &iCol) ) return TCL_ERROR;
+      rc = p->pApi->xColumnTotalSize(p->pFts, iCol, &nSize);
+      if( rc==SQLITE_OK ){
+        Tcl_SetObjResult(interp, Tcl_NewWideIntObj(nSize));
+      }
+      break;
+    }
+    CASE(3, "xTokenize") {
+      Tcl_Size nText;
+      char *zText = Tcl_GetStringFromObj(objv[2], &nText);
+      F5tFunction ctx;
+      ctx.interp = interp;
+      ctx.pScript = objv[3];
+      rc = p->pApi->xTokenize(p->pFts, zText, (int)nText, &ctx, xTokenizeCb);
+      if( rc==SQLITE_OK ){
+        Tcl_ResetResult(interp);
+      }
+      return rc;
+    }
+    CASE(4, "xPhraseCount") {
+      int nPhrase;
+      nPhrase = p->pApi->xPhraseCount(p->pFts);
+      if( rc==SQLITE_OK ){
+        Tcl_SetObjResult(interp, Tcl_NewIntObj(nPhrase));
+      }
+      break;
+    }
+    CASE(5, "xPhraseSize") {
+      int iPhrase;
+      int sz;
+      if( Tcl_GetIntFromObj(interp, objv[2], &iPhrase) ){
+        return TCL_ERROR;
+      }
+      sz = p->pApi->xPhraseSize(p->pFts, iPhrase);
+      if( rc==SQLITE_OK ){
+        Tcl_SetObjResult(interp, Tcl_NewIntObj(sz));
+      }
+      break;
+    }
+    CASE(6, "xInstCount") {
+      int nInst;
+      rc = p->pApi->xInstCount(p->pFts, &nInst);
+      if( rc==SQLITE_OK ){
+        Tcl_SetObjResult(interp, Tcl_NewIntObj(nInst));
+      }
+      break;
+    }
+    CASE(7, "xInst") {
+      int iIdx, ip, ic, io;
+      if( Tcl_GetIntFromObj(interp, objv[2], &iIdx) ){
+        return TCL_ERROR;
+      }
+      rc = p->pApi->xInst(p->pFts, iIdx, &ip, &ic, &io);
+      if( rc==SQLITE_OK ){
+        Tcl_Obj *pList = Tcl_NewObj();
+        Tcl_ListObjAppendElement(interp, pList, Tcl_NewIntObj(ip));
+        Tcl_ListObjAppendElement(interp, pList, Tcl_NewIntObj(ic));
+        Tcl_ListObjAppendElement(interp, pList, Tcl_NewIntObj(io));
+        Tcl_SetObjResult(interp, pList);
+      }
+      break;
+    }
+    CASE(8, "xRowid") {
+      sqlite3_int64 iRowid = p->pApi->xRowid(p->pFts);
+      Tcl_SetObjResult(interp, Tcl_NewWideIntObj(iRowid));
+      break;
+    }
+    CASE(9, "xColumnText") {
+      const char *z = 0;
+      int n = 0;
+      int iCol;
+      if( Tcl_GetIntFromObj(interp, objv[2], &iCol) ){
+        return TCL_ERROR;
+      }
+      rc = p->pApi->xColumnText(p->pFts, iCol, &z, &n);
+      if( rc==SQLITE_OK ){
+        Tcl_SetObjResult(interp, Tcl_NewStringObj(z, n));
+      }
+      break;
+    }
+    CASE(10, "xColumnSize") {
+      int n = 0;
+      int iCol;
+      if( Tcl_GetIntFromObj(interp, objv[2], &iCol) ){
+        return TCL_ERROR;
+      }
+      rc = p->pApi->xColumnSize(p->pFts, iCol, &n);
+      if( rc==SQLITE_OK ){
+        Tcl_SetObjResult(interp, Tcl_NewIntObj(n));
+      }
+      break;
+    }
+    CASE(11, "xQueryPhrase") {
+      int iPhrase;
+      F5tFunction ctx;
+      if( Tcl_GetIntFromObj(interp, objv[2], &iPhrase) ){
+        return TCL_ERROR;
+      }
+      ctx.interp = interp;
+      ctx.pScript = objv[3];
+      rc = p->pApi->xQueryPhrase(p->pFts, iPhrase, &ctx, xQueryPhraseCb);
+      if( rc==SQLITE_OK ){
+        Tcl_ResetResult(interp);
+      }
+      break;
+    }
+    CASE(12, "xSetAuxdata") {
+      F5tAuxData *pData = (F5tAuxData*)sqlite3_malloc(sizeof(F5tAuxData));
+      if( pData==0 ){
+        Tcl_AppendResult(interp, "out of memory", (char*)0);
+        return TCL_ERROR;
+      }
+      pData->pObj = objv[2];
+      Tcl_IncrRefCount(pData->pObj);
+      rc = p->pApi->xSetAuxdata(p->pFts, pData, xSetAuxdataDestructor);
+      break;
+    }
+    CASE(13, "xGetAuxdata") {
+      F5tAuxData *pData;
+      int bClear;
+      if( Tcl_GetBooleanFromObj(interp, objv[2], &bClear) ){
+        return TCL_ERROR;
+      }
+      pData = (F5tAuxData*)p->pApi->xGetAuxdata(p->pFts, bClear);
+      if( pData==0 ){
+        Tcl_ResetResult(interp);
+      }else{
+        Tcl_SetObjResult(interp, pData->pObj);
+        if( bClear ){
+          xSetAuxdataDestructor((void*)pData);
+        }
+      }
+      break;
+    }
+
+    /* These two - xSetAuxdataInt and xGetAuxdataInt - are similar to the
+    ** xSetAuxdata and xGetAuxdata methods implemented above. The difference
+    ** is that they may only save an integer value as auxiliary data, and
+    ** do not specify a destructor function.  */
+    CASE(14, "xSetAuxdataInt") {
+      int iVal;
+      if( Tcl_GetIntFromObj(interp, objv[2], &iVal) ) return TCL_ERROR;
+      rc = p->pApi->xSetAuxdata(p->pFts, (void*)((char*)0 + iVal), 0);
+      break;
+    }
+    CASE(15, "xGetAuxdataInt") {
+      int iVal;
+      int bClear;
+      if( Tcl_GetBooleanFromObj(interp, objv[2], &bClear) ) return TCL_ERROR;
+      iVal = (int)((char*)p->pApi->xGetAuxdata(p->pFts, bClear) - (char*)0);
+      Tcl_SetObjResult(interp, Tcl_NewIntObj(iVal));
+      break;
+    }
+
+    CASE(16, "xPhraseForeach") {
+      int iPhrase;
+      int iCol;
+      int iOff;
+      const char *zColvar;
+      const char *zOffvar;
+      Tcl_Obj *pScript = objv[5];
+      Fts5PhraseIter iter;
+
+      if( Tcl_GetIntFromObj(interp, objv[2], &iPhrase) ) return TCL_ERROR;
+      zColvar = Tcl_GetString(objv[3]);
+      zOffvar = Tcl_GetString(objv[4]);
+
+      rc = p->pApi->xPhraseFirst(p->pFts, iPhrase, &iter, &iCol, &iOff);
+      if( rc!=SQLITE_OK ){
+        Tcl_AppendResult(interp, sqlite3ErrName(rc), (char*)0);
+        return TCL_ERROR;
+      }
+      for( ;iCol>=0; p->pApi->xPhraseNext(p->pFts, &iter, &iCol, &iOff) ){
+        Tcl_SetVar2Ex(interp, zColvar, 0, Tcl_NewIntObj(iCol), 0);
+        Tcl_SetVar2Ex(interp, zOffvar, 0, Tcl_NewIntObj(iOff), 0);
+        rc = Tcl_EvalObjEx(interp, pScript, 0);
+        if( rc==TCL_CONTINUE ) rc = TCL_OK;
+        if( rc!=TCL_OK ){
+          if( rc==TCL_BREAK ) rc = TCL_OK;
+          break;
+        }
+      }
+
+      break;
+    }
+
+    CASE(17, "xPhraseColumnForeach") {
+      int iPhrase;
+      int iCol;
+      const char *zColvar;
+      Tcl_Obj *pScript = objv[4];
+      Fts5PhraseIter iter;
+
+      if( Tcl_GetIntFromObj(interp, objv[2], &iPhrase) ) return TCL_ERROR;
+      zColvar = Tcl_GetString(objv[3]);
+
+      rc = p->pApi->xPhraseFirstColumn(p->pFts, iPhrase, &iter, &iCol);
+      if( rc!=SQLITE_OK ){
+        Tcl_SetResult(interp, (char*)sqlite3ErrName(rc), TCL_VOLATILE);
+        return TCL_ERROR;
+      }
+      for( ; iCol>=0; p->pApi->xPhraseNextColumn(p->pFts, &iter, &iCol)){
+        Tcl_SetVar2Ex(interp, zColvar, 0, Tcl_NewIntObj(iCol), 0);
+        rc = Tcl_EvalObjEx(interp, pScript, 0);
+        if( rc==TCL_CONTINUE ) rc = TCL_OK;
+        if( rc!=TCL_OK ){
+          if( rc==TCL_BREAK ) rc = TCL_OK;
+          break;
+        }
+      }
+
+      break;
+    }
+
+    CASE(18, "xQueryToken") {
+      const char *pTerm = 0;
+      int nTerm = 0;
+      int iPhrase = 0;
+      int iTerm = 0;
+
+      if( Tcl_GetIntFromObj(interp, objv[2], &iPhrase) ) return TCL_ERROR;
+      if( Tcl_GetIntFromObj(interp, objv[3], &iTerm) ) return TCL_ERROR;
+      rc = p->pApi->xQueryToken(p->pFts, iPhrase, iTerm, &pTerm, &nTerm);
+      if( rc==SQLITE_OK ){
+        Tcl_SetObjResult(interp, Tcl_NewStringObj(pTerm, nTerm));
+      }
+
+      break;
+    }
+
+    CASE(19, "xInstToken") {
+      const char *pTerm = 0;
+      int nTerm = 0;
+      int iIdx = 0;
+      int iTerm = 0;
+
+      if( Tcl_GetIntFromObj(interp, objv[2], &iIdx) ) return TCL_ERROR;
+      if( Tcl_GetIntFromObj(interp, objv[3], &iTerm) ) return TCL_ERROR;
+      rc = p->pApi->xInstToken(p->pFts, iIdx, iTerm, &pTerm, &nTerm);
+      if( rc==SQLITE_OK ){
+        Tcl_SetObjResult(interp, Tcl_NewStringObj(pTerm, nTerm));
+      }
+
+      break;
+    }
+
+    CASE(20, "xColumnLocale") {
+      const char *z = 0;
+      int n = 0;
+      int iCol;
+      if( Tcl_GetIntFromObj(interp, objv[2], &iCol) ){
+        return TCL_ERROR;
+      }
+      rc = p->pApi->xColumnLocale(p->pFts, iCol, &z, &n);
+      if( rc==SQLITE_OK && z ){
+        Tcl_SetObjResult(interp, Tcl_NewStringObj(z, n));
+      }
+      break;
+    }
+
+    default: 
+      assert( 0 );
+      break;
+  }
+#undef CASE
+
+  if( rc!=SQLITE_OK ){
+    Tcl_SetResult(interp, (char*)sqlite3ErrName(rc), TCL_VOLATILE);
+    return TCL_ERROR;
+  }
+
+  return TCL_OK;
+}
+
+static void xF5tFunction(
+  const Fts5ExtensionApi *pApi,   /* API offered by current FTS version */
+  Fts5Context *pFts,              /* First arg to pass to pApi functions */
+  sqlite3_context *pCtx,          /* Context for returning result/error */
+  int nVal,                       /* Number of values in apVal[] array */
+  sqlite3_value **apVal           /* Array of trailing arguments */
+){
+  F5tFunction *p = (F5tFunction*)pApi->xUserData(pFts);
+  Tcl_Obj *pEval;                 /* Script to evaluate */
+  int i;
+  int rc;
+
+  static sqlite3_int64 iCmd = 0;
+  char zCmd[64];
+  F5tApi sApi;
+  sApi.pApi = pApi;
+  sApi.pFts = pFts;
+
+  sprintf(zCmd, "f5t_%lld", iCmd++);
+  Tcl_CreateObjCommand(p->interp, zCmd, xF5tApi, &sApi, 0);
+  pEval = Tcl_DuplicateObj(p->pScript);
+  Tcl_IncrRefCount(pEval);
+  Tcl_ListObjAppendElement(p->interp, pEval, Tcl_NewStringObj(zCmd, -1));
+
+  for(i=0; i<nVal; i++){
+    Tcl_Obj *pObj = 0;
+    switch( sqlite3_value_type(apVal[i]) ){
+      case SQLITE_TEXT:
+        pObj = Tcl_NewStringObj((const char*)sqlite3_value_text(apVal[i]), -1);
+        break;
+      case SQLITE_BLOB:
+        pObj = Tcl_NewByteArrayObj(
+            sqlite3_value_blob(apVal[i]), sqlite3_value_bytes(apVal[i])
+        );
+        break;
+      case SQLITE_INTEGER:
+        pObj = Tcl_NewWideIntObj(sqlite3_value_int64(apVal[i]));
+        break;
+      case SQLITE_FLOAT:
+        pObj = Tcl_NewDoubleObj(sqlite3_value_double(apVal[i]));
+        break;
+      default:
+        pObj = Tcl_NewObj();
+        break;
+    }
+    Tcl_ListObjAppendElement(p->interp, pEval, pObj);
+  }
+
+  rc = Tcl_EvalObjEx(p->interp, pEval, TCL_GLOBAL_ONLY);
+  Tcl_DecrRefCount(pEval);
+  Tcl_DeleteCommand(p->interp, zCmd);
+
+  if( rc!=TCL_OK ){
+    sqlite3_result_error(pCtx, Tcl_GetStringResult(p->interp), -1);
+  }else{
+    Tcl_Obj *pVar = Tcl_GetObjResult(p->interp);
+    const char *zType = (pVar->typePtr ? pVar->typePtr->name : "");
+    char c = zType[0];
+    if( c=='b' && strcmp(zType,"bytearray")==0 && pVar->bytes==0 ){
+      /* Only return a BLOB type if the Tcl variable is a bytearray and
+      ** has no string representation. */
+      Tcl_Size nn;
+      unsigned char *data = Tcl_GetByteArrayFromObj(pVar, &nn);
+      sqlite3_result_blob(pCtx, data, (int)nn, SQLITE_TRANSIENT);
+    }else if( c=='b' && strcmp(zType,"boolean")==0 ){
+      int n;
+      Tcl_GetIntFromObj(0, pVar, &n);
+      sqlite3_result_int(pCtx, n);
+    }else if( c=='d' && strcmp(zType,"double")==0 ){
+      double r;
+      Tcl_GetDoubleFromObj(0, pVar, &r);
+      sqlite3_result_double(pCtx, r);
+    }else if( (c=='w' && strcmp(zType,"wideInt")==0) ||
+          (c=='i' && strcmp(zType,"int")==0) ){
+      Tcl_WideInt v;
+      Tcl_GetWideIntFromObj(0, pVar, &v);
+      sqlite3_result_int64(pCtx, v);
+    }else{
+      Tcl_Size nn;
+      unsigned char *data = (unsigned char *)Tcl_GetStringFromObj(pVar, &nn);
+      sqlite3_result_text(pCtx, (char*)data, (int)nn, SQLITE_TRANSIENT);
+    }
+  }
+}
+
+static void xF5tDestroy(void *pCtx){
+  F5tFunction *p = (F5tFunction*)pCtx;
+  Tcl_DecrRefCount(p->pScript);
+  ckfree((char *)p);
+}
+
+/*
+**      sqlite3_fts5_create_function DB NAME SCRIPT
+**
+** Description...
+*/
+static int SQLITE_TCLAPI f5tCreateFunction(
+  void * clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  char *zName;
+  Tcl_Obj *pScript;
+  sqlite3 *db = 0;
+  fts5_api *pApi = 0;
+  F5tFunction *pCtx = 0;
+  int rc;
+
+  if( objc!=4 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "DB NAME SCRIPT");
+    return TCL_ERROR;
+  }
+  if( f5tDbAndApi(interp, objv[1], &db, &pApi) ) return TCL_ERROR;
+
+  zName = Tcl_GetString(objv[2]);
+  pScript = objv[3];
+  pCtx = (F5tFunction*)ckalloc(sizeof(F5tFunction));
+  pCtx->interp = interp;
+  pCtx->pScript = pScript;
+  Tcl_IncrRefCount(pScript);
+
+  rc = pApi->xCreateFunction(
+      pApi, zName, (void*)pCtx, xF5tFunction, xF5tDestroy
+  );
+  if( rc!=SQLITE_OK ){
+    Tcl_AppendResult(interp, "error: ", sqlite3_errmsg(db), (char*)0);
+    return TCL_ERROR;
+  }
+
+  return TCL_OK;
+}
+
+typedef struct F5tTokenizeCtx F5tTokenizeCtx;
+struct F5tTokenizeCtx {
+  Tcl_Obj *pRet;
+  int bSubst;
+  const char *zInput;
+};
+
+static int xTokenizeCb2(
+  void *pCtx, 
+  int tflags,
+  const char *zToken, int nToken, 
+  int iStart, int iEnd
+){
+  F5tTokenizeCtx *p = (F5tTokenizeCtx*)pCtx;
+  if( p->bSubst ){
+    Tcl_ListObjAppendElement(0, p->pRet, Tcl_NewStringObj(zToken, nToken));
+    Tcl_ListObjAppendElement(
+        0, p->pRet, Tcl_NewStringObj(&p->zInput[iStart], iEnd-iStart)
+    );
+  }else{
+    Tcl_ListObjAppendElement(0, p->pRet, Tcl_NewStringObj(zToken, nToken));
+    Tcl_ListObjAppendElement(0, p->pRet, Tcl_NewIntObj(iStart));
+    Tcl_ListObjAppendElement(0, p->pRet, Tcl_NewIntObj(iEnd));
+  }
+  return SQLITE_OK;
+}
+
+
+/*
+**      sqlite3_fts5_tokenize DB TOKENIZER TEXT
+**
+** Description...
+*/
+static int SQLITE_TCLAPI f5tTokenize(
+  void * clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  char *pCopy = 0;
+  char *zText = 0;
+  Tcl_Size nText = 0;
+  sqlite3 *db = 0;
+  fts5_api *pApi = 0;
+  Fts5Tokenizer *pTok = 0;
+  fts5_tokenizer tokenizer;
+  Tcl_Obj *pRet = 0;
+  void *pUserdata;
+  int rc;
+
+  Tcl_Size nArg;
+  const char **azArg;
+  F5tTokenizeCtx ctx;
+
+  if( objc!=4 && objc!=5 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "?-subst? DB NAME TEXT");
+    return TCL_ERROR;
+  }
+  if( objc==5 ){
+    char *zOpt = Tcl_GetString(objv[1]);
+    if( strcmp("-subst", zOpt) ){
+      Tcl_AppendResult(interp, "unrecognized option: ", zOpt, (char*)0);
+      return TCL_ERROR;
+    }
+  }
+  if( f5tDbAndApi(interp, objv[objc-3], &db, &pApi) ) return TCL_ERROR;
+  if( Tcl_SplitList(interp, Tcl_GetString(objv[objc-2]), &nArg, &azArg) ){
+    return TCL_ERROR;
+  }
+  if( nArg==0 ){
+    Tcl_AppendResult(interp, "no such tokenizer: ", (char*)0);
+    Tcl_Free((void*)azArg);
+    return TCL_ERROR;
+  }
+  zText = Tcl_GetStringFromObj(objv[objc-1], &nText);
+
+  rc = pApi->xFindTokenizer(pApi, azArg[0], &pUserdata, &tokenizer);
+  if( rc!=SQLITE_OK ){
+    Tcl_AppendResult(interp, "no such tokenizer: ", azArg[0], (char*)0);
+    return TCL_ERROR;
+  }
+
+  rc = tokenizer.xCreate(pUserdata, &azArg[1], (int)(nArg-1), &pTok);
+  if( rc!=SQLITE_OK ){
+    Tcl_AppendResult(interp, "error in tokenizer.xCreate()", (char*)0);
+    return TCL_ERROR;
+  }
+
+  if( nText>0 ){
+    pCopy = sqlite3_malloc(nText);
+    if( pCopy==0 ){
+      tokenizer.xDelete(pTok);
+      Tcl_AppendResult(interp, "error in sqlite3_malloc()", (char*)0);
+      return TCL_ERROR;
+    }else{
+      memcpy(pCopy, zText, nText);
+    }
+  }
+
+  pRet = Tcl_NewObj();
+  Tcl_IncrRefCount(pRet);
+  ctx.bSubst = (objc==5);
+  ctx.pRet = pRet;
+  ctx.zInput = pCopy;
+  rc = tokenizer.xTokenize(
+      pTok, (void*)&ctx, FTS5_TOKENIZE_DOCUMENT, pCopy,(int)nText, xTokenizeCb2
+  );
+  tokenizer.xDelete(pTok);
+  sqlite3_free(pCopy);
+  if( rc!=SQLITE_OK ){
+    Tcl_AppendResult(interp, "error in tokenizer.xTokenize()", (char*)0);
+    Tcl_DecrRefCount(pRet);
+    return TCL_ERROR;
+  }
+
+  Tcl_Free((void*)azArg);
+  Tcl_SetObjResult(interp, pRet);
+  Tcl_DecrRefCount(pRet);
+  return TCL_OK;
+}
+
+/*************************************************************************
+** Start of tokenizer wrapper.
+*/
+
+typedef struct F5tTokenizerContext F5tTokenizerContext;
+typedef struct F5tTokenizerCb F5tTokenizerCb;
+typedef struct F5tTokenizerModule F5tTokenizerModule;
+typedef struct F5tTokenizerInstance F5tTokenizerInstance;
+
+struct F5tTokenizerContext {
+  void *pCtx;
+  int (*xToken)(void*, int, const char*, int, int, int);
+  F5tTokenizerInstance *pInst;
+};
+
+struct F5tTokenizerModule {
+  Tcl_Interp *interp;
+  Tcl_Obj *pScript;
+  void *pParentCtx;
+  fts5_tokenizer_v2 parent_v2;
+  fts5_tokenizer parent;
+  F5tTokenizerContext *pContext;
+};
+
+/*
+** zLocale:
+**   Within a call to xTokenize_v2(), pLocale/nLocale store the locale
+**   passed to the call by fts5. This can be retrieved by a Tcl tokenize 
+**   script using [sqlite3_fts5_locale].
+*/
+struct F5tTokenizerInstance {
+  Tcl_Interp *interp;
+  Tcl_Obj *pScript;
+  F5tTokenizerModule *pModule;
+  Fts5Tokenizer *pParent;
+  F5tTokenizerContext *pContext;
+  const char *pLocale;
+  int nLocale;
+};
+
+static int f5tTokenizerCreate(
+  void *pCtx, 
+  const char **azArg, 
+  int nArg, 
+  Fts5Tokenizer **ppOut
+){
+  Fts5Tokenizer *pParent = 0;
+  F5tTokenizerModule *pMod = (F5tTokenizerModule*)pCtx;
+  Tcl_Obj *pEval;
+  int rc = TCL_OK;
+  int i;
+
+  assert( pMod->parent_v2.xCreate==0 || pMod->parent.xCreate==0 );
+  if( pMod->parent_v2.xCreate ){
+    rc = pMod->parent_v2.xCreate(pMod->pParentCtx, 0, 0, &pParent);
+  }
+  if( pMod->parent.xCreate ){
+    rc = pMod->parent.xCreate(pMod->pParentCtx, 0, 0, &pParent);
+  }
+
+  pEval = Tcl_DuplicateObj(pMod->pScript);
+  Tcl_IncrRefCount(pEval);
+  for(i=0; rc==TCL_OK && i<nArg; i++){
+    Tcl_Obj *pObj = Tcl_NewStringObj(azArg[i], -1);
+    rc = Tcl_ListObjAppendElement(pMod->interp, pEval, pObj);
+  }
+
+  if( rc==TCL_OK ){
+    rc = Tcl_EvalObjEx(pMod->interp, pEval, TCL_GLOBAL_ONLY);
+  }
+  Tcl_DecrRefCount(pEval);
+
+  if( rc==TCL_OK ){
+    F5tTokenizerInstance *pInst;
+    pInst = (F5tTokenizerInstance*)ckalloc(sizeof(F5tTokenizerInstance));
+    memset(pInst, 0, sizeof(F5tTokenizerInstance));
+    pInst->interp = pMod->interp;
+    pInst->pScript = Tcl_GetObjResult(pMod->interp);
+    pInst->pContext = pMod->pContext;
+    pInst->pParent = pParent;
+    pInst->pModule = pMod;
+    Tcl_IncrRefCount(pInst->pScript);
+    *ppOut = (Fts5Tokenizer*)pInst;
+  }
+
+  return rc;
+}
+
+
+static void f5tTokenizerDelete(Fts5Tokenizer *p){
+  F5tTokenizerInstance *pInst = (F5tTokenizerInstance*)p;
+  if( pInst ){
+    if( pInst->pParent ){
+      if( pInst->pModule->parent_v2.xDelete ){
+        pInst->pModule->parent_v2.xDelete(pInst->pParent);
+      }else{
+        pInst->pModule->parent.xDelete(pInst->pParent);
+      }
+    }
+    Tcl_DecrRefCount(pInst->pScript);
+    ckfree((char *)pInst);
+  }
+}
+
+
+static int f5tTokenizerReallyTokenize(
+  Fts5Tokenizer *p, 
+  void *pCtx,
+  int flags,
+  const char *pText, int nText, 
+  int (*xToken)(void*, int, const char*, int, int, int)
+){
+  F5tTokenizerInstance *pInst = (F5tTokenizerInstance*)p;
+  F5tTokenizerInstance *pOldInst = 0;
+  void *pOldCtx;
+  int (*xOldToken)(void*, int, const char*, int, int, int);
+  Tcl_Obj *pEval;
+  int rc;
+  const char *zFlags;
+
+  pOldCtx = pInst->pContext->pCtx;
+  xOldToken = pInst->pContext->xToken;
+  pOldInst = pInst->pContext->pInst;
+
+  pInst->pContext->pCtx = pCtx;
+  pInst->pContext->xToken = xToken;
+  pInst->pContext->pInst = pInst;
+
+  assert( 
+      flags==FTS5_TOKENIZE_DOCUMENT
+   || flags==FTS5_TOKENIZE_AUX
+   || flags==FTS5_TOKENIZE_QUERY
+   || flags==(FTS5_TOKENIZE_QUERY | FTS5_TOKENIZE_PREFIX)
+  );
+  pEval = Tcl_DuplicateObj(pInst->pScript);
+  Tcl_IncrRefCount(pEval);
+  switch( flags ){
+    case FTS5_TOKENIZE_DOCUMENT:
+      zFlags = "document";
+      break;
+    case FTS5_TOKENIZE_AUX:
+      zFlags = "aux";
+      break;
+    case FTS5_TOKENIZE_QUERY:
+      zFlags = "query";
+      break;
+    case (FTS5_TOKENIZE_PREFIX | FTS5_TOKENIZE_QUERY):
+      zFlags = "prefixquery";
+      break;
+    default:
+      assert( 0 );
+      zFlags = "invalid";
+      break;
+  }
+
+  Tcl_ListObjAppendElement(pInst->interp, pEval, Tcl_NewStringObj(zFlags, -1));
+  Tcl_ListObjAppendElement(pInst->interp, pEval, Tcl_NewStringObj(pText,nText));
+  rc = Tcl_EvalObjEx(pInst->interp, pEval, TCL_GLOBAL_ONLY);
+  Tcl_DecrRefCount(pEval);
+
+  pInst->pContext->pCtx = pOldCtx;
+  pInst->pContext->xToken = xOldToken;
+  pInst->pContext->pInst = pOldInst;
+  return rc;
+}
+
+typedef struct CallbackCtx CallbackCtx;
+struct CallbackCtx {
+  Fts5Tokenizer *p;
+  void *pCtx;
+  int flags;
+  int (*xToken)(void*, int, const char*, int, int, int);
+};
+
+static int f5tTokenizeCallback(
+  void *pCtx, 
+  int tflags, 
+  const char *z, int n, 
+  int iStart, int iEnd
+){
+  CallbackCtx *p = (CallbackCtx*)pCtx;
+  return f5tTokenizerReallyTokenize(p->p, p->pCtx, p->flags, z, n, p->xToken);
+}
+
+static int f5tTokenizerTokenize_v2(
+  Fts5Tokenizer *p, 
+  void *pCtx,
+  int flags,
+  const char *pText, int nText, 
+  const char *pLoc, int nLoc, 
+  int (*xToken)(void*, int, const char*, int, int, int)
+){
+  int rc = SQLITE_OK;
+  F5tTokenizerInstance *pInst = (F5tTokenizerInstance*)p;
+
+  pInst->pLocale = pLoc;
+  pInst->nLocale = nLoc;
+
+  if( pInst->pParent ){
+    CallbackCtx ctx;
+    ctx.p = p;
+    ctx.pCtx = pCtx;
+    ctx.flags = flags;
+    ctx.xToken = xToken;
+    if( pInst->pModule->parent_v2.xTokenize ){
+      rc = pInst->pModule->parent_v2.xTokenize(
+          pInst->pParent, (void*)&ctx, flags, pText, nText, 
+          pLoc, nLoc, f5tTokenizeCallback
+      );
+    }else{
+      rc = pInst->pModule->parent.xTokenize(
+          pInst->pParent, (void*)&ctx, flags, pText, nText, f5tTokenizeCallback
+      );
+    }
+  }else{
+    rc = f5tTokenizerReallyTokenize(p, pCtx, flags, pText, nText, xToken);
+  }
+
+  pInst->pLocale = 0;
+  pInst->nLocale = 0;
+  return rc;
+}
+static int f5tTokenizerTokenize(
+  Fts5Tokenizer *p, 
+  void *pCtx,
+  int flags,
+  const char *pText, int nText, 
+  int (*xToken)(void*, int, const char*, int, int, int)
+){
+  return f5tTokenizerTokenize_v2(p, pCtx, flags, pText, nText, 0, 0, xToken);
+}
+
+/*
+** sqlite3_fts5_locale 
+*/
+static int SQLITE_TCLAPI f5tTokenizerLocale(
+  void * clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  F5tTokenizerContext *p = (F5tTokenizerContext*)clientData;
+
+  if( objc!=1 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "");
+    return TCL_ERROR;
+  }
+
+  if( p->xToken==0 ){
+    Tcl_AppendResult(interp, 
+        "sqlite3_fts5_locale may only be used by tokenizer callback", (char*)0
+    );
+    return TCL_ERROR;
+  }
+
+  Tcl_SetObjResult(interp, 
+      Tcl_NewStringObj(p->pInst->pLocale, p->pInst->nLocale)
+  );
+  return TCL_OK;
+}
+
+/*
+** sqlite3_fts5_token ?-colocated? TEXT START END
+*/
+static int SQLITE_TCLAPI f5tTokenizerReturn(
+  void * clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  F5tTokenizerContext *p = (F5tTokenizerContext*)clientData;
+  int iStart;
+  int iEnd;
+  Tcl_Size nToken;
+  int tflags = 0;
+  char *zToken;
+  int rc;
+
+  if( objc==5 ){
+    Tcl_Size nArg;
+    char *zArg = Tcl_GetStringFromObj(objv[1], &nArg);
+    if( nArg<=10 && nArg>=2 && memcmp("-colocated", zArg, nArg)==0 ){
+      tflags |= FTS5_TOKEN_COLOCATED;
+    }else{
+      goto usage;
+    }
+  }else if( objc!=4 ){
+    goto usage;
+  }
+
+  zToken = Tcl_GetStringFromObj(objv[objc-3], &nToken);
+  if( Tcl_GetIntFromObj(interp, objv[objc-2], &iStart) 
+   || Tcl_GetIntFromObj(interp, objv[objc-1], &iEnd) 
+  ){
+    return TCL_ERROR;
+  }
+
+  if( p->xToken==0 ){
+    Tcl_AppendResult(interp, 
+        "sqlite3_fts5_token may only be used by tokenizer callback", (char*)0
+    );
+    return TCL_ERROR;
+  }
+
+  rc = p->xToken(p->pCtx, tflags, zToken, (int)nToken, iStart, iEnd);
+  Tcl_SetResult(interp, (char*)sqlite3ErrName(rc), TCL_VOLATILE);
+  return rc==SQLITE_OK ? TCL_OK : TCL_ERROR;
+
+ usage:
+  Tcl_WrongNumArgs(interp, 1, objv, "?-colocated? TEXT START END");
+  return TCL_ERROR;
+}
+
+static void f5tDelTokenizer(void *pCtx){
+  F5tTokenizerModule *pMod = (F5tTokenizerModule*)pCtx;
+  Tcl_DecrRefCount(pMod->pScript);
+  ckfree((char *)pMod);
+}
+
+/*
+**      sqlite3_fts5_create_tokenizer DB NAME SCRIPT
+**
+** Register a tokenizer named NAME implemented by script SCRIPT. When
+** a tokenizer instance is created (fts5_tokenizer.xCreate), any tokenizer
+** arguments are appended to SCRIPT and the result executed.
+**
+** The value returned by (SCRIPT + args) is itself a tcl script. This 
+** script - call it SCRIPT2 - is executed to tokenize text using the
+** tokenizer instance "returned" by SCRIPT. Specifically, to tokenize
+** text SCRIPT2 is invoked with a single argument appended to it - the
+** text to tokenize.
+**
+** SCRIPT2 should invoke the [sqlite3_fts5_token] command once for each
+** token within the tokenized text.
+*/
+static int SQLITE_TCLAPI f5tCreateTokenizer(
+  ClientData clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  F5tTokenizerContext *pContext = (F5tTokenizerContext*)clientData;
+  sqlite3 *db;
+  fts5_api *pApi;
+  char *zName;
+  Tcl_Obj *pScript;
+  F5tTokenizerModule *pMod;
+  int rc = SQLITE_OK;
+  int bV2 = 0;                    /* True to use _v2 API */
+  int iVersion = 2;               /* Value for _v2.iVersion */
+  const char *zParent = 0;        /* Name of parent tokenizer, if any */
+  int ii = 0;
+
+  if( objc<4 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "?OPTIONS? DB NAME SCRIPT");
+    return TCL_ERROR;
+  }
+
+  /* Parse any options. Set stack variables bV2 and zParent. */
+  for(ii=1; ii<objc-3; ii++){
+    int iOpt = 0;
+    const char *azOpt[] = { "-v2", "-parent", "-version", 0 };
+    if( Tcl_GetIndexFromObj(interp, objv[ii], azOpt, "OPTION", 0, &iOpt) ){
+      return TCL_ERROR;
+    }
+    switch( iOpt ){
+      case 0: /* -v2 */ {
+        bV2 = 1;
+        break;
+      }
+      case 1: /* -parent */ {
+        ii++;
+        if( ii==objc-3 ){
+          Tcl_AppendResult(
+              interp, "option requires an argument: -parent", (char*)0
+          );
+          return TCL_ERROR;
+        }
+        zParent = Tcl_GetString(objv[ii]);
+        break;
+      }
+      case 2: /* -version */ {
+        ii++;
+        if( ii==objc-3 ){
+          Tcl_AppendResult(
+              interp, "option requires an argument: -version", (char*)0
+          );
+          return TCL_ERROR;
+        }
+        if( Tcl_GetIntFromObj(interp, objv[ii], &iVersion) ){
+          return TCL_ERROR;
+        }
+        break;
+      }
+      default:
+        assert( 0 );
+        break;
+    }
+  }
+
+  if( f5tDbAndApi(interp, objv[objc-3], &db, &pApi) ){
+    return TCL_ERROR;
+  }
+  zName = Tcl_GetString(objv[objc-2]);
+  pScript = objv[objc-1];
+
+  pMod = (F5tTokenizerModule*)ckalloc(sizeof(F5tTokenizerModule));
+  memset(pMod, 0, sizeof(F5tTokenizerModule));
+  pMod->interp = interp;
+  pMod->pScript = pScript;
+  Tcl_IncrRefCount(pScript);
+  pMod->pContext = pContext;
+  if( zParent ){
+    if( bV2 ){
+      fts5_tokenizer_v2 *pParent = 0;
+      rc = pApi->xFindTokenizer_v2(pApi, zParent, &pMod->pParentCtx, &pParent);
+      if( rc==SQLITE_OK ){
+        memcpy(&pMod->parent_v2, pParent, sizeof(fts5_tokenizer_v2));
+        pMod->parent_v2.xDelete(0);
+      }
+    }else{
+      rc = pApi->xFindTokenizer(pApi, zParent, &pMod->pParentCtx,&pMod->parent);
+      if( rc==SQLITE_OK ){
+        pMod->parent.xDelete(0);
+      }
+    }
+  }
+
+  if( rc==SQLITE_OK ){
+    void *pModCtx = (void*)pMod;
+    if( bV2==0 ){
+      fts5_tokenizer t;
+      t.xCreate = f5tTokenizerCreate;
+      t.xTokenize = f5tTokenizerTokenize;
+      t.xDelete = f5tTokenizerDelete;
+      rc = pApi->xCreateTokenizer(pApi, zName, pModCtx, &t, f5tDelTokenizer);
+    }else{
+      fts5_tokenizer_v2 t2;
+      memset(&t2, 0, sizeof(t2));
+      t2.iVersion = iVersion;
+      t2.xCreate = f5tTokenizerCreate;
+      t2.xTokenize = f5tTokenizerTokenize_v2;
+      t2.xDelete = f5tTokenizerDelete;
+      rc = pApi->xCreateTokenizer_v2(pApi, zName, pModCtx, &t2,f5tDelTokenizer);
+    }
+  }
+
+  if( rc!=SQLITE_OK ){
+    Tcl_AppendResult(interp, (
+          bV2 ? "error in fts5_api.xCreateTokenizer_v2()"
+          : "error in fts5_api.xCreateTokenizer()"
+    ), (char*)0);
+    return TCL_ERROR;
+  }
+
+  return TCL_OK;
+}
+
+static void SQLITE_TCLAPI xF5tFree(ClientData clientData){
+  ckfree(clientData);
+}
+
+/*
+**      sqlite3_fts5_may_be_corrupt BOOLEAN
+**
+** Set or clear the global "may-be-corrupt" flag. Return the old value.
+*/
+static int SQLITE_TCLAPI f5tMayBeCorrupt(
+  void * clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+#ifdef SQLITE_DEBUG
+  int bOld = sqlite3_fts5_may_be_corrupt;
+
+  if( objc!=2 && objc!=1 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "?BOOLEAN?");
+    return TCL_ERROR;
+  }
+  if( objc==2 ){
+    int bNew;
+    if( Tcl_GetBooleanFromObj(interp, objv[1], &bNew) ) return TCL_ERROR;
+    sqlite3_fts5_may_be_corrupt = bNew;
+  }
+
+  Tcl_SetObjResult(interp, Tcl_NewIntObj(bOld));
+#endif
+  return TCL_OK;
+}
+
+
+static unsigned int f5t_fts5HashKey(int nSlot, const char *p, int n){
+  int i;
+  unsigned int h = 13;
+  for(i=n-1; i>=0; i--){
+    h = (h << 3) ^ h ^ p[i];
+  }
+  return (h % nSlot);
+}
+
+static int SQLITE_TCLAPI f5tTokenHash(
+  void * clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  char *z;
+  Tcl_Size n;
+  unsigned int iVal;
+  int nSlot;
+
+  if( objc!=3 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "NSLOT TOKEN");
+    return TCL_ERROR;
+  }
+  if( Tcl_GetIntFromObj(interp, objv[1], &nSlot) ){
+    return TCL_ERROR;
+  }
+  z = Tcl_GetStringFromObj(objv[2], &n);
+
+  iVal = f5t_fts5HashKey(nSlot, z, (int)n);
+  Tcl_SetObjResult(interp, Tcl_NewIntObj(iVal));
+  return TCL_OK;
+}
+
+static int SQLITE_TCLAPI f5tRegisterMatchinfo(
+  void * clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  int rc;
+  sqlite3 *db = 0;
+
+  if( objc!=2 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "DB");
+    return TCL_ERROR;
+  }
+  if( f5tDbPointer(interp, objv[1], &db) ){
+    return TCL_ERROR;
+  }
+
+  rc = sqlite3Fts5TestRegisterMatchinfo(db);
+  if( rc!=SQLITE_OK ){
+    Tcl_SetResult(interp, (char*)sqlite3ErrName(rc), TCL_VOLATILE);
+    return TCL_ERROR;
+  }
+  return TCL_OK;
+}
+
+static int SQLITE_TCLAPI f5tRegisterTok(
+  void * clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  int rc;
+  sqlite3 *db = 0;
+  fts5_api *pApi = 0;
+
+  if( objc!=2 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "DB");
+    return TCL_ERROR;
+  }
+  if( f5tDbAndApi(interp, objv[1], &db, &pApi) ){
+    return TCL_ERROR;
+  }
+
+  rc = sqlite3Fts5TestRegisterTok(db, pApi);
+  if( rc!=SQLITE_OK ){
+    Tcl_SetResult(interp, (char*)sqlite3ErrName(rc), TCL_VOLATILE);
+    return TCL_ERROR;
+  }
+  return TCL_OK;
+}
+
+typedef struct OriginTextCtx OriginTextCtx;
+struct OriginTextCtx {
+  sqlite3 *db;
+  fts5_api *pApi;
+};
+
+typedef struct OriginTextTokenizer OriginTextTokenizer;
+struct OriginTextTokenizer {
+  Fts5Tokenizer *pTok;            /* Underlying tokenizer object */
+  fts5_tokenizer tokapi;          /* API implementation for pTok */
+};
+
+/*
+** Delete the OriginTextCtx object indicated by the only argument.
+*/
+static void f5tOrigintextTokenizerDelete(void *pCtx){
+  OriginTextCtx *p = (OriginTextCtx*)pCtx;
+  ckfree((char*)p);
+}
+
+static int f5tOrigintextCreate(
+  void *pCtx, 
+  const char **azArg, 
+  int nArg, 
+  Fts5Tokenizer **ppOut
+){
+  OriginTextCtx *p = (OriginTextCtx*)pCtx;
+  OriginTextTokenizer *pTok = 0;
+  void *pTokCtx = 0;
+  int rc = SQLITE_OK;
+
+  pTok = (OriginTextTokenizer*)sqlite3_malloc(sizeof(OriginTextTokenizer));
+  if( pTok==0 ){
+    rc = SQLITE_NOMEM;
+  }else if( nArg<1 ){
+    rc = SQLITE_ERROR;
+  }else{
+    /* Locate the underlying tokenizer */
+    rc = p->pApi->xFindTokenizer(p->pApi, azArg[0], &pTokCtx, &pTok->tokapi);
+  }
+
+  /* Create the new tokenizer instance */
+  if( rc==SQLITE_OK ){
+    rc = pTok->tokapi.xCreate(pTokCtx, &azArg[1], nArg-1, &pTok->pTok);
+  }
+
+  if( rc!=SQLITE_OK ){
+    sqlite3_free(pTok);
+    pTok = 0;
+  }
+  *ppOut = (Fts5Tokenizer*)pTok;
+  return rc;
+}
+
+static void f5tOrigintextDelete(Fts5Tokenizer *pTokenizer){
+  OriginTextTokenizer *p = (OriginTextTokenizer*)pTokenizer;
+  if( p->pTok ){
+    p->tokapi.xDelete(p->pTok);
+  }
+  sqlite3_free(p);
+}
+
+typedef struct OriginTextCb OriginTextCb;
+struct OriginTextCb {
+  void *pCtx;
+  const char *pText; 
+  int nText;
+  int (*xToken)(void *, int, const char *, int, int, int);
+
+  char *aBuf;                     /* Buffer to use */
+  int nBuf;                       /* Allocated size of aBuf[] */
+};
+
+static int xOriginToken(
+  void *pCtx,                     /* Copy of 2nd argument to xTokenize() */
+  int tflags,                     /* Mask of FTS5_TOKEN_* flags */
+  const char *pToken,             /* Pointer to buffer containing token */
+  int nToken,                     /* Size of token in bytes */
+  int iStart,                     /* Byte offset of token within input text */
+  int iEnd                        /* Byte offset of end of token within input */
+){
+  OriginTextCb *p = (OriginTextCb*)pCtx;
+  int ret = 0;
+
+  if( nToken==(iEnd-iStart) && 0==memcmp(pToken, &p->pText[iStart], nToken) ){
+    /* Token exactly matches document text. Pass it through as is. */
+    ret = p->xToken(p->pCtx, tflags, pToken, nToken, iStart, iEnd);
+  }else{
+    int nReq = nToken + 1 + (iEnd-iStart);
+    if( nReq>p->nBuf ){
+      sqlite3_free(p->aBuf);
+      p->aBuf = sqlite3_malloc(nReq*2);
+      if( p->aBuf==0 ) return SQLITE_NOMEM;
+      p->nBuf = nReq*2;
+    }
+
+    memcpy(p->aBuf, pToken, nToken);
+    p->aBuf[nToken] = '\0';
+    memcpy(&p->aBuf[nToken+1], &p->pText[iStart], iEnd-iStart);
+    ret = p->xToken(p->pCtx, tflags, p->aBuf, nReq, iStart, iEnd);
+  }
+
+  return ret;
+}
+
+
+static int f5tOrigintextTokenize(
+  Fts5Tokenizer *pTokenizer, 
+  void *pCtx,
+  int flags,                      /* Mask of FTS5_TOKENIZE_* flags */
+  const char *pText, int nText, 
+  int (*xToken)(void *, int, const char *, int, int, int)
+){
+  OriginTextTokenizer *p = (OriginTextTokenizer*)pTokenizer;
+  OriginTextCb cb;
+  int ret;
+
+  memset(&cb, 0, sizeof(cb));
+  cb.pCtx = pCtx;
+  cb.pText = pText;
+  cb.nText = nText;
+  cb.xToken = xToken;
+
+  ret = p->tokapi.xTokenize(p->pTok,(void*)&cb,flags,pText,nText,xOriginToken);
+  sqlite3_free(cb.aBuf);
+  return ret;
+}
+
+/*
+**      sqlite3_fts5_register_origintext DB
+**
+** Description...
+*/
+static int SQLITE_TCLAPI f5tRegisterOriginText(
+  void * clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  sqlite3 *db = 0;
+  fts5_api *pApi = 0;
+  int rc;
+  fts5_tokenizer tok = {0, 0, 0};
+  OriginTextCtx *pCtx = 0;
+
+  if( objc!=2 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "DB");
+    return TCL_ERROR;
+  }
+  if( f5tDbAndApi(interp, objv[1], &db, &pApi) ) return TCL_ERROR;
+
+  pCtx = (OriginTextCtx*)ckalloc(sizeof(OriginTextCtx));
+  pCtx->db = db;
+  pCtx->pApi = pApi;
+
+  tok.xCreate = f5tOrigintextCreate;
+  tok.xDelete = f5tOrigintextDelete;
+  tok.xTokenize = f5tOrigintextTokenize;
+  rc = pApi->xCreateTokenizer(
+      pApi, "origintext", (void*)pCtx, &tok, f5tOrigintextTokenizerDelete
+  );
+
+  Tcl_ResetResult(interp);
+  if( rc!=SQLITE_OK ){
+    Tcl_AppendResult(interp, "error: ", sqlite3_errmsg(db), (void*)0);
+    return TCL_ERROR;
+  }
+  return TCL_OK;
+}
+
+/*
+** This function is used to DROP an fts5 table. It works even if the data
+** structures fts5 stores within the database are corrupt, which sometimes
+** prevents a straight "DROP TABLE" command from succeeding.
+**
+** The first parameter is the database handle to use for the DROP TABLE
+** operation. The second is the name of the database to drop the fts5 table
+** from (i.e. "main", "temp" or the name of an attached database). The
+** third parameter is the name of the fts5 table to drop.
+**
+** SQLITE_OK is returned if the table is successfully dropped. Or, if an
+** error occurs, an SQLite error code.
+*/
+static int sqlite3_fts5_drop_corrupt_table(
+  sqlite3 *db,                    /* Database handle */
+  const char *zDb,                /* Database name ("main", "temp" etc.) */
+  const char *zTab                /* Name of fts5 table to drop */
+){
+  int rc = SQLITE_OK;
+  int bDef = 0;
+
+  rc = sqlite3_db_config(db, SQLITE_DBCONFIG_DEFENSIVE, -1, &bDef);
+  if( rc==SQLITE_OK ){
+    char *zScript = sqlite3_mprintf(
+        "DELETE FROM %Q.'%q_data';"
+        "DELETE FROM %Q.'%q_config';"
+        "INSERT INTO %Q.'%q_data' VALUES(10, X'0000000000');"
+        "INSERT INTO %Q.'%q_config' VALUES('version', 4);"
+        "DROP TABLE %Q.'%q';",
+        zDb, zTab, zDb, zTab, zDb, zTab, zDb, zTab, zDb, zTab
+    );
+
+    if( zScript==0 ){
+      rc = SQLITE_NOMEM;
+    }else{
+      if( bDef ) sqlite3_db_config(db, SQLITE_DBCONFIG_DEFENSIVE, 0, 0);
+      rc = sqlite3_exec(db, zScript, 0, 0, 0);
+      if( bDef ) sqlite3_db_config(db, SQLITE_DBCONFIG_DEFENSIVE, 1, 0);
+      sqlite3_free(zScript);
+    }
+  }
+
+  return rc;
+}
+
+/*
+**      sqlite3_fts5_drop_corrupt_table DB DATABASE TABLE
+**
+** Description...
+*/
+static int SQLITE_TCLAPI f5tDropCorruptTable(
+  void * clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  sqlite3 *db = 0;
+  const char *zDb = 0;
+  const char *zTab = 0;
+  int rc = SQLITE_OK;
+
+  if( objc!=4 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "DB DATABASE TABLE");
+    return TCL_ERROR;
+  }
+  if( f5tDbPointer(interp, objv[1], &db) ){
+    return TCL_ERROR;
+  }
+  zDb = Tcl_GetString(objv[2]);
+  zTab = Tcl_GetString(objv[3]);
+
+  rc = sqlite3_fts5_drop_corrupt_table(db, zDb, zTab);
+  if( rc!=SQLITE_OK ){
+    Tcl_AppendResult(interp, "error: ", sqlite3_errmsg(db), (void*)0);
+    return TCL_ERROR;
+  }
+
+  return TCL_OK;
+}
+
+/*
+** Free a buffer returned to SQLite by the str() function.
+*/
+void f5tFree(void *p){
+  char *x = (char *)p;
+  ckfree(&x[-8]);
+}
+
+/*
+** Implementation of str().
+*/
+void f5tStrFunc(sqlite3_context *pCtx, int nArg, sqlite3_value **apArg){
+  const char *zText = 0;
+  assert( nArg==1 );
+
+  zText = (const char*)sqlite3_value_text(apArg[0]);
+  if( zText ){
+    sqlite3_int64 nText = strlen(zText);
+    char *zCopy = (char*)ckalloc(nText+8);
+    if( zCopy==0 ){
+      sqlite3_result_error_nomem(pCtx);
+    }else{
+      zCopy += 8;
+      memcpy(zCopy, zText, nText);
+      sqlite3_result_text64(pCtx, zCopy, nText, f5tFree, SQLITE_UTF8);
+    }
+  }
+}
+
+/*
+**      sqlite3_fts5_register_str DB
+**
+** Register the str() function with database handle DB. str() interprets
+** its only argument as text and returns a copy of the value in a
+** non-nul-terminated buffer.
+*/
+static int SQLITE_TCLAPI f5tRegisterStr(
+  void * clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  sqlite3 *db = 0;
+
+  if( objc!=2 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "DB");
+    return TCL_ERROR;
+  }
+  if( f5tDbPointer(interp, objv[1], &db) ){
+    return TCL_ERROR;
+  }
+
+  sqlite3_create_function(db, "str", 1, SQLITE_UTF8, 0, f5tStrFunc, 0, 0);
+
+  return TCL_OK;
+}
+
+/*
+** Entry point.
+*/
+int Fts5tcl_Init(Tcl_Interp *interp){
+  static struct Cmd {
+    char *zName;
+    Tcl_ObjCmdProc *xProc;
+    int bTokenizeCtx;
+  } aCmd[] = {
+    { "sqlite3_fts5_create_tokenizer",   f5tCreateTokenizer, 1 },
+    { "sqlite3_fts5_token",              f5tTokenizerReturn, 1 },
+    { "sqlite3_fts5_locale",             f5tTokenizerLocale, 1 },
+    { "sqlite3_fts5_tokenize",           f5tTokenize, 0 },
+    { "sqlite3_fts5_create_function",    f5tCreateFunction, 0 },
+    { "sqlite3_fts5_may_be_corrupt",     f5tMayBeCorrupt, 0 },
+    { "sqlite3_fts5_token_hash",         f5tTokenHash, 0 },
+    { "sqlite3_fts5_register_matchinfo", f5tRegisterMatchinfo, 0 },
+    { "sqlite3_fts5_register_fts5tokenize", f5tRegisterTok, 0 },
+    { "sqlite3_fts5_register_origintext",f5tRegisterOriginText, 0 },
+    { "sqlite3_fts5_drop_corrupt_table", f5tDropCorruptTable, 0 },
+    { "sqlite3_fts5_register_str",       f5tRegisterStr, 0 }
+  };
+  int i;
+  F5tTokenizerContext *pContext;
+
+  pContext = (F5tTokenizerContext*)ckalloc(sizeof(F5tTokenizerContext));
+  memset(pContext, 0, sizeof(*pContext));
+
+  for(i=0; i<sizeof(aCmd)/sizeof(aCmd[0]); i++){
+    struct Cmd *p = &aCmd[i];
+    void *pCtx = 0;
+    if( p->bTokenizeCtx ) pCtx = (void*)pContext;
+    Tcl_CreateObjCommand(interp, p->zName, p->xProc, pCtx, (i ? 0 : xF5tFree));
+  }
+
+  return TCL_OK;
+}
+#else  /* SQLITE_ENABLE_FTS5 */
+int Fts5tcl_Init(Tcl_Interp *interp){
+  return TCL_OK;
+}
+#endif /* SQLITE_ENABLE_FTS5 */
+#endif /* SQLITE_TEST */
diff --git a/ext/fts5/fts5_test_mi.c b/ext/fts5/fts5_test_mi.c
new file mode 100644
index 0000000000000000000000000000000000000000..6f2d6e7ea27cda88b018cd9cc1ac0c7a926ea5d8
--- /dev/null
+++ b/ext/fts5/fts5_test_mi.c
@@ -0,0 +1,421 @@
+/*
+** 2015 Aug 04
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This file contains test code only, it is not included in release 
+** versions of FTS5. It contains the implementation of an FTS5 auxiliary
+** function very similar to the FTS4 function matchinfo():
+**
+**     https://www.sqlite.org/fts3.html#matchinfo
+**
+** Known differences are that:
+**
+**  1) this function uses the FTS5 definition of "matchable phrase", which
+**     excludes any phrases that are part of an expression sub-tree that
+**     does not match the current row. This comes up for MATCH queries 
+**     such as:
+**
+**         "a OR (b AND c)"
+**
+**     In FTS4, if a single row contains instances of tokens "a" and "c", 
+**     but not "b", all instances of "c" are considered matches. In FTS5,
+**     they are not (as the "b AND c" sub-tree does not match the current
+**     row.
+**
+**  2) For the values returned by 'x' that apply to all rows of the table, 
+**     NEAR constraints are not considered. But for the number of hits in
+**     the current row, they are.
+**     
+** This file exports a single function that may be called to register the
+** matchinfo() implementation with a database handle:
+**
+**   int sqlite3Fts5TestRegisterMatchinfo(sqlite3 *db);
+*/
+
+
+#ifdef SQLITE_ENABLE_FTS5
+
+#include "fts5.h"
+#include <assert.h>
+#include <string.h>
+
+typedef struct Fts5MatchinfoCtx Fts5MatchinfoCtx;
+
+#ifndef SQLITE_AMALGAMATION
+typedef unsigned int u32;
+#endif
+
+struct Fts5MatchinfoCtx {
+  int nCol;                       /* Number of cols in FTS5 table */
+  int nPhrase;                    /* Number of phrases in FTS5 query */
+  char *zArg;                     /* nul-term'd copy of 2nd arg */
+  int nRet;                       /* Number of elements in aRet[] */
+  u32 *aRet;                      /* Array of 32-bit unsigned ints to return */
+};
+
+
+
+/*
+** Return a pointer to the fts5_api pointer for database connection db.
+** If an error occurs, return NULL and leave an error in the database 
+** handle (accessible using sqlite3_errcode()/errmsg()).
+*/
+static int fts5_api_from_db(sqlite3 *db, fts5_api **ppApi){
+  sqlite3_stmt *pStmt = 0;
+  int rc;
+
+  *ppApi = 0;
+  rc = sqlite3_prepare(db, "SELECT fts5(?1)", -1, &pStmt, 0);
+  if( rc==SQLITE_OK ){
+    sqlite3_bind_pointer(pStmt, 1, (void*)ppApi, "fts5_api_ptr", 0);
+    (void)sqlite3_step(pStmt);
+    rc = sqlite3_finalize(pStmt);
+  }
+
+  return rc;
+}
+
+
+/*
+** Argument f should be a flag accepted by matchinfo() (a valid character
+** in the string passed as the second argument). If it is not, -1 is 
+** returned. Otherwise, if f is a valid matchinfo flag, the value returned
+** is the number of 32-bit integers added to the output array if the
+** table has nCol columns and the query nPhrase phrases.
+*/
+static int fts5MatchinfoFlagsize(int nCol, int nPhrase, char f){
+  int ret = -1;
+  switch( f ){
+    case 'p': ret = 1; break;
+    case 'c': ret = 1; break;
+    case 'x': ret = 3 * nCol * nPhrase; break;
+    case 'y': ret = nCol * nPhrase; break;
+    case 'b': ret = ((nCol + 31) / 32) * nPhrase; break;
+    case 'n': ret = 1; break;
+    case 'a': ret = nCol; break;
+    case 'l': ret = nCol; break;
+    case 's': ret = nCol; break;
+  }
+  return ret;
+}
+
+static int fts5MatchinfoIter(
+  const Fts5ExtensionApi *pApi,   /* API offered by current FTS version */
+  Fts5Context *pFts,              /* First arg to pass to pApi functions */
+  Fts5MatchinfoCtx *p,
+  int(*x)(const Fts5ExtensionApi*,Fts5Context*,Fts5MatchinfoCtx*,char,u32*)
+){
+  int i;
+  int n = 0;
+  int rc = SQLITE_OK;
+  char f;
+  for(i=0; (f = p->zArg[i]); i++){
+    rc = x(pApi, pFts, p, f, &p->aRet[n]);
+    if( rc!=SQLITE_OK ) break;
+    n += fts5MatchinfoFlagsize(p->nCol, p->nPhrase, f);
+  }
+  return rc;
+}
+
+static int fts5MatchinfoXCb(
+  const Fts5ExtensionApi *pApi,
+  Fts5Context *pFts,
+  void *pUserData
+){
+  Fts5PhraseIter iter;
+  int iCol, iOff;
+  u32 *aOut = (u32*)pUserData;
+  int iPrev = -1;
+
+  for(pApi->xPhraseFirst(pFts, 0, &iter, &iCol, &iOff); 
+      iCol>=0; 
+      pApi->xPhraseNext(pFts, &iter, &iCol, &iOff)
+  ){
+    aOut[iCol*3+1]++;
+    if( iCol!=iPrev ) aOut[iCol*3 + 2]++;
+    iPrev = iCol;
+  }
+
+  return SQLITE_OK;
+}
+
+static int fts5MatchinfoGlobalCb(
+  const Fts5ExtensionApi *pApi,
+  Fts5Context *pFts,
+  Fts5MatchinfoCtx *p,
+  char f,
+  u32 *aOut
+){
+  int rc = SQLITE_OK;
+  switch( f ){
+    case 'p':
+      aOut[0] = p->nPhrase; 
+      break;
+
+    case 'c':
+      aOut[0] = p->nCol; 
+      break;
+
+    case 'x': {
+      int i;
+      for(i=0; i<p->nPhrase && rc==SQLITE_OK; i++){
+        void *pPtr = (void*)&aOut[i * p->nCol * 3];
+        rc = pApi->xQueryPhrase(pFts, i, pPtr, fts5MatchinfoXCb);
+      }
+      break;
+    }
+
+    case 'n': {
+      sqlite3_int64 nRow;
+      rc = pApi->xRowCount(pFts, &nRow);
+      aOut[0] = (u32)nRow;
+      break;
+    }
+
+    case 'a': {
+      sqlite3_int64 nRow = 0;
+      rc = pApi->xRowCount(pFts, &nRow);
+      if( nRow==0 ){
+        memset(aOut, 0, sizeof(u32) * p->nCol);
+      }else{
+        int i;
+        for(i=0; rc==SQLITE_OK && i<p->nCol; i++){
+          sqlite3_int64 nToken;
+          rc = pApi->xColumnTotalSize(pFts, i, &nToken);
+          if( rc==SQLITE_OK){
+            aOut[i] = (u32)((2*nToken + nRow) / (2*nRow));
+          }
+        }
+      }
+      break;
+    }
+
+  }
+  return rc;
+}
+
+static int fts5MatchinfoLocalCb(
+  const Fts5ExtensionApi *pApi,
+  Fts5Context *pFts,
+  Fts5MatchinfoCtx *p,
+  char f,
+  u32 *aOut
+){
+  int i;
+  int rc = SQLITE_OK;
+
+  switch( f ){
+    case 'b': {
+      int iPhrase;
+      int nInt = ((p->nCol + 31) / 32) * p->nPhrase;
+      for(i=0; i<nInt; i++) aOut[i] = 0;
+
+      for(iPhrase=0; iPhrase<p->nPhrase; iPhrase++){
+        Fts5PhraseIter iter;
+        int iCol;
+        for(pApi->xPhraseFirstColumn(pFts, iPhrase, &iter, &iCol);
+            iCol>=0; 
+            pApi->xPhraseNextColumn(pFts, &iter, &iCol)
+        ){
+          aOut[iPhrase * ((p->nCol+31)/32) + iCol/32] |= ((u32)1 << iCol%32);
+        }
+      }
+
+      break;
+    }
+
+    case 'x':
+    case 'y': {
+      int nMul = (f=='x' ? 3 : 1);
+      int iPhrase;
+
+      for(i=0; i<(p->nCol*p->nPhrase); i++) aOut[i*nMul] = 0;
+
+      for(iPhrase=0; iPhrase<p->nPhrase; iPhrase++){
+        Fts5PhraseIter iter;
+        int iOff, iCol;
+        for(pApi->xPhraseFirst(pFts, iPhrase, &iter, &iCol, &iOff); 
+            iOff>=0; 
+            pApi->xPhraseNext(pFts, &iter, &iCol, &iOff)
+        ){
+          aOut[nMul * (iCol + iPhrase * p->nCol)]++;
+        }
+      }
+
+      break;
+    }
+
+    case 'l': {
+      for(i=0; rc==SQLITE_OK && i<p->nCol; i++){
+        int nToken;
+        rc = pApi->xColumnSize(pFts, i, &nToken);
+        aOut[i] = (u32)nToken;
+      }
+      break;
+    }
+
+    case 's': {
+      int nInst;
+
+      memset(aOut, 0, sizeof(u32) * p->nCol);
+
+      rc = pApi->xInstCount(pFts, &nInst);
+      for(i=0; rc==SQLITE_OK && i<nInst; i++){
+        int iPhrase, iOff, iCol = 0;
+        int iNextPhrase;
+        int iNextOff;
+        u32 nSeq = 1;
+        int j;
+
+        rc = pApi->xInst(pFts, i, &iPhrase, &iCol, &iOff);
+        iNextPhrase = iPhrase+1;
+        iNextOff = iOff+pApi->xPhraseSize(pFts, 0);
+        for(j=i+1; rc==SQLITE_OK && j<nInst; j++){
+          int ip, ic, io;
+          rc = pApi->xInst(pFts, j, &ip, &ic, &io);
+          if( ic!=iCol || io>iNextOff ) break;
+          if( ip==iNextPhrase && io==iNextOff ){
+            nSeq++;
+            iNextPhrase = ip+1;
+            iNextOff = io + pApi->xPhraseSize(pFts, ip);
+          }
+        }
+
+        if( nSeq>aOut[iCol] ) aOut[iCol] = nSeq;
+      }
+
+      break;
+    }
+  }
+  return rc;
+}
+ 
+static Fts5MatchinfoCtx *fts5MatchinfoNew(
+  const Fts5ExtensionApi *pApi,   /* API offered by current FTS version */
+  Fts5Context *pFts,              /* First arg to pass to pApi functions */
+  sqlite3_context *pCtx,          /* Context for returning error message */
+  const char *zArg                /* Matchinfo flag string */
+){
+  Fts5MatchinfoCtx *p;
+  int nCol;
+  int nPhrase;
+  int i;
+  int nInt;
+  sqlite3_int64 nByte;
+  int rc;
+
+  nCol = pApi->xColumnCount(pFts);
+  nPhrase = pApi->xPhraseCount(pFts);
+
+  nInt = 0;
+  for(i=0; zArg[i]; i++){
+    int n = fts5MatchinfoFlagsize(nCol, nPhrase, zArg[i]);
+    if( n<0 ){
+      char *zErr = sqlite3_mprintf("unrecognized matchinfo flag: %c", zArg[i]);
+      sqlite3_result_error(pCtx, zErr, -1);
+      sqlite3_free(zErr);
+      return 0;
+    }
+    nInt += n;
+  }
+
+  nByte = sizeof(Fts5MatchinfoCtx)          /* The struct itself */
+         + sizeof(u32) * nInt               /* The p->aRet[] array */
+         + (i+1);                           /* The p->zArg string */
+  p = (Fts5MatchinfoCtx*)sqlite3_malloc64(nByte);
+  if( p==0 ){
+    sqlite3_result_error_nomem(pCtx);
+    return 0;
+  }
+  memset(p, 0, nByte);
+
+  p->nCol = nCol;
+  p->nPhrase = nPhrase;
+  p->aRet = (u32*)&p[1];
+  p->nRet = nInt;
+  p->zArg = (char*)&p->aRet[nInt];
+  memcpy(p->zArg, zArg, i);
+
+  rc = fts5MatchinfoIter(pApi, pFts, p, fts5MatchinfoGlobalCb);
+  if( rc!=SQLITE_OK ){
+    sqlite3_result_error_code(pCtx, rc);
+    sqlite3_free(p);
+    p = 0;
+  }
+
+  return p;
+}
+
+static void fts5MatchinfoFunc(
+  const Fts5ExtensionApi *pApi,   /* API offered by current FTS version */
+  Fts5Context *pFts,              /* First arg to pass to pApi functions */
+  sqlite3_context *pCtx,          /* Context for returning result/error */
+  int nVal,                       /* Number of values in apVal[] array */
+  sqlite3_value **apVal           /* Array of trailing arguments */
+){
+  const char *zArg;
+  Fts5MatchinfoCtx *p;
+  int rc = SQLITE_OK;
+
+  if( nVal>0 ){
+    zArg = (const char*)sqlite3_value_text(apVal[0]);
+  }else{
+    zArg = "pcx";
+  }
+
+  p = (Fts5MatchinfoCtx*)pApi->xGetAuxdata(pFts, 0);
+  if( p==0 || sqlite3_stricmp(zArg, p->zArg) ){
+    p = fts5MatchinfoNew(pApi, pFts, pCtx, zArg);
+    if( p==0 ){
+      rc = SQLITE_NOMEM;
+    }else{
+      rc = pApi->xSetAuxdata(pFts, p, sqlite3_free);
+    }
+  }
+
+  if( rc==SQLITE_OK ){
+    rc = fts5MatchinfoIter(pApi, pFts, p, fts5MatchinfoLocalCb);
+  }
+  if( rc!=SQLITE_OK ){
+    sqlite3_result_error_code(pCtx, rc);
+  }else{
+    /* No errors has occured, so return a copy of the array of integers. */
+    int nByte = p->nRet * sizeof(u32);
+    sqlite3_result_blob(pCtx, (void*)p->aRet, nByte, SQLITE_TRANSIENT);
+  }
+}
+
+int sqlite3Fts5TestRegisterMatchinfo(sqlite3 *db){
+  int rc;                         /* Return code */
+  fts5_api *pApi;                 /* FTS5 API functions */
+
+  /* Extract the FTS5 API pointer from the database handle. The 
+  ** fts5_api_from_db() function above is copied verbatim from the 
+  ** FTS5 documentation. Refer there for details. */
+  rc = fts5_api_from_db(db, &pApi);
+  if( rc!=SQLITE_OK ) return rc;
+
+  /* If fts5_api_from_db() returns NULL, then either FTS5 is not registered
+  ** with this database handle, or an error (OOM perhaps?) has occurred.
+  **
+  ** Also check that the fts5_api object is version 2 or newer.  
+  */ 
+  if( pApi==0 || pApi->iVersion<2 ){
+    return SQLITE_ERROR;
+  }
+
+  /* Register the implementation of matchinfo() */
+  rc = pApi->xCreateFunction(pApi, "matchinfo", 0, fts5MatchinfoFunc, 0);
+
+  return rc;
+}
+
+#endif /* SQLITE_ENABLE_FTS5 */
diff --git a/ext/fts5/fts5_test_tok.c b/ext/fts5/fts5_test_tok.c
new file mode 100644
index 0000000000000000000000000000000000000000..994d304dc60edc064bf75d9f014ff522c71a8e2d
--- /dev/null
+++ b/ext/fts5/fts5_test_tok.c
@@ -0,0 +1,484 @@
+/*
+** 2013 Apr 22
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This file contains code for the "fts5tokenize" virtual table module.
+** An fts5tokenize virtual table is created as follows:
+**
+**   CREATE VIRTUAL TABLE <tbl> USING fts5tokenize(
+**       <tokenizer-name>, <arg-1>, ...
+**   );
+**
+** The table created has the following schema:
+**
+**   CREATE TABLE <tbl>(input HIDDEN, token, start, end, position)
+**
+** When queried, the query must include a WHERE clause of type:
+**
+**   input = <string>
+**
+** The virtual table module tokenizes this <string>, using the FTS3 
+** tokenizer specified by the arguments to the CREATE VIRTUAL TABLE 
+** statement and returns one row for each token in the result. With
+** fields set as follows:
+**
+**   input:   Always set to a copy of <string>
+**   token:   A token from the input.
+**   start:   Byte offset of the token within the input <string>.
+**   end:     Byte offset of the byte immediately following the end of the
+**            token within the input string.
+**   pos:     Token offset of token within input.
+**
+*/
+#if defined(SQLITE_TEST) && defined(SQLITE_ENABLE_FTS5)
+
+#include "fts5.h"
+#include <string.h>
+#include <assert.h>
+
+typedef struct Fts5tokTable Fts5tokTable;
+typedef struct Fts5tokCursor Fts5tokCursor;
+typedef struct Fts5tokRow Fts5tokRow;
+
+/*
+** Virtual table structure.
+*/
+struct Fts5tokTable {
+  sqlite3_vtab base;              /* Base class used by SQLite core */
+  fts5_tokenizer tok;             /* Tokenizer functions */
+  Fts5Tokenizer *pTok;            /* Tokenizer instance */
+};
+
+/*
+** A container for a rows values.
+*/
+struct Fts5tokRow {
+  char *zToken;
+  int iStart;
+  int iEnd;
+  int iPos;
+};
+
+/*
+** Virtual table cursor structure.
+*/
+struct Fts5tokCursor {
+  sqlite3_vtab_cursor base;       /* Base class used by SQLite core */
+  int iRowid;                     /* Current 'rowid' value */
+  char *zInput;                   /* Input string */
+  int nRow;                       /* Number of entries in aRow[] */
+  Fts5tokRow *aRow;               /* Array of rows to return */
+};
+
+static void fts5tokDequote(char *z){
+  char q = z[0];
+
+  if( q=='[' || q=='\'' || q=='"' || q=='`' ){
+    int iIn = 1;
+    int iOut = 0;
+    if( q=='[' ) q = ']';  
+
+    while( z[iIn] ){
+      if( z[iIn]==q ){
+        if( z[iIn+1]!=q ){
+          /* Character iIn was the close quote. */
+          iIn++;
+          break;
+        }else{
+          /* Character iIn and iIn+1 form an escaped quote character. Skip
+          ** the input cursor past both and copy a single quote character 
+          ** to the output buffer. */
+          iIn += 2;
+          z[iOut++] = q;
+        }
+      }else{
+        z[iOut++] = z[iIn++];
+      }
+    }
+
+    z[iOut] = '\0';
+  }
+}
+
+/*
+** The second argument, argv[], is an array of pointers to nul-terminated
+** strings. This function makes a copy of the array and strings into a 
+** single block of memory. It then dequotes any of the strings that appear
+** to be quoted.
+**
+** If successful, output parameter *pazDequote is set to point at the
+** array of dequoted strings and SQLITE_OK is returned. The caller is
+** responsible for eventually calling sqlite3_free() to free the array
+** in this case. Or, if an error occurs, an SQLite error code is returned.
+** The final value of *pazDequote is undefined in this case.
+*/
+static int fts5tokDequoteArray(
+  int argc,                       /* Number of elements in argv[] */
+  const char * const *argv,       /* Input array */
+  char ***pazDequote              /* Output array */
+){
+  int rc = SQLITE_OK;             /* Return code */
+  if( argc==0 ){
+    *pazDequote = 0;
+  }else{
+    int i;
+    int nByte = 0;
+    char **azDequote;
+
+    for(i=0; i<argc; i++){
+      nByte += (int)(strlen(argv[i]) + 1);
+    }
+
+    *pazDequote = azDequote = sqlite3_malloc64(sizeof(char *)*argc + nByte);
+    if( azDequote==0 ){
+      rc = SQLITE_NOMEM;
+    }else{
+      char *pSpace = (char *)&azDequote[argc];
+      for(i=0; i<argc; i++){
+        int n = (int)strlen(argv[i]);
+        azDequote[i] = pSpace;
+        memcpy(pSpace, argv[i], n+1);
+        fts5tokDequote(pSpace);
+        pSpace += (n+1);
+      }
+    }
+  }
+
+  return rc;
+}
+
+/*
+** Schema of the tokenizer table.
+*/
+#define FTS3_TOK_SCHEMA "CREATE TABLE x(input HIDDEN, token, start, end, position)"
+
+/*
+** This function does all the work for both the xConnect and xCreate methods.
+** These tables have no persistent representation of their own, so xConnect
+** and xCreate are identical operations.
+**
+**   argv[0]: module name
+**   argv[1]: database name 
+**   argv[2]: table name
+**   argv[3]: first argument (tokenizer name)
+*/
+static int fts5tokConnectMethod(
+  sqlite3 *db,                    /* Database connection */
+  void *pCtx,                     /* Pointer to fts5_api object */
+  int argc,                       /* Number of elements in argv array */
+  const char * const *argv,       /* xCreate/xConnect argument array */
+  sqlite3_vtab **ppVtab,          /* OUT: New sqlite3_vtab object */
+  char **pzErr                    /* OUT: sqlite3_malloc'd error message */
+){
+  fts5_api *pApi = (fts5_api*)pCtx;
+  Fts5tokTable *pTab = 0;
+  int rc;
+  char **azDequote = 0;
+  int nDequote = 0;
+
+  rc = sqlite3_declare_vtab(db, 
+       "CREATE TABLE x(input HIDDEN, token, start, end, position)"
+  );
+
+  if( rc==SQLITE_OK ){
+    nDequote = argc-3;
+    rc = fts5tokDequoteArray(nDequote, &argv[3], &azDequote);
+  }
+
+  if( rc==SQLITE_OK ){
+    pTab = (Fts5tokTable*)sqlite3_malloc(sizeof(Fts5tokTable));
+    if( pTab==0 ){
+      rc = SQLITE_NOMEM;
+    }else{
+      memset(pTab, 0, sizeof(Fts5tokTable));
+    }
+  }
+
+  if( rc==SQLITE_OK ){
+    void *pTokCtx = 0;
+    const char *zModule = 0;
+    if( nDequote>0 ){
+      zModule = azDequote[0];
+    }
+
+    rc = pApi->xFindTokenizer(pApi, zModule, &pTokCtx, &pTab->tok);
+    if( rc==SQLITE_OK ){
+      const char **azArg = (nDequote>1 ? (const char **)&azDequote[1] : 0);
+      int nArg = nDequote>0 ? nDequote-1 : 0;
+      rc = pTab->tok.xCreate(pTokCtx, azArg, nArg, &pTab->pTok);
+    }
+  }
+
+  if( rc!=SQLITE_OK ){
+    sqlite3_free(pTab);
+    pTab = 0;
+  }
+
+  *ppVtab = (sqlite3_vtab*)pTab;
+  sqlite3_free(azDequote);
+  return rc;
+}
+
+/*
+** This function does the work for both the xDisconnect and xDestroy methods.
+** These tables have no persistent representation of their own, so xDisconnect
+** and xDestroy are identical operations.
+*/
+static int fts5tokDisconnectMethod(sqlite3_vtab *pVtab){
+  Fts5tokTable *pTab = (Fts5tokTable *)pVtab;
+  if( pTab->pTok ){
+    pTab->tok.xDelete(pTab->pTok);
+  }
+  sqlite3_free(pTab);
+  return SQLITE_OK;
+}
+
+/*
+** xBestIndex - Analyze a WHERE and ORDER BY clause.
+*/
+static int fts5tokBestIndexMethod(
+  sqlite3_vtab *pVTab, 
+  sqlite3_index_info *pInfo
+){
+  int i;
+
+  for(i=0; i<pInfo->nConstraint; i++){
+    if( pInfo->aConstraint[i].usable 
+     && pInfo->aConstraint[i].iColumn==0 
+     && pInfo->aConstraint[i].op==SQLITE_INDEX_CONSTRAINT_EQ 
+    ){
+      pInfo->idxNum = 1;
+      pInfo->aConstraintUsage[i].argvIndex = 1;
+      pInfo->aConstraintUsage[i].omit = 1;
+      pInfo->estimatedCost = 1;
+      return SQLITE_OK;
+    }
+  }
+
+  pInfo->idxNum = 0;
+  assert( pInfo->estimatedCost>1000000.0 );
+
+  return SQLITE_OK;
+}
+
+/*
+** xOpen - Open a cursor.
+*/
+static int fts5tokOpenMethod(sqlite3_vtab *pVTab, sqlite3_vtab_cursor **ppCsr){
+  Fts5tokCursor *pCsr;
+
+  pCsr = (Fts5tokCursor *)sqlite3_malloc(sizeof(Fts5tokCursor));
+  if( pCsr==0 ){
+    return SQLITE_NOMEM;
+  }
+  memset(pCsr, 0, sizeof(Fts5tokCursor));
+
+  *ppCsr = (sqlite3_vtab_cursor *)pCsr;
+  return SQLITE_OK;
+}
+
+/*
+** Reset the tokenizer cursor passed as the only argument. As if it had
+** just been returned by fts5tokOpenMethod().
+*/
+static void fts5tokResetCursor(Fts5tokCursor *pCsr){
+  int i;
+  for(i=0; i<pCsr->nRow; i++){
+    sqlite3_free(pCsr->aRow[i].zToken);
+  }
+  sqlite3_free(pCsr->zInput);
+  sqlite3_free(pCsr->aRow);
+  pCsr->zInput = 0;
+  pCsr->aRow = 0;
+  pCsr->nRow = 0;
+  pCsr->iRowid = 0;
+}
+
+/*
+** xClose - Close a cursor.
+*/
+static int fts5tokCloseMethod(sqlite3_vtab_cursor *pCursor){
+  Fts5tokCursor *pCsr = (Fts5tokCursor *)pCursor;
+  fts5tokResetCursor(pCsr);
+  sqlite3_free(pCsr);
+  return SQLITE_OK;
+}
+
+/*
+** xNext - Advance the cursor to the next row, if any.
+*/
+static int fts5tokNextMethod(sqlite3_vtab_cursor *pCursor){
+  Fts5tokCursor *pCsr = (Fts5tokCursor *)pCursor;
+  pCsr->iRowid++;
+  return SQLITE_OK;
+}
+
+static int fts5tokCb(
+  void *pCtx,         /* Pointer to Fts5tokCursor */
+  int tflags,         /* Mask of FTS5_TOKEN_* flags */
+  const char *pToken, /* Pointer to buffer containing token */
+  int nToken,         /* Size of token in bytes */
+  int iStart,         /* Byte offset of token within input text */
+  int iEnd            /* Byte offset of end of token within input text */
+){
+  Fts5tokCursor *pCsr = (Fts5tokCursor*)pCtx;
+  Fts5tokRow *pRow;
+
+  if( (pCsr->nRow & (pCsr->nRow-1))==0 ){
+    int nNew = pCsr->nRow ? pCsr->nRow*2 : 32;
+    Fts5tokRow *aNew;
+    aNew = (Fts5tokRow*)sqlite3_realloc64(pCsr->aRow, nNew*sizeof(Fts5tokRow));
+    if( aNew==0 ) return SQLITE_NOMEM;
+    memset(&aNew[pCsr->nRow], 0, sizeof(Fts5tokRow)*(nNew-pCsr->nRow));
+    pCsr->aRow = aNew;
+  }
+
+  pRow = &pCsr->aRow[pCsr->nRow];
+  pRow->iStart = iStart;
+  pRow->iEnd = iEnd;
+  if( pCsr->nRow ){
+    pRow->iPos = pRow[-1].iPos + ((tflags & FTS5_TOKEN_COLOCATED) ? 0 : 1);
+  }
+  pRow->zToken = sqlite3_malloc(nToken+1);
+  if( pRow->zToken==0 ) return SQLITE_NOMEM;
+  memcpy(pRow->zToken, pToken, nToken);
+  pRow->zToken[nToken] = 0;
+  pCsr->nRow++;
+
+  return SQLITE_OK;
+}
+
+/*
+** xFilter - Initialize a cursor to point at the start of its data.
+*/
+static int fts5tokFilterMethod(
+  sqlite3_vtab_cursor *pCursor,   /* The cursor used for this query */
+  int idxNum,                     /* Strategy index */
+  const char *idxStr,             /* Unused */
+  int nVal,                       /* Number of elements in apVal */
+  sqlite3_value **apVal           /* Arguments for the indexing scheme */
+){
+  int rc = SQLITE_ERROR;
+  Fts5tokCursor *pCsr = (Fts5tokCursor *)pCursor;
+  Fts5tokTable *pTab = (Fts5tokTable *)(pCursor->pVtab);
+
+  fts5tokResetCursor(pCsr);
+  if( idxNum==1 ){
+    const char *zByte = (const char *)sqlite3_value_text(apVal[0]);
+    int nByte = sqlite3_value_bytes(apVal[0]);
+    pCsr->zInput = sqlite3_malloc(nByte+1);
+    if( pCsr->zInput==0 ){
+      rc = SQLITE_NOMEM;
+    }else{
+      if( nByte>0 ) memcpy(pCsr->zInput, zByte, nByte);
+      pCsr->zInput[nByte] = 0;
+      rc = pTab->tok.xTokenize(
+          pTab->pTok, (void*)pCsr, 0, zByte, nByte, fts5tokCb
+      );
+    }
+  }
+
+  if( rc!=SQLITE_OK ) return rc;
+  return fts5tokNextMethod(pCursor);
+}
+
+/*
+** xEof - Return true if the cursor is at EOF, or false otherwise.
+*/
+static int fts5tokEofMethod(sqlite3_vtab_cursor *pCursor){
+  Fts5tokCursor *pCsr = (Fts5tokCursor *)pCursor;
+  return (pCsr->iRowid>pCsr->nRow);
+}
+
+/*
+** xColumn - Return a column value.
+*/
+static int fts5tokColumnMethod(
+  sqlite3_vtab_cursor *pCursor,   /* Cursor to retrieve value from */
+  sqlite3_context *pCtx,          /* Context for sqlite3_result_xxx() calls */
+  int iCol                        /* Index of column to read value from */
+){
+  Fts5tokCursor *pCsr = (Fts5tokCursor *)pCursor;
+  Fts5tokRow *pRow = &pCsr->aRow[pCsr->iRowid-1];
+
+  /* CREATE TABLE x(input, token, start, end, position) */
+  switch( iCol ){
+    case 0:
+      sqlite3_result_text(pCtx, pCsr->zInput, -1, SQLITE_TRANSIENT);
+      break;
+    case 1:
+      sqlite3_result_text(pCtx, pRow->zToken, -1, SQLITE_TRANSIENT);
+      break;
+    case 2:
+      sqlite3_result_int(pCtx, pRow->iStart);
+      break;
+    case 3:
+      sqlite3_result_int(pCtx, pRow->iEnd);
+      break;
+    default:
+      assert( iCol==4 );
+      sqlite3_result_int(pCtx, pRow->iPos);
+      break;
+  }
+  return SQLITE_OK;
+}
+
+/*
+** xRowid - Return the current rowid for the cursor.
+*/
+static int fts5tokRowidMethod(
+  sqlite3_vtab_cursor *pCursor,   /* Cursor to retrieve value from */
+  sqlite_int64 *pRowid            /* OUT: Rowid value */
+){
+  Fts5tokCursor *pCsr = (Fts5tokCursor *)pCursor;
+  *pRowid = (sqlite3_int64)pCsr->iRowid;
+  return SQLITE_OK;
+}
+
+/*
+** Register the fts5tok module with database connection db. Return SQLITE_OK
+** if successful or an error code if sqlite3_create_module() fails.
+*/
+int sqlite3Fts5TestRegisterTok(sqlite3 *db, fts5_api *pApi){
+  static const sqlite3_module fts5tok_module = {
+     0,                           /* iVersion      */
+     fts5tokConnectMethod,        /* xCreate       */
+     fts5tokConnectMethod,        /* xConnect      */
+     fts5tokBestIndexMethod,      /* xBestIndex    */
+     fts5tokDisconnectMethod,     /* xDisconnect   */
+     fts5tokDisconnectMethod,     /* xDestroy      */
+     fts5tokOpenMethod,           /* xOpen         */
+     fts5tokCloseMethod,          /* xClose        */
+     fts5tokFilterMethod,         /* xFilter       */
+     fts5tokNextMethod,           /* xNext         */
+     fts5tokEofMethod,            /* xEof          */
+     fts5tokColumnMethod,         /* xColumn       */
+     fts5tokRowidMethod,          /* xRowid        */
+     0,                           /* xUpdate       */
+     0,                           /* xBegin        */
+     0,                           /* xSync         */
+     0,                           /* xCommit       */
+     0,                           /* xRollback     */
+     0,                           /* xFindFunction */
+     0,                           /* xRename       */
+     0,                           /* xSavepoint    */
+     0,                           /* xRelease      */
+     0,                           /* xRollbackTo   */
+     0,                           /* xShadowName   */
+     0                            /* xIntegrity    */
+  };
+  int rc;                         /* Return code */
+
+  rc = sqlite3_create_module(db, "fts5tokenize", &fts5tok_module, (void*)pApi);
+  return rc;
+}
+
+#endif /* defined(SQLITE_TEST) && defined(SQLITE_ENABLE_FTS5) */
diff --git a/ext/fts5/fts5_tokenize.c b/ext/fts5/fts5_tokenize.c
new file mode 100644
index 0000000000000000000000000000000000000000..b8a1136465837e1012bc26b11d1558a789553b82
--- /dev/null
+++ b/ext/fts5/fts5_tokenize.c
@@ -0,0 +1,1490 @@
+/*
+** 2014 May 31
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+*/
+
+
+#include "fts5Int.h"
+
+/**************************************************************************
+** Start of ascii tokenizer implementation.
+*/
+
+/*
+** For tokenizers with no "unicode" modifier, the set of token characters
+** is the same as the set of ASCII range alphanumeric characters. 
+*/
+static unsigned char aAsciiTokenChar[128] = {
+  0, 0, 0, 0, 0, 0, 0, 0,   0, 0, 0, 0, 0, 0, 0, 0,   /* 0x00..0x0F */
+  0, 0, 0, 0, 0, 0, 0, 0,   0, 0, 0, 0, 0, 0, 0, 0,   /* 0x10..0x1F */
+  0, 0, 0, 0, 0, 0, 0, 0,   0, 0, 0, 0, 0, 0, 0, 0,   /* 0x20..0x2F */
+  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 0, 0, 0, 0, 0, 0,   /* 0x30..0x3F */
+  0, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,   /* 0x40..0x4F */
+  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 0, 0, 0, 0, 0,   /* 0x50..0x5F */
+  0, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,   /* 0x60..0x6F */
+  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 0, 0, 0, 0, 0,   /* 0x70..0x7F */
+};
+
+typedef struct AsciiTokenizer AsciiTokenizer;
+struct AsciiTokenizer {
+  unsigned char aTokenChar[128];
+};
+
+static void fts5AsciiAddExceptions(
+  AsciiTokenizer *p, 
+  const char *zArg, 
+  int bTokenChars
+){
+  int i;
+  for(i=0; zArg[i]; i++){
+    if( (zArg[i] & 0x80)==0 ){
+      p->aTokenChar[(int)zArg[i]] = (unsigned char)bTokenChars;
+    }
+  }
+}
+
+/*
+** Delete a "ascii" tokenizer.
+*/
+static void fts5AsciiDelete(Fts5Tokenizer *p){
+  sqlite3_free(p);
+}
+
+/*
+** Create an "ascii" tokenizer.
+*/
+static int fts5AsciiCreate(
+  void *pUnused, 
+  const char **azArg, int nArg,
+  Fts5Tokenizer **ppOut
+){
+  int rc = SQLITE_OK;
+  AsciiTokenizer *p = 0;
+  UNUSED_PARAM(pUnused);
+  if( nArg%2 ){
+    rc = SQLITE_ERROR;
+  }else{
+    p = sqlite3_malloc(sizeof(AsciiTokenizer));
+    if( p==0 ){
+      rc = SQLITE_NOMEM;
+    }else{
+      int i;
+      memset(p, 0, sizeof(AsciiTokenizer));
+      memcpy(p->aTokenChar, aAsciiTokenChar, sizeof(aAsciiTokenChar));
+      for(i=0; rc==SQLITE_OK && i<nArg; i+=2){
+        const char *zArg = azArg[i+1];
+        if( 0==sqlite3_stricmp(azArg[i], "tokenchars") ){
+          fts5AsciiAddExceptions(p, zArg, 1);
+        }else
+        if( 0==sqlite3_stricmp(azArg[i], "separators") ){
+          fts5AsciiAddExceptions(p, zArg, 0);
+        }else{
+          rc = SQLITE_ERROR;
+        }
+      }
+      if( rc!=SQLITE_OK ){
+        fts5AsciiDelete((Fts5Tokenizer*)p);
+        p = 0;
+      }
+    }
+  }
+
+  *ppOut = (Fts5Tokenizer*)p;
+  return rc;
+}
+
+
+static void asciiFold(char *aOut, const char *aIn, int nByte){
+  int i;
+  for(i=0; i<nByte; i++){
+    char c = aIn[i];
+    if( c>='A' && c<='Z' ) c += 32;
+    aOut[i] = c;
+  }
+}
+
+/*
+** Tokenize some text using the ascii tokenizer.
+*/
+static int fts5AsciiTokenize(
+  Fts5Tokenizer *pTokenizer,
+  void *pCtx,
+  int iUnused,
+  const char *pText, int nText,
+  int (*xToken)(void*, int, const char*, int nToken, int iStart, int iEnd)
+){
+  AsciiTokenizer *p = (AsciiTokenizer*)pTokenizer;
+  int rc = SQLITE_OK;
+  int ie;
+  int is = 0;
+
+  char aFold[64];
+  int nFold = sizeof(aFold);
+  char *pFold = aFold;
+  unsigned char *a = p->aTokenChar;
+
+  UNUSED_PARAM(iUnused);
+
+  while( is<nText && rc==SQLITE_OK ){
+    int nByte;
+
+    /* Skip any leading divider characters. */
+    while( is<nText && ((pText[is]&0x80)==0 && a[(int)pText[is]]==0) ){
+      is++;
+    }
+    if( is==nText ) break;
+
+    /* Count the token characters */
+    ie = is+1;
+    while( ie<nText && ((pText[ie]&0x80) || a[(int)pText[ie]] ) ){
+      ie++;
+    }
+
+    /* Fold to lower case */
+    nByte = ie-is;
+    if( nByte>nFold ){
+      if( pFold!=aFold ) sqlite3_free(pFold);
+      pFold = sqlite3_malloc64((sqlite3_int64)nByte*2);
+      if( pFold==0 ){
+        rc = SQLITE_NOMEM;
+        break;
+      }
+      nFold = nByte*2;
+    }
+    asciiFold(pFold, &pText[is], nByte);
+
+    /* Invoke the token callback */
+    rc = xToken(pCtx, 0, pFold, nByte, is, ie);
+    is = ie+1;
+  }
+  
+  if( pFold!=aFold ) sqlite3_free(pFold);
+  if( rc==SQLITE_DONE ) rc = SQLITE_OK;
+  return rc;
+}
+
+/**************************************************************************
+** Start of unicode61 tokenizer implementation.
+*/
+
+
+/*
+** The following two macros - READ_UTF8 and WRITE_UTF8 - have been copied
+** from the sqlite3 source file utf.c. If this file is compiled as part
+** of the amalgamation, they are not required.
+*/
+#ifndef SQLITE_AMALGAMATION
+
+static const unsigned char sqlite3Utf8Trans1[] = {
+  0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+  0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
+  0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
+  0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
+  0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+  0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
+  0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+  0x00, 0x01, 0x02, 0x03, 0x00, 0x01, 0x00, 0x00,
+};
+
+#define READ_UTF8(zIn, zTerm, c)                           \
+  c = *(zIn++);                                            \
+  if( c>=0xc0 ){                                           \
+    c = sqlite3Utf8Trans1[c-0xc0];                         \
+    while( zIn<zTerm && (*zIn & 0xc0)==0x80 ){             \
+      c = (c<<6) + (0x3f & *(zIn++));                      \
+    }                                                      \
+    if( c<0x80                                             \
+        || (c&0xFFFFF800)==0xD800                          \
+        || (c&0xFFFFFFFE)==0xFFFE ){  c = 0xFFFD; }        \
+  }
+
+
+#define WRITE_UTF8(zOut, c) {                          \
+  if( c<0x00080 ){                                     \
+    *zOut++ = (unsigned char)(c&0xFF);                 \
+  }                                                    \
+  else if( c<0x00800 ){                                \
+    *zOut++ = 0xC0 + (unsigned char)((c>>6)&0x1F);     \
+    *zOut++ = 0x80 + (unsigned char)(c & 0x3F);        \
+  }                                                    \
+  else if( c<0x10000 ){                                \
+    *zOut++ = 0xE0 + (unsigned char)((c>>12)&0x0F);    \
+    *zOut++ = 0x80 + (unsigned char)((c>>6) & 0x3F);   \
+    *zOut++ = 0x80 + (unsigned char)(c & 0x3F);        \
+  }else{                                               \
+    *zOut++ = 0xF0 + (unsigned char)((c>>18) & 0x07);  \
+    *zOut++ = 0x80 + (unsigned char)((c>>12) & 0x3F);  \
+    *zOut++ = 0x80 + (unsigned char)((c>>6) & 0x3F);   \
+    *zOut++ = 0x80 + (unsigned char)(c & 0x3F);        \
+  }                                                    \
+}
+
+#endif /* ifndef SQLITE_AMALGAMATION */
+
+#define FTS5_SKIP_UTF8(zIn) {                               \
+  if( ((unsigned char)(*(zIn++)))>=0xc0 ){                              \
+    while( (((unsigned char)*zIn) & 0xc0)==0x80 ){ zIn++; }             \
+  }                                                    \
+}
+
+typedef struct Unicode61Tokenizer Unicode61Tokenizer;
+struct Unicode61Tokenizer {
+  unsigned char aTokenChar[128];  /* ASCII range token characters */
+  char *aFold;                    /* Buffer to fold text into */
+  int nFold;                      /* Size of aFold[] in bytes */
+  int eRemoveDiacritic;           /* True if remove_diacritics=1 is set */
+  int nException;
+  int *aiException;
+
+  unsigned char aCategory[32];    /* True for token char categories */
+};
+
+/* Values for eRemoveDiacritic (must match internals of fts5_unicode2.c) */
+#define FTS5_REMOVE_DIACRITICS_NONE    0
+#define FTS5_REMOVE_DIACRITICS_SIMPLE  1
+#define FTS5_REMOVE_DIACRITICS_COMPLEX 2
+
+static int fts5UnicodeAddExceptions(
+  Unicode61Tokenizer *p,          /* Tokenizer object */
+  const char *z,                  /* Characters to treat as exceptions */
+  int bTokenChars                 /* 1 for 'tokenchars', 0 for 'separators' */
+){
+  int rc = SQLITE_OK;
+  int n = (int)strlen(z);
+  int *aNew;
+
+  if( n>0 ){
+    aNew = (int*)sqlite3_realloc64(p->aiException,
+                                   (n+p->nException)*sizeof(int));
+    if( aNew ){
+      int nNew = p->nException;
+      const unsigned char *zCsr = (const unsigned char*)z;
+      const unsigned char *zTerm = (const unsigned char*)&z[n];
+      while( zCsr<zTerm ){
+        u32 iCode;
+        int bToken;
+        READ_UTF8(zCsr, zTerm, iCode);
+        if( iCode<128 ){
+          p->aTokenChar[iCode] = (unsigned char)bTokenChars;
+        }else{
+          bToken = p->aCategory[sqlite3Fts5UnicodeCategory(iCode)];
+          assert( (bToken==0 || bToken==1) ); 
+          assert( (bTokenChars==0 || bTokenChars==1) );
+          if( bToken!=bTokenChars && sqlite3Fts5UnicodeIsdiacritic(iCode)==0 ){
+            int i;
+            for(i=0; i<nNew; i++){
+              if( (u32)aNew[i]>iCode ) break;
+            }
+            memmove(&aNew[i+1], &aNew[i], (nNew-i)*sizeof(int));
+            aNew[i] = iCode;
+            nNew++;
+          }
+        }
+      }
+      p->aiException = aNew;
+      p->nException = nNew;
+    }else{
+      rc = SQLITE_NOMEM;
+    }
+  }
+
+  return rc;
+}
+
+/*
+** Return true if the p->aiException[] array contains the value iCode.
+*/
+static int fts5UnicodeIsException(Unicode61Tokenizer *p, int iCode){
+  if( p->nException>0 ){
+    int *a = p->aiException;
+    int iLo = 0;
+    int iHi = p->nException-1;
+
+    while( iHi>=iLo ){
+      int iTest = (iHi + iLo) / 2;
+      if( iCode==a[iTest] ){
+        return 1;
+      }else if( iCode>a[iTest] ){
+        iLo = iTest+1;
+      }else{
+        iHi = iTest-1;
+      }
+    }
+  }
+
+  return 0;
+}
+
+/*
+** Delete a "unicode61" tokenizer.
+*/
+static void fts5UnicodeDelete(Fts5Tokenizer *pTok){
+  if( pTok ){
+    Unicode61Tokenizer *p = (Unicode61Tokenizer*)pTok;
+    sqlite3_free(p->aiException);
+    sqlite3_free(p->aFold);
+    sqlite3_free(p);
+  }
+  return;
+}
+
+static int unicodeSetCategories(Unicode61Tokenizer *p, const char *zCat){
+  const char *z = zCat;
+
+  while( *z ){
+    while( *z==' ' || *z=='\t' ) z++;
+    if( *z && sqlite3Fts5UnicodeCatParse(z, p->aCategory) ){
+      return SQLITE_ERROR;
+    }
+    while( *z!=' ' && *z!='\t' && *z!='\0' ) z++;
+  }
+
+  sqlite3Fts5UnicodeAscii(p->aCategory, p->aTokenChar);
+  return SQLITE_OK;
+}
+
+/*
+** Create a "unicode61" tokenizer.
+*/
+static int fts5UnicodeCreate(
+  void *pUnused, 
+  const char **azArg, int nArg,
+  Fts5Tokenizer **ppOut
+){
+  int rc = SQLITE_OK;             /* Return code */
+  Unicode61Tokenizer *p = 0;      /* New tokenizer object */ 
+
+  UNUSED_PARAM(pUnused);
+
+  if( nArg%2 ){
+    rc = SQLITE_ERROR;
+  }else{
+    p = (Unicode61Tokenizer*)sqlite3_malloc(sizeof(Unicode61Tokenizer));
+    if( p ){
+      const char *zCat = "L* N* Co";
+      int i;
+      memset(p, 0, sizeof(Unicode61Tokenizer));
+
+      p->eRemoveDiacritic = FTS5_REMOVE_DIACRITICS_SIMPLE;
+      p->nFold = 64;
+      p->aFold = sqlite3_malloc64(p->nFold * sizeof(char));
+      if( p->aFold==0 ){
+        rc = SQLITE_NOMEM;
+      }
+
+      /* Search for a "categories" argument */
+      for(i=0; rc==SQLITE_OK && i<nArg; i+=2){
+        if( 0==sqlite3_stricmp(azArg[i], "categories") ){
+          zCat = azArg[i+1];
+        }
+      }
+      if( rc==SQLITE_OK ){
+        rc = unicodeSetCategories(p, zCat);
+      }
+
+      for(i=0; rc==SQLITE_OK && i<nArg; i+=2){
+        const char *zArg = azArg[i+1];
+        if( 0==sqlite3_stricmp(azArg[i], "remove_diacritics") ){
+          if( (zArg[0]!='0' && zArg[0]!='1' && zArg[0]!='2') || zArg[1] ){
+            rc = SQLITE_ERROR;
+          }else{
+            p->eRemoveDiacritic = (zArg[0] - '0');
+            assert( p->eRemoveDiacritic==FTS5_REMOVE_DIACRITICS_NONE
+                 || p->eRemoveDiacritic==FTS5_REMOVE_DIACRITICS_SIMPLE
+                 || p->eRemoveDiacritic==FTS5_REMOVE_DIACRITICS_COMPLEX
+            );
+          }
+        }else
+        if( 0==sqlite3_stricmp(azArg[i], "tokenchars") ){
+          rc = fts5UnicodeAddExceptions(p, zArg, 1);
+        }else
+        if( 0==sqlite3_stricmp(azArg[i], "separators") ){
+          rc = fts5UnicodeAddExceptions(p, zArg, 0);
+        }else
+        if( 0==sqlite3_stricmp(azArg[i], "categories") ){
+          /* no-op */
+        }else{
+          rc = SQLITE_ERROR;
+        }
+      }
+    }else{
+      rc = SQLITE_NOMEM;
+    }
+    if( rc!=SQLITE_OK ){
+      fts5UnicodeDelete((Fts5Tokenizer*)p);
+      p = 0;
+    }
+    *ppOut = (Fts5Tokenizer*)p;
+  }
+  return rc;
+}
+
+/*
+** Return true if, for the purposes of tokenizing with the tokenizer
+** passed as the first argument, codepoint iCode is considered a token 
+** character (not a separator).
+*/
+static int fts5UnicodeIsAlnum(Unicode61Tokenizer *p, int iCode){
+  return (
+    p->aCategory[sqlite3Fts5UnicodeCategory((u32)iCode)]
+    ^ fts5UnicodeIsException(p, iCode)
+  );
+}
+
+static int fts5UnicodeTokenize(
+  Fts5Tokenizer *pTokenizer,
+  void *pCtx,
+  int iUnused,
+  const char *pText, int nText,
+  int (*xToken)(void*, int, const char*, int nToken, int iStart, int iEnd)
+){
+  Unicode61Tokenizer *p = (Unicode61Tokenizer*)pTokenizer;
+  int rc = SQLITE_OK;
+  unsigned char *a = p->aTokenChar;
+
+  unsigned char *zTerm = (unsigned char*)&pText[nText];
+  unsigned char *zCsr = (unsigned char *)pText;
+
+  /* Output buffer */
+  char *aFold = p->aFold;
+  int nFold = p->nFold;
+  const char *pEnd = &aFold[nFold-6];
+
+  UNUSED_PARAM(iUnused);
+
+  /* Each iteration of this loop gobbles up a contiguous run of separators,
+  ** then the next token.  */
+  while( rc==SQLITE_OK ){
+    u32 iCode;                    /* non-ASCII codepoint read from input */
+    char *zOut = aFold;
+    int is;
+    int ie;
+
+    /* Skip any separator characters. */
+    while( 1 ){
+      if( zCsr>=zTerm ) goto tokenize_done;
+      if( *zCsr & 0x80 ) {
+        /* A character outside of the ascii range. Skip past it if it is
+        ** a separator character. Or break out of the loop if it is not. */
+        is = zCsr - (unsigned char*)pText;
+        READ_UTF8(zCsr, zTerm, iCode);
+        if( fts5UnicodeIsAlnum(p, iCode) ){
+          goto non_ascii_tokenchar;
+        }
+      }else{
+        if( a[*zCsr] ){
+          is = zCsr - (unsigned char*)pText;
+          goto ascii_tokenchar;
+        }
+        zCsr++;
+      }
+    }
+
+    /* Run through the tokenchars. Fold them into the output buffer along
+    ** the way.  */
+    while( zCsr<zTerm ){
+
+      /* Grow the output buffer so that there is sufficient space to fit the
+      ** largest possible utf-8 character.  */
+      if( zOut>pEnd ){
+        aFold = sqlite3_malloc64((sqlite3_int64)nFold*2);
+        if( aFold==0 ){
+          rc = SQLITE_NOMEM;
+          goto tokenize_done;
+        }
+        zOut = &aFold[zOut - p->aFold];
+        memcpy(aFold, p->aFold, nFold);
+        sqlite3_free(p->aFold);
+        p->aFold = aFold;
+        p->nFold = nFold = nFold*2;
+        pEnd = &aFold[nFold-6];
+      }
+
+      if( *zCsr & 0x80 ){
+        /* An non-ascii-range character. Fold it into the output buffer if
+        ** it is a token character, or break out of the loop if it is not. */
+        READ_UTF8(zCsr, zTerm, iCode);
+        if( fts5UnicodeIsAlnum(p,iCode)||sqlite3Fts5UnicodeIsdiacritic(iCode) ){
+ non_ascii_tokenchar:
+          iCode = sqlite3Fts5UnicodeFold(iCode, p->eRemoveDiacritic);
+          if( iCode ) WRITE_UTF8(zOut, iCode);
+        }else{
+          break;
+        }
+      }else if( a[*zCsr]==0 ){
+        /* An ascii-range separator character. End of token. */
+        break; 
+      }else{
+ ascii_tokenchar:
+        if( *zCsr>='A' && *zCsr<='Z' ){
+          *zOut++ = *zCsr + 32;
+        }else{
+          *zOut++ = *zCsr;
+        }
+        zCsr++;
+      }
+      ie = zCsr - (unsigned char*)pText;
+    }
+
+    /* Invoke the token callback */
+    rc = xToken(pCtx, 0, aFold, zOut-aFold, is, ie); 
+  }
+  
+ tokenize_done:
+  if( rc==SQLITE_DONE ) rc = SQLITE_OK;
+  return rc;
+}
+
+/**************************************************************************
+** Start of porter stemmer implementation.
+*/
+
+/* Any tokens larger than this (in bytes) are passed through without
+** stemming. */
+#define FTS5_PORTER_MAX_TOKEN 64
+
+typedef struct PorterTokenizer PorterTokenizer;
+struct PorterTokenizer {
+  fts5_tokenizer_v2 tokenizer_v2; /* Parent tokenizer module */
+  Fts5Tokenizer *pTokenizer;      /* Parent tokenizer instance */
+  char aBuf[FTS5_PORTER_MAX_TOKEN + 64];
+};
+
+/*
+** Delete a "porter" tokenizer.
+*/
+static void fts5PorterDelete(Fts5Tokenizer *pTok){
+  if( pTok ){
+    PorterTokenizer *p = (PorterTokenizer*)pTok;
+    if( p->pTokenizer ){
+      p->tokenizer_v2.xDelete(p->pTokenizer);
+    }
+    sqlite3_free(p);
+  }
+}
+
+/*
+** Create a "porter" tokenizer.
+*/
+static int fts5PorterCreate(
+  void *pCtx, 
+  const char **azArg, int nArg,
+  Fts5Tokenizer **ppOut
+){
+  fts5_api *pApi = (fts5_api*)pCtx;
+  int rc = SQLITE_OK;
+  PorterTokenizer *pRet;
+  void *pUserdata = 0;
+  const char *zBase = "unicode61";
+  fts5_tokenizer_v2 *pV2 = 0;
+
+  if( nArg>0 ){
+    zBase = azArg[0];
+  }
+
+  pRet = (PorterTokenizer*)sqlite3_malloc(sizeof(PorterTokenizer));
+  if( pRet ){
+    memset(pRet, 0, sizeof(PorterTokenizer));
+    rc = pApi->xFindTokenizer_v2(pApi, zBase, &pUserdata, &pV2);
+  }else{
+    rc = SQLITE_NOMEM;
+  }
+  if( rc==SQLITE_OK ){
+    int nArg2 = (nArg>0 ? nArg-1 : 0);
+    const char **az2 = (nArg2 ? &azArg[1] : 0);
+    memcpy(&pRet->tokenizer_v2, pV2, sizeof(fts5_tokenizer_v2));
+    rc = pRet->tokenizer_v2.xCreate(pUserdata, az2, nArg2, &pRet->pTokenizer);
+  }
+
+  if( rc!=SQLITE_OK ){
+    fts5PorterDelete((Fts5Tokenizer*)pRet);
+    pRet = 0;
+  }
+  *ppOut = (Fts5Tokenizer*)pRet;
+  return rc;
+}
+
+typedef struct PorterContext PorterContext;
+struct PorterContext {
+  void *pCtx;
+  int (*xToken)(void*, int, const char*, int, int, int);
+  char *aBuf;
+};
+
+typedef struct PorterRule PorterRule;
+struct PorterRule {
+  const char *zSuffix;
+  int nSuffix;
+  int (*xCond)(char *zStem, int nStem);
+  const char *zOutput;
+  int nOutput;
+};
+
+#if 0
+static int fts5PorterApply(char *aBuf, int *pnBuf, PorterRule *aRule){
+  int ret = -1;
+  int nBuf = *pnBuf;
+  PorterRule *p;
+
+  for(p=aRule; p->zSuffix; p++){
+    assert( strlen(p->zSuffix)==p->nSuffix );
+    assert( strlen(p->zOutput)==p->nOutput );
+    if( nBuf<p->nSuffix ) continue;
+    if( 0==memcmp(&aBuf[nBuf - p->nSuffix], p->zSuffix, p->nSuffix) ) break;
+  }
+
+  if( p->zSuffix ){
+    int nStem = nBuf - p->nSuffix;
+    if( p->xCond==0 || p->xCond(aBuf, nStem) ){
+      memcpy(&aBuf[nStem], p->zOutput, p->nOutput);
+      *pnBuf = nStem + p->nOutput;
+      ret = p - aRule;
+    }
+  }
+
+  return ret;
+}
+#endif
+
+static int fts5PorterIsVowel(char c, int bYIsVowel){
+  return (
+      c=='a' || c=='e' || c=='i' || c=='o' || c=='u' || (bYIsVowel && c=='y')
+  );
+}
+
+static int fts5PorterGobbleVC(char *zStem, int nStem, int bPrevCons){
+  int i;
+  int bCons = bPrevCons;
+
+  /* Scan for a vowel */
+  for(i=0; i<nStem; i++){
+    if( 0==(bCons = !fts5PorterIsVowel(zStem[i], bCons)) ) break;
+  }
+
+  /* Scan for a consonent */
+  for(i++; i<nStem; i++){
+    if( (bCons = !fts5PorterIsVowel(zStem[i], bCons)) ) return i+1;
+  }
+  return 0;
+}
+
+/* porter rule condition: (m > 0) */
+static int fts5Porter_MGt0(char *zStem, int nStem){
+  return !!fts5PorterGobbleVC(zStem, nStem, 0);
+}
+
+/* porter rule condition: (m > 1) */
+static int fts5Porter_MGt1(char *zStem, int nStem){
+  int n;
+  n = fts5PorterGobbleVC(zStem, nStem, 0);
+  if( n && fts5PorterGobbleVC(&zStem[n], nStem-n, 1) ){
+    return 1;
+  }
+  return 0;
+}
+
+/* porter rule condition: (m = 1) */
+static int fts5Porter_MEq1(char *zStem, int nStem){
+  int n;
+  n = fts5PorterGobbleVC(zStem, nStem, 0);
+  if( n && 0==fts5PorterGobbleVC(&zStem[n], nStem-n, 1) ){
+    return 1;
+  }
+  return 0;
+}
+
+/* porter rule condition: (*o) */
+static int fts5Porter_Ostar(char *zStem, int nStem){
+  if( zStem[nStem-1]=='w' || zStem[nStem-1]=='x' || zStem[nStem-1]=='y' ){
+    return 0;
+  }else{
+    int i;
+    int mask = 0;
+    int bCons = 0;
+    for(i=0; i<nStem; i++){
+      bCons = !fts5PorterIsVowel(zStem[i], bCons);
+      assert( bCons==0 || bCons==1 );
+      mask = (mask << 1) + bCons;
+    }
+    return ((mask & 0x0007)==0x0005);
+  }
+}
+
+/* porter rule condition: (m > 1 and (*S or *T)) */
+static int fts5Porter_MGt1_and_S_or_T(char *zStem, int nStem){
+  assert( nStem>0 );
+  return (zStem[nStem-1]=='s' || zStem[nStem-1]=='t') 
+      && fts5Porter_MGt1(zStem, nStem);
+}
+
+/* porter rule condition: (*v*) */
+static int fts5Porter_Vowel(char *zStem, int nStem){
+  int i;
+  for(i=0; i<nStem; i++){
+    if( fts5PorterIsVowel(zStem[i], i>0) ){
+      return 1;
+    }
+  }
+  return 0;
+}
+
+
+/**************************************************************************
+***************************************************************************
+** GENERATED CODE STARTS HERE (mkportersteps.tcl)
+*/
+
+static int fts5PorterStep4(char *aBuf, int *pnBuf){
+  int ret = 0;
+  int nBuf = *pnBuf;
+  switch( aBuf[nBuf-2] ){
+    
+    case 'a': 
+      if( nBuf>2 && 0==memcmp("al", &aBuf[nBuf-2], 2) ){
+        if( fts5Porter_MGt1(aBuf, nBuf-2) ){
+          *pnBuf = nBuf - 2;
+        }
+      }
+      break;
+  
+    case 'c': 
+      if( nBuf>4 && 0==memcmp("ance", &aBuf[nBuf-4], 4) ){
+        if( fts5Porter_MGt1(aBuf, nBuf-4) ){
+          *pnBuf = nBuf - 4;
+        }
+      }else if( nBuf>4 && 0==memcmp("ence", &aBuf[nBuf-4], 4) ){
+        if( fts5Porter_MGt1(aBuf, nBuf-4) ){
+          *pnBuf = nBuf - 4;
+        }
+      }
+      break;
+  
+    case 'e': 
+      if( nBuf>2 && 0==memcmp("er", &aBuf[nBuf-2], 2) ){
+        if( fts5Porter_MGt1(aBuf, nBuf-2) ){
+          *pnBuf = nBuf - 2;
+        }
+      }
+      break;
+  
+    case 'i': 
+      if( nBuf>2 && 0==memcmp("ic", &aBuf[nBuf-2], 2) ){
+        if( fts5Porter_MGt1(aBuf, nBuf-2) ){
+          *pnBuf = nBuf - 2;
+        }
+      }
+      break;
+  
+    case 'l': 
+      if( nBuf>4 && 0==memcmp("able", &aBuf[nBuf-4], 4) ){
+        if( fts5Porter_MGt1(aBuf, nBuf-4) ){
+          *pnBuf = nBuf - 4;
+        }
+      }else if( nBuf>4 && 0==memcmp("ible", &aBuf[nBuf-4], 4) ){
+        if( fts5Porter_MGt1(aBuf, nBuf-4) ){
+          *pnBuf = nBuf - 4;
+        }
+      }
+      break;
+  
+    case 'n': 
+      if( nBuf>3 && 0==memcmp("ant", &aBuf[nBuf-3], 3) ){
+        if( fts5Porter_MGt1(aBuf, nBuf-3) ){
+          *pnBuf = nBuf - 3;
+        }
+      }else if( nBuf>5 && 0==memcmp("ement", &aBuf[nBuf-5], 5) ){
+        if( fts5Porter_MGt1(aBuf, nBuf-5) ){
+          *pnBuf = nBuf - 5;
+        }
+      }else if( nBuf>4 && 0==memcmp("ment", &aBuf[nBuf-4], 4) ){
+        if( fts5Porter_MGt1(aBuf, nBuf-4) ){
+          *pnBuf = nBuf - 4;
+        }
+      }else if( nBuf>3 && 0==memcmp("ent", &aBuf[nBuf-3], 3) ){
+        if( fts5Porter_MGt1(aBuf, nBuf-3) ){
+          *pnBuf = nBuf - 3;
+        }
+      }
+      break;
+  
+    case 'o': 
+      if( nBuf>3 && 0==memcmp("ion", &aBuf[nBuf-3], 3) ){
+        if( fts5Porter_MGt1_and_S_or_T(aBuf, nBuf-3) ){
+          *pnBuf = nBuf - 3;
+        }
+      }else if( nBuf>2 && 0==memcmp("ou", &aBuf[nBuf-2], 2) ){
+        if( fts5Porter_MGt1(aBuf, nBuf-2) ){
+          *pnBuf = nBuf - 2;
+        }
+      }
+      break;
+  
+    case 's': 
+      if( nBuf>3 && 0==memcmp("ism", &aBuf[nBuf-3], 3) ){
+        if( fts5Porter_MGt1(aBuf, nBuf-3) ){
+          *pnBuf = nBuf - 3;
+        }
+      }
+      break;
+  
+    case 't': 
+      if( nBuf>3 && 0==memcmp("ate", &aBuf[nBuf-3], 3) ){
+        if( fts5Porter_MGt1(aBuf, nBuf-3) ){
+          *pnBuf = nBuf - 3;
+        }
+      }else if( nBuf>3 && 0==memcmp("iti", &aBuf[nBuf-3], 3) ){
+        if( fts5Porter_MGt1(aBuf, nBuf-3) ){
+          *pnBuf = nBuf - 3;
+        }
+      }
+      break;
+  
+    case 'u': 
+      if( nBuf>3 && 0==memcmp("ous", &aBuf[nBuf-3], 3) ){
+        if( fts5Porter_MGt1(aBuf, nBuf-3) ){
+          *pnBuf = nBuf - 3;
+        }
+      }
+      break;
+  
+    case 'v': 
+      if( nBuf>3 && 0==memcmp("ive", &aBuf[nBuf-3], 3) ){
+        if( fts5Porter_MGt1(aBuf, nBuf-3) ){
+          *pnBuf = nBuf - 3;
+        }
+      }
+      break;
+  
+    case 'z': 
+      if( nBuf>3 && 0==memcmp("ize", &aBuf[nBuf-3], 3) ){
+        if( fts5Porter_MGt1(aBuf, nBuf-3) ){
+          *pnBuf = nBuf - 3;
+        }
+      }
+      break;
+  
+  }
+  return ret;
+}
+  
+
+static int fts5PorterStep1B2(char *aBuf, int *pnBuf){
+  int ret = 0;
+  int nBuf = *pnBuf;
+  switch( aBuf[nBuf-2] ){
+    
+    case 'a': 
+      if( nBuf>2 && 0==memcmp("at", &aBuf[nBuf-2], 2) ){
+        memcpy(&aBuf[nBuf-2], "ate", 3);
+        *pnBuf = nBuf - 2 + 3;
+        ret = 1;
+      }
+      break;
+  
+    case 'b': 
+      if( nBuf>2 && 0==memcmp("bl", &aBuf[nBuf-2], 2) ){
+        memcpy(&aBuf[nBuf-2], "ble", 3);
+        *pnBuf = nBuf - 2 + 3;
+        ret = 1;
+      }
+      break;
+  
+    case 'i': 
+      if( nBuf>2 && 0==memcmp("iz", &aBuf[nBuf-2], 2) ){
+        memcpy(&aBuf[nBuf-2], "ize", 3);
+        *pnBuf = nBuf - 2 + 3;
+        ret = 1;
+      }
+      break;
+  
+  }
+  return ret;
+}
+  
+
+static int fts5PorterStep2(char *aBuf, int *pnBuf){
+  int ret = 0;
+  int nBuf = *pnBuf;
+  switch( aBuf[nBuf-2] ){
+    
+    case 'a': 
+      if( nBuf>7 && 0==memcmp("ational", &aBuf[nBuf-7], 7) ){
+        if( fts5Porter_MGt0(aBuf, nBuf-7) ){
+          memcpy(&aBuf[nBuf-7], "ate", 3);
+          *pnBuf = nBuf - 7 + 3;
+        }
+      }else if( nBuf>6 && 0==memcmp("tional", &aBuf[nBuf-6], 6) ){
+        if( fts5Porter_MGt0(aBuf, nBuf-6) ){
+          memcpy(&aBuf[nBuf-6], "tion", 4);
+          *pnBuf = nBuf - 6 + 4;
+        }
+      }
+      break;
+  
+    case 'c': 
+      if( nBuf>4 && 0==memcmp("enci", &aBuf[nBuf-4], 4) ){
+        if( fts5Porter_MGt0(aBuf, nBuf-4) ){
+          memcpy(&aBuf[nBuf-4], "ence", 4);
+          *pnBuf = nBuf - 4 + 4;
+        }
+      }else if( nBuf>4 && 0==memcmp("anci", &aBuf[nBuf-4], 4) ){
+        if( fts5Porter_MGt0(aBuf, nBuf-4) ){
+          memcpy(&aBuf[nBuf-4], "ance", 4);
+          *pnBuf = nBuf - 4 + 4;
+        }
+      }
+      break;
+  
+    case 'e': 
+      if( nBuf>4 && 0==memcmp("izer", &aBuf[nBuf-4], 4) ){
+        if( fts5Porter_MGt0(aBuf, nBuf-4) ){
+          memcpy(&aBuf[nBuf-4], "ize", 3);
+          *pnBuf = nBuf - 4 + 3;
+        }
+      }
+      break;
+  
+    case 'g': 
+      if( nBuf>4 && 0==memcmp("logi", &aBuf[nBuf-4], 4) ){
+        if( fts5Porter_MGt0(aBuf, nBuf-4) ){
+          memcpy(&aBuf[nBuf-4], "log", 3);
+          *pnBuf = nBuf - 4 + 3;
+        }
+      }
+      break;
+  
+    case 'l': 
+      if( nBuf>3 && 0==memcmp("bli", &aBuf[nBuf-3], 3) ){
+        if( fts5Porter_MGt0(aBuf, nBuf-3) ){
+          memcpy(&aBuf[nBuf-3], "ble", 3);
+          *pnBuf = nBuf - 3 + 3;
+        }
+      }else if( nBuf>4 && 0==memcmp("alli", &aBuf[nBuf-4], 4) ){
+        if( fts5Porter_MGt0(aBuf, nBuf-4) ){
+          memcpy(&aBuf[nBuf-4], "al", 2);
+          *pnBuf = nBuf - 4 + 2;
+        }
+      }else if( nBuf>5 && 0==memcmp("entli", &aBuf[nBuf-5], 5) ){
+        if( fts5Porter_MGt0(aBuf, nBuf-5) ){
+          memcpy(&aBuf[nBuf-5], "ent", 3);
+          *pnBuf = nBuf - 5 + 3;
+        }
+      }else if( nBuf>3 && 0==memcmp("eli", &aBuf[nBuf-3], 3) ){
+        if( fts5Porter_MGt0(aBuf, nBuf-3) ){
+          memcpy(&aBuf[nBuf-3], "e", 1);
+          *pnBuf = nBuf - 3 + 1;
+        }
+      }else if( nBuf>5 && 0==memcmp("ousli", &aBuf[nBuf-5], 5) ){
+        if( fts5Porter_MGt0(aBuf, nBuf-5) ){
+          memcpy(&aBuf[nBuf-5], "ous", 3);
+          *pnBuf = nBuf - 5 + 3;
+        }
+      }
+      break;
+  
+    case 'o': 
+      if( nBuf>7 && 0==memcmp("ization", &aBuf[nBuf-7], 7) ){
+        if( fts5Porter_MGt0(aBuf, nBuf-7) ){
+          memcpy(&aBuf[nBuf-7], "ize", 3);
+          *pnBuf = nBuf - 7 + 3;
+        }
+      }else if( nBuf>5 && 0==memcmp("ation", &aBuf[nBuf-5], 5) ){
+        if( fts5Porter_MGt0(aBuf, nBuf-5) ){
+          memcpy(&aBuf[nBuf-5], "ate", 3);
+          *pnBuf = nBuf - 5 + 3;
+        }
+      }else if( nBuf>4 && 0==memcmp("ator", &aBuf[nBuf-4], 4) ){
+        if( fts5Porter_MGt0(aBuf, nBuf-4) ){
+          memcpy(&aBuf[nBuf-4], "ate", 3);
+          *pnBuf = nBuf - 4 + 3;
+        }
+      }
+      break;
+  
+    case 's': 
+      if( nBuf>5 && 0==memcmp("alism", &aBuf[nBuf-5], 5) ){
+        if( fts5Porter_MGt0(aBuf, nBuf-5) ){
+          memcpy(&aBuf[nBuf-5], "al", 2);
+          *pnBuf = nBuf - 5 + 2;
+        }
+      }else if( nBuf>7 && 0==memcmp("iveness", &aBuf[nBuf-7], 7) ){
+        if( fts5Porter_MGt0(aBuf, nBuf-7) ){
+          memcpy(&aBuf[nBuf-7], "ive", 3);
+          *pnBuf = nBuf - 7 + 3;
+        }
+      }else if( nBuf>7 && 0==memcmp("fulness", &aBuf[nBuf-7], 7) ){
+        if( fts5Porter_MGt0(aBuf, nBuf-7) ){
+          memcpy(&aBuf[nBuf-7], "ful", 3);
+          *pnBuf = nBuf - 7 + 3;
+        }
+      }else if( nBuf>7 && 0==memcmp("ousness", &aBuf[nBuf-7], 7) ){
+        if( fts5Porter_MGt0(aBuf, nBuf-7) ){
+          memcpy(&aBuf[nBuf-7], "ous", 3);
+          *pnBuf = nBuf - 7 + 3;
+        }
+      }
+      break;
+  
+    case 't': 
+      if( nBuf>5 && 0==memcmp("aliti", &aBuf[nBuf-5], 5) ){
+        if( fts5Porter_MGt0(aBuf, nBuf-5) ){
+          memcpy(&aBuf[nBuf-5], "al", 2);
+          *pnBuf = nBuf - 5 + 2;
+        }
+      }else if( nBuf>5 && 0==memcmp("iviti", &aBuf[nBuf-5], 5) ){
+        if( fts5Porter_MGt0(aBuf, nBuf-5) ){
+          memcpy(&aBuf[nBuf-5], "ive", 3);
+          *pnBuf = nBuf - 5 + 3;
+        }
+      }else if( nBuf>6 && 0==memcmp("biliti", &aBuf[nBuf-6], 6) ){
+        if( fts5Porter_MGt0(aBuf, nBuf-6) ){
+          memcpy(&aBuf[nBuf-6], "ble", 3);
+          *pnBuf = nBuf - 6 + 3;
+        }
+      }
+      break;
+  
+  }
+  return ret;
+}
+  
+
+static int fts5PorterStep3(char *aBuf, int *pnBuf){
+  int ret = 0;
+  int nBuf = *pnBuf;
+  switch( aBuf[nBuf-2] ){
+    
+    case 'a': 
+      if( nBuf>4 && 0==memcmp("ical", &aBuf[nBuf-4], 4) ){
+        if( fts5Porter_MGt0(aBuf, nBuf-4) ){
+          memcpy(&aBuf[nBuf-4], "ic", 2);
+          *pnBuf = nBuf - 4 + 2;
+        }
+      }
+      break;
+  
+    case 's': 
+      if( nBuf>4 && 0==memcmp("ness", &aBuf[nBuf-4], 4) ){
+        if( fts5Porter_MGt0(aBuf, nBuf-4) ){
+          *pnBuf = nBuf - 4;
+        }
+      }
+      break;
+  
+    case 't': 
+      if( nBuf>5 && 0==memcmp("icate", &aBuf[nBuf-5], 5) ){
+        if( fts5Porter_MGt0(aBuf, nBuf-5) ){
+          memcpy(&aBuf[nBuf-5], "ic", 2);
+          *pnBuf = nBuf - 5 + 2;
+        }
+      }else if( nBuf>5 && 0==memcmp("iciti", &aBuf[nBuf-5], 5) ){
+        if( fts5Porter_MGt0(aBuf, nBuf-5) ){
+          memcpy(&aBuf[nBuf-5], "ic", 2);
+          *pnBuf = nBuf - 5 + 2;
+        }
+      }
+      break;
+  
+    case 'u': 
+      if( nBuf>3 && 0==memcmp("ful", &aBuf[nBuf-3], 3) ){
+        if( fts5Porter_MGt0(aBuf, nBuf-3) ){
+          *pnBuf = nBuf - 3;
+        }
+      }
+      break;
+  
+    case 'v': 
+      if( nBuf>5 && 0==memcmp("ative", &aBuf[nBuf-5], 5) ){
+        if( fts5Porter_MGt0(aBuf, nBuf-5) ){
+          *pnBuf = nBuf - 5;
+        }
+      }
+      break;
+  
+    case 'z': 
+      if( nBuf>5 && 0==memcmp("alize", &aBuf[nBuf-5], 5) ){
+        if( fts5Porter_MGt0(aBuf, nBuf-5) ){
+          memcpy(&aBuf[nBuf-5], "al", 2);
+          *pnBuf = nBuf - 5 + 2;
+        }
+      }
+      break;
+  
+  }
+  return ret;
+}
+  
+
+static int fts5PorterStep1B(char *aBuf, int *pnBuf){
+  int ret = 0;
+  int nBuf = *pnBuf;
+  switch( aBuf[nBuf-2] ){
+    
+    case 'e': 
+      if( nBuf>3 && 0==memcmp("eed", &aBuf[nBuf-3], 3) ){
+        if( fts5Porter_MGt0(aBuf, nBuf-3) ){
+          memcpy(&aBuf[nBuf-3], "ee", 2);
+          *pnBuf = nBuf - 3 + 2;
+        }
+      }else if( nBuf>2 && 0==memcmp("ed", &aBuf[nBuf-2], 2) ){
+        if( fts5Porter_Vowel(aBuf, nBuf-2) ){
+          *pnBuf = nBuf - 2;
+          ret = 1;
+        }
+      }
+      break;
+  
+    case 'n': 
+      if( nBuf>3 && 0==memcmp("ing", &aBuf[nBuf-3], 3) ){
+        if( fts5Porter_Vowel(aBuf, nBuf-3) ){
+          *pnBuf = nBuf - 3;
+          ret = 1;
+        }
+      }
+      break;
+  
+  }
+  return ret;
+}
+  
+/* 
+** GENERATED CODE ENDS HERE (mkportersteps.tcl)
+***************************************************************************
+**************************************************************************/
+
+static void fts5PorterStep1A(char *aBuf, int *pnBuf){
+  int nBuf = *pnBuf;
+  if( aBuf[nBuf-1]=='s' ){
+    if( aBuf[nBuf-2]=='e' ){
+      if( (nBuf>4 && aBuf[nBuf-4]=='s' && aBuf[nBuf-3]=='s') 
+       || (nBuf>3 && aBuf[nBuf-3]=='i' )
+      ){
+        *pnBuf = nBuf-2;
+      }else{
+        *pnBuf = nBuf-1;
+      }
+    }
+    else if( aBuf[nBuf-2]!='s' ){
+      *pnBuf = nBuf-1;
+    }
+  }
+}
+
+static int fts5PorterCb(
+  void *pCtx, 
+  int tflags,
+  const char *pToken, 
+  int nToken, 
+  int iStart, 
+  int iEnd
+){
+  PorterContext *p = (PorterContext*)pCtx;
+
+  char *aBuf;
+  int nBuf;
+
+  if( nToken>FTS5_PORTER_MAX_TOKEN || nToken<3 ) goto pass_through;
+  aBuf = p->aBuf;
+  nBuf = nToken;
+  memcpy(aBuf, pToken, nBuf);
+
+  /* Step 1. */
+  fts5PorterStep1A(aBuf, &nBuf);
+  if( fts5PorterStep1B(aBuf, &nBuf) ){
+    if( fts5PorterStep1B2(aBuf, &nBuf)==0 ){
+      char c = aBuf[nBuf-1];
+      if( fts5PorterIsVowel(c, 0)==0 
+       && c!='l' && c!='s' && c!='z' && c==aBuf[nBuf-2] 
+      ){
+        nBuf--;
+      }else if( fts5Porter_MEq1(aBuf, nBuf) && fts5Porter_Ostar(aBuf, nBuf) ){
+        aBuf[nBuf++] = 'e';
+      }
+    }
+  }
+
+  /* Step 1C. */
+  if( aBuf[nBuf-1]=='y' && fts5Porter_Vowel(aBuf, nBuf-1) ){
+    aBuf[nBuf-1] = 'i';
+  }
+
+  /* Steps 2 through 4. */
+  fts5PorterStep2(aBuf, &nBuf);
+  fts5PorterStep3(aBuf, &nBuf);
+  fts5PorterStep4(aBuf, &nBuf);
+
+  /* Step 5a. */
+  assert( nBuf>0 );
+  if( aBuf[nBuf-1]=='e' ){
+    if( fts5Porter_MGt1(aBuf, nBuf-1) 
+     || (fts5Porter_MEq1(aBuf, nBuf-1) && !fts5Porter_Ostar(aBuf, nBuf-1))
+    ){
+      nBuf--;
+    }
+  }
+
+  /* Step 5b. */
+  if( nBuf>1 && aBuf[nBuf-1]=='l' 
+   && aBuf[nBuf-2]=='l' && fts5Porter_MGt1(aBuf, nBuf-1) 
+  ){
+    nBuf--;
+  }
+
+  return p->xToken(p->pCtx, tflags, aBuf, nBuf, iStart, iEnd);
+
+ pass_through:
+  return p->xToken(p->pCtx, tflags, pToken, nToken, iStart, iEnd);
+}
+
+/*
+** Tokenize using the porter tokenizer.
+*/
+static int fts5PorterTokenize(
+  Fts5Tokenizer *pTokenizer,
+  void *pCtx,
+  int flags,
+  const char *pText, int nText,
+  const char *pLoc, int nLoc,
+  int (*xToken)(void*, int, const char*, int nToken, int iStart, int iEnd)
+){
+  PorterTokenizer *p = (PorterTokenizer*)pTokenizer;
+  PorterContext sCtx;
+  sCtx.xToken = xToken;
+  sCtx.pCtx = pCtx;
+  sCtx.aBuf = p->aBuf;
+  return p->tokenizer_v2.xTokenize(
+      p->pTokenizer, (void*)&sCtx, flags, pText, nText, pLoc, nLoc, fts5PorterCb
+  );
+}
+
+/**************************************************************************
+** Start of trigram implementation.
+*/
+typedef struct TrigramTokenizer TrigramTokenizer;
+struct TrigramTokenizer {
+  int bFold;                      /* True to fold to lower-case */
+  int iFoldParam;                 /* Parameter to pass to Fts5UnicodeFold() */
+};
+
+/*
+** Free a trigram tokenizer.
+*/
+static void fts5TriDelete(Fts5Tokenizer *p){
+  sqlite3_free(p);
+}
+
+/*
+** Allocate a trigram tokenizer.
+*/
+static int fts5TriCreate(
+  void *pUnused,
+  const char **azArg,
+  int nArg,
+  Fts5Tokenizer **ppOut
+){
+  int rc = SQLITE_OK;
+  TrigramTokenizer *pNew = 0;
+  UNUSED_PARAM(pUnused);
+  if( nArg%2 ){
+    rc = SQLITE_ERROR;
+  }else{
+    int i;
+    pNew = (TrigramTokenizer*)sqlite3_malloc(sizeof(*pNew));
+    if( pNew==0 ){
+      rc = SQLITE_NOMEM;
+    }else{
+      pNew->bFold = 1;
+      pNew->iFoldParam = 0;
+  
+      for(i=0; rc==SQLITE_OK && i<nArg; i+=2){
+        const char *zArg = azArg[i+1];
+        if( 0==sqlite3_stricmp(azArg[i], "case_sensitive") ){
+          if( (zArg[0]!='0' && zArg[0]!='1') || zArg[1] ){
+            rc = SQLITE_ERROR;
+          }else{
+            pNew->bFold = (zArg[0]=='0');
+          }
+        }else if( 0==sqlite3_stricmp(azArg[i], "remove_diacritics") ){
+          if( (zArg[0]!='0' && zArg[0]!='1' && zArg[0]!='2') || zArg[1] ){
+            rc = SQLITE_ERROR;
+          }else{
+            pNew->iFoldParam = (zArg[0]!='0') ? 2 : 0;
+          }
+        }else{
+          rc = SQLITE_ERROR;
+        }
+      }
+  
+      if( pNew->iFoldParam!=0 && pNew->bFold==0 ){
+        rc = SQLITE_ERROR;
+      }
+  
+      if( rc!=SQLITE_OK ){
+        fts5TriDelete((Fts5Tokenizer*)pNew);
+        pNew = 0;
+      }
+    }
+  }
+  *ppOut = (Fts5Tokenizer*)pNew;
+  return rc;
+}
+
+/*
+** Trigram tokenizer tokenize routine.
+*/
+static int fts5TriTokenize(
+  Fts5Tokenizer *pTok,
+  void *pCtx,
+  int unusedFlags,
+  const char *pText, int nText,
+  int (*xToken)(void*, int, const char*, int, int, int)
+){
+  TrigramTokenizer *p = (TrigramTokenizer*)pTok;
+  int rc = SQLITE_OK;
+  char aBuf[32];
+  char *zOut = aBuf;
+  int ii;
+  const unsigned char *zIn = (const unsigned char*)pText;
+  const unsigned char *zEof = (zIn ? &zIn[nText] : 0);
+  u32 iCode = 0;
+  int aStart[3];                  /* Input offset of each character in aBuf[] */
+
+  UNUSED_PARAM(unusedFlags);
+
+  /* Populate aBuf[] with the characters for the first trigram. */
+  for(ii=0; ii<3; ii++){
+    do {
+      aStart[ii] = zIn - (const unsigned char*)pText;
+      if( zIn>=zEof ) return SQLITE_OK;
+      READ_UTF8(zIn, zEof, iCode);
+      if( p->bFold ) iCode = sqlite3Fts5UnicodeFold(iCode, p->iFoldParam);
+    }while( iCode==0 );
+    WRITE_UTF8(zOut, iCode);
+  }
+
+  /* At the start of each iteration of this loop:
+  **
+  **  aBuf:      Contains 3 characters. The 3 characters of the next trigram.
+  **  zOut:      Points to the byte following the last character in aBuf.
+  **  aStart[3]: Contains the byte offset in the input text corresponding
+  **             to the start of each of the three characters in the buffer.
+  */
+  assert( zIn<=zEof );
+  while( 1 ){
+    int iNext;                    /* Start of character following current tri */
+    const char *z1;
+
+    /* Read characters from the input up until the first non-diacritic */
+    do {
+      iNext = zIn - (const unsigned char*)pText;
+      if( zIn>=zEof ){
+        iCode = 0;
+        break;
+      }
+      READ_UTF8(zIn, zEof, iCode);
+      if( p->bFold ) iCode = sqlite3Fts5UnicodeFold(iCode, p->iFoldParam);
+    }while( iCode==0 );
+
+    /* Pass the current trigram back to fts5 */
+    rc = xToken(pCtx, 0, aBuf, zOut-aBuf, aStart[0], iNext);
+    if( iCode==0 || rc!=SQLITE_OK ) break;
+
+    /* Remove the first character from buffer aBuf[]. Append the character
+    ** with codepoint iCode.  */
+    z1 = aBuf;
+    FTS5_SKIP_UTF8(z1);
+    memmove(aBuf, z1, zOut - z1);
+    zOut -= (z1 - aBuf);
+    WRITE_UTF8(zOut, iCode);
+
+    /* Update the aStart[] array */
+    aStart[0] = aStart[1];
+    aStart[1] = aStart[2];
+    aStart[2] = iNext;
+  }
+
+  return rc;
+}
+
+/*
+** Argument xCreate is a pointer to a constructor function for a tokenizer.
+** pTok is a tokenizer previously created using the same method. This function
+** returns one of FTS5_PATTERN_NONE, FTS5_PATTERN_LIKE or FTS5_PATTERN_GLOB
+** indicating the style of pattern matching that the tokenizer can support.
+** In practice, this is:
+**
+**     "trigram" tokenizer, case_sensitive=1 - FTS5_PATTERN_GLOB
+**     "trigram" tokenizer, case_sensitive=0 (the default) - FTS5_PATTERN_LIKE
+**     all other tokenizers - FTS5_PATTERN_NONE
+*/
+int sqlite3Fts5TokenizerPattern(
+    int (*xCreate)(void*, const char**, int, Fts5Tokenizer**),
+    Fts5Tokenizer *pTok
+){
+  if( xCreate==fts5TriCreate ){
+    TrigramTokenizer *p = (TrigramTokenizer*)pTok;
+    if( p->iFoldParam==0 ){
+      return p->bFold ? FTS5_PATTERN_LIKE : FTS5_PATTERN_GLOB;
+    }
+  }
+  return FTS5_PATTERN_NONE;
+}
+
+/*
+** Return true if the tokenizer described by p->azArg[] is the trigram
+** tokenizer. This tokenizer needs to be loaded before xBestIndex is
+** called for the first time in order to correctly handle LIKE/GLOB.
+*/
+int sqlite3Fts5TokenizerPreload(Fts5TokenizerConfig *p){
+  return (p->nArg>=1 && 0==sqlite3_stricmp(p->azArg[0], "trigram"));
+}
+
+
+/*
+** Register all built-in tokenizers with FTS5.
+*/
+int sqlite3Fts5TokenizerInit(fts5_api *pApi){
+  struct BuiltinTokenizer {
+    const char *zName;
+    fts5_tokenizer x;
+  } aBuiltin[] = {
+    { "unicode61", {fts5UnicodeCreate, fts5UnicodeDelete, fts5UnicodeTokenize}},
+    { "ascii",     {fts5AsciiCreate, fts5AsciiDelete, fts5AsciiTokenize }},
+    { "trigram",   {fts5TriCreate, fts5TriDelete, fts5TriTokenize}},
+  };
+  
+  int rc = SQLITE_OK;             /* Return code */
+  int i;                          /* To iterate through builtin functions */
+
+  for(i=0; rc==SQLITE_OK && i<ArraySize(aBuiltin); i++){
+    rc = pApi->xCreateTokenizer(pApi,
+        aBuiltin[i].zName,
+        (void*)pApi,
+        &aBuiltin[i].x,
+        0
+    );
+  }
+  if( rc==SQLITE_OK ){
+    fts5_tokenizer_v2 sPorter = {
+      2,
+      fts5PorterCreate,
+      fts5PorterDelete,
+      fts5PorterTokenize
+    };
+    rc = pApi->xCreateTokenizer_v2(pApi,
+        "porter",
+        (void*)pApi,
+        &sPorter,
+        0
+    );
+  }
+  return rc;
+}
diff --git a/ext/fts5/fts5_unicode2.c b/ext/fts5/fts5_unicode2.c
new file mode 100644
index 0000000000000000000000000000000000000000..cc164a456916254cb0208a123561bb8d49ef9eec
--- /dev/null
+++ b/ext/fts5/fts5_unicode2.c
@@ -0,0 +1,781 @@
+/*
+** 2012-05-25
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+*/
+
+/*
+** DO NOT EDIT THIS MACHINE GENERATED FILE.
+*/
+
+
+#include <assert.h>
+
+
+
+/*
+** If the argument is a codepoint corresponding to a lowercase letter
+** in the ASCII range with a diacritic added, return the codepoint
+** of the ASCII letter only. For example, if passed 235 - "LATIN
+** SMALL LETTER E WITH DIAERESIS" - return 65 ("LATIN SMALL LETTER
+** E"). The resuls of passing a codepoint that corresponds to an
+** uppercase letter are undefined.
+*/
+static int fts5_remove_diacritic(int c, int bComplex){
+  unsigned short aDia[] = {
+        0,  1797,  1848,  1859,  1891,  1928,  1940,  1995, 
+     2024,  2040,  2060,  2110,  2168,  2206,  2264,  2286, 
+     2344,  2383,  2472,  2488,  2516,  2596,  2668,  2732, 
+     2782,  2842,  2894,  2954,  2984,  3000,  3028,  3336, 
+     3456,  3696,  3712,  3728,  3744,  3766,  3832,  3896, 
+     3912,  3928,  3944,  3968,  4008,  4040,  4056,  4106, 
+     4138,  4170,  4202,  4234,  4266,  4296,  4312,  4344, 
+     4408,  4424,  4442,  4472,  4488,  4504,  6148,  6198, 
+     6264,  6280,  6360,  6429,  6505,  6529, 61448, 61468, 
+    61512, 61534, 61592, 61610, 61642, 61672, 61688, 61704, 
+    61726, 61784, 61800, 61816, 61836, 61880, 61896, 61914, 
+    61948, 61998, 62062, 62122, 62154, 62184, 62200, 62218, 
+    62252, 62302, 62364, 62410, 62442, 62478, 62536, 62554, 
+    62584, 62604, 62640, 62648, 62656, 62664, 62730, 62766, 
+    62830, 62890, 62924, 62974, 63032, 63050, 63082, 63118, 
+    63182, 63242, 63274, 63310, 63368, 63390, 
+  };
+#define HIBIT ((unsigned char)0x80)
+  unsigned char aChar[] = {
+    '\0',      'a',       'c',       'e',       'i',       'n',       
+    'o',       'u',       'y',       'y',       'a',       'c',       
+    'd',       'e',       'e',       'g',       'h',       'i',       
+    'j',       'k',       'l',       'n',       'o',       'r',       
+    's',       't',       'u',       'u',       'w',       'y',       
+    'z',       'o',       'u',       'a',       'i',       'o',       
+    'u',       'u'|HIBIT, 'a'|HIBIT, 'g',       'k',       'o',       
+    'o'|HIBIT, 'j',       'g',       'n',       'a'|HIBIT, 'a',       
+    'e',       'i',       'o',       'r',       'u',       's',       
+    't',       'h',       'a',       'e',       'o'|HIBIT, 'o',       
+    'o'|HIBIT, 'y',       '\0',      '\0',      '\0',      '\0',      
+    '\0',      '\0',      '\0',      '\0',      'a',       'b',       
+    'c'|HIBIT, 'd',       'd',       'e'|HIBIT, 'e',       'e'|HIBIT, 
+    'f',       'g',       'h',       'h',       'i',       'i'|HIBIT, 
+    'k',       'l',       'l'|HIBIT, 'l',       'm',       'n',       
+    'o'|HIBIT, 'p',       'r',       'r'|HIBIT, 'r',       's',       
+    's'|HIBIT, 't',       'u',       'u'|HIBIT, 'v',       'w',       
+    'w',       'x',       'y',       'z',       'h',       't',       
+    'w',       'y',       'a',       'a'|HIBIT, 'a'|HIBIT, 'a'|HIBIT, 
+    'e',       'e'|HIBIT, 'e'|HIBIT, 'i',       'o',       'o'|HIBIT, 
+    'o'|HIBIT, 'o'|HIBIT, 'u',       'u'|HIBIT, 'u'|HIBIT, 'y',       
+  };
+
+  unsigned int key = (((unsigned int)c)<<3) | 0x00000007;
+  int iRes = 0;
+  int iHi = sizeof(aDia)/sizeof(aDia[0]) - 1;
+  int iLo = 0;
+  while( iHi>=iLo ){
+    int iTest = (iHi + iLo) / 2;
+    if( key >= aDia[iTest] ){
+      iRes = iTest;
+      iLo = iTest+1;
+    }else{
+      iHi = iTest-1;
+    }
+  }
+  assert( key>=aDia[iRes] );
+  if( bComplex==0 && (aChar[iRes] & 0x80) ) return c;
+  return (c > (aDia[iRes]>>3) + (aDia[iRes]&0x07)) ? c : ((int)aChar[iRes] & 0x7F);
+}
+
+
+/*
+** Return true if the argument interpreted as a unicode codepoint
+** is a diacritical modifier character.
+*/
+int sqlite3Fts5UnicodeIsdiacritic(int c){
+  unsigned int mask0 = 0x08029FDF;
+  unsigned int mask1 = 0x000361F8;
+  if( c<768 || c>817 ) return 0;
+  return (c < 768+32) ?
+      (mask0 & ((unsigned int)1 << (c-768))) :
+      (mask1 & ((unsigned int)1 << (c-768-32)));
+}
+
+
+/*
+** Interpret the argument as a unicode codepoint. If the codepoint
+** is an upper case character that has a lower case equivalent,
+** return the codepoint corresponding to the lower case version.
+** Otherwise, return a copy of the argument.
+**
+** The results are undefined if the value passed to this function
+** is less than zero.
+*/
+int sqlite3Fts5UnicodeFold(int c, int eRemoveDiacritic){
+  /* Each entry in the following array defines a rule for folding a range
+  ** of codepoints to lower case. The rule applies to a range of nRange
+  ** codepoints starting at codepoint iCode.
+  **
+  ** If the least significant bit in flags is clear, then the rule applies
+  ** to all nRange codepoints (i.e. all nRange codepoints are upper case and
+  ** need to be folded). Or, if it is set, then the rule only applies to
+  ** every second codepoint in the range, starting with codepoint C.
+  **
+  ** The 7 most significant bits in flags are an index into the aiOff[]
+  ** array. If a specific codepoint C does require folding, then its lower
+  ** case equivalent is ((C + aiOff[flags>>1]) & 0xFFFF).
+  **
+  ** The contents of this array are generated by parsing the CaseFolding.txt
+  ** file distributed as part of the "Unicode Character Database". See
+  ** http://www.unicode.org for details.
+  */
+  static const struct TableEntry {
+    unsigned short iCode;
+    unsigned char flags;
+    unsigned char nRange;
+  } aEntry[] = {
+    {65, 14, 26},          {181, 64, 1},          {192, 14, 23},
+    {216, 14, 7},          {256, 1, 48},          {306, 1, 6},
+    {313, 1, 16},          {330, 1, 46},          {376, 116, 1},
+    {377, 1, 6},           {383, 104, 1},         {385, 50, 1},
+    {386, 1, 4},           {390, 44, 1},          {391, 0, 1},
+    {393, 42, 2},          {395, 0, 1},           {398, 32, 1},
+    {399, 38, 1},          {400, 40, 1},          {401, 0, 1},
+    {403, 42, 1},          {404, 46, 1},          {406, 52, 1},
+    {407, 48, 1},          {408, 0, 1},           {412, 52, 1},
+    {413, 54, 1},          {415, 56, 1},          {416, 1, 6},
+    {422, 60, 1},          {423, 0, 1},           {425, 60, 1},
+    {428, 0, 1},           {430, 60, 1},          {431, 0, 1},
+    {433, 58, 2},          {435, 1, 4},           {439, 62, 1},
+    {440, 0, 1},           {444, 0, 1},           {452, 2, 1},
+    {453, 0, 1},           {455, 2, 1},           {456, 0, 1},
+    {458, 2, 1},           {459, 1, 18},          {478, 1, 18},
+    {497, 2, 1},           {498, 1, 4},           {502, 122, 1},
+    {503, 134, 1},         {504, 1, 40},          {544, 110, 1},
+    {546, 1, 18},          {570, 70, 1},          {571, 0, 1},
+    {573, 108, 1},         {574, 68, 1},          {577, 0, 1},
+    {579, 106, 1},         {580, 28, 1},          {581, 30, 1},
+    {582, 1, 10},          {837, 36, 1},          {880, 1, 4},
+    {886, 0, 1},           {902, 18, 1},          {904, 16, 3},
+    {908, 26, 1},          {910, 24, 2},          {913, 14, 17},
+    {931, 14, 9},          {962, 0, 1},           {975, 4, 1},
+    {976, 140, 1},         {977, 142, 1},         {981, 146, 1},
+    {982, 144, 1},         {984, 1, 24},          {1008, 136, 1},
+    {1009, 138, 1},        {1012, 130, 1},        {1013, 128, 1},
+    {1015, 0, 1},          {1017, 152, 1},        {1018, 0, 1},
+    {1021, 110, 3},        {1024, 34, 16},        {1040, 14, 32},
+    {1120, 1, 34},         {1162, 1, 54},         {1216, 6, 1},
+    {1217, 1, 14},         {1232, 1, 88},         {1329, 22, 38},
+    {4256, 66, 38},        {4295, 66, 1},         {4301, 66, 1},
+    {7680, 1, 150},        {7835, 132, 1},        {7838, 96, 1},
+    {7840, 1, 96},         {7944, 150, 8},        {7960, 150, 6},
+    {7976, 150, 8},        {7992, 150, 8},        {8008, 150, 6},
+    {8025, 151, 8},        {8040, 150, 8},        {8072, 150, 8},
+    {8088, 150, 8},        {8104, 150, 8},        {8120, 150, 2},
+    {8122, 126, 2},        {8124, 148, 1},        {8126, 100, 1},
+    {8136, 124, 4},        {8140, 148, 1},        {8152, 150, 2},
+    {8154, 120, 2},        {8168, 150, 2},        {8170, 118, 2},
+    {8172, 152, 1},        {8184, 112, 2},        {8186, 114, 2},
+    {8188, 148, 1},        {8486, 98, 1},         {8490, 92, 1},
+    {8491, 94, 1},         {8498, 12, 1},         {8544, 8, 16},
+    {8579, 0, 1},          {9398, 10, 26},        {11264, 22, 47},
+    {11360, 0, 1},         {11362, 88, 1},        {11363, 102, 1},
+    {11364, 90, 1},        {11367, 1, 6},         {11373, 84, 1},
+    {11374, 86, 1},        {11375, 80, 1},        {11376, 82, 1},
+    {11378, 0, 1},         {11381, 0, 1},         {11390, 78, 2},
+    {11392, 1, 100},       {11499, 1, 4},         {11506, 0, 1},
+    {42560, 1, 46},        {42624, 1, 24},        {42786, 1, 14},
+    {42802, 1, 62},        {42873, 1, 4},         {42877, 76, 1},
+    {42878, 1, 10},        {42891, 0, 1},         {42893, 74, 1},
+    {42896, 1, 4},         {42912, 1, 10},        {42922, 72, 1},
+    {65313, 14, 26},       
+  };
+  static const unsigned short aiOff[] = {
+   1,     2,     8,     15,    16,    26,    28,    32,    
+   37,    38,    40,    48,    63,    64,    69,    71,    
+   79,    80,    116,   202,   203,   205,   206,   207,   
+   209,   210,   211,   213,   214,   217,   218,   219,   
+   775,   7264,  10792, 10795, 23228, 23256, 30204, 54721, 
+   54753, 54754, 54756, 54787, 54793, 54809, 57153, 57274, 
+   57921, 58019, 58363, 61722, 65268, 65341, 65373, 65406, 
+   65408, 65410, 65415, 65424, 65436, 65439, 65450, 65462, 
+   65472, 65476, 65478, 65480, 65482, 65488, 65506, 65511, 
+   65514, 65521, 65527, 65528, 65529, 
+  };
+
+  int ret = c;
+
+  assert( sizeof(unsigned short)==2 && sizeof(unsigned char)==1 );
+
+  if( c<128 ){
+    if( c>='A' && c<='Z' ) ret = c + ('a' - 'A');
+  }else if( c<65536 ){
+    const struct TableEntry *p;
+    int iHi = sizeof(aEntry)/sizeof(aEntry[0]) - 1;
+    int iLo = 0;
+    int iRes = -1;
+
+    assert( c>aEntry[0].iCode );
+    while( iHi>=iLo ){
+      int iTest = (iHi + iLo) / 2;
+      int cmp = (c - aEntry[iTest].iCode);
+      if( cmp>=0 ){
+        iRes = iTest;
+        iLo = iTest+1;
+      }else{
+        iHi = iTest-1;
+      }
+    }
+
+    assert( iRes>=0 && c>=aEntry[iRes].iCode );
+    p = &aEntry[iRes];
+    if( c<(p->iCode + p->nRange) && 0==(0x01 & p->flags & (p->iCode ^ c)) ){
+      ret = (c + (aiOff[p->flags>>1])) & 0x0000FFFF;
+      assert( ret>0 );
+    }
+
+    if( eRemoveDiacritic ){
+      ret = fts5_remove_diacritic(ret, eRemoveDiacritic==2);
+    }
+  }
+  
+  else if( c>=66560 && c<66600 ){
+    ret = c + 40;
+  }
+
+  return ret;
+}
+
+
+int sqlite3Fts5UnicodeCatParse(const char *zCat, u8 *aArray){ 
+  aArray[0] = 1;
+  switch( zCat[0] ){
+    case 'C':
+          switch( zCat[1] ){
+            case 'c': aArray[1] = 1; break;
+            case 'f': aArray[2] = 1; break;
+            case 'n': aArray[3] = 1; break;
+            case 's': aArray[4] = 1; break;
+            case 'o': aArray[31] = 1; break;
+            case '*': 
+              aArray[1] = 1;
+              aArray[2] = 1;
+              aArray[3] = 1;
+              aArray[4] = 1;
+              aArray[31] = 1;
+              break;
+            default: return 1;          }
+          break;
+
+    case 'L':
+          switch( zCat[1] ){
+            case 'l': aArray[5] = 1; break;
+            case 'm': aArray[6] = 1; break;
+            case 'o': aArray[7] = 1; break;
+            case 't': aArray[8] = 1; break;
+            case 'u': aArray[9] = 1; break;
+            case 'C': aArray[30] = 1; break;
+            case '*': 
+              aArray[5] = 1;
+              aArray[6] = 1;
+              aArray[7] = 1;
+              aArray[8] = 1;
+              aArray[9] = 1;
+              aArray[30] = 1;
+              break;
+            default: return 1;          }
+          break;
+
+    case 'M':
+          switch( zCat[1] ){
+            case 'c': aArray[10] = 1; break;
+            case 'e': aArray[11] = 1; break;
+            case 'n': aArray[12] = 1; break;
+            case '*': 
+              aArray[10] = 1;
+              aArray[11] = 1;
+              aArray[12] = 1;
+              break;
+            default: return 1;          }
+          break;
+
+    case 'N':
+          switch( zCat[1] ){
+            case 'd': aArray[13] = 1; break;
+            case 'l': aArray[14] = 1; break;
+            case 'o': aArray[15] = 1; break;
+            case '*': 
+              aArray[13] = 1;
+              aArray[14] = 1;
+              aArray[15] = 1;
+              break;
+            default: return 1;          }
+          break;
+
+    case 'P':
+          switch( zCat[1] ){
+            case 'c': aArray[16] = 1; break;
+            case 'd': aArray[17] = 1; break;
+            case 'e': aArray[18] = 1; break;
+            case 'f': aArray[19] = 1; break;
+            case 'i': aArray[20] = 1; break;
+            case 'o': aArray[21] = 1; break;
+            case 's': aArray[22] = 1; break;
+            case '*': 
+              aArray[16] = 1;
+              aArray[17] = 1;
+              aArray[18] = 1;
+              aArray[19] = 1;
+              aArray[20] = 1;
+              aArray[21] = 1;
+              aArray[22] = 1;
+              break;
+            default: return 1;          }
+          break;
+
+    case 'S':
+          switch( zCat[1] ){
+            case 'c': aArray[23] = 1; break;
+            case 'k': aArray[24] = 1; break;
+            case 'm': aArray[25] = 1; break;
+            case 'o': aArray[26] = 1; break;
+            case '*': 
+              aArray[23] = 1;
+              aArray[24] = 1;
+              aArray[25] = 1;
+              aArray[26] = 1;
+              break;
+            default: return 1;          }
+          break;
+
+    case 'Z':
+          switch( zCat[1] ){
+            case 'l': aArray[27] = 1; break;
+            case 'p': aArray[28] = 1; break;
+            case 's': aArray[29] = 1; break;
+            case '*': 
+              aArray[27] = 1;
+              aArray[28] = 1;
+              aArray[29] = 1;
+              break;
+            default: return 1;          }
+          break;
+
+
+    default:
+      return 1;
+  }
+  return 0;
+}
+
+static u16 aFts5UnicodeBlock[] = {
+    0,     1471,  1753,  1760,  1760,  1760,  1760,  1760,  1760,  1760,  
+    1760,  1760,  1760,  1760,  1760,  1763,  1765,  
+  };
+static u16 aFts5UnicodeMap[] = {
+    0,     32,    33,    36,    37,    40,    41,    42,    43,    44,    
+    45,    46,    48,    58,    60,    63,    65,    91,    92,    93,    
+    94,    95,    96,    97,    123,   124,   125,   126,   127,   160,   
+    161,   162,   166,   167,   168,   169,   170,   171,   172,   173,   
+    174,   175,   176,   177,   178,   180,   181,   182,   184,   185,   
+    186,   187,   188,   191,   192,   215,   216,   223,   247,   248,   
+    256,   312,   313,   329,   330,   377,   383,   385,   387,   388,   
+    391,   394,   396,   398,   402,   403,   405,   406,   409,   412,   
+    414,   415,   417,   418,   423,   427,   428,   431,   434,   436,   
+    437,   440,   442,   443,   444,   446,   448,   452,   453,   454,   
+    455,   456,   457,   458,   459,   460,   461,   477,   478,   496,   
+    497,   498,   499,   500,   503,   505,   506,   564,   570,   572,   
+    573,   575,   577,   580,   583,   584,   592,   660,   661,   688,   
+    706,   710,   722,   736,   741,   748,   749,   750,   751,   768,   
+    880,   884,   885,   886,   890,   891,   894,   900,   902,   903,   
+    904,   908,   910,   912,   913,   931,   940,   975,   977,   978,   
+    981,   984,   1008,  1012,  1014,  1015,  1018,  1020,  1021,  1072,  
+    1120,  1154,  1155,  1160,  1162,  1217,  1231,  1232,  1329,  1369,  
+    1370,  1377,  1417,  1418,  1423,  1425,  1470,  1471,  1472,  1473,  
+    1475,  1476,  1478,  1479,  1488,  1520,  1523,  1536,  1542,  1545,  
+    1547,  1548,  1550,  1552,  1563,  1566,  1568,  1600,  1601,  1611,  
+    1632,  1642,  1646,  1648,  1649,  1748,  1749,  1750,  1757,  1758,  
+    1759,  1765,  1767,  1769,  1770,  1774,  1776,  1786,  1789,  1791,  
+    1792,  1807,  1808,  1809,  1810,  1840,  1869,  1958,  1969,  1984,  
+    1994,  2027,  2036,  2038,  2039,  2042,  2048,  2070,  2074,  2075,  
+    2084,  2085,  2088,  2089,  2096,  2112,  2137,  2142,  2208,  2210,  
+    2276,  2304,  2307,  2308,  2362,  2363,  2364,  2365,  2366,  2369,  
+    2377,  2381,  2382,  2384,  2385,  2392,  2402,  2404,  2406,  2416,  
+    2417,  2418,  2425,  2433,  2434,  2437,  2447,  2451,  2474,  2482,  
+    2486,  2492,  2493,  2494,  2497,  2503,  2507,  2509,  2510,  2519,  
+    2524,  2527,  2530,  2534,  2544,  2546,  2548,  2554,  2555,  2561,  
+    2563,  2565,  2575,  2579,  2602,  2610,  2613,  2616,  2620,  2622,  
+    2625,  2631,  2635,  2641,  2649,  2654,  2662,  2672,  2674,  2677,  
+    2689,  2691,  2693,  2703,  2707,  2730,  2738,  2741,  2748,  2749,  
+    2750,  2753,  2759,  2761,  2763,  2765,  2768,  2784,  2786,  2790,  
+    2800,  2801,  2817,  2818,  2821,  2831,  2835,  2858,  2866,  2869,  
+    2876,  2877,  2878,  2879,  2880,  2881,  2887,  2891,  2893,  2902,  
+    2903,  2908,  2911,  2914,  2918,  2928,  2929,  2930,  2946,  2947,  
+    2949,  2958,  2962,  2969,  2972,  2974,  2979,  2984,  2990,  3006,  
+    3008,  3009,  3014,  3018,  3021,  3024,  3031,  3046,  3056,  3059,  
+    3065,  3066,  3073,  3077,  3086,  3090,  3114,  3125,  3133,  3134,  
+    3137,  3142,  3146,  3157,  3160,  3168,  3170,  3174,  3192,  3199,  
+    3202,  3205,  3214,  3218,  3242,  3253,  3260,  3261,  3262,  3263,  
+    3264,  3270,  3271,  3274,  3276,  3285,  3294,  3296,  3298,  3302,  
+    3313,  3330,  3333,  3342,  3346,  3389,  3390,  3393,  3398,  3402,  
+    3405,  3406,  3415,  3424,  3426,  3430,  3440,  3449,  3450,  3458,  
+    3461,  3482,  3507,  3517,  3520,  3530,  3535,  3538,  3542,  3544,  
+    3570,  3572,  3585,  3633,  3634,  3636,  3647,  3648,  3654,  3655,  
+    3663,  3664,  3674,  3713,  3716,  3719,  3722,  3725,  3732,  3737,  
+    3745,  3749,  3751,  3754,  3757,  3761,  3762,  3764,  3771,  3773,  
+    3776,  3782,  3784,  3792,  3804,  3840,  3841,  3844,  3859,  3860,  
+    3861,  3864,  3866,  3872,  3882,  3892,  3893,  3894,  3895,  3896,  
+    3897,  3898,  3899,  3900,  3901,  3902,  3904,  3913,  3953,  3967,  
+    3968,  3973,  3974,  3976,  3981,  3993,  4030,  4038,  4039,  4046,  
+    4048,  4053,  4057,  4096,  4139,  4141,  4145,  4146,  4152,  4153,  
+    4155,  4157,  4159,  4160,  4170,  4176,  4182,  4184,  4186,  4190,  
+    4193,  4194,  4197,  4199,  4206,  4209,  4213,  4226,  4227,  4229,  
+    4231,  4237,  4238,  4239,  4240,  4250,  4253,  4254,  4256,  4295,  
+    4301,  4304,  4347,  4348,  4349,  4682,  4688,  4696,  4698,  4704,  
+    4746,  4752,  4786,  4792,  4800,  4802,  4808,  4824,  4882,  4888,  
+    4957,  4960,  4969,  4992,  5008,  5024,  5120,  5121,  5741,  5743,  
+    5760,  5761,  5787,  5788,  5792,  5867,  5870,  5888,  5902,  5906,  
+    5920,  5938,  5941,  5952,  5970,  5984,  5998,  6002,  6016,  6068,  
+    6070,  6071,  6078,  6086,  6087,  6089,  6100,  6103,  6104,  6107,  
+    6108,  6109,  6112,  6128,  6144,  6150,  6151,  6155,  6158,  6160,  
+    6176,  6211,  6212,  6272,  6313,  6314,  6320,  6400,  6432,  6435,  
+    6439,  6441,  6448,  6450,  6451,  6457,  6464,  6468,  6470,  6480,  
+    6512,  6528,  6576,  6593,  6600,  6608,  6618,  6622,  6656,  6679,  
+    6681,  6686,  6688,  6741,  6742,  6743,  6744,  6752,  6753,  6754,  
+    6755,  6757,  6765,  6771,  6783,  6784,  6800,  6816,  6823,  6824,  
+    6912,  6916,  6917,  6964,  6965,  6966,  6971,  6972,  6973,  6978,  
+    6979,  6981,  6992,  7002,  7009,  7019,  7028,  7040,  7042,  7043,  
+    7073,  7074,  7078,  7080,  7082,  7083,  7084,  7086,  7088,  7098,  
+    7142,  7143,  7144,  7146,  7149,  7150,  7151,  7154,  7164,  7168,  
+    7204,  7212,  7220,  7222,  7227,  7232,  7245,  7248,  7258,  7288,  
+    7294,  7360,  7376,  7379,  7380,  7393,  7394,  7401,  7405,  7406,  
+    7410,  7412,  7413,  7424,  7468,  7531,  7544,  7545,  7579,  7616,  
+    7676,  7680,  7830,  7838,  7936,  7944,  7952,  7960,  7968,  7976,  
+    7984,  7992,  8000,  8008,  8016,  8025,  8027,  8029,  8031,  8033,  
+    8040,  8048,  8064,  8072,  8080,  8088,  8096,  8104,  8112,  8118,  
+    8120,  8124,  8125,  8126,  8127,  8130,  8134,  8136,  8140,  8141,  
+    8144,  8150,  8152,  8157,  8160,  8168,  8173,  8178,  8182,  8184,  
+    8188,  8189,  8192,  8203,  8208,  8214,  8216,  8217,  8218,  8219,  
+    8221,  8222,  8223,  8224,  8232,  8233,  8234,  8239,  8240,  8249,  
+    8250,  8251,  8255,  8257,  8260,  8261,  8262,  8263,  8274,  8275,  
+    8276,  8277,  8287,  8288,  8298,  8304,  8305,  8308,  8314,  8317,  
+    8318,  8319,  8320,  8330,  8333,  8334,  8336,  8352,  8400,  8413,  
+    8417,  8418,  8421,  8448,  8450,  8451,  8455,  8456,  8458,  8459,  
+    8462,  8464,  8467,  8468,  8469,  8470,  8472,  8473,  8478,  8484,  
+    8485,  8486,  8487,  8488,  8489,  8490,  8494,  8495,  8496,  8500,  
+    8501,  8505,  8506,  8508,  8510,  8512,  8517,  8519,  8522,  8523,  
+    8524,  8526,  8527,  8528,  8544,  8579,  8581,  8585,  8592,  8597,  
+    8602,  8604,  8608,  8609,  8611,  8612,  8614,  8615,  8622,  8623,  
+    8654,  8656,  8658,  8659,  8660,  8661,  8692,  8960,  8968,  8972,  
+    8992,  8994,  9001,  9002,  9003,  9084,  9085,  9115,  9140,  9180,  
+    9186,  9216,  9280,  9312,  9372,  9450,  9472,  9655,  9656,  9665,  
+    9666,  9720,  9728,  9839,  9840,  9985,  10088, 10089, 10090, 10091, 
+    10092, 10093, 10094, 10095, 10096, 10097, 10098, 10099, 10100, 10101, 
+    10102, 10132, 10176, 10181, 10182, 10183, 10214, 10215, 10216, 10217, 
+    10218, 10219, 10220, 10221, 10222, 10223, 10224, 10240, 10496, 10627, 
+    10628, 10629, 10630, 10631, 10632, 10633, 10634, 10635, 10636, 10637, 
+    10638, 10639, 10640, 10641, 10642, 10643, 10644, 10645, 10646, 10647, 
+    10648, 10649, 10712, 10713, 10714, 10715, 10716, 10748, 10749, 10750, 
+    11008, 11056, 11077, 11079, 11088, 11264, 11312, 11360, 11363, 11365, 
+    11367, 11374, 11377, 11378, 11380, 11381, 11383, 11388, 11390, 11393, 
+    11394, 11492, 11493, 11499, 11503, 11506, 11513, 11517, 11518, 11520, 
+    11559, 11565, 11568, 11631, 11632, 11647, 11648, 11680, 11688, 11696, 
+    11704, 11712, 11720, 11728, 11736, 11744, 11776, 11778, 11779, 11780, 
+    11781, 11782, 11785, 11786, 11787, 11788, 11789, 11790, 11799, 11800, 
+    11802, 11803, 11804, 11805, 11806, 11808, 11809, 11810, 11811, 11812, 
+    11813, 11814, 11815, 11816, 11817, 11818, 11823, 11824, 11834, 11904, 
+    11931, 12032, 12272, 12288, 12289, 12292, 12293, 12294, 12295, 12296, 
+    12297, 12298, 12299, 12300, 12301, 12302, 12303, 12304, 12305, 12306, 
+    12308, 12309, 12310, 12311, 12312, 12313, 12314, 12315, 12316, 12317, 
+    12318, 12320, 12321, 12330, 12334, 12336, 12337, 12342, 12344, 12347, 
+    12348, 12349, 12350, 12353, 12441, 12443, 12445, 12447, 12448, 12449, 
+    12539, 12540, 12543, 12549, 12593, 12688, 12690, 12694, 12704, 12736, 
+    12784, 12800, 12832, 12842, 12872, 12880, 12881, 12896, 12928, 12938, 
+    12977, 12992, 13056, 13312, 19893, 19904, 19968, 40908, 40960, 40981, 
+    40982, 42128, 42192, 42232, 42238, 42240, 42508, 42509, 42512, 42528, 
+    42538, 42560, 42606, 42607, 42608, 42611, 42612, 42622, 42623, 42624, 
+    42655, 42656, 42726, 42736, 42738, 42752, 42775, 42784, 42786, 42800, 
+    42802, 42864, 42865, 42873, 42878, 42888, 42889, 42891, 42896, 42912, 
+    43000, 43002, 43003, 43010, 43011, 43014, 43015, 43019, 43020, 43043, 
+    43045, 43047, 43048, 43056, 43062, 43064, 43065, 43072, 43124, 43136, 
+    43138, 43188, 43204, 43214, 43216, 43232, 43250, 43256, 43259, 43264, 
+    43274, 43302, 43310, 43312, 43335, 43346, 43359, 43360, 43392, 43395, 
+    43396, 43443, 43444, 43446, 43450, 43452, 43453, 43457, 43471, 43472, 
+    43486, 43520, 43561, 43567, 43569, 43571, 43573, 43584, 43587, 43588, 
+    43596, 43597, 43600, 43612, 43616, 43632, 43633, 43639, 43642, 43643, 
+    43648, 43696, 43697, 43698, 43701, 43703, 43705, 43710, 43712, 43713, 
+    43714, 43739, 43741, 43742, 43744, 43755, 43756, 43758, 43760, 43762, 
+    43763, 43765, 43766, 43777, 43785, 43793, 43808, 43816, 43968, 44003, 
+    44005, 44006, 44008, 44009, 44011, 44012, 44013, 44016, 44032, 55203, 
+    55216, 55243, 55296, 56191, 56319, 57343, 57344, 63743, 63744, 64112, 
+    64256, 64275, 64285, 64286, 64287, 64297, 64298, 64312, 64318, 64320, 
+    64323, 64326, 64434, 64467, 64830, 64831, 64848, 64914, 65008, 65020, 
+    65021, 65024, 65040, 65047, 65048, 65049, 65056, 65072, 65073, 65075, 
+    65077, 65078, 65079, 65080, 65081, 65082, 65083, 65084, 65085, 65086, 
+    65087, 65088, 65089, 65090, 65091, 65092, 65093, 65095, 65096, 65097, 
+    65101, 65104, 65108, 65112, 65113, 65114, 65115, 65116, 65117, 65118, 
+    65119, 65122, 65123, 65124, 65128, 65129, 65130, 65136, 65142, 65279, 
+    65281, 65284, 65285, 65288, 65289, 65290, 65291, 65292, 65293, 65294, 
+    65296, 65306, 65308, 65311, 65313, 65339, 65340, 65341, 65342, 65343, 
+    65344, 65345, 65371, 65372, 65373, 65374, 65375, 65376, 65377, 65378, 
+    65379, 65380, 65382, 65392, 65393, 65438, 65440, 65474, 65482, 65490, 
+    65498, 65504, 65506, 65507, 65508, 65509, 65512, 65513, 65517, 65529, 
+    65532, 0,     13,    40,    60,    63,    80,    128,   256,   263,   
+    311,   320,   373,   377,   394,   400,   464,   509,   640,   672,   
+    768,   800,   816,   833,   834,   842,   896,   927,   928,   968,   
+    976,   977,   1024,  1064,  1104,  1184,  2048,  2056,  2058,  2103,  
+    2108,  2111,  2135,  2136,  2304,  2326,  2335,  2336,  2367,  2432,  
+    2494,  2560,  2561,  2565,  2572,  2576,  2581,  2585,  2616,  2623,  
+    2624,  2640,  2656,  2685,  2687,  2816,  2873,  2880,  2904,  2912,  
+    2936,  3072,  3680,  4096,  4097,  4098,  4099,  4152,  4167,  4178,  
+    4198,  4224,  4226,  4227,  4272,  4275,  4279,  4281,  4283,  4285,  
+    4286,  4304,  4336,  4352,  4355,  4391,  4396,  4397,  4406,  4416,  
+    4480,  4482,  4483,  4531,  4534,  4543,  4545,  4549,  4560,  5760,  
+    5803,  5804,  5805,  5806,  5808,  5814,  5815,  5824,  8192,  9216,  
+    9328,  12288, 26624, 28416, 28496, 28497, 28559, 28563, 45056, 53248, 
+    53504, 53545, 53605, 53607, 53610, 53613, 53619, 53627, 53635, 53637, 
+    53644, 53674, 53678, 53760, 53826, 53829, 54016, 54112, 54272, 54298, 
+    54324, 54350, 54358, 54376, 54402, 54428, 54430, 54434, 54437, 54441, 
+    54446, 54454, 54459, 54461, 54469, 54480, 54506, 54532, 54535, 54541, 
+    54550, 54558, 54584, 54587, 54592, 54598, 54602, 54610, 54636, 54662, 
+    54688, 54714, 54740, 54766, 54792, 54818, 54844, 54870, 54896, 54922, 
+    54952, 54977, 54978, 55003, 55004, 55010, 55035, 55036, 55061, 55062, 
+    55068, 55093, 55094, 55119, 55120, 55126, 55151, 55152, 55177, 55178, 
+    55184, 55209, 55210, 55235, 55236, 55242, 55246, 60928, 60933, 60961, 
+    60964, 60967, 60969, 60980, 60985, 60987, 60994, 60999, 61001, 61003, 
+    61005, 61009, 61012, 61015, 61017, 61019, 61021, 61023, 61025, 61028, 
+    61031, 61036, 61044, 61049, 61054, 61056, 61067, 61089, 61093, 61099, 
+    61168, 61440, 61488, 61600, 61617, 61633, 61649, 61696, 61712, 61744, 
+    61808, 61926, 61968, 62016, 62032, 62208, 62256, 62263, 62336, 62368, 
+    62406, 62432, 62464, 62528, 62530, 62713, 62720, 62784, 62800, 62971, 
+    63045, 63104, 63232, 0,     42710, 42752, 46900, 46912, 47133, 63488, 
+    1,     32,    256,   0,     65533, 
+  };
+static u16 aFts5UnicodeData[] = {
+    1025,  61,    117,   55,    117,   54,    50,    53,    57,    53,    
+    49,    85,    333,   85,    121,   85,    841,   54,    53,    50,    
+    56,    48,    56,    837,   54,    57,    50,    57,    1057,  61,    
+    53,    151,   58,    53,    56,    58,    39,    52,    57,    34,    
+    58,    56,    58,    57,    79,    56,    37,    85,    56,    47,    
+    39,    51,    111,   53,    745,   57,    233,   773,   57,    261,   
+    1822,  37,    542,   37,    1534,  222,   69,    73,    37,    126,   
+    126,   73,    69,    137,   37,    73,    37,    105,   101,   73,    
+    37,    73,    37,    190,   158,   37,    126,   126,   73,    37,    
+    126,   94,    37,    39,    94,    69,    135,   41,    40,    37,    
+    41,    40,    37,    41,    40,    37,    542,   37,    606,   37,    
+    41,    40,    37,    126,   73,    37,    1886,  197,   73,    37,    
+    73,    69,    126,   105,   37,    286,   2181,  39,    869,   582,   
+    152,   390,   472,   166,   248,   38,    56,    38,    568,   3596,  
+    158,   38,    56,    94,    38,    101,   53,    88,    41,    53,    
+    105,   41,    73,    37,    553,   297,   1125,  94,    37,    105,   
+    101,   798,   133,   94,    57,    126,   94,    37,    1641,  1541,  
+    1118,  58,    172,   75,    1790,  478,   37,    2846,  1225,  38,    
+    213,   1253,  53,    49,    55,    1452,  49,    44,    53,    76,    
+    53,    76,    53,    44,    871,   103,   85,    162,   121,   85,    
+    55,    85,    90,    364,   53,    85,    1031,  38,    327,   684,   
+    333,   149,   71,    44,    3175,  53,    39,    236,   34,    58,    
+    204,   70,    76,    58,    140,   71,    333,   103,   90,    39,    
+    469,   34,    39,    44,    967,   876,   2855,  364,   39,    333,   
+    1063,  300,   70,    58,    117,   38,    711,   140,   38,    300,   
+    38,    108,   38,    172,   501,   807,   108,   53,    39,    359,   
+    876,   108,   42,    1735,  44,    42,    44,    39,    106,   268,   
+    138,   44,    74,    39,    236,   327,   76,    85,    333,   53,    
+    38,    199,   231,   44,    74,    263,   71,    711,   231,   39,    
+    135,   44,    39,    106,   140,   74,    74,    44,    39,    42,    
+    71,    103,   76,    333,   71,    87,    207,   58,    55,    76,    
+    42,    199,   71,    711,   231,   71,    71,    71,    44,    106,   
+    76,    76,    108,   44,    135,   39,    333,   76,    103,   44,    
+    76,    42,    295,   103,   711,   231,   71,    167,   44,    39,    
+    106,   172,   76,    42,    74,    44,    39,    71,    76,    333,   
+    53,    55,    44,    74,    263,   71,    711,   231,   71,    167,   
+    44,    39,    42,    44,    42,    140,   74,    74,    44,    44,    
+    42,    71,    103,   76,    333,   58,    39,    207,   44,    39,    
+    199,   103,   135,   71,    39,    71,    71,    103,   391,   74,    
+    44,    74,    106,   106,   44,    39,    42,    333,   111,   218,   
+    55,    58,    106,   263,   103,   743,   327,   167,   39,    108,   
+    138,   108,   140,   76,    71,    71,    76,    333,   239,   58,    
+    74,    263,   103,   743,   327,   167,   44,    39,    42,    44,    
+    170,   44,    74,    74,    76,    74,    39,    71,    76,    333,   
+    71,    74,    263,   103,   1319,  39,    106,   140,   106,   106,   
+    44,    39,    42,    71,    76,    333,   207,   58,    199,   74,    
+    583,   775,   295,   39,    231,   44,    106,   108,   44,    266,   
+    74,    53,    1543,  44,    71,    236,   55,    199,   38,    268,   
+    53,    333,   85,    71,    39,    71,    39,    39,    135,   231,   
+    103,   39,    39,    71,    135,   44,    71,    204,   76,    39,    
+    167,   38,    204,   333,   135,   39,    122,   501,   58,    53,    
+    122,   76,    218,   333,   335,   58,    44,    58,    44,    58,    
+    44,    54,    50,    54,    50,    74,    263,   1159,  460,   42,    
+    172,   53,    76,    167,   364,   1164,  282,   44,    218,   90,    
+    181,   154,   85,    1383,  74,    140,   42,    204,   42,    76,    
+    74,    76,    39,    333,   213,   199,   74,    76,    135,   108,   
+    39,    106,   71,    234,   103,   140,   423,   44,    74,    76,    
+    202,   44,    39,    42,    333,   106,   44,    90,    1225,  41,    
+    41,    1383,  53,    38,    10631, 135,   231,   39,    135,   1319,  
+    135,   1063,  135,   231,   39,    135,   487,   1831,  135,   2151,  
+    108,   309,   655,   519,   346,   2727,  49,    19847, 85,    551,   
+    61,    839,   54,    50,    2407,  117,   110,   423,   135,   108,   
+    583,   108,   85,    583,   76,    423,   103,   76,    1671,  76,    
+    42,    236,   266,   44,    74,    364,   117,   38,    117,   55,    
+    39,    44,    333,   335,   213,   49,    149,   108,   61,    333,   
+    1127,  38,    1671,  1319,  44,    39,    2247,  935,   108,   138,   
+    76,    106,   74,    44,    202,   108,   58,    85,    333,   967,   
+    167,   1415,  554,   231,   74,    333,   47,    1114,  743,   76,    
+    106,   85,    1703,  42,    44,    42,    236,   44,    42,    44,    
+    74,    268,   202,   332,   44,    333,   333,   245,   38,    213,   
+    140,   42,    1511,  44,    42,    172,   42,    44,    170,   44,    
+    74,    231,   333,   245,   346,   300,   314,   76,    42,    967,   
+    42,    140,   74,    76,    42,    44,    74,    71,    333,   1415,  
+    44,    42,    76,    106,   44,    42,    108,   74,    149,   1159,  
+    266,   268,   74,    76,    181,   333,   103,   333,   967,   198,   
+    85,    277,   108,   53,    428,   42,    236,   135,   44,    135,   
+    74,    44,    71,    1413,  2022,  421,   38,    1093,  1190,  1260,  
+    140,   4830,  261,   3166,  261,   265,   197,   201,   261,   265,   
+    261,   265,   197,   201,   261,   41,    41,    41,    94,    229,   
+    265,   453,   261,   264,   261,   264,   261,   264,   165,   69,    
+    137,   40,    56,    37,    120,   101,   69,    137,   40,    120,   
+    133,   69,    137,   120,   261,   169,   120,   101,   69,    137,   
+    40,    88,    381,   162,   209,   85,    52,    51,    54,    84,    
+    51,    54,    52,    277,   59,    60,    162,   61,    309,   52,    
+    51,    149,   80,    117,   57,    54,    50,    373,   57,    53,    
+    48,    341,   61,    162,   194,   47,    38,    207,   121,   54,    
+    50,    38,    335,   121,   54,    50,    422,   855,   428,   139,   
+    44,    107,   396,   90,    41,    154,   41,    90,    37,    105,   
+    69,    105,   37,    58,    41,    90,    57,    169,   218,   41,    
+    58,    41,    58,    41,    58,    137,   58,    37,    137,   37,    
+    135,   37,    90,    69,    73,    185,   94,    101,   58,    57,    
+    90,    37,    58,    527,   1134,  94,    142,   47,    185,   186,   
+    89,    154,   57,    90,    57,    90,    57,    250,   57,    1018,  
+    89,    90,    57,    58,    57,    1018,  8601,  282,   153,   666,   
+    89,    250,   54,    50,    2618,  57,    986,   825,   1306,  217,   
+    602,   1274,  378,   1935,  2522,  719,   5882,  57,    314,   57,    
+    1754,  281,   3578,  57,    4634,  3322,  54,    50,    54,    50,    
+    54,    50,    54,    50,    54,    50,    54,    50,    54,    50,    
+    975,   1434,  185,   54,    50,    1017,  54,    50,    54,    50,    
+    54,    50,    54,    50,    54,    50,    537,   8218,  4217,  54,    
+    50,    54,    50,    54,    50,    54,    50,    54,    50,    54,    
+    50,    54,    50,    54,    50,    54,    50,    54,    50,    54,    
+    50,    2041,  54,    50,    54,    50,    1049,  54,    50,    8281,  
+    1562,  697,   90,    217,   346,   1513,  1509,  126,   73,    69,    
+    254,   105,   37,    94,    37,    94,    165,   70,    105,   37,    
+    3166,  37,    218,   158,   108,   94,    149,   47,    85,    1221,  
+    37,    37,    1799,  38,    53,    44,    743,   231,   231,   231,   
+    231,   231,   231,   231,   231,   1036,  85,    52,    51,    52,    
+    51,    117,   52,    51,    53,    52,    51,    309,   49,    85,    
+    49,    53,    52,    51,    85,    52,    51,    54,    50,    54,    
+    50,    54,    50,    54,    50,    181,   38,    341,   81,    858,   
+    2874,  6874,  410,   61,    117,   58,    38,    39,    46,    54,    
+    50,    54,    50,    54,    50,    54,    50,    54,    50,    90,    
+    54,    50,    54,    50,    54,    50,    54,    50,    49,    54,    
+    82,    58,    302,   140,   74,    49,    166,   90,    110,   38,    
+    39,    53,    90,    2759,  76,    88,    70,    39,    49,    2887,  
+    53,    102,   39,    1319,  3015,  90,    143,   346,   871,   1178,  
+    519,   1018,  335,   986,   271,   58,    495,   1050,  335,   1274,  
+    495,   2042,  8218,  39,    39,    2074,  39,    39,    679,   38,    
+    36583, 1786,  1287,  198,   85,    8583,  38,    117,   519,   333,   
+    71,    1502,  39,    44,    107,   53,    332,   53,    38,    798,   
+    44,    2247,  334,   76,    213,   760,   294,   88,    478,   69,    
+    2014,  38,    261,   190,   350,   38,    88,    158,   158,   382,   
+    70,    37,    231,   44,    103,   44,    135,   44,    743,   74,    
+    76,    42,    154,   207,   90,    55,    58,    1671,  149,   74,    
+    1607,  522,   44,    85,    333,   588,   199,   117,   39,    333,   
+    903,   268,   85,    743,   364,   74,    53,    935,   108,   42,    
+    1511,  44,    74,    140,   74,    44,    138,   437,   38,    333,   
+    85,    1319,  204,   74,    76,    74,    76,    103,   44,    263,   
+    44,    42,    333,   149,   519,   38,    199,   122,   39,    42,    
+    1543,  44,    39,    108,   71,    76,    167,   76,    39,    44,    
+    39,    71,    38,    85,    359,   42,    76,    74,    85,    39,    
+    70,    42,    44,    199,   199,   199,   231,   231,   1127,  74,    
+    44,    74,    44,    74,    53,    42,    44,    333,   39,    39,    
+    743,   1575,  36,    68,    68,    36,    63,    63,    11719, 3399,  
+    229,   165,   39,    44,    327,   57,    423,   167,   39,    71,    
+    71,    3463,  536,   11623, 54,    50,    2055,  1735,  391,   55,    
+    58,    524,   245,   54,    50,    53,    236,   53,    81,    80,    
+    54,    50,    54,    50,    54,    50,    54,    50,    54,    50,    
+    54,    50,    54,    50,    54,    50,    85,    54,    50,    149,   
+    112,   117,   149,   49,    54,    50,    54,    50,    54,    50,    
+    117,   57,    49,    121,   53,    55,    85,    167,   4327,  34,    
+    117,   55,    117,   54,    50,    53,    57,    53,    49,    85,    
+    333,   85,    121,   85,    841,   54,    53,    50,    56,    48,    
+    56,    837,   54,    57,    50,    57,    54,    50,    53,    54,    
+    50,    85,    327,   38,    1447,  70,    999,   199,   199,   199,   
+    103,   87,    57,    56,    58,    87,    58,    153,   90,    98,    
+    90,    391,   839,   615,   71,    487,   455,   3943,  117,   1455,  
+    314,   1710,  143,   570,   47,    410,   1466,  44,    935,   1575,  
+    999,   143,   551,   46,    263,   46,    967,   53,    1159,  263,   
+    53,    174,   1289,  1285,  2503,  333,   199,   39,    1415,  71,    
+    39,    743,   53,    271,   711,   207,   53,    839,   53,    1799,  
+    71,    39,    108,   76,    140,   135,   103,   871,   108,   44,    
+    271,   309,   935,   79,    53,    1735,  245,   711,   271,   615,   
+    271,   2343,  1007,  42,    44,    42,    1703,  492,   245,   655,   
+    333,   76,    42,    1447,  106,   140,   74,    76,    85,    34,    
+    149,   807,   333,   108,   1159,  172,   42,    268,   333,   149,   
+    76,    42,    1543,  106,   300,   74,    135,   149,   333,   1383,  
+    44,    42,    44,    74,    204,   42,    44,    333,   28135, 3182,  
+    149,   34279, 18215, 2215,  39,    1482,  140,   422,   71,    7898,  
+    1274,  1946,  74,    108,   122,   202,   258,   268,   90,    236,   
+    986,   140,   1562,  2138,  108,   58,    2810,  591,   841,   837,   
+    841,   229,   581,   841,   837,   41,    73,    41,    73,    137,   
+    265,   133,   37,    229,   357,   841,   837,   73,    137,   265,   
+    233,   837,   73,    137,   169,   41,    233,   837,   841,   837,   
+    841,   837,   841,   837,   841,   837,   841,   837,   841,   901,   
+    809,   57,    805,   57,    197,   809,   57,    805,   57,    197,   
+    809,   57,    805,   57,    197,   809,   57,    805,   57,    197,   
+    809,   57,    805,   57,    197,   94,    1613,  135,   871,   71,    
+    39,    39,    327,   135,   39,    39,    39,    39,    39,    39,    
+    103,   71,    39,    39,    39,    39,    39,    39,    71,    39,    
+    135,   231,   135,   135,   39,    327,   551,   103,   167,   551,   
+    89,    1434,  3226,  506,   474,   506,   506,   367,   1018,  1946,  
+    1402,  954,   1402,  314,   90,    1082,  218,   2266,  666,   1210,  
+    186,   570,   2042,  58,    5850,  154,   2010,  154,   794,   2266,  
+    378,   2266,  3738,  39,    39,    39,    39,    39,    39,    17351, 
+    34,    3074,  7692,  63,    63,    
+  };
+
+int sqlite3Fts5UnicodeCategory(u32 iCode) { 
+  int iRes = -1;
+  int iHi;
+  int iLo;
+  int ret;
+  u16 iKey;
+
+  if( iCode>=(1<<20) ){
+    return 0;
+  }
+  iLo = aFts5UnicodeBlock[(iCode>>16)];
+  iHi = aFts5UnicodeBlock[1+(iCode>>16)];
+  iKey = (iCode & 0xFFFF);
+  while( iHi>iLo ){
+    int iTest = (iHi + iLo) / 2;
+    assert( iTest>=iLo && iTest<iHi );
+    if( iKey>=aFts5UnicodeMap[iTest] ){
+      iRes = iTest;
+      iLo = iTest+1;
+    }else{
+      iHi = iTest;
+    }
+  }
+
+  if( iRes<0 ) return 0;
+  if( iKey>=(aFts5UnicodeMap[iRes]+(aFts5UnicodeData[iRes]>>5)) ) return 0;
+  ret = aFts5UnicodeData[iRes] & 0x1F;
+  if( ret!=30 ) return ret;
+  return ((iKey - aFts5UnicodeMap[iRes]) & 0x01) ? 5 : 9;
+}
+
+void sqlite3Fts5UnicodeAscii(u8 *aArray, u8 *aAscii){
+  int i = 0;
+  int iTbl = 0;
+  while( i<128 ){
+    int bToken = aArray[ aFts5UnicodeData[iTbl] & 0x1F ];
+    int n = (aFts5UnicodeData[iTbl] >> 5) + i;
+    for(; i<128 && i<n; i++){
+      aAscii[i] = (u8)bToken;
+    }
+    iTbl++;
+  }
+  aAscii[0] = 0;                  /* 0x00 is never a token character */
+}
+
diff --git a/ext/fts5/fts5_varint.c b/ext/fts5/fts5_varint.c
new file mode 100644
index 0000000000000000000000000000000000000000..12fac2d485dc21629acaa0837034fda986b41816
--- /dev/null
+++ b/ext/fts5/fts5_varint.c
@@ -0,0 +1,344 @@
+/*
+** 2015 May 30
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** Routines for varint serialization and deserialization.
+*/
+
+
+#include "fts5Int.h"
+
+/*
+** This is a copy of the sqlite3GetVarint32() routine from the SQLite core.
+** Except, this version does handle the single byte case that the core
+** version depends on being handled before its function is called.
+*/
+int sqlite3Fts5GetVarint32(const unsigned char *p, u32 *v){
+  u32 a,b;
+
+  /* The 1-byte case. Overwhelmingly the most common. */
+  a = *p;
+  /* a: p0 (unmasked) */
+  if (!(a&0x80))
+  {
+    /* Values between 0 and 127 */
+    *v = a;
+    return 1;
+  }
+
+  /* The 2-byte case */
+  p++;
+  b = *p;
+  /* b: p1 (unmasked) */
+  if (!(b&0x80))
+  {
+    /* Values between 128 and 16383 */
+    a &= 0x7f;
+    a = a<<7;
+    *v = a | b;
+    return 2;
+  }
+
+  /* The 3-byte case */
+  p++;
+  a = a<<14;
+  a |= *p;
+  /* a: p0<<14 | p2 (unmasked) */
+  if (!(a&0x80))
+  {
+    /* Values between 16384 and 2097151 */
+    a &= (0x7f<<14)|(0x7f);
+    b &= 0x7f;
+    b = b<<7;
+    *v = a | b;
+    return 3;
+  }
+
+  /* A 32-bit varint is used to store size information in btrees.
+  ** Objects are rarely larger than 2MiB limit of a 3-byte varint.
+  ** A 3-byte varint is sufficient, for example, to record the size
+  ** of a 1048569-byte BLOB or string.
+  **
+  ** We only unroll the first 1-, 2-, and 3- byte cases.  The very
+  ** rare larger cases can be handled by the slower 64-bit varint
+  ** routine.
+  */
+  {
+    u64 v64;
+    u8 n;
+    p -= 2;
+    n = sqlite3Fts5GetVarint(p, &v64);
+    *v = ((u32)v64) & 0x7FFFFFFF;
+    assert( n>3 && n<=9 );
+    return n;
+  }
+}
+
+
+/*
+** Bitmasks used by sqlite3GetVarint().  These precomputed constants
+** are defined here rather than simply putting the constant expressions
+** inline in order to work around bugs in the RVT compiler.
+**
+** SLOT_2_0     A mask for  (0x7f<<14) | 0x7f
+**
+** SLOT_4_2_0   A mask for  (0x7f<<28) | SLOT_2_0
+*/
+#define SLOT_2_0     0x001fc07f
+#define SLOT_4_2_0   0xf01fc07f
+
+/*
+** Read a 64-bit variable-length integer from memory starting at p[0].
+** Return the number of bytes read.  The value is stored in *v.
+*/
+u8 sqlite3Fts5GetVarint(const unsigned char *p, u64 *v){
+  u32 a,b,s;
+
+  a = *p;
+  /* a: p0 (unmasked) */
+  if (!(a&0x80))
+  {
+    *v = a;
+    return 1;
+  }
+
+  p++;
+  b = *p;
+  /* b: p1 (unmasked) */
+  if (!(b&0x80))
+  {
+    a &= 0x7f;
+    a = a<<7;
+    a |= b;
+    *v = a;
+    return 2;
+  }
+
+  /* Verify that constants are precomputed correctly */
+  assert( SLOT_2_0 == ((0x7f<<14) | (0x7f)) );
+  assert( SLOT_4_2_0 == ((0xfU<<28) | (0x7f<<14) | (0x7f)) );
+
+  p++;
+  a = a<<14;
+  a |= *p;
+  /* a: p0<<14 | p2 (unmasked) */
+  if (!(a&0x80))
+  {
+    a &= SLOT_2_0;
+    b &= 0x7f;
+    b = b<<7;
+    a |= b;
+    *v = a;
+    return 3;
+  }
+
+  /* CSE1 from below */
+  a &= SLOT_2_0;
+  p++;
+  b = b<<14;
+  b |= *p;
+  /* b: p1<<14 | p3 (unmasked) */
+  if (!(b&0x80))
+  {
+    b &= SLOT_2_0;
+    /* moved CSE1 up */
+    /* a &= (0x7f<<14)|(0x7f); */
+    a = a<<7;
+    a |= b;
+    *v = a;
+    return 4;
+  }
+
+  /* a: p0<<14 | p2 (masked) */
+  /* b: p1<<14 | p3 (unmasked) */
+  /* 1:save off p0<<21 | p1<<14 | p2<<7 | p3 (masked) */
+  /* moved CSE1 up */
+  /* a &= (0x7f<<14)|(0x7f); */
+  b &= SLOT_2_0;
+  s = a;
+  /* s: p0<<14 | p2 (masked) */
+
+  p++;
+  a = a<<14;
+  a |= *p;
+  /* a: p0<<28 | p2<<14 | p4 (unmasked) */
+  if (!(a&0x80))
+  {
+    /* we can skip these cause they were (effectively) done above in calc'ing s */
+    /* a &= (0x7f<<28)|(0x7f<<14)|(0x7f); */
+    /* b &= (0x7f<<14)|(0x7f); */
+    b = b<<7;
+    a |= b;
+    s = s>>18;
+    *v = ((u64)s)<<32 | a;
+    return 5;
+  }
+
+  /* 2:save off p0<<21 | p1<<14 | p2<<7 | p3 (masked) */
+  s = s<<7;
+  s |= b;
+  /* s: p0<<21 | p1<<14 | p2<<7 | p3 (masked) */
+
+  p++;
+  b = b<<14;
+  b |= *p;
+  /* b: p1<<28 | p3<<14 | p5 (unmasked) */
+  if (!(b&0x80))
+  {
+    /* we can skip this cause it was (effectively) done above in calc'ing s */
+    /* b &= (0x7f<<28)|(0x7f<<14)|(0x7f); */
+    a &= SLOT_2_0;
+    a = a<<7;
+    a |= b;
+    s = s>>18;
+    *v = ((u64)s)<<32 | a;
+    return 6;
+  }
+
+  p++;
+  a = a<<14;
+  a |= *p;
+  /* a: p2<<28 | p4<<14 | p6 (unmasked) */
+  if (!(a&0x80))
+  {
+    a &= SLOT_4_2_0;
+    b &= SLOT_2_0;
+    b = b<<7;
+    a |= b;
+    s = s>>11;
+    *v = ((u64)s)<<32 | a;
+    return 7;
+  }
+
+  /* CSE2 from below */
+  a &= SLOT_2_0;
+  p++;
+  b = b<<14;
+  b |= *p;
+  /* b: p3<<28 | p5<<14 | p7 (unmasked) */
+  if (!(b&0x80))
+  {
+    b &= SLOT_4_2_0;
+    /* moved CSE2 up */
+    /* a &= (0x7f<<14)|(0x7f); */
+    a = a<<7;
+    a |= b;
+    s = s>>4;
+    *v = ((u64)s)<<32 | a;
+    return 8;
+  }
+
+  p++;
+  a = a<<15;
+  a |= *p;
+  /* a: p4<<29 | p6<<15 | p8 (unmasked) */
+
+  /* moved CSE2 up */
+  /* a &= (0x7f<<29)|(0x7f<<15)|(0xff); */
+  b &= SLOT_2_0;
+  b = b<<8;
+  a |= b;
+
+  s = s<<4;
+  b = p[-4];
+  b &= 0x7f;
+  b = b>>3;
+  s |= b;
+
+  *v = ((u64)s)<<32 | a;
+
+  return 9;
+}
+
+/*
+** The variable-length integer encoding is as follows:
+**
+** KEY:
+**         A = 0xxxxxxx    7 bits of data and one flag bit
+**         B = 1xxxxxxx    7 bits of data and one flag bit
+**         C = xxxxxxxx    8 bits of data
+**
+**  7 bits - A
+** 14 bits - BA
+** 21 bits - BBA
+** 28 bits - BBBA
+** 35 bits - BBBBA
+** 42 bits - BBBBBA
+** 49 bits - BBBBBBA
+** 56 bits - BBBBBBBA
+** 64 bits - BBBBBBBBC
+*/
+
+#ifdef SQLITE_NOINLINE
+# define FTS5_NOINLINE SQLITE_NOINLINE
+#else
+# define FTS5_NOINLINE
+#endif
+
+/*
+** Write a 64-bit variable-length integer to memory starting at p[0].
+** The length of data write will be between 1 and 9 bytes.  The number
+** of bytes written is returned.
+**
+** A variable-length integer consists of the lower 7 bits of each byte
+** for all bytes that have the 8th bit set and one byte with the 8th
+** bit clear.  Except, if we get to the 9th byte, it stores the full
+** 8 bits and is the last byte.
+*/
+static int FTS5_NOINLINE fts5PutVarint64(unsigned char *p, u64 v){
+  int i, j, n;
+  u8 buf[10];
+  if( v & (((u64)0xff000000)<<32) ){
+    p[8] = (u8)v;
+    v >>= 8;
+    for(i=7; i>=0; i--){
+      p[i] = (u8)((v & 0x7f) | 0x80);
+      v >>= 7;
+    }
+    return 9;
+  }    
+  n = 0;
+  do{
+    buf[n++] = (u8)((v & 0x7f) | 0x80);
+    v >>= 7;
+  }while( v!=0 );
+  buf[0] &= 0x7f;
+  assert( n<=9 );
+  for(i=0, j=n-1; j>=0; j--, i++){
+    p[i] = buf[j];
+  }
+  return n;
+}
+
+int sqlite3Fts5PutVarint(unsigned char *p, u64 v){
+  if( v<=0x7f ){
+    p[0] = v&0x7f;
+    return 1;
+  }
+  if( v<=0x3fff ){
+    p[0] = ((v>>7)&0x7f)|0x80;
+    p[1] = v&0x7f;
+    return 2;
+  }
+  return fts5PutVarint64(p,v);
+}
+
+
+int sqlite3Fts5GetVarintLen(u32 iVal){
+#if 0
+  if( iVal<(1 << 7 ) ) return 1;
+#endif
+  assert( iVal>=(1 << 7) );
+  if( iVal<(1 << 14) ) return 2;
+  if( iVal<(1 << 21) ) return 3;
+  if( iVal<(1 << 28) ) return 4;
+  return 5;
+}
diff --git a/ext/fts5/fts5_vocab.c b/ext/fts5/fts5_vocab.c
new file mode 100644
index 0000000000000000000000000000000000000000..fb280567f4e00636543ebc49c53077af2885c9b4
--- /dev/null
+++ b/ext/fts5/fts5_vocab.c
@@ -0,0 +1,808 @@
+/*
+** 2015 May 08
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This is an SQLite virtual table module implementing direct access to an
+** existing FTS5 index. The module may create several different types of 
+** tables:
+**
+** col:
+**     CREATE TABLE vocab(term, col, doc, cnt, PRIMARY KEY(term, col));
+**
+**   One row for each term/column combination. The value of $doc is set to
+**   the number of fts5 rows that contain at least one instance of term
+**   $term within column $col. Field $cnt is set to the total number of 
+**   instances of term $term in column $col (in any row of the fts5 table). 
+**
+** row:
+**     CREATE TABLE vocab(term, doc, cnt, PRIMARY KEY(term));
+**
+**   One row for each term in the database. The value of $doc is set to
+**   the number of fts5 rows that contain at least one instance of term
+**   $term. Field $cnt is set to the total number of instances of term 
+**   $term in the database.
+**
+** instance:
+**     CREATE TABLE vocab(term, doc, col, offset, PRIMARY KEY(<all-fields>));
+**
+**   One row for each term instance in the database. 
+*/
+
+
+#include "fts5Int.h"
+
+
+typedef struct Fts5VocabTable Fts5VocabTable;
+typedef struct Fts5VocabCursor Fts5VocabCursor;
+
+struct Fts5VocabTable {
+  sqlite3_vtab base;
+  char *zFts5Tbl;                 /* Name of fts5 table */
+  char *zFts5Db;                  /* Db containing fts5 table */
+  sqlite3 *db;                    /* Database handle */
+  Fts5Global *pGlobal;            /* FTS5 global object for this database */
+  int eType;                      /* FTS5_VOCAB_COL, ROW or INSTANCE */
+  unsigned bBusy;                 /* True if busy */
+};
+
+struct Fts5VocabCursor {
+  sqlite3_vtab_cursor base;
+  sqlite3_stmt *pStmt;            /* Statement holding lock on pIndex */
+  Fts5Table *pFts5;               /* Associated FTS5 table */
+
+  int bEof;                       /* True if this cursor is at EOF */
+  Fts5IndexIter *pIter;           /* Term/rowid iterator object */
+  void *pStruct;                  /* From sqlite3Fts5StructureRef() */
+
+  int nLeTerm;                    /* Size of zLeTerm in bytes */
+  char *zLeTerm;                  /* (term <= $zLeTerm) paramater, or NULL */
+  int colUsed;                    /* Copy of sqlite3_index_info.colUsed */
+
+  /* These are used by 'col' tables only */
+  int iCol;
+  i64 *aCnt;
+  i64 *aDoc;
+
+  /* Output values used by all tables. */
+  i64 rowid;                      /* This table's current rowid value */
+  Fts5Buffer term;                /* Current value of 'term' column */
+
+  /* Output values Used by 'instance' tables only */
+  i64 iInstPos;
+  int iInstOff;
+};
+
+#define FTS5_VOCAB_COL      0
+#define FTS5_VOCAB_ROW      1
+#define FTS5_VOCAB_INSTANCE 2
+
+#define FTS5_VOCAB_COL_SCHEMA  "term, col, doc, cnt"
+#define FTS5_VOCAB_ROW_SCHEMA  "term, doc, cnt"
+#define FTS5_VOCAB_INST_SCHEMA "term, doc, col, offset"
+
+/*
+** Bits for the mask used as the idxNum value by xBestIndex/xFilter.
+*/
+#define FTS5_VOCAB_TERM_EQ 0x0100
+#define FTS5_VOCAB_TERM_GE 0x0200
+#define FTS5_VOCAB_TERM_LE 0x0400
+
+#define FTS5_VOCAB_COLUSED_MASK 0xFF
+
+
+/*
+** Translate a string containing an fts5vocab table type to an 
+** FTS5_VOCAB_XXX constant. If successful, set *peType to the output
+** value and return SQLITE_OK. Otherwise, set *pzErr to an error message
+** and return SQLITE_ERROR.
+*/
+static int fts5VocabTableType(const char *zType, char **pzErr, int *peType){
+  int rc = SQLITE_OK;
+  char *zCopy = sqlite3Fts5Strndup(&rc, zType, -1);
+  if( rc==SQLITE_OK ){
+    sqlite3Fts5Dequote(zCopy);
+    if( sqlite3_stricmp(zCopy, "col")==0 ){
+      *peType = FTS5_VOCAB_COL;
+    }else
+
+    if( sqlite3_stricmp(zCopy, "row")==0 ){
+      *peType = FTS5_VOCAB_ROW;
+    }else
+    if( sqlite3_stricmp(zCopy, "instance")==0 ){
+      *peType = FTS5_VOCAB_INSTANCE;
+    }else
+    {
+      *pzErr = sqlite3_mprintf("fts5vocab: unknown table type: %Q", zCopy);
+      rc = SQLITE_ERROR;
+    }
+    sqlite3_free(zCopy);
+  }
+
+  return rc;
+}
+
+
+/*
+** The xDisconnect() virtual table method.
+*/
+static int fts5VocabDisconnectMethod(sqlite3_vtab *pVtab){
+  Fts5VocabTable *pTab = (Fts5VocabTable*)pVtab;
+  sqlite3_free(pTab);
+  return SQLITE_OK;
+}
+
+/*
+** The xDestroy() virtual table method.
+*/
+static int fts5VocabDestroyMethod(sqlite3_vtab *pVtab){
+  Fts5VocabTable *pTab = (Fts5VocabTable*)pVtab;
+  sqlite3_free(pTab);
+  return SQLITE_OK;
+}
+
+/*
+** This function is the implementation of both the xConnect and xCreate
+** methods of the FTS3 virtual table.
+**
+** The argv[] array contains the following:
+**
+**   argv[0]   -> module name  ("fts5vocab")
+**   argv[1]   -> database name
+**   argv[2]   -> table name
+**
+** then:
+**
+**   argv[3]   -> name of fts5 table
+**   argv[4]   -> type of fts5vocab table
+**
+** or, for tables in the TEMP schema only.
+**
+**   argv[3]   -> name of fts5 tables database
+**   argv[4]   -> name of fts5 table
+**   argv[5]   -> type of fts5vocab table
+*/
+static int fts5VocabInitVtab(
+  sqlite3 *db,                    /* The SQLite database connection */
+  void *pAux,                     /* Pointer to Fts5Global object */
+  int argc,                       /* Number of elements in argv array */
+  const char * const *argv,       /* xCreate/xConnect argument array */
+  sqlite3_vtab **ppVTab,          /* Write the resulting vtab structure here */
+  char **pzErr                    /* Write any error message here */
+){
+  const char *azSchema[] = { 
+    "CREATE TABlE vocab(" FTS5_VOCAB_COL_SCHEMA  ")", 
+    "CREATE TABlE vocab(" FTS5_VOCAB_ROW_SCHEMA  ")",
+    "CREATE TABlE vocab(" FTS5_VOCAB_INST_SCHEMA ")"
+  };
+
+  Fts5VocabTable *pRet = 0;
+  int rc = SQLITE_OK;             /* Return code */
+  int bDb;
+
+  bDb = (argc==6 && strlen(argv[1])==4 && memcmp("temp", argv[1], 4)==0);
+
+  if( argc!=5 && bDb==0 ){
+    *pzErr = sqlite3_mprintf("wrong number of vtable arguments");
+    rc = SQLITE_ERROR;
+  }else{
+    int nByte;                      /* Bytes of space to allocate */
+    const char *zDb = bDb ? argv[3] : argv[1];
+    const char *zTab = bDb ? argv[4] : argv[3];
+    const char *zType = bDb ? argv[5] : argv[4];
+    int nDb = (int)strlen(zDb)+1; 
+    int nTab = (int)strlen(zTab)+1;
+    int eType = 0;
+    
+    rc = fts5VocabTableType(zType, pzErr, &eType);
+    if( rc==SQLITE_OK ){
+      assert( eType>=0 && eType<ArraySize(azSchema) );
+      rc = sqlite3_declare_vtab(db, azSchema[eType]);
+    }
+
+    nByte = sizeof(Fts5VocabTable) + nDb + nTab;
+    pRet = sqlite3Fts5MallocZero(&rc, nByte);
+    if( pRet ){
+      pRet->pGlobal = (Fts5Global*)pAux;
+      pRet->eType = eType;
+      pRet->db = db;
+      pRet->zFts5Tbl = (char*)&pRet[1];
+      pRet->zFts5Db = &pRet->zFts5Tbl[nTab];
+      memcpy(pRet->zFts5Tbl, zTab, nTab);
+      memcpy(pRet->zFts5Db, zDb, nDb);
+      sqlite3Fts5Dequote(pRet->zFts5Tbl);
+      sqlite3Fts5Dequote(pRet->zFts5Db);
+    }
+  }
+
+  *ppVTab = (sqlite3_vtab*)pRet;
+  return rc;
+}
+
+
+/*
+** The xConnect() and xCreate() methods for the virtual table. All the
+** work is done in function fts5VocabInitVtab().
+*/
+static int fts5VocabConnectMethod(
+  sqlite3 *db,                    /* Database connection */
+  void *pAux,                     /* Pointer to tokenizer hash table */
+  int argc,                       /* Number of elements in argv array */
+  const char * const *argv,       /* xCreate/xConnect argument array */
+  sqlite3_vtab **ppVtab,          /* OUT: New sqlite3_vtab object */
+  char **pzErr                    /* OUT: sqlite3_malloc'd error message */
+){
+  return fts5VocabInitVtab(db, pAux, argc, argv, ppVtab, pzErr);
+}
+static int fts5VocabCreateMethod(
+  sqlite3 *db,                    /* Database connection */
+  void *pAux,                     /* Pointer to tokenizer hash table */
+  int argc,                       /* Number of elements in argv array */
+  const char * const *argv,       /* xCreate/xConnect argument array */
+  sqlite3_vtab **ppVtab,          /* OUT: New sqlite3_vtab object */
+  char **pzErr                    /* OUT: sqlite3_malloc'd error message */
+){
+  return fts5VocabInitVtab(db, pAux, argc, argv, ppVtab, pzErr);
+}
+
+/* 
+** Implementation of the xBestIndex method.
+**
+** Only constraints of the form:
+**
+**     term <= ?
+**     term == ?
+**     term >= ?
+**
+** are interpreted. Less-than and less-than-or-equal are treated 
+** identically, as are greater-than and greater-than-or-equal.
+*/
+static int fts5VocabBestIndexMethod(
+  sqlite3_vtab *pUnused,
+  sqlite3_index_info *pInfo
+){
+  int i;
+  int iTermEq = -1;
+  int iTermGe = -1;
+  int iTermLe = -1;
+  int idxNum = (int)pInfo->colUsed;
+  int nArg = 0;
+
+  UNUSED_PARAM(pUnused);
+
+  assert( (pInfo->colUsed & FTS5_VOCAB_COLUSED_MASK)==pInfo->colUsed );
+
+  for(i=0; i<pInfo->nConstraint; i++){
+    struct sqlite3_index_constraint *p = &pInfo->aConstraint[i];
+    if( p->usable==0 ) continue;
+    if( p->iColumn==0 ){          /* term column */
+      if( p->op==SQLITE_INDEX_CONSTRAINT_EQ ) iTermEq = i;
+      if( p->op==SQLITE_INDEX_CONSTRAINT_LE ) iTermLe = i;
+      if( p->op==SQLITE_INDEX_CONSTRAINT_LT ) iTermLe = i;
+      if( p->op==SQLITE_INDEX_CONSTRAINT_GE ) iTermGe = i;
+      if( p->op==SQLITE_INDEX_CONSTRAINT_GT ) iTermGe = i;
+    }
+  }
+
+  if( iTermEq>=0 ){
+    idxNum |= FTS5_VOCAB_TERM_EQ;
+    pInfo->aConstraintUsage[iTermEq].argvIndex = ++nArg;
+    pInfo->estimatedCost = 100;
+  }else{
+    pInfo->estimatedCost = 1000000;
+    if( iTermGe>=0 ){
+      idxNum |= FTS5_VOCAB_TERM_GE;
+      pInfo->aConstraintUsage[iTermGe].argvIndex = ++nArg;
+      pInfo->estimatedCost = pInfo->estimatedCost / 2;
+    }
+    if( iTermLe>=0 ){
+      idxNum |= FTS5_VOCAB_TERM_LE;
+      pInfo->aConstraintUsage[iTermLe].argvIndex = ++nArg;
+      pInfo->estimatedCost = pInfo->estimatedCost / 2;
+    }
+  }
+
+  /* This virtual table always delivers results in ascending order of
+  ** the "term" column (column 0). So if the user has requested this
+  ** specifically - "ORDER BY term" or "ORDER BY term ASC" - set the
+  ** sqlite3_index_info.orderByConsumed flag to tell the core the results
+  ** are already in sorted order.  */
+  if( pInfo->nOrderBy==1 
+   && pInfo->aOrderBy[0].iColumn==0 
+   && pInfo->aOrderBy[0].desc==0
+  ){
+    pInfo->orderByConsumed = 1;
+  }
+
+  pInfo->idxNum = idxNum;
+  return SQLITE_OK;
+}
+
+/*
+** Implementation of xOpen method.
+*/
+static int fts5VocabOpenMethod(
+  sqlite3_vtab *pVTab, 
+  sqlite3_vtab_cursor **ppCsr
+){
+  Fts5VocabTable *pTab = (Fts5VocabTable*)pVTab;
+  Fts5Table *pFts5 = 0;
+  Fts5VocabCursor *pCsr = 0;
+  int rc = SQLITE_OK;
+  sqlite3_stmt *pStmt = 0;
+  char *zSql = 0;
+
+  if( pTab->bBusy ){
+    pVTab->zErrMsg = sqlite3_mprintf(
+       "recursive definition for %s.%s", pTab->zFts5Db, pTab->zFts5Tbl
+    );
+    return SQLITE_ERROR;
+  }
+  zSql = sqlite3Fts5Mprintf(&rc,
+      "SELECT t.%Q FROM %Q.%Q AS t WHERE t.%Q MATCH '*id'",
+      pTab->zFts5Tbl, pTab->zFts5Db, pTab->zFts5Tbl, pTab->zFts5Tbl
+  );
+  if( zSql ){
+    rc = sqlite3_prepare_v2(pTab->db, zSql, -1, &pStmt, 0);
+  }
+  sqlite3_free(zSql);
+  assert( rc==SQLITE_OK || pStmt==0 );
+  if( rc==SQLITE_ERROR ) rc = SQLITE_OK;
+
+  pTab->bBusy = 1;
+  if( pStmt && sqlite3_step(pStmt)==SQLITE_ROW ){
+    i64 iId = sqlite3_column_int64(pStmt, 0);
+    pFts5 = sqlite3Fts5TableFromCsrid(pTab->pGlobal, iId);
+  }
+  pTab->bBusy = 0;
+
+  if( rc==SQLITE_OK ){
+    if( pFts5==0 ){
+      rc = sqlite3_finalize(pStmt);
+      pStmt = 0;
+      if( rc==SQLITE_OK ){
+        pVTab->zErrMsg = sqlite3_mprintf(
+            "no such fts5 table: %s.%s", pTab->zFts5Db, pTab->zFts5Tbl
+        );
+        rc = SQLITE_ERROR;
+      }
+    }else{
+      rc = sqlite3Fts5FlushToDisk(pFts5);
+    }
+  }
+
+  if( rc==SQLITE_OK ){
+    i64 nByte = pFts5->pConfig->nCol * sizeof(i64)*2 + sizeof(Fts5VocabCursor);
+    pCsr = (Fts5VocabCursor*)sqlite3Fts5MallocZero(&rc, nByte);
+  }
+
+  if( pCsr ){
+    pCsr->pFts5 = pFts5;
+    pCsr->pStmt = pStmt;
+    pCsr->aCnt = (i64*)&pCsr[1];
+    pCsr->aDoc = &pCsr->aCnt[pFts5->pConfig->nCol];
+  }else{
+    sqlite3_finalize(pStmt);
+  }
+
+  *ppCsr = (sqlite3_vtab_cursor*)pCsr;
+  return rc;
+}
+
+static void fts5VocabResetCursor(Fts5VocabCursor *pCsr){
+  pCsr->rowid = 0;
+  sqlite3Fts5IterClose(pCsr->pIter);
+  sqlite3Fts5StructureRelease(pCsr->pStruct);
+  pCsr->pStruct = 0;
+  pCsr->pIter = 0;
+  sqlite3_free(pCsr->zLeTerm);
+  pCsr->nLeTerm = -1;
+  pCsr->zLeTerm = 0;
+  pCsr->bEof = 0;
+}
+
+/*
+** Close the cursor.  For additional information see the documentation
+** on the xClose method of the virtual table interface.
+*/
+static int fts5VocabCloseMethod(sqlite3_vtab_cursor *pCursor){
+  Fts5VocabCursor *pCsr = (Fts5VocabCursor*)pCursor;
+  fts5VocabResetCursor(pCsr);
+  sqlite3Fts5BufferFree(&pCsr->term);
+  sqlite3_finalize(pCsr->pStmt);
+  sqlite3_free(pCsr);
+  return SQLITE_OK;
+}
+
+static int fts5VocabInstanceNewTerm(Fts5VocabCursor *pCsr){
+  int rc = SQLITE_OK;
+  
+  if( sqlite3Fts5IterEof(pCsr->pIter) ){
+    pCsr->bEof = 1;
+  }else{
+    const char *zTerm;
+    int nTerm;
+    zTerm = sqlite3Fts5IterTerm(pCsr->pIter, &nTerm);
+    if( pCsr->nLeTerm>=0 ){
+      int nCmp = MIN(nTerm, pCsr->nLeTerm);
+      int bCmp = memcmp(pCsr->zLeTerm, zTerm, nCmp);
+      if( bCmp<0 || (bCmp==0 && pCsr->nLeTerm<nTerm) ){
+        pCsr->bEof = 1;
+      }
+    }
+
+    sqlite3Fts5BufferSet(&rc, &pCsr->term, nTerm, (const u8*)zTerm);
+  }
+  return rc;
+}
+
+static int fts5VocabInstanceNext(Fts5VocabCursor *pCsr){
+  int eDetail = pCsr->pFts5->pConfig->eDetail;
+  int rc = SQLITE_OK;
+  Fts5IndexIter *pIter = pCsr->pIter;
+  i64 *pp = &pCsr->iInstPos;
+  int *po = &pCsr->iInstOff;
+  
+  assert( sqlite3Fts5IterEof(pIter)==0 );
+  assert( pCsr->bEof==0 );
+  while( eDetail==FTS5_DETAIL_NONE
+      || sqlite3Fts5PoslistNext64(pIter->pData, pIter->nData, po, pp) 
+  ){
+    pCsr->iInstPos = 0;
+    pCsr->iInstOff = 0;
+
+    rc = sqlite3Fts5IterNextScan(pCsr->pIter);
+    if( rc==SQLITE_OK ){
+      rc = fts5VocabInstanceNewTerm(pCsr);
+      if( pCsr->bEof || eDetail==FTS5_DETAIL_NONE ) break;
+    }
+    if( rc ){
+      pCsr->bEof = 1;
+      break;
+    }
+  }
+
+  return rc;
+}
+
+/*
+** Advance the cursor to the next row in the table.
+*/
+static int fts5VocabNextMethod(sqlite3_vtab_cursor *pCursor){
+  Fts5VocabCursor *pCsr = (Fts5VocabCursor*)pCursor;
+  Fts5VocabTable *pTab = (Fts5VocabTable*)pCursor->pVtab;
+  int nCol = pCsr->pFts5->pConfig->nCol;
+  int rc;
+
+  rc = sqlite3Fts5StructureTest(pCsr->pFts5->pIndex, pCsr->pStruct);
+  if( rc!=SQLITE_OK ) return rc;
+  pCsr->rowid++;
+
+  if( pTab->eType==FTS5_VOCAB_INSTANCE ){
+    return fts5VocabInstanceNext(pCsr);
+  }
+
+  if( pTab->eType==FTS5_VOCAB_COL ){
+    for(pCsr->iCol++; pCsr->iCol<nCol; pCsr->iCol++){
+      if( pCsr->aDoc[pCsr->iCol] ) break;
+    }
+  }
+
+  if( pTab->eType!=FTS5_VOCAB_COL || pCsr->iCol>=nCol ){
+    if( sqlite3Fts5IterEof(pCsr->pIter) ){
+      pCsr->bEof = 1;
+    }else{
+      const char *zTerm;
+      int nTerm;
+
+      zTerm = sqlite3Fts5IterTerm(pCsr->pIter, &nTerm);
+      assert( nTerm>=0 );
+      if( pCsr->nLeTerm>=0 ){
+        int nCmp = MIN(nTerm, pCsr->nLeTerm);
+        int bCmp = memcmp(pCsr->zLeTerm, zTerm, nCmp);
+        if( bCmp<0 || (bCmp==0 && pCsr->nLeTerm<nTerm) ){
+          pCsr->bEof = 1;
+          return SQLITE_OK;
+        }
+      }
+
+      sqlite3Fts5BufferSet(&rc, &pCsr->term, nTerm, (const u8*)zTerm);
+      memset(pCsr->aCnt, 0, nCol * sizeof(i64));
+      memset(pCsr->aDoc, 0, nCol * sizeof(i64));
+      pCsr->iCol = 0;
+
+      assert( pTab->eType==FTS5_VOCAB_COL || pTab->eType==FTS5_VOCAB_ROW );
+      while( rc==SQLITE_OK ){
+        int eDetail = pCsr->pFts5->pConfig->eDetail;
+        const u8 *pPos; int nPos;   /* Position list */
+        i64 iPos = 0;               /* 64-bit position read from poslist */
+        int iOff = 0;               /* Current offset within position list */
+
+        pPos = pCsr->pIter->pData;
+        nPos = pCsr->pIter->nData;
+
+        switch( pTab->eType ){
+          case FTS5_VOCAB_ROW:
+            /* Do not bother counting the number of instances if the "cnt"
+            ** column is not being read (according to colUsed).  */
+            if( eDetail==FTS5_DETAIL_FULL && (pCsr->colUsed & 0x04) ){
+              while( iPos<nPos ){
+                u32 ii;
+                fts5FastGetVarint32(pPos, iPos, ii);
+                if( ii==1 ){ 
+                  /* New column in the position list */
+                  fts5FastGetVarint32(pPos, iPos, ii);
+                }else{
+                  /* An instance - increment pCsr->aCnt[] */
+                  pCsr->aCnt[0]++;
+                }
+              }
+            }
+            pCsr->aDoc[0]++;
+            break;
+
+          case FTS5_VOCAB_COL:
+            if( eDetail==FTS5_DETAIL_FULL ){
+              int iCol = -1;
+              while( 0==sqlite3Fts5PoslistNext64(pPos, nPos, &iOff, &iPos) ){
+                int ii = FTS5_POS2COLUMN(iPos);
+                if( iCol!=ii ){
+                  if( ii>=nCol ){
+                    rc = FTS5_CORRUPT;
+                    break;
+                  }
+                  pCsr->aDoc[ii]++;
+                  iCol = ii;
+                }
+                pCsr->aCnt[ii]++;
+              }
+            }else if( eDetail==FTS5_DETAIL_COLUMNS ){
+              while( 0==sqlite3Fts5PoslistNext64(pPos, nPos, &iOff,&iPos) ){
+                assert_nc( iPos>=0 && iPos<nCol );
+                if( iPos>=nCol ){
+                  rc = FTS5_CORRUPT;
+                  break;
+                }
+                pCsr->aDoc[iPos]++;
+              }
+            }else{
+              assert( eDetail==FTS5_DETAIL_NONE );
+              pCsr->aDoc[0]++;
+            }
+            break;
+
+          default:
+            assert( pTab->eType==FTS5_VOCAB_INSTANCE );
+            break;
+        }
+
+        if( rc==SQLITE_OK ){
+          rc = sqlite3Fts5IterNextScan(pCsr->pIter);
+        }
+        if( pTab->eType==FTS5_VOCAB_INSTANCE ) break;
+
+        if( rc==SQLITE_OK ){
+          zTerm = sqlite3Fts5IterTerm(pCsr->pIter, &nTerm);
+          if( nTerm!=pCsr->term.n 
+          || (nTerm>0 && memcmp(zTerm, pCsr->term.p, nTerm)) 
+          ){
+            break;
+          }
+          if( sqlite3Fts5IterEof(pCsr->pIter) ) break;
+        }
+      }
+    }
+  }
+
+  if( rc==SQLITE_OK && pCsr->bEof==0 && pTab->eType==FTS5_VOCAB_COL ){
+    for(/* noop */; pCsr->iCol<nCol && pCsr->aDoc[pCsr->iCol]==0; pCsr->iCol++);
+    if( pCsr->iCol==nCol ){
+      rc = FTS5_CORRUPT;
+    }
+  }
+  return rc;
+}
+
+/*
+** This is the xFilter implementation for the virtual table.
+*/
+static int fts5VocabFilterMethod(
+  sqlite3_vtab_cursor *pCursor,   /* The cursor used for this query */
+  int idxNum,                     /* Strategy index */
+  const char *zUnused,            /* Unused */
+  int nUnused,                    /* Number of elements in apVal */
+  sqlite3_value **apVal           /* Arguments for the indexing scheme */
+){
+  Fts5VocabTable *pTab = (Fts5VocabTable*)pCursor->pVtab;
+  Fts5VocabCursor *pCsr = (Fts5VocabCursor*)pCursor;
+  int eType = pTab->eType;
+  int rc = SQLITE_OK;
+
+  int iVal = 0;
+  int f = FTS5INDEX_QUERY_SCAN;
+  const char *zTerm = 0;
+  int nTerm = 0;
+
+  sqlite3_value *pEq = 0;
+  sqlite3_value *pGe = 0;
+  sqlite3_value *pLe = 0;
+
+  UNUSED_PARAM2(zUnused, nUnused);
+
+  fts5VocabResetCursor(pCsr);
+  if( idxNum & FTS5_VOCAB_TERM_EQ ) pEq = apVal[iVal++];
+  if( idxNum & FTS5_VOCAB_TERM_GE ) pGe = apVal[iVal++];
+  if( idxNum & FTS5_VOCAB_TERM_LE ) pLe = apVal[iVal++];
+  pCsr->colUsed = (idxNum & FTS5_VOCAB_COLUSED_MASK);
+
+  if( pEq ){
+    zTerm = (const char *)sqlite3_value_text(pEq);
+    nTerm = sqlite3_value_bytes(pEq);
+    f = FTS5INDEX_QUERY_NOTOKENDATA;
+  }else{
+    if( pGe ){
+      zTerm = (const char *)sqlite3_value_text(pGe);
+      nTerm = sqlite3_value_bytes(pGe);
+    }
+    if( pLe ){
+      const char *zCopy = (const char *)sqlite3_value_text(pLe);
+      if( zCopy==0 ) zCopy = "";
+      pCsr->nLeTerm = sqlite3_value_bytes(pLe);
+      pCsr->zLeTerm = sqlite3_malloc(pCsr->nLeTerm+1);
+      if( pCsr->zLeTerm==0 ){
+        rc = SQLITE_NOMEM;
+      }else{
+        memcpy(pCsr->zLeTerm, zCopy, pCsr->nLeTerm+1);
+      }
+    }
+  }
+
+  if( rc==SQLITE_OK ){
+    Fts5Index *pIndex = pCsr->pFts5->pIndex;
+    rc = sqlite3Fts5IndexQuery(pIndex, zTerm, nTerm, f, 0, &pCsr->pIter);
+    if( rc==SQLITE_OK ){
+      pCsr->pStruct = sqlite3Fts5StructureRef(pIndex);
+    }
+  }
+  if( rc==SQLITE_OK && eType==FTS5_VOCAB_INSTANCE ){
+    rc = fts5VocabInstanceNewTerm(pCsr);
+  }
+  if( rc==SQLITE_OK && !pCsr->bEof 
+   && (eType!=FTS5_VOCAB_INSTANCE 
+    || pCsr->pFts5->pConfig->eDetail!=FTS5_DETAIL_NONE)
+  ){
+    rc = fts5VocabNextMethod(pCursor);
+  }
+
+  return rc;
+}
+
+/* 
+** This is the xEof method of the virtual table. SQLite calls this 
+** routine to find out if it has reached the end of a result set.
+*/
+static int fts5VocabEofMethod(sqlite3_vtab_cursor *pCursor){
+  Fts5VocabCursor *pCsr = (Fts5VocabCursor*)pCursor;
+  return pCsr->bEof;
+}
+
+static int fts5VocabColumnMethod(
+  sqlite3_vtab_cursor *pCursor,   /* Cursor to retrieve value from */
+  sqlite3_context *pCtx,          /* Context for sqlite3_result_xxx() calls */
+  int iCol                        /* Index of column to read value from */
+){
+  Fts5VocabCursor *pCsr = (Fts5VocabCursor*)pCursor;
+  int eDetail = pCsr->pFts5->pConfig->eDetail;
+  int eType = ((Fts5VocabTable*)(pCursor->pVtab))->eType;
+  i64 iVal = 0;
+
+  if( iCol==0 ){
+    sqlite3_result_text(
+        pCtx, (const char*)pCsr->term.p, pCsr->term.n, SQLITE_TRANSIENT
+    );
+  }else if( eType==FTS5_VOCAB_COL ){
+    assert( iCol==1 || iCol==2 || iCol==3 );
+    if( iCol==1 ){
+      if( eDetail!=FTS5_DETAIL_NONE ){
+        const char *z = pCsr->pFts5->pConfig->azCol[pCsr->iCol];
+        sqlite3_result_text(pCtx, z, -1, SQLITE_STATIC);
+      }
+    }else if( iCol==2 ){
+      iVal = pCsr->aDoc[pCsr->iCol];
+    }else{
+      iVal = pCsr->aCnt[pCsr->iCol];
+    }
+  }else if( eType==FTS5_VOCAB_ROW ){
+    assert( iCol==1 || iCol==2 );
+    if( iCol==1 ){
+      iVal = pCsr->aDoc[0];
+    }else{
+      iVal = pCsr->aCnt[0];
+    }
+  }else{
+    assert( eType==FTS5_VOCAB_INSTANCE );
+    switch( iCol ){
+      case 1:
+        sqlite3_result_int64(pCtx, pCsr->pIter->iRowid);
+        break;
+      case 2: {
+        int ii = -1;
+        if( eDetail==FTS5_DETAIL_FULL ){
+          ii = FTS5_POS2COLUMN(pCsr->iInstPos);
+        }else if( eDetail==FTS5_DETAIL_COLUMNS ){
+          ii = (int)pCsr->iInstPos;
+        }
+        if( ii>=0 && ii<pCsr->pFts5->pConfig->nCol ){
+          const char *z = pCsr->pFts5->pConfig->azCol[ii];
+          sqlite3_result_text(pCtx, z, -1, SQLITE_STATIC);
+        }
+        break;
+      }
+      default: {
+        assert( iCol==3 );
+        if( eDetail==FTS5_DETAIL_FULL ){
+          int ii = FTS5_POS2OFFSET(pCsr->iInstPos);
+          sqlite3_result_int(pCtx, ii);
+        }
+        break;
+      }
+    }
+  }
+
+  if( iVal>0 ) sqlite3_result_int64(pCtx, iVal);
+  return SQLITE_OK;
+}
+
+/* 
+** This is the xRowid method. The SQLite core calls this routine to
+** retrieve the rowid for the current row of the result set. The
+** rowid should be written to *pRowid.
+*/
+static int fts5VocabRowidMethod(
+  sqlite3_vtab_cursor *pCursor, 
+  sqlite_int64 *pRowid
+){
+  Fts5VocabCursor *pCsr = (Fts5VocabCursor*)pCursor;
+  *pRowid = pCsr->rowid;
+  return SQLITE_OK;
+}
+
+int sqlite3Fts5VocabInit(Fts5Global *pGlobal, sqlite3 *db){
+  static const sqlite3_module fts5Vocab = {
+    /* iVersion      */ 2,
+    /* xCreate       */ fts5VocabCreateMethod,
+    /* xConnect      */ fts5VocabConnectMethod,
+    /* xBestIndex    */ fts5VocabBestIndexMethod,
+    /* xDisconnect   */ fts5VocabDisconnectMethod,
+    /* xDestroy      */ fts5VocabDestroyMethod,
+    /* xOpen         */ fts5VocabOpenMethod,
+    /* xClose        */ fts5VocabCloseMethod,
+    /* xFilter       */ fts5VocabFilterMethod,
+    /* xNext         */ fts5VocabNextMethod,
+    /* xEof          */ fts5VocabEofMethod,
+    /* xColumn       */ fts5VocabColumnMethod,
+    /* xRowid        */ fts5VocabRowidMethod,
+    /* xUpdate       */ 0,
+    /* xBegin        */ 0,
+    /* xSync         */ 0,
+    /* xCommit       */ 0,
+    /* xRollback     */ 0,
+    /* xFindFunction */ 0,
+    /* xRename       */ 0,
+    /* xSavepoint    */ 0,
+    /* xRelease      */ 0,
+    /* xRollbackTo   */ 0,
+    /* xShadowName   */ 0,
+    /* xIntegrity    */ 0
+  };
+  void *p = (void*)pGlobal;
+
+  return sqlite3_create_module_v2(db, "fts5vocab", &fts5Vocab, p, 0);
+}
diff --git a/ext/fts5/fts5parse.y b/ext/fts5/fts5parse.y
new file mode 100644
index 0000000000000000000000000000000000000000..134125db1faa7212bea68855d76e8161a171fe74
--- /dev/null
+++ b/ext/fts5/fts5parse.y
@@ -0,0 +1,197 @@
+/*
+** 2014 May 31
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+*/
+
+
+// All token codes are small integers with #defines that begin with "TK_"
+%token_prefix FTS5_
+
+// The type of the data attached to each token is Token.  This is also the
+// default type for non-terminals.
+//
+%token_type {Fts5Token}
+%default_type {Fts5Token}
+
+// The generated parser function takes a 4th argument as follows:
+%extra_argument {Fts5Parse *pParse}
+
+// This code runs whenever there is a syntax error
+//
+%syntax_error {
+  UNUSED_PARAM(yymajor); /* Silence a compiler warning */
+  sqlite3Fts5ParseError(
+    pParse, "fts5: syntax error near \"%.*s\"",TOKEN.n,TOKEN.p
+  );
+}
+%stack_overflow {
+  sqlite3Fts5ParseError(pParse, "fts5: parser stack overflow");
+}
+
+// The name of the generated procedure that implements the parser
+// is as follows:
+%name sqlite3Fts5Parser
+
+// The following text is included near the beginning of the C source
+// code file that implements the parser.
+//
+%include {
+#include "fts5Int.h"
+#include "fts5parse.h"
+
+/*
+** Disable all error recovery processing in the parser push-down
+** automaton.
+*/
+#define YYNOERRORRECOVERY 1
+
+/*
+** Make yytestcase() the same as testcase()
+*/
+#define yytestcase(X) testcase(X)
+
+/*
+** Indicate that sqlite3ParserFree() will never be called with a null
+** pointer.
+*/
+#define YYPARSEFREENOTNULL 1
+
+/*
+** Alternative datatype for the argument to the malloc() routine passed
+** into sqlite3ParserAlloc().  The default is size_t.
+*/
+#define YYMALLOCARGTYPE  u64
+
+} // end %include
+
+%left OR.
+%left AND.
+%left NOT.
+%left TERM.
+%left COLON.
+
+input ::= expr(X). { sqlite3Fts5ParseFinished(pParse, X); }
+%destructor input { (void)pParse; }
+
+%type cnearset    {Fts5ExprNode*}
+%type expr        {Fts5ExprNode*}
+%type exprlist    {Fts5ExprNode*}
+%destructor cnearset { sqlite3Fts5ParseNodeFree($$); }
+%destructor expr     { sqlite3Fts5ParseNodeFree($$); }
+%destructor exprlist { sqlite3Fts5ParseNodeFree($$); }
+
+%type colset {Fts5Colset*}
+%destructor colset { sqlite3_free($$); }
+%type colsetlist {Fts5Colset*}
+%destructor colsetlist { sqlite3_free($$); }
+
+colset(A) ::= MINUS LCP colsetlist(X) RCP. { 
+    A = sqlite3Fts5ParseColsetInvert(pParse, X);
+}
+colset(A) ::= LCP colsetlist(X) RCP. { A = X; }
+colset(A) ::= STRING(X). {
+  A = sqlite3Fts5ParseColset(pParse, 0, &X);
+}
+colset(A) ::= MINUS STRING(X). {
+  A = sqlite3Fts5ParseColset(pParse, 0, &X);
+  A = sqlite3Fts5ParseColsetInvert(pParse, A);
+}
+
+colsetlist(A) ::= colsetlist(Y) STRING(X). { 
+  A = sqlite3Fts5ParseColset(pParse, Y, &X); }
+colsetlist(A) ::= STRING(X). { 
+  A = sqlite3Fts5ParseColset(pParse, 0, &X); 
+}
+
+expr(A) ::= expr(X) AND expr(Y). {
+  A = sqlite3Fts5ParseNode(pParse, FTS5_AND, X, Y, 0);
+}
+expr(A) ::= expr(X) OR expr(Y). {
+  A = sqlite3Fts5ParseNode(pParse, FTS5_OR, X, Y, 0);
+}
+expr(A) ::= expr(X) NOT expr(Y). {
+  A = sqlite3Fts5ParseNode(pParse, FTS5_NOT, X, Y, 0);
+}
+
+expr(A) ::= colset(X) COLON LP expr(Y) RP. {
+  sqlite3Fts5ParseSetColset(pParse, Y, X);
+  A = Y;
+}
+expr(A) ::= LP expr(X) RP. {A = X;}
+expr(A) ::= exprlist(X).   {A = X;}
+
+exprlist(A) ::= cnearset(X). {A = X;}
+exprlist(A) ::= exprlist(X) cnearset(Y). {
+  A = sqlite3Fts5ParseImplicitAnd(pParse, X, Y);
+}
+
+cnearset(A) ::= nearset(X). { 
+  A = sqlite3Fts5ParseNode(pParse, FTS5_STRING, 0, 0, X); 
+}
+cnearset(A) ::= colset(X) COLON nearset(Y). { 
+  A = sqlite3Fts5ParseNode(pParse, FTS5_STRING, 0, 0, Y); 
+  sqlite3Fts5ParseSetColset(pParse, A, X);
+}
+
+
+%type nearset     {Fts5ExprNearset*}
+%type nearphrases {Fts5ExprNearset*}
+%destructor nearset { sqlite3Fts5ParseNearsetFree($$); }
+%destructor nearphrases { sqlite3Fts5ParseNearsetFree($$); }
+
+nearset(A) ::= phrase(Y). { A = sqlite3Fts5ParseNearset(pParse, 0, Y); }
+nearset(A) ::= CARET phrase(Y). { 
+  sqlite3Fts5ParseSetCaret(Y);
+  A = sqlite3Fts5ParseNearset(pParse, 0, Y); 
+}
+nearset(A) ::= STRING(X) LP nearphrases(Y) neardist_opt(Z) RP. {
+  sqlite3Fts5ParseNear(pParse, &X);
+  sqlite3Fts5ParseSetDistance(pParse, Y, &Z);
+  A = Y;
+}
+
+nearphrases(A) ::= phrase(X). { 
+  A = sqlite3Fts5ParseNearset(pParse, 0, X); 
+}
+nearphrases(A) ::= nearphrases(X) phrase(Y). {
+  A = sqlite3Fts5ParseNearset(pParse, X, Y);
+}
+
+/*
+** The optional ", <integer>" at the end of the NEAR() arguments.
+*/
+neardist_opt(A) ::= . { A.p = 0; A.n = 0; }
+neardist_opt(A) ::= COMMA STRING(X). { A = X; }
+
+/*
+** A phrase. A set of primitives connected by "+" operators. Examples:
+**
+**     "the" + "quick brown" + fo *
+**     "the quick brown fo" *
+**     the+quick+brown+fo*
+*/
+%type phrase {Fts5ExprPhrase*}
+%destructor phrase { sqlite3Fts5ParsePhraseFree($$); }
+
+phrase(A) ::= phrase(X) PLUS STRING(Y) star_opt(Z). { 
+  A = sqlite3Fts5ParseTerm(pParse, X, &Y, Z);
+}
+phrase(A) ::= STRING(Y) star_opt(Z). { 
+  A = sqlite3Fts5ParseTerm(pParse, 0, &Y, Z);
+}
+
+/*
+** Optional "*" character.
+*/
+%type star_opt {int}
+star_opt(A) ::= STAR. { A = 1; }
+star_opt(A) ::= . { A = 0; }
diff --git a/ext/fts5/mkportersteps.tcl b/ext/fts5/mkportersteps.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..b6214c6bf73f8edf9600e26502a534e0e2a02a39
--- /dev/null
+++ b/ext/fts5/mkportersteps.tcl
@@ -0,0 +1,222 @@
+#
+# 2014 Jun 09
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#-------------------------------------------------------------------------
+#
+# This script generates the implementations of the following C functions,
+# which are part of the porter tokenizer implementation:
+#
+#   static int fts5PorterStep1B(char *aBuf, int *pnBuf);
+#   static int fts5PorterStep1B2(char *aBuf, int *pnBuf);
+#   static int fts5PorterStep2(char *aBuf, int *pnBuf);
+#   static int fts5PorterStep3(char *aBuf, int *pnBuf);
+#   static int fts5PorterStep4(char *aBuf, int *pnBuf);
+#
+
+set O(Step1B2) {
+  { at  {} ate 1 }
+  { bl  {} ble 1 }
+  { iz  {} ize 1 }
+}
+
+set O(Step1B) {
+  { "eed"  fts5Porter_MGt0  "ee" 0 }
+  { "ed"   fts5Porter_Vowel ""   1 }
+  { "ing"  fts5Porter_Vowel ""   1 }
+}
+
+set O(Step2) {
+  { "ational" fts5Porter_MGt0 "ate" } 
+  { "tional"  fts5Porter_MGt0 "tion" } 
+  { "enci"    fts5Porter_MGt0 "ence" } 
+  { "anci"    fts5Porter_MGt0 "ance" } 
+  { "izer"    fts5Porter_MGt0 "ize" } 
+  { "logi"    fts5Porter_MGt0 "log" }
+  { "bli"     fts5Porter_MGt0 "ble" }
+  { "alli"    fts5Porter_MGt0 "al" } 
+  { "entli"   fts5Porter_MGt0 "ent" } 
+  { "eli"     fts5Porter_MGt0 "e" } 
+  { "ousli"   fts5Porter_MGt0 "ous" } 
+  { "ization" fts5Porter_MGt0 "ize" } 
+  { "ation"   fts5Porter_MGt0 "ate" } 
+  { "ator"    fts5Porter_MGt0 "ate" } 
+  { "alism"   fts5Porter_MGt0 "al" } 
+  { "iveness" fts5Porter_MGt0 "ive" } 
+  { "fulness" fts5Porter_MGt0 "ful" } 
+  { "ousness" fts5Porter_MGt0 "ous" } 
+  { "aliti"   fts5Porter_MGt0 "al" } 
+  { "iviti"   fts5Porter_MGt0 "ive" } 
+  { "biliti"  fts5Porter_MGt0 "ble" } 
+}
+
+set O(Step3) {
+  { "icate" fts5Porter_MGt0 "ic" } 
+  { "ative" fts5Porter_MGt0 "" } 
+  { "alize" fts5Porter_MGt0 "al" } 
+  { "iciti" fts5Porter_MGt0 "ic" } 
+  { "ical" fts5Porter_MGt0 "ic" } 
+  { "ful" fts5Porter_MGt0 "" } 
+  { "ness" fts5Porter_MGt0 "" } 
+}
+
+set O(Step4) {
+  { "al" fts5Porter_MGt1 "" } 
+  { "ance" fts5Porter_MGt1 "" } 
+  { "ence" fts5Porter_MGt1 "" } 
+  { "er" fts5Porter_MGt1 "" } 
+  { "ic" fts5Porter_MGt1 "" } 
+  { "able" fts5Porter_MGt1 "" } 
+  { "ible" fts5Porter_MGt1 "" } 
+  { "ant" fts5Porter_MGt1 "" } 
+  { "ement" fts5Porter_MGt1 "" } 
+  { "ment" fts5Porter_MGt1 "" } 
+  { "ent" fts5Porter_MGt1 "" } 
+  { "ion" fts5Porter_MGt1_and_S_or_T "" } 
+  { "ou"  fts5Porter_MGt1 "" } 
+  { "ism" fts5Porter_MGt1 "" } 
+  { "ate" fts5Porter_MGt1 "" } 
+  { "iti" fts5Porter_MGt1 "" } 
+  { "ous" fts5Porter_MGt1 "" } 
+  { "ive" fts5Porter_MGt1 "" } 
+  { "ize" fts5Porter_MGt1 "" } 
+}
+
+proc sort_cb {lhs rhs} {
+  set L [string range [lindex $lhs 0] end-1 end-1]
+  set R [string range [lindex $rhs 0] end-1 end-1]
+  string compare $L $R
+}
+
+proc create_step_function {name data} {
+
+  set T(function) {
+static int fts5Porter${name}(char *aBuf, int *pnBuf){
+  int ret = 0;
+  int nBuf = *pnBuf;
+  switch( aBuf[nBuf-2] ){
+    ${switchbody}
+  }
+  return ret;
+}
+  }
+
+  set T(case) {
+    case '${k}': 
+      ${ifstmts}
+      break;
+  }
+
+  set T(if_0_0_0) {
+      if( ${match} ){
+        *pnBuf = nBuf - $n;
+      }
+  }
+  set T(if_1_0_0) {
+      if( ${match} ){
+        if( ${cond} ){
+          *pnBuf = nBuf - $n;
+        }
+      }
+  }
+  set T(if_0_1_0) {
+      if( ${match} ){
+        ${memcpy}
+        *pnBuf = nBuf - $n + $nRep;
+      }
+  }
+  set T(if_1_1_0) {
+      if( ${match} ){
+        if( ${cond} ){
+          ${memcpy}
+          *pnBuf = nBuf - $n + $nRep;
+        }
+      }
+  }
+  set T(if_1_0_1) {
+      if( ${match} ){
+        if( ${cond} ){
+          *pnBuf = nBuf - $n;
+          ret = 1;
+        }
+      }
+  }
+  set T(if_0_1_1) {
+      if( ${match} ){
+        ${memcpy}
+        *pnBuf = nBuf - $n + $nRep;
+        ret = 1;
+      }
+  }
+  set T(if_1_1_1) {
+      if( ${match} ){
+        if( ${cond} ){
+          ${memcpy}
+          *pnBuf = nBuf - $n + $nRep;
+          ret = 1;
+        }
+      }
+  }
+
+  set switchbody ""
+
+  foreach I $data {
+    set k [string range [lindex $I 0] end-1 end-1]
+    lappend aCase($k) $I
+  }
+  foreach k [lsort [array names aCase]] {
+    set ifstmts ""
+    foreach I $aCase($k) {
+      set zSuffix [lindex $I 0]         ;# Suffix text for this rule
+      set zRep [lindex $I 2]            ;# Replacement text for rule 
+      set xCond [lindex $I 1]           ;# Condition callback (or "")
+
+      set n [string length $zSuffix]
+      set nRep [string length $zRep]
+
+      set match "nBuf>$n && 0==memcmp(\"$zSuffix\", &aBuf\[nBuf-$n\], $n)"
+      set memcpy "memcpy(&aBuf\[nBuf-$n\], \"$zRep\", $nRep);"
+      set cond "${xCond}(aBuf, nBuf-$n)"
+
+      set bMemcpy [expr {$nRep>0}]
+      set bCond [expr {$xCond!=""}]
+      set bRet [expr {[llength $I]>3 && [lindex $I 3]}]
+
+      set t $T(if_${bCond}_${bMemcpy}_${bRet})
+      lappend ifstmts [string trim [subst -nocommands $t]]
+    }
+
+    set ifstmts [join $ifstmts "else "]
+
+    append switchbody [subst -nocommands $T(case)]
+  }
+
+
+  puts [subst -nocommands $T(function)]
+}
+
+
+puts [string trim {
+/**************************************************************************
+***************************************************************************
+** GENERATED CODE STARTS HERE (mkportersteps.tcl)
+*/
+}]
+foreach step [array names O] {
+  create_step_function $step $O($step)
+}
+puts [string trim {
+/* 
+** GENERATED CODE ENDS HERE (mkportersteps.tcl)
+***************************************************************************
+**************************************************************************/
+}]
+
+
+
diff --git a/ext/fts5/test/fts5_common.tcl b/ext/fts5/test/fts5_common.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..8ea87dbdd14a4adbc01626fd8a997f26de51fffc
--- /dev/null
+++ b/ext/fts5/test/fts5_common.tcl
@@ -0,0 +1,708 @@
+# 2014 Dec 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. .. test]
+}
+source $testdir/tester.tcl
+
+ifcapable !fts5 {
+  proc return_if_no_fts5 {} {
+    finish_test
+    return -code return
+  }
+  return
+} else {
+  proc return_if_no_fts5 {} {}
+}
+
+catch { 
+  sqlite3_fts5_may_be_corrupt 0 
+  reset_db
+}
+
+proc fts5_test_poslist {cmd} {
+  set res [list]
+  for {set i 0} {$i < [$cmd xInstCount]} {incr i} {
+    lappend res [string map {{ } .} [$cmd xInst $i]]
+  }
+  set res
+}
+
+proc fts5_test_poslist2 {cmd} {
+  set res [list]
+
+  for {set i 0} {$i < [$cmd xPhraseCount]} {incr i} {
+    $cmd xPhraseForeach $i c o {
+      lappend res $i.$c.$o
+    }
+  }
+
+  #set res
+  sort_poslist $res
+}
+
+proc fts5_test_insttoken {cmd iInst iToken} {
+  $cmd xInstToken $iInst $iToken
+}
+
+proc fts5_test_collist {cmd} {
+  set res [list]
+
+  for {set i 0} {$i < [$cmd xPhraseCount]} {incr i} {
+    $cmd xPhraseColumnForeach $i c { lappend res $i.$c }
+  }
+
+  set res
+}
+
+proc fts5_collist {cmd iPhrase} {
+  set res [list]
+  $cmd xPhraseColumnForeach $iPhrase c { lappend res $c }
+  set res
+}
+
+proc fts5_test_columnsize {cmd} {
+  set res [list]
+  for {set i 0} {$i < [$cmd xColumnCount]} {incr i} {
+    lappend res [$cmd xColumnSize $i]
+  }
+  set res
+}
+
+proc fts5_columntext {cmd iCol} {
+  $cmd xColumnText $iCol
+}
+proc fts5_columnlocale {cmd iCol} {
+  $cmd xColumnLocale $iCol
+}
+
+proc fts5_test_columntext {cmd} {
+  set res [list]
+  for {set i 0} {$i < [$cmd xColumnCount]} {incr i} {
+    lappend res [$cmd xColumnText $i]
+  }
+  set res
+}
+
+proc fts5_test_columnlocale {cmd} {
+  set res [list]
+  for {set i 0} {$i < [$cmd xColumnCount]} {incr i} {
+    lappend res [$cmd xColumnLocale $i]
+  }
+  set res
+}
+
+proc fts5_test_columntotalsize {cmd} {
+  set res [list]
+  for {set i 0} {$i < [$cmd xColumnCount]} {incr i} {
+    lappend res [$cmd xColumnTotalSize $i]
+  }
+  set res
+}
+
+proc test_append_token {varname token iStart iEnd} {
+  upvar $varname var
+  lappend var $token
+  return "SQLITE_OK"
+}
+proc fts5_test_tokenize {cmd} {
+  set res [list]
+  for {set i 0} {$i < [$cmd xColumnCount]} {incr i} {
+    set tokens [list]
+    $cmd xTokenize [$cmd xColumnText $i] [list test_append_token tokens]
+    lappend res $tokens
+  }
+  set res
+}
+
+proc fts5_test_rowcount {cmd} {
+  $cmd xRowCount
+}
+
+proc fts5_test_rowid {cmd} {
+  $cmd xRowid
+}
+
+proc test_queryphrase_cb {cnt cmd} {
+  upvar $cnt L 
+  for {set i 0} {$i < [$cmd xInstCount]} {incr i} {
+    foreach {ip ic io} [$cmd xInst $i] break
+    set A($ic) 1
+  }
+  foreach ic [array names A] {
+    lset L $ic [expr {[lindex $L $ic] + 1}]
+  }
+}
+proc fts5_test_queryphrase {cmd} {
+  set res [list]
+  for {set i 0} {$i < [$cmd xPhraseCount]} {incr i} {
+    set cnt [list]
+    for {set j 0} {$j < [$cmd xColumnCount]} {incr j} { lappend cnt 0 }
+    $cmd xQueryPhrase $i [list test_queryphrase_cb cnt]
+    lappend res $cnt
+  }
+  set res
+}
+
+proc fts5_queryphrase {cmd iPhrase} {
+  set cnt [list]
+  for {set j 0} {$j < [$cmd xColumnCount]} {incr j} { lappend cnt 0 }
+  $cmd xQueryPhrase $iPhrase [list test_queryphrase_cb cnt]
+  set cnt
+}
+
+proc fts5_test_phrasecount {cmd} {
+  $cmd xPhraseCount
+}
+
+proc fts5_test_all {cmd} {
+  set res [list]
+  lappend res columnsize      [fts5_test_columnsize $cmd]
+  lappend res columntext      [fts5_test_columntext $cmd]
+  lappend res columntotalsize [fts5_test_columntotalsize $cmd]
+  lappend res poslist         [fts5_test_poslist $cmd]
+  lappend res tokenize        [fts5_test_tokenize $cmd]
+  lappend res rowcount        [fts5_test_rowcount $cmd]
+  set res
+}
+
+proc fts5_aux_test_functions {db} {
+  foreach f {
+    fts5_test_columnsize
+    fts5_test_columntext
+    fts5_test_columnlocale
+    fts5_test_columntotalsize
+    fts5_test_poslist
+    fts5_test_poslist2
+    fts5_test_collist
+    fts5_test_insttoken
+    fts5_test_tokenize
+    fts5_test_rowcount
+    fts5_test_rowid
+    fts5_test_all
+
+    fts5_test_queryphrase
+    fts5_test_phrasecount
+    fts5_columntext
+    fts5_columnlocale
+    fts5_queryphrase
+    fts5_collist
+  } {
+    sqlite3_fts5_create_function $db $f $f
+  }
+}
+
+proc fts5_segcount {tbl} {
+  set N 0
+  foreach n [fts5_level_segs $tbl] { incr N $n }
+  set N
+}
+
+proc fts5_level_segs {tbl} {
+  set sql "SELECT fts5_decode(rowid,block) aS r FROM ${tbl}_data WHERE rowid=10"
+  set ret [list]
+  foreach L [lrange [db one $sql] 1 end] {
+    lappend ret [expr [llength $L] - 3]
+  }
+  set ret
+} 
+
+proc fts5_level_segids {tbl} {
+  set sql "SELECT fts5_decode(rowid,block) aS r FROM ${tbl}_data WHERE rowid=10"
+  set ret [list]
+  foreach L [lrange [db one $sql] 1 end] {
+    set lvl [list]
+    foreach S [lrange $L 3 end] {
+      regexp {id=([1234567890]*)} $S -> segid
+      lappend lvl $segid
+    }
+    lappend ret $lvl
+  }
+  set ret
+}
+
+proc fts5_rnddoc {n} {
+  set map [list 0 a  1 b  2 c  3 d  4 e  5 f  6 g  7 h  8 i  9 j]
+  set doc [list]
+  for {set i 0} {$i < $n} {incr i} {
+    lappend doc "x[string map $map [format %.3d [expr int(rand()*1000)]]]"
+  }
+  set doc
+}
+
+#-------------------------------------------------------------------------
+# Usage:
+#
+#   nearset aCol ?-pc VARNAME? ?-near N? ?-col C? -- phrase1 phrase2...
+#
+# This command is used to test if a document (set of column values) matches
+# the logical equivalent of a single FTS5 NEAR() clump and, if so, return
+# the equivalent of an FTS5 position list.
+#
+# Parameter $aCol is passed a list of the column values for the document
+# to test. Parameters $phrase1 and so on are the phrases.
+#
+# The result is a list of phrase hits. Each phrase hit is formatted as
+# three integers separated by "." characters, in the following format:
+#
+#   <phrase number> . <column number> . <token offset>
+#
+# Options:
+#
+#   -near N        (NEAR distance. Default 10)
+#   -col  C        (List of column indexes to match against)
+#   -pc   VARNAME  (variable in caller frame to use for phrase numbering)
+#   -dict VARNAME  (array in caller frame to use for synonyms)
+#
+proc nearset {aCol args} {
+
+  # Process the command line options.
+  #
+  set O(-near) 10
+  set O(-col)  {}
+  set O(-pc)   ""
+  set O(-dict) ""
+
+  set nOpt [lsearch -exact $args --]
+  if {$nOpt<0} { error "no -- option" }
+
+  # Set $lPhrase to be a list of phrases. $nPhrase its length.
+  set lPhrase [lrange $args [expr $nOpt+1] end]
+  set nPhrase [llength $lPhrase]
+
+  foreach {k v} [lrange $args 0 [expr $nOpt-1]] {
+    if {[info exists O($k)]==0} { error "unrecognized option $k" }
+    set O($k) $v
+  }
+
+  if {$O(-pc) == ""} {
+    set counter 0
+  } else {
+    upvar $O(-pc) counter
+  }
+
+  if {$O(-dict)!=""} { upvar $O(-dict) aDict }
+
+  for {set j 0} {$j < [llength $aCol]} {incr j} {
+    for {set i 0} {$i < $nPhrase} {incr i} { 
+      set A($j,$i) [list]
+    }
+  }
+
+  # Loop through each column of the current row.
+  for {set iCol 0} {$iCol < [llength $aCol]} {incr iCol} {
+
+    # If there is a column filter, test whether this column is excluded. If
+    # so, skip to the next iteration of this loop. Otherwise, set zCol to the
+    # column value and nToken to the number of tokens that comprise it.
+    if {$O(-col)!="" && [lsearch $O(-col) $iCol]<0} continue
+    set zCol [lindex $aCol $iCol]
+    set nToken [llength $zCol]
+
+    # Each iteration of the following loop searches a substring of the 
+    # column value for phrase matches. The last token of the substring
+    # is token $iLast of the column value. The first token is:
+    #
+    #   iFirst = ($iLast - $O(-near) - 1)
+    #
+    # where $sz is the length of the phrase being searched for. A phrase 
+    # counts as matching the substring if its first token lies on or before
+    # $iLast and its last token on or after $iFirst.
+    #
+    # For example, if the query is "NEAR(a+b c, 2)" and the column value:
+    #
+    #   "x x x x A B x x C x"
+    #    0 1 2 3 4 5 6 7 8 9"
+    #
+    # when (iLast==8 && iFirst=5) the range will contain both phrases and
+    # so both instances can be added to the output poslists.
+    #
+    set iLast [expr $O(-near) >= $nToken ? $nToken - 1 : $O(-near)]
+    for { } {$iLast < $nToken} {incr iLast} {
+
+      catch { array unset B }
+      
+      for {set iPhrase 0} {$iPhrase<$nPhrase} {incr iPhrase} {
+        set p [lindex $lPhrase $iPhrase]
+        set nPm1 [expr {[llength $p] - 1}]
+        set iFirst [expr $iLast - $O(-near) - [llength $p]]
+
+        for {set i $iFirst} {$i <= $iLast} {incr i} {
+          set lCand [lrange $zCol $i [expr $i+$nPm1]]
+          set bMatch 1
+          foreach tok $p term $lCand {
+            if {[nearset_match aDict $tok $term]==0} { set bMatch 0 ; break }
+          }
+          if {$bMatch} { lappend B($iPhrase) $i }
+        }
+
+        if {![info exists B($iPhrase)]} break
+      }
+
+      if {$iPhrase==$nPhrase} {
+        for {set iPhrase 0} {$iPhrase<$nPhrase} {incr iPhrase} {
+          set A($iCol,$iPhrase) [concat $A($iCol,$iPhrase) $B($iPhrase)]
+          set A($iCol,$iPhrase) [lsort -integer -uniq $A($iCol,$iPhrase)]
+        }
+      }
+    }
+  }
+
+  set res [list]
+  #puts [array names A]
+
+  for {set iPhrase 0} {$iPhrase<$nPhrase} {incr iPhrase} {
+    for {set iCol 0} {$iCol < [llength $aCol]} {incr iCol} {
+      foreach a $A($iCol,$iPhrase) {
+        lappend res "$counter.$iCol.$a"
+      }
+    }
+    incr counter
+  }
+
+  #puts "$aCol -> $res"
+  sort_poslist $res
+}
+
+proc nearset_match {aDictVar tok term} {
+  if {[string match $tok $term]} { return 1 }
+
+  upvar $aDictVar aDict
+  if {[info exists aDict($tok)]} {
+    foreach s $aDict($tok) {
+      if {[string match $s $term]} { return 1 }
+    }
+  }
+  return 0;
+}
+
+#-------------------------------------------------------------------------
+# Usage:
+#
+#   sort_poslist LIST
+#
+# Sort a position list of the type returned by command [nearset]
+#
+proc sort_poslist {L} {
+  lsort -command instcompare $L
+}
+proc instcompare {lhs rhs} {
+  foreach {p1 c1 o1} [split $lhs .] {}
+  foreach {p2 c2 o2} [split $rhs .] {}
+
+  set res [expr $c1 - $c2]
+  if {$res==0} { set res [expr $o1 - $o2] }
+  if {$res==0} { set res [expr $p1 - $p2] }
+
+  return $res
+}
+
+#-------------------------------------------------------------------------
+# Logical operators used by the commands returned by fts5_tcl_expr().
+#
+proc AND {args} {
+  foreach a $args {
+    if {[llength $a]==0} { return [list] }
+  }
+  sort_poslist [concat {*}$args]
+}
+proc OR {args} {
+  sort_poslist [concat {*}$args]
+}
+proc NOT {a b} {
+  if {[llength $b]>0} { return [list] }
+  return $a
+}
+
+#-------------------------------------------------------------------------
+# This command is similar to [split], except that it also provides the
+# start and end offsets of each token. For example:
+#
+#   [fts5_tokenize_split "abc d ef"] -> {abc 0 3 d 4 5 ef 6 8}
+#
+
+proc gobble_whitespace {textvar} {
+  upvar $textvar t
+  regexp {([ ]*)(.*)} $t -> space t
+  return [string length $space]
+}
+
+proc gobble_text {textvar wordvar} {
+  upvar $textvar t
+  upvar $wordvar w
+  regexp {([^ ]*)(.*)} $t -> w t
+  return [string length $w]
+}
+
+proc fts5_tokenize_split {text} {
+  set token ""
+  set ret [list]
+  set iOff [gobble_whitespace text]
+  while {[set nToken [gobble_text text word]]} {
+    lappend ret $word $iOff [expr $iOff+$nToken]
+    incr iOff $nToken
+    incr iOff [gobble_whitespace text]
+  }
+
+  set ret
+}
+
+#-------------------------------------------------------------------------
+#
+proc foreach_detail_mode {prefix script} {
+  set saved $::testprefix
+  foreach d [list full col none] {
+    set s [string map [list %DETAIL% $d] $script]
+    set ::detail $d
+    set ::testprefix "$prefix-$d"
+    reset_db
+    uplevel $s
+    unset ::detail
+  }
+  set ::testprefix $saved
+}
+
+proc detail_check {} {
+  if {$::detail != "none" && $::detail!="full" && $::detail!="col"} {
+    error "not in foreach_detail_mode {...} block"
+  }
+}
+proc detail_is_none {} { detail_check ; expr {$::detail == "none"} }
+proc detail_is_col {}  { detail_check ; expr {$::detail == "col" } }
+proc detail_is_full {} { detail_check ; expr {$::detail == "full"} }
+
+proc foreach_tokenizer_mode {prefix script} {
+  set saved $::testprefix
+  foreach {d mapping} {
+    ""              {}
+    "-origintext"   {, tokenize="origintext unicode61", tokendata=1}
+  } {
+    set s [string map [list %TOKENIZER% $mapping] $script]
+    set ::testprefix "$prefix$d"
+    reset_db
+    sqlite3_fts5_register_origintext db
+    uplevel $s
+  }
+  set ::testprefix $saved
+}
+
+#-------------------------------------------------------------------------
+# Convert a poslist of the type returned by fts5_test_poslist() to a 
+# collist as returned by fts5_test_collist().
+#
+proc fts5_poslist2collist {poslist} {
+  set res [list]
+  foreach h $poslist {
+    regexp {(.*)\.[1234567890]+} $h -> cand
+    lappend res $cand
+  }
+  set res [lsort -command fts5_collist_elem_compare -unique $res]
+  return $res
+}
+
+# Comparison function used by fts5_poslist2collist to sort collist entries.
+proc fts5_collist_elem_compare {a b} {
+  foreach {a1 a2} [split $a .] {}
+  foreach {b1 b2} [split $b .] {}
+
+  if {$a1==$b1} { return [expr $a2 - $b2] }
+  return [expr $a1 - $b1]
+}
+
+
+#--------------------------------------------------------------------------
+# Construct and return a tcl list equivalent to that returned by the SQL
+# query executed against database handle [db]:
+#
+#   SELECT 
+#     rowid, 
+#     fts5_test_poslist($tbl),
+#     fts5_test_collist($tbl) 
+#   FROM $tbl('$expr')
+#   ORDER BY rowid $order;
+#
+proc fts5_query_data {expr tbl {order ASC} {aDictVar ""}} {
+
+  # Figure out the set of columns in the FTS5 table. This routine does
+  # not handle tables with UNINDEXED columns, but if it did, it would
+  # have to be here.
+  db eval "PRAGMA table_info = $tbl" x { lappend lCols $x(name) }
+
+  set d ""
+  if {$aDictVar != ""} {
+    upvar $aDictVar aDict
+    set d aDict
+  }
+
+  set cols ""
+  foreach e $lCols { append cols ", '$e'" }
+  set tclexpr [db one [subst -novar {
+    SELECT fts5_expr_tcl( $expr, 'nearset $cols -dict $d -pc ::pc' [set cols] )
+  }]]
+
+  set res [list]
+  db eval "SELECT rowid, * FROM $tbl ORDER BY rowid $order" x {
+    set cols [list]
+    foreach col $lCols { lappend cols $x($col) }
+    
+    set ::pc 0
+    set rowdata [eval $tclexpr]
+    if {$rowdata != ""} { 
+      lappend res $x(rowid) $rowdata [fts5_poslist2collist $rowdata]
+    }
+  }
+
+  set res
+}
+
+#-------------------------------------------------------------------------
+# Similar to [fts5_query_data], but omit the collist field.
+#
+proc fts5_poslist_data {expr tbl {order ASC} {aDictVar ""}} {
+  set res [list]
+
+  if {$aDictVar!=""} {
+    upvar $aDictVar aDict
+    set dict aDict
+  } else {
+    set dict ""
+  }
+
+  foreach {rowid poslist collist} [fts5_query_data $expr $tbl $order $dict] {
+    lappend res $rowid $poslist
+  }
+  set res
+}
+
+proc fts5_collist_data {expr tbl {order ASC} {aDictVar ""}} {
+  set res [list]
+
+  if {$aDictVar!=""} {
+    upvar $aDictVar aDict
+    set dict aDict
+  } else {
+    set dict ""
+  }
+
+  foreach {rowid poslist collist} [fts5_query_data $expr $tbl $order $dict] {
+    lappend res $rowid $collist
+  }
+  set res
+}
+
+#-------------------------------------------------------------------------
+#
+
+# This command will only work inside a [foreach_detail_mode] block. It tests
+# whether or not expression $expr run on FTS5 table $tbl is supported by
+# the current mode. If so, 1 is returned. If not, 0.
+#
+#   detail=full    (all queries supported)
+#   detail=col     (all but phrase queries and NEAR queries)
+#   detail=none    (all but phrase queries, NEAR queries, and column filters)
+#
+proc fts5_expr_ok {expr tbl} {
+
+  if {![detail_is_full]} {
+    set nearset "nearset_rc"
+    if {[detail_is_col]} { set nearset "nearset_rf" }
+
+    set ::expr_not_ok 0
+    db eval "PRAGMA table_info = $tbl" x { lappend lCols $x(name) }
+
+    set cols ""
+    foreach e $lCols { append cols ", '$e'" }
+    set ::pc 0
+    set tclexpr [db one [subst -novar {
+      SELECT fts5_expr_tcl( $expr, '[set nearset] $cols -pc ::pc' [set cols] )
+    }]]
+    eval $tclexpr
+    if {$::expr_not_ok} { return 0 }
+  }
+
+  return 1
+}
+
+# Helper for [fts5_expr_ok]
+proc nearset_rf {aCol args} {
+  set idx [lsearch -exact $args --]
+  if {$idx != [llength $args]-2 || [llength [lindex $args end]]!=1} {
+    set ::expr_not_ok 1
+  }
+  list
+}
+
+# Helper for [fts5_expr_ok]
+proc nearset_rc {aCol args} {
+  nearset_rf $aCol {*}$args
+  if {[lsearch $args -col]>=0} { 
+    set ::expr_not_ok 1
+  }
+  list
+}
+
+proc dump {tname} {
+  execsql_pp "SELECT * FROM ${tname}_idx"
+  execsql_pp "SELECT id, quote(block), fts5_decode(id,block) FROM ${tname}_data"
+}
+
+#-------------------------------------------------------------------------
+# Code for a simple Tcl tokenizer that supports synonyms at query time.
+#
+proc tclnum_tokenize {mode tflags text} {
+  foreach {w iStart iEnd} [fts5_tokenize_split $text] {
+    sqlite3_fts5_token $w $iStart $iEnd
+    if {$tflags == $mode && [info exists ::tclnum_syn($w)]} {
+      foreach s $::tclnum_syn($w)  { sqlite3_fts5_token -colo $s $iStart $iEnd }
+    }
+  }
+}
+
+proc tclnum_create {args} {
+  set mode query
+  if {[llength $args]} {
+    set mode [lindex $args 0]
+  }
+  if {$mode != "query" && $mode != "document"} { error "bad mode: $mode" }
+  return [list tclnum_tokenize $mode]
+}
+
+proc fts5_tclnum_register {db} {
+  foreach SYNDICT {
+    {zero  0}
+    {one   1 i}
+    {two   2 ii}
+    {three 3 iii}
+    {four  4 iv}
+    {five  5 v}
+    {six   6 vi}
+    {seven 7 vii}
+    {eight 8 viii}
+    {nine  9 ix}
+
+    {a1 a2 a3 a4 a5 a6 a7 a8 a9}
+    {b1 b2 b3 b4 b5 b6 b7 b8 b9}
+    {c1 c2 c3 c4 c5 c6 c7 c8 c9}
+  } {
+    foreach s $SYNDICT {
+      set o [list]
+      foreach x $SYNDICT {if {$x!=$s} {lappend o $x}}
+      set ::tclnum_syn($s) $o
+    }
+  }
+  sqlite3_fts5_create_tokenizer db tclnum tclnum_create
+}
+#
+# End of tokenizer code.
+#-------------------------------------------------------------------------
+
diff --git a/ext/fts5/test/fts5aa.test b/ext/fts5/test/fts5aa.test
new file mode 100644
index 0000000000000000000000000000000000000000..bcad9e72411b9d73466230414cc346eafefeaca8
--- /dev/null
+++ b/ext/fts5/test/fts5aa.test
@@ -0,0 +1,664 @@
+# 2014 June 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS5 module.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5aa
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+foreach_detail_mode $::testprefix {
+foreach_tokenizer_mode $::testprefix {
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, b, c);
+  SELECT name, sql FROM sqlite_master;
+} {
+  t1 {CREATE VIRTUAL TABLE t1 USING fts5(a, b, c)}
+  t1_data {CREATE TABLE 't1_data'(id INTEGER PRIMARY KEY, block BLOB)}
+  t1_idx {CREATE TABLE 't1_idx'(segid, term, pgno, PRIMARY KEY(segid, term)) WITHOUT ROWID}
+  t1_content {CREATE TABLE 't1_content'(id INTEGER PRIMARY KEY, c0, c1, c2)}
+  t1_docsize {CREATE TABLE 't1_docsize'(id INTEGER PRIMARY KEY, sz BLOB)}
+  t1_config {CREATE TABLE 't1_config'(k PRIMARY KEY, v) WITHOUT ROWID}
+}
+
+do_execsql_test 1.1 {
+  DROP TABLE t1;
+  SELECT name, sql FROM sqlite_master;
+} {}
+
+#-------------------------------------------------------------------------
+#
+
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x, y, detail=%DETAIL% %TOKENIZER%);
+}
+do_execsql_test 2.1 {
+  INSERT INTO t1 VALUES('a b c', 'd e f');
+}
+
+do_test 2.2 {
+  execsql { SELECT fts5_decode(id, block) FROM t1_data WHERE id==10 }
+} {/{{structure} {lvl=0 nMerge=0 nSeg=1 {id=[0123456789]* leaves=1..1}}}/}
+
+foreach w {a b c d e f} {
+  do_execsql_test 2.3.$w.asc {
+    SELECT rowid FROM t1 WHERE t1 MATCH $w;
+  } {1}
+  do_execsql_test 2.3.$w.desc {
+    SELECT rowid FROM t1 WHERE t1 MATCH $w ORDER BY rowid DESC;
+  } {1}
+}
+
+do_execsql_test 2.4 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+  PRAGMA integrity_check;
+  PRAGMA integrity_check(t1);
+} {ok ok}
+
+
+#-------------------------------------------------------------------------
+#
+reset_db
+sqlite3_fts5_register_origintext db
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x,y, detail=%DETAIL% %TOKENIZER%);
+}
+foreach {i x y} {
+   1  {g f d b f} {h h e i a}
+   2  {f i g j e} {i j c f f}
+   3  {e e i f a} {e h f d f}
+   4  {h j f j i} {h a c f j}
+   5  {d b j c g} {f e i b e}
+   6  {a j a e e} {j d f d e}
+   7  {g i j c h} {j d h c a}
+   8  {j j i d d} {e e d f b}
+   9  {c j j d c} {h j i f g}
+   10 {b f h i a} {c f b b j}
+} {
+  do_execsql_test 3.$i.1 { INSERT INTO t1 VALUES($x, $y) }
+  do_execsql_test 3.$i.2 { INSERT INTO t1(t1) VALUES('integrity-check') }
+  do_execsql_test 3.$i.3 { PRAGMA integrity_check(t1) } ok
+  if {[set_test_counter errors]} break
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+sqlite3_fts5_register_origintext db
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x,y, detail=%DETAIL% %TOKENIZER%);
+  INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
+}
+foreach {i x y} {
+   1  {g f d b f} {h h e i a}
+   2  {f i g j e} {i j c f f}
+   3  {e e i f a} {e h f d f}
+   4  {h j f j i} {h a c f j}
+   5  {d b j c g} {f e i b e}
+   6  {a j a e e} {j d f d e}
+   7  {g i j c h} {j d h c a}
+   8  {j j i d d} {e e d f b}
+   9  {c j j d c} {h j i f g}
+   10 {b f h i a} {c f b b j}
+} {
+  do_execsql_test 4.$i.1 { INSERT INTO t1 VALUES($x, $y) }
+  do_execsql_test 4.$i.2 { INSERT INTO t1(t1) VALUES('integrity-check') }
+  if {[set_test_counter errors]} break
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+sqlite3_fts5_register_origintext db
+do_execsql_test 5.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x,y, detail=%DETAIL% %TOKENIZER%);
+  INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
+}
+foreach {i x y} {
+   1  {dd abc abc abc abcde} {aaa dd ddd ddd aab}
+   2  {dd aab d aaa b} {abcde c aaa aaa aaa}
+   3  {abcde dd b b dd} {abc abc d abc ddddd}
+   4  {aaa abcde dddd dddd abcde} {abc b b abcde abc}
+   5  {aab dddd d dddd c} {ddd abcde dddd abcde c}
+   6  {ddd dd b aab abcde} {d ddddd dddd c abc}
+   7  {d ddddd ddd c abcde} {c aab d abcde ddd}
+   8  {abcde aaa aab c c} {ddd c dddd b aaa}
+   9  {abcde aab ddddd c aab} {dddd dddd b c dd}
+   10 {ddd abcde dddd dd c} {dddd c c d abcde}
+} {
+  do_execsql_test 5.$i.1 { INSERT INTO t1 VALUES($x, $y) }
+  do_execsql_test 5.$i.2 { PRAGMA integrity_check(t1) } ok
+  if {[set_test_counter errors]} break
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+sqlite3_fts5_register_origintext db
+do_execsql_test 6.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x,y, detail=%DETAIL% %TOKENIZER%);
+  INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
+}
+
+do_execsql_test 6.1 {
+  INSERT  INTO t1(rowid, x, y) VALUES(22, 'a b c', 'c b a');
+  REPLACE INTO t1(rowid, x, y) VALUES(22, 'd e f', 'f e d');
+}
+
+do_execsql_test 6.2 {
+  INSERT INTO t1(t1) VALUES('integrity-check') 
+}
+
+do_execsql_test 6.3 {
+  REPLACE INTO t1(rowid, x, y) VALUES('22', 'l l l', 'l l l');
+}
+
+do_execsql_test 6.4 {
+  REPLACE INTO t1(x, y) VALUES('x y z', 'x y z');
+}
+
+do_execsql_test 6.5 {
+  INSERT INTO t1(t1) VALUES('integrity-check') 
+}
+
+do_execsql_test 6.6 {
+  SELECT rowid, * FROM t1;
+} {
+  22 {l l l} {l l l}
+  23 {x y z} {x y z}
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+sqlite3_fts5_register_origintext db
+expr srand(0)
+do_execsql_test 7.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x,y,z);
+  INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
+}
+
+proc doc {} {
+  set v [list aaa aab abc abcde b c d dd ddd dddd ddddd]
+  set ret [list]
+  for {set j 0} {$j < 20} {incr j} {
+    lappend ret [lindex $v [expr int(rand()*[llength $v])]]
+  }
+  return $ret
+}
+
+proc dump_structure {} {
+  db eval {SELECT fts5_decode(id, block) AS t FROM t1_data WHERE id=10} {
+    foreach lvl [lrange $t 1 end] {
+      set seg [string repeat . [expr [llength $lvl]-2]]
+      puts "[lrange $lvl 0 1] $seg"
+    }
+  }
+}
+
+for {set i 1} {$i <= 10} {incr i} {
+  do_test 7.$i {
+    for {set j 0} {$j < 10} {incr j} {
+      set x [doc]
+      set y [doc]
+      set z [doc]
+      set rowid [expr int(rand() * 100)]
+      execsql { REPLACE INTO t1(rowid,x,y,z) VALUES($rowid, $x, $y, $z) }
+    }
+    execsql { INSERT INTO t1(t1) VALUES('integrity-check'); }
+  } {}
+  if {[set_test_counter errors]} break
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+sqlite3_fts5_register_origintext db
+do_execsql_test 8.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x, prefix="1,2,3");
+  INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
+}
+
+do_execsql_test 8.1 {
+  INSERT INTO t1 VALUES('the quick brown fox');
+  INSERT INTO t1(t1) VALUES('integrity-check');
+}
+
+
+#-------------------------------------------------------------------------
+#
+reset_db
+sqlite3_fts5_register_origintext db
+
+expr srand(0)
+
+do_execsql_test 9.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x,y,z, prefix="1,2,3");
+  INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
+}
+
+proc doc {} {
+  set v [list aaa aab abc abcde b c d dd ddd dddd ddddd]
+  set ret [list]
+  for {set j 0} {$j < 20} {incr j} {
+    lappend ret [lindex $v [expr int(rand()*[llength $v])]]
+  }
+  return $ret
+}
+
+proc dump_structure {} {
+  db eval {SELECT fts5_decode(id, block) AS t FROM t1_data WHERE id=10} {
+    foreach lvl [lrange $t 1 end] {
+      set seg [string repeat . [expr [llength $lvl]-2]]
+      puts "[lrange $lvl 0 1] $seg"
+    }
+  }
+}
+
+for {set i 1} {$i <= 10} {incr i} {
+  do_test 9.$i {
+    for {set j 0} {$j < 100} {incr j} {
+      set x [doc]
+      set y [doc]
+      set z [doc]
+      set rowid [expr int(rand() * 100)]
+      execsql { REPLACE INTO t1(rowid,x,y,z) VALUES($rowid, $x, $y, $z) }
+    }
+    execsql { INSERT INTO t1(t1) VALUES('integrity-check'); }
+  } {}
+  if {[set_test_counter errors]} break
+}
+
+
+#-------------------------------------------------------------------------
+#
+reset_db
+sqlite3_fts5_register_origintext db
+do_execsql_test 10.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x,y, detail=%DETAIL% %TOKENIZER%);
+}
+set d10 {
+   1  {g f d b f} {h h e i a}
+   2  {f i g j e} {i j c f f}
+   3  {e e i f a} {e h f d f}
+   4  {h j f j i} {h a c f j}
+   5  {d b j c g} {f e i b e}
+   6  {a j a e e} {j d f d e}
+   7  {g i j c h} {j d h c a}
+   8  {j j i d d} {e e d f b}
+   9  {c j j d c} {h j i f g}
+  10  {b f h i a} {c f b b j}
+}
+foreach {rowid x y} $d10 {
+  do_execsql_test 10.1.$rowid.1 { INSERT INTO t1 VALUES($x, $y) }
+  do_execsql_test 10.1.$rowid.2 { INSERT INTO t1(t1) VALUES('integrity-check') }
+}
+foreach rowid {5 9 8 1 2 4 10 7 3 5 6} {
+  do_execsql_test 10.2.$rowid.1 { DELETE FROM t1 WHERE rowid = $rowid }
+  do_execsql_test 10.2.$rowid.2 { INSERT INTO t1(t1) VALUES('integrity-check') }
+}
+foreach {rowid x y} $d10 {
+  do_execsql_test 10.3.$rowid.1 { INSERT INTO t1 VALUES($x, $y) }
+  do_execsql_test 10.3.$rowid.2 { INSERT INTO t1(t1) VALUES('integrity-check') }
+}
+
+do_execsql_test 10.4.1 { DELETE FROM t1 }
+do_execsql_test 10.4.2 { INSERT INTO t1(t1) VALUES('integrity-check') }
+
+#-------------------------------------------------------------------------
+#
+do_catchsql_test 11.1 {
+  CREATE VIRTUAL TABLE t2 USING fts5(a, b, c, rank, detail=%DETAIL% %TOKENIZER%);
+} {1 {reserved fts5 column name: rank}}
+do_catchsql_test 11.2 {
+  CREATE VIRTUAL TABLE rank USING fts5(a, b, c, detail=%DETAIL% %TOKENIZER%);
+} {1 {reserved fts5 table name: rank}}
+do_catchsql_test 11.3 {
+  CREATE VIRTUAL TABLE t2 USING fts5(a, b, c, rowid, detail=%DETAIL% %TOKENIZER%);
+} {1 {reserved fts5 column name: rowid}}
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test 12.1 {
+  CREATE VIRTUAL TABLE t2 USING fts5(x,y, detail=%DETAIL% %TOKENIZER%);
+} {}
+
+do_catchsql_test 12.2 {
+  SELECT t2 FROM t2 WHERE t2 MATCH '*stuff'
+} {1 {unknown special query: stuff}}
+
+do_test 12.3 {
+  set res [db eval { SELECT t2 FROM t2 WHERE t2 MATCH '* reads ' }]
+  string is integer $res
+} {1}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+sqlite3_fts5_register_origintext db
+do_execsql_test 13.1 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x, detail=%DETAIL% %TOKENIZER%);
+  INSERT INTO t1(rowid, x) VALUES(1, 'o n e'), (2, 't w o');
+} {}
+
+do_execsql_test 13.2 {
+  SELECT rowid FROM t1 WHERE t1 MATCH 'o';
+} {1 2}
+
+do_execsql_test 13.4 {
+  DELETE FROM t1 WHERE rowid=2;
+} {}
+
+do_execsql_test 13.5 {
+  SELECT rowid FROM t1 WHERE t1 MATCH 'o';
+} {1}
+
+do_execsql_test 13.6 {
+  SELECT rowid FROM t1 WHERE t1 MATCH '""';
+} {}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+sqlite3_fts5_register_origintext db
+do_execsql_test 14.1 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x, y, detail=%DETAIL% %TOKENIZER%);
+  INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
+  WITH d(x,y) AS (
+    SELECT NULL, 'xyz xyz xyz xyz xyz xyz'
+    UNION ALL 
+    SELECT NULL, 'xyz xyz xyz xyz xyz xyz' FROM d
+  )
+  INSERT INTO t1 SELECT * FROM d LIMIT 200;
+}
+
+do_execsql_test 15.x {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+}
+
+do_test 14.2 {
+  set nRow 0
+  db eval { SELECT * FROM t1 WHERE t1 MATCH 'xyz' } {
+    db eval {
+      BEGIN;
+        CREATE TABLE t2(a, b);
+      ROLLBACK;
+    }
+    incr nRow
+  }
+  set nRow
+} {200}
+
+do_test 14.3 {
+  set nRow 0
+  db eval { BEGIN; }
+  db eval { SELECT * FROM t1 WHERE t1 MATCH 'xyz' } {
+    db eval {
+      SAVEPOINT aaa;
+        CREATE TABLE t2(a, b);
+      ROLLBACK TO aaa;
+      RELEASE aaa;
+    }
+    incr nRow
+  }
+  set nRow
+} {200}
+
+do_execsql_test 15.0 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+}
+sqlite3_db_config db DEFENSIVE 0
+do_execsql_test 15.1 {
+  UPDATE t1_content SET c1 = 'xyz xyz xyz xyz xyz abc' WHERE rowid = 1;
+}
+do_catchsql_test 15.2 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test 16.1 {
+  CREATE VIRTUAL TABLE n1 USING fts5(a);
+  INSERT INTO n1 VALUES('a b c d');
+}
+
+proc funk {} {
+  db eval { UPDATE n1_config SET v=50 WHERE k='version' }
+  set fd [db incrblob main n1_data block 10]
+  fconfigure $fd -translation binary
+#  puts -nonewline $fd "\x44\x45"
+  close $fd
+}
+db func funk funk
+
+# This test case corrupts the structure record within the first invocation
+# of function funk(). Which used to cause the bm25() function to throw an
+# exception. But since bm25() can now used the cached structure record,
+# it never sees the corruption introduced by funk() and so the following 
+# statement no longer fails.
+#
+do_catchsql_test 16.2 {
+  SELECT funk(), format('%g',bm25(n1)), funk() FROM n1 WHERE n1 MATCH 'a+b+c+d'
+} {0 {{} -1e-06 {}}}
+# {1 {SQL logic error}}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+sqlite3_fts5_register_origintext db
+do_execsql_test 17.1 {
+  CREATE VIRTUAL TABLE b2 USING fts5(x, detail=%DETAIL% %TOKENIZER%);
+  INSERT INTO b2 VALUES('a');
+  INSERT INTO b2 VALUES('b');
+  INSERT INTO b2 VALUES('c');
+}
+
+do_test 17.2 {
+  set res [list]
+  db eval { SELECT * FROM b2 ORDER BY rowid ASC } {
+    lappend res [execsql { SELECT * FROM b2 ORDER BY rowid ASC }]
+  }
+  set res
+} {{a b c} {a b c} {a b c}}
+
+if {[string match n* %DETAIL%]==0} {
+  reset_db
+  sqlite3_fts5_register_origintext db
+  do_execsql_test 17.3 {
+    CREATE VIRTUAL TABLE c2 USING fts5(x, y, detail=%DETAIL% %TOKENIZER%);
+    INSERT INTO c2 VALUES('x x x', 'x x x');
+    SELECT rowid FROM c2 WHERE c2 MATCH 'y:x';
+  } {1}
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+sqlite3_fts5_register_origintext db
+do_execsql_test 17.1 {
+  CREATE VIRTUAL TABLE uio USING fts5(ttt, detail=%DETAIL% %TOKENIZER%);
+  INSERT INTO uio VALUES(NULL);
+  INSERT INTO uio SELECT NULL FROM uio;
+  INSERT INTO uio SELECT NULL FROM uio;
+  INSERT INTO uio SELECT NULL FROM uio;
+  INSERT INTO uio SELECT NULL FROM uio;
+  INSERT INTO uio SELECT NULL FROM uio;
+  INSERT INTO uio SELECT NULL FROM uio;
+  INSERT INTO uio SELECT NULL FROM uio;
+  INSERT INTO uio SELECT NULL FROM uio;
+  SELECT count(*) FROM uio;
+} {256}
+
+do_execsql_test 17.2 {
+  SELECT count(*) FROM uio WHERE rowid BETWEEN 8 AND 17
+} {10}
+do_execsql_test 17.3 {
+  SELECT rowid FROM uio WHERE rowid BETWEEN 8 AND 17
+} {8 9 10 11 12 13 14 15 16 17}
+do_execsql_test 17.4 {
+  SELECT rowid FROM uio WHERE rowid BETWEEN 8 AND 17 ORDER BY rowid DESC
+} {17 16 15 14 13 12 11 10 9 8}
+do_execsql_test 17.5 {
+  SELECT count(*) FROM uio
+} {256}
+
+do_execsql_test 17.6 {
+  INSERT INTO uio(rowid) VALUES(9223372036854775807);
+  INSERT INTO uio(rowid) VALUES(-9223372036854775808);
+  SELECT count(*) FROM uio;
+} {258}
+do_execsql_test 17.7 {
+  SELECT min(rowid), max(rowid) FROM uio;
+} {-9223372036854775808 9223372036854775807}
+
+do_execsql_test 17.8 {
+  INSERT INTO uio DEFAULT VALUES;
+  SELECT min(rowid), max(rowid), count(*) FROM uio;
+} {-9223372036854775808 9223372036854775807 259}
+
+do_execsql_test 17.9 {
+  SELECT min(rowid), max(rowid), count(*) FROM uio WHERE rowid < 10;
+} {-9223372036854775808 9 10}
+
+#--------------------------------------------------------------------
+#
+do_execsql_test 18.1 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, b, detail=%DETAIL% %TOKENIZER%);
+  CREATE VIRTUAL TABLE t2 USING fts5(c, d, detail=%DETAIL% %TOKENIZER%);
+  INSERT INTO t1 VALUES('abc*', NULL);
+  INSERT INTO t2 VALUES(1, 'abcdefg');
+}
+do_execsql_test 18.2 {
+  SELECT t1.rowid, t2.rowid FROM t1, t2 WHERE t2 MATCH t1.a AND t1.rowid = t2.c
+} {1 1}
+do_execsql_test 18.3 {
+  SELECT t1.rowid, t2.rowid FROM t2, t1 WHERE t2 MATCH t1.a AND t1.rowid = t2.c
+} {1 1}
+
+#--------------------------------------------------------------------
+# fts5 table in the temp schema.
+#
+reset_db
+sqlite3_fts5_register_origintext db
+do_execsql_test 19.0 {
+  CREATE VIRTUAL TABLE temp.t1 USING fts5(x, detail=%DETAIL% %TOKENIZER%);
+  INSERT INTO t1 VALUES('x y z');
+  INSERT INTO t1 VALUES('w x 1');
+  SELECT rowid FROM t1 WHERE t1 MATCH 'x';
+} {1 2}
+
+#--------------------------------------------------------------------
+# Test that 6 and 7 byte varints can be read.
+#
+reset_db
+sqlite3_fts5_register_origintext db
+do_execsql_test 20.0 {
+  CREATE VIRTUAL TABLE temp.tmp USING fts5(x, detail=%DETAIL% %TOKENIZER%);
+}
+set ::ids [list \
+  0 [expr 1<<36] [expr 2<<36] [expr 1<<43] [expr 2<<43]
+]
+do_test 20.1 {
+  foreach id $::ids {
+    execsql { INSERT INTO tmp(rowid, x) VALUES($id, 'x y z') }
+  }
+  execsql { SELECT rowid FROM tmp WHERE tmp MATCH 'y' }
+} $::ids
+
+#--------------------------------------------------------------------
+# Test that a DROP TABLE may be executed within a transaction that
+# writes to an FTS5 table.
+#
+do_execsql_test 21.0 {
+  CREATE TEMP TABLE t8(a, b);
+  CREATE VIRTUAL TABLE ft USING fts5(x, detail=%DETAIL% %TOKENIZER%);
+}
+
+do_execsql_test 21.1 {
+  BEGIN;
+    INSERT INTO ft VALUES('a b c');
+    DROP TABLE t8;
+  COMMIT;
+}
+
+do_execsql_test 22.0 {
+  CREATE VIRTUAL TABLE t9 USING fts5(x, detail=%DETAIL% %TOKENIZER%);
+  INSERT INTO t9(rowid, x) VALUES(2, 'bbb');
+  BEGIN;
+    INSERT INTO t9(rowid, x) VALUES(1, 'aaa');
+    DELETE FROM t9 WHERE rowid = 2;
+    INSERT INTO t9(rowid, x) VALUES(3, 'bbb');
+  COMMIT;
+}
+
+do_execsql_test 22.1 {
+  SELECT rowid FROM t9('a*')
+} {1}
+
+#-------------------------------------------------------------------------
+do_execsql_test 23.0 {
+  CREATE VIRTUAL TABLE t10 USING fts5(x, detail=%DETAIL% %TOKENIZER%);
+  CREATE TABLE t11(x);
+}
+do_execsql_test 23.1 {
+  SELECT * FROM t11, t10 WHERE t11.x = t10.x AND t10.rowid IS NULL;
+}
+do_execsql_test 23.2 {
+  SELECT * FROM t11, t10 WHERE t10.rowid IS NULL;
+}
+
+#-------------------------------------------------------------------------
+do_execsql_test 24.0 {
+  CREATE VIRTUAL TABLE t12 USING fts5(x, detail=%DETAIL% %TOKENIZER%);
+  INSERT INTO t12 VALUES('aaaa');
+}
+do_execsql_test 24.1 {
+  BEGIN;
+    DELETE FROM t12 WHERE rowid=1;
+    SELECT * FROM t12('aaaa');
+    INSERT INTO t12 VALUES('aaaa');
+  END;
+}
+execsql_pp {
+  SELECT rowid, hex(block) FROM t12_data
+}
+do_execsql_test 24.2 {
+  INSERT INTO t12(t12) VALUES('integrity-check');
+}
+do_execsql_test 24.3 {
+    SELECT * FROM t12('aaaa');
+} {aaaa}
+
+#-------------------------------------------------------------------------
+do_execsql_test 25.0 {
+  CREATE VIRTUAL TABLE t13 USING fts5(x, detail=%DETAIL% %TOKENIZER%);
+}
+do_execsql_test 25.1 {
+  BEGIN;
+  INSERT INTO t13 VALUES('AAAA');
+SELECT * FROM t13('BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB*');
+
+  END;
+}
+
+
+}
+}
+
+expand_all_sql db
+finish_test
diff --git a/ext/fts5/test/fts5ab.test b/ext/fts5/test/fts5ab.test
new file mode 100644
index 0000000000000000000000000000000000000000..7e312286f3a5b00718b0cd5ec49b7ef58a4149a1
--- /dev/null
+++ b/ext/fts5/test/fts5ab.test
@@ -0,0 +1,300 @@
+# 2014 June 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS5 module.
+#
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5ab
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+foreach_detail_mode $testprefix {
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, b, detail=%DETAIL%);
+  INSERT INTO t1 VALUES('hello', 'world');
+  INSERT INTO t1 VALUES('one two', 'three four');
+  INSERT INTO t1(rowid, a, b) VALUES(45, 'forty', 'five');
+}
+
+do_execsql_test 1.1 {
+  SELECT * FROM t1 ORDER BY rowid DESC;
+} { forty five {one two} {three four} hello world }
+
+do_execsql_test 1.2 {
+  SELECT rowid FROM t1 ORDER BY rowid DESC;
+} {45 2 1}
+
+do_execsql_test 1.3 {
+  SELECT rowid FROM t1 ORDER BY rowid ASC;
+} {1 2 45}
+
+do_execsql_test 1.4 {
+  SELECT * FROM t1 WHERE rowid=2;
+} {{one two} {three four}}
+
+do_execsql_test 1.5 {
+  SELECT * FROM t1 WHERE rowid=2.01;
+} {}
+
+do_execsql_test 1.6 {
+  SELECT * FROM t1 WHERE rowid=1.99;
+} {}
+
+#-------------------------------------------------------------------------
+
+reset_db
+do_execsql_test 2.1 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x, detail=%DETAIL%);
+  INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
+  INSERT INTO t1 VALUES('one');
+  INSERT INTO t1 VALUES('two');
+  INSERT INTO t1 VALUES('three');
+}
+
+do_catchsql_test 2.2 {
+  SELECT rowid, * FROM t1 WHERE t1 MATCH 'AND AND'
+} {1 {fts5: syntax error near "AND"}}
+
+do_execsql_test 2.3 { SELECT rowid, * FROM t1 WHERE t1 MATCH 'two' } {2 two}
+do_execsql_test 2.4 { SELECT rowid, * FROM t1 WHERE t1 MATCH 'three' } {3 three}
+do_execsql_test 2.5 { SELECT rowid, * FROM t1 WHERE t1 MATCH 'one' } {1 one}
+
+do_execsql_test 2.6 {
+  INSERT INTO t1 VALUES('a b c d e f g');
+  INSERT INTO t1 VALUES('b d e a a a i');
+  INSERT INTO t1 VALUES('x y z b c c c');
+}
+
+foreach {tn expr res} {
+  1  a    {5 4}
+  2  b    {6 5 4}
+  3  c    {6 4}
+  4  d    {5 4}
+  5  e    {5 4}
+  6  f    {4}
+  7  g    {4}
+  8  x    {6}
+  9  y    {6}
+  10 z    {6}
+} {
+  do_execsql_test 2.7.$tn.1 { 
+    SELECT rowid FROM t1 WHERE t1 MATCH $expr ORDER BY rowid DESC
+  } $res
+  do_execsql_test 2.7.$tn.2 { 
+    SELECT rowid FROM t1 WHERE t1 MATCH $expr ORDER BY rowid ASC
+  } [lsort -integer $res]
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a,b);
+  INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
+}
+
+foreach {tn a b} {
+   1 {abashed abandons abase abash abaft} {abases abased}
+   2 {abasing abases abaft abated abandons} {abases abandoned}
+   3 {abatement abash abash abated abase} {abasements abashing}
+   4 {abaft abasements abase abasement abasing} {abasement abases}
+   5 {abaft abashing abatement abash abasements} {abandons abandoning}
+   6 {aback abate abasements abashes abandoned} {abasement abased}
+   7 {abandons abated abased aback abandoning} {abases abandoned}
+   8 {abashing abases abasement abaft abashing} {abashed abate}
+   9 {abash abase abate abashing abashed} {abandon abandoned}
+   10 {abate abandoning abandons abasement aback} {abandon abandoning}
+} {
+  do_execsql_test 3.1.$tn.1 { INSERT INTO t1 VALUES($a, $b) } 
+  do_execsql_test 3.1.$tn.2 { INSERT INTO t1(t1) VALUES('integrity-check') }
+}
+
+foreach {tn expr res} {
+  1 {abash} {9 5 3 1}
+  2 {abase} {9 4 3 1}
+  3 {abase + abash} {1}
+  4 {abash + abase} {9}
+  5 {abaft + abashing} {8 5}
+  6 {abandon + abandoning} {10}
+  7 {"abashing abases abasement abaft abashing"} {8}
+} {
+  do_execsql_test 3.2.$tn {
+    SELECT rowid FROM t1 WHERE t1 MATCH $expr ORDER BY rowid DESC
+  } $res
+}
+
+do_execsql_test 3.3 {
+  SELECT rowid FROM t1 WHERE t1 MATCH 'NEAR(aback abate, 2)'
+} {6}
+
+foreach {tn expr res} {
+  1 {abash} {1 3 5 9}
+  2 {abase} {1 3 4 9}
+  3 {abase + abash} {1}
+  4 {abash + abase} {9}
+  5 {abaft + abashing} {5 8}
+  6 {abandon + abandoning} {10}
+  7 {"abashing abases abasement abaft abashing"} {8}
+} {
+  do_execsql_test 3.4.$tn {
+    SELECT rowid FROM t1 WHERE t1 MATCH $expr
+  } $res
+}
+
+#-------------------------------------------------------------------------
+# Documents with more than 2M tokens.
+#
+
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE s1 USING fts5(x, detail=%DETAIL%);
+}
+foreach {tn doc} [list \
+  1 [string repeat {a x } 1500000]       \
+  2 "[string repeat {a a } 1500000] x"   \
+] {
+  do_execsql_test 4.$tn { INSERT INTO s1 VALUES($doc) }
+}
+
+do_execsql_test 4.3 {
+  SELECT rowid FROM s1 WHERE s1 MATCH 'x'
+} {1 2}
+
+if {[detail_is_full]} {
+  do_execsql_test 4.4 {
+    SELECT rowid FROM s1 WHERE s1 MATCH '"a x"'
+  } {1 2}
+}
+
+do_execsql_test 4.5.1 {
+  SELECT rowid FROM s1 WHERE s1 MATCH 'a AND x'
+} {1 2}
+
+do_execsql_test 4.5.2 {
+  SELECT rowid FROM s1 WHERE s1 MATCH 'a x'
+} {1 2}
+
+#-------------------------------------------------------------------------
+# Check that a special case of segment promotion works. The case is where
+# a new segment is written to level L, but the oldest segment within level
+# (L-2) is larger than it.
+#
+do_execsql_test 5.0 {
+  CREATE VIRTUAL TABLE s2 USING fts5(x, detail=%DETAIL%);
+  INSERT INTO s2(s2, rank) VALUES('pgsz', 32);
+  INSERT INTO s2(s2, rank) VALUES('automerge', 0);
+}
+
+proc rnddoc {n} {
+  set map [list 0 a  1 b  2 c  3 d  4 e  5 f  6 g  7 h  8 i  9 j]
+  set doc [list]
+  for {set i 0} {$i < $n} {incr i} {
+    lappend doc [string map $map [format %.3d [expr int(rand()*1000)]]]
+  }
+  set doc
+}
+db func rnddoc rnddoc
+
+do_test 5.1 {
+  for {set i 1} {$i <= 65} {incr i} {
+    execsql { INSERT INTO s2 VALUES(rnddoc(10)) }
+  }
+  for {set i 1} {$i <= 63} {incr i} {
+    execsql { DELETE FROM s2 WHERE rowid = $i }
+  }
+  fts5_level_segs s2
+} {0 8}
+
+do_test 5.2 {
+  execsql {
+    INSERT INTO s2(s2, rank) VALUES('automerge', 8);
+  }
+  for {set i 0} {$i < 7} {incr i} {
+    execsql { INSERT INTO s2 VALUES(rnddoc(50)) }
+  }
+  fts5_level_segs s2
+} {8 0 0}
+
+# Test also the other type of segment promotion - when a new segment is written
+# that is larger than segments immediately following it.
+do_test 5.3 {
+  execsql {
+    DROP TABLE s2;
+    CREATE VIRTUAL TABLE s2 USING fts5(x, detail=%DETAIL%);
+    INSERT INTO s2(s2, rank) VALUES('pgsz', 32);
+    INSERT INTO s2(s2, rank) VALUES('automerge', 0);
+  }
+
+  for {set i 1} {$i <= 16} {incr i} {
+    execsql { INSERT INTO s2 VALUES(rnddoc(5)) }
+  }
+  fts5_level_segs s2
+} {0 1}
+
+do_test 5.4 {
+  execsql { INSERT INTO s2 VALUES(rnddoc(160)) }
+  fts5_level_segs s2
+} {2 0}
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test 6.0 {
+  CREATE VIRTUAL TABLE s3 USING fts5(x, detail=%DETAIL%);
+  BEGIN;
+    INSERT INTO s3 VALUES('a b c');
+    INSERT INTO s3 VALUES('A B C');
+}
+
+do_execsql_test 6.1.1 {
+  SELECT rowid FROM s3 WHERE s3 MATCH 'a'
+} {1 2}
+
+do_execsql_test 6.1.2 {
+  SELECT rowid FROM s3 WHERE s3 MATCH 'a' ORDER BY rowid DESC
+} {2 1}
+
+do_execsql_test 6.2 {
+  COMMIT;
+}
+
+do_execsql_test 6.3 {
+  SELECT rowid FROM s3 WHERE s3 MATCH 'a'
+} {1 2}
+
+do_test 6.4 {
+  db close
+  sqlite3 db test.db
+  execsql {
+    BEGIN;
+      INSERT INTO s3(s3) VALUES('optimize');
+    ROLLBACK;
+  }
+} {}
+
+#-------------------------------------------------------------------------
+#
+set doc [string repeat "a b c " 500]
+do_execsql_test 7.0 {
+  CREATE VIRTUAL TABLE x1 USING fts5(x, detail=%DETAIL%);
+  INSERT INTO x1(x1, rank) VALUES('pgsz', 32);
+  INSERT INTO x1 VALUES($doc);
+}
+
+} ;# foreach_detail_mode...
+
+
+finish_test
diff --git a/ext/fts5/test/fts5ac.test b/ext/fts5/test/fts5ac.test
new file mode 100644
index 0000000000000000000000000000000000000000..4628e909c16d16cbd2b4e075fc431de6da032ecb
--- /dev/null
+++ b/ext/fts5/test/fts5ac.test
@@ -0,0 +1,278 @@
+# 2014 June 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS5 module.
+#
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5ac
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+foreach_detail_mode $testprefix {
+
+set data {
+    0   {p o q e z k z p n f y u z y n y}   {l o o l v v k}
+    1   {p k h h p y l l h i p v n}         {p p l u r i f a j g e r r x w}
+    2   {l s z j k i m p s}                 {l w e j t j e e i t w r o p o}
+    3   {x g y m y m h p}                   {k j j b r e y y a k y}
+    4   {q m a i y i z}                     {o w a g k x g j m w e u k}
+    5   {k o a w y b s z}                   {s g l m m l m g p}
+    6   {d a q i z h b l c p k j g k}       {p x u j x t v c z}
+    7   {f d a g o c t i}                   {w f c x l d r k i j}
+    8   {y g w u b q p o m j y b p a e k}   {r i d k y w o z q m a t p}
+    9   {r k o m c c j s x m x m x m q r}   {y r c a q d z k n x n}
+    10  {k j q m g q a j d}                 {d d e z g w h c d o o g x d}
+    11  {j z u m o y q j f w e e w t r j w} {g m o r x n t n w i f g l z f}
+    12  {s y w a w d o h x m k}             {c w k z b p o r a}
+    13  {u t h x e g s k n g i}             {f j w g c s r}
+    14  {b f i c s u z t k}                 {c k q s j u i z o}
+    15  {n a f n u s w h y n s i q e w}     {x g e g a s s h n}
+    16  {k s q e j n p}                     {t r j f t o e k k l m i}
+    17  {g d t u w r o p m n m n p h b o u} {h s w o s l j e}
+    18  {f l q y q q g e e x j r}           {n b r r g e i r t x q k}
+    19  {f i r g o a w e p i l o a w}       {e k r z t d g h g i b d i e m}
+    20  {l d u u f p y}                     {g o m m u x m g l j t t x x u}
+    21  {m c d k x i c z l}                 {m i a i e u h}
+    22  {w b f o c g x y j}                 {z d w x d f h i p}
+    23  {w u i u x t c h k i b}             {b y k h b v r t g j}
+    24  {h f d j s w s b a p k}             {a q y u z e y m m j q r}
+    25  {d i x y x x k i y f s d j h z p n} {l l q m e t c w g y h t s v g}
+    26  {g s q w t d k x g f m j p k y}     {r m b x e l t d}
+    27  {j l s q u g y v e c l o}           {m f l m m m h g x x l n c}
+    28  {c t j g v r s b z j}               {l c f y d t q n}
+    29  {e x z y w i h l}                   {b n b x e y q e n u m}
+    30  {g y y h j b w r}                   {q b q f u s k c k g r}
+    31  {g u l x l b r c m z b u c}         {k g t b x k x n t e z d h o}
+    32  {w g v l z f b z h p s c v h}       {g e w v m h k r g w a r f q}
+    33  {c g n f u d o y o b}               {e y o h x x y y i z s b h a j}
+    34  {v y h c q u u s q y x x k s q}     {d n r m y k n t i r n w e}
+    35  {o u c x l e b t a}                 {y b a x y f z x r}
+    36  {x p h l j a a u u j h}             {x o f s z m b c q p}
+    37  {k q t i c a q n m v v}             {v r z e f m y o}
+    38  {r w t t t t r v v o e p g h}       {l w x a g a u h y}
+    39  {o p v g v b a g o}                 {j t q c r b b g y z}
+    40  {f s o r o d t h q f x l}           {r d b m k i f s t d l m y x j w}
+    41  {t m o t m f m f}                   {i p i q j v n v m b q}
+    42  {t x w a r l w d t b c o d o}       {a h f h w z d n s}
+    43  {t u q c d g p q x j o l c x c}     {m n t o z z j a y}
+    44  {v d i i k b f s z r v r z y}       {g n q y s x x m b x c l w}
+    45  {p v v a c s z y e o l}             {m v t u d k m k q b d c v z r}
+    46  {f y k l d r q w r s t r e}         {h m v r r l r r t f q e x y}
+    47  {w l n l t y x}                     {n h s l a f c h u f l x x m v n o}
+    48  {t n v i k e b p z p d j j l i o}   {i v z p g u e j s i k n h w d c}
+    49  {z v x p n l t a j c}               {e j l e n c e t a d}
+    50  {w u b x u i v h a i y m m r p m s} {s r h d o g z y f f x e}
+    51  {d c c x b c a x g}                 {p r a j v u y}
+    52  {f w g r c o d l t u e z h i}       {j l l s s b j m}
+    53  {p m t f k i x}                     {u v y a z g w v v m x h i}
+    54  {l c z g l o j i c d e b}           {b f v y w u i b e i y}
+    55  {r h c x f x a d s}                 {z x y k f l r b q c v}
+    56  {v x x c y h z x b g m o q n c}     {h n b i t g h a q b c o r u}
+    57  {d g l o h t b s b r}               {n u e p t i m u}
+    58  {t d y e t d c w u o s w x f c h}   {i o s v y b r d r}
+    59  {l b a p q n d r}                   {k d c c d n y q h g a o p e x}
+    60  {f r z v m p k r}                   {x x r i s b a g f c}
+    61  {s a z i e r f i w c n y v z t k s} {y y i r y n l s b w i e k n}
+    62  {n x p r e x q r m v i b y}         {f o o z n b s r q j}
+    63  {y j s u j x o n r q t f}           {f v k n v x u s o a d e f e}
+    64  {u s i l y c x q}                   {r k c h p c h b o s s u s p b}
+    65  {m p i o s h o}                     {s w h u n d m n q t y k b w c}
+    66  {l d f g m x x x o}                 {s w d d f b y j j h h t i y p j o}
+    67  {c b m h f n v w n h}               {i r w i e x r w l z p x u g u l s}
+    68  {y a h u h i m a y q}               {d d r x h e v q n z y c j}
+    69  {c x f d x o n p o b r t b l p l}   {m i t k b x v f p t m l l y r o}
+    70  {u t l w w m s}                     {m f m o l t k o p e}
+    71  {f g q e l n d m z x q}             {z s i i i m f w w f n g p e q}
+    72  {n l h a v u o d f j d e x}         {v v s l f g d g r a j x i f z x}
+    73  {x v m v f i g q e w}               {r y s j i k m j j e d g r n o i f}
+    74  {g d y n o h p s y q z j d w n h w} {x o d l t j i b r d o r y}
+    75  {p g b i u r b e q d v o a g w m k} {q y z s f q o h}
+    76  {u z a q u f i f f b}               {b s p b a a d x r r i q f}
+    77  {w h h z t h p o a h h e e}         {h w r p h k z v y f r x}
+    78  {c a r k i a p u x}                 {f w l p t e m l}
+    79  {q q u k o t r k z}                 {f b m c w p s s o z}
+    80  {t i g v y q s r x m r x z e f}     {x o j w a u e y s j c b u p p r o}
+    81  {n j n h r l a r e o z w e}         {v o r r j a v b}
+    82  {i f i d k w d n h}                 {o i d z i z l m w s b q v u}
+    83  {m d g q q b k b w f q q p p}       {j m q f b y c i z k y q p l e a}
+    84  {m x o n y f g}                     {y c n x n q j i y c l h b r q z}
+    85  {v o z l n p c}                     {g n j n t b b x n c l d a g j v}
+    86  {z n a y f b t k k t d b z a v}     {r p c n r u k u}
+    87  {b q t x z e c w}                   {q a o a l o a h i m j r}
+    88  {j f h o x x a z g b a f a m i b}   {j z c z y x e x w t}
+    89  {t c t p r s u c q n}               {z x l i k n f q l n t}
+    90  {w t d q j g m r f k n}             {l e w f w w a l y q k i q t p c t}
+    91  {c b o k l i c b s j n m b l}       {y f p q o w g}
+    92  {f y d j o q t c c q m f j s t}     {f h e d y m o k}
+    93  {k x j r m a d o i z j}             {r t t t f e b r x i v j v g o}
+    94  {s f e a e t i h h d q p z t q}     {b k m k w h c}
+    95  {h b n j t k i h o q u}             {w n g i t o k c a m y p f l x c p}
+    96  {f c x p y r b m o l m o a}         {p c a q s u n n x d c f a o}
+    97  {u h h k m n k}                     {u b v n u a o c}
+    98  {s p e t c z d f n w f}             {l s f j b l c e s h}
+    99  {r c v w i v h a t a c v c r e}     {h h u m g o f b a e o}
+}
+
+foreach {tn2 sql} {
+  1  {}
+  2  {BEGIN}
+} {
+  reset_db
+  fts5_aux_test_functions db
+
+  do_execsql_test 1.$tn2.0 {
+    CREATE VIRTUAL TABLE xx USING fts5(x,y, detail=%DETAIL%);
+    INSERT INTO xx(xx, rank) VALUES('pgsz', 32);
+  }
+
+  execsql $sql
+
+  do_test 1.$tn2.1.1 {
+    foreach {id x y} $data {
+      execsql { INSERT INTO xx(rowid, x, y) VALUES($id, $x, $y) }
+    }
+    execsql { INSERT INTO xx(xx) VALUES('integrity-check') }
+  } {}
+
+
+  #-------------------------------------------------------------------------
+  #
+  do_execsql_test 1.$tn2.integrity {
+    INSERT INTO xx(xx) VALUES('integrity-check');
+  }
+
+  #-------------------------------------------------------------------------
+  #
+  foreach {tn expr} {
+    1.1 "a   AND b"
+    1.2 "a   OR b"
+    1.3 "o"
+    1.4 "b q"
+    1.5 "e a e"
+    1.6 "m d g q q b k b w f q q p p"
+    1.7 "l o o l v v k"
+    1.8 "a"
+    1.9 "b"
+    1.10 "c"
+    1.11 "no"
+    1.12 "L O O L V V K"
+    1.13 "a AND b AND c"
+    1.14 "x:a"
+
+    2.1 "x:a"
+    2.2 "y:a"
+    2.3 "x:b"
+    2.4 "y:b"
+
+    3.1 "{x}:a"
+    3.2 "{y}:a"
+    3.3 "{x}:b"
+    3.4 "{y}:b"
+
+    4.1 "{x y}:a"
+    4.2 "{y x}:a"
+    4.3 "{x x}:b"
+    4.4 "{y y}:b"
+
+    5.1 {{"x" "y"}:a}
+    5.2 {{"y" x}:a}
+    5.3 {{x "x"}:b}
+    5.4 {{"y" y}:b}
+
+    6.1 "b + q"
+    6.2 "e + a + e"
+    6.3 "m + d + g + q + q + b + k + b + w + f + q + q + p + p"
+    6.4 "l + o + o + l + v + v + k"
+    6.5 "L + O + O + L + V + V + K"
+
+    7.1 "a+b AND c"
+    7.2 "d+c AND u"
+    7.3 "d+c AND u+d"
+    7.4 "a+b OR c"
+    7.5 "d+c OR u"
+    7.6 "d+c OR u+d"
+
+    8.1 "NEAR(a b)"
+    8.2 "NEAR(r c)"
+    8.2 { NEAR(r c, 5) }
+    8.3 { NEAR(r c, 3) }
+    8.4 { NEAR(r c, 2) }
+    8.5 { NEAR(r c, 0) }
+    8.6 { NEAR(a b c) }
+    8.7 { NEAR(a b c, 8) }
+    8.8  { x : NEAR(r c) }
+    8.9  { y : NEAR(r c) }
+
+    9.1 { NEAR(r c) }
+    9.2 { NEAR(r c, 5) }
+    9.3 { NEAR(r c, 3) }
+    9.4 { NEAR(r c, 2) }
+    9.5 { NEAR(r c, 0) }
+    9.6 { NEAR(a b c) }
+    9.7 { NEAR(a b c, 8) }
+    9.8  { x : NEAR(r c) }
+    9.9  { y : NEAR(r c) }
+    9.10 { x : "r c" }
+    9.11 { y : "r c" }
+    9.12 { a AND b }
+    9.13 { a AND b AND c }
+    9.14a { a }
+    9.14b { a OR b }
+    9.15 { a OR b AND c }
+    9.16 { c AND b OR a }
+    9.17 { c AND (b OR a) }
+    9.18 { c NOT (b OR a) }
+    9.19 { (c NOT b) OR (a AND d) }
+  } {
+
+    if {[fts5_expr_ok $expr xx]==0} {
+      do_test 1.$tn2.$tn.OMITTED { list } [list]
+      continue
+    }
+
+    set res [fts5_query_data $expr xx]
+    do_execsql_test 1.$tn2.$tn.[llength $res].asc {
+      SELECT rowid, fts5_test_poslist(xx), fts5_test_collist(xx) 
+      FROM xx WHERE xx match $expr
+    } $res
+
+    set res [fts5_query_data $expr xx DESC]
+    do_execsql_test 1.$tn2.$tn.[llength $res].desc {
+      SELECT rowid, fts5_test_poslist(xx), fts5_test_collist(xx) 
+      FROM xx WHERE xx match $expr ORDER BY 1 DESC
+    } $res
+  }
+}
+
+}
+
+do_execsql_test 2.1 {
+  SELECT fts5_expr_tcl('a AND b');
+} {{AND [nearset -- {a}] [nearset -- {b}]}}
+
+do_test 2.2.1  { nearset {{a b c}} -- a } {0.0.0}
+do_test 2.2.2  { nearset {{a b c}} -- c } {0.0.2}
+
+foreach {tn expr tclexpr} {
+  1 {a b} {AND [N $x -- {a}] [N $x -- {b}]}
+} {
+  do_execsql_test 2.3.$tn {
+    SELECT fts5_expr_tcl($expr, 'N $x')
+  } [list $tclexpr]
+}
+
+finish_test
diff --git a/ext/fts5/test/fts5ad.test b/ext/fts5/test/fts5ad.test
new file mode 100644
index 0000000000000000000000000000000000000000..27806a4c0c20146b72f29b662db35d318c4be682
--- /dev/null
+++ b/ext/fts5/test/fts5ad.test
@@ -0,0 +1,243 @@
+# 2014 June 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS5 module.
+#
+# More specifically, the focus is on testing prefix queries, both with and
+# without prefix indexes.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5ad
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+foreach_detail_mode $testprefix {
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE yy USING fts5(x, y, detail=%DETAIL%);
+  INSERT INTO yy VALUES('Changes the result to be', 'the list of all matching');
+  INSERT INTO yy VALUES('indices (or all  matching', 'values if -inline is');
+  INSERT INTO yy VALUES('specified as  well.) If', 'indices are returned, the');
+} {}
+
+foreach {tn match res} {
+  1 {c*} {1}
+  2 {i*} {3 2}
+  3 {t*} {3 1}
+  4 {r*} {3 1}
+} {
+  do_execsql_test 1.$tn {
+    SELECT rowid FROM yy WHERE yy MATCH $match ORDER BY rowid DESC
+  } $res
+}
+
+foreach {tn match res} {
+  5 {c*} {1}
+  6 {i*} {2 3}
+  7 {t*} {1 3}
+  8 {r*} {1 3}
+} {
+  do_execsql_test 1.$tn {
+    SELECT rowid FROM yy WHERE yy MATCH $match
+  } $res
+}
+
+foreach {T create} {
+  2 {
+    CREATE VIRTUAL TABLE t1 USING fts5(a, b, detail=%DETAIL%);
+    INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
+  }
+  
+  3 {
+    CREATE VIRTUAL TABLE t1 USING fts5(a, b, prefix="1,2,3,4", detail=%DETAIL%);
+    INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
+  }
+
+  4 {
+    CREATE VIRTUAL TABLE t1 USING fts5(a, b, detail=%DETAIL%);
+    INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
+    BEGIN;
+  }
+  
+  5 {
+    CREATE VIRTUAL TABLE t1 USING fts5(a, b, prefix="1,2,3,4", detail=%DETAIL%);
+    INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
+    BEGIN;
+  }
+
+} {
+
+  do_test $T.1 { 
+    execsql { DROP TABLE IF EXISTS t1 }
+    execsql $create
+  } {}
+  
+  do_test $T.1 {
+    foreach {rowid a b} {
+      0   {fghij uvwxyz klmn pq uvwx}         {klmn f fgh uv fghij klmno}
+      1   {uv f abcd abcd fghi}               {pq klm uv uv fgh uv a}
+      2   {klmn klm pqrs fghij uv}            {f k uvw ab abcd pqr uv}
+      3   {ab pqrst a fghi ab pqr fg}         {k klmno a fg abcd}
+      4   {abcd pqrst uvwx a fgh}             {f klmno fghij kl pqrst}
+      5   {uvwxyz k abcde u a}                {uv k k kl klmn}
+      6   {uvwxyz k klmn pqrst uv}            {fghi pqrs abcde u k}
+      7   {uvwxy klmn u p pqrst fgh}          {p f fghi abcd uvw kl uv}
+      8   {f klmno pqrst uvwxy pqrst}         {uv abcde klm pq pqr}
+      9   {f abcde a uvwxyz pqrst}            {fghij abc k uvwx pqr fghij uvwxy}
+      10  {ab uv f fg pqrst uvwxy}            {fgh p uv k abc klm uvw}
+      11  {pq klmno a uvw abcde uvwxyz}       {fghij pq uvwxyz pqr fghi}
+      12  {fgh u pq fgh uvw}                  {uvw pqr f uvwxy uvwx}
+      13  {uvwx klmn f fgh abcd pqr}          {uvw k fg uv klm abcd}
+      14  {ab uvwx pqrst pqr uvwxyz pqrs}     {uvwxyz abcde ab ab uvw abcde}
+      15  {abc abcde uvwxyz abc kl k pqr}     {klm k k klmno u fgh}
+      16  {fghi abcd fghij uv uvwxyz ab uv}   {klmn pqr a uvw fghi}
+      17  {abc pqrst fghi uvwx uvw klmn fghi} {ab fg pqr pqrs p}
+      18  {pqr kl a fghij fgh fg kl}          {pqr uvwxyz uvw abcd uvwxyz}
+      19  {fghi fghi pqr kl fghi f}           {klmn u u klmno klmno}
+      20  {abc pqrst klmno kl pq uvwxy}       {abc k fghi pqrs klm}
+      21  {a pqr uvwxyz uv fghi a fgh}        {abc pqrs pqrst pq klm}
+      22  {klm abc uvwxyz klm pqrst}          {fghij k pq pqr u klm fghij}
+      23  {p klm uv p a a}                    {uvwxy klmn uvw abcde pq}
+      24  {uv fgh fg pq uvwxy u uvwxy}        {pqrs a uvw p uvwx uvwxyz fg}
+      25  {fghij fghi klmn abcd pq kl}        {fghi abcde pqrs abcd fgh uvwxy}
+      26  {pq fgh a abc klmno klmn}           {fgh p k p fg fghij}
+      27  {fg pq kl uvwx fghij pqrst klmn}    {abcd uvw abcd fghij f fghij}
+      28  {uvw fghi p fghij pq fgh uvwx}      {k fghij abcd uvwx pqr fghi}
+      29  {klm pq abcd pq f uvwxy}            {pqrst p fghij pqr p}
+      30  {ab uvwx fg uvwx klmn klm}          {klmn klmno fghij klmn klm}
+      31  {pq k pqr abcd a pqrs}              {abcd abcd uvw a abcd klmno ab}
+      32  {pqrst u abc pq klm}                {abc kl uvwxyz fghij u fghi p}
+      33  {f uvwxy u k f uvw uvwx}            {pqrs uvw fghi fg pqrst klm}
+      34  {pqrs pq fghij uvwxyz pqr}          {ab abc abc uvw f pq f}
+      35  {uvwxy ab uvwxy klmno kl pqrs}      {abcde uvw pqrs uvwx k k}
+      36  {uvwxyz k ab abcde abc uvw}         {uvw abcde uvw klmn uv klmn}
+      37  {k kl uv abcde uvwx fg u}           {u abc uvwxy k fg abcd}
+      38  {fghi pqrst fghi pqr pqrst uvwx}    {u uv uvwx fghi abcde}
+      39  {k pqrst k uvw fg pqrst fghij}      {uvwxy ab kl klmn uvwxyz abcde}
+      40  {fg uvwxy pqrs klmn uvwxyz klm p}   {k uv ab fghij fgh k pqrs}
+      41  {uvwx abc f pq uvwxy k}             {ab uvwxyz abc f fghij}
+      42  {uvwxy klmno uvwxyz uvwxyz pqrst}   {uv kl kl klmno k f abcde}
+      43  {abcde ab pqrs fg f fgh}            {abc fghij fghi k k}
+      44  {uvw abcd a ab pqrst klmn fg}       {pqrst u uvwx pqrst fghij f pqrst}
+      45  {uvwxy p kl uvwxyz ab pqrst fghi}   {abc f pqr fg a k}
+      46  {u p f a fgh}                       {a kl pq uv f}
+      47  {pqrs abc fghij fg abcde ab a}      {p ab uv pqrs kl fghi abcd}
+      48  {abcde uvwxy pqrst uv abc pqr uvwx} {uvwxy klm uvwxy uvwx k}
+      49  {fgh klm abcde klmno u}             {a f fghij f uvwxyz abc u}
+      50  {uv uvw uvwxyz uvwxyz uv ab}        {uvwx pq fg u k uvwxy}
+      51  {uvwxy pq p kl fghi}                {pqrs fghi pqrs abcde uvwxyz ab}
+      52  {pqr p uvwxy kl pqrs klmno fghij}   {ab abcde abc pqrst pqrs uv}
+      53  {fgh pqrst p a klmno}               {ab ab pqrst pqr kl pqrst}
+      54  {abcd klm ab uvw a fg u}            {f pqr f abcd uv}
+      55  {u fg uvwxyz k uvw}                 {abc pqrs f fghij fg pqrs uvwxy}
+      56  {klm fg p fghi fg a}                {uv a fghi uvwxyz a fghi}
+      57  {uvwxy k abcde fgh f fghi}          {f kl klmn f fghi klm}
+      58  {klm k fgh uvw fgh fghi}            {klmno uvwx u pqrst u}
+      59  {fghi pqr pqrst p uvw fghij}        {uv pqrst pqrs pq fghij klm}
+      60  {uvwx klm uvwxy uv klmn}            {p a a abc klmn ab k}
+      61  {uvwxy uvwx klm uvwx klm}           {pqrs ab ab uvwxyz fg}
+      62  {kl uv uv uvw fg kl k}              {abcde uvw fgh uvwxy klm}
+      63  {a abc fgh u klm abcd}              {fgh pqr uv klmn fghij}
+      64  {klmn k klmn klmno pqrs pqr}        {fg kl abcde klmno uvwxy kl pq}
+      65  {uvwxyz klm fghi abc abcde kl}      {uvwxy uvw uvwxyz uvwxyz pq pqrst}
+      66  {pq klm abc pqrst fgh f}            {u abcde pqrst abcde fg}
+      67  {u pqrst kl u uvw klmno}            {u pqr pqrs fgh u p}
+      68  {abc fghi uvwxy fgh k pq}           {uv p uvwx uvwxyz ab}
+      69  {klmno f uvwxyz uvwxy klmn fg ab}   {fgh kl a pqr abcd pqr}
+      70  {fghi pqrst pqrst uv a}             {uvwxy k p uvw uvwx a}
+      71  {a fghij f p uvw}                   {klm fg abcd abcde klmno pqrs}
+      72  {uv uvwx uvwx uvw klm}              {uv fghi klmno uvwxy uvw}
+      73  {kl uvwxy ab f pq klm u}            {uvwxy klmn klm abcd pq fg k}
+      74  {uvw pqrst abcd uvwxyz ab}          {fgh fgh klmn abc pq}
+      75  {uvwxyz klm pq abcd klmno pqr uvwxyz} {kl f a fg pqr klmn}
+      76  {uvw uvwxy pqr k pqrst kl}          {uvwxy abc uvw uvw u}
+      77  {fgh klm u uvwxyz f uvwxy abcde}    {uv abcde klmno u u ab}
+      78  {klmno abc pq pqr fgh}              {p uv abcd fgh abc u k}
+      79  {fg pqr uvw pq uvwx}                {uv uvw fghij pqrs fg p}
+      80  {abcd pqrs uvwx uvwxy uvwx}         {u uvw pqrst pqr abcde pqrs kl}
+      81  {uvwxyz klm pq uvwxy fghij}         {p pq klm fghij u a a}
+      82  {uvwx k uvwxyz klmno pqrst kl}      {abcde p f pqrst abcd uvwxyz p}
+      83  {abcd abcde klm pqrst uvwxyz}       {uvw pqrst u p uvwxyz a pqrs}
+      84  {k klm abc uv uvwxy klm klmn}       {k abc pqr a abc p kl}
+      85  {klmn abcd pqrs p pq klm a}         {klmn kl ab uvw pq}
+      86  {klmn a pqrs abc uvw pqrst}         {a pqr kl klm a k f}
+      87  {pqrs ab uvwx uvwxy a pqr f}        {fg klm uvwx pqr pqr}
+      88  {klmno ab k kl u uvwxyz}            {uv kl uvw fghi uv uvw}
+      89  {pq fghi pqrst klmn uvwxy abc pqrs} {fg f f fg abc abcde klm}
+      90  {kl a k fghi uvwx fghi u}           {ab uvw pqr fg a p abc}
+      91  {uvwx pqrs klmno ab fgh uvwx}       {pqr uvwx abc kl f klmno kl}
+      92  {fghij pq pqrs fghij f pqrst}       {u abcde fg pq pqr fgh k}
+      93  {fgh u pqrs abcde klmno abc}        {abc fg pqrst pqr abcde}
+      94  {uvwx p abc f pqr p}                {k pqrs kl klm abc fghi klm}
+      95  {kl p klmno uvwxyz klmn}            {fghi ab a fghi pqrs kl}
+      96  {pqr fgh pq uvwx a}                 {uvw klm klmno fg uvwxy uvwx}
+      97  {fg abc uvwxyz fghi pqrst pq}       {abc k a ab abcde f}
+      98  {uvwxy fghi uvwxy u abcde abcde uvw} {klmn uvwx pqrs uvw uvwxy abcde}
+      99  {pq fg fghi uvwx uvwx fghij uvwxy}  {klmn klmn f abc fg a}
+    } {
+      execsql {
+        INSERT INTO t1(rowid, a, b) VALUES($rowid, $a, $b);
+      }
+    }
+  } {}
+  
+  proc prefix_query {prefixlist} {
+    set ret [list]
+    db eval {SELECT rowid, a, b FROM t1 ORDER BY rowid DESC} {
+      set bMatch 1
+      foreach pref $prefixlist {
+        if { [lsearch -glob $a $pref]<0 && [lsearch -glob $b $pref]<0 } {
+          set bMatch 0
+          break
+        }
+      }
+      if {$bMatch} { lappend ret $rowid }
+    }
+    return $ret
+  }
+
+  do_execsql_test $T.integrity {
+    INSERT INTO t1(t1) VALUES('integrity-check');
+  }
+  
+  foreach {bAsc sql} {
+    1 {SELECT rowid FROM t1 WHERE t1 MATCH $prefix}
+    0 {SELECT rowid FROM t1 WHERE t1 MATCH $prefix ORDER BY rowid DESC}
+  } {
+    foreach {tn prefix} {
+      1  {a*} 2 {ab*} 3 {abc*} 4 {abcd*} 5 {abcde*} 
+      6  {f*} 7 {fg*} 8 {fgh*} 9 {fghi*} 10 {fghij*}
+      11 {k*} 12 {kl*} 13 {klm*} 14 {klmn*} 15 {klmno*}
+      16 {p*} 17 {pq*} 18 {pqr*} 19 {pqrs*} 20 {pqrst*}
+      21 {u*} 22 {uv*} 23 {uvw*} 24 {uvwx*} 25 {uvwxy*} 26 {uvwxyz*}
+      27 {x*}
+      28 {a f*} 29 {a* f*} 30 {a* fghij*}
+    } {
+      set res [prefix_query $prefix]
+      if {$bAsc} {
+        set res [lsort -integer -increasing $res]
+      }
+      set n [llength $res]
+      do_execsql_test $T.$bAsc.$tn.$n $sql $res
+    }
+  }
+
+  catchsql COMMIT
+}
+
+}
+
+finish_test
diff --git a/ext/fts5/test/fts5ae.test b/ext/fts5/test/fts5ae.test
new file mode 100644
index 0000000000000000000000000000000000000000..205a59a69ffe1d798f090d6ce35d2a91ec456af4
--- /dev/null
+++ b/ext/fts5/test/fts5ae.test
@@ -0,0 +1,311 @@
+# 2014 June 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS5 module.
+#
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5ae
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+foreach_detail_mode $testprefix {
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, b, detail=%DETAIL%);
+  INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
+}
+
+do_execsql_test 1.1 {
+  INSERT INTO t1 VALUES('hello', 'world');
+  SELECT rowid FROM t1 WHERE t1 MATCH 'hello' ORDER BY rowid ASC;
+} {1}
+
+do_execsql_test 1.2 {
+  INSERT INTO t1 VALUES('world', 'hello');
+  SELECT rowid FROM t1 WHERE t1 MATCH 'hello' ORDER BY rowid ASC;
+} {1 2}
+
+do_execsql_test 1.3 {
+  INSERT INTO t1 VALUES('world', 'world');
+  SELECT rowid FROM t1 WHERE t1 MATCH 'hello' ORDER BY rowid ASC;
+} {1 2}
+
+do_execsql_test 1.4.1 {
+  INSERT INTO t1 VALUES('hello', 'hello');
+}
+
+do_execsql_test 1.4.2 {
+  SELECT rowid FROM t1 WHERE t1 MATCH 'hello' ORDER BY rowid ASC;
+} {1 2 4}
+
+fts5_aux_test_functions db
+
+#-------------------------------------------------------------------------
+# 
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE t2 USING fts5(x, y, detail=%DETAIL%);
+  INSERT INTO t2 VALUES('u t l w w m s', 'm f m o l t k o p e');
+  INSERT INTO t2 VALUES('f g q e l n d m z x q', 'z s i i i m f w w f n g p');
+}
+
+do_execsql_test 2.1 {
+  SELECT rowid, fts5_test_poslist(t2) FROM t2 
+  WHERE t2 MATCH 'm' ORDER BY rowid;
+} {
+  1 {0.0.5 0.1.0 0.1.2} 
+  2 {0.0.7 0.1.5}
+}
+
+do_execsql_test 2.2 {
+  SELECT rowid, fts5_test_poslist(t2) FROM t2 
+  WHERE t2 MATCH 'u OR q' ORDER BY rowid;
+} {
+  1 {0.0.0}
+  2 {1.0.2 1.0.10}
+}
+
+if {[detail_is_full]} {
+  do_execsql_test 2.3 {
+    SELECT rowid, fts5_test_poslist(t2) FROM t2 
+      WHERE t2 MATCH 'y:o' ORDER BY rowid;
+  } {
+    1 {0.1.3 0.1.7}
+  }
+}
+
+#-------------------------------------------------------------------------
+# 
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE t3 USING fts5(x, y, detail=%DETAIL%);
+  INSERT INTO t3 VALUES( 'j f h o x x a z g b a f a m i b', 'j z c z y x w t');
+  INSERT INTO t3 VALUES( 'r c', '');
+}
+
+if {[detail_is_full]} {
+  do_execsql_test 3.1 {
+    SELECT rowid, fts5_test_poslist(t3) FROM t3 WHERE t3 MATCH 'NEAR(a b)';
+  } {
+    1 {0.0.6 1.0.9 0.0.10 0.0.12 1.0.15}
+  }
+
+  do_execsql_test 3.2 {
+    SELECT rowid, fts5_test_poslist(t3) FROM t3 WHERE t3 MATCH 'NEAR(r c)';
+  } {
+    2 {0.0.0 1.0.1}
+  }
+}
+
+do_execsql_test 3.3 {
+  INSERT INTO t3 
+  VALUES('k x j r m a d o i z j', 'r t t t f e b r x i v j v g o');
+  SELECT rowid, fts5_test_poslist(t3) 
+  FROM t3 WHERE t3 MATCH 'a OR b AND c';
+} {
+  1 {0.0.6 1.0.9 0.0.10 0.0.12 1.0.15 2.1.2}
+  3 0.0.5 
+}
+
+#-------------------------------------------------------------------------
+# 
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE t4 USING fts5(x, y, detail=%DETAIL%);
+  INSERT INTO t4 
+  VALUES('k x j r m a d o i z j', 'r t t t f e b r x i v j v g o');
+}
+
+do_execsql_test 4.1 {
+  SELECT rowid, fts5_test_poslist(t4) FROM t4 WHERE t4 MATCH 'a OR b AND c';
+} {
+  1 0.0.5
+}
+
+#-------------------------------------------------------------------------
+# Test that the xColumnSize() and xColumnAvgsize() APIs work.
+#
+reset_db
+fts5_aux_test_functions db
+
+do_execsql_test 5.1 {
+  CREATE VIRTUAL TABLE t5 USING fts5(x, y, detail=%DETAIL%);
+  INSERT INTO t5 VALUES('a b c d', 'e f g h i j');
+  INSERT INTO t5 VALUES('', 'a');
+  INSERT INTO t5 VALUES('a', '');
+}
+do_execsql_test 5.2 {
+  SELECT rowid, fts5_test_columnsize(t5) FROM t5 WHERE t5 MATCH 'a'
+  ORDER BY rowid DESC;
+} {
+  3 {1 0}
+  2 {0 1}
+  1 {4 6}
+}
+
+do_execsql_test 5.3 {
+  SELECT rowid, fts5_test_columntext(t5) FROM t5 WHERE t5 MATCH 'a'
+  ORDER BY rowid DESC;
+} {
+  3 {a {}}
+  2 {{} a}
+  1 {{a b c d} {e f g h i j}}
+}
+
+do_execsql_test 5.4 {
+  SELECT rowid, fts5_test_columntotalsize(t5) FROM t5 WHERE t5 MATCH 'a'
+  ORDER BY rowid DESC;
+} {
+  3 {5 7}
+  2 {5 7}
+  1 {5 7}
+}
+
+do_execsql_test 5.5 {
+  INSERT INTO t5 VALUES('x y z', 'v w x y z');
+  SELECT rowid, fts5_test_columntotalsize(t5) FROM t5 WHERE t5 MATCH 'a'
+  ORDER BY rowid DESC;
+} {
+  3 {8 12}
+  2 {8 12}
+  1 {8 12}
+}
+
+#-------------------------------------------------------------------------
+# Test the xTokenize() API
+#
+reset_db
+fts5_aux_test_functions db
+do_execsql_test 6.1 {
+  CREATE VIRTUAL TABLE t6 USING fts5(x, y, detail=%DETAIL%);
+  INSERT INTO t6 VALUES('There are more', 'things in heaven and earth');
+  INSERT INTO t6 VALUES(', Horatio, Than are', 'dreamt of in your philosophy.');
+}
+
+do_execsql_test 6.2 {
+  SELECT rowid, fts5_test_tokenize(t6) FROM t6 WHERE t6 MATCH 't*'
+} {
+  1 {{there are more} {things in heaven and earth}}
+  2 {{horatio than are} {dreamt of in your philosophy}}
+}
+
+#-------------------------------------------------------------------------
+# Test the xQueryPhrase() API
+#
+reset_db
+fts5_aux_test_functions db
+do_execsql_test 7.1 {
+  CREATE VIRTUAL TABLE t7 USING fts5(x, y, detail=%DETAIL%);
+}
+do_test 7.2 {
+  foreach {x y} {
+    {q i b w s a a e l o} {i b z a l f p t e u}
+    {b a z t a l o x d i} {b p a d b f h d w y}
+    {z m h n p p u i e g} {v h d v b x j j c z}
+    {a g i m v a u c b i} {p k s o t l r t b m}
+    {v v c j o d a s c p} {f f v o k p o f o g}
+  } {
+    execsql {INSERT INTO t7 VALUES($x, $y)}
+  }
+  execsql { SELECT count(*) FROM t7 }
+} {5}
+
+foreach {tn q res} {
+  1 a {{4 2}}
+  2 b {{3 4}}
+  3 c {{2 1}}
+  4 d {{2 2}}
+  5 {a AND b} {{4 2} {3 4}}
+  6 {a OR b OR c OR d} {{4 2} {3 4} {2 1} {2 2}}
+} {
+  do_execsql_test 7.3.$tn { 
+    SELECT fts5_test_queryphrase(t7) FROM t7 WHERE t7 MATCH $q LIMIT 1
+  } [list $res]
+}
+
+do_execsql_test 7.4 {
+  SELECT fts5_test_rowcount(t7) FROM t7 WHERE t7 MATCH 'a';
+} {5 5 5 5}
+
+#do_execsql_test 7.4 {
+#  SELECT rowid, bm25debug(t7) FROM t7 WHERE t7 MATCH 'a';
+#} {5 5 5 5}
+#
+
+#-------------------------------------------------------------------------
+#
+do_test 8.1 {
+  execsql { CREATE VIRTUAL TABLE t8 USING fts5(x, y, detail=%DETAIL%) }
+  foreach {rowid x y} {
+     0 {A o}   {o o o C o o o o o o o o}
+     1 {o o B} {o o o C C o o o o o o o}
+     2 {A o o} {o o o o D D o o o o o o}
+     3 {o B}   {o o o o o D o o o o o o}
+     4 {E o G} {H o o o o o o o o o o o}
+     5 {F o G} {I o J o o o o o o o o o}
+     6 {E o o} {H o J o o o o o o o o o}
+     7 {o o o} {o o o o o o o o o o o o}
+     9 {o o o} {o o o o o o o o o o o o}
+  } {
+    execsql { INSERT INTO t8(rowid, x, y) VALUES($rowid, $x, $y) }
+  }
+} {}
+
+foreach {tn q res} {
+  1 {a} {0 2}
+  2 {b} {3 1}
+  3 {c} {1 0}
+  4 {d} {2 3}
+  5 {g AND (e OR f)} {5 4}
+  6 {j AND (h OR i)} {5 6}
+} {
+  do_execsql_test 8.2.$tn.1 {
+    SELECT rowid FROM t8 WHERE t8 MATCH $q ORDER BY bm25(t8);
+  } $res
+
+  do_execsql_test 8.2.$tn.2 {
+    SELECT rowid FROM t8 WHERE t8 MATCH $q ORDER BY +rank;
+  } $res
+
+  do_execsql_test 8.2.$tn.3 {
+    SELECT rowid FROM t8 WHERE t8 MATCH $q ORDER BY rank;
+  } $res
+}
+
+#-------------------------------------------------------------------------
+# Test xPhraseCount() for some different queries.
+#
+do_test 9.1 {
+  execsql { CREATE VIRTUAL TABLE t9 USING fts5(x) }
+  foreach x {
+    "a b c" "d e f"
+  } {
+    execsql { INSERT INTO t9 VALUES($x) }
+  }
+} {}
+
+foreach {tn q cnt} {
+  1 {a AND b}      2
+  2 {a OR b}       2
+  3 {a OR b OR c}  3
+  4 {NEAR(a b)}    2
+} {
+  do_execsql_test 9.2.$tn {
+    SELECT fts5_test_phrasecount(t9) FROM t9 WHERE t9 MATCH $q LIMIT 1
+  } $cnt
+}
+
+}
+
+finish_test
diff --git a/ext/fts5/test/fts5af.test b/ext/fts5/test/fts5af.test
new file mode 100644
index 0000000000000000000000000000000000000000..9c95ef2daaccc1684108794115141734babfd56b
--- /dev/null
+++ b/ext/fts5/test/fts5af.test
@@ -0,0 +1,226 @@
+# 2014 June 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS5 module.
+# 
+# More specifically, the tests in this file focus on the built-in 
+# snippet() function.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5af
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+foreach_detail_mode $testprefix {
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x, y, detail=%DETAIL%);
+}
+
+proc do_snippet_test {tn doc match res} {
+
+  uplevel #0 [list set v1 $doc]
+  uplevel #0 [list set v2 $match]
+
+  do_execsql_test $tn.1 {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES($v1, NULL);
+    SELECT snippet(t1, -1, '[', ']', '...', 7) FROM t1 WHERE t1 MATCH $v2;
+  } [list $res]
+
+  do_execsql_test $tn.2 {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES(NULL, $v1);
+    SELECT snippet(t1, -1, '[', ']', '...', 7) FROM t1 WHERE t1 MATCH $v2;
+  } [list $res]
+
+  do_execsql_test $tn.3 {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES($v1, NULL);
+    SELECT snippet(t1, -1, '[', ']', '...', 7) FROM t1 WHERE t1 MATCH $v2
+    ORDER BY rank DESC;
+  } [list $res]
+
+
+}
+
+
+foreach {tn doc res} {
+
+  1.1 {X o o o o o o} {[X] o o o o o o}
+  1.2 {o X o o o o o} {o [X] o o o o o}
+  1.3 {o o X o o o o} {o o [X] o o o o}
+  1.4 {o o o X o o o} {o o o [X] o o o}
+  1.5 {o o o o X o o} {o o o o [X] o o}
+  1.6 {o o o o o X o} {o o o o o [X] o}
+  1.7 {o o o o o o X} {o o o o o o [X]}
+
+  2.1 {X o o o o o o o} {[X] o o o o o o...}
+  2.2 {o X o o o o o o} {o [X] o o o o o...}
+  2.3 {o o X o o o o o} {o o [X] o o o o...}
+  2.4 {o o o X o o o o} {o o o [X] o o o...}
+  2.5 {o o o o X o o o} {o o o o [X] o o...}
+  2.6 {o o o o o X o o} {o o o o o [X] o...}
+  2.7 {o o o o o o X o} {o o o o o o [X]...}
+  2.8 {o o o o o o o X} {...o o o o o o [X]}
+
+  2.9  {o o o o o o o X o}       {...o o o o o [X] o}
+  2.10 {o o o o o o o X o o}     {...o o o o [X] o o}
+  2.11 {o o o o o o o X o o o}   {...o o o [X] o o o}
+  2.12 {o o o o o o o X o o o o} {...o o o [X] o o o...}
+
+
+  3.1 {X o o o o o o o o} {[X] o o o o o o...}
+  3.2 {o X o o o o o o o} {o [X] o o o o o...}
+  3.3 {o o X o o o o o o} {o o [X] o o o o...}
+  3.4 {o o o X o o o o o} {o o o [X] o o o...}
+
+  3.5 {o o o o o o o X o o o o} {...o o o [X] o o o...}
+  3.6 {o o o o o o o o X o o o} {...o o o [X] o o o}
+  3.7 {o o o o o o o o o X o o} {...o o o o [X] o o}
+  3.8 {o o o o o o o o o o X o} {...o o o o o [X] o}
+  3.9 {o o o o o o o o o o o X} {...o o o o o o [X]}
+
+  4.1 {X o o o o o X o o} {[X] o o o o o [X]...}
+  4.2 {o o o o o o o X o o o o o X o} {...[X] o o o o o [X]...}
+  4.3 {o o o o o o o o X o o o o o X} {...[X] o o o o o [X]}
+
+  5.1 {X o o o o X o o o} {[X] o o o o [X] o...}
+  5.2 {o o o o o o o X o o o o X o o} {...[X] o o o o [X] o...}
+  5.3 {o o o o o o o o X o o o o X o} {...[X] o o o o [X] o}
+  5.4 {o o o o o o o o o X o o o o X} {...o [X] o o o o [X]}
+
+  6.1 {X o o o X o o o} {[X] o o o [X] o o...}
+  6.2 {o X o o o X o o o} {o [X] o o o [X] o...}
+  6.3 {o o o o o o o X o o o X o o} {...o [X] o o o [X] o...}
+  6.4 {o o o o o o o o X o o o X o} {...o [X] o o o [X] o}
+  6.5 {o o o o o o o o o X o o o X} {...o o [X] o o o [X]}
+
+  7.1 {X o o X o o o o o} {[X] o o [X] o o o...}
+  7.2 {o X o o X o o o o} {o [X] o o [X] o o...}
+  7.3 {o o o o o o o X o o X o o o} {...o [X] o o [X] o o...}
+  7.4 {o o o o o o o o X o o X o o} {...o [X] o o [X] o o}
+  7.5 {o o o o o o o o o X o o X o} {...o o [X] o o [X] o}
+  7.6 {o o o o o o o o o o X o o X} {...o o o [X] o o [X]}
+
+  8.1 {o o o o o o o o o X o o o o o o o o o o o o o o o o X X X o o o}
+      {...o o [X] [X] [X] o o...}
+  8.2 {o o o o o o o. o o X o o o o o o o o o o o o o o o o X X X o o o} 
+      {...o o [X] o o o o...}
+  8.3 {o o o o X o o o o o o o o o o o o o o o o o o o o o X X X o o o} 
+      {o o o o [X] o o...}
+} {
+  do_snippet_test 1.$tn $doc X $res
+}
+
+if {[detail_is_full]} {
+  foreach {tn doc res} {
+    1.1 {X Y o o o o o} {[X Y] o o o o o}
+    1.2 {o X Y o o o o} {o [X Y] o o o o}
+    1.3 {o o X Y o o o} {o o [X Y] o o o}
+    1.4 {o o o X Y o o} {o o o [X Y] o o}
+    1.5 {o o o o X Y o} {o o o o [X Y] o}
+    1.6 {o o o o o X Y} {o o o o o [X Y]}
+
+    2.1 {X Y o o o o o o} {[X Y] o o o o o...}
+    2.2 {o X Y o o o o o} {o [X Y] o o o o...}
+    2.3 {o o X Y o o o o} {o o [X Y] o o o...}
+    2.4 {o o o o o o o X Y o o o} {...o o [X Y] o o o}
+    2.5 {o o o o o o o o X Y o o} {...o o o [X Y] o o}
+    2.6 {o o o o o o o o o X Y o} {...o o o o [X Y] o}
+    2.7 {o o o o o o o o o o X Y} {...o o o o o [X Y]}
+
+    3.1 {X Y o o o o o o o} {[X Y] o o o o o...}
+    3.2 {o X Y o o o o o o} {o [X Y] o o o o...}
+    3.3 {o o X Y o o o o o} {o o [X Y] o o o...}
+    3.4 {o o o o o o o X Y o o o o} {...o o [X Y] o o o...}
+    3.5 {o o o o o o o o X Y o o o} {...o o [X Y] o o o}
+    3.6 {o o o o o o o o o X Y o o} {...o o o [X Y] o o}
+    3.7 {o o o o o o o o o o X Y o} {...o o o o [X Y] o}
+    3.8 {o o o o o o o o o o o X Y} {...o o o o o [X Y]}
+  } {
+    do_snippet_test 2.$tn $doc "X + Y" $res
+  }
+}
+
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE x1 USING fts5(a, b);
+  INSERT INTO x1 VALUES('xyz', '1 2 3 4 5 6 7 8 9 10 11 12 13');
+  SELECT snippet(x1, 1, '[', ']', '...', 5) FROM x1('xyz');
+} {
+  {1 2 3 4 5...}
+}
+
+do_execsql_test 5.0 {
+  CREATE VIRTUAL TABLE p1 USING fts5(a, b, detail=%DETAIL%);
+  INSERT INTO p1 VALUES(
+    'x a a a a a a a a a a',
+    'a a a a a a a a a a a a a a a a a a a x'
+  );
+}
+do_execsql_test 5.1 {
+  SELECT snippet(p1, 0, '[', ']', '...', 6) FROM p1('x');
+} {{[x] a a a a a...}}
+
+do_execsql_test 5.2 {
+  SELECT snippet(p1, 0, '[', ']', NULL, 6) FROM p1('x');
+} {{[x] a a a a a}}
+do_execsql_test 5.3 {
+  SELECT snippet(p1, 0, NULL, ']', '...', 6) FROM p1('x');
+} {{x] a a a a a...}}
+do_execsql_test 5.4 {
+  SELECT snippet(p1, 0, '[', NULL, '...', 6) FROM p1('x');
+} {{[x a a a a a...}}
+do_execsql_test 5.5 {
+  SELECT snippet(p1, 0, '[', NULL, '...', 6) FROM p1('x OR ""');
+} {{[x a a a a a...}}
+do_execsql_test 5.6 {
+  SELECT snippet(p1, 0, '[', NULL, '...', 6) FROM p1('x OR ' || x'DB');
+} {{[x a a a a a...}}
+
+} ;# foreach_detail_mode 
+
+reset_db
+do_execsql_test 6.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(colA, colB);
+  INSERT INTO t1 VALUES('A B C', 'D E F');
+}
+
+do_execsql_test 6.1 {
+  SELECT colA, colB, snippet(t1,0,'[', ']','...',1) FROM t1 WHERE t1 MATCH 'B';
+} {{A B C} {D E F} ...[B]...}
+breakpoint
+do_execsql_test 6.2 {
+  SELECT colA, colB, snippet(t1, 1,'[',']','...',2) FROM t1 WHERE t1 MATCH 'B';
+} {{A B C} {D E F} {D E...}}
+do_execsql_test 6.3 {
+  SELECT colA, colB, snippet(t1, 1,'[',']','...',1) FROM t1 WHERE t1 MATCH 'B';
+} {{A B C} {D E F} {D...}}
+
+do_execsql_test 6.1 {
+  SELECT colA, colB, snippet(t1,0,'[', ']','...',1) FROM t1 WHERE t1 MATCH 'A';
+} {{A B C} {D E F} [A]...}
+breakpoint
+do_execsql_test 6.2 {
+  SELECT colA, colB, snippet(t1, 1,'[',']','...',2) FROM t1 WHERE t1 MATCH 'A';
+} {{A B C} {D E F} {D E...}}
+do_execsql_test 6.3 {
+  SELECT colA, colB, snippet(t1, 1,'[',']','...',1) FROM t1 WHERE t1 MATCH 'A';
+} {{A B C} {D E F} {D...}}
+
+
+
+finish_test
diff --git a/ext/fts5/test/fts5ag.test b/ext/fts5/test/fts5ag.test
new file mode 100644
index 0000000000000000000000000000000000000000..42cd9137847c4d21936478871f86a1cdeac557a4
--- /dev/null
+++ b/ext/fts5/test/fts5ag.test
@@ -0,0 +1,144 @@
+# 2014 June 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS5 module.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5ag
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+#-------------------------------------------------------------------------
+# This file attempts to verify that the extension APIs work with 
+# "ORDER BY rank" queries. This is done by comparing the results of
+# the fts5_test() function when run with queries of the form:
+#
+#      ... WHERE fts MATCH ? ORDER BY bm25(fts) [ASC|DESC]
+#
+# and
+#
+#      ... WHERE fts MATCH ? ORDER BY rank [ASC|DESC]
+#
+
+foreach_detail_mode $testprefix {
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x, y, z, detail=%DETAIL%);
+}
+
+do_test 1.1 {
+  foreach {x y z} {
+    {j s m y m r n l u k} {z k f u z g h s w g} {r n o s s b v n w w}
+    {m v g n d x q r r s} {q t d a q a v l h j} {s k l f s i n v q v}
+    {m f f d h h s o h a} {y e v r q i u m h d} {b c k q m z l z h n}
+    {j e m v k p e c j m} {m p v z d x l n i a} {v p u p m t p q i f}
+    {v r w l e e t d z p} {c s b w k m n k o u} {w g y f v w v w v p}
+    {k d g o u j p z n o} {t g e q l z i g b j} {f i q q j y h b g h}
+    {j s w x o t j b t m} {v a v v r t x c q a} {r t k x w u l h a g}
+    {j y b i u d e m d w} {y s o j h i n a u p} {n a g b u c w e b m}
+    {b c k s c w j p w b} {m o c o w o b d q q} {n t y o y z y r z e}
+    {p n q l e l h z q c} {n s e i h c v b b u} {m p d i t a o o f f}
+    {k c o n v e z l b m} {s m n i n s d e s u} {t a u e q d a o u c}
+    {h d t o i a g b b p} {k x c i g f g b b k} {x f i v n a n n j i}
+    {f z k r b u s k z e} {n z v z w l e r h t} {t i s v v a v p n s}
+    {k f e c t z r e f d} {f m g r c w q k b v} {v y s y f r b f e f}
+    {z r c t d q q h x b} {u c g z n z u v s s} {y t n f f x b f d x}
+    {u n p n u t i m e j} {p j j d m f k p m z} {d o l v c o e a h w}
+    {h o q w t f v i c y} {c q u n r z s l l q} {z x a q w s b w s y}
+    {y m s x k i m n x c} {b i a n v h z n k a} {w l q p b h h g d y}
+    {z v s j f p v l f w} {c s b i z e k i g c} {x b v d w j f e d z}
+    {r k k j e o m k g b} {h b d c h m y b t u} {u j s h k z c u d y}
+    {v h i v s y z i k l} {d t m w q w c a z p} {r s e s x v d w k b}
+    {u r e q j y h o o s} {x x z r x y t f j s} {k n h x i i u e c v}
+    {q l f d a p w l q o} {y z q w j o p b o v} {s u h z h f d f n l}
+    {q o e o x x l g q i} {j g m h q q w c d b} {o m d h w a g b f n}
+    {m x k t s s y l v a} {j x t c a u w b w g} {n f j b v x y p u t}
+    {u w k a q b u w k w} {a h j u o w f s k p} {j o f s h y t j h g}
+    {x v b l m t l m h l} {t p y i y i q b q a} {k o o z w a c h c f}
+    {j g c d k w b d t v} {a k v c m a v h v p} {i c a i j g h l j h}
+    {l m v l c z j b p b} {z p z f l n k i b a} {j v q k g i x g i b}
+    {m c i w u z m i s z} {i z r f n l q z k w} {x n b p b q r g i z}
+    {d g i o o x l f x d} {r t m f b n q y c b} {i u g k w x n m p o}
+    {t o s i q d z x d t} {v a k s q z j c o o} {z f n n r l y w v v}
+    {w k h d t l j g n n} {r z m v y b l n c u} {v b v s c l n k g v}
+    {m a g r a b u u n z} {u y l h v w v k b f} {x l p g i s j f x v}
+    {v s g x k z a k a r} {l t g v j q l k p l} {f h n a x t v s t y}
+    {z u v u x p s j y t} {g b q e e g l n w g} {e n p j i g j f u r}
+    {q z l t w o l m p e} {t s g h r p r o t z} {y b f a o n u m z g}
+    {d t w n y b o g f o} {d a j e r l g g s h} {d z e l w q l t h f}
+    {f l u w q v x j a h} {f n u l l d m h h w} {d x c c e r o d q j}
+    {b y f q s q f u l g} {u z w l f d b i a g} {m v q b g u o z e z}
+    {h z p t s e x i v m} {l h q m e o x x x j} {e e d n p r m g j f}
+    {k h s g o n s d a x} {u d t t s j o v h a} {z r b a e u v o e s}
+    {m b b g a f c p a t} {w c m j o d b l g e} {f p j p m o s y v j}
+    {c r n h d w c a b l} {s g e u s d n j b g} {b o n a x a b x y l}
+    {r h u x f c d z n o} {x y l g u m i i w d} {t f h b z v r s r g}
+    {t i o r b v g g p a} {d x l u q k m o s u} {j f h t u n z u k m}
+    {g j t y d c n j y g} {w e s k v c w i g t} {g a h r g v g h r o}
+    {e j l a q j g i n h} {d z k c u p n u p p} {t u e e v z v r r g}
+    {l j s g k j k h z l} {p v d a t x d e q u} {r l u z b m g k s j}
+    {i e y d u x d i n l} {p f z k m m w p u l} {z l p m r q w n d a}
+  } {
+    execsql { INSERT INTO t1 VALUES($x, $y, $z) }
+  }
+  set {} {}
+} {}
+
+fts5_aux_test_functions db
+
+proc do_fts5ag_test {tn E} {
+  set q1 {SELECT fts5_test_all(t1) FROM t1 WHERE t1 MATCH $E ORDER BY rank}
+  set q2 {SELECT fts5_test_all(t1) FROM t1 WHERE t1 MATCH $E ORDER BY bm25(t1)}
+
+  set res [execsql $q1]
+  set expected [execsql $q2]
+  uplevel [list do_test $tn.1 [list set {} $res] $expected]
+
+  append q1 " DESC"
+  append q2 " DESC"
+
+  set res [execsql $q1]
+  set expected [execsql $q2]
+  uplevel [list do_test $tn.2 [list set {} $res] $expected]
+}
+
+foreach {tn expr} {
+  2.1 a
+  2.2 b
+  2.3 c
+  2.4 d
+
+  3.0 {a AND b}
+  3.1 {a OR b}
+  3.2 {b OR c AND d}
+} {
+  do_fts5ag_test $tn $expr
+}
+
+if {[detail_is_full]} {
+  foreach {tn expr} {
+    4.1 {"m m"}
+    4.2 {e + s}
+    4.3 {NEAR(c d)}
+  } {
+    do_fts5ag_test $tn $expr
+  }
+}
+
+} ;# foreach_detail_mode
+
+
+finish_test
diff --git a/ext/fts5/test/fts5ah.test b/ext/fts5/test/fts5ah.test
new file mode 100644
index 0000000000000000000000000000000000000000..bf9c9e9dbc9368875d078561d67df3489878a245
--- /dev/null
+++ b/ext/fts5/test/fts5ah.test
@@ -0,0 +1,181 @@
+# 2014 June 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS5 module.
+#
+# TESTRUNNER: slow
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5ah
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+foreach_detail_mode $testprefix {
+
+#-------------------------------------------------------------------------
+# This file contains tests for very large doclists.
+#
+
+set Y [list]
+set W [list]
+do_test 1.0 {
+  execsql { CREATE VIRTUAL TABLE t1 USING fts5(a, detail=%DETAIL%) }
+  execsql { INSERT INTO t1(t1, rank) VALUES('pgsz', 128) }
+  set v {w w w w w w w w w w w w w w w w w w w w}
+  execsql { INSERT INTO t1(rowid, a) VALUES(0, $v) }
+  for {set i 1} {$i <= 10000} {incr i} {
+    set v {x x x x x x x x x x x x x x x x x x x x}
+    if {($i % 2139)==0} {lset v 3 Y ; lappend Y $i}
+    if {($i % 1577)==0} {lset v 5 W ; lappend W $i}
+    execsql { INSERT INTO t1 VALUES($v) }
+  }
+  set v {w w w w w w w w w w w w w w w w w w w w}
+  execsql { INSERT INTO t1 VALUES($v) }
+} {}
+
+do_execsql_test 1.1.1 {
+  SELECT rowid FROM t1 WHERE t1 MATCH 'x AND w'
+} [lsort -integer -incr $W]
+
+do_execsql_test 1.1.2 {
+  SELECT rowid FROM t1 WHERE t1 MATCH 'x* AND w*'
+} [lsort -integer -incr $W]
+
+do_execsql_test 1.2 {
+  SELECT rowid FROM t1 WHERE t1 MATCH 'y AND x'
+} [lsort -integer -incr $Y]
+
+do_execsql_test 1.3 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+}
+
+proc reads {} {
+  db one {SELECT t1 FROM t1 WHERE t1 MATCH '*reads'}
+}
+
+proc execsql_reads {sql} {
+  set nRead [reads]
+  execsql $sql
+  expr [reads] - $nRead
+}
+
+do_test 1.4 {
+  set nRead [reads]
+  execsql { SELECT rowid FROM t1 WHERE t1 MATCH 'x' }
+  set nReadX [expr [reads] - $nRead]
+  #puts -nonewline "(nReadX=$nReadX)"
+  if {[detail_is_full]} { set expect 1000 }
+  if {[detail_is_col]}  { set expect 250 }
+  if {[detail_is_none]} { set expect 80 }
+
+  expr $nReadX>$expect
+} {1}
+
+do_test 1.5 {
+  set fwd [execsql_reads {SELECT rowid FROM t1 WHERE t1 MATCH 'x' }]
+  set bwd [execsql_reads {
+    SELECT rowid FROM t1 WHERE t1 MATCH 'x' ORDER BY 1 ASC 
+  }]
+  expr {$bwd < $fwd + 12}
+} {1}
+
+foreach {tn q res} "
+  1 { SELECT rowid FROM t1 WHERE t1 MATCH 'w + x'   }  [list $W]
+  2 { SELECT rowid FROM t1 WHERE t1 MATCH 'x + w'   }  [list $W]
+  3 { SELECT rowid FROM t1 WHERE t1 MATCH 'x AND w' }  [list $W]
+  4 { SELECT rowid FROM t1 WHERE t1 MATCH 'y AND x' }  [list $Y]
+" {
+  if {[detail_is_full]==0 && ($tn==1 || $tn==2)} continue
+
+  if {[detail_is_full]} { set ratio 8 }
+  if {[detail_is_col]}  { set ratio 4 }
+  if {[detail_is_none]} { set ratio 2 }
+
+  do_test 1.6.$tn.1 {
+    set n [execsql_reads $q]
+    #puts -nonewline "(n=$n nReadX=$nReadX)"
+    expr {$n < ($nReadX / $ratio)}
+  } {1}
+
+  do_test 1.6.$tn.2 {
+    set n [execsql_reads "$q ORDER BY rowid DESC"]
+    #puts -nonewline "(n=$n nReadX=$nReadX)"
+    expr {$n < ($nReadX / $ratio)}
+  } {1}
+
+  do_execsql_test 1.6.$tn.3 $q [lsort -int -incr $res]
+  do_execsql_test 1.6.$tn.4 "$q ORDER BY rowid DESC" [lsort -int -decr $res]
+}
+
+#-------------------------------------------------------------------------
+# Now test that adding range constraints on the rowid field reduces the
+# number of pages loaded from disk.
+#
+foreach {tn fraction tail cnt} {
+  1  0.6 {rowid > 5000} 5000
+  2  0.2 {rowid > 9000} 1000
+  3  0.2 {rowid < 1000}  999
+  4  0.2 {rowid BETWEEN 4000 AND 5000}  1001
+  5  0.6 {rowid >= 5000} 5001
+  6  0.2 {rowid >= 9000} 1001
+  7  0.2 {rowid <= 1000} 1000
+  8  0.6 {rowid > '5000'} 5000
+  9  0.2 {rowid > '9000'} 1000
+  10 0.1 {rowid = 444} 1
+} {
+  set q "SELECT rowid FROM t1 WHERE t1 MATCH 'x' AND $tail"
+  set n [execsql_reads $q]
+  set ret [llength [execsql $q]]
+
+  # Because the position lists for 'x' are quite long in this db, the 
+  # advantage is a bit smaller in detail=none mode. Update $fraction to 
+  # reflect this.
+  if {[detail_is_none] && $fraction<0.5} { set fraction [expr $fraction*2] }
+
+  do_test "1.7.$tn.asc.(n=$n ret=$ret)" {
+    expr {$n < ($fraction*$nReadX) && $ret==$cnt}
+  } {1}
+
+  set q "SELECT rowid FROM t1 WHERE t1 MATCH 'x' AND $tail ORDER BY rowid DESC"
+  set n [execsql_reads $q]
+  set ret [llength [execsql $q]]
+  do_test "1.7.$tn.desc.(n=$n ret=$ret)" {
+    expr {$n < 2*$fraction*$nReadX && $ret==$cnt}
+  } {1}
+}
+
+do_execsql_test 1.8.1 {
+  SELECT count(*) FROM t1 WHERE t1 MATCH 'x' AND +rowid < 'text';
+} {10000}
+do_execsql_test 1.8.2 {
+  SELECT count(*) FROM t1 WHERE t1 MATCH 'x' AND rowid < 'text';
+} {10000}
+
+do_execsql_test 1.8.3 {
+  SELECT count(*) FROM t1 WHERE t1 MATCH 'x' AND rowid<5000 AND rowid < 'text';
+} {4999}
+do_execsql_test 1.8.4 {
+  SELECT count(*) FROM t1 WHERE t1 MATCH 'x' AND rowid>5000 AND rowid > 'text';
+} {0}
+
+do_catchsql_test 1.9 {
+  SELECT * FROM t1('*xy');
+} {1 {unknown special query: xy}}
+
+} ;# foreach_detail_mode
+
+#db eval {SELECT rowid, fts5_decode(rowid, block) aS r FROM t1_data} {puts $r}
+
+finish_test
diff --git a/ext/fts5/test/fts5ai.test b/ext/fts5/test/fts5ai.test
new file mode 100644
index 0000000000000000000000000000000000000000..a6576d3afc2110dc35d59c20c7a4babcf0837af4
--- /dev/null
+++ b/ext/fts5/test/fts5ai.test
@@ -0,0 +1,63 @@
+# 2014 June 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS5 module.
+#
+# Specifically, it tests transactions and savepoints
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5ai
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+foreach_detail_mode $testprefix {
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, detail=%DETAIL%);
+} {}
+
+do_execsql_test 1.1 {
+  BEGIN;
+    INSERT INTO t1 VALUES('a b c');
+    INSERT INTO t1 VALUES('d e f');
+    SAVEPOINT one;
+      INSERT INTO t1 VALUES('g h i');
+      SAVEPOINT two;
+        INSERT INTO t1 VALUES('j k l');
+    ROLLBACK TO one;
+      INSERT INTO t1 VALUES('m n o');
+        SAVEPOINT two;
+        INSERT INTO t1 VALUES('p q r');
+    RELEASE one;
+    SAVEPOINT one;
+      INSERT INTO t1 VALUES('s t u');
+    ROLLBACK TO one;
+  COMMIT;
+}
+
+do_execsql_test 1.2 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+}
+
+do_execsql_test 1.3 {
+  SAVEPOINT one;
+    INSERT INTO t1 VALUES('v w x');
+  ROLLBACK TO one;
+}
+}
+
+
+finish_test
diff --git a/ext/fts5/test/fts5aj.test b/ext/fts5/test/fts5aj.test
new file mode 100644
index 0000000000000000000000000000000000000000..e802306b388230a6e777ce83fa82e9e50810f6a9
--- /dev/null
+++ b/ext/fts5/test/fts5aj.test
@@ -0,0 +1,68 @@
+# 2014 June 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS5 module.
+#
+# Specifically, this tests that, provided the amount of data remains 
+# constant, the FTS index does not grow indefinitely as rows are inserted 
+# and deleted,
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5aj
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+proc doc {} {
+  set dict [list a b c d e f g h i j k l m n o p q r s t u v w x y z]
+  set res [list]
+  for {set i 0} {$i < 20} {incr i} {
+    lappend res [lindex $dict [expr int(rand() * 26)]]
+  }
+  set res
+}
+
+proc structure {} {
+  set val [db one {SELECT fts5_decode(rowid,block) FROM t1_data WHERE rowid=10}]
+  foreach lvl [lrange $val 1 end] {
+    lappend res [expr [llength $lvl]-2]
+  }
+  set res
+}
+
+expr srand(0)
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x);
+  INSERT INTO t1(t1, rank) VALUES('pgsz', 64);
+}
+
+for {set iTest 0} {$iTest < 50000} {incr iTest} {
+  if {$iTest > 1000} { execsql { DELETE FROM t1 WHERE rowid=($iTest-1000) } }
+  set new [doc]
+  execsql { INSERT INTO t1 VALUES($new) }
+  if {$iTest==10000} { set sz1 [db one {SELECT count(*) FROM t1_data}] }
+  if {0==($iTest % 1000)} {
+    set sz [db one {SELECT count(*) FROM t1_data}]
+    set s [structure]
+    do_execsql_test 1.$iTest.$sz.{$s} {
+      INSERT INTO t1(t1) VALUES('integrity-check') 
+    }
+  }
+}
+
+do_execsql_test 2.0 { INSERT INTO t1(t1) VALUES('integrity-check') }
+
+
+finish_test
diff --git a/ext/fts5/test/fts5ak.test b/ext/fts5/test/fts5ak.test
new file mode 100644
index 0000000000000000000000000000000000000000..253f14fc7986913a93690832285f3262f22eb605
--- /dev/null
+++ b/ext/fts5/test/fts5ak.test
@@ -0,0 +1,183 @@
+# 2014 November 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS5 module.
+#
+# Specifically, the auxiliary function "highlight".
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5ak
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+foreach_detail_mode $testprefix {
+
+do_execsql_test 1.1 {
+  CREATE VIRTUAL TABLE ft1 USING fts5(x, detail=%DETAIL%);
+  INSERT INTO ft1 VALUES('i d d a g i b g d d');
+  INSERT INTO ft1 VALUES('h d b j c c g a c a');
+  INSERT INTO ft1 VALUES('e j a e f h b f h h');
+  INSERT INTO ft1 VALUES('j f h d g h i b d f');
+  INSERT INTO ft1 VALUES('d c j d c j b c g e');
+  INSERT INTO ft1 VALUES('i a d e g j g d a a');
+  INSERT INTO ft1 VALUES('j f c e d a h j d b');
+  INSERT INTO ft1 VALUES('i c c f a d g h j e');
+  INSERT INTO ft1 VALUES('i d i g c d c h b f');
+  INSERT INTO ft1 VALUES('g d a e h a b c f j');
+
+  CREATE VIRTUAL TABLE ft2 USING fts5(x, detail=%DETAIL%);
+  INSERT INTO ft2 VALUES('a b c d e f g h i j');
+}
+
+do_execsql_test 1.2 {
+  SELECT highlight(ft1, 0, '[', ']') FROM ft1 WHERE ft1 MATCH 'e';
+} {
+  {[e] j a [e] f h b f h h}
+  {d c j d c j b c g [e]}
+  {i a d [e] g j g d a a}
+  {j f c [e] d a h j d b}
+  {i c c f a d g h j [e]}
+  {g d a [e] h a b c f j}
+}
+
+do_execsql_test 1.3 {
+  SELECT highlight(ft1, 0, '[', ']') FROM ft1 WHERE ft1 MATCH 'e e e'
+} {
+  {[e] j a [e] f h b f h h}
+  {d c j d c j b c g [e]}
+  {i a d [e] g j g d a a}
+  {j f c [e] d a h j d b}
+  {i c c f a d g h j [e]}
+  {g d a [e] h a b c f j}
+}
+
+do_execsql_test 1.4 {
+  SELECT highlight(ft2, 0, '[', ']') FROM ft2 WHERE ft2 MATCH 'f d'
+} {
+  {a b c [d] e [f] g h i j}
+}
+
+do_execsql_test 1.5 {
+  SELECT highlight(ft2, 0, '[', ']') FROM ft2 WHERE ft2 MATCH 'd f'
+} {
+  {a b c [d] e [f] g h i j}
+}
+
+#-------------------------------------------------------------------------
+# Tests below this point require detail=full.
+#-------------------------------------------------------------------------
+if {[detail_is_full]==0} continue
+
+
+do_execsql_test 2.1 {
+  SELECT highlight(ft1, 0, '[', ']') FROM ft1 WHERE ft1 MATCH 'h + d';
+} {
+  {[h d] b j c c g a c a}
+  {j f [h d] g h i b d f} 
+}
+
+do_execsql_test 2.2 {
+  SELECT highlight(ft1, 0, '[', ']') FROM ft1 WHERE ft1 MATCH 'd + d';
+} {
+  {i [d d] a g i b g [d d]}
+}
+
+do_execsql_test 2.3 {
+  SELECT highlight(ft1, 0, '[', ']') FROM ft1 WHERE ft1 MATCH 'd + d d + d';
+} {
+  {i [d d] a g i b g [d d]}
+}
+
+do_execsql_test 2.4 {
+  SELECT highlight(ft2, 0, '[', ']') FROM ft2 WHERE ft2 MATCH 'b+c+d c+d+e'
+} {{a [b c d e] f g h i j}}
+
+do_execsql_test 2.5 {
+  SELECT highlight(ft2, 0, '[', ']') FROM ft2 WHERE ft2 MATCH 'b+c+d e+f+g'
+} {
+  {a [b c d] [e f g] h i j}
+}
+
+do_execsql_test 2.6 {
+  SELECT highlight(ft2, 0, '[', ']') FROM ft2 WHERE ft2 MATCH 'b+c+d c'
+} {
+  {a [b c d] e f g h i j}
+}
+
+do_execsql_test 2.7 {
+  SELECT highlight(ft2, 0, '[', ']') FROM ft2 WHERE ft2 MATCH 'b+c c+d+e'
+} {
+  {a [b c d e] f g h i j}
+}
+
+#-------------------------------------------------------------------------
+# The example from the docs.
+#
+do_execsql_test 3.1 {
+  -- Assuming this:
+  CREATE VIRTUAL TABLE ft USING fts5(a, detail=%DETAIL%);
+  INSERT INTO ft VALUES('a b c x c d e');
+  INSERT INTO ft VALUES('a b c c d e');
+  INSERT INTO ft VALUES('a b c d e');
+
+  -- The following SELECT statement returns these three rows:
+  --   '[a b c] x [c d e]'
+  --   '[a b c] [c d e]'
+  --   '[a b c d e]'
+  SELECT highlight(ft, 0, '[', ']') FROM ft WHERE ft MATCH 'a+b+c AND c+d+e';
+} {
+  {[a b c] x [c d e]}
+  {[a b c] [c d e]}
+  {[a b c d e]}
+}
+
+do_execsql_test 3.2 {
+  SELECT highlight(ft, 0, NULL, NULL) FROM ft WHERE ft MATCH 'a+b+c AND c+d+e';
+} {
+  {a b c x c d e}
+  {a b c c d e}
+  {a b c d e}
+}
+
+}
+
+# 2023-04-06 https://sqlite.org/forum/forumpost/cae4367d9b
+#
+# This is not a test of FTS5, but rather a test of the of what happens to
+# prepared statements that encounter SQLITE_SCHEMA while other prepared
+# statements are running.  The original problem POC used FTS5, and so
+# is seems reasonable to put the test here.
+#
+# The vdbeaux24.test module in TH3 also tests this same behavior but
+# without requiring FTS5 or an other extension.
+#
+reset_db
+db null NULL
+do_execsql_test 4.0 {
+  CREATE TABLE t5(a PRIMARY KEY);
+  INSERT INTO t5 VALUES(0);
+  CREATE VIRTUAL TABLE t6 USING fts5(0);
+  DELETE FROM t6;
+  CREATE TABLE t7(x);
+  WITH cte(a) AS (
+     SELECT a FROM t5
+      WHERE ((0,0) IN (SELECT 0, LAG(0) OVER (PARTITION BY 0) FROM t6), 0)
+               < (a,0)
+  )
+  SELECT max(a) FROM cte;
+} NULL
+
+finish_test
diff --git a/ext/fts5/test/fts5al.test b/ext/fts5/test/fts5al.test
new file mode 100644
index 0000000000000000000000000000000000000000..7187ad67c7f358690fdc7c70f8b510938400d2b0
--- /dev/null
+++ b/ext/fts5/test/fts5al.test
@@ -0,0 +1,309 @@
+# 2014 November 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS5 module.
+#
+# Specifically, this function tests the %_config table.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5al
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+foreach_detail_mode $testprefix {
+
+do_execsql_test 1.1 {
+  CREATE VIRTUAL TABLE ft1 USING fts5(x, detail=%DETAIL%);
+  SELECT * FROM ft1_config;
+} {version 4}
+
+do_execsql_test 1.2 {
+  INSERT INTO ft1(ft1, rank) VALUES('pgsz', 32);
+  SELECT * FROM ft1_config;
+} {pgsz 32 version 4}
+
+do_execsql_test 1.3 {
+  INSERT INTO ft1(ft1, rank) VALUES('pgsz', 64);
+  SELECT * FROM ft1_config;
+} {pgsz 64 version 4}
+
+#--------------------------------------------------------------------------
+# Test the logic for parsing the rank() function definition.
+#
+foreach {tn defn} {
+  1 "fname()"
+  2 "fname(1)"
+  3 "fname(1,2)"
+  4 "fname(null,NULL,nUlL)"
+  5 "  fname    (   null  ,   NULL  ,  nUlL  )  "
+  6 "fname('abc')"
+  7 "fname('a''bc')"
+  8 "fname('''abc')"
+  9 "fname('abc''')"
+
+  7 "fname(  'a''bc'  )"
+  8 "fname('''abc'  )"
+  9 "fname(  'abc''' )"
+
+  10 "fname(X'1234ab')"
+
+  11 "myfunc(1.2)"
+  12 "myfunc(-1.0)"
+  13 "myfunc(.01,'abc')"
+} {
+  do_execsql_test 2.1.$tn {
+    INSERT INTO ft1(ft1, rank) VALUES('rank', $defn);
+  }
+}
+
+foreach {tn defn} {
+  1 ""
+  2 "fname"
+  3 "fname(X'234ab')"
+  4 "myfunc(-1.,'abc')"
+} {
+  do_test 2.2.$tn {
+    catchsql { INSERT INTO ft1(ft1, rank) VALUES('rank', $defn) }
+  } {1 {SQL logic error}}
+}
+
+#-------------------------------------------------------------------------
+# Assorted tests of the tcl interface for creating extension functions.
+#
+
+do_execsql_test 3.1 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x, detail=%DETAIL%);
+  INSERT INTO t1 VALUES('q w e r t y');
+  INSERT INTO t1 VALUES('y t r e w q');
+}
+
+proc argtest {cmd args} { return $args }
+sqlite3_fts5_create_function db argtest argtest
+
+do_execsql_test 3.2.1 {
+  SELECT argtest(t1, 123) FROM t1 WHERE t1 MATCH 'q'
+} {123 123}
+
+do_execsql_test 3.2.2 {
+  SELECT argtest(t1, 123, 456) FROM t1 WHERE t1 MATCH 'q'
+} {{123 456} {123 456}}
+
+proc rowidtest {cmd} { $cmd xRowid }
+sqlite3_fts5_create_function db rowidtest rowidtest
+
+do_execsql_test 3.3.1 {
+  SELECT rowidtest(t1) FROM t1 WHERE t1 MATCH 'q'
+} {1 2}
+
+proc insttest {cmd} {
+  set res [list]
+  for {set i 0} {$i < [$cmd xInstCount]} {incr i} {
+    lappend res [$cmd xInst $i]
+  }
+  set res
+}
+sqlite3_fts5_create_function db insttest insttest
+
+do_execsql_test 3.4.1 {
+  SELECT insttest(t1) FROM t1 WHERE t1 MATCH 'q'
+} {
+  {{0 0 0}}
+  {{0 0 5}} 
+}
+
+if {[detail_is_full]} {
+  do_execsql_test 3.4.2 {
+    SELECT insttest(t1) FROM t1 WHERE t1 MATCH 'r+e OR w'
+  } {
+    {{1 0 1}}
+    {{0 0 2} {1 0 4}} 
+  }
+}
+
+proc coltest {cmd} {
+  list [$cmd xColumnSize 0] [$cmd xColumnText 0]
+}
+sqlite3_fts5_create_function db coltest coltest
+
+do_execsql_test 3.5.1 {
+  SELECT coltest(t1) FROM t1 WHERE t1 MATCH 'q'
+} {
+  {6 {q w e r t y}}
+  {6 {y t r e w q}} 
+}
+
+#-------------------------------------------------------------------------
+# Tests for remapping the "rank" column.
+#
+#   4.1.*: Mapped to a function with no arguments.
+#   4.2.*: Mapped to a function with one or more arguments.
+#
+
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE t2 USING fts5(a, b, detail=%DETAIL%);
+  INSERT INTO t2 VALUES('a s h g s b j m r h', 's b p a d b b a o e');
+  INSERT INTO t2 VALUES('r h n t a g r d d i', 'l d n j r c f t o q');
+  INSERT INTO t2 VALUES('q k n i k c a a e m', 'c h n j p g s c i t');
+  INSERT INTO t2 VALUES('h j g t r e l s g s', 'k q k c i i c k n s');
+  INSERT INTO t2 VALUES('b l k h d n n n m i', 'p t i a r b t q o l');
+  INSERT INTO t2 VALUES('k r i l j b g i p a', 't q c h a i m g n l');
+  INSERT INTO t2 VALUES('a e c q n m o m d g', 'l c t g i s q g q e');
+  INSERT INTO t2 VALUES('b o j h f o g b p e', 'r t l h s b g i c p');
+  INSERT INTO t2 VALUES('s q k f q b j g h f', 'n m a o p e i e k t');
+  INSERT INTO t2 VALUES('o q g g q c o k a b', 'r t k p t f t h p c');
+}
+
+proc firstinst {cmd} { 
+  foreach {p c o} [$cmd xInst 0] {}
+  expr $c*100 + $o
+}
+sqlite3_fts5_create_function db firstinst firstinst
+
+do_execsql_test 4.1.1 {
+  SELECT rowid, firstinst(t2) FROM t2 WHERE t2 MATCH 'a' ORDER BY rowid ASC
+} {
+  1 0 2 4 3 6   5  103
+  6 9 7 0 9 102 10 8
+}
+
+do_execsql_test 4.1.2 {
+  SELECT rowid, rank FROM t2 
+  WHERE t2 MATCH 'a' AND rank MATCH 'firstinst()' 
+  ORDER BY rowid ASC
+} {
+  1 0 2 4 3 6   5  103
+  6 9 7 0 9 102 10 8
+}
+
+do_execsql_test 4.1.3 {
+  SELECT rowid, rank FROM t2 
+  WHERE t2 MATCH 'a' AND rank MATCH 'firstinst()'
+  ORDER BY rank DESC
+} {
+  5 103  9 102  6 9  10 8  3 6  2 4  1 0  7 0  
+}
+
+do_execsql_test 4.1.4 {
+  INSERT INTO t2(t2, rank) VALUES('rank', 'firstinst()');
+  SELECT rowid, rank FROM t2 WHERE t2 MATCH 'a' ORDER BY rowid ASC
+} {
+  1 0 2 4 3 6   5  103
+  6 9 7 0 9 102 10 8
+}
+
+do_execsql_test 4.1.5 {
+  SELECT rowid, rank FROM t2 WHERE t2 MATCH 'a' ORDER BY rank DESC
+} {
+  5 103  9 102  6 9  10 8  3 6  2 4  1 0  7 0  
+}
+
+do_execsql_test 4.1.6 {
+  INSERT INTO t2(t2, rank) VALUES('rank', 'firstinst (    ) ');
+  SELECT rowid, rank FROM t2 WHERE t2 MATCH 'a' ORDER BY rank DESC
+} {
+  5 103  9 102  6 9  10 8  3 6  2 4   1 0  7 0  
+}
+
+proc rowidplus {cmd ival} { 
+  expr [$cmd xRowid] + $ival
+}
+sqlite3_fts5_create_function db rowidplus rowidplus
+
+if {[detail_is_full]} {
+  do_execsql_test 4.2.1 {
+    INSERT INTO t2(t2, rank) VALUES('rank', 'rowidplus(100) ');
+    SELECT rowid, rank FROM t2 WHERE t2 MATCH 'o + q + g'
+  } {
+    10 110
+  }
+  do_execsql_test 4.2.2 {
+    INSERT INTO t2(t2, rank) VALUES('rank', 'rowidplus(111) ');
+    SELECT rowid, rank FROM t2 WHERE t2 MATCH 'o + q + g'
+  } {
+    10 121
+  }
+
+  do_execsql_test 4.2.3 {
+    SELECT rowid, rank FROM t2 
+      WHERE t2 MATCH 'o + q + g' AND rank MATCH 'rowidplus(112)'
+  } {
+    10 122
+  }
+}
+
+proc rowidmod {cmd imod} { 
+  expr [$cmd xRowid] % $imod
+}
+sqlite3_fts5_create_function db rowidmod rowidmod
+do_execsql_test 4.3.1 {
+  CREATE VIRTUAL TABLE t3 USING fts5(x, detail=%DETAIL%);
+  INSERT INTO t3 VALUES('a one');
+  INSERT INTO t3 VALUES('a two');
+  INSERT INTO t3 VALUES('a three');
+  INSERT INTO t3 VALUES('a four');
+  INSERT INTO t3 VALUES('a five');
+  INSERT INTO t3(t3, rank) VALUES('rank', 'bm25()');
+}
+
+do_execsql_test 4.3.2 {
+  SELECT * FROM t3
+  WHERE t3 MATCH 'a' AND rank MATCH 'rowidmod(4)' 
+  ORDER BY rank ASC
+} {
+  {a four} {a one} {a five} {a two} {a three}
+}
+
+do_execsql_test 4.3.3 {
+  SELECT *, rank FROM t3
+  WHERE t3 MATCH 'a' AND rank MATCH 'rowidmod(3)' 
+  ORDER BY rank ASC
+} {
+  {a three} 0 {a one} 1 {a four} 1 {a two} 2 {a five} 2 
+}
+
+do_execsql_test 4.3.4 {
+  SELECT * FROM t3('a', 'rowidmod(4)') ORDER BY rank ASC;
+} {
+  {a four} {a one} {a five} {a two} {a three}
+}
+
+do_execsql_test 4.3.5 {
+  SELECT *, rank FROM t3('a', 'rowidmod(3)') ORDER BY rank ASC
+} {
+  {a three} 0 {a one} 1 {a four} 1 {a two} 2 {a five} 2 
+}
+
+do_catchsql_test 4.4.3 {
+  SELECT *, rank FROM t3 WHERE t3 MATCH 'a' AND rank MATCH 'xyz(3)' 
+} {1 {no such function: xyz}}
+do_catchsql_test 4.4.4 {
+  SELECT *, rank FROM t3 WHERE t3 MATCH 'a' AND rank MATCH NULL
+} {1 {parse error in rank function: }}
+
+# Check that the second and subsequent rank= constraints are ignored.
+#
+do_catchsql_test 4.3.3 {
+  SELECT *, rank FROM t3
+  WHERE t3 MATCH 'a' AND 
+  rank MATCH 'nosuch()' AND
+  rank MATCH 'rowidmod(3)'  
+  ORDER BY rank ASC
+} {1 {unable to use function MATCH in the requested context}}
+
+} ;# foreach_detail_mode
+
+
+finish_test
diff --git a/ext/fts5/test/fts5alter.test b/ext/fts5/test/fts5alter.test
new file mode 100644
index 0000000000000000000000000000000000000000..bb5f78dc86f09559d12ef9cab1f1494ccd430618
--- /dev/null
+++ b/ext/fts5/test/fts5alter.test
@@ -0,0 +1,101 @@
+# 2015 Jun 10
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# The tests in this file focus on renaming FTS5 tables using the
+# "ALTER TABLE ... RENAME TO ..." command
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5alter
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+#-------------------------------------------------------------------------
+# Test renaming regular, contentless and columnsize=0 FTS5 tables.
+#
+do_execsql_test 1.1.0 {
+  CREATE VIRTUAL TABLE "a x" USING fts5(a, x);
+  INSERT INTO "a x" VALUES('a a a', 'x x x');
+  ALTER TABLE "a x" RENAME TO "x y";
+}
+do_execsql_test 1.1.1 {
+  SELECT * FROM "x y";
+  SELECT rowid FROM "x y" WHERE "x y" MATCH 'a'
+} {{a a a} {x x x} 1}
+
+do_execsql_test 1.2.0 {
+  CREATE VIRTUAL TABLE "one/two" USING fts5(one, columnsize=0);
+  INSERT INTO "one/two"(rowid, one) VALUES(456, 'd d d');
+  ALTER TABLE "one/two" RENAME TO "three/four";
+}
+do_execsql_test 1.2.1 {
+  SELECT * FROM "three/four";
+  SELECT rowid FROM "three/four" WHERE "three/four" MATCH 'd'
+} {{d d d} 456}
+
+do_execsql_test 1.3.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(val, content='');
+  INSERT INTO t1(rowid, val) VALUES(-1, 'drop table');
+  INSERT INTO t1(rowid, val) VALUES(-2, 'drop view');
+  ALTER TABLE t1 RENAME TO t2;
+}
+do_execsql_test 1.3.1 {
+  SELECT rowid, * FROM t2;
+  SELECT rowid FROM t2 WHERE t2 MATCH 'table'
+} {-2 {} -1 {} -1}
+
+#-------------------------------------------------------------------------
+# Test renaming an FTS5 table within a transaction.
+#
+do_execsql_test 2.1 {
+  CREATE VIRTUAL TABLE zz USING fts5(a);
+  INSERT INTO zz(rowid, a) VALUES(-56, 'a b c');
+  BEGIN;
+    INSERT INTO zz(rowid, a) VALUES(-22, 'a b c');
+    ALTER TABLE zz RENAME TO yy;
+    SELECT rowid FROM yy WHERE yy MATCH 'a + b + c';
+  COMMIT;
+} {-56 -22}
+
+do_execsql_test 2.2 {
+  BEGIN;
+    ALTER TABLE yy RENAME TO ww;
+    INSERT INTO ww(rowid, a) VALUES(-11, 'a b c');
+    SELECT rowid FROM ww WHERE ww MATCH 'a + b + c';
+} {-56 -22 -11}
+
+do_execsql_test 2.3 {
+  ROLLBACK;
+  SELECT rowid FROM yy WHERE yy MATCH 'a + b + c';
+} {-56 -22}
+
+#-------------------------------------------------------------------------
+
+do_execsql_test 3.1 {
+  CREATE VIRTUAL TABLE abc USING fts5(a);
+  INSERT INTO abc(rowid, a) VALUES(1, 'a');
+  BEGIN;
+    INSERT INTO abc(rowid, a) VALUES(2, 'a');
+}
+do_execsql_test 3.2 {
+    SELECT rowid FROM abc WHERE abc MATCH 'a';
+} {1 2}
+
+do_execsql_test 3.3 {
+  COMMIT;
+  SELECT rowid FROM abc WHERE abc MATCH 'a';
+} {1 2}
+
+finish_test
diff --git a/ext/fts5/test/fts5auto.test b/ext/fts5/test/fts5auto.test
new file mode 100644
index 0000000000000000000000000000000000000000..b771af912e30161cb1a221af254d6c45b0f5ff56
--- /dev/null
+++ b/ext/fts5/test/fts5auto.test
@@ -0,0 +1,344 @@
+# 2015 May 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+# This file contains automatically generated tests for various types
+# of MATCH expressions.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5auto
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+set data {
+    -4026076
+    {n x w k b p x b n t t d s}     {f j j s p j o}               
+    {w v i y r}                     {i p y s}                     
+    {a o q v e n q r}               {q v g u c y a z y}           
+    3995120
+    {c}                             {e e w d t}                   
+    {x c p f w r s m l r b f d}     {g g u e}                     
+    {s n u t d v p d}               {b k v p m f}                 
+    -2913881
+    {k m}                           {a}                           
+    {w r j z n s l}                 {m j i w d t w e l}           
+    {z n c}                         {v f b m}                     
+    174082
+    {j}                             {q l w u k e q v r i}         
+    {j l}                           {u v w r s p e l}             
+    {p i k j k q c t g u s}         {g u y s m h q k g t e s o r} 
+    3207399
+    {e t}                           {}                            
+    {p}                             {y v r b e k h d e v}         
+    {t m w z b g q t s d d h}       {o n v u i t o y k j}         
+    182399
+    {}                              {m o s o x d y f a x j z}     
+    {x n z r c d}                   {n r x i r}                   
+    {s v s}                         {a u}                         
+    768994
+    {e u t q v z q k j p u f j p}   {y c b}                       
+    {p s d}                         {k n w p m p p}               
+    {u o x s d}                     {f s g r d b d r m m m z y}   
+    3931037
+    {c j p x e}                     {c n k t h z o i}             
+    {}                              {r r p j k x w q}             
+    {o r d z d}                     {x}                           
+    3105748
+    {p x r u}                       {x i s w o t o g x m z i w}   
+    {q x m z}                       {h c j w b l y w x c o}       
+    {m b k v}                       {t v q i s a d x}             
+    -2501642
+    {o u d n w o m o o s n t r h}   {k p e u y p e z d j r y g}   
+    {v b b h d d q y j q j}         {a m w d t}                   
+    {y e f n}                       {a k x i x}                   
+    -1745680
+    {z u w j f d b f}               {j w i c g u d w e}           
+    {m f p v m a s p v c o s}       {s c r z o t w l b e a q}     
+    {m k q}                         {k b a v o}                   
+    -932328
+    {r v i u m q d r}               {f z u v h c m r f g}         
+    {r x r}                         {k p i d h h w h z u a x}     
+    {k m j p}                       {h l j a e u c i q x x f x g} 
+    -3923818
+    {t t p b n u i h e c k}         {m z}                         
+    {v u d c}                       {v y y j s g}                 
+    {o a f k k q p h g x e n z x}   {h d w c o l}                 
+    -2145922
+    {z z l f a l g e d c d h}       {j b j p k o o u b q}         
+    {d i g q t f d r h k}           {n w g j c x r p t y f l c t} 
+    {d o c u k f o}                 {r y s x z s p p h g t p y c} 
+    4552917
+    {j w j y h l k u}               {n a}                         
+    {y h w c n k}                   {b}                           
+    {w}                             {z l r t s i m v c y}         
+    2292008
+    {q v q j w y y x u t}           {r q z n h a b o}             
+    {d q y}                         {y v o e j}                   
+    {}                              {a b h c d l p d x}           
+    1407892
+    {n j j u q d o a u c f}         {r d b w o q n g}             
+    {d e v w s}                     {v d v o u o x s l s j z y}   
+    {j y w h i f g i h m}           {v n z b n y}                 
+    -4412544
+    {g h h r s}                     {h e r e}                     
+    {n q s}                         {o p z r m l l t}             
+    {p}                             {f s u o b j}                 
+    1209110
+    {o a a z t t u h j}             {z z i r k r}                 
+    {i c x q w g v o x z i z p}     {q o g k i n z x e d v w v}   
+    {p f v b g f e d n p u c y k}   {q z z a i p a a s r e z}     
+    3448977
+    {i v}                           {l u x t b o k}               
+    {f h u v p}                     {k a o y j}                   
+    {d m k c j}                     {v c e r u e f i t}           
+    -4703774
+    {d h v w u z r e h x o l t}     {p s f y w y r q d a m w}     
+    {c h g c g j j f t b i c q}     {s e}                         
+    {c t q j g f}                   {v n r w y r a g e j d}       
+    2414151
+    {s o o s d s k q b f q v p e}   {j r o b t o p d l o o x}     
+    {d d k t v e}                   {}                            
+    {t v o d w}                     {w e q w h y c y y i j b a m} 
+    -3342407
+    {m c h n e p d o c r w n t}     {j d k s p q l}               
+    {t g s r w x j l r z r}         {h}                           
+    {r q v x i r a n h s}           {m y p b v w r a u o g q r}   
+    -993951
+    {l n p u o j d x t u u c o j}   {k r n a r e k v i t o e}     
+    {q f t t a a c z v f}           {o n m p v f o e n}           
+    {h z h i p s b j z h}           {i t w m k c u g n i}         
+    1575251
+    {}                              {z s i j d o x j a r t}       
+    {h g j u j n v e n z}           {p z j n n f}                 
+    {s q q f d w r l y i z d o m}   {b a n d h t b y g h d}       
+    4263668
+    {q g t h f s}                   {s g x p f q z i s o f l i}   
+    {q k}                           {w v h a x n a r b}           
+    {m j a h o b i x k r w z q u}   {m t r g j o e q t m p u l}   
+    2487819
+    {m w g x r n e u t s r}         {b x a t u u j c r n}         
+    {j}                             {w f j r e e y l p}           
+    {o u h b}                       {o c a c a b v}               
+    167966
+    {o d b s d o a u m o x y}       {c}                           
+    {r w d o b v}                   {z e b}                       
+    {i n z a f g z o}               {m u b a g}                   
+    1948599
+    {n r g q d j s}                 {n k}                         
+    {l b p d v t k h y y}           {u m k e c}                   
+    {t b n y o t b}                 {j w c i r x x}               
+    2941631
+    {l d p l b g f}                 {e k e}                       
+    {p j}                           {m c s w t b k n l d x}       
+    {f o v y v l}                   {c w p s w j w c u t y}       
+    3561104
+    {d r j j r j i g p}             {u}                           
+    {g r j q}                       {z l p d s n f c h t d c v z} 
+    {w r c f s x z y}               {g f o k g g}                 
+    -2223281
+    {y e t j j z f p o m m z}       {h k o g o}                   
+    {m x a t}                       {l q x l}                     
+    {r w k d l s y b}               {q g k b}                     
+    -4502874
+    {k k b x k l f}                 {r}                           
+    {}                              {q m z b k h k u n e z}       
+    {z q g y m y u}                 {}                            
+    1757599
+    {d p z j y u r}                 {z p l q w j t j}             
+    {n i r x r y j}                 {}                            
+    {h}                             {w t d q c x z z x e e}       
+    -4809589
+    {}                              {z p x u h i i n g}           
+    {w q s u d b f x n}             {l y k b b r x t i}           
+    {n d v j q o t o d p z e}       {u r y u v u c}               
+    1068408
+    {y e}                           {e g s k e w t p v o b k}     
+    {z c m s}                       {r u r u h n h b p q g b}     
+    {j k b l}                       {m c d t s r s q a d b o f}   
+    -1972554
+    {m s w}                         {d k v s a r k p a r i v}     
+    {g j z k p}                     {y k c v r e u o q f i b a}   
+    {i p i}                         {c z w c y b n z i v}         
+    -2052385
+    {}                              {x e u f f g n c i x n e i e} 
+    {}                              {p s w d x p g}               
+    {}                              {s j a h n}                   
+    2805981
+    {m x g c w o e}                 {k g u y r y i u e g g}       
+    {f k j v t x p h x k u}         {w i}                         
+    {b l f z f v t n}               {i u d o d p h s m u}         
+    2507621
+    {}                              {u b n l x f n j t}           
+    {u r x l h}                     {h r l m r}                   
+    {d y e n b s q v t k n q q}     {x l t v w h a s k}           
+    -3138375
+    {e o f j y x u w v e w z}       {r d q g k n n v r c z n e w} 
+    {l y i q z k j p u f q s k}     {c i l l i m a a g a z r x f} 
+    {a v k h m q z b y n z}         {q g w c y r r o a}           
+    -457971
+    {j x a w e c s h f l f}         {q}                           
+    {j f v j u m d q r v v}         {x n v a w}                   
+    {i e h d h f u w t t z}         {v s u l s v o v i k n e}     
+    2265221
+    {z t c y w n y r t}             {n b a x s}                   
+    {q w a v}                       {a b s d x i g w t e z h}     
+    {t l}                           {j k r w f f y j o k u}       
+    -3941280
+    {r x t o z}                     {f j n z k}                   
+    {t x e b t d b k w i s}         {j t y h i h}                 
+    {y q g n g s u v c z j z n g}   {n n g t l p h}               
+    2084745
+    {z d z d}                       {j}                           
+    {o e k t b k a z l w}           {o p i h k c x}               
+    {c r b t i j f}                 {z e n m}                     
+    1265843
+    {}                              {j s g j j x u y}             
+    {u q t f}                       {g o g}                       
+    {w o j e d}                     {w q n a c t q x j}           
+    -2941116
+    {i n c u o}                     {f b}                         
+    {o m s q d o z a q}             {f s v o b b}                 
+    {o a z c h r}                   {j e w h b f z}               
+    -1265441
+    {p g z q v a o a x a}           {s t h}                       
+    {w i p o c}                     {s n d g f z w q o d v v l j} 
+    {y f b i a s v}                 {u m o z k k s t s d p b l p} 
+    -1989158
+    {r i c n}                       {r e w w i n z}               
+    {q u s y b w u g y g f o}       {y}                           
+    {d}                             {j x i b x u y d c p v a h}   
+    2391989
+    {b n w x w f q h p i}           {e u b b i n a i o c d g}     
+    {v a z o i e n l x l r}         {r u f o r k w m d w}         
+    {k s}                           {r f e j q p w}               
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE tt USING fts5(a, b, c, d, e, f);
+} {}
+
+fts5_aux_test_functions db
+
+proc do_auto_test {tn tbl expr} {
+  foreach order {asc desc} {
+    set res [fts5_poslist_data $expr $tbl $order]
+    set testname "$tn.[string range $order 0 0].rows=[expr [llength $res]/2]"
+
+    set ::autotest_expr $expr
+    do_execsql_test $testname [subst -novar {
+      SELECT rowid, fts5_test_poslist([set tbl]) FROM [set tbl] 
+      WHERE [set tbl] MATCH $::autotest_expr ORDER BY rowid [set order]
+    }] $res
+  }
+}
+
+#-------------------------------------------------------------------------
+#
+
+for {set fold 0} {$fold < 3} {incr fold} {
+  switch $fold {
+    0 { set map {} }
+    1 { set map {
+      a a  b a  c b  d b  e c  f c  g d  h d  
+      i e  j e  k f  l f  m g  g g  o h  p h
+      q i  r i  s j  t j  u k  v k  w l  x l
+      y m  z m
+    }}
+
+    2 { set map {
+      a a  b a  c a  d a  e a  f a  g a  h a  
+      i b  j b  k b  l b  m b  g b  o b  p b
+      q c  r c  s c  t c  u c  v c  w c  x c
+    }}
+  }
+
+  execsql {
+    BEGIN;
+    DELETE FROM tt;
+  }
+  foreach {rowid a b c d e f} [string map $map $data] {
+  if {$rowid==-4703774} {
+    execsql {
+      INSERT INTO tt(rowid, a, b, c, d, e, f) 
+      VALUES($rowid, $a, $b, $c, $d, $e, $f)
+    }
+    }
+  }
+  execsql COMMIT
+
+
+  foreach {tn expr} {
+    A.1 { {a} : x }
+    A.2 { {a b} : x }
+    A.3 { {a b f} : x }
+    A.4 { {f a b} : x }
+    A.5 { {f a b} : x y }
+    A.6 { {f a b} : x + y }
+    A.7 { {c a b} : x + c }
+    A.8 { {c d} : "l m" }
+    A.9 { {c e} : "l m" }
+    A.10 { {a b c a b c a b c f f e} : "l m" }
+
+    B.1 { a NOT b }
+    B.2 { a NOT a:b }
+    B.3 { a OR (b AND c) }
+    B.4 { a OR (b AND {a b c}:c) }
+    B.5 { a OR "b c" }
+    B.6 { a OR b OR c }
+
+    C.1 { a OR (b AND "b c") }
+    C.2 { a OR (b AND "z c") }
+  } {
+    do_auto_test 3.$fold.$tn tt $expr
+  }
+}
+
+proc replace_elems {list args} {
+  set ret $list
+  foreach {idx elem} $args {
+    set ret [lreplace $ret $idx $idx $elem]
+  }
+  set ret
+}
+
+#-------------------------------------------------------------------------
+#
+set bigdoc [string trim [string repeat "a " 1000]]
+do_test 4.0 {
+  set a [replace_elems $bigdoc  50 x  950 x]
+  set b [replace_elems $bigdoc  20 y   21 x  887 x 888 y]
+  set c [replace_elems $bigdoc   1 z  444 z  789 z]
+  execsql {
+    CREATE VIRTUAL TABLE yy USING fts5(c1, c2, c3);
+    INSERT INTO yy(rowid, c1, c2, c3) VALUES(-56789, $a, $b, $c);
+    INSERT INTO yy(rowid, c1, c2, c3) VALUES(250, $a, $b, $c);
+  }
+} {}
+
+foreach {tn expr} {
+  1 x    
+  2 y    
+  3 z
+
+  4 {c1 : x} 5 {c2 : x} 6 {c3 : x}
+  7 {c1 : y} 8 {c2 : y} 9 {c3 : y}
+  10 {c1 : z} 11 {c2 : z} 12 {c3 : z}
+} {
+  do_auto_test 4.$tn yy $expr
+}
+
+
+
+finish_test
diff --git a/ext/fts5/test/fts5aux.test b/ext/fts5/test/fts5aux.test
new file mode 100644
index 0000000000000000000000000000000000000000..960dbc5117c6b256fed9278ff640f4974930e703
--- /dev/null
+++ b/ext/fts5/test/fts5aux.test
@@ -0,0 +1,404 @@
+# 2014 Dec 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests focusing on the auxiliary function APIs.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5aux
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+proc inst {cmd i} { 
+  $cmd xInst $i
+}
+sqlite3_fts5_create_function db inst inst
+
+proc colsize {cmd i} { 
+  $cmd xColumnSize $i
+}
+sqlite3_fts5_create_function db colsize colsize
+
+proc totalsize {cmd i} { 
+  $cmd xColumnTotalSize $i
+}
+sqlite3_fts5_create_function db totalsize totalsize
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE f1 USING fts5(a, b);
+  INSERT INTO f1 VALUES('one two', 'two one zero');
+  INSERT INTO f1 VALUES('one one', 'one one one');
+}
+
+do_catchsql_test 1.1 {
+  SELECT inst(f1, -1) FROM f1 WHERE f1 MATCH 'two';
+} {1 SQLITE_RANGE}
+do_catchsql_test 1.2 {
+  SELECT inst(f1, 0) FROM f1 WHERE f1 MATCH 'two';
+} {0 {{0 0 1}}}
+do_catchsql_test 1.3 {
+  SELECT inst(f1, 1) FROM f1 WHERE f1 MATCH 'two';
+} {0 {{0 1 0}}}
+do_catchsql_test 1.4 {
+  SELECT inst(f1, 2) FROM f1 WHERE f1 MATCH 'two';
+} {1 SQLITE_RANGE}
+
+do_catchsql_test 2.1 {
+  SELECT colsize(f1, 2) FROM f1 WHERE f1 MATCH 'two';
+} {1 SQLITE_RANGE}
+do_execsql_test 2.2 {
+  SELECT colsize(f1, 0), colsize(f1, 1) FROM f1 WHERE f1 MATCH 'zero';
+} {2 3}
+do_execsql_test 2.3 {
+  SELECT colsize(f1, -1) FROM f1 WHERE f1 MATCH 'zero';
+} {5}
+
+do_execsql_test 2.4.1 {
+  SELECT totalsize(f1, -1) FROM f1 WHERE f1 MATCH 'zero';
+} {10}
+do_execsql_test 2.4.2 {
+  SELECT totalsize(f1, 0) FROM f1 WHERE f1 MATCH 'zero';
+} {4}
+do_execsql_test 2.4.3 {
+  SELECT totalsize(f1, 1) FROM f1 WHERE f1 MATCH 'zero';
+} {6}
+do_catchsql_test 2.4.4 {
+  SELECT totalsize(f1, 2) FROM f1 WHERE f1 MATCH 'zero';
+} {1 SQLITE_RANGE}
+
+#-------------------------------------------------------------------------
+# Test the xSet and xGetAuxdata APIs with a NULL destructor.
+#
+proc prevrowid {add cmd} {
+  set res [$cmd xGetAuxdataInt 0]
+  set r [$cmd xRowid]
+  $cmd xSetAuxdataInt $r
+  return [expr $res + $add]
+}
+sqlite3_fts5_create_function db prevrowid  [list prevrowid 0]
+sqlite3_fts5_create_function db prevrowid1 [list prevrowid 1]
+
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE e5 USING fts5(x);
+  INSERT INTO e5 VALUES('a b c');
+  INSERT INTO e5 VALUES('d e f');
+  INSERT INTO e5 VALUES('a b c');
+  INSERT INTO e5 VALUES('d e f');
+  INSERT INTO e5 VALUES('a b c');
+}
+
+do_execsql_test 3.1 {
+  SELECT prevrowid(e5) || '+' || rowid FROM e5 WHERE e5 MATCH 'c'
+} {0+1   1+3   3+5}
+
+do_execsql_test 3.2 {
+  SELECT prevrowid(e5) || '+' || prevrowid1(e5) || '+' || rowid 
+  FROM e5 WHERE e5 MATCH 'e'
+} {0+1+2    2+3+4}
+
+#-------------------------------------------------------------------------
+# Test that if the xQueryPhrase callback returns other than SQLITE_OK,
+# the query is abandoned. And that if it returns an error code other than 
+# SQLITE_DONE, the error is propagated back to the caller.
+#
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE e7 USING fts5(x);
+  INSERT INTO e7 VALUES('a x a');
+  INSERT INTO e7 VALUES('b x b');
+  INSERT INTO e7 VALUES('c x c');
+  INSERT INTO e7 VALUES('d x d');
+  INSERT INTO e7 VALUES('e x e');
+}
+
+proc xCallback {rowid code cmd} {
+  set r [$cmd xRowid]
+  lappend ::cb $r
+  if {$r==$rowid} { return $code }
+  return ""
+}
+
+proc phrasequery {cmd code} {
+  set ::cb [list]
+  $cmd xQueryPhrase 1 [list xCallback [$cmd xRowid] $code]
+  set ::cb
+}
+
+sqlite3_fts5_create_function db phrasequery phrasequery
+
+do_execsql_test 4.1 {
+  SELECT phrasequery(e7, 'SQLITE_OK') FROM e7 WHERE e7 MATCH 'c x'
+} {{1 2 3 4 5}}
+
+do_execsql_test 4.2 {
+  SELECT phrasequery(e7, 'SQLITE_DONE') FROM e7 WHERE e7 MATCH 'c x'
+} {{1 2 3}}
+
+do_catchsql_test 4.3 {
+  SELECT phrasequery(e7, 'SQLITE_ERROR') FROM e7 WHERE e7 MATCH 'c x'
+} {1 SQLITE_ERROR}
+
+#-------------------------------------------------------------------------
+# Auxiliary function calls with many cursors in the global cursor list.
+#
+do_execsql_test 5.0 {
+  CREATE VIRTUAL TABLE e9 USING fts5(y);
+  INSERT INTO e9(rowid, y) VALUES(1, 'i iii');
+  INSERT INTO e9(rowid, y) VALUES(2, 'ii iv');
+  INSERT INTO e9(rowid, y) VALUES(3, 'ii');
+  INSERT INTO e9(rowid, y) VALUES(4, 'i iv');
+  INSERT INTO e9(rowid, y) VALUES(5, 'iii');
+}
+
+proc my_rowid {cmd} { $cmd xRowid }
+sqlite3_fts5_create_function db my_rowid my_rowid
+
+foreach {var q} {
+  s1 i
+  s2 ii
+  s3 iii
+  s4 iv
+} {
+  set sql "SELECT my_rowid(e9) FROM e9 WHERE e9 MATCH '$q'"
+  set $var [sqlite3_prepare db $sql -1 dummy]
+}
+
+do_test 5.1.1 { sqlite3_step $s1 ; sqlite3_column_int $s1 0 } 1
+do_test 5.1.2 { sqlite3_step $s2 ; sqlite3_column_int $s2 0 } 2
+do_test 5.1.3 { sqlite3_step $s3 ; sqlite3_column_int $s3 0 } 1
+do_test 5.1.4 { sqlite3_step $s4 ; sqlite3_column_int $s4 0 } 2
+
+do_test 5.2.1 { sqlite3_step $s1 ; sqlite3_column_int $s1 0 } 4
+do_test 5.2.2 { sqlite3_step $s2 ; sqlite3_column_int $s2 0 } 3
+do_test 5.2.3 { sqlite3_step $s3 ; sqlite3_column_int $s3 0 } 5
+do_test 5.2.4 { sqlite3_step $s4 ; sqlite3_column_int $s4 0 } 4
+
+sqlite3_finalize $s1
+sqlite3_finalize $s2
+sqlite3_finalize $s3
+sqlite3_finalize $s4
+
+#-------------------------------------------------------------------------
+# Passing an invalid first argument to an auxiliary function is detected.
+#
+do_execsql_test 6.0 {
+  CREATE VIRTUAL TABLE e11 USING fts5(y, z);
+  INSERT INTO e11(rowid, y, z) VALUES(1, 'a b', 45);
+  INSERT INTO e11(rowid, y, z) VALUES(2, 'b c', 46);
+}
+
+do_catchsql_test 6.1 {
+  SELECT my_rowid(z) FROM e11 WHERE e11 MATCH 'b'
+} {1 {no such cursor: 45}}
+
+do_catchsql_test 6.2 {
+  SELECT my_rowid(y) FROM e11 WHERE e11 MATCH 'b'
+} {1 {no such cursor: 0}}
+
+#-------------------------------------------------------------------------
+# Test passing an out-of-range phrase number to xPhraseSize (should 
+# return 0).
+#
+proc my_phrasesize {cmd iPhrase} { $cmd xPhraseSize $iPhrase }
+sqlite3_fts5_create_function db my_phrasesize my_phrasesize
+
+do_execsql_test 7.1 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a);
+  INSERT INTO t1 VALUES('a b c');
+}
+do_execsql_test 7.2 {
+  SELECT 
+    my_phrasesize(t1, -1),
+    my_phrasesize(t1, 0),
+    my_phrasesize(t1, 1),
+    my_phrasesize(t1, 2)
+  FROM t1 WHERE t1 MATCH 'a OR b+c'
+} {0 1 2 0}
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test 8.0 {
+  CREATE VIRTUAL TABLE x1 USING fts5(a);
+}
+
+foreach {tn lRow res} {
+  4  {"a a a" "b" "a d"} {"[a] [a] [a]" "[a] d"}
+  1  {"b d" "a b"}       {"[b] [d]" "[a] b"}
+  2  {"d b" "a d"}       {"[d] [b]" "[a] d"}
+  3  {"a a d"}           {"[a] [a] d"}
+} {
+  execsql { DELETE FROM x1 }
+  foreach row $lRow { execsql { INSERT INTO x1 VALUES($row) } }
+  do_execsql_test 8.$tn {
+    SELECT highlight(x1, 0, '[', ']') FROM x1 WHERE x1 MATCH 'a OR (b AND d)';
+  } $res
+}
+
+#-------------------------------------------------------------------------
+# Test the built-in bm25() demo.
+#
+reset_db
+do_execsql_test 9.1 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, b);
+  INSERT INTO t1 VALUES('a',   NULL);           -- 1
+  INSERT INTO t1 VALUES('a',   NULL);           -- 2
+  INSERT INTO t1 VALUES('a',   NULL);           -- 3
+  INSERT INTO t1 VALUES('a',   NULL);           -- 4
+  INSERT INTO t1 VALUES('a',   NULL);           -- 5
+  INSERT INTO t1 VALUES('a',   NULL);           -- 6
+  INSERT INTO t1 VALUES('a',   NULL);           -- 7
+  INSERT INTO t1 VALUES('a',   NULL);           -- 8
+  INSERT INTO t1 VALUES(NULL,  'a a b');        -- 9
+  INSERT INTO t1 VALUES(NULL,  'b b a');        -- 10
+}
+
+do_execsql_test 9.2 {
+  SELECT rowid FROM t1('a AND b') ORDER BY rank;
+} {
+  10 9
+}
+
+do_execsql_test 9.3 {
+  SELECT rowid FROM t1('b:a AND b:b') ORDER BY rank;
+} {
+  9 10
+}
+
+#-------------------------------------------------------------------------
+# Test that aux. functions may not be used in aggregate queries.
+#
+reset_db
+do_execsql_test 10.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x, y, z);
+  INSERT INTO t1 VALUES('a', 'one two', 1);
+  INSERT INTO t1 VALUES('b', 'two three', 2);
+  INSERT INTO t1 VALUES('c', 'three four', 1);
+  INSERT INTO t1 VALUES('d', 'four five', 2);
+  INSERT INTO t1 VALUES('e', 'five six', 1);
+  INSERT INTO t1 VALUES('f', 'six seven', 2);
+}
+
+proc firstcol {cmd} { $cmd xColumnText 0 }
+sqlite3_fts5_create_function db firstcol firstcol
+
+do_execsql_test 10.1.1 {
+  SELECT firstcol(t1) FROM t1
+} {a b c d e f}
+do_execsql_test 10.1.2 {
+  SELECT group_concat(x, '.') FROM t1
+} {a.b.c.d.e.f}
+
+do_catchsql_test 10.1.3 {
+  SELECT group_concat(firstcol(t1), '.') FROM t1
+} {1 {unable to use function firstcol in the requested context}}
+
+do_catchsql_test 10.1.4 {
+  SELECT group_concat(firstcol(t1), '.') FROM t1 GROUP BY rowid
+} {1 {unable to use function firstcol in the requested context}}
+
+#-------------------------------------------------------------------------
+# Test that xInstCount() works from within an xPhraseQuery() callback.
+#
+reset_db
+
+proc xCallback {cmd} {
+  incr ::hitcount [$cmd xInstCount]
+  return SQLITE_OK
+}
+proc fts5_hitcount {cmd} {
+  set ::hitcount 0
+  $cmd xQueryPhrase 0 xCallback
+  return $::hitcount
+}
+sqlite3_fts5_create_function db fts5_hitcount fts5_hitcount
+
+do_execsql_test 11.1 {
+  CREATE VIRTUAL TABLE x1 USING fts5(z);
+  INSERT INTO x1 VALUES('one two three');
+  INSERT INTO x1 VALUES('one two one three one');
+  INSERT INTO x1 VALUES('one two three');
+}
+
+do_execsql_test 11.2 {
+  SELECT fts5_hitcount(x1) FROM x1('one') LIMIT 1;
+} {5}
+
+#-------------------------------------------------------------------------
+# Test that xColumnText returns SQLITE_RANGE when it should.
+#
+reset_db
+fts5_aux_test_functions db
+do_execsql_test 12.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, b, c);
+  INSERT INTO t1 VALUES('one', 'two', 'three');
+  INSERT INTO t1 VALUES('one', 'one', 'one');
+  INSERT INTO t1 VALUES('two', 'two', 'two');
+  INSERT INTO t1 VALUES('three', 'three', 'three');
+}
+
+do_catchsql_test 12.1.1 {
+  SELECT fts5_columntext(t1, -1) FROM t1('two');
+} {1 SQLITE_RANGE}
+do_catchsql_test 12.1.2 {
+  SELECT fts5_columntext(t1, 3) FROM t1('two');
+} {1 SQLITE_RANGE}
+do_catchsql_test 12.1.2 {
+  SELECT fts5_columntext(t1, 1) FROM t1('one AND two');
+} {0 two}
+
+do_catchsql_test 12.2.1 {
+  SELECT fts5_queryphrase(t1, -1) FROM t1('one AND two');
+} {1 SQLITE_RANGE}
+do_catchsql_test 12.2.2 {
+  SELECT fts5_queryphrase(t1, 2) FROM t1('one AND two');
+} {1 SQLITE_RANGE}
+do_catchsql_test 12.2.3 {
+  SELECT fts5_queryphrase(t1, 1) FROM t1('one AND two');
+} {0 {{1 2 1}}}
+
+do_catchsql_test 12.3.1 {
+  SELECT fts5_collist(t1, -1) FROM t1('one AND two');
+} {1 SQLITE_RANGE}
+do_catchsql_test 12.3.2 {
+  SELECT fts5_collist(t1, 2) FROM t1('one AND two');
+} {1 SQLITE_RANGE}
+do_catchsql_test 12.3.3 {
+  SELECT fts5_collist(t1, 1) FROM t1('one AND two');
+} {0 1}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 13.1 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, tokenize=ascii);
+  INSERT INTO t1 VALUES('a b c'), ('d e f');
+  PRAGMA integrity_check;
+} {ok}
+
+do_catchsql_test 13.2 {
+  SELECT highlight(t1, 0, '[', ']') FROM t1
+} {0 {{a b c} {d e f}}}
+
+do_execsql_test 13.3 {
+  PRAGMA writable_schema = 1;
+  UPDATE sqlite_schema SET sql = 'CREATE VIRTUAL TABLE t1 USING fts5(a, tokenize=blah)'
+  WHERE name = 't1';
+}
+
+db close
+sqlite3 db test.db
+do_catchsql_test 13.4 {
+  SELECT highlight(t1, 0, '[', ']') FROM t1
+} {1 {SQL logic error}}
+
+finish_test
diff --git a/ext/fts5/test/fts5aux2.test b/ext/fts5/test/fts5aux2.test
new file mode 100644
index 0000000000000000000000000000000000000000..2352970ec742aa5e2f3d2e279d2a0e3dc9ca2f64
--- /dev/null
+++ b/ext/fts5/test/fts5aux2.test
@@ -0,0 +1,71 @@
+# 2024 June 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests focusing on the auxiliary function APIs.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5aux
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE x1 USING fts5(a, b);
+  INSERT INTO x1 VALUES('a b', 'c d');
+  INSERT INTO x1 VALUES('d e', 'a b');
+  INSERT INTO x1 VALUES('a b', 'e f');
+  INSERT INTO x1 VALUES('d e', 'c d');
+}
+
+fts5_aux_test_functions db
+do_execsql_test 1.1 {
+  SELECT fts5_test_all(x1) FROM x1 WHERE rowid=2
+} [list [list {*}{
+  columnsize {2 2}
+  columntext {{d e} {a b}}
+  columntotalsize {8 8}
+  poslist {}
+  tokenize {{d e} {a b}}
+  rowcount 4
+}]]
+
+do_execsql_test 1.2 {
+  SELECT fts5_test_columntext(x1) FROM x1
+} {
+  {{a b} {c d}}
+  {{d e} {a b}}
+  {{a b} {e f}}
+  {{d e} {c d}}
+}
+
+do_execsql_test 1.3 {
+  SELECT fts5_test_rowid(x1) FROM x1
+} {
+  1 2 3 4
+}
+do_execsql_test 1.4 {
+  SELECT fts5_test_phrasecount(x1) FROM x1
+} {
+  0 0 0 0
+}
+do_catchsql_test 1.5 {
+  SELECT fts5_queryphrase(x1, 0) FROM x1
+} {1 SQLITE_RANGE} 
+do_execsql_test 1.6 {
+  SELECT fts5_test_rowcount(x1) FROM x1
+} {4 4 4 4}
+
+
+finish_test
diff --git a/ext/fts5/test/fts5auxdata.test b/ext/fts5/test/fts5auxdata.test
new file mode 100644
index 0000000000000000000000000000000000000000..7f99fed3168dcadab8792346281ceba34fe6b756
--- /dev/null
+++ b/ext/fts5/test/fts5auxdata.test
@@ -0,0 +1,114 @@
+# 2014 Dec 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests focusing on the fts5 xSetAuxdata() and xGetAuxdata() APIs.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5auxdata
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE f1 USING fts5(a, b);
+  INSERT INTO f1(rowid, a, b) VALUES(1, 'a', 'b1');
+  INSERT INTO f1(rowid, a, b) VALUES(2, 'a', 'b2');
+  INSERT INTO f1(rowid, a, b) VALUES(3, 'a', 'b3');
+  INSERT INTO f1(rowid, a, b) VALUES(4, 'a', 'b4');
+  INSERT INTO f1(rowid, a, b) VALUES(5, 'a', 'b5');
+}
+
+proc aux_function_1 {cmd tn} {
+  switch [$cmd xRowid] {
+    1 {
+      do_test $tn.1 [list $cmd xGetAuxdata 0 ] {}
+      $cmd xSetAuxdata "one"
+    }
+
+    2 {
+      do_test $tn.2 [list $cmd xGetAuxdata 0 ] {one}
+      $cmd xSetAuxdata "two"
+    }
+
+    3 {
+      do_test $tn.3 [list $cmd xGetAuxdata 0 ] {two}
+    }
+
+    4 {
+      do_test $tn.4 [list $cmd xGetAuxdata 1 ] {two}
+    }
+
+    5 {
+      do_test $tn.5 [list $cmd xGetAuxdata 0 ] {}
+    }
+  }
+}
+
+sqlite3_fts5_create_function db aux_function_1 aux_function_1
+db eval { 
+  SELECT aux_function_1(f1, 1) FROM f1 WHERE f1 MATCH 'a'
+  ORDER BY rowid ASC
+}
+
+proc aux_function_2 {cmd tn inst} {
+  if {$inst == "A"} {
+    switch [$cmd xRowid] {
+      1 {
+        do_test $tn.1.$inst [list $cmd xGetAuxdata 0 ] {}
+        $cmd xSetAuxdata "one $inst"
+      }
+      2 {
+        do_test $tn.2.$inst [list $cmd xGetAuxdata 0 ] "one $inst"
+        $cmd xSetAuxdata "two $inst"
+      }
+      3 {
+        do_test $tn.3.$inst [list $cmd xGetAuxdata 0 ] "two $inst"
+      }
+      4 {
+        do_test $tn.4.$inst [list $cmd xGetAuxdata 1 ] "two $inst"
+      }
+      5 {
+        do_test $tn.5.$inst [list $cmd xGetAuxdata 0 ] {}
+      }
+    }
+  } else {
+    switch [$cmd xRowid] {
+      1 {
+        do_test $tn.1.$inst [list $cmd xGetAuxdata 0 ] "one A"
+      }
+      2 {
+        do_test $tn.2.$inst [list $cmd xGetAuxdata 0 ] "two A"
+      }
+      3 {
+        do_test $tn.3.$inst [list $cmd xGetAuxdata 0 ] "two A"
+      }
+      4 {
+        do_test $tn.4.$inst [list $cmd xGetAuxdata 0 ] {}
+      }
+      5 {
+        do_test $tn.5.$inst [list $cmd xGetAuxdata 0 ] {}
+      }
+    }
+  }
+}
+
+sqlite3_fts5_create_function db aux_function_2 aux_function_2
+db eval { 
+  SELECT aux_function_2(f1, 2, 'A'), aux_function_2(f1, 2, 'B') 
+  FROM f1 WHERE f1 MATCH 'a'
+  ORDER BY rowid ASC
+}
+
+finish_test
diff --git a/ext/fts5/test/fts5bigid.test b/ext/fts5/test/fts5bigid.test
new file mode 100644
index 0000000000000000000000000000000000000000..ae20ec641e0b0f21f55a1bbcf2e86d1aaf96ec94
--- /dev/null
+++ b/ext/fts5/test/fts5bigid.test
@@ -0,0 +1,62 @@
+# 2023 May 28
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5bigid
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+set nRow 20000
+
+proc do_ascdesc_test {tn query} {
+  set ::lAsc  [db eval { SELECT rowid FROM x1($query) }] 
+  set ::lDesc [db eval { SELECT rowid FROM x1($query) ORDER BY rowid DESC }] 
+  do_test $tn.1 { lsort -integer $::lAsc } $::lAsc
+  do_test $tn.2 { lsort -integer -decr $::lDesc } $::lDesc
+  do_test $tn.3 { lsort -integer $::lDesc } $::lAsc
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE x1 USING fts5(a);
+}
+
+do_test 1.1 {
+  for {set ii 0} {$ii < $nRow} {incr ii} {
+    db eval {
+      REPLACE INTO x1(rowid, a) VALUES(random(), 'movement at the station');
+    }
+  }
+} {}
+
+do_ascdesc_test 1.2 "the"
+
+do_execsql_test 1.3 {
+  DELETE FROM x1
+}
+
+do_test 1.4 {
+  for {set ii 0} {$ii < $nRow} {incr ii} {
+    db eval {
+      INSERT INTO x1(rowid, a) VALUES(
+          $ii + 0x6FFFFFFFFFFFFFFF, 'movement at the station'
+      );
+    }
+  }
+} {}
+
+do_ascdesc_test 1.5 "movement"
+
+finish_test
diff --git a/ext/fts5/test/fts5bigpl.test b/ext/fts5/test/fts5bigpl.test
new file mode 100644
index 0000000000000000000000000000000000000000..9e3d86c0e69ce566d4ca12dc6be12aa0cddc6f26
--- /dev/null
+++ b/ext/fts5/test/fts5bigpl.test
@@ -0,0 +1,63 @@
+# 2015 April 21
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This test is focused on really large position lists. Those that require
+# 4 or 5 byte position-list size varints. Because of the amount of memory
+# required, these tests only run on 64-bit platforms.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5bigpl
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+if { $tcl_platform(wordSize)<8 } {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 { CREATE VIRTUAL TABLE t1 USING fts5(x) }
+
+do_test 1.1 {
+  foreach t {a b c d e f g h i j} {
+    set doc [string repeat "$t " 1200000]
+    execsql { INSERT INTO t1 VALUES($doc) }
+  }
+  execsql { INSERT INTO t1(t1) VALUES('integrity-check') }
+} {}
+
+do_test 1.2 {
+  execsql { DELETE FROM t1 }
+  foreach t {"a b" "b a" "c d" "d c"} {
+    set doc [string repeat "$t " 600000]
+    execsql { INSERT INTO t1 VALUES($doc) }
+  }
+  execsql { INSERT INTO t1(t1) VALUES('integrity-check') }
+} {}
+
+
+# 5-byte varint. This test takes 30 seconds or so on a 2014 workstation.
+# The generated database is roughly 635MiB.
+#
+do_test 2.1...slow {
+  execsql { DELETE FROM t1 }
+  foreach t {a} {
+    set doc [string repeat "$t " 150000000]
+    execsql { INSERT INTO t1 VALUES($doc) }
+  }
+  execsql { INSERT INTO t1(t1) VALUES('integrity-check') }
+} {}
+
+finish_test
diff --git a/ext/fts5/test/fts5bigtok.test b/ext/fts5/test/fts5bigtok.test
new file mode 100644
index 0000000000000000000000000000000000000000..f74ec8f665ffc9a44fe90b7b023af52bed379873
--- /dev/null
+++ b/ext/fts5/test/fts5bigtok.test
@@ -0,0 +1,66 @@
+# 2016 Jan 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS5 module.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5bigtok
+return_if_no_fts5
+
+proc rndterm {} {
+  set L [list a b c d e f g h i j k l m n o p q r s t u v w x y z]
+  set l [lindex $L [expr int(rand() * [llength $L])]]
+  string repeat $l [expr int(rand() * 5) + 60]
+}
+
+proc rnddoc {n} {
+  set res [list]
+  for {set i 0} {$i < $n} {incr i} {
+    lappend res [rndterm]
+  }
+  set res
+}
+
+foreach_detail_mode $::testprefix {
+  db func rnddoc rnddoc
+  do_execsql_test 1.0 {
+    CREATE VIRTUAL TABLE t1 USING fts5(x, detail=%DETAIL%);
+    INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
+    CREATE VIRTUAL TABLE t1vocab USING fts5vocab(t1, row);
+
+    WITH s(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<10 )
+    INSERT INTO t1 SELECT rnddoc(3) FROM s;
+
+    WITH s(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<10 )
+    INSERT INTO t1 SELECT rnddoc(3) FROM s;
+  }
+
+  foreach v [db eval {SELECT term FROM t1vocab}] {
+    set res [db eval {SELECT rowid FROM t1($v)}]
+    do_execsql_test 1.[string range $v 0 0] {
+      SELECT rowid FROM t1($v) ORDER BY rowid DESC
+    } [lsort -integer -decr $res]
+  }
+
+  do_execsql_test 2.0 {
+    INSERT INTO t1(t1) VALUES('optimize');
+  }
+
+  foreach v [db eval {SELECT term FROM t1vocab}] {
+    set res [db eval {SELECT rowid FROM t1($v)}]
+    do_execsql_test 2.[string range $v 0 0] {
+      SELECT rowid FROM t1($v) ORDER BY rowid DESC
+    } [lsort -integer -decr $res]
+  }
+}
+
+finish_test
diff --git a/ext/fts5/test/fts5blob.test b/ext/fts5/test/fts5blob.test
new file mode 100644
index 0000000000000000000000000000000000000000..93485541042ee6eeab5fb752ffd6e81ba92d2302
--- /dev/null
+++ b/ext/fts5/test/fts5blob.test
@@ -0,0 +1,166 @@
+# 2024 July 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file verifies that:
+#
+#   * blob values may be written to locale=0 tables.
+#
+#   * blob values - other than fts5_locale() values - may not be written 
+#     to locale=0 tables. This is an SQLITE_MISMATCH error
+#
+#   * blob values may be returned by queries on the external-content table
+#     of a locale=0 table.
+#
+#   * blob values not may be returned by queries on the external-content 
+#     table of a locale=1 table, apart from fts5_locale() blobs. This is an
+#     SQLITE_MISMATCH error.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5blob
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+# Test that blobs may be stored in normal locale=0 tables.
+#
+foreach {tn enc} {
+  1 utf8  
+  2 utf16 
+} {
+  reset_db
+  fts5_aux_test_functions db
+
+  execsql "PRAGMA encoding = $enc"
+
+  execsql "
+    CREATE VIRTUAL TABLE t1 USING fts5(x, y);
+  "
+  do_execsql_test 1.$tn.0 {
+    CREATE VIRTUAL TABLE tt USING fts5vocab('t1', 'instance');
+    INSERT INTO t1(rowid, x, y) VALUES(1, 555, X'0000000041424320444546');
+    INSERT INTO t1(rowid, x, y) VALUES(2, 666, X'41424300444546');
+    INSERT INTO t1(rowid, x, y) VALUES(3, 777, 'xyz');
+  }
+
+  do_execsql_test 1.$tn.1 {
+    SELECT rowid, quote(x), quote(y) FROM t1
+  } {
+    1 555 X'0000000041424320444546'
+    2 666 X'41424300444546'
+    3 777 'xyz'
+  }
+
+  do_execsql_test 1.$tn.2 {
+    DELETE FROM t1 WHERE rowid=2;
+    DELETE FROM t1 WHERE rowid=1;
+  }
+
+  do_execsql_test 1.$tn.3 {
+    PRAGMA integrity_check;
+  } {ok}
+}
+
+#--------------------------------------------------------------------------
+# Test that a blob may be stored and retrieved in an unindexed column of
+# a regular table with locale=1.
+#
+reset_db
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x, y UNINDEXED, locale=1);
+  INSERT INTO t1(rowid, x, y) VALUES(12, 'twelve', X'0000000041424320444546');
+}
+
+do_execsql_test 2.1 {
+  select rowid, x, quote(y) FROM t1
+} {
+  12 twelve X'0000000041424320444546'
+}
+
+#--------------------------------------------------------------------------
+# Test that blobs may not be written to any type of table with locale=1
+# set. Except, they may be written to UNINDEXED columns.
+#
+reset_db
+do_execsql_test 3.0 {
+  CREATE TABLE t1(a, b);
+
+  CREATE VIRTUAL TABLE x1 USING fts5(a, b, locale=1);
+  CREATE VIRTUAL TABLE x2 USING fts5(a, b, locale=1, content=t2);
+  CREATE VIRTUAL TABLE x3 USING fts5(a, b, locale=1, content=);
+}
+
+do_catchsql_test 3.1 {
+  INSERT INTO x1(rowid, a, b) VALUES(113, 'hello world', X'123456');
+} {0 {}}
+do_catchsql_test 3.2 {
+  INSERT INTO x2(rowid, a, b) VALUES(113, 'hello world', X'123456');
+} {0 {}}
+do_catchsql_test 3.3 {
+  INSERT INTO x3(rowid, a, b) VALUES(113, 'hello world', X'123456');
+} {0 {}}
+
+
+#--------------------------------------------------------------------------
+# Test that fts5_locale() values may not be written to any type of table
+# without locale=1 set. Even to an UNINDEXED column.
+#
+reset_db
+do_execsql_test 3.0 {
+  CREATE TABLE t1(a, b);
+
+  CREATE VIRTUAL TABLE x1 USING fts5(a, b);
+  CREATE VIRTUAL TABLE x2 USING fts5(a, b, content=t2);
+  CREATE VIRTUAL TABLE x3 USING fts5(a, b, content=);
+
+  CREATE VIRTUAL TABLE x4 USING fts5(a, b, c UNINDEXED);
+}
+
+do_catchsql_test 3.1 {
+  INSERT INTO x1(rowid, a, b) 
+    VALUES(113, 'hello world', fts5_locale('en_AU', 'abc'));
+} {1 {fts5_locale() requires locale=1}}
+do_catchsql_test 3.2 {
+  INSERT INTO x2(rowid, a, b) 
+    VALUES(113, 'hello world', fts5_locale('en_AU', 'abc'));
+} {1 {fts5_locale() requires locale=1}}
+do_catchsql_test 3.3 {
+  INSERT INTO x3(rowid, a, b) 
+    VALUES(113, 'hello world', fts5_locale('en_AU', 'abc'));
+} {1 {fts5_locale() requires locale=1}}
+do_catchsql_test 3.4 {
+  INSERT INTO x4(rowid, a, b, c) 
+    VALUES(113, 'hello world', 'yesno', fts5_locale('en_AU', 'abc'));
+} {1 {fts5_locale() requires locale=1}}
+
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE x1 USING fts5(x);
+}
+
+foreach {tn sql} {
+  1 { INSERT INTO x1(rowid, x) VALUES(4.5, 'abcd') }
+  2 { INSERT INTO x1(rowid, x) VALUES('xyz', 'abcd') }
+  3 { INSERT INTO x1(rowid, x) VALUES(X'001122', 'abcd') }
+} {
+  do_catchsql_test 4.1.$tn $sql {1 {datatype mismatch}}
+}
+
+
+finish_test
+
+
diff --git a/ext/fts5/test/fts5cat.test b/ext/fts5/test/fts5cat.test
new file mode 100644
index 0000000000000000000000000000000000000000..71e2abe3aece0eb9d3908117c42d08c8198b7804
--- /dev/null
+++ b/ext/fts5/test/fts5cat.test
@@ -0,0 +1,76 @@
+# 2016 Jan 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+ifcapable !fts5 { finish_test ; return }
+set ::testprefix fts5cat
+
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x, tokenize="unicode61 categories 'L*'");
+  INSERT INTO t1 VALUES ('Unlike1option2values3and4column5names');
+}
+
+do_execsql_test 1.1 {
+  SELECT rowid FROM t1('option');
+} {1}
+
+do_execsql_test 1.2 {
+  CREATE VIRTUAL TABLE t2 USING fts5(x);
+  CREATE VIRTUAL TABLE t2t USING fts5vocab(t2, row);
+
+  CREATE VIRTUAL TABLE t3 USING fts5(
+    x, tokenize="unicode61 categories 'L* N* Co Mn'"
+  );
+  CREATE VIRTUAL TABLE t3t USING fts5vocab(t3, row);
+
+  CREATE VIRTUAL TABLE t4 USING fts5(
+    x, tokenize="unicode61 categories 'L* N* Co M*'"
+  );
+  CREATE VIRTUAL TABLE t4t USING fts5vocab(t4, row);
+
+  INSERT INTO t2 VALUES ('สนามกีฬา');
+  INSERT INTO t3 VALUES ('สนามกีฬา');
+  INSERT INTO t4 VALUES ('สนามกีฬา');
+}
+
+do_execsql_test 1.3 {
+  SELECT * FROM t2t
+} {สนามก 1 1 ฬา 1 1}
+
+do_execsql_test 1.4 {
+  SELECT * FROM t3t
+} {สนามกีฬา 1 1}
+
+do_execsql_test 1.5 {
+  SELECT * FROM t4t
+} {สนามกีฬา 1 1}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 2.0 "
+  CREATE VIRTUAL TABLE x1 USING fts5(c, 
+      tokenize=\"unicode61 categories ' \t'\");
+"
+
+do_catchsql_test 2.1 "
+  CREATE VIRTUAL TABLE x2 USING fts5(c, 
+      tokenize=\"unicode61 categories 'N*\t\tMYZ'\");
+" {1 {error in tokenizer constructor}}
+
+do_catchsql_test 2.2 "
+  CREATE VIRTUAL TABLE x2 USING fts5(c, 
+      tokenize=\"unicode61 categories 'N*\t\tXYZ'\");
+" {1 {error in tokenizer constructor}}
+
+
+finish_test
diff --git a/ext/fts5/test/fts5circref.test b/ext/fts5/test/fts5circref.test
new file mode 100644
index 0000000000000000000000000000000000000000..ea992195afbe01c528c9ce84a0cd657965898bb8
--- /dev/null
+++ b/ext/fts5/test/fts5circref.test
@@ -0,0 +1,80 @@
+# 2018 Dec 22
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS5 module.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5circref
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE tt USING fts5(a);
+  SELECT name FROM sqlite_master ORDER BY 1;
+} {
+  tt tt_config tt_content tt_data tt_docsize tt_idx
+}
+db_save_and_close
+
+foreach {tn schema sql} {
+  1 {
+    CREATE TRIGGER tr1 AFTER INSERT ON tt_config BEGIN
+      SELECT * FROM tt;
+    END;
+  } {
+    INSERT INTO tt(tt, rank) VALUES('usermerge', 4);
+  }
+
+  2 {
+    CREATE TRIGGER tr1 AFTER INSERT ON tt_docsize BEGIN
+      SELECT * FROM tt;
+    END;
+  } {
+    INSERT INTO tt(a) VALUES('one two three');
+  }
+
+  3 {
+    CREATE TRIGGER tr1 AFTER INSERT ON tt_content BEGIN
+      SELECT * FROM tt;
+    END;
+  } {
+    INSERT INTO tt(a) VALUES('one two three');
+  }
+
+  4 {
+    CREATE TRIGGER tr1 AFTER INSERT ON tt_data BEGIN
+      SELECT * FROM tt;
+    END;
+  } {
+    INSERT INTO tt(a) VALUES('one two three');
+  }
+
+  5 {
+    CREATE TRIGGER tr1 AFTER INSERT ON tt_idx BEGIN
+      SELECT * FROM tt;
+    END;
+  } {
+    INSERT INTO tt(a) VALUES('one two three');
+  }
+} {
+  db_restore_and_reopen
+  do_execsql_test 1.1.$tn.1 $schema
+  do_catchsql_test 1.1.$tn.2 $sql {1 {SQL logic error}}
+  db close
+}
+
+
+finish_test
diff --git a/ext/fts5/test/fts5colset.test b/ext/fts5/test/fts5colset.test
new file mode 100644
index 0000000000000000000000000000000000000000..e5429572c58e0ecce1e57b4eccb69626aec29ab4
--- /dev/null
+++ b/ext/fts5/test/fts5colset.test
@@ -0,0 +1,105 @@
+# 2016 August 10
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS5 module.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5colset
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+foreach_detail_mode $::testprefix {
+  if {[detail_is_none]} continue
+
+  do_execsql_test 1.0 {
+    CREATE VIRTUAL TABLE t1 USING fts5(a, b, c, d, detail=%DETAIL%);
+    INSERT INTO t1 VALUES('a', 'b', 'c', 'd');  -- 1
+    INSERT INTO t1 VALUES('d', 'a', 'b', 'c');  -- 2
+    INSERT INTO t1 VALUES('c', 'd', 'a', 'b');  -- 3
+    INSERT INTO t1 VALUES('b', 'c', 'd', 'a');  -- 4
+  }
+
+  foreach {tn q res} {
+    1 "a"          {1 2 3 4}
+    2 "{a}   : a"  {1}
+    3 "-{a}   : a" {2 3 4}
+    4 "- {a c} : a" {2 4}
+    5 " - {d d c} : a" {1 2}
+    6 "- {d c b a} : a" {}
+    7 "-{\"a\"} : b" {1 2 3}
+    8 "- c : a" {1 2 4}
+    9 "-c : a"  {1 2 4}
+    10 "-\"c\" : a"  {1 2 4}
+  } {
+    do_execsql_test 1.$tn {
+      SELECT rowid FROM t1($q)
+    } $res
+  }
+
+  foreach {tn q res} {
+    0 {{a} : (a AND ":")}     {}
+    1 "{a b c} : (a AND d)"   {2 3}
+    2 "{a b c} : (a AND b:d)" {3}
+    3 "{a b c} : (a AND d:d)" {}
+    4 "{b} : ( {b a} : ( {c b a} : ( {d b c a} : ( d OR c ) ) ) )" {3 4}
+    5 "{a} : ( {b a} : ( {c b a} : ( {d b c a} : ( d OR c ) ) ) )" {2 3}
+    6 "{a} : ( {b a} : ( {c b} : ( {d b c a} : ( d OR c ) ) ) )" {}
+    7 "{a b c} : (b:a AND c:b)" {2}
+  } {
+    do_execsql_test 2.$tn {
+      SELECT rowid FROM t1($q)
+    } $res
+  }
+
+  foreach {tn w res} {
+    0 "a MATCH 'a'" {1}
+    1 "b MATCH 'a'" {2}
+    2 "b MATCH '{a b c} : a'" {2}
+    3 "b MATCH 'a OR b'"      {1 2}
+    4 "b MATCH 'a OR a:b'"    {2}
+    5 "b MATCH 'a OR b:b'"    {1 2}
+  } {
+    do_execsql_test 3.$tn "
+      SELECT rowid FROM t1 WHERE $w
+    " $res
+  }
+
+  do_catchsql_test 4.1 {
+    SELECT * FROM t1 WHERE rowid MATCH 'a'
+  } {1 {no query solution}}
+}
+
+#-------------------------------------------------------------------------
+# Confirm that the expression parser creates the same expression tree
+# for:
+#
+#     {a b} : (abc AND def)
+#    -{c d} : (abc AND def)
+#
+# Assuming that the table columns are (a, b, c, d).
+#
+do_execsql_test 5.1 {
+  SELECT fts5_expr('abcd AND cdef');
+} {{"abcd" AND "cdef"}}
+do_execsql_test 5.2 {
+  SELECT fts5_expr('{a b} : (abcd AND cdef)', 'a', 'b', 'c', 'd');
+} {{{a b} : "abcd" AND {a b} : "cdef"}}
+do_execsql_test 5.3 {
+  SELECT fts5_expr('-{c d} : (abcd AND cdef)', 'a', 'b', 'c', 'd');
+} {{{a b} : "abcd" AND {a b} : "cdef"}}
+
+
+finish_test
diff --git a/ext/fts5/test/fts5columnsize.test b/ext/fts5/test/fts5columnsize.test
new file mode 100644
index 0000000000000000000000000000000000000000..7af49184b8eb315f3b363ce52fa6bd960371d191
--- /dev/null
+++ b/ext/fts5/test/fts5columnsize.test
@@ -0,0 +1,150 @@
+# 2015 Jun 10
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests focusing on fts5 tables with the columnsize=0 option.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5columnsize
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+#-------------------------------------------------------------------------
+# Check that the option can be parsed and that the %_docsize table is
+# only created if it is set to true.
+#
+foreach {tn outcome stmt} {
+  1 0 { CREATE VIRTUAL TABLE t1 USING fts5(x, columnsize=0) }
+  2 1 { CREATE VIRTUAL TABLE t1 USING fts5(x, columnsize=1) }
+  3 0 { CREATE VIRTUAL TABLE t1 USING fts5(x, columnsize='0') }
+  4 1 { CREATE VIRTUAL TABLE t1 USING fts5(x, columnsize='1') }
+  5 2 { CREATE VIRTUAL TABLE t1 USING fts5(x, columnsize='') }
+  6 2 { CREATE VIRTUAL TABLE t1 USING fts5(x, columnsize=2) }
+  7 1 { CREATE VIRTUAL TABLE t1 USING fts5(x, columnsize=0, columnsize=1) }
+  8 1 { CREATE VIRTUAL TABLE t1 USING fts5(x) }
+  9 2 { CREATE VIRTUAL TABLE t1 USING fts5(x, columnsize=11) }
+} {
+  execsql { 
+    DROP TABLE IF EXISTS t1;
+  }
+  if {$outcome==2} {
+    do_catchsql_test 1.$tn.1 $stmt {1 {malformed columnsize=... directive}}
+  } else {
+    do_execsql_test 1.$tn.2 $stmt
+    do_execsql_test 1.$tn.3 {
+      SELECT count(*) FROM sqlite_master WHERE name = 't1_docsize'
+    } $outcome
+  }
+}
+
+#-------------------------------------------------------------------------
+# Run tests on a table with no %_content or %_docsize backing store.
+#
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE t2 USING fts5(x, columnsize=0, content='');
+}
+do_catchsql_test 2.1 {
+  INSERT INTO t2 VALUES('a b c d e f');
+} {1 {datatype mismatch}}
+do_execsql_test 2.2 {
+  INSERT INTO t2(rowid, x) VALUES(1, 'c d e f');
+  INSERT INTO t2(rowid, x) VALUES(2, 'c d e f g h');
+  INSERT INTO t2(rowid, x) VALUES(3, 'a b c d e f g h');
+} {}
+do_execsql_test 2.3 {
+  SELECT rowid FROM t2 WHERE t2 MATCH 'b'; SELECT '::';
+  SELECT rowid FROM t2 WHERE t2 MATCH 'e'; SELECT '::';
+  SELECT rowid FROM t2 WHERE t2 MATCH 'h'; 
+} {3 :: 1 2 3 :: 2 3}
+do_execsql_test 2.4 {
+  INSERT INTO t2(t2, rowid, x) VALUES('delete', 2, 'c d e f g h');
+  SELECT rowid FROM t2 WHERE t2 MATCH 'b'; SELECT '::';
+  SELECT rowid FROM t2 WHERE t2 MATCH 'e'; SELECT '::';
+  SELECT rowid FROM t2 WHERE t2 MATCH 'h'; 
+} {3 :: 1 3 :: 3}
+do_execsql_test 2.5 {
+  INSERT INTO t2(t2) VALUES('delete-all');
+  SELECT rowid FROM t2 WHERE t2 MATCH 'b'; SELECT '::';
+  SELECT rowid FROM t2 WHERE t2 MATCH 'e'; SELECT '::';
+  SELECT rowid FROM t2 WHERE t2 MATCH 'h'; 
+} {:: ::}
+do_execsql_test 2.6 {
+  INSERT INTO t2(rowid, x) VALUES(1, 'o t t f');
+  INSERT INTO t2(rowid, x) VALUES(2, 'f s s e');
+  INSERT INTO t2(rowid, x) VALUES(3, 'n t e t');
+}
+
+do_catchsql_test 2.7.1 {
+  SELECT rowid FROM t2
+} {1 {t2: table does not support scanning}}
+do_catchsql_test 2.7.2 {
+  SELECT rowid FROM t2 WHERE rowid=2
+} {1 {t2: table does not support scanning}}
+do_catchsql_test 2.7.3 {
+  SELECT rowid FROM t2 WHERE rowid BETWEEN 1 AND 3
+} {1 {t2: table does not support scanning}}
+
+do_execsql_test 2.X {
+  DROP TABLE t2
+}
+
+#-------------------------------------------------------------------------
+# Test the xColumnSize() API
+#
+fts5_aux_test_functions db
+
+do_execsql_test 3.1.0 {
+  CREATE VIRTUAL TABLE t3 USING fts5(x, y UNINDEXED, z, columnsize=0);
+  INSERT INTO t3 VALUES('a a', 'b b b', 'c');
+  INSERT INTO t3 VALUES('x a x', 'b b b y', '');
+}
+do_execsql_test 3.1.1 {
+  SELECT rowid, fts5_test_columnsize(t3) FROM t3 WHERE t3 MATCH 'a'
+} {
+  1 {2 0 1} 2 {3 0 0}
+}
+do_execsql_test 3.1.2 {
+  INSERT INTO t3 VALUES(NULL, NULL, 'a a a a');
+  DELETE FROM t3 WHERE rowid = 1;
+  SELECT rowid, fts5_test_columnsize(t3) FROM t3 WHERE t3 MATCH 'a'
+} {
+  2 {3 0 0} 3 {0 0 4}
+}
+
+do_execsql_test 3.2.0 {
+  CREATE VIRTUAL TABLE t4 USING fts5(x, y UNINDEXED, z, columnsize=0, content='');
+  INSERT INTO t4(rowid, x, y, z) VALUES(1, 'a a', 'b b b', 'c');
+  INSERT INTO t4(rowid, x, y, z) VALUES(2, 'x a x', 'b b b y', '');
+}
+do_execsql_test 3.2.1 {
+  SELECT rowid, fts5_test_columnsize(t4) FROM t4 WHERE t4 MATCH 'a'
+} {
+  1 {-1 0 -1} 2 {-1 0 -1}
+}
+
+#-------------------------------------------------------------------------
+# Test the integrity-check
+#
+do_execsql_test 4.1.1 {
+  CREATE VIRTUAL TABLE t5 USING fts5(x, columnsize=0);
+  INSERT INTO t5 VALUES('1 2 3 4');
+  INSERT INTO t5 VALUES('2 4 6 8');
+}
+
+do_execsql_test 4.1.2 {
+  INSERT INTO t5(t5) VALUES('integrity-check');
+}
+
+finish_test
diff --git a/ext/fts5/test/fts5config.test b/ext/fts5/test/fts5config.test
new file mode 100644
index 0000000000000000000000000000000000000000..28f3146ea3f7b6cf742a544b282e2e21ea5850d1
--- /dev/null
+++ b/ext/fts5/test/fts5config.test
@@ -0,0 +1,265 @@
+# 2015 Jan 13
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file focuses on the code in fts5_config.c, which is largely concerned
+# with parsing the various configuration and CREATE TABLE options.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5config
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+#-------------------------------------------------------------------------
+# Try different types of quote characters.
+#
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5('a', "b", [c], `d`);
+  PRAGMA table_info = t1;
+} {
+  0 a {} 0 {} 0 
+  1 b {} 0 {} 0 
+  2 c {} 0 {} 0 
+  3 d {} 0 {} 0
+}
+
+#-------------------------------------------------------------------------
+# Syntax errors in the prefix= option.
+#
+foreach {tn opt} {
+  1 {prefix=x}  
+  2 {prefix='x'}
+  3 {prefix='$'}
+  4 {prefix='1,2,'}
+  5 {prefix=',1'}
+  6 {prefix='1,2,3...'}
+  7 {prefix='1,2,3xyz'}
+} {
+  set res [list 1 {malformed prefix=... directive}]
+  do_catchsql_test 2.$tn "CREATE VIRTUAL TABLE f1 USING fts5(x, $opt)" $res
+}
+
+#-------------------------------------------------------------------------
+# Syntax errors in the 'rank' option.
+#
+foreach {tn val} {
+  1 "f1(xyz)"
+  2 "f1(zyx)"
+  3 "f1(nzz)"
+  4 "f1(x'!!')"
+  5 "f1(x':;')"
+  6 "f1(x'[]')"
+  7 "f1(x'{}')"
+  8 "f1('abc)"
+} {
+  do_catchsql_test 3.$tn {
+    INSERT INTO t1(t1, rank) VALUES('rank', $val);
+  } {1 {SQL logic error}}
+}
+
+#-------------------------------------------------------------------------
+# The parsing of SQL literals specified as part of 'rank' options.
+#
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE zzz USING fts5(one);
+  INSERT INTO zzz VALUES('a b c');
+}
+proc first {cmd A} { return $A }
+sqlite3_fts5_create_function db first first
+
+foreach {tn arg} {
+  1 "123"
+  2 "'01234567890ABCDEF'"
+  3 "x'0123'"
+  4 "x'ABCD'"
+  5 "x'0123456789ABCDEF'"
+  6 "x'0123456789abcdef'"
+  7 "22.5"
+  8 "-91.5"
+  9 "-.5"
+  10 "''''"
+  11 "+.5"
+} {
+  set func [string map {' ''} "first($arg)"]
+  do_execsql_test 4.1.$tn "
+    INSERT INTO zzz(zzz, rank) VALUES('rank', '$func');
+    SELECT rank IS $arg FROM zzz WHERE zzz MATCH 'a + b + c'
+  " 1
+}
+
+do_execsql_test 4.2 {
+  INSERT INTO zzz(zzz, rank) VALUES('rank', 'f1()');
+} {}
+
+#-------------------------------------------------------------------------
+# Misquoting in tokenize= and other options. 
+#
+do_catchsql_test 5.1 {
+  CREATE VIRTUAL TABLE xx USING fts5(x, tokenize="porter 'ascii");
+} {1 {parse error in tokenize directive}} 
+
+do_catchsql_test 5.2 {
+  CREATE VIRTUAL TABLE xx USING fts5(x, [y[]);
+} {0 {}}
+
+do_catchsql_test 5.3 {
+  CREATE VIRTUAL TABLE yy USING fts5(x, [y]]);
+} {1 {unrecognized token: "]"}}
+
+#-------------------------------------------------------------------------
+# Errors in prefix= directives.
+#
+do_catchsql_test 6.2 {
+  CREATE VIRTUAL TABLE abc USING fts5(a, prefix='1, 2, 1001');
+} {1 {prefix length out of range (max 999)}}
+do_catchsql_test 6.3 {
+  CREATE VIRTUAL TAbLE abc USING fts5(a, prefix='1, 2, 0000');
+} {1 {prefix length out of range (max 999)}}
+do_catchsql_test 6.4 {
+  CREATE VIRTUAL TABLE abc USING fts5(a, prefix='1  , 1000000');
+} {1 {prefix length out of range (max 999)}}
+
+#-------------------------------------------------------------------------
+# Duplicate tokenize= and other options.
+#
+do_catchsql_test 7.1 {
+  CREATE VIRTUAL TABLE abc USING fts5(a, tokenize=porter, tokenize=ascii);
+} {1 {multiple tokenize=... directives}}
+do_catchsql_test 7.2 {
+  CREATE VIRTUAL TABLE abc USING fts5(a, content=porter, content=ascii);
+} {1 {multiple content=... directives}}
+do_catchsql_test 7.3 {
+  CREATE VIRTUAL TABLE abc USING fts5(a, content_rowid=porter, content_rowid=a);
+} {1 {multiple content_rowid=... directives}}
+
+#-------------------------------------------------------------------------
+# Unrecognized option.
+#
+do_catchsql_test 8.0 {
+  CREATE VIRTUAL TABLE abc USING fts5(a, nosuchoption=123);
+} {1 {unrecognized option: "nosuchoption"}}
+do_catchsql_test 8.1 {
+  CREATE VIRTUAL TABLE abc USING fts5(a, "nosuchoption"=123);
+} {1 {parse error in ""nosuchoption"=123"}}
+
+#-------------------------------------------------------------------------
+# Errors in:
+#
+#   9.1.* 'pgsz' options.
+#   9.2.* 'automerge' options.
+#   9.3.* 'crisismerge' options.
+#   9.4.* a non-existant option.
+#   9.5.* 'hashsize' options.
+#
+do_execsql_test 9.0 {
+  CREATE VIRTUAL TABLE abc USING fts5(a, b);
+} {}
+do_catchsql_test 9.1.1 {
+  INSERT INTO abc(abc, rank) VALUES('pgsz', -5);
+} {1 {SQL logic error}}
+do_catchsql_test 9.1.2 {
+  INSERT INTO abc(abc, rank) VALUES('pgsz', 50000000);
+} {1 {SQL logic error}}
+do_catchsql_test 9.1.3 {
+  INSERT INTO abc(abc, rank) VALUES('pgsz', 66.67);
+} {1 {SQL logic error}}
+
+do_catchsql_test 9.2.1 {
+  INSERT INTO abc(abc, rank) VALUES('automerge', -5);
+} {1 {SQL logic error}}
+do_catchsql_test 9.2.2 {
+  INSERT INTO abc(abc, rank) VALUES('automerge', 50000000);
+} {1 {SQL logic error}}
+do_catchsql_test 9.2.3 {
+  INSERT INTO abc(abc, rank) VALUES('automerge', 66.67);
+} {1 {SQL logic error}}
+do_execsql_test 9.2.4 {
+  INSERT INTO abc(abc, rank) VALUES('automerge', 1);
+} {}
+
+do_catchsql_test 9.3.1 {
+  INSERT INTO abc(abc, rank) VALUES('crisismerge', -5);
+} {1 {SQL logic error}}
+do_catchsql_test 9.3.2 {
+  INSERT INTO abc(abc, rank) VALUES('crisismerge', 66.67);
+} {1 {SQL logic error}}
+do_execsql_test 9.3.3 {
+  INSERT INTO abc(abc, rank) VALUES('crisismerge', 1);
+} {}
+do_execsql_test 9.3.4 {
+  INSERT INTO abc(abc, rank) VALUES('crisismerge', 50000000);
+} {}
+
+do_catchsql_test 9.4.1 {
+  INSERT INTO abc(abc, rank) VALUES('nosuchoption', 1);
+} {1 {SQL logic error}}
+
+do_catchsql_test 9.5.1 {
+  INSERT INTO abc(abc, rank) VALUES('hashsize', 'not an integer');
+} {1 {SQL logic error}}
+do_catchsql_test 9.5.2 {
+  INSERT INTO abc(abc, rank) VALUES('hashsize', -500000);
+} {1 {SQL logic error}}
+do_catchsql_test 9.5.3 {
+  INSERT INTO abc(abc, rank) VALUES('hashsize', 500000);
+} {0 {}}
+
+#-------------------------------------------------------------------------
+# Too many prefix indexes. Maximum allowed is 31.
+#
+foreach {tn spec} {
+  1 {prefix="1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32"}
+  2 {prefix="1 2 3 4", prefix="5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32"}
+} {
+  set sql "CREATE VIRTUAL TABLE xyz USING fts5(x, $spec)"
+  do_catchsql_test 10.$tn $sql {1 {too many prefix indexes (max 31)}}
+}
+
+#-------------------------------------------------------------------------
+# errors in the detail= option.
+#
+foreach {tn opt} {
+  1 {detail=x}  
+  2 {detail='x'}
+  3 {detail='$'}
+  4 {detail='1,2,'}
+  5 {detail=',1'}
+  6 {detail=''}
+} {
+  set res [list 1 {malformed detail=... directive}]
+  do_catchsql_test 11.$tn "CREATE VIRTUAL TABLE f1 USING fts5(x, $opt)" $res
+}
+
+do_catchsql_test 12.1 {
+  INSERT INTO t1(t1, rank) VALUES('rank', NULL);;
+} {1 {SQL logic error}}
+
+#-------------------------------------------------------------------------
+# errors in the 'usermerge' option
+#
+do_execsql_test 13.0 {
+  CREATE VIRTUAL TABLE tt USING fts5(ttt);
+}
+foreach {tn val} {
+  1     -1
+  2     4.2
+  3     17
+  4     1
+} {
+  set sql "INSERT INTO tt(tt, rank) VALUES('usermerge', $val)"
+  do_catchsql_test 13.$tn $sql {1 {SQL logic error}}
+}
+
+finish_test
diff --git a/ext/fts5/test/fts5conflict.test b/ext/fts5/test/fts5conflict.test
new file mode 100644
index 0000000000000000000000000000000000000000..b5bf0a1160d6db9af9fe1ad5bc349f6c66915cbf
--- /dev/null
+++ b/ext/fts5/test/fts5conflict.test
@@ -0,0 +1,108 @@
+# 2015 October 27
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS5 module.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5conflict
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(x INTEGER PRIMARY KEY, a, b);
+  CREATE VIRTUAL TABLE ft USING fts5(a, b, content=t1, content_rowid=x);
+}
+
+do_execsql_test 1.1 {
+  REPLACE INTO ft(rowid, a, b) VALUES(1, 'a b c', 'a b c');
+  REPLACE INTO t1              VALUES(1, 'a b c', 'a b c');
+}
+
+do_execsql_test 1.2 {
+  INSERT INTO ft(ft) VALUES('integrity-check');
+}
+
+do_execsql_test 2.0 {
+  CREATE TABLE tbl(a INTEGER PRIMARY KEY, b, c);
+  CREATE VIRTUAL TABLE fts_idx USING fts5(b, c, content=tbl, content_rowid=a);
+  CREATE TRIGGER tbl_ai AFTER INSERT ON tbl BEGIN
+    INSERT INTO fts_idx(rowid, b, c) VALUES (new.a, new.b, new.c);
+  END;
+  CREATE TRIGGER tbl_ad AFTER DELETE ON tbl BEGIN
+    INSERT INTO fts_idx(fts_idx, rowid, b, c) 
+      VALUES('delete', old.a, old.b, old.c);
+  END;
+  CREATE TRIGGER tbl_au AFTER UPDATE ON tbl BEGIN
+    INSERT INTO fts_idx(fts_idx, rowid, b, c) 
+      VALUES('delete', old.a, old.b, old.c);
+    INSERT INTO fts_idx(rowid, b, c) VALUES (new.a, new.b, new.c);
+  END;
+}
+
+do_execsql_test 2.1 {
+  PRAGMA recursive_triggers = 1;
+  INSERT INTO tbl VALUES(1,   'x y z', '1 2 3');
+  INSERT INTO tbl VALUES(10,  'x y z', '1 2 3');
+  INSERT INTO tbl VALUES(100, 'x 1 z', '1 y 3');
+
+  UPDATE tbl SET b = '1 2 x' WHERE rowid=10;
+  REPLACE INTO tbl VALUES(1, '4 5 6', '3 2 1');
+  DELETE FROM tbl WHERE a=100;
+
+  INSERT INTO fts_idx(fts_idx) VALUES('integrity-check');
+}
+
+#-------------------------------------------------------------------------
+# Tests for OR IGNORE conflict handling.
+#
+reset_db
+foreach_detail_mode $::testprefix {
+
+  do_execsql_test 3.0 {
+    CREATE VIRTUAL TABLE t1 USING fts5(xyz, detail=%DETAIL%);
+
+    BEGIN;
+    INSERT INTO t1(rowid, xyz) VALUES(13, 'thirteen documents');
+    INSERT INTO t1(rowid, xyz) VALUES(14, 'fourteen documents');
+    INSERT INTO t1(rowid, xyz) VALUES(15, 'fifteen documents');
+    COMMIT;
+  }
+
+  set db_cksum [cksum]
+    foreach {tn sql} {
+    1 {
+      INSERT OR IGNORE INTO t1(rowid, xyz) VALUES(14, 'new text');
+    }
+    2 {
+      UPDATE OR IGNORE t1 SET rowid=13 WHERE rowid=15;
+    }
+    3 {
+      INSERT OR IGNORE INTO t1(rowid, xyz) 
+      SELECT 13, 'some text'
+      UNION ALL
+      SELECT 14, 'some text'
+      UNION ALL
+      SELECT 15, 'some text'
+    }
+  } {
+    do_execsql_test 3.1.$tn.1 $sql
+    do_test 3.1.$tn.2 { cksum } $db_cksum
+  }
+
+}
+
+
+finish_test
diff --git a/ext/fts5/test/fts5connect.test b/ext/fts5/test/fts5connect.test
new file mode 100644
index 0000000000000000000000000000000000000000..46077340ca2c804876460914bc2ca619e9bae092
--- /dev/null
+++ b/ext/fts5/test/fts5connect.test
@@ -0,0 +1,246 @@
+# 2017 August 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+
+
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5connect
+
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+#-------------------------------------------------------------------------
+# The tests in this file test the outcome of a schema-reset happening 
+# within the xConnect() method of an FTS5 table. At one point this
+# was causing a problem in SQLite. Each test proceeds as follows:
+#
+#   1. Connection [db] opens the db and reads from some unrelated, non-FTS5
+#      table causing SQLite to load the db schema into memory.
+#
+#   2. Connection [db2] opens the db and modifies the db schema.
+#
+#   3. Connection [db] reads or writes an existing fts5 table. That the
+#      schema has been modified is detected inside the fts5 xConnect() 
+#      callback that is invoked by sqlite3_prepare(). 
+#
+#   4. Verify that the statement in 3 has worked. SQLite should detect
+#      that the schema has changed and successfully prepare the 
+#      statement against the new schema.
+#
+# Test plan:
+#
+#   1.*: Trigger the xConnect()/schema-reset using statements executed
+#        directly against an FTS5 table.
+#
+#   2.*: Using various statements executed by various BEFORE triggers.
+#
+#   3.*: Using various statements executed by various AFTER triggers.
+#
+#   4.*: Using various statements executed by various INSTEAD OF triggers.
+#
+
+
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE ft1 USING fts5(a, b);
+  CREATE TABLE abc(x INTEGER PRIMARY KEY);
+  CREATE TABLE t1(i INTEGER PRIMARY KEY, a, b);
+
+  INSERT INTO ft1 VALUES('one', 'two');
+  INSERT INTO ft1 VALUES('three', 'four');
+}
+
+foreach {tn sql res} {
+  1 "SELECT * FROM ft1" {one two three four}
+  2 "REPLACE INTO ft1(rowid, a, b) VALUES(1, 'five', 'six')" {}
+  3 "SELECT * FROM ft1" {five six three four}
+  4 "INSERT INTO ft1 VALUES('seven', 'eight')" {}
+  5 "SELECT * FROM ft1" {five six three four seven eight}
+  6 "DELETE FROM ft1 WHERE rowid=2" {}
+  7 "UPDATE ft1 SET b='nine' WHERE rowid=1" {}
+  8 "SELECT * FROM ft1" {five nine seven eight}
+} {
+
+  catch { db close }
+  catch { db2 close }
+  sqlite3 db  test.db
+  sqlite3 db2 test.db
+
+  do_test 1.$tn.1 {
+    db eval { INSERT INTO abc DEFAULT VALUES }
+    db2 eval { CREATE TABLE newtable(x,y); DROP TABLE newtable }
+  } {}
+
+  do_execsql_test 1.$tn.2 $sql $res
+
+  do_execsql_test 1.$tn.3 {
+    INSERT INTO ft1(ft1) VALUES('integrity-check');
+  }
+}
+
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE ft2 USING fts5(a, b);
+  CREATE TABLE t2(a, b);
+  CREATE TABLE log(txt);
+
+  CREATE TRIGGER t2_ai AFTER INSERT ON t2 BEGIN
+    INSERT INTO ft2(rowid, a, b) VALUES(new.rowid, new.a, new.b);
+    INSERT INTO log VALUES('insert');
+  END;
+
+  CREATE TRIGGER t2_ad AFTER DELETE ON t2 BEGIN
+    DELETE FROM ft2 WHERE rowid = old.rowid;
+    INSERT INTO log VALUES('delete');
+  END;
+
+  CREATE TRIGGER t2_au AFTER UPDATE ON t2 BEGIN
+    UPDATE ft2 SET a=new.a, b=new.b WHERE rowid=new.rowid;
+    INSERT INTO log VALUES('update');
+  END;
+
+  INSERT INTO t2 VALUES('one', 'two');
+  INSERT INTO t2 VALUES('three', 'four');
+}
+
+foreach {tn sql res} {
+  1 "SELECT * FROM t2" {one two three four}
+  2 "REPLACE INTO t2(rowid, a, b) VALUES(1, 'five', 'six')" {}
+  3 "SELECT * FROM ft2" {five six three four}
+  4 "INSERT INTO t2 VALUES('seven', 'eight')" {}
+  5 "SELECT * FROM ft2" {five six three four seven eight}
+  6 "DELETE FROM t2 WHERE rowid=2" {}
+  7 "UPDATE t2 SET b='nine' WHERE rowid=1" {}
+  8 "SELECT * FROM ft2" {five nine seven eight}
+} {
+
+  catch { db close }
+  catch { db2 close }
+  sqlite3 db  test.db
+  sqlite3 db2 test.db
+
+  do_test 2.$tn.1 {
+    db eval { INSERT INTO abc DEFAULT VALUES }
+    db2 eval { CREATE TABLE newtable(x,y); DROP TABLE newtable }
+  } {}
+
+  do_execsql_test 2.$tn.2 $sql $res
+
+  do_execsql_test 2.$tn.3 {
+    INSERT INTO ft2(ft2) VALUES('integrity-check');
+  }
+}
+
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE ft3 USING fts5(a, b);
+  CREATE TABLE t3(a, b);
+
+  CREATE TRIGGER t3_ai BEFORE INSERT ON t3 BEGIN
+    INSERT INTO ft3(rowid, a, b) VALUES(new.rowid, new.a, new.b);
+    INSERT INTO log VALUES('insert');
+  END;
+
+  CREATE TRIGGER t3_ad BEFORE DELETE ON t3 BEGIN
+    DELETE FROM ft3 WHERE rowid = old.rowid;
+    INSERT INTO log VALUES('delete');
+  END;
+
+  CREATE TRIGGER t3_au BEFORE UPDATE ON t3 BEGIN
+    UPDATE ft3 SET a=new.a, b=new.b WHERE rowid=new.rowid;
+    INSERT INTO log VALUES('update');
+  END;
+
+  INSERT INTO t3(rowid, a, b) VALUES(1, 'one', 'two');
+  INSERT INTO t3(rowid, a, b) VALUES(2, 'three', 'four');
+}
+
+foreach {tn sql res} {
+  1 "SELECT * FROM t3" {one two three four}
+  2 "REPLACE INTO t3(rowid, a, b) VALUES(1, 'five', 'six')" {}
+  3 "SELECT * FROM ft3" {five six three four}
+  4 "INSERT INTO t3(rowid, a, b) VALUES(3, 'seven', 'eight')" {}
+  5 "SELECT * FROM ft3" {five six three four seven eight}
+  6 "DELETE FROM t3 WHERE rowid=2" {}
+  7 "UPDATE t3 SET b='nine' WHERE rowid=1" {}
+  8 "SELECT * FROM ft3" {five nine seven eight}
+} {
+
+  catch { db close }
+  catch { db2 close }
+  sqlite3 db  test.db
+  sqlite3 db2 test.db
+
+  do_test 3.$tn.1 {
+    db eval { INSERT INTO abc DEFAULT VALUES }
+    db2 eval { CREATE TABLE newtable(x,y); DROP TABLE newtable }
+  } {}
+
+  do_execsql_test 3.$tn.2 $sql $res
+
+  do_execsql_test 3.$tn.3 {
+    INSERT INTO ft3(ft3) VALUES('integrity-check');
+  }
+}
+
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE ft4 USING fts5(a, b);
+  CREATE VIEW v4 AS SELECT rowid, * FROM ft4;
+
+  CREATE TRIGGER t4_ai INSTEAD OF INSERT ON v4 BEGIN
+    INSERT INTO ft4(rowid, a, b) VALUES(new.rowid, new.a, new.b);
+    INSERT INTO log VALUES('insert');
+  END;
+
+  CREATE TRIGGER t4_ad INSTEAD OF DELETE ON v4 BEGIN
+    DELETE FROM ft4 WHERE rowid = old.rowid;
+    INSERT INTO log VALUES('delete');
+  END;
+
+  CREATE TRIGGER t4_au INSTEAD OF UPDATE ON v4 BEGIN
+    UPDATE ft4 SET a=new.a, b=new.b WHERE rowid=new.rowid;
+    INSERT INTO log VALUES('update');
+  END;
+
+  INSERT INTO ft4(rowid, a, b) VALUES(1, 'one', 'two');
+  INSERT INTO ft4(rowid, a, b) VALUES(2, 'three', 'four');
+}
+
+foreach {tn sql res} {
+  1 "SELECT * FROM ft4" {one two three four}
+  2 "REPLACE INTO v4(rowid, a, b) VALUES(1, 'five', 'six')" {}
+  3 "SELECT * FROM ft4" {five six three four}
+  4 "INSERT INTO v4(rowid, a, b) VALUES(3, 'seven', 'eight')" {}
+  5 "SELECT * FROM ft4" {five six three four seven eight}
+  6 "DELETE FROM v4 WHERE rowid=2" {}
+  7 "UPDATE v4 SET b='nine' WHERE rowid=1" {}
+  8 "SELECT * FROM ft4" {five nine seven eight}
+} {
+
+  catch { db close }
+  catch { db2 close }
+  sqlite3 db  test.db
+  sqlite3 db2 test.db
+
+  do_test 4.$tn.1 {
+    db eval { INSERT INTO abc DEFAULT VALUES }
+    db2 eval { CREATE TABLE newtable(x,y); DROP TABLE newtable }
+  } {}
+
+  do_execsql_test 4.$tn.2 $sql $res
+
+  do_execsql_test 4.$tn.3 {
+    INSERT INTO ft3(ft3) VALUES('integrity-check');
+  }
+}
+
+finish_test
diff --git a/ext/fts5/test/fts5content.test b/ext/fts5/test/fts5content.test
new file mode 100644
index 0000000000000000000000000000000000000000..05b5cc611345f8b98cd4d19387b27349c657d492
--- /dev/null
+++ b/ext/fts5/test/fts5content.test
@@ -0,0 +1,368 @@
+# 2014 Dec 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains tests for the content= and content_rowid= options.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5content
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+#-------------------------------------------------------------------------
+# Contentless tables
+#
+do_execsql_test 1.1 {
+  CREATE VIRTUAL TABLE f1 USING fts5(a, b, content='');
+  INSERT INTO f1(rowid, a, b) VALUES(1, 'one',   'o n e');
+  INSERT INTO f1(rowid, a, b) VALUES(2, 'two',   't w o');
+  INSERT INTO f1(rowid, a, b) VALUES(3, 'three', 't h r e e');
+}
+
+do_execsql_test 1.2 {
+  SELECT rowid FROM f1 WHERE f1 MATCH 'o';
+} {1 2}
+
+do_execsql_test 1.3 {
+  INSERT INTO f1(a, b) VALUES('four',   'f o u r');
+  SELECT rowid FROM f1 WHERE f1 MATCH 'o';
+} {1 2 4}
+
+do_execsql_test 1.4 {
+  SELECT rowid, a, b FROM f1 WHERE f1 MATCH 'o';
+} {1 {} {} 2 {} {} 4 {} {}}
+
+do_execsql_test 1.5 {
+  SELECT rowid, highlight(f1, 0, '[', ']') FROM f1 WHERE f1 MATCH 'o';
+} {1 {} 2 {} 4 {}}
+
+do_execsql_test 1.6 {
+  SELECT rowid, highlight(f1, 0, '[', ']') IS NULL FROM f1 WHERE f1 MATCH 'o';
+} {1 1 2 1 4 1}
+
+do_execsql_test 1.7 {
+  SELECT rowid, snippet(f1, -1, '[', ']', '...', 5) IS NULL 
+  FROM f1 WHERE f1 MATCH 'o';
+} {1 1 2 1 4 1}
+
+do_execsql_test 1.8 {
+  SELECT rowid, snippet(f1, 1, '[', ']', '...', 5) IS NULL 
+  FROM f1 WHERE f1 MATCH 'o';
+} {1 1 2 1 4 1}
+
+do_execsql_test 1.9 {
+  SELECT rowid FROM f1;
+} {1 2 3 4}
+
+do_execsql_test 1.10 {
+  SELECT * FROM f1;
+} {{} {}  {} {}  {} {}  {} {}}
+
+do_execsql_test 1.11 {
+  SELECT rowid, a, b FROM f1 ORDER BY rowid ASC;
+} {1 {} {}  2 {} {}  3 {} {}  4 {} {}}
+
+do_execsql_test 1.12 {
+  SELECT a IS NULL FROM f1;
+} {1 1 1 1}
+
+do_catchsql_test 1.13 {
+  DELETE FROM f1 WHERE rowid = 2;
+} {1 {cannot DELETE from contentless fts5 table: f1}}
+
+do_catchsql_test 1.14 {
+  UPDATE f1 SET a = 'a b c' WHERE rowid = 2;
+} {1 {cannot UPDATE contentless fts5 table: f1}}
+
+do_execsql_test 1.15 {
+  INSERT INTO f1(f1, rowid, a, b) VALUES('delete', 2, 'two', 't w o');
+} {}
+
+do_execsql_test 1.16 {
+  SELECT rowid FROM f1 WHERE f1 MATCH 'o';
+} {1 4}
+
+do_execsql_test 1.17 {
+  SELECT rowid FROM f1;
+} {1 3 4}
+
+#-------------------------------------------------------------------------
+# External content tables
+#
+reset_db
+do_execsql_test 2.1 {
+  -- Create a table. And an external content fts5 table to index it.
+  CREATE TABLE tbl(a INTEGER PRIMARY KEY, b, c);
+  CREATE VIRTUAL TABLE fts_idx USING fts5(b, c, content='tbl', content_rowid='a');
+
+  -- Triggers to keep the FTS index up to date.
+  CREATE TRIGGER tbl_ai AFTER INSERT ON tbl BEGIN
+    INSERT INTO fts_idx(rowid, b, c) VALUES (new.a, new.b, new.c);
+  END;
+  CREATE TRIGGER tbl_ad AFTER DELETE ON tbl BEGIN
+    INSERT INTO fts_idx(fts_idx, rowid, b, c) 
+        VALUES('delete', old.a, old.b, old.c);
+  END;
+  CREATE TRIGGER tbl_au AFTER UPDATE ON tbl BEGIN
+    INSERT INTO fts_idx(fts_idx, rowid, b, c) 
+        VALUES('delete', old.a, old.b, old.c);
+    INSERT INTO fts_idx(rowid, b, c) VALUES (new.a, new.b, new.c);
+  END;
+}
+
+do_execsql_test 2.2 {
+  INSERT INTO tbl VALUES(1, 'one', 'o n e');
+  INSERT INTO tbl VALUES(NULL, 'two', 't w o');
+  INSERT INTO tbl VALUES(3, 'three', 't h r e e');
+}
+
+do_execsql_test 2.3 {
+  INSERT INTO fts_idx(fts_idx) VALUES('integrity-check');
+}
+
+do_execsql_test 2.4 {
+  DELETE FROM tbl WHERE rowid=2;
+  INSERT INTO fts_idx(fts_idx) VALUES('integrity-check');
+}
+
+do_execsql_test 2.5 {
+  UPDATE tbl SET c = c || ' x y z';
+  INSERT INTO fts_idx(fts_idx) VALUES('integrity-check');
+}
+
+do_execsql_test 2.6 {
+  SELECT * FROM fts_idx WHERE fts_idx MATCH 't AND x';
+} {three {t h r e e x y z}}
+
+do_execsql_test 2.7 {
+  SELECT highlight(fts_idx, 1, '[', ']') FROM fts_idx 
+  WHERE fts_idx MATCH 't AND x';
+} {{[t] h r e e [x] y z}}
+
+#-------------------------------------------------------------------------
+# Quick tests of the 'delete-all' command.
+#
+do_execsql_test 3.1 {
+  CREATE VIRTUAL TABLE t3 USING fts5(x, content='');
+  INSERT INTO t3 VALUES('a b c');
+  INSERT INTO t3 VALUES('d e f');
+}
+
+do_execsql_test 3.2 {
+  SELECT count(*) FROM t3_docsize;
+  SELECT count(*) FROM t3_data;
+} {2 4}
+
+do_execsql_test 3.3 {
+  INSERT INTO t3(t3) VALUES('delete-all');
+  SELECT count(*) FROM t3_docsize;
+  SELECT count(*) FROM t3_data;
+} {0 2}
+
+do_execsql_test 3.4 {
+  INSERT INTO t3 VALUES('a b c');
+  INSERT INTO t3 VALUES('d e f');
+  SELECT rowid FROM t3 WHERE t3 MATCH 'e';
+} {2}
+
+do_execsql_test 3.5 {
+  SELECT rowid FROM t3 WHERE t3 MATCH 'c';
+} {1}
+
+do_execsql_test 3.6 {
+  SELECT count(*) FROM t3_docsize;
+  SELECT count(*) FROM t3_data;
+} {2 4}
+
+do_execsql_test 3.7 {
+  CREATE VIRTUAL TABLE t4 USING fts5(x);
+} {}
+do_catchsql_test 3.8 {
+  INSERT INTO t4(t4) VALUES('delete-all');
+} {1 {'delete-all' may only be used with a contentless or external content fts5 table}}
+
+#-------------------------------------------------------------------------
+# Test an external content table with a more interesting schema.
+#
+do_execsql_test 4.1 {
+  CREATE TABLE x2(a, "key col" PRIMARY KEY, b, c) WITHOUT ROWID;
+  INSERT INTO x2 VALUES('a b',   1, 'c d' , 'e f');
+  INSERT INTO x2 VALUES('x y', -40, 'z z' , 'y x');
+
+  CREATE VIRTUAL TABLE t2 USING fts5(a, c, content=x2, content_rowid='key col');
+  INSERT INTO t2(t2) VALUES('rebuild');
+}
+
+do_execsql_test 4.2 { SELECT rowid FROM t2 } {-40 1}
+do_execsql_test 4.3 { SELECT rowid FROM t2 WHERE t2 MATCH 'c'} {}
+do_execsql_test 4.4 { SELECT rowid FROM t2 WHERE t2 MATCH 'a'} {1}
+do_execsql_test 4.5 { SELECT rowid FROM t2 WHERE t2 MATCH 'x'} {-40}
+
+do_execsql_test 4.6 { INSERT INTO t2(t2) VALUES('integrity-check') } {}
+
+do_execsql_test 4.7 { 
+  DELETE FROM x2 WHERE "key col" = 1;
+  INSERT INTO t2(t2, rowid, a, c) VALUES('delete', 1, 'a b', 'e f');
+  INSERT INTO t2(t2) VALUES('integrity-check');
+}
+
+do_execsql_test 4.8 { SELECT rowid FROM t2 WHERE t2 MATCH 'b'} {}
+do_execsql_test 4.9 { SELECT rowid FROM t2 WHERE t2 MATCH 'y'} {-40}
+
+#-------------------------------------------------------------------------
+# Test that if the 'rowid' field of a 'delete' is not an integer, no
+# changes are made to the FTS index.
+#
+do_execsql_test 5.0 {
+  CREATE VIRTUAL TABLE t5 USING fts5(a, b, content=);
+  INSERT INTO t5(rowid, a, b) VALUES(-1, 'one',   'two');
+  INSERT INTO t5(rowid, a, b) VALUES( 0, 'three', 'four');
+  INSERT INTO t5(rowid, a, b) VALUES( 1, 'five',  'six');
+}
+
+set ::checksum [execsql {SELECT md5sum(id, block) FROM t5_data}]
+
+do_execsql_test 5.1 {
+  INSERT INTO t5(t5, rowid, a, b) VALUES('delete', NULL, 'three', 'four');
+  SELECT md5sum(id, block) FROM t5_data;
+} $::checksum
+
+
+#-------------------------------------------------------------------------
+# Check that a contentless table can be dropped.
+#
+reset_db
+do_execsql_test 6.1 {
+  CREATE VIRTUAL TABLE xx USING fts5(x, y, content="");
+  SELECT name FROM sqlite_master;
+} {xx xx_data xx_idx xx_docsize xx_config}
+do_execsql_test 6.2 {
+  DROP TABLE xx;
+  SELECT name FROM sqlite_master;
+} {}
+
+#---------------------------------------------------------------------------
+# Check that an fts5 table cannot be its own content table.
+#
+reset_db
+do_execsql_test 7.1.1 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, c=t1 );
+  INSERT INTO t1( a ) VALUES('abc');
+}
+do_catchsql_test 7.1.2 { 
+  SELECT * FROM t1; 
+} {1 {recursively defined fts5 content table}}
+do_catchsql_test 7.1.3 { 
+  SELECT * FROM t1('abc'); 
+} {1 {recursively defined fts5 content table}}
+do_catchsql_test 7.1.4 { 
+  SELECT count(*) FROM t1;
+} {1 {recursively defined fts5 content table}}
+do_catchsql_test 7.1.5 { 
+  SELECT * FROM t1('abc') ORDER BY rank;
+} {1 {recursively defined fts5 content table}}
+
+reset_db
+do_execsql_test 7.2.1 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, c=t2 );
+  CREATE VIRTUAL TABLE t2 USING fts5(a, c=t1 );
+  INSERT INTO t1( a ) VALUES('abc');
+}
+do_catchsql_test 7.2.2 { 
+  SELECT * FROM t1; 
+} {1 {recursively defined fts5 content table}}
+do_catchsql_test 7.2.3 { 
+  SELECT * FROM t1('abc'); 
+} {1 {recursively defined fts5 content table}}
+do_catchsql_test 7.2.4 { 
+  SELECT count(*) FROM t1;
+} {1 {recursively defined fts5 content table}}
+do_catchsql_test 7.2.5 { 
+  SELECT * FROM t1('abc') ORDER BY rank;
+} {1 {recursively defined fts5 content table}}
+
+#---------------------------------------------------------------------------
+# Check that if the content table is a view, and that view contains an
+# error, a reasonable error message is returned if the user tries to
+# read from the view via the fts5 table.
+#
+reset_db
+do_execsql_test 8.1 {
+  CREATE VIEW a1 AS 
+    SELECT 1 AS r, text_value(1) AS t
+      UNION ALL
+    SELECT 2 AS r, text_value(2) AS t;
+
+  CREATE VIRTUAL TABLE t1 USING fts5(t, content='a1', content_rowid='r');
+}
+
+foreach {tn sql} {
+  1 "SELECT * FROM t1"
+  2 "INSERT INTO t1(t1) VALUES('rebuild')"
+  3 "SELECT * FROM t1 WHERE rowid=1"
+} {
+  do_catchsql_test 8.2.$tn $sql {1 {no such function: text_value}}
+}
+
+proc text_value {i} {
+  if {$i==1} { return "one" }
+  if {$i==2} { return "two" }
+  return "many"
+}
+db func text_value text_value
+
+do_execsql_test 8.3.1 { SELECT * FROM t1 } {one two}
+do_execsql_test 8.3.2 { INSERT INTO t1(t1) VALUES('rebuild') }
+do_execsql_test 8.3.3 { SELECT * FROM t1 WHERE rowid=1 } {one}
+do_execsql_test 8.3.4 { SELECT rowid FROM t1('two') } {2}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 9.1 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+  INSERT INTO t1 VALUES(1, 'one two three');
+  INSERT INTO t1 VALUES(2, 'one two three');
+
+  CREATE VIRTUAL TABLE ft USING fts5(b, content=t1, content_rowid=a);
+  INSERT INTO ft(ft) VALUES('rebuild');
+}
+
+do_execsql_test 9.2 {
+  SELECT rowid, b FROM ft('two');
+} {
+  1 {one two three}
+  2 {one two three}
+}
+
+do_execsql_test 9.3 {
+  DELETE FROM t1 WHERE a=2;
+} 
+
+do_catchsql_test 9.4 {
+  SELECT rowid FROM ft('two');
+} {0 {1 2}}
+
+do_catchsql_test 9.5 {
+  SELECT * FROM ft('two');
+} {1 {fts5: missing row 2 from content table 'main'.'t1'}}
+
+fts5_aux_test_functions db
+
+do_catchsql_test 9.6 {
+  SELECT rowid, fts5_columntext(ft, 0) FROM ft('two');
+} {1 SQLITE_CORRUPT_VTAB}
+
+finish_test
+
diff --git a/ext/fts5/test/fts5contentless.test b/ext/fts5/test/fts5contentless.test
new file mode 100644
index 0000000000000000000000000000000000000000..991e9888fca37b244792ba74dcfa9f15cfb0d528
--- /dev/null
+++ b/ext/fts5/test/fts5contentless.test
@@ -0,0 +1,290 @@
+# 2014 Dec 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains tests for the content= and content_rowid= options.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5contentless
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+# Check that it is not possible to specify "contentless_delete=1" for 
+# anything other than a contentless table.
+#
+set res(0) {0 {}}
+set res(1) {1 {contentless_delete=1 requires a contentless table}}
+foreach {tn sql bError} {
+  1 "(a, b, contentless_delete=1)"              1
+  2 "(a, b, contentless_delete=1, content=abc)" 1
+  3 "(a, b, contentless_delete=1, content=)"    0
+  4 "(content=, contentless_delete=1, a)"       0
+  5 "(content='', contentless_delete=1, hello)" 0
+} {
+  execsql { BEGIN }
+  do_catchsql_test 1.$tn "CREATE VIRTUAL TABLE t1 USING fts5 $sql" $res($bError)
+  execsql { ROLLBACK }
+}
+
+# Check that it is not possible to specify "contentless_delete=1" 
+# along with columnsize=1. 
+#
+set res(0) {0 {}}
+set res(1) {1 {contentless_delete=1 is incompatible with columnsize=0}}
+foreach {tn sql bError} {
+  2 "(a, b, content='', contentless_delete=1, columnsize=0)" 1 
+} {
+  execsql { BEGIN }
+  do_catchsql_test 1.$tn "CREATE VIRTUAL TABLE t1 USING fts5 $sql" $res($bError)
+  execsql { ROLLBACK }
+}
+
+# Check that if contentless_delete=1 is specified, then the "origin" 
+# column is added to the %_docsize table.
+reset_db
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE x1 USING fts5(c, content='');
+  CREATE VIRTUAL TABLE x2 USING fts5(c, content='', contentless_delete=1);
+}
+do_execsql_test 3.1 {
+  SELECT sql FROM sqlite_schema WHERE name IN ('x1_docsize', 'x2_docsize');
+} {
+  {CREATE TABLE 'x1_docsize'(id INTEGER PRIMARY KEY, sz BLOB)} 
+  {CREATE TABLE 'x2_docsize'(id INTEGER PRIMARY KEY, sz BLOB, origin INTEGER)}
+}
+
+do_execsql_test 3.2.1 {
+  SELECT hex(block) FROM x1_data WHERE id=10
+} {00000000000000}
+do_execsql_test 3.2.2 {
+  SELECT hex(block) FROM x2_data WHERE id=10
+} {00000000FF000001000000}
+
+do_execsql_test 3.3 {
+  INSERT INTO x2 VALUES('first text');
+  INSERT INTO x2 VALUES('second text');
+}
+do_execsql_test 3.4 {
+  SELECT id, origin FROM x2_docsize
+} {1 1 2 2}
+do_execsql_test 3.5 {
+  SELECT level, segment, loc1, loc2 FROM fts5_structure(
+    (SELECT block FROM x2_data WHERE id=10)
+  )
+} {
+  0 0   1 1
+  0 1   2 2
+}
+do_execsql_test 3.6 {
+  INSERT INTO x2(x2) VALUES('optimize');
+}
+do_execsql_test 3.7 {
+  SELECT level, segment, loc1, loc2 FROM fts5_structure(
+    (SELECT block FROM x2_data WHERE id=10)
+  )
+} {
+  1 0   1 2
+}
+
+do_execsql_test 3.8 {
+  DELETE FROM x2 WHERE rowid=2;
+}
+
+do_execsql_test 3.9 {
+  SELECT rowid FROM x2('text')
+} {1}
+
+#--------------------------------------------------------------------------
+reset_db
+proc document {n} {
+  set vocab [list A B C D E F G H I J K L M N O P Q R S T U V W X Y Z]
+  set ret [list]
+  for {set ii 0} {$ii < $n} {incr ii} {
+    lappend ret [lindex $vocab [expr int(rand()*[llength $vocab])]]
+  }
+  set ret
+}
+
+set nRow 1000
+
+do_execsql_test 4.0 {
+  CREATE TABLE t1(x);
+  CREATE VIRTUAL TABLE ft USING fts5(x, content='', contentless_delete=1);
+  INSERT INTO ft(ft, rank) VALUES('pgsz', 100);
+}
+do_test 4.1 {
+  for {set ii 0} {$ii < $nRow} {incr ii} {
+    set doc [document 6]
+    execsql {
+      INSERT INTO t1 VALUES($doc);
+      INSERT INTO ft VALUES($doc);
+    }
+  }
+} {}
+
+foreach v {A B C D E F G H I J K L M N O P Q R S T U V W X Y Z} {
+  set L1 [execsql {SELECT rowid FROM t1 WHERE x LIKE '%'||$v||'%'}]
+  set L2 [execsql {SELECT rowid FROM ft($v)}]
+  do_test 4.2.$v { set L1 } $L2
+}
+
+do_test 4.3 {
+  for {set ii 1} {$ii < $nRow} {incr ii 2} { 
+    execsql {
+       DELETE FROM ft WHERE rowid=$ii;
+       DELETE FROM t1 WHERE rowid=$ii;
+    }
+  }
+} {}
+
+foreach v {A B C D E F G H I J K L M N O P Q R S T U V W X Y Z} {
+  set L1 [execsql {SELECT rowid FROM t1 WHERE x LIKE '%'||$v||'%'}]
+  set L2 [execsql {SELECT rowid FROM ft($v)}]
+  do_test 4.4.$v { set L1 } $L2
+}
+
+do_execsql_test 4.5 {
+  INSERT INTO ft(ft) VALUES('optimize');
+} {}
+
+foreach v {A B C D E F G H I J K L M N O P Q R S T U V W X Y Z} {
+  set L1 [execsql {SELECT rowid FROM t1 WHERE x LIKE '%'||$v||'%'}]
+  set L2 [execsql {SELECT rowid FROM ft($v)}]
+  do_test 4.6.$v { set L1 } $L2
+}
+
+#execsql_pp { SELECT fts5_decode(id, block) FROM ft_data }
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 5.0 {
+  CREATE VIRTUAL TABLE ft USING fts5(x, content='', contentless_delete=1);
+  INSERT INTO ft(rowid, x) VALUES(1, 'one two three');
+  INSERT INTO ft(rowid, x) VALUES(2, 'one two four');
+  INSERT INTO ft(rowid, x) VALUES(3, 'one two five');
+  INSERT INTO ft(rowid, x) VALUES(4, 'one two seven');
+  INSERT INTO ft(rowid, x) VALUES(5, 'one two eight');
+}
+
+do_execsql_test 5.1 {
+  DELETE FROM ft WHERE rowid=2
+}
+
+do_execsql_test 5.2 {
+  SELECT rowid FROM ft
+} {1 3 4 5}
+
+do_catchsql_test 5.3 {
+  UPDATE ft SET x='four six' WHERE rowid=3
+} {0 {}}
+
+do_execsql_test 5.4 {
+  SELECT rowid FROM ft('one');
+} {1 4 5}
+
+do_execsql_test 5.5 {
+  REPLACE INTO ft(rowid, x) VALUES(3, 'four six');
+  SELECT rowid FROM ft('one');
+} {1 4 5}
+
+do_execsql_test 5.6 {
+  REPLACE INTO ft(rowid, x) VALUES(6, 'one two eleven');
+  SELECT rowid FROM ft('one');
+} {1 4 5 6}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 6.0 {
+  CREATE VIRTUAL TABLE ft USING fts5(x, content='', contentless_delete=1);
+  INSERT INTO ft(rowid, x) VALUES(1, 'one two three');
+  INSERT INTO ft(rowid, x) VALUES(2, 'one two four');
+}
+
+do_test 6.1 {
+  db eval { SELECT rowid FROM ft('one two') } {
+    if {$rowid==1} {
+      db eval { INSERT INTO ft(rowid, x) VALUES(3, 'one two four') }
+    }
+  }
+} {}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 7.0 {
+  CREATE VIRTUAL TABLE ft USING fts5(x, content='', contentless_delete=1);
+}
+
+set lRowid [list -450 0 1 2 42]
+
+do_test 7.1 {
+  execsql BEGIN
+  foreach r $lRowid {
+    execsql { INSERT INTO ft(rowid, x) VALUES($r, 'one one one'); }
+  }
+  execsql COMMIT
+} {}
+
+do_test 7.2 {
+  execsql BEGIN
+  foreach r $lRowid {
+    execsql { REPLACE INTO ft(rowid, x) VALUES($r, 'two two two'); }
+  }
+  execsql COMMIT
+} {}
+
+do_execsql_test 7.3 { SELECT rowid FROM ft('one'); } {}
+do_execsql_test 7.4 { SELECT rowid FROM ft('two'); } $lRowid
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 8.0 {
+  CREATE VIRTUAL TABLE ft USING fts5(x, content='', contentless_delete=1);
+  INSERT INTO ft VALUES('hello world');
+  INSERT INTO ft VALUES('one two three');
+}
+
+do_catchsql_test 8.1 {
+  INSERT INTO ft(ft, rowid, x) VALUES('delete', 1, 'hello world');
+} {1 {'delete' may not be used with a contentless_delete=1 table}}
+
+do_execsql_test 8.2 {
+  BEGIN;
+    INSERT INTO ft(rowid, x) VALUES(3, 'four four four');
+    DELETE FROM ft WHERE rowid=3;
+  COMMIT;
+  SELECT rowid FROM ft('four');
+} {}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 9.0 {
+  CREATE VIRTUAL TABLE ft USING fts5(x, content='', contentless_delete=0);
+  INSERT INTO ft VALUES('hello world');
+  INSERT INTO ft VALUES('one two three');
+}
+
+do_catchsql_test 9.1 {
+  INSERT INTO ft(ft, rowid, x) VALUES('delete', 1, 'hello world');
+} {0 {}}
+
+do_catchsql_test 9.2 {
+  CREATE VIRTUAL TABLE ft2 USING fts5(x, content='', contentless_delete=2);
+} {1 {malformed contentless_delete=... directive}}
+
+do_catchsql_test 9.3 {
+  CREATE VIRTUAL TABLE ft2 USING fts5(x, content='', contentless_delete=11);
+} {1 {malformed contentless_delete=... directive}}
+
+finish_test
diff --git a/ext/fts5/test/fts5contentless2.test b/ext/fts5/test/fts5contentless2.test
new file mode 100644
index 0000000000000000000000000000000000000000..248534bce482cf683fa4de84cc63cc4cee30ada6
--- /dev/null
+++ b/ext/fts5/test/fts5contentless2.test
@@ -0,0 +1,207 @@
+# 2023 July 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains tests for the content= and content_rowid= options.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5contentless2
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+proc vocab {} {
+  list aaa bbb ccc ddd eee fff ggg hhh iii jjj kkk lll mmm nnn ooo ppp
+}
+
+proc document {nToken} {
+  set doc [list]
+  set vocab [vocab]
+  for {set ii 0} {$ii < $nToken} {incr ii} {
+    lappend doc [lindex $vocab [expr int(rand()*[llength $vocab])]]
+  }
+  set doc
+}
+db func document document
+
+proc contains {doc token} {
+  expr {[lsearch $doc $token]>=0}
+}
+db func contains contains
+
+proc do_compare_tables_test {tn} {
+  uplevel [list do_test $tn {
+    foreach v [vocab] {
+      set l1 [execsql { SELECT rowid FROM t1 WHERE contains(doc, $v) }]
+      set l2 [execsql { SELECT rowid FROM t2($v) }]
+      if {$l1!=$l2} { error "1: query mismatch ($l1) ($l2)" }
+
+      set w "[string range $v 0 1]*"
+      set l1 [execsql { SELECT rowid FROM t1 WHERE contains(doc, $w) }]
+      set l2 [execsql { SELECT rowid FROM t2($w) }]
+      if {$l1!=$l2} { error "2: query mismatch ($l1) ($l2)" }
+
+      set w "[string range $v 0 0]*"
+      set l1 [execsql { SELECT rowid FROM t1 WHERE contains(doc, $w) }]
+      set l2 [execsql { SELECT rowid FROM t2($w) }]
+      if {$l1!=$l2} { error "2: query mismatch ($l1) ($l2)" }
+
+      set l1 [execsql { 
+        SELECT rowid FROM t1 WHERE contains(doc, $v) ORDER BY rowid DESC 
+      }]
+      set l2 [execsql { SELECT rowid FROM t2($v) ORDER BY rowid DESC }]
+      if {$l1!=$l2} { error "1: query mismatch ($l1) ($l2)" }
+    }
+    set {} {}
+  } {}]
+}
+
+proc lshuffle {in} {
+  set L [list]
+  set ret [list]
+  foreach elem $in { lappend L [list [expr rand()] $elem] }
+  foreach pair [lsort -index 0 $L] { lappend ret [lindex $pair 1] }
+  set ret
+}
+
+expr srand(0)
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t2 USING fts5(
+      doc, prefix=2, content=, contentless_delete=1
+  );
+
+  CREATE TABLE t1(doc);
+  CREATE TRIGGER tr1 AFTER DELETE ON t1 BEGIN
+    DELETE FROM t2 WHERE rowid = old.rowid;
+  END;
+}
+
+set SMALLEST64 -9223372036854775808
+set LARGEST64   9223372036854775807
+
+foreach {tn r1 r2} {
+  1   0               50
+  2   $SMALLEST64     $SMALLEST64+50
+  3   $LARGEST64-50   $LARGEST64
+  4   -50             -1
+} {
+  set r1 [expr $r1]
+  set r2 [expr $r2]
+
+  do_test 1.1.$tn {
+    execsql BEGIN
+    for {set ii $r1} {$ii <= $r2} {incr ii} {
+      execsql { INSERT INTO t1(rowid, doc) VALUES ($ii, document(8)); }
+    }
+    execsql COMMIT
+  } {}
+}
+do_test 1.2 {
+  db eval { SELECT rowid, doc FROM t1 } {
+    execsql { INSERT INTO t2(rowid, doc) VALUES($rowid, $doc) }
+  }
+} {}
+
+foreach {tn rowid} {
+  1  $SMALLEST64
+  2  0
+  3  -5
+  4  -30
+  5  $LARGEST64
+  6  $LARGEST64-1
+} {
+  set rowid [expr $rowid]
+  do_execsql_test 1.3.$tn.1 {
+    DELETE FROM t1 WHERE rowid=$rowid
+  }
+  do_compare_tables_test 1.3.$tn.2
+}
+
+set iTest 1
+foreach r [lshuffle [execsql {SELECT rowid FROM t1}]] {
+  if {($iTest % 50)==0} {
+    execsql { INSERT INTO t2(t2) VALUES('optimize') }
+  }
+  if {($iTest % 5)==0} {
+    execsql { INSERT INTO t2(t2, rank) VALUES('merge', 5) }
+  }
+  do_execsql_test 1.4.$iTest.1($r) {
+    DELETE FROM t1 WHERE rowid=$r
+  }
+  do_compare_tables_test 1.4.$iTest.2
+  incr iTest
+}
+
+do_execsql_test 1.5 {
+  SELECT * FROM t1
+} {}
+
+#-------------------------------------------------------------------------
+reset_db
+db func document document
+
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE t2 USING fts5(doc, content=, contentless_delete=1);
+  WITH s(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<1000
+  )
+  INSERT INTO t2(rowid, doc) SELECT i, i || ' ' || i FROM s;
+}
+
+do_execsql_test 2.1 {
+  BEGIN;
+    DELETE FROM t2 WHERE rowid=32;
+    DELETE FROM t2 WHERE rowid=64;
+    DELETE FROM t2 WHERE rowid=96;
+    DELETE FROM t2 WHERE rowid=128;
+    DELETE FROM t2 WHERE rowid=160;
+    DELETE FROM t2 WHERE rowid=192;
+  COMMIT;
+}
+
+do_execsql_test 2.2 {
+  SELECT * FROM t2('128');
+} {}
+
+#-------------------------------------------------------------------------
+
+foreach {tn step} {
+  1     3 
+  2     7
+  3     15
+} {
+  set step [expr $step]
+
+  reset_db
+  db func document document
+  do_execsql_test 3.$tn.0 {
+    CREATE VIRTUAL TABLE t2 USING fts5(doc, content=, contentless_delete=1);
+    INSERT INTO t2(t2, rank) VALUES('pgsz', 100);
+    WITH s(i) AS (
+        SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<1000
+    )
+    INSERT INTO t2(rowid, doc) SELECT i, i || ' ' || i FROM s;
+  }
+  do_execsql_test 3.$tn.1 {
+    DELETE FROM t2 WHERE (rowid % $step)==0
+  }
+  do_execsql_test 3.$tn.2 {
+    SELECT * FROM t2( $step * 5 )
+  } {}
+}
+
+
+
+finish_test
diff --git a/ext/fts5/test/fts5contentless3.test b/ext/fts5/test/fts5contentless3.test
new file mode 100644
index 0000000000000000000000000000000000000000..693840da82e7e541d34e8156cc6f2be92b5ec5fe
--- /dev/null
+++ b/ext/fts5/test/fts5contentless3.test
@@ -0,0 +1,195 @@
+# 2023 July 21
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains tests for the content= and content_rowid= options.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5contentless3
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE ft USING fts5(x, content=, contentless_delete=1);
+  BEGIN;
+    INSERT INTO ft VALUES('one one one');
+    INSERT INTO ft VALUES('two two two');
+    INSERT INTO ft VALUES('three three three');
+    INSERT INTO ft VALUES('four four four');
+    INSERT INTO ft VALUES('five five five');
+    INSERT INTO ft VALUES('six six six');
+    INSERT INTO ft VALUES('seven seven seven');
+    INSERT INTO ft VALUES('eight eight eight');
+    INSERT INTO ft VALUES('nine nine nine');
+  COMMIT;
+
+  DELETE FROM ft WHERE rowid=3;
+}
+
+proc myhex {hex} { binary decode hex $hex }
+db func myhex myhex
+
+do_execsql_test 1.1 {
+  UPDATE ft_data SET block = 
+    myhex('04000000 00000001'                   ||
+          '01020304 01020304 01020304 01020304' ||
+          '01020304 01020304 01020304 01020304'
+    )
+  WHERE id = (SELECT max(id) FROM ft_data);
+}
+
+do_execsql_test 1.2 {
+  DELETE FROM ft WHERE rowid=1
+}
+
+do_execsql_test 1.3 {
+  SELECT rowid FROM ft('two');
+} {2}
+
+do_execsql_test 1.3 {
+  UPDATE ft_data SET block = 
+    myhex('08000000 00000001'                                               ||
+      '0000000001020304 0000000001020304 0000000001020304 0000000001020304' ||
+      '0000000001020304 0000000001020304 0000000001020304 0000000001020304'
+    )
+  WHERE id = (SELECT max(id) FROM ft_data);
+}
+
+do_execsql_test 1.4 {
+  SELECT rowid FROM ft('two');
+} {2}
+
+do_execsql_test 1.5 {
+  DELETE FROM ft WHERE rowid=4
+}
+
+do_execsql_test 1.6 {
+  UPDATE ft_data SET block = myhex('04000000 00000000')
+    WHERE id = (SELECT max(id) FROM ft_data);
+}
+do_execsql_test 1.7 {
+  SELECT rowid FROM ft('two');
+} {2}
+
+do_execsql_test 1.8 {
+  UPDATE ft_data SET block = myhex('04000000 00000000')
+    WHERE id = (SELECT max(id) FROM ft_data);
+}
+do_execsql_test 1.9 {
+  DELETE FROM ft WHERE rowid=8
+} {}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE ft USING fts5(x, content=, contentless_delete=1);
+  INSERT INTO ft VALUES('one one one');
+  INSERT INTO ft VALUES('two two two');
+  INSERT INTO ft VALUES('three three three');
+  INSERT INTO ft VALUES('four four four');
+  INSERT INTO ft VALUES('five five five');
+  INSERT INTO ft VALUES('six six six');
+  INSERT INTO ft VALUES('seven seven seven');
+  INSERT INTO ft VALUES('eight eight eight');
+  INSERT INTO ft VALUES('nine nine nine');
+}
+
+do_execsql_test 2.1 {
+  INSERT INTO ft(ft) VALUES('optimize');
+}
+do_execsql_test 2.2 {
+  SELECT count(*) FROM ft_data
+} {3}
+do_execsql_test 2.3 {
+  DELETE FROM ft WHERE rowid=5
+}
+do_execsql_test 2.4 {
+  SELECT count(*) FROM ft_data
+} {4}
+
+# Check that an 'optimize' works (rewrites the index) if there is a single
+# segment with one or more tombstone hash pages.
+do_execsql_test 2.5 {
+  INSERT INTO ft(ft) VALUES('optimize');
+}
+do_execsql_test 2.6 {
+  SELECT count(*) FROM ft_data
+} {3}
+
+# Check that an 'optimize' is a no-op if there is a single segment
+# and no tombstone hash pages.
+do_execsql_test 2.7 {
+  INSERT INTO ft(ft) VALUES('optimize');
+  SELECT rowid FROM ft_data;
+} [db eval {SELECT rowid FROM ft_data}]
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE ft USING fts5(x, content=, contentless_delete=1);
+  INSERT INTO ft(ft, rank) VALUES('pgsz', 64);
+  WITH s(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<1000
+  )
+  INSERT INTO ft(rowid, x) SELECT i, i||' '||i||' '||i||' '||i FROM s;
+  INSERT INTO ft(ft) VALUES('optimize');
+}
+
+do_execsql_test 3.1 {
+  SELECT count(*) FROM ft_data
+} {200}
+
+do_execsql_test 3.2 {
+  DELETE FROM ft WHERE (rowid % 50)==0;
+  SELECT count(*) FROM ft_data;
+} {203}
+
+do_execsql_test 3.3 {
+  INSERT INTO ft(ft, rank) VALUES('merge', 500);
+  SELECT rowid FROM ft_data;
+} [db eval {SELECT rowid FROM ft_data}]
+
+do_execsql_test 3.4 {
+  INSERT INTO ft(ft, rank) VALUES('merge', -1000);
+  SELECT count(*) FROM ft_data;
+} {197}
+
+do_execsql_test 3.5 {
+  DELETE FROM ft WHERE (rowid % 50)==1;
+  SELECT count(*) FROM ft_data;
+} {200}
+
+do_execsql_test 3.6 {
+  SELECT level, segment, npgtombstone FROM fts5_structure(
+    (SELECT block FROM ft_data WHERE id=10)
+  )
+} {1 0 3}
+
+do_test 3.6 {
+  while 1 {
+    set nChange [db total_changes]
+    execsql { INSERT INTO ft(ft, rank) VALUES('merge', -5) }
+    if {([db total_changes] - $nChange)<2} break
+  }
+} {}
+
+do_execsql_test 3.7 {
+  SELECT level, segment, npgtombstone FROM fts5_structure(
+    (SELECT block FROM ft_data WHERE id=10)
+  )
+} {2 0 0}
+
+
+finish_test
diff --git a/ext/fts5/test/fts5contentless4.test b/ext/fts5/test/fts5contentless4.test
new file mode 100644
index 0000000000000000000000000000000000000000..7fdf8c4b013045ce7e85d2279cac0bf2751e9dcb
--- /dev/null
+++ b/ext/fts5/test/fts5contentless4.test
@@ -0,0 +1,247 @@
+# 2023 July 21
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains tests for the content= and content_rowid= options.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5contentless4
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+proc document {n} {
+  set vocab [list A B C D E F G H I J K L M N O P Q R S T U V W X Y Z]
+  set ret [list]
+  for {set ii 0} {$ii < $n} {incr ii} {
+    lappend ret [lindex $vocab [expr int(rand()*[llength $vocab])]]
+  }
+  set ret
+}
+db func document document
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE ft USING fts5(x, content='', contentless_delete=1);
+  INSERT INTO ft(ft, rank) VALUES('pgsz', 240);
+  WITH s(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<1000
+  )
+  INSERT INTO ft SELECT document(12) FROM s;
+}
+
+do_execsql_test 1.1 {
+  INSERT INTO ft(ft) VALUES('optimize');
+}
+
+do_execsql_test 1.2 {
+  SELECT level, segment, nentry, nentrytombstone FROM fts5_structure((
+    SELECT block FROM ft_data WHERE id=10
+  ))
+} {0 0 1000 0}
+
+do_execsql_test 1.3 {
+  DELETE FROM ft WHERE rowid < 50
+}
+
+do_execsql_test 1.4 {
+  SELECT level, segment, nentry, nentrytombstone FROM fts5_structure((
+    SELECT block FROM ft_data WHERE id=10
+  ))
+} {0 0 1000 49}
+
+do_execsql_test 1.5 {
+  DELETE FROM ft WHERE rowid < 1000
+}
+
+do_execsql_test 1.6 {
+  SELECT level, segment, nentry, nentrytombstone FROM fts5_structure((
+    SELECT block FROM ft_data WHERE id=10
+  ))
+} {1 0 1 0}
+
+#--------------------------------------------------------------------------
+reset_db
+db func document document
+
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE ft USING fts5(x, content='', contentless_delete=1);
+}
+
+do_test 2.1 {
+  for {set ii 0} {$ii < 5000} {incr ii} {
+    execsql { INSERT INTO ft VALUES( document(12) ) }
+  }
+} {}
+
+do_execsql_test 2.2 {
+  SELECT sum(nentry) - sum(nentrytombstone) FROM fts5_structure((
+    SELECT block FROM ft_data WHERE id=10
+  ))
+} {5000}
+
+for {set ii 5000} {$ii >= 0} {incr ii -100} {
+  do_execsql_test 2.3.$ii {
+    DELETE FROM ft WHERE rowid > $ii
+  }
+  do_execsql_test 2.3.$ii.2 {
+    SELECT 
+      CAST((total(nentry) - total(nentrytombstone)) AS integer) 
+    FROM 
+      fts5_structure( (SELECT block FROM ft_data WHERE id=10) )
+  } $ii
+}
+
+execsql_pp {
+  SELECT * FROM fts5_structure((
+    SELECT block FROM ft_data WHERE id=10
+  ))
+}
+
+do_test 2.4 {
+  for {set ii 0} {$ii < 5000} {incr ii} {
+    execsql { INSERT INTO ft VALUES( document(12) ) }
+  }
+} {}
+
+for {set ii 1} {$ii <= 5000} {incr ii 10} {
+  do_execsql_test 2.3.$ii {
+    DELETE FROM ft WHERE rowid = $ii;
+    INSERT INTO ft VALUES( document(12) );
+    INSERT INTO ft(ft, rank) VALUES('merge', -10);
+  }
+
+  do_execsql_test 2.3.$ii.2 {
+    SELECT 
+      CAST((total(nentry) - total(nentrytombstone)) AS integer) 
+    FROM 
+      fts5_structure( (SELECT block FROM ft_data WHERE id=10) )
+  } 5000
+}
+
+#-------------------------------------------------------------------------
+reset_db
+db func document document
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE ft USING fts5(x, content='', contentless_delete=1);
+  WITH s(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<100
+  )
+  INSERT INTO ft SELECT document(12) FROM s;
+}
+
+do_catchsql_test 3.1 {
+  INSERT INTO ft(ft, rank) VALUES('deletemerge', 'text');
+} {1 {SQL logic error}}
+do_catchsql_test 3.2 {
+  INSERT INTO ft(ft, rank) VALUES('deletemerge', 50);
+} {0 {}}
+do_execsql_test 3.3 {
+  SELECT * FROM ft_config WHERE k='deletemerge'
+} {deletemerge 50}
+do_catchsql_test 3.4 {
+  INSERT INTO ft(ft, rank) VALUES('deletemerge', 101);
+} {0 {}}
+do_execsql_test 3.5 {
+  SELECT * FROM ft_config WHERE k='deletemerge'
+} {deletemerge 101}
+
+do_execsql_test 3.6 {
+  DELETE FROM ft WHERE rowid<95
+}
+
+do_execsql_test 3.7 {
+  SELECT nentrytombstone, nentry FROM fts5_structure((
+    SELECT block FROM ft_data WHERE id=10
+  ))
+} {94 100}
+
+do_execsql_test 3.8 {
+  DELETE FROM ft WHERE rowid=95
+}
+
+do_execsql_test 3.9 {
+  SELECT nentrytombstone, nentry FROM fts5_structure((
+    SELECT block FROM ft_data WHERE id=10
+  ))
+} {95 100}
+
+do_execsql_test 3.10 {
+  DELETE FROM ft;
+  WITH s(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<100
+  )
+  INSERT INTO ft SELECT document(12) FROM s;
+  INSERT INTO ft(ft, rank) VALUES('deletemerge', 50);
+}
+
+do_execsql_test 3.11 {
+  DELETE FROM ft WHERE rowid<95
+}
+
+do_execsql_test 3.12 {
+  SELECT nentrytombstone, nentry FROM fts5_structure((
+    SELECT block FROM ft_data WHERE id=10
+  ))
+} {0 6}
+
+#-------------------------------------------------------------------------
+reset_db
+db func document document
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE x1 USING fts5(x, content='', contentless_delete=1);
+  INSERT INTO x1(x1, rank) VALUES('usermerge', 16);
+  INSERT INTO x1(x1, rank) VALUES('deletemerge', 40);
+  INSERT INTO x1 VALUES('one');
+  INSERT INTO x1 VALUES('two');
+  INSERT INTO x1 VALUES('three');
+  INSERT INTO x1 VALUES('four');
+  INSERT INTO x1 VALUES('five');
+  INSERT INTO x1 VALUES('six');
+  INSERT INTO x1 VALUES('seven');
+  INSERT INTO x1 VALUES('eight');
+  INSERT INTO x1 VALUES('nine');
+  INSERT INTO x1 VALUES('ten');
+}
+
+do_execsql_test 4.1 {
+  SELECT level, segment FROM fts5_structure((
+    SELECT block FROM x1_data WHERE id=10
+  ))
+} {
+  0 0 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9
+}
+
+for {set ii 1} {$ii < 4} {incr ii} {
+  do_execsql_test 4.2.$ii {
+    DELETE FROM x1 WHERE rowid = $ii;
+    INSERT INTO x1(x1, rank) VALUES('merge', 5);
+    SELECT level, segment FROM fts5_structure((
+          SELECT block FROM x1_data WHERE id=10
+    ))
+  } {
+    0 0 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9
+  }
+}
+
+do_execsql_test 4.3 {
+  DELETE FROM x1 WHERE rowid = $ii;
+  INSERT INTO x1(x1, rank) VALUES('merge', 5);
+  SELECT level, segment, nentry FROM fts5_structure((
+        SELECT block FROM x1_data WHERE id=10
+  ))
+} {
+  1 0   6
+}
+
+finish_test
diff --git a/ext/fts5/test/fts5contentless5.test b/ext/fts5/test/fts5contentless5.test
new file mode 100644
index 0000000000000000000000000000000000000000..86d075328624f1db2b52a93310eac5418181a96a
--- /dev/null
+++ b/ext/fts5/test/fts5contentless5.test
@@ -0,0 +1,111 @@
+# 2023 August 7
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains tests for the content= and content_rowid= options.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5contentless5
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+unset -nocomplain res
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, b, c, content='', contentless_delete=1);
+  INSERT INTO t1 VALUES('A', 'B', 'C');
+  INSERT INTO t1 VALUES('D', 'E', 'F');
+  INSERT INTO t1 VALUES('G', 'H', 'I');
+}
+
+do_execsql_test 1.01 {
+  CREATE TABLE t2(x, y);
+  INSERT INTO t2 VALUES('x', 'y');
+}
+
+# explain_i "UPDATE t1 SET a='a' WHERE t1.rowid=1"    
+#breakpoint
+#explain_i "UPDATE t1 SET a='a' FROM t2 WHERE t1.rowid=1 AND b IS NULL"     
+
+#breakpoint
+#explain_i "UPDATE t1 SET a='a' WHERE b IS NULL AND rowid=?"
+
+foreach {tn up err} {
+  1   "UPDATE t1 SET a='a', b='b', c='c' WHERE rowid=1"                  0
+  2   "UPDATE t1 SET a='a', b='b'        WHERE rowid=1"                  1
+  3   "UPDATE t1 SET        b='b', c='c' WHERE rowid=1"                  1
+  4   "UPDATE t1 SET a='a',        c='c' WHERE rowid=1"                  1
+  5   "UPDATE t1 SET a='a',        c='c' WHERE t1.rowid=1 AND b IS NULL" 1
+  6   "UPDATE t1 SET a='a' FROM t2 WHERE t1.rowid=1"                     1
+  7   "UPDATE t1 SET a='a', b='b', c='c' FROM t2 WHERE t1.rowid=1"       0
+} {
+
+  set res(0) {0 {}}
+  set res(1) {1 {cannot UPDATE a subset of columns on fts5 contentless-delete table: t1}}
+  do_catchsql_test 1.$tn $up $res($err)
+}
+
+#-------------------------------------------------------------------------
+reset_db
+
+proc random {n} { expr {abs(int(rand()*$n))} }
+proc select_one {list} {
+  set n [llength $list]
+  lindex $list [random $n]
+}
+proc vocab {} {
+  list abc def ghi jkl mno pqr stu vwx yza
+}
+proc term {} {
+  select_one [vocab]
+}
+proc document {} {
+  set nTerm [expr [random 3] + 7]
+  set doc ""
+  for {set ii 0} {$ii < $nTerm} {incr ii} {
+    lappend doc [term]
+  }
+  set doc
+}
+db func document document
+
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE ft USING fts5(a, contentless_delete=1, content='');
+  INSERT INTO ft(ft, rank) VALUES('pgsz', 64);
+}
+
+do_test 2.1 {
+  for {set ii 1} {$ii < 12} {incr ii} {
+    db transaction {
+      for {set jj 0} {$jj < 10} {incr jj} {
+        set doc [document]
+        execsql { INSERT INTO ft VALUES($doc); }
+      }
+    }
+  }
+} {}
+
+do_test 2.2 {
+  foreach r [db eval {SELECT rowid FROM ft}] {
+    execsql { DELETE FROM ft WHERE rowid=$r }
+  }
+} {}
+
+set doc [document]
+do_execsql_test 2.3 {
+  INSERT INTO ft VALUES($doc)
+}
+
+
+finish_test
diff --git a/ext/fts5/test/fts5corrupt.test b/ext/fts5/test/fts5corrupt.test
new file mode 100644
index 0000000000000000000000000000000000000000..0abd8b86de09264c4e62d569abe8c6a389b38dc3
--- /dev/null
+++ b/ext/fts5/test/fts5corrupt.test
@@ -0,0 +1,125 @@
+# 2014 Dec 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file tests that the FTS5 'integrity-check' command detects 
+# inconsistencies (corruption) in the on-disk backing tables.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5corrupt
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x);
+  INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
+}
+
+do_test 1.1 {
+  db transaction {
+    for {set i 1} {$i < 200} {incr i} {
+      set doc [list [string repeat x $i] [string repeat y $i]]
+      execsql { INSERT INTO t1(rowid, x) VALUES($i, $doc) }
+    }
+  }
+  fts5_level_segs t1
+} {1}
+db_save
+
+do_execsql_test 1.2 { INSERT INTO t1(t1) VALUES('integrity-check') }
+set segid [lindex [fts5_level_segids t1] 0]
+
+sqlite3_db_config db DEFENSIVE 0
+do_test 1.3 {
+  execsql {
+    DELETE FROM t1_data WHERE rowid = fts5_rowid('segment', $segid, 4);
+  }
+  catchsql { INSERT INTO t1(t1) VALUES('integrity-check') }
+} {1 {database disk image is malformed}}
+do_execsql_test 1.3b {
+  PRAGMA integrity_check(t1);
+} {{malformed inverted index for FTS5 table main.t1}}
+
+
+do_test 1.4 {
+  db_restore_and_reopen
+  sqlite3_db_config db DEFENSIVE 0
+  execsql {
+    UPDATE t1_data set block = X'00000000' || substr(block, 5) WHERE
+    rowid = fts5_rowid('segment', $segid, 4);
+  }
+  catchsql { INSERT INTO t1(t1) VALUES('integrity-check') }
+} {1 {database disk image is malformed}}
+
+db_restore_and_reopen
+#db eval {SELECT rowid, fts5_decode(rowid, block) aS r FROM t1_data} {puts $r}
+
+
+#--------------------------------------------------------------------
+#
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE t2 USING fts5(x);
+  INSERT INTO t2(t2, rank) VALUES('pgsz', 64);
+}
+db func rnddoc fts5_rnddoc
+do_test 2.1 {
+  for {set i 0} {$i < 500} {incr i} {
+    execsql { INSERT INTO t2 VALUES(rnddoc(50)) }
+  }
+  execsql { INSERT INTO t2(t2) VALUES('integrity-check') }
+} {}
+
+#--------------------------------------------------------------------
+# A mundane test - missing row in the %_content table.
+#
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE t3 USING fts5(x);
+  INSERT INTO t3 VALUES('one o');
+  INSERT INTO t3 VALUES('two e');
+  INSERT INTO t3 VALUES('three o');
+  INSERT INTO t3 VALUES('four e');
+  INSERT INTO t3 VALUES('five o');
+}
+do_execsql_test 3.1 {
+  SELECT * FROM t3 WHERE t3 MATCH 'o'
+} {{one o} {three o} {five o}}
+sqlite3_db_config db DEFENSIVE 0
+do_catchsql_test 3.1 {
+  DELETE FROM t3_content WHERE rowid = 3;
+  SELECT * FROM t3 WHERE t3 MATCH 'o';
+} {1 {fts5: missing row 3 from content table 'main'.'t3_content'}}
+
+#--------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE t2 USING fts5(x);
+  INSERT INTO t2 VALUES('one two three');
+  INSERT INTO t2 VALUES('four five six');
+  INSERT INTO t2 VALUES('seven eight nine');
+  INSERT INTO t2 VALUES('ten eleven twelve');
+}
+do_execsql_test 4.1 {
+  SELECT hex(block) FROM t2_data WHERE id=1;
+} {040C}
+do_execsql_test 4.2 {
+  UPDATE t2_data SET block = X'0402' WHERE id=1
+}
+breakpoint
+do_catchsql_test 4.3 {
+  DELETE FROM t2 WHERE rowid=3
+} {1 {database disk image is malformed}}
+
+finish_test
diff --git a/ext/fts5/test/fts5corrupt2.test b/ext/fts5/test/fts5corrupt2.test
new file mode 100644
index 0000000000000000000000000000000000000000..6b4d6d411f8f82087d4973919701710c8cdbb480
--- /dev/null
+++ b/ext/fts5/test/fts5corrupt2.test
@@ -0,0 +1,277 @@
+# 2015 Apr 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file tests that FTS5 handles corrupt databases (i.e. internal
+# inconsistencies in the backing tables) correctly. In this case 
+# "correctly" means without crashing.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5corrupt2
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+sqlite3_fts5_may_be_corrupt 1
+
+# Create a simple FTS5 table containing 100 documents. Each document 
+# contains 10 terms, each of which start with the character "x".
+#
+expr srand(0)
+db func rnddoc fts5_rnddoc
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x);
+  INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
+  WITH ii(i) AS (SELECT 1 UNION SELECT i+1 FROM ii WHERE i<100)
+  INSERT INTO t1 SELECT rnddoc(10) FROM ii;
+}
+set mask [expr 31 << 31]
+
+if 0 {
+
+# Test 1:
+#
+#   For each page in the t1_data table, open a transaction and DELETE
+#   the t1_data entry. Then run:
+#
+#     * an integrity-check, and
+#     * unless the deleted block was a b-tree node, a query for "t1 MATCH 'x*'"
+#
+#   and check that the corruption is detected in both cases. The 
+#   rollback the transaction.
+#
+# Test 2:
+#
+#   Same thing, except instead of deleting a row from t1_data, replace its
+#   blob content with integer value 14.
+#
+foreach {tno stmt} {
+  1 { DELETE FROM t1_data WHERE rowid=$rowid }
+  2 { UPDATE t1_data SET block=14 WHERE rowid=$rowid }
+} {
+  set tn 0
+  foreach rowid [db eval {SELECT rowid FROM t1_data WHERE rowid>10}] {
+    incr tn
+    #if {$tn!=224} continue
+  
+    do_test 1.$tno.$tn.1.$rowid {
+      execsql { BEGIN }
+      execsql $stmt
+      catchsql { INSERT INTO t1(t1) VALUES('integrity-check') }
+    } {1 {database disk image is malformed}}
+  
+    if {($rowid & $mask)==0} {
+      # Node is a leaf node, not a b-tree node.
+      do_catchsql_test 1.$tno.$tn.2.$rowid {
+        SELECT rowid FROM t1 WHERE t1 MATCH 'x*'
+      } {1 {database disk image is malformed}}
+    }
+  
+    do_execsql_test 1.$tno.$tn.3.$rowid {
+      ROLLBACK;
+      INSERT INTO t1(t1) VALUES('integrity-check');
+    } {}
+  }
+}
+
+}
+
+# Using the same database as the 1.* tests.
+#
+# Run N-1 tests, where N is the number of bytes in the rightmost leaf page
+# of the fts index. For test $i, truncate the rightmost leafpage to $i
+# bytes. Then test both the integrity-check detects the corruption.
+#
+# Also tested is that "MATCH 'x*'" does not crash and sometimes reports
+# corruption. It may not report the db as corrupt because truncating the
+# final leaf to some sizes may create a valid leaf page.
+#
+set lrowid [db one {SELECT max(rowid) FROM t1_data WHERE (rowid & $mask)=0}] 
+set nbyte [db one {SELECT length(block) FROM t1_data WHERE rowid=$lrowid}]
+set all [db eval {SELECT rowid FROM t1}]
+sqlite3_db_config db DEFENSIVE 0
+unset -nocomplain res
+for {set i [expr $nbyte-2]} {$i>=0} {incr i -1} {
+  do_execsql_test 2.$i.1 {
+    BEGIN;
+      UPDATE t1_data SET block = substr(block, 1, $i) WHERE rowid=$lrowid;
+  }
+
+  do_catchsql_test 2.$i.2 {
+    INSERT INTO t1(t1) VALUES('integrity-check');
+  } {1 {database disk image is malformed}}
+
+  do_test 2.$i.3 {
+    set res [catchsql {SELECT rowid FROM t1 WHERE t1 MATCH 'x*'}]
+    expr {
+        $res=="1 {database disk image is malformed}" 
+     || $res=="0 {$all}" 
+    }
+  } 1
+
+  do_execsql_test 2.$i.4 {
+    ROLLBACK;
+    INSERT INTO t1(t1) VALUES('integrity-check');
+  } {}
+}
+
+#-------------------------------------------------------------------------
+# Test that corruption in leaf page headers is detected by queries that use
+# doclist-indexes.
+#
+set doc "A B C D E F G H I J "
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE x3 USING fts5(tt);
+  INSERT INTO x3(x3, rank) VALUES('pgsz', 32);
+  WITH ii(i) AS (SELECT 1 UNION ALL SELECT i+1 FROM ii WHERE i<1000) 
+  INSERT INTO x3 
+  SELECT ($doc || CASE WHEN (i%50)==0 THEN 'X' ELSE 'Y' END) FROM ii;
+}
+
+foreach {tn hdr} {
+  1 "\x00\x00\x00\x00"
+  2 "\xFF\xFF\xFF\xFF"
+  3 "\x44\x45"
+} {
+  set tn2 0
+  set nCorrupt 0
+  set nCorrupt2 0
+  foreach rowid [db eval {SELECT rowid FROM x3_data WHERE rowid>10}] {
+    if {$rowid & $mask} continue
+    incr tn2
+    do_test 3.$tn.$tn2.1 {
+      execsql BEGIN
+
+      set fd [db incrblob main x3_data block $rowid]
+      fconfigure $fd -translation binary
+      set existing [read $fd [string length $hdr]]
+      seek $fd 0
+      puts -nonewline $fd $hdr
+      close $fd
+
+      set res [catchsql {SELECT rowid FROM x3 WHERE x3 MATCH 'x AND a'}]
+      if {$res == "1 {database disk image is malformed}"} {incr nCorrupt}
+      set {} 1
+    } {1}
+
+    if {($tn2 % 10)==0 && $existing != $hdr} {
+      do_test 3.$tn.$tn2.2 {
+        catchsql { INSERT INTO x3(x3) VALUES('integrity-check') }
+      } {1 {database disk image is malformed}}
+      do_execsql_test 3.$tn.$tn2.3 {
+        PRAGMA integrity_check(x3);
+      } {{malformed inverted index for FTS5 table main.x3}}
+    }
+
+    execsql ROLLBACK
+  }
+
+  do_test 3.$tn.x { expr $nCorrupt>0 } 1
+}
+
+#--------------------------------------------------------------------
+#
+set doc "A B C D E F G H I J "
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE x4 USING fts5(tt);
+  INSERT INTO x4(x4, rank) VALUES('pgsz', 32);
+  WITH ii(i) AS (SELECT 1 UNION ALL SELECT i+1 FROM ii WHERE i<10) 
+  INSERT INTO x4 
+  SELECT ($doc || CASE WHEN (i%50)==0 THEN 'X' ELSE 'Y' END) FROM ii;
+}
+
+foreach {tn nCut} {
+  1 1
+  2 10
+} {
+  set tn2 0
+  set nCorrupt 0
+  foreach rowid [db eval {SELECT rowid FROM x4_data WHERE rowid>10}] {
+    if {$rowid & $mask} continue
+    incr tn2
+    do_test 4.$tn.$tn2 {
+      execsql {
+        BEGIN;
+          UPDATE x4_data SET block = substr(block, 1, length(block)-$nCut) 
+          WHERE id = $rowid;
+      }
+
+      set res [catchsql {
+        SELECT rowid FROM x4 WHERE x4 MATCH 'a' ORDER BY 1 DESC
+      }]
+      if {$res == "1 {database disk image is malformed}"} {incr nCorrupt}
+      set {} 1
+    } {1}
+
+    execsql ROLLBACK
+  }
+
+  # do_test 4.$tn.x { expr $nCorrupt>0 } 1
+}
+
+set doc [string repeat "A B C " 1000]
+do_execsql_test 5.0 {
+  CREATE VIRTUAL TABLE x5 USING fts5(tt);
+  INSERT INTO x5(x5, rank) VALUES('pgsz', 32);
+  WITH ii(i) AS (SELECT 1 UNION ALL SELECT i+1 FROM ii WHERE i<10) 
+  INSERT INTO x5 SELECT $doc FROM ii;
+}
+
+foreach {tn hdr} {
+  1 "\x00\x01"
+} {
+  set tn2 0
+  set nCorrupt 0
+  foreach rowid [db eval {SELECT rowid FROM x5_data WHERE rowid>10}] {
+    if {$rowid & $mask} continue
+    incr tn2
+    do_test 5.$tn.$tn2 {
+      execsql BEGIN
+
+      set fd [db incrblob main x5_data block $rowid]
+      fconfigure $fd -translation binary
+      puts -nonewline $fd $hdr
+      close $fd
+
+      catchsql { INSERT INTO x5(x5) VALUES('integrity-check') }
+      set {} {}
+    } {}
+
+    execsql ROLLBACK
+  }
+}
+
+#--------------------------------------------------------------------
+reset_db
+sqlite3_db_config db DEFENSIVE 0
+do_execsql_test 6.1 {
+  CREATE VIRTUAL TABLE x5 USING fts5(tt);
+  INSERT INTO x5 VALUES('a');
+  INSERT INTO x5 VALUES('a a');
+  INSERT INTO x5 VALUES('a a a');
+  INSERT INTO x5 VALUES('a a a a');
+
+  UPDATE x5_docsize SET sz = X'' WHERE id=3;
+}
+proc colsize {cmd i} { 
+  $cmd xColumnSize $i
+}
+sqlite3_fts5_create_function db colsize colsize
+
+do_catchsql_test 6.2 {
+  SELECT colsize(x5, 0) FROM x5 WHERE x5 MATCH 'a'
+} {1 SQLITE_CORRUPT_VTAB}
+
+
+sqlite3_fts5_may_be_corrupt 0
+finish_test
diff --git a/ext/fts5/test/fts5corrupt3.test b/ext/fts5/test/fts5corrupt3.test
new file mode 100644
index 0000000000000000000000000000000000000000..3e8b0377cc74c1cd77844b5cf3c02265c6cacd8a
--- /dev/null
+++ b/ext/fts5/test/fts5corrupt3.test
@@ -0,0 +1,15684 @@
+# 2015 Apr 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file tests that FTS5 handles corrupt databases (i.e. internal
+# inconsistencies in the backing tables) correctly. In this case 
+# "correctly" means without crashing.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5corrupt3
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+sqlite3_fts5_may_be_corrupt 1
+database_may_be_corrupt
+
+proc create_t1 {} {
+  expr srand(0)
+  db func rnddoc fts5_rnddoc
+  db eval {
+    CREATE VIRTUAL TABLE t1 USING fts5(x);
+    INSERT INTO t1(t1, rank) VALUES('pgsz', 64);
+    WITH ii(i) AS (SELECT 1 UNION SELECT i+1 FROM ii WHERE i<100)
+      INSERT INTO t1 SELECT rnddoc(10) FROM ii;
+  }
+}
+
+# Create a simple FTS5 table containing 100 documents. Each document 
+# contains 10 terms, each of which start with the character "x".
+#
+do_test 1.0 { create_t1 } {}
+
+do_test 1.1 {
+  # Pick out the rowid of the right-most b-tree leaf in the new segment.
+  set rowid [db one {
+    SELECT max(rowid) FROM t1_data WHERE ((rowid>>31) & 0x0F)==1
+  }]
+  set L [db one {SELECT length(block) FROM t1_data WHERE rowid = $rowid}]
+  set {} {}
+} {} 
+
+sqlite3_db_config db DEFENSIVE 0
+for {set i 0} {$i < $L} {incr i} {
+  do_test 1.2.$i {
+    catchsql {
+      BEGIN;
+      UPDATE t1_data SET block = substr(block, 1, $i) WHERE id = $rowid;
+      INSERT INTO t1(t1) VALUES('integrity-check');
+    }
+  } {1 {database disk image is malformed}}
+  catchsql ROLLBACK
+}
+ 
+#-------------------------------------------------------------------------
+# Test that trailing bytes appended to the averages record are ignored.
+#
+do_execsql_test 2.1 {
+  CREATE VIRTUAL TABLE t2 USING fts5(x);
+  INSERT INTO t2 VALUES(rnddoc(10));
+  INSERT INTO t2 VALUES(rnddoc(10));
+  SELECT length(block) FROM t2_data WHERE id=1;
+} {2}
+do_execsql_test 2.2 {
+  UPDATE t2_data SET block = block || 'abcd' WHERE id=1;
+  SELECT length(block) FROM t2_data WHERE id=1;
+} {6}
+do_execsql_test 2.2 {
+  INSERT INTO t2 VALUES(rnddoc(10));
+  SELECT length(block) FROM t2_data WHERE id=1;
+} {2}
+
+
+#-------------------------------------------------------------------------
+# Test that missing leaf pages are recognized as corruption.
+#
+reset_db
+do_test 3.0 { create_t1 } {}
+sqlite3_db_config db DEFENSIVE 0
+
+do_execsql_test 3.1 {
+  SELECT count(*) FROM t1_data;
+} {105}
+
+proc do_3_test {tn} {
+  set i 0
+  foreach ::rowid [db eval "SELECT rowid FROM t1_data WHERE rowid>100"] {
+    incr i
+    do_test $tn.$i {
+      db eval BEGIN
+      db eval {DELETE FROM t1_data WHERE rowid = $::rowid}
+      list [
+        catch { db eval {SELECT rowid FROM t1 WHERE t1 MATCH 'x*'} } msg
+      ] $msg
+    } {1 {database disk image is malformed}}
+    catch { db eval ROLLBACK }
+  }
+}
+
+do_3_test 3.2
+
+do_execsql_test 3.3 {
+  INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
+  INSERT INTO t1 SELECT x FROM t1;
+  INSERT INTO t1(t1) VALUES('optimize');
+} {}
+
+do_3_test 3.4
+
+do_test 3.5 {
+  execsql { 
+    DELETE FROM t1;
+    INSERT INTO t1(t1, rank) VALUES('pgsz', 40);
+  }
+  for {set i 0} {$i < 1000} {incr i} {
+    set rnd [expr int(rand() * 1000)]
+    set doc [string repeat "x$rnd " [expr int(rand() * 3) + 1]]
+    execsql { INSERT INTO t1(rowid, x) VALUES($i, $doc) }
+  }
+} {}
+
+do_3_test 3.6
+
+do_test 3.7 {
+  execsql {
+    INSERT INTO t1(t1, rank) VALUES('pgsz', 40);
+    INSERT INTO t1 SELECT x FROM t1;
+    INSERT INTO t1(t1) VALUES('optimize');
+  }
+} {}
+
+do_3_test 3.8
+
+do_test 3.9 {
+  execsql { 
+    DELETE FROM t1;
+    INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
+  }
+  for {set i 0} {$i < 100} {incr i} {
+    set rnd [expr int(rand() * 100)]
+    set doc "x[string repeat $rnd 20]"
+    execsql { INSERT INTO t1(rowid, x) VALUES($i, $doc) }
+  }
+} {}
+
+do_3_test 3.10
+
+#-------------------------------------------------------------------------
+# Test that segments that end unexpectedly are identified as corruption.
+#
+reset_db
+sqlite3_db_config db DEFENSIVE 0
+do_test 4.0 {
+  execsql { 
+    CREATE VIRTUAL TABLE t1 USING fts5(x);
+    INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
+  }
+  for {set i 0} {$i < 100} {incr i} {
+    set rnd [expr int(rand() * 100)]
+    set doc "x[string repeat $rnd 20]"
+    execsql { INSERT INTO t1(rowid, x) VALUES($i, $doc) }
+  }
+  execsql { INSERT INTO t1(t1) VALUES('optimize') }
+} {}
+
+set nErr 0
+for {set i 1} {1} {incr i} {
+  set struct [db one {SELECT block FROM t1_data WHERE id=10}]
+  binary scan $struct c* var
+  set end [lindex $var end]
+  if {$end<=$i} break
+  lset var end [expr $end - $i]
+  set struct [binary format c* $var]
+
+  db close
+  sqlite3 db test.db
+  sqlite3_db_config db DEFENSIVE 0
+
+  db eval {
+    BEGIN;
+    UPDATE t1_data SET block = $struct WHERE id=10;
+  }
+  do_test 4.1.$i {
+    incr nErr [catch { db eval { SELECT rowid FROM t1 WHERE t1 MATCH 'x*' } }]
+    set {} {}
+  } {}
+  catch { db eval ROLLBACK }
+}
+do_test 4.1.x { expr $nErr>45 } 1
+
+#-------------------------------------------------------------------------
+#
+
+# The first argument passed to this command must be a binary blob 
+# containing an FTS5 leaf page. This command returns a copy of this
+# blob, with the pgidx of the leaf page replaced by a single varint
+# containing value $iVal.
+#
+proc rewrite_pgidx {blob iVal} {
+  binary scan $blob SS off1 szLeaf
+  if {$iVal<0 || $iVal>=128} {
+    error "$iVal out of range!"
+  } else {
+    set pgidx [binary format c $iVal]
+  }
+
+  binary format a${szLeaf}a* $blob $pgidx
+}
+
+reset_db
+do_execsql_test 5.1 {
+  CREATE VIRTUAL TABLE x1 USING fts5(x);
+  INSERT INTO x1(x1, rank) VALUES('pgsz', 40);
+  BEGIN;
+  INSERT INTO x1 VALUES('xaaa xabb xccc xcdd xeee xeff xggg xghh xiii xijj');
+  INSERT INTO x1 SELECT x FROM x1;
+  INSERT INTO x1 SELECT x FROM x1;
+  INSERT INTO x1 SELECT x FROM x1;
+  INSERT INTO x1 SELECT x FROM x1;
+  INSERT INTO x1(x1) VALUES('optimize');
+  COMMIT;
+}
+
+#db eval { SELECT fts5_decode(id, block) b from x1_data } { puts $b }
+#
+db func rewrite_pgidx rewrite_pgidx  
+set i 0
+foreach rowid [db eval {SELECT rowid FROM x1_data WHERE rowid>100}] {
+  foreach val {2 100} {
+    do_test 5.2.$val.[incr i] {
+      catchsql {
+        BEGIN;
+        UPDATE x1_data SET block=rewrite_pgidx(block, $val) WHERE id=$rowid;
+        SELECT rowid FROM x1 WHERE x1 MATCH 'xa*';
+        SELECT rowid FROM x1 WHERE x1 MATCH 'xb*';
+        SELECT rowid FROM x1 WHERE x1 MATCH 'xc*';
+        SELECT rowid FROM x1 WHERE x1 MATCH 'xd*';
+        SELECT rowid FROM x1 WHERE x1 MATCH 'xe*';
+        SELECT rowid FROM x1 WHERE x1 MATCH 'xf*';
+        SELECT rowid FROM x1 WHERE x1 MATCH 'xg*';
+        SELECT rowid FROM x1 WHERE x1 MATCH 'xh*';
+        SELECT rowid FROM x1 WHERE x1 MATCH 'xi*';
+      }
+      set {} {}
+    } {}
+    catch { db eval ROLLBACK }
+  }
+}
+
+#------------------------------------------------------------------------
+#
+reset_db
+sqlite3_db_config db DEFENSIVE 0
+do_execsql_test 6.1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a);
+  INSERT INTO t1 VALUES('bbbbb ccccc');
+  SELECT quote(block) FROM t1_data WHERE rowid>100;
+} {X'000000180630626262626201020201056363636363010203040A'}
+do_execsql_test 6.1.1 {
+  UPDATE t1_data SET block = 
+  X'000000180630626262626201020201056161616161010203040A'
+  WHERE rowid>100;
+}
+do_catchsql_test 6.1.2 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+} {1 {database disk image is malformed}}
+
+#-------
+reset_db
+sqlite3_db_config db DEFENSIVE 0
+do_execsql_test 6.2.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a);
+  INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
+  INSERT INTO t1 VALUES('aa bb cc dd ee');
+  SELECT pgno, quote(term) FROM t1_idx;
+} {2 X'' 4 X'3064'}
+do_execsql_test 6.2.1 {
+  UPDATE t1_idx SET term = X'3065' WHERE pgno=4;
+}
+do_catchsql_test 6.2.2 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+} {1 {database disk image is malformed}}
+
+#-------
+reset_db
+sqlite3_db_config db DEFENSIVE 0
+do_execsql_test 6.3.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a);
+  INSERT INTO t1 VALUES('abc abcdef abcdefghi');
+  SELECT quote(block) FROM t1_data WHERE id>100;
+}    {X'0000001C043061626301020204036465660102030703676869010204040808'}
+do_execsql_test 6.3.1 {
+  BEGIN;
+    UPDATE t1_data SET block = 
+      X'0000001C043061626301020204036465660102035003676869010204040808'
+      ------------------------------------------^^---------------------
+    WHERE id>100;
+}
+do_catchsql_test 6.3.2 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+} {1 {database disk image is malformed}}
+do_execsql_test 6.3.3 {
+  ROLLBACK;
+  BEGIN;
+    UPDATE t1_data SET block = 
+      X'0000001C043061626301020204036465660102030750676869010204040808'
+      --------------------------------------------^^-------------------
+    WHERE id>100;
+}
+do_catchsql_test 6.3.3 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+} {1 {database disk image is malformed}}
+do_execsql_test 6.3.4 {
+  ROLLBACK;
+  BEGIN;
+    UPDATE t1_data SET block = 
+      X'0000001C043061626301020204036465660102030707676869010204040850'
+      --------------------------------------------------------------^^-
+    WHERE id>100;
+}
+do_catchsql_test 6.3.5 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+} {1 {database disk image is malformed}}
+do_execsql_test 6.3.6 {
+  ROLLBACK;
+  BEGIN;
+    UPDATE t1_data SET block = 
+      X'0000001C503061626301020204036465660102030707676869010204040808'
+      ----------^^-----------------------------------------------------
+    WHERE id>100;
+}
+do_catchsql_test 6.3.5 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+} {1 {database disk image is malformed}}
+
+
+#------------------------------------------------------------------------
+#
+reset_db
+proc rnddoc {n} {
+  set map [list a b c d]
+  set doc [list]
+  for {set i 0} {$i < $n} {incr i} {
+    lappend doc "x[lindex $map [expr int(rand()*4)]]"
+  }
+  set doc
+}
+
+db func rnddoc rnddoc
+do_test 7.0 {
+  execsql {
+    CREATE VIRTUAL TABLE t5 USING fts5(x);
+    INSERT INTO t5 VALUES( rnddoc(10000) );
+    INSERT INTO t5 VALUES( rnddoc(10000) );
+    INSERT INTO t5 VALUES( rnddoc(10000) );
+    INSERT INTO t5 VALUES( rnddoc(10000) );
+    INSERT INTO t5(t5) VALUES('optimize');
+  }
+} {}
+
+sqlite3_db_config db DEFENSIVE 0
+do_test 7.1 {
+  foreach i [db eval { SELECT rowid FROM t5_data WHERE rowid>100 }] {
+    db eval BEGIN  
+    db eval {DELETE FROM t5_data WHERE rowid = $i}
+    set r [catchsql { INSERT INTO t5(t5) VALUES('integrity-check')} ]
+    if {$r != "1 {database disk image is malformed}"} { error $r }
+    db eval ROLLBACK  
+  }
+} {}
+
+#------------------------------------------------------------------------
+# Corruption within the structure record.
+#
+reset_db
+do_execsql_test 8.1 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x, y);
+  INSERT INTO t1 VALUES('one', 'two');
+}
+
+sqlite3_db_config db DEFENSIVE 0
+do_test 9.1.1 {
+  set    blob "12345678"    ;# cookie
+  append blob "0105"        ;# 1 level, total of 5 segments
+  append blob "06"          ;# write counter
+  append blob "0002"        ;# first level has 0 segments merging, 2 other.
+  append blob "450108"      ;# first segment
+  execsql "REPLACE INTO t1_data VALUES(10, X'$blob')"
+} {}
+do_catchsql_test 9.1.2 {
+  SELECT * FROM t1('one AND two');
+} {1 {database disk image is malformed}}
+
+do_test 9.2.1 {
+  set    blob "12345678"    ;# cookie
+  append blob "0205"        ;# 2 levels, total of 5 segments
+  append blob "06"          ;# write counter
+  append blob "0001"        ;# first level has 0 segments merging, 1 other.
+  append blob "450108"      ;# first segment
+  execsql "REPLACE INTO t1_data VALUES(10, X'$blob')"
+} {}
+do_catchsql_test 9.2.2 {
+  SELECT * FROM t1('one AND two');
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 10.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 32768 pagesize 4096 filename c9.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 07   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 07 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 00 00 00 07 0d d2 00 0f c4 0f 6d   ...............m
+|    112: 0f 02 0e ab 0e 4e 0d f6 0d d2 00 00 00 00 00 00   .....N..........
+|   3536: 00 00 22 07 06 17 11 11 01 31 74 61 62 6c 65 74   .........1tablet
+|   3552: 32 74 32 07 43 52 45 41 54 45 20 54 41 42 4c 45   2t2.CREATE TABLE
+|   3568: 20 74 32 28 78 29 56 06 06 17 1f 1f 01 7d 74 61    t2(x)V.......ta
+|   3584: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   blet1_configt1_c
+|   3600: 6f 6e 66 69 67 06 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
+|   3616: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
+|   3632: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
+|   3648: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 05    WITHOUT ROWID[.
+|   3664: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64   ..!!...tablet1_d
+|   3680: 6f 63 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65   ocsizet1_docsize
+|   3696: 05 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
+|   3712: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
+|   3728: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
+|   3744: 59 2c 20 73 7a 20 42 4c 4f 42 29 55 04 06 17 21   Y, sz BLOB)U...!
+|   3760: 21 01 77 74 61 62 6c 65 74 31 5f 63 6f 6e 74 65   !.wtablet1_conte
+|   3776: 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 04 43 52 45   ntt1_content.CRE
+|   3792: 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63 6f   ATE TABLE 't1_co
+|   3808: 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47 45   ntent'(id INTEGE
+|   3824: 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 63   R PRIMARY KEY, c
+|   3840: 30 29 69 03 07 17 19 19 01 81 2d 74 61 62 6c 65   0)i.......-table
+|   3856: 74 31 5f 69 64 78 74 31 5f 69 64 78 03 43 52 45   t1_idxt1_idx.CRE
+|   3872: 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 69 64   ATE TABLE 't1_id
+|   3888: 78 27 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20   x'(segid, term, 
+|   3904: 70 67 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45   pgno, PRIMARY KE
+|   3920: 59 28 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20   Y(segid, term)) 
+|   3936: 57 49 54 48 4f 55 54 20 52 4f 57 49 44 55 02 07   WITHOUT ROWIDU..
+|   3952: 17 1b 1b 01 81 01 74 61 62 6c 65 74 31 5f 64 61   ......tablet1_da
+|   3968: 74 61 74 31 5f 64 61 74 61 02 43 52 45 41 54 45   tat1_data.CREATE
+|   3984: 20 54 41 42 4c 45 20 27 74 31 5f 64 61 74 61 27    TABLE 't1_data'
+|   4000: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   (id INTEGER PRIM
+|   4016: 41 52 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42   ARY KEY, block B
+|   4032: 4c 4f 42 29 3a 01 06 17 11 11 08 63 74 61 62 6c   LOB):......ctabl
+|   4048: 65 74 31 74 31 43 52 45 41 54 45 20 56 49 52 54   et1t1CREATE VIRT
+|   4064: 55 41 4c 20 54 41 42 4c 45 20 74 31 20 55 53 49   UAL TABLE t1 USI
+|   4080: 4e 47 20 66 74 73 35 28 63 6f 6e 74 65 6e 74 29   NG fts5(content)
+| page 2 offset 4096
+|      0: 0d 00 00 00 03 0f bd 00 0f e8 0f ef 0f bd 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 00 00 00 00 00 24 84 80   .............$..
+|   4032: 80 80 80 01 03 00 4e 00 00 00 1e 06 30 61 62 61   ......N.....0aba
+|   4048: 63 6b 01 02 02 04 02 66 74 02 06 36 b0 a0 10 21   ck.....ft..6...!
+|   4064: d6 f7 07 46 96 d6 97 a6 05 01 03 00 10 03 03 0f   ...F............
+|   4080: 0a 03 00 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 3 offset 8192
+|      0: 0a 00 00 00 01 0f fa 00 0f fa 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
+| page 4 offset 12288
+|      0: 0d 00 00 00 03 0f e0 00 0f f6 0f ec 0f e0 00 00   ................
+|   4064: 0a 03 03 00 1b 61 62 61 6e 64 6f 6e 08 02 03 00   .....abandon....
+|   4080: 17 61 62 61 66 74 08 01 03 00 17 61 62 61 63 6b   .abaft.....aback
+| page 5 offset 16384
+|      0: 0d 00 00 00 03 0f ee 00 0f fa 0f f4 0f ee 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 04 03   ................
+|   4080: 03 00 0e 01 04 02 03 00 0e 01 04 01 03 00 0e 01   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 7 offset 24576
+|      0: 0d 00 00 00 03 0f d6 00 0f f4 0f e1 0f d6 00 00   ................
+|   4048: 00 00 00 00 00 00 09 03 02 1b 72 65 62 75 69 6c   ..........rebuil
+|   4064: 64 11 02 02 2b 69 6e 74 65 67 72 69 74 79 2d 63   d...+integrity-c
+|   4080: 68 65 62 6c 65 74 31 74 31 43 52 45 41 54 45 20   heblet1t1CREATE 
+| page 8 offset 28672
+|      0: 56 49 52 54 55 41 4c 20 54 41 42 4c 45 20 74 31   VIRTUAL TABLE t1
+|     16: 20 55 53 49 4e 47 20 66 74 73 35 28 63 6f 6e 74    USING fts5(cont
+|     32: 65 6e 74 29 0d 00 00 00 03 0f bd 00 0f e8 0f ef   ent)............
+|     48: 0f bd 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+| end c9.db
+  }]
+} {}
+do_catchsql_test 10.1 {
+  SELECT * FROM t1 WHERE t1 MATCH 'abandon';
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_test 11.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 28672 pagesize 4096 filename c10b.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 01 00 00 00 07   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     48: 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 00   ................
+|     80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01   ................
+|     96: 00 2e 30 38 0d 00 00 00 07 0d d2 00 0f c4 0f 6d   ..08...........m
+|    112: 0f 02 0e ab 0e 4e 0d f6 0d d2 00 00 00 00 00 00   .....N..........
+|   3536: 00 00 22 07 06 17 11 11 01 31 74 61 62 6c 65 74   .........1tablet
+|   3552: 32 74 32 07 43 52 45 41 54 45 20 54 41 42 4c 45   2t2.CREATE TABLE
+|   3568: 20 74 32 28 78 29 56 06 06 17 1f 1f 01 7d 74 61    t2(x)V.......ta
+|   3584: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   blet1_configt1_c
+|   3600: 6f 6e 66 69 67 06 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
+|   3616: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
+|   3632: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
+|   3648: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 05    WITHOUT ROWID[.
+|   3664: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64   ..!!...tablet1_d
+|   3680: 6f 63 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65   ocsizet1_docsize
+|   3696: 05 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
+|   3712: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
+|   3728: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
+|   3744: 59 2c 20 73 7a 20 42 4c 4f 42 29 55 04 06 17 21   Y, sz BLOB)U...!
+|   3760: 21 01 77 74 61 62 6c 65 74 31 5f 63 6f 6e 74 65   !.wtablet1_conte
+|   3776: 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 04 43 52 45   ntt1_content.CRE
+|   3792: 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63 6f   ATE TABLE 't1_co
+|   3808: 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47 45   ntent'(id INTEGE
+|   3824: 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 63   R PRIMARY KEY, c
+|   3840: 30 29 69 03 07 17 19 19 01 81 2d 74 61 62 6c 65   0)i.......-table
+|   3856: 74 31 5f 69 64 78 74 31 5f 69 64 78 03 43 52 45   t1_idxt1_idx.CRE
+|   3872: 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 69 64   ATE TABLE 't1_id
+|   3888: 78 27 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20   x'(segid, term, 
+|   3904: 70 67 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45   pgno, PRIMARY KE
+|   3920: 59 28 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20   Y(segid, term)) 
+|   3936: 57 49 54 48 4f 55 54 20 52 4f 57 49 44 55 02 07   WITHOUT ROWIDU..
+|   3952: 17 1b 1b 01 81 01 74 61 62 6c 65 74 31 5f 64 61   ......tablet1_da
+|   3968: 74 61 74 31 5f 64 61 74 61 02 43 52 45 41 54 45   tat1_data.CREATE
+|   3984: 20 54 41 42 4c 45 20 27 74 31 5f 64 61 74 61 27    TABLE 't1_data'
+|   4000: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 44 d9   (id INTEGER PRD.
+|   4016: 41 52 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42   ARY KEY, block B
+|   4032: 4c 4f 42 29 3a 01 06 17 11 11 08 63 74 61 62 6c   LOB):......ctabl
+|   4048: 65 74 31 74 31 43 52 45 41 54 45 20 56 49 52 54   et1t1CREATE VIRT
+|   4064: 55 41 4c 20 54 41 42 4c 45 20 74 31 20 55 53 49   UAL TABLE t1 USI
+|   4080: 4e 47 20 66 74 73 35 28 63 6f 6e 74 65 6e 74 29   NG fts5(content)
+| page 2 offset 4096
+|      0: 0d 00 00 00 06 0f 59 00 0f e8 0f ef 0f bd 0f b0   ......Y.........
+|     16: 0f 73 0f 59 00 00 00 00 00 00 00 00 00 00 00 00   .s.Y............
+|   3920: 00 00 00 00 00 00 00 00 00 13 84 80 80 80 80 04   ................
+|   3936: 03 01 2a 0a 00 00 00 00 01 02 02 00 02 01 01 01   ..*.............
+|   3952: 02 01 01 36 84 80 80 80 80 03 03 05 66 00 40 00   ...6........f.@.
+|   3968: 00 00 01 00 00 00 29 07 30 61 63 74 69 76 65 04   ......).0active.
+|   3984: 02 02 02 03 74 6f 6d 06 02 02 05 02 69 63 07 02   ....tom.....ic..
+|   4000: 02 01 06 62 6f 6f 6d 65 72 05 02 02 04 0b 08 07   ...boomer.......
+|   4016: 06 84 80 80 80 80 02 03 01 10 01 07 07 24 84 80   .............$..
+|   4032: 80 80 80 01 03 00 4e 00 00 00 1e 06 30 61 62 61   ......N.....0aba
+|   4048: 63 6b 01 02 02 04 02 66 74 02 02 02 04 04 6e 64   ck.....ft.....nd
+|   4064: 6f 6e 03 02 02 04 0a 07 05 01 03 00 10 03 03 0f   on..............
+|   4080: 0a 03 00 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 3 offset 8192
+|      0: 0a 00 00 00 02 0f f3 00 0f fa 0f f3 00 00 00 00   ................
+|   4080: 00 00 00 06 04 01 0c 01 02 02 05 04 09 0c 01 02   ................
+| page 4 offset 12288
+|      0: 0d 00 00 00 07 0f b6 00 0f f6 0f ec 0f e0 0f d5   ................
+|     16: 0f ca 0f c1 0f b6 00 00 00 00 00 00 00 00 00 00   ................
+|   4016: 00 00 00 00 00 00 09 07 03 00 19 61 74 6f 6d 69   ...........atomi
+|   4032: 63 07 06 03 00 15 61 74 6f 6d 09 05 03 00 19 62   c.....atom.....b
+|   4048: 6f 6f 6d 65 72 09 04 03 00 19 61 63 74 69 76 65   oomer.....active
+|   4064: 0a 03 03 00 1b 61 62 61 6e 64 6f 6e 08 02 03 00   .....abandon....
+|   4080: 17 61 62 61 66 74 08 01 03 00 17 61 62 61 63 6b   .abaft.....aback
+| page 5 offset 16384
+|      0: 0d 00 00 00 07 0f d6 00 0f fa 0f f4 0f ee 0f e8   ................
+|     16: 0f e2 0f dc 0f d6 00 00 00 00 00 00 00 00 00 00   ................
+|   4048: 00 00 00 00 00 00 04 07 03 00 0e 01 04 06 03 00   ................
+|   4064: 0e 01 04 05 03 00 0e 01 04 04 03 00 0e 01 04 03   ................
+|   4080: 03 00 0e 01 04 02 03 00 0e 01 04 01 03 00 0e 01   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 7 offset 24576
+|      0: 0d 00 00 00 03 0f d6 00 0f f4 0f e1 0f d6 00 00   ................
+|   4048: 00 00 00 00 00 00 09 03 02 1b 72 65 62 75 69 6c   ..........rebuil
+|   4064: 64 11 02 02 2b 69 6e 74 65 67 72 69 74 79 2d 63   d...+integrity-c
+|   4080: 68 65 63 6b 0a 01 02 1d 6f 70 74 69 6d 69 7a 65   heck....optimize
+| end c10b.db
+}]} {}
+
+# This returns SQLITE_CONSTRAINT instead of SQLITE_CORRUPT. The problem is
+# that the corrupted structure-record leads fts5 to try to use a segment-id
+# that is already in use. This is caught by the PRIMARY KEY constraint on
+# the %_idx table.
+#
+do_catchsql_test 11.1 {
+  UPDATE t1 SET content='abc' WHERE content='boomer';
+} {1 {constraint failed}}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_test 12.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 28672 pagesize 4096 filename c2.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 07   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 07 00 00 00 00   ................
+|     48: 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 00   ................
+|     96: 00 00 00 00 0d 00 00 00 07 0d d2 00 0f c4 0f 6d   ...............m
+|    112: 0f 02 0e ab 0e 4e 0d f6 0d d2 00 00 00 00 00 00   .....N..........
+|   3536: 00 00 22 07 06 17 11 11 01 31 74 61 62 6c 65 74   .........1tablet
+|   3552: 32 74 32 07 43 52 45 41 54 45 20 54 41 42 4c 45   2t2.CREATE TABLE
+|   3568: 20 74 32 28 78 29 56 06 06 17 1f 1f 01 7d 74 61    t2(x)V.......ta
+|   3584: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   blet1_configt1_c
+|   3600: 6f 6e 66 69 67 06 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
+|   3616: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
+|   3632: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
+|   3648: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 05    WITHOUT ROWID[.
+|   3664: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64   ..!!...tablet1_d
+|   3680: 6f 63 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65   ocsizet1_docsize
+|   3696: 05 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
+|   3712: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
+|   3728: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
+|   3744: 59 2c 20 73 7a 20 42 4c 4f 42 29 55 04 06 17 21   Y, sz BLOB)U...!
+|   3760: 21 01 77 74 61 62 6c 65 74 31 5f 63 6f 6e 74 65   !.wtablet1_conte
+|   3776: 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 04 43 52 45   ntt1_content.CRE
+|   3792: 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63 6f   ATE TABLE 't1_co
+|   3808: 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47 45   ntent'(id INTEGE
+|   3824: 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 63   R PRIMARY KEY, c
+|   3840: 30 29 69 03 07 17 19 19 01 81 2d 74 61 62 6c 65   0)i.......-table
+|   3856: 74 31 5f 69 64 78 74 31 5f 69 64 78 03 43 52 45   t1_idxt1_idx.CRE
+|   3872: 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 69 64   ATE TABLE 't1_id
+|   3888: 78 27 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20   x'(segid, term, 
+|   3904: 70 67 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45   pgno, PRIMARY KE
+|   3920: 59 28 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20   Y(segid, term)) 
+|   3936: 57 49 54 48 4f 55 54 20 52 4f 57 49 44 55 02 07   WITHOUT ROWIDU..
+|   3952: 17 1b 1b 01 81 01 74 61 62 6c 65 74 31 5f 64 61   ......tablet1_da
+|   3968: 74 61 74 31 5f 64 61 74 61 02 43 52 45 41 54 45   tat1_data.CREATE
+|   3984: 20 54 41 42 4c 45 20 27 74 31 5f 64 61 74 61 27    TABLE 't1_data'
+|   4000: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   (id INTEGER PRIM
+|   4016: 41 52 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42   ARY KEY, block B
+|   4032: 4c 4f 42 29 3a 01 06 17 11 11 08 63 74 61 62 6c   LOB):......ctabl
+|   4048: 65 74 31 74 31 43 52 45 41 54 45 20 56 49 52 54   et1t1CREATE VIRT
+|   4064: 55 41 4c 20 54 41 42 4c 45 20 74 31 20 55 53 49   UAL TABLE t1 USI
+|   4080: 4e 47 20 66 74 73 35 28 63 6f 6e 74 65 6e 74 29   NG fts5(content)
+| page 2 offset 4096
+|      0: 0d 00 00 00 03 0f bd 00 0f d8 0f ef 0f bd 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 00 00 00 00 00 24 84 80   .............$..
+|   4032: 80 80 80 01 03 00 4e 00 00 00 1e 06 30 61 62 61   ......N.....0aba
+|   4048: 63 6b 01 02 02 04 02 66 74 02 02 02 04 04 6e 64   ck.....ft.....nd
+|   4064: 6f 6e 03 02 02 04 0a 07 05 01 03 00 10 03 03 0f   on..............
+|   4080: 0a 03 00 24 00 00 00 00 01 01 01 20 01 01 01 01   ...$....... ....
+| page 3 offset 8192
+|      0: 0a 00 00 00 01 0f fa 00 0f fa 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
+| page 4 offset 12288
+|      0: 0d 00 00 00 03 0f e0 00 0f f6 0f ec 0f e0 3f e0   ..............?.
+|     16: a0 30 30 01 b6 16 26 16 e6 46 f6 e0 80 20 30 01   .00...&..F... 0.
+|     32: 76 16 26 16 67 40 80 10 30 01 76 16 26 16 36 b0   v.&.g@..0.v.&.6.
+|     48: d0 00 00 00 30 fe e0 00 ff a0 ff 40 fe 00 00 00   ....0......@....
+| page 5 offset 16384
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 04 03   ................
+|   4080: 03 00 0e 01 04 02 03 00 0e 01 04 01 03 00 0e 01   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 7 offset 24576
+|      0: 0d 00 00 00 03 0f d6 00 0f f4 0f e1 0f d6 00 00   ................
+|   4048: 00 00 00 00 00 00 09 03 02 1b 72 65 62 75 69 6c   ..........rebuil
+|   4064: 64 11 02 02 2b 69 6e 74 65 67 72 69 74 79 2d 63   d...+integrity-c
+|   4080: 68 65 63 6b 0a 01 02 1d 6f 70 74 69 6d 69 7a 65   heck....optimize
+| end c2.db
+}]} {}
+
+do_catchsql_test 11.1 {
+  SELECT * FROM t1 WHERE t1 MATCH 'abandon';
+} {1 {database disk image is malformed}}
+
+do_catchsql_test 11.2 {
+  INSERT INTO t1(t1, rank) VALUES('merge', 500);
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_test 13.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 28672 pagesize 4096 filename c13.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 07   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 07 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 00 00 00 07 0d d2 00 0f c4 0f 6d   ...............m
+|    112: 0f 02 0e ab 0e 4e 0d f6 0d d2 00 00 00 00 00 00   .....N..........
+|   3536: 00 00 22 07 06 17 11 11 01 31 74 61 62 6c 65 74   .........1tablet
+|   3552: 32 74 32 07 43 52 45 41 54 45 20 54 41 42 4c 45   2t2.CREATE TABLE
+|   3568: 20 74 32 28 78 29 56 06 06 17 1f 1f 01 7d 74 61    t2(x)V.......ta
+|   3584: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   blet1_configt1_c
+|   3600: 6f 6e 66 69 67 06 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
+|   3616: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
+|   3632: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
+|   3648: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 05    WITHOUT ROWID[.
+|   3664: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64   ..!!...tablet1_d
+|   3680: 6f 63 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65   ocsizet1_docsize
+|   3696: 05 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
+|   3712: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
+|   3728: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
+|   3744: 59 2c 20 73 7a 20 42 4c 4f 42 29 55 04 06 17 21   Y, sz BLOB)U...!
+|   3760: 21 01 77 74 61 62 6c 65 74 31 5f 63 6f 6e 74 65   !.wtablet1_conte
+|   3776: 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 04 43 52 45   ntt1_content.CRE
+|   3792: 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63 6f   ATE TABLE 't1_co
+|   3808: 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47 45   ntent'(id INTEGE
+|   3824: 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 63   R PRIMARY KEY, c
+|   3840: 30 29 69 03 07 17 19 19 01 81 2d 74 61 62 6c 65   0)i.......-table
+|   3856: 74 31 5f 69 64 78 74 31 5f 69 64 78 03 43 52 45   t1_idxt1_idx.CRE
+|   3872: 41 54 45 20 54 41 42 4c 45 20 27 74 31 4f 69 64   ATE TABLE 't1Oid
+|   3888: 78 27 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20   x'(segid, term, 
+|   3904: 70 67 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45   pgno, PRIMARY KE
+|   3920: 59 28 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20   Y(segid, term)) 
+|   3936: 57 49 54 48 4f 55 54 20 52 4f 57 49 44 55 02 07   WITHOUT ROWIDU..
+|   3952: 17 1b 1b 01 81 01 74 61 62 6c 65 74 31 5f 64 61   ......tablet1_da
+|   3968: 74 61 74 31 5f 64 61 74 61 02 43 52 45 41 54 45   tat1_data.CREATE
+|   3984: 20 54 41 42 4c 45 20 27 74 31 5f 64 61 74 61 27    TABLE 't1_data'
+|   4000: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   (id INTEGER PRIM
+|   4016: 41 52 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42   ARY KEY, block B
+|   4032: 4c 4f 42 29 3a 01 06 17 11 11 08 63 74 61 62 6c   LOB):......ctabl
+|   4048: 65 74 31 74 31 43 52 45 41 54 45 20 56 49 52 54   et1t1CREATE VIRT
+|   4064: 55 41 4c 20 54 41 42 4c 45 20 74 31 20 55 53 49   UAL TABLE t1 USI
+|   4080: 4e 47 20 66 74 73 35 28 63 6f 6e 74 65 6e 74 29   NG fts5(content)
+| page 2 offset 4096
+|      0: 0d 00 00 00 03 0f bd 00 0f e8 0f ef 0f bd 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 00 00 00 00 00 24 84 80   .............$..
+|   4032: 80 80 80 01 03 00 4e 00 00 00 1e 06 30 61 62 61   ......N.....0aba
+|   4048: 63 6b 01 02 02 04 02 66 74 02 02 02 04 04 6e 64   ck.....ft.....nd
+|   4064: 6f 6e 03 02 02 04 0a 07 05 01 03 00 10 03 03 0f   on..............
+|   4080: 0a 03 00 24 00 eb 00 00 00 01 01 01 00 01 01 01   ...$............
+| page 3 offset 8192
+|      0: 01 0a 00 00 00 01 0f fa 00 0f fa 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
+| page 4 offset 12288
+|      0: 0d 00 00 00 03 0f e0 00 0f f6 0f ec 0f e0 00 00   ................
+|   4064: 0a 03 03 00 1b 61 62 61 6e 64 6f 6e 08 02 03 00   .....abandon....
+|   4080: 17 61 62 61 66 74 08 01 03 00 17 61 62 61 63 6b   .abaft.....aback
+| page 5 offset 16384
+|      0: 0d 00 00 00 03 0f ee 00 0f fa 0f f2 0f ee 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 04 03   ................
+|   4080: 03 00 0e 01 04 02 03 00 0e 01 04 01 03 00 0e 01   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 7 offset 24576
+|      0: 0d 00 00 00 03 0f d6 00 0f f4 0f e1 0f d6 00 00   ................
+|   4048: 00 00 00 00 00 00 09 03 02 1b 72 65 62 75 69 6c   ..........rebuil
+|   4064: 64 11 02 02 2b 69 6e 74 65 67 72 69 74 79 2d 63   d...+integrity-c
+|   4080: 68 65 63 6b 0a 01 02 1d 6f 70 74 69 6d 69 7a 65   heck....optimize
+| end c13.db
+SELECT * FROM t1 WHERE t1 MATCH 'abandon';
+}]} {}
+
+do_catchsql_test 13.1 {
+  SELECT * FROM t1 WHERE t1 MATCH 'abandon'; 
+} {/*malformed database schema*/}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 14.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 28672 pagesize 4096 filename c14b.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 01 00 00 00 07   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     48: 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 00   ................
+|     80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01   ................
+|     96: 00 2e 30 38 0d 00 00 00 07 0d d2 00 0f c4 0f 6d   ..08...........m
+|    112: 0f 02 0e ab 0e 4e 0d f6 0d d2 00 00 00 00 00 00   .....N..........
+|   3536: 00 00 22 07 06 17 11 11 01 31 74 61 62 6c 65 74   .........1tablet
+|   3552: 32 74 32 07 43 52 45 41 54 45 20 54 41 42 4c 45   2t2.CREATE TABLE
+|   3568: 20 74 32 28 78 29 56 06 06 17 1f 1f 01 7d 74 61    t2(x)V.......ta
+|   3584: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   blet1_configt1_c
+|   3600: 6f 6e 66 69 67 06 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
+|   3616: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
+|   3632: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
+|   3648: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 05    WITHOUT ROWID[.
+|   3664: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64   ..!!...tablet1_d
+|   3680: 6f 63 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65   ocsizet1_docsize
+|   3696: 05 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
+|   3712: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
+|   3728: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
+|   3744: 59 2c 20 73 7a 20 42 4c 4f 42 29 55 04 06 17 21   Y, sz BLOB)U...!
+|   3760: 21 01 77 74 61 62 6c 65 74 31 5f 63 6f 6e 74 65   !.wtablet1_conte
+|   3776: 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 04 43 52 45   ntt1_content.CRE
+|   3792: 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63 6f   ATE TABLE 't1_co
+|   3808: 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47 45   ntent'(id INTEGE
+|   3824: 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 63   R PRIMARY KEY, c
+|   3840: 30 29 69 03 07 17 19 19 01 81 2d 74 61 62 6c 65   0)i.......-table
+|   3856: 74 31 5f 69 64 78 74 31 5f 69 64 78 03 43 52 45   t1_idxt1_idx.CRE
+|   3872: 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 69 64   ATE TABLE 't1_id
+|   3888: 78 27 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20   x'(segid, term, 
+|   3904: 70 67 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45   pgno, PRIMARY KE
+|   3920: 59 28 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20   Y(segid, term)) 
+|   3936: 57 49 54 48 4f 55 54 20 52 4f 57 49 44 55 02 07   WITHOUT ROWIDU..
+|   3952: 17 1b 1b 01 81 01 74 61 62 6c 65 74 31 5f 64 61   ......tablet1_da
+|   3968: 74 61 74 31 5f 64 61 74 61 02 43 52 45 41 54 45   tat1_data.CREATE
+|   3984: 20 54 41 42 4c 45 20 27 74 31 5f 64 61 74 61 27    TABLE 't1_data'
+|   4000: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   (id INTEGER PRIM
+|   4016: 41 52 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42   ARY KEY, block B
+|   4032: 4c 4f 42 29 3a 01 06 17 11 11 08 63 74 61 62 6c   LOB):......ctabl
+|   4048: 65 74 31 74 31 43 52 45 41 54 45 20 56 49 52 54   et1t1CREATE VIRT
+|   4064: 55 41 4c 20 54 41 42 4c 45 20 74 31 20 55 53 49   UAL TABLE t1 USI
+|   4080: 4e 47 20 66 74 73 35 28 63 6f 6e 74 65 6e 74 29   NG fts5(content)
+| page 2 offset 4096
+|      0: 0d 0f ef 00 04 0f 18 00 0f e8 0f 18 0f bd 0f 2c   ...............,
+|   3856: 00 00 00 00 00 00 00 00 12 0a 03 00 2a 00 00 00   ............*...
+|   3872: 00 01 02 02 00 02 01 01 01 02 01 01 81 09 88 80   ................
+|   3888: 80 80 80 01 04 00 82 16 00 00 00 79 06 30 61 62   ...........y.0ab
+|   3904: 61 63 6b 08 02 07 04 04 6e 64 6f 6e 08 02 05 02   ack.....ndon....
+|   3920: 05 63 74 69 76 65 04 02 02 04 02 0b 02 04 6c 70   .ctive........lp
+|   3936: 68 61 08 04 02 0a 02 03 74 6b 6d 06 02 02 03 02   ha......tkm.....
+|   3952: 6f 6d 08 02 09 05 02 69 63 07 02 02 01 06 62 61   om.....ic.....ba
+|   3968: 63 6b 75 70 08 02 04 02 05 6f 6f 6d 65 72 05 02   ckup.....oomer..
+|   3984: 02 01 0c 63 68 61 6e 6e 65 62 6f 6f 6d 65 72 08   ...channeboomer.
+|   4000: 02 08 07 01 6c 08 02 03 01 04 74 65 73 74 08 02   ....l.....test..
+|   4016: 06 04 0a 09 0d 0a 08 07 07 0b 0a 11 06 24 84 80   .............$..
+|   4032: 80 80 80 01 03 00 4e 00 00 00 1e 06 30 61 62 61   ......N.....0aba
+|   4048: 63 6b 01 02 02 04 02 66 74 02 02 02 04 04 6e 64   ck.....ft.....nd
+|   4064: 6f 6e 03 02 02 03 9a 07 05 01 03 00 10 08 11 00   on..............
+|   4080: 00 00 11 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 3 offset 8192
+|      0: 0a 00 00 00 02 0f f3 00 0f fa 0f f3 00 00 00 00   ................
+|   4080: 00 00 00 06 04 01 0c 01 02 02 05 04 09 0c 01 02   ................
+| page 4 offset 12288
+|      0: 0d 00 00 00 08 0f 6a 00 0f f6 0f ec 0f e0 0f d5   ......j.........
+|     16: 0f ca 0f c1 0f b6 0f 6a 00 00 00 00 00 00 00 00   .......j........
+|   3936: 00 00 00 00 00 00 00 00 00 00 4a 08 04 00 81 19   ..........J.....
+|   3952: 61 6c 70 68 61 20 63 68 61 6e 6e 65 6c 20 62 61   alpha channel ba
+|   3968: 63 6b 75 70 20 61 62 61 6e 64 6f 6e 20 74 65 73   ckup abandon tes
+|   3984: 74 20 61 62 61 63 6b 20 63 68 61 6e 6e 65 62 6f   t aback channebo
+|   4000: 6f 6d 65 72 20 61 74 6f 6d 20 61 6c 70 68 61 20   omer atom alpha 
+|   4016: 61 63 74 69 76 65 09 07 03 00 19 61 74 6f 6d 69   active.....atomi
+|   4032: 63 07 06 03 00 15 61 74 6b 6d 09 05 03 00 19 62   c.....atkm.....b
+|   4048: 6f 6f 6d 65 72 09 04 03 00 19 61 63 74 69 76 65   oomer.....active
+|   4064: 0a 03 03 00 1b 61 62 61 6e 64 6f 6e 08 02 03 00   .....abandon....
+|   4080: 17 61 62 61 66 74 08 01 03 00 17 61 62 61 63 6b   .abaft.....aback
+| page 5 offset 16384
+|      0: 0d 00 00 00 08 0f d0 00 0f fa 0f f4 0f ee 0f e8   ................
+|     16: 0f e2 0f dc 0f d6 0f d0 00 00 00 00 00 00 00 00   ................
+|   4048: 04 08 03 00 0e 0a 04 07 03 00 0e 01 04 06 03 00   ................
+|   4064: 0e 01 04 05 03 00 0e 01 04 04 03 00 0e 01 04 03   ................
+|   4080: 03 00 0e 01 04 02 03 00 0e 01 04 01 03 00 0e 01   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 7 offset 24576
+|      0: 0d 00 00 00 03 0f d6 00 0f f4 0f e1 0f d6 00 00   ................
+|   4048: 00 00 00 00 00 00 09 03 02 1b 72 65 62 75 69 6c   ..........rebuil
+|   4064: 64 11 02 02 2b 69 6e 74 65 67 72 69 74 79 2d 63   d...+integrity-c
+|   4080: 68 65 63 6b 0a 01 02 1d 6f 70 74 69 6d 69 7a 65   heck....optimize
+| end c14b.db
+}]} {}
+
+do_catchsql_test 14.1 {
+  INSERT INTO t1(t1) VALUES('optimize');
+} {1 {database disk image is malformed}}
+
+#---------------------------------------------------------------------------
+#
+reset_db
+do_test 15.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 32768 pagesize 4096 filename c16.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 07   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 07 00 00 00 00   ................
+|     48: 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 00   ................
+|     96: 00 00 00 00 0d 00 00 00 07 0d d2 00 0f c4 0f 6d   ...............m
+|    112: 0f 02 0e ab 0e 4e 0d f6 0d d2 00 00 00 00 00 00   .....N..........
+|   3536: 00 00 22 07 06 17 11 11 01 31 74 61 62 6c 65 74   .........1tablet
+|   3552: 32 74 32 07 43 52 45 41 54 45 20 54 41 42 4c 45   2t2.CREATE TABLE
+|   3568: 20 74 32 28 78 29 56 06 06 17 1f 1f 01 7d 74 61    t2(x)V.......ta
+|   3584: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   blet1_configt1_c
+|   3600: 6f 6e 66 69 67 06 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
+|   3616: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
+|   3632: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
+|   3648: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 05    WITHOUT ROWID[.
+|   3664: 07 17 21 21 01 81 01 74 61 62 6c 00 0f f6 0f ec   ..!!...tabl.....
+|   3680: 0f e0 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65   ..sizet1_docsize
+|   3696: 05 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
+|   3712: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
+|   3728: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
+|   3744: 59 2c 20 73 7a 20 42 4c 4f 42 29 55 04 06 17 21   Y, sz BLOB)U...!
+|   3760: 21 01 77 74 61 62 6c 65 74 31 5f 63 6f 6e 74 65   !.wtablet1_conte
+|   3776: 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 04 43 52 45   ntt1_content.CRE
+|   3792: 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63 6f   ATE TABLE 't1_co
+|   3808: 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47 45   ntent'(id INTEGE
+|   3824: 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 63   R PRIMARY KEY, c
+|   3840: 30 29 69 03 07 17 19 19 01 81 2d 74 61 62 6c 65   0)i.......-table
+|   3856: 74 31 5f 69 64 78 74 31 5f 69 64 78 03 43 52 45   t1_idxt1_idx.CRE
+|   3872: 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 69 64   ATE TABLE 't1_id
+|   3888: 78 27 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20   x'(segid, term, 
+|   3904: 70 67 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45   pgno, PRIMARY KE
+|   3920: 59 28 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20   Y(segid, term)) 
+|   3936: 57 49 54 48 4f 55 54 20 52 4f 57 49 44 55 02 07   WITHOUT ROWIDU..
+|   3952: 17 1b 1b 01 81 01 74 61 62 6c 65 74 31 5f 64 61   ......tablet1_da
+|   3968: 74 61 74 31 5f 64 61 74 61 02 43 52 45 41 54 45   tat1_data.CREATE
+|   3984: 20 54 41 42 4c 45 20 27 74 31 5f 64 61 74 61 27    TABLE 't1_data'
+|   4000: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   (id INTEGER PRIM
+|   4016: 41 52 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42   ARY KEY, block B
+|   4032: 4c 4f 42 29 3a 01 06 17 11 11 08 63 74 61 62 6c   LOB):......ctabl
+|   4048: 65 74 31 74 31 43 52 45 41 54 45 20 56 49 52 54   et1t1CREATE VIRT
+|   4064: 55 41 4c 20 54 41 42 4c 45 20 74 31 20 55 53 49   UAL TABLE t1 USI
+|   4080: 4e 47 20 66 74 73 35 28 63 6f 6e 74 65 6e 74 29   NG fts5(content)
+| page 2 offset 4096
+|      0: 0d 00 00 00 03 0f bd 00 0f e8 0f ef 0f bd 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 00 00 00 00 00 24 84 80   .............$..
+|   4032: 80 80 80 01 03 00 4e 00 00 00 1e 06 30 61 62 61   ......N.....0aba
+|   4048: 63 6b 01 02 02 04 02 66 74 00 02 22 04 04 6e 64   ck.....ft.....nd
+|   4064: 6f 6e 04 67 90 38 2a 07 05 01 03 00 10 03 03 0f   on.g.8*.........
+|   4080: 0a 03 00 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 3 offset 8192
+|      0: 0a 00 00 00 01 0f fa 00 0f fa 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
+| page 4 offset 12288
+|      0: 0d 00 00 00 03 0f e0 00 0f f6 0f ec 0f e0 00 00   ................
+|   4064: 0a 03 03 00 1b 61 62 61 6e 64 6f 6e 08 02 03 00   .....abandon....
+|   4080: 17 61 62 61 66 74 08 01 03 00 17 61 62 61 63 6b   .abaft.....aback
+| page 5 offset 16384
+|      0: 0d 00 00 00 03 0f ee 00 0f fa 0f f4 0f ee 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 04 03   ................
+|   4080: 03 00 0e 01 04 02 03 00 0e 01 04 01 03 00 0e 01   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 7 offset 24576
+|      0: 0d 00 00 00 03 0f d6 00 0f f4 0f e1 0f d6 00 00   ................
+|   4048: 00 00 00 00 00 00 09 03 02 1b 72 65 62 75 69 6c   ..........rebuil
+|   4064: 64 11 02 02 2b 69 6e 74 65 67 72 69 74 79 2d 63   d...+integrity-c
+|   4080: 68 65 63 6b 0a 01 02 1d 6f 70 74 69 6d 69 7a 65   heck....optimize
+| page 8 offset 28672
+|      0: 03 07 17 19 19 01 81 2d 74 61 62 6c 65 74 31 5f   .......-tablet1_
+|     16: 69 64 78 74 31 5f 69 64 78 03 43 52 45 41 54 45   idxt1_idx.CREATE
+|     32: 20 54 41 42 4c 45 20 27 74 31 5f 66 17 42 03 30    TABLE 't1_f.B.0
+|     48: 01 00 00 10 10 04 02 02 00 00 00 00 00 00 00 00   ................
+|     64: 70 00 00 00 00 00 00 00 00 00 00 00 70 00 00 00   p...........p...
+| end c16.db
+}]} {}
+
+do_catchsql_test 15.1 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+} {/*malformed database schema*/}
+
+#---------------------------------------------------------------------------
+#
+reset_db
+do_test 16.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 28672 pagesize 4096 filename c17.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 07   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 07 00 00 00 00   ................
+|     48: 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 00   ................
+|     96: 00 00 00 00 0d 00 00 00 07 0d d2 00 0f c4 0f 6d   ...............m
+|    112: 0f 02 0e ab 0e 4e 0d f6 0d d2 00 00 00 00 00 00   .....N..........
+|   3536: 00 00 22 07 06 17 11 11 01 31 74 61 62 6c 65 74   .........1tablet
+|   3552: 32 74 32 07 43 52 45 41 54 45 20 54 41 42 4c 45   2t2.CREATE TABLE
+|   3568: 20 74 32 28 78 29 56 06 06 17 1f 1f 01 7d 74 61    t2(x)V.......ta
+|   3584: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   blet1_configt1_c
+|   3600: 6f 6e 66 69 67 06 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
+|   3616: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
+|   3632: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
+|   3648: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 05    WITHOUT ROWID[.
+|   3664: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64   ..!!...tablet1_d
+|   3680: 6f 63 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65   ocsizet1_docsize
+|   3696: 05 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
+|   3712: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
+|   3728: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
+|   3744: 59 2c 20 73 7a 20 42 4c 4f 42 29 55 04 06 17 21   Y, sz BLOB)U...!
+|   3760: 21 01 77 74 61 62 6c 65 74 31 5f 63 6f 6e 74 65   !.wtablet1_conte
+|   3776: 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 04 43 52 45   ntt1_content.CRE
+|   3792: 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63 6f   ATE TABLE 't1_co
+|   3808: 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47 45   ntent'(id INTEGE
+|   3824: 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 63   R PRIMARY KEY, c
+|   3840: 30 29 69 03 07 17 19 19 01 81 2d 74 61 62 6c 65   0)i.......-table
+|   3856: 74 31 5f 69 64 78 74 31 5f 69 64 78 03 43 52 45   t1_idxt1_idx.CRE
+|   3872: 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 69 64   ATE TABLE 't1_id
+|   3888: 78 27 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20   x'(segid, term, 
+|   3904: 70 67 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45   pgno, PRIMARY KE
+|   3920: 59 28 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20   Y(segid, term)) 
+|   3936: 57 49 54 48 4f 55 54 20 52 4f 57 49 44 55 02 07   WITHOUT ROWIDU..
+|   3952: 17 1b 1b 01 81 01 74 61 62 6c 65 74 31 5f 64 61   ......tablet1_da
+|   3968: 74 61 74 31 5f 64 61 74 61 02 43 52 45 41 54 45   tat1_data.CREATE
+|   3984: 20 54 41 42 4c 45 20 27 74 31 5f 64 61 74 61 27    TABLE 't1_data'
+|   4000: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   (id INTEGER PRIM
+|   4016: 41 52 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42   ARY KEY, block B
+|   4032: 4c 4f 42 29 3a 01 06 17 11 11 08 63 74 61 62 6c   LOB):......ctabl
+|   4048: 65 74 31 74 31 43 52 45 41 54 45 20 56 49 52 54   et1t1CREATE VIRT
+|   4064: 55 41 4c 20 54 41 42 4c 45 20 74 31 20 55 53 49   UAL TABLE t1 USI
+|   4080: 4e 47 20 66 74 73 35 28 63 6f 6e 74 65 6e 74 29   NG fts5(content)
+| page 2 offset 4096
+|      0: 0d 00 00 00 03 0f bd 00 0f e8 0f ef 0f bd 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 00 00 00 00 00 24 84 80   .............$..
+|   4032: 80 80 80 01 03 00 4e 00 00 00 1e 06 30 61 62 61   ......N.....0aba
+|   4048: 63 6b 01 02 02 04 02 66 74 00 02 22 04 04 6e 64   ck.....ft.....nd
+|   4064: 6f 6e 03 02 02 04 0a 07 05 01 03 00 10 03 03 0f   on..............
+|   4080: 0a 03 00 24 00 00 00 00 01 01 01 00 01 01 41 01   ...$..........A.
+| page 3 offset 8192
+|      0: 0a 00 00 00 01 0f fa 00 0f fa 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
+| page 4 offset 12288
+|      0: 0d 00 00 00 03 0f e0 00 0f f6 0f ec 0f e0 00 00   ................
+|   4064: 0a 03 03 00 1b 61 62 61 6e 64 6f 6e 08 02 03 00   .....abandon....
+|   4080: 17 61 62 61 66 74 08 01 03 00 17 61 62 61 63 6b   .abaft.....aback
+| page 5 offset 16384
+|      0: 0d 00 00 00 03 0f ee 00 0f fa 0f f4 0f ee 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 04 03   ................
+|   4080: 03 00 0e 01 04 02 03 00 0e 01 04 01 03 00 0e 01   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 7 offset 24576
+|      0: 0d 00 00 00 03 0f d6 00 0f f4 0f e1 0f d6 00 00   ................
+|   4048: 00 00 00 00 00 00 09 03 02 1b 72 65 62 75 69 6c   ..........rebuil
+|   4064: 64 11 02 02 2b 69 6e 74 65 67 72 69 74 79 2d 63   d...+integrity-c
+|   4080: 68 65 63 6b 0a 01 02 1d 6f 70 74 69 6d 69 7a 65   heck....optimize
+| end c17.db
+}]} {}
+
+do_catchsql_test 16.1 {
+INSERT INTO t1(t1) VALUES('integrity-check');
+} {1 {database disk image is malformed}}
+
+#--------------------------------------------------------------------------
+reset_db
+do_test 17.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 28672 pagesize 4096 filename c18.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 07   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 07 00 00 00 00   ................
+|     48: 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 00   ................
+|     96: 00 00 00 00 0d 00 00 00 07 0d d2 00 0f c4 0f 6d   ...............m
+|    112: 0f 02 0e ab 0e 4e 0d f6 0d d2 00 00 00 00 00 00   .....N..........
+|   3536: 00 00 22 07 06 17 11 11 01 31 74 61 62 6c 65 74   .........1tablet
+|   3552: 32 74 32 07 43 52 45 41 54 45 20 54 41 42 4c 45   2t2.CREATE TABLE
+|   3568: 20 74 32 28 78 29 56 06 06 17 1f 1f 01 7d 74 61    t2(x)V.......ta
+|   3584: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   blet1_configt1_c
+|   3600: 6f 6e 66 69 67 06 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
+|   3616: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
+|   3632: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
+|   3648: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 05    WITHOUT ROWID[.
+|   3664: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64   ..!!...tablet1_d
+|   3680: 6f 63 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65   ocsizet1_docsize
+|   3696: 05 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
+|   3712: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
+|   3728: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
+|   3744: 59 2c 20 73 7a 20 42 4c 4f 42 29 55 04 06 17 21   Y, sz BLOB)U...!
+|   3760: 21 01 77 74 61 62 6c 65 74 31 5f 63 6f 6e 74 65   !.wtablet1_conte
+|   3776: 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 04 43 52 45   ntt1_content.CRE
+|   3792: 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63 6f   ATE TABLE 't1_co
+|   3808: 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47 45   ntent'(id INTEGE
+|   3824: 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 63   R PRIMARY KEY, c
+|   3840: 30 29 69 03 07 17 19 19 01 81 2d 74 61 62 6c 65   0)i.......-table
+|   3856: 74 31 5f 69 64 78 74 31 5f 69 64 78 03 43 52 45   t1_idxt1_idx.CRE
+|   3872: 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 69 64   ATE TABLE 't1_id
+|   3888: 78 27 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20   x'(segid, term, 
+|   3904: 70 67 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45   pgno, PRIMARY KE
+|   3920: 59 28 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20   Y(segid, term)) 
+|   3936: 57 49 54 48 4f 55 54 20 52 4f 57 49 44 55 02 07   WITHOUT ROWIDU..
+|   3952: 17 1b 1b 01 81 01 74 61 62 6c 65 74 31 5f 64 61   ......tablet1_da
+|   3968: 74 61 74 31 5f 64 61 74 61 02 43 52 45 41 54 45   tat1_data.CREATE
+|   3984: 20 54 41 42 4c 45 20 27 74 31 5f 64 61 74 61 27    TABLE 't1_data'
+|   4000: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   (id INTEGER PRIM
+|   4016: 41 52 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42   ARY KEY, block B
+|   4032: 4c 4f 42 29 3a 01 06 17 11 11 08 63 74 61 62 6c   LOB):......ctabl
+|   4048: 65 74 31 74 31 43 52 45 41 54 45 20 56 49 52 54   et1t1CREATE VIRT
+|   4064: 55 41 4c 20 54 41 42 4c 45 20 74 31 20 55 53 49   UAL TABLE t1 USI
+|   4080: 4e 47 20 66 74 73 35 28 63 6f 6e 74 65 6e 74 29   NG fts5(content)
+| page 2 offset 4096
+|      0: 0d 00 00 00 03 0f bd 00 0f e8 0f ef 0f bd 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 00 00 00 00 00 24 84 80   .............$..
+|   4032: 80 80 80 01 03 00 4e 00 00 00 1e 06 30 61 62 61   ......N.....0aba
+|   4048: 63 6b 01 02 02 04 02 66 74 00 02 22 04 04 6e 64   ck.....ft.....nd
+|   4064: 6f 6e 03 02 02 04 0a 07 05 01 03 00 10 03 03 0f   on..............
+|   4080: 0a 03 00 24 00 00 0a aa aa aa aa aa aa aa aa aa   ...$............
+| page 3 offset 8192
+|      0: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa   ................
+|     16: aa aa aa aa aa aa aa aa 00 00 10 10 10 00 10 10   ................
+|     32: 10 10 a0 00 00 00 10 ff a0 00 ff 52 05 64 95 25   ...........R.d.%
+|     48: 45 54 14 c2 05 44 14 24 c4 52 07 43 12 05 55 34   ET...D.$.R.C..U4
+|     64: 94 e4 72 06 67 47 33 52 86 36 f6 e7 46 56 e7 42   ..r.gG3R.6..FV.B
+|     80: 90 d0 00 00 00 30 fb d0 00 fe 80 fe f0 fb 00 00   .....0..........
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
+| page 4 offset 12288
+|      0: 0d 00 00 00 03 0f e0 00 0f f6 0f ec 0f e0 00 00   ................
+|   4064: 0a 03 03 00 1b 61 62 61 6e 64 6f 6e 08 02 03 00   .....abandon....
+|   4080: 17 61 62 61 66 74 08 01 03 00 17 61 62 61 63 6b   .abaft.....aback
+| page 5 offset 16384
+|      0: 0d 00 00 00 03 0f ee 00 0f fa 0f f4 0f ee 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 04 03   ................
+|   4080: 03 00 0e 01 04 02 03 00 0e 01 04 01 03 00 0e 01   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 7 offset 24576
+|      0: 0d 00 00 00 03 0f d6 00 0f f4 0f e1 0f d6 00 00   ................
+|   4048: 00 00 00 00 00 00 09 03 02 1b 72 65 62 75 69 6c   ..........rebuil
+|   4064: 64 11 02 02 2b 69 6e 74 65 67 72 69 74 79 2d 63   d...+integrity-c
+|   4080: 68 65 63 6b 0a 01 02 1d 6f 70 74 69 6d 69 7a 65   heck....optimize
+| end c18.db
+}]} {}
+
+do_catchsql_test 17.1 {
+  SELECT * FROM t1 WHERE t1 MATCH 'abandon';
+} {1 {database disk image is malformed}}
+
+#--------------------------------------------------------------------------
+reset_db
+do_test 18.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 28672 pagesize 4096 filename c19b.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 01 00 00 00 07   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     48: 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 00   ................
+|     80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01   ................
+|     96: 00 2e 30 38 0d 00 00 00 07 0d d2 00 0f c4 0f 6d   ..08...........m
+|    112: 0f 02 0e ab 0e 4e 0d f6 0d d2 00 00 00 00 00 00   .....N..........
+|   3536: 00 00 22 07 06 17 11 11 01 31 74 61 62 6c 65 74   .........1tablet
+|   3552: 32 74 32 07 43 52 45 41 54 45 20 54 41 42 4c 45   2t2.CREATE TABLE
+|   3568: 20 74 32 28 78 29 56 06 06 17 1f 1f 01 7d 74 61    t2(x)V.......ta
+|   3584: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   blet1_configt1_c
+|   3600: 6f 6e 66 69 67 06 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
+|   3616: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
+|   3632: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
+|   3648: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 05    WITHOUT ROWID[.
+|   3664: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64   ..!!...tablet1_d
+|   3680: 6f 63 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65   ocsizet1_docsize
+|   3696: 05 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
+|   3712: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
+|   3728: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
+|   3744: 59 2c 20 73 7a 20 42 4c 4f 42 29 55 04 06 17 21   Y, sz BLOB)U...!
+|   3760: 21 01 77 74 61 62 6c 65 74 31 5f 63 6f 6e 74 65   !.wtablet1_conte
+|   3776: 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 04 43 52 45   ntt1_content.CRE
+|   3792: 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63 6f   ATE TABLE 't1_co
+|   3808: 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47 45   ntent'(id INTEGE
+|   3824: 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 63   R PRIMARY KEY, c
+|   3840: 30 29 69 03 07 17 19 19 01 81 2d 74 61 62 6c 65   0)i.......-table
+|   3856: 74 31 5f 69 64 78 74 31 5f 69 64 78 03 43 52 45   t1_idxt1_idx.CRE
+|   3872: 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 69 64   ATE TABLE 't1_id
+|   3888: 78 27 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20   x'(segid, term, 
+|   3904: 70 67 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45   pgno, PRIMARY KE
+|   3920: 59 28 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20   Y(segid, term)) 
+|   3936: 57 49 54 48 4f 55 54 20 52 4f 57 49 44 55 02 07   WITHOUT ROWIDU..
+|   3952: 17 1b 1b 01 81 01 74 61 62 6c 65 74 31 5f 64 61   ......tablet1_da
+|   3968: 74 61 74 31 5f 64 61 74 61 02 43 52 45 41 54 45   tat1_data.CREATE
+|   3984: 20 54 41 42 4c 45 20 27 74 31 5f 64 61 74 61 27    TABLE 't1_data'
+|   4000: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   (id INTEGER PRIM
+|   4016: 41 52 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42   ARY KEY, block B
+|   4032: 4c 4f 42 29 3a 01 06 17 11 11 08 63 74 61 62 6c   LOB):......ctabl
+|   4048: 65 74 31 74 31 43 52 45 41 54 45 20 56 49 52 54   et1t1CREATE VIRT
+|   4064: 55 41 4c 20 54 41 42 4c 45 20 74 31 20 55 53 49   UAL TABLE t1 USI
+|   4080: 4e 47 20 66 74 73 35 28 63 6f 6e 74 65 6e 74 29   NG fts5(content)
+| page 2 offset 4096
+|      0: 0d 09 a6 00 06 09 22 00 0f e8 09 22 0f bd 0f 2c   ...............,
+|     16: 09 bd 09 3c 00 00 00 00 00 00 00 00 00 00 00 00   ...<............
+|   2336: 00 00 18 0a 03 00 36 00 00 00 00 01 04 04 00 04   ......6.........
+|   2352: 01 01 01 02 01 01 03 01 01 04 01 01 63 90 80 80   ............c...
+|   2368: 80 80 01 04 00 81 4a 00 00 00 56 06 30 61 62 61   ......J...V.0aba
+|   2384: 63 6b 08 01 04 04 6e 64 6f 6e 03 01 05 01 02 05   ck....ndon......
+|   2400: 63 74 69 76 65 08 01 02 04 6c 70 68 61 08 01 02   ctive....lpha...
+|   2416: 03 74 6f 6d 08 01 01 06 62 61 63 6b 75 70 08 01   .tom....backup..
+|   2432: 01 0c 63 68 61 6e 6e 65 62 6f 6f 6d 65 72 08 01   ..channeboomer..
+|   2448: 07 01 6c 08 01 01 04 74 65 73 74 08 01 04 09 0a   ..l....test.....
+|   2464: 09 08 07 0a 10 05 0f 18 00 17 30 00 00 00 00 01   ..........0.....
+|   2480: 03 03 00 03 01 01 01 02 01 01 03 01 01 8a 53 8c   ..............S.
+|   2496: 80 80 80 80 01 04 00 95 2a 00 00 05 35 0d 30 30   ........*...5.00
+|   2512: 31 30 66 66 61 30 30 30 66 66 61 05 02 1c 02 49   10ffa000ffa....I
+|   2528: 33 34 33 35 32 34 35 34 31 35 34 34 35 32 30 35   3435245415445205
+|   2544: 34 34 31 34 32 34 63 34 35 32 30 32 37 37 34 33   441424c452027743
+|   2560: 31 35 66 36 39 36 34 37 38 32 37 32 38 37 33 36   15f6964782728736
+|   2576: 35 36 37 36 39 36 34 32 63 32 30 37 34 36 35 37   56769642c2074657
+|   2592: 32 36 64 32 63 32 30 37 30 05 02 12 02 3b 36 31   26d2c2070....;61
+|   2608: 37 32 31 32 31 30 31 37 37 37 34 36 31 36 32 35   7212101777461625
+|   2624: 63 36 35 37 34 33 31 35 66 36 33 36 66 36 65 37   c6574315f636f6e7
+|   2640: 34 36 35 36 65 37 34 37 34 33 31 35 66 36 33 36   4656e7474315f636
+|   2656: 66 36 65 37 34 36 35 36 65 05 04 07 07 01 04 31   f6e74656e......1
+|   2672: 66 62 64 05 02 19 01 44 32 34 38 34 38 30 38 30   fbd....D24848080
+|   2688: 38 30 38 30 30 31 30 33 30 30 34 65 30 30 30 30   80800103004e0000
+|   2704: 30 30 31 65 30 36 33 30 36 31 36 32 36 31 36 33   001e063061626163
+|   2720: 36 62 30 31 30 32 30 32 30 34 30 32 36 36 37 34   6b01020204026674
+|   2736: 30 32 30 32 30 32 30 34 30 34 36 65 05 02 1a 02   02020204046e....
+|   2752: 03 66 65 72 05 02 1d 01 28 33 65 37 34 36 35 36   .fer....(3e74656
+|   2768: 65 37 34 32 39 30 64 30 30 30 30 30 30 30 33 30   e74290d000000030
+|   2784: 66 62 64 30 30 30 66 65 38 30 66 65 66 30 66 62   fbd000fe80fef0fb
+|   2800: 64 05 02 18 01 4a 34 31 35 32 35 39 32 30 34 62   d....J415259204b
+|   2816: 34 35 35 39 32 63 32 30 36 32 36 63 36 66 36 33   45592c20626c6f63
+|   2832: 36 62 32 30 34 32 34 63 34 66 34 32 32 39 33 61   6b20424c4f42293a
+|   2848: 30 31 30 36 31 37 31 31 31 31 30 38 36 33 37 34   0106171111086374
+|   2864: 36 31 36 32 36 63 36 35 37 34 33 31 37 34 33 31   61626c6574317431
+|   2880: 05 02 16 02 49 33 35 32 34 35 34 31 35 34 34 35   ....I35245415445
+|   2896: 32 30 35 36 34 39 35 32 35 34 35 35 34 31 34 63   205649525455414c
+|   2912: 32 30 35 34 34 31 34 32 34 63 34 35 32 30 37 34   205441424c452074
+|   2928: 33 31 6f 30 35 35 35 33 34 39 34 65 34 37 32 30   31o05553494e4720
+|   2944: 36 36 37 34 37 33 33 35 32 38 36 33 36 66 05 02   6674733528636f..
+|   2960: 17 02 49 35 32 30 35 34 34 31 34 32 34 63 34 35   ..I5205441424c45
+|   2976: 32 30 32 37 37 34 33 31 35 66 36 33 36 66 36 65   202774315f636f6e
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+|   3888: 80 80 80 01 04 00 82 16 00 00 00 79 06 30 61 62   ...........y.0ab
+|   3904: 61 63 6b 08 02 07 04 04 6e 64 6f 6e 08 02 05 02   ack.....ndon....
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+|   4000: 02 08 07 01 6c 08 02 03 01 04 74 65 73 74 08 02   ....l.....test..
+|   4016: 06 04 0a 09 0d 0a 08 07 07 0b 0a 11 06 24 84 80   .............$..
+|   4032: 80 80 80 01 03 00 4e 00 00 00 1e 06 30 61 62 61   ......N.....0aba
+|   4048: 63 6b 01 08 02 04 02 66 74 00 02 22 04 04 6e 64   ck.....ft.....nd
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+| page 3 offset 8192
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+| page 4 offset 12288
+|      0: 0d 0f 68 00 06 08 98 00 0f f6 0f ec 0f d5 08 98   ..h.............
+|     16: 0f c1 0f b6 0f 68 0f 68 00 00 00 00 00 00 00 00   .....h.h........
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+|   2208: 65 61 6d 65 72 20 62 75 6d 6d 32 34 63 34 35 32   eamer bumm24c452
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+|   3936: 72 20 62 61 63 6b 75 70 0f ca 00 4e 81 1d 61 6c   r backup...N..al
+|   3952: 70 68 61 20 63 68 61 6e 6e 65 6c 20 c2 af 62 61   pha channel ..ba
+|   3968: 63 6b 75 70 20 61 62 61 6e 64 6f 6e 20 74 65 73   ckup abandon tes
+|   3984: 74 20 61 62 61 63 6b 20 63 68 61 6e 6e 65 62 6f   t aback channebo
+|   4000: 6f 6d 65 72 20 61 74 6f 6d 20 61 6c 70 68 61 20   omer atom alpha 
+|   4016: 61 63 74 69 76 65 09 07 03 00 19 61 74 6f 6d 69   active.....atomi
+|   4032: 63 07 06 03 00 15 61 74 6b 6d 0f e0 00 0b 19 62   c.....atkm.....b
+|   4048: 6f 6f 6d 65 72 09 04 03 00 19 61 63 74 69 76 65   oomer.....active
+|   4064: 00 00 00 0c 1b 61 62 61 6e 64 6f 6e 08 02 03 00   .....abandon....
+|   4080: 17 61 66 21 66 74 08 01 03 00 17 61 62 61 63 6b   .af!ft.....aback
+| page 5 offset 16384
+|      0: 0d 0f ee 00 06 0f d6 00 0f fa 0f f4 0f e8 0f e2   ................
+|     16: 0f dc 0f d6 0f d0 0f d0 00 00 00 00 00 00 00 00   ................
+|   4048: 0f ee 00 06 0e 0a 04 07 03 00 0e 01 04 06 03 00   ................
+|   4064: 0e 01 04 05 03 00 0e 1d 04 04 03 00 0e 01 00 00   ................
+|   4080: 00 06 0e 01 04 02 03 00 0e 01 04 01 03 00 0e 01   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 7 offset 24576
+|      0: 0d 00 00 00 03 0f d6 00 0f f4 0f e1 0f d6 00 00   ................
+|   4048: 00 00 00 00 00 00 09 03 02 1b 72 65 62 75 69 6c   ..........rebuil
+|   4064: 64 11 02 02 2b 69 6e 74 65 67 72 69 74 79 2d 63   d...+integrity-c
+|   4080: 68 65 63 6b 0a 01 02 1d 6f 70 74 69 6d 69 7a 65   heck....optimize
+| end c19b.db
+}]} {}
+
+do_catchsql_test 18.1 {
+  INSERT INTO t1(t1) VALUES('optimize');
+} {1 {database disk image is malformed}}
+
+#--------------------------------------------------------------------------
+reset_db
+do_test 19.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 28672 pagesize 4096 filename c20b.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 01 00 00 00 07   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     48: 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 00   ................
+|     80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01   ................
+|     96: 00 2e 30 38 0d 00 00 00 07 0d d2 00 0f c4 0f 6d   ..08...........m
+|    112: 0f 02 0e ab 0e 4e 0d f6 0d d2 00 00 00 00 00 00   .....N..........
+|   3536: 00 00 22 07 06 17 11 11 01 31 74 61 62 6c 65 74   .........1tablet
+|   3552: 32 74 32 07 43 52 45 41 54 45 20 54 41 42 4c 45   2t2.CREATE TABLE
+|   3568: 20 74 32 28 78 29 56 06 06 17 1f 1f 01 7d 74 61    t2(x)V.......ta
+|   3584: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   blet1_configt1_c
+|   3600: 6f 6e 66 69 67 06 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
+|   3616: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
+|   3632: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
+|   3648: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 05    WITHOUT ROWID[.
+|   3664: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64   ..!!...tablet1_d
+|   3680: 6f 63 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65   ocsizet1_docsize
+|   3696: 05 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
+|   3712: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
+|   3728: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
+|   3744: 59 2c 20 73 7a 20 42 4c 4f 42 29 55 04 06 17 21   Y, sz BLOB)U...!
+|   3760: 21 01 77 74 61 62 6c 65 74 31 5f 63 6f 6e 74 65   !.wtablet1_conte
+|   3776: 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 04 43 52 45   ntt1_content.CRE
+|   3792: 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63 6f   ATE TABLE 't1_co
+|   3808: 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47 45   ntent'(id INTEGE
+|   3824: 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 63   R PRIMARY KEY, c
+|   3840: 30 29 69 03 07 17 19 19 01 81 2d 74 61 62 6c 65   0)i.......-table
+|   3856: 74 31 5f 69 64 78 74 31 5f 69 64 78 03 43 52 45   t1_idxt1_idx.CRE
+|   3872: 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 69 64   ATE TABLE 't1_id
+|   3888: 78 27 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20   x'(segid, term, 
+|   3904: 70 67 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45   pgno, PRIMARY KE
+|   3920: 59 28 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20   Y(segid, term)) 
+|   3936: 57 49 54 48 4f 55 54 20 52 4f 57 49 44 55 02 07   WITHOUT ROWIDU..
+|   3952: 17 1b 1b 01 81 01 74 61 62 6c 65 74 31 5f 64 61   ......tablet1_da
+|   3968: 74 61 74 31 5f 64 61 74 61 02 43 52 45 41 54 45   tat1_data.CREATE
+|   3984: 20 54 41 42 4c 45 20 27 74 31 5f 64 61 74 61 27    TABLE 't1_data'
+|   4000: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   (id INTEGER PRIM
+|   4016: 41 52 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42   ARY KEY, block B
+|   4032: 4c 4f 42 29 3a 01 06 17 11 11 08 63 74 61 62 6c   LOB):......ctabl
+|   4048: 65 74 31 74 31 43 52 45 41 54 45 20 56 49 52 54   et1t1CREATE VIRT
+|   4064: 55 41 4c 20 54 41 42 4c 45 20 74 31 20 55 53 49   UAL TABLE t1 USI
+|   4080: 4e 47 20 66 74 73 35 28 63 6f 6e 74 65 6e 74 29   NG fts5(content)
+| page 2 offset 4096
+|      0: 0d 0f 20 00 05 0e a0 00 0f e8 0e a0 0f bd 0f 34   .. ............4
+|     16: 0e b7 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   3744: 15 0a 03 00 30 00 00 00 00 01 03 03 00 03 01 01   ....0...........
+|   3760: 01 02 01 01 03 01 01 62 8c 80 80 80 80 01 04 00   .......b........
+|   3776: 81 48 00 00 00 55 06 30 61 62 61 63 6b 08 01 04   .H...U.0aback...
+|   3792: 04 6e 64 6f 6e 03 01 05 01 02 05 63 74 69 76 65   .ndon......ctive
+|   3808: 08 01 02 04 6c 70 68 61 08 01 02 03 74 6f 6d 08   ....lpha....tom.
+|   3824: 01 01 06 62 61 63 6b 75 70 08 01 02 05 6f 6f 6d   ...backup....oom
+|   3840: 65 72 08 01 01 07 63 68 61 6e 6e 65 6c 08 01 01   er....channel...
+|   3856: 04 74 65 73 74 08 01 04 09 0a 09 08 07 0a 09 0b   .test...........
+|   3872: 0f ef 00 14 2a 00 00 00 00 01 02 02 00 02 01 01   ....*...........
+|   3888: 01 02 01 01 81 01 88 80 80 80 80 01 04 00 82 06   ................
+|   3904: 00 00 00 72 06 30 61 62 61 63 6b 08 02 07 04 04   ...r.0aback.....
+|   3920: 6e 64 6f 6e 08 02 05 02 05 63 74 69 76 65 04 02   ndon.....ctive..
+|   3936: 02 04 02 0b 02 04 6c 70 68 61 08 04 02 0a 02 03   ......lpha......
+|   3952: 74 6f 6d 06 02 02 02 02 09 05 02 69 63 07 02 02   tom........ic...
+|   3968: 01 06 62 61 63 6b 75 70 08 02 04 02 05 6f 6f 66   ..backup.....oof
+|   3984: 65 72 05 02 02 04 03 6d 65 72 08 02 08 01 07 63   er.....mer.....c
+|   4000: 68 61 6e 6e 65 6c 08 02 03 01 04 74 65 73 74 08   hannel.....test.
+|   4016: 02 06 04 0a 09 0d 0a 0b 07 0b 0a 08 0c 24 84 80   .............$..
+|   4032: 80 80 80 01 03 00 4e 00 00 00 1e 06 30 61 62 61   ......N.....0aba
+|   4048: 63 6b 01 02 66 04 00 22 74 00 02 22 04 04 6e 64   ck..f...t.....nd
+|   4064: 6f 6e 03 02 02 04 0a 07 05 01 03 00 10 06 06 00   on..............
+|   4080: 00 00 11 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 3 offset 8192
+|      0: 0a 00 00 00 03 0f ec 00 0f fa 0f f3 0f ec 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 00 06 04 01 0c   ................
+|   4080: 01 03 02 06 04 01 0c 01 02 02 05 04 09 0c 01 02   ................
+| page 4 offset 12288
+|      0: 0d 0f e0 00 06 0f b6 00 0f f6 0f ec 0f d5 0f ca   ................
+|     16: 0f c1 0f b6 0f 70 0f 70 00 00 00 00 00 00 00 00   .....p.p........
+|   3952: 0f e0 00 46 81 0d 61 6c 70 68 61 20 63 68 61 6e   ...F..alpha chan
+|   3968: 6e 65 6c 20 62 61 63 6b 75 70 20 61 62 61 6e 64   nel backup aband
+|   3984: 6f 6e 20 74 65 73 74 20 61 62 61 63 6b 20 62 6f   on test aback bo
+|   4000: 6f 6d 65 72 20 61 74 6f 6d 20 61 6c 70 68 61 20   omer atom alpha 
+|   4016: 61 63 74 69 76 65 09 07 03 00 19 61 74 6f 6d 69   active.....atomi
+|   4032: 63 07 06 03 00 15 61 74 6f 6d 09 05 03 00 19 62   c.....atom.....b
+|   4048: 6f 6f 66 65 72 09 04 03 00 19 61 63 74 69 76 65   oofer.....active
+|   4064: 00 00 00 0c 1b 61 62 61 6e 64 6f 6e 08 02 03 00   .....abandon....
+|   4080: 17 61 62 61 66 74 08 01 03 00 17 61 62 61 63 6b   .abaft.....aback
+| page 5 offset 16384
+|      0: 0d 0f ee 00 06 0f d6 00 0f fa 0f f4 0f e8 0f e2   ................
+|     16: 0f dc 0f d6 0f d0 0f d0 00 00 00 00 00 00 00 00   ................
+|   4048: 0f ee 00 06 0e 0a 04 07 03 00 0e 01 04 06 03 00   ................
+|   4064: 0e 01 04 05 03 00 0e 01 04 04 03 00 0e 01 00 00   ................
+|   4080: 00 06 0e 01 04 02 03 00 0e 01 04 01 03 00 0e 01   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 7 offset 24576
+|      0: 0d 00 00 00 03 0f d6 00 0f f4 0f e1 0f d6 00 00   ................
+|   4048: 00 00 00 00 00 00 09 03 02 1b 72 65 62 75 69 6c   ..........rebuil
+|   4064: 64 11 02 02 2b 69 6e 74 65 67 72 69 74 79 2d 63   d...+integrity-c
+|   4080: 86 65 63 6b 0a 01 02 1d 6f 70 74 69 6d 69 7a 65   .eck....optimize
+| end c20b.db
+}]} {}
+
+do_catchsql_test 19.1 {
+  INSERT INTO t1(t1) VALUES('optimize');
+} {1 {database disk image is malformed}}
+
+#--------------------------------------------------------------------------
+reset_db
+do_test 20.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 28672 pagesize 4096 filename crash-cf347c523f793c.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 07   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 07 00 00 00 00   ................
+|     48: 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 00   ................
+|     96: 00 00 00 00 0d 00 00 00 07 0d d2 00 0f c4 0f 6d   ...............m
+|    112: 0f 02 0e ab 0e 4e 0d f6 0d d2 00 00 00 00 00 00   .....N..........
+|   3536: 00 00 22 07 06 17 11 11 01 31 74 61 62 6c 65 74   .........1tablet
+|   3552: 32 74 32 07 43 52 45 41 54 45 20 54 41 42 4c 45   2t2.CREATE TABLE
+|   3568: 20 74 32 28 78 29 56 06 06 17 1f 1f 01 7d 74 61    t2(x)V.......ta
+|   3584: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   blet1_configt1_c
+|   3600: 6f 6e 66 69 67 06 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
+|   3616: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
+|   3632: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
+|   3648: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 05    WITHOUT ROWID[.
+|   3664: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64   ..!!...tablet1_d
+|   3680: 6f 63 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65   ocsizet1_docsize
+|   3696: 05 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
+|   3712: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
+|   3728: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
+|   3744: 59 2c 20 73 7a 20 42 4c 4f 42 29 55 04 06 17 21   Y, sz BLOB)U...!
+|   3760: 21 01 77 74 61 62 6c 65 74 31 5f 63 6f 6e 74 65   !.wtablet1_conte
+|   3776: 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 04 43 52 45   ntt1_content.CRE
+|   3792: 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63 6f   ATE TABLE 't1_co
+|   3808: 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47 45   ntent'(id INTEGE
+|   3824: 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 63   R PRIMARY KEY, c
+|   3840: 30 29 69 03 07 17 19 19 01 81 2d 74 61 62 6c 65   0)i.......-table
+|   3856: 74 31 5f 69 64 78 74 31 5f 69 64 78 03 43 52 45   t1_idxt1_idx.CRE
+|   3872: 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 69 64   ATE TABLE 't1_id
+|   3888: 78 27 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20   x'(segid, term, 
+|   3904: 70 67 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45   pgno, PRIMARY KE
+|   3920: 59 28 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20   Y(segid, term)) 
+|   3936: 57 49 54 48 4f 55 54 20 52 4f 57 49 44 55 02 07   WITHOUT ROWIDU..
+|   3952: 17 1b 1b 01 81 01 74 61 62 6c 65 74 31 5f 64 61   ......tablet1_da
+|   3968: 74 61 74 31 5f 64 61 74 61 02 43 52 45 41 54 45   tat1_data.CREATE
+|   3984: 20 54 41 42 4c 45 20 27 74 31 5f 64 61 74 61 27    TABLE 't1_data'
+|   4000: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   (id INTEGER PRIM
+|   4016: 41 52 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42   ARY KEY, block B
+|   4032: 4c 4f 42 29 3a 01 06 17 11 11 08 63 74 61 62 6c   LOB):......ctabl
+|   4048: 65 74 31 74 31 43 52 45 41 54 45 20 56 49 52 54   et1t1CREATE VIRT
+|   4064: 55 41 4c 20 54 41 42 4c 45 20 74 31 20 55 53 49   UAL TABLE t1 USI
+|   4080: 4e 47 20 66 74 73 35 28 63 6f 6e 74 65 6e 74 29   NG fts5(content)
+| page 2 offset 4096
+|      0: 0d 00 00 00 03 0f bd 00 0f e8 0f ef 0f bd 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 00 00 00 00 00 24 84 80   .............$..
+|   4032: 80 80 80 01 03 00 4e 00 00 00 1e 06 30 61 62 61   ......N.....0aba
+|   4048: 63 6b 01 02 02 04 02 66 74 02 02 02 04 04 6e 64   ck.....ft.....nd
+|   4064: 6f 6e 03 02 02 04 0a 07 05 01 03 00 10 03 03 0f   on..............
+|   4080: 0a 03 00 24 00 00 00 0e ee ee ee ee ee ee ee ee   ...$............
+| page 3 offset 8192
+|      0: ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee   ................
+|     16: ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee   ................
+|     32: ee ee ee ee ee ee ee ee ee ee ee ee 00 10 10 10   ................
+|     48: 00 10 10 10 10 a0 00 00 00 10 ff a0 00 ff 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
+| page 4 offset 12288
+|      0: 0d 00 00 00 03 0f e0 00 0f f6 0f ec 0f e0 00 00   ................
+|   4064: 0a 03 03 00 1b 61 62 61 6e 64 6f 6e 08 02 03 00   .....abandon....
+|   4080: 17 61 62 61 66 74 08 01 03 00 17 61 62 61 63 6b   .abaft.....aback
+| page 5 offset 16384
+|      0: 0d 00 00 00 03 0f ee 00 0f fa 0f f4 0f ee 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 04 03   ................
+|   4080: 03 00 0e 01 04 02 03 00 0e 01 04 01 03 00 0e 01   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 7 offset 24576
+|      0: 0d 00 00 00 03 0f d6 00 0f f4 0f e1 0f d6 00 00   ................
+|   4048: 00 00 00 00 00 00 09 03 02 1b 72 65 62 75 69 6c   ..........rebuil
+|   4064: 64 11 02 02 2b 69 6e 74 65 67 72 69 74 79 2d 63   d...+integrity-c
+|   4080: 68 65 63 6b 0a 01 02 1d 6f 70 74 69 6d 69 7a 65   heck....optimize
+| end crash-cf347c523f793c.db
+}]} {}
+
+do_catchsql_test 20.1 {
+  SELECT * FROM t1 WHERE t1 MATCH 'abandon';
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 21.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 28672 pagesize 4096 filename c22b.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 01 00 00 00 07   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     48: 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 00   ................
+|     80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01   ................
+|     96: 00 2e 30 38 0d 00 00 00 07 0d d2 00 0f c4 0f 6d   ..08...........m
+|    112: 0f 02 0e ab 0e 4e 0d f6 0d d2 00 00 00 00 00 00   .....N..........
+|   3536: 00 00 22 07 06 17 11 11 01 31 74 61 62 6c 65 74   .........1tablet
+|   3552: 32 74 32 07 43 52 45 41 54 45 20 54 41 42 4c 45   2t2.CREATE TABLE
+|   3568: 20 74 32 28 78 29 56 06 06 17 1f 1f 01 7d 74 61    t2(x)V.......ta
+|   3584: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   blet1_configt1_c
+|   3600: 6f 6e 66 69 67 06 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
+|   3616: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
+|   3632: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
+|   3648: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 05    WITHOUT ROWID[.
+|   3664: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64   ..!!...tablet1_d
+|   3680: 6f 63 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65   ocsizet1_docsize
+|   3696: 05 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
+|   3712: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
+|   3728: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
+|   3744: 59 2c 20 73 7a 20 42 4c 4f 42 29 55 04 06 17 21   Y, sz BLOB)U...!
+|   3760: 21 01 77 74 61 62 6c 65 74 31 5f 63 6f 6e 74 65   !.wtablet1_conte
+|   3776: 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 04 43 52 45   ntt1_content.CRE
+|   3792: 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63 6f   ATE TABLE 't1_co
+|   3808: 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47 45   ntent'(id INTEGE
+|   3824: 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 63   R PRIMARY KEY, c
+|   3840: 30 29 69 03 07 17 19 19 01 81 2d 74 61 62 6c 65   0)i.......-table
+|   3856: 74 31 5f 69 64 78 74 31 5f 69 64 78 03 43 52 45   t1_idxt1_idx.CRE
+|   3872: 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 69 64   ATE TABLE 't1_id
+|   3888: 78 27 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20   x'(segid, term, 
+|   3904: 70 67 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45   pgno, PRIMARY KE
+|   3920: 59 28 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20   Y(segid, term)) 
+|   3936: 57 49 54 48 4f 55 54 20 52 4f 57 49 44 55 02 07   WITHOUT ROWIDU..
+|   3952: 17 1b 1b 01 81 01 74 61 62 6c 65 74 31 5f 64 61   ......tablet1_da
+|   3968: 74 61 74 31 5f 64 61 74 61 02 43 52 45 41 54 45   tat1_data.CREATE
+|   3984: 20 54 41 42 4c 45 20 27 74 31 5f 64 61 74 61 27    TABLE 't1_data'
+|   4000: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   (id INTEGER PRIM
+|   4016: 41 52 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42   ARY KEY, block B
+|   4032: 4c 4f 42 29 3a 01 06 17 11 11 08 63 74 61 62 6c   LOB):......ctabl
+|   4048: 65 74 31 74 31 43 52 45 41 54 45 20 56 49 52 54   et1t1CREATE VIRT
+|   4064: 55 41 4c 20 54 41 42 4c 45 20 74 31 20 55 53 49   UAL TABLE t1 USI
+|   4080: 4e 47 20 66 74 73 35 28 63 6f 6e 74 65 6e 74 29   NG fts5(content)
+| page 2 offset 4096
+|      0: 0d 0e 8e 00 06 0e 2f 00 0f e8 0e 2f 0f bd 0f 3b   ....../..../...;
+|     16: 0e a5 0e 49 00 00 00 00 00 00 00 00 00 00 00 00   ...I............
+|   3616: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 18   ................
+|   3632: 0a 03 00 36 00 00 00 00 01 04 04 00 04 01 01 01   ...6............
+|   3648: 02 01 01 03 01 01 04 01 01 3e 90 80 80 80 80 01   .........>......
+|   3664: 04 00 81 00 00 00 00 36 06 30 62 61 63 6b 75 05   .......6.0backu.
+|   3680: 02 04 05 02 04 02 05 65 61 6d 65 72 05 02 02 05   .......eamer....
+|   3696: 02 02 02 05 6f 6f 6d 65 72 05 01 05 01 02 05 75   ....oomer......u
+|   3712: 6d 6d 65 72 05 02 03 05 02 03 04 0d 0d 0b 0f 27   mmer...........'
+|   3728: 00 17 30 00 00 00 00 01 03 03 00 03 01 01 01 02   ..0.............
+|   3744: 01 01 03 01 01 7b 8c 80 80 80 80 01 04 00 81 7a   ...............z
+|   3760: 00 00 00 6d 06 30 61 62 61 63 6b 0d 02 07 04 04   ...m.0aback.....
+|   3776: 6e 64 6f 6e 0d 02 05 02 05 63 74 69 76 65 09 02   ndon.....ctive..
+|   3792: 02 04 02 0b 02 04 6c 70 68 61 0d 04 02 0a 02 03   ......lpha......
+|   3808: 74 6f 6d 0b 02 02 02 02 09 05 02 69 63 0c 02 02   tom........ic...
+|   3824: 01 06 62 61 63 6b 75 70 0d 02 04 02 05 6f 6f 6d   ..backup.....oom
+|   3840: 65 72 0a 02 02 03 02 08 01 07 63 68 61 6e 6e 65   er........channe
+|   3856: 6c 0d 02 03 01 04 74 65 73 74 0d 02 06 04 0a 09   l.....test......
+|   3872: 0d 0a 0b 07 0b 0d 0c 0f ef 00 14 2a 00 00 00 00   ...........*....
+|   3888: 01 02 02 00 02 01 01 01 02 01 01 7b 88 80 80 80   ................
+|   3904: 80 01 04 00 81 7a 00 00 00 6d 06 30 61 62 61 63   .....z...m.0abac
+|   3920: 6b 08 02 07 04 04 6e 64 6f 6e 08 02 05 02 05 63   k.....ndon.....c
+|   3936: 74 69 76 65 04 02 02 04 02 0b 02 04 6c 70 68 61   tive........lpha
+|   3952: 08 04 02 0a 02 03 74 6f 6d 06 02 02 02 02 09 05   ......tom.......
+|   3968: 02 69 63 07 02 02 01 06 62 61 63 6b 75 70 08 02   .ic.....backup..
+|   3984: 04 02 05 6f 6f 6d 65 72 05 02 02 03 02 08 01 07   ...oomer........
+|   4000: 63 68 61 6e 6e 65 6c 08 02 03 01 04 74 65 73 74   channel.....test
+|   4016: 08 02 06 04 0a 09 0d 0a 0b 07 0b 0d 0c 24 84 80   .............$..
+|   4032: 80 80 80 01 03 00 4e 00 00 00 1e 06 30 61 62 61   ......N.....0aba
+|   4048: 63 6b 01 02 02 04 02 66 74 00 02 22 04 04 6e 64   ck.....ft.....nd
+|   4064: 6f 6e 03 02 02 08 0a 07 05 01 03 00 10 0d 23 00   on............#.
+|   4080: 00 00 11 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 3 offset 8192
+|      0: 0a 00 00 00 04 0f e5 00 0f fa 0f f3 0f ec 0f e5   ................
+|   4064: 00 00 00 00 00 06 04 01 0c 01 04 02 06 04 01 0c   ................
+|   4080: 01 03 02 06 04 01 0c 01 02 02 05 04 09 0c 01 02   ................
+| page 4 offset 12288
+|      0: 0d 0f 5a 00 0d 0e ce 00 0f f6 0f ec 0f e0 0f d5   ..Z.............
+|     16: 0e e7 0f c1 0f b6 0f 70 0f 65 0e ce 0f 51 0f 46   .......p.e...Q.F
+|     32: 0f 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   3776: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 17 0a   ................
+|   3792: 03 00 35 62 65 61 6d 65 72 20 62 75 6d 6d 65 72   ..5beamer bummer
+|   3808: 20 62 61 63 6b 75 29 17 05 03 00 35 62 65 61 6d    backu)....5beam
+|   3824: 65 72 20 62 75 6d 6d 65 72 20 62 61 63 6b 75 29   er bummer backu)
+|   3840: 44 0d 04 00 81 0d 61 6c 70 68 61 20 63 68 61 6e   D.....alpha chan
+|   3856: 6e 65 6c 20 62 61 63 6b 75 70 20 61 62 61 6e 64   nel backup aband
+|   3872: 6f 6e 20 74 65 73 74 20 61 62 61 63 6b 20 62 6f   on test aback bo
+|   3888: 6f 6d 65 72 20 61 74 6f 6d 20 61 6c 70 68 61 20   omer atom alpha 
+|   3904: 61 63 74 69 76 65 09 0c 03 00 19 61 74 6f 6d 69   active.....atomi
+|   3920: 63 07 0b 03 00 15 61 74 6f 6d 0f ca 00 0b 19 62   c.....atom.....b
+|   3936: 6f 6f 6d 65 72 09 09 03 00 19 61 63 74 69 76 65   oomer.....active
+|   3952: 44 08 04 00 81 0d 61 6c 70 68 61 20 63 68 61 6e   D.....alpha chan
+|   3968: 6e 65 6c 20 62 61 63 6b 75 70 20 61 62 61 6e 64   nel backup aband
+|   3984: 6f 6e 20 74 65 73 74 20 61 62 61 63 6b 20 62 6f   on test aback bo
+|   4000: 6f 6d 65 72 20 61 74 6f 6d 20 61 6c 70 68 61 20   omer atom alpha 
+|   4016: 61 63 74 69 76 65 09 07 03 00 19 61 74 6f 6d 69   active.....atomi
+|   4032: 63 07 06 03 00 15 61 74 6f 6d 00 00 00 0b 19 62   c.....atom.....b
+|   4048: 6f 6f 6d 65 72 09 04 03 00 19 61 63 74 69 76 65   oomer.....active
+|   4064: 0a 03 03 00 1b 61 62 61 6e 64 6f 6e 08 02 03 00   .....abandon....
+|   4080: 17 61 62 61 66 74 08 01 03 00 17 61 62 61 63 6b   .abaft.....aback
+| page 5 offset 16384
+|      0: 0d 00 00 00 0d 0f b2 00 0f fa 0f f4 0f ee 0f e8   ................
+|     16: 0f e2 0f dc 0f d6 0f d0 0f ca 0f c4 0f be 0f b8   ................
+|     32: 0f b2 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4016: 00 00 04 0d 03 00 0e 0a 04 0c 03 00 0e 01 04 0b   ................
+|   4032: 03 00 0e 01 04 0a 03 00 0e 03 04 09 03 00 0e 01   ................
+|   4048: 04 08 03 00 0e 0a 04 07 03 00 0e 01 04 06 03 00   ................
+|   4064: 0e 01 04 05 03 00 0e 03 04 04 03 00 0e 01 04 03   ................
+|   4080: 03 00 0e 01 04 02 03 00 0e 01 04 01 03 00 0e 01   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 7 offset 24576
+|      0: 0d 00 00 00 03 0f d6 00 0f f4 0f e1 0f d6 00 00   ................
+|   4048: 00 00 00 00 00 00 09 03 02 1b 72 65 62 75 69 6c   ..........rebuil
+|   4064: 64 11 02 02 2b 69 6e 74 65 67 72 69 74 79 2d 63   d...+integrity-c
+|   4080: 68 65 63 6b 0a 01 02 1d 6f 70 74 69 6d 69 7a 65   heck....optimize
+| end c22b.db
+}]} {}
+
+do_catchsql_test 21.1 {
+  DELETE FROM t1 WHERE t1 MATCH 'ab*ndon';
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_test 22.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 28672 pagesize 4096 filename c22b.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 02 00 00 00 07   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 02 00 00 00 00   ................
+|     48: 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 00   ................
+|     80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 02   ................
+|     96: 00 2e 30 38 0d 00 00 00 07 0d d2 00 0f c4 0f 6d   ..08...........m
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+|   3344: 35 35 32 32 30 35 30 35 32 34 39 34 64 0a 34 31   552205052494d.41
+|   3360: 35 32 35 39 32 30 34 62 34 35 35 39 32 63 32 30   5259204b45592c20
+|   3376: 36 32 36 63 36 66 36 33 36 62 32 30 34 32 34 63   626c6f636b20424c
+|   3392: 34 66 34 32 32 39 33 61 30 31 30 36 31 37 31 31   4f42293a01061711
+|   3408: 31 31 30 38 36 33 37 34 36 31 36 32 36 63 36 35   1108637461626c65
+|   3424: 37 34 33 31 37 34 33 31 0a 34 33 35 32 34 35 34   74317431.4352454
+|   3440: 31 35 34 34 35 32 30 35 36 34 39 35 32 35 34 37   1544520564952547
+|   3456: 35 34 31 34 63 32 30 35 34 34 31 34 32 34 63 34   5414c205441424c4
+|   3472: 35 32 30 37 34 33 31 32 30 35 35 35 33 34 39 34   5207431205553494
+|   3488: 65 34 37 32 30 36 36 37 34 37 3b 33 35 32 38 36   e472066747;35286
+|   3504: 33 36 66 0a 36 65 37 34 36 35 36 65 37 34 32 39   36f.6e74656e7429
+|   3520: 30 64 30 30 30 30 30 30 30 33 30 66 62 64 30 30   0d000000030fbd00
+|   3536: 30 66 65 38 30 66 65 66 30 66 62 64 0a 5b 31 66   0fe80fef0fbd.[1f
+|   3552: 62 64 5d 32 34 38 34 38 30 38 30 38 30 38 30 30   bd]2484808080800
+|   3568: 31 30 33 30 30 34 65 30 30 30 30 30 30 31 65 30   103004e0000001e0
+|   3584: 36 33 30 36 31 36 32 36 31 36 33 36 62 30 31 30   630616261636b010
+|   3600: 32 30 32 30 34 30 32 36 36 37 34 30 32 30 32 30   2020402667402020
+|   3616: 32 30 34 30 34 36 65 0a 36 34 36 66 36 65 30 33   204046e.646f6e03
+|   3632: 30 32 30 32 30 34 30 61 30 37 30 35 30 31 30 33   0202040a07050103
+|   3648: 30 30 31 30 30 33 30 33 30 66 30 61 30 33 30 30   001003030f0a0300
+|   3664: 32 34 30 30 30 30 30 30 30 30 30 31 30 31 30 31   2400000000010101
+|   3680: 30 30 30 31 30 31 30 31 30 31 30 61 30 30 30 30   00010101010a0000
+|   3696: 30 30 0a 30 31 30 66 66 61 30 30 30 66 66 61 0a   00.010ffa000ffa.
+|   3712: 5b 32 66 29 61 5d 30 35 30 34 30 39 30 63 30 31   [2f)a]0504090c01
+|   3728: 30 32 30 64 30 30 30 30 30 30 30 33 30 66 65 30   020d000000030fe0
+|   3744: 30 30 30 66 66 36 30 66 65 63 30 66 65 30 0a 5b   000ff60fec0fe0.[
+|   3760: 33 66 65 30 5d 30 61 30 33 30 33 30 30 31 62 36   3fe0]0a0303001b6
+|   3776: 31 36 32 36 31 36 65 36 34 36 66 36 65 30 38 30   162616e646f6e080
+|   3792: 32 30 33 30 30 31 37 36 31 36 32 36 31 36 36 37   2030017616261667
+|   3808: 34 30 38 30 31 30 33 30 33 36 62 30 31 30 32 30   4080103036b01020
+|   3824: 32 30 34 30 32 36 36 37 34 30 32 30 32 30 32 30   2040266740202020
+|   3840: 34 30 34 36 65 0a 36 34 36 66 36 65 30 33 30 32   4046e.646f6e0302
+|   3856: 30 32 30 34 30 61 30 37 30 35 30 31 30 33 30 30   02040a0705010300
+|   3872: 31 30 30 33 30 33 30 66 30 61 30 33 30 30 32 34   1003030f0a030024
+|   3888: 30 30 30 30 30 30 30 30 30 31 30 31 30 31 30 30   0000000001010100
+|   3904: 30 31 30 31 30 31 30 30 39 61 30 30 30 30 30 30   010101009a000000
+|   3920: 0a 30 31 30 66 66 61 30 30 30 66 66 61 0a 5b 32   .010ffa000ffa.[2
+|   3936: 66 65 72 20 62 61 63 6b 75 70 4a 08 04 00 81 19   fer backupJ.....
+|   3952: 61 6c 70 68 61 20 63 68 61 6e 6e 65 6c 20 62 61   alpha channel ba
+|   3968: 63 6b 75 70 20 61 62 61 6e 64 6f 6e 20 74 65 62   ckup abandon teb
+|   3984: 20 73 74 61 61 63 6b 20 63 68 61 6e 6e 65 62 6f    staack channebo
+|   4000: 6f 6d 65 72 20 61 74 6f 6d 20 61 6c 70 68 61 20   omer atom alpha 
+|   4016: 61 63 74 69 76 65 09 07 03 00 19 61 74 6f 6d 69   active.....atomi
+|   4032: 63 07 06 03 00 15 61 74 6b 6d 00 00 00 0b 19 62   c.....atkm.....b
+|   4048: 6f 6f 6d 65 72 09 04 03 00 19 61 63 74 69 76 65   oomer.....active
+|   4064: 0a 03 03 00 1b 61 62 61 6e 64 6f 6e 08 02 03 00   .....abandon....
+|   4080: 17 61 62 61 66 74 08 01 03 00 17 61 62 61 63 6b   .abaft.....aback
+| page 5 offset 16384
+|      0: 0d 00 00 00 08 0f d0 00 0f fa 0f f4 0f ee 0f e8   ................
+|     16: 0f e2 0f dc 0f d6 0f d0 00 00 00 00 00 00 00 00   ................
+|   4048: 04 08 03 00 0e 0a 04 07 03 00 0e 01 04 06 03 00   ................
+|   4064: 0e 01 04 05 03 00 0e 31 04 04 03 00 0e 01 04 03   .......1........
+|   4080: 03 00 0e 01 04 02 03 00 0e 01 04 01 03 00 0e 01   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 7 offset 24576
+|      0: 0d 00 00 00 03 0f d6 00 0f f4 0f e1 0f d6 00 00   ................
+|   4048: 00 00 00 00 00 00 09 03 02 1b 72 65 62 75 69 6c   ..........rebuil
+|   4064: 64 11 02 02 2b 69 6e 74 65 67 72 69 74 79 2d 63   d...+integrity-c
+|   4080: 68 65 63 6b 0a 01 02 1d 6f 70 74 69 6d 69 7a 65   heck....optimize
+| end c22b.db
+}]} {}
+
+
+do_catchsql_test 22.1 {
+  INSERT INTO t1(t1) VALUES('optimize');
+} {1 {database disk image is malformed}}
+
+#--------------------------------------------------------------------------
+reset_db
+do_test 23.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 28672 pagesize 4096 filename c24b.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 01 00 00 00 07   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01   ................
+|     96: 00 2e 30 38 0d 00 00 00 07 0d d2 00 0f c4 0f 6d   ..08...........m
+|    112: 0f 02 0e ab 0e 4e 0d f6 0d d2 00 00 00 00 00 00   .....N..........
+|   3536: 00 00 22 07 06 17 11 11 01 31 74 61 62 6c 65 74   .........1tablet
+|   3552: 32 74 32 07 43 52 45 41 54 45 20 54 41 42 4c 45   2t2.CREATE TABLE
+|   3568: 20 74 32 28 78 29 56 06 06 17 1f 1f 01 7d 74 61    t2(x)V.......ta
+|   3584: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   blet1_configt1_c
+|   3600: 6f 6e 66 69 67 06 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
+|   3616: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
+|   3632: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
+|   3648: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 05    WITHOUT ROWID[.
+|   3664: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64   ..!!...tablet1_d
+|   3680: 6f 63 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65   ocsizet1_docsize
+|   3696: 05 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
+|   3712: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
+|   3728: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
+|   3744: 59 2c 20 73 7a 20 42 4c 4f 42 29 55 04 06 17 21   Y, sz BLOB)U...!
+|   3760: 21 01 77 74 61 62 6c 65 74 31 5f 63 6f 6e 74 65   !.wtablet1_conte
+|   3776: 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 04 43 52 45   ntt1_content.CRE
+|   3792: 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63 6f   ATE TABLE 't1_co
+|   3808: 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47 45   ntent'(id INTEGE
+|   3824: 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 63   R PRIMARY KEY, c
+|   3840: 30 29 69 03 07 17 19 19 01 81 2d 74 61 62 6c 65   0)i.......-table
+|   3856: 74 31 5f 69 64 78 74 31 5f 69 64 78 03 43 52 45   t1_idxt1_idx.CRE
+|   3872: 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 69 64   ATE TABLE 't1_id
+|   3888: 78 27 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20   x'(segid, term, 
+|   3904: 70 67 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45   pgno, PRIMARY KE
+|   3920: 59 28 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20   Y(segid, term)) 
+|   3936: 57 49 54 48 4f 55 54 20 52 4f 57 49 44 55 02 07   WITHOUT ROWIDU..
+|   3952: 17 1b 1b 01 81 01 74 61 62 6c 65 74 31 5f 64 61   ......tablet1_da
+|   3968: 74 61 74 31 5f 64 61 74 61 02 43 52 45 41 54 45   tat1_data.CREATE
+|   3984: 20 54 41 42 4c 45 20 27 74 31 5f 64 61 74 61 27    TABLE 't1_data'
+|   4000: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   (id INTEGER PRIM
+|   4016: 41 52 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42   ARY KEY, block B
+|   4032: 4c 4f 42 29 3a 01 06 17 11 11 08 63 74 61 62 6c   LOB):......ctabl
+|   4048: 65 74 31 74 31 43 52 45 41 54 45 20 56 49 52 54   et1t1CREATE VIRT
+|   4064: 55 41 4c 20 54 41 42 4c 45 20 74 31 20 55 53 49   UAL TABLE t1 USI
+|   4080: 4e 47 20 66 74 73 35 28 63 6f 6e 74 65 6e 74 29   NG fts5(content)
+| page 2 offset 4096
+|      0: 0d 0f 1c 00 05 0e cb 00 0f e8 0e cb 0f bd 0f 30   ...............0
+|     16: 0e e2 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   3776: 00 00 00 00 00 00 00 00 00 00 00 15 0a 03 00 30   ...............0
+|   3792: 00 00 00 00 01 03 03 00 03 01 01 01 02 01 01 03   ................
+|   3808: 01 01 33 8c 80 80 80 80 01 03 00 6c 00 00 00 2c   ..3........l...,
+|   3824: 07 30 62 61 63 6b 75 70 05 02 04 02 05 65 61 6d   .0backup.....eam
+|   3840: 65 72 05 02 02 02 05 6f 6f 6d 65 72 05 01 02 05   er.....oomer....
+|   3856: 75 6d 6d 65 72 05 02 03 04 0b 0a 09 0f ef 00 14   ummer...........
+|   3872: 2a 00 00 00 00 01 02 02 00 02 01 01 01 02 01 01   *...............
+|   3888: 81 05 88 80 80 80 80 01 04 00 82 0e 00 00 00 76   ...............v
+|   3904: 06 30 61 62 61 63 6b 08 02 07 04 04 6e 64 6f 6e   .0aback.....ndon
+|   3920: 08 02 05 02 05 63 74 69 76 65 04 02 02 04 02 0b   .....ctive......
+|   3936: 02 04 6c 70 68 61 08 02 0a 02 03 74 6f 6d 06 02   ..lpha.....tom..
+|   3952: 02 02 02 09 05 02 69 63 07 02 02 01 06 62 61 63   ......ic.....bac
+|   3968: 6b 75 70 08 02 04 02 05 6f 6f 6d 65 72 05 02 02   kup.....oomer...
+|   3984: 03 02 08 01 07 63 68 61 6e 6e 65 6c 08 02 03 01   .....channel....
+|   4000: 05 65 6c 70 68 61 08 02 02 01 04 74 65 73 74 08   .elpha.....test.
+|   4016: 02 06 04 0a 09 0d 09 0b 07 0b 0d 0c 0a 24 84 80   .............$..
+|   4032: 80 80 80 01 03 00 4e 00 00 00 1e 02 61 23 25 23   ......N.....a#%#
+|   4048: 27 2b 01 02 02 04 02 66 74 02 02 02 04 04 6e 64   '+.....ft.....nd
+|   4064: 6f 6e 03 02 00 a0 42 70 05 01 03 00 10 08 13 00   on....Bp........
+|   4080: 00 00 11 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 3 offset 8192
+|      0: 0a 00 00 00 03 0f ec 00 0f fa 0f f3 0f ec 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 00 06 04 01 0c   ................
+|   4080: 01 03 02 06 04 01 0c 01 02 02 05 04 09 0c 01 02   ................
+| page 4 offset 12288
+|      0: 0d 0f ca 00 08 0f 57 00 0f f6 0f ec 0f e0 0f d5   ......W.........
+|     16: 0f 57 0f c1 0f b6 0f 70 00 00 00 00 00 00 00 00   .W.....p........
+|   3920: 00 00 00 00 00 00 00 17 05 03 00 35 62 65 61 6d   ...........5beam
+|   3936: 65 72 20 62 75 6d 6d 65 72 20 62 61 63 6b 75 70   er bummer backup
+|   3952: 44 08 04 00 81 0d 65 6c 70 68 61 20 63 68 61 6e   D.....elpha chan
+|   3968: 6e 65 6c 20 62 61 63 6b 75 70 20 61 62 61 6e 64   nel backup aband
+|   3984: 6f 6e 20 74 65 73 74 20 61 62 61 63 6b 20 62 6f   on test aback bo
+|   4000: 6f 6d 65 72 20 61 74 6f 6d 20 61 6c 70 68 61 20   omer atom alpha 
+|   4016: 61 63 74 69 76 65 09 07 03 00 19 61 74 6f 6d 69   active.....atomi
+|   4032: 63 07 06 03 00 15 61 74 6f 6d 00 00 00 0b 19 62   c.....atom.....b
+|   4048: 6f 6f 6d 65 72 09 04 03 00 19 61 63 74 69 76 65   oomer.....active
+|   4064: 0a 03 03 00 1b 61 62 61 6e 64 6f 6e 08 02 03 00   .....abandon....
+|   4080: 17 61 62 61 66 74 08 01 03 00 17 61 62 61 63 6b   .abaft.....aback
+| page 5 offset 16384
+|      0: 0d 00 00 00 08 0f d0 00 0f fa 0f f4 0f ee 0f e8   ................
+|     16: 0f e2 0f dc 0f d6 0f d0 00 00 00 00 00 00 00 00   ................
+|   4048: 04 08 03 00 0e 0a 04 07 03 00 0e 01 04 06 03 00   ................
+|   4064: 0e 01 04 05 03 00 0e 03 04 04 03 00 0e 01 04 03   ................
+|   4080: 03 00 0e 01 04 02 03 00 0e 01 04 01 03 00 0e 01   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 7 offset 24576
+|      0: 0d 00 00 00 03 0f d6 00 0f f4 0f e1 0f d6 00 00   ................
+|   4048: 00 00 00 00 00 00 09 03 02 1b 72 65 62 75 69 6c   ..........rebuil
+|   4064: 64 11 02 02 2b 69 6e 74 65 67 72 69 74 79 2d 63   d...+integrity-c
+|   4080: 68 65 63 6b 0a 01 02 1d 6f 70 74 69 6d 69 7a 65   heck....optimize
+| end c24b.db
+}]} {}
+
+do_catchsql_test 23.1 {
+  INSERT INTO t1(t1) VALUES('optimize');
+} {1 {database disk image is malformed}}
+
+#--------------------------------------------------------------------------
+reset_db
+do_test 24.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 32768 pagesize 4096 filename crash-b87dfef02880fe.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 08   .....@  ........
+|     32: 00 00 00 02 00 00 00 01 00 00 00 09 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 0f c7 00 07 0d 92 00 0f 8d 0f 36   ...............6
+|    112: 0e cb 0e 6b 0e 0e 0d b6 0d 92 0d 92 00 00 00 00   ...k............
+|   3472: 00 00 22 08 06 17 11 11 01 31 74 61 62 6c 65 74   .........1tablet
+|   3488: 32 74 32 08 43 52 45 41 54 45 20 54 41 42 4c 45   2t2.CREATE TABLE
+|   3504: 20 74 32 28 78 29 56 07 06 17 1f 1f 01 7d 74 61    t2(x)V.......ta
+|   3520: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   blet1_configt1_c
+|   3536: 6f 6e 66 69 67 07 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
+|   3552: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
+|   3568: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
+|   3584: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 06    WITHOUT ROWID[.
+|   3600: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64   ..!!...tablet1_d
+|   3616: 6f 63 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65   ocsizet1_docsize
+|   3632: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
+|   3648: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
+|   3664: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
+|   3680: 59 2c 20 73 7a 20 42 4c 4f 42 29 5e 05 07 17 21   Y, sz BLOB)^...!
+|   3696: 21 01 81 07 74 61 62 6c 65 74 31 5f 63 6f 6e 74   !...tablet1_cont
+|   3712: 65 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 05 43 52   entt1_content.CR
+|   3728: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63   EATE TABLE 't1_c
+|   3744: 6f 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47   ontent'(id INTEG
+|   3760: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
+|   3776: 63 30 2c 20 63 31 2c 20 63 32 29 69 04 07 17 19   c0, c1, c2)i....
+|   3792: 19 01 81 2d 74 61 62 6c 65 74 31 5f 69 64 78 74   ...-tablet1_idxt
+|   3808: 31 5f 69 64 78 04 43 52 45 41 54 45 20 54 41 42   1_idx.CREATE TAB
+|   3824: 4c 45 20 27 74 31 5f 69 64 78 27 28 73 65 67 69   LE 't1_idx'(segi
+|   3840: 64 2c 20 74 65 72 6d 2c 20 70 67 6e 6f 2c 20 50   d, term, pgno, P
+|   3856: 52 49 4d 41 52 59 20 4b 45 59 28 73 65 67 69 64   RIMARY KEY(segid
+|   3872: 2c 20 74 65 72 6d 29 29 20 57 49 54 48 4f 55 54   , term)) WITHOUT
+|   3888: 20 52 4f 57 49 44 55 03 07 17 1b 1b 01 81 01 74    ROWIDU........t
+|   3904: 61 62 6c 65 74 31 5f 64 61 74 61 74 31 5f 64 61   ablet1_datat1_da
+|   3920: 74 61 03 43 52 45 41 54 45 20 54 41 42 4c 45 20   ta.CREATE TABLE 
+|   3936: 27 74 31 5f 64 61 74 61 27 28 69 64 20 49 4e 54   't1_data'(id INT
+|   3952: 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59   EGER PRIMARY KEY
+|   3968: 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42 29 38 02 06   , block BLOB)8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 35   LE t1 USING fts5
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 39 00 00 00 00 00   (a,b,c)...9.....
+| page 3 offset 8192
+|      0: 0d 00 00 00 03 0c 94 00 0f e6 0f ef 0c 94 00 00   ................
+|   3216: 00 00 00 00 86 4a 84 80 80 80 80 01 04 00 8d 18   .....J..........
+|   3232: 00 00 03 2b 02 30 30 01 02 06 01 02 06 01 02 06   ...+.00.........
+|   3248: 1f 02 03 01 02 03 01 02 03 01 08 32 30 31 36 30   ...........20160
+|   3264: 36 30 39 01 02 07 01 02 07 01 02 07 01 01 34 01   609...........4.
+|   3280: 02 05 01 02 05 01 02 05 01 01 35 01 02 04 01 02   ..........5.....
+|   3296: 04 01 02 04 02 07 30 30 30 30 30 30 30 1c 02 04   ......0000000...
+|   3312: 01 02 04 01 02 04 01 06 62 69 6e 61 72 79 03 06   ........binary..
+|   3328: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3344: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3360: 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02   ................
+|   3376: 03 06 01 02 02 03 06 01 02 02 01 08 63 6f 6d 70   ............comp
+|   3392: 69 6c 65 72 01 02 02 01 02 02 01 02 02 01 06 64   iler...........d
+|   3408: 62 73 74 61 74 07 02 03 01 02 03 01 02 03 02 04   bstat...........
+|   3424: 65 62 75 67 04 02 02 01 02 02 01 02 02 01 06 65   ebug...........e
+|   3440: 6e 61 62 6c 65 07 02 02 01 02 02 01 02 02 01 02   nable...........
+|   3456: 02 01 02 02 01 02 02 01 02 02 01 02 02 01 02 02   ................
+|   3472: 01 02 02 01 02 02 01 02 02 01 02 02 01 02 02 01   ................
+|   3488: 02 02 01 02 02 01 02 02 01 02 02 01 02 02 01 02   ................
+|   3504: 02 01 02 02 02 08 78 74 65 6e 73 69 6f 6e 1f 02   ......xtension..
+|   3520: 04 01 02 04 01 02 04 01 04 66 74 73 34 1a 02 03   .........fts4...
+|   3536: 01 02 03 01 02 03 04 01 35 0d 02 03 01 02 03 01   ........5.......
+|   3552: 02 03 01 03 67 63 63 01 02 03 01 02 03 01 02 03   ....gcc.........
+|   3568: 02 06 65 6f 70 6f 6c 79 10 02 03 01 02 03 01 02   ..eopoly........
+|   3584: 03 01 05 6a 73 6f 6e 31 13 02 03 01 02 03 01 02   ...json1........
+|   3600: 03 01 04 6c 6f 61 64 1f 02 03 01 02 03 01 02 03   ...load.........
+|   3616: 01 03 6d 61 78 1c 02 02 01 02 02 01 02 02 02 05   ..max...........
+|   3632: 65 6d 6f 72 79 1c 02 03 01 02 03 01 02 03 04 04   emory...........
+|   3648: 73 79 73 35 16 02 03 01 02 03 01 02 03 01 06 6e   sys5...........n
+|   3664: 6f 63 61 73 65 02 06 01 02 02 03 06 01 02 02 03   ocase...........
+|   3680: 06 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06   ................
+|   3696: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3712: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3728: 02 01 04 6f 6d 69 74 1f 02 02 01 02 02 01 02 02   ...omit.........
+|   3744: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 02   ................
+|   3760: 58 81 96 4d 01 06 01 02 02 03 06 01 02 02 03 06   X..M............
+|   3776: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3792: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3808: 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02   ................
+|   3824: 01 0a 74 68 72 65 61 64 73 61 66 65 22 02 02 01   ..threadsafe....
+|   3840: 02 02 01 02 02 01 04 76 74 61 62 07 02 04 01 02   .......vtab.....
+|   3856: 04 01 02 04 01 01 78 01 06 01 01 02 01 06 01 01   ......x.........
+|   3872: 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02   ................
+|   3888: 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01   ................
+|   3904: 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06   ................
+|   3920: 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01   ................
+|   3936: 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01   ................
+|   3952: 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02   ................
+|   3968: 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01   ................
+|   3984: 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06   ................
+|   4000: 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01   ................
+|   4016: 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01   ................
+|   4032: 02 01 06 01 01 02 01 06 01 01 02 04 15 13 0c 0c   ................
+|   4048: 12 44 13 11 0f 47 13 0f 0c 0e 11 10 0f 0e 10 0f   .D...G..........
+|   4064: 44 0f 10 40 15 0f 07 01 03 00 14 24 5a 24 24 0f   D..@.......$Z$$.
+|   4080: 0a 03 00 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 4 offset 12288
+|      0: 0a 00 00 00 01 0f fa 00 0f fa 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
+| page 5 offset 16384
+|      0: 0d 00 00 00 24 0c 0a 00 0f d8 0f af 0f 86 0f 74   ....$..........t
+|     16: 0f 61 0f 4e 0f 2f 0f 0f 0e ef 0e d7 0e be 0e a5   .a.N./..........
+|     32: 0e 8d 0e 74 0e 5b 0e 40 0e 24 0e 08 0d ef 0d d5   ...t.[.@.$......
+|     48: 0d bb 0d a0 0d 84 0d 68 0d 4f 0d 35 0d 1b 0c fb   .......h.O.5....
+|     64: 0c da 0c b9 0c 99 0c 78 0c 57 0c 3e 0c 24 0c 0a   .......x.W.>.$..
+|   3072: 00 00 00 00 00 00 00 00 00 00 18 24 05 00 25 0f   ...........$..%.
+|   3088: 19 54 48 52 45 41 44 53 41 46 45 3d 30 58 42 49   .THREADSAFE=0XBI
+|   3104: 4e 41 52 59 18 23 05 00 25 0f 19 54 48 52 45 41   NARY.#..%..THREA
+|   3120: 44 53 41 46 45 3d 30 58 4e 4f 43 41 53 45 17 22   DSAFE=0XNOCASE..
+|   3136: 05 00 25 0f 17 54 48 52 45 41 44 53 41 46 45 3d   ..%..THREADSAFE=
+|   3152: 30 58 52 54 52 49 4d 1f 21 05 00 33 0f 19 4f 4d   0XRTRIM.!..3..OM
+|   3168: 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49 4f   IT LOAD EXTENSIO
+|   3184: 4e 58 42 49 4e 41 52 59 1f 20 05 00 33 0f 19 4f   NXBINARY. ..3..O
+|   3200: 4d 49 54 20 4c 4f 41 44 b2 04 55 85 44 54 e5 34   MIT LOAD..U.DT.4
+|   3216: 94 f4 e5 84 e4 f4 34 15 34 51 e1 f0 50 03 30 f1   ......4.4Q..P.0.
+|   3232: 74 f4 d4 95 42 04 c4 f4 14 42 04 55 85 44 54 e5   t...B....B.U.DT.
+|   3248: 34 94 f4 e5 85 25 45 24 94 d1 f1 e0 50 03 30 f1   4....%E$....P.0.
+|   3264: 94 d4 15 82 04 d4 54 d4 f5 25 93 d3 53 03 03 03   ......T..%..S...
+|   3280: 03 03 03 05 84 24 94 e4 15 25 91 f1 d0 50 03 30   .....$...%...P.0
+|   3296: f1 94 d4 15 82 04 d4 54 d4 f5 25 93 d3 53 03 03   .......T..%..S..
+|   3312: 03 03 03 03 05 84 e4 f4 34 15 34 51 e1 c0 50 03   ........4.4Q..P.
+|   3328: 30 f1 74 d4 15 82 04 d4 54 d4 f5 25 93 d3 53 03   0.t.....T..%..S.
+|   3344: 03 03 03 03 03 05 85 25 45 24 94 d1 81 b0 50 02   .......%E$....P.
+|   3360: 50 f1 94 54 e4 14 24 c4 52 05 25 45 24 54 55 84   P..T..$.R.%E$TU.
+|   3376: 24 94 e4 15 25 91 81 a0 50 02 50 f1 94 54 e4 14   $...%...P.P..T..
+|   3392: 24 c4 52 05 25 45 24 54 55 84 e4 f4 34 15 34 51   $.R.%E$TU...4.4Q
+|   3408: 71 90 50 02 50 f1 74 54 e4 14 24 c4 52 05 25 45   q.P.P.tT..$.R.%E
+|   3424: 24 54 55 85 25 45 24 94 d1 a1 80 50 02 90 f1 94   $TU.%E$....P....
+|   3440: 54 e4 14 24 c4 52 04 d4 54 d5 35 95 33 55 84 24   T..$.R..T.5.3U.$
+|   3456: 94 e4 15 25 91 a1 70 50 02 90 f1 94 54 e4 14 24   ...%..pP....T..$
+|   3472: c4 52 04 d4 54 d5 35 95 33 55 84 e4 f4 34 15 34   .R..T.5.3U...4.4
+|   3488: 51 91 60 50 02 90 f1 74 54 e4 14 24 c4 52 04 d4   Q.`P...tT..$.R..
+|   3504: 54 d5 35 95 33 55 85 25 45 24 94 d1 81 50 50 02   T.5.3U.%E$...PP.
+|   3520: 50 f1 94 54 e4 14 24 c4 52 04 a5 34 f4 e3 15 84   P..T..$.R..4....
+|   3536: 24 94 e4 15 25 91 81 40 50 02 50 f1 94 54 e4 14   $...%..@P.P..T..
+|   3552: 24 c4 52 04 a5 34 f4 e3 15 84 e4 f4 34 15 34 51   $.R..4......4.4Q
+|   3568: 71 30 50 02 50 f1 74 54 e4 14 24 c4 52 04 a5 34   q0P.P.tT..$.R..4
+|   3584: f4 e3 15 85 25 45 24 94 d1 a1 20 50 02 90 f1 94   ....%E$... P....
+|   3600: 54 e4 14 24 c4 52 04 74 54 f5 04 f4 c5 95 84 24   T..$.R.tT......$
+|   3616: 94 e4 15 25 91 a1 10 50 02 90 f1 94 54 e4 14 24   ...%...P....T..$
+|   3632: c4 52 04 74 54 f5 04 f4 c5 95 84 e4 f4 34 15 34   .R.tT........4.4
+|   3648: 51 91 00 50 02 90 f1 74 54 e4 14 24 c4 52 04 74   Q..P...tT..$.R.t
+|   3664: 54 f5 04 f4 c5 95 85 25 45 24 94 d1 70 f0 50 02   T......%E$..p.P.
+|   3680: 30 f1 94 54 e4 14 24 c5 20 46 54 53 35 58 42 49   0..T..$. FTS5XBI
+|   3696: 4e 41 52 59 17 0e 05 00 23 0f 19 45 4e 41 42 4c   NARY....#..ENABL
+|   3712: 45 20 46 54 53 35 58 4e 4f 43 41 53 45 16 0d 05   E FTS5XNOCASE...
+|   3728: 00 23 0f 17 45 4e 41 42 4c 45 20 46 54 53 35 58   .#..ENABLE FTS5X
+|   3744: 52 54 52 49 4d 17 0c 05 00 23 0f 19 45 4e 41 42   RTRIM....#..ENAB
+|   3760: 4c 45 20 46 54 53 34 58 42 49 4e 41 52 59 97 0b   LE FTS4XBINARY..
+|   3776: 05 00 23 0f 19 45 4e 41 42 4c 45 20 46 54 53 34   ..#..ENABLE FTS4
+|   3792: 58 4e 4f 43 41 53 45 16 0a 05 00 23 0f 17 45 4e   XNOCASE....#..EN
+|   3808: 41 42 4c 45 20 46 54 53 34 58 52 54 52 49 4d 1e   ABLE FTS4XRTRIM.
+|   3824: 09 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3840: 54 41 54 20 56 54 41 42 58 42 49 4e 41 52 59 1e   TAT VTABXBINARY.
+|   3856: 08 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3872: 54 41 54 20 56 54 41 42 58 4e 4f 43 41 53 45 1d   TAT VTABXNOCASE.
+|   3888: 07 05 00 31 0f 17 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3904: 54 41 54 20 56 54 41 42 58 52 54 52 49 4d 11 06   TAT VTABXRTRIM..
+|   3920: 05 00 17 0f 19 44 45 42 55 47 58 42 49 4e 41 52   .....DEBUGXBINAR
+|   3936: 59 11 05 05 00 17 0f 19 44 45 42 55 47 58 4e 4f   Y.......DEBUGXNO
+|   3952: 43 41 53 45 10 02 02 50 08 5f 17 44 45 42 55 47   CASE...P._.DEBUG
+|   3968: 58 52 54 52 49 4d 27 03 05 00 43 0f 19 43 4f 4d   XRTRIM'...C..COM
+|   3984: 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e 30 20   PILER=gcc-5.4.0 
+|   4000: 32 30 31 36 30 36 30 39 58 42 49 4e 41 52 59 27   20160609XBINARY'
+|   4016: 02 05 00 43 0f 19 43 4f 4d 50 49 4c 45 52 3d 67   ...C..COMPILER=g
+|   4032: 63 63 2d 35 2e 34 2e 30 20 32 30 31 36 30 36 30   cc-5.4.0 2016060
+|   4048: 39 58 4e 4f 43 41 53 45 26 01 05 00 43 0f 17 43   9XNOCASE&...C..C
+|   4064: 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e   OMPILER=gcc-5.4.
+|   4080: 30 20 32 30 31 36 30 36 30 39 58 52 54 52 49 4d   0 20160609XRTRIM
+| page 6 offset 20480
+|      0: 0d 00 00 00 24 0e e0 00 0f f8 0f f0 0f e8 0f e0   ....$...........
+|     16: 0f d8 0f d0 0f c8 0f c0 0f b8 0f b0 0f a8 0f a0   ................
+|     32: 0f 98 0f 90 0f 88 0f 80 0f 78 0f 70 0f 68 0f 60   .........x.p.h.`
+|     48: 0f 58 0f 50 0f 48 0f 40 0f 38 0f 30 0f 28 0f 20   .X.P.H.@.8.0.(. 
+|     64: 0f 18 0f 10 0f 08 0f 00 0e f8 0e f0 0e e8 0e e0   ................
+|   3808: 06 24 03 00 12 02 01 01 06 23 03 00 12 02 01 01   .$.......#......
+|   3824: 06 22 03 00 12 02 01 01 06 21 03 00 12 03 01 01   .........!......
+|   3840: 06 20 03 00 12 03 01 01 06 1f 03 00 12 03 01 01   . ..............
+|   3856: 06 1e 03 00 12 03 01 01 06 1d 03 00 12 03 01 01   ................
+|   3872: 06 1c 03 00 12 03 01 01 06 1b 03 00 12 02 01 01   ................
+|   3888: 06 1a 03 00 12 02 01 01 06 19 03 00 12 02 01 01   ................
+|   3904: 06 18 03 00 12 02 01 01 06 17 03 00 12 02 01 01   ................
+|   3920: 06 16 03 00 12 02 01 01 06 15 03 00 12 02 01 01   ................
+|   3936: 06 14 03 00 12 02 01 01 06 13 03 00 12 02 01 01   ................
+|   3952: 06 12 03 00 12 02 01 01 06 11 03 00 12 02 01 01   ................
+|   3968: 06 10 03 00 12 02 01 01 06 0f 03 00 12 02 01 01   ................
+|   3984: 06 0e 03 00 12 02 01 01 06 0d 03 00 12 02 01 01   ................
+|   4000: 06 0c 03 00 12 02 01 01 06 0b 03 00 12 02 01 01   ................
+|   4016: 06 0a 03 00 12 02 01 01 06 09 03 00 12 03 01 01   ................
+|   4032: 06 08 03 00 12 03 01 01 06 07 03 00 12 03 01 01   ................
+|   4048: 06 06 03 00 12 01 01 01 06 05 03 00 12 01 01 01   ................
+|   4064: 06 04 03 00 12 01 01 01 06 03 03 00 12 06 01 01   ................
+|   4080: 06 02 03 00 12 06 01 01 06 01 03 00 12 06 01 01   ................
+| page 7 offset 24576
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 8 offset 28672
+|      0: 0d 00 00 00 03 0f d6 00 0f f4 0f e9 0f d6 00 00   ................
+|   4048: 00 00 00 00 00 00 11 03 02 2b 69 6e 74 65 67 72   .........+integr
+|   4064: 69 74 79 2d 63 68 65 63 6b 09 02 02 1b 72 65 62   ity-check....reb
+|   4080: 75 69 6c 64 0a 01 02 1d 6f 70 74 69 6d 69 7a 65   uild....optimize
+| end crash-b87dfef02880fe.db
+}]} {}
+
+do_catchsql_test 24.1 {
+  UPDATE t1 SET b=quote(zeroblob(200)) WHERE a MATCH 'thread*';
+} {1 {database disk image is malformed}}
+
+do_catchsql_test 24.2 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+} {1 {database disk image is malformed}}
+
+#--------------------------------------------------------------------------
+reset_db
+do_test 25.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 28672 pagesize 4096 filename crash-e3b1b19e4d4bcc.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 06 00 00 00 00   .....@  ........
+|     32: 00 00 00 00 00 00 00 06 00 00 00 04 00 00 00 00   ................
+|     48: 03 20 54 35 24 54 15 44 52 04 94 e4 44 55 82 07   . T5$T.DR...DU..
+|     64: 43 27 a2 04 f4 e2 07 43 22 87 a2 95 30 30 71 71   C'.....C....00qq
+|     80: 11 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33   .SQLite format 3
+|     96: 00 10 00 01 0d 00 00 00 07 0d d2 00 0f c4 0f 6d   ...............m
+|    112: 0f 02 0e ab 0e 4e 0d f6 0d d2 03 30 01 00 00 10   .....N.....0....
+|    128: 10 04 02 02 00 00 00 00 00 00 00 00 30 00 00 00   ............0...
+|    144: 00 00 00 00 00 00 00 00 20 00 00 00 40 00 00 00   ........ ...@...
+|   3536: 00 00 22 07 06 17 11 11 01 31 74 61 62 6c 65 74   .........1tablet
+|   3552: 32 74 32 07 43 52 45 41 54 45 20 54 41 42 4c 45   2t2.CREATE TABLE
+|   3568: 20 74 32 28 78 29 56 06 06 17 1f 1f 01 7d 74 61    t2(x)V.......ta
+|   3584: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   blet1_configt1_c
+|   3600: 6f 6e 66 69 67 06 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
+|   3616: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
+|   3632: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
+|   3648: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 05    WITHOUT ROWID[.
+|   3664: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64   ..!!...tablet1_d
+|   3680: 6f 63 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65   ocsizet1_docsize
+|   3696: 05 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
+|   3712: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
+|   3728: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
+|   3744: 59 2c 20 73 7a 20 42 4c 4f 42 29 55 04 06 17 21   Y, sz BLOB)U...!
+|   3760: 21 01 77 74 61 62 6c 65 74 31 5f 63 6f 6e 74 65   !.wtablet1_conte
+|   3776: 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 04 43 52 45   ntt1_content.CRE
+|   3792: 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63 6f   ATE TABLE 't1_co
+|   3808: 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47 45   ntent'(id INTEGE
+|   3824: 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 63   R PRIMARY KEY, c
+|   3840: 30 29 69 03 07 17 19 19 01 81 2d 74 61 62 6c 65   0)i.......-table
+|   3856: 74 31 5f 69 64 78 74 31 5f 69 64 78 03 43 52 45   t1_idxt1_idx.CRE
+|   3872: 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 69 64   ATE TABLE 't1_id
+|   3888: 78 27 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20   x'(segid, term, 
+|   3904: 70 67 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45   pgno, PRIMARY KE
+|   3920: 59 28 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20   Y(segid, term)) 
+|   3936: 57 49 54 48 4f 55 54 20 52 4f 57 49 44 55 02 07   WITHOUT ROWIDU..
+|   3952: 17 1b 1b 01 81 01 74 61 62 6c 65 74 31 5f 64 61   ......tablet1_da
+|   3968: 74 61 74 31 5f 64 61 74 61 02 43 52 45 41 54 45   tat1_data.CREATE
+|   3984: 20 54 41 42 4c 45 20 27 74 31 5f 64 61 74 61 27    TABLE 't1_data'
+|   4000: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 d9 44   (id INTEGER PR.D
+|   4016: 41 52 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42   ARY KEY, block B
+|   4032: 4c 4f 42 29 3a 01 06 17 11 11 08 63 74 61 62 6c   LOB):......ctabl
+|   4048: 65 74 31 74 31 43 52 45 41 54 45 20 56 49 52 54   et1t1CREATE VIRT
+|   4064: 55 41 4c 20 54 41 42 4c 45 20 74 31 20 55 53 49   UAL TABLE t1 USI
+|   4080: 4e 47 20 66 74 73 35 28 63 6f 6e 74 65 6e 74 29   NG fts5(content)
+| page 2 offset 4096
+|      0: 0d 00 00 00 03 0f bd 00 0f e8 0f ef 0f bd 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 00 00 00 00 00 24 84 80   .............$..
+|   4032: 80 80 80 01 03 00 4e 00 00 00 1e 06 30 61 62 61   ......N.....0aba
+|   4048: 63 6b 01 02 02 04 02 66 74 02 02 02 04 04 6e 64   ck.....ft.....nd
+|   4064: 6f 6e 03 02 02 04 0a 07 05 01 03 00 10 03 03 0f   on..............
+|   4080: 0a 03 00 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 3 offset 8192
+|      0: 0a 00 00 00 01 0f fa 00 0f fa 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
+| page 4 offset 12288
+|      0: 0d 00 00 00 03 0f e0 00 0f f6 0f e0 fe 00 00 00   ................
+|   4064: 0a 03 03 00 1b 61 62 61 6e 64 6f 6e 08 02 00 03   .....abandon....
+|   4080: 17 61 62 61 66 74 08 01 03 00 17 61 62 61 63 6b   .abaft.....aback
+| page 5 offset 16384
+|      0: 0d 00 00 00 03 0f ee 00 0f fa 0f f4 0f ee 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 04 03   ................
+|   4080: 03 00 0e 01 04 02 03 00 0e 01 04 01 03 00 0e 01   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 7 offset 24576
+|      0: 0d 00 00 00 03 0f d6 00 0f f4 01 fe 0f d6 00 00   ................
+|   4048: 00 00 00 00 00 00 09 03 02 1b 72 65 62 75 69 6c   ..........rebuil
+|   4064: 64 11 02 02 2b 69 6e 74 65 67 72 69 74 79 2d 63   d...+integrity-c
+|   4080: 68 65 63 6b 0a 01 02 1d 6f 70 74 69 6d 69 7a 65   heck....optimize
+| end crash-e3b1b19e4d4bcc.db
+}]} {}
+
+do_catchsql_test 25.1 {
+  INSERT INTO t1(t1) VALUES('rebuild');
+} {1 {database disk image is malformed}}
+
+do_execsql_test 25.2 {
+  PRAGMA page_size=512;
+} 
+
+#--------------------------------------------------------------------------
+reset_db
+do_test 26.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 32768 pagesize 4096 filename c30b.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 01 00 00 00 08   .....@  ........
+|     32: 00 00 00 02 00 00 00 01 00 00 00 01 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01   ................
+|     96: 00 2e 30 38 0d 0f c7 00 07 0d 92 00 0f 8d 0f 36   ..08...........6
+|    112: 0e cb 0e 6b 0e 0e 0d b6 0d 92 0d 92 00 00 00 00   ...k............
+|   3472: 00 00 22 08 06 17 11 11 01 31 74 61 62 6c 65 74   .........1tablet
+|   3488: 32 74 32 08 43 52 45 41 54 45 20 54 41 42 4c 45   2t2.CREATE TABLE
+|   3504: 20 74 32 28 78 29 56 07 06 17 1f 1f 01 7d 74 61    t2(x)V.......ta
+|   3520: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   blet1_configt1_c
+|   3536: 6f 6e 66 69 67 07 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
+|   3552: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
+|   3568: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
+|   3584: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 06    WITHOUT ROWID[.
+|   3600: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64   ..!!...tablet1_d
+|   3616: 6f 63 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65   ocsizet1_docsize
+|   3632: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
+|   3648: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
+|   3664: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
+|   3680: 59 2c 20 73 7a 20 42 4c 4f 42 29 5e 05 07 17 21   Y, sz BLOB)^...!
+|   3696: 21 01 81 07 74 61 62 6c 65 74 31 5f 63 6f 6e 74   !...tablet1_cont
+|   3712: 65 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 05 43 52   entt1_content.CR
+|   3728: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63   EATE TABLE 't1_c
+|   3744: 6f 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47   ontent'(id INTEG
+|   3760: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
+|   3776: 63 30 2c 20 63 31 2c 20 63 32 29 69 04 07 17 19   c0, c1, c2)i....
+|   3792: 19 01 81 2d 74 61 62 6c 65 74 31 5f 69 64 78 74   ...-tablet1_idxt
+|   3808: 31 5f 69 64 78 04 43 52 45 41 54 45 20 54 41 42   1_idx.CREATE TAB
+|   3824: 4c 45 20 27 74 31 5f 69 64 78 27 28 73 65 67 69   LE 't1_idx'(segi
+|   3840: 64 2c 20 74 65 72 6d 2c 20 70 67 6e 6f 2c 20 50   d, term, pgno, P
+|   3856: 52 49 4d 41 52 59 20 4b 45 59 28 73 65 67 69 64   RIMARY KEY(segid
+|   3872: 2c 20 74 65 72 6d 29 29 20 57 49 54 48 4f 55 54   , term)) WITHOUT
+|   3888: 20 52 4f 57 49 44 55 03 07 17 1b 1b 01 81 01 74    ROWIDU........t
+|   3904: 61 62 6c 65 74 31 5f 64 61 74 61 74 31 5f 64 61   ablet1_datat1_da
+|   3920: 74 61 03 43 52 45 41 54 45 20 54 41 42 4c 45 20   ta.CREATE TABLE 
+|   3936: 27 74 31 5f 64 61 74 61 27 28 69 64 20 49 4e 54   't1_data'(id INT
+|   3952: 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59   EGER PRIMARY KEY
+|   3968: 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42 29 38 02 06   , block BLOB)8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 35   LE t1 USING fts5
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 39 00 00 00 00 00   (a,b,c)...9.....
+| page 3 offset 8192
+|      0: 0d 0c 0f 00 05 09 fe 00 0f e6 09 fe 0c 94 0c 23   ...............#
+|     16: 0a 15 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   2544: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 15 0a   ................
+|   2560: 03 00 30 00 00 00 00 01 03 03 00 03 01 01 01 02   ..0.............
+|   2576: 01 01 03 01 01 83 72 8c 80 80 80 80 01 04 00 87   ......r.........
+|   2592: 68 00 00 01 e4 02 30 30 03 03 06 02 83 0f 30 30   h.....00......00
+|   2608: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|   2624: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|   2640: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|   2656: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|   2672: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|   2688: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|   2704: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|   2720: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|   2736: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|   2752: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|   2768: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|   2784: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|   2800: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|   2816: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|   2832: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|   2848: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|   2864: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|   2880: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|   2896: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|   2912: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|   2928: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|   2944: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|   2960: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
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+|   3024: 01 34 03 03 05 01 01 35 03 03 04 01 06 62 69 6e   .4.....5.....bin
+|   3040: 61 72 79 03 07 01 02 02 01 08 63 6f 6d 70 69 6c   ary.......compil
+|   3056: 65 72 03 03 02 01 03 67 63 63 03 03 03 01 01 78   er.....gcc.....x
+|   3072: 03 07 01 01 02 04 06 83 17 0d 06 06 0d 0d 08 0f   ................
+|   3088: ef 00 14 2a 00 00 00 00 01 02 02 00 02 01 01 01   ...*............
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+|   3136: 65 6e 61 62 6c 65 0a 01 01 01 01 01 01 01 01 01   enable..........
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+|   3184: 01 03 01 01 05 72 74 72 69 6d 0a 01 03 01 01 01   .....rtrim......
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+|   3264: 36 30 39 01 02 07 01 02 07 01 02 07 01 01 34 01   609...........4.
+|   3280: 02 05 01 02 05 01 02 05 01 01 35 01 02 04 01 02   ..........5.....
+|   3296: 04 01 02 04 02 07 30 30 30 30 30 30 30 1c 02 04   ......0000000...
+|   3312: 01 02 04 01 02 04 01 06 62 69 6e 61 72 79 03 06   ........binary..
+|   3328: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
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+|   3392: 69 6c 65 72 01 02 02 01 02 02 01 02 02 01 06 64   iler...........d
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+|   4048: 12 44 13 11 0f 47 13 0f 0c 0e 11 10 0f 0e 10 0f   .D...G..........
+|   4064: 44 0f 10 40 15 0f 07 01 03 00 14 1e 4e 1f 1e 00   D..@........N...
+|   4080: 00 00 11 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 4 offset 12288
+|      0: 0a 00 00 00 03 0f ec 00 0f fa 0f f3 0f ec 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 00 06 04 01 0c   ................
+|   4080: 01 03 02 06 04 01 0c 01 02 02 05 04 09 0c 01 02   ................
+| page 5 offset 16384
+|      0: 0d 0e 5b 00 1e 0a 4d 00 0f d8 0f af 0a 4d 0f 74   ..[...M......M.t
+|     16: 0f 61 0f 4e 0f 2f 0f 0f 0e ef 0e 40 0e 24 0e 08   .a.N./.....@.$..
+|     32: 0d ef 0d d5 0d bb 0d a0 0d 84 0d 68 0d 4f 0d 35   ...........h.O.5
+|     48: 0d 1b 0c fb 0c da 0c b9 0c 99 0c 78 0c 57 0c 3e   ...........x.W.>
+|     64: 0c 24 0c 0a 0c 0a 0c 0a 0c 0a 0c 0a 0c 0a 0c 0a   .$..............
+|   2624: 00 00 00 00 00 00 00 00 00 00 00 00 00 83 3a 03   ..............:.
+|   2640: 06 00 43 86 33 19 43 4f 4d 50 49 4c 45 52 3d 67   ..C.3.COMPILER=g
+|   2656: 63 63 2d 35 2e 34 2e 30 20 32 30 31 36 30 36 30   cc-5.4.0 2016060
+|   2672: 39 58 27 30 30 30 30 30 30 30 30 30 30 30 30 30   9X'0000000000000
+|   2688: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|   2704: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
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+|   3056: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|   3072: 30 30 30 27 42 49 4e 41 52 59 18 24 05 00 25 0f   000'BINARY.$..%.
+|   3088: 19 54 48 52 45 41 44 53 41 46 45 3d 30 58 42 49   .THREADSAFE=0XBI
+|   3104: 4e 41 52 59 18 23 05 00 25 0f 19 54 48 52 45 41   NARY.#..%..THREA
+|   3120: 44 53 41 46 45 3d 30 58 4e 4f 43 41 53 45 17 22   DSAFE=0XNOCASE..
+|   3136: 05 00 25 0f 17 54 48 52 45 41 44 53 41 46 45 3d   ..%..THREADSAFE=
+|   3152: 30 58 52 54 52 49 4d 1f 21 05 00 33 0f 19 4f 4d   0XRTRIM.!..3..OM
+|   3168: 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49 4f   IT LOAD EXTENSIO
+|   3184: 4e 58 42 49 4e 41 52 59 1f 20 05 00 33 0f 19 4f   NXBINARY. ..3..O
+|   3200: 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49   MIT LOAD EXTENSI
+|   3216: 4f 4e 58 4e 4f 43 41 53 45 1e 1f 05 00 33 0f 17   ONXNOCASE....3..
+|   3232: 4f 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53   OMIT LOAD EXTENS
+|   3248: 49 4f 4e 58 52 54 52 49 4d 1f 1e 05 00 33 0f 19   IONXRTRIM....3..
+|   3264: 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30 30   MAX MEMORY=50000
+|   3280: 30 30 30 58 42 49 4e 41 52 59 1f 1d 05 00 33 0f   000XBINARY....3.
+|   3296: 19 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30   .MAX MEMORY=5000
+|   3312: 30 30 30 30 58 4e 4f 43 41 53 45 1e 1c 05 00 33   0000XNOCASE....3
+|   3328: 0f 17 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30   ..MAX MEMORY=500
+|   3344: 30 30 30 30 30 58 52 54 52 49 4d 18 1b 05 00 25   00000XRTRIM....%
+|   3360: 0f 19 45 4e 41 42 4c 45 20 52 54 52 45 45 58 42   ..ENABLE RTREEXB
+|   3376: 49 4e 41 52 59 18 1a 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3392: 4c 45 20 52 54 52 45 45 58 4e 4f 43 41 53 45 17   LE RTREEXNOCASE.
+|   3408: 19 05 00 25 0f 17 45 4e 41 42 4c 45 20 52 54 52   ...%..ENABLE RTR
+|   3424: 45 45 58 52 54 52 49 4d 1a 18 05 00 29 0f 19 45   EEXRTRIM....)..E
+|   3440: 4e 41 42 4c 45 20 4d 45 4d 53 59 53 35 58 42 49   NABLE MEMSYS5XBI
+|   3456: 4e 41 52 59 1a 17 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3472: 42 60 2d 45 4d 53 59 53 35 58 4e 4f 43 41 53 45   B`-EMSYS5XNOCASE
+|   3488: 19 16 05 00 29 0f 17 45 4e 41 42 4c 45 20 4d 45   ....)..ENABLE ME
+|   3504: 4d 53 59 53 35 58 52 54 52 49 4d 18 15 05 00 25   MSYS5XRTRIM....%
+|   3520: 0f 19 45 4e 41 42 4c 45 20 4a 53 4f 4e 31 58 42   ..ENABLE JSON1XB
+|   3536: 49 4e 41 52 59 18 14 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3552: 4c 45 20 4a 53 4f 4e 31 58 4e 4f 43 41 53 45 17   LE JSON1XNOCASE.
+|   3568: 13 05 00 25 0f 17 45 4e 41 42 4c 45 20 4a 53 4f   ...%..ENABLE JSO
+|   3584: 4e 31 58 52 54 52 49 4d 1a 12 05 00 29 0f 19 45   N1XRTRIM....)..E
+|   3600: 4e 41 42 4c 45 20 47 45 4f 50 4f 4c 59 58 42 49   NABLE GEOPOLYXBI
+|   3616: 4e 41 52 59 1a 11 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3632: 45 20 47 45 4f 50 4f 4c 59 58 4e 4f 43 41 53 45   E GEOPOLYXNOCASE
+|   3648: 19 10 05 00 29 0f 17 45 4e 41 42 4c 45 20 47 45   ....)..ENABLE GE
+|   3664: 4f 50 4f 4c 59 58 52 54 52 49 4d 0f 86 00 94 23   OPOLYXRTRIM....#
+|   3680: 0f 19 45 4e 41 42 4c 45 20 46 54 53 35 58 42 49   ..ENABLE FTS5XBI
+|   3696: 4e 41 52 59 00 00 00 7b 23 0f 19 45 4e 41 42 4c   NARY....#..ENABL
+|   3712: 45 20 46 54 53 35 58 4e 4f 43 41 53 45 00 00 00   E FTS5XNOCASE...
+|   3728: 62 23 0f 17 45 4e 41 42 4c 45 20 46 54 53 35 58   b#..ENABLE FTS5X
+|   3744: 52 54 52 49 4d 00 00 00 4a 23 0f 19 45 4e 41 42   RTRIM...J#..ENAB
+|   3760: 4c 45 20 46 54 53 34 58 42 49 4e 41 52 59 00 00   LE FTS4XBINARY..
+|   3776: 00 31 23 0f 19 45 4e 41 42 4c 45 20 46 54 53 34   .1#..ENABLE FTS4
+|   3792: 58 4e 4f 43 41 53 45 00 00 00 18 23 0f 17 45 4e   XNOCASE....#..EN
+|   3808: 41 42 4c 45 20 46 54 53 34 58 52 54 52 49 4d 1e   ABLE FTS4XRTRIM.
+|   3824: 09 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3840: 54 41 54 20 56 54 41 42 58 42 49 4e 41 52 59 1e   TAT VTABXBINARY.
+|   3856: 08 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3872: 54 41 54 20 56 54 24 15 48 4e 4f 43 41 53 45 1d   TAT VT$.HNOCASE.
+|   3888: 07 05 00 31 0f 17 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3904: 54 41 54 20 56 54 41 42 58 52 54 52 49 4d 11 06   TAT VTABXRTRIM..
+|   3920: 05 00 17 0f 19 44 45 42 55 47 58 42 49 4e 41 52   .....DEBUGXBINAR
+|   3936: 59 11 05 05 00 17 0f 19 44 45 42 55 47 58 4e 4f   Y.......DEBUGXNO
+|   3952: 43 41 53 45 10 04 05 00 17 0f 17 44 45 42 55 47   CASE.......DEBUG
+|   3968: 58 52 54 52 49 4d 00 00 00 29 43 0f 19 43 4f 4d   XRTRIM...)C..COM
+|   3984: 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e 30 20   PILER=gcc-5.4.0 
+|   4000: 32 30 31 36 30 36 30 39 58 42 49 4e 41 52 59 27   20160609XBINARY'
+|   4016: 02 05 00 43 0f 19 43 4f 4d 50 49 4c 45 52 3d 67   ...C..COMPILER=g
+|   4032: 63 63 2d 35 2e 34 2e 30 20 32 30 31 36 30 36 30   cc-5.4.0 2016060
+|   4048: 39 58 4e 4f 43 41 53 45 26 01 05 00 43 0f 17 43   9XNOCASE&...C..C
+|   4064: 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e   OMPILER=gcc-5.4.
+|   4080: 30 20 32 30 31 36 30 36 30 39 58 52 54 52 49 4d   0 20160609XRTRIM
+| page 6 offset 20480
+|      0: 0d 0f 88 00 1e 0e e0 00 0f f8 0f f0 0f b0 0f e0   ................
+|     16: 0f d8 0f d0 0f c8 0f c0 0f b8 0f 80 0f 78 0f 70   .............x.p
+|     32: 0f 68 0f 60 0f 58 0f 50 0f 48 0f 40 0f 38 0f 30   .h.`.X.P.H.@.8.0
+|     48: 0f 28 0f 20 0f 18 0f 10 0f 08 0f 00 0e f8 0e f0   .(. ............
+|     64: 0e e8 0e e0 0e e0 0e e0 0e e0 0e e0 0e e0 0e e0   ................
+|   3808: 06 24 03 00 12 02 01 01 06 23 03 00 12 02 01 01   .$.......#......
+|   3824: 06 22 03 00 12 02 01 01 06 21 03 00 12 03 01 01   .........!......
+|   3840: 06 20 03 00 12 03 01 01 06 1f 03 00 12 03 01 01   . ..............
+|   3856: 06 1e 03 00 12 03 01 01 06 1d 03 00 12 03 01 01   ................
+|   3872: 06 1c 03 00 12 03 01 01 06 1b 03 00 12 02 01 01   ................
+|   3888: 06 1a 03 00 12 02 01 01 06 19 03 00 12 02 01 01   ................
+|   3904: 06 18 03 00 12 02 01 01 06 17 03 00 12 02 01 01   ................
+|   3920: 06 16 03 00 12 02 01 01 06 15 03 00 12 02 01 01   ................
+|   3936: 06 14 03 00 12 02 01 01 06 13 03 00 12 02 01 01   ................
+|   3952: 06 12 03 00 12 02 01 01 06 11 03 00 12 02 01 01   ................
+|   3968: 06 10 03 00 12 02 01 01 0f e8 00 28 12 02 01 01   ...........(....
+|   3984: 00 00 00 28 12 02 01 01 00 00 00 20 12 02 01 01   ...(....... ....
+|   4000: 00 00 00 18 12 02 01 01 00 00 00 10 12 02 01 01   ................
+|   4016: 06 03 03 00 12 06 02 01 06 09 03 00 12 03 01 01   ................
+|   4032: 06 08 03 00 12 03 01 01 06 07 03 00 12 03 01 01   ................
+|   4048: 06 06 03 00 12 01 01 01 06 05 03 00 12 01 01 01   ................
+|   4064: 06 04 03 00 12 01 01 01 00 00 00 08 12 06 01 01   ................
+|   4080: 06 02 03 00 12 06 01 01 06 01 03 00 12 06 01 01   ................
+| page 7 offset 24576
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 8 offset 28672
+|      0: 0d 00 00 00 03 0f d6 00 0f f4 0f e9 0f d6 00 00   ................
+|   4048: 00 00 00 00 00 00 11 03 02 2b 69 6e 74 65 67 72   .........+integr
+|   4064: 69 74 79 2d 63 68 65 63 6b 09 02 02 1b 72 65 62   ity-check....reb
+|   4080: 75 69 6c 64 0a 01 02 1d 6f 70 74 69 6d 69 7a 65   uild....optimize
+| end c30b.db
+}]} {}
+
+do_catchsql_test 26.1 {
+  BEGIN;
+    INSERT INTO t1(t1) VALUES('rebuild');
+    INSERT INTO t1(t1) VALUES('integrity-check');
+  COMMIT;
+} {0 {}}
+
+#--------------------------------------------------------------------------
+reset_db
+do_test 27.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 32768 pagesize 4096 filename timeout-2ca5b0658c98.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 08   .....@  ........
+|     32: 00 00 00 02 00 00 00 01 00 00 00 09 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 0f c7 00 07 0d 92 00 0f 8d 0f 36   ...............6
+|    112: 0e cb 0e 6b 0e 0e 0d b6 0d 92 0d 92 00 00 00 00   ...k............
+|   3472: 00 00 22 08 06 17 11 11 01 31 74 61 62 6c 65 74   .........1tablet
+|   3488: 32 74 32 08 43 52 45 41 54 45 20 54 41 42 4c 45   2t2.CREATE TABLE
+|   3504: 20 74 32 28 78 29 56 07 06 17 1f 1f 01 7d 74 61    t2(x)V.......ta
+|   3520: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   blet1_configt1_c
+|   3536: 6f 6e 66 69 67 07 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
+|   3552: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
+|   3568: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
+|   3584: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 06    WITHOUT ROWID[.
+|   3600: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64   ..!!...tablet1_d
+|   3616: 6f 63 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65   ocsizet1_docsize
+|   3632: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
+|   3648: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
+|   3664: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
+|   3680: 59 2c 20 73 7a 20 42 4c 4f 42 29 5e 05 07 17 21   Y, sz BLOB)^...!
+|   3696: 21 01 81 07 74 61 62 6c 65 74 31 5f 63 6f 6e 74   !...tablet1_cont
+|   3712: 65 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 05 43 52   entt1_content.CR
+|   3728: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63   EATE TABLE 't1_c
+|   3744: 6f 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47   ontent'(id INTEG
+|   3760: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
+|   3776: 63 30 2c 20 63 31 2c 20 63 32 29 69 04 07 17 19   c0, c1, c2)i....
+|   3792: 19 01 81 2d 74 61 62 6c 65 74 31 5f 69 64 78 74   ...-tablet1_idxt
+|   3808: 31 5f 69 64 78 04 43 52 45 41 54 45 20 54 41 42   1_idx.CREATE TAB
+|   3824: 4c 45 20 27 74 31 5f 69 64 78 27 28 73 65 67 69   LE 't1_idx'(segi
+|   3840: 64 2c 20 74 65 72 6d 2c 20 70 67 6e 6f 2c 20 50   d, term, pgno, P
+|   3856: 52 49 4d 41 52 59 20 4b 45 59 28 73 65 67 69 64   RIMARY KEY(segid
+|   3872: 2c 20 74 65 72 6d 29 29 20 57 49 54 48 4f 55 54   , term)) WITHOUT
+|   3888: 20 52 4f 57 49 44 55 03 07 17 1b 1b 01 81 01 74    ROWIDU........t
+|   3904: 61 62 6c 65 74 31 5f 64 61 74 61 74 31 5f 64 61   ablet1_datat1_da
+|   3920: 74 61 03 43 52 45 41 54 45 20 54 41 42 4c 45 20   ta.CREATE TABLE 
+|   3936: 27 74 31 5f 64 61 74 61 27 28 69 64 20 49 4e 54   't1_data'(id INT
+|   3952: 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59   EGER PRIMARY KEY
+|   3968: 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42 29 38 02 06   , block BLOB)8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 35   LE t1 USING fts5
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 39 00 00 00 00 00   (a,b,c)...9.....
+| page 3 offset 8192
+|      0: 0d 00 00 00 03 0c 94 00 0f e6 0f ef 0c 94 00 00   ................
+|   3216: 00 00 00 00 86 4a 84 80 80 80 80 01 04 00 8d 18   .....J..........
+|   3232: 00 00 03 2b 02 30 30 01 02 06 01 02 06 01 02 06   ...+.00.........
+|   3248: 1f 02 03 01 02 03 01 02 03 01 08 32 30 31 36 30   ...........20160
+|   3264: 36 30 39 01 02 07 01 02 07 01 02 07 01 01 34 01   609...........4.
+|   3280: 02 05 01 02 05 01 02 05 01 01 35 01 02 04 01 02   ..........5.....
+|   3296: 04 01 02 04 02 07 30 30 30 30 30 30 30 1c 02 04   ......0000000...
+|   3312: 01 02 04 01 02 04 01 06 62 69 6e 61 72 79 03 06   ........binary..
+|   3328: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3344: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3360: 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02   ................
+|   3376: 03 06 01 02 02 03 06 01 02 02 01 08 63 6f 6d 70   ............comp
+|   3392: 69 6c 65 72 01 20 01 02 02 02 01 02 02 01 06 64   iler. .........d
+|   3408: 62 73 7c cc cc cc cc cc cc cc cc cc cc cc cc cc   bs|.............
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+|   4080: 0a 03 00 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 4 offset 12288
+|      0: 0a 00 00 00 01 0f fa 00 0f fa 00 00 00 00 00 00   ................
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+| page 5 offset 16384
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+|     16: 0f 61 0f 4e 0f 2f 0f 0f 0e ef 0e d7 0e be 0e a5   .a.N./..........
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+|   3088: 19 54 48 52 45 41 44 53 41 46 45 3d 30 58 42 49   .THREADSAFE=0XBI
+|   3104: 4e 41 52 59 18 23 05 00 25 0f 19 54 48 52 45 41   NARY.#..%..THREA
+|   3120: 44 53 41 46 45 3d 30 58 4e 4f 43 41 53 45 17 22   DSAFE=0XNOCASE..
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+|   3152: 30 58 52 54 52 49 4d 1f 21 05 00 33 0f 19 4f 4d   0XRTRIM.!..3..OM
+|   3168: 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49 4f   IT LOAD EXTENSIO
+|   3184: 4e 58 42 49 4e 41 52 59 1f 20 05 00 33 0f 19 4f   NXBINARY. ..3..O
+|   3200: 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49   MIT LOAD EXTENSI
+|   3216: 4f 4e 58 4e 4f 43 41 53 45 1e 1f 05 00 33 0f 17   ONXNOCASE....3..
+|   3232: 4f 4d 49 54 20 4c 4f 41 44 20 45 5f e8 54 45 4e   OMIT LOAD E_.TEN
+|   3248: 53 49 4f 4e 58 52 54 52 49 4d 1f 1e 05 00 33 0f   SIONXRTRIM....3.
+|   3264: 19 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 31 81   .MAX MEMORY=501.
+|   3280: 40 50 02 50 f1 94 54 e4 14 24 c4 52 04 a5 35 f4   @P.P..T..$.R..5.
+|   3296: e3 15 84 e4 f4 34 15 34 51 71 30 50 02 50 f1 74   .....4.4Qq0P.P.t
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+|   3552: 45 33 45 85 25 45 24 94 d1 e0 90 50 03 10 f1 94   E3E.%E$....P....
+|   3568: 54 e4 42 4c 45 20 44 42 53 54 41 54 20 56 54 41   T.BLE DBSTAT VTA
+|   3584: 42 58 42 49 4e 41 52 59 1e 08 05 00 31 0f 19 45   BXBINARY....1..E
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+|   3664: 25 54 75 84 24 94 e4 15 25 91 10 50 50 01 70 f1   %Tu.$...%..PP.p.
+|   3680: 94 44 54 25 54 75 84 e4 f4 34 15 34 51 00 40 50   .DT%Tu...4.4Q.@P
+|   3696: 01 70 f1 74 44 54 25 54 75 85 25 45 24 94 d2 70   .p.tDT%Tu.%E$..p
+|   3712: 30 50 04 30 f1 94 34 f4 d5 04 94 c4 55 23 d6 76   0P.0..4.....U#.v
+|   3728: 36 32 d3 52 e3 42 e3 02 03 23 03 13 63 03 63 03   62.R.B...#..c.c.
+|   3744: 95 84 24 94 e4 15 25 92 70 20 50 04 30 f1 94 34   ..$...%.p P.0..4
+|   3760: f4 d5 04 94 c4 53 30 01 00 00 10 10 04 02 02 00   .....S0.........
+|   3776: 00 00 00 00 00 00 00 80 00 00 00 20 00 00 00 10   ........... ....
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+| page 6 offset 20480
+|   3808: 06 24 03 00 12 02 01 01 06 23 03 00 12 02 01 01   .$.......#......
+|   3824: 06 22 03 00 12 02 01 01 06 21 03 00 12 03 01 01   .........!......
+|   3840: 06 20 03 00 12 03 01 01 06 1f 03 00 12 03 01 01   . ..............
+|   3856: 06 1e 03 00 12 03 01 01 06 1d 03 00 12 03 01 01   ................
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+|   3984: 06 0e 03 00 12 02 01 01 06 0d 03 00 12 02 01 01   ................
+|   4000: 06 0c 03 00 12 02 01 01 06 0b 03 00 12 02 01 01   ................
+|   4016: 06 0a 03 00 12 02 01 01 06 09 03 00 12 03 01 01   ................
+|   4032: 06 08 03 00 12 03 01 01 06 07 03 00 12 03 01 01   ................
+|   4048: 06 06 03 00 12 01 01 01 06 05 03 00 12 01 01 01   ................
+|   4064: 06 04 03 00 12 01 01 01 06 03 03 00 12 06 01 01   ................
+|   4080: 06 02 03 00 12 06 01 01 06 01 03 00 12 06 01 01   ................
+| page 7 offset 24576
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 8 offset 28672
+|      0: 0d 00 00 00 03 0f d6 00 0f f4 0f e9 0f d6 00 00   ................
+|   4048: 00 00 00 00 00 00 11 03 02 2b 69 6e 74 65 67 72   .........+integr
+|   4064: 69 74 79 2d 63 68 65 63 6b 09 02 02 1b 72 65 62   ity-check....reb
+|   4080: 75 69 6c 64 0a 01 02 1d 6f 70 74 69 6d 69 7a 65   uild....optimize
+| end timeout-2ca5b0658c98.db
+}]} {}
+
+do_catchsql_test 27.1 {
+  DELETE FROM t1 WHERE a MATCH 'fts*';
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 28.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 40960 pagesize 4096 filename crash-e2d47e0624a42c.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 0a   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 0d 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 00 00 00 0d 0b 6e 00 0f a3 0f 4c   ..........n....L
+|    112: 0e e1 0e 81 0e 24 0d cc 0d 72 0d 1b 0c b0 0c 50   .....$...r.....P
+|    128: 0b f8 0b b3 0b 6e 00 00 00 00 00 00 00 00 00 00   .....n..........
+|   2912: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 43 0d   ..............C.
+|   2928: 06 17 11 11 08 75 74 61 62 6c 65 74 34 74 34 43   .....utablet4t4C
+|   2944: 52 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41   REATE VIRTUAL TA
+|   2960: 42 4c 45 20 74 34 20 55 53 49 4e 47 20 66 74 73   BLE t4 USING fts
+|   2976: 35 76 6f 63 61 62 28 27 74 32 27 2c 20 27 72 6f   5vocab('t2', 'ro
+|   2992: 77 27 29 43 0c 06 17 11 11 08 75 74 61 62 6c 65   w')C......utable
+|   3008: 74 33 74 33 43 52 45 41 54 45 20 56 49 52 54 55   t3t3CREATE VIRTU
+|   3024: 41 4c 20 54 41 42 4c 45 20 74 33 20 55 53 49 4e   AL TABLE t3 USIN
+|   3040: 47 20 66 74 73 35 76 6f 63 61 62 28 27 74 31 27   G fts5vocab('t1'
+|   3056: 2c 20 27 72 6f 77 27 29 56 0b 06 17 1f 1f 01 7d   , 'row')V.......
+|   3072: 74 61 62 6c 65 74 32 5f 63 6f 6e 66 69 67 74 32   tablet2_configt2
+|   3088: 5f 63 6f 6e 66 69 67 0a 43 52 45 41 54 45 20 54   _config.CREATE T
+|   3104: 41 42 4c 45 20 27 74 32 5f 63 6f 6e 66 69 67 27   ABLE 't2_config'
+|   3120: 28 6b 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   (k PRIMARY KEY, 
+|   3136: 76 29 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44   v) WITHOUT ROWID
+|   3152: 5e 0a 07 17 21 21 01 81 07 74 61 62 6c 65 74 32   ^...!!...tablet2
+|   3168: 5f 63 6f 6e 74 65 6e 74 74 32 5f 63 6f 6e 74 65   _contentt2_conte
+|   3184: 6e 74 09 43 52 45 41 54 45 20 54 41 42 4c 45 20   nt.CREATE TABLE 
+|   3200: 27 74 32 5f 63 6f 6e 74 65 6e 74 27 28 69 64 20   't2_content'(id 
+|   3216: 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59 20   INTEGER PRIMARY 
+|   3232: 4b 45 59 2c 20 63 30 2c 20 63 31 2c 20 63 32 29   KEY, c0, c1, c2)
+|   3248: 69 09 07 17 19 19 01 81 2d 74 61 62 6c 65 74 32   i.......-tablet2
+|   3264: 5f 69 64 78 74 32 5f 69 64 78 08 43 52 45 41 54   _idxt2_idx.CREAT
+|   3280: 45 20 54 41 42 4c 45 20 27 74 32 5f 69 64 78 27   E TABLE 't2_idx'
+|   3296: 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20 70 67   (segid, term, pg
+|   3312: 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45 59 28   no, PRIMARY KEY(
+|   3328: 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20 57 49   segid, term)) WI
+|   3344: 54 48 4f 55 54 20 52 4f 57 49 44 55 08 07 17 1b   THOUT ROWIDU....
+|   3360: 1b 01 81 01 74 61 62 6c 65 74 32 5f 64 61 74 61   ....tablet2_data
+|   3376: 74 32 5f 64 61 74 61 07 43 52 45 41 54 45 20 54   t2_data.CREATE T
+|   3392: 41 42 4c 45 20 27 74 32 5f 64 61 74 61 27 28 69   ABLE 't2_data'(i
+|   3408: 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52   d INTEGER PRIMAR
+|   3424: 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c 4f   Y KEY, block BLO
+|   3440: 42 29 58 07 07 17 11 11 08 81 1d 74 61 62 6c 65   B)X........table
+|   3456: 74 32 74 32 43 52 45 41 54 45 20 56 49 52 54 55   t2t2CREATE VIRTU
+|   3472: 41 4c 20 54 41 42 4c 45 20 74 32 20 55 53 49 4e   AL TABLE t2 USIN
+|   3488: 47 20 66 74 73 35 28 27 61 27 2c 5b 62 5d 2c 22   G fts5('a',[b],.
+|   3504: 63 22 2c 64 65 74 61 69 6c 3d 6e 6f 6e 65 2c 63   c.,detail=none,c
+|   3520: 6f 6c 75 6d 6e 73 69 7a 65 3d 30 29 56 06 06 17   olumnsize=0)V...
+|   3536: 1f 1f 01 7d 74 61 62 6c 65 74 31 5f 63 6f 6e 66   ....tablet1_conf
+|   3552: 69 67 74 31 5f 63 6f 6e 66 69 67 06 43 52 45 41   igt1_config.CREA
+|   3568: 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63 6f 6e   TE TABLE 't1_con
+|   3584: 66 69 67 27 28 6b 20 50 52 49 4d 41 52 59 20 4b   fig'(k PRIMARY K
+|   3600: 45 59 2c 20 76 29 20 57 49 54 48 4f 55 54 20 52   EY, v) WITHOUT R
+|   3616: 4f 57 49 44 5b 05 07 17 21 21 01 81 01 74 61 62   OWID[...!!...tab
+|   3632: 6c 65 74 31 5f 64 6f 63 73 69 7a 65 74 31 5f 64   let1_docsizet1_d
+|   3648: 6f 63 73 69 7a 65 05 43 52 45 41 54 45 20 54 41   ocsize.CREATE TA
+|   3664: 42 4c 45 20 27 74 31 5f 64 6f 63 73 69 7a 65 27   BLE 't1_docsize'
+|   3680: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   (id INTEGER PRIM
+|   3696: 41 52 59 20 4b 45 59 2c 20 73 7a 20 42 4c 4f 42   ARY KEY, sz BLOB
+|   3712: 29 5e 04 07 17 21 21 01 81 07 74 61 62 6c 65 74   )^...!!...tablet
+|   3728: 31 5f 63 6f 6e 74 65 6e 74 74 31 5f 63 6f 6e 74   1_contentt1_cont
+|   3744: 65 6e 74 04 43 52 45 41 54 45 20 54 41 42 4c 45   ent.CREATE TABLE
+|   3760: 20 27 74 31 5f 63 6f 6e 74 65 6e 74 27 28 69 64    't1_content'(id
+|   3776: 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59    INTEGER PRIMARY
+|   3792: 20 4b 45 59 2c 20 63 30 2c 20 63 31 2c 20 63 32    KEY, c0, c1, c2
+|   3808: 29 69 03 07 17 19 19 01 81 2d 74 61 62 6c 65 74   )i.......-tablet
+|   3824: 31 5f 69 64 78 74 31 5f 69 64 78 03 43 52 45 41   1_idxt1_idx.CREA
+|   3840: 54 45 20 54 41 42 4c 45 20 27 74 31 5f 69 64 78   TE TABLE 't1_idx
+|   3856: 27 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20 70   '(segid, term, p
+|   3872: 67 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45 59   gno, PRIMARY KEY
+|   3888: 28 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20 57   (segid, term)) W
+|   3904: 49 54 48 4f 55 54 20 52 4f 57 49 44 55 02 07 17   ITHOUT ROWIDU...
+|   3920: 1b 1b 01 81 01 74 61 62 6c 65 74 31 5f 64 61 74   .....tablet1_dat
+|   3936: 61 74 31 5f 64 61 74 61 02 43 52 45 41 54 45 20   at1_data.CREATE 
+|   3952: 54 41 42 4c 45 20 27 74 31 5f 64 61 74 61 27 28   TABLE 't1_data'(
+|   3968: 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41   id INTEGER PRIMA
+|   3984: 52 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c   RY KEY, block BL
+|   4000: 4f 42 29 5b 01 07 17 11 11 08 81 23 74 61 62 6c   OB)[.......#tabl
+|   4016: 65 74 31 74 31 43 52 45 41 54 45 20 56 49 52 54   et1t1CREATE VIRT
+|   4032: 55 41 4c 20 54 41 42 4c 45 20 74 31 20 55 53 49   UAL TABLE t1 USI
+|   4048: 4e 47 20 66 74 73 35 28 61 2c 62 20 75 6e 69 6e   NG fts5(a,b unin
+|   4064: 64 65 78 65 64 2c 63 2c 74 6f 6b 65 6e 69 7a 65   dexed,c,tokenize
+|   4080: 3d 22 70 6f 72 74 65 72 20 61 73 63 69 69 22 29   =.porter ascii.)
+| page 2 offset 4096
+|      0: 0d 0f 68 00 05 0f 13 00 0f e6 0f 13 0f a8 0f 7c   ..h............|
+|     16: 0f 2a 00 00 00 00 00 00 00 00 00 00 00 00 00 00   .*..............
+|   3856: 00 00 00 15 0a 03 00 30 00 00 00 00 01 03 03 00   .......0........
+|   3872: 03 01 01 01 02 01 01 03 01 01 37 8c 80 80 80 80   ..........7.....
+|   3888: 01 03 00 74 00 00 00 2e 02 30 61 03 02 02 01 01   ...t.....0a.....
+|   3904: 62 03 02 03 01 01 63 03 02 04 01 01 67 03 06 01   b.....c.....g...
+|   3920: 02 02 01 01 68 03 06 01 02 03 01 01 69 03 06 01   ....h.......i...
+|   3936: 02 04 04 06 06 06 08 08 0f ef 00 14 2a 00 00 00   ............*...
+|   3952: 00 01 02 02 00 02 01 01 01 02 01 01 25 88 80 80   ............%...
+|   3968: 80 80 01 03 00 50 00 00 00 1f 02 30 67 02 08 02   .....P.....0g...
+|   3984: 01 02 02 01 01 68 02 08 03 01 02 03 01 01 69 02   .....h........i.
+|   4000: 08 04 01 02 04 04 09 09 37 84 80 80 80 80 01 03   ........7.......
+|   4016: 00 74 00 00 00 2e 02 30 61 01 02 02 01 01 62 01   .t.....0a.....b.
+|   4032: 02 03 01 01 63 01 02 04 01 01 67 01 06 01 02 20   ....c.....g.... 
+|   4048: 10 16 80 10 60 10 20 30 10 16 90 10 60 10 20 40   ....`. 0....`. @
+|   4064: 40 60 60 60 80 80 70 10 30 01 40 30 90 00 90 00   @```..p.0.@0....
+|   4080: 00 01 12 40 00 00 00 00 10 10 10 00 10 10 10 10   ...@............
+| page 3 offset 8192
+|      0: a0 00 00 00 30 fe c0 00 ff a0 ff 30 fe 00 00 00   ....0......0....
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 00 06 04 01 0c   ................
+|   4080: 01 03 02 06 04 01 0c 01 02 02 05 04 09 0c 01 02   ................
+| page 4 offset 12288
+|      0: 0d 00 00 00 03 0f be 00 0f ea 0f d4 0f be 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 14 03   ................
+|   4032: 05 00 17 17 17 61 20 62 20 63 67 20 68 20 69 67   .....a b cg h ig
+|   4048: 20 68 20 69 14 02 05 00 17 17 17 67 20 68 20 69    h i.......g h i
+|   4064: 61 20 62 20 63 67 20 68 20 69 14 01 05 00 17 17   a b cg h i......
+|   4080: 17 61 20 62 20 63 64 20 65 20 66 67 20 68 20 69   .a b cd e fg h i
+| page 5 offset 16384
+|      0: 0d 00 00 00 03 0f e8 00 0f f8 0f f0 0f e8 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 06 03 03 00 12 03 00 03   ................
+|   4080: 06 02 03 00 12 03 00 03 06 01 03 00 12 03 00 03   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 7 offset 24576
+|      0: 0d 00 00 00 03 0f 9e 00 0f e6 0f ef 0f 9e 00 00   ................
+|   3984: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 41 84   ..............A.
+|   4000: 80 80 80 80 01 04 00 81 06 00 00 00 34 02 30 61   ............4.0a
+|   4016: 01 01 01 01 01 62 01 01 01 01 01 63 01 01 01 01   .....b.....c....
+|   4032: 01 64 01 01 01 65 01 01 01 66 01 01 01 01 01 68   .d...e...f.....h
+|   4048: 01 01 01 01 01 69 01 01 01 04 06 06 06 04 04 04   .....i..........
+|   4064: 06 06 07 01 03 00 14 03 09 09 09 0f 0a 03 00 24   ...............$
+|   4080: 00 00 00 00 01 01 01 00 01 01 01 01 0a 00 00 00   ................
+| page 8 offset 28672
+|      0: 01 0f fa 00 0f fa 00 00 00 00 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
+| page 9 offset 32768
+|      0: 0d 00 00 00 03 0f be 00 0f ea 0f d4 1f be 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 14 03   ................
+|   4032: 05 00 17 17 17 61 20 62 20 63 67 20 68 20 69 67   .....a b cg h ig
+|   4048: 20 68 20 69 14 02 05 00 17 17 17 67 20 68 20 69    h i.......g h i
+|   4064: 61 20 62 20 63 67 20 68 20 69 14 01 05 00 17 17   a b cg h i......
+|   4080: 17 61 20 62 20 63 64 20 65 20 66 67 20 68 20 69   .a b cd e fg h i
+| page 10 offset 36864
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| end crash-e2d47e0624a42c.db
+}]} {}
+
+do_catchsql_test 28.1 {
+  SELECT count( fts5_decode(id, block) ) FROM t2_data;
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 29.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 28672 pagesize 4096 filename crash-e114c036e13dde.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 07   .....@  ........
+|     32: 00 00 00 02 00 00 00 01 00 00 00 08 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 0f c7 00 06 0d b6 00 0f 8d 0f 36   ...............6
+|    112: 0e cb 0e 6b 0e 0e 0d b6 0d b6 00 00 00 00 00 00   ...k............
+|   3504: 00 00 00 00 00 00 56 07 06 17 1f 1f 01 7d 74 61   ......V.......ta
+|   3520: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   blet1_configt1_c
+|   3536: 6f 6e 66 69 67 07 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
+|   3552: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
+|   3568: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
+|   3584: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 06    WITHOUT ROWID[.
+|   3600: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64   ..!!...tablet1_d
+|   3616: 6f 63 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65   ocsizet1_docsize
+|   3632: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
+|   3648: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
+|   3664: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
+|   3680: 59 2c 20 73 7a 20 42 4c 4f 42 29 5e 05 07 17 21   Y, sz BLOB)^...!
+|   3696: 21 01 81 07 74 61 62 6c 65 74 31 5f 63 6f 6e 74   !...tablet1_cont
+|   3712: 65 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 05 43 52   entt1_content.CR
+|   3728: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63   EATE TABLE 't1_c
+|   3744: 6f 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47   ontent'(id INTEG
+|   3760: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
+|   3776: 63 30 2c 20 63 31 2c 20 63 32 29 69 04 07 17 19   c0, c1, c2)i....
+|   3792: 19 01 81 2d 74 61 62 6c 65 74 31 5f 69 64 78 74   ...-tablet1_idxt
+|   3808: 31 5f 69 64 78 04 43 52 45 41 54 45 20 54 41 42   1_idx.CREATE TAB
+|   3824: 4c 45 20 27 74 31 5f 69 64 78 27 28 73 65 67 69   LE 't1_idx'(segi
+|   3840: 64 2c 20 74 65 72 6d 2c 20 70 67 6e 6f 2c 20 50   d, term, pgno, P
+|   3856: 52 49 4d 41 52 59 20 4b 45 59 28 73 65 67 69 64   RIMARY KEY(segid
+|   3872: 2c 20 74 65 72 6d 29 29 20 57 49 54 48 4f 55 54   , term)) WITHOUT
+|   3888: 20 52 4f 57 49 44 55 03 07 17 1b 1b 01 81 01 74    ROWIDU........t
+|   3904: 61 62 6c 65 74 31 5f 64 61 74 61 74 31 5f 64 61   ablet1_datat1_da
+|   3920: 74 61 03 43 52 45 41 54 45 20 54 41 42 4c 45 20   ta.CREATE TABLE 
+|   3936: 27 74 31 5f 64 61 74 61 27 28 69 64 20 49 4e 54   't1_data'(id INT
+|   3952: 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59   EGER PRIMARY KEY
+|   3968: 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42 29 38 02 06   , block BLOB)8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 35   LE t1 USING fts5
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 39 00 00 00 00 00   (a,b,c)...9.....
+| page 3 offset 8192
+|      0: 0d 00 00 00 03 0c af 00 0f e6 0f ef 0c af 00 00   ................
+|   3232: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 86   ................
+|   3248: 2f 84 80 80 80 80 01 04 00 8c 62 00 00 03 12 02   /.........b.....
+|   3264: 30 30 01 04 05 03 01 04 05 03 01 04 05 03 1f 02   00..............
+|   3280: 03 01 02 03 01 02 03 01 08 35 30 30 30 30 30 30   .........5000000
+|   3296: 30 1c 02 04 01 02 04 01 02 04 01 01 36 01 02 04   0...........6...
+|   3312: 01 02 04 01 02 04 01 06 62 69 6e 61 72 79 03 06   ........binary..
+|   3328: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3344: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3360: 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02   ................
+|   3376: 03 06 01 02 02 03 06 01 02 02 01 05 63 6c 61 6e   ............clan
+|   3392: 67 01 02 03 01 02 03 01 02 03 02 07 6f 6d 70 69   g...........ompi
+|   3408: 6c 65 72 01 02 02 01 02 02 01 02 02 01 06 64 62   ler...........db
+|   3424: 73 74 61 74 07 02 03 01 02 03 01 02 03 02 04 65   stat...........e
+|   3440: 62 75 67 04 02 02 01 02 02 01 02 02 01 06 65 6e   bug...........en
+|   3456: 61 62 6c 65 07 02 02 01 02 02 01 02 02 01 02 02   able............
+|   3472: 01 02 02 01 02 02 01 02 02 01 02 02 01 02 02 01   ................
+|   3488: 02 02 01 02 02 01 02 02 01 02 02 01 02 02 01 02   ................
+|   3504: 02 01 02 02 01 02 02 01 02 02 01 02 02 01 02 02   ................
+|   3520: 01 02 02 02 08 78 74 65 6e 73 69 6f 6e 1f 02 04   .....xtension...
+|   3536: 01 02 04 01 02 04 01 04 66 74 73 34 0a 02 03 03   ........fts4....
+|   3552: 01 02 01 02 03 04 01 35 0d 02 03 01 02 03 01 02   .......5........
+|   3568: 03 01 07 67 65 6f 70 6f 6c 79 10 02 03 01 02 03   ...geopoly......
+|   3584: 01 02 03 01 05 6a 73 6f 6e 31 13 02 03 01 02 03   .....json1......
+|   3600: 01 02 03 01 04 6c 6f 61 64 1f 02 03 01 02 03 01   .....load.......
+|   3616: 02 03 01 03 6d 61 78 1c 02 02 01 02 02 01 02 02   ....max.........
+|   3632: 02 05 65 6d 6f 72 79 1c 02 03 01 02 03 01 02 03   ..emory.........
+|   3648: 04 04 73 79 73 35 16 02 03 01 02 03 01 02 03 01   ..sys5..........
+|   3664: 06 6e 6f 63 61 73 65 02 06 01 02 02 03 06 01 02   .nocase.........
+|   3680: 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02   ................
+|   3696: 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02 03   ................
+|   3712: 06 01 02 02 03 06 01 02 02 03 06 01 12 02 03 06   ................
+|   3728: 01 02 02 01 04 6f 6d 69 74 1f 02 02 01 02 02 01   .....omit.......
+|   3744: 02 02 01 05 72 74 72 65 65 19 02 03 01 02 03 01   ....rtree.......
+|   3760: 02 03 04 02 69 6d 01 06 01 02 02 03 06 01 02 02   ....im..........
+|   3776: 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02 03   ................
+|   3792: 06 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06   ................
+|   3808: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3824: 02 02 01 0a 74 68 72 65 61 64 73 61 66 65 22 02   ....threadsafe..
+|   3840: 02 01 02 02 01 02 02 01 04 76 74 61 62 07 02 04   .........vtab...
+|   3856: 01 02 04 01 02 04 01 01 78 01 06 01 01 02 01 06   ........x.......
+|   3872: 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01   ................
+|   3888: 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01   ................
+|   3904: 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02   ................
+|   3920: 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01   ................
+|   3936: 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06   ................
+|   3952: 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01   ................
+|   3968: 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01   ................
+|   3984: 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02   ................
+|   4000: 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01   ................
+|   4016: 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06   ................
+|   4032: 01 01 02 01 06 01 01 02 01 06 01 01 02 04 18 13   ................
+|   4048: 0c 44 10 12 11 0f 47 13 0f 0c 12 10 0f 0e 10 0f   .D....G.........
+|   4064: 44 0f 10 40 15 0f 07 01 03 00 14 24 57 24 24 0f   D..@.......$W$$.
+|   4080: 0a 03 00 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 4 offset 12288
+|      0: 0a 00 00 00 01 0f fa 00 0f fa 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
+| page 5 offset 16384
+|      0: 0d 00 00 00 24 0c 1f 00 0f df 0f bd 0f 9b 0f 89   ....$...........
+|     16: 0f 76 0f 63 0f 44 0f 24 0f 04 0e ec 0e d3 0e ba   .v.c.D.$........
+|     32: 0e a2 0e 89 0e 70 e5 50 e3 90 e1 d0 e0 40 de a0   .....p.P.....@..
+|     48: dd 00 db 50 d9 90 d7 ea ca ea be d0 d6 40 d4 a0   ...P.........@..
+|     64: d3 00 d1 00 ce f0 cc e0 ca e0 c8 d0 c6 c0 c5 30   ...............0
+|     80: c3 90 c1 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   3088: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 18   ................
+|   3104: 24 05 00 25 0f 19 54 48 52 45 41 44 53 41 46 45   $..%..THREADSAFE
+|   3120: 3d 30 58 42 49 4e 41 52 59 18 23 05 00 25 0f 19   =0XBINARY.#..%..
+|   3136: 54 48 52 45 41 44 53 41 46 45 3d 30 58 4e 4f 43   THREADSAFE=0XNOC
+|   3152: 41 53 45 17 22 05 00 25 0f 17 54 48 52 45 41 44   ASE....%..THREAD
+|   3168: 53 41 46 45 3d 30 05 00 33 0f 19 4f 4d 49 54 20   SAFE=0..3..OMIT 
+|   3184: 4c 4f 41 44 20 45 58 54 45 4e 53 49 4f 4e 58 42   LOAD EXTENSIONXB
+|   3200: 49 4e 41 52 59 1f 20 05 00 33 0f 19 4f 4d 49 54   INARY. ..3..OMIT
+|   3216: 20 4c 4f 41 44 20 45 58 54 45 4e 53 49 4f 4e 58    LOAD EXTENSIONX
+|   3232: 4e 4f 43 41 53 45 1e 1f 05 00 33 0f 17 4f 4d 49   NOCASE....3..OMI
+|   3248: 54 20 4c f4 14 42 04 55 85 44 54 e5 34 94 f4 e5   T L..B.U.DT.4...
+|   3264: 85 25 45 24 94 d1 f1 e0 50 03 30 f1 94 d4 15 82   .%E$....P.0.....
+|   3280: 04 d4 54 d4 f5 25 93 d3 53 03 03 03 03 03 03 05   ..T..%..S.......
+|   3296: 84 24 94 e4 15 25 91 f1 d0 50 03 30 f1 94 d4 15   .$...%...P.0....
+|   3312: 82 04 d4 54 d4 f5 25 93 d3 53 03 03 03 03 03 03   ...T..%..S......
+|   3328: 05 84 e4 f4 34 15 34 51 e1 c0 50 03 30 f1 74 d4   ....4.4Q..P.0.t.
+|   3344: 15 82 04 d4 54 d4 f2 90 f1 74 54 e4 14 24 c4 52   ....T....tT..$.R
+|   3360: 04 74 54 f5 04 f4 c5 95 85 25 45 24 94 d1 70 f0   .tT......%E$..p.
+|   3376: 50 02 30 f1 94 54 e4 14 24 c4 52 04 65 45 33 55   P.0..T..$.R.eE3U
+|   3392: 84 24 94 e4 15 25 91 70 e0 50 02 30 f1 94 54 e4   .$...%.p.P.0..T.
+|   3408: 14 24 c4 52 04 65 45 33 55 84 e4 f4 34 15 34 51   .$.R.eE3U...4.4Q
+|   3424: 60 d0 50 02 30 f1 74 54 e4 14 24 c4 52 04 65 45   `.P.0.tT..$.R.eE
+|   3440: 33 55 85 25 45 24 94 d1 70 c0 50 02 30 f1 94 54   3U.%E$..p.P.0..T
+|   3456: e4 14 24 c4 52 04 65 45 33 45 84 24 94 e4 15 25   ..$.R.eE3E.$...%
+|   3472: 91 70 b0 50 02 30 f1 94 54 e4 14 24 c4 52 04 65   .p.P.0..T..$.R.e
+|   3488: 45 33 45 84 e4 f4 34 15 34 51 60 a0 74 54 e4 14   E3E...4.4Q`.tT..
+|   3504: 24 c4 52 04 65 45 33 45 85 25 45 24 94 d1 e0 90   $.R.eE3E.%E$....
+|   3520: 50 03 10 f1 94 54 e4 14 24 c4 52 04 44 25 35 44   P....T..$.R.D%5D
+|   3536: 15 42 05 65 44 14 25 84 24 94 e4 15 25 91 e0 80   .B.eD.%.$...%...
+|   3552: 50 03 10 f1 94 54 e4 14 24 c4 52 04 44 25 35 44   P....T..$.R.D%5D
+|   3568: 15 42 05 65 44 14 25 84 e4 f4 34 15 34 51 d0 70   .B.eD.%...4.4Q.p
+|   3584: 50 03 10 f1 74 54 e4 14 24 c4 52 04 44 25 35 44   P...tT..$.R.D%5D
+|   3600: 15 42 05 65 44 14 25 85 25 45 24 94 d1 10 60 50   .B.eD.%.%E$...`P
+|   3616: 01 70 f1 94 44 54 25 54 75 84 24 94 e4 15 25 91   .p..DT%Tu.$...%.
+|   3632: 10 50 50 01 70 f1 94 44 54 25 54 75 84 e4 f4 34   .PP.p..DT%Tu...4
+|   3648: 15 34 51 00 40 50 01 70 f1 74 44 54 25 54 75 85   .4Q.@P.p.tDT%Tu.
+|   3664: 25 45 24 94 d2 00 30 50 03 50 f1 94 34 f4 d5 04   %E$...0P.P..4...
+|   3680: 94 c4 55 23 d6 36 c6 16 e6 72 d3 62 e3 02 e3 05   ..U#.6...r.b....
+|   3696: 84 24 94 e4 15 25 92 00 20 50 03 50 f1 94 34 f4   .$...%.. P.P..4.
+|   3712: d5 04 94 c4 55 23 d6 36 c6 16 e6 72 d3 62 e3 02   ....U#.6...r.b..
+|   3728: e3 05 84 e4 f4 34 15 34 51 f0 10 50 03 50 f1 74   .....4.4Q..P.P.t
+|   3744: 34 f4 d5 04 94 c4 55 23 d6 36 c6 16 e6 72 d3 62   4.....U#.6...r.b
+|   3760: e3 02 e3 05 85 25 45 24 94 d0 d0 00 00 02 40 ee   .....%E$......@.
+|   3776: 00 00 ff 80 ff 00 fe 80 fe 00 fd 80 fd 00 fc 80   ................
+|   3792: fc 00 fb 80 fb 00 fa 80 fa 00 f9 80 f9 00 f8 80   ................
+|   3808: f8 00 f7 80 f7 00 f6 80 f6 00 f5 80 f5 00 f4 80   ................
+|   3824: f4 00 f3 80 f3 00 f2 80 f2 00 f1 80 f1 00 f0 80   ................
+|   3840: f0 00 ef 80 ef 00 ee 80 ee 00 00 00 00 00 00 00   ................
+| page 6 offset 20480
+|   3808: 06 24 03 00 12 02 01 01 06 23 03 00 12 02 01 01   .$.......#......
+|   3824: 06 22 03 00 12 02 01 01 06 21 03 00 12 03 01 01   .........!......
+|   3840: 06 20 03 00 12 03 01 01 06 1f 03 00 12 03 01 01   . ..............
+|   3856: 06 1e 03 00 12 03 01 01 06 1d 03 00 12 03 01 01   ................
+|   3872: 06 1c 03 00 12 03 01 01 06 1b 03 00 12 02 01 01   ................
+|   3888: 06 1a 03 00 12 02 01 01 06 19 03 00 12 02 01 01   ................
+|   3904: 06 18 03 00 12 02 01 01 06 17 03 00 12 02 01 01   ................
+|   3920: 06 16 03 00 12 02 01 01 06 15 03 00 12 02 01 01   ................
+|   3936: 06 14 03 00 12 02 01 01 06 13 03 00 12 02 01 01   ................
+|   3952: 06 12 03 00 12 02 01 01 06 11 03 00 12 02 01 01   ................
+|   3968: 06 10 03 00 12 02 01 01 06 0f 03 00 12 02 01 01   ................
+|   3984: 06 0e 03 00 12 02 01 01 06 0d 03 00 12 02 01 01   ................
+|   4000: 06 0c 03 00 12 02 01 01 06 0b 03 00 12 02 01 01   ................
+|   4016: 06 0a 03 00 12 02 01 01 06 09 03 00 12 03 01 01   ................
+|   4032: 06 08 03 00 12 03 01 01 06 07 03 00 12 03 01 01   ................
+|   4048: 06 06 03 00 12 01 01 01 06 05 03 00 12 01 01 01   ................
+|   4064: 06 04 03 00 12 01 01 01 06 03 03 00 12 05 01 01   ................
+|   4080: 06 02 03 00 12 05 01 01 06 01 03 00 12 05 01 01   ................
+| page 7 offset 24576
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| end crash-e114c036e13dde.db
+}]} {}
+
+do_catchsql_test 29.1 {
+  CREATE VIRTUAL TABLE t3 USING fts5vocab('t1','col');
+} {0 {}}
+do_catchsql_test 29.2 {
+  SELECT rowid, quote(term), * FROM t3 WHERE term=='nocase';
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 30.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 40960 pagesize 4096 filename crash-eef41e30b388a0.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 0a   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 0d 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 00 00 00 0d 0b 6e 00 0f a3 0f 4c   ..........n....L
+|    112: 0e e1 0e 81 0e 24 0d cc 0d 72 0d 1b 0c b0 0c 50   .....$...r.....P
+|    128: 0b f8 0b b3 0b 6e 00 00 00 00 00 00 00 00 00 00   .....n..........
+|   2912: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 43 0d   ..............C.
+|   2928: 06 17 11 11 08 75 74 61 62 6c 65 74 34 74 34 43   .....utablet4t4C
+|   2944: 52 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41   REATE VIRTUAL TA
+|   2960: 42 4c 45 20 74 34 20 55 53 49 4e 47 20 66 74 73   BLE t4 USING fts
+|   2976: 35 76 6f 63 61 62 28 27 74 32 27 2c 20 27 72 6f   5vocab('t2', 'ro
+|   2992: 77 27 29 43 0c 06 17 11 11 08 75 74 61 62 6c 65   w')C......utable
+|   3008: 74 33 74 33 43 52 45 41 54 45 20 56 49 52 54 55   t3t3CREATE VIRTU
+|   3024: 41 4c 20 54 41 42 4c 45 20 74 33 20 55 53 49 4e   AL TABLE t3 USIN
+|   3040: 47 20 66 74 73 35 76 6f 63 61 62 28 27 74 31 27   G fts5vocab('t1'
+|   3056: 2c 20 27 72 6f 77 27 29 56 0b 06 17 1f 1f 01 7d   , 'row')V.......
+|   3072: 74 61 62 6c 65 74 32 5f 63 6f 6e 66 69 67 74 32   tablet2_configt2
+|   3088: 5f 63 6f 6e 66 69 67 0a 43 52 45 41 54 45 20 54   _config.CREATE T
+|   3104: 41 42 4c 45 20 27 74 32 5f 63 6f 6e 66 69 67 27   ABLE 't2_config'
+|   3120: 28 6b 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   (k PRIMARY KEY, 
+|   3136: 76 29 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44   v) WITHOUT ROWID
+|   3152: 5e 0a 07 17 21 21 01 81 07 74 61 62 6c 65 74 32   ^...!!...tablet2
+|   3168: 5f 63 6f 6e 74 65 6e 74 74 32 5f 63 6f 6e 74 65   _contentt2_conte
+|   3184: 6e 74 09 43 52 45 41 54 45 20 54 41 42 4c 45 20   nt.CREATE TABLE 
+|   3200: 27 74 32 5f 63 6f 6e 74 65 6e 74 27 28 69 64 20   't2_content'(id 
+|   3216: 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59 20   INTEGER PRIMARY 
+|   3232: 4b 45 59 2c 20 63 30 2c 20 63 31 2c 20 63 32 29   KEY, c0, c1, c2)
+|   3248: 69 09 07 17 19 19 01 81 2d 74 61 62 6c 65 74 32   i.......-tablet2
+|   3264: 5f 69 64 78 74 32 5f 69 64 78 08 43 52 45 41 54   _idxt2_idx.CREAT
+|   3280: 45 20 54 41 42 4c 45 20 27 74 32 5f 69 64 78 27   E TABLE 't2_idx'
+|   3296: 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20 70 67   (segid, term, pg
+|   3312: 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45 59 28   no, PRIMARY KEY(
+|   3328: 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20 57 49   segid, term)) WI
+|   3344: 54 48 4f 55 54 20 52 4f 57 49 44 55 08 07 17 1b   THOUT ROWIDU....
+|   3360: 1b 01 81 01 74 61 62 6c 65 74 32 5f 64 61 74 61   ....tablet2_data
+|   3376: 74 32 5f 64 61 74 61 07 43 52 45 41 54 45 20 54   t2_data.CREATE T
+|   3392: 41 42 4c 45 20 27 74 32 5f 64 61 74 61 27 28 69   ABLE 't2_data'(i
+|   3408: 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52   d INTEGER PRIMAR
+|   3424: 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c 4f   Y KEY, block BLO
+|   3440: 42 29 58 07 07 17 11 11 08 81 1d 74 61 62 6c 65   B)X........table
+|   3456: 74 32 74 32 43 52 45 41 54 45 20 56 49 52 54 55   t2t2CREATE VIRTU
+|   3472: 41 4c 20 54 41 42 4c 45 20 74 32 20 55 53 49 4e   AL TABLE t2 USIN
+|   3488: 47 20 66 74 73 35 28 27 61 27 2c 5b 62 5d 2c 22   G fts5('a',[b],.
+|   3504: 63 22 2c 64 65 74 61 69 6c 3d 6e 6f 6e 65 2c 63   c.,detail=none,c
+|   3520: 6f 6c 75 6d 6e 73 69 7a 65 3d 30 29 56 06 06 17   olumnsize=0)V...
+|   3536: 1f 1f 01 7d 74 61 62 6c 65 74 31 5f 63 6f 6e 66   ....tablet1_conf
+|   3552: 69 67 74 31 5f 63 6f 6e 66 69 67 06 43 52 45 41   igt1_config.CREA
+|   3568: 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63 6f 6e   TE TABLE 't1_con
+|   3584: 66 69 67 27 28 6b 20 50 52 49 4d 41 52 59 20 4b   fig'(k PRIMARY K
+|   3600: 45 59 2c 20 76 29 20 57 49 54 48 4f 55 54 20 52   EY, v) WITHOUT R
+|   3616: 4f 57 49 44 5b 05 07 17 21 21 01 81 01 74 61 62   OWID[...!!...tab
+|   3632: 6c 65 74 31 5f 64 6f 63 73 69 7a 65 74 31 5f 64   let1_docsizet1_d
+|   3648: 6f 63 73 69 7a 65 05 43 52 45 41 54 45 20 54 41   ocsize.CREATE TA
+|   3664: 42 4c 45 20 27 74 31 5f 64 6f 63 73 69 7a 65 27   BLE 't1_docsize'
+|   3680: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   (id INTEGER PRIM
+|   3696: 41 52 59 20 4b 45 59 2c 20 73 7a 20 42 4c 4f 42   ARY KEY, sz BLOB
+|   3712: 29 5e 04 07 17 21 21 01 81 07 74 61 62 6c 65 74   )^...!!...tablet
+|   3728: 31 5f 63 6f 6e 74 65 6e 74 74 31 5f 63 6f 6e 74   1_contentt1_cont
+|   3744: 65 6e 74 04 43 52 45 41 54 45 20 54 41 42 4c 45   ent.CREATE TABLE
+|   3760: 20 27 74 31 5f 63 6f 6e 74 65 6e 74 27 28 69 64    't1_content'(id
+|   3776: 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59    INTEGER PRIMARY
+|   3792: 20 4b 45 59 2c 20 63 30 2c 20 63 31 2c 20 63 32    KEY, c0, c1, c2
+|   3808: 29 69 03 07 17 19 19 01 81 2d 74 61 62 6c 65 74   )i.......-tablet
+|   3824: 31 5f 69 64 78 74 31 5f 69 64 78 03 43 52 45 41   1_idxt1_idx.CREA
+|   3840: 54 45 20 54 41 42 4c 45 20 27 74 31 5f 69 64 78   TE TABLE 't1_idx
+|   3856: 27 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20 70   '(segid, term, p
+|   3872: 67 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45 59   gno, PRIMARY KEY
+|   3888: 28 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20 57   (segid, term)) W
+|   3904: 49 54 48 4f 55 54 20 52 4f 57 49 44 55 02 07 17   ITHOUT ROWIDU...
+|   3920: 1b 1b 01 81 01 74 61 62 6c 65 74 31 5f 64 61 74   .....tablet1_dat
+|   3936: 61 74 31 5f 64 61 74 61 02 43 52 45 41 54 45 20   at1_data.CREATE 
+|   3952: 54 41 42 4c 45 20 27 74 31 5f 64 61 74 61 27 28   TABLE 't1_data'(
+|   3968: 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41   id INTEGER PRIMA
+|   3984: 52 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c   RY KEY, block BL
+|   4000: 4f 42 29 5b 01 07 17 11 11 08 81 23 74 61 62 6c   OB)[.......#tabl
+|   4016: 65 74 31 74 31 43 52 45 41 54 45 20 56 49 52 54   et1t1CREATE VIRT
+|   4032: 55 41 4c 20 54 41 42 4c 45 20 74 31 20 55 53 49   UAL TABLE t1 USI
+|   4048: 4e 47 20 66 74 73 35 28 61 2c 62 20 75 6e 69 6e   NG fts5(a,b unin
+|   4064: 64 65 78 65 64 2c 63 2c 74 6f 6b 65 6e 69 7a 65   dexed,c,tokenize
+|   4080: 3d 22 70 6f 72 74 65 72 20 61 73 63 69 69 22 29   =.porter ascii.)
+| page 2 offset 4096
+|      0: 0d 0f 68 00 05 0f 13 00 0f e6 0f 13 0f a8 0f 7c   ..h............|
+|     16: 0f 2a 00 00 00 00 00 00 00 00 00 00 00 00 00 00   .*..............
+|   3856: 00 00 00 15 0a 03 00 30 00 00 00 00 01 03 03 00   .......0........
+|   3872: 03 01 01 01 02 01 01 03 01 01 37 8c 80 80 80 80   ..........7.....
+|   3888: 01 03 00 74 00 00 00 2e 02 30 61 03 02 02 01 01   ...t.....0a.....
+|   3904: 62 03 02 03 01 01 63 03 02 04 01 01 67 03 06 01   b.....c.....g...
+|   3920: 02 02 01 01 68 03 06 01 02 03 01 01 69 03 06 01   ....h.......i...
+|   3936: 02 04 00 00 66 46 08 08 0f ef 00 14 2a 00 00 00   ....fF......*...
+|   3952: 00 01 02 02 00 02 01 01 01 02 01 01 25 88 80 80   ............%...
+|   3968: 80 80 01 03 00 50 00 00 00 1f 02 30 67 02 08 02   .....P.....0g...
+|   3984: 01 02 02 01 01 68 02 08 03 01 02 03 01 01 69 02   .....h........i.
+|   4000: 08 04 01 02 04 04 09 09 37 84 80 80 80 80 01 03   ........7.......
+|   4016: 00 74 00 00 00 2e 02 30 61 01 02 02 01 01 62 01   .t.....0a.....b.
+|   4032: 02 03 01 01 63 01 02 04 01 01 67 01 06 01 02 02   ....c.....g.....
+|   4048: 01 01 68 01 06 01 02 03 01 01 69 01 06 01 02 04   ..h.......i.....
+|   4064: 04 06 06 06 08 08 07 01 03 00 14 03 09 00 09 00   ................
+|   4080: 00 00 11 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 3 offset 8192
+|      0: 0a 00 00 00 03 0f ec 00 0f fa 0f f3 0f ec 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 00 06 04 01 0c   ................
+|   4080: 01 03 02 06 04 01 0c 01 02 02 05 04 09 0c 01 02   ................
+| page 4 offset 12288
+|      0: 0d 00 00 00 03 0f be 00 0f ea 0f d4 0f be 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 14 03   ................
+|   4032: 05 00 17 17 17 61 20 62 20 63 67 20 68 20 69 67   .....a b cg h ig
+|   4048: 20 68 20 69 14 02 05 00 17 17 17 67 20 68 20 69    h i.......g h i
+|   4064: 61 20 62 20 63 67 20 68 20 69 14 01 05 00 17 17   a b cg h i......
+|   4080: 17 61 20 62 20 63 64 20 52 06 66 72 06 82 06 90   .a b cd R.fr....
+| page 5 offset 16384
+|      0: d0 00 00 00 30 fe 80 00 ff 80 ff 00 fe 00 00 00   ....0...........
+|   4064: 00 00 00 00 00 00 00 00 06 03 03 00 12 03 00 03   ................
+|   4080: 06 02 03 00 12 03 00 03 06 01 03 00 12 03 00 03   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 7 offset 24576
+|      0: 0d 00 00 00 03 0f 9e 00 0f e6 0f ef 0f 9e 00 00   ................
+|   3984: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 41 84   ..............A.
+|   4000: 80 80 80 80 01 04 00 81 06 00 00 00 34 02 30 61   ............4.0a
+|   4016: 01 01 01 01 01 62 01 01 01 01 01 63 01 01 01 01   .....b.....c....
+|   4032: 01 64 01 01 01 65 01 01 01 66 01 01 01 67 01 01   .d...e...f...g..
+|   4048: 01 01 01 68 01 01 01 01 01 69 01 01 01 04 06 06   ...h.....i......
+|   4064: 06 04 04 04 06 06 07 01 03 00 14 03 09 09 09 0f   ................
+|   4080: 0a 03 00 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 8 offset 28672
+|      0: 0a 00 00 00 01 0f fa 00 0f fa 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
+| page 9 offset 32768
+|      0: 0d 00 00 00 03 0f be 00 0f ea 0f d4 0f be 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 14 03   ................
+|   4032: 05 00 17 17 17 61 20 62 20 63 67 20 68 20 69 67   .....a b cg h ig
+|   4048: 20 68 20 69 14 02 05 00 17 17 17 67 20 68 20 69    h i.......g h i
+|   4064: 61 20 62 20 63 67 20 68 20 69 14 01 05 00 17 17   a b cg h i......
+|   4080: 17 61 20 62 20 63 64 20 65 20 66 67 20 68 20 69   .a b cd e fg h i
+| page 10 offset 36864
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| end crash-eef41e30b388a0.db
+}]} {}
+
+do_catchsql_test 30.1 {
+  SELECT fts5_decode(id, block) FROM t1_data;
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 31.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 8192 pagesize 4096 filename crash-7629f35f11d48e.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 02   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 00 00 00 01 0f c7 00 0f c7 00 00   ................
+|   4032: 00 00 00 00 00 00 00 37 01 06 17 15 15 01 53 74   .......7......St
+|   4048: 61 62 6c 65 64 75 61 6c 64 75 61 6c 02 43 52 45   abledualdual.CRE
+|   4064: 41 54 45 20 54 41 42 4c 45 20 64 75 61 6c 28 64   ATE TABLE dual(d
+|   4080: 75 6d 6d 79 20 76 61 72 28 31 29 29 0d 00 00 00   ummy var(1))....
+| page 2 offset 4096
+|      0: 01 0f fb 00 0f fb 00 00 00 00 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 00 03 01 02 0f 58   ...............X
+| end crash-7629f35f11d48e.db
+}]} {}
+
+do_execsql_test 31.1 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a,b,c);
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<72)
+    INSERT INTO t1(a) SELECT randomblob(2829) FROM c;
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<10)
+    INSERT INTO t1(a) SELECT randomblob(3000) FROM c;
+}
+
+do_catchsql_test 31.2 {
+  DELETE FROM t1 WHERE a MATCH X'6620e574f32a';
+} {0 {}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 32.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 40960 pagesize 4096 filename crash-e2d47e0624a42c.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 0a   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 0d 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 00 00 00 0d 0b 6e 00 0f a3 0f 4c   ..........n....L
+|    112: 0e e1 0e 81 0e 24 0d cc 0d 72 0d 1b 0c b0 0c 50   .....$...r.....P
+|    128: 0b f8 0b b3 0b 6e 00 00 00 00 00 00 00 00 00 00   .....n..........
+|   2912: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 43 0d   ..............C.
+|   2928: 06 17 11 11 08 75 74 61 62 6c 65 74 34 74 34 43   .....utablet4t4C
+|   2944: 52 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41   REATE VIRTUAL TA
+|   2960: 42 4c 45 20 74 34 20 55 53 49 4e 47 20 66 74 73   BLE t4 USING fts
+|   2976: 35 76 6f 63 61 62 28 27 74 32 27 2c 20 27 72 6f   5vocab('t2', 'ro
+|   2992: 77 27 29 43 0c 06 17 11 11 08 75 74 61 62 6c 65   w')C......utable
+|   3008: 74 33 74 33 43 52 45 41 54 45 20 56 49 52 54 55   t3t3CREATE VIRTU
+|   3024: 41 4c 20 54 41 42 4c 45 20 74 33 20 55 53 49 4e   AL TABLE t3 USIN
+|   3040: 47 20 66 74 73 35 76 6f 63 61 62 28 27 74 31 27   G fts5vocab('t1'
+|   3056: 2c 20 27 72 6f 77 27 29 56 0b 06 17 1f 1f 01 7d   , 'row')V.......
+|   3072: 74 61 62 6c 65 74 32 5f 63 6f 6e 66 69 67 74 32   tablet2_configt2
+|   3088: 5f 63 6f 6e 66 69 67 0a 43 52 45 41 54 45 20 54   _config.CREATE T
+|   3104: 41 42 4c 45 20 27 74 32 5f 63 6f 6e 66 69 67 27   ABLE 't2_config'
+|   3120: 28 6b 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   (k PRIMARY KEY, 
+|   3136: 76 29 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44   v) WITHOUT ROWID
+|   3152: 5e 0a 07 17 21 21 01 81 07 74 61 62 6c 65 74 32   ^...!!...tablet2
+|   3168: 5f 63 6f 6e 74 65 6e 74 74 32 5f 63 6f 6e 74 65   _contentt2_conte
+|   3184: 6e 74 09 43 52 45 41 54 45 20 54 41 42 4c 45 20   nt.CREATE TABLE 
+|   3200: 27 74 32 5f 63 6f 6e 74 65 6e 74 27 28 69 64 20   't2_content'(id 
+|   3216: 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59 20   INTEGER PRIMARY 
+|   3232: 4b 45 59 2c 20 63 30 2c 20 63 31 2c 20 63 32 29   KEY, c0, c1, c2)
+|   3248: 69 09 07 17 19 19 01 81 2d 74 61 62 6c 65 74 32   i.......-tablet2
+|   3264: 5f 69 64 78 74 32 5f 69 64 78 08 43 52 45 41 54   _idxt2_idx.CREAT
+|   3280: 45 20 54 41 42 4c 45 20 27 74 32 5f 69 64 78 27   E TABLE 't2_idx'
+|   3296: 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20 70 67   (segid, term, pg
+|   3312: 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45 59 28   no, PRIMARY KEY(
+|   3328: 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20 57 49   segid, term)) WI
+|   3344: 54 48 4f 55 54 20 52 4f 57 49 44 55 08 07 17 1b   THOUT ROWIDU....
+|   3360: 1b 01 81 01 74 61 62 6c 65 74 32 5f 64 61 74 61   ....tablet2_data
+|   3376: 74 32 5f 64 61 74 61 07 43 52 45 41 54 45 20 54   t2_data.CREATE T
+|   3392: 41 42 4c 45 20 27 74 32 5f 64 61 74 61 27 28 69   ABLE 't2_data'(i
+|   3408: 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52   d INTEGER PRIMAR
+|   3424: 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c 4f   Y KEY, block BLO
+|   3440: 42 29 58 07 07 17 11 11 08 81 1d 74 61 62 6c 65   B)X........table
+|   3456: 74 32 74 32 43 52 45 41 54 45 20 56 49 52 54 55   t2t2CREATE VIRTU
+|   3472: 41 4c 20 54 41 42 4c 45 20 74 32 20 55 53 49 4e   AL TABLE t2 USIN
+|   3488: 47 20 66 74 73 35 28 27 61 27 2c 5b 62 5d 2c 22   G fts5('a',[b],.
+|   3504: 63 22 2c 64 65 74 61 69 6c 3d 6e 6f 6e 65 2c 63   c.,detail=none,c
+|   3520: 6f 6c 75 6d 6e 73 69 7a 65 3d 30 29 56 06 06 17   olumnsize=0)V...
+|   3536: 1f 1f 01 7d 74 61 62 6c 65 74 31 5f 63 6f 6e 66   ....tablet1_conf
+|   3552: 69 67 74 31 5f 63 6f 6e 66 69 67 06 43 52 45 41   igt1_config.CREA
+|   3568: 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63 6f 6e   TE TABLE 't1_con
+|   3584: 66 69 67 27 28 6b 20 50 52 49 4d 41 52 59 20 4b   fig'(k PRIMARY K
+|   3600: 45 59 2c 20 76 29 20 57 49 54 48 4f 55 54 20 52   EY, v) WITHOUT R
+|   3616: 4f 57 49 44 5b 05 07 17 21 21 01 81 01 74 61 62   OWID[...!!...tab
+|   3632: 6c 65 74 31 5f 64 6f 63 73 69 7a 65 74 31 5f 64   let1_docsizet1_d
+|   3648: 6f 63 73 69 7a 65 05 43 52 45 41 54 45 20 54 41   ocsize.CREATE TA
+|   3664: 42 4c 45 20 27 74 31 5f 64 6f 63 73 69 7a 65 27   BLE 't1_docsize'
+|   3680: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   (id INTEGER PRIM
+|   3696: 41 52 59 20 4b 45 59 2c 20 73 7a 20 42 4c 4f 42   ARY KEY, sz BLOB
+|   3712: 29 5e 04 07 17 21 21 01 81 07 74 61 62 6c 65 74   )^...!!...tablet
+|   3728: 31 5f 63 6f 6e 74 65 6e 74 74 31 5f 63 6f 6e 74   1_contentt1_cont
+|   3744: 65 6e 74 04 43 52 45 41 54 45 20 54 41 42 4c 45   ent.CREATE TABLE
+|   3760: 20 27 74 31 5f 63 6f 6e 74 65 6e 74 27 28 69 64    't1_content'(id
+|   3776: 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59    INTEGER PRIMARY
+|   3792: 20 4b 45 59 2c 20 63 30 2c 20 63 31 2c 20 63 32    KEY, c0, c1, c2
+|   3808: 29 69 03 07 17 19 19 01 81 2d 74 61 62 6c 65 74   )i.......-tablet
+|   3824: 31 5f 69 64 78 74 31 5f 69 64 78 03 43 52 45 41   1_idxt1_idx.CREA
+|   3840: 54 45 20 54 41 42 4c 45 20 27 74 31 5f 69 64 78   TE TABLE 't1_idx
+|   3856: 27 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20 70   '(segid, term, p
+|   3872: 67 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45 59   gno, PRIMARY KEY
+|   3888: 28 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20 57   (segid, term)) W
+|   3904: 49 54 48 4f 55 54 20 52 4f 57 49 44 55 02 07 17   ITHOUT ROWIDU...
+|   3920: 1b 1b 01 81 01 74 61 62 6c 65 74 31 5f 64 61 74   .....tablet1_dat
+|   3936: 61 74 31 5f 64 61 74 61 02 43 52 45 41 54 45 20   at1_data.CREATE 
+|   3952: 54 41 42 4c 45 20 27 74 31 5f 64 61 74 61 27 28   TABLE 't1_data'(
+|   3968: 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41   id INTEGER PRIMA
+|   3984: 52 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c   RY KEY, block BL
+|   4000: 4f 42 29 5b 01 07 17 11 11 08 81 23 74 61 62 6c   OB)[.......#tabl
+|   4016: 65 74 31 74 31 43 52 45 41 54 45 20 56 49 52 54   et1t1CREATE VIRT
+|   4032: 55 41 4c 20 54 41 42 4c 45 20 74 31 20 55 53 49   UAL TABLE t1 USI
+|   4048: 4e 47 20 66 74 73 35 28 61 2c 62 20 75 6e 69 6e   NG fts5(a,b unin
+|   4064: 64 65 78 65 64 2c 63 2c 74 6f 6b 65 6e 69 7a 65   dexed,c,tokenize
+|   4080: 3d 22 70 6f 72 74 65 72 20 61 73 63 69 69 22 29   =.porter ascii.)
+| page 2 offset 4096
+|      0: 0d 0f 68 00 05 0f 13 00 0f e6 0f 13 0f a8 0f 7c   ..h............|
+|     16: 0f 2a 00 00 00 00 00 00 00 00 00 00 00 00 00 00   .*..............
+|   3856: 00 00 00 15 0a 03 00 30 00 00 00 00 01 03 03 00   .......0........
+|   3872: 03 01 01 01 02 01 01 03 01 01 37 8c 80 80 80 80   ..........7.....
+|   3888: 01 03 00 74 00 00 00 2e 02 30 61 03 02 02 01 01   ...t.....0a.....
+|   3904: 62 03 02 03 01 01 63 03 02 04 01 01 67 03 06 01   b.....c.....g...
+|   3920: 02 02 01 01 68 03 06 01 02 03 01 01 69 03 06 01   ....h.......i...
+|   3936: 02 04 04 06 06 06 08 08 0f ef 00 14 2a 00 00 00   ............*...
+|   3952: 00 01 02 02 00 02 01 01 01 02 01 01 25 88 80 80   ............%...
+|   3968: 80 80 01 03 00 50 00 00 00 1f 02 30 67 02 08 02   .....P.....0g...
+|   3984: 01 02 02 01 01 68 02 08 03 01 02 03 01 01 69 02   .....h........i.
+|   4000: 08 04 01 02 04 04 09 09 37 84 80 80 80 80 01 03   ........7.......
+|   4016: 00 74 00 00 00 2e 02 30 61 01 02 02 01 01 62 01   .t.....0a.....b.
+|   4032: 02 03 01 01 63 01 02 04 01 01 67 01 06 01 02 20   ....c.....g.... 
+|   4048: 10 16 80 10 60 10 20 30 10 16 90 10 60 10 20 40   ....`. 0....`. @
+|   4064: 40 60 60 60 80 80 70 10 30 01 40 30 90 00 90 00   @```..p.0.@0....
+|   4080: 00 01 12 40 00 00 00 00 10 10 10 00 10 10 10 10   ...@............
+| page 3 offset 8192
+|      0: a0 00 00 00 30 fe c0 00 ff a0 ff 30 fe 00 00 00   ....0......0....
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 00 06 04 01 0c   ................
+|   4080: 01 03 02 06 04 01 0c 01 02 02 05 04 09 0c 01 02   ................
+| page 4 offset 12288
+|      0: 0d 00 00 00 03 0f be 00 0f ea 0f d4 0f be 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 14 03   ................
+|   4032: 05 00 17 17 17 61 20 62 20 63 67 20 68 20 69 67   .....a b cg h ig
+|   4048: 20 68 20 69 14 02 05 00 17 17 17 67 20 68 20 69    h i.......g h i
+|   4064: 61 20 62 20 63 67 20 68 20 69 14 01 05 00 17 17   a b cg h i......
+|   4080: 17 61 20 62 20 63 64 20 65 20 66 67 20 68 20 69   .a b cd e fg h i
+| page 5 offset 16384
+|      0: 0d 00 00 00 03 0f e8 00 0f f8 0f f0 0f e8 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 06 03 03 00 12 03 00 03   ................
+|   4080: 06 02 03 00 12 03 00 03 06 01 03 00 12 03 00 03   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 7 offset 24576
+|      0: 0d 00 00 00 03 0f 9e 00 0f e6 0f ef 0f 9e 00 00   ................
+|   3984: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 41 84   ..............A.
+|   4000: 80 80 80 80 01 04 00 81 06 00 00 00 34 02 30 61   ............4.0a
+|   4016: 01 01 01 01 01 62 01 01 01 01 01 63 01 01 01 01   .....b.....c....
+|   4032: 01 64 01 01 01 65 01 01 01 66 01 01 01 01 01 68   .d...e...f.....h
+|   4048: 01 01 01 01 01 69 01 01 01 04 06 06 06 04 04 04   .....i..........
+|   4064: 06 06 07 01 03 00 14 03 09 09 09 0f 0a 03 00 24   ...............$
+|   4080: 00 00 00 00 01 01 01 00 01 01 01 01 0a 00 00 00   ................
+| page 8 offset 28672
+|      0: 01 0f fa 00 0f fa 00 00 00 00 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
+| page 9 offset 32768
+|      0: 0d 00 00 00 03 0f be 00 0f ea 0f d4 1f be 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 14 03   ................
+|   4032: 05 00 17 17 17 61 20 62 20 63 67 20 68 20 69 67   .....a b cg h ig
+|   4048: 20 68 20 69 14 02 05 00 17 17 17 67 20 68 20 69    h i.......g h i
+|   4064: 61 20 62 20 63 67 20 68 20 69 14 01 05 00 17 17   a b cg h i......
+|   4080: 17 61 20 62 20 63 64 20 65 20 66 67 20 68 20 69   .a b cd e fg h i
+| page 10 offset 36864
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| end crash-e2d47e0624a42c.db
+}]} {}
+
+do_catchsql_test 32.1 {
+  SELECT snippet(t1, -1, '.', '..', '[', ']'), 
+         highlight(t1, 2, '[', ']') 
+  FROM t1('g + h') 
+  WHERE rank MATCH 'bm25(1.0, 1.0)' ORDER BY rank;
+} {1 {database disk image is malformed}}
+
+do_catchsql_test 32.2 {
+  SELECT * FROM t3;
+} {1 {database disk image is malformed}}
+
+do_catchsql_test 32.3 {
+  SELECT * FROM t4;
+} {1 {database disk image is malformed}}
+
+do_catchsql_test 32.4 {
+  SELECT fts5_decode(id, block) FROM t1_data;
+} {1 {database disk image is malformed}}
+
+do_catchsql_test 32.5 {
+  SELECT fts5_decode(id, block) FROM t2_data;
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 33.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 28672 pagesize 4096 filename crash-fed6e90021ba5d.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 07   .....@  ........
+|     32: 00 00 00 02 00 00 00 01 00 00 00 08 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 0f c7 00 06 0d b6 00 0f 8d 0f 36   ...............6
+|    112: 0e cb 0e 6b 0e 0e 0d b6 0d b6 00 00 00 00 00 00   ...k............
+|   3504: 00 00 00 00 00 00 56 07 06 17 1f 1f 01 7d 74 61   ......V.......ta
+|   3520: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   blet1_configt1_c
+|   3536: 6f 6e 66 69 67 07 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
+|   3552: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
+|   3568: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
+|   3584: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 06    WITHOUT ROWID[.
+|   3600: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64   ..!!...tablet1_d
+|   3616: 6f 63 73 69 8a 65 74 31 5f 64 6f 63 73 69 7a 65   ocsi.et1_docsize
+|   3632: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
+|   3648: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
+|   3664: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
+|   3680: 59 2c 20 73 7a 20 42 4c 4f 42 29 5e 05 07 17 21   Y, sz BLOB)^...!
+|   3696: 21 01 81 07 74 61 62 6c 65 74 31 5f 63 6f 6e 74   !...tablet1_cont
+|   3712: 65 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 05 43 52   entt1_content.CR
+|   3728: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63   EATE TABLE 't1_c
+|   3744: 6f 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47   ontent'(id INTEG
+|   3760: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
+|   3776: 63 30 2c 20 63 31 2c 20 63 32 29 69 04 07 17 19   c0, c1, c2)i....
+|   3792: 19 01 81 2d 74 61 62 6c 65 74 31 5f 69 64 78 74   ...-tablet1_idxt
+|   3808: 31 5f 69 64 78 04 43 52 45 41 54 45 20 54 41 42   1_idx.CREATE TAB
+|   3824: 4c 45 20 27 74 31 5f 69 64 78 27 28 73 65 67 69   LE 't1_idx'(segi
+|   3840: 64 2c 20 74 65 72 6d 2c 20 70 67 6e 6f 2c 20 50   d, term, pgno, P
+|   3856: 52 49 4d 41 52 59 20 4b 45 59 28 73 65 67 69 64   RIMARY KEY(segid
+|   3872: 2c 20 74 65 72 6d 29 29 20 57 49 54 48 4f 55 54   , term)) WITHOUT
+|   3888: 20 52 4f 57 49 44 55 03 07 17 1b 1b 01 81 01 74    ROWIDU........t
+|   3904: 61 62 6c 65 74 31 5f 64 61 74 61 74 31 5f 64 61   ablet1_datat1_da
+|   3920: 74 61 03 43 52 45 41 54 45 20 54 41 42 4c 45 20   ta.CREATE TABLE 
+|   3936: 27 74 31 5f 64 61 74 61 27 28 69 64 20 49 4e 54   't1_data'(id INT
+|   3952: 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59   EGER PRIMARY KEY
+|   3968: 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42 29 38 02 06   , block BLOB)8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 35   LE t1 USING fts5
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 39 00 00 00 00 00   (a,b,c)...9.....
+| page 3 offset 8192
+|      0: 0d 00 00 00 03 0c af 00 0f e6 0f ef 0c af 00 00   ................
+|   3232: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 86   ................
+|   3248: 2f 84 80 80 80 80 01 04 00 8c 62 00 00 03 12 02   /.........b.....
+|   3264: 30 30 01 04 05 03 01 04 05 03 01 04 05 03 1f 02   00..............
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+|   3296: 30 1c 02 04 01 0e ee ca ec ea ea ab e4 f5 ca b1   0...............
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+|   3328: 0f e0 0f d8 0f d0 0f c8 0f c0 0f b8 0f b0 0f a8   ................
+|   3344: 0f a0 0f 98 0f 90 0f 88 0f 80 0f 78 0f 70 0f 68   ...........x.p.h
+|   3360: 0f 60 0f 58 0f 50 0f 48 0f 40 0f 38 0f 30 0f 28   .`.X.P.H.@.8.0.(
+|   3376: 0f 20 0f 18 0f 10 0f 08 0f 00 0e f8 0e f0 0e e8   . ..............
+|   3392: 0e e0 02 03 01 02 03 01 02 03 02 07 6f 6d 70 69   ............ompi
+|   3408: 6c 65 72 01 02 02 01 02 02 01 02 02 01 06 64 62   ler...........db
+|   3424: 73 74 61 74 07 02 03 01 02 03 01 02 03 02 04 65   stat...........e
+|   3440: 62 75 67 04 02 02 01 02 02 01 02 02 01 06 65 6e   bug...........en
+|   3456: 61 62 6c 65 07 02 02 01 02 02 01 02 02 01 02 02   able............
+|   3472: 01 02 02 01 02 02 01 02 02 01 02 02 01 02 02 01   ................
+|   3488: 02 02 01 02 02 01 02 02 01 02 02 01 02 02 01 02   ................
+|   3504: 02 01 02 02 01 02 02 01 02 02 01 02 02 01 02 02   ................
+|   3520: 01 02 02 02 08 78 74 65 6e 73 69 6f 6e 1f 02 04   .....xtension...
+|   3536: 01 02 04 01 02 04 01 04 66 74 73 34 0a 02 03 03   ........fts4....
+|   3552: 01 02 01 02 03 04 01 35 0d 02 03 01 02 03 01 02   .......5........
+|   3568: 03 01 07 67 65 6f 70 6f 6c 79 10 02 03 01 02 03   ...geopoly......
+|   3584: 01 02 03 01 05 6a 73 6f 6e 31 13 02 03 01 02 03   .....json1......
+|   3600: 01 02 03 01 04 6c 6f 61 64 1f 02 03 01 02 03 01   .....load.......
+|   3616: 02 03 01 03 6d 61 78 1c 02 02 01 02 02 01 02 02   ....max.........
+|   3632: 02 05 65 6d 6f 72 79 1c 02 03 01 02 03 01 02 03   ..emory.........
+|   3648: 04 04 73 79 73 35 16 02 03 01 02 03 01 02 03 01   ..sys5..........
+|   3664: 06 6e 6f 63 61 73 65 02 06 01 02 02 03 06 01 02   .nocase.........
+|   3680: 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02   ................
+|   3696: 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02 03   ................
+|   3712: 06 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06   ................
+|   3728: 01 02 02 01 04 6f 6d 69 74 1f 02 02 01 02 02 01   .....omit.......
+|   3744: 02 02 01 05 72 74 72 65 65 19 02 03 01 02 03 01   ....rtree.......
+|   3760: 02 03 04 02 69 6d 01 06 01 02 02 03 06 01 02 02   ....im..........
+|   3776: 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02 03   ................
+|   3792: 06 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06   ................
+|   3808: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3824: 02 02 01 0a 74 68 72 65 61 64 73 61 66 65 22 02   ....threadsafe..
+|   3840: 02 01 02 02 01 02 02 01 04 76 74 61 62 07 02 04   .........vtab...
+|   3856: 01 02 04 01 02 04 01 01 78 01 06 01 01 02 01 06   ........x.......
+|   3872: 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01   ................
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+|   4048: 0c 44 10 12 11 0f 47 13 0f 0c 12 10 0f 0e 10 0f   .D....G.........
+|   4064: 44 0f 10 40 15 0f 07 01 03 00 14 24 57 24 24 0f   D..@.......$W$$.
+|   4080: 0a 03 00 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 4 offset 12288
+|      0: 0a 00 00 00 01 0f fa 00 0f fa 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
+| page 5 offset 16384
+|      0: 0d 00 00 00 24 0c 1f 00 0f df 0f bd 0f 9b 0f 89   ....$...........
+|     16: 0f 76 0f 63 0f 44 0f 24 0f 04 0e ec 0e d3 0e ba   .v.c.D.$........
+|     32: 0e a2 0e 89 0e 70 0e 55 0e 39 0e 1d 0e 04 0d ea   .....p.U.9......
+|     48: 0d d0 0d b5 0d 99 0d 7d 0d 64 0d 4a 0d 30 0d 10   .........d.J.0..
+|     64: 0c ef 0c ce 0c ae 54 d5 35 95 33 55 84 24 94 e4   ......T.5.3U.$..
+|     80: 15 25 91 a1 70 50 02 90 f1 94 54 e4 14 24 c4 52   .%..pP....T..$.R
+|     96: 04 d4 54 d5 35 95 33 55 84 e4 f4 34 15 34 51 91   ..T.5.3U...4.4Q.
+|    112: 60 50 02 90 f1 74 54 e4 14 24 c4 52 04 d4 54 d5   `P...tT..$.R..T.
+|    128: 35 95 33 55 85 25 45 24 94 d1 81 50 50 02 50 f1   5.3U.%E$...PP.P.
+|    144: 94 54 e4 14 24 c4 52 04 a5 34 f4 e3 15 84 24 94   .T..$.R..4....$.
+|    160: e4 15 25 91 81 40 50 02 50 f1 94 54 e4 14 24 c4   ..%..@P.P..T..$.
+|    176: 52 04 a5 34 f4 e3 15 84 e4 f4 34 15 34 51 71 30   R..4......4.4Qq0
+|    192: 50 02 50 f1 74 54 e4 14 24 c4 52 04 ae 4f 41 33   P.P.tT..$.R..OA3
+|    208: 55 85 25 45 24 94 d1 a1 20 50 02 90 f1 94 54 e4   U.%E$... P....T.
+|    224: 14 24 c4 52 04 74 54 f5 04 f4 c5 95 84 24 94 e4   .$.R.tT......$..
+|    240: 15 25 91 a1 10 50 02 90 f1 94 54 e4 14 24 c4 52   .%...P....T..$.R
+|    256: 04 74 54 f5 04 f4 c5 95 84 e4 f4 34 15 34 51 91   .tT........4.4Q.
+|    272: 00 50 02 90 f1 74 54 e4 14 24 c4 52 04 74 54 f5   .P...tT..$.R.tT.
+|    288: 04 f4 c5 95 85 25 45 24 94 d1 70 f0 50 02 30 f1   .....%E$..p.P.0.
+|    304: 94 54 e4 14 24 c4 52 04 65 45 33 55 84 24 94 e4   .T..$.R.eE3U.$..
+|    320: 15 25 91 70 e0 50 02 30 f1 94 54 e4 40 0f 38 0f   .%.p.P.0..T.@.8.
+|    336: 30 0f 28 0f 20 0f 18 0f 10 0f 08 0f 00 0e f8 0e   0.(. ...........
+|    352: f0 0e e8 0e e0 00 00 00 00 00 00 00 00 00 00 00   ................
+| page 6 offset 20480
+|   3808: 06 24 03 00 12 02 01 01 06 23 03 00 12 02 01 01   .$.......#......
+|   3824: 06 22 03 00 12 02 01 01 06 21 03 00 12 03 01 01   .........!......
+|   3840: 06 20 03 00 12 03 01 01 06 1f 03 00 12 03 01 01   . ..............
+|   3856: 06 1e 03 00 12 03 01 01 06 1d 03 00 12 03 01 01   ................
+|   3872: 06 1c 03 00 12 03 01 01 06 1b 03 00 12 02 01 01   ................
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+|   4000: 06 0c 03 00 12 02 01 01 06 0b 03 00 12 02 01 01   ................
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+|   4080: 06 02 03 00 12 05 01 01 06 01 03 00 12 05 01 01   ................
+| page 7 offset 24576
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 52 59 11 05 05 00   ..........RY....
+|     16: 17 0f 19 44 45 42 55 47 58 4e 4f 43 41 53 45 10   ...DEBUGXNOCASE.
+|     32: 04 05 00 17 0f 17 44 45 42 55 47 58 52 54 52 49   ......DEBUGXRTRI
+|     48: 4d 20 03 05 00 35 0f 19 43 4f 4d 50 49 4c 45 52   M ...5..COMPILER
+|     64: 3d 63 6c 61 6e 67 2d 36 2e 30 2e 30 58 42 49 4e   =clang-6.0.0XBIN
+|     80: 41 52 59 20 02 05 00 35 0f 19 43 4f 4d 50 49 4c   ARY ...5..COMPIL
+|     96: 45 52 3d 63 6c 61 6e 67 2d 36 2e 30 2e 30 58 4e   ER=clang-6.0.0XN
+|    112: 4f 43 41 53 45 1f 01 05 00 35 0f 17 43 4f 4d 50   OCASE....5..COMP
+|    128: 49 4c 45 52 3d 63 6c 61 6e 67 2d 36 2e 30 2e 30   ILER=clang-6.0.0
+|    144: 58 52 54 52 49 4d 0d 00 00 00 24 0e e0 00 0f 6f   XRTRIM....$....o
+|    160: 6e 74 65 6e 74 05 43 52 45 41 54 45 20 54 41 42   ntent.CREATE TAB
+|    176: 4c 45 20 27 74 31 5f 63 6f 6e 74 65 6e 74 27 28   LE 't1_content'(
+|    192: 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41   id INTEGER PRIMA
+|    208: 52 59 20 4b 45 59 2c 20 63 30 2c 20 63 31 2c 20   RY KEY, c0, c1, 
+|    224: 63 32 29 69 04 07 17 19 19 01 81 2d 74 61 62 6c   c2)i.......-tabl
+|    240: 65 74 31 5f 69 64 78 74 31 5f 69 64 78 04 43 52   et1_idxt1_idx.CR
+|    256: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 69   EATE TABLE 't1_i
+|    272: 64 78 27 28 73 65 67 69 64 2c 20 74 65 72 6d 2c   dx'(segid, term,
+|    288: 20 70 67 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b    pgno, PRIMARY K
+|    304: 45 59 28 73 65 67 69 64 2c 20 74 65 72 6d 29 29   EY(segid, term))
+|    320: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 55 03    WITHOUT ROWIDU.
+|    336: 07 17 1b 1b 01 81 01 74 61 62 6c 65 74 31 5f 64   .......tablet1_d
+|    352: 61 74 61 74 31 5f 64 61 74 61 03 43 52 45 41 54   atat1_data.CREAT
+|    368: 45 20 54 41 42 4c 45 20 27 74 31 5f 64 61 74 61   E TABLE 't1_data
+|    384: 27 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49   '(id INTEGER PRI
+|    400: 4d 41 52 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20   MARY KEY, block 
+|    416: 42 4c 4f 42 29 38 02 06 17 11 11 08 5f 74 61 62   BLOB)8......_tab
+|    432: 6c 65 74 31 74 31 43 52 45 41 54 45 20 56 49 52   let1t1CREATE VIR
+|    448: 54 55 41 4c 20 54 41 42 4c 45 20 74 31 20 55 53   TUAL TABLE t1 US
+|    464: 49 4e 47 20 66 74 73 35 28 61 2c 62 2c 63 29 00   ING fts5(a,b,c).
+|    480: 00 00 39 00 00 00 00 00 00 00 00 00 00 00 00 00   ..9.............
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| end crash-fed6e90021ba5d.db
+}]} {}
+
+do_catchsql_test 33.1 {
+  CREATE VIRTUAL TABLE t2 USING fts5vocab('t1','row');
+  CREATE VIRTUAL TABLE t3 USING fts5vocab('t1','col');
+  CREATE VIRTUAL TABLE t4 USING fts5vocab('t1','instance');
+} {/*malformed database schema*/}
+
+do_catchsql_test 33.2 {
+  SELECT * FROM t2;
+} {/*malformed database schema*/}
+
+do_catchsql_test 33.3 {
+  SELECT * FROM t2, t3, t4 WHERE t2.term=t3.term AND t3.term=t4.term;
+} {/*malformed database schema*/}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 34.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 40960 pagesize 4096 filename crash-a60a9da4c8932f.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 0a   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 0d 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 00 00 00 0d 0b 6e 00 0f a3 0f 4c   ..........n....L
+|    112: 0e e1 0e 81 0e 24 0d cc 0d 72 0d 1b 0c b0 0c 50   .....$...r.....P
+|    128: 0b f8 0b b3 0b 6e 00 00 00 00 00 00 00 00 00 00   .....n..........
+|   2912: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 43 0d   ..............C.
+|   2928: 06 17 11 11 08 75 74 61 62 6c 65 74 34 74 34 43   .....utablet4t4C
+|   2944: 52 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41   REATE VIRTUAL TA
+|   2960: 42 4c 45 20 74 34 20 55 53 49 4e 47 20 66 74 73   BLE t4 USING fts
+|   2976: 35 76 6f 63 61 62 28 27 74 32 27 2c 20 27 72 6f   5vocab('t2', 'ro
+|   2992: 77 27 29 43 0c 06 17 11 11 08 75 74 61 62 6c 65   w')C......utable
+|   3008: 74 33 74 33 43 52 45 41 54 45 20 56 49 52 54 55   t3t3CREATE VIRTU
+|   3024: 41 4c 20 54 41 42 4c 45 20 74 33 20 55 53 49 4e   AL TABLE t3 USIN
+|   3040: 47 20 66 74 73 35 76 6f 63 61 62 28 27 74 31 27   G fts5vocab('t1'
+|   3056: 2c 20 27 72 6f 77 27 29 56 0b 06 17 1f 1f 01 7d   , 'row')V.......
+|   3072: 74 61 62 6c 65 74 32 5f 63 6f 6e 66 69 67 74 32   tablet2_configt2
+|   3088: 5f 63 6f 6e 66 69 67 0a 43 52 45 41 54 45 20 54   _config.CREATE T
+|   3104: 41 42 4c 45 20 27 74 32 5f 63 6f 6e 66 69 67 27   ABLE 't2_config'
+|   3120: 28 6b 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   (k PRIMARY KEY, 
+|   3136: 76 29 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44   v) WITHOUT ROWID
+|   3152: 5e 0a 07 17 21 21 01 81 07 74 61 62 6c 65 74 32   ^...!!...tablet2
+|   3168: 5f 63 6f 6e 74 65 6e 74 74 32 5f 63 6f 6e 74 65   _contentt2_conte
+|   3184: 6e 74 09 43 52 45 41 54 45 20 54 41 42 4c 45 20   nt.CREATE TABLE 
+|   3200: 27 74 32 5f 63 6f 6e 74 65 6e 74 27 28 69 64 20   't2_content'(id 
+|   3216: 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59 20   INTEGER PRIMARY 
+|   3232: 4b 45 59 2c 20 63 30 2c 20 63 31 2c 20 63 32 29   KEY, c0, c1, c2)
+|   3248: 69 09 07 17 19 19 01 81 2d 74 61 62 6c 65 74 32   i.......-tablet2
+|   3264: 5f 69 64 78 74 32 5f 69 64 78 08 43 52 45 41 54   _idxt2_idx.CREAT
+|   3280: 45 20 54 41 42 4c 45 20 27 74 32 5f 69 64 78 27   E TABLE 't2_idx'
+|   3296: 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20 70 67   (segid, term, pg
+|   3312: 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45 59 28   no, PRIMARY KEY(
+|   3328: 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20 57 49   segid, term)) WI
+|   3344: 54 48 4f 55 54 20 52 4f 57 49 44 55 08 07 17 1b   THOUT ROWIDU....
+|   3360: 1b 01 81 01 74 61 62 6c 65 74 32 5f 64 61 74 61   ....tablet2_data
+|   3376: 74 32 5f 64 61 74 61 07 43 52 45 41 54 45 20 54   t2_data.CREATE T
+|   3392: 41 42 4c 45 20 27 74 32 5f 64 61 74 61 27 28 69   ABLE 't2_data'(i
+|   3408: 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52   d INTEGER PRIMAR
+|   3424: 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c 4f   Y KEY, block BLO
+|   3440: 42 29 58 07 07 17 11 11 08 81 1d 74 61 62 6c 65   B)X........table
+|   3456: 74 32 74 32 43 52 45 41 54 45 20 56 49 52 54 55   t2t2CREATE VIRTU
+|   3472: 41 4c 20 54 41 42 4c 45 20 74 32 20 55 53 49 4e   AL TABLE t2 USIN
+|   3488: 47 20 66 74 73 35 28 27 61 27 2c 5b 62 5d 2c 22   G fts5('a',[b],.
+|   3504: 63 22 2c 64 65 74 61 69 6c 3d 6e 6f 6e 65 2c 63   c.,detail=none,c
+|   3520: 6f 6c 75 6d 6e 73 69 7a 65 3d 30 29 56 06 06 17   olumnsize=0)V...
+|   3536: 1f 1f 01 7d 74 61 62 6c 65 74 31 5f 63 6f 6e 66   ....tablet1_conf
+|   3552: 69 67 74 31 5f 63 6f 6e 66 69 67 06 43 52 45 41   igt1_config.CREA
+|   3568: 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63 6f 6e   TE TABLE 't1_con
+|   3584: 66 69 67 27 28 6b 20 50 52 49 4d 41 52 59 20 4b   fig'(k PRIMARY K
+|   3600: 45 59 2c 20 76 29 20 57 49 54 48 4f 55 54 20 52   EY, v) WITHOUT R
+|   3616: 4f 57 49 44 5b 05 07 17 21 21 01 81 01 74 61 62   OWID[...!!...tab
+|   3632: 6c 65 74 31 5f 64 6f 63 73 69 7a 65 74 31 5f 64   let1_docsizet1_d
+|   3648: 6f 63 73 69 7a 65 05 43 52 45 41 54 45 20 54 41   ocsize.CREATE TA
+|   3664: 42 4c 45 20 27 74 31 5f 64 6f 63 73 69 7a 65 27   BLE 't1_docsize'
+|   3680: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   (id INTEGER PRIM
+|   3696: 41 52 59 20 4b 45 59 2c 20 73 7a 20 42 4c 4f 42   ARY KEY, sz BLOB
+|   3712: 29 5e 04 07 17 21 21 01 81 07 74 61 62 6c 65 74   )^...!!...tablet
+|   3728: 31 5f 63 6f 6e 74 65 6e 74 74 31 5f 63 6f 6e 74   1_contentt1_cont
+|   3744: 65 6e 74 04 43 52 45 41 54 45 20 54 41 42 4c 45   ent.CREATE TABLE
+|   3760: 20 27 74 31 5f 63 6f 6e 74 65 6e 74 27 28 69 64    't1_content'(id
+|   3776: 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59    INTEGER PRIMARY
+|   3792: 20 4b 45 59 2c 20 63 30 2c 20 63 31 2c 20 63 32    KEY, c0, c1, c2
+|   3808: 29 69 03 07 17 19 19 01 81 2d 74 61 62 6c 65 74   )i.......-tablet
+|   3824: 31 5f 69 64 78 74 31 5f 69 64 78 03 43 52 45 41   1_idxt1_idx.CREA
+|   3840: 54 45 20 54 41 42 4c 45 20 27 74 31 5f 69 64 78   TE TABLE 't1_idx
+|   3856: 27 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20 70   '(segid, term, p
+|   3872: 67 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45 59   gno, PRIMARY KEY
+|   3888: 28 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20 57   (segid, term)) W
+|   3904: 49 54 48 4f 55 54 20 52 4f 57 49 44 55 02 07 17   ITHOUT ROWIDU...
+|   3920: 1b 1b 01 81 01 74 61 62 6c 65 74 31 5f 64 61 74   .....tablet1_dat
+|   3936: 61 74 31 5f 64 61 74 61 02 43 52 45 41 54 45 20   at1_data.CREATE 
+|   3952: 54 41 42 4c 45 20 27 74 31 5f 64 61 74 61 27 28   TABLE 't1_data'(
+|   3968: 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41   id INTEGER PRIMA
+|   3984: 52 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c   RY KEY, block BL
+|   4000: 4f 42 29 5b 01 07 17 11 11 08 81 23 74 61 62 6c   OB)[.......#tabl
+|   4016: 65 74 31 74 31 43 52 45 41 54 45 20 56 49 52 54   et1t1CREATE VIRT
+|   4032: 55 41 4c 20 54 41 42 4c 45 20 74 31 20 55 53 49   UAL TABLE t1 USI
+|   4048: 4e 47 20 66 74 73 35 28 61 2c 62 20 75 6e 69 6e   NG fts5(a,b unin
+|   4064: 64 65 78 65 64 2c 63 2c 74 6f 6b 65 6e 69 7a 65   dexed,c,tokenize
+|   4080: 3d 22 70 6f 72 74 65 72 20 61 73 63 69 69 22 29   =.porter ascii.)
+| page 2 offset 4096
+|      0: 0d 0f 68 00 05 0f 13 00 0f e6 0f 13 0f a8 0f 7c   ..h............|
+|     16: 0f 2a 00 00 00 00 00 00 00 00 00 00 00 00 00 00   .*..............
+|   3856: 00 00 00 15 0a 03 00 30 00 00 00 00 01 03 03 00   .......0........
+|   3872: 03 01 01 01 02 01 01 03 01 01 37 8c 80 80 80 80   ..........7.....
+|   3888: 01 03 00 74 00 20 68 20 69 0d 00 00 00 03 0f e8   ...t. h i.......
+|   3904: 00 0f f8 0f f0 0f e8 00 00 00 00 00 00 00 00 00   ................
+| page 5 offset 16384
+|   4064: 00 00 00 00 00 00 00 00 06 03 03 00 12 03 00 00   ................
+|   4080: 60 20 30 01 20 30 00 30 60 10 30 01 20 30 00 30   ` 0. 0.0`.0. 0.0
+| page 6 offset 20480
+|      0: a0 00 00 00 10 ff 40 00 ff 00 00 00 00 00 00 00   ......@.........
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 7 offset 24576
+|      0: 0d 00 00 00 03 0f 9e 00 0f e6 0f ef 0f 9e 00 00   ................
+|   3984: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 41 84   ..............A.
+|   4000: 80 80 80 80 01 04 00 81 06 00 00 00 34 02 30 61   ............4.0a
+|   4016: 01 01 00 00 00 00 00 00 00 00 00 11 87 89 06 26   ...............&
+|   4032: 01 64 01 01 01 65 01 01 01 66 01 01 01 67 01 01   .d...e...f...g..
+|   4048: 01 01 01 68 01 01 01 01 01 69 01 01 01 04 06 06   ...h.....i......
+|   4064: 06 04 44 00 06 06 07 01 03 00 14 03 09 09 09 0f   ..D.............
+|   4080: 0a 03 00 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 8 offset 28672
+|      0: 0a 00 00 00 01 0f fa 00 0f fa 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
+| page 9 offset 32768
+|      0: 0d 00 00 00 03 0f be 00 0f ea 0f d4 0f be 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 14 03   ................
+|   4032: 05 00 17 17 17 61 20 62 20 63 67 20 68 20 69 67   .....a b cg h ig
+|   4048: 20 68 20 69 14 02 05 00 17 17 17 67 20 68 20 69    h i.......g h i
+|   4064: 61 20 62 20 63 67 20 68 20 69 14 01 05 00 17 17   a b cg h i......
+|   4080: 17 61 20 62 20 63 64 20 65 20 66 67 20 68 20 69   .a b cd e fg h i
+| page 10 offset 36864
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| end crash-a60a9da4c8932f.db
+}]} {}
+
+do_catchsql_test 34.1 {
+  SELECT fts5_decode(id, block) FROM t1_data;
+} {1 {database disk image is malformed}}
+
+do_catchsql_test 34.2 {
+  SELECT fts5_decode(id, block) FROM t2_data;
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 35.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 32768 pagesize 4096 filename crash-ae135cb10977c7.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 08   .....@  ........
+|     32: 00 00 00 02 00 00 00 01 00 00 00 09 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 0f c7 00 07 0d 92 00 0f 8d 0f 36   ...............6
+|    112: 0e cb 0e 6b 0e 0e 0d b6 0d 92 0d 92 00 00 00 00   ...k............
+|   3472: 00 00 22 08 06 17 11 11 01 31 74 61 62 6c 65 74   .........1tablet
+|   3488: 32 74 32 08 43 52 45 41 54 45 20 54 41 42 4c 45   2t2.CREATE TABLE
+|   3504: 20 74 32 28 78 29 56 07 06 17 1f 1f 01 7d 74 61    t2(x)V.......ta
+|   3520: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   blet1_configt1_c
+|   3536: 6f 6e 66 69 67 07 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
+|   3552: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
+|   3568: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
+|   3584: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 06    WITHOUT ROWID[.
+|   3600: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64   ..!!...tablet1_d
+|   3616: 6f 63 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65   ocsizet1_docsize
+|   3632: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
+|   3648: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
+|   3664: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
+|   3680: 59 2c 20 73 7a 20 42 4c 4f 42 29 5e 05 07 17 21   Y, sz BLOB)^...!
+|   3696: 21 01 81 07 74 61 62 6c 65 74 31 5f 63 6f 6e 74   !...tablet1_cont
+|   3712: 65 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 05 43 52   entt1_content.CR
+|   3728: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63   EATE TABLE 't1_c
+|   3744: 6f 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47   ontent'(id INTEG
+|   3760: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
+|   3776: 63 30 2c 20 63 31 2c 20 63 32 29 69 04 07 17 19   c0, c1, c2)i....
+|   3792: 19 01 81 2d 74 61 62 6c 65 74 31 5f 69 64 78 74   ...-tablet1_idxt
+|   3808: 31 5f 69 64 78 04 43 52 45 41 54 45 20 54 41 42   1_idx.CREATE TAB
+|   3824: 4c 45 20 27 74 31 5f 69 64 78 27 28 73 65 67 69   LE 't1_idx'(segi
+|   3840: 64 2c 20 74 65 72 6d 2c 20 70 67 6e 6f 2c 20 50   d, term, pgno, P
+|   3856: 52 49 4d 41 52 59 20 4b 45 59 28 73 65 67 69 64   RIMARY KEY(segid
+|   3872: 2c 20 74 65 72 6d 29 29 20 57 49 54 48 4f 55 54   , term)) WITHOUT
+|   3888: 20 52 4f 57 49 44 55 03 07 17 1b 1b 01 81 01 74    ROWIDU........t
+|   3904: 61 62 6c 65 74 31 5f 64 61 74 61 74 31 5f 64 61   ablet1_datat1_da
+|   3920: 74 61 03 43 52 45 41 54 45 20 54 41 42 4c 45 20   ta.CREATE TABLE 
+|   3936: 27 74 31 5f 64 61 74 61 27 28 69 64 20 49 4e 54   't1_data'(id INT
+|   3952: 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59   EGER PRIMARY KEY
+|   3968: 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42 29 38 02 06   , block BLOB)8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 35   LE t1 USING fts5
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 39 00 00 00 00 00   (a,b,c)...9.....
+| page 3 offset 8192
+|      0: 0d 00 00 00 03 0c 94 00 0f e6 0f ef 0c 94 00 00   ................
+|   3216: 00 00 00 00 86 4a 84 80 80 80 80 01 04 00 8d 18   .....J..........
+|   3232: 00 00 03 2b 02 30 30 01 02 06 01 02 06 01 02 06   ...+.00.........
+|   3248: 1f 02 03 01 02 03 01 02 03 01 08 32 30 31 36 30   ...........20160
+|   3264: 36 30 39 01 02 07 01 02 07 01 02 07 01 01 34 01   609...........4.
+|   3280: 02 05 01 02 05 01 02 05 01 01 35 01 02 04 01 02   ..........5.....
+|   3296: 04 01 02 04 02 07 30 30 30 30 30 30 30 1c 02 3d   ......0000000..=
+|   3312: 01 02 04 01 02 04 01 06 62 69 6e 61 72 79 03 06   ........binary..
+|   3328: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3344: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3360: 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02   ................
+|   3376: 03 06 01 02 02 03 06 01 02 02 01 08 63 6f 6d 70   ............comp
+|   3392: 69 6c 65 72 01 02 02 01 02 02 01 02 02 01 06 64   iler...........d
+|   3408: 62 73 74 61 74 07 02 03 01 02 03 01 02 03 02 04   bstat...........
+|   3424: 65 62 75 67 04 02 02 01 02 02 01 02 02 01 07 65   ebug...........e
+|   3440: 6e 61 62 6c 65 07 02 02 01 02 02 01 02 02 01 02   nable...........
+|   3456: 02 01 02 02 01 02 02 01 02 02 01 02 02 01 02 02   ................
+|   3472: 01 02 02 01 02 02 01 02 02 01 02 02 01 02 02 01   ................
+|   3488: 02 02 01 02 02 01 02 02 01 02 02 01 02 02 01 02   ................
+|   3504: 02 01 02 02 02 08 78 74 65 6e 73 69 6f 6e 1f 02   ......xtension..
+|   3520: 04 01 02 04 01 02 04 01 04 66 74 73 34 0a 02 03   .........fts4...
+|   3536: 01 02 03 01 02 03 04 01 35 0d 02 03 01 02 03 01   ........5.......
+|   3552: 02 03 01 03 67 63 63 01 02 03 01 02 03 01 02 03   ....gcc.........
+|   3568: 02 06 65 6f 70 6f 6c 79 10 02 03 01 02 03 01 02   ..eopoly........
+|   3584: 03 01 05 6a 73 6f 6e 31 13 02 03 01 02 03 01 02   ...json1........
+|   3600: 03 01 04 6c 6f 61 64 1f 02 03 01 02 03 01 02 03   ...load.........
+|   3616: 01 03 6d 61 78 1c 02 02 01 02 02 01 02 02 02 05   ..max...........
+|   3632: 65 6d 6f 72 79 1c 02 03 01 02 03 01 02 03 04 04   emory...........
+|   3648: 73 79 73 35 16 02 03 01 02 03 01 02 03 01 06 6e   sys5...........n
+|   3664: 6f 63 61 73 65 02 06 01 02 02 03 06 01 02 02 03   ocase...........
+|   3680: 06 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06   ................
+|   3696: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3712: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3728: 02 01 04 6f 6d 69 74 1f 02 02 01 02 02 01 02 02   ...omit.........
+|   3744: 01 05 72 74 72 65 65 19 02 03 01 02 03 01 02 03   ..rtree.........
+|   3760: 04 02 69 6d 01 06 01 02 02 03 06 01 02 02 03 06   ..im............
+|   3776: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3792: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3808: 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02   ................
+|   3824: 01 0a 74 68 72 65 61 64 73 61 66 65 22 02 02 01   ..threadsafe....
+|   3840: 02 02 01 02 02 01 04 76 74 61 62 07 02 04 01 02   .......vtab.....
+|   3856: 04 01 02 04 01 01 78 01 06 01 01 02 01 06 01 01   ......x.........
+|   3872: 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02   ................
+|   3888: 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01   ................
+|   3904: 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06   ................
+|   3920: 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01   ................
+|   3936: 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01   ................
+|   3952: 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02   ................
+|   3968: 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01   ................
+|   3984: 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06   ................
+|   4000: 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01   ................
+|   4016: 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01   ................
+|   4032: 02 01 06 01 01 02 01 06 01 01 02 04 15 13 0c 0c   ................
+|   4048: 12 44 13 11 0f 47 13 0e fc 0e 11 10 0f 0e 10 0f   .D...G..........
+|   4064: 44 0f 10 40 15 0f 07 01 03 00 14 24 5a 24 24 0f   D..@.......$Z$$.
+|   4080: 0a 03 00 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 4 offset 12288
+|      0: 0a 00 00 00 01 0f fa 00 0f fa 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
+| page 5 offset 16384
+|      0: 0d 00 00 00 24 0c 0a 00 0f d8 0f af 0f 86 0f 74   ....$..........t
+|     16: 0f 61 0f 4e 0f 2f 0f 0f 0e ef 0e d7 0e be 0e a5   .a.N./..........
+|     32: 0e 8d 0e 74 0e 5b 0e 40 0e 24 0e 08 01 2f 0d d5   ...t.[.@.$.../..
+|     48: 0d bb 0d a0 0d 84 0d 68 0d 4f 0d 35 0d 1b 0c fb   .......h.O.5....
+|     64: 0c da 0c b9 0c 99 0c 78 0c 57 0c 3e 0c 24 0c 0a   .......x.W.>.$..
+|   3072: 00 00 00 00 00 00 00 00 00 00 18 24 05 00 25 0f   ...........$..%.
+|   3088: 19 54 48 52 45 41 44 53 41 46 45 3d 30 58 42 49   .THREADSAFE=0XBI
+|   3104: 4e 41 52 59 18 23 05 00 25 0f 19 54 48 52 45 41   NARY.#..%..THREA
+|   3120: 44 53 41 46 45 3d 30 58 4e 4f 43 41 53 45 17 8f   DSAFE=0XNOCASE..
+|   3136: 05 00 25 0f 17 54 48 52 45 41 44 53 41 46 45 3d   ..%..THREADSAFE=
+|   3152: 30 58 52 54 52 49 4d 1f 21 05 00 33 0f 19 4f 4d   0XRTRIM.!..3..OM
+|   3168: 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49 4f   IT LOAD EXTENSIO
+|   3184: 4e 58 42 49 4e 41 52 59 1f 20 05 00 33 0f 19 4f   NXBINARY. ..3..O
+|   3200: 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49   MIT LOAD EXTENSI
+|   3216: 4f 4e 58 4e 4f 43 41 53 45 1e 1f 05 00 33 0f 17   ONXNOCASE....3..
+|   3232: 4f 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53   OMIT LOAD EXTENS
+|   3248: 49 4f 4e 58 52 54 52 49 4d 1f 1e 05 00 33 0f 19   IONXRTRIM....3..
+|   3264: 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30 30   MAX MEMORY=50000
+|   3280: 30 30 30 57 42 49 4e 41 52 59 1f 1d 05 00 33 0f   000WBINARY....3.
+|   3296: 19 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30   .MAX MEMORY=5000
+|   3312: 30 30 30 30 58 4e 4f 43 41 53 45 1e 1c 05 00 33   0000XNOCASE....3
+|   3328: 0f 17 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30   ..MAX MEMORY=500
+|   3344: 30 30 30 30 30 58 52 54 52 49 4d 18 1b 05 00 25   00000XRTRIM....%
+|   3360: 0f 19 45 4e 41 42 4c 45 20 52 54 52 45 45 58 42   ..ENABLE RTREEXB
+|   3376: 49 4e 41 52 59 18 1a 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3392: 4c 45 20 52 54 52 45 45 59 4e 4f 43 41 53 45 17   LE RTREEYNOCASE.
+|   3408: 19 05 00 25 0f 17 45 4e 41 42 4c 45 20 52 54 52   ...%..ENABLE RTR
+|   3424: 45 45 58 52 54 52 49 4d 1a 18 05 00 29 0f 19 45   EEXRTRIM....)..E
+|   3440: 4e 41 42 4c 45 20 4d 45 4d 53 59 53 35 58 42 49   NABLE MEMSYS5XBI
+|   3456: 4e 41 52 59 1a 17 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3472: 45 20 4d 45 4d 53 59 53 35 58 4e 4f 43 41 53 45   E MEMSYS5XNOCASE
+|   3488: 19 16 05 00 29 0f 17 45 4e 41 42 4c 45 20 4d 45   ....)..ENABLE ME
+|   3504: 4d 53 59 53 35 58 52 54 52 49 4d 18 15 05 00 25   MSYS5XRTRIM....%
+|   3520: 0f 19 45 4e 41 42 4c 45 20 4a 53 4f 4e 31 58 42   ..ENABLE JSON1XB
+|   3536: 49 4e 41 52 59 18 14 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3552: 4c 45 20 4a 53 4f 4e 31 58 4e 4f 43 41 53 45 17   LE JSON1XNOCASE.
+|   3568: 13 05 00 25 0f 17 45 4e 41 42 4c 45 20 4a 53 4f   ...%..ENABLE JSO
+|   3584: 4e 31 58 52 54 52 49 4d 1a 12 05 00 29 0f 19 45   N1XRTRIM....)..E
+|   3600: 4e 41 42 4c 45 20 47 45 4f 50 4f 4c 59 58 42 49   NABLE GEOPOLYXBI
+|   3616: 4e 41 52 59 1a 11 05 00 29 0f 19 45 4f 41 42 4c   NARY....)..EOABL
+|   3632: 45 20 47 45 4f 50 4f 4c 59 58 4e 4f 43 51 53 45   E GEOPOLYXNOCQSE
+|   3648: 19 10 05 00 29 0f 17 45 4e 41 42 4c 45 20 47 45   ....)..ENABLE GE
+|   3664: 4f 50 4f 4c 59 58 52 54 52 49 4d 17 0f 05 00 23   OPOLYXRTRIM....#
+|   3680: 0f 19 45 4e 41 42 4c 45 20 46 54 53 35 58 42 49   ..ENABLE FTS5XBI
+|   3696: 4e 41 52 59 17 0e 05 00 23 0f 19 45 4e 41 42 4c   NARY....#..ENABL
+|   3712: 45 20 46 54 53 35 58 4e 4f 43 41 53 45 16 1d 05   E FTS5XNOCASE...
+|   3728: 00 23 0f a4 45 4e 41 42 4c 45 20 46 54 53 35 58   .#..ENABLE FTS5X
+|   3744: 52 54 52 49 4d 17 0c 05 00 23 0f 19 45 4e 41 42   RTRIM....#..ENAB
+|   3760: 4c 45 20 46 55 53 34 58 42 49 4e 41 52 59 17 0b   LE FUS4XBINARY..
+|   3776: 05 00 23 0f 19 45 4e 41 42 4c 45 20 46 54 53 34   ..#..ENABLE FTS4
+|   3792: 58 4e 4f 43 41 53 45 16 0a 05 00 23 0f 17 45 4e   XNOCASE....#..EN
+|   3808: 41 42 4c 45 20 46 54 53 34 58 52 54 52 49 4d 1e   ABLE FTS4XRTRIM.
+|   3824: 09 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3840: 54 41 54 20 56 54 41 42 58 42 49 4e 41 52 59 1e   TAT VTABXBINARY.
+|   3856: 08 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3872: 54 41 54 20 56 54 41 42 58 4e 4f 43 41 53 45 1d   TAT VTABXNOCASE.
+|   3888: 07 05 00 31 0f 17 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3904: 54 41 54 20 56 54 41 42 58 52 54 52 49 4d 11 06   TAT VTABXRTRIM..
+|   3920: 05 00 17 0f 19 44 45 42 55 47 58 42 49 4e 41 52   .....DEBUGXBINAR
+|   3936: 59 11 05 05 00 17 0f 19 44 45 42 55 47 58 4e 4f   Y.......DEBUGXNO
+|   3952: 43 41 53 45 10 04 05 00 17 0f 17 44 45 42 55 47   CASE.......DEBUG
+|   3968: 58 52 54 52 49 4d 27 03 05 00 43 0f 19 43 4f 4d   XRTRIM'...C..COM
+|   3984: 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e 30 20   PILER=gcc-5.4.0 
+|   4000: 32 30 31 36 30 36 30 39 58 42 49 4e 41 52 59 27   20160609XBINARY'
+|   4016: 02 05 00 43 0f 19 43 4f 4d 50 49 4c 45 52 3d 67   ...C..COMPILER=g
+|   4032: 63 63 2d 35 2e 34 2e 30 20 32 30 31 36 30 36 30   cc-5.4.0 2016060
+|   4048: 39 58 4e 4f 43 41 53 45 26 01 05 00 43 0f 17 43   9XNOCASE&...C..C
+|   4064: 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e   OMPILER=gcc-5.4.
+|   4080: 30 20 32 30 31 36 30 36 30 39 58 52 54 52 49 4d   0 20160609XRTRIM
+| page 6 offset 20480
+|      0: 0d 00 00 00 24 0e e0 00 0f f8 0f f0 0f e8 0f e0   ....$...........
+|     16: 0f d8 0f d0 0f c8 0f c0 0f b8 0f b0 0f a8 0f a0   ................
+|     32: 0f 98 0f 90 0f 88 0f 80 0f 78 0f 70 0f 68 0f 60   .........x.p.h.`
+|     48: 0f 58 0f 50 0f 48 0f 40 0f 38 0f 30 0f 28 0f 20   .X.P.H.@.8.0.(. 
+|     64: 0f 18 0f 10 0f 08 0f 00 0e f8 0e f0 0e e8 0e e0   ................
+|   3808: 06 24 03 00 12 02 01 01 06 23 03 00 12 02 01 01   .$.......#......
+|   3824: 06 22 03 00 12 02 01 01 06 21 03 00 12 03 01 01   .........!......
+|   3840: 06 20 03 00 12 03 01 01 06 1f 03 00 12 03 01 01   . ..............
+|   3856: 06 1e 03 00 12 03 01 01 06 1d 03 00 12 03 01 01   ................
+|   3872: 06 1c 03 00 12 03 01 01 06 1b 03 00 12 02 01 01   ................
+|   3888: 06 1a 03 00 12 02 01 01 06 19 03 00 12 02 01 01   ................
+|   3904: 06 18 03 00 12 02 01 01 06 17 03 00 12 02 01 01   ................
+|   3920: 06 16 03 00 12 02 01 01 06 15 03 00 12 02 01 01   ................
+|   3936: 06 14 03 00 12 02 01 01 06 13 03 00 12 02 01 01   ................
+|   3952: 06 12 03 00 12 02 01 01 06 11 03 00 12 02 01 01   ................
+|   3968: 06 10 03 00 12 02 01 01 06 0f 03 00 12 02 01 01   ................
+|   3984: 06 0e 03 00 12 02 01 01 06 0d 03 00 12 02 01 01   ................
+|   4000: 06 0c 03 00 12 02 01 01 06 0b 03 00 12 02 01 01   ................
+|   4016: 06 0a 03 00 12 02 01 01 06 09 03 00 12 03 01 01   ................
+|   4032: 06 08 03 00 12 03 01 01 06 07 03 00 12 03 01 01   ................
+|   4048: 06 06 03 00 12 01 01 01 06 05 03 00 12 01 01 01   ................
+|   4064: 06 04 03 00 12 01 01 01 06 03 03 00 12 06 01 01   ................
+|   4080: 06 02 03 00 12 06 01 01 06 01 03 00 12 06 01 01   ................
+| page 7 offset 24576
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 8 offset 28672
+|      0: 0d 00 00 00 03 0f d6 00 0f f4 0f e9 0f d6 00 00   ................
+|   4048: 00 00 00 00 00 00 11 03 02 2b 69 6e 74 65 67 72   .........+integr
+|   4064: 69 74 79 2d 63 68 65 63 6b 09 02 02 1b 72 65 62   ity-check....reb
+|   4080: 75 69 6c 64 0a 01 02 1d 6f 70 74 69 6d 69 7a 65   uild....optimize
+| end crash-ae135cb10977c7.db
+}]} {}
+
+do_catchsql_test 35.1 {
+  SELECT * FROM t1 WHERE t1 MATCH 'e*';
+} {1 {fts5: missing row 14 from content table 'main'.'t1_content'}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 36.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 24576 pagesize 4096 filename crash-a6651222df1bd1.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 06   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 06 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 00 00 00 06 0e 0f 00 0f aa 0f 53   ...............S
+|    112: 0e e8 0e 8b 0e 33 0e 0f 00 00 00 00 00 00 00 00   .....3..........
+|   3584: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 22   ................
+|   3600: 06 06 17 11 11 01 31 74 61 62 6c 65 62 62 62 62   ......1tablebbbb
+|   3616: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 62 62   .CREATE TABLE bb
+|   3632: 28 61 29 56 05 06 17 1f 1f 01 7d 74 61 62 6c 65   (a)V.......table
+|   3648: 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63 6f 6e 66   t1_configt1_conf
+|   3664: 69 67 05 43 52 45 41 54 45 20 54 41 42 4c 45 20   ig.CREATE TABLE 
+|   3680: 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b 20 50 52   't1_config'(k PR
+|   3696: 49 4d 41 52 59 20 4b 45 59 2c 20 76 29 20 57 49   IMARY KEY, v) WI
+|   3712: 54 48 4f 55 54 20 52 4f 57 49 44 5b 04 07 17 21   THOUT ROWID[...!
+|   3728: 21 01 81 01 74 61 62 6c 65 74 31 5f 64 6f 63 73   !...tablet1_docs
+|   3744: 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65 04 43 52   izet1_docsize.CR
+|   3760: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 64   EATE TABLE 't1_d
+|   3776: 6f 63 73 69 7a 65 27 28 69 64 20 49 4e 54 45 47   ocsize'(id INTEG
+|   3792: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
+|   3808: 73 7a 20 42 4c 4f 42 29 69 03 07 17 19 19 01 81   sz BLOB)i.......
+|   3824: 2d 74 61 62 6c 65 74 31 5f 69 64 78 74 31 5f 69   -tablet1_idxt1_i
+|   3840: 64 78 03 43 52 45 41 54 45 20 54 41 42 4c 45 20   dx.CREATE TABLE 
+|   3856: 27 74 31 5f 69 64 78 27 28 73 65 67 69 64 2c 20   't1_idx'(segid, 
+|   3872: 74 65 72 6d 2c 20 70 67 6e 6f 2c 20 50 52 49 4d   term, pgno, PRIM
+|   3888: 41 52 59 20 4b 45 59 28 73 65 67 69 64 2c 20 74   ARY KEY(segid, t
+|   3904: 65 72 6d 29 29 20 57 49 54 48 4f 55 54 20 52 4f   erm)) WITHOUT RO
+|   3920: 57 49 44 55 02 07 17 1b 1b 01 81 01 74 61 62 6c   WIDU........tabl
+|   3936: 65 74 31 5f 64 61 74 61 74 31 5f 64 61 74 61 02   et1_datat1_data.
+|   3952: 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74 31   CREATE TABLE 't1
+|   3968: 5f 64 61 74 61 27 28 69 64 20 49 4e 54 45 47 45   _data'(id INTEGE
+|   3984: 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 62   R PRIMARY KEY, b
+|   4000: 6c 6f 63 6b 20 42 4c 4f 42 29 54 01 07 17 11 11   lock BLOB)T.....
+|   4016: 08 81 15 74 61 62 6c 65 74 31 74 31 43 52 45 41   ...tablet1t1CREA
+|   4032: 54 45 20 56 49 52 54 55 41 4c 20 54 41 42 4c 45   TE VIRTUAL TABLE
+|   4048: 20 74 31 20 55 53 49 4e 47 20 66 74 73 35 28 61    t1 USING fts5(a
+|   4064: 2c 62 2c 70 72 65 66 69 78 3d 22 31 2c 32 2c 33   ,b,prefix=.1,2,3
+|   4080: 2c 34 22 2c 20 63 6f 6e 74 65 6e 74 3d 22 22 29   ,4., content=..)
+| page 2 offset 4096
+|      0: 0d 0b 6a 00 37 09 4c 02 0f e7 09 4c 0f c6 0f a4   ..j.7.L....L....
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+|   2448: 00 00 00 16 05 34 66 74 73 34 03 02 02 01 04 6e   .....4fts4.....n
+|   2464: 75 6d 62 03 06 01 04 09 1b 8c 80 80 80 80 0e 03   umb.............
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+|   3952: 80 80 80 04 03 00 2e 00 00 00 10 06 30 64 61 62   ............0dab
+|   3968: 6c 65 01 06 01 01 05 04 15 84 80 80 80 80 03 03   le..............
+|   3984: 00 30 00 00 00 11 02 08 30 70 72 65 73 65 6e 74   .0......0present
+|   4000: 01 02 05 05 1b 84 80 80 80 80 02 03 00 3c 00 00   .............<..
+|   4016: 00 16 04 30 66 74 73 01 06 01 01 04 01 02 69 6e   ...0fts.......in
+|   4032: 01 06 01 01 04 0a 1a 84 80 80 80 80 01 03 00 3a   ...............:
+|   4048: 00 00 00 15 05 30 65 61 63 68 01 02 03 01 03 66   .....0each.....f
+|   4064: 6f 72 01 02 02 04 09 06 01 03 00 12 03 0b 0f 00   or..............
+|   4080: 00 08 8c 80 80 80 80 11 03 00 16 00 00 00 05 04   ................
+| page 3 offset 8192
+|      0: 0a 00 00 00 32 0e 4f 00 0f fa 0f f1 0f e9 0f e1   ....2.O.........
+|     16: 0f d8 0f d1 0f c9 0f c1 0f b9 0f b1 0f a9 0f a0   ................
+|     32: 0f 98 0f 90 0f 87 0f 80 0f 78 0f 71 0f 68 0f 5f   .........x.q.h._
+|     48: 0f 56 0f 4d 0f 41 0f 38 0f 2f 0f 26 0f 1d 0f 13   .V.M.A.8./.&....
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+|   3648: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08   ................
+|   3664: 04 01 10 01 03 34 74 20 07 04 01 0e 01 03 34 1e   .....4t ......4.
+|   3680: 09 04 01 12 01 03 33 74 68 1c 08 04 01 10 01 03   ......3th.......
+|   3696: 33 6e 1a 08 04 01 10 01 03 32 77 18 08 04 01 10   3n.......2w.....
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+|   3728: 01 0e 01 03 32 12 08 04 01 10 01 03 31 74 10 08   ....2.......1t..
+|   3744: 04 01 10 01 03 31 6e 0e 07 04 01 0e 01 03 31 0c   .....1n.......1.
+|   3760: 09 04 01 12 01 03 30 74 68 0a 08 04 01 10 01 03   ......0th.......
+|   3776: 30 74 08 09 04 01 12 01 03 30 6e 75 06 08 04 01   0t.......0nu....
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+|   3808: 10 01 02 34 72 22 07 04 01 0e 01 02 34 20 08 04   ...4r.......4 ..
+|   3824: 01 10 01 02 33 72 1e 09 04 01 12 01 02 33 61 72   ....3r.......3ar
+|   3840: 1c 08 04 01 10 01 02 32 74 1a 08 04 01 10 01 02   .......2t.......
+|   3856: 32 69 18 09 04 01 12 01 02 32 61 72 16 08 04 01   2i.......2ar....
+|   3872: 10 01 02 31 74 14 08 04 01 10 01 02 31 6e 12 08   ...1t.......1n..
+|   3888: 04 01 10 01 02 31 62 10 08 04 01 10 01 02 31 32   .....1b.......12
+|   3904: 0e 0b 04 01 16 01 02 30 74 68 65 72 0c 08 04 01   .......0ther....
+|   3920: 10 01 02 30 74 0a 08 04 01 10 01 02 30 6e 08 08   ...0t.......0n..
+|   3936: 14 01 10 01 02 30 62 06 08 04 01 10 01 02 30 61   .....0b.......0a
+|   3952: 04 06 04 01 0c 01 02 02 07 04 09 10 01 34 74 22   .............4t.
+|   3968: 06 04 09 0e 01 34 20 08 04 09 12 01 33 74 65 1e   .....4 .....3te.
+|   3984: 07 04 09 10 01 33 70 1c 07 04 09 10 01 33 66 1a   .....3p......3f.
+|   4000: 08 04 09 12 01 32 74 68 18 07 04 09 10 01 32 74   .....2th......2t
+|   4016: 16 07 04 09 10 01 32 69 14 07 04 09 10 01 32 66   ......2i......2f
+|   4032: 12 07 04 09 10 01 31 74 10 07 04 09 10 01 31 69   ......1t......1i
+|   4048: 0e 06 04 09 0e 01 31 0c 08 04 09 12 01 30 74 65   ......1......0te
+|   4064: 0a 07 04 09 10 01 30 74 08 07 04 09 10 01 30 70   ......0t......0p
+|   4080: 06 08 04 09 12 01 30 66 74 04 05 04 09 0c 01 02   ......0ft.......
+| page 4 offset 12288
+|      0: 0d 00 00 00 03 0f eb 00 0f f9 0f f2 0f eb 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 05 03 03 00 10   ................
+|   4080: 03 05 05 02 03 00 10 04 06 05 01 03 00 10 04 04   ................
+| page 5 offset 16384
+|      0: 0a 00 00 00 02 0f eb 00 0f eb 0f f4 00 00 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 08 03 15 01 70   ...............p
+|   4080: 67 73 7a 18 0b 03 1b 01 76 65 72 73 69 6f 6e 04   gsz.....version.
+| page 6 offset 20480
+|      0: 0d 00 00 00 03 0f f2 00 0f fc 0f f7 0f f2 00 00   ................
+|   4080: 00 00 03 03 02 01 03 03 02 02 01 02 02 01 0c e9   ................
+| end crash-a6651222df1bd1.db
+}]} {}
+
+do_catchsql_test 36.1 {
+  INSERT INTO t1(b) VALUES(
+      x'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');
+} {0 {}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 37.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 40960 pagesize 4096 filename null-memcmp-param-1..db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 0a   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 0d 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 00 00 00 0d 0b 6e 00 0f a3 0f 4c   ..........n....L
+|    112: 0e e1 0e 81 0e 24 0d cc 0d 72 0d 1b 0c b0 0c 50   .....$...r.....P
+|    128: 0b f8 0b b3 0b 6e 00 00 00 00 00 00 00 00 00 00   .....n..........
+|   2912: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 43 0d   ..............C.
+|   2928: 06 17 11 11 08 75 74 61 62 6c 66 74 34 74 34 43   .....utablft4t4C
+|   2944: 52 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41   REATE VIRTUAL TA
+|   2960: 42 4c 45 20 74 34 20 55 53 49 4e 47 20 66 74 73   BLE t4 USING fts
+|   2976: 35 76 6f 63 61 62 28 27 74 32 27 2c 20 27 72 6f   5vocab('t2', 'ro
+|   2992: 77 27 29 43 0c 06 17 11 11 08 75 74 61 62 6c 65   w')C......utable
+|   3008: 74 33 74 33 43 52 45 41 54 45 20 56 49 52 54 55   t3t3CREATE VIRTU
+|   3024: 41 4c 20 54 41 42 4c 45 20 74 33 20 55 53 49 4e   AL TABLE t3 USIN
+|   3040: 47 20 66 74 73 35 76 6f 63 61 62 28 27 74 31 27   G fts5vocab('t1'
+|   3056: 2c 20 27 72 6f 77 27 29 56 0b 06 17 1f 1f 01 7d   , 'row')V.......
+|   3072: 74 61 62 6c 65 74 32 5f 63 6f 6e 66 69 67 74 32   tablet2_configt2
+|   3088: 5f 63 6f 6e 66 69 67 0a 43 52 45 41 54 45 20 54   _config.CREATE T
+|   3104: 41 42 4c 45 20 27 74 32 5f 63 6f 6e 66 69 67 27   ABLE 't2_config'
+|   3120: 28 6b 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   (k PRIMARY KEY, 
+|   3136: 76 29 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44   v) WITHOUT ROWID
+|   3152: 5e 0a 07 17 21 21 01 81 07 74 61 62 6c 65 74 32   ^...!!...tablet2
+|   3168: 5f 63 6f 6e 74 65 6e 74 74 32 5f 63 6f 6e 74 65   _contentt2_conte
+|   3184: 6e 74 09 43 52 45 41 54 45 20 54 41 42 4c 45 20   nt.CREATE TABLE 
+|   3200: 27 74 32 5f 63 6f 6e 74 65 6e 74 27 28 69 64 20   't2_content'(id 
+|   3216: 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59 20   INTEGER PRIMARY 
+|   3232: 4b 45 59 2c 20 63 30 2c 20 63 31 2c 20 63 32 29   KEY, c0, c1, c2)
+|   3248: 69 09 07 17 19 19 01 81 2d 74 61 62 6c 65 74 32   i.......-tablet2
+|   3264: 5f 69 64 78 74 32 5f 69 64 78 08 43 52 45 41 54   _idxt2_idx.CREAT
+|   3280: 45 20 54 41 42 4c 45 20 27 74 32 5f 69 64 78 27   E TABLE 't2_idx'
+|   3296: 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20 70 67   (segid, term, pg
+|   3312: 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45 59 28   no, PRIMARY KEY(
+|   3328: 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20 57 49   segid, term)) WI
+|   3344: 54 48 4f 55 54 20 52 4f 57 49 44 55 08 07 17 1b   THOUT ROWIDU....
+|   3360: 1b 01 81 01 74 61 62 6c 65 74 32 5f 64 61 74 61   ....tablet2_data
+|   3376: 74 32 5f 64 61 74 61 07 43 52 45 41 54 45 20 54   t2_data.CREATE T
+|   3392: 41 42 4c 45 20 27 74 32 5f 64 61 74 61 27 28 69   ABLE 't2_data'(i
+|   3408: 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52   d INTEGER PRIMAR
+|   3424: 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c 4f   Y KEY, block BLO
+|   3440: 42 29 58 07 07 17 11 11 08 81 1d 74 61 62 6c 65   B)X........table
+|   3456: 74 32 74 32 43 52 45 41 54 45 20 56 49 52 54 55   t2t2CREATE VIRTU
+|   3472: 41 4c 20 54 41 42 4c 45 20 74 32 20 55 53 49 4e   AL TABLE t2 USIN
+|   3488: 47 20 64 44 73 35 28 27 61 27 2c 5b 62 5d 2c 22   G dDs5('a',[b],.
+|   3504: 63 22 2c 64 65 74 61 69 6c 3d 6e 6f 6e 65 2c 63   c.,detail=none,c
+|   3520: 6f 6c 75 6d 6e 73 69 7a 65 3d 30 29 56 06 06 17   olumnsize=0)V...
+|   3536: 1f 1f 01 7d 74 61 62 6c 65 74 31 5f 63 6f 6e 66   ....tablet1_conf
+|   3552: 69 67 74 31 5f 63 6f 6e 66 69 67 06 43 52 45 41   igt1_config.CREA
+|   3568: 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63 6f 6e   TE TABLE 't1_con
+|   3584: 66 69 67 27 28 6b 20 50 52 49 4d 41 52 59 20 4b   fig'(k PRIMARY K
+|   3600: 45 59 2c 20 76 29 20 57 49 54 48 4f 55 54 20 52   EY, v) WITHOUT R
+|   3616: 4f 57 49 44 5b 05 07 17 21 21 01 81 01 74 61 62   OWID[...!!...tab
+|   3632: 6c 65 74 31 5f 64 6f 63 73 69 7a 65 74 31 5f 64   let1_docsizet1_d
+|   3648: 6f 63 73 69 7a 65 05 43 52 45 41 54 45 20 54 41   ocsize.CREATE TA
+|   3664: 42 4c 45 20 27 74 31 5f 64 6f 63 73 69 7a 65 27   BLE 't1_docsize'
+|   3680: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   (id INTEGER PRIM
+|   3696: 41 52 59 20 4b 45 59 2c 20 73 7a 20 42 4c 4f 42   ARY KEY, sz BLOB
+|   3712: 29 5e 04 07 17 21 21 01 81 07 74 61 62 6c 65 74   )^...!!...tablet
+|   3728: 31 5f 63 6f 6e 74 65 6e 74 74 31 5f 63 6f 6e 74   1_contentt1_cont
+|   3744: 65 6e 74 04 43 52 45 41 54 45 20 54 41 42 4c 45   ent.CREATE TABLE
+|   3760: 20 27 74 31 5f 63 6f 6e 74 65 6e 74 27 28 69 64    't1_content'(id
+|   3776: 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59    INTEGER PRIMARY
+|   3792: 20 4b 45 59 2c 20 63 30 2c 20 63 31 2c 20 63 32    KEY, c0, c1, c2
+|   3808: 29 69 03 07 17 19 19 01 81 2d 74 61 62 6c 65 74   )i.......-tablet
+|   3824: 31 5f 69 64 78 74 31 5f 69 64 78 03 43 52 45 41   1_idxt1_idx.CREA
+|   3840: 54 45 20 54 41 42 4c 45 20 27 74 31 5f 69 64 78   TE TABLE 't1_idx
+|   3856: 27 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20 70   '(segid, term, p
+|   3872: 67 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45 59   gno, PRIMARY KEY
+|   3888: 28 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20 57   (segid, term)) W
+|   3904: 49 54 48 4f 55 54 20 52 4f 57 49 44 55 02 07 17   ITHOUT ROWIDU...
+|   3920: 1b 1b 01 81 01 74 61 62 6c 65 74 31 5f 64 61 74   .....tablet1_dat
+|   3936: 61 74 31 5f 64 61 74 61 02 43 52 45 41 54 45 20   at1_data.CREATE 
+|   3952: 54 41 42 4c 45 20 27 74 31 5f 64 61 74 61 27 28   TABLE 't1_data'(
+|   3968: 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41   id INTEGER PRIMA
+|   3984: 52 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c   RY KEY, block BL
+|   4000: 4f 42 29 5b 01 07 17 11 11 08 81 23 74 61 62 6c   OB)[.......#tabl
+|   4016: 65 74 31 74 31 43 52 45 41 54 45 20 56 49 52 54   et1t1CREATE VIRT
+|   4032: 55 41 4c 20 54 41 42 4c 45 20 74 31 20 55 53 49   UAL TABLE t1 USI
+|   4048: 4e 47 20 66 74 73 35 28 61 2c 62 20 75 6e 69 6e   NG fts5(a,b unin
+|   4064: 64 65 78 65 64 2c 63 2c 74 6f 6b 65 6e 69 7a 65   dexed,c,tokenize
+|   4080: 3d 22 70 6f 72 74 65 72 20 61 73 63 69 69 22 29   =.porter ascii.)
+| page 2 offset 4096
+|      0: 0d 0f 68 00 05 0f 13 00 0f e6 0f 13 0f a8 0f 7c   ..h............|
+|     16: 0f 2a 00 00 00 00 00 00 00 00 00 00 00 00 00 00   .*..............
+|   3856: 00 00 00 15 0a 03 00 30 00 00 00 00 01 03 03 00   .......0........
+|   3872: 03 01 01 01 02 01 01 03 01 01 37 8c 80 80 80 80   ..........7.....
+|   3888: 01 03 00 74 00 00 00 2e 02 30 61 03 02 02 01 01   ...t.....0a.....
+|   3904: 62 03 02 03 01 01 63 03 02 04 01 01 67 03 06 01   b.....c.....g...
+|   3920: 02 02 01 01 68 03 06 01 02 03 01 01 69 03 06 01   ....h.......i...
+|   3936: 02 04 04 06 06 06 08 08 0f ef 00 14 2a 00 00 00   ............*...
+|   3952: 00 01 02 02 00 02 01 01 01 02 01 01 25 88 80 80   ............%...
+|   3968: 80 80 01 03 00 50 00 00 00 1f 01 30 67 02 08 02   .....P.....0g...
+|   3984: 01 02 02 01 01 68 02 08 03 01 02 03 01 01 69 02   .....h........i.
+|   4000: 08 04 01 02 04 04 09 09 37 84 80 80 80 80 01 03   ........7.......
+|   4016: 00 74 00 00 00 2e 02 30 61 01 5a 02 01 01 62 01   .t.....0a.Z...b.
+|   4032: 02 03 01 01 63 01 02 04 01 01 67 01 06 01 02 02   ....c.....g.....
+|   4048: 01 01 68 01 06 01 02 03 01 01 69 01 06 01 02 04   ..h.......i.....
+|   4064: 04 06 06 06 08 08 07 01 03 00 14 03 09 00 09 00   ................
+|   4080: 00 00 11 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 3 offset 8192
+|      0: 0a 00 00 00 03 0f ec 00 0f fa 0f f3 0f ec 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 00 06 04 01 0c   ................
+|   4080: 01 03 02 06 04 01 0c 01 02 02 05 04 09 0c 01 02   ................
+| page 4 offset 12288
+|      0: 0d 00 00 00 03 0f be 00 0f ea 0f d4 0f be 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 14 03   ................
+|   4032: 05 00 17 17 17 61 20 62 20 63 67 20 68 20 69 67   .....a b cg h ig
+|   4048: 20 68 20 69 14 02 05 00 17 17 17 67 20 68 20 69    h i.......g h i
+|   4064: 61 20 62 20 63 67 20 68 20 69 14 01 05 00 17 17   a b cg h i......
+|   4080: 17 61 20 62 20 63 64 20 65 20 66 67 20 68 20 69   .a b cd e fg h i
+| page 5 offset 16384
+|      0: 0d 00 00 00 03 0f e8 00 0f f8 0f f0 0f e8 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 06 03 03 00 12 03 00 03   ................
+|   4080: 06 02 03 00 12 03 00 03 06 01 03 00 12 03 00 03   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 7 offset 24576
+|      0: 0d 00 00 00 03 0f 9e 00 0f e6 0f ef 0f 9e 00 00   ................
+|   3984: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 41 84   ..............A.
+|   4000: 80 80 80 80 01 04 00 81 06 00 00 00 34 02 30 61   ............4.0a
+|   4016: 01 01 01 01 01 62 01 01 01 01 01 63 01 01 01 01   .....b.....c....
+|   4032: 01 64 01 01 01 65 01 01 01 66 01 01 01 67 01 01   .d...e...f...g..
+|   4048: 01 01 01 68 01 01 01 01 01 69 01 01 01 04 06 06   ...h.....i......
+|   4064: 06 04 04 04 06 06 07 01 03 00 14 03 09 09 09 0f   ................
+|   4080: 0a 03 00 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 8 offset 28672
+|      0: 0a 00 00 00 01 0f fa 00 0f fa 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
+| page 9 offset 32768
+|      0: 0d 00 00 00 03 0f be 00 0f ea 0f d4 0f be 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 14 03   ................
+|   4032: 05 00 17 17 17 61 20 62 20 63 67 20 68 20 69 67   .....a b cg h ig
+|   4048: 20 68 20 69 14 02 05 00 17 17 17 67 20 68 20 69    h i.......g h i
+|   4064: 61 20 62 20 63 67 20 68 20 69 14 01 05 00 17 17   a b cg h i......
+|   4080: 17 61 20 62 20 63 64 20 65 20 66 67 20 68 30 69   .a b cd e fg h0i
+| page 10 offset 36864
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| end null-memcmp-param-1..db
+}]} {}
+
+do_catchsql_test 37.1 {
+  SELECT * FROM t3;
+} {/*malformed database schema*/}
+
+#-------------------------------------------------------------------------
+reset_db 
+do_execsql_test 37a.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(b, c);
+  INSERT INTO t1 VALUES('a', 'b');
+  SELECT quote(block) FROM t1_data WHERE rowid=10;
+} {X'000000000101010001010101'}
+
+do_execsql_test 37a.1 {
+  UPDATE t1_data SET block = X'FFFFFFFF0101010001010101' WHERE rowid = 10;
+  SELECT rowid FROM t1('a');
+} {1}
+
+#-------------------------------------------------------------------------
+reset_db 
+do_execsql_test 38.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(b, c);
+  INSERT INTO t1 VALUES('a', 'b');
+  INSERT INTO t1 VALUES('a', 'b');
+  SELECT quote(block) FROM t1_data WHERE rowid=1;
+} {X'020202'}
+
+do_execsql_test 38.1 {
+  SELECT * FROM t1('a b') ORDER BY rank;
+} {a b a b}
+
+do_execsql_test 38.2 {
+  UPDATE t1_data SET block = X'000202' WHERE rowid=1;
+}
+do_catchsql_test 38.3 {
+  SELECT * FROM t1('a b') ORDER BY rank;
+} {1 {database disk image is malformed}}
+
+db close
+sqlite3 db test.db
+do_catchsql_test 38.4 {
+  SELECT * FROM t1('a b') ORDER BY rank;
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 38.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 32768 pagesize 4096 filename crash-fd2a1313e5b5e9.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 08   .....@  ........
+|     32: 00 00 00 02 00 00 00 01 00 00 00 09 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 0f c7 00 07 0d 92 00 0f 8d 0f 36   ...............6
+|    112: 0e cb 0e 6b 0e 0e 0d b6 0d 92 0d 92 00 00 00 00   ...k............
+|   3472: 00 00 22 08 06 17 11 11 01 31 74 61 62 6c 65 74   .........1tablet
+|   3488: 32 74 32 08 43 52 45 41 54 45 20 54 41 42 4c 45   2t2.CREATE TABLE
+|   3504: 20 74 32 28 78 29 56 07 06 17 1f 1f 01 7d 74 61    t2(x)V.......ta
+|   3520: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   blet1_configt1_c
+|   3536: 6f 6e 66 69 67 07 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
+|   3552: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
+|   3568: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
+|   3584: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 06    WITHOUT ROWID[.
+|   3600: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64   ..!!...tablet1_d
+|   3616: 6f 63 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65   ocsizet1_docsize
+|   3632: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
+|   3648: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
+|   3664: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
+|   3680: 59 2c 20 73 7a 20 42 4c 4f 42 29 5e 05 07 17 21   Y, sz BLOB)^...!
+|   3696: 21 01 81 07 74 61 62 6c 65 b8 31 5f 63 6f 6e 74   !...table.1_cont
+|   3712: 65 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 05 43 52   entt1_content.CR
+|   3728: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63   EATE TABLE 't1_c
+|   3744: 6f 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47   ontent'(id INTEG
+|   3760: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
+|   3776: 63 30 2c 20 63 31 2c 20 63 32 29 69 04 07 17 19   c0, c1, c2)i....
+|   3792: 19 01 81 2d 74 61 62 6c 65 74 31 5f 69 64 78 74   ...-tablet1_idxt
+|   3808: 31 5f 69 64 78 04 43 52 45 41 54 45 20 54 41 42   1_idx.CREATE TAB
+|   3824: 4c 45 20 27 74 31 5f 69 64 78 27 28 73 65 67 69   LE 't1_idx'(segi
+|   3840: 64 2c 20 74 65 72 6d 2c 20 70 67 6e 6f 2c 20 50   d, term, pgno, P
+|   3856: 52 49 4d 41 52 59 20 4b 45 59 28 73 65 67 69 64   RIMARY KEY(segid
+|   3872: 2c 20 74 65 72 6d 29 29 20 57 49 54 48 4f 55 54   , term)) WITHOUT
+|   3888: 20 52 4f 57 49 44 55 03 07 17 1b 1b 01 81 01 74    ROWIDU........t
+|   3904: 61 62 6c 65 74 31 5f 64 61 74 61 74 31 5f 64 61   ablet1_datat1_da
+|   3920: 74 61 03 43 52 45 41 54 45 20 54 41 42 4c 45 20   ta.CREATE TABLE 
+|   3936: 27 74 31 5f 64 61 74 61 27 28 69 64 20 49 4e 54   't1_data'(id INT
+|   3952: 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59   EGER PRIMARY KEY
+|   3968: 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42 29 38 02 06   , block BLOB)8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 35   LE t1 USING fts5
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 39 00 00 00 00 00   (a,b,c)...9.....
+| page 3 offset 8192
+|      0: 0d 00 00 00 03 0c 94 00 0f e6 0f ef 0c 94 00 00   ................
+|   3216: 00 00 00 00 86 4a 84 80 80 80 80 01 04 00 8d 18   .....J..........
+|   3232: 00 00 03 2b 02 30 30 01 02 06 01 02 06 01 02 06   ...+.00.........
+|   3248: 1f 02 03 01 02 03 01 02 03 01 08 32 30 31 36 30   ...........20160
+|   3264: 36 30 39 01 02 07 01 02 07 01 02 07 01 01 34 01   609...........4.
+|   3280: 02 05 01 02 05 01 02 05 01 01 35 01 02 04 01 02   ..........5.....
+|   3296: 04 01 02 04 02 07 30 30 30 30 30 30 30 1c 02 04   ......0000000...
+|   3312: 01 02 04 01 02 04 01 06 62 69 6e 61 72 79 03 06   ........binary..
+|   3328: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3344: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3360: 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02   ................
+|   3376: 03 06 01 02 02 03 06 01 02 02 01 08 63 6f 6d 70   ............comp
+|   3392: 69 6c 65 72 01 02 02 01 02 02 01 02 02 01 06 64   iler...........d
+|   3408: 62 73 74 61 74 07 02 03 01 02 03 01 02 03 02 04   bstat...........
+|   3424: 65 62 75 67 04 02 02 01 02 02 01 02 02 01 06 65   ebug...........e
+|   3440: 6e 61 62 6c 65 07 02 02 01 02 02 01 02 02 01 02   nable...........
+|   3456: 02 01 02 02 01 02 02 01 02 02 01 02 02 01 02 02   ................
+|   3472: 01 02 02 01 02 02 01 02 02 01 02 02 01 02 02 01   ................
+|   3488: 02 02 01 02 02 01 02 02 01 02 02 01 02 02 01 02   ................
+|   3504: 02 01 02 02 02 08 78 74 65 6e 73 69 6f 6e 1f 02   ......xtension..
+|   3520: 04 01 02 04 01 02 04 01 04 66 74 73 34 0a 02 03   .........fts4...
+|   3536: 01 02 03 01 02 03 04 01 35 0d 02 03 01 02 03 01   ........5.......
+|   3552: 02 03 01 03 67 63 63 01 02 03 01 02 03 01 02 03   ....gcc.........
+|   3568: 02 06 65 6f 70 6f 6c 79 10 02 03 01 02 03 01 02   ..eopoly........
+|   3584: 03 01 05 6a 73 6f 6e 31 13 02 03 01 02 03 01 02   ...json1........
+|   3600: 03 01 04 6c 6f 61 64 1f 02 03 01 02 03 01 02 03   ...load.........
+|   3616: 01 03 6d 61 78 1c 02 02 01 02 02 01 02 02 02 05   ..max...........
+|   3632: 65 6d 6f 72 79 1c 02 03 01 02 03 01 02 03 04 04   emory...........
+|   3648: 73 79 73 35 16 02 03 01 02 03 01 02 03 01 06 6e   sys5...........n
+|   3664: 6f 63 61 73 65 02 06 01 02 02 03 06 01 02 02 03   ocase...........
+|   3680: 06 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06   ................
+|   3696: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3712: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3728: 02 01 04 6f 6d 69 74 1f 02 02 01 02 02 01 02 02   ...omit.........
+|   3744: 01 05 72 74 72 65 65 19 02 03 01 02 03 01 02 03   ..rtree.........
+|   3760: 04 02 69 6d 01 06 01 02 02 03 06 01 02 02 03 06   ..im............
+|   3776: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3792: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3808: 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02   ................
+|   3824: 01 0a 74 68 72 65 61 64 73 61 66 65 22 02 02 01   ..threadsafe....
+|   3840: 02 02 01 02 01 01 04 76 74 61 62 07 02 04 01 02   .......vtab.....
+|   3856: 04 01 02 04 01 01 78 01 06 01 01 02 01 06 01 01   ......x.........
+|   3872: 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02   ................
+|   3888: 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01   ................
+|   3904: 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06   ................
+|   3920: 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01   ................
+|   3936: 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01   ................
+|   3952: 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02   ................
+|   3968: 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01   ................
+|   3984: 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06   ................
+|   4000: 01 01 02 01 06 01 01 02 01 06 01 ec 02 01 06 01   ................
+|   4016: 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01   ................
+|   4032: 02 01 06 01 01 02 01 06 01 01 01 04 15 13 0c 0c   ................
+|   4048: 12 44 13 11 0f 47 13 0f 0c 0e 11 10 0f 0e 10 0f   .D...G..........
+|   4064: 44 0f 10 40 15 0f 07 01 03 00 14 24 5a 24 24 0f   D..@.......$Z$$.
+|   4080: 0a 03 00 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 4 offset 12288
+|      0: 0a 00 00 00 01 0f fa 00 0f fa 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
+| page 5 offset 16384
+|      0: 0d 00 00 00 24 0c 0a 00 0f d8 0f af 0f 86 0f 74   ....$..........t
+|     16: 0f 61 0f 4e 0f 2f 0f 0f 0e ef 0e d7 0e be 0e a5   .a.N./..........
+|     32: 0e 8d 0e 74 0e 5b 0e 40 0e 24 0e 08 0d ef 0d d5   ...t.[.@.$......
+|     48: 0d bb 0d a0 0d 84 0d 68 0d 4f 0d 35 0d 1b 0c fb   .......h.O.5....
+|     64: 0c da 0c b9 0c 99 0c 78 0c 57 0c 3e 0c 24 0c 0a   .......x.W.>.$..
+|   3072: 00 00 00 00 00 00 00 00 00 00 18 24 05 00 25 0f   ...........$..%.
+|   3088: 19 54 48 52 45 41 44 53 41 46 45 3d 30 58 42 49   .THREADSAFE=0XBI
+|   3104: 4e 41 52 59 18 23 05 00 25 0f 19 54 48 52 45 41   NARY.#..%..THREA
+|   3120: 44 53 41 46 45 3d 30 58 4e 4f 43 41 53 45 17 22   DSAFE=0XNOCASE..
+|   3136: 05 00 25 0f 17 54 48 52 45 41 44 53 41 46 45 3d   ..%..THREADSAFE=
+|   3152: 30 58 52 54 52 49 4d 1f 21 05 00 33 0f 19 4f 4d   0XRTRIM.!..3..OM
+|   3168: 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49 4f   IT LOAD EXTENSIO
+|   3184: 4e 58 42 49 4e 41 52 59 1f 20 05 00 33 0f 19 4f   NXBINARY. ..3..O
+|   3200: 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49   MIT LOAD EXTENSI
+|   3216: 4f 4e 58 4e 4f 43 41 53 45 1e 1f 05 00 33 0f 17   ONXNOCASE....3..
+|   3232: 4f 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53   OMIT LOAD EXTENS
+|   3248: 49 4f 4e 58 52 54 52 49 4d 1f 1e 05 00 33 0f 19   IONXRTRIM....3..
+|   3264: 4d 41 58 20 4d 45 4d 4f 52 59 60 35 30 30 30 30   MAX MEMORY`50000
+|   3280: 30 30 30 58 42 49 4e 41 52 59 1f 1d 05 00 33 0f   000XBINARY....3.
+|   3296: 19 4d 41 58 20 4d 44 4d 4f 52 59 3d 35 30 30 30   .MAX MDMORY=5000
+|   3312: 30 30 30 30 58 4e 4f 43 41 53 45 1e 1c 05 00 33   0000XNOCASE....3
+|   3328: 0f 17 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30   ..MAX MEMORY=500
+|   3344: 30 30 30 30 30 58 52 54 52 49 4d 18 1b 05 00 25   00000XRTRIM....%
+|   3360: 0f 19 45 4e 41 42 4c 45 20 52 54 52 45 45 58 42   ..ENABLE RTREEXB
+|   3376: 49 4e 41 52 59 18 1a 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3392: 4c 45 20 52 54 52 45 45 58 4e 4f 43 41 53 45 17   LE RTREEXNOCASE.
+|   3408: 19 05 00 25 0f 17 45 4e 41 42 4c 45 20 52 54 52   ...%..ENABLE RTR
+|   3424: 45 45 58 52 54 52 49 4d 1a 18 05 00 29 0f 19 45   EEXRTRIM....)..E
+|   3440: 4e 41 42 4c 45 20 4d 45 4d 53 59 53 35 58 42 49   NABLE MEMSYS5XBI
+|   3456: 4e 41 52 59 1a 17 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3472: 45 20 4d 45 4d 53 59 53 35 58 4e 4f 43 41 53 45   E MEMSYS5XNOCASE
+|   3488: 19 16 05 00 29 0f 17 45 4e 41 42 4c 45 20 4d 45   ....)..ENABLE ME
+|   3504: 4d 53 59 53 35 58 52 54 52 49 4d 18 15 05 00 25   MSYS5XRTRIM....%
+|   3520: 0f 19 45 4e 41 42 4c 45 20 4a 53 4f 4e 31 58 42   ..ENABLE JSON1XB
+|   3536: 49 4e 41 52 59 18 14 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3552: 4c 45 20 4a 53 4f 4e 31 58 4e 4f 43 41 53 45 17   LE JSON1XNOCASE.
+|   3568: 13 05 00 25 0f 17 45 4e 41 42 4c 45 20 4a 53 4f   ...%..ENABLE JSO
+|   3584: 4e 31 58 52 54 52 49 4d 1a 12 05 00 29 0f 19 45   N1XRTRIM....)..E
+|   3600: 4e 41 42 4c 45 20 47 45 4f 50 4f 4c 59 58 42 49   NABLE GEOPOLYXBI
+|   3616: 4e 41 52 59 1a 11 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3632: 45 20 47 45 4f 50 4f 4c 59 58 4e 4f 43 41 53 45   E GEOPOLYXNOCASE
+|   3648: 19 10 05 00 29 0f 17 45 4e 41 42 4c 45 20 47 45   ....)..ENABLE GE
+|   3664: 4f 50 4f 4c 59 58 52 54 52 49 4d 17 0f 05 00 23   OPOLYXRTRIM....#
+|   3680: 0f 19 45 4e 41 42 4c 45 20 46 54 53 35 58 42 49   ..ENABLE FTS5XBI
+|   3696: 4e 41 52 59 17 0e 05 00 23 0f 19 45 4e 41 42 4c   NARY....#..ENABL
+|   3712: 45 20 46 54 53 35 58 4e 4f 43 41 53 45 16 0d 05   E FTS5XNOCASE...
+|   3728: 00 23 0f 17 45 4e 41 42 4c 45 20 46 54 53 35 58   .#..ENABLE FTS5X
+|   3744: 52 54 52 49 4d 17 0c 05 00 23 0f 19 45 4e 41 42   RTRIM....#..ENAB
+|   3760: 4c 45 20 46 54 53 34 58 42 49 4e 41 52 59 17 0b   LE FTS4XBINARY..
+|   3776: 05 00 23 0f 19 45 4e 41 42 4c 45 20 46 54 53 34   ..#..ENABLE FTS4
+|   3792: 58 4e 4f 43 41 53 45 16 0a 05 00 23 0f 17 45 4e   XNOCASE....#..EN
+|   3808: 41 42 4c 45 20 46 54 53 34 58 52 54 52 49 4d 1e   ABLE FTS4XRTRIM.
+|   3824: 09 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3840: 54 41 54 20 56 54 41 42 58 42 49 4e 41 52 59 1e   TAT VTABXBINARY.
+|   3856: 08 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3872: 54 41 54 20 56 54 41 42 58 4e 4f 43 41 53 45 1d   TAT VTABXNOCASE.
+|   3888: 07 05 00 31 0f 17 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3904: 54 41 54 20 56 54 41 42 58 52 54 52 49 4d 11 06   TAT VTABXRTRIM..
+|   3920: 05 00 17 0f 19 44 45 42 55 47 58 42 49 4e 41 52   .....DEBUGXBINAR
+|   3936: 59 11 05 05 00 17 0f 19 44 45 42 55 47 58 4e 4f   Y.......DEBUGXNO
+|   3952: 43 41 53 45 10 04 05 00 17 0f 17 44 45 42 55 47   CASE.......DEBUG
+|   3968: 58 52 54 52 49 4d 27 03 05 00 43 0f 19 43 4f 4d   XRTRIM'...C..COM
+|   3984: 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e 30 20   PILER=gcc-5.4.0 
+|   4000: 32 30 31 36 30 36 30 39 58 42 49 4e 41 52 59 27   20160609XBINARY'
+|   4016: 02 05 00 43 0f 19 43 4f 4d 50 49 4c 45 52 3d 67   ...C..COMPILER=g
+|   4032: 63 63 2d 35 2e 34 2e 30 20 32 30 31 36 30 36 30   cc-5.4.0 2016060
+|   4048: 39 58 4e 4f 43 41 53 45 26 01 05 00 43 0f 17 43   9XNOCASE&...C..C
+|   4064: 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e   OMPILER=gcc-5.4.
+|   4080: 30 20 32 30 31 36 30 36 30 39 58 52 54 52 49 4d   0 20160609XRTRIM
+| page 6 offset 20480
+|      0: 0d 00 00 00 24 0e e0 00 0f f8 0f f0 0f e8 0f e0   ....$...........
+|     16: 0f d8 0f d0 0f c8 0f c0 0f b8 0f b0 0f a8 0f a0   ................
+|     32: 0f 98 0f 90 0f 88 0f 80 0f 78 0f 70 0f 68 0f 60   .........x.p.h.`
+|     48: 0f 58 0f 50 0f 48 0f 40 0f 38 0f 30 0f 28 0f 20   .X.P.H.@.8.0.(. 
+|     64: 0f 18 0f 10 0f 08 0f 00 0e f8 0e f0 0e e8 0e e0   ................
+|   3808: 06 24 03 00 12 02 01 01 06 23 03 00 12 02 01 01   .$.......#......
+|   3824: 06 22 03 00 12 02 01 01 06 21 03 00 12 03 01 01   .........!......
+|   3840: 06 20 03 00 12 03 01 01 06 1f 03 00 12 03 01 01   . ..............
+|   3856: 06 1e 03 00 12 03 01 01 06 1d 03 00 12 03 01 01   ................
+|   3872: 06 1c 03 00 12 03 01 01 16 1b 03 00 12 02 01 01   ................
+|   3888: 06 1a 03 00 12 02 01 01 06 19 03 00 12 02 01 01   ................
+|   3904: 06 18 03 00 12 02 01 01 06 17 03 00 12 02 01 01   ................
+|   3920: 06 16 03 00 12 02 01 01 06 15 03 00 12 02 01 01   ................
+|   3936: 06 14 03 00 12 02 01 01 06 13 03 00 12 02 01 01   ................
+|   3952: 06 12 03 00 12 02 01 01 06 11 03 00 12 02 01 01   ................
+|   3968: 06 10 03 00 12 02 01 01 06 0f 03 00 12 02 01 01   ................
+|   3984: 06 0e 03 00 12 02 01 01 06 0d 03 00 12 02 01 01   ................
+|   4000: 06 0c 03 00 12 02 01 01 06 0b 03 00 12 02 01 01   ................
+|   4016: 06 0a 03 00 12 02 01 01 05 09 03 00 12 03 01 01   ................
+|   4032: 06 08 03 00 12 03 01 01 06 07 03 10 12 03 01 01   ................
+|   4048: 06 06 03 00 12 01 01 01 06 05 03 00 12 01 01 01   ................
+|   4064: 06 04 03 00 12 01 01 01 06 03 03 00 12 05 f1 01   ................
+|   4080: 06 02 03 00 12 06 01 01 06 01 03 00 12 06 01 01   ................
+| page 7 offset 24576
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 8 offset 28672
+|      0: 0d 00 00 00 03 0f d6 00 0f f4 0f e9 0f d6 00 00   ................
+|   4048: 00 00 00 00 00 00 11 03 02 2b 69 6e 74 65 67 72   .........+integr
+|   4064: 69 74 79 2d 63 68 65 63 6b 09 02 02 1b 72 65 62   ity-check....reb
+|   4080: 75 69 6c 64 0a 01 02 1d 6f 70 74 69 6d 69 7a 65   uild....optimize
+| end crash-fd2a1313e5b5e9.db
+}]} {}
+
+do_catchsql_test 38.1 {
+  UPDATE t1 SET b=quote(zeroblob(200)) WHERE t1 MATCH 'thread*';
+} {/*malformed database schema*/}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 39.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 24576 pagesize 4096 filename crash-e650fe95502908.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 06   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 06 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 00 00 00 06 0e 0f 00 0f aa 0f 53   ...............S
+|    112: 0e e8 0e 8b 0e 33 0e 0f 00 00 00 00 00 00 00 00   .....3..........
+|   3584: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 22   ................
+|   3600: 06 06 17 11 11 01 31 74 61 62 6c 65 62 62 62 62   ......1tablebbbb
+|   3616: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 62 62   .CREATE TABLE bb
+|   3632: 28 61 29 56 05 06 17 1f 1f 01 7d 74 61 62 6c 65   (a)V.......table
+|   3648: 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63 6f 6e 66   t1_configt1_conf
+|   3664: 69 67 05 43 52 45 41 54 45 20 54 41 42 4c 45 20   ig.CREATE TABLE 
+|   3680: 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b 20 50 52   't1_config'(k PR
+|   3696: 49 4d 41 52 59 20 4b 45 59 2c 20 76 29 20 57 49   IMARY KEY, v) WI
+|   3712: 54 48 4f 55 54 20 52 4f 57 49 44 5b 04 07 17 21   THOUT ROWID[...!
+|   3728: 21 01 81 01 74 61 62 6c 65 74 31 5f 64 6f 63 73   !...tablet1_docs
+|   3744: 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65 04 43 52   izet1_docsize.CR
+|   3760: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 64   EATE TABLE 't1_d
+|   3776: 6f 63 73 69 7a 65 27 28 69 64 20 49 4e 54 45 47   ocsize'(id INTEG
+|   3792: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
+|   3808: 73 7a 20 42 4c 4f 42 29 69 03 07 17 19 19 01 81   sz BLOB)i.......
+|   3824: 2d 74 61 62 6c 65 74 31 5f 69 64 78 74 31 5f 69   -tablet1_idxt1_i
+|   3840: 64 78 03 43 52 45 41 54 45 20 54 41 42 4c 45 20   dx.CREATE TABLE 
+|   3856: 27 74 31 5f 69 64 78 27 28 73 65 67 69 64 2c 20   't1_idx'(segid, 
+|   3872: 74 65 72 6d 2c 20 70 67 6e 6f 2c 20 50 52 49 4d   term, pgno, PRIM
+|   3888: 41 52 59 20 4b 45 59 28 73 65 67 69 64 2c 20 74   ARY KEY(segid, t
+|   3904: 65 72 6d 29 29 20 57 49 54 48 4f 55 54 20 52 4f   erm)) WITHOUT RO
+|   3920: 57 49 44 55 02 07 17 1b 1b 01 81 01 74 61 62 6c   WIDU........tabl
+|   3936: 65 74 31 5f 64 61 74 61 74 31 5f 64 61 74 61 02   et1_datat1_data.
+|   3952: 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74 31   CREATE TABLE 't1
+|   3968: 5f 64 61 74 61 27 28 69 64 20 49 4e 54 45 47 45   _data'(id INTEGE
+|   3984: 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 62   R PRIMARY KEY, b
+|   4000: 6c 6f 63 6b 20 42 4c 4f 42 29 54 01 07 17 11 11   lock BLOB)T.....
+|   4016: 08 81 15 74 61 62 6c 65 74 31 74 31 43 52 45 41   ...tablet1t1CREA
+|   4032: 54 45 20 56 49 52 54 55 41 4c 20 54 41 42 4c 45   TE VIRTUAL TABLE
+|   4048: 20 74 31 20 55 53 49 4e 47 20 66 74 73 35 28 61    t1 USING fts5(a
+|   4064: 2c 62 2c 70 72 65 66 69 78 3d 22 32 2c 32 2c 33   ,b,prefix=.2,2,3
+|   4080: 2c 34 22 2c 20 63 6f 6e 74 65 6e 74 3d 22 22 29   ,4., content=..)
+| page 2 offset 4096
+|      0: 0d 0b 6a 00 37 09 4c 02 0f e7 09 4c 0f c6 0f a4   ..j.7.L....L....
+|     16: 0f 88 0f 6d 0f 4b 0f 2c 0f 0e 0e ec 0e cd 0e ad   ...m.K.,........
+|     32: 0e 8e 0e 6c 0e 4b 0e 29 0e 08 0d e6 0d c4 0d b5   ...l.K.)........
+|     48: 0d 97 0d 76 0d 54 0d 31 0d 15 0c f3 0c d3 0c b5   ...v.T.1........
+|     64: 0c 95 0c 73 0c 54 0c 32 0c 10 0b ee 0b cc 0b b0   ...s.T.2........
+|     80: 0b 8d 0b 7e 0b 48 0b 2e 0b 0b 0a ef 0a cc 0a ad   ...~.H..........
+|     96: 0a 8c 0a 6d 0a 4d 0a 2b 0a 0c 09 ec 09 ca 09 a8   ...m.M.+........
+|    112: 09 86 09 63 0f f1 00 00 00 00 00 00 00 00 00 00   ...c............
+|   2368: 00 00 00 00 00 00 00 00 00 00 00 00 15 0a 03 00   ................
+|   2384: 30 00 00 00 01 01 03 35 00 03 01 01 12 02 01 12   0......5........
+|   2400: 03 01 11 1c 8c 80 80 80 80 10 03 00 3e 00 00 00   ............>...
+|   2416: 17 01 05 05 34 74 61 62 6c 03 02 03 01 04 77 68   ....4tabl.....wh
+|   2432: 65 72 03 02 06 09 1b 8c 80 80 80 80 0f 03 00 3c   er.............<
+|   2448: 00 00 00 16 05 34 66 74 73 34 03 02 02 01 04 6e   .....4fts4.....n
+|   2464: 75 6d 62 03 06 01 04 09 1b 8c 80 80 80 80 0e 03   umb.............
+|   2480: 00 3c 00 00 00 16 04 33 74 68 65 03 06 01 01 04   .<.....3the.....
+|   2496: 01 03 77 68 65 03 02 04 04 0a 1b 8c 80 80 80 80   ..whe...........
+|   2512: 0d 03 00 3c 00 00 00 16 04 33 6e 75 6d 03 06 01   ...<.....3num...
+|   2528: 01 05 01 03 74 61 62 03 02 03 04 0a 19 8c 80 80   ....tab.........
+|   2544: 80 80 0c 03 00 38 00 00 00 14 03 32 77 68 03 02   .....8.....2wh..
+|   2560: 04 00 04 33 66 74 73 03 02 02 04 07 18 8c 80 80   ...3fts.........
+|   2576: 80 80 0b 03 00 36 00 00 00 13 03 32 74 61 03 02   .....6.....2ta..
+|   2592: 03 02 01 68 03 06 01 01 04 04 07 1b 8c 80 80 80   ...h............
+|   2608: 80 0a 03 00 3c 00 00 00 16 03 32 6e 75 03 06 01   ....<.....2nu...
+|   2624: 01 05 01 02 6f 66 03 06 01 01 06 04 09 19 8c 80   ....of..........
+|   2640: 80 80 80 09 03 00 38 00 00 00 14 03 32 66 74 03   ......8.....2ft.
+|   2656: 02 02 01 02 69 73 03 06 01 01 03 04 07 18 8c 80   ....is..........
+|   2672: 80 80 80 08 03 00 36 00 00 00 13 02 31 74 03 08   ......6.....1t..
+|   2688: 03 01 01 04 01 01 77 03 02 04 04 09 1a 8c 80 80   ......w.........
+|   2704: 80 80 07 03 00 3a ff 00 00 15 02 31 6e 03 08 01   .....:.....1n...
+|   2720: 01 02 05 01 01 6f 03 06 01 01 06 04 09 18 8c 80   .....o..........
+|   2736: 80 80 80 06 03 00 36 00 00 00 13 04 02 31 66 03   ......6......1f.
+|   2752: 02 02 01 01 69 03 06 01 01 03 05 06 1c 8c 80 80   ....i...........
+|   2768: 80 80 05 03 00 3e 00 00 00 17 04 30 74 68 65 03   .....>.....0the.
+|   2784: 06 00 f1 04 01 05 77 68 65 72 65 03 02 04 0a 15   ......where.....
+|   2800: 8c 80 80 80 80 04 03 00 30 00 00 00 11 01 01 06   ........0.......
+|   2816: 06 30 74 61 62 6c 65 03 02 03 07 1c 8c 80 80 80   .0table.........
+|   2832: 80 03 03 00 3e 00 00 00 17 07 30 6e 75 6d 62 65   ....>.....0numbe
+|   2848: 72 03 06 01 01 05 01 02 6f 66 03 06 04 0d 13 8c   r.......of......
+|   2864: 80 80 80 80 02 03 00 2c 00 00 00 0f 01 01 03 02   .......,........
+|   2880: 30 6e 03 06 01 01 02 07 1b 8c 80 80 80 80 01 03   0n..............
+|   2896: 00 3c 00 00 00 16 08 30 66 74 73 34 61 75 78 03   .<.....0fts4aux.
+|   2912: 02 02 01 02 69 73 03 06 04 0c 00 00 00 14 2a 00   ....is........*.
+|   2928: 00 00 01 01 02 24 00 02 01 01 12 02 01 12 08 88   .....$..........
+|   2944: 80 80 80 80 12 03 00 16 00 00 00 05 02 1c 88 80   ................
+|   2960: 80 80 80 11 03 00 3e 00 00 00 17 05 34 72 6f 77   ......>.....4row
+|   2976: 73 02 06 01 01 05 01 04 74 68 65 72 02 02 04 0b   s.......ther....
+|   2992: 15 88 80 80 80 80 10 03 00 30 00 00 00 11 02 01   .........0......
+|   3008: 01 07 05 34 62 65 74 77 02 02 04 08 1b 88 80 80   ...4betw........
+|   3024: 80 80 0f 03 00 3c 00 00 00 16 04 04 33 72 6f 77   .....<......3row
+|   3040: 02 06 01 01 05 01 03 74 68 65 02 08 05 0a 1b 88   .......the......
+|   3056: 80 80 80 80 0e 03 00 3c 00 00 00 16 01 01 02 04   .......<........
+|   3072: 33 61 72 65 02 02 03 01 03 62 65 74 02 02 07 08   3are.....bet....
+|   3088: 1b 88 80 80 80 80 0d 03 00 3c 00 00 00 16 03 32   .........<.....2
+|   3104: 74 68 02 08 02 01 01 07 00 04 33 61 6e 64 02 06   th........3and..
+|   3120: 04 0a 1b 88 80 80 80 80 0c 03 00 3c 00 00 00 16   ...........<....
+|   3136: 03 32 69 6e 02 06 01 01 06 01 02 72 6f 02 06 01   .2in.......ro...
+|   3152: 01 05 04 09 18 88 80 80 80 80 0b 03 00 36 00 00   .............6..
+|   3168: 00 13 02 03 32 61 72 02 02 03 01 02 62 65 02 02   ....2ar.....be..
+|   3184: 04 05 07 1b 88 80 80 80 80 0a 03 00 3c 00 00 00   ............<...
+|   3200: 16 02 31 74 02 08 02 01 01 07 00 03 32 61 6e 02   ..1t........2an.
+|   3216: 06 01 01 04 09 19 88 80 80 80 80 09 03 00 38 00   ..............8.
+|   3232: 00 00 14 02 31 6e 02 06 01 01 03 01 01 72 02 06   ....1n.......r..
+|   3248: 01 01 05 04 08 17 88 80 80 80 80 08 03 00 34 00   ..............4.
+|   3264: 00 00 12 02 31 62 02 02 04 01 01 69 02 06 01 01   ....1b.....i....
+|   3280: 06 04 06 19 88 80 80 80 80 07 03 00 38 00 00 00   ............8...
+|   3296: 14 04 02 31 32 02 02 05 01 01 61 02 08 03 01 01   ...12.....a.....
+|   3312: 02 05 06 1b 88 80 80 80 80 06 03 00 3c 00 00 00   ............<...
+|   3328: 16 06 30 74 68 65 72 65 02 02 02 00 02 31 31 02   ..0there.....11.
+|   3344: 06 01 01 04 0a 15 88 80 80 80 80 05 03 00 30 00   ..............0.
+|   3360: 00 00 11 01 01 05 04 30 74 68 65 02 06 01 01 07   .......0the.....
+|   3376: 07 1c 88 80 80 80 80 04 03 00 3e 00 00 00 17 01   ..........>.....
+|   3392: 01 06 02 30 6e 02 06 01 01 03 01 04 72 6f 77 73   ...0n.......rows
+|   3408: 02 06 07 08 1b 88 80 80 80 80 03 03 00 3c 00 00   .............<..
+|   3424: 00 16 08 30 62 65 74 77 65 65 6e 02 02 04 01 02   ...0between.....
+|   3440: 69 6e 02 06 04 0c 1a 88 80 80 80 80 02 03 00 3a   in.............:
+|   3456: 00 00 00 15 04 30 61 6e 64 02 06 01 01 02 02 02   .....0and.......
+|   3472: 72 65 02 02 03 04 0a 17 88 80 80 80 80 01 03 00   re..............
+|   3488: 34 00 00 00 12 02 30 31 02 06 01 01 04 01 01 32   4.....01.......2
+|   3504: 02 02 05 04 08 08 84 80 80 80 81 12 03 00 16 00   ................
+|   3520: 00 00 05 04 1b 84 61 80 80 80 11 03 00 3c 00 00   ......a......<..
+|   3536: 00 16 05 34 74 61 62 6c 01 06 01 01 05 02 03 65   ...4tabl.......e
+|   3552: 72 6d 01 02 04 0b 1b 84 80 80 80 80 10 03 00 3c   rm.............<
+|   3568: 00 00 00 16 05 34 65 61 63 68 01 02 03 01 04 70   .....4each.....p
+|   3584: 72 65 73 01 02 05 04 09 1a 84 80 80 80 80 0f 03   res.............
+|   3600: 00 3a 00 00 00 15 04 33 74 65 72 01 02 04 02 02   .:.....3ter.....
+|   3616: 68 65 01 06 01 01 03 04 08 1b 84 80 80 80 80 0e   he..............
+|   3632: 03 00 3c 00 00 00 16 04 33 70 72 65 01 02 05 01   ..<.....3pre....
+|   3648: 03 74 61 62 01 06 01 01 05 04 08 1a 84 80 80 80   .tab............
+|   3664: 80 0d 03 00 3a 00 00 00 15 04 33 66 6f 72 01 02   ....:.....3for..
+|   3680: 02 02 02 74 73 01 06 01 01 04 04 08 1b 84 80 80   ...ts...........
+|   3696: 80 80 0c 03 00 3c 00 00 00 16 03 32 74 68 01 06   .....<.....2th..
+|   3712: 01 01 03 00 04 33 65 61 63 01 02 03 04 09 18 84   .....3eac.......
+|   3728: 80 80 80 80 0b 03 00 36 00 00 00 13 03 32 74 71   .......6.....2tq
+|   3744: 01 06 01 01 05 02 01 65 01 02 04 04 09 19 84 80   .......e........
+|   3760: 80 80 80 0a 03 00 38 00 00 00 14 03 32 69 6e 01   ......8.....2in.
+|   3776: 06 01 01 02 01 02 70 72 01 02 05 0b 89 18 84 80   ......pr........
+|   3792: 80 80 80 09 03 00 36 00 00 00 13 03 32 66 6f 01   ......6.....2fo.
+|   3808: 02 02 02 01 74 01 06 01 01 04 04 07 1b 84 80 80   ....t...........
+|   3824: 80 80 08 03 00 3c 00 00 00 16 02 31 74 01 0a 04   .....<.....1t...
+|   3840: 01 01 03 04 00 03 32 65 61 01 02 03 04 0a 17 84   ......2ea.......
+|   3856: 80 80 80 80 07 03 00 34 00 00 00 12 02 31 69 01   .......4.....1i.
+|   3872: 06 01 01 02 01 01 70 01 02 05 04 08 18 84 80 80   ......p.........
+|   3888: 80 80 06 03 00 36 00 00 00 13 02 31 65 01 02 03   .....6.....1e...
+|   3904: 01 01 66 01 08 02 01 01 04 04 06 1b 84 80 80 80   ..f.............
+|   3920: 80 05 03 00 3c 00 00 00 16 05 30 74 65 72 6d 01   ....<.....0term.
+|   3936: 02 04 02 02 68 65 01 06 01 01 03 04 09 14 84 80   ....he..........
+|   3952: 80 80 80 04 03 00 2e 00 00 00 10 06 30 74 61 62   ............0tab
+|   3968: 6c 65 01 06 01 01 05 04 15 84 80 80 80 80 03 03   le..............
+|   3984: 00 30 00 00 00 11 02 08 30 70 72 65 73 65 6e 74   .0......0present
+|   4000: 01 02 05 05 1b 84 80 80 80 80 02 03 00 3c 00 00   .............<..
+|   4016: 00 16 04 30 66 74 73 01 06 01 01 04 01 02 69 6e   ...0fts.......in
+|   4032: 01 06 01 01 04 0a 1a 84 80 80 80 80 01 03 00 3a   ...............:
+|   4048: 00 00 00 15 05 30 65 61 63 f4 01 02 03 01 03 66   .....0eac......f
+|   4064: 6f 72 01 02 02 04 09 06 01 03 00 12 03 0b 0f 00   or..............
+|   4080: 00 08 8c 80 80 80 80 11 03 00 16 00 00 00 05 04   ................
+| page 3 offset 8192
+|      0: 0a 00 00 00 32 0e 4f 00 0f fa 0f f1 0f e9 0f e1   ....2.O.........
+|     16: 0f d8 0f d1 0f c9 0f c1 0f b9 0f b1 0f a9 0f a0   ................
+|     32: 0f 98 0f 90 0f 87 0f 80 0f 78 0f 71 0f 68 0f 5f   .........x.q.h._
+|     48: 0f 56 0f 4d 0f 41 0f 38 0f 2f 0f 26 0f 1d 0f 13   .V.M.A.8./.&....
+|     64: 0f 0a 0f 01 0e f7 0e ee 0e e6 0e dd 0e d6 0e cd   ................
+|     80: 0e c3 0e ba 0e b0 0e a8 0e 9f 0e 96 0e 8e 0e 85   ................
+|     96: 0e 7c 0e 73 0e 6a 0e 60 0e 58 0e 4f 00 00 00 00   .|.s.j.`.X.O....
+|   3648: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08   ................
+|   3664: 04 01 10 01 03 34 74 20 07 04 01 0e 01 03 34 1e   .....4t ......4.
+|   3680: 09 04 01 12 01 03 33 74 68 1c 08 04 01 10 01 03   ......3th.......
+|   3696: 33 6e 1a 08 04 01 10 01 03 32 77 18 08 04 01 10   3n.......2w.....
+|   3712: 01 03 32 74 16 08 04 01 10 01 03 32 6e 14 07 04   ..2t.......2n...
+|   3728: 01 0e 01 03 32 12 08 04 01 10 01 03 31 74 10 08   ....2.......1t..
+|   3744: 04 01 10 01 03 31 6e 0e 07 04 01 0e 01 03 31 0c   .....1n.......1.
+|   3760: 09 04 01 12 01 03 30 74 68 0a 08 04 01 10 01 03   ......0th.......
+|   3776: 30 74 08 09 04 01 12 01 03 30 6e 75 06 08 04 01   0t.......0nu....
+|   3792: 10 01 03 30 6e 04 06 04 01 0c 01 03 02 08 04 01   ...0n...........
+|   3808: 10 01 02 34 72 22 07 04 01 0e 01 02 34 20 08 04   ...4r.......4 ..
+|   3824: 01 10 01 02 33 72 1e 09 04 01 12 01 02 33 61 72   ....3r.......3ar
+|   3840: 1c 08 04 01 10 01 02 32 74 1a 08 04 01 10 b3 02   .......2t.......
+|   3856: 32 69 18 09 04 01 12 01 02 32 61 72 16 08 04 01   2i.......2ar....
+|   3872: 10 01 02 31 74 14 08 04 01 10 01 02 31 6e 12 08   ...1t.......1n..
+|   3888: 04 01 10 01 02 31 62 10 08 04 01 10 01 02 31 32   .....1b.......12
+|   3904: 0e 0b 04 01 16 01 02 30 74 68 65 72 0c 08 04 01   .......0ther....
+|   3920: 10 01 02 30 74 0a 08 04 01 10 01 02 30 6e 08 08   ...0t.......0n..
+|   3936: 04 01 10 01 02 30 62 06 08 04 01 10 01 02 30 61   .....0b.......0a
+|   3952: 05 06 04 01 0c 01 02 02 07 04 09 10 01 34 74 22   .............4t.
+|   3968: 06 04 09 0e 01 34 20 08 04 09 12 01 33 74 65 1e   .....4 .....3te.
+|   3984: 07 04 09 10 01 33 70 1c 07 04 09 10 01 33 66 1a   .....3p......3f.
+|   4000: 08 04 09 12 01 32 74 68 18 07 04 09 10 01 32 2d   .....2th......2-
+|   4016: 16 07 04 09 10 01 32 69 14 07 04 09 10 01 32 66   ......2i......2f
+|   4032: 12 07 04 09 10 01 31 74 10 07 04 09 10 01 31 69   ......1t......1i
+|   4048: 0e 06 04 09 0e 01 31 0c 08 04 09 12 01 30 74 65   ......1......0te
+|   4064: 0a 07 04 09 10 01 30 74 08 07 04 09 10 01 30 70   ......0t......0p
+|   4080: 06 08 04 09 12 01 30 66 74 04 05 04 09 0c 01 02   ......0ft.......
+| page 4 offset 12288
+|      0: 0d 00 00 00 03 0f eb 00 0f f9 0f f2 0f eb 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 05 03 03 00 10   ................
+|   4080: 03 05 05 02 03 00 10 04 06 05 01 03 00 10 04 03   ................
+| page 5 offset 16384
+|      0: 0a 00 00 00 02 0f eb 00 0f eb 0f f4 00 00 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 08 03 15 01 70   ...............p
+|   4080: 67 73 7a 18 0b 03 1b 01 76 65 72 73 69 6f 6e 04   gsz.....version.
+| page 6 offset 20480
+|      0: 0d 00 00 00 03 0f f2 00 0f fc 0f f7 0f f2 00 00   ................
+|   4080: 00 00 03 03 02 01 03 03 02 02 01 02 02 01 02 09   ................
+| end crash-e650fe95502908.db
+}]} {}
+
+do_execsql_test 39.1 {
+  SELECT rowid FROM t1('t*');
+} {1 2 3}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 40.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 24576 pagesize 4096 filename crash2.txt.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 06   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 06 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 00 00 00 06 0e 0f 00 0f aa 0f 53   ...............S
+|    112: 0e e8 0e 8b 0e 33 0e 0f 00 00 00 00 00 00 00 00   .....3..........
+|   3584: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 22   ................
+|   3600: 06 06 17 11 11 01 31 74 61 62 6c 65 62 62 62 62   ......1tablebbbb
+|   3616: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 62 62   .CREATE TABLE bb
+|   3632: 28 61 29 56 05 06 17 1f 1f 01 7d 74 61 52 6c 65   (a)V.......taRle
+|   3648: 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63 6f 6e 66   t1_configt1_conf
+|   3664: 69 67 05 43 52 45 41 54 45 20 54 41 42 4c 45 20   ig.CREATE TABLE 
+|   3680: 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b 20 50 52   't1_config'(k PR
+|   3696: 49 4d 41 52 59 20 4b 45 59 2c 20 76 29 20 57 49   IMARY KEY, v) WI
+|   3712: 54 48 4f 55 54 20 52 4f 57 49 44 5b 04 07 17 21   THOUT ROWID[...!
+|   3728: 21 01 81 01 74 61 62 6c 65 74 31 5f 64 6f 73 73   !...tablet1_doss
+|   3744: 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65 04 43 52   izet1_docsize.CR
+|   3760: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 64   EATE TABLE 't1_d
+|   3776: 6f 63 73 69 7a 65 27 28 69 64 20 49 4e 54 45 47   ocsize'(id INTEG
+|   3792: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
+|   3808: 73 7a 20 42 4c 4f 42 29 69 03 07 17 19 19 01 81   sz BLOB)i.......
+|   3824: 2d 74 61 62 6c 65 74 31 5f 69 64 78 74 31 5f 69   -tablet1_idxt1_i
+|   3840: 64 78 03 43 52 45 41 54 45 20 54 41 42 4c 45 20   dx.CREATE TABLE 
+|   3856: 27 74 31 5f 69 64 78 27 28 73 65 67 69 64 2c 20   't1_idx'(segid, 
+|   3872: 74 65 72 6d 2c 20 70 67 6e 6f 2c 20 50 52 49 4d   term, pgno, PRIM
+|   3888: 41 52 59 20 4b 45 59 28 73 65 67 69 64 2c 20 74   ARY KEY(segid, t
+|   3904: 65 72 6d 29 29 20 57 49 54 48 4f 55 54 20 52 4f   erm)) WITHOUT RO
+|   3920: 57 49 44 55 02 07 17 1b 1b 01 81 01 74 61 62 6c   WIDU........tabl
+|   3936: 65 74 31 5f 64 61 74 61 74 31 5f 64 61 74 61 02   et1_datat1_data.
+|   3952: 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74 31   CREATE TABLE 't1
+|   3968: 5f 64 61 74 61 27 28 69 64 20 49 4e 54 45 47 45   _data'(id INTEGE
+|   3984: 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 62   R PRIMARY KEY, b
+|   4000: 6c 6f 63 6b 20 42 4c 4f 42 29 54 01 07 17 11 11   lock BLOB)T.....
+|   4016: 08 81 15 74 61 62 6c 65 74 31 74 31 43 52 45 41   ...tablet1t1CREA
+|   4032: 54 45 20 56 49 52 54 55 41 4c 20 54 41 42 4c 45   TE VIRTUAL TABLE
+|   4048: 20 74 31 20 55 53 49 4e 47 20 66 74 73 35 28 61    t1 USING fts5(a
+|   4064: 2c 62 2c 70 72 65 66 69 78 3d 22 31 2c 32 2c 33   ,b,prefix=.1,2,3
+|   4080: 2c 34 22 2c 20 63 6f 6e 74 65 6e 74 3d 22 22 29   ,4., content=..)
+| page 2 offset 4096
+|      0: 0d 0b 6a 00 37 09 4c 02 0f e7 09 4c 0f c6 0f a4   ..j.7.L....L....
+|     16: 0f 88 0f 6d 0f 4b 0f 2c 0f 0e 0e ec 0e cd 0e ad   ...m.K.,........
+|     32: 0e 8e 0e 6c 0e 4b 0e 29 0e 08 0d e6 0d c4 0d b5   ...l.K.)........
+|     48: 0d 97 0d 76 0d 54 0d 31 0d 15 0c f3 0c d3 0c b5   ...v.T.1........
+|     64: 0c 95 0c 73 0c 54 0c 32 0c 10 0b ee 0b cc 0b b0   ...s.T.2........
+|     80: 0b 8d 0b 7e 0b 48 0b 2e 0b 0b 0a ef 0a cc 0a ad   ...~.H..........
+|     96: 0a 8c 0a 6d 0a 4d 0a 2b 0a 0c 09 ec 09 ca 09 a8   ...m.M.+........
+|    112: 09 86 09 63 0f f1 00 00 00 00 00 00 00 00 00 00   ...c............
+|   2368: 00 00 00 00 00 00 00 00 00 00 00 00 15 0a 03 00   ................
+|   2384: 30 00 00 00 01 01 03 35 00 03 01 01 12 02 01 12   0......5........
+|   2400: 03 01 11 1c 8c 80 80 80 80 10 03 00 3e 00 00 00   ............>...
+|   2416: 17 01 05 05 34 74 61 62 6c 03 02 03 01 04 77 68   ....4tabl.....wh
+|   2432: 65 72 03 02 06 09 1b 8c 80 80 80 80 0f 03 00 3c   er.............<
+|   2448: 00 00 00 16 05 34 66 75 73 34 03 02 02 01 04 6e   .....4fus4.....n
+|   2464: 75 6d 62 03 06 01 04 09 1b 8c 80 80 80 80 0e 03   umb.............
+|   2480: 00 3c 00 00 00 16 04 33 74 68 65 03 06 01 01 04   .<.....3the.....
+|   2496: 01 03 77 68 65 03 02 04 04 0a 1b 8c 80 80 80 80   ..whe...........
+|   2512: 0d 03 00 3c 00 00 00 16 04 33 6e 75 6d 03 06 01   ...<.....3num...
+|   2528: 01 05 01 03 74 61 62 05 62 03 04 0a 19 8c 80 80   ....tab.b.......
+|   2544: 80 80 0c 03 00 38 00 00 00 14 03 32 77 68 03 02   .....8.....2wh..
+|   2560: 04 00 04 33 66 74 73 03 02 02 04 07 18 8c 80 80   ...3fts.........
+|   2576: 80 80 0b 03 00 36 00 00 00 13 03 32 74 61 03 02   .....6.....2ta..
+|   2592: 03 02 01 68 03 06 01 01 04 04 07 1b 8c 80 80 80   ...h............
+|   2608: 80 0a 03 00 3c 00 00 00 16 03 32 6e 75 03 06 01   ....<.....2nu...
+|   2624: 01 05 01 02 6f 66 03 06 01 01 06 04 09 19 8c 80   ....of..........
+|   2640: 80 80 80 09 03 00 38 00 00 00 14 03 32 66 74 03   ......8.....2ft.
+|   2656: 02 02 01 02 69 73 03 06 01 01 03 04 07 18 8c 80   ....is..........
+|   2672: 80 80 80 08 03 00 36 00 00 00 13 02 31 74 03 08   ......6.....1t..
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+|   2736: 80 80 80 06 03 00 36 00 00 00 13 04 02 31 66 03   ......6......1f.
+|   2752: 02 02 01 01 69 03 06 01 01 03 05 06 1c 8c 80 80   ....i...........
+|   2768: 80 80 05 03 00 3e 00 00 00 17 04 30 74 68 65 03   .....>.....0the.
+|   2784: 06 01 01 04 01 05 77 68 65 72 65 03 02 04 0a 15   ......where.....
+|   2800: 8c 80 80 80 80 04 03 00 30 00 00 00 11 01 01 06   ........0.......
+|   2816: 06 30 74 61 62 6c 65 03 02 03 07 1c 8c 80 80 80   .0table.........
+|   2832: 80 03 03 00 3e 00 00 00 17 07 30 6e 75 6d 62 65   ....>.....0numbe
+|   2848: 72 03 06 01 01 05 01 02 6f 66 03 06 04 0d 13 8c   r.......of......
+|   2864: 80 80 80 80 02 03 00 2c 00 00 00 0f 01 01 03 02   .......,........
+|   2880: 30 6e 03 06 01 01 02 07 1b 8c 80 80 80 80 01 03   0n..............
+|   2896: 00 3c 00 00 00 16 08 30 66 74 73 34 61 75 78 03   .<.....0fts4aux.
+|   2912: 02 02 01 02 69 73 03 06 04 0c 00 00 00 14 2a 00   ....is........*.
+|   2928: 00 00 01 01 02 24 00 02 01 01 12 02 01 12 08 88   .....$..........
+|   2944: 80 80 80 80 11 03 00 16 00 00 00 05 02 1c 88 80   ................
+|   2960: 80 80 80 11 03 00 3e 00 00 00 17 05 34 72 6f 77   ......>.....4row
+|   2976: 73 02 06 01 01 05 01 04 74 68 65 72 02 02 04 0b   s.......ther....
+|   2992: 15 88 80 80 80 80 10 03 00 30 00 00 00 11 02 01   .........0......
+|   3008: 01 07 05 34 62 65 74 77 02 02 04 08 1b 88 80 80   ...4betw........
+|   3024: 80 80 0f 03 00 3c 00 00 00 16 04 04 33 72 6f 77   .....<......3row
+|   3040: 02 06 01 01 05 01 03 74 68 65 02 08 05 0a 1b 88   .......the......
+|   3056: 80 80 80 80 0e 03 00 3c 00 00 00 16 02 01 02 04   .......<........
+|   3072: 33 61 72 65 02 02 03 01 03 62 65 74 02 02 07 08   3are.....bet....
+|   3088: 1b 88 80 80 80 80 0d 03 00 3c 00 00 00 16 03 32   .........<.....2
+|   3104: 74 68 02 08 02 01 01 07 00 04 33 61 6e 64 02 06   th........3and..
+|   3120: 04 0a 1b 88 80 80 80 80 0c 03 00 3c 00 00 00 16   ...........<....
+|   3136: 03 32 69 6e 02 06 01 01 06 01 02 72 6f 02 06 01   .2in.......ro...
+|   3152: 01 05 04 09 18 88 80 80 80 80 0b 03 00 36 00 00   .............6..
+|   3168: 00 13 02 03 32 61 72 02 02 03 01 02 62 65 02 02   ....2ar.....be..
+|   3184: 04 05 07 1b 88 80 80 80 80 0a 03 00 3c 00 00 00   ............<...
+|   3200: 16 02 31 74 02 08 02 01 01 07 00 03 32 61 6e 02   ..1t........2an.
+|   3216: 06 01 01 04 09 19 88 80 80 80 80 09 03 00 38 00   ..............8.
+|   3232: 00 00 14 02 31 6e 02 06 01 01 03 01 01 72 02 06   ....1n.......r..
+|   3248: 01 01 05 04 08 17 88 80 80 80 80 08 03 00 34 00   ..............4.
+|   3264: 00 00 12 02 31 62 02 02 04 01 01 69 02 06 01 01   ....1b.....i....
+|   3280: 06 04 06 19 88 80 80 80 80 07 03 00 38 00 00 00   ............8...
+|   3296: 14 04 02 31 32 02 02 05 01 01 61 02 08 03 01 01   ...12.....a.....
+|   3312: 02 05 06 1b 88 80 80 80 80 06 03 00 3c 00 00 00   ............<...
+|   3328: 16 06 30 74 68 65 72 65 02 02 02 00 02 31 31 02   ..0there.....11.
+|   3344: 06 01 01 04 0a 15 88 80 80 80 80 05 03 00 30 00   ..............0.
+|   3360: 00 00 11 01 01 05 04 30 74 68 65 02 06 01 01 07   .......0the.....
+|   3376: 07 1c 88 80 80 80 80 04 03 00 3e 00 00 00 17 01   ..........>.....
+|   3392: 01 06 02 30 6e 02 06 01 01 03 01 04 72 6f 77 73   ...0n.......rows
+|   3408: 02 06 07 08 1b 88 80 80 80 80 03 03 00 3c 00 00   .............<..
+|   3424: 00 16 08 30 62 65 74 77 65 65 6e 02 02 04 01 02   ...0between.....
+|   3440: 69 6e 02 06 04 0c 1a 88 80 80 80 80 02 03 00 3a   in.............:
+|   3456: 00 00 00 15 04 30 61 6e 64 02 06 01 01 02 02 02   .....0and.......
+|   3472: 72 65 02 02 03 04 0a 17 88 80 80 80 80 01 03 00   re..............
+|   3488: 34 00 00 00 12 02 30 31 02 06 01 01 04 01 01 32   4.....01.......2
+|   3504: 02 02 06 04 08 08 84 80 80 80 80 12 03 00 16 00   ................
+|   3520: 00 00 05 04 1b 84 80 80 80 80 11 03 00 3c 00 00   .............<..
+|   3536: 00 16 05 34 74 61 62 6c 01 06 01 01 05 02 03 65   ...4tabl.......e
+|   3552: 72 6d 01 02 04 0b 1b 84 80 80 80 80 10 03 00 3c   rm.............<
+|   3568: 00 00 00 16 05 34 65 61 63 68 01 02 03 01 04 70   .....4each.....p
+|   3584: 72 65 73 01 02 05 04 09 1a 84 80 80 80 80 0f 03   res.............
+|   3600: 00 3a 00 00 00 15 04 33 74 65 72 01 02 04 02 02   .:.....3ter.....
+|   3616: 68 65 01 06 01 01 03 04 08 1b 84 80 80 80 80 0e   he..............
+|   3632: 03 00 3c 00 00 00 16 04 33 70 72 65 01 02 05 01   ..<.....3pre....
+|   3648: 03 74 61 62 01 06 01 01 05 04 08 1a 84 80 80 80   .tab............
+|   3664: 80 0d 03 00 3a 00 00 00 15 04 33 66 6f 72 01 02   ....:.....3for..
+|   3680: 02 02 02 74 73 01 06 01 01 04 04 08 1b 84 80 80   ...ts...........
+|   3696: 80 80 0c 03 00 3c 00 00 00 16 03 32 74 68 01 06   .....<.....2th..
+|   3712: 01 01 03 00 04 33 65 61 63 01 02 03 04 09 18 84   .....3eac.......
+|   3728: 80 80 80 80 0b 03 00 36 00 00 00 13 03 32 74 61   .......6.....2ta
+|   3744: 01 06 01 01 05 02 01 65 01 02 04 04 09 19 84 80   .......e........
+|   3760: 80 80 80 0a 03 00 38 00 00 00 14 03 32 69 6e 01   ......8.....2in.
+|   3776: 06 01 01 02 01 02 70 72 01 02 05 04 09 18 84 80   ......pr........
+|   3792: 80 80 80 09 03 00 36 00 00 00 13 03 32 66 6f 01   ......6.....2fo.
+|   3808: 02 02 02 01 74 01 06 01 01 04 04 07 1b 84 80 80   ....t...........
+|   3824: 80 80 08 03 00 3c 00 00 00 16 02 31 74 01 0a 04   .....<.....1t...
+|   3840: 01 01 03 04 00 03 32 65 61 01 02 03 04 0a 17 84   ......2ea.......
+|   3856: 80 80 80 80 07 03 00 34 00 00 00 12 02 31 69 01   .......4.....1i.
+|   3872: 06 01 01 02 01 01 70 01 02 05 04 08 18 84 80 80   ......p.........
+|   3888: 80 80 06 03 00 36 00 00 00 13 02 31 65 01 02 03   .....6.....1e...
+|   3904: 01 01 66 01 08 02 01 01 04 04 06 1b 84 80 80 80   ..f.............
+|   3920: 80 05 03 00 3c 00 00 00 16 05 30 74 65 72 6d 01   ....<.....0term.
+|   3936: 02 04 02 02 68 65 01 06 01 01 03 04 09 14 84 80   ....he..........
+|   3952: 80 80 80 04 03 00 2e 00 00 00 10 06 30 74 61 62   ............0tab
+|   3968: 6c 65 01 06 00 01 05 04 15 84 80 80 80 80 03 03   le..............
+|   3984: 00 30 00 00 00 11 02 08 30 70 72 65 73 65 6e 74   .0......0present
+|   4000: 01 02 05 05 1b 84 80 80 80 80 02 03 00 3c 00 00   .............<..
+|   4016: 00 16 04 30 66 74 73 01 06 01 01 04 01 02 69 6e   ...0fts.......in
+|   4032: 01 06 01 01 04 0a 1a 84 80 80 80 80 01 03 00 3a   ...............:
+|   4048: 00 00 00 15 05 30 65 61 63 68 01 02 03 01 03 66   .....0each.....f
+|   4064: 6f 72 01 02 02 04 09 06 01 03 00 12 03 0b 0f 00   or..............
+|   4080: 00 08 8c 80 80 80 80 11 03 00 16 00 00 00 05 04   ................
+| page 3 offset 8192
+|      0: 0a 00 00 00 32 0e 4f 00 0f fa 10 f1 0f e9 0f e1   ....2.O.........
+|     16: 0f d8 0f d1 0f c9 0f c1 0f b9 0f b1 0f a9 0f a0   ................
+|     32: 0f 98 0f 90 0f 87 0f 80 0f 78 0f 71 0f 68 0f 5f   .........x.q.h._
+|     48: bd 56 0f 4d 0f 41 0f 38 0f 2f 0f 26 0f 1d 0f 13   .V.M.A.8./.&....
+|     64: 0f 0a 0f 01 0e f7 0e ee 0e e6 0e dd 0e d6 0e cd   ................
+|     80: 0e c3 0e ba 0e b0 0e a8 0e 9f 0e 96 0e 8e 0e 85   ................
+|     96: 0e 7c 0e 73 0e 6a 0e 60 0e 58 0e 4f 00 00 00 00   .|.s.j.`.X.O....
+|   3648: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08   ................
+|   3664: 04 01 10 01 03 34 74 20 07 04 01 0e 01 03 34 1e   .....4t ......4.
+|   3680: 09 04 01 12 01 03 33 74 68 1c 08 04 01 10 01 03   ......3th.......
+|   3696: 33 6e 1a 08 04 01 10 01 03 32 77 18 08 04 01 10   3n.......2w.....
+|   3712: 01 03 32 74 16 08 04 01 10 01 03 32 6e 14 07 04   ..2t.......2n...
+|   3728: 01 0e 01 03 32 12 08 04 01 10 01 03 31 74 10 08   ....2.......1t..
+|   3744: 04 01 10 01 03 31 6e 0e 07 04 01 0e 01 03 31 0c   .....1n.......1.
+|   3760: 09 04 01 12 01 03 30 74 68 0a 08 04 01 10 01 03   ......0th.......
+|   3776: 30 74 08 09 04 01 12 01 03 30 6e 75 06 08 04 01   0t.......0nu....
+|   3792: 10 01 03 30 6e 04 06 04 01 0c 01 05 52 08 04 01   ...0n.......R...
+|   3808: 10 01 02 34 72 22 07 04 01 0e 01 02 34 20 08 04   ...4r.......4 ..
+|   3824: 01 10 01 02 33 72 1e 09 04 01 12 01 02 33 61 72   ....3r.......3ar
+|   3840: 1c 08 04 01 10 01 02 32 74 1a 08 04 01 10 b3 02   .......2t.......
+|   3856: 32 69 18 09 04 01 12 01 02 32 61 72 16 08 04 01   2i.......2ar....
+|   3872: 10 01 02 31 74 14 08 04 01 10 01 02 31 6e 12 08   ...1t.......1n..
+|   3888: 04 01 10 01 02 31 62 10 08 04 01 10 01 02 31 32   .....1b.......12
+|   3904: 0e 0b 04 01 16 01 02 30 74 68 65 72 0c 08 04 01   .......0ther....
+|   3920: 10 01 02 30 74 0a 08 04 01 10 01 02 30 6e 08 08   ...0t.......0n..
+|   3936: 04 01 10 01 02 30 62 06 08 04 01 10 01 02 30 61   .....0b.......0a
+|   3952: 04 06 04 01 0c 01 02 02 07 04 09 10 01 34 74 22   .............4t.
+|   3968: 06 04 09 0e 01 34 20 08 04 09 12 01 33 74 65 1e   .....4 .....3te.
+|   3984: 07 04 09 10 01 33 70 1c 07 04 09 10 01 33 66 1a   .....3p......3f.
+|   4000: 08 04 09 12 01 32 74 68 18 07 04 09 10 01 32 74   .....2th......2t
+|   4016: 16 07 04 09 10 01 32 69 14 07 04 09 10 01 32 66   ......2i......2f
+|   4032: 12 07 04 09 10 01 31 74 10 07 04 09 10 01 31 69   ......1t......1i
+|   4048: 0e 06 04 09 0e 01 31 0c 08 04 09 12 01 30 74 65   ......1......0te
+|   4064: 0a 07 04 09 10 01 30 74 08 07 04 09 10 01 30 70   ......0t......0p
+|   4080: 06 08 04 09 12 01 30 66 74 04 05 04 09 0c 01 02   ......0ft.......
+| page 4 offset 12288
+|      0: 0d 00 00 00 03 0f eb 00 0f f9 0f f2 0f eb 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 05 03 03 00 10   ................
+|   4080: 03 05 05 02 03 00 10 04 06 05 01 03 00 10 04 04   ................
+| page 5 offset 16384
+|      0: 0a 00 00 00 02 0f eb 00 0f eb 0f f4 00 00 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 08 03 15 01 70   ...............p
+|   4080: 67 73 7a 18 0b 03 1b 01 76 65 72 73 69 6f 6e 04   gsz.....version.
+| page 6 offset 20480
+|      0: 0d 00 00 00 03 0f f2 00 0f fc 0f f7 0f f2 00 00   ................
+|   4080: 00 00 03 03 02 01 03 03 02 02 01 02 02 01 02 09   ................
+| end crash2.txt.db
+}]} {}
+
+do_catchsql_test 40.1 {
+  BEGIN;
+  INSERT INTO t1(b) VALUES(X'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');
+  INSERT INTO t1(b) VALUES(X'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');
+  INSERT INTO t1(b) VALUES(X'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');
+} {/*malformed database schema*/}
+
+do_catchsql_test 40.2 {
+  INSERT INTO t1(a,b) VALUES(1,11),(2,22),(3, true ),(4,44);
+} {/*malformed database schema*/}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 41.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a,b,c);
+  REPLACE INTO t1_data VALUES(1,X'255a5824');
+  REPLACE INTO t1_data VALUES(10,X'0a1000000102020002010101020101');
+  INSERT INTO t1_data VALUES(137438953473,X'0000032b0030300102060102060102061f0203010203010203010832303136303630390102070102070102070101340102050102050102050101350102040102040102040207303030303030301c0204010204010204010662696e6272790306010202030601020203060102020306010202030601020203060102020306010202030601020203060102020306010202030601020203060102020108636f6d70696c657201020201020201020201066462737461740702030102030102030424656275670402020102020102020106656e61626c6507020201020201020201020201020201020201020201020201020201020201020201020201020201020201020201020201020201020201020201020201020202087874656e73696f6e1f02040102040102040104667473340a02030102030102030401350d020301020301020301036763630102030102030102030206656f706f6c7910020301020301020301056a736f6e3113020301020301020301046c6f61641f020301020301020301036d61781c02020102020102020205656d6f72791c020301020301020304047379733516020301020301020301066e6f6361736502060102020306010202030601020203060102020306010202030601020203060102020306010202030601020203060102020301b10202030601020201046f6d69741f0202010202010202010572747265651902030102030102030402696d010601020203060102020306010202030601020203060102020306010202030601020203060102020306010202030601020203060102020306010202010a746872656164736166652202020102020102020104767461620702040102040102040101780106010102010601010201060101020106010102010601010201060101020106010102010601010201060101020106010102010601010201060101020106010102010601010201060101020106010102010601010201060101020106010102010601010201060101020106010102010601010201060101020106010102010601010201060101020106010102010601010201060101020106010102010601010201060101020106010102010601010201060101020415130c0c124413110f47130f0c0e11100f0e100f440f1040150f');
+  INSERT INTO t1_data VALUES(274877906945,X'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');
+  INSERT INTO t1_idx VALUES(1,X'',2);
+  INSERT INTO t1_idx VALUES(2,X'',2);
+}
+
+do_catchsql_test 41.1 {
+  INSERT INTO t1(t1) VALUES('optimize');
+} {1 {database disk image is malformed}}
+
+do_catchsql_test 41.2 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 42.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 32768 pagesize 4096 filename 8cfba7fbb67e48de92c6.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 08   .....@  ........
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+|   3488: 32 74 32 08 43 52 45 41 54 45 20 54 41 42 4c 45   2t2.CREATE TABLE
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+|   3520: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   blet1_configt1_c
+|   3536: 6f 6e 66 69 67 07 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
+|   3552: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
+|   3568: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
+|   3584: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 06    WITHOUT ROWID[.
+|   3600: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64   ..!!...tablet1_d
+|   3616: 6f 63 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65   ocsizet1_docsize
+|   3632: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
+|   3648: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
+|   3664: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
+|   3680: 59 2c 20 73 7a 20 42 4c 4f 42 29 5e 05 07 17 21   Y, sz BLOB)^...!
+|   3696: 21 01 81 07 74 61 62 6c 65 74 31 5f 63 6f 6e 74   !...tablet1_cont
+|   3712: 65 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 05 43 52   entt1_content.CR
+|   3728: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63   EATE TABLE 't1_c
+|   3744: 6f 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47   ontent'(id INTEG
+|   3760: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
+|   3776: 63 30 2c 20 63 31 2c 20 63 32 29 69 04 07 17 19   c0, c1, c2)i....
+|   3792: 19 01 81 2d 74 61 62 6c 65 74 31 5f 69 64 78 74   ...-tablet1_idxt
+|   3808: 31 5f 69 64 78 04 43 52 45 41 54 45 20 54 41 42   1_idx.CREATE TAB
+|   3824: 4c 45 20 27 74 31 5f 69 64 78 27 28 73 65 67 69   LE 't1_idx'(segi
+|   3840: 64 2c 20 74 65 72 6d 2c 20 70 67 6e 6f 2c 20 50   d, term, pgno, P
+|   3856: 52 49 4d 41 52 59 20 4b 45 59 28 73 65 67 69 64   RIMARY KEY(segid
+|   3872: 2c 20 74 65 72 6d 29 29 20 57 49 54 48 4f 55 54   , term)) WITHOUT
+|   3888: 20 52 4f 57 49 44 55 03 07 17 1b 1b 01 81 01 74    ROWIDU........t
+|   3904: 61 62 6c 65 74 31 5f 64 61 74 61 74 31 5f 64 61   ablet1_datat1_da
+|   3920: 74 61 03 43 52 45 41 54 45 20 54 41 42 4c 45 20   ta.CREATE TABLE 
+|   3936: 27 74 31 5f 64 61 74 61 27 28 69 64 20 49 4e 54   't1_data'(id INT
+|   3952: 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59   EGER PRIMARY KEY
+|   3968: 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42 29 38 02 06   , block BLOB)8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 35   LE t1 USING fts5
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 39 00 00 00 00 00   (a,b,c)...9.....
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+|   3600: 03 01 04 6c 6f 61 64 1f 02 03 01 02 03 01 02 03   ...load.........
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+|   3824: 01 0a 74 68 72 65 61 64 73 61 66 65 22 02 02 01   ..threadsafe....
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+| page 4 offset 12288
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+| page 5 offset 16384
+|      0: 0d 00 00 00 24 0c 0a 00 0f d8 0f af 0f 86 0f 74   ....$..........t
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+|   3072: 00 00 00 00 00 00 00 00 00 00 18 24 05 00 25 0f   ...........$..%.
+|   3088: 19 54 48 52 45 41 44 53 41 46 45 3d 30 58 42 49   .THREADSAFE=0XBI
+|   3104: 4f 41 52 59 18 23 05 00 25 0f 19 54 48 52 45 41   OARY.#..%..THREA
+|   3120: 44 53 41 46 45 3d 30 58 4e 4f 43 41 53 45 17 22   DSAFE=0XNOCASE..
+|   3136: 05 00 25 0f 17 54 48 52 45 41 44 53 41 46 45 3d   ..%..THREADSAFE=
+|   3152: 30 58 52 54 52 49 4d 1f 21 05 00 33 0f 19 4f 4d   0XRTRIM.!..3..OM
+|   3168: 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49 4f   IT LOAD EXTENSIO
+|   3184: 4e 58 42 49 4e 41 52 59 1f 20 05 00 33 0f 19 4f   NXBINARY. ..3..O
+|   3200: 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49   MIT LOAD EXTENSI
+|   3216: 4f 4e 58 4e 4f 43 41 53 45 1e 1f 05 00 33 0f 17   ONXNOCASE....3..
+|   3232: 4f 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53   OMIT LOAD EXTENS
+|   3248: 49 4f 4e 58 52 54 52 49 4d 1f 1e 05 00 33 0f 19   IONXRTRIM....3..
+|   3264: 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30 30   MAX MEMORY=50000
+|   3280: 30 30 30 58 42 49 4e 41 52 59 1f 1d 05 00 33 0f   000XBINARY....3.
+|   3296: 19 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30   .MAX MEMORY=5000
+|   3312: 30 30 30 30 58 4e 4f 43 41 53 45 1e 1c 05 00 33   0000XNOCASE....3
+|   3328: 0f 17 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30   ..MAX MEMORY=500
+|   3344: 30 30 30 30 30 58 52 54 52 49 4d 18 1b 05 00 25   00000XRTRIM....%
+|   3360: 0f 19 45 4e 41 42 4c 45 20 52 54 52 45 45 58 42   ..ENABLE RTREEXB
+|   3376: 49 4e 41 52 59 18 1a 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3392: 4c 45 20 52 54 52 45 45 58 4e 4f 43 41 53 45 17   LE RTREEXNOCASE.
+|   3408: 19 05 00 25 0f 17 45 4e 41 42 4c 45 20 52 54 52   ...%..ENABLE RTR
+|   3424: 45 45 58 52 54 52 49 4d 1a 18 05 00 29 0f 19 45   EEXRTRIM....)..E
+|   3440: 4e 41 42 4c 45 20 4d 45 4d 53 59 53 35 58 42 49   NABLE MEMSYS5XBI
+|   3456: 4e 41 52 59 1a 17 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3472: 45 20 4d 45 4d 53 59 53 35 58 4e 4f 43 41 53 45   E MEMSYS5XNOCASE
+|   3488: 19 16 05 00 29 0f 17 45 4e 41 42 4c 45 20 4d 45   ....)..ENABLE ME
+|   3504: 4d 53 59 53 35 58 52 54 52 49 4d 18 15 05 00 25   MSYS5XRTRIM....%
+|   3520: 0f 19 45 4e 41 42 4c 45 20 4a 53 4f 4e 31 58 42   ..ENABLE JSON1XB
+|   3536: 49 4e 41 52 59 18 14 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3552: 4c 45 20 4a 53 4f 4e 31 58 4e 4f 43 41 53 45 17   LE JSON1XNOCASE.
+|   3568: 13 05 00 25 0f 17 45 4e 41 42 4c 45 20 4a 53 4f   ...%..ENABLE JSO
+|   3584: 4e 31 58 52 54 52 49 4d 1a 12 05 00 29 0f 19 45   N1XRTRIM....)..E
+|   3600: 4e 41 42 4c 45 20 47 45 4f 50 4f 4c 59 57 42 49   NABLE GEOPOLYWBI
+|   3616: 4e 41 52 59 1a 11 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3632: 45 20 47 45 4f 50 4f 4c 59 58 4e 4f 42 41 53 45   E GEOPOLYXNOBASE
+|   3648: 19 10 05 00 29 0f 17 45 4e 41 42 4c 45 20 47 45   ....)..ENABLE GE
+|   3664: 4f 50 4f 4c 59 58 52 54 52 49 4d 17 0f 05 00 23   OPOLYXRTRIM....#
+|   3680: 0f 19 45 4e 41 42 4c 45 20 46 54 53 35 58 42 49   ..ENABLE FTS5XBI
+|   3696: 4e 41 52 59 17 0e 05 00 23 0f 19 45 4e 41 42 4c   NARY....#..ENABL
+|   3712: 45 20 46 54 53 35 58 4e 4f 43 41 53 45 16 0d 05   E FTS5XNOCASE...
+|   3728: 00 23 0f 17 45 4e 41 42 4c 45 20 46 54 53 35 58   .#..ENABLE FTS5X
+|   3744: 52 54 52 49 4d 17 0c 05 00 23 0f 19 45 4e 41 42   RTRIM....#..ENAB
+|   3760: 4c 45 20 46 54 53 34 58 42 49 4e 41 52 59 17 0b   LE FTS4XBINARY..
+|   3776: 05 00 23 0f 19 45 4e 41 42 4c 45 20 46 54 53 34   ..#..ENABLE FTS4
+|   3792: 58 4e 4f 43 41 53 45 16 0a 05 00 23 0f 17 45 4e   XNOCASE....#..EN
+|   3808: 41 42 4c 45 20 46 54 53 34 58 52 54 52 49 4d 1e   ABLE FTS4XRTRIM.
+|   3824: 09 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3840: 54 41 54 20 56 54 41 42 58 42 49 4e 41 52 59 1e   TAT VTABXBINARY.
+|   3856: 08 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3872: 54 41 54 20 56 54 41 42 58 4e 4f 43 41 53 45 1d   TAT VTABXNOCASE.
+|   3888: 07 05 00 31 0f 17 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3904: 54 41 54 20 56 54 41 42 58 52 54 52 49 4d 11 06   TAT VTABXRTRIM..
+|   3920: 05 00 17 0f 19 44 45 42 55 47 58 42 49 4e 41 52   .....DEBUGXBINAR
+|   3936: 59 11 05 05 00 17 0f 19 44 45 42 55 47 58 4e 4f   Y.......DEBUGXNO
+|   3952: 43 41 53 45 10 04 05 00 17 0f 17 44 45 42 55 47   CASE.......DEBUG
+|   3968: 58 52 54 52 49 4d 27 03 05 00 43 0f 19 43 4f 4d   XRTRIM'...C..COM
+|   3984: 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e 30 20   PILER=gcc-5.4.0 
+|   4000: 32 30 31 36 30 36 30 39 52 02 49 4e 41 52 59 27   20160609R.INARY'
+|   4016: 02 05 00 43 0f 19 43 4f 4d 50 49 4c 45 52 3d 67   ...C..COMPILER=g
+|   4032: 63 63 2d 35 2e 34 2e 30 20 32 30 31 36 30 36 30   cc-5.4.0 2016060
+|   4048: 39 58 4e 4f 43 41 53 45 26 01 05 00 43 0f 17 43   9XNOCASE&...C..C
+|   4064: 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e   OMPILER=gcc-5.4.
+|   4080: 30 20 32 30 31 36 30 36 30 39 58 52 54 52 49 4d   0 20160609XRTRIM
+| page 6 offset 20480
+|      0: 0d 00 00 00 24 0e e0 00 0f f8 0f f0 0f e8 0f e0   ....$...........
+|     16: 0f d8 0f d0 0f c8 0f c0 0f b8 0f b0 0f a8 0f a0   ................
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+|     48: 0f 58 0f 50 0f 48 0f 40 0f 38 0f 30 0f 28 0f 20   .X.P.H.@.8.0.(. 
+|     64: 0f 18 0f 10 0f 08 0f 00 0e f8 0e f0 0e e8 0e e0   ................
+|   3808: 06 24 03 00 12 02 01 01 06 23 03 00 12 02 01 01   .$.......#......
+|   3824: 06 22 03 00 12 02 01 01 06 21 03 00 12 03 01 01   .........!......
+|   3840: 06 20 03 00 12 03 01 01 06 1f 03 00 12 03 01 01   . ..............
+|   3856: 06 1e 03 00 12 03 01 01 06 1d 03 00 12 03 01 01   ................
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+|   3920: 06 16 03 00 12 02 01 01 06 15 03 00 12 02 01 01   ................
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+|   4000: 06 0c 03 00 12 02 01 01 06 0b 03 00 12 02 01 01   ................
+|   4016: 06 0a 03 00 12 02 01 01 06 09 03 00 12 03 01 01   ................
+|   4032: 06 08 03 00 12 03 01 01 06 07 03 00 12 03 01 01   ................
+|   4048: 06 06 03 00 12 01 01 01 06 05 03 00 12 01 01 01   ................
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+| page 7 offset 24576
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 8 offset 28672
+|      0: 0d 00 00 00 03 0f d6 00 0f f4 0f e9 0f d6 00 00   ................
+|   4048: 00 00 00 00 00 00 11 03 02 2b 69 6e 74 65 67 72   .........+integr
+|   4064: 69 74 79 2d 63 68 65 63 6b 09 02 02 1b 72 65 62   ity-check....reb
+|   4080: 75 69 6c 64 0a 01 02 1d 6f 70 74 69 5d 69 7a 65   uild....opti]ize
+| end 8cfba7fbb67e48de92c6.db
+}]} {}
+
+do_catchsql_test 42.1 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 43.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 24576 pagesize 4096 filename 89028ffd2c29b679e250.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 06   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 06 00 00 00 04   ................
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+|    112: 0e e8 0e 8b 0e 33 0e 0f 00 00 00 00 00 00 00 00   .....3..........
+|   3584: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 22   ................
+|   3600: 06 06 17 11 11 01 31 74 61 62 6c 65 62 62 62 62   ......1tablebbbb
+|   3616: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 62 62   .CREATE TABLE bb
+|   3632: 28 61 29 56 05 06 17 1f 1f 01 7d 74 61 62 6c 65   (a)V.......table
+|   3648: 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63 6f 6e 66   t1_configt1_conf
+|   3664: 69 67 05 43 52 45 41 54 45 20 54 41 42 4c 45 20   ig.CREATE TABLE 
+|   3680: 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b 20 50 52   't1_config'(k PR
+|   3696: 49 4d 41 52 59 20 4b 45 59 2c 20 76 29 20 57 49   IMARY KEY, v) WI
+|   3712: 54 48 4f 55 54 20 52 4f 57 49 44 5b 04 07 17 21   THOUT ROWID[...!
+|   3728: 21 01 81 01 74 61 62 6c 65 74 31 5f 64 6f 63 73   !...tablet1_docs
+|   3744: 69 7a 65 74 31 5f 12 6f 63 73 69 7a 65 04 43 52   izet1_.ocsize.CR
+|   3760: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 64   EATE TABLE 't1_d
+|   3776: 6f 63 73 69 7a 65 27 28 69 64 20 49 4e 54 45 47   ocsize'(id INTEG
+|   3792: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
+|   3808: 73 7a 20 42 4c 4f 42 29 69 03 07 17 19 19 01 81   sz BLOB)i.......
+|   3824: 2d 74 61 62 6c 65 74 31 5f 69 64 78 74 31 5f 69   -tablet1_idxt1_i
+|   3840: 64 78 03 43 52 45 41 54 45 20 54 41 42 4c 45 20   dx.CREATE TABLE 
+|   3856: 27 74 31 5f 69 64 78 27 28 73 65 67 69 64 2c 20   't1_idx'(segid, 
+|   3872: 74 65 72 6d 2c 20 70 67 6e 6f 2c 20 50 52 49 4d   term, pgno, PRIM
+|   3888: 41 52 59 20 4b 45 59 28 73 65 67 69 64 2c 20 74   ARY KEY(segid, t
+|   3904: 65 72 6d 29 29 20 57 49 54 48 4f 55 54 20 52 4f   erm)) WITHOUT RO
+|   3920: 57 49 44 55 02 07 17 1b 1b 01 81 01 74 61 62 6c   WIDU........tabl
+|   3936: 65 74 31 5f 64 61 74 61 74 31 5e 64 61 74 61 02   et1_datat1^data.
+|   3952: 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74 31   CREATE TABLE 't1
+|   3968: 5f 64 61 74 61 27 28 69 64 20 49 4e 54 45 47 45   _data'(id INTEGE
+|   3984: 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 62   R PRIMARY KEY, b
+|   4000: 6c 6f 63 6b 20 42 4c 4f 42 29 54 01 07 17 11 11   lock BLOB)T.....
+|   4016: 08 81 15 74 61 62 6c 65 74 31 74 31 43 52 45 41   ...tablet1t1CREA
+|   4032: 54 45 20 56 49 52 54 55 41 4c 20 54 41 42 4c 45   TE VIRTUAL TABLE
+|   4048: 20 74 31 20 55 53 49 4e 47 20 66 74 73 35 28 61    t1 USING fts5(a
+|   4064: 2c 62 2c 70 72 65 66 69 78 3d 22 31 2c 32 2c 33   ,b,prefix=.1,2,3
+|   4080: 2c 34 22 2c 20 63 6f 6e 74 65 6e 74 3d 22 22 29   ,4., content=..)
+| page 2 offset 4096
+|      0: 0d 0b 6a 00 37 09 4c 02 0f e8 09 4c 0f c6 0f a4   ..j.7.L....L....
+|     16: 0f 88 0f 6d 0f 4b 0f 2c 0f 0e 0e ec 0e cd 0e ad   ...m.K.,........
+|     32: 0e 8e 0e 6c 0e 4b 0e 29 0e 08 0d e6 0d c4 0d b5   ...l.K.)........
+|     48: 0d 97 0d 76 0d 54 0d 31 0d 15 0c f3 0c d3 0c b5   ...v.T.1........
+|     64: 0c 95 0c 73 0c 54 0c 32 0c 10 0b ee 0b cc 0b b0   ...s.T.2........
+|     80: 0b 8d 0b 7e 0b 48 0b 2e 0b 0b 0a ef 0a cc 0a ad   ...~.H..........
+|     96: 0a 8c 0a 6d 0a 4d 0a 2b 0a 0c 09 ec 09 ca 09 a8   ...m.M.+........
+|    112: 09 86 09 63 0f f1 00 00 00 00 00 00 00 00 00 00   ...c............
+|   2368: 00 00 00 00 00 00 00 00 00 00 00 00 15 0a 03 00   ................
+|   2384: 30 00 00 00 01 01 03 35 00 03 00 01 12 02 01 12   0......5........
+|   2400: 03 01 11 1c 8c 80 80 80 80 10 03 00 3e 00 00 00   ............>...
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+|   2448: 00 00 00 16 05 34 66 74 73 34 03 02 02 01 04 6e   .....4fts4.....n
+|   2464: 75 6d 62 03 06 01 04 09 1b 8c 80 80 80 80 0e 03   umb.............
+|   2480: 00 3c 00 00 00 16 04 33 74 68 65 03 06 01 01 04   .<.....3the.....
+|   2496: 01 03 77 68 65 03 02 04 04 0a 1b 8c 80 80 80 80   ..whe...........
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+|   3152: 01 05 04 09 18 88 80 80 80 80 0b 03 00 36 00 00   .............6..
+|   3168: 00 13 02 03 32 61 72 02 02 03 01 02 62 65 02 02   ....2ar.....be..
+|   3184: 04 05 07 1b 88 80 80 80 80 0a 03 00 3c 00 00 00   ............<...
+|   3200: 16 02 31 74 02 08 02 01 01 07 00 03 32 61 6e 02   ..1t........2an.
+|   3216: 06 01 01 04 09 19 88 80 80 80 80 09 03 00 38 00   ..............8.
+|   3232: 00 00 14 02 31 6e 02 06 01 01 03 01 01 72 02 06   ....1n.......r..
+|   3248: 01 01 05 04 08 17 88 80 80 80 80 08 03 00 34 00   ..............4.
+|   3264: 00 00 12 02 31 62 02 02 04 01 01 69 02 06 01 01   ....1b.....i....
+|   3280: 06 04 06 19 88 80 80 80 80 07 03 00 38 00 00 00   ............8...
+|   3296: 14 04 02 31 32 02 02 05 01 01 61 02 08 03 01 01   ...12.....a.....
+|   3312: 02 05 06 1b 88 80 80 80 80 06 03 00 3c 00 00 00   ............<...
+|   3328: 16 06 30 74 68 65 72 65 02 02 02 00 02 31 31 02   ..0there.....11.
+|   3344: 06 01 01 04 0a 15 88 80 80 80 80 05 00 90 30 00   ..............0.
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+|   3376: 07 1c 88 80 80 80 80 04 03 00 3e 00 00 00 17 01   ..........>.....
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+|   3408: 02 06 07 08 1b 88 80 80 80 80 03 03 00 3c 00 00   .............<..
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+|   3472: 72 65 02 02 03 04 0a 17 88 80 80 80 80 01 03 00   re..............
+|   3488: 34 00 00 00 12 02 30 31 02 06 01 01 04 01 01 32   4.....01.......2
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+|   3552: 72 6d 01 02 04 0b 1b 84 80 80 80 80 10 03 00 3c   rm.............<
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+|   3584: 72 65 73 01 02 05 04 09 1a 84 80 80 80 80 0f 03   res.............
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+|   3616: 68 65 01 06 01 01 03 04 08 1b 84 80 80 80 80 0e   he..............
+|   3632: 03 00 3c 00 00 00 16 04 33 70 72 65 01 02 05 01   ..<.....3pre....
+|   3648: 03 74 61 62 01 06 01 01 05 04 08 1a 84 80 80 80   .tab............
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+|   3680: 02 02 02 74 73 01 06 01 01 04 04 08 1b 84 80 80   ...ts...........
+|   3696: 80 80 0c 03 00 3c 00 00 00 16 03 32 74 68 01 06   .....<.....2th..
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+|   3744: 01 06 01 01 05 02 01 65 01 02 04 04 09 19 84 80   .......e........
+|   3760: 80 80 80 0a 03 00 38 00 00 00 14 03 32 69 6e 01   ......8.....2in.
+|   3776: 06 01 01 02 01 02 70 72 01 02 05 04 09 18 84 80   ......pr........
+|   3792: 80 80 80 09 03 00 36 00 00 00 13 03 32 66 6f 01   ......6.....2fo.
+|   3808: 02 02 02 01 74 01 06 01 01 04 04 07 1b 84 80 80   ....t...........
+|   3824: 80 80 08 03 00 3c 00 00 00 16 02 31 74 01 0a 04   .....<.....1t...
+|   3840: 01 01 03 04 00 03 32 65 61 01 02 03 04 0a 17 84   ......2ea.......
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+|   3872: 06 01 01 02 01 01 71 01 02 05 04 08 18 84 80 80   ......q.........
+|   3888: 80 80 06 03 00 36 00 00 00 13 02 31 65 01 02 03   .....6.....1e...
+|   3904: 01 01 66 01 08 02 01 01 04 04 06 1b 84 80 80 80   ..f.............
+|   3920: 80 05 03 00 3c 00 00 00 16 05 30 74 65 72 6d 01   ....<.....0term.
+|   3936: 02 04 02 02 68 65 01 06 01 01 03 04 09 14 84 80   ....he..........
+|   3952: 80 80 80 04 03 00 2e 00 00 00 10 06 30 74 61 62   ............0tab
+|   3968: 6c 65 01 06 01 01 05 04 15 84 80 80 80 80 03 03   le..............
+|   3984: 00 30 00 00 00 11 02 08 30 70 72 65 73 65 6e 74   .0......0present
+|   4000: 01 02 05 05 1b 84 80 80 80 80 02 03 00 3c 00 00   .............<..
+|   4016: 00 16 04 30 66 74 73 01 06 01 01 04 01 02 69 6e   ...0fts.......in
+|   4032: 01 06 01 01 04 0a 1a 84 80 80 80 80 01 03 00 3a   ...............:
+|   4048: 00 00 00 15 05 30 65 61 63 68 01 02 03 01 03 66   .....0each.....f
+|   4064: 6f 72 01 02 02 04 09 06 01 03 00 12 03 0b 0f 00   or..............
+|   4080: 00 08 8c 80 80 80 80 11 03 00 16 00 00 00 05 04   ................
+| page 3 offset 8192
+|      0: 0a 00 00 00 32 0e 4f 00 0f fa 0f f1 0f e9 0f e1   ....2.O.........
+|     16: 0f d8 0f d1 0f c9 0f c1 0f b9 0f b1 0f a9 0f a0   ................
+|     32: 0f 98 0f 91 0f 87 0f 80 0f 78 0f 71 0f 68 0f 5f   .........x.q.h._
+|     48: 0f 56 0f 4d 0f 41 0f 38 0f 2f 0f 26 0f 1d 0f 13   .V.M.A.8./.&....
+|     64: 0f 0a 0f 01 0e f7 0e ee 0e e6 0e dd 0e d6 0e cd   ................
+|     80: 0e c3 0e ba 0e b0 0e a8 0e 9f 0e 96 0e 8e 0e 85   ................
+|     96: 0e 7c 0e 73 0e 6a 0e 60 0e 58 0e 4f 00 00 00 00   .|.s.j.`.X.O....
+|   3648: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08   ................
+|   3664: 04 01 10 01 03 34 74 20 07 04 01 0e 01 03 34 1e   .....4t ......4.
+|   3680: 09 05 01 12 01 03 33 74 68 1c 08 04 01 10 01 03   ......3th.......
+|   3696: 33 6e 1a 08 04 01 10 01 03 32 77 18 08 04 01 10   3n.......2w.....
+|   3712: 01 03 32 74 16 08 04 01 10 01 03 32 6e 14 07 04   ..2t.......2n...
+|   3728: 01 0e 01 03 32 12 08 04 01 10 01 03 31 74 10 08   ....2.......1t..
+|   3744: 04 01 10 01 03 31 6e 0e 07 04 01 0e 01 03 31 0c   .....1n.......1.
+|   3760: 09 04 01 12 01 03 30 74 68 0a 08 04 01 10 01 03   ......0th.......
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+|   3824: 01 10 01 02 33 72 1e 09 04 01 12 01 02 33 61 72   ....3r.......3ar
+|   3840: 1c 08 04 01 10 01 02 32 74 1a 08 04 01 10 02 02   .......2t.......
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+|   3872: 10 01 02 31 74 14 08 04 01 10 01 02 31 6e 12 08   ...1t.......1n..
+|   3888: 04 01 10 01 02 31 62 10 08 04 01 10 01 02 31 32   .....1b.......12
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+|   3920: 10 01 02 30 74 0a 08 04 01 10 01 02 30 6e 08 08   ...0t.......0n..
+|   3936: 04 01 10 01 02 30 62 06 08 04 01 10 01 02 30 61   .....0b.......0a
+|   3952: 04 06 04 01 0c 01 02 02 07 04 09 10 01 34 74 22   .............4t.
+|   3968: 06 04 09 0e 01 34 20 08 04 09 12 01 33 74 65 1e   .....4 .....3te.
+|   3984: 07 04 09 10 01 33 70 1c 07 04 09 10 01 33 66 1a   .....3p......3f.
+|   4000: 08 04 09 12 01 32 74 68 18 07 04 09 10 01 32 74   .....2th......2t
+|   4016: 16 07 04 09 10 01 32 69 14 07 04 09 10 01 32 66   ......2i......2f
+|   4032: 12 07 04 09 10 01 31 74 10 07 04 09 10 01 31 69   ......1t......1i
+|   4048: 0e 06 04 09 0e 01 31 0c 08 04 09 12 01 30 74 65   ......1......0te
+|   4064: 0a 07 04 09 10 01 30 74 08 07 04 09 10 01 30 70   ......0t......0p
+|   4080: 06 08 04 09 12 01 30 66 74 04 05 04 09 0c 01 02   ......0ft.......
+| page 4 offset 12288
+|      0: 0d 00 00 00 03 0f eb 00 0f f9 0f f2 0f eb 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 05 03 03 00 10   ................
+|   4080: 03 05 05 02 03 00 10 04 06 05 01 03 00 10 04 04   ................
+| page 5 offset 16384
+|      0: 0a 00 00 00 02 0f eb 00 0f eb 0f f4 00 00 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 08 03 15 01 70   ...............p
+|   4080: 67 73 7a 18 0b 03 1b 01 76 65 72 73 69 6f 6e 04   gsz.....version.
+| page 6 offset 20480
+|      0: 0d 00 00 00 03 0f f2 00 0f fc 0f f7 0f f2 00 00   ................
+|   4080: 00 00 03 03 02 01 03 03 02 02 01 02 02 01 02 09   ................
+| end 89028ffd2c29b679e250.db
+}]} {}
+
+do_catchsql_test 43.1 {
+  INSERT INTO t1(t1) VALUES('optimize');
+} {/*malformed database schema*/}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 44.1 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a,b unindexed,c,tokenize="porter ascii");
+  REPLACE INTO t1_data VALUES(1,X'03090009');
+  REPLACE INTO t1_data VALUES(10,X'000000000103030003010101020101030101');
+  INSERT INTO t1_data VALUES(137438953473,X'0000002e023061011202010162010203010163010204010167010601020201016801050102030101690106010204040606060808');
+  INSERT INTO t1_data VALUES(274877906945,X'0000001f02306702080201020201016802080301020301016a420804010204040909');
+  INSERT INTO t1_data VALUES(412316860417,X'0000002e023061030202010162030203010163030204010167030601020201016803060102030101690306010204040606060808');
+  INSERT INTO t1_idx VALUES(1,X'',2);
+  INSERT INTO t1_idx VALUES(2,X'',2);
+  INSERT INTO t1_idx VALUES(3,X'',2);
+  INSERT INTO t1_content VALUES(1,'a b c','d e f','g h i');
+  INSERT INTO t1_content VALUES(2,'g h i','a b c','g h i');
+  INSERT INTO t1_content VALUES(3,'a b c','g h i','g h i');
+  INSERT INTO t1_docsize VALUES(1,X'030003');
+  INSERT INTO t1_docsize VALUES(2,X'030003');
+  INSERT INTO t1_docsize VALUES(3,X'030003');
+} {}
+
+do_catchsql_test 44.2 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+} {1 {database disk image is malformed}}
+
+do_catchsql_test 44.3 {
+  SELECT snippet(t1, -1, '.', '..', '', 2 ) FROM t1('g h') ORDER BY rank; 
+} {0 {{.g.. .h..} {.g.. h} {.g.. .h..}}}
+
+#--------------------------------------------------------------------------
+reset_db
+do_test 45.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 24576 pagesize 4096 filename crash-0b162c9e69b999.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 06   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 06 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 00 00 00 06 0e 0f 00 0f aa 0f 53   ...............S
+|    112: 0e e8 0e 8b 0e 33 0e 0f 00 00 00 00 00 00 00 00   .....3..........
+|   3584: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 22   ................
+|   3600: 06 06 17 11 11 01 31 74 61 62 6c 65 62 62 62 62   ......1tablebbbb
+|   3616: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 62 62   .CREATE TABLE bb
+|   3632: 28 61 29 56 05 06 17 1f 1f 01 7d 74 61 52 6c 65   (a)V.......taRle
+|   3648: 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63 6f 6e 66   t1_configt1_conf
+|   3664: 69 67 05 43 52 45 41 54 45 20 54 41 42 4c 45 20   ig.CREATE TABLE 
+|   3680: 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b 20 50 52   't1_config'(k PR
+|   3696: 49 4d 41 52 59 20 4b 45 59 2c 20 76 29 20 57 49   IMARY KEY, v) WI
+|   3712: 54 48 4f 55 54 20 52 4f 57 49 44 5b 04 07 17 21   THOUT ROWID[...!
+|   3728: 21 01 81 01 74 61 62 6c 65 74 31 5f 64 6f 73 73   !...tablet1_doss
+|   3744: 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65 04 43 52   izet1_docsize.CR
+|   3760: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 64   EATE TABLE 't1_d
+|   3776: 6f 63 73 69 7a 65 27 28 69 64 20 49 4e 54 45 47   ocsize'(id INTEG
+|   3792: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
+|   3808: 73 7a 20 42 4c 4f 42 29 69 03 07 17 19 19 01 81   sz BLOB)i.......
+|   3824: 2d 74 61 62 6c 65 74 31 5f 69 64 78 74 31 5f 69   -tablet1_idxt1_i
+|   3840: 64 78 03 43 52 45 41 54 45 20 54 41 42 4c 45 20   dx.CREATE TABLE 
+|   3856: 27 74 31 5f 69 64 78 27 28 73 65 67 69 64 2c 20   't1_idx'(segid, 
+|   3872: 74 65 72 6d 2c 20 70 67 6e 6f 2c 20 50 52 49 4d   term, pgno, PRIM
+|   3888: 41 52 59 20 4b 45 59 28 73 65 67 69 64 2c 20 74   ARY KEY(segid, t
+|   3904: 65 72 6d 29 29 20 57 49 54 48 4f 55 54 20 52 4f   erm)) WITHOUT RO
+|   3920: 57 49 44 55 02 07 17 1b 1b 01 81 01 74 61 62 6c   WIDU........tabl
+|   3936: 65 74 31 5f 64 61 74 61 74 31 5f 64 61 74 61 02   et1_datat1_data.
+|   3952: 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74 31   CREATE TABLE 't1
+|   3968: 5f 64 61 74 61 27 28 69 64 20 49 4e 54 45 47 45   _data'(id INTEGE
+|   3984: 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 62   R PRIMARY KEY, b
+|   4000: 6c 6f 63 6b 20 42 4c 4f 42 29 54 01 07 17 11 11   lock BLOB)T.....
+|   4016: 08 81 15 74 61 62 6c 65 74 31 74 31 43 52 45 41   ...tablet1t1CREA
+|   4032: 54 45 20 56 49 52 54 55 41 4c 20 54 41 42 4c 45   TE VIRTUAL TABLE
+|   4048: 20 74 31 20 55 53 49 4e 47 20 66 74 73 35 28 61    t1 USING fts5(a
+|   4064: 2c 62 2c 70 72 65 66 69 78 3d 22 31 2c 32 2c 33   ,b,prefix=.1,2,3
+|   4080: 2c 34 22 2c 20 63 6f 6e 74 65 6e 74 3d 22 22 29   ,4., content=..)
+| page 2 offset 4096
+|      0: 0d 0b 6a 00 37 09 4c 02 0f e7 09 4c 0f c6 0f a4   ..j.7.L....L....
+|     16: 0f 88 0f 6d 0f 4b 0f 2c 0f 0e 0e ec 0e cd 0e ad   ...m.K.,........
+|     32: 0e 8e 0e 6c 0e 4b 0e 29 0e 08 0d e6 0d c4 0d b5   ...l.K.)........
+|     48: 0d 97 0d 76 0d 54 0d 31 0d 15 0c f3 0c d3 0c b5   ...v.T.1........
+|     64: 0c 95 0c 73 0c 54 0c 32 0c 10 0b ee 0b cc 0b b0   ...s.T.2........
+|     80: 0b 8d 0b 7e 0b 48 0b 2e 0b 0b 0a ef 0a cc 0a ad   ...~.H..........
+|     96: 0a 8c 0a 6d 0a 4d 0a 2b 0a 0c 09 ec 09 ca 09 a8   ...m.M.+........
+|    112: 09 86 09 63 0f f1 00 00 00 00 00 00 00 00 00 00   ...c............
+|   2368: 00 00 00 00 00 00 00 00 00 00 00 00 15 0a 03 00   ................
+|   2384: 30 00 00 00 01 01 03 35 00 03 01 01 12 02 01 12   0......5........
+|   2400: 03 01 11 1c 8c 80 80 80 80 10 03 00 3e 00 00 00   ............>...
+|   2416: 17 01 05 05 34 74 61 62 6c 03 02 03 01 04 77 68   ....4tabl.....wh
+|   2432: 65 72 03 02 06 09 1b 8c 80 80 80 80 0f 03 00 3c   er.............<
+|   2448: 00 00 00 16 05 34 66 75 73 34 03 02 02 01 04 6e   .....4fus4.....n
+|   2464: 75 6d 62 03 06 01 04 09 1b 8c 80 80 80 80 0e 03   umb.............
+|   2480: 00 3c 00 00 00 16 04 33 74 68 65 03 06 01 01 04   .<.....3the.....
+|   2496: 01 03 77 68 65 03 02 04 04 0a 1b 8c 80 80 80 80   ..whe...........
+|   2512: 0d 03 00 3c 00 00 00 16 04 33 6e 74 6d 03 06 01   ...<.....3ntm...
+|   2528: 01 05 01 03 74 61 62 05 62 03 04 0a 19 8c 80 80   ....tab.b.......
+|   2544: 80 80 0c 03 00 38 00 00 00 14 03 32 77 68 03 02   .....8.....2wh..
+|   2560: 04 00 04 33 66 74 73 03 02 02 04 07 18 8c 80 80   ...3fts.........
+|   2576: 80 80 0b 03 00 36 00 00 00 13 03 32 74 61 03 02   .....6.....2ta..
+|   2592: 03 02 01 68 03 06 01 01 04 04 07 1b 8c 80 80 80   ...h............
+|   2608: 80 0a 03 00 3c 00 00 00 16 03 32 6e 75 03 06 01   ....<.....2nu...
+|   2624: 01 05 01 02 6f 66 03 06 01 01 06 04 09 19 8c 80   ....of..........
+|   2640: 80 80 80 09 03 00 38 00 00 00 14 03 32 66 74 03   ......8.....2ft.
+|   2656: 02 02 01 02 69 73 03 06 01 01 03 04 07 18 8c 80   ....is..........
+|   2672: 80 80 80 08 03 00 36 00 00 00 13 02 31 74 03 08   ......6.....1t..
+|   2688: 03 01 01 04 01 01 77 03 02 04 04 09 1a 8c 80 80   ......w.........
+|   2704: 80 80 07 03 00 3a ff 00 00 15 02 31 6e 03 08 01   .....:.....1n...
+|   2720: 01 02 05 01 01 6f 03 06 01 01 06 04 09 18 8c 80   .....o..........
+|   2736: 80 80 80 06 03 00 36 00 00 00 13 04 02 31 66 03   ......6......1f.
+|   2752: 02 02 01 01 69 03 06 01 01 03 05 06 1c 8c 80 80   ....i...........
+|   2768: 80 80 05 03 00 3e 00 00 00 17 04 30 74 68 65 03   .....>.....0the.
+|   2784: 06 01 01 04 01 05 77 68 65 72 65 03 02 04 0a 15   ......where.....
+|   2800: 8c 80 80 80 80 04 03 00 30 00 00 00 11 01 01 06   ........0.......
+|   2816: 06 30 74 61 62 6c 65 03 02 03 07 1c 8c 80 80 80   .0table.........
+|   2832: 80 03 03 00 3e 00 00 00 17 07 30 6e 75 6d 62 65   ....>.....0numbe
+|   2848: 72 03 06 01 01 05 01 02 6f 66 03 06 04 0d 13 8c   r.......of......
+|   2864: 80 80 80 80 02 03 00 2c 00 00 00 0f 01 01 03 02   .......,........
+|   2880: 30 6e 03 06 01 01 02 07 1b 8c 80 80 80 80 01 03   0n..............
+|   2896: 00 3c 00 00 00 16 08 30 66 74 73 34 61 75 78 03   .<.....0fts4aux.
+|   2912: 02 02 01 02 69 73 03 06 04 0c 00 00 00 14 2a 00   ....is........*.
+|   2928: 00 00 01 01 02 24 00 02 01 01 12 02 01 12 08 88   .....$..........
+|   2944: 80 80 80 80 11 03 00 16 00 00 01 05 02 1c 88 80   ................
+|   2960: 80 80 80 11 03 00 3e 00 00 00 17 05 34 72 6f 77   ......>.....4row
+|   2976: 73 02 06 01 01 05 01 04 74 68 65 72 02 02 04 0b   s.......ther....
+|   2992: 15 88 80 80 80 80 10 03 00 30 00 00 00 11 02 01   .........0......
+|   3008: 01 07 05 34 62 65 74 77 02 02 04 08 1b 88 80 80   ...4betw........
+|   3024: 80 80 0f 03 00 3c 00 00 00 16 04 04 33 72 6f 77   .....<......3row
+|   3040: 02 06 01 01 05 01 03 74 68 65 02 08 05 0a 1b 88   .......the......
+|   3056: 80 80 80 80 0e 03 00 3c 00 00 00 16 02 01 02 04   .......<........
+|   3072: 33 61 72 65 02 02 03 01 03 62 65 74 02 02 07 08   3are.....bet....
+|   3088: 1b 88 80 80 80 80 0d 03 00 3c 00 00 00 16 03 32   .........<.....2
+|   3104: 74 68 02 08 02 01 01 07 00 04 33 61 6e 64 02 06   th........3and..
+|   3120: 04 0a 1b 88 80 80 80 80 0c 03 00 3c 00 00 00 16   ...........<....
+|   3136: 03 32 69 6e 02 06 01 01 06 01 02 72 6f 02 06 01   .2in.......ro...
+|   3152: 01 05 04 09 18 88 80 80 80 80 0b 03 00 36 00 00   .............6..
+|   3168: 00 13 02 03 32 61 72 02 02 03 01 02 62 65 02 02   ....2ar.....be..
+|   3184: 04 05 07 1b 88 80 80 80 80 0a 03 00 3c 00 00 00   ............<...
+|   3200: 16 02 31 74 02 08 02 01 01 07 00 03 32 61 6e 02   ..1t........2an.
+|   3216: 06 01 01 04 09 19 88 80 80 80 80 09 03 00 38 00   ..............8.
+|   3232: 00 00 14 02 31 6e 02 06 01 01 03 01 01 72 02 06   ....1n.......r..
+|   3248: 01 01 05 04 08 17 88 80 80 80 80 08 03 00 34 00   ..............4.
+|   3264: 00 00 12 02 31 62 02 02 04 01 01 69 02 06 01 01   ....1b.....i....
+|   3280: 06 04 06 19 88 80 80 80 80 07 03 00 38 00 00 00   ............8...
+|   3296: 14 04 02 31 32 02 02 05 01 01 61 02 08 03 01 01   ...12.....a.....
+|   3312: 02 05 06 1b 88 80 80 80 80 06 03 00 3c 00 00 00   ............<...
+|   3328: 16 06 30 74 68 65 72 65 02 02 02 00 02 31 31 02   ..0there.....11.
+|   3344: 06 01 01 04 0a 15 88 80 80 80 80 05 03 00 30 00   ..............0.
+|   3360: 00 00 11 01 01 05 04 30 74 68 65 02 06 01 01 07   .......0the.....
+|   3376: 07 1c 88 80 80 80 80 04 03 00 3e 00 00 00 17 01   ..........>.....
+|   3392: 01 06 02 30 6e 02 06 01 01 03 01 04 72 6f 77 73   ...0n.......rows
+|   3408: 02 06 07 08 1b 88 80 80 80 80 03 03 00 3c 00 00   .............<..
+|   3424: 00 16 08 30 62 65 74 77 65 65 6e 02 02 04 01 02   ...0between.....
+|   3440: 69 6e 02 06 04 0c 1a 88 80 80 80 80 02 03 00 3a   in.............:
+|   3456: 00 00 00 15 04 30 61 6e 64 02 06 01 01 02 02 02   .....0and.......
+|   3472: 72 65 02 02 03 04 0a 17 88 80 80 80 80 01 03 00   re..............
+|   3488: 34 00 00 00 12 02 30 31 02 06 01 01 04 01 01 32   4.....01.......2
+|   3504: 02 02 06 04 08 08 84 80 80 80 80 12 03 00 16 00   ................
+|   3520: 00 00 05 04 1b 84 80 80 80 80 11 03 00 3c 00 00   .............<..
+|   3536: 00 16 05 34 74 61 62 6c 01 06 01 01 05 02 03 65   ...4tabl.......e
+|   3552: 72 6d 01 02 04 0b 1b 84 80 80 80 80 10 03 00 3c   rm.............<
+|   3568: 00 00 00 16 05 34 65 61 63 68 01 02 03 01 04 70   .....4each.....p
+|   3584: 72 65 73 01 02 05 04 09 1a 84 80 80 80 80 0f 03   res.............
+|   3600: 00 3a 00 00 00 15 04 33 74 65 72 01 02 04 02 02   .:.....3ter.....
+|   3616: 68 65 01 06 01 01 03 04 08 1b 84 80 80 80 80 0e   he..............
+|   3632: 03 00 3c 00 00 00 16 04 33 70 72 65 01 02 05 01   ..<.....3pre....
+|   3648: 03 74 61 62 01 06 01 01 05 04 08 1a 84 80 80 80   .tab............
+|   3664: 80 0d 03 00 3a 00 00 00 15 04 33 66 6f 72 01 02   ....:.....3for..
+|   3680: 02 02 02 74 73 01 06 01 01 04 04 08 1b 84 80 80   ...ts...........
+|   3696: 80 80 0c 03 00 3c 00 00 00 16 03 32 74 68 01 06   .....<.....2th..
+|   3712: 01 01 03 00 04 33 65 61 63 01 02 03 04 09 18 84   .....3eac.......
+|   3728: 80 80 80 80 0b 03 00 36 00 00 00 13 03 32 74 61   .......6.....2ta
+|   3744: 01 06 01 01 05 02 01 65 01 02 04 04 09 19 84 80   .......e........
+|   3760: 80 80 80 0a 03 00 38 00 00 00 14 03 32 69 6e 01   ......8.....2in.
+|   3776: 06 01 01 02 01 02 70 72 01 02 05 04 09 18 84 80   ......pr........
+|   3792: 80 80 80 09 03 00 36 00 00 00 13 03 32 66 6f 01   ......6.....2fo.
+|   3808: 02 02 02 01 74 01 06 01 01 04 04 07 1b 84 80 80   ....t...........
+|   3824: 80 80 08 03 00 3c 00 00 00 16 02 31 74 01 0a 04   .....<.....1t...
+|   3840: 01 01 03 04 00 03 32 65 61 01 02 03 04 0a 17 84   ......2ea.......
+|   3856: 80 80 80 80 07 03 00 34 00 00 00 12 02 31 69 01   .......4.....1i.
+|   3872: 06 01 01 02 01 01 70 01 02 05 04 08 18 84 80 80   ......p.........
+|   3888: 80 80 06 03 00 36 00 00 00 13 02 31 65 01 02 03   .....6.....1e...
+|   3904: 01 01 66 01 08 02 01 01 04 04 06 1b 84 80 80 80   ..f.............
+|   3920: 80 05 03 00 3c 00 00 00 16 05 30 74 65 72 6d 01   ....<.....0term.
+|   3936: 02 04 02 02 68 65 01 06 01 01 03 04 09 14 84 80   ....he..........
+|   3952: 80 80 80 04 03 00 2e 00 00 00 10 06 30 74 61 62   ............0tab
+|   3968: 6c 65 01 06 00 01 05 04 15 84 80 80 80 80 03 03   le..............
+|   3984: 00 30 00 00 00 11 02 08 30 70 72 65 73 65 6e 74   .0......0present
+|   4000: 01 02 05 05 1b 84 80 80 80 80 02 03 00 3c 00 00   .............<..
+|   4016: 00 16 04 30 66 74 73 01 06 01 01 04 01 02 69 6e   ...0fts.......in
+|   4032: 01 06 01 01 04 0a 1a 84 80 80 80 80 01 03 00 3a   ...............:
+|   4048: 00 00 00 15 05 30 65 61 63 68 01 02 03 01 03 66   .....0each.....f
+|   4064: 6f 72 01 02 02 04 09 06 01 03 00 12 03 0b 0f 00   or..............
+|   4080: 00 08 8c 80 80 80 80 11 03 00 16 00 00 00 05 04   ................
+| page 3 offset 8192
+|      0: 0a 00 00 00 32 0e 4f 00 0f fa 10 f1 0f e9 0f e1   ....2.O.........
+|     16: 0f d8 0f d1 0f c9 0f c1 0f b9 0f b1 0f a9 0f a0   ................
+|     32: 0f 98 0f 90 0f 87 0f 80 0f 78 0f 71 0f 68 0f 5f   .........x.q.h._
+|     48: bd 56 0f 4d 0f 41 0f 38 0f 2f 0f 26 0f 1d 0f 13   .V.M.A.8./.&....
+|     64: 0f 0a 0f 01 0e f7 0e ee 0e e6 0e dd 0e d6 0e cd   ................
+|     80: 0e c3 0e ba 0e b0 0e a8 0e 9f 0e 96 0e 8e 0e 85   ................
+|     96: 0e 7c 0e 73 0e 6a 0e 60 0e 58 0e 4f 00 00 00 00   .|.s.j.`.X.O....
+|   3648: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08   ................
+|   3664: 04 01 10 2f 03 34 74 20 07 04 01 0e 01 03 34 1e   .../.4t ......4.
+|   3680: 09 04 01 12 01 03 33 74 68 1c 08 04 01 10 01 03   ......3th.......
+|   3696: 33 6e 1a 08 04 01 10 01 03 32 77 18 08 04 01 10   3n.......2w.....
+|   3712: 01 03 32 74 16 08 04 01 10 01 03 32 6e 14 07 04   ..2t.......2n...
+|   3728: 01 0e 01 03 32 12 08 04 01 10 01 03 31 74 10 08   ....2.......1t..
+|   3744: 04 01 10 01 03 31 6e 0e 07 04 01 0e 02 03 31 0c   .....1n.......1.
+|   3760: 09 04 01 12 01 03 30 74 68 0a 08 04 01 10 01 03   ......0th.......
+|   3776: 30 74 08 09 04 01 12 01 03 30 6e 75 06 08 04 01   0t.......0nu....
+|   3792: 10 01 03 30 6e 04 06 04 01 0c 01 05 52 08 04 01   ...0n.......R...
+|   3808: 10 01 02 34 72 22 07 04 01 0e 01 02 34 20 08 04   ...4r.......4 ..
+|   3824: 01 10 01 02 33 72 1e 09 04 01 12 01 02 33 61 72   ....3r.......3ar
+|   3840: 1c 08 04 01 10 01 02 32 74 1a 08 04 01 10 b3 02   .......2t.......
+|   3856: 32 69 18 09 04 01 12 01 02 32 61 72 16 08 04 01   2i.......2ar....
+|   3872: 10 01 02 31 74 14 08 04 01 10 01 02 31 6e 12 08   ...1t.......1n..
+|   3888: 04 01 10 01 02 31 62 10 08 04 01 10 01 02 31 32   .....1b.......12
+|   3904: 0e 0b 04 01 16 01 02 30 74 68 65 72 0c 08 04 01   .......0ther....
+|   3920: 10 01 02 30 74 0a 08 04 01 10 01 02 30 6e 08 08   ...0t.......0n..
+|   3936: 04 01 10 01 02 30 62 06 08 04 01 10 01 02 30 61   .....0b.......0a
+|   3952: 04 06 04 01 0c 01 02 02 07 04 09 10 01 34 74 22   .............4t.
+|   3968: 06 04 09 0e 01 34 20 08 04 09 12 01 33 74 65 1e   .....4 .....3te.
+|   3984: 07 04 09 10 01 33 70 1c 07 04 09 10 01 33 66 1a   .....3p......3f.
+|   4000: 08 04 09 12 01 32 74 68 18 07 04 09 10 01 32 74   .....2th......2t
+|   4016: 16 07 04 09 10 01 32 69 14 07 04 09 10 01 32 66   ......2i......2f
+|   4032: 12 07 04 09 10 01 31 74 10 07 04 09 10 01 31 69   ......1t......1i
+|   4048: 0e 06 04 09 0e 01 31 0c 08 04 09 12 01 30 74 65   ......1......0te
+|   4064: 0a 07 04 09 10 01 30 74 08 07 04 09 10 01 30 70   ......0t......0p
+|   4080: 06 08 04 09 12 01 30 66 74 04 05 04 09 0c 01 02   ......0ft.......
+| page 4 offset 12288
+|      0: 0d 00 00 00 03 0f eb 00 0f f9 0f f2 0f eb 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 05 03 03 00 10   ................
+|   4080: 03 05 05 02 03 00 10 04 06 05 01 03 00 10 04 04   ................
+| page 5 offset 16384
+|      0: 0a 00 00 00 02 0f eb 00 0f eb 0f f4 00 00 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 08 03 15 01 70   ...............p
+|   4080: 67 73 7a 18 0b 03 1b 01 76 65 72 73 69 6f 6e 04   gsz.....version.
+| page 6 offset 20480
+|      0: 0d 00 00 00 03 0f f2 00 0f fc 0f f7 0f f2 00 00   ................
+|   4080: 00 00 03 03 02 01 03 03 02 02 01 02 02 01 02 09   ................
+}]} {}
+
+do_catchsql_test 45.2 {
+  INSERT INTO t1(t1, rank) VALUES('merge', 5);
+  INSERT INTO t1(t1, rank) VALUES('merge', 5);
+  INSERT INTO t1(t1, rank) VALUES('merge', 5);
+  INSERT INTO t1(t1, rank) VALUES('merge', 5);
+  INSERT INTO t1(t1, rank) VALUES('merge', 5);
+  INSERT INTO t1(t1, rank) VALUES('merge', 5);
+  INSERT INTO t1(t1, rank) VALUES('merge', 5);
+  INSERT INTO t1(t1, rank) VALUES('merge', 5);
+  INSERT INTO t1(t1, rank) VALUES('merge', 5);
+  INSERT INTO t1(t1, rank) VALUES('merge', 5);
+  INSERT INTO t1(t1, rank) VALUES('merge', 5);
+  INSERT INTO t1(t1, rank) VALUES('merge', 5);
+  INSERT INTO t1(t1, rank) VALUES('merge', 5);
+  INSERT INTO t1(t1, rank) VALUES('merge', 5);
+  INSERT INTO t1(t1, rank) VALUES('merge', 5);
+  INSERT INTO t1(t1, rank) VALUES('merge', 5);
+} {/*malformed database schema*/}
+
+#--------------------------------------------------------------------------
+reset_db
+do_test 46.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 32768 pagesize 4096 filename crash-1ee8bd451dd1ad.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 08   .....@  ........
+|     32: 00 00 00 02 00 00 00 01 00 00 00 09 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 0f c7 00 07 0d 92 00 0f 8d 0f 36   ...............6
+|    112: 0e cb 0e 6b 0e 0e 0d b6 0d 92 0d 92 00 00 00 00   ...k............
+|   3472: 00 00 22 08 06 17 11 11 01 31 74 61 62 6c 65 74   .........1tablet
+|   3488: 32 74 32 08 43 52 45 41 54 45 20 54 41 42 4c 45   2t2.CREATE TABLE
+|   3504: 20 74 32 28 78 29 56 07 06 17 1f 1f 01 7d 74 60    t2(x)V.......t`
+|   3520: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   blet1_configt1_c
+|   3536: 6f 6e 66 69 67 07 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
+|   3552: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
+|   3568: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
+|   3584: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 06    WITHOUT ROWID[.
+|   3600: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64   ..!!...tablet1_d
+|   3616: 6f 63 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65   ocsizet1_docsize
+|   3632: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
+|   3648: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
+|   3664: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
+|   3680: 59 2c 20 73 7a 20 42 4c 4f 42 29 5e 05 07 17 21   Y, sz BLOB)^...!
+|   3696: 21 01 81 07 74 61 62 6c 65 74 31 5f 63 6f 6e 74   !...tablet1_cont
+|   3712: 65 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 05 43 52   entt1_content.CR
+|   3728: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63   EATE TABLE 't1_c
+|   3744: 6f 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47   ontent'(id INTEG
+|   3760: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
+|   3776: 63 30 2c 20 63 31 2c 20 63 32 29 69 04 07 17 19   c0, c1, c2)i....
+|   3792: 19 01 81 2d 74 61 62 6c 65 74 31 5f 69 64 78 74   ...-tablet1_idxt
+|   3808: 31 5f 69 64 78 04 43 52 45 41 54 45 20 54 41 42   1_idx.CREATE TAB
+|   3824: 4c 45 20 27 74 31 5f 69 64 78 27 28 73 65 67 69   LE 't1_idx'(segi
+|   3840: 64 2c 20 74 65 72 6d 2c 20 70 67 6e 6f 2c 20 50   d, term, pgno, P
+|   3856: 52 49 4d 41 52 59 20 4b 45 59 28 73 65 67 69 64   RIMARY KEY(segid
+|   3872: 2c 20 74 65 72 6d 29 29 20 57 49 54 48 4f 55 54   , term)) WITHOUT
+|   3888: 20 52 4f 57 49 44 55 03 07 17 1b 1b 01 81 01 74    ROWIDU........t
+|   3904: 61 62 6c 65 74 31 5f 64 61 74 61 74 31 5f 64 61   ablet1_datat1_da
+|   3920: 74 61 03 43 52 45 41 54 45 20 54 41 42 4c 45 20   ta.CREATE TABLE 
+|   3936: 27 74 31 5f 64 61 74 61 27 28 69 64 20 49 4e 54   't1_data'(id INT
+|   3952: 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59   EGER PRIMARY KEY
+|   3968: 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42 29 38 02 06   , block BLOB)8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 35   LE t1 USING fts5
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 39 00 00 00 00 00   (a,b,c)...9.....
+| page 3 offset 8192
+|      0: 0d 00 00 00 03 0c 94 00 0f e6 0f ef 0c 94 00 00   ................
+|   3216: 00 00 00 00 86 4a 84 80 80 80 80 01 04 00 8d 18   .....J..........
+|   3232: 00 00 03 2b 02 30 30 01 02 06 01 02 06 01 02 06   ...+.00.........
+|   3248: 1f 02 03 01 02 03 01 02 03 01 08 32 30 31 36 30   ...........20160
+|   3264: 36 30 39 01 02 07 01 02 07 01 02 07 01 01 34 01   609...........4.
+|   3280: 02 05 01 02 05 01 02 05 01 01 35 01 02 04 01 02   ..........5.....
+|   3296: 04 01 02 04 02 07 30 30 30 30 30 30 30 1c 02 3d   ......0000000..=
+|   3312: 01 02 04 01 02 04 01 06 62 69 6e 61 72 79 03 06   ........binary..
+|   3328: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3344: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3360: 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02   ................
+|   3376: 03 06 01 02 02 03 06 01 02 02 01 08 63 6f 6d 70   ............comp
+|   3392: 69 6c 65 72 01 02 02 01 02 02 01 02 02 01 06 64   iler...........d
+|   3408: 62 73 74 61 74 07 02 03 01 02 03 01 02 03 02 04   bstat...........
+|   3424: 65 62 75 67 04 02 02 01 02 02 01 02 02 01 06 65   ebug...........e
+|   3440: 6e 61 62 6c 65 07 02 02 01 02 02 01 02 02 01 02   nable...........
+|   3456: 02 01 02 02 01 02 02 01 02 02 01 02 02 01 02 02   ................
+|   3472: 01 02 02 01 02 02 01 02 02 01 02 02 01 02 02 01   ................
+|   3488: 02 02 01 02 02 01 02 02 01 02 02 01 02 02 01 02   ................
+|   3504: 02 01 02 02 02 08 78 74 65 6e 73 69 6f 6e 1f 02   ......xtension..
+|   3520: 04 01 02 04 01 02 04 01 04 66 74 73 34 0a 02 03   .........fts4...
+|   3536: 01 02 03 01 02 03 04 01 35 0d 02 03 01 02 03 01   ........5.......
+|   3552: 02 03 01 03 67 63 63 01 02 03 01 02 03 01 02 03   ....gcc.........
+|   3568: 02 06 65 6f 70 6f 6c 79 10 02 03 01 02 03 01 02   ..eopoly........
+|   3584: 03 01 05 6a 73 6f 6e 31 13 02 03 01 02 03 01 02   ...json1........
+|   3600: 03 01 04 6c 6f 61 64 1f 02 03 01 02 03 01 02 03   ...load.........
+|   3616: 01 03 6d 61 78 1c 02 02 01 02 02 01 02 02 02 05   ..max...........
+|   3632: 65 6d 6f 72 79 1c 02 03 01 02 03 01 02 03 04 04   emory...........
+|   3648: 73 79 73 35 16 02 03 01 02 03 01 02 03 01 06 6e   sys5...........n
+|   3664: 6f 63 61 73 65 02 06 01 02 02 03 06 01 02 02 03   ocase...........
+|   3680: 06 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06   ................
+|   3696: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3712: 02 02 03 07 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3728: 02 01 04 6f 6d 69 74 1f 02 02 01 02 02 01 02 02   ...omit.........
+|   3744: 01 05 72 74 72 65 65 19 02 03 01 02 03 01 02 03   ..rtree.........
+|   3760: 04 02 69 6d 01 06 01 02 02 03 06 01 02 02 03 06   ..im............
+|   3776: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3792: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3808: 02 03 06 01 02 02 03 06 06 e2 02 03 06 01 02 02   ................
+|   3824: 01 0a 74 68 72 65 61 64 73 61 66 65 22 02 02 01   ..threadsafe....
+|   3840: 02 02 01 02 02 01 04 76 74 61 62 07 02 04 01 02   .......vtab.....
+|   3856: 04 01 02 04 01 01 78 01 06 01 01 02 01 06 01 01   ......x.........
+|   3872: 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02   ................
+|   3888: 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01   ................
+|   3904: 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06   ................
+|   3920: 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01   ................
+|   3936: 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01   ................
+|   3952: 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02   ................
+|   3968: 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01   ................
+|   3984: 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06   ................
+|   4000: 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01   ................
+|   4016: 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01   ................
+|   4032: 02 01 06 01 01 02 01 06 01 01 02 04 15 13 0c 0c   ................
+|   4048: 12 44 13 11 0f 47 13 0f 0c 0e 11 10 0f 0e 10 0f   .D...G..........
+|   4064: 44 0f 10 40 15 0f 07 01 03 00 14 24 5a 24 24 0f   D..@.......$Z$$.
+|   4080: 0a 03 00 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 4 offset 12288
+|      0: 0a 00 00 00 01 0f fa 00 0f fa 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
+| page 5 offset 16384
+|      0: 0d 00 00 00 24 0c 0a 00 0f d8 0f af 0f 86 0f 74   ....$..........t
+|     16: 0f 61 0f 4e 0f 2f 0f 0f 0e ef 0e d7 0e be 0e a5   .a.N./..........
+|     32: 0e 8d 0e 74 0e 5b 0e 40 0e 24 0e 08 0d ef 0d d5   ...t.[.@.$......
+|     48: 0d bb 0d a0 0d 84 0d 68 0d 4f 0d 35 0d 1b 0c fb   .......h.O.5....
+|     64: 0c da 0c b9 0c 99 0c 78 0c 57 0c 3e 0c 24 0c 0a   .......x.W.>.$..
+|   3072: 00 00 00 00 00 00 00 00 00 00 18 24 05 00 25 0f   ...........$..%.
+|   3088: 19 54 48 52 45 41 44 53 41 46 45 3d 30 58 42 49   .THREADSAFE=0XBI
+|   3104: 4e 41 52 59 18 23 05 00 25 0f 19 54 48 52 45 41   NARY.#..%..THREA
+|   3120: 44 53 31 46 45 3d 30 58 4e 4f 43 41 53 45 17 22   DS1FE=0XNOCASE..
+|   3136: 05 00 25 0f 17 54 48 52 45 41 44 53 41 46 45 3d   ..%..THREADSAFE=
+|   3152: 30 58 52 54 52 49 4d 1f 21 05 00 33 0f 19 4f 4d   0XRTRIM.!..3..OM
+|   3168: 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49 4f   IT LOAD EXTENSIO
+|   3184: 4e 58 42 49 4e 41 52 59 1f 20 05 00 33 0f 19 4f   NXBINARY. ..3..O
+|   3200: 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49   MIT LOAD EXTENSI
+|   3216: 4f 4e 58 4e 4f 43 41 53 45 1e 1f 05 00 33 0f 17   ONXNOCASE....3..
+|   3232: 4f 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53   OMIT LOAD EXTENS
+|   3248: 49 4f 4e 58 52 54 52 49 4d 1f 1e 05 00 33 0f 19   IONXRTRIM....3..
+|   3264: 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30 30   MAX MEMORY=50000
+|   3280: 30 30 30 58 42 49 4e 41 52 59 1f 1d 05 00 33 0f   000XBINARY....3.
+|   3296: 19 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30   .MAX MEMORY=5000
+|   3312: 30 30 30 30 58 4e 4f 43 41 53 45 1e 1c 05 00 33   0000XNOCASE....3
+|   3328: 0f 17 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30   ..MAX MEMORY=500
+|   3344: 30 30 30 30 30 58 52 54 52 49 4d 18 1b 05 00 25   00000XRTRIM....%
+|   3360: 0f 19 45 4e 41 42 4c 45 20 52 54 52 45 45 58 42   ..ENABLE RTREEXB
+|   3376: 49 4e 41 52 59 18 1a 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3392: 4c 45 20 52 54 52 45 45 58 4e 4f 43 41 53 45 17   LE RTREEXNOCASE.
+|   3408: 19 05 00 25 0f 17 45 4e 40 42 4c 45 20 52 54 52   ...%..EN@BLE RTR
+|   3424: 45 45 58 52 54 52 49 4d 1a 18 05 00 29 0f 19 45   EEXRTRIM....)..E
+|   3440: 4e 41 42 4c 45 20 4d 45 4d 53 59 53 35 58 42 49   NABLE MEMSYS5XBI
+|   3456: 4e 41 52 59 1a 17 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3472: 45 20 4d 45 4d 53 59 53 35 58 4e 4f 43 41 53 45   E MEMSYS5XNOCASE
+|   3488: 19 16 05 00 29 0f 17 45 4e 41 42 4c 45 20 4d 45   ....)..ENABLE ME
+|   3504: 4d 53 59 53 35 58 52 54 52 49 4d 18 15 05 00 25   MSYS5XRTRIM....%
+|   3520: 0f 19 45 4e 41 42 4c 45 20 4a 53 4f 4e 31 59 42   ..ENABLE JSON1YB
+|   3536: 49 4e 41 52 59 18 14 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3552: 4c 45 20 4a 53 4f 4e 31 58 4e 4f 43 41 53 45 17   LE JSON1XNOCASE.
+|   3568: 13 05 00 25 0f 17 45 4e 41 42 4c 45 20 4a 53 4f   ...%..ENABLE JSO
+|   3584: 4e 31 58 52 54 52 49 4d 1a 12 05 00 29 0f 19 45   N1XRTRIM....)..E
+|   3600: 4e 41 42 4c 45 20 47 45 4f 50 4f 4c 59 58 42 49   NABLE GEOPOLYXBI
+|   3616: 4e 41 52 59 1a 11 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3632: 45 20 47 45 4f 50 4f 4c 59 58 4e 4f 43 41 53 45   E GEOPOLYXNOCASE
+|   3648: 19 10 05 00 29 0f 17 45 4e 41 42 4c 45 20 47 45   ....)..ENABLE GE
+|   3664: 4f 50 4f 4c 59 58 52 54 52 49 4d 17 0f 15 00 23   OPOLYXRTRIM....#
+|   3680: 0f 19 45 4e 41 42 4c 45 20 46 54 53 35 58 42 49   ..ENABLE FTS5XBI
+|   3696: 4e 41 52 59 17 0e 05 00 23 0f 19 45 4e 41 42 4c   NARY....#..ENABL
+|   3712: 45 20 46 54 53 35 58 4e 4f 43 41 53 45 16 0d 05   E FTS5XNOCASE...
+|   3728: 00 23 0f a4 45 4e 41 42 4c 45 20 46 54 53 35 58   .#..ENABLE FTS5X
+|   3744: 52 54 52 49 4d 17 0c 05 00 23 0f 19 45 4e 41 42   RTRIM....#..ENAB
+|   3760: 4c 45 20 46 54 53 34 58 42 49 4e 41 52 59 17 0b   LE FTS4XBINARY..
+|   3776: 05 00 23 0f 19 45 4e 41 42 4c 45 20 46 54 53 34   ..#..ENABLE FTS4
+|   3792: 58 4e 4f 43 41 53 45 16 0a 05 00 23 0f 17 45 4e   XNOCASE....#..EN
+|   3808: 41 42 4c 45 20 46 54 53 34 58 52 54 52 49 4d 1e   ABLE FTS4XRTRIM.
+|   3824: 09 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3840: 54 41 54 20 56 54 41 42 58 42 49 4e 41 52 59 1e   TAT VTABXBINARY.
+|   3856: 08 04 f0 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3872: 54 41 54 20 56 54 41 42 58 4e 4f 43 41 53 45 1d   TAT VTABXNOCASE.
+|   3888: 07 05 00 31 0f 17 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3904: 54 41 54 20 56 54 41 42 58 52 54 52 49 4d 11 06   TAT VTABXRTRIM..
+|   3920: 05 00 17 0f 19 44 45 42 55 47 58 42 49 4e 41 52   .....DEBUGXBINAR
+|   3936: 59 11 05 05 00 17 0f 19 44 45 42 55 47 58 4e 4f   Y.......DEBUGXNO
+|   3952: 43 41 53 45 10 04 05 00 17 0f 17 44 45 42 55 47   CASE.......DEBUG
+|   3968: 58 52 54 52 49 4d 27 03 05 00 43 0f 19 43 4f 4d   XRTRIM'...C..COM
+|   3984: 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e 30 20   PILER=gcc-5.4.0 
+|   4000: 32 30 31 36 30 36 30 39 58 42 49 4e 41 52 59 27   20160609XBINARY'
+|   4016: 02 05 00 43 0f 19 43 4f 4d 50 49 4c 45 52 3d 67   ...C..COMPILER=g
+|   4032: 63 63 2d 35 2e 34 2e 30 20 32 30 31 36 30 36 30   cc-5.4.0 2016060
+|   4048: 39 58 4e 4f 43 41 53 45 26 01 05 00 43 0f 17 43   9XNOCASE&...C..C
+|   4064: 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e   OMPILER=gcc-5.4.
+|   4080: 30 20 32 30 31 36 30 36 30 39 58 52 54 52 49 4d   0 20160609XRTRIM
+| page 6 offset 20480
+|      0: 0d 00 00 00 24 0e e0 00 0f f8 0f f0 0f e8 0f e0   ....$...........
+|     16: 0f d8 0f d0 0f c8 0f c0 0f b8 0f b0 0f a8 0f a0   ................
+|     32: 0f 98 0f 90 0f 88 0f 80 0f 78 0f 70 0f 68 0f 60   .........x.p.h.`
+|     48: 0f 58 0f 50 0f 48 0f 40 0f 38 0f 30 0f 28 0f 20   .X.P.H.@.8.0.(. 
+|     64: 0f 18 0f 10 0f 08 0f 00 0e f8 0e f0 0e e8 0e e0   ................
+|   3808: 06 24 03 00 12 02 01 01 06 23 03 00 12 02 01 01   .$.......#......
+|   3824: 06 22 03 00 12 02 01 01 06 21 03 00 12 03 01 01   .........!......
+|   3840: 06 20 03 00 22 03 01 01 06 1f 03 00 12 03 01 01   . ..............
+|   3856: 06 1e 03 00 12 03 01 01 06 1d 03 00 12 03 01 01   ................
+|   3872: 06 1c 03 00 12 03 01 01 06 1b 03 00 12 02 01 01   ................
+|   3888: 06 1a 03 00 12 02 01 01 06 19 03 00 12 02 01 01   ................
+|   3904: 06 18 03 00 12 02 01 01 06 17 03 00 12 02 01 01   ................
+|   3920: 06 16 03 00 12 02 01 01 06 15 03 00 12 02 01 01   ................
+|   3936: 06 14 03 00 12 02 01 01 06 13 03 00 12 02 01 01   ................
+|   3952: 06 12 03 00 12 02 01 01 06 11 03 00 12 02 01 01   ................
+|   3968: 06 10 03 00 12 02 01 01 06 0f 03 00 12 02 01 01   ................
+|   3984: 06 0e 03 00 12 02 01 01 06 0d 03 00 12 02 01 01   ................
+|   4000: 06 0c 03 00 12 02 01 01 06 0b 03 00 12 02 01 01   ................
+|   4016: 06 0a 03 00 12 02 01 01 06 09 03 00 12 03 01 01   ................
+|   4032: 06 08 03 00 12 03 01 01 06 07 03 00 12 03 01 01   ................
+|   4048: 06 a2 03 00 12 01 01 01 06 05 03 00 12 01 01 01   ................
+|   4064: 06 04 03 00 12 01 01 01 06 03 03 00 12 06 01 01   ................
+|   4080: 06 02 03 00 12 06 01 01 06 01 03 00 12 06 01 01   ................
+| page 7 offset 24576
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 8 offset 28672
+|      0: 0d 00 00 00 03 0f d6 00 0f f4 0f e9 0f d6 00 00   ................
+|   4048: 00 00 00 00 00 00 11 03 02 2b 69 6e 74 65 67 72   .........+integr
+|   4064: 69 74 79 2d 63 68 65 63 6b 09 02 02 1b 72 65 62   ity-check....reb
+|   4080: 75 69 6c 64 0a 01 02 1d 6f 70 74 69 6d 69 7a 65   uild....optimize
+| end crash-1ee8bd451dd1ad.db
+}]} {}
+
+do_catchsql_test 46.1 {
+  SELECT snippet(t1,'[','', '--',-1,10) FROM t1('*');
+} {/*malformed database schema*/}
+
+#--------------------------------------------------------------------------
+reset_db
+do_test 47.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 40960 pagesize 4096 filename 4b6fc659283f2735616c.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 0a   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 0d 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 00 00 00 0d 0b 6e 00 0f a3 0f 4c   ..........n....L
+|    112: 0e e1 0e 81 0e 24 0d cc 0d 72 0d 1b 0c b0 0c 50   .....$...r.....P
+|    128: 0b f8 0b b3 0b 6e 00 00 00 00 00 00 00 00 00 00   .....n..........
+|   2912: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 43 0d   ..............C.
+|   2928: 06 17 11 11 08 75 74 61 62 6c 65 74 34 74 34 43   .....utablet4t4C
+|   2944: 52 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41   REATE VIRTUAL TA
+|   2960: 42 4c 45 20 74 34 20 55 53 49 4e 47 20 66 74 73   BLE t4 USING fts
+|   2976: 35 76 6f 63 61 62 28 27 74 32 27 2c 20 27 72 6f   5vocab('t2', 'ro
+|   2992: 77 27 29 43 0c 06 17 11 11 08 75 74 61 62 6c 65   w')C......utable
+|   3008: 74 33 74 33 43 52 45 41 54 45 20 56 49 52 54 55   t3t3CREATE VIRTU
+|   3024: 41 4c 20 54 41 42 4c 45 20 74 33 20 55 53 49 4e   AL TABLE t3 USIN
+|   3040: 47 20 66 74 73 35 76 6f 63 61 62 28 27 74 31 27   G fts5vocab('t1'
+|   3056: 2c 20 27 72 6f 77 27 29 56 0b 06 17 1f 1f 01 7d   , 'row')V.......
+|   3072: 74 61 62 6c 65 7d 42 5f 63 6f 6e 66 69 67 74 32   table.B_configt2
+|   3088: 5f 63 6f 6e 66 69 67 0a 43 52 45 41 54 45 20 54   _config.CREATE T
+|   3104: 41 42 4c 45 20 27 74 32 5f 63 6f 6e 66 69 67 27   ABLE 't2_config'
+|   3120: 28 6b 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   (k PRIMARY KEY, 
+|   3136: 76 29 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44   v) WITHOUT ROWID
+|   3152: 5e 0a 07 17 21 21 01 81 07 74 61 62 6c 65 74 32   ^...!!...tablet2
+|   3168: 5f 63 6f 6e 74 65 6e 74 74 32 5f 63 6f 6e 74 65   _contentt2_conte
+|   3184: 6e 74 09 43 52 45 41 54 45 20 54 41 42 4c 45 20   nt.CREATE TABLE 
+|   3200: 27 74 32 5f 63 6f 6e 74 65 6e 74 27 28 69 64 20   't2_content'(id 
+|   3216: 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59 20   INTEGER PRIMARY 
+|   3232: 4b 45 59 2c 20 63 30 2c 20 63 31 2c 20 63 32 29   KEY, c0, c1, c2)
+|   3248: 69 09 07 17 19 19 01 81 2d 74 61 62 6c 65 74 32   i.......-tablet2
+|   3264: 5f 69 64 78 74 32 5f 69 64 78 08 43 52 45 41 54   _idxt2_idx.CREAT
+|   3280: 45 20 54 41 42 4c 45 20 27 74 32 5f 69 64 78 27   E TABLE 't2_idx'
+|   3296: 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20 70 67   (segid, term, pg
+|   3312: 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45 59 28   no, PRIMARY KEY(
+|   3328: 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20 57 49   segid, term)) WI
+|   3344: 54 48 4f 55 54 20 52 4f 57 49 44 55 08 07 17 1b   THOUT ROWIDU....
+|   3360: 1b 01 81 01 74 61 62 6c 65 74 32 5f 64 61 74 61   ....tablet2_data
+|   3376: 74 32 5f 64 61 74 61 07 43 52 45 41 54 45 20 54   t2_data.CREATE T
+|   3392: 41 42 4c 45 20 27 74 32 5f 64 61 74 61 27 28 69   ABLE 't2_data'(i
+|   3408: 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52   d INTEGER PRIMAR
+|   3424: 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c 4f   Y KEY, block BLO
+|   3440: 42 29 58 07 07 17 11 11 08 81 1d 74 61 62 6c 65   B)X........table
+|   3456: 74 32 74 32 43 52 45 41 54 45 20 56 49 52 54 55   t2t2CREATE VIRTU
+|   3472: 41 4c 20 54 41 42 4c 45 20 74 32 20 55 53 49 4e   AL TABLE t2 USIN
+|   3488: 47 20 66 74 73 35 28 27 61 27 2c 5b 62 5d 2c 22   G fts5('a',[b],.
+|   3504: 63 22 2c 64 65 74 61 69 6c 3d 6e 6f 6e 65 2c 63   c.,detail=none,c
+|   3520: 6f 6c 75 6d 6e 73 69 7a 65 3d 30 29 56 06 06 17   olumnsize=0)V...
+|   3536: 1f 1f 01 7d 74 61 62 6c 65 74 31 5f 63 6f 6e 66   ....tablet1_conf
+|   3552: 69 67 74 31 5f 63 6f 6e 66 69 67 06 43 52 45 41   igt1_config.CREA
+|   3568: 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63 6f 6e   TE TABLE 't1_con
+|   3584: 66 69 67 27 28 6b 20 50 52 49 4d 41 52 59 20 4b   fig'(k PRIMARY K
+|   3600: 45 59 2c 20 76 29 20 57 49 54 48 4f 55 54 20 52   EY, v) WITHOUT R
+|   3616: 4f 57 49 44 5b 05 07 17 21 21 01 81 01 74 61 62   OWID[...!!...tab
+|   3632: 6c 65 74 31 5f 64 6f 63 73 69 7a 65 74 31 5f 64   let1_docsizet1_d
+|   3648: 6f 63 73 69 7a 65 05 43 52 45 41 54 45 20 54 41   ocsize.CREATE TA
+|   3664: 42 4c 45 20 27 74 31 5f 64 6f 63 73 69 7a 65 27   BLE 't1_docsize'
+|   3680: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   (id INTEGER PRIM
+|   3696: 41 52 59 20 4b 45 59 2c 20 73 7a 20 42 4c 4f 42   ARY KEY, sz BLOB
+|   3712: 29 5e 04 07 17 21 21 01 81 07 74 61 62 6c 65 74   )^...!!...tablet
+|   3728: 31 5f 63 6f 6e 74 65 6f 74 74 31 5f 63 6f 6e 74   1_conteott1_cont
+|   3744: 65 6e 74 04 43 52 45 41 54 45 20 54 41 42 4c 45   ent.CREATE TABLE
+|   3760: 20 27 74 31 5f 63 6f 6e 74 65 6e 74 27 28 69 64    't1_content'(id
+|   3776: 20 49 4e 54 45 47 46 52 20 50 52 49 4d 41 52 59    INTEGFR PRIMARY
+|   3792: 20 4b 45 59 2c 20 63 30 2c 20 63 31 2c 20 63 32    KEY, c0, c1, c2
+|   3808: 29 69 03 07 17 19 19 01 81 2d 74 61 62 6c 65 74   )i.......-tablet
+|   3824: 31 5f 69 64 78 74 31 5f 69 64 78 03 43 52 45 41   1_idxt1_idx.CREA
+|   3840: 54 45 20 54 41 42 4c 45 20 27 74 31 5f 69 64 78   TE TABLE 't1_idx
+|   3856: 27 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20 70   '(segid, term, p
+|   3872: 67 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45 59   gno, PRIMARY KEY
+|   3888: 28 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20 57   (segid, term)) W
+|   3904: 49 54 48 4f 55 54 20 52 4f 57 49 44 55 02 07 17   ITHOUT ROWIDU...
+|   3920: 1b 1b 01 81 01 74 61 62 6c 65 74 31 5f 64 61 74   .....tablet1_dat
+|   3936: 61 74 31 5f 64 61 74 61 02 43 52 45 41 54 45 20   at1_data.CREATE 
+|   3952: 54 41 42 4c 45 20 27 74 31 5f 64 61 74 61 27 28   TABLE 't1_data'(
+|   3968: 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41   id INTEGER PRIMA
+|   3984: 52 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c   RY KEY, block BL
+|   4000: 4f 42 29 5b 01 07 17 11 11 08 81 23 74 61 62 6c   OB)[.......#tabl
+|   4016: 65 74 31 74 31 43 52 45 41 54 45 20 56 49 52 54   et1t1CREATE VIRT
+|   4032: 55 41 4c 20 54 41 42 4c 45 20 74 31 20 55 53 49   UAL TABLE t1 USI
+|   4048: 4e 47 20 66 74 73 35 28 61 2c 62 20 75 6e 69 6e   NG fts5(a,b unin
+|   4064: 64 65 78 65 64 2c 63 2c 74 6f 6b 65 6e 69 7a 65   dexed,c,tokenize
+|   4080: 3d 22 70 6f 72 74 65 72 20 61 73 63 69 69 22 29   =.porter ascii.)
+| page 2 offset 4096
+|      0: 0d 0f 68 00 05 0f 13 00 0f e6 0f 13 0f a8 0f 7c   ..h............|
+|     16: 0f 2a 00 00 00 00 00 00 00 00 00 00 00 00 00 00   .*..............
+|   3856: 00 00 00 15 0a 03 00 30 00 00 00 00 01 03 03 00   .......0........
+|   3872: 03 01 01 01 02 01 01 03 01 01 37 8c 80 80 80 80   ..........7.....
+|   3888: 01 03 00 74 00 00 00 2e 02 30 61 03 02 02 01 01   ...t.....0a.....
+|   3904: 62 03 02 03 01 01 63 03 02 04 01 01 67 03 06 01   b.....c.....g...
+|   3920: 02 02 01 01 68 03 06 01 02 03 01 01 69 03 06 01   ....h.......i...
+|   3936: 02 04 04 06 06 06 08 08 0f ef 00 14 2a 00 00 00   ............*...
+|   3952: 00 01 02 02 00 02 01 01 01 02 01 01 25 88 80 80   ............%...
+|   3968: 80 80 01 03 00 50 00 00 00 1f 02 30 67 02 08 02   .....P.....0g...
+|   3984: 01 02 02 01 01 68 02 08 03 01 02 03 01 01 69 02   .....h........i.
+|   4000: 08 04 01 02 04 04 09 09 37 84 80 80 80 80 01 03   ........7.......
+|   4016: 00 74 00 00 00 2e 02 30 61 01 02 02 01 01 62 01   .t.....0a.....b.
+|   4032: 02 03 01 01 63 01 02 04 01 01 67 01 06 01 02 01   ....c.....g.....
+|   4048: 01 01 68 01 06 01 02 03 01 01 69 01 06 01 02 04   ..h.......i.....
+|   4064: 04 06 06 06 08 08 07 01 03 00 14 03 09 00 09 00   ................
+|   4080: 00 00 11 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 3 offset 8192
+|      0: 0a 00 00 00 03 0f ec 00 0f fa 0f f3 0f ec 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 00 06 04 01 0c   ................
+|   4080: 01 03 02 06 04 01 0c 01 02 02 05 04 09 0c 01 02   ................
+| page 4 offset 12288
+|      0: 0d 00 00 00 03 0f be 00 0f ea 0f d4 0f be 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 14 03   ................
+|   4032: 05 00 17 17 17 61 20 62 20 63 67 20 68 20 69 67   .....a b cg h ig
+|   4048: 20 68 20 69 14 02 05 00 17 17 17 67 20 68 20 69    h i.......g h i
+|   4064: 61 20 62 20 63 67 20 68 20 69 14 01 05 00 17 17   a b cg h i......
+|   4080: 17 61 20 62 20 63 64 20 65 20 66 67 20 68 20 69   .a b cd e fg h i
+| page 5 offset 16384
+|      0: 0d 00 00 00 03 0f e8 00 0f f8 0f f0 0f e8 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 06 03 03 00 12 03 00 03   ................
+|   4080: 06 02 03 00 12 03 00 03 06 01 03 00 12 03 00 03   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 7 offset 24576
+|      0: 0d 00 00 00 03 0f 9e 00 0f e6 0f ef 0f 9e 00 00   ................
+|   3984: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 41 84   ..............A.
+|   4000: 80 80 80 80 01 04 00 81 06 00 00 00 34 02 30 61   ............4.0a
+|   4016: 01 01 01 01 01 62 01 01 01 01 01 63 01 01 01 01   .....b.....c....
+|   4032: 01 64 01 01 01 65 01 01 01 66 01 01 01 67 01 01   .d...e...f...g..
+|   4048: 01 01 01 68 01 01 01 01 01 69 01 01 01 04 06 06   ...h.....i......
+|   4064: 06 04 04 04 06 06 07 01 03 00 14 03 09 09 09 0f   ................
+|   4080: 0a 03 00 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 8 offset 28672
+|      0: 0a 00 00 00 01 0f fa 00 0f fa 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
+| page 9 offset 32768
+|      0: 0d 00 00 00 03 0f be 00 0f ea 0f d4 0f be 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 14 03   ................
+|   4032: 05 00 17 17 17 61 20 62 20 63 67 20 68 20 69 67   .....a b cg h ig
+|   4048: 20 68 20 69 14 02 05 00 17 17 17 67 20 68 20 69    h i.......g h i
+|   4064: 61 20 62 20 63 67 20 68 20 69 14 01 05 00 17 17   a b cg h i......
+|   4080: 17 61 20 62 20 63 64 20 65 20 66 67 20 68 20 69   .a b cd e fg h i
+| page 10 offset 36864
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| end 4b6fc659283f2735616c.db
+}]} {}
+
+do_catchsql_test 47.1 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+} {/*malformed database schema*/}
+
+do_catchsql_test 47.2 {
+  SELECT count(*) FROM (
+      SELECT snippet(t1, -1, '.', '..', '[', 50), 
+      highlight(t1, 2, '[', ']') FROM t1('g h') 
+      WHERE rank MATCH 'bm25(1.0, 1.0)' ORDER BY rank
+  )
+} {/*malformed database schema*/}
+
+#--------------------------------------------------------------------------
+reset_db
+do_test 48.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 32768 pagesize 4096 filename crash-44a8305b4bd86f.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 08   .....@  ........
+|     32: 00 00 00 02 00 00 00 01 00 00 00 09 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 0f c7 00 07 0d 92 00 0f 8d 0f 36   ...............6
+|    112: 0e cb 0e 6b 0e 0e 0d b6 0d 92 0d 92 00 00 00 00   ...k............
+|   3472: 00 00 22 08 06 17 11 11 01 31 74 61 62 6c 65 74   .........1tablet
+|   3488: 32 74 32 08 43 52 45 41 54 45 20 54 41 42 4c 45   2t2.CREATE TABLE
+|   3504: 20 74 32 28 78 29 56 07 06 17 1f 1f 01 7d 74 61    t2(x)V.......ta
+|   3520: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   blet1_configt1_c
+|   3536: 6f 6e 66 69 67 07 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
+|   3552: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
+|   3568: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
+|   3584: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 06    WITHOUT ROWID[.
+|   3600: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64   ..!!...tablet1_d
+|   3616: 6f 63 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65   ocsizet1_docsize
+|   3632: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
+|   3648: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
+|   3664: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
+|   3680: 59 2c 20 73 7a 20 42 4c 4f 42 29 5e 05 07 17 21   Y, sz BLOB)^...!
+|   3696: 21 01 81 07 74 61 62 6c 65 74 31 5f 63 6f 6e 74   !...tablet1_cont
+|   3712: 65 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 05 43 52   entt1_content.CR
+|   3728: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63   EATE TABLE 't1_c
+|   3744: 6f 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47   ontent'(id INTEG
+|   3760: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
+|   3776: 63 30 2c 20 63 31 2c 20 63 32 29 69 04 07 17 19   c0, c1, c2)i....
+|   3792: 19 01 81 2d 74 61 62 6c 65 74 31 5f 69 64 78 74   ...-tablet1_idxt
+|   3808: 31 5f 69 64 78 04 43 52 45 41 54 45 20 54 41 42   1_idx.CREATE TAB
+|   3824: 4c 45 20 27 74 31 5f 69 64 78 27 28 73 65 67 69   LE 't1_idx'(segi
+|   3840: 64 2c 20 74 65 72 6d 2c 20 70 67 6e 6f 2c 20 50   d, term, pgno, P
+|   3856: 52 49 4d 41 52 59 20 4b 45 59 28 73 65 67 69 64   RIMARY KEY(segid
+|   3872: 2c 20 74 65 72 6d 29 29 20 57 49 54 48 4f 55 54   , term)) WITHOUT
+|   3888: 20 52 4f 57 49 44 55 03 07 17 1b 1b 01 81 01 74    ROWIDU........t
+|   3904: 61 62 6c 65 74 31 5f 64 61 74 61 74 31 5f 64 61   ablet1_datat1_da
+|   3920: 74 61 03 43 52 45 41 54 45 20 54 41 42 4c 45 20   ta.CREATE TABLE 
+|   3936: 27 74 31 5f 64 61 74 61 27 28 69 64 20 49 4e 54   't1_data'(id INT
+|   3952: 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59   EGER PRIMARY KEY
+|   3968: 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42 29 38 02 06   , block BLOB)8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 35   LE t1 USING fts5
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 39 00 00 00 00 00   (a,b,c)...9.....
+| page 3 offset 8192
+|      0: 0d 00 00 00 03 0c 94 00 0f e6 0f ef 0c 94 00 00   ................
+|   3216: 00 00 00 00 86 4a 84 80 80 80 80 01 04 00 8d 18   .....J..........
+|   3232: 00 00 03 2b 02 30 30 01 02 06 01 02 06 01 02 06   ...+.00.........
+|   3248: 1f 02 03 01 02 03 01 02 03 01 08 32 30 31 36 30   ...........20160
+|   3264: 36 30 39 01 02 07 01 02 07 01 02 07 01 01 34 01   609...........4.
+|   3280: 02 05 01 02 05 01 02 05 01 01 35 01 02 04 01 02   ..........5.....
+|   3296: 04 01 02 04 02 07 30 30 30 30 30 30 30 1c 02 04   ......0000000...
+|   3312: 01 02 04 01 02 04 01 06 62 69 6e 62 72 79 03 06   ........binbry..
+|   3328: 01 02 02 03 06 01 02 02 03 06 01 02 01 03 16 01   ................
+|   3344: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3360: 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02   ................
+|   3376: 03 04 71 02 02 03 06 01 02 02 01 08 63 6f 6d 70   ..q.........comp
+|   3392: 69 6c 65 72 01 02 02 01 02 02 01 02 02 01 06 64   iler...........d
+|   3408: 62 73 74 61 74 07 02 03 01 02 03 01 02 03 02 04   bstat...........
+|   3424: 65 62 75 67 04 02 02 01 02 02 01 02 02 01 06 65   ebug...........e
+|   3440: 6e 61 62 6c 65 07 02 02 01 02 02 01 02 02 01 02   nable...........
+|   3456: 02 01 02 02 01 02 02 01 02 02 01 02 02 01 03 02   ................
+|   3472: 01 02 02 01 02 02 01 02 02 01 02 02 01 02 02 01   ................
+|   3488: 02 02 01 02 02 01 02 02 01 02 02 01 02 02 01 02   ................
+|   3504: 02 01 02 02 02 08 78 74 65 6e 73 69 6f 6e 1f 02   ......xtension..
+|   3520: 04 01 02 04 01 02 04 01 04 66 74 73 34 0a 02 03   .........fts4...
+|   3536: 01 02 03 01 02 03 04 01 35 0d 02 03 01 02 03 01   ........5.......
+|   3552: 02 03 01 03 67 63 63 01 02 03 01 02 03 01 02 03   ....gcc.........
+|   3568: 02 06 65 6f 70 6f 6c 79 10 02 03 01 02 03 01 02   ..eopoly........
+|   3584: 03 01 05 6a 73 6f 6e 31 13 02 03 01 02 03 01 02   ...json1........
+|   3600: 03 01 04 6c 6f 61 64 1f 02 03 01 02 03 01 02 03   ...load.........
+|   3616: 01 03 6d 61 78 1c 02 02 01 02 02 01 02 02 02 05   ..max...........
+|   3632: 65 6d 6f 72 79 1c 02 03 01 02 03 01 02 03 04 04   emory...........
+|   3648: 73 79 73 35 16 02 03 01 02 03 01 02 03 01 06 6e   sys5...........n
+|   3664: 6f 63 61 73 65 02 06 01 02 02 03 06 01 02 02 03   ocase...........
+|   3680: 06 01 02 02 03 06 01 02 02 03 06 01 02 02 13 06   ................
+|   3696: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3712: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3728: 02 01 04 6f 6d 69 74 1f 02 02 01 02 02 01 02 02   ...omit.........
+|   3744: 01 05 72 74 72 65 65 19 02 03 01 02 03 01 02 03   ..rtree.........
+|   3760: 04 02 69 6d 01 06 01 02 02 03 06 01 02 02 03 06   ..im............
+|   3776: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3792: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3808: 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02   ................
+|   3824: 01 0a 74 68 72 65 61 64 73 61 66 65 22 02 02 01   ..threadsafe....
+|   3840: 02 02 01 02 02 01 04 76 74 61 62 07 02 04 01 02   .......vtab.....
+|   3856: 04 01 02 04 01 01 78 01 06 01 01 02 01 06 01 01   ......x.........
+|   3872: 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02   ................
+|   3888: 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01   ................
+|   3904: 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06   ................
+|   3920: 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01   ................
+|   3936: 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01   ................
+|   3952: 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02   ................
+|   3968: 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01   ................
+|   3984: 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06   ................
+|   4000: 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01   ................
+|   4016: 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01   ................
+|   4032: 02 01 06 01 01 02 01 06 01 01 02 04 15 13 0c 0c   ................
+|   4048: 12 44 13 11 0f 47 13 0f 0c 0e 11 10 0f 0e 10 0f   .D...G..........
+|   4064: 44 0f 10 40 15 0f 07 01 03 00 14 24 5a 24 24 0f   D..@.......$Z$$.
+|   4080: 0a 03 00 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 4 offset 12288
+|      0: 0a 00 00 00 01 0f fa 00 0f fa 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0b 01 02   ................
+| page 5 offset 16384
+|      0: 0d 00 00 00 24 0c 0a 00 0f d8 0f af 0f 86 0f 74   ....$..........t
+|     16: 0f 61 0f 4e 0f 2f 0f 0f 0e ef 0e d7 0e be 0e a5   .a.N./..........
+|     32: 0e 8d 0e 74 0e 5b 0e 40 0e 24 0e 08 0d ef 0d d5   ...t.[.@.$......
+|     48: 0d bb 0d a0 0d 84 0d 68 0d 4f 0d 35 0d 1b 0c fb   .......h.O.5....
+|     64: 0c da 0c b9 0c 99 0c 78 0c 57 0c 3e 0c 24 0c 0a   .......x.W.>.$..
+|   3072: 00 00 00 00 00 00 00 00 00 00 18 24 05 00 25 0f   ...........$..%.
+|   3088: 19 54 48 52 45 41 44 53 41 46 45 3d 30 58 42 49   .THREADSAFE=0XBI
+|   3104: 4f 41 52 59 18 23 05 00 25 0f 19 54 48 52 45 41   OARY.#..%..THREA
+|   3120: 44 53 41 46 45 3d 30 58 4e 4f 43 41 53 45 17 22   DSAFE=0XNOCASE..
+|   3136: 05 00 25 0f 17 54 48 52 45 41 44 53 41 46 45 3d   ..%..THREADSAFE=
+|   3152: 30 58 52 54 52 49 4d 1f 21 05 00 33 0f 19 4f 4d   0XRTRIM.!..3..OM
+|   3168: 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49 4f   IT LOAD EXTENSIO
+|   3184: 4e 58 42 49 4e 41 52 59 1f 20 05 00 33 0f 19 4f   NXBINARY. ..3..O
+|   3200: 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49   MIT LOAD EXTENSI
+|   3216: 4f 4e 58 4e 4f 43 41 53 45 1e 1f 05 00 33 0f 17   ONXNOCASE....3..
+|   3232: 4f 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53   OMIT LOAD EXTENS
+|   3248: 49 4f 4e 58 52 54 52 49 4d 1f 1e 05 00 33 0f 19   IONXRTRIM....3..
+|   3264: 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30 30   MAX MEMORY=50000
+|   3280: 30 30 30 58 42 49 4e 41 52 59 1f 1d 05 00 33 0f   000XBINARY....3.
+|   3296: 19 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30   .MAX MEMORY=5000
+|   3312: 30 30 30 30 58 4e 4f 43 41 53 45 1e 1c 05 00 33   0000XNOCASE....3
+|   3328: 0f 17 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30   ..MAX MEMORY=500
+|   3344: 30 30 30 30 30 58 52 54 52 49 4d 18 1b 05 00 25   00000XRTRIM....%
+|   3360: 0f 19 45 4e 41 42 4c 45 20 52 54 52 45 45 58 42   ..ENABLE RTREEXB
+|   3376: 49 4e 41 52 59 18 1a 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3392: 4c 45 20 52 54 52 46 45 58 4e 4f 43 41 53 45 17   LE RTRFEXNOCASE.
+|   3408: 19 05 00 25 0f 17 45 4e 41 42 4c 45 20 52 54 52   ...%..ENABLE RTR
+|   3424: 45 45 58 52 54 52 49 4d 1a 18 05 00 29 0f 19 45   EEXRTRIM....)..E
+|   3440: 4e 41 42 4c 45 20 4d 45 4d 53 59 53 35 58 42 49   NABLE MEMSYS5XBI
+|   3456: 4e 41 52 59 1a 17 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3472: 45 20 4d 45 4d 53 59 53 35 58 4e 4f 43 41 53 45   E MEMSYS5XNOCASE
+|   3488: 19 16 05 00 29 0f 17 45 4e 41 42 4c 45 20 4d 45   ....)..ENABLE ME
+|   3504: 4d 53 59 53 35 58 52 54 52 49 4d 18 15 05 00 25   MSYS5XRTRIM....%
+|   3520: 0f 19 45 4e 41 42 4c 45 20 4a 53 4f 4e 31 58 42   ..ENABLE JSON1XB
+|   3536: 49 4e 41 52 59 18 14 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3552: 4c 45 20 4a 53 4f 4e 31 58 4e 4f 43 41 53 45 17   LE JSON1XNOCASE.
+|   3568: 13 05 00 25 0f 17 45 4e 41 42 4c 45 20 4a 53 4f   ...%..ENABLE JSO
+|   3584: 4e 31 58 52 54 52 49 4d 1a 12 05 00 29 0f 19 45   N1XRTRIM....)..E
+|   3600: 4e 41 42 4c 45 20 47 45 4f 50 4f 4c 59 57 42 49   NABLE GEOPOLYWBI
+|   3616: 4e 41 52 59 1a 11 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3632: 45 20 47 45 4f 50 4f 4c 59 58 4e 4f 42 41 53 45   E GEOPOLYXNOBASE
+|   3648: 19 10 05 00 29 0f 17 45 4e 41 42 4c 45 20 47 45   ....)..ENABLE GE
+|   3664: 4f 50 4f 4c 59 58 52 54 52 49 4d 17 0f 05 00 23   OPOLYXRTRIM....#
+|   3680: 0f 19 45 4e 41 42 4c 45 20 46 54 53 35 58 42 49   ..ENABLE FTS5XBI
+|   3696: 4e 41 52 59 17 0e 05 00 23 0f 19 45 4e 41 42 4c   NARY....#..ENABL
+|   3712: 45 20 46 54 53 35 58 4e 4f 43 41 53 45 16 0d 05   E FTS5XNOCASE...
+|   3728: 00 23 0f 17 45 4e 41 42 4c 45 20 46 54 53 35 58   .#..ENABLE FTS5X
+|   3744: 52 54 52 49 4d 17 0c 05 00 23 0f 19 45 4e 41 42   RTRIM....#..ENAB
+|   3760: 4c 45 20 46 54 53 34 58 42 49 4e 41 52 59 17 0b   LE FTS4XBINARY..
+|   3776: 05 00 23 0f 19 45 4e 41 42 4c 45 20 46 54 53 34   ..#..ENABLE FTS4
+|   3792: 58 4e 4f 43 41 53 45 16 0a 05 00 23 0f 17 45 4e   XNOCASE....#..EN
+|   3808: 41 42 4c 45 20 46 54 53 34 58 52 54 52 49 4d 1e   ABLE FTS4XRTRIM.
+|   3824: 09 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3840: 54 41 54 20 56 54 41 42 58 42 49 4e 41 52 59 1e   TAT VTABXBINARY.
+|   3856: 08 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3872: 54 41 54 20 56 54 41 42 58 4e 4f 43 41 53 45 1d   TAT VTABXNOCASE.
+|   3888: 07 05 00 31 0f 17 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3904: 54 41 54 20 66 54 41 42 58 52 54 52 49 4d 11 06   TAT fTABXRTRIM..
+|   3920: 05 00 17 0f 19 44 45 42 55 47 58 42 49 4e 41 52   .....DEBUGXBINAR
+|   3936: 59 11 05 05 00 17 0f 19 44 45 42 55 47 58 4e 4f   Y.......DEBUGXNO
+|   3952: 43 41 53 45 10 04 05 00 17 0f 17 44 45 42 55 47   CASE.......DEBUG
+|   3968: 58 62 54 52 49 4d 27 03 05 00 43 0f 19 43 4f 4d   XbTRIM'...C..COM
+|   3984: 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e 30 20   PILER=gcc-5.4.0 
+|   4000: 32 30 31 36 30 36 30 39 52 02 49 4e 41 52 59 27   20160609R.INARY'
+|   4016: 02 05 00 43 0f 19 43 4f 4d 50 49 4c 45 52 3d 67   ...C..COMPILER=g
+|   4032: 63 63 2d 35 2e 34 2e 30 20 32 30 31 36 30 36 30   cc-5.4.0 2016060
+|   4048: 39 58 4e 4f 43 41 53 45 26 01 05 00 43 0f 17 43   9XNOCASE&...C..C
+|   4064: 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e   OMPILER=gcc-5.4.
+|   4080: 30 20 32 30 31 36 30 36 30 39 58 52 54 52 49 4d   0 20160609XRTRIM
+| page 6 offset 20480
+|      0: 0d 00 00 00 24 0e e0 00 0f f8 0f f0 0f e8 0f e0   ....$...........
+|     16: 0f d8 0f d0 0f c8 0f c0 0f b8 0f b0 0f a8 0f a0   ................
+|     32: 0f 98 0f 90 0f 88 0f 80 0f 78 0f 70 0f 68 0f 60   .........x.p.h.`
+|     48: 0f 58 0f 50 0f 48 0f 40 0f 38 0f 30 0f 28 0f 20   .X.P.H.@.8.0.(. 
+|     64: 0f 18 0f 10 0f 08 0f 00 0e f8 0e f0 0e e8 0e e0   ................
+|   3808: 06 24 03 00 12 02 01 01 06 23 03 00 12 02 01 01   .$.......#......
+|   3824: 06 22 03 00 12 02 01 01 06 21 03 00 12 03 01 01   .........!......
+|   3840: 06 20 03 00 12 03 01 01 06 1f 03 00 12 03 01 01   . ..............
+|   3856: 06 1e 03 00 12 03 01 01 06 1d 03 00 12 03 01 01   ................
+|   3872: 06 1c 03 00 12 03 01 01 06 1b 03 00 12 02 01 01   ................
+|   3888: 06 1a 03 00 12 02 01 01 06 19 03 00 12 02 01 01   ................
+|   3904: 06 18 03 00 12 02 01 01 06 17 03 00 12 02 01 01   ................
+|   3920: 06 16 03 00 12 02 01 01 06 15 03 00 12 02 01 01   ................
+|   3936: 06 14 03 00 12 02 01 01 06 13 03 00 12 02 01 01   ................
+|   3952: 06 12 03 00 12 02 01 01 06 11 03 00 12 02 01 01   ................
+|   3968: 06 10 03 00 12 02 01 01 06 0f 03 00 12 02 01 01   ................
+|   3984: 06 0e 03 00 12 02 01 01 06 0d 03 00 12 02 01 01   ................
+|   4000: 06 0c 03 00 12 02 01 01 06 0b 03 00 12 02 01 01   ................
+|   4016: 06 0a 03 00 12 02 01 01 06 09 03 00 12 03 01 01   ................
+|   4032: 06 08 03 00 12 03 01 01 06 07 03 00 12 03 01 01   ................
+|   4048: 06 06 03 00 12 01 01 01 06 05 03 00 12 01 01 01   ................
+|   4064: 06 04 03 00 12 01 01 01 06 03 03 00 12 06 01 01   ................
+|   4080: 06 02 03 00 12 06 01 01 06 01 03 00 12 06 01 01   ................
+| page 7 offset 24576
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 8 offset 28672
+|      0: 0d 00 00 00 03 0f d6 00 0f f4 0f e9 0f d6 00 00   ................
+|   4048: 00 00 00 00 00 00 11 03 02 2b 69 6e 74 65 67 72   .........+integr
+|   4064: 69 74 79 2d 63 68 65 63 6b 09 02 02 1b 72 65 62   ity-check....reb
+|   4080: 75 69 6c 64 0a 01 02 1d 6f 70 74 69 5d 69 71 a5   uild....opti]iq.
+| end crash-44a8305b4bd86f.db
+}]} {}
+
+do_catchsql_test 48.1 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+} {1 {database disk image is malformed}}
+
+#--------------------------------------------------------------------------
+reset_db
+do_test 49.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 40960 pagesize 4096 filename crash-fd87385402ecf5.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 0a   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 0d 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 00 00 00 0d 0b 6e 00 0f a3 0f 4c   ..........n....L
+|    112: 0e e1 0e 81 0e 24 0d cc 0d 72 0d 1b 0c b0 0c 50   .....$...r.....P
+|    128: 0b f8 0b b3 0b 6e 00 00 00 00 00 00 00 00 00 00   .....n..........
+|   2912: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 43 0d   ..............C.
+|   2928: 06 17 11 11 08 75 74 61 62 6c 65 74 34 74 34 43   .....utablet4t4C
+|   2944: 52 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41   REATE VIRTUAL TA
+|   2960: 42 4c 45 20 74 34 20 55 53 49 4e 47 20 66 74 73   BLE t4 USING fts
+|   2976: 35 76 6f 63 61 62 28 27 74 32 27 2c 20 27 72 6f   5vocab('t2', 'ro
+|   2992: 77 27 29 43 0c 06 17 11 11 08 75 74 61 62 6c 65   w')C......utable
+|   3008: 74 33 74 33 43 52 45 41 54 45 20 56 49 52 54 55   t3t3CREATE VIRTU
+|   3024: 41 4c 20 54 41 42 4c 45 20 74 33 20 55 53 49 4e   AL TABLE t3 USIN
+|   3040: 47 20 66 74 73 35 76 6f 63 61 62 28 27 74 31 27   G fts5vocab('t1'
+|   3056: 2c 20 27 72 6f 77 27 29 56 0b 06 17 1f 1f 01 7d   , 'row')V.......
+|   3072: 74 61 62 6c 65 74 32 5f 63 6f 6e 66 69 67 74 32   tablet2_configt2
+|   3088: 5f 63 6f 6e 66 69 67 0a 43 52 45 41 54 45 20 54   _config.CREATE T
+|   3104: 41 42 4c 45 20 27 74 32 5f 63 6f 6e 66 69 67 27   ABLE 't2_config'
+|   3120: 28 6b 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   (k PRIMARY KEY, 
+|   3136: 76 29 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44   v) WITHOUT ROWID
+|   3152: 5e 0a 07 17 21 21 01 81 07 74 61 62 6c 65 74 32   ^...!!...tablet2
+|   3168: 5f 63 6f 6e 74 65 6e 74 74 32 5f 63 6f 6e 74 65   _contentt2_conte
+|   3184: 6e 74 09 43 52 45 41 54 45 20 54 41 42 4c 45 20   nt.CREATE TABLE 
+|   3200: 27 74 32 5f 63 6f 6e 74 65 6e 74 27 28 69 64 20   't2_content'(id 
+|   3216: 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59 20   INTEGER PRIMARY 
+|   3232: 4b 45 59 2c 20 63 30 2c 20 63 31 2c 20 63 32 29   KEY, c0, c1, c2)
+|   3248: 69 09 07 17 19 19 01 81 2d 74 61 62 6c 65 74 32   i.......-tablet2
+|   3264: 5f 69 64 78 74 32 5f 69 64 78 08 43 52 45 41 54   _idxt2_idx.CREAT
+|   3280: 45 20 54 41 42 4c 45 20 27 74 32 5f 69 64 78 27   E TABLE 't2_idx'
+|   3296: 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20 70 67   (segid, term, pg
+|   3312: 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45 59 28   no, PRIMARY KEY(
+|   3328: 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20 57 49   segid, term)) WI
+|   3344: 54 48 4f 55 54 20 52 4f 57 49 44 55 08 07 17 1b   THOUT ROWIDU....
+|   3360: 1b 01 81 01 74 61 62 6c 65 74 32 5f 64 61 74 61   ....tablet2_data
+|   3376: 74 32 5f 64 61 74 61 07 43 52 45 41 54 45 20 54   t2_data.CREATE T
+|   3392: 41 42 4c 45 20 27 74 32 5f 64 61 74 61 27 28 69   ABLE 't2_data'(i
+|   3408: 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52   d INTEGER PRIMAR
+|   3424: 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c 4f   Y KEY, block BLO
+|   3440: 42 29 58 07 07 17 11 11 08 81 1d 74 61 62 6c 65   B)X........table
+|   3456: 74 32 74 32 43 52 45 41 54 45 20 56 49 52 54 55   t2t2CREATE VIRTU
+|   3472: 41 4c 20 54 41 42 4c 45 20 74 32 20 55 53 49 4e   AL TABLE t2 USIN
+|   3488: 47 20 66 74 73 35 28 27 61 27 2c 5b 62 5d 2c 22   G fts5('a',[b],.
+|   3504: 63 22 2c 64 65 74 61 69 6c 3d 6e 6f 6e 65 2c 63   c.,detail=none,c
+|   3520: 6f 6c 75 6d 6e 73 69 7a 65 3d 30 29 56 06 06 17   olumnsize=0)V...
+|   3536: 1f 1f 01 7d 74 61 62 6c 65 74 31 5f 63 6f 6e 66   ....tablet1_conf
+|   3552: 69 67 74 31 5f 63 6f 6e 66 69 67 06 43 52 45 41   igt1_config.CREA
+|   3568: 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63 6f 6e   TE TABLE 't1_con
+|   3584: 66 69 67 27 28 6b 20 50 52 49 4d 41 52 59 20 4b   fig'(k PRIMARY K
+|   3600: 45 59 2c 20 76 29 20 57 49 54 48 4f 55 54 20 52   EY, v) WITHOUT R
+|   3616: 4f 57 49 44 5b 05 07 17 21 21 01 81 01 74 61 62   OWID[...!!...tab
+|   3632: 6c 65 74 31 5f 64 6f 63 73 69 7a 65 74 31 5f 64   let1_docsizet1_d
+|   3648: 6f 63 73 69 7a 65 05 43 52 45 41 54 45 20 54 41   ocsize.CREATE TA
+|   3664: 42 4c 45 20 27 74 31 5f 64 6f 63 73 69 7a 65 27   BLE 't1_docsize'
+|   3680: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   (id INTEGER PRIM
+|   3696: 41 52 59 20 4b 45 59 2c 20 73 7a 20 42 4c 4f 42   ARY KEY, sz BLOB
+|   3712: 29 5e 04 07 17 21 21 01 81 07 74 61 62 6c 65 74   )^...!!...tablet
+|   3728: 31 5f 63 6f 6e 74 65 6e 74 74 31 5f 63 6f 6e 74   1_contentt1_cont
+|   3744: 65 6e 74 04 43 52 45 41 54 45 20 54 41 42 4c 45   ent.CREATE TABLE
+|   3760: 20 27 74 31 5f 63 6f 6e 74 65 6e 74 27 28 69 64    't1_content'(id
+|   3776: 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59    INTEGER PRIMARY
+|   3792: 20 4b 45 59 2c 20 63 30 2c 20 63 31 2c 20 63 32    KEY, c0, c1, c2
+|   3808: 29 69 03 07 17 19 19 01 81 2d 74 61 62 6c 65 74   )i.......-tablet
+|   3824: 31 5f 69 64 78 74 31 5f 69 64 78 03 43 52 45 41   1_idxt1_idx.CREA
+|   3840: 54 45 20 54 41 42 4c 45 20 27 74 31 5f 69 64 78   TE TABLE 't1_idx
+|   3856: 27 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20 70   '(segid, term, p
+|   3872: 67 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45 59   gno, PRIMARY KEY
+|   3888: 28 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20 57   (segid, term)) W
+|   3904: 49 54 48 4f 55 54 20 52 4f 57 49 44 55 02 07 17   ITHOUT ROWIDU...
+|   3920: 1b 1b 01 81 01 74 61 62 6c 65 74 31 5f 64 61 74   .....tablet1_dat
+|   3936: 61 74 31 5f 64 61 74 61 02 43 52 45 41 54 45 20   at1_data.CREATE 
+|   3952: 54 41 42 4c 45 20 27 74 31 5f 64 61 74 61 27 28   TABLE 't1_data'(
+|   3968: 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41   id INTEGER PRIMA
+|   3984: 52 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c   RY KEY, block BL
+|   4000: 4f 42 29 5b 01 07 17 11 11 08 81 23 74 61 62 6c   OB)[.......#tabl
+|   4016: 65 74 31 74 31 43 52 45 41 54 45 20 56 49 52 54   et1t1CREATE VIRT
+|   4032: 55 41 4c 20 54 41 42 4c 45 20 74 31 20 55 53 49   UAL TABLE t1 USI
+|   4048: 4e 47 20 66 74 73 35 28 61 2c 62 20 75 6e 69 6e   NG fts5(a,b unin
+|   4064: 64 65 78 65 64 2c 63 2c 74 6f 6b 65 6e 69 7a 65   dexed,c,tokenize
+|   4080: 3d 22 70 6f 72 74 65 72 20 61 73 63 69 69 22 29   =.porter ascii.)
+| page 2 offset 4096
+|      0: 0d 0f 68 00 05 0f 13 00 0f e6 0f 13 0f a8 0f 7c   ..h............|
+|     16: 0f 2a 00 00 00 00 00 00 00 00 00 00 00 00 00 00   .*..............
+|   3856: 00 00 00 15 0a 03 00 30 00 00 00 00 01 03 03 00   .......0........
+|   3872: 03 01 01 01 02 01 01 03 01 01 37 8c 80 80 80 80   ..........7.....
+|   3888: 01 03 00 74 00 20 68 20 69 0d 00 00 00 03 0f e8   ...t. h i.......
+|   3904: 00 0f f8 0f f0 0f e8 00 00 00 00 00 00 00 00 00   ................
+| page 5 offset 16384
+|   4064: 00 00 00 00 00 00 00 00 06 03 03 00 12 03 00 00   ................
+|   4080: 60 20 30 d6 20 30 00 30 60 10 30 01 20 30 00 30   ` 0. 0.0`.0. 0.0
+| page 6 offset 20480
+|      0: a0 00 00 00 10 ff 40 00 ff 00 00 00 00 00 00 00   ......@.........
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 7 offset 24576
+|      0: 0d 00 00 00 03 0f 9e 00 0f e6 0f ef 0f 9e 00 00   ................
+|   3984: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 41 84   ..............A.
+|   4000: 80 80 80 80 01 04 00 81 06 00 00 00 34 02 30 61   ............4.0a
+|   4016: 01 01 00 00 00 00 00 00 00 00 00 11 87 89 06 26   ...............&
+|   4032: 01 64 01 01 01 65 01 01 01 66 01 01 01 67 01 01   .d...e...f...g..
+|   4048: 01 01 01 68 01 01 01 01 01 69 01 01 01 04 06 06   ...h.....i......
+|   4064: 06 04 44 00 06 06 07 01 03 00 14 03 09 09 09 0f   ..D.............
+|   4080: 0a 03 00 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 8 offset 28672
+|      0: 0a 00 00 00 01 0f fa 00 0f fa 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
+| page 9 offset 32768
+|      0: 0d 00 00 00 9d 0f be 00 0f ea 0f d4 0f be 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 14 03   ................
+|   4032: 05 00 17 17 17 61 20 62 20 63 67 20 68 20 69 67   .....a b cg h ig
+|   4048: 20 68 20 69 14 02 05 00 17 17 17 67 20 68 20 69    h i.......g h i
+|   4064: 61 20 62 20 63 67 20 68 20 69 14 01 05 00 17 17   a b cg h i......
+|   4080: 17 61 20 62 20 63 64 20 65 20 66 67 20 68 20 69   .a b cd e fg h i
+| page 10 offset 36864
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| end crash-fd87385402ecf5.db
+}]} {}
+
+do_catchsql_test 49.1 {
+  SELECT term FROM t4 WHERE term LIKE 'oase';
+} {1 {database disk image is malformed}}
+
+#--------------------------------------------------------------------------
+reset_db
+do_test 50.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 40960 pagesize 4096 filename crash-695bce8a3e107c.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 0a   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 0d 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 00 00 00 0d 0b 6e 00 0f a3 0f 4c   ..........n....L
+|    112: 0e e1 0e 81 0e 24 0d cc 0d 72 0d 1b 0c b0 0c 50   .....$...r.....P
+|    128: 0b f8 0b b3 0b 6e 00 00 00 00 00 00 00 00 00 00   .....n..........
+|   2912: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 43 0d   ..............C.
+|   2928: 06 17 11 11 08 75 74 61 62 6c 65 74 34 74 34 43   .....utablet4t4C
+|   2944: 52 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41   REATE VIRTUAL TA
+|   2960: 42 4c 45 20 74 34 20 55 53 49 4e 47 20 66 74 73   BLE t4 USING fts
+|   2976: 35 76 6f 63 61 62 28 27 74 32 27 2c 20 27 72 6f   5vocab('t2', 'ro
+|   2992: 77 27 29 43 0c 06 17 11 11 08 75 74 61 62 6c 65   w')C......utable
+|   3008: 74 33 74 33 43 52 45 41 54 45 20 56 49 52 54 55   t3t3CREATE VIRTU
+|   3024: 41 4c 20 54 41 42 4c 45 20 74 33 20 55 53 49 4e   AL TABLE t3 USIN
+|   3040: 47 20 66 74 73 35 76 6f 63 61 62 28 27 74 31 27   G fts5vocab('t1'
+|   3056: 2c 20 27 72 6f 77 27 29 56 0b 06 17 1f 1f 01 7d   , 'row')V.......
+|   3072: 74 61 62 6c 65 74 32 5f 63 6f 6e 66 69 67 74 32   tablet2_configt2
+|   3088: 5f 63 6f 6e 66 69 67 0a 43 52 45 41 54 45 20 54   _config.CREATE T
+|   3104: 41 42 4c 45 20 27 74 32 5f 63 6f 6e 66 69 67 27   ABLE 't2_config'
+|   3120: 28 6b 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   (k PRIMARY KEY, 
+|   3136: 76 29 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44   v) WITHOUT ROWID
+|   3152: 5e 0a 07 17 21 21 01 81 07 74 61 62 6c 65 74 32   ^...!!...tablet2
+|   3168: 5f 63 6f 6e 74 65 6e 74 74 32 5f 63 6f 6e 74 65   _contentt2_conte
+|   3184: 6e 74 09 43 52 45 41 54 45 20 54 41 42 4c 45 20   nt.CREATE TABLE 
+|   3200: 27 74 32 5f 63 6f 6e 74 65 6e 74 27 28 69 64 20   't2_content'(id 
+|   3216: 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59 20   INTEGER PRIMARY 
+|   3232: 4b 45 59 2c 20 63 30 2c 20 63 31 2c 20 63 32 29   KEY, c0, c1, c2)
+|   3248: 69 09 07 17 19 19 01 81 2d 74 61 62 6c 65 74 32   i.......-tablet2
+|   3264: 5f 69 64 78 74 32 5f 69 64 78 08 43 52 45 41 54   _idxt2_idx.CREAT
+|   3280: 45 20 54 41 42 4c 45 20 27 74 32 5f 69 64 78 27   E TABLE 't2_idx'
+|   3296: 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20 70 67   (segid, term, pg
+|   3312: 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45 59 28   no, PRIMARY KEY(
+|   3328: 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20 57 49   segid, term)) WI
+|   3344: 54 48 4f 55 54 20 52 4f 57 49 44 55 08 07 17 1b   THOUT ROWIDU....
+|   3360: 1b 01 81 01 74 61 62 6c 65 74 32 5f 64 61 74 61   ....tablet2_data
+|   3376: 74 32 5f 64 61 74 61 07 43 52 45 41 54 45 20 54   t2_data.CREATE T
+|   3392: 41 42 4c 45 20 27 74 32 5f 64 61 74 61 27 28 69   ABLE 't2_data'(i
+|   3408: 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52   d INTEGER PRIMAR
+|   3424: 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c 4f   Y KEY, block BLO
+|   3440: 42 29 58 07 07 17 11 11 08 81 1d 74 61 62 6c 65   B)X........table
+|   3456: 74 32 74 32 43 52 45 41 54 45 20 56 49 52 54 55   t2t2CREATE VIRTU
+|   3472: 41 4c 20 54 41 42 4c 45 20 74 32 20 55 53 49 4e   AL TABLE t2 USIN
+|   3488: 47 20 66 74 73 35 28 27 61 27 2c 5b 62 5d 2c 22   G fts5('a',[b],.
+|   3504: 63 22 2c 64 65 74 61 69 6c 3d 6e 6f 6e 65 2c 63   c.,detail=none,c
+|   3520: 6f 6c 75 6d 6e 73 69 7a 65 3d 30 29 56 06 06 17   olumnsize=0)V...
+|   3536: 1f 1f 01 7d 74 61 62 6c 65 74 31 5f 63 6f 6e 66   ....tablet1_conf
+|   3552: 69 67 74 31 5f 63 6f 6e 66 69 67 06 43 52 45 41   igt1_config.CREA
+|   3568: 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63 6f 6e   TE TABLE 't1_con
+|   3584: 66 69 67 27 28 6b 20 50 52 49 4d 41 52 59 20 4b   fig'(k PRIMARY K
+|   3600: 45 59 2c 20 76 29 20 57 49 54 48 4f 55 54 20 52   EY, v) WITHOUT R
+|   3616: 4f 57 49 44 5b 05 07 17 21 21 01 81 01 74 61 62   OWID[...!!...tab
+|   3632: 6c 65 74 31 5f 64 6f 63 73 69 7a 65 74 31 5f 64   let1_docsizet1_d
+|   3648: 6f 63 73 69 7a 65 05 43 52 45 41 54 45 20 54 41   ocsize.CREATE TA
+|   3664: 42 4c 45 20 27 74 31 5f 64 6f 63 73 69 7a 65 27   BLE 't1_docsize'
+|   3680: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   (id INTEGER PRIM
+|   3696: 41 52 59 20 4b 45 59 2c 20 73 7a 20 42 4c 4f 42   ARY KEY, sz BLOB
+|   3712: 29 5e 04 07 17 21 21 01 81 07 74 61 62 6c 65 74   )^...!!...tablet
+|   3728: 31 5f 63 6f 6e 74 65 6e 74 74 31 5f 63 6f 6e 74   1_contentt1_cont
+|   3744: 65 6e 74 04 43 52 45 41 54 45 20 54 41 42 4c 45   ent.CREATE TABLE
+|   3760: 20 27 74 31 5f 63 6f 6e 74 65 6e 74 27 28 69 64    't1_content'(id
+|   3776: 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59    INTEGER PRIMARY
+|   3792: 20 4b 45 59 2c 20 63 30 2c 20 63 31 2c 20 63 32    KEY, c0, c1, c2
+|   3808: 29 69 03 07 17 19 19 01 81 2d 74 61 62 6c 65 74   )i.......-tablet
+|   3824: 31 5f 69 64 78 74 31 5f 69 64 78 03 43 52 45 41   1_idxt1_idx.CREA
+|   3840: 54 45 20 54 41 42 4c 45 20 27 74 31 5f 69 64 78   TE TABLE 't1_idx
+|   3856: 27 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20 70   '(segid, term, p
+|   3872: 67 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45 59   gno, PRIMARY KEY
+|   3888: 28 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20 57   (segid, term)) W
+|   3904: 49 54 48 4f 55 54 20 52 4f 57 49 44 55 02 07 17   ITHOUT ROWIDU...
+|   3920: 1b 1b 01 81 01 74 61 62 6c 65 74 31 5f 64 61 74   .....tablet1_dat
+|   3936: 61 74 31 5f 64 61 74 61 02 43 52 45 41 54 45 20   at1_data.CREATE 
+|   3952: 54 41 42 4c 45 20 27 74 31 5f 64 61 74 61 27 28   TABLE 't1_data'(
+|   3968: 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41   id INTEGER PRIMA
+|   3984: 52 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c   RY KEY, block BL
+|   4000: 4f 42 29 5b 01 07 17 11 11 08 81 23 74 61 62 6c   OB)[.......#tabl
+|   4016: 65 74 31 74 31 43 52 45 41 54 45 20 56 49 52 54   et1t1CREATE VIRT
+|   4032: 55 41 4c 20 54 41 42 4c 45 20 74 31 20 55 53 49   UAL TABLE t1 USI
+|   4048: 4e 47 20 66 74 73 35 28 61 2c 62 20 75 6e 69 6e   NG fts5(a,b unin
+|   4064: 64 65 78 65 64 2c 63 2c 74 6f 6b 65 6e 69 7a 65   dexed,c,tokenize
+|   4080: 3d 22 70 6f 72 74 65 72 20 61 73 63 69 69 22 29   =.porter ascii.)
+| page 2 offset 4096
+|      0: 0d 0f 68 00 05 0f 13 00 0f e6 0f 13 0f a8 0f 7c   ..h............|
+|     16: 0f 2a 00 00 00 00 00 00 00 00 00 00 00 00 00 00   .*..............
+|   3856: 00 00 00 15 0a 03 00 30 00 00 00 00 01 03 03 00   .......0........
+|   3872: 03 01 01 01 02 01 01 03 01 01 37 8c 80 80 80 80   ..........7.....
+|   3888: 01 03 00 74 00 20 68 20 69 0d 00 00 00 03 0f e8   ...t. h i.......
+|   3904: 00 0f f8 0f f0 0f e8 00 00 00 00 00 00 00 00 00   ................
+| page 5 offset 16384
+|   4064: 00 00 00 00 00 00 00 00 06 03 03 00 12 03 00 00   ................
+|   4080: 60 20 30 d6 20 30 00 30 60 10 30 01 20 30 00 30   ` 0. 0.0`.0. 0.0
+| page 6 offset 20480
+|      0: a0 00 00 00 10 ff 40 00 ff 00 00 00 00 00 00 00   ......@.........
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 7 offset 24576
+|      0: 0d 00 00 00 03 0f 9e 00 0f e6 0f ef 0f 9e 00 00   ................
+|   3984: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 41 84   ..............A.
+|   4000: 80 80 80 80 01 04 00 81 06 00 00 00 34 02 30 61   ............4.0a
+|   4016: 01 01 00 00 00 00 00 00 00 00 00 11 87 89 06 26   ...............&
+|   4032: 01 64 01 01 01 65 01 01 01 66 01 01 01 67 01 01   .d...e...f...g..
+|   4048: 01 01 01 68 01 01 01 01 01 69 01 01 01 04 06 06   ...h.....i......
+|   4064: 06 04 44 00 06 06 07 01 03 00 14 03 09 09 09 0f   ..D.............
+|   4080: 0a 03 00 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 8 offset 28672
+|      0: 0a 00 00 00 01 0f fa 00 0f fa 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
+| page 9 offset 32768
+|      0: 0d 00 00 00 9d 0f be 00 0f ea 0f d4 0f be 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 14 03   ................
+|   4032: 05 00 17 17 17 61 20 62 20 63 67 20 68 20 69 67   .....a b cg h ig
+|   4048: 20 68 20 69 14 02 05 00 17 17 17 67 20 68 20 69    h i.......g h i
+|   4064: 61 20 62 20 63 67 20 68 20 69 14 01 05 00 17 17   a b cg h i......
+|   4080: 17 61 20 62 20 63 64 20 65 20 66 67 20 68 20 69   .a b cd e fg h i
+| page 10 offset 36864
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| end crash-695bce8a3e107c.db
+}]} {}
+
+do_catchsql_test 50.1 {
+  SELECT term FROM t4 WHERE term LIKE '»as';
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 51.0 {
+BEGIN TRANSACTION;
+PRAGMA writable_schema=ON;
+CREATE VIRTUAL TABLE t1 USING fts5(a,b,c);
+CREATE TABLE IF NOT EXISTS 't1_data'(id INTEGER PRIMARY KEY, block BLOB);
+REPLACE INTO t1_data VALUES(1,X'2eb1182424');
+REPLACE INTO t1_data VALUES(10,X'000000000102080002010101020107');
+INSERT INTO t1_data VALUES(137438953473,X'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');
+INSERT INTO t1_data 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VALUES(274877906950,X'00040e1807020e0830cebc66f09f97b60604840703016b06021003016c0804835103016d0a0484050301710602560301730304822d030275770904834e0301770204824d0302797707022e0302c2b2070482640402bc6d0a025e0303c3a6370602530305cebc7768690a04823f0201be0504816f0301780a0482780201bf0a04833a0305f09e919a790a0483440103cf80340604827e0201810404823e0201830304843a0504837f0301780704834c02018407048139020186030881038372030178010231020187010481100201880204835b0204845a0104825a0201890204825c0604831802018a0704841502028c340304845e02018e0602180301390204833c0203936e770104820f0201940704823702039765630304847b020199080484110301710704821402029b650704827102019d0304845802019f0504845c0303e7ba880502690202a163090484160201a3060483020301680102470201a90a0482480201ab0104837f030482570201af050482190201b20a0481020201b30504842903026f64040483650203b873780704826d0201bb0704831c030177020481410102d0b0070482560202b17a050484460201b2040483400201b40402390202b671020484220202b777090483510201ba030481750202bb6301021e0202bc620a0484080201bd0204815d0201be060482470201bf040483340102d1800904825002028470050482290202876f06022202048872c5820104826202028b680504845d02018c0a027302018d0a0205020197090483210202986b0a02780201a3030481580201a70604835e020483670201a901048379060483780201ad0a04816b0201af010482310201b1080482020201b3060484610202b5640804814c03026e690304847c0201bb080482710201bd020482020201bf06048435010482590107d28b37c2ba61640104831702018d0704810b020393c5890204836e0201950602070305f6a5989a74040484450201970104813702029f790a04843f0202a57407027f0201a90504835b0202ab750502490202b9760a04827d0301780304826e0202bb6f060481780203bd7130050483630103d3866f09023602028a6c0604825302018c0304845302028e650404833a02028f6f0104821302039d356d090484320201a5020481130404813f0201ab0704835b0201b90a0482380201bd0904833c0201bf060484450302307604027f0102d491050483300201930a024603036bd291070483060201970704826702079b72c2b3356f730904844f02019d010482610201a10404814d0202a36b0502250203a5c7b3080483780201ab02023d0103d5a1640102260201a206026a0301660804813c0201a5030481180201a7050483360201a9040483510201aa060482020201ab0504811e0201bb090481680202bd740702160202be700304846d0102d6840a027d02068534f0988d910a0483730102d78f0404832804048462020390766601027802019202027405024b0201940a04834d020298770904815702039a6c6b0304846802049c73616e080483420201b0010481050202b565050481290206b67376c2aa640a0483280201b80704830e0102d89d0202150802720201a60602480202b073090481480201ba0204836f0102d9a50202670201b40a04822a030337c2b20a04820f0102da800604831c0201840604842802038636380804811e020188090484190201920504815402019a0304830c0201a301023d0201a6040481460201a8020484100201af0104842a0204825f0201b50304827c0201bb0804830f0105dbb878c2bc0502580107dc97e69eaf6764020259020299610104812902029d680502110202a0690a0483270203a56372030483540202a96a0204842c0205acf094abac0704821c0102dd92020483410203946d790304814f020395d7ac090228020296300404830302039b397809020a02029c770504833d0202a2700504821a0201ab010483400202b0760a04813a0201b2040483130203b3c7a10104833d0204b4e8a5a40604816f0201b90604830d0201ba090483630102de800904810a020281740a02380201880704826802018f030481670201900202790203916e710404833502019206048418020399ddba080481240202a3630a02250202b86e070481670204830d0201b90604811f0201bc070481530102df820102390201830304830102038e367901024f02039134620a0482080201920104814b020198030484790202a06b060481240201ba0802090201be08022f03023670010482170202bf6f01022d0103e0a1960304831d0302bb75060483700202a2900804817c0202a49e050485010202a6b2040482030202aa80040481720202abb30304843c0301ba0204833b0203aca677010481120206ae9f613566730504841e0202afa001020a0302a979080484060202b1a1010483730203b2a46a070482460301ba020484580203b39b610804834a0202b6a60304813b0202bfae0404837c0103e185930304845f02038889780a04826802028a85070484620301b90304826c020298a3070483270203af8962050484620202b5b7070481170202b8970602190202bd8f0a0482620103e2848f04021b0203afa861020484010301b70704824a0103e3828f05048214020284a50304812f0202909e0904824d020292b907026302049ba0336604020602029c8e0204840d0202ad860202750302a16a0802180202ae880602040202b480010483150202b7b1090483780202bdbf070482050103e480ab06020f0202889605024f020293b9030483310204968fdc93080483110202a295010484150202a69a0804844d0202a78e0a02080202aa9b0a04825f0203b2b8670402720203b5b764060482550204babacf87070481270202bd9b010481780206be9a6878696805021e0103e58bba0304821202049eab6a630a04827702029faf08024d0202a2b50a02400202a3af0704827c0203a4bd6f0504840c0202ad9d030485010202b1be040483780202b5b9060484500103e689b10404844602028abc0704811902038e98690802320203968b35090482680203979971010483060202b6a4030484050301be0a04833e0103e780a601048171020282be0304824d020286b105021b02028f960a048266020291be0804831c020299900204815502029ea70702400202a0ba040481410204a69e3870030481220202a9800602310202afb8020482170203b1af6d0802140203b5a06a0702740104e88c9a6c06048426020295bc05048326020296af0304846b02059cad72d4aa060484780205baa97364680404837b0103e983840104843902029a8a010481490203a1ac770504812c0301ba050483410202af8c0302620202b1af0302500103ea8fa60a023e020297b50904812e020298a90704825702039ea76b0304847f0202a59e080481460202a68e080482590204a9b1c6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+INSERT INTO t1_data VALUES(274877906951,X'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');
+CREATE TABLE IF NOT EXISTS 't1_idx'(segid, term, pgno, PRIMARY KEY(segid, term)) WITHOUT ROWID;
+INSERT INTO t1_idx VALUES(2,X'',2);
+INSERT INTO t1_idx VALUES(2,X'30627a',4);
+INSERT INTO t1_idx VALUES(2,X'306a32',6);
+INSERT INTO t1_idx VALUES(2,X'307173',8);
+INSERT INTO t1_idx VALUES(2,X'307972',10);
+INSERT INTO t1_idx VALUES(2,X'30cebc66',12);
+INSERT INTO t1_idx VALUES(2,X'30f2ab',14);
+CREATE TABLE IF NOT EXISTS 't1_content'(id INTEGER PRIMARY KEY, c0, c1,Öc2);
+INSERT INTO t1_content VALUES(1,'COMPILER=gcc-5.4.0 20160609','X','RTRIM');
+INSERT INTO t1_content VALUES(2,'COMPILER=gcc-5.4.0 20160609','X','NOCASE');
+INSERT INTO t1_content VALUES(3,'COMPILER=gcc-5.4.0 20160609','X','BINARY');
+INSERT INTO t1_content VALUES(4,'DEBUG','X','RTRIM');
+INSERT INTO t1_content VALUES(5,'DEBUG','X','NOCASE');
+INSERT INTO t1_content VALUES(6,'DEBUG','X','BINARY');
+INSERT INTO t1_content VALUES(7,'ENABLE DBSTAT VTAB','X','RTRIM');
+INSERT INTO t1_content VALUES(8,'ENABLE DBSTAT VTAB','X','NOCASE');
+INSERT INTO t1_content VALUES(9,'ENABLE DBSTAT VTAB','X','BINARY');
+INSERT INTO t1_content VALUES(10,'ENABLE FTS4','X','RTRIM');
+INSERT INTO t1_content VALUES(11,'ENABLE FTS4','X','NOCASE');
+INSERT INTO t1_content VALUES(12,'ENABLE FUS4','X','BINARY');
+INSERT INTO t1_content VALUES(0,NULL,NULL,NULL);
+INSERT INTO t1_content VALUES(33,'OMIT LOAD EXTENSION','X','BINARY');
+INSERT INTO t1_content VALUES(32,'OMIT LOAD EXTENSION','X','NOCASE');
+INSERT INTO t1_content VALUES(31,'OMYT LOAD EXTENSION','X','RTRIM');
+INSERT INTO t1_content VALUES(30,'MAX MEMORY=50000000','W','BINARY');
+INSERT INTO t1_content VALUES(29,'MAX MEMORY=50000000','X','NOCASE');
+INSERT INTO t1_content VALUES(28,'MAX MEMORY=50000000','X','RTRIM');
+INSERT INTO t1_content VALUES(27,'ENABLE RTREE','X','BINARY');
+INSERT INTO t1_content VALUES(26,'ENABLE RTREE','Y','NOCASE');
+INSERT INTO t1_content VALUES(25,'ENABLE RTREE','X','RTRIM');
+INSERT INTO t1_content VALUES(24,'ENABLE MEMSYS5','X','BINARY');
+INSERT INTO t1_content VALUES(23,'ENABLE MEMSYS5','X','NOCASE');
+INSERT INTO t1_content VALUES(22,'ENABLE MEMSYS5','X','RTRIM');
+INSERT INTO t1_content VALUES(21,'ENABLE JSON1','X','BINARY');
+INSERT INTO t1_content VALUES(20,'ENABLE JSON1','X','NOCASE');
+INSERT INTO t1_content VALUES(18,'ENABLE GEOPOLY','X','BINARY');
+INSERT INTO t1_content VALUES(17,'EOABLE GEOPOLY','X','NOCQSE');
+INSERT INTO t1_content VALUES(16,'ENABLE GEOPOLY','X','RTRIM');
+INSERT INTO t1_content VALUES(15,'ENABLE FTS5','X','BINARY');
+INSERT INTO t1_content VALUES(14,'ENABLE FTS5','X','NOCASE');
+CREATE TABLE IF NOT EXISTS 't1_docsize'(id INTEGER PRIMARY KEY, sz BLOB);
+CREATE TABLE IF NOT EXISTS 't1_config'(k PRIMARY KEY, v) WITHOUT ROWID;
+CREATE TABLE t2(x);
+INSERT INTO t2 VALUES('optimize');
+INSERT INTO t2 VALUES('rebuild');
+INSERT INTO t2 VALUES('integrity-check');
+PRAGMA writable_schema=OFF;
+COMMIT;
+} {}
+
+do_catchsql_test 51.1 {
+  SELECT max(rowid)==0 FROM t1('e*');
+} {1 {database disk image is malformed}}
+
+#--------------------------------------------------------------------------
+reset_db
+do_test 52.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 40960 pagesize 4096 filename crash-2b92f77ddfe191.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 0a   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 0d 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 00 00 00 0d 0b 6e 00 0f a3 0f 4c   ..........n....L
+|    112: 0e e1 0e 81 0e 24 0d cc 0d 72 0d 1b 0c b0 0c 50   .....$...r.....P
+|    128: 0b f8 0b b3 0b 6e 00 00 00 00 00 00 00 00 00 00   .....n..........
+|   2912: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 43 0d   ..............C.
+|   2928: 06 17 11 11 08 75 74 61 62 6c 65 74 34 74 34 43   .....utablet4t4C
+|   2944: 52 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41   REATE VIRTUAL TA
+|   2960: 42 4c 45 20 74 34 20 55 53 49 4e 47 20 66 74 73   BLE t4 USING fts
+|   2976: 35 76 6f 63 61 62 28 27 74 32 27 2c 20 27 72 6f   5vocab('t2', 'ro
+|   2992: 77 27 29 43 0c 06 17 11 11 08 75 74 61 62 6c 65   w')C......utable
+|   3008: 74 33 74 33 43 52 45 41 54 45 20 56 49 52 54 55   t3t3CREATE VIRTU
+|   3024: 41 4c 20 54 41 42 4c 45 20 74 33 20 55 53 49 4e   AL TABLE t3 USIN
+|   3040: 47 20 66 74 73 35 76 6f 63 61 62 28 27 74 31 27   G fts5vocab('t1'
+|   3056: 2c 20 27 72 6f 77 27 29 56 0b 06 17 1f 1f 01 7d   , 'row')V.......
+|   3072: 74 61 62 6c 75 74 32 5f 63 6f 6e 66 69 67 74 32   tablut2_configt2
+|   3088: 5f 63 6f 6e 66 69 67 0a 43 52 45 41 54 45 20 54   _config.CREATE T
+|   3104: 41 42 4c 45 20 27 74 32 5f 63 6f 6e 66 69 67 27   ABLE 't2_config'
+|   3120: 28 6b 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   (k PRIMARY KEY, 
+|   3136: 76 29 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44   v) WITHOUT ROWID
+|   3152: 5e 0a 07 17 21 21 01 81 07 74 61 62 6c 65 74 32   ^...!!...tablet2
+|   3168: 5f 63 6f 6e 74 65 6e 74 74 32 5f 63 6f 6e 74 65   _contentt2_conte
+|   3184: 6e 74 09 43 52 45 41 54 45 20 54 41 42 4c 45 20   nt.CREATE TABLE 
+|   3200: 27 74 32 5f 63 6f 6e 74 65 6e 74 27 28 69 64 20   't2_content'(id 
+|   3216: 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59 20   INTEGER PRIMARY 
+|   3232: 4b 45 59 2c 20 63 30 2c 20 63 31 2c 20 63 32 29   KEY, c0, c1, c2)
+|   3248: 69 09 07 17 19 19 01 81 2d 74 61 62 6c 65 74 32   i.......-tablet2
+|   3264: 5f 69 64 78 74 32 5f 69 64 78 08 43 52 45 41 54   _idxt2_idx.CREAT
+|   3280: 45 20 54 41 42 4c 45 20 27 74 32 5f 69 64 78 27   E TABLE 't2_idx'
+|   3296: 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20 70 67   (segid, term, pg
+|   3312: 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45 59 28   no, PRIMARY KEY(
+|   3328: 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20 57 49   segid, term)) WI
+|   3344: 54 48 4f 55 54 20 52 4f 57 49 44 55 08 07 17 1b   THOUT ROWIDU....
+|   3360: 1b 01 81 01 74 61 62 6c 65 74 32 5f 64 61 74 61   ....tablet2_data
+|   3376: 74 32 5f 64 61 74 61 07 43 52 45 41 54 45 20 54   t2_data.CREATE T
+|   3392: 41 42 4c 45 20 27 74 32 5f 64 61 74 61 27 28 69   ABLE 't2_data'(i
+|   3408: 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52   d INTEGER PRIMAR
+|   3424: 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c 4f   Y KEY, block BLO
+|   3440: 42 29 58 07 07 17 11 11 08 81 1d 74 61 62 6c 65   B)X........table
+|   3456: 74 32 74 32 43 52 45 41 54 45 20 56 49 52 54 55   t2t2CREATE VIRTU
+|   3472: 41 4c 20 54 41 42 4c 45 20 74 32 20 55 53 49 4e   AL TABLE t2 USIN
+|   3488: 47 20 66 74 73 35 28 27 61 27 2c 5b 62 5d 2c 22   G fts5('a',[b],.
+|   3504: 63 22 2c 64 65 74 61 69 6c 3d 6e 6f 6e 65 2c 63   c.,detail=none,c
+|   3520: 6f 6c 75 6d 6e 73 69 7a 65 3d 30 29 56 06 06 17   olumnsize=0)V...
+|   3536: 1f 1f 01 7d 74 61 62 6c 65 74 31 5f 63 6f 6e 66   ....tablet1_conf
+|   3552: 69 67 74 31 5f 63 6f 6e 66 69 67 06 43 52 45 41   igt1_config.CREA
+|   3568: 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63 6f 6e   TE TABLE 't1_con
+|   3584: 66 69 67 27 28 6b 20 50 52 49 4d 41 52 59 20 4b   fig'(k PRIMARY K
+|   3600: 45 59 2c 20 76 29 20 57 49 54 48 4f 55 54 20 52   EY, v) WITHOUT R
+|   3616: 4f 57 49 44 5b 05 07 17 21 21 01 81 01 74 61 62   OWID[...!!...tab
+|   3632: 6c 65 74 31 5f 64 6f 63 73 69 7a 65 74 31 5f 64   let1_docsizet1_d
+|   3648: e8 63 73 69 7a 65 05 43 52 45 41 54 45 20 54 41   .csize.CREATE TA
+|   3664: 42 4c 45 20 27 74 31 5f 64 6f 63 73 69 7a 65 27   BLE 't1_docsize'
+|   3680: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   (id INTEGER PRIM
+|   3696: 41 52 59 20 4b 45 59 2c 20 73 7a 20 42 4c 4f 42   ARY KEY, sz BLOB
+|   3712: 29 5e 04 07 17 21 21 01 81 07 74 61 62 6c 65 74   )^...!!...tablet
+|   3728: 31 5f 63 6f 6e 74 65 6f 74 74 31 5f 63 6f 6e 74   1_conteott1_cont
+|   3744: 65 6e 74 04 43 52 45 41 54 45 20 54 41 42 4c 45   ent.CREATE TABLE
+|   3760: 20 27 74 31 5f 63 6f 6e 74 65 6e 74 27 28 69 64    't1_content'(id
+|   3776: 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59    INTEGER PRIMARY
+|   3792: 20 4b 45 59 2c 20 63 30 2c 20 63 31 2c 20 63 32    KEY, c0, c1, c2
+|   3808: 29 69 03 07 17 19 19 01 81 2d 74 61 62 6c 65 74   )i.......-tablet
+|   3824: 31 5f 69 64 78 74 31 5f 69 64 78 03 43 52 45 41   1_idxt1_idx.CREA
+|   3840: 54 45 20 54 41 42 4c 45 20 27 74 31 5f 69 64 78   TE TABLE 't1_idx
+|   3856: 27 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20 70   '(segid, term, p
+|   3872: 67 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45 59   gno, PRIMARY KEY
+|   3888: 28 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20 57   (segid, term)) W
+|   3904: 49 54 48 4f 55 54 20 52 4f 57 49 44 55 02 07 17   ITHOUT ROWIDU...
+|   3920: 1b 1b 01 81 01 74 61 62 6c 65 74 31 5f 64 61 74   .....tablet1_dat
+|   3936: 61 74 31 5f 64 61 74 61 02 43 52 45 41 54 45 20   at1_data.CREATE 
+|   3952: 54 41 42 4c 45 20 27 74 31 5f 64 61 74 61 27 28   TABLE 't1_data'(
+|   3968: 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41   id INTEGER PRIMA
+|   3984: 52 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c   RY KEY, block BL
+|   4000: 4f 42 29 5b 01 07 17 11 11 08 81 23 74 61 62 6c   OB)[.......#tabl
+|   4016: 65 74 31 74 31 43 52 45 41 54 45 20 56 49 52 54   et1t1CREATE VIRT
+|   4032: 55 41 4c 20 54 41 42 4c 45 20 74 31 20 55 53 49   UAL TABLE t1 USI
+|   4048: 4e 47 20 66 74 73 35 28 61 2c 62 20 75 6e 69 6e   NG fts5(a,b unin
+|   4064: 64 65 78 65 64 2c 63 2c 74 6f 6b 65 6e 69 7a 65   dexed,c,tokenize
+|   4080: 3d 22 70 6f 72 74 65 72 20 61 73 63 69 69 22 29   =.porter ascii.)
+| page 2 offset 4096
+|      0: 0d 0f 68 00 05 0f 13 00 0f e6 0f 13 0f a8 0f 7c   ..h............|
+|     16: 0f 2a 00 00 00 00 00 00 00 00 00 00 00 00 00 00   .*..............
+|   3856: 00 00 00 15 0a 03 00 30 00 00 00 00 01 03 03 00   .......0........
+|   3872: 03 01 01 01 02 01 01 03 01 01 37 8c 80 80 80 80   ..........7.....
+|   3888: 01 03 00 74 00 00 00 2e 02 30 61 03 02 02 01 01   ...t.....0a.....
+|   3904: 62 03 02 03 01 01 63 03 02 04 01 01 67 03 08 c1   b.....c.....g...
+|   3920: 02 02 01 01 68 03 06 01 02 03 01 01 69 03 06 01   ....h.......i...
+|   3936: 02 04 04 06 06 06 08 08 0f ef 00 14 2a 00 00 00   ............*...
+|   3952: 00 01 02 02 00 02 01 01 01 02 01 01 25 88 80 80   ............%...
+|   3968: 80 80 01 03 00 50 00 00 00 1f 02 30 67 02 08 02   .....P.....0g...
+|   3984: 01 02 02 01 01 68 02 08 03 01 02 03 01 01 69 02   .....h........i.
+|   4000: 08 04 01 02 04 04 09 09 37 84 80 80 80 80 01 03   ........7.......
+|   4016: 00 74 00 14 00 2e 02 30 61 01 02 02 01 01 62 01   .t.....0a.....b.
+|   4032: 02 03 01 01 63 01 02 04 01 01 67 01 06 01 02 02   ....c.....g.....
+|   4048: 01 01 68 01 06 01 02 03 01 01 69 01 06 01 02 03   ..h.......i.....
+|   4064: f4 06 06 06 08 08 07 01 03 00 14 03 09 00 09 00   ................
+|   4080: 00 00 11 24 00 00 00 00 01 01 01 00 01 00 01 01   ...$............
+| page 3 offset 8192
+|      0: 0a 00 00 00 03 0f ec 00 0f fa 0f f3 0f ec 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 00 06 04 01 0c   ................
+|   4080: 01 03 02 06 04 01 0c 01 02 02 05 04 09 0c 01 02   ................
+| page 4 offset 12288
+|      0: 0d 00 00 00 03 0f be 00 0f ea 0f d4 0f be 00 00   ................
+|     16: 00 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 14 03   ................
+|   4032: 05 00 17 17 17 61 20 62 20 63 67 20 68 20 69 67   .....a b cg h ig
+|   4048: 20 68 20 69 14 02 05 00 17 17 17 67 20 68 20 69    h i.......g h i
+|   4064: 61 20 62 20 63 67 20 68 20 69 14 01 05 00 17 17   a b cg h i......
+|   4080: 17 61 20 62 20 63 64 20 65 20 66 67 20 68 20 69   .a b cd e fg h i
+| page 5 offset 16384
+|      0: 0d 00 00 00 03 0f e8 00 0f f8 0f f0 0f e8 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 06 03 03 00 12 03 00 03   ................
+|   4080: 06 02 03 00 12 03 00 03 06 01 04 00 12 03 00 03   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 7 offset 24576
+|      0: 0d 00 00 00 03 0f 9e 00 0f e6 0f ef 0f 9e 00 00   ................
+|   3968: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 41 84   ..............A.
+|   3984: 80 80 80 80 01 04 00 81 06 00 00 00 34 02 30 61   ............4.0a
+|   4000: 01 01 01 01 01 62 01 01 01 01 01 63 01 01 01 01   .....b.....c....
+|   4016: 01 64 01 01 01 65 01 01 01 66 01 01 01 67 01 01   .d...e...f...g..
+|   4032: 01 01 01 68 01 01 01 01 01 69 01 01 01 04 06 06   ...h.....i......
+|   4048: 06 04 04 04 06 06 07 01 03 00 14 03 09 09 09 0f   ................
+|   4064: 0a 03 00 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+|   4080: 0a 00 00 00 01 0f fa 00 0f fa 00 00 00 00 00 00   ................
+| page 8 offset 28672
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
+| page 9 offset 32768
+|      0: 0d 00 00 00 03 0f be 00 0f ea 0f d4 0f be 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 14 03   ................
+|   4032: 05 00 17 17 17 61 20 62 20 63 67 20 68 20 69 67   .....a b cg h ig
+|   4048: 20 68 20 69 14 02 05 00 17 17 17 67 20 68 20 69    h i.......g h i
+|   4064: 61 20 62 20 63 67 20 68 20 69 14 01 05 00 17 17   a b cg h i......
+|   4080: 17 61 20 62 20 63 64 20 65 20 66 67 20 68 20 69   .a b cd e fg h i
+| page 10 offset 36864
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| end crash-2b92f77ddfe191.db
+}]} {}
+
+do_catchsql_test 52.1 {
+  SELECT fts5_decode(id, block) FROM t1_data;
+} {/*malformed database schema*/}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 53.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 24576 pagesize 4096 filename crash-dbe9b7614da103.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 06   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 06 00 00 00 04   ................
+|     96: 00 00 00 00 0d 00 00 00 06 0e 0f 00 0f aa 0f 53   ...............S
+|    112: 0e e8 0e 8b 0e 33 0e 0f 00 00 00 00 00 00 00 00   .....3..........
+|   3584: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 22   ................
+|   3600: 06 06 17 11 11 01 31 74 61 62 6c 65 62 62 62 62   ......1tablebbbb
+|   3616: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 62 62   .CREATE TABLE bb
+|   3632: 28 61 29 56 05 06 17 1f 1f 01 7d 74 61 62 6c 65   (a)V.......table
+|   3648: 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63 6f 6e 66   t1_configt1_conf
+|   3664: 69 67 05 43 52 45 41 54 45 20 54 41 42 4c 45 20   ig.CREATE TABLE 
+|   3680: 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b 20 50 52   't1_config'(k PR
+|   3696: 49 4d 41 52 59 20 4b 45 59 2c 20 76 29 20 57 49   IMARY KEY, v) WI
+|   3712: 54 48 4f 55 54 20 52 4f 57 49 44 5b 04 07 17 21   THOUT ROWID[...!
+|   3728: 21 01 81 01 74 61 62 6c 65 74 31 5f 64 6f 63 73   !...tablet1_docs
+|   3744: 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65 04 43 52   izet1_docsize.CR
+|   3760: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 64   EATE TABLE 't1_d
+|   3776: 6f 63 73 69 7a 65 27 28 69 64 20 49 4e 54 45 47   ocsize'(id INTEG
+|   3792: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
+|   3808: 73 7a 20 42 4c 4f 42 29 69 03 07 17 19 19 01 81   sz BLOB)i.......
+|   3824: 2d 74 61 62 6c 65 74 31 5f 69 64 78 74 31 5f 69   -tablet1_idxt1_i
+|   3840: 64 78 03 43 52 45 41 54 45 20 54 41 42 4c 45 20   dx.CREATE TABLE 
+|   3856: 27 74 31 5f 69 64 78 27 28 73 65 67 69 64 2c 20   't1_idx'(segid, 
+|   3872: 74 65 72 6d 2c 20 70 67 6e 6f 2c 20 50 52 49 4d   term, pgno, PRIM
+|   3888: 41 52 59 20 4b 45 59 28 73 65 67 69 64 2c 20 74   ARY KEY(segid, t
+|   3904: 65 72 6d 29 29 20 57 49 54 48 4f 55 54 20 52 4f   erm)) WITHOUT RO
+|   3920: 57 49 44 55 02 07 17 1b 1b 01 81 01 74 61 62 6b   WIDU........tabk
+|   3936: 65 74 31 5f 64 61 74 61 74 31 5f 64 61 74 61 02   et1_datat1_data.
+|   3952: 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74 31   CREATE TABLE 't1
+|   3968: 5f 64 61 74 61 27 28 69 64 20 49 4e 54 45 47 45   _data'(id INTEGE
+|   3984: 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 62   R PRIMARY KEY, b
+|   4000: 6c 6f 63 6b 20 42 4c 4f 42 29 54 01 07 17 10 11   lock BLOB)T.....
+|   4016: 08 81 15 74 61 62 6c 65 74 31 74 31 43 52 45 41   ...tablet1t1CREA
+|   4032: 54 45 20 56 49 52 54 55 41 4c 20 54 41 42 4c 45   TE VIRTUAL TABLE
+|   4048: 20 74 31 20 55 53 49 4e 47 20 66 74 73 35 28 61    t1 USING fts5(a
+|   4064: 2c 62 2c 70 72 65 66 69 78 3d 22 31 2c 32 2c 33   ,b,prefix=.1,2,3
+|   4080: 2c 34 22 2c 20 63 6f 6e 74 65 6e 74 3d 22 22 29   ,4., content=..)
+| page 2 offset 4096
+|      0: 0d 0b 6a 00 37 09 4c 02 0f e7 09 4c 0f c6 0f a4   ..j.7.L....L....
+|     16: 0f 88 0f 6d 0f 4b 0f 2c 0f 0e 0e ec 0e cd 0e 2a   ...m.K.,.......*
+|     32: 0e 8e 0e 6c 0e 4b 0e 29 0e 08 0d e6 0d c4 0d b5   ...l.K.)........
+|     48: 0d 97 0d 76 0d 54 0e 31 0d 15 0c f3 0c d3 0c b5   ...v.T.1........
+|     64: 0c 95 0c 73 0c 54 0c 32 0c 10 0b ee 0b cc 0b b0   ...s.T.2........
+|     80: 0b 8d 0b 7e 0b 48 0b 2e 0b 0b 0a ef 0a cc 0a ad   ...~.H..........
+|     96: 0a 8c 0a 6d 0a 4d 0a 2b 0a 0c 09 ec 09 ca 09 a8   ...m.M.+........
+|    112: 09 86 09 63 0f f1 00 00 00 00 00 00 00 00 00 00   ...c............
+|   2368: 00 00 00 00 00 00 00 00 00 00 00 00 15 0a 03 00   ................
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+|   2400: 03 01 11 1c 8c 80 80 80 80 10 03 00 3e 00 00 00   ............>...
+|   2416: 17 01 05 05 34 74 61 62 6c 03 02 03 01 04 77 68   ....4tabl.....wh
+|   2432: 65 72 03 02 06 09 1b 8c 80 80 80 80 0f 03 00 3c   er.............<
+|   2448: 00 00 00 16 05 34 66 74 73 34 03 02 02 01 04 6e   .....4fts4.....n
+|   2464: 75 6d 62 03 06 01 04 09 1b 8c 80 80 80 80 0e 03   umb.............
+|   2480: 00 3c 00 00 00 16 04 33 74 68 65 03 06 01 01 04   .<.....3the.....
+|   2496: 01 03 77 68 65 03 02 04 04 0a 1b 8c 80 80 80 80   ..whe...........
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+|   2528: 01 05 01 03 74 61 62 03 02 03 04 0a 19 8c 80 80   ....tab.........
+|   2544: 80 80 0c 03 00 38 00 00 00 14 03 32 77 68 03 02   .....8.....2wh..
+|   2560: 04 00 04 33 66 74 73 03 02 02 04 07 18 8c 80 80   ...3fts.........
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+|   2592: 03 02 01 68 03 06 01 01 04 04 07 1b 8c 80 80 80   ...h............
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+|   2784: 06 01 01 04 01 05 77 68 65 72 65 03 02 04 0a 15   ......where.....
+|   2800: 8c 80 80 80 80 04 03 00 30 00 00 00 11 01 01 06   ........0.......
+|   2816: 06 30 74 61 62 6c 65 03 02 03 07 1c 8c 80 80 80   .0table.........
+|   2832: 80 03 03 00 3e 00 00 00 17 07 30 6e 75 6d 62 65   ....>.....0numbe
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+|   3024: 80 80 0f 03 00 3c 00 00 00 16 04 04 33 72 6f 77   .....<......3row
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+|   3808: 02 02 02 01 74 01 06 01 01 04 04 07 1b 84 80 80   ....t...........
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+|   3872: 06 01 01 02 01 01 70 01 02 05 04 08 18 84 80 80   ......p.........
+|   3888: 80 80 06 03 00 36 00 00 00 03 02 31 65 01 02 03   .....6.....1e...
+|   3904: 01 01 66 02 08 02 01 01 04 04 06 1b 84 80 80 80   ..f.............
+|   3920: 80 05 03 00 3c 00 00 00 16 05 30 74 65 72 6d 01   ....<.....0term.
+|   3936: 02 04 02 02 68 65 01 06 01 01 03 04 09 14 84 80   ....he..........
+|   3952: 80 80 80 04 03 00 2e 00 00 00 10 06 30 74 61 62   ............0tab
+|   3968: 6c 65 01 06 01 01 05 04 15 84 80 80 80 80 03 03   le..............
+|   3984: 00 30 00 00 00 11 02 08 30 70 72 65 73 65 6e 74   .0......0present
+|   4000: 01 02 05 05 1b 84 80 80 80 80 02 03 00 3c 00 00   .............<..
+|   4016: 00 16 04 30 66 74 73 01 06 01 01 04 01 02 69 6e   ...0fts.......in
+|   4032: 01 06 01 01 04 0a 1a 84 80 80 80 80 01 03 00 3a   ...............:
+|   4048: 00 00 00 15 05 30 65 61 63 68 01 02 03 01 03 66   .....0each.....f
+|   4064: 6f 72 01 02 02 04 09 06 01 03 00 12 03 0b 0f 00   or..............
+|   4080: 00 08 8c 80 80 80 80 11 03 00 16 00 00 00 05 04   ................
+| page 3 offset 8192
+|      0: 0a 00 00 00 32 0e 4f 00 0f fa 0f f1 0f e9 0f e1   ....2.O.........
+|     16: 0f d8 0f d1 0f c9 0f c1 0f b9 0f b1 0f a9 0f a0   ................
+|     32: 0f 98 0f 90 0f 87 0f 80 0f 78 0f 71 0f 68 0f 5f   .........x.q.h._
+|     48: 0f 56 0f 4d 0f 41 0f 38 0f 2f 0f 26 0f 1d 0f 13   .V.M.A.8./.&....
+|     64: 0f 0a 0f 01 0e f7 0e ee 0e e6 0e dd 0e d6 0e cd   ................
+|     80: 0e c3 0e ba 0e b0 0e a8 0e 9f 0e 86 0e 8e 0e 85   ................
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+|   3680: 09 04 01 12 01 03 33 74 68 1c 08 04 01 10 01 03   ......3th.......
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+|   3728: 01 0e 01 03 32 12 08 04 01 10 01 03 31 74 10 07   ....2.......1t..
+|   3744: f4 01 10 01 03 31 6e 0e 07 04 01 0e 01 03 31 0c   .....1n.......1.
+|   3760: 09 04 01 12 01 03 30 74 68 0a 08 04 01 10 01 03   ......0th.......
+|   3776: 30 74 08 09 04 01 12 01 03 30 6e 75 06 08 04 01   0t.......0nu....
+|   3792: 10 01 03 30 6e 04 06 04 01 0c 01 03 02 08 04 01   ...0n...........
+|   3808: 10 01 02 34 72 22 07 04 01 0e 01 02 34 20 08 04   ...4r.......4 ..
+|   3824: 01 10 01 02 33 72 1e 09 04 01 12 01 02 33 61 72   ....3r.......3ar
+|   3840: 1c 08 04 01 10 01 02 32 74 1a 08 04 01 10 01 02   .......2t.......
+|   3856: 32 69 18 09 04 01 12 01 02 32 61 72 16 08 04 01   2i.......2ar....
+|   3872: 10 01 02 31 74 14 08 04 01 10 01 02 31 6e 12 08   ...1t.......1n..
+|   3888: 04 01 10 01 02 31 62 10 08 04 01 10 01 02 31 32   .....1b.......12
+|   3904: 0e 0b 04 01 16 01 02 30 74 68 65 72 0c 08 04 01   .......0ther....
+|   3920: 10 01 02 30 74 0a 08 04 01 10 01 02 30 6e 08 08   ...0t.......0n..
+|   3936: 04 01 10 01 02 30 62 06 08 04 01 10 01 02 30 61   .....0b.......0a
+|   3952: 04 06 04 01 0c 01 02 02 07 04 09 10 01 34 74 22   .............4t.
+|   3968: 06 04 09 0e 01 34 20 08 04 09 12 01 33 74 65 1e   .....4 .....3te.
+|   3984: 07 04 09 10 01 33 70 1c 07 04 09 10 01 33 66 1a   .....3p......3f.
+|   4000: 08 04 09 12 01 32 74 68 18 07 04 09 10 01 32 74   .....2th......2t
+|   4016: 16 07 04 09 0f 01 32 69 14 07 04 09 10 01 32 66   ......2i......2f
+|   4032: 12 07 04 09 00 01 31 74 10 07 04 09 10 01 31 69   ......1t......1i
+|   4048: 0e 06 04 09 0e 01 31 0c 08 04 09 12 01 33 44 65   ......1......3De
+|   4064: 0a 07 04 09 10 01 30 74 08 07 04 09 10 01 30 75   ......0t......0u
+|   4080: 26 08 04 09 12 01 30 66 74 04 05 04 09 0c 01 02   &.....0ft.......
+| page 4 offset 12288
+|      0: 0d 00 00 00 03 0f eb 00 0f f9 0f f2 0f eb 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 05 03 03 00 10   ................
+|   4080: 03 05 05 02 03 00 10 04 06 05 01 03 00 10 04 04   ................
+| page 5 offset 16384
+|      0: 0a 00 00 00 02 0f eb 00 0f eb 0f f4 00 00 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 08 03 15 01 70   ...............p
+|   4080: 67 73 7a 08 0b 03 1b 01 76 65 72 73 69 6f 6e 04   gsz.....version.
+| page 6 offset 20480
+|      0: 0d 00 00 00 03 0f f2 00 0f 00 00 00 00 00 00 00   ................
+|   4080: 00 00 03 03 02 01 03 03 02 02 01 02 02 01 0c e9   ................
+| end crash-dbe9b7614da103.db
+}]} {}
+
+do_catchsql_test 53.1 {
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x<>1 FROM c WHERE x<10)
+    INSERT INTO t1(a) SELECT randomblob(3000) FROM c;
+} {/*malformed database schema*/}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 54.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 24576 pagesize 4096 filename crash-03a1855566d9ae.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 06   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 06 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 00 00 00 06 0e 0f 00 0f aa 0f 53   ...............S
+|    112: 0e e8 0e 8b 0e 33 0e 0f 00 00 00 00 00 00 00 00   .....3..........
+|   3584: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 22   ................
+|   3600: 06 06 17 11 11 01 31 74 61 62 6c 65 62 62 62 62   ......1tablebbbb
+|   3616: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 62 62   .CREATE TABLE bb
+|   3632: 28 61 29 56 05 06 17 1f 1f 01 7d 74 61 62 6c 65   (a)V.......table
+|   3648: 74 31 5f 63 2a 6e 66 69 67 74 31 5f 63 6f 6e 66   t1_c*nfigt1_conf
+|   3664: 69 67 05 43 52 45 41 54 45 20 54 41 42 4c 45 20   ig.CREATE TABLE 
+|   3680: 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b 20 50 52   't1_config'(k PR
+|   3696: 49 4d 41 52 59 20 4b 45 59 2c 20 76 29 20 57 49   IMARY KEY, v) WI
+|   3712: 54 48 4f 55 54 20 52 4f 57 49 44 5b 04 07 17 21   THOUT ROWID[...!
+|   3728: 21 01 81 01 74 61 62 6c 65 74 31 5f 64 6f 73 73   !...tablet1_doss
+|   3744: 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65 04 43 52   izet1_docsize.CR
+|   3760: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 64   EATE TABLE 't1_d
+|   3776: 6f 63 73 69 7a 65 27 28 69 64 20 49 4e 54 45 47   ocsize'(id INTEG
+|   3792: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
+|   3808: 73 7a 20 42 4c 4f 42 29 69 03 07 17 19 19 01 81   sz BLOB)i.......
+|   3824: 2d 74 61 62 6c 65 74 31 5f 69 64 78 74 31 5f 69   -tablet1_idxt1_i
+|   3840: 64 78 03 43 52 45 41 54 45 20 54 41 42 4c 45 20   dx.CREATE TABLE 
+|   3856: 27 74 31 5f 69 64 78 27 28 73 65 67 69 64 2c 20   't1_idx'(segid, 
+|   3872: 74 65 72 6d 2c 20 70 67 6e 6f 2c 20 50 52 49 4d   term, pgno, PRIM
+|   3888: 41 52 59 20 4b 45 59 28 73 65 67 69 64 2c 20 74   ARY KEY(segid, t
+|   3904: 65 72 6d 29 29 20 57 49 54 48 4f 55 54 20 52 4f   erm)) WITHOUT RO
+|   3920: 57 49 44 55 02 07 17 1b 1b 01 81 01 74 61 62 6c   WIDU........tabl
+|   3936: 65 74 31 5f 64 61 74 61 74 31 5f 64 61 74 61 02   et1_datat1_data.
+|   3952: 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74 31   CREATE TABLE 't1
+|   3968: 5f 64 61 74 61 27 28 69 64 20 49 4e 54 45 47 45   _data'(id INTEGE
+|   3984: 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 62   R PRIMARY KEY, b
+|   4000: 6c 6f 63 6b 20 42 4c 4f 42 29 54 01 07 17 11 11   lock BLOB)T.....
+|   4016: 08 81 15 74 61 62 6c 65 74 31 74 31 43 52 45 41   ...tablet1t1CREA
+|   4032: 54 45 20 56 49 52 54 55 41 4c 20 54 41 42 4c 45   TE VIRTUAL TABLE
+|   4048: 20 74 31 20 55 53 49 4e 47 20 66 74 73 35 28 61    t1 USING fts5(a
+|   4064: 2c 62 2c 70 72 65 66 69 78 3d 22 32 2c 32 2c 33   ,b,prefix=.2,2,3
+|   4080: 2c 34 22 2c 20 63 6f 6e 74 65 6e 74 3d 22 22 29   ,4., content=..)
+| page 2 offset 4096
+|      0: 0d 0b 6a 00 37 09 4c 02 0f e7 09 4c 0f c6 0f a4   ..j.7.L....L....
+|     16: 0f 88 0f 6d 0f 4b 0f 2c 0f 0e 0e ec 0e cd 0e ad   ...m.K.,........
+|     32: 0e 8e 0e 6c 0e 4b 0e 29 0e 08 0d e6 0d c4 0d b5   ...l.K.)........
+|     48: 0d 97 0d 76 0d 54 0d 31 0d 15 0c f3 0c d3 0c b5   ...v.T.1........
+|     64: 0c 95 0c 73 0c 54 0c 32 0c 10 0b ee 0b cd 0b b0   ...s.T.2........
+|     80: 0b 8d 0b 7e 0b 48 0b 2e 0b 0b 0a ef 0a cc 0a ad   ...~.H..........
+|     96: 0a 8c 0a 6d 0a 4d 0a 2b 0a 0c 09 ec 09 ca 09 a8   ...m.M.+........
+|    112: 09 86 09 63 0f f1 00 00 00 00 00 00 00 00 00 00   ...c............
+|   2368: 00 00 00 00 00 00 00 00 00 00 00 00 15 0a 03 00   ................
+|   2384: 30 00 00 00 01 01 03 35 00 03 01 01 12 02 01 12   0......5........
+|   2400: 03 01 11 1c 8c 80 80 80 80 10 03 00 3e 00 00 00   ............>...
+|   2416: 17 01 05 05 34 74 61 62 6c 03 02 03 01 04 77 68   ....4tabl.....wh
+|   2432: 65 72 03 02 06 09 1b 8c 80 80 80 80 0f 03 00 3c   er.............<
+|   2448: 00 00 00 16 05 34 66 74 73 34 03 02 02 01 04 6e   .....4fts4.....n
+|   2464: 75 6d 62 03 06 01 04 09 1b 8c 80 80 80 80 0e 03   umb.............
+|   2480: 00 3c 00 00 00 16 04 33 74 68 65 03 06 01 01 04   .<.....3the.....
+|   2496: 01 03 77 68 65 03 02 04 04 0a 1b 8c 80 80 80 80   ..whe...........
+|   2512: 0d 03 00 3c 00 00 00 16 04 33 6e 75 6d 03 06 01   ...<.....3num...
+|   2528: 01 05 01 03 74 61 62 05 62 03 04 0a 19 8c 80 80   ....tab.b.......
+|   2544: 80 80 0c 03 00 38 00 00 00 14 03 39 a7 68 03 02   .....8.....9.h..
+|   2560: 04 10 04 33 66 74 73 03 02 02 04 07 18 8c 80 80   ...3fts.........
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+|   2592: 03 02 01 68 03 06 01 01 04 04 07 1b 8c 80 80 80   ...h............
+|   2608: 80 0a 03 00 3c 00 00 00 16 03 32 6e 75 03 06 01   ....<.....2nu...
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+|   2640: 80 80 80 09 03 00 38 00 00 00 14 03 32 66 74 03   ......8.....2ft.
+|   2656: 02 02 01 02 69 73 03 06 01 01 03 04 07 18 8c 80   ....is..........
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+|   2704: 80 80 07 03 00 3a ff 00 00 15 02 31 6e 03 08 01   .....:.....1n...
+|   2720: 01 02 05 01 01 6f 03 06 01 01 06 04 09 18 8c 80   .....o..........
+|   2736: 80 80 80 06 03 00 36 00 00 00 13 04 02 31 66 03   ......6......1f.
+|   2752: 02 02 01 01 69 03 06 01 01 03 05 06 1c 8c 80 80   ....i...........
+|   2768: 80 80 05 03 00 3e 00 00 00 17 04 30 74 68 65 03   .....>.....0the.
+|   2784: 06 01 01 04 01 05 77 68 65 72 65 03 02 04 0a 15   ......where.....
+|   2800: 8c 80 80 80 80 04 03 00 30 00 00 00 11 01 01 06   ........0.......
+|   2816: 06 30 74 61 62 6c cc 03 02 03 07 1c 8c 80 80 80   .0tabl..........
+|   2832: 80 03 03 00 3e 00 00 00 17 07 30 6e 75 6d 62 65   ....>.....0numbe
+|   2848: 72 03 06 01 01 05 01 02 6f 66 03 06 04 0d 13 8c   r.......of......
+|   2864: 80 80 80 80 02 03 00 2c 00 00 00 0f 01 01 03 02   .......,........
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+|   2912: 02 02 01 02 69 73 03 06 04 0c 00 00 00 14 2a 00   ....is........*.
+|   2928: 00 00 01 01 02 24 00 02 01 01 12 02 01 12 08 88   .....$..........
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+|   2976: 73 02 06 01 01 05 01 04 74 68 65 72 02 02 04 0b   s.......ther....
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+|   3024: 80 80 0f 03 00 3c 00 00 00 16 04 04 33 72 6f 77   .....<......3row
+|   3040: 02 06 01 01 05 01 03 74 68 65 02 08 05 0a 1b 88   .......the......
+|   3056: 80 80 80 80 0e 03 05 0c 00 00 00 16 01 01 02 04   ................
+|   3072: 33 61 72 65 02 02 03 01 03 62 65 74 02 02 07 08   3are.....bet....
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+|   3104: 84 68 02 08 02 01 01 07 00 04 33 61 6e 64 02 06   .h........3and..
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+|   3136: 03 32 69 6e 02 06 01 01 06 01 02 72 6f 02 06 01   .2in.......ro...
+|   3152: 01 05 04 09 18 88 80 80 80 80 0b 03 00 36 00 00   .............6..
+|   3168: 00 13 02 03 32 61 72 02 02 03 01 02 62 65 02 02   ....2ar.....be..
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+|   3232: 00 00 14 02 31 6e 02 06 01 01 03 01 01 72 02 06   ....1n.......r..
+|   3248: 01 01 05 04 08 17 88 80 80 80 80 08 03 00 34 00   ..............4.
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+|   3328: 16 06 30 74 68 65 72 65 02 12 02 00 02 31 31 02   ..0there.....11.
+|   3344: 06 11 01 04 0a 15 88 80 80 80 80 05 03 00 30 00   ..............0.
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+|   3376: 07 1c 88 80 80 80 80 04 03 00 3e 00 00 00 17 01   ..........>.....
+|   3392: 01 06 02 30 6e 02 06 01 01 03 01 04 72 6f 77 73   ...0n.......rows
+|   3408: 02 06 07 08 1b 88 80 80 80 80 03 03 00 3c 00 00   .............<..
+|   3424: 00 16 08 30 62 65 74 77 65 65 6e 02 02 04 01 02   ...0between.....
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+|   3584: 72 65 73 01 02 05 04 09 1a 84 80 80 80 80 0f 03   res.............
+|   3600: 00 3a 00 00 00 15 04 33 74 65 72 01 02 04 02 02   .:.....3ter.....
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+|   3632: 03 00 3c 00 00 00 16 04 33 70 72 65 01 02 05 01   ..<.....3pre....
+|   3648: 03 74 61 62 01 06 01 01 05 04 08 1a 84 80 80 80   .tab............
+|   3664: 80 0d 03 00 3a 00 00 00 15 04 33 66 6f 72 01 02   ....:.....3for..
+|   3680: 02 02 02 74 73 01 06 01 01 04 04 08 1b 84 80 80   ...ts...........
+|   3696: 80 80 0c 03 00 3c 00 00 00 16 03 32 74 68 01 06   .....<.....2th..
+|   3712: 01 01 03 00 04 33 65 61 63 01 02 03 04 09 18 84   .....3eac.......
+|   3728: 80 80 80 80 0b 03 00 36 00 00 00 13 03 32 74 61   .......6.....2ta
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+|   3760: 80 80 80 0a 03 00 38 00 00 00 14 03 32 69 6e 01   ......8.....2in.
+|   3776: 06 01 01 02 01 02 70 72 01 02 05 04 09 18 84 80   ......pr........
+|   3792: 80 80 80 09 03 00 36 00 00 00 13 03 32 66 6f 01   ......6.....2fo.
+|   3808: 02 02 02 01 74 01 06 01 01 04 04 07 1b 84 80 80   ....t...........
+|   3824: 80 80 08 03 00 3c 00 00 00 16 02 31 74 01 0a 04   .....<.....1t...
+|   3840: 01 01 03 04 00 03 32 65 61 01 02 03 04 0a 17 84   ......2ea.......
+|   3856: 80 80 80 80 07 03 00 34 00 00 00 12 02 31 69 01   .......4.....1i.
+|   3872: 06 01 01 02 de 01 70 01 02 05 04 08 18 84 80 80   ......p.........
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+|   3904: 01 01 66 01 08 02 01 01 04 04 06 1b 84 80 80 80   ..f.............
+|   3920: 80 05 03 00 3c 00 00 00 16 05 30 74 65 72 6d 01   ....<.....0term.
+|   3936: 02 04 02 02 68 65 01 06 01 01 03 04 09 14 84 80   ....he..........
+|   3952: 80 80 80 04 03 00 2e 00 00 00 10 06 30 74 61 62   ............0tab
+|   3968: 6c 65 01 06 01 01 05 04 15 84 80 80 80 80 03 03   le..............
+|   3984: 00 30 00 00 00 11 02 08 30 70 72 65 73 65 6e 74   .0......0present
+|   4000: 01 02 05 05 1b 84 80 80 80 80 02 03 00 3c 00 00   .............<..
+|   4016: 00 16 04 30 66 74 73 01 06 01 01 04 01 02 69 6e   ...0fts.......in
+|   4032: 01 06 01 01 04 0a 1a 84 80 80 80 80 01 03 00 3a   ...............:
+|   4048: 00 00 00 15 05 30 65 61 63 68 00 f2 03 01 03 66   .....0each.....f
+|   4064: 6f 72 01 02 02 04 09 06 01 03 00 12 03 0b 0f 00   or..............
+|   4080: 00 08 8c 80 80 80 80 11 03 00 16 00 00 00 05 04   ................
+| page 3 offset 8192
+|      0: 0a 00 00 00 32 0e 4f 00 0f fa 0f f1 0f e9 0f e1   ....2.O.........
+|     16: 0f d8 0f d1 0f c9 0f c1 0f b9 0f b1 0f a9 0f a0   ................
+|     32: 0f 98 0f 90 0f 87 0f 80 0f 78 0f 71 0f 68 0f 5f   .........x.q.h._
+|     48: 0f 56 0f 4d 0f 41 0f 38 0f 2f 0f 26 0f 1d 0f 13   .V.M.A.8./.&....
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+|   3648: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08   ................
+|   3664: 04 01 10 01 03 34 74 20 07 04 01 0e 01 03 34 1e   .....4t ......4.
+|   3680: 09 04 01 12 01 03 33 74 68 1c 08 04 01 10 01 03   ......3th.......
+|   3696: 33 6e 1a 08 04 01 10 01 03 32 77 18 08 04 01 10   3n.......2w.....
+|   3712: 01 03 32 74 16 08 04 01 10 01 03 32 6e 14 07 04   ..2t.......2n...
+|   3728: 01 0e 01 03 32 12 08 04 01 10 01 03 31 74 10 08   ....2.......1t..
+|   3744: 04 01 10 01 03 31 6e 0e 07 04 01 0e 01 03 31 0c   .....1n.......1.
+|   3760: 09 04 01 12 01 03 30 74 68 0a 08 04 01 10 01 03   ......0th.......
+|   3776: 30 74 08 09 04 01 12 01 03 30 6e 75 06 08 04 01   0t.......0nu....
+|   3792: 10 01 03 30 6e 04 06 04 01 0c 01 05 52 08 04 01   ...0n.......R...
+|   3808: 10 01 02 34 72 22 07 04 01 0e 01 02 34 20 08 04   ...4r.......4 ..
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+|   3856: 32 69 18 09 04 01 12 01 02 32 61 72 16 08 04 01   2i.......2ar....
+|   3872: 10 01 02 31 74 14 08 04 01 10 01 02 31 6e 12 08   ...1t.......1n..
+|   3888: 04 01 10 01 02 31 62 10 08 04 01 10 01 02 31 32   .....1b.......12
+|   3904: 0e 0b 04 01 16 01 02 30 74 68 65 72 0c 08 04 01   .......0ther....
+|   3920: 10 01 02 30 74 0a 08 04 01 10 01 02 30 6e 08 08   ...0t.......0n..
+|   3936: 04 01 10 01 02 30 62 06 08 04 01 10 01 02 30 61   .....0b.......0a
+|   3952: 04 06 04 01 0c 01 02 02 07 04 09 10 01 34 74 22   .............4t.
+|   3968: 06 04 09 0e 01 34 20 08 04 09 12 01 33 74 65 1e   .....4 .....3te.
+|   3984: 07 04 09 10 01 33 70 1c 07 f4 09 11 01 33 66 1a   .....3p......3f.
+|   4000: 08 04 09 12 01 32 74 68 18 07 04 09 10 01 32 e4   .....2th......2.
+|   4016: 16 07 04 09 10 01 32 69 14 07 04 09 10 01 32 66   ......2i......2f
+|   4032: 12 07 04 09 10 01 31 74 10 07 04 09 10 01 31 69   ......1t......1i
+|   4048: 0e 06 04 09 0e 01 31 0c 08 04 09 12 01 30 74 65   ......1......0te
+|   4064: 0a 07 04 09 10 01 30 74 08 07 04 09 10 01 30 70   ......0t......0p
+|   4080: 06 08 04 09 12 01 30 66 74 04 05 04 09 0c 01 02   ......0ft.......
+| page 4 offset 12288
+|      0: 0d 00 00 00 03 0f eb 00 0f f9 0f f2 0f eb 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 05 03 03 00 10   ................
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+| page 5 offset 16384
+|      0: 0a 00 00 00 02 0f eb 00 0f eb 0f f4 00 00 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 08 03 15 01 70   ...............p
+|   4080: 67 73 7a 18 0b 03 1b 01 76 65 72 73 69 6f 6e 04   gsz.....version.
+| page 6 offset 20480
+|      0: 0d 00 00 00 03 0f f2 00 0f fc 0f f7 0f f2 00 00   ................
+|   4080: 00 00 23 03 02 01 03 03 02 02 01 02 02 00 f2 09   ..#.............
+| end crash-03a1855566d9ae.db
+}]} {}
+
+do_catchsql_test 54.1 {
+  SELECT rowid==-1 FROM t1('t*');
+} {/*malformed database schema*/}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 55.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 32768 pagesize 4096 filename crash-b366b5ac0d3887.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 08   .....@  ........
+|     32: 00 00 00 02 00 00 00 05 90 00 00 09 00 00 00 04   ................
+|     96: 00 00 00 00 0d 0f c7 00 07 0d 92 00 0f 8d 0f 36   ...............6
+|    112: 0e cb 0e 6b 0e 0e 0d b6 0d 92 0d 92 00 00 00 00   ...k............
+|   3472: 00 00 22 08 06 17 11 11 01 31 74 61 62 6c 65 74   .........1tablet
+|   3488: 32 74 32 08 43 52 45 41 54 45 20 54 41 42 4c 45   2t2.CREATE TABLE
+|   3504: 20 74 32 28 78 29 56 07 06 17 1f 1f 01 7d 74 61    t2(x)V.......ta
+|   3520: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   blet1_configt1_c
+|   3536: 6f 6e 66 69 67 07 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
+|   3552: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
+|   3568: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
+|   3584: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 06    WITHOUT ROWID[.
+|   3600: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64   ..!!...tablet1_d
+|   3616: 6f 63 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65   ocsizet1_docsize
+|   3632: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
+|   3648: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
+|   3664: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
+|   3680: 59 2c 20 73 7a 20 43 4c 4f 42 29 5e 05 07 17 21   Y, sz CLOB)^...!
+|   3696: 21 01 81 07 74 61 62 6c 65 74 31 5f 63 6f 6e 74   !...tablet1_cont
+|   3712: 65 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 05 43 52   entt1_content.CR
+|   3728: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63   EATE TABLE 't1_c
+|   3744: 6f 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47   ontent'(id INTEG
+|   3760: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
+|   3776: 63 30 2c 20 63 31 2c 20 63 32 29 69 04 07 17 19   c0, c1, c2)i....
+|   3792: 19 01 81 2d 74 61 62 6c 65 74 32 5f 69 64 78 74   ...-tablet2_idxt
+|   3808: 31 5f 69 64 78 04 43 52 45 41 54 45 20 54 41 42   1_idx.CREATE TAB
+|   3824: 4c 45 20 27 74 31 5f 69 64 78 27 28 73 65 67 69   LE 't1_idx'(segi
+|   3840: 64 2c 20 74 65 72 6d 2c 20 70 67 6e 6f 2c 20 50   d, term, pgno, P
+|   3856: 52 49 4d 41 52 59 20 4b 45 59 28 73 65 67 69 64   RIMARY KEY(segid
+|   3872: 2c 20 74 65 72 6d 29 29 20 57 49 54 48 4f 55 54   , term)) WITHOUT
+|   3888: 20 52 4f 57 49 44 55 03 07 17 1b 1b 01 81 01 74    ROWIDU........t
+|   3904: 61 62 6c 65 74 31 5f 64 61 74 61 74 31 5f 64 61   ablet1_datat1_da
+|   3920: 74 61 03 43 52 45 41 54 45 20 54 41 42 4c 45 20   ta.CREATE TABLE 
+|   3936: 27 74 31 5f 64 61 74 61 27 28 69 64 20 49 4e 54   't1_data'(id INT
+|   3952: 45 47 45 52 20 50 52 49 4d 42 52 59 20 4b 45 59   EGER PRIMBRY KEY
+|   3968: 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42 29 38 02 06   , block BLOB)8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 35   LE t1 USING fts5
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 39 00 00 00 00 00   (a,b,c)...9.....
+| page 3 offset 8192
+|      0: 0d 00 00 00 03 0c 94 00 0f e6 0f ef 0c 94 00 00   ................
+|   3216: 00 00 00 00 86 4a 84 80 80 80 80 01 04 00 8d 18   .....J..........
+|   3232: 00 00 03 2b 02 30 30 01 02 06 01 02 06 01 02 06   ...+.00.........
+|   3248: 1f 02 03 01 02 03 01 02 03 01 08 32 30 31 36 30   ...........20160
+|   3264: 36 30 39 01 02 07 01 02 07 01 02 07 01 01 34 01   609...........4.
+|   3280: 02 05 01 02 05 01 02 05 01 01 35 01 02 04 01 02   ..........5.....
+|   3296: 04 01 02 04 02 07 30 30 30 30 30 30 30 1c 02 04   ......0000000...
+|   3312: 01 02 04 01 02 04 01 06 62 69 6e 61 72 79 03 06   ........binary..
+|   3328: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3344: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3360: 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02   ................
+|   3376: 03 06 01 02 02 03 06 01 02 02 01 08 63 6f 6d 70   ............comp
+|   3392: 69 6c 65 72 01 02 02 01 02 02 f1 02 02 01 06 64   iler...........d
+|   3408: 62 73 74 61 74 07 02 03 01 02 03 01 02 03 02 04   bstat...........
+|   3424: 65 62 75 67 04 02 02 01 02 02 01 02 02 01 06 65   ebug...........e
+|   3440: 6e 61 62 6c 65 07 02 02 01 02 02 01 02 02 01 02   nable...........
+|   3456: 02 01 02 02 01 02 02 01 02 02 01 02 02 01 02 02   ................
+|   3472: 01 02 02 01 02 02 01 02 02 01 02 02 01 02 02 01   ................
+|   3488: 02 02 01 02 02 01 02 02 01 02 02 01 02 02 01 02   ................
+|   3504: 02 01 02 02 02 08 78 74 65 6e 73 69 6f 6e 1f 02   ......xtension..
+|   3520: 04 01 02 04 01 02 04 01 04 66 74 73 34 0a 02 03   .........fts4...
+|   3536: 01 02 03 01 02 03 04 01 35 0d 02 03 01 02 03 01   ........5.......
+|   3552: 02 03 01 03 67 63 63 01 02 03 01 02 03 01 02 03   ....gcc.........
+|   3568: 02 06 65 6f 70 6f 6c 79 10 02 03 01 02 03 01 02   ..eopoly........
+|   3584: 03 01 05 6a 73 6f 6e 31 13 02 03 01 02 03 01 02   ...json1........
+|   3600: 03 01 04 6c 6f 61 64 1f 02 03 01 02 03 01 02 03   ...load.........
+|   3616: 01 03 6d 61 78 1c 02 02 01 02 02 01 02 02 02 05   ..max...........
+|   3632: 65 6d 6f 72 79 1c 02 03 01 02 03 01 02 03 04 04   emory...........
+|   3648: 73 79 73 35 16 02 03 01 02 03 01 02 03 01 06 6e   sys5...........n
+|   3664: 6f 63 61 73 65 02 06 01 02 02 03 06 01 02 02 03   ocase...........
+|   3680: 06 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06   ................
+|   3696: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3712: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3728: 02 01 04 6f 6d 69 74 1f 02 02 01 02 02 01 02 02   ...omit.........
+|   3744: 01 05 72 74 72 65 65 19 02 03 01 02 03 01 02 03   ..rtree.........
+|   3760: 04 02 69 6d 01 06 01 02 02 03 06 01 02 02 03 06   ..im............
+|   3776: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3792: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3808: 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02   ................
+|   3824: 01 0a 74 68 72 65 61 64 73 61 66 65 22 02 02 01   ..threadsafe....
+|   3840: 02 02 01 02 02 01 04 76 74 61 62 07 02 04 01 02   .......vtab.....
+|   3856: 04 01 02 04 01 01 78 01 06 01 01 02 01 06 01 01   ......x.........
+|   3872: 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02   ................
+|   3888: 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01   ................
+|   3904: 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06   ................
+|   3920: 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01   ................
+|   3936: 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01   ................
+|   3952: 02 01 06 01 01 02 01 06 01 01 02 08 d6 01 01 02   ................
+|   3968: 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01   ................
+|   3984: 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06   ................
+|   4000: 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01   ................
+|   4016: 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01   ................
+|   4032: 02 01 06 01 01 02 01 06 01 01 02 04 15 13 0c 0c   ................
+|   4048: 12 44 13 11 0f 47 13 0f 0c 0e 11 10 0f 0e 10 0f   .D...G..........
+|   4064: 44 0f 10 40 15 0f 07 01 03 00 14 24 5a 24 24 0f   D..@.......$Z$$.
+|   4080: 0a 03 00 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 4 offset 12288
+|      0: 0a 00 00 00 01 0f fa 00 0f fa 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
+| page 5 offset 16384
+|      0: 0d 00 00 00 24 0c 0a 00 0f d8 0f af 0f 86 0f 74   ....$..........t
+|     16: 0f 61 0f 4e 0f 2f 0f 0f 0e ef 0e d7 0e be 0e a5   .a.N./..........
+|     32: 0e 8d 0e 74 0e 5b 0e 40 0e 24 0e 08 0d ef 0d d5   ...t.[.@.$......
+|     48: 0d bb 0d a0 0d 84 0d 68 0d 4f 0d 35 0d 1b 0c fb   .......h.O.5....
+|     64: 0c da 0c b9 0c 99 0c 78 0c 57 0c 3e 00 00 00 00   .......x.W.>....
+|   3072: 00 00 00 00 00 00 00 00 00 00 18 24 05 00 25 0f   ...........$..%.
+|   3088: 19 54 48 52 45 41 44 53 41 46 45 3d 30 58 42 49   .THREADSAFE=0XBI
+|   3104: 4e 41 52 59 18 23 05 00 25 0f 19 54 48 52 45 41   NARY.#..%..THREA
+|   3120: 44 53 41 46 45 3d 30 58 4e 4f 43 41 53 45 17 22   DSAFE=0XNOCASE..
+|   3136: 05 00 25 0f 17 54 48 52 45 41 44 53 41 46 45 3d   ..%..THREADSAFE=
+|   3152: 30 58 52 54 52 49 4d 1f 20 f5 00 33 0f 19 4f 4d   0XRTRIM. ..3..OM
+|   3168: 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49 4f   IT LOAD EXTENSIO
+|   3184: 4e 58 42 49 4e 41 52 59 1f 20 05 00 33 0f 19 4f   NXBINARY. ..3..O
+|   3200: 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49   MIT LOAD EXTENSI
+|   3216: 4f 4e 58 4e 4f 43 41 53 45 1e 1f 05 00 33 0f 17   ONXNOCASE....3..
+|   3232: 4f 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53   OMIT LOAD EXTENS
+|   3248: 49 4f 4e 58 52 54 52 49 4d 1f 1e 05 00 33 0f 19   IONXRTRIM....3..
+|   3264: 4c 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30 30   LAX MEMORY=50000
+|   3280: 30 30 30 58 42 49 4e 41 52 59 1f 1d 05 00 33 0f   000XBINARY....3.
+|   3296: 19 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30   .MAX MEMORY=5000
+|   3312: 30 30 30 30 58 4e 4f 43 41 53 45 1e 1c 05 00 33   0000XNOCASE....3
+|   3328: 0f 17 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30   ..MAX MEMORY=500
+|   3344: 30 30 30 30 30 58 52 54 52 49 4d 18 1b 05 00 25   00000XRTRIM....%
+|   3360: 0f 19 45 4e 41 42 4c 45 20 52 54 52 45 45 58 42   ..ENABLE RTREEXB
+|   3376: 49 4e 41 52 59 18 1a 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3392: 4c 45 20 52 54 52 45 45 58 4e 4f 43 41 53 45 17   LE RTREEXNOCASE.
+|   3408: 19 05 00 25 0f 17 45 4e 41 42 4c 45 20 52 54 52   ...%..ENABLE RTR
+|   3424: 45 45 58 52 54 52 49 4d 1a 18 05 00 29 0f 19 45   EEXRTRIM....)..E
+|   3440: 4e 41 42 4c 45 20 4d 45 4d 53 59 53 35 58 42 49   NABLE MEMSYS5XBI
+|   3456: 4e 41 52 59 1a 17 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3472: 45 20 4d 45 4d 53 59 53 35 58 4e 4f 43 41 53 45   E MEMSYS5XNOCASE
+|   3488: 19 16 05 00 29 0f 17 45 4e 41 42 4c 45 20 4d 45   ....)..ENABLE ME
+|   3504: 4d 53 59 53 35 58 52 54 52 49 4d 18 15 05 00 25   MSYS5XRTRIM....%
+|   3520: 0f 19 45 4e 41 42 4c 45 20 4a 53 4f 4e 31 58 42   ..ENABLE JSON1XB
+|   3536: 49 4e 41 52 59 18 14 05 00 25 0f 30 45 4e 41 42   INARY....%.0ENAB
+|   3552: 4c 45 20 4a 53 4f 4e 31 58 4e 4f 43 41 53 45 17   LE JSON1XNOCASE.
+|   3568: 13 05 00 25 0f 17 45 4e 41 42 4c 45 20 4a 53 4f   ...%..ENABLE JSO
+|   3584: 4e 31 58 52 54 52 49 4d 1a 12 05 00 29 0f 19 45   N1XRTRIM....)..E
+|   3600: 4e 41 42 4c 45 20 47 45 4f 50 4f 4c 59 58 42 49   NABLE GEOPOLYXBI
+|   3616: 4e 41 52 59 1a 11 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3632: 45 20 47 45 4f 50 4f 4c 59 58 4e 4f 43 41 53 45   E GEOPOLYXNOCASE
+|   3648: 19 10 05 00 29 0f 17 45 4e 41 42 4c 45 20 47 45   ....)..ENABLE GE
+|   3664: 4f 50 4f 4c 59 58 52 54 52 49 4d 17 0f 05 00 23   OPOLYXRTRIM....#
+|   3680: 0f 19 45 4e 41 42 4c 45 20 46 54 53 35 58 42 49   ..ENABLE FTS5XBI
+|   3696: 4e 41 52 59 17 0e 05 00 23 0f 19 45 4e 41 42 4c   NARY....#..ENABL
+|   3712: 45 20 46 54 53 35 58 4e 4f 43 41 53 45 16 0d 05   E FTS5XNOCASE...
+|   3728: 00 23 0f 17 45 4f 41 42 4c 45 20 46 54 53 35 58   .#..EOABLE FTS5X
+|   3744: 52 54 52 49 4d 17 0c 05 00 23 0f 19 45 4e 41 42   RTRIM....#..ENAB
+|   3760: 4c 45 20 46 54 53 34 58 42 49 4e 41 52 59 17 0b   LE FTS4XBINARY..
+|   3776: 05 00 23 0f 19 45 4e 41 42 4c 45 20 46 54 53 34   ..#..ENABLE FTS4
+|   3792: 58 4e 4f 43 41 53 45 16 0a 05 00 23 0f 17 45 4e   XNOCASE....#..EN
+|   3808: 41 42 4c 45 20 46 54 53 34 58 52 54 52 49 4d 1e   ABLE FTS4XRTRIM.
+|   3824: 09 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3840: 54 41 54 20 56 54 31 42 58 42 49 4e 41 52 59 1e   TAT VT1BXBINARY.
+|   3856: 08 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3872: 54 41 54 20 56 54 41 42 58 4e 4f 43 41 53 45 1d   TAT VTABXNOCASE.
+|   3888: 07 05 00 31 0f 17 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3904: 54 41 54 20 56 54 41 42 58 52 54 52 49 4d 11 06   TAT VTABXRTRIM..
+|   3920: 05 00 17 0f 19 44 45 42 55 47 58 42 49 4e 41 52   .....DEBUGXBINAR
+|   3936: 59 11 15 05 00 17 0f 19 44 45 42 55 47 58 4e 4f   Y.......DEBUGXNO
+|   3952: 43 41 53 45 10 04 05 00 17 0f 17 44 45 42 55 47   CASE.......DEBUG
+|   3968: 58 42 54 52 49 4d 27 03 05 00 43 0f 19 43 4f 4d   XBTRIM'...C..COM
+|   3984: 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e 30 20   PILER=gcc-5.4.0 
+|   4000: 32 30 31 36 30 36 30 39 58 42 49 4e 41 52 59 27   20160609XBINARY'
+|   4016: 02 05 00 43 0f 19 43 4f 4d 50 49 4c 45 52 3d 67   ...C..COMPILER=g
+|   4032: 63 63 2d 35 2e 34 2e 30 20 32 30 31 36 30 36 30   cc-5.4.0 2016060
+|   4048: 39 58 4e 4f 43 41 53 45 26 01 05 00 43 0f 17 43   9XNOCASE&...C..C
+|   4064: 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e   OMPILER=gcc-5.4.
+|   4080: 30 20 32 30 31 36 30 36 30 39 58 52 54 52 49 4d   0 20160609XRTRIM
+| page 6 offset 20480
+|      0: 0d 00 00 00 24 0e e0 00 0f f8 0f f0 0f e8 0f e0   ....$...........
+|     16: 0f d8 0f d0 0f c8 0f c0 0f b8 0f b0 0f a8 0f a0   ................
+|     32: 0f 98 0f 90 0f 88 0f 80 0f 78 0f 70 1f 68 0f 60   .........x.p.h.`
+|     48: 0f 58 0f 50 0f 48 0f 40 0f 38 0f 30 0f 28 0f 20   .X.P.H.@.8.0.(. 
+|     64: 0f 18 0f 10 0f 08 0f 00 0e f8 0e f0 0e e8 0e e0   ................
+|   3808: 07 24 03 00 12 02 01 01 06 23 03 00 12 02 01 01   .$.......#......
+|   3824: 06 22 03 00 12 02 01 01 06 21 03 00 12 03 01 01   .........!......
+|   3840: 06 20 03 00 12 03 01 01 06 1f 03 00 12 03 01 01   . ..............
+|   3856: 06 1e 03 00 12 03 01 01 06 1d 03 00 12 03 01 01   ................
+|   3872: 06 1c 03 00 12 03 01 01 06 1b 03 00 12 02 01 01   ................
+|   3888: 06 1a 03 00 12 02 01 01 06 19 03 00 12 02 01 01   ................
+|   3904: 06 18 03 00 12 02 01 01 06 17 03 00 12 02 01 01   ................
+|   3920: 06 16 03 00 12 02 01 01 06 15 03 00 12 02 01 01   ................
+|   3936: 06 14 03 00 12 02 01 01 06 13 03 00 12 02 01 01   ................
+|   3952: 06 12 03 00 12 02 01 01 06 11 03 00 12 02 01 01   ................
+|   3968: 06 10 03 00 12 02 01 01 06 0f 03 00 12 02 01 01   ................
+|   3984: 06 0e 03 00 12 02 01 01 06 0d 03 00 12 02 01 01   ................
+|   4000: 06 0c 03 00 12 02 01 01 06 0b 03 00 12 02 01 01   ................
+|   4016: 06 0a 03 00 12 02 01 01 05 09 03 00 12 03 01 01   ................
+|   4032: 06 08 03 00 12 03 01 01 01 17 03 00 12 03 01 01   ................
+|   4048: 06 06 03 00 12 01 01 01 06 05 03 00 12 01 01 01   ................
+|   4064: 06 04 03 00 12 01 01 01 06 03 02 f0 12 06 01 01   ................
+|   4080: 06 02 03 00 13 06 01 01 06 01 03 00 12 06 01 01   ................
+| page 7 offset 24576
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 8 offset 28672
+|      0: 0d 00 00 00 03 0f d6 00 0f f4 0f e9 0f d6 00 00   ................
+|   4048: 00 00 00 00 00 00 11 03 02 2b 69 6e 74 65 77 72   .........+intewr
+|   4064: 69 74 79 2d 63 68 65 63 6b 09 02 02 1b 72 65 62   ity-check....reb
+|   4080: 75 69 6c 64 0a 01 02 1d 6f 70 74 69 6d 69 7a 65   uild....optimize
+| end crash-b366b5ac0d3887.db
+}]} {}
+
+do_catchsql_test 55.1 {
+  SAVEPOINT one;
+  DELETE FROM t1 WHERE a MATCH 'ts';
+} {/*malformed database schema*/}
+
+do_execsql_test 55.2 {
+  ROLLBACK TO one;
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 56.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 24576 pagesize 4096 filename crash-2acc487d09f033.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 06   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 06 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 00 00 00 06 0e 0f 00 0f aa 0f 53   ...............S
+|    112: 0e e8 0e 8b 0e 33 0e 0f 00 00 00 00 00 00 00 00   .....3..........
+|   3584: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 22   ................
+|   3600: 06 06 17 11 11 01 31 74 61 62 6c 65 62 62 62 62   ......1tablebbbb
+|   3616: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 62 62   .CREATE TABLE bb
+|   3632: 28 61 29 56 05 06 17 1f 1f 01 7d 74 61 62 6c 65   (a)V.......table
+|   3648: 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63 6f 6e 66   t1_configt1_conf
+|   3664: 69 67 05 43 52 45 41 54 45 20 54 41 42 4c 45 20   ig.CREATE TABLE 
+|   3680: 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b 20 50 52   't1_config'(k PR
+|   3696: 49 4d 41 52 59 20 4b 45 59 2c 20 76 29 20 57 49   IMARY KEY, v) WI
+|   3712: 54 48 4f 55 54 20 52 4f 57 49 44 5b 04 07 17 21   THOUT ROWID[...!
+|   3728: 21 01 81 01 74 61 62 6c 65 74 31 5f 64 6f 63 73   !...tablet1_docs
+|   3744: 69 7a 65 74 31 4f 64 6f 63 73 69 7a 65 04 43 52   izet1Odocsize.CR
+|   3760: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 64   EATE TABLE 't1_d
+|   3776: 6f 63 73 69 7a 65 27 28 69 64 20 49 4e 54 45 47   ocsize'(id INTEG
+|   3792: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
+|   3808: 73 7a 20 42 4c 4f 42 29 69 03 07 17 19 19 01 81   sz BLOB)i.......
+|   3824: 2d 74 61 62 6c 65 74 31 5f 69 64 78 74 31 5f 69   -tablet1_idxt1_i
+|   3840: 64 78 03 43 52 45 41 54 45 20 54 41 42 4c 45 20   dx.CREATE TABLE 
+|   3856: 27 74 31 5f 69 64 78 27 28 73 65 67 69 64 2c 20   't1_idx'(segid, 
+|   3872: 74 65 72 6d 2c 20 70 67 6e 6f 2c 20 50 52 49 4d   term, pgno, PRIM
+|   3888: 41 52 59 20 4b 45 59 28 73 65 67 69 64 2c 20 74   ARY KEY(segid, t
+|   3904: 65 72 6d 29 29 20 57 49 54 48 4f 55 54 20 52 4f   erm)) WITHOUT RO
+|   3920: 57 49 44 55 02 07 17 1b 1b 01 81 01 74 61 62 6c   WIDU........tabl
+|   3936: 65 74 31 5f 64 61 74 61 74 31 5f 64 61 74 61 02   et1_datat1_data.
+|   3952: 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74 31   CREATE TABLE 't1
+|   3968: 5f 64 61 74 61 27 28 69 64 20 49 4e 54 45 47 45   _data'(id INTEGE
+|   3984: 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 62   R PRIMARY KEY, b
+|   4000: 6c 6f 63 6b 20 42 4c 4f 42 29 54 01 07 17 11 11   lock BLOB)T.....
+|   4016: 08 81 15 74 61 62 6c 65 74 31 74 31 43 52 45 41   ...tablet1t1CREA
+|   4032: 54 45 20 56 49 52 54 55 41 4c 20 54 41 42 4c 45   TE VIRTUAL TABLE
+|   4048: 20 74 31 20 55 53 49 4e 47 20 66 74 73 35 28 61    t1 USING fts5(a
+|   4064: 2c 62 2c 70 72 65 66 69 78 3d 22 32 2c 32 2c 33   ,b,prefix=.2,2,3
+|   4080: 2c 34 22 2c 20 63 6f 6e 74 65 6e 74 3d 22 22 29   ,4., content=..)
+| page 2 offset 4096
+|      0: 0d 0b 6a 00 37 09 4c 02 0f e7 09 4c 0f c6 0f a4   ..j.7.L....L....
+|     16: 0f 88 0f 6d 0f 4b 0f 2c 0f 0e 0e ec 0e cd 0e ad   ...m.K.,........
+|     32: 0e 8e 0e 6c 0e 4b 0e 29 0e 08 0d e6 0d c4 0d b5   ...l.K.)........
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+|     64: 0c 95 0c 73 0c 54 0c 32 0c 10 0b ee 0b cc 0b b0   ...s.T.2........
+|     80: 0b 8d 0b 7e 0b 48 0b 2e 0b 0b 0a ef 0a cc 0a ad   ...~.H..........
+|     96: 0a 8c 0a 6d 0a 4d 0a 2b 0a 0c 09 ec 09 ca 09 a8   ...m.M.+........
+|    112: 09 86 09 63 0f f1 00 00 00 00 00 00 00 00 00 00   ...c............
+|   2368: 00 00 00 00 00 00 00 00 00 00 00 00 15 0a 03 00   ................
+|   2384: 30 00 00 00 01 01 03 35 00 03 01 01 12 02 01 12   0......5........
+|   2400: 03 01 11 1c 8c 80 80 80 80 10 03 00 3e 00 00 00   ............>...
+|   2416: 17 01 05 05 34 74 61 62 6c 03 02 03 01 04 77 68   ....4tabl.....wh
+|   2432: 65 72 03 02 06 09 1b 8c 80 80 80 80 0f 03 00 3c   er.............<
+|   2448: 00 00 00 16 05 34 66 74 73 34 03 02 02 01 04 6e   .....4fts4.....n
+|   2464: 75 6d 62 03 06 01 04 09 1b 8c 80 80 80 80 0e 03   umb.............
+|   2480: 00 3c 00 00 00 16 04 33 74 68 65 03 06 01 01 04   .<.....3the.....
+|   2496: 01 03 77 68 65 03 02 04 04 0a 1b 8c 80 80 80 80   ..whe...........
+|   2512: 0d 03 00 3c 00 00 00 16 04 33 6e 75 6d 03 06 01   ...<.....3num...
+|   2528: 01 05 01 03 74 61 62 03 02 03 04 0a 19 8c 80 80   ....tab.........
+|   2544: 80 80 0c 03 00 38 00 00 00 14 03 32 77 68 03 02   .....8.....2wh..
+|   2560: 04 00 04 33 66 74 73 03 02 02 04 07 18 8c 80 80   ...3fts.........
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+|   2592: 03 02 01 68 03 06 01 01 04 04 07 1b 8c 80 80 80   ...h............
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+|   2624: 01 05 01 02 6f 66 03 3b 01 01 06 04 09 19 8c 80   ....of.;........
+|   2640: 80 80 80 09 03 00 38 00 00 00 14 03 32 66 74 03   ......8.....2ft.
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+|   2672: 80 80 80 08 03 00 36 00 00 00 13 02 31 74 03 08   ......6.....1t..
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+|   2736: 80 80 80 06 03 00 36 00 00 00 13 04 02 31 66 03   ......6......1f.
+|   2752: 02 02 01 01 69 03 06 01 01 03 05 06 1c 8c 80 80   ....i...........
+|   2768: 80 80 05 03 00 3e 00 00 00 17 04 30 74 68 65 03   .....>.....0the.
+|   2784: 06 00 f1 04 01 05 77 68 65 72 65 03 02 04 0a 15   ......where.....
+|   2800: 8c 80 80 80 80 04 03 00 30 00 00 00 11 01 01 06   ........0.......
+|   2816: 06 30 74 61 62 6c 65 03 02 03 07 1c 8c 80 80 80   .0table.........
+|   2832: 80 03 03 00 3e 00 00 00 17 07 30 6e 75 6d 62 65   ....>.....0numbe
+|   2848: 72 03 06 01 01 05 01 02 6f 66 03 06 04 0d 13 8c   r.......of......
+|   2864: 80 80 80 80 02 03 00 2c 00 00 00 0f 01 01 03 02   .......,........
+|   2880: 30 6e 03 06 01 01 02 07 1b 8c 80 80 80 80 01 03   0n..............
+|   2896: 00 3c 00 00 00 16 08 30 66 74 73 34 61 75 78 03   .<.....0fts4aux.
+|   2912: 02 02 01 02 69 73 03 06 04 0c 00 00 00 14 2a 00   ....is........*.
+|   2928: 00 00 01 01 02 24 00 02 01 01 12 02 01 12 08 88   .....$..........
+|   2944: 80 80 80 80 12 03 00 16 00 00 00 05 02 1c 88 80   ................
+|   2960: 80 80 80 11 03 00 3e 00 00 00 17 05 34 72 6f 77   ......>.....4row
+|   2976: 73 02 06 01 01 05 01 04 74 68 65 72 02 02 04 0b   s.......ther....
+|   2992: 15 88 80 80 80 80 10 03 00 30 00 00 00 11 02 01   .........0......
+|   3008: 01 07 05 34 62 65 74 77 02 02 04 08 1b 88 80 80   ...4betw........
+|   3024: 80 80 0f 03 00 3c 00 00 00 16 04 04 33 72 6f 77   .....<......3row
+|   3040: 02 06 01 01 05 01 03 74 68 65 02 08 05 0a 1b 88   .......the......
+|   3056: 80 80 80 80 0e 03 00 3c 00 00 00 16 01 01 02 04   .......<........
+|   3072: 33 61 72 65 02 02 03 01 03 62 65 74 02 02 07 08   3are.....bet....
+|   3088: 1b 88 80 80 80 80 0d 03 00 3c 00 00 00 16 03 32   .........<.....2
+|   3104: 74 68 02 08 02 01 01 07 00 04 33 61 6e 64 02 06   th........3and..
+|   3120: 04 0a 1b 88 80 80 80 80 0c 03 00 3c 00 00 00 16   ...........<....
+|   3136: 03 32 69 6e 02 06 01 01 06 01 02 72 6f 02 06 01   .2in.......ro...
+|   3152: 01 05 04 09 18 88 80 80 80 80 0b 03 00 36 00 00   .............6..
+|   3168: 00 13 02 03 32 61 72 02 02 03 01 02 62 65 02 02   ....2ar.....be..
+|   3184: 04 05 07 1b 88 80 80 80 80 0a 03 00 3c 00 00 00   ............<...
+|   3200: 16 02 31 74 02 08 02 01 01 07 00 03 32 61 6e 02   ..1t........2an.
+|   3216: 06 01 01 04 09 19 88 80 80 80 80 09 03 00 38 00   ..............8.
+|   3232: 00 00 14 02 31 6e 02 06 01 01 03 01 01 72 02 06   ....1n.......r..
+|   3248: 01 01 05 04 08 17 88 80 80 80 80 08 03 00 34 00   ..............4.
+|   3264: 00 00 12 02 31 62 02 02 04 01 01 69 02 06 01 01   ....1b.....i....
+|   3280: 06 04 06 19 88 80 80 80 80 07 03 00 38 00 00 00   ............8...
+|   3296: 14 04 02 31 32 02 02 05 01 01 61 02 08 03 01 01   ...12.....a.....
+|   3312: 02 05 06 1b 88 80 80 80 80 06 03 00 3c 00 00 00   ............<...
+|   3328: 16 06 30 74 68 65 72 65 02 02 02 00 02 31 31 02   ..0there.....11.
+|   3344: 06 01 01 04 0a 15 88 80 80 80 80 05 03 00 30 00   ..............0.
+|   3360: 00 00 11 01 01 05 04 30 74 68 65 02 06 01 01 07   .......0the.....
+|   3376: 07 1c 88 80 80 80 80 04 03 00 3e 00 00 00 17 01   ..........>.....
+|   3392: 01 06 02 30 6e 02 06 01 01 03 01 04 72 6f 77 73   ...0n.......rows
+|   3408: 02 06 07 08 1b 88 80 80 80 80 03 03 00 3c 00 00   .............<..
+|   3424: 00 16 08 30 62 65 74 77 65 65 6e 02 02 04 01 02   ...0between.....
+|   3440: 69 6e 02 06 04 0c 1a 88 80 80 80 80 02 03 00 3a   in.............:
+|   3456: 00 00 00 15 04 30 61 6e 64 02 06 01 01 02 02 02   .....0and.......
+|   3472: 72 65 02 02 03 04 0a 17 88 80 80 80 80 01 03 00   re..............
+|   3488: 34 00 00 00 12 02 30 31 02 06 01 01 04 01 01 32   4.....01.......2
+|   3504: 02 02 05 04 08 08 84 80 80 80 81 12 03 00 16 00   ................
+|   3520: 00 00 05 04 1b 84 61 80 80 80 11 03 00 3c 00 00   ......a......<..
+|   3536: 00 16 05 34 74 61 62 6c 01 06 01 01 05 02 03 65   ...4tabl.......e
+|   3552: 72 6d 01 02 04 0b 1b 84 80 80 80 80 10 03 00 3c   rm.............<
+|   3568: 00 00 00 16 05 34 65 61 63 68 01 02 03 01 04 70   .....4each.....p
+|   3584: 72 65 73 01 02 05 04 09 1a 84 80 80 80 80 0f 03   res.............
+|   3600: 00 3a 00 00 00 15 04 33 74 65 72 01 02 04 02 02   .:.....3ter.....
+|   3616: 68 65 01 06 01 01 03 04 08 1b 84 80 80 80 80 0e   he..............
+|   3632: 03 00 3c 00 00 00 16 04 33 70 72 65 01 02 05 01   ..<.....3pre....
+|   3648: 03 74 61 62 01 06 01 01 05 14 08 1a 84 80 80 80   .tab............
+|   3664: 80 0d 03 00 3a 00 00 00 15 04 33 66 6f 72 01 02   ....:.....3for..
+|   3680: 02 02 02 74 73 01 06 01 01 04 04 08 1b 84 80 80   ...ts...........
+|   3696: 80 80 0c 03 00 3c 00 00 00 16 03 32 74 68 01 06   .....<.....2th..
+|   3712: 01 01 03 00 04 33 65 61 63 01 02 03 04 09 18 84   .....3eac.......
+|   3728: 80 80 80 80 0b 03 00 36 00 00 00 13 03 32 74 71   .......6.....2tq
+|   3744: 01 06 01 01 05 02 01 65 01 02 04 04 09 19 84 80   .......e........
+|   3760: 80 80 80 0a 03 00 38 00 00 00 14 03 32 69 6e 01   ......8.....2in.
+|   3776: 06 01 01 02 01 02 70 72 01 02 05 0b 89 18 84 80   ......pr........
+|   3792: 80 80 80 09 03 00 36 00 00 00 13 03 32 66 6f 01   ......6.....2fo.
+|   3808: 02 02 02 01 74 01 06 01 01 04 04 07 1b 84 80 80   ....t...........
+|   3824: 80 80 08 03 00 3c 00 00 00 16 02 31 74 01 0a 04   .....<.....1t...
+|   3840: 01 01 03 04 00 03 32 65 61 01 02 03 04 0a 17 84   ......2ea.......
+|   3856: 80 80 80 80 07 03 00 34 00 00 00 12 02 31 69 01   .......4.....1i.
+|   3872: 06 01 01 02 01 01 70 01 02 05 04 08 18 84 80 80   ......p.........
+|   3888: 80 80 06 03 00 36 00 00 00 13 02 31 65 01 02 03   .....6.....1e...
+|   3904: 01 01 66 01 08 02 01 01 04 04 06 1b 84 80 80 80   ..f.............
+|   3920: 80 05 03 00 3c 00 00 00 16 05 30 74 65 72 6d 01   ....<.....0term.
+|   3936: 02 04 02 02 68 65 01 06 01 01 03 04 09 14 84 80   ....he..........
+|   3952: 80 80 80 04 03 00 2e 00 00 00 10 06 30 74 61 62   ............0tab
+|   3968: 6c 65 01 06 01 01 05 04 15 84 80 80 80 80 03 03   le..............
+|   3984: 00 30 00 00 00 11 02 08 30 70 72 65 73 65 6e 74   .0......0present
+|   4000: 01 02 05 05 1b 84 80 80 80 80 02 03 00 3c 00 00   .............<..
+|   4016: 00 16 04 30 66 74 73 01 06 01 01 04 01 02 69 6e   ...0fts.......in
+|   4032: 01 06 01 01 04 0a 1a 84 80 80 80 80 01 03 00 3a   ...............:
+|   4048: 00 00 00 15 05 30 65 61 63 f4 01 02 03 01 03 66   .....0eac......f
+|   4064: 6f 72 01 02 02 04 09 06 01 03 00 12 03 0b 0f 00   or..............
+|   4080: 00 08 8c 80 80 80 80 11 03 00 16 00 00 00 05 04   ................
+| page 3 offset 8192
+|      0: 0a 00 00 00 32 0e 4f 00 0f fa 0f f1 0f e9 0f e1   ....2.O.........
+|     16: 0f d8 0f d1 0f c9 0f c1 0f b9 0f b1 0f a9 0f a0   ................
+|     32: 0f 98 0f 90 0f 87 0f 80 0f 78 0f 71 0f 68 0f 5f   .........x.q.h._
+|     48: 0f 56 0f 4d 0f 41 0f 38 0f 2f 0f 26 0f 1d 0f 13   .V.M.A.8./.&....
+|     64: 0f 0a 0f 01 0e f7 0e ee 0e e6 0e dd 0e d6 0e cd   ................
+|     80: 0e c3 0e ba 0e b0 0e a8 0e 9f 0e 96 0e 8e 0e 85   ................
+|     96: 0e 7c 0e 73 0e 6a 0e 60 0e 58 0e 4f 00 00 00 00   .|.s.j.`.X.O....
+|   3648: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08   ................
+|   3664: 04 01 10 01 03 34 74 20 07 04 01 0e 01 03 34 1e   .....4t ......4.
+|   3680: 09 04 01 12 01 03 33 74 68 1c 08 04 01 10 01 03   ......3th.......
+|   3696: 33 6e 1a 08 04 01 10 01 03 32 77 18 08 04 01 10   3n.......2w.....
+|   3712: 01 03 32 74 16 08 04 01 10 01 03 32 6e 14 07 04   ..2t.......2n...
+|   3728: 01 0e 01 03 32 12 08 04 01 10 01 03 31 74 10 08   ....2.......1t..
+|   3744: 04 01 10 01 03 31 6e 0e 07 04 01 0e 01 03 31 0c   .....1n.......1.
+|   3760: 09 04 01 12 01 03 30 74 68 0a 08 04 01 10 01 03   ......0th.......
+|   3776: 30 74 08 09 04 01 12 01 03 30 6e 75 06 08 04 01   0t.......0nu....
+|   3792: 10 01 03 30 6e 04 06 04 01 0c 01 03 02 08 04 01   ...0n...........
+|   3808: 10 01 02 34 72 22 07 04 01 0e 01 02 34 20 08 04   ...4r.......4 ..
+|   3824: 01 10 01 02 33 72 1e 09 04 01 12 01 02 33 61 72   ....3r.......3ar
+|   3840: 1c 08 04 01 10 01 02 32 74 1a 08 04 01 10 b3 02   .......2t.......
+|   3856: 32 69 18 09 04 01 12 01 02 32 61 72 16 08 04 01   2i.......2ar....
+|   3872: 10 01 02 31 74 14 08 04 01 10 01 02 31 6e 12 08   ...1t.......1n..
+|   3888: 04 01 10 01 02 31 62 10 08 04 01 10 01 02 31 32   .....1b.......12
+|   3904: 0e 0b 04 01 16 01 02 30 74 68 65 72 0c 08 04 01   .......0ther....
+|   3920: 10 01 02 30 74 0a 08 04 01 10 01 02 30 6e 08 08   ...0t.......0n..
+|   3936: 04 01 10 01 02 30 62 06 08 04 01 10 01 02 30 61   .....0b.......0a
+|   3952: 05 06 04 01 0c 01 02 02 07 04 09 10 01 34 74 22   .............4t.
+|   3968: 06 04 09 0e 01 34 20 08 04 09 12 01 33 74 65 1e   .....4 .....3te.
+|   3984: 07 04 09 10 01 33 70 1c 07 04 09 10 01 33 66 1a   .....3p......3f.
+|   4000: 08 04 09 12 01 32 74 68 18 07 04 09 10 01 32 2d   .....2th......2-
+|   4016: 16 07 04 09 10 01 32 69 14 07 04 09 10 01 32 66   ......2i......2f
+|   4032: 12 07 04 09 10 01 31 74 10 07 04 09 10 01 31 69   ......1t......1i
+|   4048: 0e 06 04 09 0e 01 31 0c 08 04 09 12 01 30 74 65   ......1......0te
+|   4064: 0a 07 04 09 10 01 30 74 08 07 04 09 10 01 30 70   ......0t......0p
+|   4080: 06 08 04 09 12 01 30 66 74 04 05 04 09 0c 01 02   ......0ft.......
+| page 4 offset 12288
+|      0: 0d 00 00 00 03 0f eb 00 0f f9 0f f2 0f eb 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 05 03 03 00 10   ................
+|   4080: 03 05 05 02 03 00 10 04 06 05 01 03 00 10 04 03   ................
+| page 5 offset 16384
+|      0: 0a 00 00 00 02 0f eb 00 0f eb 0f f4 00 00 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 08 03 15 01 70   ...............p
+|   4080: 67 73 7a 18 0b 03 1b 01 76 65 72 73 69 6f 6e 04   gsz.....version.
+| page 6 offset 20480
+|      0: 0d 00 00 00 03 0f f2 00 0f fc 0f f7 0f f2 00 00   ................
+|   4080: 00 00 03 03 02 01 03 03 02 02 01 02 02 01 02 09   ................
+| end crash-2acc487d09f033.db
+}]} {}
+
+do_test 56.1 {
+  set res [catchsql {
+    INSERT INTO t1(b) VALUES(randomblob(250));
+    INSERT INTO t1(b) VALUES(randomblob(250));
+  }]
+
+  # For some permutations - those that use the page-cache - this test
+  # may return SQLITE_CONSTRAINT instead of SQLITE_CORRUPT. This is because
+  # the corrupt db in the test over-reads the page buffer slightly, with
+  # different results depending on whether or not the page-cache is in use.
+  if {$res=="1 {constraint failed}"} {
+    set res "1 {database disk image is malformed}"
+  }
+  set res
+} {/*malformed database schema*/}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 57.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 28672 pagesize 4096 filename x.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 01 00 00 00 07   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01   ................
+|     96: 00 2e 34 20 0d 00 00 00 07 0d d2 00 0f c4 0f 6d   ..4 ...........m
+|    112: 0f 02 0e ab 0e 4e 0d f6 0d d2 00 00 00 00 00 00   .....N..........
+|   3536: 00 00 22 07 06 17 11 11 01 31 74 61 62 6c 65 74   .........1tablet
+|   3552: 32 74 32 07 43 52 45 41 54 45 20 54 41 42 4c 45   2t2.CREATE TABLE
+|   3568: 20 74 32 28 78 29 56 06 06 17 1f 1f 01 7d 74 61    t2(x)V.......ta
+|   3584: 61 6b 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   aket1_configt1_c
+|   3600: 6f 7e 66 69 67 06 43 52 45 41 54 45 20 54 41 42   o~fig.CREATE TAB
+|   3616: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
+|   3632: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
+|   3648: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 05    WITHOUT ROWID[.
+|   3664: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64   ..!!...tablet1_d
+|   3680: 6f 63 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65   ocsizet1_docsize
+|   3696: 05 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
+|   3712: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
+|   3728: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
+|   3744: 59 2c 20 73 7a 20 42 4c 4f 42 29 55 04 06 17 21   Y, sz BLOB)U...!
+|   3760: 21 01 77 74 61 62 6c 65 74 31 5f 63 6f 6e 74 1d   !.wtablet1_cont.
+|   3776: 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 04 43 52 45   ntt1_content.CRE
+|   3792: 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63 6f   ATE TABLE 't1_co
+|   3808: 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47 45   ntent'(id INTEGE
+|   3824: 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 63   R PRIMARY KEY, c
+|   3840: 30 29 69 03 07 17 19 19 01 81 2d 74 61 62 6c 65   0)i.......-table
+|   3856: 74 31 5f 69 64 78 74 31 5f 59 64 78 03 43 52 45   t1_idxt1_Ydx.CRE
+|   3872: 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 69 64   ATE TABLE 't1_id
+|   3888: 78 27 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20   x'(segid, term, 
+|   3904: 70 67 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45   pgno, PRIMARY KE
+|   3920: 59 28 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20   Y(segid, term)) 
+|   3936: 57 49 54 48 4f 55 54 20 52 4f 57 49 44 55 02 07   WITHOUT ROWIDU..
+|   3952: 17 1b 1b 01 81 01 74 61 62 6c 65 74 31 5f 64 61   ......tablet1_da
+|   3968: 74 61 74 31 5f 64 61 64 61 02 43 52 45 41 54 45   tat1_dada.CREATE
+|   3984: 20 54 41 42 4c 45 20 27 74 31 5f 64 61 74 61 27    TABLE 't1_data'
+|   4000: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   (id INTEGER PRIM
+|   4016: 41 52 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42   ARY KEY, block B
+|   4032: 4c 4f 42 29 3a 01 06 17 11 11 08 63 74 61 62 6c   LOB):......ctabl
+|   4048: 65 74 31 74 31 43 52 45 41 54 45 20 56 49 52 54   et1t1CREATE VIRT
+|   4064: 55 41 4c 20 54 41 42 4c 45 20 74 31 20 55 53 49   UAL TABLE t1 USI
+|   4080: 4e 47 20 66 74 73 35 28 63 6f 6e 74 65 6e 74 29   NG fts5(content)
+| page 2 offset 4096
+|      0: 0d 0e b4 00 06 0e 35 00 0f e8 0e 35 0f bd 0f 4e   ......5....5...N
+|     16: 0e cb 0e 4f 00 00 00 00 00 00 00 00 00 00 00 00   ...O............
+|   3632: 00 00 00 00 00 18 0a 03 00 36 00 00 00 00 01 04   .........6......
+|   3648: 04 00 04 01 01 01 02 01 01 03 01 01 04 01 01 5e   ...............^
+|   3664: 90 80 80 80 80 01 04 00 81 40 00 00 00 51 06 30   .........@...Q.0
+|   3680: 61 62 61 63 6b 01 01 04 04 6e 64 6f 6e 01 01 02   aback....ndon...
+|   3696: 04 63 69 76 65 01 01 02 04 6c 70 68 61 01 01 02   .cive....lpha...
+|   3712: 03 74 6f 6d 01 01 01 06 62 61 63 6b 75 70 01 01   .tom....backup..
+|   3728: 02 05 6f 6f 6d 65 72 01 01 01 06 63 68 61 6e 6e   ..oomer....chann
+|   3744: 65 01 01 01 04 74 65 73 74 01 01 04 09 08 08 08   e....test.......
+|   3760: 07 0a 09 0a 0f 3a 00 17 30 00 00 00 00 01 03 03   .....:..0.......
+|   3776: 00 03 01 01 01 02 01 01 03 01 01 68 8c 80 80 80   ...........h....
+|   3792: 80 01 04 00 81 54 00 00 00 5b 06 30 61 62 61 63   .....T...[.0abac
+|   3808: 6b 02 02 07 04 04 6e 64 6f 6e 02 02 05 02 04 63   k.....ndon.....c
+|   3824: 69 76 65 02 02 0b 02 04 6c 70 68 61 02 04 02 0a   ive.....lpha....
+|   3840: 02 03 74 6f 6d 02 02 09 01 06 62 61 63 6b 75 70   ..tom.....backup
+|   3856: 02 02 04 02 05 6f 6f 6d 65 72 02 02 08 01 06 63   .....oomer.....c
+|   3872: 68 61 6e 6e 65 02 02 03 01 04 74 65 73 74 02 02   hanne.....test..
+|   3888: 06 04 0a 09 09 0a 08 0b 0a 0b 0f ef 00 14 2a 00   ..............*.
+|   3904: 00 00 00 01 02 02 00 02 01 01 01 02 01 01 68 88   ..............h.
+|   3920: 80 80 80 80 01 04 00 81 54 00 00 00 5b 06 30 61   ........T...[.0a
+|   3936: 62 61 63 6b 01 02 07 04 04 6e 64 6f 6e 01 02 05   back.....ndon...
+|   3952: 02 04 63 69 76 65 01 02 0b 02 04 6c 70 68 61 01   ..cive.....lpha.
+|   3968: 04 02 0a 02 03 74 6f 6d 01 02 09 01 06 62 61 63   .....tom.....bac
+|   3984: 6b 75 70 01 02 04 02 05 6f 6f 6d 65 72 01 02 08   kup.....oomer...
+|   4000: 01 06 63 68 61 6e 6e 65 01 02 03 01 04 74 65 73   ..channe.....tes
+|   4016: 74 01 02 06 04 0a 09 09 0a 08 0b 0a 0b 24 84 80   t............$..
+|   4032: 80 80 80 01 03 00 4e 00 00 00 1e 06 30 61 62 61   ......N.....0aba
+|   4048: 63 6b 01 02 02 05 42 66 74 02 02 02 04 04 6e 64   ck....Bft.....nd
+|   4064: 6f 6e 03 02 02 04 0a 07 05 01 03 00 10 04 0d 00   on..............
+|   4080: 00 00 11 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 3 offset 8192
+|      0: 0a 00 00 00 04 0f e5 00 00 00 0f f3 0f ec 0f e5   ................
+|   4064: 00 00 00 00 00 06 04 01 0c 01 04 02 06 04 01 0c   ................
+|   4080: 01 03 02 06 04 01 0c 01 02 02 05 04 09 0d 01 02   ................
+| page 4 offset 12288
+|      0: 0d 0e bc 00 04 0e 78 00 00 00 00 00 00 00 0e 78   ......x........x
+|     16: 0e 78 00 00 00 00 00 00 00 00 00 00 00 00 00 00   .x..............
+|   3696: 00 00 00 00 00 00 00 00 42 02 04 00 81 09 61 6c   ........B.....al
+|   3712: 70 68 61 20 63 68 61 6e 6e 65 20 62 61 63 6b 75   pha channe backu
+|   3728: 70 20 61 62 61 6e 64 6f 6e 20 74 65 73 74 20 61   p abandon test a
+|   3744: 62 61 63 6b 20 62 6f 6f 6d 65 72 20 61 74 6f 6d   back boomer atom
+|   3760: 20 61 6c 70 68 61 20 61 63 69 76 65 00 00 00 44    alpha acive...D
+|   3776: 81 09 61 6c 70 68 61 20 63 68 61 6e 6e 65 20 62   ..alpha channe b
+|   3792: 61 63 6b 75 70 20 61 62 61 6e 64 6f 6e 20 74 65   ackup abandon te
+|   3808: 73 74 20 61 62 61 63 6b 20 62 6f 6f 6d 65 72 20   st aback boomer 
+|   3824: 61 74 6f 6d 20 61 6c 70 68 61 20 61 63 69 76 65   atom alpha acive
+|   4064: 0a 03 03 00 1b 61 4e 61 6e 64 6f 6e 08 02 03 00   .....aNandon....
+|   4080: 17 61 62 61 66 74 08 01 03 00 17 61 62 71 63 6b   .abaft.....abqck
+| page 5 offset 16384
+|      0: 0d 0f e8 00 04 0f e2 00 00 00 00 00 00 00 0f e2   ................
+|     16: 0f e2 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4064: 00 00 04 02 03 00 0e 0a 00 00 00 06 0e 0a 04 03   ................
+|   4080: 03 00 0e 01 04 02 03 00 0e 01 04 01 03 10 0e 01   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 7 offset 24576
+|      0: 0d 00 00 00 03 0f d6 00 0f f4 00 00 00 00 00 00   ................
+|   4048: 00 00 00 00 00 00 09 03 02 1b 72 65 62 75 69 6c   ..........rebuil
+|   4064: 64 11 02 02 2b 69 6e 74 65 67 72 69 74 79 2d 63   d...+integrity-c
+|   4080: 68 65 63 6b 0a 01 02 1d 6f 70 74 69 6d 69 7a 65   heck....optimize
+| end x.db
+}]} {}
+
+do_catchsql_test 57.1 {
+  INSERT INTO t1(t1) VALUES('optimize')
+} {/*malformed database schema*/}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 58.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 24576 pagesize 4096 filename crash-5a5acd0ab42d31.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 00   .....@  ........
+|     96: 00 00 00 00 0d 00 00 00 06 0e 0f 00 0f aa 0f 53   ...............S
+|    112: 0e e8 0e 8b 0e 33 0e 0f 00 00 00 00 00 00 00 00   .....3..........
+|   3584: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 22   ................
+|   3600: 06 06 17 11 11 01 31 74 61 62 6c 65 62 62 62 62   ......1tablebbbb
+|   3616: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 62 62   .CREATE TABLE bb
+|   3632: 28 61 29 56 05 06 17 1f 1f 01 7d 74 61 62 6c 65   (a)V.......table
+|   3648: 74 31 5f 63 2a 6e 66 69 68 74 31 5f 63 6f 6e 66   t1_c*nfiht1_conf
+|   3664: 69 67 05 43 52 45 41 54 45 20 54 41 42 4c 45 20   ig.CREATE TABLE 
+|   3680: 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b 20 50 52   't1_config'(k PR
+|   3696: 49 4d 41 52 59 20 4b 45 59 2c 20 76 29 20 57 49   IMARY KEY, v) WI
+|   3712: 54 48 4f 55 54 20 52 4f 57 49 44 5b 04 07 17 21   THOUT ROWID[...!
+|   3728: 21 01 81 01 74 61 62 6c 65 74 31 5f 64 6f 73 73   !...tablet1_doss
+|   3744: 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65 04 43 52   izet1_docsize.CR
+|   3760: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 64   EATE TABLE 't1_d
+|   3776: 6f 63 73 69 7a 65 27 28 69 64 20 49 4e 54 45 47   ocsize'(id INTEG
+|   3792: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
+|   3808: 73 7a 20 42 4c 4f 42 29 69 03 07 17 19 19 01 81   sz BLOB)i.......
+|   3824: 2d 74 61 62 6c 65 74 31 5f 69 64 78 74 31 5f 69   -tablet1_idxt1_i
+|   3840: 64 78 03 43 52 45 41 54 45 20 54 41 42 4c 45 20   dx.CREATE TABLE 
+|   3856: 27 74 31 5f 69 64 78 27 28 73 65 67 69 64 2c 20   't1_idx'(segid, 
+|   3872: 74 65 72 6d 2c 20 70 67 6e 6f 2c 20 50 52 49 4d   term, pgno, PRIM
+|   3888: 41 52 59 20 4b 45 59 28 73 65 67 69 64 2c 20 74   ARY KEY(segid, t
+|   3904: 65 72 6d 29 29 20 57 49 54 48 4f 55 54 20 52 4f   erm)) WITHOUT RO
+|   3920: 57 49 44 55 02 07 17 1b 1b 01 81 01 74 61 62 6c   WIDU........tabl
+|   3936: 65 74 31 5f 64 61 74 61 74 31 5f 64 61 74 61 02   et1_datat1_data.
+|   3952: 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74 31   CREATE TABLE 't1
+|   3968: 5f 64 61 74 61 27 28 69 64 20 49 4e 54 45 47 45   _data'(id INTEGE
+|   3984: 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 62   R PRIMARY KEY, b
+|   4000: 6c 6f 63 6b 20 42 4c 4f 42 29 54 01 07 17 11 11   lock BLOB)T.....
+|   4016: 08 81 15 74 61 62 6c 65 74 31 74 31 43 52 45 41   ...tablet1t1CREA
+|   4032: 54 45 20 56 49 52 54 55 41 4c 20 54 41 42 4c 45   TE VIRTUAL TABLE
+|   4048: 20 74 31 20 55 53 49 4e 47 20 66 74 73 35 28 61    t1 USING fts5(a
+|   4064: 2c 62 2c 70 72 65 66 69 78 3d 22 32 2c 32 2c 33   ,b,prefix=.2,2,3
+|   4080: 2c 34 22 2c 20 63 6f 6e 74 65 6e 74 3d 22 22 29   ,4., content=..)
+| page 2 offset 4096
+|      0: 0d 0b 6a 00 37 09 4c 02 0f e7 09 4c 0f c6 0f a4   ..j.7.L....L....
+|     16: 0f 88 0f 6d 0f 4b 0f 2c 0f 0e 0e ec 0e cd 0e ae   ...m.K.,........
+|     32: 0e 8e 0e 6c 0e 4b 0e 29 0e 08 0d e6 0d c4 0d b5   ...l.K.)........
+|     48: 0d 97 0d 76 0d 54 0d 30 fd 15 0c f3 0c d3 0c b5   ...v.T.0........
+|     64: 0c 95 0c 73 0c 54 0c 32 0c 10 0b ee 0b cc 0b b0   ...s.T.2........
+|     80: 0b 8d 0b 7e 0b 48 0b 2e 0b 0b 0a ef 0a cc 0a ad   ...~.H..........
+|     96: 0a 8c 0a 6d 0a 4d 0a 2b 0a 0c 00 00 00 00 00 00   ...m.M.+........
+|   2368: 00 00 00 00 00 00 00 00 00 00 00 00 15 0a 03 00   ................
+|   2384: 30 00 00 00 9c 01 03 35 00 03 01 01 12 02 01 12   0......5........
+|   2400: 03 01 11 1c 8c 80 80 80 80 10 03 00 3e 00 00 00   ............>...
+|   2416: 17 01 05 05 34 74 61 62 6c 03 02 03 01 04 77 68   ....4tabl.....wh
+|   2432: 65 72 03 02 06 09 1b 8c 80 80 80 80 0f 03 00 3c   er.............<
+|   2448: 00 00 00 16 05 34 66 74 73 34 03 02 02 01 04 6e   .....4fts4.....n
+|   2464: 75 6d 62 03 06 01 04 09 1b 8c 80 80 80 80 0e 03   umb.............
+|   2480: 00 3c 00 00 00 16 04 33 74 68 65 03 06 01 01 04   .<.....3the.....
+|   2496: 01 03 77 68 65 03 02 04 04 0a 1b 8c 80 80 80 80   ..whe...........
+|   2512: 0d 03 00 3c 00 00 00 16 04 33 6e 75 6d 03 06 01   ...<.....3num...
+|   2528: 01 05 01 03 74 61 62 05 62 03 04 0a 19 8c 80 80   ....tab.b.......
+|   2544: 80 80 0c 03 00 38 00 00 00 14 03 39 a7 68 03 02   .....8.....9.h..
+|   2560: 04 10 04 33 66 74 73 03 02 02 04 07 18 8c 80 80   ...3fts.........
+|   2576: 80 80 0b 03 00 36 00 00 00 13 03 32 74 61 03 02   .....6.....2ta..
+|   2592: 03 02 01 68 03 06 01 01 04 04 07 1b 8c 80 80 80   ...h............
+|   2608: 80 0a 03 00 3c 00 00 00 16 03 32 6e 75 03 06 01   ....<.....2nu...
+|   2624: 01 05 01 02 6f 66 03 06 01 01 06 04 09 19 8c 80   ....of..........
+|   2640: 80 80 80 09 03 00 38 00 00 00 14 03 32 66 74 03   ......8.....2ft.
+|   2656: 02 02 01 02 69 73 03 06 01 01 03 04 07 18 8c 80   ....is..........
+|   2672: 80 80 80 08 03 00 36 00 00 00 13 02 31 74 03 08   ......6.....1t..
+|   2688: 03 01 01 04 01 01 77 03 02 04 04 09 1a 8c 80 80   ......w.........
+|   2704: 80 80 07 03 00 3a ff 00 00 15 02 31 6e 03 08 01   .....:.....1n...
+|   2720: 01 02 05 01 01 6f 03 06 01 01 06 04 09 18 8c 80   .....o..........
+|   2736: 80 80 80 06 03 00 36 00 00 00 13 04 02 31 66 03   ......6......1f.
+|   2752: 02 01 f1 01 69 03 06 01 01 03 05 06 1c 8c 80 80   ....i...........
+|   2768: 80 80 05 03 00 3e 00 00 00 17 04 30 74 68 65 03   .....>.....0the.
+|   2784: 06 01 01 14 01 05 77 68 65 72 65 03 02 04 0a 15   ......where.....
+|   2800: 8c 80 80 80 80 04 03 00 30 00 00 00 11 01 01 06   ........0.......
+|   2816: 06 30 74 61 62 6c cc 03 02 03 07 1c 8c 80 80 80   .0tabl..........
+|   2832: 80 03 03 00 3e 00 00 00 17 07 30 6e 75 6d 62 65   ....>.....0numbe
+|   2848: 72 03 06 01 01 05 01 02 6f 66 02 06 04 0d 13 8c   r.......of......
+|   2864: 80 80 80 80 02 03 00 2c 00 00 00 0f 01 01 03 02   .......,........
+|   2880: 30 6e 03 06 01 01 02 07 1b 8c 80 80 80 80 01 03   0n..............
+|   2896: 00 3c 00 00 00 16 08 30 66 74 73 34 61 75 78 03   .<.....0fts4aux.
+|   2912: 02 02 01 02 69 73 03 06 04 0c 00 00 00 14 2a 00   ....is........*.
+|   2928: 00 00 01 01 02 24 00 02 01 01 12 02 01 12 08 88   .....$..........
+|   2944: 80 80 80 80 12 03 00 16 00 00 00 05 02 1c 88 80   ................
+|   2960: 80 80 80 11 03 00 3e 00 00 00 17 05 34 72 6f 77   ......>.....4row
+|   2976: 73 02 06 01 01 05 01 04 74 68 65 72 02 02 04 0b   s.......ther....
+|   2992: 15 88 80 80 80 80 10 03 00 3e 10 00 00 11 02 01   .........>......
+|   3008: 01 07 05 34 62 65 74 77 02 02 04 08 1b 88 80 80   ...4betw........
+|   3024: 80 80 0f 03 00 3c 00 00 00 16 04 04 33 72 6f 77   .....<......3row
+|   3040: 02 06 01 01 05 01 03 74 68 65 02 08 05 0a 1b 88   .......the......
+|   3056: 80 80 80 80 0e 03 05 0c 00 00 00 16 01 01 02 04   ................
+|   3072: 33 61 72 65 02 02 03 01 03 62 65 74 02 02 07 08   3are.....bet....
+|   3088: 1b 88 80 80 80 80 0d 03 00 3c 00 00 00 16 03 32   .........<.....2
+|   3104: 74 68 02 08 02 01 01 07 00 04 33 61 6e 64 02 06   th........3and..
+|   3120: 04 01 1b 88 80 80 80 80 0c 03 00 3c 00 00 00 16   ...........<....
+|   3136: 03 32 69 6e 02 06 01 01 06 01 02 72 6f 02 06 01   .2in.......ro...
+|   3152: 01 05 04 09 18 88 80 80 80 80 0b 03 00 36 00 00   .............6..
+|   3168: 00 13 02 03 32 61 72 02 02 03 01 02 62 65 02 02   ....2ar.....be..
+|   3184: 04 05 07 1b 88 80 bf 80 80 0a 03 00 3c 00 00 00   ............<...
+|   3200: 16 02 31 74 02 08 02 01 01 07 00 03 32 61 6e 02   ..1t........2an.
+|   3216: 06 01 01 04 09 19 88 80 80 80 80 09 03 00 38 00   ..............8.
+|   3232: 00 00 14 02 31 6e 02 06 01 01 03 01 01 72 02 06   ....1n.......r..
+|   3248: 01 01 05 03 08 17 88 80 80 80 80 08 03 00 34 00   ..............4.
+|   3264: 01 00 12 02 31 62 02 02 04 01 01 69 02 06 01 01   ....1b.....i....
+|   3280: 06 04 06 19 88 80 80 80 80 07 03 00 38 00 00 00   ............8...
+|   3296: 14 04 02 31 32 02 02 05 01 01 61 02 08 03 01 01   ...12.....a.....
+|   3312: 02 05 06 1b 88 80 80 80 80 06 03 00 3c 00 00 00   ............<...
+|   3328: 16 06 30 74 68 65 72 65 02 12 02 00 02 31 31 02   ..0there.....11.
+|   3344: 06 01 01 04 0a 15 88 80 80 80 80 05 03 00 30 00   ..............0.
+|   3360: 00 00 11 01 01 05 04 30 74 68 65 02 06 71 01 07   .......0the..q..
+|   3376: 07 1c 88 80 80 80 80 04 03 00 3e 00 00 00 17 01   ..........>.....
+|   3392: 01 06 02 30 6e 02 06 01 01 03 01 04 72 6f 77 73   ...0n.......rows
+|   3408: 02 06 07 08 1b 88 80 80 80 80 03 03 00 3c 00 00   .............<..
+|   3424: 00 16 08 30 62 65 74 77 65 65 6e 02 02 04 01 02   ...0between.....
+|   3440: 69 6e 02 06 04 0c 1a 88 80 80 80 80 02 03 00 3a   in.............:
+|   3456: 08 f0 00 15 04 30 61 6e 64 02 06 01 01 02 02 02   .....0and.......
+|   3472: 72 65 02 02 03 04 0a 17 88 80 80 80 80 01 03 00   re..............
+|   3488: 34 00 00 00 12 02 30 31 02 06 01 01 04 01 01 32   4.....01.......2
+|   3504: 02 02 07 04 08 08 84 80 80 80 80 12 03 00 16 00   ................
+|   3520: 00 00 05 04 1b 84 80 80 80 80 11 03 00 3c 00 00   .............<..
+|   3536: 00 16 05 34 74 61 62 6c 01 06 01 01 05 02 03 65   ...4tabl.......e
+|   3552: 72 6d 01 02 04 0b 1b 84 80 80 80 80 10 03 00 3c   rm.............<
+|   3568: 00 00 00 16 05 34 65 61 63 68 01 02 03 01 04 70   .....4each.....p
+|   3584: 72 65 73 01 02 05 04 09 1a 84 80 80 80 80 0f 03   res.............
+|   3600: 00 3a 00 00 00 15 04 33 74 65 72 01 02 04 02 02   .:.....3ter.....
+|   3616: 68 65 01 06 01 01 03 04 08 1b 84 80 80 80 80 0e   he..............
+|   3632: 03 00 3c 00 00 00 16 04 33 70 72 65 01 02 05 01   ..<.....3pre....
+|   3648: 03 74 61 62 01 06 01 01 05 04 08 1a 84 80 80 80   .tab............
+|   3664: 80 0d 03 00 3a 00 00 00 15 04 33 66 6f 72 01 02   ....:.....3for..
+|   3680: 02 02 02 74 73 01 06 01 01 04 03 f8 1b 84 80 80   ...ts...........
+|   3696: 80 80 0c 03 00 3c 00 00 00 16 03 32 74 68 01 06   .....<.....2th..
+|   3712: 01 01 03 00 04 33 65 61 63 01 02 03 04 09 18 84   .....3eac.......
+|   3728: 80 80 80 80 0b 03 00 36 00 00 00 13 03 32 74 61   .......6.....2ta
+|   3744: 01 06 01 01 05 02 01 65 00 02 04 04 09 19 84 80   .......e........
+|   3760: 80 80 80 0a 03 10 38 00 00 00 14 03 32 69 6e 01   ......8.....2in.
+|   3776: 06 01 01 02 01 02 70 72 01 02 05 04 09 18 84 80   ......pr........
+|   3792: 80 80 80 09 03 00 36 00 00 00 13 03 32 66 6f 01   ......6.....2fo.
+|   3808: 02 02 02 01 74 01 06 01 01 04 04 07 1b 84 80 80   ....t...........
+|   3824: 80 80 08 03 00 3c 00 00 00 16 02 31 74 01 0a 04   .....<.....1t...
+|   3840: 01 00 03 04 00 03 32 65 61 01 02 03 04 0a 17 84   ......2ea.......
+|   3856: 80 80 80 80 07 03 00 34 00 00 00 12 02 31 69 01   .......4.....1i.
+|   3872: 06 01 01 02 de 01 70 01 02 05 04 08 18 84 80 80   ......p.........
+|   3888: 80 80 06 03 00 36 00 00 00 13 02 31 65 01 02 03   .....6.....1e...
+|   3904: 01 01 66 01 08 02 01 01 04 04 06 1b 84 80 80 80   ..f.............
+|   3920: 80 05 03 00 3c 00 00 00 16 05 30 74 65 72 6d 01   ....<.....0term.
+|   3936: 02 04 02 02 68 65 01 06 01 01 03 04 09 14 84 80   ....he..........
+|   3952: 80 80 80 04 03 00 2e 00 00 00 10 06 30 74 61 62   ............0tab
+|   3968: 6c 65 01 06 01 01 05 04 15 84 80 80 80 80 03 03   le..............
+|   3984: 00 30 00 00 00 11 02 08 30 70 72 65 73 65 6e 74   .0......0present
+|   4000: 01 02 05 05 1b 84 80 80 80 80 02 03 00 3c 00 00   .............<..
+|   4016: 00 16 04 30 66 74 73 01 06 01 01 04 01 02 69 6e   ...0fts.......in
+|   4032: 01 06 01 01 04 0a 1a 84 80 80 80 80 01 03 00 3a   ...............:
+|   4048: 00 00 00 15 05 30 65 61 63 68 00 f2 03 01 03 66   .....0each.....f
+|   4064: 6f 72 01 02 02 04 09 06 01 03 00 12 03 0b 0f 00   or..............
+|   4080: 00 08 8c 80 80 80 80 11 03 00 16 00 00 00 05 04   ................
+| page 3 offset 8192
+|      0: 0a 00 00 00 32 0e 4f 00 0f fa 0f f1 0f e9 0f e1   ....2.O.........
+|     16: 0f d8 0f d1 0f c9 0f c1 0f b9 0f c1 0f a9 0f a0   ................
+|     32: 0f 98 0f 90 0f 87 0f 80 0f 78 0f 71 0f 68 0f 5f   .........x.q.h._
+|     48: 0f 56 0f 4d 0f 41 0f 38 0f 2f 0f 26 0f 1d 0f 13   .V.M.A.8./.&....
+|     64: 0f 0a 0f 01 0e f7 0e ee 0e e6 0e dd 0e d7 0e cd   ................
+|     80: 0e c3 0e ba 0e b0 0e a8 0e 9f 0e 96 0e 8e 0e 85   ................
+|   3648: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08   ................
+|   3664: 04 01 10 01 03 34 74 20 07 04 01 0e 01 03 34 1e   .....4t ......4.
+|   3680: 09 04 01 12 34 03 33 74 68 1c 08 04 01 10 01 03   ....4.3th.......
+|   3696: 33 6e 1a 08 04 01 10 01 03 32 77 18 08 04 01 10   3n.......2w.....
+|   3712: 01 03 32 74 16 08 04 01 10 01 03 32 6e 14 07 04   ..2t.......2n...
+|   3728: 01 0e 01 03 32 12 08 04 01 0f f1 03 31 74 10 08   ....2.......1t..
+|   3744: 04 01 10 01 03 31 6e 0e 07 04 01 0e 01 03 30 fc   .....1n.......0.
+|   3760: 09 04 01 12 01 03 30 74 68 0a 08 04 01 10 01 03   ......0th.......
+|   3776: 30 74 08 09 04 01 12 01 03 30 6e 75 06 08 04 01   0t.......0nu....
+|   3792: 10 01 03 30 6e 04 06 04 01 0c 01 05 52 08 04 01   ...0n.......R...
+|   3808: 10 01 02 34 72 22 07 04 01 0e 01 02 34 20 08 04   ...4r.......4 ..
+|   3824: 01 10 01 02 33 72 1e 09 04 01 12 01 02 33 61 72   ....3r.......3ar
+|   3840: 1c 08 04 01 10 01 02 32 74 1a 08 04 01 10 b3 02   .......2t.......
+|   3856: 32 69 18 09 04 01 12 01 02 32 61 72 16 08 04 01   2i.......2ar....
+|   3872: 10 01 02 31 74 14 08 04 01 10 01 02 31 6e 12 08   ...1t.......1n..
+|   3888: 04 01 10 01 02 31 62 10 08 04 01 10 01 02 31 32   .....1b.......12
+|   3904: 0e 0b 04 01 16 01 02 30 74 68 65 72 0c 08 04 01   .......0ther....
+|   3920: 10 01 02 30 74 0a 08 04 01 10 01 02 30 6e 08 08   ...0t.......0n..
+|   3936: 04 01 10 01 02 30 62 06 09 04 01 10 01 02 30 61   .....0b.......0a
+|   3952: 04 06 04 01 0c 01 02 02 07 04 09 10 01 34 74 22   .............4t.
+|   3968: 06 04 09 0e 01 34 20 08 04 09 12 01 33 74 65 1e   .....4 .....3te.
+|   3984: 07 04 09 10 01 33 70 1c 07 f4 09 11 01 33 66 1a   .....3p......3f.
+|   4000: 08 04 09 12 01 32 74 68 18 07 04 09 10 01 32 e4   .....2th......2.
+|   4016: 16 07 04 09 10 01 32 69 14 07 04 09 10 01 32 66   ......2i......2f
+|   4032: 12 07 04 09 10 01 31 74 10 07 04 09 10 01 31 69   ......1t......1i
+|   4048: 0e 06 04 09 0e 01 31 0c 08 04 09 12 01 30 74 65   ......1......0te
+|   4064: 0a 07 04 09 10 01 30 74 08 00 00 00 00 00 00 00   ......0t........
+| page 4 offset 12288
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 05 03 03 00 10   ................
+|   4080: 03 05 05 02 03 00 10 04 06 05 01 03 00 10 04 04   ................
+| page 5 offset 16384
+|      0: 0a 00 00 00 02 0f eb 00 0f eb 0f f4 00 00 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 08 03 15 01 70   ...............p
+|   4080: 67 73 7a 18 0b 03 1b 01 76 65 72 73 69 6f 6e 04   gsz.....version.
+| page 6 offset 20480
+|   4080: 00 00 23 03 02 01 03 03 02 00 00 00 00 00 00 00   ..#.............
+| end crash-5a5acd0ab42d31.db
+}]} {}
+
+do_catchsql_test 58.1 {
+  SELECT * FROM t1('t*');
+} {/*malformed database schema*/}
+
+#-------------------------------------------------------------------------
+do_test 59.0 {
+  sqlite3 db {}
+  sqlite3_fts5_register_matchinfo db
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 32768 pagesize 4096 filename crash-96b136358d01ec.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 00   .....@  ........
+|     96: 00 00 00 00 0d 0f c7 00 07 0d 92 00 0f 8d 0f 36   ...............6
+|    112: 0e cb 0e 6b 0e 0e 0d b6 0d 92 00 00 00 00 00 00   ...k............
+|   3472: 00 00 22 08 06 17 11 11 01 31 74 61 62 6c 65 74   .........1tablet
+|   3488: 32 74 32 08 43 52 45 41 54 45 20 54 41 42 4c 45   2t2.CREATE TABLE
+|   3504: 20 74 32 28 78 29 56 07 06 17 1f 1f 01 7d 74 61    t2(x)V.......ta
+|   3520: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   blet1_configt1_c
+|   3536: 6f 6e 66 69 67 07 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
+|   3552: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
+|   3568: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
+|   3584: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 06    WITHOUT ROWID[.
+|   3600: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64   ..!!...tablet1_d
+|   3616: 6f 63 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65   ocsizet1_docsize
+|   3632: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
+|   3648: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
+|   3664: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
+|   3680: 59 2c 20 73 7a 20 42 4c 4f 42 29 5e 05 07 17 21   Y, sz BLOB)^...!
+|   3696: 21 01 81 07 74 61 62 6c 65 74 31 5f 63 6f 6e 74   !...tablet1_cont
+|   3712: 65 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 05 43 52   entt1_content.CR
+|   3728: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63   EATE TABLE 't1_c
+|   3744: 6f 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47   ontent'(id INTEG
+|   3760: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
+|   3776: 63 30 2c 20 63 31 2c d6 63 32 29 69 04 07 17 19   c0, c1,.c2)i....
+|   3792: 19 01 81 2d 74 61 62 6c 65 74 31 5f 69 64 78 74   ...-tablet1_idxt
+|   3808: 31 5f 69 64 78 04 43 52 45 41 54 45 20 54 41 42   1_idx.CREATE TAB
+|   3824: 4c 45 20 27 74 31 5f 69 64 78 27 28 73 65 67 69   LE 't1_idx'(segi
+|   3840: 64 2c 20 74 65 72 6d 2c 20 70 67 6e 6f 2c 20 50   d, term, pgno, P
+|   3856: 52 49 4d 41 52 59 20 4b 45 59 28 73 65 67 69 64   RIMARY KEY(segid
+|   3872: 2c 20 74 65 72 6d 29 29 20 57 49 54 48 4f 55 54   , term)) WITHOUT
+|   3888: 20 52 4f 57 49 44 55 03 07 17 1b 1b 01 81 01 74    ROWIDU........t
+|   3904: 61 62 6c 65 74 31 5f 64 61 74 61 74 31 5f 64 61   ablet1_datat1_da
+|   3920: 74 61 03 43 52 45 41 54 45 20 54 41 42 4c 45 20   ta.CREATE TABLE 
+|   3936: 27 74 31 5f 64 61 74 61 27 28 69 64 20 49 4e 54   't1_data'(id INT
+|   3952: 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59   EGER PRIMARY KEY
+|   3968: 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42 29 38 02 06   , block BLOB)8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 35   LE t1 USING fts5
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 00 00 00 00 00 00   (a,b,c).........
+| page 3 offset 8192
+|      0: 0d 00 00 00 03 0c 93 ff 0f e6 0f ef 0c 94 00 00   ................
+|   3216: 00 00 00 00 86 4a 84 80 80 80 80 01 04 00 8d 18   .....J..........
+|   3232: 00 00 03 2b 02 30 30 01 02 06 01 02 06 01 02 06   ...+.00.........
+|   3248: 1f 02 03 01 02 03 01 02 03 01 08 32 31 31 36 30   ...........21160
+|   3264: 36 30 39 01 02 07 01 02 07 01 02 07 01 01 33 f1   609...........3.
+|   3280: 02 05 01 02 05 01 02 05 01 01 35 01 02 03 01 02   ..........5.....
+|   3296: 04 01 02 04 02 07 30 30 30 30 30 30 30 1c 02 3d   ......0000000..=
+|   3312: 01 02 04 01 02 04 01 06 62 69 6e 61 72 79 03 06   ........binary..
+|   3328: 01 02 02 03 06 01 01 f2 03 06 4e 02 02 03 06 01   ..........N.....
+|   3344: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3360: 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02   ................
+|   3376: 03 06 01 02 02 03 06 01 02 02 01 08 63 6f 6d 70   ............comp
+|   3392: 69 6c 65 72 01 02 02 01 02 02 01 02 02 01 06 64   iler...........d
+|   3408: 62 73 74 61 74 07 02 03 01 02 13 01 02 03 02 04   bstat...........
+|   3424: 65 62 75 67 04 02 02 01 02 02 01 02 02 01 07 65   ebug...........e
+|   3440: 6e 61 62 6c 65 07 02 02 01 02 02 01 02 02 01 02   nable...........
+|   3456: 02 01 02 02 01 02 02 01 02 02 01 02 02 01 02 02   ................
+|   3472: 01 02 02 01 02 02 01 02 01 f1 02 02 01 02 02 01   ................
+|   3488: 02 02 01 02 02 01 02 02 01 02 02 01 02 02 01 02   ................
+|   3504: 02 01 02 02 02 08 78 74 65 6e 73 69 6f 6e 1f 02   ......xtension..
+|   3520: 04 01 02 04 01 02 04 01 04 66 74 73 34 0a 02 03   .........fts4...
+|   3536: 01 02 03 01 02 03 04 01 25 0d 02 03 01 02 03 01   ........%.......
+|   3552: 02 03 01 03 67 63 63 01 02 03 01 02 03 01 02 03   ....gcc.........
+|   3568: 02 06 65 6f 70 6f 6c 79 0f f2 03 01 02 03 01 02   ..eopoly........
+|   3584: 03 01 05 6a 73 6f 6e 31 13 02 03 01 02 03 01 02   ...json1........
+|   3600: 03 01 04 6c 6f 61 64 1f 02 03 01 02 03 01 02 03   ...load.........
+|   3616: 00 03 6d 61 78 1c 02 02 01 02 02 01 02 02 02 05   ..max...........
+|   3632: 65 6d 6f 72 79 1c 02 03 01 02 03 01 02 03 04 04   emory...........
+|   3648: 73 79 73 35 16 02 03 01 02 03 01 02 03 01 06 6e   sys5...........n
+|   3664: 6f 63 61 73 65 02 06 01 02 02 13 06 00 f2 02 03   ocase...........
+|   3680: 06 01 02 02 13 06 01 02 02 03 06 01 02 02 03 06   ................
+|   3696: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3712: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3728: 02 01 04 6f 6d 69 74 1f 02 02 01 02 02 01 02 02   ...omit.........
+|   3744: 01 0a 22 74 72 65 65 19 02 03 01 02 03 01 02 03   ...tree.........
+|   3760: 04 02 69 6d 01 06 01 02 02 03 06 01 02 02 03 06   ..im............
+|   3776: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3792: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3808: 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02   ................
+|   3824: 01 0a 74 68 72 65 61 64 73 61 66 65 22 02 02 01   ..threadsafe....
+|   3840: 02 02 01 02 02 01 04 76 74 61 62 07 02 04 01 02   .......vtab.....
+|   3856: 04 01 02 04 01 01 78 01 06 01 01 02 01 06 01 01   ......x.........
+|   3872: 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02   ................
+|   3888: 01 06 01 11 02 01 06 01 01 02 01 06 01 01 02 01   ................
+|   3904: 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06   ................
+|   3920: 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01   ................
+|   3936: 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01   ................
+|   3952: 02 01 06 01 01 01 f1 06 01 01 02 ad 06 01 01 02   ................
+|   3968: 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01   ................
+|   3984: 06 01 01 01 01 06 01 01 02 01 06 01 01 02 01 06   ................
+|   4000: 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01   ................
+|   4016: 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01   ................
+|   4032: 02 01 06 01 01 02 01 06 01 01 02 04 15 13 0c 0c   ................
+|   4048: 12 44 13 11 0f 47 13 0e fc 0e 11 10 0f 0e 10 0f   .D...G..........
+|   4064: 44 0f 10 40 15 0f 07 01 03 00 14 24 5a 24 24 0f   D..@.......$Z$$.
+|   4080: 0a 03 00 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 4 offset 12288
+|      0: 0a 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
+| page 5 offset 16384
+|      0: 0d 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   3072: 00 00 00 00 00 00 00 00 00 00 18 24 05 00 25 0f   ...........$..%.
+|   3088: 19 54 48 52 45 41 44 53 41 46 45 3d 30 58 42 49   .THREADSAFE=0XBI
+|   3104: 4e 41 52 59 18 23 05 00 25 0f 19 54 48 52 45 41   NARY.#..%..THREA
+|   3120: 44 53 41 46 45 3d 30 58 4e 4f 43 41 53 45 17 8f   DSAFE=0XNOCASE..
+|   3136: 05 00 25 0f 17 54 48 52 45 41 44 53 41 46 45 3d   ..%..THREADSAFE=
+|   3152: 30 58 52 54 52 49 4d 1f 21 05 00 33 0f 19 45 ed   0XRTRIM.!..3..E.
+|   3168: 49 54 20 4c 4f 41 44 21 45 58 54 45 4e 53 49 4f   IT LOAD!EXTENSIO
+|   3184: 4e 58 42 49 4e 41 52 59 1f 20 05 00 33 0f 19 4f   NXBINARY. ..3..O
+|   3200: 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 5a 29   MIT LOAD EXTENZ)
+|   3216: 4f 4e 58 4e 4f 43 41 53 45 1e 1f 05 00 33 0f 17   ONXNOCASE....3..
+|   3232: 4f 4d 59 54 20 4c 4f 41 44 20 45 58 54 45 4e 53   OMYT LOAD EXTENS
+|   3248: 49 4f 4e 58 52 54 56 a9 4d 1f 1e 05 00 33 0f 19   IONXRTV.M....3..
+|   3264: 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30 30   MAX MEMORY=50000
+|   3280: 30 30 30 57 42 49 4e 31 52 59 1f 1d 05 00 33 0f   000WBIN1RY....3.
+|   3296: 19 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30   .MAX MEMORY=5000
+|   3312: 30 30 30 30 58 4e 4f 43 41 53 45 1e 1c 05 00 32   0000XNOCASE....2
+|   3328: 0f 17 4e 41 58 20 4d 45 4d 4f 52 59 2d 35 30 30   ..NAX MEMORY-500
+|   3344: 30 30 30 30 30 58 52 54 52 49 4d 18 1b 05 00 25   00000XRTRIM....%
+|   3360: 0f 19 45 4e 41 42 4c 45 20 52 54 52 45 45 58 42   ..ENABLE RTREEXB
+|   3376: 49 4e 41 52 59 18 1a 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3392: 4c 45 20 52 54 52 45 45 59 4e 4f 43 41 53 45 17   LE RTREEYNOCASE.
+|   3408: 19 66 00 25 0f 17 45 4e 41 42 4c 45 20 52 54 52   .f.%..ENABLE RTR
+|   3424: 45 45 58 52 54 52 49 4d 1a 18 05 00 29 0f 19 45   EEXRTRIM....)..E
+|   3440: 4e 41 42 4c 45 20 4d 45 4d 53 59 53 35 58 42 49   NABLE MEMSYS5XBI
+|   3456: 4e 41 52 59 1a 17 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3472: 45 20 4d 45 4d 53 59 53 35 58 4e 4f 43 41 53 45   E MEMSYS5XNOCASE
+|   3488: 19 16 05 00 29 0f 17 45 4e 41 42 4c 45 20 4d 45   ....)..ENABLE ME
+|   3504: 4d 53 59 76 35 58 52 54 52 49 4d 18 15 05 10 25   MSYv5XRTRIM....%
+|   3520: 0f 19 45 4e 40 42 4c 45 20 4a 53 4f 4e 31 58 42   ..EN@BLE JSON1XB
+|   3536: 49 4e 41 52 59 18 14 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3552: 4c 45 20 4a 53 4f 4e 32 58 4e 4f 43 41 53 45 17   LE JSON2XNOCASE.
+|   3568: 13 05 00 25 0f 17 45 4e 41 42 4c 45 20 4a 53 4f   ...%..ENABLE JSO
+|   3584: 4e 31 58 52 54 52 49 4d 1a 12 05 00 29 0f 19 45   N1XRTRIM....)..E
+|   3600: 4e 41 42 4c 45 20 47 45 4f 50 4f 4c 59 58 42 49   NABLE GEOPOLYXBI
+|   3616: 4e 41 52 59 1a 11 05 00 29 0f 19 45 5f 81 42 4c   NARY....)..E_.BL
+|   3632: 45 20 47 45 4f 50 4f 4c 59 58 4e 4f 43 51 53 45   E GEOPOLYXNOCQSE
+|   3648: 19 10 05 00 29 0f 17 45 4e 41 42 4c 45 20 47 45   ....)..ENABLE GE
+|   3664: 4f 50 4f 4c 59 58 52 54 52 49 4d 17 0f 05 00 23   OPOLYXRTRIM....#
+|   3680: 0f 1a 45 4e 41 42 4c 45 20 56 54 43 35 58 42 49   ..ENABLE VTC5XBI
+|   3696: 4e 41 52 59 17 0e 05 00 23 0f 19 45 4e 41 42 4c   NARY....#..ENABL
+|   3712: 45 20 46 54 53 35 48 4e 4f 43 41 53 45 16 1d 05   E FTS5HNOCASE...
+|   3728: 00 23 0f a4 45 4e 41 42 4c 45 20 46 54 53 35 58   .#..ENABLE FTS5X
+|   3744: 52 54 52 49 4d 17 0c 05 00 23 0f 19 45 4e 41 42   RTRIM....#..ENAB
+|   3760: 4c 45 20 46 55 53 34 58 42 49 4e 41 52 59 17 0b   LE FUS4XBINARY..
+|   3776: 05 00 23 0f 19 45 4e 41 42 4c 45 20 46 54 53 34   ..#..ENABLE FTS4
+|   3792: 57 4e 4f 43 41 53 45 16 0a 05 00 23 0f 17 45 4e   WNOCASE....#..EN
+|   3808: 41 42 4c 45 20 46 54 53 34 05 52 54 52 49 4d 1e   ABLE FTS4.RTRIM.
+|   3824: 09 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3840: 54 41 54 20 56 54 41 42 58 42 49 4e 41 52 59 1e   TAT VTABXBINARY.
+|   3856: 08 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3872: 54 41 54 20 56 54 41 42 58 4e 4f 43 41 53 45 1d   TAT VTABXNOCASE.
+|   3888: 07 05 00 31 0f 17 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3904: 54 41 54 20 56 54 41 42 58 52 54 52 49 4d 11 06   TAT VTABXRTRIM..
+|   3920: 05 00 17 0f 19 44 45 42 55 47 58 42 49 4e 41 52   .....DEBUGXBINAR
+|   3936: 59 11 05 05 00 17 0f 19 44 45 42 55 47 58 4e 4f   Y.......DEBUGXNO
+|   3952: 43 41 53 45 10 04 05 00 17 0f 17 44 45 42 55 47   CASE.......DEBUG
+|   3968: 58 52 54 52 49 4d 27 03 05 00 43 0f 19 43 4f 4d   XRTRIM'...C..COM
+|   3984: 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e 30 20   PILER=gcc-5.4.0 
+|   4000: 32 30 31 36 30 36 30 39 58 42 49 4e 41 52 59 27   20160609XBINARY'
+|   4016: 02 05 00 43 0f 19 43 4f 4d 50 49 4c 45 52 3f 87   ...C..COMPILER?.
+|   4032: 63 63 2d 35 2e 34 2e 30 20 32 30 31 36 30 36 30   cc-5.4.0 2016060
+|   4048: 39 58 4e 4f 43 41 53 45 26 01 05 00 43 0f 17 43   9XNOCASE&...C..C
+|   4064: 45 0d 60 59 4c 45 52 3d 67 63 63 2d 35 2e 34 00   E.`YLER=gcc-5.4.
+| page 6 offset 20480
+|   3808: 06 24 03 00 12 02 01 01 06 23 03 00 12 02 01 01   .$.......#......
+|   3824: 06 22 03 01 12 02 01 01 06 21 03 00 12 03 01 01   .........!......
+|   3840: 06 20 03 00 12 03 01 01 06 1f 03 00 12 03 02 01   . ..............
+|   3856: 06 1e 03 00 12 03 01 01 06 1d 03 00 12 03 01 01   ................
+|   3872: 06 1c 03 00 12 03 01 01 06 1b 03 00 12 02 01 01   ................
+|   3888: 06 1a 03 00 12 02 01 01 06 19 03 00 12 02 01 01   ................
+|   3904: 06 18 03 00 12 02 01 01 06 17 03 00 12 02 01 01   ................
+|   3920: 06 16 03 00 12 02 01 01 06 15 03 00 12 02 01 01   ................
+|   3936: 06 14 03 00 12 02 01 01 06 13 03 00 12 02 01 01   ................
+|   3952: 06 12 03 00 12 02 01 01 06 11 03 00 12 02 01 01   ................
+|   3968: 06 00 03 00 12 02 01 01 06 0f 03 00 12 02 01 01   ................
+|   3984: 06 0e 03 00 12 02 01 01 06 0d 03 00 12 02 01 01   ................
+|   4000: 06 0c 03 00 12 02 01 01 06 0b 03 10 12 02 01 01   ................
+|   4016: 06 0a 03 00 12 02 01 01 06 09 03 00 12 03 01 01   ................
+|   4032: 06 08 03 00 12 03 01 01 06 07 03 00 12 03 01 01   ................
+|   4048: 07 06 03 00 12 01 01 01 06 05 03 00 12 01 01 01   ................
+|   4064: 06 04 03 00 12 01 01 01 06 03 03 00 12 06 01 01   ................
+|   4080: 06 02 03 00 12 06 01 01 06 01 03 00 12 06 01 01   ................
+| page 7 offset 24576
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 8 offset 28672
+|   4048: 00 00 00 00 00 00 5d 03 02 2b 69 6e 74 00 00 00   ......]..+int...
+| end crash-96b136358d01ec.db
+}]} {}
+
+do_catchsql_test 59.1 {
+  SELECT (matchinfo(591,t1)) FROM t1 WHERE t1 MATCH 'e*eŸ'
+} {0 {}}
+
+#-------------------------------------------------------------------------
+do_test 60.0 {
+  sqlite3 db {}
+  sqlite3_fts5_register_matchinfo db
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 32768 pagesize 4096 filename crash-c77b90b929dc92.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 00   .....@  ........
+|     96: 00 00 00 00 0d 0f c7 00 07 0d 92 00 0f 8d 0f 36   ...............6
+|    112: 0e cb 0e 6b 0e 0e 0d b6 0d 92 00 00 00 00 00 00   ...k............
+|   3472: 00 00 22 08 06 17 11 11 01 31 74 61 62 6c 65 74   .........1tablet
+|   3488: 32 74 32 08 43 52 45 41 54 45 20 54 41 42 4c 45   2t2.CREATE TABLE
+|   3504: 20 74 32 28 78 29 56 07 06 17 1f 1f 01 7d 74 61    t2(x)V.......ta
+|   3520: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   blet1_configt1_c
+|   3536: 6f 6e 66 69 67 07 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
+|   3552: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
+|   3568: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
+|   3584: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 06    WITHOUT ROWID[.
+|   3600: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64   ..!!...tablet1_d
+|   3616: 6f 63 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65   ocsizet1_docsize
+|   3632: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
+|   3648: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
+|   3664: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
+|   3680: 59 2c 20 73 7a 20 42 4c 4f 42 29 5e 05 07 17 21   Y, sz BLOB)^...!
+|   3696: 21 01 81 07 74 61 62 6c 65 74 31 5f 63 6f 6e 74   !...tablet1_cont
+|   3712: 65 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 05 43 52   entt1_content.CR
+|   3728: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63   EATE TABLE 't1_c
+|   3744: 6f 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47   ontent'(id INTEG
+|   3760: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
+|   3776: 63 30 2c 20 63 31 2c d6 63 32 29 69 04 07 17 19   c0, c1,.c2)i....
+|   3792: 19 01 81 2d 74 61 62 6c 65 74 31 5f 69 64 78 74   ...-tablet1_idxt
+|   3808: 31 5f 69 64 78 04 43 52 45 41 54 45 20 54 41 42   1_idx.CREATE TAB
+|   3824: 4c 45 20 27 74 31 5f 69 64 78 27 28 73 65 67 69   LE 't1_idx'(segi
+|   3840: 64 2c 20 74 65 72 6d 2c 20 70 67 6e 6f 2c 20 50   d, term, pgno, P
+|   3856: 52 49 4d 41 52 59 20 4b 45 59 28 73 65 67 69 64   RIMARY KEY(segid
+|   3872: 2c 20 74 65 72 6d 29 29 20 57 49 54 48 4f 55 54   , term)) WITHOUT
+|   3888: 20 52 4f 57 49 44 55 03 07 17 1b 1b 01 81 01 74    ROWIDU........t
+|   3904: 61 62 6c 65 74 31 5f 64 61 74 61 74 31 5f 64 61   ablet1_datat1_da
+|   3920: 74 61 03 43 52 45 41 54 45 20 54 41 42 4c 45 20   ta.CREATE TABLE 
+|   3936: 27 74 31 5f 64 61 74 61 27 28 69 64 20 49 4e 54   't1_data'(id INT
+|   3952: 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59   EGER PRIMARY KEY
+|   3968: 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42 29 38 02 06   , block BLOB)8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 35   LE t1 USING fts5
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 00 00 00 00 00 00   (a,b,c).........
+| page 3 offset 8192
+|      0: 0d 00 00 00 03 0c 93 ff 0f e6 0f ef 0c 94 00 00   ................
+|   3216: 00 00 00 00 86 4a 84 80 80 80 80 01 04 00 8d 18   .....J..........
+|   3232: 00 00 03 2b 02 30 30 01 02 06 01 02 06 01 02 06   ...+.00.........
+|   3248: 1f 02 03 01 02 03 01 02 03 01 08 32 31 31 36 30   ...........21160
+|   3264: 36 30 39 01 02 07 01 02 07 01 02 07 01 01 33 f1   609...........3.
+|   3280: 02 05 01 02 05 01 02 05 01 01 35 01 02 03 01 02   ..........5.....
+|   3296: 04 01 02 04 02 07 30 30 30 30 30 30 30 1c 02 3d   ......0000000..=
+|   3312: 01 02 04 01 02 04 01 06 62 69 6e 61 72 79 03 06   ........binary..
+|   3328: 01 02 02 03 06 01 01 f2 03 06 4e 02 02 03 06 01   ..........N.....
+|   3344: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3360: 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02   ................
+|   3376: 03 06 01 02 02 03 06 01 02 02 01 08 63 6f 6d 70   ............comp
+|   3392: 69 6c 65 72 01 02 02 01 02 02 01 02 02 01 06 64   iler...........d
+|   3408: 62 73 74 61 74 07 02 03 01 02 13 01 02 03 02 04   bstat...........
+|   3424: 65 62 75 67 04 02 02 01 02 02 01 02 02 01 07 65   ebug...........e
+|   3440: 6e 61 62 6c 65 07 02 02 01 02 02 01 02 02 01 02   nable...........
+|   3456: 02 01 02 02 01 02 02 01 02 02 01 02 02 01 02 02   ................
+|   3472: 01 02 02 01 02 02 01 02 02 01 02 02 01 02 02 01   ................
+|   3488: 02 02 01 02 02 01 02 02 01 02 02 01 02 02 01 02   ................
+|   3504: 02 01 02 02 02 08 76 b4 65 6e 73 69 6f 6e 1f 02   ......v.ension..
+|   3520: 04 01 02 04 01 02 04 01 04 66 74 73 34 0a 02 03   .........fts4...
+|   3536: 01 02 03 01 02 03 04 01 25 0d 02 03 01 02 03 01   ........%.......
+|   3552: 02 03 01 03 67 63 63 01 02 03 01 02 03 01 02 03   ....gcc.........
+|   3568: 02 06 65 6f 70 6f 6c 79 0f f2 03 01 02 03 01 02   ..eopoly........
+|   3584: 03 01 05 6a 73 6f 6e 31 13 02 03 01 02 03 01 02   ...json1........
+|   3600: 03 01 04 6c 6f 61 64 1f 02 03 01 02 03 01 02 03   ...load.........
+|   3616: 00 03 6d 61 78 1c 02 0c 01 02 02 01 02 02 02 05   ..max...........
+|   3632: 65 6d 6f 72 79 1c 02 03 01 02 03 01 02 03 04 04   emory...........
+|   3648: 73 79 73 35 16 02 03 01 02 03 01 02 03 01 06 6e   sys5...........n
+|   3664: 6f 63 61 73 65 02 06 01 02 02 13 06 00 f2 02 03   ocase...........
+|   3680: 06 01 12 02 13 06 01 02 02 03 06 01 02 02 03 06   ................
+|   3696: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3712: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3728: 02 01 04 6f 6d 69 74 1f 02 02 01 02 02 01 02 02   ...omit.........
+|   3744: 01 05 72 74 72 65 65 19 02 03 01 02 03 01 02 03   ..rtree.........
+|   3760: 04 02 69 6d 01 06 01 02 02 03 06 01 02 02 03 06   ..im............
+|   3776: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3792: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3808: 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02   ................
+|   3824: 01 0a 74 68 72 65 61 64 73 61 66 65 22 02 02 01   ..threadsafe....
+|   3840: 02 02 01 02 02 01 04 76 74 61 62 07 02 04 01 02   .......vtab.....
+|   3856: 04 01 02 04 01 01 78 01 06 01 01 02 01 06 01 01   ......x.........
+|   3872: 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02   ................
+|   3888: 01 06 01 11 02 01 06 01 01 02 01 06 01 01 02 01   ................
+|   3904: 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06   ................
+|   3920: 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01   ................
+|   3936: 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01   ................
+|   3952: 02 01 06 01 01 01 f1 06 01 01 02 ad 06 01 01 02   ................
+|   3968: 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01   ................
+|   3984: 06 01 01 01 01 06 01 01 02 01 06 01 01 02 01 06   ................
+|   4000: 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01   ................
+|   4016: 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01   ................
+|   4032: 02 01 06 01 01 02 01 06 01 01 02 04 15 13 0c 0c   ................
+|   4048: 12 44 13 11 0f 47 13 0e fc 0e 11 10 0f 0e 10 0f   .D...G..........
+|   4064: 44 0f 10 40 15 0f 07 01 03 00 14 24 5a 24 24 0f   D..@.......$Z$$.
+|   4080: 0a 03 00 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 4 offset 12288
+|      0: 0a 00 00 00 01 0f 00 00 00 00 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
+| page 5 offset 16384
+|      0: 0d 00 00 00 24 0c 0a 00 0f 00 00 00 00 00 00 00   ....$...........
+|   3072: 00 00 00 00 00 00 00 00 00 00 18 24 05 00 25 0f   ...........$..%.
+|   3088: 19 54 48 52 45 41 44 53 41 46 45 3d 30 58 42 49   .THREADSAFE=0XBI
+|   3104: 4e 41 52 59 18 23 05 00 25 0f 19 54 48 52 45 41   NARY.#..%..THREA
+|   3120: 44 53 41 46 45 3d 30 58 4e 4f 43 41 53 45 17 8f   DSAFE=0XNOCASE..
+|   3136: 05 00 25 0f 17 54 48 52 45 41 44 43 41 46 45 3d   ..%..THREADCAFE=
+|   3152: 30 58 52 54 52 49 4d 1f 21 05 00 33 0f 19 4f 4d   0XRTRIM.!..3..OM
+|   3168: 49 54 20 4b 4f 41 44 21 45 58 54 45 4e 53 49 4f   IT KOAD!EXTENSIO
+|   3184: 4e 58 42 49 4e 41 52 59 1f 20 05 00 33 0f 19 4f   NXBINARY. ..3..O
+|   3200: 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49   MIT LOAD EXTENSI
+|   3216: 4f 4e 58 4e 4f 43 41 53 45 1e 1f 05 00 33 0f 17   ONXNOCASE....3..
+|   3232: 4f 4d 59 54 20 4c 4f 41 44 20 45 58 54 45 4e 53   OMYT LOAD EXTENS
+|   3248: 49 4f 4e 58 52 54 56 a9 4d 1f 1e 05 00 33 0f 19   IONXRTV.M....3..
+|   3264: 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30 30   MAX MEMORY=50000
+|   3280: 30 30 30 57 42 49 4e 31 52 59 1f 1d 05 00 33 0f   000WBIN1RY....3.
+|   3296: 19 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30   .MAX MEMORY=5000
+|   3312: 30 30 30 30 58 4e 4f 43 41 53 45 1e 1c 05 00 32   0000XNOCASE....2
+|   3328: 0f 17 4e 41 58 20 4d 45 4d 4f 52 59 2d 35 30 30   ..NAX MEMORY-500
+|   3344: 30 30 30 30 30 58 52 54 52 49 4d 18 1b 05 00 25   00000XRTRIM....%
+|   3360: 0f 19 45 4e 41 42 4c 45 20 52 54 52 45 45 58 42   ..ENABLE RTREEXB
+|   3376: 49 4e 41 52 59 18 1a 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3392: 4c 45 20 52 54 52 45 45 59 4e 4f 43 41 53 45 17   LE RTREEYNOCASE.
+|   3408: 19 66 00 25 0f 17 45 4e 41 42 4c 45 20 52 54 52   .f.%..ENABLE RTR
+|   3424: 45 45 58 52 54 52 49 4d 1a 18 05 00 29 0f 19 45   EEXRTRIM....)..E
+|   3440: 4e 41 42 4c 45 20 4d 45 4d 53 59 53 35 58 42 49   NABLE MEMSYS5XBI
+|   3456: 4e 41 52 59 1a 17 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3472: 45 20 4d 45 4d 53 59 53 35 58 4e 4f 43 41 53 45   E MEMSYS5XNOCASE
+|   3488: 19 16 05 00 29 0f 17 45 4e 41 42 4c 45 20 4d 45   ....)..ENABLE ME
+|   3504: 4d 53 59 53 35 58 52 54 52 49 4d 18 15 05 10 25   MSYS5XRTRIM....%
+|   3520: 0f 19 45 4e 40 42 4c 45 20 4a 53 4f 4e 31 58 42   ..EN@BLE JSON1XB
+|   3536: 49 4e 41 52 59 18 14 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3552: 4c 45 20 4a 53 4f 4e 32 58 4e 4f 43 41 53 45 17   LE JSON2XNOCASE.
+|   3568: 13 05 00 25 0f 17 45 4e 41 42 4c 45 20 4a 53 4f   ...%..ENABLE JSO
+|   3584: 4e 31 58 52 54 52 49 4d 1a 12 05 00 29 0f 19 45   N1XRTRIM....)..E
+|   3600: 4e 41 42 4c 45 20 47 45 4f 50 4f 4c 59 58 42 49   NABLE GEOPOLYXBI
+|   3616: 4e 41 52 59 1a 11 05 00 29 0f 19 45 4f 81 42 4c   NARY....)..EO.BL
+|   3632: 45 20 47 45 4f 50 4f 4c 59 58 4e 4f 43 51 53 45   E GEOPOLYXNOCQSE
+|   3648: 19 10 05 00 29 0f 17 45 4e 41 42 4c 45 20 47 45   ....)..ENABLE GE
+|   3664: 4f 50 4f 4c 59 58 52 54 52 49 4d 17 0f 05 00 23   OPOLYXRTRIM....#
+|   3680: 0f 1a 45 4e 41 42 4c 45 20 46 54 53 35 58 42 49   ..ENABLE FTS5XBI
+|   3696: 4e 41 52 59 17 0e 05 00 23 0f 19 45 4e 41 42 4c   NARY....#..ENABL
+|   3712: 45 20 46 54 53 35 48 4e 4f 43 41 53 45 16 1d 05   E FTS5HNOCASE...
+|   3728: 00 23 0f a4 45 4e 41 42 4c 45 20 46 54 53 35 58   .#..ENABLE FTS5X
+|   3744: 52 54 52 49 4d 17 0c 05 00 23 0f 19 45 4e 41 42   RTRIM....#..ENAB
+|   3760: 4c 45 20 46 55 53 34 58 42 49 4e 41 52 59 17 0b   LE FUS4XBINARY..
+|   3776: 05 00 23 0f 19 45 4e 41 42 4c 45 20 46 54 53 34   ..#..ENABLE FTS4
+|   3792: 57 4e 4f 43 41 53 45 16 0a 05 00 23 0f 17 45 4e   WNOCASE....#..EN
+|   3808: 41 42 4c 45 20 46 54 53 34 05 52 54 52 49 4d 1e   ABLE FTS4.RTRIM.
+|   3824: 09 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3840: 54 41 54 20 56 54 41 42 58 42 49 4e 41 52 59 1e   TAT VTABXBINARY.
+|   3856: 08 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3872: 54 41 54 20 56 54 41 42 58 4e 4f 43 41 53 45 1d   TAT VTABXNOCASE.
+|   3888: 07 05 00 31 0f 17 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3904: 54 41 54 20 56 54 41 42 58 52 54 52 49 4d 11 06   TAT VTABXRTRIM..
+|   3920: 05 00 17 0f 19 44 45 42 55 47 58 42 8a 4e 41 52   .....DEBUGXB.NAR
+|   3936: 59 11 05 05 00 17 0f 19 44 45 42 55 47 58 4e 4f   Y.......DEBUGXNO
+|   3952: 43 41 53 45 10 04 05 00 17 0f 17 44 45 42 55 47   CASE.......DEBUG
+|   3968: 58 52 54 52 49 4d 27 03 05 00 43 0f 19 43 4f 4d   XRTRIM'...C..COM
+|   3984: 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e 30 20   PILER=gcc-5.4.0 
+|   4000: 32 30 31 36 30 36 30 39 58 42 49 4e 41 52 59 27   20160609XBINARY'
+|   4016: 02 05 00 43 0f 19 43 4f 4d 50 49 4c 45 52 3f 87   ...C..COMPILER?.
+|   4032: 63 63 2d 35 2e 34 2e 30 20 32 30 31 36 30 36 30   cc-5.4.0 2016060
+|   4048: 39 58 4e 4f 43 41 53 45 26 01 05 00 43 0f 17 43   9XNOCASE&...C..C
+|   4064: 45 0d 60 59 4c 45 52 3d 67 63 63 2d 35 2e 34 2e   E.`YLER=gcc-5.4.
+|   4080: 30 20 32 30 31 36 30 36 30 39 68 52 54 52 49 4d   0 20160609hRTRIM
+| page 6 offset 20480
+|      0: 0d 00 00 00 24 0e 00 00 00 00 00 00 00 00 00 00   ....$...........
+|   3808: 06 24 03 00 12 02 01 01 06 23 03 00 12 02 01 01   .$.......#......
+|   3824: 06 22 03 01 12 02 01 01 06 21 03 00 12 03 01 01   .........!......
+|   3840: 06 20 03 00 12 03 01 01 06 1f 03 00 12 03 02 01   . ..............
+|   3856: 06 1e 03 00 12 03 01 01 06 1d 03 00 12 03 01 01   ................
+|   3872: 06 1c 03 00 12 03 01 01 06 1b 03 00 12 02 01 01   ................
+|   3888: 06 1a 03 00 12 02 01 01 06 19 03 00 12 02 01 01   ................
+|   3904: 06 18 03 00 12 02 01 01 06 17 03 00 12 02 01 01   ................
+|   3920: 06 16 03 00 12 02 01 01 06 15 03 00 12 02 01 01   ................
+|   3936: 06 14 03 00 12 02 01 01 06 13 03 00 12 02 01 01   ................
+|   3952: 06 12 03 00 12 02 01 01 06 11 03 00 12 02 01 01   ................
+|   3968: 06 00 03 00 12 02 01 01 06 0f 03 00 12 02 01 01   ................
+|   3984: 06 0e 03 00 12 02 01 01 06 0d 03 00 12 02 01 01   ................
+|   4000: 06 0c 03 00 12 02 01 01 06 0b 03 00 12 02 01 01   ................
+|   4016: 06 0a 03 00 12 02 01 01 06 09 03 00 12 03 01 01   ................
+|   4032: 06 08 03 00 12 03 01 01 06 07 03 00 12 03 01 01   ................
+|   4048: 06 06 03 00 12 01 01 01 06 05 03 00 12 01 01 01   ................
+|   4064: 06 04 03 00 12 01 01 01 06 03 03 00 12 06 01 01   ................
+|   4080: 06 02 03 00 12 06 01 01 06 01 03 00 12 06 01 01   ................
+| page 7 offset 24576
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 8 offset 28672
+|   4048: 00 00 00 00 00 00 5d 03 00 00 00 00 00 00 00 00   ......].........
+| end crash-c77b90b929dc92.db
+}]} {}
+
+
+do_catchsql_test 60.2 {
+  SELECT (matchinfo(t1,591)) FROM t1 WHERE t1 MATCH 'e*eŸ'
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+do_test 61.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 28672 pagesize 4096 filename crash-e5fa281edabddf.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 00   .....@  ........
+|     96: 00 00 00 00 0d 0f c7 00 06 0d b6 00 0f 8d 0f 36   ...............6
+|    112: 0e cb 0e 6b 0e 0e 0d b6 00 00 00 00 00 00 00 00   ...k............
+|   3504: 00 00 00 00 00 00 56 07 06 17 1f 1f 01 7d 74 61   ......V.......ta
+|   3520: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   blet1_configt1_c
+|   3536: 6f 6e 66 69 67 07 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
+|   3552: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
+|   3568: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
+|   3584: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 06    WITHOUT ROWID[.
+|   3600: 07 17 21 21 01 81 01 74 51 62 6c 65 74 31 5f 64   ..!!...tQblet1_d
+|   3616: 6f 63 73 69 7a 65 74 31 5f 63 6f 63 73 69 7a 65   ocsizet1_cocsize
+|   3632: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
+|   3648: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
+|   3664: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
+|   3680: 59 2c 20 73 7a 20 42 4c 4f 42 29 5e 05 07 17 21   Y, sz BLOB)^...!
+|   3696: 21 01 81 07 74 61 62 6c 65 74 31 5f 63 6f 6e 74   !...tablet1_cont
+|   3712: 65 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 05 43 52   entt1_content.CR
+|   3728: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63   EATE TABLE 't1_c
+|   3744: 6f 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47   ontent'(id INTEG
+|   3760: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
+|   3776: 63 30 2c 20 63 31 2c 20 63 32 29 69 04 07 17 19   c0, c1, c2)i....
+|   3792: 19 01 81 2d 74 61 62 6c 65 74 31 5f 69 64 78 74   ...-tablet1_idxt
+|   3808: 31 5f 69 64 78 04 43 52 45 41 54 45 20 54 41 42   1_idx.CREATE TAB
+|   3824: 4c 45 20 27 74 31 5f 69 64 78 27 28 73 65 67 69   LE 't1_idx'(segi
+|   3840: 64 2c 20 74 65 72 6d 2c 20 70 67 6e 6f 2c 20 50   d, term, pgno, P
+|   3856: 52 49 4d 41 52 59 20 4b 45 59 28 73 65 67 69 64   RIMARY KEY(segid
+|   3872: 2c 20 74 65 72 6d 29 29 20 57 49 54 48 4f 55 54   , term)) WITHOUT
+|   3888: 20 52 4f 57 49 44 55 03 07 17 1b 1b 01 81 01 74    ROWIDU........t
+|   3904: 61 62 6c 65 74 31 5f 64 61 74 61 74 31 5f 64 61   ablet1_datat1_da
+|   3920: 74 61 03 43 52 45 41 54 45 20 54 41 42 4c 45 20   ta.CREATE TABLE 
+|   3936: 27 74 31 5f 64 61 74 61 27 28 69 64 20 49 4e 54   't1_data'(id INT
+|   3952: 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59   EGER PRIMARY KEY
+|   3968: 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42 29 38 02 06   , block BLOB)8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 ea 74 31 43 52   ...._tablet.t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 35   LE t1 USING fts5
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 00 00 00 00 00 00   (a,b,c).........
+| page 3 offset 8192
+|      0: 0d 00 00 00 03 0c 94 00 0f e6 0f ef 0c 94 00 00   ................
+|   3216: 00 00 00 00 86 4a 84 80 80 80 80 01 04 00 8d 18   .....J..........
+|   3232: 00 00 03 2b 02 30 30 01 02 06 01 02 06 01 02 06   ...+.00.........
+|   3248: 1f 02 13 01 02 03 01 02 03 01 08 32 30 31 36 30   ...........20160
+|   3264: 36 30 39 01 02 07 01 02 07 01 02 07 01 01 34 01   609...........4.
+|   3280: 02 05 01 02 05 01 02 05 01 01 35 01 02 04 01 02   ..........5.....
+|   3296: 04 01 02 04 02 07 30 30 30 30 30 30 30 1c 02 04   ......0000000...
+|   3312: 01 02 04 01 02 04 01 06 62 69 6e 61 72 79 03 06   ........binary..
+|   3328: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3344: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3360: 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02   ................
+|   3376: 03 06 01 02 02 03 06 01 02 02 01 08 63 6f 6d 70   ............comp
+|   3392: 69 6c 65 72 01 02 02 01 02 02 01 02 02 01 06 64   iler...........d
+|   3408: 62 73 74 61 74 07 02 03 01 02 03 01 02 03 02 04   bstat...........
+|   3424: 65 62 75 67 04 02 02 01 02 02 01 02 02 01 06 65   ebug...........e
+|   3440: 6e 61 62 6c 65 07 02 02 01 02 02 01 02 02 01 02   nable...........
+|   3456: 02 01 02 02 01 02 02 01 02 02 01 02 02 01 02 02   ................
+|   3472: 01 02 02 01 02 02 01 02 02 01 02 02 01 02 02 01   ................
+|   3488: 02 02 01 02 02 01 02 02 01 02 02 01 02 02 01 02   ................
+|   3504: 02 01 02 02 02 08 78 74 65 6e 73 69 6f 6e 1f 02   ......xtension..
+|   3520: 04 01 02 04 01 02 04 01 04 66 74 73 34 0a 02 03   .........fts4...
+|   3536: 01 02 03 01 02 03 04 01 35 0d 02 03 01 02 03 01   ........5.......
+|   3552: 02 03 01 03 67 63 63 01 02 03 01 02 03 01 02 03   ....gcc.........
+|   3568: 02 06 65 6f 70 6f 6c 79 10 02 03 01 02 03 01 02   ..eopoly........
+|   3584: 03 01 05 6a 73 6f 6e 31 13 02 03 01 02 03 01 02   ...json1........
+|   3600: 03 01 04 6c 6f 61 64 1f 02 03 01 02 03 01 02 03   ...load.........
+|   3616: 01 03 6d 61 78 1c 02 02 01 02 02 01 02 02 02 05   ..max...........
+|   3632: 65 6d 6f 72 79 1c 02 03 01 02 03 01 02 03 04 04   emory...........
+|   3648: 73 79 73 35 16 02 03 01 02 03 11 02 03 01 06 6e   sys5...........n
+|   3664: 6f 63 61 73 65 02 06 01 02 02 03 06 01 02 02 03   ocase...........
+|   3680: 06 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06   ................
+|   3696: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3712: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3728: 02 01 04 6f 6d 69 74 1f 02 02 01 02 02 01 02 02   ...omit.........
+|   3744: 01 05 72 74 72 65 65 19 02 03 01 02 03 01 02 03   ..rtree.........
+|   3760: 04 02 69 6d 01 06 01 02 02 03 06 01 02 02 03 06   ..im............
+|   3776: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3792: 02 02 03 06 01 02 02 03 06 01 02 01 13 05 01 02   ................
+|   3808: 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02   ................
+|   3824: 01 0a 74 68 72 65 61 64 73 61 66 65 22 02 02 01   ..threadsafe....
+|   3840: 02 02 01 01 02 01 04 76 74 61 62 07 02 04 01 02   .......vtab.....
+|   3856: 04 01 02 04 01 01 78 01 06 01 01 02 01 06 01 01   ......x.........
+|   3872: 02 0e 16 01 01 02 01 06 01 01 02 01 06 01 02 02   ................
+|   3888: 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01   ................
+|   3904: 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06   ................
+|   3920: 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01   ................
+|   3936: 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01   ................
+|   3952: 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02   ................
+|   3968: 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01   ................
+|   3984: 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06   ................
+|   4000: 01 01 02 01 06 01 01 02 01 06 01 01 02 01 07 01   ................
+|   4016: 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01   ................
+|   4032: 02 01 06 01 01 02 01 06 01 01 02 04 15 13 0c 0c   ................
+|   4048: 12 44 13 11 0f 47 13 0f 0c 0e 11 10 0f 0e 10 0f   .D...G..........
+|   4064: 44 0f 10 40 15 0f 07 01 03 00 14 24 5a 24 24 0f   D..@.......$Z$$.
+|   4080: 0a 03 00 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 4 offset 12288
+|      0: 0a 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
+| page 5 offset 16384
+|      0: 0d 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   3072: 00 00 00 00 00 00 00 00 00 00 18 24 05 00 25 0f   ...........$..%.
+|   3088: 19 54 48 52 45 41 44 53 41 46 45 3d 30 58 42 49   .THREADSAFE=0XBI
+|   3104: 4e 41 52 59 18 e2 05 00 25 0f 19 54 48 52 45 41   NARY....%..THREA
+|   3120: 44 53 41 46 45 3d 30 58 4e 4f 43 41 53 45 17 22   DSAFE=0XNOCASE..
+|   3136: 05 00 25 0f 17 54 48 52 45 41 44 53 41 46 45 3d   ..%..THREADSAFE=
+|   3152: 30 58 52 54 52 49 4d 1f 21 05 00 33 0f 19 4f 4d   0XRTRIM.!..3..OM
+|   3168: 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49 4f   IT LOAD EXTENSIO
+|   3184: 4e 58 42 49 4e 40 52 59 1f 20 05 00 33 0f 19 4f   NXBIN@RY. ..3..O
+|   3200: 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49   MIT LOAD EXTENSI
+|   3216: 4f 4e 58 4e 4f 43 41 53 45 1e 1f 05 00 33 0f 17   ONXNOCASE....3..
+|   3232: 4f 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53   OMIT LOAD EXTENS
+|   3248: 49 4f 4e 58 52 54 52 49 4d 1f 1e 05 00 33 0f 19   IONXRTRIM....3..
+|   3264: 4d 41 58 20 4e 45 4d 4f 52 59 3d 35 30 30 30 30   MAX NEMORY=50000
+|   3280: 30 30 30 58 42 49 4e 41 52 59 1f 1d 05 00 33 0f   000XBINARY....3.
+|   3296: 19 4d 41 58 20 4d 45 4d 4f 52 59 3d 45 30 30 30   .MAX MEMORY=E000
+|   3312: 30 30 30 30 58 4e 4f 43 41 53 45 1e 1c 05 00 33   0000XNOCASE....3
+|   3328: 0f 17 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30   ..MAX MEMORY=500
+|   3344: 30 30 30 30 30 58 52 54 52 49 4d 18 1b 05 00 25   00000XRTRIM....%
+|   3360: 0f 19 45 4e 41 42 4c 45 20 52 54 52 45 45 58 42   ..ENABLE RTREEXB
+|   3376: 49 4e 41 52 59 18 1a 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3392: 4c 45 20 52 54 52 45 45 58 4e 4f 43 41 53 45 17   LE RTREEXNOCASE.
+|   3408: 19 05 00 25 0f 17 45 4e 41 42 4c 45 20 20 54 52   ...%..ENABLE  TR
+|   3424: 45 45 58 52 54 52 49 4d 1a 18 05 00 29 0f 19 45   EEXRTRIM....)..E
+|   3440: 4e 41 42 4c 45 20 4d 45 4d 53 59 53 35 58 42 49   NABLE MEMSYS5XBI
+|   3456: 4e 41 52 59 1a 17 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3472: 45 20 4d 45 4d 53 59 53 35 58 4e 4f 43 41 53 45   E MEMSYS5XNOCASE
+|   3488: 19 16 05 00 29 0f 17 45 4e 41 42 4c 45 20 4d 45   ....)..ENABLE ME
+|   3504: 4d 53 59 53 35 58 52 54 52 49 4d 18 15 05 00 25   MSYS5XRTRIM....%
+|   3520: 0f 19 45 4e 41 42 4c 45 20 4a 53 4f 4e 31 58 42   ..ENABLE JSON1XB
+|   3536: 49 4e 41 52 59 18 14 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3552: 4c 45 20 4a 53 4f 4e 31 58 4e 4f 43 41 53 45 17   LE JSON1XNOCASE.
+|   3568: 13 05 00 25 0f 17 45 4e 41 42 4c 45 20 4a 53 4f   ...%..ENABLE JSO
+|   3584: 4e 31 58 52 54 52 49 4d 1a 12 05 00 29 0f 19 45   N1XRTRIM....)..E
+|   3600: 4e 41 42 4c 45 20 47 45 4f 50 4f 4c 59 58 42 49   NABLE GEOPOLYXBI
+|   3616: 4e 41 52 59 1a 11 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3632: 45 20 47 45 4f 50 4f 4c 59 58 4e 4f 43 41 53 45   E GEOPOLYXNOCASE
+|   3648: 19 10 05 00 29 0f 17 45 4e 41 42 4c 45 20 47 45   ....)..ENABLE GE
+|   3664: 4f 50 4f 4c 59 58 52 54 52 49 4d 17 0f 05 00 23   OPOLYXRTRIM....#
+|   3680: 0f 19 45 4e 41 42 4c 45 20 e5 54 53 35 58 42 49   ..ENABLE .TS5XBI
+|   3696: 4e 41 52 59 17 0e 05 00 23 0f 19 45 4e 41 42 4d   NARY....#..ENABM
+|   3712: 45 b5 46 54 53 35 58 4e 4f 43 41 53 45 16 0d 05   E.FTS5XNOCASE...
+|   3728: 00 23 0f 17 45 4e 41 42 4c 45 20 46 54 53 35 58   .#..ENABLE FTS5X
+|   3744: 52 54 52 49 4d 17 0c 05 00 23 0f 19 45 4e 41 42   RTRIM....#..ENAB
+|   3760: 4c 45 20 46 54 53 34 58 42 b7 4e 41 52 59 17 0b   LE FTS4XB.NARY..
+|   3776: 05 00 23 0f 19 45 4e 41 42 4c 45 20 46 54 53 34   ..#..ENABLE FTS4
+|   3792: 58 4e 4f 43 41 53 45 16 0a 05 00 23 0f 17 45 4e   XNOCASE....#..EN
+|   3808: 41 42 4c 45 20 46 54 53 34 58 52 54 52 49 4d 1e   ABLE FTS4XRTRIM.
+|   3824: 09 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3840: 54 41 54 20 56 54 41 42 58 42 49 4e 41 52 59 1e   TAT VTABXBINARY.
+|   3856: 08 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3872: 54 41 54 20 56 54 41 42 58 4e 4f 43 41 53 45 1d   TAT VTABXNOCASE.
+|   3888: 07 05 00 31 0f 17 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3904: 54 41 54 20 56 54 41 42 58 52 54 52 49 4d 11 06   TAT VTABXRTRIM..
+|   3920: 05 00 17 0f 19 44 45 42 55 47 58 42 49 4e 41 52   .....DEBUGXBINAR
+|   3936: 59 11 05 05 00 17 0f 19 44 45 42 55 47 58 4e 4f   Y.......DEBUGXNO
+|   3952: 43 41 53 45 10 04 05 00 17 0f 17 44 45 42 55 47   CASE.......DEBUG
+|   3968: 58 52 54 52 49 4d 27 03 05 00 43 0f 19 43 4f 4d   XRTRIM'...C..COM
+|   3984: 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e 30 20   PILER=gcc-5.4.0 
+|   4000: 32 30 31 36 30 36 30 39 58 42 49 4e 41 52 59 27   20160609XBINARY'
+|   4016: 02 05 00 43 0f 19 43 4f 4d 50 49 4c 45 52 3d 67   ...C..COMPILER=g
+|   4032: 63 63 2d 35 2e 34 2e 30 20 32 30 31 36 30 36 30   cc-5.4.0 2016060
+|   4048: 39 58 4e 4f 43 41 53 45 26 01 05 00 43 0f 17 53   9XNOCASE&...C..S
+|   4064: 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e   OMPILER=gcc-5.4.
+|   4080: 30 20 32 2f 31 00 00 00 00 00 00 00 00 00 00 00   0 2/1...........
+| page 6 offset 20480
+|   3808: 06 24 03 00 12 02 01 01 06 23 03 00 12 02 01 01   .$.......#......
+|   3824: 06 22 03 00 12 02 01 01 06 21 03 00 12 03 01 01   .........!......
+|   3840: 06 20 03 00 12 03 01 01 06 1f 03 00 12 03 01 01   . ..............
+|   3856: 06 1e 03 00 12 03 01 01 06 1d 03 00 12 03 01 01   ................
+|   3872: 06 1c 03 00 12 03 01 01 06 1b 03 00 12 02 01 01   ................
+|   3888: 06 1a 03 00 12 02 01 01 06 19 03 10 12 02 01 01   ................
+|   3904: 06 18 03 00 12 02 01 01 06 17 03 00 12 02 01 01   ................
+|   3920: 06 16 03 00 12 02 01 01 06 15 03 00 12 02 01 01   ................
+|   3936: 06 14 03 00 12 02 01 01 06 13 03 00 12 02 01 01   ................
+|   3952: 06 12 03 00 12 02 01 01 06 11 03 00 12 02 01 01   ................
+|   3968: 06 10 03 00 12 02 01 01 06 0f 03 00 12 02 01 01   ................
+|   3984: 06 0e 03 00 12 02 01 01 06 0d 03 00 12 02 01 01   ................
+|   4000: 06 0c 03 00 12 02 01 01 06 0b 03 00 12 02 01 01   ................
+|   4016: 06 0a 03 00 12 02 01 01 06 09 03 00 12 03 01 01   ................
+|   4032: 06 08 03 00 12 03 01 01 06 07 03 00 12 03 01 01   ................
+|   4048: 06 06 03 00 12 01 01 01 06 05 03 01 12 01 01 01   ................
+|   4064: 06 04 03 00 12 01 01 01 06 03 03 00 12 06 01 01   ................
+|   4080: 06 02 03 00 12 06 01 01 06 01 03 00 12 06 01 01   ................
+| page 7 offset 24576
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| end crash-e5fa281edabddf.db
+}]} {}
+
+do_catchsql_test 61.1 {
+  CREATE VIRTUAL TABLE t3 USING fts5vocab('t1'(),'col' );
+} {/*malformed database schema*/}
+
+do_catchsql_test 61.2 {
+  SELECT * FROM t3 ORDER BY rowid;
+} {/*malformed database schema*/}
+
+#-------------------------------------------------------------------------
+do_test 62.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 28672 pagesize 4096 filename crash-44942694542e1e.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 00   .....@  ........
+|     96: 00 00 00 00 0d 0f c7 00 07 0d 92 00 0f 8d 0f 36   ...............6
+|    112: 0e cb 0e 6b 0e 0e 0d b6 0d 92 00 00 00 00 00 00   ...k............
+|   3472: 00 00 22 08 06 17 11 11 01 31 74 61 62 6c 65 74   .........1tablet
+|   3488: 32 74 32 08 43 52 45 41 54 45 20 54 41 42 4c 45   2t2.CREATE TABLE
+|   3504: 20 74 32 28 78 29 56 07 06 17 1f 1f 01 7d 74 61    t2(x)V.......ta
+|   3520: 62 6c 65 74 31 5f 63 6f 6e 66 79 67 74 31 5f 63   blet1_confygt1_c
+|   3536: 6f 6e 66 69 67 07 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
+|   3552: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
+|   3568: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
+|   3584: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 06    WITHOUT ROWID[.
+|   3600: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64   ..!!...tablet1_d
+|   3616: 6f 63 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65   ocsizet1_docsize
+|   3632: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
+|   3648: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
+|   3664: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
+|   3680: 59 2c 20 73 7a 20 52 4c 4f 42 29 5e 05 07 17 21   Y, sz RLOB)^...!
+|   3696: 21 01 81 07 74 61 62 6c 65 74 31 5f 63 6f 6e 74   !...tablet1_cont
+|   3712: 65 6e 74 74 35 ff 63 6f 6e 74 65 6e 74 05 43 52   entt5.content.CR
+|   3728: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63   EATE TABLE 't1_c
+|   3744: 6f 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47   ontent'(id INTEG
+|   3760: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
+|   3776: 63 30 2c 20 63 31 2c 20 63 42 29 69 04 07 17 19   c0, c1, cB)i....
+|   3792: 19 01 81 2d 74 61 62 6c 65 74 31 5f 69 64 78 74   ...-tablet1_idxt
+|   3808: 31 5f 79 64 78 04 43 52 45 41 54 45 20 54 41 42   1_ydx.CREATE TAB
+|   3824: 4c 45 20 27 74 31 5f 69 64 78 27 28 73 65 67 69   LE 't1_idx'(segi
+|   3840: 64 2c 20 74 65 72 6d 2c 20 70 67 6e 6f 2c 20 50   d, term, pgno, P
+|   3856: 52 49 4d 41 52 59 20 4b 45 59 28 73 65 67 69 64   RIMARY KEY(segid
+|   3872: 2c 20 74 65 72 6d 29 29 20 57 49 54 48 4f 55 54   , term)) WITHOUT
+|   3888: 20 52 4f 57 49 44 55 03 07 17 1b 1b 01 81 01 74    ROWIDU........t
+|   3904: 61 62 6c 65 74 31 5f 64 61 74 61 74 31 5f 74 61   ablet1_datat1_ta
+|   3920: 74 61 03 43 52 45 41 54 45 20 54 41 42 4c 45 20   ta.CREATE TABLE 
+|   3936: 27 74 31 5f 64 61 74 61 27 28 69 64 20 49 4e 54   't1_data'(id INT
+|   3952: 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59   EGER PRIMARY KEY
+|   3968: 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42 29 38 02 06   , block BLOB)8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 35   LE t1 USING fts5
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 00 00 00 00 00 00   (a,b,c).........
+| page 3 offset 8192
+|      0: 0d 00 00 00 03 0c 94 00 0f e6 0f ef 0c 94 00 00   ................
+|   3216: 00 00 00 00 86 4a 84 80 80 80 80 01 04 00 8d 18   .....J..........
+|   3232: 00 00 03 2b 02 30 30 01 02 06 01 02 06 01 02 06   ...+.00.........
+|   3248: 2f 02 03 01 02 03 01 02 03 01 08 32 30 31 36 30   /..........20160
+|   3264: 36 30 39 01 02 07 01 02 07 01 02 07 01 01 34 01   609...........4.
+|   3280: 02 05 01 02 c7 01 02 05 01 01 35 01 02 04 01 02   ..........5.....
+|   3296: 04 01 02 04 02 07 30 30 30 30 30 30 30 1c 02 04   ......0000000...
+|   3312: 01 02 04 01 02 04 01 06 62 69 6e 61 72 79 03 06   ........binary..
+|   3328: 01 02 02 04 16 01 02 02 03 06 01 02 02 02 06 01   ................
+|   3344: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3360: 02 03 06 01 02 02 03 06 01 02 02 02 06 01 02 02   ................
+|   3376: 03 06 01 02 02 03 06 01 02 02 01 08 63 6f 6d 70   ............comp
+|   3392: 69 6c 65 72 01 02 02 01 02 02 01 02 02 01 06 64   iler...........d
+|   3408: 62 73 74 61 74 07 02 03 00 02 03 01 02 03 02 04   bstat...........
+|   3424: 65 62 74 67 04 02 02 01 02 02 01 02 02 01 06 65   ebtg...........e
+|   3440: 6e 61 62 6c 65 07 02 02 01 02 02 01 02 02 01 02   nable...........
+|   3456: 02 01 02 02 01 02 02 01 02 02 01 02 01 f1 02 02   ................
+|   3472: 01 02 02 01 02 02 01 02 02 01 02 02 01 02 02 01   ................
+|   3488: 02 02 01 02 02 45 02 02 01 02 02 01 02 02 01 02   .....E..........
+|   3504: 02 01 02 02 02 08 78 74 65 6e 73 69 6f 6e 1f 02   ......xtension..
+|   3520: 04 01 02 09 c1 02 04 01 04 66 74 73 34 0a 02 03   .........fts4...
+|   3536: 01 02 03 01 02 03 04 00 35 0d 02 03 01 02 04 01   ........5.......
+|   3552: 02 03 01 0f d7 63 63 01 02 03 01 02 03 01 02 03   .....cc.........
+|   3568: 02 06 65 6f 70 6f 6b 79 10 02 03 01 02 03 01 02   ..eopoky........
+|   3584: 03 01 05 6a 73 6f 6e 31 13 02 03 14 02 03 01 02   ...json1........
+|   3600: 03 01 04 6c 6f 61 64 1f 02 03 01 02 03 01 02 03   ...load.........
+|   3616: 01 03 6d 61 78 1c 02 02 01 02 02 01 02 02 02 05   ..max...........
+|   3632: 65 6d 6f 72 79 1c 02 03 01 02 03 01 02 03 04 04   emory...........
+|   3648: 73 79 73 35 16 02 03 01 02 03 01 02 03 01 06 6e   sys5...........n
+|   3664: 6f 63 61 73 65 02 06 01 02 12 03 06 01 02 02 03   ocase...........
+|   3680: 06 01 02 02 03 06 01 02 02 09 f6 01 02 02 03 06   ................
+|   3696: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3712: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 11 02   ................
+|   3728: 02 01 04 6f 7d 69 74 1f 02 02 01 02 02 01 02 02   ...o.it.........
+|   3744: 01 05 72 74 72 65 65 19 02 03 01 02 03 01 02 03   ..rtree.........
+|   3760: 04 02 69 6d 01 06 01 02 02 03 06 01 02 02 03 06   ..im............
+|   3776: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3792: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 11 02   ................
+|   3808: 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02   ................
+|   3824: 00 fa 74 68 72 65 61 64 73 61 66 65 22 02 02 01   ..threadsafe....
+|   3840: 02 02 01 02 02 01 04 76 74 61 62 07 03 04 01 40   .......vtab....@
+|   3856: 04 01 02 04 11 01 78 01 06 01 01 02 01 06 01 01   ......x.........
+|   3872: 02 01 06 01 00 02 01 06 01 01 02 01 03 91 01 02   ................
+|   3888: 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01   ................
+|   3904: 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06   ................
+|   3920: 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01   ................
+|   3936: 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01   ................
+|   3952: 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02   ................
+|   3968: 01 06 01 01 02 01 76 01 01 02 01 06 01 01 02 5c   ......v.........
+|   3984: 06 01 01 02 01 06 01 01 02 01 06 01 01 02 11 06   ................
+|   4000: 01 02 02 01 06 08 11 02 01 06 01 01 02 01 06 01   ................
+|   4016: 01 02 01 06 01 01 02 01 06 01 01 02 01 05 01 01   ................
+|   4032: 02 01 06 01 01 02 01 06 01 01 02 04 15 13 0c 0c   ................
+|   4048: 12 44 13 11 0f 47 13 0f 0c 0e 11 10 ca 0e 10 0f   .D...G..........
+|   4064: 44 0f 10 40 15 0f 07 01 03 00 14 24 5a 14 24 0f   D..@.......$Z.$.
+|   4080: 0a 03 00 24 ff ff ff ff 01 01 02 00 01 01 01 01   ...$............
+| page 4 offset 12288
+|      0: 0a 00 00 00 01 0f fb 00 00 00 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
+| page 5 offset 16384
+|      0: 0d 00 00 00 24 0c 09 00 00 00 00 00 00 00 00 00   ....$...........
+|   3072: 00 00 00 00 00 00 00 00 00 00 18 24 05 00 25 0f   ...........$..%.
+|   3088: 19 54 48 52 45 41 44 53 41 46 45 3d 30 58 42 49   .THREADSAFE=0XBI
+|   3104: 4e 41 52 59 18 23 05 00 25 0f 19 54 48 52 45 41   NARY.#..%..THREA
+|   3120: 44 53 41 46 45 3d 30 58 4e 4f 43 41 53 47 17 22   DSAFE=0XNOCASG..
+|   3136: 05 00 25 0f 17 54 48 52 45 41 44 53 41 46 45 3d   ..%..THREADSAFE=
+|   3152: 30 58 52 54 52 49 4d 1f 21 05 00 33 0f 19 4f 4d   0XRTRIM.!..3..OM
+|   3168: 49 54 20 4c 3f 41 44 20 45 58 54 45 4e 53 49 4f   IT L?AD EXTENSIO
+|   3184: 4e 58 42 49 4e 41 52 59 1f 20 05 00 33 0f 19 4f   NXBINARY. ..3..O
+|   3200: 4d 49 64 20 4c 4f 41 44 20 45 58 54 45 d9 53 49   MId LOAD EXTE.SI
+|   3216: 4f 4e 58 4e 4f 43 41 53 45 1e 1f 05 00 33 0f 17   ONXNOCASE....3..
+|   3232: 4f 4d 39 54 20 4c 4f 41 44 20 45 58 55 45 4e 53   OM9T LOAD EXUENS
+|   3248: 49 4f 4e 58 52 54 52 49 4d 1f 1e 05 00 33 0f 19   IONXRTRIM....3..
+|   3264: 4c 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30 30   LAX MEMORY=50000
+|   3280: 30 30 30 58 42 49 4e 41 52 59 1f 1d 05 00 33 0f   000XBINARY....3.
+|   3296: 19 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30   .MAX MEMORY=5000
+|   3312: 30 30 30 30 58 af 4f 43 41 53 45 1e 1c 05 00 33   0000X.OCASE....3
+|   3328: 0f 17 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30   ..MAX MEMORY=500
+|   3344: 30 30 ab 30 30 58 62 54 52 49 4d 18 1b 05 00 25   00.00XbTRIM....%
+|   3360: 0f 19 45 4e 41 42 4c 45 20 52 54 52 45 45 58 42   ..ENABLE RTREEXB
+|   3376: 49 4e 41 52 59 18 1b 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3392: 4c 45 20 52 54 52 45 45 58 4e 4f 43 41 53 45 17   LE RTREEXNOCASE.
+|   3408: 19 05 00 25 0f 17 45 4e 41 42 4c 45 20 52 54 52   ...%..ENABLE RTR
+|   3424: 45 45 58 52 54 52 49 4d 1a 18 05 00 29 0f 19 45   EEXRTRIM....)..E
+|   3440: 4e 41 42 4c 45 20 4d 45 4d 53 59 63 35 58 42 49   NABLE MEMSYc5XBI
+|   3456: 4e 41 52 59 1a 17 04 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3472: 45 20 4d 45 4d 53 59 53 35 58 4e 4f 43 41 53 45   E MEMSYS5XNOCASE
+|   3488: 19 16 05 00 29 0f 17 45 4e 41 42 4c 45 20 3d 45   ....)..ENABLE =E
+|   3504: 4d 53 59 53 35 58 52 54 52 49 4d 18 15 05 00 25   MSYS5XRTRIM....%
+|   3520: 0f 19 45 4e 41 42 4c 45 20 4a 53 4f 4e 31 58 42   ..ENABLE JSON1XB
+|   3536: 49 4e 41 52 59 18 14 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3552: 4c 46 20 4a 53 4f 4e 31 58 4e 4f 43 41 53 45 17   LF JSON1XNOCASE.
+|   3568: 13 05 00 25 0f 17 45 4e 41 42 4c 45 20 4a 53 4f   ...%..ENABLE JSO
+|   3584: 4e 31 58 52 54 52 49 4d 1a 12 05 00 29 0f 19 45   N1XRTRIM....)..E
+|   3600: 4e 41 42 4c 45 20 46 45 46 50 4f 4c 59 57 42 49   NABLE FEFPOLYWBI
+|   3616: 4e 41 52 59 18 11 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3632: 45 20 47 45 4f 50 4f 4c 59 58 4e 5f 43 41 53 45   E GEOPOLYXN_CASE
+|   3648: 19 10 05 00 29 0f 17 45 4e 41 42 4c 45 20 47 42   ....)..ENABLE GB
+|   3664: 2f 50 4f 4c 59 58 51 54 52 49 4d 17 0f 05 00 23   /POLYXQTRIM....#
+|   3680: 0f 19 45 4e 41 42 4c 45 20 46 54 53 35 58 42 49   ..ENABLE FTS5XBI
+|   3696: 4e 41 52 59 17 0e 05 00 23 0f 19 45 4e 41 42 4c   NARY....#..ENABL
+|   3712: 45 20 46 54 53 35 58 4e 4f 43 41 53 45 16 0d 05   E FTS5XNOCASE...
+|   3728: 00 23 0f 17 45 4e 41 42 4c 45 20 46 54 53 35 58   .#..ENABLE FTS5X
+|   3744: 52 54 52 49 4d 17 1c 05 00 23 0f 19 45 4e 41 42   RTRIM....#..ENAB
+|   3760: 4c 45 20 46 54 53 34 58 42 49 4e 41 52 59 16 0b   LE FTS4XBINARY..
+|   3776: 05 00 22 0f e9 45 4e 41 42 4c 35 20 46 54 53 34   .....ENABL5 FTS4
+|   3792: 58 4e 4f 43 41 53 45 16 0a 05 00 23 00 47 45 4e   XNOCASE....#.GEN
+|   3808: 41 42 4c 45 20 46 54 53 34 57 52 54 52 49 4d 1e   ABLE FTS4WRTRIM.
+|   3824: 60 05 00 31 0f 19 45 4e 41 42 4c 55 20 43 42 53   `..1..ENABLU CBS
+|   3840: 54 41 54 20 56 54 42 42 58 42 49 4e 41 52 59 1e   TAT VTBBXBINARY.
+|   3856: 08 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3872: 54 40 54 20 56 54 41 42 58 4e 4f 43 41 53 45 1d   T@T VTABXNOCASE.
+|   3888: 07 05 00 31 0f 17 45 4e 41 42 4c 55 20 44 42 53   ...1..ENABLU DBS
+|   3904: 54 41 54 20 56 54 41 42 58 52 54 52 49 4d 12 06   TAT VTABXRTRIM..
+|   3920: 05 00 17 0f 19 44 45 42 55 47 58 42 49 4e 41 52   .....DEBUGXBINAR
+|   3936: 59 21 05 05 00 17 0f 19 44 45 42 55 47 58 4e 4f   Y!......DEBUGXNO
+|   3952: 43 41 53 45 10 04 05 00 17 0f 18 44 45 42 55 47   CASE.......DEBUG
+|   3968: 58 42 54 52 49 4d 27 11 05 00 43 0f 19 43 4f 4d   XBTRIM'...C..COM
+|   3984: 50 49 48 f5 52 3d 67 63 63 2d 35 2e 34 2e 30 20   PIH.R=gcc-5.4.0 
+|   4000: 32 30 31 36 30 36 30 39 58 42 49 4e 41 52 59 27   20160609XBINARY'
+|   4016: 02 05 00 43 0f 19 43 4f 4d 50 49 4c 45 52 3d 67   ...C..COMPILER=g
+|   4032: 63 63 2d 35 2e 34 2e 30 22 32 30 31 36 30 36 30   cc-5.4.0.2016060
+|   4048: 39 c2 3e 4f 43 41 53 45 26 01 05 00 43 0f 17 43   9.>OCASE&...C..C
+|   4064: 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e   OMPILER=gcc-5.4.
+|   4080: 30 30 32 30 31 26 30 36 30 39 58 52 54 52 49 4d   00201&0609XRTRIM
+| page 6 offset 20480
+|      0: 0d 00 00 00 24 0e e0 00 00 00 00 00 00 00 00 00   ....$...........
+|   3808: 06 24 03 00 12 02 01 01 06 23 03 00 12 02 01 01   .$.......#......
+|   3824: 06 22 03 00 12 02 01 01 06 21 03 00 12 03 01 01   .........!......
+|   3840: 06 20 03 00 12 03 01 01 06 1f 03 00 12 03 01 01   . ..............
+|   3856: 06 1e 03 00 12 03 01 01 06 1d 03 00 12 03 01 01   ................
+|   3872: 06 1c 03 00 12 03 01 01 06 1b 03 00 12 02 01 01   ................
+|   3888: 06 1a 03 00 12 02 01 01 06 19 03 00 12 02 01 01   ................
+|   3904: 06 18 03 00 12 02 01 00 f6 17 03 00 19 e2 f9 01   ................
+|   3920: 06 16 03 00 12 02 05 01 06 15 03 00 12 02 01 01   ................
+|   3936: 06 14 03 00 12 02 01 01 06 13 03 00 12 02 01 01   ................
+|   3952: 06 12 03 00 12 02 01 01 06 11 03 00 12 02 01 01   ................
+|   3968: 06 10 03 10 12 02 01 01 06 0f 03 00 12 02 01 01   ................
+|   3984: 06 0e 03 00 12 02 01 01 06 0d 03 00 12 02 00 f1   ................
+|   4000: 06 0c 03 00 12 02 01 01 06 0b 03 00 12 02 01 01   ................
+|   4016: 06 0a 03 00 12 02 01 01 05 09 03 00 12 03 01 01   ................
+|   4032: 06 08 03 00 12 03 01 01 06 07 03 00 12 03 01 01   ................
+|   4048: 06 06 03 00 12 01 01 01 06 05 02 ff 84 01 01 01   ................
+|   4064: 06 04 03 00 12 01 01 01 06 03 03 00 12 06 01 01   ................
+|   4080: 07 02 03 00 12 06 01 01 06 01 03 00 12 06 01 01   ................
+| page 7 offset 24576
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| end crash-44942694542e1e.db
+}]} {}
+
+do_catchsql_test 62.1 {
+  WITH c(x) AS (VALUES(false) UNION ALL SELECT x+1 FROM c WHERE x<72)
+    INSERT INTO t1(a) SELECT randomblob(2829) FROM c;
+} {/*malformed database schema*/}
+
+#---------------------------------------------------------------------------
+do_test 63.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 24576 pagesize 4096 filename crash-8230e6c3b368f5.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 00   .....@  ........
+|     96: 00 00 00 00 0d 00 00 00 06 0e 0f 00 0f aa 0f 53   ...............S
+|    112: 0e e8 0e 8b 0e 33 0e 0f 00 00 00 00 00 00 00 00   .....3..........
+|   3584: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 22   ................
+|   3600: 06 06 17 11 11 01 31 74 61 62 7c 65 62 63 62 62   ......1tab|ebcbb
+|   3616: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 62 62   .CREATE TABLE bb
+|   3632: 28 61 29 56 05 06 17 1f 1f 01 7d 74 61 62 6c 65   (a)V.......table
+|   3648: 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63 6f 6e 66   t1_configt1_conf
+|   3664: 69 67 05 43 52 45 41 54 45 20 54 41 42 4c 45 20   ig.CREATE TABLE 
+|   3680: 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b 20 50 52   't1_config'(k PR
+|   3696: 49 4d 41 52 59 20 4b 45 59 2c 20 76 29 20 57 49   IMARY KEY, v) WI
+|   3712: 54 48 4f 55 54 20 52 4f 57 49 44 5b 04 07 17 21   THOUT ROWID[...!
+|   3728: 21 01 81 01 74 61 62 6c 65 74 31 5f 64 6f 63 73   !...tablet1_docs
+|   3744: 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65 04 43 52   izet1_docsize.CR
+|   3760: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 9d   EATE TABLE 't1_.
+|   3776: 6f 63 73 69 7a 65 27 28 69 64 20 49 4e 54 45 47   ocsize'(id INTEG
+|   3792: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
+|   3808: 73 7a 20 42 4c 4f 42 29 69 03 07 17 19 19 01 81   sz BLOB)i.......
+|   3824: 2d 74 61 62 6c 65 74 31 5f 69 64 78 74 31 5f 69   -tablet1_idxt1_i
+|   3840: 64 78 03 43 52 45 41 54 45 20 54 41 42 4c 45 20   dx.CREATE TABLE 
+|   3856: 27 74 31 5f 69 64 78 27 28 73 65 67 69 64 2c 20   't1_idx'(segid, 
+|   3872: 74 65 72 6d 2c 20 70 67 6e 6f 2c 20 50 52 49 4d   term, pgno, PRIM
+|   3888: 41 52 59 20 4b 45 59 28 73 65 67 69 64 2c 20 74   ARY KEY(segid, t
+|   3904: 65 72 6d 29 29 20 57 49 54 48 4f 55 54 20 52 4f   erm)) WITHOUT RO
+|   3920: 57 49 44 55 02 07 17 1b 1b 01 81 01 74 61 62 6c   WIDU........tabl
+|   3936: 65 64 31 5f 64 61 74 61 74 31 5f 64 61 74 61 02   ed1_datat1_data.
+|   3952: 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74 31   CREATE TABLE 't1
+|   3968: 5f 64 61 74 61 27 28 69 64 20 49 4e 54 45 47 45   _data'(id INTEGE
+|   3984: 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 62   R PRIMARY KEY, b
+|   4000: 6c 6f 63 6b 20 42 4c 4f 42 29 54 01 07 17 10 11   lock BLOB)T.....
+|   4016: 08 81 15 74 61 62 6c 65 74 31 74 31 43 52 45 41   ...tablet1t1CREA
+|   4032: 54 45 20 56 49 52 54 55 41 4c 20 54 41 42 4c 45   TE VIRTUAL TABLE
+|   4048: 20 74 31 20 55 53 49 4e 47 20 66 74 73 35 28 61    t1 USING fts5(a
+|   4064: 2c 62 2c 70 72 65 66 69 78 3d 22 31 2c 32 2c 33   ,b,prefix=.1,2,3
+|   4080: 2c 34 22 2c 20 63 6f 6e 74 65 6e 74 3d 22 22 29   ,4., content=..)
+| page 2 offset 4096
+|      0: 0d 0b 6a 00 37 09 4c 02 0f e7 09 4c 0f c6 0f a4   ..j.7.L....L....
+|     16: 0f 88 0f 6d 0f 4b 0f 2c 0f 0e 0e ec 0e cd 0e ad   ...m.K.,........
+|     32: 0e 8e 0e 6c 0e 4b 0e 29 0e 08 0d e6 0d c4 0d b5   ...l.K.)........
+|     48: 0d 97 0d 76 0d 54 0d 31 0d 15 0c f3 0c d3 0c b5   ...v.T.1........
+|     64: 0c 95 0c 73 0c 54 0c 32 0c 10 0b ee 0b cc 0b b0   ...s.T.2........
+|     80: 0b 8d 0b 7e 0b 48 0b 2e 0b 0b 0a ef 0a cc 0a ad   ...~.H..........
+|     96: 0a 8c 0a 6d 0a 4d 0a 2b 0a 0c 09 ec 09 ca 09 a8   ...m.M.+........
+|    112: 09 86 09 63 0f f1 00 00 00 00 00 00 00 00 00 00   ...c............
+|   2368: 00 00 00 00 00 00 00 00 00 00 00 00 15 0a 03 00   ................
+|   2384: 30 00 00 00 01 01 03 35 00 03 01 01 12 02 01 12   0......5........
+|   2400: 03 01 11 1c 8c 80 80 80 80 10 03 00 3e 00 00 00   ............>...
+|   2416: 17 01 05 05 34 74 61 62 6c 03 02 03 01 04 77 68   ....4tabl.....wh
+|   2432: 65 72 03 02 06 09 1b 8c 80 80 80 80 0f 03 00 3c   er.............<
+|   2448: 00 00 00 16 05 34 66 74 73 34 03 02 02 01 04 6e   .....4fts4.....n
+|   2464: 75 6d 62 03 06 01 04 09 1b 8c 80 80 80 80 0e 03   umb.............
+|   2480: 00 3c 00 00 00 16 04 33 74 68 65 13 06 01 01 04   .<.....3the.....
+|   2496: 01 03 77 68 65 03 02 04 04 0a 1b 8c 80 80 80 80   ..whe...........
+|   2512: 0d 03 00 3c 00 00 00 16 04 33 6e 75 6d 03 06 01   ...<.....3num...
+|   2528: 01 05 01 03 75 61 62 03 02 03 04 0a 19 8c 80 80   ....uab.........
+|   2544: 80 80 0c 03 00 38 00 00 00 14 03 32 ec 68 03 02   .....8.....2.h..
+|   2560: 04 00 04 33 66 74 73 03 02 02 04 07 18 8c 80 80   ...3fts.........
+|   2576: 80 80 0b 03 00 36 00 00 00 13 03 32 74 61 03 02   .....6.....2ta..
+|   2592: 03 02 01 68 03 06 01 01 04 04 17 1b 8c 80 80 80   ...h............
+|   2608: 80 0a 03 00 3c 00 00 00 16 03 32 6e 75 03 06 01   ....<.....2nu...
+|   2624: 01 05 01 02 6f 66 03 06 01 01 06 04 09 19 8c 80   ....of..........
+|   2640: 80 80 80 09 03 00 38 00 00 00 14 03 32 66 74 03   ......8.....2ft.
+|   2656: 02 02 01 02 69 73 03 06 01 01 03 04 07 18 8c 80   ....is..........
+|   2672: 80 80 80 08 03 00 36 00 00 00 13 02 31 74 03 08   ......6.....1t..
+|   2688: 03 01 01 04 01 01 77 03 02 04 04 09 1a 8c 80 80   ......w.........
+|   2704: 80 80 07 03 00 3a 00 00 00 15 02 31 6e 03 08 01   .....:.....1n...
+|   2720: 01 02 05 01 01 6f 03 06 01 01 06 04 09 18 8c 80   .....o..........
+|   2736: 80 80 80 06 03 00 36 00 00 00 13 04 02 31 66 03   ......6......1f.
+|   2752: 02 02 01 01 69 03 06 01 01 03 05 06 1c 8c 80 80   ....i...........
+|   2768: 80 80 05 03 00 3e 00 00 00 17 04 30 74 68 65 03   .....>.....0the.
+|   2784: 06 01 01 04 01 05 77 68 65 72 65 03 02 04 0a 15   ......where.....
+|   2800: 8c 80 80 80 80 04 03 00 30 00 00 00 11 01 01 06   ........0.......
+|   2816: 06 30 74 61 62 6c 65 03 02 03 07 1c 8c 80 80 80   .0table.........
+|   2832: 80 03 03 00 3e 00 00 00 17 07 30 6e 75 6d 62 65   ....>.....0numbe
+|   2848: 72 03 06 01 01 05 01 02 6f 66 03 06 04 0d 13 8c   r.......of......
+|   2864: 80 80 80 80 02 03 00 2c 00 00 00 0f 01 01 03 02   .......,........
+|   2880: 30 6e 03 06 01 01 02 07 1b 8c 80 80 80 80 01 03   0n..............
+|   2896: 00 3c 00 00 00 16 08 30 66 74 73 34 61 75 78 03   .<.....0fts4aux.
+|   2912: 02 02 01 02 69 73 03 06 04 0c 00 00 00 14 2a 00   ....is........*.
+|   2928: 00 00 01 01 02 24 00 02 01 01 12 02 01 12 08 88   .....$..........
+|   2944: 80 80 80 80 12 03 00 16 00 00 00 05 02 1c 88 80   ................
+|   2960: 80 80 80 11 03 00 3e 00 00 00 17 05 34 72 6f 77   ......>.....4row
+|   2976: 73 02 06 01 01 05 01 04 74 68 65 72 02 02 04 0b   s.......ther....
+|   2992: 15 88 80 80 80 80 10 03 00 30 00 00 00 11 02 01   .........0......
+|   3008: 01 07 05 34 62 65 74 77 02 02 04 08 1b 88 80 80   ...4betw........
+|   3024: 80 80 0f 03 00 3c 00 00 00 16 04 04 33 72 6f 77   .....<......3row
+|   3040: 02 06 01 01 05 01 03 74 68 64 02 08 05 0a 1b 88   .......thd......
+|   3056: 80 80 80 80 0e 03 00 3c 00 00 00 16 01 01 02 04   .......<........
+|   3072: 33 61 72 65 02 02 03 01 03 62 65 74 02 02 07 08   3are.....bet....
+|   3088: 1b 88 80 80 80 80 0d 03 00 3c 00 00 00 16 03 32   .........<.....2
+|   3104: 74 68 02 08 02 01 01 07 00 04 33 61 6e 64 02 06   th........3and..
+|   3120: 04 0a 1b 88 80 80 80 80 0c 03 00 3c 00 00 00 16   ...........<....
+|   3136: 03 32 69 6e 02 06 01 01 06 01 02 72 6f 02 06 01   .2in.......ro...
+|   3152: 01 43 04 09 18 88 80 80 80 80 0b 03 00 36 00 00   .C...........6..
+|   3168: 00 13 02 03 32 61 72 02 02 03 01 02 62 65 02 02   ....2ar.....be..
+|   3184: 04 05 07 1b 88 80 80 80 80 0a 03 00 3c 00 00 00   ............<...
+|   3200: 16 02 31 74 02 08 02 01 01 07 00 03 32 61 6e 02   ..1t........2an.
+|   3216: 06 01 01 04 09 19 88 80 80 80 80 09 03 00 38 00   ..............8.
+|   3232: 00 00 14 02 31 6e 02 06 01 01 03 01 01 72 02 06   ....1n.......r..
+|   3248: 01 01 05 04 08 17 88 80 80 80 80 08 03 00 34 00   ..............4.
+|   3264: 00 00 12 02 31 62 02 02 04 01 01 69 02 06 01 01   ....1b.....i....
+|   3280: 06 04 06 19 88 80 80 80 80 07 03 00 38 00 00 00   ............8...
+|   3296: 14 04 02 31 32 02 02 05 01 01 61 02 08 03 01 01   ...12.....a.....
+|   3312: 02 05 06 1b 88 80 80 80 80 06 03 00 3c 00 00 00   ............<...
+|   3328: 16 06 30 74 68 65 72 65 02 02 01 00 02 30 21 02   ..0there.....0!.
+|   3344: 06 01 01 04 0a 15 88 80 80 80 80 05 03 00 30 00   ..............0.
+|   3360: 00 00 11 01 01 05 04 30 74 68 65 02 06 01 01 07   .......0the.....
+|   3376: 07 1c 88 80 80 80 80 04 03 00 3e 00 00 00 17 01   ..........>.....
+|   3392: 01 06 02 30 6e 02 06 01 01 03 01 04 72 6f 77 73   ...0n.......rows
+|   3408: 02 06 07 08 1b 88 80 80 80 80 03 03 00 3c 00 51   .............<.Q
+|   3424: 00 16 08 30 62 65 74 77 65 65 6e 02 02 04 01 02   ...0between.....
+|   3440: 69 6e 02 06 04 0c 1a 88 80 80 80 80 02 03 00 3a   in.............:
+|   3456: 00 00 00 15 04 30 61 6e 64 02 06 01 01 02 02 02   .....0and.......
+|   3472: 72 65 02 02 03 04 0a 17 88 80 80 80 80 01 03 00   re..............
+|   3488: 34 00 00 00 12 02 30 31 02 06 01 01 04 01 01 32   4.....01.......2
+|   3504: 02 02 05 04 08 08 84 80 80 80 80 12 03 00 16 00   ................
+|   3520: 00 00 05 04 1b 84 80 80 80 80 11 03 00 3c 00 00   .............<..
+|   3536: 00 16 05 34 74 51 62 6c 01 06 01 01 05 02 03 65   ...4tQbl.......e
+|   3552: 72 6d 01 02 04 0b 1b 84 80 80 80 80 10 03 00 3c   rm.............<
+|   3568: 00 00 00 16 05 34 65 17 63 68 01 02 03 01 04 70   .....4e.ch.....p
+|   3584: 72 65 73 01 02 05 04 09 1a 84 80 80 80 80 0f 03   res.............
+|   3600: 00 3a 00 00 00 15 04 33 74 65 72 01 02 04 02 02   .:.....3ter.....
+|   3616: 68 65 01 06 01 01 03 04 08 1b 84 80 80 80 80 0e   he..............
+|   3632: 03 00 3c 00 00 00 16 04 33 70 72 65 01 02 05 01   ..<.....3pre....
+|   3648: 03 74 61 62 01 06 01 01 05 04 08 1a 84 80 80 80   .tab............
+|   3664: 80 0d 03 00 3a 00 00 00 15 04 33 66 6f 72 01 03   ....:.....3for..
+|   3680: 02 02 02 74 73 01 06 01 01 04 04 08 1b 84 80 80   ...ts...........
+|   3696: 80 80 0c 03 00 3c 00 00 00 16 03 32 74 68 01 06   .....<.....2th..
+|   3712: 01 01 03 00 04 33 65 61 63 01 02 03 04 09 18 84   .....3eac.......
+|   3728: 80 80 80 80 0b 03 00 36 00 00 00 13 03 32 74 61   .......6.....2ta
+|   3744: 01 06 01 01 05 02 01 65 01 02 04 04 09 19 84 80   .......e........
+|   3760: 80 80 80 0a 03 00 38 00 00 00 14 03 32 69 6e 01   ......8.....2in.
+|   3776: 06 01 01 02 01 02 70 72 01 02 05 04 09 18 84 80   ......pr........
+|   3792: 80 80 80 09 03 00 36 00 00 00 13 03 32 66 6f 01   ......6.....2fo.
+|   3808: 02 02 02 01 74 01 06 01 01 04 04 07 1b 84 80 80   ....t...........
+|   3824: 80 80 08 03 00 3c 00 00 00 16 02 31 74 01 0a 04   .....<.....1t...
+|   3840: 01 01 03 04 00 03 32 65 61 01 02 03 04 0a 17 84   ......2ea.......
+|   3856: 80 80 80 80 07 03 00 34 00 00 00 12 02 31 69 01   .......4.....1i.
+|   3872: 06 01 01 02 01 01 70 01 02 05 04 08 18 84 80 80   ......p.........
+|   3888: 80 80 06 03 00 36 00 00 00 12 02 31 65 01 02 02   .....6.....1e...
+|   3904: 01 01 66 01 08 02 01 01 04 04 06 1b 84 80 80 80   ..f.............
+|   3920: 80 05 03 00 3c 00 00 00 16 05 30 74 65 72 6d 01   ....<.....0term.
+|   3936: 02 04 02 02 68 65 01 06 01 01 03 04 09 14 84 80   ....he..........
+|   3952: 80 80 80 04 03 00 2e 00 00 00 10 06 30 74 61 62   ............0tab
+|   3968: 6c 65 01 06 01 01 05 04 15 84 80 80 80 80 03 03   le..............
+|   3984: 00 30 00 00 00 11 02 08 30 70 72 65 73 65 6e 74   .0......0present
+|   4000: 01 02 05 05 1b 84 80 80 80 80 02 03 00 3c 00 00   .............<..
+|   4016: 00 16 04 30 66 74 73 01 06 01 01 04 01 02 69 6e   ...0fts.......in
+|   4032: 01 06 01 01 04 0a 1a 84 80 80 80 80 01 03 00 3a   ...............:
+|   4048: 00 00 00 15 05 30 65 61 63 68 01 02 03 01 03 66   .....0each.....f
+|   4064: 6f 72 01 02 01 f4 09 06 01 03 00 12 03 0b 0f 00   or..............
+|   4080: 00 08 8c 80 80 80 80 11 03 00 16 00 00 00 05 04   ................
+| page 3 offset 8192
+|      0: 0a 00 00 00 32 0e 4f 00 0f fa 0f f1 0f e9 0f e1   ....2.O.........
+|     16: 0f d8 0f d1 0f c9 0f c1 0f b9 0f b1 0f a9 0f a0   ................
+|     32: 0f 98 0f 90 0f 87 0f 80 0f 78 0f 71 0f 68 0f 5f   .........x.q.h._
+|     48: 0f 56 0f 4d 0f 41 0f 38 0f 2f 0f 26 0f 1d 0f 13   .V.M.A.8./.&....
+|     64: 0f 0a 0f 01 0e f7 0e ee 0e e6 0e dd 0e d6 0e cd   ................
+|     80: 0e c3 0e ba 0e b0 0e a8 0e 9f 0e 00 00 00 00 00   ................
+|   3648: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08   ................
+|   3664: 04 01 10 01 03 34 74 20 07 04 01 0e 01 03 34 1e   .....4t ......4.
+|   3680: 09 04 01 12 01 03 33 74 68 1c 08 04 01 10 01 03   ......3th.......
+|   3696: 33 6e 1a 08 04 01 10 01 03 32 77 18 08 04 01 10   3n.......2w.....
+|   3712: 01 03 32 74 16 08 04 01 10 01 03 32 6e 14 07 04   ..2t.......2n...
+|   3728: 01 0e 01 03 32 12 08 04 01 10 01 03 31 74 10 07   ....2.......1t..
+|   3744: f4 01 10 01 03 31 6e 0e 07 04 01 0e 01 03 31 0c   .....1n.......1.
+|   3760: 09 04 01 12 01 03 30 74 68 0a 08 04 01 10 01 03   ......0th.......
+|   3776: 30 74 08 09 04 01 12 01 03 30 6e 75 06 08 04 01   0t.......0nu....
+|   3792: 10 01 03 30 6e 04 06 04 01 0c 01 03 02 08 04 01   ...0n...........
+|   3808: 10 01 02 34 73 22 07 04 01 0e 01 02 34 20 08 04   ...4s.......4 ..
+|   3824: 01 10 01 02 33 72 1e 09 04 01 12 01 02 33 61 72   ....3r.......3ar
+|   3840: 1c 08 04 01 10 01 02 32 74 1a 08 04 01 10 01 02   .......2t.......
+|   3856: 32 69 18 09 04 01 12 01 02 32 61 72 16 08 04 01   2i.......2ar....
+|   3872: 10 01 02 31 74 14 08 04 01 10 01 02 31 6e 12 08   ...1t.......1n..
+|   3888: 04 01 10 01 02 31 62 10 08 04 01 10 01 02 31 32   .....1b.......12
+|   3904: 0e 0b 04 01 16 01 02 30 74 00 00 00 00 00 00 00   .......0t.......
+| page 4 offset 12288
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 05 02 03 00 10   ................
+|   4080: 03 05 05 02 03 00 10 04 06 05 01 03 00 10 04 04   ................
+| page 5 offset 16384
+|      0: 0a 00 00 00 02 0f eb 00 0f eb 0f f4 00 00 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 08 03 15 01 70   ...............p
+|   4080: 67 73 7a 08 0b 03 1b 01 76 65 72 73 69 6f 6e 04   gsz.....version.
+| end crash-8230e6c3b368f5.db
+}]} {}
+
+do_catchsql_test 63.1 {
+  SELECT * FROM t1 WHERE b MATCH 'thead*thead*theSt*';
+} {/*malformed database schema*/}
+
+do_catchsql_test 63.2 {
+  INSERT INTO t1(t1) VALUES('optimize');
+} {/*malformed database schema*/}
+
+do_catchsql_test 63.3 {
+  SELECT * FROM t1 WHERE b MATCH 'thead*thead*theSt*';
+} {/*malformed database schema*/}
+
+#---------------------------------------------------------------------------
+do_test 64.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 28672 pagesize 4096 filename crash-4470f0b94422f7.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 06   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 06 00 00 00 04   ................
+|     96: 00 00 00 00 0d 00 00 00 06 0d e2 00 0f c4 0f 6a   ...............j
+|    112: 0e fc 0e 9d 0e 3d 0d e2 00 00 00 00 00 01 00 00   .....=..........
+|   3552: 00 00 59 06 06 17 21 21 01 7f 74 61 62 6c 65 74   ..Y...!!..tablet
+|   3568: 74 74 5f 63 6f 6e 66 69 67 74 74 74 5f 63 6f 6e   tt_configttt_con
+|   3584: 66 69 67 06 43 52 45 41 54 45 20 54 41 42 4c 45   fig.CREATE TABLE
+|   3600: 20 27 74 74 74 5f 63 6f 6e 66 69 67 27 28 6b 20    'ttt_config'(k 
+|   3616: 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29 20   PRIMARY KEY, v) 
+|   3632: 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5e 05 07   WITHOUT ROWID^..
+|   3648: 17 23 23 01 81 03 74 61 62 6c 65 74 74 74 5f 64   .##...tablettt_d
+|   3664: 6f 63 73 69 7a 65 74 74 74 5f 64 6f 63 73 69 7a   ocsizettt_docsiz
+|   3680: 65 05 43 52 45 41 54 45 20 54 41 42 4c 45 20 27   e.CREATE TABLE '
+|   3696: 74 74 74 5f 64 6f 63 73 69 7a 65 27 28 69 64 20   ttt_docsize'(id 
+|   3712: 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59 20   INTEGER PRIMARY 
+|   3728: 4b 45 59 2c 20 73 7a 20 42 4c 4f 42 29 5d 04 07   KEY, sz BLOB)]..
+|   3744: 17 23 23 01 81 01 74 61 62 6c 65 74 74 74 5f 63   .##...tablettt_c
+|   3760: 6f 6e 74 65 6e 74 74 74 74 5f 63 6f 6e 74 65 6e   ontentttt_conten
+|   3776: 74 04 43 52 45 41 54 45 20 54 41 42 4c 45 20 27   t.CREATE TABLE '
+|   3792: 74 74 74 5f 63 6f 6e 74 65 6e 74 27 28 69 64 20   ttt_content'(id 
+|   3808: 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59 20   INTEGER PRIMARY 
+|   3824: 4b 45 59 2c 20 63 30 2c 20 63 31 29 6c 03 07 17   KEY, c0, c1)l...
+|   3840: 1b 1b 01 81 2f 74 61 62 6c 65 74 74 74 5f 69 64   ..../tablettt_id
+|   3856: 78 74 74 74 5f 69 64 78 03 43 52 45 41 54 45 20   xttt_idx.CREATE 
+|   3872: 54 41 42 4c 45 20 27 74 74 74 5f 69 64 78 27 28   TABLE 'ttt_idx'(
+|   3888: 73 65 67 69 64 2c 20 74 65 72 6d 2c 20 70 67 6e   segid, term, pgn
+|   3904: 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45 59 28 73   o, PRIMARY KEY(s
+|   3920: 65 67 69 64 2c 20 74 65 72 6d 29 29 20 57 49 54   egid, term)) WIT
+|   3936: 48 4f 55 54 20 52 4f 57 49 44 58 02 07 17 1d 1d   HOUT ROWIDX.....
+|   3952: 01 81 03 74 61 62 6c 65 74 74 74 5f 64 61 74 61   ...tablettt_data
+|   3968: 74 74 74 5f 64 61 74 61 02 43 52 45 41 54 45 20   ttt_data.CREATE 
+|   3984: 54 41 42 4c 45 20 27 74 74 74 5f 64 61 74 61 27   TABLE 'ttt_data'
+|   4000: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   (id INTEGER PRIM
+|   4016: 41 52 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42   ARY KEY, block B
+|   4032: 4c 4f 42 29 3a 01 06 17 13 13 08 5f 74 61 62 6c   LOB):......_tabl
+|   4048: 65 74 74 74 74 74 74 43 52 45 41 54 45 20 56 49   ettttttCREATE VI
+|   4064: 52 54 55 41 4c 20 54 41 42 4c 45 20 74 74 74 20   RTUAL TABLE ttt 
+|   4080: 55 53 49 4e 47 20 66 74 73 35 28 61 2c 20 62 29   USING fts5(a, b)
+| page 2 offset 4096
+|      0: 0d 0f 44 00 05 0e 81 00 0f 1a 0e 81 0f af 0f 58   ..D............X
+|     16: 0e 98 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   3712: 00 15 0a 03 00 30 00 00 00 00 01 03 03 00 03 01   .....0..........
+|   3728: 01 01 02 01 01 03 01 01 81 24 8c 80 80 80 80 01   .........$......
+|   3744: 04 00 82 4c 00 00 00 9b 02 30 65 03 1a 02 05 05   ...L.....0e.....
+|   3760: 07 05 01 01 04 03 03 08 03 03 01 2e 02 05 05 07   ................
+|   3776: 05 07 05 07 05 01 01 04 03 03 08 03 03 08 03 03   ................
+|   3792: 07 f3 03 02 01 65 03 1e 03 05 05 04 05 05 01 00   .....e..........
+|   3808: 03 06 04 04 06 04 03 01 36 03 05 05 04 06 05 04   ........6.......
+|   3824: 06 05 04 05 05 01 01 03 06 04 04 06 04 04 06 04   ................
+|   3840: 04 06 04 03 03 01 65 03 14 04 05 06 f5 05 01 01   ......e.........
+|   3856: 02 08 09 01 20 04 05 07 05 07 05 07 05 05 01 00   .... ...........
+|   3872: 02 08 0a 0a 0a 04 01 65 03 02 0a 01 06 0a 0a 0a   .......e........
+|   3888: 05 01 65 03 06 01 01 0a 01 0a 01 01 0a 0a 0a 04   ..e.............
+|   3904: 2b 31 21 0b 0f ef 00 14 2a 00 00 00 00 01 02 02   +1!.....*.......
+|   3920: 00 02 01 01 01 02 01 01 50 88 80 80 80 80 01 04   ........P.......
+|   3936: 00 81 24 00 00 00 47 02 30 65 02 1a 02 05 05 07   ..$...G.0e......
+|   3952: 05 01 01 04 03 03 08 03 03 02 01 65 02 1e 03 05   ...........e....
+|   3968: 05 04 05 05 01 01 03 06 04 04 06 04 03 03 01 65   ...............e
+|   3984: 02 14 04 05 07 05 05 01 01 02 08 0a 04 01 65 02   ..............e.
+|   4000: 02 0a 05 01 65 02 06 01 01 0a 04 12 14 0f 06 31   ....e..........1
+|   4016: 84 80 80 80 80 01 03 00 68 00 00 00 2b 02 30 65   ........h...+.0e
+|   4032: 01 10 02 05 05 01 01 04 03 03 02 01 65 01 12 03   ............e...
+|   4048: 05 05 01 01 03 06 04 03 03 01 65 01 0e 04 05 05   ..........e.....
+|   4064: 01 01 02 08 04 0d 0e 06 01 03 00 12 04 4c 4c 00   .............LL.
+|   4080: 00 00 11 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 3 offset 8192
+|      0: 0a 00 00 00 03 0f ec 00 0f 00 00 00 00 00 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 00 06 04 01 0c   ................
+|   4080: 01 03 02 06 04 01 0c 01 02 02 05 04 09 0c 01 02   ................
+| page 4 offset 12288
+|      0: 0d 00 00 00 04 0e 1a 00 0f c7 0f 5b 0e ef 0e 1a   ...........[....
+|   3600: 00 00 00 00 00 00 00 00 00 00 81 52 04 06 00 81   ...........R....
+|   3616: 5d 81 55 65 20 65 65 20 65 65 65 20 65 20 65 65   ].Ue ee eee e ee
+|   3632: 20 65 65 65 20 65 20 65 65 20 65 65 65 66 20 65    eee e ee eeef e
+|   3648: 65 20 65 65 65 20 65 20 65 65 20 65 65 65 20 65   e eee e ee eee e
+|   3664: 20 65 65 20 65 65 65 65 20 65 65 20 65 65 65 20    ee eeee ee eee 
+|   3680: 65 20 65 65 20 65 65 65 20 65 20 65 65 20 65 65   e ee eee e ee ee
+|   3696: 65 65 20 65 65 20 65 65 65 20 65 20 65 65 20 65   ee ee eee e ee e
+|   3712: 65 65 20 65 20 65 65 20 65 65 65 65 65 65 20 65   ee e ee eeeeee e
+|   3728: 65 20 65 20 65 20 65 20 65 65 20 65 65 65 20 65   e e e e ee eee e
+|   3744: 65 20 65 65 65 65 65 20 65 65 20 65 20 65 1f 65   e eeeee ee e e.e
+|   3760: 20 65 65 20 65 65 65 20 65 65 20 65 65 65 65 65    ee eee ee eeeee
+|   3776: 20 65 65 20 65 20 65 20 65 20 65 65 20 65 65 65    ee e e e ee eee
+|   3792: 20 65 65 20 65 65 65 65 65 20 65 65 20 65 20 65    ee eeeee ee e e
+|   3808: 20 65 20 65 65 20 65 65 65 20 65 65 20 65 65 6a    e ee eee ee eej
+|   3824: 03 03 ff 75 71 65 20 65 65 1f 65 65 65 20 65 20   ...uqe ee.eee e 
+|   3840: 65 65 20 65 65 65 20 65 20 65 65 20 65 65 65 65   ee eee e ee eeee
+|   3856: 20 65 65 20 65 65 65 20 65 20 65 65 20 65 65 65    ee eee e ee eee
+|   3872: 20 65 20 65 65 20 65 65 65 65 65 65 20 65 65 20    e ee eeeeee ee 
+|   3888: 65 20 65 20 65 20 65 65 20 65 65 65 20 65 65 20   e e e ee eee ee 
+|   3904: 65 65 65 65 65 20 65 65 20 65 20 65 20 65 20 65   eeeee ee e e e e
+|   3920: 65 20 65 65 65 20 65 65 20 65 65 6a 02 04 00 75   e eee ee eej...u
+|   3936: 40 65 20 65 65 20 65 65 65 20 65 20 65 65 20 65   @e ee eee e ee e
+|   3952: 65 65 20 65 20 65 65 20 65 65 65 65 20 65 65 20   ee e ee eeee ee 
+|   3968: 65 65 65 20 65 20 65 65 20 65 65 65 20 65 20 65   eee e ee eee e e
+|   3984: 65 20 65 65 65 65 65 65 20 65 65 20 65 20 65 20   e eeeeee ee e e 
+|   4000: 65 20 65 65 20 65 65 65 20 65 65 20 65 65 65 65   e ee eee ee eeee
+|   4016: 65 20 65 65 20 65 20 65 20 65 20 65 65 20 65 65   e ee e e e ee ee
+|   4032: 65 20 65 65 20 65 65 37 01 04 00 41 3f 65 20 65   e ee ee7...A?e e
+|   4048: 65 20 65 65 65 20 65 20 65 65 20 65 65 65 20 65   e eee e ee eee e
+|   4064: 20 65 65 20 65 65 65 65 65 65 20 65 65 20 65 20    ee eeeeee ee e 
+|   4080: 65 20 65 20 65 65 20 65 65 65 20 65 65 20 65 65   e e ee eee ee ee
+| page 5 offset 16384
+|      0: 0d 00 00 00 04 0f e4 00 0f f9 0f f2 0f eb 0f e4   ................
+|   4064: 00 00 00 00 05 04 03 00 10 21 21 05 03 03 00 10   .........!!.....
+|   4080: 11 11 05 02 03 00 10 11 11 05 01 03 00 10 09 09   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| end crash-4470f0b94422f7.db
+}]} {}
+
+do_catchsql_test 64.1 {
+  SELECT * FROM ttt('e*');
+} {1 {database disk image is malformed}}
+
+#---------------------------------------------------------------------------
+do_test 65.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 28672 pagesize 4096 filename crash-3aef66940ace0c.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 00   .....@  ........
+|     96: 00 00 00 00 0d 0f c7 00 07 0d 92 00 0f 8d 0f 36   ...............6
+|    112: 0e cb 0e 6b 0e 0e 0d b6 0d 92 00 00 00 00 00 00   ...k............
+|   3472: 00 00 22 08 06 17 11 11 01 31 74 61 62 6c 65 74   .........1tablet
+|   3488: 32 74 32 08 43 52 45 41 54 45 20 54 41 42 4c 45   2t2.CREATE TABLE
+|   3504: 20 74 32 28 78 29 56 07 06 17 1f 1f 01 7d 74 61    t2(x)V.......ta
+|   3520: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   blet1_configt1_c
+|   3536: 6f 6e 66 69 67 07 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
+|   3552: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
+|   3568: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
+|   3584: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 06    WITHOUT ROWID[.
+|   3600: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64   ..!!...tablet1_d
+|   3616: 6f 63 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65   ocsizet1_docsize
+|   3632: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
+|   3648: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
+|   3664: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
+|   3680: 59 2c 20 73 7a 20 42 4c 4f 42 29 5e 05 07 17 21   Y, sz BLOB)^...!
+|   3696: 21 01 81 07 74 61 62 6c 65 74 31 5f 63 6f 6e 74   !...tablet1_cont
+|   3712: 65 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 05 43 52   entt1_content.CR
+|   3728: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63   EATE TABLE 't1_c
+|   3744: 6f 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47   ontent'(id INTEG
+|   3760: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
+|   3776: 63 30 2c 20 63 31 2c d6 63 32 29 69 04 07 17 19   c0, c1,.c2)i....
+|   3792: 19 01 81 2d 74 61 62 6c 65 74 31 5f 69 64 78 74   ...-tablet1_idxt
+|   3808: 31 5f 69 64 78 04 43 52 45 41 54 45 20 54 41 42   1_idx.CREATE TAB
+|   3824: 4c 45 20 27 74 31 5f 69 64 78 27 28 73 65 67 69   LE 't1_idx'(segi
+|   3840: 64 2c 20 74 65 72 6d 2c 20 70 67 6e 6f 2c 20 50   d, term, pgno, P
+|   3856: 52 49 4d 41 52 59 20 4b 45 59 28 73 65 67 69 64   RIMARY KEY(segid
+|   3872: 2c 20 74 65 72 6d 29 29 20 57 49 54 48 4f 55 54   , term)) WITHOUT
+|   3888: 20 52 4f 57 49 44 55 03 07 17 1b 1b 01 81 01 74    ROWIDU........t
+|   3904: 61 62 6c 65 74 31 5f 64 61 74 61 74 31 5f 64 61   ablet1_datat1_da
+|   3920: 74 61 03 43 52 45 41 54 45 20 54 41 42 4c 45 20   ta.CREATE TABLE 
+|   3936: 27 74 31 5f 64 61 74 61 27 28 69 64 20 49 4e 54   't1_data'(id INT
+|   3952: 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59   EGER PRIMARY KEY
+|   3968: 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42 29 38 02 06   , block BLOB)8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 35   LE t1 USING fts5
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 00 00 00 00 00 00   (a,b,c).........
+| page 3 offset 8192
+|      0: 0d 00 00 00 03 0c 93 ff 0f e6 0f ef 0c 94 00 00   ................
+|   3216: 00 00 00 00 86 4a 84 80 80 80 80 01 04 00 8d 18   .....J..........
+|   3232: 00 00 03 2b 02 30 30 01 02 06 01 02 06 01 02 06   ...+.00.........
+|   3248: 1f 02 03 01 02 03 01 02 03 01 08 32 31 31 36 30   ...........21160
+|   3264: 36 30 39 01 02 07 01 02 07 01 02 07 01 01 33 f1   609...........3.
+|   3280: 02 05 01 02 05 01 02 05 01 01 35 01 02 03 01 02   ..........5.....
+|   3296: 04 01 02 04 02 07 30 30 30 30 30 30 30 1c 02 3d   ......0000000..=
+|   3312: 01 02 04 01 02 04 01 06 62 69 6e 61 72 79 03 06   ........binary..
+|   3328: 01 02 02 03 06 01 01 f2 03 06 4e 02 02 03 06 01   ..........N.....
+|   3344: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3360: 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02   ................
+|   3376: 03 06 01 02 02 03 06 01 02 02 01 08 63 6f 6d 70   ............comp
+|   3392: 69 6c 65 72 01 02 02 01 02 02 01 02 02 01 06 64   iler...........d
+|   3408: 62 73 74 61 74 07 02 03 01 02 13 01 02 03 02 04   bstat...........
+|   3424: 65 62 75 67 04 02 02 01 02 02 01 02 02 01 07 65   ebug...........e
+|   3440: 6e 61 62 6c 65 07 02 02 01 02 02 01 02 02 01 02   nable...........
+|   3456: 02 01 02 02 01 02 02 01 02 02 01 02 02 01 02 02   ................
+|   3472: 01 02 02 01 02 01 f1 02 02 01 02 02 01 02 02 01   ................
+|   3488: 02 02 01 02 02 01 02 02 01 02 02 01 02 02 01 02   ................
+|   3504: 02 01 02 02 02 08 76 b4 65 6e 73 69 6f 6e 1f 02   ......v.ension..
+|   3520: 04 01 02 04 01 02 04 01 04 66 74 73 34 0a 02 03   .........fts4...
+|   3536: 01 02 03 01 02 03 04 01 25 0d 02 03 01 02 03 01   ........%.......
+|   3552: 02 03 01 03 67 63 63 01 02 03 01 02 03 01 02 03   ....gcc.........
+|   3568: 02 06 65 6f 70 6f 6c 79 0f f2 03 01 02 03 01 02   ..eopoly........
+|   3584: 03 01 05 6a 73 6f 6e 31 13 02 03 01 02 03 01 02   ...json1........
+|   3600: 03 01 04 6c 6f 61 64 1f 02 03 01 02 03 01 02 03   ...load.........
+|   3616: 00 03 6d 61 78 1c 02 0c 01 02 02 01 02 02 02 05   ..max...........
+|   3632: 65 6d 6f 72 79 1c 02 03 01 02 03 01 02 03 04 04   emory...........
+|   3648: 73 79 73 35 16 02 03 01 02 03 01 02 03 01 06 6e   sys5...........n
+|   3664: 6f 63 61 73 65 02 06 01 02 02 13 06 00 f2 02 03   ocase...........
+|   3680: 06 01 12 02 13 06 01 02 02 03 06 01 02 02 03 06   ................
+|   3696: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3712: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3728: 02 01 04 6f 6d 69 74 1f 02 02 01 02 02 01 02 02   ...omit.........
+|   3744: 01 05 72 74 72 65 65 19 02 03 01 02 03 01 02 03   ..rtree.........
+|   3760: 04 02 69 6d 01 06 01 02 02 03 06 01 02 02 03 06   ..im............
+|   3776: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3792: 02 02 03 06 01 02 02 03 06 01 02 02 8e 06 01 02   ................
+|   3808: 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02   ................
+|   3824: 01 0a 74 68 72 65 61 64 73 61 66 65 22 02 02 01   ..threadsafe....
+|   3840: 02 02 01 02 02 01 04 76 74 61 62 07 02 04 01 02   .......vtab.....
+|   3856: 04 01 02 04 01 01 78 01 06 01 01 02 01 06 01 01   ......x.........
+|   3872: 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02   ................
+|   3888: 01 06 01 11 02 01 06 01 01 02 01 06 01 01 02 01   ................
+|   3904: 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06   ................
+|   3920: 01 01 02 01 06 01 01 01 01 06 01 01 02 01 06 01   ................
+|   3936: 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01   ................
+|   3952: 02 01 06 01 01 01 f1 06 01 01 02 ad 06 01 01 02   ................
+|   3968: 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01   ................
+|   3984: 06 01 01 01 01 06 01 01 02 01 06 01 01 02 01 06   ................
+|   4000: 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01   ................
+|   4016: 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01   ................
+|   4032: 02 01 06 01 01 02 01 06 01 01 02 04 15 13 0c 0c   ................
+|   4048: 12 44 13 11 0f 47 13 0e fc 0e 11 10 0f 0e 10 0f   .D...G..........
+|   4064: 44 0f 10 40 15 0f 07 01 03 00 14 24 5a 24 24 0f   D..@.......$Z$$.
+|   4080: 0a 03 00 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 4 offset 12288
+|      0: 0a 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
+| page 5 offset 16384
+|      0: 0d 00 00 00 24 0c 0a 00 00 00 00 00 00 00 00 00   ....$...........
+|   3072: 00 00 00 00 00 00 00 00 00 00 18 24 05 00 25 0f   ...........$..%.
+|   3088: 19 54 48 52 45 41 44 53 41 46 45 3d 30 58 42 49   .THREADSAFE=0XBI
+|   3104: 4e 41 52 59 18 23 05 00 25 0f 19 54 48 52 45 41   NARY.#..%..THREA
+|   3120: 44 53 41 46 45 3d 30 58 4e 4f 43 41 53 45 17 8f   DSAFE=0XNOCASE..
+|   3136: 05 00 25 0f 17 54 48 52 45 41 44 43 41 46 45 3d   ..%..THREADCAFE=
+|   3152: 30 58 52 54 52 49 4d 1f 21 05 00 33 0f 19 4f 4d   0XRTRIM.!..3..OM
+|   3168: 49 54 20 4b 4f 41 44 21 45 58 54 45 4e 53 49 4f   IT KOAD!EXTENSIO
+|   3184: 4e 58 42 49 4e 41 52 59 1f 20 05 00 33 0f 19 4f   NXBINARY. ..3..O
+|   3200: 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49   MIT LOAD EXTENSI
+|   3216: 4f 4e 58 4e 4f 43 41 53 45 1e 1f 05 00 33 0f 17   ONXNOCASE....3..
+|   3232: 4f 4d 59 54 20 4c 4f 41 44 20 45 58 54 45 4e 53   OMYT LOAD EXTENS
+|   3248: 49 4f 4e 58 52 54 56 a9 4d 1f 1e 05 00 33 0f 19   IONXRTV.M....3..
+|   3264: 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30 30   MAX MEMORY=50000
+|   3280: 30 30 30 57 42 49 4e 31 52 59 1f 1d 05 00 33 0f   000WBIN1RY....3.
+|   3296: 19 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30   .MAX MEMORY=5000
+|   3312: 30 30 30 30 58 4e 4f 43 41 53 45 1e 1c 05 00 32   0000XNOCASE....2
+|   3328: 0f 17 4e 41 58 20 4d 45 4d 4f 52 59 2d 35 30 30   ..NAX MEMORY-500
+|   3344: 30 30 30 30 30 58 52 54 52 49 4d 18 1b 05 00 25   00000XRTRIM....%
+|   3360: 0f 19 45 4e 41 42 4c 45 20 52 54 52 45 45 58 42   ..ENABLE RTREEXB
+|   3376: 49 4e 41 52 59 18 1a 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3392: 4c 45 20 52 54 52 45 45 59 4e 4f 43 41 53 45 17   LE RTREEYNOCASE.
+|   3408: 19 66 00 25 0f 17 45 4e 41 42 4c 45 20 52 54 52   .f.%..ENABLE RTR
+|   3424: 45 45 58 52 54 52 49 4d 1a 18 05 00 29 0f 19 45   EEXRTRIM....)..E
+|   3440: 4e 41 42 4c 45 20 4d 45 4d 53 59 53 35 58 42 49   NABLE MEMSYS5XBI
+|   3456: 4e 41 52 59 1a 17 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3472: 45 20 4d 45 4d 53 59 53 35 58 4e 4f 43 41 53 45   E MEMSYS5XNOCASE
+|   3488: 19 16 05 00 29 0f 17 45 4e 41 42 4c 45 20 4d 45   ....)..ENABLE ME
+|   3504: 4d 53 59 53 35 58 52 54 52 49 4d 18 15 05 10 25   MSYS5XRTRIM....%
+|   3520: 0f 19 45 4e 40 42 4c 45 20 4a 53 4f 4e 31 58 42   ..EN@BLE JSON1XB
+|   3536: 49 4e 41 52 59 18 14 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3552: 4c 45 20 4a 53 4f 4e 32 58 4e 4f 43 41 53 45 17   LE JSON2XNOCASE.
+|   3568: 13 05 00 25 0f 17 45 4d 41 42 4c 45 20 4a 53 4f   ...%..EMABLE JSO
+|   3584: 4e 31 58 52 54 52 49 4d 1a 12 05 00 29 0f 19 45   N1XRTRIM....)..E
+|   3600: 4e 41 42 4c 45 20 47 45 4f 50 4f 4c 59 58 42 49   NABLE GEOPOLYXBI
+|   3616: 4e 41 52 59 1a 11 05 00 29 0f 19 45 4f 81 42 4c   NARY....)..EO.BL
+|   3632: 45 20 47 45 4f 50 4f 4c 59 58 4e 4f 43 51 53 45   E GEOPOLYXNOCQSE
+|   3648: 19 10 05 00 29 0f 17 45 4e 41 42 4c 45 20 47 45   ....)..ENABLE GE
+|   3664: 4f 50 4f 4c 59 58 52 54 52 49 4d 17 0f 05 00 23   OPOLYXRTRIM....#
+|   3680: 0f 1a 45 4e 41 42 4c 45 20 46 54 53 35 58 42 49   ..ENABLE FTS5XBI
+|   3696: 4e 41 52 59 17 0e 05 00 23 0f 19 45 4e 41 42 4c   NARY....#..ENABL
+|   3712: 45 20 46 54 53 35 48 4e 4f 43 41 53 45 16 1d 05   E FTS5HNOCASE...
+|   3728: 00 23 0f a4 45 4e 41 42 4c 45 20 46 54 53 35 58   .#..ENABLE FTS5X
+|   3744: 52 54 52 49 4d 17 0c 05 00 23 0f 19 45 4e 41 42   RTRIM....#..ENAB
+|   3760: 4c 45 20 46 55 53 34 58 42 49 4e 41 52 59 17 0b   LE FUS4XBINARY..
+|   3776: 05 00 23 0f 19 45 4e 41 42 4c 45 20 46 54 53 34   ..#..ENABLE FTS4
+|   3792: 57 4e 4f 43 41 53 45 16 0a 05 00 23 0f 17 45 4e   WNOCASE....#..EN
+|   3808: 41 42 4c 45 20 46 54 53 34 05 52 54 52 49 4d 1e   ABLE FTS4.RTRIM.
+|   3824: 09 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3840: 54 41 54 20 56 54 41 42 58 42 49 4e 41 52 59 1e   TAT VTABXBINARY.
+|   3856: 08 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3872: 54 41 54 20 56 54 41 42 58 4e 4f 43 41 53 45 1d   TAT VTABXNOCASE.
+|   3888: 07 05 00 31 0f 17 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3904: 54 41 54 20 56 54 41 42 58 52 54 52 49 4d 11 06   TAT VTABXRTRIM..
+|   3920: 05 00 17 0f 19 44 45 42 55 47 58 42 8a 4e 41 52   .....DEBUGXB.NAR
+|   3936: 59 11 05 05 00 17 0f 19 44 45 42 55 47 58 4e 4f   Y.......DEBUGXNO
+|   3952: 43 41 53 45 10 04 05 00 17 0f 17 44 45 42 55 47   CASE.......DEBUG
+|   3968: 58 52 54 52 49 4d 27 03 05 00 43 0f 19 43 4f 4d   XRTRIM'...C..COM
+|   3984: 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e 30 20   PILER=gcc-5.4.0 
+|   4000: 32 30 31 36 30 36 30 39 58 42 49 4e 41 52 59 27   20160609XBINARY'
+|   4016: 02 05 00 43 0f 19 43 4f 4d 50 49 4c 45 52 3f 87   ...C..COMPILER?.
+|   4032: 63 63 2d 35 2e 34 2e 30 20 32 30 31 36 30 36 30   cc-5.4.0 2016060
+|   4048: 39 58 4e 4f 43 41 53 45 26 01 05 00 43 0f 17 43   9XNOCASE&...C..C
+|   4064: 45 0d 60 59 4c 45 52 3d 67 63 63 2d 35 2e 34 2d   E.`YLER=gcc-5.4-
+|   4080: 30 20 32 30 31 36 30 36 30 39 00 00 00 00 00 00   0 20160609......
+| page 6 offset 20480
+|   3808: 06 24 03 00 12 02 01 01 06 23 03 00 12 02 01 01   .$.......#......
+|   3824: 06 22 03 01 12 02 01 01 06 21 03 00 12 03 01 01   .........!......
+|   3840: 06 20 03 00 12 03 01 01 06 1f 03 00 12 03 02 01   . ..............
+|   3856: 06 1e 03 00 12 03 01 01 06 1d 03 00 12 03 01 01   ................
+|   3872: 06 1c 03 00 12 03 01 01 06 1b 03 00 12 02 01 01   ................
+|   3888: 06 1a 03 00 12 02 01 01 06 19 03 00 12 02 01 01   ................
+|   3904: 06 18 03 00 12 02 01 01 06 17 03 00 12 02 01 01   ................
+|   3920: 06 16 03 00 12 02 01 01 06 15 03 00 12 02 01 01   ................
+|   3936: 06 14 03 00 12 02 01 01 06 13 03 00 12 02 01 01   ................
+|   3952: 06 12 03 00 12 02 01 01 06 11 03 00 12 02 01 01   ................
+|   3968: 06 00 03 00 12 02 01 01 06 0f 03 00 12 02 01 01   ................
+|   3984: 06 0e 03 00 12 02 01 01 06 0d 03 00 12 02 01 01   ................
+|   4000: 06 0c 03 00 12 02 01 01 06 0b 03 00 12 02 01 01   ................
+|   4016: 06 0a 03 00 12 02 01 01 06 09 03 00 12 03 01 01   ................
+|   4032: 06 08 03 00 12 03 01 01 06 07 03 00 12 03 01 01   ................
+|   4048: 06 06 03 00 12 01 01 01 06 05 03 00 12 01 01 01   ................
+|   4064: 06 04 03 00 12 01 01 01 06 03 03 00 12 06 01 01   ................
+|   4080: 06 02 03 00 12 06 01 01 06 01 03 00 12 06 01 01   ................
+| page 7 offset 24576
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| end crash-3aef66940ace0c.db
+}]} {}
+
+do_catchsql_test 65.1 {
+  SELECT ( MATCH (t1,591)) FROM t1 WHERE t1 MATCH 'e*eŸ'
+} {1 {malformed database schema (t2) - invalid rootpage}}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_test 66.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 28672 pagesize 4096 filename crash-37cecb4e784e9f.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 07   .....@  ........
+|     96: 00 00 00 00 0d 00 00 00 07 0d d2 00 0f c4 0f 6d   ...............m
+|    112: 0f 02 0e ab 0e 4e 0d f6 0d d2 00 00 00 00 00 00   .....N..........
+|   3536: 00 00 22 07 06 17 11 11 01 31 74 61 62 6c 65 74   .........1tablet
+|   3552: 32 74 32 07 43 52 45 41 54 45 20 54 41 42 4c 45   2t2.CREATE TABLE
+|   3568: 20 74 32 28 78 29 56 06 06 17 1f 1f 01 7d 74 61    t2(x)V.......ta
+|   3584: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   blet1_configt1_c
+|   3600: 6f 6e 66 69 67 06 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
+|   3616: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
+|   3632: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
+|   3648: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 05    WITHOUT ROWID[.
+|   3664: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64   ..!!...tablet1_d
+|   3680: 6f 63 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65   ocsizet1_docsize
+|   3696: 05 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
+|   3712: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
+|   3728: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
+|   3744: 59 2c 20 73 7a 20 42 4c 4f 42 29 55 04 06 17 21   Y, sz BLOB)U...!
+|   3760: 21 01 77 74 61 62 6c 65 74 31 5f 63 6f 6e 74 65   !.wtablet1_conte
+|   3776: 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 04 43 52 45   ntt1_content.CRE
+|   3792: 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63 6f   ATE TABLE 't1_co
+|   3808: 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47 45   ntent'(id INTEGE
+|   3824: 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 63   R PRIMARY KEY, c
+|   3840: 30 29 69 03 07 17 19 19 01 81 2d 74 61 62 6c 65   0)i.......-table
+|   3856: 74 31 5f 69 64 78 74 31 5f 69 64 78 03 43 52 45   t1_idxt1_idx.CRE
+|   3872: 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 69 64   ATE TABLE 't1_id
+|   3888: 78 27 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20   x'(segid, term, 
+|   3904: 70 67 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45   pgno, PRIMARY KE
+|   3920: 59 28 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20   Y(segid, term)) 
+|   3936: 57 49 54 48 4f 55 54 20 52 4f 57 49 44 55 02 07   WITHOUT ROWIDU..
+|   3952: 17 1b 1b 01 81 01 74 61 62 6c 65 74 31 5f 64 61   ......tablet1_da
+|   3968: 74 61 74 31 5f 64 61 74 61 02 43 52 45 41 54 45   tat1_data.CREATE
+|   3984: 20 54 41 42 4c 45 20 27 74 31 5f 64 61 74 61 27    TABLE 't1_data'
+|   4000: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   (id INTEGER PRIM
+|   4016: 41 52 49 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42   ARI KEY, block B
+|   4032: 4c 4f 42 29 3a 01 06 17 11 11 08 63 74 61 62 6c   LOB):......ctabl
+|   4048: 65 74 31 74 31 43 52 45 41 54 45 20 56 49 52 54   et1t1CREATE VIRT
+|   4064: 55 41 4c 20 54 41 42 4c 45 20 74 31 20 55 53 49   UAL TABLE t1 USI
+|   4080: 4e 47 20 66 74 73 35 28 63 6f 6e 74 65 6e 74 29   NG fts5(content)
+| page 2 offset 4096
+|      0: 0d 00 00 00 03 0f bd 00 0f e8 0f ef 0f bd 00 01   ................
+|   4016: 00 00 00 00 00 00 00 00 00 00 00 00 00 24 84 80   .............$..
+|   4032: 80 80 80 01 03 00 4e 00 00 00 1e 06 30 61 62 61   ......N.....0aba
+|   4048: 63 6b 01 02 02 04 02 66 74 02 02 02 04 04 6e 64   ck.....ft.....nd
+|   4064: 6f 6e 03 02 02 04 0a 07 05 01 03 00 10 03 03 0f   on..............
+|   4080: 0a 03 00 24 00 00 00 00 01 01 01 00 01 00 01 01   ...$............
+| page 3 offset 8192
+|      0: 0a 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
+| page 4 offset 12288
+|      0: 0d 00 00 00 03 0f e0 00 0f f6 0f ec 0f e0 00 00   ................
+|   4064: 0a 03 03 00 1b 61 62 61 6e 64 6f 6e 08 02 03 00   .....abandon....
+|   4080: 17 61 62 61 66 74 08 01 03 00 17 61 62 61 63 6b   .abaft.....aback
+| page 5 offset 16384
+|      0: 0d 00 00 00 03 0f ee 00 0f fa 0f f4 0f ee 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 04 03   ................
+|   4080: 03 00 0e 01 04 02 03 00 0e 01 04 01 03 00 0e 01   ................
+| page 6 offset 20480
+|      0: 0a 00 00 01 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 7 offset 24576
+|      0: 0d 00 00 00 03 0f d6 00 0f f4 0f e1 0f d6 00 00   ................
+|   4048: 00 00 00 00 00 00 09 01 52 1b 72 65 62 75 69 6c   ........R.rebuil
+|   4064: 64 11 02 02 2b 69 6e 74 65 67 72 69 74 79 2d 63   d...+integrity-c
+|   4080: 68 65 63 6b 0a 01 02 1d 6f 70 74 69 6d 69 7a 65   heck....optimize
+| end crash-37cecb4e784e9f.db
+}]} {}
+
+do_catchsql_test 66.1 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_test 67.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 24576 pagesize 4096 filename crash-43ed0ad79c0194.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 00   .....@  ........
+|     96: 00 00 00 00 0d 00 00 00 06 0d e2 00 0f c4 0f 6a   ...............j
+|    112: 0e fc 0e 9d 0e 3d 0d e2 01 00 00 00 00 00 00 00   .....=..........
+|   3552: 00 00 59 06 06 17 21 21 01 7f 74 61 62 6c 65 74   ..Y...!!..tablet
+|   3568: 74 74 5f 63 6f 6e 66 69 67 74 74 74 5f 63 6f 6e   tt_configttt_con
+|   3584: 66 69 67 06 43 52 45 41 54 45 20 54 41 42 4c 45   fig.CREATE TABLE
+|   3600: 20 27 74 74 74 5f 63 6f 6e 66 69 67 27 28 6b 20    'ttt_config'(k 
+|   3616: 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29 20   PRIMARY KEY, v) 
+|   3632: 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5e 05 07   WITHOUT ROWID^..
+|   3648: 17 23 23 01 81 03 74 61 62 6c 65 74 74 74 5f 64   .##...tablettt_d
+|   3664: 6f 63 73 69 7a 65 74 74 74 5f 64 6f 63 73 69 7a   ocsizettt_docsiz
+|   3680: 65 05 43 52 45 41 54 45 20 54 41 42 4c 45 20 27   e.CREATE TABLE '
+|   3696: 74 74 74 5f 64 6f 63 73 69 7a 65 27 28 69 64 20   ttt_docsize'(id 
+|   3712: 49 4e 54 45 47 45 52 20 51 52 49 4d 41 52 59 20   INTEGER QRIMARY 
+|   3728: 4b 45 59 2c 20 73 7a 20 42 4c 4f 42 29 5d 04 07   KEY, sz BLOB)]..
+|   3744: 17 23 23 01 81 01 74 61 62 6c 65 74 74 74 5f 63   .##...tablettt_c
+|   3760: 6f 6e 74 65 6e 74 74 74 74 5f 63 6f 6e 74 65 6e   ontentttt_conten
+|   3776: 74 04 43 52 45 41 54 45 20 54 41 42 4c 45 20 27   t.CREATE TABLE '
+|   3792: 74 74 74 5f 63 6f 6e 74 65 6e 74 27 28 69 64 20   ttt_content'(id 
+|   3808: 49 4e 54 45 47 45 52 20 50 52 49 4d 41 f1 59 20   INTEGER PRIMA.Y 
+|   3824: 4b 45 59 2c 20 63 30 2c 20 63 31 29 6c 03 07 17   KEY, c0, c1)l...
+|   3840: 1b 1b 01 81 2f 74 61 62 6c 65 74 74 74 5f 69 64   ..../tablettt_id
+|   3856: 78 74 74 74 5f 69 64 78 03 43 52 45 41 54 45 20   xttt_idx.CREATE 
+|   3872: 54 41 42 4c 45 20 27 74 74 74 5f 69 64 78 27 28   TABLE 'ttt_idx'(
+|   3888: 73 65 67 69 64 2c 20 74 65 72 6d 2c 20 70 67 6e   segid, term, pgn
+|   3904: 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45 59 28 73   o, PRIMARY KEY(s
+|   3920: 65 67 69 64 2c 20 74 65 72 6d 29 29 20 57 49 54   egid, term)) WIT
+|   3936: 48 4f 55 54 20 52 4f 57 49 44 58 02 07 17 1d 1d   HOUT ROWIDX.....
+|   3952: 01 81 03 74 61 62 6c 65 74 74 74 5f 64 61 74 61   ...tablettt_data
+|   3968: 74 74 74 5f 64 61 74 61 02 43 52 45 41 54 45 20   ttt_data.CREATE 
+|   3984: 54 41 42 4c 45 20 27 74 74 74 5f 64 61 74 61 27   TABLE 'ttt_data'
+|   4000: 28 69 64 20 49 4e 54 45 47 55 52 20 50 52 49 4d   (id INTEGUR PRIM
+|   4016: 41 52 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42   ARY KEY, block B
+|   4032: 4c 50 42 29 3a 02 06 17 13 13 08 5f 74 61 62 6c   LPB):......_tabl
+|   4048: 65 74 74 74 74 74 74 43 52 45 41 54 45 20 56 49   ettttttCREATE VI
+|   4064: 52 54 55 41 4c 20 54 41 42 4c 45 20 74 74 74 20   RTUAL TABLE ttt 
+|   4080: 55 53 49 4e 47 20 66 74 73 35 28 61 2c 20 62 29   USING fts5(a, b)
+| page 2 offset 4096
+|      0: 0d 0f 44 00 05 0e 71 00 0f e7 0e 81 0f af 0f 58   ..D...q........X
+|     16: 0e 98 01 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   3712: 00 15 0a 03 00 30 00 00 00 00 01 03 03 00 03 01   .....0..........
+|   3728: 01 01 02 01 01 03 01 01 81 24 8c 80 80 80 80 01   .........$......
+|   3744: 04 00 82 4c 00 00 00 9b 02 30 65 03 1a 12 05 05   ...L.....0e.....
+|   3760: 07 05 01 01 04 03 03 08 04 03 01 2e 02 05 f7 07   ................
+|   3776: 01 e6 f5 07 05 01 01 04 03 03 01 22 03 18 03 03   ................
+|   3792: 08 03 03 02 01 65 03 1e 03 05 05 04 05 05 01 01   .....e..........
+|   3808: 03 06 03 f4 06 04 03 00 36 03 ff 05 04 05 05 04   ........6.......
+|   3824: 05 05 04 05 04 f1 01 03 06 04 04 06 04 04 06 04   ................
+|   3840: 04 07 04 03 03 01 65 03 14 04 05 07 05 05 01 01   ......e.........
+|   3856: 02 08 a5 01 20 04 05 01 94 f7 05 07 05 05 01 01   .... ...........
+|   3872: 02 08 0a 0a 0a 04 01 65 03 02 0a 00 06 0a 0a 0a   .......e........
+|   3888: 05 01 65 03 06 a7 01 0a 01 0a 01 01 0a 0a 0a 04   ..e.............
+|   3904: 2b 31 21 0b 0f ef 00 14 2a 00 00 00 00 01 02 02   +1!.....*.......
+|   3920: 00 02 01 01 01 02 11 01 50 88 80 80 80 80 01 04   ........P.......
+|   3936: 00 81 24 00 00 00 47 02 30 65 02 1a 02 05 05 07   ..$...G.0e......
+|   3952: 05 e6 01 07 aa e3 08 03 03 02 01 65 02 1e 03 05   ...........e....
+|   3968: 05 05 04 f5 01 01 03 06 04 04 06 04 13 03 01 65   ...............e
+|   3984: 02 14 04 05 07 05 05 01 f7 f2 08 0a 04 01 65 02   ..............e.
+|   4000: 02 0a 05 01 65 02 06 00 f1 0a 04 12 14 0f 06 31   ....e..........1
+|   4016: 84 80 80 80 80 01 03 00 68 00 00 00 2b 02 30 65   ........h...+.0e
+|   4032: 01 10 02 05 05 00 01 04 03 03 02 01 65 01 12 03   ............e...
+|   4048: 05 05 01 01 03 06 04 03 03 01 65 01 0e 04 05 04   ..........e.....
+|   4064: 01 01 02 08 04 0d 0e 06 01 03 00 12 04 4c 4c 00   .............LL.
+|   4080: 00 00 11 24 00 00 00 00 01 01 01 00 01 01 01 02   ...$............
+| page 3 offset 8192
+|      0: 0a 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+| page 4 offset 12288
+|   3600: 00 00 00 00 00 00 00 00 00 00 81 52 04 06 00 81   ...........R....
+|   3616: 5d 81 55 65 20 65 65 20 65 65 65 20 65 20 65 65   ].Ue ee eee e ee
+|   3632: 20 65 65 65 28 15 20 65 65 20 65 65 65 65 20 65    eee(. ee eeee e
+|   3648: 65 20 65 65 65 20 65 20 65 65 20 65 65 65 20 65   e eee e ee eee e
+|   3664: 20 65 65 20 65 65 65 65 20 65 66 20 65 65 55 20    ee eeee ef eeU 
+|   3680: 65 20 65 55 20 65 65 65 20 65 20 65 65 20 65 65   e eU eee e ee ee
+|   3696: 65 64 20 65 61 c0 65 65 65 20 65 20 65 65 20 65   ed ea.eee e ee e
+|   3712: 65 65 20 79 20 65 65 20 65 65 65 65 65 65 20 65   ee y ee eeeeee e
+|   3728: 65 1f 65 20 65 20 65 20 65 65 20 65 65 65 20 65   e.e e e ee eee e
+|   3744: 65 20 65 65 65 65 65 20 65 65 20 65 20 65 20 65   e eeeee ee e e e
+|   3760: 20 65 65 20 65 65 65 20 6b 85 20 65 65 65 66 65    ee eee k. eeefe
+|   3776: 20 65 65 10 65 20 65 20 65 20 65 65 20 65 65 65    ee.e e e ee eee
+|   3792: 20 65 65 20 65 65 65 65 65 20 65 65 20 65 20 65    ee eeeee ee e e
+|   3808: 20 65 20 65 65 20 65 65 65 20 65 65 20 65 65 6a    e ee eee ee eej
+|   3824: 03 04 00 75 71 65 20 65 65 20 65 65 65 20 65 30   ...uqe ee eee e0
+|   3840: 65 65 20 65 65 65 20 65 20 65 65 20 65 65 65 65   ee eee e ee eeee
+|   3856: 20 65 65 20 65 65 65 20 65 1f 65 65 20 65 65 65    ee eee e.ee eee
+|   3872: 20 65 20 65 65 20 65 65 65 65 65 66 20 65 65 20    e ee eeeeef ee 
+|   3888: 65 21 27 20 65 20 55 65 20 66 65 64 20 65 65 00   e!' e Ue fed ee.
+| page 5 offset 16384
+|   4064: 00 00 00 00 05 04 03 00 10 11 20 05 03 03 00 10   .......... .....
+|   4080: 11 11 05 02 03 00 00 11 11 05 01 03 00 10 09 09   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 01 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| end crash-43ed0ad79c0194.db
+}]} {}
+
+do_catchsql_test 67.1 {
+  SELECT snippet(ttt, null,null,
+      EXISTS(SELECT 1 FROM ttt('e NuOT ee*e*ÏNuOY ee*') ) , '', 
+      (SELECT 1 FROM ttt('eu NuOT ee*e* NuOY ee*'))
+  ), * FROM ttt('e') 
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_test 68.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 32768 pagesize 4096 filename crash-41234e232809e7.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 08   .....@  ........
+|     32: 00 00 00 02 00 00 00 01 00 00 00 09 00 00 00 04   ................
+|     96: 00 00 00 00 0d 0f c7 00 07 0d 92 00 0f 8d 0f 36   ...............6
+|    112: 0e cb 0e 6b 0e 0e 0d b6 0d 92 0d 92 00 00 00 00   ...k............
+|   3472: 00 00 22 08 06 17 11 11 01 31 74 61 62 6c 65 74   .........1tablet
+|   3488: 32 74 32 08 43 52 45 41 54 45 20 54 41 42 4c 45   2t2.CREATE TABLE
+|   3504: 20 74 32 28 78 29 56 07 06 17 1f 1f 01 7d 74 61    t2(x)V.......ta
+|   3520: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   blet1_configt1_c
+|   3536: 6f 6e 66 69 67 07 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
+|   3552: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
+|   3568: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
+|   3584: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 06    WITHOUT ROWID[.
+|   3600: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64   ..!!...tablet1_d
+|   3616: 6f 63 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65   ocsizet1_docsize
+|   3632: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
+|   3648: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
+|   3664: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
+|   3680: 59 2c 20 73 7a 20 42 4c 4f 42 29 5e 05 07 17 21   Y, sz BLOB)^...!
+|   3696: 21 01 81 07 74 61 62 6c 65 74 31 5f 63 6f 6e 74   !...tablet1_cont
+|   3712: 65 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 05 43 52   entt1_content.CR
+|   3728: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63   EATE TABLE 't1_c
+|   3744: 6f 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47   ontent'(id INTEG
+|   3760: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
+|   3776: 63 30 2c 20 63 31 2c 20 63 32 29 69 04 07 17 19   c0, c1, c2)i....
+|   3792: 19 01 81 2d 74 61 62 6c 65 74 31 5f 69 64 78 74   ...-tablet1_idxt
+|   3808: 31 5f 69 64 78 04 43 52 45 41 54 45 20 54 41 42   1_idx.CREATE TAB
+|   3824: 4c 45 20 27 74 31 5f 69 64 78 27 28 73 65 67 69   LE 't1_idx'(segi
+|   3840: 64 2c 20 74 65 72 6d 2c 20 70 67 6e 6f 2c 20 50   d, term, pgno, P
+|   3856: 52 49 4d 41 52 59 20 4b 45 59 28 73 65 67 69 64   RIMARY KEY(segid
+|   3872: 2c 20 74 65 72 6d 29 29 20 57 49 54 48 4f 55 54   , term)) WITHOUT
+|   3888: 20 52 4f 57 49 44 55 03 07 17 1b 1b 01 81 01 74    ROWIDU........t
+|   3904: 61 62 6c 65 74 31 5f 64 61 74 61 74 31 5f 64 61   ablet1_datat1_da
+|   3920: 74 61 03 43 52 45 41 54 45 20 54 41 42 4c 45 20   ta.CREATE TABLE 
+|   3936: 27 74 31 5f 64 61 74 61 27 28 69 64 20 49 4e 54   't1_data'(id INT
+|   3952: 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59   EGER PRIMARY KEY
+|   3968: 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42 29 38 02 06   , block BLOB)8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 35   LE t1 USING fts5
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 00 00 00 00 00 00   (a,b,c).........
+| page 3 offset 8192
+|      0: 0d 00 00 00 03 0c 94 00 0f e6 0f ef 0c 94 00 00   ................
+|     16: 00 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00   ................
+|   3216: 00 00 00 00 86 4a 84 80 80 80 80 01 04 00 8d 18   .....J..........
+|   3232: 00 00 03 2b 02 30 30 01 02 06 01 02 06 01 02 06   ...+.00.........
+|   3248: 1f 02 03 01 02 03 01 02 03 01 08 32 30 31 36 30   ...........20160
+|   3264: 36 30 39 01 02 07 01 02 07 01 02 07 00 01 34 01   609...........4.
+|   3280: 02 05 01 02 05 01 02 05 01 01 35 01 02 04 01 02   ..........5.....
+|   3296: 04 01 02 04 02 07 30 30 30 30 30 30 30 1c 02 04   ......0000000...
+|   3312: 01 02 04 01 02 03 f1 06 62 69 6e 62 72 79 03 06   ........binbry..
+|   3328: 01 02 02 03 06 01 02 02 03 06 01 02 01 03 16 01   ................
+|   3344: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3360: 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02   ................
+|   3376: 03 04 71 02 02 03 06 11 02 02 01 08 63 6f 6d 70   ..q.........comp
+|   3392: 69 6c 65 72 01 02 02 01 02 02 01 02 02 01 06 64   iler...........d
+|   3408: 62 73 74 61 74 07 02 03 01 02 03 01 02 03 02 04   bstat...........
+|   3424: 65 62 75 67 04 02 02 01 02 02 01 02 02 01 06 65   ebug...........e
+|   3440: 6e 61 62 6c 65 07 02 02 01 02 02 01 02 02 01 02   nable...........
+|   3456: 02 01 02 02 01 02 02 01 02 02 01 02 02 01 03 02   ................
+|   3472: 00 02 02 01 02 02 01 02 02 01 02 02 01 02 02 01   ................
+|   3488: 02 02 01 02 02 01 02 02 01 02 02 01 02 02 01 02   ................
+|   3504: 02 01 02 02 02 08 78 74 65 6e 73 69 6f 6e 1f 02   ......xtension..
+|   3520: 04 01 02 04 01 02 04 01 04 66 74 73 34 0a 02 03   .........fts4...
+|   3536: 01 02 03 01 02 03 04 01 35 0d 02 03 01 02 03 01   ........5.......
+|   3552: 02 03 01 03 66 63 63 01 02 03 01 02 03 01 02 03   ....fcc.........
+|   3568: 02 06 65 6f 70 6f 6c 79 10 02 03 01 02 03 01 02   ..eopoly........
+|   3584: 03 01 05 6a 73 6f 5e 31 13 02 03 01 02 03 01 02   ...jso^1........
+|   3600: 03 01 04 6c 6f 61 64 1f 02 03 01 02 03 01 02 03   ...load.........
+|   3616: 01 03 6d 61 78 1c 02 02 01 02 02 01 02 02 02 05   ..max...........
+|   3632: 65 6d 6f 72 79 1c 02 03 01 02 03 01 02 03 04 04   emory...........
+|   3648: 73 79 73 35 16 02 03 01 02 03 01 02 03 01 06 6e   sys5...........n
+|   3664: 6f 63 61 73 65 02 06 01 02 02 03 06 01 02 02 03   ocase...........
+|   3680: 06 01 02 02 03 06 01 02 02 03 06 01 02 02 13 06   ................
+|   3696: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3712: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3728: 02 01 04 6f 6d 69 74 1f 02 02 01 02 02 01 02 02   ...omit.........
+|   3744: 01 05 72 74 72 65 65 19 02 03 01 02 03 01 02 03   ..rtree.........
+|   3760: 04 02 69 6d 01 06 01 02 02 03 06 01 12 02 03 06   ..im............
+|   3776: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3792: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3808: 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02   ................
+|   3824: 01 0a 74 68 72 65 61 64 73 61 66 65 22 02 02 01   ..threadsafe....
+|   3840: 02 02 01 02 02 01 04 76 74 61 62 07 02 04 01 02   .......vtab.....
+|   3856: 04 01 02 04 01 01 78 01 06 01 01 02 01 06 01 01   ......x.........
+|   3872: 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02   ................
+|   3888: 01 06 01 01 02 01 06 01 01 02 01 05 f1 01 02 01   ................
+|   3904: 06 01 01 02 01 06 01 5b 02 01 06 01 01 02 01 06   .......[........
+|   3920: 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01   ................
+|   3936: 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01   ................
+|   3952: 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02   ................
+|   3968: 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01   ................
+|   3984: 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06   ................
+|   4000: 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01   ................
+|   4016: 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01   ................
+|   4032: 02 01 06 01 01 02 01 06 01 01 02 04 15 13 0c 0c   ................
+|   4048: 12 44 13 11 0f 47 13 0f 0c 0e 11 10 0f 0e 10 0f   .D...G..........
+|   4064: 44 0f 10 40 15 0f 07 01 03 00 14 24 5a 24 24 0f   D..@.......$Z$$.
+|   4080: 0a 03 00 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 4 offset 12288
+|      0: 0a 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0b 01 02   ................
+| page 5 offset 16384
+|      0: 0d 00 00 00 24 0c 0a 00 0f d8 0f af 0f 86 0f 74   ....$..........t
+|     16: 0f 61 0f 4e 0f 2f 0f 0f 0e ef 0e d7 0e be 0e a5   .a.N./..........
+|     32: 0e 8d 0e 74 0e 5b 0e 40 0e 24 0e 08 0d ef 0d d5   ...t.[.@.$......
+|     48: 0d bb 0d a0 0d 84 0d 68 0d 4f 0d 35 0d 1b 0c fb   .......h.O.5....
+|     64: 0c da 0c b9 0c 99 0c 78 0c 57 0c 3e 0c 24 0c 0a   .......x.W.>.$..
+|   3072: 00 00 00 00 00 00 00 00 00 00 18 24 05 00 25 0f   ...........$..%.
+|   3088: 19 54 48 52 45 41 44 53 41 46 45 3d 30 58 42 49   .THREADSAFE=0XBI
+|   3104: 4f 41 52 59 18 23 05 00 25 0f 19 54 48 52 45 41   OARY.#..%..THREA
+|   3120: 44 53 41 46 45 3d 30 58 4e 4f 43 41 53 45 17 22   DSAFE=0XNOCASE..
+|   3136: 05 00 25 0f 17 54 48 52 45 41 44 53 41 46 45 3d   ..%..THREADSAFE=
+|   3152: 30 58 52 54 52 49 4d 1f 21 05 00 33 0f 19 4f 4d   0XRTRIM.!..3..OM
+|   3168: 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49 4f   IT LOAD EXTENSIO
+|   3184: 4e 58 42 49 4e 41 52 59 1f 20 05 00 33 0f 19 4f   NXBINARY. ..3..O
+|   3200: 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49   MIT LOAD EXTENSI
+|   3216: 4f 4e 58 4e 4f 43 41 53 45 1e 1f 05 00 33 0f 17   ONXNOCASE....3..
+|   3232: 4f 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53   OMIT LOAD EXTENS
+|   3248: 49 4f 4e 58 52 54 52 49 4d 1f 1e 05 00 33 0f 19   IONXRTRIM....3..
+|   3264: 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30 30   MAX MEMORY=50000
+|   3280: 30 30 30 58 42 49 4e 41 52 59 1f 1d 05 00 33 0f   000XBINARY....3.
+|   3296: 19 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30   .MAX MEMORY=5000
+|   3312: 30 30 30 30 58 4e 4f 43 41 53 45 1e 1c 05 00 33   0000XNOCASE....3
+|   3328: 0f 17 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30   ..MAX MEMORY=500
+|   3344: 30 30 30 30 30 58 52 54 52 49 4d 18 1b 05 00 25   00000XRTRIM....%
+|   3360: 0f 19 45 4e 41 42 4c 45 20 52 54 52 45 45 58 42   ..ENABLE RTREEXB
+|   3376: 49 4e 41 52 59 18 1a 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3392: 4c 45 20 52 54 52 46 45 58 4e 4f 43 41 53 45 17   LE RTRFEXNOCASE.
+|   3408: 19 05 00 25 0f 17 45 4e 41 42 4c 45 20 52 54 52   ...%..ENABLE RTR
+|   3424: 45 45 58 52 54 52 49 4d 1a 18 05 00 29 0f 19 45   EEXRTRIM....)..E
+|   3440: 49 41 42 4c 45 20 4d 45 4d 53 59 53 35 58 42 49   IABLE MEMSYS5XBI
+|   3456: 4e 41 52 59 1a 17 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3472: 45 20 4d 45 4d 53 59 53 35 58 4e 4f 43 41 53 45   E MEMSYS5XNOCASE
+|   3488: 19 16 05 00 29 0f 17 45 4e 41 42 4c 45 20 4d 45   ....)..ENABLE ME
+|   3504: 4d 53 59 53 35 58 52 54 52 49 4d 18 15 05 00 25   MSYS5XRTRIM....%
+|   3520: 0f 19 45 4e 41 42 4c 45 20 4a 53 4f 4e 31 58 42   ..ENABLE JSON1XB
+|   3536: 49 4e 41 52 59 18 14 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3552: 4c 45 20 4a 53 4f 4e 31 58 4e 4f 43 41 53 45 17   LE JSON1XNOCASE.
+|   3568: 13 05 00 25 0f 17 45 4e 41 42 4c 45 20 4a 53 4f   ...%..ENABLE JSO
+|   3584: 4e 31 58 52 54 52 49 4d 1a 12 05 00 29 0f 19 45   N1XRTRIM....)..E
+|   3600: 4e 41 42 4c 45 20 47 45 4f 50 4f 4c 59 57 42 49   NABLE GEOPOLYWBI
+|   3616: 4e 41 52 59 1a 11 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3632: 45 20 47 45 4f 50 4f 4c 59 58 4e 4f 42 41 53 45   E GEOPOLYXNOBASE
+|   3648: 19 10 05 00 29 0f 17 45 4e 41 42 4c 45 20 47 45   ....)..ENABLE GE
+|   3664: 4f 50 4f 4c 59 58 52 54 52 49 4d 17 0f 05 00 23   OPOLYXRTRIM....#
+|   3680: 0f 19 45 4e 41 42 4c 45 20 46 54 53 35 58 42 49   ..ENABLE FTS5XBI
+|   3696: 4e 41 52 59 17 0e 05 00 23 0f 19 45 4e 41 42 4c   NARY....#..ENABL
+|   3712: 45 20 46 54 53 35 58 4e 4f 43 41 53 45 16 0d 05   E FTS5XNOCASE...
+|   3728: 00 23 0f 17 45 4e 41 42 4c 45 20 46 54 53 35 58   .#..ENABLE FTS5X
+|   3744: 52 54 52 49 4d 17 0c 05 00 23 0f 19 45 4e 41 42   RTRIM....#..ENAB
+|   3760: 4c 45 20 46 54 53 34 58 42 49 4e 41 52 59 17 0b   LE FTS4XBINARY..
+|   3776: 05 00 23 0f 19 45 4e 41 42 4c 45 20 46 54 53 34   ..#..ENABLE FTS4
+|   3792: 58 4e 4f 43 41 53 45 16 0a 05 00 23 0f 17 45 4e   XNOCASE....#..EN
+|   3808: 41 42 4c 45 20 46 54 53 34 58 52 54 52 49 4d 1e   ABLE FTS4XRTRIM.
+|   3824: 09 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3840: 54 41 54 20 56 54 41 42 58 42 49 4e 41 52 59 1e   TAT VTABXBINARY.
+|   3856: 08 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3872: 54 41 54 20 56 54 41 42 58 4e 4f 43 41 53 45 1d   TAT VTABXNOCASE.
+|   3888: 07 05 00 31 0f 17 b7 4e 41 42 4c 45 20 44 42 53   ...1...NABLE DBS
+|   3904: 54 41 54 20 66 54 41 42 58 52 54 52 49 4d 11 06   TAT fTABXRTRIM..
+|   3920: 05 00 17 0f 19 44 45 42 55 47 58 42 49 4e 41 52   .....DEBUGXBINAR
+|   3936: 59 11 05 05 00 17 0f 19 44 45 42 55 47 58 4e 4f   Y.......DEBUGXNO
+|   3952: 43 41 53 45 10 04 05 00 17 0f 17 44 45 42 55 47   CASE.......DEBUG
+|   3968: 58 62 54 52 49 4d 27 03 05 00 43 0f 19 43 4f 4d   XbTRIM'...C..COM
+|   3984: 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e 30 20   PILER=gcc-5.4.0 
+|   4000: 32 30 31 36 30 36 30 39 52 02 4a 4e 41 52 59 27   20160609R.JNARY'
+|   4016: 02 05 00 43 0f 19 43 4f 4d 50 49 4c 45 52 3d 67   ...C..COMPILER=g
+|   4032: 63 63 2d 35 2e 34 2e 30 20 32 30 31 36 30 36 30   cc-5.4.0 2016060
+|   4048: 39 58 4e 4f 43 41 53 45 26 01 05 00 43 0f 17 43   9XNOCASE&...C..C
+|   4064: 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e   OMPILER=gcc-5.4.
+|   4080: 30 20 32 30 31 36 30 36 30 39 58 52 54 52 49 4d   0 20160609XRTRIM
+| page 6 offset 20480
+|      0: 0d 00 00 00 24 0e e0 00 0f f8 0f f0 0f e8 0f e0   ....$...........
+|     16: 0f d8 0f d0 0f c8 0f c0 0f b8 0f b0 0f a8 0f a0   ................
+|     32: 0f 98 0f 90 0f 88 0f 80 0f 78 0f 70 0f 68 0f 60   .........x.p.h.`
+|     48: 0f 58 0f 50 0f 48 0f 40 0f 38 0f 30 0f 28 0f 20   .X.P.H.@.8.0.(. 
+|     64: 0f 18 0f 10 0f 08 0f 00 0e f8 0e f0 0e e8 0e e0   ................
+|   3808: 06 24 03 00 12 02 01 01 06 23 03 00 12 02 01 01   .$.......#......
+|   3824: 06 22 03 00 12 02 01 01 06 21 03 00 12 03 01 01   .........!......
+|   3840: 06 20 03 00 12 03 01 01 06 1f 03 00 12 03 01 01   . ..............
+|   3856: 06 1e 03 00 12 03 01 01 06 1d 03 00 12 03 01 01   ................
+|   3872: 06 1c 03 00 12 03 01 01 06 1b 03 00 12 02 01 01   ................
+|   3888: 06 1a 03 00 12 02 01 01 06 19 03 00 12 02 01 01   ................
+|   3904: 06 18 03 00 12 02 01 01 06 17 03 00 12 02 01 01   ................
+|   3920: 06 16 03 00 12 02 01 01 06 15 03 00 12 02 01 01   ................
+|   3936: 06 14 03 00 12 02 01 01 06 13 03 00 12 02 01 01   ................
+|   3952: 06 12 03 00 12 02 01 01 06 11 03 00 12 02 01 01   ................
+|   3968: 06 10 03 00 12 02 01 01 06 0f 03 00 12 02 01 01   ................
+|   3984: 06 0e 03 00 12 02 01 01 06 0d 03 00 12 02 01 01   ................
+|   4000: 06 0c 03 00 12 02 01 01 06 0b 03 00 12 02 01 01   ................
+|   4016: 06 0a 03 00 12 02 01 01 06 09 03 00 12 03 01 01   ................
+|   4032: 06 08 03 00 12 03 01 01 06 07 03 00 12 03 01 01   ................
+|   4048: 06 06 03 00 12 01 01 01 06 05 03 00 12 01 01 01   ................
+|   4064: 06 04 03 00 12 01 01 01 06 03 03 00 12 06 01 01   ................
+|   4080: 06 02 03 00 12 06 01 01 06 01 03 00 12 06 01 01   ................
+| page 7 offset 24576
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 8 offset 28672
+|      0: 0d 00 00 00 03 0f d6 00 0f f4 0f e9 0f d6 00 00   ................
+|   4048: 00 00 00 00 00 00 11 04 02 2b 69 6e 74 65 67 72   .........+integr
+|   4064: 69 74 79 2d 63 68 65 63 6b 09 02 02 1b 72 65 62   ity-check....reb
+|   4080: 75 69 6c 64 0a 01 02 1d 6f 70 74 69 5d 69 71 a5   uild....opti]iq.
+| end crash-41234e232809e7.db
+.testctrl prng_seed 1 db
+}]} {}
+
+do_catchsql_test 68.1 { 
+  PRAGMA reverse_unordered_selects=ON;
+  INSERT INTO t1(t1) SELECT x FROM t2;
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 69.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 32768 pagesize 4096 filename crash-31c462b8b665d0.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 08   .....@  ........
+|     32: 00 00 00 02 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|     96: 00 00 00 00 0d 0f c7 00 07 0d 92 00 0f 8d 0f 36   ...............6
+|    112: 0e cb 0e 6b 0e 0e 0d b6 0d 92 00 00 00 00 00 00   ...k............
+|   3472: 00 00 22 08 06 17 11 11 01 31 74 61 62 6c 65 74   .........1tablet
+|   3488: 32 74 32 08 43 52 45 41 54 45 20 54 41 42 4c 45   2t2.CREATE TABLE
+|   3504: 20 74 32 28 78 29 56 07 06 17 1f 1f 01 7d 74 61    t2(x)V.......ta
+|   3520: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   blet1_configt1_c
+|   3536: 6f 6e 66 69 67 07 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
+|   3552: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
+|   3568: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
+|   3584: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 06    WITHOUT ROWID[.
+|   3600: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64   ..!!...tablet1_d
+|   3616: 6f 63 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65   ocsizet1_docsize
+|   3632: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
+|   3648: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
+|   3664: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
+|   3680: 59 2c 20 73 7a 20 42 4c 4f 42 29 5e 05 07 17 21   Y, sz BLOB)^...!
+|   3696: 21 01 81 07 74 61 62 6c 65 74 31 5f 63 6f 6e 74   !...tablet1_cont
+|   3712: 65 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 05 43 52   entt1_content.CR
+|   3728: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63   EATE TABLE 't1_c
+|   3744: 6f 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47   ontent'(id INTEG
+|   3760: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
+|   3776: 63 39 2c 20 63 31 2c 20 63 32 29 69 04 07 17 19   c9, c1, c2)i....
+|   3792: 19 01 81 2d 74 61 62 6c 65 74 31 5f 69 64 78 74   ...-tablet1_idxt
+|   3808: 31 5f 69 64 78 04 43 52 45 41 54 45 20 54 41 42   1_idx.CREATE TAB
+|   3824: 4c 45 20 27 74 31 5f 69 64 78 27 28 73 65 67 69   LE 't1_idx'(segi
+|   3840: 64 2c 20 74 65 72 6d 2c 20 70 67 6e 6f 2c 20 50   d, term, pgno, P
+|   3856: 52 49 4d 41 52 59 20 4b 45 59 28 73 65 67 69 64   RIMARY KEY(segid
+|   3872: 2c 20 74 65 72 6d 29 29 20 57 49 54 48 4f 55 54   , term)) WITHOUT
+|   3888: 20 52 4f 57 49 44 55 03 07 17 1b 1b 01 81 01 74    ROWIDU........t
+|   3904: 61 62 6c 65 74 31 5f 64 61 74 61 74 31 5f 64 61   ablet1_datat1_da
+|   3920: 74 61 03 43 52 45 41 54 45 20 54 41 42 4c 45 20   ta.CREATE TABLE 
+|   3936: 27 74 31 5f 64 61 74 61 27 28 69 64 20 49 4e 54   't1_data'(id INT
+|   3952: 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59   EGER PRIMARY KEY
+|   3968: 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42 29 38 02 06   , block BLOB)8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 35   LE t1 USING fts5
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 00 00 00 00 00 00   (a,b,c).........
+| page 3 offset 8192
+|      0: 0d 00 00 00 03 0c 94 00 0f e6 0f ef 0c 94 00 00   ................
+|   3216: 00 00 00 00 86 4a 84 80 80 80 80 01 04 00 8d 18   .....J..........
+|   3232: 00 00 03 2b 02 30 30 01 02 06 01 02 06 01 02 06   ...+.00.........
+|   3248: 1f 02 03 01 02 03 01 02 03 01 08 32 30 31 36 30   ...........20160
+|   3264: 36 30 39 01 02 07 01 02 07 01 02 07 01 01 34 01   609...........4.
+|   3280: 02 05 01 02 05 01 02 05 01 01 35 01 02 04 01 02   ..........5.....
+|   3296: 04 01 02 04 02 07 30 30 30 30 30 30 30 1c 02 04   ......0000000...
+|   3312: 01 02 04 01 02 04 01 06 62 69 6e 61 72 79 03 06   ........binary..
+|   3328: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3344: 02 02 03 06 00 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3360: 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02   ................
+|   3376: 03 06 01 02 02 03 06 01 02 02 01 08 63 6f 6d 70   ............comp
+|   3392: 69 6c 65 72 01 02 02 01 02 02 01 02 02 01 06 64   iler...........d
+|   3408: 62 73 74 61 74 07 02 03 01 02 03 01 02 03 02 04   bstat...........
+|   3424: 65 62 75 67 04 02 02 01 02 02 01 02 02 01 06 65   ebug...........e
+|   3440: 6e 61 62 6c 65 07 02 02 01 02 02 01 02 02 01 02   nable...........
+|   3456: 02 01 02 02 01 02 02 01 02 02 01 02 02 01 02 02   ................
+|   3472: 01 02 02 01 02 02 01 02 02 01 02 02 01 02 02 01   ................
+|   3488: 01 02 01 02 02 01 02 02 01 02 02 01 02 02 01 02   ................
+|   3504: 02 01 02 02 02 08 78 74 65 6e 73 69 6f 6e 1f 02   ......xtension..
+|   3520: 04 01 02 04 01 02 04 01 04 66 74 73 34 1a 02 03   .........fts4...
+|   3536: 01 02 03 01 02 03 04 01 35 0d 02 03 01 02 03 01   ........5.......
+|   3552: 02 03 01 03 67 63 63 01 aa 03 01 02 03 01 02 03   ....gcc.........
+|   3568: 02 06 65 6f 70 6f 6c 79 10 02 03 02 02 03 01 02   ..eopoly........
+|   3584: 03 01 05 6a 73 6f 6e 31 13 02 03 01 02 03 01 02   ...json1........
+|   3600: 03 01 04 6c 6f 61 64 1f 02 03 01 02 03 01 02 03   ...load.........
+|   3616: 01 03 6d 61 78 1c 02 02 01 02 02 01 02 02 02 05   ..max...........
+|   3632: 65 6d 6f 72 79 1c 02 03 01 02 03 01 02 03 04 04   emory...........
+|   3648: 73 79 73 35 16 02 03 01 02 03 01 02 03 01 06 6e   sys5...........n
+|   3664: 6f 63 61 73 65 02 06 01 02 02 03 06 01 02 02 03   ocase...........
+|   3680: 06 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06   ................
+|   3696: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3712: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3728: 02 01 04 6f 6d 69 74 1f 02 02 01 02 02 01 02 01   ...omit.........
+|   3744: ff ff ff ff ff ff ff ff f0 00 00 00 00 00 01 02   ................
+|   3760: 58 81 96 4d 01 06 01 02 02 03 06 01 02 02 03 06   X..M............
+|   3776: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3792: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3808: 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02   ................
+|   3824: 01 0a 74 68 72 65 61 64 73 61 66 65 22 02 02 01   ..threadsafe....
+|   3840: 02 02 01 02 02 01 04 76 74 61 62 07 02 04 01 02   .......vtab.....
+|   3856: 04 01 02 04 01 01 78 01 06 01 01 02 01 06 01 01   ......x.........
+|   3872: 02 01 06 01 1e 02 01 06 01 01 02 01 06 01 01 02   ................
+|   3888: 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01   ................
+|   3904: 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06   ................
+|   3920: 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01   ................
+|   3936: 00 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01   ................
+|   3952: 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02   ................
+|   3968: 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01   ................
+|   3984: 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06   ................
+|   4000: 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01   ................
+|   4016: 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01   ................
+|   4032: 02 01 06 01 01 02 01 06 01 01 02 04 15 13 0c 0c   ................
+|   4048: 12 44 13 11 0f 47 13 0f 0b 0e 11 10 0f 0e 10 0f   .D...G..........
+|   4064: 44 0f 10 40 15 0f 07 01 03 00 14 24 5a 24 24 0f   D..@.......$Z$$.
+|   4080: 0a 03 00 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 4 offset 12288
+|      0: 0a 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
+| page 5 offset 16384
+|      0: 0d 00 00 00 24 0c 0a 00 0f d8 0f af 0f 86 0f 74   ....$..........t
+|     16: 0f 61 0f 4e 0f 2f 0f 0f 0e ef 0e d7 0e be 0e a5   .a.N./..........
+|     32: 0e 8d 0e 74 0e 5b 0e 40 0e 24 0e 08 0d ef 0d d5   ...t.[.@.$......
+|     48: 0d bb 0d a0 0d 84 0d 68 0d 4f 0d 00 00 00 00 00   .......h.O......
+|   3072: 00 00 00 00 00 00 00 00 00 00 18 24 05 00 25 0f   ...........$..%.
+|   3088: 19 54 48 52 45 41 44 53 41 46 45 3d 30 58 42 49   .THREADSAFE=0XBI
+|   3104: 4e 41 52 59 18 23 05 00 25 0f 19 54 48 52 45 41   NARY.#..%..THREA
+|   3120: 44 53 41 46 45 3d 30 58 4e 4f 43 41 53 45 17 22   DSAFE=0XNOCASE..
+|   3136: 05 00 25 0f 17 54 48 52 45 41 44 53 41 46 45 3d   ..%..THREADSAFE=
+|   3152: 30 58 52 54 52 49 4d 1f 21 05 00 33 0f 19 4f 4d   0XRTRIM.!..3..OM
+|   3168: 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49 4f   IT LOAD EXTENSIO
+|   3184: 4e 58 42 49 4e 41 52 59 1f 20 05 00 33 d3 19 4f   NXBINARY. ..3..O
+|   3200: 4d 49 54 28 2c 4f 41 44 b2 04 55 85 44 54 e5 34   MIT(,OAD..U.DT.4
+|   3216: 94 f4 e5 84 e4 f4 34 15 34 51 e1 f0 50 03 30 f1   ......4.4Q..P.0.
+|   3232: 74 f4 d4 95 42 04 c4 f4 14 42 04 55 85 44 54 e5   t...B....B.U.DT.
+|   3248: 34 94 f4 e5 85 25 45 24 94 d1 f1 e0 50 03 30 f1   4....%E$....P.0.
+|   3264: 94 d4 15 82 04 d4 54 d4 f5 25 93 d3 53 03 03 03   ......T..%..S...
+|   3280: 03 03 03 05 84 24 94 e4 15 25 91 f1 d0 50 03 30   .....$...%...P.0
+|   3296: f1 94 d4 15 82 04 d4 54 d4 f5 25 93 d3 53 03 03   .......T..%..S..
+|   3312: 03 03 03 03 05 84 e4 f4 34 15 34 51 e1 c0 50 03   ........4.4Q..P.
+|   3328: 30 f1 74 d4 15 82 04 d4 54 d4 f5 25 93 d3 53 03   0.t.....T..%..S.
+|   3344: 03 03 03 03 03 05 85 25 45 24 94 d1 81 b0 50 02   .......%E$....P.
+|   3360: 50 f1 94 54 e4 14 24 c4 52 05 25 45 24 54 55 84   P..T..$.R.%E$TU.
+|   3376: 24 94 e4 15 25 91 81 a0 50 02 50 f1 94 54 e4 14   $...%...P.P..T..
+|   3392: 24 c4 52 05 25 45 24 54 55 84 e4 f4 34 15 34 51   $.R.%E$TU...4.4Q
+|   3408: 71 90 50 02 50 f1 74 54 e4 14 24 c4 52 05 25 45   q.P.P.tT..$.R.%E
+|   3424: 24 54 55 85 25 45 24 94 d1 a1 80 50 02 90 f1 94   $TU.%E$....P....
+|   3440: 54 e4 14 24 c4 52 04 d4 54 d5 35 95 33 55 84 24   T..$.R..T.5.3U.$
+|   3456: 94 e4 15 25 91 a1 70 50 02 90 f1 94 54 e4 14 24   ...%..pP....T..$
+|   3472: c4 52 04 d4 54 d5 35 95 33 55 84 e4 f4 34 15 34   .R..T.5.3U...4.4
+|   3488: 51 91 60 50 02 90 f1 74 54 e4 14 24 c4 52 04 d4   Q.`P...tT..$.R..
+|   3504: 54 d5 35 95 33 55 85 25 45 24 94 d1 81 50 50 02   T.5.3U.%E$...PP.
+|   3520: 50 f1 94 54 e4 14 24 c4 52 04 a5 34 f4 e3 15 84   P..T..$.R..4....
+|   3536: 24 94 e4 15 25 91 81 40 50 02 50 f1 94 54 e4 14   $...%..@P.P..T..
+|   3552: 24 c4 52 04 a5 34 f4 e3 15 84 e4 f4 34 15 34 51   $.R..4......4.4Q
+|   3568: 71 30 50 02 4f f1 74 54 e4 14 24 c4 52 04 a5 34   q0P.O.tT..$.R..4
+|   3584: f4 e3 15 85 25 45 24 94 d1 a1 20 50 02 90 f1 94   ....%E$... P....
+|   3600: 54 e4 14 24 c4 52 04 74 54 f5 04 f4 c5 95 84 24   T..$.R.tT......$
+|   3616: 94 e4 15 25 91 a1 10 50 02 90 f1 94 54 e4 14 24   ...%...P....T..$
+|   3632: c4 52 04 74 54 f5 04 f4 c5 95 84 e4 f4 34 15 34   .R.tT........4.4
+|   3648: 51 91 00 50 02 90 f1 74 54 e4 14 24 c4 51 f4 74   Q..P...tT..$.Q.t
+|   3664: 54 f5 04 f4 c5 95 85 25 45 24 94 d1 70 f0 50 02   T......%E$..p.P.
+|   3680: 30 f1 94 54 e4 14 24 c5 20 46 54 53 35 58 42 49   0..T..$. FTS5XBI
+|   3696: 4e 41 52 59 17 0e 05 00 23 0f 19 45 4e 41 42 4c   NARY....#..ENABL
+|   3712: 45 20 46 54 53 35 58 4f 4f 43 41 53 45 16 0d 05   E FTS5XOOCASE...
+|   3728: 00 23 0f 17 45 4e 41 42 4c 45 20 46 54 53 35 58   .#..ENABLE FTS5X
+|   3744: 52 54 52 49 4d 17 0c 05 00 23 0f 19 45 4e 41 42   RTRIM....#..ENAB
+|   3760: 4c 45 20 46 54 53 34 58 42 49 4e 41 52 59 97 0b   LE FTS4XBINARY..
+|   3776: 05 00 23 0f 19 45 4e 41 42 4c 45 20 46 54 53 34   ..#..ENABLE FTS4
+|   3792: 58 4e 4f 43 41 53 45 16 0a 05 00 23 0f 17 45 4e   XNOCASE....#..EN
+|   3808: 41 42 4c 45 20 46 54 53 34 58 52 54 52 49 4d 1e   ABLE FTS4XRTRIM.
+|   3824: 09 05 00 3e 5f 19 45 4e 41 42 4c 45 20 44 42 53   ...>_.ENABLE DBS
+|   3840: 44 41 54 20 56 54 41 42 58 42 49 4e 41 52 59 1e   DAT VTABXBINARY.
+|   3856: 08 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3872: 54 41 54 20 56 54 41 42 58 4e 4f 43 4d e3 45 1d   TAT VTABXNOCM.E.
+|   3888: 07 05 00 31 0f 17 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3904: 54 41 54 20 56 54 41 42 58 52 54 52 49 4d 11 06   TAT VTABXRTRIM..
+|   3920: 05 00 17 0f 19 44 45 42 55 47 58 42 49 4e 41 52   .....DEBUGXBINAR
+|   3936: 59 11 05 05 00 17 0f 19 44 45 42 55 47 58 4e 4f   Y.......DEBUGXNO
+|   3952: 43 41 53 45 10 02 02 50 08 5f 17 44 45 42 55 47   CASE...P._.DEBUG
+|   3968: 58 52 54 52 49 4d 27 03 05 00 44 0f 19 43 4f 4d   XRTRIM'...D..COM
+|   3984: 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e 30 20   PILER=gcc-5.4.0 
+|   4000: 32 30 31 36 30 36 30 39 58 42 49 4e 41 52 59 27   20160609XBINARY'
+|   4016: 02 05 00 43 0f 19 43 4f 4d 50 49 4c 45 52 3d 67   ...C..COMPILER=g
+|   4032: 63 63 2d 35 2e 34 2e 30 20 32 30 31 36 30 36 30   cc-5.4.0 2016060
+|   4048: 39 58 4e 4f 43 41 53 45 26 01 05 00 43 c9 17 43   9XNOCASE&...C..C
+|   4064: 4f 4d 50 49 4c 47 02 3d 67 63 63 2d 35 2e 34 2e   OMPILG.=gcc-5.4.
+|   4080: 30 20 32 30 31 36 30 36 30 39 58 52 54 52 49 4d   0 20160609XRTRIM
+| page 6 offset 20480
+|      0: 0d 00 00 00 24 0e e0 00 0f f8 0f f0 0f e8 0f e0   ....$...........
+|     16: 0f d8 0f d0 0f c8 0f c0 0f b8 0f b0 0f a8 0f a0   ................
+|     32: 0f 98 0f 90 0f 88 0f 80 0f 78 0f 70 0f 68 0f 60   .........x.p.h.`
+|     48: 0f 58 0f 50 0f 48 0f 40 0f 38 00 00 00 00 00 00   .X.P.H.@.8......
+|   3808: 06 24 03 00 12 02 01 01 06 23 03 00 12 02 01 01   .$.......#......
+|   3824: 06 22 03 00 12 02 01 01 06 21 03 00 12 03 01 01   .........!......
+|   3840: 06 20 03 00 12 03 01 01 06 1f 03 00 12 03 01 01   . ..............
+|   3856: 06 1e 03 00 12 03 01 01 06 1d 03 00 12 03 01 01   ................
+|   3872: 06 1c 03 00 12 03 01 01 06 1b 03 00 12 02 01 01   ................
+|   3888: 06 1a 03 00 12 02 01 01 06 19 03 00 12 02 01 01   ................
+|   3904: 06 18 03 00 12 02 01 01 06 17 03 00 12 02 01 01   ................
+|   3920: 06 16 03 00 12 02 01 01 06 15 03 00 12 02 01 01   ................
+|   3936: 06 14 03 00 12 02 01 01 06 13 03 00 12 02 01 01   ................
+|   3952: 06 12 03 00 12 02 01 01 06 11 03 00 12 02 01 01   ................
+|   3968: 06 10 03 00 12 02 01 01 06 1f 03 00 12 02 01 01   ................
+|   3984: 06 0e 03 00 12 02 01 01 06 0d 03 00 12 02 01 01   ................
+|   4000: 06 0c 03 00 12 02 01 01 06 0b 03 00 12 02 01 01   ................
+|   4016: 06 0a 03 00 12 02 01 01 06 09 03 00 12 03 01 01   ................
+|   4032: 06 08 03 00 12 03 01 01 06 07 03 00 12 03 01 01   ................
+|   4048: 06 06 03 00 12 01 01 01 06 05 03 00 12 01 01 01   ................
+|   4064: 06 04 03 00 12 01 01 01 06 03 03 00 12 06 01 01   ................
+|   4080: 06 02 03 00 12 06 01 01 06 01 03 00 12 06 01 01   ................
+| page 7 offset 24576
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 8 offset 28672
+|      0: 0d 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4048: 00 00 00 00 00 00 11 03 02 2b 69 6e 74 65 67 72   .........+integr
+|   4064: 69 74 79 2d 63 68 65 63 6b 09 00 00 00 00 00 00   ity-check.......
+| end crash-31c462b8b665d0.db
+}]} {}
+
+
+do_catchsql_test 69.2 {
+  SELECT * FROM t1 WHERE a MATCH 'fx*'
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 70.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 24576 pagesize 4096 filename sql022250.txt.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 00   .....@  ........
+|     96: 00 00 00 00 0d 00 00 00 06 0d e2 00 0f c4 0f 6a   ...............j
+|    112: 0e fc 0e 9d 0e 3d 0d e2 00 00 00 00 00 00 00 00   .....=..........
+|   3552: 00 00 59 06 06 17 21 21 01 7f 74 61 62 6c 65 74   ..Y...!!..tablet
+|   3568: 74 74 5f 63 6f 6e 66 69 67 74 74 74 5f 63 6f 6e   tt_configttt_con
+|   3584: 66 69 67 06 43 52 45 41 54 45 20 54 41 42 4c 45   fig.CREATE TABLE
+|   3600: 20 27 74 74 74 5f 63 6f 6e 66 69 67 27 28 6b 20    'ttt_config'(k 
+|   3616: 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29 20   PRIMARY KEY, v) 
+|   3632: 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5e 15 07   WITHOUT ROWID^..
+|   3648: 17 23 23 01 81 03 74 61 62 6c 65 74 74 74 5f 64   .##...tablettt_d
+|   3664: 6f 63 73 69 7a 65 74 74 74 5f 64 6f 63 73 69 7a   ocsizettt_docsiz
+|   3680: 65 05 43 52 45 41 54 45 20 54 41 42 4c 45 20 27   e.CREATE TABLE '
+|   3696: 74 74 74 5f 64 6f 63 73 69 7a 65 27 28 69 64 20   ttt_docsize'(id 
+|   3712: 49 4d 54 45 47 45 52 20 50 52 49 4d 41 52 59 20   IMTEGER PRIMARY 
+|   3728: 4b 45 59 2c 20 73 7a 20 42 4c 4f 20 29 5d 04 07   KEY, sz BLO )]..
+|   3744: 17 23 23 01 81 01 74 61 62 6c 65 74 74 74 5f 63   .##...tablettt_c
+|   3760: 6f 6e 74 65 6e 74 74 74 74 5f 63 6f 6e 74 65 6e   ontentttt_conten
+|   3776: 74 04 43 52 45 41 54 45 20 54 41 42 4c 45 20 27   t.CREATE TABLE '
+|   3792: 74 74 74 5f 63 6f 6e 74 65 6e 74 27 28 69 64 20   ttt_content'(id 
+|   3808: 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59 20   INTEGER PRIMARY 
+|   3824: 4b 45 59 2c 20 63 30 2c 20 63 31 29 6c 03 07 17   KEY, c0, c1)l...
+|   3840: 1b 1b 01 81 2f 74 61 62 6c 65 74 74 74 5f 69 64   ..../tablettt_id
+|   3856: 78 74 74 74 5f 69 64 78 03 43 52 45 41 54 45 20   xttt_idx.CREATE 
+|   3872: 54 41 42 4c 45 20 27 74 74 74 5f 69 64 78 27 28   TABLE 'ttt_idx'(
+|   3888: 73 65 67 69 64 2c 20 74 65 72 6d 2c 20 70 67 6e   segid, term, pgn
+|   3904: 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45 59 28 73   o, PRIMARY KEY(s
+|   3920: 65 67 69 64 2c 20 74 65 72 6d 29 29 20 57 49 54   egid, term)) WIT
+|   3936: 48 4f 55 54 20 52 4f 57 49 44 58 02 07 17 1d 1d   HOUT ROWIDX.....
+|   3952: 01 81 03 74 61 62 6c 65 74 74 74 5f 64 61 74 61   ...tablettt_data
+|   3968: 74 74 74 5f 64 61 74 61 02 43 52 45 41 54 45 20   ttt_data.CREATE 
+|   3984: 54 41 42 4c 45 20 27 74 74 74 5f 64 61 74 61 27   TABLE 'ttt_data'
+|   4000: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   (id INTEGER PRIM
+|   4016: 41 52 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42   ARY KEY, block B
+|   4032: 4c 4f 42 29 3a 01 06 17 13 13 08 5f 74 61 62 6c   LOB):......_tabl
+|   4048: 65 74 74 74 74 74 74 43 52 45 41 54 45 20 56 49   ettttttCREATE VI
+|   4064: 52 54 55 41 4c 20 54 41 42 4c 45 20 74 74 74 20   RTUAL TABLE ttt 
+|   4080: 55 53 49 4e 47 20 66 74 73 35 28 61 2c 20 62 29   USING fts5(a, b)
+| page 2 offset 4096
+|      0: 0d 0f 54 00 05 0e 81 00 0f e7 0e 81 0f af 0f 58   ..T............X
+|     16: 0e 98 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   3712: 00 15 0a 03 00 30 00 00 00 00 01 03 03 00 03 01   .....0..........
+|   3728: 01 01 02 01 01 03 01 01 81 24 8c 80 80 80 80 01   .........$......
+|   3744: 04 00 82 4c 00 00 00 9b 02 30 65 03 1a 02 05 05   ...L.....0e.....
+|   3760: 07 05 01 01 04 03 03 08 03 03 01 2e 02 05 05 07   ................
+|   3776: 05 07 05 07 05 01 01 14 03 03 08 03 03 08 03 bf   ................
+|   3792: 07 f2 f3 02 01 65 03 1e 03 05 05 04 05 05 01 01   .....e..........
+|   3808: 03 06 04 04 06 04 03 01 36 03 05 05 04 05 05 04   ........6.......
+|   3824: 05 15 04 05 05 01 01 03 06 04 04 06 04 04 a1 04   ................
+|   3840: 04 06 04 03 03 01 65 03 14 04 05 07 05 05 01 01   ......e.........
+|   3856: 02 09 0a 01 20 04 05 07 05 07 05 07 05 05 01 01   .... ...........
+|   3872: 02 0f da 0a 0a 04 01 64 f3 02 0a 01 06 0a 0a 0a   .......d........
+|   3888: 05 01 65 03 06 01 01 0a 01 0a 01 01 0a 0a 0a 04   ..e.............
+|   3904: 2b 31 21 0b 0f ef 00 14 2a 00 00 00 00 01 02 02   +1!.....*.......
+|   3920: 00 02 01 01 01 02 01 01 50 88 80 80 80 80 01 04   ........P.......
+|   3936: 00 81 24 00 00 00 47 01 30 65 02 1a 02 05 05 07   ..$...G.0e......
+|   3952: 05 01 01 04 03 03 08 03 03 02 01 65 02 1d f3 05   ...........e....
+|   3968: 05 04 05 05 01 01 04 06 04 04 06 04 03 03 01 65   ...............e
+|   3984: 02 14 04 05 07 05 05 01 01 02 08 0a 04 01 65 02   ..............e.
+|   4000: 02 0a 05 01 65 02 06 01 01 0a 04 12 14 0f 06 31   ....e..........1
+|   4016: 84 80 80 80 80 01 03 00 68 00 00 00 2b 02 30 65   ........h...+.0e
+|   4032: 01 10 02 05 05 01 01 04 03 03 02 01 66 01 12 03   ............f...
+|   4048: 05 05 01 01 03 06 04 03 03 01 65 01 0e 04 05 05   ..........e.....
+|   4064: 01 01 02 08 04 0d 0e 06 01 03 00 12 04 4c 4c 00   .............LL.
+|   4080: 00 00 11 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 3 offset 8192
+|      0: 0a 2f 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ./..............
+| page 4 offset 12288
+|   3344: 00 00 00 00 00 00 00 00 00 00 81 52 04 06 10 81   ...........R....
+|   3360: 5d 81 55 65 20 65 65 20 65 65 65 20 65 20 65 65   ].Ue ee eee e ee
+|   3376: 20 65 65 65 20 65 20 65 65 20 65 65 65 65 20 65    eee e ee eeee e
+|   3392: 65 20 65 65 65 24 a5 20 65 65 20 65 65 65 20 65   e eee$. ee eee e
+|   3408: 24 05 65 20 65 65 65 65 20 65 65 20 65 65 65 20   $.e eeee ee eee 
+|   3424: 65 20 65 65 20 65 65 65 20 65 20 65 65 20 65 65   e ee eee e ee ee
+|   3440: 65 65 20 65 65 20 65 65 65 20 65 20 65 65 10 65   ee ee eee e ee.e
+|   3456: 65 65 20 65 20 65 65 20 65 65 65 65 65 65 20 65   ee e ee eeeeee e
+|   3472: 65 20 65 20 65 20 65 20 65 65 20 65 65 65 20 65   e e e e ee eee e
+|   3488: 1f 20 65 65 66 65 65 20 65 65 20 65 20 65 20 2d   . eefee ee e e -
+| page 5 offset 16384
+|   4064: 00 00 00 00 05 04 d0 00 10 21 21 05 03 03 00 10   .........!!.....
+|   4080: 11 11 05 02 03 00 10 11 10 05 01 03 00 10 09 09   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| end sql022250.txt.db
+}]} {}
+
+do_catchsql_test 70.1 {
+  SELECT snippet(ttt, -1, '', '','','>')FROM ttt('e* NOT ee*e* NOT ee*');
+} {1 {database disk image is malformed}}
+
+do_catchsql_test 70.2 {
+  SELECT snippet(ttt, -1, '', '','',13)FROM ttt('e* NOT ee*e* NOT ee*')
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 71.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 28672 pagesize 4096 filename sql025294.txt.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 00 01 00 40 20 20 00 00 00 00 00 00 00 07   .....@  ........
+|     96: 00 00 00 00 0d 00 00 00 07 0d d2 00 0f c4 0f 6d   ...............m
+|    112: 0f 02 0e ab 0e 4e 0d f6 0d d2 00 00 00 00 00 00   .....N..........
+|   3536: 00 00 22 07 06 17 11 11 01 31 74 61 62 6c 65 74   .........1tablet
+|   3552: 32 74 32 07 43 52 45 41 54 45 20 54 41 42 4c 45   2t2.CREATE TABLE
+|   3568: 20 74 32 28 78 29 56 06 06 17 1f 1f 01 7d 74 61    t2(x)V.......ta
+|   3584: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   blet1_configt1_c
+|   3600: 6f 6e 66 69 67 06 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
+|   3616: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
+|   3632: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
+|   3648: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 05    WITHOUT ROWID[.
+|   3664: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64   ..!!...tablet1_d
+|   3680: 6f 63 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65   ocsizet1_docsize
+|   3696: 05 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
+|   3712: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
+|   3728: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
+|   3744: 59 2c 20 73 7a 20 42 4c 4f 42 29 55 04 06 17 21   Y, sz BLOB)U...!
+|   3760: 21 01 77 74 61 62 6c 65 74 31 5f 63 6f 6e 74 65   !.wtablet1_conte
+|   3776: 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 04 43 52 45   ntt1_content.CRE
+|   3792: 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63 6f   ATE TABLE 't1_co
+|   3808: 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47 45   ntent'(id INTEGE
+|   3824: 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 63   R PRIMARY KEY, c
+|   3840: 30 29 69 03 07 17 19 19 01 81 2d 74 61 62 6c 65   0)i.......-table
+|   3856: 74 31 5f 69 64 78 74 31 5f 69 64 78 03 43 52 45   t1_idxt1_idx.CRE
+|   3872: 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 69 64   ATE TABLE 't1_id
+|   3888: 78 27 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20   x'(segid, term, 
+|   3904: 70 67 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45   pgno, PRIMARY KE
+|   3920: 59 28 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20   Y(segid, term)) 
+|   3936: 57 49 54 48 4f 55 54 20 52 4f 57 49 44 55 02 07   WITHOUT ROWIDU..
+|   3952: 17 1b 1b 01 81 01 74 61 62 6c 65 74 31 5f 64 61   ......tablet1_da
+|   3968: 74 61 74 31 5f 64 61 74 61 02 43 52 45 41 54 45   tat1_data.CREATE
+|   3984: 20 54 41 42 4c 45 20 27 74 31 5f 64 61 74 61 27    TABLE 't1_data'
+|   4000: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   (id INTEGER PRIM
+|   4016: 41 52 58 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42   ARX KEY, block B
+|   4032: 4c 4f 42 29 3a 01 06 17 11 11 08 63 74 61 62 6c   LOB):......ctabl
+|   4048: 65 74 31 74 31 43 52 45 41 54 45 20 56 49 52 54   et1t1CREATE VIRT
+|   4064: 55 41 4c 20 54 41 42 4c 45 20 74 31 20 55 53 49   UAL TABLE t1 USI
+|   4080: 4e 47 20 66 74 73 35 28 63 6f 6e 74 65 6e 74 29   NG fts5(content)
+| page 2 offset 4096
+|      0: 0d 00 00 00 03 0f bd 00 0f e8 0f ef 0f bd 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 00 00 00 00 00 24 84 80   .............$..
+|   4032: 80 80 80 01 03 00 4e 00 00 00 1e 06 30 61 62 61   ......N.....0aba
+|   4048: 60 eb 01 02 02 04 01 66 74 02 02 02 04 04 6e 64   `......ft.....nd
+|   4064: 6f 6e 03 01 f2 04 1a 07 05 01 03 00 10 03 03 0f   on..............
+|   4080: 0a 03 00 24 00 00 00 00 01 01 4b 00 01 01 01 01   ...$......K.....
+| page 3 offset 8192
+|      0: 0a 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
+| page 4 offset 12288
+|      0: 0d 00 00 00 03 0f e0 00 0f f6 0f ec 0f e0 00 00   ................
+|   4064: 0a 03 03 00 1b 61 62 61 6e 64 6f 6e 08 02 03 00   .....abandon....
+|   4080: 17 61 62 61 66 74 08 01 03 00 17 61 62 61 63 6b   .abaft.....aback
+| page 5 offset 16384
+|      0: 0d 00 00 00 03 0f ee 00 0f fa 0f f4 0f ee 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 04 03   ................
+|   4080: 03 00 0e 01 04 02 03 00 0e 01 04 01 03 00 0e 01   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 7 offset 24576
+|      0: 0d 00 00 00 03 0f d6 00 0f f4 0f e1 00 00 00 00   ................
+|   4048: 00 00 00 00 00 00 09 03 02 1b 72 65 62 75 69 6c   ..........rebuil
+|   4064: 64 11 02 02 2b 69 6e 74 65 67 72 69 74 79 2d 63   d...+integrity-c
+|   4080: 68 65 63 6b 0a 01 02 1d 6f 70 74 69 6d 69 7a 65   heck....optimize
+| end sql025294.txt.db
+}]} {}
+
+do_catchsql_test 71.2 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 72.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 24576 pagesize 4096 filename crash-77b86d070d0ac6.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 06   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 06 00 00 00 04   ................
+|     96: 00 00 00 00 0d 00 00 00 06 0d e2 00 0f c4 0f 6a   ...............j
+|    112: 0e fc 0e 9d 0e 3d 0d e2 00 00 00 00 00 00 00 00   .....=..........
+|   3552: 00 00 59 06 06 17 21 21 01 7f 74 61 62 6c 65 74   ..Y...!!..tablet
+|   3568: 74 74 5f 63 6f 6e 66 69 67 74 74 74 5f 63 6f 6e   tt_configttt_con
+|   3584: 66 69 67 06 43 52 45 41 54 45 20 54 41 42 4c 45   fig.CREATE TABLE
+|   3600: 20 27 74 74 74 5f 63 6f 6e 66 69 67 27 28 6b 20    'ttt_config'(k 
+|   3616: 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29 20   PRIMARY KEY, v) 
+|   3632: 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5e 05 07   WITHOUT ROWID^..
+|   3648: 17 23 23 01 81 03 74 61 62 6c 65 74 74 74 5f 64   .##...tablettt_d
+|   3664: 6f 63 73 69 7a 65 74 74 74 5f 64 6f 63 73 69 7a   ocsizettt_docsiz
+|   3680: 65 05 43 52 45 41 54 45 20 54 41 42 4c 45 20 27   e.CREATE TABLE '
+|   3696: 74 74 74 5f 64 6f 63 73 69 7a 65 27 28 69 64 20   ttt_docsize'(id 
+|   3712: 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59 20   INTEGER PRIMARY 
+|   3728: 4b 45 59 2c 20 73 7a 20 42 4c 4f 42 29 5d 04 07   KEY, sz BLOB)]..
+|   3744: 17 23 23 01 81 01 74 61 62 6c 65 74 74 74 5f 63   .##...tablettt_c
+|   3760: 6f 6e 74 65 6e 74 74 74 74 5f 63 6f 6e 74 65 6e   ontentttt_conten
+|   3776: 74 04 43 52 45 41 54 45 20 54 41 42 4c 45 20 27   t.CREATE TABLE '
+|   3792: 74 74 74 5f 63 6f 6e 74 65 6e 74 27 28 69 64 20   ttt_content'(id 
+|   3808: 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59 20   INTEGER PRIMARY 
+|   3824: 4b 45 59 2c 20 63 30 2c 20 63 31 29 6c 03 07 17   KEY, c0, c1)l...
+|   3840: 1b 1b 01 81 2f 74 61 62 6c 65 74 74 74 5f 69 64   ..../tablettt_id
+|   3856: 78 74 74 74 5f 69 64 78 03 43 52 45 41 54 45 20   xttt_idx.CREATE 
+|   3872: 54 41 42 4c 45 20 27 74 74 74 5f 69 64 78 27 28   TABLE 'ttt_idx'(
+|   3888: 73 65 67 69 64 2c 20 74 65 72 6d 2c 20 70 67 6e   segid, term, pgn
+|   3904: 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45 59 28 73   o, PRIMARY KEY(s
+|   3920: 65 67 69 64 2c 20 74 65 72 6d 29 29 20 57 49 54   egid, term)) WIT
+|   3936: 48 4f 55 54 20 52 4f 57 49 44 58 02 07 17 1d 1d   HOUT ROWIDX.....
+|   3952: 01 81 03 74 61 62 6c 65 74 74 74 5f 64 61 74 61   ...tablettt_data
+|   3968: 74 74 74 5f 64 61 74 61 02 43 52 45 41 54 45 20   ttt_data.CREATE 
+|   3984: 54 41 42 4c 45 20 27 74 74 74 5f 64 61 74 61 27   TABLE 'ttt_data'
+|   4000: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   (id INTEGER PRIM
+|   4016: 41 52 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42   ARY KEY, block B
+|   4032: 4c 4f 42 29 3a 01 06 17 13 13 08 5f 74 61 62 6c   LOB):......_tabl
+|   4048: 65 74 74 74 74 74 74 43 52 45 41 54 45 20 56 49   ettttttCREATE VI
+|   4064: 52 54 55 41 4c 20 54 41 42 4c 45 20 74 74 74 20   RTUAL TABLE ttt 
+|   4080: 55 53 49 4e 47 20 66 74 73 35 28 61 2c 20 62 29   USING fts5(a, b)
+| page 2 offset 4096
+|      0: 0d 0f 44 00 05 0e 81 00 0f e7 0e 81 0f af 0f 58   ..D............X
+|     16: 0e 98 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   3712: 00 15 0a 03 00 30 00 00 00 00 01 03 03 00 03 01   .....0..........
+|   3728: 01 01 02 01 01 03 01 01 81 24 8c 80 80 80 80 01   .........$......
+|   3744: 04 00 82 4c 00 00 00 9b 02 30 65 03 1a 02 05 05   ...L.....0e.....
+|   3760: 07 05 01 01 04 03 03 08 03 03 01 2e 02 05 05 07   ................
+|   3776: 05 07 05 07 05 01 01 04 03 03 08 03 03 08 03 03   ................
+|   3792: 08 03 03 02 01 65 03 1e 03 05 05 04 05 05 01 01   .....e..........
+|   3808: 03 06 04 04 06 04 03 01 36 03 05 05 04 05 05 04   ........6.......
+|   3824: 05 05 04 05 05 01 01 03 06 04 04 06 04 04 06 04   ................
+|   3840: 04 06 04 03 03 01 65 03 14 04 05 07 05 05 01 01   ......e.........
+|   3856: 02 08 0a 01 20 04 05 07 05 07 05 07 05 05 01 01   .... ...........
+|   3872: 02 08 0a 09 fa 04 01 65 03 02 0a 01 06 0a 1a 0a   .......e........
+|   3888: 05 01 65 03 06 01 01 0a 01 0a 01 01 0a 0a 0a 04   ..e.............
+|   3904: 2b 31 21 0b 0f ef 00 14 2a 00 00 00 00 01 02 02   +1!.....*.......
+|   3920: 00 02 01 01 01 02 01 01 50 88 80 80 80 80 01 04   ........P.......
+|   3936: 00 81 24 00 00 00 47 02 30 65 02 1a 02 05 05 07   ..$...G.0e......
+|   3952: 05 01 01 04 03 03 08 03 03 02 01 65 02 1e 03 05   ...........e....
+|   3968: 05 04 05 05 01 01 03 06 04 04 06 04 03 03 01 65   ...............e
+|   3984: 02 14 04 05 07 05 05 01 01 02 08 0a 04 01 65 02   ..............e.
+|   4000: 02 0a 05 01 65 02 06 01 01 0a 04 12 14 0f 06 31   ....e..........1
+|   4016: 84 80 80 80 80 01 03 00 68 00 00 00 2b 02 30 65   ........h...+.0e
+|   4032: 01 10 02 05 05 01 01 04 03 9f 02 01 65 01 12 03   ............e...
+|   4048: 05 05 01 01 03 06 04 03 03 01 65 01 0e 14 05 05   ..........e.....
+|   4064: 01 01 02 08 04 0d 0e 06 01 03 00 12 04 4c 4c 00   .............LL.
+|   4080: 00 00 11 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 3 offset 8192
+|      0: 0a 00 00 00 03 0f 00 00 00 00 00 00 00 00 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 00 06 04 01 0c   ................
+|   4080: 01 03 02 06 04 01 0c 01 02 02 05 04 09 0c 01 02   ................
+| page 4 offset 12288
+|      0: 0d 00 00 00 04 00 00 00 00 00 00 00 00 00 00 00   ................
+|   3600: 00 00 00 00 00 00 00 00 00 00 81 52 04 06 00 81   ...........R....
+|   3616: 5d 81 55 65 20 65 65 20 65 65 65 20 65 20 65 65   ].Ue ee eee e ee
+|   3632: 20 65 65 65 20 65 20 65 65 20 65 65 65 65 20 65    eee e ee eeee e
+|   3648: 65 20 65 65 65 20 65 20 65 65 20 65 65 65 20 65   e eee e ee eee e
+|   3664: 20 65 65 20 65 65 55 65 20 65 65 20 65 65 65 20    ee eeUe ee eee 
+|   3680: 65 20 65 65 20 65 65 65 20 65 20 65 65 20 65 65   e ee eee e ee ee
+|   3696: 65 65 20 65 65 20 65 65 65 20 65 20 65 65 20 65   ee ee eee e ee e
+|   3712: 65 65 20 65 20 65 65 20 65 65 65 65 65 65 20 65   ee e ee eeeeee e
+|   3728: 65 20 65 20 65 20 65 20 65 65 20 65 85 65 20 65   e e e e ee e.e e
+|   3744: 65 20 65 65 65 65 65 20 65 65 20 65 20 65 20 65   e eeeee ee e e e
+|   3760: 20 65 65 20 65 65 65 20 65 65 20 65 65 65 65 65    ee eee ee eeeee
+|   3776: 20 65 65 20 65 20 65 20 65 20 65 65 20 65 65 65    ee e e e ee eee
+|   3792: 20 65 65 20 65 65 65 65 65 20 65 65 20 65 20 65    ee eeeee ee e e
+|   3808: 20 65 20 65 65 20 65 65 65 20 65 65 20 65 65 6a    e ee eee ee eej
+|   3824: 03 04 00 75 71 65 20 65 65 20 65 65 65 20 65 20   ...uqe ee eee e 
+|   3840: 65 65 20 65 65 65 20 65 20 65 65 20 65 65 65 65   ee eee e ee eeee
+|   3856: 20 65 65 20 65 65 65 20 65 20 65 65 20 65 65 65    ee eee e ee eee
+|   3872: 20 65 20 65 65 20 65 65 65 65 65 65 20 65 65 20    e ee eeeeee ee 
+|   3888: 65 20 65 20 65 20 65 64 20 65 65 65 20 65 65 20   e e e ed eee ee 
+|   3904: 65 65 65 65 65 20 65 65 20 65 20 65 20 65 10 65   eeeee ee e e e.e
+|   3920: 65 20 65 65 65 10 65 65 20 65 65 6a 02 04 00 75   e eee.ee eej...u
+|   3936: 71 65 20 65 65 20 65 65 65 20 65 20 65 65 20 65   qe ee eee e ee e
+|   3952: 65 65 20 65 20 65 65 20 65 65 65 65 20 65 65 20   ee e ee eeee ee 
+|   3968: 65 65 65 20 65 20 65 65 20 65 65 65 20 65 20 65   eee e ee eee e e
+|   3984: 65 20 65 65 65 66 65 65 20 65 65 20 65 20 65 20   e eeefee ee e e 
+|   4000: 65 88 65 65 20 65 65 65 30 65 65 20 65 65 65 65   e.ee eee0ee eeee
+|   4016: 65 20 65 65 20 65 20 65 20 65 20 65 65 20 65 65   e ee e e e ee ee
+|   4032: 65 20 65 65 20 65 65 37 01 04 00 41 3f 65 20 65   e ee ee7...A?e e
+|   4048: 65 20 65 65 65 20 65 20 65 65 20 65 65 65 20 65   e eee e ee eee e
+|   4064: 20 65 65 20 65 65 65 65 65 65 20 65 65 20 65 20    ee eeeeee ee e 
+|   4080: 65 20 65 20 65 65 20 65 65 65 20 65 65 20 65 65   e e ee eee ee ee
+| page 5 offset 16384
+|      0: 0d 00 00 00 04 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4064: 00 00 00 00 05 04 03 00 10 21 21 05 03 03 00 10   .........!!.....
+|   4080: 11 11 05 02 03 00 10 11 11 05 01 03 00 10 09 09   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| end crash-77b86d070d0ac6.db
+}]} {}
+
+do_catchsql_test 72.1 {
+  INSERT INTO ttt(ttt) VALUES('integrity-check');
+} {1 {database disk image is malformed}}
+
+do_catchsql_test 72.1 {
+  SELECT 1 FROM ttt('e* NOT ee*');
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 73.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 24576 pagesize 4096 filename crash-b02ca2cc4d7dda.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 06   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 06 00 00 00 04   ................
+|     96: 00 00 00 00 0d 00 00 00 06 0d e2 00 0f c4 0f 6a   ...............j
+|    112: 0e fc 0e 9d 0e 3d 0d e2 00 00 00 00 00 00 00 00   .....=..........
+|   3552: 00 00 59 06 06 17 21 21 01 7f 74 61 62 6c 65 74   ..Y...!!..tablet
+|   3568: 74 74 5f 63 6f 6e 66 69 67 74 74 74 5f 63 6f 6e   tt_configttt_con
+|   3584: 66 69 67 06 43 52 45 41 54 45 20 54 41 42 4c 45   fig.CREATE TABLE
+|   3600: 20 27 74 74 74 5f 63 6f 6e 66 69 67 27 28 6b 20    'ttt_config'(k 
+|   3616: 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29 20   PRIMARY KEY, v) 
+|   3632: 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5e 05 07   WITHOUT ROWID^..
+|   3648: 17 23 23 01 81 03 74 61 62 6c 65 74 74 74 5f 64   .##...tablettt_d
+|   3664: 6f 63 73 69 7a 65 74 74 74 5f 64 6f 63 73 69 7a   ocsizettt_docsiz
+|   3680: 65 05 43 52 45 41 54 45 20 54 41 42 4c 45 20 27   e.CREATE TABLE '
+|   3696: 74 74 74 5f 64 6f 63 73 69 7a 65 27 28 69 64 20   ttt_docsize'(id 
+|   3712: 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59 20   INTEGER PRIMARY 
+|   3728: 4b 45 59 2c 20 73 7a 20 42 4c 4f 42 29 5d 04 07   KEY, sz BLOB)]..
+|   3744: 17 23 23 01 81 01 74 61 62 6c 65 74 74 74 5f 63   .##...tablettt_c
+|   3760: 6f 6e 74 65 6e 74 74 74 74 5f 63 6f 6e 74 65 6e   ontentttt_conten
+|   3776: 74 04 43 52 45 41 54 45 20 54 41 42 4c 45 20 27   t.CREATE TABLE '
+|   3792: 74 74 74 5f 63 6f 6e 74 65 6e 74 27 28 69 64 20   ttt_content'(id 
+|   3808: 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59 20   INTEGER PRIMARY 
+|   3824: 4b 45 59 2c 20 63 30 2c 20 63 31 29 6c 03 07 17   KEY, c0, c1)l...
+|   3840: 1b 1b 01 81 2f 74 61 62 6c 65 74 74 74 5f 69 64   ..../tablettt_id
+|   3856: 78 74 74 74 5f 69 64 78 03 43 52 45 41 54 45 20   xttt_idx.CREATE 
+|   3872: 54 41 42 4c 45 20 27 74 74 74 5f 69 64 78 27 28   TABLE 'ttt_idx'(
+|   3888: 73 65 67 69 64 2c 20 74 65 72 6d 2c 20 70 67 6e   segid, term, pgn
+|   3904: 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45 59 28 73   o, PRIMARY KEY(s
+|   3920: 65 67 69 64 2c 20 74 65 72 6d 29 29 20 57 49 54   egid, term)) WIT
+|   3936: 48 4f 55 54 20 52 4f 57 49 44 58 02 07 17 1d 1d   HOUT ROWIDX.....
+|   3952: 01 81 03 74 61 62 6c 65 74 74 74 5f 64 61 74 61   ...tablettt_data
+|   3968: 74 74 74 5f 64 61 74 61 02 43 52 45 41 54 45 20   ttt_data.CREATE 
+|   3984: 54 41 42 4c 45 20 27 74 74 74 5f 64 61 74 61 27   TABLE 'ttt_data'
+|   4000: 28 69 65 20 49 4e 54 45 47 45 52 20 50 52 49 4d   (ie INTEGER PRIM
+|   4016: 41 52 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42   ARY KEY, block B
+|   4032: 4c 4f 42 29 3a 01 06 17 13 13 08 5f 74 61 62 6c   LOB):......_tabl
+|   4048: 65 74 74 74 74 74 74 43 52 45 41 54 45 20 56 49   ettttttCREATE VI
+|   4064: 52 54 55 41 4c 20 54 41 42 4c 45 20 74 74 74 20   RTUAL TABLE ttt 
+|   4080: 55 53 49 4e 47 20 66 74 73 35 28 61 2c 20 62 29   USING fts5(a, b)
+| page 2 offset 4096
+|      0: 0d 0f 44 00 05 0e 81 00 0f e7 0e 81 0f af 0f 58   ..D............X
+|     16: 0e 98 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   3712: 00 15 0a 03 00 30 00 00 00 00 01 03 03 00 03 01   .....0..........
+|   3728: 01 01 02 01 01 03 01 01 81 24 8c 80 80 80 80 01   .........$......
+|   3744: 04 00 82 4c 00 00 00 9b 02 30 65 03 1a 02 05 05   ...L.....0e.....
+|   3760: 07 05 01 01 04 03 03 08 03 03 01 2e 02 05 05 07   ................
+|   3776: 05 07 05 07 05 01 01 04 03 03 08 03 03 08 03 03   ................
+|   3792: 08 03 03 02 01 65 03 1e 03 05 05 04 05 05 01 01   .....e..........
+|   3808: 03 06 04 04 06 04 03 01 36 03 05 05 04 05 05 04   ........6.......
+|   3824: 05 04 f4 04 05 01 01 03 06 04 04 06 04 04 06 04   ................
+|   3840: 04 06 04 db 03 01 65 03 14 04 05 07 05 05 01 01   ......e.........
+|   3856: 02 08 0a 01 20 04 05 07 05 07 05 07 05 05 01 01   .... ...........
+|   3872: 02 08 0a 0a 0a 04 01 65 03 02 0a 01 06 0a 0a 0a   .......e........
+|   3888: 05 01 65 03 06 01 01 0a 01 0a 01 01 0a 0a 0a 04   ..e.............
+|   3904: 2b 31 21 0b 0f ef 00 14 2a 00 00 00 00 01 02 02   +1!.....*.......
+|   3920: 00 02 01 01 01 02 01 01 50 88 80 80 80 80 01 04   ........P.......
+|   3936: 00 81 24 00 00 00 47 02 30 65 02 1a 02 05 05 07   ..$...G.0e......
+|   3952: 05 01 01 04 03 03 08 03 03 02 01 65 02 1e 03 05   ...........e....
+|   3968: 05 04 05 05 01 01 03 06 09 14 06 04 03 03 01 65   ...............e
+|   3984: 02 14 04 05 07 05 05 01 01 02 08 ed 04 01 65 02   ..............e.
+|   4000: 02 0a 05 01 65 02 06 01 01 0a 04 12 14 0f 06 31   ....e..........1
+|   4016: 84 80 80 80 80 01 03 00 68 00 00 00 2b 02 30 65   ........h...+.0e
+|   4032: 01 10 02 05 05 01 01 04 03 03 02 01 55 01 12 03   ............U...
+|   4048: 05 05 01 01 03 06 05 03 03 01 65 01 0e 04 05 05   ..........e.....
+|   4064: 01 01 02 08 04 0d 0e 06 01 03 00 12 04 4c 4c 00   .............LL.
+|   4080: 00 00 11 24 00 00 00 00 01 0f c1 00 01 01 01 01   ...$............
+| page 3 offset 8192
+|      0: 0a 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 00 06 04 01 0c   ................
+|   4080: 01 03 02 06 04 01 0c 01 02 02 05 04 09 0c 01 02   ................
+| page 4 offset 12288
+|      0: 0d 00 00 00 04 00 00 00 00 00 00 00 00 00 00 00   ................
+|   3600: 00 00 00 00 00 00 00 00 00 00 81 52 04 06 00 81   ...........R....
+|   3616: 5d 81 55 65 20 65 65 20 65 65 65 20 65 20 65 65   ].Ue ee eee e ee
+|   3632: 20 65 65 65 20 65 20 65 65 20 65 65 65 65 20 65    eee e ee eeee e
+|   3648: 65 20 65 65 65 20 65 20 65 65 20 65 65 65 20 65   e eee e ee eee e
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+|   3680: 65 20 65 65 20 65 65 65 20 65 20 65 65 20 65 65   e ee eee e ee ee
+|   3696: 65 65 20 65 65 20 65 65 65 20 65 20 65 65 20 65   ee ee eee e ee e
+|   3712: 65 65 20 65 20 65 65 20 65 65 65 65 65 65 20 65   ee e ee eeeeee e
+|   3728: 65 20 65 20 65 20 65 20 65 65 20 65 65 65 20 65   e e e e ee eee e
+|   3744: 65 20 65 65 65 65 65 20 65 65 20 65 20 65 20 65   e eeeee ee e e e
+|   3760: 20 65 65 20 65 62 d5 20 65 65 20 65 65 65 65 65    ee eb. ee eeeee
+|   3776: 20 65 65 20 65 20 65 20 65 20 65 65 20 65 65 65    ee e e e ee eee
+|   3792: 20 65 65 20 65 65 65 65 65 20 65 65 20 65 21 65    ee eeeee ee e!e
+|   3808: 20 65 20 65 65 20 65 65 65 20 65 65 20 65 65 6a    e ee eee ee eej
+|   3824: 03 04 00 75 71 65 20 65 65 10 65 65 65 20 65 20   ...uqe ee.eee e 
+|   3840: 65 65 20 65 65 65 20 65 20 65 65 20 65 65 65 65   ee eee e ee eeee
+|   3856: 20 65 65 20 65 65 65 20 65 20 65 65 20 65 65 65    ee eee e ee eee
+|   3872: 20 65 20 65 65 20 65 65 65 65 65 65 20 65 65 20    e ee eeeeee ee 
+|   3888: 65 20 65 20 65 20 65 65 20 65 65 65 20 62 55 20   e e e ee eee bU 
+|   3904: 65 65 65 65 65 20 65 65 20 65 20 65 20 65 20 65   eeeee ee e e e e
+|   3920: 65 20 65 65 65 20 55 65 20 65 65 6a 02 04 00 75   e eee Ue eej...u
+|   3936: 71 65 20 65 65 20 65 65 65 20 65 10 65 65 20 65   qe ee eee e.ee e
+|   3952: 65 65 20 65 20 65 65 20 65 65 65 65 20 65 65 20   ee e ee eeee ee 
+|   3968: 65 65 65 20 65 20 65 65 20 65 65 65 20 65 20 65   eee e ee eee e e
+|   3984: 65 20 65 65 65 65 65 65 20 65 65 20 65 20 65 20   e eeeeee ee e e 
+|   4000: 65 20 65 65 20 65 65 65 20 65 65 20 65 65 65 65   e ee eee ee eeee
+|   4016: 65 20 65 65 20 65 20 65 20 65 20 65 65 20 65 65   e ee e e e ee ee
+|   4032: 65 20 65 65 21 65 65 37 0a 04 00 41 3f 65 20 65   e ee!ee7...A?e e
+|   4048: 65 20 65 65 65 20 65 20 65 65 20 65 65 65 20 65   e eee e ee eee e
+|   4064: 20 65 65 20 65 65 65 65 65 65 20 65 65 20 65 20    ee eeeeee ee e 
+|   4080: 65 20 65 20 65 65 20 65 65 65 20 65 65 20 65 65   e e ee eee ee ee
+| page 5 offset 16384
+|      0: 0d 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4064: 00 00 00 00 05 04 03 00 10 21 21 05 13 03 00 10   .........!!.....
+|   4080: 11 11 05 02 03 00 10 11 11 05 01 03 00 10 09 09   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| end crash-b02ca2cc4d7dda.db
+}]} {}
+
+do_catchsql_test 73.1 {
+  SELECT snippet(ttt,ttt, NOT 54 ), 
+  * FROM ttt('e* NOT ee*e* NOT ee* NOT ee*e* NOT e*') ;
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 74.0 {
+  sqlite3 db {}
+  sqlite3_fts5_register_matchinfo db
+  db deserialize [decode_hexdb {
+| size 106496 pagesize 4096 filename x.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 01 00 00 00 1a   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 04   ................
+|     80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01   ................
+|     96: 00 2e 4f 78 0d 0f c7 00 07 0d 92 00 0f 8d 0f 36   ..Ox...........6
+|    112: 0e cb 0e 6b 0e 0e 0d b6 0d 92 0d 92 00 00 00 00   ...k............
+|   3472: 00 00 22 08 06 17 11 11 01 31 74 61 62 6c 65 74   .........1tablet
+|   3488: 32 74 32 08 43 52 45 41 54 45 20 54 41 42 4c 45   2t2.CREATE TABLE
+|   3504: 20 74 32 28 78 29 56 07 06 17 1f 1f 01 7d 74 61    t2(x)V.......ta
+|   3520: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   blet1_configt1_c
+|   3536: 6f 6e 66 69 67 07 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
+|   3552: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
+|   3568: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
+|   3584: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 06    WITHOUT ROWID[.
+|   3600: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64   ..!!...tablet1_d
+|   3616: 6f 63 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65   ocsizet1_docsize
+|   3632: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
+|   3648: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
+|   3664: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
+|   3680: 59 2c 20 73 7a 20 42 4c 4f 42 29 5e 05 07 17 21   Y, sz BLOB)^...!
+|   3696: 21 01 81 07 74 61 62 6c 65 74 31 5f 63 6f 6e 74   !...tablet1_cont
+|   3712: 65 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 05 43 52   entt1_content.CR
+|   3728: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63   EATE TABLE 't1_c
+|   3744: 6f 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47   ontent'(id INTEG
+|   3760: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
+|   3776: 63 30 2c 20 63 31 2c d6 63 32 29 69 04 07 17 19   c0, c1,.c2)i....
+|   3792: 19 01 81 2d 74 61 62 6c 65 74 31 5f 69 64 78 74   ...-tablet1_idxt
+|   3808: 31 5f 69 64 78 04 43 52 45 41 54 45 20 54 41 42   1_idx.CREATE TAB
+|   3824: 4c 45 20 27 74 31 5f 69 64 78 27 28 73 65 67 69   LE 't1_idx'(segi
+|   3840: 64 2c 20 74 65 72 6d 2c 20 70 67 6e 6f 2c 20 50   d, term, pgno, P
+|   3856: 52 49 4d 41 52 59 20 4b 45 59 28 73 65 67 69 64   RIMARY KEY(segid
+|   3872: 2c 20 74 65 72 6d 29 29 20 57 49 54 48 4f 55 54   , term)) WITHOUT
+|   3888: 20 52 4f 57 49 44 55 03 07 17 1b 1b 01 81 01 74    ROWIDU........t
+|   3904: 61 62 6c 65 74 31 5f 64 61 74 61 74 31 5f 64 61   ablet1_datat1_da
+|   3920: 74 61 03 43 52 45 41 54 45 20 54 41 42 4c 45 20   ta.CREATE TABLE 
+|   3936: 27 74 31 5f 64 61 74 61 27 28 69 64 20 49 4e 54   't1_data'(id INT
+|   3952: 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59   EGER PRIMARY KEY
+|   3968: 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42 29 38 02 06   , block BLOB)8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 35   LE t1 USING fts5
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 00 00 00 00 00 00   (a,b,c).........
+| page 2 offset 4096
+|      0: 0d 00 00 00 24 0c 0a 00 0f d8 0f af 0f 86 0f 74   ....$..........t
+|     16: 0f 61 0f 4e 0f 2f 0f 0f 0e ef 0e d7 0e be 0e a5   .a.N./..........
+|     32: 0e 8d 0e 74 0e 5b 0e 40 0e 24 0e 08 01 2f 0d d5   ...t.[.@.$.../..
+|     48: 0d bb 0d a0 0d 84 0d 68 0d 4f 0d 35 0d 1b 0c fb   .......h.O.5....
+|     64: 0c da 0c b9 0c 99 0c 78 0c 57 0c 00 00 00 00 00   .......x.W......
+|   3072: 00 00 00 00 00 00 00 00 00 00 18 24 05 00 25 0f   ...........$..%.
+|   3088: 19 54 48 52 45 41 44 53 41 46 45 3d 30 58 42 49   .THREADSAFE=0XBI
+|   3104: 4e 41 52 59 18 23 05 00 25 0f 19 54 48 52 45 41   NARY.#..%..THREA
+|   3120: 44 53 41 46 45 3d 30 58 4e 4f 43 41 53 45 17 8f   DSAFE=0XNOCASE..
+|   3136: 05 00 25 0f 17 54 48 52 45 41 44 53 41 46 45 3d   ..%..THREADSAFE=
+|   3152: 30 58 52 54 52 49 4d 1f 21 05 00 33 0f 19 4f 4d   0XRTRIM.!..3..OM
+|   3168: 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49 4f   IT LOAD EXTENSIO
+|   3184: 4e 58 42 49 4e 41 52 59 1f 20 05 00 33 0f 19 4f   NXBINARY. ..3..O
+|   3200: 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49   MIT LOAD EXTENSI
+|   3216: 4f 4e 58 4e 4f 43 41 53 45 1e 1f 05 00 33 0f 17   ONXNOCASE....3..
+|   3232: 4f 4d 59 54 20 4c 4f 41 44 20 45 58 54 45 4e 53   OMYT LOAD EXTENS
+|   3248: 49 4f 4e 58 52 54 52 49 4d 1f 1e 05 00 33 0f 19   IONXRTRIM....3..
+|   3264: 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30 30   MAX MEMORY=50000
+|   3280: 30 30 30 57 42 49 4e 41 52 59 1f 1d 05 00 33 0f   000WBINARY....3.
+|   3296: 19 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30   .MAX MEMORY=5000
+|   3312: 30 30 30 30 58 4e 4f 43 41 53 45 1e 1c 05 00 33   0000XNOCASE....3
+|   3328: 0f 17 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30   ..MAX MEMORY=500
+|   3344: 30 30 30 30 30 58 52 54 52 49 4d 18 1b 05 00 25   00000XRTRIM....%
+|   3360: 0f 19 45 4e 41 42 4c 45 20 52 54 52 45 45 58 42   ..ENABLE RTREEXB
+|   3376: 49 4e 41 52 59 18 1a 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3392: 4c 45 20 52 54 52 45 45 59 4e 4f 43 41 53 45 17   LE RTREEYNOCASE.
+|   3408: 19 05 00 25 0f 17 45 4e 41 42 4c 45 20 52 54 52   ...%..ENABLE RTR
+|   3424: 45 45 58 52 54 52 49 4d 1a 18 05 00 29 0f 19 45   EEXRTRIM....)..E
+|   3440: 4e 41 42 4c 45 20 4d 45 4d 53 59 53 35 58 42 49   NABLE MEMSYS5XBI
+|   3456: 4e 41 52 59 1a 17 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3472: 45 20 4d 45 4d 53 59 53 35 58 4e 4f 43 41 53 45   E MEMSYS5XNOCASE
+|   3488: 19 16 05 00 29 0f 17 45 4e 41 42 4c 45 20 4d 45   ....)..ENABLE ME
+|   3504: 4d 53 59 53 35 58 52 54 52 49 4d 18 15 05 00 25   MSYS5XRTRIM....%
+|   3520: 0f 19 45 4e 41 42 4c 45 20 4a 53 4f 4e 31 58 42   ..ENABLE JSON1XB
+|   3536: 49 4e 41 52 59 18 14 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3552: 4c 45 20 4a 53 4f 4e 31 58 4e 4f 43 41 53 45 17   LE JSON1XNOCASE.
+|   3568: 13 05 00 25 0f 17 45 4e 41 42 4c 45 20 4a 53 4f   ...%..ENABLE JSO
+|   3584: 4e 31 58 52 54 52 49 4d 1a 12 05 00 29 0f 19 45   N1XRTRIM....)..E
+|   3600: 4e 41 42 4c 45 20 47 45 4f 50 4f 4c 59 58 42 49   NABLE GEOPOLYXBI
+|   3616: 4e 41 52 59 1a 11 05 00 29 0f 19 45 4f 41 42 4c   NARY....)..EOABL
+|   3632: 45 20 47 45 4f 50 4f 4c 59 58 4e 4f 43 51 53 45   E GEOPOLYXNOCQSE
+|   3648: 19 10 05 00 29 0f 17 45 4e 41 42 4c 45 20 47 45   ....)..ENABLE GE
+|   3664: 4f 50 4f 4c 59 58 52 54 52 49 4d 17 0f 05 00 23   OPOLYXRTRIM....#
+|   3680: 0f 19 45 4e 41 42 4c 45 20 46 54 53 35 58 42 49   ..ENABLE FTS5XBI
+|   3696: 4e 41 52 59 17 0e 05 00 23 0f 19 45 4e 41 42 4c   NARY....#..ENABL
+|   3712: 45 20 46 54 53 35 58 4e 4f 43 41 53 45 16 1d 05   E FTS5XNOCASE...
+|   3728: 00 23 0f a4 45 4e 41 42 4c 45 20 46 54 53 35 58   .#..ENABLE FTS5X
+|   3744: 52 54 52 49 4d 17 0c 05 00 23 0f 19 45 4e 41 42   RTRIM....#..ENAB
+|   3760: 4c 45 20 46 55 53 34 58 42 49 4e 41 52 59 17 0b   LE FUS4XBINARY..
+|   3776: 05 00 23 0f 19 45 4e 41 42 4c 45 20 46 54 53 34   ..#..ENABLE FTS4
+|   3792: 58 4e 4f 43 41 53 45 16 0a 05 00 23 0f 17 45 4e   XNOCASE....#..EN
+|   3808: 41 42 4c 45 20 46 54 53 34 58 52 54 52 49 4d 1e   ABLE FTS4XRTRIM.
+|   3824: 09 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3840: 54 41 54 20 56 54 41 42 58 42 49 4e 41 52 59 1e   TAT VTABXBINARY.
+|   3856: 08 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3872: 54 41 54 20 56 54 41 42 58 4e 4f 43 41 53 45 1d   TAT VTABXNOCASE.
+|   3888: 07 05 00 31 0f 17 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3904: 54 41 54 20 56 54 41 42 58 52 54 52 49 4d 11 06   TAT VTABXRTRIM..
+|   3920: 05 00 17 0f 19 44 45 42 55 47 58 42 49 4e 41 52   .....DEBUGXBINAR
+|   3936: 59 11 05 05 00 17 0f 19 44 45 42 55 47 58 4e 4f   Y.......DEBUGXNO
+|   3952: 43 41 53 45 10 04 05 00 17 0f 17 44 45 42 55 47   CASE.......DEBUG
+|   3968: 58 52 54 52 49 4d 27 03 05 00 43 0f 19 43 4f 4d   XRTRIM'...C..COM
+|   3984: 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e 30 20   PILER=gcc-5.4.0 
+|   4000: 32 30 31 36 30 36 30 39 58 42 49 4e 41 52 59 27   20160609XBINARY'
+|   4016: 02 05 00 43 0f 19 43 4f 4d 50 49 4c 45 52 3d 67   ...C..COMPILER=g
+|   4032: 63 63 2d 35 2e 34 2e 30 20 32 30 31 36 30 36 30   cc-5.4.0 2016060
+|   4048: 39 58 4e 4f 43 41 53 45 26 01 05 00 43 0f 17 43   9XNOCASE&...C..C
+|   4064: 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e   OMPILER=gcc-5.4.
+|   4080: 30 20 32 30 31 36 30 36 30 39 58 52 54 53 49 4d   0 20160609XRTSIM
+| page 3 offset 8192
+|      0: 05 00 00 00 07 0f ba 00 00 00 00 1a 0f f6 0f ec   ................
+|     16: 0f e2 0f d8 0f ce 0f c4 0f ba 00 00 00 00 00 00   ................
+|   3200: 00 00 00 00 00 00 00 00 00 00 08 01 03 00 16 2e   ................
+|   3216: b1 7d 24 24 86 4a 84 80 80 80 80 01 04 00 8d 18   ..$$.J..........
+|   3232: 00 00 03 2b 02 30 30 01 02 06 01 02 06 01 02 06   ...+.00.........
+|   3248: 1f 02 03 01 02 03 01 02 03 01 08 32 30 31 36 30   ...........20160
+|   3264: 36 30 39 01 02 07 01 02 07 01 02 07 01 01 34 00   609...........4.
+|   3280: 02 05 01 02 05 01 02 05 01 01 35 01 02 04 01 02   ..........5.....
+|   3296: 04 01 02 04 02 07 30 30 30 30 30 30 30 1c 02 3d   ......0000000..=
+|   3312: 01 02 04 01 02 04 01 06 62 69 6e 61 72 79 03 06   ........binary..
+|   3328: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3344: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3360: 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02   ................
+|   3376: 03 06 01 02 02 03 06 01 02 02 01 08 63 6f 6d 70   ............comp
+|   3392: 69 6c 65 72 01 02 02 01 02 02 01 02 02 01 06 64   iler...........d
+|   3408: 62 73 74 61 74 07 02 03 01 02 03 01 02 03 02 04   bstat...........
+|   3424: 65 62 75 67 04 02 02 01 02 02 01 02 02 01 07 65   ebug...........e
+|   3440: 6e 61 62 6c 65 07 02 02 01 02 02 01 d3 02 01 02   nable...........
+|   3456: 02 01 02 02 02 02 02 01 02 02 01 02 02 01 02 02   ................
+|   3472: 01 02 02 01 02 02 01 02 02 01 02 02 01 02 02 01   ................
+|   3488: 02 02 01 02 02 01 02 02 01 02 02 01 02 02 01 02   ................
+|   3504: 02 01 02 02 02 08 78 74 65 6e 73 69 6f 6e 1f 02   ......xtension..
+|   3520: 04 01 02 04 01 02 04 01 04 66 74 73 34 0a 02 03   .........fts4...
+|   3536: 01 02 03 01 02 03 04 01 35 0d 02 03 01 02 03 01   ........5.......
+|   3552: 02 03 01 03 67 63 63 01 02 54 01 02 03 01 02 03   ....gcc..T......
+|   3568: 02 06 65 6f 70 6f 6c 79 10 02 03 01 02 03 01 02   ..eopoly........
+|   3584: 03 01 05 6a 73 6f 6e 31 13 02 03 01 02 03 01 02   ...json1........
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+|   3984: 0a 08 08 09 07 08 07 0a 08 09 08 0a 08 08 08 08   ................
+|   4000: 09 08 08 07 08 0b 0a 08 09 09 08 08 08 08 08 09   ................
+|   4016: 09 09 08 09 08 0b 09 08 08 08 08 0a 08 07 09 06   ................
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+|   4064: 09 0a 08 08 09 09 09 0c 09 09 0b 0b 09 08 09 0a   ................
+|   4080: 0b 0b 08 0a 08 08 0b 09 09 0a 0a 09 0a 08 09 09   ................
+| page 26 offset 102400
+|      0: 0d 00 00 00 01 0e a7 00 0e a7 00 00 00 00 00 00   ................
+|   3744: 00 00 00 00 00 00 00 82 51 88 80 80 80 80 07 04   ........Q.......
+|   3760: 00 85 26 00 00 01 2d 05 30 f4 a3 b5 8c 0a 02 1b   ..&...-.0.......
+|   3776: 02 03 b4 91 a9 02 04 82 1b 02 04 b7 b5 89 67 06   ..............g.
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+|   3872: 03 b1 9c bb 08 02 67 02 03 b5 be 81 07 04 83 79   ......g........y
+|   3888: 02 04 bf 81 9d 71 07 04 81 7c 01 04 f6 83 ab 80   .....q...|......
+|   3904: 01 04 81 2a 02 04 89 8c a8 61 01 04 82 30 02 03   ...*.....a...0..
+|   3920: 8e ae 81 07 04 84 05 02 04 8f bd b0 6a 09 04 82   ............j...
+|   3936: 1e 02 04 92 95 9c 6c 07 04 82 64 03 02 b4 9f 09   ......l...d.....
+|   3952: 04 83 65 02 04 9a a9 9f 34 06 04 83 70 02 03 a4   ..e.....4...p...
+|   3968: ad af 01 02 02 02 03 b4 9a 90 07 04 83 5e 01 04   .............^..
+|   3984: f7 87 a5 9d 04 04 84 62 02 03 89 83 8e 0a 04 82   .......b........
+|   4000: 2e 02 03 98 bd 8e 01 04 84 06 02 03 99 a7 8e 02   ................
+|   4016: 04 83 7d 02 03 a0 a1 bb 01 04 81 4e 02 04 a8 86   ...........N....
+|   4032: b8 64 0a 02 34 02 03 b2 9a 9e 05 04 83 16 02 04   .d..4...........
+|   4048: b4 a7 93 36 06 04 83 7d 03 02 ba 9c 02 04 83 07   ...6............
+|   4064: 04 09 09 0a 0a 0c 0b 08 09 09 08 09 08 09 0a 0a   ................
+|   4080: 0a 09 0a 0a 08 0a 08 09 0a 09 09 09 09 09 09 0a   ................
+| end x.db
+}]} {}
+
+do_catchsql_test 74.0.5 {
+  SELECT matchinfo(1,2);
+} {1 {unable to use function matchinfo in the requested context}}
+
+do_catchsql_test 74.1 {
+  SELECT rowid, quote(matchinfo(t1,'pxyb<s')) FROM t1 WHERE t1 MATCH 'e*';
+} {1 {unrecognized matchinfo flag: <}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 75.0 {
+  sqlite3 db {}
+  sqlite3_fts5_register_matchinfo db
+  db deserialize [decode_hexdb {
+| size 32768 pagesize 4096 filename crash-033d665d5caa8d.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 00   .....@  ........
+|     96: 00 00 00 00 0d 0f c7 00 07 0d 92 00 0f 8d 0f 36   ...............6
+|    112: 0e cb 0e 6b 0e 0e 0d b6 0d 92 00 00 00 00 00 00   ...k............
+|   3472: 00 00 22 08 06 17 11 11 01 31 74 61 62 6c 65 74   .........1tablet
+|   3488: 32 74 32 08 43 52 45 41 54 45 20 54 41 42 4c 45   2t2.CREATE TABLE
+|   3504: 20 74 32 28 78 29 56 07 06 17 1f 1f 01 7d 74 61    t2(x)V.......ta
+|   3520: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   blet1_configt1_c
+|   3536: 6f 6e 66 69 67 07 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
+|   3552: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
+|   3568: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
+|   3584: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 06    WITHOUT ROWID[.
+|   3600: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64   ..!!...tablet1_d
+|   3616: 6f 63 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65   ocsizet1_docsize
+|   3632: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
+|   3648: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
+|   3664: 54 45 47 45 52 20 50 52 49 4d 54 52 59 20 4b 45   TEGER PRIMTRY KE
+|   3680: 59 2c 20 73 7a 20 42 4c 4f 42 29 5e 05 07 17 21   Y, sz BLOB)^...!
+|   3696: 21 01 81 07 74 61 62 6c 65 74 31 5f 63 6f 6e 74   !...tablet1_cont
+|   3712: 65 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 05 43 52   entt1_content.CR
+|   3728: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63   EATE TABLE 't1_c
+|   3744: 6f 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47   ontent'(id INTEG
+|   3760: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
+|   3776: 63 30 2c 20 63 31 2c d6 63 32 29 69 04 07 17 19   c0, c1,.c2)i....
+|   3792: 19 01 81 2d 74 61 62 6c 65 74 31 5f 69 64 78 74   ...-tablet1_idxt
+|   3808: 31 5f 69 64 78 04 43 52 45 41 54 45 20 54 41 42   1_idx.CREATE TAB
+|   3824: 4c 45 20 27 74 31 5f 69 64 78 27 28 73 65 67 69   LE 't1_idx'(segi
+|   3840: 64 2c 20 74 65 72 6d 2c 20 70 67 6e 6f 2c 20 50   d, term, pgno, P
+|   3856: 52 49 4d 41 52 59 20 4b 45 59 28 73 65 67 69 64   RIMARY KEY(segid
+|   3872: 2c 20 74 65 72 6d 29 29 20 57 49 54 48 4f 55 54   , term)) WITHOUT
+|   3888: 20 52 4f 57 49 44 55 03 07 17 1b 1b 01 81 01 74    ROWIDU........t
+|   3904: 61 62 6c 65 74 31 5f 64 61 74 61 74 31 5f 64 61   ablet1_datat1_da
+|   3920: 74 61 03 43 52 45 41 54 45 20 54 41 42 4c 45 20   ta.CREATE TABLE 
+|   3936: 27 74 31 5f 64 61 74 61 27 28 69 64 20 49 4e 54   't1_data'(id INT
+|   3952: 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59   EGER PRIMARY KEY
+|   3968: 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42 29 38 02 06   , block BLOB)8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 35   LE t1 USING fts5
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 00 00 00 00 00 00   (a,b,c).........
+| page 3 offset 8192
+|      0: 0d 00 00 00 03 0c 93 ff 0f e6 0f ef 0c 94 00 00   ................
+|   3216: 00 00 00 00 86 4a 84 80 80 80 80 01 04 00 8d 18   .....J..........
+|   3232: 00 00 03 2b 02 30 30 01 02 06 01 02 06 01 02 06   ...+.00.........
+|   3248: 1f 02 03 01 02 03 01 02 03 01 08 32 31 31 36 30   ...........21160
+|   3264: 36 30 39 01 02 07 01 02 07 01 02 07 01 01 33 f1   609...........3.
+|   3280: 02 05 01 02 05 01 02 05 01 01 35 01 02 03 01 02   ..........5.....
+|   3296: 04 01 02 04 02 07 30 30 30 30 30 30 30 1c 02 3d   ......0000000..=
+|   3312: 01 02 04 01 02 04 01 06 62 69 6e 61 72 79 03 06   ........binary..
+|   3328: 01 02 02 03 06 01 01 f2 03 06 4e 02 02 03 06 01   ..........N.....
+|   3344: 02 02 03 05 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3360: 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02   ................
+|   3376: 03 06 01 02 02 03 06 01 02 02 01 08 63 6f 6d 70   ............comp
+|   3392: 69 6c 65 72 01 02 02 01 02 02 01 02 02 01 06 64   iler...........d
+|   3408: 62 73 74 61 74 07 02 03 01 02 13 01 02 03 02 04   bstat...........
+|   3424: 65 62 75 67 04 02 02 01 02 02 01 02 02 01 07 65   ebug...........e
+|   3440: 6e 61 62 6c 65 07 02 02 01 02 02 01 02 02 01 02   nable...........
+|   3456: 02 01 02 02 01 02 02 01 02 02 01 02 02 01 02 02   ................
+|   3472: 01 02 02 01 02 02 01 02 01 f1 02 02 01 02 02 01   ................
+|   3488: 02 02 01 02 02 01 02 02 01 02 02 01 02 02 01 02   ................
+|   3504: 02 01 02 02 02 08 78 74 65 6e 73 69 6f 6e 1f 02   ......xtension..
+|   3520: 04 01 02 04 01 02 04 01 04 66 74 73 34 0a 02 03   .........fts4...
+|   3536: 01 02 03 01 02 03 04 01 25 0d 02 03 01 02 03 01   ........%.......
+|   3552: 02 03 01 03 67 63 63 01 02 03 01 02 03 01 02 03   ....gcc.........
+|   3568: 02 06 65 6f 70 6f 6c 79 0f f2 03 01 02 03 01 02   ..eopoly........
+|   3584: 03 01 05 6a 73 6f 6e 31 13 02 03 01 02 03 01 02   ...json1........
+|   3600: 03 01 04 6c 6f 61 64 1f 02 03 01 02 03 01 02 03   ...load.........
+|   3616: 00 03 6d 61 78 1c 02 02 01 02 02 01 02 02 02 05   ..max...........
+|   3632: 65 6d 6f 72 79 1c 02 03 01 02 03 01 02 03 04 04   emory...........
+|   3648: 73 79 73 35 16 02 03 01 02 03 01 02 03 01 06 6e   sys5...........n
+|   3664: 6f 63 61 73 65 02 06 01 02 02 13 06 00 f2 02 03   ocase...........
+|   3680: 06 01 02 02 13 06 01 02 02 03 06 01 02 02 03 06   ................
+|   3696: 01 02 02 03 06 01 02 02 03 06 02 02 02 03 06 01   ................
+|   3712: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3728: 02 01 04 6f 6d 69 74 1f 02 02 01 02 02 01 02 b2   ...omit.........
+|   3744: 01 0a 22 74 72 65 65 19 02 03 01 02 03 01 02 03   ...tree.........
+|   3760: 04 02 69 6c f1 06 01 02 02 03 06 01 02 02 03 06   ..il............
+|   3776: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3792: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3808: 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02   ................
+|   3824: 01 0a 74 68 72 65 61 64 73 61 66 65 22 02 02 01   ..threadsafe....
+|   3840: 02 02 01 02 02 01 04 76 74 61 62 07 02 04 01 02   .......vtab.....
+|   3856: 04 01 02 04 01 01 78 01 06 01 01 02 01 06 01 01   ......x.........
+|   3872: 02 01 06 01 01 02 04 36 01 01 02 01 06 01 01 02   .......6........
+|   3888: 01 06 01 11 02 01 06 01 01 02 01 06 01 01 02 01   ................
+|   3904: 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06   ................
+|   3920: 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01   ................
+|   3936: 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01   ................
+|   3952: 02 01 06 01 01 01 f1 06 01 01 02 ad 06 01 01 02   ................
+|   3968: 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01   ................
+|   3984: 06 01 01 01 01 06 01 01 02 01 06 01 01 02 01 06   ................
+|   4000: 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01   ................
+|   4016: 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01   ................
+|   4032: 02 01 06 01 01 02 01 06 01 01 02 04 15 13 0c 0c   ................
+|   4048: 12 44 13 11 0f 47 13 0e fc 0e 11 10 0f 0e 10 0f   .D...G..........
+|   4064: 44 0f 10 40 15 0f 07 01 03 00 14 24 5a 24 24 0f   D..@.......$Z$$.
+|   4080: 0a 03 00 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 4 offset 12288
+|      0: 0a 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
+| page 5 offset 16384
+|      0: 0d 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   3072: 00 00 00 00 00 00 00 00 00 00 18 24 05 00 25 0f   ...........$..%.
+|   3088: 19 54 48 52 45 41 44 53 41 46 45 3d 30 58 42 49   .THREADSAFE=0XBI
+|   3104: 4e 41 52 59 18 23 05 00 25 0f 19 54 48 52 45 41   NARY.#..%..THREA
+|   3120: 44 53 41 46 45 3d 30 58 4e 4f 43 41 53 45 17 8f   DSAFE=0XNOCASE..
+|   3136: 05 00 25 0f 17 54 48 52 45 41 44 53 41 46 45 3d   ..%..THREADSAFE=
+|   3152: 30 58 52 54 52 49 4d 1f 21 05 00 33 0f 19 45 ed   0XRTRIM.!..3..E.
+|   3168: 49 54 20 4c 4f 41 44 21 45 58 54 45 4e 53 49 4f   IT LOAD!EXTENSIO
+|   3184: 4e 58 42 49 4e 41 52 59 1f 20 05 00 33 0f 19 4f   NXBINARY. ..3..O
+|   3200: 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 5a 29   MIT LOAD EXTENZ)
+|   3216: 4f 4e 58 4e 4f 43 41 53 45 1e 1f 05 00 33 0f 17   ONXNOCASE....3..
+|   3232: 4f 4d 59 54 20 4c 4f 41 44 20 45 58 54 45 4e 53   OMYT LOAD EXTENS
+|   3248: 49 4f 4e 58 52 54 56 a9 4d 1f 1e 05 00 33 0f 19   IONXRTV.M....3..
+|   3264: 4d 41 58 20 4d 45 4d 4f 52 59 3d 25 30 30 30 30   MAX MEMORY=%0000
+|   3280: 30 30 30 57 42 49 4e 31 52 59 1f 1d 05 00 33 0f   000WBIN1RY....3.
+|   3296: 19 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30   .MAX MEMORY=5000
+|   3312: 30 30 30 30 58 4e 4f 43 41 53 45 1e 1c 05 00 32   0000XNOCASE....2
+|   3328: 0e 17 4e 41 58 20 4d 45 4d 4f 52 59 2d 35 30 30   ..NAX MEMORY-500
+|   3344: 30 30 30 30 30 58 52 54 52 49 4d 18 1b 05 00 25   00000XRTRIM....%
+|   3360: 0f 19 45 4e 41 42 4c 45 20 52 54 52 45 45 58 42   ..ENABLE RTREEXB
+|   3376: 49 4e 41 52 59 18 1a 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3392: 4c 45 20 52 54 52 45 45 59 4e 4f 43 41 53 45 17   LE RTREEYNOCASE.
+|   3408: 19 66 00 25 0f 17 45 4e 41 42 4c 45 20 52 54 52   .f.%..ENABLE RTR
+|   3424: 45 45 58 52 54 52 49 4d 1a 18 05 00 29 0f 19 45   EEXRTRIM....)..E
+|   3440: 4e 41 42 4c 45 20 4d 45 4d 53 59 53 35 58 42 49   NABLE MEMSYS5XBI
+|   3456: 4e 41 52 59 1a 17 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3472: 45 20 4d 45 4d 53 59 53 35 58 4e 4f 43 41 53 45   E MEMSYS5XNOCASE
+|   3488: 19 16 05 00 29 0f 17 45 4e 41 42 4c 45 20 4d 45   ....)..ENABLE ME
+|   3504: 4d 53 59 76 35 58 52 54 52 49 4d 18 15 05 10 25   MSYv5XRTRIM....%
+|   3520: 0f 19 45 4e 40 42 4c 45 20 4a 53 4f 4e 31 58 42   ..EN@BLE JSON1XB
+|   3536: 49 4e 41 52 59 18 14 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3552: 4c 45 20 4a 53 4f 4e 32 58 4e 4f 43 41 53 45 17   LE JSON2XNOCASE.
+|   3568: 13 05 00 25 0f 17 45 4e 41 42 4c 45 20 4a 53 4f   ...%..ENABLE JSO
+|   3584: 4e 31 58 52 54 52 49 4d 1a 12 05 00 29 0f 19 45   N1XRTRIM....)..E
+|   3600: 4e 41 42 4c 45 20 47 45 4f 50 4f 4c 59 58 42 49   NABLE GEOPOLYXBI
+|   3616: 4e 41 52 59 1a 11 05 00 29 0f 19 45 5f 81 42 4c   NARY....)..E_.BL
+|   3632: 45 20 47 45 4f 50 4f 4c 59 58 4e 4f 43 51 53 45   E GEOPOLYXNOCQSE
+|   3648: 19 10 05 00 29 0f 17 45 4e 41 42 4c 45 20 47 45   ....)..ENABLE GE
+|   3664: 4f 50 4f 4c 59 58 52 54 52 49 4d 17 0f 05 00 23   OPOLYXRTRIM....#
+|   3680: 0f 1a 45 4e 41 42 4c 45 20 56 54 43 35 58 42 49   ..ENABLE VTC5XBI
+|   3696: 4e 41 52 59 17 0e 05 00 23 0f 19 45 4e 41 42 4c   NARY....#..ENABL
+|   3712: 45 20 46 54 53 35 48 4e 4f 43 41 53 45 16 1d 05   E FTS5HNOCASE...
+|   3728: 00 23 0f a4 45 4e 41 42 4c 45 20 46 54 53 35 58   .#..ENABLE FTS5X
+|   3744: 52 54 52 49 4d b7 0c 05 00 23 0f 19 45 4e 41 42   RTRIM....#..ENAB
+|   3760: 4c 45 20 46 55 53 34 58 42 49 4e 41 52 59 17 0b   LE FUS4XBINARY..
+|   3776: 05 00 23 0f 19 45 4e 41 42 4c 45 20 46 54 53 34   ..#..ENABLE FTS4
+|   3792: 57 4e 4f 43 41 53 45 16 0a 05 00 21 7f 17 45 4e   WNOCASE....!..EN
+|   3808: 41 42 4c 45 20 46 54 53 34 05 52 54 52 49 4d 1e   ABLE FTS4.RTRIM.
+|   3824: 09 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3840: 54 41 54 20 56 54 41 42 58 42 49 4e 41 52 59 1e   TAT VTABXBINARY.
+|   3856: 08 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3872: 54 41 54 20 56 54 41 42 58 4e 4f 43 41 53 45 1d   TAT VTABXNOCASE.
+|   3888: 07 05 00 31 0f 17 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3904: 54 41 54 20 56 54 41 42 58 52 54 52 49 4d 11 06   TAT VTABXRTRIM..
+|   3920: 05 00 17 0f 19 44 45 42 55 47 58 42 49 4e 41 52   .....DEBUGXBINAR
+|   3936: 59 11 05 05 00 17 0f 19 44 45 42 55 47 58 4e 4f   Y.......DEBUGXNO
+|   3952: 43 41 53 45 10 04 05 00 17 0f 17 44 45 42 55 47   CASE.......DEBUG
+|   3968: 58 52 54 52 49 4d 27 03 05 00 43 0f 19 43 4f 4d   XRTRIM'...C..COM
+|   3984: 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e 30 20   PILER=gcc-5.4.0 
+|   4000: 32 30 31 36 30 36 30 39 58 42 49 4e 41 52 59 27   20160609XBINARY'
+|   4016: 02 05 00 43 0f 19 43 4f 4d 50 49 4c 45 52 3f 87   ...C..COMPILER?.
+|   4032: 63 63 2d 35 2e 34 2e 30 20 32 30 31 36 30 36 30   cc-5.4.0 2016060
+|   4048: 39 58 4e 4f 43 41 53 45 26 01 05 00 43 0f 17 00   9XNOCASE&...C...
+| page 6 offset 20480
+|   3808: 06 24 03 00 12 02 01 01 06 23 03 00 12 02 01 01   .$.......#......
+|   3824: 06 22 03 01 12 02 01 01 06 21 03 00 12 03 01 01   .........!......
+|   3840: 06 20 03 00 12 03 01 01 06 1f 03 00 12 03 02 01   . ..............
+|   3856: 06 1e 03 00 12 03 01 01 06 1d 03 00 12 03 01 01   ................
+|   3872: 06 1c 03 00 12 03 01 01 06 1b 03 00 12 02 01 01   ................
+|   3888: 06 1a 03 00 12 02 01 01 06 19 03 00 12 02 01 01   ................
+|   3904: 06 18 03 00 12 02 01 01 06 17 03 00 12 02 01 01   ................
+|   3920: 06 16 03 00 12 02 01 01 06 15 03 00 12 02 01 01   ................
+|   3936: 06 14 03 00 12 02 01 01 06 13 03 00 12 02 01 01   ................
+|   3952: 06 12 03 00 12 02 01 01 06 11 03 00 12 02 01 01   ................
+|   3968: 06 00 03 00 12 02 01 01 06 0f 03 00 12 02 01 01   ................
+|   3984: 06 0e 03 00 12 02 01 01 06 0d 03 00 12 02 01 01   ................
+|   4000: 06 0c 03 00 12 02 01 01 06 0b 03 10 12 02 01 01   ................
+|   4016: 06 0a 03 00 12 02 01 01 06 09 03 01 12 03 01 01   ................
+|   4032: 06 08 03 00 12 03 01 01 06 07 03 00 12 03 01 01   ................
+|   4048: 07 06 03 00 12 01 01 01 06 05 03 00 12 01 01 01   ................
+|   4064: 06 04 03 00 12 01 01 01 06 03 03 00 12 06 01 01   ................
+|   4080: 06 02 03 00 12 06 01 01 06 01 03 00 12 06 01 01   ................
+| page 7 offset 24576
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 8 offset 28672
+|   4048: 00 00 00 00 00 00 5d 03 02 2b 69 6e 74 00 00 00   ......]..+int...
+| end crash-033d665d5caa8d.db
+}]} {}
+
+do_catchsql_test 75.1 {
+  SELECT rowid, quote(matchinfo(t1,'pcxybs')) FROM t1 WHERE t1 MATCH 'e*';
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 76.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 40960 pagesize 4096 filename crash-03b68c01d30713.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 0a   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 0d 00 00 00 04   ................
+|     96: 00 00 00 00 0d 00 00 00 0d 0b 6e 00 0f a3 0f 4c   ..........n....L
+|    112: 0e e1 0e 81 0e 24 0d cc 0d 72 0d 1b 0c b0 0c 50   .....$...r.....P
+|    128: 0b f8 0b b3 0b 6e 01 00 00 00 00 00 00 00 00 00   .....n..........
+|   2912: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 43 0d   ..............C.
+|   2928: 06 17 11 11 08 75 74 61 62 6c 65 74 34 74 34 43   .....utablet4t4C
+|   2944: 52 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41   REATE VIRTUAL TA
+|   2960: 42 4c 45 20 74 34 20 55 53 49 4e 47 20 66 74 73   BLE t4 USING fts
+|   2976: 35 76 6f 63 61 62 28 27 74 32 27 2c 20 27 72 6f   5vocab('t2', 'ro
+|   2992: 77 27 29 43 0c 06 17 11 11 08 75 74 61 62 6c 65   w')C......utable
+|   3008: 74 33 74 33 43 52 45 41 54 45 20 56 49 52 54 55   t3t3CREATE VIRTU
+|   3024: 41 4c 20 54 41 42 4c 45 20 74 33 20 55 53 49 4e   AL TABLE t3 USIN
+|   3040: 47 20 66 74 73 35 76 6f 63 61 62 28 27 74 31 27   G fts5vocab('t1'
+|   3056: 2c 20 27 72 6f 77 27 29 56 0b 06 17 1f 1f 01 7d   , 'row')V.......
+|   3072: 74 61 62 6c 65 74 32 5f 63 6f 6e 66 69 67 74 32   tablet2_configt2
+|   3088: 5f 63 6f 6e 66 69 67 0a 43 52 45 41 54 45 20 54   _config.CREATE T
+|   3104: 41 42 4c 45 20 27 74 32 5f 63 6f 6e 66 69 67 27   ABLE 't2_config'
+|   3120: 28 6b 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   (k PRIMARY KEY, 
+|   3136: 76 29 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44   v) WITHOUT ROWID
+|   3152: 5e 0a 07 17 21 21 01 81 07 74 61 62 6c 65 74 32   ^...!!...tablet2
+|   3168: 5f 63 6f 6e 74 65 6e 74 74 32 5f 63 6f 6e 74 65   _contentt2_conte
+|   3184: 6e 74 09 43 52 45 41 54 45 20 54 41 42 4c 45 20   nt.CREATE TABLE 
+|   3200: 27 74 32 5f 63 6f 6e 74 65 6e 74 27 28 69 64 20   't2_content'(id 
+|   3216: 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59 20   INTEGER PRIMARY 
+|   3232: 4b 45 59 2c 20 63 30 2c 20 63 31 2c 20 63 32 29   KEY, c0, c1, c2)
+|   3248: 69 09 07 17 19 19 01 81 2d 74 61 62 6c 65 74 32   i.......-tablet2
+|   3264: 5f 69 64 78 74 32 5f 69 64 78 08 43 52 45 41 54   _idxt2_idx.CREAT
+|   3280: 45 20 54 41 42 4c 45 20 27 74 32 5f 69 64 78 27   E TABLE 't2_idx'
+|   3296: 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20 70 67   (segid, term, pg
+|   3312: 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45 59 28   no, PRIMARY KEY(
+|   3328: 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20 57 49   segid, term)) WI
+|   3344: 54 48 4f 55 54 20 52 4f 57 49 44 55 08 07 17 1b   THOUT ROWIDU....
+|   3360: 1b 01 81 01 74 61 62 6c 65 74 32 5f 64 61 74 61   ....tablet2_data
+|   3376: 74 32 5f 64 61 74 61 07 43 52 45 41 54 45 20 54   t2_data.CREATE T
+|   3392: 41 42 4c 45 20 27 74 32 5f 64 61 74 61 27 28 69   ABLE 't2_data'(i
+|   3408: 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52   d INTEGER PRIMAR
+|   3424: 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c 4f   Y KEY, block BLO
+|   3440: 42 29 58 07 07 17 11 11 08 81 1d 74 61 62 6c 65   B)X........table
+|   3456: 74 32 74 32 43 52 45 41 54 45 20 56 49 52 54 55   t2t2CREATE VIRTU
+|   3472: 41 4c 20 54 41 42 4c 45 20 74 32 20 55 53 49 4e   AL TABLE t2 USIN
+|   3488: 47 20 66 74 73 35 28 27 61 27 2c 5b 62 5d 2c 22   G fts5('a',[b],.
+|   3504: 63 22 2c 64 65 74 61 69 6c 3d 6e 6f 6e 65 2c 63   c.,detail=none,c
+|   3520: 6f 6c 75 6d 6e 73 69 7a 65 3d 30 29 56 06 06 17   olumnsize=0)V...
+|   3536: 1f 1f 01 7d 74 61 62 6c 65 74 31 5f 63 6f 6e 66   ....tablet1_conf
+|   3552: 69 67 74 31 5f 63 6f 6e 66 69 67 06 43 52 45 41   igt1_config.CREA
+|   3568: 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63 6f 6e   TE TABLE 't1_con
+|   3584: 66 69 67 27 28 6b 20 50 52 49 4d 41 52 59 20 4b   fig'(k PRIMARY K
+|   3600: 45 59 2c 20 76 29 20 57 49 54 48 4f 55 54 20 52   EY, v) WITHOUT R
+|   3616: 4f 57 49 44 5b 05 07 17 21 21 01 81 01 74 61 62   OWID[...!!...tab
+|   3632: 6c 65 74 31 5f 64 6f 63 73 69 7a 65 74 31 5f 64   let1_docsizet1_d
+|   3648: 6f 63 73 69 7a 65 05 43 52 45 41 54 45 20 54 41   ocsize.CREATE TA
+|   3664: 42 4c 45 20 27 74 31 5f 64 6f 63 73 69 7a 65 27   BLE 't1_docsize'
+|   3680: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   (id INTEGER PRIM
+|   3696: 41 52 59 20 4b 45 59 2c 20 73 7a 20 42 4c 4f 42   ARY KEY, sz BLOB
+|   3712: 29 5e 04 07 17 21 21 01 81 07 74 61 62 6c 65 74   )^...!!...tablet
+|   3728: 31 5f 63 6f 6e 74 65 6e 74 74 31 5f 63 6f 6e 74   1_contentt1_cont
+|   3744: 65 6e 74 04 43 52 45 41 54 45 20 54 41 42 4c 45   ent.CREATE TABLE
+|   3760: 20 27 74 31 5f 63 6f 6e 74 65 6e 74 27 28 69 64    't1_content'(id
+|   3776: 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59    INTEGER PRIMARY
+|   3792: 20 4b 45 59 2c 20 63 30 2c 20 63 31 2c 20 63 32    KEY, c0, c1, c2
+|   3808: 29 69 03 07 17 19 19 01 81 2d 74 61 62 6c 65 74   )i.......-tablet
+|   3824: 31 5f 69 64 78 74 31 5f 69 64 78 03 43 52 45 41   1_idxt1_idx.CREA
+|   3840: 54 45 20 54 41 42 4c 45 20 27 74 31 5f 69 64 78   TE TABLE 't1_idx
+|   3856: 27 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20 70   '(segid, term, p
+|   3872: 67 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45 59   gno, PRIMARY KEY
+|   3888: 28 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20 57   (segid, term)) W
+|   3904: 49 54 48 4f 55 54 20 52 4f 57 49 44 55 02 07 17   ITHOUT ROWIDU...
+|   3920: 1b 1b 01 81 01 74 61 62 6c 65 74 31 5f 64 61 74   .....tablet1_dat
+|   3936: 61 74 31 5f 64 61 74 61 02 43 52 45 41 54 45 20   at1_data.CREATE 
+|   3952: 54 41 42 4c 45 20 27 74 31 5f 64 61 74 61 27 28   TABLE 't1_data'(
+|   3968: 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41   id INTEGER PRIMA
+|   3984: 52 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c   RY KEY, block BL
+|   4000: 4f 42 29 5b 01 07 17 11 11 08 81 23 74 61 62 6c   OB)[.......#tabl
+|   4016: 65 74 31 74 31 43 52 45 41 54 45 20 56 49 52 54   et1t1CREATE VIRT
+|   4032: 55 41 4c 20 54 41 42 4c 45 20 74 31 20 55 53 49   UAL TABLE t1 USI
+|   4048: 4e 47 20 66 74 73 35 28 61 2c 62 20 75 6e 69 65   NG fts5(a,b unie
+|   4064: 24 65 78 65 64 2c 63 2c 74 6f 6b 65 6e 69 7a 65   $exed,c,tokenize
+|   4080: 3d 22 70 6f 72 74 65 72 20 61 73 63 69 69 22 29   =.porter ascii.)
+| page 2 offset 4096
+|      0: 0d 0f 68 00 05 0f 13 00 0f e6 0f 13 0f a8 00 00   ..h.............
+|   3856: 00 00 00 15 0a 03 00 30 00 00 00 00 01 03 03 00   .......0........
+|   3872: 03 01 01 01 02 01 01 03 01 01 37 8c 80 80 80 80   ..........7.....
+|   3888: 01 03 00 74 00 20 68 20 69 0d 00 00 00 03 0f e8   ...t. h i.......
+| page 5 offset 16384
+|   4064: 00 00 00 00 00 00 00 00 06 03 03 00 12 03 00 00   ................
+|   4080: 60 20 30 d6 20 30 00 30 60 10 30 01 20 30 00 30   ` 0. 0.0`.0. 0.0
+| page 6 offset 20480
+|      0: a0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 7 offset 24576
+|      0: 0d 00 00 00 03 0f 9e 00 0f e6 0f ef 0f 9e 00 00   ................
+|     16: 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   3984: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 41 84   ..............A.
+|   4000: 80 80 80 80 01 04 00 81 06 00 00 00 34 02 30 61   ............4.0a
+|   4016: 01 00 ff ff ff ff ff ff ff ff ff 11 87 89 06 26   ...............&
+|   4032: 01 64 01 01 01 65 01 01 01 66 01 01 01 66 01 01   .d...e...f...f..
+|   4048: 01 01 01 68 01 01 01 01 01 69 01 01 01 04 01 56   ...h.....i.....V
+|   4064: 06 04 44 00 06 06 07 01 03 00 14 03 09 09 09 0f   ..D.............
+|   4080: 0a 03 00 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 8 offset 28672
+|      0: 0a 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 1c 01 02   ................
+| page 9 offset 32768
+|      0: 0d 00 00 00 9d 0f be 00 0f ea 0f d4 0f be 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 14 03   ................
+|   4032: 05 00 17 17 17 61 20 62 20 63 67 20 68 20 69 67   .....a b cg h ig
+|   4048: 20 68 20 69 14 02 05 00 17 17 17 67 20 68 20 69    h i.......g h i
+|   4064: 61 20 62 20 63 67 20 68 20 69 14 01 04 ff 17 17   a b cg h i......
+|   4080: 17 61 20 62 20 63 64 20 65 20 66 67 20 68 20 69   .a b cd e fg h i
+| page 10 offset 36864
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 01   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| end crash-03b68c01d30713.db
+}]} {}
+
+
+do_catchsql_test 76.1 {
+  SELECT * FROM t4;
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 77.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 24576 pagesize 4096 filename crash-53216796d7c3d8.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 06 40 00 00 06   .....@  ....@...
+|     32: 00 00 00 00 00 00 00 00 00 00 00 06 00 00 00 00   ................
+|     96: 00 00 00 00 0d 00 00 00 06 0e 0f 00 0f aa 0f 53   ...............S
+|    112: 0e e8 0e 8b 0e 33 0e 0f 00 00 00 00 00 00 00 00   .....3..........
+|   3584: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 22   ................
+|   3600: 06 06 17 11 11 01 31 74 61 62 6c 65 62 62 62 62   ......1tablebbbb
+|   3616: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 62 62   .CREATE TABLE bb
+|   3632: 28 61 29 56 05 06 17 1f 1f 01 7d 74 61 62 6c 65   (a)V.......table
+|   3648: 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63 6f 6e 66   t1_configt1_conf
+|   3664: 69 67 05 43 52 45 41 54 45 20 54 41 42 4c 45 20   ig.CREATE TABLE 
+|   3680: 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b 20 50 52   't1_config'(k PR
+|   3696: 49 4d 41 52 59 20 4b 45 59 2c 20 76 29 20 57 49   IMARY KEY, v) WI
+|   3712: 54 48 4f 55 54 20 52 4f 57 49 44 5b 04 07 17 21   THOUT ROWID[...!
+|   3728: 21 01 81 01 74 61 62 6c 65 74 31 5f 64 6f 63 73   !...tablet1_docs
+|   3744: 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65 04 43 52   izet1_docsize.CR
+|   3760: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 64   EATE TABLE 't1_d
+|   3776: 6f 63 73 69 7a 65 27 28 69 64 20 49 4e 54 45 47   ocsize'(id INTEG
+|   3792: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
+|   3808: 73 7a 20 42 4c 4f 42 29 69 03 07 17 19 19 01 81   sz BLOB)i.......
+|   3824: 2d 74 61 62 6c 65 74 31 5f 69 64 78 74 31 5f 69   -tablet1_idxt1_i
+|   3840: 64 78 03 43 52 45 41 54 45 20 54 41 42 4c 45 20   dx.CREATE TABLE 
+|   3856: 27 74 31 5f 69 64 78 27 28 73 65 67 69 64 2c 20   't1_idx'(segid, 
+|   3872: 74 65 72 6d 2c 20 70 67 6e 6f 2c 20 50 52 49 4d   term, pgno, PRIM
+|   3888: 41 52 59 20 4b 45 59 28 73 65 67 69 64 2c 20 74   ARY KEY(segid, t
+|   3904: 65 72 6d 29 29 20 57 49 54 48 4f 55 54 20 52 4f   erm)) WITHOUT RO
+|   3920: 57 49 44 55 35 07 17 1b 1b 01 81 01 74 61 62 6c   WIDU5.......tabl
+|   3936: 65 74 31 5f 64 61 74 61 74 31 5f 64 61 74 61 02   et1_datat1_data.
+|   3952: 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74 31   CREATE TABLE 't1
+|   3968: 5f 64 61 74 61 27 28 69 64 20 49 4e 54 45 47 45   _data'(id INTEGE
+|   3984: 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 62   R PRIMARY KEY, b
+|   4000: 6c 6f 63 6b 20 42 4c 4f 42 29 54 01 07 17 11 11   lock BLOB)T.....
+|   4016: 08 81 15 74 61 62 6c 65 74 31 74 31 43 52 45 41   ...tablet1t1CREA
+|   4032: 54 45 20 56 49 52 54 55 41 4c 20 54 41 42 4c 45   TE VIRTUAL TABLE
+|   4048: 20 74 31 20 55 53 49 4e 47 20 66 74 73 35 28 61    t1 USING fts5(a
+|   4064: 2c 62 2c 70 72 65 66 69 78 3d 22 31 2c 32 2c 33   ,b,prefix=.1,2,3
+|   4080: 2c 34 22 2c 20 63 6f 6e 74 65 6e 74 3d 22 22 29   ,4., content=..)
+| page 2 offset 4096
+|      0: 0d 0b 6a 00 37 09 4c 02 0f e7 09 4c 0f c6 0f a4   ..j.7.L....L....
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+|     32: 0e 8e 0e 6c 0e 4b 0e 29 0e 08 0d e6 0d c4 0d b5   ...l.K.)........
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+|     80: 0b 8d 0b 7e 0b 48 0b 2e 0b 0b 0a ef 0a cc 0a ad   ...~.H..........
+|     96: 0a 8c 0a 6d 00 00 00 00 00 00 00 00 00 00 00 00   ...m............
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+|   2384: 30 00 00 00 01 01 03 35 00 03 01 01 12 02 01 12   0......5........
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+|   2416: 17 01 05 05 34 74 61 62 6c 03 02 03 01 04 77 68   ....4tabl.....wh
+|   2432: 65 72 03 02 06 09 1b 8c 80 80 80 80 0f 03 00 3c   er.............<
+|   2448: 00 00 00 16 05 34 66 74 73 34 03 02 02 01 04 6e   .....4fts4.....n
+|   2464: 75 6d 62 03 06 01 04 09 1b 8c 80 80 80 80 0e 03   umb.............
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+|   2496: 01 03 77 68 65 03 02 04 04 0a 1b 8c 80 80 80 80   ..whe...........
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+|   3152: 01 05 04 09 18 88 80 80 80 80 0b 03 00 36 00 00   .............6..
+|   3168: 00 13 02 03 32 61 72 02 02 03 01 02 62 65 02 02   ....2ar.....be..
+|   3184: 04 05 07 1b 88 80 80 80 80 0a 03 00 3c 00 00 00   ............<...
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+|   3216: 06 01 01 04 09 19 88 80 80 80 80 09 03 00 38 00   ..............8.
+|   3232: 00 00 14 02 31 6e 02 06 01 01 03 01 01 72 02 06   ....1n.......r..
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+|   3280: 06 04 06 19 88 80 80 80 80 07 03 00 38 00 00 00   ............8...
+|   3296: 14 04 02 31 32 02 02 05 01 01 61 02 08 03 01 01   ...12.....a.....
+|   3312: 02 05 06 1b 88 80 80 80 80 06 03 00 3c 00 00 00   ............<...
+|   3328: 16 06 30 74 68 65 72 65 e7 02 02 00 02 31 31 02   ..0there.....11.
+|   3344: 06 01 01 04 0a 15 88 80 80 80 80 05 03 00 30 00   ..............0.
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+|   3376: 07 1c 88 80 80 80 80 04 03 00 3e 00 00 00 17 01   ..........>.....
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+|   3456: 00 00 00 15 04 30 61 6e 64 02 06 01 01 02 02 02   .....0and.......
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+|   3488: 34 01 00 00 12 02 30 31 02 06 01 01 04 01 01 32   4.....01.......2
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+|   3520: 00 00 05 04 1b 84 80 80 80 80 11 03 00 3c 00 00   .............<..
+|   3536: 00 16 05 34 74 61 62 6c 01 06 01 01 05 02 03 65   ...4tabl.......e
+|   3552: 72 6d 01 02 04 0b 1b 84 80 80 80 80 10 03 00 3c   rm.............<
+|   3568: 00 00 00 16 05 34 65 61 63 68 01 02 02 01 04 70   .....4each.....p
+|   3584: 72 65 73 01 02 05 04 09 1a 84 80 80 80 80 0f 03   res.............
+|   3600: 00 3a 00 00 00 15 04 33 74 65 72 01 02 04 02 02   .:.....3ter.....
+|   3616: 68 65 01 06 01 01 03 04 08 1b 84 80 80 80 80 0e   he..............
+|   3632: 03 00 3c 00 00 00 16 04 33 70 72 65 01 02 05 01   ..<.....3pre....
+|   3648: 03 74 61 62 01 06 01 01 05 04 08 1a 84 80 80 80   .tab............
+|   3664: 80 0d 03 00 3a 00 00 00 15 04 33 66 6f 72 01 02   ....:.....3for..
+|   3680: 02 02 02 74 73 01 06 01 01 04 04 08 1b 84 80 80   ...ts...........
+|   3696: 80 80 0c 03 00 3c 00 00 00 16 03 32 74 68 01 06   .....<.....2th..
+|   3712: 01 01 03 00 04 33 65 61 63 01 02 03 04 09 18 84   .....3eac.......
+|   3728: 80 80 80 80 0b 03 00 36 00 00 00 13 03 32 74 61   .......6.....2ta
+|   3744: 01 06 01 01 05 02 01 65 01 02 04 04 09 19 84 80   .......e........
+|   3760: 80 80 80 0a 03 00 38 00 00 00 14 03 32 69 6e 01   ......8.....2in.
+|   3776: 06 01 01 02 01 02 70 72 01 02 05 04 09 18 84 80   ......pr........
+|   3792: 80 80 80 09 03 00 36 00 00 00 13 03 32 66 6f 01   ......6.....2fo.
+|   3808: 02 02 02 01 74 01 06 01 01 04 04 07 1b 84 80 80   ....t...........
+|   3824: 80 80 08 03 00 3c 00 00 00 16 02 31 74 01 0a 04   .....<.....1t...
+|   3840: 01 01 03 04 00 03 32 65 61 01 02 03 04 0a 17 84   ......2ea.......
+|   3856: 80 80 80 80 07 03 00 34 00 00 00 12 02 31 69 01   .......4.....1i.
+|   3872: 06 01 01 02 01 01 70 01 02 05 04 08 18 84 80 80   ......p.........
+|   3888: 80 80 06 03 00 36 00 00 00 13 02 31 65 01 02 03   .....6.....1e...
+|   3904: 01 01 66 01 08 02 01 01 04 04 06 1b 84 80 80 80   ..f.............
+|   3920: 80 05 03 00 3c 00 00 00 16 05 30 74 65 72 6d 01   ....<.....0term.
+|   3936: 02 04 02 02 68 65 01 06 01 01 03 04 09 14 84 80   ....he..........
+|   3952: 80 80 80 04 03 00 2e 00 00 00 10 06 30 74 61 62   ............0tab
+|   3968: 6c 65 01 06 01 01 05 04 15 84 7f 80 80 80 03 03   le..............
+|   3984: 00 30 00 00 00 11 02 08 30 70 72 65 73 65 6e 74   .0......0present
+|   4000: 01 02 05 05 1b 84 80 80 80 80 02 03 00 3c 00 00   .............<..
+|   4016: 00 16 04 30 66 74 73 01 06 01 01 04 01 02 69 6e   ...0fts.......in
+|   4032: 01 06 01 01 04 0a 1a 84 80 80 80 80 01 03 00 3a   ...............:
+|   4048: 00 00 00 15 05 30 65 61 63 68 01 02 03 01 03 66   .....0each.....f
+|   4064: 6f 72 01 02 02 04 09 06 01 03 00 12 03 0b 0f 00   or..............
+|   4080: 00 08 8c 80 80 80 80 11 03 00 16 00 00 00 05 04   ................
+| page 3 offset 8192
+|      0: 0a 00 00 00 32 0e 4f 00 0f fa 0f f1 0f e9 0f e1   ....2.O.........
+|     16: 0f d8 0f d1 0f c9 0f c1 0f b9 0f b1 0f a9 0f a0   ................
+|     32: 0f 98 0f 90 0f 87 0f 80 0f 78 0f 71 0f 68 0f 5f   .........x.q.h._
+|     48: 0f 56 0f 4d 0f 41 0f 38 0f 2f 0f 26 0f 1d 0f 03   .V.M.A.8./.&....
+|     64: 0f 0a 0f 00 9e f7 0e ee 0e e6 0e dd 0e d6 0e cd   ................
+|     80: 0e c3 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   3648: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08   ................
+|   3664: 04 01 10 01 03 34 74 20 07 04 01 0e 01 03 34 1e   .....4t ......4.
+|   3680: 09 04 01 12 01 03 33 74 68 1c 08 04 01 10 01 03   ......3th.......
+|   3696: 33 6e 1a 08 04 01 10 01 03 32 77 18 08 04 01 10   3n.......2w.....
+|   3712: 01 03 32 74 16 08 04 01 10 01 03 32 6e 14 07 04   ..2t.......2n...
+|   3728: 01 0e 01 03 32 12 08 04 01 10 01 03 31 74 10 08   ....2.......1t..
+|   3744: 04 01 10 01 03 31 6e 0e 07 04 01 0e 01 03 31 0c   .....1n.......1.
+|   3760: 09 04 01 12 01 03 30 74 68 0a 08 04 01 10 01 03   ......0th.......
+|   3776: 30 74 08 09 04 01 12 01 03 30 6e 75 06 08 04 01   0t.......0nu....
+|   3792: 10 01 03 30 6e 04 06 04 01 0c 01 03 02 08 04 01   ...0n...........
+|   3808: 10 01 02 34 72 22 07 04 01 0e 01 02 34 20 08 04   ...4r.......4 ..
+|   3824: 01 10 01 02 33 72 1e 09 04 01 12 01 02 33 61 72   ....3r.......3ar
+|   3840: 1c 18 04 01 10 01 02 32 74 1a 08 04 01 10 01 02   .......2t.......
+|   3856: 32 69 18 09 04 01 12 01 02 32 61 72 16 08 04 01   2i.......2ar....
+|   3872: 10 01 02 31 74 14 08 04 01 0f 01 02 31 6e 12 0a   ...1t.......1n..
+|   3888: d4 01 10 01 02 31 62 10 08 04 01 10 01 02 31 32   .....1b.......12
+|   3904: 0e 0b 04 01 16 01 02 30 74 68 65 72 0c 08 04 01   .......0ther....
+|   3920: 10 01 02 30 74 0a 08 04 01 10 01 02 30 6e 08 08   ...0t.......0n..
+|   3936: 04 01 10 01 02 30 62 06 08 04 01 10 01 02 30 61   .....0b.......0a
+|   3952: 04 06 04 01 0c 01 02 02 07 04 09 10 01 34 74 22   .............4t.
+|   3968: 06 04 09 0e 01 34 20 08 04 09 12 01 33 74 65 1e   .....4 .....3te.
+|   3984: 07 04 09 10 01 33 70 1c 07 04 09 10 01 33 66 1a   .....3p......3f.
+|   4000: 08 04 09 12 01 32 74 68 18 07 04 09 10 01 32 74   .....2th......2t
+|   4016: 16 07 04 09 10 01 32 69 14 07 04 09 10 01 32 66   ......2i......2f
+|   4032: 12 07 04 09 10 01 31 74 10 07 04 09 10 01 31 69   ......1t......1i
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+|   4064: 0a 07 04 09 10 01 30 74 08 07 04 09 10 01 30 70   ......0t......0p
+|   4080: 06 08 04 09 1e 61 30 66 74 04 05 04 09 0c 01 02   .....a0ft.......
+| page 4 offset 12288
+|      0: 0d 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 05 03 03 00 10   ................
+|   4080: 03 05 05 02 03 00 10 04 06 05 01 03 00 10 04 04   ................
+| page 5 offset 16384
+|      0: 0a 00 00 00 02 0f eb 00 0f eb 0f f4 00 00 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 08 03 15 01 70   ...............p
+|   4080: 67 73 7a 18 0b 03 1b 01 76 65 72 73 69 6f 6e 04   gsz.....version.
+| page 6 offset 20480
+|      0: 0d 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4080: 00 00 03 03 02 01 da 03 02 02 01 02 00 00 00 00   ................
+| end crash-53216796d7c3d8.db
+}]} {}
+
+do_catchsql_test 77.1 {
+  UPDATE t1 SET B =quote(zeroblob(200)) WHERE b MATCH 'threa*thrad*tlrad*the�d';
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 78.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a,b,c);
+  DELETE FROM t1_data;
+  INSERT INTO t1_data VALUES(1,X'245a2424');
+  INSERT INTO t1_data VALUES(10,X'000000000101010001010101');
+  INSERT INTO t1_data VALUES(137438953473,X'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');
+}
+
+do_execsql_test 78.1 {
+  CREATE VIRTUAL TABLE t3 USING fts5vocab('t1','col');
+}
+
+do_execsql_test 78.2 {
+  SELECT count(rowid) FROM t3 WHERE term>='nsocse';
+} 2
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 79.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 28672 pagesize 4096 filename sql053282.txt.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 07   .....@  ........
+|     32: 00 00 00 02 00 00 00 01 00 00 00 00 00 00 00 00   ................
+|     96: 00 00 00 00 0d 0f c7 00 06 0d b6 00 0f 8d 0f 36   ...............6
+|    112: 0e cb 0e 6b 0e 0e 0d b6 0d b5 00 00 00 00 00 00   ...k............
+|   3504: 00 00 00 00 00 00 56 07 06 17 1f 1f 01 7d 74 61   ......V.......ta
+|   3520: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   blet1_configt1_c
+|   3536: 6f 6e 66 69 67 07 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
+|   3552: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
+|   3568: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
+|   3584: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 06    WITHOUT ROWID[.
+|   3600: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64   ..!!...tablet1_d
+|   3616: 6f 63 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65   ocsizet1_docsize
+|   3632: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
+|   3648: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
+|   3664: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
+|   3680: 59 2c 20 73 7a 20 42 4c 4f 42 29 5e 05 07 17 21   Y, sz BLOB)^...!
+|   3696: 21 01 81 07 74 61 62 6c 65 74 31 5f 63 6f 6e 74   !...tablet1_cont
+|   3712: 65 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 05 43 52   entt1_content.CR
+|   3728: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63   EATE TABLE 't1_c
+|   3744: 6f 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47   ontent'(id INTEG
+|   3760: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
+|   3776: 63 30 2c 20 63 31 2c 20 63 32 29 69 04 07 17 19   c0, c1, c2)i....
+|   3792: 19 01 81 2d 74 61 62 6c 65 74 31 5f 69 64 78 74   ...-tablet1_idxt
+|   3808: 31 5f 69 64 78 04 43 52 45 41 54 45 20 54 41 42   1_idx.CREATE TAB
+|   3824: 4c 45 20 27 74 31 5f 69 64 78 27 28 73 65 67 69   LE 't1_idx'(segi
+|   3840: 64 2c 20 74 65 72 6d 2c 20 70 67 6e 6f 2c 20 50   d, term, pgno, P
+|   3856: 52 49 4d 41 52 59 20 4b 45 59 28 73 65 67 69 64   RIMARY KEY(segid
+|   3872: 2c 20 74 65 72 6d 29 29 20 57 49 54 48 4f 55 54   , term)) WITHOUT
+|   3888: 20 52 4f 57 49 44 55 03 07 17 1b 1b 01 81 01 74    ROWIDU........t
+|   3904: 61 62 6c 65 74 31 5f 64 61 74 61 74 31 5f 64 61   ablet1_datat1_da
+|   3920: 74 61 03 43 52 45 41 54 45 20 54 41 42 4c 45 20   ta.CREATE TABLE 
+|   3936: 27 74 31 5f 64 61 74 61 27 28 69 64 20 49 4e 54   't1_data'(id INT
+|   3952: 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59   EGER PRIMARY KEY
+|   3968: 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42 29 38 02 06   , block BLOB)8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 35   LE t1 USING fts5
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 00 00 00 00 00 00   (a,b,c).........
+| page 3 offset 8192
+|      0: 0d 00 00 00 03 0c 94 00 0f e6 0f ef 0c 94 00 01   ................
+|   3216: 00 00 00 00 86 4a 84 80 80 80 80 01 04 00 8d 18   .....J..........
+|   3232: 00 00 03 2b 02 30 30 01 02 06 01 02 06 01 02 06   ...+.00.........
+|   3248: 1f 02 03 01 02 03 01 02 03 01 08 32 30 31 36 30   ...........20160
+|   3264: 36 30 39 01 02 07 01 02 07 01 02 07 01 01 34 01   609...........4.
+|   3280: 02 05 01 02 05 01 02 05 01 01 35 01 02 04 01 02   ..........5.....
+|   3296: 04 01 02 04 02 07 30 30 30 30 30 30 30 1c 02 04   ......0000000...
+|   3312: 01 02 04 01 02 04 01 06 62 69 6e 61 72 79 03 06   ........binary..
+|   3328: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3344: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3360: 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02   ................
+|   3376: 03 06 01 02 02 03 06 01 02 02 01 08 63 6f 6d 70   ............comp
+|   3392: 69 6c 65 72 01 02 02 01 02 02 01 02 02 01 06 64   iler...........d
+|   3408: 62 73 74 61 74 07 02 03 01 02 03 01 02 03 02 04   bstat...........
+|   3424: 65 62 75 67 04 02 02 01 02 02 01 02 02 01 06 65   ebug...........e
+|   3440: 6e 61 62 6c 65 07 02 02 01 02 02 01 02 02 01 02   nable...........
+|   3456: 02 01 02 02 01 02 02 01 02 02 01 02 02 01 02 02   ................
+|   3472: 01 02 02 01 02 02 01 02 02 01 02 02 01 02 02 01   ................
+|   3488: 02 02 01 02 02 01 02 02 01 02 12 01 02 02 01 02   ................
+|   3504: 02 01 02 02 02 08 78 74 65 6e 73 69 6f 6e 1f 02   ......xtension..
+|   3520: 04 01 02 04 01 02 04 01 04 66 74 73 34 0a 02 03   .........fts4...
+|   3536: 01 02 03 01 02 03 04 01 35 0d 02 03 01 02 03 01   ........5.......
+|   3552: 02 03 01 03 67 63 63 01 02 03 01 02 03 01 02 03   ....gcc.........
+|   3568: 02 06 65 6f 70 6f 6c 79 10 02 03 01 02 03 01 02   ..eopoly........
+|   3584: 03 01 05 6a 73 6f 6e 31 13 02 03 01 02 03 01 02   ...json1........
+|   3600: 03 01 04 6c 6f 61 64 1f 02 03 01 02 03 01 02 03   ...load.........
+|   3616: 01 03 6d 61 78 1c 02 02 01 02 02 01 02 02 02 05   ..max...........
+|   3632: 65 6d 6f 72 79 1c 02 03 01 02 03 01 02 03 04 04   emory...........
+|   3648: 73 79 73 35 16 02 03 01 02 03 01 02 03 01 06 6e   sys5...........n
+|   3664: 6f 63 61 73 65 02 06 01 02 02 03 06 01 02 02 03   ocase...........
+|   3680: 06 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06   ................
+|   3696: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3712: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3728: 02 01 04 6f 6d 69 74 1f 02 02 01 02 02 01 02 02   ...omit.........
+|   3744: 01 05 72 74 72 65 65 19 02 03 01 02 03 01 02 03   ..rtree.........
+|   3760: 04 02 69 6d 01 06 01 02 02 03 06 01 02 02 03 06   ..im............
+|   3776: 01 02 02 03 06 01 01 02 03 06 01 02 02 03 06 01   ................
+|   3792: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3808: 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02   ................
+|   3824: 01 0a 74 68 72 65 61 64 73 61 66 65 22 02 02 01   ..threadsafe....
+|   3840: 02 02 01 02 02 01 04 76 74 61 62 07 02 04 01 02   .......vtab.....
+|   3856: 04 01 02 04 01 01 78 01 05 f1 01 02 01 06 01 01   ......x.........
+|   3872: 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02   ................
+|   3888: 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01   ................
+|   3904: 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06   ................
+|   3920: 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01   ................
+|   3936: 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01   ................
+|   3952: 01 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02   ................
+|   3968: 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01   ................
+|   3984: 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06   ................
+|   4000: 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01   ................
+|   4016: 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01   ................
+|   4032: 02 01 06 01 01 02 01 06 01 01 02 04 15 13 0c 0c   ................
+|   4048: 12 44 13 11 0f 47 13 0f 0c 0e 11 10 0f 0e 10 0f   .D...G..........
+|   4064: 44 0f 10 40 15 0f 07 01 03 00 14 24 5a 24 24 0f   D..@.......$Z$$.
+|   4080: 0a 03 00 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 4 offset 12288
+|      0: 0a 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
+| page 5 offset 16384
+|      0: 0d 00 00 00 24 0c 0a 00 0f d8 0f af 0f 86 0f 74   ....$..........t
+|     16: 0f 61 0f 4e 0f 2f 0f 0f 0e ef 0e d7 0e be 0e a5   .a.N./..........
+|     32: 0e 8d 0e 74 0e 5b 0e 40 0e 24 0e 08 0d ef 0d d5   ...t.[.@.$......
+|     48: 0d bb 0d a0 0d 84 0d 68 0d 4f 0d 00 00 00 00 00   .......h.O......
+|   3072: 00 00 00 00 00 00 00 00 00 00 18 24 05 00 25 0f   ...........$..%.
+|   3088: 19 54 48 52 45 41 44 53 41 46 45 3d 30 58 42 49   .THREADSAFE=0XBI
+|   3104: 4e 41 52 59 18 23 05 00 25 0f 19 54 48 52 45 41   NARY.#..%..THREA
+|   3120: 44 53 41 46 45 3d 30 58 4e 4f 43 41 53 45 17 22   DSAFE=0XNOCASE..
+|   3136: 05 00 25 0f 17 54 48 52 45 41 44 53 41 46 45 3d   ..%..THREADSAFE=
+|   3152: 30 58 52 54 52 49 4d 1f 21 05 00 33 0f 19 4f 4d   0XRTRIM.!..3..OM
+|   3168: 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49 4f   IT LOAD EXTENSIO
+|   3184: 4e 58 42 49 4e 41 52 59 1f 20 05 00 33 0f 19 4f   NXBINARY. ..3..O
+|   3200: 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49   MIT LOAD EXTENSI
+|   3216: 4f 4e 58 4e 4f 43 41 53 45 1e 1f 05 00 33 0f 17   ONXNOCASE....3..
+|   3232: 4f 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53   OMIT LOAD EXTENS
+|   3248: 49 4f 4e 58 52 54 52 49 4d 1f 1e 05 00 33 0f 19   IONXRTRIM....3..
+|   3264: 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30 30   MAX MEMORY=50000
+|   3280: 30 30 30 58 42 49 4e 41 52 59 1f 1d 05 00 33 0f   000XBINARY....3.
+|   3296: 19 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30   .MAX MEMORY=5000
+|   3312: 30 30 30 30 58 4e 4f 43 41 53 45 1e 1c 05 00 33   0000XNOCASE....3
+|   3328: 0f 17 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30   ..MAX MEMORY=500
+|   3344: 30 30 30 30 30 58 52 54 52 49 4d 18 1b 05 00 2c   00000XRTRIM....,
+|   3360: 0f 19 45 4e 41 42 4c 45 20 52 54 52 45 45 58 42   ..ENABLE RTREEXB
+|   3376: 49 4e 41 52 59 18 1a 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3392: 4c 45 20 52 54 52 45 45 58 4e 4f 43 41 53 45 17   LE RTREEXNOCASE.
+|   3408: 19 05 00 25 0f 17 45 4e 41 42 4c 45 20 52 54 52   ...%..ENABLE RTR
+|   3424: 45 45 58 52 54 52 49 4d 1a 18 05 00 29 0f 19 45   EEXRTRIM....)..E
+|   3440: 4e 41 42 4c 45 20 4d 45 4d 5a 69 53 35 58 42 49   NABLE MEMZiS5XBI
+|   3456: 4e 41 52 59 1a 17 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3472: 45 20 4d 45 4d 53 59 53 35 58 4e 4f 43 41 53 45   E MEMSYS5XNOCASE
+|   3488: 19 16 05 00 29 0f 17 45 4e 41 42 4c 45 20 4d 45   ....)..ENABLE ME
+|   3504: 4d 53 59 53 35 58 52 54 52 49 4d 18 15 05 00 25   MSYS5XRTRIM....%
+|   3520: 0f 19 45 4e 41 42 4c 45 20 4a 53 4f 4e 31 58 42   ..ENABLE JSON1XB
+|   3536: 49 4e 41 52 59 18 14 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3552: 4c 45 20 4a 53 4f 4e 31 58 4e 4f 43 41 53 45 17   LE JSON1XNOCASE.
+|   3568: 13 05 00 25 0f 17 45 4e 41 42 4c 45 20 4a 53 4f   ...%..ENABLE JSO
+|   3584: 4e 31 58 52 54 52 49 4d 1a 12 05 00 29 0f 19 45   N1XRTRIM....)..E
+|   3600: 4e 41 42 4c 45 20 47 45 4f 50 4f 4c 59 58 42 49   NABLE GEOPOLYXBI
+|   3616: 4e 41 52 59 1a 11 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3632: 45 20 47 45 4f 50 4f 4c 59 58 4e 4f 43 41 53 45   E GEOPOLYXNOCASE
+|   3648: 19 10 05 00 29 0f 17 45 4e 41 42 4c 45 20 47 45   ....)..ENABLE GE
+|   3664: 4f 50 4f 4c 59 58 52 54 52 49 4d 17 0f 05 00 23   OPOLYXRTRIM....#
+|   3680: 0f 19 45 4e 41 42 4c 45 20 46 54 53 35 58 42 49   ..ENABLE FTS5XBI
+|   3696: 4e 41 52 59 17 0e 05 00 23 0f 19 45 4e 41 42 4c   NARY....#..ENABL
+|   3712: 45 20 46 54 53 35 58 4e 4f 43 41 53 45 16 0d 05   E FTS5XNOCASE...
+|   3728: 00 23 0f 17 45 4e 41 42 4c 45 20 46 54 53 3f d8   .#..ENABLE FTS?.
+|   3744: 52 54 52 49 4d 17 0c 05 00 23 0f 19 45 4e 41 42   RTRIM....#..ENAB
+|   3760: 4c 45 20 46 54 53 34 58 42 49 4e 41 52 59 17 0b   LE FTS4XBINARY..
+|   3776: 05 00 23 0f 19 45 4e 41 42 4c 45 20 46 54 53 34   ..#..ENABLE FTS4
+|   3792: 58 4e 4f 43 41 53 45 16 0a 05 00 23 0f 17 45 4e   XNOCASE....#..EN
+|   3808: 41 42 4c 45 20 46 54 53 34 58 52 54 52 49 4d 1e   ABLE FTS4XRTRIM.
+|   3824: 09 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3840: 55 41 54 20 56 54 41 42 58 42 49 4e 41 52 59 1e   UAT VTABXBINARY.
+|   3856: 08 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3872: 54 41 54 20 56 54 41 42 58 4e 4f 43 41 53 45 1d   TAT VTABXNOCASE.
+|   3888: 07 05 00 31 0f 17 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3904: 54 41 54 20 56 54 41 42 58 52 54 52 49 4d 11 06   TAT VTABXRTRIM..
+|   3920: 05 00 17 0f 19 44 45 42 55 47 58 42 49 4e 41 52   .....DEBUGXBINAR
+|   3936: 59 11 05 05 00 17 0f 19 44 45 42 55 47 58 4e 4f   Y.......DEBUGXNO
+|   3952: 43 41 53 45 10 04 05 00 17 0f 17 44 45 42 55 46   CASE.......DEBUF
+|   3968: e8 52 54 52 49 4d 27 03 05 00 43 0f 19 43 4f 4d   .RTRIM'...C..COM
+|   3984: 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e 30 20   PILER=gcc-5.4.0 
+|   4000: 32 30 31 36 30 36 30 39 58 42 49 4e 41 52 59 27   20160609XBINARY'
+|   4016: 02 05 00 43 0f 19 43 4f 4d 50 49 4c 45 52 3d 67   ...C..COMPILER=g
+|   4032: 63 63 2d 35 2e 34 2e 30 20 32 30 31 36 30 36 30   cc-5.4.0 2016060
+|   4048: 39 58 4e 4f 43 41 53 45 26 01 05 00 43 0f 17 43   9XNOCASE&...C..C
+|   4064: 4f 4d 50 49 4c 45 52 3d 67 62 63 2d 35 2e 34 2e   OMPILER=gbc-5.4.
+|   4080: 30 20 32 30 31 36 30 36 30 39 58 52 54 52 49 4d   0 20160609XRTRIM
+| page 6 offset 20480
+|      0: 0d 00 00 00 24 0e e0 00 0f f8 0f f0 0f e8 0f e0   ....$...........
+|     16: 0f d8 0f d0 0f c8 0f c0 0f b8 0f bb 1f a8 0f a0   ................
+|     32: 0f 98 0f 90 0f 88 0f 80 0f 78 0f 70 0f 68 0f 60   .........x.p.h.`
+|     48: 0f 58 0f 50 0f 48 0f 40 0f 38 0f 30 00 00 00 00   .X.P.H.@.8.0....
+|   3808: 06 24 03 00 12 02 01 01 06 23 03 00 12 02 01 01   .$.......#......
+|   3824: 06 22 03 00 12 02 01 01 06 21 03 00 12 03 01 01   .........!......
+|   3840: 06 20 03 00 12 03 01 01 06 1f 03 00 12 03 01 01   . ..............
+|   3856: 06 1e 03 00 12 03 01 01 06 1d 03 00 12 03 01 01   ................
+|   3872: 06 1c 03 00 12 03 01 01 06 1b 03 00 12 02 01 01   ................
+|   3888: 06 1a 03 00 12 02 01 01 06 19 03 00 12 02 01 01   ................
+|   3904: 06 18 03 00 12 02 01 01 06 17 03 00 12 02 01 01   ................
+|   3920: 06 16 03 00 12 02 01 01 06 15 03 00 12 02 01 01   ................
+|   3936: 06 14 03 00 12 02 01 01 06 13 03 00 12 02 01 01   ................
+|   3952: 06 12 03 00 12 02 01 01 06 11 03 00 12 02 01 01   ................
+|   3968: 06 10 03 00 12 02 01 01 06 0f 03 00 12 02 01 01   ................
+|   3984: 06 0e 03 00 12 02 01 01 06 0d 03 00 12 02 01 01   ................
+|   4000: 06 0c 03 00 12 02 01 01 06 0b 03 00 12 02 01 01   ................
+|   4016: 06 0a 03 00 12 02 01 01 06 09 03 00 12 03 01 01   ................
+|   4032: 06 08 03 00 12 03 01 01 06 07 03 00 12 03 01 01   ................
+|   4048: 06 06 03 00 12 01 01 01 06 05 03 00 12 01 01 01   ................
+|   4064: 06 04 03 00 12 01 01 01 06 03 03 00 12 06 01 01   ................
+|   4080: 06 0a 83 00 12 06 01 01 06 01 03 00 12 06 01 01   ................
+| page 7 offset 24576
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| end sql053282.txt.db 
+}]} {}
+
+do_execsql_test 79.1 {
+  CREATE VIRTUAL TABLE t2 USING fts5vocab('t1','row');
+}
+
+do_catchsql_test 79.2 {
+  INSERT INTO t1(t1) SELECT 'merge' FROM t2;
+} {1 {query aborted}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 80.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 40960 pagesize 4096 filename crash-f928a9c1ec68dd.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 0a   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 0d 00 00 00 04   ................
+|     96: 00 00 00 00 0d 00 00 00 0d 0b 6e 00 0f a3 0f 4c   ..........n....L
+|    112: 0e e1 0e 81 0e 24 0d cc 0d 72 0d 1b 0c b0 0c 50   .....$...r.....P
+|    128: 0b f8 0b b3 0b 6e 00 00 00 00 00 00 00 00 00 00   .....n..........
+|   2912: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 43 0d   ..............C.
+|   2928: 06 17 11 11 08 75 74 61 62 6c 65 74 34 74 34 43   .....utablet4t4C
+|   2944: 52 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41   REATE VIRTUAL TA
+|   2960: 42 4c 45 20 74 34 20 55 53 49 4e 47 20 66 74 73   BLE t4 USING fts
+|   2976: 35 76 6f 63 61 62 28 27 74 32 27 2c 20 27 72 6f   5vocab('t2', 'ro
+|   2992: 77 27 29 43 0c 06 17 11 11 08 75 74 61 62 6c 65   w')C......utable
+|   3008: 74 33 74 33 43 52 45 41 54 45 20 56 49 52 54 55   t3t3CREATE VIRTU
+|   3024: 41 4c 20 54 41 42 4c 45 20 74 33 20 55 53 49 4e   AL TABLE t3 USIN
+|   3040: 47 20 66 74 73 35 76 6f 63 61 62 28 27 74 31 27   G fts5vocab('t1'
+|   3056: 2c 20 27 72 6f 77 27 29 56 0b 06 17 1f 1f 01 7d   , 'row')V.......
+|   3072: 74 61 62 6c 65 74 32 5f 63 6f 6e 66 69 67 74 32   tablet2_configt2
+|   3088: 5f 63 6f 6e 66 69 67 0a 43 52 45 41 54 45 20 54   _config.CREATE T
+|   3104: 41 42 4c 45 20 27 74 32 5f 63 6f 6e 66 69 67 27   ABLE 't2_config'
+|   3120: 28 6b 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   (k PRIMARY KEY, 
+|   3136: 76 29 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44   v) WITHOUT ROWID
+|   3152: 5e 0a 07 17 21 21 01 81 07 74 61 62 6c 65 74 32   ^...!!...tablet2
+|   3168: 5f 63 6f 6e 74 65 6e 74 74 32 5f 63 6f 6e 74 65   _contentt2_conte
+|   3184: 6e 74 09 43 52 45 41 54 45 20 54 41 42 4c 45 20   nt.CREATE TABLE 
+|   3200: 27 74 32 5f 63 6f 6e 74 65 6e 74 27 28 69 64 20   't2_content'(id 
+|   3216: 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59 20   INTEGER PRIMARY 
+|   3232: 4b 45 59 2c 20 63 30 2c 20 63 31 2c 20 63 32 29   KEY, c0, c1, c2)
+|   3248: 69 09 07 17 19 19 01 81 2d 74 61 62 6c 65 74 32   i.......-tablet2
+|   3264: 5f 69 64 78 74 32 5f 69 64 78 08 43 52 45 41 54   _idxt2_idx.CREAT
+|   3280: 45 20 54 41 42 4c 45 20 27 74 32 5f 69 64 78 27   E TABLE 't2_idx'
+|   3296: 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20 70 67   (segid, term, pg
+|   3312: 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45 59 28   no, PRIMARY KEY(
+|   3328: 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20 57 49   segid, term)) WI
+|   3344: 54 48 4f 55 54 20 52 4f 57 49 44 55 08 07 17 1b   THOUT ROWIDU....
+|   3360: 1b 01 81 01 74 61 62 6c 65 74 32 5f 64 61 74 61   ....tablet2_data
+|   3376: 74 32 5f 64 61 74 61 07 43 52 45 41 54 45 20 54   t2_data.CREATE T
+|   3392: 41 42 4c 45 20 27 74 32 5f 64 61 74 61 27 28 69   ABLE 't2_data'(i
+|   3408: 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52   d INTEGER PRIMAR
+|   3424: 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c 4f   Y KEY, block BLO
+|   3440: 42 29 58 07 07 17 11 11 08 81 1d 74 61 62 6c 65   B)X........table
+|   3456: 74 32 74 32 43 52 45 41 54 45 20 56 49 52 54 55   t2t2CREATE VIRTU
+|   3472: 41 4c 20 54 41 42 4c 45 20 74 32 20 55 53 49 4e   AL TABLE t2 USIN
+|   3488: 47 20 66 74 73 35 28 27 61 27 2c 5b 62 5d 2c 22   G fts5('a',[b],.
+|   3504: 63 22 2c 64 65 74 61 69 6c 3d 6e 6f 6e 65 2c 63   c.,detail=none,c
+|   3520: 6f 6c 75 6d 6e 73 69 7a 65 3d 30 29 56 06 06 17   olumnsize=0)V...
+|   3536: 1f 1f 01 7d 74 61 62 6c 65 74 31 5f 63 6f 6e 66   ....tablet1_conf
+|   3552: 69 67 74 31 5f 63 6f 6e 66 69 67 06 43 52 45 41   igt1_config.CREA
+|   3568: 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63 6f 6e   TE TABLE 't1_con
+|   3584: 66 69 67 27 28 6b 20 50 52 49 4d 41 52 59 20 4b   fig'(k PRIMARY K
+|   3600: 45 59 2c 20 76 29 20 57 49 54 48 4f 55 54 20 52   EY, v) WITHOUT R
+|   3616: 4f 57 49 44 5b 05 07 17 21 21 01 81 01 74 61 62   OWID[...!!...tab
+|   3632: 6c 65 74 31 5f 64 6f 63 73 69 7a 65 74 31 5f 64   let1_docsizet1_d
+|   3648: 6f 63 73 69 7a 65 05 43 52 45 41 54 45 20 54 41   ocsize.CREATE TA
+|   3664: 42 4c 45 20 27 74 31 5f 64 6f 63 73 69 7a 65 27   BLE 't1_docsize'
+|   3680: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   (id INTEGER PRIM
+|   3696: 41 52 59 20 4b 45 59 2c 20 73 7a 20 42 4c 4f 42   ARY KEY, sz BLOB
+|   3712: 29 5e 04 07 17 21 21 01 81 07 74 61 62 6c 65 74   )^...!!...tablet
+|   3728: 31 5f 63 6f 6e 74 65 6e 74 74 31 5f 63 6f 6e 74   1_contentt1_cont
+|   3744: 65 6e 74 04 43 52 45 41 54 45 20 54 41 42 4c 45   ent.CREATE TABLE
+|   3760: 20 27 74 31 5f 63 6f 6e 74 65 6e 74 27 28 69 64    't1_content'(id
+|   3776: 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59    INTEGER PRIMARY
+|   3792: 20 4b 45 59 2c 20 63 30 2c 20 63 31 2c 20 63 32    KEY, c0, c1, c2
+|   3808: 29 69 03 07 17 19 19 01 81 2d 74 61 62 6c 65 74   )i.......-tablet
+|   3824: 31 5f 69 64 78 74 31 5f 69 64 78 03 43 52 45 41   1_idxt1_idx.CREA
+|   3840: 54 45 20 54 41 42 4c 45 20 27 74 31 5f 69 64 78   TE TABLE 't1_idx
+|   3856: 27 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20 70   '(segid, term, p
+|   3872: 67 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45 59   gno, PRIMARY KEY
+|   3888: 28 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20 57   (segid, term)) W
+|   3904: 49 54 48 4f 55 54 20 52 4f 57 49 44 55 02 07 17   ITHOUT ROWIDU...
+|   3920: 1b 1b 01 81 01 74 61 62 6c 65 74 31 5f 64 61 74   .....tablet1_dat
+|   3936: 61 74 31 5f 64 61 74 61 02 43 52 45 41 54 45 20   at1_data.CREATE 
+|   3952: 54 41 42 4c 45 20 27 74 31 5f 64 61 74 61 27 28   TABLE 't1_data'(
+|   3968: 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41   id INTEGER PRIMA
+|   3984: 52 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c   RY KEY, block BL
+|   4000: 4f 42 29 5b 01 07 17 11 11 08 81 23 74 61 62 6c   OB)[.......#tabl
+|   4016: 65 74 31 74 31 43 52 45 41 54 45 20 56 49 52 54   et1t1CREATE VIRT
+|   4032: 55 41 4c 20 54 41 42 4c 45 20 74 31 20 55 53 49   UAL TABLE t1 USI
+|   4048: 4e 47 20 66 74 73 35 28 61 2c 62 20 75 6e 69 6e   NG fts5(a,b unin
+|   4064: 64 65 78 65 64 2c 63 2c 74 6f 6b 65 6e 69 7a 65   dexed,c,tokenize
+|   4080: 3d 22 70 6f 72 74 65 72 20 61 73 63 69 69 22 29   =.porter ascii.)
+| page 2 offset 4096
+|      0: 0d 0f 68 00 05 0f 13 00 0f e6 0f 13 0f a8 0f 7c   ..h............|
+|     16: 0f 2a 00 00 00 00 00 00 00 00 00 00 00 00 00 00   .*..............
+|   3856: 00 00 00 15 0a 03 00 30 00 00 00 00 01 03 03 00   .......0........
+|   3872: 03 01 01 01 02 01 01 03 01 01 37 8c 80 80 80 80   ..........7.....
+|   3888: 01 03 00 74 00 00 00 2e 02 30 61 03 02 02 01 01   ...t.....0a.....
+|   3904: 62 03 02 03 01 01 63 03 02 04 01 01 67 03 06 01   b.....c.....g...
+|   3920: 02 02 01 01 68 03 06 01 02 03 01 01 69 03 06 01   ....h.......i...
+|   3936: 02 04 04 06 06 06 08 08 0f ef 00 14 2a 00 00 00   ............*...
+|   3952: 00 01 02 02 00 02 01 01 01 02 01 01 25 88 80 80   ............%...
+|   3968: 80 80 01 03 00 50 00 00 00 1f 02 30 67 02 08 02   .....P.....0g...
+|   3984: 01 02 02 01 01 68 02 08 03 01 02 03 01 01 69 02   .....h........i.
+|   4000: 08 04 01 02 04 04 09 09 37 84 80 80 80 80 01 03   ........7.......
+|   4016: 00 74 00 00 00 2e 02 30 61 01 02 02 01 01 62 01   .t.....0a.....b.
+|   4032: 02 03 01 01 63 01 02 04 01 01 67 01 06 01 02 02   ....c.....g.....
+|   4048: 01 01 68 01 06 01 02 03 01 01 69 01 06 01 02 04   ..h.......i.....
+|   4064: 04 06 06 06 08 08 07 01 03 00 14 03 09 00 09 00   ................
+|   4080: 00 00 11 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 3 offset 8192
+|      0: 0a 00 00 00 03 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 00 06 04 01 0c   ................
+|   4080: 01 03 02 06 04 01 0c 01 02 02 05 04 09 0c 01 02   ................
+| page 4 offset 12288
+|      0: 0d 00 00 00 03 0f be 00 0f ea 0f d4 0f be 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 14 03   ................
+|   4032: 05 00 17 17 17 61 20 62 20 63 67 20 68 20 69 67   .....a b cg h ig
+|   4048: 20 68 20 69 14 02 05 00 17 17 17 67 20 68 20 69    h i.......g h i
+|   4064: 61 20 62 20 63 67 20 68 20 69 14 01 05 00 17 17   a b cg h i......
+|   4080: 17 61 20 62 20 63 64 20 65 20 66 67 20 68 20 69   .a b cd e fg h i
+| page 5 offset 16384
+|      0: 0d 00 00 00 03 0f e8 00 0f f8 0f f0 0f e8 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 06 03 03 00 12 03 00 03   ................
+|   4080: 06 02 03 00 12 03 00 03 06 01 03 00 12 03 00 03   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 01 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 7 offset 24576
+|      0: 0d 00 00 00 03 0f 9e 00 0f e6 0f ef 00 00 00 00   ................
+|   3984: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 41 84   ..............A.
+|   4000: 80 80 80 80 01 04 00 81 06 00 00 00 34 02 30 61   ............4.0a
+|   4016: 01 01 01 01 01 62 01 01 01 01 01 63 01 01 01 01   .....b.....c....
+|   4032: 01 64 01 01 01 65 01 01 01 66 01 01 01 67 01 01   .d...e...f...g..
+|   4048: 01 01 01 68 01 01 01 01 01 69 01 01 01 04 06 06   ...h.....i......
+|   4064: 06 04 04 04 06 06 07 01 03 00 14 03 09 09 09 0f   ................
+|   4080: 0a 03 00 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 8 offset 28672
+|      0: 0a 00 00 00 01 0f fa 00 00 00 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 12   ................
+| page 9 offset 32768
+|      0: 0d 00 00 00 03 0f be 00 0f ea 0f d4 0f be 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 14 03   ................
+|   4032: 05 00 17 17 17 61 20 62 20 63 67 20 68 20 69 67   .....a b cg h ig
+|   4048: 20 68 20 69 14 02 05 00 17 17 17 67 20 68 20 69    h i.......g h i
+|   4064: 61 20 62 20 63 67 20 68 20 69 14 01 05 00 17 17   a b cg h i......
+|   4080: 17 61 20 62 20 63 64 20 65 20 66 67 20 68 20 69   .a b cd e fg h i
+| page 10 offset 36864
+|      0: 0a 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 00 00 00 00   ........vers....
+| end crash-f928a9c1ec68dd.db
+}]} {}
+
+do_catchsql_test 80.1 {
+SELECT snippet(rowid, -1, '.', '..', '[', '(]'),snippet(rowid, -1, '.', '.', '', '(]'), highlight(t1, 29, 1 , '') FROM t1('g+ h') WHERE rank MATCH 'bm25(1.0, 10)' ORDER BY NOT (SELECT 1 FROM t1('g+ æ') WHERE rank MATCH 'bm25(1.0, 10)' ORDER BY rank);
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 81.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 40960 pagesize 4096 filename crash-44e8035a976422.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 0a   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 0d 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 00 00 00 0d 0b 6e 00 0f a3 0f 4c   ..........n....L
+|    112: 0e e1 0e 81 0e 24 0d cc 0d 72 0d 1b 0c b0 0c 50   .....$...r.....P
+|    128: 0b f8 0b b3 0b 6e 00 00 00 00 00 00 00 00 00 00   .....n..........
+|   2912: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 43 0d   ..............C.
+|   2928: 06 17 11 11 08 75 74 61 62 6c 65 74 34 74 34 43   .....utablet4t4C
+|   2944: 52 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41   REATE VIRTUAL TA
+|   2960: 42 4c 45 20 74 34 20 55 53 49 4e 47 20 66 74 73   BLE t4 USING fts
+|   2976: 35 76 6f 63 61 62 28 27 74 32 27 2c 20 27 72 6f   5vocab('t2', 'ro
+|   2992: 77 27 29 43 0c 06 17 11 11 08 75 74 61 62 6c 65   w')C......utable
+|   3008: 74 33 74 33 43 52 45 41 54 45 20 56 49 52 54 55   t3t3CREATE VIRTU
+|   3024: 41 4c 20 54 41 42 4c 45 20 74 33 20 55 53 49 4e   AL TABLE t3 USIN
+|   3040: 47 20 66 74 73 35 76 6f 63 61 62 28 27 74 31 27   G fts5vocab('t1'
+|   3056: 2c 20 27 72 6f 77 27 29 56 0b 06 17 1f 1f 01 7d   , 'row')V.......
+|   3072: 74 61 62 6c 65 74 32 5f 63 6f 6e 66 69 67 74 32   tablet2_configt2
+|   3088: 5f 63 6f 6e 66 69 67 0a 43 52 45 41 54 45 20 54   _config.CREATE T
+|   3104: 41 42 4c 45 20 27 74 32 5f 63 6f 6e 66 69 67 27   ABLE 't2_config'
+|   3120: 28 6b 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   (k PRIMARY KEY, 
+|   3136: 76 29 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44   v) WITHOUT ROWID
+|   3152: 5e 0a 07 17 21 21 01 81 07 74 61 62 6c 65 74 32   ^...!!...tablet2
+|   3168: 5f 63 6f 6e 74 65 6e 74 74 32 5f 63 6f 6e 74 65   _contentt2_conte
+|   3184: 6e 74 09 43 52 45 41 54 45 20 54 41 42 4c 45 20   nt.CREATE TABLE 
+|   3200: 27 74 32 5f 63 6f 6e 74 65 6e 74 27 28 69 64 20   't2_content'(id 
+|   3216: 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59 20   INTEGER PRIMARY 
+|   3232: 4b 45 59 2c 20 63 30 2c 20 63 31 2c 20 63 32 29   KEY, c0, c1, c2)
+|   3248: 69 09 07 17 19 19 01 81 2d 74 61 62 6c 65 74 32   i.......-tablet2
+|   3264: 5f 69 64 78 74 32 5f 69 64 78 08 43 52 45 41 54   _idxt2_idx.CREAT
+|   3280: 45 20 54 41 42 4c 45 20 27 74 32 5f 69 64 78 27   E TABLE 't2_idx'
+|   3296: 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20 70 67   (segid, term, pg
+|   3312: 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45 59 28   no, PRIMARY KEY(
+|   3328: 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20 57 49   segid, term)) WI
+|   3344: 54 48 4f 55 54 20 52 4f 57 49 44 55 08 07 17 1b   THOUT ROWIDU....
+|   3360: 1b 01 81 01 74 61 62 6c 65 74 32 5f 64 61 74 61   ....tablet2_data
+|   3376: 74 32 5f 64 61 74 61 07 43 52 45 41 54 45 20 54   t2_data.CREATE T
+|   3392: 41 42 4c 45 20 27 74 32 5f 64 61 74 61 27 28 69   ABLE 't2_data'(i
+|   3408: 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52   d INTEGER PRIMAR
+|   3424: 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c 4f   Y KEY, block BLO
+|   3440: 42 29 58 07 07 17 11 11 08 81 1d 74 61 62 6c 65   B)X........table
+|   3456: 74 32 74 32 43 52 45 41 54 45 20 56 49 52 54 55   t2t2CREATE VIRTU
+|   3472: 41 4c 20 54 41 42 4c 45 20 74 32 20 55 53 49 4e   AL TABLE t2 USIN
+|   3488: 47 20 66 74 73 35 28 27 61 27 2c 5b 62 5d 2c 22   G fts5('a',[b],.
+|   3504: 63 22 2c 64 65 74 61 69 6c 3d 6e 6f 6e 65 2c 63   c.,detail=none,c
+|   3520: 6f 6c 75 6d 6e 73 69 7a 65 3d 30 29 56 06 06 17   olumnsize=0)V...
+|   3536: 1f 1f 01 7d 74 61 62 6c 65 74 31 5f 63 6f 6e 66   ....tablet1_conf
+|   3552: 69 67 74 31 5f 63 6f 6e 66 69 67 06 43 52 45 41   igt1_config.CREA
+|   3568: 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63 6f 6e   TE TABLE 't1_con
+|   3584: 66 69 67 27 28 6b 20 50 52 49 4d 41 52 59 20 4b   fig'(k PRIMARY K
+|   3600: 45 59 2c 20 76 29 20 57 49 54 48 4f 55 54 20 52   EY, v) WITHOUT R
+|   3616: 4f 57 49 44 5b 05 07 17 21 21 01 81 01 74 61 62   OWID[...!!...tab
+|   3632: 6c 65 74 31 5f 64 6f 63 73 69 7a 65 74 31 5f 64   let1_docsizet1_d
+|   3648: 6f 63 73 69 7a 65 05 43 52 45 41 54 45 20 54 41   ocsize.CREATE TA
+|   3664: 42 4c 45 20 27 74 31 5f 64 6f 63 73 69 7a 65 27   BLE 't1_docsize'
+|   3680: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   (id INTEGER PRIM
+|   3696: 41 52 59 20 4b 45 59 2c 20 73 7a 20 42 4c 4f 42   ARY KEY, sz BLOB
+|   3712: 29 5e 04 07 17 21 21 01 81 07 74 61 62 6c 65 74   )^...!!...tablet
+|   3728: 31 5f 63 6f 6e 74 65 6e 74 74 31 5f 63 6f 6e 74   1_contentt1_cont
+|   3744: 65 6e 74 04 43 52 45 41 54 45 20 54 41 42 4c 45   ent.CREATE TABLE
+|   3760: 20 27 74 31 5f 63 6f 6e 74 65 6e 74 27 28 69 64    't1_content'(id
+|   3776: 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59    INTEGER PRIMARY
+|   3792: 20 4b 45 59 2c 20 63 30 2c 20 63 31 2c 20 63 32    KEY, c0, c1, c2
+|   3808: 29 69 03 07 17 19 19 01 81 2d 74 61 62 6c 65 74   )i.......-tablet
+|   3824: 31 5f 69 64 78 74 31 5f 69 64 78 03 43 52 45 41   1_idxt1_idx.CREA
+|   3840: 54 45 20 54 41 42 4c 45 20 27 74 31 5f 69 64 78   TE TABLE 't1_idx
+|   3856: 27 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20 70   '(segid, term, p
+|   3872: 67 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45 59   gno, PRIMARY KEY
+|   3888: 28 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20 57   (segid, term)) W
+|   3904: 49 54 48 4f 55 54 20 52 4f 57 49 44 55 02 07 17   ITHOUT ROWIDU...
+|   3920: 1b 1b 01 81 01 74 61 62 6c 65 74 31 5f 64 61 74   .....tablet1_dat
+|   3936: 61 74 31 5f 64 61 74 61 02 43 52 45 41 54 45 20   at1_data.CREATE 
+|   3952: 54 41 42 4c 45 20 27 74 31 5f 64 61 74 61 27 28   TABLE 't1_data'(
+|   3968: 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41   id INTEGER PRIMA
+|   3984: 52 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c   RY KEY, block BL
+|   4000: 4f 42 29 5b 01 07 17 11 11 08 81 23 74 61 62 6c   OB)[.......#tabl
+|   4016: 65 74 31 74 31 43 52 45 41 54 45 20 56 49 52 54   et1t1CREATE VIRT
+|   4032: 55 41 4c 20 54 41 42 4c 45 20 74 31 20 55 53 49   UAL TABLE t1 USI
+|   4048: 4e 47 20 66 74 73 35 28 61 2c 62 20 75 6e 69 6e   NG fts5(a,b unin
+|   4064: 64 65 78 65 64 2c 63 2c 74 6f 6b 65 6e 69 7a 65   dexed,c,tokenize
+|   4080: 3d 22 70 6f 72 74 65 72 20 61 73 63 69 69 22 29   =.porter ascii.)
+| page 2 offset 4096
+|      0: 0d 0f 68 00 05 0f 13 00 0f e6 0f 13 0f a8 0f 7c   ..h............|
+|     16: 0f 2a 00 00 00 00 00 00 00 00 00 00 00 00 00 00   .*..............
+|   3856: 00 00 00 15 0a 03 00 30 00 00 00 00 01 03 03 00   .......0........
+|   3872: 03 01 01 01 02 01 01 03 01 01 37 8c 80 80 80 80   ..........7.....
+|   3888: 01 03 00 74 00 00 00 2e 02 30 61 03 02 02 01 01   ...t.....0a.....
+|   3904: 62 03 02 03 01 01 63 03 02 04 01 01 67 03 06 01   b.....c.....g...
+|   3920: 02 02 01 01 68 03 06 01 02 03 01 01 69 03 06 01   ....h.......i...
+|   3936: 02 04 04 06 06 06 08 08 0f ef 00 14 2a 00 00 00   ............*...
+|   3952: 00 01 02 02 00 02 01 01 01 02 01 01 25 88 80 80   ............%...
+|   3968: 80 80 01 03 00 50 00 00 00 1f 02 30 67 02 08 02   .....P.....0g...
+|   3984: 01 02 02 01 01 68 02 08 03 8d 02 03 01 01 6a 42   .....h........jB
+|   4000: 08 04 01 02 04 04 09 09 37 84 80 80 80 80 01 03   ........7.......
+|   4016: 00 74 00 00 00 2e 02 30 61 01 12 02 01 01 62 01   .t.....0a.....b.
+|   4032: 02 03 01 01 63 01 02 04 01 01 67 01 06 01 02 02   ....c.....g.....
+|   4048: 01 01 68 01 05 01 02 03 01 01 69 01 06 01 02 04   ..h.......i.....
+|   4064: 04 06 06 06 08 08 07 01 03 00 14 03 09 00 09 00   ................
+|   4080: 00 00 11 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 3 offset 8192
+|      0: 0a 00 00 00 03 0f ec 00 0f fa 0f f3 0f ec 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 00 06 04 01 0c   ................
+|   4080: 01 03 02 06 04 01 0c 01 02 02 05 04 09 0c 01 02   ................
+| page 4 offset 12288
+|      0: 0d 00 00 00 03 0f be 00 0f ea 00 00 00 00 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 14 03   ................
+|   4032: 05 00 17 17 17 61 20 62 20 63 67 20 68 20 69 67   .....a b cg h ig
+|   4048: 20 68 20 69 14 02 05 00 17 17 17 67 20 68 20 69    h i.......g h i
+|   4064: 61 20 62 20 63 67 20 68 20 69 14 01 05 00 17 17   a b cg h i......
+|   4080: 17 61 20 62 20 63 64 20 65 20 66 67 20 68 20 69   .a b cd e fg h i
+| page 5 offset 16384
+|      0: 0d 00 00 00 03 0f e8 00 0f f8 0f f0 0f e8 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 06 03 03 00 12 03 00 03   ................
+|   4080: 06 02 03 00 12 03 00 03 06 01 03 00 12 03 00 03   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 7 offset 24576
+|      0: 0d 00 00 00 03 0f 9e 00 0f e6 0f ef 0f 9e 00 00   ................
+|   3984: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 41 84   ..............A.
+|   4000: 80 80 80 80 01 04 00 81 06 00 00 00 34 02 30 61   ............4.0a
+|   4016: 01 01 01 01 01 62 01 01 01 01 01 63 01 01 01 01   .....b.....c....
+|   4032: e6 64 01 01 01 65 01 01 01 66 01 01 01 67 01 01   .d...e...f...g..
+|   4048: 01 01 01 68 01 01 01 01 01 69 01 01 01 04 06 06   ...h.....i......
+|   4064: 06 04 04 04 06 06 07 01 03 00 14 03 09 09 09 0f   ................
+|   4080: 0a 03 00 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 8 offset 28672
+|      0: 0a 00 00 00 01 0f fa 00 0f fa 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
+| page 9 offset 32768
+|      0: 0d 00 00 00 03 0f be 00 0f ea 0f d4 0f be 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 14 03   ................
+|   4032: 05 00 17 17 17 61 20 62 20 63 67 20 68 20 69 67   .....a b cg h ig
+|   4048: 20 68 21 69 14 02 05 00 17 17 17 67 20 68 20 69    h!i.......g h i
+|   4064: 61 20 62 20 63 67 20 68 20 69 14 01 05 00 17 17   a b cg h i......
+|   4080: 17 61 20 62 20 63 64 20 65 20 66 67 20 68 20 69   .a b cd e fg h i
+| page 10 offset 36864
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| end crash-44e8035a976422.db
+}]} {}
+
+do_catchsql_test 81.2 {
+  UPDATE t1 SET b=zeroblob(299);
+} {1 {database disk image is malformed}}
+
+
+sqlite3_fts5_may_be_corrupt 0
+finish_test
+
diff --git a/ext/fts5/test/fts5corrupt4.test b/ext/fts5/test/fts5corrupt4.test
new file mode 100644
index 0000000000000000000000000000000000000000..0505250c2f857e5903c9238cd237b7c64fd1e822
--- /dev/null
+++ b/ext/fts5/test/fts5corrupt4.test
@@ -0,0 +1,63 @@
+# 2019 May 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5corrupt4
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+sqlite3_fts5_may_be_corrupt 1
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE ttt USING fts5(a, b); 
+  INSERT INTO ttt 
+     VALUES('e ee eee e ee eee e ee eee', 'eee ee e e e ee eee ee ee');
+  INSERT INTO ttt SELECT a||a, b||b FROM ttt;   
+  INSERT INTO ttt SELECT a||a, b||b FROM ttt;   
+}
+
+expr srand(1)
+
+proc mutate {blob i} {
+  set o [expr {$i % [string length $blob]}]
+  set a [string range $blob 0 $o-1]
+  set b [string range $blob $o+1 end]
+  set v [expr int(rand()*255) - 127]
+  return "$a[binary format c $v]$b"
+}
+db func mutate mutate
+
+for {set j 1000} {$j <= 5000} {incr j 1000} {
+  do_test 1.$j {
+    for {set i 0} {$i < 1000} {incr i} {
+      execsql {
+        BEGIN;
+          UPDATE ttt_data SET block = mutate(block, $i) WHERE id>10;
+      }
+      foreach sql {
+        {SELECT snippet(ttt, -1, '.', '..', '[', ']'), * FROM ttt('e*')}
+        {SELECT snippet(ttt, -1, '.', '..', '[', ']'), * FROM ttt('e* NOT ee*')}
+      } {
+        catch { execsql $sql }
+      }
+      execsql ROLLBACK
+    }
+  } {}
+}
+
+sqlite3_fts5_may_be_corrupt 0
+finish_test
+
diff --git a/ext/fts5/test/fts5corrupt5.test b/ext/fts5/test/fts5corrupt5.test
new file mode 100644
index 0000000000000000000000000000000000000000..19f0538418d6d32a40c3d190927746ce0fa3dcc9
--- /dev/null
+++ b/ext/fts5/test/fts5corrupt5.test
@@ -0,0 +1,1456 @@
+# 2015 Apr 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file tests that FTS5 handles corrupt databases (i.e. internal
+# inconsistencies in the backing tables) correctly. In this case 
+# "correctly" means without crashing.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5corrupt5
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+sqlite3_fts5_may_be_corrupt 1
+database_may_be_corrupt
+
+#-------------------------------------------------------------------------
+# dbsqlfuzz crash-0f47112aa7520cf08c6a835a88fdff8c2a32a188
+#
+reset_db
+do_test 1.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 24576 pagesize 4096 filename crash-0f47112aa7520c.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 00   .....@  ........
+|     96: 00 00 00 00 0d 00 00 00 06 0e 0f 00 0f aa 0f 53   ...............S
+|    112: 0e e8 0e 8b 0e 33 0e 0f 00 00 00 00 00 00 00 00   .....3..........
+|   3584: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 22   ................
+|   3600: 06 06 17 11 11 01 31 74 61 62 6c 65 62 62 62 62   ......1tablebbbb
+|   3616: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 62 62   .CREATE TABLE bb
+|   3632: 28 61 29 56 05 06 17 1f 1f 01 7d 74 61 62 6c 65   (a)V.......table
+|   3648: 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63 6f 6e 66   t1_configt1_conf
+|   3664: 69 67 05 43 52 45 41 54 45 20 54 41 42 4c 45 20   ig.CREATE TABLE 
+|   3680: 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b 20 50 52   't1_config'(k PR
+|   3696: 49 4d 41 52 59 20 4b 45 59 2c 20 76 29 20 57 49   IMARY KEY, v) WI
+|   3712: 54 48 4f 55 54 20 52 4f 57 49 44 5b 04 07 17 21   THOUT ROWID[...!
+|   3728: 21 01 81 01 74 61 62 6c 65 74 31 5f 64 6f 63 73   !...tablet1_docs
+|   3744: 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65 04 43 52   izet1_docsize.CR
+|   3760: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 64   EATE TABLE 't1_d
+|   3776: 6f 63 73 69 7a 65 27 28 69 64 20 49 4e 54 45 47   ocsize'(id INTEG
+|   3792: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
+|   3808: 73 7a 20 42 4c 4f 42 29 69 03 07 17 19 19 01 81   sz BLOB)i.......
+|   3824: 2d 74 61 62 6c 65 74 31 5f 69 64 78 74 31 5f 69   -tablet1_idxt1_i
+|   3840: 64 78 03 43 52 45 41 54 45 20 54 41 42 4c 45 20   dx.CREATE TABLE 
+|   3856: 27 74 31 5f 69 64 78 27 28 73 65 67 69 64 2c 20   't1_idx'(segid, 
+|   3872: 74 65 72 6d 2c 20 70 67 6e 6f 2c 20 50 52 49 4d   term, pgno, PRIM
+|   3888: 41 52 59 20 4b 45 59 28 73 65 67 69 64 2c 20 74   ARY KEY(segid, t
+|   3904: 65 72 6d 29 29 20 57 49 54 48 4f 55 54 20 52 4f   erm)) WITHOUT RO
+|   3920: 57 49 44 55 02 07 17 1b 1b 01 81 01 74 61 62 6c   WIDU........tabl
+|   3936: 65 74 31 5f 64 61 74 61 74 31 5f 64 61 74 61 02   et1_datat1_data.
+|   3952: 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74 31   CREATE TABLE 't1
+|   3968: 5f 64 61 74 61 27 28 69 64 20 49 4e 54 45 47 45   _data'(id INTEGE
+|   3984: 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 62   R PRIMARY KEY, b
+|   4000: 6c 6f 63 6b 20 42 4c 4f 42 29 54 01 07 17 11 11   lock BLOB)T.....
+|   4016: 08 81 15 74 61 62 6c 65 74 31 74 31 43 52 45 41   ...tablet1t1CREA
+|   4032: 54 45 20 56 49 52 54 55 41 4c 20 54 41 42 4c 45   TE VIRTUAL TABLE
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+|   4080: 2c 34 22 2c 20 63 6f 6e 74 65 6e 74 3d 22 22 29   ,4., content=..)
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+| page 3 offset 8192
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+| page 4 offset 12288
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 05 03 03 00 10   ................
+|   4080: 03 05 05 02 03 00 10 04 06 05 01 03 00 10 04 04   ................
+| page 5 offset 16384
+|      0: 0a 00 00 00 02 0f eb 00 0f eb 0f f4 00 00 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 08 03 15 01 70   ...............p
+|   4080: 67 73 7a 18 0b 03 1b 01 76 65 72 73 69 6f 6e 04   gsz.....version.
+| page 6 offset 20480
+|      0: 0d 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4080: 00 00 03 03 02 01 03 03 02 02 01 00 00 00 00 00   ................
+| end crash-0f47112aa7520c.db
+  }]
+} {}
+
+do_catchsql_test 1.1 {
+  SELECT * FROM t1('R*') WHERE (a,b)<=(current_date,0) ORDER BY rowid DESC;
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_test 2.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+
+.open --hexdb
+| size 24576 pagesize 4096 filename sql047467.txt.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 00   .....@  ........
+|     96: 00 00 00 00 0d 00 00 00 06 0e 0f 00 0f aa 0f 53   ...............S
+|    112: 0e e8 0e 8b 0e 33 0e 0f 01 00 00 00 00 00 00 00   .....3..........
+|   3584: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 22   ................
+|   3600: 06 06 17 11 11 01 31 74 61 62 6c 65 62 62 62 62   ......1tablebbbb
+|   3616: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 62 62   .CREATE TABLE bb
+|   3632: 28 61 29 56 05 06 17 1f 1f 01 7d 74 61 62 6c 65   (a)V.......table
+|   3648: 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63 6f 6e 66   t1_configt1_conf
+|   3664: 69 67 05 43 52 45 41 54 45 20 54 41 42 4c 45 20   ig.CREATE TABLE 
+|   3680: 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b 20 50 52   't1_config'(k PR
+|   3696: 49 4d 41 52 59 20 4b 45 59 2c 20 76 29 20 57 49   IMARY KEY, v) WI
+|   3712: 54 48 4f 55 54 20 52 4f 57 49 44 5b 04 07 17 21   THOUT ROWID[...!
+|   3728: 21 01 81 01 74 61 62 6c 65 74 31 5f 64 6f 63 73   !...tablet1_docs
+|   3744: 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65 04 43 52   izet1_docsize.CR
+|   3760: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 64   EATE TABLE 't1_d
+|   3776: 6f 63 73 69 7a 65 27 28 69 64 20 49 4e 54 45 47   ocsize'(id INTEG
+|   3792: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
+|   3808: 73 7a 20 42 4c 4f 42 29 69 03 07 17 19 19 01 81   sz BLOB)i.......
+|   3824: 2d 74 61 62 6c 65 74 31 5f 69 64 78 74 31 5f 69   -tablet1_idxt1_i
+|   3840: 64 78 03 43 52 45 41 54 45 20 54 41 42 4c 45 20   dx.CREATE TABLE 
+|   3856: 27 74 31 5f 69 64 78 27 28 73 65 67 69 64 2c 20   't1_idx'(segid, 
+|   3872: 74 65 72 6d 2c 20 70 67 6e 6f 2c 20 50 52 49 4d   term, pgno, PRIM
+|   3888: 41 52 59 20 4b 45 59 28 73 65 67 69 64 2c 20 74   ARY KEY(segid, t
+|   3904: 65 72 6d 29 29 20 57 49 54 48 4f 55 54 20 52 4f   erm)) WITHOUT RO
+|   3920: 57 49 44 55 02 07 17 1b 1b 01 81 01 74 61 62 6c   WIDU........tabl
+|   3936: 65 74 31 5f 64 61 74 61 74 31 5f 64 61 74 61 02   et1_datat1_data.
+|   3952: 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74 31   CREATE TABLE 't1
+|   3968: 5f 64 61 74 61 27 28 69 64 20 49 4e 54 45 47 45   _data'(id INTEGE
+|   3984: 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 62   R PRIMARY KEY, b
+|   4000: 6c 6f 63 6b 20 42 4c 4f 42 29 54 01 07 17 11 11   lock BLOB)T.....
+|   4016: 08 81 15 74 61 62 6c 65 74 31 74 31 43 52 45 41   ...tablet1t1CREA
+|   4032: 54 45 20 56 49 52 54 55 41 4c 20 54 41 42 4c 45   TE VIRTUAL TABLE
+|   4048: 20 74 31 20 55 53 49 4e 47 20 66 74 73 35 28 61    t1 USING fts5(a
+|   4064: 2c 62 2c 70 72 65 66 69 78 3d 22 31 2c 32 2c 33   ,b,prefix=.1,2,3
+|   4080: 2c 34 22 2c 20 63 6f 6e 74 65 6e 74 3d 22 22 29   ,4., content=..)
+| page 2 offset 4096
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+|     32: 0e 8e 0e 6c 0e 4b 0e 29 0e 08 0d e6 0d c4 0d b5   ...l.K.)........
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+|   2784: f6 01 01 04 01 05 77 68 65 72 65 03 02 04 0a 15   ......where.....
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+|   3152: 01 05 04 09 18 88 80 80 80 80 0b 03 00 36 00 00   .............6..
+|   3168: 00 13 02 03 32 61 72 02 02 03 01 02 62 65 02 02   ....2ar.....be..
+|   3184: 04 05 07 1b 88 80 80 80 80 0a 03 00 3c 00 94 50   ............<..P
+|   3200: 16 02 31 74 02 08 02 01 01 07 00 03 32 61 6e 02   ..1t........2an.
+|   3216: 06 01 01 04 09 19 88 80 80 80 80 09 03 00 38 00   ..............8.
+|   3232: 00 00 14 02 31 6e 02 06 01 01 03 01 01 72 02 06   ....1n.......r..
+|   3248: 01 01 05 04 08 17 88 80 80 80 80 08 03 00 34 00   ..............4.
+|   3264: 00 00 12 02 31 62 02 02 04 01 01 69 02 06 01 01   ....1b.....i....
+|   3280: 06 04 06 19 88 80 80 80 80 07 03 00 38 00 00 00   ............8...
+|   3296: 14 04 02 31 32 02 02 05 01 01 61 02 08 03 01 01   ...12.....a.....
+|   3312: 02 05 06 1b 88 80 80 80 80 06 03 00 3c 00 00 00   ............<...
+|   3328: 16 06 30 74 68 65 72 65 02 02 02 00 02 31 31 02   ..0there.....11.
+|   3344: 06 01 01 04 0a 15 88 80 80 80 80 05 03 00 30 00   ..............0.
+|   3360: 00 00 11 01 01 05 04 30 74 68 65 02 06 01 01 07   .......0the.....
+|   3376: 07 1c 88 80 80 80 80 04 03 00 3e 00 00 00 17 01   ..........>.....
+|   3392: 01 06 02 30 6e 02 06 01 01 03 01 04 72 6f 77 73   ...0n.......rows
+|   3408: 02 06 07 08 1b 88 80 80 80 80 03 03 00 3c 00 00   .............<..
+|   3424: 00 16 08 30 62 65 74 77 65 65 6e 02 02 04 01 02   ...0between.....
+|   3440: 69 6e 02 06 04 0c 1a 88 80 80 80 80 02 03 00 3a   in.............:
+|   3456: 00 00 00 15 04 30 61 6e 64 02 06 01 01 02 02 02   .....0and.......
+|   3472: 72 65 02 02 03 04 0a 17 88 80 80 80 80 01 03 00   re..............
+|   3488: 34 00 00 00 12 02 30 31 02 06 01 01 04 01 01 32   4.....01.......2
+|   3504: 02 02 05 04 08 08 84 80 80 80 80 12 03 00 16 00   ................
+|   3520: 00 00 05 04 1b 84 80 80 80 80 11 03 00 3c 00 00   .............<..
+|   3536: 00 16 05 34 74 61 62 6c 01 06 01 01 05 02 03 65   ...4tabl.......e
+|   3552: 72 6d 01 02 04 0b 1b 84 80 80 80 80 10 03 00 3c   rm.............<
+|   3568: 00 00 00 16 05 34 65 61 63 68 01 02 03 01 04 70   .....4each.....p
+|   3584: 72 65 73 01 02 05 04 08 1a 84 80 80 80 80 0f 03   res.............
+|   3600: 00 3a 00 00 00 15 04 33 74 65 72 01 02 04 02 02   .:.....3ter.....
+|   3616: 68 65 01 06 01 01 03 04 08 1b 84 80 80 80 80 0e   he..............
+|   3632: 03 00 3c 00 00 00 16 04 33 80 72 65 01 02 05 01   ..<.....3.re....
+|   3648: 03 74 61 62 01 06 01 01 05 04 08 1a 84 80 80 80   .tab............
+|   3664: 80 0d 03 00 3a 00 00 00 15 04 33 66 6f 72 01 02   ....:.....3for..
+|   3680: 02 02 02 74 73 01 06 01 01 04 04 08 1b 84 80 80   ...ts...........
+|   3696: 80 80 0c 03 00 3c 00 00 00 17 03 32 74 68 01 06   .....<.....2th..
+|   3712: 01 01 03 00 04 33 65 61 63 01 02 03 04 09 18 84   .....3eac.......
+|   3728: 80 80 80 80 0b 03 00 36 00 00 00 13 03 32 74 61   .......6.....2ta
+|   3744: 01 06 01 01 05 02 01 65 01 02 04 04 09 19 84 80   .......e........
+|   3760: 80 80 80 0a 03 00 38 00 00 00 14 03 32 69 6e 01   ......8.....2in.
+|   3776: 06 01 01 02 01 02 70 72 01 02 05 04 09 18 84 80   ......pr........
+|   3792: 80 80 80 09 03 00 36 00 00 00 13 03 32 66 6f 01   ......6.....2fo.
+|   3808: 02 02 02 01 74 01 06 01 01 04 04 07 1b 84 80 80   ....t...........
+|   3824: 80 80 08 03 00 3c 00 00 00 16 02 31 74 01 0a 04   .....<.....1t...
+|   3840: 01 01 03 04 00 03 32 65 61 01 02 03 04 0a 17 84   ......2ea.......
+|   3856: 80 80 80 80 07 03 00 34 00 00 00 12 02 31 69 01   .......4.....1i.
+|   3872: 06 01 01 02 01 01 70 01 02 05 04 08 18 84 80 80   ......p.........
+|   3888: 80 80 06 03 00 36 00 00 00 13 02 31 65 01 02 03   .....6.....1e...
+|   3904: 01 01 66 01 08 02 01 01 04 04 06 1b 84 80 80 80   ..f.............
+|   3920: 80 05 03 00 3c 00 00 00 16 05 30 74 65 72 6d 01   ....<.....0term.
+|   3936: 02 04 02 02 68 65 01 06 01 01 03 04 09 14 84 80   ....he..........
+|   3952: 80 80 80 04 03 00 2e 00 00 00 10 06 30 64 61 62   ............0dab
+|   3968: 6c 65 01 06 01 01 05 04 15 84 80 80 80 80 03 03   le..............
+|   3984: 00 30 00 00 00 11 02 08 30 70 72 65 73 65 6e 74   .0......0present
+|   4000: 01 02 05 05 1b 84 80 80 80 80 02 03 00 3c 00 00   .............<..
+|   4016: 00 16 04 30 66 74 73 01 06 01 01 04 01 02 69 6e   ...0fts.......in
+|   4032: 01 06 01 01 04 0a 1a 84 80 80 80 80 01 03 00 3a   ...............:
+|   4048: 00 00 00 15 05 30 65 61 63 68 01 02 03 01 13 66   .....0each.....f
+|   4064: 6f 72 01 02 02 04 09 06 01 03 00 12 03 0b 0f 00   or..............
+|   4080: 00 08 8c 80 80 80 80 11 03 00 16 00 00 00 05 04   ................
+| page 3 offset 8192
+|      0: 0a 00 00 00 32 0e 4f 00 0f fa 0f f1 0f e9 0f e1   ....2.O.........
+|     16: 0f d8 0f d1 0f c9 0f c1 0f b9 0f b1 0f a9 0f a0   ................
+|     32: 0f 98 0f 90 0f 87 0f 80 0f 78 0f 71 0f 68 0f 5f   .........x.q.h._
+|     48: 0f 56 0f 4d 0f 41 0f 38 0f 2f 0f 26 0f 1d 0f 13   .V.M.A.8./.&....
+|     64: 0f 0a 0f 01 0e f7 0e ee 0e e6 0e dd 0e d6 0e cd   ................
+|     80: 0e c3 0e ba 0e 00 00 00 00 00 00 00 00 00 00 00   ................
+|   3648: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08   ................
+|   3664: 04 01 10 01 03 34 74 20 07 04 01 0e 01 03 34 1e   .....4t ......4.
+|   3680: 09 04 01 12 01 03 33 74 68 1c 08 04 01 10 01 03   ......3th.......
+|   3696: 33 6e 1a 08 04 01 10 01 03 32 77 18 08 04 01 10   3n.......2w.....
+|   3712: 01 03 32 74 16 08 04 01 10 01 03 32 6e 14 07 04   ..2t.......2n...
+|   3728: 01 0e 01 03 32 12 08 04 01 10 01 03 31 74 10 08   ....2.......1t..
+|   3744: 04 01 10 01 03 31 6e 0e 07 04 01 0e 01 03 31 0c   .....1n.......1.
+|   3760: 09 04 01 12 01 03 30 74 68 0a 08 04 01 10 01 03   ......0th.......
+|   3776: 30 74 08 09 04 01 12 01 03 30 6e 75 06 08 04 01   0t.......0nu....
+|   3792: 10 01 03 30 6e 04 06 04 01 0c 01 03 02 08 04 01   ...0n...........
+|   3808: 10 01 02 34 72 22 07 04 01 0e 01 02 34 20 08 04   ...4r.......4 ..
+|   3824: 01 10 01 02 33 72 1e 09 04 01 12 01 02 33 61 72   ....3r.......3ar
+|   3840: 1c 08 04 01 10 01 02 32 74 1a 08 04 01 10 01 02   .......2t.......
+|   3856: 32 69 18 09 04 01 12 01 02 32 61 72 16 08 04 01   2i.......2ar....
+|   3872: 10 01 02 31 74 14 08 04 01 10 01 02 31 6e 12 08   ...1t.......1n..
+|   3888: 04 01 10 01 02 31 62 10 08 04 01 10 01 02 31 32   .....1b.......12
+|   3904: 0e 0b 04 01 16 01 02 30 74 68 65 72 0c 08 04 01   .......0ther....
+|   3920: 10 01 02 30 74 0a 08 04 01 10 01 02 30 6e 08 08   ...0t.......0n..
+|   3936: 14 01 10 01 02 30 62 06 08 04 01 10 01 02 30 61   .....0b.......0a
+|   3952: 04 06 04 01 0c 01 02 02 07 04 09 10 01 34 74 22   .............4t.
+|   3968: 06 04 09 0e 01 34 20 08 04 09 12 01 33 74 65 1e   .....4 .....3te.
+|   3984: 07 04 09 10 01 33 70 1c 07 04 09 10 01 33 66 1a   .....3p......3f.
+|   4000: 08 04 09 12 01 32 74 68 18 07 04 09 10 01 32 74   .....2th......2t
+|   4016: 16 01 64 09 10 01 32 69 14 07 04 09 10 01 32 66   ..d...2i......2f
+|   4032: 12 07 04 09 10 01 31 74 10 07 04 09 10 01 31 69   ......1t......1i
+|   4048: 0e 06 04 09 0e 01 31 0c 08 04 09 12 01 30 74 65   ......1......0te
+|   4064: 0a 06 04 09 10 01 30 74 08 07 04 09 10 01 30 70   ......0t......0p
+|   4080: 06 08 04 09 12 00 00 00 00 00 00 00 00 00 00 00   ................
+| page 4 offset 12288
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 05 03 03 00 10   ................
+|   4080: 03 05 05 02 03 00 10 04 06 05 01 03 00 10 04 04   ................
+| page 5 offset 16384
+|      0: 0a 00 00 00 02 0f eb 00 0f eb 0f f4 00 00 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 08 03 15 01 70   ...............p
+|   4080: 67 73 7a 18 0b 03 1b 01 76 65 72 73 69 6f 6e 04   gsz.....version.
+| page 6 offset 20480
+|      0: 0d 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4080: 00 00 03 03 02 01 03 03 02 02 01 00 00 00 00 00   ................
+| end sql047467.txt.db
+}]} {}
+
+do_catchsql_test 2.1 {
+SELECT * FROM t1('R*R*R*R*') WHERE (a,b)<=(current_date,0) ORDER BY rowid DESC;
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 3.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 32768 pagesize 4096 filename crash-c69fcaceff1e50.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 08   .....@  ........
+|     32: 00 00 00 02 00 00 00 01 00 00 00 09 00 00 00 04   ................
+|     96: 00 00 00 00 0d 0f c7 00 07 0d 92 00 0f 8d 0f 36   ...............6
+|    112: 0e cb 0e 6b 0e 0e 0d b6 0d 92 0d 92 00 00 00 00   ...k............
+|   3472: 00 00 22 08 06 17 11 11 01 31 74 61 62 6c 65 74   .........1tablet
+|   3488: 32 74 32 08 43 52 45 41 54 45 20 54 41 42 4c 45   2t2.CREATE TABLE
+|   3504: 20 74 32 28 78 29 56 07 06 17 1f 1f 01 7d 74 61    t2(x)V.......ta
+|   3520: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   blet1_configt1_c
+|   3536: 6f 6e 66 69 67 07 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
+|   3552: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
+|   3568: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
+|   3584: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 06    WITHOUT ROWID[.
+|   3600: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64   ..!!...tablet1_d
+|   3616: 6f 63 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65   ocsizet1_docsize
+|   3632: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
+|   3648: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
+|   3664: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
+|   3680: 59 2c 20 73 7a 20 42 4c 4f 42 29 5e 05 07 17 21   Y, sz BLOB)^...!
+|   3696: 21 01 81 07 74 61 62 6c 65 74 31 5f 63 6f 6e 74   !...tablet1_cont
+|   3712: 65 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 05 43 52   entt1_content.CR
+|   3728: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63   EATE TABLE 't1_c
+|   3744: 6f 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47   ontent'(id INTEG
+|   3760: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
+|   3776: 63 30 2c 20 63 31 2c 20 63 32 29 69 04 07 17 19   c0, c1, c2)i....
+|   3792: 19 01 81 2d 74 61 62 6c 65 74 31 5f 69 64 78 74   ...-tablet1_idxt
+|   3808: 31 5f 69 64 78 04 43 52 45 41 54 45 20 54 41 42   1_idx.CREATE TAB
+|   3824: 4c 45 20 27 74 31 5f 69 64 78 27 28 73 65 67 69   LE 't1_idx'(segi
+|   3840: 64 2c 20 74 65 72 6d 2c 20 70 67 6e 6f 2c 20 50   d, term, pgno, P
+|   3856: 52 49 4d 41 52 59 20 4b 45 59 28 73 65 67 69 64   RIMARY KEY(segid
+|   3872: 2c 20 74 65 72 6d 29 29 20 57 49 54 48 4f 55 54   , term)) WITHOUT
+|   3888: 20 52 4f 57 49 44 55 03 07 17 1b 1b 01 81 01 74    ROWIDU........t
+|   3904: 61 62 6c 65 74 31 5f 64 61 74 61 74 31 5f 64 61   ablet1_datat1_da
+|   3920: 74 61 03 43 52 45 41 54 45 20 54 41 42 4c 45 20   ta.CREATE TABLE 
+|   3936: 27 74 31 5f 64 61 74 61 27 28 69 64 20 49 4e 54   't1_data'(id INT
+|   3952: 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59   EGER PRIMARY KEY
+|   3968: 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42 29 38 02 06   , block BLOB)8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 35   LE t1 USING fts5
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 00 00 00 00 00 00   (a,b,c).........
+| page 3 offset 8192
+|      0: 0d 00 00 00 03 0c 94 00 0f e6 0f ef 0c 94 00 00   ................
+|   3216: 00 00 00 00 86 4a 84 80 80 80 80 01 04 00 8d 18   .....J..........
+|   3232: 00 00 01 bb 02 30 30 01 02 06 01 02 06 01 02 06   .....00.........
+|   3248: 1f 02 03 01 02 03 01 02 03 01 08 32 30 31 36 30   ...........20160
+|   3264: 36 30 39 01 02 07 01 02 07 01 02 07 01 01 34 01   609...........4.
+|   3280: 02 05 01 02 05 01 02 05 01 01 35 01 02 04 01 02   ..........5.....
+|   3296: 04 01 02 04 02 07 30 30 30 30 30 30 30 1c 02 04   ......0000000...
+|   3312: 01 02 04 01 02 04 01 06 62 69 6e 61 72 79 03 06   ........binary..
+|   3328: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3344: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3360: 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02   ................
+|   3376: 03 06 01 02 02 03 06 01 02 02 01 08 63 6f 6d 70   ............comp
+|   3392: 69 6c 65 72 01 02 02 01 02 02 01 02 02 01 06 64   iler...........d
+|   3408: 62 73 74 61 74 07 02 03 01 02 03 01 02 03 02 04   bstat...........
+|   3424: 65 62 75 67 04 02 02 01 02 02 01 02 02 01 06 65   ebug...........e
+|   3440: 6b b1 62 6c 65 07 02 02 01 02 02 01 02 02 01 02   k.ble...........
+|   3456: 02 01 02 02 01 02 02 01 02 02 01 02 02 01 02 02   ................
+|   3472: 01 02 02 01 02 02 05 02 02 01 02 02 01 02 02 01   ................
+|   3488: 02 02 01 02 02 01 02 02 01 02 02 01 02 02 01 02   ................
+|   3504: 02 01 02 02 02 08 78 74 65 6e 73 69 6f 6e 1f 02   ......xtension..
+|   3520: 04 01 02 04 01 02 04 01 04 66 74 73 34 1a 02 03   .........fts4...
+|   3536: 01 02 03 01 02 03 04 01 35 0d 02 03 01 02 03 01   ........5.......
+|   3552: 02 03 01 03 67 63 63 01 02 03 01 02 03 01 02 03   ....gcc.........
+|   3568: 02 06 65 6f 70 6f 6c 79 10 02 03 01 02 03 01 02   ..eopoly........
+|   3584: 03 01 05 6a 73 6f 6e 31 13 02 03 01 02 03 01 02   ...json1........
+|   3600: 03 01 04 6c 6f 61 64 1f 02 03 01 02 03 01 02 03   ...load.........
+|   3616: 01 03 6d 61 78 1c 02 02 01 02 02 01 02 02 02 05   ..max...........
+|   3632: 65 6d 6f 72 79 1c 02 03 01 02 03 01 02 03 04 04   emory...........
+|   3648: 73 79 73 35 16 02 03 01 02 03 01 02 03 01 06 6e   sys5...........n
+|   3664: 6f 63 61 73 65 02 06 01 02 02 03 06 01 02 02 03   ocase...........
+|   3680: 06 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06   ................
+|   3696: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3712: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3728: 02 01 04 6f 6d 69 74 1f 02 02 01 02 02 01 02 01   ...omit.........
+|   3744: ff ff ff ff ff ff ff ff ff ff ff ff ff ff f1 02   ................
+|   3760: 58 81 96 4d 01 06 01 02 02 03 06 01 02 02 03 06   X..M............
+|   3776: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3792: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3808: 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02   ................
+|   3824: 01 0a 74 68 72 65 61 64 73 61 66 65 22 02 02 01   ..threadsafe....
+|   3840: 02 02 01 02 02 01 04 76 74 61 62 07 02 04 01 02   .......vtab.....
+|   3856: 04 01 02 04 01 01 78 01 06 01 01 02 01 06 01 01   ......x.........
+|   3872: 02 01 06 01 c6 02 01 06 01 01 02 01 06 01 01 02   ................
+|   3888: 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01   ................
+|   3904: 06 01 01 02 00 f6 01 01 02 01 06 01 01 02 01 06   ................
+|   3920: 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01   ................
+|   3936: 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01   ................
+|   3952: 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02   ................
+|   3968: 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01   ................
+|   3984: 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06   ................
+|   4000: 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01   ................
+|   4016: 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01   ................
+|   4032: 02 01 06 01 01 02 01 06 01 01 02 04 15 13 0c 0c   ................
+|   4048: 12 44 13 11 0f 47 13 0f 0c 0e 11 10 0f 0e 10 0f   .D...G..........
+|   4064: 44 0f 10 40 15 0f 07 01 03 00 14 24 5a 24 24 0f   D..@.......$Z$$.
+|   4080: 0a 03 00 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 4 offset 12288
+|      0: 0a 00 00 00 01 0f fa 00 0f fa 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
+| page 7 offset 24576
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| end crash-c69fcaceff1e50.db
+}]} {}
+
+do_catchsql_test 3.1 {
+  UPDATE t1 SET b=quote(zeroblob(200)) WHERE a MATCH 'thra*T';
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 4.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 24576 pagesize 4096 filename crash-ef6738247b1344.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 10 00 06 40 00 00 06   .....@  ....@...
+|     32: 00 00 00 00 00 00 00 00 00 00 00 06 00 00 00 00   ................
+|     96: 00 00 00 00 0d 00 00 00 06 0e 0f 00 0f aa 0f 53   ...............S
+|    112: 0e e8 0e 8b 0e 33 0e 0f 00 00 00 00 00 00 00 00   .....3..........
+|   3584: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 22   ................
+|   3600: 06 06 17 11 11 01 31 74 61 62 6c 65 62 62 62 62   ......1tablebbbb
+|   3616: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 62 62   .CREATE TABLE bb
+|   3632: 28 61 29 56 05 06 17 1f 1f 01 7d 74 61 62 6c 65   (a)V.......table
+|   3648: 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63 6f 6e 66   t1_configt1_conf
+|   3664: 69 67 05 43 52 45 41 54 45 20 54 41 42 4c 45 20   ig.CREATE TABLE 
+|   3680: 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b 20 50 52   't1_config'(k PR
+|   3696: 49 4d 41 52 59 20 4b 45 59 2c 20 76 29 20 57 49   IMARY KEY, v) WI
+|   3712: 54 48 4f 55 54 20 52 4f 57 49 44 5b 04 07 17 21   THOUT ROWID[...!
+|   3728: 21 01 81 01 74 61 62 6c 65 74 31 5f 64 6f 63 73   !...tablet1_docs
+|   3744: 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65 04 43 52   izet1_docsize.CR
+|   3760: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 64   EATE TABLE 't1_d
+|   3776: 6f 63 73 69 7a 65 27 28 69 64 20 49 4e 54 45 47   ocsize'(id INTEG
+|   3792: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
+|   3808: 73 7a 20 42 4c 4f 42 29 69 03 07 17 19 19 01 81   sz BLOB)i.......
+|   3824: 2d 74 61 62 6c 65 74 31 5f 69 64 78 74 31 5f 69   -tablet1_idxt1_i
+|   3840: 64 78 03 43 52 45 41 54 45 20 54 41 42 4c 45 20   dx.CREATE TABLE 
+|   3856: 27 74 31 5f 69 64 78 27 28 73 65 67 69 64 2c 20   't1_idx'(segid, 
+|   3872: 74 65 72 6d 2c 20 6f 67 6e 6f 2c 20 50 52 49 4d   term, ogno, PRIM
+|   3888: 41 52 59 20 4b 45 59 28 73 65 67 69 64 2c 20 74   ARY KEY(segid, t
+|   3904: 65 72 6d 29 29 20 57 49 54 48 4f 55 54 20 52 4f   erm)) WITHOUT RO
+|   3920: 57 49 44 55 35 07 17 1b 1b 01 81 01 74 61 62 6c   WIDU5.......tabl
+|   3936: 65 74 31 5f 64 61 74 61 74 31 5f 64 61 74 61 02   et1_datat1_data.
+|   3952: 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74 31   CREATE TABLE 't1
+|   3968: 5f 64 61 74 61 27 28 69 64 20 49 4e 54 45 47 45   _data'(id INTEGE
+|   3984: 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 62   R PRIMARY KEY, b
+|   4000: 6c 6f 63 6b 20 42 4c 4f 42 29 54 01 07 17 11 11   lock BLOB)T.....
+|   4016: 08 81 15 74 61 62 6c 65 74 31 74 31 43 52 45 41   ...tablet1t1CREA
+|   4032: 54 45 20 56 49 52 54 55 41 4c 20 54 41 42 4c 45   TE VIRTUAL TABLE
+|   4048: 20 74 31 20 55 53 49 4e 47 20 66 74 73 35 28 61    t1 USING fts5(a
+|   4064: 2c 62 2c 70 72 65 66 69 78 3d 22 31 2c 32 2c 33   ,b,prefix=.1,2,3
+|   4080: 2c 34 22 2c 20 63 6f 6e 74 65 6e 74 3d 22 22 29   ,4., content=..)
+| page 2 offset 4096
+|      0: 0d 0b 6a 00 37 09 4c 02 0f e7 09 4c 0f c6 0f a4   ..j.7.L....L....
+|     16: 0f 88 0f 6d 0f 4b 0f 2c 0f 0e 0e ec 0e cd 0e ad   ...m.K.,........
+|     32: 0e 8e 0e 6c 0e 4b 0e 29 0e 08 0d e6 0d c4 0d b5   ...l.K.)........
+|     48: 0d 97 0d 76 0d 54 0d 31 0d 15 0c f3 0c d3 0c b5   ...v.T.1........
+|     64: 0c 95 0c 73 0c 54 0c 32 0c 10 0b ee 0b cc 0b b0   ...s.T.2........
+|     80: 0b 8d 0b 7e 0b 48 0b 2e 0b 0b 0a ef 0a cc 0a 00   ...~.H..........
+|   2368: 00 00 00 00 00 00 00 00 00 00 00 00 15 0a 03 00   ................
+|   2384: 30 00 00 00 01 01 03 35 00 03 01 01 12 02 01 12   0......5........
+|   2400: 03 01 11 1c 8c 80 80 80 80 10 02 9c 3e 00 00 00   ............>...
+|   2416: 17 01 05 05 34 74 61 62 6c 03 02 03 01 04 77 68   ....4tabl.....wh
+|   2432: 65 72 03 02 06 09 1b 8c 80 80 80 80 0f 03 00 3c   er.............<
+|   2448: 00 00 00 16 05 34 66 74 73 34 03 02 02 01 04 6e   .....4fts4.....n
+|   2464: 75 6d 62 03 06 01 04 09 1b 8c 80 80 80 80 0e 03   umb.............
+|   2480: 00 3c 00 00 00 16 04 33 74 68 65 03 06 01 01 04   .<.....3the.....
+|   2496: 01 03 77 68 65 03 02 04 04 0a 1b 8c 80 80 80 80   ..whe...........
+|   2512: 0d 03 00 3c 00 00 00 16 04 33 6e 75 6d 03 06 01   ...<.....3num...
+|   2528: 01 05 01 03 74 61 62 03 02 03 04 0a 19 8c 80 80   ....tab.........
+|   2544: 80 80 0c 03 00 38 00 00 00 14 03 32 77 68 03 02   .....8.....2wh..
+|   2560: 04 00 04 33 66 74 73 03 12 02 04 07 18 8c 80 80   ...3fts.........
+|   2576: 80 80 0b 03 00 36 00 00 00 13 03 32 74 61 03 02   .....6.....2ta..
+|   2592: 03 02 01 68 03 06 01 01 04 04 07 1b 8c 80 80 80   ...h............
+|   2608: 80 0a 03 00 3c 00 00 00 16 03 32 6e 75 03 06 01   ....<.....2nu...
+|   2624: 01 05 01 02 6f 66 03 06 01 01 06 04 09 19 8c 80   ....of..........
+|   2640: 82 d0 80 09 03 00 38 00 00 00 14 03 32 66 74 03   ......8.....2ft.
+|   2656: 02 02 01 02 69 73 03 06 01 01 03 04 07 18 8c 80   ....is..........
+|   2672: 80 80 80 08 03 00 36 00 00 00 13 02 31 74 03 08   ......6.....1t..
+|   2688: 03 01 01 04 01 01 77 03 02 04 04 09 1a 8c 80 80   ......w.........
+|   2704: 80 80 07 03 00 3a 00 00 00 15 02 31 6e 03 08 01   .....:.....1n...
+|   2720: 01 02 05 01 01 6f 03 06 01 01 06 04 09 18 8c 80   .....o..........
+|   2736: 81 80 80 06 03 00 36 00 00 00 13 04 12 31 66 03   ......6......1f.
+|   2752: 02 02 01 01 69 03 06 01 01 03 05 06 1c 8c 80 80   ....i...........
+|   2768: 80 80 05 03 00 3e 00 00 00 17 04 30 74 68 65 03   .....>.....0the.
+|   2784: 06 01 01 04 01 05 77 68 65 72 65 03 02 04 0a 15   ......where.....
+|   2800: 8c 80 65 80 80 04 03 00 30 00 00 00 11 01 01 06   ..e.....0.......
+|   2816: 06 30 74 61 62 6c 65 03 02 03 07 1c 8c 80 80 80   .0table.........
+|   2832: 80 03 03 00 3e 00 00 00 17 07 30 6e 75 6d 62 65   ....>.....0numbe
+|   2848: 72 03 06 01 01 05 01 02 6f 66 03 06 04 0d 13 8c   r.......of......
+|   2864: 80 80 80 80 02 03 00 2c 00 00 00 0f fc 01 03 02   .......,........
+|   2880: 30 6e 03 06 01 00 f2 07 1b 8c 80 80 80 80 01 03   0n..............
+|   2896: 00 3c 00 00 00 16 08 30 66 74 73 34 61 75 78 03   .<.....0fts4aux.
+|   2912: 03 02 01 02 69 73 03 06 04 0c 00 00 00 18 ea 00   ....is..........
+|   2928: 00 00 01 01 02 24 00 02 01 01 12 02 01 12 08 88   .....$..........
+|   2944: 80 80 80 80 12 03 00 12 10 00 00 05 02 1c 88 80   ................
+|   2960: 80 80 80 11 03 00 3e 00 00 00 17 05 34 72 6f 77   ......>.....4row
+|   2976: 73 02 06 01 01 05 01 04 74 68 65 72 02 02 04 0b   s.......ther....
+|   2992: 15 88 80 80 80 80 10 03 00 2f ff ff f0 11 02 01   ........./......
+|   3008: 01 07 05 34 62 65 74 77 02 02 04 08 1b 88 80 80   ...4betw........
+|   3024: 80 80 0f cf 00 3c 00 00 00 16 04 04 33 72 6f 77   .....<......3row
+|   3040: 02 06 01 01 05 01 03 74 68 65 02 08 05 0a 1b 88   .......the......
+|   3056: 80 80 80 80 0d 03 00 3c 00 00 00 16 00 01 02 04   .......<........
+|   3072: 33 61 72 65 02 02 03 01 03 62 65 74 02 02 07 08   3are.....bet....
+|   3088: 1b 88 80 80 80 80 0d 03 00 3c 00 00 00 16 03 32   .........<.....2
+|   3104: 74 68 02 08 02 01 01 07 00 04 33 61 6e 64 02 06   th........3and..
+|   3120: 04 0a 1b 88 80 80 80 80 0c 03 00 3c 00 00 00 16   ...........<....
+|   3136: 03 32 69 6e 02 06 01 01 06 01 02 72 6f 02 06 01   .2in.......ro...
+|   3152: 01 05 04 09 18 88 80 80 80 80 0b 03 00 36 00 00   .............6..
+|   3168: 00 13 02 03 32 61 72 02 02 03 01 02 62 65 02 02   ....2ar.....be..
+|   3184: 04 05 07 1b 88 80 80 80 80 0a 03 00 3c 00 00 00   ............<...
+|   3200: 16 12 31 74 02 08 02 01 01 07 00 03 32 61 6e 02   ..1t........2an.
+|   3216: 06 01 01 04 09 19 88 80 80 80 80 09 03 00 38 00   ..............8.
+|   3232: 00 00 14 02 31 6e 02 06 01 01 03 01 01 72 02 06   ....1n.......r..
+|   3248: 01 01 05 04 08 17 78 80 80 80 80 08 03 00 34 10   ......x.......4.
+|   3264: 01 00 12 02 31 62 02 02 04 01 01 69 02 06 01 01   ....1b.....i....
+|   3280: 06 04 06 19 88 80 80 80 80 07 03 00 38 00 00 00   ............8...
+|   3296: 14 04 02 31 32 02 02 05 01 01 61 02 08 03 01 01   ...12.....a.....
+|   3312: 02 05 06 1b 88 80 80 80 80 06 03 00 3c 00 00 00   ............<...
+|   3328: 16 06 30 74 68 65 72 65 e7 02 02 00 02 31 31 02   ..0there.....11.
+|   3344: 06 01 01 04 0a 15 88 80 80 80 80 05 03 00 30 00   ..............0.
+|   3360: 00 00 11 01 01 05 e5 30 74 68 65 02 06 01 01 07   .......0the.....
+|   3376: 07 1c 88 80 80 80 80 04 03 00 3e 00 00 00 17 01   ..........>.....
+|   3392: 01 06 02 30 6e 02 06 01 01 03 01 04 72 6f 77 73   ...0n.......rows
+|   3408: 02 06 07 08 1b 88 80 80 80 80 03 03 00 3c 00 00   .............<..
+|   3424: 00 16 08 30 62 65 74 77 65 65 6e 02 02 04 01 02   ...0between.....
+|   3440: 69 6e 02 06 04 0c 1a 88 80 80 80 80 02 03 00 3a   in.............:
+|   3456: 00 00 00 15 04 30 61 6e 64 02 06 01 01 02 02 02   .....0and.......
+|   3472: 72 65 02 02 03 04 0a 17 88 80 80 80 80 01 03 00   re..............
+|   3488: 34 01 00 00 12 02 30 31 02 06 01 01 04 01 01 32   4.....01.......2
+|   3504: 02 02 05 04 08 08 84 80 80 80 80 12 03 00 16 00   ................
+|   3520: 00 00 05 04 1b 84 80 80 80 80 11 03 00 3c 00 00   .............<..
+|   3536: 00 16 05 34 74 61 62 6c 01 06 01 01 05 02 03 65   ...4tabl.......e
+|   3552: 72 6d 01 02 04 0b 1b 84 80 80 80 80 10 03 00 3c   rm.............<
+|   3568: 00 00 00 16 05 34 65 61 63 68 01 02 02 01 04 70   .....4each.....p
+|   3584: 72 65 73 01 02 05 04 09 1a 84 80 80 80 80 0f 03   res.............
+|   3600: 00 3a 00 00 00 15 04 33 74 65 72 01 02 04 02 02   .:.....3ter.....
+|   3616: 68 65 01 06 01 01 03 04 08 1b 84 80 80 80 80 0e   he..............
+|   3632: 03 00 3c 00 00 00 16 04 33 70 72 65 01 02 05 01   ..<.....3pre....
+|   3648: 03 74 61 62 01 06 01 01 05 04 08 1a 84 80 80 80   .tab............
+|   3664: 80 0d 03 0d 1a 00 00 00 15 04 33 66 6e 72 01 02   ..........3fnr..
+|   3680: 02 02 02 74 73 01 06 01 01 04 04 08 1b 84 80 80   ...ts...........
+|   3696: 80 80 0c 03 00 3c 00 00 00 16 03 32 74 68 01 06   .....<.....2th..
+|   3712: 01 01 03 00 04 33 65 61 63 01 02 03 04 09 18 84   .....3eac.......
+|   3728: 80 80 80 80 0b 03 00 36 00 00 00 13 03 32 74 61   .......6.....2ta
+|   3744: 01 06 01 01 05 02 01 65 01 02 04 04 09 19 84 80   .......e........
+|   3760: 80 80 80 0a 03 00 38 00 00 00 14 03 30 c9 6e 01   ......8.....0.n.
+|   3776: 06 01 01 02 01 02 70 72 01 02 05 04 09 18 84 80   ......pr........
+|   3792: 80 80 80 09 03 00 36 00 00 00 13 03 32 66 6f 01   ......6.....2fo.
+|   3808: 02 0b e2 01 74 01 06 01 01 04 04 07 1b 84 80 80   ....t...........
+|   3824: 86 f0 08 03 00 3c 00 00 00 16 02 31 74 01 0a 04   .....<.....1t...
+|   3840: 01 01 03 04 00 03 32 65 61 01 02 03 04 0a 17 84   ......2ea.......
+|   3856: 80 80 80 80 07 03 00 34 00 00 00 12 02 31 69 01   .......4.....1i.
+|   3872: 06 01 01 02 01 01 70 01 02 05 04 08 18 84 80 80   ......p.........
+|   3888: 80 80 06 03 00 36 00 00 00 13 02 31 65 01 02 03   .....6.....1e...
+|   3904: 01 01 66 01 08 02 01 01 04 04 06 1b 84 80 80 80   ..f.............
+|   3920: 80 05 03 00 3c 00 00 00 16 05 30 74 65 72 6d 01   ....<.....0term.
+|   3936: 02 04 02 02 68 65 01 06 01 01 03 04 09 14 84 80   ....he..........
+|   3952: 80 80 80 04 03 00 2e 00 00 00 10 06 30 74 61 62   ............0tab
+|   3968: 6c 65 01 06 01 01 05 04 15 84 7f 80 80 80 03 03   le..............
+|   3984: 00 30 00 00 00 11 02 08 30 70 72 65 73 65 6e 74   .0......0present
+|   4000: 01 02 05 05 1b 84 80 22 80 80 02 03 00 3c 00 00   .............<..
+|   4016: 00 16 04 30 66 74 73 01 06 01 01 04 01 02 69 6e   ...0fts.......in
+|   4032: 01 06 01 01 04 0a 1a 84 80 80 80 80 01 03 00 3a   ...............:
+|   4048: 00 00 00 15 05 30 65 61 63 68 01 02 03 01 03 66   .....0each.....f
+|   4064: 6f 72 01 02 02 04 09 06 01 03 00 12 03 0b 0f 00   or..............
+|   4080: 00 08 8c 80 80 80 80 11 03 00 16 00 00 00 05 04   ................
+| page 3 offset 8192
+|      0: 0a 00 00 00 32 0e 4f 00 0f fa 0f f1 0f e9 0f e1   ....2.O.........
+|     16: 0f d8 0f d1 0f c9 0f c1 0f b9 0f b1 0f a9 0f a0   ................
+|     32: 0f 98 0f 90 0f 87 0f 80 0f 78 0f 71 0f 68 0f 5f   .........x.q.h._
+|     48: 0f 56 0f 00 00 00 00 00 00 00 00 00 00 00 00 00   .V..............
+|   3392: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08   ................
+|   3408: 04 01 10 01 03 34 74 20 07 04 01 0e 01 03 34 1e   .....4t ......4.
+|   3424: 09 04 01 12 01 03 33 74 68 1c 08 04 01 10 01 03   ......3th.......
+|   3440: 34 6e 1a 08 04 01 10 01 03 32 67 18 08 04 01 10   4n.......2g.....
+|   3456: 01 03 32 74 16 08 04 01 10 01 03 32 6e 14 07 04   ..2t.......2n...
+|   3472: 01 0e 01 03 32 12 08 04 01 10 01 03 31 74 10 08   ....2.......1t..
+|   3488: 04 01 10 01 03 31 6e 0e 07 04 01 0e 01 03 31 0c   .....1n.......1.
+|   3504: 09 04 01 12 01 03 30 74 68 0a 08 04 01 10 01 03   ......0th.......
+|   3520: 30 74 08 09 04 01 12 01 03 30 6e 75 06 08 04 01   0t.......0nu....
+|   3536: 10 01 03 30 6e 04 06 04 01 0c 01 03 02 08 04 01   ...0n...........
+|   3552: 10 01 02 34 72 22 07 04 01 0e 01 02 34 20 08 04   ...4r.......4 ..
+|   3568: 01 10 01 02 33 72 1e 09 04 01 12 01 02 33 61 72   ....3r.......3ar
+|   3584: 1c 18 04 01 10 01 02 32 74 1a 08 04 01 10 01 02   .......2t.......
+|   3600: 32 69 18 09 04 01 12 01 02 32 61 72 16 08 04 01   2i.......2ar....
+|   3616: 10 01 02 31 74 2a 08 04 01 0f 01 02 31 6e 12 0a   ...1t*......1n..
+|   3632: d4 01 10 01 02 31 62 10 08 04 01 10 01 02 31 32   .....1b.......12
+|   3648: 0e 0b 04 01 16 01 02 30 74 68 65 72 0c 08 04 01   .......0ther....
+|   3664: 10 01 02 30 74 0a 08 04 01 10 01 02 30 6e 08 08   ...0t.......0n..
+|   3680: 04 01 10 01 02 30 62 06 08 04 01 10 01 02 30 61   .....0b.......0a
+|   3696: 04 06 03 f1 0c 01 02 02 07 04 09 10 01 34 74 22   .............4t.
+|   3712: 06 04 09 0e 01 34 20 08 04 09 12 01 33 74 65 1e   .....4 .....3te.
+|   3728: 07 04 09 10 01 33 70 1c 07 04 09 10 01 33 66 1a   .....3p......3f.
+|   3744: 08 04 09 12 01 32 74 68 18 07 04 09 10 01 32 74   .....2th......2t
+|   3760: 16 07 04 09 10 01 32 69 14 07 04 09 10 01 32 66   ......2i......2f
+|   3776: 12 07 04 09 10 01 31 74 10 07 04 09 10 01 31 69   ......1t......1i
+|   3792: 0e 06 04 09 0e 01 31 0c 08 04 09 12 01 30 74 65   ......1......0te
+|   3808: 0a 07 04 09 10 01 30 74 08 07 04 09 10 01 30 70   ......0t......0p
+|   3824: 06 08 04 09 1e 61 30 66 74 04 05 00 00 00 00 00   .....a0ft.......
+| page 4 offset 12288
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 05 03 03 00 10   ................
+|   4080: 03 05 05 02 03 00 10 04 06 05 01 03 00 10 04 04   ................
+| page 5 offset 16384
+|      0: 0a 00 00 00 02 0f eb 00 0f eb 0f f4 00 00 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 08 03 15 01 70   ...............p
+|   4080: 67 73 7a 18 0b 03 1b 01 76 65 72 73 69 6f 6e 04   gsz.....version.
+| end crash-ef6738247b1344.db
+}]} {}
+
+
+do_catchsql_test 4.1 {
+  BEGIN;
+  REPLACE INTO t1(rowid,b,a,rowid) VALUES(200,1,2,3);
+} {1 {database disk image is malformed}}
+
+do_catchsql_test 4.2 {
+  INSERT INTO t1(t1) VALUES('delete-all');
+} {1 {database disk image is malformed}}
+do_catchsql_test 4.3 {
+  REPLACE INTO t1(rowid,b,rowid,a) VALUES(200,1,2,3);
+} {1 {database disk image is malformed}}
+do_catchsql_test 4.4 {
+  REPLACE INTO t1(rowid,b,a,rowid) VALUES(0,1,2,3);
+} {1 {database disk image is malformed}}
+do_catchsql_test 4.5 {
+  REPLACE INTO t1(rowid,a,b,rowid) VALUES(200,1,2,3);
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 5.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 28672 pagesize 4096 filename crash-0c6d3451d11597.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 07   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 07 00 00 00 04   ................
+|     96: 00 00 00 00 0d 00 00 00 07 0d d2 00 0f c4 0f 6d   ...............m
+|    112: 0f 02 0e ab 0e 4e 0d f6 0d d2 00 00 00 00 00 00   .....N..........
+|   3536: 00 00 22 07 06 17 11 11 01 31 74 61 62 6c 65 74   .........1tablet
+|   3552: 32 74 32 07 43 52 45 41 54 45 20 54 41 42 4c 45   2t2.CREATE TABLE
+|   3568: 20 74 32 28 78 29 56 06 06 17 1f 1f 01 7d 74 61    t2(x)V.......ta
+|   3584: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   blet1_configt1_c
+|   3600: 6f 6e 66 69 67 06 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
+|   3616: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
+|   3632: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
+|   3648: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 05    WITHOUT ROWID[.
+|   3664: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64   ..!!...tablet1_d
+|   3680: 6f 63 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65   ocsizet1_docsize
+|   3696: 05 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
+|   3712: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
+|   3728: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
+|   3744: 59 2c 20 73 7a 20 42 4c 4f 42 29 55 04 06 17 21   Y, sz BLOB)U...!
+|   3760: 21 01 77 74 61 62 6c 65 74 31 5f 63 6f 6e 74 65   !.wtablet1_conte
+|   3776: 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 04 43 52 45   ntt1_content.CRE
+|   3792: 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63 6f   ATE TABLE 't1_co
+|   3808: 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47 45   ntent'(id INTEGE
+|   3824: 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 63   R PRIMARY KEY, c
+|   3840: 30 29 69 03 07 17 19 19 01 81 2d 74 61 62 6c 65   0)i.......-table
+|   3856: 74 31 5f 69 64 78 74 31 5f 69 64 78 03 43 52 45   t1_idxt1_idx.CRE
+|   3872: 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 69 64   ATE TABLE 't1_id
+|   3888: 78 27 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20   x'(segid, term, 
+|   3904: 70 67 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45   pgno, PRIMARY KE
+|   3920: 59 28 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20   Y(segid, term)) 
+|   3936: 57 49 54 48 4f 55 54 20 52 4f 57 49 44 55 02 07   WITHOUT ROWIDU..
+|   3952: 17 1b 1b 01 81 01 74 61 62 6c 65 74 31 5f 64 61   ......tablet1_da
+|   3968: 74 61 74 31 5f 64 61 74 61 02 43 52 45 41 54 45   tat1_data.CREATE
+|   3984: 20 54 41 42 4c 45 20 27 74 31 5f 64 61 74 61 27    TABLE 't1_data'
+|   4000: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   (id INTEGER PRIM
+|   4016: 41 52 b9 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42   AR. KEY, block B
+|   4032: 4c 4f 42 29 3a 01 06 17 11 11 08 63 74 61 62 6c   LOB):......ctabl
+|   4048: 65 74 31 74 31 43 52 45 41 54 45 20 56 49 52 54   et1t1CREATE VIRT
+|   4064: 55 41 4c 20 54 41 42 4c 45 20 74 31 20 55 53 49   UAL TABLE t1 USI
+|   4080: 4e 47 20 66 74 73 35 28 63 6f 6e 74 65 6e 74 29   NG fts5(content)
+| page 2 offset 4096
+|      0: 0d 00 00 00 03 0f bd 00 0f e8 0f ef 0f bd 00 00   ................
+|     16: 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 00 00 00 00 00 24 84 80   .............$..
+|   4032: 80 80 80 01 03 00 4e 00 00 00 1e 06 30 61 62 61   ......N.....0aba
+|   4048: 63 6b 01 02 02 04 02 66 74 02 02 02 04 04 6e 64   ck.....ft.....nd
+|   4064: 6f 6e 03 02 02 04 0a 07 05 01 03 00 10 03 03 0f   on..............
+|   4080: 0a 03 00 24 00 00 00 00 01 01 01 00 01 01 01 11   ...$............
+| page 3 offset 8192
+|      0: 0a 00 00 00 01 0f 00 00 00 00 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
+| page 4 offset 12288
+|      0: 0d 00 00 00 03 0f e0 00 0f f6 0f ec 0f e0 00 00   ................
+|   4064: 0a 03 03 00 1b 61 62 61 6e 64 6f 6e 08 02 03 00   .....abandon....
+|   4080: 17 61 62 61 66 74 08 01 03 00 17 61 62 61 63 6b   .abaft.....aback
+| page 5 offset 16384
+|      0: 0d 00 00 00 03 0f ee 00 0f fa 0f f4 0f ee 00 00   ................
+|     16: 00 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 04 03   ................
+|   4080: 03 00 0e 01 04 02 03 00 0e 01 04 01 03 00 0e 01   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 7 offset 24576
+|      0: 0d 00 00 10 03 0f d6 00 0f f4 10 e1 0f d6 00 00   ................
+|     16: 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4048: 00 00 00 00 00 00 09 03 02 1b 72 65 62 75 69 6c   ..........rebuil
+|   4064: 64 11 02 02 2b 69 6e 74 65 67 72 69 74 79 2d 63   d...+integrity-c
+|   4080: 68 65 63 6b 0a 01 02 1d 6f 70 74 69 6d 00 00 00   heck....optim...
+| end crash-0c6d3451d11597.db
+}]} {}
+
+do_execsql_test 5.1 {
+  INSERT INTO t1(t1,rank) VALUES('secure-delete',1);
+}
+do_catchsql_test 5.4 {
+  UPDATE t1 SET content=randomblob(500);
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 6.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 32768 pagesize 4096 filename crash-42fa37b694d45a.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 07   .....@  ........
+|     96: 00 00 00 00 0d 00 00 00 07 0d d2 00 0f c4 0f 6d   ...............m
+|    112: 0f 02 0e ab 0e 4e 0d f6 0d d2 00 00 00 00 00 00   .....N..........
+|   3536: 00 00 22 07 06 17 11 11 01 31 74 61 62 6c 65 74   .........1tablet
+|   3552: 32 74 32 07 43 52 45 41 54 45 20 54 41 42 4c 45   2t2.CREATE TABLE
+|   3568: 20 74 32 28 78 29 56 06 06 17 1f 1f 01 7d 74 61    t2(x)V.......ta
+|   3584: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   blet1_configt1_c
+|   3600: 6f 6e 66 69 67 06 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
+|   3616: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
+|   3632: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
+|   3648: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 05    WITHOUT ROWID[.
+|   3664: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64   ..!!...tablet1_d
+|   3680: 6f 63 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65   ocsizet1_docsize
+|   3696: 05 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
+|   3712: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
+|   3728: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
+|   3744: 59 2c 20 73 7a 20 42 4c 4f 42 29 55 04 06 17 21   Y, sz BLOB)U...!
+|   3760: 21 01 77 74 61 62 6c 65 74 31 5f 63 6f 6e 74 65   !.wtablet1_conte
+|   3776: 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 04 43 52 45   ntt1_content.CRE
+|   3792: 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63 6f   ATE TABLE 't1_co
+|   3808: 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47 45   ntent'(id INTEGE
+|   3824: 52 20 50 52 49 4d 41 52 49 20 4b 45 59 2c 20 63   R PRIMARI KEY, c
+|   3840: 30 29 69 03 07 17 19 19 01 81 2d 74 61 62 6c 65   0)i.......-table
+|   3856: 74 31 5f 69 64 78 74 31 5f 69 64 78 03 43 52 45   t1_idxt1_idx.CRE
+|   3872: 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 69 64   ATE TABLE 't1_id
+|   3888: 78 27 28 73 65 67 69 64 2c 20 74 65 72 6d 2c 20   x'(segid, term, 
+|   3904: 70 67 6e 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45   pgno, PRIMARY KE
+|   3920: 59 28 73 65 67 69 64 2c 20 74 65 72 6d 29 29 20   Y(segid, term)) 
+|   3936: 57 49 54 48 4f 55 54 20 52 4f 57 49 44 55 02 07   WITHOUT ROWIDU..
+|   3952: 17 1b 1b 01 81 01 74 61 62 6c 65 74 31 5f 64 61   ......tablet1_da
+|   3968: 74 61 74 31 5f 64 61 74 61 02 43 52 45 41 54 45   tat1_data.CREATE
+|   3984: 20 54 41 42 4c 45 20 27 74 31 5f 64 61 74 61 27    TABLE 't1_data'
+|   4000: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   (id INTEGER PRIM
+|   4016: 41 52 b9 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42   AR. KEY, block B
+|   4032: 4c 4f 42 29 3a 01 06 17 11 11 08 63 74 61 62 6c   LOB):......ctabl
+|   4048: 65 74 31 74 31 43 52 45 41 54 45 20 56 49 52 54   et1t1CREATE VIRT
+|   4064: 55 41 4c 20 54 41 42 4c 45 20 74 31 20 55 53 49   UAL TABLE t1 USI
+|   4080: 4e 47 20 66 74 73 35 28 63 6f 6e 74 65 6e 74 29   NG fts5(content)
+| page 2 offset 4096
+|      0: 0d 00 00 00 03 0f bd 00 0f e8 0f ef 0f bd f0 00   ................
+|     16: 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 00 00 00 00 00 24 84 80   .............$..
+|   4032: 80 80 80 01 03 00 4e 00 10 00 1e 06 30 61 62 61   ......N.....0aba
+|   4048: 63 6c 01 02 02 04 02 66 74 02 5f 02 04 04 6e 64   cl.....ft._...nd
+|   4064: 6f 6e 02 02 02 04 0a 07 05 01 03 00 10 03 03 0f   on..............
+|   4080: 0a 03 00 24 00 00 00 00 01 01 01 00 01 01 01 11   ...$............
+| page 3 offset 8192
+|      0: 0a 00 00 00 01 0f 00 01 00 00 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
+| page 4 offset 12288
+|      0: 0d 00 00 00 03 0f e0 00 0f f6 0f ec 0f e0 00 00   ................
+|   4064: 0a 03 03 00 1b 61 62 61 6e 64 6f 6e 08 02 03 00   .....abandon....
+|   4080: 17 61 62 61 66 74 08 01 03 00 17 61 62 61 63 6b   .abaft.....aback
+| page 5 offset 16384
+|      0: 0d 00 00 00 03 0f ee 00 0f fa 0f 00 00 00 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 04 03   ................
+|   4080: 03 00 0e 01 04 02 03 00 0e 01 04 01 03 00 0e 01   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 7 offset 24576
+|      0: 0d 00 00 10 03 0f d6 00 0f 00 00 00 00 00 00 00   ................
+|   4048: 00 00 00 00 00 00 09 03 02 1b 72 65 62 75 69 6c   ..........rebuil
+|   4064: 64 11 02 02 2b 69 6e 74 65 67 72 69 74 79 2d 63   d...+integrity-c
+|   4080: 68 65 63 6b 0a 01 02 1d 6f 70 74 69 6d 00 00 00   heck....optim...
+| page 8 offset 28672
+|      0: 00 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+| end crash-42fa37b694d45a.db
+}]} {}
+
+do_execsql_test 6.1 {
+  INSERT INTO t1(t1,rank) VALUES('secure-delete',1);
+}
+do_catchsql_test 6.2 {
+  UPDATE t1 SET content=randomblob(500) WHERE t1;
+} {1 {constraint failed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 7.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 40960 pagesize 4096 filename crash-d8b4a99207c10b.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 0a   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 0d 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 00 00 00 0d 0b 62 00 0f 97 0f 40   ..........b....@
+|    112: 0e d5 0e 75 0e 18 0d c0 0d 66 0d 0f 0c a4 0c 44   ...u.....f.....D
+|    128: 0b ec 0b a7 0b 62 00 00 00 00 00 00 00 00 00 00   .....b..........
+|   2912: 00 00 43 0d 06 17 11 11 08 75 74 61 62 6c 65 74   ..C......utablet
+|   2928: 34 74 34 43 52 45 41 54 45 20 56 49 52 54 55 41   4t4CREATE VIRTUA
+|   2944: 4c 20 54 41 42 4c 45 20 74 34 20 55 53 49 4e 47   L TABLE t4 USING
+|   2960: 20 66 74 73 35 76 6f 63 61 62 28 27 74 32 27 2c    fts5vocab('t2',
+|   2976: 20 27 72 6f 77 27 29 43 0c 06 17 11 11 08 75 74    'row')C......ut
+|   2992: 61 62 6c 65 74 33 74 33 43 52 45 41 54 45 20 56   ablet3t3CREATE V
+|   3008: 49 52 54 55 41 4c 20 54 41 42 4c 45 20 74 33 20   IRTUAL TABLE t3 
+|   3024: 55 53 49 4e 47 20 66 74 73 35 76 6f 63 61 62 28   USING fts5vocab(
+|   3040: 27 74 31 27 2c 20 27 72 6f 77 27 29 56 0b 06 17   't1', 'row')V...
+|   3056: 1f 1f 01 7d 74 61 62 6c 65 74 32 5f 63 6f 6e 66   ....tablet2_conf
+|   3072: 69 67 74 32 5f 63 6f 6e 66 69 67 0a 43 52 45 41   igt2_config.CREA
+|   3088: 54 45 20 54 41 42 4c 45 20 27 74 32 5f 63 6f 6e   TE TABLE 't2_con
+|   3104: 66 69 67 27 28 6b 20 50 52 49 4d 41 52 59 20 4b   fig'(k PRIMARY K
+|   3120: 45 59 2c 20 76 29 20 57 49 54 48 4f 55 54 20 52   EY, v) WITHOUT R
+|   3136: 4f 57 49 44 5e 0a 07 17 21 21 01 81 07 74 61 62   OWID^...!!...tab
+|   3152: 6c 65 74 32 5f 63 6f 6e 74 65 6e 74 74 32 5f 63   let2_contentt2_c
+|   3168: 6f 6e 74 65 6e 74 09 43 52 45 41 54 45 20 54 41   ontent.CREATE TA
+|   3184: 42 4c 45 20 27 74 32 5f 63 6f 6e 74 65 6e 74 27   BLE 't2_content'
+|   3200: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   (id INTEGER PRIM
+|   3216: 41 52 59 20 4b 45 59 2c 20 63 30 2c 20 63 31 2c   ARY KEY, c0, c1,
+|   3232: 20 63 32 29 69 09 07 17 19 19 01 81 2d 74 61 62    c2)i.......-tab
+|   3248: 6c 65 74 32 5f 69 64 78 74 32 5f 69 64 78 08 43   let2_idxt2_idx.C
+|   3264: 52 45 41 54 45 20 54 41 42 4c 45 20 27 74 32 5f   REATE TABLE 't2_
+|   3280: 69 64 78 27 28 73 65 67 69 64 2c 20 74 65 72 6d   idx'(segid, term
+|   3296: 2c 20 70 67 6e 6f 2c 20 50 52 49 4d 41 52 59 20   , pgno, PRIMARY 
+|   3312: 4b 45 59 28 73 65 67 69 64 2c 20 74 65 72 6d 29   KEY(segid, term)
+|   3328: 29 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 55   ) WITHOUT ROWIDU
+|   3344: 08 07 17 1b 1b 01 81 01 74 61 62 6c 65 74 32 5f   ........tablet2_
+|   3360: 64 61 74 61 74 32 5f 64 61 74 61 07 43 52 45 41   datat2_data.CREA
+|   3376: 54 45 20 54 41 42 4c 45 20 27 74 32 5f 64 61 74   TE TABLE 't2_dat
+|   3392: 61 27 28 69 64 20 49 4e 54 45 47 45 52 20 50 52   a'(id INTEGER PR
+|   3408: 49 4d 41 52 59 20 4b 45 59 2c 20 62 6c 6f 63 6b   IMARY KEY, block
+|   3424: 20 42 4c 4f 42 29 58 07 07 17 11 11 08 81 1d 74    BLOB)X........t
+|   3440: 61 62 6c 65 74 32 74 32 43 52 45 41 54 45 20 56   ablet2t2CREATE V
+|   3456: 49 52 54 55 41 4c 20 54 41 42 4c 45 20 74 32 20   IRTUAL TABLE t2 
+|   3472: 55 53 49 4e 47 20 66 74 73 35 28 27 61 27 2c 5b   USING fts5('a',[
+|   3488: 62 5d 2c 22 63 22 2c 64 65 74 61 69 6c 3d 6e 6f   b],.c.,detail=no
+|   3504: 6e 65 2c 63 6f 6c 75 6d 6e 73 69 7a 65 3d 30 29   ne,columnsize=0)
+|   3520: 56 06 06 17 1f 1f 01 7d 74 61 62 6c 65 74 31 5f   V.......tablet1_
+|   3536: 63 6f 6e 66 69 67 74 31 5f 63 6f 6e 66 69 67 06   configt1_config.
+|   3552: 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74 31   CREATE TABLE 't1
+|   3568: 5f 63 6f 6e 66 69 67 27 28 6b 20 50 52 49 4d 41   _config'(k PRIMA
+|   3584: 52 59 20 4b 45 59 2c 20 76 29 20 57 49 54 48 4f   RY KEY, v) WITHO
+|   3600: 55 54 20 52 4f 57 49 44 5b 05 07 17 21 21 01 81   UT ROWID[...!!..
+|   3616: 01 74 61 62 6c 65 74 31 5f 64 6f 63 73 69 7a 65   .tablet1_docsize
+|   3632: 74 31 5f 64 6f 63 73 69 7a 65 05 43 52 45 41 54   t1_docsize.CREAT
+|   3648: 45 20 54 41 42 4c 45 20 27 74 31 5f 64 6f 63 73   E TABLE 't1_docs
+|   3664: 69 7a 65 27 28 69 64 20 49 4e 54 45 47 45 52 20   ize'(id INTEGER 
+|   3680: 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 73 7a 20   PRIMARY KEY, sz 
+|   3696: 42 4c 4f 42 29 5e 04 07 17 21 21 01 81 07 74 61   BLOB)^...!!...ta
+|   3712: 62 6c 65 74 31 5f 63 6f 6e 74 65 6e 74 74 31 5f   blet1_contentt1_
+|   3728: 63 6f 6e 74 65 6e 74 04 43 52 45 41 54 45 20 54   content.CREATE T
+|   3744: 41 42 4c 45 20 27 74 31 5f 63 6f 6e 74 65 6e 74   ABLE 't1_content
+|   3760: 27 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49   '(id INTEGER PRI
+|   3776: 4d 41 52 59 20 4b 45 59 2c 20 63 30 2c 20 63 31   MARY KEY, c0, c1
+|   3792: 2c 20 63 32 29 69 03 07 17 19 19 01 81 2d 74 61   , c2)i.......-ta
+|   3808: 62 6c 65 74 31 5f 69 64 78 74 31 5f 69 64 78 03   blet1_idxt1_idx.
+|   3824: 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74 31   CREATE TABLE 't1
+|   3840: 5f 69 64 78 27 28 73 65 67 69 64 2c 20 74 65 72   _idx'(segid, ter
+|   3856: 6d 2c 20 70 67 6e 6f 2c 20 50 52 49 4d 41 52 59   m, pgno, PRIMARY
+|   3872: 20 4b 45 59 28 73 65 67 69 64 2c 20 74 65 72 6d    KEY(segid, term
+|   3888: 29 29 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44   )) WITHOUT ROWID
+|   3904: 55 02 07 17 1b 1b 01 81 01 74 61 62 6c 65 74 31   U........tablet1
+|   3920: 5f 64 61 74 61 74 31 5f 64 61 74 61 02 43 52 45   _datat1_data.CRE
+|   3936: 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 64 61   ATE TABLE 't1_da
+|   3952: 74 61 27 28 69 64 20 49 4e 54 45 47 45 52 20 50   ta'(id INTEGER P
+|   3968: 52 49 4d 41 52 59 20 4b 45 59 2c 20 62 6c 6f 63   RIMARY KEY, bloc
+|   3984: 6b 20 42 4c 4f 42 29 67 01 07 17 11 11 08 81 3b   k BLOB)g.......;
+|   4000: 74 61 62 6c 65 74 31 74 31 43 52 45 41 54 45 20   tablet1t1CREATE 
+|   4016: 56 49 52 54 55 41 4c 20 54 41 42 4c 45 20 74 31   VIRTUAL TABLE t1
+|   4032: 20 55 53 49 4e 47 20 66 74 73 35 28 61 2c 62 20    USING fts5(a,b 
+|   4048: 75 6e 69 6e 64 65 78 65 64 2c 63 2c 74 6f 6b 65   unindexed,c,toke
+|   4064: 6e 69 7a 65 3d 22 70 6f 72 74 65 72 20 61 73 63   nize=.porter asc
+|   4080: 69 69 22 2c 74 6f 6b 65 6e 64 61 74 61 3d 31 29   ii.,tokendata=1)
+| page 2 offset 4096
+|      0: 0d 0f 68 00 05 0f 13 00 0f e6 0f 13 0f a8 0f 7c   ..h............|
+|     16: 0f 2a 00 00 00 00 00 00 00 00 00 00 00 00 00 00   .*..............
+|   3856: 00 00 00 15 0a 03 00 30 00 00 00 00 01 03 03 00   .......0........
+|   3872: 03 01 01 01 02 01 01 03 01 01 37 8c 80 80 80 80   ..........7.....
+|   3888: 01 03 00 74 00 00 00 2e 02 30 61 03 02 02 01 01   ...t.....0a.....
+|   3904: 62 03 02 03 01 01 63 03 02 04 01 01 67 03 06 01   b.....c.....g...
+|   3920: 02 02 01 01 68 03 06 01 02 03 01 01 69 03 06 01   ....h.......i...
+|   3936: 02 04 04 06 06 06 08 08 0f ef 00 14 2a 00 00 00   ............*...
+|   3952: 00 01 02 02 00 02 01 01 01 02 01 01 25 88 80 80   ............%...
+|   3968: 80 80 01 03 00 50 00 00 00 1f 02 30 67 02 08 02   .....P.....0g...
+|   3984: 01 02 02 01 01 68 02 08 03 01 02 03 01 01 69 02   .....h........i.
+|   4000: 08 04 01 02 04 04 09 09 37 84 80 80 80 7f f1 03   ........7.......
+|   4016: 00 74 00 00 00 2e 02 30 61 01 02 02 01 01 62 01   .t.....0a.....b.
+|   4032: 02 03 01 01 63 01 02 04 01 01 67 01 06 01 02 02   ....c.....g.....
+|   4048: 01 01 68 01 06 01 02 03 01 01 69 01 06 01 02 04   ..h.......i.....
+|   4064: 04 06 06 06 08 08 07 01 03 00 14 03 09 00 09 00   ................
+|   4080: 00 00 11 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 3 offset 8192
+|      0: 0a 00 00 00 03 0f ec 00 0f fa 0f f3 0f ec 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 00 06 04 01 0c   ................
+|   4080: 01 03 02 06 04 01 0c 01 02 02 05 04 09 0c 01 02   ................
+| page 4 offset 12288
+|      0: 0d 00 00 00 03 0f be 00 0f ea 0f d4 0f be 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 14 03   ................
+|   4032: 05 00 17 17 17 61 20 62 20 63 67 20 68 20 69 67   .....a b cg h ig
+|   4048: 20 68 20 69 14 02 05 00 17 17 17 67 20 68 20 69    h i.......g h i
+|   4064: 61 20 62 20 63 67 20 68 20 69 14 01 05 00 17 17   a b cg h i......
+|   4080: 17 61 20 62 20 63 64 20 65 20 66 67 20 68 20 69   .a b cd e fg h i
+| page 5 offset 16384
+|      0: 0d 00 00 00 03 0f e8 00 0f f8 0f f0 0f e8 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 06 03 03 00 12 03 00 03   ................
+|   4080: 06 02 03 00 12 03 00 03 06 01 03 00 12 03 00 03   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 7 offset 24576
+|      0: 0d 00 00 00 03 0f 9e 00 0f e6 0f ef 0f 9e 00 00   ................
+|   3984: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 41 84   ..............A.
+|   4000: 80 80 80 80 01 04 00 81 06 00 00 00 34 02 30 61   ............4.0a
+|   4016: 01 01 01 01 01 62 01 01 01 01 01 63 01 01 01 01   .....b.....c....
+|   4032: 01 64 01 01 01 65 01 01 01 66 01 01 01 67 01 01   .d...e...f...g..
+|   4048: 01 01 01 68 01 01 01 01 01 69 01 01 01 04 06 06   ...h.....i......
+|   4064: 06 04 04 04 06 06 07 01 03 00 14 03 09 09 09 0f   ................
+|   4080: 0a 03 00 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 8 offset 28672
+|      0: 0a 00 00 00 01 0f fa 00 0f fa 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
+| page 9 offset 32768
+|      0: 0d 00 00 00 03 0f be 00 0f ea 0f d4 0f be 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 14 03   ................
+|   4032: 05 00 17 17 17 61 20 62 20 63 67 20 68 20 69 67   .....a b cg h ig
+|   4048: 20 68 20 69 14 02 05 00 17 17 17 67 20 68 20 69    h i.......g h i
+|   4064: 61 20 62 20 63 67 20 68 20 69 14 01 05 00 17 17   a b cg h i......
+|   4080: 17 61 20 62 20 63 64 20 65 20 66 67 20 68 20 69   .a b cd e fg h i
+| page 10 offset 36864
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| end crash-d8b4a99207c10b.db
+}]} {}
+
+do_catchsql_test 7.1 {
+  SELECT snippet(t1, -1, '.', '..', '[', ']'), 
+         highlight(t1, 2, '[', ']') 
+           FROM t1('g + h') 
+           WHERE rank MATCH 'bm25(1.0, 1.0)' ORDER BY rank;
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 8.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 20480 pagesize 4096 filename crash-d57c01958e48ab.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 05   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 05 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 00 00 00 05 0e 10 00 0f 97 0f 40   ...............@
+|    112: 0e d5 0e 68 0e 10 01 00 00 00 00 00 00 00 00 00   ...h............
+|   3600: 56 05 06 17 1f 1f 01 7d 74 61 62 6c 65 74 31 5f   V.......tablet1_
+|   3616: 63 6f 6e 66 69 67 74 31 5f 63 6f 6e 66 69 67 05   configt1_config.
+|   3632: 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74 31   CREATE TABLE 't1
+|   3648: 5f 63 6f 6e 66 69 67 27 28 6b 20 50 52 49 4d 41   _config'(k PRIMA
+|   3664: 52 59 20 4b 45 59 2c 20 76 29 20 57 49 54 48 4f   RY KEY, v) WITHO
+|   3680: 55 54 20 52 4f 57 49 44 6b 04 07 17 21 21 01 81   UT ROWIDk...!!..
+|   3696: 21 74 61 62 6c 65 74 31 5f 64 6f 63 73 69 7a 65   !tablet1_docsize
+|   3712: 74 31 5f 64 6f 63 73 69 7a 65 04 43 52 45 41 54   t1_docsize.CREAT
+|   3728: 45 20 54 41 42 4c 45 20 27 74 31 5f 64 6f 63 73   E TABLE 't1_docs
+|   3744: 69 7a 65 27 28 69 64 20 49 4e 54 45 47 45 52 20   ize'(id INTEGER 
+|   3760: 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 73 7a 20   PRIMARY KEY, sz 
+|   3776: 42 4c 4f 42 2c 20 6f 72 69 67 69 6e 20 49 4e 54   BLOB, origin INT
+|   3792: 45 47 45 52 29 69 03 07 17 19 19 01 81 2d 74 61   EGER)i.......-ta
+|   3808: 62 6c 65 74 31 5f 69 64 78 74 31 5f 69 64 78 03   blet1_idxt1_idx.
+|   3824: 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74 31   CREATE TABLE 't1
+|   3840: 5f 69 64 78 27 28 73 65 67 69 64 2c 20 74 65 72   _idx'(segid, ter
+|   3856: 6d 2c 20 70 67 6e 6f 2c 20 50 52 49 4d 41 52 59   m, pgno, PRIMARY
+|   3872: 20 4b 45 59 28 73 65 67 69 64 2c 20 74 65 72 6d    KEY(segid, term
+|   3888: 29 29 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44   )) WITHOUT ROWID
+|   3904: 55 02 07 17 1b 1b 01 81 01 74 61 62 6c 65 74 31   U........tablet1
+|   3920: 5f 64 61 74 61 74 31 5f 64 61 74 61 02 43 52 45   _datat1_data.CRE
+|   3936: 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 64 61   ATE TABLE 't1_da
+|   3952: 74 61 27 28 69 64 20 49 4e 54 45 47 45 52 20 50   ta'(id INTEGER P
+|   3968: 52 49 4d 41 52 59 20 4b 45 59 2c 20 62 6c 6f 63   RIMARY KEY, bloc
+|   3984: 6b 20 42 4c 4f 42 29 67 01 07 17 11 11 08 81 3b   k BLOB)g.......;
+|   4000: 74 61 62 6c 65 74 31 74 31 43 52 45 41 54 45 20   tablet1t1CREATE 
+|   4016: 56 49 52 54 55 41 4c 20 54 41 42 4c 45 20 74 31   VIRTUAL TABLE t1
+|   4032: 20 55 53 49 4e 47 20 66 74 73 35 28 61 2c 20 62    USING fts5(a, b
+|   4048: 2c 20 63 6f 6e 74 65 6e 74 3d 27 27 2c 20 63 6f   , content='', co
+|   4064: 6e 74 65 6e 74 6c 65 73 73 5f 64 65 6c 65 74 65   ntentless_delete
+|   4080: 3d 31 2c 20 74 6f 6b 65 6e 64 61 74 61 3d 31 29   =1, tokendata=1)
+| page 2 offset 4096
+|      0: 0d 0f eb 00 03 0e 17 00 0f e2 0e 17 0e 31 00 00   .............1..
+|     16: 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   3600: 00 00 00 00 00 00 00 18 0a 03 00 36 00 00 00 00   ...........6....
+|   3616: ff 00 00 01 01 01 01 00 01 01 01 01 01 01 00 00   ................
+|   3632: 07 83 29 84 80 80 80 80 01 04 00 86 56 00 00 01   ..).........V...
+|   3648: 96 04 30 61 61 61 01 02 02 01 04 02 04 01 08 02   ..0aaa..........
+|   3664: 04 04 04 01 10 02 04 04 04 04 04 04 04 01 20 02   .............. .
+|   3680: 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 01   ................
+|   3696: 40 02 04 04 04 04 04 04 04 04 04 04 04 04 04 04   @...............
+|   3712: 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04   ................
+|   3728: 04 01 81 00 02 04 04 04 04 04 04 04 04 04 04 04   ................
+|   3744: 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04   ................
+|   3760: 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04   ................
+|   3776: 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04   ................
+|   3792: 04 04 04 04 02 02 62 63 01 06 01 01 02 01 03 62   ......bc.......b
+|   3808: 62 62 02 02 03 01 04 03 06 01 08 03 06 06 06 01   bb..............
+|   3824: 10 03 06 06 06 06 06 06 06 01 20 03 06 06 06 06   .......... .....
+|   3840: 06 06 06 06 06 06 06 06 06 06 06 01 40 03 06 06   ............@...
+|   3856: 06 06 06 06 06 06 06 06 06 06 06 06 06 06 06 06   ................
+|   3872: 06 06 06 06 06 06 06 06 06 06 16 06 06 02 02 63   ...............c
+|   3888: 64 02 06 01 01 02 01 03 63 63 63 03 02 05 01 04   d.......ccc.....
+|   3904: 05 0a 01 08 05 0a 0a 0a 01 10 05 0a 0a 0a 0a 0a   ................
+|   3920: 0a 0a 01 20 05 0a 0a 0a 0a 0a 0a 0a 0a 0a 0a 0a   ... ............
+|   3936: 0a 0a 0a 0a 02 02 64 65 03 06 01 01 02 01 03 64   ......de.......d
+|   3952: 64 64 04 02 09 01 04 09 12 01 08 09 12 12 12 01   dd..............
+|   3968: 10 09 12 12 12 12 12 12 12 02 02 65 66 04 06 01   ...........ef...
+|   3984: 01 02 01 03 65 65 65 05 02 11 01 04 11 22 01 08   ....eee.........
+|   4000: 11 22 22 22 02 02 66 67 05 06 01 01 02 01 03 66   ......fg.......f
+|   4016: 56 66 06 02 21 01 04 21 42 02 02 67 68 06 06 01   Vf..!..!B..gh...
+|   4032: 01 02 cb 03 67 67 67 07 02 41 02 02 68 69 07 06   ....ggg..A..hi..
+|   4048: 01 01 02 04 81 13 09 50 09 2e 09 1c 09 12 09 0c   .......P........
+|   4064: 09 08 07 01 03 00 14 07 81 77 07 00 00 00 15 22   .........w......
+|   4080: 00 00 00 00 ff 00 00 01 00 00 00 00 00 00 05 0c   ................
+| page 3 offset 8192
+|      0: 0a 00 00 00 01 0f fa 00 0f fa 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
+| page 4 offset 12288
+|      0: 0d 00 00 00 07 0f c8 00 0f f8 0f f0 0f e8 0f e0   ................
+|     16: 0f d8 0f d0 0f c8 00 00 00 00 00 00 00 00 00 00   ................
+|   4032: 00 00 00 00 00 00 00 00 06 07 04 00 10 09 7f 01   ................
+|   4048: 06 06 04 00 10 09 3f 01 06 05 04 00 10 09 1f 01   ......?.........
+|   4064: 06 04 04 00 10 09 0f 01 06 03 04 00 10 09 07 01   ................
+|   4080: 06 02 04 00 10 09 03 01 06 01 04 00 10 09 01 01   ................
+| page 5 offset 16384
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| end crash-d57c01958e48ab.db
+}]} {}
+
+do_catchsql_test 8.1 {
+  SELECT rowid FROM t1('a* NOT ý‘') ;
+} {0 {1 2 3 4 5 6 7}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 9.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 32768 pagesize 4096 filename crash-c76a16c24c8ba6.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 08   .....@  ........
+|     32: 00 00 00 02 00 00 00 01 00 00 00 09 00 00 00 04   ................
+|     96: 00 00 00 00 0d 0f c7 00 07 0d 92 00 0f 8d 0f 36   ...............6
+|    112: 0e cb 0e 6b 0e 0e 0d b6 0d 92 0d 92 00 00 00 00   ...k............
+|   3472: 00 00 22 08 06 17 11 11 01 31 74 61 62 6c 65 74   .........1tablet
+|   3488: 32 74 32 08 43 52 45 41 54 45 20 54 41 42 4c 45   2t2.CREATE TABLE
+|   3504: 20 74 32 28 78 29 56 07 06 17 1f 1f 01 7d 74 61    t2(x)V.......ta
+|   3520: 62 6c 65 74 31 5f 63 6f 6e 66 69 67 74 31 5f 63   blet1_configt1_c
+|   3536: 6f 6e 66 69 67 07 43 52 45 41 54 45 20 54 41 42   onfig.CREATE TAB
+|   3552: 4c 45 20 27 74 31 5f 63 6f 6e 66 69 67 27 28 6b   LE 't1_config'(k
+|   3568: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29    PRIMARY KEY, v)
+|   3584: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5b 06    WITHOUT ROWID[.
+|   3600: 07 17 21 21 01 81 01 74 61 62 6c 65 74 31 5f 64   ..!!...tablet1_d
+|   3616: 6f 63 73 69 7a 65 74 31 5f 64 6f 63 73 69 7a 65   ocsizet1_docsize
+|   3632: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74   .CREATE TABLE 't
+|   3648: 31 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 49 4e   1_docsize'(id IN
+|   3664: 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45   TEGER PRIMARY KE
+|   3680: 59 2c 20 73 7a 20 42 4c 4f 42 29 5e 05 07 17 21   Y, sz BLOB)^...!
+|   3696: 21 01 81 07 74 61 62 6c 65 74 31 5f 63 6f 6e 74   !...tablet1_cont
+|   3712: 65 6e 74 74 31 5f 63 6f 6e 74 65 6e 74 05 43 52   entt1_content.CR
+|   3728: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63   EATE TABLE 't1_c
+|   3744: 6f 6e 74 65 6e 74 27 28 69 64 20 49 4e 54 45 47   ontent'(id INTEG
+|   3760: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
+|   3776: 63 30 2c 20 63 31 2c 20 63 32 29 69 04 07 17 19   c0, c1, c2)i....
+|   3792: 19 01 81 2d 74 61 62 6c 65 74 31 5f 69 64 78 74   ...-tablet1_idxt
+|   3808: 31 5f 69 64 78 04 43 52 45 41 54 45 20 54 41 42   1_idx.CREATE TAB
+|   3824: 4c 45 20 27 74 31 5f 69 64 78 27 28 73 65 67 69   LE 't1_idx'(segi
+|   3840: 64 2c 20 74 65 72 6d 2c 20 70 67 6e 6f 2c 20 50   d, term, pgno, P
+|   3856: 52 49 4d 41 52 59 20 4b 45 59 28 73 65 67 69 64   RIMARY KEY(segid
+|   3872: 2c 20 74 65 72 6d 29 29 20 57 49 54 48 4f 55 54   , term)) WITHOUT
+|   3888: 20 52 4f 57 49 44 55 03 07 17 1b 1b 01 81 01 74    ROWIDU........t
+|   3904: 61 62 6c 65 74 31 5f 64 61 74 61 74 31 5f 64 61   ablet1_datat1_da
+|   3920: 74 61 03 43 52 45 41 54 45 20 54 41 42 4c 45 20   ta.CREATE TABLE 
+|   3936: 27 74 31 5f 64 61 74 61 27 28 69 64 20 49 4e 54   't1_data'(id INT
+|   3952: 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59   EGER PRIMARY KEY
+|   3968: 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42 29 38 02 06   , block BLOB)8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 35   LE t1 USING fts5
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 00 00 00 00 00 00   (a,b,c).........
+| page 3 offset 8192
+|      0: 0d 00 00 00 03 0c 94 00 0f e6 0f ef 0c 94 00 00   ................
+|   3216: 00 00 00 00 86 4a 84 80 80 80 80 01 04 00 8d 18   .....J..........
+|   3232: 00 00 03 2b 02 30 30 01 02 06 01 02 06 01 02 06   ...+.00.........
+|   3248: 1f 02 03 01 02 03 01 02 03 01 08 32 30 31 36 30   ...........20160
+|   3264: 36 30 39 01 02 07 01 02 07 01 02 07 01 01 34 01   609...........4.
+|   3280: 02 05 01 02 05 01 02 05 01 01 35 01 02 04 01 02   ..........5.....
+|   3296: 04 01 02 04 02 07 30 30 30 30 30 30 30 1c 02 04   ......0000000...
+|   3312: 01 02 04 01 02 04 01 06 62 69 6e 61 72 79 03 06   ........binary..
+|   3328: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3344: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3360: 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02   ................
+|   3376: 03 06 01 02 02 03 06 01 02 02 01 08 63 6f 6d 70   ............comp
+|   3392: 69 6c 65 72 01 02 02 01 02 02 01 02 02 01 06 64   iler...........d
+|   3408: 62 73 74 61 74 07 02 03 01 02 03 01 02 03 02 04   bstat...........
+|   3424: 65 62 75 67 04 02 02 01 02 02 01 02 02 01 06 65   ebug...........e
+|   3440: 6e 61 62 6c 65 07 02 02 01 02 02 01 02 02 01 02   nable...........
+|   3456: 02 01 02 02 01 02 02 01 02 02 01 02 02 01 02 02   ................
+|   3472: 01 02 02 01 02 02 01 02 02 01 02 02 01 02 02 01   ................
+|   3488: 02 02 01 02 02 01 02 02 01 02 02 01 02 02 01 02   ................
+|   3504: 02 01 02 02 02 08 78 74 65 6e 73 69 6f 6e 1f 02   ......xtension..
+|   3520: 04 01 02 04 01 02 04 01 04 66 74 73 34 0a 02 03   .........fts4...
+|   3536: 01 02 03 01 02 03 04 01 35 0d 02 03 01 02 03 01   ........5.......
+|   3552: 02 03 01 03 67 63 63 01 02 03 01 02 03 01 02 03   ....gcc.........
+|   3568: 02 06 65 6f 70 6f 6c 79 10 02 03 01 02 03 01 02   ..eopoly........
+|   3584: 03 01 05 6a 73 6f 6e 31 13 02 03 01 02 03 01 02   ...json1........
+|   3600: 03 01 04 6c 6f 61 64 1f 02 03 01 02 03 01 02 03   ...load.........
+|   3616: 01 03 6d 61 78 1c 02 02 01 02 02 01 02 02 02 05   ..max...........
+|   3632: 65 6d 6f 72 79 1c 02 03 01 02 03 01 02 03 04 04   emory...........
+|   3648: 73 79 73 35 16 02 03 01 02 03 01 02 03 01 06 6e   sys5...........n
+|   3664: 6f 63 61 73 65 02 06 01 02 02 03 06 01 02 02 03   ocase...........
+|   3680: 06 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06   ................
+|   3696: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3712: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3728: 02 01 04 6f 6d 69 74 1f 02 02 01 02 02 01 02 02   ...omit.........
+|   3744: 01 05 72 74 72 65 65 19 02 03 01 02 03 01 02 03   ..rtree.........
+|   3760: 04 02 69 6d 01 06 01 02 02 03 06 01 02 02 03 06   ..im............
+|   3776: 01 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01   ................
+|   3792: 02 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02   ................
+|   3808: 02 03 06 01 02 02 03 06 01 02 02 03 06 01 02 02   ................
+|   3824: 01 0a 74 68 72 65 61 64 73 61 66 65 03 57 34 56   ..threadsafe.W4V
+|   3840: 94 64 91 46 85 84 04 76 74 61 62 07 02 04 01 02   .d.F...vtab.....
+|   3856: 04 01 02 04 01 01 78 01 06 01 01 02 01 06 01 01   ......x.........
+|   3872: 02 01 06 01 01 02 01 06 01 01 02 01 06 01 10 02   ................
+|   3888: 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01   ................
+|   3904: 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06   ................
+|   3920: 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01   ................
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+|   3952: 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01 02   ................
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+|   3984: 06 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06   ................
+|   4000: 01 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01   ................
+|   4016: 01 02 01 06 01 01 02 01 06 01 01 02 01 06 01 01   ................
+|   4032: 02 01 06 01 01 02 01 06 01 01 02 04 15 13 0c 0c   ................
+|   4048: 12 44 13 11 0f 47 13 0f 0c 0e 11 10 0f 0e 10 0f   .D...G..........
+|   4064: 44 0f 10 40 15 0f 07 01 03 00 14 24 5a 24 24 0f   D..@.......$Z$$.
+|   4080: 0a 03 00 24 00 00 00 00 01 01 01 00 01 01 01 01   ...$............
+| page 4 offset 12288
+|      0: 0a 00 00 00 01 0f fa 00 00 00 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 05 04 09 0c 01 02   ................
+| page 5 offset 16384
+|      0: 0d 00 00 00 24 0c 0a 00 0f d8 0f af 0f 86 0f 74   ....$..........t
+|     16: 0f 61 0f 4e 0f 2f 0f 0f 0e ef 0e d7 0e be 0e a5   .a.N./..........
+|     32: 0e 8d 0e 74 0e 5b 0e 40 0e 24 0e 08 0d ef 0d d5   ...t.[.@.$......
+|     48: 0d bb 0d a0 0d 84 0d 68 0d 4f 0d 35 0d 1b 0c fb   .......h.O.5....
+|     64: 0c da 0c b9 0c 99 0c 78 0c 57 0c 3e 0c 24 0c 0a   .......x.W.>.$..
+|   3072: 00 00 00 00 00 00 00 00 00 00 18 24 05 00 25 0f   ...........$..%.
+|   3088: 19 54 48 52 45 41 44 53 41 46 45 3d 30 58 42 49   .THREADSAFE=0XBI
+|   3104: 4e 41 52 59 18 23 05 00 25 0f 19 54 48 52 45 41   NARY.#..%..THREA
+|   3120: 44 53 41 46 45 3d 30 58 4e 4f 43 41 53 45 17 22   DSAFE=0XNOCASE..
+|   3136: 05 00 25 0f 17 54 48 52 45 41 44 53 31 46 45 3d   ..%..THREADS1FE=
+|   3152: 30 58 52 64 52 49 4d 1f 21 05 00 33 0f 19 4f 4d   0XRdRIM.!..3..OM
+|   3168: 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49 4f   IT LOAD EXTENSIO
+|   3184: 4e 58 42 49 4e 41 52 59 1f 20 05 00 33 0f 19 4f   NXBINARY. ..3..O
+|   3200: 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49   MIT LOAD EXTENSI
+|   3216: 4f 4e 58 4e 4f 43 41 53 45 1e 1f 05 00 33 0f 17   ONXNOCASE....3..
+|   3232: 4f 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53   OMIT LOAD EXTENS
+|   3248: 49 4f 4e 58 52 54 52 49 4d 1f 1e 05 00 33 0f 19   IONXRTRIM....3..
+|   3264: 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30 30   MAX MEMORY=50000
+|   3280: 30 30 30 58 42 49 4e 41 52 59 1f 1d 05 00 33 0f   000XBINARY....3.
+|   3296: 19 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30   .MAX MEMORY=5000
+|   3312: 30 30 30 30 58 4e 4f 43 41 53 45 1e 1c 05 00 33   0000XNOCASE....3
+|   3328: 0f 17 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30   ..MAX MEMORY=500
+|   3344: 30 30 30 30 30 58 52 54 52 49 4d 18 1b 05 00 25   00000XRTRIM....%
+|   3360: 0f 19 45 4e 41 42 4c 45 20 52 54 52 45 45 58 42   ..ENABLE RTREEXB
+|   3376: 49 4e 41 52 59 18 1a 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3392: 4c 45 20 52 54 52 45 45 58 4e 4f 43 41 53 45 17   LE RTREEXNOCASE.
+|   3408: 19 05 00 25 0f 17 45 4e 41 42 4c 45 20 52 54 52   ...%..ENABLE RTR
+|   3424: 45 45 58 52 54 52 49 4d 1a 18 05 00 29 0f 19 45   EEXRTRIM....)..E
+|   3440: 4e 41 42 4b 45 20 4d 45 4d 53 59 53 35 58 42 49   NABKE MEMSYS5XBI
+|   3456: 4e 41 52 59 1a 17 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3472: 42 60 2d 45 4d 53 59 53 35 58 4e 4f 43 41 53 45   B`-EMSYS5XNOCASE
+|   3488: 19 16 05 00 29 0f 17 45 4e 41 42 4c 45 20 4d 45   ....)..ENABLE ME
+|   3504: 4d 53 59 53 35 58 52 54 52 49 4d 18 15 05 00 25   MSYS5XRTRIM....%
+|   3520: 0f 19 45 4e 41 42 4c 45 20 4a 53 4f 4e 31 58 42   ..ENABLE JSON1XB
+|   3536: 49 4e 41 52 59 18 14 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3552: 4c 45 20 4a 53 4f 4e 31 58 4e 4f 43 41 53 45 17   LE JSON1XNOCASE.
+|   3568: 13 05 00 25 0f 17 45 4e 41 42 4c 45 20 4a 53 4f   ...%..ENABLE JSO
+|   3584: 4e 31 58 52 54 52 49 4d 1a 12 05 00 29 0f 19 45   N1XRTRIM....)..E
+|   3600: 4e 41 42 4c 45 20 47 45 4f 50 4f 4c 59 58 42 49   NABLE GEOPOLYXBI
+|   3616: 4e 41 52 59 1a 11 05 00 39 0f 19 45 4e 41 42 4c   NARY....9..ENABL
+|   3632: 45 20 47 45 4f 50 4f 4c 59 58 4e 4f 43 41 53 45   E GEOPOLYXNOCASE
+|   3648: 19 10 05 00 29 0f 17 45 4e 41 42 4c 45 20 47 45   ....)..ENABLE GE
+|   3664: 4f 50 4f 4c 59 58 52 54 52 49 4d 17 0f 05 00 23   OPOLYXRTRIM....#
+|   3680: 0f 19 45 4e 41 42 4c 45 20 46 54 53 35 58 42 49   ..ENABLE FTS5XBI
+|   3696: 4e 41 52 59 17 0e 05 00 23 0f 19 45 4e 41 42 4c   NARY....#..ENABL
+|   3712: 45 20 46 54 53 35 58 4e 4f 43 41 53 45 16 0d 05   E FTS5XNOCASE...
+|   3728: 00 23 0f 17 45 4e 41 42 4c 45 20 46 54 53 35 58   .#..ENABLE FTS5X
+|   3744: 52 54 52 49 4d 17 0c 05 00 23 0f 19 45 4e 41 42   RTRIM....#..ENAB
+|   3760: 4c 45 20 46 54 53 34 58 42 49 4e 41 52 59 17 0b   LE FTS4XBINARY..
+|   3776: 05 00 23 0f 19 45 4e 41 42 4c 45 20 46 54 53 34   ..#..ENABLE FTS4
+|   3792: 58 4e 4f 43 41 53 45 16 0a 05 00 23 0f 17 45 4e   XNOCASE....#..EN
+|   3808: 41 42 4c 45 20 46 54 53 34 58 52 54 52 49 4d 1e   ABLE FTS4XRTRIM.
+|   3824: 09 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3840: 54 41 54 20 56 54 41 42 58 42 49 4e 41 52 59 1e   TAT VTABXBINARY.
+|   3856: 08 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3872: 54 41 54 20 56 54 24 15 48 4e 4f 43 41 53 45 1d   TAT VT$.HNOCASE.
+|   3888: 07 05 00 31 0f 17 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3904: 54 41 54 20 56 54 41 42 58 52 54 52 49 4d 11 06   TAT VTABXRTRIM..
+|   3920: 05 00 17 0f 19 44 45 42 55 47 58 42 49 4e 41 52   .....DEBUGXBINAR
+|   3936: 59 11 05 05 00 17 0f 19 44 45 42 55 47 58 4e 4f   Y.......DEBUGXNO
+|   3952: 43 41 53 45 10 04 05 00 17 0f 17 44 45 42 55 47   CASE.......DEBUG
+|   3968: 58 52 54 52 49 4d 27 03 05 00 43 0f 19 43 4f 4d   XRTRIM'...C..COM
+|   3984: 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e 30 20   PILER=gcc-5.4.0 
+|   4000: 32 30 31 36 30 36 30 39 58 42 49 4e 41 52 59 27   20160609XBINARY'
+|   4016: 02 05 00 43 0f 19 43 4f 4d 50 49 4c 45 52 3c 67   ...C..COMPILER<g
+|   4032: 63 63 2d 35 2e 34 2e 30 20 32 30 31 36 30 36 30   cc-5.4.0 2016060
+|   4048: 39 58 4e 4f 43 41 53 45 26 01 05 00 43 0f 17 43   9XNOCASE&...C..C
+|   4064: 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e   OMPILER=gcc-5.4.
+|   4080: 30 20 32 30 31 36 30 36 30 39 58 52 54 52 49 4d   0 20160609XRTRIM
+| page 6 offset 20480
+|      0: 0d 00 00 00 24 0e e0 00 0f f8 0f f0 0f e8 0f e0   ....$...........
+|     16: 0f d8 0f d0 0f c8 0f c0 0f b8 0f b0 0f a8 0f a0   ................
+|     32: 1f 98 0f 90 0f 88 0f 80 0f 78 0f 70 0f 68 0f 60   .........x.p.h.`
+|     48: 0f 58 0f 50 0f 48 0f 40 0f 38 0f 30 0f 28 0f 20   .X.P.H.@.8.0.(. 
+|     64: 0f 18 0f 10 0f 08 0f 00 0e f8 0e f0 0e e8 0e e0   ................
+|   3808: 06 24 03 00 12 02 01 01 06 23 03 00 12 02 01 01   .$.......#......
+|   3824: 06 22 03 00 12 02 01 01 06 21 03 00 12 03 01 01   .........!......
+|   3840: 06 20 03 00 12 03 01 01 06 1f 03 00 12 03 01 01   . ..............
+|   3856: 06 1e 03 00 12 03 01 01 06 1d 03 00 12 03 01 01   ................
+|   3872: 06 1c 03 00 12 03 01 01 06 1b 03 00 12 02 01 01   ................
+|   3888: 06 1a 03 00 12 02 01 01 06 19 03 00 12 02 01 01   ................
+|   3904: 06 18 03 00 12 02 01 01 06 17 03 00 12 02 01 01   ................
+|   3920: 06 15 f3 00 12 02 01 01 06 15 03 00 12 02 01 01   ................
+|   3936: 06 14 03 00 12 02 01 01 06 13 03 00 12 02 01 01   ................
+|   3952: 06 12 03 00 12 02 01 01 06 11 03 00 12 02 01 01   ................
+|   3968: 06 10 03 00 12 02 01 01 06 0f 03 00 12 02 01 01   ................
+|   3984: 06 0e 03 00 12 02 01 01 06 0d 03 00 12 02 01 01   ................
+|   4000: 06 0c 03 00 12 02 01 01 06 0b 03 00 12 02 01 01   ................
+|   4016: 06 0a 03 00 12 02 01 01 06 09 03 00 12 03 01 01   ................
+|   4032: 06 08 03 00 12 03 01 01 06 07 03 00 12 03 01 01   ................
+|   4048: 06 06 03 00 12 01 01 01 06 05 03 00 12 01 01 01   ................
+|   4064: 06 04 03 00 12 01 01 01 06 03 03 00 12 06 01 01   ................
+|   4080: 06 02 03 00 12 06 01 01 06 01 03 00 12 06 01 01   ................
+| page 7 offset 24576
+|      0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04   ........version.
+| page 8 offset 28672
+|      0: 0d 00 00 00 03 0f d6 00 0f f4 0f e9 0f d6 00 00   ................
+|   4048: 00 00 00 00 00 00 11 03 02 2b 69 6e 74 65 67 72   .........+integr
+|   4064: 69 74 79 2d 63 68 65 63 6b 09 02 02 1b 72 65 62   ity-check....reb
+|   4080: 75 69 6c 64 0a 01 02 1d 6f 70 74 69 00 00 00 00   uild....opti....
+| end crash-c76a16c24c8ba6.db
+}]} {}
+
+#.testctrl prng_seed 1 db
+#.testctrl internal_functions
+#.testctrl json_selfcheck on
+#
+
+do_execsql_test 9.1 { 
+  UPDATE t1 SET b=quote(zeroblob(current_date)) WHERE t1 MATCH 't*';
+  SAVEPOINT a;
+  UPDATE t1 SET b=quote(zeroblob(current_date)) WHERE t1 MATCH 't*';
+  INSERT INTO t1(t1,rank) VALUES('secure-delete',1);
+}
+do_catchsql_test 9.2 {
+  DELETE FROM t1;
+} {1 {database disk image is malformed}}
+
+sqlite3_fts5_may_be_corrupt 0
+finish_test
+
diff --git a/ext/fts5/test/fts5corrupt6.test b/ext/fts5/test/fts5corrupt6.test
new file mode 100644
index 0000000000000000000000000000000000000000..6570871e3fdbd544ce529dcf507d96084b95488b
--- /dev/null
+++ b/ext/fts5/test/fts5corrupt6.test
@@ -0,0 +1,54 @@
+# 2015 Apr 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file tests that FTS5 handles corrupt databases (i.e. internal
+# inconsistencies in the backing tables) correctly. In this case 
+# "correctly" means without crashing.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5corrupt6
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+sqlite3_fts5_may_be_corrupt 1
+database_may_be_corrupt
+
+proc editblock {block} {
+  binary format Sa* 20000 [string range $block 2 end]
+}
+db func editblock editblock
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE ft USING fts5(abc, def);
+  WITH a(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM a WHERE i<1000
+  )
+  INSERT INTO ft SELECT 
+      'abc abc abc abc abc abc abc abc abc abc',
+      'def def def def def def def def def def'
+  FROM a;
+  UPDATE ft_data SET block = editblock(block) WHERE id=(
+    SELECT id FROM ft_data ORDER BY id LIMIT 1 OFFSET 5
+  );
+}
+
+do_catchsql_test 1.1 {
+  SELECT rowid FROM ft('def') ORDER BY rowid DESC LIMIT 1 OFFSET 9999;
+} {1 {database disk image is malformed}}
+
+
+sqlite3_fts5_may_be_corrupt 0
+finish_test
+
diff --git a/ext/fts5/test/fts5corrupt7.test b/ext/fts5/test/fts5corrupt7.test
new file mode 100644
index 0000000000000000000000000000000000000000..41e359f422785a30584fc5605c0b4bd71c752caa
--- /dev/null
+++ b/ext/fts5/test/fts5corrupt7.test
@@ -0,0 +1,128 @@
+# 2023 April 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5corrupt7
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+sqlite3_fts5_may_be_corrupt 1
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x);
+  INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
+}
+
+set doc [string repeat "a b " 30]
+
+do_execsql_test 1.1 {
+  BEGIN;
+    INSERT INTO t1(rowid, x) VALUES(123, $doc);
+    INSERT INTO t1(rowid, x) VALUES(124, $doc);
+  COMMIT;
+}
+
+execsql_pp {
+  SELECT id, fts5_decode(id, block), quote(block) FROM t1_data
+}
+
+set rows [db eval { SELECT rowid FROM t1_data }]
+db_save_and_close
+
+foreach r $rows {
+  db_restore_and_reopen
+
+  proc edit_block {b} {
+    binary scan $b c* in
+    set out [lreplace $in 0 1 255 255]
+    binary format c* $out
+  }
+  db func edit_block edit_block
+
+  do_execsql_test 1.2.$r.1 {
+    UPDATE t1_data SET block = edit_block(block) WHERE rowid=$r;
+  }
+
+  do_execsql_test 1.2.$r.2 {
+    INSERT INTO t1(t1, rank) VALUES('secure-delete', 1);
+  }
+
+  do_test 1.2.$r.3 {
+    catchsql { DELETE FROM t1 WHERE rowid=123; }
+    catchsql { DELETE FROM t1 WHERE rowid=124; }
+    set {} {}
+  } {}
+
+  db close
+}
+
+foreach r $rows {
+set r 137438953475
+  db_restore_and_reopen
+
+  proc edit_block {b} {
+    binary scan $b c* in
+    set out [lreplace $in end end 127]
+    binary format c* $out
+  }
+  db func edit_block edit_block
+
+  do_execsql_test 1.2.$r.1 {
+    UPDATE t1_data SET block = edit_block(block) WHERE rowid=$r;
+  }
+
+  do_execsql_test 1.2.$r.2 {
+    INSERT INTO t1(t1, rank) VALUES('secure-delete', 1);
+  }
+
+  do_test 1.2.$r.3 {
+    catchsql { DELETE FROM t1 WHERE rowid=124; }
+    catchsql { DELETE FROM t1 WHERE rowid=123; }
+    set {} {}
+  } {}
+
+  db close
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x);
+  BEGIN;
+    INSERT INTO t1 VALUES('abc');
+    INSERT INTO t1 VALUES('b d d d');
+  COMMIT;
+  INSERT INTO t1(t1, rank) VALUES('secure-delete', 1);
+}
+
+execsql_pp {
+  SELECT id, quote(block) FROM t1_data
+}
+
+do_execsql_test 2.1 {
+  SELECT quote(block) FROM t1_data WHERE id > 10;
+}        {X'0000001A04306162630102020101620202020101640206030303040806'}
+
+do_execsql_test 2.2 {
+  UPDATE t1_data SET 
+    block=X'0000001A04306162630102025501620202020101640206030303040806'
+  WHERE id>10
+}
+
+do_catchsql_test 2.3 {
+  DELETE FROM t1 WHERE rowid = 1
+} {1 {database disk image is malformed}}
+
+finish_test
diff --git a/ext/fts5/test/fts5corrupt8.test b/ext/fts5/test/fts5corrupt8.test
new file mode 100644
index 0000000000000000000000000000000000000000..d642920e45f83ce06985023b1f2d281a6c7d54bb
--- /dev/null
+++ b/ext/fts5/test/fts5corrupt8.test
@@ -0,0 +1,94 @@
+# 2024 Aug 28
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5corrupt8
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x);
+}
+
+do_execsql_test 1.1 {
+  UPDATE t1_data SET block='hello world' WHERE id=10
+}
+
+db close
+sqlite3 db test.db
+
+do_catchsql_test 1.2 {
+  SELECT * FROM t1
+} {1 {database disk image is malformed}}
+do_catchsql_test 1.3 {
+  DROP TABLE t1
+} {0 {}}
+do_execsql_test 1.4 {
+  SELECT * FROM sqlite_schema
+}
+
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x);
+}
+do_execsql_test 2.1 {
+  UPDATE t1_config SET v=555 WHERE k='version'
+}
+db close
+sqlite3 db test.db
+do_catchsql_test 2.2 {
+  SELECT * FROM t1
+} {1 {invalid fts5 file format (found 555, expected 4 or 5) - run 'rebuild'}}
+do_catchsql_test 2.3 {
+  DROP TABLE t1
+} {1 {invalid fts5 file format (found 555, expected 4 or 5) - run 'rebuild'}}
+do_test 2.4 {
+  sqlite3_fts5_drop_corrupt_table db main t1
+} {}
+do_execsql_test 2.5 {
+  SELECT * FROM sqlite_schema
+}
+
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x);
+}
+do_execsql_test 3.1 {
+  DELETE FROM t1_config;
+}
+db close
+sqlite3 db test.db
+do_catchsql_test 3.2 {
+  SELECT * FROM t1
+} {1 {invalid fts5 file format (found 0, expected 4 or 5) - run 'rebuild'}}
+do_catchsql_test 3.3 {
+  DROP TABLE t1
+} {1 {invalid fts5 file format (found 0, expected 4 or 5) - run 'rebuild'}}
+
+
+do_test 3.4 {
+  sqlite3_db_config db DEFENSIVE 1
+} {1}
+do_test 3.5 {
+  sqlite3_fts5_drop_corrupt_table db main t1
+} {}
+do_test 3.6 {
+  sqlite3_db_config db DEFENSIVE -1
+} {1}
+do_execsql_test 3.7 {
+  SELECT * FROM sqlite_schema
+}
+
+finish_test
+
diff --git a/ext/fts5/test/fts5delete.test b/ext/fts5/test/fts5delete.test
new file mode 100644
index 0000000000000000000000000000000000000000..024f89594c0ccbefb7a613b24c01accacebad5e7
--- /dev/null
+++ b/ext/fts5/test/fts5delete.test
@@ -0,0 +1,170 @@
+# 2017 May 12
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS5 module.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5delete
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+fts5_aux_test_functions db
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x);
+  WITH s(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<5000
+  )
+  INSERT INTO t1(rowid, x) SELECT i, (i/2)*2 FROM s;
+}
+
+do_test 1.1 {
+  execsql BEGIN
+  for {set i 1} {$i<=5000} {incr i} {
+    if {$i % 2} {
+      execsql { INSERT INTO t1 VALUES($i) }
+    } else {
+      execsql { DELETE FROM t1 WHERE rowid = $i }
+    }
+  }
+  execsql COMMIT
+} {}
+
+do_test 1.2 {
+  execsql { INSERT INTO t1(t1, rank) VALUES('usermerge', 2); }
+  for {set i 0} {$i < 5} {incr i} {
+    execsql { INSERT INTO t1(t1, rank) VALUES('merge', 1) }
+    execsql { INSERT INTO t1(t1) VALUES('integrity-check') }
+  }
+} {}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 2.0 {
+  CREATE TABLE test (
+      id INTEGER PRIMARY KEY,
+      name TEXT,
+      value TEXT
+  );
+  CREATE VIRTUAL TABLE test_idx USING fts5(
+      name, content=test, content_rowid=id
+  );
+}
+
+do_catchsql_test 2.1 {
+  INSERT INTO test_idx (test_idx, rowid, name) VALUES('delete', 1, 'quick');
+} {1 {database disk image is malformed}}
+
+do_catchsql_test 2.2 {
+  INSERT INTO test_idx(rowid, name) VALUES(123, 'one one one');
+  INSERT INTO test_idx (test_idx, rowid, name) VALUES('delete', 123, 'one');
+  INSERT INTO test_idx (test_idx, rowid, name) VALUES('delete', 123, 'one');
+} {1 {database disk image is malformed}}
+
+do_execsql_test 2.3 {
+  DROP TABLE test_idx;
+  CREATE VIRTUAL TABLE test_idx USING fts5(
+      name, content=test, content_rowid=id
+  );
+
+  INSERT INTO test_idx(rowid, name) VALUES(123, 'one one one');
+  INSERT INTO test_idx(rowid, name) VALUES(124, 'two two two');
+  INSERT INTO test_idx(rowid, name) VALUES(125, 'two two two');
+  INSERT INTO test_idx (test_idx, rowid, name) VALUES('delete', 123, 'one');
+  INSERT INTO test_idx (test_idx, rowid, name) VALUES('delete', 123, 'one');
+  INSERT INTO test_idx (test_idx, rowid, name) VALUES('delete', 123, 'one');
+}
+
+do_catchsql_test 2.4 {
+  SELECT rowid FROM test_idx WHERE test_idx MATCH 'two' ORDER BY rank;
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE tx USING fts5(a, b, c, d, content=);
+  INSERT INTO tx(rowid, a, c) VALUES(1, 'abc def', 'a b c');
+  INSERT INTO tx(rowid, a, c) VALUES(5, 'a b c', 'a b d def');
+}
+do_execsql_test 3.1 {
+  INSERT INTO tx(tx, rowid, a, b, c, d) 
+    VALUES('delete', 5, 'a b c', NULL, 'a b d def', NULL);
+}
+do_execsql_test 3.2 {
+  INSERT INTO tx(tx) VALUES('integrity-check');
+}
+do_execsql_test 3.3 {
+  INSERT INTO tx(tx, rowid, a, b, c, d) 
+    VALUES('delete', 1, 'abc def', NULL, 'a b c', NULL);
+}
+do_execsql_test 3.4 {
+  INSERT INTO tx(tx) VALUES('integrity-check');
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE ft1 USING fts5(a, b UNINDEXED, 
+      content='', contentless_unindexed=1
+  );
+  CREATE VIRTUAL TABLE ft2 USING fts5(a, b UNINDEXED, 
+      content='', contentless_unindexed=1, contentless_delete=1
+  );
+
+  INSERT INTO ft1(rowid, a, b) VALUES(1, 'one', 'i');
+  INSERT INTO ft1(rowid, a, b) VALUES(2, 'two', 'ii');
+  INSERT INTO ft1(rowid, a, b) VALUES(3, 'three', 'iii');
+  INSERT INTO ft2(rowid, a, b) VALUES(1, 'one', 'i');
+  INSERT INTO ft2(rowid, a, b) VALUES(2, 'two', 'ii');
+  INSERT INTO ft2(rowid, a, b) VALUES(3, 'three', 'iii');
+}
+
+do_catchsql_test 4.1 {
+  DELETE FROM ft1 WHERE rowid=2
+} {1 {cannot DELETE from contentless fts5 table: ft1}}
+do_catchsql_test 4.2 {
+  DELETE FROM ft2 WHERE rowid=2
+} {0 {}}
+
+do_catchsql_test 4.3 {
+  INSERT INTO ft1(ft1, rowid, a) VALUES('delete', 2, 'two');
+} {0 {}}
+do_catchsql_test 4.2 {
+  INSERT INTO ft2(ft2, rowid, a) VALUES('delete', 2, 'two');
+} {1 {'delete' may not be used with a contentless_delete=1 table}}
+
+do_execsql_test 4.3 {
+  SELECT rowid, * FROM ft1;
+} {
+  1 {} i
+  3 {} iii
+}
+do_execsql_test 4.4 {
+  SELECT rowid, * FROM ft2;
+} {
+  1 {} i
+  3 {} iii
+}
+
+do_execsql_test 4.5 {
+  SELECT * FROM ft1_content
+} {1 i 3 iii}
+
+do_execsql_test 4.6 {
+  SELECT * FROM ft2_content
+} {1 i 3 iii}
+
+finish_test
+
diff --git a/ext/fts5/test/fts5detail.test b/ext/fts5/test/fts5detail.test
new file mode 100644
index 0000000000000000000000000000000000000000..267ce6187c514a23480cd5c1ccaf1a46299a39c4
--- /dev/null
+++ b/ext/fts5/test/fts5detail.test
@@ -0,0 +1,247 @@
+# 2015 December 18
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS5 module.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5detail
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+fts5_aux_test_functions db
+
+#--------------------------------------------------------------------------
+# Simple tests.
+#
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, b, c, detail=col);
+  INSERT INTO t1 VALUES('h d g', 'j b b g b', 'i e i d h g g'); -- 1
+  INSERT INTO t1 VALUES('h j d', 'j h d a h', 'f d d g g f b'); -- 2
+  INSERT INTO t1 VALUES('j c i', 'f f h e f', 'c j i j c h f'); -- 3
+  INSERT INTO t1 VALUES('e g g', 'g e d h i', 'e d b e g d c'); -- 4
+  INSERT INTO t1 VALUES('b c c', 'd i h a f', 'd i j f a b c'); -- 5
+  INSERT INTO t1 VALUES('e d e', 'b c j g d', 'a i f d h b d'); -- 6
+  INSERT INTO t1 VALUES('g h e', 'b c d i d', 'e f c i f i c'); -- 7
+  INSERT INTO t1 VALUES('c f j', 'j j i e a', 'h a c f d h e'); -- 8
+  INSERT INTO t1 VALUES('a h i', 'c i a f a', 'c f d h g d g'); -- 9
+  INSERT INTO t1 VALUES('j g g', 'e f e f f', 'h j b i c g e'); -- 10
+}
+
+do_execsql_test 1.1 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+}
+
+foreach {tn match res} {
+  1 "a:a" {9}
+  2 "b:g" {1 4 6}
+  3 "c:h" {1 3 6 8 9 10}
+} {
+  do_execsql_test 1.2.$tn.1 {
+    SELECT rowid FROM t1($match);
+  } $res
+
+  do_execsql_test 1.2.$tn.2 {
+    SELECT rowid FROM t1($match || '*');
+  } $res
+}
+
+do_catchsql_test 1.3.1 {
+  SELECT rowid FROM t1('h + d');
+} {1 {fts5: phrase queries are not supported (detail!=full)}}
+
+do_catchsql_test 1.3.2 {
+  SELECT rowid FROM t1('NEAR(h d)');
+} {1 {fts5: NEAR queries are not supported (detail!=full)}}
+
+
+#-------------------------------------------------------------------------
+# integrity-check with both detail= and prefix= options.
+#
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE t2 USING fts5(a, detail=col, prefix="1");
+  INSERT INTO t2(a) VALUES('aa ab');
+}
+
+#db eval {SELECT rowid, fts5_decode(rowid, block) aS r FROM t2_data} {puts $r}
+
+do_execsql_test 2.1 {
+  INSERT INTO t2(t2) VALUES('integrity-check');
+}
+
+do_execsql_test 2.2 {
+  SELECT fts5_test_poslist(t2) FROM t2('aa');
+} {0.0.0}
+
+do_execsql_test 2.3 {
+  SELECT fts5_test_collist(t2) FROM t2('aa');
+} {0.0}
+
+set ::pc 0
+#puts [nearset {{ax bx cx}} -pc ::pc -near 10 -- b*]
+#exit
+
+#-------------------------------------------------------------------------
+# Check that the xInstCount, xInst, xPhraseFirst and xPhraseNext APIs
+# work with detail=col tables.
+#
+set data {
+  1  {abb aca aca} {aba bab aab aac caa} {abc cbc ccb bcc bab ccb aca}
+  2  {bca aca acb} {ccb bcc bca aab bcc} {bab aaa aac cbb bba aca abc}
+  3  {cca abc cab} {aab aba bcc cac baa} {bab cbb acb aba aab ccc cca}
+  4  {ccb bcb aba} {aba bbb bcc cac bbb} {cbb aaa bca bcc aab cac aca}
+  5  {bca bbc cac} {aba cbb cac cca aca} {cab acb cbc ccb cac bbb bcb}
+  6  {acc bba cba} {bab bbc bbb bcb aca} {bca ccc cbb aca bac ccc ccb}
+  7  {aba bab aaa} {abb bca aac bcb bcc} {bcb bbc aba aaa cba abc acc}
+  8  {cab aba aaa} {ccb aca caa bbc bcc} {aaa abc ccb bbb cac cca abb}
+  9  {bcb bab bac} {bcb cba cac bbb abc} {aba aca cbb acb abb ccc ccb}
+  10 {aba aab ccc} {abc ccc bcc cab bbb} {aab bcc cbb ccc aaa bac baa}
+  11 {bab acb cba} {aac cab cab bca cbc} {aab cbc aac baa ccb acc cac}
+  12 {ccc cbb cbc} {aaa aab bcc aac bbc} {cbc cbc bac bac ccc bbc acc}
+  13 {cab bbc abc} {bbb bab bba aca bab} {baa bbb aab bbb ccb bbb ccc}
+  14 {bbc cab caa} {acb aac abb cba acc} {cba bba bba acb abc abb baa}
+  15 {aba cca bcc} {aaa acb abc aab ccb} {cca bcb acc aaa caa cca cbc}
+  16 {bcb bba aba} {cbc acb cab caa ccb} {aac aaa bbc cab cca cba abc}
+  17 {caa cbb acc} {ccb bcb bca aaa bcc} {bbb aca bcb bca cbc cbc cca}
+  18 {cbb bbc aac} {ccc bbc aaa aab baa} {cab cab cac cca bbc abc bbc}
+  19 {ccc acc aaa} {aab cbb bca cca caa} {bcb aca aca cab acc bac bcc}
+  20 {aab ccc bcb} {bbc cbb bbc aaa bcc} {cbc aab ccc aaa bcb bac cbc}
+  21 {aba cab ccc} {bbc cbc cba acc bbb} {acc aab aac acb aca bca acb}
+  22 {bcb bca baa} {cca bbc aca ccb cbb} {aab abc bbc aaa cab bcc bcc}
+  23 {cac cbb caa} {bbc aba bbb bcc ccb} {bbc bbb cab bbc cac abb acc}
+  24 {ccb acb caa} {cab bba cac bbc aac} {aac bca abc cab bca cab bcb}
+  25 {bbb aca bca} {bcb acc ccc cac aca} {ccc acb acc cac cac bba bbc}
+  26 {bab acc caa} {caa cab cac bac aca} {aba cac caa acc bac ccc aaa}
+  27 {bca bca aaa} {ccb aca bca aaa baa} {bab acc aaa cca cba cca bac}
+  28 {ccb cac cac} {bca abb bba bbc baa} {aca ccb aac cab ccc cab caa}
+  29 {abc bca cab} {cac cbc cbb ccc bcc} {bcc aaa aaa acc aac cac aac}
+  30 {aca acc acb} {aab aac cbb caa acb} {acb bbc bbc acc cbb bbc aac}
+  31 {aba aca baa} {aca bcc cab bab acb} {bcc acb baa bcb bbc acc aba}
+  32 {abb cbc caa} {cba abb bbb cbb aca} {bac aca caa cac caa ccb bbc}
+  33 {bcc bcb bcb} {cca cab cbc abb bab} {caa bbc aac bbb cab cba aaa}
+  34 {caa cab acc} {ccc ccc bcc acb bcc} {bac bba aca bcb bba bcb cac}
+  35 {bac bcb cba} {bcc acb bbc cba bab} {abb cbb abc abc bac acc cbb}
+  36 {cab bab ccb} {bca bba bab cca acc} {acc aab bcc bac acb cbb caa}
+  37 {aca cbc cab} {bba aac aca aac aaa} {baa cbb cba aba cab bca bcb}
+  38 {acb aab baa} {baa bab bca bbc bbb} {abc baa acc aba cab baa cac}
+  39 {bcb aac cba} {bcb baa caa cac bbc} {cbc ccc bab ccb bbb caa aba}
+  40 {cba ccb abc} {cbb caa cba aac bab} {cbb bbb bca bbb bac cac bca}
+}
+
+set data {
+  1  {abb aca aca} {aba bab aab aac caa} {abc cbc ccb bcc bab ccb aca}
+}
+
+proc matchdata {expr {bAsc 1}} {
+
+  set tclexpr [db one {
+    SELECT fts5_expr_tcl($expr, 'nearset $cols -pc ::pc', 'x', 'y', 'z')
+  }]
+  set res [list]
+
+  #puts "$expr -> $tclexpr"
+  foreach {id x y z} $::data {
+    set cols [list $x $y $z]
+    set ::pc 0
+    #set hits [lsort -command instcompare [eval $tclexpr]]
+    set hits [eval $tclexpr]
+    if {[llength $hits]>0} {
+      lappend res [list $id $hits]
+    }
+  }
+
+  if {$bAsc} {
+    set res [lsort -integer -increasing -index 0 $res]
+  } else {
+    set res [lsort -integer -decreasing -index 0 $res]
+  }
+
+  return [concat {*}$res]
+}
+
+foreach {tn tbl} {
+  1 { CREATE VIRTUAL TABLE t3 USING fts5(x, y, z, detail=col) }
+  2 { CREATE VIRTUAL TABLE t3 USING fts5(x, y, z, detail=none) }
+} {
+  reset_db
+  fts5_aux_test_functions db
+  execsql $tbl
+  foreach {id x y z} $data {
+    execsql { INSERT INTO t3(rowid, x, y, z) VALUES($id, $x, $y, $z) }
+  }
+  foreach {tn2 expr} {
+    1 aaa    2 ccc    3 bab    4 aac
+    5 aa*    6 cc*    7 ba*    8 aa*
+    9 a*     10 b*   11 c*
+  } {
+
+    set res [matchdata $expr]
+
+    do_execsql_test 3.$tn.$tn2.1 {
+      SELECT rowid, fts5_test_poslist(t3) FROM t3($expr)
+    } $res
+
+    do_execsql_test 3.$tn.$tn2.2 {
+      SELECT rowid, fts5_test_poslist2(t3) FROM t3($expr)
+    } $res
+  }
+}
+
+#-------------------------------------------------------------------------
+# Simple tests for detail=none tables.
+#
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE t4 USING fts5(a, b, c, detail=none);
+  INSERT INTO t4 VALUES('a b c', 'b c d', 'e f g');
+  INSERT INTO t4 VALUES('1 2 3', '4 5 6', '7 8 9');
+}
+
+do_catchsql_test 4.1 {
+  SELECT * FROM t4('a:a')
+} {1 {fts5: column queries are not supported (detail=none)}}
+
+do_catchsql_test 4.2 {
+  SELECT * FROM t4('a:a &')
+} {1 {fts5: syntax error near "&"}}
+
+#-------------------------------------------------------------------------
+# Test that for the same content detail=none uses less space than 
+# detail=col, and that detail=col uses less space than detail=full
+#
+reset_db
+do_test 5.1 {
+  foreach {tbl detail} {t1 none t2 col t3 full} {
+    execsql "CREATE VIRTUAL TABLE $tbl USING fts5(x, y, z, detail=$detail)"
+    foreach {rowid x y z} $::data {
+      execsql "INSERT INTO $tbl (rowid, x, y, z) VALUES(\$rowid, \$x, \$y, \$z)"
+    }
+  }
+} {}
+
+do_execsql_test 5.2 {
+  SELECT 
+    (SELECT sum(length(block)) from t1_data) <
+    (SELECT sum(length(block)) from t2_data)
+} {1}
+
+do_execsql_test 5.3 {
+  SELECT 
+    (SELECT sum(length(block)) from t2_data) <
+    (SELECT sum(length(block)) from t3_data)
+} {1}
+
+
+
+finish_test
diff --git a/ext/fts5/test/fts5determin.test b/ext/fts5/test/fts5determin.test
new file mode 100644
index 0000000000000000000000000000000000000000..c9094edfa19cea9958fa1b5ab88dc4819e08f2fd
--- /dev/null
+++ b/ext/fts5/test/fts5determin.test
@@ -0,0 +1,65 @@
+# 2016 March 21
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS5 module.
+#
+# Specifically, that the fts5 module is deterministic. At one point, when
+# segment ids were allocated using sqlite3_randomness(), this was not the
+# case.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5aa
+return_if_no_fts5 
+
+proc do_determin_test {tn} {
+  uplevel [list
+    do_execsql_test $tn {
+      SELECT (SELECT md5sum(id, block) FROM t1_data)==
+             (SELECT md5sum(id, block) FROM t2_data),
+             (SELECT md5sum(id, block) FROM t1_data)==
+             (SELECT md5sum(id, block) FROM t3_data)
+    } {1 1}
+  ]
+}
+
+foreach_detail_mode $::testprefix {
+  do_execsql_test 1.0 {
+    CREATE VIRTUAL TABLE t1 USING fts5(a, b, prefix="1 2", detail=%DETAIL%);
+    CREATE VIRTUAL TABLE t2 USING fts5(a, b, prefix="1 2", detail=%DETAIL%);
+    CREATE VIRTUAL TABLE t3 USING fts5(a, b, prefix="1 2", detail=%DETAIL%);
+  }
+
+  do_test 1.1 {
+    foreach t {t1 t2 t3} {
+      execsql [string map [list TBL $t] {
+        INSERT INTO TBL VALUES('a b c', 'd e f');
+        INSERT INTO TBL VALUES('c1 c2 c3', 'c1 c2 c3');
+        INSERT INTO TBL VALUES('xyzxyzxyz', 'xyzxyzxyz');
+      }]
+    }
+  } {}
+
+  do_determin_test 1.2
+
+  do_test 1.3 {
+    foreach t {t1 t2 t3} {
+      execsql [string map [list TBL $t] {
+        INSERT INTO TBL(TBL) VALUES('optimize');
+      }]
+    }
+  } {}
+
+  do_determin_test 1.4
+}
+
+
+finish_test
diff --git a/ext/fts5/test/fts5dlidx.test b/ext/fts5/test/fts5dlidx.test
new file mode 100644
index 0000000000000000000000000000000000000000..db82db1c2b00eb58a1c85dbe7563dd97bc347182
--- /dev/null
+++ b/ext/fts5/test/fts5dlidx.test
@@ -0,0 +1,197 @@
+# 2015 April 21
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This test is focused on uses of doclist-index records.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5dlidx
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+if { $tcl_platform(wordSize)<8 } {
+  finish_test
+  return
+}
+
+foreach_detail_mode $testprefix {
+
+proc do_fb_test {tn sql res} {
+  set res2 [lsort -integer -decr $res]
+  uplevel [list do_execsql_test $tn.1 $sql $res]
+  uplevel [list do_execsql_test $tn.2 "$sql ORDER BY rowid DESC" $res2]
+}
+
+# This test populates the FTS5 table with $nEntry entries. Rows are 
+# numbered from 0 to ($nEntry-1). The rowid for row $i is:
+#
+#   ($iFirst + $i*$nStep)
+#
+# Each document is of the form "a b c a b c a b c...". If the row number ($i)
+# is an integer multiple of $spc1, then an "x" token is appended to the
+# document. If it is *also* a multiple of $spc2, a "y" token is also appended.
+#
+proc do_dlidx_test1 {tn spc1 spc2 nEntry iFirst nStep} {
+
+  do_execsql_test $tn.0 { DELETE FROM t1 }
+
+  set xdoc [list]
+  set ydoc [list]
+
+  execsql BEGIN
+  for {set i 0} {$i < $nEntry} {incr i} {
+    set rowid [expr $i * $nStep]
+    set doc [string trim [string repeat "a b c " 100]]
+    if {($i % $spc1)==0} {
+      lappend xdoc $rowid
+      append doc " x" 
+      if {($i % $spc2)==0} { 
+        lappend ydoc $rowid
+        append doc " y" 
+      }
+    }
+    execsql { INSERT INTO t1(rowid, x) VALUES($rowid, $doc) }
+  }
+  execsql COMMIT
+
+  do_test $tn.1 {
+    execsql { INSERT INTO t1(t1) VALUES('integrity-check') }
+  } {}
+  
+  do_fb_test $tn.3.1 { SELECT rowid FROM t1 WHERE t1 MATCH 'a AND x' } $xdoc
+  do_fb_test $tn.3.2 { SELECT rowid FROM t1 WHERE t1 MATCH 'x AND a' } $xdoc
+  
+  do_fb_test $tn.4.1 { SELECT rowid FROM t1 WHERE t1 MATCH 'a AND y' } $ydoc
+  do_fb_test $tn.4.2 { SELECT rowid FROM t1 WHERE t1 MATCH 'y AND a' } $ydoc
+  
+  if {[detail_is_full]} {
+    do_fb_test $tn.5.1 { 
+      SELECT rowid FROM t1 WHERE t1 MATCH 'a + b + c + x' } $xdoc
+    do_fb_test $tn.5.2 { 
+      SELECT rowid FROM t1 WHERE t1 MATCH 'b + c + x + y' } $ydoc
+  }
+}
+
+
+foreach {tn pgsz} {
+  1 32
+  2 200
+} {
+  do_execsql_test $tn.0 { 
+    DROP TABLE IF EXISTS t1;
+    CREATE VIRTUAL TABLE t1 USING fts5(x, detail=%DETAIL%);
+    INSERT INTO t1(t1, rank) VALUES('pgsz', $pgsz);
+  }
+
+  do_dlidx_test1 1.$tn.1     10 100 10000 0 1000
+  do_dlidx_test1 1.$tn.2     10 10  10000 0 128
+  do_dlidx_test1 1.$tn.3     10 10  66    0 36028797018963970
+  do_dlidx_test1 1.$tn.4     10 10  50    0 150000000000000000
+  do_dlidx_test1 1.$tn.5     10 10  200   0 [expr 1<<55]
+  do_dlidx_test1 1.$tn.6      10 10  30    0 [expr 1<<58]
+}
+
+proc do_dlidx_test2 {tn nEntry iFirst nStep} {
+  set str [string repeat "a " 500]
+  execsql {
+    BEGIN;
+    DROP TABLE IF EXISTS t1;
+    CREATE VIRTUAL TABLE t1 USING fts5(x, detail=%DETAIL%);
+    INSERT INTO t1(t1, rank) VALUES('pgsz', 64);
+    INSERT INTO t1 VALUES('b a');
+
+    WITH iii(ii, i) AS (
+      SELECT 1,     $iFirst UNION ALL 
+      SELECT ii+1, i+$nStep FROM iii WHERE ii<$nEntry
+    )
+    INSERT INTO t1(rowid,x) SELECT i, $str FROM iii;
+    COMMIT;
+  }
+
+  do_execsql_test $tn.1 {
+    SELECT rowid FROM t1 WHERE t1 MATCH 'b AND a'
+  } {1}
+  do_execsql_test $tn.2 {
+    SELECT rowid FROM t1 WHERE t1 MATCH 'b AND a' ORDER BY rowid DESC
+  } {1}
+}
+
+do_dlidx_test2 2.1 [expr 20] [expr 1<<57] [expr (1<<57) + 128]
+
+#--------------------------------------------------------------------
+#
+reset_db
+
+set ::vocab [list \
+  IteratorpItercurrentlypointstothefirstrowidofadoclist \
+  Thereisadoclistindexassociatedwiththefinaltermonthecurrent \
+  pageIfthecurrenttermisthelasttermonthepageloadthe \
+  doclistindexfromdiskandinitializeaniteratoratpIterpDlidx \
+  IteratorpItercurrentlypointstothefirstrowidofadoclist \
+  Thereisadoclistindexassociatedwiththefinaltermonthecurrent \
+  pageIfthecurrenttermisthelasttermonthepageloadthe \
+  doclistindexfromdiskandinitializeaniteratoratpIterpDlidx \
+]
+proc rnddoc {} {
+  global vocab
+  set nVocab [llength $vocab]
+  set ret [list]
+  for {set i 0} {$i < 64} {incr i} {
+    lappend ret [lindex $vocab [expr $i % $nVocab]]
+  }
+  set ret
+}
+db func rnddoc rnddoc
+
+do_execsql_test 3.1 {
+  CREATE VIRTUAL TABLE abc USING fts5(a, detail=%DETAIL%);
+  INSERT INTO abc(abc, rank) VALUES('pgsz', 32);
+
+  INSERT INTO abc VALUES ( rnddoc() );
+  INSERT INTO abc VALUES ( rnddoc() );
+  INSERT INTO abc VALUES ( rnddoc() );
+  INSERT INTO abc VALUES ( rnddoc() );
+
+  INSERT INTO abc SELECT rnddoc() FROM abc;
+  INSERT INTO abc SELECT rnddoc() FROM abc;
+}
+
+
+
+do_execsql_test 3.2 {
+  SELECT rowid FROM abc WHERE abc 
+  MATCH 'IteratorpItercurrentlypointstothefirstrowidofadoclist' 
+  ORDER BY rowid DESC;
+} {16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1}
+
+do_execsql_test 3.3 {
+  INSERT INTO abc(abc) VALUES('integrity-check');
+  INSERT INTO abc(abc) VALUES('optimize');
+  INSERT INTO abc(abc) VALUES('integrity-check');
+}
+
+set v [lindex $vocab 0]
+set i 0
+foreach v $vocab {
+  do_execsql_test 3.4.[incr i] {
+    SELECT rowid FROM abc WHERE abc MATCH $v
+  } {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16}
+}
+
+} ;# foreach_detail_mode
+
+
+
+finish_test
diff --git a/ext/fts5/test/fts5doclist.test b/ext/fts5/test/fts5doclist.test
new file mode 100644
index 0000000000000000000000000000000000000000..5b1becb5147ca2939db6c8254753d633257dc13c
--- /dev/null
+++ b/ext/fts5/test/fts5doclist.test
@@ -0,0 +1,67 @@
+# 2015 April 21
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This test is focused on edge cases in the doclist format.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5doclist
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+
+#-------------------------------------------------------------------------
+# Create a table with 1000 columns. Then add some large documents to it.
+# All text is in the right most column of the table.
+#
+do_test 1.0 {
+  set cols [list]
+  for {set i 0} {$i < 900} {incr i} { lappend cols "x$i" }
+  execsql "CREATE VIRTUAL TABLE ccc USING fts5([join $cols ,])"
+} {}
+
+db func rnddoc fts5_rnddoc 
+do_execsql_test 1.1 {
+  WITH ii(i) AS (SELECT 1 UNION SELECT i+1 FROM ii WHERE i<100)
+  INSERT INTO ccc(x899) SELECT rnddoc(500) FROM ii;
+}
+
+do_execsql_test 1.2 {
+  INSERT INTO ccc(ccc) VALUES('integrity-check');
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 2.1 {
+  CREATE VIRTUAL TABLE tx USING fts5(x);
+}
+
+set doc [string repeat "abc " 5000]
+do_execsql_test 2.2 {
+  BEGIN;
+    INSERT INTO tx(rowid, x) VALUES(-9000000000000000000, $doc);
+    INSERT INTO tx(rowid, x) VALUES(9000000000000000000, $doc);
+  COMMIT;
+}
+
+do_execsql_test 2.3 {
+  SELECT rowid FROM tx('abc');
+} {
+  -9000000000000000000
+   9000000000000000000
+}
+
+finish_test
diff --git a/ext/fts5/test/fts5ea.test b/ext/fts5/test/fts5ea.test
new file mode 100644
index 0000000000000000000000000000000000000000..49c2f2753a189bb12cd08c98a2159fda558f304b
--- /dev/null
+++ b/ext/fts5/test/fts5ea.test
@@ -0,0 +1,99 @@
+# 2014 June 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+# Test the fts5 expression parser directly using the fts5_expr() SQL
+# test function.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5ea
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+proc do_syntax_error_test {tn expr err} {
+  set ::se_expr $expr
+  do_catchsql_test $tn {SELECT fts5_expr($se_expr)} [list 1 $err]
+}
+
+proc do_syntax_test {tn expr res} {
+  set ::se_expr $expr
+  do_execsql_test $tn {SELECT fts5_expr($se_expr)} [list $res]
+}
+
+foreach {tn expr res} {
+  1  {abc}                           {"abc"}
+  2  {abc def}                       {"abc" AND "def"}
+  3  {abc*}                          {"abc" *}
+  4  {"abc def ghi" *}               {"abc" + "def" + "ghi" *}
+  5  {one AND two}                   {"one" AND "two"}
+  6  {one+two}                       {"one" + "two"}
+  7  {one AND two OR three}          {("one" AND "two") OR "three"}
+  8  {one OR two AND three}          {"one" OR ("two" AND "three")}
+  9  {NEAR(one two)}                 {NEAR("one" "two", 10)}
+  10 {NEAR("one three"* two, 5)}     {NEAR("one" + "three" * "two", 5)}
+  11 {a OR b NOT c}                  {"a" OR ("b" NOT "c")}
+  12 "\x20one\x20two\x20three"       {"one" AND "two" AND "three"}
+  13 "\x09one\x0Atwo\x0Dthree"       {"one" AND "two" AND "three"}
+  14 {"abc""def"}                    {"abc" + "def"}
+} {
+  do_execsql_test 1.$tn {SELECT fts5_expr($expr)} [list $res]
+}
+
+foreach {tn expr res} {
+  1 {c1:abc}                           
+    {c1 : "abc"}
+  2 {c2 : NEAR(one two) c1:"hello world"} 
+    {c2 : NEAR("one" "two", 10) AND c1 : "hello" + "world"}
+} {
+  do_execsql_test 2.$tn {SELECT fts5_expr($expr, 'c1', 'c2')} [list $res]
+}
+
+foreach {tn expr err} {
+  1 {AND}                          {fts5: syntax error near "AND"}
+  2 {abc def AND}                  {fts5: syntax error near ""}
+  3 {abc OR AND}                   {fts5: syntax error near "AND"}
+  4 {(a OR b) abc}                 {fts5: syntax error near "abc"}
+  5 {NEaR (a b)}                   {fts5: syntax error near "NEaR"}
+  6 {NEa (a b)}                    {fts5: syntax error near "NEa"}
+  7 {(a OR b) NOT c)}              {fts5: syntax error near ")"}
+  8 {nosuch: a nosuch2: b}         {no such column: nosuch}
+  9 {addr: a nosuch2: b}           {no such column: nosuch2}
+  10 {NOT}                          {fts5: syntax error near "NOT"}
+  11 {a AND "abc}                  {unterminated string}
+
+  12 {NEAR(a b, xyz)}              {expected integer, got "xyz"}
+  13 {NEAR(a b, // )}              {fts5: syntax error near "/"}
+  14 {NEAR(a b, "xyz" )}           {expected integer, got ""xyz""}
+} {
+  do_catchsql_test 3.$tn {SELECT fts5_expr($expr, 'name', 'addr')} [list 1 $err]
+}
+
+#-------------------------------------------------------------------------
+# Experiment with a tokenizer that considers " to be a token character.
+#
+do_execsql_test 4.0 {
+  SELECT fts5_expr('a AND """"', 'x', 'tokenize="unicode61 tokenchars ''""''"');
+} {{"a" AND """"}}
+
+#-------------------------------------------------------------------------
+# Experiment with a tokenizer that considers " to be a token character.
+#
+do_catchsql_test 5.0 {
+  SELECT fts5_expr('abc | def');
+} {1 {fts5: syntax error near "|"}}
+
+
+
+finish_test
diff --git a/ext/fts5/test/fts5eb.test b/ext/fts5/test/fts5eb.test
new file mode 100644
index 0000000000000000000000000000000000000000..bee9683c3cdf434e1196acc56b438902896ca2b6
--- /dev/null
+++ b/ext/fts5/test/fts5eb.test
@@ -0,0 +1,103 @@
+# 2014 June 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5eb
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+proc do_syntax_error_test {tn expr err} {
+  set ::se_expr $expr
+  do_catchsql_test $tn {SELECT fts5_expr($se_expr)} [list 1 $err]
+}
+
+proc do_syntax_test {tn expr res} {
+  set ::se_expr $expr
+  do_execsql_test $tn {SELECT fts5_expr($se_expr)} [list $res]
+}
+
+foreach {tn expr res} {
+  1  {abc}                            {"abc"}
+  2  {abc ""}                         {"abc"}
+  3  {""}                             {}
+  4  {abc OR ""}                      {"abc" OR ""}
+  5  {abc NOT ""}                     {"abc" NOT ""}
+  6  {abc AND ""}                     {"abc" AND ""}
+  7  {"" OR abc}                      {"" OR "abc"}
+  8  {"" NOT abc}                     {"" NOT "abc"}
+  9  {"" AND abc}                     {"" AND "abc"}
+  10 {abc + "" + def}                 {"abc" + "def"}
+  11 {abc "" def}                     {"abc" AND "def"}
+  12 {r+e OR w}                       {"r" + "e" OR "w"}
+
+  13 {a AND b NOT c}                  {"a" AND ("b" NOT "c")}
+  14 {a OR b NOT c}                   {"a" OR ("b" NOT "c")}
+  15 {a NOT b AND c}                  {("a" NOT "b") AND "c"}
+  16 {a NOT b OR c}                   {("a" NOT "b") OR "c"}
+
+  17 {a AND b OR c}                   {("a" AND "b") OR "c"}
+  18 {a OR b AND c}                   {"a" OR ("b" AND "c")}
+
+} {
+  do_execsql_test 1.$tn {SELECT fts5_expr($expr)} [list $res]
+}
+
+do_catchsql_test 2.1 {
+  SELECT fts5_expr()
+} {1 {wrong number of arguments to function fts5_expr}}
+
+do_catchsql_test 2.2 {
+  SELECT fts5_expr_tcl()
+} {1 {wrong number of arguments to function fts5_expr_tcl}}
+
+do_catchsql_test 2.3 {
+  SELECT fts5_expr('')
+} {1 {fts5: syntax error near ""}}
+
+do_catchsql_test 2.4 {
+  SELECT fts5_expr(NULL)
+} {1 {fts5: syntax error near ""}}
+
+do_catchsql_test 2.5 {
+  SELECT fts5_expr(NULL, NULL)
+} {1 {parse error in ""}}
+
+for {set i 0} {$i < 255} {incr i} {
+  do_test 2.6.$i {
+    lindex [catchsql {sELECT fts5_expr(NULL, char($i));}] 0
+  } 1
+}
+
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE e1 USING fts5(text, tokenize = 'porter unicode61');
+  INSERT INTO e1 VALUES ('just a few words with a / inside');
+}
+do_execsql_test 3.1 {
+  SELECT rowid, format('%g',bm25(e1)) FROM e1 WHERE e1 MATCH '"just"' ORDER BY rank;
+} {1 -1e-06}
+do_execsql_test 3.2 {
+  SELECT rowid FROM e1 WHERE e1 MATCH '"/" OR "just"'
+} 1
+do_execsql_test 3.3 {
+  SELECT rowid, format('%g',bm25(e1)) FROM e1 WHERE e1 MATCH '"/" OR "just"' ORDER BY rank;
+} {1 -1e-06}
+
+do_execsql_test 3.4 "
+  SELECT fts5_expr_tcl('e AND \" \"');
+" {{AND [nearset -- {e}] [{}]}}
+
+
+finish_test
diff --git a/ext/fts5/test/fts5expr.test b/ext/fts5/test/fts5expr.test
new file mode 100644
index 0000000000000000000000000000000000000000..49be61d9c43cd91f4b842941fc7e0eb74ed3c370
--- /dev/null
+++ b/ext/fts5/test/fts5expr.test
@@ -0,0 +1,52 @@
+# 2024 August 8
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS5 module.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5expr
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE x1 USING fts5(a);
+  INSERT INTO x1(rowid, a) VALUES (113, 'fts5 expr test');
+}
+
+do_execsql_test 1.1 {
+  SELECT rowid FROM x1('expr');
+} {113}
+
+for {set ii 0} {$ii < 300} {incr ii} {
+  set expr "expr "
+  append expr [string repeat "NOT abcd " $ii]
+
+  if {$ii<257} {
+    set res {0 113}
+  } else {
+    set res {1 {fts5 expression tree is too large (maximum depth 256)}}
+  }
+  do_catchsql_test 1.1.$ii {
+    SELECT rowid FROM x1($expr)
+  } $res
+}
+
+do_execsql_test 1.2 {
+  SELECT rowid FROM x1 WHERE a MATCH '"..."'
+} {}
+
+finish_test
+
diff --git a/ext/fts5/test/fts5fault1.test b/ext/fts5/test/fts5fault1.test
new file mode 100644
index 0000000000000000000000000000000000000000..96025133e45789788ffd073200dfaf9678cc25c1
--- /dev/null
+++ b/ext/fts5/test/fts5fault1.test
@@ -0,0 +1,353 @@
+# 2014 June 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS5 module.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+source $testdir/malloc_common.tcl
+set testprefix fts5fault1
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+# Simple tests:
+#
+#   1: CREATE VIRTUAL TABLE
+#   2: INSERT statement
+#   3: DELETE statement
+#   4: MATCH expressions
+#
+#
+
+faultsim_save_and_close
+do_faultsim_test 1 -faults ioerr-t* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { CREATE VIRTUAL TABLE t1 USING fts5(a, b, prefix='1, 2, 3') }
+} -test {
+  faultsim_test_result {0 {}} {1 {vtable constructor failed: t1}}
+}
+
+reset_db
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, b, prefix='1, 2, 3');
+}
+faultsim_save_and_close
+do_faultsim_test 2 -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { 
+    INSERT INTO t1 VALUES('a b c', 'a bc def ghij klmno');
+  }
+} -test {
+  faultsim_test_result {0 {}} {1 {vtable constructor failed: t1}}
+}
+
+reset_db
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, b, prefix='1, 2, 3');
+  INSERT INTO t1 VALUES('a b c', 'a bc def ghij klmno');
+}
+faultsim_save_and_close
+do_faultsim_test 3 -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { DELETE FROM t1 }
+} -test {
+  faultsim_test_result {0 {}} {1 {vtable constructor failed: t1}}
+}
+
+reset_db
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE t2 USING fts5(a, b);
+  INSERT INTO t2 VALUES('m f a jj th q gi ar',   'hj n h h sg j i m');
+  INSERT INTO t2 VALUES('nr s t g od j kf h',    'sb h aq rg op rb n nl');
+  INSERT INTO t2 VALUES('do h h pb p p q fr',    'c rj qs or cr a l i');
+  INSERT INTO t2 VALUES('lk gp t i lq mq qm p',  'h mr g f op ld aj h');
+  INSERT INTO t2 VALUES('ct d sq kc qi k f j',   'sn gh c of g s qt q');
+  INSERT INTO t2 VALUES('d ea d d om mp s ab',   'dm hg l df cm ft pa c');
+  INSERT INTO t2 VALUES('tc dk c jn n t sr ge',  'a a kn bc n i af h');
+  INSERT INTO t2 VALUES('ie ii d i b sa qo rf',  'a h m aq i b m fn');
+  INSERT INTO t2 VALUES('gs r fo a er m h li',   'tm c p gl eb ml q r');
+  INSERT INTO t2 VALUES('k fe fd rd a gi ho kk', 'ng m c r d ml rm r');
+}
+faultsim_save_and_close
+
+foreach {tn expr res} {
+  1 { dk  }           7
+  2 { m f }           1
+  3 { f*  }           {1 3 4 5 6 8 9 10}
+  4 { m OR f }        {1 4 5 8 9 10}
+  5 { sn + gh }       {5}
+  6 { "sn gh" }       {5}
+  7 { NEAR(r a, 5) }  {9}
+  8 { m* f* }         {1 4 6 8 9 10}
+  9 { m* + f* }       {1 8}
+  10 { c NOT p }       {5 6 7 10}
+} {
+  do_faultsim_test 4.$tn -prep {
+    faultsim_restore_and_reopen
+  } -body "
+    execsql { SELECT rowid FROM t2 WHERE t2 MATCH '$expr' }
+  " -test "
+    faultsim_test_result {[list 0 $res]} {1 {vtable constructor failed: t2}}
+  "
+}
+
+
+#-------------------------------------------------------------------------
+# The following tests use a larger database populated with random data.
+#
+# The database page size is set to 512 bytes and the FTS5 page size left
+# at the default 1000 bytes. This means that reading a node may require
+# pulling an overflow page from disk, which is an extra opportunity for
+# an error to occur.
+#
+reset_db
+do_execsql_test 5.0.1 { 
+  PRAGMA main.page_size = 512;
+  CREATE VIRTUAL TABLE x1 USING fts5(a, b);
+  PRAGMA main.page_size;
+} {512}
+
+proc rnddoc {n} {
+  set map [list 0 a  1 b  2 c  3 d  4 e  5 f  6 g  7 h  8 i  9 j]
+  set doc [list]
+  for {set i 0} {$i < $n} {incr i} {
+    lappend doc [string map $map [format %.3d [expr int(rand()*1000)]]]
+  }
+  set doc
+}
+db func rnddoc rnddoc
+
+do_execsql_test 5.0.2 {
+  WITH r(a, b) AS (
+    SELECT rnddoc(6), rnddoc(6) UNION ALL
+    SELECT rnddoc(6), rnddoc(6) FROM r
+  )
+  INSERT INTO x1 SELECT * FROM r LIMIT 10000;
+}
+
+set res [db one {
+  SELECT count(*) FROM x1 WHERE x1.a LIKE '%abc%' OR x1.b LIKE '%abc%'}
+]
+
+do_faultsim_test 5.1 -faults oom* -body {
+  execsql { SELECT count(*) FROM x1 WHERE x1 MATCH 'abc' }
+} -test {
+  faultsim_test_result [list 0 $::res]
+}
+do_faultsim_test 5.2 -faults oom* -body {
+  execsql { SELECT count(*) FROM x1 WHERE x1 MATCH 'abcd' }
+} -test {
+  faultsim_test_result [list 0 0]
+}
+
+proc test_astar {a b} {
+  return [expr { [regexp {a[^ ][^ ]} $a] || [regexp {a[^ ][^ ]} $b] }]
+}
+db func test_astar test_astar
+
+set res [db one { SELECT count(*) FROM x1 WHERE test_astar(a, b) } ]
+do_faultsim_test 5.3 -faults oom* -body {
+  execsql { SELECT count(*) FROM x1 WHERE x1 MATCH 'a*' }
+} -test {
+  faultsim_test_result [list 0 $::res]
+}
+
+do_faultsim_test 5.4 -faults oom* -prep {
+  db close
+  sqlite3 db test.db
+} -body {
+  execsql { INSERT INTO x1 VALUES('a b c d', 'e f g h') }
+} -test {
+  faultsim_test_result [list 0 {}]
+}
+
+do_faultsim_test 5.5.1 -faults oom* -body {
+  execsql { 
+    SELECT count(fts5_decode(rowid, block)) FROM x1_data WHERE rowid=1
+  }
+} -test {
+  faultsim_test_result [list 0 1]
+}
+do_faultsim_test 5.5.2 -faults oom* -body {
+  execsql { 
+    SELECT count(fts5_decode(rowid, block)) FROM x1_data WHERE rowid=10
+  }
+} -test {
+  faultsim_test_result [list 0 1]
+}
+do_faultsim_test 5.5.3 -faults oom* -body {
+  execsql { 
+    SELECT count(fts5_decode(rowid, block)) FROM x1_data WHERE rowid = (
+      SELECT min(rowid) FROM x1_data WHERE rowid>20
+    )
+  }
+} -test {
+  faultsim_test_result [list 0 1]
+}
+do_faultsim_test 5.5.4 -faults oom* -body {
+  execsql { 
+    SELECT count(fts5_decode(rowid, block)) FROM x1_data WHERE rowid = (
+      SELECT max(rowid) FROM x1_data 
+    )
+  }
+} -test {
+  faultsim_test_result [list 0 1]
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 6.0 {
+  CREATE VIRTUAL TABLE x1 USING fts5(x);
+  INSERT INTO x1(x1, rank) VALUES('automerge', 0);
+
+  INSERT INTO x1 VALUES('a b c'); -- 1
+  INSERT INTO x1 VALUES('a b c'); -- 2
+  INSERT INTO x1 VALUES('a b c'); -- 3
+  INSERT INTO x1 VALUES('a b c'); -- 4
+  INSERT INTO x1 VALUES('a b c'); -- 5
+  INSERT INTO x1 VALUES('a b c'); -- 6
+  INSERT INTO x1 VALUES('a b c'); -- 7
+  INSERT INTO x1 VALUES('a b c'); -- 8
+  INSERT INTO x1 VALUES('a b c'); -- 9
+  INSERT INTO x1 VALUES('a b c'); -- 10
+  INSERT INTO x1 VALUES('a b c'); -- 11
+  INSERT INTO x1 VALUES('a b c'); -- 12
+  INSERT INTO x1 VALUES('a b c'); -- 13
+  INSERT INTO x1 VALUES('a b c'); -- 14
+  INSERT INTO x1 VALUES('a b c'); -- 15
+
+  SELECT count(*) FROM x1_data;
+} {17}
+
+faultsim_save_and_close
+
+do_faultsim_test 6.1 -faults oom* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { INSERT INTO x1 VALUES('d e f') }
+} -test {
+  faultsim_test_result [list 0 {}]
+  if {$testrc==0} {
+    set nCnt [db one {SELECT count(*) FROM x1_data}]
+    if {$nCnt!=3} { error "expected 3 entries but there are $nCnt" }
+  }
+}
+
+do_faultsim_test 6.2 -faults oom* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { INSERT INTO x1(x1, rank) VALUES('pgsz', 32) }
+} -test {
+  faultsim_test_result [list 0 {}]
+}
+
+do_faultsim_test 6.3 -faults oom-* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { INSERT INTO x1(x1) VALUES('integrity-check') }
+} -test {
+  faultsim_test_result [list 0 {}]
+}
+
+do_faultsim_test 6.4 -faults oom-* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { INSERT INTO x1(x1) VALUES('optimize') }
+} -test {
+  faultsim_test_result [list 0 {}]
+}
+
+#-------------------------------------------------------------------------
+#
+do_faultsim_test 7.0 -faults oom* -prep {
+  catch { db close }
+} -body {
+  sqlite3 db test.db
+} -test {
+  faultsim_test_result [list 0 {}] {1 {}} {1 {initialization of fts5 failed: }}
+}
+
+#-------------------------------------------------------------------------
+# A prefix query against a large document set.
+#
+proc rnddoc {n} {
+  set map [list 0 a  1 b  2 c  3 d  4 e  5 f  6 g  7 h  8 i  9 j]
+  set doc [list]
+  for {set i 0} {$i < $n} {incr i} {
+    lappend doc "x[string map $map [format %.3d [expr int(rand()*1000)]]]"
+  }
+  set doc
+}
+
+reset_db
+db func rnddoc rnddoc
+
+do_test 8.0 {
+  execsql { CREATE VIRTUAL TABLE x1 USING fts5(a) }
+  set ::res [list]
+  for {set i 1} {$i<100} {incr i 1} {
+    execsql { INSERT INTO x1 VALUES( rnddoc(50) ) }
+    lappend ::res $i
+  }
+} {}
+
+do_faultsim_test 8.1 -faults oom* -prep {
+} -body {
+  execsql { 
+    SELECT rowid FROM x1 WHERE x1 MATCH 'x*'
+  }
+} -test {
+  faultsim_test_result [list 0 $::res]
+}
+
+#-------------------------------------------------------------------------
+# Segment promotion.
+#
+do_test 9.0 {
+  reset_db
+  db func rnddoc fts5_rnddoc
+  execsql {
+    CREATE VIRTUAL TABLE s2 USING fts5(x);
+    INSERT INTO s2(s2, rank) VALUES('pgsz', 32);
+    INSERT INTO s2(s2, rank) VALUES('automerge', 0);
+  }
+
+  for {set i 1} {$i <= 16} {incr i} {
+    execsql { INSERT INTO s2 VALUES(rnddoc(5)) }
+  }
+  fts5_level_segs s2
+} {0 1}
+set insert_doc [db one {SELECT rnddoc(160)}]
+faultsim_save_and_close
+
+do_faultsim_test 9.1 -faults oom-* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { INSERT INTO s2 VALUES($::insert_doc) }
+} -test {
+  faultsim_test_result {0 {}}
+  if {$testrc==0} {
+    set ls [fts5_level_segs s2]
+    if {$ls != "2 0"} { error "fts5_level_segs says {$ls}" }
+  }
+}
+
+
+
+finish_test
diff --git a/ext/fts5/test/fts5fault2.test b/ext/fts5/test/fts5fault2.test
new file mode 100644
index 0000000000000000000000000000000000000000..aa21f7b4814e5ec3c539751c8342317d7f41bcc1
--- /dev/null
+++ b/ext/fts5/test/fts5fault2.test
@@ -0,0 +1,139 @@
+# 2014 June 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+# This file is focused on OOM errors.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+source $testdir/malloc_common.tcl
+set testprefix fts5fault2
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+set doc [string trim [string repeat "x y z " 200]]
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, x);
+  CREATE VIRTUAL TABLE x1 USING fts5(x, content='t1', content_rowid='a');
+  INSERT INTO x1(x1, rank) VALUES('pgsz', 32);
+  WITH input(a,b) AS (
+    SELECT 1, $doc UNION ALL
+    SELECT a+1, ($doc || CASE WHEN (a+1)%100 THEN '' ELSE ' xyz' END) 
+    FROM input WHERE a < 1000
+  )
+  INSERT INTO t1 SELECT * FROM input;
+
+  INSERT INTO x1(x1) VALUES('rebuild');
+}
+
+do_faultsim_test 1.1 -faults oom-* -prep {
+} -body {
+  execsql { SELECT rowid FROM x1 WHERE x1 MATCH 'z AND xyz' }
+} -test {
+  faultsim_test_result {0 {100 200 300 400 500 600 700 800 900 1000}}
+}
+
+do_faultsim_test 1.2 -faults oom-* -prep {
+} -body {
+  execsql { SELECT rowid FROM x1 WHERE x1 MATCH 'z + xyz' ORDER BY 1 DESC}
+} -test {
+  faultsim_test_result {0 {1000 900 800 700 600 500 400 300 200 100}}
+}
+
+#-------------------------------------------------------------------------
+# OOM within a query that accesses the in-memory hash table. 
+#
+reset_db 
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE "a b c" USING fts5(a, b, c);
+  INSERT INTO "a b c" VALUES('one two', 'x x x', 'three four');
+  INSERT INTO "a b c" VALUES('nine ten', 'y y y', 'two two');
+}
+
+do_faultsim_test 2.1 -faults oom-trans* -prep {
+  execsql {
+    BEGIN;
+      INSERT INTO "a b c" VALUES('one one', 'z z z', 'nine ten');
+  }
+} -body {
+  execsql { SELECT rowid FROM "a b c" WHERE "a b c" MATCH 'one' }
+} -test {
+  faultsim_test_result {0 {1 3}}
+  catchsql { ROLLBACK }
+}
+
+#-------------------------------------------------------------------------
+# OOM within an 'optimize' operation that writes multiple pages to disk.
+#
+reset_db 
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE zzz USING fts5(z);
+  INSERT INTO zzz(zzz, rank) VALUES('pgsz', 32);
+  INSERT INTO zzz VALUES('a b c d');
+  INSERT INTO zzz SELECT 'c d e f' FROM zzz;
+  INSERT INTO zzz SELECT 'e f g h' FROM zzz;
+  INSERT INTO zzz SELECT 'i j k l' FROM zzz;
+  INSERT INTO zzz SELECT 'l k m n' FROM zzz;
+  INSERT INTO zzz SELECT 'o p q r' FROM zzz;
+}
+faultsim_save_and_close
+
+do_faultsim_test 3.1 -faults oom-trans* -prep {
+  faultsim_restore_and_reopen
+  execsql { SELECT rowid FROM zzz }
+} -body {
+  execsql { INSERT INTO zzz(zzz) VALUES('optimize') }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+#-------------------------------------------------------------------------
+# OOM within an 'integrity-check' operation.
+#
+reset_db 
+db func rnddoc fts5_rnddoc
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE zzz USING fts5(z);
+  INSERT INTO zzz(zzz, rank) VALUES('pgsz', 32);
+  WITH ii(i) AS (SELECT 1 UNION SELECT i+1 FROM ii WHERE i<10)
+  INSERT INTO zzz SELECT rnddoc(10) || ' xccc' FROM ii;
+}
+
+do_faultsim_test 4.1 -faults oom-trans* -prep {
+} -body {
+  execsql { INSERT INTO zzz(zzz) VALUES('integrity-check') }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+#-------------------------------------------------------------------------
+# OOM while parsing a tokenize=option
+#
+reset_db
+faultsim_save_and_close
+do_faultsim_test 5.0 -faults oom-* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { 
+    CREATE VIRTUAL TABLE uio USING fts5(a, b, 
+      tokenize="porter 'ascii'",
+      content="another table",
+      content_rowid="somecolumn"
+    );
+  }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+finish_test
diff --git a/ext/fts5/test/fts5fault3.test b/ext/fts5/test/fts5fault3.test
new file mode 100644
index 0000000000000000000000000000000000000000..a294692dbec3e352fb644220cb2542289b4beb3a
--- /dev/null
+++ b/ext/fts5/test/fts5fault3.test
@@ -0,0 +1,112 @@
+# 2014 June 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+# This file is focused on OOM errors.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+source $testdir/malloc_common.tcl
+set testprefix fts5fault3
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+#-------------------------------------------------------------------------
+# An OOM while resuming a partially completed segment merge.
+#
+db func rnddoc fts5_rnddoc 
+do_test 1.0 {
+  expr srand(0)
+  execsql {
+    CREATE VIRTUAL TABLE xx USING fts5(x);
+    INSERT INTO xx(xx, rank) VALUES('pgsz', 32);
+    INSERT INTO xx(xx, rank) VALUES('automerge', 16);
+  }
+  for {set i 0} {$i < 10} {incr i} {
+    execsql {
+      BEGIN;
+        INSERT INTO xx(x) VALUES(rnddoc(20));
+        INSERT INTO xx(x) VALUES(rnddoc(20));
+        INSERT INTO xx(x) VALUES(rnddoc(20));
+      COMMIT
+    }
+  }
+
+  execsql {
+    INSERT INTO xx(xx, rank) VALUES('automerge', 2);
+    INSERT INTO xx(xx, rank) VALUES('merge', 50);
+  }
+} {}
+faultsim_save_and_close
+
+do_faultsim_test 1 -faults oom-* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { INSERT INTO xx(xx, rank) VALUES('merge', 1) }
+} -test {
+  faultsim_test_result [list 0 {}]
+}
+
+#-------------------------------------------------------------------------
+# An OOM while flushing an unusually large term to disk.
+#
+reset_db
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE xx USING fts5(x);
+  INSERT INTO xx(xx, rank) VALUES('pgsz', 32);
+}
+faultsim_save_and_close
+
+set    doc "a long term abcdefghijklmnopqrstuvwxyz "
+append doc "and then abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz "
+append doc [string repeat "abcdefghijklmnopqrstuvwxyz" 10]
+
+do_faultsim_test 2 -faults oom-* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { INSERT INTO xx(x) VALUES ($::doc) }
+} -test {
+  faultsim_test_result [list 0 {}]
+}
+
+#-------------------------------------------------------------------------
+# An OOM while flushing an unusually large term to disk.
+#
+reset_db
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE xx USING fts5(x);
+}
+faultsim_save_and_close
+
+set doc [fts5_rnddoc 1000]
+do_faultsim_test 3.1 -faults oom-* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { INSERT INTO xx(x) VALUES ($::doc) }
+} -test {
+  faultsim_test_result [list 0 {}]
+}
+
+set doc [string repeat "abc " 100]
+do_faultsim_test 3.2 -faults oom-* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { INSERT INTO xx(x) VALUES ($::doc) }
+} -test {
+  faultsim_test_result [list 0 {}]
+}
+
+
+
+finish_test
diff --git a/ext/fts5/test/fts5fault4.test b/ext/fts5/test/fts5fault4.test
new file mode 100644
index 0000000000000000000000000000000000000000..2b4f6c4d2aaef69d166830731e25d5d2cd5b31c6
--- /dev/null
+++ b/ext/fts5/test/fts5fault4.test
@@ -0,0 +1,401 @@
+# 2014 June 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+# This file is focused on OOM errors.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+source $testdir/malloc_common.tcl
+set testprefix fts5fault4
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+set ::TMPDBERROR [list 1 \
+  {unable to open a temporary database file for storing temporary tables}
+]
+
+#-------------------------------------------------------------------------
+# An OOM while dropping an fts5 table.
+#
+db func rnddoc fts5_rnddoc 
+do_test 1.0 {
+  execsql { CREATE VIRTUAL TABLE xx USING fts5(x) }
+} {}
+faultsim_save_and_close
+
+do_faultsim_test 1 -faults oom-* -prep {
+  faultsim_restore_and_reopen
+  execsql { SELECT * FROM xx }
+} -body {
+  execsql { DROP TABLE xx }
+} -test {
+  faultsim_test_result [list 0 {}]
+}
+
+#-------------------------------------------------------------------------
+# An OOM while "reseeking" an FTS cursor.
+#
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE jj USING fts5(j);
+  INSERT INTO jj(rowid, j) VALUES(101, 'm t w t f s s');
+  INSERT INTO jj(rowid, j) VALUES(202, 't w t f s');
+  INSERT INTO jj(rowid, j) VALUES(303, 'w t f');
+  INSERT INTO jj(rowid, j) VALUES(404, 't');
+}
+faultsim_save_and_close
+
+do_faultsim_test 3 -faults oom-* -prep {
+  faultsim_restore_and_reopen
+  execsql { SELECT * FROM jj }
+} -body {
+  set res [list]
+  db eval { SELECT rowid FROM jj WHERE jj MATCH 't' } {
+    lappend res $rowid
+    if {$rowid==303} {
+      execsql { DELETE FROM jj WHERE rowid=404 }
+    }
+  }
+  set res
+} -test {
+  faultsim_test_result [list 0 {101 202 303}]
+}
+
+#-------------------------------------------------------------------------
+# An OOM within a special "*reads" query.
+#
+reset_db
+db func rnddoc fts5_rnddoc
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE x1 USING fts5(x);
+  INSERT INTO x1(x1, rank) VALUES('pgsz', 32);
+
+  WITH ii(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM ii WHERE i<10 )
+  INSERT INTO x1 SELECT rnddoc(5) FROM ii;
+}
+
+set ::res [db eval {SELECT rowid, x1 FROM x1 WHERE x1 MATCH '*reads'}]
+
+do_faultsim_test 4 -faults oom-* -body {
+  db eval {SELECT rowid, x, x1 FROM x1 WHERE x1 MATCH '*reads'}
+} -test {
+  faultsim_test_result {0 {0 {} 2}}
+}
+
+#-------------------------------------------------------------------------
+# An OOM within a query that uses a custom rank function.
+#
+reset_db
+do_execsql_test 5.0 {
+  PRAGMA encoding='utf16';
+  CREATE VIRTUAL TABLE x2 USING fts5(x);
+  INSERT INTO x2(rowid, x) VALUES(10, 'a b c'); -- 3
+  INSERT INTO x2(rowid, x) VALUES(20, 'a b c'); -- 6
+  INSERT INTO x2(rowid, x) VALUES(30, 'a b c'); -- 2
+  INSERT INTO x2(rowid, x) VALUES(40, 'a b c'); -- 5
+  INSERT INTO x2(rowid, x) VALUES(50, 'a b c'); -- 1
+}
+
+proc rowidmod {cmd mod} { 
+  set row [$cmd xRowid]
+  expr {$row % $mod}
+}
+sqlite3_fts5_create_function db rowidmod rowidmod
+
+do_faultsim_test 5.1 -faults oom-* -body {
+  db eval {
+    SELECT rowid || '-' || rank FROM x2 WHERE x2 MATCH 'b' AND 
+    rank MATCH "rowidmod('7')" ORDER BY rank
+  }
+} -test {
+  faultsim_test_result {0 {50-1 30-2 10-3 40-5 20-6}}
+}
+
+proc rowidprefix {cmd prefix} { 
+  set row [$cmd xRowid]
+  set {} "${row}-${prefix}"
+}
+sqlite3_fts5_create_function db rowidprefix rowidprefix
+
+set str [string repeat abcdefghijklmnopqrstuvwxyz 10]
+do_faultsim_test 5.2 -faults oom-* -body {
+  db eval "
+    SELECT rank, x FROM x2 WHERE x2 MATCH 'b' AND 
+    rank MATCH 'rowidprefix(''$::str'')'
+    LIMIT 1
+  "
+} -test {
+  faultsim_test_result "0 {10-$::str {a b c}}"
+}
+
+
+#-------------------------------------------------------------------------
+# OOM errors within auxiliary functions.
+#
+reset_db
+do_execsql_test 6.0 {
+  CREATE VIRTUAL TABLE x3 USING fts5(xxx);
+  INSERT INTO x3 VALUES('a b c d c b a');
+  INSERT INTO x3 VALUES('a a a a a a a');
+  INSERT INTO x3 VALUES('a a a a a a a');
+}
+
+do_faultsim_test 6.1 -faults oom-t* -body {
+  db eval { SELECT highlight(x3, 0, '*', '*') FROM x3 WHERE x3 MATCH 'c' }
+} -test {
+  faultsim_test_result {0 {{a b *c* d *c* b a}}}
+}
+
+proc firstinst {cmd} { 
+  foreach {p c o} [$cmd xInst 0] {}
+  expr $c*100 + $o
+}
+sqlite3_fts5_create_function db firstinst firstinst
+
+do_faultsim_test 6.2 -faults oom-t* -body {
+  db eval { SELECT firstinst(x3) FROM x3 WHERE x3 MATCH 'c' }
+} -test {
+  faultsim_test_result {0 2} {1 SQLITE_NOMEM}
+}
+
+proc previc {cmd} {
+  set res [$cmd xGetAuxdataInt 0]
+  $cmd xSetAuxdataInt [$cmd xInstCount]
+  return $res
+}
+sqlite3_fts5_create_function db previc  previc
+
+do_faultsim_test 6.2 -faults oom-t* -body {
+  db eval { SELECT previc(x3) FROM x3 WHERE x3 MATCH 'a' }
+} -test {
+  faultsim_test_result {0 {0 2 7}} {1 SQLITE_NOMEM}
+}
+
+#-------------------------------------------------------------------------
+# OOM error when querying for a phrase with many tokens.
+#
+reset_db
+do_execsql_test 7.0 {
+  CREATE VIRTUAL TABLE tt USING fts5(x, y);
+  INSERT INTO tt VALUES('f b g b c b', 'f a d c c b');  -- 1
+  INSERT INTO tt VALUES('d a e f e d', 'f b b d e e');  -- 2
+  INSERT INTO tt VALUES('f b g a d c', 'e f c f a d');  -- 3
+  INSERT INTO tt VALUES('f f c d g f', 'f a e b g b');  -- 4
+  INSERT INTO tt VALUES('a g b d a g', 'e g a e a c');  -- 5
+  INSERT INTO tt VALUES('c d b d e f', 'f g e g e e');  -- 6
+  INSERT INTO tt VALUES('e g f f b c', 'f c e f g f');  -- 7
+  INSERT INTO tt VALUES('e g c f c e', 'f e e a f g');  -- 8
+  INSERT INTO tt VALUES('e a e b e e', 'd c c f f f');  -- 9
+  INSERT INTO tt VALUES('f a g g c c', 'e g d g c e');  -- 10
+  INSERT INTO tt VALUES('c d b a e f', 'f g e h e e');  -- 11
+
+  CREATE VIRTUAL TABLE tt2 USING fts5(o);
+  INSERT INTO tt2(rowid, o) SELECT rowid, x||' '||y FROM tt;
+  INSERT INTO tt2(rowid, o) VALUES(12, 'a b c d e f g h i j k l');
+}
+
+do_faultsim_test 7.2 -faults oom-* -body {
+  db eval { SELECT rowid FROM tt WHERE tt MATCH 'f+g+e+g+e+e' }
+} -test {
+  faultsim_test_result {0 6} {1 SQLITE_NOMEM}
+}
+
+do_faultsim_test 7.3 -faults oom-* -body {
+  db eval { SELECT rowid FROM tt WHERE tt MATCH 'NEAR(a b c d e f)' }
+} -test {
+  faultsim_test_result {0 11} {1 SQLITE_NOMEM}
+}
+
+do_faultsim_test 7.4 -faults oom-t* -body {
+  db eval { SELECT rowid FROM tt2 WHERE tt2 MATCH '"g c f c e f e e a f"' }
+} -test {
+  faultsim_test_result {0 8} {1 SQLITE_NOMEM}
+}
+
+do_faultsim_test 7.5 -faults oom-* -body {
+  db eval {SELECT rowid FROM tt2 WHERE tt2 MATCH 'NEAR(a b c d e f g h i j k)'}
+} -test {
+  faultsim_test_result {0 12} {1 SQLITE_NOMEM}
+}
+
+do_faultsim_test 7.6 -faults oom-* -body {
+  db eval {SELECT rowid FROM tt WHERE tt MATCH 'y: "c c"'}
+} -test {
+  faultsim_test_result {0 {1 9}} {1 SQLITE_NOMEM}
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 8.0 {
+  CREATE VIRTUAL TABLE tt USING fts5(x);
+  INSERT INTO tt(tt, rank) VALUES('pgsz', 32);
+  BEGIN;
+    INSERT INTO tt(rowid, x) VALUES(1, 'a b c d x x');
+    WITH ii(i) AS (SELECT 2 UNION ALL SELECT i+1 FROM ii WHERE i<99)
+      INSERT INTO tt(rowid, x) SELECT i, 'a b c x x d' FROM ii;
+    INSERT INTO tt(rowid, x) VALUES(100, 'a b c d x x');
+  COMMIT;
+}
+
+do_faultsim_test 8.1 -faults oom-t* -body {
+  db eval { SELECT rowid FROM tt WHERE tt MATCH 'NEAR(a b c d, 2)' }
+} -test {
+  faultsim_test_result {0 {1 100}} {1 SQLITE_NOMEM}
+}
+
+do_faultsim_test 8.2 -faults oom-t* -body {
+  db eval { SELECT count(*) FROM tt WHERE tt MATCH 'a OR d' }
+} -test {
+  faultsim_test_result {0 100} {1 SQLITE_NOMEM}
+}
+
+
+#-------------------------------------------------------------------------
+# Fault in NOT query.
+#
+reset_db
+do_execsql_test 9.0 {
+  CREATE VIRTUAL TABLE tt USING fts5(x);
+  INSERT INTO tt(tt, rank) VALUES('pgsz', 32);
+  BEGIN;
+    WITH ii(i) AS (SELECT 1 UNION ALL SELECT i+1 FROM ii WHERE i<200)
+      INSERT INTO tt(rowid, x) 
+      SELECT i, CASE WHEN (i%50)==0 THEN 'a a a a a a' ELSE 'a x a x a x' END 
+      FROM ii;
+  COMMIT;
+}
+
+do_faultsim_test 9.1 -faults oom-* -body {
+  db eval { SELECT rowid FROM tt WHERE tt MATCH 'a NOT x' }
+} -test {
+  faultsim_test_result {0 {50 100 150 200}} {1 SQLITE_NOMEM}
+}
+
+#-------------------------------------------------------------------------
+# OOM in fts5_expr() SQL function.
+#
+do_faultsim_test 10.1 -faults oom-t* -body {
+  db one { SELECT fts5_expr('a AND b NEAR(a b)') }
+} -test {
+  faultsim_test_result {0 {"a" AND "b" AND NEAR("a" "b", 10)}} 
+}
+
+do_faultsim_test 10.2 -faults oom-t* -body {
+  db one { SELECT fts5_expr_tcl('x:"a b c" AND b NEAR(a b)', 'ns', 'x') }
+} -test {
+  set res {AND [ns -col 0 -- {a b c}] [ns -- {b}] [ns -near 10 -- {a} {b}]}
+  faultsim_test_result [list 0 $res]
+}
+
+do_faultsim_test 10.3 -faults oom-t* -body {
+  db one { SELECT fts5_expr('x:a', 'x') }
+} -test {
+  faultsim_test_result {0 {x : "a"}}
+}
+
+#-------------------------------------------------------------------------
+# OOM while configuring 'rank' option.
+#
+reset_db
+do_execsql_test 11.0 {
+  CREATE VIRTUAL TABLE ft USING fts5(x);
+}
+do_faultsim_test 11.1 -faults oom-t* -body {
+  db eval { INSERT INTO ft(ft, rank) VALUES('rank', 'bm25(10.0, 5.0)') }
+} -test {
+  faultsim_test_result {0 {}} {1 {disk I/O error}}
+}
+
+#-------------------------------------------------------------------------
+# OOM while creating an fts5vocab table.
+#
+reset_db
+do_execsql_test 12.0 {
+  CREATE VIRTUAL TABLE ft USING fts5(x);
+}
+faultsim_save_and_close
+do_faultsim_test 12.1 -faults oom-t* -prep {
+  faultsim_restore_and_reopen
+  db eval { SELECT * FROM sqlite_master }
+} -body {
+  db eval { CREATE VIRTUAL TABLE vv USING fts5vocab(ft, 'row') }
+} -test {
+  faultsim_test_result {0 {}} 
+}
+
+#-------------------------------------------------------------------------
+# OOM while querying an fts5vocab table.
+#
+reset_db
+do_execsql_test 13.0 {
+  CREATE VIRTUAL TABLE ft USING fts5(x);
+  INSERT INTO ft VALUES('a b');
+  CREATE VIRTUAL TABLE vv USING fts5vocab(ft, 'row');
+}
+faultsim_save_and_close
+do_faultsim_test 13.1 -faults oom-t* -prep {
+  faultsim_restore_and_reopen
+  db eval { SELECT * FROM vv }
+} -body {
+  db eval { SELECT * FROM vv }
+} -test {
+  faultsim_test_result {0 {a 1 1 b 1 1}} 
+}
+
+#-------------------------------------------------------------------------
+# OOM in multi-column token query.
+#
+reset_db
+do_execsql_test 13.0 {
+  CREATE VIRTUAL TABLE ft USING fts5(x, y, z);
+  INSERT INTO ft(ft, rank) VALUES('pgsz', 32);
+  INSERT INTO ft VALUES(
+      'x x x x x x x x x x x x x x x x',
+      'y y y y y y y y y y y y y y y y',
+      'z z z z z z z z x x x x x x x x'
+  );
+  INSERT INTO ft SELECT * FROM ft;
+  INSERT INTO ft SELECT * FROM ft;
+  INSERT INTO ft SELECT * FROM ft;
+  INSERT INTO ft SELECT * FROM ft;
+}
+faultsim_save_and_close
+do_faultsim_test 13.1 -faults oom-t* -prep {
+  faultsim_restore_and_reopen
+  db eval { SELECT * FROM ft }
+} -body {
+  db eval { SELECT rowid FROM ft WHERE ft MATCH '{x z}: x' }
+} -test {
+  faultsim_test_result {0 {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16}}
+}
+
+#-------------------------------------------------------------------------
+# OOM in an "ALTER TABLE RENAME TO"
+#
+reset_db
+do_execsql_test 14.0 {
+  CREATE VIRTUAL TABLE "tbl one" USING fts5(x, y, z);
+}
+faultsim_save_and_close
+do_faultsim_test 14.1 -faults oom-t* -prep {
+  faultsim_restore_and_reopen
+  db eval { SELECT * FROM "tbl one" }
+} -body {
+  db eval { ALTER TABLE "tbl one" RENAME TO "tbl two" }
+} -test {
+  faultsim_test_result {0 {}} $::TMPDBERROR
+}
+
+finish_test
diff --git a/ext/fts5/test/fts5fault5.test b/ext/fts5/test/fts5fault5.test
new file mode 100644
index 0000000000000000000000000000000000000000..6b8dade50466c731fe7dd94497c526b2b434b58a
--- /dev/null
+++ b/ext/fts5/test/fts5fault5.test
@@ -0,0 +1,131 @@
+# 2014 June 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+# This file is focused on OOM errors.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+source $testdir/malloc_common.tcl
+set testprefix fts5fault5
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+#-------------------------------------------------------------------------
+# OOM while creating an FTS5 table.
+#
+do_faultsim_test 1.1 -faults oom-t* -prep {
+  db eval { DROP TABLE IF EXISTS abc }
+} -body {
+  db eval { CREATE VIRTUAL TABLE abc USING fts5(x,y) }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+
+#-------------------------------------------------------------------------
+# OOM while writing a multi-tier doclist-index. And while running
+# integrity-check on the same.
+#
+reset_db
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE tt USING fts5(x);
+  INSERT INTO tt(tt, rank) VALUES('pgsz', 32);
+}
+faultsim_save_and_close
+
+do_faultsim_test 2.1 -faults oom-t* -prep {
+  faultsim_restore_and_reopen
+  db eval { SELECT * FROM tt }
+} -body {
+  set str [string repeat "abc " 50]
+  db eval {
+    WITH ii(i) AS (SELECT 1 UNION ALL SELECT i+1 FROM ii WHERE i<100)
+      INSERT INTO tt(rowid, x) SELECT i, $str FROM ii;
+  }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+do_faultsim_test 2.2 -faults oom-t* -body {
+  db eval { INSERT INTO tt(tt) VALUES('integrity-check') }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+#-------------------------------------------------------------------------
+# OOM while scanning fts5vocab tables.
+#
+reset_db
+do_test 3.0 {
+  execsql {
+    CREATE VIRTUAL TABLE tt USING fts5(x);
+    CREATE VIRTUAL TABLE tv USING fts5vocab(tt, 'row');
+
+    CREATE VIRTUAL TABLE tt2 USING fts5(x, detail=col);
+    CREATE VIRTUAL TABLE tv2 USING fts5vocab(tt2, 'col');
+
+    INSERT INTO tt(tt, rank) VALUES('pgsz', 32);
+    INSERT INTO tt2(tt2, rank) VALUES('pgsz', 32);
+    BEGIN;
+  }
+
+  for {set i 0} {$i < 20} {incr i} {
+    set str [string repeat "$i " 50]
+    execsql { INSERT INTO tt VALUES($str) }
+    execsql { INSERT INTO tt2 VALUES($str) }
+  }
+  execsql COMMIT
+} {}
+
+do_faultsim_test 3.1 -faults oom-t* -body {
+  db eval {
+    SELECT term FROM tv;
+  }
+} -test {
+  faultsim_test_result {0 {0 1 10 11 12 13 14 15 16 17 18 19 2 3 4 5 6 7 8 9}}
+}
+
+do_faultsim_test 3.2 -faults oom-t* -body {
+  db eval {
+    SELECT term FROM tv WHERE term BETWEEN '1' AND '2';
+  }
+} -test {
+  faultsim_test_result {0 {1 10 11 12 13 14 15 16 17 18 19 2}}
+}
+
+do_execsql_test 3.3.0 {
+  SELECT * FROM tv2;
+} {
+  0 x 1 {} 1 x 1 {} 10 x 1 {} 11 x 1 {} 12 x 1 {} 13 x 1 {}        
+  14 x 1 {} 15 x 1 {} 16 x 1 {} 17 x 1 {} 18 x 1 {} 19  x 1 {}     
+  2 x 1 {} 3 x 1 {} 4 x 1 {} 5 x 1 {} 6 x 1 {} 7 x 1 {} 8 x 1 {}   
+  9 x 1 {}
+}
+do_faultsim_test 3.3 -faults oom-t* -body {
+  db eval {
+    SELECT * FROM tv2;
+  }
+} -test {
+  faultsim_test_result [list 0 [list                                   \
+      0 x 1 {} 1 x 1 {} 10 x 1 {} 11 x 1 {} 12 x 1 {} 13 x 1 {}        \
+      14 x 1 {} 15 x 1 {} 16 x 1 {} 17 x 1 {} 18 x 1 {} 19  x 1 {}     \
+      2 x 1 {} 3 x 1 {} 4 x 1 {} 5 x 1 {} 6 x 1 {} 7 x 1 {} 8 x 1 {}   \
+      9 x 1 {}
+  ]]
+}
+
+
+
+finish_test
diff --git a/ext/fts5/test/fts5fault6.test b/ext/fts5/test/fts5fault6.test
new file mode 100644
index 0000000000000000000000000000000000000000..1aacddce9ff1ad7ed22b3938a0d408ba6bd6184a
--- /dev/null
+++ b/ext/fts5/test/fts5fault6.test
@@ -0,0 +1,293 @@
+# 2014 June 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+# This file is focused on OOM errors.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+source $testdir/malloc_common.tcl
+set testprefix fts5fault6
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+
+#-------------------------------------------------------------------------
+# OOM while rebuilding an FTS5 table.
+#
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE tt USING fts5(a, b);
+  INSERT INTO tt VALUES('c d c g g f', 'a a a d g a');
+  INSERT INTO tt VALUES('c d g b f d', 'b g e c g c');
+  INSERT INTO tt VALUES('c c f d e d', 'c e g d b c');
+  INSERT INTO tt VALUES('e a f c e f', 'g b a c d g');
+  INSERT INTO tt VALUES('c g f b b d', 'g c d c f g');
+  INSERT INTO tt VALUES('d a g a b b', 'g c g g c e');
+  INSERT INTO tt VALUES('e f a b c e', 'f d c d c c');
+  INSERT INTO tt VALUES('e c a g c d', 'b b g f f b');
+  INSERT INTO tt VALUES('g b d d e b', 'f f b d a c');
+  INSERT INTO tt VALUES('e a d a e d', 'c e a e f g');
+}
+faultsim_save_and_close
+
+do_faultsim_test 1.1 -faults oom-t* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  db eval { INSERT INTO tt(tt) VALUES('rebuild') }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+do_faultsim_test 1.2 -faults oom-t* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  db eval { REPLACE INTO tt(rowid, a, b) VALUES(6, 'x y z', 'l l l'); }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+
+#-------------------------------------------------------------------------
+# OOM within a special delete.
+#
+reset_db
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE tt USING fts5(a, content="");
+  INSERT INTO tt VALUES('c d c g g f');
+  INSERT INTO tt VALUES('c d g b f d');
+  INSERT INTO tt VALUES('c c f d e d');
+  INSERT INTO tt VALUES('e a f c e f');
+  INSERT INTO tt VALUES('c g f b b d');
+  INSERT INTO tt VALUES('d a g a b b');
+  INSERT INTO tt VALUES('e f a b c e');
+  INSERT INTO tt VALUES('e c a g c d');
+  INSERT INTO tt VALUES('g b d d e b');
+  INSERT INTO tt VALUES('e a d a e d');
+}
+faultsim_save_and_close
+
+do_faultsim_test 2.1 -faults oom-t* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  db eval { INSERT INTO tt(tt, rowid, a) VALUES('delete', 3, 'c d g b f d'); }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+do_faultsim_test 2.2 -faults oom-t* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  db eval { INSERT INTO tt(tt) VALUES('delete-all') }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+do_faultsim_test 2.3 -faults oom-t* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  db eval { INSERT INTO tt VALUES('x y z') }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+#-------------------------------------------------------------------------
+# OOM in the ASCII tokenizer with very large tokens. 
+#
+# Also the unicode tokenizer.
+#
+set t1 [string repeat wxyz 20]
+set t2 [string repeat wxyz 200]
+set t3 [string repeat wxyz 2000]
+set doc "$t1 $t2 $t3"
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE xyz USING fts5(c, tokenize=ascii, content="");
+  CREATE VIRTUAL TABLE xyz2 USING fts5(c, content="");
+}
+faultsim_save_and_close
+
+do_faultsim_test 3.1 -faults oom-t* -prep {
+  faultsim_restore_and_reopen
+  db eval { SELECT * FROM xyz }
+} -body {
+  db eval { INSERT INTO xyz VALUES($::doc) }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+do_faultsim_test 3.2 -faults oom-t* -prep {
+  faultsim_restore_and_reopen
+  db eval { SELECT * FROM xyz2 }
+} -body {
+  db eval { INSERT INTO xyz2 VALUES($::doc) }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+#-------------------------------------------------------------------------
+# OOM while initializing a unicode61 tokenizer.
+#
+reset_db
+faultsim_save_and_close
+do_faultsim_test 4.1 -faults oom-t* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  db eval { 
+    CREATE VIRTUAL TABLE yu USING fts5(x, tokenize="unicode61 separators abc");
+  }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+#-------------------------------------------------------------------------
+#
+# 5.2.* OOM while running a query that includes synonyms and matchinfo().
+#
+# 5.3.* OOM while running a query that returns a row containing instances
+#       of more than 4 synonyms for a single term.
+#
+proc mit {blob} {
+  set scan(littleEndian) i*
+  set scan(bigEndian) I*
+  binary scan $blob $scan($::tcl_platform(byteOrder)) r
+  return $r
+}
+proc tcl_tokenize {tflags text} {
+  foreach {w iStart iEnd} [fts5_tokenize_split $text] {
+    sqlite3_fts5_token $w $iStart $iEnd
+    if {$tflags=="query" && [string length $w]==1} {
+      for {set i 2} {$i < 7} {incr i} {
+        sqlite3_fts5_token -colo [string repeat $w $i] $iStart $iEnd
+      }
+    }
+  }
+}
+proc tcl_create {args} { return "tcl_tokenize" }
+reset_db
+sqlite3_fts5_create_tokenizer db tcl tcl_create
+db func mit mit
+sqlite3_fts5_register_matchinfo db
+do_test 5.0 {
+  execsql { CREATE VIRTUAL TABLE t1 USING fts5(a, tokenize=tcl) }
+  execsql { INSERT INTO t1(t1, rank) VALUES('pgsz', 32) }
+  foreach {rowid text} {
+    1 {aaaa cc b aaaaa cc aa} 
+    2 {aa aa bb a bbb}
+    3 {bb aaaaa aaaaa b aaaa aaaaa}
+    4 {aa a b aaaa aa}
+    5 {aa b ccc aaaaa cc}
+    6 {aa aaaaa bbbb cc aaa}
+    7 {aaaaa aa aa ccccc bb}
+    8 {ccc bbbbb ccccc bbb c}
+    9 {cccccc bbbb a aaa cccc c}
+
+    20 {ddd f ddd eeeee fff ffff eeee ddd fff eeeee dddddd eeee}
+    21 {fffff eee dddd fffff dd ee ee eeeee eee eeeeee ee dd e}
+    22 {fffff d eeee dddd fffff dddddd ffff ddddd eeeee ee eee dddd ddddd}
+    23 {ddddd fff ddd eeeee ffff eeee ddd ff ff ffffff eeeeee dddd ffffff}
+    24 {eee dd ee dddd dddd eeeeee e eee fff ffff}
+    25 {ddddd ffffff dddddd fff ddd ddddd ddd f eeee fff dddd f}
+    26 {f ffff fff fff eeeeee dddd d dddddd ddddd eee ff eeeee}
+    27 {eee fff dddddd eeeee eeeee dddd ddddd ffff f eeeee eee dddddd ddddd d}
+    28 {dd ddddd d ddd d fff d dddd ee dddd ee ddd dddddd dddddd}
+    29 {eeee dddd ee dddd eeee dddd dd fffff f ddd eeeee ddd ee}
+    30 {ff ffffff eeeeee eeeee eee ffffff ff ffff f fffff eeeee}
+    31 {fffff eeeeee dddd eeee eeee eeeeee eee fffff d ddddd ffffff ffff dddddd}
+    32 {dddddd fffff ee eeeeee eeee ee fff dddd fff eeee ffffff eeeeee ffffff}
+    33 {ddddd eeee dd ffff dddddd fff eeee ddddd ffff eeee ddd}
+    34 {ee dddd ddddd dddddd eeee eeeeee f dd ee dddddd ffffff}
+    35 {ee dddd dd eeeeee ddddd eee d eeeeee dddddd eee dddd fffff}
+    36 {eee ffffff ffffff e fffff eeeee ff dddddd dddddd fff}
+    37 {eeeee fffff dddddd dddd ffffff fff f dd ee dd dd eeeee}
+    38 {eeeeee ee d ff eeeeee eeeeee eee eeeee ee ffffff dddd eeee dddddd ee}
+    39 {eeeeee ddd fffff e dddd ee eee eee ffffff ee f d dddd}
+    40 {ffffff dddddd eee ee ffffff eee eeee ddddd ee eeeeee f}
+    41 {ddd ddd fff fffff ee fffff f fff ddddd fffff}
+    42 {dddd ee ff d f ffffff fff ffffff ff dd dddddd f eeee}
+    43 {d dd fff fffff d f fff e dddd ee ee}
+    44 {ff ffff eee ddd d dd ffff dddd d eeee d eeeeee}
+    45 {eeee f eeeee ee e ffff f ddd e fff}
+    46 {ffff d ffff eeee ffff eeeee f ffff ddddd eee}
+    47 {dd dd dddddd ddddd fffff dddddd ddd ddddd eeeeee ffff eeee eee ee}
+    48 {ffff ffff e dddd ffffff dd dd dddd f fffff}
+    49 {ffffff d dddddd ffff eeeee f ffff ffff d dd fffff eeeee}
+
+    50 {x e}
+  } {
+    execsql { INSERT INTO t1(rowid, a) VALUES($rowid, $text) }
+  }
+} {}
+
+set res [list {*}{
+  1 {3 24 8 2 12 6}
+  5 {2 24 8 2 12 6}
+  6 {3 24 8 1 12 6}
+  7 {3 24 8 1 12 6}
+  9 {2 24 8 3 12 6}
+}]
+do_execsql_test 5.1.1 {
+  SELECT rowid, mit(matchinfo(t1, 'x')) FROM t1 WHERE t1 MATCH 'a AND c'
+} $res
+do_execsql_test 5.1.2 {
+  SELECT count(*) FROM t1 WHERE t1 MATCH 'd e f'
+} 29
+
+faultsim_save_and_close
+do_faultsim_test 5.2 -faults oom* -prep {
+  faultsim_restore_and_reopen
+  sqlite3_fts5_create_tokenizer db tcl tcl_create
+  sqlite3_fts5_register_matchinfo db
+  db func mit mit
+} -body {
+  db eval { 
+    SELECT rowid, mit(matchinfo(t1, 'x')) FROM t1 WHERE t1 MATCH 'a AND c'
+  }
+} -test {
+  faultsim_test_result [list 0 $::res] {1 {SQL logic error}}
+}
+
+do_faultsim_test 5.3 -faults oom* -prep {
+  faultsim_restore_and_reopen
+  sqlite3_fts5_create_tokenizer db tcl tcl_create
+} -body {
+  db eval { 
+    SELECT count(*) FROM t1 WHERE t1 MATCH 'd AND e AND f'
+  }
+} -test {
+  faultsim_test_result {0 29} {1 {SQL logic error}}
+}
+
+do_faultsim_test 5.4 -faults oom* -prep {
+  faultsim_restore_and_reopen
+  sqlite3_fts5_create_tokenizer db tcl tcl_create
+} -body {
+  db eval { 
+    SELECT count(*) FROM t1 WHERE t1 MATCH 'x + e'
+  }
+} -test {
+  faultsim_test_result {0 1} {1 {SQL logic error}}
+}
+
+#-------------------------------------------------------------------------
+catch { db close }
+do_faultsim_test 6 -faults oom* -prep {
+  sqlite_orig db test.db
+  sqlite3_db_config_lookaside db 0 0 0
+} -test {
+  faultsim_test_result {0 {}} {1 {initialization of fts5 failed: }}
+  if {$testrc==0} {
+    db eval { CREATE VIRTUAL TABLE temp.t1 USING fts5(x) }
+  }
+  db close
+}
+finish_test
diff --git a/ext/fts5/test/fts5fault7.test b/ext/fts5/test/fts5fault7.test
new file mode 100644
index 0000000000000000000000000000000000000000..c93e099f82bdb9cd16b38eec03f57ce6e6c6afa9
--- /dev/null
+++ b/ext/fts5/test/fts5fault7.test
@@ -0,0 +1,118 @@
+# 2015 September 3
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+# This file is focused on OOM errors.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+source $testdir/malloc_common.tcl
+set testprefix fts5fault7
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+if 1 {
+
+#-------------------------------------------------------------------------
+# Test fault-injection on a query that uses xColumnSize() on columnsize=0
+# table.
+#
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x, columnsize=0);
+  INSERT INTO t1 VALUES('a b c d e f g');
+  INSERT INTO t1 VALUES('a b c d');
+  INSERT INTO t1 VALUES('a b c d e f g h i j');
+}
+
+
+fts5_aux_test_functions db
+do_faultsim_test 1 -faults oom* -body {
+  execsql { SELECT fts5_test_columnsize(t1) FROM t1 WHERE t1 MATCH 'b' }
+} -test {
+  faultsim_test_result {0 {7 4 10}} {1 SQLITE_NOMEM}
+}
+
+}
+
+#-------------------------------------------------------------------------
+# Test fault-injection when a segment is promoted.
+#
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t2 USING fts5(a);
+  INSERT INTO t2(t2, rank) VALUES('automerge', 0);
+  INSERT INTO t2(t2, rank) VALUES('crisismerge', 4);
+  INSERT INTO t2(t2, rank) VALUES('pgsz', 40);
+
+  INSERT INTO t2 VALUES('a b c');
+  INSERT INTO t2 VALUES('d e f');
+  INSERT INTO t2 VALUES('f e d');
+  INSERT INTO t2 VALUES('c b a');
+
+  INSERT INTO t2 VALUES('a b c');
+  INSERT INTO t2 VALUES('d e f');
+  INSERT INTO t2 VALUES('f e d');
+  INSERT INTO t2 VALUES('c b a');
+} {}
+
+faultsim_save_and_close
+do_faultsim_test 1 -faults oom-t* -prep {
+  faultsim_restore_and_reopen
+  db eval {
+    BEGIN;
+    INSERT INTO t2 VALUES('c d c g g f');
+    INSERT INTO t2 VALUES('c d g b f d');
+    INSERT INTO t2 VALUES('c c f d e d');
+    INSERT INTO t2 VALUES('e a f c e f');
+    INSERT INTO t2 VALUES('c g f b b d');
+    INSERT INTO t2 VALUES('d a g a b b');
+    INSERT INTO t2 VALUES('e f a b c e');
+    INSERT INTO t2 VALUES('e c a g c d');
+    INSERT INTO t2 VALUES('g b d d e b');
+    INSERT INTO t2 VALUES('e a d a e d');
+  }
+} -body {
+  db eval COMMIT
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+#-------------------------------------------------------------------------
+# Test fault-injection when a segment is promoted.
+#
+reset_db
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE xy USING fts5(x);
+  INSERT INTO xy(rowid, x) VALUES(1, '1 2 3');
+  INSERT INTO xy(rowid, x) VALUES(2, '2 3 4');
+  INSERT INTO xy(rowid, x) VALUES(3, '3 4 5');
+}
+faultsim_save_and_close
+
+do_faultsim_test 2.1 -faults oom-* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  db eval { UPDATE OR REPLACE xy SET rowid=3 WHERE rowid = 2 }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+# Test fault-injection when an empty expression is parsed.
+#
+do_faultsim_test 2.2 -faults oom-* -body {
+  db eval { SELECT * FROM xy('""') }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+finish_test
diff --git a/ext/fts5/test/fts5fault8.test b/ext/fts5/test/fts5fault8.test
new file mode 100644
index 0000000000000000000000000000000000000000..dc060a15928c324d0bb616a521ca2964ccc52a00
--- /dev/null
+++ b/ext/fts5/test/fts5fault8.test
@@ -0,0 +1,96 @@
+# 2015 September 3
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+# This file is focused on OOM errors.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+source $testdir/malloc_common.tcl
+set testprefix fts5fault8
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+foreach_detail_mode $testprefix {
+
+  fts5_aux_test_functions db
+  do_execsql_test 1.0 {
+    CREATE VIRTUAL TABLE t1 USING fts5(a, b, detail=%DETAIL%);
+    INSERT INTO t1 VALUES('a b c d', '1 2 3 4');
+    INSERT INTO t1 VALUES('a b a b', NULL);
+    INSERT INTO t1 VALUES(NULL, '1 2 1 2');
+  }
+  
+  do_faultsim_test 1 -faults oom-* -body {
+    execsql { 
+      SELECT rowid, fts5_test_poslist(t1) FROM t1 WHERE t1 MATCH 'b OR 2' 
+    }
+  } -test {
+    faultsim_test_result {0 {1 {0.0.1 1.1.1} 2 {0.0.1 0.0.3} 3 {1.1.1 1.1.3}}} \
+                         {1 SQLITE_NOMEM}
+  }
+  
+  do_faultsim_test 2 -faults oom-* -body {
+    execsql { INSERT INTO t1(t1) VALUES('integrity-check') }
+  } -test {
+    faultsim_test_result {0 {}} {1 SQLITE_NOMEM}
+  }
+
+  if {[detail_is_none]==0} {
+    do_faultsim_test 3 -faults oom-* -body {
+      execsql { SELECT rowid FROM t1('b:2') }
+    } -test {
+      faultsim_test_result {0 {1 3}} {1 SQLITE_NOMEM}
+    }
+  }
+
+} ;# foreach_detail_mode...
+
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE x2 USING fts5(a);
+  INSERT INTO x2(x2, rank) VALUES('crisismerge', 2);
+  INSERT INTO x2(x2, rank) VALUES('pgsz', 32);
+  INSERT INTO x2 VALUES('a b c d');
+  INSERT INTO x2 VALUES('e f g h');
+  INSERT INTO x2 VALUES('i j k l');
+  INSERT INTO x2 VALUES('m n o p');
+  INSERT INTO x2 VALUES('q r s t');
+  INSERT INTO x2 VALUES('u v w x');
+  INSERT INTO x2 VALUES('y z a b');
+}
+faultsim_save_and_close
+
+do_faultsim_test 4 -faults oom-* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { INSERT INTO x2(x2) VALUES('optimize') }
+} -test {
+  faultsim_test_result {0 {}} {1 SQLITE_NOMEM}
+}
+
+set TMPDBERROR {1 {unable to open a temporary database file for storing temporary tables}}
+
+do_faultsim_test 5 -faults oom-t* -prep {
+  faultsim_restore_and_reopen
+  execsql { PRAGMA temp_store = memory }
+} -body {
+  execsql { PRAGMA integrity_check }
+} -test {
+  if {[string match {*error code=7*} $testresult]==0} {
+    faultsim_test_result {0 ok} {1 SQLITE_NOMEM} $::TMPDBERROR
+  }
+}
+
+
+finish_test
diff --git a/ext/fts5/test/fts5fault9.test b/ext/fts5/test/fts5fault9.test
new file mode 100644
index 0000000000000000000000000000000000000000..669b13efe70b4d32b1179913f1fa4a2b64cd6221
--- /dev/null
+++ b/ext/fts5/test/fts5fault9.test
@@ -0,0 +1,159 @@
+# 2015 September 3
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+# This file is focused on OOM errors.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+source $testdir/malloc_common.tcl
+set testprefix fts5fault9
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+foreach_detail_mode $testprefix {
+
+if {"%DETAIL%" != "none"} continue
+
+fts5_aux_test_functions db
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, b, detail=%DETAIL%);
+  INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
+  WITH seq(s) AS ( SELECT 1 UNION ALL SELECT s+1 FROM seq WHERE s<50)
+  INSERT INTO t1 SELECT 'x x x y y y', 'a b c d e f' FROM seq;
+}
+
+do_faultsim_test 1 -faults oom-* -body {
+  execsql { SELECT count(*) FROM t1('x AND y') }
+} -test {
+  faultsim_test_result {0 50}
+}
+
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE t2 USING fts5(a, b, detail=%DETAIL%);
+  INSERT INTO t2(t2, rank) VALUES('pgsz', 32);
+  INSERT INTO t2 VALUES('abc cba', 'cba abc');
+  INSERT INTO t2 VALUES('abc cba', 'cba abc');
+  INSERT INTO t2 VALUES('abc cba', 'cba abc');
+
+  INSERT INTO t2 VALUES('axy cyx', 'cyx axy');
+  INSERT INTO t2 VALUES('axy cyx', 'cyx axy');
+  INSERT INTO t2 VALUES('axy cyx', 'cyx axy');
+}
+
+do_faultsim_test 2 -faults oom-* -body {
+  execsql { SELECT count(*) FROM t2('a* AND c*') }
+} -test {
+  faultsim_test_result {0 6}
+}
+
+
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE t3 USING fts5(a, detail=%DETAIL%);
+  INSERT INTO t3 VALUES('a x x a x a a a');
+  INSERT INTO t3 VALUES('x a a x a x x x');
+}
+
+do_faultsim_test 3.1 -faults oom-* -body {
+  execsql { SELECT highlight(t3, 0, '[', ']') FROM t3('a') }
+} -test {
+  faultsim_test_result {0 {{[a] x x [a] x [a] [a] [a]} {x [a] [a] x [a] x x x}}}
+}
+
+do_faultsim_test 3.2 -faults oom-t* -body {
+  execsql { SELECT fts5_test_poslist2(t3) FROM t3('x') }
+} -test {
+  faultsim_test_result \
+      {0 {{0.0.1 0.0.2 0.0.4} {0.0.0 0.0.3 0.0.5 0.0.6 0.0.7}}} \
+      {1 SQLITE_NOMEM}
+}
+
+#-------------------------------------------------------------------------
+# Test OOM injection with the xPhraseFirstColumn() API and a tokenizer
+# uses query synonyms.
+#
+fts5_tclnum_register db
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE t4 USING fts5(x, y, z, detail=%DETAIL%, tokenize=tclnum);
+  INSERT INTO t4 VALUES('one two three', '1 2 3', 'i ii iii');
+  INSERT INTO t4 VALUES('1 2 3', 'i ii iii', 'one two three');
+  INSERT INTO t4 VALUES('i ii iii', 'one two three', 'i ii iii');
+
+  INSERT INTO t4 VALUES('a1 a2 a3', 'a4 a5 a6', 'a7 a8 a9');
+  INSERT INTO t4 VALUES('b1 b2 b3', 'b4 b5 b6', 'b7 b8 b9');
+  INSERT INTO t4 VALUES('c1 c2 c3', 'c4 c5 c6', 'c7 c8 c9');
+}
+
+do_faultsim_test 4.1 -faults oom-t* -body {
+  execsql { SELECT rowid, fts5_test_collist(t4) FROM t4('2') }
+} -test {
+  faultsim_test_result \
+      {0 {1 {0.0 0.1 0.2} 2 {0.0 0.1 0.2} 3 {0.0 0.1 0.2}}} \
+      {1 SQLITE_NOMEM} {1 SQLITE_ERROR} {1 {SQL logic error}}
+}
+
+do_faultsim_test 4.2 -faults oom-t* -body {
+  execsql { SELECT rowid, fts5_test_collist(t4) FROM t4('a5 OR b5 OR c5') }
+} -test {
+  faultsim_test_result \
+      {0 {4 {0.0 0.1 0.2} 5 {1.0 1.1 1.2} 6 {2.0 2.1 2.2}}} \
+      {1 SQLITE_NOMEM} {1 SQLITE_ERROR} {1 {SQL logic error}}
+}
+
+
+#-------------------------------------------------------------------------
+# An OOM within an "ORDER BY rank" query.
+#
+db func rnddoc fts5_rnddoc 
+do_execsql_test 5.0 {
+  CREATE VIRTUAL TABLE xx USING fts5(x, y, detail=%DETAIL%);
+  INSERT INTO xx VALUES ('def', 'abc ' || rnddoc(10));
+  INSERT INTO xx VALUES ('def', 'abc abc' || rnddoc(9));
+  INSERT INTO xx VALUES ('def', 'abc abc abc' || rnddoc(8));
+} {}
+faultsim_save_and_close
+
+do_faultsim_test 5 -faults oom-* -prep {
+  faultsim_restore_and_reopen
+  execsql { SELECT * FROM xx }
+} -body {
+  execsql { SELECT rowid FROM xx('abc AND def') ORDER BY rank }
+} -test {
+  faultsim_test_result [list 0 {3 2 1}]
+}
+
+set doc [string repeat "xyz " 500]
+do_execsql_test 6.0 {
+  CREATE VIRTUAL TABLE yy USING fts5(y, detail=%DETAIL%);
+  INSERT INTO yy(yy, rank) VALUES('pgsz', 64);
+  INSERT INTO yy VALUES ($doc);
+  INSERT INTO yy VALUES ('1 2 3');
+  INSERT INTO yy VALUES ('xyz');
+  UPDATE yy SET y = y WHERE rowid = 1;
+  UPDATE yy SET y = y WHERE rowid = 1;
+  UPDATE yy SET y = y WHERE rowid = 1;
+  UPDATE yy SET y = y WHERE rowid = 1;
+} {}
+
+do_faultsim_test 6 -faults oom-* -body {
+  execsql { SELECT rowid FROM yy('xyz') }
+} -test {
+  faultsim_test_result [list 0 {1 3}]
+}
+
+
+} ;# foreach_detail_mode...
+
+finish_test
diff --git a/ext/fts5/test/fts5faultA.test b/ext/fts5/test/fts5faultA.test
new file mode 100644
index 0000000000000000000000000000000000000000..212401fe58116afe303f230eff789a5f2c21499f
--- /dev/null
+++ b/ext/fts5/test/fts5faultA.test
@@ -0,0 +1,63 @@
+# 2016 February 2
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+# This file is focused on OOM errors.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+source $testdir/malloc_common.tcl
+set testprefix fts5faultA
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+foreach_detail_mode $testprefix {
+  do_execsql_test 1.0 {
+    CREATE VIRTUAL TABLE o1 USING fts5(a, detail=%DETAIL%);
+    INSERT INTO o1(o1, rank) VALUES('pgsz', 32);
+  
+    WITH s(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<300 )
+    INSERT INTO o1 SELECT 'A B C' FROM s;
+  
+    INSERT INTO o1 VALUES('A X C');
+  
+    WITH s(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<300 )
+    INSERT INTO o1 SELECT 'A B C' FROM s;
+  }
+  
+  do_faultsim_test 1 -faults oom* -prep {
+    sqlite3 db test.db
+  } -body {
+    execsql { SELECT rowid FROM o1('a NOT b') }
+  } -test {
+    faultsim_test_result {0 301}
+  }
+}
+
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE o2 USING fts5(a);
+  
+  INSERT INTO o2 VALUES('A B C');
+  WITH s(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<300 )
+  INSERT INTO o2 SELECT group_concat('A B C ') FROM s;
+}
+
+do_faultsim_test 2 -faults oom* -prep {
+  sqlite3 db test.db
+} -body {
+  execsql { SELECT rowid FROM o2('a+b+c NOT xyz') }
+} -test {
+  faultsim_test_result {0 {1 2}}
+}
+finish_test
diff --git a/ext/fts5/test/fts5faultB.test b/ext/fts5/test/fts5faultB.test
new file mode 100644
index 0000000000000000000000000000000000000000..e5fc514d096b338c152adb2de813968a0b3367d1
--- /dev/null
+++ b/ext/fts5/test/fts5faultB.test
@@ -0,0 +1,173 @@
+# 2016 February 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+# This file is focused on OOM errors.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+source $testdir/malloc_common.tcl
+set testprefix fts5faultB
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+proc mit {blob} {
+  set scan(littleEndian) i*
+  set scan(bigEndian) I*
+  binary scan $blob $scan($::tcl_platform(byteOrder)) r
+  return $r
+}
+db func mit mit
+
+
+#-------------------------------------------------------------------------
+# Errors while registering the matchinfo() demo function.
+#
+do_faultsim_test 1 -faults oom* -prep {
+  sqlite3 db test.db
+} -body {
+  sqlite3_fts5_register_matchinfo db
+} -test {
+  faultsim_test_result {0 {}} {1 SQLITE_ERROR} {1 SQLITE_NOMEM}
+}
+
+
+#-------------------------------------------------------------------------
+# Errors while executing the matchinfo() demo function.
+#
+reset_db
+sqlite3_fts5_register_matchinfo db
+db func mit mit
+do_execsql_test 2 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, b);
+  INSERT INTO t1 VALUES('x y z', '1 2 3');
+  INSERT INTO t1 VALUES('x', '1 2 3 4 5 6 7');
+}
+
+do_faultsim_test 2.1 -faults oom* -body {
+  execsql { SELECT mit(matchinfo(t1, 'a')) FROM t1('x') }
+} -test {
+  faultsim_test_result {0 {{2 5} {2 5}}} 
+}
+
+do_faultsim_test 2.2 -faults oom* -body {
+  execsql { SELECT mit(matchinfo(t1, 'l')) FROM t1('x') }
+} -test {
+  faultsim_test_result {0 {{3 3} {1 7}}} 
+}
+
+do_execsql_test 2.3 {
+  INSERT INTO t1 VALUES('a b c d e f', 'a b d e f c');
+  INSERT INTO t1 VALUES('l m b c a', 'n o a b c z');
+}
+
+do_faultsim_test 2.4 -faults oom* -body {
+  execsql { SELECT mit(matchinfo(t1, 's')) FROM t1('a b c') }
+} -test {
+  faultsim_test_result {0 {{3 2} {2 3}}} 
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db 
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE x1 USING fts5(z);
+}
+
+do_faultsim_test 3.1 -faults oom* -body {
+  execsql {
+    SELECT rowid FROM x1('c') WHERE rowid>1;
+  }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+do_execsql_test 3.2 {
+  INSERT INTO x1 VALUES('a b c');
+  INSERT INTO x1 VALUES('b c d');
+  INSERT INTO x1 VALUES('c d e');
+  INSERT INTO x1 VALUES('d e f');
+}
+do_faultsim_test 3.3 -faults oom* -body {
+  execsql {
+    SELECT rowid FROM x1('c') WHERE rowid>1;
+  }
+} -test {
+  faultsim_test_result {0 {2 3}}
+}
+
+#-------------------------------------------------------------------------
+# Test OOM injection with nested colsets.
+#
+reset_db
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, b, c, d);
+  INSERT INTO t1 VALUES('a', 'b', 'c', 'd');  -- 1
+  INSERT INTO t1 VALUES('d', 'a', 'b', 'c');  -- 2
+  INSERT INTO t1 VALUES('c', 'd', 'a', 'b');  -- 3
+  INSERT INTO t1 VALUES('b', 'c', 'd', 'a');  -- 4
+}
+do_faultsim_test 4.1 -faults oom* -body {
+  execsql { SELECT rowid FROM t1('{a b c} : (b:a AND c:b)'); }
+} -test {
+  faultsim_test_result {0 2}
+}
+
+do_faultsim_test 4.2 -faults oom* -body {
+  execsql { SELECT rowid FROM t1('{a b c} : (a AND d)') }
+} -test {
+  faultsim_test_result {0 {2 3}}
+}
+
+#-------------------------------------------------------------------------
+# Test OOM injection while parsing a CARET expression
+#
+reset_db
+do_execsql_test 5.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a);
+  INSERT INTO t1 VALUES('a b c d');  -- 1
+  INSERT INTO t1 VALUES('d a b c');  -- 2
+  INSERT INTO t1 VALUES('c d a b');  -- 3
+  INSERT INTO t1 VALUES('b c d a');  -- 4
+}
+do_faultsim_test 5.1 -faults oom* -body {
+  execsql { SELECT rowid FROM t1('^a OR ^b') }
+} -test {
+  faultsim_test_result {0 {1 4}}
+}
+
+#-------------------------------------------------------------------------
+# Test OOM injection in a query with two MATCH expressions
+#
+reset_db
+do_execsql_test 6.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a);
+  INSERT INTO t1 VALUES('a b c d');  -- 1
+  INSERT INTO t1 VALUES('d a b c');  -- 2
+  INSERT INTO t1 VALUES('c d a b');  -- 3
+  INSERT INTO t1 VALUES('b c d a');  -- 4
+}
+do_faultsim_test 6.1 -faults oom* -body {
+  execsql { SELECT rowid FROM t1 WHERE t1 MATCH 'a' AND t1 MATCH 'b' }
+} -test {
+  faultsim_test_result {0 {1 2 3 4}}
+}
+do_faultsim_test 6.2 -faults oom* -body {
+  execsql { SELECT rowid FROM t1 WHERE t1 MATCH 'a OR b' AND t1 MATCH 'c OR d' }
+} -test {
+  faultsim_test_result {0 {1 2 3 4}}
+}
+
+
+finish_test
diff --git a/ext/fts5/test/fts5faultD.test b/ext/fts5/test/fts5faultD.test
new file mode 100644
index 0000000000000000000000000000000000000000..33590645ce3519ea406a2c7e2b9969e2116503cf
--- /dev/null
+++ b/ext/fts5/test/fts5faultD.test
@@ -0,0 +1,87 @@
+# 2016 February 2
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+# This file is focused on OOM errors.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+source $testdir/malloc_common.tcl
+set testprefix fts5faultD
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+foreach_detail_mode $testprefix {
+  if {"%DETAIL%"=="none"} continue
+
+  do_execsql_test 1.0 {
+    CREATE VIRTUAL TABLE o1 USING fts5(a, b, c, detail=%DETAIL%);
+    INSERT INTO o1(o1, rank) VALUES('pgsz', 32);
+
+    WITH s(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<60 )
+    INSERT INTO o1 SELECT 'A', 'B', 'C' FROM s;
+
+    WITH s(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<60 )
+    INSERT INTO o1 SELECT 'C', 'A', 'B' FROM s;
+
+    WITH s(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<60 )
+    INSERT INTO o1 SELECT 'B', 'C', 'A' FROM s;
+  }
+  
+  do_faultsim_test 1 -faults int* -prep {
+    sqlite3 db test.db
+  } -body {
+    execsql { SELECT count(*) FROM o1('a') }
+  } -test {
+    faultsim_test_result {0 180} {1 {vtable constructor failed: o1}}
+  }
+
+  do_faultsim_test 2 -faults int* -prep {
+    sqlite3 db test.db
+  } -body {
+    execsql { SELECT * FROM o1('a:a AND {b c}:b') ORDER BY rank }
+    expr 1
+  } -test {
+    faultsim_test_result {0 1} {1 {vtable constructor failed: o1}}
+  }
+
+  do_faultsim_test 3 -faults int* -prep {
+    sqlite3 db test.db
+  } -body {
+    execsql { SELECT * FROM o1('{b c}:b NOT a:a') ORDER BY rank }
+    expr 1
+  } -test {
+    faultsim_test_result {0 1} {1 {vtable constructor failed: o1}}
+  }
+
+  do_faultsim_test 4 -faults int* -prep {
+    sqlite3 db test.db
+  } -body {
+    execsql { SELECT * FROM o1('b:b OR a:a') }
+    expr 1
+  } -test {
+    faultsim_test_result {0 1} {1 {vtable constructor failed: o1}}
+  }
+
+  do_faultsim_test 5 -faults int* -prep {
+    sqlite3 db test.db
+  } -body {
+    execsql { SELECT count(*) FROM o1('c:b') }
+    expr 1
+  } -test {
+    faultsim_test_result {0 1} {1 {vtable constructor failed: o1}}
+  }
+}
+
+finish_test
diff --git a/ext/fts5/test/fts5faultE.test b/ext/fts5/test/fts5faultE.test
new file mode 100644
index 0000000000000000000000000000000000000000..07a4542102f6263e3b62e1790257b319bcc3ab6f
--- /dev/null
+++ b/ext/fts5/test/fts5faultE.test
@@ -0,0 +1,71 @@
+# 2016 February 2
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+# This file is focused on OOM errors.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+source $testdir/malloc_common.tcl
+set testprefix fts5faultE
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+faultsim_save_and_close
+do_faultsim_test 1 -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { CREATE VIRTUAL TABLE t1 USING fts5(x, y, tokenize=trigram) }
+} -test {
+  faultsim_test_result {0 {}} {1 {vtable constructor failed: t1}} 
+}
+
+reset_db
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x, y, tokenize=trigram);
+}
+
+faultsim_save_and_close
+do_faultsim_test 2 -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { 
+    INSERT INTO t1 VALUES('abcdefghijklmnopqrstuvwxyz', NULL);
+    SELECT count(*) FROM t1 WHERE x LIKE '%mnop%' AND t1 MATCH 'jkl';
+  }
+} -test {
+  faultsim_test_result {0 1} {1 {vtable constructor failed: t1}}
+}
+
+reset_db
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x, y, tokenize=trigram, detail=none);
+  INSERT INTO t1 VALUES('abcdefghijklmnopqrstuvwxyz', NULL);
+}
+
+faultsim_save_and_close
+do_faultsim_test 3 -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { 
+    SELECT count(*) FROM t1 WHERE x LIKE '%mnopqrs%' AND t1 MATCH 'abc'
+  }
+} -test {
+  faultsim_test_result {0 1} {1 {vtable constructor failed: t1}}
+}
+
+
+
+finish_test
+
diff --git a/ext/fts5/test/fts5faultF.test b/ext/fts5/test/fts5faultF.test
new file mode 100644
index 0000000000000000000000000000000000000000..96cc2b083f5dcc30ea60def7b18502f4ae3ce118
--- /dev/null
+++ b/ext/fts5/test/fts5faultF.test
@@ -0,0 +1,111 @@
+# 2023 July 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+# This file is focused on OOM errors. Particularly those that may occur
+# when using contentless_delete=1 databases.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+source $testdir/malloc_common.tcl
+set testprefix fts5faultF
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+faultsim_save_and_close
+do_faultsim_test 1 -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { 
+    CREATE VIRTUAL TABLE t1 USING fts5(x, y, content=, contentless_delete=1) 
+  }
+} -test {
+  faultsim_test_result {0 {}} {1 {vtable constructor failed: t1}} 
+}
+
+reset_db
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(doc, content=, contentless_delete=1);
+  BEGIN;
+    INSERT INTO t1(rowid, doc) VALUES(1, 'a b c d');
+    INSERT INTO t1(rowid, doc) VALUES(2, 'a b c d');
+    INSERT INTO t1(rowid, doc) VALUES(3, 'a b c d');
+    INSERT INTO t1(rowid, doc) VALUES(4, 'a b c d');
+  COMMIT;
+  DELETE FROM t1 WHERE rowid IN (2, 4);
+}
+
+do_faultsim_test 2 -prep {
+  sqlite3 db test.db
+  execsql { SELECT rowid FROM t1 }
+} -body {
+  execsql { 
+    SELECT rowid FROM t1('b c');
+  }
+} -test {
+  faultsim_test_result {0 {1 3}}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(doc, content=, contentless_delete=1);
+  BEGIN;
+    INSERT INTO t1(rowid, doc) VALUES(1, 'a b c d');
+    INSERT INTO t1(rowid, doc) VALUES(2, 'a b c d');
+    INSERT INTO t1(rowid, doc) VALUES(3, 'a b c d');
+    INSERT INTO t1(rowid, doc) VALUES(4, 'a b c d');
+  COMMIT;
+}
+
+faultsim_save_and_close
+do_faultsim_test 3 -prep {
+  faultsim_restore_and_reopen
+  execsql { SELECT rowid FROM t1 }
+} -body {
+  execsql { 
+    INSERT INTO t1(rowid, doc) VALUES(5, 'a b c d');
+  }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(doc, content=, contentless_delete=1);
+  INSERT INTO t1(t1, rank) VALUES('pgsz', 64);
+  WITH s(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<1000
+  )
+  INSERT INTO t1(rowid, doc) SELECT i, 'a b c d' FROM s;
+}
+
+do_execsql_test 4.1 { DELETE FROM t1 WHERE rowid <= 25 }
+
+faultsim_save_and_close
+do_faultsim_test 4 -faults oom-t* -prep {
+  faultsim_restore_and_reopen
+  execsql { SELECT rowid FROM t1 }
+} -body {
+  execsql { 
+    DELETE FROM t1 WHERE rowid < 100
+  }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+
+finish_test
+
diff --git a/ext/fts5/test/fts5faultG.test b/ext/fts5/test/fts5faultG.test
new file mode 100644
index 0000000000000000000000000000000000000000..9110c6336d1707d825227404393b68e1cd275de0
--- /dev/null
+++ b/ext/fts5/test/fts5faultG.test
@@ -0,0 +1,76 @@
+# 2010 June 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+source $testdir/malloc_common.tcl
+set testprefix fts5faultG
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+set ::testprefix fts5faultG
+
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a);
+  INSERT INTO t1 VALUES('test renaming the table');
+  INSERT INTO t1 VALUES(' after it has been written');
+  INSERT INTO t1 VALUES(' actually other stuff instead');
+}
+faultsim_save_and_close
+do_faultsim_test 1 -faults oom* -prep { 
+  faultsim_restore_and_reopen
+  execsql {
+    BEGIN;
+      DELETE FROM t1 WHERE rowid=2;
+  }
+} -body {
+  execsql {
+    DELETE FROM t1;
+  }
+} -test {
+  catchsql { COMMIT }
+  faultsim_integrity_check
+  faultsim_test_result {0 {}}
+}
+
+reset_db
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, content=, contentless_delete=1);
+  BEGIN;
+    INSERT INTO t1 VALUES('here''s some text');
+    INSERT INTO t1 VALUES('useful stuff, text');
+    INSERT INTO t1 VALUES('what would we do without text!'); 
+  COMMIT;
+}
+faultsim_save_and_close
+do_faultsim_test 2 -faults oom* -prep { 
+  faultsim_restore_and_reopen
+  execsql {
+    BEGIN;
+      DELETE FROM t1 WHERE rowid=2;
+  }
+} -body {
+  execsql {
+    INSERT INTO t1(t1) VALUES('optimize');
+  }
+} -test {
+  faultsim_integrity_check
+  faultsim_test_result {0 {}}
+}
+
+
+
+finish_test
diff --git a/ext/fts5/test/fts5faultH.test b/ext/fts5/test/fts5faultH.test
new file mode 100644
index 0000000000000000000000000000000000000000..0cbbf7f5eff5690139dd804efccada1d4496b63c
--- /dev/null
+++ b/ext/fts5/test/fts5faultH.test
@@ -0,0 +1,150 @@
+# 2010 June 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+source $testdir/malloc_common.tcl
+set testprefix fts5faultG
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+set ::testprefix fts5faultH
+
+sqlite3_fts5_register_origintext db
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(
+      x, tokenize="origintext unicode61", tokendata=1
+  );
+
+  BEGIN;
+    INSERT INTO t1 VALUES('oNe tWo thRee');
+    INSERT INTO t1 VALUES('One Two Three');
+    INSERT INTO t1 VALUES('onE twO threE');
+  COMMIT;
+  BEGIN;
+    INSERT INTO t1 VALUES('one two three');
+    INSERT INTO t1 VALUES('one two three');
+    INSERT INTO t1 VALUES('one two three');
+  COMMIT;
+}
+
+do_faultsim_test 1 -faults oom* -prep { 
+} -body {
+  execsql {
+    SELECT rowid FROM t1('three');
+  }
+} -test {
+  faultsim_integrity_check
+  faultsim_test_result {0 {1 2 3 4 5 6}}
+}
+
+
+reset_db
+sqlite3_fts5_register_origintext db
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(
+      x, tokenize="origintext unicode61", tokendata=1
+  );
+  INSERT INTO t1(t1, rank) VALUES('pgsz', 64);
+
+  BEGIN;
+    INSERT INTO t1(rowid, x) VALUES(10, 'aaa bbb BBB');
+    INSERT INTO t1(rowid, x) VALUES(12, 'bbb bbb bbb');
+    INSERT INTO t1(rowid, x) VALUES(13, 'bbb bbb bbb');
+    INSERT INTO t1(rowid, x) VALUES(14, 'bbb BBB bbb');
+    INSERT INTO t1(rowid, x) VALUES(15, 'bbb bbb bbb');
+    INSERT INTO t1(rowid, x) VALUES(16, 'bbb bbb bbb');
+    INSERT INTO t1(rowid, x) VALUES(17, 'bbb bbb bbb');
+    INSERT INTO t1(rowid, x) VALUES(18, 'bbb bbb bbb');
+    INSERT INTO t1(rowid, x) VALUES(19, 'bbb bbb bbb');
+    INSERT INTO t1(rowid, x) VALUES(20, 'bbb bbb bbb');
+    INSERT INTO t1(rowid, x) VALUES(21, 'bbb bbb bbb');
+    INSERT INTO t1(rowid, x) VALUES(22, 'bbb bbb bbb');
+    INSERT INTO t1(rowid, x) VALUES(23, 'bbb bbb bbb');
+    INSERT INTO t1(rowid, x) VALUES(24, 'aaa bbb BBB');
+  COMMIT;
+}
+
+do_faultsim_test 2 -faults oom* -prep { 
+} -body {
+  execsql {
+    SELECT rowid FROM t1('BBB AND AAA');
+  }
+} -test {
+  faultsim_integrity_check
+  faultsim_test_result {0 {10 24}}
+}
+
+reset_db
+sqlite3_fts5_register_origintext db
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(
+      x, tokenize="origintext unicode61", tokendata=1
+  );
+  INSERT INTO t1(t1, rank) VALUES('pgsz', 64);
+
+  INSERT INTO t1(rowid, x) VALUES(9, 'bbb Bbb BBB');
+  BEGIN;
+    INSERT INTO t1(rowid, x) VALUES(10, 'aaa bbb BBB');
+    INSERT INTO t1(rowid, x) VALUES(11, 'bbb Bbb BBB');
+    INSERT INTO t1(rowid, x) VALUES(12, 'bbb Bbb BBB');
+    INSERT INTO t1(rowid, x) VALUES(13, 'bbb Bbb BBB');
+    INSERT INTO t1(rowid, x) VALUES(14, 'bbb Bbb BBB');
+    INSERT INTO t1(rowid, x) VALUES(15, 'bbb Bbb BBB');
+    INSERT INTO t1(rowid, x) VALUES(16, 'bbb Bbb BBB');
+    INSERT INTO t1(rowid, x) VALUES(17, 'bbb Bbb BBB');
+    INSERT INTO t1(rowid, x) VALUES(18, 'bbb Bbb BBB');
+    INSERT INTO t1(rowid, x) VALUES(19, 'bbb Bbb BBB');
+    INSERT INTO t1(rowid, x) VALUES(20, 'bbb Bbb BBB');
+    INSERT INTO t1(rowid, x) VALUES(21, 'bbb Bbb BBB');
+    INSERT INTO t1(rowid, x) VALUES(22, 'bbb Bbb BBB');
+    INSERT INTO t1(rowid, x) VALUES(23, 'bbb Bbb BBB');
+    INSERT INTO t1(rowid, x) VALUES(24, 'bbb Bbb BBB');
+    INSERT INTO t1(rowid, x) VALUES(25, 'bbb Bbb BBB');
+    INSERT INTO t1(rowid, x) VALUES(26, 'bbb Bbb BBB');
+    INSERT INTO t1(rowid, x) VALUES(27, 'bbb Bbb BBB');
+    INSERT INTO t1(rowid, x) VALUES(28, 'bbb Bbb BBB');
+    INSERT INTO t1(rowid, x) VALUES(29, 'bbb Bbb BBB');
+    INSERT INTO t1(rowid, x) VALUES(30, 'bbb Bbb BBB');
+    INSERT INTO t1(rowid, x) VALUES(31, 'bbb Bbb BBB');
+    INSERT INTO t1(rowid, x) VALUES(32, 'bbb Bbb BBB');
+    INSERT INTO t1(rowid, x) VALUES(33, 'bbb Bbb BBB');
+    INSERT INTO t1(rowid, x) VALUES(34, 'bbb Bbb BBB');
+    INSERT INTO t1(rowid, x) VALUES(35, 'aaa bbb BBB');
+  COMMIT;
+}
+
+do_faultsim_test 3.1 -faults oom* -prep { 
+} -body {
+  execsql {
+    SELECT rowid FROM t1('BBB AND AAA');
+  }
+} -test {
+  faultsim_integrity_check
+  faultsim_test_result {0 {10 35}}
+}
+do_faultsim_test 3.2 -faults oom* -prep { 
+} -body {
+  execsql {
+    SELECT count(*) FROM t1('BBB');
+  }
+} -test {
+  faultsim_integrity_check
+  faultsim_test_result {0 27}
+}
+
+
+finish_test
diff --git a/ext/fts5/test/fts5faultI.test b/ext/fts5/test/fts5faultI.test
new file mode 100644
index 0000000000000000000000000000000000000000..72f25caee1b01d560e1c4f693db2a0d5633d4291
--- /dev/null
+++ b/ext/fts5/test/fts5faultI.test
@@ -0,0 +1,294 @@
+# 2010 June 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+source $testdir/malloc_common.tcl
+set testprefix fts5faultI
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+set ::testprefix fts5faultI
+
+do_execsql_test 1.0 {
+  PRAGMA encoding = utf16;
+  CREATE VIRTUAL TABLE t1 USING fts5(x, locale=1);
+  INSERT INTO t1 VALUES('origintext unicode61 ascii porter trigram');
+}
+
+faultsim_save_and_close
+faultsim_restore_and_reopen
+
+do_faultsim_test 1 -faults oom* -prep { 
+} -body {
+  execsql {
+    SELECT rowid FROM t1(fts5_locale('en_US', 'origintext'));
+  }
+} -test {
+  faultsim_test_result {0 1}
+}
+
+do_faultsim_test 2 -faults oom* -prep { 
+  faultsim_restore_and_reopen
+  execsql {
+    SELECT * FROM t1('ascii');
+  }
+} -body {
+  execsql {
+    UPDATE t1 SET rowid=rowid+1;
+  }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+fts5_aux_test_functions db
+do_faultsim_test 3 -faults oom* -prep { 
+} -body {
+  execsql {
+    SELECT fts5_columnlocale(t1, 0) FROM t1('unicode*');
+  }
+} -test {
+  faultsim_test_result {0 {{}}} {1 SQLITE_NOMEM}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE w1 USING fts5(a);
+}
+faultsim_save_and_close
+
+do_faultsim_test 4 -faults oom* -prep { 
+  faultsim_restore_and_reopen
+  execsql {
+    BEGIN;
+      INSERT INTO w1 VALUES('token token token');
+  }
+} -body {
+  execsql {
+    INSERT INTO w1(w1, rank) VALUES('rank', 'bm25()');
+  }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+do_faultsim_test 5 -faults oom* -prep { 
+  faultsim_restore_and_reopen
+  execsql { 
+    BEGIN;
+      INSERT INTO w1 VALUES('one');
+      SAVEPOINT one;
+        INSERT INTO w1 VALUES('two');
+      ROLLBACK TO one;
+  }
+
+} -body {
+  execsql {
+    INSERT INTO w1 VALUES('string');
+  }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 5.0 {
+  CREATE VIRTUAL TABLE w1 USING fts5(a);
+  INSERT INTO w1 VALUES('one two three');
+}
+fts5_aux_test_functions db
+
+do_faultsim_test 5 -faults oom* -prep {
+} -body {
+  execsql {
+    SELECT fts5_test_insttoken(w1, 0, 0) FROM w1('two');
+  }
+} -test {
+  faultsim_test_result {0 two} {1 SQLITE_NOMEM}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 6.0 {
+  CREATE VIRTUAL TABLE w1 USING fts5(a);
+  INSERT INTO w1 VALUES('one two three');
+}
+fts5_aux_test_functions db
+faultsim_save_and_close
+
+do_faultsim_test 6 -faults oom* -prep {
+  faultsim_restore_and_reopen
+  db eval {
+    BEGIN;
+      INSERT INTO w1 VALUES('four five six');
+      SAVEPOINT abc;
+        INSERT INTO w1 VALUES('seven eight nine');
+        SAVEPOINT def;
+          INSERT INTO w1 VALUES('ten eleven twelve');
+  }
+} -body {
+  execsql {
+    RELEASE abc;
+  }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 7.0 {
+  CREATE VIRTUAL TABLE w1 USING fts5(a);
+  INSERT INTO w1 VALUES('one two three');
+  INSERT INTO w1 VALUES('three two one');
+  DELETE FROM w1_content WHERE rowid=1;
+}
+
+faultsim_save_and_close
+
+do_faultsim_test 7 -faults oom* -prep {
+  faultsim_restore_and_reopen
+  db eval { SELECT * FROM w1 }
+} -body {
+  execsql {
+    PRAGMA integrity_check;
+  }
+} -test {
+}
+
+#-------------------------------------------------------------------------
+reset_db
+fts5_tclnum_register db
+fts5_aux_test_functions db
+
+do_execsql_test 8.0 {
+  CREATE VIRTUAL TABLE ft USING fts5(
+      x, tokenize = "tclnum query", detail=columns
+  );
+  INSERT INTO ft VALUES('one two three i ii iii');
+  INSERT INTO ft VALUES('four five six iv v vi');
+  INSERT INTO ft VALUES('eight nine ten viii ix x');
+} {}
+
+do_faultsim_test 8.1 -faults oom* -prep {
+} -body {
+  execsql {
+    SELECT fts5_test_collist (ft) FROM ft('one two');
+  }
+} -test {
+  faultsim_test_result {0 {{0.0 1.0}}} {1 {SQL logic error}} {1 SQLITE_NOMEM}
+}
+
+do_faultsim_test 8.2 -faults oom* -prep {
+} -body {
+  execsql {
+    SELECT rowid FROM ft('one two') ORDER BY rank;
+  }
+} -test {
+  faultsim_test_result {0 1} {1 {SQL logic error}} {1 SQLITE_NOMEM}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 9.0 {
+  CREATE VIRTUAL TABLE ft USING fts5(x);
+  INSERT INTO ft VALUES('one two three i ii iii');
+  INSERT INTO ft VALUES('four five six iv v vi');
+  INSERT INTO ft VALUES('eight nine ten viii ix x');
+} {}
+
+faultsim_save_and_close
+
+do_faultsim_test 9.1 -faults oom* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql {
+    UPDATE ft SET rowid=4 WHERE rowid=1
+  }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+do_faultsim_test 9.2 -faults oom* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql {
+    SELECT rowid FROM ft WHERE x MATCH 'one AND two AND three'
+  }
+} -test {
+  faultsim_test_result {0 1}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 10.0 {
+  CREATE VIRTUAL TABLE ft USING fts5(x, locale=1);
+  INSERT INTO ft VALUES(fts5_locale('hello', 'one two three i ii iii'));
+  INSERT INTO ft VALUES('four five six iv v vi');
+  INSERT INTO ft VALUES('eight nine ten viii ix x');
+} {}
+
+do_execsql_test 10.1 {
+  SELECT fts5_get_locale(ft, 0) FROM ft WHERE x MATCH 'one AND two AND three'
+} {hello}
+
+faultsim_save_and_close
+do_faultsim_test 10.1 -faults oom* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql {
+    SELECT fts5_get_locale(ft, 0) FROM ft WHERE x MATCH 'one AND two AND three'
+  }
+} -test {
+  faultsim_test_result {0 hello}
+}
+
+breakpoint
+faultsim_save_and_close
+do_faultsim_test 10.2 -faults oom-t* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql {
+    INSERT INTO ft VALUES(zeroblob(10000));
+  }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 11.0 {
+  CREATE VIRTUAL TABLE f1 USING fts5(content);
+  CREATE TABLE g1(id, content);
+  INSERT INTO g1 VALUES(30000, 'a b c');
+  INSERT INTO g1 VALUES(40000, 'd e f');
+}
+
+faultsim_save_and_close
+
+do_faultsim_test 11 -faults oom* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql {
+    INSERT INTO f1(rowid, content) SELECT id, content FROM g1;
+  }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+finish_test
+
diff --git a/ext/fts5/test/fts5first.test b/ext/fts5/test/fts5first.test
new file mode 100644
index 0000000000000000000000000000000000000000..492681eed780d92714029f41cf9bdc24254b0a43
--- /dev/null
+++ b/ext/fts5/test/fts5first.test
@@ -0,0 +1,96 @@
+# 2017 November 25
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5first
+
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE x1 USING fts5(a, b);
+}
+
+unset -nocomplain res
+foreach {tn expr ok} {
+  1 {^abc}           1
+  2 {^abc + def}     1
+  3 {^ "abc def"}    1
+  4 {^"abc def"}     1
+  5 {abc ^def}       1
+  6 {abc + ^def}     0
+  7 {abc ^+ def}     0
+  8 {"^abc"}         1
+  9 {NEAR(^abc def)} 0
+} {
+  set res(0) {/1 {fts5: syntax error near .*}/}
+  set res(1) {0 {}}
+
+  do_catchsql_test 1.$tn { SELECT * FROM x1($expr) } $res($ok)
+}
+
+#-------------------------------------------------------------------------
+# 
+do_execsql_test 2.0 {
+  INSERT INTO x1 VALUES('a b c', 'b c a');
+}
+
+foreach {tn expr match} {
+  1 {^a} 1
+  2 {^b} 1
+  3 {^c} 0
+  4 {^a + b} 1
+  5 {^b + c} 1
+  6 {^c + a} 0
+  7 {^"c a"} 0
+  8 {a:^a} 1
+  9 {a:^b} 0
+  10 {a:^"a b"} 1
+} {
+  do_execsql_test 2.$tn { SELECT EXISTS (SELECT rowid FROM x1($expr)) } $match
+}
+
+#-------------------------------------------------------------------------
+# 
+do_execsql_test 3.0 {
+  DELETE FROM x1;
+  INSERT INTO x1 VALUES('b a', 'c a');
+  INSERT INTO x1 VALUES('a a', 'c c');
+  INSERT INTO x1 VALUES('a b', 'a a');
+}
+fts5_aux_test_functions db
+
+foreach {tn expr expect} {
+  1 {^a} {{2 1}}
+  2 {^c AND ^b} {{0 2} {1 0}}
+} {
+  do_execsql_test 3.$tn {
+    SELECT fts5_test_queryphrase(x1) FROM x1($expr) LIMIT 1
+  } [list $expect]
+}
+
+#-------------------------------------------------------------------------
+# 
+do_execsql_test 3.1 {
+  CREATE VIRTUAL TABLE x2 USING fts5(a, b, c, detail=column);
+}
+
+do_catchsql_test 3.2 {
+  SELECT * FROM x2('a + b');
+} {1 {fts5: phrase queries are not supported (detail!=full)}}
+
+do_catchsql_test 3.3 {
+  SELECT * FROM x2('^a');
+} {1 {fts5: phrase queries are not supported (detail!=full)}}
+finish_test
diff --git a/ext/fts5/test/fts5full.test b/ext/fts5/test/fts5full.test
new file mode 100644
index 0000000000000000000000000000000000000000..76fdc0288fbb752d1abeb0816fcc8e208651f167
--- /dev/null
+++ b/ext/fts5/test/fts5full.test
@@ -0,0 +1,42 @@
+# 2014 Dec 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test that SQLITE_FULL is returned if the FTS5 table cannot find a free 
+# segid to use. In practice this can only really happen when automerge and
+# crisismerge are both disabled.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5full
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE x8 USING fts5(i);
+  INSERT INTO x8(x8, rank) VALUES('automerge', 0);
+  INSERT INTO x8(x8, rank) VALUES('crisismerge', 100000);
+}
+
+db func rnddoc fts5_rnddoc
+do_test 1.1 {
+  list [catch {
+    for {set i 0} {$i < 2500} {incr i} {
+      execsql { INSERT INTO x8 VALUES( rnddoc(5) ); }
+    }
+  } msg] $msg
+} {0 {}}
+
+
+finish_test
diff --git a/ext/fts5/test/fts5fuzz1.test b/ext/fts5/test/fts5fuzz1.test
new file mode 100644
index 0000000000000000000000000000000000000000..52dc23d77ca037f4d55429e11c0a41fa30f9a7d7
--- /dev/null
+++ b/ext/fts5/test/fts5fuzz1.test
@@ -0,0 +1,92 @@
+# 2014 June 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS5 module.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+return_if_no_fts5
+set testprefix fts5fuzz1
+
+
+#-------------------------------------------------------------------------
+reset_db
+do_catchsql_test 1.1 {
+  CREATE VIRTUAL TABLE f1 USING fts5(a b);
+} {/1 {parse error in.*}/}
+
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 2.1 {
+  CREATE VIRTUAL TABLE f1 USING fts5(a, b);
+  INSERT INTO f1 VALUES('a b', 'c d');
+  INSERT INTO f1 VALUES('e f', 'a b');
+}
+
+do_execsql_test 2.2.1 {
+  SELECT rowid FROM f1('""');
+} {}
+
+do_execsql_test 2.2.2 {
+  SELECT rowid FROM f1('"" AND a');
+} {}
+
+
+do_execsql_test 2.2.3 {
+  SELECT rowid FROM f1('"" a');
+} {1 2}
+
+do_execsql_test 2.2.4 {
+  SELECT rowid FROM f1('"" OR a');
+} {1 2}
+
+do_execsql_test 2.3 {
+  SELECT a, b FROM f1('NEAR("")');
+} {}
+
+do_execsql_test 2.4 {
+  SELECT a, b FROM f1('NEAR("", 5)');
+} {}
+
+do_execsql_test 2.5 {
+  SELECT a, b FROM f1('NEAR("" c, 5)');
+} {{a b} {c d}}
+
+do_execsql_test 2.6 {
+  SELECT a, b FROM f1('NEAR("" c d, 5)');
+} {{a b} {c d}}
+
+do_execsql_test 2.7 {
+  SELECT a, b FROM f1('NEAR(c d, 5)');
+} {{a b} {c d}}
+
+do_execsql_test 2.8 {
+  SELECT rowid FROM f1('NEAR("a" "b", 5)');
+} {1 2}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 3.2 {
+  CREATE VIRTUAL TABLE f2 USING fts5(o, t, tokenize="ascii separators abc");
+  SELECT * FROM f2('a+4');
+} {}
+
+
+
+#-------------------------------------------------------------------------
+reset_db
+do_catchsql_test 4.1 {
+  CREATE VIRTUAL TABLE f2 USING fts5(o, t);
+  SELECT * FROM f2('(8 AND 9)`AND 10');
+} {1 {fts5: syntax error near "`"}}
+
+finish_test
diff --git a/ext/fts5/test/fts5hash.test b/ext/fts5/test/fts5hash.test
new file mode 100644
index 0000000000000000000000000000000000000000..b3d8b562c8732e27fdc6bd82f330ffc751f660a1
--- /dev/null
+++ b/ext/fts5/test/fts5hash.test
@@ -0,0 +1,168 @@
+# 2015 April 21
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# The tests in this file are focused on the code in fts5_hash.c.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5hash
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+#-------------------------------------------------------------------------
+# Return a list of tokens (a vocabulary) that all share the same hash
+# key value. This can be used to test hash collisions.
+#
+proc build_vocab1 {args} {
+
+  set O(-nslot) 1024
+  set O(-nword)   20
+  set O(-hash)    88
+  set O(-prefix)  ""
+
+  if {[llength $args] % 2} { error "bad args" }
+  array set O2 $args
+  foreach {k v} $args {
+    if {[info exists O($k)]==0} { error "bad option: $k" }
+    set O($k) $v
+  }
+
+  set L [list]
+  while {[llength $L] < $O(-nword)} {
+    set t "$O(-prefix)[random_token]"
+    set h [sqlite3_fts5_token_hash $O(-nslot) $t]
+    if {$O(-hash)==$h} { lappend L $t }
+  }
+  return $L
+}
+
+proc random_token {} {
+  set map [list 0 a  1 b  2 c  3 d  4 e  5 f  6 g  7 h  8 i  9 j]
+  set iVal [expr int(rand() * 2000000)]
+  return [string map $map $iVal]
+}
+
+proc random_doc {vocab nWord} {
+  set doc ""
+  set nVocab [llength $vocab]
+  for {set i 0} {$i<$nWord} {incr i} {
+    set j [expr {int(rand() * $nVocab)}]
+    lappend doc [lindex $vocab $j]
+  }
+  return $doc
+}
+
+foreach_detail_mode $testprefix {
+
+  set vocab [build_vocab1]
+  db func r random_doc 
+  
+  do_execsql_test 1.0 {
+    CREATE VIRTUAL TABLE eee USING fts5(e, ee, detail=%DETAIL%);
+    BEGIN;
+      WITH ii(i) AS (SELECT 1 UNION ALL SELECT i+1 FROM ii WHERE i<100)
+      INSERT INTO eee SELECT r($vocab, 5), r($vocab, 7) FROM ii;
+      INSERT INTO eee(eee) VALUES('integrity-check');
+    COMMIT;
+    INSERT INTO eee(eee) VALUES('integrity-check');
+  }
+  
+  set hash [sqlite3_fts5_token_hash 1024 xyz]
+  set vocab [build_vocab1 -prefix xyz -hash $hash]
+  lappend vocab xyz
+  
+  do_execsql_test 1.1 {
+    CREATE VIRTUAL TABLE vocab USING fts5vocab(eee, 'row'); 
+    BEGIN;
+  }
+  do_test 1.2 {
+    for {set i 1} {$i <= 100} {incr i} {
+      execsql { INSERT INTO eee VALUES( r($vocab, 5), r($vocab, 7) ) }
+    }
+  } {}
+    
+  do_test 1.3 {
+    db eval { SELECT term, doc FROM vocab } {
+      set nRow [db one {SELECT count(*) FROM eee WHERE eee MATCH $term}]
+      if {$nRow != $doc} {
+        error "term=$term fts5vocab=$doc cnt=$nRow"
+      }
+    }
+    set {} {}
+  } {}
+  
+  do_execsql_test 1.4 {
+    COMMIT;
+    INSERT INTO eee(eee) VALUES('integrity-check');
+  }
+
+  #-----------------------------------------------------------------------
+  # Add a small and very large token with the same hash value to an
+  # empty table. At one point this would provoke an asan error.
+  #
+  do_test 1.5 {
+    set big [string repeat 12345 40]
+    set hash [sqlite3_fts5_token_hash 1024 $big]
+    while {1} {
+      set small [random_token]
+      if {[sqlite3_fts5_token_hash 1024 $small]==$hash} break
+    }
+
+    execsql { CREATE VIRTUAL TABLE t2 USING fts5(x, detail=%DETAIL%) }
+    execsql {
+      INSERT INTO t2 VALUES($small || ' ' || $big);
+    }
+  } {}
+
+} ;# foreach_detail_mode
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 2.1 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x);
+  INSERT INTO t1(t1, rank) VALUES('hashsize', 1024);
+  INSERT INTO t1(t1, rank) VALUES('automerge', 0);
+  INSERT INTO t1(t1, rank) VALUES('crisismerge', 1000);
+}
+
+do_execsql_test 2.2 {
+  BEGIN;
+    INSERT INTO t1 VALUES('abc def ghi');
+    SELECT count(*) FROM t1_data;
+} {2}
+
+do_execsql_test 2.3 {
+  WITH s(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<1024
+  )
+  INSERT INTO t1 SELECT 'abc def ghi' FROM s;
+  SELECT (SELECT count(*) FROM t1_data) > 10;
+} {1}
+
+do_execsql_test 2.4 {
+  COMMIT;
+  DROP TABLE t1;
+  CREATE VIRTUAL TABLE t1 USING fts5(x);
+  INSERT INTO t1(t1, rank) VALUES('hashsize', 1024);
+  INSERT INTO t1(t1, rank) VALUES('automerge', 0);
+  INSERT INTO t1(t1, rank) VALUES('crisismerge', 1000);
+  WITH s(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<1024
+  )
+  INSERT INTO t1 SELECT 'abc' || i || ' def' || i || ' ghi' || i FROM s;
+  SELECT (SELECT count(*) FROM t1_data) > 100;
+} {1}
+
+finish_test
diff --git a/ext/fts5/test/fts5integrity.test b/ext/fts5/test/fts5integrity.test
new file mode 100644
index 0000000000000000000000000000000000000000..5c40021803d6e160e4fb1f18ff85be8a98f4c9ea
--- /dev/null
+++ b/ext/fts5/test/fts5integrity.test
@@ -0,0 +1,412 @@
+# 2015 Jan 13
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains tests focused on the integrity-check procedure.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5integrity
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE xx USING fts5(x);
+  INSERT INTO xx VALUES('term');
+}
+do_execsql_test 1.1 {
+  INSERT INTO xx(xx) VALUES('integrity-check');
+}
+
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE yy USING fts5(x, prefix=1);
+  INSERT INTO yy VALUES('term');
+}
+do_execsql_test 2.1 {
+  INSERT INTO yy(yy) VALUES('integrity-check');
+}
+
+#--------------------------------------------------------------------
+#
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE zz USING fts5(z);
+  INSERT INTO zz(zz, rank) VALUES('pgsz', 32);
+  INSERT INTO zz VALUES('b b b b b b b b b b b b b b');
+  INSERT INTO zz SELECT z FROM zz;
+  INSERT INTO zz SELECT z FROM zz;
+  INSERT INTO zz SELECT z FROM zz;
+  INSERT INTO zz SELECT z FROM zz;
+  INSERT INTO zz SELECT z FROM zz;
+  INSERT INTO zz SELECT z FROM zz;
+  INSERT INTO zz(zz) VALUES('optimize');
+}
+
+do_execsql_test 3.1 { INSERT INTO zz(zz) VALUES('integrity-check'); }
+
+#--------------------------------------------------------------------
+# Mess around with a docsize record. And the averages record. Then
+# check that integrity-check picks it up.
+#
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE aa USING fts5(zz);
+  INSERT INTO aa(zz) VALUES('a b c d e');
+  INSERT INTO aa(zz) VALUES('a b c d');
+  INSERT INTO aa(zz) VALUES('a b c');
+  INSERT INTO aa(zz) VALUES('a b');
+  INSERT INTO aa(zz) VALUES('a');
+  SELECT length(sz) FROM aa_docsize;
+} {1 1 1 1 1}
+do_execsql_test 4.1 { 
+  INSERT INTO aa(aa) VALUES('integrity-check'); 
+}
+
+sqlite3_db_config db DEFENSIVE 0
+do_catchsql_test 4.2 { 
+  BEGIN;
+    UPDATE aa_docsize SET sz = X'44' WHERE rowid = 3;
+    INSERT INTO aa(aa) VALUES('integrity-check'); 
+} {1 {database disk image is malformed}}
+do_execsql_test 4.2.1 {
+  PRAGMA integrity_check(aa);
+} {{malformed inverted index for FTS5 table main.aa}}
+
+do_catchsql_test 4.3 { 
+  ROLLBACK;
+  BEGIN;
+    UPDATE aa_data SET block = X'44' WHERE rowid = 1;
+    INSERT INTO aa(aa) VALUES('integrity-check'); 
+} {1 {database disk image is malformed}}
+
+do_catchsql_test 4.4 { 
+  ROLLBACK;
+  BEGIN;
+    INSERT INTO aa_docsize VALUES(23, X'04');
+    INSERT INTO aa(aa) VALUES('integrity-check'); 
+} {1 {database disk image is malformed}}
+
+do_catchsql_test 4.5 { 
+  ROLLBACK;
+  BEGIN;
+    INSERT INTO aa_docsize VALUES(23, X'00');
+    INSERT INTO aa_content VALUES(23, '');
+    INSERT INTO aa(aa) VALUES('integrity-check'); 
+} {1 {database disk image is malformed}}
+
+#db eval {SELECT rowid, fts5_decode(rowid, block) aS r FROM zz_data} {puts $r}
+#exit
+
+execsql { ROLLBACK }
+
+
+#-------------------------------------------------------------------------
+# Test that integrity-check works on a reasonably large db with many
+# different terms.
+
+# Document generator command.
+proc rnddoc {n} {
+  set doc [list]
+  for {set i 0} {$i<$n} {incr i} {
+    lappend doc [format %.5d [expr int(rand()*10000)]]
+  }
+  return $doc
+}
+db func rnddoc rnddoc
+
+expr srand(0)
+do_execsql_test 5.0 {
+  CREATE VIRTUAL TABLE gg USING fts5(a, prefix="1,2,3");
+  INSERT INTO gg(gg, rank) VALUES('pgsz', 256);
+  INSERT INTO gg VALUES(rnddoc(20));
+  INSERT INTO gg SELECT rnddoc(20) FROM gg;
+  INSERT INTO gg SELECT rnddoc(20) FROM gg;
+  INSERT INTO gg SELECT rnddoc(20) FROM gg;
+  INSERT INTO gg SELECT rnddoc(20) FROM gg;
+  INSERT INTO gg SELECT rnddoc(20) FROM gg;
+  INSERT INTO gg SELECT rnddoc(20) FROM gg;
+  INSERT INTO gg SELECT rnddoc(20) FROM gg;
+  INSERT INTO gg SELECT rnddoc(20) FROM gg;
+  INSERT INTO gg SELECT rnddoc(20) FROM gg;
+  INSERT INTO gg SELECT rnddoc(20) FROM gg;
+  INSERT INTO gg SELECT rnddoc(20) FROM gg;
+}
+
+do_execsql_test 5.1 {
+  INSERT INTO gg(gg) VALUES('integrity-check');
+}
+
+do_execsql_test 5.2 {
+  INSERT INTO gg(gg) VALUES('optimize');
+}
+
+do_execsql_test 5.3 {
+  INSERT INTO gg(gg) VALUES('integrity-check');
+}
+
+unset -nocomplain res
+do_test 5.4.1 {
+  set ok 0
+  for {set i 0} {$i < 10000} {incr i} {
+    set T [format %.5d $i]
+    set res  [db eval { SELECT rowid FROM gg($T) ORDER BY rowid ASC  }]
+    set res2 [db eval { SELECT rowid FROM gg($T) ORDER BY rowid DESC }]
+    if {$res == [lsort -integer $res2]} { incr ok }
+  }
+  set ok
+} {10000}
+
+do_test 5.4.2 {
+  set ok 0
+  for {set i 0} {$i < 100} {incr i} {
+    set T "[format %.3d $i]*"
+    set res  [db eval { SELECT rowid FROM gg($T) ORDER BY rowid ASC  }]
+    set res2 [db eval { SELECT rowid FROM gg($T) ORDER BY rowid DESC }]
+    if {$res == [lsort -integer $res2]} { incr ok }
+  }
+  set ok
+} {100}
+
+#-------------------------------------------------------------------------
+# Similar to 5.*.
+#
+foreach {tn pgsz} {
+  1  32
+  2  36
+  3  40
+  4  44
+  5  48
+} {
+  do_execsql_test 6.$tn.1 {
+    DROP TABLE IF EXISTS hh;
+    CREATE VIRTUAL TABLE hh USING fts5(y);
+    INSERT INTO hh(hh, rank) VALUES('pgsz', $pgsz);
+
+    WITH s(i) AS (SELECT 0 UNION ALL SELECT i+1 FROM s WHERE i<999)
+     INSERT INTO hh SELECT printf('%.3d%.3d%.3d %.3d%.3d%.3d',i,i,i,i+1,i+1,i+1)
+     FROM s;
+
+    WITH s(i) AS (SELECT 0 UNION ALL SELECT i+1 FROM s WHERE i<999)
+     INSERT INTO hh SELECT printf('%.3d%.3d%.3d %.3d%.3d%.3d',i,i,i,i+1,i+1,i+1)
+     FROM s;
+
+    INSERT INTO hh(hh) VALUES('optimize');
+  }
+
+  do_test 6.$tn.2 {
+    set ok 0
+    for {set i 0} {$i < 1000} {incr i} {
+      set T [format %.3d%.3d%.3d $i $i $i]
+      set res  [db eval { SELECT rowid FROM hh($T) ORDER BY rowid ASC  }]
+      set res2 [db eval { SELECT rowid FROM hh($T) ORDER BY rowid DESC }]
+      if {$res == [lsort -integer $res2]} { incr ok }
+    }
+    set ok
+  } {1000}
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 7.0 {
+  PRAGMA encoding = 'UTF-16';
+  CREATE VIRTUAL TABLE vt0 USING fts5(c0);
+  INSERT INTO vt0 VALUES (x'46f0');
+  SELECT quote(c0) FROM vt0;
+} {X'46F0'}
+do_execsql_test 7.1 {
+  INSERT INTO vt0(vt0) VALUES('integrity-check');
+}
+do_execsql_test 7.2 {
+  INSERT INTO vt0(vt0) VALUES('rebuild');
+}
+do_execsql_test 7.3 {
+  INSERT INTO vt0(vt0) VALUES('integrity-check');
+}
+do_execsql_test 7.4 {
+  UPDATE vt0 SET c0='';
+}
+do_execsql_test 7.5 {
+  INSERT INTO vt0(vt0) VALUES('integrity-check');
+}
+
+#-------------------------------------------------------------------------
+# Ticket 7a458c2a5f4
+#
+reset_db
+do_execsql_test 8.0 {
+  PRAGMA locking_mode = EXCLUSIVE;
+  PRAGMA journal_mode = PERSIST;
+  CREATE VIRTUAL TABLE vt0 USING fts5(c0);
+} {exclusive persist}
+do_execsql_test 8.1 {
+  PRAGMA data_version
+} {1}
+do_execsql_test 8.2 {
+  INSERT INTO vt0(vt0) VALUES('integrity-check');
+  PRAGMA data_version;
+} {1}
+do_execsql_test 8.1 {
+  INSERT INTO vt0(vt0, rank) VALUES('usermerge', 2);
+}
+
+#-------------------------------------------------------------------------
+# Ticket [771fe617]
+#
+reset_db
+do_execsql_test 9.0 {
+  PRAGMA encoding = 'UTF16';
+  CREATE VIRTUAL TABLE vt0 USING fts5(c0);
+}
+
+#explain_i { SELECT quote(SUBSTR(x'37', 0)); }
+#execsql { PRAGMA vdbe_trace = 1 }
+do_execsql_test 9.1.1 {
+  SELECT quote(SUBSTR(x'37', 0));
+} {X'37'}
+do_execsql_test 9.1.2 {
+  SELECT quote(x'37');
+} {X'37'}
+
+do_execsql_test 9.2 {
+  INSERT INTO vt0 VALUES (SUBSTR(x'37', 0));
+--  INSERT INTO vt0 VALUES (x'37');
+}
+do_execsql_test 9.3 {
+  INSERT INTO vt0(vt0) VALUES('integrity-check');
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 10.0 {
+  CREATE TABLE t1(i INTEGER PRIMARY KEY, a, b);
+  CREATE VIRTUAL TABLE vt0 USING fts5(a, b, content=t1);
+  INSERT INTO vt0(rowid, a, b) VALUES(1, 'abc', 'def');
+}
+do_catchsql_test 10.1 {
+  INSERT INTO vt0(vt0) VALUES('integrity-check');
+} {0 {}}
+do_catchsql_test 10.2 {
+  INSERT INTO vt0(vt0, rank) VALUES('integrity-check', 0);
+} {0 {}}
+do_catchsql_test 10.3 {
+  INSERT INTO vt0(vt0, rank) VALUES('integrity-check', 1);
+} {1 {database disk image is malformed}}
+do_catchsql_test 10.3 {
+  INSERT INTO t1 VALUES(1, 'abc', 'def');
+  INSERT INTO vt0(vt0, rank) VALUES('integrity-check', 1);
+} {0 {}}
+
+do_execsql_test 10.4 {
+  CREATE VIRTUAL TABLE vt1 USING fts5(a, b, content=);
+  INSERT INTO vt1(rowid, a, b) VALUES(1, 'abc', 'def');
+}
+
+do_catchsql_test 10.5.1 {
+  INSERT INTO vt0(vt0, rank) VALUES('integrity-check', 0);
+} {0 {}}
+do_catchsql_test 10.5.2 {
+  INSERT INTO vt0(vt0, rank) VALUES('integrity-check', 1);
+} {0 {}}
+do_catchsql_test 10.5.3 {
+  INSERT INTO vt0(vt0) VALUES('integrity-check');
+} {0 {}}
+
+reset_db
+proc slang {in} {return [string map {th d e eh} $in]}
+db function slang -deterministic -innocuous slang
+do_execsql_test 11.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b TEXT, c TEXT AS (slang(b)));
+  INSERT INTO t1(b) VALUES('the quick fox jumps over the lazy brown dog');
+  SELECT c FROM t1;
+} {{deh quick fox jumps ovehr deh lazy brown dog}}
+
+do_execsql_test 11.1 {
+  CREATE VIRTUAL TABLE t2 USING fts5(content="t1", c);
+  INSERT INTO t2(t2) VALUES('rebuild');
+  SELECT rowid FROM t2 WHERE t2 MATCH 'deh';
+} {1}
+
+do_execsql_test 11.2 {
+  PRAGMA integrity_check(t2);
+} {ok}
+db close
+sqlite3 db test.db
+
+# FIX ME?
+#
+# FTS5 integrity-check does not care if the content table is unreadable or
+# does not exist.  It only looks for internal inconsistencies in the
+# inverted index.
+#
+do_execsql_test 11.3 {
+  PRAGMA integrity_check(t2);
+} {ok}
+do_execsql_test 11.4 {
+  DROP TABLE t1;
+  PRAGMA integrity_check(t2);
+} {ok}
+
+#-------------------------------------------------------------------
+reset_db
+
+do_execsql_test 12.1 {
+  CREATE VIRTUAL TABLE x1 USING fts5(a, b);
+  INSERT INTO x1 VALUES('one', 'two');
+  INSERT INTO x1 VALUES('three', 'four');
+  INSERT INTO x1 VALUES('five', 'six');
+}
+
+do_execsql_test 12.2 {
+  PRAGMA integrity_check
+} {ok}
+
+db close
+sqlite3 db test.db -readonly 1
+
+explain_i {
+  PRAGMA integrity_check
+  }
+do_execsql_test 12.3 {
+  PRAGMA integrity_check
+} {ok}
+
+
+#-------------------------------------------------------------------
+reset_db
+do_execsql_test 13.1 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, tokenize=ascii);
+  INSERT INTO t1 VALUES('a b c'), ('d e f');
+  PRAGMA integrity_check;
+} {ok}
+
+db close
+sqlite3 db test.db
+do_catchsql_test 13.2 {
+  PRAGMA integrity_check;
+} {0 ok}
+
+do_execsql_test 13.3 {
+  PRAGMA writable_schema = 1;
+  UPDATE sqlite_schema SET sql = 'CREATE VIRTUAL TABLE t1 USING fts5(a, tokenize=blah)'
+  WHERE name = 't1';
+}
+
+db close
+sqlite3 db test.db
+breakpoint
+do_catchsql_test 13.4 {
+  PRAGMA integrity_check;
+} {1 {SQL logic error}}
+
+
+finish_test
diff --git a/ext/fts5/test/fts5integrity2.test b/ext/fts5/test/fts5integrity2.test
new file mode 100644
index 0000000000000000000000000000000000000000..968be3bddfbc4fab69498c29cd4a82d1b2c316c1
--- /dev/null
+++ b/ext/fts5/test/fts5integrity2.test
@@ -0,0 +1,56 @@
+# 2024 September 3
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains tests focused on the integrity-check procedure.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5integrity2
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE t2 USING fts5(a, detail='none');
+  BEGIN;
+    INSERT INTO t2(rowid, a) VALUES(-1, 'hello world');
+    INSERT INTO t2(rowid, a) VALUES(9223372036854775807, 'hello world');
+  COMMIT;
+}
+
+do_execsql_test 2.1 {
+  SELECT rowid FROM t2('hello AND world');
+} {-1 9223372036854775807}
+
+#-------------------------------------------------------------------------
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, detail='none');
+  CREATE TABLE r1(r);
+  
+  WITH c(x) AS (VALUES(1) UNION SELECT x<<1 FROM c)
+    INSERT INTO r1(r) SELECT -1-x FROM c;
+
+  INSERT INTO t1(rowid, a) SELECT r, 'abc' FROM r1;
+}
+
+do_execsql_test 2.1 {
+  PRAGMA integrity_check;
+} {ok}
+
+do_execsql_test 2.2 {
+  SELECT rowid FROM t1('abc') ORDER BY +rowid;
+} [db eval {SELECT r FROM r1 ORDER BY r}]
+
+
+finish_test
diff --git a/ext/fts5/test/fts5interrupt.test b/ext/fts5/test/fts5interrupt.test
new file mode 100644
index 0000000000000000000000000000000000000000..67ef5f7e97f6b965ae04843f5a7d29dd584fed4a
--- /dev/null
+++ b/ext/fts5/test/fts5interrupt.test
@@ -0,0 +1,67 @@
+# 2019 Jan 4
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS5 module.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5interrupt
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a);
+  INSERT INTO t1(t1, rank) VALUES('pgsz', 40);
+}
+db_save_and_close
+
+proc progress_handler {args} {
+  incr ::progress_handler_delay -1
+  if {$::progress_handler_delay<=0} { return 1 } 
+  return 0
+}
+
+unset -nocomplain res
+foreach {tn sql} {
+  1 { INSERT INTO t1(rowid, a) VALUES(0, 'z z z z') }
+  2 { COMMIT }
+} {
+  set bDone 0
+  for {set i 1} {$bDone==0} {incr i} {
+    do_test 1.$tn.$i {
+      db_restore_and_reopen
+      execsql {
+        BEGIN;
+          INSERT INTO t1(rowid, a) VALUES(1, 'a b c d');
+          INSERT INTO t1(rowid, a) VALUES(2, 'd e f g');
+          INSERT INTO t1(rowid, a) VALUES(3, 'h i j k');
+          INSERT INTO t1(rowid, a) VALUES(4, 'l m n o');
+      }
+  
+      set ::progress_handler_delay $i
+      db progress 1 progress_handler
+      set res [catchsql $sql]
+      db close
+      if {$res=="0 {}"} {
+        set bDone 1
+      } else {
+        if {$res!="1 interrupted"} { error "got: $res" }
+      }
+      set {} {}
+    } {}
+  }
+}
+
+finish_test
diff --git a/ext/fts5/test/fts5lastrowid.test b/ext/fts5/test/fts5lastrowid.test
new file mode 100644
index 0000000000000000000000000000000000000000..75866139d374337f4a8045708cfa5173ae6c6c3c
--- /dev/null
+++ b/ext/fts5/test/fts5lastrowid.test
@@ -0,0 +1,72 @@
+# 2017 Feb 27
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests of the last_insert_rowid functionality with fts5.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5lastrowid
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(str);
+}
+
+do_execsql_test 1.1 {
+  INSERT INTO t1 VALUES('one string');
+  INSERT INTO t1 VALUES('two string');
+  INSERT INTO t1 VALUES('three string');
+  SELECT last_insert_rowid();
+} {3}
+
+do_execsql_test 1.2 {
+  BEGIN;
+    INSERT INTO t1 VALUES('one string');
+    INSERT INTO t1 VALUES('two string');
+    INSERT INTO t1 VALUES('three string');
+  COMMIT;
+  SELECT last_insert_rowid();
+} {6}
+
+do_execsql_test 1.3 {
+  INSERT INTO t1(rowid, str) VALUES(-22, 'some more text');
+  SELECT last_insert_rowid();
+} {-22}
+
+do_execsql_test 1.4 {
+  BEGIN;
+    INSERT INTO t1(rowid, str) VALUES(45, 'some more text');
+    INSERT INTO t1(rowid, str) VALUES(46, 'some more text');
+    INSERT INTO t1(rowid, str) VALUES(222, 'some more text');
+    SELECT last_insert_rowid();
+  COMMIT;
+  SELECT last_insert_rowid();
+} {222 222}
+
+do_execsql_test 1.5 {
+  CREATE TABLE x1(x);
+  INSERT INTO x1 VALUES('john'), ('paul'), ('george'), ('ringo');
+  INSERT INTO t1 SELECT x FROM x1;
+  SELECT last_insert_rowid();
+} {226}
+
+do_execsql_test 1.6 {
+  INSERT INTO t1(rowid, str) SELECT rowid+10, x FROM x1;
+  SELECT last_insert_rowid();
+} {14}
+
+
+finish_test
diff --git a/ext/fts5/test/fts5leftjoin.test b/ext/fts5/test/fts5leftjoin.test
new file mode 100644
index 0000000000000000000000000000000000000000..4ef6a8961b0577099fbb537d47ac5937d02310a1
--- /dev/null
+++ b/ext/fts5/test/fts5leftjoin.test
@@ -0,0 +1,43 @@
+# 2014 June 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS5 module.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5leftjoin
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE vt USING fts5(x);
+  INSERT INTO vt VALUES('abc');
+  INSERT INTO vt VALUES('xyz');
+
+  CREATE TABLE t1(a INTEGER PRIMARY KEY);
+  INSERT INTO t1 VALUES(1), (2);
+}
+
+do_execsql_test 1.1 {
+  SELECT * FROM t1 LEFT JOIN (
+    SELECT rowid AS rrr, * FROM vt WHERE vt MATCH 'abc'
+  ) ON t1.a = rrr
+} {1 1 abc 2 {} {}}
+
+do_execsql_test 1.2 {
+  SELECT * FROM t1 LEFT JOIN vt ON (vt MATCH 'abc')
+} {1 abc 2 abc}
+
+finish_test
diff --git a/ext/fts5/test/fts5limits.test b/ext/fts5/test/fts5limits.test
new file mode 100644
index 0000000000000000000000000000000000000000..90d175aa3108f1892a1eedc33c198c40241ba5c1
--- /dev/null
+++ b/ext/fts5/test/fts5limits.test
@@ -0,0 +1,47 @@
+# 2023 May 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5limits
+return_if_no_fts5
+
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE ft USING fts5(x);
+}
+
+# Default limit for expression depth is 256
+#
+foreach {tn nRepeat op bErr} {
+  1  200  AND  0
+  2  200  NOT  0
+  3  200  OR   0
+
+  4  260  AND  0
+  5  260  NOT  1
+  6  260  OR   0
+} {
+  set L [string repeat "abc " $nRepeat]
+  set Q [join $L " $op "]
+
+  set res {0 {}}
+  if {$bErr} {
+    set res "1 {fts5 expression tree is too large (maximum depth 256)}"
+  }
+
+  do_catchsql_test 1.$tn {
+    SELECT * FROM ft($Q)
+  } $res
+}
+
+finish_test
+
diff --git a/ext/fts5/test/fts5locale.test b/ext/fts5/test/fts5locale.test
new file mode 100644
index 0000000000000000000000000000000000000000..e5799fb7fd78b354f2279be3d0a74cd600078169
--- /dev/null
+++ b/ext/fts5/test/fts5locale.test
@@ -0,0 +1,748 @@
+# 2014 Dec 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests focusing on the built-in fts5 tokenizers. 
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5locale
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+proc transform_token {locale token} {
+  switch -- $locale {
+    reverse {
+      set ret ""
+      foreach c [split $token ""] {
+        set ret "$c$ret"
+      }
+      set token $ret
+    }
+
+    default {
+      # no-op
+    }
+  }
+
+  set token
+}
+
+proc tcl_create {args} { return "tcl_tokenize" }
+proc tcl_tokenize {tflags text} {
+  set iToken 1
+  set bSkip 0
+  if {[sqlite3_fts5_locale]=="second"} { set bSkip 1 }
+  foreach {w iStart iEnd} [fts5_tokenize_split $text] {
+    incr iToken
+    if {(($iToken) % ($bSkip + 1))} continue
+
+    set w [transform_token [sqlite3_fts5_locale] $w]
+    sqlite3_fts5_token $w $iStart $iEnd
+  }
+}
+
+#-------------------------------------------------------------------------
+# Check that queries can have a locale attached to them.
+#
+reset_db
+sqlite3_fts5_create_tokenizer -v2 db tcl tcl_create
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, tokenize=tcl);
+  INSERT INTO t1 VALUES('abc');
+  INSERT INTO t1 VALUES('cba');
+} {}
+
+do_execsql_test 1.1 {
+  SELECT rowid, a FROM t1( fts5_locale('en_US', 'abc') );
+} {1 abc}
+
+do_execsql_test 1.2 {
+  SELECT rowid, a FROM t1( fts5_locale('reverse', 'abc') );
+} {2 cba}
+
+
+#-------------------------------------------------------------------------
+# Test that the locale= option exists and seems to accept values. And
+# that fts5_locale() values may only be inserted into an internal-content
+# table if the locale=1 option was specified.
+#
+reset_db
+sqlite3_fts5_create_tokenizer -v2 db tcl tcl_create
+
+do_execsql_test 2.1 {
+  CREATE VIRTUAL TABLE b1 USING fts5(x, y, locale=1, tokenize=tcl);
+  CREATE VIRTUAL TABLE b2 USING fts5(x, y, locale=0, tokenize=tcl);
+
+  CREATE VIRTUAL TABLE ttt USING fts5vocab('b1', instance);
+}
+
+do_catchsql_test 2.2.1 {
+  CREATE VIRTUAL TABLE b3 USING fts5(x, y, locale=2);
+} {1 {malformed locale=... directive}}
+do_catchsql_test 2.2.2 {
+  CREATE VIRTUAL TABLE b3 USING fts5(x, y, locale=111);
+} {1 {malformed locale=... directive}}
+
+do_catchsql_test 2.3 {
+  INSERT INTO b1(b1, rank) VALUES('locale', 0);
+} {1 {SQL logic error}}
+
+do_execsql_test 2.4.1 {
+  INSERT INTO b1 VALUES('abc', 'one two three');
+}
+
+do_execsql_test 2.4.2 {
+  INSERT INTO b1 VALUES('def', fts5_locale('reverse', 'four five six'));
+}
+
+do_execsql_test 2.5 {
+  INSERT INTO b2 VALUES('abc', 'one two three');
+}
+
+do_catchsql_test 2.6 {
+  INSERT INTO b2 VALUES('def', fts5_locale('reverse', 'four five six'));
+} {1 {fts5_locale() requires locale=1}}
+
+do_execsql_test 2.7  { SELECT rowid FROM b1('one')  } {1}
+do_execsql_test 2.8  { SELECT rowid FROM b1('four') } {}
+do_execsql_test 2.9  { SELECT rowid FROM b1('ruof') } 2
+do_execsql_test 2.10 { SELECT rowid FROM b1(fts5_locale('reverse', 'five'))} 2
+
+do_execsql_test 2.11 {
+  SELECT x, quote(y) FROM b1
+} {
+  abc {'one two three'}
+  def {'four five six'}
+}
+
+do_execsql_test 2.12  { SELECT quote(y) FROM b1('ruof') } {
+  {'four five six'}
+}
+
+do_execsql_test 2.13 {
+  INSERT INTO b1(b1) VALUES('integrity-check');
+}
+
+do_execsql_test 2.14 {
+  INSERT INTO b1(b1) VALUES('rebuild');
+}
+do_execsql_test 2.15 {
+  INSERT INTO b1(b1) VALUES('integrity-check');
+}
+
+do_execsql_test 2.16 {
+  DELETE FROM b1 WHERE rowid=2
+}
+do_execsql_test 2.17 {
+  INSERT INTO b1(b1) VALUES('integrity-check');
+}
+
+do_execsql_test 2.18 {
+  INSERT INTO b1(rowid, x, y) VALUES(
+      test_setsubtype(45, 76), 'abc def', 'def abc'
+  );
+}
+
+#-------------------------------------------------------------------------
+# Test the 'delete' command with contentless tables.
+#
+reset_db
+sqlite3_fts5_create_tokenizer -v2 db tcl tcl_create
+
+do_execsql_test 3.1 {
+  CREATE VIRTUAL TABLE c1 USING fts5(x, content=, tokenize=tcl, locale=1);
+  CREATE VIRTUAL TABLE c2 USING fts5vocab('c1', instance);
+
+  INSERT INTO c1 VALUES('hello world');
+  INSERT INTO c1 VALUES( fts5_locale('reverse', 'one two three') );
+}
+
+do_execsql_test 3.2 {
+  SELECT DISTINCT term FROM c2 ORDER BY 1
+} {
+  eerht eno hello owt world
+}
+
+do_execsql_test 3.3 {
+  INSERT INTO c1(c1, rowid, x) 
+    VALUES('delete', 2, fts5_locale('reverse', 'one two three') );
+}
+
+do_execsql_test 3.4 {
+  SELECT DISTINCT term FROM c2 ORDER BY 1
+} {
+  hello world
+}
+
+#-------------------------------------------------------------------------
+# Test that an UPDATE that updates a subset of the columns does not
+# magically discard the locale from those columns not updated.
+#
+reset_db
+sqlite3_fts5_create_tokenizer -v2 db tcl tcl_create
+
+do_execsql_test 4.1 {
+  CREATE VIRTUAL TABLE d1 USING fts5(x, y, locale=1, tokenize=tcl);
+  CREATE VIRTUAL TABLE d2 USING fts5vocab('d1', instance);
+
+  INSERT INTO d1(rowid, x, y) VALUES(1, 'abc', 'def');
+  INSERT INTO d1(rowid, x, y) VALUES(2, 'ghi', fts5_locale('reverse', 'hello'));
+}
+
+do_execsql_test 4.2 {
+  SELECT DISTINCT term FROM d2 ORDER BY 1
+} {
+  abc def ghi olleh
+}
+
+do_execsql_test 4.3 {
+  UPDATE d1 SET x='jkl' WHERE rowid=2;
+}
+
+do_execsql_test 4.4 {
+  SELECT DISTINCT term FROM d2 ORDER BY 1
+} {
+  abc def jkl olleh
+}
+
+do_execsql_test 4.5 {
+  SELECT rowid, * FROM d1
+} {
+  1 abc def
+  2 jkl hello
+}
+
+do_execsql_test 4.6 {
+  UPDATE d1 SET rowid=4 WHERE rowid=2
+}
+
+do_execsql_test 4.7 {
+  SELECT rowid, * FROM d1
+} {
+  1 abc def
+  4 jkl hello
+}
+
+fts5_aux_test_functions db
+
+do_execsql_test 4.8.1 {
+  SELECT fts5_test_columntext(d1) FROM d1('jkl')
+} {{jkl hello}}
+do_execsql_test 4.8.2 {
+  SELECT fts5_test_columntext(d1) FROM d1(fts5_locale('reverse', 'hello'))
+} {{jkl hello}}
+
+do_execsql_test 4.9 {
+  SELECT fts5_test_columnlocale(d1) FROM d1(fts5_locale('reverse', 'hello'))
+} {{{} reverse}}
+
+do_execsql_test 4.10 {
+  SELECT fts5_test_columnlocale(d1) FROM d1
+} {
+  {{} {}}
+  {{} reverse}
+}
+
+#-------------------------------------------------------------------------
+# Test that if an fts5_locale() value is written to an UNINDEXED 
+# column it is stored as text. This is so that blobs and other values
+# can also be stored as is.
+#
+reset_db
+sqlite3_fts5_create_tokenizer -v2 db tcl tcl_create
+
+do_execsql_test 5.1 {
+  CREATE VIRTUAL TABLE t1 USING fts5(
+      x, y UNINDEXED, locale=1, tokenize=tcl
+  );
+
+  INSERT INTO t1(rowid, x, y) VALUES(111,
+      fts5_locale('reverse', 'one two three'),
+      fts5_locale('reverse', 'four five six')
+  );
+}
+
+do_execsql_test 5.2 {
+  SELECT rowid, x, y FROM t1
+} {
+  111 {one two three} {four five six}
+}
+
+do_execsql_test 5.3 {
+  SELECT typeof(c0), typeof(c1), typeof(l0) FROM t1_content
+} {
+  text text text
+}
+
+#-------------------------------------------------------------------------
+
+foreach {tn opt} {
+  1 {}
+  2 {, columnsize=0}
+} {
+  reset_db
+  sqlite3_fts5_create_tokenizer -v2 db tcl tcl_create
+  do_execsql_test 6.$tn.1 "
+    CREATE VIRTUAL TABLE y1 USING fts5(t, locale=1, tokenize=tcl $opt);
+  "
+
+  do_execsql_test 6.$tn.2 {
+    INSERT INTO y1(rowid, t) VALUES
+      (1, fts5_locale('second', 'the city of London')),
+      (2, fts5_locale('second', 'shall have all the old')),
+      (3, fts5_locale('second', 'Liberties and Customs')),
+      (4, fts5_locale('second', 'which it hath been used to have'));
+  }
+
+  fts5_aux_test_functions db
+
+  do_execsql_test 6.$tn.3 {
+    SELECT fts5_test_columnsize(y1) FROM y1
+  } {
+    2 3 2 4
+  }
+
+  do_execsql_test 6.$tn.4 {
+    SELECT rowid, fts5_test_columnsize(y1) FROM y1('shall');
+  } {
+    2 3
+  }
+
+  do_execsql_test 6.$tn.5 {
+    SELECT rowid, fts5_test_columnsize(y1) FROM y1('shall');
+  } {
+    2 3
+  }
+
+  do_execsql_test 6.$tn.6 {
+    SELECT rowid, fts5_test_columnsize(y1) FROM y1('have');
+  } {
+    4 4
+  }
+
+  do_execsql_test 6.$tn.7 {
+    SELECT rowid, highlight(y1, 0, '[', ']') FROM y1('have');
+  } {
+    4 {which it hath been used to [have]}
+  }
+
+  do_execsql_test 6.$tn.8 {
+    SELECT rowid, 
+           highlight(y1, 0, '[', ']'),
+           snippet(y1, 0, '[', ']', '...', 10)
+    FROM y1('Liberties + Customs');
+  } {
+    3 {[Liberties and Customs]}
+      {[Liberties and Customs]}
+  }
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 6.0 {
+  CREATE VIRTUAL TABLE x1 USING fts5(x);
+}
+do_catchsql_test 6.1 {
+  INSERT INTO x1(rowid, x) VALUES(123, fts5_locale('en_AU', 'hello world'));
+} {1 {fts5_locale() requires locale=1}}
+
+do_execsql_test 6.2 {
+  SELECT typeof( fts5_locale(NULL, 'xyz') ), typeof( fts5_locale('', 'abc') );
+} {text text}
+
+#--------------------------------------------------------------------------
+# Test that fts5_locale() works with external-content tables.
+#
+reset_db
+sqlite3_fts5_create_tokenizer -v2 db tcl tcl_create
+
+do_execsql_test 7.1 {
+  CREATE TABLE t1(ii INTEGER PRIMARY KEY, bb BLOB, tt TEXT, locale TEXT);
+  CREATE VIEW v1 AS 
+      SELECT ii AS rowid, bb, fts5_locale(locale, tt) AS tt FROM t1;
+
+  CREATE VIRTUAL TABLE ft USING fts5(
+      bb, tt, locale=1, tokenize=tcl, content=v1
+  );
+
+  INSERT INTO t1 VALUES(1, NULL, 'one two three', NULL);
+  INSERT INTO t1 VALUES(2, '7800616263', 'four five six', 'reverse');
+  INSERT INTO t1 VALUES(3, '000000007800616263', 'seven eight nine', 'second');
+}
+
+do_execsql_test 7.2 {
+  INSERT INTO ft(ft) VALUES('rebuild');
+  INSERT INTO ft(ft) VALUES('integrity-check');
+}
+
+do_execsql_test 7.3 {
+  SELECT rowid, quote(bb), quote(tt) FROM ft
+} {
+  1 NULL {'one two three'}
+  2 '7800616263' {'four five six'}
+  3 '000000007800616263' {'seven eight nine'}
+}
+
+do_execsql_test 7.4 { SELECT rowid FROM ft('six'); } 
+do_execsql_test 7.5 { SELECT rowid FROM ft(fts5_locale('reverse','six')); } 2
+
+fts5_aux_test_functions db
+
+do_execsql_test 7.6 {
+  SELECT fts5_test_columnlocale(ft) FROM ft;
+} {
+  {{} {}} {{} reverse} {{} second}
+}
+
+#-------------------------------------------------------------------------
+# Test that the porter tokenizer works with locales.
+#
+reset_db
+sqlite3_fts5_create_tokenizer -v2 db tcl tcl_create
+
+do_execsql_test 8.1 {
+  CREATE VIRTUAL TABLE ft USING fts5(tt, locale=1, tokenize="porter tcl");
+  CREATE VIRTUAL TABLE vocab USING fts5vocab('ft', instance);
+
+  INSERT INTO ft(rowid, tt) VALUES
+    (111, fts5_locale('second', 'the porter tokenizer is a wrapper tokenizer')),
+    (222, fts5_locale('reverse', 'This value may also be set'));
+}
+
+do_execsql_test 8.1 {
+  SELECT DISTINCT term FROM vocab ORDER BY 1
+} {
+  a eb eulav osla sihT te the token yam
+}
+
+#-------------------------------------------------------------------------
+# Test that position-lists (used by xInst, xPhraseFirst etc.) work with
+# locales and modes other than detail=full.
+#
+foreach {tn detail} {
+  1 detail=full
+  2 detail=none
+  3 detail=column
+} {
+  reset_db
+  sqlite3_fts5_create_tokenizer -v2 db tcl tcl_create
+  do_execsql_test 9.$tn.0 "
+    CREATE VIRTUAL TABLE ft USING fts5(tt, locale=1, tokenize=tcl, $detail);
+  "
+  do_execsql_test 9.$tn.1 {
+    CREATE VIRTUAL TABLE vocab USING fts5vocab('ft', instance);
+    INSERT INTO ft(rowid, tt) VALUES
+      (-1, fts5_locale('second', 'it is an ancient mariner'));
+  }
+
+  do_execsql_test 9.$tn.2 {
+    SELECT DISTINCT term FROM vocab 
+  } {an it mariner}
+
+  do_execsql_test 9.$tn.3 {
+    SELECT highlight(ft, 0, '[', ']') FROM ft('mariner')
+  } {{it is an ancient [mariner]}}
+}
+
+#-------------------------------------------------------------------------
+# Check some corrupt fts5_locale() blob formats are detected.
+#
+foreach_detail_mode $::testprefix {
+
+  reset_db
+  sqlite3_fts5_create_tokenizer -v2 db tcl tcl_create
+  fts5_aux_test_functions db
+  do_execsql_test 10.1 {
+    CREATE TABLE x1(ii INTEGER PRIMARY KEY, x);
+    CREATE VIRTUAL TABLE ft USING fts5(x, 
+        content=x1, content_rowid=ii, locale=1, detail=%DETAIL%, columnsize=0
+    );
+
+    CREATE VIRTUAL TABLE ft2 USING fts5(
+        x, locale=1, detail=%DETAIL%, columnsize=0
+    );
+  }
+  
+  foreach {tn v} {
+    1   X'001152'
+    2   X'0011223344'
+    3   X'00E0B2EB68656c6c6f'
+    4   X'00E0B2EB0068656c6c6f'
+  } {
+    do_execsql_test 10.2.$tn.0 { INSERT INTO ft(ft) VALUES('delete-all') }
+    do_execsql_test 10.2.$tn.1 { DELETE FROM x1; }
+    do_execsql_test 10.2.$tn.2 " INSERT INTO x1 VALUES(NULL, $v) "
+  
+    do_catchsql_test 10.2.$tn.3 {
+      INSERT INTO ft(ft) VALUES('rebuild');
+    } {0 {}}
+  
+    do_catchsql_test 10.2.$tn.4 "
+      SELECT * FROM ft( test_setsubtype($v, 76) );
+    " {1 {fts5: syntax error near ""}}
+  
+    do_execsql_test 10.2.$tn.5 {
+      INSERT INTO ft(rowid, x) VALUES(1, 'hello world');
+    }
+  
+    if {"%DETAIL%"=="full"} {
+      do_execsql_test 10.2.$tn.6 {
+        SELECT fts5_test_poslist(ft) FROM ft('world');
+      } {0.0.1}
+  
+      do_execsql_test 10.2.$tn.7.1 {
+        SELECT fts5_test_columnsize(ft) FROM ft('world');
+      } {1}
+
+      do_execsql_test 10.2.$tn.7.2 {
+        SELECT fts5_test_columnlocale(ft) FROM ft('world');
+      } {{{}}}
+    }
+
+    do_catchsql_test 10.2.$tn.8 {
+      SELECT count(*) FROM ft('hello')
+    } {0 1}
+
+    do_catchsql_test 10.2.$tn.9 {
+      PRAGMA integrity_check;
+    } {0 ok}
+
+    do_execsql_test 10.2.$tn.10 {
+      DELETE FROM x1;
+      INSERT INTO x1(ii, x) VALUES(1, 'hello world');
+    }
+
+    do_catchsql_test 10.2.$tn.11 "
+      INSERT INTO ft(ft, rowid, x) VALUES('delete', 1, test_setsubtype($v,76) )
+    " {0 {}}
+
+    do_catchsql_test 10.2.$tn.12 "
+      INSERT INTO ft(rowid, x) VALUES(2, test_setsubtype($v,76) )
+    " {0 {}}
+
+    do_execsql_test 10.2.$tn.13 {
+      INSERT INTO ft2(rowid, x) VALUES(1, 'hello world');
+    }
+    do_execsql_test 10.2.$tn.14 "UPDATE ft2_content SET c0=$v"
+
+    do_catchsql_test 10.2.$tn.15 {
+      PRAGMA integrity_check;
+    } {0 {{malformed inverted index for FTS5 table main.ft2}}}
+
+    do_execsql_test 10.2.$tn.16 {
+      DELETE FROM ft2_content;
+      INSERT INTO ft2(ft2) VALUES('rebuild');
+    }
+  }
+
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+sqlite3_fts5_create_tokenizer -v2 db tcl tcl_create
+fts5_aux_test_functions db
+do_execsql_test 11.0 {
+  CREATE VIRTUAL TABLE x1 USING fts5(abc, locale=1);
+  INSERT INTO x1(rowid, abc) VALUES(123, fts5_locale('en_US', 'one two three'));
+}
+
+do_catchsql_test 11.1 {
+  SELECT fts5_columnlocale(x1, -1) FROM x1('two');
+} {1 SQLITE_RANGE}
+do_catchsql_test 11.2 {
+  SELECT fts5_columnlocale(x1, 1) FROM x1('two');
+} {1 SQLITE_RANGE}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_test 12.0 {
+  list [catch {
+    sqlite3_fts5_create_tokenizer -v2 -version 3 db tcl tcl_create
+  } msg] $msg
+} {1 {error in fts5_api.xCreateTokenizer_v2()}}
+
+#-------------------------------------------------------------------------
+# Tests for auxiliary function fts5_get_locale().
+#
+reset_db
+
+# Check that if the table does not support locale=1, fts5_get_locale()
+# always returns NULL.
+do_execsql_test 13.1.0 {
+  CREATE VIRTUAL TABLE nolocale USING fts5(a, b);
+  INSERT INTO nolocale VALUES('one two three', 'four five six');
+  INSERT INTO nolocale VALUES('three two one', 'seven eight nine');
+}
+do_execsql_test 13.1.1 {
+  SELECT fts5_get_locale(nolocale, 0) IS NULL FROM nolocale;
+} {1 1}
+do_execsql_test 13.1.2 {
+  SELECT fts5_get_locale(nolocale, 1) IS NULL FROM nolocale('one + two');
+} {1}
+do_execsql_test 13.1.3 {
+  SELECT fts5_get_locale(nolocale, 0) IS NULL FROM nolocale('one AND two');
+} {1 1}
+do_execsql_test 13.1.4 {
+  SELECT 
+      fts5_get_locale(nolocale, 1) IS NULL 
+  FROM nolocale('three AND two') ORDER BY rank
+} {1 1}
+do_catchsql_test 13.1.5 {
+  SELECT fts5_get_locale(nolocale, 2) IS NULL FROM nolocale('three AND two');
+} {1 {column index out of range}}
+do_catchsql_test 13.1.6 {
+  SELECT fts5_get_locale(nolocale, -1) IS NULL FROM nolocale('three AND two');
+} {1 {column index out of range}}
+do_catchsql_test 13.1.7 {
+  SELECT fts5_get_locale(nolocale) IS NULL FROM nolocale('three AND two');
+} {1 {wrong number of arguments to function fts5_get_locale()}}
+do_catchsql_test 13.1.8 {
+  SELECT fts5_get_locale(nolocale, 0, 0) IS NULL FROM nolocale('three AND two');
+} {1 {wrong number of arguments to function fts5_get_locale()}}
+do_catchsql_test 13.1.9 {
+  SELECT fts5_get_locale(nolocale, 'text') FROM nolocale('three AND two');
+} {1 {non-integer argument passed to function fts5_get_locale()}}
+
+
+# Check that if the table does support locale=1, fts5_get_locale()
+# returns the locale of the identified row/column.
+do_execsql_test 13.2.0 {
+  CREATE VIRTUAL TABLE ft USING fts5(a, b, locale=1);
+  INSERT INTO ft VALUES(
+      fts5_locale('th_TH', 'one two three'), 'four five six seven'
+  );
+  INSERT INTO ft VALUES(
+      'three two one', fts5_locale('en_AU', 'seven eight nine')
+  );
+}
+
+do_execsql_test 13.2.1 {
+  SELECT quote(fts5_get_locale(ft, 0)), quote(fts5_get_locale(ft, 1)) FROM ft
+} { 'th_TH' NULL NULL 'en_AU' }
+do_execsql_test 13.2.2 {
+  SELECT 
+    quote(fts5_get_locale(ft, 0)), quote(fts5_get_locale(ft, 1)) 
+  FROM ft('one AND three')
+} { 'th_TH' NULL NULL 'en_AU' }
+do_execsql_test 13.2.3 {
+  SELECT 
+    quote(fts5_get_locale(ft, 0)), quote(fts5_get_locale(ft, 1)) 
+  FROM ft('one AND three') ORDER BY rank
+} { NULL 'en_AU' 'th_TH' NULL }
+do_execsql_test 13.2.4 {
+  SELECT 
+    quote(fts5_get_locale(ft, 0)), quote(fts5_get_locale(ft, 1)) 
+  FROM ft('one AND three') ORDER BY rowid
+} { 'th_TH' NULL NULL 'en_AU' }
+
+do_execsql_test 13.2.5 {
+  SELECT 
+    quote(fts5_get_locale(ft, '0')), quote(fts5_get_locale(ft, 1)) 
+  FROM ft('one AND three') ORDER BY rowid
+} { 'th_TH' NULL NULL 'en_AU' }
+
+do_catchsql_test 13.2.6 {
+  SELECT 
+    quote(fts5_get_locale(ft, '0.0')), quote(fts5_get_locale(ft, 1)) 
+  FROM ft('one AND three') ORDER BY rowid
+} {1 {non-integer argument passed to function fts5_get_locale()}}
+do_catchsql_test 13.2.7 {
+  SELECT 
+    quote(fts5_get_locale(ft, 0.0)), quote(fts5_get_locale(ft, 1)) 
+  FROM ft('one AND three') ORDER BY rowid
+} {1 {non-integer argument passed to function fts5_get_locale()}}
+
+#-------------------------------------------------------------------------
+# Check that UPDATE statements that may affect more than one row work.
+#
+reset_db
+do_execsql_test 14.1 {
+  CREATE VIRTUAL TABLE ft USING fts5(a, b, locale=1);
+}
+
+do_execsql_test 14.2 {
+  INSERT INTO ft VALUES('hello', 'world');
+}
+
+do_execsql_test 14.3 {
+  UPDATE ft SET b = fts5_locale('en_AU', 'world');
+}
+
+do_execsql_test 14.4 {
+  INSERT INTO ft VALUES(X'abcd', X'1234');
+} {}
+
+do_execsql_test 14.5 {
+  SELECT quote(a), quote(b) FROM ft
+} {'hello' 'world' X'ABCD' X'1234'}
+
+do_execsql_test 14.6 {
+  DELETE FROM ft;
+  INSERT INTO ft VALUES(NULL, 'null');
+  INSERT INTO ft VALUES(123, 'int');
+  INSERT INTO ft VALUES(345.0, 'real');
+  INSERT INTO ft VALUES('abc', 'text');
+  INSERT INTO ft VALUES(fts5_locale('abc', 'def'), 'text');
+
+  SELECT a, typeof(a), b FROM ft
+} {
+  {} null null
+  123 integer int
+  345.0 real real
+  abc text text
+  def text text
+}
+
+do_execsql_test 14.7 {
+  SELECT quote(c0), typeof(c0) FROM ft_content
+} {
+  NULL null
+  123 integer
+  345.0 real
+  'abc' text
+  'def' text
+}
+
+#-------------------------------------------------------------------------
+# Check that inserting UNINDEXED columns between indexed columns of a
+# locale=1 table does not cause a problem.
+#
+reset_db
+sqlite3_fts5_create_tokenizer -v2 db tcl tcl_create
+fts5_aux_test_functions db
+
+do_execsql_test 15.1 {
+  CREATE VIRTUAL TABLE ft USING fts5(a, b UNINDEXED, c, locale=1, tokenize=tcl);
+}
+
+do_execsql_test 15.2 {
+  INSERT INTO ft VALUES('one', 'two', 'three');
+  INSERT INTO ft VALUES('one', 'two', fts5_locale('loc', 'three'));
+}
+
+do_execsql_test 15.3 {
+  SELECT c2, l2 FROM ft_content
+} {three {} three loc}
+
+do_execsql_test 15.4 {
+  SELECT c, fts5_columnlocale(ft, 2) FROM ft
+} {three {} three loc}
+
+
+finish_test
+
diff --git a/ext/fts5/test/fts5matchinfo.test b/ext/fts5/test/fts5matchinfo.test
new file mode 100644
index 0000000000000000000000000000000000000000..93361a5fe74a5fff2bc1bf3700b8a1cae8f4e049
--- /dev/null
+++ b/ext/fts5/test/fts5matchinfo.test
@@ -0,0 +1,523 @@
+# 2015 August 05
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5matchinfo
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 { finish_test ; return }
+
+foreach_detail_mode $testprefix {
+
+proc mit {blob} {
+  set scan(littleEndian) i*
+  set scan(bigEndian) I*
+  binary scan $blob $scan($::tcl_platform(byteOrder)) r
+  return $r
+}
+db func mit mit
+
+sqlite3_fts5_register_matchinfo db
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(content, detail=%DETAIL%);
+} 
+
+do_execsql_test 1.1 {
+  INSERT INTO t1(content) VALUES('I wandered lonely as a cloud');
+  INSERT INTO t1(content) VALUES('That floats on high o''er vales and hills,');
+  INSERT INTO t1(content) VALUES('When all at once I saw a crowd,');
+  INSERT INTO t1(content) VALUES('A host, of golden daffodils,');
+  SELECT mit(matchinfo(t1)) FROM t1 WHERE t1 MATCH 'I';
+} {{1 1 1 2 2} {1 1 1 2 2}}
+
+# Now create an FTS4 table that does not specify matchinfo=fts3.
+#
+do_execsql_test 1.2 {
+  CREATE VIRTUAL TABLE t2 USING fts5(content, detail=%DETAIL%);
+  INSERT INTO t2 SELECT * FROM t1;
+  SELECT mit(matchinfo(t2)) FROM t2 WHERE t2 MATCH 'I';
+} {{1 1 1 2 2} {1 1 1 2 2}}
+
+
+#--------------------------------------------------------------------------
+# Proc [do_matchinfo_test] is used to test the FTSX matchinfo() function.
+#
+# The first argument - $tn - is a test identifier. This may be either a
+# full identifier (i.e. "fts3matchinfo-1.1") or, if global var $testprefix
+# is set, just the numeric component (i.e. "1.1").
+#
+# The second argument is the name of an FTSX table. The third is the 
+# full text of a WHERE/MATCH expression to query the table for 
+# (i.e. "t1 MATCH 'abc'"). The final argument - $results - should be a
+# key-value list (serialized array) with matchinfo() format specifiers
+# as keys, and the results of executing the statement:
+#
+#   SELECT matchinfo($tbl, '$key') FROM $tbl WHERE $expr
+#
+# For example:
+#
+#   CREATE VIRTUAL TABLE t1 USING fts4;
+#   INSERT INTO t1 VALUES('abc');
+#   INSERT INTO t1 VALUES('def');
+#   INSERT INTO t1 VALUES('abc abc');
+#
+#   do_matchinfo_test 1.1 t1 "t1 MATCH 'abc'" {
+#     n {3 3}
+#     p {1 1}
+#     c {1 1}
+#     x {{1 3 2} {2 3 2}}
+#   }
+#
+# If the $results list contains keys mapped to "-" instead of a matchinfo()
+# result, then this command computes the expected results based on other
+# mappings to test the matchinfo() function. For example, the command above
+# could be changed to:
+#
+#   do_matchinfo_test 1.1 t1 "t1 MATCH 'abc'" {
+#     n {3 3} p {1 1} c {1 1} x {{1 3 2} {2 3 2}}
+#     pcx -
+#   }
+#
+# And this command would compute the expected results for matchinfo(t1, 'pcx')
+# based on the results of matchinfo(t1, 'p'), matchinfo(t1, 'c') and 
+# matchinfo(t1, 'x') in order to test 'pcx'.
+#
+proc do_matchinfo_test {tn tbl expr results} {
+
+  foreach {fmt res} $results {
+    if {$res == "-"} continue
+    set resarray($fmt) $res
+  }
+
+  set nRow 0
+  foreach {fmt res} [array get resarray] {
+    if {[llength $res]>$nRow} { set nRow [llength $res] }
+  }
+
+  # Construct expected results for any formats for which the caller 
+  # supplied result is "-".
+  #
+  foreach {fmt res} $results {
+    if {$res == "-"} {
+      set res [list]
+      for {set iRow 0} {$iRow<$nRow} {incr iRow} {
+        set rowres [list]
+        foreach c [split $fmt ""] {
+          set rowres [concat $rowres [lindex $resarray($c) $iRow]]
+        }
+        lappend res $rowres
+      }
+      set resarray($fmt) $res
+    }
+  }
+
+  # Test each matchinfo() request individually.
+  #
+  foreach {fmt res} [array get resarray] {
+    set sql "SELECT mit(matchinfo($tbl, '$fmt')) FROM $tbl WHERE $expr"
+    do_execsql_test $tn.$fmt $sql [normalize2 $res]
+  }
+
+  # Test them all executed together (multiple invocations of matchinfo()).
+  #
+  set exprlist [list]
+  foreach {format res} [array get resarray] {
+    lappend exprlist "mit(matchinfo($tbl, '$format'))"
+  }
+  set allres [list]
+  for {set iRow 0} {$iRow<$nRow} {incr iRow} {
+    foreach {format res} [array get resarray] {
+      lappend allres [lindex $res $iRow]
+    }
+  }
+  set sql "SELECT [join $exprlist ,] FROM $tbl WHERE $expr"
+  do_execsql_test $tn.multi $sql [normalize2 $allres]
+}
+proc normalize2 {list_of_lists} {
+  set res [list]
+  foreach elem $list_of_lists {
+    lappend res [list {*}$elem]
+  }
+  return $res
+}
+
+# Similar to [do_matchinfo_test], except that this is a no-op if the FTS5
+# mode is not detail=full.
+#
+proc do_matchinfo_p_test {tn tbl expr results} {
+  if {[detail_is_full]} {
+    uplevel [list do_matchinfo_test $tn $tbl $expr $results]
+  }
+}
+
+do_execsql_test 4.1.0 {
+  CREATE VIRTUAL TABLE t4 USING fts5(x, y, detail=%DETAIL%);
+  INSERT INTO t4 VALUES('a b c d e', 'f g h i j');
+  INSERT INTO t4 VALUES('f g h i j', 'a b c d e');
+}
+
+do_matchinfo_test 4.1.1 t4 {t4 MATCH 'a b c'} {
+  s {{3 0} {0 3}}
+}
+
+do_matchinfo_test 4.1.1 t4 {t4 MATCH 'a b c'} {
+  p {3 3}
+  x {
+    {1 1 1   0 1 1   1 1 1   0 1 1   1 1 1   0 1 1}
+    {0 1 1   1 1 1   0 1 1   1 1 1   0 1 1   1 1 1}
+  }
+}
+
+do_matchinfo_test 4.1.1 t4 {t4 MATCH 'a b c'} {
+  p {3 3}
+  c {2 2}
+  x {
+    {1 1 1   0 1 1   1 1 1   0 1 1   1 1 1   0 1 1}
+    {0 1 1   1 1 1   0 1 1   1 1 1   0 1 1   1 1 1}
+  }
+  n {2 2}
+  l {{5 5} {5 5}}
+  a {{5 5} {5 5}}
+
+  s {{3 0} {0 3}}
+
+  xxxxxxxxxxxxxxxxxx - pcx - xpc - ccc - pppxpcpcx - laxnpc -
+  xpxsscplax -
+}
+
+do_matchinfo_p_test 4.1.2 t4 {t4 MATCH '"g h i"'} {
+  p {1 1}
+  c {2 2}
+  x {
+    {0 1 1   1 1 1}
+    {1 1 1   0 1 1}
+  }
+  n {2 2}
+  l {{5 5} {5 5}}
+  a {{5 5} {5 5}}
+
+  s {{0 1} {1 0}}
+
+  xxxxxxxxxxxxxxxxxx - pcx - xpc - ccc - pppxpcpcx - laxnpc -
+  sxsxs -
+}
+
+do_matchinfo_test 4.1.3 t4 {t4 MATCH 'a b'}     { s {{2 0} {0 2}} }
+do_matchinfo_p_test 4.1.4 t4 {t4 MATCH '"a b" c'} { s {{2 0} {0 2}} }
+do_matchinfo_p_test 4.1.5 t4 {t4 MATCH 'a "b c"'} { s {{2 0} {0 2}} }
+do_matchinfo_test 4.1.6 t4 {t4 MATCH 'd d'}     { s {{1 0} {0 1}} }
+do_matchinfo_test 4.1.7 t4 {t4 MATCH 'f OR abcd'} {
+  x { 
+    {0 1 1  1 1 1  0 0 0  0 0 0} 
+    {1 1 1  0 1 1  0 0 0  0 0 0}
+  }
+}
+do_matchinfo_test 4.1.8 t4 {t4 MATCH 'f NOT abcd'} {
+  x { 
+    {0 1 1  1 1 1  0 0 0  0 0 0}
+    {1 1 1  0 1 1  0 0 0  0 0 0}
+  }
+}
+
+do_execsql_test 4.2.0 {
+  CREATE VIRTUAL TABLE t5 USING fts5(content, detail=%DETAIL%);
+  INSERT INTO t5 VALUES('a a a a a');
+  INSERT INTO t5 VALUES('a b a b a');
+  INSERT INTO t5 VALUES('c b c b c');
+  INSERT INTO t5 VALUES('x x x x x');
+}
+do_matchinfo_test 4.2.1 t5 {t5 MATCH 'a a'}         { 
+  x {{5 8 2   5 8 2} {3 8 2   3 8 2}}
+  s {2 1} 
+}
+do_matchinfo_test 4.2.2 t5 {t5 MATCH 'a b'}         { s {2} }
+do_matchinfo_test 4.2.3 t5 {t5 MATCH 'a b a'}       { s {3} }
+do_matchinfo_test 4.2.4 t5 {t5 MATCH 'a a a'}       { s {3 1} }
+do_matchinfo_p_test 4.2.5 t5 {t5 MATCH '"a b" "a b"'} { s {2} }
+do_matchinfo_test 4.2.6 t5 {t5 MATCH 'a OR b'}      { s {1 2 1} }
+
+do_execsql_test 4.3.0 "INSERT INTO t5 VALUES('x y [string repeat {b } 50000]')";
+
+# It used to be that the second 'a' token would be deferred. That doesn't
+# work any longer.
+if 0 {
+  do_matchinfo_test 4.3.1 t5 {t5 MATCH 'a a'} { 
+    x {{5 8 2   5 5 5} {3 8 2   3 5 5}}
+    s {2 1} 
+  }
+}
+
+do_matchinfo_test 4.3.2 t5 {t5 MATCH 'a b'}         { s {2} }
+do_matchinfo_test 4.3.3 t5 {t5 MATCH 'a b a'}       { s {3} }
+do_matchinfo_test 4.3.4 t5 {t5 MATCH 'a a a'}       { s {3 1} }
+do_matchinfo_p_test 4.3.5 t5 {t5 MATCH '"a b" "a b"'} { s {2} }
+do_matchinfo_test 4.3.6 t5 {t5 MATCH 'a OR b'}      { s {1 2 1 1} }
+
+do_execsql_test 4.4.0.1 { INSERT INTO t5(t5) VALUES('optimize') }
+
+do_matchinfo_test 4.4.2 t5 {t5 MATCH 'a b'}         { s {2} }
+do_matchinfo_test 4.4.1 t5 {t5 MATCH 'a a'}         { s {2 1} }
+do_matchinfo_test 4.4.2 t5 {t5 MATCH 'a b'}         { s {2} }
+do_matchinfo_test 4.4.3 t5 {t5 MATCH 'a b a'}       { s {3} }
+do_matchinfo_test 4.4.4 t5 {t5 MATCH 'a a a'}       { s {3 1} }
+do_matchinfo_p_test 4.4.5 t5 {t5 MATCH '"a b" "a b"'} { s {2} }
+
+do_execsql_test 4.5.0 {
+  CREATE VIRTUAL TABLE t6 USING fts5(a, b, c, detail=%DETAIL%);
+  INSERT INTO t6 VALUES('a', 'b', 'c');
+}
+do_matchinfo_test 4.5.1 t6 {t6 MATCH 'a b c'}       { s {{1 1 1}} }
+
+
+#-------------------------------------------------------------------------
+# Test the outcome of matchinfo() when used within a query that does not
+# use the full-text index (i.e. lookup by rowid or full-table scan).
+#
+do_execsql_test 7.1 {
+  CREATE VIRTUAL TABLE t10 USING fts5(content, detail=%DETAIL%);
+  INSERT INTO t10 VALUES('first record');
+  INSERT INTO t10 VALUES('second record');
+}
+do_execsql_test 7.2 {
+  SELECT typeof(matchinfo(t10)), length(matchinfo(t10)) FROM t10;
+} {blob 8 blob 8}
+do_execsql_test 7.3 {
+  SELECT typeof(matchinfo(t10)), length(matchinfo(t10)) FROM t10 WHERE rowid=1;
+} {blob 8}
+do_execsql_test 7.4 {
+  SELECT typeof(matchinfo(t10)), length(matchinfo(t10)) 
+  FROM t10 WHERE t10 MATCH 'record'
+} {blob 20 blob 20}
+
+#-------------------------------------------------------------------------
+# Test a special case - matchinfo('nxa') with many zero length documents. 
+# Special because "x" internally uses a statement used by both "n" and "a". 
+# This was causing a problem at one point in the obscure case where the
+# total number of bytes of data stored in an fts3 table was greater than
+# the number of rows. i.e. when the following query returns true:
+#
+#   SELECT sum(length(content)) < count(*) FROM fts4table;
+#
+do_execsql_test 8.1 {
+  CREATE VIRTUAL TABLE t11 USING fts5(content, detail=%DETAIL%);
+  INSERT INTO t11(t11, rank) VALUES('pgsz', 32);
+  INSERT INTO t11 VALUES('quitealongstringoftext');
+  INSERT INTO t11 VALUES('anotherquitealongstringoftext');
+  INSERT INTO t11 VALUES('athirdlongstringoftext');
+  INSERT INTO t11 VALUES('andonemoreforgoodluck');
+}
+do_test 8.2 {
+  for {set i 0} {$i < 200} {incr i} {
+    execsql { INSERT INTO t11 VALUES('') }
+  }
+  execsql { INSERT INTO t11(t11) VALUES('optimize') }
+} {}
+do_execsql_test 8.3 {
+  SELECT mit(matchinfo(t11, 'nxa')) FROM t11 WHERE t11 MATCH 'a*'
+} {{204 1 3 3 0} {204 1 3 3 0} {204 1 3 3 0}}
+
+#-------------------------------------------------------------------------
+
+if {[detail_is_full]} {
+  do_execsql_test 9.1 {
+    CREATE VIRTUAL TABLE t12 USING fts5(content, detail=%DETAIL%);
+    INSERT INTO t12 VALUES('a b c d');
+    SELECT mit(matchinfo(t12,'x')) FROM t12 WHERE t12 MATCH 'NEAR(a d, 1) OR a';
+  } {{0 1 1 0 1 1 1 1 1}}
+  do_execsql_test 9.2 {
+    INSERT INTO t12 VALUES('a d c d');
+    SELECT mit(matchinfo(t12,'x')) FROM t12 WHERE t12 MATCH 'NEAR(a d, 1) OR a';
+  } {
+    {0 2 2 0 3 2 1 2 2} {1 2 2 1 3 2 1 2 2}
+  }
+  do_execsql_test 9.3 {
+    INSERT INTO t12 VALUES('a d d a');
+    SELECT mit(matchinfo(t12,'x')) FROM t12 WHERE t12 MATCH 'NEAR(a d, 1) OR a';
+  } {
+    {0 4 3 0 5 3 1 4 3} {1 4 3 1 5 3 1 4 3} {2 4 3 2 5 3 2 4 3}
+  }
+}
+
+#---------------------------------------------------------------------------
+# Test for a memory leak
+#
+do_execsql_test 10.1 {
+  DROP TABLE t10;
+  CREATE VIRTUAL TABLE t10 USING fts5(idx, value, detail=%DETAIL%);
+  INSERT INTO t10 values (1, 'one'),(2, 'two'),(3, 'three');
+  SELECT t10.rowid, t10.*
+    FROM t10
+    JOIN (SELECT 1 AS idx UNION SELECT 2 UNION SELECT 3) AS x
+   WHERE t10 MATCH x.idx
+     AND matchinfo(t10) not null
+   GROUP BY t10.rowid
+   ORDER BY 1;
+} {1 1 one 2 2 two 3 3 three}
+  
+#---------------------------------------------------------------------------
+# Test the 'y' matchinfo flag
+#
+reset_db
+sqlite3_fts5_register_matchinfo db
+do_execsql_test 11.0 {
+  CREATE VIRTUAL TABLE tt USING fts5(x, y, detail=%DETAIL%);
+  INSERT INTO tt VALUES('c d a c d d', 'e a g b d a');   -- 1
+  INSERT INTO tt VALUES('c c g a e b', 'c g d g e c');   -- 2
+  INSERT INTO tt VALUES('b e f d e g', 'b a c b c g');   -- 3
+  INSERT INTO tt VALUES('a c f f g d', 'd b f d e g');   -- 4
+  INSERT INTO tt VALUES('g a c f c f', 'd g g b c c');   -- 5
+  INSERT INTO tt VALUES('g a c e b b', 'd b f b g g');   -- 6
+  INSERT INTO tt VALUES('f d a a f c', 'e e a d c f');   -- 7
+  INSERT INTO tt VALUES('a c b b g f', 'a b a e d f');   -- 8
+  INSERT INTO tt VALUES('b a f e c c', 'f d b b a b');   -- 9
+  INSERT INTO tt VALUES('f d c e a c', 'f a f a a f');   -- 10
+}
+
+db func mit mit
+foreach {tn expr res} {
+  1 "a" {
+      1 {1 2}   2 {1 0}   3 {0 1}   4 {1 0}   5 {1 0}
+      6 {1 0}   7 {2 1}   8 {1 2}   9 {1 1}  10 {1 3}
+  }
+
+  2 "b" {
+      1 {0 1}   2 {1 0}   3 {1 2}   4 {0 1}   5 {0 1}
+      6 {2 2}             8 {2 1}   9 {1 3}            
+  }
+
+  3 "y:a" {
+      1 {0 2}             3 {0 1}                    
+                7 {0 1}   8 {0 2}   9 {0 1}  10 {0 3}
+  }
+
+  4 "x:a" {
+      1 {1 0}   2 {1 0}             4 {1 0}   5 {1 0}
+      6 {1 0}   7 {2 0}   8 {1 0}   9 {1 0}  10 {1 0}
+  }
+
+  5 "a OR b" {
+      1 {1 2 0 1}   2 {1 0 1 0}   3 {0 1 1 2}   4 {1 0 0 1}   5 {1 0 0 1}
+      6 {1 0 2 2}   7 {2 1 0 0}   8 {1 2 2 1}   9 {1 1 1 3}  10 {1 3 0 0}
+  }
+
+  6 "a AND b" {
+      1 {1 2 0 1}   2 {1 0 1 0}   3 {0 1 1 2}   4 {1 0 0 1}   5 {1 0 0 1}
+      6 {1 0 2 2}                 8 {1 2 2 1}   9 {1 1 1 3}              
+  }
+
+  7 "a OR (a AND b)" {
+      1 {1 2 1 2 0 1}   2 {1 0 1 0 1 0}   3 {0 1 0 1 1 2}   4 {1 0 1 0 0 1}   
+      5 {1 0 1 0 0 1}   6 {1 0 1 0 2 2}   7 {2 1 0 0 0 0}   8 {1 2 1 2 2 1}   
+      9 {1 1 1 1 1 3}  10 {1 3 0 0 0 0}
+  }
+
+} {
+
+  if {[string match *:* $expr] && [detail_is_none]} continue
+  do_execsql_test 11.1.$tn.1  {
+    SELECT rowid, mit(matchinfo(tt, 'y')) FROM tt WHERE tt MATCH $expr
+  } $res
+
+  set r2 [list]
+  foreach {rowid L} $res {
+    lappend r2 $rowid
+    set M [list]
+    foreach {a b} $L {
+      lappend M [expr ($a ? 1 : 0) + ($b ? 2 : 0)]
+    }
+    lappend r2 $M
+  }
+
+  do_execsql_test 11.1.$tn.2  {
+    SELECT rowid, mit(matchinfo(tt, 'b')) FROM tt WHERE tt MATCH $expr
+  } $r2
+
+  do_execsql_test 11.1.$tn.2  {
+    SELECT rowid, mit(matchinfo(tt, 'b')) FROM tt WHERE tt MATCH $expr
+  } $r2
+}
+
+#---------------------------------------------------------------------------
+# Test the 'b' matchinfo flag
+#
+reset_db
+sqlite3_fts5_register_matchinfo db
+db func mit mit
+
+do_test 12.0 {
+  set cols [list]
+  for {set i 0} {$i < 50} {incr i} { lappend cols "c$i" }
+  execsql "CREATE VIRTUAL TABLE tt USING fts5([join $cols ,], detail=%DETAIL%)"
+} {}
+
+do_execsql_test 12.1 {
+  INSERT INTO tt (rowid, c4, c45) VALUES(1, 'abc', 'abc');
+  SELECT mit(matchinfo(tt, 'b')) FROM tt WHERE tt MATCH 'abc';
+} [list [list [expr 1<<4] [expr 1<<(45-32)]]]
+
+} ;# foreach_detail_mode
+
+#-------------------------------------------------------------------------
+# Test that a bad fts5() return is detected
+#
+reset_db
+proc xyz {} {}
+db func fts5 -argcount 1 xyz
+do_test 13.1 {
+  list [catch { sqlite3_fts5_register_matchinfo db } msg] $msg
+} {1 SQLITE_ERROR}
+
+#-------------------------------------------------------------------------
+# Test that an invalid matchinfo() flag is detected
+#
+reset_db
+sqlite3_fts5_register_matchinfo db
+do_execsql_test 14.1 {
+  CREATE VIRTUAL TABLE x1 USING fts5(z);
+  INSERT INTO x1 VALUES('a b c a b c a b c');
+} {}
+
+do_catchsql_test 14.2 {
+  SELECT matchinfo(x1, 'd') FROM x1('a b c');
+} {1 {unrecognized matchinfo flag: d}}
+
+#-------------------------------------------------------------------------
+# Test using matchinfo() and similar on a non-full-text query
+#
+do_execsql_test 15.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x, y);
+  INSERT INTO t1 VALUES('a', 'b');
+  INSERT INTO t1 VALUES('c', 'd');
+}
+
+if {$tcl_platform(byteOrder)=="littleEndian"} {
+  set res {X'02000000'}
+} else {
+  set res {X'00000002'}
+}
+do_execsql_test 15.1 {
+  SELECT quote(matchinfo(t1, 'n')) FROM t1 LIMIT 1;
+} $res
+do_execsql_test 15.2 {
+  DELETE FROM t1_content WHERE rowid=1;
+  SELECT quote(matchinfo(t1, 'n')) FROM t1 LIMIT 1;
+} $res
+
+fts5_aux_test_functions db
+do_execsql_test 15.3 {
+  SELECT fts5_test_all(t1) FROM t1 LIMIT 1;
+} {
+  {columnsize {1 1} columntext {c d} columntotalsize {2 2} poslist {} tokenize {c d} rowcount 2}
+}
+
+finish_test
diff --git a/ext/fts5/test/fts5merge.test b/ext/fts5/test/fts5merge.test
new file mode 100644
index 0000000000000000000000000000000000000000..c57c21ded3cea93dcb1f295a5b098c3de9188949
--- /dev/null
+++ b/ext/fts5/test/fts5merge.test
@@ -0,0 +1,243 @@
+# 2014 Dec 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test that focus on incremental merges of segments.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5merge
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+db func repeat [list string repeat]
+
+#-------------------------------------------------------------------------
+# Create an fts index so that:
+#
+#   * the index consists of two top-level segments
+#   * each segment contains records related to $nRowPerSeg rows
+#   * all rows consist of tokens "x" and "y" only.
+#
+# Then run ('merge', 1) until everything is completely merged.
+#
+proc do_merge1_test {testname nRowPerSeg} {
+  set ::nRowPerSeg [expr $nRowPerSeg]
+  do_execsql_test $testname.0 {
+    DROP TABLE IF EXISTS x8;
+    CREATE VIRTUAL TABLE x8 USING fts5(i);
+    INSERT INTO x8(x8, rank) VALUES('pgsz', 32);
+
+    WITH ii(i) AS (SELECT 1 UNION ALL SELECT i+1 FROM ii WHERE i<$::nRowPerSeg)
+      INSERT INTO x8 SELECT repeat('x y ', i % 16) FROM ii;
+
+    WITH ii(i) AS (SELECT 1 UNION ALL SELECT i+1 FROM ii WHERE i<$::nRowPerSeg)
+      INSERT INTO x8 SELECT repeat('x y ', i % 16) FROM ii;
+
+    INSERT INTO x8(x8, rank) VALUES('usermerge', 2);
+  }
+
+  for {set tn 1} {[lindex [fts5_level_segs x8] 0]>0} {incr tn} {
+    do_execsql_test $testname.$tn {
+      INSERT INTO x8(x8, rank) VALUES('merge', 1);
+      INSERT INTO x8(x8) VALUES('integrity-check');
+    }
+    if {$tn>5} break
+  }
+
+  do_test $testname.x [list expr "$tn < 5"] 1
+}
+
+do_merge1_test 1.1   1
+do_merge1_test 1.2   2
+do_merge1_test 1.3   3
+do_merge1_test 1.4   4
+do_merge1_test 1.5  10
+do_merge1_test 1.6  20
+do_merge1_test 1.7 100
+
+#-------------------------------------------------------------------------
+#
+proc do_merge2_test {testname nRow} {
+  db func rnddoc fts5_rnddoc
+
+  do_execsql_test $testname.0 {
+    DROP TABLE IF EXISTS x8;
+    CREATE VIRTUAL TABLE x8 USING fts5(i);
+    INSERT INTO x8(x8, rank) VALUES('pgsz', 32);
+  }
+
+  set ::nRow $nRow
+  do_test $testname.1 {
+    for {set i 0} {$i < $::nRow} {incr i} {
+      execsql { INSERT INTO x8 VALUES( rnddoc(($i%16) + 5) ) }
+      while {[not_merged x8]} {
+        execsql {
+          INSERT INTO x8(x8, rank) VALUES('usermerge', 2);
+          INSERT INTO x8(x8, rank) VALUES('merge', 1);
+          INSERT INTO x8(x8, rank) VALUES('usermerge', 16);
+          INSERT INTO x8(x8) VALUES('integrity-check');
+        }
+      }
+    }
+  } {}
+}
+proc not_merged {tbl} {
+  set segs [fts5_level_segs $tbl]
+  foreach s $segs { if {$s>1} { return 1 } }
+  return 0
+}
+
+do_merge2_test 2.1    5
+do_merge2_test 2.2   10
+do_merge2_test 2.3   20
+
+#-------------------------------------------------------------------------
+# Test that a merge will complete any merge that has already been
+# started, even if the number of input segments is less than the current
+# value of the 'usermerge' configuration parameter.
+#
+db func rnddoc fts5_rnddoc
+
+do_execsql_test 3.1 {
+  DROP TABLE IF EXISTS x8;
+  CREATE VIRTUAL TABLE x8 USING fts5(i);
+  INSERT INTO x8(x8, rank) VALUES('pgsz', 32);
+  INSERT INTO x8 VALUES(rnddoc(100));
+  INSERT INTO x8 VALUES(rnddoc(100));
+}
+do_test 3.2 {
+  execsql {
+    INSERT INTO x8(x8, rank) VALUES('usermerge', 4);
+    INSERT INTO x8(x8, rank) VALUES('merge', 1);
+  }
+  fts5_level_segs x8
+} {2}
+
+do_test 3.3 {
+  execsql {
+    INSERT INTO x8(x8, rank) VALUES('usermerge', 2);
+    INSERT INTO x8(x8, rank) VALUES('merge', 1);
+  }
+  fts5_level_segs x8
+} {2 1}
+
+do_test 3.4 {
+  execsql { INSERT INTO x8(x8, rank) VALUES('usermerge', 4) }
+  while {[not_merged x8]} {
+    execsql { INSERT INTO x8(x8, rank) VALUES('merge', 1) }
+  }
+  fts5_level_segs x8
+} {0 1}
+
+#-------------------------------------------------------------------------
+#
+proc mydoc {} {
+  set x [lindex {a b c d e f g h i j} [expr int(rand()*10)]]
+  return [string repeat "$x " 30]
+}
+db func mydoc mydoc
+
+proc mycount {} {
+  set res [list]
+  foreach x {a b c d e f g h i j} {
+    lappend res [db one {SELECT count(*) FROM x8 WHERE x8 MATCH $x}]
+  }
+  set res
+}
+
+  #1 32
+foreach {tn pgsz} {
+  2 1000
+} {
+  do_execsql_test 4.$tn.1 {
+    DROP TABLE IF EXISTS x8;
+    CREATE VIRTUAL TABLE x8 USING fts5(i);
+    INSERT INTO x8(x8, rank) VALUES('pgsz', $pgsz);
+  }
+
+  do_execsql_test 4.$tn.2 {
+    INSERT INTO x8(x8, rank) VALUES('merge', 1);
+  }
+
+  do_execsql_test 4.$tn.3 {
+    WITH ii(i) AS (SELECT 1 UNION ALL SELECT i+1 FROM ii WHERE i<100)
+      INSERT INTO x8 SELECT mydoc() FROM ii;
+    WITH ii(i) AS (SELECT 1 UNION ALL SELECT i+1 FROM ii WHERE i<100)
+      INSERT INTO x8 SELECT mydoc() FROM ii;
+    INSERT INTO x8(x8, rank) VALUES('usermerge', 2);
+  }
+
+  set expect [mycount]
+    for {set i 0} {$i < 20} {incr i} {
+      do_test 4.$tn.4.$i {
+        execsql { INSERT INTO x8(x8, rank) VALUES('merge', 1); }
+        mycount
+      } $expect
+      break
+    }
+#  db eval {SELECT fts5_decode(rowid, block) AS r FROM x8_data} { puts $r }
+}
+
+#-------------------------------------------------------------------------
+# Test that the 'merge' command does not modify the database if there is
+# no work to do. 
+
+do_execsql_test 5.1 {
+  CREATE VIRTUAL TABLE x9 USING fts5(one, two);
+  INSERT INTO x9(x9, rank) VALUES('pgsz', 32);
+  INSERT INTO x9(x9, rank) VALUES('automerge', 2);
+  INSERT INTO x9(x9, rank) VALUES('usermerge', 2);
+  INSERT INTO x9 VALUES(rnddoc(100), rnddoc(100));
+  INSERT INTO x9 VALUES(rnddoc(100), rnddoc(100));
+  INSERT INTO x9 VALUES(rnddoc(100), rnddoc(100));
+  INSERT INTO x9 VALUES(rnddoc(100), rnddoc(100));
+  INSERT INTO x9 VALUES(rnddoc(100), rnddoc(100));
+  INSERT INTO x9 VALUES(rnddoc(100), rnddoc(100));
+  INSERT INTO x9 VALUES(rnddoc(100), rnddoc(100));
+  INSERT INTO x9 VALUES(rnddoc(100), rnddoc(100));
+}
+
+do_test 5.2 {
+  while 1 {
+    set nChange [db total_changes]
+    execsql { INSERT INTO x9(x9, rank) VALUES('merge', 1); }
+    set nChange [expr [db total_changes] - $nChange]
+    #puts $nChange
+    if {$nChange<2} break
+  }
+} {}
+
+
+#--------------------------------------------------------------------------
+# Test that running 'merge' on an empty database does not cause a 
+# problem.
+#
+reset_db
+do_execsql_test 6.0 {
+  CREATE VIRTUAL TABLE g1 USING fts5(a, b);
+}
+do_execsql_test 6.1 {
+  INSERT INTO g1(g1, rank) VALUES('merge', 10);
+}
+do_execsql_test 6.2 {
+  INSERT INTO g1(g1, rank) VALUES('merge', -10);
+}
+do_execsql_test 6.3 {
+  INSERT INTO g1(g1) VALUES('integrity-check');
+}
+
+
+
+finish_test
diff --git a/ext/fts5/test/fts5merge2.test b/ext/fts5/test/fts5merge2.test
new file mode 100644
index 0000000000000000000000000000000000000000..e8f5bb161cc2b6d1fe4466be81ef961a70dae077
--- /dev/null
+++ b/ext/fts5/test/fts5merge2.test
@@ -0,0 +1,57 @@
+# 2014 Dec 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test that focus on incremental merges of segments.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5merge2
+return_if_no_fts5
+
+proc dump_structure {} {
+  db eval {SELECT fts5_decode(id, block) AS t FROM t1_data WHERE id=10} {
+    foreach lvl [lrange $t 1 end] {
+      set seg [string repeat . [expr [llength $lvl]-2]]
+      puts "[lrange $lvl 0 1] $seg"
+    }
+  }
+}
+
+foreach_detail_mode $testprefix {
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x, detail=%DETAIL%);
+  INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
+  INSERT INTO t1(t1, rank) VALUES('crisismerge', 2);
+  INSERT INTO t1 VALUES('1 2 3 4');
+}
+
+expr srand(0)
+db func rnddoc fts5_rnddoc
+do_test 1.1 {
+  for {set i 0} {$i < 100} {incr i} {
+    execsql {
+      BEGIN;
+        DELETE FROM t1 WHERE rowid = 1;
+        INSERT INTO t1(rowid, x) VALUES(1, '1 2 3 4');
+        INSERT INTO t1 VALUES(rnddoc(10));
+      COMMIT;
+    }
+  }
+} {}
+
+do_execsql_test 1.2 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+}
+
+}
+
+finish_test
diff --git a/ext/fts5/test/fts5misc.test b/ext/fts5/test/fts5misc.test
new file mode 100644
index 0000000000000000000000000000000000000000..c2e580c5640912a5d4fc1aa714fea3ce8eaf0369
--- /dev/null
+++ b/ext/fts5/test/fts5misc.test
@@ -0,0 +1,669 @@
+# 2019 September 02
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS5 module.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5misc
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a);
+}
+
+do_catchsql_test 1.1.1 { 
+  SELECT highlight(t1, 4, '<b>', '</b>') FROM t1('*'); 
+} {1 {unknown special query: }}
+do_catchsql_test 1.1.2 {
+  SELECT a FROM t1
+    WHERE rank = (SELECT highlight(t1, 4, '<b>', '</b>') FROM t1('*'));
+} {1 {unknown special query: }}
+
+do_catchsql_test 1.2.1 { 
+  SELECT highlight(t1, 4, '<b>', '</b>') FROM t1('*id'); 
+} {1 {no such cursor: 4}}
+
+do_catchsql_test 1.2.2 {
+  SELECT a FROM t1
+    WHERE rank = (SELECT highlight(t1, 4, '<b>', '</b>') FROM t1('*id'));
+} {1 {no such cursor: 6}}
+
+do_catchsql_test 1.3.1 { 
+  SELECT highlight(t1, 4, '<b>', '</b>') FROM t1('*reads'); 
+} {1 {no such cursor: 0}}
+
+do_catchsql_test 1.3.2 {
+  SELECT a FROM t1
+    WHERE rank = (SELECT highlight(t1, 4, '<b>', '</b>') FROM t1('*reads'));
+} {1 {no such cursor: 0}}
+
+db close
+sqlite3 db test.db
+
+do_catchsql_test 1.3.3 {
+  SELECT a FROM t1
+    WHERE rank = (SELECT highlight(t1, 4, '<b>', '</b>') FROM t1('*reads'));
+} {1 {no such cursor: 0}}
+
+fts5_aux_test_functions db
+do_catchsql_test 1.3.4 {
+  SELECT fts5_columntext(t1) FROM t1('*reads');
+} {1 {no such cursor: 0}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 2.0 {
+  CREATE TABLE t0(c0);
+  CREATE VIRTUAL TABLE vt0 USING fts5(c0);
+}
+do_execsql_test 2.1.1 {
+  BEGIN TRANSACTION;
+  INSERT INTO vt0(c0) VALUES ('xyz');
+}
+do_execsql_test 2.1.2 {
+  ALTER TABLE t0 ADD COLUMN c5;
+}
+do_execsql_test 2.1.3 {
+  INSERT INTO vt0(vt0) VALUES('integrity-check');
+}
+do_execsql_test 2.1.4 {
+  INSERT INTO vt0(c0) VALUES ('abc');
+  COMMIT
+}
+do_execsql_test 2.1.5 {
+  INSERT INTO vt0(vt0) VALUES('integrity-check');
+}
+
+reset_db
+do_execsql_test 2.2.1 {
+  CREATE TABLE t0(c0);
+  CREATE VIRTUAL TABLE vt0 USING fts5(c0);
+  BEGIN TRANSACTION;
+  INSERT INTO vt0(c0) VALUES ('xyz');
+}
+
+do_execsql_test 2.2.2 {
+  ALTER TABLE t0 RENAME TO t1;
+}
+do_execsql_test 2.2.3 {
+  INSERT INTO vt0(vt0) VALUES('integrity-check');
+}
+do_execsql_test 2.2.4 {
+  INSERT INTO vt0(c0) VALUES ('abc');
+  COMMIT;
+}
+do_execsql_test 2.2.5 {
+  INSERT INTO vt0(vt0) VALUES('integrity-check');
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE vt0 USING fts5(a);
+  PRAGMA reverse_unordered_selects = true;
+  INSERT INTO vt0 VALUES('365062398'), (0), (0);
+  INSERT INTO vt0(vt0, rank) VALUES('pgsz', '38');
+}
+do_execsql_test 3.1 {
+  UPDATE vt0 SET a = 399905135; -- unexpected: database disk image is malformed
+}
+do_execsql_test 3.2 {
+  INSERT INTO vt0(vt0) VALUES('integrity-check');
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE vt0 USING fts5(c0);
+  INSERT INTO vt0(c0) VALUES ('xyz');
+}
+
+do_execsql_test 4.1 {
+  BEGIN;
+    INSERT INTO vt0(c0) VALUES ('abc');
+    INSERT INTO vt0(vt0) VALUES('rebuild');
+  COMMIT;
+}
+
+do_execsql_test 4.2 {
+  INSERT INTO vt0(vt0) VALUES('integrity-check');
+}
+
+do_execsql_test 4.3 {
+  BEGIN;
+    INSERT INTO vt0(vt0) VALUES('rebuild');
+    INSERT INTO vt0(vt0) VALUES('rebuild');
+  COMMIT;
+}
+
+do_execsql_test 4.4 {
+  INSERT INTO vt0(vt0) VALUES('integrity-check');
+}
+
+#-------------------------------------------------------------------------
+# Ticket [81a7f7b9].
+#
+reset_db
+do_execsql_test 5.0 {
+  CREATE VIRTUAL TABLE vt0 USING fts5(c0, c1);
+  INSERT INTO vt0(vt0, rank) VALUES('pgsz', '65536');
+  WITH s(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<1236
+  )
+  INSERT INTO vt0(c0) SELECT '0' FROM s;
+} {}
+
+do_execsql_test 5.1 {
+  UPDATE vt0 SET c1 = 'T,D&p^y/7#3*v<b<4j7|f';
+}
+
+do_execsql_test 5.2 {
+  INSERT INTO vt0(vt0) VALUES('integrity-check');
+}
+
+do_catchsql_test 5.3 {
+  INSERT INTO vt0(vt0, rank) VALUES('pgsz', '65537');
+} {1 {SQL logic error}}
+
+#-------------------------------------------------------------------------
+# Ticket [d392017c].
+#
+reset_db
+do_execsql_test 6.0 {
+  CREATE VIRTUAL TABLE vt0 USING fts5(c0);
+  WITH s(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<10000
+  )
+  INSERT INTO vt0(c0) SELECT '0' FROM s;
+  INSERT INTO vt0(vt0, rank) VALUES('crisismerge', 2000);
+  INSERT INTO vt0(vt0, rank) VALUES('automerge', 0);
+} {}
+
+do_execsql_test 6.1 {
+  INSERT INTO vt0(vt0) VALUES('rebuild');
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 7.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x);
+  INSERT INTO t1(rowid, x) VALUES(1, 'hello world');
+  INSERT INTO t1(rowid, x) VALUES(2, 'well said');
+  INSERT INTO t1(rowid, x) VALUES(3, 'hello said');
+  INSERT INTO t1(rowid, x) VALUES(4, 'well world');
+
+  CREATE TABLE t2 (a, b);
+  INSERT INTO t2 VALUES(1, 'hello');
+  INSERT INTO t2 VALUES(2, 'world');
+  INSERT INTO t2 VALUES(3, 'said');
+  INSERT INTO t2 VALUES(4, 'hello');
+}
+
+do_execsql_test 7.1 {
+  SELECT rowid FROM t1 WHERE (rowid, x) IN (SELECT a, b FROM t2); 
+}
+
+do_execsql_test 7.2 {
+  SELECT rowid FROM t1 WHERE rowid=2 AND t1 = 'hello';
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 8.0 {
+  CREATE VIRTUAL TABLE vt0 USING fts5(c0, tokenize = "ascii", prefix = 1);
+  INSERT INTO vt0(c0) VALUES (x'd1');
+}
+
+do_execsql_test 8.1 {
+  INSERT INTO vt0(vt0) VALUES('integrity-check');
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 9.0 {
+  CREATE VIRTUAL TABLE t1 using FTS5(mailcontent);
+  insert into t1(rowid, mailcontent) values
+      (-4764623217061966105, 'we are going to upgrade'),
+      (8324454597464624651, 'we are going to upgrade');
+}
+
+do_execsql_test 9.1 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+}
+
+do_execsql_test 9.2 {
+  SELECT rowid FROM t1('upgrade');
+} {
+  -4764623217061966105 8324454597464624651
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 10.0 {
+  CREATE VIRTUAL TABLE vt1 USING fts5(c1, c2, prefix = 1, tokenize = "ascii");
+  INSERT INTO vt1 VALUES (x'e4', '䔬');
+}
+
+do_execsql_test 10.1 {
+  SELECT quote(CAST(c1 AS blob)), quote(CAST(c2 AS blob)) FROM vt1
+} {X'E4' X'E494AC'}
+
+do_execsql_test 10.2 {
+  INSERT INTO vt1(vt1) VALUES('integrity-check');
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 11.0 {
+  CREATE VIRTUAL TABLE vt0 USING fts5(
+      c0, prefix = 71, tokenize = "porter ascii", prefix = 9
+  );
+} {}
+do_execsql_test 11.1 {
+  BEGIN;
+  INSERT INTO vt0(c0) VALUES (x'e8');
+}
+do_execsql_test 11.2 {
+  INSERT INTO vt0(vt0) VALUES('integrity-check');
+}
+
+#-------------------------------------------------------------------------
+# Ticket [752fdbf6] 
+#
+reset_db
+do_execsql_test 11.0 {
+  PRAGMA encoding = 'UTF-16';
+  CREATE VIRTUAL TABLE vt0 USING fts5(c0, c1);
+  INSERT INTO vt0(vt0, rank) VALUES('pgsz', '37');
+  INSERT INTO vt0(c0, c1) VALUES (0.66077, 1957391816);
+}
+do_execsql_test 11.1 {
+  INSERT INTO vt0(vt0) VALUES('integrity-check');
+}
+
+#-------------------------------------------------------------------------
+# Ticket [7c0e06b16] 
+#
+do_execsql_test 12.0 {
+  CREATE TABLE t1(a, b, rank);
+  INSERT INTO t1 VALUES('a', 'hello', '');
+  INSERT INTO t1 VALUES('b', 'world', '');
+
+  CREATE VIRTUAL TABLE ft USING fts5(a);
+  INSERT INTO ft VALUES('b');
+  INSERT INTO ft VALUES('y');
+
+  CREATE TABLE t2(x, y, ft);
+  INSERT INTO t2 VALUES(1, 2, 'x');
+  INSERT INTO t2 VALUES(3, 4, 'b');
+}
+
+do_execsql_test 12.1 {
+  SELECT * FROM t1 NATURAL JOIN ft WHERE ft MATCH('b')
+} {b world {}}
+do_execsql_test 12.2 {
+  SELECT * FROM ft NATURAL JOIN t1 WHERE ft MATCH('b')
+} {b world {}}
+do_execsql_test 12.3 {
+  SELECT * FROM t2 JOIN ft USING (ft)
+} {3 4 b b}
+
+#-------------------------------------------------------------------------
+# Forum post https://sqlite.org/forum/forumpost/21127c1160
+#
+reset_db
+sqlite3_db_config db DEFENSIVE 1
+
+do_execsql_test 13.1.0 {
+  CREATE TABLE a (id INTEGER PRIMARY KEY, name TEXT);
+  CREATE VIRTUAL TABLE b USING fts5(name);
+  CREATE TRIGGER a_trigger AFTER INSERT ON a BEGIN 
+    INSERT INTO b (name) VALUES ('foo');
+  END;
+}
+
+do_test 13.1.1 {
+  set ::STMT [
+    sqlite3_prepare db "INSERT INTO a VALUES (1, 'foo') RETURNING id;" -1 dummy
+  ]
+  sqlite3_step $::STMT
+} {SQLITE_ROW}
+
+do_test 13.1.2 {
+  sqlite3_finalize $::STMT
+} {SQLITE_OK}
+
+do_test 13.1.3 {
+  sqlite3_errmsg db
+} {not an error}
+
+reset_db
+sqlite3_db_config db DEFENSIVE 1
+do_execsql_test 13.2.0 {
+  BEGIN;
+  CREATE TABLE a (id INTEGER PRIMARY KEY, name TEXT);
+  CREATE VIRTUAL TABLE b USING fts5(name);
+  CREATE TRIGGER a_trigger AFTER INSERT ON a BEGIN 
+    INSERT INTO b (name) VALUES ('foo');
+  END;
+}
+
+do_test 13.2.1 {
+  set ::STMT [
+    sqlite3_prepare db "INSERT INTO a VALUES (1, 'foo') RETURNING id;" -1 dummy
+  ]
+  sqlite3_step $::STMT
+} {SQLITE_ROW}
+
+do_test 13.2.2 {
+  sqlite3_finalize $::STMT
+} {SQLITE_OK}
+
+do_test 13.2.3 {
+  sqlite3_errmsg db
+} {not an error}
+
+#-------------------------------------------------------------------------
+reset_db
+db close
+sqlite3 db test.db -uri 1
+
+do_execsql_test 14.0 {
+  PRAGMA locking_mode=EXCLUSIVE;
+  BEGIN;
+  ATTACH 'file:/one?vfs=memdb' AS aux1;
+  ATTACH 'file:/one?vfs=memdb' AS aux2;
+  CREATE VIRTUAL TABLE t1 USING fts5(x);
+} {exclusive}
+do_catchsql_test 14.1 {
+  ANALYZE;
+} {1 {database is locked}}
+do_catchsql_test 14.2 {
+  COMMIT;
+} {1 {database is locked}}
+do_catchsql_test 14.3 {
+  COMMIT;
+} {1 {database is locked}}
+do_catchsql_test 14.4 {
+  ROLLBACK;
+} {0 {}}
+
+#-------------------------------------------------------------------------
+reset_db
+sqlite3 db2 test.db
+
+do_execsql_test 15.0 {
+  CREATE TABLE t1(a, b);
+  BEGIN;
+    SELECT * FROM t1;
+}
+
+do_execsql_test -db db2 15.1 {
+  BEGIN; 
+    CREATE VIRTUAL TABLE x1 USING fts5(y);
+}
+do_test 15.2 {
+  list [catch { db2 eval COMMIT } msg] $msg
+} {1 {database is locked}}
+do_execsql_test -db db2 15.3 {
+  SAVEPOINT one;
+} {}
+do_execsql_test 15.4 END
+do_test 15.5 {
+  list [catch { db2 eval COMMIT } msg] $msg
+} {0 {}}
+
+db2 close
+
+#-------------------------------------------------------------------------
+reset_db
+forcedelete test.db2
+sqlite3 db2 test.db
+do_execsql_test 16.0 {
+
+  ATTACH 'test.db2' AS aux;
+  CREATE TABLE aux.t2(x,y);
+  INSERT INTO t2 VALUES(1, 2);
+  CREATE VIRTUAL TABLE x1 USING fts5(a);
+  BEGIN;
+    INSERT INTO x1 VALUES('abc');
+    INSERT INTO t2 VALUES(3, 4);
+}
+
+do_execsql_test -db db2 16.1 {
+  ATTACH 'test.db2' AS aux;
+  BEGIN;
+    SELECT * FROM t2
+} {1 2}
+
+do_catchsql_test 16.2 {
+  COMMIT;
+} {1 {database is locked}}
+
+do_execsql_test 16.3 {
+  INSERT INTO x1 VALUES('def');
+}
+
+do_execsql_test -db db2 16.4 { 
+  END 
+}
+
+do_execsql_test 16.5 {
+  COMMIT
+}
+
+do_execsql_test -db db2 16.6 {
+  SELECT * FROM x1
+} {abc def}
+
+db2 close
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 17.1 {
+  CREATE VIRTUAL TABLE ft USING fts5(x, tokenize="unicode61 separators 'X'");
+}
+do_execsql_test 17.2 {
+  SELECT 0 FROM ft WHERE ft MATCH 'X' AND ft MATCH 'X'
+}
+do_execsql_test 17.3 {
+  SELECT 0 FROM ft('X')
+}
+
+do_execsql_test 17.4 {
+  CREATE VIRTUAL TABLE t0 USING fts5(c0, t="trigram");
+  INSERT INTO t0 VALUES('assertionfaultproblem');
+}
+do_execsql_test 17.5 {
+  SELECT 0 FROM t0(0) WHERE c0 GLOB 0;
+} {}
+
+do_execsql_test 17.5 {
+  SELECT c0 FROM t0 WHERE c0 GLOB '*f*';
+} {assertionfaultproblem}
+do_execsql_test 17.5 {
+  SELECT c0 FROM t0 WHERE c0 GLOB '*faul*';
+} {assertionfaultproblem}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 18.0 {
+  BEGIN;
+    CREATE VIRTUAL TABLE t1 USING fts5(text);
+    ALTER TABLE t1 RENAME TO t2;
+}
+
+do_execsql_test 18.1 {
+    DROP TABLE t2;
+}
+
+do_execsql_test 18.2 {
+  COMMIT;
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 19.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(text);
+  CREATE TABLE t2(text);
+  BEGIN;
+    INSERT INTO t1 VALUES('one');
+    INSERT INTO t1 VALUES('two');
+    INSERT INTO t1 VALUES('three');
+    INSERT INTO t1 VALUES('one');
+    INSERT INTO t1 VALUES('two');
+    INSERT INTO t1 VALUES('three');
+    SAVEPOINT one;
+      INSERT INTO t2 VALUES('one');
+      INSERT INTO t2 VALUES('two');
+      INSERT INTO t2 VALUES('three');
+    ROLLBACK TO one;
+  COMMIT;
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 20.0 {
+  CREATE VIRTUAL TABLE x1 USING fts5(a);
+  INSERT INTO x1(rowid, a) VALUES
+      (1, 'a b c d'),
+      (2, 'x b c d'),
+      (3, 'x y z d'),
+      (4, 'a y c x');
+}
+
+do_execsql_test 20.1 {
+  SELECT rowid FROM x1 WHERE x1 MATCH 'a' AND x1 MATCH 'b';
+} {1}
+
+do_execsql_test 20.2 {
+  SELECT rowid FROM x1 WHERE x1 MATCH 'a' AND x1 MATCH 'y';
+} {4}
+
+do_execsql_test 20.3 {
+  SELECT rowid FROM x1 WHERE x1 MATCH 'a' OR x1 MATCH 'y';
+} {1 4 3}
+
+do_execsql_test 20.4 {
+  SELECT rowid FROM x1 WHERE x1 MATCH 'a' OR (x1 MATCH 'y' AND x1 MATCH 'd');
+} {1 4 3}
+
+do_execsql_test 20.5 {
+  SELECT rowid FROM x1 WHERE x1 MATCH 'z' OR (x1 MATCH 'a' AND x1 MATCH 'd');
+} {3 1}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 21.0 {
+  CREATE TABLE t1(ii INTEGER, x TEXT, y TEXT);
+  CREATE VIRTUAL TABLE xyz USING fts5(content_rowid=ii, content=t1, x, y);
+  INSERT INTO t1 VALUES(1, 'one', 'i');
+  INSERT INTO t1 VALUES(2, 'two', 'ii');
+  INSERT INTO t1 VALUES(3, 'tree', 'iii');
+  INSERT INTO xyz(xyz) VALUES('rebuild');
+}
+
+do_execsql_test 21.1 {
+  UPDATE xyz SET y='TWO' WHERE rowid=2;
+  UPDATE t1 SET y='TWO' WHERE ii=2;
+}
+
+do_execsql_test 21.2 {
+  PRAGMA integrity_check
+} {ok}
+
+breakpoint
+sqlite3_db_config db DEFENSIVE 1
+do_execsql_test 21.3 {
+  CREATE TABLE xyz_notashadow(x, y);
+  DROP TABLE xyz_notashadow;
+}
+sqlite3_db_config db DEFENSIVE 0
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 22.0 {
+  SELECT fts5(NULL);
+} {{}}
+do_execsql_test 22.1 {
+  SELECT count(*) FROM (
+    SELECT fts5_source_id()
+  )
+} {1}
+execsql_pp {
+  SELECT fts5_source_id()
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 23.0 {
+  CREATE VIRTUAL TABLE x1 USING fts5(x);
+  INSERT INTO x1 VALUES('one + two + three');
+  INSERT INTO x1 VALUES('one + xyz + three');
+  INSERT INTO x1 VALUES('xyz + two + xyz');
+}
+do_execsql_test 23.1 {
+  SELECT rowid FROM x1('one + two + three');
+} {1}
+
+do_execsql_test 23.2 {
+  SELECT rowid FROM x1('^".." AND one');
+} {}
+
+do_execsql_test 23.3 {
+  SELECT rowid FROM x1('abc NEAR ".." NEAR def');
+} {}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 24.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, detail='none');
+  INSERT INTO t1(a) VALUES('a');
+}
+
+do_execsql_test 24.2 {
+  SELECT rank FROM ( SELECT rank FROM t1('a NOT "" NOT def') ) ORDER BY 1;
+} {-1e-06}
+
+do_execsql_test 24.3 {
+  SELECT rank FROM ( SELECT rank FROM t1('a NOT � NOT def') ) ORDER BY 1;
+} {-1e-06}
+
+do_execsql_test 24.4 {
+  SELECT rank FROM ( SELECT rank FROM t1('a NOT "" NOT def') );
+} {-1e-06}
+
+#-------------------------------------------------------------------------
+reset_db
+fts5_aux_test_functions db
+
+do_execsql_test 25.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, detail='none', content='');
+  INSERT INTO t1(a) VALUES('a b c');
+}
+
+do_execsql_test 25.0 {
+  SELECT fts5_test_poslist(t1) FROM t1('b') ORDER BY rank;
+} {{}}
+
+finish_test
+
diff --git a/ext/fts5/test/fts5multi.test b/ext/fts5/test/fts5multi.test
new file mode 100644
index 0000000000000000000000000000000000000000..7878cede7e3b55a068247ab5dde7ebce86192ea6
--- /dev/null
+++ b/ext/fts5/test/fts5multi.test
@@ -0,0 +1,99 @@
+# 2014 September 13
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS5 module.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5multi
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+fts5_aux_test_functions db
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, b, c);
+  INSERT INTO t1 VALUES('gg bb bb'   ,'gg ff gg'   ,'ii ii');
+  INSERT INTO t1 VALUES('dd dd hh kk','jj'         ,'aa');
+  INSERT INTO t1 VALUES('kk gg ee'   ,'hh cc'      ,'hh jj aa cc');
+  INSERT INTO t1 VALUES('hh'         ,'bb jj cc'   ,'kk ii');
+  INSERT INTO t1 VALUES('kk dd kk ii','aa ee aa'   ,'ee');
+  INSERT INTO t1 VALUES('ee'         ,'ff gg kk aa','ee ff ee');
+  INSERT INTO t1 VALUES('ff jj'      ,'gg ee'      ,'kk ee gg kk');
+  INSERT INTO t1 VALUES('ff ee dd hh','kk ee'      ,'gg dd');
+  INSERT INTO t1 VALUES('bb'         ,'aa'         ,'bb aa');
+  INSERT INTO t1 VALUES('hh cc bb'   ,'ff bb'      ,'cc');
+  INSERT INTO t1 VALUES('jj'         ,'ff dd bb aa','dd dd ff ff');
+  INSERT INTO t1 VALUES('ff dd gg dd','gg aa bb ff','cc');
+  INSERT INTO t1 VALUES('ff aa cc jj','kk'         ,'ii dd');
+  INSERT INTO t1 VALUES('jj dd'      ,'cc'         ,'ii hh ee aa');
+  INSERT INTO t1 VALUES('ff ii hh'   ,'dd'         ,'gg');
+  INSERT INTO t1 VALUES('ff dd gg hh','hh'         ,'ff dd');
+  INSERT INTO t1 VALUES('cc cc'      ,'ff dd ff'   ,'bb');
+  INSERT INTO t1 VALUES('ii'         ,'bb ii'      ,'jj kk');
+  INSERT INTO t1 VALUES('ff hh'      ,'hh bb'      ,'bb dd ee');
+  INSERT INTO t1 VALUES('jj kk'      ,'jj'         ,'gg ff cc');
+  INSERT INTO t1 VALUES('dd kk'      ,'ii gg'      ,'dd');
+  INSERT INTO t1 VALUES('cc'         ,'aa ff'      ,'ii');
+  INSERT INTO t1 VALUES('bb ff bb ii','bb kk bb aa','hh ff ii dd');
+  INSERT INTO t1 VALUES('aa'         ,'ee bb jj jj','dd');
+  INSERT INTO t1 VALUES('kk dd cc'   ,'aa jj'      ,'ee aa ff');
+  INSERT INTO t1 VALUES('aa gg aa'   ,'jj'         ,'ii kk hh gg');
+  INSERT INTO t1 VALUES('ff hh aa'   ,'jj ii'      ,'hh dd bb jj');
+  INSERT INTO t1 VALUES('hh'         ,'aa gg kk'   ,'bb ee');
+  INSERT INTO t1 VALUES('bb'         ,'ee'         ,'gg');
+  INSERT INTO t1 VALUES('dd kk'      ,'kk bb aa'   ,'ee');
+}
+
+foreach {tn c1 e1 c2 e2} {
+  1     t1 aa     t1 bb
+  2     a  aa     b  bb
+  3     a  "aa OR bb OR cc"    b  "jj OR ii OR hh"
+  4     t1  "aa AND bb"       t1  "cc"
+  5     c   "kk"               b  "aa OR bb OR cc OR dd OR ee"
+} {
+  if {$c1=="t1"} {
+    set lhs "( $e1 )"
+  } else {
+    set lhs "$c1 : ( $e1 )"
+  }
+  if {$c2=="t1"} {
+    set rhs "( $e2 )"
+  } else {
+    set rhs "$c2 : ( $e2 )"
+  }
+
+  set q1 "t1 MATCH '($lhs) AND ($rhs)'"
+  set q2 "$c1 MATCH '$e1' AND $c2 MATCH '$e2'"
+
+  set ret [execsql "SELECT rowid FROM t1 WHERE $q1"]
+  set N [llength $ret]
+  do_execsql_test 1.$tn.1.($N) "SELECT rowid FROM t1 WHERE $q2" $ret
+
+  set ret [execsql "SELECT fts5_test_poslist(t1) FROM t1 WHERE $q1"]
+  do_execsql_test 1.$tn.2.($N) "
+    SELECT fts5_test_poslist(t1) FROM t1 WHERE $q2
+  " $ret
+}
+
+do_catchsql_test 2.1.1 {
+  SELECT rowid FROM t1 WHERE t1 MATCH '(NOT' AND t1 MATCH 'aa bb';
+} {1 {fts5: syntax error near "NOT"}}
+do_catchsql_test 2.1.2 {
+  SELECT rowid FROM t1 WHERE t1 MATCH 'aa bb' AND t1 MATCH '(NOT';
+} {1 {fts5: syntax error near "NOT"}}
+
+finish_test
+
diff --git a/ext/fts5/test/fts5multiclient.test b/ext/fts5/test/fts5multiclient.test
new file mode 100644
index 0000000000000000000000000000000000000000..c3716fc111f808c5d2d5b78132d8be9807469205
--- /dev/null
+++ b/ext/fts5/test/fts5multiclient.test
@@ -0,0 +1,47 @@
+# 2016 March 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+source $testdir/lock_common.tcl
+
+set testprefix fts5multiclient
+return_if_no_fts5
+
+foreach_detail_mode $testprefix {
+
+do_multiclient_test tn {
+
+  do_test 1.$tn.1 {
+    sql1 { CREATE VIRTUAL TABLE t1 USING fts5(x, detail=%DETAIL%) }
+    sql1 { INSERT INTO t1 VALUES('a b c') }
+    sql2 { SELECT rowid FROM t1('b') }
+  } {1}
+
+  do_test 1.$tn.2 {
+    sql2 { INSERT INTO t1 VALUES('a b c') }
+    sql1 { SELECT rowid FROM t1('b') }
+  } {1 2}
+
+  do_test 1.$tn.3 {
+    sql2 { INSERT INTO t1 VALUES('a b c') }
+    sql1 { SELECT rowid FROM t1('b') }
+  } {1 2 3}
+
+  do_test 1.$tn.4 {
+    sql2 { INSERT INTO t1 VALUES('a b c') }
+    sql1 { INSERT INTO t1 VALUES('a b c') }
+    sql3 { INSERT INTO t1(t1) VALUES('integrity-check') }
+  } {}
+
+};# do_multiclient_test
+};# foreach_detail_mode
+finish_test
diff --git a/ext/fts5/test/fts5near.test b/ext/fts5/test/fts5near.test
new file mode 100644
index 0000000000000000000000000000000000000000..318a1694882f7dd7b5184237a076299d65f6ee38
--- /dev/null
+++ b/ext/fts5/test/fts5near.test
@@ -0,0 +1,70 @@
+# 2014 Jan 08
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests focused on the NEAR operator.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5near
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+proc do_near_test {tn doc near res} {
+  uplevel [list do_execsql_test $tn "
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES('$doc');
+    SELECT count(*) FROM t1 WHERE t1 MATCH '$near';
+  " $res]
+}
+
+execsql { 
+  CREATE VIRTUAL TABLE t1 USING fts5(x, tokenize = "ascii tokenchars '.'") 
+}
+
+do_near_test 1.1 ". . a . . . b . ." { NEAR(a b, 5) } 1
+do_near_test 1.2 ". . a . . . b . ." { NEAR(a b, 4) } 1
+do_near_test 1.3 ". . a . . . b . ." { NEAR(a b, 3) } 1
+do_near_test 1.4 ". . a . . . b . ." { NEAR(a b, 2) } 0
+
+do_near_test 1.5 ". . a . . . b . ." { NEAR(b a, 5) } 1
+do_near_test 1.6 ". . a . . . b . ." { NEAR(b a, 4) } 1
+do_near_test 1.7 ". . a . . . b . ." { NEAR(b a, 3) } 1
+do_near_test 1.8 ". . a . . . b . ." { NEAR(b a, 2) } 0
+
+do_near_test 1.9  ". a b . . . c . ." { NEAR("a b" c, 3) } 1
+do_near_test 1.10 ". a b . . . c . ." { NEAR("a b" c, 2) } 0
+do_near_test 1.11 ". a b . . . c . ." { NEAR(c "a b", 3) } 1
+do_near_test 1.12 ". a b . . . c . ." { NEAR(c "a b", 2) } 0
+
+do_near_test 1.13 ". a b . . . c d ." { NEAR(a+b c+d, 3) } 1
+do_near_test 1.14 ". a b . . . c d ." { NEAR(a+b c+d, 2) } 0
+do_near_test 1.15 ". a b . . . c d ." { NEAR(c+d a+b, 3) } 1
+do_near_test 1.16 ". a b . . . c d ." { NEAR(c+d a+b, 2) } 0
+
+do_near_test 1.17 ". a b . . . c d ." { NEAR(a b c d, 5) } 1
+do_near_test 1.18 ". a b . . . c d ." { NEAR(a b c d, 4) } 0
+do_near_test 1.19 ". a b . . . c d ." { NEAR(a+b c d, 4) } 1
+
+do_near_test 1.20 "a b c d e f g h i" { NEAR(b+c a+b+c+d i, 5) } 1
+do_near_test 1.21 "a b c d e f g h i" { NEAR(b+c a+b+c+d i, 4) } 0
+
+do_near_test 1.22 "a b c d e f g h i" { NEAR(a+b+c+d i b+c, 5) } 1
+do_near_test 1.23 "a b c d e f g h i" { NEAR(a+b+c+d i b+c, 4) } 0
+
+do_near_test 1.24 "a b c d e f g h i" { NEAR(i a+b+c+d b+c, 5) } 1
+do_near_test 1.25 "a b c d e f g h i" { NEAR(i a+b+c+d b+c, 4) } 0
+
+
+finish_test
diff --git a/ext/fts5/test/fts5onepass.test b/ext/fts5/test/fts5onepass.test
new file mode 100644
index 0000000000000000000000000000000000000000..01021ed348183e7442b2605b2a27f5f1e6999c91
--- /dev/null
+++ b/ext/fts5/test/fts5onepass.test
@@ -0,0 +1,180 @@
+# 2015 Sep 27
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5onepass
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE ft USING fts5(content);
+  INSERT INTO ft(rowid, content) VALUES(1, '1 2 3');
+  INSERT INTO ft(rowid, content) VALUES(2, '4 5 6');
+  INSERT INTO ft(rowid, content) VALUES(3, '7 8 9');
+}
+
+#-------------------------------------------------------------------------
+# Check that UPDATE and DELETE statements that feature "WHERE rowid=?" or 
+# or "WHERE rowid=?" clauses do not use statement journals. But that other
+# DELETE and UPDATE statements do.
+#
+# Note: "MATCH ? AND rowid=?" does use a statement journal.
+#
+foreach {tn sql uses} {
+  1.1 { DELETE FROM ft } 1
+  1.2 { DELETE FROM ft WHERE rowid=? } 0
+  1.3 { DELETE FROM ft WHERE rowid=? } 0
+  1.4 { DELETE FROM ft WHERE ft MATCH '1' } 1
+  1.5 { DELETE FROM ft WHERE ft MATCH '1' AND rowid=? } 1
+  1.6 { DELETE FROM ft WHERE ft MATCH '1' AND rowid=? } 1
+
+  2.1 { UPDATE ft SET content='a b c' } 1
+  2.2 { UPDATE ft SET content='a b c' WHERE rowid=? } 0
+  2.3 { UPDATE ft SET content='a b c' WHERE rowid=? } 0
+  2.4 { UPDATE ft SET content='a b c' WHERE ft MATCH '1' } 1
+  2.5 { UPDATE ft SET content='a b c' WHERE ft MATCH '1' AND rowid=? } 1
+  2.6 { UPDATE ft SET content='a b c' WHERE ft MATCH '1' AND rowid=? } 1
+} {
+  do_test 1.$tn { sql_uses_stmt db $sql } $uses
+}
+
+#-------------------------------------------------------------------------
+# Check that putting a "DELETE/UPDATE ... WHERE rowid=?" statement in a
+# trigger program does not prevent the VM from using a statement 
+# transaction. Even if the calling statement cannot hit a constraint.
+#
+do_execsql_test 2.0 {
+  CREATE TABLE t1(x);
+
+  CREATE TRIGGER t1_ai AFTER INSERT ON t1 BEGIN
+    DELETE FROM ft WHERE rowid=new.x;
+  END;
+
+  CREATE TRIGGER t1_ad AFTER DELETE ON t1 BEGIN
+    UPDATE ft SET content = 'a b c' WHERE rowid=old.x;
+  END;
+
+  CREATE TRIGGER t1_bu BEFORE UPDATE ON t1 BEGIN
+    DELETE FROM ft WHERE rowid=old.x;
+  END;
+}
+
+foreach {tn sql uses} {
+  1 { INSERT INTO t1 VALUES(1)      } 1
+  2 { DELETE FROM t1 WHERE x=4      } 1
+  3 { UPDATE t1 SET x=10 WHERE x=11 } 1
+} {
+  do_test 2.$tn { sql_uses_stmt db $sql } $uses
+}
+
+#-------------------------------------------------------------------------
+# Test that an "UPDATE ... WHERE rowid=?" works and does not corrupt the
+# index when it strikes a constraint. Both inside and outside a 
+# transaction.
+#
+foreach {tn tcl1 tcl2}  {
+  1 {} {}
+
+  2 {
+    execsql BEGIN
+  } {
+    if {[sqlite3_get_autocommit db]==1} { error "transaction rolled back!" }
+    execsql COMMIT
+  }
+} {
+
+  do_execsql_test 3.$tn.0 {
+    DROP TABLE IF EXISTS ft2;
+    CREATE VIRTUAL TABLE ft2 USING fts5(content);
+    INSERT INTO ft2(rowid, content) VALUES(1, 'a b c');
+    INSERT INTO ft2(rowid, content) VALUES(2, 'a b d');
+    INSERT INTO ft2(rowid, content) VALUES(3, 'a b e');
+  }
+
+  eval $tcl1
+  foreach {tn2 sql content} {
+    1 { UPDATE ft2 SET rowid=2 WHERE rowid=1 }
+      { 1 {a b c} 2 {a b d} 3 {a b e} }
+
+    2 { 
+      INSERT INTO ft2(rowid, content) VALUES(4, 'a b f');
+      UPDATE ft2 SET rowid=5 WHERE rowid=4;
+      UPDATE ft2 SET rowid=3 WHERE rowid=5;
+    } { 1 {a b c} 2 {a b d} 3 {a b e} 5 {a b f} }
+
+    3 {
+      UPDATE ft2 SET rowid=3 WHERE rowid=4;           -- matches 0 rows
+      UPDATE ft2 SET rowid=2 WHERE rowid=3;
+    } { 1 {a b c} 2 {a b d} 3 {a b e} 5 {a b f} }
+
+    4 {
+      INSERT INTO ft2(rowid, content) VALUES(4, 'a b g');
+      UPDATE ft2 SET rowid=-1 WHERE rowid=4;
+      UPDATE ft2 SET rowid=3 WHERE rowid=-1;
+    } {-1 {a b g} 1 {a b c} 2 {a b d} 3 {a b e} 5 {a b f} }
+
+    5 {
+      DELETE FROM ft2 WHERE rowid=451;
+      DELETE FROM ft2 WHERE rowid=-1;
+      UPDATE ft2 SET rowid = 2 WHERE rowid = 1;
+    } {1 {a b c} 2 {a b d} 3 {a b e} 5 {a b f} }
+  } {
+    do_catchsql_test 3.$tn.$tn2.a $sql {1 {constraint failed}}
+    do_execsql_test  3.$tn.$tn2.b { SELECT rowid, content FROM ft2 } $content
+
+    do_execsql_test  3.$tn.$tn2.c { 
+      INSERT INTO ft2(ft2) VALUES('integrity-check');
+    }
+  }
+  eval $tcl2
+}
+
+#-------------------------------------------------------------------------
+# Check that DELETE and UPDATE operations can be done without flushing
+# the in-memory hash table to disk.
+#
+reset_db
+do_execsql_test 4.1.1 {
+  CREATE VIRTUAL TABLE ttt USING fts5(x);
+  BEGIN;
+    INSERT INTO ttt(rowid, x) VALUES(1, 'a b c');
+    INSERT INTO ttt(rowid, x) VALUES(2, 'a b c');
+    INSERT INTO ttt(rowid, x) VALUES(3, 'a b c');
+  COMMIT
+}
+do_test 4.1.2 { fts5_level_segs ttt } {1}
+
+do_execsql_test 4.2.1 {
+  BEGIN;
+    DELETE FROM ttt WHERE rowid=1;
+    DELETE FROM ttt WHERE rowid=3;
+    INSERT INTO ttt(rowid, x) VALUES(4, 'd e f');
+    INSERT INTO ttt(rowid, x) VALUES(5, 'd e f');
+  COMMIT;
+} {}
+do_test 4.2.2 { fts5_level_segs ttt } {2}
+
+
+do_execsql_test 4.3.1 {
+  BEGIN;
+    UPDATE ttt SET x = 'd e f' WHERE rowid = 2;
+    UPDATE ttt SET x = 'A B C' WHERE rowid = 4;
+    INSERT INTO ttt(rowid, x) VALUES(6, 'd e f');
+  COMMIT;
+} {}
+do_test 4.2.2 { fts5_level_segs ttt } {3}
+
+finish_test
diff --git a/ext/fts5/test/fts5optimize.test b/ext/fts5/test/fts5optimize.test
new file mode 100644
index 0000000000000000000000000000000000000000..610bf439c9707333b57f8ede8e83e6428eb8c182
--- /dev/null
+++ b/ext/fts5/test/fts5optimize.test
@@ -0,0 +1,108 @@
+# 2014 Dec 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5optimize
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+#
+# 1.* - Warm body tests for index optimization using ('optimize')
+#
+# 2.* - Warm body tests for index optimization using ('merge', -1)
+#
+
+proc rnddoc {nWord} {
+  set vocab {a b c d e f g h i j k l m n o p q r s t u v w x y z}
+  set nVocab [llength $vocab]
+  set ret [list]
+  for {set i 0} {$i < $nWord} {incr i} {
+    lappend ret [lindex $vocab [expr {int(rand() * $nVocab)}]]
+  }
+  return $ret
+}
+
+foreach {tn nStep} {
+  1 2
+  2 10
+  3 50
+  4 500
+} {
+  reset_db
+  db func rnddoc rnddoc
+  do_execsql_test 1.$tn.1 {
+    CREATE VIRTUAL TABLE t1 USING fts5(x, y);
+  }
+  do_test 1.$tn.2 {
+    for {set i 0} {$i < $nStep} {incr i} {
+      execsql { INSERT INTO t1 VALUES( rnddoc(5), rnddoc(5) ) }
+    }
+  } {}
+
+  do_execsql_test 1.$tn.3 {
+    INSERT INTO t1(t1) VALUES('integrity-check');
+  }
+
+  do_execsql_test 1.$tn.4 {
+    INSERT INTO t1(t1) VALUES('optimize');
+  }
+
+  do_execsql_test 1.$tn.5 {
+    INSERT INTO t1(t1) VALUES('integrity-check');
+  }
+
+  do_test 1.$tn.6 { fts5_segcount t1 } 1
+}
+
+foreach {tn nStep} {
+  1 2
+  2 10
+  3 50
+  4 500
+} {
+  reset_db
+  db func rnddoc rnddoc
+  do_execsql_test 1.$tn.1 {
+    CREATE VIRTUAL TABLE t1 USING fts5(x, y);
+  }
+  do_test 2.$tn.2 {
+    for {set i 0} {$i < $nStep} {incr i} {
+      execsql { INSERT INTO t1 VALUES( rnddoc(5), rnddoc(5) ) }
+    }
+  } {}
+
+  do_execsql_test 2.$tn.3 {
+    INSERT INTO t1(t1) VALUES('integrity-check');
+  }
+
+  do_test 2.$tn.4 {
+    execsql { INSERT INTO t1(t1, rank) VALUES('merge', -1) }
+    while 1 {
+      set c [db total_changes]
+      execsql { INSERT INTO t1(t1, rank) VALUES('merge', 1) }
+      set c [expr [db total_changes]-$c]
+      if {$c<2} break
+    }
+  } {}
+
+  do_execsql_test 2.$tn.5 {
+    INSERT INTO t1(t1) VALUES('integrity-check');
+  }
+
+  do_test 2.$tn.6 { fts5_segcount t1 } 1
+}
+finish_test
diff --git a/ext/fts5/test/fts5optimize2.test b/ext/fts5/test/fts5optimize2.test
new file mode 100644
index 0000000000000000000000000000000000000000..57f4e96b99be03409436fda43c85da483649e7f4
--- /dev/null
+++ b/ext/fts5/test/fts5optimize2.test
@@ -0,0 +1,45 @@
+# 2014 Dec 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# TESTRUNNER: superslow
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5optimize2
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+set nLoop 2500
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x);
+  INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
+}
+
+do_test 1.1 {
+  for {set ii 0} {$ii < $nLoop} {incr ii} {
+    execsql {
+      INSERT INTO t1 VALUES('abc def ghi');
+      INSERT INTO t1 VALUES('jkl mno pqr');
+      INSERT INTO t1(t1) VALUES('optimize');
+    }
+  }
+} {}
+
+do_execsql_test 1.2 {
+  SELECT count(*) FROM t1('mno')
+} $nLoop
+
+finish_test
diff --git a/ext/fts5/test/fts5optimize3.test b/ext/fts5/test/fts5optimize3.test
new file mode 100644
index 0000000000000000000000000000000000000000..79e62f9f22ba2f598d1ad76b23157badfa9ffce0
--- /dev/null
+++ b/ext/fts5/test/fts5optimize3.test
@@ -0,0 +1,45 @@
+# 2023 Aug 27
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# TESTRUNNER: superslow
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5optimize2
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+set nLoop 2500
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t2 USING fts5(x);
+  INSERT INTO t2(t2, rank) VALUES('pgsz', 32);
+}
+
+do_test 1.1 {
+  for {set ii 0} {$ii < $nLoop} {incr ii} {
+    execsql {
+      INSERT INTO t2 VALUES('abc def ghi');
+      INSERT INTO t2 VALUES('jkl mno pqr');
+      INSERT INTO t2(t2, rank) VALUES('merge', -1);
+    }
+  }
+} {}
+
+do_execsql_test 1.2 {
+  SELECT count(*) FROM t2('mno')
+} $nLoop
+
+finish_test
diff --git a/ext/fts5/test/fts5origintext.test b/ext/fts5/test/fts5origintext.test
new file mode 100644
index 0000000000000000000000000000000000000000..be77cbfca5b915a4d2efa7e0e55c1e864fd70a33
--- /dev/null
+++ b/ext/fts5/test/fts5origintext.test
@@ -0,0 +1,357 @@
+# 2014 Jan 08
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests focused on phrase queries.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5origintext
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+foreach_detail_mode $testprefix {
+foreach {tn insttoken} {
+  1 0
+  2 1
+} {
+reset_db
+
+sqlite3_fts5_register_origintext db
+do_execsql_test $tn.1.0 {
+  CREATE VIRTUAL TABLE ft USING fts5(
+      x, tokenize="origintext unicode61", detail=%DETAIL%
+  );
+  INSERT INTO ft(ft, rank) VALUES('insttoken', $insttoken);
+  CREATE VIRTUAL TABLE vocab USING fts5vocab(ft, instance);
+}
+
+do_execsql_test $tn.1.1 {
+  INSERT INTO ft VALUES('Hello world');
+}
+
+do_execsql_test $tn.1.2 {
+  INSERT INTO ft(ft) VALUES('integrity-check');
+}
+
+proc b {x} { string map [list "\0" "."] $x }
+db func b b
+
+do_execsql_test $tn.1.3 {
+  select b(term) from vocab;
+} {
+  hello.Hello
+  world
+}
+
+do_execsql_test $tn.1.4 {
+  SELECT rowid FROM ft('Hello');
+} {1}
+
+#-------------------------------------------------------------------------
+reset_db
+
+# Return a random integer between 0 and n-1.
+#
+proc random {n} {
+  expr {abs(int(rand()*$n))}
+}
+
+proc select_one {list} {
+  set n [llength $list]
+  lindex $list [random $n]
+}
+
+proc term {} {
+  set first_letter {
+    a b c d e f g h i j k l m n o p q r s t u v w x y z
+    A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
+  }
+
+  set term [select_one $first_letter]
+  append term [random 100]
+}
+
+proc document {} {
+  set nTerm [expr [random 5] + 5]
+  set doc ""
+  for {set ii 0} {$ii < $nTerm} {incr ii} {
+    lappend doc [term]
+  }
+  set doc
+}
+db func document document
+
+sqlite3_fts5_register_origintext db
+do_execsql_test $tn.2.0 {
+  CREATE VIRTUAL TABLE ft USING fts5(
+      x, tokenize="origintext unicode61", detail=%DETAIL%
+  );
+  INSERT INTO ft(ft, rank) VALUES('insttoken', $insttoken);
+  INSERT INTO ft(ft, rank) VALUES('pgsz', 128);
+  CREATE VIRTUAL TABLE vocab USING fts5vocab(ft, instance);
+}
+
+do_test $tn.2.1 {
+  for {set ii 0} {$ii < 500} {incr ii} {
+    execsql { INSERT INTO ft VALUES( document() ) }
+  }
+} {}
+
+do_execsql_test $tn.2.2 {
+  INSERT INTO ft(ft) VALUES('integrity-check');
+}
+
+do_execsql_test $tn.2.3 {
+  INSERT INTO ft(ft, rank) VALUES('merge', 16);
+}
+
+do_execsql_test $tn.2.4 {
+  INSERT INTO ft(ft) VALUES('integrity-check');
+}
+
+do_execsql_test $tn.2.5 {
+  INSERT INTO ft(ft) VALUES('optimize');
+}
+
+#-------------------------------------------------------------------------
+reset_db
+
+sqlite3_fts5_register_origintext db
+do_execsql_test $tn.3.0 {
+  CREATE VIRTUAL TABLE ft USING fts5(
+      x, tokenize="origintext unicode61", detail=%DETAIL%
+  );
+  INSERT INTO ft(ft, rank) VALUES('insttoken', $insttoken);
+  CREATE VIRTUAL TABLE vocab USING fts5vocab(ft, instance);
+
+  INSERT INTO ft(rowid, x) VALUES(1, 'hello');
+  INSERT INTO ft(rowid, x) VALUES(2, 'Hello');
+  INSERT INTO ft(rowid, x) VALUES(3, 'HELLO');
+}
+
+#proc b {x} { string map [list "\0" "."] $x }
+#db func b b
+#execsql_pp { SELECT b(term) FROM vocab }
+
+do_execsql_test $tn.3.1.1 { SELECT rowid FROM ft('hello') } 1
+do_execsql_test $tn.3.1.2 { SELECT rowid FROM ft('Hello') } 2
+do_execsql_test $tn.3.1.3 { SELECT rowid FROM ft('HELLO') } 3
+
+do_execsql_test $tn.3.2 {
+  CREATE VIRTUAL TABLE ft2 USING fts5(x, 
+      tokenize="origintext unicode61", 
+      tokendata=1,
+      detail=%DETAIL%
+  );
+  INSERT INTO ft2(ft2, rank) VALUES('insttoken', $insttoken);
+  CREATE VIRTUAL TABLE vocab2 USING fts5vocab(ft2, instance);
+
+  INSERT INTO ft2(rowid, x) VALUES(1, 'hello');
+  INSERT INTO ft2(rowid, x) VALUES(2, 'Hello');
+  INSERT INTO ft2(rowid, x) VALUES(3, 'HELLO');
+
+  INSERT INTO ft2(rowid, x) VALUES(10, 'helloooo');
+}
+
+#proc b {x} { string map [list "\0" "."] $x }
+#db func b b
+#execsql_pp { SELECT b(term) FROM vocab }
+
+do_execsql_test $tn.3.3.1 { SELECT rowid FROM ft2('hello') } {1 2 3}
+do_execsql_test $tn.3.3.2 { SELECT rowid FROM ft2('Hello') } {1 2 3}
+do_execsql_test $tn.3.3.3 { SELECT rowid FROM ft2('HELLO') } {1 2 3}
+
+do_execsql_test $tn.3.3.4 { SELECT rowid FROM ft2('hello*') } {1 2 3 10}
+
+do_execsql_test $tn.3.3.5.1 { SELECT rowid FROM ft2('HELLO') ORDER BY rowid DESC} {
+  3 2 1
+}
+do_execsql_test $tn.3.3.5.2 { SELECT rowid FROM ft2('HELLO') ORDER BY +rowid DESC} {
+  3 2 1
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+sqlite3_fts5_register_origintext db
+proc querytoken {cmd iPhrase iToken} { 
+  set txt [$cmd xQueryToken $iPhrase $iToken]
+  string map [list "\0" "."] $txt
+}
+sqlite3_fts5_create_function db querytoken querytoken
+
+do_execsql_test $tn.4.0 {
+  CREATE VIRTUAL TABLE ft USING fts5(
+      x, tokenize='origintext unicode61', tokendata=1, detail=%DETAIL%
+  );
+  INSERT INTO ft(ft, rank) VALUES('insttoken', $insttoken);
+  INSERT INTO ft VALUES('one two three four');
+}
+
+do_execsql_test $tn.4.1 {
+  SELECT rowid, querytoken(ft, 0, 0) FROM ft('TwO')
+} {1 two.TwO}
+do_execsql_test $tn.4.2 {
+  SELECT rowid, querytoken(ft, 0, 0) FROM ft('one TWO ThreE')
+} {1 one}
+do_execsql_test $tn.4.3 {
+  SELECT rowid, querytoken(ft, 1, 0) FROM ft('one TWO ThreE')
+} {1 two.TWO}
+
+if {"%DETAIL%"=="full"} {
+  # Phrase queries are only supported for detail=full.
+  #
+  do_execsql_test $tn.4.4 {
+    SELECT rowid, querytoken(ft, 0, 2) FROM ft('"one TWO ThreE"')
+  } {1 three.ThreE}
+  do_catchsql_test $tn.4.5 {
+    SELECT rowid, querytoken(ft, 0, 3) FROM ft('"one TWO ThreE"')
+  } {1 SQLITE_RANGE}
+  do_catchsql_test $tn.4.6 {
+    SELECT rowid, querytoken(ft, 1, 0) FROM ft('"one TWO ThreE"')
+  } {1 SQLITE_RANGE}
+  do_catchsql_test $tn.4.7 {
+    SELECT rowid, querytoken(ft, -1, 0) FROM ft('"one TWO ThreE"')
+  } {1 SQLITE_RANGE}
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+sqlite3_fts5_register_origintext db
+proc insttoken {cmd iIdx iToken} { 
+  set txt [$cmd xInstToken $iIdx $iToken]
+  string map [list "\0" "."] $txt
+}
+sqlite3_fts5_create_function db insttoken insttoken
+fts5_aux_test_functions db
+
+do_execsql_test $tn.5.0 {
+  CREATE VIRTUAL TABLE ft USING fts5(
+      x, tokenize='origintext unicode61', tokendata=1, detail=%DETAIL%
+  );
+  INSERT INTO ft(ft, rank) VALUES('insttoken', $insttoken);
+  INSERT INTO ft VALUES('one ONE One oNe oNE one');
+}
+
+do_execsql_test $tn.5.1 {
+  SELECT insttoken(ft, 0, 0), 
+         insttoken(ft, 1, 0),
+         insttoken(ft, 2, 0),
+         insttoken(ft, 3, 0),
+         insttoken(ft, 4, 0),
+         insttoken(ft, 5, 0)
+  FROM ft('one');
+} {
+  one one.ONE one.One one.oNe one.oNE one
+}
+
+do_execsql_test $tn.5.2 {
+  SELECT insttoken(ft, 0, 0), 
+         insttoken(ft, 1, 0),
+         insttoken(ft, 2, 0),
+         insttoken(ft, 3, 0),
+         insttoken(ft, 4, 0),
+         insttoken(ft, 5, 0)
+  FROM ft('on*');
+} {
+  one one.ONE one.One one.oNe one.oNE one
+}
+
+do_execsql_test $tn.5.3 {
+  SELECT insttoken(ft, 0, 0), 
+         insttoken(ft, 1, 0),
+         insttoken(ft, 2, 0),
+         insttoken(ft, 3, 0),
+         insttoken(ft, 4, 0),
+         insttoken(ft, 5, 0)
+  FROM ft(fts5_insttoken('on*'));
+} {
+  one one.ONE one.One one.oNe one.oNE one
+}
+
+do_execsql_test $tn.5.4 {
+  SELECT insttoken(ft, 1, 0) FROM ft('one');
+} {
+  one.ONE
+}
+
+do_execsql_test $tn.5.5 {
+  SELECT fts5_test_poslist(ft) FROM ft('one');
+} {
+  {0.0.0 0.0.1 0.0.2 0.0.3 0.0.4 0.0.5}
+}
+
+#-------------------------------------------------------------------------
+# Test the xInstToken() API with:
+#
+#   * a non tokendata=1 table.
+#   * prefix queries.
+#
+reset_db
+sqlite3_fts5_register_origintext db
+do_execsql_test $tn.6.0 {
+  CREATE VIRTUAL TABLE ft USING fts5( 
+      x, y, tokenize='origintext unicode61', detail=%DETAIL%, tokendata=0
+  );
+  INSERT INTO ft(ft, rank) VALUES('insttoken', $insttoken);
+
+  INSERT INTO ft VALUES('One Two', 'Three two');
+  INSERT INTO ft VALUES('three Three', 'one One');
+}
+proc tokens {cmd} { 
+  set ret [list]
+  for {set iTok 0} {$iTok < [$cmd xInstCount]} {incr iTok} {
+    set txt [$cmd xInstToken $iTok 0]
+    set txt [string map [list "\0" "."] $txt]
+    lappend ret $txt
+  }
+  set ret
+}
+sqlite3_fts5_create_function db tokens tokens
+
+do_execsql_test $tn.6.1 {
+  SELECT rowid, tokens(ft) FROM ft('One');
+} {1 one.One 2 one.One}
+
+do_execsql_test $tn.6.2 {
+  SELECT rowid, tokens(ft) FROM ft('on*');
+} {1 one.One 2 {one one.One}}
+
+do_execsql_test $tn.6.3 {
+  SELECT rowid, tokens(ft) FROM ft('Three*');
+} {1 three.Three 2 three.Three}
+
+fts5_aux_test_functions db
+do_catchsql_test $tn.6.4 {
+  SELECT fts5_test_insttoken(ft, -1, 0) FROM ft('one');
+} {1 SQLITE_RANGE}
+
+do_catchsql_test $tn.6.5 {
+  SELECT fts5_test_insttoken(ft, 1, 0) FROM ft('one');
+} {1 SQLITE_RANGE}
+
+do_catchsql_test $tn.6.6 {
+  CREATE VIRTUAL TABLE ft2 USING fts5(x, tokendata=2);
+} {1 {malformed tokendata=... directive}}
+do_catchsql_test $tn.6.7 {
+  CREATE VIRTUAL TABLE ft2 USING fts5(x, content='', tokendata=11);
+} {1 {malformed tokendata=... directive}}
+
+}
+}
+
+finish_test
+
diff --git a/ext/fts5/test/fts5origintext2.test b/ext/fts5/test/fts5origintext2.test
new file mode 100644
index 0000000000000000000000000000000000000000..a8c7172344cbbf1207f670b7572a384427d6290a
--- /dev/null
+++ b/ext/fts5/test/fts5origintext2.test
@@ -0,0 +1,146 @@
+# 2014 Jan 08
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests focused on phrase queries.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5origintext2
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+sqlite3_fts5_register_origintext db
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE ft USING fts5(
+      x, tokenize="origintext unicode61", tokendata=1
+  );
+}
+
+do_execsql_test 1.1 {
+  BEGIN;
+  INSERT INTO ft VALUES('Hello');
+  INSERT INTO ft VALUES('hello');
+  INSERT INTO ft VALUES('HELLO');
+  INSERT INTO ft VALUES('today');
+  INSERT INTO ft VALUES('today');
+  INSERT INTO ft VALUES('today');
+  INSERT INTO ft VALUES('World');
+  INSERT INTO ft VALUES('world');
+  INSERT INTO ft VALUES('WORLD');
+  COMMIT;
+}
+
+do_execsql_test 1.2 { SELECT rowid FROM ft('hello'); } {1 2 3}
+do_execsql_test 1.3 { SELECT rowid FROM ft('today'); } {4 5 6}
+do_execsql_test 1.4 { SELECT rowid FROM ft('world'); } {7 8 9}
+
+do_execsql_test 1.5 {
+  SELECT count(*) FROM ft_data
+} 3
+
+do_execsql_test 1.6 {
+  DELETE FROM ft;
+  INSERT INTO ft(ft, rank) VALUES('pgsz', 64);
+  BEGIN;
+    WITH s(i) AS (
+      SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<100
+    )
+    INSERT INTO ft SELECT 'Hello Hello Hello Hello Hello Hello Hello' FROM s;
+    INSERT INTO ft VALUES ('hELLO hELLO hELLO');
+    INSERT INTO ft VALUES('today today today today today today today');
+    INSERT INTO ft VALUES('today today today today today today today');
+    INSERT INTO ft VALUES('today today today today today today today');
+    INSERT INTO ft VALUES('today today today today today today today');
+    INSERT INTO ft VALUES('today today today today today today today');
+    INSERT INTO ft VALUES('today today today today today today today');
+    INSERT INTO ft VALUES('World World World World World World World');
+    INSERT INTO ft VALUES('world world world world world world world');
+    INSERT INTO ft VALUES('WORLD WORLD WORLD WORLD WORLD WORLD WORLD');
+    INSERT INTO ft VALUES('World World World World World World World');
+    INSERT INTO ft VALUES('world world world world world world world');
+    INSERT INTO ft VALUES('WORLD WORLD WORLD WORLD WORLD WORLD WORLD');
+  COMMIT;
+}
+
+do_execsql_test 1.7 {
+  SELECT count(*) FROM ft_data;
+} 23
+
+do_execsql_test 1.8 { SELECT rowid FROM ft('hello') WHERE rowid>100; } {101}
+
+do_execsql_test 1.9 {
+  DELETE FROM ft;
+  INSERT INTO ft(ft) VALUES('optimize');
+  SELECT count(*) FROM ft_data;
+} {2}
+do_execsql_test 1.10 {
+  BEGIN;
+    INSERT INTO ft VALUES('Hello');
+    INSERT INTO ft VALUES('hello');
+    INSERT INTO ft VALUES('HELLO');
+    INSERT INTO ft VALUES('today');
+    INSERT INTO ft VALUES('today');
+    INSERT INTO ft VALUES('today');
+    INSERT INTO ft VALUES('World');
+    INSERT INTO ft VALUES('world');
+    INSERT INTO ft VALUES('WORLD');
+}
+
+do_execsql_test 1.11 { SELECT rowid FROM ft('hello'); } {1 2 3}
+do_execsql_test 1.12 { SELECT rowid FROM ft('today'); } {4 5 6}
+do_execsql_test 1.13 { SELECT rowid FROM ft('world'); } {7 8 9}
+do_execsql_test 1.14 { SELECT rowid FROM ft('hello') ORDER BY rank; } {1 2 3}
+
+#------------------------------------------------------------------------
+reset_db
+sqlite3_fts5_register_origintext db
+proc tokens {cmd} { 
+  set ret [list]
+  for {set iTok 0} {$iTok < [$cmd xInstCount]} {incr iTok} {
+    set txt [$cmd xInstToken $iTok 0]
+    set txt [string map [list "\0" "."] $txt]
+    lappend ret $txt
+  }
+  set ret
+}
+sqlite3_fts5_create_function db tokens tokens
+
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE x1 USING fts5(
+    v, tokenize="origintext unicode61", tokendata=1, detail=none
+  );
+
+  INSERT INTO x1 VALUES('xxx Xxx XXX yyy YYY yyy');
+  INSERT INTO x1 VALUES('xxx yyy xxx yyy yyy yyy');
+}
+
+do_execsql_test 2.1 {
+  SELECT tokens(x1) FROM x1('xxx');
+} {
+  {xxx xxx.Xxx xxx.XXX} {xxx xxx}
+}
+
+do_execsql_test 2.2 {
+  UPDATE x1_content SET c0 = 'xxx xxX xxx yyy yyy yyy' WHERE id=1;
+}
+
+do_execsql_test 2.3 {
+  SELECT tokens(x1) FROM x1('xxx');
+} {
+  {xxx {} xxx} {xxx xxx}
+}
+
+finish_test
+
diff --git a/ext/fts5/test/fts5origintext3.test b/ext/fts5/test/fts5origintext3.test
new file mode 100644
index 0000000000000000000000000000000000000000..351ab1f6172fec67c0aa6a6c3ca0cf26669389a1
--- /dev/null
+++ b/ext/fts5/test/fts5origintext3.test
@@ -0,0 +1,141 @@
+# 2023 November 22
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests focused on phrase queries.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5origintext3
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+foreach_detail_mode $testprefix {
+  foreach {tn insttoken} {
+    1 0
+    2 1
+  } {
+
+  reset_db
+
+  sqlite3_fts5_register_origintext db
+  fts5_aux_test_functions db
+  proc insttoken {cmd iIdx iToken} { 
+    set txt [$cmd xInstToken $iIdx $iToken]
+    string map [list "\0" "."] $txt
+  }
+  sqlite3_fts5_create_function db insttoken insttoken
+  
+  do_execsql_test $tn.1.0 {
+    CREATE VIRTUAL TABLE ft USING fts5(
+        x, tokenize="origintext unicode61", tokendata=1, detail=%DETAIL%
+    );
+  }
+
+  do_execsql_test $tn.1.0.1 {
+    INSERT INTO ft(ft, rank) VALUES('insttoken', 1);
+  }
+  
+  do_execsql_test $tn.1.1 {
+    INSERT INTO ft VALUES('Hello world HELLO WORLD hello');
+  }
+  
+  do_execsql_test $tn.1.2 {
+    SELECT fts5_test_poslist(ft) FROM ft('hello');
+  } {{0.0.0 0.0.2 0.0.4}}
+
+  do_execsql_test $tn.1.3 {
+    SELECT 
+      insttoken(ft, 0, 0),
+      insttoken(ft, 1, 0),
+      insttoken(ft, 2, 0)
+    FROM ft('hello');
+  } {hello.Hello hello.HELLO hello}
+
+  do_execsql_test $tn.1.3.1 {
+    SELECT 
+      insttoken(ft, 0, 0),
+      insttoken(ft, 1, 0),
+      insttoken(ft, 2, 0)
+    FROM ft('hel*');
+  } {hello.Hello hello.HELLO hello}
+
+  do_execsql_test $tn.1.4 {
+    SELECT 
+      insttoken(ft, 0, 0),
+      insttoken(ft, 1, 0),
+      insttoken(ft, 2, 0)
+    FROM ft('hello') ORDER BY rank;
+  } {hello.Hello hello.HELLO hello}
+
+  do_execsql_test $tn.1.5 {
+    CREATE VIRTUAL TABLE ft2 USING fts5(
+        x, tokenize="origintext unicode61", tokendata=1, detail=%DETAIL%
+    );
+    INSERT INTO ft2(rowid, x) VALUES(1, 'ONE one two three ONE');
+    INSERT INTO ft2(rowid, x) VALUES(2, 'TWO one two three TWO');
+    INSERT INTO ft2(rowid, x) VALUES(3, 'THREE one two three THREE');
+  }
+
+  do_execsql_test $tn.1.6 {
+    SELECT insttoken(ft2, 0, 0), rowid FROM ft2('three') ORDER BY rank;
+  } {three.THREE 3 three 1 three 2}
+
+  do_execsql_test $tn.1.7 {
+    INSERT INTO ft2(rowid, x) VALUES(10, 'aaa bbb BBB');
+    INSERT INTO ft2(rowid, x) VALUES(12, 'bbb bbb bbb');
+    INSERT INTO ft2(rowid, x) VALUES(13, 'bbb bbb bbb');
+    INSERT INTO ft2(rowid, x) VALUES(14, 'bbb BBB bbb');
+    INSERT INTO ft2(rowid, x) VALUES(15, 'bbb bbb bbb');
+    INSERT INTO ft2(rowid, x) VALUES(16, 'bbb bbb bbb');
+    INSERT INTO ft2(rowid, x) VALUES(17, 'bbb bbb bbb');
+    INSERT INTO ft2(rowid, x) VALUES(18, 'bbb bbb bbb');
+    INSERT INTO ft2(rowid, x) VALUES(19, 'bbb bbb bbb');
+    INSERT INTO ft2(rowid, x) VALUES(20, 'bbb bbb bbb');
+    INSERT INTO ft2(rowid, x) VALUES(21, 'bbb bbb bbb');
+    INSERT INTO ft2(rowid, x) VALUES(22, 'bbb bbb bbb');
+    INSERT INTO ft2(rowid, x) VALUES(23, 'bbb bbb bbb');
+    INSERT INTO ft2(rowid, x) VALUES(24, 'aaa bbb BBB');
+  }
+
+  do_execsql_test $tn.1.8 { SELECT rowid FROM ft2('aaa AND bbb'); } {10 24}
+  do_execsql_test $tn.1.9 { SELECT rowid FROM ft2('bbb AND aaa'); } {10 24}
+
+  do_execsql_test $tn.2.0 {
+    CREATE VIRTUAL TABLE ft3 USING fts5(
+        x, tokenize="origintext unicode61", tokendata=1, detail=%DETAIL%,
+        prefix=2
+    );
+  }
+  do_execsql_test $tn.2.1 {
+    INSERT INTO ft3(rowid, x) VALUES(1, 'one');
+    INSERT INTO ft3(rowid, x) VALUES(2, 'ONE');
+    INSERT INTO ft3(rowid, x) VALUES(3, 'ONT');
+    INSERT INTO ft3(rowid, x) VALUES(4, 'on');
+    INSERT INTO ft3(rowid, x) VALUES(5, 'On');
+  }
+
+  do_execsql_test $tn.2.2 {
+    SELECT rowid FROM ft3('on*');
+  } {1 2 3 4 5}
+
+  do_execsql_test $tn.2.3 {
+    SELECT rowid, insttoken(ft3, 0, 0) FROM ft3('on*');
+  } {1 one 2 one.ONE 3 ont.ONT 4 on 5 on.On}
+
+  }
+}
+
+finish_test
+
diff --git a/ext/fts5/test/fts5origintext4.test b/ext/fts5/test/fts5origintext4.test
new file mode 100644
index 0000000000000000000000000000000000000000..3b907ba2cc40459321f7dae2dd967d52986f8507
--- /dev/null
+++ b/ext/fts5/test/fts5origintext4.test
@@ -0,0 +1,80 @@
+# 2023 November 22
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests focused on phrase queries.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5origintext4
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+# The tests below verify that a doclist-index is used to limit the number
+# of pages loaded into the cache. It does this by querying sqlite3_db_status()
+# for the amount of memory used by the pager cache.
+#
+# memsubsys1 effectively limits the page-cache to 24 pages. Which masks
+# the effect tested by the tests in this file. And "mmap" prevents the 
+# cache from being used, also preventing these tests from working.
+#
+if {[permutation]=="memsubsys1" || [permutation]=="mmap"} {
+  finish_test
+  return
+}
+
+sqlite3_fts5_register_origintext db
+do_execsql_test 1.0 {
+  PRAGMA page_size = 4096;
+  CREATE VIRTUAL TABLE ft USING fts5(
+      x, tokenize="origintext unicode61", tokendata=1
+  );
+}
+
+do_execsql_test 1.1 {
+  BEGIN;
+    INSERT INTO ft SELECT 'the first thing';
+
+    WITH s(i) AS (
+      SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<90000
+    )
+    INSERT INTO ft SELECT 'The second thing' FROM s;
+
+    INSERT INTO ft SELECT 'the first thing';
+  COMMIT;
+  INSERT INTO ft(ft) VALUES('optimize');
+}
+
+foreach {tn sql expr} {
+  1 { SELECT rowid FROM ft('the') }       {$mem > 250000}
+  2 { SELECT rowid FROM ft('first') }     {$mem <  50000}
+  3 { SELECT rowid FROM ft('the first') } {$mem <  50000}
+} {
+  db close
+  sqlite3 db test.db
+  sqlite3_fts5_register_origintext db
+
+  execsql $sql
+  do_test 1.2.$tn {
+    set mem [lindex [sqlite3_db_status db CACHE_USED 0] 1]
+    expr $expr
+  } 1
+}
+
+proc b {x} { string map [list "\0" "."] $x }
+db func b b
+# execsql_pp { SELECT segid, b(term), pgno from ft_idx }
+
+finish_test
+
diff --git a/ext/fts5/test/fts5origintext5.test b/ext/fts5/test/fts5origintext5.test
new file mode 100644
index 0000000000000000000000000000000000000000..848cc15b5cda0a1396ae3b1c9f07562d57612bb5
--- /dev/null
+++ b/ext/fts5/test/fts5origintext5.test
@@ -0,0 +1,273 @@
+# 2023 Dec 04
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests for tables that use both tokendata=1 and contentless_delete=1.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5origintext
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+# Return a random integer between 0 and n-1.
+#
+proc random {n} { expr {abs(int(rand()*$n))} }
+
+# Select an element of the list passed as the only argument at random and
+# return it. 
+#
+proc select_one {list} {
+  set n [llength $list]
+  lindex $list [random $n]
+}
+
+# Given a term that consists entirely of alphabet characters, return all
+# permutations of the term using upper and lower case characters. e.g.
+#
+#    "abc" -> {CBA cBA CbA cbA CBa cBa Cba cba}
+#
+proc casify {term {lRet {{}}}} {
+  if {$term==""} { return $lRet }
+  set t [string range $term 1 end]
+  set f1 [string toupper [string range $term 0 0]]
+  set f2 [string tolower [string range $term 0 0]]
+  set ret [list]
+  foreach x $lRet {
+    lappend ret "$x$f1"
+    lappend ret "$x$f2"
+  }
+  return [casify $t $ret]
+}
+
+proc vocab {} {
+  list abc def ghi jkl mno pqr stu vwx yza
+}
+
+# Return a random 3 letter term.
+#
+proc term {} {
+  if {[info exists ::expanded_vocab]==0} {
+    foreach v [vocab] { lappend ::expanded_vocab {*}[casify $v] }
+  }
+
+  select_one $::expanded_vocab
+}
+
+# Return a document - between 3 and 10 terms.
+#
+proc document {} {
+  set nTerm [expr [random 3] + 7]
+  set doc ""
+  for {set ii 0} {$ii < $nTerm} {incr ii} {
+    lappend doc [term]
+  }
+  set doc
+}
+db func document document
+
+#-------------------------------------------------------------------------
+
+expr srand(6)
+
+set NDOC  200
+set NLOOP 50
+
+sqlite3_fts5_register_origintext db
+
+proc tokens {cmd} { 
+  set ret [list]
+  for {set iTok 0} {$iTok < [$cmd xInstCount]} {incr iTok} {
+    set txt [$cmd xInstToken $iTok 0]
+    set txt [string map [list "\0" "."] $txt]
+    lappend ret $txt
+  }
+  set ret
+}
+sqlite3_fts5_create_function db tokens tokens
+
+proc rankfunc {cmd} { 
+  $cmd xRowid
+}
+sqlite3_fts5_create_function db rankfunc rankfunc
+
+proc ctrl_tokens {term args} {
+  set ret [list]
+  set term [string tolower $term]
+  foreach doc $args {
+    foreach a $doc {
+      if {[string tolower $a]==$term} {
+        if {$a==$term} {
+          lappend ret $a
+        } else {
+          lappend ret [string tolower $a].$a
+        }
+      }
+    }
+  }
+  set ret
+}
+db func ctrl_tokens ctrl_tokens
+
+proc do_all_vocab_test {tn} {
+  foreach ::v [concat [vocab] nnn] {
+    set answer [execsql {
+      SELECT id, ctrl_tokens($::v, x) FROM ctrl WHERE x LIKE '%' || $::v || '%'
+    }]
+    do_execsql_test $tn.$::v.1 {
+      SELECT rowid, tokens(ft) FROM ft($::v)
+    } $answer
+    do_execsql_test $tn.$::v.2 {
+      SELECT rowid, tokens(ft) FROM ft($::v) ORDER BY rank
+    } $answer
+  }
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE ft USING fts5(
+      x, tokenize="origintext unicode61", content=, contentless_delete=1,
+      tokendata=1
+  );
+
+  CREATE TABLE ctrl(id INTEGER PRIMARY KEY, x TEXT);
+  INSERT INTO ft(ft, rank) VALUES('pgsz', 64);
+  INSERT INTO ft(ft, rank) VALUES('rank', 'rankfunc()');
+}
+do_test 1.1 {
+  for {set ii 0} {$ii < $NDOC} {incr ii} {
+    set doc [document]
+    execsql {
+      INSERT INTO ft(rowid, x) VALUES($ii, $doc);
+      INSERT INTO ctrl(id, x) VALUES($ii, $doc);
+    }
+  }
+} {}
+
+#execsql_pp { SELECT * FROM ctrl }
+#execsql_pp { SELECT * FROM ft }
+#fts5_aux_test_functions db
+#execsql_pp { SELECT rowid, tokens(ft), fts5_test_poslist(ft) FROM ft('ghi'); }
+
+do_all_vocab_test 1.2
+
+for {set ii 0} {$ii < $NLOOP} {incr ii} {
+  set lRowid [execsql { SELECT id FROM ctrl WHERE random() % 2 }]
+  foreach r $lRowid {
+    execsql { DELETE FROM ft WHERE rowid = $r }
+    execsql { DELETE FROM ctrl WHERE rowid = $r }
+
+    set doc [document]
+    execsql { INSERT INTO ft(rowid, x) VALUES($r, $doc) }
+    execsql { INSERT INTO ctrl(id, x) VALUES($r, $doc) }
+  }
+  do_all_vocab_test 1.3.$ii
+}
+
+#-------------------------------------------------------------------------
+
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE ft2 USING fts5(
+      x, y, tokenize="origintext unicode61", content=, contentless_delete=1,
+      tokendata=1
+  );
+
+  CREATE TABLE ctrl2(id INTEGER PRIMARY KEY, x TEXT, y TEXT);
+  INSERT INTO ft2(ft2, rank) VALUES('pgsz', 64);
+  INSERT INTO ft2(ft2, rank) VALUES('rank', 'rankfunc()');
+}
+do_test 2.1 {
+  for {set ii 0} {$ii < $NDOC} {incr ii} {
+    set doc1 [document]
+    set doc2 [document]
+    execsql {
+      INSERT INTO ft2(rowid, x, y) VALUES($ii, $doc, $doc2);
+      INSERT INTO ctrl2(id, x, y) VALUES($ii, $doc, $doc2);
+    }
+  }
+} {}
+
+proc do_all_vocab_test2 {tn} {
+  foreach ::v [vocab] {
+    set answer [execsql {
+      SELECT id, ctrl_tokens($::v, x, y) FROM ctrl2
+      WHERE x LIKE '%' || $::v || '%' OR y LIKE '%' || $::v || '%';
+    }]
+    do_execsql_test $tn.$::v.1 {
+      SELECT rowid, tokens(ft2) FROM ft2($::v)
+    } $answer
+    do_execsql_test $tn.$::v.2 {
+      SELECT rowid, tokens(ft2) FROM ft2($::v) ORDER BY rank
+    } $answer
+  }
+}
+
+do_all_vocab_test2 2.2
+
+for {set ii 0} {$ii < $NLOOP} {incr ii} {
+  set lRowid [execsql { SELECT id FROM ctrl2 WHERE random() % 2 }]
+  foreach r $lRowid {
+    execsql { DELETE FROM ft2 WHERE rowid = $r }
+    execsql { DELETE FROM ctrl2 WHERE rowid = $r }
+
+    set doc1 [document]
+    set doc2 [document]
+    execsql { INSERT INTO ft2(rowid, x, y) VALUES($r, $doc, $doc1) }
+    execsql { INSERT INTO ctrl2(id, x, y) VALUES($r, $doc, $doc2) }
+  }
+  do_all_vocab_test 2.3.$ii
+}
+
+#-------------------------------------------------------------------------
+
+unset -nocomplain ::expanded_vocab
+proc vocab {} {
+  list abcde fghij klmno
+}
+
+proc do_all_vocab_test3 {tn} {
+  foreach ::v [concat [vocab] nnn] {
+    set answer [execsql {
+      SELECT rowid, ctrl_tokens($::v, w) FROM ctrl3 WHERE w LIKE '%' || $::v || '%'
+    }]
+    do_execsql_test $tn.$::v.1 {
+      SELECT rowid, tokens(ft3) FROM ft3($::v)
+    } $answer
+    do_execsql_test $tn.$::v.2 {
+      SELECT rowid, tokens(ft3) FROM ft3($::v) ORDER BY rank
+    } $answer
+  }
+}
+
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE ft3 USING fts5(
+      w, tokenize="origintext unicode61", content=, contentless_delete=1,
+      tokendata=1
+  );
+  INSERT INTO ft3(ft3, rank) VALUES('rank', 'rankfunc()');
+  CREATE TABLE ctrl3(w);
+}
+
+do_execsql_test 3.1 {
+  WITH s(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<2
+  )
+  INSERT INTO ctrl3 SELECT document() FROM s;
+  INSERT INTO ft3(rowid, w) SELECT rowid, w FROM ctrl3;
+}
+
+do_all_vocab_test3 3.2
+
+
+finish_test
+
diff --git a/ext/fts5/test/fts5origintext6.test b/ext/fts5/test/fts5origintext6.test
new file mode 100644
index 0000000000000000000000000000000000000000..7b27e310b9e1f2b7f6b59e2af1e4db0ef49ba757
--- /dev/null
+++ b/ext/fts5/test/fts5origintext6.test
@@ -0,0 +1,209 @@
+# 2014 Jan 08
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests focused on phrase queries.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5origintext6
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+proc insert_data {tbl} {
+  db eval "
+  INSERT INTO $tbl (rowid, x, y) VALUES
+    (1, 'ChH BDd HhG efc BjJ BGi GBG FdD','ciJ AFf ADf fBJ fhC GFI JEH fcA'),
+    (2, 'deg AIG Fie jII cCd Hbf igF fEE','GeA Ija gJg EDc HFi DDI dCf aDd'),
+    (3, 'IJC hga deC Jfa Aeg hfh CcH dfb','ajD hgC Jaf IfH CHe jIG AjD adF'),
+    (4, 'FiH GJH IDA AiG bBc CGG Eih bIH','hHg JaH aii IHE Ggd gcH gji CGc'),
+    (5, 'ceg CAd jFI GAB BGg EeC IdH acG','bBC eIG ifH eDE Adj bjb GCj ebA'),
+    (6, 'Eac Fbh aFF Eea jeG EIj HCc JJH','hbd giE Gfe eiI dEF abE cJf cAb'),
+    (7, 'dic hAc jEC AiG FEF jHc HiD HBI','aEd ebE Gfi AJG EBA faj GiG jjE'),
+    (8, 'Fca iEe EgE jjJ gce ijf EGc EBi','gaI dhH bFg CFc HeC CjI Jfg ccH'),
+    (9, 'cfd iaa HCf iHJ HjG ffh ABb ibi','CfG bia Dai eii Ejg Jeg fCg hDb'),
+    (10, 'Jjf hJC IID HJj bGB EbJ cgg eBj','jci jhi JAF jIg Bei Bcd cAC AJd'),
+    (11, 'egG Cdi bFf fEB hfH jDH jia Efd','FAd eCg fAi aiC baC eJG acF iGE'),
+    (12, 'Ada Gde CJI ADG gJA Cbb ccF iAB','eAE ajC FBB ccd Jgh fJg ieg hGE'),
+    (13, 'gBb fDG Jdd HdD fiJ Bed Cig iGg','heC FeI iaj gdg ebB giC HaD FIe'),
+    (14, 'FiI iDd Ffe igI bgB EJf FHG hDF','cjC AeI abf Fah cbJ ffH jEb aib'),
+    (15, 'jaF hBI jIH Gdh FEc Fij hgj jFh','dGA ADH feh AAI AfJ DbC gBi hGH'),
+    (16, 'gjH BGg iGj aFE CAH edI idf HEH','hIf DDg fjB hGi cHF BCH FjG Bgd'),
+    (17, 'iaI JGH hji gcj Dda eeG jDd CBi','cHg jeh caG gIc feF ihG hgJ Abj'),
+    (18, 'jHI iDB eFf AiH EFB CDb IAj GbC','Ghe dEI gdI jai gib dAG BIa djb'),
+    (19, 'abI fHG Ccf aAc FDa fiC agF bdB','afi hde IgE bGF cfg DHD diE aca'),
+    (20, 'IFh eDJ jfh cDg dde JGJ GAf fIJ','IBa EfH faE aeI FIF baJ FGj EIH'),
+    (21, 'Dee bFC bBA dEI CEj aJI ghA dCH','hBA ddA HJh dfj egI Dij dFE bGE'),
+    (22, 'JFE BCj FgA afc Jda FGD iHJ HDh','eAI jHe BHD Gah bbD Bgj gbh eGB'),
+    (23, 'edE CJE FjG aFI edA Cea FId iFe','ABG jcA ddj EEc Dcg hAI agA biA'),
+    (24, 'AgE cfc eef cGh aFB DcH efJ hcH','eGF HaB diG fgi bdc iGJ FGJ fFB'),
+    (25, 'aCa AgI GhC DDI hGJ Hgc Gcg bbG','iID Fga jHa jIj idj DFD bAC AFJ'),
+    (26, 'gjC JGh Fge faa eCA iGG gHE Gai','bDi hFE BbI DHD Adb Fgi hCa Hij'),
+    (27, 'Eji jEI jhF DFC afH cDh AGc dHA','IDe GcA ChF DIb Bif HfH agD DGh'),
+    (28, 'gDD AEE Dfg ICf Cbi JdE jgH eEi','eEb dBG FDE jgf cAI FaJ jaA cDd'),
+    (29, 'cbe Gec hgB Egi bca dHg bAJ jBf','EFB DgD GJc fDb EeE bBA GFC Hbe'),
+    (30, 'Adc eHB afI hDc Bhh baE hcJ BBd','JAH deg bcF Dab Bgj Gbb JHi FIB'),
+    (31, 'agF dIj AJJ Hfg cCG hED Igc fHC','JEf eia dHf Ggc Agj geD bEE Gei'),
+    (32, 'DAd cCe cbJ FjG gJe gba dJA GCf','eAf hFc bGE ABI hHA IcE abF CCE'),
+    (33, 'fFh jJe DhJ cDJ EBi AfD eFI IhG','fEG GCc Bjd EFF ggg CFe EHd ciB'),
+    (34, 'Ejb BjI eAF HaD eEJ FaG Eda AHC','Iah hgD EJG fdD cIE Daj IFf eJh'),
+    (35, 'aHG eCe FjA djJ dAJ jiJ IaE GGB','Acg iEF JfB FIC Eei ggj dic Iii'),
+    (36, 'Fdb EDF GaF JjB ehH IgC hgi DCG','cag DHI Fah hAJ bbh egG Hia hgJ'),
+    (37, 'HGg icC JEC AFJ Ddh dhi hfC Ich','fEg bED Bff hCJ EiA cIf bfG cGA'),
+    (38, 'aEJ jGI BCi FaA ebA BHj cIJ GcC','dCH ADd bGB cFE AgF geD cbG jIc'),
+    (39, 'JFB bBi heA BFA hgB Ahj EIE CgI','EIJ JFG FJE GeA Hdg HeH ACh GiA'),
+    (40, 'agB DDC CED igC Dfc DhI eiC fHi','dAB dcg iJF cej Fcc cAc AfB Fdd'),
+    (41, 'BdF DHj Ege hcG DEd eFa dCf gBb','FBG ChB cej iGd Hbh fCc Ibe Abh'),
+    (42, 'Bgc DjI cbC jGD bdb hHB IJA IJH','heg cii abb IGf eDe hJc dii fcE'),
+    (43, 'fhf ECa FiA aDh Jbf CiB Jhe ajD','GFE bIF aeD gDE BIE Jea DfC BEc'),
+    (44, 'GjE dBj DbJ ICF aDh EEH Ejb jFb','dJj aEc IBg bEG Faf fjA hjf FAF'),
+    (45, 'BfA efd IIJ AHG dDF eGg dIJ Gcb','Bfj jeb Ahc dAE ACH Dfb ieb dhC'),
+    (46, 'Ibj ege geC dJh CIi hbD EAG fGA','DEb BFe Bjg FId Fhg HeF JAc BbE'),
+    (47, 'dhB afC hgG bEJ aIe Cbe iEE JCD','bdg Ajc FGA jbh Jge iAj fIA jbE'),
+    (48, 'egH iDi bfH iiI hGC jFF Hfd AHB','bjE Beb iCc haB gIH Dea bga dfd'),
+    (49, 'jgf chc jGc Baj HBb jdE hgh heI','FFB aBd iEB EIG HGf Bbj EIi JbI'),
+    (50, 'jhe EGi ajA fbH geh EHe FdC bij','jDE bBC gbH HeE dcH iBH IFE AHi'),
+    (51, 'aCb JiD cgJ Bjj iAI Hbe IAF FhH','ijf bhE Jdf FED dCH bbG HcJ ebH');
+  "
+}
+
+foreach_detail_mode $testprefix {
+foreach external {0 1 2} {
+  reset_db
+
+  proc tokens {cmd} { 
+    set ret [list]
+    for {set iTok 0} {$iTok < [$cmd xInstCount]} {incr iTok} {
+      set txt [$cmd xInstToken $iTok 0]
+      set txt [string map [list "\0" "."] $txt]
+      lappend ret $txt
+    }
+    set ret
+  }
+  sqlite3_fts5_create_function db tokens tokens
+  sqlite3_fts5_register_origintext db
+
+  set E(0) internal
+  set E(1) external
+  set E(2) contentless
+  set e $E($external)
+
+  db eval { CREATE TABLE ex(x, y) }
+  switch -- $external {
+    0 {
+      do_execsql_test 1.$e.0 {
+        CREATE VIRTUAL TABLE ft USING fts5(
+            x, y, tokenize="origintext unicode61", tokendata=1, detail=%DETAIL%
+        );
+      }
+    }
+
+    1 {
+      do_execsql_test 1.$e.0 {
+        CREATE VIRTUAL TABLE ft USING fts5(
+            x, y, tokenize="origintext unicode61", tokendata=1, detail=%DETAIL%,
+            content=ex
+        );
+      }
+    }
+
+    2 {
+      do_execsql_test 1.$e.0 {
+        CREATE VIRTUAL TABLE ft USING fts5(
+            x, y, tokenize="origintext unicode61", tokendata=1, detail=%DETAIL%,
+            content=
+        );
+      }
+    }
+  }
+  insert_data ex
+  insert_data ft
+  
+  proc prefixquery {prefix bInst bYOnly} {
+    set ret [list]
+    db eval { SELECT rowid, x, y FROM ex ORDER BY rowid } {
+      set row [list]
+      set bSeen 0
+
+      set T [concat $x $y]
+      if {$bYOnly} { set T $y }
+
+      foreach w $T {
+        if {[string match -nocase $prefix $w]} {
+          set bSeen 1
+          if {$bInst} {
+            set v [string tolower $w]
+            if {$w != $v} { append v ".$w" }
+            lappend row $v
+          }
+        }
+      }
+  
+      if {$bSeen} {
+        lappend ret $rowid
+        lappend ret $row
+      }
+    }
+  
+    set ret
+  }
+  
+  proc do_prefixquery_test {tn prefix} {
+    set bInst [expr {$::e!="contentless" || "%DETAIL%"=="full"}]
+    set expect [prefixquery $prefix $bInst 0]
+    set expect2 [prefixquery $prefix $bInst 1]
+
+    uplevel [list do_execsql_test $tn.1 "
+        SELECT rowid, tokens(ft) FROM ft('$prefix')
+    " $expect]
+    uplevel [list do_execsql_test $tn.2 "
+        SELECT rowid, tokens(ft) FROM ft(fts5_insttoken('$prefix'))
+    " $expect]
+    db eval { INSERT INTO ft(ft, rank) VALUES('insttoken', 1) }
+    uplevel [list do_execsql_test $tn.3 "
+        SELECT rowid, tokens(ft) FROM ft('$prefix')
+    " $expect]
+    db eval { INSERT INTO ft(ft, rank) VALUES('insttoken', 0) }
+
+    if {"%DETAIL%"!="none"} {
+      uplevel [list do_execsql_test $tn.4 "
+          SELECT rowid, tokens(ft) FROM ft('y: $prefix')
+      " $expect2]
+      uplevel [list do_execsql_test $tn.5 "
+          SELECT rowid, tokens(ft) FROM ft(fts5_insttoken('y: $prefix'))
+      " $expect2]
+      db eval { INSERT INTO ft(ft, rank) VALUES('insttoken', 1) }
+      uplevel [list do_execsql_test $tn.6 "
+          SELECT rowid, tokens(ft) FROM ft('y: $prefix')
+      " $expect2]
+      db eval { INSERT INTO ft(ft, rank) VALUES('insttoken', 0) }
+    }
+  }
+  
+  do_prefixquery_test 1.$e.1 a*
+  do_prefixquery_test 1.$e.2 b*
+  do_prefixquery_test 1.$e.3 c*
+  do_prefixquery_test 1.$e.4 d*
+  do_prefixquery_test 1.$e.5 e*
+  do_prefixquery_test 1.$e.6 f*
+  do_prefixquery_test 1.$e.7 g*
+  do_prefixquery_test 1.$e.8 h*
+  do_prefixquery_test 1.$e.9 i*
+  do_prefixquery_test 1.$e.10 j*
+}}
+
+
+
+finish_test
+
diff --git a/ext/fts5/test/fts5phrase.test b/ext/fts5/test/fts5phrase.test
new file mode 100644
index 0000000000000000000000000000000000000000..708cdfd83e87bc7ce39d44df4ca0f89e7ac81d31
--- /dev/null
+++ b/ext/fts5/test/fts5phrase.test
@@ -0,0 +1,124 @@
+# 2014 Jan 08
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests focused on phrase queries.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5phrase
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t3 USING fts5(a, b, c);
+  INSERT INTO t3 VALUES('d e a', 'd i j j f', 'i j i e b f h'); -- 1
+  INSERT INTO t3 VALUES('g a e', 'f g i g a', 'h d g i g h c'); -- 2
+  INSERT INTO t3 VALUES('e a d', 'e i h a f', 'c e h i f b i'); -- 3
+  INSERT INTO t3 VALUES('a g c', 'd j d j c', 'c d f j i g j'); -- 4
+  INSERT INTO t3 VALUES('b c b', 'j g c d f', 'j c j d g f b'); -- 5
+  INSERT INTO t3 VALUES('j a d', 'e b i h h', 'c c f g d i d'); -- 6
+  INSERT INTO t3 VALUES('a d f', 'h g i i i', 'e a g c i f b'); -- 7
+  INSERT INTO t3 VALUES('g f d', 'f c g b j', 'b b h h h j j'); -- 8
+  INSERT INTO t3 VALUES('f h g', 'c j f g j', 'd h d f e b h'); -- 9
+  INSERT INTO t3 VALUES('f h d', 'c i a d b', 'g b j b a d e'); -- 10
+  INSERT INTO t3 VALUES('j h h', 'j i h a g', 'd e i e a g j'); -- 11
+  INSERT INTO t3 VALUES('a b e', 'h g a g c', 'h c a a d e g'); -- 12
+  INSERT INTO t3 VALUES('a j g', 'i h i f i', 'a g h j g i b'); -- 13
+  INSERT INTO t3 VALUES('j h e', 'f e d i e', 'i d c f e d c'); -- 14
+  INSERT INTO t3 VALUES('d j d', 'd b i a c', 'g d h i d b e'); -- 15
+  INSERT INTO t3 VALUES('h j e', 'e b b c f', 'j a f g h d j'); -- 16
+  INSERT INTO t3 VALUES('c b j', 'c a b a i', 'h f i d a d c'); -- 17
+  INSERT INTO t3 VALUES('e e d', 'i d f c c', 'g i d a f e a'); -- 18
+  INSERT INTO t3 VALUES('e i g', 'e a b i h', 'i f d d a d f'); -- 19
+  INSERT INTO t3 VALUES('h g f', 'b h h j d', 'i f d e g j a'); -- 20
+  INSERT INTO t3 VALUES('e h f', 'j c b c f', 'j a j g h a c'); -- 21
+  INSERT INTO t3 VALUES('d c h', 'b g i c e', 'i i c d e h i'); -- 22
+  INSERT INTO t3 VALUES('a h i', 'a g d f f', 'e f i i b b h'); -- 23
+  INSERT INTO t3 VALUES('d d g', 'c c b c g', 'g c h e b c e'); -- 24
+  INSERT INTO t3 VALUES('a b b', 'b f a d i', 'd a h a b c i'); -- 25
+  INSERT INTO t3 VALUES('a f d', 'a j e a h', 'j i h j a i f'); -- 26
+  INSERT INTO t3 VALUES('d j d', 'h a d i a', 'h h f j h g a'); -- 27
+  INSERT INTO t3 VALUES('g a e', 'd g f a g', 'i d b c g g j'); -- 28
+  INSERT INTO t3 VALUES('j e h', 'g h j h g', 'd a e j a a h'); -- 29
+  INSERT INTO t3 VALUES('e j e', 'g e j g c', 'f c e b e e a'); -- 30
+  INSERT INTO t3 VALUES('h f f', 'i j g e c', 'j j f c a i j'); -- 31
+  INSERT INTO t3 VALUES('a g c', 'c g d b i', 'g h c b a a f'); -- 32
+  INSERT INTO t3 VALUES('c h i', 'j d h e e', 'a h i d c c j'); -- 33
+  INSERT INTO t3 VALUES('d a c', 'e d d b j', 'c e b b h i h'); -- 34
+  INSERT INTO t3 VALUES('d f h', 'c a f c c', 'j b b c c j f'); -- 35
+  INSERT INTO t3 VALUES('b g h', 'g c c c f', 'c g c f h e e'); -- 36
+  INSERT INTO t3 VALUES('f e a', 'b h f j h', 'j g h f d g f'); -- 37
+  INSERT INTO t3 VALUES('h f a', 'a e i j g', 'f d a f d f c'); -- 38
+  INSERT INTO t3 VALUES('f i c', 'f i i i i', 'e c f d h j f'); -- 39
+  INSERT INTO t3 VALUES('h h d', 'd i e d i', 'd f e i a h a'); -- 40
+  INSERT INTO t3 VALUES('f g c', 'd a f c h', 'b b g j c e g'); -- 41
+  INSERT INTO t3 VALUES('h i h', 'h d j d e', 'e d b b i e g'); -- 42
+  INSERT INTO t3 VALUES('b h i', 'j e i d a', 'j j h e e c a'); -- 43
+  INSERT INTO t3 VALUES('g i g', 'f c c f d', 'a c i c a d a'); -- 44
+  INSERT INTO t3 VALUES('c c f', 'a b j d b', 'c a e g f e c'); -- 45
+  INSERT INTO t3 VALUES('d h j', 'g c b j d', 'e a h f h j g'); -- 46
+  INSERT INTO t3 VALUES('a a d', 'j e j a i', 'i d c f f f b'); -- 47
+  INSERT INTO t3 VALUES('b g j', 'e c i h f', 'd d h b g a d'); -- 48
+  INSERT INTO t3 VALUES('c i a', 'a c c c c', 'e h i e h i e'); -- 49
+  INSERT INTO t3 VALUES('f f c', 'f f b i i', 'f f a j e c i'); -- 50
+}
+
+proc pmatch {col expr} {
+  return [expr {[string first $expr $col]>=0}]
+}
+db func pmatch pmatch
+
+foreach {tn cols tokens} {
+  1 a         "c c"
+  2 b         "c c"
+  3 c         "c c"
+  4 {a b c}   "c c"
+  5 {a b c}   "b h"
+  6 {a b}     "b h"
+  7 {a c}     "b h"
+  8 {c a}     "b h"
+  9 {c}       "i e"
+  10 {b}      "i e"
+  11 {a}      "i e"
+} {
+  set where [list]
+  foreach c $cols { lappend where "pmatch($c, '$tokens')" }
+  set where [join $where " OR "]
+
+  foreach fts [list \
+      "{$cols}:[join $tokens +]"       \
+      "{$cols}:NEAR([join $tokens +])" \
+      "{$cols}:NEAR([join $tokens +],1)" \
+      "{$cols}:NEAR([join $tokens +],111)" \
+  ] {
+    set res [db eval "SELECT rowid FROM t3 WHERE $where"]
+    do_execsql_test "1.$tn.$fts->([llength $res] rows)" { 
+      SELECT rowid FROM t3($fts) 
+    } $res
+  }
+}
+
+do_execsql_test 2.0 {
+  SELECT rowid,
+    highlight(t3, 0, '*', '*'),
+    highlight(t3, 1, '*', '*'),
+    highlight(t3, 2, '*', '*')
+  FROM t3('a:f+f')
+} {
+  31 {h *f f*} {i j g e c} {j j f c a i j} 
+  50 {*f f* c} {f f b i i} {f f a j e c i}
+}
+
+finish_test
diff --git a/ext/fts5/test/fts5plan.test b/ext/fts5/test/fts5plan.test
new file mode 100644
index 0000000000000000000000000000000000000000..57d5254a35f080a56f8f210d16ebba7cf4d9d488
--- /dev/null
+++ b/ext/fts5/test/fts5plan.test
@@ -0,0 +1,65 @@
+# 2014 Dec 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file focuses on testing the planner (xBestIndex function).
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5plan
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(x, y);
+  CREATE VIRTUAL TABLE f1 USING fts5(ff);
+}
+
+do_eqp_test 1.1 {
+  SELECT * FROM t1, f1 WHERE f1 MATCH t1.x
+} {
+  QUERY PLAN
+  |--SCAN t1
+  `--SCAN f1 VIRTUAL TABLE INDEX 0:M1
+}
+
+do_eqp_test 1.2 {
+  SELECT * FROM t1, f1 WHERE f1 > t1.x
+} {
+  QUERY PLAN
+  |--SCAN f1 VIRTUAL TABLE INDEX 0:
+  `--SCAN t1
+}
+
+do_eqp_test 1.3 {
+  SELECT * FROM f1 WHERE f1 MATCH ? ORDER BY ff
+} {
+  QUERY PLAN
+  |--SCAN f1 VIRTUAL TABLE INDEX 0:M1
+  `--USE TEMP B-TREE FOR ORDER BY
+}
+
+do_eqp_test 1.4 {
+  SELECT * FROM f1 ORDER BY rank
+} {
+  QUERY PLAN
+  |--SCAN f1 VIRTUAL TABLE INDEX 0:
+  `--USE TEMP B-TREE FOR ORDER BY
+}
+
+do_eqp_test 1.5 {
+  SELECT * FROM f1 WHERE rank MATCH ?
+} {SCAN f1 VIRTUAL TABLE INDEX 0:r}
+
+finish_test
diff --git a/ext/fts5/test/fts5porter.test b/ext/fts5/test/fts5porter.test
new file mode 100644
index 0000000000000000000000000000000000000000..de1c3e15a31de5ebe463dd180be90116e9cc00ec
--- /dev/null
+++ b/ext/fts5/test/fts5porter.test
@@ -0,0 +1,11805 @@
+# 2014 Dec 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests focusing on the fts5 porter stemmer implementation.
+#
+#   http://tartarus.org/martin/PorterStemmer/
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5porter
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+set test_vocab {
+  a               a               aaron           aaron          
+  abaissiez       abaissiez       abandon         abandon        
+  abandoned       abandon         abase           abas           
+  abash           abash           abate           abat           
+  abated          abat            abatement       abat           
+  abatements      abat            abates          abat           
+  abbess          abbess          abbey           abbei          
+  abbeys          abbei           abbominable     abbomin        
+  abbot           abbot           abbots          abbot          
+  abbreviated     abbrevi         abed            ab             
+  abel            abel            aberga          aberga         
+  abergavenny     abergavenni     abet            abet           
+  abetting        abet            abhominable     abhomin        
+  abhor           abhor           abhorr          abhorr         
+  abhorred        abhor           abhorring       abhor          
+  abhors          abhor           abhorson        abhorson       
+  abide           abid            abides          abid           
+  abilities       abil            ability         abil           
+  abject          abject          abjectly        abjectli       
+  abjects         abject          abjur           abjur          
+  abjure          abjur           able            abl            
+  abler           abler           aboard          aboard         
+  abode           abod            aboded          abod           
+  abodements      abod            aboding         abod           
+  abominable      abomin          abominably      abomin         
+  abominations    abomin          abortive        abort          
+  abortives       abort           abound          abound         
+  abounding       abound          about           about          
+  above           abov            abr             abr            
+  abraham         abraham         abram           abram          
+  abreast         abreast         abridg          abridg         
+  abridge         abridg          abridged        abridg         
+  abridgment      abridg          abroach         abroach        
+  abroad          abroad          abrogate        abrog          
+  abrook          abrook          abrupt          abrupt         
+  abruption       abrupt          abruptly        abruptli       
+  absence         absenc          absent          absent         
+  absey           absei           absolute        absolut        
+  absolutely      absolut         absolv          absolv         
+  absolver        absolv          abstains        abstain        
+  abstemious      abstemi         abstinence      abstin         
+  abstract        abstract        absurd          absurd         
+  absyrtus        absyrtu         abundance       abund          
+  abundant        abund           abundantly      abundantli     
+  abus            abu             abuse           abus           
+  abused          abus            abuser          abus           
+  abuses          abus            abusing         abus           
+  abutting        abut            aby             abi            
+  abysm           abysm           ac              ac             
+  academe         academ          academes        academ         
+  accent          accent          accents         accent         
+  accept          accept          acceptable      accept         
+  acceptance      accept          accepted        accept         
+  accepts         accept          access          access         
+  accessary       accessari       accessible      access         
+  accidence       accid           accident        accid          
+  accidental      accident        accidentally    accident       
+  accidents       accid           accite          accit          
+  accited         accit           accites         accit          
+  acclamations    acclam          accommodate     accommod       
+  accommodated    accommod        accommodation   accommod       
+  accommodations  accommod        accommodo       accommodo      
+  accompanied     accompani       accompany       accompani      
+  accompanying    accompani       accomplices     accomplic      
+  accomplish      accomplish      accomplished    accomplish     
+  accomplishing   accomplish      accomplishment  accomplish     
+  accompt         accompt         accord          accord         
+  accordant       accord          accorded        accord         
+  accordeth       accordeth       according       accord         
+  accordingly     accordingli     accords         accord         
+  accost          accost          accosted        accost         
+  account         account         accountant      account        
+  accounted       account         accounts        account        
+  accoutred       accoutr         accoutrement    accoutr        
+  accoutrements   accoutr         accrue          accru          
+  accumulate      accumul         accumulated     accumul        
+  accumulation    accumul         accurs          accur          
+  accursed        accurs          accurst         accurst        
+  accus           accu            accusation      accus          
+  accusations     accus           accusative      accus          
+  accusativo      accusativo      accuse          accus          
+  accused         accus           accuser         accus          
+  accusers        accus           accuses         accus          
+  accuseth        accuseth        accusing        accus          
+  accustom        accustom        accustomed      accustom       
+  ace             ac              acerb           acerb          
+  ache            ach             acheron         acheron        
+  aches           ach             achiev          achiev         
+  achieve         achiev          achieved        achiev         
+  achievement     achiev          achievements    achiev         
+  achiever        achiev          achieves        achiev         
+  achieving       achiev          achilles        achil          
+  aching          ach             achitophel      achitophel     
+  acknowledg      acknowledg      acknowledge     acknowledg     
+  acknowledged    acknowledg      acknowledgment  acknowledg     
+  acknown         acknown         acold           acold          
+  aconitum        aconitum        acordo          acordo         
+  acorn           acorn           acquaint        acquaint       
+  acquaintance    acquaint        acquainted      acquaint       
+  acquaints       acquaint        acquir          acquir         
+  acquire         acquir          acquisition     acquisit       
+  acquit          acquit          acquittance     acquitt        
+  acquittances    acquitt         acquitted       acquit         
+  acre            acr             acres           acr            
+  across          across          act             act            
+  actaeon         actaeon         acted           act            
+  acting          act             action          action         
+  actions         action          actium          actium         
+  active          activ           actively        activ          
+  activity        activ           actor           actor          
+  actors          actor           acts            act            
+  actual          actual          acture          actur          
+  acute           acut            acutely         acut           
+  ad              ad              adage           adag           
+  adallas         adalla          adam            adam           
+  adamant         adam            add             add            
+  added           ad              adder           adder          
+  adders          adder           addeth          addeth         
+  addict          addict          addicted        addict         
+  addiction       addict          adding          ad             
+  addition        addit           additions       addit          
+  addle           addl            address         address        
+  addressing      address         addrest         addrest        
+  adds            add             adhere          adher          
+  adheres         adher           adieu           adieu          
+  adieus          adieu           adjacent        adjac          
+  adjoin          adjoin          adjoining       adjoin         
+  adjourn         adjourn         adjudg          adjudg         
+  adjudged        adjudg          adjunct         adjunct        
+  administer      administ        administration  administr      
+  admir           admir           admirable       admir          
+  admiral         admir           admiration      admir          
+  admire          admir           admired         admir          
+  admirer         admir           admiring        admir          
+  admiringly      admiringli      admission       admiss         
+  admit           admit           admits          admit          
+  admittance      admitt          admitted        admit          
+  admitting       admit           admonish        admonish       
+  admonishing     admonish        admonishment    admonish       
+  admonishments   admonish        admonition      admonit        
+  ado             ado             adonis          adoni          
+  adopt           adopt           adopted         adopt          
+  adoptedly       adoptedli       adoption        adopt          
+  adoptious       adopti          adopts          adopt          
+  ador            ador            adoration       ador           
+  adorations      ador            adore           ador           
+  adorer          ador            adores          ador           
+  adorest         adorest         adoreth         adoreth        
+  adoring         ador            adorn           adorn          
+  adorned         adorn           adornings       adorn          
+  adornment       adorn           adorns          adorn          
+  adown           adown           adramadio       adramadio      
+  adrian          adrian          adriana         adriana        
+  adriano         adriano         adriatic        adriat         
+  adsum           adsum           adulation       adul           
+  adulterate      adulter         adulterates     adulter        
+  adulterers      adulter         adulteress      adulteress     
+  adulteries      adulteri        adulterous      adulter        
+  adultery        adulteri        adultress       adultress      
+  advanc          advanc          advance         advanc         
+  advanced        advanc          advancement     advanc         
+  advancements    advanc          advances        advanc         
+  advancing       advanc          advantage       advantag       
+  advantageable   advantag        advantaged      advantag       
+  advantageous    advantag        advantages      advantag       
+  advantaging     advantag        advent          advent         
+  adventur        adventur        adventure       adventur       
+  adventures      adventur        adventuring     adventur       
+  adventurous     adventur        adventurously   adventur       
+  adversaries     adversari       adversary       adversari      
+  adverse         advers          adversely       advers         
+  adversities     advers          adversity       advers         
+  advertis        adverti         advertise       advertis       
+  advertised      advertis        advertisement   advertis       
+  advertising     advertis        advice          advic          
+  advis           advi            advise          advis          
+  advised         advis           advisedly       advisedli      
+  advises         advis           advisings       advis          
+  advocate        advoc           advocation      advoc          
+  aeacida         aeacida         aeacides        aeacid         
+  aedile          aedil           aediles         aedil          
+  aegeon          aegeon          aegion          aegion         
+  aegles          aegl            aemelia         aemelia        
+  aemilia         aemilia         aemilius        aemiliu        
+  aeneas          aenea           aeolus          aeolu          
+  aer             aer             aerial          aerial         
+  aery            aeri            aesculapius     aesculapiu     
+  aeson           aeson           aesop           aesop          
+  aetna           aetna           afar            afar           
+  afear           afear           afeard          afeard         
+  affability      affabl          affable         affabl         
+  affair          affair          affaire         affair         
+  affairs         affair          affect          affect         
+  affectation     affect          affectations    affect         
+  affected        affect          affectedly      affectedli     
+  affecteth       affecteth       affecting       affect         
+  affection       affect          affectionate    affection      
+  affectionately  affection       affections      affect         
+  affects         affect          affeer          affeer         
+  affianc         affianc         affiance        affianc        
+  affianced       affianc         affied          affi           
+  affin           affin           affined         affin          
+  affinity        affin           affirm          affirm         
+  affirmation     affirm          affirmatives    affirm         
+  afflict         afflict         afflicted       afflict        
+  affliction      afflict         afflictions     afflict        
+  afflicts        afflict         afford          afford         
+  affordeth       affordeth       affords         afford         
+  affray          affrai          affright        affright       
+  affrighted      affright        affrights       affright       
+  affront         affront         affronted       affront        
+  affy            affi            afield          afield         
+  afire           afir            afloat          afloat         
+  afoot           afoot           afore           afor           
+  aforehand       aforehand       aforesaid       aforesaid      
+  afraid          afraid          afresh          afresh         
+  afric           afric           africa          africa         
+  african         african         afront          afront         
+  after           after           afternoon       afternoon      
+  afterward       afterward       afterwards      afterward      
+  ag              ag              again           again          
+  against         against         agamemmon       agamemmon      
+  agamemnon       agamemnon       agate           agat           
+  agaz            agaz            age             ag             
+  aged            ag              agenor          agenor         
+  agent           agent           agents          agent          
+  ages            ag              aggravate       aggrav         
+  aggrief         aggrief         agile           agil           
+  agincourt       agincourt       agitation       agit           
+  aglet           aglet           agnize          agniz          
+  ago             ago             agone           agon           
+  agony           agoni           agree           agre           
+  agreed          agre            agreeing        agre           
+  agreement       agreement       agrees          agre           
+  agrippa         agrippa         aground         aground        
+  ague            agu             aguecheek       aguecheek      
+  agued           agu             agueface        aguefac        
+  agues           agu             ah              ah             
+  aha             aha             ahungry         ahungri        
+  ai              ai              aialvolio       aialvolio      
+  aiaria          aiaria          aid             aid            
+  aidance         aidanc          aidant          aidant         
+  aided           aid             aiding          aid            
+  aidless         aidless         aids            aid            
+  ail             ail             aim             aim            
+  aimed           aim             aimest          aimest         
+  aiming          aim             aims            aim            
+  ainsi           ainsi           aio             aio            
+  air             air             aired           air            
+  airless         airless         airs            air            
+  airy            airi            ajax            ajax           
+  akilling        akil            al              al             
+  alabaster       alabast         alack           alack          
+  alacrity        alacr           alarbus         alarbu         
+  alarm           alarm           alarms          alarm          
+  alarum          alarum          alarums         alarum         
+  alas            ala             alb             alb            
+  alban           alban           albans          alban          
+  albany          albani          albeit          albeit         
+  albion          albion          alchemist       alchemist      
+  alchemy         alchemi         alcibiades      alcibiad       
+  alcides         alcid           alder           alder          
+  alderman        alderman        aldermen        aldermen       
+  ale             al              alecto          alecto         
+  alehouse        alehous         alehouses       alehous        
+  alencon         alencon         alengon         alengon        
+  aleppo          aleppo          ales            al             
+  alewife         alewif          alexander       alexand        
+  alexanders      alexand         alexandria      alexandria     
+  alexandrian     alexandrian     alexas          alexa          
+  alias           alia            alice           alic           
+  alien           alien           aliena          aliena         
+  alight          alight          alighted        alight         
+  alights         alight          aliis           alii           
+  alike           alik            alisander       alisand        
+  alive           aliv            all             all            
+  alla            alla            allay           allai          
+  allayed         allai           allaying        allai          
+  allayment       allay           allayments      allay          
+  allays          allai           allegation      alleg          
+  allegations     alleg           allege          alleg          
+  alleged         alleg           allegiance      allegi         
+  allegiant       allegi          alley           allei          
+  alleys          allei           allhallowmas    allhallowma    
+  alliance        allianc         allicholy       allicholi      
+  allied          alli            allies          alli           
+  alligant        allig           alligator       allig          
+  allons          allon           allot           allot          
+  allots          allot           allotted        allot          
+  allottery       allotteri       allow           allow          
+  allowance       allow           allowed         allow          
+  allowing        allow           allows          allow          
+  allur           allur           allure          allur          
+  allurement      allur           alluring        allur          
+  allusion        allus           ally            alli           
+  allycholly      allycholli      almain          almain         
+  almanac         almanac         almanack        almanack       
+  almanacs        almanac         almighty        almighti       
+  almond          almond          almost          almost         
+  alms            alm             almsman         almsman        
+  aloes           alo             aloft           aloft          
+  alone           alon            along           along          
+  alonso          alonso          aloof           aloof          
+  aloud           aloud           alphabet        alphabet       
+  alphabetical    alphabet        alphonso        alphonso       
+  alps            alp             already         alreadi        
+  also            also            alt             alt            
+  altar           altar           altars          altar          
+  alter           alter           alteration      alter          
+  altered         alter           alters          alter          
+  althaea         althaea         although        although       
+  altitude        altitud         altogether      altogeth       
+  alton           alton           alway           alwai          
+  always          alwai           am              am             
+  amaimon         amaimon         amain           amain          
+  amaking         amak            amamon          amamon         
+  amaz            amaz            amaze           amaz           
+  amazed          amaz            amazedly        amazedli       
+  amazedness      amazed          amazement       amaz           
+  amazes          amaz            amazeth         amazeth        
+  amazing         amaz            amazon          amazon         
+  amazonian       amazonian       amazons         amazon         
+  ambassador      ambassador      ambassadors     ambassador     
+  amber           amber           ambiguides      ambiguid       
+  ambiguities     ambigu          ambiguous       ambigu         
+  ambition        ambit           ambitions       ambit          
+  ambitious       ambiti          ambitiously     ambiti         
+  amble           ambl            ambled          ambl           
+  ambles          ambl            ambling         ambl           
+  ambo            ambo            ambuscadoes     ambuscado      
+  ambush          ambush          amen            amen           
+  amend           amend           amended         amend          
+  amendment       amend           amends          amend          
+  amerce          amerc           america         america        
+  ames            am              amiable         amiabl         
+  amid            amid            amidst          amidst         
+  amiens          amien           amis            ami            
+  amiss           amiss           amities         amiti          
+  amity           amiti           amnipotent      amnipot        
+  among           among           amongst         amongst        
+  amorous         amor            amorously       amor           
+  amort           amort           amount          amount         
+  amounts         amount          amour           amour          
+  amphimacus      amphimacu       ample           ampl           
+  ampler          ampler          amplest         amplest        
+  amplified       amplifi         amplify         amplifi        
+  amply           ampli           ampthill        ampthil        
+  amurath         amurath         amyntas         amynta         
+  an              an              anatomiz        anatomiz       
+  anatomize       anatom          anatomy         anatomi        
+  ancestor        ancestor        ancestors       ancestor       
+  ancestry        ancestri        anchises        anchis         
+  anchor          anchor          anchorage       anchorag       
+  anchored        anchor          anchoring       anchor         
+  anchors         anchor          anchovies       anchovi        
+  ancient         ancient         ancientry       ancientri      
+  ancients        ancient         ancus           ancu           
+  and             and             andirons        andiron        
+  andpholus       andpholu        andren          andren         
+  andrew          andrew          andromache      andromach      
+  andronici       andronici       andronicus      andronicu      
+  anew            anew            ang             ang            
+  angel           angel           angelica        angelica       
+  angelical       angel           angelo          angelo         
+  angels          angel           anger           anger          
+  angerly         angerli         angers          anger          
+  anges           ang             angiers         angier         
+  angl            angl            anglais         anglai         
+  angle           angl            angler          angler         
+  angleterre      angleterr       angliae         anglia         
+  angling         angl            anglish         anglish        
+  angrily         angrili         angry           angri          
+  anguish         anguish         angus           angu           
+  animal          anim            animals         anim           
+  animis          animi           anjou           anjou          
+  ankle           ankl            anna            anna           
+  annals          annal           anne            ann            
+  annex           annex           annexed         annex          
+  annexions       annexion        annexment       annex          
+  annothanize     annothan        announces       announc        
+  annoy           annoi           annoyance       annoy          
+  annoying        annoi           annual          annual         
+  anoint          anoint          anointed        anoint         
+  anon            anon            another         anoth          
+  anselmo         anselmo         answer          answer         
+  answerable      answer          answered        answer         
+  answerest       answerest       answering       answer         
+  answers         answer          ant             ant            
+  ante            ant             antenor         antenor        
+  antenorides     antenorid       anteroom        anteroom       
+  anthem          anthem          anthems         anthem         
+  anthony         anthoni         anthropophagi   anthropophagi  
+  anthropophaginian anthropophaginian antiates        antiat         
+  antic           antic           anticipate      anticip        
+  anticipates     anticip         anticipatest    anticipatest   
+  anticipating    anticip         anticipation    anticip        
+  antick          antick          anticly         anticli        
+  antics          antic           antidote        antidot        
+  antidotes       antidot         antigonus       antigonu       
+  antiopa         antiopa         antipathy       antipathi      
+  antipholus      antipholu       antipholuses    antipholus     
+  antipodes       antipod         antiquary       antiquari      
+  antique         antiqu          antiquity       antiqu         
+  antium          antium          antoniad        antoniad       
+  antonio         antonio         antonius        antoniu        
+  antony          antoni          antres          antr           
+  anvil           anvil           any             ani            
+  anybody         anybodi         anyone          anyon          
+  anything        anyth           anywhere        anywher        
+  ap              ap              apace           apac           
+  apart           apart           apartment       apart          
+  apartments      apart           ape             ap             
+  apemantus       apemantu        apennines       apennin        
+  apes            ap              apiece          apiec          
+  apish           apish           apollinem       apollinem      
+  apollo          apollo          apollodorus     apollodoru     
+  apology         apolog          apoplex         apoplex        
+  apoplexy        apoplexi        apostle         apostl         
+  apostles        apostl          apostrophas     apostropha     
+  apoth           apoth           apothecary      apothecari     
+  appal           appal           appall          appal          
+  appalled        appal           appals          appal          
+  apparel         apparel         apparell        apparel        
+  apparelled      apparel         apparent        appar          
+  apparently      appar           apparition      apparit        
+  apparitions     apparit         appeach         appeach        
+  appeal          appeal          appeals         appeal         
+  appear          appear          appearance      appear         
+  appeared        appear          appeareth       appeareth      
+  appearing       appear          appears         appear         
+  appeas          appea           appease         appeas         
+  appeased        appeas          appelant        appel          
+  appele          appel           appelee         appele         
+  appeles         appel           appelez         appelez        
+  appellant       appel           appellants      appel          
+  appelons        appelon         appendix        appendix       
+  apperil         apperil         appertain       appertain      
+  appertaining    appertain       appertainings   appertain      
+  appertains      appertain       appertinent     appertin       
+  appertinents    appertin        appetite        appetit        
+  appetites       appetit         applaud         applaud        
+  applauded       applaud         applauding      applaud        
+  applause        applaus         applauses       applaus        
+  apple           appl            apples          appl           
+  appletart       appletart       appliance       applianc       
+  appliances      applianc        applications    applic         
+  applied         appli           applies         appli          
+  apply           appli           applying        appli          
+  appoint         appoint         appointed       appoint        
+  appointment     appoint         appointments    appoint        
+  appoints        appoint         apprehend       apprehend      
+  apprehended     apprehend       apprehends      apprehend      
+  apprehension    apprehens       apprehensions   apprehens      
+  apprehensive    apprehens       apprendre       apprendr       
+  apprenne        apprenn         apprenticehood  apprenticehood 
+  appris          appri           approach        approach       
+  approachers     approach        approaches      approach       
+  approacheth     approacheth     approaching     approach       
+  approbation     approb          approof         approof        
+  appropriation   appropri        approv          approv         
+  approve         approv          approved        approv         
+  approvers       approv          approves        approv         
+  appurtenance    appurten        appurtenances   appurten       
+  apricocks       apricock        april           april          
+  apron           apron           aprons          apron          
+  apt             apt             apter           apter          
+  aptest          aptest          aptly           aptli          
+  aptness         apt             aqua            aqua           
+  aquilon         aquilon         aquitaine       aquitain       
+  arabia          arabia          arabian         arabian        
+  araise          arais           arbitrate       arbitr         
+  arbitrating     arbitr          arbitrator      arbitr         
+  arbitrement     arbitr          arbors          arbor          
+  arbour          arbour          arc             arc            
+  arch            arch            archbishop      archbishop     
+  archbishopric   archbishopr     archdeacon      archdeacon     
+  arched          arch            archelaus       archelau       
+  archer          archer          archers         archer         
+  archery         archeri         archibald       archibald      
+  archidamus      archidamu       architect       architect      
+  arcu            arcu            arde            ard            
+  arden           arden           ardent          ardent         
+  ardour          ardour          are             ar             
+  argal           argal           argier          argier         
+  argo            argo            argosies        argosi         
+  argosy          argosi          argu            argu           
+  argue           argu            argued          argu           
+  argues          argu            arguing         argu           
+  argument        argument        arguments       argument       
+  argus           argu            ariachne        ariachn        
+  ariadne         ariadn          ariel           ariel          
+  aries           ari             aright          aright         
+  arinado         arinado         arinies         arini          
+  arion           arion           arise           aris           
+  arises          aris            ariseth         ariseth        
+  arising         aris            aristode        aristod        
+  aristotle       aristotl        arithmetic      arithmet       
+  arithmetician   arithmetician   ark             ark            
+  arm             arm             arma            arma           
+  armado          armado          armadoes        armado         
+  armagnac        armagnac        arme            arm            
+  armed           arm             armenia         armenia        
+  armies          armi            armigero        armigero       
+  arming          arm             armipotent      armipot        
+  armor           armor           armour          armour         
+  armourer        armour          armourers       armour         
+  armours         armour          armoury         armouri        
+  arms            arm             army            armi           
+  arn             arn             aroint          aroint         
+  arose           aros            arouse          arous          
+  aroused         arous           arragon         arragon        
+  arraign         arraign         arraigned       arraign        
+  arraigning      arraign         arraignment     arraign        
+  arrant          arrant          arras           arra           
+  array           arrai           arrearages      arrearag       
+  arrest          arrest          arrested        arrest         
+  arrests         arrest          arriv           arriv          
+  arrival         arriv           arrivance       arriv          
+  arrive          arriv           arrived         arriv          
+  arrives         arriv           arriving        arriv          
+  arrogance       arrog           arrogancy       arrog          
+  arrogant        arrog           arrow           arrow          
+  arrows          arrow           art             art            
+  artemidorus     artemidoru      arteries        arteri         
+  arthur          arthur          article         articl         
+  articles        articl          articulate      articul        
+  artificer       artific         artificial      artifici       
+  artillery       artilleri       artire          artir          
+  artist          artist          artists         artist         
+  artless         artless         artois          artoi          
+  arts            art             artus           artu           
+  arviragus       arviragu        as              as             
+  asaph           asaph           ascanius        ascaniu        
+  ascend          ascend          ascended        ascend         
+  ascendeth       ascendeth       ascends         ascend         
+  ascension       ascens          ascent          ascent         
+  ascribe         ascrib          ascribes        ascrib         
+  ash             ash             asham           asham          
+  ashamed         asham           asher           asher          
+  ashes           ash             ashford         ashford        
+  ashore          ashor           ashouting       ashout         
+  ashy            ashi            asia            asia           
+  aside           asid            ask             ask            
+  askance         askanc          asked           ask            
+  asker           asker           asketh          asketh         
+  asking          ask             asks            ask            
+  aslant          aslant          asleep          asleep         
+  asmath          asmath          asp             asp            
+  aspect          aspect          aspects         aspect         
+  aspen           aspen           aspersion       aspers         
+  aspic           aspic           aspicious       aspici         
+  aspics          aspic           aspir           aspir          
+  aspiration      aspir           aspire          aspir          
+  aspiring        aspir           asquint         asquint        
+  ass             ass             assail          assail         
+  assailable      assail          assailant       assail         
+  assailants      assail          assailed        assail         
+  assaileth       assaileth       assailing       assail         
+  assails         assail          assassination   assassin       
+  assault         assault         assaulted       assault        
+  assaults        assault         assay           assai          
+  assaying        assai           assays          assai          
+  assemblance     assembl         assemble        assembl        
+  assembled       assembl         assemblies      assembl        
+  assembly        assembl         assent          assent         
+  asses           ass             assez           assez          
+  assign          assign          assigned        assign         
+  assigns         assign          assinico        assinico       
+  assist          assist          assistance      assist         
+  assistances     assist          assistant       assist         
+  assistants      assist          assisted        assist         
+  assisting       assist          associate       associ         
+  associated      associ          associates      associ         
+  assuage         assuag          assubjugate     assubjug       
+  assum           assum           assume          assum          
+  assumes         assum           assumption      assumpt        
+  assur           assur           assurance       assur          
+  assure          assur           assured         assur          
+  assuredly       assuredli       assures         assur          
+  assyrian        assyrian        astonish        astonish       
+  astonished      astonish        astraea         astraea        
+  astray          astrai          astrea          astrea         
+  astronomer      astronom        astronomers     astronom       
+  astronomical    astronom        astronomy       astronomi      
+  asunder         asund           at              at             
+  atalanta        atalanta        ate             at             
+  ates            at              athenian        athenian       
+  athenians       athenian        athens          athen          
+  athol           athol           athversary      athversari     
+  athwart         athwart         atlas           atla           
+  atomies         atomi           atomy           atomi          
+  atone           aton            atonement       aton           
+  atonements      aton            atropos         atropo         
+  attach          attach          attached        attach         
+  attachment      attach          attain          attain         
+  attainder       attaind         attains         attain         
+  attaint         attaint         attainted       attaint        
+  attainture      attaintur       attempt         attempt        
+  attemptable     attempt         attempted       attempt        
+  attempting      attempt         attempts        attempt        
+  attend          attend          attendance      attend         
+  attendant       attend          attendants      attend         
+  attended        attend          attendents      attend         
+  attendeth       attendeth       attending       attend         
+  attends         attend          attent          attent         
+  attention       attent          attentive       attent         
+  attentivenes    attentiven      attest          attest         
+  attested        attest          attir           attir          
+  attire          attir           attired         attir          
+  attires         attir           attorney        attornei       
+  attorneyed      attornei        attorneys       attornei       
+  attorneyship    attorneyship    attract         attract        
+  attraction      attract         attractive      attract        
+  attracts        attract         attribute       attribut       
+  attributed      attribut        attributes      attribut       
+  attribution     attribut        attributive     attribut       
+  atwain          atwain          au              au             
+  aubrey          aubrei          auburn          auburn         
+  aucun           aucun           audacious       audaci         
+  audaciously     audaci          audacity        audac          
+  audible         audibl          audience        audienc        
+  audis           audi            audit           audit          
+  auditor         auditor         auditors        auditor        
+  auditory        auditori        audre           audr           
+  audrey          audrei          aufidius        aufidiu        
+  aufidiuses      aufidius        auger           auger          
+  aught           aught           augment         augment        
+  augmentation    augment         augmented       augment        
+  augmenting      augment         augurer         augur          
+  augurers        augur           augures         augur          
+  auguring        augur           augurs          augur          
+  augury          auguri          august          august         
+  augustus        augustu         auld            auld           
+  aumerle         aumerl          aunchient       aunchient      
+  aunt            aunt            aunts           aunt           
+  auricular       auricular       aurora          aurora         
+  auspicious      auspici         aussi           aussi          
+  austere         auster          austerely       auster         
+  austereness     auster          austerity       auster         
+  austria         austria         aut             aut            
+  authentic       authent         author          author         
+  authorities     author          authority       author         
+  authorized      author          authorizing     author         
+  authors         author          autolycus       autolycu       
+  autre           autr            autumn          autumn         
+  auvergne        auvergn         avail           avail          
+  avails          avail           avarice         avaric         
+  avaricious      avarici         avaunt          avaunt         
+  ave             av              aveng           aveng          
+  avenge          aveng           avenged         aveng          
+  averring        aver            avert           avert          
+  aves            av              avez            avez           
+  avis            avi             avoid           avoid          
+  avoided         avoid           avoiding        avoid          
+  avoids          avoid           avoirdupois     avoirdupoi     
+  avouch          avouch          avouched        avouch         
+  avouches        avouch          avouchment      avouch         
+  avow            avow            aw              aw             
+  await           await           awaits          await          
+  awak            awak            awake           awak           
+  awaked          awak            awaken          awaken         
+  awakened        awaken          awakens         awaken         
+  awakes          awak            awaking         awak           
+  award           award           awards          award          
+  awasy           awasi           away            awai           
+  awe             aw              aweary          aweari         
+  aweless         aweless         awful           aw             
+  awhile          awhil           awkward         awkward        
+  awl             awl             awooing         awoo           
+  awork           awork           awry            awri           
+  axe             ax              axle            axl            
+  axletree        axletre         ay              ay             
+  aye             ay              ayez            ayez           
+  ayli            ayli            azur            azur           
+  azure           azur            b               b              
+  ba              ba              baa             baa            
+  babbl           babbl           babble          babbl          
+  babbling        babbl           babe            babe           
+  babes           babe            babies          babi           
+  baboon          baboon          baboons         baboon         
+  baby            babi            babylon         babylon        
+  bacare          bacar           bacchanals      bacchan        
+  bacchus         bacchu          bach            bach           
+  bachelor        bachelor        bachelors       bachelor       
+  back            back            backbite        backbit        
+  backbitten      backbitten      backing         back           
+  backs           back            backward        backward       
+  backwardly      backwardli      backwards       backward       
+  bacon           bacon           bacons          bacon          
+  bad             bad             bade            bade           
+  badge           badg            badged          badg           
+  badges          badg            badly           badli          
+  badness         bad             baes            bae            
+  baffl           baffl           baffle          baffl          
+  baffled         baffl           bag             bag            
+  baggage         baggag          bagot           bagot          
+  bagpipe         bagpip          bags            bag            
+  bail            bail            bailiff         bailiff        
+  baillez         baillez         baily           baili          
+  baisant         baisant         baisees         baise          
+  baiser          baiser          bait            bait           
+  baited          bait            baiting         bait           
+  baitings        bait            baits           bait           
+  bajazet         bajazet         bak             bak            
+  bake            bake            baked           bake           
+  baker           baker           bakers          baker          
+  bakes           bake            baking          bake           
+  bal             bal             balanc          balanc         
+  balance         balanc          balcony         balconi        
+  bald            bald            baldrick        baldrick       
+  bale            bale            baleful         bale           
+  balk            balk            ball            ball           
+  ballad          ballad          ballads         ballad         
+  ballast         ballast         ballasting      ballast        
+  ballet          ballet          ballow          ballow         
+  balls           ball            balm            balm           
+  balms           balm            balmy           balmi          
+  balsam          balsam          balsamum        balsamum       
+  balth           balth           balthasar       balthasar      
+  balthazar       balthazar       bames           bame           
+  ban             ban             banbury         banburi        
+  band            band            bandied         bandi          
+  banding         band            bandit          bandit         
+  banditti        banditti        banditto        banditto       
+  bands           band            bandy           bandi          
+  bandying        bandi           bane            bane           
+  banes           bane            bang            bang           
+  bangor          bangor          banish          banish         
+  banished        banish          banishers       banish         
+  banishment      banish          banister        banist         
+  bank            bank            bankrout        bankrout       
+  bankrupt        bankrupt        bankrupts       bankrupt       
+  banks           bank            banner          banner         
+  bannerets       banneret        banners         banner         
+  banning         ban             banns           bann           
+  banquet         banquet         banqueted       banquet        
+  banqueting      banquet         banquets        banquet        
+  banquo          banquo          bans            ban            
+  baptism         baptism         baptista        baptista       
+  baptiz          baptiz          bar             bar            
+  barbarian       barbarian       barbarians      barbarian      
+  barbarism       barbar          barbarous       barbar         
+  barbary         barbari         barbason        barbason       
+  barbed          barb            barber          barber         
+  barbermonger    barbermong      bard            bard           
+  bardolph        bardolph        bards           bard           
+  bare            bare            bared           bare           
+  barefac         barefac         barefaced       barefac        
+  barefoot        barefoot        bareheaded      barehead       
+  barely          bare            bareness        bare           
+  barful          bar             bargain         bargain        
+  bargains        bargain         barge           barg           
+  bargulus        bargulu         baring          bare           
+  bark            bark            barking         bark           
+  barkloughly     barkloughli     barks           bark           
+  barky           barki           barley          barlei         
+  barm            barm            barn            barn           
+  barnacles       barnacl         barnardine      barnardin      
+  barne           barn            barnes          barn           
+  barnet          barnet          barns           barn           
+  baron           baron           barons          baron          
+  barony          baroni          barr            barr           
+  barrabas        barraba         barrel          barrel         
+  barrels         barrel          barren          barren         
+  barrenly        barrenli        barrenness      barren         
+  barricado       barricado       barricadoes     barricado      
+  barrow          barrow          bars            bar            
+  barson          barson          barter          barter         
+  bartholomew     bartholomew     bas             ba             
+  basan           basan           base            base           
+  baseless        baseless        basely          base           
+  baseness        base            baser           baser          
+  bases           base            basest          basest         
+  bashful         bash            bashfulness     bash           
+  basilisco       basilisco       basilisk        basilisk       
+  basilisks       basilisk        basimecu        basimecu       
+  basin           basin           basingstoke     basingstok     
+  basins          basin           basis           basi           
+  bask            bask            basket          basket         
+  baskets         basket          bass            bass           
+  bassanio        bassanio        basset          basset         
+  bassianus       bassianu        basta           basta          
+  bastard         bastard         bastardizing    bastard        
+  bastardly       bastardli       bastards        bastard        
+  bastardy        bastardi        basted          bast           
+  bastes          bast            bastinado       bastinado      
+  basting         bast            bat             bat            
+  batailles       batail          batch           batch          
+  bate            bate            bated           bate           
+  bates           bate            bath            bath           
+  bathe           bath            bathed          bath           
+  bathing         bath            baths           bath           
+  bating          bate            batler          batler         
+  bats            bat             batt            batt           
+  battalia        battalia        battalions      battalion      
+  batten          batten          batter          batter         
+  battering       batter          batters         batter         
+  battery         batteri         battle          battl          
+  battled         battl           battlefield     battlefield    
+  battlements     battlement      battles         battl          
+  batty           batti           bauble          baubl          
+  baubles         baubl           baubling        baubl          
+  baulk           baulk           bavin           bavin          
+  bawcock         bawcock         bawd            bawd           
+  bawdry          bawdri          bawds           bawd           
+  bawdy           bawdi           bawl            bawl           
+  bawling         bawl            bay             bai            
+  baying          bai             baynard         baynard        
+  bayonne         bayonn          bays            bai            
+  be              be              beach           beach          
+  beached         beach           beachy          beachi         
+  beacon          beacon          bead            bead           
+  beaded          bead            beadle          beadl          
+  beadles         beadl           beads           bead           
+  beadsmen        beadsmen        beagle          beagl          
+  beagles         beagl           beak            beak           
+  beaks           beak            beam            beam           
+  beamed          beam            beams           beam           
+  bean            bean            beans           bean           
+  bear            bear            beard           beard          
+  bearded         beard           beardless       beardless      
+  beards          beard           bearer          bearer         
+  bearers         bearer          bearest         bearest        
+  beareth         beareth         bearing         bear           
+  bears           bear            beast           beast          
+  beastliest      beastliest      beastliness     beastli        
+  beastly         beastli         beasts          beast          
+  beat            beat            beated          beat           
+  beaten          beaten          beating         beat           
+  beatrice        beatric         beats           beat           
+  beau            beau            beaufort        beaufort       
+  beaumond        beaumond        beaumont        beaumont       
+  beauteous       beauteou        beautied        beauti         
+  beauties        beauti          beautified      beautifi       
+  beautiful       beauti          beautify        beautifi       
+  beauty          beauti          beaver          beaver         
+  beavers         beaver          became          becam          
+  because         becaus          bechanc         bechanc        
+  bechance        bechanc         bechanced       bechanc        
+  beck            beck            beckon          beckon         
+  beckons         beckon          becks           beck           
+  becom           becom           become          becom          
+  becomed         becom           becomes         becom          
+  becoming        becom           becomings       becom          
+  bed             bed             bedabbled       bedabbl        
+  bedash          bedash          bedaub          bedaub         
+  bedazzled       bedazzl         bedchamber      bedchamb       
+  bedclothes      bedcloth        bedded          bed            
+  bedeck          bedeck          bedecking       bedeck         
+  bedew           bedew           bedfellow       bedfellow      
+  bedfellows      bedfellow       bedford         bedford        
+  bedlam          bedlam          bedrench        bedrench       
+  bedrid          bedrid          beds            bed            
+  bedtime         bedtim          bedward         bedward        
+  bee             bee             beef            beef           
+  beefs           beef            beehives        beehiv         
+  been            been            beer            beer           
+  bees            bee             beest           beest          
+  beetle          beetl           beetles         beetl          
+  beeves          beev            befall          befal          
+  befallen        befallen        befalls         befal          
+  befell          befel           befits          befit          
+  befitted        befit           befitting       befit          
+  befor           befor           before          befor          
+  beforehand      beforehand      befortune       befortun       
+  befriend        befriend        befriended      befriend       
+  befriends       befriend        beg             beg            
+  began           began           beget           beget          
+  begets          beget           begetting       beget          
+  begg            begg            beggar          beggar         
+  beggared        beggar          beggarly        beggarli       
+  beggarman       beggarman       beggars         beggar         
+  beggary         beggari         begging         beg            
+  begin           begin           beginners       beginn         
+  beginning       begin           beginnings      begin          
+  begins          begin           begnawn         begnawn        
+  begone          begon           begot           begot          
+  begotten        begotten        begrimed        begrim         
+  begs            beg             beguil          beguil         
+  beguile         beguil          beguiled        beguil         
+  beguiles        beguil          beguiling       beguil         
+  begun           begun           behalf          behalf         
+  behalfs         behalf          behav           behav          
+  behaved         behav           behavedst       behavedst      
+  behavior        behavior        behaviors       behavior       
+  behaviour       behaviour       behaviours      behaviour      
+  behead          behead          beheaded        behead         
+  beheld          beheld          behest          behest         
+  behests         behest          behind          behind         
+  behold          behold          beholder        behold         
+  beholders       behold          beholdest       beholdest      
+  beholding       behold          beholds         behold         
+  behoof          behoof          behooffull      behoofful      
+  behooves        behoov          behove          behov          
+  behoves         behov           behowls         behowl         
+  being           be              bel             bel            
+  belarius        belariu         belch           belch          
+  belching        belch           beldam          beldam         
+  beldame         beldam          beldams         beldam         
+  belee           bele            belgia          belgia         
+  belie           beli            belied          beli           
+  belief          belief          beliest         beliest        
+  believ          believ          believe         believ         
+  believed        believ          believes        believ         
+  believest       believest       believing       believ         
+  belike          belik           bell            bell           
+  bellario        bellario        belle           bell           
+  bellied         belli           bellies         belli          
+  bellman         bellman         bellona         bellona        
+  bellow          bellow          bellowed        bellow         
+  bellowing       bellow          bellows         bellow         
+  bells           bell            belly           belli          
+  bellyful        belly           belman          belman         
+  belmont         belmont         belock          belock         
+  belong          belong          belonging       belong         
+  belongings      belong          belongs         belong         
+  belov           belov           beloved         belov          
+  beloving        belov           below           below          
+  belt            belt            belzebub        belzebub       
+  bemadding       bemad           bemet           bemet          
+  bemete          bemet           bemoan          bemoan         
+  bemoaned        bemoan          bemock          bemock         
+  bemoil          bemoil          bemonster       bemonst        
+  ben             ben             bench           bench          
+  bencher         bencher         benches         bench          
+  bend            bend            bended          bend           
+  bending         bend            bends           bend           
+  bene            bene            beneath         beneath        
+  benedicite      benedicit       benedick        benedick       
+  benediction     benedict        benedictus      benedictu      
+  benefactors     benefactor      benefice        benefic        
+  beneficial      benefici        benefit         benefit        
+  benefited       benefit         benefits        benefit        
+  benetted        benet           benevolence     benevol        
+  benevolences    benevol         benied          beni           
+  benison         benison         bennet          bennet         
+  bent            bent            bentii          bentii         
+  bentivolii      bentivolii      bents           bent           
+  benumbed        benumb          benvolio        benvolio       
+  bepaint         bepaint         bepray          beprai         
+  bequeath        bequeath        bequeathed      bequeath       
+  bequeathing     bequeath        bequest         bequest        
+  ber             ber             berard          berard         
+  berattle        berattl         beray           berai          
+  bere            bere            bereave         bereav         
+  bereaved        bereav          bereaves        bereav         
+  bereft          bereft          bergamo         bergamo        
+  bergomask       bergomask       berhym          berhym         
+  berhyme         berhym          berkeley        berkelei       
+  bermoothes      bermooth        bernardo        bernardo       
+  berod           berod           berowne         berown         
+  berri           berri           berries         berri          
+  berrord         berrord         berry           berri          
+  bertram         bertram         berwick         berwick        
+  bescreen        bescreen        beseech         beseech        
+  beseeched       beseech         beseechers      beseech        
+  beseeching      beseech         beseek          beseek         
+  beseem          beseem          beseemeth       beseemeth      
+  beseeming       beseem          beseems         beseem         
+  beset           beset           beshrew         beshrew        
+  beside          besid           besides         besid          
+  besieg          besieg          besiege         besieg         
+  besieged        besieg          beslubber       beslubb        
+  besmear         besmear         besmeared       besmear        
+  besmirch        besmirch        besom           besom          
+  besort          besort          besotted        besot          
+  bespake         bespak          bespeak         bespeak        
+  bespice         bespic          bespoke         bespok         
+  bespotted       bespot          bess            bess           
+  bessy           bessi           best            best           
+  bestained       bestain         bested          best           
+  bestial         bestial         bestir          bestir         
+  bestirr         bestirr         bestow          bestow         
+  bestowed        bestow          bestowing       bestow         
+  bestows         bestow          bestraught      bestraught     
+  bestrew         bestrew         bestrid         bestrid        
+  bestride        bestrid         bestrides       bestrid        
+  bet             bet             betake          betak          
+  beteem          beteem          bethink         bethink        
+  bethought       bethought       bethrothed      bethroth       
+  bethump         bethump         betid           betid          
+  betide          betid           betideth        betideth       
+  betime          betim           betimes         betim          
+  betoken         betoken         betook          betook         
+  betossed        betoss          betray          betrai         
+  betrayed        betrai          betraying       betrai         
+  betrays         betrai          betrims         betrim         
+  betroth         betroth         betrothed       betroth        
+  betroths        betroth         bett            bett           
+  betted          bet             better          better         
+  bettered        better          bettering       better         
+  betters         better          betting         bet            
+  bettre          bettr           between         between        
+  betwixt         betwixt         bevel           bevel          
+  beverage        beverag         bevis           bevi           
+  bevy            bevi            bewail          bewail         
+  bewailed        bewail          bewailing       bewail         
+  bewails         bewail          beware          bewar          
+  bewasted        bewast          beweep          beweep         
+  bewept          bewept          bewet           bewet          
+  bewhored        bewhor          bewitch         bewitch        
+  bewitched       bewitch         bewitchment     bewitch        
+  bewray          bewrai          beyond          beyond         
+  bezonian        bezonian        bezonians       bezonian       
+  bianca          bianca          bianco          bianco         
+  bias            bia             bibble          bibbl          
+  bickerings      bicker          bid             bid            
+  bidden          bidden          bidding         bid            
+  biddings        bid             biddy           biddi          
+  bide            bide            bides           bide           
+  biding          bide            bids            bid            
+  bien            bien            bier            bier           
+  bifold          bifold          big             big            
+  bigamy          bigami          biggen          biggen         
+  bigger          bigger          bigness         big            
+  bigot           bigot           bilberry        bilberri       
+  bilbo           bilbo           bilboes         bilbo          
+  bilbow          bilbow          bill            bill           
+  billeted        billet          billets         billet         
+  billiards       billiard        billing         bill           
+  billow          billow          billows         billow         
+  bills           bill            bin             bin            
+  bind            bind            bindeth         bindeth        
+  binding         bind            binds           bind           
+  biondello       biondello       birch           birch          
+  bird            bird            birding         bird           
+  birdlime        birdlim         birds           bird           
+  birnam          birnam          birth           birth          
+  birthday        birthdai        birthdom        birthdom       
+  birthplace      birthplac       birthright      birthright     
+  birthrights     birthright      births          birth          
+  bis             bi              biscuit         biscuit        
+  bishop          bishop          bishops         bishop         
+  bisson          bisson          bit             bit            
+  bitch           bitch           bite            bite           
+  biter           biter           bites           bite           
+  biting          bite            bits            bit            
+  bitt            bitt            bitten          bitten         
+  bitter          bitter          bitterest       bitterest      
+  bitterly        bitterli        bitterness      bitter         
+  blab            blab            blabb           blabb          
+  blabbing        blab            blabs           blab           
+  black           black           blackamoor      blackamoor     
+  blackamoors     blackamoor      blackberries    blackberri     
+  blackberry      blackberri      blacker         blacker        
+  blackest        blackest        blackfriars     blackfriar     
+  blackheath      blackheath      blackmere       blackmer       
+  blackness       black           blacks          black          
+  bladder         bladder         bladders        bladder        
+  blade           blade           bladed          blade          
+  blades          blade           blains          blain          
+  blam            blam            blame           blame          
+  blamed          blame           blameful        blame          
+  blameless       blameless       blames          blame          
+  blanc           blanc           blanca          blanca         
+  blanch          blanch          blank           blank          
+  blanket         blanket         blanks          blank          
+  blaspheme       blasphem        blaspheming     blasphem       
+  blasphemous     blasphem        blasphemy       blasphemi      
+  blast           blast           blasted         blast          
+  blasting        blast           blastments      blastment      
+  blasts          blast           blaz            blaz           
+  blaze           blaze           blazes          blaze          
+  blazing         blaze           blazon          blazon         
+  blazoned        blazon          blazoning       blazon         
+  bleach          bleach          bleaching       bleach         
+  bleak           bleak           blear           blear          
+  bleared         blear           bleat           bleat          
+  bleated         bleat           bleats          bleat          
+  bled            bled            bleed           bleed          
+  bleedest        bleedest        bleedeth        bleedeth       
+  bleeding        bleed           bleeds          bleed          
+  blemish         blemish         blemishes       blemish        
+  blench          blench          blenches        blench         
+  blend           blend           blended         blend          
+  blent           blent           bless           bless          
+  blessed         bless           blessedly       blessedli      
+  blessedness     blessed         blesses         bless          
+  blesseth        blesseth        blessing        bless          
+  blessings       bless           blest           blest          
+  blew            blew            blind           blind          
+  blinded         blind           blindfold       blindfold      
+  blinding        blind           blindly         blindli        
+  blindness       blind           blinds          blind          
+  blink           blink           blinking        blink          
+  bliss           bliss           blist           blist          
+  blister         blister         blisters        blister        
+  blithe          blith           blithild        blithild       
+  bloat           bloat           block           block          
+  blockish        blockish        blocks          block          
+  blois           bloi            blood           blood          
+  blooded         blood           bloodhound      bloodhound     
+  bloodied        bloodi          bloodier        bloodier       
+  bloodiest       bloodiest       bloodily        bloodili       
+  bloodless       bloodless       bloods          blood          
+  bloodshed       bloodsh         bloodshedding   bloodshed      
+  bloodstained    bloodstain      bloody          bloodi         
+  bloom           bloom           blooms          bloom          
+  blossom         blossom         blossoming      blossom        
+  blossoms        blossom         blot            blot           
+  blots           blot            blotted         blot           
+  blotting        blot            blount          blount         
+  blow            blow            blowed          blow           
+  blowers         blower          blowest         blowest        
+  blowing         blow            blown           blown          
+  blows           blow            blowse          blows          
+  blubb           blubb           blubber         blubber        
+  blubbering      blubber         blue            blue           
+  bluecaps        bluecap         bluest          bluest         
+  blunt           blunt           blunted         blunt          
+  blunter         blunter         bluntest        bluntest       
+  blunting        blunt           bluntly         bluntli        
+  bluntness       blunt           blunts          blunt          
+  blur            blur            blurr           blurr          
+  blurs           blur            blush           blush          
+  blushes         blush           blushest        blushest       
+  blushing        blush           blust           blust          
+  bluster         bluster         blusterer       bluster        
+  blusters        bluster         bo              bo             
+  boar            boar            board           board          
+  boarded         board           boarding        board          
+  boards          board           boarish         boarish        
+  boars           boar            boast           boast          
+  boasted         boast           boastful        boast          
+  boasting        boast           boasts          boast          
+  boat            boat            boats           boat           
+  boatswain       boatswain       bob             bob            
+  bobb            bobb            boblibindo      boblibindo     
+  bobtail         bobtail         bocchus         bocchu         
+  bode            bode            boded           bode           
+  bodements       bodement        bodes           bode           
+  bodg            bodg            bodied          bodi           
+  bodies          bodi            bodiless        bodiless       
+  bodily          bodili          boding          bode           
+  bodkin          bodkin          body            bodi           
+  bodykins        bodykin         bog             bog            
+  boggle          boggl           boggler         boggler        
+  bogs            bog             bohemia         bohemia        
+  bohemian        bohemian        bohun           bohun          
+  boil            boil            boiling         boil           
+  boils           boil            boist           boist          
+  boisterous      boister         boisterously    boister        
+  boitier         boitier         bold            bold           
+  bolden          bolden          bolder          bolder         
+  boldest         boldest         boldly          boldli         
+  boldness        bold            bolds           bold           
+  bolingbroke     bolingbrok      bolster         bolster        
+  bolt            bolt            bolted          bolt           
+  bolter          bolter          bolters         bolter         
+  bolting         bolt            bolts           bolt           
+  bombard         bombard         bombards        bombard        
+  bombast         bombast         bon             bon            
+  bona            bona            bond            bond           
+  bondage         bondag          bonded          bond           
+  bondmaid        bondmaid        bondman         bondman        
+  bondmen         bondmen         bonds           bond           
+  bondslave       bondslav        bone            bone           
+  boneless        boneless        bones           bone           
+  bonfire         bonfir          bonfires        bonfir         
+  bonjour         bonjour         bonne           bonn           
+  bonnet          bonnet          bonneted        bonnet         
+  bonny           bonni           bonos           bono           
+  bonto           bonto           bonville        bonvil         
+  bood            bood            book            book           
+  bookish         bookish         books           book           
+  boon            boon            boor            boor           
+  boorish         boorish         boors           boor           
+  boot            boot            booted          boot           
+  booties         booti           bootless        bootless       
+  boots           boot            booty           booti          
+  bor             bor             bora            bora           
+  borachio        borachio        bordeaux        bordeaux       
+  border          border          bordered        border         
+  borderers       border          borders         border         
+  bore            bore            boreas          borea          
+  bores           bore            boring          bore           
+  born            born            borne           born           
+  borough         borough         boroughs        borough        
+  borrow          borrow          borrowed        borrow         
+  borrower        borrow          borrowing       borrow         
+  borrows         borrow          bosko           bosko          
+  boskos          bosko           bosky           boski          
+  bosom           bosom           bosoms          bosom          
+  boson           boson           boss            boss           
+  bosworth        bosworth        botch           botch          
+  botcher         botcher         botches         botch          
+  botchy          botchi          both            both           
+  bots            bot             bottle          bottl          
+  bottled         bottl           bottles         bottl          
+  bottom          bottom          bottomless      bottomless     
+  bottoms         bottom          bouciqualt      bouciqualt     
+  bouge           boug            bough           bough          
+  boughs          bough           bought          bought         
+  bounce          bounc           bouncing        bounc          
+  bound           bound           bounded         bound          
+  bounden         bounden         boundeth        boundeth       
+  bounding        bound           boundless       boundless      
+  bounds          bound           bounteous       bounteou       
+  bounteously     bounteous       bounties        bounti         
+  bountiful       bounti          bountifully     bountifulli    
+  bounty          bounti          bourbier        bourbier       
+  bourbon         bourbon         bourchier       bourchier      
+  bourdeaux       bourdeaux       bourn           bourn          
+  bout            bout            bouts           bout           
+  bove            bove            bow             bow            
+  bowcase         bowcas          bowed           bow            
+  bowels          bowel           bower           bower          
+  bowing          bow             bowl            bowl           
+  bowler          bowler          bowling         bowl           
+  bowls           bowl            bows            bow            
+  bowsprit        bowsprit        bowstring       bowstr         
+  box             box             boxes           box            
+  boy             boi             boyet           boyet          
+  boyish          boyish          boys            boi            
+  brabant         brabant         brabantio       brabantio      
+  brabble         brabbl          brabbler        brabbler       
+  brac            brac            brace           brace          
+  bracelet        bracelet        bracelets       bracelet       
+  brach           brach           bracy           braci          
+  brag            brag            bragg           bragg          
+  braggardism     braggard        braggards       braggard       
+  braggart        braggart        braggarts       braggart       
+  bragged         brag            bragging        brag           
+  bragless        bragless        brags           brag           
+  braid           braid           braided         braid          
+  brain           brain           brained         brain          
+  brainford       brainford       brainish        brainish       
+  brainless       brainless       brains          brain          
+  brainsick       brainsick       brainsickly     brainsickli    
+  brake           brake           brakenbury      brakenburi     
+  brakes          brake           brambles        brambl         
+  bran            bran            branch          branch         
+  branches        branch          branchless      branchless     
+  brand           brand           branded         brand          
+  brandish        brandish        brandon         brandon        
+  brands          brand           bras            bra            
+  brass           brass           brassy          brassi         
+  brat            brat            brats           brat           
+  brav            brav            brave           brave          
+  braved          brave           bravely         brave          
+  braver          braver          bravery         braveri        
+  braves          brave           bravest         bravest        
+  braving         brave           brawl           brawl          
+  brawler         brawler         brawling        brawl          
+  brawls          brawl           brawn           brawn          
+  brawns          brawn           bray            brai           
+  braying         brai            braz            braz           
+  brazen          brazen          brazier         brazier        
+  breach          breach          breaches        breach         
+  bread           bread           breadth         breadth        
+  break           break           breaker         breaker        
+  breakfast       breakfast       breaking        break          
+  breaks          break           breast          breast         
+  breasted        breast          breasting       breast         
+  breastplate     breastplat      breasts         breast         
+  breath          breath          breathe         breath         
+  breathed        breath          breather        breather       
+  breathers       breather        breathes        breath         
+  breathest       breathest       breathing       breath         
+  breathless      breathless      breaths         breath         
+  brecknock       brecknock       bred            bred           
+  breech          breech          breeches        breech         
+  breeching       breech          breed           breed          
+  breeder         breeder         breeders        breeder        
+  breeding        breed           breeds          breed          
+  breese          brees           breeze          breez          
+  breff           breff           bretagne        bretagn        
+  brethen         brethen         bretheren       bretheren      
+  brethren        brethren        brevis          brevi          
+  brevity         breviti         brew            brew           
+  brewage         brewag          brewer          brewer         
+  brewers         brewer          brewing         brew           
+  brews           brew            briareus        briareu        
+  briars          briar           brib            brib           
+  bribe           bribe           briber          briber         
+  bribes          bribe           brick           brick          
+  bricklayer      bricklay        bricks          brick          
+  bridal          bridal          bride           bride          
+  bridegroom      bridegroom      bridegrooms     bridegroom     
+  brides          bride           bridge          bridg          
+  bridgenorth     bridgenorth     bridges         bridg          
+  bridget         bridget         bridle          bridl          
+  bridled         bridl           brief           brief          
+  briefer         briefer         briefest        briefest       
+  briefly         briefli         briefness       brief          
+  brier           brier           briers          brier          
+  brigandine      brigandin       bright          bright         
+  brighten        brighten        brightest       brightest      
+  brightly        brightli        brightness      bright         
+  brim            brim            brimful         brim           
+  brims           brim            brimstone       brimston       
+  brinded         brind           brine           brine          
+  bring           bring           bringer         bringer        
+  bringeth        bringeth        bringing        bring          
+  bringings       bring           brings          bring          
+  brinish         brinish         brink           brink          
+  brisk           brisk           brisky          briski         
+  bristle         bristl          bristled        bristl         
+  bristly         bristli         bristol         bristol        
+  bristow         bristow         britain         britain        
+  britaine        britain         britaines       britain        
+  british         british         briton          briton         
+  britons         briton          brittany        brittani       
+  brittle         brittl          broach          broach         
+  broached        broach          broad           broad          
+  broader         broader         broadsides      broadsid       
+  brocas          broca           brock           brock          
+  brogues         brogu           broil           broil          
+  broiling        broil           broils          broil          
+  broke           broke           broken          broken         
+  brokenly        brokenli        broker          broker         
+  brokers         broker          brokes          broke          
+  broking         broke           brooch          brooch         
+  brooches        brooch          brood           brood          
+  brooded         brood           brooding        brood          
+  brook           brook           brooks          brook          
+  broom           broom           broomstaff      broomstaff     
+  broth           broth           brothel         brothel        
+  brother         brother         brotherhood     brotherhood    
+  brotherhoods    brotherhood     brotherly       brotherli      
+  brothers        brother         broths          broth          
+  brought         brought         brow            brow           
+  brown           brown           browner         browner        
+  brownist        brownist        browny          browni         
+  brows           brow            browse          brows          
+  browsing        brows           bruis           brui           
+  bruise          bruis           bruised         bruis          
+  bruises         bruis           bruising        bruis          
+  bruit           bruit           bruited         bruit          
+  brundusium      brundusium      brunt           brunt          
+  brush           brush           brushes         brush          
+  brute           brute           brutish         brutish        
+  brutus          brutu           bubble          bubbl          
+  bubbles         bubbl           bubbling        bubbl          
+  bubukles        bubukl          buck            buck           
+  bucket          bucket          buckets         bucket         
+  bucking         buck            buckingham      buckingham     
+  buckle          buckl           buckled         buckl          
+  buckler         buckler         bucklers        buckler        
+  bucklersbury    bucklersburi    buckles         buckl          
+  buckram         buckram         bucks           buck           
+  bud             bud             budded          bud            
+  budding         bud             budge           budg           
+  budger          budger          budget          budget         
+  buds            bud             buff            buff           
+  buffet          buffet          buffeting       buffet         
+  buffets         buffet          bug             bug            
+  bugbear         bugbear         bugle           bugl           
+  bugs            bug             build           build          
+  builded         build           buildeth        buildeth       
+  building        build           buildings       build          
+  builds          build           built           built          
+  bulk            bulk            bulks           bulk           
+  bull            bull            bullcalf        bullcalf       
+  bullen          bullen          bullens         bullen         
+  bullet          bullet          bullets         bullet         
+  bullocks        bullock         bulls           bull           
+  bully           bulli           bulmer          bulmer         
+  bulwark         bulwark         bulwarks        bulwark        
+  bum             bum             bumbast         bumbast        
+  bump            bump            bumper          bumper         
+  bums            bum             bunch           bunch          
+  bunches         bunch           bundle          bundl          
+  bung            bung            bunghole        bunghol        
+  bungle          bungl           bunting         bunt           
+  buoy            buoi            bur             bur            
+  burbolt         burbolt         burd            burd           
+  burden          burden          burdened        burden         
+  burdening       burden          burdenous       burden         
+  burdens         burden          burgh           burgh          
+  burgher         burgher         burghers        burgher        
+  burglary        burglari        burgomasters    burgomast      
+  burgonet        burgonet        burgundy        burgundi       
+  burial          burial          buried          buri           
+  burier          burier          buriest         buriest        
+  burly           burli           burn            burn           
+  burned          burn            burnet          burnet         
+  burneth         burneth         burning         burn           
+  burnish         burnish         burns           burn           
+  burnt           burnt           burr            burr           
+  burrows         burrow          burs            bur            
+  burst           burst           bursting        burst          
+  bursts          burst           burthen         burthen        
+  burthens        burthen         burton          burton         
+  bury            buri            burying         buri           
+  bush            bush            bushels         bushel         
+  bushes          bush            bushy           bushi          
+  busied          busi            busily          busili         
+  busines         busin           business        busi           
+  businesses      busi            buskin          buskin         
+  busky           buski           buss            buss           
+  busses          buss            bussing         buss           
+  bustle          bustl           bustling        bustl          
+  busy            busi            but             but            
+  butcheed        butche          butcher         butcher        
+  butchered       butcher         butcheries      butcheri       
+  butcherly       butcherli       butchers        butcher        
+  butchery        butcheri        butler          butler         
+  butt            butt            butter          butter         
+  buttered        butter          butterflies     butterfli      
+  butterfly       butterfli       butterwoman     butterwoman    
+  buttery         butteri         buttock         buttock        
+  buttocks        buttock         button          button         
+  buttonhole      buttonhol       buttons         button         
+  buttress        buttress        buttry          buttri         
+  butts           butt            buxom           buxom          
+  buy             bui             buyer           buyer          
+  buying          bui             buys            bui            
+  buzz            buzz            buzzard         buzzard        
+  buzzards        buzzard         buzzers         buzzer         
+  buzzing         buzz            by              by             
+  bye             bye             byzantium       byzantium      
+  c               c               ca              ca             
+  cabbage         cabbag          cabileros       cabilero       
+  cabin           cabin           cabins          cabin          
+  cable           cabl            cables          cabl           
+  cackling        cackl           cacodemon       cacodemon      
+  caddis          caddi           caddisses       caddiss        
+  cade            cade            cadence         cadenc         
+  cadent          cadent          cades           cade           
+  cadmus          cadmu           caduceus        caduceu        
+  cadwal          cadwal          cadwallader     cadwallad      
+  caelius         caeliu          caelo           caelo          
+  caesar          caesar          caesarion       caesarion      
+  caesars         caesar          cage            cage           
+  caged           cage            cagion          cagion         
+  cain            cain            caithness       caith          
+  caitiff         caitiff         caitiffs        caitiff        
+  caius           caiu            cak             cak            
+  cake            cake            cakes           cake           
+  calaber         calab           calais          calai          
+  calamities      calam           calamity        calam          
+  calchas         calcha          calculate       calcul         
+  calen           calen           calendar        calendar       
+  calendars       calendar        calf            calf           
+  caliban         caliban         calibans        caliban        
+  calipolis       calipoli        cality          caliti         
+  caliver         caliv           call            call           
+  callat          callat          called          call           
+  callet          callet          calling         call           
+  calls           call            calm            calm           
+  calmest         calmest         calmly          calmli         
+  calmness        calm            calms           calm           
+  calpurnia       calpurnia       calumniate      calumni        
+  calumniating    calumni         calumnious      calumni        
+  calumny         calumni         calve           calv           
+  calved          calv            calves          calv           
+  calveskins      calveskin       calydon         calydon        
+  cam             cam             cambio          cambio         
+  cambria         cambria         cambric         cambric        
+  cambrics        cambric         cambridge       cambridg       
+  cambyses        cambys          came            came           
+  camel           camel           camelot         camelot        
+  camels          camel           camest          camest         
+  camillo         camillo         camlet          camlet         
+  camomile        camomil         camp            camp           
+  campeius        campeiu         camping         camp           
+  camps           camp            can             can            
+  canakin         canakin         canaries        canari         
+  canary          canari          cancel          cancel         
+  cancell         cancel          cancelled       cancel         
+  cancelling      cancel          cancels         cancel         
+  cancer          cancer          candidatus      candidatu      
+  candied         candi           candle          candl          
+  candles         candl           candlesticks    candlestick    
+  candy           candi           canidius        canidiu        
+  cank            cank            canker          canker         
+  cankerblossom   cankerblossom   cankers         canker         
+  cannibally      cannib          cannibals       cannib         
+  cannon          cannon          cannoneer       cannon         
+  cannons         cannon          cannot          cannot         
+  canon           canon           canoniz         canoniz        
+  canonize        canon           canonized       canon          
+  canons          canon           canopied        canopi         
+  canopies        canopi          canopy          canopi         
+  canst           canst           canstick        canstick       
+  canterbury      canterburi      cantle          cantl          
+  cantons         canton          canus           canu           
+  canvas          canva           canvass         canvass        
+  canzonet        canzonet        cap             cap            
+  capability      capabl          capable         capabl         
+  capacities      capac           capacity        capac          
+  caparison       caparison       capdv           capdv          
+  cape            cape            capel           capel          
+  capels          capel           caper           caper          
+  capers          caper           capet           capet          
+  caphis          caphi           capilet         capilet        
+  capitaine       capitain        capital         capit          
+  capite          capit           capitol         capitol        
+  capitulate      capitul         capocchia       capocchia      
+  capon           capon           capons          capon          
+  capp            capp            cappadocia      cappadocia     
+  capriccio       capriccio       capricious      caprici        
+  caps            cap             capt            capt           
+  captain         captain         captains        captain        
+  captainship     captainship     captious        captiou        
+  captivate       captiv          captivated      captiv         
+  captivates      captiv          captive         captiv         
+  captives        captiv          captivity       captiv         
+  captum          captum          capucius        capuciu        
+  capulet         capulet         capulets        capulet        
+  car             car             carack          carack         
+  caracks         carack          carat           carat          
+  caraways        carawai         carbonado       carbonado      
+  carbuncle       carbuncl        carbuncled      carbuncl       
+  carbuncles      carbuncl        carcanet        carcanet       
+  carcase         carcas          carcases        carcas         
+  carcass         carcass         carcasses       carcass        
+  card            card            cardecue        cardecu        
+  carded          card            carders         carder         
+  cardinal        cardin          cardinally      cardin         
+  cardinals       cardin          cardmaker       cardmak        
+  cards           card            carduus         carduu         
+  care            care            cared           care           
+  career          career          careers         career         
+  careful         care            carefully       carefulli      
+  careless        careless        carelessly      carelessli     
+  carelessness    careless        cares           care           
+  caret           caret           cargo           cargo          
+  carl            carl            carlisle        carlisl        
+  carlot          carlot          carman          carman         
+  carmen          carmen          carnal          carnal         
+  carnally        carnal          carnarvonshire  carnarvonshir  
+  carnation       carnat          carnations      carnat         
+  carol           carol           carous          carou          
+  carouse         carous          caroused        carous         
+  carouses        carous          carousing       carous         
+  carp            carp            carpenter       carpent        
+  carper          carper          carpet          carpet         
+  carpets         carpet          carping         carp           
+  carriage        carriag         carriages       carriag        
+  carried         carri           carrier         carrier        
+  carriers        carrier         carries         carri          
+  carrion         carrion         carrions        carrion        
+  carry           carri           carrying        carri          
+  cars            car             cart            cart           
+  carters         carter          carthage        carthag        
+  carts           cart            carv            carv           
+  carve           carv            carved          carv           
+  carver          carver          carves          carv           
+  carving         carv            cas             ca             
+  casa            casa            casaer          casaer         
+  casca           casca           case            case           
+  casement        casement        casements       casement       
+  cases           case            cash            cash           
+  cashier         cashier         casing          case           
+  cask            cask            casket          casket         
+  casketed        casket          caskets         casket         
+  casque          casqu           casques         casqu          
+  cassado         cassado         cassandra       cassandra      
+  cassibelan      cassibelan      cassio          cassio         
+  cassius         cassiu          cassocks        cassock        
+  cast            cast            castalion       castalion      
+  castaway        castawai        castaways       castawai       
+  casted          cast            caster          caster         
+  castigate       castig          castigation     castig         
+  castile         castil          castiliano      castiliano     
+  casting         cast            castle          castl          
+  castles         castl           casts           cast           
+  casual          casual          casually        casual         
+  casualties      casualti        casualty        casualti       
+  cat             cat             cataian         cataian        
+  catalogue       catalogu        cataplasm       cataplasm      
+  cataracts       cataract        catarrhs        catarrh        
+  catastrophe     catastroph      catch           catch          
+  catcher         catcher         catches         catch          
+  catching        catch           cate            cate           
+  catechising     catechis        catechism       catech         
+  catechize       catech          cater           cater          
+  caterpillars    caterpillar     caters          cater          
+  caterwauling    caterwaul       cates           cate           
+  catesby         catesbi         cathedral       cathedr        
+  catlike         catlik          catling         catl           
+  catlings        catl            cato            cato           
+  cats            cat             cattle          cattl          
+  caucasus        caucasu         caudle          caudl          
+  cauf            cauf            caught          caught         
+  cauldron        cauldron        caus            cau            
+  cause           caus            caused          caus           
+  causeless       causeless       causer          causer         
+  causes          caus            causest         causest        
+  causeth         causeth         cautel          cautel         
+  cautelous       cautel          cautels         cautel         
+  cauterizing     cauter          caution         caution        
+  cautions        caution         cavaleiro       cavaleiro      
+  cavalery        cavaleri        cavaliers       cavali         
+  cave            cave            cavern          cavern         
+  caverns         cavern          caves           cave           
+  caveto          caveto          caviary         caviari        
+  cavil           cavil           cavilling       cavil          
+  cawdor          cawdor          cawdron         cawdron        
+  cawing          caw             ce              ce             
+  ceas            cea             cease           ceas           
+  ceases          ceas            ceaseth         ceaseth        
+  cedar           cedar           cedars          cedar          
+  cedius          cediu           celebrate       celebr         
+  celebrated      celebr          celebrates      celebr         
+  celebration     celebr          celerity        celer          
+  celestial       celesti         celia           celia          
+  cell            cell            cellar          cellar         
+  cellarage       cellarag        celsa           celsa          
+  cement          cement          censer          censer         
+  censor          censor          censorinus      censorinu      
+  censur          censur          censure         censur         
+  censured        censur          censurers       censur         
+  censures        censur          censuring       censur         
+  centaur         centaur         centaurs        centaur        
+  centre          centr           cents           cent           
+  centuries       centuri         centurion       centurion      
+  centurions      centurion       century         centuri        
+  cerberus        cerberu         cerecloth       cerecloth      
+  cerements       cerement        ceremonial      ceremoni       
+  ceremonies      ceremoni        ceremonious     ceremoni       
+  ceremoniously   ceremoni        ceremony        ceremoni       
+  ceres           cere            cerns           cern           
+  certain         certain         certainer       certain        
+  certainly       certainli       certainties     certainti      
+  certainty       certainti       certes          cert           
+  certificate     certif          certified       certifi        
+  certifies       certifi         certify         certifi        
+  ces             ce              cesario         cesario        
+  cess            cess            cesse           cess           
+  cestern         cestern         cetera          cetera         
+  cette           cett            chaces          chace          
+  chaf            chaf            chafe           chafe          
+  chafed          chafe           chafes          chafe          
+  chaff           chaff           chaffless       chaffless      
+  chafing         chafe           chain           chain          
+  chains          chain           chair           chair          
+  chairs          chair           chalic          chalic         
+  chalice         chalic          chalices        chalic         
+  chalk           chalk           chalks          chalk          
+  chalky          chalki          challeng        challeng       
+  challenge       challeng        challenged      challeng       
+  challenger      challeng        challengers     challeng       
+  challenges      challeng        cham            cham           
+  chamber         chamber         chamberers      chamber        
+  chamberlain     chamberlain     chamberlains    chamberlain    
+  chambermaid     chambermaid     chambermaids    chambermaid    
+  chambers        chamber         chameleon       chameleon      
+  champ           champ           champagne       champagn       
+  champain        champain        champains       champain       
+  champion        champion        champions       champion       
+  chanc           chanc           chance          chanc          
+  chanced         chanc           chancellor      chancellor     
+  chances         chanc           chandler        chandler       
+  chang           chang           change          chang          
+  changeable      changeabl       changed         chang          
+  changeful       chang           changeling      changel        
+  changelings     changel         changer         changer        
+  changes         chang           changest        changest       
+  changing        chang           channel         channel        
+  channels        channel         chanson         chanson        
+  chant           chant           chanticleer     chanticl       
+  chanting        chant           chantries       chantri        
+  chantry         chantri         chants          chant          
+  chaos           chao            chap            chap           
+  chape           chape           chapel          chapel         
+  chapeless       chapeless       chapels         chapel         
+  chaplain        chaplain        chaplains       chaplain       
+  chapless        chapless        chaplet         chaplet        
+  chapmen         chapmen         chaps           chap           
+  chapter         chapter         character       charact        
+  charactered     charact         characterless   characterless  
+  characters      charact         charactery      characteri     
+  characts        charact         charbon         charbon        
+  chare           chare           chares          chare          
+  charg           charg           charge          charg          
+  charged         charg           chargeful       charg          
+  charges         charg           chargeth        chargeth       
+  charging        charg           chariest        chariest       
+  chariness       chari           charing         chare          
+  chariot         chariot         chariots        chariot        
+  charitable      charit          charitably      charit         
+  charities       chariti         charity         chariti        
+  charlemain      charlemain      charles         charl          
+  charm           charm           charmed         charm          
+  charmer         charmer         charmeth        charmeth       
+  charmian        charmian        charming        charm          
+  charmingly      charmingli      charms          charm          
+  charneco        charneco        charnel         charnel        
+  charolois       charoloi        charon          charon         
+  charter         charter         charters        charter        
+  chartreux       chartreux       chary           chari          
+  charybdis       charybdi        chas            cha            
+  chase           chase           chased          chase          
+  chaser          chaser          chaseth         chaseth        
+  chasing         chase           chaste          chast          
+  chastely        chast           chastis         chasti         
+  chastise        chastis         chastised       chastis        
+  chastisement    chastis         chastity        chastiti       
+  chat            chat            chatham         chatham        
+  chatillon       chatillon       chats           chat           
+  chatt           chatt           chattels        chattel        
+  chatter         chatter         chattering      chatter        
+  chattles        chattl          chaud           chaud          
+  chaunted        chaunt          chaw            chaw           
+  chawdron        chawdron        che             che            
+  cheap           cheap           cheapen         cheapen        
+  cheaper         cheaper         cheapest        cheapest       
+  cheaply         cheapli         cheapside       cheapsid       
+  cheat           cheat           cheated         cheat          
+  cheater         cheater         cheaters        cheater        
+  cheating        cheat           cheats          cheat          
+  check           check           checked         check          
+  checker         checker         checking        check          
+  checks          check           cheek           cheek          
+  cheeks          cheek           cheer           cheer          
+  cheered         cheer           cheerer         cheerer        
+  cheerful        cheer           cheerfully      cheerfulli     
+  cheering        cheer           cheerless       cheerless      
+  cheerly         cheerli         cheers          cheer          
+  cheese          chees           chequer         chequer        
+  cher            cher            cherish         cherish        
+  cherished       cherish         cherisher       cherish        
+  cherishes       cherish         cherishing      cherish        
+  cherries        cherri          cherry          cherri         
+  cherrypit       cherrypit       chertsey        chertsei       
+  cherub          cherub          cherubims       cherubim       
+  cherubin        cherubin        cherubins       cherubin       
+  cheshu          cheshu          chess           chess          
+  chest           chest           chester         chester        
+  chestnut        chestnut        chestnuts       chestnut       
+  chests          chest           chetas          cheta          
+  chev            chev            cheval          cheval         
+  chevalier       chevali         chevaliers      chevali        
+  cheveril        cheveril        chew            chew           
+  chewed          chew            chewet          chewet         
+  chewing         chew            chez            chez           
+  chi             chi             chick           chick          
+  chicken         chicken         chickens        chicken        
+  chicurmurco     chicurmurco     chid            chid           
+  chidden         chidden         chide           chide          
+  chiders         chider          chides          chide          
+  chiding         chide           chief           chief          
+  chiefest        chiefest        chiefly         chiefli        
+  chien           chien           child           child          
+  childed         child           childeric       childer        
+  childhood       childhood       childhoods      childhood      
+  childing        child           childish        childish       
+  childishness    childish        childlike       childlik       
+  childness       child           children        children       
+  chill           chill           chilling        chill          
+  chime           chime           chimes          chime          
+  chimney         chimnei         chimneypiece    chimneypiec    
+  chimneys        chimnei         chimurcho       chimurcho      
+  chin            chin            china           china          
+  chine           chine           chines          chine          
+  chink           chink           chinks          chink          
+  chins           chin            chipp           chipp          
+  chipper         chipper         chips           chip           
+  chiron          chiron          chirping        chirp          
+  chirrah         chirrah         chirurgeonly    chirurgeonli   
+  chisel          chisel          chitopher       chitoph        
+  chivalrous      chivalr         chivalry        chivalri       
+  choice          choic           choicely        choic          
+  choicest        choicest        choir           choir          
+  choirs          choir           chok            chok           
+  choke           choke           choked          choke          
+  chokes          choke           choking         choke          
+  choler          choler          choleric        choler         
+  cholers         choler          chollors        chollor        
+  choose          choos           chooser         chooser        
+  chooses         choos           chooseth        chooseth       
+  choosing        choos           chop            chop           
+  chopine         chopin          choplogic       choplog        
+  chopp           chopp           chopped         chop           
+  chopping        chop            choppy          choppi         
+  chops           chop            chopt           chopt          
+  chor            chor            choristers      chorist        
+  chorus          choru           chose           chose          
+  chosen          chosen          chough          chough         
+  choughs         chough          chrish          chrish         
+  christ          christ          christen        christen       
+  christendom     christendom     christendoms    christendom    
+  christening     christen        christenings    christen       
+  christian       christian       christianlike   christianlik   
+  christians      christian       christmas       christma       
+  christom        christom        christopher     christoph      
+  christophero    christophero    chronicle       chronicl       
+  chronicled      chronicl        chronicler      chronicl       
+  chroniclers     chronicl        chronicles      chronicl       
+  chrysolite      chrysolit       chuck           chuck          
+  chucks          chuck           chud            chud           
+  chuffs          chuff           church          church         
+  churches        church          churchman       churchman      
+  churchmen       churchmen       churchyard      churchyard     
+  churchyards     churchyard      churl           churl          
+  churlish        churlish        churlishly      churlishli     
+  churls          churl           churn           churn          
+  chus            chu             cicatrice       cicatric       
+  cicatrices      cicatric        cicely          cice           
+  cicero          cicero          ciceter         cicet          
+  ciel            ciel            ciitzens        ciitzen        
+  cilicia         cilicia         cimber          cimber         
+  cimmerian       cimmerian       cinable         cinabl         
+  cincture        cinctur         cinders         cinder         
+  cine            cine            cinna           cinna          
+  cinque          cinqu           cipher          cipher         
+  ciphers         cipher          circa           circa          
+  circe           circ            circle          circl          
+  circled         circl           circlets        circlet        
+  circling        circl           circuit         circuit        
+  circum          circum          circumcised     circumcis      
+  circumference   circumfer       circummur       circummur      
+  circumscrib     circumscrib     circumscribed   circumscrib    
+  circumscription circumscript    circumspect     circumspect    
+  circumstance    circumst        circumstanced   circumstanc    
+  circumstances   circumst        circumstantial  circumstanti   
+  circumvent      circumv         circumvention   circumvent     
+  cistern         cistern         citadel         citadel        
+  cital           cital           cite            cite           
+  cited           cite            cites           cite           
+  cities          citi            citing          cite           
+  citizen         citizen         citizens        citizen        
+  cittern         cittern         city            citi           
+  civet           civet           civil           civil          
+  civility        civil           civilly         civilli        
+  clack           clack           clad            clad           
+  claim           claim           claiming        claim          
+  claims          claim           clamb           clamb          
+  clamber         clamber         clammer         clammer        
+  clamor          clamor          clamorous       clamor         
+  clamors         clamor          clamour         clamour        
+  clamours        clamour         clang           clang          
+  clangor         clangor         clap            clap           
+  clapp           clapp           clapped         clap           
+  clapper         clapper         clapping        clap           
+  claps           clap            clare           clare          
+  clarence        clarenc         claret          claret         
+  claribel        claribel        clasp           clasp          
+  clasps          clasp           clatter         clatter        
+  claud           claud           claudio         claudio        
+  claudius        claudiu         clause          claus          
+  claw            claw            clawed          claw           
+  clawing         claw            claws           claw           
+  clay            clai            clays           clai           
+  clean           clean           cleanliest      cleanliest     
+  cleanly         cleanli         cleans          clean          
+  cleanse         cleans          cleansing       cleans         
+  clear           clear           clearer         clearer        
+  clearest        clearest        clearly         clearli        
+  clearness       clear           clears          clear          
+  cleave          cleav           cleaving        cleav          
+  clef            clef            cleft           cleft          
+  cleitus         cleitu          clemency        clemenc        
+  clement         clement         cleomenes       cleomen        
+  cleopatpa       cleopatpa       cleopatra       cleopatra      
+  clepeth         clepeth         clept           clept          
+  clerestories    clerestori      clergy          clergi         
+  clergyman       clergyman       clergymen       clergymen      
+  clerk           clerk           clerkly         clerkli        
+  clerks          clerk           clew            clew           
+  client          client          clients         client         
+  cliff           cliff           clifford        clifford       
+  cliffords       clifford        cliffs          cliff          
+  clifton         clifton         climate         climat         
+  climature       climatur        climb           climb          
+  climbed         climb           climber         climber        
+  climbeth        climbeth        climbing        climb          
+  climbs          climb           clime           clime          
+  cling           cling           clink           clink          
+  clinking        clink           clinquant       clinquant      
+  clip            clip            clipp           clipp          
+  clipper         clipper         clippeth        clippeth       
+  clipping        clip            clipt           clipt          
+  clitus          clitu           clo             clo            
+  cloak           cloak           cloakbag        cloakbag       
+  cloaks          cloak           clock           clock          
+  clocks          clock           clod            clod           
+  cloddy          cloddi          clodpole        clodpol        
+  clog            clog            clogging        clog           
+  clogs           clog            cloister        cloister       
+  cloistress      cloistress      cloquence       cloquenc       
+  clos            clo             close           close          
+  closed          close           closely         close          
+  closeness       close           closer          closer         
+  closes          close           closest         closest        
+  closet          closet          closing         close          
+  closure         closur          cloten          cloten         
+  clotens         cloten          cloth           cloth          
+  clothair        clothair        clotharius      clothariu      
+  clothe          cloth           clothes         cloth          
+  clothier        clothier        clothiers       clothier       
+  clothing        cloth           cloths          cloth          
+  clotpoles       clotpol         clotpoll        clotpol        
+  cloud           cloud           clouded         cloud          
+  cloudiness      cloudi          clouds          cloud          
+  cloudy          cloudi          clout           clout          
+  clouted         clout           clouts          clout          
+  cloven          cloven          clover          clover         
+  cloves          clove           clovest         clovest        
+  clowder         clowder         clown           clown          
+  clownish        clownish        clowns          clown          
+  cloy            cloi            cloyed          cloi           
+  cloying         cloi            cloyless        cloyless       
+  cloyment        cloyment        cloys           cloi           
+  club            club            clubs           club           
+  cluck           cluck           clung           clung          
+  clust           clust           clusters        cluster        
+  clutch          clutch          clyster         clyster        
+  cneius          cneiu           cnemies         cnemi          
+  co              co              coach           coach          
+  coaches         coach           coachmakers     coachmak       
+  coact           coact           coactive        coactiv        
+  coagulate       coagul          coal            coal           
+  coals           coal            coarse          coars          
+  coarsely        coars           coast           coast          
+  coasting        coast           coasts          coast          
+  coat            coat            coated          coat           
+  coats           coat            cobble          cobbl          
+  cobbled         cobbl           cobbler         cobbler        
+  cobham          cobham          cobloaf         cobloaf        
+  cobweb          cobweb          cobwebs         cobweb         
+  cock            cock            cockatrice      cockatric      
+  cockatrices     cockatric       cockle          cockl          
+  cockled         cockl           cockney         cocknei        
+  cockpit         cockpit         cocks           cock           
+  cocksure        cocksur         coctus          coctu          
+  cocytus         cocytu          cod             cod            
+  codding         cod             codling         codl           
+  codpiece        codpiec         codpieces       codpiec        
+  cods            cod             coelestibus     coelestibu     
+  coesar          coesar          coeur           coeur          
+  coffer          coffer          coffers         coffer         
+  coffin          coffin          coffins         coffin         
+  cog             cog             cogging         cog            
+  cogitation      cogit           cogitations     cogit          
+  cognition       cognit          cognizance      cogniz         
+  cogscomb        cogscomb        cohabitants     cohabit        
+  coher           coher           cohere          coher          
+  coherence       coher           coherent        coher          
+  cohorts         cohort          coif            coif           
+  coign           coign           coil            coil           
+  coin            coin            coinage         coinag         
+  coiner          coiner          coining         coin           
+  coins           coin            col             col            
+  colbrand        colbrand        colchos         colcho         
+  cold            cold            colder          colder         
+  coldest         coldest         coldly          coldli         
+  coldness        cold            coldspur        coldspur       
+  colebrook       colebrook       colic           colic          
+  collar          collar          collars         collar         
+  collateral      collater        colleagued      colleagu       
+  collect         collect         collected       collect        
+  collection      collect         college         colleg         
+  colleges        colleg          collied         colli          
+  collier         collier         colliers        collier        
+  collop          collop          collusion       collus         
+  colme           colm            colmekill       colmekil       
+  coloquintida    coloquintida    color           color          
+  colors          color           colossus        colossu        
+  colour          colour          colourable      colour         
+  coloured        colour          colouring       colour         
+  colours         colour          colt            colt           
+  colted          colt            colts           colt           
+  columbine       columbin        columbines      columbin       
+  colville        colvil          com             com            
+  comagene        comagen         comart          comart         
+  comb            comb            combat          combat         
+  combatant       combat          combatants      combat         
+  combated        combat          combating       combat         
+  combin          combin          combinate       combin         
+  combination     combin          combine         combin         
+  combined        combin          combless        combless       
+  combustion      combust         come            come           
+  comedian        comedian        comedians       comedian       
+  comedy          comedi          comeliness      comeli         
+  comely          come            comer           comer          
+  comers          comer           comes           come           
+  comest          comest          comet           comet          
+  cometh          cometh          comets          comet          
+  comfect         comfect         comfit          comfit         
+  comfits         comfit          comfort         comfort        
+  comfortable     comfort         comforted       comfort        
+  comforter       comfort         comforting      comfort        
+  comfortless     comfortless     comforts        comfort        
+  comic           comic           comical         comic          
+  coming          come            comings         come           
+  cominius        cominiu         comma           comma          
+  command         command         commande        command        
+  commanded       command         commander       command        
+  commanders      command         commanding      command        
+  commandment     command         commandments    command        
+  commands        command         comme           comm           
+  commenc         commenc         commence        commenc        
+  commenced       commenc         commencement    commenc        
+  commences       commenc         commencing      commenc        
+  commend         commend         commendable     commend        
+  commendation    commend         commendations   commend        
+  commended       commend         commending      commend        
+  commends        commend         comment         comment        
+  commentaries    commentari      commenting      comment        
+  comments        comment         commerce        commerc        
+  commingled      commingl        commiseration   commiser       
+  commission      commiss         commissioners   commission     
+  commissions     commiss         commit          commit         
+  commits         commit          committ         committ        
+  committed       commit          committing      commit         
+  commix          commix          commixed        commix         
+  commixtion      commixt         commixture      commixtur      
+  commodious      commodi         commodities     commod         
+  commodity       commod          common          common         
+  commonalty      commonalti      commoner        common         
+  commoners       common          commonly        commonli       
+  commons         common          commonweal      commonw        
+  commonwealth    commonwealth    commotion       commot         
+  commotions      commot          commune         commun         
+  communicat      communicat      communicate     commun         
+  communication   commun          communities     commun         
+  community       commun          comonty         comonti        
+  compact         compact         companies       compani        
+  companion       companion       companions      companion      
+  companionship   companionship   company         compani        
+  compar          compar          comparative     compar         
+  compare         compar          compared        compar         
+  comparing       compar          comparison      comparison     
+  comparisons     comparison      compartner      compartn       
+  compass         compass         compasses       compass        
+  compassing      compass         compassion      compass        
+  compassionate   compassion      compeers        compeer        
+  compel          compel          compell         compel         
+  compelled       compel          compelling      compel         
+  compels         compel          compensation    compens        
+  competence      compet          competency      compet         
+  competent       compet          competitor      competitor     
+  competitors     competitor      compil          compil         
+  compile         compil          compiled        compil         
+  complain        complain        complainer      complain       
+  complainest     complainest     complaining     complain       
+  complainings    complain        complains       complain       
+  complaint       complaint       complaints      complaint      
+  complement      complement      complements     complement     
+  complete        complet         complexion      complexion     
+  complexioned    complexion      complexions     complexion     
+  complices       complic         complies        compli         
+  compliment      compliment      complimental    compliment     
+  compliments     compliment      complot         complot        
+  complots        complot         complotted      complot        
+  comply          compli          compos          compo          
+  compose         compos          composed        compos         
+  composition     composit        compost         compost        
+  composture      compostur       composure       composur       
+  compound        compound        compounded      compound       
+  compounds       compound        comprehend      comprehend     
+  comprehended    comprehend      comprehends     comprehend     
+  compremises     compremis       compris         compri         
+  comprising      compris         compromis       compromi       
+  compromise      compromis       compt           compt          
+  comptible       comptibl        comptrollers    comptrol       
+  compulsatory    compulsatori    compulsion      compuls        
+  compulsive      compuls         compunctious    compuncti      
+  computation     comput          comrade         comrad         
+  comrades        comrad          comutual        comutu         
+  con             con             concave         concav         
+  concavities     concav          conceal         conceal        
+  concealed       conceal         concealing      conceal        
+  concealment     conceal         concealments    conceal        
+  conceals        conceal         conceit         conceit        
+  conceited       conceit         conceitless     conceitless    
+  conceits        conceit         conceiv         conceiv        
+  conceive        conceiv         conceived       conceiv        
+  conceives       conceiv         conceiving      conceiv        
+  conception      concept         conceptions     concept        
+  conceptious     concepti        concern         concern        
+  concernancy     concern         concerneth      concerneth     
+  concerning      concern         concernings     concern        
+  concerns        concern         conclave        conclav        
+  conclud         conclud         conclude        conclud        
+  concluded       conclud         concludes       conclud        
+  concluding      conclud         conclusion      conclus        
+  conclusions     conclus         concolinel      concolinel     
+  concord         concord         concubine       concubin       
+  concupiscible   concupisc       concupy         concupi        
+  concur          concur          concurring      concur         
+  concurs         concur          condemn         condemn        
+  condemnation    condemn         condemned       condemn        
+  condemning      condemn         condemns        condemn        
+  condescend      condescend      condign         condign        
+  condition       condit          conditionally   condition      
+  conditions      condit          condole         condol         
+  condolement     condol          condoling       condol         
+  conduce         conduc          conduct         conduct        
+  conducted       conduct         conducting      conduct        
+  conductor       conductor       conduit         conduit        
+  conduits        conduit         conected        conect         
+  coney           conei           confection      confect        
+  confectionary   confectionari   confections     confect        
+  confederacy     confederaci     confederate     confeder       
+  confederates    confeder        confer          confer         
+  conference      confer          conferr         conferr        
+  conferring      confer          confess         confess        
+  confessed       confess         confesses       confess        
+  confesseth      confesseth      confessing      confess        
+  confession      confess         confessions     confess        
+  confessor       confessor       confidence      confid         
+  confident       confid          confidently     confid         
+  confin          confin          confine         confin         
+  confined        confin          confineless     confineless    
+  confiners       confin          confines        confin         
+  confining       confin          confirm         confirm        
+  confirmation    confirm         confirmations   confirm        
+  confirmed       confirm         confirmer       confirm        
+  confirmers      confirm         confirming      confirm        
+  confirmities    confirm         confirms        confirm        
+  confiscate      confisc         confiscated     confisc        
+  confiscation    confisc         confixed        confix         
+  conflict        conflict        conflicting     conflict       
+  conflicts       conflict        confluence      confluenc      
+  conflux         conflux         conform         conform        
+  conformable     conform         confound        confound       
+  confounded      confound        confounding     confound       
+  confounds       confound        confront        confront       
+  confronted      confront        confus          confu          
+  confused        confus          confusedly      confusedli     
+  confusion       confus          confusions      confus         
+  confutation     confut          confutes        confut         
+  congeal         congeal         congealed       congeal        
+  congealment     congeal         congee          conge          
+  conger          conger          congest         congest        
+  congied         congi           congratulate    congratul      
+  congreeing      congre          congreeted      congreet       
+  congregate      congreg         congregated     congreg        
+  congregation    congreg         congregations   congreg        
+  congruent       congruent       congruing       congru         
+  conies          coni            conjectural     conjectur      
+  conjecture      conjectur       conjectures     conjectur      
+  conjoin         conjoin         conjoined       conjoin        
+  conjoins        conjoin         conjointly      conjointli     
+  conjunct        conjunct        conjunction     conjunct       
+  conjunctive     conjunct        conjur          conjur         
+  conjuration     conjur          conjurations    conjur         
+  conjure         conjur          conjured        conjur         
+  conjurer        conjur          conjurers       conjur         
+  conjures        conjur          conjuring       conjur         
+  conjuro         conjuro         conn            conn           
+  connected       connect         connive         conniv         
+  conqu           conqu           conquer         conquer        
+  conquered       conquer         conquering      conquer        
+  conqueror       conqueror       conquerors      conqueror      
+  conquers        conquer         conquest        conquest       
+  conquests       conquest        conquring       conqur         
+  conrade         conrad          cons            con            
+  consanguineous  consanguin      consanguinity   consanguin     
+  conscienc       conscienc       conscience      conscienc      
+  consciences     conscienc       conscionable    conscion       
+  consecrate      consecr         consecrated     consecr        
+  consecrations   consecr         consent         consent        
+  consented       consent         consenting      consent        
+  consents        consent         consequence     consequ        
+  consequences    consequ         consequently    consequ        
+  conserve        conserv         conserved       conserv        
+  conserves       conserv         consider        consid         
+  considerance    consider        considerate     consider       
+  consideration   consider        considerations  consider       
+  considered      consid          considering     consid         
+  considerings    consid          considers       consid         
+  consign         consign         consigning      consign        
+  consist         consist         consisteth      consisteth     
+  consisting      consist         consistory      consistori     
+  consists        consist         consolate       consol         
+  consolation     consol          consonancy      conson         
+  consonant       conson          consort         consort        
+  consorted       consort         consortest      consortest     
+  conspectuities  conspectu       conspir         conspir        
+  conspiracy      conspiraci      conspirant      conspir        
+  conspirator     conspir         conspirators    conspir        
+  conspire        conspir         conspired       conspir        
+  conspirers      conspir         conspires       conspir        
+  conspiring      conspir         constable       constabl       
+  constables      constabl        constance       constanc       
+  constancies     constanc        constancy       constanc       
+  constant        constant        constantine     constantin     
+  constantinople  constantinopl   constantly      constantli     
+  constellation   constel         constitution    constitut      
+  constrain       constrain       constrained     constrain      
+  constraineth    constraineth    constrains      constrain      
+  constraint      constraint      constring       constr         
+  construction    construct       construe        constru        
+  consul          consul          consuls         consul         
+  consulship      consulship      consulships     consulship     
+  consult         consult         consulting      consult        
+  consults        consult         consum          consum         
+  consume         consum          consumed        consum         
+  consumes        consum          consuming       consum         
+  consummate      consumm         consummation    consumm        
+  consumption     consumpt        consumptions    consumpt       
+  contagion       contagion       contagious      contagi        
+  contain         contain         containing      contain        
+  contains        contain         contaminate     contamin       
+  contaminated    contamin        contemn         contemn        
+  contemned       contemn         contemning      contemn        
+  contemns        contemn         contemplate     contempl       
+  contemplation   contempl        contemplative   contempl       
+  contempt        contempt        contemptible    contempt       
+  contempts       contempt        contemptuous    contemptu      
+  contemptuously  contemptu       contend         contend        
+  contended       contend         contending      contend        
+  contendon       contendon       content         content        
+  contenta        contenta        contented       content        
+  contenteth      contenteth      contention      content        
+  contentious     contenti        contentless     contentless    
+  contento        contento        contents        content        
+  contest         contest         contestation    contest        
+  continence      contin          continency      contin         
+  continent       contin          continents      contin         
+  continu         continu         continual       continu        
+  continually     continu         continuance     continu        
+  continuantly    continuantli    continuate      continu        
+  continue        continu         continued       continu        
+  continuer       continu         continues       continu        
+  continuing      continu         contract        contract       
+  contracted      contract        contracting     contract       
+  contraction     contract        contradict      contradict     
+  contradicted    contradict      contradiction   contradict     
+  contradicts     contradict      contraries      contrari       
+  contrarieties   contrarieti     contrariety     contrarieti    
+  contrarious     contrari        contrariously   contrari       
+  contrary        contrari        contre          contr          
+  contribution    contribut       contributors    contributor    
+  contrite        contrit         contriv         contriv        
+  contrive        contriv         contrived       contriv        
+  contriver       contriv         contrives       contriv        
+  contriving      contriv         control         control        
+  controll        control         controller      control        
+  controlling     control         controlment     control        
+  controls        control         controversy     controversi    
+  contumelious    contumeli       contumeliously  contumeli      
+  contumely       contum          contusions      contus         
+  convenience     conveni         conveniences    conveni        
+  conveniency     conveni         convenient      conveni        
+  conveniently    conveni         convented       convent        
+  conventicles    conventicl      convents        convent        
+  convers         conver          conversant      convers        
+  conversation    convers         conversations   convers        
+  converse        convers         conversed       convers        
+  converses       convers         conversing      convers        
+  conversion      convers         convert         convert        
+  converted       convert         convertest      convertest     
+  converting      convert         convertite      convertit      
+  convertites     convertit       converts        convert        
+  convey          convei          conveyance      convey         
+  conveyances     convey          conveyers       convey         
+  conveying       convei          convict         convict        
+  convicted       convict         convince        convinc        
+  convinced       convinc         convinces       convinc        
+  convive         conviv          convocation     convoc         
+  convoy          convoi          convulsions     convuls        
+  cony            coni            cook            cook           
+  cookery         cookeri         cooks           cook           
+  cool            cool            cooled          cool           
+  cooling         cool            cools           cool           
+  coop            coop            coops           coop           
+  cop             cop             copatain        copatain       
+  cope            cope            cophetua        cophetua       
+  copied          copi            copies          copi           
+  copious         copiou          copper          copper         
+  copperspur      copperspur      coppice         coppic         
+  copulation      copul           copulatives     copul          
+  copy            copi            cor             cor            
+  coragio         coragio         coral           coral          
+  coram           coram           corambus        corambu        
+  coranto         coranto         corantos        coranto        
+  corbo           corbo           cord            cord           
+  corded          cord            cordelia        cordelia       
+  cordial         cordial         cordis          cordi          
+  cords           cord            core            core           
+  corin           corin           corinth         corinth        
+  corinthian      corinthian      coriolanus      coriolanu      
+  corioli         corioli         cork            cork           
+  corky           corki           cormorant       cormor         
+  corn            corn            cornelia        cornelia       
+  cornelius       corneliu        corner          corner         
+  corners         corner          cornerstone     cornerston     
+  cornets         cornet          cornish         cornish        
+  corns           corn            cornuto         cornuto        
+  cornwall        cornwal         corollary       corollari      
+  coronal         coron           coronation      coron          
+  coronet         coronet         coronets        coronet        
+  corporal        corpor          corporals       corpor         
+  corporate       corpor          corpse          corps          
+  corpulent       corpul          correct         correct        
+  corrected       correct         correcting      correct        
+  correction      correct         correctioner    correction     
+  corrects        correct         correspondence  correspond     
+  correspondent   correspond      corresponding   correspond     
+  corresponsive   correspons      corrigible      corrig         
+  corrival        corriv          corrivals       corriv         
+  corroborate     corrobor        corrosive       corros         
+  corrupt         corrupt         corrupted       corrupt        
+  corrupter       corrupt         corrupters      corrupt        
+  corruptible     corrupt         corruptibly     corrupt        
+  corrupting      corrupt         corruption      corrupt        
+  corruptly       corruptli       corrupts        corrupt        
+  corse           cors            corses          cors           
+  corslet         corslet         cosmo           cosmo          
+  cost            cost            costard         costard        
+  costermongers   costermong      costlier        costlier       
+  costly          costli          costs           cost           
+  cot             cot             cote            cote           
+  coted           cote            cotsall         cotsal         
+  cotsole         cotsol          cotswold        cotswold       
+  cottage         cottag          cottages        cottag         
+  cotus           cotu            couch           couch          
+  couched         couch           couching        couch          
+  couchings       couch           coude           coud           
+  cough           cough           coughing        cough          
+  could           could           couldst         couldst        
+  coulter         coulter         council         council        
+  councillor      councillor      councils        council        
+  counsel         counsel         counsell        counsel        
+  counsellor      counsellor      counsellors     counsellor     
+  counselor       counselor       counselors      counselor      
+  counsels        counsel         count           count          
+  counted         count           countenanc      countenanc     
+  countenance     counten         countenances    counten        
+  counter         counter         counterchange   counterchang   
+  countercheck    countercheck    counterfeit     counterfeit    
+  counterfeited   counterfeit     counterfeiting  counterfeit    
+  counterfeitly   counterfeitli   counterfeits    counterfeit    
+  countermand     countermand     countermands    countermand    
+  countermines    countermin      counterpart     counterpart    
+  counterpoints   counterpoint    counterpois     counterpoi     
+  counterpoise    counterpois     counters        counter        
+  countervail     countervail     countess        countess       
+  countesses      countess        counties        counti         
+  counting        count           countless       countless      
+  countries       countri         countrv         countrv        
+  country         countri         countryman      countryman     
+  countrymen      countrymen      counts          count          
+  county          counti          couper          couper         
+  couple          coupl           coupled         coupl          
+  couplement      couplement      couples         coupl          
+  couplet         couplet         couplets        couplet        
+  cour            cour            courage         courag         
+  courageous      courag          courageously    courag         
+  courages        courag          courier         courier        
+  couriers        courier         couronne        couronn        
+  cours           cour            course          cours          
+  coursed         cours           courser         courser        
+  coursers        courser         courses         cours          
+  coursing        cours           court           court          
+  courted         court           courteous       courteou       
+  courteously     courteous       courtesan       courtesan      
+  courtesies      courtesi        courtesy        courtesi       
+  courtezan       courtezan       courtezans      courtezan      
+  courtier        courtier        courtiers       courtier       
+  courtlike       courtlik        courtly         courtli        
+  courtney        courtnei        courts          court          
+  courtship       courtship       cousin          cousin         
+  cousins         cousin          couterfeit      couterfeit     
+  coutume         coutum          covenant        coven          
+  covenants       coven           covent          covent         
+  coventry        coventri        cover           cover          
+  covered         cover           covering        cover          
+  coverlet        coverlet        covers          cover          
+  covert          covert          covertly        covertli       
+  coverture       covertur        covet           covet          
+  coveted         covet           coveting        covet          
+  covetings       covet           covetous        covet          
+  covetously      covet           covetousness    covet          
+  covets          covet           cow             cow            
+  coward          coward          cowarded        coward         
+  cowardice       cowardic        cowardly        cowardli       
+  cowards         coward          cowardship      cowardship     
+  cowish          cowish          cowl            cowl           
+  cowslip         cowslip         cowslips        cowslip        
+  cox             cox             coxcomb         coxcomb        
+  coxcombs        coxcomb         coy             coi            
+  coystrill       coystril        coz             coz            
+  cozen           cozen           cozenage        cozenag        
+  cozened         cozen           cozener         cozen          
+  cozeners        cozen           cozening        cozen          
+  coziers         cozier          crab            crab           
+  crabbed         crab            crabs           crab           
+  crack           crack           cracked         crack          
+  cracker         cracker         crackers        cracker        
+  cracking        crack           cracks          crack          
+  cradle          cradl           cradled         cradl          
+  cradles         cradl           craft           craft          
+  crafted         craft           craftied        crafti         
+  craftier        craftier        craftily        craftili       
+  crafts          craft           craftsmen       craftsmen      
+  crafty          crafti          cram            cram           
+  cramm           cramm           cramp           cramp          
+  cramps          cramp           crams           cram           
+  cranking        crank           cranks          crank          
+  cranmer         cranmer         crannied        cranni         
+  crannies        cranni          cranny          cranni         
+  crants          crant           crare           crare          
+  crash           crash           crassus         crassu         
+  crav            crav            crave           crave          
+  craved          crave           craven          craven         
+  cravens         craven          craves          crave          
+  craveth         craveth         craving         crave          
+  crawl           crawl           crawling        crawl          
+  crawls          crawl           craz            craz           
+  crazed          craze           crazy           crazi          
+  creaking        creak           cream           cream          
+  create          creat           created         creat          
+  creates         creat           creating        creat          
+  creation        creation        creator         creator        
+  creature        creatur         creatures       creatur        
+  credence        credenc         credent         credent        
+  credible        credibl         credit          credit         
+  creditor        creditor        creditors       creditor       
+  credo           credo           credulity       credul         
+  credulous       credul          creed           creed          
+  creek           creek           creeks          creek          
+  creep           creep           creeping        creep          
+  creeps          creep           crept           crept          
+  crescent        crescent        crescive        cresciv        
+  cressets        cresset         cressid         cressid        
+  cressida        cressida        cressids        cressid        
+  cressy          cressi          crest           crest          
+  crested         crest           crestfall       crestfal       
+  crestless       crestless       crests          crest          
+  cretan          cretan          crete           crete          
+  crevice         crevic          crew            crew           
+  crews           crew            crib            crib           
+  cribb           cribb           cribs           crib           
+  cricket         cricket         crickets        cricket        
+  cried           cri             criedst         criedst        
+  crier           crier           cries           cri            
+  criest          criest          crieth          crieth         
+  crime           crime           crimeful        crime          
+  crimeless       crimeless       crimes          crime          
+  criminal        crimin          crimson         crimson        
+  cringe          cring           cripple         crippl         
+  crisp           crisp           crisped         crisp          
+  crispian        crispian        crispianus      crispianu      
+  crispin         crispin         critic          critic         
+  critical        critic          critics         critic         
+  croak           croak           croaking        croak          
+  croaks          croak           crocodile       crocodil       
+  cromer          cromer          cromwell        cromwel        
+  crone           crone           crook           crook          
+  crookback       crookback       crooked         crook          
+  crooking        crook           crop            crop           
+  cropp           cropp           crosby          crosbi         
+  cross           cross           crossed         cross          
+  crosses         cross           crossest        crossest       
+  crossing        cross           crossings       cross          
+  crossly         crossli         crossness       cross          
+  crost           crost           crotchets       crotchet       
+  crouch          crouch          crouching       crouch         
+  crow            crow            crowd           crowd          
+  crowded         crowd           crowding        crowd          
+  crowds          crowd           crowflowers     crowflow       
+  crowing         crow            crowkeeper      crowkeep       
+  crown           crown           crowned         crown          
+  crowner         crowner         crownet         crownet        
+  crownets        crownet         crowning        crown          
+  crowns          crown           crows           crow           
+  crudy           crudi           cruel           cruel          
+  cruell          cruell          crueller        crueller       
+  cruelly         cruelli         cruels          cruel          
+  cruelty         cruelti         crum            crum           
+  crumble         crumbl          crumbs          crumb          
+  crupper         crupper         crusadoes       crusado        
+  crush           crush           crushed         crush          
+  crushest        crushest        crushing        crush          
+  crust           crust           crusts          crust          
+  crusty          crusti          crutch          crutch         
+  crutches        crutch          cry             cry            
+  crying          cry             crystal         crystal        
+  crystalline     crystallin      crystals        crystal        
+  cub             cub             cubbert         cubbert        
+  cubiculo        cubiculo        cubit           cubit          
+  cubs            cub             cuckold         cuckold        
+  cuckoldly       cuckoldli       cuckolds        cuckold        
+  cuckoo          cuckoo          cucullus        cucullu        
+  cudgel          cudgel          cudgeled        cudgel         
+  cudgell         cudgel          cudgelling      cudgel         
+  cudgels         cudgel          cue             cue            
+  cues            cue             cuff            cuff           
+  cuffs           cuff            cuique          cuiqu          
+  cull            cull            culling         cull           
+  cullion         cullion         cullionly       cullionli      
+  cullions        cullion         culpable        culpabl        
+  culverin        culverin        cum             cum            
+  cumber          cumber          cumberland      cumberland     
+  cunning         cun             cunningly       cunningli      
+  cunnings        cun             cuore           cuor           
+  cup             cup             cupbearer       cupbear        
+  cupboarding     cupboard        cupid           cupid          
+  cupids          cupid           cuppele         cuppel         
+  cups            cup             cur             cur            
+  curan           curan           curate          curat          
+  curb            curb            curbed          curb           
+  curbing         curb            curbs           curb           
+  curd            curd            curdied         curdi          
+  curds           curd            cure            cure           
+  cured           cure            cureless        cureless       
+  curer           curer           cures           cure           
+  curfew          curfew          curing          cure           
+  curio           curio           curiosity       curios         
+  curious         curiou          curiously       curious        
+  curl            curl            curled          curl           
+  curling         curl            curls           curl           
+  currance        curranc         currants        currant        
+  current         current         currents        current        
+  currish         currish         curry           curri          
+  curs            cur             curse           curs           
+  cursed          curs            curses          curs           
+  cursies         cursi           cursing         curs           
+  cursorary       cursorari       curst           curst          
+  curster         curster         curstest        curstest       
+  curstness       curst           cursy           cursi          
+  curtail         curtail         curtain         curtain        
+  curtains        curtain         curtal          curtal         
+  curtis          curti           curtle          curtl          
+  curtsied        curtsi          curtsies        curtsi         
+  curtsy          curtsi          curvet          curvet         
+  curvets         curvet          cushes          cush           
+  cushion         cushion         cushions        cushion        
+  custalorum      custalorum      custard         custard        
+  custody         custodi         custom          custom         
+  customary       customari       customed        custom         
+  customer        custom          customers       custom         
+  customs         custom          custure         custur         
+  cut             cut             cutler          cutler         
+  cutpurse        cutpurs         cutpurses       cutpurs        
+  cuts            cut             cutter          cutter         
+  cutting         cut             cuttle          cuttl          
+  cxsar           cxsar           cyclops         cyclop         
+  cydnus          cydnu           cygnet          cygnet         
+  cygnets         cygnet          cym             cym            
+  cymbals         cymbal          cymbeline       cymbelin       
+  cyme            cyme            cynic           cynic          
+  cynthia         cynthia         cypress         cypress        
+  cypriot         cypriot         cyprus          cypru          
+  cyrus           cyru            cytherea        cytherea       
+  d               d               dabbled         dabbl          
+  dace            dace            dad             dad            
+  daedalus        daedalu         daemon          daemon         
+  daff            daff            daffed          daf            
+  daffest         daffest         daffodils       daffodil       
+  dagger          dagger          daggers         dagger         
+  dagonet         dagonet         daily           daili          
+  daintier        daintier        dainties        dainti         
+  daintiest       daintiest       daintily        daintili       
+  daintiness      dainti          daintry         daintri        
+  dainty          dainti          daisied         daisi          
+  daisies         daisi           daisy           daisi          
+  dale            dale            dalliance       dallianc       
+  dallied         dalli           dallies         dalli          
+  dally           dalli           dallying        dalli          
+  dalmatians      dalmatian       dam             dam            
+  damage          damag           damascus        damascu        
+  damask          damask          damasked        damask         
+  dame            dame            dames           dame           
+  damm            damm            damn            damn           
+  damnable        damnabl         damnably        damnabl        
+  damnation       damnat          damned          damn           
+  damns           damn            damoiselle      damoisel       
+  damon           damon           damosella       damosella      
+  damp            damp            dams            dam            
+  damsel          damsel          damsons         damson         
+  dan             dan             danc            danc           
+  dance           danc            dancer          dancer         
+  dances          danc            dancing         danc           
+  dandle          dandl           dandy           dandi          
+  dane            dane            dang            dang           
+  danger          danger          dangerous       danger         
+  dangerously     danger          dangers         danger         
+  dangling        dangl           daniel          daniel         
+  danish          danish          dank            dank           
+  dankish         dankish         danskers        dansker        
+  daphne          daphn           dappled         dappl          
+  dapples         dappl           dar             dar            
+  dardan          dardan          dardanian       dardanian      
+  dardanius       dardaniu        dare            dare           
+  dared           dare            dareful         dare           
+  dares           dare            darest          darest         
+  daring          dare            darius          dariu          
+  dark            dark            darken          darken         
+  darkening       darken          darkens         darken         
+  darker          darker          darkest         darkest        
+  darkling        darkl           darkly          darkli         
+  darkness        dark            darling         darl           
+  darlings        darl            darnel          darnel         
+  darraign        darraign        dart            dart           
+  darted          dart            darter          darter         
+  dartford        dartford        darting         dart           
+  darts           dart            dash            dash           
+  dashes          dash            dashing         dash           
+  dastard         dastard         dastards        dastard        
+  dat             dat             datchet         datchet        
+  date            date            dated           date           
+  dateless        dateless        dates           date           
+  daub            daub            daughter        daughter       
+  daughters       daughter        daunt           daunt          
+  daunted         daunt           dauntless       dauntless      
+  dauphin         dauphin         daventry        daventri       
+  davy            davi            daw             daw            
+  dawn            dawn            dawning         dawn           
+  daws            daw             day             dai            
+  daylight        daylight        days            dai            
+  dazzle          dazzl           dazzled         dazzl          
+  dazzling        dazzl           de              de             
+  dead            dead            deadly          deadli         
+  deaf            deaf            deafing         deaf           
+  deafness        deaf            deafs           deaf           
+  deal            deal            dealer          dealer         
+  dealers         dealer          dealest         dealest        
+  dealing         deal            dealings        deal           
+  deals           deal            dealt           dealt          
+  dean            dean            deanery         deaneri        
+  dear            dear            dearer          dearer         
+  dearest         dearest         dearly          dearli         
+  dearness        dear            dears           dear           
+  dearth          dearth          dearths         dearth         
+  death           death           deathbed        deathb         
+  deathful        death           deaths          death          
+  deathsman       deathsman       deathsmen       deathsmen      
+  debarred        debar           debase          debas          
+  debate          debat           debated         debat          
+  debatement      debat           debateth        debateth       
+  debating        debat           debauch         debauch        
+  debile          debil           debility        debil          
+  debitor         debitor         debonair        debonair       
+  deborah         deborah         debosh          debosh         
+  debt            debt            debted          debt           
+  debtor          debtor          debtors         debtor         
+  debts           debt            debuty          debuti         
+  decay           decai           decayed         decai          
+  decayer         decay           decaying        decai          
+  decays          decai           deceas          decea          
+  decease         deceas          deceased        deceas         
+  deceit          deceit          deceitful       deceit         
+  deceits         deceit          deceiv          deceiv         
+  deceivable      deceiv          deceive         deceiv         
+  deceived        deceiv          deceiver        deceiv         
+  deceivers       deceiv          deceives        deceiv         
+  deceivest       deceivest       deceiveth       deceiveth      
+  deceiving       deceiv          december        decemb         
+  decent          decent          deceptious      decepti        
+  decerns         decern          decide          decid          
+  decides         decid           decimation      decim          
+  decipher        deciph          deciphers       deciph         
+  decision        decis           decius          deciu          
+  deck            deck            decking         deck           
+  decks           deck            deckt           deckt          
+  declare         declar          declares        declar         
+  declension      declens         declensions     declens        
+  declin          declin          decline         declin         
+  declined        declin          declines        declin         
+  declining       declin          decoct          decoct         
+  decorum         decorum         decreas         decrea         
+  decrease        decreas         decreasing      decreas        
+  decree          decre           decreed         decre          
+  decrees         decre           decrepit        decrepit       
+  dedicate        dedic           dedicated       dedic          
+  dedicates       dedic           dedication      dedic          
+  deed            deed            deedless        deedless       
+  deeds           deed            deem            deem           
+  deemed          deem            deep            deep           
+  deeper          deeper          deepest         deepest        
+  deeply          deepli          deeps           deep           
+  deepvow         deepvow         deer            deer           
+  deesse          deess           defac           defac          
+  deface          defac           defaced         defac          
+  defacer         defac           defacers        defac          
+  defacing        defac           defam           defam          
+  default         default         defeat          defeat         
+  defeated        defeat          defeats         defeat         
+  defeatures      defeatur        defect          defect         
+  defective       defect          defects         defect         
+  defence         defenc          defences        defenc         
+  defend          defend          defendant       defend         
+  defended        defend          defender        defend         
+  defenders       defend          defending       defend         
+  defends         defend          defense         defens         
+  defensible      defens          defensive       defens         
+  defer           defer           deferr          deferr         
+  defiance        defianc         deficient       defici         
+  defied          defi            defies          defi           
+  defil           defil           defile          defil          
+  defiler         defil           defiles         defil          
+  defiling        defil           define          defin          
+  definement      defin           definite        definit        
+  definitive      definit         definitively    definit        
+  deflow          deflow          deflower        deflow         
+  deflowered      deflow          deform          deform         
+  deformed        deform          deformities     deform         
+  deformity       deform          deftly          deftli         
+  defunct         defunct         defunction      defunct        
+  defuse          defus           defy            defi           
+  defying         defi            degenerate      degener        
+  degraded        degrad          degree          degre          
+  degrees         degre           deified         deifi          
+  deifying        deifi           deign           deign          
+  deigned         deign           deiphobus       deiphobu       
+  deities         deiti           deity           deiti          
+  deja            deja            deject          deject         
+  dejected        deject          delabreth       delabreth      
+  delay           delai           delayed         delai          
+  delaying        delai           delays          delai          
+  delectable      delect          deliberate      deliber        
+  delicate        delic           delicates       delic          
+  delicious       delici          deliciousness   delici         
+  delight         delight         delighted       delight        
+  delightful      delight         delights        delight        
+  delinquents     delinqu         deliv           deliv          
+  deliver         deliv           deliverance     deliver        
+  delivered       deliv           delivering      deliv          
+  delivers        deliv           delivery        deliveri       
+  delphos         delpho          deluded         delud          
+  deluding        delud           deluge          delug          
+  delve           delv            delver          delver         
+  delves          delv            demand          demand         
+  demanded        demand          demanding       demand         
+  demands         demand          demean          demean         
+  demeanor        demeanor        demeanour       demeanour      
+  demerits        demerit         demesnes        demesn         
+  demetrius       demetriu        demi            demi           
+  demigod         demigod         demise          demis          
+  demoiselles     demoisel        demon           demon          
+  demonstrable    demonstr        demonstrate     demonstr       
+  demonstrated    demonstr        demonstrating   demonstr       
+  demonstration   demonstr        demonstrative   demonstr       
+  demure          demur           demurely        demur          
+  demuring        demur           den             den            
+  denay           denai           deni            deni           
+  denial          denial          denials         denial         
+  denied          deni            denier          denier         
+  denies          deni            deniest         deniest        
+  denis           deni            denmark         denmark        
+  dennis          denni           denny           denni          
+  denote          denot           denoted         denot          
+  denotement      denot           denounc         denounc        
+  denounce        denounc         denouncing      denounc        
+  dens            den             denunciation    denunci        
+  deny            deni            denying         deni           
+  deo             deo             depart          depart         
+  departed        depart          departest       departest      
+  departing       depart          departure       departur       
+  depeche         depech          depend          depend         
+  dependant       depend          dependants      depend         
+  depended        depend          dependence      depend         
+  dependences     depend          dependency      depend         
+  dependent       depend          dependents      depend         
+  depender        depend          depending       depend         
+  depends         depend          deplore         deplor         
+  deploring       deplor          depopulate      depopul        
+  depos           depo            depose          depos          
+  deposed         depos           deposing        depos          
+  depositaries    depositari      deprav          deprav         
+  depravation     deprav          deprave         deprav         
+  depraved        deprav          depraves        deprav         
+  depress         depress         depriv          depriv         
+  deprive         depriv          depth           depth          
+  depths          depth           deputation      deput          
+  depute          deput           deputed         deput          
+  deputies        deputi          deputing        deput          
+  deputy          deputi          deracinate      deracin        
+  derby           derbi           dercetas        derceta        
+  dere            dere            derides         derid          
+  derision        deris           deriv           deriv          
+  derivation      deriv           derivative      deriv          
+  derive          deriv           derived         deriv          
+  derives         deriv           derogate        derog          
+  derogately      derog           derogation      derog          
+  des             de              desartless      desartless     
+  descant         descant         descend         descend        
+  descended       descend         descending      descend        
+  descends        descend         descension      descens        
+  descent         descent         descents        descent        
+  describe        describ         described       describ        
+  describes       describ         descried        descri         
+  description     descript        descriptions    descript       
+  descry          descri          desdemon        desdemon       
+  desdemona       desdemona       desert          desert         
+  deserts         desert          deserv          deserv         
+  deserve         deserv          deserved        deserv         
+  deservedly      deservedli      deserver        deserv         
+  deservers       deserv          deserves        deserv         
+  deservest       deservest       deserving       deserv         
+  deservings      deserv          design          design         
+  designment      design          designments     design         
+  designs         design          desir           desir          
+  desire          desir           desired         desir          
+  desirers        desir           desires         desir          
+  desirest        desirest        desiring        desir          
+  desirous        desir           desist          desist         
+  desk            desk            desolate        desol          
+  desolation      desol           desp            desp           
+  despair         despair         despairing      despair        
+  despairs        despair         despatch        despatch       
+  desperate       desper          desperately     desper         
+  desperation     desper          despis          despi          
+  despise         despis          despised        despis         
+  despiser        despis          despiseth       despiseth      
+  despising       despis          despite         despit         
+  despiteful      despit          despoiled       despoil        
+  dest            dest            destin          destin         
+  destined        destin          destinies       destini        
+  destiny         destini         destitute       destitut       
+  destroy         destroi         destroyed       destroi        
+  destroyer       destroy         destroyers      destroy        
+  destroying      destroi         destroys        destroi        
+  destruction     destruct        destructions    destruct       
+  det             det             detain          detain         
+  detains         detain          detect          detect         
+  detected        detect          detecting       detect         
+  detection       detect          detector        detector       
+  detects         detect          detention       detent         
+  determin        determin        determinate     determin       
+  determination   determin        determinations  determin       
+  determine       determin        determined      determin       
+  determines      determin        detest          detest         
+  detestable      detest          detested        detest         
+  detesting       detest          detests         detest         
+  detract         detract         detraction      detract        
+  detractions     detract         deucalion       deucalion      
+  deuce           deuc            deum            deum           
+  deux            deux            devant          devant         
+  devesting       devest          device          devic          
+  devices         devic           devil           devil          
+  devilish        devilish        devils          devil          
+  devis           devi            devise          devis          
+  devised         devis           devises         devis          
+  devising        devis           devoid          devoid         
+  devonshire      devonshir       devote          devot          
+  devoted         devot           devotion        devot          
+  devour          devour          devoured        devour         
+  devourers       devour          devouring       devour         
+  devours         devour          devout          devout         
+  devoutly        devoutli        dew             dew            
+  dewberries      dewberri        dewdrops        dewdrop        
+  dewlap          dewlap          dewlapp         dewlapp        
+  dews            dew             dewy            dewi           
+  dexter          dexter          dexteriously    dexteri        
+  dexterity       dexter          di              di             
+  diable          diabl           diablo          diablo         
+  diadem          diadem          dial            dial           
+  dialect         dialect         dialogue        dialogu        
+  dialogued       dialogu         dials           dial           
+  diameter        diamet          diamond         diamond        
+  diamonds        diamond         dian            dian           
+  diana           diana           diaper          diaper         
+  dibble          dibbl           dic             dic            
+  dice            dice            dicers          dicer          
+  dich            dich            dick            dick           
+  dickens         dicken          dickon          dickon         
+  dicky           dicki           dictator        dictat         
+  diction         diction         dictynna        dictynna       
+  did             did             diddle          diddl          
+  didest          didest          dido            dido           
+  didst           didst           die             die            
+  died            di              diedst          diedst         
+  dies            di              diest           diest          
+  diet            diet            dieted          diet           
+  dieter          dieter          dieu            dieu           
+  diff            diff            differ          differ         
+  difference      differ          differences     differ         
+  differency      differ          different       differ         
+  differing       differ          differs         differ         
+  difficile       difficil        difficult       difficult      
+  difficulties    difficulti      difficulty      difficulti     
+  diffidence      diffid          diffidences     diffid         
+  diffus          diffu           diffused        diffus         
+  diffusest       diffusest       dig             dig            
+  digest          digest          digested        digest         
+  digestion       digest          digestions      digest         
+  digg            digg            digging         dig            
+  dighton         dighton         dignified       dignifi        
+  dignifies       dignifi         dignify         dignifi        
+  dignities       digniti         dignity         digniti        
+  digress         digress         digressing      digress        
+  digression      digress         digs            dig            
+  digt            digt            dilate          dilat          
+  dilated         dilat           dilations       dilat          
+  dilatory        dilatori        dild            dild           
+  dildos          dildo           dilemma         dilemma        
+  dilemmas        dilemma         diligence       dilig          
+  diligent        dilig           diluculo        diluculo       
+  dim             dim             dimension       dimens         
+  dimensions      dimens          diminish        diminish       
+  diminishing     diminish        diminution      diminut        
+  diminutive      diminut         diminutives     diminut        
+  dimm            dimm            dimmed          dim            
+  dimming         dim             dimpled         dimpl          
+  dimples         dimpl           dims            dim            
+  din             din             dine            dine           
+  dined           dine            diner           diner          
+  dines           dine            ding            ding           
+  dining          dine            dinner          dinner         
+  dinners         dinner          dinnertime      dinnertim      
+  dint            dint            diomed          diom           
+  diomede         diomed          diomedes        diomed         
+  dion            dion            dip             dip            
+  dipp            dipp            dipping         dip            
+  dips            dip             dir             dir            
+  dire            dire            direct          direct         
+  directed        direct          directing       direct         
+  direction       direct          directions      direct         
+  directitude     directitud      directive       direct         
+  directly        directli        directs         direct         
+  direful         dire            direness        dire           
+  direst          direst          dirge           dirg           
+  dirges          dirg            dirt            dirt           
+  dirty           dirti           dis             di             
+  disability      disabl          disable         disabl         
+  disabled        disabl          disabling       disabl         
+  disadvantage    disadvantag     disagree        disagre        
+  disallow        disallow        disanimates     disanim        
+  disannul        disannul        disannuls       disannul       
+  disappointed    disappoint      disarm          disarm         
+  disarmed        disarm          disarmeth       disarmeth      
+  disarms         disarm          disaster        disast         
+  disasters       disast          disastrous      disastr        
+  disbench        disbench        disbranch       disbranch      
+  disburdened     disburden       disburs         disbur         
+  disburse        disburs         disbursed       disburs        
+  discandy        discandi        discandying     discandi       
+  discard         discard         discarded       discard        
+  discase         discas          discased        discas         
+  discern         discern         discerner       discern        
+  discerning      discern         discernings     discern        
+  discerns        discern         discharg        discharg       
+  discharge       discharg        discharged      discharg       
+  discharging     discharg        discipled       discipl        
+  disciples       discipl         disciplin       disciplin      
+  discipline      disciplin       disciplined     disciplin      
+  disciplines     disciplin       disclaim        disclaim       
+  disclaiming     disclaim        disclaims       disclaim       
+  disclos         disclo          disclose        disclos        
+  disclosed       disclos         discloses       disclos        
+  discolour       discolour       discoloured     discolour      
+  discolours      discolour       discomfit       discomfit      
+  discomfited     discomfit       discomfiture    discomfitur    
+  discomfort      discomfort      discomfortable  discomfort     
+  discommend      discommend      disconsolate    disconsol      
+  discontent      discont         discontented    discont        
+  discontentedly  discontentedli  discontenting   discont        
+  discontents     discont         discontinue     discontinu     
+  discontinued    discontinu      discord         discord        
+  discordant      discord         discords        discord        
+  discourse       discours        discoursed      discours       
+  discourser      discours        discourses      discours       
+  discoursive     discours        discourtesy     discourtesi    
+  discov          discov          discover        discov         
+  discovered      discov          discoverers     discover       
+  discoveries     discoveri       discovering     discov         
+  discovers       discov          discovery       discoveri      
+  discredit       discredit       discredited     discredit      
+  discredits      discredit       discreet        discreet       
+  discreetly      discreetli      discretion      discret        
+  discretions     discret         discuss         discuss        
+  disdain         disdain         disdained       disdain        
+  disdaineth      disdaineth      disdainful      disdain        
+  disdainfully    disdainfulli    disdaining      disdain        
+  disdains        disdain         disdnguish      disdnguish     
+  diseas          disea           disease         diseas         
+  diseased        diseas          diseases        diseas         
+  disedg          disedg          disembark       disembark      
+  disfigure       disfigur        disfigured      disfigur       
+  disfurnish      disfurnish      disgorge        disgorg        
+  disgrac         disgrac         disgrace        disgrac        
+  disgraced       disgrac         disgraceful     disgrac        
+  disgraces       disgrac         disgracing      disgrac        
+  disgracious     disgraci        disguis         disgui         
+  disguise        disguis         disguised       disguis        
+  disguiser       disguis         disguises       disguis        
+  disguising      disguis         dish            dish           
+  dishabited      dishabit        dishclout       dishclout      
+  dishearten      dishearten      disheartens     dishearten     
+  dishes          dish            dishonest       dishonest      
+  dishonestly     dishonestli     dishonesty      dishonesti     
+  dishonor        dishonor        dishonorable    dishonor       
+  dishonors       dishonor        dishonour       dishonour      
+  dishonourable   dishonour       dishonoured     dishonour      
+  dishonours      dishonour       disinherit      disinherit     
+  disinherited    disinherit      disjoin         disjoin        
+  disjoining      disjoin         disjoins        disjoin        
+  disjoint        disjoint        disjunction     disjunct       
+  dislik          dislik          dislike         dislik         
+  disliken        disliken        dislikes        dislik         
+  dislimns        dislimn         dislocate       disloc         
+  dislodg         dislodg         disloyal        disloy         
+  disloyalty      disloyalti      dismal          dismal         
+  dismantle       dismantl        dismantled      dismantl       
+  dismask         dismask         dismay          dismai         
+  dismayed        dismai          dismemb         dismemb        
+  dismember       dismemb         dismes          dism           
+  dismiss         dismiss         dismissed       dismiss        
+  dismissing      dismiss         dismission      dismiss        
+  dismount        dismount        dismounted      dismount       
+  disnatur        disnatur        disobedience    disobedi       
+  disobedient     disobedi        disobey         disobei        
+  disobeys        disobei         disorb          disorb         
+  disorder        disord          disordered      disord         
+  disorderly      disorderli      disorders       disord         
+  disparage       disparag        disparagement   disparag       
+  disparagements  disparag        dispark         dispark        
+  dispatch        dispatch        dispensation    dispens        
+  dispense        dispens         dispenses       dispens        
+  dispers         disper          disperse        dispers        
+  dispersed       dispers         dispersedly     dispersedli    
+  dispersing      dispers         dispiteous      dispit         
+  displac         displac         displace        displac        
+  displaced       displac         displant        displant       
+  displanting     displant        display         displai        
+  displayed       displai         displeas        displea        
+  displease       displeas        displeased      displeas       
+  displeasing     displeas        displeasure     displeasur     
+  displeasures    displeasur      disponge        dispong        
+  disport         disport         disports        disport        
+  dispos          dispo           dispose         dispos         
+  disposed        dispos          disposer        dispos         
+  disposing       dispos          disposition     disposit       
+  dispositions    disposit        dispossess      dispossess     
+  dispossessing   dispossess      disprais        disprai        
+  dispraise       disprais        dispraising     disprais       
+  dispraisingly   dispraisingli   dispropertied   disproperti    
+  disproportion   disproport      disproportioned disproport     
+  disprov         disprov         disprove        disprov        
+  disproved       disprov         dispursed       dispurs        
+  disputable      disput          disputation     disput         
+  disputations    disput          dispute         disput         
+  disputed        disput          disputes        disput         
+  disputing       disput          disquantity     disquant       
+  disquiet        disquiet        disquietly      disquietli     
+  disrelish       disrelish       disrobe         disrob         
+  disseat         disseat         dissemble       dissembl       
+  dissembled      dissembl        dissembler      dissembl       
+  dissemblers     dissembl        dissembling     dissembl       
+  dissembly       dissembl        dissension      dissens        
+  dissensions     dissens         dissentious     dissenti       
+  dissever        dissev          dissipation     dissip         
+  dissolute       dissolut        dissolutely     dissolut       
+  dissolution     dissolut        dissolutions    dissolut       
+  dissolv         dissolv         dissolve        dissolv        
+  dissolved       dissolv         dissolves       dissolv        
+  dissuade        dissuad         dissuaded       dissuad        
+  distaff         distaff         distaffs        distaff        
+  distain         distain         distains        distain        
+  distance        distanc         distant         distant        
+  distaste        distast         distasted       distast        
+  distasteful     distast         distemp         distemp        
+  distemper       distemp         distemperature  distemperatur  
+  distemperatures distemperatur   distempered     distemp        
+  distempering    distemp         distil          distil         
+  distill         distil          distillation    distil         
+  distilled       distil          distills        distil         
+  distilment      distil          distinct        distinct       
+  distinction     distinct        distinctly      distinctli     
+  distingue       distingu        distinguish     distinguish    
+  distinguishes   distinguish     distinguishment distinguish    
+  distract        distract        distracted      distract       
+  distractedly    distractedli    distraction     distract       
+  distractions    distract        distracts       distract       
+  distrain        distrain        distraught      distraught     
+  distress        distress        distressed      distress       
+  distresses      distress        distressful     distress       
+  distribute      distribut       distributed     distribut      
+  distribution    distribut       distrust        distrust       
+  distrustful     distrust        disturb         disturb        
+  disturbed       disturb         disturbers      disturb        
+  disturbing      disturb         disunite        disunit        
+  disvalued       disvalu         disvouch        disvouch       
+  dit             dit             ditch           ditch          
+  ditchers        ditcher         ditches         ditch          
+  dites           dite            ditties         ditti          
+  ditty           ditti           diurnal         diurnal        
+  div             div             dive            dive           
+  diver           diver           divers          diver          
+  diversely       divers          diversity       divers         
+  divert          divert          diverted        divert         
+  diverts         divert          dives           dive           
+  divest          divest          dividable       divid          
+  dividant        divid           divide          divid          
+  divided         divid           divides         divid          
+  divideth        divideth        divin           divin          
+  divination      divin           divine          divin          
+  divinely        divin           divineness      divin          
+  diviner         divin           divines         divin          
+  divinest        divinest        divining        divin          
+  divinity        divin           division        divis          
+  divisions       divis           divorc          divorc         
+  divorce         divorc          divorced        divorc         
+  divorcement     divorc          divorcing       divorc         
+  divulg          divulg          divulge         divulg         
+  divulged        divulg          divulging       divulg         
+  dizy            dizi            dizzy           dizzi          
+  do              do              doating         doat           
+  dobbin          dobbin          dock            dock           
+  docks           dock            doct            doct           
+  doctor          doctor          doctors         doctor         
+  doctrine        doctrin         document        document       
+  dodge           dodg            doe             doe            
+  doer            doer            doers           doer           
+  does            doe             doest           doest          
+  doff            doff            dog             dog            
+  dogberry        dogberri        dogfish         dogfish        
+  dogg            dogg            dogged          dog            
+  dogs            dog             doigts          doigt          
+  doing           do              doings          do             
+  doit            doit            doits           doit           
+  dolabella       dolabella       dole            dole           
+  doleful         dole            doll            doll           
+  dollar          dollar          dollars         dollar         
+  dolor           dolor           dolorous        dolor          
+  dolour          dolour          dolours         dolour         
+  dolphin         dolphin         dolt            dolt           
+  dolts           dolt            domestic        domest         
+  domestics       domest          dominance       domin          
+  dominations     domin           dominator       domin          
+  domine          domin           domineer        domin          
+  domineering     domin           dominical       domin          
+  dominion        dominion        dominions       dominion       
+  domitius        domitiu         dommelton       dommelton      
+  don             don             donalbain       donalbain      
+  donation        donat           donc            donc           
+  doncaster       doncast         done            done           
+  dong            dong            donn            donn           
+  donne           donn            donner          donner         
+  donnerai        donnerai        doom            doom           
+  doomsday        doomsdai        door            door           
+  doorkeeper      doorkeep        doors           door           
+  dorcas          dorca           doreus          doreu          
+  doricles        doricl          dormouse        dormous        
+  dorothy         dorothi         dorset          dorset         
+  dorsetshire     dorsetshir      dost            dost           
+  dotage          dotag           dotant          dotant         
+  dotard          dotard          dotards         dotard         
+  dote            dote            doted           dote           
+  doters          doter           dotes           dote           
+  doteth          doteth          doth            doth           
+  doting          dote            double          doubl          
+  doubled         doubl           doubleness      doubl          
+  doubler         doubler         doublet         doublet        
+  doublets        doublet         doubling        doubl          
+  doubly          doubli          doubt           doubt          
+  doubted         doubt           doubtful        doubt          
+  doubtfully      doubtfulli      doubting        doubt          
+  doubtless       doubtless       doubts          doubt          
+  doug            doug            dough           dough          
+  doughty         doughti         doughy          doughi         
+  douglas         dougla          dout            dout           
+  doute           dout            douts           dout           
+  dove            dove            dovehouse       dovehous       
+  dover           dover           doves           dove           
+  dow             dow             dowager         dowag          
+  dowdy           dowdi           dower           dower          
+  dowerless       dowerless       dowers          dower          
+  dowlas          dowla           dowle           dowl           
+  down            down            downfall        downfal        
+  downright       downright       downs           down           
+  downstairs      downstair       downtrod        downtrod       
+  downward        downward        downwards       downward       
+  downy           downi           dowries         dowri          
+  dowry           dowri           dowsabel        dowsabel       
+  doxy            doxi            dozed           doze           
+  dozen           dozen           dozens          dozen          
+  dozy            dozi            drab            drab           
+  drabbing        drab            drabs           drab           
+  drachma         drachma         drachmas        drachma        
+  draff           draff           drag            drag           
+  dragg           dragg           dragged         drag           
+  dragging        drag            dragon          dragon         
+  dragonish       dragonish       dragons         dragon         
+  drain           drain           drained         drain          
+  drains          drain           drake           drake          
+  dram            dram            dramatis        dramati        
+  drank           drank           draught         draught        
+  draughts        draught         drave           drave          
+  draw            draw            drawbridge      drawbridg      
+  drawer          drawer          drawers         drawer         
+  draweth         draweth         drawing         draw           
+  drawling        drawl           drawn           drawn          
+  draws           draw            drayman         drayman        
+  draymen         draymen         dread           dread          
+  dreaded         dread           dreadful        dread          
+  dreadfully      dreadfulli      dreading        dread          
+  dreads          dread           dream           dream          
+  dreamer         dreamer         dreamers        dreamer        
+  dreaming        dream           dreams          dream          
+  dreamt          dreamt          drearning       drearn         
+  dreary          dreari          dreg            dreg           
+  dregs           dreg            drench          drench         
+  drenched        drench          dress           dress          
+  dressed         dress           dresser         dresser        
+  dressing        dress           dressings       dress          
+  drest           drest           drew            drew           
+  dribbling       dribbl          dried           dri            
+  drier           drier           dries           dri            
+  drift           drift           drily           drili          
+  drink           drink           drinketh        drinketh       
+  drinking        drink           drinkings       drink          
+  drinks          drink           driv            driv           
+  drive           drive           drivelling      drivel         
+  driven          driven          drives          drive          
+  driveth         driveth         driving         drive          
+  drizzle         drizzl          drizzled        drizzl         
+  drizzles        drizzl          droit           droit          
+  drollery        drolleri        dromio          dromio         
+  dromios         dromio          drone           drone          
+  drones          drone           droop           droop          
+  droopeth        droopeth        drooping        droop          
+  droops          droop           drop            drop           
+  dropheir        dropheir        droplets        droplet        
+  dropp           dropp           dropper         dropper        
+  droppeth        droppeth        dropping        drop           
+  droppings       drop            drops           drop           
+  dropsied        dropsi          dropsies        dropsi         
+  dropsy          dropsi          dropt           dropt          
+  dross           dross           drossy          drossi         
+  drought         drought         drove           drove          
+  droven          droven          drovier         drovier        
+  drown           drown           drowned         drown          
+  drowning        drown           drowns          drown          
+  drows           drow            drowse          drows          
+  drowsily        drowsili        drowsiness      drowsi         
+  drowsy          drowsi          drudge          drudg          
+  drudgery        drudgeri        drudges         drudg          
+  drug            drug            drugg           drugg          
+  drugs           drug            drum            drum           
+  drumble         drumbl          drummer         drummer        
+  drumming        drum            drums           drum           
+  drunk           drunk           drunkard        drunkard       
+  drunkards       drunkard        drunken         drunken        
+  drunkenly       drunkenli       drunkenness     drunken        
+  dry             dry             dryness         dryness        
+  dst             dst             du              du             
+  dub             dub             dubb            dubb           
+  ducat           ducat           ducats          ducat          
+  ducdame         ducdam          duchess         duchess        
+  duchies         duchi           duchy           duchi          
+  duck            duck            ducking         duck           
+  ducks           duck            dudgeon         dudgeon        
+  due             due             duellist        duellist       
+  duello          duello          duer            duer           
+  dues            due             duff            duff           
+  dug             dug             dugs            dug            
+  duke            duke            dukedom         dukedom        
+  dukedoms        dukedom         dukes           duke           
+  dulcet          dulcet          dulche          dulch          
+  dull            dull            dullard         dullard        
+  duller          duller          dullest         dullest        
+  dulling         dull            dullness        dull           
+  dulls           dull            dully           dulli          
+  dulness         dul             duly            duli           
+  dumain          dumain          dumb            dumb           
+  dumbe           dumb            dumbly          dumbl          
+  dumbness        dumb            dump            dump           
+  dumps           dump            dun             dun            
+  duncan          duncan          dung            dung           
+  dungeon         dungeon         dungeons        dungeon        
+  dunghill        dunghil         dunghills       dunghil        
+  dungy           dungi           dunnest         dunnest        
+  dunsinane       dunsinan        dunsmore        dunsmor        
+  dunstable       dunstabl        dupp            dupp           
+  durance         duranc          during          dure           
+  durst           durst           dusky           duski          
+  dust            dust            dusted          dust           
+  dusty           dusti           dutch           dutch          
+  dutchman        dutchman        duteous         duteou         
+  duties          duti            dutiful         duti           
+  duty            duti            dwarf           dwarf          
+  dwarfish        dwarfish        dwell           dwell          
+  dwellers        dweller         dwelling        dwell          
+  dwells          dwell           dwelt           dwelt          
+  dwindle         dwindl          dy              dy             
+  dye             dye             dyed            dy             
+  dyer            dyer            dying           dy             
+  e               e               each            each           
+  eager           eager           eagerly         eagerli        
+  eagerness       eager           eagle           eagl           
+  eagles          eagl            eaning          ean            
+  eanlings        eanl            ear             ear            
+  earing          ear             earl            earl           
+  earldom         earldom         earlier         earlier        
+  earliest        earliest        earliness       earli          
+  earls           earl            early           earli          
+  earn            earn            earned          earn           
+  earnest         earnest         earnestly       earnestli      
+  earnestness     earnest         earns           earn           
+  ears            ear             earth           earth          
+  earthen         earthen         earthlier       earthlier      
+  earthly         earthli         earthquake      earthquak      
+  earthquakes     earthquak       earthy          earthi         
+  eas             ea              ease            eas            
+  eased           eas             easeful         eas            
+  eases           eas             easier          easier         
+  easiest         easiest         easiliest       easiliest      
+  easily          easili          easiness        easi           
+  easing          eas             east            east           
+  eastcheap       eastcheap       easter          easter         
+  eastern         eastern         eastward        eastward       
+  easy            easi            eat             eat            
+  eaten           eaten           eater           eater          
+  eaters          eater           eating          eat            
+  eats            eat             eaux            eaux           
+  eaves           eav             ebb             ebb            
+  ebbing          eb              ebbs            ebb            
+  ebon            ebon            ebony           eboni          
+  ebrew           ebrew           ecce            ecc            
+  echapper        echapp          echo            echo           
+  echoes          echo            eclips          eclip          
+  eclipse         eclips          eclipses        eclips         
+  ecolier         ecoli           ecoutez         ecoutez        
+  ecstacy         ecstaci         ecstasies       ecstasi        
+  ecstasy         ecstasi         ecus            ecu            
+  eden            eden            edg             edg            
+  edgar           edgar           edge            edg            
+  edged           edg             edgeless        edgeless       
+  edges           edg             edict           edict          
+  edicts          edict           edifice         edific         
+  edifices        edific          edified         edifi          
+  edifies         edifi           edition         edit           
+  edm             edm             edmund          edmund         
+  edmunds         edmund          edmundsbury     edmundsburi    
+  educate         educ            educated        educ           
+  education       educ            edward          edward         
+  eel             eel             eels            eel            
+  effect          effect          effected        effect         
+  effectless      effectless      effects         effect         
+  effectual       effectu         effectually     effectu        
+  effeminate      effemin         effigies        effigi         
+  effus           effu            effuse          effus          
+  effusion        effus           eftest          eftest         
+  egal            egal            egally          egal           
+  eget            eget            egeus           egeu           
+  egg             egg             eggs            egg            
+  eggshell        eggshel         eglamour        eglamour       
+  eglantine       eglantin        egma            egma           
+  ego             ego             egregious       egregi         
+  egregiously     egregi          egress          egress         
+  egypt           egypt           egyptian        egyptian       
+  egyptians       egyptian        eie             eie            
+  eight           eight           eighteen        eighteen       
+  eighth          eighth          eightpenny      eightpenni     
+  eighty          eighti          eisel           eisel          
+  either          either          eject           eject          
+  eke             ek              el              el             
+  elbe            elb             elbow           elbow          
+  elbows          elbow           eld             eld            
+  elder           elder           elders          elder          
+  eldest          eldest          eleanor         eleanor        
+  elect           elect           elected         elect          
+  election        elect           elegancy        eleg           
+  elegies         elegi           element         element        
+  elements        element         elephant        eleph          
+  elephants       eleph           elevated        elev           
+  eleven          eleven          eleventh        eleventh       
+  elf             elf             elflocks        elflock        
+  eliads          eliad           elinor          elinor         
+  elizabeth       elizabeth       ell             ell            
+  elle            ell             ellen           ellen          
+  elm             elm             eloquence       eloqu          
+  eloquent        eloqu           else            els            
+  elsewhere       elsewher        elsinore        elsinor        
+  eltham          eltham          elves           elv            
+  elvish          elvish          ely             eli            
+  elysium         elysium         em              em             
+  emballing       embal           embalm          embalm         
+  embalms         embalm          embark          embark         
+  embarked        embark          embarquements   embarqu        
+  embassade       embassad        embassage       embassag       
+  embassies       embassi         embassy         embassi        
+  embattailed     embattail       embattl         embattl        
+  embattle        embattl         embay           embai          
+  embellished     embellish       embers          ember          
+  emblaze         emblaz          emblem          emblem         
+  emblems         emblem          embodied        embodi         
+  embold          embold          emboldens       embolden       
+  emboss          emboss          embossed        emboss         
+  embounded       embound         embowel         embowel        
+  embowell        embowel         embrac          embrac         
+  embrace         embrac          embraced        embrac         
+  embracement     embrac          embracements    embrac         
+  embraces        embrac          embracing       embrac         
+  embrasures      embrasur        embroider       embroid        
+  embroidery      embroideri      emhracing       emhrac         
+  emilia          emilia          eminence        emin           
+  eminent         emin            eminently       emin           
+  emmanuel        emmanuel        emnity          emniti         
+  empale          empal           emperal         emper          
+  emperess        emperess        emperial        emperi         
+  emperor         emperor         empery          emperi         
+  emphasis        emphasi         empire          empir          
+  empirics        empir           empiricutic     empiricut      
+  empleached      empleach        employ          emploi         
+  employed        emploi          employer        employ         
+  employment      employ          employments     employ         
+  empoison        empoison        empress         empress        
+  emptied         empti           emptier         emptier        
+  empties         empti           emptiness       empti          
+  empty           empti           emptying        empti          
+  emulate         emul            emulation       emul           
+  emulations      emul            emulator        emul           
+  emulous         emul            en              en             
+  enact           enact           enacted         enact          
+  enacts          enact           enactures       enactur        
+  enamell         enamel          enamelled       enamel         
+  enamour         enamour         enamoured       enamour        
+  enanmour        enanmour        encamp          encamp         
+  encamped        encamp          encave          encav          
+  enceladus       enceladu        enchaf          enchaf         
+  enchafed        enchaf          enchant         enchant        
+  enchanted       enchant         enchanting      enchant        
+  enchantingly    enchantingli    enchantment     enchant        
+  enchantress     enchantress     enchants        enchant        
+  enchas          encha           encircle        encircl        
+  encircled       encircl         enclos          enclo          
+  enclose         enclos          enclosed        enclos         
+  encloses        enclos          encloseth       encloseth      
+  enclosing       enclos          enclouded       encloud        
+  encompass       encompass       encompassed     encompass      
+  encompasseth    encompasseth    encompassment   encompass      
+  encore          encor           encorporal      encorpor       
+  encount         encount         encounter       encount        
+  encountered     encount         encounters      encount        
+  encourage       encourag        encouraged      encourag       
+  encouragement   encourag        encrimsoned     encrimson      
+  encroaching     encroach        encumb          encumb         
+  end             end             endamage        endamag        
+  endamagement    endamag         endanger        endang         
+  endart          endart          endear          endear         
+  endeared        endear          endeavour       endeavour      
+  endeavours      endeavour       ended           end            
+  ender           ender           ending          end            
+  endings         end             endite          endit          
+  endless         endless         endow           endow          
+  endowed         endow           endowments      endow          
+  endows          endow           ends            end            
+  endu            endu            endue           endu           
+  endur           endur           endurance       endur          
+  endure          endur           endured         endur          
+  endures         endur           enduring        endur          
+  endymion        endymion        eneas           enea           
+  enemies         enemi           enemy           enemi          
+  enernies        enerni          enew            enew           
+  enfeebled       enfeebl         enfeebles       enfeebl        
+  enfeoff         enfeoff         enfetter        enfett         
+  enfoldings      enfold          enforc          enforc         
+  enforce         enforc          enforced        enforc         
+  enforcedly      enforcedli      enforcement     enforc         
+  enforces        enforc          enforcest       enforcest      
+  enfranched      enfranch        enfranchis      enfranchi      
+  enfranchise     enfranchis      enfranchised    enfranchis     
+  enfranchisement enfranchis      enfreed         enfre          
+  enfreedoming    enfreedom       engag           engag          
+  engage          engag           engaged         engag          
+  engagements     engag           engaging        engag          
+  engaol          engaol          engend          engend         
+  engender        engend          engenders       engend         
+  engilds         engild          engine          engin          
+  engineer        engin           enginer         engin          
+  engines         engin           engirt          engirt         
+  england         england         english         english        
+  englishman      englishman      englishmen      englishmen     
+  engluts         englut          englutted       englut         
+  engraffed       engraf          engraft         engraft        
+  engrafted       engraft         engrav          engrav         
+  engrave         engrav          engross         engross        
+  engrossed       engross         engrossest      engrossest     
+  engrossing      engross         engrossments    engross        
+  enguard         enguard         enigma          enigma         
+  enigmatical     enigmat         enjoin          enjoin         
+  enjoined        enjoin          enjoy           enjoi          
+  enjoyed         enjoi           enjoyer         enjoy          
+  enjoying        enjoi           enjoys          enjoi          
+  enkindle        enkindl         enkindled       enkindl        
+  enlard          enlard          enlarg          enlarg         
+  enlarge         enlarg          enlarged        enlarg         
+  enlargement     enlarg          enlargeth       enlargeth      
+  enlighten       enlighten       enlink          enlink         
+  enmesh          enmesh          enmities        enmiti         
+  enmity          enmiti          ennoble         ennobl         
+  ennobled        ennobl          enobarb         enobarb        
+  enobarbus       enobarbu        enon            enon           
+  enormity        enorm           enormous        enorm          
+  enough          enough          enow            enow           
+  enpatron        enpatron        enpierced       enpierc        
+  enquir          enquir          enquire         enquir         
+  enquired        enquir          enrag           enrag          
+  enrage          enrag           enraged         enrag          
+  enrages         enrag           enrank          enrank         
+  enrapt          enrapt          enrich          enrich         
+  enriched        enrich          enriches        enrich         
+  enridged        enridg          enrings         enr            
+  enrob           enrob           enrobe          enrob          
+  enroll          enrol           enrolled        enrol          
+  enrooted        enroot          enrounded       enround        
+  enschedul       enschedul       ensconce        ensconc        
+  ensconcing      ensconc         enseamed        enseam         
+  ensear          ensear          enseigne        enseign        
+  enseignez       enseignez       ensemble        ensembl        
+  enshelter       enshelt         enshielded      enshield       
+  enshrines       enshrin         ensign          ensign         
+  ensigns         ensign          enskied         enski          
+  ensman          ensman          ensnare         ensnar         
+  ensnared        ensnar          ensnareth       ensnareth      
+  ensteep         ensteep         ensu            ensu           
+  ensue           ensu            ensued          ensu           
+  ensues          ensu            ensuing         ensu           
+  enswathed       enswath         ent             ent            
+  entail          entail          entame          entam          
+  entangled       entangl         entangles       entangl        
+  entendre        entendr         enter           enter          
+  entered         enter           entering        enter          
+  enterprise      enterpris       enterprises     enterpris      
+  enters          enter           entertain       entertain      
+  entertained     entertain       entertainer     entertain      
+  entertaining    entertain       entertainment   entertain      
+  entertainments  entertain       enthrall        enthral        
+  enthralled      enthral         enthron         enthron        
+  enthroned       enthron         entice          entic          
+  enticements     entic           enticing        entic          
+  entire          entir           entirely        entir          
+  entitle         entitl          entitled        entitl         
+  entitling       entitl          entomb          entomb         
+  entombed        entomb          entrails        entrail        
+  entrance        entranc         entrances       entranc        
+  entrap          entrap          entrapp         entrapp        
+  entre           entr            entreat         entreat        
+  entreated       entreat         entreaties      entreati       
+  entreating      entreat         entreatments    entreat        
+  entreats        entreat         entreaty        entreati       
+  entrench        entrench        entry           entri          
+  entwist         entwist         envelop         envelop        
+  envenom         envenom         envenomed       envenom        
+  envenoms        envenom         envied          envi           
+  envies          envi            envious         enviou         
+  enviously       envious         environ         environ        
+  environed       environ         envoy           envoi          
+  envy            envi            envying         envi           
+  enwheel         enwheel         enwombed        enwomb         
+  enwraps         enwrap          ephesian        ephesian       
+  ephesians       ephesian        ephesus         ephesu         
+  epicure         epicur          epicurean       epicurean      
+  epicures        epicur          epicurism       epicur         
+  epicurus        epicuru         epidamnum       epidamnum      
+  epidaurus       epidauru        epigram         epigram        
+  epilepsy        epilepsi        epileptic       epilept        
+  epilogue        epilogu         epilogues       epilogu        
+  epistles        epistl          epistrophus     epistrophu     
+  epitaph         epitaph         epitaphs        epitaph        
+  epithet         epithet         epitheton       epitheton      
+  epithets        epithet         epitome         epitom         
+  equal           equal           equalities      equal          
+  equality        equal           equall          equal          
+  equally         equal           equalness       equal          
+  equals          equal           equinoctial     equinocti      
+  equinox         equinox         equipage        equipag        
+  equity          equiti          equivocal       equivoc        
+  equivocate      equivoc         equivocates     equivoc        
+  equivocation    equivoc         equivocator     equivoc        
+  er              er              erbear          erbear         
+  erbearing       erbear          erbears         erbear         
+  erbeat          erbeat          erblows         erblow         
+  erboard         erboard         erborne         erborn         
+  ercame          ercam           ercast          ercast         
+  ercharg         ercharg         ercharged       ercharg        
+  ercharging      ercharg         ercles          ercl           
+  ercome          ercom           ercover         ercov          
+  ercrows         ercrow          erdoing         erdo           
+  ere             er              erebus          erebu          
+  erect           erect           erected         erect          
+  erecting        erect           erection        erect          
+  erects          erect           erewhile        erewhil        
+  erflourish      erflourish      erflow          erflow         
+  erflowing       erflow          erflows         erflow         
+  erfraught       erfraught       erga            erga           
+  ergalled        ergal           erglanced       erglanc        
+  ergo            ergo            ergone          ergon          
+  ergrow          ergrow          ergrown         ergrown        
+  ergrowth        ergrowth        erhang          erhang         
+  erhanging       erhang          erhasty         erhasti        
+  erhear          erhear          erheard         erheard        
+  eringoes        eringo          erjoy           erjoi          
+  erleap          erleap          erleaps         erleap         
+  erleavens       erleaven        erlook          erlook         
+  erlooking       erlook          ermaster        ermast         
+  ermengare       ermengar        ermount         ermount        
+  ern             ern             ernight         ernight        
+  eros            ero             erpaid          erpaid         
+  erparted        erpart          erpast          erpast         
+  erpays          erpai           erpeer          erpeer         
+  erperch         erperch         erpicturing     erpictur       
+  erpingham       erpingham       erposting       erpost         
+  erpow           erpow           erpress         erpress        
+  erpressed       erpress         err             err            
+  errand          errand          errands         errand         
+  errant          errant          errate          errat          
+  erraught        erraught        erreaches       erreach        
+  erred           er              errest          errest         
+  erring          er              erroneous       erron          
+  error           error           errors          error          
+  errs            err             errule          errul          
+  errun           errun           erset           erset          
+  ershade         ershad          ershades        ershad         
+  ershine         ershin          ershot          ershot         
+  ersized         ersiz           erskip          erskip         
+  erslips         erslip          erspreads       erspread       
+  erst            erst            erstare         erstar         
+  erstep          erstep          erstunk         erstunk        
+  ersway          erswai          ersways         erswai         
+  erswell         erswel          erta            erta           
+  ertake          ertak           erteemed        erteem         
+  erthrow         erthrow         erthrown        erthrown       
+  erthrows        erthrow         ertook          ertook         
+  ertop           ertop           ertopping       ertop          
+  ertrip          ertrip          erturn          erturn         
+  erudition       erudit          eruption        erupt          
+  eruptions       erupt           ervalues        ervalu         
+  erwalk          erwalk          erwatch         erwatch        
+  erween          erween          erweens         erween         
+  erweigh         erweigh         erweighs        erweigh        
+  erwhelm         erwhelm         erwhelmed       erwhelm        
+  erworn          erworn          es              es             
+  escalus         escalu          escap           escap          
+  escape          escap           escaped         escap          
+  escapes         escap           eschew          eschew         
+  escoted         escot           esill           esil           
+  especial        especi          especially      especi         
+  esperance       esper           espials         espial         
+  espied          espi            espies          espi           
+  espous          espou           espouse         espous         
+  espy            espi            esquire         esquir         
+  esquires        esquir          essay           essai          
+  essays          essai           essence         essenc         
+  essential       essenti         essentially     essenti        
+  esses           ess             essex           essex          
+  est             est             establish       establish      
+  established     establish       estate          estat          
+  estates         estat           esteem          esteem         
+  esteemed        esteem          esteemeth       esteemeth      
+  esteeming       esteem          esteems         esteem         
+  estimable       estim           estimate        estim          
+  estimation      estim           estimations     estim          
+  estime          estim           estranged       estrang        
+  estridge        estridg         estridges       estridg        
+  et              et              etc             etc            
+  etceteras       etcetera        ete             et             
+  eternal         etern           eternally       etern          
+  eterne          etern           eternity        etern          
+  eterniz         eterniz         etes            et             
+  ethiop          ethiop          ethiope         ethiop         
+  ethiopes        ethiop          ethiopian       ethiopian      
+  etna            etna            eton            eton           
+  etre            etr             eunuch          eunuch         
+  eunuchs         eunuch          euphrates       euphrat        
+  euphronius      euphroniu       euriphile       euriphil       
+  europa          europa          europe          europ          
+  ev              ev              evade           evad           
+  evades          evad            evans           evan           
+  evasion         evas            evasions        evas           
+  eve             ev              even            even           
+  evening         even            evenly          evenli         
+  event           event           eventful        event          
+  events          event           ever            ever           
+  everlasting     everlast        everlastingly   everlastingli  
+  evermore        evermor         every           everi          
+  everyone        everyon         everything      everyth        
+  everywhere      everywher       evidence        evid           
+  evidences       evid            evident         evid           
+  evil            evil            evilly          evilli         
+  evils           evil            evitate         evit           
+  ewe             ew              ewer            ewer           
+  ewers           ewer            ewes            ew             
+  exact           exact           exacted         exact          
+  exactest        exactest        exacting        exact          
+  exaction        exact           exactions       exact          
+  exactly         exactli         exacts          exact          
+  exalt           exalt           exalted         exalt          
+  examin          examin          examination     examin         
+  examinations    examin          examine         examin         
+  examined        examin          examines        examin         
+  exampl          exampl          example         exampl         
+  exampled        exampl          examples        exampl         
+  exasperate      exasper         exasperates     exasper        
+  exceed          exce            exceeded        exceed         
+  exceedeth       exceedeth       exceeding       exceed         
+  exceedingly     exceedingli     exceeds         exce           
+  excel           excel           excelled        excel          
+  excellence      excel           excellencies    excel          
+  excellency      excel           excellent       excel          
+  excellently     excel           excelling       excel          
+  excels          excel           except          except         
+  excepted        except          excepting       except         
+  exception       except          exceptions      except         
+  exceptless      exceptless      excess          excess         
+  excessive       excess          exchang         exchang        
+  exchange        exchang         exchanged       exchang        
+  exchequer       exchequ         exchequers      exchequ        
+  excite          excit           excited         excit          
+  excitements     excit           excites         excit          
+  exclaim         exclaim         exclaims        exclaim        
+  exclamation     exclam          exclamations    exclam         
+  excludes        exclud          excommunicate   excommun       
+  excommunication excommun        excrement       excrement      
+  excrements      excrement       excursion       excurs         
+  excursions      excurs          excus           excu           
+  excusable       excus           excuse          excus          
+  excused         excus           excuses         excus          
+  excusez         excusez         excusing        excus          
+  execrable       execr           execrations     execr          
+  execute         execut          executed        execut         
+  executing       execut          execution       execut         
+  executioner     execution       executioners    execution      
+  executor        executor        executors       executor       
+  exempt          exempt          exempted        exempt         
+  exequies        exequi          exercise        exercis        
+  exercises       exercis         exeter          exet           
+  exeunt          exeunt          exhal           exhal          
+  exhalation      exhal           exhalations     exhal          
+  exhale          exhal           exhales         exhal          
+  exhaust         exhaust         exhibit         exhibit        
+  exhibiters      exhibit         exhibition      exhibit        
+  exhort          exhort          exhortation     exhort         
+  exigent         exig            exil            exil           
+  exile           exil            exiled          exil           
+  exion           exion           exist           exist          
+  exists          exist           exit            exit           
+  exits           exit            exorciser       exorcis        
+  exorcisms       exorc           exorcist        exorcist       
+  expect          expect          expectance      expect         
+  expectancy      expect          expectation     expect         
+  expectations    expect          expected        expect         
+  expecters       expect          expecting       expect         
+  expects         expect          expedience      expedi         
+  expedient       expedi          expediently     expedi         
+  expedition      expedit         expeditious     expediti       
+  expel           expel           expell          expel          
+  expelling       expel           expels          expel          
+  expend          expend          expense         expens         
+  expenses        expens          experienc       experienc      
+  experience      experi          experiences     experi         
+  experiment      experi          experimental    experiment     
+  experiments     experi          expert          expert         
+  expertness      expert          expiate         expiat         
+  expiation       expiat          expir           expir          
+  expiration      expir           expire          expir          
+  expired         expir           expires         expir          
+  expiring        expir           explication     explic         
+  exploit         exploit         exploits        exploit        
+  expos           expo            expose          expos          
+  exposing        expos           exposition      exposit        
+  expositor       expositor       expostulate     expostul       
+  expostulation   expostul        exposture       expostur       
+  exposure        exposur         expound         expound        
+  expounded       expound         express         express        
+  expressed       express         expresseth      expresseth     
+  expressing      express         expressive      express        
+  expressly       expressli       expressure      expressur      
+  expuls          expul           expulsion       expuls         
+  exquisite       exquisit        exsufflicate    exsuffl        
+  extant          extant          extemporal      extempor       
+  extemporally    extempor        extempore       extempor       
+  extend          extend          extended        extend         
+  extends         extend          extent          extent         
+  extenuate       extenu          extenuated      extenu         
+  extenuates      extenu          extenuation     extenu         
+  exterior        exterior        exteriorly      exteriorli     
+  exteriors       exterior        extermin        extermin       
+  extern          extern          external        extern         
+  extinct         extinct         extincted       extinct        
+  extincture      extinctur       extinguish      extinguish     
+  extirp          extirp          extirpate       extirp         
+  extirped        extirp          extol           extol          
+  extoll          extol           extolment       extol          
+  exton           exton           extort          extort         
+  extorted        extort          extortion       extort         
+  extortions      extort          extra           extra          
+  extract         extract         extracted       extract        
+  extracting      extract         extraordinarily extraordinarili
+  extraordinary   extraordinari   extraught       extraught      
+  extravagancy    extravag        extravagant     extravag       
+  extreme         extrem          extremely       extrem         
+  extremes        extrem          extremest       extremest      
+  extremities     extrem          extremity       extrem         
+  exuent          exuent          exult           exult          
+  exultation      exult           ey              ey             
+  eyas            eya             eyases          eyas           
+  eye             ey              eyeball         eyebal         
+  eyeballs        eyebal          eyebrow         eyebrow        
+  eyebrows        eyebrow         eyed            ei             
+  eyeless         eyeless         eyelid          eyelid         
+  eyelids         eyelid          eyes            ey             
+  eyesight        eyesight        eyestrings      eyestr         
+  eying           ei              eyne            eyn            
+  eyrie           eyri            fa              fa             
+  fabian          fabian          fable           fabl           
+  fables          fabl            fabric          fabric         
+  fabulous        fabul           fac             fac            
+  face            face            faced           face           
+  facere          facer           faces           face           
+  faciant         faciant         facile          facil          
+  facility        facil           facinerious     facineri       
+  facing          face            facit           facit          
+  fact            fact            faction         faction        
+  factionary      factionari      factions        faction        
+  factious        factiou         factor          factor         
+  factors         factor          faculties       faculti        
+  faculty         faculti         fade            fade           
+  faded           fade            fadeth          fadeth         
+  fadge           fadg            fading          fade           
+  fadings         fade            fadom           fadom          
+  fadoms          fadom           fagot           fagot          
+  fagots          fagot           fail            fail           
+  failing         fail            fails           fail           
+  fain            fain            faint           faint          
+  fainted         faint           fainter         fainter        
+  fainting        faint           faintly         faintli        
+  faintness       faint           faints          faint          
+  fair            fair            fairer          fairer         
+  fairest         fairest         fairies         fairi          
+  fairing         fair            fairings        fair           
+  fairly          fairli          fairness        fair           
+  fairs           fair            fairwell        fairwel        
+  fairy           fairi           fais            fai            
+  fait            fait            faites          fait           
+  faith           faith           faithful        faith          
+  faithfull       faithful        faithfully      faithfulli     
+  faithless       faithless       faiths          faith          
+  faitors         faitor          fal             fal            
+  falchion        falchion        falcon          falcon         
+  falconbridge    falconbridg     falconer        falcon         
+  falconers       falcon          fall            fall           
+  fallacy         fallaci         fallen          fallen         
+  falleth         falleth         falliable       falliabl       
+  fallible        fallibl         falling         fall           
+  fallow          fallow          fallows         fallow         
+  falls           fall            fally           falli          
+  falorous        falor           false           fals           
+  falsehood       falsehood       falsely         fals           
+  falseness       fals            falser          falser         
+  falsify         falsifi         falsing         fals           
+  falstaff        falstaff        falstaffs       falstaff       
+  falter          falter          fam             fam            
+  fame            fame            famed           fame           
+  familiar        familiar        familiarity     familiar       
+  familiarly      familiarli      familiars       familiar       
+  family          famili          famine          famin          
+  famish          famish          famished        famish         
+  famous          famou           famoused        famous         
+  famously        famous          fan             fan            
+  fanatical       fanat           fancies         fanci          
+  fancy           fanci           fane            fane           
+  fanes           fane            fang            fang           
+  fangled         fangl           fangless        fangless       
+  fangs           fang            fann            fann           
+  fanning         fan             fans            fan            
+  fantasied       fantasi         fantasies       fantasi        
+  fantastic       fantast         fantastical     fantast        
+  fantastically   fantast         fantasticoes    fantastico     
+  fantasy         fantasi         fap             fap            
+  far             far             farborough      farborough     
+  farced          farc            fardel          fardel         
+  fardels         fardel          fare            fare           
+  fares           fare            farewell        farewel        
+  farewells       farewel         fariner         farin          
+  faring          fare            farm            farm           
+  farmer          farmer          farmhouse       farmhous       
+  farms           farm            farre           farr           
+  farrow          farrow          farther         farther        
+  farthest        farthest        farthing        farth          
+  farthingale     farthingal      farthingales    farthingal     
+  farthings       farth           fartuous        fartuou        
+  fas             fa              fashion         fashion        
+  fashionable     fashion         fashioning      fashion        
+  fashions        fashion         fast            fast           
+  fasted          fast            fasten          fasten         
+  fastened        fasten          faster          faster         
+  fastest         fastest         fasting         fast           
+  fastly          fastli          fastolfe        fastolf        
+  fasts           fast            fat             fat            
+  fatal           fatal           fatally         fatal          
+  fate            fate            fated           fate           
+  fates           fate            father          father         
+  fathered        father          fatherless      fatherless     
+  fatherly        fatherli        fathers         father         
+  fathom          fathom          fathomless      fathomless     
+  fathoms         fathom          fatigate        fatig          
+  fatness         fat             fats            fat            
+  fatted          fat             fatter          fatter         
+  fattest         fattest         fatting         fat            
+  fatuus          fatuu           fauconbridge    fauconbridg    
+  faulconbridge   faulconbridg    fault           fault          
+  faultiness      faulti          faultless       faultless      
+  faults          fault           faulty          faulti         
+  fausse          fauss           fauste          faust          
+  faustuses       faustus         faut            faut           
+  favor           favor           favorable       favor          
+  favorably       favor           favors          favor          
+  favour          favour          favourable      favour         
+  favoured        favour          favouredly      favouredli     
+  favourer        favour          favourers       favour         
+  favouring       favour          favourite       favourit       
+  favourites      favourit        favours         favour         
+  favout          favout          fawn            fawn           
+  fawneth         fawneth         fawning         fawn           
+  fawns           fawn            fay             fai            
+  fe              fe              fealty          fealti         
+  fear            fear            feared          fear           
+  fearest         fearest         fearful         fear           
+  fearfull        fearful         fearfully       fearfulli      
+  fearfulness     fear            fearing         fear           
+  fearless        fearless        fears           fear           
+  feast           feast           feasted         feast          
+  feasting        feast           feasts          feast          
+  feat            feat            feated          feat           
+  feater          feater          feather         feather        
+  feathered       feather         feathers        feather        
+  featly          featli          feats           feat           
+  featur          featur          feature         featur         
+  featured        featur          featureless     featureless    
+  features        featur          february        februari       
+  fecks           feck            fed             fed            
+  fedary          fedari          federary        federari       
+  fee             fee             feeble          feebl          
+  feebled         feebl           feebleness      feebl          
+  feebling        feebl           feebly          feebli         
+  feed            feed            feeder          feeder         
+  feeders         feeder          feedeth         feedeth        
+  feeding         feed            feeds           feed           
+  feel            feel            feeler          feeler         
+  feeling         feel            feelingly       feelingli      
+  feels           feel            fees            fee            
+  feet            feet            fehemently      fehement       
+  feign           feign           feigned         feign          
+  feigning        feign           feil            feil           
+  feith           feith           felicitate      felicit        
+  felicity        felic           fell            fell           
+  fellest         fellest         fellies         felli          
+  fellow          fellow          fellowly        fellowli       
+  fellows         fellow          fellowship      fellowship     
+  fellowships     fellowship      fells           fell           
+  felon           felon           felonious       feloni         
+  felony          feloni          felt            felt           
+  female          femal           females         femal          
+  feminine        feminin         fen             fen            
+  fenc            fenc            fence           fenc           
+  fencer          fencer          fencing         fenc           
+  fends           fend            fennel          fennel         
+  fenny           fenni           fens            fen            
+  fenton          fenton          fer             fer            
+  ferdinand       ferdinand       fere            fere           
+  fernseed        fernse          ferrara         ferrara        
+  ferrers         ferrer          ferret          ferret         
+  ferry           ferri           ferryman        ferryman       
+  fertile         fertil          fertility       fertil         
+  fervency        fervenc         fervour         fervour        
+  fery            feri            fest            fest           
+  feste           fest            fester          fester         
+  festinate       festin          festinately     festin         
+  festival        festiv          festivals       festiv         
+  fet             fet             fetch           fetch          
+  fetches         fetch           fetching        fetch          
+  fetlock         fetlock         fetlocks        fetlock        
+  fett            fett            fetter          fetter         
+  fettering       fetter          fetters         fetter         
+  fettle          fettl           feu             feu            
+  feud            feud            fever           fever          
+  feverous        fever           fevers          fever          
+  few             few             fewer           fewer          
+  fewest          fewest          fewness         few            
+  fickle          fickl           fickleness      fickl          
+  fico            fico            fiction         fiction        
+  fiddle          fiddl           fiddler         fiddler        
+  fiddlestick     fiddlestick     fidele          fidel          
+  fidelicet       fidelicet       fidelity        fidel          
+  fidius          fidiu           fie             fie            
+  field           field           fielded         field          
+  fields          field           fiend           fiend          
+  fiends          fiend           fierce          fierc          
+  fiercely        fierc           fierceness      fierc          
+  fiery           fieri           fife            fife           
+  fifes           fife            fifteen         fifteen        
+  fifteens        fifteen         fifteenth       fifteenth      
+  fifth           fifth           fifty           fifti          
+  fiftyfold       fiftyfold       fig             fig            
+  fight           fight           fighter         fighter        
+  fightest        fightest        fighteth        fighteth       
+  fighting        fight           fights          fight          
+  figo            figo            figs            fig            
+  figur           figur           figure          figur          
+  figured         figur           figures         figur          
+  figuring        figur           fike            fike           
+  fil             fil             filberts        filbert        
+  filch           filch           filches         filch          
+  filching        filch           file            file           
+  filed           file            files           file           
+  filial          filial          filius          filiu          
+  fill            fill            filled          fill           
+  fillet          fillet          filling         fill           
+  fillip          fillip          fills           fill           
+  filly           filli           film            film           
+  fils            fil             filth           filth          
+  filths          filth           filthy          filthi         
+  fin             fin             finally         final          
+  finch           finch           find            find           
+  finder          finder          findeth         findeth        
+  finding         find            findings        find           
+  finds           find            fine            fine           
+  fineless        fineless        finely          fine           
+  finem           finem           fineness        fine           
+  finer           finer           fines           fine           
+  finest          finest          fing            fing           
+  finger          finger          fingering       finger         
+  fingers         finger          fingre          fingr          
+  fingres         fingr           finical         finic          
+  finish          finish          finished        finish         
+  finisher        finish          finless         finless        
+  finn            finn            fins            fin            
+  finsbury        finsburi        fir             fir            
+  firago          firago          fire            fire           
+  firebrand       firebrand       firebrands      firebrand      
+  fired           fire            fires           fire           
+  firework        firework        fireworks       firework       
+  firing          fire            firk            firk           
+  firm            firm            firmament       firmament      
+  firmly          firmli          firmness        firm           
+  first           first           firstlings      firstl         
+  fish            fish            fisher          fisher         
+  fishermen       fishermen       fishers         fisher         
+  fishes          fish            fishified       fishifi        
+  fishmonger      fishmong        fishpond        fishpond       
+  fisnomy         fisnomi         fist            fist           
+  fisting         fist            fists           fist           
+  fistula         fistula         fit             fit            
+  fitchew         fitchew         fitful          fit            
+  fitly           fitli           fitment         fitment        
+  fitness         fit             fits            fit            
+  fitted          fit             fitter          fitter         
+  fittest         fittest         fitteth         fitteth        
+  fitting         fit             fitzwater       fitzwat        
+  five            five            fivepence       fivep          
+  fives           five            fix             fix            
+  fixed           fix             fixes           fix            
+  fixeth          fixeth          fixing          fix            
+  fixture         fixtur          fl              fl             
+  flag            flag            flagging        flag           
+  flagon          flagon          flagons         flagon         
+  flags           flag            flail           flail          
+  flakes          flake           flaky           flaki          
+  flam            flam            flame           flame          
+  flamen          flamen          flamens         flamen         
+  flames          flame           flaming         flame          
+  flaminius       flaminiu        flanders        flander        
+  flannel         flannel         flap            flap           
+  flaring         flare           flash           flash          
+  flashes         flash           flashing        flash          
+  flask           flask           flat            flat           
+  flatly          flatli          flatness        flat           
+  flats           flat            flatt           flatt          
+  flatter         flatter         flattered       flatter        
+  flatterer       flatter         flatterers      flatter        
+  flatterest      flatterest      flatteries      flatteri       
+  flattering      flatter         flatters        flatter        
+  flattery        flatteri        flaunts         flaunt         
+  flavio          flavio          flavius         flaviu         
+  flaw            flaw            flaws           flaw           
+  flax            flax            flaxen          flaxen         
+  flay            flai            flaying         flai           
+  flea            flea            fleance         fleanc         
+  fleas           flea            flecked         fleck          
+  fled            fled            fledge          fledg          
+  flee            flee            fleec           fleec          
+  fleece          fleec           fleeces         fleec          
+  fleer           fleer           fleering        fleer          
+  fleers          fleer           fleet           fleet          
+  fleeter         fleeter         fleeting        fleet          
+  fleming         fleme           flemish         flemish        
+  flesh           flesh           fleshes         flesh          
+  fleshly         fleshli         fleshment       fleshment      
+  fleshmonger     fleshmong       flew            flew           
+  flexible        flexibl         flexure         flexur         
+  flibbertigibbet flibbertigibbet flickering      flicker        
+  flidge          flidg           fliers          flier          
+  flies           fli             flieth          flieth         
+  flight          flight          flights         flight         
+  flighty         flighti         flinch          flinch         
+  fling           fling           flint           flint          
+  flints          flint           flinty          flinti         
+  flirt           flirt           float           float          
+  floated         float           floating        float          
+  flock           flock           flocks          flock          
+  flood           flood           floodgates      floodgat       
+  floods          flood           floor           floor          
+  flora           flora           florence        florenc        
+  florentine      florentin       florentines     florentin      
+  florentius      florentiu       florizel        florizel       
+  flote           flote           floulish        floulish       
+  flour           flour           flourish        flourish       
+  flourishes      flourish        flourisheth     flourisheth    
+  flourishing     flourish        flout           flout          
+  flouted         flout           flouting        flout          
+  flouts          flout           flow            flow           
+  flowed          flow            flower          flower         
+  flowerets       floweret        flowers         flower         
+  flowing         flow            flown           flown          
+  flows           flow            fluellen        fluellen       
+  fluent          fluent          flung           flung          
+  flush           flush           flushing        flush          
+  fluster         fluster         flute           flute          
+  flutes          flute           flutter         flutter        
+  flux            flux            fluxive         fluxiv         
+  fly             fly             flying          fly            
+  fo              fo              foal            foal           
+  foals           foal            foam            foam           
+  foamed          foam            foaming         foam           
+  foams           foam            foamy           foami          
+  fob             fob             focative        foc            
+  fodder          fodder          foe             foe            
+  foeman          foeman          foemen          foemen         
+  foes            foe             fog             fog            
+  foggy           foggi           fogs            fog            
+  foh             foh             foi             foi            
+  foil            foil            foiled          foil           
+  foils           foil            foin            foin           
+  foining         foin            foins           foin           
+  fois            foi             foison          foison         
+  foisons         foison          foist           foist          
+  foix            foix            fold            fold           
+  folded          fold            folds           fold           
+  folio           folio           folk            folk           
+  folks           folk            follies         folli          
+  follow          follow          followed        follow         
+  follower        follow          followers       follow         
+  followest       followest       following       follow         
+  follows         follow          folly           folli          
+  fond            fond            fonder          fonder         
+  fondly          fondli          fondness        fond           
+  font            font            fontibell       fontibel       
+  food            food            fool            fool           
+  fooleries       fooleri         foolery         fooleri        
+  foolhardy       foolhardi       fooling         fool           
+  foolish         foolish         foolishly       foolishli      
+  foolishness     foolish         fools           fool           
+  foot            foot            football        footbal        
+  footboy         footboi         footboys        footboi        
+  footed          foot            footfall        footfal        
+  footing         foot            footman         footman        
+  footmen         footmen         footpath        footpath       
+  footsteps       footstep        footstool       footstool      
+  fopp            fopp            fopped          fop            
+  foppery         fopperi         foppish         foppish        
+  fops            fop             for             for            
+  forage          forag           foragers        forag          
+  forbade         forbad          forbear         forbear        
+  forbearance     forbear         forbears        forbear        
+  forbid          forbid          forbidden       forbidden      
+  forbiddenly     forbiddenli     forbids         forbid         
+  forbod          forbod          forborne        forborn        
+  forc            forc            force           forc           
+  forced          forc            forceful        forc           
+  forceless       forceless       forces          forc           
+  forcible        forcibl         forcibly        forcibl        
+  forcing         forc            ford            ford           
+  fordid          fordid          fordo           fordo          
+  fordoes         fordo           fordone         fordon         
+  fore            fore            forecast        forecast       
+  forefather      forefath        forefathers     forefath       
+  forefinger      forefing        forego          forego         
+  foregone        foregon         forehand        forehand       
+  forehead        forehead        foreheads       forehead       
+  forehorse       forehors        foreign         foreign        
+  foreigner       foreign         foreigners      foreign        
+  foreknowing     foreknow        foreknowledge   foreknowledg   
+  foremost        foremost        forenamed       forenam        
+  forenoon        forenoon        forerun         forerun        
+  forerunner      forerunn        forerunning     forerun        
+  foreruns        forerun         foresaid        foresaid       
+  foresaw         foresaw         foresay         foresai        
+  foresee         forese          foreseeing      forese         
+  foresees        forese          foreshow        foreshow       
+  foreskirt       foreskirt       forespent       foresp         
+  forest          forest          forestall       forestal       
+  forestalled     forestal        forester        forest         
+  foresters       forest          forests         forest         
+  foretell        foretel         foretelling     foretel        
+  foretells       foretel         forethink       forethink      
+  forethought     forethought     foretold        foretold       
+  forever         forev           foreward        foreward       
+  forewarn        forewarn        forewarned      forewarn       
+  forewarning     forewarn        forfeit         forfeit        
+  forfeited       forfeit         forfeiters      forfeit        
+  forfeiting      forfeit         forfeits        forfeit        
+  forfeiture      forfeitur       forfeitures     forfeitur      
+  forfend         forfend         forfended       forfend        
+  forg            forg            forgave         forgav         
+  forge           forg            forged          forg           
+  forgeries       forgeri         forgery         forgeri        
+  forges          forg            forget          forget         
+  forgetful       forget          forgetfulness   forget         
+  forgetive       forget          forgets         forget         
+  forgetting      forget          forgive         forgiv         
+  forgiven        forgiven        forgiveness     forgiv         
+  forgo           forgo           forgoing        forgo          
+  forgone         forgon          forgot          forgot         
+  forgotten       forgotten       fork            fork           
+  forked          fork            forks           fork           
+  forlorn         forlorn         form            form           
+  formal          formal          formally        formal         
+  formed          form            former          former         
+  formerly        formerli        formless        formless       
+  forms           form            fornication     fornic         
+  fornications    fornic          fornicatress    fornicatress   
+  forres          forr            forrest         forrest        
+  forsake         forsak          forsaken        forsaken       
+  forsaketh       forsaketh       forslow         forslow        
+  forsook         forsook         forsooth        forsooth       
+  forspent        forspent        forspoke        forspok        
+  forswear        forswear        forswearing     forswear       
+  forswore        forswor         forsworn        forsworn       
+  fort            fort            forted          fort           
+  forth           forth           forthcoming     forthcom       
+  forthlight      forthlight      forthright      forthright     
+  forthwith       forthwith       fortification   fortif         
+  fortifications  fortif          fortified       fortifi        
+  fortifies       fortifi         fortify         fortifi        
+  fortinbras      fortinbra       fortitude       fortitud       
+  fortnight       fortnight       fortress        fortress       
+  fortresses      fortress        forts           fort           
+  fortun          fortun          fortuna         fortuna        
+  fortunate       fortun          fortunately     fortun         
+  fortune         fortun          fortuned        fortun         
+  fortunes        fortun          fortward        fortward       
+  forty           forti           forum           forum          
+  forward         forward         forwarding      forward        
+  forwardness     forward         forwards        forward        
+  forwearied      forweari        fosset          fosset         
+  fost            fost            foster          foster         
+  fostered        foster          fought          fought         
+  foughten        foughten        foul            foul           
+  fouler          fouler          foulest         foulest        
+  foully          foulli          foulness        foul           
+  found           found           foundation      foundat        
+  foundations     foundat         founded         found          
+  founder         founder         fount           fount          
+  fountain        fountain        fountains       fountain       
+  founts          fount           four            four           
+  fourscore       fourscor        fourteen        fourteen       
+  fourth          fourth          foutra          foutra         
+  fowl            fowl            fowler          fowler         
+  fowling         fowl            fowls           fowl           
+  fox             fox             foxes           fox            
+  foxship         foxship         fracted         fract          
+  fraction        fraction        fractions       fraction       
+  fragile         fragil          fragment        fragment       
+  fragments       fragment        fragrant        fragrant       
+  frail           frail           frailer         frailer        
+  frailties       frailti         frailty         frailti        
+  fram            fram            frame           frame          
+  framed          frame           frames          frame          
+  frampold        frampold        fran            fran           
+  francais        francai         france          franc          
+  frances         franc           franchise       franchis       
+  franchised      franchis        franchisement   franchis       
+  franchises      franchis        franciae        francia        
+  francis         franci          francisca       francisca      
+  franciscan      franciscan      francisco       francisco      
+  frank           frank           franker         franker        
+  frankfort       frankfort       franklin        franklin       
+  franklins       franklin        frankly         frankli        
+  frankness       frank           frantic         frantic        
+  franticly       franticli       frateretto      frateretto     
+  fratrum         fratrum         fraud           fraud          
+  fraudful        fraud           fraught         fraught        
+  fraughtage      fraughtag       fraughting      fraught        
+  fray            frai            frays           frai           
+  freckl          freckl          freckled        freckl         
+  freckles        freckl          frederick       frederick      
+  free            free            freed           freed          
+  freedom         freedom         freedoms        freedom        
+  freehearted     freeheart       freelier        freelier       
+  freely          freeli          freeman         freeman        
+  freemen         freemen         freeness        freeness       
+  freer           freer           frees           free           
+  freestone       freeston        freetown        freetown       
+  freeze          freez           freezes         freez          
+  freezing        freez           freezings       freez          
+  french          french          frenchman       frenchman      
+  frenchmen       frenchmen       frenchwoman     frenchwoman    
+  frenzy          frenzi          frequent        frequent       
+  frequents       frequent        fresh           fresh          
+  fresher         fresher         freshes         fresh          
+  freshest        freshest        freshly         freshli        
+  freshness       fresh           fret            fret           
+  fretful         fret            frets           fret           
+  fretted         fret            fretten         fretten        
+  fretting        fret            friar           friar          
+  friars          friar           friday          fridai         
+  fridays         fridai          friend          friend         
+  friended        friend          friending       friend         
+  friendless      friendless      friendliness    friendli       
+  friendly        friendli        friends         friend         
+  friendship      friendship      friendships     friendship     
+  frieze          friez           fright          fright         
+  frighted        fright          frightened      frighten       
+  frightful       fright          frighting       fright         
+  frights         fright          fringe          fring          
+  fringed         fring           frippery        fripperi       
+  frisk           frisk           fritters        fritter        
+  frivolous       frivol          fro             fro            
+  frock           frock           frog            frog           
+  frogmore        frogmor         froissart       froissart      
+  frolic          frolic          from            from           
+  front           front           fronted         front          
+  frontier        frontier        frontiers       frontier       
+  fronting        front           frontlet        frontlet       
+  fronts          front           frost           frost          
+  frosts          frost           frosty          frosti         
+  froth           froth           froward         froward        
+  frown           frown           frowning        frown          
+  frowningly      frowningli      frowns          frown          
+  froze           froze           frozen          frozen         
+  fructify        fructifi        frugal          frugal         
+  fruit           fruit           fruiterer       fruiter        
+  fruitful        fruit           fruitfully      fruitfulli     
+  fruitfulness    fruit           fruition        fruition       
+  fruitless       fruitless       fruits          fruit          
+  frush           frush           frustrate       frustrat       
+  frutify         frutifi         fry             fry            
+  fubb            fubb            fuel            fuel           
+  fugitive        fugit           fulfil          fulfil         
+  fulfill         fulfil          fulfilling      fulfil         
+  fulfils         fulfil          full            full           
+  fullam          fullam          fuller          fuller         
+  fullers         fuller          fullest         fullest        
+  fullness        full            fully           fulli          
+  fulness         ful             fulsome         fulsom         
+  fulvia          fulvia          fum             fum            
+  fumble          fumbl           fumbles         fumbl          
+  fumblest        fumblest        fumbling        fumbl          
+  fume            fume            fumes           fume           
+  fuming          fume            fumiter         fumit          
+  fumitory        fumitori        fun             fun            
+  function        function        functions       function       
+  fundamental     fundament       funeral         funer          
+  funerals        funer           fur             fur            
+  furbish         furbish         furies          furi           
+  furious         furiou          furlongs        furlong        
+  furnace         furnac          furnaces        furnac         
+  furnish         furnish         furnished       furnish        
+  furnishings     furnish         furniture       furnitur       
+  furnival        furniv          furor           furor          
+  furr            furr            furrow          furrow         
+  furrowed        furrow          furrows         furrow         
+  furth           furth           further         further        
+  furtherance     further         furtherer       further        
+  furthermore     furthermor      furthest        furthest       
+  fury            furi            furze           furz           
+  furzes          furz            fust            fust           
+  fustian         fustian         fustilarian     fustilarian    
+  fusty           fusti           fut             fut            
+  future          futur           futurity        futur          
+  g               g               gabble          gabbl          
+  gaberdine       gaberdin        gabriel         gabriel        
+  gad             gad             gadding         gad            
+  gads            gad             gadshill        gadshil        
+  gag             gag             gage            gage           
+  gaged           gage            gagg            gagg           
+  gaging          gage            gagne           gagn           
+  gain            gain            gained          gain           
+  gainer          gainer          gaingiving      gaingiv        
+  gains           gain            gainsaid        gainsaid       
+  gainsay         gainsai         gainsaying      gainsai        
+  gainsays        gainsai         gainst          gainst         
+  gait            gait            gaited          gait           
+  galathe         galath          gale            gale           
+  galen           galen           gales           gale           
+  gall            gall            gallant         gallant        
+  gallantly       gallantli       gallantry       gallantri      
+  gallants        gallant         galled          gall           
+  gallery         galleri         galley          gallei         
+  galleys         gallei          gallia          gallia         
+  gallian         gallian         galliard        galliard       
+  galliasses      galliass        gallimaufry     gallimaufri    
+  galling         gall            gallons         gallon         
+  gallop          gallop          galloping       gallop         
+  gallops         gallop          gallow          gallow         
+  galloway        gallowai        gallowglasses   gallowglass    
+  gallows         gallow          gallowses       gallows        
+  galls           gall            gallus          gallu          
+  gam             gam             gambol          gambol         
+  gambold         gambold         gambols         gambol         
+  gamboys         gamboi          game            game           
+  gamers          gamer           games           game           
+  gamesome        gamesom         gamester        gamest         
+  gaming          game            gammon          gammon         
+  gamut           gamut           gan             gan            
+  gangren         gangren         ganymede        ganymed        
+  gaol            gaol            gaoler          gaoler         
+  gaolers         gaoler          gaols           gaol           
+  gap             gap             gape            gape           
+  gapes           gape            gaping          gape           
+  gar             gar             garb            garb           
+  garbage         garbag          garboils        garboil        
+  garcon          garcon          gard            gard           
+  garde           gard            garden          garden         
+  gardener        garden          gardeners       garden         
+  gardens         garden          gardez          gardez         
+  gardiner        gardin          gardon          gardon         
+  gargantua       gargantua       gargrave        gargrav        
+  garish          garish          garland         garland        
+  garlands        garland         garlic          garlic         
+  garment         garment         garments        garment        
+  garmet          garmet          garner          garner         
+  garners         garner          garnish         garnish        
+  garnished       garnish         garret          garret         
+  garrison        garrison        garrisons       garrison       
+  gart            gart            garter          garter         
+  garterd         garterd         gartering       garter         
+  garters         garter          gascony         gasconi        
+  gash            gash            gashes          gash           
+  gaskins         gaskin          gasp            gasp           
+  gasping         gasp            gasted          gast           
+  gastness        gast            gat             gat            
+  gate            gate            gated           gate           
+  gates           gate            gath            gath           
+  gather          gather          gathered        gather         
+  gathering       gather          gathers         gather         
+  gatories        gatori          gatory          gatori         
+  gaud            gaud            gaudeo          gaudeo         
+  gaudy           gaudi           gauge           gaug           
+  gaul            gaul            gaultree        gaultre        
+  gaunt           gaunt           gauntlet        gauntlet       
+  gauntlets       gauntlet        gav             gav            
+  gave            gave            gavest          gavest         
+  gawded          gawd            gawds           gawd           
+  gawsey          gawsei          gay             gai            
+  gayness         gay             gaz             gaz            
+  gaze            gaze            gazed           gaze           
+  gazer           gazer           gazers          gazer          
+  gazes           gaze            gazeth          gazeth         
+  gazing          gaze            gear            gear           
+  geck            geck            geese           gees           
+  geffrey         geffrei         geld            geld           
+  gelded          geld            gelding         geld           
+  gelida          gelida          gelidus         gelidu         
+  gelt            gelt            gem             gem            
+  geminy          gemini          gems            gem            
+  gen             gen             gender          gender         
+  genders         gender          general         gener          
+  generally       gener           generals        gener          
+  generation      gener           generations     gener          
+  generative      gener           generosity      generos        
+  generous        gener           genitive        genit          
+  genitivo        genitivo        genius          geniu          
+  gennets         gennet          genoa           genoa          
+  genoux          genoux          gens            gen            
+  gent            gent            gentilhomme     gentilhomm     
+  gentility       gentil          gentle          gentl          
+  gentlefolks     gentlefolk      gentleman       gentleman      
+  gentlemanlike   gentlemanlik    gentlemen       gentlemen      
+  gentleness      gentl           gentler         gentler        
+  gentles         gentl           gentlest        gentlest       
+  gentlewoman     gentlewoman     gentlewomen     gentlewomen    
+  gently          gentli          gentry          gentri         
+  george          georg           gerard          gerard         
+  germaines       germain         germains        germain        
+  german          german          germane         german         
+  germans         german          germany         germani        
+  gertrude        gertrud         gest            gest           
+  gests           gest            gesture         gestur         
+  gestures        gestur          get             get            
+  getrude         getrud          gets            get            
+  getter          getter          getting         get            
+  ghastly         ghastli         ghost           ghost          
+  ghosted         ghost           ghostly         ghostli        
+  ghosts          ghost           gi              gi             
+  giant           giant           giantess        giantess       
+  giantlike       giantlik        giants          giant          
+  gib             gib             gibber          gibber         
+  gibbet          gibbet          gibbets         gibbet         
+  gibe            gibe            giber           giber          
+  gibes           gibe            gibing          gibe           
+  gibingly        gibingli        giddily         giddili        
+  giddiness       giddi           giddy           giddi          
+  gift            gift            gifts           gift           
+  gig             gig             giglets         giglet         
+  giglot          giglot          gilbert         gilbert        
+  gild            gild            gilded          gild           
+  gilding         gild            gilliams        gilliam        
+  gillian         gillian         gills           gill           
+  gillyvors       gillyvor        gilt            gilt           
+  gimmal          gimmal          gimmers         gimmer         
+  gin             gin             ging            ging           
+  ginger          ginger          gingerbread     gingerbread    
+  gingerly        gingerli        ginn            ginn           
+  gins            gin             gioucestershire gioucestershir 
+  gipes           gipe            gipsies         gipsi          
+  gipsy           gipsi           gird            gird           
+  girded          gird            girdle          girdl          
+  girdled         girdl           girdles         girdl          
+  girdling        girdl           girl            girl           
+  girls           girl            girt            girt           
+  girth           girth           gis             gi             
+  giv             giv             give            give           
+  given           given           giver           giver          
+  givers          giver           gives           give           
+  givest          givest          giveth          giveth         
+  giving          give            givings         give           
+  glad            glad            gladded         glad           
+  gladding        glad            gladly          gladli         
+  gladness        glad            glamis          glami          
+  glanc           glanc           glance          glanc          
+  glanced         glanc           glances         glanc          
+  glancing        glanc           glanders        glander        
+  glansdale       glansdal        glare           glare          
+  glares          glare           glass           glass          
+  glasses         glass           glassy          glassi         
+  glaz            glaz            glazed          glaze          
+  gleams          gleam           glean           glean          
+  gleaned         glean           gleaning        glean          
+  gleeful         gleeful         gleek           gleek          
+  gleeking        gleek           gleeks          gleek          
+  glend           glend           glendower       glendow        
+  glib            glib            glide           glide          
+  glided          glide           glides          glide          
+  glideth         glideth         gliding         glide          
+  glimmer         glimmer         glimmering      glimmer        
+  glimmers        glimmer         glimpse         glimps         
+  glimpses        glimps          glist           glist          
+  glistening      glisten         glister         glister        
+  glistering      glister         glisters        glister        
+  glitt           glitt           glittering      glitter        
+  globe           globe           globes          globe          
+  glooming        gloom           gloomy          gloomi         
+  glories         glori           glorified       glorifi        
+  glorify         glorifi         glorious        gloriou        
+  gloriously      glorious        glory           glori          
+  glose           glose           gloss           gloss          
+  glosses         gloss           glou            glou           
+  glouceste       gloucest        gloucester      gloucest       
+  gloucestershire gloucestershir  glove           glove          
+  glover          glover          gloves          glove          
+  glow            glow            glowed          glow           
+  glowing         glow            glowworm        glowworm       
+  gloz            gloz            gloze           gloze          
+  glozes          gloze           glu             glu            
+  glue            glue            glued           glu            
+  glues           glue            glut            glut           
+  glutt           glutt           glutted         glut           
+  glutton         glutton         gluttoning      glutton        
+  gluttony        gluttoni        gnarled         gnarl          
+  gnarling        gnarl           gnat            gnat           
+  gnats           gnat            gnaw            gnaw           
+  gnawing         gnaw            gnawn           gnawn          
+  gnaws           gnaw            go              go             
+  goad            goad            goaded          goad           
+  goads           goad            goal            goal           
+  goat            goat            goatish         goatish        
+  goats           goat            gobbets         gobbet         
+  gobbo           gobbo           goblet          goblet         
+  goblets         goblet          goblin          goblin         
+  goblins         goblin          god             god            
+  godded          god             godden          godden         
+  goddess         goddess         goddesses       goddess        
+  goddild         goddild         godfather       godfath        
+  godfathers      godfath         godhead         godhead        
+  godlike         godlik          godliness       godli          
+  godly           godli           godmother       godmoth        
+  gods            god             godson          godson         
+  goer            goer            goers           goer           
+  goes            goe             goest           goest          
+  goeth           goeth           goffe           goff           
+  gogs            gog             going           go             
+  gold            gold            golden          golden         
+  goldenly        goldenli        goldsmith       goldsmith      
+  goldsmiths      goldsmith       golgotha        golgotha       
+  goliases        golias          goliath         goliath        
+  gon             gon             gondola         gondola        
+  gondolier       gondoli         gone            gone           
+  goneril         goneril         gong            gong           
+  gonzago         gonzago         gonzalo         gonzalo        
+  good            good            goodfellow      goodfellow     
+  goodlier        goodlier        goodliest       goodliest      
+  goodly          goodli          goodman         goodman        
+  goodness        good            goodnight       goodnight      
+  goodrig         goodrig         goods           good           
+  goodwife        goodwif         goodwill        goodwil        
+  goodwin         goodwin         goodwins        goodwin        
+  goodyear        goodyear        goodyears       goodyear       
+  goose           goos            gooseberry      gooseberri     
+  goosequills     goosequil       goot            goot           
+  gor             gor             gorbellied      gorbelli       
+  gorboduc        gorboduc        gordian         gordian        
+  gore            gore            gored           gore           
+  gorg            gorg            gorge           gorg           
+  gorgeous        gorgeou         gorget          gorget         
+  gorging         gorg            gorgon          gorgon         
+  gormandize      gormand         gormandizing    gormand        
+  gory            gori            gosling         gosl           
+  gospel          gospel          gospels         gospel         
+  goss            goss            gossamer        gossam         
+  gossip          gossip          gossiping       gossip         
+  gossiplike      gossiplik       gossips         gossip         
+  got             got             goth            goth           
+  goths           goth            gotten          gotten         
+  gourd           gourd           gout            gout           
+  gouts           gout            gouty           gouti          
+  govern          govern          governance      govern         
+  governed        govern          governess       gover          
+  government      govern          governor        governor       
+  governors       governor        governs         govern         
+  gower           gower           gown            gown           
+  gowns           gown            grac            grac           
+  grace           grace           graced          grace          
+  graceful        grace           gracefully      gracefulli     
+  graceless       graceless       graces          grace          
+  gracing         grace           gracious        graciou        
+  graciously      gracious        gradation       gradat         
+  graff           graff           graffing        graf           
+  graft           graft           grafted         graft          
+  grafters        grafter         grain           grain          
+  grained         grain           grains          grain          
+  gramercies      gramerci        gramercy        gramerci       
+  grammar         grammar         grand           grand          
+  grandam         grandam         grandame        grandam        
+  grandchild      grandchild      grande          grand          
+  grandeur        grandeur        grandfather     grandfath      
+  grandjurors     grandjuror      grandmother     grandmoth      
+  grandpre        grandpr         grandsir        grandsir       
+  grandsire       grandsir        grandsires      grandsir       
+  grange          grang           grant           grant          
+  granted         grant           granting        grant          
+  grants          grant           grape           grape          
+  grapes          grape           grapple         grappl         
+  grapples        grappl          grappling       grappl         
+  grasp           grasp           grasped         grasp          
+  grasps          grasp           grass           grass          
+  grasshoppers    grasshopp       grassy          grassi         
+  grate           grate           grated          grate          
+  grateful        grate           grates          grate          
+  gratiano        gratiano        gratify         gratifi        
+  gratii          gratii          gratillity      gratil         
+  grating         grate           gratis          grati          
+  gratitude       gratitud        gratulate       gratul         
+  grav            grav            grave           grave          
+  gravediggers    gravedigg       gravel          gravel         
+  graveless       graveless       gravell         gravel         
+  gravely         grave           graven          graven         
+  graveness       grave           graver          graver         
+  graves          grave           gravest         gravest        
+  gravestone      graveston       gravities       graviti        
+  gravity         graviti         gravy           gravi          
+  gray            grai            graymalkin      graymalkin     
+  graz            graz            graze           graze          
+  grazed          graze           grazing         graze          
+  grease          greas           greases         greas          
+  greasily        greasili        greasy          greasi         
+  great           great           greater         greater        
+  greatest        greatest        greatly         greatli        
+  greatness       great           grecian         grecian        
+  grecians        grecian         gree            gree           
+  greece          greec           greed           greed          
+  greedily        greedili        greediness      greedi         
+  greedy          greedi          greeing         gree           
+  greek           greek           greekish        greekish       
+  greeks          greek           green           green          
+  greener         greener         greenly         greenli        
+  greens          green           greensleeves    greensleev     
+  greenwich       greenwich       greenwood       greenwood      
+  greet           greet           greeted         greet          
+  greeting        greet           greetings       greet          
+  greets          greet           greg            greg           
+  gregory         gregori         gremio          gremio         
+  grew            grew            grey            grei           
+  greybeard       greybeard       greybeards      greybeard      
+  greyhound       greyhound       greyhounds      greyhound      
+  grief           grief           griefs          grief          
+  griev           griev           grievance       grievanc       
+  grievances      grievanc        grieve          griev          
+  grieved         griev           grieves         griev          
+  grievest        grievest        grieving        griev          
+  grievingly      grievingli      grievous        grievou        
+  grievously      grievous        griffin         griffin        
+  griffith        griffith        grim            grim           
+  grime           grime           grimly          grimli         
+  grin            grin            grind           grind          
+  grinding        grind           grindstone      grindston      
+  grinning        grin            grip            grip           
+  gripe           gripe           gripes          gripe          
+  griping         gripe           grise           grise          
+  grisly          grisli          grissel         grissel        
+  grize           grize           grizzle         grizzl         
+  grizzled        grizzl          groan           groan          
+  groaning        groan           groans          groan          
+  groat           groat           groats          groat          
+  groin           groin           groom           groom          
+  grooms          groom           grop            grop           
+  groping         grope           gros            gro            
+  gross           gross           grosser         grosser        
+  grossly         grossli         grossness       gross          
+  ground          ground          grounded        ground         
+  groundlings     groundl         grounds         ground         
+  grove           grove           grovel          grovel         
+  grovelling      grovel          groves          grove          
+  grow            grow            groweth         groweth        
+  growing         grow            grown           grown          
+  grows           grow            growth          growth         
+  grub            grub            grubb           grubb          
+  grubs           grub            grudge          grudg          
+  grudged         grudg           grudges         grudg          
+  grudging        grudg           gruel           gruel          
+  grumble         grumbl          grumblest       grumblest      
+  grumbling       grumbl          grumblings      grumbl         
+  grumio          grumio          grund           grund          
+  grunt           grunt           gualtier        gualtier       
+  guard           guard           guardage        guardag        
+  guardant        guardant        guarded         guard          
+  guardian        guardian        guardians       guardian       
+  guards          guard           guardsman       guardsman      
+  gud             gud             gudgeon         gudgeon        
+  guerdon         guerdon         guerra          guerra         
+  guess           guess           guesses         guess          
+  guessingly      guessingli      guest           guest          
+  guests          guest           guiana          guiana         
+  guichard        guichard        guide           guid           
+  guided          guid            guider          guider         
+  guiderius       guideriu        guides          guid           
+  guiding         guid            guidon          guidon         
+  guienne         guienn          guil            guil           
+  guildenstern    guildenstern    guilders        guilder        
+  guildford       guildford       guildhall       guildhal       
+  guile           guil            guiled          guil           
+  guileful        guil            guilfords       guilford       
+  guilt           guilt           guiltian        guiltian       
+  guiltier        guiltier        guiltily        guiltili       
+  guiltiness      guilti          guiltless       guiltless      
+  guilts          guilt           guilty          guilti         
+  guinea          guinea          guinever        guinev         
+  guise           guis            gul             gul            
+  gules           gule            gulf            gulf           
+  gulfs           gulf            gull            gull           
+  gulls           gull            gum             gum            
+  gumm            gumm            gums            gum            
+  gun             gun             gunner          gunner         
+  gunpowder       gunpowd         guns            gun            
+  gurnet          gurnet          gurney          gurnei         
+  gust            gust            gusts           gust           
+  gusty           gusti           guts            gut            
+  gutter          gutter          guy             gui            
+  guynes          guyn            guysors         guysor         
+  gypsy           gypsi           gyve            gyve           
+  gyved           gyve            gyves           gyve           
+  h               h               ha              ha             
+  haberdasher     haberdash       habiliment      habili         
+  habiliments     habili          habit           habit          
+  habitation      habit           habited         habit          
+  habits          habit           habitude        habitud        
+  hack            hack            hacket          hacket         
+  hackney         hacknei         hacks           hack           
+  had             had             hadst           hadst          
+  haec            haec            haeres          haer           
+  hag             hag             hagar           hagar          
+  haggard         haggard         haggards        haggard        
+  haggish         haggish         haggled         haggl          
+  hags            hag             hail            hail           
+  hailed          hail            hailstone       hailston       
+  hailstones      hailston        hair            hair           
+  hairless        hairless        hairs           hair           
+  hairy           hairi           hal             hal            
+  halberd         halberd         halberds        halberd        
+  halcyon         halcyon         hale            hale           
+  haled           hale            hales           hale           
+  half            half            halfcan         halfcan        
+  halfpence       halfpenc        halfpenny       halfpenni      
+  halfpennyworth  halfpennyworth  halfway         halfwai        
+  halidom         halidom         hall            hall           
+  halloa          halloa          halloing        hallo          
+  hallond         hallond         halloo          halloo         
+  hallooing       halloo          hallow          hallow         
+  hallowed        hallow          hallowmas       hallowma       
+  hallown         hallown         hals            hal            
+  halt            halt            halter          halter         
+  halters         halter          halting         halt           
+  halts           halt            halves          halv           
+  ham             ham             hames           hame           
+  hamlet          hamlet          hammer          hammer         
+  hammered        hammer          hammering       hammer         
+  hammers         hammer          hamper          hamper         
+  hampton         hampton         hams            ham            
+  hamstring       hamstr          hand            hand           
+  handed          hand            handful         hand           
+  handicraft      handicraft      handicraftsmen  handicraftsmen 
+  handing         hand            handiwork       handiwork      
+  handkercher     handkerch       handkerchers    handkerch      
+  handkerchief    handkerchief    handle          handl          
+  handled         handl           handles         handl          
+  handless        handless        handlest        handlest       
+  handling        handl           handmaid        handmaid       
+  handmaids       handmaid        hands           hand           
+  handsaw         handsaw         handsome        handsom        
+  handsomely      handsom         handsomeness    handsom        
+  handwriting     handwrit        handy           handi          
+  hang            hang            hanged          hang           
+  hangers         hanger          hangeth         hangeth        
+  hanging         hang            hangings        hang           
+  hangman         hangman         hangmen         hangmen        
+  hangs           hang            hannibal        hannib         
+  hap             hap             hapless         hapless        
+  haply           hapli           happ            happ           
+  happen          happen          happened        happen         
+  happier         happier         happies         happi          
+  happiest        happiest        happily         happili        
+  happiness       happi           happy           happi          
+  haps            hap             harbinger       harbing        
+  harbingers      harbing         harbor          harbor         
+  harbour         harbour         harbourage      harbourag      
+  harbouring      harbour         harbours        harbour        
+  harcourt        harcourt        hard            hard           
+  harder          harder          hardest         hardest        
+  hardiest        hardiest        hardiment       hardiment      
+  hardiness       hardi           hardly          hardli         
+  hardness        hard            hardocks        hardock        
+  hardy           hardi           hare            hare           
+  harelip         harelip         hares           hare           
+  harfleur        harfleur        hark            hark           
+  harlot          harlot          harlotry        harlotri       
+  harlots         harlot          harm            harm           
+  harmed          harm            harmful         harm           
+  harming         harm            harmless        harmless       
+  harmonious      harmoni         harmony         harmoni        
+  harms           harm            harness         har            
+  harp            harp            harper          harper         
+  harpier         harpier         harping         harp           
+  harpy           harpi           harried         harri          
+  harrow          harrow          harrows         harrow         
+  harry           harri           harsh           harsh          
+  harshly         harshli         harshness       harsh          
+  hart            hart            harts           hart           
+  harum           harum           harvest         harvest        
+  has             ha              hast            hast           
+  haste           hast            hasted          hast           
+  hasten          hasten          hastes          hast           
+  hastily         hastili         hasting         hast           
+  hastings        hast            hasty           hasti          
+  hat             hat             hatch           hatch          
+  hatches         hatch           hatchet         hatchet        
+  hatching        hatch           hatchment       hatchment      
+  hate            hate            hated           hate           
+  hateful         hate            hater           hater          
+  haters          hater           hates           hate           
+  hateth          hateth          hatfield        hatfield       
+  hath            hath            hating          hate           
+  hatred          hatr            hats            hat            
+  haud            haud            hauf            hauf           
+  haught          haught          haughtiness     haughti        
+  haughty         haughti         haunch          haunch         
+  haunches        haunch          haunt           haunt          
+  haunted         haunt           haunting        haunt          
+  haunts          haunt           hautboy         hautboi        
+  hautboys        hautboi         have            have           
+  haven           haven           havens          haven          
+  haver           haver           having          have           
+  havings         have            havior          havior         
+  haviour         haviour         havoc           havoc          
+  hawk            hawk            hawking         hawk           
+  hawks           hawk            hawthorn        hawthorn       
+  hawthorns       hawthorn        hay             hai            
+  hazard          hazard          hazarded        hazard         
+  hazards         hazard          hazel           hazel          
+  hazelnut        hazelnut        he              he             
+  head            head            headborough     headborough    
+  headed          head            headier         headier        
+  heading         head            headland        headland       
+  headless        headless        headlong        headlong       
+  heads           head            headsman        headsman       
+  headstrong      headstrong      heady           headi          
+  heal            heal            healed          heal           
+  healing         heal            heals           heal           
+  health          health          healthful       health         
+  healths         health          healthsome      healthsom      
+  healthy         healthi         heap            heap           
+  heaping         heap            heaps           heap           
+  hear            hear            heard           heard          
+  hearer          hearer          hearers         hearer         
+  hearest         hearest         heareth         heareth        
+  hearing         hear            hearings        hear           
+  heark           heark           hearken         hearken        
+  hearkens        hearken         hears           hear           
+  hearsay         hearsai         hearse          hears          
+  hearsed         hears           hearst          hearst         
+  heart           heart           heartache       heartach       
+  heartbreak      heartbreak      heartbreaking   heartbreak     
+  hearted         heart           hearten         hearten        
+  hearth          hearth          hearths         hearth         
+  heartily        heartili        heartiness      hearti         
+  heartless       heartless       heartlings      heartl         
+  heartly         heartli         hearts          heart          
+  heartsick       heartsick       heartstrings    heartstr       
+  hearty          hearti          heat            heat           
+  heated          heat            heath           heath          
+  heathen         heathen         heathenish      heathenish     
+  heating         heat            heats           heat           
+  heauties        heauti          heav            heav           
+  heave           heav            heaved          heav           
+  heaven          heaven          heavenly        heavenli       
+  heavens         heaven          heaves          heav           
+  heavier         heavier         heaviest        heaviest       
+  heavily         heavili         heaviness       heavi          
+  heaving         heav            heavings        heav           
+  heavy           heavi           hebona          hebona         
+  hebrew          hebrew          hecate          hecat          
+  hectic          hectic          hector          hector         
+  hectors         hector          hecuba          hecuba         
+  hedg            hedg            hedge           hedg           
+  hedgehog        hedgehog        hedgehogs       hedgehog       
+  hedges          hedg            heed            heed           
+  heeded          heed            heedful         heed           
+  heedfull        heedful         heedfully       heedfulli      
+  heedless        heedless        heel            heel           
+  heels           heel            hefted          heft           
+  hefts           heft            heifer          heifer         
+  heifers         heifer          heigh           heigh          
+  height          height          heighten        heighten       
+  heinous         heinou          heinously       heinous        
+  heir            heir            heiress         heiress        
+  heirless        heirless        heirs           heir           
+  held            held            helen           helen          
+  helena          helena          helenus         helenu         
+  helias          helia           helicons        helicon        
+  hell            hell            hellespont      hellespont     
+  hellfire        hellfir         hellish         hellish        
+  helm            helm            helmed          helm           
+  helmet          helmet          helmets         helmet         
+  helms           helm            help            help           
+  helper          helper          helpers         helper         
+  helpful         help            helping         help           
+  helpless        helpless        helps           help           
+  helter          helter          hem             hem            
+  heme            heme            hemlock         hemlock        
+  hemm            hemm            hemp            hemp           
+  hempen          hempen          hems            hem            
+  hen             hen             hence           henc           
+  henceforth      henceforth      henceforward    henceforward   
+  henchman        henchman        henri           henri          
+  henricus        henricu         henry           henri          
+  hens            hen             hent            hent           
+  henton          henton          her             her            
+  herald          herald          heraldry        heraldri       
+  heralds         herald          herb            herb           
+  herbert         herbert         herblets        herblet        
+  herbs           herb            herculean       herculean      
+  hercules        hercul          herd            herd           
+  herds           herd            herdsman        herdsman       
+  herdsmen        herdsmen        here            here           
+  hereabout       hereabout       hereabouts      hereabout      
+  hereafter       hereaft         hereby          herebi         
+  hereditary      hereditari      hereford        hereford       
+  herefordshire   herefordshir    herein          herein         
+  hereof          hereof          heresies        heresi         
+  heresy          heresi          heretic         heret          
+  heretics        heret           hereto          hereto         
+  hereupon        hereupon        heritage        heritag        
+  heritier        heriti          hermes          herm           
+  hermia          hermia          hermione        hermion        
+  hermit          hermit          hermitage       hermitag       
+  hermits         hermit          herne           hern           
+  hero            hero            herod           herod          
+  herods          herod           heroes          hero           
+  heroic          heroic          heroical        heroic         
+  herring         her             herrings        her            
+  hers            her             herself         herself        
+  hesperides      hesperid        hesperus        hesperu        
+  hest            hest            hests           hest           
+  heure           heur            heureux         heureux        
+  hew             hew             hewgh           hewgh          
+  hewing          hew             hewn            hewn           
+  hews            hew             hey             hei            
+  heyday          heydai          hibocrates      hibocr         
+  hic             hic             hiccups         hiccup         
+  hick            hick            hid             hid            
+  hidden          hidden          hide            hide           
+  hideous         hideou          hideously       hideous        
+  hideousness     hideous         hides           hide           
+  hidest          hidest          hiding          hide           
+  hie             hie             hied            hi             
+  hiems           hiem            hies            hi             
+  hig             hig             high            high           
+  higher          higher          highest         highest        
+  highly          highli          highmost        highmost       
+  highness        high            hight           hight          
+  highway         highwai         highways        highwai        
+  hilding         hild            hildings        hild           
+  hill            hill            hillo           hillo          
+  hilloa          hilloa          hills           hill           
+  hilt            hilt            hilts           hilt           
+  hily            hili            him             him            
+  himself         himself         hinc            hinc           
+  hinckley        hincklei        hind            hind           
+  hinder          hinder          hindered        hinder         
+  hinders         hinder          hindmost        hindmost       
+  hinds           hind            hing            hing           
+  hinge           hing            hinges          hing           
+  hint            hint            hip             hip            
+  hipp            hipp            hipparchus      hipparchu      
+  hippolyta       hippolyta       hips            hip            
+  hir             hir             hire            hire           
+  hired           hire            hiren           hiren          
+  hirtius         hirtiu          his             hi             
+  hisperia        hisperia        hiss            hiss           
+  hisses          hiss            hissing         hiss           
+  hist            hist            historical      histor         
+  history         histori         hit             hit            
+  hither          hither          hitherto        hitherto       
+  hitherward      hitherward      hitherwards     hitherward     
+  hits            hit             hitting         hit            
+  hive            hive            hives           hive           
+  hizzing         hizz            ho              ho             
+  hoa             hoa             hoar            hoar           
+  hoard           hoard           hoarded         hoard          
+  hoarding        hoard           hoars           hoar           
+  hoarse          hoars           hoary           hoari          
+  hob             hob             hobbididence    hobbidid       
+  hobby           hobbi           hobbyhorse      hobbyhors      
+  hobgoblin       hobgoblin       hobnails        hobnail        
+  hoc             hoc             hod             hod            
+  hodge           hodg            hog             hog            
+  hogs            hog             hogshead        hogshead       
+  hogsheads       hogshead        hois            hoi            
+  hoise           hois            hoist           hoist          
+  hoisted         hoist           hoists          hoist          
+  holborn         holborn         hold            hold           
+  holden          holden          holder          holder         
+  holdeth         holdeth         holdfast        holdfast       
+  holding         hold            holds           hold           
+  hole            hole            holes           hole           
+  holidam         holidam         holidame        holidam        
+  holiday         holidai         holidays        holidai        
+  holier          holier          holiest         holiest        
+  holily          holili          holiness        holi           
+  holla           holla           holland         holland        
+  hollander       holland         hollanders      holland        
+  holloa          holloa          holloaing       holloa         
+  hollow          hollow          hollowly        hollowli       
+  hollowness      hollow          holly           holli          
+  holmedon        holmedon        holofernes      holofern       
+  holp            holp            holy            holi           
+  homage          homag           homager         homag          
+  home            home            homely          home           
+  homes           home            homespuns       homespun       
+  homeward        homeward        homewards       homeward       
+  homicide        homicid         homicides       homicid        
+  homily          homili          hominem         hominem        
+  hommes          homm            homo            homo           
+  honest          honest          honester        honest         
+  honestest       honestest       honestly        honestli       
+  honesty         honesti         honey           honei          
+  honeycomb       honeycomb       honeying        honei          
+  honeyless       honeyless       honeysuckle     honeysuckl     
+  honeysuckles    honeysuckl      honi            honi           
+  honneur         honneur         honor           honor          
+  honorable       honor           honorably       honor          
+  honorato        honorato        honorificabilitudinitatibus honorificabilitudinitatibu
+  honors          honor           honour          honour         
+  honourable      honour          honourably      honour         
+  honoured        honour          honourest       honourest      
+  honourible      honour          honouring       honour         
+  honours         honour          hoo             hoo            
+  hood            hood            hooded          hood           
+  hoodman         hoodman         hoods           hood           
+  hoodwink        hoodwink        hoof            hoof           
+  hoofs           hoof            hook            hook           
+  hooking         hook            hooks           hook           
+  hoop            hoop            hoops           hoop           
+  hoot            hoot            hooted          hoot           
+  hooting         hoot            hoots           hoot           
+  hop             hop             hope            hope           
+  hopeful         hope            hopeless        hopeless       
+  hopes           hope            hopest          hopest         
+  hoping          hope            hopkins         hopkin         
+  hoppedance      hopped          hor             hor            
+  horace          horac           horatio         horatio        
+  horizon         horizon         horn            horn           
+  hornbook        hornbook        horned          horn           
+  horner          horner          horning         horn           
+  hornpipes       hornpip         horns           horn           
+  horologe        horolog         horrible        horribl        
+  horribly        horribl         horrid          horrid         
+  horrider        horrid          horridly        horridli       
+  horror          horror          horrors         horror         
+  hors            hor             horse           hors           
+  horseback       horseback       horsed          hors           
+  horsehairs      horsehair       horseman        horseman       
+  horsemanship    horsemanship    horsemen        horsemen       
+  horses          hors            horseway        horsewai       
+  horsing         hors            hortensio       hortensio      
+  hortensius      hortensiu       horum           horum          
+  hose            hose            hospitable      hospit         
+  hospital        hospit          hospitality     hospit         
+  host            host            hostage         hostag         
+  hostages        hostag          hostess         hostess        
+  hostile         hostil          hostility       hostil         
+  hostilius       hostiliu        hosts           host           
+  hot             hot             hotly           hotli          
+  hotspur         hotspur         hotter          hotter         
+  hottest         hottest         hound           hound          
+  hounds          hound           hour            hour           
+  hourly          hourli          hours           hour           
+  hous            hou             house           hous           
+  household       household       householder     household      
+  householders    household       households      household      
+  housekeeper     housekeep       housekeepers    housekeep      
+  housekeeping    housekeep       houseless       houseless      
+  houses          hous            housewife       housewif       
+  housewifery     housewiferi     housewives      housew         
+  hovel           hovel           hover           hover          
+  hovered         hover           hovering        hover          
+  hovers          hover           how             how            
+  howbeit         howbeit         howe            how            
+  howeer          howeer          however         howev          
+  howl            howl            howled          howl           
+  howlet          howlet          howling         howl           
+  howls           howl            howsoe          howso          
+  howsoever       howsoev         howsome         howsom         
+  hoxes           hox             hoy             hoi            
+  hoyday          hoydai          hubert          hubert         
+  huddled         huddl           huddling        huddl          
+  hue             hue             hued            hu             
+  hues            hue             hug             hug            
+  huge            huge            hugely          huge           
+  hugeness        huge            hugg            hugg           
+  hugger          hugger          hugh            hugh           
+  hugs            hug             hujus           huju           
+  hulk            hulk            hulks           hulk           
+  hull            hull            hulling         hull           
+  hullo           hullo           hum             hum            
+  human           human           humane          human          
+  humanely        human           humanity        human          
+  humble          humbl           humbled         humbl          
+  humbleness      humbl           humbler         humbler        
+  humbles         humbl           humblest        humblest       
+  humbling        humbl           humbly          humbl          
+  hume            hume            humh            humh           
+  humidity        humid           humility        humil          
+  humming         hum             humor           humor          
+  humorous        humor           humors          humor          
+  humour          humour          humourists      humourist      
+  humours         humour          humphrey        humphrei       
+  humphry         humphri         hums            hum            
+  hundred         hundr           hundreds        hundr          
+  hundredth       hundredth       hung            hung           
+  hungarian       hungarian       hungary         hungari        
+  hunger          hunger          hungerford      hungerford     
+  hungerly        hungerli        hungry          hungri         
+  hunt            hunt            hunted          hunt           
+  hunter          hunter          hunters         hunter         
+  hunteth         hunteth         hunting         hunt           
+  huntington      huntington      huntress        huntress       
+  hunts           hunt            huntsman        huntsman       
+  huntsmen        huntsmen        hurdle          hurdl          
+  hurl            hurl            hurling         hurl           
+  hurls           hurl            hurly           hurli          
+  hurlyburly      hurlyburli      hurricano       hurricano      
+  hurricanoes     hurricano       hurried         hurri          
+  hurries         hurri           hurry           hurri          
+  hurt            hurt            hurting         hurt           
+  hurtled         hurtl           hurtless        hurtless       
+  hurtling        hurtl           hurts           hurt           
+  husband         husband         husbanded       husband        
+  husbandless     husbandless     husbandry       husbandri      
+  husbands        husband         hush            hush           
+  hushes          hush            husht           husht          
+  husks           husk            huswife         huswif         
+  huswifes        huswif          hutch           hutch          
+  hybla           hybla           hydra           hydra          
+  hyen            hyen            hymen           hymen          
+  hymenaeus       hymenaeu        hymn            hymn           
+  hymns           hymn            hyperboles      hyperbol       
+  hyperbolical    hyperbol        hyperion        hyperion       
+  hypocrisy       hypocrisi       hypocrite       hypocrit       
+  hypocrites      hypocrit        hyrcan          hyrcan         
+  hyrcania        hyrcania        hyrcanian       hyrcanian      
+  hyssop          hyssop          hysterica       hysterica      
+  i               i               iachimo         iachimo        
+  iaculis         iaculi          iago            iago           
+  iament          iament          ibat            ibat           
+  icarus          icaru           ice             ic             
+  iceland         iceland         ici             ici            
+  icicle          icicl           icicles         icicl          
+  icy             ici             idea            idea           
+  ideas           idea            idem            idem           
+  iden            iden            ides            id             
+  idiot           idiot           idiots          idiot          
+  idle            idl             idleness        idl            
+  idles           idl             idly            idli           
+  idol            idol            idolatrous      idolatr        
+  idolatry        idolatri        ield            ield           
+  if              if              ifs             if             
+  ignis           igni            ignoble         ignobl         
+  ignobly         ignobl          ignominious     ignomini       
+  ignominy        ignomini        ignomy          ignomi         
+  ignorance       ignor           ignorant        ignor          
+  ii              ii              iii             iii            
+  iiii            iiii            il              il             
+  ilbow           ilbow           ild             ild            
+  ilion           ilion           ilium           ilium          
+  ill             ill             illegitimate    illegitim      
+  illiterate      illiter         illness         ill            
+  illo            illo            ills            ill            
+  illume          illum           illumin         illumin        
+  illuminate      illumin         illumineth      illumineth     
+  illusion        illus           illusions       illus          
+  illustrate      illustr         illustrated     illustr        
+  illustrious     illustri        illyria         illyria        
+  illyrian        illyrian        ils             il             
+  im              im              image           imag           
+  imagery         imageri         images          imag           
+  imagin          imagin          imaginary       imaginari      
+  imagination     imagin          imaginations    imagin         
+  imagine         imagin          imagining       imagin         
+  imaginings      imagin          imbar           imbar          
+  imbecility      imbecil         imbrue          imbru          
+  imitari         imitari         imitate         imit           
+  imitated        imit            imitation       imit           
+  imitations      imit            immaculate      immacul        
+  immanity        imman           immask          immask         
+  immaterial      immateri        immediacy       immediaci      
+  immediate       immedi          immediately     immedi         
+  imminence       immin           imminent        immin          
+  immoderate      immoder         immoderately    immoder        
+  immodest        immodest        immoment        immoment       
+  immortal        immort          immortaliz      immortaliz     
+  immortally      immort          immur           immur          
+  immured         immur           immures         immur          
+  imogen          imogen          imp             imp            
+  impaint         impaint         impair          impair         
+  impairing       impair          impale          impal          
+  impaled         impal           impanelled      impanel        
+  impart          impart          imparted        impart         
+  impartial       imparti         impartment      impart         
+  imparts         impart          impasted        impast         
+  impatience      impati          impatient       impati         
+  impatiently     impati          impawn          impawn         
+  impeach         impeach         impeached       impeach        
+  impeachment     impeach         impeachments    impeach        
+  impedes         imped           impediment      impedi         
+  impediments     impedi          impenetrable    impenetr       
+  imperator       imper           imperceiverant  imperceiver    
+  imperfect       imperfect       imperfection    imperfect      
+  imperfections   imperfect       imperfectly     imperfectli    
+  imperial        imperi          imperious       imperi         
+  imperiously     imperi          impertinency    impertin       
+  impertinent     impertin        impeticos       impetico       
+  impetuosity     impetuos        impetuous       impetu         
+  impieties       impieti         impiety         impieti        
+  impious         impiou          implacable      implac         
+  implements      implement       implies         impli          
+  implor          implor          implorators     implor         
+  implore         implor          implored        implor         
+  imploring       implor          impon           impon          
+  import          import          importance      import         
+  importancy      import          important       import         
+  importantly     importantli     imported        import         
+  importeth       importeth       importing       import         
+  importless      importless      imports         import         
+  importun        importun        importunacy     importunaci    
+  importunate     importun        importune       importun       
+  importunes      importun        importunity     importun       
+  impos           impo            impose          impos          
+  imposed         impos           imposition      imposit        
+  impositions     imposit         impossibilities imposs         
+  impossibility   imposs          impossible      imposs         
+  imposthume      imposthum       impostor        impostor       
+  impostors       impostor        impotence       impot          
+  impotent        impot           impounded       impound        
+  impregnable     impregn         imprese         impres         
+  impress         impress         impressed       impress        
+  impressest      impressest      impression      impress        
+  impressure      impressur       imprimendum     imprimendum    
+  imprimis        imprimi         imprint         imprint        
+  imprinted       imprint         imprison        imprison       
+  imprisoned      imprison        imprisoning     imprison       
+  imprisonment    imprison        improbable      improb         
+  improper        improp          improve         improv         
+  improvident     improvid        impudence       impud          
+  impudency       impud           impudent        impud          
+  impudently      impud           impudique       impudiqu       
+  impugn          impugn          impugns         impugn         
+  impure          impur           imputation      imput          
+  impute          imput           in              in             
+  inaccessible    inaccess        inaidable       inaid          
+  inaudible       inaud           inauspicious    inauspici      
+  incaged         incag           incantations    incant         
+  incapable       incap           incardinate     incardin       
+  incarnadine     incarnadin      incarnate       incarn         
+  incarnation     incarn          incens          incen          
+  incense         incens          incensed        incens         
+  incensement     incens          incenses        incens         
+  incensing       incens          incertain       incertain      
+  incertainties   incertainti     incertainty     incertainti    
+  incessant       incess          incessantly     incessantli    
+  incest          incest          incestuous      incestu        
+  inch            inch            incharitable    incharit       
+  inches          inch            incidency       incid          
+  incident        incid           incision        incis          
+  incite          incit           incites         incit          
+  incivil         incivil         incivility      incivil        
+  inclin          inclin          inclinable      inclin         
+  inclination     inclin          incline         inclin         
+  inclined        inclin          inclines        inclin         
+  inclining       inclin          inclips         inclip         
+  include         includ          included        includ         
+  includes        includ          inclusive       inclus         
+  incomparable    incompar        incomprehensible incomprehens   
+  inconsiderate   inconsider      inconstancy     inconst        
+  inconstant      inconst         incontinency    incontin       
+  incontinent     incontin        incontinently   incontin       
+  inconvenience   inconveni       inconveniences  inconveni      
+  inconvenient    inconveni       incony          inconi         
+  incorporate     incorpor        incorps         incorp         
+  incorrect       incorrect       increas         increa         
+  increase        increas         increases       increas        
+  increaseth      increaseth      increasing      increas        
+  incredible      incred          incredulous     incredul       
+  incur           incur           incurable       incur          
+  incurr          incurr          incurred        incur          
+  incursions      incurs          ind             ind            
+  inde            ind             indebted        indebt         
+  indeed          inde            indent          indent         
+  indented        indent          indenture       indentur       
+  indentures      indentur        index           index          
+  indexes         index           india           india          
+  indian          indian          indict          indict         
+  indicted        indict          indictment      indict         
+  indies          indi            indifferency    indiffer       
+  indifferent     indiffer        indifferently   indiffer       
+  indigent        indig           indigest        indigest       
+  indigested      indigest        indign          indign         
+  indignation     indign          indignations    indign         
+  indigne         indign          indignities     indign         
+  indignity       indign          indirect        indirect       
+  indirection     indirect        indirections    indirect       
+  indirectly      indirectli      indiscreet      indiscreet     
+  indiscretion    indiscret       indispos        indispo        
+  indisposition   indisposit      indissoluble    indissolubl    
+  indistinct      indistinct      indistinguish   indistinguish  
+  indistinguishable indistinguish   indited         indit          
+  individable     individ         indrench        indrench       
+  indu            indu            indubitate      indubit        
+  induc           induc           induce          induc          
+  induced         induc           inducement      induc          
+  induction       induct          inductions      induct         
+  indue           indu            indued          indu           
+  indues          indu            indulgence      indulg         
+  indulgences     indulg          indulgent       indulg         
+  indurance       indur           industrious     industri       
+  industriously   industri        industry        industri       
+  inequality      inequ           inestimable     inestim        
+  inevitable      inevit          inexecrable     inexecr        
+  inexorable      inexor          inexplicable    inexplic       
+  infallible      infal           infallibly      infal          
+  infamonize      infamon         infamous        infam          
+  infamy          infami          infancy         infanc         
+  infant          infant          infants         infant         
+  infect          infect          infected        infect         
+  infecting       infect          infection       infect         
+  infections      infect          infectious      infecti        
+  infectiously    infecti         infects         infect         
+  infer           infer           inference       infer          
+  inferior        inferior        inferiors       inferior       
+  infernal        infern          inferr          inferr         
+  inferreth       inferreth       inferring       infer          
+  infest          infest          infidel         infidel        
+  infidels        infidel         infinite        infinit        
+  infinitely      infinit         infinitive      infinit        
+  infirm          infirm          infirmities     infirm         
+  infirmity       infirm          infixed         infix          
+  infixing        infix           inflam          inflam         
+  inflame         inflam          inflaming       inflam         
+  inflammation    inflamm         inflict         inflict        
+  infliction      inflict         influence       influenc       
+  influences      influenc        infold          infold         
+  inform          inform          informal        inform         
+  information     inform          informations    inform         
+  informed        inform          informer        inform         
+  informs         inform          infortunate     infortun       
+  infring         infr            infringe        infring        
+  infringed       infring         infus           infu           
+  infuse          infus           infused         infus          
+  infusing        infus           infusion        infus          
+  ingener         ingen           ingenious       ingeni         
+  ingeniously     ingeni          inglorious      inglori        
+  ingots          ingot           ingraffed       ingraf         
+  ingraft         ingraft         ingrate         ingrat         
+  ingrated        ingrat          ingrateful      ingrat         
+  ingratitude     ingratitud      ingratitudes    ingratitud     
+  ingredient      ingredi         ingredients     ingredi        
+  ingross         ingross         inhabit         inhabit        
+  inhabitable     inhabit         inhabitants     inhabit        
+  inhabited       inhabit         inhabits        inhabit        
+  inhearse        inhears         inhearsed       inhears        
+  inherent        inher           inherit         inherit        
+  inheritance     inherit         inherited       inherit        
+  inheriting      inherit         inheritor       inheritor      
+  inheritors      inheritor       inheritrix      inheritrix     
+  inherits        inherit         inhibited       inhibit        
+  inhibition      inhibit         inhoop          inhoop         
+  inhuman         inhuman         iniquities      iniqu          
+  iniquity        iniqu           initiate        initi          
+  injointed       injoint         injunction      injunct        
+  injunctions     injunct         injur           injur          
+  injure          injur           injurer         injur          
+  injuries        injuri          injurious       injuri         
+  injury          injuri          injustice       injustic       
+  ink             ink             inkhorn         inkhorn        
+  inkle           inkl            inkles          inkl           
+  inkling         inkl            inky            inki           
+  inlaid          inlaid          inland          inland         
+  inlay           inlai           inly            inli           
+  inmost          inmost          inn             inn            
+  inner           inner           innkeeper       innkeep        
+  innocence       innoc           innocency       innoc          
+  innocent        innoc           innocents       innoc          
+  innovation      innov           innovator       innov          
+  inns            inn             innumerable     innumer        
+  inoculate       inocul          inordinate      inordin        
+  inprimis        inprimi         inquir          inquir         
+  inquire         inquir          inquiry         inquiri        
+  inquisition     inquisit        inquisitive     inquisit       
+  inroads         inroad          insane          insan          
+  insanie         insani          insatiate       insati         
+  insconce        insconc         inscrib         inscrib        
+  inscription     inscript        inscriptions    inscript       
+  inscroll        inscrol         inscrutable     inscrut        
+  insculp         insculp         insculpture     insculptur     
+  insensible      insens          inseparable     insepar        
+  inseparate      insepar         insert          insert         
+  inserted        insert          inset           inset          
+  inshell         inshel          inshipp         inshipp        
+  inside          insid           insinewed       insinew        
+  insinuate       insinu          insinuateth     insinuateth    
+  insinuating     insinu          insinuation     insinu         
+  insisted        insist          insisting       insist         
+  insisture       insistur        insociable      insoci         
+  insolence       insol           insolent        insol          
+  insomuch        insomuch        inspir          inspir         
+  inspiration     inspir          inspirations    inspir         
+  inspire         inspir          inspired        inspir         
+  install         instal          installed       instal         
+  instalment      instal          instance        instanc        
+  instances       instanc         instant         instant        
+  instantly       instantli       instate         instat         
+  instead         instead         insteeped       insteep        
+  instigate       instig          instigated      instig         
+  instigation     instig          instigations    instig         
+  instigator      instig          instinct        instinct       
+  instinctively   instinct        institute       institut       
+  institutions    institut        instruct        instruct       
+  instructed      instruct        instruction     instruct       
+  instructions    instruct        instructs       instruct       
+  instrument      instrument      instrumental    instrument     
+  instruments     instrument      insubstantial   insubstanti    
+  insufficience   insuffici       insufficiency   insuffici      
+  insult          insult          insulted        insult         
+  insulting       insult          insultment      insult         
+  insults         insult          insupportable   insupport      
+  insuppressive   insuppress      insurrection    insurrect      
+  insurrections   insurrect       int             int            
+  integer         integ           integritas      integrita      
+  integrity       integr          intellect       intellect      
+  intellects      intellect       intellectual    intellectu     
+  intelligence    intellig        intelligencer   intelligenc    
+  intelligencing  intelligenc     intelligent     intellig       
+  intelligis      intelligi       intelligo       intelligo      
+  intemperance    intemper        intemperate     intemper       
+  intend          intend          intended        intend         
+  intendeth       intendeth       intending       intend         
+  intendment      intend          intends         intend         
+  intenible       inten           intent          intent         
+  intention       intent          intentively     intent         
+  intents         intent          inter           inter          
+  intercept       intercept       intercepted     intercept      
+  intercepter     intercept       interception    intercept      
+  intercepts      intercept       intercession    intercess      
+  intercessors    intercessor     interchained    interchain     
+  interchang      interchang      interchange     interchang     
+  interchangeably interchang      interchangement interchang     
+  interchanging   interchang      interdiction    interdict      
+  interest        interest        interim         interim        
+  interims        interim         interior        interior       
+  interjections   interject       interjoin       interjoin      
+  interlude       interlud        intermingle     intermingl     
+  intermission    intermiss       intermissive    intermiss      
+  intermit        intermit        intermix        intermix       
+  intermixed      intermix        interpose       interpos       
+  interposer      interpos        interposes      interpos       
+  interpret       interpret       interpretation  interpret      
+  interpreted     interpret       interpreter     interpret      
+  interpreters    interpret       interprets      interpret      
+  interr          interr          interred        inter          
+  interrogatories interrogatori   interrupt       interrupt      
+  interrupted     interrupt       interrupter     interrupt      
+  interruptest    interruptest    interruption    interrupt      
+  interrupts      interrupt       intertissued    intertissu     
+  intervallums    intervallum     interview       interview      
+  intestate       intest          intestine       intestin       
+  intil           intil           intimate        intim          
+  intimation      intim           intitled        intitl         
+  intituled       intitul         into            into           
+  intolerable     intoler         intoxicates     intox          
+  intreasured     intreasur       intreat         intreat        
+  intrench        intrench        intrenchant     intrench       
+  intricate       intric          intrinse        intrins        
+  intrinsicate    intrins         intrude         intrud         
+  intruder        intrud          intruding       intrud         
+  intrusion       intrus          inundation      inund          
+  inure           inur            inurn           inurn          
+  invade          invad           invades         invad          
+  invasion        invas           invasive        invas          
+  invectively     invect          invectives      invect         
+  inveigled       inveigl         invent          invent         
+  invented        invent          invention       invent         
+  inventions      invent          inventor        inventor       
+  inventorially   inventori       inventoried     inventori      
+  inventors       inventor        inventory       inventori      
+  inverness       inver           invert          invert         
+  invest          invest          invested        invest         
+  investing       invest          investments     invest         
+  inveterate      inveter         invincible      invinc         
+  inviolable      inviol          invised         invis          
+  invisible       invis           invitation      invit          
+  invite          invit           invited         invit          
+  invites         invit           inviting        invit          
+  invitis         inviti          invocate        invoc          
+  invocation      invoc           invoke          invok          
+  invoked         invok           invulnerable    invulner       
+  inward          inward          inwardly        inwardli       
+  inwardness      inward          inwards         inward         
+  ionia           ionia           ionian          ionian         
+  ipse            ips             ipswich         ipswich        
+  ira             ira             irae            ira            
+  iras            ira             ire             ir             
+  ireful          ir              ireland         ireland        
+  iris            iri             irish           irish          
+  irishman        irishman        irishmen        irishmen       
+  irks            irk             irksome         irksom         
+  iron            iron            irons           iron           
+  irreconcil      irreconcil      irrecoverable   irrecover      
+  irregular       irregular       irregulous      irregul        
+  irreligious     irreligi        irremovable     irremov        
+  irreparable     irrepar         irresolute      irresolut      
+  irrevocable     irrevoc         is              is             
+  isabel          isabel          isabella        isabella       
+  isbel           isbel           isbels          isbel          
+  iscariot        iscariot        ise             is             
+  ish             ish             isidore         isidor         
+  isis            isi             island          island         
+  islander        island          islanders       island         
+  islands         island          isle            isl            
+  isles           isl             israel          israel         
+  issu            issu            issue           issu           
+  issued          issu            issueless       issueless      
+  issues          issu            issuing         issu           
+  ist             ist             ista            ista           
+  it              it              italian         italian        
+  italy           itali           itch            itch           
+  itches          itch            itching         itch           
+  item            item            items           item           
+  iteration       iter            ithaca          ithaca         
+  its             it              itself          itself         
+  itshall         itshal          iv              iv             
+  ivory           ivori           ivy             ivi            
+  iwis            iwi             ix              ix             
+  j               j               jacet           jacet          
+  jack            jack            jackanapes      jackanap       
+  jacks           jack            jacksauce       jacksauc       
+  jackslave       jackslav        jacob           jacob          
+  jade            jade            jaded           jade           
+  jades           jade            jail            jail           
+  jakes           jake            jamany          jamani         
+  james           jame            jamy            jami           
+  jane            jane            jangled         jangl          
+  jangling        jangl           january         januari        
+  janus           janu            japhet          japhet         
+  jaquenetta      jaquenetta      jaques          jaqu           
+  jar             jar             jarring         jar            
+  jars            jar             jarteer         jarteer        
+  jasons          jason           jaunce          jaunc          
+  jauncing        jaunc           jaundice        jaundic        
+  jaundies        jaundi          jaw             jaw            
+  jawbone         jawbon          jaws            jaw            
+  jay             jai             jays            jai            
+  jc              jc              je              je             
+  jealous         jealou          jealousies      jealousi       
+  jealousy        jealousi        jeer            jeer           
+  jeering         jeer            jelly           jelli          
+  jenny           jenni           jeopardy        jeopardi       
+  jephtha         jephtha         jephthah        jephthah       
+  jerkin          jerkin          jerkins         jerkin         
+  jerks           jerk            jeronimy        jeronimi       
+  jerusalem       jerusalem       jeshu           jeshu          
+  jesses          jess            jessica         jessica        
+  jest            jest            jested          jest           
+  jester          jester          jesters         jester         
+  jesting         jest            jests           jest           
+  jesu            jesu            jesus           jesu           
+  jet             jet             jets            jet            
+  jew             jew             jewel           jewel          
+  jeweller        jewel           jewels          jewel          
+  jewess          jewess          jewish          jewish         
+  jewry           jewri           jews            jew            
+  jezebel         jezebel         jig             jig            
+  jigging         jig             jill            jill           
+  jills           jill            jingling        jingl          
+  joan            joan            job             job            
+  jockey          jockei          jocund          jocund         
+  jog             jog             jogging         jog            
+  john            john            johns           john           
+  join            join            joinder         joinder        
+  joined          join            joiner          joiner         
+  joineth         joineth         joins           join           
+  joint           joint           jointed         joint          
+  jointing        joint           jointly         jointli        
+  jointress       jointress       joints          joint          
+  jointure        jointur         jollity         jolliti        
+  jolly           jolli           jolt            jolt           
+  joltheads       jolthead        jordan          jordan         
+  joseph          joseph          joshua          joshua         
+  jot             jot             jour            jour           
+  jourdain        jourdain        journal         journal        
+  journey         journei         journeying      journei        
+  journeyman      journeyman      journeymen      journeymen     
+  journeys        journei         jove            jove           
+  jovem           jovem           jovial          jovial         
+  jowl            jowl            jowls           jowl           
+  joy             joi             joyed           joi            
+  joyful          joy             joyfully        joyfulli       
+  joyless         joyless         joyous          joyou          
+  joys            joi             juan            juan           
+  jud             jud             judas           juda           
+  judases         judas           jude            jude           
+  judg            judg            judge           judg           
+  judged          judg            judgement       judgement      
+  judges          judg            judgest         judgest        
+  judging         judg            judgment        judgment       
+  judgments       judgment        judicious       judici         
+  jug             jug             juggle          juggl          
+  juggled         juggl           juggler         juggler        
+  jugglers        juggler         juggling        juggl          
+  jugs            jug             juice           juic           
+  juiced          juic            jul             jul            
+  jule            jule            julia           julia          
+  juliet          juliet          julietta        julietta       
+  julio           julio           julius          juliu          
+  july            juli            jump            jump           
+  jumpeth         jumpeth         jumping         jump           
+  jumps           jump            june            june           
+  junes           june            junior          junior         
+  junius          juniu           junkets         junket         
+  juno            juno            jupiter         jupit          
+  jure            jure            jurement        jurement       
+  jurisdiction    jurisdict       juror           juror          
+  jurors          juror           jury            juri           
+  jurymen         jurymen         just            just           
+  justeius        justeiu         justest         justest        
+  justice         justic          justicer        justic         
+  justicers       justic          justices        justic         
+  justification   justif          justified       justifi        
+  justify         justifi         justle          justl          
+  justled         justl           justles         justl          
+  justling        justl           justly          justli         
+  justness        just            justs           just           
+  jutting         jut             jutty           jutti          
+  juvenal         juven           kam             kam            
+  kate            kate            kated           kate           
+  kates           kate            katharine       katharin       
+  katherina       katherina       katherine       katherin       
+  kecksies        kecksi          keech           keech          
+  keel            keel            keels           keel           
+  keen            keen            keenness        keen           
+  keep            keep            keepdown        keepdown       
+  keeper          keeper          keepers         keeper         
+  keepest         keepest         keeping         keep           
+  keeps           keep            keiser          keiser         
+  ken             ken             kendal          kendal         
+  kennel          kennel          kent            kent           
+  kentish         kentish         kentishman      kentishman     
+  kentishmen      kentishmen      kept            kept           
+  kerchief        kerchief        kerely          kere           
+  kern            kern            kernal          kernal         
+  kernel          kernel          kernels         kernel         
+  kerns           kern            kersey          kersei         
+  kettle          kettl           kettledrum      kettledrum     
+  kettledrums     kettledrum      key             kei            
+  keys            kei             kibe            kibe           
+  kibes           kibe            kick            kick           
+  kicked          kick            kickshaws       kickshaw       
+  kickshawses     kickshaws       kicky           kicki          
+  kid             kid             kidney          kidnei         
+  kikely          kike            kildare         kildar         
+  kill            kill            killed          kill           
+  killer          killer          killeth         killeth        
+  killing         kill            killingworth    killingworth   
+  kills           kill            kiln            kiln           
+  kimbolton       kimbolton       kin             kin            
+  kind            kind            kinder          kinder         
+  kindest         kindest         kindle          kindl          
+  kindled         kindl           kindless        kindless       
+  kindlier        kindlier        kindling        kindl          
+  kindly          kindli          kindness        kind           
+  kindnesses      kind            kindred         kindr          
+  kindreds        kindr           kinds           kind           
+  kine            kine            king            king           
+  kingdom         kingdom         kingdoms        kingdom        
+  kingly          kingli          kings           king           
+  kinred          kinr            kins            kin            
+  kinsman         kinsman         kinsmen         kinsmen        
+  kinswoman       kinswoman       kirtle          kirtl          
+  kirtles         kirtl           kiss            kiss           
+  kissed          kiss            kisses          kiss           
+  kissing         kiss            kitchen         kitchen        
+  kitchens        kitchen         kite            kite           
+  kites           kite            kitten          kitten         
+  kj              kj              kl              kl             
+  klll            klll            knack           knack          
+  knacks          knack           knapp           knapp          
+  knav            knav            knave           knave          
+  knaveries       knaveri         knavery         knaveri        
+  knaves          knave           knavish         knavish        
+  knead           knead           kneaded         knead          
+  kneading        knead           knee            knee           
+  kneel           kneel           kneeling        kneel          
+  kneels          kneel           knees           knee           
+  knell           knell           knew            knew           
+  knewest         knewest         knife           knife          
+  knight          knight          knighted        knight         
+  knighthood      knighthood      knighthoods     knighthood     
+  knightly        knightli        knights         knight         
+  knit            knit            knits           knit           
+  knitters        knitter         knitteth        knitteth       
+  knives          knive           knobs           knob           
+  knock           knock           knocking        knock          
+  knocks          knock           knog            knog           
+  knoll           knoll           knot            knot           
+  knots           knot            knotted         knot           
+  knotty          knotti          know            know           
+  knower          knower          knowest         knowest        
+  knowing         know            knowingly       knowingli      
+  knowings        know            knowledge       knowledg       
+  known           known           knows           know           
+  l               l               la              la             
+  laban           laban           label           label          
+  labell          label           labienus        labienu        
+  labio           labio           labor           labor          
+  laboring        labor           labors          labor          
+  labour          labour          laboured        labour         
+  labourer        labour          labourers       labour         
+  labouring       labour          labours         labour         
+  laboursome      laboursom       labras          labra          
+  labyrinth       labyrinth       lac             lac            
+  lace            lace            laced           lace           
+  lacedaemon      lacedaemon      laces           lace           
+  lacies          laci            lack            lack           
+  lackbeard       lackbeard       lacked          lack           
+  lackey          lackei          lackeying       lackei         
+  lackeys         lackei          lacking         lack           
+  lacks           lack            lad             lad            
+  ladder          ladder          ladders         ladder         
+  lade            lade            laden           laden          
+  ladies          ladi            lading          lade           
+  lads            lad             lady            ladi           
+  ladybird        ladybird        ladyship        ladyship       
+  ladyships       ladyship        laer            laer           
+  laertes         laert           lafeu           lafeu          
+  lag             lag             lagging         lag            
+  laid            laid            lain            lain           
+  laissez         laissez         lake            lake           
+  lakes           lake            lakin           lakin          
+  lam             lam             lamb            lamb           
+  lambert         lambert         lambkin         lambkin        
+  lambkins        lambkin         lambs           lamb           
+  lame            lame            lamely          lame           
+  lameness        lame            lament          lament         
+  lamentable      lament          lamentably      lament         
+  lamentation     lament          lamentations    lament         
+  lamented        lament          lamenting       lament         
+  lamentings      lament          laments         lament         
+  lames           lame            laming          lame           
+  lammas          lamma           lammastide      lammastid      
+  lamound         lamound         lamp            lamp           
+  lampass         lampass         lamps           lamp           
+  lanc            lanc            lancaster       lancast        
+  lance           lanc            lances          lanc           
+  lanceth         lanceth         lanch           lanch          
+  land            land            landed          land           
+  landing         land            landless        landless       
+  landlord        landlord        landmen         landmen        
+  lands           land            lane            lane           
+  lanes           lane            langage         langag         
+  langley         langlei         langton         langton        
+  language        languag         languageless    languageless   
+  languages       languag         langues         langu          
+  languish        languish        languished      languish       
+  languishes      languish        languishing     languish       
+  languishings    languish        languishment    languish       
+  languor         languor         lank            lank           
+  lantern         lantern         lanterns        lantern        
+  lanthorn        lanthorn        lap             lap            
+  lapis           lapi            lapland         lapland        
+  lapp            lapp            laps            lap            
+  lapse           laps            lapsed          laps           
+  lapsing         laps            lapwing         lapw           
+  laquais         laquai          larded          lard           
+  larder          larder          larding         lard           
+  lards           lard            large           larg           
+  largely         larg            largeness       larg           
+  larger          larger          largess         largess        
+  largest         largest         lark            lark           
+  larks           lark            larron          larron         
+  lartius         lartiu          larum           larum          
+  larums          larum           las             la             
+  lascivious      lascivi         lash            lash           
+  lass            lass            lasses          lass           
+  last            last            lasted          last           
+  lasting         last            lastly          lastli         
+  lasts           last            latch           latch          
+  latches         latch           late            late           
+  lated           late            lately          late           
+  later           later           latest          latest         
+  lath            lath            latin           latin          
+  latten          latten          latter          latter         
+  lattice         lattic          laud            laud           
+  laudable        laudabl         laudis          laudi          
+  laugh           laugh           laughable       laughabl       
+  laughed         laugh           laugher         laugher        
+  laughest        laughest        laughing        laugh          
+  laughs          laugh           laughter        laughter       
+  launce          launc           launcelot       launcelot      
+  launces         launc           launch          launch         
+  laund           laund           laundress       laundress      
+  laundry         laundri         laur            laur           
+  laura           laura           laurel          laurel         
+  laurels         laurel          laurence        laurenc        
+  laus            lau             lavache         lavach         
+  lave            lave            lavee           lave           
+  lavender        lavend          lavina          lavina         
+  lavinia         lavinia         lavish          lavish         
+  lavishly        lavishli        lavolt          lavolt         
+  lavoltas        lavolta         law             law            
+  lawful          law             lawfully        lawfulli       
+  lawless         lawless         lawlessly       lawlessli      
+  lawn            lawn            lawns           lawn           
+  lawrence        lawrenc         laws            law            
+  lawyer          lawyer          lawyers         lawyer         
+  lay             lai             layer           layer          
+  layest          layest          laying          lai            
+  lays            lai             lazar           lazar          
+  lazars          lazar           lazarus         lazaru         
+  lazy            lazi            lc              lc             
+  ld              ld              ldst            ldst           
+  le              le              lead            lead           
+  leaden          leaden          leader          leader         
+  leaders         leader          leadest         leadest        
+  leading         lead            leads           lead           
+  leaf            leaf            leagu           leagu          
+  league          leagu           leagued         leagu          
+  leaguer         leaguer         leagues         leagu          
+  leah            leah            leak            leak           
+  leaky           leaki           lean            lean           
+  leander         leander         leaner          leaner         
+  leaning         lean            leanness        lean           
+  leans           lean            leap            leap           
+  leaped          leap            leaping         leap           
+  leaps           leap            leapt           leapt          
+  lear            lear            learn           learn          
+  learned         learn           learnedly       learnedli      
+  learning        learn           learnings       learn          
+  learns          learn           learnt          learnt         
+  leas            lea             lease           leas           
+  leases          leas            leash           leash          
+  leasing         leas            least           least          
+  leather         leather         leathern        leathern       
+  leav            leav            leave           leav           
+  leaven          leaven          leavening       leaven         
+  leaver          leaver          leaves          leav           
+  leaving         leav            leavy           leavi          
+  lecher          lecher          lecherous       lecher         
+  lechers         lecher          lechery         lecheri        
+  lecon           lecon           lecture         lectur         
+  lectures        lectur          led             led            
+  leda            leda            leech           leech          
+  leeches         leech           leek            leek           
+  leeks           leek            leer            leer           
+  leers           leer            lees            lee            
+  leese           lees            leet            leet           
+  leets           leet            left            left           
+  leg             leg             legacies        legaci         
+  legacy          legaci          legate          legat          
+  legatine        legatin         lege            lege           
+  legerity        leger           leges           lege           
+  legg            legg            legion          legion         
+  legions         legion          legitimate      legitim        
+  legitimation    legitim         legs            leg            
+  leicester       leicest         leicestershire  leicestershir  
+  leiger          leiger          leigers         leiger         
+  leisure         leisur          leisurely       leisur         
+  leisures        leisur          leman           leman          
+  lemon           lemon           lena            lena           
+  lend            lend            lender          lender         
+  lending         lend            lendings        lend           
+  lends           lend            length          length         
+  lengthen        lengthen        lengthens       lengthen       
+  lengths         length          lenity          leniti         
+  lennox          lennox          lent            lent           
+  lenten          lenten          lentus          lentu          
+  leo             leo             leon            leon           
+  leonardo        leonardo        leonati         leonati        
+  leonato         leonato         leonatus        leonatu        
+  leontes         leont           leopard         leopard        
+  leopards        leopard         leper           leper          
+  leperous        leper           lepidus         lepidu         
+  leprosy         leprosi         lequel          lequel         
+  lers            ler             les             le             
+  less            less            lessen          lessen         
+  lessens         lessen          lesser          lesser         
+  lesson          lesson          lessoned        lesson         
+  lessons         lesson          lest            lest           
+  lestrake        lestrak         let             let            
+  lethargied      lethargi        lethargies      lethargi       
+  lethargy        lethargi        lethe           leth           
+  lets            let             lett            lett           
+  letter          letter          letters         letter         
+  letting         let             lettuce         lettuc         
+  leur            leur            leve            leve           
+  level           level           levell          level          
+  levelled        level           levels          level          
+  leven           leven           levers          lever          
+  leviathan       leviathan       leviathans      leviathan      
+  levied          levi            levies          levi           
+  levity          leviti          levy            levi           
+  levying         levi            lewd            lewd           
+  lewdly          lewdli          lewdness        lewd           
+  lewdsters       lewdster        lewis           lewi           
+  liable          liabl           liar            liar           
+  liars           liar            libbard         libbard        
+  libelling       libel           libels          libel          
+  liberal         liber           liberality      liber          
+  liberte         libert          liberties       liberti        
+  libertine       libertin        libertines      libertin       
+  liberty         liberti         library         librari        
+  libya           libya           licence         licenc         
+  licens          licen           license         licens         
+  licentious      licenti         lichas          licha          
+  licio           licio           lick            lick           
+  licked          lick            licker          licker         
+  lictors         lictor          lid             lid            
+  lids            lid             lie             lie            
+  lied            li              lief            lief           
+  liefest         liefest         liege           lieg           
+  liegeman        liegeman        liegemen        liegemen       
+  lien            lien            lies            li             
+  liest           liest           lieth           lieth          
+  lieu            lieu            lieutenant      lieuten        
+  lieutenantry    lieutenantri    lieutenants     lieuten        
+  lieve           liev            life            life           
+  lifeblood       lifeblood       lifeless        lifeless       
+  lifelings       lifel           lift            lift           
+  lifted          lift            lifter          lifter         
+  lifteth         lifteth         lifting         lift           
+  lifts           lift            lig             lig            
+  ligarius        ligariu         liggens         liggen         
+  light           light           lighted         light          
+  lighten         lighten         lightens        lighten        
+  lighter         lighter         lightest        lightest       
+  lightly         lightli         lightness       light          
+  lightning       lightn          lightnings      lightn         
+  lights          light           lik             lik            
+  like            like            liked           like           
+  likeliest       likeliest       likelihood      likelihood     
+  likelihoods     likelihood      likely          like           
+  likeness        like            liker           liker          
+  likes           like            likest          likest         
+  likewise        likewis         liking          like           
+  likings         like            lilies          lili           
+  lily            lili            lim             lim            
+  limander        limand          limb            limb           
+  limbeck         limbeck         limbecks        limbeck        
+  limber          limber          limbo           limbo          
+  limbs           limb            lime            lime           
+  limed           lime            limehouse       limehous       
+  limekilns       limekiln        limit           limit          
+  limitation      limit           limited         limit          
+  limits          limit           limn            limn           
+  limp            limp            limping         limp           
+  limps           limp            lin             lin            
+  lincoln         lincoln         lincolnshire    lincolnshir    
+  line            line            lineal          lineal         
+  lineally        lineal          lineament       lineament      
+  lineaments      lineament       lined           line           
+  linen           linen           linens          linen          
+  lines           line            ling            ling           
+  lingare         lingar          linger          linger         
+  lingered        linger          lingers         linger         
+  linguist        linguist        lining          line           
+  link            link            links           link           
+  linsey          linsei          linstock        linstock       
+  linta           linta           lion            lion           
+  lionel          lionel          lioness         lioness        
+  lions           lion            lip             lip            
+  lipp            lipp            lips            lip            
+  lipsbury        lipsburi        liquid          liquid         
+  liquor          liquor          liquorish       liquorish      
+  liquors         liquor          lirra           lirra          
+  lisbon          lisbon          lisp            lisp           
+  lisping         lisp            list            list           
+  listen          listen          listening       listen         
+  lists           list            literatured     literatur      
+  lither          lither          litter          litter         
+  little          littl           littlest        littlest       
+  liv             liv             live            live           
+  lived           live            livelier        liveli         
+  livelihood      livelihood      livelong        livelong       
+  lively          live            liver           liver          
+  liveries        liveri          livers          liver          
+  livery          liveri          lives           live           
+  livest          livest          liveth          liveth         
+  livia           livia           living          live           
+  livings         live            lizard          lizard         
+  lizards         lizard          ll              ll             
+  lll             lll             llous           llou           
+  lnd             lnd             lo              lo             
+  loa             loa             loach           loach          
+  load            load            loaden          loaden         
+  loading         load            loads           load           
+  loaf            loaf            loam            loam           
+  loan            loan            loath           loath          
+  loathe          loath           loathed         loath          
+  loather         loather         loathes         loath          
+  loathing        loath           loathly         loathli        
+  loathness       loath           loathsome       loathsom       
+  loathsomeness   loathsom        loathsomest     loathsomest    
+  loaves          loav            lob             lob            
+  lobbies         lobbi           lobby           lobbi          
+  local           local           lochaber        lochab         
+  lock            lock            locked          lock           
+  locking         lock            lockram         lockram        
+  locks           lock            locusts         locust         
+  lode            lode            lodg            lodg           
+  lodge           lodg            lodged          lodg           
+  lodgers         lodger          lodges          lodg           
+  lodging         lodg            lodgings        lodg           
+  lodovico        lodovico        lodowick        lodowick       
+  lofty           lofti           log             log            
+  logger          logger          loggerhead      loggerhead     
+  loggerheads     loggerhead      loggets         logget         
+  logic           logic           logs            log            
+  loins           loin            loiter          loiter         
+  loiterer        loiter          loiterers       loiter         
+  loitering       loiter          lolling         loll           
+  lolls           loll            lombardy        lombardi       
+  london          london          londoners       london         
+  lone            lone            loneliness      loneli         
+  lonely          lone            long            long           
+  longaville      longavil        longboat        longboat       
+  longed          long            longer          longer         
+  longest         longest         longeth         longeth        
+  longing         long            longings        long           
+  longly          longli          longs           long           
+  longtail        longtail        loo             loo            
+  loof            loof            look            look           
+  looked          look            looker          looker         
+  lookers         looker          lookest         lookest        
+  looking         look            looks           look           
+  loon            loon            loop            loop           
+  loos            loo             loose           loos           
+  loosed          loos            loosely         loos           
+  loosen          loosen          loosing         loos           
+  lop             lop             lopp            lopp           
+  loquitur        loquitur        lord            lord           
+  lorded          lord            lording         lord           
+  lordings        lord            lordliness      lordli         
+  lordly          lordli          lords           lord           
+  lordship        lordship        lordships       lordship       
+  lorenzo         lorenzo         lorn            lorn           
+  lorraine        lorrain         lorship         lorship        
+  los             lo              lose            lose           
+  loser           loser           losers          loser          
+  loses           lose            losest          losest         
+  loseth          loseth          losing          lose           
+  loss            loss            losses          loss           
+  lost            lost            lot             lot            
+  lots            lot             lott            lott           
+  lottery         lotteri         loud            loud           
+  louder          louder          loudly          loudli         
+  lour            lour            loureth         loureth        
+  louring         lour            louse           lous           
+  louses          lous            lousy           lousi          
+  lout            lout            louted          lout           
+  louts           lout            louvre          louvr          
+  lov             lov             love            love           
+  loved           love            lovedst         lovedst        
+  lovel           lovel           lovelier        loveli         
+  loveliness      loveli          lovell          lovel          
+  lovely          love            lover           lover          
+  lovered         lover           lovers          lover          
+  loves           love            lovest          lovest         
+  loveth          loveth          loving          love           
+  lovingly        lovingli        low             low            
+  lowe            low             lower           lower          
+  lowest          lowest          lowing          low            
+  lowliness       lowli           lowly           lowli          
+  lown            lown            lowness         low            
+  loyal           loyal           loyally         loyal          
+  loyalties       loyalti         loyalty         loyalti        
+  lozel           lozel           lt              lt             
+  lubber          lubber          lubberly        lubberli       
+  luc             luc             luccicos        luccico        
+  luce            luce            lucentio        lucentio       
+  luces           luce            lucetta         lucetta        
+  luciana         luciana         lucianus        lucianu        
+  lucifer         lucif           lucifier        lucifi         
+  lucilius        luciliu         lucina          lucina         
+  lucio           lucio           lucius          luciu          
+  luck            luck            luckier         luckier        
+  luckiest        luckiest        luckily         luckili        
+  luckless        luckless        lucky           lucki          
+  lucre           lucr            lucrece         lucrec         
+  lucretia        lucretia        lucullius       luculliu       
+  lucullus        lucullu         lucy            luci           
+  lud             lud             ludlow          ludlow         
+  lug             lug             lugg            lugg           
+  luggage         luggag          luke            luke           
+  lukewarm        lukewarm        lull            lull           
+  lulla           lulla           lullaby         lullabi        
+  lulls           lull            lumbert         lumbert        
+  lump            lump            lumpish         lumpish        
+  luna            luna            lunacies        lunaci         
+  lunacy          lunaci          lunatic         lunat          
+  lunatics        lunat           lunes           lune           
+  lungs           lung            lupercal        luperc         
+  lurch           lurch           lure            lure           
+  lurk            lurk            lurketh         lurketh        
+  lurking         lurk            lurks           lurk           
+  luscious        lusciou         lush            lush           
+  lust            lust            lusted          lust           
+  luster          luster          lustful         lust           
+  lustier         lustier         lustiest        lustiest       
+  lustig          lustig          lustihood       lustihood      
+  lustily         lustili         lustre          lustr          
+  lustrous        lustrou         lusts           lust           
+  lusty           lusti           lute            lute           
+  lutes           lute            lutestring      lutestr        
+  lutheran        lutheran        luxurious       luxuri         
+  luxuriously     luxuri          luxury          luxuri         
+  ly              ly              lycaonia        lycaonia       
+  lycurguses      lycurgus        lydia           lydia          
+  lye             lye             lyen            lyen           
+  lying           ly              lym             lym            
+  lymoges         lymog           lynn            lynn           
+  lysander        lysand          m               m              
+  ma              ma              maan            maan           
+  mab             mab             macbeth         macbeth        
+  maccabaeus      maccabaeu       macdonwald      macdonwald     
+  macduff         macduff         mace            mace           
+  macedon         macedon         maces           mace           
+  machiavel       machiavel       machination     machin         
+  machinations    machin          machine         machin         
+  mack            mack            macmorris       macmorri       
+  maculate        macul           maculation      macul          
+  mad             mad             madam           madam          
+  madame          madam           madams          madam          
+  madcap          madcap          madded          mad            
+  madding         mad             made            made           
+  madeira         madeira         madly           madli          
+  madman          madman          madmen          madmen         
+  madness         mad             madonna         madonna        
+  madrigals       madrig          mads            mad            
+  maecenas        maecena         maggot          maggot         
+  maggots         maggot          magic           magic          
+  magical         magic           magician        magician       
+  magistrate      magistr         magistrates     magistr        
+  magnanimity     magnanim        magnanimous     magnanim       
+  magni           magni           magnifi         magnifi        
+  magnificence    magnific        magnificent     magnific       
+  magnifico       magnifico       magnificoes     magnifico      
+  magnus          magnu           mahomet         mahomet        
+  mahu            mahu            maid            maid           
+  maiden          maiden          maidenhead      maidenhead     
+  maidenheads     maidenhead      maidenhood      maidenhood     
+  maidenhoods     maidenhood      maidenliest     maidenliest    
+  maidenly        maidenli        maidens         maiden         
+  maidhood        maidhood        maids           maid           
+  mail            mail            mailed          mail           
+  mails           mail            maim            maim           
+  maimed          maim            maims           maim           
+  main            main            maincourse      maincours      
+  maine           main            mainly          mainli         
+  mainmast        mainmast        mains           main           
+  maintain        maintain        maintained      maintain       
+  maintains       maintain        maintenance     mainten        
+  mais            mai             maison          maison         
+  majestas        majesta         majestee        majeste        
+  majestic        majest          majestical      majest         
+  majestically    majest          majesties       majesti        
+  majesty         majesti         major           major          
+  majority        major           mak             mak            
+  make            make            makeless        makeless       
+  maker           maker           makers          maker          
+  makes           make            makest          makest         
+  maketh          maketh          making          make           
+  makings         make            mal             mal            
+  mala            mala            maladies        maladi         
+  malady          maladi          malapert        malapert       
+  malcolm         malcolm         malcontent      malcont        
+  malcontents     malcont         male            male           
+  maledictions    maledict        malefactions    malefact       
+  malefactor      malefactor      malefactors     malefactor     
+  males           male            malevolence     malevol        
+  malevolent      malevol         malhecho        malhecho       
+  malice          malic           malicious       malici         
+  maliciously     malici          malign          malign         
+  malignancy      malign          malignant       malign         
+  malignantly     malignantli     malkin          malkin         
+  mall            mall            mallard         mallard        
+  mallet          mallet          mallows         mallow         
+  malmsey         malmsei         malt            malt           
+  maltworms       maltworm        malvolio        malvolio       
+  mamillius       mamilliu        mammering       mammer         
+  mammet          mammet          mammets         mammet         
+  mammock         mammock         man             man            
+  manacle         manacl          manacles        manacl         
+  manage          manag           managed         manag          
+  manager         manag           managing        manag          
+  manakin         manakin         manchus         manchu         
+  mandate         mandat          mandragora      mandragora     
+  mandrake        mandrak         mandrakes       mandrak        
+  mane            mane            manent          manent         
+  manes           mane            manet           manet          
+  manfully        manfulli        mangle          mangl          
+  mangled         mangl           mangles         mangl          
+  mangling        mangl           mangy           mangi          
+  manhood         manhood         manhoods        manhood        
+  manifest        manifest        manifested      manifest       
+  manifests       manifest        manifold        manifold       
+  manifoldly      manifoldli      manka           manka          
+  mankind         mankind         manlike         manlik         
+  manly           manli           mann            mann           
+  manna           manna           manner          manner         
+  mannerly        mannerli        manners         manner         
+  manningtree     manningtre      mannish         mannish        
+  manor           manor           manors          manor          
+  mans            man             mansion         mansion        
+  mansionry       mansionri       mansions        mansion        
+  manslaughter    manslaught      mantle          mantl          
+  mantled         mantl           mantles         mantl          
+  mantua          mantua          mantuan         mantuan        
+  manual          manual          manure          manur          
+  manured         manur           manus           manu           
+  many            mani            map             map            
+  mapp            mapp            maps            map            
+  mar             mar             marble          marbl          
+  marbled         marbl           marcade         marcad         
+  marcellus       marcellu        march           march          
+  marches         march           marcheth        marcheth       
+  marching        march           marchioness     marchio        
+  marchpane       marchpan        marcians        marcian        
+  marcius         marciu          marcus          marcu          
+  mardian         mardian         mare            mare           
+  mares           mare            marg            marg           
+  margarelon      margarelon      margaret        margaret       
+  marge           marg            margent         margent        
+  margery         margeri         maria           maria          
+  marian          marian          mariana         mariana        
+  maries          mari            marigold        marigold       
+  mariner         marin           mariners        marin          
+  maritime        maritim         marjoram        marjoram       
+  mark            mark            marked          mark           
+  market          market          marketable      market         
+  marketplace     marketplac      markets         market         
+  marking         mark            markman         markman        
+  marks           mark            marl            marl           
+  marle           marl            marmoset        marmoset       
+  marquess        marquess        marquis         marqui         
+  marr            marr            marriage        marriag        
+  marriages       marriag         married         marri          
+  marries         marri           marring         mar            
+  marrow          marrow          marrowless      marrowless     
+  marrows         marrow          marry           marri          
+  marrying        marri           mars            mar            
+  marseilles      marseil         marsh           marsh          
+  marshal         marshal         marshalsea      marshalsea     
+  marshalship     marshalship     mart            mart           
+  marted          mart            martem          martem         
+  martext         martext         martial         martial        
+  martin          martin          martino         martino        
+  martius         martiu          martlemas       martlema       
+  martlet         martlet         marts           mart           
+  martyr          martyr          martyrs         martyr         
+  marullus        marullu         marv            marv           
+  marvel          marvel          marvell         marvel         
+  marvellous      marvel          marvellously    marvel         
+  marvels         marvel          mary            mari           
+  mas             ma              masculine       masculin       
+  masham          masham          mask            mask           
+  masked          mask            masker          masker         
+  maskers         masker          masking         mask           
+  masks           mask            mason           mason          
+  masonry         masonri         masons          mason          
+  masque          masqu           masquers        masquer        
+  masques         masqu           masquing        masqu          
+  mass            mass            massacre        massacr        
+  massacres       massacr         masses          mass           
+  massy           massi           mast            mast           
+  mastcr          mastcr          master          master         
+  masterdom       masterdom       masterest       masterest      
+  masterless      masterless      masterly        masterli       
+  masterpiece     masterpiec      masters         master         
+  mastership      mastership      mastic          mastic         
+  mastiff         mastiff         mastiffs        mastiff        
+  masts           mast            match           match          
+  matches         match           matcheth        matcheth       
+  matching        match           matchless       matchless      
+  mate            mate            mated           mate           
+  mater           mater           material        materi         
+  mates           mate            mathematics     mathemat       
+  matin           matin           matron          matron         
+  matrons         matron          matter          matter         
+  matters         matter          matthew         matthew        
+  mattock         mattock         mattress        mattress       
+  mature          matur           maturity        matur          
+  maud            maud            maudlin         maudlin        
+  maugre          maugr           maul            maul           
+  maund           maund           mauri           mauri          
+  mauritania      mauritania      mauvais         mauvai         
+  maw             maw             maws            maw            
+  maxim           maxim           may             mai            
+  mayday          maydai          mayest          mayest         
+  mayor           mayor           maypole         maypol         
+  mayst           mayst           maz             maz            
+  maze            maze            mazed           maze           
+  mazes           maze            mazzard         mazzard        
+  me              me              meacock         meacock        
+  mead            mead            meadow          meadow         
+  meadows         meadow          meads           mead           
+  meagre          meagr           meal            meal           
+  meals           meal            mealy           meali          
+  mean            mean            meanders        meander        
+  meaner          meaner          meanest         meanest        
+  meaneth         meaneth         meaning         mean           
+  meanings        mean            meanly          meanli         
+  means           mean            meant           meant          
+  meantime        meantim         meanwhile       meanwhil       
+  measles         measl           measur          measur         
+  measurable      measur          measure         measur         
+  measured        measur          measureless     measureless    
+  measures        measur          measuring       measur         
+  meat            meat            meats           meat           
+  mechanic        mechan          mechanical      mechan         
+  mechanicals     mechan          mechanics       mechan         
+  mechante        mechant         med             med            
+  medal           medal           meddle          meddl          
+  meddler         meddler         meddling        meddl          
+  mede            mede            medea           medea          
+  media           media           mediation       mediat         
+  mediators       mediat          medice          medic          
+  medicinal       medicin         medicine        medicin        
+  medicines       medicin         meditate        medit          
+  meditates       medit           meditating      medit          
+  meditation      medit           meditations     medit          
+  mediterranean   mediterranean   mediterraneum   mediterraneum  
+  medlar          medlar          medlars         medlar         
+  meed            meed            meeds           meed           
+  meek            meek            meekly          meekli         
+  meekness        meek            meet            meet           
+  meeter          meeter          meetest         meetest        
+  meeting         meet            meetings        meet           
+  meetly          meetli          meetness        meet           
+  meets           meet            meg             meg            
+  mehercle        mehercl         meilleur        meilleur       
+  meiny           meini           meisen          meisen         
+  melancholies    melancholi      melancholy      melancholi     
+  melford         melford         mell            mell           
+  mellifluous     melliflu        mellow          mellow         
+  mellowing       mellow          melodious       melodi         
+  melody          melodi          melt            melt           
+  melted          melt            melteth         melteth        
+  melting         melt            melts           melt           
+  melun           melun           member          member         
+  members         member          memento         memento        
+  memorable       memor           memorandums     memorandum     
+  memorial        memori          memorials       memori         
+  memories        memori          memoriz         memoriz        
+  memorize        memor           memory          memori         
+  memphis         memphi          men             men            
+  menac           menac           menace          menac          
+  menaces         menac           menaphon        menaphon       
+  menas           mena            mend            mend           
+  mended          mend            mender          mender         
+  mending         mend            mends           mend           
+  menecrates      menecr          menelaus        menelau        
+  menenius        meneniu         mental          mental         
+  menteith        menteith        mention         mention        
+  mentis          menti           menton          menton         
+  mephostophilus  mephostophilu   mer             mer            
+  mercatante      mercatant       mercatio        mercatio       
+  mercenaries     mercenari       mercenary       mercenari      
+  mercer          mercer          merchandise     merchandis     
+  merchandized    merchand        merchant        merchant       
+  merchants       merchant        mercies         merci          
+  merciful        merci           mercifully      mercifulli     
+  merciless       merciless       mercurial       mercuri        
+  mercuries       mercuri         mercury         mercuri        
+  mercutio        mercutio        mercy           merci          
+  mere            mere            mered           mere           
+  merely          mere            merest          merest         
+  meridian        meridian        merit           merit          
+  merited         merit           meritorious     meritori       
+  merits          merit           merlin          merlin         
+  mermaid         mermaid         mermaids        mermaid        
+  merops          merop           merrier         merrier        
+  merriest        merriest        merrily         merrili        
+  merriman        merriman        merriment       merriment      
+  merriments      merriment       merriness       merri          
+  merry           merri           mervailous      mervail        
+  mes             me              mesh            mesh           
+  meshes          mesh            mesopotamia     mesopotamia    
+  mess            mess            message         messag         
+  messages        messag          messala         messala        
+  messaline       messalin        messenger       messeng        
+  messengers      messeng         messes          mess           
+  messina         messina         met             met            
+  metal           metal           metals          metal          
+  metamorphis     metamorphi      metamorphoses   metamorphos    
+  metaphor        metaphor        metaphysical    metaphys       
+  metaphysics     metaphys        mete            mete           
+  metellus        metellu         meteor          meteor         
+  meteors         meteor          meteyard        meteyard       
+  metheglin       metheglin       metheglins      metheglin      
+  methink         methink         methinks        methink        
+  method          method          methods         method         
+  methought       methought       methoughts      methought      
+  metre           metr            metres          metr           
+  metropolis      metropoli       mette           mett           
+  mettle          mettl           mettled         mettl          
+  meus            meu             mew             mew            
+  mewed           mew             mewling         mewl           
+  mexico          mexico          mi              mi             
+  mice            mice            michael         michael        
+  michaelmas      michaelma       micher          micher         
+  miching         mich            mickle          mickl          
+  microcosm       microcosm       mid             mid            
+  midas           mida            middest         middest        
+  middle          middl           middleham       middleham      
+  midnight        midnight        midriff         midriff        
+  midst           midst           midsummer       midsumm        
+  midway          midwai          midwife         midwif         
+  midwives        midwiv          mienne          mienn          
+  might           might           mightful        might          
+  mightier        mightier        mightiest       mightiest      
+  mightily        mightili        mightiness      mighti         
+  mightst         mightst         mighty          mighti         
+  milan           milan           milch           milch          
+  mild            mild            milder          milder         
+  mildest         mildest         mildew          mildew         
+  mildews         mildew          mildly          mildli         
+  mildness        mild            mile            mile           
+  miles           mile            milford         milford        
+  militarist      militarist      military        militari       
+  milk            milk            milking         milk           
+  milkmaid        milkmaid        milks           milk           
+  milksops        milksop         milky           milki          
+  mill            mill            mille           mill           
+  miller          miller          milliner        millin         
+  million         million         millioned       million        
+  millions        million         mills           mill           
+  millstones      millston        milo            milo           
+  mimic           mimic           minc            minc           
+  mince           minc            minces          minc           
+  mincing         minc            mind            mind           
+  minded          mind            minding         mind           
+  mindless        mindless        minds           mind           
+  mine            mine            mineral         miner          
+  minerals        miner           minerva         minerva        
+  mines           mine            mingle          mingl          
+  mingled         mingl           mingling        mingl          
+  minikin         minikin         minim           minim          
+  minime          minim           minimo          minimo         
+  minimus         minimu          mining          mine           
+  minion          minion          minions         minion         
+  minist          minist          minister        minist         
+  ministers       minist          ministration    ministr        
+  minnow          minnow          minnows         minnow         
+  minola          minola          minority        minor          
+  minos           mino            minotaurs       minotaur       
+  minstrel        minstrel        minstrels       minstrel       
+  minstrelsy      minstrelsi      mint            mint           
+  mints           mint            minute          minut          
+  minutely        minut           minutes         minut          
+  minx            minx            mio             mio            
+  mir             mir             mirable         mirabl         
+  miracle         miracl          miracles        miracl         
+  miraculous      miracul         miranda         miranda        
+  mire            mire            mirror          mirror         
+  mirrors         mirror          mirth           mirth          
+  mirthful        mirth           miry            miri           
+  mis             mi              misadventur     misadventur    
+  misadventure    misadventur     misanthropos    misanthropo    
+  misapplied      misappli        misbecame       misbecam       
+  misbecom        misbecom        misbecome       misbecom       
+  misbegot        misbegot        misbegotten     misbegotten    
+  misbeliever     misbeliev       misbelieving    misbeliev      
+  misbhav         misbhav         miscall         miscal         
+  miscalled       miscal          miscarried      miscarri       
+  miscarries      miscarri        miscarry        miscarri       
+  miscarrying     miscarri        mischance       mischanc       
+  mischances      mischanc        mischief        mischief       
+  mischiefs       mischief        mischievous     mischiev       
+  misconceived    misconceiv      misconst        misconst       
+  misconster      misconst        misconstruction misconstruct   
+  misconstrued    misconstru      misconstrues    misconstru     
+  miscreant       miscreant       miscreate       miscreat       
+  misdeed         misde           misdeeds        misde          
+  misdemean       misdemean       misdemeanours   misdemeanour   
+  misdoubt        misdoubt        misdoubteth     misdoubteth    
+  misdoubts       misdoubt        misenum         misenum        
+  miser           miser           miserable       miser          
+  miserably       miser           misericorde     misericord     
+  miseries        miseri          misers          miser          
+  misery          miseri          misfortune      misfortun      
+  misfortunes     misfortun       misgive         misgiv         
+  misgives        misgiv          misgiving       misgiv         
+  misgoverned     misgovern       misgovernment   misgovern      
+  misgraffed      misgraf         misguide        misguid        
+  mishap          mishap          mishaps         mishap         
+  misheard        misheard        misinterpret    misinterpret   
+  mislead         mislead         misleader       mislead        
+  misleaders      mislead         misleading      mislead        
+  misled          misl            mislike         mislik         
+  misord          misord          misplac         misplac        
+  misplaced       misplac         misplaces       misplac        
+  mispris         mispri          misprised       mispris        
+  misprision      mispris         misprizing      mispriz        
+  misproud        misproud        misquote        misquot        
+  misreport       misreport       miss            miss           
+  missed          miss            misses          miss           
+  misshap         misshap         misshapen       misshapen      
+  missheathed     missheath       missing         miss           
+  missingly       missingli       missions        mission        
+  missive         missiv          missives        missiv         
+  misspoke        misspok         mist            mist           
+  mista           mista           mistak          mistak         
+  mistake         mistak          mistaken        mistaken       
+  mistakes        mistak          mistaketh       mistaketh      
+  mistaking       mistak          mistakings      mistak         
+  mistemp         mistemp         mistempered     mistemp        
+  misterm         misterm         mistful         mist           
+  misthink        misthink        misthought      misthought     
+  mistletoe       mistleto        mistook         mistook        
+  mistreadings    mistread        mistress        mistress       
+  mistresses      mistress        mistresss       mistresss      
+  mistriship      mistriship      mistrust        mistrust       
+  mistrusted      mistrust        mistrustful     mistrust       
+  mistrusting     mistrust        mists           mist           
+  misty           misti           misus           misu           
+  misuse          misus           misused         misus          
+  misuses         misus           mites           mite           
+  mithridates     mithrid         mitigate        mitig          
+  mitigation      mitig           mix             mix            
+  mixed           mix             mixture         mixtur         
+  mixtures        mixtur          mm              mm             
+  mnd             mnd             moan            moan           
+  moans           moan            moat            moat           
+  moated          moat            mobled          mobl           
+  mock            mock            mockable        mockabl        
+  mocker          mocker          mockeries       mockeri        
+  mockers         mocker          mockery         mockeri        
+  mocking         mock            mocks           mock           
+  mockvater       mockvat         mockwater       mockwat        
+  model           model           modena          modena         
+  moderate        moder           moderately      moder          
+  moderation      moder           modern          modern         
+  modest          modest          modesties       modesti        
+  modestly        modestli        modesty         modesti        
+  modicums        modicum         modo            modo           
+  module          modul           moe             moe            
+  moi             moi             moiety          moieti         
+  moist           moist           moisten         moisten        
+  moisture        moistur         moldwarp        moldwarp       
+  mole            mole            molehill        molehil        
+  moles           mole            molest          molest         
+  molestation     molest          mollification   mollif         
+  mollis          molli           molten          molten         
+  molto           molto           mome            mome           
+  moment          moment          momentary       momentari      
+  moming          mome            mon             mon            
+  monachum        monachum        monarch         monarch        
+  monarchies      monarchi        monarchize      monarch        
+  monarcho        monarcho        monarchs        monarch        
+  monarchy        monarchi        monast          monast         
+  monastery       monasteri       monastic        monast         
+  monday          mondai          monde           mond           
+  money           monei           moneys          monei          
+  mong            mong            monger          monger         
+  mongers         monger          monging         mong           
+  mongrel         mongrel         mongrels        mongrel        
+  mongst          mongst          monk            monk           
+  monkey          monkei          monkeys         monkei         
+  monks           monk            monmouth        monmouth       
+  monopoly        monopoli        mons            mon            
+  monsieur        monsieur        monsieurs       monsieur       
+  monster         monster         monsters        monster        
+  monstrous       monstrou        monstrously     monstrous      
+  monstrousness   monstrous       monstruosity    monstruos      
+  montacute       montacut        montage         montag         
+  montague        montagu         montagues       montagu        
+  montano         montano         montant         montant        
+  montez          montez          montferrat      montferrat     
+  montgomery      montgomeri      month           month          
+  monthly         monthli         months          month          
+  montjoy         montjoi         monument        monument       
+  monumental      monument        monuments       monument       
+  mood            mood            moods           mood           
+  moody           moodi           moon            moon           
+  moonbeams       moonbeam        moonish         moonish        
+  moonlight       moonlight       moons           moon           
+  moonshine       moonshin        moonshines      moonshin       
+  moor            moor            moorfields      moorfield      
+  moors           moor            moorship        moorship       
+  mop             mop             mope            mope           
+  moping          mope            mopping         mop            
+  mopsa           mopsa           moral           moral          
+  moraler         moral           morality        moral          
+  moralize        moral           mordake         mordak         
+  more            more            moreover        moreov         
+  mores           more            morgan          morgan         
+  mori            mori            morisco         morisco        
+  morn            morn            morning         morn           
+  mornings        morn            morocco         morocco        
+  morris          morri           morrow          morrow         
+  morrows         morrow          morsel          morsel         
+  morsels         morsel          mort            mort           
+  mortal          mortal          mortality       mortal         
+  mortally        mortal          mortals         mortal         
+  mortar          mortar          mortgaged       mortgag        
+  mortified       mortifi         mortifying      mortifi        
+  mortimer        mortim          mortimers       mortim         
+  mortis          morti           mortise         mortis         
+  morton          morton          mose            mose           
+  moss            moss            mossgrown       mossgrown      
+  most            most            mote            mote           
+  moth            moth            mother          mother         
+  mothers         mother          moths           moth           
+  motion          motion          motionless      motionless     
+  motions         motion          motive          motiv          
+  motives         motiv           motley          motlei         
+  mots            mot             mought          mought         
+  mould           mould           moulded         mould          
+  mouldeth        mouldeth        moulds          mould          
+  mouldy          mouldi          moult           moult          
+  moulten         moulten         mounch          mounch         
+  mounseur        mounseur        mounsieur       mounsieur      
+  mount           mount           mountain        mountain       
+  mountaineer     mountain        mountaineers    mountain       
+  mountainous     mountain        mountains       mountain       
+  mountant        mountant        mountanto       mountanto      
+  mountebank      mountebank      mountebanks     mountebank     
+  mounted         mount           mounteth        mounteth       
+  mounting        mount           mounts          mount          
+  mourn           mourn           mourned         mourn          
+  mourner         mourner         mourners        mourner        
+  mournful        mourn           mournfully      mournfulli     
+  mourning        mourn           mourningly      mourningli     
+  mournings       mourn           mourns          mourn          
+  mous            mou             mouse           mous           
+  mousetrap       mousetrap       mousing         mous           
+  mouth           mouth           mouthed         mouth          
+  mouths          mouth           mov             mov            
+  movables        movabl          move            move           
+  moveable        moveabl         moveables       moveabl        
+  moved           move            mover           mover          
+  movers          mover           moves           move           
+  moveth          moveth          moving          move           
+  movingly        movingli        movousus        movousu        
+  mow             mow             mowbray         mowbrai        
+  mower           mower           mowing          mow            
+  mows            mow             moy             moi            
+  moys            moi             moyses          moys           
+  mrs             mr              much            much           
+  muck            muck            mud             mud            
+  mudded          mud             muddied         muddi          
+  muddy           muddi           muffins         muffin         
+  muffl           muffl           muffle          muffl          
+  muffled         muffl           muffler         muffler        
+  muffling        muffl           mugger          mugger         
+  mugs            mug             mulberries      mulberri       
+  mulberry        mulberri        mule            mule           
+  mules           mule            muleteers       mulet          
+  mulier          mulier          mulieres        mulier         
+  muliteus        muliteu         mull            mull           
+  mulmutius       mulmutiu        multiplied      multipli       
+  multiply        multipli        multiplying     multipli       
+  multipotent     multipot        multitude       multitud       
+  multitudes      multitud        multitudinous   multitudin     
+  mum             mum             mumble          mumbl          
+  mumbling        mumbl           mummers         mummer         
+  mummy           mummi           mun             mun            
+  munch           munch           muniments       muniment       
+  munition        munit           murd            murd           
+  murder          murder          murdered        murder         
+  murderer        murder          murderers       murder         
+  murdering       murder          murderous       murder         
+  murders         murder          mure            mure           
+  murk            murk            murkiest        murkiest       
+  murky           murki           murmur          murmur         
+  murmurers       murmur          murmuring       murmur         
+  murrain         murrain         murray          murrai         
+  murrion         murrion         murther         murther        
+  murtherer       murther         murtherers      murther        
+  murthering      murther         murtherous      murther        
+  murthers        murther         mus             mu             
+  muscadel        muscadel        muscovites      muscovit       
+  muscovits       muscovit        muscovy         muscovi        
+  muse            muse            muses           muse           
+  mush            mush            mushrooms       mushroom       
+  music           music           musical         music          
+  musician        musician        musicians       musician       
+  musics          music           musing          muse           
+  musings         muse            musk            musk           
+  musket          musket          muskets         musket         
+  muskos          musko           muss            muss           
+  mussel          mussel          mussels         mussel         
+  must            must            mustachio       mustachio      
+  mustard         mustard         mustardseed     mustardse      
+  muster          muster          mustering       muster         
+  musters         muster          musty           musti          
+  mutability      mutabl          mutable         mutabl         
+  mutation        mutat           mutations       mutat          
+  mute            mute            mutes           mute           
+  mutest          mutest          mutine          mutin          
+  mutineer        mutin           mutineers       mutin          
+  mutines         mutin           mutinies        mutini         
+  mutinous        mutin           mutiny          mutini         
+  mutius          mutiu           mutter          mutter         
+  muttered        mutter          mutton          mutton         
+  muttons         mutton          mutual          mutual         
+  mutualities     mutual          mutually        mutual         
+  muzzl           muzzl           muzzle          muzzl          
+  muzzled         muzzl           mv              mv             
+  mww             mww             my              my             
+  mynheers        mynheer         myrmidon        myrmidon       
+  myrmidons       myrmidon        myrtle          myrtl          
+  myself          myself          myst            myst           
+  mysteries       mysteri         mystery         mysteri        
+  n               n               nag             nag            
+  nage            nage            nags            nag            
+  naiads          naiad           nail            nail           
+  nails           nail            nak             nak            
+  naked           nake            nakedness       naked          
+  nal             nal             nam             nam            
+  name            name            named           name           
+  nameless        nameless        namely          name           
+  names           name            namest          namest         
+  naming          name            nan             nan            
+  nance           nanc            nap             nap            
+  nape            nape            napes           nape           
+  napkin          napkin          napkins         napkin         
+  naples          napl            napless         napless        
+  napping         nap             naps            nap            
+  narbon          narbon          narcissus       narcissu       
+  narines         narin           narrow          narrow         
+  narrowly        narrowli        naso            naso           
+  nasty           nasti           nathaniel       nathaniel      
+  natifs          natif           nation          nation         
+  nations         nation          native          nativ          
+  nativity        nativ           natur           natur          
+  natural         natur           naturalize      natur          
+  naturally       natur           nature          natur          
+  natured         natur           natures         natur          
+  natus           natu            naught          naught         
+  naughtily       naughtili       naughty         naughti        
+  navarre         navarr          nave            nave           
+  navel           navel           navigation      navig          
+  navy            navi            nay             nai            
+  nayward         nayward         nayword         nayword        
+  nazarite        nazarit         ne              ne             
+  neaf            neaf            neamnoins       neamnoin       
+  neanmoins       neanmoin        neapolitan      neapolitan     
+  neapolitans     neapolitan      near            near           
+  nearer          nearer          nearest         nearest        
+  nearly          nearli          nearness        near           
+  neat            neat            neatly          neatli         
+  neb             neb             nebour          nebour         
+  nebuchadnezzar  nebuchadnezzar  nec             nec            
+  necessaries     necessari       necessarily     necessarili    
+  necessary       necessari       necessitied     necess         
+  necessities     necess          necessity       necess         
+  neck            neck            necklace        necklac        
+  necks           neck            nectar          nectar         
+  ned             ned             nedar           nedar          
+  need            need            needed          need           
+  needer          needer          needful         need           
+  needfull        needful         needing         need           
+  needle          needl           needles         needl          
+  needless        needless        needly          needli         
+  needs           need            needy           needi          
+  neer            neer            neeze           neez           
+  nefas           nefa            negation        negat          
+  negative        neg             negatives       neg            
+  neglect         neglect         neglected       neglect        
+  neglecting      neglect         neglectingly    neglectingli   
+  neglection      neglect         negligence      neglig         
+  negligent       neglig          negotiate       negoti         
+  negotiations    negoti          negro           negro          
+  neigh           neigh           neighbors       neighbor       
+  neighbour       neighbour       neighbourhood   neighbourhood  
+  neighbouring    neighbour       neighbourly     neighbourli    
+  neighbours      neighbour       neighing        neigh          
+  neighs          neigh           neither         neither        
+  nell            nell            nemean          nemean         
+  nemesis         nemesi          neoptolemus     neoptolemu     
+  nephew          nephew          nephews         nephew         
+  neptune         neptun          ner             ner            
+  nereides        nereid          nerissa         nerissa        
+  nero            nero            neroes          nero           
+  ners            ner             nerve           nerv           
+  nerves          nerv            nervii          nervii         
+  nervy           nervi           nessus          nessu          
+  nest            nest            nestor          nestor         
+  nests           nest            net             net            
+  nether          nether          netherlands     netherland     
+  nets            net             nettle          nettl          
+  nettled         nettl           nettles         nettl          
+  neuter          neuter          neutral         neutral        
+  nev             nev             never           never          
+  nevil           nevil           nevils          nevil          
+  new             new             newborn         newborn        
+  newer           newer           newest          newest         
+  newgate         newgat          newly           newli          
+  newness         new             news            new            
+  newsmongers     newsmong        newt            newt           
+  newts           newt            next            next           
+  nibbling        nibbl           nicanor         nicanor        
+  nice            nice            nicely          nice           
+  niceness        nice            nicer           nicer          
+  nicety          niceti          nicholas        nichola        
+  nick            nick            nickname        nicknam        
+  nicks           nick            niece           niec           
+  nieces          niec            niggard         niggard        
+  niggarding      niggard         niggardly       niggardli      
+  nigh            nigh            night           night          
+  nightcap        nightcap        nightcaps       nightcap       
+  nighted         night           nightgown       nightgown      
+  nightingale     nightingal      nightingales    nightingal     
+  nightly         nightli         nightmare       nightmar       
+  nights          night           nightwork       nightwork      
+  nihil           nihil           nile            nile           
+  nill            nill            nilus           nilu           
+  nimble          nimbl           nimbleness      nimbl          
+  nimbler         nimbler         nimbly          nimbl          
+  nine            nine            nineteen        nineteen       
+  ning            ning            ningly          ningli         
+  ninny           ninni           ninth           ninth          
+  ninus           ninu            niobe           niob           
+  niobes          niob            nip             nip            
+  nipp            nipp            nipping         nip            
+  nipple          nippl           nips            nip            
+  nit             nit             nly             nly            
+  nnight          nnight          nnights         nnight         
+  no              no              noah            noah           
+  nob             nob             nobility        nobil          
+  nobis           nobi            noble           nobl           
+  nobleman        nobleman        noblemen        noblemen       
+  nobleness       nobl            nobler          nobler         
+  nobles          nobl            noblesse        nobless        
+  noblest         noblest         nobly           nobli          
+  nobody          nobodi          noces           noce           
+  nod             nod             nodded          nod            
+  nodding         nod             noddle          noddl          
+  noddles         noddl           noddy           noddi          
+  nods            nod             noes            noe            
+  nointed         noint           nois            noi            
+  noise           nois            noiseless       noiseless      
+  noisemaker      noisemak        noises          nois           
+  noisome         noisom          nole            nole           
+  nominate        nomin           nominated       nomin          
+  nomination      nomin           nominativo      nominativo     
+  non             non             nonage          nonag          
+  nonce           nonc            none            none           
+  nonino          nonino          nonny           nonni          
+  nonpareil       nonpareil       nonsuits        nonsuit        
+  nony            noni            nook            nook           
+  nooks           nook            noon            noon           
+  noonday         noondai         noontide        noontid        
+  nor             nor             norbery         norberi        
+  norfolk         norfolk         norman          norman         
+  normandy        normandi        normans         norman         
+  north           north           northampton     northampton    
+  northamptonshire northamptonshir northerly       northerli      
+  northern        northern        northgate       northgat       
+  northumberland  northumberland  northumberlands northumberland 
+  northward       northward       norway          norwai         
+  norways         norwai          norwegian       norwegian      
+  norweyan        norweyan        nos             no             
+  nose            nose            nosegays        nosegai        
+  noseless        noseless        noses           nose           
+  noster          noster          nostra          nostra         
+  nostril         nostril         nostrils        nostril        
+  not             not             notable         notabl         
+  notably         notabl          notary          notari         
+  notch           notch           note            note           
+  notebook        notebook        noted           note           
+  notedly         notedli         notes           note           
+  notest          notest          noteworthy      noteworthi     
+  nothing         noth            nothings        noth           
+  notice          notic           notify          notifi         
+  noting          note            notion          notion         
+  notorious       notori          notoriously     notori         
+  notre           notr            notwithstanding notwithstand   
+  nought          nought          noun            noun           
+  nouns           noun            nourish         nourish        
+  nourished       nourish         nourisher       nourish        
+  nourishes       nourish         nourisheth      nourisheth     
+  nourishing      nourish         nourishment     nourish        
+  nous            nou             novel           novel          
+  novelties       novelti         novelty         novelti        
+  noverbs         noverb          novi            novi           
+  novice          novic           novices         novic          
+  novum           novum           now             now            
+  nowhere         nowher          noyance         noyanc         
+  ns              ns              nt              nt             
+  nubibus         nubibu          numa            numa           
+  numb            numb            number          number         
+  numbered        number          numbering       number         
+  numberless      numberless      numbers         number         
+  numbness        numb            nun             nun            
+  nuncio          nuncio          nuncle          nuncl          
+  nunnery         nunneri         nuns            nun            
+  nuntius         nuntiu          nuptial         nuptial        
+  nurs            nur             nurse           nurs           
+  nursed          nurs            nurser          nurser         
+  nursery         nurseri         nurses          nurs           
+  nurseth         nurseth         nursh           nursh          
+  nursing         nurs            nurtur          nurtur         
+  nurture         nurtur          nut             nut            
+  nuthook         nuthook         nutmeg          nutmeg         
+  nutmegs         nutmeg          nutriment       nutriment      
+  nuts            nut             nutshell        nutshel        
+  ny              ny              nym             nym            
+  nymph           nymph           nymphs          nymph          
+  o               o               oak             oak            
+  oaken           oaken           oaks            oak            
+  oared           oar             oars            oar            
+  oatcake         oatcak          oaten           oaten          
+  oath            oath            oathable        oathabl        
+  oaths           oath            oats            oat            
+  ob              ob              obduracy        obduraci       
+  obdurate        obdur           obedience       obedi          
+  obedient        obedi           obeisance       obeis          
+  oberon          oberon          obey            obei           
+  obeyed          obei            obeying         obei           
+  obeys           obei            obidicut        obidicut       
+  object          object          objected        object         
+  objections      object          objects         object         
+  oblation        oblat           oblations       oblat          
+  obligation      oblig           obligations     oblig          
+  obliged         oblig           oblique         obliqu         
+  oblivion        oblivion        oblivious       oblivi         
+  obloquy         obloqui         obscene         obscen         
+  obscenely       obscen          obscur          obscur         
+  obscure         obscur          obscured        obscur         
+  obscurely       obscur          obscures        obscur         
+  obscuring       obscur          obscurity       obscur         
+  obsequies       obsequi         obsequious      obsequi        
+  obsequiously    obsequi         observ          observ         
+  observance      observ          observances     observ         
+  observancy      observ          observant       observ         
+  observants      observ          observation     observ         
+  observe         observ          observed        observ         
+  observer        observ          observers       observ         
+  observing       observ          observingly     observingli    
+  obsque          obsqu           obstacle        obstacl        
+  obstacles       obstacl         obstinacy       obstinaci      
+  obstinate       obstin          obstinately     obstin         
+  obstruct        obstruct        obstruction     obstruct       
+  obstructions    obstruct        obtain          obtain         
+  obtained        obtain          obtaining       obtain         
+  occasion        occas           occasions       occas          
+  occident        occid           occidental      occident       
+  occulted        occult          occupat         occupat        
+  occupation      occup           occupations     occup          
+  occupied        occupi          occupies        occupi         
+  occupy          occupi          occurrence      occurr         
+  occurrences     occurr          occurrents      occurr         
+  ocean           ocean           oceans          ocean          
+  octavia         octavia         octavius        octaviu        
+  ocular          ocular          od              od             
+  odd             odd             oddest          oddest         
+  oddly           oddli           odds            odd            
+  ode             od              odes            od             
+  odious          odiou           odoriferous     odorifer       
+  odorous         odor            odour           odour          
+  odours          odour           ods             od             
+  oeillades       oeillad         oes             oe             
+  oeuvres         oeuvr           of              of             
+  ofephesus       ofephesu        off             off            
+  offal           offal           offence         offenc         
+  offenceful      offenc          offences        offenc         
+  offend          offend          offended        offend         
+  offendendo      offendendo      offender        offend         
+  offenders       offend          offendeth       offendeth      
+  offending       offend          offendress      offendress     
+  offends         offend          offense         offens         
+  offenseless     offenseless     offenses        offens         
+  offensive       offens          offer           offer          
+  offered         offer           offering        offer          
+  offerings       offer           offers          offer          
+  offert          offert          offic           offic          
+  office          offic           officed         offic          
+  officer         offic           officers        offic          
+  offices         offic           official        offici         
+  officious       offici          offspring       offspr         
+  oft             oft             often           often          
+  oftener         often           oftentimes      oftentim       
+  oh              oh              oil             oil            
+  oils            oil             oily            oili           
+  old             old             oldcastle       oldcastl       
+  olden           olden           older           older          
+  oldest          oldest          oldness         old            
+  olive           oliv            oliver          oliv           
+  olivers         oliv            olives          oliv           
+  olivia          olivia          olympian        olympian       
+  olympus         olympu          oman            oman           
+  omans           oman            omen            omen           
+  ominous         omin            omission        omiss          
+  omit            omit            omittance       omitt          
+  omitted         omit            omitting        omit           
+  omne            omn             omnes           omn            
+  omnipotent      omnipot         on              on             
+  once            onc             one             on             
+  ones            on              oneyers         oney           
+  ongles          ongl            onion           onion          
+  onions          onion           only            onli           
+  onset           onset           onward          onward         
+  onwards         onward          oo              oo             
+  ooze            ooz             oozes           ooz            
+  oozy            oozi            op              op             
+  opal            opal            ope             op             
+  open            open            opener          open           
+  opening         open            openly          openli         
+  openness        open            opens           open           
+  operant         oper            operate         oper           
+  operation       oper            operations      oper           
+  operative       oper            opes            op             
+  oph             oph             ophelia         ophelia        
+  opinion         opinion         opinions        opinion        
+  opportune       opportun        opportunities   opportun       
+  opportunity     opportun        oppos           oppo           
+  oppose          oppos           opposed         oppos          
+  opposeless      opposeless      opposer         oppos          
+  opposers        oppos           opposes         oppos          
+  opposing        oppos           opposite        opposit        
+  opposites       opposit         opposition      opposit        
+  oppositions     opposit         oppress         oppress        
+  oppressed       oppress         oppresses       oppress        
+  oppresseth      oppresseth      oppressing      oppress        
+  oppression      oppress         oppressor       oppressor      
+  opprest         opprest         opprobriously   opprobri       
+  oppugnancy      oppugn          opulency        opul           
+  opulent         opul            or              or             
+  oracle          oracl           oracles         oracl          
+  orange          orang           oration         orat           
+  orator          orat            orators         orat           
+  oratory         oratori         orb             orb            
+  orbed           orb             orbs            orb            
+  orchard         orchard         orchards        orchard        
+  ord             ord             ordain          ordain         
+  ordained        ordain          ordaining       ordain         
+  order           order           ordered         order          
+  ordering        order           orderless       orderless      
+  orderly         orderli         orders          order          
+  ordinance       ordin           ordinant        ordin          
+  ordinaries      ordinari        ordinary        ordinari       
+  ordnance        ordnanc         ords            ord            
+  ordure          ordur           ore             or             
+  organ           organ           organs          organ          
+  orgillous       orgil           orient          orient         
+  orifex          orifex          origin          origin         
+  original        origin          orisons         orison         
+  ork             ork             orlando         orlando        
+  orld            orld            orleans         orlean         
+  ornament        ornament        ornaments       ornament       
+  orodes          orod            orphan          orphan         
+  orphans         orphan          orpheus         orpheu         
+  orsino          orsino          ort             ort            
+  orthography     orthographi     orts            ort            
+  oscorbidulchos  oscorbidulcho   osier           osier          
+  osiers          osier           osprey          osprei         
+  osr             osr             osric           osric          
+  ossa            ossa            ost             ost            
+  ostent          ostent          ostentare       ostentar       
+  ostentation     ostent          ostents         ostent         
+  ostler          ostler          ostlers         ostler         
+  ostrich         ostrich         osw             osw            
+  oswald          oswald          othello         othello        
+  other           other           othergates      otherg         
+  others          other           otherwhere      otherwher      
+  otherwhiles     otherwhil       otherwise       otherwis       
+  otter           otter           ottoman         ottoman        
+  ottomites       ottomit         oublie          oubli          
+  ouches          ouch            ought           ought          
+  oui             oui             ounce           ounc           
+  ounces          ounc            ouphes          ouph           
+  our             our             ours            our            
+  ourself         ourself         ourselves       ourselv        
+  ousel           ousel           out             out            
+  outbids         outbid          outbrave        outbrav        
+  outbraves       outbrav         outbreak        outbreak       
+  outcast         outcast         outcries        outcri         
+  outcry          outcri          outdar          outdar         
+  outdare         outdar          outdares        outdar         
+  outdone         outdon          outfac          outfac         
+  outface         outfac          outfaced        outfac         
+  outfacing       outfac          outfly          outfli         
+  outfrown        outfrown        outgo           outgo          
+  outgoes         outgo           outgrown        outgrown       
+  outjest         outjest         outlaw          outlaw         
+  outlawry        outlawri        outlaws         outlaw         
+  outliv          outliv          outlive         outliv         
+  outlives        outliv          outliving       outliv         
+  outlook         outlook         outlustres      outlustr       
+  outpriz         outpriz         outrage         outrag         
+  outrageous      outrag          outrages        outrag         
+  outran          outran          outright        outright       
+  outroar         outroar         outrun          outrun         
+  outrunning      outrun          outruns         outrun         
+  outscold        outscold        outscorn        outscorn       
+  outsell         outsel          outsells        outsel         
+  outside         outsid          outsides        outsid         
+  outspeaks       outspeak        outsport        outsport       
+  outstare        outstar         outstay         outstai        
+  outstood        outstood        outstretch      outstretch     
+  outstretched    outstretch      outstrike       outstrik       
+  outstrip        outstrip        outstripped     outstrip       
+  outswear        outswear        outvenoms       outvenom       
+  outward         outward         outwardly       outwardli      
+  outwards        outward         outwear         outwear        
+  outweighs       outweigh        outwent         outwent        
+  outworn         outworn         outworths       outworth       
+  oven            oven            over            over           
+  overawe         overaw          overbear        overbear       
+  overblown       overblown       overboard       overboard      
+  overbold        overbold        overborne       overborn       
+  overbulk        overbulk        overbuys        overbui        
+  overcame        overcam         overcast        overcast       
+  overcharg       overcharg       overcharged     overcharg      
+  overcome        overcom         overcomes       overcom        
+  overdone        overdon         overearnest     overearnest    
+  overfar         overfar         overflow        overflow       
+  overflown       overflown       overglance      overgl         
+  overgo          overgo          overgone        overgon        
+  overgorg        overgorg        overgrown       overgrown      
+  overhead        overhead        overhear        overhear       
+  overheard       overheard       overhold        overhold       
+  overjoyed       overjoi         overkind        overkind       
+  overland        overland        overleather     overleath      
+  overlive        overl           overlook        overlook       
+  overlooking     overlook        overlooks       overlook       
+  overmaster      overmast        overmounting    overmount      
+  overmuch        overmuch        overpass        overpass       
+  overpeer        overp           overpeering     overp          
+  overplus        overplu         overrul         overrul        
+  overrun         overrun         overscutch      overscutch     
+  overset         overset         overshades      overshad       
+  overshine       overshin        overshines      overshin       
+  overshot        overshot        oversights      oversight      
+  overspread      overspread      overstain       overstain      
+  overswear       overswear       overt           overt          
+  overta          overta          overtake        overtak        
+  overtaketh      overtaketh      overthrow       overthrow      
+  overthrown      overthrown      overthrows      overthrow      
+  overtook        overtook        overtopp        overtopp       
+  overture        overtur         overturn        overturn       
+  overwatch       overwatch       overween        overween       
+  overweening     overween        overweigh       overweigh      
+  overwhelm       overwhelm       overwhelming    overwhelm      
+  overworn        overworn        ovid            ovid           
+  ovidius         ovidiu          ow              ow             
+  owe             ow              owed            ow             
+  owedst          owedst          owen            owen           
+  owes            ow              owest           owest          
+  oweth           oweth           owing           ow             
+  owl             owl             owls            owl            
+  own             own             owner           owner          
+  owners          owner           owning          own            
+  owns            own             owy             owi            
+  ox              ox              oxen            oxen           
+  oxford          oxford          oxfordshire     oxfordshir     
+  oxlips          oxlip           oyes            oy             
+  oyster          oyster          p               p              
+  pabble          pabbl           pabylon         pabylon        
+  pac             pac             pace            pace           
+  paced           pace            paces           pace           
+  pacified        pacifi          pacify          pacifi         
+  pacing          pace            pack            pack           
+  packet          packet          packets         packet         
+  packhorses      packhors        packing         pack           
+  packings        pack            packs           pack           
+  packthread      packthread      pacorus         pacoru         
+  paction         paction         pad             pad            
+  paddle          paddl           paddling        paddl          
+  paddock         paddock         padua           padua          
+  pagan           pagan           pagans          pagan          
+  page            page            pageant         pageant        
+  pageants        pageant         pages           page           
+  pah             pah             paid            paid           
+  pail            pail            pailfuls        pail           
+  pails           pail            pain            pain           
+  pained          pain            painful         pain           
+  painfully       painfulli       pains           pain           
+  paint           paint           painted         paint          
+  painter         painter         painting        paint          
+  paintings       paint           paints          paint          
+  pair            pair            paired          pair           
+  pairs           pair            pajock          pajock         
+  pal             pal             palabras        palabra        
+  palace          palac           palaces         palac          
+  palamedes       palamed         palate          palat          
+  palates         palat           palatine        palatin        
+  palating        palat           pale            pale           
+  paled           pale            paleness        pale           
+  paler           paler           pales           pale           
+  palestine       palestin        palfrey         palfrei        
+  palfreys        palfrei         palisadoes      palisado       
+  pall            pall            pallabris       pallabri       
+  pallas          palla           pallets         pallet         
+  palm            palm            palmer          palmer         
+  palmers         palmer          palms           palm           
+  palmy           palmi           palpable        palpabl        
+  palsied         palsi           palsies         palsi          
+  palsy           palsi           palt            palt           
+  palter          palter          paltry          paltri         
+  paly            pali            pamp            pamp           
+  pamper          pamper          pamphlets       pamphlet       
+  pan             pan             pancackes       pancack        
+  pancake         pancak          pancakes        pancak         
+  pandar          pandar          pandars         pandar         
+  pandarus        pandaru         pander          pander         
+  panderly        panderli        panders         pander         
+  pandulph        pandulph        panel           panel          
+  pang            pang            panging         pang           
+  pangs           pang            pannier         pannier        
+  pannonians      pannonian       pansa           pansa          
+  pansies         pansi           pant            pant           
+  pantaloon       pantaloon       panted          pant           
+  pantheon        pantheon        panther         panther        
+  panthino        panthino        panting         pant           
+  pantingly       pantingli       pantler         pantler        
+  pantry          pantri          pants           pant           
+  pap             pap             papal           papal          
+  paper           paper           papers          paper          
+  paphlagonia     paphlagonia     paphos          papho          
+  papist          papist          paps            pap            
+  par             par             parable         parabl         
+  paracelsus      paracelsu       paradise        paradis        
+  paradox         paradox         paradoxes       paradox        
+  paragon         paragon         paragons        paragon        
+  parallel        parallel        parallels       parallel       
+  paramour        paramour        paramours       paramour       
+  parapets        parapet         paraquito       paraquito      
+  parasite        parasit         parasites       parasit        
+  parca           parca           parcel          parcel         
+  parcell         parcel          parcels         parcel         
+  parch           parch           parched         parch          
+  parching        parch           parchment       parchment      
+  pard            pard            pardon          pardon         
+  pardona         pardona         pardoned        pardon         
+  pardoner        pardon          pardoning       pardon         
+  pardonne        pardonn         pardonner       pardonn        
+  pardonnez       pardonnez       pardons         pardon         
+  pare            pare            pared           pare           
+  parel           parel           parent          parent         
+  parentage       parentag        parents         parent         
+  parfect         parfect         paring          pare           
+  parings         pare            paris           pari           
+  parish          parish          parishioners    parishion      
+  parisians       parisian        paritors        paritor        
+  park            park            parks           park           
+  parle           parl            parler          parler         
+  parles          parl            parley          parlei         
+  parlez          parlez          parliament      parliament     
+  parlors         parlor          parlour         parlour        
+  parlous         parlou          parmacity       parmac         
+  parolles        parol           parricide       parricid       
+  parricides      parricid        parrot          parrot         
+  parrots         parrot          parsley         parslei        
+  parson          parson          part            part           
+  partake         partak          partaken        partaken       
+  partaker        partak          partakers       partak         
+  parted          part            parthia         parthia        
+  parthian        parthian        parthians       parthian       
+  parti           parti           partial         partial        
+  partialize      partial         partially       partial        
+  participate     particip        participation   particip       
+  particle        particl         particular      particular     
+  particularities particular      particularize   particular     
+  particularly    particularli    particulars     particular     
+  parties         parti           parting         part           
+  partisan        partisan        partisans       partisan       
+  partition       partit          partizan        partizan       
+  partlet         partlet         partly          partli         
+  partner         partner         partners        partner        
+  partridge       partridg        parts           part           
+  party           parti           pas             pa             
+  pash            pash            pashed          pash           
+  pashful         pash            pass            pass           
+  passable        passabl         passado         passado        
+  passage         passag          passages        passag         
+  passant         passant         passed          pass           
+  passenger       passeng         passengers      passeng        
+  passes          pass            passeth         passeth        
+  passing         pass            passio          passio         
+  passion         passion         passionate      passion        
+  passioning      passion         passions        passion        
+  passive         passiv          passport        passport       
+  passy           passi           past            past           
+  paste           past            pasterns        pastern        
+  pasties         pasti           pastime         pastim         
+  pastimes        pastim          pastoral        pastor         
+  pastorals       pastor          pastors         pastor         
+  pastry          pastri          pasture         pastur         
+  pastures        pastur          pasty           pasti          
+  pat             pat             patay           patai          
+  patch           patch           patchery        patcheri       
+  patches         patch           pate            pate           
+  pated           pate            patent          patent         
+  patents         patent          paternal        patern         
+  pates           pate            path            path           
+  pathetical      pathet          paths           path           
+  pathway         pathwai         pathways        pathwai        
+  patience        patienc         patient         patient        
+  patiently       patient         patients        patient        
+  patines         patin           patrician       patrician      
+  patricians      patrician       patrick         patrick        
+  patrimony       patrimoni       patroclus       patroclu       
+  patron          patron          patronage       patronag       
+  patroness       patro           patrons         patron         
+  patrum          patrum          patter          patter         
+  pattern         pattern         patterns        pattern        
+  pattle          pattl           pauca           pauca          
+  paucas          pauca           paul            paul           
+  paulina         paulina         paunch          paunch         
+  paunches        paunch          pause           paus           
+  pauser          pauser          pauses          paus           
+  pausingly       pausingli       pauvres         pauvr          
+  pav             pav             paved           pave           
+  pavement        pavement        pavilion        pavilion       
+  pavilions       pavilion        pavin           pavin          
+  paw             paw             pawn            pawn           
+  pawns           pawn            paws            paw            
+  pax             pax             pay             pai            
+  payest          payest          paying          pai            
+  payment         payment         payments        payment        
+  pays            pai             paysan          paysan         
+  paysans         paysan          pe              pe             
+  peace           peac            peaceable       peaceabl       
+  peaceably       peaceabl        peaceful        peac           
+  peacemakers     peacemak        peaces          peac           
+  peach           peach           peaches         peach          
+  peacock         peacock         peacocks        peacock        
+  peak            peak            peaking         peak           
+  peal            peal            peals           peal           
+  pear            pear            peard           peard          
+  pearl           pearl           pearls          pearl          
+  pears           pear            peas            pea            
+  peasant         peasant         peasantry       peasantri      
+  peasants        peasant         peascod         peascod        
+  pease           peas            peaseblossom    peaseblossom   
+  peat            peat            peaten          peaten         
+  peating         peat            pebble          pebbl          
+  pebbled         pebbl           pebbles         pebbl          
+  peck            peck            pecks           peck           
+  peculiar        peculiar        pecus           pecu           
+  pedant          pedant          pedantical      pedant         
+  pedascule       pedascul        pede            pede           
+  pedestal        pedest          pedigree        pedigre        
+  pedlar          pedlar          pedlars         pedlar         
+  pedro           pedro           peds            ped            
+  peel            peel            peep            peep           
+  peeped          peep            peeping         peep           
+  peeps           peep            peer            peer           
+  peereth         peereth         peering         peer           
+  peerless        peerless        peers           peer           
+  peesel          peesel          peevish         peevish        
+  peevishly       peevishli       peflur          peflur         
+  peg             peg             pegasus         pegasu         
+  pegs            peg             peise           peis           
+  peised          peis            peize           peiz           
+  pelf            pelf            pelican         pelican        
+  pelion          pelion          pell            pell           
+  pella           pella           pelleted        pellet         
+  peloponnesus    peloponnesu     pelt            pelt           
+  pelting         pelt            pembroke        pembrok        
+  pen             pen             penalties       penalti        
+  penalty         penalti         penance         penanc         
+  pence           penc            pencil          pencil         
+  pencill         pencil          pencils         pencil         
+  pendant         pendant         pendent         pendent        
+  pendragon       pendragon       pendulous       pendul         
+  penelope        penelop         penetrable      penetr         
+  penetrate       penetr          penetrative     penetr         
+  penitence       penit           penitent        penit          
+  penitential     penitenti       penitently      penit          
+  penitents       penit           penker          penker         
+  penknife        penknif         penn            penn           
+  penned          pen             penning         pen            
+  pennons         pennon          penny           penni          
+  pennyworth      pennyworth      pennyworths     pennyworth     
+  pens            pen             pense           pens           
+  pension         pension         pensioners      pension        
+  pensive         pensiv          pensived        pensiv         
+  pensively       pensiv          pent            pent           
+  pentecost       pentecost       penthesilea     penthesilea    
+  penthouse       penthous        penurious       penuri         
+  penury          penuri          peopl           peopl          
+  people          peopl           peopled         peopl          
+  peoples         peopl           pepin           pepin          
+  pepper          pepper          peppercorn      peppercorn     
+  peppered        pepper          per             per            
+  peradventure    peradventur     peradventures   peradventur    
+  perceiv         perceiv         perceive        perceiv        
+  perceived       perceiv         perceives       perceiv        
+  perceiveth      perceiveth      perch           perch          
+  perchance       perchanc        percies         perci          
+  percussion      percuss         percy           perci          
+  perdie          perdi           perdita         perdita        
+  perdition       perdit          perdonato       perdonato      
+  perdu           perdu           perdurable      perdur         
+  perdurably      perdur          perdy           perdi          
+  pere            pere            peregrinate     peregrin       
+  peremptorily    peremptorili    peremptory      peremptori     
+  perfect         perfect         perfected       perfect        
+  perfecter       perfect         perfectest      perfectest     
+  perfection      perfect         perfections     perfect        
+  perfectly       perfectli       perfectness     perfect        
+  perfidious      perfidi         perfidiously    perfidi        
+  perforce        perforc         perform         perform        
+  performance     perform         performances    perform        
+  performed       perform         performer       perform        
+  performers      perform         performing      perform        
+  performs        perform         perfum          perfum         
+  perfume         perfum          perfumed        perfum         
+  perfumer        perfum          perfumes        perfum         
+  perge           perg            perhaps         perhap         
+  periapts        periapt         perigort        perigort       
+  perigouna       perigouna       peril           peril          
+  perilous        peril           perils          peril          
+  period          period          periods         period         
+  perish          perish          perished        perish         
+  perishest       perishest       perisheth       perisheth      
+  perishing       perish          periwig         periwig        
+  perjur          perjur          perjure         perjur         
+  perjured        perjur          perjuries       perjuri        
+  perjury         perjuri         perk            perk           
+  perkes          perk            permafoy        permafoi       
+  permanent       perman          permission      permiss        
+  permissive      permiss         permit          permit         
+  permitted       permit          pernicious      pernici        
+  perniciously    pernici         peroration      peror          
+  perpend         perpend         perpendicular   perpendicular  
+  perpendicularly perpendicularli perpetual       perpetu        
+  perpetually     perpetu         perpetuity      perpetu        
+  perplex         perplex         perplexed       perplex        
+  perplexity      perplex         pers            per            
+  persecuted      persecut        persecutions    persecut       
+  persecutor      persecutor      perseus         perseu         
+  persever        persev          perseverance    persever       
+  persevers       persev          persia          persia         
+  persian         persian         persist         persist        
+  persisted       persist         persistency     persist        
+  persistive      persist         persists        persist        
+  person          person          personae        persona        
+  personage       personag        personages      personag       
+  personal        person          personally      person         
+  personate       person          personated      person         
+  personates      person          personating     person         
+  persons         person          perspective     perspect       
+  perspectively   perspect        perspectives    perspect       
+  perspicuous     perspicu        persuade        persuad        
+  persuaded       persuad         persuades       persuad        
+  persuading      persuad         persuasion      persuas        
+  persuasions     persuas         pert            pert           
+  pertain         pertain         pertaining      pertain        
+  pertains        pertain         pertaunt        pertaunt       
+  pertinent       pertin          pertly          pertli         
+  perturb         perturb         perturbation    perturb        
+  perturbations   perturb         perturbed       perturb        
+  perus           peru            perusal         perus          
+  peruse          perus           perused         perus          
+  perusing        perus           perverse        pervers        
+  perversely      pervers         perverseness    pervers        
+  pervert         pervert         perverted       pervert        
+  peseech         peseech         pest            pest           
+  pester          pester          pestiferous     pestifer       
+  pestilence      pestil          pestilent       pestil         
+  pet             pet             petar           petar          
+  peter           peter           petit           petit          
+  petition        petit           petitionary     petitionari    
+  petitioner      petition        petitioners     petition       
+  petitions       petit           peto            peto           
+  petrarch        petrarch        petruchio       petruchio      
+  petter          petter          petticoat       petticoat      
+  petticoats      petticoat       pettiness       petti          
+  pettish         pettish         pettitoes       pettito        
+  petty           petti           peu             peu            
+  pew             pew             pewter          pewter         
+  pewterer        pewter          phaethon        phaethon       
+  phaeton         phaeton         phantasime      phantasim      
+  phantasimes     phantasim       phantasma       phantasma      
+  pharamond       pharamond       pharaoh         pharaoh        
+  pharsalia       pharsalia       pheasant        pheasant       
+  pheazar         pheazar         phebe           phebe          
+  phebes          phebe           pheebus         pheebu         
+  pheeze          pheez           phibbus         phibbu         
+  philadelphos    philadelpho     philario        philario       
+  philarmonus     philarmonu      philemon        philemon       
+  philip          philip          philippan       philippan      
+  philippe        philipp         philippi        philippi       
+  phillida        phillida        philo           philo          
+  philomel        philomel        philomela       philomela      
+  philosopher     philosoph       philosophers    philosoph      
+  philosophical   philosoph       philosophy      philosophi     
+  philostrate     philostr        philotus        philotu        
+  phlegmatic      phlegmat        phoebe          phoeb          
+  phoebus         phoebu          phoenicia       phoenicia      
+  phoenicians     phoenician      phoenix         phoenix        
+  phorbus         phorbu          photinus        photinu        
+  phrase          phrase          phraseless      phraseless     
+  phrases         phrase          phrygia         phrygia        
+  phrygian        phrygian        phrynia         phrynia        
+  physic          physic          physical        physic         
+  physician       physician       physicians      physician      
+  physics         physic          pia             pia            
+  pibble          pibbl           pible           pibl           
+  picardy         picardi         pick            pick           
+  pickaxe         pickax          pickaxes        pickax         
+  pickbone        pickbon         picked          pick           
+  pickers         picker          picking         pick           
+  pickle          pickl           picklock        picklock       
+  pickpurse       pickpurs        picks           pick           
+  pickt           pickt           pickthanks      pickthank      
+  pictur          pictur          picture         pictur         
+  pictured        pictur          pictures        pictur         
+  pid             pid             pie             pie            
+  piec            piec            piece           piec           
+  pieces          piec            piecing         piec           
+  pied            pi              piedness        pied           
+  pier            pier            pierc           pierc          
+  pierce          pierc           pierced         pierc          
+  pierces         pierc           pierceth        pierceth       
+  piercing        pierc           piercy          pierci         
+  piers           pier            pies            pi             
+  piety           pieti           pig             pig            
+  pigeon          pigeon          pigeons         pigeon         
+  pight           pight           pigmy           pigmi          
+  pigrogromitus   pigrogromitu    pike            pike           
+  pikes           pike            pil             pil            
+  pilate          pilat           pilates         pilat          
+  pilchers        pilcher         pile            pile           
+  piles           pile            pilf            pilf           
+  pilfering       pilfer          pilgrim         pilgrim        
+  pilgrimage      pilgrimag       pilgrims        pilgrim        
+  pill            pill            pillage         pillag         
+  pillagers       pillag          pillar          pillar         
+  pillars         pillar          pillicock       pillicock      
+  pillory         pillori         pillow          pillow         
+  pillows         pillow          pills           pill           
+  pilot           pilot           pilots          pilot          
+  pimpernell      pimpernel       pin             pin            
+  pinch           pinch           pinched         pinch          
+  pinches         pinch           pinching        pinch          
+  pindarus        pindaru         pine            pine           
+  pined           pine            pines           pine           
+  pinfold         pinfold         pining          pine           
+  pinion          pinion          pink            pink           
+  pinn            pinn            pinnace         pinnac         
+  pins            pin             pinse           pins           
+  pint            pint            pintpot         pintpot        
+  pioned          pion            pioneers        pioneer        
+  pioner          pioner          pioners         pioner         
+  pious           piou            pip             pip            
+  pipe            pipe            piper           piper          
+  pipers          piper           pipes           pipe           
+  piping          pipe            pippin          pippin         
+  pippins         pippin          pirate          pirat          
+  pirates         pirat           pisa            pisa           
+  pisanio         pisanio         pish            pish           
+  pismires        pismir          piss            piss           
+  pissing         piss            pistol          pistol         
+  pistols         pistol          pit             pit            
+  pitch           pitch           pitched         pitch          
+  pitcher         pitcher         pitchers        pitcher        
+  pitchy          pitchi          piteous         piteou         
+  piteously       piteous         pitfall         pitfal         
+  pith            pith            pithless        pithless       
+  pithy           pithi           pitie           piti           
+  pitied          piti            pities          piti           
+  pitiful         piti            pitifully       pitifulli      
+  pitiless        pitiless        pits            pit            
+  pittance        pittanc         pittie          pitti          
+  pittikins       pittikin        pity            piti           
+  pitying         piti            pius            piu            
+  plac            plac            place           place          
+  placed          place           placentio       placentio      
+  places          place           placeth         placeth        
+  placid          placid          placing         place          
+  plack           plack           placket         placket        
+  plackets        placket         plagu           plagu          
+  plague          plagu           plagued         plagu          
+  plagues         plagu           plaguing        plagu          
+  plaguy          plagui          plain           plain          
+  plainer         plainer         plainest        plainest       
+  plaining        plain           plainings       plain          
+  plainly         plainli         plainness       plain          
+  plains          plain           plainsong       plainsong      
+  plaintful       plaint          plaintiff       plaintiff      
+  plaintiffs      plaintiff       plaints         plaint         
+  planched        planch          planet          planet         
+  planetary       planetari       planets         planet         
+  planks          plank           plant           plant          
+  plantage        plantag         plantagenet     plantagenet    
+  plantagenets    plantagenet     plantain        plantain       
+  plantation      plantat         planted         plant          
+  planteth        planteth        plants          plant          
+  plash           plash           plashy          plashi         
+  plast           plast           plaster         plaster        
+  plasterer       plaster         plat            plat           
+  plate           plate           plated          plate          
+  plates          plate           platform        platform       
+  platforms       platform        plats           plat           
+  platted         plat            plausible       plausibl       
+  plausive        plausiv         plautus         plautu         
+  play            plai            played          plai           
+  player          player          players         player         
+  playeth         playeth         playfellow      playfellow     
+  playfellows     playfellow      playhouse       playhous       
+  playing         plai            plays           plai           
+  plea            plea            pleach          pleach         
+  pleached        pleach          plead           plead          
+  pleaded         plead           pleader         pleader        
+  pleaders        pleader         pleading        plead          
+  pleads          plead           pleas           plea           
+  pleasance       pleasanc        pleasant        pleasant       
+  pleasantly      pleasantli      please          pleas          
+  pleased         pleas           pleaser         pleaser        
+  pleasers        pleaser         pleases         pleas          
+  pleasest        pleasest        pleaseth        pleaseth       
+  pleasing        pleas           pleasure        pleasur        
+  pleasures       pleasur         plebeians       plebeian       
+  plebeii         plebeii         plebs           pleb           
+  pledge          pledg           pledges         pledg          
+  pleines         plein           plenitude       plenitud       
+  plenteous       plenteou        plenteously     plenteous      
+  plenties        plenti          plentiful       plenti         
+  plentifully     plentifulli     plenty          plenti         
+  pless           pless           plessed         pless          
+  plessing        pless           pliant          pliant         
+  plied           pli             plies           pli            
+  plight          plight          plighted        plight         
+  plighter        plighter        plod            plod           
+  plodded         plod            plodders        plodder        
+  plodding        plod            plods           plod           
+  plood           plood           ploody          ploodi         
+  plot            plot            plots           plot           
+  plotted         plot            plotter         plotter        
+  plough          plough          ploughed        plough         
+  ploughman       ploughman       ploughmen       ploughmen      
+  plow            plow            plows           plow           
+  pluck           pluck           plucked         pluck          
+  plucker         plucker         plucking        pluck          
+  plucks          pluck           plue            plue           
+  plum            plum            plume           plume          
+  plumed          plume           plumes          plume          
+  plummet         plummet         plump           plump          
+  plumpy          plumpi          plums           plum           
+  plung           plung           plunge          plung          
+  plunged         plung           plural          plural         
+  plurisy         plurisi         plus            plu            
+  pluto           pluto           plutus          plutu          
+  ply             ply             po              po             
+  pocket          pocket          pocketing       pocket         
+  pockets         pocket          pocky           pocki          
+  pody            podi            poem            poem           
+  poesy           poesi           poet            poet           
+  poetical        poetic          poetry          poetri         
+  poets           poet            poictiers       poictier       
+  poinards        poinard         poins           poin           
+  point           point           pointblank      pointblank     
+  pointed         point           pointing        point          
+  points          point           pois            poi            
+  poise           pois            poising         pois           
+  poison          poison          poisoned        poison         
+  poisoner        poison          poisoning       poison         
+  poisonous       poison          poisons         poison         
+  poke            poke            poking          poke           
+  pol             pol             polack          polack         
+  polacks         polack          poland          poland         
+  pold            pold            pole            pole           
+  poleaxe         poleax          polecat         polecat        
+  polecats        polecat         polemon         polemon        
+  poles           pole            poli            poli           
+  policies        polici          policy          polici         
+  polish          polish          polished        polish         
+  politic         polit           politician      politician     
+  politicians     politician      politicly       politicli      
+  polixenes       polixen         poll            poll           
+  polluted        pollut          pollution       pollut         
+  polonius        poloniu         poltroons       poltroon       
+  polusion        polus           polydamus       polydamu       
+  polydore        polydor         polyxena        polyxena       
+  pomander        pomand          pomegranate     pomegran       
+  pomewater       pomewat         pomfret         pomfret        
+  pomgarnet       pomgarnet       pommel          pommel         
+  pomp            pomp            pompeius        pompeiu        
+  pompey          pompei          pompion         pompion        
+  pompous         pompou          pomps           pomp           
+  pond            pond            ponder          ponder         
+  ponderous       ponder          ponds           pond           
+  poniard         poniard         poniards        poniard        
+  pont            pont            pontic          pontic         
+  pontifical      pontif          ponton          ponton         
+  pooh            pooh            pool            pool           
+  poole           pool            poop            poop           
+  poor            poor            poorer          poorer         
+  poorest         poorest         poorly          poorli         
+  pop             pop             pope            pope           
+  popedom         popedom         popilius        popiliu        
+  popingay        popingai        popish          popish         
+  popp            popp            poppy           poppi          
+  pops            pop             popular         popular        
+  popularity      popular         populous        popul          
+  porch           porch           porches         porch          
+  pore            pore            poring          pore           
+  pork            pork            porn            porn           
+  porpentine      porpentin       porridge        porridg        
+  porringer       porring         port            port           
+  portable        portabl         portage         portag         
+  portal          portal          portance        portanc        
+  portcullis      portculli       portend         portend        
+  portends        portend         portent         portent        
+  portentous      portent         portents        portent        
+  porter          porter          porters         porter         
+  portia          portia          portion         portion        
+  portly          portli          portotartarossa portotartarossa
+  portrait        portrait        portraiture     portraitur     
+  ports           port            portugal        portug         
+  pose            pose            posied          posi           
+  posies          posi            position        posit          
+  positive        posit           positively      posit          
+  posse           poss            possess         possess        
+  possessed       possess         possesses       possess        
+  possesseth      possesseth      possessing      possess        
+  possession      possess         possessions     possess        
+  possessor       possessor       posset          posset         
+  possets         posset          possibilities   possibl        
+  possibility     possibl         possible        possibl        
+  possibly        possibl         possitable      possit         
+  post            post            poste           post           
+  posted          post            posterior       posterior      
+  posteriors      posterior       posterity       poster         
+  postern         postern         posterns        postern        
+  posters         poster          posthorse       posthors       
+  posthorses      posthors        posthumus       posthumu       
+  posting         post            postmaster      postmast       
+  posts           post            postscript      postscript     
+  posture         postur          postures        postur         
+  posy            posi            pot             pot            
+  potable         potabl          potations       potat          
+  potato          potato          potatoes        potato         
+  potch           potch           potency         potenc         
+  potent          potent          potentates      potent         
+  potential       potenti         potently        potent         
+  potents         potent          pothecary       pothecari      
+  pother          pother          potion          potion         
+  potions         potion          potpan          potpan         
+  pots            pot             potter          potter         
+  potting         pot             pottle          pottl          
+  pouch           pouch           poulter         poulter        
+  poultice        poultic         poultney        poultnei       
+  pouncet         pouncet         pound           pound          
+  pounds          pound           pour            pour           
+  pourest         pourest         pouring         pour           
+  pourquoi        pourquoi        pours           pour           
+  pout            pout            poverty         poverti        
+  pow             pow             powd            powd           
+  powder          powder          power           power          
+  powerful        power           powerfully      powerfulli     
+  powerless       powerless       powers          power          
+  pox             pox             poys            poi            
+  poysam          poysam          prabbles        prabbl         
+  practic         practic         practice        practic        
+  practiced       practic         practicer       practic        
+  practices       practic         practicing      practic        
+  practis         practi          practisants     practis        
+  practise        practis         practiser       practis        
+  practisers      practis         practises       practis        
+  practising      practis         praeclarissimus praeclarissimu 
+  praemunire      praemunir       praetor         praetor        
+  praetors        praetor         pragging        prag           
+  prague          pragu           prain           prain          
+  prains          prain           prais           prai           
+  praise          prais           praised         prais          
+  praises         prais           praisest        praisest       
+  praiseworthy    praiseworthi    praising        prais          
+  prancing        pranc           prank           prank          
+  pranks          prank           prat            prat           
+  prate           prate           prated          prate          
+  prater          prater          prating         prate          
+  prattle         prattl          prattler        prattler       
+  prattling       prattl          prave           prave          
+  prawls          prawl           prawns          prawn          
+  pray            prai            prayer          prayer         
+  prayers         prayer          praying         prai           
+  prays           prai            pre             pre            
+  preach          preach          preached        preach         
+  preachers       preacher        preaches        preach         
+  preaching       preach          preachment      preachment     
+  pread           pread           preambulate     preambul       
+  precedence      preced          precedent       preced         
+  preceding       preced          precept         precept        
+  preceptial      precepti        precepts        precept        
+  precinct        precinct        precious        preciou        
+  preciously      precious        precipice       precipic       
+  precipitating   precipit        precipitation   precipit       
+  precise         precis          precisely       precis         
+  preciseness     precis          precisian       precisian      
+  precor          precor          precurse        precurs        
+  precursors      precursor       predeceased     predeceas      
+  predecessor     predecessor     predecessors    predecessor    
+  predestinate    predestin       predicament     predica        
+  predict         predict         prediction      predict        
+  predictions     predict         predominance    predomin       
+  predominant     predomin        predominate     predomin       
+  preeches        preech          preeminence     preemin        
+  preface         prefac          prefer          prefer         
+  preferment      prefer          preferments     prefer         
+  preferr         preferr         preferreth      preferreth     
+  preferring      prefer          prefers         prefer         
+  prefiguring     prefigur        prefix          prefix         
+  prefixed        prefix          preformed       preform        
+  pregnancy       pregnanc        pregnant        pregnant       
+  pregnantly      pregnantli      prejudicates    prejud         
+  prejudice       prejudic        prejudicial     prejudici      
+  prelate         prelat          premeditated    premedit       
+  premeditation   premedit        premised        premis         
+  premises        premis          prenez          prenez         
+  prenominate     prenomin        prentice        prentic        
+  prentices       prentic         preordinance    preordin       
+  prepar          prepar          preparation     prepar         
+  preparations    prepar          prepare         prepar         
+  prepared        prepar          preparedly      preparedli     
+  prepares        prepar          preparing       prepar         
+  prepost         prepost         preposterous    preposter      
+  preposterously  preposter       prerogatifes    prerogatif     
+  prerogative     prerog          prerogatived    prerogativ     
+  presage         presag          presagers       presag         
+  presages        presag          presageth       presageth      
+  presaging       presag          prescience      prescienc      
+  prescribe       prescrib        prescript       prescript      
+  prescription    prescript       prescriptions   prescript      
+  prescripts      prescript       presence        presenc        
+  presences       presenc         present         present        
+  presentation    present         presented       present        
+  presenter       present         presenters      present        
+  presenteth      presenteth      presenting      present        
+  presently       present         presentment     present        
+  presents        present         preserv         preserv        
+  preservation    preserv         preservative    preserv        
+  preserve        preserv         preserved       preserv        
+  preserver       preserv         preservers      preserv        
+  preserving      preserv         president       presid         
+  press           press           pressed         press          
+  presser         presser         presses         press          
+  pressing        press           pressure        pressur        
+  pressures       pressur         prest           prest          
+  prester         prester         presume         presum         
+  presumes        presum          presuming       presum         
+  presumption     presumpt        presumptuous    presumptu      
+  presuppos       presuppo        pret            pret           
+  pretence        pretenc         pretences       pretenc        
+  pretend         pretend         pretended       pretend        
+  pretending      pretend         pretense        pretens        
+  pretext         pretext         pretia          pretia         
+  prettier        prettier        prettiest       prettiest      
+  prettily        prettili        prettiness      pretti         
+  pretty          pretti          prevail         prevail        
+  prevailed       prevail         prevaileth      prevaileth     
+  prevailing      prevail         prevailment     prevail        
+  prevails        prevail         prevent         prevent        
+  prevented       prevent         prevention      prevent        
+  preventions     prevent         prevents        prevent        
+  prey            prei            preyful         prey           
+  preys           prei            priam           priam          
+  priami          priami          priamus         priamu         
+  pribbles        pribbl          price           price          
+  prick           prick           pricked         prick          
+  pricket         pricket         pricking        prick          
+  pricks          prick           pricksong       pricksong      
+  pride           pride           prides          pride          
+  pridge          pridg           prie            prie           
+  pried           pri             prief           prief          
+  pries           pri             priest          priest         
+  priesthood      priesthood      priests         priest         
+  prig            prig            primal          primal         
+  prime           prime           primer          primer         
+  primero         primero         primest         primest        
+  primitive       primit          primo           primo          
+  primogenity     primogen        primrose        primros        
+  primroses       primros         primy           primi          
+  prince          princ           princely        princ          
+  princes         princ           princess        princess       
+  principal       princip         principalities  princip        
+  principality    princip         principle       principl       
+  principles      principl        princox         princox        
+  prings          pring           print           print          
+  printed         print           printing        print          
+  printless       printless       prints          print          
+  prioress        prioress        priories        priori         
+  priority        prioriti        priory          priori         
+  priscian        priscian        prison          prison         
+  prisoner        prison          prisoners       prison         
+  prisonment      prison          prisonnier      prisonni       
+  prisons         prison          pristine        pristin        
+  prithe          prith           prithee         prithe         
+  privacy         privaci         private         privat         
+  privately       privat          privates        privat         
+  privilage       privilag        privileg        privileg       
+  privilege       privileg        privileged      privileg       
+  privileges      privileg        privilegio      privilegio     
+  privily         privili         privity         priviti        
+  privy           privi           priz            priz           
+  prize           prize           prized          prize          
+  prizer          prizer          prizes          prize          
+  prizest         prizest         prizing         prize          
+  pro             pro             probable        probabl        
+  probal          probal          probation       probat         
+  proceed         proce           proceeded       proceed        
+  proceeders      proceed         proceeding      proceed        
+  proceedings     proceed         proceeds        proce          
+  process         process         procession      process        
+  proclaim        proclaim        proclaimed      proclaim       
+  proclaimeth     proclaimeth     proclaims       proclaim       
+  proclamation    proclam         proclamations   proclam        
+  proconsul       proconsul       procrastinate   procrastin     
+  procreant       procreant       procreants      procreant      
+  procreation     procreat        procrus         procru         
+  proculeius      proculeiu       procur          procur         
+  procurator      procur          procure         procur         
+  procured        procur          procures        procur         
+  procuring       procur          prodigal        prodig         
+  prodigality     prodig          prodigally      prodig         
+  prodigals       prodig          prodigies       prodigi        
+  prodigious      prodigi         prodigiously    prodigi        
+  prodigy         prodigi         proditor        proditor       
+  produc          produc          produce         produc         
+  produced        produc          produces        produc         
+  producing       produc          proface         profac         
+  profan          profan          profanation     profan         
+  profane         profan          profaned        profan         
+  profanely       profan          profaneness     profan         
+  profaners       profan          profaning       profan         
+  profess         profess         professed       profess        
+  professes       profess         profession      profess        
+  professions     profess         professors      professor      
+  proffer         proffer         proffered       proffer        
+  profferer       proffer         proffers        proffer        
+  proficient      profici         profit          profit         
+  profitable      profit          profitably      profit         
+  profited        profit          profiting       profit         
+  profitless      profitless      profits         profit         
+  profound        profound        profoundest     profoundest    
+  profoundly      profoundli      progenitors     progenitor     
+  progeny         progeni         progne          progn          
+  prognosticate   prognost        prognostication prognost       
+  progress        progress        progression     progress       
+  prohibit        prohibit        prohibition     prohibit       
+  project         project         projection      project        
+  projects        project         prolixious      prolixi        
+  prolixity       prolix          prologue        prologu        
+  prologues       prologu         prolong         prolong        
+  prolongs        prolong         promethean      promethean     
+  prometheus      prometheu       promis          promi          
+  promise         promis          promised        promis         
+  promises        promis          promiseth       promiseth      
+  promising       promis          promontory      promontori     
+  promotion       promot          promotions      promot         
+  prompt          prompt          prompted        prompt         
+  promptement     promptement     prompter        prompter       
+  prompting       prompt          prompts         prompt         
+  prompture       promptur        promulgate      promulg        
+  prone           prone           prononcer       prononc        
+  prononcez       prononcez       pronoun         pronoun        
+  pronounc        pronounc        pronounce       pronounc       
+  pronounced      pronounc        pronouncing     pronounc       
+  pronouns        pronoun         proof           proof          
+  proofs          proof           prop            prop           
+  propagate       propag          propagation     propag         
+  propend         propend         propension      propens        
+  proper          proper          properer        proper         
+  properly        properli        propertied      properti       
+  properties      properti        property        properti       
+  prophecies      propheci        prophecy        propheci       
+  prophesied      prophesi        prophesier      prophesi       
+  prophesy        prophesi        prophesying     prophesi       
+  prophet         prophet         prophetess      prophetess     
+  prophetic       prophet         prophetically   prophet        
+  prophets        prophet         propinquity     propinqu       
+  propontic       propont         proportion      proport        
+  proportionable  proportion      proportions     proport        
+  propos          propo           propose         propos         
+  proposed        propos          proposer        propos         
+  proposes        propos          proposing       propos         
+  proposition     proposit        propositions    proposit       
+  propounded      propound        propp           propp          
+  propre          propr           propriety       proprieti      
+  props           prop            propugnation    propugn        
+  prorogue        prorogu         prorogued       prorogu        
+  proscription    proscript       proscriptions   proscript      
+  prose           prose           prosecute       prosecut       
+  prosecution     prosecut        proselytes      proselyt       
+  proserpina      proserpina      prosp           prosp          
+  prospect        prospect        prosper         prosper        
+  prosperity      prosper         prospero        prospero       
+  prosperous      prosper         prosperously    prosper        
+  prospers        prosper         prostitute      prostitut      
+  prostrate       prostrat        protect         protect        
+  protected       protect         protection      protect        
+  protector       protector       protectors      protector      
+  protectorship   protectorship   protectress     protectress    
+  protects        protect         protest         protest        
+  protestation    protest         protestations   protest        
+  protested       protest         protester       protest        
+  protesting      protest         protests        protest        
+  proteus         proteu          protheus        protheu        
+  protract        protract        protractive     protract       
+  proud           proud           prouder         prouder        
+  proudest        proudest        proudlier       proudlier      
+  proudly         proudli         prouds          proud          
+  prov            prov            provand         provand        
+  prove           prove           proved          prove          
+  provender       provend         proverb         proverb        
+  proverbs        proverb         proves          prove          
+  proveth         proveth         provide         provid         
+  provided        provid          providence      provid         
+  provident       provid          providently     provid         
+  provider        provid          provides        provid         
+  province        provinc         provinces       provinc        
+  provincial      provinci        proving         prove          
+  provision       provis          proviso         proviso        
+  provocation     provoc          provok          provok         
+  provoke         provok          provoked        provok         
+  provoker        provok          provokes        provok         
+  provoketh       provoketh       provoking       provok         
+  provost         provost         prowess         prowess        
+  prudence        prudenc         prudent         prudent        
+  prun            prun            prune           prune          
+  prunes          prune           pruning         prune          
+  pry             pry             prying          pry            
+  psalm           psalm           psalmist        psalmist       
+  psalms          psalm           psalteries      psalteri       
+  ptolemies       ptolemi         ptolemy         ptolemi        
+  public          public          publican        publican       
+  publication     public          publicly        publicli       
+  publicola       publicola       publish         publish        
+  published       publish         publisher       publish        
+  publishing      publish         publius         publiu         
+  pucelle         pucel           puck            puck           
+  pudder          pudder          pudding         pud            
+  puddings        pud             puddle          puddl          
+  puddled         puddl           pudency         pudenc         
+  pueritia        pueritia        puff            puff           
+  puffing         puf             puffs           puff           
+  pugging         pug             puis            pui            
+  puissance       puissanc        puissant        puissant       
+  puke            puke            puking          puke           
+  pulcher         pulcher         puling          pule           
+  pull            pull            puller          puller         
+  pullet          pullet          pulling         pull           
+  pulls           pull            pulpit          pulpit         
+  pulpiter        pulpit          pulpits         pulpit         
+  pulse           puls            pulsidge        pulsidg        
+  pump            pump            pumpion         pumpion        
+  pumps           pump            pun             pun            
+  punched         punch           punish          punish         
+  punished        punish          punishes        punish         
+  punishment      punish          punishments     punish         
+  punk            punk            punto           punto          
+  puny            puni            pupil           pupil          
+  pupils          pupil           puppet          puppet         
+  puppets         puppet          puppies         puppi          
+  puppy           puppi           pur             pur            
+  purblind        purblind        purchas         purcha         
+  purchase        purchas         purchased       purchas        
+  purchases       purchas         purchaseth      purchaseth     
+  purchasing      purchas         pure            pure           
+  purely          pure            purer           purer          
+  purest          purest          purg            purg           
+  purgation       purgat          purgative       purg           
+  purgatory       purgatori       purge           purg           
+  purged          purg            purgers         purger         
+  purging         purg            purifies        purifi         
+  purifying       purifi          puritan         puritan        
+  purity          puriti          purlieus        purlieu        
+  purple          purpl           purpled         purpl          
+  purples         purpl           purport         purport        
+  purpos          purpo           purpose         purpos         
+  purposed        purpos          purposely       purpos         
+  purposes        purpos          purposeth       purposeth      
+  purposing       purpos          purr            purr           
+  purs            pur             purse           purs           
+  pursents        pursent         purses          purs           
+  pursu           pursu           pursue          pursu          
+  pursued         pursu           pursuers        pursuer        
+  pursues         pursu           pursuest        pursuest       
+  pursueth        pursueth        pursuing        pursu          
+  pursuit         pursuit         pursuivant      pursuiv        
+  pursuivants     pursuiv         pursy           pursi          
+  purus           puru            purveyor        purveyor       
+  push            push            pushes          push           
+  pusillanimity   pusillanim      put             put            
+  putrefy         putrefi         putrified       putrifi        
+  puts            put             putter          putter         
+  putting         put             puttock         puttock        
+  puzzel          puzzel          puzzle          puzzl          
+  puzzled         puzzl           puzzles         puzzl          
+  py              py              pygmalion       pygmalion      
+  pygmies         pygmi           pygmy           pygmi          
+  pyramid         pyramid         pyramides       pyramid        
+  pyramids        pyramid         pyramis         pyrami         
+  pyramises       pyramis         pyramus         pyramu         
+  pyrenean        pyrenean        pyrrhus         pyrrhu         
+  pythagoras      pythagora       qu              qu             
+  quadrangle      quadrangl       quae            quae           
+  quaff           quaff           quaffing        quaf           
+  quagmire        quagmir         quail           quail          
+  quailing        quail           quails          quail          
+  quaint          quaint          quaintly        quaintli       
+  quak            quak            quake           quak           
+  quakes          quak            qualification   qualif         
+  qualified       qualifi         qualifies       qualifi        
+  qualify         qualifi         qualifying      qualifi        
+  qualite         qualit          qualities       qualiti        
+  quality         qualiti         qualm           qualm          
+  qualmish        qualmish        quam            quam           
+  quand           quand           quando          quando         
+  quantities      quantiti        quantity        quantiti       
+  quare           quar            quarrel         quarrel        
+  quarrell        quarrel         quarreller      quarrel        
+  quarrelling     quarrel         quarrelous      quarrel        
+  quarrels        quarrel         quarrelsome     quarrelsom     
+  quarries        quarri          quarry          quarri         
+  quart           quart           quarter         quarter        
+  quartered       quarter         quartering      quarter        
+  quarters        quarter         quarts          quart          
+  quasi           quasi           quat            quat           
+  quatch          quatch          quay            quai           
+  que             que             quean           quean          
+  queas           quea            queasiness      queasi         
+  queasy          queasi          queen           queen          
+  queens          queen           quell           quell          
+  queller         queller         quench          quench         
+  quenched        quench          quenching       quench         
+  quenchless      quenchless      quern           quern          
+  quest           quest           questant        questant       
+  question        question        questionable    question       
+  questioned      question        questioning     question       
+  questionless    questionless    questions       question       
+  questrists      questrist       quests          quest          
+  queubus         queubu          qui             qui            
+  quick           quick           quicken         quicken        
+  quickens        quicken         quicker         quicker        
+  quicklier       quicklier       quickly         quickli        
+  quickness       quick           quicksand       quicksand      
+  quicksands      quicksand       quicksilverr    quicksilverr   
+  quid            quid            quiddities      quidditi       
+  quiddits        quiddit         quier           quier          
+  quiet           quiet           quieter         quieter        
+  quietly         quietli         quietness       quiet          
+  quietus         quietu          quill           quill          
+  quillets        quillet         quills          quill          
+  quilt           quilt           quinapalus      quinapalu      
+  quince          quinc           quinces         quinc          
+  quintain        quintain        quintessence    quintess       
+  quintus         quintu          quip            quip           
+  quips           quip            quire           quir           
+  quiring         quir            quirk           quirk          
+  quirks          quirk           quis            qui            
+  quit            quit            quite           quit           
+  quits           quit            quittance       quittanc       
+  quitted         quit            quitting        quit           
+  quiver          quiver          quivering       quiver         
+  quivers         quiver          quo             quo            
+  quod            quod            quoifs          quoif          
+  quoint          quoint          quoit           quoit          
+  quoits          quoit           quondam         quondam        
+  quoniam         quoniam         quote           quot           
+  quoted          quot            quotes          quot           
+  quoth           quoth           quotidian       quotidian      
+  r               r               rabbit          rabbit         
+  rabble          rabbl           rabblement      rabblement     
+  race            race            rack            rack           
+  rackers         racker          racket          racket         
+  rackets         racket          racking         rack           
+  racks           rack            radiance        radianc        
+  radiant         radiant         radish          radish         
+  rafe            rafe            raft            raft           
+  rag             rag             rage            rage           
+  rages           rage            rageth          rageth         
+  ragg            ragg            ragged          rag            
+  raggedness      ragged          raging          rage           
+  ragozine        ragozin         rags            rag            
+  rah             rah             rail            rail           
+  railed          rail            railer          railer         
+  railest         railest         raileth         raileth        
+  railing         rail            rails           rail           
+  raiment         raiment         rain            rain           
+  rainbow         rainbow         raineth         raineth        
+  raining         rain            rainold         rainold        
+  rains           rain            rainy           raini          
+  rais            rai             raise           rais           
+  raised          rais            raises          rais           
+  raising         rais            raisins         raisin         
+  rak             rak             rake            rake           
+  rakers          raker           rakes           rake           
+  ral             ral             rald            rald           
+  ralph           ralph           ram             ram            
+  rambures        rambur          ramm            ramm           
+  rampallian      rampallian      rampant         rampant        
+  ramping         ramp            rampir          rampir         
+  ramps           ramp            rams            ram            
+  ramsey          ramsei          ramston         ramston        
+  ran             ran             rance           ranc           
+  rancorous       rancor          rancors         rancor         
+  rancour         rancour         random          random         
+  rang            rang            range           rang           
+  ranged          rang            rangers         ranger         
+  ranges          rang            ranging         rang           
+  rank            rank            ranker          ranker         
+  rankest         rankest         ranking         rank           
+  rankle          rankl           rankly          rankli         
+  rankness        rank            ranks           rank           
+  ransack         ransack         ransacking      ransack        
+  ransom          ransom          ransomed        ransom         
+  ransoming       ransom          ransomless      ransomless     
+  ransoms         ransom          rant            rant           
+  ranting         rant            rap             rap            
+  rape            rape            rapes           rape           
+  rapier          rapier          rapiers         rapier         
+  rapine          rapin           raps            rap            
+  rapt            rapt            rapture         raptur         
+  raptures        raptur          rar             rar            
+  rare            rare            rarely          rare           
+  rareness        rare            rarer           rarer          
+  rarest          rarest          rarities        rariti         
+  rarity          rariti          rascal          rascal         
+  rascalliest     rascalliest     rascally        rascal         
+  rascals         rascal          rased           rase           
+  rash            rash            rasher          rasher         
+  rashly          rashli          rashness        rash           
+  rat             rat             ratcatcher      ratcatch       
+  ratcliff        ratcliff        rate            rate           
+  rated           rate            rately          rate           
+  rates           rate            rather          rather         
+  ratherest       ratherest       ratified        ratifi         
+  ratifiers       ratifi          ratify          ratifi         
+  rating          rate            rational        ration         
+  ratolorum       ratolorum       rats            rat            
+  ratsbane        ratsban         rattle          rattl          
+  rattles         rattl           rattling        rattl          
+  rature          ratur           raught          raught         
+  rav             rav             rave            rave           
+  ravel           ravel           raven           raven          
+  ravening        raven           ravenous        raven          
+  ravens          raven           ravenspurgh     ravenspurgh    
+  raves           rave            ravin           ravin          
+  raving          rave            ravish          ravish         
+  ravished        ravish          ravisher        ravish         
+  ravishing       ravish          ravishments     ravish         
+  raw             raw             rawer           rawer          
+  rawly           rawli           rawness         raw            
+  ray             rai             rayed           rai            
+  rays            rai             raz             raz            
+  raze            raze            razed           raze           
+  razes           raze            razeth          razeth         
+  razing          raze            razor           razor          
+  razorable       razor           razors          razor          
+  razure          razur           re              re             
+  reach           reach           reaches         reach          
+  reacheth        reacheth        reaching        reach          
+  read            read            reader          reader         
+  readiest        readiest        readily         readili        
+  readiness       readi           reading         read           
+  readins         readin          reads           read           
+  ready           readi           real            real           
+  really          realli          realm           realm          
+  realms          realm           reap            reap           
+  reapers         reaper          reaping         reap           
+  reaps           reap            rear            rear           
+  rears           rear            rearward        rearward       
+  reason          reason          reasonable      reason         
+  reasonably      reason          reasoned        reason         
+  reasoning       reason          reasonless      reasonless     
+  reasons         reason          reave           reav           
+  rebate          rebat           rebato          rebato         
+  rebeck          rebeck          rebel           rebel          
+  rebell          rebel           rebelling       rebel          
+  rebellion       rebellion       rebellious      rebelli        
+  rebels          rebel           rebound         rebound        
+  rebuk           rebuk           rebuke          rebuk          
+  rebukeable      rebuk           rebuked         rebuk          
+  rebukes         rebuk           rebus           rebu           
+  recall          recal           recant          recant         
+  recantation     recant          recanter        recant         
+  recanting       recant          receipt         receipt        
+  receipts        receipt         receiv          receiv         
+  receive         receiv          received        receiv         
+  receiver        receiv          receives        receiv         
+  receivest       receivest       receiveth       receiveth      
+  receiving       receiv          receptacle      receptacl      
+  rechate         rechat          reciprocal      reciproc       
+  reciprocally    reciproc        recite          recit          
+  recited         recit           reciterai       reciterai      
+  reck            reck            recking         reck           
+  reckless        reckless        reckon          reckon         
+  reckoned        reckon          reckoning       reckon         
+  reckonings      reckon          recks           reck           
+  reclaim         reclaim         reclaims        reclaim        
+  reclusive       reclus          recognizance    recogniz       
+  recognizances   recogniz        recoil          recoil         
+  recoiling       recoil          recollected     recollect      
+  recomforted     recomfort       recomforture    recomfortur    
+  recommend       recommend       recommended     recommend      
+  recommends      recommend       recompens       recompen       
+  recompense      recompens       reconcil        reconcil       
+  reconcile       reconcil        reconciled      reconcil       
+  reconcilement   reconcil        reconciler      reconcil       
+  reconciles      reconcil        reconciliation  reconcili      
+  record          record          recordation     record         
+  recorded        record          recorder        record         
+  recorders       record          records         record         
+  recount         recount         recounted       recount        
+  recounting      recount         recountments    recount        
+  recounts        recount         recourse        recours        
+  recov           recov           recover         recov          
+  recoverable     recover         recovered       recov          
+  recoveries      recoveri        recovers        recov          
+  recovery        recoveri        recreant        recreant       
+  recreants       recreant        recreate        recreat        
+  recreation      recreat         rectify         rectifi        
+  rector          rector          rectorship      rectorship     
+  recure          recur           recured         recur          
+  red             red             redbreast       redbreast      
+  redder          redder          reddest         reddest        
+  rede            rede            redeem          redeem         
+  redeemed        redeem          redeemer        redeem         
+  redeeming       redeem          redeems         redeem         
+  redeliver       redeliv         redemption      redempt        
+  redime          redim           redness         red            
+  redoubled       redoubl         redoubted       redoubt        
+  redound         redound         redress         redress        
+  redressed       redress         redresses       redress        
+  reduce          reduc           reechy          reechi         
+  reed            reed            reeds           reed           
+  reek            reek            reeking         reek           
+  reeks           reek            reeky           reeki          
+  reel            reel            reeleth         reeleth        
+  reeling         reel            reels           reel           
+  refell          refel           refer           refer          
+  reference       refer           referr          referr         
+  referred        refer           refigured       refigur        
+  refin           refin           refined         refin          
+  reflect         reflect         reflecting      reflect        
+  reflection      reflect         reflex          reflex         
+  reform          reform          reformation     reform         
+  reformed        reform          refractory      refractori     
+  refrain         refrain         refresh         refresh        
+  refreshing      refresh         reft            reft           
+  refts           reft            refuge          refug          
+  refus           refu            refusal         refus          
+  refuse          refus           refused         refus          
+  refusest        refusest        refusing        refus          
+  reg             reg             regal           regal          
+  regalia         regalia         regan           regan          
+  regard          regard          regardance      regard         
+  regarded        regard          regardfully     regardfulli    
+  regarding       regard          regards         regard         
+  regenerate      regener         regent          regent         
+  regentship      regentship      regia           regia          
+  regiment        regiment        regiments       regiment       
+  regina          regina          region          region         
+  regions         region          regist          regist         
+  register        regist          registers       regist         
+  regreet         regreet         regreets        regreet        
+  regress         regress         reguerdon       reguerdon      
+  regular         regular         rehears         rehear         
+  rehearsal       rehears         rehearse        rehears        
+  reign           reign           reigned         reign          
+  reignier        reignier        reigning        reign          
+  reigns          reign           rein            rein           
+  reinforc        reinforc        reinforce       reinforc       
+  reinforcement   reinforc        reins           rein           
+  reiterate       reiter          reject          reject         
+  rejected        reject          rejoic          rejoic         
+  rejoice         rejoic          rejoices        rejoic         
+  rejoiceth       rejoiceth       rejoicing       rejoic         
+  rejoicingly     rejoicingli     rejoindure      rejoindur      
+  rejourn         rejourn         rel             rel            
+  relapse         relaps          relate          relat          
+  relates         relat           relation        relat          
+  relations       relat           relative        rel            
+  releas          relea           release         releas         
+  released        releas          releasing       releas         
+  relent          relent          relenting       relent         
+  relents         relent          reliances       relianc        
+  relics          relic           relief          relief         
+  reliev          reliev          relieve         reliev         
+  relieved        reliev          relieves        reliev         
+  relieving       reliev          religion        religion       
+  religions       religion        religious       religi         
+  religiously     religi          relinquish      relinquish     
+  reliques        reliqu          reliquit        reliquit       
+  relish          relish          relume          relum          
+  rely            reli            relying         reli           
+  remain          remain          remainder       remaind        
+  remainders      remaind         remained        remain         
+  remaineth       remaineth       remaining       remain         
+  remains         remain          remark          remark         
+  remarkable      remark          remediate       remedi         
+  remedied        remedi          remedies        remedi         
+  remedy          remedi          rememb          rememb         
+  remember        rememb          remembered      rememb         
+  remembers       rememb          remembrance     remembr        
+  remembrancer    remembranc      remembrances    remembr        
+  remercimens     remercimen      remiss          remiss         
+  remission       remiss          remissness      remiss         
+  remit           remit           remnant         remnant        
+  remnants        remnant         remonstrance    remonstr       
+  remorse         remors          remorseful      remors         
+  remorseless     remorseless     remote          remot          
+  remotion        remot           remov           remov          
+  remove          remov           removed         remov          
+  removedness     removed         remover         remov          
+  removes         remov           removing        remov          
+  remunerate      remuner         remuneration    remuner        
+  rence           renc            rend            rend           
+  render          render          rendered        render         
+  renders         render          rendezvous      rendezv        
+  renegado        renegado        renege          reneg          
+  reneges         reneg           renew           renew          
+  renewed         renew           renewest        renewest       
+  renounce        renounc         renouncement    renounc        
+  renouncing      renounc         renowmed        renowm         
+  renown          renown          renowned        renown         
+  rent            rent            rents           rent           
+  repaid          repaid          repair          repair         
+  repaired        repair          repairing       repair         
+  repairs         repair          repass          repass         
+  repast          repast          repasture       repastur       
+  repay           repai           repaying        repai          
+  repays          repai           repeal          repeal         
+  repealing       repeal          repeals         repeal         
+  repeat          repeat          repeated        repeat         
+  repeating       repeat          repeats         repeat         
+  repel           repel           repent          repent         
+  repentance      repent          repentant       repent         
+  repented        repent          repenting       repent         
+  repents         repent          repetition      repetit        
+  repetitions     repetit         repin           repin          
+  repine          repin           repining        repin          
+  replant         replant         replenish       replenish      
+  replenished     replenish       replete         replet         
+  replication     replic          replied         repli          
+  replies         repli           repliest        repliest       
+  reply           repli           replying        repli          
+  report          report          reported        report         
+  reporter        report          reportest       reportest      
+  reporting       report          reportingly     reportingli    
+  reports         report          reposal         repos          
+  repose          repos           reposeth        reposeth       
+  reposing        repos           repossess       repossess      
+  reprehend       reprehend       reprehended     reprehend      
+  reprehending    reprehend       represent       repres         
+  representing    repres          reprieve        repriev        
+  reprieves       repriev         reprisal        repris         
+  reproach        reproach        reproaches      reproach       
+  reproachful     reproach        reproachfully   reproachfulli  
+  reprobate       reprob          reprobation     reprob         
+  reproof         reproof         reprov          reprov         
+  reprove         reprov          reproveable     reprov         
+  reproves        reprov          reproving       reprov         
+  repugn          repugn          repugnancy      repugn         
+  repugnant       repugn          repulse         repuls         
+  repulsed        repuls          repurchas       repurcha       
+  repured         repur           reputation      reput          
+  repute          reput           reputed         reput          
+  reputeless      reputeless      reputes         reput          
+  reputing        reput           request         request        
+  requested       request         requesting      request        
+  requests        request         requiem         requiem        
+  requir          requir          require         requir         
+  required        requir          requires        requir         
+  requireth       requireth       requiring       requir         
+  requisite       requisit        requisites      requisit       
+  requit          requit          requital        requit         
+  requite         requit          requited        requit         
+  requites        requit          rer             rer            
+  rere            rere            rers            rer            
+  rescu           rescu           rescue          rescu          
+  rescued         rescu           rescues         rescu          
+  rescuing        rescu           resemblance     resembl        
+  resemble        resembl         resembled       resembl        
+  resembles       resembl         resembleth      resembleth     
+  resembling      resembl         reserv          reserv         
+  reservation     reserv          reserve         reserv         
+  reserved        reserv          reserves        reserv         
+  reside          resid           residence       resid          
+  resident        resid           resides         resid          
+  residing        resid           residue         residu         
+  resign          resign          resignation     resign         
+  resist          resist          resistance      resist         
+  resisted        resist          resisting       resist         
+  resists         resist          resolute        resolut        
+  resolutely      resolut         resolutes       resolut        
+  resolution      resolut         resolv          resolv         
+  resolve         resolv          resolved        resolv         
+  resolvedly      resolvedli      resolves        resolv         
+  resolveth       resolveth       resort          resort         
+  resorted        resort          resounding      resound        
+  resounds        resound         respeaking      respeak        
+  respect         respect         respected       respect        
+  respecting      respect         respective      respect        
+  respectively    respect         respects        respect        
+  respice         respic          respite         respit         
+  respites        respit          responsive      respons        
+  respose         respos          ress            ress           
+  rest            rest            rested          rest           
+  resteth         resteth         restful         rest           
+  resting         rest            restitution     restitut       
+  restless        restless        restor          restor         
+  restoration     restor          restorative     restor         
+  restore         restor          restored        restor         
+  restores        restor          restoring       restor         
+  restrain        restrain        restrained      restrain       
+  restraining     restrain        restrains       restrain       
+  restraint       restraint       rests           rest           
+  resty           resti           resum           resum          
+  resume          resum           resumes         resum          
+  resurrections   resurrect       retail          retail         
+  retails         retail          retain          retain         
+  retainers       retain          retaining       retain         
+  retell          retel           retention       retent         
+  retentive       retent          retinue         retinu         
+  retir           retir           retire          retir          
+  retired         retir           retirement      retir          
+  retires         retir           retiring        retir          
+  retold          retold          retort          retort         
+  retorts         retort          retourne        retourn        
+  retract         retract         retreat         retreat        
+  retrograde      retrograd       rets            ret            
+  return          return          returned        return         
+  returnest       returnest       returneth       returneth      
+  returning       return          returns         return         
+  revania         revania         reveal          reveal         
+  reveals         reveal          revel           revel          
+  reveler         revel           revell          revel          
+  reveller        revel           revellers       revel          
+  revelling       revel           revelry         revelri        
+  revels          revel           reveng          reveng         
+  revenge         reveng          revenged        reveng         
+  revengeful      reveng          revengement     reveng         
+  revenger        reveng          revengers       reveng         
+  revenges        reveng          revenging       reveng         
+  revengingly     revengingli     revenue         revenu         
+  revenues        revenu          reverb          reverb         
+  reverberate     reverber        reverbs         reverb         
+  reverenc        reverenc        reverence       rever          
+  reverend        reverend        reverent        rever          
+  reverently      rever           revers          rever          
+  reverse         revers          reversion       revers         
+  reverted        revert          review          review         
+  reviewest       reviewest       revil           revil          
+  revile          revil           revisits        revisit        
+  reviv           reviv           revive          reviv          
+  revives         reviv           reviving        reviv          
+  revok           revok           revoke          revok          
+  revokement      revok           revolt          revolt         
+  revolted        revolt          revolting       revolt         
+  revolts         revolt          revolution      revolut        
+  revolutions     revolut         revolve         revolv         
+  revolving       revolv          reward          reward         
+  rewarded        reward          rewarder        reward         
+  rewarding       reward          rewards         reward         
+  reword          reword          reworded        reword         
+  rex             rex             rey             rei            
+  reynaldo        reynaldo        rford           rford          
+  rful            rful            rfull           rfull          
+  rhapsody        rhapsodi        rheims          rheim          
+  rhenish         rhenish         rhesus          rhesu          
+  rhetoric        rhetor          rheum           rheum          
+  rheumatic       rheumat         rheums          rheum          
+  rheumy          rheumi          rhinoceros      rhinocero      
+  rhodes          rhode           rhodope         rhodop         
+  rhubarb         rhubarb         rhym            rhym           
+  rhyme           rhyme           rhymers         rhymer         
+  rhymes          rhyme           rhyming         rhyme          
+  rialto          rialto          rib             rib            
+  ribald          ribald          riband          riband         
+  ribands         riband          ribaudred       ribaudr        
+  ribb            ribb            ribbed          rib            
+  ribbon          ribbon          ribbons         ribbon         
+  ribs            rib             rice            rice           
+  rich            rich            richard         richard        
+  richer          richer          riches          rich           
+  richest         richest         richly          richli         
+  richmond        richmond        richmonds       richmond       
+  rid             rid             riddance        riddanc        
+  ridden          ridden          riddle          riddl          
+  riddles         riddl           riddling        riddl          
+  ride            ride            rider           rider          
+  riders          rider           rides           ride           
+  ridest          ridest          rideth          rideth         
+  ridge           ridg            ridges          ridg           
+  ridiculous      ridicul         riding          ride           
+  rids            rid             rien            rien           
+  ries            ri              rifle           rifl           
+  rift            rift            rifted          rift           
+  rig             rig             rigg            rigg           
+  riggish         riggish         right           right          
+  righteous       righteou        righteously     righteous      
+  rightful        right           rightfully      rightfulli     
+  rightly         rightli         rights          right          
+  rigol           rigol           rigorous        rigor          
+  rigorously      rigor           rigour          rigour         
+  ril             ril             rim             rim            
+  rin             rin             rinaldo         rinaldo        
+  rind            rind            ring            ring           
+  ringing         ring            ringleader      ringlead       
+  ringlets        ringlet         rings           ring           
+  ringwood        ringwood        riot            riot           
+  rioter          rioter          rioting         riot           
+  riotous         riotou          riots           riot           
+  rip             rip             ripe            ripe           
+  ripely          ripe            ripen           ripen          
+  ripened         ripen           ripeness        ripe           
+  ripening        ripen           ripens          ripen          
+  riper           riper           ripest          ripest         
+  riping          ripe            ripp            ripp           
+  ripping         rip             rise            rise           
+  risen           risen           rises           rise           
+  riseth          riseth          rish            rish           
+  rising          rise            rite            rite           
+  rites           rite            rivage          rivag          
+  rival           rival           rivality        rival          
+  rivall          rival           rivals          rival          
+  rive            rive            rived           rive           
+  rivelled        rivel           river           river          
+  rivers          river           rivet           rivet          
+  riveted         rivet           rivets          rivet          
+  rivo            rivo            rj              rj             
+  rless           rless           road            road           
+  roads           road            roam            roam           
+  roaming         roam            roan            roan           
+  roar            roar            roared          roar           
+  roarers         roarer          roaring         roar           
+  roars           roar            roast           roast          
+  roasted         roast           rob             rob            
+  roba            roba            robas           roba           
+  robb            robb            robbed          rob            
+  robber          robber          robbers         robber         
+  robbery         robberi         robbing         rob            
+  robe            robe            robed           robe           
+  robert          robert          robes           robe           
+  robin           robin           robs            rob            
+  robustious      robusti         rochester       rochest        
+  rochford        rochford        rock            rock           
+  rocks           rock            rocky           rocki          
+  rod             rod             rode            rode           
+  roderigo        roderigo        rods            rod            
+  roe             roe             roes            roe            
+  roger           roger           rogero          rogero         
+  rogue           rogu            roguery         rogueri        
+  rogues          rogu            roguish         roguish        
+  roi             roi             roisting        roist          
+  roll            roll            rolled          roll           
+  rolling         roll            rolls           roll           
+  rom             rom             romage          romag          
+  roman           roman           romano          romano         
+  romanos         romano          romans          roman          
+  rome            rome            romeo           romeo          
+  romish          romish          rondure         rondur         
+  ronyon          ronyon          rood            rood           
+  roof            roof            roofs           roof           
+  rook            rook            rooks           rook           
+  rooky           rooki           room            room           
+  rooms           room            root            root           
+  rooted          root            rootedly        rootedli       
+  rooteth         rooteth         rooting         root           
+  roots           root            rope            rope           
+  ropery          roperi          ropes           rope           
+  roping          rope            ros             ro             
+  rosalind        rosalind        rosalinda       rosalinda      
+  rosalinde       rosalind        rosaline        rosalin        
+  roscius         rosciu          rose            rose           
+  rosed           rose            rosemary        rosemari       
+  rosencrantz     rosencrantz     roses           rose           
+  ross            ross            rosy            rosi           
+  rot             rot             rote            rote           
+  roted           rote            rother          rother         
+  rotherham       rotherham       rots            rot            
+  rotted          rot             rotten          rotten         
+  rottenness      rotten          rotting         rot            
+  rotundity       rotund          rouen           rouen          
+  rough           rough           rougher         rougher        
+  roughest        roughest        roughly         roughli        
+  roughness       rough           round           round          
+  rounded         round           roundel         roundel        
+  rounder         rounder         roundest        roundest       
+  rounding        round           roundly         roundli        
+  rounds          round           roundure        roundur        
+  rous            rou             rouse           rous           
+  roused          rous            rousillon       rousillon      
+  rously          rousli          roussi          roussi         
+  rout            rout            routed          rout           
+  routs           rout            rove            rove           
+  rover           rover           row             row            
+  rowel           rowel           rowland         rowland        
+  rowlands        rowland         roy             roi            
+  royal           royal           royalize        royal          
+  royally         royal           royalties       royalti        
+  royalty         royalti         roynish         roynish        
+  rs              rs              rt              rt             
+  rub             rub             rubb            rubb           
+  rubbing         rub             rubbish         rubbish        
+  rubies          rubi            rubious         rubiou         
+  rubs            rub             ruby            rubi           
+  rud             rud             rudand          rudand         
+  rudder          rudder          ruddiness       ruddi          
+  ruddock         ruddock         ruddy           ruddi          
+  rude            rude            rudely          rude           
+  rudeness        rude            ruder           ruder          
+  rudesby         rudesbi         rudest          rudest         
+  rudiments       rudiment        rue             rue            
+  rued            ru              ruff            ruff           
+  ruffian         ruffian         ruffians        ruffian        
+  ruffle          ruffl           ruffling        ruffl          
+  ruffs           ruff            rug             rug            
+  rugby           rugbi           rugemount       rugemount      
+  rugged          rug             ruin            ruin           
+  ruinate         ruinat          ruined          ruin           
+  ruining         ruin            ruinous         ruinou         
+  ruins           ruin            rul             rul            
+  rule            rule            ruled           rule           
+  ruler           ruler           rulers          ruler          
+  rules           rule            ruling          rule           
+  rumble          rumbl           ruminaies       ruminai        
+  ruminat         ruminat         ruminate        rumin          
+  ruminated       rumin           ruminates       rumin          
+  rumination      rumin           rumor           rumor          
+  rumour          rumour          rumourer        rumour         
+  rumours         rumour          rump            rump           
+  run             run             runagate        runag          
+  runagates       runag           runaway         runawai        
+  runaways        runawai         rung            rung           
+  runn            runn            runner          runner         
+  runners         runner          running         run            
+  runs            run             rupture         ruptur         
+  ruptures        ruptur          rural           rural          
+  rush            rush            rushes          rush           
+  rushing         rush            rushling        rushl          
+  rushy           rushi           russet          russet         
+  russia          russia          russian         russian        
+  russians        russian         rust            rust           
+  rusted          rust            rustic          rustic         
+  rustically      rustic          rustics         rustic         
+  rustle          rustl           rustling        rustl          
+  rusts           rust            rusty           rusti          
+  rut             rut             ruth            ruth           
+  ruthful         ruth            ruthless        ruthless       
+  rutland         rutland         ruttish         ruttish        
+  ry              ry              rye             rye            
+  rything         ryth            s               s              
+  sa              sa              saba            saba           
+  sabbath         sabbath         sable           sabl           
+  sables          sabl            sack            sack           
+  sackbuts        sackbut         sackcloth       sackcloth      
+  sacked          sack            sackerson       sackerson      
+  sacks           sack            sacrament       sacrament      
+  sacred          sacr            sacrific        sacrif         
+  sacrifice       sacrific        sacrificers     sacrific       
+  sacrifices      sacrific        sacrificial     sacrifici      
+  sacrificing     sacrif          sacrilegious    sacrilegi      
+  sacring         sacr            sad             sad            
+  sadder          sadder          saddest         saddest        
+  saddle          saddl           saddler         saddler        
+  saddles         saddl           sadly           sadli          
+  sadness         sad             saf             saf            
+  safe            safe            safeguard       safeguard      
+  safely          safe            safer           safer          
+  safest          safest          safeties        safeti         
+  safety          safeti          saffron         saffron        
+  sag             sag             sage            sage           
+  sagittary       sagittari       said            said           
+  saidst          saidst          sail            sail           
+  sailing         sail            sailmaker       sailmak        
+  sailor          sailor          sailors         sailor         
+  sails           sail            sain            sain           
+  saint           saint           sainted         saint          
+  saintlike       saintlik        saints          saint          
+  saith           saith           sake            sake           
+  sakes           sake            sala            sala           
+  salad           salad           salamander      salamand       
+  salary          salari          sale            sale           
+  salerio         salerio         salicam         salicam        
+  salique         saliqu          salisbury       salisburi      
+  sall            sall            sallet          sallet         
+  sallets         sallet          sallies         salli          
+  sallow          sallow          sally           salli          
+  salmon          salmon          salmons         salmon         
+  salt            salt            salter          salter         
+  saltiers        saltier         saltness        salt           
+  saltpetre       saltpetr        salutation      salut          
+  salutations     salut           salute          salut          
+  saluted         salut           salutes         salut          
+  saluteth        saluteth        salv            salv           
+  salvation       salvat          salve           salv           
+  salving         salv            same            same           
+  samingo         samingo         samp            samp           
+  sampire         sampir          sample          sampl          
+  sampler         sampler         sampson         sampson        
+  samson          samson          samsons         samson         
+  sancta          sancta          sanctified      sanctifi       
+  sanctifies      sanctifi        sanctify        sanctifi       
+  sanctimonies    sanctimoni      sanctimonious   sanctimoni     
+  sanctimony      sanctimoni      sanctities      sanctiti       
+  sanctity        sanctiti        sanctuarize     sanctuar       
+  sanctuary       sanctuari       sand            sand           
+  sandal          sandal          sandbag         sandbag        
+  sanded          sand            sands           sand           
+  sandy           sandi           sandys          sandi          
+  sang            sang            sanguine        sanguin        
+  sanguis         sangui          sanity          saniti         
+  sans            san             santrailles     santrail       
+  sap             sap             sapient         sapient        
+  sapit           sapit           sapless         sapless        
+  sapling         sapl            sapphire        sapphir        
+  sapphires       sapphir         saracens        saracen        
+  sarcenet        sarcenet        sard            sard           
+  sardians        sardian         sardinia        sardinia       
+  sardis          sardi           sarum           sarum          
+  sat             sat             satan           satan          
+  satchel         satchel         sate            sate           
+  sated           sate            satiate         satiat         
+  satiety         satieti         satin           satin          
+  satire          satir           satirical       satir          
+  satis           sati            satisfaction    satisfact      
+  satisfied       satisfi         satisfies       satisfi        
+  satisfy         satisfi         satisfying      satisfi        
+  saturday        saturdai        saturdays       saturdai       
+  saturn          saturn          saturnine       saturnin       
+  saturninus      saturninu       satyr           satyr          
+  satyrs          satyr           sauc            sauc           
+  sauce           sauc            sauced          sauc           
+  saucers         saucer          sauces          sauc           
+  saucily         saucili         sauciness       sauci          
+  saucy           sauci           sauf            sauf           
+  saunder         saunder         sav             sav            
+  savage          savag           savagely        savag          
+  savageness      savag           savagery        savageri       
+  savages         savag           save            save           
+  saved           save            saves           save           
+  saving          save            saviour         saviour        
+  savory          savori          savour          savour         
+  savouring       savour          savours         savour         
+  savoury         savouri         savoy           savoi          
+  saw             saw             sawed           saw            
+  sawest          sawest          sawn            sawn           
+  sawpit          sawpit          saws            saw            
+  sawyer          sawyer          saxons          saxon          
+  saxony          saxoni          saxton          saxton         
+  say             sai             sayest          sayest         
+  saying          sai             sayings         sai            
+  says            sai             sayst           sayst          
+  sblood          sblood          sc              sc             
+  scab            scab            scabbard        scabbard       
+  scabs           scab            scaffold        scaffold       
+  scaffoldage     scaffoldag      scal            scal           
+  scald           scald           scalded         scald          
+  scalding        scald           scale           scale          
+  scaled          scale           scales          scale          
+  scaling         scale           scall           scall          
+  scalp           scalp           scalps          scalp          
+  scaly           scali           scamble         scambl         
+  scambling       scambl          scamels         scamel         
+  scan            scan            scandal         scandal        
+  scandaliz       scandaliz       scandalous      scandal        
+  scandy          scandi          scann           scann          
+  scant           scant           scanted         scant          
+  scanter         scanter         scanting        scant          
+  scantling       scantl          scants          scant          
+  scap            scap            scape           scape          
+  scaped          scape           scapes          scape          
+  scapeth         scapeth         scar            scar           
+  scarce          scarc           scarcely        scarc          
+  scarcity        scarciti        scare           scare          
+  scarecrow       scarecrow       scarecrows      scarecrow      
+  scarf           scarf           scarfed         scarf          
+  scarfs          scarf           scaring         scare          
+  scarlet         scarlet         scarr           scarr          
+  scarre          scarr           scars           scar           
+  scarus          scaru           scath           scath          
+  scathe          scath           scathful        scath          
+  scatt           scatt           scatter         scatter        
+  scattered       scatter         scattering      scatter        
+  scatters        scatter         scelera         scelera        
+  scelerisque     scelerisqu      scene           scene          
+  scenes          scene           scent           scent          
+  scented         scent           scept           scept          
+  scepter         scepter         sceptre         sceptr         
+  sceptred        sceptr          sceptres        sceptr         
+  schedule        schedul         schedules       schedul        
+  scholar         scholar         scholarly       scholarli      
+  scholars        scholar         school          school         
+  schoolboy       schoolboi       schoolboys      schoolboi      
+  schoolfellows   schoolfellow    schooling       school         
+  schoolmaster    schoolmast      schoolmasters   schoolmast     
+  schools         school          sciatica        sciatica       
+  sciaticas       sciatica        science         scienc         
+  sciences        scienc          scimitar        scimitar       
+  scion           scion           scions          scion          
+  scissors        scissor         scoff           scoff          
+  scoffer         scoffer         scoffing        scof           
+  scoffs          scoff           scoggin         scoggin        
+  scold           scold           scolding        scold          
+  scolds          scold           sconce          sconc          
+  scone           scone           scope           scope          
+  scopes          scope           scorch          scorch         
+  scorched        scorch          score           score          
+  scored          score           scores          score          
+  scoring         score           scorn           scorn          
+  scorned         scorn           scornful        scorn          
+  scornfully      scornfulli      scorning        scorn          
+  scorns          scorn           scorpion        scorpion       
+  scorpions       scorpion        scot            scot           
+  scotch          scotch          scotches        scotch         
+  scotland        scotland        scots           scot           
+  scottish        scottish        scoundrels      scoundrel      
+  scour           scour           scoured         scour          
+  scourg          scourg          scourge         scourg         
+  scouring        scour           scout           scout          
+  scouts          scout           scowl           scowl          
+  scrap           scrap           scrape          scrape         
+  scraping        scrape          scraps          scrap          
+  scratch         scratch         scratches       scratch        
+  scratching      scratch         scream          scream         
+  screams         scream          screech         screech        
+  screeching      screech         screen          screen         
+  screens         screen          screw           screw          
+  screws          screw           scribbl         scribbl        
+  scribbled       scribbl         scribe          scribe         
+  scribes         scribe          scrimers        scrimer        
+  scrip           scrip           scrippage       scrippag       
+  scripture       scriptur        scriptures      scriptur       
+  scrivener       scriven         scroll          scroll         
+  scrolls         scroll          scroop          scroop         
+  scrowl          scrowl          scroyles        scroyl         
+  scrubbed        scrub           scruple         scrupl         
+  scruples        scrupl          scrupulous      scrupul        
+  scuffles        scuffl          scuffling       scuffl         
+  scullion        scullion        sculls          scull          
+  scum            scum            scurril         scurril        
+  scurrility      scurril         scurrilous      scurril        
+  scurvy          scurvi          scuse           scuse          
+  scut            scut            scutcheon       scutcheon      
+  scutcheons      scutcheon       scylla          scylla         
+  scythe          scyth           scythed         scyth          
+  scythia         scythia         scythian        scythian       
+  sdeath          sdeath          se              se             
+  sea             sea             seacoal         seacoal        
+  seafaring       seafar          seal            seal           
+  sealed          seal            sealing         seal           
+  seals           seal            seam            seam           
+  seamen          seamen          seamy           seami          
+  seaport         seaport         sear            sear           
+  searce          searc           search          search         
+  searchers       searcher        searches        search         
+  searcheth       searcheth       searching       search         
+  seared          sear            seas            sea            
+  seasick         seasick         seaside         seasid         
+  season          season          seasoned        season         
+  seasons         season          seat            seat           
+  seated          seat            seats           seat           
+  sebastian       sebastian       second          second         
+  secondarily     secondarili     secondary       secondari      
+  seconded        second          seconds         second         
+  secrecy         secreci         secret          secret         
+  secretaries     secretari       secretary       secretari      
+  secretly        secretli        secrets         secret         
+  sect            sect            sectary         sectari        
+  sects           sect            secundo         secundo        
+  secure          secur           securely        secur          
+  securing        secur           security        secur          
+  sedg            sedg            sedge           sedg           
+  sedges          sedg            sedgy           sedgi          
+  sedition        sedit           seditious       sediti         
+  seduc           seduc           seduce          seduc          
+  seduced         seduc           seducer         seduc          
+  seducing        seduc           see             see            
+  seed            seed            seeded          seed           
+  seedness        seed            seeds           seed           
+  seedsman        seedsman        seein           seein          
+  seeing          see             seek            seek           
+  seeking         seek            seeks           seek           
+  seel            seel            seeling         seel           
+  seely           seeli           seem            seem           
+  seemed          seem            seemers         seemer         
+  seemest         seemest         seemeth         seemeth        
+  seeming         seem            seemingly       seemingli      
+  seemly          seemli          seems           seem           
+  seen            seen            seer            seer           
+  sees            see             seese           sees           
+  seest           seest           seethe          seeth          
+  seethes         seeth           seething        seeth          
+  seeting         seet            segregation     segreg         
+  seigneur        seigneur        seigneurs       seigneur       
+  seiz            seiz            seize           seiz           
+  seized          seiz            seizes          seiz           
+  seizeth         seizeth         seizing         seiz           
+  seizure         seizur          seld            seld           
+  seldom          seldom          select          select         
+  seleucus        seleucu         self            self           
+  selfsame        selfsam         sell            sell           
+  seller          seller          selling         sell           
+  sells           sell            selves          selv           
+  semblable       semblabl        semblably       semblabl       
+  semblance       semblanc        semblances      semblanc       
+  semblative      sembl           semi            semi           
+  semicircle      semicircl       semiramis       semirami       
+  semper          semper          sempronius      semproniu      
+  senate          senat           senator         senat          
+  senators        senat           send            send           
+  sender          sender          sendeth         sendeth        
+  sending         send            sends           send           
+  seneca          seneca          senior          senior         
+  seniory         seniori         senis           seni           
+  sennet          sennet          senoys          senoi          
+  sense           sens            senseless       senseless      
+  senses          sens            sensible        sensibl        
+  sensibly        sensibl         sensual         sensual        
+  sensuality      sensual         sent            sent           
+  sentenc         sentenc         sentence        sentenc        
+  sentences       sentenc         sententious     sententi       
+  sentinel        sentinel        sentinels       sentinel       
+  separable       separ           separate        separ          
+  separated       separ           separates       separ          
+  separation      separ           septentrion     septentrion    
+  sepulchre       sepulchr        sepulchres      sepulchr       
+  sepulchring     sepulchr        sequel          sequel         
+  sequence        sequenc         sequent         sequent        
+  sequest         sequest         sequester       sequest        
+  sequestration   sequestr        sere            sere           
+  serenis         sereni          serge           serg           
+  sergeant        sergeant        serious         seriou         
+  seriously       serious         sermon          sermon         
+  sermons         sermon          serpent         serpent        
+  serpentine      serpentin       serpents        serpent        
+  serpigo         serpigo         serv            serv           
+  servant         servant         servanted       servant        
+  servants        servant         serve           serv           
+  served          serv            server          server         
+  serves          serv            serveth         serveth        
+  service         servic          serviceable     servic         
+  services        servic          servile         servil         
+  servility       servil          servilius       serviliu       
+  serving         serv            servingman      servingman     
+  servingmen      servingmen      serviteur       serviteur      
+  servitor        servitor        servitors       servitor       
+  servitude       servitud        sessa           sessa          
+  session         session         sessions        session        
+  sestos          sesto           set             set            
+  setebos         setebo          sets            set            
+  setter          setter          setting         set            
+  settle          settl           settled         settl          
+  settlest        settlest        settling        settl          
+  sev             sev             seven           seven          
+  sevenfold       sevenfold       sevennight      sevennight     
+  seventeen       seventeen       seventh         seventh        
+  seventy         seventi         sever           sever          
+  several         sever           severally       sever          
+  severals        sever           severe          sever          
+  severed         sever           severely        sever          
+  severest        severest        severing        sever          
+  severity        sever           severn          severn         
+  severs          sever           sew             sew            
+  seward          seward          sewer           sewer          
+  sewing          sew             sex             sex            
+  sexes           sex             sexton          sexton         
+  sextus          sextu           seymour         seymour        
+  seyton          seyton          sfoot           sfoot          
+  sh              sh              shackle         shackl         
+  shackles        shackl          shade           shade          
+  shades          shade           shadow          shadow         
+  shadowed        shadow          shadowing       shadow         
+  shadows         shadow          shadowy         shadowi        
+  shady           shadi           shafalus        shafalu        
+  shaft           shaft           shafts          shaft          
+  shag            shag            shak            shak           
+  shake           shake           shaked          shake          
+  shaken          shaken          shakes          shake          
+  shaking         shake           shales          shale          
+  shall           shall           shallenge       shalleng       
+  shallow         shallow         shallowest      shallowest     
+  shallowly       shallowli       shallows        shallow        
+  shalt           shalt           sham            sham           
+  shambles        shambl          shame           shame          
+  shamed          shame           shameful        shame          
+  shamefully      shamefulli      shameless       shameless      
+  shames          shame           shamest         shamest        
+  shaming         shame           shank           shank          
+  shanks          shank           shap            shap           
+  shape           shape           shaped          shape          
+  shapeless       shapeless       shapen          shapen         
+  shapes          shape           shaping         shape          
+  shar            shar            shard           shard          
+  sharded         shard           shards          shard          
+  share           share           shared          share          
+  sharers         sharer          shares          share          
+  sharing         share           shark           shark          
+  sharp           sharp           sharpen         sharpen        
+  sharpened       sharpen         sharpens        sharpen        
+  sharper         sharper         sharpest        sharpest       
+  sharply         sharpli         sharpness       sharp          
+  sharps          sharp           shatter         shatter        
+  shav            shav            shave           shave          
+  shaven          shaven          shaw            shaw           
+  she             she             sheaf           sheaf          
+  sheal           sheal           shear           shear          
+  shearers        shearer         shearing        shear          
+  shearman        shearman        shears          shear          
+  sheath          sheath          sheathe         sheath         
+  sheathed        sheath          sheathes        sheath         
+  sheathing       sheath          sheaved         sheav          
+  sheaves         sheav           shed            shed           
+  shedding        shed            sheds           shed           
+  sheen           sheen           sheep           sheep          
+  sheepcote       sheepcot        sheepcotes      sheepcot       
+  sheeps          sheep           sheepskins      sheepskin      
+  sheer           sheer           sheet           sheet          
+  sheeted         sheet           sheets          sheet          
+  sheffield       sheffield       shelf           shelf          
+  shell           shell           shells          shell          
+  shelt           shelt           shelter         shelter        
+  shelters        shelter         shelves         shelv          
+  shelving        shelv           shelvy          shelvi         
+  shent           shent           shepherd        shepherd       
+  shepherdes      shepherd        shepherdess     shepherdess    
+  shepherdesses   shepherdess     shepherds       shepherd       
+  sher            sher            sheriff         sheriff        
+  sherris         sherri          shes            she            
+  sheweth         sheweth         shield          shield         
+  shielded        shield          shields         shield         
+  shift           shift           shifted         shift          
+  shifting        shift           shifts          shift          
+  shilling        shill           shillings       shill          
+  shin            shin            shine           shine          
+  shines          shine           shineth         shineth        
+  shining         shine           shins           shin           
+  shiny           shini           ship            ship           
+  shipboard       shipboard       shipman         shipman        
+  shipmaster      shipmast        shipmen         shipmen        
+  shipp           shipp           shipped         ship           
+  shipping        ship            ships           ship           
+  shipt           shipt           shipwreck       shipwreck      
+  shipwrecking    shipwreck       shipwright      shipwright     
+  shipwrights     shipwright      shire           shire          
+  shirley         shirlei         shirt           shirt          
+  shirts          shirt           shive           shive          
+  shiver          shiver          shivering       shiver         
+  shivers         shiver          shoal           shoal          
+  shoals          shoal           shock           shock          
+  shocks          shock           shod            shod           
+  shoe            shoe            shoeing         shoe           
+  shoemaker       shoemak         shoes           shoe           
+  shog            shog            shone           shone          
+  shook           shook           shoon           shoon          
+  shoot           shoot           shooter         shooter        
+  shootie         shooti          shooting        shoot          
+  shoots          shoot           shop            shop           
+  shops           shop            shore           shore          
+  shores          shore           shorn           shorn          
+  short           short           shortcake       shortcak       
+  shorten         shorten         shortened       shorten        
+  shortens        shorten         shorter         shorter        
+  shortly         shortli         shortness       short          
+  shot            shot            shotten         shotten        
+  shoughs         shough          should          should         
+  shoulder        shoulder        shouldering     shoulder       
+  shoulders       shoulder        shouldst        shouldst       
+  shout           shout           shouted         shout          
+  shouting        shout           shouts          shout          
+  shov            shov            shove           shove          
+  shovel          shovel          shovels         shovel         
+  show            show            showed          show           
+  shower          shower          showers         shower         
+  showest         showest         showing         show           
+  shown           shown           shows           show           
+  shreds          shred           shrew           shrew          
+  shrewd          shrewd          shrewdly        shrewdli       
+  shrewdness      shrewd          shrewish        shrewish       
+  shrewishly      shrewishli      shrewishness    shrewish       
+  shrews          shrew           shrewsbury      shrewsburi     
+  shriek          shriek          shrieking       shriek         
+  shrieks         shriek          shrieve         shriev         
+  shrift          shrift          shrill          shrill         
+  shriller        shriller        shrills         shrill         
+  shrilly         shrilli         shrimp          shrimp         
+  shrine          shrine          shrink          shrink         
+  shrinking       shrink          shrinks         shrink         
+  shriv           shriv           shrive          shrive         
+  shriver         shriver         shrives         shrive         
+  shriving        shrive          shroud          shroud         
+  shrouded        shroud          shrouding       shroud         
+  shrouds         shroud          shrove          shrove         
+  shrow           shrow           shrows          shrow          
+  shrub           shrub           shrubs          shrub          
+  shrug           shrug           shrugs          shrug          
+  shrunk          shrunk          shudd           shudd          
+  shudders        shudder         shuffl          shuffl         
+  shuffle         shuffl          shuffled        shuffl         
+  shuffling       shuffl          shun            shun           
+  shunless        shunless        shunn           shunn          
+  shunned         shun            shunning        shun           
+  shuns           shun            shut            shut           
+  shuts           shut            shuttle         shuttl         
+  shy             shy             shylock         shylock        
+  si              si              sibyl           sibyl          
+  sibylla         sibylla         sibyls          sibyl          
+  sicil           sicil           sicilia         sicilia        
+  sicilian        sicilian        sicilius        siciliu        
+  sicils          sicil           sicily          sicili         
+  sicinius        siciniu         sick            sick           
+  sicken          sicken          sickens         sicken         
+  sicker          sicker          sickle          sickl          
+  sicklemen       sicklemen       sicklied        sickli         
+  sickliness      sickli          sickly          sickli         
+  sickness        sick            sicles          sicl           
+  sicyon          sicyon          side            side           
+  sided           side            sides           side           
+  siege           sieg            sieges          sieg           
+  sienna          sienna          sies            si             
+  sieve           siev            sift            sift           
+  sifted          sift            sigeia          sigeia         
+  sigh            sigh            sighed          sigh           
+  sighing         sigh            sighs           sigh           
+  sight           sight           sighted         sight          
+  sightless       sightless       sightly         sightli        
+  sights          sight           sign            sign           
+  signal          signal          signet          signet         
+  signieur        signieur        significant     signific       
+  significants    signific        signified       signifi        
+  signifies       signifi         signify         signifi        
+  signifying      signifi         signior         signior        
+  signiories      signiori        signiors        signior        
+  signiory        signiori        signor          signor         
+  signories       signori         signs           sign           
+  signum          signum          silenc          silenc         
+  silence         silenc          silenced        silenc         
+  silencing       silenc          silent          silent         
+  silently        silent          silius          siliu          
+  silk            silk            silken          silken         
+  silkman         silkman         silks           silk           
+  silliest        silliest        silliness       silli          
+  silling         sill            silly           silli          
+  silva           silva           silver          silver         
+  silvered        silver          silverly        silverli       
+  silvia          silvia          silvius         silviu         
+  sima            sima            simile          simil          
+  similes         simil           simois          simoi          
+  simon           simon           simony          simoni         
+  simp            simp            simpcox         simpcox        
+  simple          simpl           simpleness      simpl          
+  simpler         simpler         simples         simpl          
+  simplicity      simplic         simply          simpli         
+  simular         simular         simulation      simul          
+  sin             sin             since           sinc           
+  sincere         sincer          sincerely       sincer         
+  sincerity       sincer          sinel           sinel          
+  sinew           sinew           sinewed         sinew          
+  sinews          sinew           sinewy          sinewi         
+  sinful          sin             sinfully        sinfulli       
+  sing            sing            singe           sing           
+  singeing        sing            singer          singer         
+  singes          sing            singeth         singeth        
+  singing         sing            single          singl          
+  singled         singl           singleness      singl          
+  singly          singli          sings           sing           
+  singular        singular        singulariter    singularit     
+  singularities   singular        singularity     singular       
+  singuled        singul          sinister        sinist         
+  sink            sink            sinking         sink           
+  sinks           sink            sinn            sinn           
+  sinner          sinner          sinners         sinner         
+  sinning         sin             sinon           sinon          
+  sins            sin             sip             sip            
+  sipping         sip             sir             sir            
+  sire            sire            siren           siren          
+  sirrah          sirrah          sirs            sir            
+  sist            sist            sister          sister         
+  sisterhood      sisterhood      sisterly        sisterli       
+  sisters         sister          sit             sit            
+  sith            sith            sithence        sithenc        
+  sits            sit             sitting         sit            
+  situate         situat          situation       situat         
+  situations      situat          siward          siward         
+  six             six             sixpence        sixpenc        
+  sixpences       sixpenc         sixpenny        sixpenni       
+  sixteen         sixteen         sixth           sixth          
+  sixty           sixti           siz             siz            
+  size            size            sizes           size           
+  sizzle          sizzl           skains          skain          
+  skamble         skambl          skein           skein          
+  skelter         skelter         skies           ski            
+  skilful         skil            skilfully       skilfulli      
+  skill           skill           skilless        skilless       
+  skillet         skillet         skillful        skill          
+  skills          skill           skim            skim           
+  skimble         skimbl          skin            skin           
+  skinker         skinker         skinny          skinni         
+  skins           skin            skip            skip           
+  skipp           skipp           skipper         skipper        
+  skipping        skip            skirmish        skirmish       
+  skirmishes      skirmish        skirr           skirr          
+  skirted         skirt           skirts          skirt          
+  skittish        skittish        skulking        skulk          
+  skull           skull           skulls          skull          
+  sky             sky             skyey           skyei          
+  skyish          skyish          slab            slab           
+  slack           slack           slackly         slackli        
+  slackness       slack           slain           slain          
+  slake           slake           sland           sland          
+  slander         slander         slandered       slander        
+  slanderer       slander         slanderers      slander        
+  slandering      slander         slanderous      slander        
+  slanders        slander         slash           slash          
+  slaught         slaught         slaughter       slaughter      
+  slaughtered     slaughter       slaughterer     slaughter      
+  slaughterman    slaughterman    slaughtermen    slaughtermen   
+  slaughterous    slaughter       slaughters      slaughter      
+  slave           slave           slaver          slaver         
+  slavery         slaveri         slaves          slave          
+  slavish         slavish         slay            slai           
+  slayeth         slayeth         slaying         slai           
+  slays           slai            sleave          sleav          
+  sledded         sled            sleek           sleek          
+  sleekly         sleekli         sleep           sleep          
+  sleeper         sleeper         sleepers        sleeper        
+  sleepest        sleepest        sleeping        sleep          
+  sleeps          sleep           sleepy          sleepi         
+  sleeve          sleev           sleeves         sleev          
+  sleid           sleid           sleided         sleid          
+  sleight         sleight         sleights        sleight        
+  slender         slender         slenderer       slender        
+  slenderly       slenderli       slept           slept          
+  slew            slew            slewest         slewest        
+  slice           slice           slid            slid           
+  slide           slide           slides          slide          
+  sliding         slide           slight          slight         
+  slighted        slight          slightest       slightest      
+  slightly        slightli        slightness      slight         
+  slights         slight          slily           slili          
+  slime           slime           slimy           slimi          
+  slings          sling           slink           slink          
+  slip            slip            slipp           slipp          
+  slipper         slipper         slippers        slipper        
+  slippery        slipperi        slips           slip           
+  slish           slish           slit            slit           
+  sliver          sliver          slobb           slobb          
+  slomber         slomber         slop            slop           
+  slope           slope           slops           slop           
+  sloth           sloth           slothful        sloth          
+  slough          slough          slovenly        slovenli       
+  slovenry        slovenri        slow            slow           
+  slower          slower          slowly          slowli         
+  slowness        slow            slubber         slubber        
+  slug            slug            sluggard        sluggard       
+  sluggardiz      sluggardiz      sluggish        sluggish       
+  sluic           sluic           slumb           slumb          
+  slumber         slumber         slumbers        slumber        
+  slumbery        slumberi        slunk           slunk          
+  slut            slut            sluts           slut           
+  sluttery        slutteri        sluttish        sluttish       
+  sluttishness    sluttish        sly             sly            
+  slys            sly             smack           smack          
+  smacking        smack           smacks          smack          
+  small           small           smaller         smaller        
+  smallest        smallest        smallness       small          
+  smalus          smalu           smart           smart          
+  smarting        smart           smartly         smartli        
+  smatch          smatch          smatter         smatter        
+  smear           smear           smell           smell          
+  smelling        smell           smells          smell          
+  smelt           smelt           smil            smil           
+  smile           smile           smiled          smile          
+  smiles          smile           smilest         smilest        
+  smilets         smilet          smiling         smile          
+  smilingly       smilingli       smirch          smirch         
+  smirched        smirch          smit            smit           
+  smite           smite           smites          smite          
+  smith           smith           smithfield      smithfield     
+  smock           smock           smocks          smock          
+  smok            smok            smoke           smoke          
+  smoked          smoke           smokes          smoke          
+  smoking         smoke           smoky           smoki          
+  smooth          smooth          smoothed        smooth         
+  smoothing       smooth          smoothly        smoothli       
+  smoothness      smooth          smooths         smooth         
+  smote           smote           smoth           smoth          
+  smother         smother         smothered       smother        
+  smothering      smother         smug            smug           
+  smulkin         smulkin         smutch          smutch         
+  snaffle         snaffl          snail           snail          
+  snails          snail           snake           snake          
+  snakes          snake           snaky           snaki          
+  snap            snap            snapp           snapp          
+  snapper         snapper         snar            snar           
+  snare           snare           snares          snare          
+  snarl           snarl           snarleth        snarleth       
+  snarling        snarl           snatch          snatch         
+  snatchers       snatcher        snatches        snatch         
+  snatching       snatch          sneak           sneak          
+  sneaking        sneak           sneap           sneap          
+  sneaping        sneap           sneck           sneck          
+  snip            snip            snipe           snipe          
+  snipt           snipt           snore           snore          
+  snores          snore           snoring         snore          
+  snorting        snort           snout           snout          
+  snow            snow            snowballs       snowbal        
+  snowed          snow            snowy           snowi          
+  snuff           snuff           snuffs          snuff          
+  snug            snug            so              so             
+  soak            soak            soaking         soak           
+  soaks           soak            soar            soar           
+  soaring         soar            soars           soar           
+  sob             sob             sobbing         sob            
+  sober           sober           soberly         soberli        
+  sobriety        sobrieti        sobs            sob            
+  sociable        sociabl         societies       societi        
+  society         societi         socks           sock           
+  socrates        socrat          sod             sod            
+  sodden          sodden          soe             soe            
+  soever          soever          soft            soft           
+  soften          soften          softens         soften         
+  softer          softer          softest         softest        
+  softly          softli          softness        soft           
+  soil            soil            soiled          soil           
+  soilure         soilur          soit            soit           
+  sojourn         sojourn         sol             sol            
+  sola            sola            solace          solac          
+  solanio         solanio         sold            sold           
+  soldat          soldat          solder          solder         
+  soldest         soldest         soldier         soldier        
+  soldiers        soldier         soldiership     soldiership    
+  sole            sole            solely          sole           
+  solem           solem           solemn          solemn         
+  solemness       solem           solemnities     solemn         
+  solemnity       solemn          solemniz        solemniz       
+  solemnize       solemn          solemnized      solemn         
+  solemnly        solemnli        soles           sole           
+  solicit         solicit         solicitation    solicit        
+  solicited       solicit         soliciting      solicit        
+  solicitings     solicit         solicitor       solicitor      
+  solicits        solicit         solid           solid          
+  solidares       solidar         solidity        solid          
+  solinus         solinu          solitary        solitari       
+  solomon         solomon         solon           solon          
+  solum           solum           solus           solu           
+  solyman         solyman         some            some           
+  somebody        somebodi        someone         someon         
+  somerset        somerset        somerville      somervil       
+  something       someth          sometime        sometim        
+  sometimes       sometim         somever         somev          
+  somewhat        somewhat        somewhere       somewher       
+  somewhither     somewhith       somme           somm           
+  son             son             sonance         sonanc         
+  song            song            songs           song           
+  sonnet          sonnet          sonneting       sonnet         
+  sonnets         sonnet          sons            son            
+  sont            sont            sonties         sonti          
+  soon            soon            sooner          sooner         
+  soonest         soonest         sooth           sooth          
+  soothe          sooth           soothers        soother        
+  soothing        sooth           soothsay        soothsai       
+  soothsayer      soothsay        sooty           sooti          
+  sop             sop             sophister       sophist        
+  sophisticated   sophist         sophy           sophi          
+  sops            sop             sorcerer        sorcer         
+  sorcerers       sorcer          sorceress       sorceress      
+  sorceries       sorceri         sorcery         sorceri        
+  sore            sore            sorel           sorel          
+  sorely          sore            sorer           sorer          
+  sores           sore            sorrier         sorrier        
+  sorriest        sorriest        sorrow          sorrow         
+  sorrowed        sorrow          sorrowest       sorrowest      
+  sorrowful       sorrow          sorrowing       sorrow         
+  sorrows         sorrow          sorry           sorri          
+  sort            sort            sortance        sortanc        
+  sorted          sort            sorting         sort           
+  sorts           sort            sossius         sossiu         
+  sot             sot             soto            soto           
+  sots            sot             sottish         sottish        
+  soud            soud            sought          sought         
+  soul            soul            sould           sould          
+  soulless        soulless        souls           soul           
+  sound           sound           sounded         sound          
+  sounder         sounder         soundest        soundest       
+  sounding        sound           soundless       soundless      
+  soundly         soundli         soundness       sound          
+  soundpost       soundpost       sounds          sound          
+  sour            sour            source          sourc          
+  sources         sourc           sourest         sourest        
+  sourly          sourli          sours           sour           
+  sous            sou             souse           sous           
+  south           south           southam         southam        
+  southampton     southampton     southerly       southerli      
+  southern        southern        southward       southward      
+  southwark       southwark       southwell       southwel       
+  souviendrai     souviendrai     sov             sov            
+  sovereign       sovereign       sovereignest    sovereignest   
+  sovereignly     sovereignli     sovereignty     sovereignti    
+  sovereignvours  sovereignvour   sow             sow            
+  sowing          sow             sowl            sowl           
+  sowter          sowter          space           space          
+  spaces          space           spacious        spaciou        
+  spade           spade           spades          spade          
+  spain           spain           spak            spak           
+  spake           spake           spakest         spakest        
+  span            span            spangle         spangl         
+  spangled        spangl          spaniard        spaniard       
+  spaniel         spaniel         spaniels        spaniel        
+  spanish         spanish         spann           spann          
+  spans           span            spar            spar           
+  spare           spare           spares          spare          
+  sparing         spare           sparingly       sparingli      
+  spark           spark           sparkle         sparkl         
+  sparkles        sparkl          sparkling       sparkl         
+  sparks          spark           sparrow         sparrow        
+  sparrows        sparrow         sparta          sparta         
+  spartan         spartan         spavin          spavin         
+  spavins         spavin          spawn           spawn          
+  speak           speak           speaker         speaker        
+  speakers        speaker         speakest        speakest       
+  speaketh        speaketh        speaking        speak          
+  speaks          speak           spear           spear          
+  speargrass      speargrass      spears          spear          
+  special         special         specialities    special        
+  specially       special         specialties     specialti      
+  specialty       specialti       specify         specifi        
+  speciously      specious        spectacle       spectacl       
+  spectacled      spectacl        spectacles      spectacl       
+  spectators      spectat         spectatorship   spectatorship  
+  speculation     specul          speculations    specul         
+  speculative     specul          sped            sped           
+  speech          speech          speeches        speech         
+  speechless      speechless      speed           speed          
+  speeded         speed           speedier        speedier       
+  speediest       speediest       speedily        speedili       
+  speediness      speedi          speeding        speed          
+  speeds          speed           speedy          speedi         
+  speens          speen           spell           spell          
+  spelling        spell           spells          spell          
+  spelt           spelt           spencer         spencer        
+  spend           spend           spendest        spendest       
+  spending        spend           spends          spend          
+  spendthrift     spendthrift     spent           spent          
+  sperato         sperato         sperm           sperm          
+  spero           spero           sperr           sperr          
+  spher           spher           sphere          sphere         
+  sphered         sphere          spheres         sphere         
+  spherical       spheric         sphery          spheri         
+  sphinx          sphinx          spice           spice          
+  spiced          spice           spicery         spiceri        
+  spices          spice           spider          spider         
+  spiders         spider          spied           spi            
+  spies           spi             spieth          spieth         
+  spightfully     spightfulli     spigot          spigot         
+  spill           spill           spilling        spill          
+  spills          spill           spilt           spilt          
+  spilth          spilth          spin            spin           
+  spinii          spinii          spinners        spinner        
+  spinster        spinster        spinsters       spinster       
+  spire           spire           spirit          spirit         
+  spirited        spirit          spiritless      spiritless     
+  spirits         spirit          spiritual       spiritu        
+  spiritualty     spiritualti     spirt           spirt          
+  spit            spit            spital          spital         
+  spite           spite           spited          spite          
+  spiteful        spite           spites          spite          
+  spits           spit            spitted         spit           
+  spitting        spit            splay           splai          
+  spleen          spleen          spleenful       spleen         
+  spleens         spleen          spleeny         spleeni        
+  splendour       splendour       splenitive      splenit        
+  splinter        splinter        splinters       splinter       
+  split           split           splits          split          
+  splitted        split           splitting       split          
+  spoil           spoil           spoils          spoil          
+  spok            spok            spoke           spoke          
+  spoken          spoken          spokes          spoke          
+  spokesman       spokesman       sponge          spong          
+  spongy          spongi          spoon           spoon          
+  spoons          spoon           sport           sport          
+  sportful        sport           sporting        sport          
+  sportive        sportiv         sports          sport          
+  spot            spot            spotless        spotless       
+  spots           spot            spotted         spot           
+  spousal         spousal         spouse          spous          
+  spout           spout           spouting        spout          
+  spouts          spout           sprag           sprag          
+  sprang          sprang          sprat           sprat          
+  sprawl          sprawl          spray           sprai          
+  sprays          sprai           spread          spread         
+  spreading       spread          spreads         spread         
+  sprighted       spright         sprightful      spright        
+  sprightly       sprightli       sprigs          sprig          
+  spring          spring          springe         spring         
+  springes        spring          springeth       springeth      
+  springhalt      springhalt      springing       spring         
+  springs         spring          springtime      springtim      
+  sprinkle        sprinkl         sprinkles       sprinkl        
+  sprite          sprite          sprited         sprite         
+  spritely        sprite          sprites         sprite         
+  spriting        sprite          sprout          sprout         
+  spruce          spruce          sprung          sprung         
+  spun            spun            spur            spur           
+  spurio          spurio          spurn           spurn          
+  spurns          spurn           spurr           spurr          
+  spurrer         spurrer         spurring        spur           
+  spurs           spur            spy             spy            
+  spying          spy             squabble        squabbl        
+  squadron        squadron        squadrons       squadron       
+  squand          squand          squar           squar          
+  square          squar           squarer         squarer        
+  squares         squar           squash          squash         
+  squeak          squeak          squeaking       squeak         
+  squeal          squeal          squealing       squeal         
+  squeezes        squeez          squeezing       squeez         
+  squele          squel           squier          squier         
+  squints         squint          squiny          squini         
+  squire          squir           squires         squir          
+  squirrel        squirrel        st              st             
+  stab            stab            stabb           stabb          
+  stabbed         stab            stabbing        stab           
+  stable          stabl           stableness      stabl          
+  stables         stabl           stablish        stablish       
+  stablishment    stablish        stabs           stab           
+  stacks          stack           staff           staff          
+  stafford        stafford        staffords       stafford       
+  staffordshire   staffordshir    stag            stag           
+  stage           stage           stages          stage          
+  stagger         stagger         staggering      stagger        
+  staggers        stagger         stags           stag           
+  staid           staid           staider         staider        
+  stain           stain           stained         stain          
+  staines         stain           staineth        staineth       
+  staining        stain           stainless       stainless      
+  stains          stain           stair           stair          
+  stairs          stair           stake           stake          
+  stakes          stake           stale           stale          
+  staled          stale           stalk           stalk          
+  stalking        stalk           stalks          stalk          
+  stall           stall           stalling        stall          
+  stalls          stall           stamford        stamford       
+  stammer         stammer         stamp           stamp          
+  stamped         stamp           stamps          stamp          
+  stanch          stanch          stanchless      stanchless     
+  stand           stand           standard        standard       
+  standards       standard        stander         stander        
+  standers        stander         standest        standest       
+  standeth        standeth        standing        stand          
+  stands          stand           staniel         staniel        
+  stanley         stanlei         stanze          stanz          
+  stanzo          stanzo          stanzos         stanzo         
+  staple          stapl           staples         stapl          
+  star            star            stare           stare          
+  stared          stare           stares          stare          
+  staring         stare           starings        stare          
+  stark           stark           starkly         starkli        
+  starlight       starlight       starling        starl          
+  starr           starr           starry          starri         
+  stars           star            start           start          
+  started         start           starting        start          
+  startingly      startingli      startle         startl         
+  startles        startl          starts          start          
+  starv           starv           starve          starv          
+  starved         starv           starvelackey    starvelackei   
+  starveling      starvel         starveth        starveth       
+  starving        starv           state           state          
+  statelier       stateli         stately         state          
+  states          state           statesman       statesman      
+  statesmen       statesmen       statilius       statiliu       
+  station         station         statist         statist        
+  statists        statist         statue          statu          
+  statues         statu           stature         statur         
+  statures        statur          statute         statut         
+  statutes        statut          stave           stave          
+  staves          stave           stay            stai           
+  stayed          stai            stayest         stayest        
+  staying         stai            stays           stai           
+  stead           stead           steaded         stead          
+  steadfast       steadfast       steadier        steadier       
+  steads          stead           steal           steal          
+  stealer         stealer         stealers        stealer        
+  stealing        steal           steals          steal          
+  stealth         stealth         stealthy        stealthi       
+  steed           steed           steeds          steed          
+  steel           steel           steeled         steel          
+  steely          steeli          steep           steep          
+  steeped         steep           steeple         steepl         
+  steeples        steepl          steeps          steep          
+  steepy          steepi          steer           steer          
+  steerage        steerag         steering        steer          
+  steers          steer           stelled         stell          
+  stem            stem            stemming        stem           
+  stench          stench          step            step           
+  stepdame        stepdam         stephano        stephano       
+  stephen         stephen         stepmothers     stepmoth       
+  stepp           stepp           stepping        step           
+  steps           step            sterile         steril         
+  sterility       steril          sterling        sterl          
+  stern           stern           sternage        sternag        
+  sterner         sterner         sternest        sternest       
+  sternness       stern           steterat        steterat       
+  stew            stew            steward         steward        
+  stewards        steward         stewardship     stewardship    
+  stewed          stew            stews           stew           
+  stick           stick           sticking        stick          
+  stickler        stickler        sticks          stick          
+  stiff           stiff           stiffen         stiffen        
+  stiffly         stiffli         stifle          stifl          
+  stifled         stifl           stifles         stifl          
+  stigmatic       stigmat         stigmatical     stigmat        
+  stile           stile           still           still          
+  stiller         stiller         stillest        stillest       
+  stillness       still           stilly          stilli         
+  sting           sting           stinging        sting          
+  stingless       stingless       stings          sting          
+  stink           stink           stinking        stink          
+  stinkingly      stinkingli      stinks          stink          
+  stint           stint           stinted         stint          
+  stints          stint           stir            stir           
+  stirr           stirr           stirred         stir           
+  stirrer         stirrer         stirrers        stirrer        
+  stirreth        stirreth        stirring        stir           
+  stirrup         stirrup         stirrups        stirrup        
+  stirs           stir            stitchery       stitcheri      
+  stitches        stitch          stithied        stithi         
+  stithy          stithi          stoccadoes      stoccado       
+  stoccata        stoccata        stock           stock          
+  stockfish       stockfish       stocking        stock          
+  stockings       stock           stockish        stockish       
+  stocks          stock           stog            stog           
+  stogs           stog            stoics          stoic          
+  stokesly        stokesli        stol            stol           
+  stole           stole           stolen          stolen         
+  stolest         stolest         stomach         stomach        
+  stomachers      stomach         stomaching      stomach        
+  stomachs        stomach         ston            ston           
+  stone           stone           stonecutter     stonecutt      
+  stones          stone           stonish         stonish        
+  stony           stoni           stood           stood          
+  stool           stool           stools          stool          
+  stoop           stoop           stooping        stoop          
+  stoops          stoop           stop            stop           
+  stope           stope           stopp           stopp          
+  stopped         stop            stopping        stop           
+  stops           stop            stor            stor           
+  store           store           storehouse      storehous      
+  storehouses     storehous       stores          store          
+  stories         stori           storm           storm          
+  stormed         storm           storming        storm          
+  storms          storm           stormy          stormi         
+  story           stori           stoup           stoup          
+  stoups          stoup           stout           stout          
+  stouter         stouter         stoutly         stoutli        
+  stoutness       stout           stover          stover         
+  stow            stow            stowage         stowag         
+  stowed          stow            strachy         strachi        
+  stragglers      straggler       straggling      straggl        
+  straight        straight        straightest     straightest    
+  straightway     straightwai     strain          strain         
+  strained        strain          straining       strain         
+  strains         strain          strait          strait         
+  straited        strait          straiter        straiter       
+  straitly        straitli        straitness      strait         
+  straits         strait          strand          strand         
+  strange         strang          strangely       strang         
+  strangeness     strang          stranger        stranger       
+  strangers       stranger        strangest       strangest      
+  strangle        strangl         strangled       strangl        
+  strangler       strangler       strangles       strangl        
+  strangling      strangl         strappado       strappado      
+  straps          strap           stratagem       stratagem      
+  stratagems      stratagem       stratford       stratford      
+  strato          strato          straw           straw          
+  strawberries    strawberri      strawberry      strawberri     
+  straws          straw           strawy          strawi         
+  stray           strai           straying        strai          
+  strays          strai           streak          streak         
+  streaks         streak          stream          stream         
+  streamers       streamer        streaming       stream         
+  streams         stream          streching       strech         
+  street          street          streets         street         
+  strength        strength        strengthen      strengthen     
+  strengthened    strengthen      strengthless    strengthless   
+  strengths       strength        stretch         stretch        
+  stretched       stretch         stretches       stretch        
+  stretching      stretch         strew           strew          
+  strewing        strew           strewings       strew          
+  strewments      strewment       stricken        stricken       
+  strict          strict          stricter        stricter       
+  strictest       strictest       strictly        strictli       
+  stricture       strictur        stride          stride         
+  strides         stride          striding        stride         
+  strife          strife          strifes         strife         
+  strik           strik           strike          strike         
+  strikers        striker         strikes         strike         
+  strikest        strikest        striking        strike         
+  string          string          stringless      stringless     
+  strings         string          strip           strip          
+  stripes         stripe          stripling       stripl         
+  striplings      stripl          stripp          stripp         
+  stripping       strip           striv           striv          
+  strive          strive          strives         strive         
+  striving        strive          strok           strok          
+  stroke          stroke          strokes         stroke         
+  strond          strond          stronds         strond         
+  strong          strong          stronger        stronger       
+  strongest       strongest       strongly        strongli       
+  strooke         strook          strossers       strosser       
+  strove          strove          strown          strown         
+  stroy           stroi           struck          struck         
+  strucken        strucken        struggle        struggl        
+  struggles       struggl         struggling      struggl        
+  strumpet        strumpet        strumpeted      strumpet       
+  strumpets       strumpet        strung          strung         
+  strut           strut           struts          strut          
+  strutted        strut           strutting       strut          
+  stubble         stubbl          stubborn        stubborn       
+  stubbornest     stubbornest     stubbornly      stubbornli     
+  stubbornness    stubborn        stuck           stuck          
+  studded         stud            student         student        
+  students        student         studied         studi          
+  studies         studi           studious        studiou        
+  studiously      studious        studs           stud           
+  study           studi           studying        studi          
+  stuff           stuff           stuffing        stuf           
+  stuffs          stuff           stumble         stumbl         
+  stumbled        stumbl          stumblest       stumblest      
+  stumbling       stumbl          stump           stump          
+  stumps          stump           stung           stung          
+  stupefy         stupefi         stupid          stupid         
+  stupified       stupifi         stuprum         stuprum        
+  sturdy          sturdi          sty             sty            
+  styga           styga           stygian         stygian        
+  styl            styl            style           style          
+  styx            styx            su              su             
+  sub             sub             subcontracted   subcontract    
+  subdu           subdu           subdue          subdu          
+  subdued         subdu           subduements     subduement     
+  subdues         subdu           subduing        subdu          
+  subject         subject         subjected       subject        
+  subjection      subject         subjects        subject        
+  submerg         submerg         submission      submiss        
+  submissive      submiss         submit          submit         
+  submits         submit          submitting      submit         
+  suborn          suborn          subornation     suborn         
+  suborned        suborn          subscrib        subscrib       
+  subscribe       subscrib        subscribed      subscrib       
+  subscribes      subscrib        subscription    subscript      
+  subsequent      subsequ         subsidies       subsidi        
+  subsidy         subsidi         subsist         subsist        
+  subsisting      subsist         substance       substanc       
+  substances      substanc        substantial     substanti      
+  substitute      substitut       substituted     substitut      
+  substitutes     substitut       substitution    substitut      
+  subtile         subtil          subtilly        subtilli       
+  subtle          subtl           subtleties      subtleti       
+  subtlety        subtleti        subtly          subtli         
+  subtractors     subtractor      suburbs         suburb         
+  subversion      subvers         subverts        subvert        
+  succedant       succed          succeed         succe          
+  succeeded       succeed         succeeders      succeed        
+  succeeding      succeed         succeeds        succe          
+  success         success         successantly    successantli   
+  successes       success         successful      success        
+  successfully    successfulli    succession      success        
+  successive      success         successively    success        
+  successor       successor       successors      successor      
+  succour         succour         succours        succour        
+  such            such            suck            suck           
+  sucker          sucker          suckers         sucker         
+  sucking         suck            suckle          suckl          
+  sucks           suck            sudden          sudden         
+  suddenly        suddenli        sue             sue            
+  sued            su              suerly          suerli         
+  sues            sue             sueth           sueth          
+  suff            suff            suffer          suffer         
+  sufferance      suffer          sufferances     suffer         
+  suffered        suffer          suffering       suffer         
+  suffers         suffer          suffic          suffic         
+  suffice         suffic          sufficed        suffic         
+  suffices        suffic          sufficeth       sufficeth      
+  sufficiency     suffici         sufficient      suffici        
+  sufficiently    suffici         sufficing       suffic         
+  sufficit        sufficit        suffigance      suffig         
+  suffocate       suffoc          suffocating     suffoc         
+  suffocation     suffoc          suffolk         suffolk        
+  suffrage        suffrag         suffrages       suffrag        
+  sug             sug             sugar           sugar          
+  sugarsop        sugarsop        suggest         suggest        
+  suggested       suggest         suggesting      suggest        
+  suggestion      suggest         suggestions     suggest        
+  suggests        suggest         suis            sui            
+  suit            suit            suitable        suitabl        
+  suited          suit            suiting         suit           
+  suitor          suitor          suitors         suitor         
+  suits           suit            suivez          suivez         
+  sullen          sullen          sullens         sullen         
+  sullied         sulli           sullies         sulli          
+  sully           sulli           sulph           sulph          
+  sulpherous      sulpher         sulphur         sulphur        
+  sulphurous      sulphur         sultan          sultan         
+  sultry          sultri          sum             sum            
+  sumless         sumless         summ            summ           
+  summa           summa           summary         summari        
+  summer          summer          summers         summer         
+  summit          summit          summon          summon         
+  summoners       summon          summons         summon         
+  sumpter         sumpter         sumptuous       sumptuou       
+  sumptuously     sumptuous       sums            sum            
+  sun             sun             sunbeams        sunbeam        
+  sunburning      sunburn         sunburnt        sunburnt       
+  sund            sund            sunday          sundai         
+  sundays         sundai          sunder          sunder         
+  sunders         sunder          sundry          sundri         
+  sung            sung            sunk            sunk           
+  sunken          sunken          sunny           sunni          
+  sunrising       sunris          suns            sun            
+  sunset          sunset          sunshine        sunshin        
+  sup             sup             super           super          
+  superficial     superfici       superficially   superfici      
+  superfluity     superflu        superfluous     superflu       
+  superfluously   superflu        superflux       superflux      
+  superior        superior        supernal        supern         
+  supernatural    supernatur      superpraise     superprais     
+  superscript     superscript     superscription  superscript    
+  superserviceable superservic     superstition    superstit      
+  superstitious   superstiti      superstitiously superstiti     
+  supersubtle     supersubtl      supervise       supervis       
+  supervisor      supervisor      supp            supp           
+  supper          supper          suppers         supper         
+  suppertime      suppertim       supping         sup            
+  supplant        supplant        supple          suppl          
+  suppler         suppler         suppliance      supplianc      
+  suppliant       suppliant       suppliants      suppliant      
+  supplicant      supplic         supplication    supplic        
+  supplications   supplic         supplie         suppli         
+  supplied        suppli          supplies        suppli         
+  suppliest       suppliest       supply          suppli         
+  supplyant       supplyant       supplying       suppli         
+  supplyment      supplyment      support         support        
+  supportable     support         supportance     support        
+  supported       support         supporter       support        
+  supporters      support         supporting      support        
+  supportor       supportor       suppos          suppo          
+  supposal        suppos          suppose         suppos         
+  supposed        suppos          supposes        suppos         
+  supposest       supposest       supposing       suppos         
+  supposition     supposit        suppress        suppress       
+  suppressed      suppress        suppresseth     suppresseth    
+  supremacy       supremaci       supreme         suprem         
+  sups            sup             sur             sur            
+  surance         suranc          surcease        surceas        
+  surd            surd            sure            sure           
+  surecard        surecard        surely          sure           
+  surer           surer           surest          surest         
+  sureties        sureti          surety          sureti         
+  surfeit         surfeit         surfeited       surfeit        
+  surfeiter       surfeit         surfeiting      surfeit        
+  surfeits        surfeit         surge           surg           
+  surgeon         surgeon         surgeons        surgeon        
+  surgere         surger          surgery         surgeri        
+  surges          surg            surly           surli          
+  surmis          surmi           surmise         surmis         
+  surmised        surmis          surmises        surmis         
+  surmount        surmount        surmounted      surmount       
+  surmounts       surmount        surnam          surnam         
+  surname         surnam          surnamed        surnam         
+  surpasseth      surpasseth      surpassing      surpass        
+  surplice        surplic         surplus         surplu         
+  surpris         surpri          surprise        surpris        
+  surprised       surpris         surrender       surrend        
+  surrey          surrei          surreys         surrei         
+  survey          survei          surveyest       surveyest      
+  surveying       survei          surveyor        surveyor       
+  surveyors       surveyor        surveys         survei         
+  survive         surviv          survives        surviv         
+  survivor        survivor        susan           susan          
+  suspect         suspect         suspected       suspect        
+  suspecting      suspect         suspects        suspect        
+  suspend         suspend         suspense        suspens        
+  suspicion       suspicion       suspicions      suspicion      
+  suspicious      suspici         suspiration     suspir         
+  suspire         suspir          sust            sust           
+  sustain         sustain         sustaining      sustain        
+  sutler          sutler          sutton          sutton         
+  suum            suum            swabber         swabber        
+  swaddling       swaddl          swag            swag           
+  swagg           swagg           swagger         swagger        
+  swaggerer       swagger         swaggerers      swagger        
+  swaggering      swagger         swain           swain          
+  swains          swain           swallow         swallow        
+  swallowed       swallow         swallowing      swallow        
+  swallows        swallow         swam            swam           
+  swan            swan            swans           swan           
+  sward           sward           sware           sware          
+  swarm           swarm           swarming        swarm          
+  swart           swart           swarth          swarth         
+  swarths         swarth          swarthy         swarthi        
+  swashers        swasher         swashing        swash          
+  swath           swath           swathing        swath          
+  swathling       swathl          sway            swai           
+  swaying         swai            sways           swai           
+  swear           swear           swearer         swearer        
+  swearers        swearer         swearest        swearest       
+  swearing        swear           swearings       swear          
+  swears          swear           sweat           sweat          
+  sweaten         sweaten         sweating        sweat          
+  sweats          sweat           sweaty          sweati         
+  sweep           sweep           sweepers        sweeper        
+  sweeps          sweep           sweet           sweet          
+  sweeten         sweeten         sweetens        sweeten        
+  sweeter         sweeter         sweetest        sweetest       
+  sweetheart      sweetheart      sweeting        sweet          
+  sweetly         sweetli         sweetmeats      sweetmeat      
+  sweetness       sweet           sweets          sweet          
+  swell           swell           swelling        swell          
+  swellings       swell           swells          swell          
+  swelter         swelter         sweno           sweno          
+  swept           swept           swerve          swerv          
+  swerver         swerver         swerving        swerv          
+  swift           swift           swifter         swifter        
+  swiftest        swiftest        swiftly         swiftli        
+  swiftness       swift           swill           swill          
+  swills          swill           swim            swim           
+  swimmer         swimmer         swimmers        swimmer        
+  swimming        swim            swims           swim           
+  swine           swine           swineherds      swineherd      
+  swing           swing           swinge          swing          
+  swinish         swinish         swinstead       swinstead      
+  switches        switch          swits           swit           
+  switzers        switzer         swol            swol           
+  swoll           swoll           swoln           swoln          
+  swoon           swoon           swooned         swoon          
+  swooning        swoon           swoons          swoon          
+  swoop           swoop           swoopstake      swoopstak      
+  swor            swor            sword           sword          
+  sworder         sworder         swords          sword          
+  swore           swore           sworn           sworn          
+  swounded        swound          swounds         swound         
+  swum            swum            swung           swung          
+  sy              sy              sycamore        sycamor        
+  sycorax         sycorax         sylla           sylla          
+  syllable        syllabl         syllables       syllabl        
+  syllogism       syllog          symbols         symbol         
+  sympathise      sympathis       sympathiz       sympathiz      
+  sympathize      sympath         sympathized     sympath        
+  sympathy        sympathi        synagogue       synagogu       
+  synod           synod           synods          synod          
+  syracuse        syracus         syracusian      syracusian     
+  syracusians     syracusian      syria           syria          
+  syrups          syrup           t               t              
+  ta              ta              taber           taber          
+  table           tabl            tabled          tabl           
+  tables          tabl            tablet          tablet         
+  tabor           tabor           taborer         tabor          
+  tabors          tabor           tabourines      tabourin       
+  taciturnity     taciturn        tack            tack           
+  tackle          tackl           tackled         tackl          
+  tackles         tackl           tackling        tackl          
+  tacklings       tackl           taddle          taddl          
+  tadpole         tadpol          taffeta         taffeta        
+  taffety         taffeti         tag             tag            
+  tagrag          tagrag          tah             tah            
+  tail            tail            tailor          tailor         
+  tailors         tailor          tails           tail           
+  taint           taint           tainted         taint          
+  tainting        taint           taints          taint          
+  tainture        taintur         tak             tak            
+  take            take            taken           taken          
+  taker           taker           takes           take           
+  takest          takest          taketh          taketh         
+  taking          take            tal             tal            
+  talbot          talbot          talbotites      talbotit       
+  talbots         talbot          tale            tale           
+  talent          talent          talents         talent         
+  taleporter      taleport        tales           tale           
+  talk            talk            talked          talk           
+  talker          talker          talkers         talker         
+  talkest         talkest         talking         talk           
+  talks           talk            tall            tall           
+  taller          taller          tallest         tallest        
+  tallies         talli           tallow          tallow         
+  tally           talli           talons          talon          
+  tam             tam             tambourines     tambourin      
+  tame            tame            tamed           tame           
+  tamely          tame            tameness        tame           
+  tamer           tamer           tames           tame           
+  taming          tame            tamora          tamora         
+  tamworth        tamworth        tan             tan            
+  tang            tang            tangle          tangl          
+  tangled         tangl           tank            tank           
+  tanlings        tanl            tann            tann           
+  tanned          tan             tanner          tanner         
+  tanquam         tanquam         tanta           tanta          
+  tantaene        tantaen         tap             tap            
+  tape            tape            taper           taper          
+  tapers          taper           tapestries      tapestri       
+  tapestry        tapestri        taphouse        taphous        
+  tapp            tapp            tapster         tapster        
+  tapsters        tapster         tar             tar            
+  tardied         tardi           tardily         tardili        
+  tardiness       tardi           tardy           tardi          
+  tarentum        tarentum        targe           targ           
+  targes          targ            target          target         
+  targets         target          tarpeian        tarpeian       
+  tarquin         tarquin         tarquins        tarquin        
+  tarr            tarr            tarre           tarr           
+  tarriance       tarrianc        tarried         tarri          
+  tarries         tarri           tarry           tarri          
+  tarrying        tarri           tart            tart           
+  tartar          tartar          tartars         tartar         
+  tartly          tartli          tartness        tart           
+  task            task            tasker          tasker         
+  tasking         task            tasks           task           
+  tassel          tassel          taste           tast           
+  tasted          tast            tastes          tast           
+  tasting         tast            tatt            tatt           
+  tatter          tatter          tattered        tatter         
+  tatters         tatter          tattle          tattl          
+  tattling        tattl           tattlings       tattl          
+  taught          taught          taunt           taunt          
+  taunted         taunt           taunting        taunt          
+  tauntingly      tauntingli      taunts          taunt          
+  taurus          tauru           tavern          tavern         
+  taverns         tavern          tavy            tavi           
+  tawdry          tawdri          tawny           tawni          
+  tax             tax             taxation        taxat          
+  taxations       taxat           taxes           tax            
+  taxing          tax             tc              tc             
+  te              te              teach           teach          
+  teacher         teacher         teachers        teacher        
+  teaches         teach           teachest        teachest       
+  teacheth        teacheth        teaching        teach          
+  team            team            tear            tear           
+  tearful         tear            tearing         tear           
+  tears           tear            tearsheet       tearsheet      
+  teat            teat            tedious         tediou         
+  tediously       tedious         tediousness     tedious        
+  teem            teem            teeming         teem           
+  teems           teem            teen            teen           
+  teeth           teeth           teipsum         teipsum        
+  telamon         telamon         telamonius      telamoniu      
+  tell            tell            teller          teller         
+  telling         tell            tells           tell           
+  tellus          tellu           temp            temp           
+  temper          temper          temperality     temper         
+  temperance      temper          temperate       temper         
+  temperately     temper          tempers         temper         
+  tempest         tempest         tempests        tempest        
+  tempestuous     tempestu        temple          templ          
+  temples         templ           temporal        tempor         
+  temporary       temporari       temporiz        temporiz       
+  temporize       tempor          temporizer      tempor         
+  temps           temp            tempt           tempt          
+  temptation      temptat         temptations     temptat        
+  tempted         tempt           tempter         tempter        
+  tempters        tempter         tempteth        tempteth       
+  tempting        tempt           tempts          tempt          
+  ten             ten             tenable         tenabl         
+  tenant          tenant          tenantius       tenantiu       
+  tenantless      tenantless      tenants         tenant         
+  tench           tench           tend            tend           
+  tendance        tendanc         tended          tend           
+  tender          tender          tendered        tender         
+  tenderly        tenderli        tenderness      tender         
+  tenders         tender          tending         tend           
+  tends           tend            tenedos         tenedo         
+  tenement        tenement        tenements       tenement       
+  tenfold         tenfold         tennis          tenni          
+  tenour          tenour          tenours         tenour         
+  tens            ten             tent            tent           
+  tented          tent            tenth           tenth          
+  tenths          tenth           tents           tent           
+  tenure          tenur           tenures         tenur          
+  tercel          tercel          tereus          tereu          
+  term            term            termagant       termag         
+  termed          term            terminations    termin         
+  termless        termless        terms           term           
+  terra           terra           terrace         terrac         
+  terram          terram          terras          terra          
+  terre           terr            terrene         terren         
+  terrestrial     terrestri       terrible        terribl        
+  terribly        terribl         territories     territori      
+  territory       territori       terror          terror         
+  terrors         terror          tertian         tertian        
+  tertio          tertio          test            test           
+  testament       testament       tested          test           
+  tester          tester          testern         testern        
+  testify         testifi         testimonied     testimoni      
+  testimonies     testimoni       testimony       testimoni      
+  testiness       testi           testril         testril        
+  testy           testi           tetchy          tetchi         
+  tether          tether          tetter          tetter         
+  tevil           tevil           tewksbury       tewksburi      
+  text            text            tgv             tgv            
+  th              th              thaes           thae           
+  thames          thame           than            than           
+  thane           thane           thanes          thane          
+  thank           thank           thanked         thank          
+  thankful        thank           thankfully      thankfulli     
+  thankfulness    thank           thanking        thank          
+  thankings       thank           thankless       thankless      
+  thanks          thank           thanksgiving    thanksgiv      
+  thasos          thaso           that            that           
+  thatch          thatch          thaw            thaw           
+  thawing         thaw            thaws           thaw           
+  the             the             theatre         theatr         
+  theban          theban          thebes          thebe          
+  thee            thee            theft           theft          
+  thefts          theft           thein           thein          
+  their           their           theirs          their          
+  theise          theis           them            them           
+  theme           theme           themes          theme          
+  themselves      themselv        then            then           
+  thence          thenc           thenceforth     thenceforth    
+  theoric         theoric         there           there          
+  thereabout      thereabout      thereabouts     thereabout     
+  thereafter      thereaft        thereat         thereat        
+  thereby         therebi         therefore       therefor       
+  therein         therein         thereof         thereof        
+  thereon         thereon         thereto         thereto        
+  thereunto       thereunto       thereupon       thereupon      
+  therewith       therewith       therewithal     therewith      
+  thersites       thersit         these           these          
+  theseus         theseu          thessalian      thessalian     
+  thessaly        thessali        thetis          theti          
+  thews           thew            they            thei           
+  thick           thick           thicken         thicken        
+  thickens        thicken         thicker         thicker        
+  thickest        thickest        thicket         thicket        
+  thickskin       thickskin       thief           thief          
+  thievery        thieveri        thieves         thiev          
+  thievish        thievish        thigh           thigh          
+  thighs          thigh           thimble         thimbl         
+  thimbles        thimbl          thin            thin           
+  thine           thine           thing           thing          
+  things          thing           think           think          
+  thinkest        thinkest        thinking        think          
+  thinkings       think           thinks          think          
+  thinkst         thinkst         thinly          thinli         
+  third           third           thirdly         thirdli        
+  thirds          third           thirst          thirst         
+  thirsting       thirst          thirsts         thirst         
+  thirsty         thirsti         thirteen        thirteen       
+  thirties        thirti          thirtieth       thirtieth      
+  thirty          thirti          this            thi            
+  thisby          thisbi          thisne          thisn          
+  thistle         thistl          thistles        thistl         
+  thither         thither         thitherward     thitherward    
+  thoas           thoa            thomas          thoma          
+  thorn           thorn           thorns          thorn          
+  thorny          thorni          thorough        thorough       
+  thoroughly      thoroughli      those           those          
+  thou            thou            though          though         
+  thought         thought         thoughtful      thought        
+  thoughts        thought         thousand        thousand       
+  thousands       thousand        thracian        thracian       
+  thraldom        thraldom        thrall          thrall         
+  thralled        thrall          thralls         thrall         
+  thrash          thrash          thrasonical     thrason        
+  thread          thread          threadbare      threadbar      
+  threaden        threaden        threading       thread         
+  threat          threat          threaten        threaten       
+  threatening     threaten        threatens       threaten       
+  threatest       threatest       threats         threat         
+  three           three           threefold       threefold      
+  threepence      threepenc       threepile       threepil       
+  threes          three           threescore      threescor      
+  thresher        thresher        threshold       threshold      
+  threw           threw           thrice          thrice         
+  thrift          thrift          thriftless      thriftless     
+  thrifts         thrift          thrifty         thrifti        
+  thrill          thrill          thrilling       thrill         
+  thrills         thrill          thrive          thrive         
+  thrived         thrive          thrivers        thriver        
+  thrives         thrive          thriving        thrive         
+  throat          throat          throats         throat         
+  throbbing       throb           throbs          throb          
+  throca          throca          throe           throe          
+  throes          throe           thromuldo       thromuldo      
+  thron           thron           throne          throne         
+  throned         throne          thrones         throne         
+  throng          throng          thronging       throng         
+  throngs         throng          throstle        throstl        
+  throttle        throttl         through         through        
+  throughfare     throughfar      throughfares    throughfar     
+  throughly       throughli       throughout      throughout     
+  throw           throw           thrower         thrower        
+  throwest        throwest        throwing        throw          
+  thrown          thrown          throws          throw          
+  thrum           thrum           thrumm          thrumm         
+  thrush          thrush          thrust          thrust         
+  thrusteth       thrusteth       thrusting       thrust         
+  thrusts         thrust          thumb           thumb          
+  thumbs          thumb           thump           thump          
+  thund           thund           thunder         thunder        
+  thunderbolt     thunderbolt     thunderbolts    thunderbolt    
+  thunderer       thunder         thunders        thunder        
+  thunderstone    thunderston     thunderstroke   thunderstrok   
+  thurio          thurio          thursday        thursdai       
+  thus            thu             thwack          thwack         
+  thwart          thwart          thwarted        thwart         
+  thwarting       thwart          thwartings      thwart         
+  thy             thy             thyme           thyme          
+  thymus          thymu           thyreus         thyreu         
+  thyself         thyself         ti              ti             
+  tib             tib             tiber           tiber          
+  tiberio         tiberio         tibey           tibei          
+  ticed           tice            tick            tick           
+  tickl           tickl           tickle          tickl          
+  tickled         tickl           tickles         tickl          
+  tickling        tickl           ticklish        ticklish       
+  tiddle          tiddl           tide            tide           
+  tides           tide            tidings         tide           
+  tidy            tidi            tie             tie            
+  tied            ti              ties            ti             
+  tiff            tiff            tiger           tiger          
+  tigers          tiger           tight           tight          
+  tightly         tightli         tike            tike           
+  til             til             tile            tile           
+  till            till            tillage         tillag         
+  tilly           tilli           tilt            tilt           
+  tilter          tilter          tilth           tilth          
+  tilting         tilt            tilts           tilt           
+  tiltyard        tiltyard        tim             tim            
+  timandra        timandra        timber          timber         
+  time            time            timeless        timeless       
+  timelier        timeli          timely          time           
+  times           time            timon           timon          
+  timor           timor           timorous        timor          
+  timorously      timor           tinct           tinct          
+  tincture        tinctur         tinctures       tinctur        
+  tinder          tinder          tingling        tingl          
+  tinker          tinker          tinkers         tinker         
+  tinsel          tinsel          tiny            tini           
+  tip             tip             tipp            tipp           
+  tippling        tippl           tips            tip            
+  tipsy           tipsi           tiptoe          tipto          
+  tir             tir             tire            tire           
+  tired           tire            tires           tire           
+  tirest          tirest          tiring          tire           
+  tirra           tirra           tirrits         tirrit         
+  tis             ti              tish            tish           
+  tisick          tisick          tissue          tissu          
+  titan           titan           titania         titania        
+  tithe           tith            tithed          tith           
+  tithing         tith            titinius        titiniu        
+  title           titl            titled          titl           
+  titleless       titleless       titles          titl           
+  tittle          tittl           tittles         tittl          
+  titular         titular         titus           titu           
+  tn              tn              to              to             
+  toad            toad            toads           toad           
+  toadstool       toadstool       toast           toast          
+  toasted         toast           toasting        toast          
+  toasts          toast           toaze           toaz           
+  toby            tobi            tock            tock           
+  tod             tod             today           todai          
+  todpole         todpol          tods            tod            
+  toe             toe             toes            toe            
+  tofore          tofor           toge            toge           
+  toged           toge            together        togeth         
+  toil            toil            toiled          toil           
+  toiling         toil            toils           toil           
+  token           token           tokens          token          
+  told            told            toledo          toledo         
+  tolerable       toler           toll            toll           
+  tolling         toll            tom             tom            
+  tomb            tomb            tombe           tomb           
+  tombed          tomb            tombless        tombless       
+  tomboys         tomboi          tombs           tomb           
+  tomorrow        tomorrow        tomyris         tomyri         
+  ton             ton             tongs           tong           
+  tongu           tongu           tongue          tongu          
+  tongued         tongu           tongueless      tongueless     
+  tongues         tongu           tonight         tonight        
+  too             too             took            took           
+  tool            tool            tools           tool           
+  tooth           tooth           toothache       toothach       
+  toothpick       toothpick       toothpicker     toothpick      
+  top             top             topas           topa           
+  topful          top             topgallant      topgal         
+  topless         topless         topmast         topmast        
+  topp            topp            topping         top            
+  topple          toppl           topples         toppl          
+  tops            top             topsail         topsail        
+  topsy           topsi           torch           torch          
+  torchbearer     torchbear       torchbearers    torchbear      
+  torcher         torcher         torches         torch          
+  torchlight      torchlight      tore            tore           
+  torment         torment         tormenta        tormenta       
+  tormente        torment         tormented       torment        
+  tormenting      torment         tormentors      tormentor      
+  torments        torment         torn            torn           
+  torrent         torrent         tortive         tortiv         
+  tortoise        tortois         tortur          tortur         
+  torture         tortur          tortured        tortur         
+  torturer        tortur          torturers       tortur         
+  tortures        tortur          torturest       torturest      
+  torturing       tortur          toryne          toryn          
+  toss            toss            tossed          toss           
+  tosseth         tosseth         tossing         toss           
+  tot             tot             total           total          
+  totally         total           tott            tott           
+  tottered        totter          totters         totter         
+  tou             tou             touch           touch          
+  touched         touch           touches         touch          
+  toucheth        toucheth        touching        touch          
+  touchstone      touchston       tough           tough          
+  tougher         tougher         toughness       tough          
+  touraine        tourain         tournaments     tournament     
+  tours           tour            tous            tou            
+  tout            tout            touze           touz           
+  tow             tow             toward          toward         
+  towardly        towardli        towards         toward         
+  tower           tower           towering        tower          
+  towers          tower           town            town           
+  towns           town            township        township       
+  townsman        townsman        townsmen        townsmen       
+  towton          towton          toy             toi            
+  toys            toi             trace           trace          
+  traces          trace           track           track          
+  tract           tract           tractable       tractabl       
+  trade           trade           traded          trade          
+  traders         trader          trades          trade          
+  tradesman       tradesman       tradesmen       tradesmen      
+  trading         trade           tradition       tradit         
+  traditional     tradit          traduc          traduc         
+  traduced        traduc          traducement     traduc         
+  traffic         traffic         traffickers     traffick       
+  traffics        traffic         tragedian       tragedian      
+  tragedians      tragedian       tragedies       tragedi        
+  tragedy         tragedi         tragic          tragic         
+  tragical        tragic          trail           trail          
+  train           train           trained         train          
+  training        train           trains          train          
+  trait           trait           traitor         traitor        
+  traitorly       traitorli       traitorous      traitor        
+  traitorously    traitor         traitors        traitor        
+  traitress       traitress       traject         traject        
+  trammel         trammel         trample         trampl         
+  trampled        trampl          trampling       trampl         
+  tranc           tranc           trance          tranc          
+  tranio          tranio          tranquil        tranquil       
+  tranquillity    tranquil        transcendence   transcend      
+  transcends      transcend       transferred     transfer       
+  transfigur      transfigur      transfix        transfix       
+  transform       transform       transformation  transform      
+  transformations transform       transformed     transform      
+  transgress      transgress      transgresses    transgress     
+  transgressing   transgress      transgression   transgress     
+  translate       translat        translated      translat       
+  translates      translat        translation     translat       
+  transmigrates   transmigr       transmutation   transmut       
+  transparent     transpar        transport       transport      
+  transportance   transport       transported     transport      
+  transporting    transport       transports      transport      
+  transpose       transpos        transshape      transshap      
+  trap            trap            trapp           trapp          
+  trappings       trap            traps           trap           
+  trash           trash           travail         travail        
+  travails        travail         travel          travel         
+  traveler        travel          traveling       travel         
+  travell         travel          travelled       travel         
+  traveller       travel          travellers      travel         
+  travellest      travellest      travelling      travel         
+  travels         travel          travers         traver         
+  traverse        travers         tray            trai           
+  treacherous     treacher        treacherously   treacher       
+  treachers       treacher        treachery       treacheri      
+  tread           tread           treading        tread          
+  treads          tread           treason         treason        
+  treasonable     treason         treasonous      treason        
+  treasons        treason         treasure        treasur        
+  treasurer       treasur         treasures       treasur        
+  treasuries      treasuri        treasury        treasuri       
+  treat           treat           treaties        treati         
+  treatise        treatis         treats          treat          
+  treaty          treati          treble          trebl          
+  trebled         trebl           trebles         trebl          
+  trebonius       treboniu        tree            tree           
+  trees           tree            tremble         trembl         
+  trembled        trembl          trembles        trembl         
+  tremblest       tremblest       trembling       trembl         
+  tremblingly     tremblingli     tremor          tremor         
+  trempling       trempl          trench          trench         
+  trenchant       trenchant       trenched        trench         
+  trencher        trencher        trenchering     trencher       
+  trencherman     trencherman     trenchers       trencher       
+  trenches        trench          trenching       trench         
+  trent           trent           tres            tre            
+  trespass        trespass        trespasses      trespass       
+  tressel         tressel         tresses         tress          
+  treys           trei            trial           trial          
+  trials          trial           trib            trib           
+  tribe           tribe           tribes          tribe          
+  tribulation     tribul          tribunal        tribun         
+  tribune         tribun          tribunes        tribun         
+  tributaries     tributari       tributary       tributari      
+  tribute         tribut          tributes        tribut         
+  trice           trice           trick           trick          
+  tricking        trick           trickling       trickl         
+  tricks          trick           tricksy         tricksi        
+  trident         trident         tried           tri            
+  trier           trier           trifle          trifl          
+  trifled         trifl           trifler         trifler        
+  trifles         trifl           trifling        trifl          
+  trigon          trigon          trill           trill          
+  trim            trim            trimly          trimli         
+  trimm           trimm           trimmed         trim           
+  trimming        trim            trims           trim           
+  trinculo        trinculo        trinculos       trinculo       
+  trinkets        trinket         trip            trip           
+  tripartite      tripartit       tripe           tripe          
+  triple          tripl           triplex         triplex        
+  tripoli         tripoli         tripolis        tripoli        
+  tripp           tripp           tripping        trip           
+  trippingly      trippingli      trips           trip           
+  tristful        trist           triton          triton         
+  triumph         triumph         triumphant      triumphant     
+  triumphantly    triumphantli    triumpher       triumpher      
+  triumphers      triumpher       triumphing      triumph        
+  triumphs        triumph         triumvir        triumvir       
+  triumvirate     triumvir        triumvirs       triumvir       
+  triumviry       triumviri       trivial         trivial        
+  troat           troat           trod            trod           
+  trodden         trodden         troiant         troiant        
+  troien          troien          troilus         troilu         
+  troiluses       troilus         trojan          trojan         
+  trojans         trojan          troll           troll          
+  tromperies      tromperi        trompet         trompet        
+  troop           troop           trooping        troop          
+  troops          troop           trop            trop           
+  trophies        trophi          trophy          trophi         
+  tropically      tropic          trot            trot           
+  troth           troth           trothed         troth          
+  troths          troth           trots           trot           
+  trotting        trot            trouble         troubl         
+  troubled        troubl          troubler        troubler       
+  troubles        troubl          troublesome     troublesom     
+  troublest       troublest       troublous       troublou       
+  trough          trough          trout           trout          
+  trouts          trout           trovato         trovato        
+  trow            trow            trowel          trowel         
+  trowest         trowest         troy            troi           
+  troyan          troyan          troyans         troyan         
+  truant          truant          truce           truce          
+  truckle         truckl          trudge          trudg          
+  true            true            trueborn        trueborn       
+  truepenny       truepenni       truer           truer          
+  truest          truest          truie           truie          
+  trull           trull           trulls          trull          
+  truly           truli           trump           trump          
+  trumpery        trumperi        trumpet         trumpet        
+  trumpeter       trumpet         trumpeters      trumpet        
+  trumpets        trumpet         truncheon       truncheon      
+  truncheoners    truncheon       trundle         trundl         
+  trunk           trunk           trunks          trunk          
+  trust           trust           trusted         trust          
+  truster         truster         trusters        truster        
+  trusting        trust           trusts          trust          
+  trusty          trusti          truth           truth          
+  truths          truth           try             try            
+  ts              ts              tu              tu             
+  tuae            tuae            tub             tub            
+  tubal           tubal           tubs            tub            
+  tuck            tuck            tucket          tucket         
+  tuesday         tuesdai         tuft            tuft           
+  tufts           tuft            tug             tug            
+  tugg            tugg            tugging         tug            
+  tuition         tuition         tullus          tullu          
+  tully           tulli           tumble          tumbl          
+  tumbled         tumbl           tumbler         tumbler        
+  tumbling        tumbl           tumult          tumult         
+  tumultuous      tumultu         tun             tun            
+  tune            tune            tuneable        tuneabl        
+  tuned           tune            tuners          tuner          
+  tunes           tune            tunis           tuni           
+  tuns            tun             tupping         tup            
+  turban          turban          turbans         turban         
+  turbulence      turbul          turbulent       turbul         
+  turd            turd            turf            turf           
+  turfy           turfi           turk            turk           
+  turkey          turkei          turkeys         turkei         
+  turkish         turkish         turks           turk           
+  turlygod        turlygod        turmoil         turmoil        
+  turmoiled       turmoil         turn            turn           
+  turnbull        turnbul         turncoat        turncoat       
+  turncoats       turncoat        turned          turn           
+  turneth         turneth         turning         turn           
+  turnips         turnip          turns           turn           
+  turph           turph           turpitude       turpitud       
+  turquoise       turquois        turret          turret         
+  turrets         turret          turtle          turtl          
+  turtles         turtl           turvy           turvi          
+  tuscan          tuscan          tush            tush           
+  tut             tut             tutor           tutor          
+  tutored         tutor           tutors          tutor          
+  tutto           tutto           twain           twain          
+  twang           twang           twangling       twangl         
+  twas            twa             tway            twai           
+  tweaks          tweak           tween           tween          
+  twelfth         twelfth         twelve          twelv          
+  twelvemonth     twelvemonth     twentieth       twentieth      
+  twenty          twenti          twere           twere          
+  twice           twice           twig            twig           
+  twiggen         twiggen         twigs           twig           
+  twilight        twilight        twill           twill          
+  twilled         twill           twin            twin           
+  twine           twine           twink           twink          
+  twinkle         twinkl          twinkled        twinkl         
+  twinkling       twinkl          twinn           twinn          
+  twins           twin            twire           twire          
+  twist           twist           twisted         twist          
+  twit            twit            twits           twit           
+  twitting        twit            twixt           twixt          
+  two             two             twofold         twofold        
+  twopence        twopenc         twopences       twopenc        
+  twos            two             twould          twould         
+  tyb             tyb             tybalt          tybalt         
+  tybalts         tybalt          tyburn          tyburn         
+  tying           ty              tyke            tyke           
+  tymbria         tymbria         type            type           
+  types           type            typhon          typhon         
+  tyrannical      tyrann          tyrannically    tyrann         
+  tyrannize       tyrann          tyrannous       tyrann         
+  tyranny         tyranni         tyrant          tyrant         
+  tyrants         tyrant          tyrian          tyrian         
+  tyrrel          tyrrel          u               u              
+  ubique          ubiqu           udders          udder          
+  udge            udg             uds             ud             
+  uglier          uglier          ugliest         ugliest        
+  ugly            ugli            ulcer           ulcer          
+  ulcerous        ulcer           ulysses         ulyss          
+  um              um              umber           umber          
+  umbra           umbra           umbrage         umbrag         
+  umfrevile       umfrevil        umpire          umpir          
+  umpires         umpir           un              un             
+  unable          unabl           unaccommodated  unaccommod     
+  unaccompanied   unaccompani     unaccustom      unaccustom     
+  unaching        unach           unacquainted    unacquaint     
+  unactive        unact           unadvis         unadvi         
+  unadvised       unadvis         unadvisedly     unadvisedli    
+  unagreeable     unagre          unanel          unanel         
+  unanswer        unansw          unappeas        unappea        
+  unapproved      unapprov        unapt           unapt          
+  unaptness       unapt           unarm           unarm          
+  unarmed         unarm           unarms          unarm          
+  unassail        unassail        unassailable    unassail       
+  unattainted     unattaint       unattempted     unattempt      
+  unattended      unattend        unauspicious    unauspici      
+  unauthorized    unauthor        unavoided       unavoid        
+  unawares        unawar          unback          unback         
+  unbak           unbak           unbanded        unband         
+  unbar           unbar           unbarb          unbarb         
+  unbashful       unbash          unbated         unbat          
+  unbatter        unbatt          unbecoming      unbecom        
+  unbefitting     unbefit         unbegot         unbegot        
+  unbegotten      unbegotten      unbelieved      unbeliev       
+  unbend          unbend          unbent          unbent         
+  unbewail        unbewail        unbid           unbid          
+  unbidden        unbidden        unbind          unbind         
+  unbinds         unbind          unbitted        unbit          
+  unbless         unbless         unblest         unblest        
+  unbloodied      unbloodi        unblown         unblown        
+  unbodied        unbodi          unbolt          unbolt         
+  unbolted        unbolt          unbonneted      unbonnet       
+  unbookish       unbookish       unborn          unborn         
+  unbosom         unbosom         unbound         unbound        
+  unbounded       unbound         unbow           unbow          
+  unbowed         unbow           unbrac          unbrac         
+  unbraced        unbrac          unbraided       unbraid        
+  unbreathed      unbreath        unbred          unbr           
+  unbreech        unbreech        unbridled       unbridl        
+  unbroke         unbrok          unbruis         unbrui         
+  unbruised       unbruis         unbuckle        unbuckl        
+  unbuckles       unbuckl         unbuckling      unbuckl        
+  unbuild         unbuild         unburden        unburden       
+  unburdens       unburden        unburied        unburi         
+  unburnt         unburnt         unburthen       unburthen      
+  unbutton        unbutton        unbuttoning     unbutton       
+  uncapable       uncap           uncape          uncap          
+  uncase          uncas           uncasing        uncas          
+  uncaught        uncaught        uncertain       uncertain      
+  uncertainty     uncertainti     unchain         unchain        
+  unchanging      unchang         uncharge        uncharg        
+  uncharged       uncharg         uncharitably    uncharit       
+  unchary         unchari         unchaste        unchast        
+  uncheck         uncheck         unchilded       unchild        
+  uncivil         uncivil         unclaim         unclaim        
+  unclasp         unclasp         uncle           uncl           
+  unclean         unclean         uncleanliness   uncleanli      
+  uncleanly       uncleanli       uncleanness     unclean        
+  uncles          uncl            unclew          unclew         
+  unclog          unclog          uncoined        uncoin         
+  uncolted        uncolt          uncomeliness    uncomeli       
+  uncomfortable   uncomfort       uncompassionate uncompassion   
+  uncomprehensive uncomprehens    unconfinable    unconfin       
+  unconfirm       unconfirm       unconfirmed     unconfirm      
+  unconquer       unconqu         unconquered     unconqu        
+  unconsidered    unconsid        unconstant      unconst        
+  unconstrain     unconstrain     unconstrained   unconstrain    
+  uncontemn       uncontemn       uncontroll      uncontrol      
+  uncorrected     uncorrect       uncounted       uncount        
+  uncouple        uncoupl         uncourteous     uncourt        
+  uncouth         uncouth         uncover         uncov          
+  uncovered       uncov           uncropped       uncrop         
+  uncross         uncross         uncrown         uncrown        
+  unction         unction         unctuous        unctuou        
+  uncuckolded     uncuckold       uncurable       uncur          
+  uncurbable      uncurb          uncurbed        uncurb         
+  uncurls         uncurl          uncurrent       uncurr         
+  uncurse         uncurs          undaunted       undaunt        
+  undeaf          undeaf          undeck          undeck         
+  undeeded        undeed          under           under          
+  underbearing    underbear       underborne      underborn      
+  undercrest      undercrest      underfoot       underfoot      
+  undergo         undergo         undergoes       undergo        
+  undergoing      undergo         undergone       undergon       
+  underground     underground     underhand       underhand      
+  underlings      underl          undermine       undermin       
+  underminers     undermin        underneath      underneath     
+  underprizing    underpr         underprop       underprop      
+  understand      understand      understandeth   understandeth  
+  understanding   understand      understandings  understand     
+  understands     understand      understood      understood     
+  underta         underta         undertake       undertak       
+  undertakeing    undertak        undertaker      undertak       
+  undertakes      undertak        undertaking     undertak       
+  undertakings    undertak        undertook       undertook      
+  undervalu       undervalu       undervalued     undervalu      
+  underwent       underw          underwrit       underwrit      
+  underwrite      underwrit       undescried      undescri       
+  undeserved      undeserv        undeserver      undeserv       
+  undeservers     undeserv        undeserving     undeserv       
+  undetermin      undetermin      undid           undid          
+  undinted        undint          undiscernible   undiscern      
+  undiscover      undiscov        undishonoured   undishonour    
+  undispos        undispo         undistinguishable undistinguish  
+  undistinguished undistinguish   undividable     undivid        
+  undivided       undivid         undivulged      undivulg       
+  undo            undo            undoes          undo           
+  undoing         undo            undone          undon          
+  undoubted       undoubt         undoubtedly     undoubtedli    
+  undream         undream         undress         undress        
+  undressed       undress         undrown         undrown        
+  unduteous       undut           undutiful       unduti         
+  une             un              uneared         unear          
+  unearned        unearn          unearthly       unearthli      
+  uneasines       uneasin         uneasy          uneasi         
+  uneath          uneath          uneducated      uneduc         
+  uneffectual     uneffectu       unelected       unelect        
+  unequal         unequ           uneven          uneven         
+  unexamin        unexamin        unexecuted      unexecut       
+  unexpected      unexpect        unexperienc     unexperienc    
+  unexperient     unexperi        unexpressive    unexpress      
+  unfair          unfair          unfaithful      unfaith        
+  unfallible      unfal           unfam           unfam          
+  unfashionable   unfashion       unfasten        unfasten       
+  unfather        unfath          unfathered      unfath         
+  unfed           unf             unfeed          unfe           
+  unfeeling       unfeel          unfeigned       unfeign        
+  unfeignedly     unfeignedli     unfellowed      unfellow       
+  unfelt          unfelt          unfenced        unfenc         
+  unfilial        unfili          unfill          unfil          
+  unfinish        unfinish        unfirm          unfirm         
+  unfit           unfit           unfitness       unfit          
+  unfix           unfix           unfledg         unfledg        
+  unfold          unfold          unfolded        unfold         
+  unfoldeth       unfoldeth       unfolding       unfold         
+  unfolds         unfold          unfool          unfool         
+  unforc          unforc          unforced        unforc         
+  unforfeited     unforfeit       unfortified     unfortifi      
+  unfortunate     unfortun        unfought        unfought       
+  unfrequented    unfrequ         unfriended      unfriend       
+  unfurnish       unfurnish       ungain          ungain         
+  ungalled        ungal           ungart          ungart         
+  ungarter        ungart          ungenitur       ungenitur      
+  ungentle        ungentl         ungentleness    ungentl        
+  ungently        ungent          ungird          ungird         
+  ungodly         ungodli         ungor           ungor          
+  ungot           ungot           ungotten        ungotten       
+  ungovern        ungovern        ungracious      ungraci        
+  ungrateful      ungrat          ungravely       ungrav         
+  ungrown         ungrown         unguarded       unguard        
+  unguem          unguem          unguided        unguid         
+  unhack          unhack          unhair          unhair         
+  unhallow        unhallow        unhallowed      unhallow       
+  unhand          unhand          unhandled       unhandl        
+  unhandsome      unhandsom       unhang          unhang         
+  unhappied       unhappi         unhappily       unhappili      
+  unhappiness     unhappi         unhappy         unhappi        
+  unhardened      unharden        unharm          unharm         
+  unhatch         unhatch         unheard         unheard        
+  unhearts        unheart         unheedful       unheed         
+  unheedfully     unheedfulli     unheedy         unheedi        
+  unhelpful       unhelp          unhidden        unhidden       
+  unholy          unholi          unhop           unhop          
+  unhopefullest   unhopefullest   unhorse         unhors         
+  unhospitable    unhospit        unhous          unhou          
+  unhoused        unhous          unhurtful       unhurt         
+  unicorn         unicorn         unicorns        unicorn        
+  unimproved      unimprov        uninhabitable   uninhabit      
+  uninhabited     uninhabit       unintelligent   unintellig     
+  union           union           unions          union          
+  unite           unit            united          unit           
+  unity           uniti           universal       univers        
+  universe        univers         universities    univers        
+  university      univers         unjointed       unjoint        
+  unjust          unjust          unjustice       unjustic       
+  unjustly        unjustli        unkennel        unkennel       
+  unkept          unkept          unkind          unkind         
+  unkindest       unkindest       unkindly        unkindli       
+  unkindness      unkind          unking          unk            
+  unkinglike      unkinglik       unkiss          unkiss         
+  unknit          unknit          unknowing       unknow         
+  unknown         unknown         unlace          unlac          
+  unlaid          unlaid          unlawful        unlaw          
+  unlawfully      unlawfulli      unlearn         unlearn        
+  unlearned       unlearn         unless          unless         
+  unlesson        unlesson        unletter        unlett         
+  unlettered      unlett          unlick          unlick         
+  unlike          unlik           unlikely        unlik          
+  unlimited       unlimit         unlineal        unlin          
+  unlink          unlink          unload          unload         
+  unloaded        unload          unloading       unload         
+  unloads         unload          unlock          unlock         
+  unlocks         unlock          unlook          unlook         
+  unlooked        unlook          unloos          unloo          
+  unloose         unloos          unlov           unlov          
+  unloving        unlov           unluckily       unluckili      
+  unlucky         unlucki         unmade          unmad          
+  unmake          unmak           unmanly         unmanli        
+  unmann          unmann          unmanner        unmann         
+  unmannerd       unmannerd       unmannerly      unmannerli     
+  unmarried       unmarri         unmask          unmask         
+  unmasked        unmask          unmasking       unmask         
+  unmasks         unmask          unmast          unmast         
+  unmatch         unmatch         unmatchable     unmatch        
+  unmatched       unmatch         unmeasurable    unmeasur       
+  unmeet          unmeet          unmellowed      unmellow       
+  unmerciful      unmerci         unmeritable     unmerit        
+  unmeriting      unmerit         unminded        unmind         
+  unmindfull      unmindful       unmingled       unmingl        
+  unmitigable     unmitig         unmitigated     unmitig        
+  unmix           unmix           unmoan          unmoan         
+  unmov           unmov           unmoved         unmov          
+  unmoving        unmov           unmuffles       unmuffl        
+  unmuffling      unmuffl         unmusical       unmus          
+  unmuzzle        unmuzzl         unmuzzled       unmuzzl        
+  unnatural       unnatur         unnaturally     unnatur        
+  unnaturalness   unnatur         unnecessarily   unnecessarili  
+  unnecessary     unnecessari     unneighbourly   unneighbourli  
+  unnerved        unnerv          unnoble         unnobl         
+  unnoted         unnot           unnumb          unnumb         
+  unnumber        unnumb          unowed          unow           
+  unpack          unpack          unpaid          unpaid         
+  unparagon       unparagon       unparallel      unparallel     
+  unpartial       unparti         unpath          unpath         
+  unpaved         unpav           unpay           unpai          
+  unpeaceable     unpeac          unpeg           unpeg          
+  unpeople        unpeopl         unpeopled       unpeopl        
+  unperfect       unperfect       unperfectness   unperfect      
+  unpick          unpick          unpin           unpin          
+  unpink          unpink          unpitied        unpiti         
+  unpitifully     unpitifulli     unplagu         unplagu        
+  unplausive      unplaus         unpleas         unplea         
+  unpleasant      unpleas         unpleasing      unpleas        
+  unpolicied      unpolici        unpolish        unpolish       
+  unpolished      unpolish        unpolluted      unpollut       
+  unpossess       unpossess       unpossessing    unpossess      
+  unpossible      unposs          unpractis       unpracti       
+  unpregnant      unpregn         unpremeditated  unpremedit     
+  unprepar        unprepar        unprepared      unprepar       
+  unpress         unpress         unprevailing    unprevail      
+  unprevented     unprev          unpriz          unpriz         
+  unprizable      unpriz          unprofitable    unprofit       
+  unprofited      unprofit        unproper        unprop         
+  unproperly      unproperli      unproportion    unproport      
+  unprovide       unprovid        unprovided      unprovid       
+  unprovident     unprovid        unprovokes      unprovok       
+  unprun          unprun          unpruned        unprun         
+  unpublish       unpublish       unpurged        unpurg         
+  unpurpos        unpurpo         unqualitied     unqual         
+  unqueen         unqueen         unquestion      unquest        
+  unquestionable  unquestion      unquiet         unquiet        
+  unquietly       unquietli       unquietness     unquiet        
+  unraised        unrais          unrak           unrak          
+  unread          unread          unready         unreadi        
+  unreal          unreal          unreasonable    unreason       
+  unreasonably    unreason        unreclaimed     unreclaim      
+  unreconciled    unreconcil      unreconciliable unreconcili    
+  unrecounted     unrecount       unrecuring      unrecur        
+  unregarded      unregard        unregist        unregist       
+  unrelenting     unrel           unremovable     unremov        
+  unremovably     unremov         unreprievable   unrepriev      
+  unresolv        unresolv        unrespected     unrespect      
+  unrespective    unrespect       unrest          unrest         
+  unrestor        unrestor        unrestrained    unrestrain     
+  unreveng        unreveng        unreverend      unreverend     
+  unreverent      unrever         unrevers        unrev          
+  unrewarded      unreward        unrighteous     unright        
+  unrightful      unright         unripe          unrip          
+  unripp          unripp          unrivall        unrival        
+  unroll          unrol           unroof          unroof         
+  unroosted       unroost         unroot          unroot         
+  unrough         unrough         unruly          unruli         
+  unsafe          unsaf           unsaluted       unsalut        
+  unsanctified    unsanctifi      unsatisfied     unsatisfi      
+  unsavoury       unsavouri       unsay           unsai          
+  unscalable      unscal          unscann         unscann        
+  unscarr         unscarr         unschool        unschool       
+  unscorch        unscorch        unscour         unscour        
+  unscratch       unscratch       unseal          unseal         
+  unseam          unseam          unsearch        unsearch       
+  unseason        unseason        unseasonable    unseason       
+  unseasonably    unseason        unseasoned      unseason       
+  unseconded      unsecond        unsecret        unsecret       
+  unseduc         unseduc         unseeing        unse           
+  unseeming       unseem          unseemly        unseemli       
+  unseen          unseen          unseminar       unseminar      
+  unseparable     unsepar         unserviceable   unservic       
+  unset           unset           unsettle        unsettl        
+  unsettled       unsettl         unsever         unsev          
+  unsex           unsex           unshak          unshak         
+  unshaked        unshak          unshaken        unshaken       
+  unshaped        unshap          unshapes        unshap         
+  unsheath        unsheath        unsheathe       unsheath       
+  unshorn         unshorn         unshout         unshout        
+  unshown         unshown         unshrinking     unshrink       
+  unshrubb        unshrubb        unshunn         unshunn        
+  unshunnable     unshunn         unsifted        unsift         
+  unsightly       unsightli       unsinew         unsinew        
+  unsisting       unsist          unskilful       unskil         
+  unskilfully     unskilfulli     unskillful      unskil         
+  unslipping      unslip          unsmirched      unsmirch       
+  unsoil          unsoil          unsolicited     unsolicit      
+  unsorted        unsort          unsought        unsought       
+  unsound         unsound         unsounded       unsound        
+  unspeak         unspeak         unspeakable     unspeak        
+  unspeaking      unspeak         unsphere        unspher        
+  unspoke         unspok          unspoken        unspoken       
+  unspotted       unspot          unsquar         unsquar        
+  unstable        unstabl         unstaid         unstaid        
+  unstain         unstain         unstained       unstain        
+  unstanched      unstanch        unstate         unstat         
+  unsteadfast     unsteadfast     unstooping      unstoop        
+  unstringed      unstring        unstuff         unstuff        
+  unsubstantial   unsubstanti     unsuitable      unsuit         
+  unsuiting       unsuit          unsullied       unsulli        
+  unsunn          unsunn          unsur           unsur          
+  unsure          unsur           unsuspected     unsuspect      
+  unsway          unswai          unswayable      unsway         
+  unswayed        unswai          unswear         unswear        
+  unswept         unswept         unsworn         unsworn        
+  untainted       untaint         untalk          untalk         
+  untangle        untangl         untangled       untangl        
+  untasted        untast          untaught        untaught       
+  untempering     untemp          untender        untend         
+  untent          untent          untented        untent         
+  unthankful      unthank         unthankfulness  unthank        
+  unthink         unthink         unthought       unthought      
+  unthread        unthread        unthrift        unthrift       
+  unthrifts       unthrift        unthrifty       unthrifti      
+  untie           unti            untied          unti           
+  until           until           untimber        untimb         
+  untimely        untim           untir           untir          
+  untirable       untir           untired         untir          
+  untitled        untitl          unto            unto           
+  untold          untold          untouch         untouch        
+  untoward        untoward        untowardly      untowardli     
+  untraded        untrad          untrain         untrain        
+  untrained       untrain         untread         untread        
+  untreasur       untreasur       untried         untri          
+  untrimmed       untrim          untrod          untrod         
+  untrodden       untrodden       untroubled      untroubl       
+  untrue          untru           untrussing      untruss        
+  untruth         untruth         untruths        untruth        
+  untucked        untuck          untun           untun          
+  untune          untun           untuneable      untun          
+  untutor         untutor         untutored       untutor        
+  untwine         untwin          unurg           unurg          
+  unus            unu             unused          unus           
+  unusual         unusu           unvalued        unvalu         
+  unvanquish      unvanquish      unvarnish       unvarnish      
+  unveil          unveil          unveiling       unveil         
+  unvenerable     unvener         unvex           unvex          
+  unviolated      unviol          unvirtuous      unvirtu        
+  unvisited       unvisit         unvulnerable    unvulner       
+  unwares         unwar           unwarily        unwarili       
+  unwash          unwash          unwatch         unwatch        
+  unwearied       unweari         unwed           unw            
+  unwedgeable     unwedg          unweeded        unweed         
+  unweighed       unweigh         unweighing      unweigh        
+  unwelcome       unwelcom        unwept          unwept         
+  unwhipp         unwhipp         unwholesome     unwholesom     
+  unwieldy        unwieldi        unwilling       unwil          
+  unwillingly     unwillingli     unwillingness   unwilling      
+  unwind          unwind          unwiped         unwip          
+  unwise          unwis           unwisely        unwis          
+  unwish          unwish          unwished        unwish         
+  unwitted        unwit           unwittingly     unwittingli    
+  unwonted        unwont          unwooed         unwoo          
+  unworthier      unworthi        unworthiest     unworthiest    
+  unworthily      unworthili      unworthiness    unworthi       
+  unworthy        unworthi        unwrung         unwrung        
+  unyok           unyok           unyoke          unyok          
+  up              up              upbraid         upbraid        
+  upbraided       upbraid         upbraidings     upbraid        
+  upbraids        upbraid         uphoarded       uphoard        
+  uphold          uphold          upholdeth       upholdeth      
+  upholding       uphold          upholds         uphold         
+  uplift          uplift          uplifted        uplift         
+  upmost          upmost          upon            upon           
+  upper           upper           uprear          uprear         
+  upreared        uprear          upright         upright        
+  uprighteously   upright         uprightness     upright        
+  uprise          upris           uprising        upris          
+  uproar          uproar          uproars         uproar         
+  uprous          uprou           upshoot         upshoot        
+  upshot          upshot          upside          upsid          
+  upspring        upspr           upstairs        upstair        
+  upstart         upstart         upturned        upturn         
+  upward          upward          upwards         upward         
+  urchin          urchin          urchinfield     urchinfield    
+  urchins         urchin          urg             urg            
+  urge            urg             urged           urg            
+  urgent          urgent          urges           urg            
+  urgest          urgest          urging          urg            
+  urinal          urin            urinals         urin           
+  urine           urin            urn             urn            
+  urns            urn             urs             ur             
+  ursa            ursa            ursley          urslei         
+  ursula          ursula          urswick         urswick        
+  us              us              usage           usag           
+  usance          usanc           usances         usanc          
+  use             us              used            us             
+  useful          us              useless         useless        
+  user            user            uses            us             
+  usest           usest           useth           useth          
+  usher           usher           ushered         usher          
+  ushering        usher           ushers          usher          
+  using           us              usual           usual          
+  usually         usual           usurer          usur           
+  usurers         usur            usuries         usuri          
+  usuring         usur            usurp           usurp          
+  usurpation      usurp           usurped         usurp          
+  usurper         usurp           usurpers        usurp          
+  usurping        usurp           usurpingly      usurpingli     
+  usurps          usurp           usury           usuri          
+  ut              ut              utensil         utensil        
+  utensils        utensil         utility         util           
+  utmost          utmost          utt             utt            
+  utter           utter           utterance       utter          
+  uttered         utter           uttereth        uttereth       
+  uttering        utter           utterly         utterli        
+  uttermost       uttermost       utters          utter          
+  uy              uy              v               v              
+  va              va              vacancy         vacanc         
+  vacant          vacant          vacation        vacat          
+  vade            vade            vagabond        vagabond       
+  vagabonds       vagabond        vagram          vagram         
+  vagrom          vagrom          vail            vail           
+  vailed          vail            vailing         vail           
+  vaillant        vaillant        vain            vain           
+  vainer          vainer          vainglory       vainglori      
+  vainly          vainli          vainness        vain           
+  vais            vai             valanc          valanc         
+  valance         valanc          vale            vale           
+  valence         valenc          valentine       valentin       
+  valentinus      valentinu       valentio        valentio       
+  valeria         valeria         valerius        valeriu        
+  vales           vale            valiant         valiant        
+  valiantly       valiantli       valiantness     valiant        
+  validity        valid           vallant         vallant        
+  valley          vallei          valleys         vallei         
+  vally           valli           valor           valor          
+  valorous        valor           valorously      valor          
+  valour          valour          valu            valu           
+  valuation       valuat          value           valu           
+  valued          valu            valueless       valueless      
+  values          valu            valuing         valu           
+  vane            vane            vanish          vanish         
+  vanished        vanish          vanishes        vanish         
+  vanishest       vanishest       vanishing       vanish         
+  vanities        vaniti          vanity          vaniti         
+  vanquish        vanquish        vanquished      vanquish       
+  vanquisher      vanquish        vanquishest     vanquishest    
+  vanquisheth     vanquisheth     vant            vant           
+  vantage         vantag          vantages        vantag         
+  vantbrace       vantbrac        vapians         vapian         
+  vapor           vapor           vaporous        vapor          
+  vapour          vapour          vapours         vapour         
+  vara            vara            variable        variabl        
+  variance        varianc         variation       variat         
+  variations      variat          varied          vari           
+  variest         variest         variety         varieti        
+  varld           varld           varlet          varlet         
+  varletry        varletri        varlets         varlet         
+  varletto        varletto        varnish         varnish        
+  varrius         varriu          varro           varro          
+  vary            vari            varying         vari           
+  vassal          vassal          vassalage       vassalag       
+  vassals         vassal          vast            vast           
+  vastidity       vastid          vasty           vasti          
+  vat             vat             vater           vater          
+  vaudemont       vaudemont       vaughan         vaughan        
+  vault           vault           vaultages       vaultag        
+  vaulted         vault           vaulting        vault          
+  vaults          vault           vaulty          vaulti         
+  vaumond         vaumond         vaunt           vaunt          
+  vaunted         vaunt           vaunter         vaunter        
+  vaunting        vaunt           vauntingly      vauntingli     
+  vaunts          vaunt           vauvado         vauvado        
+  vaux            vaux            vaward          vaward         
+  ve              ve              veal            veal           
+  vede            vede            vehemence       vehem          
+  vehemency       vehem           vehement        vehement       
+  vehor           vehor           veil            veil           
+  veiled          veil            veiling         veil           
+  vein            vein            veins           vein           
+  vell            vell            velure          velur          
+  velutus         velutu          velvet          velvet         
+  vendible        vendibl         venerable       vener          
+  venereal        vener           venetia         venetia        
+  venetian        venetian        venetians       venetian       
+  veneys          venei           venge           veng           
+  vengeance       vengeanc        vengeances      vengeanc       
+  vengeful        veng            veni            veni           
+  venial          venial          venice          venic          
+  venison         venison         venit           venit          
+  venom           venom           venomous        venom          
+  venomously      venom           vent            vent           
+  ventages        ventag          vented          vent           
+  ventidius       ventidiu        ventricle       ventricl       
+  vents           vent            ventur          ventur         
+  venture         ventur          ventured        ventur         
+  ventures        ventur          venturing       ventur         
+  venturous       ventur          venue           venu           
+  venus           venu            venuto          venuto         
+  ver             ver             verb            verb           
+  verba           verba           verbal          verbal         
+  verbatim        verbatim        verbosity       verbos         
+  verdict         verdict         verdun          verdun         
+  verdure         verdur          vere            vere           
+  verefore        verefor         verg            verg           
+  verge           verg            vergers         verger         
+  verges          verg            verier          verier         
+  veriest         veriest         verified        verifi         
+  verify          verifi          verily          verili         
+  veritable       verit           verite          verit          
+  verities        veriti          verity          veriti         
+  vermilion       vermilion       vermin          vermin         
+  vernon          vernon          verona          verona         
+  veronesa        veronesa        versal          versal         
+  verse           vers            verses          vers           
+  versing         vers            vert            vert           
+  very            veri            vesper          vesper         
+  vessel          vessel          vessels         vessel         
+  vestal          vestal          vestments       vestment       
+  vesture         vestur          vetch           vetch          
+  vetches         vetch           veux            veux           
+  vex             vex             vexation        vexat          
+  vexations       vexat           vexed           vex            
+  vexes           vex             vexest          vexest         
+  vexeth          vexeth          vexing          vex            
+  vi              vi              via             via            
+  vial            vial            vials           vial           
+  viand           viand           viands          viand          
+  vic             vic             vicar           vicar          
+  vice            vice            vicegerent      viceger        
+  vicentio        vicentio        viceroy         viceroi        
+  viceroys        viceroi         vices           vice           
+  vici            vici            vicious         viciou         
+  viciousness     vicious         vict            vict           
+  victims         victim          victor          victor         
+  victoress       victoress       victories       victori        
+  victorious      victori         victors         victor         
+  victory         victori         victual         victual        
+  victuall        victual         victuals        victual        
+  videlicet       videlicet       video           video          
+  vides           vide            videsne         videsn         
+  vidi            vidi            vie             vie            
+  vied            vi              vienna          vienna         
+  view            view            viewest         viewest        
+  vieweth         vieweth         viewing         view           
+  viewless        viewless        views           view           
+  vigil           vigil           vigilance       vigil          
+  vigilant        vigil           vigitant        vigit          
+  vigour          vigour          vii             vii            
+  viii            viii            vile            vile           
+  vilely          vile            vileness        vile           
+  viler           viler           vilest          vilest         
+  vill            vill            village         villag         
+  villager        villag          villagery       villageri      
+  villages        villag          villain         villain        
+  villainies      villaini        villainous      villain        
+  villainously    villain         villains        villain        
+  villainy        villaini        villanies       villani        
+  villanous       villan          villany         villani        
+  villiago        villiago        villian         villian        
+  villianda       villianda       villians        villian        
+  vinaigre        vinaigr         vincentio       vincentio      
+  vincere         vincer          vindicative     vindic         
+  vine            vine            vinegar         vinegar        
+  vines           vine            vineyard        vineyard       
+  vineyards       vineyard        vint            vint           
+  vintner         vintner         viol            viol           
+  viola           viola           violate         violat         
+  violated        violat          violates        violat         
+  violation       violat          violator        violat         
+  violence        violenc         violent         violent        
+  violenta        violenta        violenteth      violenteth     
+  violently       violent         violet          violet         
+  violets         violet          viper           viper          
+  viperous        viper           vipers          viper          
+  vir             vir             virgilia        virgilia       
+  virgin          virgin          virginal        virgin         
+  virginalling    virginal        virginity       virgin         
+  virginius       virginiu        virgins         virgin         
+  virgo           virgo           virtue          virtu          
+  virtues         virtu           virtuous        virtuou        
+  virtuously      virtuous        visag           visag          
+  visage          visag           visages         visag          
+  visard          visard          viscount        viscount       
+  visible         visibl          visibly         visibl         
+  vision          vision          visions         vision         
+  visit           visit           visitation      visit          
+  visitations     visit           visited         visit          
+  visiting        visit           visitings       visit          
+  visitor         visitor         visitors        visitor        
+  visits          visit           visor           visor          
+  vita            vita            vitae           vita           
+  vital           vital           vitement        vitement       
+  vitruvio        vitruvio        vitx            vitx           
+  viva            viva            vivant          vivant         
+  vive            vive            vixen           vixen          
+  viz             viz             vizaments       vizament       
+  vizard          vizard          vizarded        vizard         
+  vizards         vizard          vizor           vizor          
+  vlouting        vlout           vocation        vocat          
+  vocativo        vocativo        vocatur         vocatur        
+  voce            voce            voic            voic           
+  voice           voic            voices          voic           
+  void            void            voided          void           
+  voiding         void            voke            voke           
+  volable         volabl          volant          volant         
+  volivorco       volivorco       volley          vollei         
+  volquessen      volquessen      volsce          volsc          
+  volsces         volsc           volscian        volscian       
+  volscians       volscian        volt            volt           
+  voltemand       voltemand       volubility      volubl         
+  voluble         volubl          volume          volum          
+  volumes         volum           volumnia        volumnia       
+  volumnius       volumniu        voluntaries     voluntari      
+  voluntary       voluntari       voluptuously    voluptu        
+  voluptuousness  voluptu         vomissement     vomiss         
+  vomit           vomit           vomits          vomit          
+  vor             vor             vore            vore           
+  vortnight       vortnight       vot             vot            
+  votaries        votari          votarist        votarist       
+  votarists       votarist        votary          votari         
+  votre           votr            vouch           vouch          
+  voucher         voucher         vouchers        voucher        
+  vouches         vouch           vouching        vouch          
+  vouchsaf        vouchsaf        vouchsafe       vouchsaf       
+  vouchsafed      vouchsaf        vouchsafes      vouchsaf       
+  vouchsafing     vouchsaf        voudrais        voudrai        
+  vour            vour            vous            vou            
+  voutsafe        voutsaf         vow             vow            
+  vowed           vow             vowel           vowel          
+  vowels          vowel           vowing          vow            
+  vows            vow             vox             vox            
+  voyage          voyag           voyages         voyag          
+  vraiment        vraiment        vulcan          vulcan         
+  vulgar          vulgar          vulgarly        vulgarli       
+  vulgars         vulgar          vulgo           vulgo          
+  vulnerable      vulner          vulture         vultur         
+  vultures        vultur          vurther         vurther        
+  w               w               wad             wad            
+  waddled         waddl           wade            wade           
+  waded           wade            wafer           wafer          
+  waft            waft            waftage         waftag         
+  wafting         waft            wafts           waft           
+  wag             wag             wage            wage           
+  wager           wager           wagers          wager          
+  wages           wage            wagging         wag            
+  waggish         waggish         waggling        waggl          
+  waggon          waggon          waggoner        waggon         
+  wagon           wagon           wagoner         wagon          
+  wags            wag             wagtail         wagtail        
+  wail            wail            wailful         wail           
+  wailing         wail            wails           wail           
+  wain            wain            wainropes       wainrop        
+  wainscot        wainscot        waist           waist          
+  wait            wait            waited          wait           
+  waiter          waiter          waiteth         waiteth        
+  waiting         wait            waits           wait           
+  wak             wak             wake            wake           
+  waked           wake            wakefield       wakefield      
+  waken           waken           wakened         waken          
+  wakes           wake            wakest          wakest         
+  waking          wake            wales           wale           
+  walk            walk            walked          walk           
+  walking         walk            walks           walk           
+  wall            wall            walled          wall           
+  wallet          wallet          wallets         wallet         
+  wallon          wallon          walloon         walloon        
+  wallow          wallow          walls           wall           
+  walnut          walnut          walter          walter         
+  wan             wan             wand            wand           
+  wander          wander          wanderer        wander         
+  wanderers       wander          wandering       wander         
+  wanders         wander          wands           wand           
+  wane            wane            waned           wane           
+  wanes           wane            waning          wane           
+  wann            wann            want            want           
+  wanted          want            wanteth         wanteth        
+  wanting         want            wanton          wanton         
+  wantonly        wantonli        wantonness      wanton         
+  wantons         wanton          wants           want           
+  wappen          wappen          war             war            
+  warble          warbl           warbling        warbl          
+  ward            ward            warded          ward           
+  warden          warden          warder          warder         
+  warders         warder          wardrobe        wardrob        
+  wardrop         wardrop         wards           ward           
+  ware            ware            wares           ware           
+  warily          warili          warkworth       warkworth      
+  warlike         warlik          warm            warm           
+  warmed          warm            warmer          warmer         
+  warming         warm            warms           warm           
+  warmth          warmth          warn            warn           
+  warned          warn            warning         warn           
+  warnings        warn            warns           warn           
+  warp            warp            warped          warp           
+  warr            warr            warrant         warrant        
+  warranted       warrant         warranteth      warranteth     
+  warrantise      warrantis       warrantize      warrant        
+  warrants        warrant         warranty        warranti       
+  warren          warren          warrener        warren         
+  warring         war             warrior         warrior        
+  warriors        warrior         wars            war            
+  wart            wart            warwick         warwick        
+  warwickshire    warwickshir     wary            wari           
+  was             wa              wash            wash           
+  washed          wash            washer          washer         
+  washes          wash            washford        washford       
+  washing         wash            wasp            wasp           
+  waspish         waspish         wasps           wasp           
+  wassail         wassail         wassails        wassail        
+  wast            wast            waste           wast           
+  wasted          wast            wasteful        wast           
+  wasters         waster          wastes          wast           
+  wasting         wast            wat             wat            
+  watch           watch           watched         watch          
+  watchers        watcher         watches         watch          
+  watchful        watch           watching        watch          
+  watchings       watch           watchman        watchman       
+  watchmen        watchmen        watchword       watchword      
+  water           water           waterdrops      waterdrop      
+  watered         water           waterfly        waterfli       
+  waterford       waterford       watering        water          
+  waterish        waterish        waterpots       waterpot       
+  waterrugs       waterrug        waters          water          
+  waterton        waterton        watery          wateri         
+  wav             wav             wave            wave           
+  waved           wave            waver           waver          
+  waverer         waver           wavering        waver          
+  waves           wave            waving          wave           
+  waw             waw             wawl            wawl           
+  wax             wax             waxed           wax            
+  waxen           waxen           waxes           wax            
+  waxing          wax             way             wai            
+  waylaid         waylaid         waylay          waylai         
+  ways            wai             wayward         wayward        
+  waywarder       wayward         waywardness     wayward        
+  we              we              weak            weak           
+  weaken          weaken          weakens         weaken         
+  weaker          weaker          weakest         weakest        
+  weakling        weakl           weakly          weakli         
+  weakness        weak            weal            weal           
+  wealsmen        wealsmen        wealth          wealth         
+  wealthiest      wealthiest      wealthily       wealthili      
+  wealthy         wealthi         wealtlly        wealtlli       
+  wean            wean            weapon          weapon         
+  weapons         weapon          wear            wear           
+  wearer          wearer          wearers         wearer         
+  wearied         weari           wearies         weari          
+  weariest        weariest        wearily         wearili        
+  weariness       weari           wearing         wear           
+  wearisome       wearisom        wears           wear           
+  weary           weari           weasel          weasel         
+  weather         weather         weathercock     weathercock    
+  weathers        weather         weav            weav           
+  weave           weav            weaver          weaver         
+  weavers         weaver          weaves          weav           
+  weaving         weav            web             web            
+  wed             wed             wedded          wed            
+  wedding         wed             wedg            wedg           
+  wedged          wedg            wedges          wedg           
+  wedlock         wedlock         wednesday       wednesdai      
+  weed            weed            weeded          weed           
+  weeder          weeder          weeding         weed           
+  weeds           weed            weedy           weedi          
+  week            week            weeke           week           
+  weekly          weekli          weeks           week           
+  ween            ween            weening         ween           
+  weep            weep            weeper          weeper         
+  weeping         weep            weepingly       weepingli      
+  weepings        weep            weeps           weep           
+  weet            weet            weigh           weigh          
+  weighed         weigh           weighing        weigh          
+  weighs          weigh           weight          weight         
+  weightier       weightier       weightless      weightless     
+  weights         weight          weighty         weighti        
+  weird           weird           welcom          welcom         
+  welcome         welcom          welcomer        welcom         
+  welcomes        welcom          welcomest       welcomest      
+  welfare         welfar          welkin          welkin         
+  well            well            wells           well           
+  welsh           welsh           welshman        welshman       
+  welshmen        welshmen        welshwomen      welshwomen     
+  wench           wench           wenches         wench          
+  wenching        wench           wend            wend           
+  went            went            wept            wept           
+  weraday         weradai         were            were           
+  wert            wert            west            west           
+  western         western         westminster     westminst      
+  westmoreland    westmoreland    westward        westward       
+  wet             wet             wether          wether         
+  wetting         wet             wezand          wezand         
+  whale           whale           whales          whale          
+  wharf           wharf           wharfs          wharf          
+  what            what            whate           whate          
+  whatever        whatev          whatsoe         whatso         
+  whatsoever      whatsoev        whatsome        whatsom        
+  whe             whe             wheat           wheat          
+  wheaten         wheaten         wheel           wheel          
+  wheeling        wheel           wheels          wheel          
+  wheer           wheer           wheeson         wheeson        
+  wheezing        wheez           whelk           whelk          
+  whelks          whelk           whelm           whelm          
+  whelp           whelp           whelped         whelp          
+  whelps          whelp           when            when           
+  whenas          whena           whence          whenc          
+  whencesoever    whencesoev      whene           whene          
+  whenever        whenev          whensoever      whensoev       
+  where           where           whereabout      whereabout     
+  whereas         wherea          whereat         whereat        
+  whereby         wherebi         wherefore       wherefor       
+  wherein         wherein         whereinto       whereinto      
+  whereof         whereof         whereon         whereon        
+  whereout        whereout        whereso         whereso        
+  wheresoe        whereso         wheresoever     wheresoev      
+  wheresome       wheresom        whereto         whereto        
+  whereuntil      whereuntil      whereunto       whereunto      
+  whereupon       whereupon       wherever        wherev         
+  wherewith       wherewith       wherewithal     wherewith      
+  whet            whet            whether         whether        
+  whetstone       whetston        whetted         whet           
+  whew            whew            whey            whei           
+  which           which           whiff           whiff          
+  whiffler        whiffler        while           while          
+  whiles          while           whilst          whilst         
+  whin            whin            whine           whine          
+  whined          whine           whinid          whinid         
+  whining         whine           whip            whip           
+  whipp           whipp           whippers        whipper        
+  whipping        whip            whips           whip           
+  whipster        whipster        whipstock       whipstock      
+  whipt           whipt           whirl           whirl          
+  whirled         whirl           whirligig       whirligig      
+  whirling        whirl           whirlpool       whirlpool      
+  whirls          whirl           whirlwind       whirlwind      
+  whirlwinds      whirlwind       whisp           whisp          
+  whisper         whisper         whispering      whisper        
+  whisperings     whisper         whispers        whisper        
+  whist           whist           whistle         whistl         
+  whistles        whistl          whistling       whistl         
+  whit            whit            white           white          
+  whitehall       whitehal        whitely         white          
+  whiteness       white           whiter          whiter         
+  whites          white           whitest         whitest        
+  whither         whither         whiting         white          
+  whitmore        whitmor         whitsters       whitster       
+  whitsun         whitsun         whittle         whittl         
+  whizzing        whizz           who             who            
+  whoa            whoa            whoe            whoe           
+  whoever         whoever         whole           whole          
+  wholesom        wholesom        wholesome       wholesom       
+  wholly          wholli          whom            whom           
+  whoobub         whoobub         whoop           whoop          
+  whooping        whoop           whor            whor           
+  whore           whore           whoremaster     whoremast      
+  whoremasterly   whoremasterli   whoremonger     whoremong      
+  whores          whore           whoreson        whoreson       
+  whoresons       whoreson        whoring         whore          
+  whorish         whorish         whose           whose          
+  whoso           whoso           whosoe          whoso          
+  whosoever       whosoev         why             why            
+  wi              wi              wick            wick           
+  wicked          wick            wickednes       wickedn        
+  wickedness      wicked          wicket          wicket         
+  wicky           wicki           wid             wid            
+  wide            wide            widens          widen          
+  wider           wider           widow           widow          
+  widowed         widow           widower         widow          
+  widowhood       widowhood       widows          widow          
+  wield           wield           wife            wife           
+  wight           wight           wights          wight          
+  wild            wild            wildcats        wildcat        
+  wilder          wilder          wilderness      wilder         
+  wildest         wildest         wildfire        wildfir        
+  wildly          wildli          wildness        wild           
+  wilds           wild            wiles           wile           
+  wilful          wil             wilfull         wilful         
+  wilfully        wilfulli        wilfulnes       wilfuln        
+  wilfulness      wil             will            will           
+  willed          will            willers         willer         
+  willeth         willeth         william         william        
+  williams        william         willing         will           
+  willingly       willingli       willingness     willing        
+  willoughby      willoughbi      willow          willow         
+  wills           will            wilt            wilt           
+  wiltshire       wiltshir        wimpled         wimpl          
+  win             win             wince           winc           
+  winch           winch           winchester      winchest       
+  wincot          wincot          wind            wind           
+  winded          wind            windgalls       windgal        
+  winding         wind            windlasses      windlass       
+  windmill        windmil         window          window         
+  windows         window          windpipe        windpip        
+  winds           wind            windsor         windsor        
+  windy           windi           wine            wine           
+  wing            wing            winged          wing           
+  wingfield       wingfield       wingham         wingham        
+  wings           wing            wink            wink           
+  winking         wink            winks           wink           
+  winner          winner          winners         winner         
+  winning         win             winnow          winnow         
+  winnowed        winnow          winnows         winnow         
+  wins            win             winter          winter         
+  winterly        winterli        winters         winter         
+  wip             wip             wipe            wipe           
+  wiped           wipe            wipes           wipe           
+  wiping          wipe            wire            wire           
+  wires           wire            wiry            wiri           
+  wisdom          wisdom          wisdoms         wisdom         
+  wise            wise            wiselier        wiseli         
+  wisely          wise            wiser           wiser          
+  wisest          wisest          wish            wish           
+  wished          wish            wisher          wisher         
+  wishers         wisher          wishes          wish           
+  wishest         wishest         wisheth         wisheth        
+  wishful         wish            wishing         wish           
+  wishtly         wishtli         wisp            wisp           
+  wist            wist            wit             wit            
+  witb            witb            witch           witch          
+  witchcraft      witchcraft      witches         witch          
+  witching        witch           with            with           
+  withal          withal          withdraw        withdraw       
+  withdrawing     withdraw        withdrawn       withdrawn      
+  withdrew        withdrew        wither          wither         
+  withered        wither          withering       wither         
+  withers         wither          withheld        withheld       
+  withhold        withhold        withholds       withhold       
+  within          within          withold         withold        
+  without         without         withstand       withstand      
+  withstanding    withstand       withstood       withstood      
+  witless         witless         witness         wit            
+  witnesses       wit             witnesseth      witnesseth     
+  witnessing      wit             wits            wit            
+  witted          wit             wittenberg      wittenberg     
+  wittiest        wittiest        wittily         wittili        
+  witting         wit             wittingly       wittingli      
+  wittol          wittol          wittolly        wittolli       
+  witty           witti           wiv             wiv            
+  wive            wive            wived           wive           
+  wives           wive            wiving          wive           
+  wizard          wizard          wizards         wizard         
+  wo              wo              woe             woe            
+  woeful          woeful          woefull         woeful         
+  woefullest      woefullest      woes            woe            
+  woful           woful           wolf            wolf           
+  wolfish         wolfish         wolsey          wolsei         
+  wolves          wolv            wolvish         wolvish        
+  woman           woman           womanhood       womanhood      
+  womanish        womanish        womankind       womankind      
+  womanly         womanli         womb            womb           
+  wombs           womb            womby           wombi          
+  women           women           won             won            
+  woncot          woncot          wond            wond           
+  wonder          wonder          wondered        wonder         
+  wonderful       wonder          wonderfully     wonderfulli    
+  wondering       wonder          wonders         wonder         
+  wondrous        wondrou         wondrously      wondrous       
+  wont            wont            wonted          wont           
+  woo             woo             wood            wood           
+  woodbine        woodbin         woodcock        woodcock       
+  woodcocks       woodcock        wooden          wooden         
+  woodland        woodland        woodman         woodman        
+  woodmonger      woodmong        woods           wood           
+  woodstock       woodstock       woodville       woodvil        
+  wooed           woo             wooer           wooer          
+  wooers          wooer           wooes           wooe           
+  woof            woof            wooing          woo            
+  wooingly        wooingli        wool            wool           
+  woollen         woollen         woolly          woolli         
+  woolsack        woolsack        woolsey         woolsei        
+  woolward        woolward        woos            woo            
+  wor             wor             worcester       worcest        
+  word            word            words           word           
+  wore            wore            worins          worin          
+  work            work            workers         worker         
+  working         work            workings        work           
+  workman         workman         workmanly       workmanli      
+  workmanship     workmanship     workmen         workmen        
+  works           work            worky           worki          
+  world           world           worldlings      worldl         
+  worldly         worldli         worlds          world          
+  worm            worm            worms           worm           
+  wormwood        wormwood        wormy           wormi          
+  worn            worn            worried         worri          
+  worries         worri           worry           worri          
+  worrying        worri           worse           wors           
+  worser          worser          worship         worship        
+  worshipful      worship         worshipfully    worshipfulli   
+  worshipp        worshipp        worshipper      worshipp       
+  worshippers     worshipp        worshippest     worshippest    
+  worships        worship         worst           worst          
+  worsted         worst           wort            wort           
+  worth           worth           worthied        worthi         
+  worthier        worthier        worthies        worthi         
+  worthiest       worthiest       worthily        worthili       
+  worthiness      worthi          worthless       worthless      
+  worths          worth           worthy          worthi         
+  worts           wort            wot             wot            
+  wots            wot             wotting         wot            
+  wouid           wouid           would           would          
+  wouldest        wouldest        wouldst         wouldst        
+  wound           wound           wounded         wound          
+  wounding        wound           woundings       wound          
+  woundless       woundless       wounds          wound          
+  wouns           woun            woven           woven          
+  wow             wow             wrack           wrack          
+  wrackful        wrack           wrangle         wrangl         
+  wrangler        wrangler        wranglers       wrangler       
+  wrangling       wrangl          wrap            wrap           
+  wrapp           wrapp           wraps           wrap           
+  wrapt           wrapt           wrath           wrath          
+  wrathful        wrath           wrathfully      wrathfulli     
+  wraths          wrath           wreak           wreak          
+  wreakful        wreak           wreaks          wreak          
+  wreath          wreath          wreathed        wreath         
+  wreathen        wreathen        wreaths         wreath         
+  wreck           wreck           wrecked         wreck          
+  wrecks          wreck           wren            wren           
+  wrench          wrench          wrenching       wrench         
+  wrens           wren            wrest           wrest          
+  wrested         wrest           wresting        wrest          
+  wrestle         wrestl          wrestled        wrestl         
+  wrestler        wrestler        wrestling       wrestl         
+  wretch          wretch          wretchcd        wretchcd       
+  wretched        wretch          wretchedness    wretched       
+  wretches        wretch          wring           wring          
+  wringer         wringer         wringing        wring          
+  wrings          wring           wrinkle         wrinkl         
+  wrinkled        wrinkl          wrinkles        wrinkl         
+  wrist           wrist           wrists          wrist          
+  writ            writ            write           write          
+  writer          writer          writers         writer         
+  writes          write           writhled        writhl         
+  writing         write           writings        write          
+  writs           writ            written         written        
+  wrong           wrong           wronged         wrong          
+  wronger         wronger         wrongful        wrong          
+  wrongfully      wrongfulli      wronging        wrong          
+  wrongly         wrongli         wrongs          wrong          
+  wronk           wronk           wrote           wrote          
+  wroth           wroth           wrought         wrought        
+  wrung           wrung           wry             wry            
+  wrying          wry             wt              wt             
+  wul             wul             wye             wye            
+  x               x               xanthippe       xanthipp       
+  xi              xi              xii             xii            
+  xiii            xiii            xiv             xiv            
+  xv              xv              y               y              
+  yard            yard            yards           yard           
+  yare            yare            yarely          yare           
+  yarn            yarn            yaughan         yaughan        
+  yaw             yaw             yawn            yawn           
+  yawning         yawn            ycleped         yclepe         
+  ycliped         yclipe          ye              ye             
+  yea             yea             yead            yead           
+  year            year            yearly          yearli         
+  yearn           yearn           yearns          yearn          
+  years           year            yeas            yea            
+  yeast           yeast           yedward         yedward        
+  yell            yell            yellow          yellow         
+  yellowed        yellow          yellowing       yellow         
+  yellowness      yellow          yellows         yellow         
+  yells           yell            yelping         yelp           
+  yeoman          yeoman          yeomen          yeomen         
+  yerk            yerk            yes             ye             
+  yesterday       yesterdai       yesterdays      yesterdai      
+  yesternight     yesternight     yesty           yesti          
+  yet             yet             yew             yew            
+  yicld           yicld           yield           yield          
+  yielded         yield           yielder         yielder        
+  yielders        yielder         yielding        yield          
+  yields          yield           yok             yok            
+  yoke            yoke            yoked           yoke           
+  yokefellow      yokefellow      yokes           yoke           
+  yoketh          yoketh          yon             yon            
+  yond            yond            yonder          yonder         
+  yongrey         yongrei         yore            yore           
+  yorick          yorick          york            york           
+  yorkists        yorkist         yorks           york           
+  yorkshire       yorkshir        you             you            
+  young           young           younger         younger        
+  youngest        youngest        youngling       youngl         
+  younglings      youngl          youngly         youngli        
+  younker         younker         your            your           
+  yours           your            yourself        yourself       
+  yourselves      yourselv        youth           youth          
+  youthful        youth           youths          youth          
+  youtli          youtli          zanies          zani           
+  zany            zani            zeal            zeal           
+  zealous         zealou          zeals           zeal           
+  zed             zed             zenelophon      zenelophon     
+  zenith          zenith          zephyrs         zephyr         
+  zir             zir             zo              zo             
+  zodiac          zodiac          zodiacs         zodiac         
+  zone            zone            zounds          zound          
+  zwagger         zwagger                                        
+}
+
+
+set i 0
+foreach {in out} $test_vocab {
+  do_test "1.$i.($in -> $out)" {
+    lindex [sqlite3_fts5_tokenize db porter $in] 0
+  } $out
+  incr i
+}
+
+
+finish_test
diff --git a/ext/fts5/test/fts5porter2.test b/ext/fts5/test/fts5porter2.test
new file mode 100644
index 0000000000000000000000000000000000000000..556060baa30c6aed9685b9fcbe4be13c3c49df19
--- /dev/null
+++ b/ext/fts5/test/fts5porter2.test
@@ -0,0 +1,69 @@
+# 2014 Dec 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests focusing on the fts5 porter stemmer implementation.
+#
+# These are extra tests added to those in fts5porter.test in order to
+# improve test coverage of the porter stemmer implementation.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5porter2
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+set test_vocab {
+  tion          tion
+  ation         ation
+  vation        vation
+  avation       avat
+  vion          vion
+  ion           ion
+  relational    relat
+  relation      relat
+  relate        relat
+  zzz           zzz
+  ii            ii
+  iiing         ii
+  xtional       xtional
+  xenci         xenci
+  xlogi         xlogi
+  realization   realiz
+  realize       realiz
+  xization      xizat
+  capitalism    capit
+  talism        talism
+  xiveness      xive
+  xfulness      xful
+  xousness      xous
+  xical         xical
+  xicate        xicat
+  xicity        xiciti
+  ies           ie
+  eed           e
+  eing           e
+  s             s
+}
+
+set i 0
+foreach {in out} $test_vocab {
+  do_test "1.$i.($in -> $out)" {
+    lindex [sqlite3_fts5_tokenize db porter $in] 0
+  } $out
+  incr i
+}
+
+
+finish_test
diff --git a/ext/fts5/test/fts5prefix.test b/ext/fts5/test/fts5prefix.test
new file mode 100644
index 0000000000000000000000000000000000000000..7a29628ea11e9c822f0bbaa84cecb81dfc393f2d
--- /dev/null
+++ b/ext/fts5/test/fts5prefix.test
@@ -0,0 +1,343 @@
+# 2015 Jan 13
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains tests focused on prefix indexes.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5prefix
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE xx USING fts5(x, prefix=1);
+  INSERT INTO xx VALUES('one two three');
+  INSERT INTO xx VALUES('four five six');
+  INSERT INTO xx VALUES('seven eight nine ten');
+}
+
+do_execsql_test 1.1 {
+  SELECT rowid FROM xx WHERE xx MATCH 't*'
+} {1 3}
+
+
+#-------------------------------------------------------------------------
+# Check that prefix indexes really do index n-character prefixes, not 
+# n-byte prefixes. Use the ascii tokenizer so as not to be confused by
+# diacritic removal.
+#
+do_execsql_test 2.0 { 
+  CREATE VIRTUAL TABLE t1 USING fts5(x, tokenize = ascii, prefix = 2) 
+}
+
+do_test 2.1 {
+  foreach {rowid string} {
+    1 "\xCA\xCB\xCC\xCD"
+    2 "\u1234\u5678\u4321\u8765"
+  } {
+    execsql { INSERT INTO t1(rowid, x) VALUES($rowid, $string) }
+  }
+} {}
+
+do_execsql_test 2.2 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+}
+
+foreach {tn q res} {
+  1 "SELECT rowid FROM t1 WHERE t1 MATCH '\xCA\xCB*'" 1
+  2 "SELECT rowid FROM t1 WHERE t1 MATCH '\u1234\u5678*'" 2
+} {
+  do_execsql_test 2.3.$tn $q $res
+}
+
+#-------------------------------------------------------------------------
+# Check that prefix queries with:
+#
+#   * a column filter, and
+#   * no prefix index.
+#
+# work Ok.
+#
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE t3 USING fts5(a, b, c);
+  INSERT INTO t3(t3, rank) VALUES('pgsz', 32);
+  BEGIN;
+    INSERT INTO t3 VALUES('acb ccc bba', 'cca bba bca', 'bbc ccc bca'); -- 1
+    INSERT INTO t3 VALUES('cbb cac cab', 'abb aac bba', 'aab ccc cac'); -- 2
+    INSERT INTO t3 VALUES('aac bcb aac', 'acb bcb caa', 'aca bab bca'); -- 3
+    INSERT INTO t3 VALUES('aab ccb ccc', 'aca cba cca', 'aca aac cbb'); -- 4
+    INSERT INTO t3 VALUES('bac aab bab', 'ccb bac cba', 'acb aba abb'); -- 5
+    INSERT INTO t3 VALUES('bab abc ccb', 'acb cba abb', 'cbb aaa cab'); -- 6
+    INSERT INTO t3 VALUES('cbb bbc baa', 'aab aca baa', 'bcc cca aca'); -- 7
+    INSERT INTO t3 VALUES('abc bba abb', 'cac abc cba', 'acc aac cac'); -- 8
+    INSERT INTO t3 VALUES('bbc bbc cab', 'bcb ccb cba', 'bcc cac acb'); -- 9
+  COMMIT;
+}
+
+foreach {tn match res} {
+  1 "a : c*" {1 2 4 6 7 9}
+  2 "b : c*" {1 3 4 5 6 8 9}
+  3 "c : c*" {1 2 4 6 7 8 9}
+  4 "a : b*" {1 3 5 6 7 8 9}
+  5 "b : b*" {1 2 3 5 7 9}
+  6 "c : b*" {1 3 7 9}
+  7 "a : a*" {1 3 4 5 6 8}
+  8 "b : a*" {2 3 4 6 7 8}
+  9 "c : a*" {2 3 4 5 6 7 8 9}
+} {
+  do_execsql_test 3.1.$tn {
+    SELECT rowid FROM t3($match)
+  } $res
+}
+
+do_test 3.2 {
+  expr srand(0)
+  execsql { DELETE FROM t3 }
+  for {set i 0} {$i < 1000} {incr i} {
+    set a [fts5_rnddoc 3]
+    set b [fts5_rnddoc 8]
+    set c [fts5_rnddoc 20]
+    execsql { INSERT INTO t3 VALUES($a, $b, $c) }
+  }
+  execsql { INSERT INTO t3(t3) VALUES('integrity-check') }
+} {}
+
+proc gmatch {col pattern} {
+  expr {[lsearch -glob $col $pattern]>=0}
+}
+db func gmatch gmatch
+
+proc ghl {col pattern} {
+  foreach t $col {
+    if {[string match $pattern $t]} {
+      lappend res "*$t*"
+    } else {
+      lappend res $t
+    }
+  }
+  set res
+}
+db func ghl ghl
+
+set COLS(a) 0
+set COLS(b) 1
+set COLS(c) 2
+
+for {set x 0} {$x<2} {incr x} {
+  foreach {tn pattern} {
+    1  {xa*}
+    2  {xb*}
+    3  {xc*}
+    4  {xd*}
+    5  {xe*}
+    6  {xf*}
+    7  {xg*}
+    8  {xh*}
+    9  {xi*}
+    10 {xj*}
+  } {
+    foreach col {a b c} {
+
+      # Check that the list of returned rowids is correct.
+      #
+      set res [db eval "SELECT rowid FROM t3 WHERE gmatch($col, '$pattern')"]
+      set query "$col : $pattern"
+      do_execsql_test 3.3.$x.$tn.$col.rowid {
+        SELECT rowid FROM t3($query);
+      } $res
+
+      # Check that the highlight() function works.
+      #
+      set res [db eval \
+        "SELECT ghl($col, '$pattern') FROM t3 WHERE gmatch($col, '$pattern')"
+      ]
+      set idx $COLS($col)
+      do_execsql_test 3.3.$x.$tn.$col.highlight {
+        SELECT highlight(t3, $idx, '*', '*') FROM t3($query);
+      } $res
+    }
+
+    foreach colset {{a b} {b c} {c a} {a c} {b a}} {
+      # Check that the list of returned rowids is correct.
+      #
+      foreach {col1 col2} $colset {}
+      set expr "gmatch($col1, '$pattern') OR gmatch($col2, '$pattern')"
+      set res [db eval "SELECT rowid FROM t3 WHERE $expr"]
+      set query "{$colset} : $pattern"
+      do_execsql_test 3.3.$x.$tn.{$colset}.rowid {
+        SELECT rowid FROM t3($query);
+      } $res
+
+      set resq    "SELECT ghl($col1, '$pattern'), ghl($col2, '$pattern')"
+      append resq " FROM t3 WHERE $expr"
+      set res [db eval $resq]
+      set idx1 $COLS($col1)
+      set idx2 $COLS($col2)
+      do_execsql_test 3.3.$x.$tn.{$colset}.highlight {
+        SELECT highlight(t3, $idx1, '*', '*'), highlight(t3, $idx2, '*', '*')
+          FROM t3($query)
+      } $res
+    }
+  }
+  execsql { INSERT INTO t3(t3) VALUES('optimize') }
+  execsql { INSERT INTO t3(t3) VALUES('integrity-check') }
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE t2 USING fts5(c1, c2);
+  INSERT INTO t2 VALUES('xa xb', 'xb xa');
+
+  INSERT INTO t2 SELECT c1||' '||c1, c2||' '||c2 FROM t2; -- 2
+  INSERT INTO t2 SELECT c1||' '||c1, c2||' '||c2 FROM t2; -- 4
+  INSERT INTO t2 SELECT c1||' '||c1, c2||' '||c2 FROM t2; -- 8
+  INSERT INTO t2 SELECT c1||' '||c1, c2||' '||c2 FROM t2; -- 16
+  INSERT INTO t2 SELECT c1||' '||c1, c2||' '||c2 FROM t2; -- 32
+  INSERT INTO t2 SELECT c1||' '||c1, c2||' '||c2 FROM t2; -- 64
+  INSERT INTO t2 SELECT c1||' '||c1, c2||' '||c2 FROM t2; -- 128
+  INSERT INTO t2 SELECT c1||' '||c1, c2||' '||c2 FROM t2; -- 256
+  INSERT INTO t2 SELECT c1||' '||c1, c2||' '||c2 FROM t2; -- 512
+  INSERT INTO t2 SELECT c1||' '||c1, c2||' '||c2 FROM t2; -- 1024
+  INSERT INTO t2 SELECT c1||' '||c1, c2||' '||c2 FROM t2; -- 2048
+  INSERT INTO t2 SELECT c1||' '||c1, c2||' '||c2 FROM t2; -- 4096
+
+  SELECT count(*) FROM t2('x*');
+} {4096}
+
+do_execsql_test 4.1 {
+  UPDATE t2 SET c2 = 'ya yb';
+  SELECT count(*) FROM t2('c1:x*');
+  SELECT count(*) FROM t2('c2:x*');
+} {4096 0}
+
+do_execsql_test 4.2 {
+  UPDATE t2 SET c2 = 'xa';
+  SELECT count(*) FROM t2('c1:x*');
+  SELECT count(*) FROM t2('c2:x*');
+} {4096 4096}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+proc rnddoc {n} {
+  set map [list a b c d]
+  set doc [list]
+  for {set i 0} {$i < $n} {incr i} {
+    lappend doc "x[lindex $map [expr int(rand()*4)]]"
+  }
+  set doc
+}
+set cols [list]
+for {set i 1} {$i<250} {incr i} { 
+  lappend cols "c$i" 
+  lappend vals "'[rnddoc 10]'"
+}
+
+do_test 5.0 {
+  execsql "CREATE VIRTUAL TABLE t4 USING fts5([join $cols ,])"
+  execsql {INSERT INTO t4(t4, rank) VALUES('pgsz', 32)}
+  execsql "INSERT INTO t4 VALUES([join $vals ,])"
+  execsql "INSERT INTO t4 VALUES([join $vals ,])"
+  execsql "INSERT INTO t4 VALUES([join $vals ,])"
+  execsql "INSERT INTO t4 VALUES([join $vals ,])"
+} {}
+
+proc gmatch {col pattern} {
+  expr {[lsearch -glob $col $pattern]>=0}
+}
+db func gmatch gmatch
+foreach {tn col pattern} {
+  1 c100 {xa*}
+  2 c200 {xb*}
+} {
+  set res [db eval "SELECT rowid FROM t4 WHERE gmatch($col, \$pattern)"]
+  set query "$col : $pattern"
+  do_execsql_test 5.$tn { SELECT rowid FROM t4($query) } $res
+}
+
+reset_db
+db func fts5_rnddoc fts5_rnddoc
+do_test 6.0 {
+  execsql {
+    CREATE VIRTUAL TABLE t5 USING fts5(x, y);
+    INSERT INTO t5 VALUES( fts5_rnddoc(10000), fts5_rnddoc(10000) );
+    INSERT INTO t5 VALUES( fts5_rnddoc(10000), fts5_rnddoc(10000) );
+    INSERT INTO t5 VALUES( fts5_rnddoc(10000), fts5_rnddoc(10000) );
+    INSERT INTO t5 VALUES( fts5_rnddoc(10000), fts5_rnddoc(10000) );
+  }
+} {}
+
+proc gmatch {col pattern} {
+  expr {[lsearch -glob $col $pattern]>=0}
+}
+db func gmatch gmatch
+foreach {tn col pattern} {
+  1 y {xa*}
+  2 y {xb*}
+  3 y {xc*}
+  4 x {xa*}
+  5 x {xb*}
+  6 x {xc*}
+} {
+  set res [db eval "SELECT rowid FROM t5 WHERE gmatch($col, \$pattern)"]
+  set query "$col : $pattern"
+  do_execsql_test 6.$tn { SELECT rowid FROM t5($query) } $res
+}
+
+#-------------------------------------------------------------------------
+# Check that the various ways of creating prefix indexes produce the
+# same database on disk.
+#
+save_prng_state
+foreach {tn create} {
+  1 { CREATE VIRTUAL TABLE tt USING fts5(x, y, prefix="1,2,3") }
+  2 { CREATE VIRTUAL TABLE tt USING fts5(x, y, prefix="1 2 3") }
+  3 { CREATE VIRTUAL TABLE tt USING fts5(x, y, prefix=1, prefix=2, prefix=3) }
+  4 { CREATE VIRTUAL TABLE tt USING fts5(x, y, prefix="1 2", prefix=3) }
+} {
+  execsql { DROP TABLE IF EXISTS tt }
+  restore_prng_state
+  execsql $create
+  execsql {
+    INSERT INTO tt VALUES('cc b ggg ccc aa eee hh', 'aa g b hh a e');
+    INSERT INTO tt VALUES('cc bb cc gg j g cc', 'ii jjj ggg jjj cc cc');
+    INSERT INTO tt VALUES('h eee cc h iii', 'aaa iii dd iii dd');
+    INSERT INTO tt VALUES('jjj hh eee c e b gg', 'j bbb jj ddd jj');
+    INSERT INTO tt VALUES('ii hhh aaa ff c hhh iii', 'j cc hh bb e');
+    INSERT INTO tt VALUES('e fff hhh i aaa', 'g b aa gg c aa dd');
+    INSERT INTO tt VALUES('i aaa ccc gg hhh aa h', 'j bbb bbb d ff');
+    INSERT INTO tt VALUES('g f gg ff ff jjj d', 'jjj d j fff fff ee j');
+    INSERT INTO tt VALUES('a cc e ccc jjj c', 'ccc iii d bb a eee g');
+    INSERT INTO tt VALUES('jj hh hh bb bbb gg', 'j c jjj bb iii f');
+    INSERT INTO tt VALUES('a ggg g cc ccc aa', 'jjj j j aaa c');
+    INSERT INTO tt VALUES('ddd j dd b i', 'aaa bbb iii ggg ff ccc ddd');
+    INSERT INTO tt VALUES('jj ii hh c ii h gg', 'hhh bbb ddd bbb hh g ggg');
+    INSERT INTO tt VALUES('aa hhh ccc h ggg ccc', 'iii d jj a ff ii');
+  }
+
+  #db eval {SELECT rowid, fts5_decode(rowid, block) aS r FROM tt_data} {puts $r}
+
+  if {$tn==1} {
+    set ::checksum [execsql {SELECT md5sum(id, block) FROM tt_data}]
+  } else {
+    do_execsql_test 7.$tn {
+      SELECT md5sum(id, block) FROM tt_data
+    } [list $::checksum]
+  }
+}
+
+finish_test
diff --git a/ext/fts5/test/fts5prefix2.test b/ext/fts5/test/fts5prefix2.test
new file mode 100644
index 0000000000000000000000000000000000000000..0860b3cddddf1c32fc9b9081369188c539ef400d
--- /dev/null
+++ b/ext/fts5/test/fts5prefix2.test
@@ -0,0 +1,87 @@
+# 2020 Dec 3
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains tests focused on prefix indexes.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5prefix2
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+foreach p {3 2 1} {
+  reset_db
+    do_execsql_test 1.$p.0 "
+    CREATE VIRTUAL TABLE t1 USING fts5(xyz, prefix=$p);
+  "
+  do_execsql_test 1.$p.1 {
+    INSERT INTO t1 VALUES
+      ('May you do good and not evil.'),
+      ('May you find forgiveness for yourself and forgive others.'),
+      ('May you share freely, never taking more than you give f.');
+  }
+
+  do_execsql_test 1.$p.2 {
+    SELECT highlight(t1, 0, '[', ']') FROM t1('f*');
+  } {
+    {May you [find] [forgiveness] [for] yourself and [forgive] others.}
+    {May you share [freely], never taking more than you give [f].}
+  }
+}
+
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE t2 USING fts5(one, prefix=3);
+  INSERT INTO t2 VALUES('top');
+  INSERT INTO t2 VALUES('to');
+  INSERT INTO t2 VALUES('tommy');
+}
+
+do_execsql_test 2.1 {
+  SELECT * FROM t2('to*');
+} {top to tommy}
+
+#-------------------------------------------------------------------------
+
+foreach {tn newrowid} {
+  1   122
+  2   123
+  3   124
+} {
+  reset_db
+  do_execsql_test 3.$tn.0 {
+    CREATE VIRTUAL TABLE t12 USING fts5(x);
+    INSERT INTO t12(rowid, x) VALUES(123, 'wwww');
+  }
+  do_execsql_test 3.$tn.1 {
+    BEGIN;
+    DELETE FROM t12 WHERE rowid=123;
+    SELECT * FROM t12('wwww*');
+    INSERT INTO t12(rowid, x) VALUES($newrowid, 'wwww');
+    SELECT * FROM t12('wwww*');
+    END;
+  } {wwww}
+  do_execsql_test 3.$tn.2 {
+    INSERT INTO t12(t12) VALUES('integrity-check');
+  }
+  do_execsql_test 3.$tn.3 {
+    SELECT rowid FROM t12('wwww*');
+  } $newrowid
+}
+
+finish_test
+
+
+
+finish_test
diff --git a/ext/fts5/test/fts5query.test b/ext/fts5/test/fts5query.test
new file mode 100644
index 0000000000000000000000000000000000000000..4e8bab8cf7f1d0c4c3575595c65261bc2f8707b5
--- /dev/null
+++ b/ext/fts5/test/fts5query.test
@@ -0,0 +1,91 @@
+# 2015 October 27
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS5 module.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5query
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+for {set tn 1 ; set pgsz 64} {$tn<32} {incr tn; incr pgsz 16} {
+  reset_db
+  do_test 1.$tn.1 {
+    execsql {
+      CREATE VIRTUAL TABLE t1 USING fts5(x);
+      INSERT INTO t1(t1, rank) VALUES('pgsz', $pgsz);
+      BEGIN;
+    }
+    foreach x [list aaa bbb ccc ddd eee fff ggg hhh iii jjj] {
+      set doc [string repeat "$x " 30]
+      execsql { INSERT INTO t1 VALUES($doc) }
+    }
+    execsql COMMIT
+  } {}
+
+  do_execsql_test 1.$tn.2 {
+    INSERT INTO t1(t1) VALUES('integrity-check');
+  }
+
+  set ret 1
+  foreach x [list a b c d e f g h i j] {
+    do_execsql_test 1.$tn.3.$ret {
+      SELECT rowid FROM t1 WHERE t1 MATCH $x || '*';
+    } $ret
+    incr ret
+  }
+}
+
+for {set tn 1 ; set pgsz 64} {$tn<32} {incr tn; incr pgsz 16} {
+  reset_db
+  do_test 2.$tn.1 {
+    execsql {
+      CREATE VIRTUAL TABLE t1 USING fts5(x);
+      INSERT INTO t1(t1, rank) VALUES('pgsz', $pgsz);
+      BEGIN;
+    }
+    foreach x [list bbb ddd fff hhh jjj lll nnn ppp rrr ttt] {
+      set doc [string repeat "$x " 30]
+      execsql { INSERT INTO t1 VALUES($doc) }
+    }
+    execsql COMMIT
+  } {}
+
+  do_execsql_test 2.$tn.2 {
+    INSERT INTO t1(t1) VALUES('integrity-check');
+  }
+
+  set ret 1
+  foreach x [list a c e g i k m o q s u] {
+    do_execsql_test 2.$tn.3.$ret {
+      SELECT rowid FROM t1 WHERE t1 MATCH $x || '*';
+    } {}
+    incr ret
+  }
+}
+
+reset_db
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE x1 USING fts5(a);
+  INSERT INTO x1(rowid, a) VALUES(-1000000000000, 'toyota');
+  INSERT INTO x1(rowid, a) VALUES(1, 'tarago');
+}
+do_execsql_test 3.1 {
+  SELECT rowid FROM x1('t*');
+} {-1000000000000 1}
+
+
+finish_test
diff --git a/ext/fts5/test/fts5rank.test b/ext/fts5/test/fts5rank.test
new file mode 100644
index 0000000000000000000000000000000000000000..7a700cb97f391e2419b6911979a708cd4f08e10a
--- /dev/null
+++ b/ext/fts5/test/fts5rank.test
@@ -0,0 +1,207 @@
+# 2014 Dec 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file focuses on testing queries that use the "rank" column.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5rank
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+
+#-------------------------------------------------------------------------
+# "ORDER BY rank" + highlight() + large poslists.
+#
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE xyz USING fts5(z);
+}
+do_test 1.1 {
+  set doc [string trim [string repeat "x y " 500]]
+  execsql { INSERT INTO xyz VALUES($doc) }
+} {}
+do_execsql_test 1.2 {
+  SELECT highlight(xyz, 0, '[', ']') FROM xyz WHERE xyz MATCH 'x' ORDER BY rank
+} [list [string map {x [x]} $doc]]
+
+do_execsql_test 1.3 {
+  SELECT highlight(xyz, 0, '[', ']') FROM xyz
+  WHERE xyz MATCH 'x AND y' ORDER BY rank
+} [list [string map {x [x] y [y]} $doc]]
+
+#-------------------------------------------------------------------------
+# Check that the 'rank' option really is persistent.
+#
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE tt USING fts5(a);
+  INSERT INTO tt VALUES('a x x x x');
+  INSERT INTO tt VALUES('x x a a a');
+  INSERT INTO tt VALUES('x a a x x');
+}
+
+proc firstinst {cmd} { 
+  foreach {p c o} [$cmd xInst 0] {}
+  return $o
+}
+sqlite3_fts5_create_function db firstinst firstinst
+
+do_execsql_test 2.1 {
+  SELECT rowid FROM tt('a') ORDER BY rank;
+} {2 3 1}
+
+do_execsql_test 2.2 {
+  SELECT rowid FROM tt('a', 'firstinst()') ORDER BY rank;
+} {1 3 2}
+
+do_execsql_test 2.3 {
+  INSERT INTO tt(tt, rank) VALUES('rank', 'firstinst()');
+  SELECT rowid FROM tt('a') ORDER BY rank;
+} {1 3 2}
+
+do_test 2.4 {
+  sqlite3 db2 test.db
+  catchsql { SELECT rowid FROM tt('a') ORDER BY rank; } db2
+} {1 {no such function: firstinst}}
+
+do_test 2.5 {
+  db2 close
+  sqlite3 db2 test.db
+  sqlite3_fts5_create_function db2 firstinst firstinst
+  execsql { SELECT rowid FROM tt('a') ORDER BY rank; } db2
+} {1 3 2}
+
+do_test 2.6 {
+  execsql { SELECT rowid FROM tt('a') ORDER BY rank; } db2
+} {1 3 2}
+
+do_test 2.7 {
+  execsql { SELECT rowid FROM tt('a') ORDER BY rank; } db
+} {1 3 2}
+
+db2 close
+
+#--------------------------------------------------------------------------
+# At one point there was a problem with queries such as:
+#
+#   ... MATCH 'x OR y' ORDER BY rank;
+#
+# if there were zero occurrences of token 'y' in the dataset. The
+# following tests verify that that problem has been addressed.
+#
+foreach_detail_mode $::testprefix {
+  do_execsql_test 3.1.0 {
+    CREATE VIRTUAL TABLE y1 USING fts5(z, detail=%DETAIL%);
+    INSERT INTO y1 VALUES('test xyz');
+    INSERT INTO y1 VALUES('test test xyz test');
+    INSERT INTO y1 VALUES('test test xyz');
+  }
+
+  do_execsql_test 3.1.1 {
+    SELECT rowid FROM y1('test OR tset');
+  } {1 2 3}
+
+  do_execsql_test 3.1.2 {
+    SELECT rowid FROM y1('test OR tset') ORDER BY bm25(y1)
+  } {2 3 1}
+
+  do_execsql_test 3.1.3 {
+    SELECT rowid FROM y1('test OR tset') ORDER BY +rank
+  } {2 3 1}
+
+  do_execsql_test 3.1.4 {
+    SELECT rowid FROM y1('test OR tset') ORDER BY rank
+  } {2 3 1}
+
+  do_execsql_test 3.1.5 {
+    SELECT rowid FROM y1('test OR xyz') ORDER BY rank
+  } {3 2 1}
+
+
+  do_execsql_test 3.2.1 {
+    CREATE VIRTUAL TABLE z1 USING fts5(a, detail=%DETAIL%);
+    INSERT INTO z1 VALUES('wrinkle in time');
+    SELECT * FROM z1 WHERE z1 MATCH 'wrinkle in time OR a wrinkle in time';
+  } {{wrinkle in time}}
+}
+
+do_execsql_test 4.1 {
+  DROP TABLE IF EXISTS VTest;
+  CREATE virtual TABLE VTest USING FTS5(
+    Title, AUthor, tokenize ='porter unicode61 remove_diacritics 1', 
+    columnsize='1', detail=full
+  );
+  INSERT INTO VTest (Title, Author) VALUES ('wrinkle in time', 'Bill Smith');
+
+  SELECT * FROM VTest WHERE 
+  VTest MATCH 'wrinkle in time OR a wrinkle in time' ORDER BY rank;
+} {{wrinkle in time} {Bill Smith}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 5.0 {
+  CREATE VIRTUAL TABLE ttt USING fts5(a);
+  WITH s(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<100
+  )
+  INSERT INTO ttt SELECT 'word ' || i FROM s;
+}
+
+do_execsql_test 5.1 {
+  SELECT rowid FROM ttt('word') WHERE rowid BETWEEN 30 AND 40 ORDER BY rank;
+} {30 31 32 33 34 35 36 37 38 39 40}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 6.0 {
+  CREATE VIRTUAL TABLE "My.Table" USING fts5(Text);
+
+  INSERT INTO "My.Table" VALUES ('hello this is a test');
+  INSERT INTO "My.Table" VALUES ('of trying to order by');
+  INSERT INTO "My.Table" VALUES ('rank on an fts5 table');
+  INSERT INTO "My.Table" VALUES ('that have periods in');
+  INSERT INTO "My.Table" VALUES ('the table names.');
+  INSERT INTO "My.Table" VALUES ('table table table');
+}
+do_execsql_test 6.1 {
+  SELECT * FROM "My.Table" WHERE Text MATCH 'table' ORDER BY rank;
+} {
+  {table table table} {the table names.} {rank on an fts5 table}
+}
+
+
+#-------------------------------------------------------------------------
+# forum post: https://sqlite.org/forum/forumpost/a2dd636330
+#
+reset_db
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t USING fts5 (a, b);  
+  INSERT INTO t (a, b) VALUES ('data1', 'sentence1'), ('data2', 'sentence2'); 
+  INSERT INTO t(t, rank) VALUES ('rank', 'bm25(10.0,1.0)');
+}
+
+sqlite3 db2 test.db 
+do_execsql_test -db db2 1.1 {
+  SELECT *, rank<0.0 FROM t('data*') ORDER BY RANK;
+} {data1 sentence1 1 data2 sentence2 1}
+
+do_execsql_test 1.2 {
+  INSERT INTO t(t, rank) VALUES ('rank', 'bm25(10.0,1.0)');
+}
+do_execsql_test -db db2 1.3 {
+  SELECT *, rank<0.0 FROM t('data*') ORDER BY RANK;
+} {data1 sentence1 1 data2 sentence2 1}
+db2 close
+
+finish_test
diff --git a/ext/fts5/test/fts5rebuild.test b/ext/fts5/test/fts5rebuild.test
new file mode 100644
index 0000000000000000000000000000000000000000..d74b148fb1e29adad975c38b84381ed4fa37c93b
--- /dev/null
+++ b/ext/fts5/test/fts5rebuild.test
@@ -0,0 +1,67 @@
+# 2014 Dec 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5rebuild
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+do_execsql_test 1.1 {
+  CREATE VIRTUAL TABLE f1 USING fts5(a, b);
+  INSERT INTO f1(a, b) VALUES('one',   'o n e');
+  INSERT INTO f1(a, b) VALUES('two',   't w o');
+  INSERT INTO f1(a, b) VALUES('three', 't h r e e');
+}
+
+do_execsql_test 1.2 {
+  INSERT INTO f1(f1) VALUES('integrity-check');
+} {}
+
+do_execsql_test 1.3 {
+  INSERT INTO f1(f1) VALUES('rebuild');
+} {}
+
+do_execsql_test 1.4 {
+  INSERT INTO f1(f1) VALUES('integrity-check');
+} {}
+
+sqlite3_db_config db DEFENSIVE 0
+do_execsql_test 1.5 {
+  DELETE FROM f1_data;
+} {}
+
+do_catchsql_test 1.6 {
+  INSERT INTO f1(f1) VALUES('integrity-check');
+} {1 {database disk image is malformed}}
+
+do_execsql_test 1.7 {
+  INSERT INTO f1(f1) VALUES('rebuild');
+  INSERT INTO f1(f1) VALUES('integrity-check');
+} {}
+
+
+#-------------------------------------------------------------------------
+# Check that 'rebuild' may not be used with a contentless table.
+#
+do_execsql_test 2.1 {
+  CREATE VIRTUAL TABLE nc USING fts5(doc, content=);
+}
+
+do_catchsql_test 2.2 {
+  INSERT INTO nc(nc) VALUES('rebuild');
+} {1 {'rebuild' may not be used with a contentless fts5 table}}
+finish_test
diff --git a/ext/fts5/test/fts5restart.test b/ext/fts5/test/fts5restart.test
new file mode 100644
index 0000000000000000000000000000000000000000..da58fe3aed43b5ccd9707b4b344490a590ae6676
--- /dev/null
+++ b/ext/fts5/test/fts5restart.test
@@ -0,0 +1,152 @@
+# 2015 April 28
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file focuses on testing the planner (xBestIndex function).
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5restart
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE f1 USING fts5(ff);
+}
+
+#-------------------------------------------------------------------------
+# Run the 'optimize' command. Check that it does not disturb ongoing
+# full-text queries.
+#
+unset -nocomplain lRowid
+do_test 1.1 {
+  for {set i 1} {$i < 1000} {incr i} {
+    execsql { INSERT INTO f1 VALUES('a b c d e') }
+    lappend lRowid $i
+  }
+} {}
+
+do_execsql_test 1.2 {
+  SELECT rowid FROM f1 WHERE f1 MATCH 'c';
+} $lRowid
+
+do_test 1.3 {
+  set res [list]
+  db eval { SELECT rowid FROM f1 WHERE f1 MATCH 'c' } {
+    if {$rowid == 100} {
+      execsql { INSERT INTO f1(f1) VALUES('optimize') }
+    }
+    lappend res $rowid
+  }
+  set res
+} $lRowid
+
+do_test 1.4.1 {
+  sqlite3 db2 test.db
+  set res [list]
+  db2 eval { SELECT rowid FROM f1 WHERE f1 MATCH 'c' } {
+    if {$rowid == 100} {
+      set cres [catchsql { INSERT INTO f1(f1) VALUES('optimize') }]
+    }
+    lappend res $rowid
+  }
+  set res
+} $lRowid
+
+do_test 1.4.2 {
+  db2 close
+  set cres
+} {1 {database is locked}}
+
+#-------------------------------------------------------------------------
+# Open a couple of cursors. Then close them in the same order.
+#
+do_test 2.1 {
+  set ::s1 [sqlite3_prepare db "SELECT rowid FROM f1 WHERE f1 MATCH 'b'" -1 X]
+  set ::s2 [sqlite3_prepare db "SELECT rowid FROM f1 WHERE f1 MATCH 'c'" -1 X]
+
+  sqlite3_step $::s1
+} {SQLITE_ROW}
+do_test 2.2 {
+  sqlite3_step $::s2
+} {SQLITE_ROW}
+
+do_test 2.1 {
+  sqlite3_finalize $::s1
+  sqlite3_finalize $::s2
+} {SQLITE_OK}
+
+#-------------------------------------------------------------------------
+# Copy data between two FTS5 tables.
+#
+do_execsql_test 3.1 {
+  CREATE VIRTUAL TABLE f2 USING fts5(gg);
+  INSERT INTO f2 SELECT ff FROM f1 WHERE f1 MATCH 'b+c+d';
+}
+do_execsql_test 3.2 {
+  SELECT rowid FROM f2 WHERE f2 MATCH 'a+b+c+d+e'
+} $lRowid
+
+#-------------------------------------------------------------------------
+# Remove the row that an FTS5 cursor is currently pointing to. And 
+# various other similar things. Check that this does not disturb 
+# ongoing scans.
+#
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE n4 USING fts5(n);
+  INSERT INTO n4(rowid, n) VALUES(100, '1 2 3 4 5');
+  INSERT INTO n4(rowid, n) VALUES(200, '1 2 3 4');
+  INSERT INTO n4(rowid, n) VALUES(300, '2 3 4');
+  INSERT INTO n4(rowid, n) VALUES(400, '2 3');
+  INSERT INTO n4(rowid, n) VALUES(500, '3');
+}
+
+do_test 4.1 {
+  set res [list]
+  db eval { SELECT rowid FROM n4 WHERE n4 MATCH '3' } {
+    if {$rowid==300} {
+      execsql { DELETE FROM n4 WHERE rowid=300 }
+    }
+    lappend res $rowid
+  }
+  set res
+} {100 200 300 400 500}
+
+do_test 4.2 {
+  execsql { INSERT INTO n4(rowid, n) VALUES(300, '2 3 4') }
+  set res [list]
+  db eval { SELECT rowid FROM n4 WHERE n4 MATCH '3' ORDER BY rowid DESC} {
+    if {$rowid==300} {
+      execsql { DELETE FROM n4 WHERE rowid=300 }
+    }
+    lappend res $rowid
+  }
+  set res
+} {500 400 300 200 100}
+
+do_test 4.3 {
+  execsql { INSERT INTO n4(rowid, n) VALUES(300, '2 3 4') }
+  set res [list]
+  db eval { SELECT rowid FROM n4 WHERE n4 MATCH '3' ORDER BY rowid DESC} {
+    if {$rowid==300} {
+      execsql { DELETE FROM n4  }
+    }
+    lappend res $rowid
+  }
+  set res
+} {500 400 300}
+
+
+
+finish_test
diff --git a/ext/fts5/test/fts5rowid.test b/ext/fts5/test/fts5rowid.test
new file mode 100644
index 0000000000000000000000000000000000000000..e4e4f6b844e4443b336ddaae8475a20b0b8eff25
--- /dev/null
+++ b/ext/fts5/test/fts5rowid.test
@@ -0,0 +1,219 @@
+# 2014 Dec 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests of the scalar fts5_rowid() and fts5_decode() functions.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5rowid
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+do_catchsql_test 1.1 {
+  SELECT fts5_rowid()
+} {1 {should be: fts5_rowid(subject, ....)}}
+
+do_catchsql_test 1.2 {
+  SELECT fts5_rowid('segment')
+} {1 {should be: fts5_rowid('segment', segid, pgno))}}
+
+do_execsql_test 1.3 {
+  SELECT fts5_rowid('segment', 1, 1)
+} {137438953473}
+
+do_catchsql_test 1.4 {
+  SELECT fts5_rowid('nosucharg');
+} {1 {first arg to fts5_rowid() must be 'segment'}} 
+
+
+#-------------------------------------------------------------------------
+# Tests of the fts5_decode() function.
+#
+reset_db
+do_execsql_test 2.1 { 
+  CREATE VIRTUAL TABLE x1 USING fts5(a, b);
+  INSERT INTO x1(x1, rank) VALUES('pgsz', 32);
+} {}
+
+proc rnddoc {n} {
+  set map [list 0 a  1 b  2 c  3 d  4 e  5 f  6 g  7 h  8 i  9 j]
+  set doc [list]
+  for {set i 0} {$i < $n} {incr i} {
+    lappend doc [string map $map [format %.3d [expr int(rand()*100)]]]
+  }
+  set doc
+}
+db func rnddoc rnddoc
+
+do_execsql_test 2.2 {
+  WITH r(a, b) AS (
+    SELECT rnddoc(6), rnddoc(6) UNION ALL
+    SELECT rnddoc(6), rnddoc(6) FROM r
+  )
+  INSERT INTO x1 SELECT * FROM r LIMIT 10000;
+  DELETE FROM x1 WHERE (rowid%2);
+}
+
+set res [db one {SELECT count(*) FROM x1_data}]
+do_execsql_test 2.3 {
+  SELECT count(fts5_decode(rowid, block)) FROM x1_data;
+} $res
+sqlite3_db_config db DEFENSIVE 0
+do_execsql_test 2.4 {
+  UPDATE x1_data SET block = X'';
+  SELECT count(fts5_decode(rowid, block)) FROM x1_data;
+} $res
+
+do_execsql_test 2.5 {
+  INSERT INTO x1(x1, rank) VALUES('pgsz', 1024);
+  INSERT INTO x1(x1) VALUES('rebuild');
+}
+
+set res [db one {SELECT count(*) FROM x1_data}]
+do_execsql_test 2.6 {
+  SELECT count(fts5_decode(rowid, block)) FROM x1_data;
+} $res
+
+# This is really a corruption test...
+#do_execsql_test 2.7 {
+#  UPDATE x1_data SET block = X'';
+#  SELECT count(fts5_decode(rowid, block)) FROM x1_data;
+#} $res
+
+do_execsql_test 2.8 {
+  SELECT fts5_decode(fts5_rowid('segment', 1000, 1), X'AB')
+} {corrupt}
+
+#-------------------------------------------------------------------------
+# Tests with very large tokens.
+#
+set strlist [list \
+  "[string repeat x 400]"                       \
+  "[string repeat x 300][string repeat w 100]"  \
+  "[string repeat x 300][string repeat y 100]"  \
+  "[string repeat x 300][string repeat z 600]"  \
+]
+do_test 3.0 {
+  execsql {
+    BEGIN;
+    CREATE VIRTUAL TABLE x2 USING fts5(a);
+  }
+  foreach str $strlist { execsql { INSERT INTO x2 VALUES($str) } }
+  execsql COMMIT
+} {}
+
+for {set tn 0} {$tn<[llength $strlist]} {incr tn} {
+  set str [lindex $strlist $tn]
+  do_execsql_test 3.1.$tn {
+    SELECT rowid FROM x2 WHERE x2 MATCH $str
+  } [expr $tn+1]
+}
+
+set res [db one {SELECT count(*) FROM x2_data}]
+do_execsql_test 3.2 {
+  SELECT count(fts5_decode(rowid, block)) FROM x2_data;
+} $res
+
+#-------------------------------------------------------------------------
+# Leaf pages with no terms or rowids at all.
+#
+set strlist [list \
+  "[string repeat {w } 400]"  \
+  "[string repeat {x } 400]"  \
+  "[string repeat {y } 400]"  \
+  "[string repeat {z } 400]"  \
+]
+do_test 4.0 {
+  execsql {
+    BEGIN;
+    CREATE VIRTUAL TABLE x3 USING fts5(a);
+    INSERT INTO x3(x3, rank) VALUES('pgsz', 32);
+  }
+  foreach str $strlist { execsql { INSERT INTO x3 VALUES($str) } }
+  execsql COMMIT
+} {}
+
+for {set tn 0} {$tn<[llength $strlist]} {incr tn} {
+  set str [lindex $strlist $tn]
+  do_execsql_test 4.1.$tn {
+    SELECT rowid FROM x3 WHERE x3 MATCH $str
+  } [expr $tn+1]
+}
+
+set res [db one {SELECT count(*) FROM x3_data}]
+do_execsql_test 4.2 {
+  SELECT count(fts5_decode(rowid, block)) FROM x3_data;
+} $res
+
+#-------------------------------------------------------------------------
+# Position lists with large values.
+#
+set strlist [list \
+  "[string repeat {w } 400]a"  \
+  "[string repeat {x } 400]a"  \
+  "[string repeat {y } 400]a"  \
+  "[string repeat {z } 400]a"  \
+]
+do_test 5.0 {
+  execsql {
+    BEGIN;
+    CREATE VIRTUAL TABLE x4 USING fts5(a);
+    INSERT INTO x4(x4, rank) VALUES('pgsz', 32);
+  }
+  foreach str $strlist { execsql { INSERT INTO x4 VALUES($str) } }
+  execsql COMMIT
+} {}
+
+do_execsql_test 5.1 {
+  SELECT rowid FROM x4 WHERE x4 MATCH 'a'
+} {1 2 3 4}
+
+set res [db one {SELECT count(*) FROM x4_data}]
+do_execsql_test 5.2 {
+  SELECT count(fts5_decode(rowid, block)) FROM x4_data;
+} $res
+
+#-------------------------------------------------------------------------
+#
+
+do_execsql_test 6.0 {
+  CREATE VIRTUAL TABLE x5 USING fts5(x, detail=none);
+  INSERT INTO x5(x5, rank) VALUES('pgsz', 32);
+  INSERT INTO x5 VALUES('a b c d e f');
+  INSERT INTO x5 VALUES('a b c d e f');
+  INSERT INTO x5 VALUES('a b c d e f');
+  BEGIN;
+    WITH s(i) AS (
+      SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<100
+    ) INSERT INTO x5 SELECT 'a b c d e f' FROM s;
+  COMMIT;
+  SELECT count(fts5_decode_none(rowid, block)) FROM x5_data;
+} {32}
+
+do_execsql_test 6.1 {
+  DELETE FROM x5 WHERE rowid <= 2;
+  SELECT count(fts5_decode_none(rowid, block)) FROM x5_data;
+} {34}
+
+do_execsql_test 6.2 {
+  UPDATE x5 SET x='a b c d e f' WHERE rowid=3;
+  SELECT count(fts5_decode_none(rowid, block)) FROM x5_data;
+} {36}
+
+#db eval {SELECT rowid, fts5_decode_none(rowid, block) aS r FROM x5_data} {puts $r}
+
+
+
+finish_test
diff --git a/ext/fts5/test/fts5savepoint.test b/ext/fts5/test/fts5savepoint.test
new file mode 100644
index 0000000000000000000000000000000000000000..fdb0a25ba53366499ae4dabfb3cd3b125fb03833
--- /dev/null
+++ b/ext/fts5/test/fts5savepoint.test
@@ -0,0 +1,85 @@
+# 2019 Dec 26
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5savepoint
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE ft USING fts5(c);
+  BEGIN;
+    SAVEPOINT one;
+      INSERT INTO ft VALUES('a');
+      SAVEPOINT two;
+        INSERT INTO ft VALUES('b');
+      RELEASE two;
+      SAVEPOINT four;
+        INSERT INTO ft VALUES('c');
+      RELEASE four;
+      SAVEPOINT three;
+        INSERT INTO ft VALUES('d');
+      ROLLBACK TO three;
+  COMMIT;
+  SELECT * FROM ft
+} {a b c}
+
+reset_db
+do_catchsql_test 2.0 {
+  CREATE VIRTUAL TABLE ft1 USING fts5(c);
+  CREATE VIRTUAL TABLE ft2 USING fts5(c);
+  DROP TABLE ft2_idx;
+  BEGIN;
+      INSERT INTO ft2 VALUES('a');
+      INSERT INTO ft1 VALUES('a');
+      SAVEPOINT two;
+        INSERT INTO ft1 VALUES('b');
+  COMMIT;
+} {1 {SQL logic error}}
+
+reset_db
+ifcapable fts3 {
+  do_execsql_test 3.0 {
+    CREATE VIRTUAL TABLE vt0 USING fts5(c0);
+    CREATE VIRTUAL TABLE vt1 USING fts4(c0);
+    INSERT INTO vt1(c0) VALUES(0);
+  }
+
+  do_execsql_test 3.1 {
+    BEGIN;
+      UPDATE vt1 SET c0 = 0;
+      INSERT INTO vt1(c0) VALUES (0), (0);
+      UPDATE vt0 SET c0 = 0;
+      INSERT INTO vt1(c0) VALUES (0);
+      UPDATE vt1 SET c0 = 0;
+      INSERT INTO vt1(vt1) VALUES('automerge=1');
+      UPDATE vt1 SET c0 = 0;
+  }
+
+  do_catchsql_test 3.2 {
+    DROP TABLE vt1;
+  } {0 {}}
+
+  do_execsql_test 3.3 {
+    SAVEPOINT x;
+      INSERT INTO vt0 VALUES('x');
+    COMMIT;
+    INSERT INTO vt0(vt0) VALUES('integrity-check');
+  }
+}
+
+finish_test
+
diff --git a/ext/fts5/test/fts5secure.test b/ext/fts5/test/fts5secure.test
new file mode 100644
index 0000000000000000000000000000000000000000..73149461629e276adb0510749026c7e0acc74a60
--- /dev/null
+++ b/ext/fts5/test/fts5secure.test
@@ -0,0 +1,348 @@
+# 2023 Feb 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+ifcapable !fts5 { finish_test ; return }
+set ::testprefix fts5secure
+
+proc dump {tname} {
+  execsql_pp "SELECT * FROM ${tname}_idx"
+  execsql_pp "SELECT id, quote(block), fts5_decode(id,block) FROM ${tname}_data"
+}
+
+
+do_execsql_test 0.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(ab);
+  CREATE VIRTUAL TABLE v1 USING fts5vocab('t1', 'instance');
+  INSERT INTO t1(rowid, ab) VALUES
+      (0,'abc'), (1,'abc'), (2,'abc'), (3,'abc'), (4,'def');
+}
+
+do_execsql_test 0.1 {
+  INSERT INTO t1(t1, rank) VALUES('secure-delete', 1);
+}
+
+do_execsql_test 0.2 {
+  DELETE FROM t1 WHERE rowid=2;
+}
+
+do_execsql_test 0.3 {
+  SELECT count(*) FROM t1_data
+} 3
+
+do_execsql_test 0.4 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+} 
+
+do_execsql_test 0.5 {
+  DELETE FROM t1 WHERE rowid=3;
+}
+
+do_execsql_test 0.6 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+} 
+
+do_execsql_test 0.7 {
+  DELETE FROM t1 WHERE rowid=0;
+}
+
+do_execsql_test 0.8 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+} 
+
+#----------------------------------
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t2 USING fts5(ab);
+  INSERT INTO t2(rowid, ab) VALUES (5, 'key'), (6, 'value');
+  INSERT INTO t2(t2, rank) VALUES('secure-delete', 1);
+}
+
+#execsql_pp { SELECT id, quote(block) FROM t1_data }
+#execsql_pp { SELECT segid, quote(term), pgno FROM t1_idx }
+
+do_execsql_test 1.1 {
+  DELETE FROM t2 WHERE rowid = 5;
+}
+
+do_execsql_test 1.2 {
+  INSERT INTO t2(t2) VALUES('integrity-check');
+} 
+
+do_execsql_test 1.3 {
+  DELETE FROM t2 WHERE rowid = 6;
+}
+
+do_execsql_test 1.4 {
+  INSERT INTO t2(t2) VALUES('integrity-check');
+} 
+
+do_execsql_test 1.5 {
+  SELECT * FROM t2('value');
+  SELECT * FROM t2('v*');
+} 
+
+do_execsql_test 1.6 {
+  SELECT * FROM t2('value') ORDER BY rowid DESC;
+  SELECT * FROM t2('v*') ORDER BY rowid DESC;
+} 
+execsql_pp {
+  SELECT id, quote(block) FROM t2_data;
+}
+
+#----------------------------------
+
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE ft USING fts5(ab);
+  CREATE VIRTUAL TABLE vocab USING fts5vocab('ft', 'instance');
+  INSERT INTO ft(rowid, ab) VALUES
+    (1, 'one'), 
+    (2, 'two'), 
+    (3, 'three'), 
+    (4, 'four'), 
+    (5, 'one one'), 
+    (6, 'one two'), 
+    (7, 'one three'), 
+    (8, 'one four'), 
+    (9,  'two one'),
+    (10, 'two two'),
+    (11, 'two three'),
+    (12, 'two four'),
+    (13, 'three one'), 
+    (14, 'three two'), 
+    (15, 'three three'), 
+    (16, 'three four');
+}
+
+do_execsql_test 2.1 {
+  SELECT count(*) FROM ft_data;
+} {3}
+
+do_execsql_test 2.2 {
+  INSERT INTO ft(ft, rank) VALUES('secure-delete', 1);
+}
+
+do_execsql_test 2.3 {
+  DELETE FROM ft WHERE rowid=9;
+}
+
+do_execsql_test 2.4 {
+  INSERT INTO ft(ft) VALUES('integrity-check');
+}
+
+do_execsql_test 2.5 {
+  DELETE FROM ft WHERE ab LIKE '%two%'
+}
+
+do_execsql_test 2.6 {
+  INSERT INTO ft(ft) VALUES('integrity-check');
+}
+
+do_execsql_test 2.7 {
+  SELECT count(*) FROM ft_data;
+} {3}
+
+#----------------------------------
+reset_db
+
+set ::vocab {
+  one two three four five six seven eight nine ten
+  eleven twelve thirteen fourteen fifteen sixteen 
+  seventeen eighteen nineteen twenty
+}
+proc rnddoc {} {
+  set nVocab [llength $::vocab]
+  set ret [list]
+  for {set ii 0} {$ii < 8} {incr ii} {
+    lappend ret [lindex $::vocab [expr int(abs(rand()) * $nVocab)]]
+  }
+  set ret
+}
+
+proc contains {list val} {
+  expr {[lsearch $list $val]>=0}
+}
+
+foreach {tn pgsz} {
+  2 64
+  1 1000
+} {
+  reset_db
+  db function rnddoc rnddoc
+  db function contains contains
+  
+  expr srand(1)
+
+  do_execsql_test 3.$tn.0 {
+    CREATE VIRTUAL TABLE t1 USING fts5(x);
+    INSERT INTO t1(t1, rank) VALUES('pgsz', $pgsz);
+    WITH s(i) AS (
+      VALUES(1) UNION SELECT i+1 FROM s WHERE i<20
+    )
+    INSERT INTO t1 SELECT rnddoc() FROM s;
+  }
+
+  do_execsql_test 3.$tn.1 {
+    INSERT INTO t1(t1, rank) VALUES('secure-delete', 1);
+  }
+  
+  foreach {rowid} {
+    6 16 3 4 9 14 13 7 20 15 19 10 11 2 5 18 17 1 12 8
+  } {
+
+    do_execsql_test 3.$tn.2.$rowid {
+      DELETE FROM t1 WHERE rowid=$rowid;
+    }
+    do_execsql_test 3.$tn.2.$rowid.ic {
+      INSERT INTO t1(t1) VALUES('integrity-check');
+    }
+
+    foreach v $::vocab {
+      do_execsql_test 3.$tn.2.$rowid.q.$v {
+        SELECT rowid FROM t1($v)
+      } [db eval {SELECT rowid FROM t1 WHERE contains(x, $v)}]
+
+      do_execsql_test 3.$tn.2.$rowid.q.$v.DESC {
+        SELECT rowid FROM t1($v) ORDER BY 1 DESC
+      } [db eval {SELECT rowid FROM t1 WHERE contains(x, $v) ORDER BY 1 DESC}]
+    }
+  }
+}
+
+do_execsql_test 3.3 {
+  INSERT INTO t1(x) VALUES('optimize');
+  INSERT INTO t1(t1) VALUES('optimize');
+  SELECT count(*) FROM t1_data;
+} {3}
+
+#----------------------------------
+reset_db
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x);
+  INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
+  INSERT INTO t1(t1, rank) VALUES('secure-delete', 1);
+}
+
+set L1 [string repeat abcdefghij 10]
+set L2 [string repeat 1234567890 10]
+
+do_execsql_test 4.1 {
+  INSERT INTO t1 VALUES('aa' || $L1 || ' ' || $L2);
+}
+do_execsql_test 4.2 {
+  DELETE FROM t1 WHERE rowid=1
+}
+do_execsql_test 4.3 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+}
+
+#----------------------------------
+reset_db
+do_execsql_test 5.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x);
+  INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
+  INSERT INTO t1(t1, rank) VALUES('secure-delete', 1);
+}
+
+set doc "aa [string repeat {abc } 60]"
+
+do_execsql_test 5.1 {
+  BEGIN;
+    INSERT INTO t1 VALUES($doc);
+    INSERT INTO t1 VALUES('aa abc');
+  COMMIT;
+}
+
+do_execsql_test 5.2 {
+  DELETE FROM t1 WHERE rowid = 1;
+}
+
+do_execsql_test 5.3 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+}
+
+do_execsql_test 5.4 { SELECT rowid FROM t1('abc'); } 2
+do_execsql_test 5.5 { SELECT rowid FROM t1('aa'); } 2
+
+#-------------------------------------------------------------------------
+# Tests for the bug fixed by https://sqlite.org/src/info/4b60a1c3
+#
+reset_db
+do_execsql_test 6.0 {
+  CREATE VIRTUAL TABLE fts USING fts5(content);
+  INSERT INTO fts(fts, rank) VALUES ('secure-delete', 1);
+  INSERT INTO fts(rowid, content) VALUES
+    (3407, 'profile profile profile profile profile profile profile profile pull pulling pulling really');
+  DELETE FROM fts WHERE rowid IS 3407;
+  INSERT INTO fts(fts) VALUES ('integrity-check');
+}
+
+foreach {tn detail} {
+  1 full
+  2 column
+  3 none
+} {
+  do_execsql_test 6.1.$detail "
+    DROP TABLE IF EXISTS t1;
+    CREATE VIRTUAL TABLE t1 USING fts5(x, detail=$detail);
+  "
+
+  do_execsql_test 6.2.$detail {
+    INSERT INTO t1(t1, rank) VALUES('secure-delete', 1);
+  }
+
+  for {set ii 1} {$ii < 100} {incr ii} {
+    do_execsql_test 6.3.$detail.$ii.1 {
+      BEGIN;
+        INSERT INTO t1(rowid, x) VALUES(10, 'word1');
+        WITH s(i) AS (
+          SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<CAST($ii AS integer)
+        )
+        INSERT INTO t1(x) SELECT 'word3' FROM s;
+      COMMIT;
+      INSERT INTO t1(t1) VALUES('optimize');
+    }
+
+    do_execsql_test 6.3.$detail.$ii.2 {
+      DELETE FROM t1 WHERE rowid=10;
+      INSERT INTO t1(t1) VALUES ('integrity-check');
+    }
+
+    do_execsql_test 6.3.$detail.$ii.3 {
+      DELETE FROM t1;
+    }
+
+    do_execsql_test 6.3.$detail.$ii.4 {
+      BEGIN;
+        INSERT INTO t1(rowid, x) VALUES(10, 'tokenA');
+        WITH s(i) AS (
+          SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<CAST($ii AS integer)
+        )
+        INSERT INTO t1(x) SELECT group_concat('tokenB ') FROM s;
+      COMMIT;
+      INSERT INTO t1(t1) VALUES('optimize');
+    }
+
+    do_execsql_test 6.3.$detail.$ii.5 {
+      DELETE FROM t1 WHERE rowid=10;
+      INSERT INTO t1(t1) VALUES ('integrity-check');
+    }
+
+    do_execsql_test 6.3.$detail.$ii.6 {
+      DELETE FROM t1;
+    }
+  }
+}
+
+
+finish_test
+
diff --git a/ext/fts5/test/fts5secure2.test b/ext/fts5/test/fts5secure2.test
new file mode 100644
index 0000000000000000000000000000000000000000..04ff66219ca8dccdbd78cc6806a8fe17a432a48f
--- /dev/null
+++ b/ext/fts5/test/fts5secure2.test
@@ -0,0 +1,87 @@
+# 2023 Feb 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+ifcapable !fts5 { finish_test ; return }
+set ::testprefix fts5secure2
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE ft USING fts5(col);
+  INSERT INTO ft VALUES('data for the table');
+  INSERT INTO ft VALUES('more of the same');
+  INSERT INTO ft VALUES('and extra data');
+}
+
+do_execsql_test 1.1 {
+  SELECT * FROM ft_config
+} {version 4}
+
+do_execsql_test 1.2 {
+  INSERT INTO ft(ft, rank) VALUES('secure-delete', 1);
+  SELECT * FROM ft_config;
+} {secure-delete 1 version 4}
+
+do_execsql_test 1.3 {
+  INSERT INTO ft(ft, rank) VALUES('secure-delete', 1);
+  SELECT * FROM ft_config;
+} {secure-delete 1 version 4}
+
+do_execsql_test 1.4 {
+  DELETE FROM ft WHERE rowid=2;
+  SELECT * FROM ft_config;
+} {secure-delete 1 version 5}
+
+do_execsql_test 1.5 {
+  SELECT rowid, col FROM ft('data');
+} {1 {data for the table} 3 {and extra data}}
+
+db close
+sqlite3 db test.db
+
+do_execsql_test 1.6 {
+  SELECT rowid, col FROM ft('data');
+} {1 {data for the table} 3 {and extra data}}
+
+#------------------------------------------------------------------------
+
+reset_db
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE ft USING fts5(col);
+  INSERT INTO ft VALUES('one zero one one zero');
+  INSERT INTO ft(ft, rank) VALUES('secure-delete', 1);
+}
+
+do_execsql_test 2.1 {
+  SELECT count(*) FROM ft_data WHERE block=X'00000004';
+} {0}
+
+do_execsql_test 2.2 {
+  UPDATE ft SET col = 'zero one zero zero one' WHERE rowid=1;
+}
+
+do_execsql_test 2.3 {
+  SELECT count(*) FROM ft_data WHERE block=X'00000004';
+} {1}
+
+do_execsql_test 2.4 {
+  INSERT INTO ft VALUES('one zero zero one');
+  DELETE FROM ft WHERE rowid=1;
+}
+
+do_execsql_test 2.5 {
+  SELECT count(*) FROM ft_data WHERE block=X'00000004';
+} {2}
+
+
+finish_test
+
+
diff --git a/ext/fts5/test/fts5secure3.test b/ext/fts5/test/fts5secure3.test
new file mode 100644
index 0000000000000000000000000000000000000000..49347144f3b6cd831b81ef92c6be96d0b7fc0213
--- /dev/null
+++ b/ext/fts5/test/fts5secure3.test
@@ -0,0 +1,171 @@
+# 2023 Feb 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+# TESTRUNNER: slow
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+ifcapable !fts5 { finish_test ; return }
+set ::testprefix fts5secure3
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE ft USING fts5(col);
+  INSERT INTO ft VALUES('data for the table');
+  INSERT INTO ft VALUES('more of the same');
+  INSERT INTO ft VALUES('and extra data');
+
+  INSERT INTO ft(ft, rank) VALUES('secure-delete', 1);
+}
+
+do_execsql_test 1.1 {
+  BEGIN;
+    INSERT INTO ft(rowid, col) VALUES(0, 'the next data');
+    DELETE FROM ft WHERE rowid=1;
+    DELETE FROM ft WHERE rowid=2;
+    INSERT INTO ft(rowid, col) VALUES(6, 'with some more of the same data');
+  COMMIT;
+}
+
+do_execsql_test 1.2 {
+  INSERT INTO ft(ft) VALUES('integrity-check');
+}
+
+#-------------------------------------------------------------------------
+
+reset_db
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x);
+  INSERT INTO t1(t1, rank) VALUES('pgsz', 64);
+  INSERT INTO t1(t1, rank) VALUES('secure-delete', 1);
+  BEGIN;
+    INSERT INTO t1 VALUES('the start');
+}
+do_test 2.1 {
+  for {set i 0} {$i < 1000} {incr i} {
+    execsql { INSERT INTO t1 VALUES('the ' || hex(randomblob(3))) }
+  }
+  execsql  {
+      INSERT INTO t1 VALUES('the end');
+    COMMIT;
+  }
+} {}
+
+do_execsql_test 2.2 {
+  DELETE FROM t1 WHERE rowid BETWEEN 2 AND 1000;
+}
+
+do_execsql_test 2.3 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+}
+
+do_execsql_test 2.6 {
+  INSERT INTO t1(rowid, x) VALUES(500, 'middle');
+  INSERT INTO t1(rowid, x) VALUES(501, 'value');
+  SELECT * FROM t1('the middle');
+}
+
+do_execsql_test 2.7 {
+  INSERT INTO t1(t1) VALUES('optimize');
+}
+
+do_execsql_test 2.8 {
+  SELECT count(*) FROM t1_data
+} 4
+
+#execsql_pp { SELECT id, quote(block), fts5_decode(id, block) FROM t1_data; }
+
+#-------------------------------------------------------------------------
+# Tests with large/small rowid values.
+#
+
+foreach {tn cfg} {
+  1 ""
+  2 "INSERT INTO fff(fff, rank) VALUES('secure-delete', 1)"
+} {
+  reset_db
+  
+  expr srand(0)
+  
+  set vocab {
+    Popper Poppins Popsicle Porfirio Porrima Porsche
+    Porter Portia Portland Portsmouth Portugal Portuguese
+    Poseidon Post PostgreSQL Potemkin Potomac Potsdam
+    Pottawatomie Potter Potts Pound Poussin Powell
+    PowerPC PowerPoint Powers Powhatan Poznan Prada
+    Prado Praetorian Prague Praia Prakrit Pratchett
+    Pratt Pravda Praxiteles Preakness Precambrian Preminger
+    Premyslid Prensa Prentice Pres Presbyterian Presbyterianism
+  }
+  proc newdoc {} {
+    for {set i 0} {$i<8} {incr i} {
+      lappend ret [lindex $::vocab [expr int(abs(rand()) * [llength $::vocab])]]
+    }
+    set ret
+  }
+  db func newdoc newdoc
+  
+  do_execsql_test 3.$tn.0 {
+    CREATE VIRTUAL TABLE fff USING fts5(y);
+    INSERT INTO fff(fff, rank) VALUES('pgsz', 64);
+  
+    WITH s(x) AS ( VALUES(1) UNION ALL SELECT x+1 FROM s WHERE x<1000 )
+    INSERT INTO fff(rowid, y) SELECT random() , newdoc() FROM s;
+  
+    WITH s(x) AS ( VALUES(1) UNION ALL SELECT x+1 FROM s WHERE x<1000 )
+    INSERT INTO fff(rowid, y) SELECT random() , newdoc() FROM s;
+  
+    WITH s(x) AS ( VALUES(1) UNION ALL SELECT x+1 FROM s WHERE x<1000 )
+    INSERT INTO fff(rowid, y) SELECT random() , newdoc() FROM s;
+  }
+
+  execsql $cfg
+  
+  proc lshuffle {in} {
+    set out [list]
+    while {[llength $in]>0} {
+      set idx [expr int(abs(rand()) * [llength $in])]
+      lappend out [lindex $in $idx]
+      set in [lreplace $in $idx $idx]
+    }
+    set out
+  }
+  
+  #dump fff
+  
+  set iTest 1
+  foreach ii [lshuffle [db eval {SELECT rowid FROM fff}]] {
+    #if {$iTest==1} { dump fff }
+    #if {$iTest==1} { breakpoint }
+    do_execsql_test 3.$tn.1.$iTest.$ii {
+      DELETE FROM fff WHERE rowid=$ii;
+    }
+    #if {$iTest==1} { dump fff }
+    if {($iTest % 20)==0} {
+      do_execsql_test 3.$tn.1.$iTest.$ii.ic {
+        INSERT INTO fff(fff) VALUES('integrity-check');
+      }
+    }
+    #if {$iTest==1} { break }
+    incr iTest
+  }
+}
+
+#execsql_pp { SELECT rowid FROM fff('post') ORDER BY rowid ASC }
+#breakpoint
+#execsql_pp { 
+#  SELECT rowid FROM fff('post') ORDER BY rowid DESC 
+#}
+#
+#dump fff
+
+
+finish_test
+
diff --git a/ext/fts5/test/fts5secure4.test b/ext/fts5/test/fts5secure4.test
new file mode 100644
index 0000000000000000000000000000000000000000..7588a34683fcd6c130fc5e6125ed6a4fbac2615f
--- /dev/null
+++ b/ext/fts5/test/fts5secure4.test
@@ -0,0 +1,170 @@
+# 2023 April 14
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+return_if_no_fts5
+set ::testprefix fts5secure4
+
+#-------------------------------------------------------------------------
+# Test using the 'delete' command to attempt to delete a token that 
+# is not present in the index in secure-delete mode.
+#
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, b, content=x1);
+
+  CREATE TABLE x1(rowid INTEGER PRIMARY KEY, a, b);
+  INSERT INTO x1 VALUES
+    (1, 'hello world', 'today xyz'),
+    (2, 'not the day', 'crunch crumble and chomp'),
+    (3, 'one', 'two');
+  INSERT INTO t1(t1) VALUES('rebuild');
+}
+
+do_execsql_test 1.1 {
+  INSERT INTO t1(t1, rank) VALUES('secure-delete', 1);
+}
+
+do_execsql_test 1.2 {
+  INSERT INTO t1(t1, rowid, a, b) VALUES('delete', 4, 'nosuchtoken', '');
+}
+
+do_execsql_test 1.3 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+}
+
+do_execsql_test 1.4 {
+  INSERT INTO t1(t1, rowid, a, b) VALUES('delete', 1, 'crunch', '');
+}
+
+do_execsql_test 1.5 {
+  INSERT INTO t1(t1, rowid, a, b) VALUES('delete', 3, 'crunch', '');
+}
+
+do_execsql_test 1.6 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+}
+
+do_execsql_test 1.7 {
+CREATE VIRTUAL TABLE y1 USING fts5(xx, prefix='1,2');
+INSERT INTO y1(y1, rank) VALUES('pgsz', 64);
+INSERT INTO y1(y1, rank) VALUES('secure-delete', 1);
+}
+do_execsql_test 1.8 {
+  BEGIN;
+  INSERT INTO y1(rowid, xx) VALUES(1, 'abc def');
+  INSERT INTO y1(rowid, xx) VALUES(2, 'reallyreallylongtoken');
+  COMMIT;
+}
+do_execsql_test 1.9 {
+  DELETE FROM y1 WHERE rowid=1;
+  INSERT INTO y1(y1) VALUES('integrity-check');
+}
+
+do_execsql_test 1.10 {
+  CREATE VIRTUAL TABLE w1 USING fts5(ww, content="");
+  INSERT INTO w1(rowid, ww) VALUES(123, '');
+}
+do_catchsql_test 1.11 {
+  INSERT INTO w1(w1, rowid, ww) VALUES('delete', 123, 'xyz');
+} {1 {database disk image is malformed}}
+do_catchsql_test 1.12 {
+  DROP TABLE w1;
+  CREATE VIRTUAL TABLE w1 USING fts5(ww, content="");
+  INSERT INTO w1(rowid, ww) VALUES(123, '');
+  DELETE FROM w1_data WHERE id>10;
+  INSERT INTO w1(w1, rowid, ww) VALUES('delete', 123, 'xyz');
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+# Test using secure-delete with detail=none or detail=col.
+#
+foreach {tn d} {1 full 2 none 3 column} {
+  reset_db
+  do_execsql_test 2.$tn.1 "
+    CREATE VIRTUAL TABLE x1 USING fts5(xx, yy, zz, detail=$d, prefix='10,20');
+    INSERT INTO x1(x1, rank) VALUES('pgsz', 64);
+    INSERT INTO x1(x1, rank) VALUES('secure-delete', 1);
+  "
+
+  do_execsql_test 2.$tn.2 {
+    BEGIN;
+      INSERT INTO x1(xx, yy, zz) VALUES('a b c', 'd e f', 'a b c');
+      INSERT INTO x1(xx, yy, zz) VALUES('a b c', 'd e f', 'a b c');
+      INSERT INTO x1(xx, yy, zz) VALUES('a b c', 'd e f', 'a b c');
+      INSERT INTO x1(xx, yy, zz) VALUES('a b c', 'd e f', 'a b c');
+      INSERT INTO x1(xx, yy, zz) VALUES('a b c', 'd e f', 'a b c');
+    COMMIT;
+    INSERT INTO x1(x1) VALUES('integrity-check');
+  }
+
+  do_execsql_test 2.$tn.3 {
+    DELETE FROM x1 WHERE rowid IN (2, 4, 6);
+    INSERT INTO x1(x1) VALUES('integrity-check');
+  }
+
+  do_execsql_test 2.$tn.4 {
+    DELETE FROM x1 WHERE rowid IN (1, 3, 5);
+    INSERT INTO x1(x1) VALUES('integrity-check');
+  }
+
+  do_execsql_test 2.$tn.5 {
+    WITH s(i) AS (
+      SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<100
+    )
+    INSERT INTO x1 
+      SELECT 'seems to be', 'used brew to', 'everything is working' FROM s
+        UNION ALL
+      SELECT 'used brew to', 'everything is working', 'seems to be' FROM s
+        UNION ALL
+      SELECT 'everything is working', 'seems to be', 'used brew to' FROM s
+        UNION ALL
+      SELECT 'abc', 'zzz', 'a b c d'
+        UNION ALL
+      SELECT 'z', 'z', 'z' FROM s
+  }
+
+  do_test 2.$tn.6 {
+    for {set i 300} {$i > 200} {incr i -1} {
+      execsql {
+        DELETE FROM x1 WHERE rowid=$i;
+        INSERT INTO x1(x1) VALUES('integrity-check');
+      }
+    }
+  } {}
+
+  do_test 2.$tn.7 {
+    for {set i 1} {$i < 100} {incr i} {
+      execsql {
+        DELETE FROM x1 WHERE rowid=$i;
+        INSERT INTO x1(x1) VALUES('integrity-check');
+      }
+    }
+  } {}
+
+  do_test 2.$tn.8 {
+    foreach i [db eval {SELECT rowid FROM x1}] {
+      execsql {
+        DELETE FROM x1 WHERE rowid=$i;
+        INSERT INTO x1(x1) VALUES('integrity-check');
+      }
+    }
+  } {}
+
+  do_execsql_test 2.$tn.9 {
+    SELECT * FROM x1
+  } {}
+}
+
+
+
+finish_test
+
diff --git a/ext/fts5/test/fts5secure5.test b/ext/fts5/test/fts5secure5.test
new file mode 100644
index 0000000000000000000000000000000000000000..ca8570211cb62bc9730f59dfa150b04624c17abf
--- /dev/null
+++ b/ext/fts5/test/fts5secure5.test
@@ -0,0 +1,129 @@
+# 2023 April 14
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+return_if_no_fts5
+set ::testprefix fts5secure5
+return_if_no_fts5
+
+proc dump {} {
+  execsql_pp {
+    SELECT id, quote(block), fts5_decode_none(id, block) FROM ft1_data
+  }
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE ft1 USING fts5(a, detail=none);
+  INSERT INTO ft1(ft1, rank) VALUES('secure-delete', 1);
+}
+
+do_execsql_test 1.1 {
+  BEGIN;
+    INSERT INTO ft1(rowid, a) VALUES(1, 'abcd');
+    INSERT INTO ft1(rowid, a) VALUES(2, 'abcd');
+    INSERT INTO ft1(rowid, a) VALUES(3, 'abcd');
+  COMMIT;
+}
+do_execsql_test 1.2 {
+  DELETE FROM ft1 WHERE rowid=1;
+}
+do_execsql_test 1.3 {
+  INSERT INTO ft1(ft1) VALUES('integrity-check');
+}
+do_execsql_test 1.4 {
+  DELETE FROM ft1 WHERE rowid=3;
+}
+do_execsql_test 1.5 {
+  INSERT INTO ft1(ft1) VALUES('integrity-check');
+}
+do_execsql_test 1.6 {
+  DELETE FROM ft1 WHERE rowid=3;
+}
+do_execsql_test 1.7 {
+  INSERT INTO ft1(ft1) VALUES('integrity-check');
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE ft1 USING fts5(a, detail=none);
+  INSERT INTO ft1(ft1, rank) VALUES('secure-delete', 1);
+}
+
+do_execsql_test 2.1 {
+  BEGIN;
+    INSERT INTO ft1(rowid, a) VALUES(1, 'abcd one');
+    INSERT INTO ft1(rowid, a) VALUES(2, 'abcd two');
+    INSERT INTO ft1(rowid, a) VALUES(3, 'abcd two');
+    INSERT INTO ft1(rowid, a) VALUES(4, 'abcd two');
+    INSERT INTO ft1(rowid, a) VALUES(5, 'abcd three');
+  COMMIT;
+}
+
+do_execsql_test 2.2a {
+  DELETE FROM ft1 WHERE rowid=3;
+}
+do_execsql_test 2.2b {
+  INSERT INTO ft1(ft1) VALUES('integrity-check');
+}
+do_execsql_test 2.3a {
+  DELETE FROM ft1 WHERE rowid=2;
+}
+do_execsql_test 2.3b {
+  INSERT INTO ft1(ft1) VALUES('integrity-check');
+}
+do_execsql_test 2.4a {
+  DELETE FROM ft1 WHERE rowid=4;
+}
+do_execsql_test 2.4b {
+  INSERT INTO ft1(ft1) VALUES('integrity-check');
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE ft1 USING fts5(a, detail=none, prefix=1);
+  INSERT INTO ft1(ft1, rank) VALUES('secure-delete', 1);
+  INSERT INTO ft1(ft1, rank) VALUES('pgsz', 64);
+}
+do_execsql_test 3.1 {
+  BEGIN;
+    INSERT INTO ft1(a) VALUES('c');
+  COMMIT;
+}
+do_execsql_test 3.2 {
+  DELETE FROM ft1 WHERE rowid IN (1);
+  INSERT INTO ft1(ft1) VALUES('integrity-check');
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE ft1 USING fts5(a, detail=none);
+  INSERT INTO ft1(ft1, rank) VALUES('secure-delete', 1);
+  INSERT INTO ft1(ft1, rank) VALUES('pgsz', 64);
+
+  WITH s(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<500
+  )
+  INSERT INTO ft1 SELECT 'abcdefg' FROM s;
+}
+
+do_test 4.1 {
+  for {set i 500} {$i > 0} {incr i -1} {
+    execsql { DELETE FROM ft1 WHERE rowid=$i }
+    execsql { INSERT INTO ft1(ft1) VALUES('integrity-check') }
+  }
+} {}
+
+finish_test
+
diff --git a/ext/fts5/test/fts5secure6.test b/ext/fts5/test/fts5secure6.test
new file mode 100644
index 0000000000000000000000000000000000000000..e2f4ceabc8d5bf0778745d7b1015f56e8a98dc3e
--- /dev/null
+++ b/ext/fts5/test/fts5secure6.test
@@ -0,0 +1,141 @@
+# 2023 Feb 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+ifcapable !fts5 { finish_test ; return }
+set ::testprefix fts5secure6
+
+db progress 1 progress_handler
+set ::PHC 0
+proc progress_handler {args} {
+  incr ::PHC
+  # if {($::PHC % 100000)==0}  breakpoint
+  return 0
+}
+
+proc setup {} {
+  db eval {
+    DROP TABLE IF EXISTS t1;
+    CREATE VIRTUAL TABLE t1 USING fts5(x);
+    WITH s(i) AS (
+      VALUES(1) UNION ALL SELECT i+1 FROM s WHERE i<1000
+    )
+    INSERT INTO t1 SELECT 'a b c d e f g h i j k' FROM s;
+  }
+}
+
+foreach {tn sd} {
+  1 0 
+  2 1
+} {
+  setup
+  do_execsql_test 1.$tn.0 { 
+    INSERT INTO t1(t1, rank) VALUES('secure-delete', $sd) 
+  }
+  set PHC 0
+  do_execsql_test 1.$tn.1 { DELETE FROM t1; }
+  set phc($tn) $PHC
+}
+
+do_test 1.3 {
+  expr $phc(1)*5 < $phc(2)
+} {1}
+
+#-------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x);
+  INSERT INTO t1(t1, rank) VALUES('secure-delete', $sd) 
+}
+
+do_execsql_test 2.1 {
+  BEGIN;
+    INSERT INTO t1(rowid, x) VALUES(-100000, 'abc def ghi');
+    INSERT INTO t1(rowid, x) VALUES(-99999, 'abc def ghi');
+    INSERT INTO t1(rowid, x) VALUES(9223372036854775800, 'abc def ghi');
+  COMMIT;
+}
+
+do_execsql_test 2.2 {
+  SELECT rowid FROM t1('def')
+} {-100000 -99999 9223372036854775800}
+
+#-------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x);
+  INSERT INTO t1(t1, rank) VALUES('secure-delete', $sd) 
+}
+
+do_execsql_test 3.1 {
+  BEGIN;
+    INSERT INTO t1(rowid, x) 
+      VALUES(51869, 'when whenever where weress what turn'), 
+            (51871, 'to were');
+  COMMIT;
+}
+
+do_execsql_test 3.2 {
+  DELETE FROM t1 WHERE rowid=51871;
+  INSERT INTO t1(t1) VALUES('integrity-check');
+}
+
+#-------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x);
+  INSERT INTO t1(rowid, x) VALUES(10, 'one two');
+}
+do_execsql_test 4.1 {
+  UPDATE t1 SET x = 'one three' WHERE rowid=10;
+  INSERT INTO t1(t1, rank) VALUES('secure-delete', 1);
+}
+do_execsql_test 4.2 {
+  DELETE FROM t1 WHERE rowid=10;
+}
+do_execsql_test 4.3 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+}
+
+#-------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 5.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(content);
+
+  INSERT INTO t1(t1,rank) VALUES('secure-delete',1);
+  INSERT INTO t1 VALUES('active'),('boomer'),('atom'),('atomic'),
+         ('alpha channel backup abandon test aback boomer atom alpha active');
+  DELETE FROM t1 WHERE t1 MATCH 'abandon';
+} 
+
+do_execsql_test 5.1 {
+  INSERT INTO t1(t1) VALUES('rebuild');
+}
+
+do_execsql_test 5.2 {
+  DELETE FROM t1 WHERE rowid NOTNULL<5;
+}
+
+db close
+sqlite3 db test.db
+
+do_execsql_test 5.3 {
+  PRAGMA integrity_check;
+} {ok}
+
+
+finish_test
+
diff --git a/ext/fts5/test/fts5secure7.test b/ext/fts5/test/fts5secure7.test
new file mode 100644
index 0000000000000000000000000000000000000000..16a044f5389005a4c10f8513cc4340469abdcc6e
--- /dev/null
+++ b/ext/fts5/test/fts5secure7.test
@@ -0,0 +1,116 @@
+# 2023 Feb 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+# TESTRUNNER: slow
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+ifcapable !fts5 { finish_test ; return }
+set ::testprefix fts5secure7
+
+
+set NVOCAB 500
+set NDOC [expr 1000]
+
+set NREP 100
+set nDeletePerRep [expr 5]
+
+set VOCAB [list]
+
+proc select_one {list} {
+  set n [llength $list]
+  lindex $list [expr {abs(int(rand()*$n))}]
+}
+
+proc init_vocab {} {
+  set L [split "abcdefghijklmnopqrstuvwxyz" {}]
+  set nL [llength $L]
+  for {set i 0} {$i < $::NVOCAB} {incr i} {
+    set n [expr {6 + int(rand()*8)}]
+    set word ""
+    for {set j 0} {$j < $n} {incr j} {
+      append word [select_one $L]
+    }
+    lappend ::VOCAB $word
+  }
+}
+
+proc get_word {} {
+  select_one $::VOCAB
+}
+
+proc get_document {nWord} {
+  set ret [list]
+  for {set i 0} {$i < $nWord} {incr i} {
+    lappend ret [get_word]
+  }
+  return $ret
+}
+
+init_vocab
+
+db func document [list get_document 12]
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(body);
+  INSERT INTO t1(t1, rank) VALUES('secure-delete', 1);
+}
+do_execsql_test 1.1 {
+  WITH s(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<$NDOC
+  )
+  INSERT INTO t1 SELECT document() FROM s;
+}
+
+for {set iRep 0} {$iRep < $NREP} {incr iRep} {
+  set lRowid [db eval {SELECT rowid FROM t1}]
+  for {set iDel 0} {$iDel < $nDeletePerRep} {incr iDel} {
+    set idx [select_one $lRowid]
+    db eval {
+      DELETE FROM t1 WHERE rowid=$idx
+    }
+  }
+  db eval {
+    WITH s(i) AS (
+      SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<$nDeletePerRep
+    )
+    INSERT INTO t1 SELECT document() FROM s;
+  }
+  do_execsql_test 1.2.$iRep {
+    INSERT INTO t1(t1) VALUES('integrity-check');
+  }
+}
+
+reset_db
+db func document [list get_document 12]
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(body);
+  INSERT INTO t1(t1, rank) VALUES('secure-delete', 1);
+  INSERT INTO t1(t1, rank) VALUES('pgsz', 128);
+}
+do_execsql_test 2.1 {
+  WITH s(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<$NDOC
+  )
+  INSERT INTO t1 SELECT document() FROM s;
+}
+for {set ii 0} {$ii < $NDOC} {incr ii} {
+  set lRowid [db eval {SELECT rowid FROM t1}]
+  set idx [select_one $lRowid]
+  db eval { DELETE FROM t1 WHERE rowid=$idx }
+  do_execsql_test 2.2.$ii {
+    INSERT INTO t1(t1) VALUES('integrity-check');
+  }
+}
+
+finish_test
+
+
diff --git a/ext/fts5/test/fts5secure8.test b/ext/fts5/test/fts5secure8.test
new file mode 100644
index 0000000000000000000000000000000000000000..8b65b7c59f478e50b1f87fbf496ba13ae4e2fd53
--- /dev/null
+++ b/ext/fts5/test/fts5secure8.test
@@ -0,0 +1,71 @@
+# 2023 Nov 23
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+ifcapable !fts5 { finish_test ; return }
+set ::testprefix fts5secure8
+
+proc sql_repeat {txt n} {
+  string repeat $txt $n
+}
+db func repeat sql_repeat
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE ft USING fts5(x);
+
+  INSERT INTO ft(ft, rank) VALUES('pgsz', 64);
+
+  INSERT INTO ft(rowid, x) VALUES(100, 'hello world');
+  INSERT INTO ft(rowid, x) VALUES(200, 'one day');
+
+  BEGIN;
+    INSERT INTO ft(rowid, x) VALUES(45, 'one two three');
+    UPDATE ft SET x = repeat('hello world ', 500) WHERE rowid=100;
+  COMMIT
+}
+
+do_execsql_test 1.1 {
+  INSERT INTO ft(ft, rank) VALUES('secure-delete', 1);
+  DELETE FROM ft WHERE rowid=100;
+}
+
+do_execsql_test 1.2 {
+  PRAGMA integrity_check;
+} {ok}
+
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE xyz USING fts5 (
+  	name,
+        content=''
+  );
+
+  INSERT INTO xyz(xyz, rank) VALUES('secure-delete', 1);
+  INSERT INTO xyz (rowid, name) VALUES(1, 'A');
+  INSERT INTO xyz (rowid, name) VALUES(2, 'A');
+  INSERT INTO xyz(xyz, rowid, name) VALUES('delete', 2, 'A');
+}
+
+do_execsql_test 2.1 {
+  pragma quick_check;
+} {ok}
+
+do_catchsql_test 2.2 {
+  INSERT INTO xyz(xyz, rank) VALUES('secure-delete', 'hello world');
+} {1 {SQL logic error}}
+
+
+
+
+
+finish_test
+
+
diff --git a/ext/fts5/test/fts5securefault.test b/ext/fts5/test/fts5securefault.test
new file mode 100644
index 0000000000000000000000000000000000000000..2959ab65ce89bb25f3d577196ed2dd89ace7df1e
--- /dev/null
+++ b/ext/fts5/test/fts5securefault.test
@@ -0,0 +1,225 @@
+# 2023 April 14
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS5 module.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+source $testdir/malloc_common.tcl
+set testprefix fts5securefault
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+return_if_no_fts5
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(ab);
+  INSERT INTO t1(rowid, ab) VALUES
+      (0, 'abc'), (1, 'abc'), (2, 'abc'), (3, 'abc'), (4, 'def');
+}
+faultsim_save_and_close
+
+do_faultsim_test 1.1 -faults oom* -prep {
+  faultsim_restore_and_reopen
+  execsql {
+    INSERT INTO t1(t1, rank) VALUES('secure-delete', 1);
+  }
+} -body {
+  execsql { DELETE FROM t1 WHERE rowid=2 }
+} -test {
+  faultsim_test_result {0 {}}
+}
+do_faultsim_test 1.2 -faults oom* -prep {
+  faultsim_restore_and_reopen
+  execsql {
+    INSERT INTO t1(t1, rank) VALUES('secure-delete', 1);
+  }
+} -body {
+  execsql { DELETE FROM t1 WHERE rowid IN(0, 1, 2, 3, 4) }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+set big  [string repeat abcdefghij 5]
+set big2 [string repeat klmnopqrst 5]
+set doc "$big $big2"
+
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(ab);
+  INSERT INTO t1(t1, rank) VALUES('pgsz', 64);
+  WITH s(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<4
+  )
+  INSERT INTO t1(rowid, ab) SELECT i, $doc FROM s;
+}
+faultsim_save_and_close
+
+do_faultsim_test 2.1 -faults oom* -prep {
+  faultsim_restore_and_reopen
+  execsql {
+    INSERT INTO t1(t1, rank) VALUES('secure-delete', 1);
+  }
+} -body {
+  execsql { DELETE FROM t1 WHERE rowid = 3 }
+  execsql { DELETE FROM t1 WHERE rowid = 4 }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+set big  [string repeat abcdefghij 5]
+set big2 [string repeat klmnopqrst 5]
+set doc "$big $big2"
+
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(ab);
+  INSERT INTO t1(t1, rank) VALUES('pgsz', 64);
+  WITH s(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<25
+  )
+  INSERT INTO t1(rowid, ab) SELECT i, $doc FROM s;
+
+  INSERT INTO t1(t1, rank) VALUES('secure-delete', 1);
+  DELETE FROM t1 WHERE rowid BETWEEN 3 AND 23;
+}
+faultsim_save_and_close
+
+do_faultsim_test 3.1 -faults oom* -prep {
+  faultsim_restore_and_reopen
+  execsql {
+    INSERT INTO t1(t1, rank) VALUES('secure-delete', 1);
+  }
+} -body {
+  execsql { DELETE FROM t1 WHERE rowid = 24 }
+  execsql { DELETE FROM t1 WHERE rowid = 25 }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+set doc [string repeat "tok " 400]
+
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(ab);
+  INSERT INTO t1(t1, rank) VALUES('pgsz', 64);
+  INSERT INTO t1(rowid, ab) VALUES(1, $doc), (2, $doc), (3, $doc);
+}
+faultsim_save_and_close
+
+do_faultsim_test 4.1 -faults oom* -prep {
+  faultsim_restore_and_reopen
+  execsql {
+    INSERT INTO t1(t1, rank) VALUES('secure-delete', 1);
+  }
+} -body {
+  execsql { DELETE FROM t1 WHERE rowid = 2 }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+
+set doc1 [string repeat "abc " 10]
+set doc2 [string repeat "def " 10]
+
+do_test 5.0 {
+  execsql {
+    CREATE VIRTUAL TABLE t1 USING fts5(ab);
+    INSERT INTO t1(t1, rank) VALUES('pgsz', 64);
+    BEGIN;
+  }
+  for {set i 0} {$i < 50} {incr i} {
+    execsql {
+      INSERT INTO t1(rowid, ab) VALUES($i, 'abcdefg');
+    }
+  }
+  execsql {
+    INSERT INTO t1(rowid, ab) VALUES(105, 'def');
+    COMMIT;
+  }
+} {}
+faultsim_save_and_close
+
+do_faultsim_test 5.1 -faults oom* -prep {
+  faultsim_restore_and_reopen
+  execsql {
+    INSERT INTO t1(t1, rank) VALUES('secure-delete', 1);
+  }
+} -body {
+  execsql { DELETE FROM t1 WHERE rowid = 105 }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_test 6.0 {
+  execsql {
+    CREATE VIRTUAL TABLE t1 USING fts5(ab);
+    INSERT INTO t1(t1, rank) VALUES('pgsz', 64);
+    BEGIN;
+      INSERT INTO t1(rowid, ab) VALUES(1, 'abcdefg');
+      INSERT INTO t1(rowid, ab) VALUES(2, 'abcdefg');
+      INSERT INTO t1(rowid, ab) VALUES(3, 'abcdefg');
+    COMMIT;
+  }
+} {}
+faultsim_save_and_close
+
+do_faultsim_test 6.1 -faults oom* -prep {
+  faultsim_restore_and_reopen
+  execsql {
+    INSERT INTO t1(t1, rank) VALUES('secure-delete', 1);
+  }
+} -body {
+  execsql { 
+    UPDATE t1 SET ab='abcdefg' WHERE rowid=2;
+  }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_test 7.0 {
+  execsql {
+    CREATE VIRTUAL TABLE t1 USING fts5(ab);
+    INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
+    INSERT INTO t1(t1, rank) VALUES('secure-delete', 1);
+  }
+} {}
+faultsim_save_and_close
+
+do_faultsim_test 7.1 -faults oom* -prep {
+  faultsim_restore_and_reopen
+  set big1 "[string repeat x 50] [string repeat y 50] [string repeat z 50]"
+  execsql {
+    BEGIN;
+      INSERT INTO t1 VALUES($big1);
+  }
+} -body {
+  execsql { COMMIT }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+
+finish_test
diff --git a/ext/fts5/test/fts5simple.test b/ext/fts5/test/fts5simple.test
new file mode 100644
index 0000000000000000000000000000000000000000..ad59bf0d9e660c4e13663ef35a47010eda21eae7
--- /dev/null
+++ b/ext/fts5/test/fts5simple.test
@@ -0,0 +1,512 @@
+# 2015 September 05
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5simple
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+if 1 {
+
+#-------------------------------------------------------------------------
+#
+set doc "x x [string repeat {y } 50]z z"
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x);
+  INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
+  BEGIN;
+    INSERT INTO t1 VALUES($doc);
+  COMMIT;
+}
+
+do_execsql_test 1.1 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x);
+  INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
+  INSERT INTO t1 VALUES('a b c');
+  INSERT INTO t1 VALUES('d e f');
+  INSERT INTO t1(t1) VALUES('optimize');
+}
+
+do_execsql_test 2.1 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+} {}
+
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x, prefix='1,2');
+  INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
+  BEGIN;
+  INSERT INTO t1 VALUES('one');
+  SELECT * FROM t1 WHERE t1 MATCH 'o*';
+} {one}
+
+do_execsql_test 3.1 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+} {}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 4.1 {
+  CREATE VIRTUAL TABLE t11 USING fts5(content);
+  INSERT INTO t11(t11, rank) VALUES('pgsz', 32);
+  INSERT INTO t11 VALUES('another');
+  INSERT INTO t11 VALUES('string');
+  INSERT INTO t11 VALUES('of');
+  INSERT INTO t11 VALUES('text');
+}
+do_test 4.2 {
+  execsql { INSERT INTO t11(t11) VALUES('optimize') }
+} {}
+do_execsql_test 4.3 {
+  INSERT INTO t11(t11) VALUES('integrity-check');
+} {}
+
+#db eval { SELECT fts5_decode(rowid, block) as x FROM t11_data } { puts $x }
+
+#-------------------------------------------------------------------------
+reset_db
+set doc [string repeat "x y " 5]
+do_execsql_test 5.1 {
+  CREATE VIRTUAL TABLE yy USING fts5(content);
+  INSERT INTO yy(yy, rank) VALUES('pgsz', 32);
+  BEGIN;
+    INSERT INTO yy VALUES($doc);
+    INSERT INTO yy VALUES($doc);
+    INSERT INTO yy VALUES($doc);
+    INSERT INTO yy VALUES($doc);
+    INSERT INTO yy VALUES($doc);
+    INSERT INTO yy VALUES($doc);
+    INSERT INTO yy VALUES($doc);
+    INSERT INTO yy VALUES($doc);
+  COMMIT;
+}
+
+do_execsql_test 5.2 {
+  SELECT rowid FROM yy WHERE yy MATCH 'y' ORDER BY rowid ASC
+} {1 2 3 4 5 6 7 8}
+
+do_execsql_test 5.3 {
+  SELECT rowid FROM yy WHERE yy MATCH 'y' ORDER BY rowid DESC
+} {8 7 6 5 4 3 2 1}
+
+#db eval { SELECT fts5_decode(rowid, block) as x FROM yy_data } { puts $x }
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 5.1 {
+  CREATE VIRTUAL TABLE tt USING fts5(content);
+  INSERT INTO tt(tt, rank) VALUES('pgsz', 32);
+  INSERT INTO tt VALUES('aa');
+}
+
+do_execsql_test 5.2 {
+  SELECT rowid FROM tt WHERE tt MATCH 'a*';
+} {1}
+
+do_execsql_test 5.3 {
+  DELETE FROM tt;
+  BEGIN;
+    INSERT INTO tt VALUES('aa');
+    INSERT INTO tt VALUES('ab');
+  COMMIT;
+} {}
+
+do_execsql_test 5.4 {
+  SELECT rowid FROM tt WHERE tt MATCH 'a*';
+} {1 2}
+
+do_execsql_test 5.5 {
+  DELETE FROM tt;
+  BEGIN;
+    INSERT INTO tt VALUES('aa');
+    INSERT INTO tt VALUES('ab');
+    INSERT INTO tt VALUES('aa');
+    INSERT INTO tt VALUES('ab');
+    INSERT INTO tt VALUES('aa');
+    INSERT INTO tt VALUES('ab');
+    INSERT INTO tt VALUES('aa');
+    INSERT INTO tt VALUES('ab');
+  COMMIT;
+  SELECT rowid FROM tt WHERE tt MATCH 'a*';
+} {1 2 3 4 5 6 7 8}
+
+do_execsql_test 5.6 {
+  INSERT INTO tt(tt) VALUES('integrity-check');
+}
+
+reset_db
+do_execsql_test 5.7 {
+  CREATE VIRTUAL TABLE tt USING fts5(content);
+  INSERT INTO tt(tt, rank) VALUES('pgsz', 32);
+  INSERT INTO tt VALUES('aa ab ac ad ae af');
+}
+
+do_execsql_test 5.8 {
+  SELECT rowid FROM tt WHERE tt MATCH 'a*';
+} {1}
+
+#-------------------------------------------------------------------------
+
+reset_db
+do_execsql_test 6.1 {
+  CREATE VIRTUAL TABLE xyz USING fts5(x, y, z);
+  INSERT INTO xyz VALUES('x', 'y', 'z');
+}
+
+do_catchsql_test 6.2 { 
+  SELECT * FROM xyz WHERE xyz MATCH '' 
+} {1 {fts5: syntax error near ""}}
+do_catchsql_test 6.3 { 
+  SELECT * FROM xyz WHERE xyz MATCH NULL 
+} {1 {fts5: syntax error near ""}}
+
+#-------------------------------------------------------------------------
+
+do_execsql_test 7.1 {
+  CREATE VIRTUAL TABLE ft2 USING fts5(content);
+  INSERT INTO ft2(rowid, content) VALUES(1, 'a b c');
+  INSERT INTO ft2(rowid, content) VALUES(2, 'a b d');
+} 
+
+do_catchsql_test 7.2 {
+  BEGIN;
+    UPDATE ft2 SET rowid=2 WHERE rowid=1;
+} {1 {constraint failed}} 
+
+do_execsql_test 7.3 {
+  COMMIT;
+  INSERT INTO ft2(ft2) VALUES('integrity-check');
+} {}
+
+do_execsql_test 7.4 {
+  SELECT * FROM ft2;
+} {{a b c} {a b d}}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 8.1 {
+  CREATE VIRTUAL TABLE ft2 USING fts5(content);
+  INSERT INTO ft2(rowid, content) VALUES(1, 'a b');
+}
+
+do_execsql_test 8.2 {
+  BEGIN;
+    INSERT INTO ft2(rowid, content) VALUES(4, 'a x');
+}
+
+do_execsql_test 8.3 {
+  INSERT INTO ft2(ft2) VALUES('integrity-check');
+}
+
+#-------------------------------------------------------------------------
+# Check that the "table function" syntax works.
+#
+reset_db
+do_execsql_test 9.1 {
+  CREATE VIRTUAL TABLE ft2 USING fts5(content);
+  INSERT INTO ft2(rowid, content) VALUES(1, 'a b');
+  INSERT INTO ft2(rowid, content) VALUES(2, 'a b c d');
+  INSERT INTO ft2(rowid, content) VALUES(3, 'c d e f');
+}
+
+do_execsql_test 9.2 {
+  SELECT rowid FROM ft2('a');
+} {1 2}
+
+do_execsql_test 9.3 {
+  SELECT rowid FROM ft2('b AND c');
+} {2}
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test 10.0 {
+  CREATE VIRTUAL TABLE t3 USING fts5(a, b, c);
+  INSERT INTO t3 VALUES('bac aab bab', 'c bac c', 'acb aba abb'); -- 1
+  INSERT INTO t3 VALUES('bab abc c', 'acb c abb', 'c aaa c');     -- 2
+}
+
+do_execsql_test 10.1 {
+  SELECT rowid FROM t3('c: c*');
+} {2}
+
+do_execsql_test 10.2 {
+  SELECT rowid FROM t3('b: acb');
+} {2}
+
+#-------------------------------------------------------------------------
+# Test that character 0x1A is allowed in fts5 barewords.
+#
+do_test 11.0 {
+  execsql "CREATE VIRTUAL TABLE t4 USING fts5(x, tokenize=\"ascii tokenchars '\x1A'\")"
+  execsql "
+    INSERT INTO t4 VALUES('a b c \x1A');
+    INSERT INTO t4 VALUES('a b c d\x1A');
+    INSERT INTO t4 VALUES('a b c \x1Ag');
+    INSERT INTO t4 VALUES('a b c d');
+  "
+} {}
+
+do_test 11.1 {
+  execsql "SELECT rowid FROM t4('\x1A')"
+} {1}
+do_test 11.2 {
+  execsql "SELECT rowid FROM t4('\x1A*')"
+} {1 3}
+do_test 11.3 {
+  execsql "SELECT rowid FROM t4('d\x1A')"
+} {2}
+
+do_test 11.4 {
+  catchsql "SELECT rowid FROM t4('d\x1B')"
+} {/fts5: syntax error/}
+do_test 11.5 {
+  catchsql "SELECT rowid FROM t4('d\x19')"
+} {/fts5: syntax error/}
+
+#-------------------------------------------------------------------------
+#
+do_test 12.1 {
+  execsql {
+    CREATE VIRTUAL TABLE xx USING fts5(x,y);
+    BEGIN;
+      INSERT INTO xx VALUES('1 2 3', 'a b c');
+  }
+} {}
+
+do_execsql_test 12.2 {
+  SELECT rowid FROM xx('x:a');
+  COMMIT;
+} {}
+
+#-------------------------------------------------------------------------
+# Try an UPDATE OR REPLACE query.
+#
+do_execsql_test 13.1 {
+  CREATE VIRTUAL TABLE xy USING fts5(x);
+  INSERT INTO xy(rowid, x) VALUES(1, '1 2 3');
+  INSERT INTO xy(rowid, x) VALUES(2, '2 3 4');
+  INSERT INTO xy(rowid, x) VALUES(3, '3 4 5');
+}
+
+do_execsql_test 13.2 {
+  UPDATE OR REPLACE xy SET rowid=3 WHERE rowid = 2;
+  SELECT rowid, x FROM xy;
+} {
+  1 {1 2 3}
+  3 {2 3 4}
+}
+
+do_execsql_test 13.3 {
+  INSERT INTO xy(xy) VALUES('integrity-check');
+}
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test 14.1 {
+  CREATE VIRTUAL TABLE ttt USING fts5(x);
+  BEGIN;
+    INSERT INTO ttt(rowid, x) VALUES(1, 'a b c');
+    INSERT INTO ttt(rowid, x) VALUES(2, 'a b c');
+    INSERT INTO ttt(rowid, x) VALUES(3, 'a b c');
+  COMMIT;
+}
+do_test 14.2 { 
+  fts5_level_segs ttt 
+} {1}
+
+#-------------------------------------------------------------------------
+db func rnddoc fts5_rnddoc
+do_execsql_test 14.3 {
+  CREATE VIRTUAL TABLE x1 USING fts5(x);
+  INSERT INTO x1(x1, rank) VALUES('pgsz', 32);
+
+  WITH ii(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM ii WHERE i<10 )
+  INSERT INTO x1 SELECT rnddoc(5) FROM ii;
+}
+
+do_execsql_test 14.4 {
+  SELECT rowid, x, x1 FROM x1 WHERE x1 MATCH '*reads'
+} {0 {} 2}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 15.0 {
+  CREATE VIRTUAL TABLE x2 USING fts5(x, prefix=1);
+  INSERT INTO x2 VALUES('ab');
+}
+
+do_execsql_test 15.1 {
+  INSERT INTO x2(x2) VALUES('integrity-check');
+}
+
+#-------------------------------------------------------------------------
+foreach_detail_mode $testprefix {
+  reset_db
+  fts5_aux_test_functions db
+  do_execsql_test 16.0 {
+    CREATE VIRTUAL TABLE x3 USING fts5(x, detail=%DETAIL%);
+    INSERT INTO x3 VALUES('a b c d e f');
+  }
+  do_execsql_test 16.1 {
+    SELECT fts5_test_poslist(x3) FROM x3('(a NOT b) OR c');
+  } {2.0.2}
+
+  do_execsql_test 16.1 {
+    SELECT fts5_test_poslist(x3) FROM x3('a OR c');
+  } {{0.0.0 1.0.2}}
+}
+
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 17.0 {
+  CREATE VIRTUAL TABLE x3 USING fts5(x);
+  INSERT INTO x3 VALUES('a b c');
+}
+
+do_execsql_test 17.1 {
+  SELECT rowid FROM x3('b AND d');
+}
+
+#-------------------------------------------------------------------------
+do_execsql_test 18.1 {
+  CREATE VIRTUAL TABLE x4 USING fts5(x);
+  SELECT rowid FROM x4('""');
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 19.1 {
+  CREATE VIRTUAL TABLE x1 USING fts5(a,b,c);
+}
+
+do_catchsql_test 19.2 {
+  SELECT * FROM x1 WHERE x1 MATCH 'c0 AND (c1 AND (c2 AND (c3 AND (c4 AND (c5 AND (c6 AND (c7 AND (c8 AND (c9 AND (c10 AND (c11 AND (c12 AND (c13 AND (c14 AND (c15 AND (c16 AND (c17 AND (c18 AND (c19 AND (c20 AND (c21 AND (c22 AND (c23 AND (c24 AND (c25 AND (c26 AND (c27 AND (c28 AND (c29 AND (c30 AND (c31 AND (c32 AND (c33 AND (c34 AND (c35 AND (c36 AND (c37 AND (c38 AND (c39 AND (c40 AND (c41 AND (c42 AND (c43 AND (c44 AND (c45 AND (c46 AND (c47 AND (c48 AND (c49 AND (c50 AND (c51 AND (c52 AND (c53 AND (c54 AND (c55 AND (c56 AND (c57 AND (c58 AND (c59 AND (c60 AND (c61 AND (c62 AND (c63 AND (c64 AND (c65 AND (c66 AND (c67 AND (c68 AND (c69 AND (c70 AND (c71 AND (c72 AND (c73 AND (c74 AND (c75 AND (c76 AND (c77 AND (c78 AND (c79 AND (c80 AND (c81 AND (c82 AND (c83 AND (c84 AND (c85 AND (c86 AND (c87 AND (c88 AND (c89 AND (c90 AND (c91 AND (c92 AND (c93 AND (c94 AND (c95 AND (c96 AND (c97 AND (c98 AND (c99 AND (c100 AND (c101 AND (c102 AND (c103 AND (c104 AND (c105 AND (c106 AND (c107 AND (c108 AND (c109 AND (c110 AND (c111 AND (c112 AND (c113 AND (c114 AND (c115 AND (c116 AND (c117 AND (c118 AND (c119 AND (c120 AND (c121 AND (c122 AND (c123 AND (c124 AND (c125 AND (c126 AND (c127 AND (c128 AND (c129 AND (c130 AND (c131 AND (c132 AND (c133 AND (c134 AND (c135 AND (c136 AND (c137 AND (c138 AND (c139 AND (c140 AND (c141 AND (c142 AND (c143 AND (c144 AND (c145 AND (c146 AND (c147 AND (c148 AND (c149 AND (c150 AND (c151 AND (c152 AND (c153 AND (c154 AND (c155 AND (c156 AND (c157 AND (c158 AND (c159 AND (c160 AND (c161 AND (c162 AND (c163 AND (c164 AND (c165 AND (c166 AND (c167 AND (c168 AND (c169 AND (c170 AND (c171 AND (c172 AND (c173 AND (c174 AND (c175 AND (c176 AND (c177 AND (c178 AND (c179 AND (c180 AND (c181 AND (c182 AND (c183 AND (c184 AND (c185 AND (c186 AND (c187 AND (c188 AND (c189 AND (c190 AND (c191 AND (c192 AND (c193 AND (c194 AND (c195 AND (c196 AND (c197 AND (c198 AND (c199 AND c200)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))';
+} {1 {fts5: parser stack overflow}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 20.0 {
+  CREATE VIRTUAL TABLE x1 USING fts5(x);
+  INSERT INTO x1(x1, rank) VALUES('pgsz', 32);
+  INSERT INTO x1(rowid, x) VALUES(11111, 'onetwothree');
+}
+do_test 20.1 {
+  for {set i 1} {$i <= 200} {incr i} {
+    execsql { INSERT INTO x1(rowid, x) VALUES($i, 'one two three'); }
+  }
+  execsql { INSERT INTO x1(x1) VALUES('optimize'); }
+  execsql { DELETE FROM x1 WHERE rowid = 4; }
+} {}
+do_execsql_test 20.2 {
+  INSERT INTO x1(x1) VALUES('optimize');
+  INSERT INTO x1(x1) VALUES('integrity-check');
+} {}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 20.0 {
+  CREATE VIRTUAL TABLE x1 USING fts5(x);
+  INSERT INTO x1(x1, rank) VALUES('pgsz', 32);
+  INSERT INTO x1(rowid, x) VALUES(11111, 'onetwothree');
+}
+do_test 20.1 {
+  for {set i 1} {$i <= 200} {incr i} {
+    execsql { INSERT INTO x1(rowid, x) VALUES($i, 'one two three'); }
+  }
+  execsql { INSERT INTO x1(x1) VALUES('optimize'); }
+  execsql { DELETE FROM x1 WHERE rowid = 4; }
+} {}
+do_execsql_test 20.2 {
+  INSERT INTO x1(x1) VALUES('optimize');
+  INSERT INTO x1(x1) VALUES('integrity-check');
+} {}
+
+#-------------------------------------------------------------------------
+reset_db
+set doc "a b [string repeat x 100000]"
+do_execsql_test 21.0 {
+  CREATE VIRTUAL TABLE x1 USING fts5(x);
+  INSERT INTO x1(rowid, x) VALUES(11111, $doc);
+  INSERT INTO x1(rowid, x) VALUES(11112, $doc);
+}
+do_execsql_test 21.1 {
+  INSERT INTO x1(x1) VALUES('integrity-check');
+}
+do_execsql_test 21.2 {
+  SELECT rowid FROM x1($doc);
+} {11111 11112}
+do_execsql_test 21.3 {
+  DELETE FROM x1 WHERE rowid=11111;
+  INSERT INTO x1(x1) VALUES('integrity-check');
+  SELECT rowid FROM x1($doc);
+} {11112}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 22.0 {
+  CREATE VIRTUAL TABLE x1 USING fts5(x);
+  INSERT INTO x1(x) VALUES('a b c');
+  INSERT INTO x1(x) VALUES('x y z');
+  INSERT INTO x1(x) VALUES('c b a');
+  INSERT INTO x1(x) VALUES('z y x');
+}
+
+do_catchsql_test 22.1 {SELECT * FROM x1('')}   {1 {fts5: syntax error near ""}}
+do_catchsql_test 22.2 {SELECT * FROM x1(NULL)} {1 {fts5: syntax error near ""}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 23.0 {
+  CREATE VIRTUAL TABLE x1 USING fts5(x);
+  SELECT count(*) FROM x1_data;
+} {2}
+
+do_execsql_test 23.1 {
+  BEGIN;
+    INSERT INTO x1 VALUES('a b c d');
+    INSERT INTO x1 VALUES('a b c d');
+    INSERT INTO x1 VALUES('a b c d');
+}
+
+do_execsql_test 23.2 {
+  SELECT count(*) FROM x1_data;
+} {2}
+
+do_execsql_test 23.3 {
+  INSERT INTO x1(x1) VALUES('flush');
+  SELECT count(*) FROM x1_data;
+} {3}
+
+do_execsql_test 23.4 {
+  ROLLBACK;
+  SELECT count(*) FROM x1_data;
+} {2}
+
+
+finish_test
diff --git a/ext/fts5/test/fts5simple2.test b/ext/fts5/test/fts5simple2.test
new file mode 100644
index 0000000000000000000000000000000000000000..01c590c9f73de9db2212767c5a7f92758a6740f1
--- /dev/null
+++ b/ext/fts5/test/fts5simple2.test
@@ -0,0 +1,374 @@
+# 2015 September 05
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5simple2
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, detail=none);
+  INSERT INTO t1 VALUES('a b c');
+}
+do_execsql_test 1.1 {
+  SELECT rowid FROM t1('c a b')
+} {1}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, detail=none);
+  BEGIN;
+    INSERT INTO t1 VALUES('b c d');
+    INSERT INTO t1 VALUES('b c d');
+  COMMIT;
+}
+do_execsql_test 2.1 {
+  SELECT rowid FROM t1('b c d')
+} {1 2}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, detail=none);
+  BEGIN;
+    INSERT INTO t1 VALUES('b c d');
+    INSERT INTO t1 VALUES('b c d');
+}
+do_execsql_test 3.1 {
+  SELECT rowid FROM t1('b c d'); COMMIT;
+} {1 2}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, detail=none);
+  BEGIN;
+    INSERT INTO t1 VALUES('a1 b1 c1');
+    INSERT INTO t1 VALUES('a2 b2 c2');
+    INSERT INTO t1 VALUES('a3 b3 c3');
+  COMMIT;
+}
+do_execsql_test 4.1 {
+  SELECT rowid FROM t1('b*');
+} {1 2 3}
+
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 5.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, detail=none);
+  BEGIN;
+  INSERT INTO t1 VALUES('a1 b1 c1');
+  INSERT INTO t1 VALUES('a2 b2 c2');
+  INSERT INTO t1 VALUES('a1 b1 c1');
+  COMMIT;
+}
+do_execsql_test 5.1 { SELECT rowid FROM t1('b*') } {1 2 3}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 6.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, detail=full);
+  BEGIN;
+  INSERT INTO t1 VALUES('a1 b1 c1');
+  INSERT INTO t1 VALUES('a1 b1 c1');
+  INSERT INTO t1 VALUES('a1 b1 c1');
+  COMMIT;
+}
+
+do_execsql_test 6.1 { SELECT rowid FROM t1('a1') ORDER BY rowid DESC } {3 2 1}
+do_execsql_test 6.2 { SELECT rowid FROM t1('b1') ORDER BY rowid DESC } {3 2 1}
+do_execsql_test 6.3 { SELECT rowid FROM t1('c1') ORDER BY rowid DESC } {3 2 1}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 7.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, detail=none);
+  BEGIN;
+  INSERT INTO t1 VALUES('a1 b1');
+  INSERT INTO t1 VALUES('a1 b2');
+  COMMIT;
+}
+do_execsql_test 7.1 { SELECT rowid FROM t1('b*') ORDER BY rowid DESC } {2 1}
+do_execsql_test 7.2 { SELECT rowid FROM t1('a1') ORDER BY rowid DESC } {2 1}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 8.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, detail=none);
+  INSERT INTO t1 VALUES('a1 b1 c1');
+  INSERT INTO t1 VALUES('a2 b2 c2');
+  INSERT INTO t1 VALUES('a1 b1 c1');
+}
+do_execsql_test 8.0.1 { SELECT rowid FROM t1('b*') } {1 2 3}
+do_execsql_test 8.0.2 { SELECT rowid FROM t1('a1') } {1 3}
+do_execsql_test 8.0.3 { SELECT rowid FROM t1('c2') } {2}
+
+do_execsql_test 8.0.4 { SELECT rowid FROM t1('b*') ORDER BY rowid DESC } {3 2 1}
+do_execsql_test 8.0.5 { SELECT rowid FROM t1('a1') ORDER BY rowid DESC } {3 1}
+do_execsql_test 8.0.8 { SELECT rowid FROM t1('c2') ORDER BY rowid DESC } {2}
+
+do_execsql_test 8.1.0 { INSERT INTO t1(t1) VALUES('optimize') }
+
+do_execsql_test 8.1.1 { SELECT rowid FROM t1('b*') } {1 2 3}
+do_execsql_test 8.1.2 { SELECT rowid FROM t1('a1') } {1 3}
+do_execsql_test 8.1.3 { SELECT rowid FROM t1('c2') } {2}
+
+do_execsql_test 8.2.1 { SELECT rowid FROM t1('b*') ORDER BY rowid DESC} {3 2 1}
+do_execsql_test 8.2.2 { SELECT rowid FROM t1('a1') ORDER BY rowid DESC} {3 1}
+do_execsql_test 8.2.3 { SELECT rowid FROM t1('c2') ORDER BY rowid DESC} {2}
+
+#--------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 9.0.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, detail=none);
+  INSERT INTO t1 VALUES('a1 b1 c1');
+  INSERT INTO t1 VALUES('a2 b2 c2');
+  INSERT INTO t1 VALUES('a1 b1 c1');
+}
+do_execsql_test 9.0.1 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+} {}
+
+reset_db
+do_execsql_test 9.1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, b, detail=none);
+  INSERT INTO t1 VALUES('a1 b1 c1', 'x y z');
+  INSERT INTO t1 VALUES('a2 b2 c2', '1 2 3');
+  INSERT INTO t1 VALUES('a1 b1 c1', 'x 2 z');
+}
+do_execsql_test 9.2.1 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+} {}
+
+#--------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 10.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, detail=none);
+  INSERT INTO t1 VALUES('b1');
+  INSERT INTO t1 VALUES('b1');
+  DELETE FROM t1 WHERE rowid=1;
+}
+
+do_execsql_test 10.1 {
+  SELECT rowid FROM t1('b1');
+} {2}
+
+do_execsql_test 10.2 {
+  SELECT rowid FROM t1('b1') ORDER BY rowid DESC;
+} {2}
+
+do_execsql_test 10.3 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+} {}
+
+#--------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 11.1 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x, y, detail=none);
+  INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
+  WITH d(x,y) AS (
+    SELECT NULL, 'xyz' UNION ALL SELECT NULL, 'xyz' FROM d
+  )
+  INSERT INTO t1 SELECT * FROM d LIMIT 23;
+}
+
+#db eval { SELECT rowid AS r, quote(block) AS b FROM t1_data } { puts "$r: $b" }
+do_execsql_test 11.2 {
+  SELECT rowid FROM t1;
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23}
+
+do_execsql_test 11.3 {
+  SELECT rowid FROM t1('xyz');
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23}
+
+do_execsql_test 11.4 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 12.0 {
+  CREATE VIRTUAL TABLE yy USING fts5(x, detail=none);
+  INSERT INTO yy VALUES('in if');
+  INSERT INTO yy VALUES('if');
+} {}
+
+do_execsql_test 12.1 {
+  SELECT rowid FROM yy('i*');
+} {1 2}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 13.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, prefix=1, detail=none);
+} {}
+foreach {rowid a} {
+  0   {f}
+  1   {u}
+  2   {k}
+  3   {a}
+  4   {a}
+  5   {u}
+  6   {u}
+  7   {u}
+  8   {f}
+  9   {f}
+  10  {a}
+  11  {p}
+  12  {f}
+  13  {u}
+  14  {a}
+  15  {a}
+} {
+  do_execsql_test 13.1.$rowid {
+    INSERT INTO t1(rowid, a) VALUES($rowid, $a);
+  }
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+fts5_aux_test_functions db
+do_execsql_test 14.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, detail=none);
+  INSERT INTO t1 VALUES('a b c d');
+} {}
+
+do_execsql_test 14.1 {
+  SELECT fts5_test_poslist(t1) FROM t1('b') ORDER BY rank;
+} {0.0.1}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 15.1 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x, detail=none);
+  BEGIN;
+    INSERT INTO t1(rowid, x) VALUES(1, 'sqlite');
+    INSERT INTO t1(rowid, x) VALUES(2, 'sqlite'); 
+  COMMIT;
+} {}
+
+do_test 15.1 {
+  execsql { INSERT INTO t1(t1) VALUES('integrity-check') }
+} {}
+
+do_test 15.2 {
+  execsql { DELETE FROM t1 }
+} {}
+
+do_execsql_test 15.3.1 {
+  SELECT rowid FROM t1('sqlite');
+} {}
+
+do_execsql_test 15.3.2 {
+  SELECT rowid FROM t1('sqlite') ORDER BY rowid DESC;
+} {}
+
+do_test 15.4 {
+  execsql { INSERT INTO t1(t1) VALUES('integrity-check') }
+} {}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 16.0 {
+  CREATE VIRTUAL TABLE t2 USING fts5(x, detail=none);
+  BEGIN;
+    INSERT INTO t2(rowid, x) VALUES(1, 'a b c');
+    INSERT INTO t2(rowid, x) VALUES(456, 'a b c');
+    INSERT INTO t2(rowid, x) VALUES(1000, 'a b c');
+  COMMIT;
+  UPDATE t2 SET x=x;
+}
+
+do_execsql_test 16.1 {
+  INSERT INTO t2(t2) VALUES('integrity-check');
+} {}
+
+do_execsql_test 16.2 {
+  SELECT rowid FROM t2('b') ORDER BY rowid DESC
+} {1000 456 1}
+
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 16.0 {
+  CREATE VIRTUAL TABLE t2 USING fts5(x, detail=none);
+  BEGIN;
+    INSERT INTO t2(rowid, x) VALUES(1, 'a b c');
+    INSERT INTO t2(rowid, x) VALUES(456, 'a b c');
+    INSERT INTO t2(rowid, x) VALUES(1000, 'a b c');
+  COMMIT;
+  UPDATE t2 SET x=x;
+  DELETE FROM t2;
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 17.0 {
+  CREATE VIRTUAL TABLE t2 USING fts5(x, y);
+  BEGIN;
+    INSERT INTO t2 VALUES('a aa aaa', 'b bb bbb');
+    INSERT INTO t2 VALUES('a aa aaa', 'b bb bbb');
+    INSERT INTO t2 VALUES('a aa aaa', 'b bb bbb');
+  COMMIT;
+}
+do_execsql_test 17.1 { 
+  SELECT * FROM t2('y:a*') WHERE rowid BETWEEN 10 AND 20 
+}
+do_execsql_test 17.2 {
+  BEGIN;
+    INSERT INTO t2 VALUES('a aa aaa', 'b bb bbb');
+    SELECT * FROM t2('y:a*') WHERE rowid BETWEEN 10 AND 20 ;
+}
+do_execsql_test 17.3 {
+  COMMIT
+}
+
+reset_db
+do_execsql_test 17.4 {
+  CREATE VIRTUAL TABLE t2 USING fts5(x, y);
+  BEGIN;
+    INSERT INTO t2 VALUES('a aa aaa', 'b bb bbb');
+    INSERT INTO t2 VALUES('a aa aaa', 'b bb bbb');
+    SELECT * FROM t2('y:a*') WHERE rowid>66;
+}
+do_execsql_test 17.5 { SELECT * FROM t2('x:b* OR y:a*') }
+do_execsql_test 17.5 { COMMIT ; SELECT * FROM t2('x:b* OR y:a*') }
+do_execsql_test 17.6 { 
+  SELECT * FROM t2('x:b* OR y:a*') WHERE rowid>55
+}
+
+#db eval {SELECT rowid, fts5_decode_none(rowid, block) aS r FROM t2_data} {puts $r}
+  
+finish_test
diff --git a/ext/fts5/test/fts5simple3.test b/ext/fts5/test/fts5simple3.test
new file mode 100644
index 0000000000000000000000000000000000000000..680448081dffa99a0ebcbca9aa2d3da7031836f0
--- /dev/null
+++ b/ext/fts5/test/fts5simple3.test
@@ -0,0 +1,118 @@
+# 2015 September 05
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5simple3
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+fts5_aux_test_functions db
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, b, c, detail=col);
+  INSERT INTO t1 VALUES('a', 'b', 'c');
+  INSERT INTO t1 VALUES('x', 'x', 'x');
+}
+
+do_execsql_test 1.1 {
+  SELECT rowid, fts5_test_collist(t1) FROM t1('a:a');
+} {1 0.0}
+
+do_execsql_test 1.2 {
+  SELECT rowid, fts5_test_collist(t1) FROM t1('b:x');
+} {2 0.1}
+
+do_execsql_test 1.3 {
+  SELECT rowid, fts5_test_collist(t1) FROM t1('b:a');
+} {}
+
+#-------------------------------------------------------------------------
+# Create detail=col and detail=full tables with 998 columns.
+#
+foreach_detail_mode $testprefix {
+  if {[detail_is_none]} continue
+
+  do_test 2.1 {
+    execsql { DROP TABLE IF EXISTS t2 }
+    set cols [list]
+    set vals [list]
+    for {set i 1} {$i <= 998} {incr i} {
+      lappend cols "c$i"
+      lappend vals "'val$i'"
+    }
+    execsql "CREATE VIRTUAL TABLE t2 USING fts5(detail=%DETAIL%,[join $cols ,])"
+  } {}
+  
+  do_test 2.2 {
+    execsql "INSERT INTO t2 VALUES([join $vals ,])"
+  } {}
+  
+  foreach {tn q res} {
+    1 { c1:val1 }     1
+    2 { c300:val300 } 1
+    3 { c300:val1 } {}
+    4 { c1:val300 } {}
+  } {
+    do_execsql_test 2.3.$tn {
+      SELECT rowid FROM t2($q)
+    } $res
+  }
+}
+
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE x3 USING fts5(one);
+  INSERT INTO x3 VALUES('a b c');
+  INSERT INTO x3 VALUES('c b a');
+  INSERT INTO x3 VALUES('o t t');
+  SELECT * FROM x3('x OR y OR z');
+}
+
+#-------------------------------------------------------------------------
+# Test that a crash occuring when the second or subsequent tokens in a
+# phrase matched zero rows has been fixed.
+#
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x);
+  INSERT INTO t1 VALUES('ab');
+  INSERT INTO t1 VALUES('cd');
+  INSERT INTO t1 VALUES('ab cd');
+  INSERT INTO t1 VALUES('ab cdXXX');
+  INSERT INTO t1 VALUES('abXXX cd');
+}
+do_execsql_test 4.1 {
+  SELECT * FROM t1('"ab cd" OR "ab cd" *');
+} {{ab cd} {ab cdXXX}}
+do_execsql_test 4.2 {
+  SELECT * FROM t1('"xy zz" OR "ab cd" *');
+} {{ab cd} {ab cdXXX}}
+do_execsql_test 4.3 {
+  SELECT * FROM t1('"xy zz" OR "xy zz" *');
+}
+do_execsql_test 4.4 {
+  SELECT * FROM t1('"ab cd" OR "xy zz" *');
+} {{ab cd}}
+do_execsql_test 4.5 {
+  CREATE VIRTUAL TABLE t2 USING fts5(x);
+  INSERT INTO t2 VALUES('ab');
+  INSERT INTO t2 VALUES('cd');
+  INSERT INTO t2 VALUES('ef');
+} 
+do_execsql_test 4.6 {
+  SELECT * FROM t2('ab + xyz');
+}
+
+
+finish_test
diff --git a/ext/fts5/test/fts5synonym.test b/ext/fts5/test/fts5synonym.test
new file mode 100644
index 0000000000000000000000000000000000000000..55e2f186a908e012429a26d66f2ae58e0b77dafe
--- /dev/null
+++ b/ext/fts5/test/fts5synonym.test
@@ -0,0 +1,423 @@
+# 2014 Dec 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests focusing on custom tokenizers that support synonyms.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5synonym
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+proc tcl_create {args} { return "tcl_tokenize" }
+
+foreach_detail_mode $testprefix {
+
+#-------------------------------------------------------------------------
+# Warm body test for the code in fts5_tcl.c.
+#
+fts5_tclnum_register db
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE ft USING fts5(x, tokenize = "tclnum document", detail=%DETAIL%);
+  INSERT INTO ft VALUES('abc def ghi');
+  INSERT INTO ft VALUES('jkl mno pqr');
+  SELECT rowid, x FROM ft WHERE ft MATCH 'def';
+  SELECT x, rowid FROM ft WHERE ft MATCH 'pqr';
+} {1 {abc def ghi} {jkl mno pqr} 2}
+
+#-------------------------------------------------------------------------
+# Test a tokenizer that supports synonyms by adding extra entries to the
+# FTS index.
+#
+reset_db
+fts5_tclnum_register db
+
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE ft USING fts5(
+      x, tokenize = "tclnum document", detail=%DETAIL%
+  );
+  INSERT INTO ft VALUES('one two three');
+  INSERT INTO ft VALUES('four five six');
+  INSERT INTO ft VALUES('eight nine ten');
+} {}
+
+foreach {tn expr res} {
+  1 "3" 1
+  2 "eight OR 8 OR 5" {2 3}
+  3 "10" {}
+  4 "1*" {1}
+  5 "1 + 2" {1}
+} {
+  if {![fts5_expr_ok $expr ft]} continue
+  do_execsql_test 2.1.$tn {
+    SELECT rowid FROM ft WHERE ft MATCH $expr
+  } $res
+}
+
+#-------------------------------------------------------------------------
+# Test some broken tokenizers:
+#
+#   3.1.*: A tokenizer that declares the very first token to be colocated.
+#
+#   3.2.*: A tokenizer that reports two identical tokens at the same position.
+#          This is allowed.
+#
+reset_db
+sqlite3_fts5_create_tokenizer db tcl tcl_create
+proc tcl_tokenize {tflags text} {
+  set bColo 1
+  foreach {w iStart iEnd} [fts5_tokenize_split $text] {
+    if {$bColo} {
+      sqlite3_fts5_token -colo $w $iStart $iEnd
+      set bColo 0
+    } {
+      sqlite3_fts5_token $w $iStart $iEnd
+    }
+  }
+}
+do_execsql_test 3.1.0 {
+  CREATE VIRTUAL TABLE ft USING fts5(x, tokenize = tcl);
+  INSERT INTO ft VALUES('one two three');
+  CREATE VIRTUAL TABLE vv USING fts5vocab(ft, row);
+  SELECT * FROM vv;
+} {
+  one 1 1   three 1 1   two 1 1
+}
+
+do_execsql_test 3.1.1 {
+  INSERT INTO ft(ft) VALUES('integrity-check');
+} {}
+
+proc tcl_tokenize {tflags text} {
+  foreach {w iStart iEnd} [fts5_tokenize_split $text] {
+    sqlite3_fts5_token $w $iStart $iEnd
+  }
+}
+
+do_execsql_test 3.1.2 {
+  SELECT rowid FROM ft WHERE ft MATCH 'one two three'
+} {1}
+
+reset_db
+sqlite3_fts5_create_tokenizer db tcl tcl_create
+proc tcl_tokenize {tflags text} {
+  foreach {w iStart iEnd} [fts5_tokenize_split $text] {
+    sqlite3_fts5_token $w $iStart $iEnd
+    sqlite3_fts5_token -colo $w $iStart $iEnd
+  }
+}
+do_execsql_test 3.2.0 {
+  CREATE VIRTUAL TABLE ft USING fts5(x, tokenize = tcl);
+  INSERT INTO ft VALUES('one one two three');
+  CREATE VIRTUAL TABLE vv USING fts5vocab(ft, row);
+  SELECT * FROM vv;
+} {
+  one 1 4   three 1 2   two 1 2
+}
+do_execsql_test 3.2.1 {
+  SELECT rowid FROM ft WHERE ft MATCH 'one';
+} {1}
+do_execsql_test 3.2.2 {
+  SELECT rowid FROM ft WHERE ft MATCH 'one two three';
+} {1}
+do_execsql_test 3.2.3 {
+  SELECT rowid FROM ft WHERE ft MATCH 'one + one + two + three';
+} {1}
+do_execsql_test 3.2.4 {
+  SELECT rowid FROM ft WHERE ft MATCH 'one two two three';
+} {1}
+do_execsql_test 3.2.5 {
+  SELECT rowid FROM ft WHERE ft MATCH 'one + two + two + three';
+} {}
+
+#-------------------------------------------------------------------------
+# Check that expressions with synonyms can be parsed and executed.
+#
+reset_db
+fts5_tclnum_register db
+
+foreach {tn expr res} {
+  1  {abc}                           {"abc"}
+  2  {one}                           {"one"|"i"|"1"}
+  3  {3}                             {"3"|"iii"|"three"}
+  4  {3*}                            {"3" *}
+} {
+  do_execsql_test 4.1.$tn {
+    SELECT fts5_expr($expr, 'tokenize=tclnum')
+  } [list $res]
+}
+
+do_execsql_test 4.2.1 {
+  CREATE VIRTUAL TABLE xx USING fts5(x, tokenize=tclnum, detail=%DETAIL%);
+  INSERT INTO xx VALUES('one two');
+  INSERT INTO xx VALUES('three four');
+}
+
+do_execsql_test 4.2.2 {
+  SELECT rowid FROM xx WHERE xx MATCH '2'
+} {1}
+
+do_execsql_test 4.2.3 {
+  SELECT rowid FROM xx WHERE xx MATCH '3'
+} {2}
+
+do_test 5.0 {
+  execsql { 
+    CREATE VIRTUAL TABLE t1 USING fts5(a, b, tokenize=tclnum, detail=%DETAIL%)
+  }
+  foreach {rowid a b} {
+    1 {four v 4 i three} {1 3 five five 4 one}
+    2 {5 1 3 4 i} {2 2 v two 4}
+    3 {5 i 5 2 four 4 1} {iii ii five two 1}
+    4 {ii four 4 one 5 three five} {one 5 1 iii 4 3}
+    5 {three i v i four 4 1} {ii five five five iii}
+    6 {4 2 ii two 2 iii} {three 1 four 4 iv 1 iv}
+    7 {ii ii two three 2 5} {iii i ii iii iii one one}
+    8 {2 ii i two 3 three 2} {two iv v iii 3 five}
+    9 {i 2 iv 3 five four v} {iii 4 three i three ii 1}
+  } {
+    execsql { INSERT INTO t1(rowid, a, b) VALUES($rowid, $a, $b) }
+  }
+} {}
+
+
+foreach {tn q res} {
+  1 {one} {
+    1 {four v 4 [i] three} {[1] 3 five five 4 [one]}
+    2 {5 [1] 3 4 [i]} {2 2 v two 4}
+    3 {5 [i] 5 2 four 4 [1]} {iii ii five two [1]}
+    4 {ii four 4 [one] 5 three five} {[one] 5 [1] iii 4 3}
+    5 {three [i] v [i] four 4 [1]} {ii five five five iii}
+    6 {4 2 ii two 2 iii} {three [1] four 4 iv [1] iv}
+    7 {ii ii two three 2 5} {iii [i] ii iii iii [one] [one]}
+    8 {2 ii [i] two 3 three 2} {two iv v iii 3 five}
+    9 {[i] 2 iv 3 five four v} {iii 4 three [i] three ii [1]}
+  }
+  2 {five four} {
+    1 {[four] [v] [4] i three} {1 3 [five] [five] [4] one}
+    2 {[5] 1 3 [4] i} {2 2 [v] two [4]}
+    3 {[5] i [5] 2 [four] [4] 1} {iii ii [five] two 1}
+    4 {ii [four] [4] one [5] three [five]} {one [5] 1 iii [4] 3}
+    5 {three i [v] i [four] [4] 1} {ii [five] [five] [five] iii}
+    8 {2 ii i two 3 three 2} {two [iv] [v] iii 3 [five]}
+    9 {i 2 [iv] 3 [five] [four] [v]} {iii [4] three i three ii 1}
+  }
+  3 {one OR two OR iii OR 4 OR v} {
+    1 {[four] [v] [4] [i] [three]} {[1] [3] [five] [five] [4] [one]}
+    2 {[5] [1] [3] [4] [i]} {[2] [2] [v] [two] [4]}
+    3 {[5] [i] [5] [2] [four] [4] [1]} {[iii] [ii] [five] [two] [1]}
+    4 {[ii] [four] [4] [one] [5] [three] [five]} {[one] [5] [1] [iii] [4] [3]}
+    5 {[three] [i] [v] [i] [four] [4] [1]} {[ii] [five] [five] [five] [iii]}
+    6 {[4] [2] [ii] [two] [2] [iii]} {[three] [1] [four] [4] [iv] [1] [iv]}
+    7 {[ii] [ii] [two] [three] [2] [5]} {[iii] [i] [ii] [iii] [iii] [one] [one]}
+    8 {[2] [ii] [i] [two] [3] [three] [2]} {[two] [iv] [v] [iii] [3] [five]}
+    9 {[i] [2] [iv] [3] [five] [four] [v]} {[iii] [4] [three] [i] [three] [ii] [1]}
+  }
+
+  4 {5 + 1} {
+    2 {[5 1] 3 4 i} {2 2 v two 4} 
+    3 {[5 i] 5 2 four 4 1} {iii ii five two 1} 
+    4 {ii four 4 one 5 three five} {one [5 1] iii 4 3} 
+    5 {three i [v i] four 4 1} {ii five five five iii}
+  }
+
+  5 {one + two + three} {
+    7 {ii ii two three 2 5} {iii [i ii iii] iii one one}
+    8 {2 ii [i two 3] three 2} {two iv v iii 3 five}
+  }
+
+  6 {"v v"} {
+    1 {four v 4 i three} {1 3 [five five] 4 one}
+    5 {three i v i four 4 1} {ii [five five five] iii}
+  }
+} {
+  if {![fts5_expr_ok $q t1]} continue
+  do_execsql_test 5.1.$tn {
+    SELECT rowid, highlight(t1, 0, '[', ']'), highlight(t1, 1, '[', ']')
+    FROM t1 WHERE t1 MATCH $q
+  } $res
+}
+
+# Test that the xQueryPhrase() API works with synonyms.
+#
+proc mit {blob} {
+  set scan(littleEndian) i*
+  set scan(bigEndian) I*
+  binary scan $blob $scan($::tcl_platform(byteOrder)) r
+  return $r
+}
+db func mit mit
+sqlite3_fts5_register_matchinfo db
+
+foreach {tn q res} {
+  1 {one} {
+      1 {1 11 7 2 12 6}     2 {2 11 7 0 12 6} 
+      3 {2 11 7 1 12 6}     4 {1 11 7 2 12 6} 
+      5 {3 11 7 0 12 6}     6 {0 11 7 2 12 6} 
+      7 {0 11 7 3 12 6}     8 {1 11 7 0 12 6} 
+      9 {1 11 7 2 12 6}
+  }
+} {
+  do_execsql_test 5.2.$tn {
+    SELECT rowid, mit(matchinfo(t1, 'x')) FROM t1 WHERE t1 MATCH $q
+  } $res
+}
+
+#-------------------------------------------------------------------------
+# Test terms with more than 4 synonyms.
+#
+reset_db
+sqlite3_fts5_create_tokenizer db tcl tcl_create
+proc tcl_tokenize {tflags text} {
+  foreach {w iStart iEnd} [fts5_tokenize_split $text] {
+    sqlite3_fts5_token $w $iStart $iEnd
+    if {$tflags=="query" && [string length $w]==1} {
+      for {set i 2} {$i<=10} {incr i} {
+        sqlite3_fts5_token -colo [string repeat $w $i] $iStart $iEnd
+      }
+    }
+  }
+}
+
+do_execsql_test 6.0.1 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x, tokenize=tcl, detail=%DETAIL%);
+  INSERT INTO t1 VALUES('yy xx qq');
+  INSERT INTO t1 VALUES('yy xx xx');
+}
+if {[fts5_expr_ok "NEAR(y q)" t1]} {
+  do_execsql_test 6.0.2 {
+    SELECT * FROM t1 WHERE t1 MATCH 'NEAR(y q)';
+  } {{yy xx qq}}
+}
+
+do_test 6.0.3 {
+  execsql { 
+    CREATE VIRTUAL TABLE t2 USING fts5(a, b, tokenize=tcl, detail=%DETAIL%)
+  }
+  foreach {rowid a b} {
+    1 {yyyy vvvvv qq oo yyyyyy vvvv eee} {ffff uu r qq aaaa}
+    2 {ww oooooo bbbbb ssssss mm} {ffffff yy iiii rr s ccc qqqqq}
+    3 {zzzz llll gggggg cccc uu} {hhhhhh aaaa ppppp rr ee jjjj}
+    4 {r f i rrrrrr ww hhh} {aa yyy t x aaaaa ii}
+    5 {fffff mm vvvv ooo ffffff kkkk tttt} {cccccc bb e zzz d n}
+    6 {iii dddd hh qqqq ddd ooo} {ttt d c b aaaaaa qqqq}
+    7 {jjjj rrrr v zzzzz u tt t} {ppppp pp dddd mm hhh uuu}
+    8 {gggg rrrrrr kkkk vvvv gggg jjjjjj b} {dddddd jj r w cccc wwwwww ss}
+    9 {kkkkk qqq oooo e tttttt mmm} {e ss qqqqqq hhhh llllll gg}
+  } {
+    execsql { INSERT INTO t2(rowid, a, b) VALUES($rowid, $a, $b) }
+  }
+} {}
+
+foreach {tn q res} {
+  1 {a} {
+    1 {yyyy vvvvv qq oo yyyyyy vvvv eee} {ffff uu r qq [aaaa]}
+    3 {zzzz llll gggggg cccc uu} {hhhhhh [aaaa] ppppp rr ee jjjj}
+    4 {r f i rrrrrr ww hhh} {[aa] yyy t x [aaaaa] ii}
+    6 {iii dddd hh qqqq ddd ooo} {ttt d c b [aaaaaa] qqqq}
+  }
+
+  2 {a AND q} {
+    1 {yyyy vvvvv [qq] oo yyyyyy vvvv eee} {ffff uu r [qq] [aaaa]}
+    6 {iii dddd hh [qqqq] ddd ooo} {ttt d c b [aaaaaa] [qqqq]}
+  }
+
+  3 {o OR (q AND a)} {
+    1 {yyyy vvvvv [qq] [oo] yyyyyy vvvv eee} {ffff uu r [qq] [aaaa]}
+    2 {ww [oooooo] bbbbb ssssss mm} {ffffff yy iiii rr s ccc qqqqq}
+    5 {fffff mm vvvv [ooo] ffffff kkkk tttt} {cccccc bb e zzz d n}
+    6 {iii dddd hh [qqqq] ddd [ooo]} {ttt d c b [aaaaaa] [qqqq]}
+    9 {kkkkk qqq [oooo] e tttttt mmm} {e ss qqqqqq hhhh llllll gg}
+  }
+
+  4 {NEAR(q y, 20)} {
+    1 {[yyyy] vvvvv [qq] oo [yyyyyy] vvvv eee} {ffff uu r qq aaaa}
+    2 {ww oooooo bbbbb ssssss mm} {ffffff [yy] iiii rr s ccc [qqqqq]}
+  }
+} {
+  if {![fts5_expr_ok $q t2]} continue
+
+  do_execsql_test 6.1.$tn.asc {
+    SELECT rowid, highlight(t2, 0, '[', ']'), highlight(t2, 1, '[', ']')
+    FROM t2 WHERE t2 MATCH $q
+  } $res
+
+  set res2 [list]
+  foreach {rowid a b} $res {
+    set res2 [concat [list $rowid $a $b] $res2]
+  }
+
+  do_execsql_test 6.1.$tn.desc {
+    SELECT rowid, highlight(t2, 0, '[', ']'), highlight(t2, 1, '[', ']')
+    FROM t2 WHERE t2 MATCH $q ORDER BY rowid DESC
+  } $res2
+}
+
+do_execsql_test 6.2.1 {
+  INSERT INTO t2(rowid, a, b) VALUES(13,
+      'x xx xxx xxxx xxxxx xxxxxx xxxxxxx', 'y yy yyy yyyy yyyyy yyyyyy yyyyyyy'
+  );
+  SELECT rowid, highlight(t2, 0, '<', '>'), highlight(t2, 1, '(', ')')
+  FROM t2 WHERE t2 MATCH 'x OR y'
+} {
+  1 {<yyyy> vvvvv qq oo <yyyyyy> vvvv eee} {ffff uu r qq aaaa}
+  2 {ww oooooo bbbbb ssssss mm} {ffffff (yy) iiii rr s ccc qqqqq}
+  4 {r f i rrrrrr ww hhh} {aa (yyy) t (x) aaaaa ii}
+  13 {<x> <xx> <xxx> <xxxx> <xxxxx> <xxxxxx> <xxxxxxx>}
+     {(y) (yy) (yyy) (yyyy) (yyyyy) (yyyyyy) (yyyyyyy)}
+}
+
+#-------------------------------------------------------------------------
+# Test that the xColumnSize() API is not confused by colocated tokens.
+#
+reset_db
+sqlite3_fts5_create_tokenizer db tcl tcl_create
+fts5_aux_test_functions db
+proc tcl_tokenize {tflags text} {
+  foreach {w iStart iEnd} [fts5_tokenize_split $text] {
+    sqlite3_fts5_token $w $iStart $iEnd
+    if {[string length $w]==1} {
+      for {set i 2} {$i<=10} {incr i} {
+        sqlite3_fts5_token -colo [string repeat $w $i] $iStart $iEnd
+      }
+    }
+  }
+}
+
+do_execsql_test 7.0.1 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, b, columnsize=1, tokenize=tcl, detail=%DETAIL%);
+  INSERT INTO t1 VALUES('0 2 3', '4 5 6 7');
+  INSERT INTO t1 VALUES('8 9', '0 0 0 0 0 0 0 0 0 0');
+  SELECT fts5_test_columnsize(t1) FROM t1 WHERE t1 MATCH '000 AND 00 AND 0';
+} {{3 4} {2 10}}
+
+do_execsql_test 7.0.2 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+}
+
+do_execsql_test 7.1.1 {
+  CREATE VIRTUAL TABLE t2 USING fts5(a, b, columnsize=0, tokenize=tcl, detail=%DETAIL%);
+  INSERT INTO t2 VALUES('0 2 3', '4 5 6 7');
+  INSERT INTO t2 VALUES('8 9', '0 0 0 0 0 0 0 0 0 0');
+  SELECT fts5_test_columnsize(t2) FROM t2 WHERE t2 MATCH '000 AND 00 AND 0';
+} {{3 4} {2 10}}
+
+do_execsql_test 7.1.2 {
+  INSERT INTO t2(t2) VALUES('integrity-check');
+}
+
+} ;# foreach_detail_mode
+
+finish_test
diff --git a/ext/fts5/test/fts5synonym2.test b/ext/fts5/test/fts5synonym2.test
new file mode 100644
index 0000000000000000000000000000000000000000..ec8b750c579139618809d9d7c61992aaf2959636
--- /dev/null
+++ b/ext/fts5/test/fts5synonym2.test
@@ -0,0 +1,166 @@
+# 2014 Dec 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests focusing on custom tokenizers that support synonyms.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5synonym2
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+foreach tok {query document} {
+foreach_detail_mode $testprefix {
+
+fts5_tclnum_register db
+fts5_aux_test_functions db
+
+proc fts5_test_bothlist {cmd} {
+
+  for {set i 0} {$i < [$cmd xPhraseCount]} {incr i} {
+    set bFirst 1
+    $cmd xPhraseColumnForeach $i c { 
+      lappend CL $i.$c 
+      if {$bFirst} { $cmd xPhraseForeach $i c o { lappend PL $i.$c.$o } }
+      set bFirst 0
+    }
+  }
+
+  list [sort_poslist $PL] $CL
+}
+sqlite3_fts5_create_function db fts5_test_bothlist fts5_test_bothlist
+
+proc fts5_rowid {cmd} { expr [$cmd xRowid] }
+sqlite3_fts5_create_function db fts5_rowid fts5_rowid
+
+do_execsql_test 1.$tok.0.1 "
+  CREATE VIRTUAL TABLE ss USING fts5(a, b, 
+       tokenize='tclnum $tok', detail=%DETAIL%);
+  INSERT INTO ss(ss, rank) VALUES('rank', 'fts5_rowid()');
+"
+
+do_execsql_test 1.$tok.0.2 {
+  INSERT INTO ss VALUES('5 5 five seven 3 seven i', '2 1 5 0 two 1 i');
+  INSERT INTO ss VALUES('six ix iii 7 i vii iii', 'one seven nine 4 9 1 vi');
+  INSERT INTO ss VALUES('6 viii i five six zero seven', '5 v iii iv iv 3');
+  INSERT INTO ss VALUES('9 ii six 8 1 6', 'six 4 iv iv 7');
+  INSERT INTO ss VALUES('1 5 4 eight ii iv iii', 'nine 2 eight ix v vii');
+  INSERT INTO ss VALUES('one 7 seven six 2 two', '1 2 four 7 4 3 4');
+  INSERT INTO ss VALUES('eight iv 4 nine vii six 1', '5 6 v one zero 4');
+  INSERT INTO ss VALUES('v 9 8 iii 4', '9 4 seven two vi vii');
+  INSERT INTO ss VALUES('3 ix two 9 0 nine i', 'five ii nine two viii i five');
+  INSERT INTO ss VALUES('six iii 9 two eight 2', 'nine i nine vii nine');
+  INSERT INTO ss VALUES('6 three zero seven vii five', '8 vii ix 0 7 seven');
+  INSERT INTO ss VALUES('8 vii 8 7 3 4', 'eight iii four viii nine iv three');
+  INSERT INTO ss VALUES('4 v 7 two 0 one 8', 'vii 1 two five i zero 9');
+  INSERT INTO ss VALUES('3 ii vii vi eight', '8 4 ix one three eight');
+  INSERT INTO ss VALUES('iv eight seven 6 9 seven', 'one vi two five seven');
+  INSERT INTO ss VALUES('i i 5 i v vii eight', '2 seven i 2 2 four');
+  INSERT INTO ss VALUES('0 i iii nine 3 ix five', '0 eight iv 0 six 2');
+  INSERT INTO ss VALUES('iv vii three 3 9 one 8', '2 ii 6 eight ii six six');
+  INSERT INTO ss VALUES('eight one two nine six', '8 9 3 viii vi');
+  INSERT INTO ss VALUES('one 0 four ii eight one 3', 'iii eight vi vi vi');
+  INSERT INTO ss VALUES('4 0 eight 0 0', '1 four one vii seven ii');
+  INSERT INTO ss VALUES('1 zero nine 2 2', 'viii iv two vi nine v iii');
+  INSERT INTO ss VALUES('5 five viii four four vi', '8 five 7 vii 6 4');
+  INSERT INTO ss VALUES('7 ix four 8 vii', 'nine three nine ii ix vii');
+  INSERT INTO ss VALUES('nine iv v i 0 v', 'two iv vii six i ix 4');
+  INSERT INTO ss VALUES('one v v one viii 3 8', '2 1 3 five iii');
+  INSERT INTO ss VALUES('six ii 5 nine 4 viii seven', 'eight i ix ix 7 four');
+  INSERT INTO ss VALUES('9 ii two seven three 7 0', 'six viii seven 7 five');
+  INSERT INTO ss VALUES('five two 4 viii nine', '9 7 nine zero 1 two one');
+  INSERT INTO ss VALUES('viii 8 iii i ii 8 3', '4 2 7 v 8 8');
+  INSERT INTO ss VALUES('four vii 4 iii zero 0 vii', '3 viii iii zero 9 i');
+  INSERT INTO ss VALUES('0 seven v five i five v', 'one 4 2 ix 9');
+  INSERT INTO ss VALUES('two 5 two two ix 4 1', '3 nine ii v nine 3 five');
+  INSERT INTO ss VALUES('five 5 7 4 6 vii', 'three 2 ix 2 8 6');
+  INSERT INTO ss VALUES('six iii vi iv seven eight', '8 six 7 0 4');
+  INSERT INTO ss VALUES('vi vi iv 3 0 one one', '9 6 eight ix iv');
+  INSERT INTO ss VALUES('7 2 2 iii 0', '0 0 seven 1 nine');
+  INSERT INTO ss VALUES('8 6 iv six ii', 'iv 6 3 4 ii five');
+  INSERT INTO ss VALUES('0 two two seven ii', 'vii ix four 4 zero vi vi');
+  INSERT INTO ss VALUES('2 one eight 8 9 7', 'vi 3 0 3 vii');
+  INSERT INTO ss VALUES('iii ii ix iv three', 'vi i 6 1 two');
+  INSERT INTO ss VALUES('eight four nine 8 seven', 'one three i nine iii one');
+  INSERT INTO ss VALUES('iii seven five ix 8', 'ii 7 seven 0 four ii');
+  INSERT INTO ss VALUES('four 0 1 5 two', 'iii 9 5 ii ii 2 4');
+  INSERT INTO ss VALUES('iii nine four vi 8 five six', 'i i ii seven vi vii');
+  INSERT INTO ss VALUES('eight vii eight six 3', 'i vii 1 six 9 vii');
+  INSERT INTO ss VALUES('9 0 viii viii five', 'i 1 viii ix 3 4');
+  INSERT INTO ss VALUES('three nine 5 nine viii four zero', 'ii i 1 5 2 viii');
+  INSERT INTO ss VALUES('5 vii three 9 four', 'three five one 7 2 eight one');
+}
+
+foreach {tn expr} {
+  2.1 "one OR two OR three OR four"
+
+  1.1 "one"   1.2 "two"   1.3 "three"   1.4 "four"
+  1.5 "v"     1.6 "vi"    1.7 "vii"     1.8 "viii"
+  1.9 "9"    1.10 "0"    1.11 "1"      1.12 "2"
+
+  2.1 "one OR two OR three OR four"
+  2.2 "(one AND two) OR (three AND four)"
+  2.3 "(one AND two) OR (three AND four) NOT five"
+  2.4 "(one AND two) NOT 6"
+
+  3.1 "b:one AND a:two"
+  3.2 "b:one OR a:two"
+  3.3 "a:one OR b:1 OR {a b} : i"
+
+  4.1 "NEAR(one two, 2)"
+  4.2 "NEAR(one two three, 2)"
+  4.3 "NEAR(eight nine, 1) OR NEAR(six seven, 1)"
+
+  5.1 "one + two"
+  5.2 "1 + two"
+} {
+  if {[fts5_expr_ok $expr ss]==0} {
+    do_test 1.$tok.$tn.OMITTED { list } [list]
+    continue
+  }
+
+  set res [fts5_query_data $expr ss ASC ::tclnum_syn]
+  do_execsql_test 1.$tok.$tn.[llength $res].asc.1 {
+    SELECT rowid, fts5_test_poslist2(ss), fts5_test_collist(ss) FROM ss($expr)
+  } $res
+
+  do_execsql_test 1.$tok.$tn.[llength $res].asc.2 {
+    SELECT rowid, fts5_test_poslist(ss), fts5_test_collist(ss) FROM ss($expr)
+  } $res
+
+  do_execsql_test 1.$tok.$tn.[llength $res].asc.2 {
+    SELECT rowid, fts5_test_poslist2(ss), fts5_test_collist(ss) FROM ss($expr)
+    ORDER BY rank ASC
+  } $res
+
+  set res2 [list]
+  foreach {a b c} $res { lappend res2 $a $c $b }
+  do_execsql_test 1.$tok.$tn.[llength $res].asc.3 {
+    SELECT rowid, fts5_test_collist(ss), fts5_test_poslist2(ss) FROM ss($expr)
+  } $res2
+
+  set res3 [list]
+  foreach {a b c} $res { lappend res3 $a [list $b $c] }
+  do_execsql_test 1.$tok.$tn.[llength $res].asc.3 {
+    SELECT rowid, fts5_test_bothlist(ss) FROM ss($expr)
+  } $res3
+
+
+}
+
+}
+}
+
+finish_test
diff --git a/ext/fts5/test/fts5tok1.test b/ext/fts5/test/fts5tok1.test
new file mode 100644
index 0000000000000000000000000000000000000000..c605ce36172399d2b43f1081642d07b3ec8a342f
--- /dev/null
+++ b/ext/fts5/test/fts5tok1.test
@@ -0,0 +1,150 @@
+# 2016 Jan 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+ifcapable !fts5 { finish_test ; return }
+set ::testprefix fts5tok1
+
+
+sqlite3_fts5_register_fts5tokenize db
+
+#-------------------------------------------------------------------------
+# Simple test cases. Using the default (ascii) tokenizer.
+#
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5tokenize(ascii);
+  CREATE VIRTUAL TABLE t2 USING fts5tokenize();
+  CREATE VIRTUAL TABLE t3 USING fts5tokenize(
+      ascii, 'separators', 'xyz', tokenchars, ''''
+  );
+}
+
+foreach {tn tbl} {1 t1 2 t2 3 t3} {
+  do_execsql_test 1.$tn.1 "SELECT input, * FROM $tbl ('one two three')" {
+    {one two three} one   0  3 0 
+    {one two three} two   4  7 1 
+    {one two three} three 8 13 2
+  }
+
+  do_execsql_test 1.$tn.2 "
+    SELECT token FROM $tbl WHERE input = 'OnE tWo tHrEe'
+  " {
+    one two three
+  }
+}
+
+do_execsql_test 1.4 {
+  SELECT token FROM t3 WHERE input = '1x2x3x'
+} {1 2 3}
+
+do_execsql_test 1.5 {
+  SELECT token FROM t1 WHERE input = '1x2x3x'
+} {1x2x3x}
+
+do_execsql_test 1.6 {
+  SELECT token FROM t3 WHERE input = '1''2x3x'
+} {1'2 3}
+
+do_execsql_test 1.7 {
+  SELECT token FROM t3 WHERE input = ''
+} {}
+
+do_execsql_test 1.8 {
+  SELECT token FROM t3 WHERE input = NULL
+} {}
+
+do_execsql_test 1.9 {
+  SELECT input, * FROM t3 WHERE input = 123
+} {123 123 0 3 0}
+
+do_execsql_test 1.10 {
+  SELECT input, * FROM t1 WHERE input = 'a b c' AND token = 'b';
+} {
+  {a b c} b 2 3 1
+}
+
+do_execsql_test 1.11 {
+  SELECT input, * FROM t1 WHERE token = 'b' AND input = 'a b c';
+} {
+  {a b c} b 2 3 1
+}
+
+do_execsql_test 1.12 {
+  SELECT input, * FROM t1 WHERE input < 'b' AND input = 'a b c';
+} {
+  {a b c} a 0 1 0 
+  {a b c} b 2 3 1 
+  {a b c} c 4 5 2
+}
+
+do_execsql_test 1.13.1 {
+  CREATE TABLE c1(x);
+  INSERT INTO c1(x) VALUES('a b c');
+  INSERT INTO c1(x) VALUES('d e f');
+}
+do_execsql_test 1.13.2 {
+  SELECT c1.*, input, t1.* FROM c1, t1 WHERE input = x AND c1.rowid=t1.rowid;
+} {
+  {a b c} {a b c} a 0 1 0 
+  {d e f} {d e f} e 2 3 1 
+}
+
+
+#-------------------------------------------------------------------------
+# Error cases.
+#
+do_catchsql_test 2.0 {
+  CREATE VIRTUAL TABLE tX USING fts5tokenize(nosuchtokenizer);
+} {1 {vtable constructor failed: tX}}
+
+do_catchsql_test 2.1 {
+  CREATE VIRTUAL TABLE t4 USING fts5tokenize;
+  SELECT * FROM t4;
+} {1 {SQL logic error}}
+
+#-------------------------------------------------------------------------
+# Embedded 0x00 characters.
+#
+reset_db
+do_execsql_test 3.1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(z);
+  CREATE VIRTUAL TABLE tt USING fts5vocab(t1, 'instance');
+  INSERT INTO t1 VALUES('abc' || char(0) || 'def');
+  SELECT * FROM tt;
+} { abc 1 z 0 def 1 z 1 }
+do_execsql_test 3.1.1 {
+  SELECT hex(z) FROM t1;
+} {61626300646566}
+do_execsql_test 3.1.2 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+} {}
+
+do_execsql_test 3.2.0 {
+  CREATE VIRTUAL TABLE t2 USING fts5(z, 
+      tokenize="unicode61 categories 'L* N* Co Cc'"
+  );
+  CREATE VIRTUAL TABLE tu USING fts5vocab(t2, 'instance');
+
+  INSERT INTO t2 VALUES('abc' || char(0) || 'def');
+  SELECT * FROM tu;
+} { abc 1 z 0 def 1 z 1 }
+
+do_execsql_test 3.2.1 {
+  SELECT hex(z) FROM t1;
+} {61626300646566}
+
+do_execsql_test 3.2.2 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+} {}
+
+
+finish_test
diff --git a/ext/fts5/test/fts5tok2.test b/ext/fts5/test/fts5tok2.test
new file mode 100644
index 0000000000000000000000000000000000000000..77c7e1ec8e647014bc5196d765043270f8102b16
--- /dev/null
+++ b/ext/fts5/test/fts5tok2.test
@@ -0,0 +1,47 @@
+# 2016 Jan 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+ifcapable !fts5||!fts3 { finish_test ; return }
+set ::testprefix fts5tok2
+
+sqlite3_fts5_register_fts5tokenize db
+
+#-------------------------------------------------------------------------
+# Simple test cases. Using the default (ascii) tokenizer.
+#
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t5 USING fts5tokenize(unicode61);
+  CREATE VIRTUAL TABLE t3 USING fts3tokenize(unicode61);
+}
+
+do_test 1.1 {
+  array unset -nocomplain A
+
+  for {set i 1} {$i < 65536} {incr i} {
+    set input [format "abc%cxyz" $i]
+      set expect [execsql {
+        SELECT input, token, start, end FROM t3 WHERE input=$input
+    }]
+
+    incr A([llength $expect])
+
+    set res [execsql {
+      SELECT input, token, start, end FROM t5($input)
+    }]
+    if {$res != $expect} {error "failed at i=$i"}
+  }
+} {}
+
+do_test 1.1.nTokenChars=$A(4).nSeparators=$A(8) {} {}
+
+finish_test
diff --git a/ext/fts5/test/fts5tokendata.test b/ext/fts5/test/fts5tokendata.test
new file mode 100644
index 0000000000000000000000000000000000000000..7f75f4fa8ed6ebc9825e8d402c71b14f086c3f56
--- /dev/null
+++ b/ext/fts5/test/fts5tokendata.test
@@ -0,0 +1,105 @@
+# 2014 Jan 08
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests focused on phrase queries.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5tokendata
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+foreach_detail_mode $testprefix {
+
+  sqlite3_fts5_register_origintext db
+  fts5_aux_test_functions db
+  proc b {x} { string map [list "\0" "."] $x }
+  db func b b
+
+  do_execsql_test 1.0 {
+    CREATE VIRTUAL TABLE ft USING fts5(a, b, tokendata=1,
+      tokenize="origintext unicode61", detail=%DETAIL%
+    );
+    CREATE VIRTUAL TABLE vocab USING fts5vocab(ft, instance);
+  }
+
+  do_execsql_test 1.1 {
+    INSERT INTO ft(rowid, a, b) VALUES
+      (1, 'Pedagog Pedal Pedant', 'Peculier Day Today'),
+      (2, 'Pedant pedantic pecked', 'Peck Penalize Pen');
+
+    INSERT INTO ft(rowid, a, b) VALUES
+      (3, 'Penalty Pence Penciled', 'One Two Three'),
+      (4, 'Pedant Pedal Pedant', 'Peculier Day Today');
+  }
+
+  do_execsql_test 1.2 {
+    SELECT DISTINCT b(term) FROM vocab
+  } {
+    day.Day one.One peck.Peck pecked peculier.Peculier pedagog.Pedagog
+    pedal.Pedal pedant.Pedant pedantic pen.Pen penalize.Penalize 
+    penalty.Penalty pence.Pence penciled.Penciled three.Three 
+    today.Today two.Two
+  }
+
+  do_execsql_test 1.3.1 {
+    SELECT rowid FROM ft('pe*')
+  } {
+    1 2 3 4
+  }
+
+  do_execsql_test 1.3.2 {
+    SELECT rowid FROM ft('pe*') ORDER BY rowid DESC
+  } {
+    4 3 2 1
+  }
+  
+  if {"%DETAIL%"!="none"} {
+    do_execsql_test 1.3.3 {
+      SELECT rowid FROM ft WHERE a MATCH 'pe*' ORDER BY rowid DESC
+    } {
+      4 3 2 1
+    }
+  }
+
+  do_execsql_test 1.4 {
+    SELECT rowid, b( fts5_test_insttoken(ft, 0, 0) ) FROM ft('pedant')
+  } {
+    1 pedant.Pedant
+    2 pedant.Pedant
+    4 pedant.Pedant
+  }
+
+  do_execsql_test 1.5 {
+    SELECT rowid, b( fts5_test_insttoken(ft, 0, 0) ) FROM ft('pe*')
+  } {
+    1 pedagog.Pedagog
+    2 pedant.Pedant
+    3 penalty.Penalty
+    4 pedant.Pedant
+  }
+
+  do_execsql_test 1.6 {
+    SELECT rowid, fts5_test_poslist(ft) FROM ft('pe*')
+  } {
+    1 {0.0.0 0.0.1 0.0.2 0.1.0} 
+    2 {0.0.0 0.0.1 0.0.2 0.1.0 0.1.1 0.1.2}
+    3 {0.0.0 0.0.1 0.0.2}
+    4 {0.0.0 0.0.1 0.0.2 0.1.0}
+  }
+}
+
+finish_test
+
diff --git a/ext/fts5/test/fts5tokenizer.test b/ext/fts5/test/fts5tokenizer.test
new file mode 100644
index 0000000000000000000000000000000000000000..a828e3a22b7b5bf054597753329015b258a740b0
--- /dev/null
+++ b/ext/fts5/test/fts5tokenizer.test
@@ -0,0 +1,374 @@
+# 2014 Dec 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests focusing on the built-in fts5 tokenizers. 
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5tokenizer
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE ft1 USING fts5(x, tokenize=porter);
+  DROP TABLE ft1;
+}
+do_execsql_test 1.1 {
+  CREATE VIRTUAL TABLE ft1 USING fts5(x, tokenize='porter');
+  DROP TABLE ft1;
+}
+do_execsql_test 1.2 {
+  CREATE VIRTUAL TABLE ft1 USING fts5(x, tokenize = porter);
+  DROP TABLE ft1;
+}
+do_execsql_test 1.3 {
+  CREATE VIRTUAL TABLE ft1 USING fts5(x, tokenize = 'porter');
+  DROP TABLE ft1;
+}
+do_execsql_test 1.4 {
+  CREATE VIRTUAL TABLE ft1 USING fts5(x, tokenize = 'porter ascii');
+  DROP TABLE ft1;
+}
+
+do_catchsql_test 1.5 {
+  CREATE VIRTUAL TABLE ft1 USING fts5(x, tokenize = 'nosuch');
+} {1 {no such tokenizer: nosuch}}
+
+do_catchsql_test 1.6 {
+  CREATE VIRTUAL TABLE ft1 USING fts5(x, tokenize = 'porter nosuch');
+} {1 {error in tokenizer constructor}}
+
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE ft1 USING fts5(x, tokenize=porter);
+  INSERT INTO ft1 VALUES('embedded databases');
+}
+do_execsql_test 2.1 { SELECT rowid FROM ft1 WHERE ft1 MATCH 'embedding' } 1
+do_execsql_test 2.2 { SELECT rowid FROM ft1 WHERE ft1 MATCH 'database' } 1
+do_execsql_test 2.3 { 
+  SELECT rowid FROM ft1 WHERE ft1 MATCH 'database embedding' 
+} 1
+
+proc tcl_create {args} { 
+  set ::targs $args
+  error "failed" 
+}
+sqlite3_fts5_create_tokenizer db tcl tcl_create
+
+foreach {tn directive expected} {
+  1 {tokenize='tcl a b c'}             {a b c}
+  2 {tokenize='tcl ''d'' ''e'' ''f'''} {d e f}
+  3 {tokenize="tcl 'g' 'h' 'i'"}       {g h i}
+  4 {tokenize = tcl}                   {}
+} {
+  do_catchsql_test 3.$tn.1 "
+    CREATE VIRTUAL TABLE ft2 USING fts5(x, $directive)
+  " {1 {error in tokenizer constructor}}
+  do_test 3.$tn.2 { set ::targs } $expected
+}
+
+do_catchsql_test 4.1 {
+  CREATE VIRTUAL TABLE ft2 USING fts5(x, tokenize = tcl abc);
+} {1 {parse error in "tokenize = tcl abc"}}
+do_catchsql_test 4.2 {
+  CREATE VIRTUAL TABLE ft2 USING fts5(x y)
+} {1 {unrecognized column option: y}}
+
+#-------------------------------------------------------------------------
+# Test the "separators" and "tokenchars" options a bit.
+#
+foreach {tn tokenizer} {1 ascii 2 unicode61} {
+  reset_db
+  set T "$tokenizer tokenchars ',.:' separators 'xyz'"
+  execsql "CREATE VIRTUAL TABLE t1 USING fts5(x, tokenize = \"$T\")"
+  do_execsql_test 5.$tn.1 {
+    INSERT INTO t1 VALUES('abcxdefyghizjkl.mno,pqr:stu/vwx+yz');
+  }
+  foreach {tn2 token res} {
+    1 abc 1     2 def 1     3 ghi 1    4 jkl {}
+    5 mno {}    6 pqr {}    7 stu {}   8 jkl.mno,pqr:stu 1
+    9 vw  1
+  } {
+    do_execsql_test 5.$tn.2.$tn2 "
+      SELECT rowid FROM t1 WHERE t1 MATCH '\"$token\"'
+    " $res
+  }
+}
+
+#-------------------------------------------------------------------------
+# Miscellaneous tests for the ascii tokenizer.
+#
+# 5.1.*: Test that the ascii tokenizer ignores non-ASCII characters in the
+#        'separators' option. But unicode61 does not.
+#
+# 5.2.*: An option without an argument is an error.
+#
+
+do_test 5.1.1 {
+  execsql "
+    CREATE VIRTUAL TABLE a1 USING fts5(x, tokenize=`ascii separators '\u1234'`);
+    INSERT INTO a1 VALUES('abc\u1234def');
+  "
+  execsql { SELECT rowid FROM a1 WHERE a1 MATCH 'def' } 
+} {}
+
+do_test 5.1.2 {
+  execsql "
+    CREATE VIRTUAL TABLE a2 USING fts5(
+        x, tokenize=`unicode61 separators '\u1234'`);
+    INSERT INTO a2 VALUES('abc\u1234def');
+  "
+  execsql { SELECT rowid FROM a2 WHERE a2 MATCH 'def' } 
+} {1}
+
+do_catchsql_test 5.2 {
+  CREATE VIRTUAL TABLE a3 USING fts5(x, y, tokenize = 'ascii tokenchars');
+} {1 {error in tokenizer constructor}}
+do_catchsql_test 5.3 {
+  CREATE VIRTUAL TABLE a3 USING fts5(x, y, tokenize = 'ascii opt arg');
+} {1 {error in tokenizer constructor}}
+
+#-------------------------------------------------------------------------
+# Test that the ASCII and unicode61 tokenizers both handle SQLITE_DONE 
+# correctly.
+#
+
+proc test_token_cb {varname token iStart iEnd} {
+  upvar $varname var
+  lappend var $token
+  if {[llength $var]==3} { return "SQLITE_DONE" }
+  return "SQLITE_OK"
+}
+
+proc tokenize {cmd} {
+  set res [list]
+  $cmd xTokenize [$cmd xColumnText 0] [list test_token_cb res]
+  set res
+}
+sqlite3_fts5_create_function db tokenize tokenize
+
+do_execsql_test 6.0 {
+  CREATE VIRTUAL TABLE x1 USING fts5(a, tokenize=ascii);
+  INSERT INTO x1 VALUES('q w e r t y');
+  INSERT INTO x1 VALUES('y t r e w q');
+  SELECT tokenize(x1) FROM x1 WHERE x1 MATCH 'e AND r';
+} {
+  {q w e} {y t r}
+}
+
+do_execsql_test 6.1 {
+  CREATE VIRTUAL TABLE x2 USING fts5(a, tokenize=unicode61);
+  INSERT INTO x2 VALUES('q w e r t y');
+  INSERT INTO x2 VALUES('y t r e w q');
+  SELECT tokenize(x2) FROM x2 WHERE x2 MATCH 'e AND r';
+} {
+  {q w e} {y t r}
+}
+
+
+#-------------------------------------------------------------------------
+# Miscellaneous tests for the unicode tokenizer.
+#
+do_catchsql_test 6.1 {
+  CREATE VIRTUAL TABLE a3 USING fts5(x, y, tokenize = 'unicode61 tokenchars');
+} {1 {error in tokenizer constructor}}
+do_catchsql_test 6.2 {
+  CREATE VIRTUAL TABLE a3 USING fts5(x, y, tokenize = 'unicode61 a b');
+} {1 {error in tokenizer constructor}}
+do_catchsql_test 6.3 {
+  CREATE VIRTUAL TABLE a3 USING fts5(
+    x, y, tokenize = 'unicode61 remove_diacritics 3'
+  );
+} {1 {error in tokenizer constructor}}
+do_catchsql_test 6.4 {
+  CREATE VIRTUAL TABLE a3 USING fts5(
+    x, y, tokenize = 'unicode61 remove_diacritics 10'
+  );
+} {1 {error in tokenizer constructor}}
+
+#-------------------------------------------------------------------------
+# Porter tokenizer with very large tokens.
+#
+set a [string repeat a 100]
+set b [string repeat b 500]
+set c [string repeat c 1000]
+do_execsql_test 7.0 {
+  CREATE VIRTUAL TABLE e5 USING fts5(x, tokenize=porter);
+  INSERT INTO e5 VALUES($a || ' ' || $b);
+  INSERT INTO e5 VALUES($b || ' ' || $c);
+  INSERT INTO e5 VALUES($c || ' ' || $a);
+}
+
+do_execsql_test 7.1 {SELECT rowid FROM e5 WHERE e5 MATCH $a} { 1 3 }
+do_execsql_test 7.2 {SELECT rowid FROM e5 WHERE e5 MATCH $b} { 1 2 }
+do_execsql_test 7.3 {SELECT rowid FROM e5 WHERE e5 MATCH $c} { 2 3 }
+
+#-------------------------------------------------------------------------
+# Test the 'separators' option with the unicode61 tokenizer.
+#
+do_execsql_test 8.1 {
+  BEGIN;
+  CREATE VIRTUAL TABLE e6 USING fts5(x,
+    tokenize="unicode61 separators ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+  );
+  INSERT INTO e6 VALUES('theAquickBbrownCfoxDjumpedWoverXtheYlazyZdog');
+  CREATE VIRTUAL TABLE e7 USING fts5vocab(e6, 'row');
+  SELECT term FROM e7;
+  ROLLBACK;
+} {
+  brown dog fox jumped lazy over quick the
+}
+
+do_execsql_test 8.2 [subst {
+  BEGIN;
+  CREATE VIRTUAL TABLE e6 USING fts5(x,
+    tokenize="unicode61 separators '\u0E01\u0E02\u0E03\u0E04\u0E05\u0E06\u0E07'"
+  );
+  INSERT INTO e6 VALUES('the\u0E01quick\u0E01brown\u0E01fox\u0E01' 
+                     || 'jumped\u0E01over\u0E01the\u0E01lazy\u0E01dog'
+  );
+  INSERT INTO e6 VALUES('\u0E08\u0E07\u0E09');
+  CREATE VIRTUAL TABLE e7 USING fts5vocab(e6, 'row');
+  SELECT term FROM e7;
+  ROLLBACK;
+}] [subst {
+  brown dog fox jumped lazy over quick the \u0E08 \u0E09
+}]
+
+# Test that the porter tokenizer correctly passes arguments through to
+# its parent tokenizer.
+do_execsql_test 8.3 {
+  BEGIN;
+  CREATE VIRTUAL TABLE e6 USING fts5(x,
+    tokenize="porter unicode61 separators ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+  );
+  INSERT INTO e6 VALUES('theAquickBbrownCfoxDjumpedWoverXtheYlazyZdog');
+  CREATE VIRTUAL TABLE e7 USING fts5vocab(e6, 'row');
+  SELECT term FROM e7;
+  ROLLBACK;
+} {
+  brown dog fox jump lazi over quick the
+}
+
+#-------------------------------------------------------------------------
+# Check that the FTS5_TOKENIZE_PREFIX flag is passed to the tokenizer
+# implementation.
+#
+reset_db
+proc tcl_create {args} { return "tcl_tokenize" }
+sqlite3_fts5_create_tokenizer db tcl tcl_create
+set ::flags [list]
+proc tcl_tokenize {tflags text} {
+  lappend ::flags $tflags
+  foreach {w iStart iEnd} [fts5_tokenize_split $text] {
+    sqlite3_fts5_token $w $iStart $iEnd
+  }
+}
+
+do_execsql_test 9.1.1 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, tokenize=tcl);
+  INSERT INTO t1 VALUES('abc');
+  INSERT INTO t1 VALUES('xyz');
+} {}
+do_test 9.1.2 { set ::flags } {document document}
+
+set ::flags [list]
+do_execsql_test 9.2.1 { SELECT * FROM t1('abc'); } {abc}
+do_test 9.2.2 { set ::flags } {query}
+
+set ::flags [list]
+do_execsql_test 9.3.1 { SELECT * FROM t1('ab*'); } {abc}
+do_test 9.3.2 { set ::flags } {prefixquery}
+
+set ::flags [list]
+do_execsql_test 9.4.1 { SELECT * FROM t1('"abc xyz" *'); } {}
+do_test 9.4.2 { set ::flags } {prefixquery}
+
+set ::flags [list]
+do_execsql_test 9.5.1 { SELECT * FROM t1('"abc xyz*"'); } {}
+do_test 9.5.2 { set ::flags } {query}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 10.1 {
+  CREATE VIRTUAL TABLE x1 USING fts5(x, tokenize=unicode61);
+  PRAGMA writable_schema = 1;
+  UPDATE sqlite_schema 
+  SET sql = 'CREATE VIRTUAL TABLE x1 USING fts5(x, tokenize="unicode61 error");'
+  WHERE name = 'x1';
+}
+
+db close
+sqlite3 db test.db
+
+do_catchsql_test 10.2 {
+  SELECT * FROM x1('abc');
+} {1 {error in tokenizer constructor}}
+
+do_catchsql_test 10.3 {
+  INSERT INTO x1 VALUES('abc');
+} {1 {error in tokenizer constructor}}
+
+do_execsql_test 10.4 {
+  PRAGMA writable_schema = 1;
+  UPDATE sqlite_schema 
+  SET sql = 'CREATE VIRTUAL TABLE x1 USING fts5(x, tokenize="nosuch error");'
+  WHERE name = 'x1';
+}
+
+db close
+sqlite3 db test.db
+
+do_catchsql_test 10.5 {
+  SELECT * FROM x1('abc');
+} {1 {no such tokenizer: nosuch}}
+do_catchsql_test 10.6 {
+  INSERT INTO x1 VALUES('abc');
+} {1 {no such tokenizer: nosuch}}
+
+do_execsql_test 10.7 {
+  DROP TABLE x1;
+  SELECT * FROM sqlite_schema;
+}
+
+reset_db
+do_execsql_test 10.8 {
+  CREATE VIRTUAL TABLE x1 USING fts5(x, tokenize=unicode61);
+  INSERT INTO x1 VALUES('a b c'), ('d e f'), ('a b c');
+  CREATE VIRTUAL TABLE x1v USING fts5vocab(x1, row);
+
+  PRAGMA writable_schema = 1;
+  UPDATE sqlite_schema 
+  SET sql = 'CREATE VIRTUAL TABLE x1 USING fts5(x, tokenize=simplify);'
+  WHERE name = 'x1';
+}
+
+do_execsql_test 10.9 {
+  SELECT * FROM x1v
+} {
+  a 2 2 b 2 2 c 2 2 d 1 1 e 1 1 f 1 1
+}
+
+db close
+sqlite3 db test.db
+
+do_execsql_test 10.10 {
+  SELECT * FROM x1v
+} {
+  a 2 2 b 2 2 c 2 2 d 1 1 e 1 1 f 1 1
+}
+
+finish_test
diff --git a/ext/fts5/test/fts5tokenizer2.test b/ext/fts5/test/fts5tokenizer2.test
new file mode 100644
index 0000000000000000000000000000000000000000..4fe31d22c4e77d832022b99da008fe8c09ec7377
--- /dev/null
+++ b/ext/fts5/test/fts5tokenizer2.test
@@ -0,0 +1,109 @@
+# 2023 Nov 03
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests focusing on the built-in fts5 tokenizers. 
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5tokenizer2
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+sqlite3_fts5_create_tokenizer db tst get_tst_tokenizer
+proc get_tst_tokenizer {args} {
+  return "tst_tokenizer"
+}
+proc tst_tokenizer {flags txt} {
+  set token ""
+  set lTok [list]
+
+  foreach c [split $txt {}] {
+    if {$token==""} {
+      append token $c
+    } else {
+      set t1 [string is upper $token]
+      set t2 [string is upper $c]
+
+      if {$t1!=$t2} {
+        lappend lTok $token
+        set token ""
+      }
+      append token $c
+    }
+  }
+  if {$token!=""} { lappend lTok $token }
+
+  set iOff 0
+  foreach t $lTok {
+    set n [string length $t]
+    sqlite3_fts5_token $t $iOff [expr $iOff+$n]
+    incr iOff $n
+  }
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(t, tokenize=tst);
+}
+
+do_execsql_test 1.1 {
+  INSERT INTO t1 VALUES('AAdontBBmess');
+}
+
+do_execsql_test 1.2 {
+  SELECT snippet(t1, 0, '>', '<', '...', 4) FROM t1('BB');
+} {AAdont>BB<mess}
+
+do_execsql_test 1.3 {
+  SELECT highlight(t1, 0, '>', '<') FROM t1('BB');
+} {AAdont>BB<mess}
+
+do_execsql_test 1.4 {
+  SELECT highlight(t1, 0, '>', '<') FROM t1('AA');
+} {>AA<dontBBmess}
+
+do_execsql_test 1.5 {
+  SELECT highlight(t1, 0, '>', '<') FROM t1('dont');
+} {AA>dont<BBmess}
+
+do_execsql_test 1.6 {
+  SELECT highlight(t1, 0, '>', '<') FROM t1('mess');
+} {AAdontBB>mess<}
+
+do_execsql_test 1.7 {
+  SELECT highlight(t1, 0, '>', '<') FROM t1('BB mess');
+} {AAdont>BBmess<}
+
+# 2024-08-06 https://sqlite.org/forum/forumpost/171bcc2bcd
+# Error handling of tokenize= arguments.
+#
+foreach {n tkz} {
+  1  {ascii none}
+  2  {unicode61 none}
+  3  {porter none}
+  4  {trigram none}
+  5  {ascii none 0}
+  6  {unicode61 none 0}
+  7  {porter none 0}
+  8  {trigram none 0}
+} {
+  db eval {DROP TABLE IF EXISTS t2;}
+  do_catchsql_test 2.$n "
+     DROP TABLE IF EXISTS t2;
+     CREATE VIRTUAL TABLE t2 USING fts5(a,b,c,tokenize='$tkz');
+  " {1 {error in tokenizer constructor}}
+}
+
+
+finish_test
diff --git a/ext/fts5/test/fts5tokenizer3.test b/ext/fts5/test/fts5tokenizer3.test
new file mode 100644
index 0000000000000000000000000000000000000000..5cdab743c2b218df2fd4a0e48c620d3f9d97e8f1
--- /dev/null
+++ b/ext/fts5/test/fts5tokenizer3.test
@@ -0,0 +1,77 @@
+# 2024 Aug 10
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests focusing on the built-in fts5 tokenizers. 
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5tokenizer3
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+
+proc get_sod {args} { return "split_on_dot" }
+proc get_lowercase    {args} { return "lowercase" }
+
+proc lowercase {flags txt} {
+  set n [string length $txt]
+  sqlite3_fts5_token [string tolower $txt] 0 $n
+  return 0
+}
+
+proc split_on_dot {flags txt} {
+  set iOff 0
+  foreach t [split $txt "."] {
+    set n [string length $txt]
+    sqlite3_fts5_token $t $iOff [expr $iOff+$n]
+    incr iOff [expr {$n+1}]
+  }
+  return ""
+}
+
+foreach {tn script} {
+  1 {
+    sqlite3_fts5_create_tokenizer db lowercase get_lowercase
+    sqlite3_fts5_create_tokenizer -parent lowercase db split_on_dot get_sod
+  }
+  2 {
+    sqlite3_fts5_create_tokenizer -v2 db lowercase get_lowercase
+    sqlite3_fts5_create_tokenizer -parent lowercase db split_on_dot get_sod
+  }
+  3 {
+    sqlite3_fts5_create_tokenizer db lowercase get_lowercase
+    sqlite3_fts5_create_tokenizer -v2 -parent lowercase db split_on_dot get_sod
+  }
+  4 {
+    sqlite3_fts5_create_tokenizer -v2 db lowercase get_lowercase
+    sqlite3_fts5_create_tokenizer -v2 -parent lowercase db split_on_dot get_sod
+  }
+} {
+  reset_db
+  eval $script
+
+  do_execsql_test 1.$tn.0 {
+    CREATE VIRTUAL TABLE t1 USING fts5(x, tokenize=split_on_dot);
+    CREATE VIRTUAL TABLE t1vocab USING fts5vocab(t1, instance);
+    INSERT INTO t1 VALUES('ABC.Def.ghi');
+  }
+
+  do_execsql_test 1.$tn.1 {
+    SELECT term FROM t1vocab ORDER BY 1
+  } {abc def ghi}
+}
+
+
+finish_test
diff --git a/ext/fts5/test/fts5trigram.test b/ext/fts5/test/fts5trigram.test
new file mode 100644
index 0000000000000000000000000000000000000000..377e3f7813308ff40943356695d1f250607bc44a
--- /dev/null
+++ b/ext/fts5/test/fts5trigram.test
@@ -0,0 +1,366 @@
+# 2020 September 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+# Tests for the fts5 "trigram" tokenizer.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+ifcapable !fts5 { finish_test ; return }
+set ::testprefix fts5trigram
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(y, tokenize=trigram);
+  INSERT INTO t1 VALUES('abcdefghijklm');
+  INSERT INTO t1 VALUES('กรุงเทพมหานคร');
+}
+
+foreach {tn s res} {
+  1 abc           "(abc)defghijklm"
+  2 defgh         "abc(defgh)ijklm"
+  3 abcdefghijklm "(abcdefghijklm)"
+  4 กรุ            "(กรุ)งเทพมหานคร"
+  5 งเทพมห        "กรุ(งเทพมห)านคร"
+  6 กรุงเทพมหานคร  "(กรุงเทพมหานคร)"
+  7 Abc           "(abc)defghijklm"
+  8 deFgh         "abc(defgh)ijklm"
+  9 aBcdefGhijKlm "(abcdefghijklm)"
+} {
+  do_execsql_test 1.1.$tn {
+    SELECT highlight(t1, 0, '(', ')') FROM t1($s)
+  } $res
+}
+
+do_execsql_test 1.2.0 {
+  SELECT fts5_expr('ABCD', 'tokenize=trigram')
+} {{"abc" + "bcd"}}
+
+do_execsql_test 1.2.1 {
+  SELECT * FROM t1 WHERE y LIKE ? ESCAPE 'a'
+}
+
+foreach {tn like res} {
+  1 {%cDef%}   1
+  2 {cDef%}    {}
+  3 {%f%}      1
+  4 {%f_h%}    1
+  5 {%f_g%}    {}
+  6 {abc%klm}  1
+  7 {ABCDEFG%} 1
+  8 {%รุงเ%}    2
+  9 {%งเ%}     2
+  10 {%"งเ"%}  {}
+} {
+  do_execsql_test 1.3.$tn {
+    SELECT rowid FROM t1 WHERE y LIKE $like
+  } $res
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(y, tokenize="trigram case_sensitive 1");
+  INSERT INTO t1 VALUES('abcdefghijklm');
+  INSERT INTO t1 VALUES('กรุงเทพมหานคร');
+}
+do_catchsql_test 2.0.1 {
+  CREATE VIRTUAL TABLE t2 USING fts5(z, tokenize='trigram case_sensitive');
+} {1 {error in tokenizer constructor}}
+
+foreach {tn s res} {
+  1 abc           "(abc)defghijklm"
+  2 defgh         "abc(defgh)ijklm"
+  3 abcdefghijklm "(abcdefghijklm)"
+  4 กรุ            "(กรุ)งเทพมหานคร"
+  5 งเทพมห        "กรุ(งเทพมห)านคร"
+  6 กรุงเทพมหานคร  "(กรุงเทพมหานคร)"
+  7 Abc           ""
+  8 deFgh         ""
+  9 aBcdefGhijKlm ""
+} {
+  do_execsql_test 2.1.$tn {
+    SELECT highlight(t1, 0, '(', ')') FROM t1($s)
+  } $res
+}
+foreach {tn like res} {
+  1 {%cDef%}   1
+  2 {cDef%}    {}
+  3 {%f%}      1
+  4 {%f_h%}    1
+  5 {%f_g%}    {}
+  6 {abc%klm}  1
+  7 {ABCDEFG%} 1
+  8 {%รุงเ%}    2
+} {
+  do_execsql_test 2.2.$tn {
+    SELECT rowid FROM t1 WHERE y LIKE $like
+  } $res
+}
+foreach {tn like res} {
+  1 {*cdef*}     1
+  2 {cdef*}      {}
+  3 {*f*}        1
+  4 {*f?h*}      1
+  5 {*f?g*}      {}
+  6 {abc*klm}    1
+  7 {abcdefg*}   1
+  8 {*รุงเ*}      2
+  9 {abc[d]efg*} 1
+ 10 {abc[]d]efg*} 1
+ 11 {abc[^]d]efg*} {}
+ 12 {abc[^]XYZ]efg*} 1
+} {
+  do_execsql_test 2.3.$tn {
+    SELECT rowid FROM t1 WHERE y GLOB $like
+  } $res
+}
+
+do_execsql_test 2.3.null.1 {
+  SELECT rowid FROM t1 WHERE y LIKE NULL
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_catchsql_test 3.1 {
+  CREATE VIRTUAL TABLE ttt USING fts5(c, tokenize="trigram case_sensitive 2");
+} {1 {error in tokenizer constructor}}
+do_catchsql_test 3.2 {
+  CREATE VIRTUAL TABLE ttt USING fts5(c, tokenize="trigram case_sensitive 11");
+} {1 {error in tokenizer constructor}}
+do_catchsql_test 3.3 {
+  CREATE VIRTUAL TABLE ttt USING fts5(c, "tokenize=trigram case_sensitive 1");
+} {0 {}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE t0 USING fts5(b, tokenize = "trigram");
+}
+do_execsql_test 4.1 {
+  INSERT INTO t0 VALUES (x'000b01');
+}
+do_execsql_test 4.2 {
+  INSERT INTO t0(t0) VALUES('integrity-check');
+}
+
+#-------------------------------------------------------------------------
+reset_db
+foreach_detail_mode $::testprefix {
+  foreach {ci} {0 1} {
+    reset_db
+    do_execsql_test 5.cs=$ci.0.1 "
+      CREATE VIRTUAL TABLE t1 USING fts5(
+          y, tokenize=\"trigram case_sensitive $ci\", detail=%DETAIL%
+      );
+    "
+    do_execsql_test 5.cs=$ci.0.2 {
+      INSERT INTO t1 VALUES('abcdefghijklm');
+      INSERT INTO t1 VALUES('กรุงเทพมหานคร');
+    }
+
+    foreach {tn like res} {
+      1 {%cDef%}   1
+      2 {cDef%}    {}
+      3 {%f%}      1
+      4 {%f_h%}    1
+      5 {%f_g%}    {}
+      6 {abc%klm}  1
+      7 {ABCDEFG%} 1
+      8 {%รุงเ%}    2
+    } {
+      do_execsql_test 5.cs=$ci.1.$tn {
+        SELECT rowid FROM t1 WHERE y LIKE $like
+      } $res
+    }
+  }
+}
+
+do_execsql_test 6.0 {
+  CREATE VIRTUAL TABLE ci0 USING fts5(x, tokenize="trigram");
+  CREATE VIRTUAL TABLE ci1 USING fts5(x, tokenize="trigram case_sensitive 1");
+}
+
+# LIKE and GLOB both work with case-insensitive tokenizers. Only GLOB works
+# with case-sensitive.
+do_eqp_test 6.1 {
+  SELECT * FROM ci0 WHERE x LIKE ?
+} {VIRTUAL TABLE INDEX 0:L0}
+do_eqp_test 6.2 {
+  SELECT * FROM ci0 WHERE x GLOB ?
+} {VIRTUAL TABLE INDEX 0:G0}
+do_eqp_test 6.3 {
+  SELECT * FROM ci1 WHERE x LIKE ?
+} {{SCAN ci1 VIRTUAL TABLE INDEX 0:}}
+do_eqp_test 6.4 {
+  SELECT * FROM ci1 WHERE x GLOB ?
+} {VIRTUAL TABLE INDEX 0:G0}
+do_eqp_test 6.5 {
+  SELECT * FROM ci1 WHERE x < ?
+} {{SCAN ci1 VIRTUAL TABLE INDEX 0:}}
+do_eqp_test 6.6 {
+  SELECT * FROM ci0 WHERE x < ?
+} {{SCAN ci0 VIRTUAL TABLE INDEX 0:}}
+
+reset_db
+do_execsql_test 7.0 {
+  CREATE VIRTUAL TABLE f USING FTS5(filename, tokenize="trigram");
+  INSERT INTO f (rowid, filename) VALUES 
+      (10, "giraffe.png"), 
+      (20, "жираф.png"), 
+      (30, "cat.png"), 
+      (40, "кот.png"), 
+      (50, "misic-🎵-.mp3");
+}
+do_execsql_test 7.1 {
+  SELECT rowid FROM f WHERE +filename GLOB '*ир*';
+} {20}
+do_execsql_test 7.2 {
+  SELECT rowid FROM f WHERE filename GLOB '*ир*';
+} {20}
+
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 8.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(y, tokenize=trigram);
+  INSERT INTO t1 VALUES('abcdefghijklm');
+}
+
+foreach {tn match res} {
+  1 "abc ghi"         "(abc)def(ghi)jklm"
+  2 "def ghi"         "abc(defghi)jklm"
+  3 "efg ghi"         "abcd(efghi)jklm"
+  4 "efghi"           "abcd(efghi)jklm"
+  5 "abcd jklm"       "(abcd)efghi(jklm)"
+  6 "ijkl jklm"       "abcdefgh(ijklm)"
+  7 "ijk ijkl hijk"   "abcdefg(hijkl)m"
+
+} {
+  do_execsql_test 8.1.$tn {
+    SELECT highlight(t1, 0, '(', ')') FROM t1($match)
+  } $res
+}
+
+do_execsql_test 8.2 {
+  CREATE VIRTUAL TABLE ft2 USING fts5(a, tokenize="trigram");
+  INSERT INTO ft2 VALUES('abc x cde');
+  INSERT INTO ft2 VALUES('abc cde');
+  INSERT INTO ft2 VALUES('abcde');
+}
+
+do_execsql_test 8.3 {
+  SELECT highlight(ft2, 0, '[', ']') FROM ft2 WHERE ft2 MATCH 'abc AND cde';
+} {
+  {[abc] x [cde]}
+  {[abc] [cde]}
+  {[abcde]}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 9.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(
+    a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, 
+    tokenize=trigram
+  );
+
+  INSERT INTO t1(rowid, a12) VALUES(111, 'thats a tricky case though');
+  INSERT INTO t1(rowid, a12) VALUES(222, 'the query planner cannot do');
+}
+
+do_execsql_test 9.1 {
+  SELECT rowid FROM t1 WHERE a12 LIKE '%tricky%'
+} {111}
+
+do_execsql_test 9.2 {
+  SELECT rowid FROM t1 WHERE a12 LIKE '%tricky%' AND a12 LIKE '%case%'
+} {111}
+
+do_execsql_test 9.3 {
+  SELECT rowid FROM t1 WHERE a12 LIKE NULL
+} {}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 10.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, tokenize=trigram);
+}
+
+do_test 10.1 {
+  foreach {val} {
+    "abc \UFFjkl\UFF"
+    "abc \UFFFjkl\UFFF"
+    "abc \UFFFFjkl\UFFFF"
+    "abc \UFFFFFjkl\UFFFFF"
+    "\UFFjkl\UFF abc"
+    "\UFFFjkl\UFFF abc"
+    "\UFFFFjkl\UFFFF abc"
+    "\UFFFFFjkl\UFFFFF abc"
+    "\U10001jkl\U10001 abc"
+  } {
+    execsql { INSERT INTO t1 VALUES( $val ) }
+  }
+} {}
+
+do_test 10.2 {
+  foreach {val} {
+    X'E18000626320646566'
+    X'61EDA0806320646566'
+    X'61EDA0806320646566'
+    X'61EFBFBE6320646566'
+    X'76686920E18000626320646566'
+    X'7668692061EDA0806320646566'
+    X'7668692061EDA0806320646566'
+    X'7668692061EFBFBE6320646566'
+  } {
+    execsql " INSERT INTO t1 VALUES( $val ) "
+  }
+} {}
+
+do_test 10.3 {
+  set a [binary format c* {0x61 0xF7 0xBF 0xBF 0xBF 0x62}]
+  set b [binary format c* {0x61 0xF7 0xBF 0xBF 0xBF 0xBF 0x62}]
+  set c [binary format c* {0x61 0xF7 0xBF 0xBF 0xBF 0xBF 0xBF 0x62}]
+  set d [binary format c* {0x61 0xF7 0xBF 0xBF 0xBF 0xBF 0xBF 0xBF 0x62}]
+  execsql {
+    INSERT INTO t1 VALUES($a);
+    INSERT INTO t1 VALUES($b);
+    INSERT INTO t1 VALUES($c);
+    INSERT INTO t1 VALUES($d);
+
+    INSERT INTO t1 VALUES('abcd' || $a);
+    INSERT INTO t1 VALUES('abcd' || $b);
+    INSERT INTO t1 VALUES('abcd' || $c);
+    INSERT INTO t1 VALUES('abcd' || $d);
+  }
+} {}
+
+do_execsql_test 11.0 {
+  CREATE VIRTUAL TABLE t4 USING fts5(y, tokenize=trigram);
+}
+sqlite3_fts5_register_str db
+do_execsql_test 11.1 {
+  INSERT INTO t4 VALUES( str('') );
+}
+
+do_test 12.0 {
+  sqlite3_fts5_tokenize db trigram "abcd"
+} {abc 0 3 bcd 1 4}
+
+do_test 12.1 {
+  sqlite3_fts5_tokenize db trigram "a"
+} {}
+
+do_test 12.2 {
+  sqlite3_fts5_tokenize db trigram ""
+} {}
+
+finish_test
+
diff --git a/ext/fts5/test/fts5trigram2.test b/ext/fts5/test/fts5trigram2.test
new file mode 100644
index 0000000000000000000000000000000000000000..c81684a22b9974e88d8bfa47b2d5bc4adb8b6a7f
--- /dev/null
+++ b/ext/fts5/test/fts5trigram2.test
@@ -0,0 +1,137 @@
+# 2023 October 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+# Tests for the fts5 "trigram" tokenizer.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+ifcapable !fts5 { finish_test ; return }
+set ::testprefix fts5trigram2
+
+do_execsql_test 1.0 "
+  CREATE VIRTUAL TABLE t1 USING fts5(y, tokenize='trigram remove_diacritics 1');
+  INSERT INTO t1 VALUES('abc\u0303defghijklm');
+  INSERT INTO t1 VALUES('a\u0303b\u0303c\u0303defghijklm');
+"
+do_catchsql_test 1.0.1 {
+  CREATE VIRTUAL TABLE t2 USING fts5(z, tokenize='trigram remove_diacritics');
+} {1 {error in tokenizer constructor}}
+
+do_execsql_test 1.1 {
+  SELECT highlight(t1, 0, '(', ')') FROM t1('abc');
+} [list \
+  "(abc\u0303)defghijklm"                          \
+  "(a\u0303b\u0303c\u0303)defghijklm"              \
+]
+
+do_execsql_test 1.2 {
+  SELECT highlight(t1, 0, '(', ')') FROM t1('bcde');
+} [list \
+  "a(bc\u0303de)fghijklm"                          \
+  "a\u0303(b\u0303c\u0303de)fghijklm"              \
+]
+
+do_execsql_test 1.3 {
+  SELECT highlight(t1, 0, '(', ')') FROM t1('cdef');
+} [list \
+  "ab(c\u0303def)ghijklm"                          \
+  "a\u0303b\u0303(c\u0303def)ghijklm"              \
+]
+
+do_execsql_test 1.4 {
+  SELECT highlight(t1, 0, '(', ')') FROM t1('def');
+} [list \
+  "abc\u0303(def)ghijklm"                          \
+  "a\u0303b\u0303c\u0303(def)ghijklm"              \
+]
+
+
+#-------------------------------------------------------------------------
+do_catchsql_test 2.0 {
+  CREATE VIRTUAL TABLE t2 USING fts5(
+      z, tokenize='trigram case_sensitive 1 remove_diacritics 1'
+  );
+} {1 {error in tokenizer constructor}}
+
+do_execsql_test 2.1 {
+  CREATE VIRTUAL TABLE t2 USING fts5(
+      z, tokenize='trigram case_sensitive 0 remove_diacritics 1'
+  );
+}
+do_execsql_test 2.2 "
+  INSERT INTO t2 VALUES('\u00E3bcdef');
+  INSERT INTO t2 VALUES('b\u00E3cdef');
+  INSERT INTO t2 VALUES('bc\u00E3def');
+  INSERT INTO t2 VALUES('bcd\u00E3ef');
+"
+
+do_execsql_test 2.3 {
+  SELECT highlight(t2, 0, '(', ')') FROM t2('abc');
+} "(\u00E3bc)def"
+do_execsql_test 2.4 {
+  SELECT highlight(t2, 0, '(', ')') FROM t2('bac');
+} "(b\u00E3c)def"
+do_execsql_test 2.5 {
+  SELECT highlight(t2, 0, '(', ')') FROM t2('bca');
+} "(bc\u00E3)def"
+do_execsql_test 2.6 "
+  SELECT highlight(t2, 0, '(', ')') FROM t2('\u00E3bc');
+" "(\u00E3bc)def"
+
+#-------------------------------------------------------------------------
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE t3 USING fts5(
+      z, tokenize='trigram remove_diacritics 1'
+  );
+} {}
+do_execsql_test 3.1 "
+  INSERT INTO t3 VALUES ('\u0303abc\u0303');
+"
+do_execsql_test 3.2 {
+  SELECT highlight(t3, 0, '(', ')') FROM t3('abc');
+} "\u0303(abc\u0303)"
+
+#-------------------------------------------------------------------------
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE t4 USING fts5(z, tokenize=trigram);
+} {}
+
+do_execsql_test 4.1 {
+  INSERT INTO t4 VALUES('ABCD');
+  INSERT INTO t4 VALUES('DEFG');
+} {}
+
+db close
+sqlite3 db test.db
+
+do_eqp_test 4.1 {
+  SELECT rowid FROM t4 WHERE z LIKE '%abc%'
+} {VIRTUAL TABLE INDEX 0:L0}
+
+do_execsql_test 4.2 {
+  SELECT rowid FROM t4 WHERE z LIKE '%abc%'
+} {1}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 5.0 {
+  CREATE VIRTUAL TABLE t5 USING fts5(
+      c1, tokenize='trigram', detail='none'
+  );
+  INSERT INTO t5(rowid, c1) VALUES(1, 'abc_____xyx_yxz');
+  INSERT INTO t5(rowid, c1) VALUES(2, 'abc_____xyxz');
+  INSERT INTO t5(rowid, c1) VALUES(3, 'ac_____xyxz');
+} {}
+do_execsql_test 5.1 {
+  SELECT rowid FROM t5 WHERE c1 LIKE 'abc%xyxz'
+} {2}
+
+finish_test
diff --git a/ext/fts5/test/fts5ubsan.test b/ext/fts5/test/fts5ubsan.test
new file mode 100644
index 0000000000000000000000000000000000000000..76382a1e154e34963b9d67b320151dae5c3a9ffc
--- /dev/null
+++ b/ext/fts5/test/fts5ubsan.test
@@ -0,0 +1,60 @@
+# 2022 August 9
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This test is focused on edge cases that cause ubsan errors.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5ubsan
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE x1 USING fts5(x);
+}
+
+set BIG    9000000000000000000
+set SMALL -9000000000000000000
+
+do_execsql_test 1.1 {
+  BEGIN;
+    INSERT INTO x1 (rowid, x) VALUES($BIG,   'aaa aba acc');
+    INSERT INTO x1 (rowid, x) VALUES($SMALL, 'aaa abc acb');
+  COMMIT;
+}
+
+do_execsql_test 1.2 {
+  SELECT rowid, x FROM x1('ab*');
+} [list $SMALL {aaa abc acb} $BIG {aaa aba acc}]
+
+do_execsql_test 1.3 {
+  SELECT rowid, x FROM x1('ac*');
+} [list $SMALL {aaa abc acb} $BIG {aaa aba acc}]
+
+reset_db
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE x1 USING fts5(x);
+}
+
+do_execsql_test 2.1 {
+  INSERT INTO x1 (rowid, x) VALUES($BIG,   'aaa aba acc');
+  INSERT INTO x1 (rowid, x) VALUES($SMALL, 'aaa abc acb');
+}
+
+do_execsql_test 2.2 {
+  INSERT INTO x1 (x1) VALUES('optimize');
+}
+
+finish_test
diff --git a/ext/fts5/test/fts5umlaut.test b/ext/fts5/test/fts5umlaut.test
new file mode 100644
index 0000000000000000000000000000000000000000..fa948107a368e5f356edb99b64294e38f1fe3b37
--- /dev/null
+++ b/ext/fts5/test/fts5umlaut.test
@@ -0,0 +1,65 @@
+# 2014 June 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS5 module.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5umlaut
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(x);
+  CREATE VIRTUAL TABLE t2 USING fts5(
+      x, 
+      tokenize="unicode61 remove_diacritics 2"
+  );
+}
+
+foreach {tn q res1 res2} {
+  1 "Hà Nội"                  0 1
+  2 "Hà Noi"                  1 1
+  3 "Ha Noi"                  1 1
+  4 "Ha N\u1ed9i"             0 1
+  5 "Ha N\u006fi"             1 1
+  6 "Ha N\u006f\u0302i"       1 1
+  7 "Ha N\u006f\u0323\u0302i" 1 1
+} {
+  do_execsql_test 1.$tn.1 {
+    DELETE FROM t1;
+    INSERT INTO t1(rowid, x) VALUES (1, 'Ha Noi');
+    SELECT count(*) FROM t1($q)
+  } $res1
+  do_execsql_test 1.$tn.2 {
+    DELETE FROM t1;
+    INSERT INTO t1(rowid, x) VALUES (1, $q);
+    SELECT count(*) FROM t1('Ha Noi')
+  } $res1
+
+  do_execsql_test 1.$tn.2 {
+    DELETE FROM t2;
+    INSERT INTO t2(rowid, x) VALUES (1, 'Ha Noi');
+    SELECT count(*) FROM t2($q)
+  } $res2
+  do_execsql_test 1.$tn.2 {
+    DELETE FROM t2;
+    INSERT INTO t2(rowid, x) VALUES (1, $q);
+    SELECT count(*) FROM t2('Ha Noi')
+  } $res2
+}
+
+finish_test
+
diff --git a/ext/fts5/test/fts5unicode.test b/ext/fts5/test/fts5unicode.test
new file mode 100644
index 0000000000000000000000000000000000000000..f10e0d02d843616e7d704e82d69b34bfb90fd50e
--- /dev/null
+++ b/ext/fts5/test/fts5unicode.test
@@ -0,0 +1,86 @@
+# 2014 Dec 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests focusing on the fts5 tokenizers
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5unicode
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+proc tokenize_test {tn tokenizer input output} {
+  uplevel [list do_test $tn [subst -nocommands {
+    set ret {}
+    foreach {z s e} [sqlite3_fts5_tokenize db {$tokenizer} {$input}] {
+      lappend ret [set z]
+    }
+    set ret
+  }] [list {*}$output]]
+}
+
+foreach {tn t} {1 ascii 2 unicode61} {
+  tokenize_test 1.$tn.0 $t {A B C D} {a b c d}
+  tokenize_test 1.$tn.1 $t {May you share freely,} {may you share freely}
+  tokenize_test 1.$tn.2 $t {..May...you.shAre.freely} {may you share freely}
+  tokenize_test 1.$tn.3 $t {} {}
+}
+
+#-------------------------------------------------------------------------
+# Check that "unicode61" really is the default tokenizer.
+#
+do_execsql_test 2.0 "
+  CREATE VIRTUAL TABLE t1 USING fts5(x);
+  CREATE VIRTUAL TABLE t2 USING fts5(x, tokenize = unicode61);
+  CREATE VIRTUAL TABLE t3 USING fts5(x, tokenize = ascii);
+  INSERT INTO t1 VALUES('\xC0\xC8\xCC');
+  INSERT INTO t2 VALUES('\xC0\xC8\xCC');
+  INSERT INTO t3 VALUES('\xC0\xC8\xCC');
+"
+do_execsql_test 2.1 "
+  SELECT 't1' FROM t1 WHERE t1 MATCH '\xE0\xE8\xEC';
+  SELECT 't2' FROM t2 WHERE t2 MATCH '\xE0\xE8\xEC';
+  SELECT 't3' FROM t3 WHERE t3 MATCH '\xE0\xE8\xEC';
+" {t1 t2}
+
+#-------------------------------------------------------------------------
+# Check that codepoints that require 4 bytes to store in utf-8 (those that
+# require 17 or more bits to store).
+#
+
+unset -nocomplain A B C D
+set A [db one {SELECT char(0x1F75E)}]    ;# Type So
+set B [db one {SELECT char(0x1F5FD)}]    ;# Type So
+set C [db one {SELECT char(0x2F802)}]    ;# Type Lo
+set D [db one {SELECT char(0x2F808)}]    ;# Type Lo
+
+do_execsql_test 3.0 "
+  CREATE VIRTUAL TABLE xyz USING fts5(x,
+    tokenize = \"unicode61 separators '$C' tokenchars '$A'\"
+  );
+  CREATE VIRTUAL TABLE xyz_v USING fts5vocab(xyz, row);
+
+  INSERT INTO xyz VALUES('$A$B$C$D');
+"
+
+do_execsql_test 3.1 {
+  SELECT * FROM xyz_v;
+} [list $A 1 1 $D 1 1]
+  
+
+
+
+
+finish_test
diff --git a/ext/fts5/test/fts5unicode2.test b/ext/fts5/test/fts5unicode2.test
new file mode 100644
index 0000000000000000000000000000000000000000..7a49a1d83fe0b16c01ba1f2687fffe79893dcb55
--- /dev/null
+++ b/ext/fts5/test/fts5unicode2.test
@@ -0,0 +1,493 @@
+# 2012 May 25
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+# The tests in this file focus on testing the "unicode" FTS tokenizer.
+#
+# This is a modified copy of FTS4 test file "fts4_unicode.test".
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5unicode2
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+proc do_unicode_token_test {tn input res} {
+  uplevel [list do_test $tn [list \
+    sqlite3_fts5_tokenize -subst db "unicode61 remove_diacritics 0" $input
+  ] [list {*}$res]]
+}
+
+proc do_unicode_token_test2 {tn input res} {
+  uplevel [list do_test $tn [list \
+    sqlite3_fts5_tokenize -subst db "unicode61" $input
+  ] [list {*}$res]]
+}
+
+proc do_unicode_token_test3 {tn args} {
+  set tokenizer [concat unicode61 {*}[lrange $args 0 end-2]]
+  set input [lindex $args end-1]
+  set res [lindex $args end]
+  uplevel [list do_test $tn [list \
+    sqlite3_fts5_tokenize -subst db $tokenizer $input
+  ] [list {*}$res]]
+}
+
+do_unicode_token_test 1.0 {a B c D} {a a b B c c d D}
+
+do_unicode_token_test 1.1 "\uC4 \uD6 \uDC" \
+    "\uE4 \uC4 \uF6 \uD6 \uFC \uDC"
+
+do_unicode_token_test 1.2 "x\uC4x x\uD6x x\uDCx" \
+    "x\uE4x x\uC4x x\uF6x x\uD6x x\uFCx x\uDCx"
+
+# 0x00DF is a small "sharp s". 0x1E9E is a capital sharp s.
+do_unicode_token_test 1.3 "\uDF" "\uDF \uDF"
+do_unicode_token_test 1.4 "\u1E9E" "\uDF \u1E9E"
+
+do_unicode_token_test 1.5 "The quick brown fox" {
+  the The quick quick brown brown fox fox
+}
+do_unicode_token_test 1.6 "The\u00bfquick\u224ebrown\u2263fox" {
+  the The quick quick brown brown fox fox
+}
+
+do_unicode_token_test2 1.7  {a B c D} {a a b B c c d D}
+do_unicode_token_test2 1.8  "\uC4 \uD6 \uDC" "a \uC4 o \uD6 u \uDC"
+
+do_unicode_token_test2 1.9  "x\uC4x x\uD6x x\uDCx" \
+    "xax x\uC4x xox x\uD6x xux x\uDCx"
+
+# Check that diacritics are removed if remove_diacritics=1 is specified.
+# And that they do not break tokens.
+do_unicode_token_test2 1.10 "xx\u0301xx" "xxxx xx\u301xx"
+
+# Title-case mappings work
+do_unicode_token_test 1.11 "\u01c5" "\u01c6 \u01c5"
+
+do_unicode_token_test 1.12 "\u00C1abc\u00C2 \u00D1def\u00C3" \
+    "\u00E1abc\u00E2 \u00C1abc\u00C2 \u00F1def\u00E3 \u00D1def\u00C3"
+
+do_unicode_token_test 1.13 "\u00A2abc\u00A3 \u00A4def\u00A5" \
+    "abc abc def def"
+
+#-------------------------------------------------------------------------
+#
+set docs [list {
+  Enhance the INSERT syntax to allow multiple rows to be inserted via the
+  VALUES clause.
+} {
+  Enhance the CREATE VIRTUAL TABLE command to support the IF NOT EXISTS clause.
+} {
+  Added the sqlite3_stricmp() interface as a counterpart to sqlite3_strnicmp().
+} {
+  Added the sqlite3_db_readonly() interface.
+} {
+  Added the SQLITE_FCNTL_PRAGMA file control, giving VFS implementations the
+  ability to add new PRAGMA statements or to override built-in PRAGMAs.  
+} {
+  Queries of the form: "SELECT max(x), y FROM table" returns the value of y on
+  the same row that contains the maximum x value.
+} {
+  Added support for the FTS4 languageid option.
+} {
+  Documented support for the FTS4 content option. This feature has actually
+  been in the code since version 3.7.9 but is only now considered to be
+  officially supported.  
+} {
+  Pending statements no longer block ROLLBACK. Instead, the pending statement
+  will return SQLITE_ABORT upon next access after the ROLLBACK.  
+} {
+  Improvements to the handling of CSV inputs in the command-line shell
+} {
+  Fix a bug introduced in version 3.7.10 that might cause a LEFT JOIN to be
+  incorrectly converted into an INNER JOIN if the WHERE clause indexable terms
+  connected by OR.  
+}]
+
+unset -nocomplain map
+set map(a) [list "\u00C4" "\u00E4"]  ; # LATIN LETTER A WITH DIAERESIS
+set map(e) [list "\u00CB" "\u00EB"]  ; # LATIN LETTER E WITH DIAERESIS
+set map(i) [list "\u00CF" "\u00EF"]  ; # LATIN LETTER I WITH DIAERESIS
+set map(o) [list "\u00D6" "\u00F6"]  ; # LATIN LETTER O WITH DIAERESIS
+set map(u) [list "\u00DC" "\u00FC"]  ; # LATIN LETTER U WITH DIAERESIS
+set map(y) [list "\u0178" "\u00FF"]  ; # LATIN LETTER Y WITH DIAERESIS
+set map(h) [list "\u1E26" "\u1E27"]  ; # LATIN LETTER H WITH DIAERESIS
+set map(w) [list "\u1E84" "\u1E85"]  ; # LATIN LETTER W WITH DIAERESIS
+set map(x) [list "\u1E8C" "\u1E8D"]  ; # LATIN LETTER X WITH DIAERESIS
+foreach k [array names map] {
+  lappend mappings [string toupper $k] [lindex $map($k) 0] 
+  lappend mappings $k [lindex $map($k) 1]
+}
+proc mapdoc {doc} { 
+  set doc [regsub -all {[[:space:]]+} $doc " "]
+  string map $::mappings [string trim $doc] 
+}
+
+do_test 2.0 {
+  execsql { CREATE VIRTUAL TABLE t2 USING fts5(tokenize=unicode61, x); }
+  foreach doc $docs {
+    set d [mapdoc $doc]
+    execsql { INSERT INTO t2 VALUES($d) }
+  }
+} {}
+
+do_test 2.1 {
+  set q [mapdoc "row"]
+  execsql { SELECT * FROM t2 WHERE t2 MATCH $q }
+} [list [mapdoc {
+  Queries of the form: "SELECT max(x), y FROM table" returns the value of y on
+  the same row that contains the maximum x value.
+}]]
+
+foreach {tn query snippet} {
+  2 "row" {
+     ...returns the value of y on the same [row] that contains 
+     the maximum x value.
+  }
+  3 "ROW" {
+     ...returns the value of y on the same [row] that contains 
+     the maximum x value.
+  }
+  4 "rollback" {
+     Pending statements no longer block [ROLLBACK]. Instead, the pending
+     statement will return SQLITE_ABORT upon...
+  }
+  5 "rOllback" {
+     Pending statements no longer block [ROLLBACK]. Instead, the pending
+     statement will return SQLITE_ABORT upon...
+  }
+  6 "lang*" {
+     Added support for the FTS4 [languageid] option.
+  }
+} {
+  do_test 2.$tn {
+    set q [mapdoc $query]
+    execsql { 
+      SELECT snippet(t2, -1, '[', ']', '...', 15) FROM t2 WHERE t2 MATCH $q 
+    }
+  } [list [mapdoc $snippet]]
+}
+
+#-------------------------------------------------------------------------
+# Make sure the unicode61 tokenizer does not crash if it is passed a 
+# NULL pointer.
+reset_db
+do_execsql_test 3.1 {
+  CREATE VIRTUAL TABLE t1 USING fts5(tokenize=unicode61, x, y);
+  INSERT INTO t1 VALUES(NULL, 'a b c');
+}
+
+do_execsql_test 3.2 {
+  SELECT snippet(t1, -1, '[', ']', '...', 15) FROM t1 WHERE t1 MATCH 'b'
+} {{a [b] c}}
+
+do_execsql_test 3.3 {
+  BEGIN;
+  DELETE FROM t1;
+  INSERT INTO t1 VALUES('b b b b b b b b b b b', 'b b b b b b b b b b b b b');
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 VALUES('a b c', NULL);
+  INSERT INTO t1 VALUES('a x c', NULL);
+  COMMIT;
+}
+
+do_execsql_test 3.4 {
+  SELECT * FROM t1 WHERE t1 MATCH 'a b';
+} {{a b c} {}}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+
+do_test 4.1 {
+  set a "abc\uFFFEdef"
+  set b "abc\uD800def"
+  set c "\uFFFEdef"
+  set d "\uD800def"
+  execsql {
+    CREATE VIRTUAL TABLE t1 USING fts5(tokenize=unicode61, x);
+    INSERT INTO t1 VALUES($a);
+    INSERT INTO t1 VALUES($b);
+    INSERT INTO t1 VALUES($c);
+    INSERT INTO t1 VALUES($d);
+  }
+
+  execsql "CREATE VIRTUAL TABLE t8 USING fts5(
+      a, b, tokenize=\"unicode61 separators '\uFFFE\uD800\u00BF'\"
+  )"
+} {}
+
+do_test 4.2 {
+  set a [binary format c* {0x61 0xF7 0xBF 0xBF 0xBF 0x62}]
+  set b [binary format c* {0x61 0xF7 0xBF 0xBF 0xBF 0xBF 0x62}]
+  set c [binary format c* {0x61 0xF7 0xBF 0xBF 0xBF 0xBF 0xBF 0x62}]
+  set d [binary format c* {0x61 0xF7 0xBF 0xBF 0xBF 0xBF 0xBF 0xBF 0x62}]
+  execsql {
+    INSERT INTO t1 VALUES($a);
+    INSERT INTO t1 VALUES($b);
+    INSERT INTO t1 VALUES($c);
+    INSERT INTO t1 VALUES($d);
+  }
+} {}
+
+do_test 4.3 {
+  set a [binary format c* {0xF7 0xBF 0xBF 0xBF}]
+  set b [binary format c* {0xF7 0xBF 0xBF 0xBF 0xBF}]
+  set c [binary format c* {0xF7 0xBF 0xBF 0xBF 0xBF 0xBF}]
+  set d [binary format c* {0xF7 0xBF 0xBF 0xBF 0xBF 0xBF 0xBF}]
+  execsql {
+    INSERT INTO t1 VALUES($a);
+    INSERT INTO t1 VALUES($b);
+    INSERT INTO t1 VALUES($c);
+    INSERT INTO t1 VALUES($d);
+  }
+} {}
+
+do_test 4.4 {
+  sqlite3_exec_hex db {
+    CREATE VIRTUAL TABLE t9 USING fts5(a, b, 
+      tokenize="unicode61 separators '%C09004'"
+    );
+    INSERT INTO t9(a) VALUES('abc%88def %89ghi%90');
+  }
+} {0 {}}
+
+
+#-------------------------------------------------------------------------
+
+do_unicode_token_test3 5.1 {tokenchars {}} {
+  sqlite3_reset sqlite3_column_int
+} {
+  sqlite3 sqlite3 
+  reset reset 
+  sqlite3 sqlite3 
+  column column 
+  int int
+}
+
+do_unicode_token_test3 5.2 {tokenchars _} {
+  sqlite3_reset sqlite3_column_int
+} {
+  sqlite3_reset sqlite3_reset 
+  sqlite3_column_int sqlite3_column_int
+}
+
+do_unicode_token_test3 5.3 {separators xyz} {
+  Laotianxhorseyrunszfast
+} {
+  laotian Laotian
+  horse horse
+  runs runs
+  fast fast
+}
+
+do_unicode_token_test3 5.4 {tokenchars xyz} {
+  Laotianxhorseyrunszfast
+} {
+  laotianxhorseyrunszfast Laotianxhorseyrunszfast
+}
+
+do_unicode_token_test3 5.5 {tokenchars _} {separators zyx} {
+  sqlite3_resetxsqlite3_column_intyhonda_phantom
+} {
+  sqlite3_reset sqlite3_reset 
+  sqlite3_column_int sqlite3_column_int
+  honda_phantom honda_phantom
+}
+
+do_unicode_token_test3 5.6 "separators \u05D1" "abc\u05D1def" {
+  abc abc def def
+}
+
+do_unicode_token_test3 5.7                             \
+  "tokenchars \u2444\u2445"                            \
+  "separators \u05D0\u05D1\u05D2"                      \
+  "\u2444fre\u2445sh\u05D0water\u05D2fish.\u2445timer" \
+  [list                                                \
+    \u2444fre\u2445sh \u2444fre\u2445sh              \
+    water water                                      \
+    fish fish                                        \
+    \u2445timer \u2445timer                          \
+  ]
+
+# Check that it is not possible to add a standalone diacritic codepoint 
+# to either separators or tokenchars.
+do_unicode_token_test3 5.8 "separators \u0301" \
+  "hello\u0301world \u0301helloworld"          \
+  "helloworld hello\u0301world helloworld helloworld"
+
+do_unicode_token_test3 5.9 "tokenchars \u0301" \
+  "hello\u0301world \u0301helloworld"          \
+  "helloworld hello\u0301world helloworld helloworld"
+
+do_unicode_token_test3 5.10 "separators \u0301" \
+  "remove_diacritics 0"                        \
+  "hello\u0301world \u0301helloworld"          \
+  "hello\u0301world hello\u0301world helloworld helloworld"
+
+do_unicode_token_test3 5.11 "tokenchars \u0301" \
+  "remove_diacritics 0"                         \
+  "hello\u0301world \u0301helloworld"           \
+  "hello\u0301world hello\u0301world helloworld helloworld"
+
+#-------------------------------------------------------------------------
+
+proc do_tokenize {tokenizer txt} {
+  set res [list]
+  foreach {b c} [sqlite3_fts5_tokenize -subst db $tokenizer $txt] {
+    lappend res $b
+  }
+  set res
+}
+
+# Argument $lCodepoint must be a list of codepoints (integers) that 
+# correspond to whitespace characters. This command creates a string
+# $W from the codepoints, then tokenizes "${W}hello{$W}world${W}" 
+# using tokenizer $tokenizer. The test passes if the tokenizer successfully
+# extracts the two 5 character tokens.
+#
+proc do_isspace_test {tn tokenizer lCp} {
+  set whitespace [format [string repeat %c [llength $lCp]] {*}$lCp] 
+  set txt "${whitespace}hello${whitespace}world${whitespace}"
+  uplevel [list do_test $tn [list do_tokenize $tokenizer $txt] {hello world}]
+}
+
+set tokenizers [list unicode61]
+#ifcapable icu { lappend tokenizers icu }
+
+# Some tests to check that the tokenizers can both identify white-space 
+# codepoints. All codepoints tested below are of type "Zs" in the
+# UnicodeData.txt file.
+foreach T $tokenizers {
+  do_isspace_test 6.$T.1 $T    32
+  do_isspace_test 6.$T.2 $T    160
+  do_isspace_test 6.$T.3 $T    5760
+  do_isspace_test 6.$T.4 $T    6158
+  do_isspace_test 6.$T.5 $T    8192
+  do_isspace_test 6.$T.6 $T    8193
+  do_isspace_test 6.$T.7 $T    8194
+  do_isspace_test 6.$T.8 $T    8195
+  do_isspace_test 6.$T.9 $T    8196
+  do_isspace_test 6.$T.10 $T    8197
+  do_isspace_test 6.$T.11 $T    8198
+  do_isspace_test 6.$T.12 $T    8199
+  do_isspace_test 6.$T.13 $T    8200
+  do_isspace_test 6.$T.14 $T    8201
+  do_isspace_test 6.$T.15 $T    8202
+  do_isspace_test 6.$T.16 $T    8239
+  do_isspace_test 6.$T.17 $T    8287
+  do_isspace_test 6.$T.18 $T   12288
+
+  do_isspace_test 6.$T.19 $T   {32 160 5760 6158}
+  do_isspace_test 6.$T.20 $T   {8192 8193 8194 8195}
+  do_isspace_test 6.$T.21 $T   {8196 8197 8198 8199}
+  do_isspace_test 6.$T.22 $T   {8200 8201 8202 8239}
+  do_isspace_test 6.$T.23 $T   {8287 12288}
+}
+
+
+#-------------------------------------------------------------------------
+# Test that the private use ranges are treated as alphanumeric.
+#
+foreach {tn1 c} {
+  1 \ue000 2 \ue001 3 \uf000 4 \uf8fe 5 \uf8ff
+} {
+  foreach {tn2 config res} {
+    1 ""             "hello*world hello*world"
+    2 "separators *" "hello hello world world"
+  } {
+    set config [string map [list * $c] $config]
+    set input  [string map [list * $c] "hello*world"]
+    set output [string map [list * $c] $res]
+    do_unicode_token_test3 7.$tn1.$tn2 {*}$config $input $output
+  }
+}
+
+#-------------------------------------------------------------------------
+# Cursory test of remove_diacritics=0.
+#
+# 00C4;LATIN CAPITAL LETTER A WITH DIAERESIS
+# 00D6;LATIN CAPITAL LETTER O WITH DIAERESIS
+# 00E4;LATIN SMALL LETTER A WITH DIAERESIS
+# 00F6;LATIN SMALL LETTER O WITH DIAERESIS
+#
+do_execsql_test 8.1.1 "
+  CREATE VIRTUAL TABLE t3 USING fts5(
+    content, tokenize='unicode61 remove_diacritics 1'
+  );
+  INSERT INTO t3 VALUES('o');
+  INSERT INTO t3 VALUES('a');
+  INSERT INTO t3 VALUES('O');
+  INSERT INTO t3 VALUES('A');
+  INSERT INTO t3 VALUES('\xD6');
+  INSERT INTO t3 VALUES('\xC4');
+  INSERT INTO t3 VALUES('\xF6');
+  INSERT INTO t3 VALUES('\xE4');
+"
+do_execsql_test 8.1.2 {
+  SELECT rowid FROM t3 WHERE t3 MATCH 'o' ORDER BY rowid ASC;
+} {1 3 5 7}
+do_execsql_test 8.1.3 {
+  SELECT rowid FROM t3 WHERE t3 MATCH 'a' ORDER BY rowid ASC;
+} {2 4 6 8}
+do_execsql_test 8.2.1 {
+  CREATE VIRTUAL TABLE t4 USING fts5(
+    content, tokenize='unicode61 remove_diacritics 0'
+  );
+  INSERT INTO t4 SELECT * FROM t3 ORDER BY rowid ASC;
+}
+do_execsql_test 8.2.2 {
+  SELECT rowid FROM t4 WHERE t4 MATCH 'o' ORDER BY rowid ASC;
+} {1 3}
+do_execsql_test 8.2.3 {
+  SELECT rowid FROM t4 WHERE t4 MATCH 'a' ORDER BY rowid ASC;
+} {2 4}
+
+#-------------------------------------------------------------------------
+
+foreach {tn val bErr} {
+  1 0 0
+  2 1 0
+  3 2 0
+  4 3  1
+  5 11 1
+} {
+  reset_db
+  set aRes(0) {0 {}}
+  set aRes(1) {1 {error in tokenizer constructor}}
+  set res $aRes($bErr)
+  do_catchsql_test 9.1.$tn "
+    CREATE VIRTUAL TABLE bl USING fts5(
+        s, tokenize='trigram remove_diacritics $val'
+    );
+  " $res
+}
+
+finish_test
diff --git a/ext/fts5/test/fts5unicode3.test b/ext/fts5/test/fts5unicode3.test
new file mode 100644
index 0000000000000000000000000000000000000000..ddb61a9997d1d511c645620698cc7faa0b176740
--- /dev/null
+++ b/ext/fts5/test/fts5unicode3.test
@@ -0,0 +1,140 @@
+# 2014 Dec 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests focusing on the fts5 tokenizers
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+proc fts3_unicode_path {file} {
+  file join .. [file dirname [info script]] .. .. fts3 unicode $file
+}
+
+source [fts3_unicode_path parseunicode.tcl]
+set testprefix fts5unicode3
+
+set CF [fts3_unicode_path CaseFolding.txt]
+set UD [fts3_unicode_path UnicodeData.txt]
+
+tl_load_casefolding_txt $CF
+foreach x [an_load_unicodedata_text $UD] {
+  set aNotAlnum($x) 1
+}
+
+foreach {y} [rd_load_unicodedata_text $UD] {
+  foreach {code ascii f} $y {}
+  if {$ascii==""} {
+    set int 0
+  } else {
+    binary scan $ascii c int
+  }
+  set aDiacritic($code,$f) $int
+  if {$f==0} { set aDiacritic($code,1) $int }
+}
+
+proc tcl_fold {i {bRemoveDiacritic 0}} {
+  global tl_lookup_table
+  global aDiacritic
+  set f [expr $bRemoveDiacritic==2]
+
+  if {[info exists tl_lookup_table($i)]} {
+    set i $tl_lookup_table($i)
+  }
+  if {$bRemoveDiacritic && [info exists aDiacritic($i,$f)]} {
+    set i $aDiacritic($i,$f)
+  }
+  expr $i
+}
+db func tcl_fold tcl_fold
+
+proc tcl_isalnum {i} {
+  global aNotAlnum
+  expr {![info exists aNotAlnum($i)]}
+}
+db func tcl_isalnum tcl_isalnum
+
+
+do_catchsql_test 1.0.1 {
+  SELECT fts5_isalnum(1, 2, 3);
+} {1 {wrong number of arguments to function fts5_isalnum}}
+do_catchsql_test 1.0.2 {
+  SELECT fts5_fold();
+} {1 {wrong number of arguments to function fts5_fold}}
+do_catchsql_test 1.0.3 {
+  SELECT fts5_fold(1,2,3);
+} {1 {wrong number of arguments to function fts5_fold}}
+
+do_execsql_test 1.1 {
+  WITH ii(i) AS (
+    SELECT -1
+    UNION ALL
+    SELECT i+1 FROM ii WHERE i<100000
+  )
+  SELECT count(*), min(i) FROM ii WHERE fts5_fold(i)!=CAST(tcl_fold(i) AS int);
+} {0 {}}
+
+do_execsql_test 1.2.1 {
+  WITH ii(i) AS (
+    SELECT -1
+    UNION ALL
+    SELECT i+1 FROM ii WHERE i<100000
+  )
+  SELECT count(*), min(i) FROM ii 
+  WHERE fts5_fold(i,1)!=CAST(tcl_fold(i,1) AS int);
+} {0 {}}
+
+do_execsql_test 1.2.2 {
+  WITH ii(i) AS (
+    SELECT -1
+    UNION ALL
+    SELECT i+1 FROM ii WHERE i<100000
+  )
+  SELECT count(*), min(i) FROM ii 
+  WHERE fts5_fold(i,2)!=CAST(tcl_fold(i,2) AS int);
+} {0 {}}
+
+do_execsql_test 1.3 {
+  WITH ii(i) AS (
+    SELECT -1
+    UNION ALL
+    SELECT i+1 FROM ii WHERE i<100000
+  )
+  SELECT count(*), min(i) FROM ii 
+  WHERE fts5_isalnum(i)!=CAST(tcl_isalnum(i) AS int);
+} {0 {}}
+
+do_test 1.4 {
+  set str {CREATE VIRTUAL TABLE f3 USING fts5(a, tokenize=}
+  append str {"unicode61 separators '}
+  for {set i 700} {$i<900} {incr i} {
+    append str [format %c $i]
+  }
+  append str {'");}
+  execsql $str
+} {}
+do_test 1.5 {
+  set str {CREATE VIRTUAL TABLE f5 USING fts5(a, tokenize=}
+  append str {"unicode61 tokenchars '}
+  for {set i 700} {$i<900} {incr i} {
+    append str [format %c $i]
+  }
+  append str {'");}
+  execsql $str
+} {}
+
+
+finish_test
diff --git a/ext/fts5/test/fts5unicode4.test b/ext/fts5/test/fts5unicode4.test
new file mode 100644
index 0000000000000000000000000000000000000000..dc225cb5e28f389930fb1b54da5e425e06a61af4
--- /dev/null
+++ b/ext/fts5/test/fts5unicode4.test
@@ -0,0 +1,31 @@
+# 2018 July 25
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5unicode4
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE sss USING fts5(a, prefix=3); 
+}
+
+do_execsql_test 1.1 {
+  INSERT INTO sss VALUES('まりや');
+}
+
+finish_test
diff --git a/ext/fts5/test/fts5unindexed.test b/ext/fts5/test/fts5unindexed.test
new file mode 100644
index 0000000000000000000000000000000000000000..5099a896937338bbd0471f8c7c0f1ee59c68902f
--- /dev/null
+++ b/ext/fts5/test/fts5unindexed.test
@@ -0,0 +1,78 @@
+# 2015 Apr 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# The tests in this file focus on "unindexed" columns.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5unindexed
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+
+do_execsql_test 1.1 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, b UNINDEXED);
+  INSERT INTO t1 VALUES('a b c', 'd e f');
+  INSERT INTO t1 VALUES('g h i', 'j k l');
+} {}
+
+do_execsql_test 1.2 { SELECT rowid FROM t1 WHERE t1 MATCH 'b' } {1}
+do_execsql_test 1.3 { SELECT rowid FROM t1 WHERE t1 MATCH 'e' } {}
+
+do_execsql_test 1.4 { INSERT INTO t1(t1) VALUES('integrity-check') } {}
+do_execsql_test 1.5 { INSERT INTO t1(t1) VALUES('rebuild') } {}
+do_execsql_test 1.6 { INSERT INTO t1(t1) VALUES('integrity-check') } {}
+
+do_execsql_test 1.7 { SELECT rowid FROM t1 WHERE t1 MATCH 'b' } {1}
+do_execsql_test 1.8 { SELECT rowid FROM t1 WHERE t1 MATCH 'e' } {}
+
+do_execsql_test 1.9 { DELETE FROM t1 WHERE t1 MATCH 'b' } {}
+
+do_execsql_test 1.10 { INSERT INTO t1(t1) VALUES('integrity-check') } {}
+do_execsql_test 1.11 { INSERT INTO t1(t1) VALUES('rebuild') } {}
+do_execsql_test 1.12 { INSERT INTO t1(t1) VALUES('integrity-check') } {}
+
+do_execsql_test 1.13 { SELECT rowid FROM t1 WHERE t1 MATCH 'i' } {2}
+do_execsql_test 1.14 { SELECT rowid FROM t1 WHERE t1 MATCH 'l' } {}
+
+do_execsql_test 2.1 {
+  CREATE VIRTUAL TABLE t2 USING fts5(a UNINDEXED, b UNINDEXED);
+  INSERT INTO t1 VALUES('a b c', 'd e f');
+  INSERT INTO t1 VALUES('g h i', 'j k l');
+  SELECT rowid FROM t2_data;
+} {1 10}
+do_execsql_test 2.2 {
+  INSERT INTO t2(t2) VALUES('rebuild');
+  INSERT INTO t2(t2) VALUES('integrity-check');
+  SELECT rowid FROM t2_data;
+} {1 10}
+
+do_execsql_test 3.1 {
+  CREATE TABLE x4(i INTEGER PRIMARY KEY, a, b, c);
+  CREATE VIRTUAL TABLE t4 USING fts5(a, b UNINDEXED, c, content=x4);
+  INSERT INTO x4 VALUES(10, 'a b c', 'd e f', 'g h i');
+  INSERT INTO x4 VALUES(20, 'j k l', 'm n o', 'p q r');
+  INSERT INTO t4(t4) VALUES('rebuild');
+  INSERT INTO t4(t4) VALUES('integrity-check');
+} {}
+
+do_execsql_test 3.2 {
+  INSERT INTO t4(t4, rowid, a, b, c) VALUES('delete', 20, 'j k l', '', 'p q r');
+  DELETE FROM x4 WHERE rowid=20;
+  INSERT INTO t4(t4) VALUES('integrity-check');
+} {}
+
+
+finish_test
diff --git a/ext/fts5/test/fts5unindexed2.test b/ext/fts5/test/fts5unindexed2.test
new file mode 100644
index 0000000000000000000000000000000000000000..c0abfc39801e3690067b178b3ebee37ed2184445
--- /dev/null
+++ b/ext/fts5/test/fts5unindexed2.test
@@ -0,0 +1,297 @@
+# 2024 Sep 13
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# The tests in this file focus on "unindexed" columns in contentless 
+# tables.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5unindexed2
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+
+do_execsql_test 1.1 {
+  CREATE VIRTUAL TABLE t1 USING fts5(
+      a, b UNINDEXED, content=, contentless_unindexed=1
+  );
+} {}
+
+do_execsql_test 1.2 {
+  INSERT INTO t1 VALUES('abc def', 'ghi jkl');
+}
+
+do_execsql_test 1.3 {
+  SELECT rowid, a, b FROM t1
+} {1 {} {ghi jkl}}
+
+do_execsql_test 1.4 {
+  INSERT INTO t1(rowid, a, b) VALUES(11, 'hello world', 'one two three');
+}
+
+do_execsql_test 1.5 {
+  INSERT INTO t1(t1, rowid, a, b) VALUES('delete', 1, 'abc def', 'ghi jkl');
+}
+
+do_execsql_test 1.6 {
+  SELECT rowid, a, b FROM t1
+} {
+  11 {} {one two three}
+}
+
+do_execsql_test 1.7 {
+  PRAGMA integrity_check
+} {ok}
+
+do_execsql_test 1.8 {
+  INSERT INTO t1(rowid, a, b) VALUES(12, 'abc def', 'ghi jkl');
+}
+
+do_execsql_test 1.9 {
+  SELECT rowid, a, b FROM t1('def')
+} {12 {} {ghi jkl}}
+
+do_execsql_test 1.10 {
+  SELECT rowid, a, b FROM t1('def OR hello') ORDER BY rank
+} {11 {} {one two three} 12 {} {ghi jkl}}
+
+do_execsql_test 1.11 {
+  SELECT rowid, a, b FROM t1 WHERE rowid=11
+} {11 {} {one two three}}
+
+do_execsql_test 1.12 {
+  SELECT rowid, a, b FROM t1
+} {11 {} {one two three} 12 {} {ghi jkl}}
+
+
+fts5_aux_test_functions db
+do_execsql_test 1.12.2 {
+  SELECT rowid, fts5_test_columntext(t1) FROM t1('def OR hello')
+} {11 {{} {one two three}} 12 {{} {ghi jkl}}}
+
+do_execsql_test 1.13 {
+  INSERT INTO t1(t1) VALUES('delete-all');
+}
+
+do_execsql_test 1.14 {
+  SELECT rowid, a, b FROM t1
+} 
+
+do_execsql_test 1.15 {
+  PRAGMA integrity_check
+} {ok}
+
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE t4 USING fts5(
+      x, y UNINDEXED, z, columnsize=0, content='', contentless_unindexed=1
+  );
+}
+
+do_execsql_test 2.1 {
+  INSERT INTO t4(rowid, x, y, z) VALUES(1, 'a a', 'b b b', 'c');
+}
+
+#-------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE x1 USING fts5(
+      a UNINDEXED, b, c UNINDEXED, d, content=, contentless_delete=1,
+      contentless_unindexed=1
+  );
+}
+
+do_execsql_test 3.1 {
+  INSERT INTO x1(rowid, a, b, c, d) VALUES(131, 'aaa', 'bbb', 'ccc', 'ddd');
+}
+
+do_execsql_test 3.2 {
+  SELECT * FROM x1
+} {aaa {} ccc {}}
+
+do_execsql_test 3.3 {
+  INSERT INTO x1(rowid, a, b, c, d) VALUES(1000, 'AAA', 'BBB', 'CCC', 'DDD');
+}
+
+do_execsql_test 3.4 {
+  SELECT rowid, * FROM x1
+} {
+  131 aaa {} ccc {}
+  1000 AAA {} CCC {}
+}
+
+do_execsql_test 3.5 {
+  DELETE FROM x1 WHERE rowid=131;
+  SELECT rowid, * FROM x1
+} {
+  1000 AAA {} CCC {}
+}
+
+do_execsql_test 3.6 {
+  INSERT INTO x1(rowid, a, b, c, d) VALUES(112, 'aaa', 'bbb', 'ccc', 'ddd');
+  SELECT rowid, * FROM x1
+} {
+  112 aaa {} ccc {}
+  1000 AAA {} CCC {}
+}
+
+do_execsql_test 3.7 {
+  UPDATE x1 SET b='hello', d='world', rowid=1120 WHERE rowid=112
+}
+
+do_execsql_test 3.8 {
+  SELECT rowid, * FROM x1
+} {
+  1000 AAA {} CCC {}
+  1120 aaa {} ccc {}
+}
+
+do_execsql_test 3.9 {
+  SELECT rowid, * FROM x1('hello');
+} {
+  1120 aaa {} ccc {}
+}
+
+do_execsql_test 3.9 {
+  SELECT rowid, * FROM x1('bbb');
+} {
+  1000 AAA {} CCC {}
+}
+
+fts5_aux_test_functions db
+do_execsql_test 3.10 {
+  SELECT rowid, fts5_test_columntext(x1) FROM x1('b*')
+} {1000 {AAA {} CCC {}}}
+
+#-------------------------------------------------------------------------
+# Check that if contentless_unindexed=1 is not specified, the values
+# of UNINDEXED columns are not stored in the database.
+#
+# Also check that contentless_unindexed=1 is not allowed unless the table
+# is actually contentless.
+#
+reset_db
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE ft USING fts5(a, b, c UNINDEXED, content='');
+  INSERT INTO ft VALUES('one', 'two', 'three');
+  SELECT rowid, * FROM ft;
+} {1 {} {} {}}
+
+do_execsql_test 4.1 {
+  SELECT name FROM sqlite_schema ORDER BY 1
+} {
+  ft ft_config ft_data ft_docsize ft_idx
+}
+
+do_catchsql_test 4.2 {
+  CREATE VIRTUAL TABLE ft2 USING fts5(
+      a, b, c UNINDEXED, contentless_unindexed=1
+  );
+} {1 {contentless_unindexed=1 requires a contentless table}}
+
+do_catchsql_test 4.3 {
+  DELETE FROM ft WHERE rowid=1
+} {1 {cannot DELETE from contentless fts5 table: ft}}
+
+#-------------------------------------------------------------------------
+# Check that the usual restrictions on contentless tables apply to 
+# contentless_unindexed=1 tables.
+#
+reset_db
+do_execsql_test 5.0 {
+  CREATE VIRTUAL TABLE ft USING fts5(
+      a, b UNINDEXED, c, content='', contentless_unindexed=1
+  );
+  INSERT INTO ft VALUES('one', 'two', 'three');
+  INSERT INTO ft VALUES('four', 'five', 'six');
+  INSERT INTO ft VALUES('seven', 'eight', 'nine');
+  SELECT rowid, * FROM ft;
+} {
+  1 {} two {}
+  2 {} five {}
+  3 {} eight {}
+}
+
+do_execsql_test 5.1 {
+  PRAGMA integrity_check
+} {ok}
+
+do_catchsql_test 5.2 {
+  DELETE FROM ft WHERE rowid=2
+} {1 {cannot DELETE from contentless fts5 table: ft}}
+
+do_execsql_test 5.3 {
+  SELECT rowid, * FROM ft('six')
+} {
+  2 {} five {}
+}
+
+do_catchsql_test 5.4 {
+  UPDATE ft SET a='x', b='y', c='z' WHERE rowid=3
+} {1 {cannot UPDATE contentless fts5 table: ft}}
+
+fts5_aux_test_functions db
+
+do_execsql_test 5.5 {
+  SELECT fts5_test_columntext(ft) FROM ft WHERE rowid=3
+} {
+  {{} eight {}}
+}
+do_execsql_test 5.6 {
+  SELECT fts5_test_columntext(ft) FROM ft('three');
+} {
+  {{} two {}}
+}
+
+#-------------------------------------------------------------------------
+# Check that it is possible to UPDATE a contentless_unindexed=1 table
+# if the only columns being modified are UNINDEXED.
+#
+# If the contentless_unindexed=1 table is also contentless_delete=1, then
+# it is also possible to update indexed columns - but only if *all* indexed
+# columns are updated.
+#
+reset_db
+do_execsql_test 6.0 {
+  CREATE VIRTUAL TABLE ft1 USING fts5(a, b UNINDEXED, c UNINDEXED, d,
+      contentless_unindexed=1, content=''
+  );
+
+  INSERT INTO ft1(rowid, a, b, c, d) VALUES
+      (100, 'x y', 'b1', 'c1', 'a b'),
+      (200, 'c d', 'b2', 'c2', 'a b'),
+      (300, 'e f', 'b3', 'c3', 'a b');
+}
+
+do_execsql_test 6.1 {
+  UPDATE ft1 SET b='b1.1', c='c1.1' WHERE rowid=100;
+}
+do_execsql_test 6.2 {
+  UPDATE ft1 SET b='b2.1' WHERE rowid=200;
+}
+do_execsql_test 6.3 {
+  UPDATE ft1 SET c='c3.1' WHERE rowid=300;
+}
+
+do_execsql_test 6.4 {
+  SELECT rowid, a, b, c, d FROM ft1
+} {
+  100 {} b1.1 c1.1 {}
+  200 {} b2.1 c2 {}
+  300 {} b3 c3.1 {}
+}
+
+finish_test
+
diff --git a/ext/fts5/test/fts5update.test b/ext/fts5/test/fts5update.test
new file mode 100644
index 0000000000000000000000000000000000000000..75598b47e5b339c60a6957274f97c7fd207e1778
--- /dev/null
+++ b/ext/fts5/test/fts5update.test
@@ -0,0 +1,157 @@
+# 2016 Jan 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS5 module.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5update
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+set docs {
+  "eight zero iv eight 7"            "ix one 8 one three ii one"        
+  "1 9 9 three viii"                 "5 zero ii 6 nine ix 3"            
+  "3 zero 5 2 seven nine"            "two eight viii eight 1"           
+  "4 six two 5 9 vii"                "viii ii four 8 i i iv"            
+  "vii 0 iv seven 7 viii"            "five 1 nine vi seven"             
+  "1 zero zero iii 1"                "one one six 6 nine seven"         
+  "one v 4 zero 4 iii ii"            "2 3 eight six ix"                 
+  "six iv 7 three 5"                 "ix zero 0 8 ii 7 3"               
+  "four six nine 2 vii 3"            "five viii 5 8 0 7"                
+}
+
+foreach_detail_mode $::testprefix {
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, b, detail=%DETAIL%);
+} {}
+
+do_test 1.1 {
+  foreach {a b} $docs {
+    execsql {INSERT INTO t1 VALUES($a, $b)}
+  }
+} {}
+
+proc update {iRowid iA iB} {
+  set a [lindex $::docs $iA]
+  set b [lindex $::docs $iB]
+  execsql { UPDATE t1 SET a=$a, b=$b WHERE rowid=$iRowid }
+}
+
+set nDoc [llength $::docs]
+foreach n {1 5 10 50 100} {
+  do_test 1.2.$n {
+    execsql BEGIN
+    for {set i 1} {$i <= 1000} {incr i} {
+      set iRowid [expr {int(rand() * ($nDoc/2)) + 1}]
+      set iA [expr {int(rand() * $nDoc)}]
+      set iB [expr {int(rand() * $nDoc)}]
+      update $iRowid $iA $iB
+
+      if {($i % $n)==0} {
+        execsql { COMMIT; BEGIN }
+      }
+
+      if {($i % $n)==100} {
+        execsql { INSERT INTO t1(t1) VALUES('integrity-check') }
+      }
+    }
+    execsql COMMIT
+    execsql { INSERT INTO t1(t1) VALUES('integrity-check') }
+  } {}
+}
+
+do_execsql_test 1.3 {
+  UPDATE t1 SET a=a AND b=b;
+  INSERT INTO t1(t1) VALUES('integrity-check');
+}
+
+do_test 1.4 {
+  execsql { INSERT INTO t1(t1, rank) VALUES('pgsz', 32) }
+  for {set i 0} {$i < 50} {incr i} {
+    execsql { UPDATE t1 SET a=a AND b=b }
+    execsql { INSERT INTO t1(t1) VALUES('integrity-check') }
+  }
+} {}
+
+#-------------------------------------------------------------------------
+# Lots of deletes/inserts of the same document with the same rowid.
+#
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE x2 USING fts5(x, detail=%DETAIL%);
+  INSERT INTO x2(x2, rank) VALUES('crisismerge', 2);
+  INSERT INTO x2 VALUES('a b c');
+  INSERT INTO x2 VALUES('a b c');
+}
+do_test 2.1 {
+  for {set i 0} {$i < 1000} {incr i} {
+    execsql { DELETE FROM x2 WHERE rowid = 2 }
+    execsql { INSERT INTO x2(rowid, x) VALUES(2, 'a b c') }
+  }
+} {}
+do_execsql_test 2.1.integrity {
+  INSERT INTO x2(x2) VALUES('integrity-check');
+}
+
+do_test 2.2 {
+  for {set i 0} {$i < 1000} {incr i} {
+    execsql { UPDATE x2 SET x=x WHERE rowid=2 }
+  }
+} {}
+do_execsql_test 2.2.integrity {
+  INSERT INTO x2(x2) VALUES('integrity-check');
+}
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE x3 USING fts5(x, detail=%DETAIL%);
+  INSERT INTO x3 VALUES('one');
+  INSERT INTO x3 VALUES('two');
+  INSERT INTO x3 VALUES('one');
+  INSERT INTO x3 VALUES('two');
+  INSERT INTO x3 VALUES('one');
+}
+
+do_test 3.1 {
+  db eval { SELECT * FROM x3('one') } {
+    db eval {
+      INSERT INTO x3(x3) VALUES('optimize');
+    }
+  }
+} {}
+
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE x4 USING fts5(a, detail=%DETAIL%);
+  INSERT INTO x4 VALUES('one two three');
+  INSERT INTO x4(rowid, a) VALUES('2', 'one two three');
+  INSERT INTO x4(rowid, a) VALUES('3.0', 'one two three');
+}
+do_catchsql_test 4.1 {
+  INSERT INTO x4(rowid, a) VALUES('four', 'one two three');
+} {1 {datatype mismatch}}
+
+do_catchsql_test 4.2 {
+  UPDATE x4 SET rowid = 'four' WHERE rowid=1;
+} {1 {datatype mismatch}}
+
+
+}
+
+reset_db
+do_catchsql_test 4.0 { CREATE VIRTUAL TABLE t1 USING fts5(a,b,c); } {0 {}}
+do_catchsql_test 4.1 { DELETE FROM t1 WHERE t1 MATCH 'f*'; } {0 {}}
+finish_test
diff --git a/ext/fts5/test/fts5update2.test b/ext/fts5/test/fts5update2.test
new file mode 100644
index 0000000000000000000000000000000000000000..d04af4800d6a064b091d87b7f184be4d2237e8c7
--- /dev/null
+++ b/ext/fts5/test/fts5update2.test
@@ -0,0 +1,177 @@
+# 2024 Sep 27
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS5 module.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5update2
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+
+#-------------------------------------------------------------------------
+# Test that the various types of UPDATE statement are handled correctly
+# by different table types.
+#
+foreach_detail_mode $testprefix {
+foreach {tn cu} {
+  1 0
+  2 1
+} {
+  reset_db
+  do_execsql_test 1.$tn.1 "
+    CREATE VIRTUAL TABLE ft1 USING fts5(a, b UNINDEXED, c UNINDEXED, d,
+        content='',
+        contentless_unindexed=$cu,
+        detail=%DETAIL%
+    );
+    CREATE VIRTUAL TABLE ft2 USING fts5(a, b UNINDEXED, c UNINDEXED, d,
+        content='',
+        contentless_unindexed=$cu, contentless_delete=1,
+        detail=%DETAIL%
+    );
+  "
+
+  do_execsql_test 1.$tn.2 {
+    INSERT INTO ft1(rowid, a, b, c, d) VALUES(1, 'a1', 'b1', 'c1', 'd1');
+    INSERT INTO ft1(rowid, a, b, c, d) VALUES(2, 'a2', 'b2', 'c2', 'd2');
+    INSERT INTO ft1(rowid, a, b, c, d) VALUES(3, 'a3', 'b3', 'c3', 'd3');
+
+    INSERT INTO ft2(rowid, a, b, c, d) VALUES(1, 'a1', 'b1', 'c1', 'd1');
+    INSERT INTO ft2(rowid, a, b, c, d) VALUES(2, 'a2', 'b2', 'c2', 'd2');
+    INSERT INTO ft2(rowid, a, b, c, d) VALUES(3, 'a3', 'b3', 'c3', 'd3');
+  }
+
+  # It should be possible to update a subset of the UNINDEXED columns of
+  # a contentless table. Regardless of whether or not contentless_unindexed=1
+  # or contentless_delete=1 is set.
+  do_execsql_test 1.$tn.3 {
+    UPDATE ft1 SET b=b||'.1';
+    UPDATE ft2 SET b=b||'.1';
+  }
+  do_execsql_test 1.$tn.4 {
+    UPDATE ft1 SET b=b||'.2', c=c||'.2';
+    UPDATE ft2 SET b=b||'.2', c=c||'.2';
+  }
+
+  set res(0) {
+    1 {} {} {} {}
+    2 {} {} {} {}
+    3 {} {} {} {}
+  }
+  set res(1) {
+    1 {} b1.1.2 c1.2 {}
+    2 {} b2.1.2 c2.2 {}
+    3 {} b3.1.2 c3.2 {}
+  }
+
+  do_execsql_test 1.$tn.5 {
+    SELECT rowid, * FROM ft2
+  } $res($cu)
+
+  do_execsql_test 1.6.1 { SELECT rowid FROM ft1('a2') } {2}
+  do_execsql_test 1.6.2 { SELECT rowid FROM ft2('a2') } {2}
+
+  # It should be possible to update all indexed columns (but no other subset)
+  # if the contentless_delete=1 option is set, as it is for "ft2".
+  do_execsql_test 1.$tn.7 {
+    UPDATE ft2 SET a='a22', d='d22' WHERE rowid=2;
+  }
+  do_execsql_test 1.$tn.8 { SELECT rowid FROM ft2('a22 AND d22') } {2}
+
+  do_execsql_test 1.$tn.9 {
+    UPDATE ft2 SET a='a33', d='d33', b='b3' WHERE rowid=3;
+  }
+
+  set res(1) {
+    1 {} b1.1.2 c1.2 {}
+    2 {} b2.1.2 c2.2 {}
+    3 {} b3 c3.2 {}
+  }
+  do_execsql_test 1.$tn.10 {
+    SELECT rowid, * FROM ft2
+  } $res($cu)
+
+  do_catchsql_test 1.$tn.11 {
+    UPDATE ft2 SET a='a11' WHERE rowid=1
+  } {1 {cannot UPDATE a subset of columns on fts5 contentless-delete table: ft2}}
+  do_catchsql_test 1.$tn.12 {
+    UPDATE ft2 SET d='d11' WHERE rowid=1
+  } {1 {cannot UPDATE a subset of columns on fts5 contentless-delete table: ft2}}
+
+  # It is not possible to update the values of indexed columns if
+  # contentless_delete=1 is not set.
+  do_catchsql_test 1.$tn.13 {
+    UPDATE ft1 SET a='a11' WHERE rowid=1
+  } {1 {cannot UPDATE contentless fts5 table: ft1}}
+  do_catchsql_test 1.$tn.14 {
+    UPDATE ft1 SET d='d11' WHERE rowid=1
+  } {1 {cannot UPDATE contentless fts5 table: ft1}}
+
+  # It should be possible to update the rowid if contentless_delete=1 is
+  # set and all indexed columns are updated.
+  do_execsql_test 1.$tn.15 {
+    UPDATE ft2 SET a='aXone', d='dXone', rowid=11 WHERE rowid=1
+  } 
+
+  set res(0) {
+    2 {} {} {} {}
+    3 {} {} {} {}
+    11 {} {} {} {}
+  }
+  set res(1) {
+    2 {} b2.1.2 c2.2 {}
+    3 {} b3 c3.2 {}
+    11 {} b1.1.2 c1.2 {}
+  }
+  do_execsql_test 1.$tn.16 {
+    SELECT rowid, * FROM ft2
+  } $res($cu)
+
+  # Should not be possible to update the rowid of a contentless_delete=1
+  # table if no indexed columns are updated.
+  do_catchsql_test 1.$tn.17 {
+    UPDATE ft2 SET rowid=12 WHERE rowid=11
+  } {1 {cannot UPDATE a subset of columns on fts5 contentless-delete table: ft2}}
+  do_catchsql_test 1.$tn.18 {
+    UPDATE ft1 SET rowid=12 WHERE rowid=1
+  } {1 {cannot UPDATE contentless fts5 table: ft1}}
+
+  do_execsql_test 1.$tn.19 {
+    UPDATE ft2 SET a='aXtwo', d='dXtwo', c='newval', rowid=12 WHERE rowid=2
+  }  {}
+
+  set res(0) {
+    3 {} {} {} {}
+    11 {} {} {} {}
+    12 {} {} {} {}
+  }
+  set res(1) {
+    3 {} b3 c3.2 {}
+    11 {} b1.1.2 c1.2 {}
+    12 {} b2.1.2 newval {}
+  }
+  do_execsql_test 1.$tn.20 {
+    SELECT rowid, * FROM ft2
+  } $res($cu)
+
+  do_execsql_test 1.$tn.21 {
+    SELECT rowid, * FROM ft2('aXtwo AND dXtwo')
+  } [lrange $res($cu) 10 end]
+
+}} ;# end of [foreach_detail_mode] loop
+
+finish_test
diff --git a/ext/fts5/test/fts5version.test b/ext/fts5/test/fts5version.test
new file mode 100644
index 0000000000000000000000000000000000000000..a92c0dc9f48b93abf015bd3c076e2575404b5a55
--- /dev/null
+++ b/ext/fts5/test/fts5version.test
@@ -0,0 +1,133 @@
+# 2015 Apr 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# The tests in this file focus on testing that unrecognized file-format
+# versions are detected and reported.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5version
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+
+do_execsql_test 1.1 {
+  CREATE VIRTUAL TABLE t1 USING fts5(one);
+  INSERT INTO t1 VALUES('a b c d');
+} {}
+
+do_execsql_test 1.2 {
+  SELECT * FROM t1_config WHERE k='version'
+} {version 4}
+
+do_execsql_test 1.3 {
+  SELECT rowid FROM t1 WHERE t1 MATCH 'a';
+} {1}
+
+sqlite3_db_config db DEFENSIVE 0
+do_execsql_test 1.4 {
+  UPDATE t1_config set v=6 WHERE k='version';
+}
+
+do_test 1.5 {
+  db close
+  sqlite3 db test.db
+  catchsql { SELECT * FROM t1 WHERE t1 MATCH 'a' }
+} {1 {invalid fts5 file format (found 6, expected 4 or 5) - run 'rebuild'}}
+
+do_test 1.6 {
+  db close
+  sqlite3 db test.db
+  catchsql { INSERT INTO t1 VALUES('x y z') }
+} {1 {invalid fts5 file format (found 6, expected 4 or 5) - run 'rebuild'}}
+
+do_test 1.7 {
+  sqlite3_db_config db DEFENSIVE 0
+  execsql { DELETE FROM t1_config WHERE k='version' }
+  db close
+  sqlite3 db test.db
+  catchsql { SELECT * FROM t1 WHERE t1 MATCH 'a' }
+} {1 {invalid fts5 file format (found 0, expected 4 or 5) - run 'rebuild'}}
+
+do_test 1.8 {
+  sqlite3_db_config db DEFENSIVE 0
+  execsql { INSERT INTO t1_config VALUES('version', 4) }
+  execsql { INSERT INTO t1(t1, rank) VALUES('secure-delete', 1) }
+} {}
+
+do_execsql_test 1.10 {
+  SELECT * FROM t1_config
+} {secure-delete 1 version 4}
+
+do_execsql_test 1.11 {
+  INSERT INTO t1(rowid, one) VALUES(123, 'one two three');
+  DELETE FROM t1 WHERE rowid=123;
+  SELECT * FROM t1_config
+} {secure-delete 1 version 5}
+
+do_execsql_test 1.11 {
+  INSERT INTO t1(t1) VALUES('rebuild');
+  SELECT * FROM t1_config
+} {secure-delete 1 version 4}
+
+do_execsql_test 1.12 {
+  SELECT * FROM t1_config
+} {secure-delete 1 version 4}
+
+#-------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE xyz USING fts5(x);
+  INSERT INTO xyz(rowid, x) VALUES
+      (1, 'one document'),
+      (2, 'two document'),
+      (3, 'three document'),
+      (4, 'four document'),
+      (5, 'five document'),
+      (6, 'six document');
+
+  INSERT INTO xyz(xyz, rank) VALUES('secure-delete', 1);
+  SELECT v FROM xyz_config WHERE k='version';
+} {4}
+
+do_execsql_test 2.1 {
+  BEGIN;
+    INSERT INTO xyz(rowid, x) VALUES(7, 'seven document');
+    SAVEPOINT one;
+      DELETE FROM xyz WHERE rowid = 4;
+}
+
+do_execsql_test 2.2 {
+      SELECT v FROM xyz_config WHERE k='version';
+} {5}
+
+do_execsql_test 2.3 {
+    ROLLBACK TO one;
+      SELECT v FROM xyz_config WHERE k='version';
+} {4}
+
+
+do_execsql_test 2.4 {
+      DELETE FROM xyz WHERE rowid = 3;
+  COMMIT;
+  SELECT v FROM xyz_config WHERE k='version';
+} {5}
+
+
+
+
+finish_test
+
diff --git a/ext/fts5/test/fts5vocab.test b/ext/fts5/test/fts5vocab.test
new file mode 100644
index 0000000000000000000000000000000000000000..b1644527eafbb3e75df6fef48a7759576daf2e65
--- /dev/null
+++ b/ext/fts5/test/fts5vocab.test
@@ -0,0 +1,558 @@
+# 2015 Apr 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# The tests in this file focus on testing the fts5vocab module.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5vocab
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+foreach_detail_mode $testprefix {
+
+proc null_list_entries {iFirst nInterval L} {
+  for {set i $iFirst} {$i < [llength $L]} {incr i $nInterval} {
+    lset L $i {}
+  }
+  return $L
+}
+
+proc star_from_row {L} {
+  if {[detail_is_full]==0} {
+    set L [null_list_entries 2 3 $L]
+  }
+  return $L
+}
+
+proc star_from_col {L} {
+  if {[detail_is_col]} {
+    set L [null_list_entries 3 4 $L]
+  }
+  if {[detail_is_none]} {
+    set L [null_list_entries 1 4 $L]
+    set L [null_list_entries 3 4 $L]
+  }
+  return $L
+}
+
+proc row_to_col {L} {
+  if {[detail_is_none]==0} { error "this is for detail=none mode" }
+  set ret [list]
+  foreach {a b c} $L {
+    lappend ret $a {} $b {}
+  }
+  set ret
+}
+
+if 1 {
+
+do_execsql_test 1.1.1 {
+  CREATE VIRTUAL TABLE t1 USING fts5(one, prefix=1, detail=%DETAIL%);
+  CREATE VIRTUAL TABLE v1 USING fts5vocab(t1, 'row');
+  PRAGMA table_info = v1;
+} {
+  0 term {} 0 {} 0
+  1 doc {} 0 {} 0
+  2 cnt {} 0 {} 0
+}
+
+do_execsql_test 1.1.2 {
+  CREATE VIRTUAL TABLE v2 USING fts5vocab(t1, 'col');
+  PRAGMA table_info = v2;
+} {
+  0 term {} 0 {} 0
+  1 col {} 0 {} 0
+  2 doc {} 0 {} 0
+  3 cnt {} 0 {} 0
+}
+
+do_execsql_test 1.2.1 { SELECT * FROM v1 } {}
+do_execsql_test 1.2.2 { SELECT * FROM v2 } {}
+
+do_execsql_test 1.3 {
+  INSERT INTO t1 VALUES('x y z');
+  INSERT INTO t1 VALUES('x x x');
+}
+
+do_execsql_test 1.4.1 {
+  SELECT * FROM v1;
+} [star_from_row {x 2 4  y 1 1  z 1 1}]
+
+do_execsql_test 1.4.2 {
+  SELECT * FROM v2;
+} [star_from_col {x one 2 4  y one 1 1  z one 1 1}]
+
+do_execsql_test 1.5.1 {
+  BEGIN;
+    INSERT INTO t1 VALUES('a b c');
+    SELECT * FROM v1 WHERE term<'d';
+} [star_from_row {a 1 1   b 1 1   c 1 1}]
+
+do_execsql_test 1.5.2 {
+    SELECT * FROM v2 WHERE term<'d';
+  COMMIT;
+} [star_from_col {a one 1 1  b one 1 1  c one 1 1}]
+
+do_execsql_test 1.6 {
+  DELETE FROM t1 WHERE one = 'a b c';
+  SELECT * FROM v1;
+} [star_from_row {x 2 4  y 1 1  z 1 1}]
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE tt USING fts5(a, b, detail=%DETAIL%);
+  INSERT INTO tt VALUES('d g b f d f', 'f c e c d a');
+  INSERT INTO tt VALUES('f a e a a b', 'e d c f d d');
+  INSERT INTO tt VALUES('b c a a a b', 'f f c c b c');
+  INSERT INTO tt VALUES('f d c a c e', 'd g d e g d');
+  INSERT INTO tt VALUES('g d e f a g x', 'f f d a a b');
+  INSERT INTO tt VALUES('g c f b c g', 'a g f d c b');
+  INSERT INTO tt VALUES('c e c f g b', 'f e d b g a');
+  INSERT INTO tt VALUES('g d e f d e', 'a c d b a g');
+  INSERT INTO tt VALUES('e f a c c b', 'b f e a f d y');
+  INSERT INTO tt VALUES('c c a a c f', 'd g a e b g');
+}
+
+set res_row [star_from_row {
+  a 10 20   b 9 14   c 9 20   d 9 19   
+  e 8 13   f 10 20   g 7 14   x 1 1   
+  y 1 1
+}]
+set res_col [star_from_col {
+  a a 6 11    a b 7 9
+  b a 6 7     b b 7 7 
+  c a 6 12    c b 5 8 
+  d a 4 6     d b 9 13 
+  e a 6 7     e b 6 6 
+  f a 9 10    f b 7 10 
+  g a 5 7     g b 5 7
+  x a 1 1     y b 1 1
+}]
+if {[detail_is_none]} {
+  set res_col [row_to_col $res_row]
+}
+
+foreach {tn tbl resname} {
+  1 "fts5vocab(tt, 'col')" res_col
+  2 "fts5vocab(tt, 'row')" res_row
+  3 "fts5vocab(tt, \"row\")" res_row
+  4 "fts5vocab(tt, [row])" res_row
+  5 "fts5vocab(tt, `row`)" res_row
+
+  6 "fts5vocab('tt', 'row')" res_row
+  7 "fts5vocab(\"tt\", \"row\")" res_row
+  8 "fts5vocab([tt], [row])" res_row
+  9 "fts5vocab(`tt`, `row`)" res_row
+} {
+  do_execsql_test 2.$tn "
+    DROP TABLE IF EXISTS tv;
+    CREATE VIRTUAL TABLE tv USING $tbl;
+    SELECT * FROM tv;
+  " [set $resname]
+}
+
+#-------------------------------------------------------------------------
+# Test errors in the CREATE VIRTUAL TABLE statement.
+#
+foreach {tn sql} {
+  1 { CREATE VIRTUAL TABLE aa USING fts5vocab() }
+  2 { CREATE VIRTUAL TABLE aa USING fts5vocab(x) }
+  3 { CREATE VIRTUAL TABLE aa USING fts5vocab(x,y,z) }
+  4 { CREATE VIRTUAL TABLE temp.aa USING fts5vocab(x,y,z,y) }
+} {
+  do_catchsql_test 3.$tn $sql {1 {wrong number of vtable arguments}}
+}
+
+do_catchsql_test 4.0 {
+  CREATE VIRTUAL TABLE cc USING fts5vocab(tbl, unknown);
+} {1 {fts5vocab: unknown table type: 'unknown'}}
+
+do_catchsql_test 4.1 {
+  ATTACH 'test.db' AS aux;
+  CREATE VIRTUAL TABLE aux.cc USING fts5vocab(main, tbl, row);
+} {1 {wrong number of vtable arguments}}
+
+#-------------------------------------------------------------------------
+# Test fts5vocab tables created in the temp schema. 
+#
+reset_db
+forcedelete test.db2
+do_execsql_test 5.0 {
+  ATTACH 'test.db2' AS aux;
+  CREATE VIRTUAL TABLE t1 USING fts5(x, detail=%DETAIL%);
+  CREATE VIRTUAL TABLE temp.t1 USING fts5(x, detail=%DETAIL%);
+  CREATE VIRTUAL TABLE aux.t1 USING fts5(x, detail=%DETAIL%);
+
+  INSERT INTO main.t1 VALUES('a b c');
+  INSERT INTO main.t1 VALUES('d e f');
+  INSERT INTO main.t1 VALUES('a e c');
+
+  INSERT INTO temp.t1 VALUES('1 2 3');
+  INSERT INTO temp.t1 VALUES('4 5 6');
+  INSERT INTO temp.t1 VALUES('1 5 3');
+
+  INSERT INTO aux.t1 VALUES('x y z');
+  INSERT INTO aux.t1 VALUES('m n o');
+  INSERT INTO aux.t1 VALUES('x n z');
+}
+
+do_execsql_test 5.1 {
+  CREATE VIRTUAL TABLE temp.vm  USING fts5vocab(main, t1, row);
+  CREATE VIRTUAL TABLE temp.vt1 USING fts5vocab(t1, row);
+  CREATE VIRTUAL TABLE temp.vt2 USING fts5vocab(temp, t1, row);
+  CREATE VIRTUAL TABLE temp.va  USING fts5vocab(aux, t1, row);
+}
+
+do_execsql_test 5.2 { SELECT * FROM vm } [star_from_row {
+  a 2 2 b 1 1 c 2 2 d 1 1 e 2 2 f 1 1
+}]
+do_execsql_test 5.3 { SELECT * FROM vt1 } [star_from_row {
+  1 2 2 2 1 1 3 2 2 4 1 1 5 2 2 6 1 1
+}]
+do_execsql_test 5.4 { SELECT * FROM vt2 } [star_from_row {
+  1 2 2 2 1 1 3 2 2 4 1 1 5 2 2 6 1 1
+}]
+do_execsql_test 5.5 { SELECT * FROM va } [star_from_row {
+  m 1 1 n 2 2 o 1 1 x 2 2 y 1 1 z 2 2
+}]
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test 6.0 {
+  CREATE TABLE iii(iii);
+  CREATE TABLE jjj(x);
+}
+
+do_catchsql_test 6.1 {
+  CREATE VIRTUAL TABLE vocab1 USING fts5vocab(iii, row);
+  SELECT * FROM vocab1;
+} {1 {no such fts5 table: main.iii}}
+
+do_catchsql_test 6.2 {
+  CREATE VIRTUAL TABLE vocab2 USING fts5vocab(jjj, row);
+  SELECT * FROM vocab2;
+} {1 {no such fts5 table: main.jjj}}
+
+do_catchsql_test 6.2 {
+  CREATE VIRTUAL TABLE vocab3 USING fts5vocab(lll, row);
+  SELECT * FROM vocab3;
+} {1 {no such fts5 table: main.lll}}
+
+#-------------------------------------------------------------------------
+# Test single term queries on fts5vocab tables (i.e. those with term=?
+# constraints in the WHERE clause).
+#
+do_execsql_test 7.0 {
+  CREATE VIRTUAL TABLE tx USING fts5(one, two, detail=%DETAIL%);
+  INSERT INTO tx VALUES('g a ggg g a b eee',      'cc d aa ff g ee');
+  INSERT INTO tx VALUES('dd fff i a i jjj',       'f fff hh jj e f');
+  INSERT INTO tx VALUES('ggg a f f fff dd aa',    'd ggg f f j gg ddd');
+  INSERT INTO tx VALUES('e bb h jjj ii gg',       'e aa e f c fff');
+  INSERT INTO tx VALUES('j ff aa a h',            'h a j bbb bb');
+  INSERT INTO tx VALUES('cc i ff c d f',          'dd ii fff f c cc d');
+  INSERT INTO tx VALUES('jjj g i bb cc eee',      'hhh iii aaa b bbb aaa');
+  INSERT INTO tx VALUES('hhh hhh hhh bb fff f',   'fff gg aa ii h a');
+  INSERT INTO tx VALUES('b c cc aaa iii ggg f',   'iii ff ee a ff c cc');
+  INSERT INTO tx VALUES('hhh b hhh aaa j i i',    'dd ee ee aa bbb iii');
+  INSERT INTO tx VALUES('hh dd h b g ff i',       'ccc bb cc ccc f a d');
+  INSERT INTO tx VALUES('g d b ggg jj',           'fff jj ff jj g gg ee');
+  INSERT INTO tx VALUES('g ee ggg ggg cc bb eee', 'aa j jjj bbb dd eee ff');
+  INSERT INTO tx VALUES('c jjj hh ddd dd h',      'e aaa h jjj gg');
+
+  CREATE VIRTUAL TABLE txr USING fts5vocab(tx, row);
+  CREATE VIRTUAL TABLE txc USING fts5vocab(tx, col);
+}
+
+proc cont {L elem} {
+  set n 0
+  foreach e $L { if {$elem==$e} {incr n} }
+  set n
+}
+db func cont cont
+
+foreach {term} {
+  a aa aaa
+  b bb bbb
+  c cc ccc
+  d dd ddd
+  e ee eee
+  f ff fff
+  g gg ggg
+  h hh hhh
+  i ii iii
+  j jj jjj
+} {
+  set resr [db eval {
+    SELECT $term, 
+      sum(cont(one || ' ' || two, $term) > 0),
+      sum(cont(one || ' ' || two, $term))
+    FROM tx
+  }]
+  if {[lindex $resr 1]==0} {set resr [list]}
+
+  set r1 [db eval {
+    SELECT $term, 'one', sum(cont(one, $term)>0), sum(cont(one, $term)) FROM tx
+  }]
+  if {[lindex $r1 2]==0} {set r1 [list]}
+
+  set r2 [db eval {
+    SELECT $term, 'two', sum(cont(two, $term)>0), sum(cont(two, $term)) FROM tx
+  }]
+  if {[lindex $r2 2]==0} {set r2 [list]}
+
+  set resc [concat $r1 $r2]
+
+  set resc [star_from_col $resc]
+  set resr [star_from_row $resr]
+  if {[detail_is_none]} { set resc [row_to_col $resr] }
+  do_execsql_test 7.$term.1 {SELECT * FROM txc WHERE term=$term} $resc
+  do_execsql_test 7.$term.2 {SELECT * FROM txr WHERE term=$term} $resr
+}
+
+do_execsql_test 7.1 {
+  CREATE TABLE txr_c AS SELECT * FROM txr;
+  CREATE TABLE txc_c AS SELECT * FROM txc;
+}
+
+# Test range queries on the fts5vocab tables created above.
+#
+foreach {tn a b} {
+  1   a   jjj
+  2   bb  j
+  3   ccc ddd
+  4   dd  xyz
+  5   xzy dd
+  6   h   hh
+} {
+  do_execsql_test 7.2.$tn.1 {
+    SELECT * FROM txr WHERE term>=$a
+  } [db eval {SELECT * FROM txr_c WHERE term>=$a}]
+  do_execsql_test 7.2.$tn.2 {
+    SELECT * FROM txr WHERE term<=$b
+  } [db eval {SELECT * FROM txr_c WHERE term <=$b}]
+  do_execsql_test 7.2.$tn.3 {
+    SELECT * FROM txr WHERE term>=$a AND term<=$b
+  } [db eval {SELECT * FROM txr_c WHERE term>=$a AND term <=$b}]
+
+  do_execsql_test 7.2.$tn.4 {
+    SELECT * FROM txc WHERE term>=$a
+  } [db eval {SELECT * FROM txc_c WHERE term>=$a}]
+  do_execsql_test 7.2.$tn.5 {
+    SELECT * FROM txc WHERE term<=$b
+  } [db eval {SELECT * FROM txc_c WHERE term <=$b}]
+  do_execsql_test 7.2.$tn.6 {
+    SELECT * FROM txc WHERE term>=$a AND term<=$b
+  } [db eval {SELECT * FROM txc_c WHERE term>=$a AND term <=$b}]
+
+  do_execsql_test 7.2.$tn.7 {
+    SELECT * FROM txr WHERE term>$a
+  } [db eval {SELECT * FROM txr_c WHERE term>$a}]
+  do_execsql_test 7.2.$tn.8 {
+    SELECT * FROM txr WHERE term<$b
+  } [db eval {SELECT * FROM txr_c WHERE term<$b}]
+  do_execsql_test 7.2.$tn.9 {
+    SELECT * FROM txr WHERE term>$a AND term<$b
+  } [db eval {SELECT * FROM txr_c WHERE term>$a AND term <$b}]
+
+  do_execsql_test 7.2.$tn.10 {
+    SELECT * FROM txc WHERE term>$a
+  } [db eval {SELECT * FROM txc_c WHERE term>$a}]
+  do_execsql_test 7.2.$tn.11 {
+    SELECT * FROM txc WHERE term<$b
+  } [db eval {SELECT * FROM txc_c WHERE term<$b}]
+  do_execsql_test 7.2.$tn.12 {
+    SELECT * FROM txc WHERE term>$a AND term<$b
+  } [db eval {SELECT * FROM txc_c WHERE term>$a AND term <$b}]
+}
+
+do_execsql_test 7.3.1 {
+  SELECT count(*) FROM txr, txr_c WHERE txr.term = txr_c.term;
+} {30}
+
+if {![detail_is_none]} {
+  do_execsql_test 7.3.2 {
+    SELECT count(*) FROM txc, txc_c
+      WHERE txc.term = txc_c.term AND txc.col=txc_c.col;
+  } {57}
+}
+
+}
+
+#-------------------------------------------------------------------------
+# Test the fts5vocab tables response to a specific types of corruption:
+# where the fts5 index contains hits for columns that do not exist.
+#
+do_execsql_test 8.0 {
+  CREATE VIRTUAL TABLE x1 USING fts5(a, b, c, detail=%DETAIL%);
+  INSERT INTO x1 VALUES('a b c', 'd e f', 'g h i');
+  INSERT INTO x1 VALUES('g h i', 'a b c', 'd e f');
+  INSERT INTO x1 VALUES('d e f', 'g h i', 'a b c');
+  CREATE VIRTUAL TABLE x1_r USING fts5vocab(x1, row);
+  CREATE VIRTUAL TABLE x1_c USING fts5vocab(x1, col);
+}
+
+set resr [star_from_row {a 3 3 b 3 3 c 3 3 d 3 3 e 3 3 f 3 3 g 3 3 h 3 3 i 3 3}]
+set resc [star_from_col {
+  a a 1 1 a b 1 1 a c 1 1 b a 1 1 
+  b b 1 1 b c 1 1 c a 1 1 c b 1 1 
+  c c 1 1 d a 1 1 d b 1 1 d c 1 1
+  e a 1 1 e b 1 1 e c 1 1 f a 1 1 
+  f b 1 1 f c 1 1 g a 1 1 g b 1 1 
+  g c 1 1 h a 1 1 h b 1 1 h c 1 1 
+  i a 1 1 i b 1 1 i c 1 1
+}]
+if {[detail_is_none]} { set resc [row_to_col $resr] }
+
+do_execsql_test 8.1.1 { SELECT * FROM x1_r; } $resr
+do_execsql_test 8.1.2 { SELECT * FROM x1_c } $resc
+
+sqlite3_db_config db DEFENSIVE 0
+do_execsql_test 8.2 {
+  PRAGMA writable_schema = 1;
+  UPDATE sqlite_master 
+  SET sql = 'CREATE VIRTUAL TABLE x1 USING fts5(a, detail=%DETAIL%)'
+  WHERE name = 'x1';
+}
+db close
+sqlite3 db test.db
+sqlite3_fts5_may_be_corrupt 1
+
+do_execsql_test 8.2.1 { SELECT * FROM x1_r } $resr
+
+if {[detail_is_none]} {
+  do_execsql_test 8.2.2 { SELECT * FROM x1_c } $resc
+} else {
+  do_catchsql_test 8.2.2 { 
+    SELECT * FROM x1_c 
+  } {1 {database disk image is malformed}}
+}
+
+sqlite3_fts5_may_be_corrupt 0
+}
+
+#-------------------------------------------------------------------------
+# Test that both "ORDER BY term" and "ORDER BY term DESC" work.
+#
+reset_db
+do_execsql_test 9.1 {
+  CREATE VIRTUAL TABLE x1 USING fts5(x);
+  INSERT INTO x1 VALUES('def ABC ghi');
+  INSERT INTO x1 VALUES('DEF abc GHI');
+}
+
+do_execsql_test 9.2 {
+  CREATE VIRTUAL TABLE rrr USING fts5vocab(x1, row);
+  SELECT * FROM rrr
+} {
+  abc 2 2 def 2 2 ghi 2 2
+}
+do_execsql_test 9.3 {
+  SELECT * FROM rrr ORDER BY term ASC
+} {
+  abc 2 2 def 2 2 ghi 2 2
+}
+do_execsql_test 9.4 {
+  SELECT * FROM rrr ORDER BY term DESC
+} {
+  ghi 2 2 def 2 2 abc 2 2 
+}
+do_test 9.5 {
+  set e2 [db eval { EXPLAIN SELECT * FROM rrr ORDER BY term ASC }]
+  expr [lsearch $e2 SorterSort]<0
+} 1
+do_test 9.6 {
+  set e2 [db eval { EXPLAIN SELECT * FROM rrr ORDER BY term DESC }]
+  expr [lsearch $e2 SorterSort]<0
+} 0
+
+#-------------------------------------------------------------------------
+do_execsql_test 10.0 {
+  CREATE VIRTUAL TABLE ft USING fts5(a, b, c);
+  CREATE VIRTUAL TABLE t2 USING fts5vocab('ft','row');
+  CREATE VIRTUAL TABLE t3 USING fts5vocab('ft','row');
+}
+
+do_execsql_test 10.1 {
+  BEGIN;
+    INSERT INTO ft(b) VALUES('x y');
+}
+
+do_execsql_test 10.2 {
+  SELECT t2.term FROM t2;
+} {x y}
+
+do_execsql_test 10.3 {
+  SELECT t2.term, t3.term FROM t2, t3;
+} {x x x y y x y y}
+
+do_execsql_test 10.4 {
+  COMMIT;
+}
+
+do_execsql_test 10.5 {
+  BEGIN;
+    INSERT INTO ft(a) VALUES('1 2 3');
+    INSERT INTO ft(a) VALUES('4 5 6');
+    INSERT INTO ft(a) VALUES('1 2 3');
+    INSERT INTO ft(a) VALUES('4 5 6');
+    INSERT INTO ft(a) VALUES('1 2 3');
+    INSERT INTO ft(a) VALUES('4 5 6');
+}
+
+unset -nocomplain x res
+do_test 10.6 {
+  set res [list]
+  db eval { SELECT rowid FROM ft('4') } x {
+    db eval { SELECT * FROM t2 }
+    lappend res $x(rowid)
+  }
+  db eval COMMIT
+  set res
+} {3 5 7}
+
+do_execsql_test 10.6.1 {
+  SELECT * FROM t2 WHERE term<NULL;
+}
+do_execsql_test 10.6.2 {
+  SELECT * FROM t2 WHERE term>NULL;
+}
+do_execsql_test 10.6.3 {
+  SELECT * FROM t2 WHERE term=NULL;
+}
+do_execsql_test 10.7.1 {
+  SELECT * FROM t2 WHERE term<?;
+}
+do_execsql_test 10.7.2 {
+  SELECT * FROM t2 WHERE term>?;
+}
+do_execsql_test 10.7.3 {
+  SELECT * FROM t2 WHERE term=?;
+}
+
+# 2020-02-16  Detect recursively define fts5vocab() tables.
+# Error found by dbsqlfuzz.
+#
+reset_db
+do_execsql_test 11.100 {
+  CREATE VIRTUAL TABLE t3 USING fts5vocab(rowid , 'col');
+  CREATE VIRTUAL TABLE rowid USING fts5vocab(rowid , 'instance');
+} {}
+do_catchsql_test 11.110 {
+  SELECT rowid+1,rowid, * FROM t3 WHERE null>rowid ;
+} {1 {SQL logic error}}
+
+finish_test
diff --git a/ext/fts5/test/fts5vocab2.test b/ext/fts5/test/fts5vocab2.test
new file mode 100644
index 0000000000000000000000000000000000000000..7b3c3b0d6a975878e3f35e11a53e849f5be8fbe9
--- /dev/null
+++ b/ext/fts5/test/fts5vocab2.test
@@ -0,0 +1,310 @@
+# 2017 August 10
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# The tests in this file focus on testing the fts5vocab module.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5vocab2
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, b);
+  CREATE VIRTUAL TABLE v1 USING fts5vocab(t1, instance);
+
+  INSERT INTO t1 VALUES('one two', 'two three');
+  INSERT INTO t1 VALUES('three four', 'four five five five');
+}
+
+do_execsql_test 1.1 {
+  SELECT * FROM v1;
+} {
+  five  2 b 1
+  five  2 b 2
+  five  2 b 3
+  four  2 a 1
+  four  2 b 0
+  one   1 a 0
+  three 1 b 1
+  three 2 a 0
+  two   1 a 1
+  two   1 b 0
+}
+
+do_execsql_test 1.2 {
+  SELECT * FROM v1 WHERE term='three';
+} {
+  three 1 b 1
+  three 2 a 0
+}
+
+do_execsql_test 1.3 {
+  BEGIN;
+    DELETE FROM t1 WHERE rowid=2;
+    SELECT * FROM v1;
+  ROLLBACK;
+} {
+  one   1 a 0
+  three 1 b 1
+  two   1 a 1
+  two   1 b 0
+}
+
+do_execsql_test 1.4 {
+  BEGIN;
+    DELETE FROM t1 WHERE rowid=1;
+    SELECT * FROM v1;
+  ROLLBACK;
+} {
+  five  2 b 1
+  five  2 b 2
+  five  2 b 3
+  four  2 a 1
+  four  2 b 0
+  three 2 a 0
+}
+
+do_execsql_test 1.5 {
+  DELETE FROM t1;
+  SELECT * FROM v1;
+} {}
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test 2.0 {
+  DROP TABLE IF EXISTS t1;
+  DROP TABLE IF EXISTS v1;
+
+  CREATE VIRTUAL TABLE t1 USING fts5(a, b, detail=column);
+  CREATE VIRTUAL TABLE v1 USING fts5vocab(t1, instance);
+
+  INSERT INTO t1 VALUES('one two', 'two three');
+  INSERT INTO t1 VALUES('three four', 'four five five five');
+}
+
+do_execsql_test 2.1 {
+  SELECT * FROM v1;
+} {
+  five  2 b {}
+  four  2 a {}
+  four  2 b {}
+  one   1 a {}
+  three 1 b {}
+  three 2 a {}
+  two   1 a {}
+  two   1 b {}
+}
+
+do_execsql_test 2.2 {
+  SELECT * FROM v1 WHERE term='three';
+} {
+  three 1 b {}
+  three 2 a {}
+}
+
+do_execsql_test 2.3 {
+  BEGIN;
+    DELETE FROM t1 WHERE rowid=2;
+    SELECT * FROM v1;
+  ROLLBACK;
+} {
+  one   1 a {}
+  three 1 b {}
+  two   1 a {}
+  two   1 b {}
+}
+
+do_execsql_test 2.4 {
+  BEGIN;
+    DELETE FROM t1 WHERE rowid=1;
+    SELECT * FROM v1;
+  ROLLBACK;
+} {
+  five  2 b {}
+  four  2 a {}
+  four  2 b {}
+  three 2 a {}
+}
+
+do_execsql_test 2.5 {
+  DELETE FROM t1;
+  SELECT * FROM v1;
+} {}
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test 3.0 {
+  DROP TABLE IF EXISTS t1;
+  DROP TABLE IF EXISTS v1;
+
+  CREATE VIRTUAL TABLE t1 USING fts5(a, b, detail=none);
+  CREATE VIRTUAL TABLE v1 USING fts5vocab(t1, instance);
+
+  INSERT INTO t1 VALUES('one two', 'two three');
+  INSERT INTO t1 VALUES('three four', 'four five five five');
+}
+
+do_execsql_test 3.1 {
+  SELECT * FROM v1;
+} {
+  five  2 {} {}
+  four  2 {} {}
+  one   1 {} {}
+  three 1 {} {}
+  three 2 {} {}
+  two   1 {} {}
+}
+
+do_execsql_test 3.2 {
+  SELECT * FROM v1 WHERE term='three';
+} {
+  three 1 {} {}
+  three 2 {} {}
+}
+
+do_execsql_test 3.3 {
+  BEGIN;
+    DELETE FROM t1 WHERE rowid=2;
+    SELECT * FROM v1;
+  ROLLBACK;
+} {
+  one   1 {} {}
+  three 1 {} {}
+  two   1 {} {}
+}
+
+do_execsql_test 3.4 {
+  BEGIN;
+    DELETE FROM t1 WHERE rowid=1;
+    SELECT * FROM v1;
+  ROLLBACK;
+} {
+  five  2 {} {}
+  four  2 {} {}
+  three 2 {} {}
+}
+
+do_execsql_test 3.5 {
+  DELETE FROM t1;
+  SELECT * FROM v1;
+} {}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE v1 USING fts5vocab(nosuchtable, col);
+}
+
+do_catchsql_test 4.1 {
+  SELECT * FROM v1 WHERE term=='nosuchterm';
+} {1 {no such fts5 table: main.nosuchtable}}
+
+do_execsql_test 4.2.1 {
+  CREATE TABLE nosuchtable(nosuchtable, y, z);
+}
+do_catchsql_test 4.2.2 {
+  SELECT * FROM v1 WHERE term=='nosuchterm';
+} {1 {no such fts5 table: main.nosuchtable}}
+
+ifcapable fts3 {
+  do_execsql_test 4.3.1 {
+    DROP TABLE nosuchtable;
+    CREATE VIRTUAL TABLE nosuchtable USING fts3(a, b);
+  } {}
+  do_catchsql_test 4.3.2 {
+    SELECT * FROM v1 WHERE term=='nosuchterm';
+  } {1 {no such fts5 table: main.nosuchtable}}
+  do_catchsql_test 4.3.3 {
+    INSERT INTO nosuchtable VALUES('id', '*id');
+    SELECT * FROM v1 WHERE term=='nosuchterm';
+  } {1 {no such fts5 table: main.nosuchtable}}
+}
+
+#-------------------------------------------------------------------------
+# Check that the fts5 table cannot be written while there are vocab 
+# cursors open.
+reset_db
+do_execsql_test 5.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a);
+  CREATE VIRTUAL TABLE v1 USING fts5vocab(t1, instance);
+  INSERT INTO t1 VALUES('one'), ('two'), ('three'), ('four');
+}
+
+do_test 5.1 {
+  list [catch {
+    db eval { SELECT * FROM v1 } {
+      db eval {INSERT INTO t1 VALUES('five')}
+    }
+  } msg] $msg
+} {1 {query aborted}}
+
+do_execsql_test 5.2 {
+  SELECT * FROM t1
+} {one two three four five}
+
+#-------------------------------------------------------------------------
+# Check that the fts5 table cannot be written while there are vocab 
+# cursors open.
+reset_db
+do_execsql_test 5.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a);
+  CREATE VIRTUAL TABLE v1 USING fts5vocab(t1, instance);
+  WITH s(i) AS (
+    VALUES(1) UNION ALL SELECT i+1 FROM s WHERE i<10000
+  )
+  INSERT INTO t1 SELECT 
+    'State Emergency Service (SES), Rural Fire Service (RFS) and Volunteers'
+  FROM s;
+}
+
+do_catchsql_test 5.1 {
+  INSERT INTO t1 SELECT rowid FROM v1
+} {1 {query aborted}}
+
+do_catchsql_test 5.2 {
+  DELETE FROM t1 WHERE rowid>100;
+  INSERT INTO t1 SELECT randomblob(3000) FROM v1
+} {1 {query aborted}}
+
+#-------------------------------------------------------------------------
+reset_db
+sqlite3_fts5_may_be_corrupt 1
+
+do_execsql_test 6.0 {
+  BEGIN TRANSACTION;
+    CREATE VIRTUAL TABLE t1 USING fts5(a,b unindexed,c,tokenize="porter ascii",tokendata=1);
+    REPLACE INTO t1_data VALUES(1,X'03090009');
+    REPLACE INTO t1_data VALUES(10,X'000000000103030003010101020101030101');
+    REPLACE INTO t1_data VALUES(137438953473,X'0000002e023061010202010162010203010163010204010167010601020201016801060102030101690106010204040606060808');
+    REPLACE INTO t1_data VALUES(274877906945,X'0000001f013067020802010202010168020803010203010169020804010204040909');
+    REPLACE INTO t1_data VALUES(412316860417,X'0000002e023061030202010162030203010163030204010167030601020201016803060102030101690306010204040606060808');
+  COMMIT;
+}
+
+do_execsql_test 6.1 {
+  CREATE VIRTUAL TABLE t3 USING fts5vocab('t1', 'row');
+}
+
+do_catchsql_test 6.2 {
+  SELECT * FROM t3;
+} {1 {database disk image is malformed}}
+
+sqlite3_fts5_may_be_corrupt 0
+
+finish_test
+
+
diff --git a/ext/fts5/tool/fts5speed.tcl b/ext/fts5/tool/fts5speed.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..0f38638c26ae553df7812b1ffb3ffc1b26ff7714
--- /dev/null
+++ b/ext/fts5/tool/fts5speed.tcl
@@ -0,0 +1,64 @@
+
+
+set Q {
+  {1   "SELECT count(*) FROM t1 WHERE t1 MATCH 'enron'"}
+  {25  "SELECT count(*) FROM t1 WHERE t1 MATCH 'hours'"}
+  {300 "SELECT count(*) FROM t1 WHERE t1 MATCH 'acid'"}
+  {100 "SELECT count(*) FROM t1 WHERE t1 MATCH 'loaned OR mobility OR popcore OR sunk'"}
+  {100 "SELECT count(*) FROM t1 WHERE t1 MATCH 'enron AND myapps'"}
+  {1   "SELECT count(*) FROM t1 WHERE t1 MATCH 'en* AND my*'"}
+
+  {1   "SELECT count(*) FROM t1 WHERE t1 MATCH 'c:t*'"}
+  {1   "SELECT count(*) FROM t1 WHERE t1 MATCH 'a:t* OR b:t* OR c:t* OR d:t* OR e:t* OR f:t* OR g:t*'"}
+  {1   "SELECT count(*) FROM t1 WHERE t1 MATCH 'a:t*'"}
+  {2   "SELECT count(*) FROM t1 WHERE t1 MATCH 'c:the'"}
+
+  {2   "SELECT count(*) FROM t1 WHERE t1 MATCH 'd:holmes OR e:holmes OR f:holmes OR g:holmes'" }
+  {2   "SELECT count(*) FROM t1 WHERE t1 MATCH 'd:holmes AND e:holmes AND f:holmes AND g:holmes'" }
+  {4   "SELECT count(*) FROM t1 WHERE t1 MATCH 'd:holmes NOT e:holmes'" }
+}
+
+proc usage {} {
+  global Q
+  puts stderr "Usage: $::argv0 DATABASE QUERY"
+  puts stderr ""
+  for {set i 1} {$i <= [llength $Q]} {incr i} {
+    puts stderr "       $i. [lindex $Q [expr $i-1]]"
+  }
+  puts stderr ""
+  exit -1
+}
+
+
+set nArg [llength $argv]
+if {$nArg!=2 && $nArg!=3} usage
+set database [lindex $argv 0]
+set iquery [lindex $argv 1]
+if {$iquery<1 || $iquery>[llength $Q]} usage
+set nRepeat 0
+if {$nArg==3} { set nRepeat [lindex $argv 2] }
+
+
+sqlite3 db $database
+catch { load_static_extension db fts5 }
+
+incr iquery -1
+set sql [lindex $Q $iquery 1]
+if {$nRepeat==0} {
+  set nRepeat [lindex $Q $iquery 0]
+}
+
+puts "sql:     $sql"
+puts "nRepeat: $nRepeat"
+if {[regexp matchinfo $sql]} {
+  sqlite3_fts5_register_matchinfo db
+  db eval $sql 
+} else {
+  puts "result:  [db eval $sql]"
+}
+
+for {set i 1} {$i < $nRepeat} {incr i} {
+  db eval $sql
+}
+
+
diff --git a/ext/fts5/tool/fts5txt2db.tcl b/ext/fts5/tool/fts5txt2db.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..1996b2c313693cbfd67cb714cd19c892e0171c1c
--- /dev/null
+++ b/ext/fts5/tool/fts5txt2db.tcl
@@ -0,0 +1,231 @@
+##########################################################################
+# 2016 Jan 27
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+proc process_cmdline {} { 
+  cmdline::process ::A $::argv {
+    {fts5                 "use fts5 (this is the default)"}
+    {fts4                 "use fts4"}
+    {trigram              "Use tokenize=trigram"}
+    {colsize   "10 10 10" "list of column sizes"}
+    {tblname   "t1"       "table name to create"}
+    {detail    "full"     "Fts5 detail mode to use"}
+    {repeat    1          "Load each file this many times"}
+    {prefix    ""         "Fts prefix= option"}
+    {trans     1          "True to use a transaction"}
+    database
+    file...
+  } {
+  This script is designed to create fts4/5 tables with more than one column.
+  The -colsize option should be set to a Tcl list of integer values, one for
+  each column in the table. Each value is the number of tokens that will be
+  inserted into the column value for each row. For example, setting the -colsize
+  option to "5 10" creates an FTS table with 2 columns, with roughly 5 and 10
+  tokens per row in each, respectively.
+  
+  Each "FILE" argument should be a text file. The contents of these text files
+  is split on whitespace characters to form a list of tokens. The first N1
+  tokens are used for the first column of the first row, where N1 is the first
+  element of the -colsize list. The next N2 are used for the second column of
+  the first row, and so on. Rows are added to the table until the entire list
+  of tokens is exhausted.
+  }
+}
+
+###########################################################################
+###########################################################################
+# Command line options processor. This is generic code that can be copied
+# between scripts.
+#
+namespace eval cmdline {
+  proc cmdline_error {O E {msg ""}} {
+    if {$msg != ""} {
+      puts stderr "Error: $msg"
+      puts stderr ""
+    }
+  
+    set L [list]
+    foreach o $O {
+      if {[llength $o]==1} {
+        lappend L [string toupper $o]
+      }
+    }
+  
+    puts stderr "Usage: $::argv0 ?SWITCHES? $L"
+    puts stderr ""
+    puts stderr "Switches are:"
+    foreach o $O {
+      if {[llength $o]==3} {
+        foreach {a b c} $o {}
+        puts stderr [format "    -%-15s %s (default \"%s\")" "$a VAL" $c $b]
+      } elseif {[llength $o]==2} {
+        foreach {a b} $o {}
+        puts stderr [format "    -%-15s %s" $a $b]
+      }
+    }
+    puts stderr ""
+    puts stderr $E
+    exit -1
+  }
+  
+  proc process {avar lArgs O E} {
+    upvar $avar A
+    set zTrailing ""       ;# True if ... is present in $O
+    set lPosargs [list]
+  
+    # Populate A() with default values. Also, for each switch in the command
+    # line spec, set an entry in the idx() array as follows:
+    #
+    #  {tblname t1 "table name to use"}  
+    #      -> [set idx(-tblname) {tblname t1 "table name to use"}  
+    #
+    # For each position parameter, append its name to $lPosargs. If the ...
+    # specifier is present, set $zTrailing to the name of the prefix.
+    #
+    foreach o $O {
+      set nm [lindex $o 0]
+      set nArg [llength $o]
+      switch -- $nArg {
+        1 {
+          if {[string range $nm end-2 end]=="..."} {
+            set zTrailing [string range $nm 0 end-3]
+          } else {
+            lappend lPosargs $nm
+          }
+        }
+        2 {
+          set A($nm) 0
+          set idx(-$nm) $o
+        }
+        3 {
+          set A($nm) [lindex $o 1]
+          set idx(-$nm) $o
+        }
+        default {
+          error "Error in command line specification"
+        }
+      }
+    }
+  
+    # Set explicitly specified option values
+    #
+    set nArg [llength $lArgs]
+    for {set i 0} {$i < $nArg} {incr i} {
+      set opt [lindex $lArgs $i]
+      if {[string range $opt 0 0]!="-" || $opt=="--"} break
+      set c [array names idx "${opt}*"]
+      if {[llength $c]==0} { cmdline_error $O $E "Unrecognized option: $opt"}
+      if {[llength $c]>1}  { cmdline_error $O $E "Ambiguous option: $opt"}
+  
+      if {[llength $idx($c)]==3} {
+        if {$i==[llength $lArgs]-1} {
+          cmdline_error $O $E "Option requires argument: $c" 
+        }
+        incr i
+        set A([lindex $idx($c) 0]) [lindex $lArgs $i]
+      } else {
+        set A([lindex $idx($c) 0]) 1
+      }
+    }
+  
+    # Deal with position arguments.
+    #
+    set nPosarg [llength $lPosargs]
+    set nRem [expr $nArg - $i]
+    if {$nRem < $nPosarg || ($zTrailing=="" && $nRem > $nPosarg)} {
+      cmdline_error $O $E
+    }
+    for {set j 0} {$j < $nPosarg} {incr j} {
+      set A([lindex $lPosargs $j]) [lindex $lArgs [expr $j+$i]]
+    }
+    if {$zTrailing!=""} {
+      set A($zTrailing) [lrange $lArgs [expr $j+$i] end]
+    }
+  }
+} ;# namespace eval cmdline
+# End of command line options processor.
+###########################################################################
+###########################################################################
+
+process_cmdline
+
+# If -fts4 was specified, use fts4. Otherwise, fts5.
+if {$A(fts4)} {
+  set A(fts) fts4
+} else {
+  set A(fts) fts5
+}
+
+sqlite3 db $A(database)
+
+# Create the FTS table in the db. Return a list of the table columns.
+#
+proc create_table {} {
+  global A
+  set cols [list a b c d e f g h i j k l m n o p q r s t u v w x y z]
+
+  set nCol [llength $A(colsize)]
+  set cols [lrange $cols 0 [expr $nCol-1]]
+
+  set sql    "CREATE VIRTUAL TABLE IF NOT EXISTS $A(tblname) USING $A(fts) ("
+  append sql [join $cols ,]
+  if {$A(fts)=="fts5"} { append sql ",detail=$A(detail)" }
+  if {$A(trigram)} { append sql ",tokenize=trigram" }
+  append sql ", prefix='$A(prefix)');"
+
+  db eval $sql
+  return $cols
+}
+
+# Return a list of tokens from the named file.
+#
+proc readfile {file} {
+  set fd [open $file]
+  set data [read $fd]
+  close $fd
+  split $data
+}
+
+proc repeat {L n} {
+  set res [list]
+  for {set i 0} {$i < $n} {incr i} {
+    set res [concat $res $L]
+  }
+  set res
+}
+
+
+# Load all the data into a big list of tokens.
+#
+set tokens [list]
+foreach f $A(file) {
+  set tokens [concat $tokens [repeat [readfile $f] $A(repeat)]]
+}
+
+set N [llength $tokens]
+set i 0
+set cols [create_table]
+set sql "INSERT INTO $A(tblname) VALUES(\$R([lindex $cols 0])"
+foreach c [lrange $cols 1 end] {
+  append sql ", \$R($c)"
+}
+append sql ")"
+
+if {$A(trans)} { db eval BEGIN }
+  while {$i < $N} {
+    foreach c $cols s $A(colsize) {
+      set R($c) [lrange $tokens $i [expr $i+$s-1]]
+      incr i $s
+    }
+    db eval $sql
+  }
+if {$A(trans)} { db eval COMMIT }
+
+
+
diff --git a/ext/fts5/tool/loadfts5.tcl b/ext/fts5/tool/loadfts5.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..96fd69260ec2aaf86451a4a1dad8b33f30779830
--- /dev/null
+++ b/ext/fts5/tool/loadfts5.tcl
@@ -0,0 +1,172 @@
+
+
+proc loadfile {f} {
+  set fd [open $f]
+  set data [read $fd]
+  close $fd
+  return $data
+}
+
+set ::nRow 0
+set ::nRowPerDot 1000
+
+proc load_hierachy {dir} {
+  foreach f [glob -nocomplain -dir $dir *] {
+    if {$::O(limit) && $::nRow>=$::O(limit)} break
+    if {[file isdir $f]} {
+      load_hierachy $f
+    } else {
+      db eval { INSERT INTO t1 VALUES($f, loadfile($f)) }
+      incr ::nRow
+
+      if {$::O(trans) && ($::nRow % $::O(trans))==0} {
+        db eval { COMMIT }
+        db eval { INSERT INTO t1(t1) VALUES('integrity-check') }
+        db eval { BEGIN }
+      }
+
+      if {($::nRow % $::nRowPerDot)==0} {
+        puts -nonewline .
+        if {($::nRow % (65*$::nRowPerDot))==0} { puts "" }
+        flush stdout
+      }
+
+    }
+  }
+}
+
+proc usage {} {
+  puts stderr "Usage: $::argv0 ?SWITCHES? DATABASE PATH"
+  puts stderr ""
+  puts stderr "Switches are:"
+  puts stderr "  -fts4        (use fts4 instead of fts5)"
+  puts stderr "  -fts5        (use fts5)"
+  puts stderr "  -porter      (use porter tokenizer)"
+  puts stderr "  -delete      (delete the database file before starting)"
+  puts stderr "  -limit N     (load no more than N documents)"
+  puts stderr "  -automerge N (set the automerge parameter to N)"
+  puts stderr "  -crisismerge N (set the crisismerge parameter to N)"
+  puts stderr "  -prefix PREFIX (comma separated prefix= argument)"
+  puts stderr "  -trans N     (commit after N inserts - 0 == never)"
+  puts stderr "  -hashsize N  (set the fts5 hashsize parameter to N)"
+  puts stderr "  -detail MODE (detail mode for fts5 tables)"
+  exit 1
+}
+
+set O(vtab)       fts5
+set O(tok)        ""
+set O(limit)      0
+set O(delete)     0
+set O(automerge)  -1
+set O(crisismerge)  -1
+set O(prefix)     ""
+set O(trans)      0
+set O(hashsize)   -1
+set O(detail)     full
+
+if {[llength $argv]<2} usage
+set nOpt [expr {[llength $argv]-2}]
+for {set i 0} {$i < $nOpt} {incr i} {
+  set arg [lindex $argv $i]
+  switch -- [lindex $argv $i] {
+    -fts4 {
+      set O(vtab) fts4
+    }
+
+    -fts5 {
+      set O(vtab) fts5
+    }
+
+    -porter {
+      set O(tok) ", tokenize=porter"
+    }
+
+    -delete {
+      set O(delete) 1
+    }
+
+    -limit {
+      if { [incr i]>=$nOpt } usage
+      set O(limit) [lindex $argv $i]
+    }
+
+    -trans {
+      if { [incr i]>=$nOpt } usage
+      set O(trans) [lindex $argv $i]
+    }
+    
+    -automerge {
+      if { [incr i]>=$nOpt } usage
+      set O(automerge) [lindex $argv $i]
+    }
+
+    -crisismerge {
+      if { [incr i]>=$nOpt } usage
+      set O(crisismerge) [lindex $argv $i]
+    }
+
+    -prefix {
+      if { [incr i]>=$nOpt } usage
+      set O(prefix) [lindex $argv $i]
+    }
+
+    -hashsize {
+      if { [incr i]>=$nOpt } usage
+      set O(hashsize) [lindex $argv $i]
+    }
+
+    -detail {
+      if { [incr i]>=$nOpt } usage
+      set O(detail) [lindex $argv $i]
+    }
+
+    default {
+      usage
+    }
+  }
+}
+
+set dbfile [lindex $argv end-1]
+if {$O(delete)} { file delete -force $dbfile }
+sqlite3 db $dbfile
+catch { load_static_extension db fts5 }
+db func loadfile loadfile
+db eval "PRAGMA page_size=4096"
+
+db eval BEGIN
+  set pref ""
+  if {$O(prefix)!=""} { set pref ", prefix='$O(prefix)'" }
+  if {$O(vtab)=="fts5"} {
+    append pref ", detail=$O(detail)"
+  }
+  catch {
+    db eval "CREATE VIRTUAL TABLE t1 USING $O(vtab) (path, content$O(tok)$pref)"
+    db eval "INSERT INTO t1(t1, rank) VALUES('pgsz', 4050);"
+  }
+
+  if {$O(hashsize)>=0} {
+    catch {
+      db eval "INSERT INTO t1(t1, rank) VALUES('hashsize', $O(hashsize));"
+    }
+  }
+
+
+  if {$O(automerge)>=0} {
+    if {$O(vtab) == "fts5"} {
+      db eval { INSERT INTO t1(t1, rank) VALUES('automerge', $O(automerge)) }
+    } else {
+      db eval { INSERT INTO t1(t1) VALUES('automerge=' || $O(automerge)) }
+    }
+  }
+  if {$O(crisismerge)>=0} {
+    if {$O(vtab) == "fts5"} {
+      db eval {INSERT INTO t1(t1, rank) VALUES('crisismerge', $O(crisismerge))}
+    } else {
+    }
+  }
+  load_hierachy [lindex $argv end]
+db eval COMMIT
+puts ""
+
+
+
diff --git a/ext/fts5/tool/mkfts5c.tcl b/ext/fts5/tool/mkfts5c.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..6f20a0cd734169fb693b2d4f0e1dbcfa4fc0ee23
--- /dev/null
+++ b/ext/fts5/tool/mkfts5c.tcl
@@ -0,0 +1,140 @@
+#!/bin/sh
+# restart with tclsh \
+exec tclsh "$0" "$@"
+
+set srcdir [file dirname [file dirname [file normalize [info script]]]]
+set G(src) [string map [list %dir% $srcdir] {
+  %dir%/fts5.h
+  %dir%/fts5Int.h
+  fts5parse.h
+  fts5parse.c
+  %dir%/fts5_aux.c
+  %dir%/fts5_buffer.c
+  %dir%/fts5_config.c
+  %dir%/fts5_expr.c
+  %dir%/fts5_hash.c
+  %dir%/fts5_index.c
+  %dir%/fts5_main.c
+  %dir%/fts5_storage.c
+  %dir%/fts5_tokenize.c
+  %dir%/fts5_unicode2.c
+  %dir%/fts5_varint.c
+  %dir%/fts5_vocab.c
+}]
+
+set G(hdr) {
+/*
+** This, the "fts5.c" source file, is a composite file that is itself
+** assembled from the following files:
+**
+**    fts5.h
+**    fts5Int.h
+**    fts5parse.h          <--- Generated from fts5parse.y by Lemon
+**    fts5parse.c          <--- Generated from fts5parse.y by Lemon
+**    fts5_aux.c
+**    fts5_buffer.c
+**    fts5_config.c
+**    fts5_expr.c
+**    fts5_hash.c
+**    fts5_index.c
+**    fts5_main.c
+**    fts5_storage.c
+**    fts5_tokenize.c
+**    fts5_unicode2.c
+**    fts5_varint.c
+**    fts5_vocab.c
+*/
+#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS5) 
+
+#if !defined(NDEBUG) && !defined(SQLITE_DEBUG) 
+# define NDEBUG 1
+#endif
+#if defined(NDEBUG) && defined(SQLITE_DEBUG)
+# undef NDEBUG
+#endif
+
+#ifdef HAVE_STDINT_H
+#include <stdint.h>
+#endif
+#ifdef HAVE_INTTYPES_H
+#include <inttypes.h>
+#endif
+}
+
+set G(footer) {
+/* Here ends the fts5.c composite file. */
+#endif /* !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS5) */
+}
+
+#-------------------------------------------------------------------------
+# Read and return the entire contents of text file $zFile from disk.
+#
+proc readfile {zFile} {
+  set fd [open $zFile]
+  set data [read $fd]
+  close $fd
+  return $data
+}
+
+#-------------------------------------------------------------------------
+# This command returns a string identifying the current sqlite version -
+# the equivalent of the SQLITE_SOURCE_ID string.
+#
+proc fts5_source_id {zDir} {
+  set top [file dirname [file dirname $zDir]]
+  set uuid [string trim [readfile [file join $top manifest.uuid]]]
+
+  set L [split [readfile [file join $top manifest]]] 
+  set date [lindex $L [expr [lsearch -exact $L D]+1]]
+  set idx [expr {[string last . $date]-1}]
+  set date [string range $date 0 $idx]
+  set date [string map {T { }} $date]
+
+  return "fts5: $date $uuid"
+}
+
+proc fts5c_init {zOut} {
+  global G
+  set G(fd) stdout
+  set G(fd) [open $zOut w]
+
+  puts -nonewline $G(fd) $G(hdr)
+}
+
+proc fts5c_printfile {zIn} {
+  global G
+  set data [readfile $zIn]
+  set zTail [file tail $zIn]
+  puts $G(fd) "#line 1 \"$zTail\""
+
+  set sub_map [list --FTS5-SOURCE-ID-- [fts5_source_id $::srcdir]]
+  if {$zTail=="fts5parse.c"} {
+    lappend sub_map yy fts5yy YY fts5YY TOKEN FTS5TOKEN
+  }
+
+  foreach line [split $data "\n"] {
+    if {[regexp {^#include.*fts5} $line]} {
+      set line "/* $line */"
+    } elseif { 
+         ![regexp { sqlite3Fts5Init\(} $line] 
+       && [regexp {^(const )?[a-zA-Z][a-zA-Z0-9]* [*]?sqlite3Fts5} $line]
+    } {
+      set line "static $line"
+    }
+    set line [string map $sub_map $line]
+    puts $G(fd) $line
+  }
+}
+
+proc fts5c_close {} {
+  global G
+  puts -nonewline $G(fd) $G(footer)
+  if {$G(fd)!="stdout"} {
+    close $G(fd)
+  }
+}
+
+
+fts5c_init fts5.c
+foreach f $G(src) { fts5c_printfile $f }
+fts5c_close
diff --git a/ext/fts5/tool/showfts5.tcl b/ext/fts5/tool/showfts5.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..75ac0f1c8f809dca172b1130b3a0452cc2c4d127
--- /dev/null
+++ b/ext/fts5/tool/showfts5.tcl
@@ -0,0 +1,97 @@
+
+
+
+#-------------------------------------------------------------------------
+# Process command line arguments.
+#
+proc usage {} {
+  puts stderr "usage: $::argv0 ?OPTIONS? database table"
+  puts stderr ""
+  puts stderr "  -nterm                (count number of terms in each segment)"
+  puts stderr "  -segments             (output segment contents)"
+  puts stderr ""
+  exit 1
+}
+
+set O(nterm) 0
+set O(segments) 0
+
+if {[llength $argv]<2} usage
+foreach a [lrange $argv 0 end-2] {
+  switch -- $a {
+    -nterm {
+      set O(nterm) 1
+    }
+
+    -segments {
+      set O(segments) 1
+    }
+
+    default {
+      usage
+    }
+  }
+}
+
+set database [lindex $argv end-1]
+set tbl [lindex $argv end]
+
+
+#-------------------------------------------------------------------------
+# Count the number of terms in each segment of fts5 table $tbl. Store the
+# counts in the array variable in the parent context named by parameter
+# $arrayname, indexed by segment-id. Example:
+#
+#   count_terms fts_tbl A
+#   foreach {k v} [array get A] { puts "segid=$k nTerm=$v" }
+#
+proc count_terms {tbl arrayname} {
+  upvar A $arrayname
+  array unset A
+  db eval "SELECT fts5_decode(rowid, block) AS d FROM ${tbl}_data" {
+    set desc [lindex $d 0]
+    if {[regexp {^segid=([0-9]*)} $desc -> id]} {
+      foreach i [lrange $d 1 end] {
+        if {[string match {term=*} $i]} { incr A($id) }
+      }
+    }
+  }
+}
+
+
+#-------------------------------------------------------------------------
+# Start of main program.
+#
+sqlite3 db $database
+catch { load_static_extension db fts5 }
+
+if {$O(nterm)} { count_terms $tbl A }
+
+db eval "SELECT fts5_decode(rowid, block) AS d FROM ${tbl}_data WHERE id=10" {
+  foreach lvl [lrange $d 1 end] {
+    puts [lrange $lvl 0 2]
+
+    foreach seg [lrange $lvl 3 end] {
+      if {$::O(nterm)} {
+        regexp {^id=([0-9]*)} $seg -> id
+        set nTerm 0
+        catch { set nTerm $A($id) }
+        puts [format "        % -28s    nTerm=%d" $seg $nTerm]
+      } else {
+        puts [format "        % -28s" $seg]
+      }
+    }
+  }
+}
+
+if {$O(segments)} {
+  puts ""
+  db eval "SELECT fts5_decode(rowid, block) AS d FROM ${tbl}_data WHERE id>10" {
+    puts $d
+  }
+}
+
+
+
+
+
diff --git a/ext/icu/README.txt b/ext/icu/README.txt
new file mode 100644
index 0000000000000000000000000000000000000000..40def24662ad09ae169a0fb83947afe35faad3bc
--- /dev/null
+++ b/ext/icu/README.txt
@@ -0,0 +1,168 @@
+This directory contains source code for the SQLite "ICU" extension, an
+integration of the "International Components for Unicode" library with
+SQLite. Documentation follows.
+
+    1. Features
+
+        1.1  SQL Scalars upper() and lower()
+        1.2  Unicode Aware LIKE Operator
+        1.3  ICU Collation Sequences
+        1.4  SQL REGEXP Operator
+
+    2. Compilation and Usage
+
+    3. Bugs, Problems and Security Issues
+
+        3.1  The "case_sensitive_like" Pragma
+        3.2  The SQLITE_MAX_LIKE_PATTERN_LENGTH Macro
+        3.3  Collation Sequence Security Issue
+
+
+1. FEATURES
+
+  1.1  SQL Scalars upper() and lower()
+
+    SQLite's built-in implementations of these two functions only
+    provide case mapping for the 26 letters used in the English
+    language. The ICU based functions provided by this extension
+    provide case mapping, where defined, for the full range of
+    unicode characters.
+
+    ICU provides two types of case mapping, "general" case mapping and
+    "language specific". Refer to ICU documentation for the differences
+    between the two. Specifically:
+
+       http://www.icu-project.org/userguide/caseMappings.html
+       http://www.icu-project.org/userguide/posix.html#case_mappings
+
+    To utilise "general" case mapping, the upper() or lower() scalar
+    functions are invoked with one argument:
+
+        upper('abc') -> 'ABC'
+        lower('ABC') -> 'abc'
+
+    To access ICU "language specific" case mapping, upper() or lower()
+    should be invoked with two arguments. The second argument is the name
+    of the locale to use. Passing an empty string ("") or SQL NULL value
+    as the second argument is the same as invoking the 1 argument version
+    of upper() or lower():
+
+        lower('I', 'en_us') -> 'i'
+        lower('I', 'tr_tr') -> 'ı' (small dotless i)
+
+  1.2  Unicode Aware LIKE Operator
+
+    Similarly to the upper() and lower() functions, the built-in SQLite LIKE
+    operator understands case equivalence for the 26 letters of the English
+    language alphabet. The implementation of LIKE included in this
+    extension uses the ICU function u_foldCase() to provide case
+    independent comparisons for the full range of unicode characters.
+
+    The U_FOLD_CASE_DEFAULT flag is passed to u_foldCase(), meaning the
+    dotless 'I' character used in the Turkish language is considered
+    to be in the same equivalence class as the dotted 'I' character
+    used by many languages (including English).
+
+  1.3  ICU Collation Sequences
+
+    A special SQL scalar function, icu_load_collation() is provided that
+    may be used to register ICU collation sequences with SQLite. It
+    is always called with exactly two arguments, the ICU locale
+    identifying the collation sequence to ICU, and the name of the
+    SQLite collation sequence to create. For example, to create an
+    SQLite collation sequence named "turkish" using Turkish language
+    sorting rules, the SQL statement:
+
+        SELECT icu_load_collation('tr_TR', 'turkish');
+
+    Or, for Australian English:
+
+        SELECT icu_load_collation('en_AU', 'australian');
+
+    The identifiers "turkish" and "australian" may then be used
+    as collation sequence identifiers in SQL statements:
+
+        CREATE TABLE aust_turkish_penpals(
+          australian_penpal_name TEXT COLLATE australian,
+          turkish_penpal_name    TEXT COLLATE turkish
+        );
+
+  1.4 SQL REGEXP Operator
+
+    This extension provides an implementation of the SQL binary
+    comparision operator "REGEXP", based on the regular expression functions
+    provided by the ICU library. The syntax of the operator is as described
+    in SQLite documentation:
+
+        <string> REGEXP <re-pattern>
+
+    This extension uses the ICU defaults for regular expression matching
+    behavior. Specifically, this means that:
+
+        * Matching is case-sensitive,
+        * Regular expression comments are not allowed within patterns, and
+        * The '^' and '$' characters match the beginning and end of the
+          <string> argument, not the beginning and end of lines within
+          the <string> argument.
+
+    Even more specifically, the value passed to the "flags" parameter
+    of ICU C function uregex_open() is 0.
+
+
+2  COMPILATION AND USAGE
+
+  The easiest way to compile and use the ICU extension is to build
+  and use it as a dynamically loadable SQLite extension. To do this
+  using gcc on *nix:
+
+    gcc -fPIC -shared icu.c `pkg-config --libs --cflags icu-io` \
+        -o libSqliteIcu.so
+
+  You may need to add "-I" flags so that gcc can find sqlite3ext.h
+  and sqlite3.h. The resulting shared lib, libSqliteIcu.so, may be
+  loaded into sqlite in the same way as any other dynamically loadable
+  extension.
+
+  As of version 3.48, it can be enabled in the canonical build process
+  by passing one of --with-icu-config or --with-icu-ldflags to the
+  configure script, optionally together with --enable-icu-collations.
+  See the configure --help for more details.
+
+
+3 BUGS, PROBLEMS AND SECURITY ISSUES
+
+  3.1 The "case_sensitive_like" Pragma
+
+    This extension does not work well with the "case_sensitive_like"
+    pragma. If this pragma is used before the ICU extension is loaded,
+    then the pragma has no effect. If the pragma is used after the ICU
+    extension is loaded, then SQLite ignores the ICU implementation and
+    always uses the built-in LIKE operator.
+
+    The ICU extension LIKE operator is always case insensitive.
+
+  3.2 The SQLITE_MAX_LIKE_PATTERN_LENGTH Macro
+
+    Passing very long patterns to the built-in SQLite LIKE operator can
+    cause excessive CPU usage. To curb this problem, SQLite defines the
+    SQLITE_MAX_LIKE_PATTERN_LENGTH macro as the maximum length of a
+    pattern in bytes (irrespective of encoding). The default value is
+    defined in internal header file "limits.h".
+
+    The ICU extension LIKE implementation suffers from the same
+    problem and uses the same solution. However, since the ICU extension
+    code does not include the SQLite file "limits.h", modifying
+    the default value therein does not affect the ICU extension.
+    The default value of SQLITE_MAX_LIKE_PATTERN_LENGTH used by
+    the ICU extension LIKE operator is 50000, defined in source
+    file "icu.c".
+
+  3.3 Collation Sequence Security
+
+    Internally, SQLite assumes that indices stored in database files
+    are sorted according to the collation sequence indicated by the
+    SQL schema. Changing the definition of a collation sequence after
+    an index has been built is therefore equivalent to database
+    corruption. The SQLite library is well tested for robustness in
+    the fact of database corruption.  Database corruption may well
+    lead to incorrect answers, but should not cause memory errors.
diff --git a/ext/icu/icu.c b/ext/icu/icu.c
new file mode 100644
index 0000000000000000000000000000000000000000..50110072b5fd705136f275522b087de898ed7d18
--- /dev/null
+++ b/ext/icu/icu.c
@@ -0,0 +1,588 @@
+/*
+** 2007 May 6
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** $Id: icu.c,v 1.7 2007/12/13 21:54:11 drh Exp $
+**
+** This file implements an integration between the ICU library 
+** ("International Components for Unicode", an open-source library 
+** for handling unicode data) and SQLite. The integration uses 
+** ICU to provide the following to SQLite:
+**
+**   * An implementation of the SQL regexp() function (and hence REGEXP
+**     operator) using the ICU uregex_XX() APIs.
+**
+**   * Implementations of the SQL scalar upper() and lower() functions
+**     for case mapping.
+**
+**   * Integration of ICU and SQLite collation sequences.
+**
+**   * An implementation of the LIKE operator that uses ICU to 
+**     provide case-independent matching.
+*/
+
+#if !defined(SQLITE_CORE)                  \
+ || defined(SQLITE_ENABLE_ICU)             \
+ || defined(SQLITE_ENABLE_ICU_COLLATIONS)
+
+/* Include ICU headers */
+#include <unicode/utypes.h>
+#include <unicode/uregex.h>
+#include <unicode/ustring.h>
+#include <unicode/ucol.h>
+
+#include <assert.h>
+
+#ifndef SQLITE_CORE
+  #include "sqlite3ext.h"
+  SQLITE_EXTENSION_INIT1
+#else
+  #include "sqlite3.h"
+#endif
+
+/*
+** This function is called when an ICU function called from within
+** the implementation of an SQL scalar function returns an error.
+**
+** The scalar function context passed as the first argument is 
+** loaded with an error message based on the following two args.
+*/
+static void icuFunctionError(
+  sqlite3_context *pCtx,       /* SQLite scalar function context */
+  const char *zName,           /* Name of ICU function that failed */
+  UErrorCode e                 /* Error code returned by ICU function */
+){
+  char zBuf[128];
+  sqlite3_snprintf(128, zBuf, "ICU error: %s(): %s", zName, u_errorName(e));
+  zBuf[127] = '\0';
+  sqlite3_result_error(pCtx, zBuf, -1);
+}
+
+#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_ICU)
+
+/*
+** Maximum length (in bytes) of the pattern in a LIKE or GLOB
+** operator.
+*/
+#ifndef SQLITE_MAX_LIKE_PATTERN_LENGTH
+# define SQLITE_MAX_LIKE_PATTERN_LENGTH 50000
+#endif
+
+/*
+** Version of sqlite3_free() that is always a function, never a macro.
+*/
+static void xFree(void *p){
+  sqlite3_free(p);
+}
+
+/*
+** This lookup table is used to help decode the first byte of
+** a multi-byte UTF8 character. It is copied here from SQLite source
+** code file utf8.c.
+*/
+static const unsigned char icuUtf8Trans1[] = {
+  0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+  0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
+  0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
+  0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
+  0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+  0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
+  0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+  0x00, 0x01, 0x02, 0x03, 0x00, 0x01, 0x00, 0x00,
+};
+
+#define SQLITE_ICU_READ_UTF8(zIn, c)                       \
+  c = *(zIn++);                                            \
+  if( c>=0xc0 ){                                           \
+    c = icuUtf8Trans1[c-0xc0];                             \
+    while( (*zIn & 0xc0)==0x80 ){                          \
+      c = (c<<6) + (0x3f & *(zIn++));                      \
+    }                                                      \
+  }
+
+#define SQLITE_ICU_SKIP_UTF8(zIn)                          \
+  assert( *zIn );                                          \
+  if( *(zIn++)>=0xc0 ){                                    \
+    while( (*zIn & 0xc0)==0x80 ){zIn++;}                   \
+  }
+
+
+/*
+** Compare two UTF-8 strings for equality where the first string is
+** a "LIKE" expression. Return true (1) if they are the same and 
+** false (0) if they are different.
+*/
+static int icuLikeCompare(
+  const uint8_t *zPattern,   /* LIKE pattern */
+  const uint8_t *zString,    /* The UTF-8 string to compare against */
+  const UChar32 uEsc         /* The escape character */
+){
+  static const uint32_t MATCH_ONE = (uint32_t)'_';
+  static const uint32_t MATCH_ALL = (uint32_t)'%';
+
+  int prevEscape = 0;     /* True if the previous character was uEsc */
+
+  while( 1 ){
+
+    /* Read (and consume) the next character from the input pattern. */
+    uint32_t uPattern;
+    SQLITE_ICU_READ_UTF8(zPattern, uPattern);
+    if( uPattern==0 ) break;
+
+    /* There are now 4 possibilities:
+    **
+    **     1. uPattern is an unescaped match-all character "%",
+    **     2. uPattern is an unescaped match-one character "_",
+    **     3. uPattern is an unescaped escape character, or
+    **     4. uPattern is to be handled as an ordinary character
+    */
+    if( uPattern==MATCH_ALL && !prevEscape && uPattern!=(uint32_t)uEsc ){
+      /* Case 1. */
+      uint8_t c;
+
+      /* Skip any MATCH_ALL or MATCH_ONE characters that follow a
+      ** MATCH_ALL. For each MATCH_ONE, skip one character in the 
+      ** test string.
+      */
+      while( (c=*zPattern) == MATCH_ALL || c == MATCH_ONE ){
+        if( c==MATCH_ONE ){
+          if( *zString==0 ) return 0;
+          SQLITE_ICU_SKIP_UTF8(zString);
+        }
+        zPattern++;
+      }
+
+      if( *zPattern==0 ) return 1;
+
+      while( *zString ){
+        if( icuLikeCompare(zPattern, zString, uEsc) ){
+          return 1;
+        }
+        SQLITE_ICU_SKIP_UTF8(zString);
+      }
+      return 0;
+
+    }else if( uPattern==MATCH_ONE && !prevEscape && uPattern!=(uint32_t)uEsc ){
+      /* Case 2. */
+      if( *zString==0 ) return 0;
+      SQLITE_ICU_SKIP_UTF8(zString);
+
+    }else if( uPattern==(uint32_t)uEsc && !prevEscape ){
+      /* Case 3. */
+      prevEscape = 1;
+
+    }else{
+      /* Case 4. */
+      uint32_t uString;
+      SQLITE_ICU_READ_UTF8(zString, uString);
+      uString = (uint32_t)u_foldCase((UChar32)uString, U_FOLD_CASE_DEFAULT);
+      uPattern = (uint32_t)u_foldCase((UChar32)uPattern, U_FOLD_CASE_DEFAULT);
+      if( uString!=uPattern ){
+        return 0;
+      }
+      prevEscape = 0;
+    }
+  }
+
+  return *zString==0;
+}
+
+/*
+** Implementation of the like() SQL function.  This function implements
+** the build-in LIKE operator.  The first argument to the function is the
+** pattern and the second argument is the string.  So, the SQL statements:
+**
+**       A LIKE B
+**
+** is implemented as like(B, A). If there is an escape character E, 
+**
+**       A LIKE B ESCAPE E
+**
+** is mapped to like(B, A, E).
+*/
+static void icuLikeFunc(
+  sqlite3_context *context, 
+  int argc, 
+  sqlite3_value **argv
+){
+  const unsigned char *zA = sqlite3_value_text(argv[0]);
+  const unsigned char *zB = sqlite3_value_text(argv[1]);
+  UChar32 uEsc = 0;
+
+  /* Limit the length of the LIKE or GLOB pattern to avoid problems
+  ** of deep recursion and N*N behavior in patternCompare().
+  */
+  if( sqlite3_value_bytes(argv[0])>SQLITE_MAX_LIKE_PATTERN_LENGTH ){
+    sqlite3_result_error(context, "LIKE or GLOB pattern too complex", -1);
+    return;
+  }
+
+
+  if( argc==3 ){
+    /* The escape character string must consist of a single UTF-8 character.
+    ** Otherwise, return an error.
+    */
+    int nE= sqlite3_value_bytes(argv[2]);
+    const unsigned char *zE = sqlite3_value_text(argv[2]);
+    int i = 0;
+    if( zE==0 ) return;
+    U8_NEXT(zE, i, nE, uEsc);
+    if( i!=nE){
+      sqlite3_result_error(context, 
+          "ESCAPE expression must be a single character", -1);
+      return;
+    }
+  }
+
+  if( zA && zB ){
+    sqlite3_result_int(context, icuLikeCompare(zA, zB, uEsc));
+  }
+}
+
+/*
+** Function to delete compiled regexp objects. Registered as
+** a destructor function with sqlite3_set_auxdata().
+*/
+static void icuRegexpDelete(void *p){
+  URegularExpression *pExpr = (URegularExpression *)p;
+  uregex_close(pExpr);
+}
+
+/*
+** Implementation of SQLite REGEXP operator. This scalar function takes
+** two arguments. The first is a regular expression pattern to compile
+** the second is a string to match against that pattern. If either 
+** argument is an SQL NULL, then NULL Is returned. Otherwise, the result
+** is 1 if the string matches the pattern, or 0 otherwise.
+**
+** SQLite maps the regexp() function to the regexp() operator such
+** that the following two are equivalent:
+**
+**     zString REGEXP zPattern
+**     regexp(zPattern, zString)
+**
+** Uses the following ICU regexp APIs:
+**
+**     uregex_open()
+**     uregex_matches()
+**     uregex_close()
+*/
+static void icuRegexpFunc(sqlite3_context *p, int nArg, sqlite3_value **apArg){
+  UErrorCode status = U_ZERO_ERROR;
+  URegularExpression *pExpr;
+  UBool res;
+  const UChar *zString = sqlite3_value_text16(apArg[1]);
+
+  (void)nArg;  /* Unused parameter */
+
+  /* If the left hand side of the regexp operator is NULL, 
+  ** then the result is also NULL. 
+  */
+  if( !zString ){
+    return;
+  }
+
+  pExpr = sqlite3_get_auxdata(p, 0);
+  if( !pExpr ){
+    const UChar *zPattern = sqlite3_value_text16(apArg[0]);
+    if( !zPattern ){
+      return;
+    }
+    pExpr = uregex_open(zPattern, -1, 0, 0, &status);
+
+    if( U_SUCCESS(status) ){
+      sqlite3_set_auxdata(p, 0, pExpr, icuRegexpDelete);
+      pExpr = sqlite3_get_auxdata(p, 0);
+    }
+    if( !pExpr ){
+      icuFunctionError(p, "uregex_open", status);
+      return;
+    }
+  }
+
+  /* Configure the text that the regular expression operates on. */
+  uregex_setText(pExpr, zString, -1, &status);
+  if( !U_SUCCESS(status) ){
+    icuFunctionError(p, "uregex_setText", status);
+    return;
+  }
+
+  /* Attempt the match */
+  res = uregex_matches(pExpr, 0, &status);
+  if( !U_SUCCESS(status) ){
+    icuFunctionError(p, "uregex_matches", status);
+    return;
+  }
+
+  /* Set the text that the regular expression operates on to a NULL
+  ** pointer. This is not really necessary, but it is tidier than 
+  ** leaving the regular expression object configured with an invalid
+  ** pointer after this function returns.
+  */
+  uregex_setText(pExpr, 0, 0, &status);
+
+  /* Return 1 or 0. */
+  sqlite3_result_int(p, res ? 1 : 0);
+}
+
+/*
+** Implementations of scalar functions for case mapping - upper() and 
+** lower(). Function upper() converts its input to upper-case (ABC).
+** Function lower() converts to lower-case (abc).
+**
+** ICU provides two types of case mapping, "general" case mapping and
+** "language specific". Refer to ICU documentation for the differences
+** between the two.
+**
+** To utilise "general" case mapping, the upper() or lower() scalar 
+** functions are invoked with one argument:
+**
+**     upper('ABC') -> 'abc'
+**     lower('abc') -> 'ABC'
+**
+** To access ICU "language specific" case mapping, upper() or lower()
+** should be invoked with two arguments. The second argument is the name
+** of the locale to use. Passing an empty string ("") or SQL NULL value
+** as the second argument is the same as invoking the 1 argument version
+** of upper() or lower().
+**
+**     lower('I', 'en_us') -> 'i'
+**     lower('I', 'tr_tr') -> '\u131' (small dotless i)
+**
+** http://www.icu-project.org/userguide/posix.html#case_mappings
+*/
+static void icuCaseFunc16(sqlite3_context *p, int nArg, sqlite3_value **apArg){
+  const UChar *zInput;            /* Pointer to input string */
+  UChar *zOutput = 0;             /* Pointer to output buffer */
+  int nInput;                     /* Size of utf-16 input string in bytes */
+  int nOut;                       /* Size of output buffer in bytes */
+  int cnt;
+  int bToUpper;                   /* True for toupper(), false for tolower() */
+  UErrorCode status;
+  const char *zLocale = 0;
+
+  assert(nArg==1 || nArg==2);
+  bToUpper = (sqlite3_user_data(p)!=0);
+  if( nArg==2 ){
+    zLocale = (const char *)sqlite3_value_text(apArg[1]);
+  }
+
+  zInput = sqlite3_value_text16(apArg[0]);
+  if( !zInput ){
+    return;
+  }
+  nOut = nInput = sqlite3_value_bytes16(apArg[0]);
+  if( nOut==0 ){
+    sqlite3_result_text16(p, "", 0, SQLITE_STATIC);
+    return;
+  }
+
+  for(cnt=0; cnt<2; cnt++){
+    UChar *zNew = sqlite3_realloc(zOutput, nOut);
+    if( zNew==0 ){
+      sqlite3_free(zOutput);
+      sqlite3_result_error_nomem(p);
+      return;
+    }
+    zOutput = zNew;
+    status = U_ZERO_ERROR;
+    if( bToUpper ){
+      nOut = 2*u_strToUpper(zOutput,nOut/2,zInput,nInput/2,zLocale,&status);
+    }else{
+      nOut = 2*u_strToLower(zOutput,nOut/2,zInput,nInput/2,zLocale,&status);
+    }
+
+    if( U_SUCCESS(status) ){
+      sqlite3_result_text16(p, zOutput, nOut, xFree);
+    }else if( status==U_BUFFER_OVERFLOW_ERROR ){
+      assert( cnt==0 );
+      continue;
+    }else{
+      icuFunctionError(p, bToUpper ? "u_strToUpper" : "u_strToLower", status);
+    }
+    return;
+  }
+  assert( 0 );     /* Unreachable */
+}
+
+#endif /* !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_ICU) */
+
+/*
+** Collation sequence destructor function. The pCtx argument points to
+** a UCollator structure previously allocated using ucol_open().
+*/
+static void icuCollationDel(void *pCtx){
+  UCollator *p = (UCollator *)pCtx;
+  ucol_close(p);
+}
+
+/*
+** Collation sequence comparison function. The pCtx argument points to
+** a UCollator structure previously allocated using ucol_open().
+*/
+static int icuCollationColl(
+  void *pCtx,
+  int nLeft,
+  const void *zLeft,
+  int nRight,
+  const void *zRight
+){
+  UCollationResult res;
+  UCollator *p = (UCollator *)pCtx;
+  res = ucol_strcoll(p, (UChar *)zLeft, nLeft/2, (UChar *)zRight, nRight/2);
+  switch( res ){
+    case UCOL_LESS:    return -1;
+    case UCOL_GREATER: return +1;
+    case UCOL_EQUAL:   return 0;
+  }
+  assert(!"Unexpected return value from ucol_strcoll()");
+  return 0;
+}
+
+/*
+** Implementation of the scalar function icu_load_collation().
+**
+** This scalar function is used to add ICU collation based collation 
+** types to an SQLite database connection. It is intended to be called
+** as follows:
+**
+**     SELECT icu_load_collation(<locale>, <collation-name>);
+**
+** Where <locale> is a string containing an ICU locale identifier (i.e.
+** "en_AU", "tr_TR" etc.) and <collation-name> is the name of the
+** collation sequence to create.
+*/
+static void icuLoadCollation(
+  sqlite3_context *p, 
+  int nArg, 
+  sqlite3_value **apArg
+){
+  sqlite3 *db = (sqlite3 *)sqlite3_user_data(p);
+  UErrorCode status = U_ZERO_ERROR;
+  const char *zLocale;      /* Locale identifier - (eg. "jp_JP") */
+  const char *zName;        /* SQL Collation sequence name (eg. "japanese") */
+  UCollator *pUCollator;    /* ICU library collation object */
+  int rc;                   /* Return code from sqlite3_create_collation_x() */
+
+  assert(nArg==2 || nArg==3);
+  (void)nArg; /* Unused parameter */
+  zLocale = (const char *)sqlite3_value_text(apArg[0]);
+  zName = (const char *)sqlite3_value_text(apArg[1]);
+
+  if( !zLocale || !zName ){
+    return;
+  }
+
+  pUCollator = ucol_open(zLocale, &status);
+  if( !U_SUCCESS(status) ){
+    icuFunctionError(p, "ucol_open", status);
+    return;
+  }
+  assert(p);
+  if(nArg==3){
+    const char *zOption = (const char*)sqlite3_value_text(apArg[2]);
+    static const struct {
+       const char *zName;
+       UColAttributeValue val;
+    } aStrength[] = {
+      {  "PRIMARY",      UCOL_PRIMARY           },
+      {  "SECONDARY",    UCOL_SECONDARY         },
+      {  "TERTIARY",     UCOL_TERTIARY          },
+      {  "DEFAULT",      UCOL_DEFAULT_STRENGTH  },
+      {  "QUARTERNARY",  UCOL_QUATERNARY        },
+      {  "IDENTICAL",    UCOL_IDENTICAL         },
+    };
+    unsigned int i;
+    for(i=0; i<sizeof(aStrength)/sizeof(aStrength[0]); i++){
+      if( sqlite3_stricmp(zOption,aStrength[i].zName)==0 ){
+        ucol_setStrength(pUCollator, aStrength[i].val);
+        break;
+      }
+    }
+    if( i>=sizeof(aStrength)/sizeof(aStrength[0]) ){
+      sqlite3_str *pStr = sqlite3_str_new(sqlite3_context_db_handle(p));
+      sqlite3_str_appendf(pStr,
+         "unknown collation strength \"%s\" - should be one of:",
+         zOption);
+      for(i=0; i<sizeof(aStrength)/sizeof(aStrength[0]); i++){
+         sqlite3_str_appendf(pStr, " %s", aStrength[i].zName);
+      }
+      sqlite3_result_error(p, sqlite3_str_value(pStr), -1);
+      sqlite3_free(sqlite3_str_finish(pStr));
+      return;
+    }
+  }
+  rc = sqlite3_create_collation_v2(db, zName, SQLITE_UTF16, (void *)pUCollator, 
+      icuCollationColl, icuCollationDel
+  );
+  if( rc!=SQLITE_OK ){
+    ucol_close(pUCollator);
+    sqlite3_result_error(p, "Error registering collation function", -1);
+  }
+}
+
+/*
+** Register the ICU extension functions with database db.
+*/
+int sqlite3IcuInit(sqlite3 *db){
+# define SQLITEICU_EXTRAFLAGS (SQLITE_DETERMINISTIC|SQLITE_INNOCUOUS)
+  static const struct IcuScalar {
+    const char *zName;                        /* Function name */
+    unsigned char nArg;                       /* Number of arguments */
+    unsigned int enc;                         /* Optimal text encoding */
+    unsigned char iContext;                   /* sqlite3_user_data() context */
+    void (*xFunc)(sqlite3_context*,int,sqlite3_value**);
+  } scalars[] = {
+    {"icu_load_collation",2,SQLITE_UTF8|SQLITE_DIRECTONLY,1, icuLoadCollation},
+    {"icu_load_collation",3,SQLITE_UTF8|SQLITE_DIRECTONLY,1, icuLoadCollation},
+#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_ICU)
+    {"regexp", 2, SQLITE_ANY|SQLITEICU_EXTRAFLAGS,         0, icuRegexpFunc},
+    {"lower",  1, SQLITE_UTF16|SQLITEICU_EXTRAFLAGS,       0, icuCaseFunc16},
+    {"lower",  2, SQLITE_UTF16|SQLITEICU_EXTRAFLAGS,       0, icuCaseFunc16},
+    {"upper",  1, SQLITE_UTF16|SQLITEICU_EXTRAFLAGS,       1, icuCaseFunc16},
+    {"upper",  2, SQLITE_UTF16|SQLITEICU_EXTRAFLAGS,       1, icuCaseFunc16},
+    {"lower",  1, SQLITE_UTF8|SQLITEICU_EXTRAFLAGS,        0, icuCaseFunc16},
+    {"lower",  2, SQLITE_UTF8|SQLITEICU_EXTRAFLAGS,        0, icuCaseFunc16},
+    {"upper",  1, SQLITE_UTF8|SQLITEICU_EXTRAFLAGS,        1, icuCaseFunc16},
+    {"upper",  2, SQLITE_UTF8|SQLITEICU_EXTRAFLAGS,        1, icuCaseFunc16},
+    {"like",   2, SQLITE_UTF8|SQLITEICU_EXTRAFLAGS,        0, icuLikeFunc},
+    {"like",   3, SQLITE_UTF8|SQLITEICU_EXTRAFLAGS,        0, icuLikeFunc},
+#endif /* !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_ICU) */
+  };
+  int rc = SQLITE_OK;
+  int i;
+  
+  for(i=0; rc==SQLITE_OK && i<(int)(sizeof(scalars)/sizeof(scalars[0])); i++){
+    const struct IcuScalar *p = &scalars[i];
+    rc = sqlite3_create_function(
+        db, p->zName, p->nArg, p->enc, 
+        p->iContext ? (void*)db : (void*)0,
+        p->xFunc, 0, 0
+    );
+  }
+
+  return rc;
+}
+
+#ifndef SQLITE_CORE
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_icu_init(
+  sqlite3 *db, 
+  char **pzErrMsg,
+  const sqlite3_api_routines *pApi
+){
+  SQLITE_EXTENSION_INIT2(pApi)
+  return sqlite3IcuInit(db);
+}
+#endif
+
+#endif
diff --git a/ext/icu/sqliteicu.h b/ext/icu/sqliteicu.h
new file mode 100644
index 0000000000000000000000000000000000000000..24a4d623bdf058644971947cc2739d5c437cfd13
--- /dev/null
+++ b/ext/icu/sqliteicu.h
@@ -0,0 +1,26 @@
+/*
+** 2008 May 26
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This header file is used by programs that want to link against the
+** ICU extension.  All it does is declare the sqlite3IcuInit() interface.
+*/
+#include "sqlite3.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif  /* __cplusplus */
+
+int sqlite3IcuInit(sqlite3 *db);
+
+#ifdef __cplusplus
+}  /* extern "C" */
+#endif  /* __cplusplus */
diff --git a/ext/intck/intck1.test b/ext/intck/intck1.test
new file mode 100644
index 0000000000000000000000000000000000000000..187132f766c67e88f706ca7a2421fa59a22a0163
--- /dev/null
+++ b/ext/intck/intck1.test
@@ -0,0 +1,332 @@
+# 2008 Feb 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# The focus of this file is testing the incremental integrity check
+# (intck) extension.
+#
+
+source [file join [file dirname [info script]] intck_common.tcl]
+set testprefix intck1
+return_if_no_intck
+
+foreach {tn sql} {
+  1 "CREATE TABLE t1(a PRIMARY KEY, b)"
+  2 "CREATE TABLE t2(a PRIMARY KEY, b) WITHOUT   ROWID  "
+  3 "CREATE TABLE t3(a PRIMARY KEY, b) WITHOUT   rowID;"
+  4 "CREATE TABLE t4(a PRIMARY KEY, ROWID)"
+  5 {CREATE TABLE t5(a PRIMARY KEY, ROWID) WITHOUT ROWID
+    }
+} {
+  do_test 1.1.$tn {
+    db eval $sql
+    set {} {}
+  } {}
+}
+
+set space " \n\v\t\r\f"
+
+do_execsql_test 1.2 {
+  SELECT name, (rtrim(sql, $space) LIKE '%rowid') 
+  FROM sqlite_schema WHERE type='table'
+  ORDER BY 1
+} {
+  t1 0
+  t2 1
+  t3 1
+  t4 0
+  t5 1
+}
+
+do_execsql_test 1.3 {
+  CREATE TABLE x1(a COLLATE nocase, b INTEGER, c BLOB);
+  INSERT INTO x1 VALUES('lEtTeRs', 1234, 1234);
+}
+do_execsql_test 1.3.1 {
+  WITH wrapper(c1, c2, c3) AS (
+    SELECT a, b, c FROM x1
+  )
+  SELECT * FROM wrapper WHERE c1='letters';
+} {lEtTeRs 1234 1234}
+do_execsql_test 1.3.2 {
+  WITH wrapper(c1, c2, c3) AS (
+    SELECT a, b, c FROM x1
+  )
+  SELECT * FROM wrapper WHERE c2='1234';
+} {lEtTeRs 1234 1234}
+do_execsql_test 1.3.2 {
+  WITH wrapper(c1, c2, c3) AS (
+    SELECT a, b, c FROM x1
+  )
+  SELECT * FROM wrapper WHERE c3='1234';
+} {}
+
+do_execsql_test 1.4 {
+  CREATE TABLE z1(a, b);
+  CREATE INDEX z1ab ON z1(a+b COLLATE nocase);
+}
+do_execsql_test 1.4.1 {
+  SELECT * FROM z1 INDEXED BY z1ab 
+}
+
+do_catchsql_test 1.5.1 {
+  CREATE INDEX z1b ON z1(b ASC NULLS LAST);
+} {1 {unsupported use of NULLS LAST}}
+do_catchsql_test 1.5.2 {
+  CREATE INDEX z1b ON z1(b DESC NULLS LAST);
+} {1 {unsupported use of NULLS LAST}}
+do_catchsql_test 1.5.3 {
+  CREATE INDEX z1b ON z1(b ASC NULLS FIRST);
+} {1 {unsupported use of NULLS FIRST}}
+do_catchsql_test 1.5.4 {
+  CREATE INDEX z1b ON z1(b DESC NULLS FIRST);
+} {1 {unsupported use of NULLS FIRST}}
+
+
+reset_db
+do_execsql_test 1.6.1 {
+  CREATE TABLE t1(i INTEGER PRIMARY KEY, b, c);
+  CREATE INDEX i1 ON t1(b);
+  ANALYZE;
+  INSERT INTO sqlite_stat1 VALUES('t1', 'i1', '10000 10000');
+  ANALYZE sqlite_schema;
+} {}
+do_eqp_test 1.6.2 {
+  SELECT 1 FROM t1 INDEXED BY i1 WHERE (b, i) IS (?, ?);
+} {SEARCH}
+
+
+
+#-------------------------------------------------------------------------
+reset_db
+
+do_test 2.0 {
+  set ic [sqlite3_intck db main]
+  $ic close
+} {}
+
+do_execsql_test 2.1 {
+  CREATE TABLE t1(a, b);
+  INSERT INTO t1 VALUES(1, 2);
+  INSERT INTO t1 VALUES(3, 4);
+
+  CREATE INDEX i1 ON t1(a COLLATE nocase);
+  CREATE INDEX i2 ON t1(b, a);
+  CREATE INDEX i3 ON t1(b + a COLLATE nocase) WHERE a!=1;
+}
+
+do_intck_test 2.2 {
+}
+
+# Delete a row from each of the i1 and i2 indexes using the imposter
+# table interface.
+#
+do_test 2.3 {
+  db eval {SELECT name, rootpage FROM sqlite_schema} {
+    set R($name) $rootpage
+  }
+  sqlite3_test_control SQLITE_TESTCTRL_IMPOSTER db main 1 $R(i1)
+  db eval { CREATE TABLE imp1(a PRIMARY KEY, rowid) WITHOUT ROWID; }
+  sqlite3_test_control SQLITE_TESTCTRL_IMPOSTER db main 1 $R(i2)
+  db eval { CREATE TABLE imp2(b, a, rowid, PRIMARY KEY(b, a)) WITHOUT ROWID; }
+  sqlite3_test_control SQLITE_TESTCTRL_IMPOSTER db main 0 0
+
+  db eval {
+    DELETE FROM imp1 WHERE rowid=1;
+    DELETE FROM imp2 WHERE rowid=2;
+  }
+
+  db close
+  sqlite3 db test.db
+} {}
+
+do_intck_test 2.4 {
+  {entry (1,1) missing from index i1} 
+  {entry (4,3,2) missing from index i2}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 3.0 {
+  CREATE TABLE x1(a, b, c, PRIMARY KEY(c, b)) WITHOUT ROWID;
+  CREATE INDEX x1a ON x1(a COLLATE nocase);
+
+  INSERT INTO x1 VALUES(1, 2, 'three');
+  INSERT INTO x1 VALUES(4, 5, 'six');
+  INSERT INTO x1 VALUES(7, 8, 'nine');
+}
+
+do_intck_test 3.1 { }
+
+do_test 3.2 {
+  db eval {SELECT name, rootpage FROM sqlite_schema} {
+    set R($name) $rootpage
+  }
+  sqlite3_test_control SQLITE_TESTCTRL_IMPOSTER db main 1 $R(x1a)
+  db eval { CREATE TABLE imp1(c, b, a, PRIMARY KEY(c, b)) WITHOUT ROWID }
+  sqlite3_test_control SQLITE_TESTCTRL_IMPOSTER db main 0 0
+
+  db eval {
+    DELETE FROM imp1 WHERE a=5;
+  }
+  execsql_pp {
+  }
+
+  db close
+  sqlite3 db test.db
+} {}
+
+do_intck_test 3.3 { 
+  {entry (4,'six',5) missing from index x1a}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 4.0 {
+  CREATE TABLE www(x, y, z);
+  CREATE INDEX w1 ON www( (x+1), z );
+  INSERT INTO www VALUES(1, 1, 1), (2, 2, 2);
+}
+
+do_intck_test 4.1 { }
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 5.0 {
+  CREATE TABLE t1(a, b);             
+  CREATE INDEX i1 ON t1(a COLLATE NOCASE);
+  INSERT INTO t1 VALUES(1, 1);
+  INSERT INTO t1 VALUES(2, 2);
+}
+
+do_test 5.1 {
+  set ic [sqlite3_intck db nosuchdb]
+  $ic step
+} {SQLITE_ERROR}
+
+do_test 5.2 {
+  $ic close
+  set ic [sqlite3_intck db {}]
+  while {[$ic step]=="SQLITE_OK"} {}
+  set res [$ic error]
+  $ic close
+  set res
+} {SQLITE_OK {}}
+
+do_test 5.3 { test_do_intck db "main" } {}
+
+do_test 5.4 {
+  set ret {}
+  set ic [sqlite3_intck db main]
+  db eval [$ic test_sql t1] {
+    if {$error_message!=""} { lappend ret $error_message }
+  }
+  $ic close
+  set ret
+} {}
+
+do_test 5.5 {
+  set ret {}
+  set ic [sqlite3_intck db main]
+  db eval [$ic test_sql {}] {
+    if {$error_message!=""} { lappend ret $error_message }
+  }
+  $ic close
+  set ret
+} {}
+
+db cache flush
+
+do_test 5.6 {
+  set ret {}
+  set ic [sqlite3_intck db main]
+  $ic step
+  db eval [$ic test_sql {}] {
+    if {$error_message!=""} { lappend ret $error_message }
+  }
+  $ic close
+  set ret
+} {}
+
+#-------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 6.0 {
+  CREATE TABLE t1(x, y, PRIMARY KEY(x)) WITHOUT ROWID;
+  CREATE INDEX i1 ON t1(y, x);
+  INSERT INTO t1 VALUES(X'0000', X'1111');
+}
+
+do_intck_test 6.1 {}
+
+do_execsql_test 6.2.1 {
+  PRAGMA writable_schema = 1;
+  UPDATE sqlite_schema SET sql = 'CREATE INDEX i1' WHERE name='i1';
+} {}
+do_intck_test 6.2.2 {}
+
+do_execsql_test 6.3.1 {
+  UPDATE sqlite_schema SET sql = 'CREATE INDEX i1(y' WHERE name='i1';
+} {}
+do_intck_test 6.3.2 {}
+
+do_execsql_test 6.4.1 {
+  UPDATE sqlite_schema 
+  SET sql = 'CREATE INDEX i1(y) hello world' 
+  WHERE name='i1';
+} {}
+do_intck_test 6.4.2 {}
+
+do_execsql_test 6.5.1 {
+  UPDATE sqlite_schema 
+  SET sql = 'CREATE INDEX i1(y, x) WHERE 1     ' 
+  WHERE name='i1';
+} {}
+do_intck_test 6.5.2 {}
+
+do_execsql_test 6.6.1 {
+  UPDATE sqlite_schema 
+  SET sql = 'CREATE INDEX i1(  ,  ) WHERE 1     ' 
+  WHERE name='i1';
+} {}
+
+do_test 6.7.2 {
+  set ic [sqlite3_intck db main]
+  $ic step
+} {SQLITE_ERROR}
+do_test 6.5.3 {
+  $ic error
+} {SQLITE_ERROR {near "AS": syntax error}}
+$ic close
+
+do_execsql_test 6.6.1 {
+  UPDATE sqlite_schema 
+  SET sql = 'CREATE INDEX i1([y'
+  WHERE name='i1';
+} {}
+do_intck_test 6.6.2 {}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 7.0 {
+  CREATE TABLE x1("1", "22", "3333", four);
+  CREATE INDEX i1 ON x1(  "1"  , "22", NULL);
+  INSERT INTO x1 VALUES(1, 22, 3333, NULL);
+  INSERT INTO x1 VALUES(1, 22, 3333, NULL);
+}
+do_execsql_test 7.1 " CREATE INDEX i2 ON x1(  \"1\"\r\n\t ) "
+do_execsql_test 7.2 { CREATE INDEX i3 ON x1( "22" || 'abc''def' || `1` ) }
+do_execsql_test 7.3 { CREATE INDEX i4 ON x1( [22] + [1] ) }
+do_execsql_test 7.4 { CREATE INDEX i5 ON x1( four||'hello' ) }
+
+do_intck_test 7.5 {}
+
+
+finish_test
diff --git a/ext/intck/intck2.test b/ext/intck/intck2.test
new file mode 100644
index 0000000000000000000000000000000000000000..23b241b5a92058b056b68138f5ea964d2c1a667b
--- /dev/null
+++ b/ext/intck/intck2.test
@@ -0,0 +1,177 @@
+# 2024 Feb 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# The focus of this file is testing the incremental integrity check
+# (intck) extension.
+#
+
+source [file join [file dirname [info script]] intck_common.tcl]
+set testprefix intck2
+return_if_no_intck
+
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b TEXT);
+  INSERT INTO t1 VALUES(1, 'one');
+  INSERT INTO t1 VALUES(2, 'two');
+  INSERT INTO t1 VALUES(3, 'three');
+  CREATE INDEX i1 ON t1(b);
+}
+
+proc imposter_edit {obj create sql} {
+  sqlite3 xdb test.db
+  set pgno [xdb one {SELECT rootpage FROM sqlite_schema WHERE name=$obj}]
+
+  sqlite3_test_control SQLITE_TESTCTRL_IMPOSTER xdb main 1 $pgno
+  xdb eval $create
+  sqlite3_test_control SQLITE_TESTCTRL_IMPOSTER xdb main 0 0
+  xdb eval $sql
+  xdb close
+}
+
+imposter_edit i1 {
+  CREATE TABLE imp(b, a, PRIMARY KEY(b)) WITHOUT ROWID;
+} {
+  DELETE FROM imp WHERE b='two';
+  INSERT INTO imp(b, a) VALUES('four', 4);
+}
+
+do_intck_test 1.1 {
+  {surplus entry ('four',4) in index i1}
+  {entry ('two',2) missing from index i1}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 2.0 {
+  CREATE TABLE x1(a, b, "c d");
+  CREATE INDEX x1a ON x1(a COLLATE nocase DESC , b ASC);
+  CREATE INDEX x1b ON x1( a || b || ' "''" ' COLLATE binary ASC );
+  CREATE INDEX x1c ON x1( format('%s', a)ASC, format('%d', "c d" ) );
+  INSERT INTO x1 VALUES('one', 2, 3);
+  INSERT INTO x1 VALUES('One', 4, 5);
+  INSERT INTO x1 VALUES('ONE', 6, 7);
+  INSERT INTO x1 VALUES(NULL, NULL, NULL);
+}
+
+do_intck_test 2.1 {}
+
+imposter_edit x1 {
+  CREATE TABLE imp(a, b, c);
+} {
+  DELETE FROM imp WHERE c=7;
+}
+do_intck_test 2.2 {
+  {surplus entry ('ONE',6,3) in index x1a}
+  {surplus entry ('ONE6 "''" ',3) in index x1b}
+  {surplus entry ('ONE','7',3) in index x1c}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 3.0 {
+  CREATE TABLE x1(a, b, c);
+  CREATE INDEX x1all ON x1(a DESC, b ASC, c DESC);
+  INSERT INTO x1 VALUES(2, 1, 2);
+  INSERT INTO x1 VALUES(2, 1, 1);
+  INSERT INTO x1 VALUES(2, 2, 2);
+  INSERT INTO x1 VALUES(2, 2, 1);
+  INSERT INTO x1 VALUES(1, 1, 2);
+  INSERT INTO x1 VALUES(1, 1, 1);
+  INSERT INTO x1 VALUES(1, 2, 2);
+  INSERT INTO x1 VALUES(1, 2, 1);
+}
+
+do_intck_test 3.1 {
+}
+
+imposter_edit x1 {
+  CREATE TABLE imp(a, b, c);
+} {
+  DELETE FROM imp WHERE 1;
+}
+
+db close
+sqlite3 db test.db
+
+do_intck_test 3.2 {
+  {surplus entry (2,1,2,1) in index x1all} 
+  {surplus entry (2,1,1,2) in index x1all}
+  {surplus entry (2,2,2,3) in index x1all} 
+  {surplus entry (2,2,1,4) in index x1all}
+  {surplus entry (1,1,2,5) in index x1all} 
+  {surplus entry (1,1,1,6) in index x1all} 
+  {surplus entry (1,2,2,7) in index x1all}
+  {surplus entry (1,2,1,8) in index x1all}
+}
+
+do_execsql_test 3.3 {
+  DELETE FROM x1;
+  INSERT INTO x1 VALUES(NULL, NULL, NULL);
+  INSERT INTO x1 VALUES(NULL, NULL, NULL);
+  INSERT INTO x1 VALUES(NULL, NULL, NULL);
+  INSERT INTO x1 VALUES(NULL, NULL, NULL);
+}
+
+do_intck_test 3.4 {
+}
+
+imposter_edit x1 {
+  CREATE TABLE imp(a, b, c);
+} {
+  DELETE FROM imp WHERE 1;
+  INSERT INTO imp(rowid) VALUES(-123);
+  INSERT INTO imp(rowid) VALUES(456);
+}
+
+db close
+sqlite3 db test.db
+
+do_intck_test 3.5 {
+  {entry (NULL,NULL,NULL,-123) missing from index x1all}
+  {entry (NULL,NULL,NULL,456) missing from index x1all}
+  {surplus entry (NULL,NULL,NULL,1) in index x1all}
+  {surplus entry (NULL,NULL,NULL,2) in index x1all}
+  {surplus entry (NULL,NULL,NULL,3) in index x1all}
+  {surplus entry (NULL,NULL,NULL,4) in index x1all}
+}
+
+reset_db
+
+do_execsql_test 3.6 {
+  CREATE TABLE w1(a PRIMARY KEY, b, c);
+  INSERT INTO w1 VALUES(1.0, NULL, NULL);
+  INSERT INTO w1 VALUES(33.0, NULL, NULL);
+  INSERT INTO w1 VALUES(100.0, NULL, NULL);
+  CREATE INDEX w1bc ON w1(b, c);
+}
+
+do_intck_test 3.7 {
+}
+
+imposter_edit w1 {
+  CREATE TABLE imp(a, b, c);
+} {
+  DELETE FROM imp WHERE a=33;
+  INSERT INTO imp(a) VALUES(1234.5);
+  INSERT INTO imp(a) VALUES(-1234.5);
+}
+
+do_intck_test 3.8 {
+  {surplus entry (33.0,2) in index sqlite_autoindex_w1_1}
+  {entry (1234.5,4) missing from index sqlite_autoindex_w1_1} 
+  {entry (NULL,NULL,4) missing from index w1bc} 
+  {entry (-1234.5,5) missing from index sqlite_autoindex_w1_1} 
+  {entry (NULL,NULL,5) missing from index w1bc} 
+  {surplus entry (NULL,NULL,2) in index w1bc}
+}
+
+finish_test
diff --git a/ext/intck/intck_common.tcl b/ext/intck/intck_common.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..1e216b59f3e23bb96aff3a99a4602fd00fcdbb7d
--- /dev/null
+++ b/ext/intck/intck_common.tcl
@@ -0,0 +1,66 @@
+# 2024 Feb 18
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+}
+source $testdir/tester.tcl
+
+ifcapable !vtab||!pragma {
+  proc return_if_no_intck {} {
+    finish_test
+    return -code return
+  }
+  return
+} else {
+  proc return_if_no_intck {} {}
+}
+
+proc do_intck {db {bSuspend 0}} {
+  set ic [sqlite3_intck $db main]
+
+  set ret [list]
+  while {"SQLITE_OK"==[$ic step]} {
+    set msg [$ic message]
+    if {$msg!=""} {
+      lappend ret $msg
+    }
+    if {$bSuspend} { 
+      $ic unlock 
+      #puts "SQL: [$ic test_sql {}]"
+      #execsql_pp "EXPLAIN query plan [$ic test_sql {}]"
+      #explain_i [$ic test_sql {}]
+    }
+  }
+
+  set err [$ic error]
+  if {[lindex $err 0]!="SQLITE_OK"} {
+    error $err
+  }
+  $ic close
+
+  return $ret
+}
+
+proc intck_sql {db tbl} {
+  set ic [sqlite3_intck $db main]
+  set sql [$ic test_sql $tbl]
+  $ic close
+  return $sql
+}
+
+proc do_intck_test {tn expect} {
+  uplevel [list do_test $tn.a [list do_intck db] [list {*}$expect]]
+  uplevel [list do_test $tn.b [list do_intck db 1] [list {*}$expect]]
+}
+
+
diff --git a/ext/intck/intckbusy.test b/ext/intck/intckbusy.test
new file mode 100644
index 0000000000000000000000000000000000000000..7c65b686bb79328d95f399829ce8d3cdf6b34f1b
--- /dev/null
+++ b/ext/intck/intckbusy.test
@@ -0,0 +1,49 @@
+# 2024 February 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname [info script]] intck_common.tcl]
+set testprefix intckbusy
+return_if_no_intck
+
+
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+  INSERT INTO t1 VALUES(1, 2, 3);
+  INSERT INTO t1 VALUES(2, 'two', 'three');
+  INSERT INTO t1 VALUES(3, NULL, NULL);
+  CREATE INDEX i1 ON t1(b, c);
+}
+
+sqlite3 db2 test.db
+
+do_execsql_test -db db2 1.1 {
+  BEGIN EXCLUSIVE;
+    INSERT INTO t1 VALUES(4, 5, 6);
+}
+
+do_test 1.2 {
+  set ic [sqlite3_intck db main]
+  $ic step
+} {SQLITE_BUSY}
+do_test 1.3 {
+  $ic unlock
+} {SQLITE_BUSY}
+do_test 1.4 {
+  $ic error
+} {SQLITE_BUSY {database is locked}}
+do_test 1.4 {
+  $ic close
+} {}
+
+finish_test
+
diff --git a/ext/intck/intckcorrupt.test b/ext/intck/intckcorrupt.test
new file mode 100644
index 0000000000000000000000000000000000000000..eee63b32f0eb1d1f0a1c195abef972edd1b16dfd
--- /dev/null
+++ b/ext/intck/intckcorrupt.test
@@ -0,0 +1,236 @@
+# 2024 Feb 21
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# The focus of this file is testing the intck extensions response
+# to corruption at the b-tree level.
+#
+
+source [file join [file dirname [info script]] intck_common.tcl]
+set testprefix intckcorrupt
+return_if_no_intck
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 1.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 356352 pagesize 4096 filename crash-acaae0347204ae.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 d0 00 00 00   .....@  ........
+|     32: 40 00 ea 00 00 00 00 00 00 40 00 00 00 40 00 00   @........@...@..
+|     96: 00 00 00 00 0d 00 00 00 04 0e 9c 00 0f ad 0f 4f   ...............O
+|    112: 0e fc 0e 9c 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   3728: 00 00 00 00 00 00 00 00 00 00 00 00 5e 04 07 17   ............^...
+|   3744: 1f 1f 01 81 0b 74 61 62 6c 65 74 31 5f 70 61 72   .....tablet1_par
+|   3760: 65 6e 74 74 31 5f 70 61 72 65 6e 74 04 43 52 45   entt1_parent.CRE
+|   3776: 41 54 45 20 54 41 42 4c 45 20 22 74 31 5f 70 61   ATE TABLE .t1_pa
+|   3792: 72 65 6e 74 22 28 6e 6f 64 65 6e 6f 20 49 4e 54   rent.(nodeno INT
+|   3808: 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59   EGER PRIMARY KEY
+|   3824: 2c 70 61 72 65 6e 74 6e 6f 64 65 29 51 03 06 17   ,parentnode)Q...
+|   3840: 1b 1b 01 7b 74 61 62 6c 65 74 31 5f 6e 6f 64 65   ....tablet1_node
+|   3856: 74 31 5f 6e 6f 64 65 03 43 52 45 41 54 45 20 54   t1_node.CREATE T
+|   3872: 41 42 4c 45 20 22 74 31 5f 6e 6f 64 65 22 28 6e   ABLE .t1_node.(n
+|   3888: 6f 64 65 6e 6f 20 49 4e 54 45 47 45 52 20 50 52   odeno INTEGER PR
+|   3904: 49 4d 41 52 59 20 4b 45 59 2c 64 61 74 61 29 5c   IMARY KEY,data).
+|   3920: 02 07 17 1d 1d 01 81 0b 74 61 62 6c 65 74 31 5f   ........tablet1_
+|   3936: 72 6f 77 69 64 74 31 5f 72 6f 77 69 64 02 43 52   rowidt1_rowid.CR
+|   3952: 45 41 54 45 20 54 41 42 4c 45 20 22 74 31 5f 72   EATE TABLE .t1_r
+|   3968: 6f 77 69 64 22 28 72 6f 77 69 64 20 49 4e 54 45   owid.(rowid INTE
+|   3984: 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c   GER PRIMARY KEY,
+|   4000: 6e 6f 64 65 6e 6f 2c 61 30 2c 61 31 29 51 01 07   nodeno,a0,a1)Q..
+|   4016: 17 11 11 08 81 0f 74 61 62 6c 65 74 31 74 31 43   ......tablet1t1C
+|   4032: 52 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41   REATE VIRTUAL TA
+|   4048: 42 4c 45 20 74 31 20 55 53 49 4e 47 20 72 74 72   BLE t1 USING rtr
+|   4064: 65 65 28 69 64 2c 78 30 20 50 52 49 4d 41 52 59   ee(id,x0 PRIMARY
+|   4080: 20 4b 45 59 2c 70 61 72 65 6e 74 6e 6f 64 65 29    KEY,parentnode)
+| page 2 offset 4096
+|      0: 51 03 06 17 1b 1b 01 7b 74 61 62 6c 65 74 31 5f   Q.......tablet1_
+|     16: 6e 6f 64 65 74 31 5f 6e 6f 64 65 03 43 52 45 41   nodet1_node.CREA
+|     32: 54 45 20 54 41 42 4c 45 20 22 74 31 5f 6e 6f 64   TE TABLE .t1_nod
+|     48: 65 22 28 6e 6f 64 65 6e 6f 20 49 4e 54 45 47 45   e.(nodeno INTEGE
+|     64: 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 64 61   R PRIMARY KEY,da
+|     80: 74 61 29 5c 02 07 17 1d 1d 01 81 0b 74 61 62 6c   ta).........tabl
+|     96: 65 74 31 5f 72 6f 77 69 64 74 31 5f 72 6f 77 69   et1_rowidt1_rowi
+|    112: 64 02 43 52 45 41 54 45 20 54 41 42 4c 45 00 00   d.CREATE TABLE..
+|    128: 01 0a 02 00 00 00 01 0e 0d 00 00 00 00 24 0e 0d   .............$..
+|    144: 0c 1a 06 85 50 46 60 27 70 08 00 00 00 00 00 00   ....PF`'p.......
+|   3824: 00 00 00 00 00 00 00 0d 0e 05 00 09 1d 00 74 6f   ..............to
+|   3840: 79 20 68 61 6c 66 10 0d 05 00 09 23 00 62 6f 74   y half.....#.bot
+|   3856: 74 6f 6d 20 68 61 6c 66 0f 0c 05 00 09 21 00 72   tom half.....!.r
+|   3872: 69 67 68 74 20 68 61 6c 66 0e 0b 05 00 09 1f 00   ight half.......
+|   3888: 6c 65 66 74 20 43 15 f6 e6 f6 46 50 34 35 24 54   left C....FP45$T
+|   3904: 15 44 52 05 44 14 24 c4 52 02 27 43 15 f6 e6 f6   .DR.D.$.R.'C....
+|   3920: 46 52 22 8e 6f 64 65 6e 6f 20 49 4e 54 45 47 45   FR..odeno INTEGE
+|   3936: 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 64 61   R PRIMARY KEY,da
+|   3952: 74 61 29 5c 02 07 17 1d 1d 01 81 0b 74 61 62 6c   ta).........tabl
+|   3968: 65 74 31 5f 72 6f 74 74 6f 6d 20 65 64 67 65 0f   et1_rottom edge.
+|   3984: 07 05 00 09 21 00 72 69 67 68 74 20 65 64 67 65   ....!.right edge
+|   4000: 0e 06 05 00 09 1f 00 6c 65 66 74 20 65 64 67 65   .......left edge
+|   4016: 0b 05 05 00 09 19 00 63 65 6e 74 65 72 17 04 05   .......center...
+|   4032: 00 09 31 00 75 70 70 65 72 2d 72 69 67 68 74 20   ..1.upper-right 
+|   4048: 63 6f 72 6e 65 72 17 03 05 00 09 31 00 6c 6f 77   corner.....1.low
+|   4064: 65 72 2d 72 69 67 68 74 20 63 6f 72 6e 65 72 16   er-right corner.
+|   4080: 02 05 00 09 2f 00 75 70 70 65 72 2d 6c 65 66 74   ..../.upper-left
+| page 3 offset 8192
+|      0: 20 63 6f 72 6e 65 72 16 01 05 00 09 2f 01 8c 6f    corner...../..o
+|     16: 77 65 72 2d 6c 53 51 4c 69 74 65 20 66 6f 72 6d   wer-lSQLite form
+|     32: 61 74 20 33 00 10 00 01 01 00 40 20 20 00 00 00   at 3......@  ...
+|     48: 00 00 00 00 2f 00 00 0d eb 13 00 00 00 03 00 00   ..../...........
+|     64: 00 04 00 00 00 00 00 00 00 06 00 00 00 01 00 00   ................
+|     80: 00 00 00 00 00 01 00 00 00 00 00 00 00 00 00 00   ................
+| page 6 offset 20480
+|    128: 00 00 00 00 00 00 00 00 97 3d 04 ae 7c 01 00 00   .........=..|...
+|    624: 00 00 00 00 00 00 21 97 3d 04 ae 7c 01 00 00 00   ......!.=..|....
+|   1120: 00 00 00 00 00 20 97 3d 04 ae 7c 01 00 00 00 00   ..... .=..|.....
+|   1616: 00 00 00 00 1f 97 3d 04 ae 7c 01 00 00 00 00 00   ......=..|......
+|   2112: 00 00 00 1e 97 3d 04 ae 7c 01 00 00 00 00 00 00   .....=..|.......
+|   2608: 00 00 1d 97 d3 d0 4a e7 c0 00 00 00 00 00 00 00   ......J.........
+|   3088: 00 00 00 00 00 00 00 00 00 00 00 00 01 f3 00 00   ................
+|   3600: 23 97 3d 04 ae 7c 01 00 00 00 00 00 00 00 00 00   #.=..|..........
+|   4080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 26   ...............&
+| page 8 offset 28672
+|      0: 0d 00 00 00 01 04 30 00 04 30 00 00 00 00 00 00   ......0..0......
+|   1072: 97 4d 1e 14 00 ae 7c 00 00 00 00 00 00 00 00 00   .M....|.........
+|   1088: 00 00 00 00 00 00 01 00 00 00 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 03   ................
+| page 10 offset 36864
+|      0: 0d 00 00 00 01 04 30 00 04 30 00 00 00 00 00 00   ......0..0......
+|   1072: 9a ee c1 80 fd 78 1f ce 1b ae eb b4 00 00 00 00   .....x..........
+|   1088: 13 20 ff 20 00 70 00 00 00 60 50 00 00 00 11 e0   . . .p...`P.....
+|   1104: 00 00 00 70 00 00 00 60 50 05 35 14 c6 97 46 52   ...p...`P.5...FR
+|   1120: 06 66 f7 26 d6 17 42 03 30 01 00 00 10 10 04 02   .f.&..B.0.......
+|   1136: 02 00 00 00 00 00 00 00 00 40 00 00 00 00 00 00   .........@......
+|   1152: 00 00 00 00 00 40 00 00 00 40 00 00 00 00 00 00   .....@...@......
+|   4080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 05   ................
+| page 12 offset 45056
+|      0: 0d 00 00 00 01 04 30 00 04 30 e1 b4 30 97 4d 46   ......0..0..0.MF
+|     16: 14 00 ae 7c 00 00 00 00 00 00 00 03 00 00 43 00   ...|..........C.
+| page 47 offset 188416
+|   2512: 00 00 00 00 00 00 00 00 be 00 00 00 00 00 00 00   ................
+| page 87 offset 352256
+|   2512: 00 00 00 00 00 00 00 00 aa 00 00 00 00 00 00 00   ................
+| end crash-acaae0347204ae.db
+}]} {}
+
+do_intck_test 1.1 {
+  {corruption found while reading database schema}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 2.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 28672 pagesize 4096 filename crash-3afa1ca9e9c1bd.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 07   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 06 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 00 00 00 06 0e 88 00 0f b8 0f 6d   ...............m
+|    112: 0f 3a 0f 0b 0e d5 0e 88 01 00 00 00 00 00 00 00   .:..............
+|   3712: 00 00 00 00 00 00 00 00 4b 06 06 17 25 25 01 5b   ........K...%%.[
+|   3728: 74 61 62 6c 65 73 71 6c 69 74 65 5f 73 74 61 74   tablesqlite_stat
+|   3744: 31 73 71 6c 69 74 65 5f 73 74 61 74 31 07 43 52   1sqlite_stat1.CR
+|   3760: 45 41 54 45 20 54 41 42 4c 45 20 73 71 6c 69 74   EATE TABLE sqlit
+|   3776: 65 5f 73 74 61 74 31 28 74 62 6c 2c 69 64 78 2c   e_stat1(tbl,idx,
+|   3792: 73 74 61 74 29 34 05 06 17 13 11 01 53 69 6e 64   stat)4......Sind
+|   3808: 65 78 63 31 63 63 31 06 43 52 45 41 54 45 20 55   exc1cc1.CREATE U
+|   3824: 4e 49 51 55 45 20 49 4e 44 45 58 20 63 31 63 20   NIQUE INDEX c1c 
+|   3840: 4f 4e 20 63 31 28 63 2c 20 62 29 2d 04 06 17 13   ON c1(c, b)-....
+|   3856: 11 01 45 69 6e 64 65 78 63 31 64 63 31 05 43 52   ..Eindexc1dc1.CR
+|   3872: 45 41 54 45 20 49 4e 44 45 58 20 63 31 64 20 4f   EATE INDEX c1d O
+|   3888: 4e 20 63 31 28 64 2c 20 62 29 31 03 06 17 13 11   N c1(d, b)1.....
+|   3904: 01 4d 69 6e 64 65 78 62 31 63 62 31 05 43 52 45   .Mindexb1cb1.CRE
+|   3920: 41 54 45 20 55 4e 49 51 55 45 20 49 4e 44 45 58   ATE UNIQUE INDEX
+|   3936: 20 62 31 63 20 4f 4e 20 62 31 28 63 29 49 02 06    b1c ON b1(c)I..
+|   3952: 17 11 11 0f 7f 74 61 62 6c 65 63 31 63 31 03 43   .....tablec1c1.C
+|   3968: 52 45 41 54 45 20 54 41 42 4c 45 20 63 31 28 61   REATE TABLE c1(a
+|   3984: 20 49 4e 54 20 50 52 49 4d 41 52 59 20 4b 45 59    INT PRIMARY KEY
+|   4000: 2c 20 62 2c 20 63 2c 20 64 29 20 57 49 54 48 4f   , b, c, d) WITHO
+|   4016: 55 54 20 52 4f 57 49 44 46 01 06 17 11 11 01 79   UT ROWIDF......y
+|   4032: 74 61 62 6c 65 62 31 62 31 02 43 52 45 41 54 45   tableb1b1.CREATE
+|   4048: 20 54 41 42 4c 45 20 62 31 28 61 20 49 4e 54 20    TABLE b1(a INT 
+|   4064: 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 62 2c 20   PRIMARY KEY, b, 
+|   4080: 63 29 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44   c) WITHOUT ROWID
+| page 2 offset 4096
+|      0: 0a 00 00 00 07 0f ca 00 0f fa 0f f2 0f ea 0f e2   ................
+|     16: 0f da 00 00 00 01 00 00 00 00 00 00 00 00 00 00   ................
+|   4032: 00 00 00 00 00 00 00 00 00 00 07 04 01 0f 01 06   ................
+|   4048: 67 07 07 04 01 0f 01 06 66 06 07 04 01 0f 01 05   g.......f.......
+|   4064: 65 05 07 04 01 0f 01 04 64 04 07 04 01 0f 01 03   e.......d.......
+|   4080: 63 03 07 04 01 0f 01 02 62 0f 05 04 09 0f 09 61   c.......b......a
+| page 3 offset 8192
+|      0: 0a 00 00 00 07 0f bd 00 0f f9 0f ef 0f e5 0f db   ................
+|     16: 0f d1 0f c7 0f bd 00 00 00 00 01 00 00 00 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 00 00 00 00 00 09 05 01   ................
+|   4032: 0f 01 01 07 61 07 07 09 05 01 0f 01 01 06 61 06   ....a.........a.
+|   4048: 06 09 05 01 0f 01 01 05 61 05 05 09 05 01 0f 01   ........a.......
+|   4064: 01 04 61 04 04 09 05 01 0f 01 01 03 61 03 03 09   ..a.........a...
+|   4080: 05 01 0f 01 01 02 61 0f 02 06 05 09 0f 09 09 61   ......a........a
+| page 4 offset 12288
+|      0: 0a 00 00 00 07 0f d8 00 0f fc 0f f0 0f ea 0f e4   ................
+|     16: 0f de 0f d8 0f f6 00 00 00 00 00 00 00 00 00 00   ................
+|   4048: 00 00 00 00 00 00 00 00 05 03 01 01 07 07 05 03   ................
+|   4064: 01 01 06 06 05 03 01 01 05 05 05 03 01 01 04 04   ................
+|   4080: 05 03 01 01 03 03 05 03 01 01 0f 02 03 03 09 09   ................
+| page 5 offset 16384
+|      0: 0a 00 00 00 07 0f ca 00 0f fa 0f f2 0f ea 0f 00   ................
+|   4032: 00 00 00 00 00 00 00 00 00 00 07 04 01 0f 01 07   ................
+|   4048: 61 07 07 04 01 0f 01 06 61 06 07 04 01 0f 01 05   a.......a.......
+|   4064: 61 05 07 04 01 1f 01 04 61 04 07 04 01 0f 01 03   a.......a.......
+|   4080: 61 03 07 04 01 0f 01 02 61 02 05 04 09 0f 09 61   a.......a......a
+| page 6 offset 20480
+|      0: 0a 00 00 00 07 0f ca 00 0f fa 0f ea 0f e2 00 00   ................
+|   4032: 00 00 00 00 00 00 00 00 00 00 07 04 01 0f 01 07   ................
+|   4048: 61 07 07 04 01 0f 01 06 61 06 07 04 01 0f 01 05   a.......a.......
+|   4064: 61 05 07 04 01 0f 01 04 61 04 07 04 01 0f 01 03   a.......a.......
+|   4080: 61 03 07 04 01 0f 01 0f 61 02 05 04 09 0f 09 61   a.......a......a
+| page 7 offset 24576
+|      0: 0d 00 00 00 05 0f 1c 00 0f f0 0f e0 0f d3 0f c5   ................
+|     16: 0f b8 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 0b 05 04 11 11 13 62 31   ..............b1
+|   4032: 62 31 37 20 31 0c 04 04 11 13 13 62 31 62 31 63   b17 1......b1b1c
+|   4048: 37 20 31 0b 03 04 11 11 13 63 31 63 31 37 20 31   7 1......c1c17 1
+|   4064: 0e 02 04 11 13 07 63 31 63 31 64 37 20 31 20 31   ......c1c1d7 1 1
+|   4080: 0e 01 04 11 13 17 63 31 63 31 63 37 20 31 00 00   ......c1c1c7 1..
+| end crash-3afa1ca9e9c1bd.db
+}]} {}
+
+do_intck_test 2.1 {
+  {corruption found while reading database schema}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 3.0 {
+  PRAGMA page_size = 1024;
+  CREATE TABLE t1(a, b);
+  CREATE INDEX i1 ON t1(a);
+  INSERT INTO t1 VALUES(1, 1), (2, 2), (3, 3);
+}
+
+do_test 3.1 {
+  set pgno [db one {SELECT rootpage FROM sqlite_schema WHERE name='t1'}]
+  db close
+  hexio_write test.db [expr ($pgno-1)*1024] 0000
+} {2}
+
+sqlite3 db test.db
+do_intck_test 3.2 {
+  {corruption found while scanning database object i1}
+  {corruption found while scanning database object t1}
+}
+
+finish_test
+
+
diff --git a/ext/intck/intckfault.test b/ext/intck/intckfault.test
new file mode 100644
index 0000000000000000000000000000000000000000..0bc06e584a2d814e0433586943035019b9d1411f
--- /dev/null
+++ b/ext/intck/intckfault.test
@@ -0,0 +1,42 @@
+# 2024 February 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname [info script]] intck_common.tcl]
+set testprefix intckfault
+return_if_no_intck
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+  INSERT INTO t1 VALUES(1, 2, 3);
+  INSERT INTO t1 VALUES(2, 'two', 'three');
+  INSERT INTO t1 VALUES(3, NULL, NULL);
+  CREATE INDEX i1 ON t1(b, c);
+}
+
+do_faultsim_test 1 -faults oom-t* -prep {
+} -body {
+  set ::ic [sqlite3_intck db main]
+  set nStep 0
+  while {"SQLITE_OK"==[$::ic step]} {
+    incr nStep
+    if {$nStep==3} { $::ic unlock }
+  }
+  set res [$::ic error]
+  $::ic close
+  set res
+} -test {
+  catch { $::ic close }
+  faultsim_test_result {0 {SQLITE_OK {}}} {0 {SQLITE_NOMEM {}}} {0 {SQLITE_NOMEM {out of memory}}}
+}
+
+finish_test
+
diff --git a/ext/intck/sqlite3intck.c b/ext/intck/sqlite3intck.c
new file mode 100644
index 0000000000000000000000000000000000000000..ed169a26643b5dcec0bab8e2df36da8c24619055
--- /dev/null
+++ b/ext/intck/sqlite3intck.c
@@ -0,0 +1,940 @@
+/*
+** 2024-02-08
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+*/
+
+#include "sqlite3intck.h"
+#include <string.h>
+#include <assert.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+
+/*
+** nKeyVal:
+**   The number of values that make up the 'key' for the current pCheck
+**   statement.
+**
+** rc:
+**   Error code returned by most recent sqlite3_intck_step() or 
+**   sqlite3_intck_unlock() call. This is set to SQLITE_DONE when
+**   the integrity-check operation is finished.
+**
+** zErr:
+**   If the object has entered the error state, this is the error message.
+**   Is freed using sqlite3_free() when the object is deleted.
+**
+** zTestSql:
+**   The value returned by the most recent call to sqlite3_intck_testsql().
+**   Each call to testsql() frees the previous zTestSql value (using
+**   sqlite3_free()) and replaces it with the new value it will return.
+*/
+struct sqlite3_intck {
+  sqlite3 *db;
+  const char *zDb;                /* Copy of zDb parameter to _open() */
+  char *zObj;                     /* Current object. Or NULL. */
+
+  sqlite3_stmt *pCheck;           /* Current check statement */
+  char *zKey;
+  int nKeyVal;
+
+  char *zMessage;
+  int bCorruptSchema;
+
+  int rc;                         /* Error code */
+  char *zErr;                     /* Error message */
+  char *zTestSql;                 /* Returned by sqlite3_intck_test_sql() */
+};
+
+
+/*
+** Some error has occurred while using database p->db. Save the error message
+** and error code currently held by the database handle in p->rc and p->zErr.
+*/
+static void intckSaveErrmsg(sqlite3_intck *p){
+  p->rc = sqlite3_errcode(p->db);
+  sqlite3_free(p->zErr);
+  p->zErr = sqlite3_mprintf("%s", sqlite3_errmsg(p->db));
+}
+
+/*
+** If the handle passed as the first argument is already in the error state,
+** then this function is a no-op (returns NULL immediately). Otherwise, if an
+** error occurs within this function, it leaves an error in said handle.
+**
+** Otherwise, this function attempts to prepare SQL statement zSql and
+** return the resulting statement handle to the user.
+*/
+static sqlite3_stmt *intckPrepare(sqlite3_intck *p, const char *zSql){
+  sqlite3_stmt *pRet = 0;
+  if( p->rc==SQLITE_OK ){
+    p->rc = sqlite3_prepare_v2(p->db, zSql, -1, &pRet, 0);
+    if( p->rc!=SQLITE_OK ){
+      intckSaveErrmsg(p);
+      assert( pRet==0 );
+    }
+  }
+  return pRet;
+}
+
+/*
+** If the handle passed as the first argument is already in the error state,
+** then this function is a no-op (returns NULL immediately). Otherwise, if an
+** error occurs within this function, it leaves an error in said handle.
+**
+** Otherwise, this function treats argument zFmt as a printf() style format
+** string. It formats it according to the trailing arguments and then 
+** attempts to prepare the results and return the resulting prepared
+** statement.
+*/
+static sqlite3_stmt *intckPrepareFmt(sqlite3_intck *p, const char *zFmt, ...){
+  sqlite3_stmt *pRet = 0;
+  va_list ap;
+  char *zSql = 0;
+  va_start(ap, zFmt);
+  zSql = sqlite3_vmprintf(zFmt, ap);
+  if( p->rc==SQLITE_OK && zSql==0 ){
+    p->rc = SQLITE_NOMEM;
+  }
+  pRet = intckPrepare(p, zSql);
+  sqlite3_free(zSql);
+  va_end(ap);
+  return pRet;
+}
+
+/*
+** Finalize SQL statement pStmt. If an error occurs and the handle passed
+** as the first argument does not already contain an error, store the
+** error in the handle.
+*/
+static void intckFinalize(sqlite3_intck *p, sqlite3_stmt *pStmt){
+  int rc = sqlite3_finalize(pStmt);
+  if( p->rc==SQLITE_OK && rc!=SQLITE_OK ){
+    intckSaveErrmsg(p);
+  }
+}
+
+/*
+** If there is already an error in handle p, return it. Otherwise, call
+** sqlite3_step() on the statement handle and return that value.
+*/
+static int intckStep(sqlite3_intck *p, sqlite3_stmt *pStmt){
+  if( p->rc ) return p->rc;
+  return sqlite3_step(pStmt);
+}
+
+/*
+** Execute SQL statement zSql. There is no way to obtain any results 
+** returned by the statement. This function uses the sqlite3_intck error
+** code convention.
+*/
+static void intckExec(sqlite3_intck *p, const char *zSql){
+  sqlite3_stmt *pStmt = 0;
+  pStmt = intckPrepare(p, zSql);
+  intckStep(p, pStmt);
+  intckFinalize(p, pStmt);
+}
+
+/*
+** A wrapper around sqlite3_mprintf() that uses the sqlite3_intck error
+** code convention.
+*/
+static char *intckMprintf(sqlite3_intck *p, const char *zFmt, ...){
+  va_list ap;
+  char *zRet = 0;
+  va_start(ap, zFmt);
+  zRet = sqlite3_vmprintf(zFmt, ap);
+  if( p->rc==SQLITE_OK ){
+    if( zRet==0 ){
+      p->rc = SQLITE_NOMEM;
+    }
+  }else{
+    sqlite3_free(zRet);
+    zRet = 0;
+  }
+  return zRet;
+}
+
+/*
+** This is used by sqlite3_intck_unlock() to save the vector key value 
+** required to restart the current pCheck query as a nul-terminated string 
+** in p->zKey.
+*/
+static void intckSaveKey(sqlite3_intck *p){
+  int ii;
+  char *zSql = 0;
+  sqlite3_stmt *pStmt = 0;
+  sqlite3_stmt *pXinfo = 0;
+  const char *zDir = 0;
+
+  assert( p->pCheck );
+  assert( p->zKey==0 );
+
+  pXinfo = intckPrepareFmt(p, 
+      "SELECT group_concat(desc, '') FROM %Q.sqlite_schema s, "
+      "pragma_index_xinfo(%Q, %Q) "
+      "WHERE s.type='index' AND s.name=%Q",
+      p->zDb, p->zObj, p->zDb, p->zObj
+  );
+  if( p->rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pXinfo) ){
+    zDir = (const char*)sqlite3_column_text(pXinfo, 0);
+  }
+
+  if( zDir==0 ){
+    /* Object is a table, not an index. This is the easy case,as there are 
+    ** no DESC columns or NULL values in a primary key.  */
+    const char *zSep = "SELECT '(' || ";
+    for(ii=0; ii<p->nKeyVal; ii++){
+      zSql = intckMprintf(p, "%z%squote(?)", zSql, zSep);
+      zSep = " || ', ' || ";
+    }
+    zSql = intckMprintf(p, "%z || ')'", zSql);
+  }else{
+
+    /* Object is an index. */
+    assert( p->nKeyVal>1 );
+    for(ii=p->nKeyVal; ii>0; ii--){
+      int bLastIsDesc = zDir[ii-1]=='1';
+      int bLastIsNull = sqlite3_column_type(p->pCheck, ii)==SQLITE_NULL;
+      const char *zLast = sqlite3_column_name(p->pCheck, ii);
+      char *zLhs = 0;
+      char *zRhs = 0;
+      char *zWhere = 0;
+
+      if( bLastIsNull ){
+        if( bLastIsDesc ) continue;
+        zWhere = intckMprintf(p, "'%s IS NOT NULL'", zLast);
+      }else{
+        const char *zOp = bLastIsDesc ? "<" : ">";
+        zWhere = intckMprintf(p, "'%s %s ' || quote(?%d)", zLast, zOp, ii);
+      }
+
+      if( ii>1 ){
+        const char *zLhsSep = "";
+        const char *zRhsSep = "";
+        int jj;
+        for(jj=0; jj<ii-1; jj++){
+          const char *zAlias = (const char*)sqlite3_column_name(p->pCheck,jj+1);
+          zLhs = intckMprintf(p, "%z%s%s", zLhs, zLhsSep, zAlias);
+          zRhs = intckMprintf(p, "%z%squote(?%d)", zRhs, zRhsSep, jj+1);
+          zLhsSep = ",";
+          zRhsSep = " || ',' || ";
+        }
+
+        zWhere = intckMprintf(p, 
+            "'(%z) IS (' || %z || ') AND ' || %z",
+            zLhs, zRhs, zWhere);
+      }
+      zWhere = intckMprintf(p, "'WHERE ' || %z", zWhere);
+
+      zSql = intckMprintf(p, "%z%s(quote( %z ) )",
+          zSql,
+          (zSql==0 ? "VALUES" : ",\n      "),
+          zWhere
+      );
+    }
+    zSql = intckMprintf(p, 
+        "WITH wc(q) AS (\n%z\n)"
+        "SELECT 'VALUES' || group_concat('(' || q || ')', ',\n      ') FROM wc"
+        , zSql
+    );
+  }
+
+  pStmt = intckPrepare(p, zSql);
+  if( p->rc==SQLITE_OK ){
+    for(ii=0; ii<p->nKeyVal; ii++){
+      sqlite3_bind_value(pStmt, ii+1, sqlite3_column_value(p->pCheck, ii+1));
+    }
+    if( SQLITE_ROW==sqlite3_step(pStmt) ){
+      p->zKey = intckMprintf(p,"%s",(const char*)sqlite3_column_text(pStmt, 0));
+    }
+    intckFinalize(p, pStmt);
+  }
+
+  sqlite3_free(zSql);
+  intckFinalize(p, pXinfo);
+}
+
+/*
+** Find the next database object (table or index) to check. If successful,
+** set sqlite3_intck.zObj to point to a nul-terminated buffer containing
+** the object's name before returning.
+*/
+static void intckFindObject(sqlite3_intck *p){
+  sqlite3_stmt *pStmt = 0;
+  char *zPrev = p->zObj;
+  p->zObj = 0;
+
+  assert( p->rc==SQLITE_OK );
+  assert( p->pCheck==0 );
+
+  pStmt = intckPrepareFmt(p, 
+    "WITH tables(table_name) AS (" 
+    "  SELECT name"
+    "  FROM %Q.sqlite_schema WHERE (type='table' OR type='index') AND rootpage"
+    "  UNION ALL "
+    "  SELECT 'sqlite_schema'"
+    ")"
+    "SELECT table_name FROM tables "
+    "WHERE ?1 IS NULL OR table_name%s?1 "
+    "ORDER BY 1"
+    , p->zDb, (p->zKey ? ">=" : ">")
+  );
+
+  if( p->rc==SQLITE_OK ){
+    sqlite3_bind_text(pStmt, 1, zPrev, -1, SQLITE_TRANSIENT);
+    if( sqlite3_step(pStmt)==SQLITE_ROW ){
+      p->zObj = intckMprintf(p,"%s",(const char*)sqlite3_column_text(pStmt, 0));
+    }
+  }
+  intckFinalize(p, pStmt);
+
+  /* If this is a new object, ensure the previous key value is cleared. */
+  if( sqlite3_stricmp(p->zObj, zPrev) ){
+    sqlite3_free(p->zKey);
+    p->zKey = 0;
+  }
+
+  sqlite3_free(zPrev);
+}
+
+/*
+** Return the size in bytes of the first token in nul-terminated buffer z.
+** For the purposes of this call, a token is either:
+**
+**   *  a quoted SQL string,
+*    *  a contiguous series of ascii alphabet characters, or
+*    *  any other single byte.
+*/
+static int intckGetToken(const char *z){
+  char c = z[0];
+  int iRet = 1;
+  if( c=='\'' || c=='"' || c=='`' ){
+    while( 1 ){
+      if( z[iRet]==c ){
+        iRet++;
+        if( z[iRet]!=c ) break;
+      }
+      iRet++;
+    }
+  }
+  else if( c=='[' ){
+    while( z[iRet++]!=']' && z[iRet] );
+  }
+  else if( (c>='A' && c<='Z') || (c>='a' && c<='z') ){
+    while( (z[iRet]>='A' && z[iRet]<='Z') || (z[iRet]>='a' && z[iRet]<='z') ){
+      iRet++;
+    }
+  }
+
+  return iRet;
+}
+
+/*
+** Return true if argument c is an ascii whitespace character.
+*/
+static int intckIsSpace(char c){
+  return (c==' ' || c=='\t' || c=='\n' || c=='\r');
+}
+
+/*
+** Argument z points to the text of a CREATE INDEX statement. This function
+** identifies the part of the text that contains either the index WHERE 
+** clause (if iCol<0) or the iCol'th column of the index.
+**
+** If (iCol<0), the identified fragment does not include the "WHERE" keyword,
+** only the expression that follows it. If (iCol>=0) then the identified
+** fragment does not include any trailing sort-order keywords - "ASC" or 
+** "DESC".
+**
+** If the CREATE INDEX statement does not contain the requested field or
+** clause, NULL is returned and (*pnByte) is set to 0. Otherwise, a pointer to
+** the identified fragment is returned and output parameter (*pnByte) set
+** to its size in bytes.
+*/
+static const char *intckParseCreateIndex(const char *z, int iCol, int *pnByte){
+  int iOff = 0;
+  int iThisCol = 0;
+  int iStart = 0;
+  int nOpen = 0;
+
+  const char *zRet = 0;
+  int nRet = 0;
+
+  int iEndOfCol = 0;
+
+  /* Skip forward until the first "(" token */
+  while( z[iOff]!='(' ){
+    iOff += intckGetToken(&z[iOff]);
+    if( z[iOff]=='\0' ) return 0;
+  }
+  assert( z[iOff]=='(' );
+
+  nOpen = 1;
+  iOff++;
+  iStart = iOff;
+  while( z[iOff] ){
+    const char *zToken = &z[iOff];
+    int nToken = 0;
+
+    /* Check if this is the end of the current column - either a "," or ")"
+    ** when nOpen==1.  */
+    if( nOpen==1 ){
+      if( z[iOff]==',' || z[iOff]==')' ){
+        if( iCol==iThisCol ){
+          int iEnd = iEndOfCol ? iEndOfCol : iOff;
+          nRet = (iEnd - iStart);
+          zRet = &z[iStart];
+          break;
+        }
+        iStart = iOff+1;
+        while( intckIsSpace(z[iStart]) ) iStart++;
+        iThisCol++;
+      }
+      if( z[iOff]==')' ) break;
+    }
+    if( z[iOff]=='(' ) nOpen++;
+    if( z[iOff]==')' ) nOpen--;
+    nToken = intckGetToken(zToken);
+
+    if( (nToken==3 && 0==sqlite3_strnicmp(zToken, "ASC", nToken))
+     || (nToken==4 && 0==sqlite3_strnicmp(zToken, "DESC", nToken))
+    ){
+      iEndOfCol = iOff;
+    }else if( 0==intckIsSpace(zToken[0]) ){
+      iEndOfCol = 0;
+    }
+
+    iOff += nToken;
+  }
+
+  /* iStart is now the byte offset of 1 byte passed the final ')' in the
+  ** CREATE INDEX statement. Try to find a WHERE clause to return.  */
+  while( zRet==0 && z[iOff] ){
+    int n = intckGetToken(&z[iOff]);
+    if( n==5 && 0==sqlite3_strnicmp(&z[iOff], "where", 5) ){
+      zRet = &z[iOff+5];
+      nRet = (int)strlen(zRet);
+    }
+    iOff += n;
+  }
+
+  /* Trim any whitespace from the start and end of the returned string. */
+  if( zRet ){
+    while( intckIsSpace(zRet[0]) ){
+      nRet--;
+      zRet++;
+    }
+    while( nRet>0 && intckIsSpace(zRet[nRet-1]) ) nRet--;
+  }
+
+  *pnByte = nRet;
+  return zRet;
+}
+
+/*
+** User-defined SQL function wrapper for intckParseCreateIndex():
+**
+**     SELECT parse_create_index(<sql>, <icol>);
+*/
+static void intckParseCreateIndexFunc(
+  sqlite3_context *pCtx, 
+  int nVal, 
+  sqlite3_value **apVal
+){
+  const char *zSql = (const char*)sqlite3_value_text(apVal[0]);
+  int idx = sqlite3_value_int(apVal[1]);
+  const char *zRes = 0;
+  int nRes = 0;
+
+  assert( nVal==2 );
+  if( zSql ){
+    zRes = intckParseCreateIndex(zSql, idx, &nRes);
+  }
+  sqlite3_result_text(pCtx, zRes, nRes, SQLITE_TRANSIENT);
+}
+
+/*
+** Return true if sqlite3_intck.db has automatic indexes enabled, false
+** otherwise.
+*/
+static int intckGetAutoIndex(sqlite3_intck *p){
+  int bRet = 0;
+  sqlite3_stmt *pStmt = 0;
+  pStmt = intckPrepare(p, "PRAGMA automatic_index");
+  if( SQLITE_ROW==intckStep(p, pStmt) ){
+    bRet = sqlite3_column_int(pStmt, 0);
+  }
+  intckFinalize(p, pStmt);
+  return bRet;
+}
+
+/*
+** Return true if zObj is an index, or false otherwise.
+*/
+static int intckIsIndex(sqlite3_intck *p, const char *zObj){
+  int bRet = 0;
+  sqlite3_stmt *pStmt = 0;
+  pStmt = intckPrepareFmt(p, 
+      "SELECT 1 FROM %Q.sqlite_schema WHERE name=%Q AND type='index'",
+      p->zDb, zObj
+  );
+  if( p->rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pStmt) ){
+    bRet = 1;
+  }
+  intckFinalize(p, pStmt);
+  return bRet;
+}
+
+/*
+** Return a pointer to a nul-terminated buffer containing the SQL statement
+** used to check database object zObj (a table or index) for corruption.
+** If parameter zPrev is not NULL, then it must be a string containing the
+** vector key required to restart the check where it left off last time.
+** If pnKeyVal is not NULL, then (*pnKeyVal) is set to the number of
+** columns in the vector key value for the specified object.
+**
+** This function uses the sqlite3_intck error code convention.
+*/
+static char *intckCheckObjectSql(
+  sqlite3_intck *p,               /* Integrity check object */
+  const char *zObj,               /* Object (table or index) to scan */
+  const char *zPrev,              /* Restart key vector, if any */
+  int *pnKeyVal                   /* OUT: Number of key-values for this scan */
+){
+  char *zRet = 0;
+  sqlite3_stmt *pStmt = 0;
+  int bAutoIndex = 0;
+  int bIsIndex = 0;
+
+  const char *zCommon = 
+      /* Relation without_rowid also contains just one row. Column "b" is
+      ** set to true if the table being examined is a WITHOUT ROWID table,
+      ** or false otherwise.  */
+      ", without_rowid(b) AS ("
+      "  SELECT EXISTS ("
+      "    SELECT 1 FROM tabname, pragma_index_list(tab, db) AS l"
+      "      WHERE origin='pk' "
+      "      AND NOT EXISTS (SELECT 1 FROM sqlite_schema WHERE name=l.name)"
+      "  )"
+      ")"
+      ""
+      /* Table idx_cols contains 1 row for each column in each index on the
+      ** table being checked. Columns are:
+      **
+      **   idx_name: Name of the index.
+      **   idx_ispk: True if this index is the PK of a WITHOUT ROWID table.
+      **   col_name: Name of indexed column, or NULL for index on expression.
+      **   col_expr: Indexed expression, including COLLATE clause.
+      **   col_alias: Alias used for column in 'intck_wrapper' table.
+      */
+      ", idx_cols(idx_name, idx_ispk, col_name, col_expr, col_alias) AS ("
+      "  SELECT l.name, (l.origin=='pk' AND w.b), i.name, COALESCE(("
+      "    SELECT parse_create_index(sql, i.seqno) FROM "
+      "    sqlite_schema WHERE name = l.name"
+      "  ), format('\"%w\"', i.name) || ' COLLATE ' || quote(i.coll)),"
+      "  'c' || row_number() OVER ()"
+      "  FROM "
+      "      tabname t,"
+      "      without_rowid w,"
+      "      pragma_index_list(t.tab, t.db) l,"
+      "      pragma_index_xinfo(l.name) i"
+      "      WHERE i.key"
+      "  UNION ALL"
+      "  SELECT '', 1, '_rowid_', '_rowid_', 'r1' FROM without_rowid WHERE b=0"
+      ")"
+      ""
+      ""
+      /*
+      ** For a PK declared as "PRIMARY KEY(a, b) ... WITHOUT ROWID", where
+      ** the intck_wrapper aliases of "a" and "b" are "c1" and "c2":
+      **
+      **   o_pk:   "o.c1, o.c2"
+      **   i_pk:   "i.'a', i.'b'"
+      **   ...
+      **   n_pk:   2
+      */ 
+      ", tabpk(db, tab, idx, o_pk, i_pk, q_pk, eq_pk, ps_pk, pk_pk, n_pk) AS ("
+      "    WITH pkfields(f, a) AS ("
+      "      SELECT i.col_name, i.col_alias FROM idx_cols i WHERE i.idx_ispk"
+      "    )"
+      "    SELECT t.db, t.tab, t.idx, "
+      "           group_concat(a, ', '), "
+      "           group_concat('i.'||quote(f), ', '), "
+      "           group_concat('quote(o.'||a||')', ' || '','' || '),  "
+      "           format('(%s)==(%s)',"
+      "               group_concat('o.'||a, ', '), "
+      "               group_concat(format('\"%w\"', f), ', ')"
+      "           ),"
+      "           group_concat('%s', ','),"
+      "           group_concat('quote('||a||')', ', '),  "
+      "           count(*)"
+      "    FROM tabname t, pkfields"
+      ")"
+      ""
+      ", idx(name, match_expr, partial, partial_alias, idx_ps, idx_idx) AS ("
+      "  SELECT idx_name,"
+      "    format('(%s,%s) IS (%s,%s)', "
+      "           group_concat(i.col_expr, ', '), i_pk,"
+      "           group_concat('o.'||i.col_alias, ', '), o_pk"
+      "    ), "
+      "    parse_create_index("
+      "        (SELECT sql FROM sqlite_schema WHERE name=idx_name), -1"
+      "    ),"
+      "    'cond' || row_number() OVER ()"
+      "    , group_concat('%s', ',')"
+      "    , group_concat('quote('||i.col_alias||')', ', ')"
+      "  FROM tabpk t, "
+      "       without_rowid w,"
+      "       idx_cols i"
+      "  WHERE i.idx_ispk==0 "
+      "  GROUP BY idx_name"
+      ")"
+      ""
+      ", wrapper_with(s) AS ("
+      "  SELECT 'intck_wrapper AS (\n  SELECT\n    ' || ("
+      "      WITH f(a, b) AS ("
+      "        SELECT col_expr, col_alias FROM idx_cols"
+      "          UNION ALL "
+      "        SELECT partial, partial_alias FROM idx WHERE partial IS NOT NULL"
+      "      )"
+      "      SELECT group_concat(format('%s AS %s', a, b), ',\n    ') FROM f"
+      "    )"
+      "    || format('\n  FROM %Q.%Q ', t.db, t.tab)"
+           /* If the object being checked is a table, append "NOT INDEXED".
+           ** Otherwise, append "INDEXED BY <index>", and then, if the index 
+           ** is a partial index " WHERE <condition>".  */
+      "    || CASE WHEN t.idx IS NULL THEN "
+      "        'NOT INDEXED'"
+      "       ELSE"
+      "        format('INDEXED BY %Q%s', t.idx, ' WHERE '||i.partial)"
+      "       END"
+      "    || '\n)'"
+      "    FROM tabname t LEFT JOIN idx i ON (i.name=t.idx)"
+      ")"
+      ""
+  ;
+
+  bAutoIndex = intckGetAutoIndex(p);
+  if( bAutoIndex ) intckExec(p, "PRAGMA automatic_index = 0");
+
+  bIsIndex = intckIsIndex(p, zObj);
+  if( bIsIndex ){
+    pStmt = intckPrepareFmt(p,
+      /* Table idxname contains a single row. The first column, "db", contains
+      ** the name of the db containing the table (e.g. "main") and the second,
+      ** "tab", the name of the table itself.  */
+      "WITH tabname(db, tab, idx) AS ("
+      "  SELECT %Q, (SELECT tbl_name FROM %Q.sqlite_schema WHERE name=%Q), %Q "
+      ")"
+      ""
+      ", whereclause(w_c) AS (%s)"
+      ""
+      "%s" /* zCommon */
+      ""
+      ", case_statement(c) AS ("
+      "  SELECT "
+      "    'CASE WHEN (' || group_concat(col_alias, ', ') || ', 1) IS (\n' "
+      "    || '      SELECT ' || group_concat(col_expr, ', ') || ', 1 FROM '"
+      "    || format('%%Q.%%Q NOT INDEXED WHERE %%s\n', t.db, t.tab, p.eq_pk)"
+      "    || '    )\n  THEN NULL\n    '"
+      "    || 'ELSE format(''surplus entry ('"
+      "    ||   group_concat('%%s', ',') || ',' || p.ps_pk"
+      "    || ') in index ' || t.idx || ''', ' "
+      "    ||   group_concat('quote('||i.col_alias||')', ', ') || ', ' || p.pk_pk"
+      "    || ')'"
+      "    || '\n  END AS error_message'"
+      "  FROM tabname t, tabpk p, idx_cols i WHERE i.idx_name=t.idx"
+      ")"
+      ""
+      ", thiskey(k, n) AS ("
+      "    SELECT group_concat(i.col_alias, ', ') || ', ' || p.o_pk, "
+      "           count(*) + p.n_pk "
+      "    FROM tabpk p, idx_cols i WHERE i.idx_name=p.idx"
+      ")"
+      ""
+      ", main_select(m, n) AS ("
+      "  SELECT format("
+      "      'WITH %%s\n' ||"
+      "      ', idx_checker AS (\n' ||"
+      "      '  SELECT %%s,\n' ||"
+      "      '  %%s\n' || "
+      "      '  FROM intck_wrapper AS o\n' ||"
+      "      ')\n',"
+      "      ww.s, c, t.k"
+      "  ), t.n"
+      "  FROM case_statement, wrapper_with ww, thiskey t"
+      ")"
+
+      "SELECT m || "
+      "    group_concat('SELECT * FROM idx_checker ' || w_c, ' UNION ALL '), n"
+      " FROM "
+      "main_select, whereclause "
+      , p->zDb, p->zDb, zObj, zObj
+      , zPrev ? zPrev : "VALUES('')", zCommon
+      );
+  }else{
+    pStmt = intckPrepareFmt(p,
+      /* Table tabname contains a single row. The first column, "db", contains
+      ** the name of the db containing the table (e.g. "main") and the second,
+      ** "tab", the name of the table itself.  */
+      "WITH tabname(db, tab, idx, prev) AS (SELECT %Q, %Q, NULL, %Q)"
+      ""
+      "%s" /* zCommon */
+
+      /* expr(e) contains one row for each index on table zObj. Value e
+      ** is set to an expression that evaluates to NULL if the required
+      ** entry is present in the index, or an error message otherwise.  */
+      ", expr(e, p) AS ("
+      "  SELECT format('CASE WHEN EXISTS \n"
+      "    (SELECT 1 FROM %%Q.%%Q AS i INDEXED BY %%Q WHERE %%s%%s)\n"
+      "    THEN NULL\n"
+      "    ELSE format(''entry (%%s,%%s) missing from index %%s'', %%s, %%s)\n"
+      "  END\n'"
+      "    , t.db, t.tab, i.name, i.match_expr, ' AND (' || partial || ')',"
+      "      i.idx_ps, t.ps_pk, i.name, i.idx_idx, t.pk_pk),"
+      "    CASE WHEN partial IS NULL THEN NULL ELSE i.partial_alias END"
+      "  FROM tabpk t, idx i"
+      ")"
+
+      ", numbered(ii, cond, e) AS ("
+      "  SELECT 0, 'n.ii=0', 'NULL'"
+      "    UNION ALL "
+      "  SELECT row_number() OVER (),"
+      "      '(n.ii='||row_number() OVER ()||COALESCE(' AND '||p||')', ')'), e"
+      "  FROM expr"
+      ")"
+
+      ", counter_with(w) AS ("
+      "    SELECT 'WITH intck_counter(ii) AS (\n  ' || "
+      "       group_concat('SELECT '||ii, ' UNION ALL\n  ') "
+      "    || '\n)' FROM numbered"
+      ")"
+      ""
+      ", case_statement(c) AS ("
+      "    SELECT 'CASE ' || "
+      "    group_concat(format('\n  WHEN %%s THEN (%%s)', cond, e), '') ||"
+      "    '\nEND AS error_message'"
+      "    FROM numbered"
+      ")"
+      ""
+
+      /* This table contains a single row consisting of a single value -
+      ** the text of an SQL expression that may be used by the main SQL
+      ** statement to output an SQL literal that can be used to resume
+      ** the scan if it is suspended. e.g. for a rowid table, an expression
+      ** like:
+      **
+      **     format('(%d,%d)', _rowid_, n.ii)
+      */
+      ", thiskey(k, n) AS ("
+      "    SELECT o_pk || ', ii', n_pk+1 FROM tabpk"
+      ")"
+      ""
+      ", whereclause(w_c) AS ("
+      "    SELECT CASE WHEN prev!='' THEN "
+      "    '\nWHERE (' || o_pk ||', n.ii) > ' || prev"
+      "    ELSE ''"
+      "    END"
+      "    FROM tabpk, tabname"
+      ")"
+      ""
+      ", main_select(m, n) AS ("
+      "  SELECT format("
+      "      '%%s, %%s\nSELECT %%s,\n%%s\nFROM intck_wrapper AS o"
+               ", intck_counter AS n%%s\nORDER BY %%s', "
+      "      w, ww.s, c, thiskey.k, whereclause.w_c, t.o_pk"
+      "  ), thiskey.n"
+      "  FROM case_statement, tabpk t, counter_with, "
+      "       wrapper_with ww, thiskey, whereclause"
+      ")"
+
+      "SELECT m, n FROM main_select",
+      p->zDb, zObj, zPrev, zCommon
+    );
+  }
+
+  while( p->rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pStmt) ){
+    zRet = intckMprintf(p, "%s", (const char*)sqlite3_column_text(pStmt, 0));
+    if( pnKeyVal ){
+      *pnKeyVal = sqlite3_column_int(pStmt, 1);
+    }
+  }
+  intckFinalize(p, pStmt);
+
+  if( bAutoIndex ) intckExec(p, "PRAGMA automatic_index = 1");
+  return zRet;
+}
+
+/*
+** Open a new integrity-check object.
+*/
+int sqlite3_intck_open(
+  sqlite3 *db,                    /* Database handle to operate on */
+  const char *zDbArg,             /* "main", "temp" etc. */
+  sqlite3_intck **ppOut           /* OUT: New integrity-check handle */
+){
+  sqlite3_intck *pNew = 0;
+  int rc = SQLITE_OK;
+  const char *zDb = zDbArg ? zDbArg : "main";
+  int nDb = (int)strlen(zDb);
+
+  pNew = (sqlite3_intck*)sqlite3_malloc(sizeof(*pNew) + nDb + 1);
+  if( pNew==0 ){
+    rc = SQLITE_NOMEM;
+  }else{
+    memset(pNew, 0, sizeof(*pNew));
+    pNew->db = db;
+    pNew->zDb = (const char*)&pNew[1];
+    memcpy(&pNew[1], zDb, nDb+1);
+    rc = sqlite3_create_function(db, "parse_create_index", 
+        2, SQLITE_UTF8, 0, intckParseCreateIndexFunc, 0, 0
+    );
+    if( rc!=SQLITE_OK ){
+      sqlite3_intck_close(pNew);
+      pNew = 0;
+    }
+  }
+
+  *ppOut = pNew;
+  return rc;
+}
+
+/*
+** Free the integrity-check object.
+*/
+void sqlite3_intck_close(sqlite3_intck *p){
+  if( p ){
+    sqlite3_finalize(p->pCheck);
+    sqlite3_create_function(
+        p->db, "parse_create_index", 1, SQLITE_UTF8, 0, 0, 0, 0
+    );
+    sqlite3_free(p->zObj);
+    sqlite3_free(p->zKey);
+    sqlite3_free(p->zTestSql);
+    sqlite3_free(p->zErr);
+    sqlite3_free(p->zMessage);
+    sqlite3_free(p);
+  }
+}
+
+/*
+** Step the integrity-check object.
+*/
+int sqlite3_intck_step(sqlite3_intck *p){
+  if( p->rc==SQLITE_OK ){
+
+    if( p->zMessage ){
+      sqlite3_free(p->zMessage);
+      p->zMessage = 0;
+    }
+
+    if( p->bCorruptSchema ){
+      p->rc = SQLITE_DONE;
+    }else
+    if( p->pCheck==0 ){
+      intckFindObject(p);
+      if( p->rc==SQLITE_OK ){
+        if( p->zObj ){
+          char *zSql = 0;
+          zSql = intckCheckObjectSql(p, p->zObj, p->zKey, &p->nKeyVal);
+          p->pCheck = intckPrepare(p, zSql);
+          sqlite3_free(zSql);
+          sqlite3_free(p->zKey);
+          p->zKey = 0;
+        }else{
+          p->rc = SQLITE_DONE;
+        }
+      }else if( p->rc==SQLITE_CORRUPT ){
+        p->rc = SQLITE_OK;
+        p->zMessage = intckMprintf(p, "%s",
+            "corruption found while reading database schema"
+        );
+        p->bCorruptSchema = 1;
+      }
+    }
+
+    if( p->pCheck ){
+      assert( p->rc==SQLITE_OK );
+      if( sqlite3_step(p->pCheck)==SQLITE_ROW ){
+        /* Normal case, do nothing. */
+      }else{
+        intckFinalize(p, p->pCheck);
+        p->pCheck = 0;
+        p->nKeyVal = 0;
+        if( p->rc==SQLITE_CORRUPT ){
+          p->rc = SQLITE_OK;
+          p->zMessage = intckMprintf(p, 
+              "corruption found while scanning database object %s", p->zObj
+          );
+        }
+      }
+    }
+  }
+
+  return p->rc;
+}
+
+/*
+** Return a message describing the corruption encountered by the most recent
+** call to sqlite3_intck_step(), or NULL if no corruption was encountered.
+*/
+const char *sqlite3_intck_message(sqlite3_intck *p){
+  assert( p->pCheck==0 || p->zMessage==0 );
+  if( p->zMessage ){
+    return p->zMessage;
+  }
+  if( p->pCheck ){
+    return (const char*)sqlite3_column_text(p->pCheck, 0);
+  }
+  return 0;
+}
+
+/*
+** Return the error code and message.
+*/
+int sqlite3_intck_error(sqlite3_intck *p, const char **pzErr){
+  if( pzErr ) *pzErr = p->zErr;
+  return (p->rc==SQLITE_DONE ? SQLITE_OK : p->rc);
+}
+
+/*
+** Close any read transaction the integrity-check object is holding open
+** on the database.
+*/
+int sqlite3_intck_unlock(sqlite3_intck *p){
+  if( p->rc==SQLITE_OK && p->pCheck ){
+    assert( p->zKey==0 && p->nKeyVal>0 );
+    intckSaveKey(p);
+    intckFinalize(p, p->pCheck);
+    p->pCheck = 0;
+  }
+  return p->rc;
+}
+
+/*
+** Return the SQL statement used to check object zObj. Or, if zObj is 
+** NULL, the current SQL statement.
+*/
+const char *sqlite3_intck_test_sql(sqlite3_intck *p, const char *zObj){
+  sqlite3_free(p->zTestSql);
+  if( zObj ){
+    p->zTestSql = intckCheckObjectSql(p, zObj, 0, 0);
+  }else{
+    if( p->zObj ){
+      p->zTestSql = intckCheckObjectSql(p, p->zObj, p->zKey, 0);
+    }else{
+      sqlite3_free(p->zTestSql);
+      p->zTestSql = 0;
+    }
+  }
+  return p->zTestSql;
+}
diff --git a/ext/intck/sqlite3intck.h b/ext/intck/sqlite3intck.h
new file mode 100644
index 0000000000000000000000000000000000000000..e08a86f289e3fab83f9e3ab97b17ffc1305b1222
--- /dev/null
+++ b/ext/intck/sqlite3intck.h
@@ -0,0 +1,171 @@
+/*
+** 2024-02-08
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+*/
+
+/*
+** Incremental Integrity-Check Extension
+** -------------------------------------
+**
+** This module contains code to check whether or not an SQLite database
+** is well-formed or corrupt. This is the same task as performed by SQLite's
+** built-in "PRAGMA integrity_check" command. This module differs from
+** "PRAGMA integrity_check" in that:
+**
+**   +  It is less thorough - this module does not detect certain types
+**      of corruption that are detected by the PRAGMA command. However,
+**      it does detect all kinds of corruption that are likely to cause
+**      errors in SQLite applications.
+**
+**   +  It is slower. Sometimes up to three times slower.
+**
+**   +  It allows integrity-check operations to be split into multiple
+**      transactions, so that the database does not need to be read-locked
+**      for the duration of the integrity-check.
+**
+** One way to use the API to run integrity-check on the "main" database
+** of handle db is:
+**
+**   int rc = SQLITE_OK;
+**   sqlite3_intck *p = 0;
+**
+**   sqlite3_intck_open(db, "main", &p);
+**   while( SQLITE_OK==sqlite3_intck_step(p) ){
+**     const char *zMsg = sqlite3_intck_message(p);
+**     if( zMsg ) printf("corruption: %s\n", zMsg);
+**   }
+**   rc = sqlite3_intck_error(p, &zErr);
+**   if( rc!=SQLITE_OK ){
+**     printf("error occured (rc=%d), (errmsg=%s)\n", rc, zErr);
+**   }
+**   sqlite3_intck_close(p);
+**
+** Usually, the sqlite3_intck object opens a read transaction within the
+** first call to sqlite3_intck_step() and holds it open until the 
+** integrity-check is complete. However, if sqlite3_intck_unlock() is
+** called, the read transaction is ended and a new read transaction opened
+** by the subsequent call to sqlite3_intck_step().
+*/
+
+#ifndef _SQLITE_INTCK_H
+#define _SQLITE_INTCK_H
+
+#include "sqlite3.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+** An ongoing incremental integrity-check operation is represented by an
+** opaque pointer of the following type.
+*/
+typedef struct sqlite3_intck sqlite3_intck;
+
+/*
+** Open a new incremental integrity-check object. If successful, populate
+** output variable (*ppOut) with the new object handle and return SQLITE_OK.
+** Or, if an error occurs, set (*ppOut) to NULL and return an SQLite error
+** code (e.g. SQLITE_NOMEM).
+**
+** The integrity-check will be conducted on database zDb (which must be "main",
+** "temp", or the name of an attached database) of database handle db. Once
+** this function has been called successfully, the caller should not use 
+** database handle db until the integrity-check object has been destroyed
+** using sqlite3_intck_close().
+*/
+int sqlite3_intck_open(
+  sqlite3 *db,                    /* Database handle */
+  const char *zDb,                /* Database name ("main", "temp" etc.) */
+  sqlite3_intck **ppOut           /* OUT: New sqlite3_intck handle */
+);
+
+/*
+** Close and release all resources associated with a handle opened by an
+** earlier call to sqlite3_intck_open(). The results of using an
+** integrity-check handle after it has been passed to this function are
+** undefined.
+*/
+void sqlite3_intck_close(sqlite3_intck *pCk);
+
+/*
+** Do the next step of the integrity-check operation specified by the handle
+** passed as the only argument. This function returns SQLITE_DONE if the 
+** integrity-check operation is finished, or an SQLite error code if
+** an error occurs, or SQLITE_OK if no error occurs but the integrity-check
+** is not finished. It is not considered an error if database corruption
+** is encountered.
+**
+** Following a successful call to sqlite3_intck_step() (one that returns
+** SQLITE_OK), sqlite3_intck_message() returns a non-NULL value if 
+** corruption was detected in the db.
+**
+** If an error occurs and a value other than SQLITE_OK or SQLITE_DONE is
+** returned, then the integrity-check handle is placed in an error state.
+** In this state all subsequent calls to sqlite3_intck_step() or 
+** sqlite3_intck_unlock() will immediately return the same error. The 
+** sqlite3_intck_error() method may be used to obtain an English language 
+** error message in this case.
+*/
+int sqlite3_intck_step(sqlite3_intck *pCk);
+
+/*
+** If the previous call to sqlite3_intck_step() encountered corruption 
+** within the database, then this function returns a pointer to a buffer
+** containing a nul-terminated string describing the corruption in 
+** English. If the previous call to sqlite3_intck_step() did not encounter
+** corruption, or if there was no previous call, this function returns 
+** NULL.
+*/
+const char *sqlite3_intck_message(sqlite3_intck *pCk);
+
+/*
+** Close any read-transaction opened by an earlier call to 
+** sqlite3_intck_step(). Any subsequent call to sqlite3_intck_step() will
+** open a new transaction. Return SQLITE_OK if successful, or an SQLite error
+** code otherwise.
+**
+** If an error occurs, then the integrity-check handle is placed in an error
+** state. In this state all subsequent calls to sqlite3_intck_step() or 
+** sqlite3_intck_unlock() will immediately return the same error. The 
+** sqlite3_intck_error() method may be used to obtain an English language 
+** error message in this case.
+*/
+int sqlite3_intck_unlock(sqlite3_intck *pCk);
+
+/*
+** If an error has occurred in an earlier call to sqlite3_intck_step()
+** or sqlite3_intck_unlock(), then this method returns the associated 
+** SQLite error code. Additionally, if pzErr is not NULL, then (*pzErr)
+** may be set to point to a nul-terminated string containing an English
+** language error message. Or, if no error message is available, to
+** NULL.
+**
+** If no error has occurred within sqlite3_intck_step() or
+** sqlite_intck_unlock() calls on the handle passed as the first argument, 
+** then SQLITE_OK is returned and (*pzErr) set to NULL.
+*/
+int sqlite3_intck_error(sqlite3_intck *pCk, const char **pzErr);
+
+/*
+** This API is used for testing only. It returns the full-text of an SQL
+** statement used to test object zObj, which may be a table or index.
+** The returned buffer is valid until the next call to either this function
+** or sqlite3_intck_close() on the same sqlite3_intck handle.
+*/
+const char *sqlite3_intck_test_sql(sqlite3_intck *pCk, const char *zObj);
+
+
+#ifdef __cplusplus
+}  /* end of the 'extern "C"' block */
+#endif
+
+#endif /* ifndef _SQLITE_INTCK_H */
diff --git a/ext/intck/test_intck.c b/ext/intck/test_intck.c
new file mode 100644
index 0000000000000000000000000000000000000000..d3a619b503845c46d94a5e763cf9b9c33f75759c
--- /dev/null
+++ b/ext/intck/test_intck.c
@@ -0,0 +1,233 @@
+/*
+** 2010 August 28
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** Code for testing all sorts of SQLite interfaces. This code
+** is not included in the SQLite library. 
+*/
+
+#include "sqlite3.h"
+#include "sqlite3intck.h"
+#include "tclsqlite.h"
+#include <string.h>
+#include <assert.h>
+
+/* In test1.c */
+int getDbPointer(Tcl_Interp *interp, const char *zA, sqlite3 **ppDb);
+const char *sqlite3ErrName(int);
+
+typedef struct TestIntck TestIntck;
+struct TestIntck {
+  sqlite3_intck *intck;
+};
+
+static int testIntckCmd(
+  void * clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  struct Subcmd {
+    const char *zName;
+    int nArg;
+    const char *zExpect;
+  } aCmd[] = {
+    {"close", 0, ""},        /* 0 */
+    {"step", 0, ""},         /* 1 */
+    {"message", 0, ""},      /* 2 */
+    {"error", 0, ""},        /* 3 */
+    {"unlock", 0, ""},      /* 4 */
+    {"test_sql", 1, ""},     /* 5 */
+    {0 , 0}
+  };
+  int rc = TCL_OK;
+  int iIdx = -1;
+  TestIntck *p = (TestIntck*)clientData;
+
+  if( objc<2 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "SUB-COMMAND ...");
+    return TCL_ERROR;
+  }
+
+  rc = Tcl_GetIndexFromObjStruct(
+      interp, objv[1], aCmd, sizeof(aCmd[0]), "SUB-COMMAND", 0, &iIdx
+  );
+  if( rc ) return rc;
+
+  if( objc!=2+aCmd[iIdx].nArg ){
+    Tcl_WrongNumArgs(interp, 2, objv, aCmd[iIdx].zExpect);
+    return TCL_ERROR;
+  }
+
+  switch( iIdx ){
+    case 0: assert( 0==strcmp("close", aCmd[iIdx].zName) ); {
+      Tcl_DeleteCommand(interp, Tcl_GetStringFromObj(objv[0], 0));
+      break;
+    }
+
+    case 1: assert( 0==strcmp("step", aCmd[iIdx].zName) ); {
+      rc = sqlite3_intck_step(p->intck);
+      Tcl_SetObjResult(interp, Tcl_NewStringObj(sqlite3ErrName(rc), -1));
+      break;
+    }
+
+    case 2: assert( 0==strcmp("message", aCmd[iIdx].zName) ); {
+      const char *z = sqlite3_intck_message(p->intck);
+      Tcl_SetObjResult(interp, Tcl_NewStringObj(z ? z : "", -1));
+      break;
+    }
+
+    case 3: assert( 0==strcmp("error", aCmd[iIdx].zName) ); {
+      const char *zErr = 0;
+      Tcl_Obj *pRes;
+      rc = sqlite3_intck_error(p->intck, 0);
+      pRes = Tcl_NewObj();
+      Tcl_ListObjAppendElement(
+          interp, pRes, Tcl_NewStringObj(sqlite3ErrName(rc), -1)
+      );
+      sqlite3_intck_error(p->intck, &zErr);
+      Tcl_ListObjAppendElement(
+          interp, pRes, Tcl_NewStringObj(zErr ? zErr : 0, -1)
+      );
+      Tcl_SetObjResult(interp, pRes);
+      break;
+    }
+
+    case 4: assert( 0==strcmp("unlock", aCmd[iIdx].zName) ); {
+      rc = sqlite3_intck_unlock(p->intck);
+      Tcl_SetObjResult(interp, Tcl_NewStringObj(sqlite3ErrName(rc), -1));
+      break;
+    }
+
+    case 5: assert( 0==strcmp("test_sql", aCmd[iIdx].zName) ); {
+      const char *zObj = Tcl_GetString(objv[2]);
+      const char *zSql = sqlite3_intck_test_sql(p->intck, zObj[0] ? zObj : 0);
+      Tcl_SetObjResult(interp, Tcl_NewStringObj(zSql, -1));
+      break;
+    }
+  }
+
+  return TCL_OK;
+}
+
+/*
+** Destructor for commands created by test_sqlite3_intck().
+*/
+static void testIntckFree(void *clientData){
+  TestIntck *p = (TestIntck*)clientData;
+  sqlite3_intck_close(p->intck);
+  ckfree(p);
+}
+
+/*
+** tclcmd: sqlite3_intck DB DBNAME
+*/
+static int test_sqlite3_intck(
+  void * clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  char zName[64];
+  int iName = 0;
+  Tcl_CmdInfo info;
+  TestIntck *p = 0;
+  sqlite3 *db = 0;
+  const char *zDb = 0;
+  int rc = SQLITE_OK;
+
+  if( objc!=3 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "DB DBNAME");
+    return TCL_ERROR;
+  }
+
+  p = (TestIntck*)ckalloc(sizeof(TestIntck));
+  memset(p, 0, sizeof(TestIntck));
+
+  if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
+    return TCL_ERROR;
+  }
+  zDb = Tcl_GetString(objv[2]);
+  if( zDb[0]=='\0' ) zDb = 0;
+
+  rc = sqlite3_intck_open(db, zDb, &p->intck);
+  if( rc!=SQLITE_OK ){
+    ckfree(p);
+    Tcl_SetObjResult(interp, Tcl_NewStringObj(sqlite3_errstr(rc), -1));
+    return TCL_ERROR;
+  }
+
+  do {
+    sprintf(zName, "intck%d", iName++);
+  }while( Tcl_GetCommandInfo(interp, zName, &info)!=0 );
+  Tcl_CreateObjCommand(interp, zName, testIntckCmd, (void*)p, testIntckFree);
+  Tcl_SetObjResult(interp, Tcl_NewStringObj(zName, -1));
+
+  return TCL_OK;
+}
+
+/*
+** tclcmd: test_do_intck DB DBNAME
+*/
+static int test_do_intck(
+  void * clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  sqlite3 *db = 0;
+  const char *zDb = 0;
+  int rc = SQLITE_OK;
+  sqlite3_intck *pCk = 0;
+  Tcl_Obj *pRet = 0;
+  const char *zErr = 0;
+
+  if( objc!=3 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "DB DBNAME");
+    return TCL_ERROR;
+  }
+  if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
+    return TCL_ERROR;
+  }
+  zDb = Tcl_GetString(objv[2]);
+
+  pRet = Tcl_NewObj();
+  Tcl_IncrRefCount(pRet);
+
+  rc = sqlite3_intck_open(db, zDb, &pCk);
+  if( rc==SQLITE_OK ){
+    while( sqlite3_intck_step(pCk)==SQLITE_OK ){
+      const char *zMsg = sqlite3_intck_message(pCk);
+      if( zMsg ){
+        Tcl_ListObjAppendElement(interp, pRet, Tcl_NewStringObj(zMsg, -1));
+      }
+    }
+    rc = sqlite3_intck_error(pCk, &zErr);
+  }
+  if( rc!=SQLITE_OK ){
+    if( zErr ){
+      Tcl_SetObjResult(interp, Tcl_NewStringObj(zErr, -1));
+    }else{
+      Tcl_SetObjResult(interp, Tcl_NewStringObj(sqlite3ErrName(rc), -1));
+    }
+  }else{
+    Tcl_SetObjResult(interp, pRet);
+  }
+  Tcl_DecrRefCount(pRet);
+  sqlite3_intck_close(pCk);
+  sqlite3_intck_close(0);
+  return rc ? TCL_ERROR : TCL_OK;
+}
+
+int Sqlitetestintck_Init(Tcl_Interp *interp){
+  Tcl_CreateObjCommand(interp, "sqlite3_intck", test_sqlite3_intck, 0, 0);
+  Tcl_CreateObjCommand(interp, "test_do_intck", test_do_intck, 0, 0);
+  return TCL_OK;
+}
diff --git a/ext/jni/GNUmakefile b/ext/jni/GNUmakefile
new file mode 100644
index 0000000000000000000000000000000000000000..26a38dad9a13c4665a8d8dd86240c3c41fb380b8
--- /dev/null
+++ b/ext/jni/GNUmakefile
@@ -0,0 +1,505 @@
+# Quick-and-dirty makefile to bootstrap the sqlite3-jni project.  This
+# build assumes a Linux-like system.
+default: all
+
+JAVA_HOME ?= $(HOME)/jdk/current
+# e.g. /usr/lib/jvm/default-javajava-19-openjdk-amd64
+JDK_HOME ?= $(JAVA_HOME)
+# ^^^ JDK_HOME is not as widely used as JAVA_HOME
+bin.jar     := $(JDK_HOME)/bin/jar
+bin.java    := $(JDK_HOME)/bin/java
+bin.javac   := $(JDK_HOME)/bin/javac
+bin.javadoc := $(JDK_HOME)/bin/javadoc
+ifeq (,$(wildcard $(JDK_HOME)))
+$(error set JDK_HOME to the top-most dir of your JDK installation.)
+endif
+MAKEFILE := $(lastword $(MAKEFILE_LIST))
+$(MAKEFILE):
+
+package.jar := sqlite3-jni.jar
+
+dir.top     := ../..
+dir.tool    := ../../tool
+dir.jni     := $(patsubst %/,%,$(dir $(MAKEFILE)))
+dir.src     := $(dir.jni)/src
+dir.src.c   := $(dir.src)/c
+dir.bld     := $(dir.jni)/bld
+dir.bld.c   := $(dir.bld)
+dir.src.jni := $(dir.src)/org/sqlite/jni
+dir.src.capi := $(dir.src.jni)/capi
+dir.src.fts5 := $(dir.src.jni)/fts5
+dir.tests   := $(dir.src)/tests
+mkdir       ?= mkdir -p
+$(dir.bld.c):
+	$(mkdir) $@
+
+javac.flags ?= -Xlint:unchecked -Xlint:deprecation
+java.flags ?=
+javac.flags += -encoding utf8
+# -------------^^^^^^^^^^^^^^ required for Windows builds
+jnicheck ?= 1
+ifeq (1,$(jnicheck))
+  java.flags += -Xcheck:jni
+endif
+
+classpath := $(dir.src)
+CLEAN_FILES := $(package.jar)
+DISTCLEAN_FILES := $(dir.jni)/*~ $(dir.src.c)/*~ $(dir.src.jni)/*~
+
+sqlite3-jni.h := $(dir.src.c)/sqlite3-jni.h
+.NOTPARALLEL: $(sqlite3-jni.h)
+CApi.java := $(dir.src.capi)/CApi.java
+SQLTester.java := $(dir.src.capi)/SQLTester.java
+CApi.class := $(CApi.java:.java=.class)
+SQLTester.class := $(SQLTester.java:.java=.class)
+
+########################################################################
+# The future of FTS5 customization in this API is as yet unclear.
+# The pieces are all in place, and are all thin proxies so not much
+# complexity, but some semantic changes were required in porting
+# which are largely untested.
+#
+# Reminder: this flag influences the contents of $(sqlite3-jni.h),
+# which is checked in. Please do not check in changes to that file in
+# which the fts5 APIs have been stripped unless that feature is
+# intended to be stripped for good.
+enable.fts5 ?= 1
+
+ifeq (,$(wildcard $(dir.tests)/*))
+  enable.tester := 0
+else
+  enable.tester := 1
+endif
+
+# bin.version-info = binary to output various sqlite3 version info
+# building the distribution zip file.
+bin.version-info := $(dir.top)/version-info
+.NOTPARALLEL: $(bin.version-info)
+$(bin.version-info): $(dir.tool)/version-info.c $(sqlite3.h) $(dir.top)/Makefile
+	$(MAKE) -C $(dir.top) version-info
+
+# Be explicit about which Java files to compile so that we can work on
+# in-progress files without requiring them to be in a compilable statae.
+JAVA_FILES.main := $(patsubst %,$(dir.src.jni)/annotation/%,\
+  Experimental.java \
+  NotNull.java \
+  Nullable.java \
+) $(patsubst %,$(dir.src.capi)/%,\
+  AbstractCollationCallback.java \
+  AggregateFunction.java \
+  AuthorizerCallback.java \
+  AutoExtensionCallback.java \
+  BusyHandlerCallback.java \
+  CollationCallback.java \
+  CollationNeededCallback.java \
+  CommitHookCallback.java \
+  ConfigLogCallback.java \
+  ConfigSqlLogCallback.java \
+  NativePointerHolder.java \
+  OutputPointer.java \
+  PrepareMultiCallback.java \
+  PreupdateHookCallback.java \
+  ProgressHandlerCallback.java \
+  ResultCode.java \
+  RollbackHookCallback.java \
+  ScalarFunction.java \
+  SQLFunction.java \
+  CallbackProxy.java \
+  CApi.java \
+  TableColumnMetadata.java \
+  TraceV2Callback.java \
+  UpdateHookCallback.java \
+  ValueHolder.java \
+  WindowFunction.java \
+  XDestroyCallback.java \
+  sqlite3.java \
+  sqlite3_blob.java \
+  sqlite3_context.java \
+  sqlite3_stmt.java \
+  sqlite3_value.java \
+) $(patsubst %,$(dir.src.jni)/wrapper1/%,\
+  AggregateFunction.java \
+  ScalarFunction.java \
+  SqlFunction.java \
+  Sqlite.java \
+  SqliteException.java \
+  ValueHolder.java \
+  WindowFunction.java \
+)
+
+JAVA_FILES.unittest := $(patsubst %,$(dir.src.jni)/%,\
+  capi/Tester1.java \
+  wrapper1/Tester2.java \
+)
+ifeq (1,$(enable.fts5))
+  JAVA_FILES.unittest += $(patsubst %,$(dir.src.fts5)/%,\
+    TesterFts5.java \
+  )
+  JAVA_FILES.main += $(patsubst %,$(dir.src.fts5)/%,\
+    fts5_api.java \
+    fts5_extension_function.java \
+    fts5_tokenizer.java \
+    Fts5.java \
+    Fts5Context.java \
+    Fts5ExtensionApi.java \
+    Fts5PhraseIter.java \
+    Fts5Tokenizer.java \
+    XTokenizeCallback.java \
+  )
+endif
+JAVA_FILES.tester := $(SQLTester.java)
+JAVA_FILES.package.info := \
+  $(dir.src.jni)/package-info.java \
+  $(dir.src.jni)/annotation/package-info.java
+
+CLASS_FILES.main := $(JAVA_FILES.main:.java=.class)
+CLASS_FILES.unittest := $(JAVA_FILES.unittest:.java=.class)
+CLASS_FILES.tester := $(JAVA_FILES.tester:.java=.class)
+
+JAVA_FILES += $(JAVA_FILES.main) $(JAVA_FILES.unittest)
+ifeq (1,$(enable.tester))
+  JAVA_FILES += $(JAVA_FILES.tester)
+endif
+
+CLASS_FILES :=
+define CLASSFILE_DEPS
+all: $(1).class
+$(1).class: $(1).java
+CLASS_FILES += $(1).class
+endef
+$(foreach B,$(basename \
+  $(JAVA_FILES.main) $(JAVA_FILES.unittest) $(JAVA_FILES.tester)),\
+  $(eval $(call CLASSFILE_DEPS,$(B))))
+$(CLASS_FILES): $(MAKEFILE)
+	$(bin.javac) $(javac.flags) -h $(dir.bld.c) -cp $(classpath) $(JAVA_FILES)
+
+#.PHONY: classfiles
+
+########################################################################
+# Set up sqlite3.c and sqlite3.h...
+#
+# To build with SEE (https://sqlite.org/see), either put sqlite3-see.c
+# in the top of this build tree or pass
+# sqlite3.c=PATH_TO_sqlite3-see.c to the build. Note that only
+# encryption modules with no 3rd-party dependencies will currently
+# work here: AES256-OFB, AES128-OFB, and AES128-CCM. Not
+# coincidentally, those 3 modules are included in the sqlite3-see.c
+# bundle.
+#
+# A custom sqlite3.c must not have any spaces in its name.
+# $(sqlite3.canonical.c) must point to the sqlite3.c in
+# the sqlite3 canonical source tree, as that source file
+# is required for certain utility and test code.
+sqlite3.canonical.c := $(firstword $(wildcard $(dir.src.c)/sqlite3.c) $(dir.top)/sqlite3.c)
+sqlite3.canonical.h := $(firstword $(wildcard $(dir.src.c)/sqlite3.h) $(dir.top)/sqlite3.h)
+sqlite3.c := $(sqlite3.canonical.c)
+sqlite3.h := $(sqlite3.canonical.h)
+#ifeq (,$(shell grep sqlite3_activate_see $(sqlite3.c) 2>/dev/null))
+#  SQLITE_C_IS_SEE := 0
+#else
+#  SQLITE_C_IS_SEE := 1
+#  $(info This is an SEE build.)
+#endif
+
+.NOTPARALLEL: $(sqlite3.h)
+$(sqlite3.h):
+	$(MAKE) -C $(dir.top) sqlite3.c
+$(sqlite3.c): $(sqlite3.h)
+
+opt.threadsafe ?= 1
+opt.fatal-oom ?= 1
+opt.debug ?= 1
+opt.metrics ?= 1
+SQLITE_OPT = \
+  -DSQLITE_THREADSAFE=$(opt.threadsafe) \
+  -DSQLITE_TEMP_STORE=2 \
+  -DSQLITE_USE_URI=1 \
+  -DSQLITE_OMIT_LOAD_EXTENSION \
+  -DSQLITE_OMIT_DEPRECATED \
+  -DSQLITE_OMIT_SHARED_CACHE \
+  -DSQLITE_C=$(sqlite3.c) \
+  -DSQLITE_JNI_FATAL_OOM=$(opt.fatal-oom) \
+  -DSQLITE_JNI_ENABLE_METRICS=$(opt.metrics)
+
+opt.extras ?= 1
+ifeq (1,$(opt.extras))
+SQLITE_OPT += -DSQLITE_ENABLE_RTREE \
+  -DSQLITE_ENABLE_EXPLAIN_COMMENTS \
+  -DSQLITE_ENABLE_STMTVTAB \
+  -DSQLITE_ENABLE_DBPAGE_VTAB \
+  -DSQLITE_ENABLE_DBSTAT_VTAB \
+  -DSQLITE_ENABLE_BYTECODE_VTAB \
+  -DSQLITE_ENABLE_OFFSET_SQL_FUNC \
+  -DSQLITE_ENABLE_PREUPDATE_HOOK \
+  -DSQLITE_ENABLE_NORMALIZE \
+  -DSQLITE_ENABLE_SQLLOG \
+  -DSQLITE_ENABLE_COLUMN_METADATA
+endif
+
+ifeq (1,$(opt.debug))
+  SQLITE_OPT += -DSQLITE_DEBUG -g -DDEBUG -UNDEBUG
+else
+  SQLITE_OPT += -Os
+endif
+
+ifeq (1,$(enable.fts5))
+  SQLITE_OPT += -DSQLITE_ENABLE_FTS5
+endif
+
+sqlite3-jni.c := $(dir.src.c)/sqlite3-jni.c
+sqlite3-jni.o := $(dir.bld.c)/sqlite3-jni.o
+sqlite3-jni.h   := $(dir.src.c)/sqlite3-jni.h
+package.dll := $(dir.bld.c)/libsqlite3-jni.so
+# All javac-generated .h files must be listed in $(sqlite3-jni.h.in):
+sqlite3-jni.h.in :=
+# $(java.with.jni) lists all Java files which contain JNI decls:
+java.with.jni :=
+define ADD_JNI_H
+sqlite3-jni.h.in += $$(dir.bld.c)/org_sqlite_jni$(3)_$(2).h
+java.with.jni += $(1)/$(2).java
+$$(dir.bld.c)/org_sqlite_jni$(3)_$(2).h: $(1)/$(2).java
+endef
+# Invoke ADD_JNI_H once for each Java file which includes JNI
+# declarations:
+$(eval $(call ADD_JNI_H,$(dir.src.capi),CApi,_capi))
+$(eval $(call ADD_JNI_H,$(dir.src.capi),SQLTester,_capi))
+ifeq (1,$(enable.fts5))
+ $(eval $(call ADD_JNI_H,$(dir.src.fts5),Fts5ExtensionApi,_fts5))
+ $(eval $(call ADD_JNI_H,$(dir.src.fts5),fts5_api,_fts5))
+ $(eval $(call ADD_JNI_H,$(dir.src.fts5),fts5_tokenizer,_fts5))
+endif
+$(sqlite3-jni.h.in): $(dir.bld.c)
+
+#package.dll.cfiles :=
+package.dll.cflags = \
+  -std=c99 \
+  -fPIC \
+  -I. \
+  -I$(dir $(sqlite3.h)) \
+  -I$(dir.src.c) \
+  -I$(JDK_HOME)/include \
+  $(patsubst %,-I%,$(patsubst %.h,,$(wildcard $(JDK_HOME)/include/*))) \
+  -Wall
+# The gross $(patsubst...) above is to include the platform-specific
+# subdir which lives under $(JDK_HOME)/include and is a required
+# include path for client-level code.
+#
+# Using (-Wall -Wextra) triggers an untennable number of
+# gcc warnings from sqlite3.c for mundane things like
+# unused parameters.
+########################################################################
+ifeq (1,$(enable.tester))
+  package.dll.cflags += -DSQLITE_JNI_ENABLE_SQLTester
+endif
+
+$(sqlite3-jni.h): $(sqlite3-jni.h.in) $(MAKEFILE)
+	@cat $(sqlite3-jni.h.in) > $@.tmp
+	@if cmp $@ $@.tmp >/dev/null; then \
+		rm -f $@.tmp; \
+		echo "$@ not modified"; \
+	else \
+		mv $@.tmp $@; \
+		echo "Updated $@"; \
+	fi
+	@if [ x1 != x$(enable.fts5) ]; then \
+		echo "*** REMINDER:"; \
+		echo "*** enable.fts5=0, so please do not check in changes to $@."; \
+	fi
+
+$(package.dll): $(sqlite3-jni.h) $(sqlite3.c) $(sqlite3.h)
+$(package.dll): $(sqlite3-jni.c) $(MAKEFILE)
+	$(CC) $(package.dll.cflags) $(SQLITE_OPT) \
+			$(sqlite3-jni.c) -shared -o $@
+all: $(package.dll)
+
+.PHONY: test test-one
+Tester1.flags ?=
+Tester2.flags ?=
+test.flags.jvm = -ea -Djava.library.path=$(dir.bld.c) \
+                  $(java.flags) -cp $(classpath)
+test.deps := $(CLASS_FILES) $(package.dll)
+test-one: $(test.deps)
+	$(bin.java) $(test.flags.jvm) org.sqlite.jni.capi.Tester1 $(Tester1.flags)
+	$(bin.java) $(test.flags.jvm) org.sqlite.jni.wrapper1.Tester2 $(Tester2.flags)
+test-sqllog: $(test.deps)
+	@echo "Testing with -sqllog..."
+	$(bin.java) $(test.flags.jvm) org.sqlite.jni.capi.Tester1 $(Tester1.flags) -sqllog
+test-mt: $(test.deps)
+	@echo "Testing in multi-threaded mode:";
+	$(bin.java) $(test.flags.jvm) org.sqlite.jni.capi.Tester1 \
+    -t 7 -r 50 -shuffle $(Tester1.flags)
+	$(bin.java) $(test.flags.jvm) org.sqlite.jni.wrapper1.Tester2 \
+    -t 7 -r 50 -shuffle $(Tester2.flags)
+
+test: test-one test-mt
+tests: test test-sqllog
+
+tester.scripts := $(sort $(wildcard $(dir.src)/tests/*.test))
+tester.flags ?= # --verbose
+.PHONY: tester tester-local tester-ext
+ifeq (1,$(enable.tester))
+tester-local: $(CLASS_FILES.tester) $(package.dll)
+	$(bin.java) -ea -Djava.library.path=$(dir.bld.c) \
+		$(java.flags) -cp $(classpath) \
+		org.sqlite.jni.capi.SQLTester $(tester.flags) $(tester.scripts)
+tester: tester-local
+else
+tester:
+	@echo "SQLTester support is disabled."
+endif
+
+tester.extdir.default := $(dir.tests)/ext
+tester.extdir ?= $(tester.extdir.default)
+tester.extern-scripts := $(wildcard $(tester.extdir)/*.test)
+ifneq (,$(tester.extern-scripts))
+tester-ext:
+	$(bin.java) -ea -Djava.library.path=$(dir.bld.c) \
+		$(java.flags) -cp $(classpath) \
+		org.sqlite.jni.capi.SQLTester $(tester.flags) $(tester.extern-scripts)
+else
+tester-ext:
+	@echo "******************************************************"; \
+		echo "*** Include the out-of-tree test suite in the 'tester'"; \
+		echo "*** target by either symlinking its directory to"; \
+		echo "*** $(tester.extdir.default) or passing it to make"; \
+		echo "*** as tester.extdir=/path/to/that/dir."; \
+		echo "******************************************************";
+endif
+
+tester-ext: tester-local
+tester: tester-ext
+tests: tester
+########################################################################
+# Build each SQLITE_THREADMODE variant and run all tests against them.
+multitest: clean
+define MULTIOPT
+multitest: multitest-$(1)
+multitest-$(1):
+	$$(MAKE) opt.debug=$$(opt.debug) $(patsubst %,opt.%,$(2)) \
+		tests clean enable.fts5=1
+endef
+
+$(eval $(call MULTIOPT,01,threadsafe=0 oom=1))
+$(eval $(call MULTIOPT,00,threadsafe=0 oom=0))
+$(eval $(call MULTIOPT,11,threadsafe=1 oom=1))
+$(eval $(call MULTIOPT,10,threadsafe=1 oom=0))
+$(eval $(call MULTIOPT,21,threadsafe=2 oom=1))
+$(eval $(call MULTIOPT,20,threadsafe=2 oom=0))
+
+
+########################################################################
+# jar bundle...
+package.jar.in := $(abspath $(dir.src)/jar.in)
+CLEAN_FILES += $(package.jar.in)
+JAVA_FILES.jar := $(JAVA_FILES.main) $(JAVA_FILES.unittest) $(JAVA_FILES.package.info)
+CLASS_FILES.jar := $(filter-out %/package-info.class,$(JAVA_FILES.jar:.java=.class))
+$(package.jar.in): $(package.dll) $(MAKEFILE)
+	ls -1 \
+		$(dir.src.jni)/*/*.java $(dir.src.jni)/*/*.class \
+	| sed -e 's,^$(dir.src)/,,' | sort > $@
+
+$(package.jar): $(CLASS_FILES.jar) $(MAKEFILE) $(package.jar.in)
+	@rm -f $(dir.src)/c/*~ $(dir.src.jni)/*~
+	cd $(dir.src); $(bin.jar) -cfe ../$@ org.sqlite.jni.capi.Tester1 @$(package.jar.in)
+	@ls -la $@
+	@echo "To use this jar you will need the -Djava.library.path=DIR/CONTAINING/libsqlite3-jni.so flag."
+	@echo "e.g. java -Djava.library.path=bld -jar $@"
+
+jar: $(package.jar)
+run-jar: $(package.jar) $(package.dll)
+	$(bin.java) -Djava.library.path=$(dir.bld) -jar $(package.jar) $(run-jar.flags)
+
+########################################################################
+# javadoc...
+dir.doc   := $(dir.jni)/javadoc
+doc.index := $(dir.doc)/index.html
+javadoc.exclude := -exclude org.sqlite.jni.fts5
+# ^^^^ 2023-09-13: elide the fts5 parts from the public docs for
+# the time being, as it's not clear where the Java bindings for
+# those bits are going.
+# javadoc.exclude += -exclude org.sqlite.jni.capi
+# ^^^^ exclude the capi API only for certain builds (TBD)
+$(doc.index): $(JAVA_FILES.main) $(MAKEFILE)
+	@if [ -d $(dir.doc) ]; then rm -fr $(dir.doc)/*; fi
+	$(bin.javadoc) -cp $(classpath) -d $(dir.doc) -quiet \
+		-subpackages org.sqlite.jni $(javadoc.exclude)
+	@echo "javadoc output is in $@"
+
+.PHONY: doc javadoc docserve
+.FORCE: doc
+doc: $(doc.index)
+javadoc: $(doc.index)
+# Force rebild of docs
+redoc:
+	@rm -f $(doc.index)
+	@$(MAKE) doc
+docserve: $(doc.index)
+	cd $(dir.doc) && althttpd -max-age 1 -page index.html
+########################################################################
+# Clean up...
+CLEAN_FILES += $(dir.bld.c)/* \
+  $(dir.src.jni)/*.class \
+  $(dir.src.jni)/*/*.class \
+  $(package.dll) \
+  hs_err_pid*.log
+
+.PHONY: clean distclean
+clean:
+	-rm -f $(CLEAN_FILES)
+distclean: clean
+	-rm -f $(DISTCLEAN_FILES)
+	-rm -fr $(dir.bld.c) $(dir.doc)
+
+########################################################################
+# disttribution bundle rules...
+
+ifeq (,$(filter snapshot,$(MAKECMDGOALS)))
+dist-name-prefix := sqlite-jni
+else
+dist-name-prefix := sqlite-jni-snapshot-$(shell /usr/bin/date +%Y%m%d)
+endif
+dist-name := $(dist-name-prefix)-TEMP
+
+
+dist-dir.top := $(dist-name)
+dist-dir.src := $(dist-dir.top)/src
+dist.top.extras := \
+  README.md
+
+.PHONY: dist snapshot
+
+dist: \
+    $(bin.version-info) $(sqlite3.canonical.c) \
+    $(package.jar) $(MAKEFILE)
+	@echo "Making end-user deliverables..."
+	@echo "****************************************************************************"; \
+	echo  "*** WARNING: be sure to build this with JDK8 (javac 1.8) for compatibility."; \
+	echo  "*** reasons!"; $$($(bin.javac) -version); \
+	echo  "****************************************************************************"
+	@rm -fr $(dist-dir.top)
+	@mkdir -p $(dist-dir.src)
+	@cp -p $(dist.top.extras) $(dist-dir.top)/.
+	@cp -p jar-dist.make $(dist-dir.top)/Makefile
+	@cp -p $(dir.src.c)/*.[ch] $(dist-dir.src)/.
+	@cp -p $(sqlite3.canonical.c) $(sqlite3.canonical.h) $(dist-dir.src)/.
+	@set -e; \
+		vnum=$$($(bin.version-info) --download-version); \
+		vjar=$$($(bin.version-info) --version); \
+		vdir=$(dist-name-prefix)-$$vnum; \
+		arczip=$$vdir.zip; \
+		cp -p $(package.jar) $(dist-dir.top)/sqlite3-jni-$${vjar}.jar; \
+		echo "Making $$arczip ..."; \
+		rm -fr $$arczip $$vdir; \
+		mv $(dist-dir.top) $$vdir; \
+		zip -qr $$arczip $$vdir; \
+		rm -fr $$vdir; \
+		ls -la $$arczip; \
+		set +e; \
+		unzip -lv $$arczip || echo "Missing unzip app? Not fatal."
+
+snapshot: dist
+
+.PHONY: dist-clean
+clean: dist-clean
+dist-clean:
+	rm -fr $(dist-name) $(wildcard sqlite-jni-*.zip)
diff --git a/ext/jni/README.md b/ext/jni/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..fc7b5f761195d39412e0bb6045e6e8cb3840b4f8
--- /dev/null
+++ b/ext/jni/README.md
@@ -0,0 +1,316 @@
+SQLite3 via JNI
+========================================================================
+
+This directory houses a Java Native Interface (JNI) binding for the
+sqlite3 API. If you are reading this from the distribution ZIP file,
+links to resources in the canonical source tree will note work. The
+canonical copy of this file can be browsed at:
+
+  <https://sqlite.org/src/doc/trunk/ext/jni/README.md>
+
+Technical support is available in the forum:
+
+  <https://sqlite.org/forum>
+
+
+> **FOREWARNING:** this subproject is very much in development and
+  subject to any number of changes. Please do not rely on any
+  information about its API until this disclaimer is removed.  The JNI
+  bindings released with version 3.43 are a "tech preview." Once
+  finalized, strong backward compatibility guarantees will apply.
+
+Project goals/requirements:
+
+- A [1-to-1(-ish) mapping of the C API](#1to1ish) to Java via JNI,
+  insofar as cross-language semantics allow for. A closely-related
+  goal is that [the C documentation](https://sqlite.org/c3ref/intro.html)
+  should be usable as-is, insofar as possible, for the JNI binding.
+
+- Support Java as far back as version 8 (2014).
+
+- Environment-independent. Should work everywhere both Java
+  and SQLite3 do.
+
+- No 3rd-party dependencies beyond the JDK. That includes no
+  build-level dependencies for specific IDEs and toolchains.  We
+  welcome the addition of build files for arbitrary environments
+  insofar as they neither interfere with each other nor become
+  a maintenance burden for the sqlite developers.
+
+Non-goals:
+
+- Creation of high-level OO wrapper APIs. Clients are free to create
+  them off of the C-style API.
+
+- Virtual tables are unlikely to be supported due to the amount of
+  glue code needed to fit them into Java.
+
+- Support for mixed-mode operation, where client code accesses SQLite
+  both via the Java-side API and the C API via their own native
+  code. Such cases would be a minefield of potential mis-interactions
+  between this project's JNI bindings and mixed-mode client code.
+
+
+Hello World
+-----------------------------------------------------------------------
+
+```java
+import org.sqlite.jni.*;
+import static org.sqlite.jni.CApi.*;
+
+...
+
+final sqlite3 db = sqlite3_open(":memory:");
+try {
+  final int rc = sqlite3_errcode(db);
+  if( 0 != rc ){
+    if( null != db ){
+      System.out.print("Error opening db: "+sqlite3_errmsg(db));
+    }else{
+      System.out.print("Error opening db: rc="+rc);
+    }
+    ... handle error ...
+  }
+  // ... else use the db ...
+}finally{
+  // ALWAYS close databases using sqlite3_close() or sqlite3_close_v2()
+  // when done with them. All of their active statement handles must
+  // first have been passed to sqlite3_finalize().
+  sqlite3_close_v2(db);
+}
+```
+
+
+Building
+========================================================================
+
+The canonical builds assumes a Linux-like environment and requires:
+
+- GNU Make
+- A JDK supporting Java 8 or higher
+- A modern C compiler. gcc and clang should both work.
+
+Put simply:
+
+```console
+$ export JAVA_HOME=/path/to/jdk/root
+$ make
+$ make test
+$ make clean
+```
+
+The jar distribution can be created with `make jar`, but note that it
+does not contain the binary DLL file. A different DLL is needed for
+each target platform.
+
+
+<a id='1to1ish'></a>
+One-to-One(-ish) Mapping to C
+========================================================================
+
+This JNI binding aims to provide as close to a 1-to-1 experience with
+the C API as cross-language semantics allow. Interface changes are
+necessarily made where cross-language semantics do not allow a 1-to-1,
+and judiciously made where a 1-to-1 mapping would be unduly cumbersome
+to use in Java. In all cases, this binding makes every effort to
+provide semantics compatible with the C API documentation even if the
+interface to those semantics is slightly different.  Any cases which
+deviate from those semantics (either removing or adding semantics) are
+clearly documented.
+
+Where it makes sense to do so for usability, Java-side overloads are
+provided which accept or return data in alternative forms or provide
+sensible default argument values. In all such cases they are thin
+proxies around the corresponding C APIs and do not introduce new
+semantics.
+
+In a few cases, Java-specific capabilities have been added in
+new APIs, all of which have "_java" somewhere in their names.
+Examples include:
+
+- `sqlite3_result_java_object()`
+- `sqlite3_column_java_object()`
+- `sqlite3_value_java_object()`
+
+which, as one might surmise, collectively enable the passing of
+arbitrary Java objects from user-defined SQL functions through to the
+caller.
+
+
+Golden Rule: Garbage Collection Cannot Free SQLite Resources
+------------------------------------------------------------------------
+
+It is important that all databases and prepared statement handles get
+cleaned up by client code. A database cannot be closed if it has open
+statement handles. `sqlite3_close()` fails if the db cannot be closed
+whereas `sqlite3_close_v2()` recognizes that case and marks the db as
+a "zombie," pending finalization when the library detects that all
+pending statements have been closed. Be aware that Java garbage
+collection _cannot_ close a database or finalize a prepared statement.
+Those things require explicit API calls.
+
+Classes for which it is sensible support Java's `AutoCloseable`
+interface so can be used with try-with-resources constructs.
+
+
+Golden Rule #2: _Never_ Throw from Callbacks (Unless...)
+------------------------------------------------------------------------
+
+All routines in this API, barring explicitly documented exceptions,
+retain C-like semantics. For example, they are not permitted to throw
+or propagate exceptions and must return error information (if any) via
+result codes or `null`. The only cases where the C-style APIs may
+throw is through client-side misuse, e.g. passing in a null where it
+may cause a `NullPointerException`. The APIs clearly mark function
+parameters which should not be null, but does not generally actively
+defend itself against such misuse. Some C-style APIs explicitly accept
+`null` as a no-op for usability's sake, and some of the JNI APIs
+deliberately return an error code, instead of segfaulting, when passed
+a `null`.
+
+Client-defined callbacks _must never throw exceptions_ unless _very
+explitly documented_ as being throw-safe. Exceptions are generally
+reserved for higher-level bindings which are constructed to
+specifically deal with them and ensure that they do not leak C-level
+resources. In some cases, callback handlers are permitted to throw, in
+which cases they get translated to C-level result codes and/or
+messages. If a callback which is not permitted to throw throws, its
+exception may trigger debug output but will otherwise be suppressed.
+
+The reason some callbacks are permitted to throw and others not is
+because all such callbacks act as proxies for C function callback
+interfaces and some of those interfaces have no error-reporting
+mechanism. Those which are capable of propagating errors back through
+the library convert exceptions from callbacks into corresponding
+C-level error information. Those which cannot propagate errors
+necessarily suppress any exceptions in order to maintain the C-style
+semantics of the APIs.
+
+
+Unwieldy Constructs are Re-mapped
+------------------------------------------------------------------------
+
+Some constructs, when modelled 1-to-1 from C to Java, are unduly
+clumsy to work with in Java because they try to shoehorn C's way of
+doing certain things into Java's wildly different ways. The following
+subsections cover those, starting with a verbose explanation and
+demonstration of where such changes are "really necessary"...
+
+### Custom Collations
+
+A prime example of where interface changes for Java are necessary for
+usability is [registration of a custom
+collation](https://sqlite.org/c3ref/create_collation.html):
+
+```c
+// C:
+int sqlite3_create_collation(sqlite3 * db, const char * name, int eTextRep,
+                             void *pUserData,
+                             int (*xCompare)(void*,int,void const *,int,void const *));
+
+int sqlite3_create_collation_v2(sqlite3 * db, const char * name, int eTextRep,
+                                void *pUserData,
+                                int (*xCompare)(void*,int,void const *,int,void const *),
+                                void (*xDestroy)(void*));
+```
+
+The `pUserData` object is optional client-defined state for the
+`xCompare()` and/or `xDestroy()` callback functions, both of which are
+passed that object as their first argument. That data is passed around
+"externally" in C because that's how C models the world. If we were to
+bind that part as-is to Java, the result would be awkward to use (^Yes,
+we tried this.):
+
+```java
+// Java:
+int sqlite3_create_collation(sqlite3 db, String name, int eTextRep,
+                             Object pUserData, xCompareType xCompare);
+
+int sqlite3_create_collation_v2(sqlite3 db, String name, int eTextRep,
+                                Object pUserData,
+                                xCompareType xCompare, xDestroyType xDestroy);
+```
+
+The awkwardness comes from (A) having two distinctly different objects
+for callbacks and (B) having their internal state provided separately,
+which is ill-fitting in Java. For the sake of usability, C APIs which
+follow that pattern use a slightly different Java interface:
+
+```java
+int sqlite3_create_collation(sqlite3 db, String name, int eTextRep,
+                             SomeCallbackType collation);
+```
+
+Where the `Collation` class has an abstract `call()` method and
+no-op `xDestroy()` method which can be overridden if needed, leading to
+a much more Java-esque usage:
+
+```java
+int rc = sqlite3_create_collation(db, "mycollation", SQLITE_UTF8, new SomeCallbackType(){
+
+  // Required comparison function:
+  @Override public int call(byte[] lhs, byte[] rhs){ ... }
+
+  // Optional finalizer function:
+  @Override public void xDestroy(){ ... }
+
+  // Optional local state:
+  private String localState1 =
+    "This is local state. There are many like it, but this one is mine.";
+  private MyStateType localState2 = new MyStateType();
+  ...
+});
+```
+
+Noting that:
+
+- It is possible to bind in call-scope-local state via closures, if
+  desired, as opposed to packing it into the Collation object.
+
+- No capabilities of the C API are lost or unduly obscured via the
+  above API reshaping, so power users need not make any compromises.
+
+- In the specific example above, `sqlite3_create_collation_v2()`
+  becomes superfluous because the provided interface effectively
+  provides both the v1 and v2 interfaces, the difference being that
+  overriding the `xDestroy()` method effectively gives it v2
+  semantics.
+
+
+### User-defined SQL Functions (a.k.a. UDFs)
+
+The [`sqlite3_create_function()`](https://sqlite.org/c3ref/create_function.html)
+family of APIs make heavy use of function pointers to provide
+client-defined callbacks, necessitating interface changes in the JNI
+binding. The Java API has only one core function-registration function:
+
+```java
+int sqlite3_create_function(sqlite3 db, String funcName, int nArgs,
+                            int encoding, SQLFunction func);
+```
+
+> Design question: does the encoding argument serve any purpose in
+  Java? That's as-yet undetermined. If not, it will be removed.
+
+`SQLFunction` is not used directly, but is instead instantiated via
+one of its three subclasses:
+
+- `ScalarFunction` implements simple scalar functions using but a
+  single callback.
+- `AggregateFunction` implements aggregate functions using two
+  callbacks.
+- `WindowFunction` implements window functions using four
+  callbacks.
+
+Search [`Tester1.java`](/file/ext/jni/src/org/sqlite/jni/capi/Tester1.java) for
+`SQLFunction` for how it's used.
+
+Reminder: see the disclaimer at the top of this document regarding the
+in-flux nature of this API.
+
+### And so on...
+
+Various APIs which accept callbacks, e.g. `sqlite3_trace_v2()` and
+`sqlite3_update_hook()`, use interfaces similar to those shown above.
+Despite the changes in signature, the JNI layer makes every effort to
+provide the same semantics as the C API documentation suggests.
diff --git a/ext/jni/jar-dist.make b/ext/jni/jar-dist.make
new file mode 100644
index 0000000000000000000000000000000000000000..7596c99f3f8aa2be92abf5317beb4293ffc89857
--- /dev/null
+++ b/ext/jni/jar-dist.make
@@ -0,0 +1,60 @@
+#!/this/is/make
+#^^^^ help emacs out
+#
+# This is a POSIX-make-compatible makefile for building the sqlite3
+# JNI library from "dist" zip file. It must be edited to set the
+# proper top-level JDK directory and, depending on the platform, add a
+# platform-specific -I directory. It should build as-is with any
+# 2020s-era version of gcc or clang. It requires JDK version 8 or
+# higher and that JAVA_HOME points to the top-most installation
+# directory of that JDK. On Ubuntu-style systems the JDK is typically
+# installed under /usr/lib/jvm/java-VERSION-PLATFORM.
+
+default: all
+
+JAVA_HOME = /usr/lib/jvm/java-1.8.0-openjdk-amd64
+CFLAGS = \
+  -fPIC \
+  -Isrc \
+  -I$(JAVA_HOME)/include \
+  -I$(JAVA_HOME)/include/linux \
+  -I$(JAVA_HOME)/include/apple \
+  -I$(JAVA_HOME)/include/bsd \
+  -Wall
+
+SQLITE_OPT = \
+  -DSQLITE_ENABLE_RTREE \
+  -DSQLITE_ENABLE_EXPLAIN_COMMENTS \
+  -DSQLITE_ENABLE_STMTVTAB \
+  -DSQLITE_ENABLE_DBPAGE_VTAB \
+  -DSQLITE_ENABLE_DBSTAT_VTAB \
+  -DSQLITE_ENABLE_BYTECODE_VTAB \
+  -DSQLITE_ENABLE_OFFSET_SQL_FUNC \
+  -DSQLITE_OMIT_LOAD_EXTENSION \
+  -DSQLITE_OMIT_DEPRECATED \
+  -DSQLITE_OMIT_SHARED_CACHE \
+  -DSQLITE_THREADSAFE=1 \
+  -DSQLITE_TEMP_STORE=2 \
+  -DSQLITE_USE_URI=1 \
+  -DSQLITE_ENABLE_FTS5 \
+  -DSQLITE_DEBUG
+
+sqlite3-jni.dll = libsqlite3-jni.so
+$(sqlite3-jni.dll):
+	@echo "************************************************************************"; \
+	echo  "*** If this fails to build, be sure to edit this makefile            ***"; \
+	echo  "*** to configure it for your system.                                 ***"; \
+	echo  "************************************************************************"
+	$(CC) $(CFLAGS) $(SQLITE_OPT) \
+		src/sqlite3-jni.c -shared -o $@
+	@echo "Now try running it with: make test"
+
+test.flags = -Djava.library.path=. sqlite3-jni-*.jar
+test: $(sqlite3-jni.dll)
+	java -jar $(test.flags)
+	java -jar $(test.flags) -t 7 -r 10 -shuffle
+
+clean:
+	-rm -f $(sqlite3-jni.dll)
+
+all: $(sqlite3-jni.dll)
diff --git a/ext/jni/src/c/sqlite3-jni.c b/ext/jni/src/c/sqlite3-jni.c
new file mode 100644
index 0000000000000000000000000000000000000000..5deff19ef1fd5e668a12f73640bd0eb4eed07605
--- /dev/null
+++ b/ext/jni/src/c/sqlite3-jni.c
@@ -0,0 +1,6343 @@
+/*
+** 2023-07-21
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file implements the JNI bindings declared in
+** org.sqlite.jni.capi.CApi (from which sqlite3-jni.h is generated).
+*/
+
+/*
+** If you found this comment by searching the code for
+** CallStaticObjectMethod because it appears in console output then
+** you're probably the victim of an OpenJDK bug:
+**
+** https://bugs.openjdk.org/browse/JDK-8130659
+**
+** It's known to happen with OpenJDK v8 but not with v19. It was
+** triggered by this code long before it made any use of
+** CallStaticObjectMethod().
+*/
+
+/*
+** Define any SQLITE_... config defaults we want if they aren't
+** overridden by the builder. Please keep these alphabetized.
+*/
+
+/**********************************************************************/
+/* SQLITE_D... */
+#ifndef SQLITE_DEFAULT_CACHE_SIZE
+# define SQLITE_DEFAULT_CACHE_SIZE -16384
+#endif
+#if !defined(SQLITE_DEFAULT_PAGE_SIZE)
+# define SQLITE_DEFAULT_PAGE_SIZE 8192
+#endif
+#ifndef SQLITE_DQS
+#  define SQLITE_DQS 0
+#endif
+
+/**********************************************************************/
+/* SQLITE_ENABLE_... */
+/*
+** Unconditionally enable API_ARMOR in the JNI build. It ensures that
+** public APIs behave predictable in the face of passing illegal NULLs
+** or ranges which might otherwise invoke undefined behavior.
+*/
+#undef SQLITE_ENABLE_API_ARMOR
+#define SQLITE_ENABLE_API_ARMOR 1
+
+#ifndef SQLITE_ENABLE_BYTECODE_VTAB
+#  define SQLITE_ENABLE_BYTECODE_VTAB 1
+#endif
+#ifndef SQLITE_ENABLE_DBPAGE_VTAB
+#  define SQLITE_ENABLE_DBPAGE_VTAB 1
+#endif
+#ifndef SQLITE_ENABLE_DBSTAT_VTAB
+#  define SQLITE_ENABLE_DBSTAT_VTAB 1
+#endif
+#ifndef SQLITE_ENABLE_EXPLAIN_COMMENTS
+#  define SQLITE_ENABLE_EXPLAIN_COMMENTS 1
+#endif
+#ifndef SQLITE_ENABLE_MATH_FUNCTIONS
+#  define SQLITE_ENABLE_MATH_FUNCTIONS 1
+#endif
+#ifndef SQLITE_ENABLE_OFFSET_SQL_FUNC
+#  define SQLITE_ENABLE_OFFSET_SQL_FUNC 1
+#endif
+#ifndef SQLITE_ENABLE_RTREE
+#  define SQLITE_ENABLE_RTREE 1
+#endif
+//#ifndef SQLITE_ENABLE_SESSION
+//#  define SQLITE_ENABLE_SESSION 1
+//#endif
+#ifndef SQLITE_ENABLE_STMTVTAB
+#  define SQLITE_ENABLE_STMTVTAB 1
+#endif
+//#ifndef SQLITE_ENABLE_UNKNOWN_SQL_FUNCTION
+//#  define SQLITE_ENABLE_UNKNOWN_SQL_FUNCTION
+//#endif
+
+/**********************************************************************/
+/* SQLITE_J... */
+#ifdef SQLITE_JNI_FATAL_OOM
+#if !SQLITE_JNI_FATAL_OOM
+#undef SQLITE_JNI_FATAL_OOM
+#endif
+#endif
+
+/**********************************************************************/
+/* SQLITE_O... */
+#ifndef SQLITE_OMIT_DEPRECATED
+# define SQLITE_OMIT_DEPRECATED 1
+#endif
+#ifndef SQLITE_OMIT_LOAD_EXTENSION
+# define SQLITE_OMIT_LOAD_EXTENSION 1
+#endif
+#ifndef SQLITE_OMIT_SHARED_CACHE
+# define SQLITE_OMIT_SHARED_CACHE 1
+#endif
+#ifdef SQLITE_OMIT_UTF16
+/* UTF16 is required for java */
+# undef SQLITE_OMIT_UTF16 1
+#endif
+
+/**********************************************************************/
+/* SQLITE_S... */
+#ifndef SQLITE_STRICT_SUBTYPE
+# define SQLITE_STRICT_SUBTYPE 1
+#endif
+
+/**********************************************************************/
+/* SQLITE_T... */
+#ifndef SQLITE_TEMP_STORE
+# define SQLITE_TEMP_STORE 2
+#endif
+#ifndef SQLITE_THREADSAFE
+# define SQLITE_THREADSAFE 1
+#endif
+
+/**********************************************************************/
+/* SQLITE_USE_... */
+#ifndef SQLITE_USE_URI
+#  define SQLITE_USE_URI 1
+#endif
+
+
+/*
+** Which sqlite3.c we're using needs to be configurable to enable
+** building against a custom copy, e.g. the SEE variant. We have to
+** include sqlite3.c, as opposed to sqlite3.h, in order to get access
+** to some interal details like SQLITE_MAX_... and friends. This
+** increases the rebuild time considerably but we need this in order
+** to access some internal functionality and keep the to-Java-exported
+** values of SQLITE_MAX_... and SQLITE_LIMIT_... in sync with the C
+** build.
+*/
+#ifndef SQLITE_C
+# define SQLITE_C sqlite3.c
+#endif
+#define INC__STRINGIFY_(f) #f
+#define INC__STRINGIFY(f) INC__STRINGIFY_(f)
+#include INC__STRINGIFY(SQLITE_C)
+#undef INC__STRINGIFY_
+#undef INC__STRINGIFY
+#undef SQLITE_C
+
+/*
+** End of the sqlite3 lib setup. What follows is JNI-specific.
+*/
+
+#include "sqlite3-jni.h"
+#include <assert.h>
+#include <stdio.h> /* only for testing/debugging */
+#include <stdint.h> /* intptr_t for 32-bit builds */
+
+/* Only for debugging */
+#define MARKER(pfexp)                                               \
+  do{ printf("MARKER: %s:%d:%s():\t",__FILE__,__LINE__,__func__);   \
+    printf pfexp;                                                   \
+  } while(0)
+
+/*
+** Creates a verbose JNI function name. Suffix must be
+** the JNI-mangled form of the function's name, minus the
+** prefix seen in this macro.
+*/
+#define JniFuncName(Suffix) \
+  Java_org_sqlite_jni_capi_CApi_sqlite3_ ## Suffix
+
+/* Prologue for JNI function declarations and definitions. */
+#define JniDecl(ReturnType,Suffix) \
+  JNIEXPORT ReturnType JNICALL JniFuncName(Suffix)
+
+/*
+** S3JniApi's intent is that CFunc be the C API func(s) the
+** being-declared JNI function is wrapping, making it easier to find
+** that function's JNI-side entry point. The other args are for JniDecl.
+** See the many examples in this file.
+*/
+#define S3JniApi(CFunc,ReturnType,Suffix) JniDecl(ReturnType,Suffix)
+
+/*
+** S3JniCast_L2P and P2L cast jlong (64-bit) to/from pointers. This is
+** required for casting warning-free on 32-bit builds, where we
+** otherwise get complaints that we're casting between different-sized
+** int types.
+**
+** This use of intptr_t is the _only_ reason we require <stdint.h>
+** which, in turn, requires building with -std=c99 (or later).
+**
+** See also: the notes for LongPtrGet_T.
+*/
+#define S3JniCast_L2P(JLongAsPtr) (void*)((intptr_t)(JLongAsPtr))
+#define S3JniCast_P2L(PTR) (jlong)((intptr_t)(PTR))
+
+/*
+** Shortcuts for the first 2 parameters to all JNI bindings.
+**
+** The type of the jSelf arg differs, but no docs seem to mention
+** this: for static methods it's of type jclass and for non-static
+** it's jobject. jobject actually works for all funcs, in the sense
+** that it compiles and runs so long as we don't use jSelf (which is
+** only rarely needed in this code), but to be pedantically correct we
+** need the proper type in the signature.
+**
+** https://docs.oracle.com/javase/8/docs/technotes/guides/jni/spec/design.html#jni_interface_functions_and_pointers
+*/
+#define JniArgsEnvObj JNIEnv * env, jobject jSelf
+#define JniArgsEnvClass JNIEnv * env, jclass jKlazz
+/*
+** Helpers to account for -Xcheck:jni warnings about not having
+** checked for exceptions.
+*/
+#define S3JniIfThrew if( (*env)->ExceptionCheck(env) )
+#define S3JniExceptionClear (*env)->ExceptionClear(env)
+#define S3JniExceptionReport (*env)->ExceptionDescribe(env)
+#define S3JniExceptionIgnore S3JniIfThrew S3JniExceptionClear
+#define S3JniExceptionWarnIgnore \
+  S3JniIfThrew {S3JniExceptionReport; S3JniExceptionClear;}(void)0
+#define S3JniExceptionWarnCallbackThrew(STR)             \
+  MARKER(("WARNING: " STR " MUST NOT THROW.\n"));  \
+  (*env)->ExceptionDescribe(env)
+
+/** To be used for cases where we're _really_ not expecting an
+    exception, e.g. looking up well-defined Java class members. */
+#define S3JniExceptionIsFatal(MSG) S3JniIfThrew {\
+    S3JniExceptionReport; S3JniExceptionClear; \
+    (*env)->FatalError(env, MSG); \
+  }
+
+/*
+** Declares local var env = s3jni_env(). All JNI calls involve a
+** JNIEnv somewhere, always named env, and many of our macros assume
+** env is in scope. Where it's not, but should be, use this to make it
+** so.
+*/
+#define S3JniDeclLocal_env JNIEnv * const env = s3jni_env()
+
+/* Fail fatally with an OOM message. */
+static inline void s3jni_oom(JNIEnv * const env){
+  (*env)->FatalError(env, "SQLite3 JNI is out of memory.") /* does not return */;
+}
+
+/*
+** sqlite3_malloc() proxy which fails fatally on OOM.  This should
+** only be used for routines which manage global state and have no
+** recovery strategy for OOM. For sqlite3 API which can reasonably
+** return SQLITE_NOMEM, s3jni_malloc() should be used instead.
+*/
+static void * s3jni_malloc_or_die(JNIEnv * const env, size_t n){
+  void * const rv = sqlite3_malloc(n);
+  if( n && !rv ) s3jni_oom(env);
+  return rv;
+}
+
+/*
+** Works like sqlite3_malloc() unless built with SQLITE_JNI_FATAL_OOM,
+** in which case it calls s3jni_oom() on OOM.
+*/
+#ifdef SQLITE_JNI_FATAL_OOM
+#define s3jni_malloc(SIZE) s3jni_malloc_or_die(env, SIZE)
+#else
+#define s3jni_malloc(SIZE) sqlite3_malloc(((void)env,(SIZE)))
+/* the ((void)env) trickery here is to avoid ^^^^^^ an otherwise
+   unused arg in at least one place. */
+#endif
+
+/*
+** Works like sqlite3_realloc() unless built with SQLITE_JNI_FATAL_OOM,
+** in which case it calls s3jni_oom() on OOM.
+*/
+#ifdef SQLITE_JNI_FATAL_OOM
+static void * s3jni_realloc_or_die(JNIEnv * const env, void * p, size_t n){
+  void * const rv = sqlite3_realloc(p, (int)n);
+  if( n && !rv ) s3jni_oom(env);
+  return rv;
+}
+#define s3jni_realloc(MEM,SIZE) s3jni_realloc_or_die(env, (MEM), (SIZE))
+#else
+#define s3jni_realloc(MEM,SIZE) sqlite3_realloc((MEM), ((void)env, (SIZE)))
+#endif
+
+/* Fail fatally if !EXPR. */
+#define s3jni_oom_fatal(EXPR) if( !(EXPR) ) s3jni_oom(env)
+/* Maybe fail fatally if !EXPR. */
+#ifdef SQLITE_JNI_FATAL_OOM
+#define s3jni_oom_check s3jni_oom_fatal
+#else
+#define s3jni_oom_check(EXPR)
+#endif
+//#define S3JniDb_oom(pDb,EXPR) ((EXPR) ? sqlite3OomFault(pDb) : 0)
+
+#define s3jni_db_oom(pDb) (void)((pDb) ? ((pDb)->mallocFailed=1) : 0)
+
+/* Helpers for Java value reference management. */
+static jobject s3jni_ref_global(JNIEnv * const env, jobject const v){
+  jobject const rv = v ? (*env)->NewGlobalRef(env, v) : NULL;
+  s3jni_oom_fatal( v ? !!rv : 1 );
+  return rv;
+}
+static jobject s3jni_ref_local(JNIEnv * const env, jobject const v){
+  jobject const rv = v ? (*env)->NewLocalRef(env, v) : NULL;
+  s3jni_oom_fatal( v ? !!rv : 1 );
+  return rv;
+}
+static inline void s3jni_unref_global(JNIEnv * const env, jobject const v){
+  if( v ) (*env)->DeleteGlobalRef(env, v);
+}
+static inline void s3jni_unref_local(JNIEnv * const env, jobject const v){
+  if( v ) (*env)->DeleteLocalRef(env, v);
+}
+#define S3JniRefGlobal(VAR) s3jni_ref_global(env, (VAR))
+#define S3JniRefLocal(VAR) s3jni_ref_local(env, (VAR))
+#define S3JniUnrefGlobal(VAR) s3jni_unref_global(env, (VAR))
+#define S3JniUnrefLocal(VAR) s3jni_unref_local(env, (VAR))
+
+/*
+** Lookup key type for use with s3jni_nphop() and a cache of a
+** frequently-needed Java-side class reference and one or two Java
+** class member IDs.
+*/
+typedef struct S3JniNphOp S3JniNphOp;
+struct S3JniNphOp {
+  const int index             /* index into S3JniGlobal.nph[] */;
+  const char * const zName    /* Full Java name of the class */;
+  const char * const zMember  /* Name of member property */;
+  const char * const zTypeSig /* JNI type signature of zMember */;
+  /*
+  ** klazz is a global ref to the class represented by pRef.
+  **
+  ** According to:
+  **
+  **   https://developer.ibm.com/articles/j-jni/
+  **
+  ** > ... the IDs returned for a given class don't change for the
+  **   lifetime of the JVM process. But the call to get the field or
+  **   method can require significant work in the JVM, because fields
+  **   and methods might have been inherited from superclasses, making
+  **   the JVM walk up the class hierarchy to find them. Because the
+  **   IDs are the same for a given class, you should look them up
+  **   once and then reuse them. Similarly, looking up class objects
+  **   can be expensive, so they should be cached as well.
+  */
+  jclass klazz;
+  volatile jfieldID fidValue  /* NativePointerHolder.nativePointer or
+                              ** OutputPointer.T.value */;
+  volatile jmethodID midCtor  /* klazz's no-arg constructor. Used by
+                              ** NativePointerHolder_new(). */;
+};
+
+/*
+** Cache keys for each concrete NativePointerHolder subclasses and
+** OutputPointer.T types. The members are to be used with s3jni_nphop()
+** and friends, and each one's member->index corresponds to its index
+** in the S3JniGlobal.nph[] array.
+*/
+static const struct {
+  const S3JniNphOp sqlite3;
+  const S3JniNphOp sqlite3_backup;
+  const S3JniNphOp sqlite3_blob;
+  const S3JniNphOp sqlite3_context;
+  const S3JniNphOp sqlite3_stmt;
+  const S3JniNphOp sqlite3_value;
+  const S3JniNphOp OutputPointer_Bool;
+  const S3JniNphOp OutputPointer_Int32;
+  const S3JniNphOp OutputPointer_Int64;
+  const S3JniNphOp OutputPointer_sqlite3;
+  const S3JniNphOp OutputPointer_sqlite3_blob;
+  const S3JniNphOp OutputPointer_sqlite3_stmt;
+  const S3JniNphOp OutputPointer_sqlite3_value;
+  const S3JniNphOp OutputPointer_String;
+#ifdef SQLITE_ENABLE_FTS5
+  const S3JniNphOp OutputPointer_ByteArray;
+  const S3JniNphOp Fts5Context;
+  const S3JniNphOp Fts5ExtensionApi;
+  const S3JniNphOp fts5_api;
+  const S3JniNphOp fts5_tokenizer;
+  const S3JniNphOp Fts5Tokenizer;
+#endif
+} S3JniNphOps = {
+#define MkRef(INDEX, KLAZZ, MEMBER, SIG) \
+  { INDEX, "org/sqlite/jni/" KLAZZ, MEMBER, SIG }
+/* NativePointerHolder ref */
+#define RefN(INDEX, KLAZZ) MkRef(INDEX, KLAZZ, "nativePointer", "J")
+/* OutputPointer.T ref */
+#define RefO(INDEX, KLAZZ, SIG) MkRef(INDEX, KLAZZ, "value", SIG)
+  RefN(0,  "capi/sqlite3"),
+  RefN(1,  "capi/sqlite3_backup"),
+  RefN(2,  "capi/sqlite3_blob"),
+  RefN(3,  "capi/sqlite3_context"),
+  RefN(4,  "capi/sqlite3_stmt"),
+  RefN(5,  "capi/sqlite3_value"),
+  RefO(6,  "capi/OutputPointer$Bool",  "Z"),
+  RefO(7,  "capi/OutputPointer$Int32", "I"),
+  RefO(8,  "capi/OutputPointer$Int64", "J"),
+  RefO(9,  "capi/OutputPointer$sqlite3",
+           "Lorg/sqlite/jni/capi/sqlite3;"),
+  RefO(10, "capi/OutputPointer$sqlite3_blob",
+           "Lorg/sqlite/jni/capi/sqlite3_blob;"),
+  RefO(11, "capi/OutputPointer$sqlite3_stmt",
+           "Lorg/sqlite/jni/capi/sqlite3_stmt;"),
+  RefO(12, "capi/OutputPointer$sqlite3_value",
+           "Lorg/sqlite/jni/capi/sqlite3_value;"),
+  RefO(13, "capi/OutputPointer$String", "Ljava/lang/String;"),
+#ifdef SQLITE_ENABLE_FTS5
+  RefO(14, "capi/OutputPointer$ByteArray", "[B"),
+  RefN(15, "fts5/Fts5Context"),
+  RefN(16, "fts5/Fts5ExtensionApi"),
+  RefN(17, "fts5/fts5_api"),
+  RefN(18, "fts5/fts5_tokenizer"),
+  RefN(19, "fts5/Fts5Tokenizer")
+#endif
+#undef MkRef
+#undef RefN
+#undef RefO
+};
+
+#define S3JniNph(T) &S3JniNphOps.T
+
+enum {
+  /*
+  ** Size of the NativePointerHolder cache.  Need enough space for
+  ** (only) the library's NativePointerHolder and OutputPointer types,
+  ** a fixed count known at build-time.  This value needs to be
+  ** exactly the number of S3JniNphOp entries in the S3JniNphOps
+  ** object.
+  */
+  S3Jni_NphCache_size = sizeof(S3JniNphOps) / sizeof(S3JniNphOp)
+};
+
+/*
+** State for binding C callbacks to Java methods.
+*/
+typedef struct S3JniHook S3JniHook;
+struct S3JniHook{
+  jobject jObj            /* global ref to Java instance */;
+  jmethodID midCallback   /* callback method. Signature depends on
+                          ** jObj's type */;
+  /* We lookup the jObj.xDestroy() method as-needed for contexts which
+  ** support custom finalizers. Fundamentally we can support them for
+  ** any Java type, but we only want to expose support for them where
+  ** the C API does. */
+  jobject jExtra          /* Global ref to a per-hook-type value */;
+  int doXDestroy          /* If true then S3JniHook_unref() will call
+                             jObj->xDestroy() if it's available. */;
+  S3JniHook * pNext      /* Next entry in S3Global.hooks.aFree */;
+};
+/* For clean bitwise-copy init of local instances. */
+static const S3JniHook S3JniHook_empty = {0,0,0,0,0};
+
+/*
+** Per-(sqlite3*) state for various JNI bindings.  This state is
+** allocated as needed, cleaned up in sqlite3_close(_v2)(), and
+** recycled when possible.
+**
+** Trivia: vars and parameters of this type are often named "ps"
+** because this class used to have a name for which that abbreviation
+** made sense.
+*/
+typedef struct S3JniDb S3JniDb;
+struct S3JniDb {
+  sqlite3 *pDb  /* The associated db handle */;
+  jobject jDb   /* A global ref of the output object which gets
+                   returned from sqlite3_open(_v2)(). We need this in
+                   order to have an object to pass to routines like
+                   sqlite3_collation_needed()'s callback, or else we
+                   have to dynamically create one for that purpose,
+                   which would be fine except that it would be a
+                   different instance (and maybe even a different
+                   class) than the one the user may expect to
+                   receive. */;
+  char * zMainDbName  /* Holds the string allocated on behalf of
+                         SQLITE_DBCONFIG_MAINDBNAME. */;
+  struct {
+    S3JniHook busyHandler;
+    S3JniHook collationNeeded;
+    S3JniHook commit;
+    S3JniHook progress;
+    S3JniHook rollback;
+    S3JniHook trace;
+    S3JniHook update;
+    S3JniHook auth;
+#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
+    S3JniHook preUpdate;
+#endif
+  } hooks;
+#ifdef SQLITE_ENABLE_FTS5
+  /* FTS5-specific state */
+  struct {
+    jobject jApi  /* global ref to s3jni_fts5_api_from_db() */;
+  } fts;
+#endif
+  S3JniDb * pNext /* Next entry in SJG.perDb.aFree */;
+};
+
+static const char * const S3JniDb_clientdata_key = "S3JniDb";
+#define S3JniDb_from_clientdata(pDb)                                \
+  (pDb ? sqlite3_get_clientdata(pDb, S3JniDb_clientdata_key) : 0)
+
+/*
+** Cache for per-JNIEnv (i.e. per-thread) data.
+**
+** Trivia: vars and parameters of this type are often named "jc"
+** because this class used to have a name for which that abbreviation
+** made sense.
+*/
+typedef struct S3JniEnv S3JniEnv;
+struct S3JniEnv {
+  JNIEnv *env /* JNIEnv in which this cache entry was created */;
+  /*
+  ** pdbOpening is used to coordinate the Java/DB connection of a
+  ** being-open()'d db in the face of auto-extensions.
+  ** Auto-extensions run before we can bind the C db to its Java
+  ** representation, but auto-extensions require that binding to pass
+  ** on to their Java-side callbacks. We handle this as follows:
+  **
+  ** - In the JNI side of sqlite3_open(), allocate the Java side of
+  **   that connection and set pdbOpening to point to that
+  **   object.
+  **
+  ** - Call sqlite3_open(), which triggers the auto-extension
+  **   handler.  That handler uses pdbOpening to connect the native
+  **   db handle which it receives with pdbOpening.
+  **
+  ** - When sqlite3_open() returns, check whether pdbOpening->pDb is
+  **   NULL. If it isn't, auto-extension handling set it up.  If it
+  **   is, complete the Java/C binding unless sqlite3_open() returns
+  **   a NULL db, in which case free pdbOpening.
+  */
+  S3JniDb * pdbOpening;
+  S3JniEnv * pNext /* Next entry in SJG.envCache.aHead or
+                      SJG.envCache.aFree */;
+};
+
+/*
+** State for proxying sqlite3_auto_extension() in Java. This was
+** initially a separate class from S3JniHook and now the older name is
+** retained for readability in the APIs which use this, as well as for
+** its better code-searchability.
+*/
+typedef S3JniHook S3JniAutoExtension;
+
+/*
+** Type IDs for SQL function categories.
+*/
+enum UDFType {
+  UDF_UNKNOWN_TYPE = 0/*for error propagation*/,
+  UDF_SCALAR,
+  UDF_AGGREGATE,
+  UDF_WINDOW
+};
+
+/*
+** State for binding Java-side UDFs.
+*/
+typedef struct S3JniUdf S3JniUdf;
+struct S3JniUdf {
+  jobject jObj           /* SQLFunction instance */;
+  char * zFuncName       /* Only for error reporting and debug logging */;
+  enum UDFType type      /* UDF type */;
+  /** Method IDs for the various UDF methods. */
+  jmethodID jmidxFunc    /* xFunc method (scalar) */;
+  jmethodID jmidxStep    /* xStep method (aggregate/window) */;
+  jmethodID jmidxFinal   /* xFinal method (aggregate/window) */;
+  jmethodID jmidxValue   /* xValue method (window) */;
+  jmethodID jmidxInverse /* xInverse method (window) */;
+  S3JniUdf * pNext       /* Next entry in SJG.udf.aFree. */;
+};
+
+#if defined(SQLITE_JNI_ENABLE_METRICS) && 0==SQLITE_JNI_ENABLE_METRICS
+#  undef SQLITE_JNI_ENABLE_METRICS
+#endif
+
+/*
+** If true, modifying S3JniGlobal.metrics is protected by a mutex,
+** else it isn't.
+*/
+#ifdef SQLITE_DEBUG
+#  define S3JNI_METRICS_MUTEX SQLITE_THREADSAFE
+#else
+#  define S3JNI_METRICS_MUTEX 0
+#endif
+#ifndef SQLITE_JNI_ENABLE_METRICS
+#  undef S3JNI_METRICS_MUTEX
+#  define S3JNI_METRICS_MUTEX 0
+#endif
+
+/*
+** Global state, e.g. caches and metrics.
+*/
+typedef struct S3JniGlobalType S3JniGlobalType;
+struct S3JniGlobalType {
+  /*
+  ** According to: https://developer.ibm.com/articles/j-jni/
+  **
+  ** > A thread can get a JNIEnv by calling GetEnv() using the JNI
+  **   invocation interface through a JavaVM object. The JavaVM object
+  **   itself can be obtained by calling the JNI GetJavaVM() method
+  **   using a JNIEnv object and can be cached and shared across
+  **   threads. Caching a copy of the JavaVM object enables any thread
+  **   with access to the cached object to get access to its own
+  **   JNIEnv when necessary.
+  */
+  JavaVM * jvm;
+  /*
+  ** Global mutex. It must not be used for anything which might call
+  ** back into the JNI layer.
+  */
+  sqlite3_mutex * mutex;
+  /*
+  ** Cache of references to Java classes and method IDs for
+  ** NativePointerHolder subclasses and OutputPointer.T types.
+  */
+  struct {
+    S3JniNphOp list[S3Jni_NphCache_size];
+    sqlite3_mutex * mutex;    /* mutex for this->list */
+    volatile void const * locker;  /* sanity-checking-only context object
+                                      for this->mutex */
+  } nph;
+  /*
+  ** Cache of per-thread state.
+  */
+  struct {
+    S3JniEnv * aHead      /* Linked list of in-use instances */;
+    S3JniEnv * aFree      /* Linked list of free instances */;
+    sqlite3_mutex * mutex /* mutex for aHead and aFree. */;
+    volatile void const * locker  /* env mutex is held on this
+                                     object's behalf.  Used only for
+                                     sanity checking. */;
+  } envCache;
+  /*
+  ** Per-db state. This can move into the core library once we can tie
+  ** client-defined state to db handles there.
+  */
+  struct {
+    S3JniDb * aFree  /* Linked list of free instances */;
+    sqlite3_mutex * mutex /* mutex for aHead and aFree */;
+    volatile void const * locker
+    /* perDb mutex is held on this object's behalf. Used only for
+       sanity checking. Note that the mutex is at the class level, not
+       instance level. */;
+  } perDb;
+  struct {
+    S3JniUdf * aFree    /* Head of the free-item list. Guarded by global
+                           mutex. */;
+  } udf;
+  /*
+  ** Refs to global classes and methods. Obtained during static init
+  ** and never released.
+  */
+  struct {
+    jclass cLong             /* global ref to java.lang.Long */;
+    jclass cString           /* global ref to java.lang.String */;
+    jobject oCharsetUtf8     /* global ref to StandardCharset.UTF_8 */;
+    jmethodID ctorLong1      /* the Long(long) constructor */;
+    jmethodID ctorStringBA   /* the String(byte[],Charset) constructor */;
+    jmethodID stringGetBytes /* the String.getBytes(Charset) method */;
+
+    /*
+      ByteBuffer may or may not be supported via JNI on any given
+      platform:
+
+      https://docs.oracle.com/javase/8/docs/technotes/guides/jni/spec/functions.html#nio_support
+
+      We only store a ref to byteBuffer.klazz if JNI support for
+      ByteBuffer is available (which we determine during static init).
+    */
+    struct {
+      jclass klazz       /* global ref to java.nio.ByteBuffer */;
+      jmethodID midAlloc /* ByteBuffer.allocateDirect() */;
+      jmethodID midLimit /* ByteBuffer.limit() */;
+    } byteBuffer;
+  } g;
+  /*
+  ** The list of Java-side auto-extensions
+  ** (org.sqlite.jni.capi.AutoExtensionCallback objects).
+  */
+  struct {
+    S3JniAutoExtension *aExt /* The auto-extension list. It is
+                                maintained such that all active
+                                entries are in the first contiguous
+                                nExt array elements. */;
+    int nAlloc               /* number of entries allocated for aExt,
+                                as distinct from the number of active
+                                entries. */;
+    int nExt                 /* number of active entries in aExt, all in the
+                                first nExt'th array elements. */;
+    sqlite3_mutex * mutex    /* mutex for manipulation/traversal of aExt */;
+    volatile const void * locker /* object on whose behalf the mutex
+                                    is held.  Only for sanity checking
+                                    in debug builds. */;
+  } autoExt;
+#ifdef SQLITE_ENABLE_FTS5
+  struct {
+    volatile jobject jExt /* Global ref to Java singleton for the
+                             Fts5ExtensionApi instance. */;
+    struct {
+      jfieldID fidA       /* Fts5Phrase::a member */;
+      jfieldID fidB       /* Fts5Phrase::b member */;
+    } jPhraseIter;
+  } fts5;
+#endif
+  struct {
+#ifdef SQLITE_ENABLE_SQLLOG
+    S3JniHook sqllog      /* sqlite3_config(SQLITE_CONFIG_SQLLOG) callback */;
+#endif
+    S3JniHook configlog   /* sqlite3_config(SQLITE_CONFIG_LOG) callback */;
+    S3JniHook * aFree     /* free-item list, for recycling. */;
+    sqlite3_mutex * mutex /* mutex for aFree */;
+    volatile const void * locker /* object on whose behalf the mutex
+                                    is held.  Only for sanity checking
+                                    in debug builds. */;
+  } hook;
+#ifdef SQLITE_JNI_ENABLE_METRICS
+  /* Internal metrics. */
+  struct {
+    volatile unsigned nEnvHit;
+    volatile unsigned nEnvMiss;
+    volatile unsigned nEnvAlloc;
+    volatile unsigned nMutexEnv       /* number of times envCache.mutex was entered for
+                                         a S3JniEnv operation. */;
+    volatile unsigned nMutexNph       /* number of times SJG.mutex was entered */;
+    volatile unsigned nMutexHook      /* number of times SJG.mutex hooks.was entered */;
+    volatile unsigned nMutexPerDb     /* number of times perDb.mutex was entered */;
+    volatile unsigned nMutexAutoExt   /* number of times autoExt.mutex was entered */;
+    volatile unsigned nMutexGlobal    /* number of times global mutex was entered. */;
+    volatile unsigned nMutexUdf       /* number of times global mutex was entered
+                                         for UDFs. */;
+    volatile unsigned nDestroy        /* xDestroy() calls across all types */;
+    volatile unsigned nPdbAlloc       /* Number of S3JniDb alloced. */;
+    volatile unsigned nPdbRecycled    /* Number of S3JniDb reused. */;
+    volatile unsigned nUdfAlloc       /* Number of S3JniUdf alloced. */;
+    volatile unsigned nUdfRecycled    /* Number of S3JniUdf reused. */;
+    volatile unsigned nHookAlloc      /* Number of S3JniHook alloced. */;
+    volatile unsigned nHookRecycled   /* Number of S3JniHook reused. */;
+    struct {
+      /* Number of calls for each type of UDF callback. */
+      volatile unsigned nFunc;
+      volatile unsigned nStep;
+      volatile unsigned nFinal;
+      volatile unsigned nValue;
+      volatile unsigned nInverse;
+    } udf;
+    unsigned nMetrics                 /* Total number of mutex-locked
+                                         metrics increments. */;
+#if S3JNI_METRICS_MUTEX
+    sqlite3_mutex * mutex;
+#endif
+  } metrics;
+#endif /* SQLITE_JNI_ENABLE_METRICS */
+};
+static S3JniGlobalType S3JniGlobal = {};
+#define SJG S3JniGlobal
+
+/* Increments *p, possibly protected by a mutex. */
+#ifndef SQLITE_JNI_ENABLE_METRICS
+#define s3jni_incr(PTR)
+#elif S3JNI_METRICS_MUTEX
+static void s3jni_incr( volatile unsigned int * const p ){
+  sqlite3_mutex_enter(SJG.metrics.mutex);
+  ++SJG.metrics.nMetrics;
+  ++(*p);
+  sqlite3_mutex_leave(SJG.metrics.mutex);
+}
+#else
+#define s3jni_incr(PTR) ++(*(PTR))
+#endif
+
+/* Helpers for working with specific mutexes. */
+#if SQLITE_THREADSAFE
+#define s3jni_mutex_enter2(M, Metric) \
+  sqlite3_mutex_enter( M );           \
+  s3jni_incr( &SJG.metrics.Metric )
+#define s3jni_mutex_leave2(M) \
+  sqlite3_mutex_leave( M )
+
+#define s3jni_mutex_enter(M, L, Metric)                    \
+  assert( (void*)env != (void*)L && "Invalid use of " #L); \
+  s3jni_mutex_enter2( M, Metric );                         \
+  L = env
+#define s3jni_mutex_leave(M, L)                            \
+  assert( (void*)env == (void*)L && "Invalid use of " #L); \
+  L = 0;                                                   \
+  s3jni_mutex_leave2( M )
+
+#define S3JniEnv_mutex_assertLocked \
+  assert( 0 != SJG.envCache.locker && "Misuse of S3JniGlobal.envCache.mutex" )
+#define S3JniEnv_mutex_assertLocker \
+  assert( (env) == SJG.envCache.locker && "Misuse of S3JniGlobal.envCache.mutex" )
+#define S3JniEnv_mutex_assertNotLocker \
+  assert( (env) != SJG.envCache.locker && "Misuse of S3JniGlobal.envCache.mutex" )
+
+#define S3JniEnv_mutex_enter \
+  s3jni_mutex_enter( SJG.envCache.mutex, SJG.envCache.locker, nMutexEnv )
+#define S3JniEnv_mutex_leave \
+  s3jni_mutex_leave( SJG.envCache.mutex, SJG.envCache.locker )
+
+#define S3JniAutoExt_mutex_enter \
+  s3jni_mutex_enter( SJG.autoExt.mutex, SJG.autoExt.locker, nMutexAutoExt )
+#define S3JniAutoExt_mutex_leave \
+  s3jni_mutex_leave( SJG.autoExt.mutex, SJG.autoExt.locker )
+#define S3JniAutoExt_mutex_assertLocker                     \
+  assert( env == SJG.autoExt.locker && "Misuse of S3JniGlobal.autoExt.mutex" )
+
+#define S3JniGlobal_mutex_enter \
+  s3jni_mutex_enter2( SJG.mutex, nMutexGlobal )
+#define S3JniGlobal_mutex_leave \
+  s3jni_mutex_leave2( SJG.mutex )
+
+#define S3JniHook_mutex_enter \
+  s3jni_mutex_enter( SJG.hook.mutex, SJG.hook.locker, nMutexHook )
+#define S3JniHook_mutex_leave \
+  s3jni_mutex_leave( SJG.hook.mutex, SJG.hook.locker )
+
+#define S3JniNph_mutex_enter \
+  s3jni_mutex_enter( SJG.nph.mutex, SJG.nph.locker, nMutexNph )
+#define S3JniNph_mutex_leave \
+  s3jni_mutex_leave( SJG.nph.mutex, SJG.nph.locker )
+
+#define S3JniDb_mutex_assertLocker \
+  assert( (env) == SJG.perDb.locker && "Misuse of S3JniGlobal.perDb.mutex" )
+#define S3JniDb_mutex_enter \
+  s3jni_mutex_enter( SJG.perDb.mutex, SJG.perDb.locker, nMutexPerDb )
+#define S3JniDb_mutex_leave \
+  s3jni_mutex_leave( SJG.perDb.mutex, SJG.perDb.locker )
+
+#else /* SQLITE_THREADSAFE==0 */
+#define S3JniAutoExt_mutex_assertLocker
+#define S3JniAutoExt_mutex_enter
+#define S3JniAutoExt_mutex_leave
+#define S3JniDb_mutex_assertLocker
+#define S3JniDb_mutex_enter
+#define S3JniDb_mutex_leave
+#define S3JniEnv_mutex_assertLocked
+#define S3JniEnv_mutex_assertLocker
+#define S3JniEnv_mutex_assertNotLocker
+#define S3JniEnv_mutex_enter
+#define S3JniEnv_mutex_leave
+#define S3JniGlobal_mutex_enter
+#define S3JniGlobal_mutex_leave
+#define S3JniHook_mutex_enter
+#define S3JniHook_mutex_leave
+#define S3JniNph_mutex_enter
+#define S3JniNph_mutex_leave
+#endif
+
+/* Helpers for jstring and jbyteArray. */
+static const char * s3jni__jstring_to_mutf8(JNIEnv * const env, jstring v ){
+  const char *z = v ? (*env)->GetStringUTFChars(env, v, NULL) : 0;
+  s3jni_oom_check( v ? !!z : !z );
+  return z;
+}
+
+#define s3jni_jstring_to_mutf8(ARG) s3jni__jstring_to_mutf8(env, (ARG))
+#define s3jni_mutf8_release(ARG,VAR) if( VAR ) (*env)->ReleaseStringUTFChars(env, ARG, VAR)
+
+/*
+** If jBA is not NULL then its GetByteArrayElements() value is
+** returned. If jBA is not NULL and nBA is not NULL then *nBA is set
+** to the GetArrayLength() of jBA. If GetByteArrayElements() requires
+** an allocation and that allocation fails then this function either
+** fails fatally or returns 0, depending on build-time options.
+ */
+static jbyte * s3jni__jbyteArray_bytes2(JNIEnv * const env, jbyteArray jBA, jsize * nBA ){
+  jbyte * const rv = jBA ? (*env)->GetByteArrayElements(env, jBA, NULL) : 0;
+  s3jni_oom_check( jBA ? !!rv : 1 );
+  if( jBA && nBA ) *nBA = (*env)->GetArrayLength(env, jBA);
+  return rv;
+}
+
+#define s3jni_jbyteArray_bytes2(jByteArray,ptrToSz) \
+  s3jni__jbyteArray_bytes2(env, (jByteArray), (ptrToSz))
+#define s3jni_jbyteArray_bytes(jByteArray) s3jni__jbyteArray_bytes2(env, (jByteArray), 0)
+#define s3jni_jbyteArray_release(jByteArray,jBytes) \
+  if( jBytes ) (*env)->ReleaseByteArrayElements(env, jByteArray, jBytes, JNI_ABORT)
+#define s3jni_jbyteArray_commit(jByteArray,jBytes) \
+  if( jBytes ) (*env)->ReleaseByteArrayElements(env, jByteArray, jBytes, JNI_COMMIT)
+
+/*
+** If jbb is-a java.nio.Buffer object and the JNI environment supports
+** it, *pBuf is set to the buffer's memory and *pN is set to its
+** limit() (as opposed to its capacity()). If jbb is NULL, not a
+** Buffer, or the JNI environment does not support that operation,
+** *pBuf is set to 0 and *pN is set to 0.
+**
+** Note that the length of the buffer can be larger than SQLITE_LIMIT
+** but this function does not know what byte range of the buffer is
+** required so cannot check for that violation. The caller is required
+** to ensure that any to-be-bind()ed range fits within SQLITE_LIMIT.
+**
+** Sidebar: it is unfortunate that we cannot get ByteBuffer.limit()
+** via a JNI method like we can for ByteBuffer.capacity(). We instead
+** have to call back into Java to get the limit(). Depending on how
+** the ByteBuffer is used, the limit and capacity might be the same,
+** but when reusing a buffer, the limit may well change whereas the
+** capacity is fixed. The problem with, e.g., read()ing blob data to a
+** ByteBuffer's memory based on its capacity is that Java-level code
+** is restricted to accessing the range specified in
+** ByteBuffer.limit().  If we were to honor only the capacity, we
+** could end up writing to, or reading from, parts of a ByteBuffer
+** which client code itself cannot access without explicitly modifying
+** the limit. The penalty we pay for this correctness is that we must
+** call into Java to get the limit() of every ByteBuffer we work with.
+**
+** An alternative to having to call into ByteBuffer.limit() from here
+** would be to add private native impls of all ByteBuffer-using
+** methods, each of which adds a jint parameter which _must_ be set to
+** theBuffer.limit() by public Java APIs which use those private impls
+** to do the real work.
+*/
+static void s3jni__get_nio_buffer(JNIEnv * const env, jobject jbb, void **pBuf, jint * pN ){
+  *pBuf = 0;
+  *pN = 0;
+  if( jbb ){
+    *pBuf = (*env)->GetDirectBufferAddress(env, jbb);
+    if( *pBuf ){
+      /*
+      ** Maintenance reminder: do not use
+      ** (*env)->GetDirectBufferCapacity(env,jbb), even though it
+      ** would be much faster, for reasons explained in this
+      ** function's comments.
+      */
+      *pN = (*env)->CallIntMethod(env, jbb, SJG.g.byteBuffer.midLimit);
+      S3JniExceptionIsFatal("Error calling ByteBuffer.limit() method.");
+    }
+  }
+}
+#define s3jni_get_nio_buffer(JOBJ,vpOut,jpOut) \
+  s3jni__get_nio_buffer(env,(JOBJ),(vpOut),(jpOut))
+
+/*
+** Returns the current JNIEnv object. Fails fatally if it cannot find
+** the object.
+*/
+static JNIEnv * s3jni_env(void){
+  JNIEnv * env = 0;
+  if( (*SJG.jvm)->GetEnv(SJG.jvm, (void **)&env,
+                                 JNI_VERSION_1_8) ){
+    fprintf(stderr, "Fatal error: cannot get current JNIEnv.\n");
+    abort();
+  }
+  return env;
+}
+
+/*
+** Fetches the S3JniGlobal.envCache row for the given env, allocing a
+** row if needed. When a row is allocated, its state is initialized
+** insofar as possible. Calls (*env)->FatalError() if allocation of an
+** entry fails. That's hypothetically possible but "shouldn't happen."
+*/
+static S3JniEnv * S3JniEnv__get(JNIEnv * const env){
+  struct S3JniEnv * row;
+  S3JniEnv_mutex_enter;
+  row = SJG.envCache.aHead;
+  for( ; row; row = row->pNext ){
+    if( row->env == env ){
+      s3jni_incr( &SJG.metrics.nEnvHit );
+      S3JniEnv_mutex_leave;
+      return row;
+    }
+  }
+  s3jni_incr( &SJG.metrics.nEnvMiss );
+  row = SJG.envCache.aFree;
+  if( row ){
+    SJG.envCache.aFree = row->pNext;
+  }else{
+    row = s3jni_malloc_or_die(env, sizeof(*row));
+    s3jni_incr( &SJG.metrics.nEnvAlloc );
+  }
+  memset(row, 0, sizeof(*row));
+  row->pNext = SJG.envCache.aHead;
+  SJG.envCache.aHead = row;
+  row->env = env;
+
+  S3JniEnv_mutex_leave;
+  return row;
+}
+
+#define S3JniEnv_get() S3JniEnv__get(env)
+
+/*
+** This function is NOT part of the sqlite3 public API. It is strictly
+** for use by the sqlite project's own Java/JNI bindings.
+**
+** For purposes of certain hand-crafted JNI function bindings, we
+** need a way of reporting errors which is consistent with the rest of
+** the C API, as opposed to throwing Java exceptions. To that end, this
+** internal-use-only function is a thin proxy around
+** sqlite3ErrorWithMessage(). The intent is that it only be used from
+** JNI bindings such as sqlite3_prepare_v2/v3(), and definitely not
+** from client code.
+**
+** Returns err_code.
+*/
+static int s3jni_db_error(sqlite3* const db, int err_code,
+                          const char * const zMsg){
+  if( db!=0 ){
+    if( 0==zMsg ){
+      sqlite3Error(db, err_code);
+    }else{
+      const int nMsg = sqlite3Strlen30(zMsg);
+      sqlite3_mutex_enter(sqlite3_db_mutex(db));
+      sqlite3ErrorWithMsg(db, err_code, "%.*s", nMsg, zMsg);
+      sqlite3_mutex_leave(sqlite3_db_mutex(db));
+    }
+  }
+  return err_code;
+}
+
+/*
+** Creates a new jByteArray of length nP, copies p's contents into it,
+** and returns that byte array (NULL on OOM unless fail-fast alloc
+** errors are enabled). p may be NULL, in which case the array is
+** created but no bytes are filled.
+*/
+static jbyteArray s3jni__new_jbyteArray(JNIEnv * const env,
+                                       const void * const p, int nP){
+  jbyteArray jba = (*env)->NewByteArray(env, (jint)nP);
+
+  s3jni_oom_check( jba );
+  if( jba && p ){
+    (*env)->SetByteArrayRegion(env, jba, 0, (jint)nP, (const jbyte*)p);
+  }
+  return jba;
+}
+
+#define s3jni_new_jbyteArray(P,n) s3jni__new_jbyteArray(env, P, n)
+
+
+/*
+** Uses the java.lang.String(byte[],Charset) constructor to create a
+** new String from UTF-8 string z. n is the number of bytes to
+** copy. If n<0 then sqlite3Strlen30() is used to calculate it.
+**
+** Returns NULL if z is NULL or on OOM, else returns a new jstring
+** owned by the caller.
+**
+** Sidebar: this is a painfully inefficient way to convert from
+** standard UTF-8 to a Java string, but JNI offers only algorithms for
+** working with MUTF-8, not UTF-8.
+*/
+static jstring s3jni__utf8_to_jstring(JNIEnv * const env,
+                                      const char * const z, int n){
+  jstring rv = NULL;
+  if( 0==n || (n<0 && z && !z[0]) ){
+    /* Fast-track the empty-string case via the MUTF-8 API. We could
+       hypothetically do this for any strings where n<4 and z is
+       NUL-terminated and none of z[0..3] are NUL bytes. */
+    rv = (*env)->NewStringUTF(env, "");
+    s3jni_oom_check( rv );
+  }else if( z ){
+    jbyteArray jba;
+    if( n<0 ) n = sqlite3Strlen30(z);
+    jba = s3jni_new_jbyteArray((unsigned const char *)z, n);
+    if( jba ){
+      rv = (*env)->NewObject(env, SJG.g.cString, SJG.g.ctorStringBA,
+                             jba, SJG.g.oCharsetUtf8);
+      S3JniIfThrew{
+        S3JniExceptionReport;
+        S3JniExceptionClear;
+      }
+      S3JniUnrefLocal(jba);
+    }
+    s3jni_oom_check( rv );
+  }
+  return rv;
+}
+#define s3jni_utf8_to_jstring(CStr,n) s3jni__utf8_to_jstring(env, CStr, n)
+
+/*
+** Converts the given java.lang.String object into a NUL-terminated
+** UTF-8 C-string by calling jstr.getBytes(StandardCharset.UTF_8).
+** Returns NULL if jstr is NULL or on allocation error. If jstr is not
+** NULL and nLen is not NULL then nLen is set to the length of the
+** returned string, not including the terminating NUL. If jstr is not
+** NULL and it returns NULL, this indicates an allocation error. In
+** that case, if nLen is not NULL then it is either set to 0 (if
+** fetching of jstr's bytes fails to allocate) or set to what would
+** have been the length of the string had C-string allocation
+** succeeded.
+**
+** The returned memory is allocated from sqlite3_malloc() and
+** ownership is transferred to the caller.
+*/
+static char * s3jni__jstring_to_utf8(JNIEnv * const env,
+                                    jstring jstr, int *nLen){
+  jbyteArray jba;
+  jsize nBA;
+  char *rv;
+
+  if( !jstr ) return 0;
+  jba = (*env)->CallObjectMethod(env, jstr, SJG.g.stringGetBytes,
+                                 SJG.g.oCharsetUtf8);
+
+  if( (*env)->ExceptionCheck(env) || !jba
+      /* order of these checks is significant for -Xlint:jni */ ) {
+    S3JniExceptionReport;
+    s3jni_oom_check( jba );
+    if( nLen ) *nLen = 0;
+    return 0;
+  }
+  nBA = (*env)->GetArrayLength(env, jba);
+  if( nLen ) *nLen = (int)nBA;
+  rv = s3jni_malloc( nBA + 1 );
+  if( rv ){
+    (*env)->GetByteArrayRegion(env, jba, 0, nBA, (jbyte*)rv);
+    rv[nBA] = 0;
+  }
+  S3JniUnrefLocal(jba);
+  return rv;
+}
+#define s3jni_jstring_to_utf8(JStr,n) s3jni__jstring_to_utf8(env, JStr, n)
+
+/*
+** Expects to be passed a pointer from sqlite3_column_text16() or
+** sqlite3_value_text16() and a byte-length value from
+** sqlite3_column_bytes16() or sqlite3_value_bytes16(). It creates a
+** Java String of exactly half that character length, returning NULL
+** if !p or (*env)->NewString() fails.
+*/
+static jstring s3jni_text16_to_jstring(JNIEnv * const env, const void * const p, int nP){
+  jstring const rv = p
+    ? (*env)->NewString(env, (const jchar *)p, (jsize)(nP/2))
+    : NULL;
+  s3jni_oom_check( p ? !!rv : 1 );
+  return rv;
+}
+
+/*
+** Creates a new ByteBuffer instance with a capacity of n. assert()s
+** that SJG.g.byteBuffer.klazz is not 0 and n>0.
+*/
+static jobject s3jni__new_ByteBuffer(JNIEnv * const env, int n){
+  jobject rv = 0;
+  assert( SJG.g.byteBuffer.klazz );
+  assert( SJG.g.byteBuffer.midAlloc );
+  assert( n > 0 );
+  rv = (*env)->CallStaticObjectMethod(env, SJG.g.byteBuffer.klazz,
+                                      SJG.g.byteBuffer.midAlloc, (jint)n);
+  S3JniIfThrew {
+    S3JniExceptionReport;
+    S3JniExceptionClear;
+  }
+  s3jni_oom_check( rv );
+  return rv;
+}
+
+/*
+** If n>0 and sqlite3_jni_supports_nio() is true then this creates a
+** new ByteBuffer object and copies n bytes from p to it. Returns NULL
+** if n is 0, sqlite3_jni_supports_nio() is false, or on allocation
+** error (unless fatal alloc failures are enabled).
+*/
+static jobject s3jni__blob_to_ByteBuffer(JNIEnv * const env,
+                                         const void * p, int n){
+  jobject rv = NULL;
+  assert( n >= 0 );
+  if( 0==n || !SJG.g.byteBuffer.klazz ){
+    return NULL;
+  }
+  rv = s3jni__new_ByteBuffer(env, n);
+  if( rv ){
+    void * tgt = (*env)->GetDirectBufferAddress(env, rv);
+    memcpy(tgt, p, (size_t)n);
+  }
+  return rv;
+}
+
+
+/*
+** Requires jx to be a Throwable. Calls its toString() method and
+** returns its value converted to a UTF-8 string. The caller owns the
+** returned string and must eventually sqlite3_free() it.  Returns 0
+** if there is a problem fetching the info or on OOM.
+**
+** Design note: we use toString() instead of getMessage() because the
+** former includes the exception type's name:
+**
+**  Exception e = new RuntimeException("Hi");
+**  System.out.println(e.toString()); // java.lang.RuntimeException: Hi
+**  System.out.println(e.getMessage()); // Hi
+*/
+static char * s3jni_exception_error_msg(JNIEnv * const env, jthrowable jx){
+  jmethodID mid;
+  jstring msg;
+  char * zMsg;
+  jclass const klazz = (*env)->GetObjectClass(env, jx);
+  mid = (*env)->GetMethodID(env, klazz, "toString", "()Ljava/lang/String;");
+  S3JniUnrefLocal(klazz);
+  S3JniIfThrew{
+    S3JniExceptionReport;
+    S3JniExceptionClear;
+    return 0;
+  }
+  msg = (*env)->CallObjectMethod(env, jx, mid);
+  S3JniIfThrew{
+    S3JniExceptionReport;
+    S3JniExceptionClear;
+    return 0;
+  }
+  zMsg = s3jni_jstring_to_utf8( msg, 0);
+  S3JniUnrefLocal(msg);
+  return zMsg;
+}
+
+/*
+** Extracts env's current exception, sets ps->pDb's error message to
+** its message string, and clears the exception. If errCode is non-0,
+** it is used as-is, else SQLITE_ERROR is assumed. If there's a
+** problem extracting the exception's message, it's treated as
+** non-fatal and zDfltMsg is used in its place.
+**
+** Locks the global S3JniDb mutex.
+**
+** This must only be called if a JNI exception is pending.
+**
+** Returns errCode unless it is 0, in which case SQLITE_ERROR is
+** returned.
+*/
+static int s3jni__db_exception(JNIEnv * const env, sqlite3 * const pDb,
+                              int errCode, const char *zDfltMsg){
+  jthrowable const ex = (*env)->ExceptionOccurred(env);
+
+  if( 0==errCode ) errCode = SQLITE_ERROR;
+  if( ex ){
+    char * zMsg;
+    S3JniExceptionClear;
+    zMsg = s3jni_exception_error_msg(env, ex);
+    s3jni_db_error(pDb, errCode, zMsg ? zMsg : zDfltMsg);
+    sqlite3_free(zMsg);
+    S3JniUnrefLocal(ex);
+  }else if( zDfltMsg ){
+    s3jni_db_error(pDb, errCode, zDfltMsg);
+  }
+  return errCode;
+}
+#define s3jni_db_exception(pDb,ERRCODE,DFLTMSG) \
+  s3jni__db_exception(env, (pDb), (ERRCODE), (DFLTMSG) )
+
+/*
+** Extracts the (void xDestroy()) method from jObj and applies it to
+** jObj. If jObj is NULL, this is a no-op. The lack of an xDestroy()
+** method is silently ignored. Any exceptions thrown by xDestroy()
+** trigger a warning to stdout or stderr and then the exception is
+** suppressed.
+*/
+static void s3jni__call_xDestroy(JNIEnv * const env, jobject jObj){
+  if( jObj ){
+    jclass const klazz = (*env)->GetObjectClass(env, jObj);
+    jmethodID method = (*env)->GetMethodID(env, klazz, "xDestroy", "()V");
+
+    S3JniUnrefLocal(klazz);
+    if( method ){
+      s3jni_incr( &SJG.metrics.nDestroy );
+      (*env)->CallVoidMethod(env, jObj, method);
+      S3JniIfThrew{
+        S3JniExceptionWarnCallbackThrew("xDestroy() callback");
+        S3JniExceptionClear;
+      }
+    }else{
+      /* Non-fatal. */
+      S3JniExceptionClear;
+    }
+  }
+}
+#define s3jni_call_xDestroy(JOBJ) s3jni__call_xDestroy(env, (JOBJ))
+
+/*
+** Internal helper for many hook callback impls. Locks the S3JniDb
+** mutex, makes a copy of src into dest, with a some differences: (1)
+** if src->jObj or src->jExtra are not NULL then dest will be a new
+** LOCAL ref to it instead of a copy of the prior GLOBAL ref. (2)
+** dest->doXDestroy is always false.
+**
+** If dest->jObj is not NULL when this returns then the caller is
+** obligated to eventually free the new ref by passing *dest to
+** S3JniHook_localundup(). The dest pointer must NOT be passed to
+** S3JniHook_unref(), as that routine assumes that dest->jObj/jExtra
+** are GLOBAL refs (it's illegal to try to unref the wrong ref type).
+**
+** Background: when running a hook we need a call-local copy lest
+** another thread modify the hook while we're running it. That copy
+** has to have its own Java reference, but it need only be call-local.
+*/
+static void S3JniHook__localdup( JNIEnv * const env, S3JniHook const * const src,
+                                 S3JniHook * const dest ){
+  S3JniHook_mutex_enter;
+  *dest = *src;
+  if(src->jObj) dest->jObj = S3JniRefLocal(src->jObj);
+  if(src->jExtra) dest->jExtra = S3JniRefLocal(src->jExtra);
+  dest->doXDestroy = 0;
+  S3JniHook_mutex_leave;
+}
+#define S3JniHook_localdup(src,dest) S3JniHook__localdup(env,src,dest)
+
+static void S3JniHook__localundup( JNIEnv * const env, S3JniHook * const h  ){
+  S3JniUnrefLocal(h->jObj);
+  S3JniUnrefLocal(h->jExtra);
+  *h = S3JniHook_empty;
+}
+#define S3JniHook_localundup(HOOK) S3JniHook__localundup(env, &(HOOK))
+
+/*
+** Removes any Java references from s and clears its state. If
+** doXDestroy is true and s->jObj is not NULL, s->jObj
+** is passed to s3jni_call_xDestroy() before any references are
+** cleared. It is legal to call this when the object has no Java
+** references. s must not be NULL.
+*/
+static void S3JniHook__unref(JNIEnv * const env, S3JniHook * const s){
+  if( s->jObj ){
+    if( s->doXDestroy ){
+      s3jni_call_xDestroy(s->jObj);
+    }
+    S3JniUnrefGlobal(s->jObj);
+    S3JniUnrefGlobal(s->jExtra);
+  }else{
+    assert( !s->jExtra );
+  }
+  *s = S3JniHook_empty;
+}
+#define S3JniHook_unref(hook) S3JniHook__unref(env, (hook))
+
+/*
+** Allocates one blank S3JniHook object from the recycling bin, if
+** available, else from the heap. Returns NULL or dies on OOM,
+** depending on build options.  Locks on SJG.hooks.mutex.
+*/
+static S3JniHook *S3JniHook__alloc(JNIEnv  * const env){
+  S3JniHook * p = 0;
+  S3JniHook_mutex_enter;
+  if( SJG.hook.aFree ){
+    p = SJG.hook.aFree;
+    SJG.hook.aFree = p->pNext;
+    p->pNext = 0;
+    s3jni_incr(&SJG.metrics.nHookRecycled);
+  }
+  S3JniHook_mutex_leave;
+  if( 0==p ){
+    p = s3jni_malloc(sizeof(S3JniHook));
+    if( p ){
+      s3jni_incr(&SJG.metrics.nHookAlloc);
+    }
+  }
+  if( p ){
+    *p = S3JniHook_empty;
+  }
+  return p;
+}
+#define S3JniHook_alloc() S3JniHook__alloc(env)
+
+/*
+** The rightful fate of all results from S3JniHook_alloc(). Locks on
+** SJG.hook.mutex.
+*/
+static void S3JniHook__free(JNIEnv  * const env, S3JniHook * const p){
+  if(p){
+    assert( !p->pNext );
+    S3JniHook_unref(p);
+    S3JniHook_mutex_enter;
+    p->pNext = SJG.hook.aFree;
+    SJG.hook.aFree = p;
+    S3JniHook_mutex_leave;
+  }
+}
+#define S3JniHook_free(hook) S3JniHook__free(env, hook)
+
+#if 0
+/* S3JniHook__free() without the lock: caller must hold the global mutex */
+static void S3JniHook__free_unlocked(JNIEnv  * const env, S3JniHook * const p){
+  if(p){
+    assert( !p->pNext );
+    assert( p->pNext != SJG.hook.aFree );
+    S3JniHook_unref(p);
+    p->pNext = SJG.hook.aFree;
+    SJG.hook.aFree = p;
+  }
+}
+#define S3JniHook_free_unlocked(hook) S3JniHook__free_unlocked(env, hook)
+#endif
+
+/*
+** Clears all of s's state. Requires that that the caller has locked
+** S3JniGlobal.perDb.mutex. Make sure to do anything needed with
+** s->pNext and s->pPrev before calling this, as this clears them.
+*/
+static void S3JniDb_clear(JNIEnv * const env, S3JniDb * const s){
+  S3JniDb_mutex_assertLocker;
+  sqlite3_free( s->zMainDbName );
+#define UNHOOK(MEMBER) \
+  S3JniHook_unref(&s->hooks.MEMBER)
+  UNHOOK(auth);
+  UNHOOK(busyHandler);
+  UNHOOK(collationNeeded);
+  UNHOOK(commit);
+  UNHOOK(progress);
+  UNHOOK(rollback);
+  UNHOOK(trace);
+  UNHOOK(update);
+#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
+  UNHOOK(preUpdate);
+#endif
+#undef UNHOOK
+  S3JniUnrefGlobal(s->jDb);
+  memset(s, 0, sizeof(S3JniDb));
+}
+
+/*
+** Clears s's state and moves it to the free-list. Requires that
+** S3JniGlobal.perDb.mutex is locked.
+*/
+static void S3JniDb__set_aside_unlocked(JNIEnv * const env, S3JniDb * const s){
+  assert( s );
+  S3JniDb_mutex_assertLocker;
+  if( s ){
+    S3JniDb_clear(env, s);
+    s->pNext = SJG.perDb.aFree;
+    SJG.perDb.aFree = s;
+  }
+}
+#define S3JniDb_set_aside_unlocked(JniDb) S3JniDb__set_aside_unlocked(env, JniDb)
+
+static void S3JniDb__set_aside(JNIEnv * const env, S3JniDb * const s){
+  S3JniDb_mutex_enter;
+  S3JniDb_set_aside_unlocked(s);
+  S3JniDb_mutex_leave;
+}
+#define S3JniDb_set_aside(JNIDB) S3JniDb__set_aside(env, JNIDB)
+
+/*
+** Uncache any state for the given JNIEnv, clearing all Java
+** references the cache owns. Returns true if env was cached and false
+** if it was not found in the cache. Ownership of the S3JniEnv object
+** associated with the given argument is transferred to this function,
+** which makes it free for re-use.
+**
+** Requires that the env mutex be locked.
+*/
+static int S3JniEnv_uncache(JNIEnv * const env){
+  struct S3JniEnv * row;
+  struct S3JniEnv * pPrev = 0;
+
+  S3JniEnv_mutex_assertLocked;
+  row = SJG.envCache.aHead;
+  for( ; row; pPrev = row, row = row->pNext ){
+    if( row->env == env ){
+      break;
+    }
+  }
+  if( !row ){
+    return 0;
+  }
+  if( pPrev) pPrev->pNext = row->pNext;
+  else{
+    assert( SJG.envCache.aHead == row );
+    SJG.envCache.aHead = row->pNext;
+  }
+  memset(row, 0, sizeof(S3JniEnv));
+  row->pNext = SJG.envCache.aFree;
+  SJG.envCache.aFree = row;
+  return 1;
+}
+
+/*
+** Fetches the given nph-ref from cache the cache and returns the
+** object with its klazz member set. This is an O(1) operation except
+** on the first call for a given pRef, during which pRef->klazz and
+** pRef->pRef are initialized thread-safely. In the latter case it's
+** still effectively O(1), but with a much longer 1.
+**
+** It is up to the caller to populate the other members of the
+** returned object if needed, taking care to lock the modification
+** with S3JniNph_mutex_enter/leave.
+**
+** This simple cache catches >99% of searches in the current
+** (2023-07-31) tests.
+*/
+static S3JniNphOp * s3jni__nphop(JNIEnv * const env, S3JniNphOp const* pRef){
+  S3JniNphOp * const pNC = &SJG.nph.list[pRef->index];
+
+  assert( (void*)pRef>=(void*)&S3JniNphOps && (void*)pRef<(void*)(&S3JniNphOps + 1)
+          && "pRef is out of range" );
+  assert( pRef->index>=0
+          && (pRef->index < (sizeof(S3JniNphOps) / sizeof(S3JniNphOp)))
+          && "pRef->index is out of range" );
+  if( !pNC->klazz ){
+    S3JniNph_mutex_enter;
+    if( !pNC->klazz ){
+      jclass const klazz = (*env)->FindClass(env, pRef->zName);
+      //printf("FindClass %s\n", pRef->zName);
+      S3JniExceptionIsFatal("FindClass() unexpectedly threw");
+      pNC->klazz = S3JniRefGlobal(klazz);
+    }
+    S3JniNph_mutex_leave;
+  }
+  assert( pNC->klazz );
+  return pNC;
+}
+
+#define s3jni_nphop(PRef) s3jni__nphop(env, PRef)
+
+/*
+** Common code for accessor functions for NativePointerHolder and
+** OutputPointer types. pRef must be a pointer from S3JniNphOps. jOut
+** must be an instance of that class (Java's type safety takes care of
+** that requirement). If necessary, this fetches the jfieldID for
+** jOut's pRef->zMember, which must be of the type represented by the
+** JNI type signature pRef->zTypeSig, and stores it in
+** S3JniGlobal.nph.list[pRef->index].  Fails fatally if the pRef->zMember
+** property is not found, as that presents a serious internal misuse.
+**
+** Property lookups are cached on a per-pRef basis.
+*/
+static jfieldID s3jni_nphop_field(JNIEnv * const env, S3JniNphOp const* pRef){
+  S3JniNphOp * const pNC = s3jni_nphop(pRef);
+
+  if( !pNC->fidValue ){
+    S3JniNph_mutex_enter;
+    if( !pNC->fidValue ){
+      pNC->fidValue = (*env)->GetFieldID(env, pNC->klazz,
+                                         pRef->zMember, pRef->zTypeSig);
+      S3JniExceptionIsFatal("Code maintenance required: missing "
+                            "required S3JniNphOp::fidValue.");
+    }
+    S3JniNph_mutex_leave;
+  }
+  assert( pNC->fidValue );
+  return pNC->fidValue;
+}
+
+/*
+** Sets a native ptr value in NativePointerHolder object jNph,
+** which must be of the native type described by pRef. jNph
+** may not be NULL.
+*/
+static void NativePointerHolder__set(JNIEnv * const env, S3JniNphOp const* pRef,
+                                     jobject jNph, const void * p){
+  assert( jNph );
+  (*env)->SetLongField(env, jNph, s3jni_nphop_field(env, pRef),
+                       S3JniCast_P2L(p));
+  S3JniExceptionIsFatal("Could not set NativePointerHolder.nativePointer.");
+}
+
+#define NativePointerHolder_set(PREF,JNPH,P) \
+  NativePointerHolder__set(env, PREF, JNPH, P)
+
+/*
+** Fetches a native ptr value from NativePointerHolder object jNph,
+** which must be of the native type described by pRef.  This is a
+** no-op if jNph is NULL.
+*/
+static void * NativePointerHolder__get(JNIEnv * env, jobject jNph,
+                                       S3JniNphOp const* pRef){
+  void * rv = 0;
+  if( jNph ){
+    rv = S3JniCast_L2P(
+      (*env)->GetLongField(env, jNph, s3jni_nphop_field(env, pRef))
+    );
+    S3JniExceptionIsFatal("Cannot fetch NativePointerHolder.nativePointer.");
+  }
+  return rv;
+}
+
+#define NativePointerHolder_get(JOBJ,NPHREF) \
+  NativePointerHolder__get(env, (JOBJ), (NPHREF))
+
+/*
+** Helpers for extracting pointers from jobjects, noting that we rely
+** on the corresponding Java interfaces having already done the
+** type-checking. OBJ must be a jobject referring to a
+** NativePointerHolder<T>, where T matches PtrGet_T. Don't use these
+** in contexts where that's not the case. Note that these aren't
+** type-safe in the strictest sense:
+**
+**   sqlite3 * s = PtrGet_sqlite3_stmt(...)
+**
+** will work, despite the incorrect macro name, so long as the
+** argument is a Java sqlite3 object, as this operation only has void
+** pointers to work with.
+*/
+#define PtrGet_T(T,JOBJ) (T*)NativePointerHolder_get((JOBJ), S3JniNph(T))
+#define PtrGet_sqlite3(JOBJ) PtrGet_T(sqlite3, (JOBJ))
+#define PtrGet_sqlite3_backup(JOBJ) PtrGet_T(sqlite3_backup, (JOBJ))
+#define PtrGet_sqlite3_blob(JOBJ) PtrGet_T(sqlite3_blob, (JOBJ))
+#define PtrGet_sqlite3_context(JOBJ) PtrGet_T(sqlite3_context, (JOBJ))
+#define PtrGet_sqlite3_stmt(JOBJ) PtrGet_T(sqlite3_stmt, (JOBJ))
+#define PtrGet_sqlite3_value(JOBJ) PtrGet_T(sqlite3_value, (JOBJ))
+/*
+** LongPtrGet_T(X,Y) expects X to be an unqualified sqlite3 struct
+** type name and Y to be a native pointer to such an object in the
+** form of a jlong value. The jlong is simply cast to (X*). This
+** approach is, as of 2023-09-27, supplanting the former approach. We
+** now do the native pointer extraction in the Java side, rather than
+** the C side, because it's reportedly significantly faster. The
+** intptr_t part here is necessary for compatibility with (at least)
+** ARM32.
+**
+** 2023-11-09: testing has not revealed any measurable performance
+** difference between the approach of passing type T to C compared to
+** passing pointer-to-T to C, and adding support for the latter
+** everywhere requires sigificantly more code. As of this writing, the
+** older/simpler approach is being applied except for (A) where the
+** newer approach has already been applied and (B) hot-spot APIs where
+** a difference of microseconds (i.e. below our testing measurement
+** threshold) might add up.
+*/
+#define LongPtrGet_T(T,JLongAsPtr) (T*)((intptr_t)((JLongAsPtr)))
+#define LongPtrGet_sqlite3(JLongAsPtr) LongPtrGet_T(sqlite3,(JLongAsPtr))
+#define LongPtrGet_sqlite3_backup(JLongAsPtr) LongPtrGet_T(sqlite3_backup,(JLongAsPtr))
+#define LongPtrGet_sqlite3_blob(JLongAsPtr) LongPtrGet_T(sqlite3_blob,(JLongAsPtr))
+#define LongPtrGet_sqlite3_stmt(JLongAsPtr) LongPtrGet_T(sqlite3_stmt,(JLongAsPtr))
+#define LongPtrGet_sqlite3_value(JLongAsPtr) LongPtrGet_T(sqlite3_value,(JLongAsPtr))
+/*
+** Extracts the new S3JniDb instance from the free-list, or allocates
+** one if needed, associates it with pDb, and returns.  Returns NULL
+** on OOM. The returned object MUST, on success of the calling
+** operation, subsequently be associated with jDb via
+** NativePointerHolder_set() or freed using S3JniDb_set_aside().
+*/
+static S3JniDb * S3JniDb_alloc(JNIEnv * const env, jobject jDb){
+  S3JniDb * rv = 0;
+  S3JniDb_mutex_enter;
+  if( SJG.perDb.aFree ){
+    rv = SJG.perDb.aFree;
+    SJG.perDb.aFree = rv->pNext;
+    rv->pNext = 0;
+    s3jni_incr( &SJG.metrics.nPdbRecycled );
+  }
+  S3JniDb_mutex_leave;
+  if( 0==rv ){
+    rv = s3jni_malloc(sizeof(S3JniDb));
+    if( rv ){
+      s3jni_incr( &SJG.metrics.nPdbAlloc );
+    }
+  }
+  if( rv ){
+    memset(rv, 0, sizeof(S3JniDb));
+    rv->jDb = S3JniRefGlobal(jDb);
+  }
+  return rv;
+}
+
+/*
+** Returns the S3JniDb object for the given org.sqlite.jni.capi.sqlite3
+** object, or NULL if jDb is NULL, no pointer can be extracted
+** from it, or no matching entry can be found.
+*/
+static S3JniDb * S3JniDb__from_java(JNIEnv * const env, jobject jDb){
+  sqlite3 * const pDb = jDb ? PtrGet_sqlite3(jDb) : 0;
+  return pDb ? S3JniDb_from_clientdata(pDb) : 0;
+}
+#define S3JniDb_from_java(jObject) S3JniDb__from_java(env,(jObject))
+
+/*
+** S3JniDb finalizer for use with sqlite3_set_clientdata().
+*/
+static void S3JniDb_xDestroy(void *p){
+  S3JniDeclLocal_env;
+  S3JniDb * const ps = p;
+  assert( !ps->pNext && "Else ps is already in the free-list.");
+  S3JniDb_set_aside(ps);
+}
+
+/*
+** Evaluates to the S3JniDb object for the given sqlite3 object, or
+** NULL if pDb is NULL or was not initialized via the JNI interfaces.
+*/
+#define S3JniDb_from_c(sqlite3Ptr) \
+  ((sqlite3Ptr) ? S3JniDb_from_clientdata(sqlite3Ptr) : 0)
+#define S3JniDb_from_jlong(sqlite3PtrAsLong) \
+  S3JniDb_from_c(LongPtrGet_T(sqlite3,sqlite3PtrAsLong))
+
+/*
+** Unref any Java-side state in (S3JniAutoExtension*) AX and zero out
+** AX.
+*/
+#define S3JniAutoExtension_clear(AX) S3JniHook_unref(AX);
+
+/*
+** Initializes a pre-allocated S3JniAutoExtension object.  Returns
+** non-0 if there is an error collecting the required state from
+** jAutoExt (which must be an AutoExtensionCallback object). On error,
+** it passes ax to S3JniAutoExtension_clear().
+*/
+static int S3JniAutoExtension_init(JNIEnv *const env,
+                                   S3JniAutoExtension * const ax,
+                                   jobject const jAutoExt){
+  jclass const klazz = (*env)->GetObjectClass(env, jAutoExt);
+
+  S3JniAutoExt_mutex_assertLocker;
+  *ax = S3JniHook_empty;
+  ax->midCallback = (*env)->GetMethodID(env, klazz, "call",
+                                        "(Lorg/sqlite/jni/capi/sqlite3;)I");
+  S3JniUnrefLocal(klazz);
+  S3JniExceptionWarnIgnore;
+  if( !ax->midCallback ){
+    S3JniAutoExtension_clear(ax);
+    return SQLITE_ERROR;
+  }
+  ax->jObj = S3JniRefGlobal(jAutoExt);
+  return 0;
+}
+
+/*
+** Sets the value property of the OutputPointer.Bool jOut object to
+** v.
+*/
+static void OutputPointer_set_Bool(JNIEnv * const env, jobject const jOut,
+                                    int v){
+  (*env)->SetBooleanField(env, jOut, s3jni_nphop_field(
+                            env, S3JniNph(OutputPointer_Bool)
+                          ), v ? JNI_TRUE : JNI_FALSE );
+  S3JniExceptionIsFatal("Cannot set OutputPointer.Bool.value");
+}
+
+/*
+** Sets the value property of the OutputPointer.Int32 jOut object to
+** v.
+*/
+static void OutputPointer_set_Int32(JNIEnv * const env, jobject const jOut,
+                                    int v){
+  (*env)->SetIntField(env, jOut, s3jni_nphop_field(
+                        env, S3JniNph(OutputPointer_Int32)
+                      ), (jint)v);
+  S3JniExceptionIsFatal("Cannot set OutputPointer.Int32.value");
+}
+
+/*
+** Sets the value property of the OutputPointer.Int64 jOut object to
+** v.
+*/
+static void OutputPointer_set_Int64(JNIEnv * const env, jobject const jOut,
+                                    jlong v){
+  (*env)->SetLongField(env, jOut, s3jni_nphop_field(
+                         env, S3JniNph(OutputPointer_Int64)
+                       ), v);
+  S3JniExceptionIsFatal("Cannot set OutputPointer.Int64.value");
+}
+
+/*
+** Internal helper for OutputPointer_set_TYPE() where TYPE is an
+** Object type.
+*/
+static void OutputPointer_set_obj(JNIEnv * const env,
+                                  S3JniNphOp const * const pRef,
+                                  jobject const jOut,
+                                  jobject v){
+  (*env)->SetObjectField(env, jOut, s3jni_nphop_field(env, pRef), v);
+  S3JniExceptionIsFatal("Cannot set OutputPointer.T.value");
+}
+
+#ifdef SQLITE_ENABLE_FTS5
+#if 0
+/*
+** Sets the value property of the OutputPointer.ByteArray jOut object
+** to v.
+*/
+static void OutputPointer_set_ByteArray(JNIEnv * const env, jobject const jOut,
+                                        jbyteArray const v){
+  OutputPointer_set_obj(env, S3JniNph(OutputPointer_ByteArray), jOut, v);
+}
+#endif
+#endif /* SQLITE_ENABLE_FTS5 */
+
+/*
+** Sets the value property of the OutputPointer.String jOut object to
+** v.
+*/
+static void OutputPointer_set_String(JNIEnv * const env, jobject const jOut,
+                                     jstring const v){
+  OutputPointer_set_obj(env, S3JniNph(OutputPointer_String), jOut, v);
+}
+
+/*
+** Returns true if eTextRep is a valid sqlite3 encoding constant, else
+** returns false.
+*/
+static int encodingTypeIsValid(int eTextRep){
+  switch( eTextRep ){
+    case SQLITE_UTF8: case SQLITE_UTF16:
+    case SQLITE_UTF16LE: case SQLITE_UTF16BE:
+      return 1;
+    default:
+      return 0;
+  }
+}
+
+/* For use with sqlite3_result_pointer(), sqlite3_value_pointer(),
+   sqlite3_bind_java_object(), and sqlite3_column_java_object(). */
+static const char * const s3jni__value_jref_key = "org.sqlite.jni.capi.ResultJavaVal";
+
+/*
+** If v is not NULL, it must be a jobject global reference. Its
+** reference is relinquished.
+*/
+static void S3Jni_jobject_finalizer(void *v){
+  if( v ){
+    S3JniDeclLocal_env;
+    S3JniUnrefGlobal((jobject)v);
+  }
+}
+
+/*
+** Returns a new Java instance of the class referred to by pRef, which
+** MUST be interface-compatible with NativePointerHolder and MUST have
+** a no-arg constructor. The NativePointerHolder_set() method is
+** passed the new Java object (which must not be NULL) and pNative
+** (which may be NULL). Hypothetically returns NULL if Java fails to
+** allocate, but the JNI docs are not entirely clear on that detail.
+**
+** Always use a static pointer from the S3JniNphOps struct for the
+** 2nd argument.
+*/
+static jobject NativePointerHolder_new(JNIEnv * const env,
+                                       S3JniNphOp const * pRef,
+                                       const void * pNative){
+  jobject rv = 0;
+  S3JniNphOp * const pNC = s3jni_nphop(pRef);
+  if( !pNC->midCtor ){
+    S3JniNph_mutex_enter;
+    if( !pNC->midCtor ){
+      pNC->midCtor = (*env)->GetMethodID(env, pNC->klazz, "<init>", "()V");
+      S3JniExceptionIsFatal("Cannot find constructor for class.");
+    }
+    S3JniNph_mutex_leave;
+  }
+  rv = (*env)->NewObject(env, pNC->klazz, pNC->midCtor);
+  S3JniExceptionIsFatal("No-arg constructor threw.");
+  s3jni_oom_check(rv);
+  if( rv ) NativePointerHolder_set(pRef, rv, pNative);
+  return rv;
+}
+
+static inline jobject new_java_sqlite3(JNIEnv * const env, sqlite3 *sv){
+  return NativePointerHolder_new(env, S3JniNph(sqlite3), sv);
+}
+static inline jobject new_java_sqlite3_backup(JNIEnv * const env, sqlite3_backup *sv){
+  return NativePointerHolder_new(env, S3JniNph(sqlite3_backup), sv);
+}
+static inline jobject new_java_sqlite3_blob(JNIEnv * const env, sqlite3_blob *sv){
+  return NativePointerHolder_new(env, S3JniNph(sqlite3_blob), sv);
+}
+static inline jobject new_java_sqlite3_context(JNIEnv * const env, sqlite3_context *sv){
+  return NativePointerHolder_new(env, S3JniNph(sqlite3_context), sv);
+}
+static inline jobject new_java_sqlite3_stmt(JNIEnv * const env, sqlite3_stmt *sv){
+  return NativePointerHolder_new(env, S3JniNph(sqlite3_stmt), sv);
+}
+static inline jobject new_java_sqlite3_value(JNIEnv * const env, sqlite3_value *sv){
+  return NativePointerHolder_new(env, S3JniNph(sqlite3_value), sv);
+}
+
+/* Helper typedefs for UDF callback types. */
+typedef void (*udf_xFunc_f)(sqlite3_context*,int,sqlite3_value**);
+typedef void (*udf_xStep_f)(sqlite3_context*,int,sqlite3_value**);
+typedef void (*udf_xFinal_f)(sqlite3_context*);
+/*typedef void (*udf_xValue_f)(sqlite3_context*);*/
+/*typedef void (*udf_xInverse_f)(sqlite3_context*,int,sqlite3_value**);*/
+
+/*
+** Allocate a new S3JniUdf (User-defined Function) and associate it
+** with the SQLFunction-type jObj. Returns NULL on OOM. If the
+** returned object's type==UDF_UNKNOWN_TYPE then the type of UDF was
+** not unambiguously detected based on which callback members it has,
+** which falls into the category of user error.
+**
+** The caller must arrange for the returned object to eventually be
+** passed to S3JniUdf_free().
+*/
+static S3JniUdf * S3JniUdf_alloc(JNIEnv * const env, jobject jObj){
+  S3JniUdf * s = 0;
+
+  S3JniGlobal_mutex_enter;
+  s3jni_incr(&SJG.metrics.nMutexUdf);
+  if( SJG.udf.aFree ){
+    s = SJG.udf.aFree;
+    SJG.udf.aFree = s->pNext;
+    s->pNext = 0;
+    s3jni_incr(&SJG.metrics.nUdfRecycled);
+  }
+  S3JniGlobal_mutex_leave;
+  if( !s ){
+    s = s3jni_malloc( sizeof(*s));
+    s3jni_incr(&SJG.metrics.nUdfAlloc);
+  }
+  if( s ){
+    const char * zFSI = /* signature for xFunc, xStep, xInverse */
+      "(Lorg/sqlite/jni/capi/sqlite3_context;[Lorg/sqlite/jni/capi/sqlite3_value;)V";
+    const char * zFV = /* signature for xFinal, xValue */
+      "(Lorg/sqlite/jni/capi/sqlite3_context;)V";
+    jclass const klazz = (*env)->GetObjectClass(env, jObj);
+
+    memset(s, 0, sizeof(*s));
+    s->jObj = S3JniRefGlobal(jObj);
+
+#define FGET(FuncName,FuncSig,Field)                               \
+    s->Field = (*env)->GetMethodID(env, klazz, FuncName, FuncSig); \
+    if( !s->Field ) (*env)->ExceptionClear(env)
+
+    FGET("xFunc",    zFSI, jmidxFunc);
+    FGET("xStep",    zFSI, jmidxStep);
+    FGET("xFinal",   zFV,  jmidxFinal);
+    FGET("xValue",   zFV,  jmidxValue);
+    FGET("xInverse", zFSI, jmidxInverse);
+#undef FGET
+
+    S3JniUnrefLocal(klazz);
+    if( s->jmidxFunc ) s->type = UDF_SCALAR;
+    else if( s->jmidxStep && s->jmidxFinal ){
+      s->type = (s->jmidxValue && s->jmidxInverse)
+        ? UDF_WINDOW : UDF_AGGREGATE;
+    }else{
+      s->type = UDF_UNKNOWN_TYPE;
+    }
+  }
+  return s;
+}
+
+/*
+** Frees up all resources owned by s, clears its state, then either
+** caches it for reuse (if cacheIt is true) or frees it. The former
+** requires locking the global mutex, so it must not be held when this
+** is called.
+*/
+static void S3JniUdf_free(JNIEnv * const env, S3JniUdf * const s,
+                          int cacheIt){
+  assert( !s->pNext );
+  if( s->jObj ){
+    s3jni_call_xDestroy(s->jObj);
+    S3JniUnrefGlobal(s->jObj);
+    sqlite3_free(s->zFuncName);
+    assert( !s->pNext );
+    memset(s, 0, sizeof(*s));
+  }
+  if( cacheIt ){
+    S3JniGlobal_mutex_enter;
+    s->pNext = S3JniGlobal.udf.aFree;
+    S3JniGlobal.udf.aFree = s;
+    S3JniGlobal_mutex_leave;
+  }else{
+    sqlite3_free( s );
+  }
+}
+
+/* Finalizer for sqlite3_create_function() and friends. */
+static void S3JniUdf_finalizer(void * s){
+  S3JniUdf_free(s3jni_env(), (S3JniUdf*)s, 1);
+}
+
+/*
+** Helper for processing args to UDF handlers with signature
+** (sqlite3_context*,int,sqlite3_value**).
+*/
+typedef struct {
+  jobject jcx         /* sqlite3_context */;
+  jobjectArray jargv  /* sqlite3_value[] */;
+} udf_jargs;
+
+/*
+** Converts the given (cx, argc, argv) into arguments for the given
+** UDF, writing the result (Java wrappers for cx and argv) in the
+** final 2 arguments. Returns 0 on success, SQLITE_NOMEM on allocation
+** error. On error *jCx and *jArgv will be set to 0. The output
+** objects are of type org.sqlite.jni.capi.sqlite3_context and
+** array-of-org.sqlite.jni.capi.sqlite3_value, respectively.
+*/
+static int udf_args(JNIEnv *env,
+                    sqlite3_context * const cx,
+                    int argc, sqlite3_value**argv,
+                    jobject * jCx, jobjectArray *jArgv){
+  jobjectArray ja = 0;
+  jobject jcx = new_java_sqlite3_context(env, cx);
+  jint i;
+  *jCx = 0;
+  *jArgv = 0;
+  if( !jcx ) goto error_oom;
+  ja = (*env)->NewObjectArray(
+    env, argc, s3jni_nphop(S3JniNph(sqlite3_value))->klazz,
+    NULL);
+  s3jni_oom_check( ja );
+  if( !ja ) goto error_oom;
+  for(i = 0; i < argc; ++i){
+    jobject jsv = new_java_sqlite3_value(env, argv[i]);
+    if( !jsv ) goto error_oom;
+    (*env)->SetObjectArrayElement(env, ja, i, jsv);
+    S3JniUnrefLocal(jsv)/*ja has a ref*/;
+  }
+  *jCx = jcx;
+  *jArgv = ja;
+  return 0;
+error_oom:
+  S3JniUnrefLocal(jcx);
+  S3JniUnrefLocal(ja);
+  return SQLITE_NOMEM;
+}
+
+/*
+** Requires that jCx and jArgv are sqlite3_context
+** resp. array-of-sqlite3_value values initialized by udf_args(). The
+** latter will be 0-and-NULL for UDF types with no arguments. This
+** function zeroes out the nativePointer member of jCx and each entry
+** in jArgv. This is a safety-net precaution to avoid undefined
+** behavior if a Java-side UDF holds a reference to its context or one
+** of its arguments. This MUST be called from any function which
+** successfully calls udf_args(), after calling the corresponding UDF
+** and checking its exception status, or which Java-wraps a
+** sqlite3_context for use with a UDF(ish) call. It MUST NOT be called
+** in any other case.
+*/
+static void udf_unargs(JNIEnv *env, jobject jCx, int argc, jobjectArray jArgv){
+  int i = 0;
+  assert(jCx);
+  NativePointerHolder_set(S3JniNph(sqlite3_context), jCx, 0);
+  for( ; i < argc; ++i ){
+    jobject jsv = (*env)->GetObjectArrayElement(env, jArgv, i);
+    /*
+    ** There is a potential Java-triggerable case of Undefined
+    ** Behavior here, but it would require intentional misuse of the
+    ** API:
+    **
+    ** If a Java UDF grabs an sqlite3_value from its argv and then
+    ** assigns that element to null, it becomes unreachable to us so
+    ** we cannot clear out its pointer. That Java-side object's
+    ** getNativePointer() will then refer to a stale value, so passing
+    ** it into (e.g.) sqlite3_value_SOMETHING() would invoke UB.
+    **
+    ** High-level wrappers can avoid that possibility if they do not
+    ** expose sqlite3_value directly to clients (as is the case in
+    ** org.sqlite.jni.wrapper1.SqlFunction).
+    **
+    ** One potential (but expensive) workaround for this would be to
+    ** privately store a duplicate argv array in each sqlite3_context
+    ** wrapper object, and clear the native pointers from that copy.
+    */
+    assert(jsv && "Someone illegally modified a UDF argument array.");
+    if( jsv ){
+      NativePointerHolder_set(S3JniNph(sqlite3_value), jsv, 0);
+    }
+  }
+}
+
+
+/*
+** Must be called immediately after a Java-side UDF callback throws.
+** If translateToErr is true then it sets the exception's message in
+** the result error using sqlite3_result_error(). If translateToErr is
+** false then it emits a warning that the function threw but should
+** not do so. In either case, it clears the exception state.
+**
+** Returns SQLITE_NOMEM if an allocation fails, else SQLITE_ERROR. In
+** the former case it calls sqlite3_result_error_nomem().
+*/
+static int udf_report_exception(JNIEnv * const env, int translateToErr,
+                                sqlite3_context * cx,
+                                const char *zFuncName, const char *zFuncType ){
+  jthrowable const ex = (*env)->ExceptionOccurred(env);
+  int rc = SQLITE_ERROR;
+
+  assert(ex && "This must only be called when a Java exception is pending.");
+  if( translateToErr ){
+    char * zMsg;
+    char * z;
+
+    S3JniExceptionClear;
+    zMsg = s3jni_exception_error_msg(env, ex);
+    z = sqlite3_mprintf("Client-defined SQL function %s.%s() threw: %s",
+                        zFuncName ? zFuncName : "<unnamed>", zFuncType,
+                        zMsg ? zMsg : "Unknown exception" );
+    sqlite3_free(zMsg);
+    if( z ){
+      sqlite3_result_error(cx, z, -1);
+      sqlite3_free(z);
+    }else{
+      sqlite3_result_error_nomem(cx);
+      rc = SQLITE_NOMEM;
+    }
+  }else{
+    S3JniExceptionWarnCallbackThrew("client-defined SQL function");
+    S3JniExceptionClear;
+  }
+  S3JniUnrefLocal(ex);
+  return rc;
+}
+
+/*
+** Sets up the state for calling a Java-side xFunc/xStep/xInverse()
+** UDF, calls it, and returns 0 on success.
+*/
+static int udf_xFSI(sqlite3_context* const pCx, int argc,
+                    sqlite3_value** const argv, S3JniUdf * const s,
+                    jmethodID xMethodID, const char * const zFuncType){
+  S3JniDeclLocal_env;
+  udf_jargs args = {0,0};
+  int rc = udf_args(env, pCx, argc, argv, &args.jcx, &args.jargv);
+
+  if( 0 == rc ){
+    (*env)->CallVoidMethod(env, s->jObj, xMethodID, args.jcx, args.jargv);
+    S3JniIfThrew{
+      rc = udf_report_exception(env, 'F'==zFuncType[1]/*xFunc*/, pCx,
+                                s->zFuncName, zFuncType);
+    }
+    udf_unargs(env, args.jcx, argc, args.jargv);
+  }
+  S3JniUnrefLocal(args.jcx);
+  S3JniUnrefLocal(args.jargv);
+  return rc;
+}
+
+/*
+** Sets up the state for calling a Java-side xFinal/xValue() UDF,
+** calls it, and returns 0 on success.
+*/
+static int udf_xFV(sqlite3_context* cx, S3JniUdf * s,
+                   jmethodID xMethodID,
+                   const char *zFuncType){
+  S3JniDeclLocal_env;
+  jobject jcx = new_java_sqlite3_context(env, cx);
+  int rc = 0;
+  int const isFinal = 'F'==zFuncType[1]/*xFinal*/;
+
+  if( jcx ){
+    (*env)->CallVoidMethod(env, s->jObj, xMethodID, jcx);
+    S3JniIfThrew{
+      rc = udf_report_exception(env, isFinal, cx, s->zFuncName,
+                                zFuncType);
+    }
+    udf_unargs(env, jcx, 0, 0);
+    S3JniUnrefLocal(jcx);
+  }else{
+    if( isFinal ) sqlite3_result_error_nomem(cx);
+    rc = SQLITE_NOMEM;
+  }
+  return rc;
+}
+
+/* Proxy for C-to-Java xFunc. */
+static void udf_xFunc(sqlite3_context* cx, int argc,
+                      sqlite3_value** argv){
+  S3JniUdf * const s = (S3JniUdf*)sqlite3_user_data(cx);
+  s3jni_incr( &SJG.metrics.udf.nFunc );
+  udf_xFSI(cx, argc, argv, s, s->jmidxFunc, "xFunc");
+}
+/* Proxy for C-to-Java xStep. */
+static void udf_xStep(sqlite3_context* cx, int argc,
+                      sqlite3_value** argv){
+  S3JniUdf * const s = (S3JniUdf*)sqlite3_user_data(cx);
+  s3jni_incr( &SJG.metrics.udf.nStep );
+  udf_xFSI(cx, argc, argv, s, s->jmidxStep, "xStep");
+}
+/* Proxy for C-to-Java xFinal. */
+static void udf_xFinal(sqlite3_context* cx){
+  S3JniUdf * const s = (S3JniUdf*)sqlite3_user_data(cx);
+  s3jni_incr( &SJG.metrics.udf.nFinal );
+  udf_xFV(cx, s, s->jmidxFinal, "xFinal");
+}
+/* Proxy for C-to-Java xValue. */
+static void udf_xValue(sqlite3_context* cx){
+  S3JniUdf * const s = (S3JniUdf*)sqlite3_user_data(cx);
+  s3jni_incr( &SJG.metrics.udf.nValue );
+  udf_xFV(cx, s, s->jmidxValue, "xValue");
+}
+/* Proxy for C-to-Java xInverse. */
+static void udf_xInverse(sqlite3_context* cx, int argc,
+                         sqlite3_value** argv){
+  S3JniUdf * const s = (S3JniUdf*)sqlite3_user_data(cx);
+  s3jni_incr( &SJG.metrics.udf.nInverse );
+  udf_xFSI(cx, argc, argv, s, s->jmidxInverse, "xInverse");
+}
+
+
+////////////////////////////////////////////////////////////////////////
+// What follows is the JNI/C bindings. They are in alphabetical order
+// except for this macro-generated subset which are kept together
+// (alphabetized) here at the front...
+////////////////////////////////////////////////////////////////////////
+
+/** Create a trivial JNI wrapper for (int CName(void)). */
+#define WRAP_INT_VOID(JniNameSuffix,CName)      \
+  JniDecl(jint,JniNameSuffix)(JniArgsEnvClass){ \
+    return (jint)CName();                       \
+  }
+/** Create a trivial JNI wrapper for (int CName(int)). */
+#define WRAP_INT_INT(JniNameSuffix,CName)                 \
+  JniDecl(jint,JniNameSuffix)(JniArgsEnvClass, jint arg){ \
+    return (jint)CName((int)arg);                         \
+  }
+/*
+** Create a trivial JNI wrapper for (const mutf8_string *
+** CName(void)). This is only valid for functions which are known to
+** return ASCII or text which is equivalent in UTF-8 and MUTF-8.
+*/
+#define WRAP_MUTF8_VOID(JniNameSuffix,CName)                   \
+  JniDecl(jstring,JniNameSuffix)(JniArgsEnvClass){             \
+    jstring const rv = (*env)->NewStringUTF( env, CName() );   \
+    s3jni_oom_check(rv);                                       \
+    return rv;                                                 \
+  }
+/** Create a trivial JNI wrapper for (int CName(sqlite3_stmt*)). */
+#define WRAP_INT_STMT(JniNameSuffix,CName)                    \
+  JniDecl(jint,JniNameSuffix)(JniArgsEnvClass, jlong jpStmt){ \
+    return (jint)CName(LongPtrGet_sqlite3_stmt(jpStmt));    \
+  }
+/** Create a trivial JNI wrapper for (int CName(sqlite3_stmt*,int)). */
+#define WRAP_INT_STMT_INT(JniNameSuffix,CName)                         \
+  JniDecl(jint,JniNameSuffix)(JniArgsEnvClass, jlong jpStmt, jint n){ \
+    return (jint)CName(LongPtrGet_sqlite3_stmt(jpStmt), (int)n);            \
+  }
+/** Create a trivial JNI wrapper for (boolean CName(sqlite3_stmt*)). */
+#define WRAP_BOOL_STMT(JniNameSuffix,CName)                           \
+  JniDecl(jboolean,JniNameSuffix)(JniArgsEnvClass, jobject jStmt){     \
+    return CName(PtrGet_sqlite3_stmt(jStmt)) ? JNI_TRUE : JNI_FALSE; \
+  }
+/** Create a trivial JNI wrapper for (jstring CName(sqlite3_stmt*,int)). */
+#define WRAP_STR_STMT_INT(JniNameSuffix,CName)                             \
+  JniDecl(jstring,JniNameSuffix)(JniArgsEnvClass, jlong jpStmt, jint ndx){ \
+    return s3jni_utf8_to_jstring(                                       \
+      CName(LongPtrGet_sqlite3_stmt(jpStmt), (int)ndx),               \
+      -1);                                                              \
+  }
+/** Create a trivial JNI wrapper for (boolean CName(sqlite3*)). */
+#define WRAP_BOOL_DB(JniNameSuffix,CName)                           \
+  JniDecl(jboolean,JniNameSuffix)(JniArgsEnvClass, jlong jpDb){     \
+    return CName(LongPtrGet_sqlite3(jpDb)) ? JNI_TRUE : JNI_FALSE; \
+  }
+/** Create a trivial JNI wrapper for (int CName(sqlite3*)). */
+#define WRAP_INT_DB(JniNameSuffix,CName)                    \
+  JniDecl(jint,JniNameSuffix)(JniArgsEnvClass, jlong jpDb){ \
+  return (jint)CName(LongPtrGet_sqlite3(jpDb)); \
+  }
+/** Create a trivial JNI wrapper for (int64 CName(sqlite3*)). */
+#define WRAP_INT64_DB(JniNameSuffix,CName)                   \
+  JniDecl(jlong,JniNameSuffix)(JniArgsEnvClass, jlong jpDb){ \
+  return (jlong)CName(LongPtrGet_sqlite3(jpDb));  \
+  }
+/** Create a trivial JNI wrapper for (jstring CName(sqlite3*,int)). */
+#define WRAP_STR_DB_INT(JniNameSuffix,CName)                             \
+  JniDecl(jstring,JniNameSuffix)(JniArgsEnvClass, jlong jpDb, jint ndx){ \
+    return s3jni_utf8_to_jstring(                                       \
+      CName(LongPtrGet_sqlite3(jpDb), (int)ndx),               \
+      -1);                                                              \
+  }
+/** Create a trivial JNI wrapper for (int CName(sqlite3_value*)). */
+#define WRAP_INT_SVALUE(JniNameSuffix,CName,DfltOnNull)         \
+  JniDecl(jint,JniNameSuffix)(JniArgsEnvClass, jlong jpSValue){ \
+    sqlite3_value * const sv = LongPtrGet_sqlite3_value(jpSValue); \
+    return (jint)(sv ? CName(sv): DfltOnNull);                      \
+  }
+/** Create a trivial JNI wrapper for (boolean CName(sqlite3_value*)). */
+#define WRAP_BOOL_SVALUE(JniNameSuffix,CName,DfltOnNull)            \
+  JniDecl(jboolean,JniNameSuffix)(JniArgsEnvClass, jlong jpSValue){ \
+    sqlite3_value * const sv = LongPtrGet_sqlite3_value(jpSValue); \
+    return (jint)(sv ? CName(sv) : DfltOnNull)                       \
+      ? JNI_TRUE : JNI_FALSE;                                       \
+  }
+
+WRAP_INT_DB(1changes,                  sqlite3_changes)
+WRAP_INT64_DB(1changes64,              sqlite3_changes64)
+WRAP_INT_STMT(1clear_1bindings,        sqlite3_clear_bindings)
+WRAP_INT_STMT_INT(1column_1bytes,      sqlite3_column_bytes)
+WRAP_INT_STMT_INT(1column_1bytes16,    sqlite3_column_bytes16)
+WRAP_INT_STMT(1column_1count,          sqlite3_column_count)
+WRAP_STR_STMT_INT(1column_1decltype,   sqlite3_column_decltype)
+WRAP_STR_STMT_INT(1column_1name,       sqlite3_column_name)
+#ifdef SQLITE_ENABLE_COLUMN_METADATA
+WRAP_STR_STMT_INT(1column_1database_1name,  sqlite3_column_database_name)
+WRAP_STR_STMT_INT(1column_1origin_1name,    sqlite3_column_origin_name)
+WRAP_STR_STMT_INT(1column_1table_1name,     sqlite3_column_table_name)
+#endif
+WRAP_INT_STMT_INT(1column_1type,       sqlite3_column_type)
+WRAP_INT_STMT(1data_1count,            sqlite3_data_count)
+WRAP_STR_DB_INT(1db_1name,             sqlite3_db_name)
+WRAP_INT_DB(1error_1offset,            sqlite3_error_offset)
+WRAP_INT_DB(1extended_1errcode,        sqlite3_extended_errcode)
+WRAP_BOOL_DB(1get_1autocommit,         sqlite3_get_autocommit)
+WRAP_MUTF8_VOID(1libversion,           sqlite3_libversion)
+WRAP_INT_VOID(1libversion_1number,     sqlite3_libversion_number)
+WRAP_INT_VOID(1keyword_1count,         sqlite3_keyword_count)
+#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
+WRAP_INT_DB(1preupdate_1blobwrite,     sqlite3_preupdate_blobwrite)
+WRAP_INT_DB(1preupdate_1count,         sqlite3_preupdate_count)
+WRAP_INT_DB(1preupdate_1depth,         sqlite3_preupdate_depth)
+#endif
+WRAP_INT_INT(1release_1memory,         sqlite3_release_memory)
+WRAP_INT_INT(1sleep,                   sqlite3_sleep)
+WRAP_MUTF8_VOID(1sourceid,             sqlite3_sourceid)
+WRAP_BOOL_STMT(1stmt_1busy,            sqlite3_stmt_busy)
+WRAP_INT_STMT_INT(1stmt_1explain,      sqlite3_stmt_explain)
+WRAP_INT_STMT(1stmt_1isexplain,        sqlite3_stmt_isexplain)
+WRAP_BOOL_STMT(1stmt_1readonly,        sqlite3_stmt_readonly)
+WRAP_INT_DB(1system_1errno,            sqlite3_system_errno)
+WRAP_INT_VOID(1threadsafe,             sqlite3_threadsafe)
+WRAP_INT_DB(1total_1changes,           sqlite3_total_changes)
+WRAP_INT64_DB(1total_1changes64,       sqlite3_total_changes64)
+WRAP_INT_SVALUE(1value_1encoding,      sqlite3_value_encoding,SQLITE_UTF8)
+WRAP_BOOL_SVALUE(1value_1frombind,     sqlite3_value_frombind,0)
+WRAP_INT_SVALUE(1value_1nochange,      sqlite3_value_nochange,0)
+WRAP_INT_SVALUE(1value_1numeric_1type, sqlite3_value_numeric_type,SQLITE_NULL)
+WRAP_INT_SVALUE(1value_1subtype,       sqlite3_value_subtype,0)
+WRAP_INT_SVALUE(1value_1type,          sqlite3_value_type,SQLITE_NULL)
+
+#undef WRAP_BOOL_DB
+#undef WRAP_BOOL_STMT
+#undef WRAP_BOOL_SVALUE
+#undef WRAP_INT64_DB
+#undef WRAP_INT_DB
+#undef WRAP_INT_INT
+#undef WRAP_INT_STMT
+#undef WRAP_INT_STMT_INT
+#undef WRAP_INT_SVALUE
+#undef WRAP_INT_VOID
+#undef WRAP_MUTF8_VOID
+#undef WRAP_STR_STMT_INT
+#undef WRAP_STR_DB_INT
+
+S3JniApi(sqlite3_aggregate_context(),jlong,1aggregate_1context)(
+  JniArgsEnvClass, jobject jCx, jboolean initialize
+){
+  sqlite3_context * const pCx = PtrGet_sqlite3_context(jCx);
+  void * const p = pCx
+    ? sqlite3_aggregate_context(pCx, (int)(initialize
+                                           ? (int)sizeof(void*)
+                                           : 0))
+    : 0;
+  return S3JniCast_P2L(p);
+}
+
+/*
+** Central auto-extension runner for auto-extensions created in Java.
+*/
+static int s3jni_run_java_auto_extensions(sqlite3 *pDb, const char **pzErr,
+                                          const struct sqlite3_api_routines *ignored){
+  int rc = 0;
+  unsigned i, go = 1;
+  JNIEnv * env = 0;
+  S3JniDb * ps;
+  S3JniEnv * jc;
+
+  if( 0==SJG.autoExt.nExt ) return 0;
+  env = s3jni_env();
+  jc = S3JniEnv_get();
+  S3JniDb_mutex_enter;
+  ps = jc->pdbOpening ? jc->pdbOpening : S3JniDb_from_c(pDb);
+  if( !ps ){
+    *pzErr = sqlite3_mprintf("Unexpected arrival of null S3JniDb in "
+                             "auto-extension runner.");
+    S3JniDb_mutex_leave;
+    return SQLITE_ERROR;
+  }
+  assert( ps->jDb );
+  if( !ps->pDb ){
+    assert( jc->pdbOpening == ps );
+    rc = sqlite3_set_clientdata(pDb, S3JniDb_clientdata_key,
+                                ps, 0/* we'll re-set this after open()
+                                        completes. */);
+    if( rc ){
+      S3JniDb_mutex_leave;
+      return rc;
+    }
+  }
+  else{
+    assert( ps == jc->pdbOpening );
+    jc->pdbOpening = 0;
+  }
+  S3JniDb_mutex_leave;
+  NativePointerHolder_set(S3JniNph(sqlite3), ps->jDb, pDb)
+    /* As of here, the Java/C connection is complete except for the
+       (temporary) lack of finalizer for the ps object. */;
+  ps->pDb = pDb;
+  for( i = 0; go && 0==rc; ++i ){
+    S3JniAutoExtension ax = S3JniHook_empty
+      /* We need a copy of the auto-extension object, with our own
+      ** local reference to it, to avoid a race condition with another
+      ** thread manipulating the list during the call and invaliding
+      ** what ax references. */;
+    S3JniAutoExt_mutex_enter;
+    if( i >= SJG.autoExt.nExt ){
+      go = 0;
+    }else{
+      S3JniHook_localdup(&SJG.autoExt.aExt[i], &ax);
+    }
+    S3JniAutoExt_mutex_leave;
+    if( ax.jObj ){
+      rc = (*env)->CallIntMethod(env, ax.jObj, ax.midCallback, ps->jDb);
+      S3JniHook_localundup(ax);
+      S3JniIfThrew {
+        jthrowable const ex = (*env)->ExceptionOccurred(env);
+        char * zMsg;
+        S3JniExceptionClear;
+        zMsg = s3jni_exception_error_msg(env, ex);
+        S3JniUnrefLocal(ex);
+        *pzErr = sqlite3_mprintf("auto-extension threw: %s", zMsg);
+        sqlite3_free(zMsg);
+        rc = SQLITE_ERROR;
+      }
+    }
+  }
+  return rc;
+}
+
+S3JniApi(sqlite3_auto_extension(),jint,1auto_1extension)(
+  JniArgsEnvClass, jobject jAutoExt
+){
+  int i;
+  S3JniAutoExtension * ax = 0;
+  int rc = 0;
+
+  if( !jAutoExt ) return SQLITE_MISUSE;
+  S3JniAutoExt_mutex_enter;
+  for( i = 0; i < SJG.autoExt.nExt; ++i ){
+    /* Look for a match. */
+    ax = &SJG.autoExt.aExt[i];
+    if( ax->jObj && (*env)->IsSameObject(env, ax->jObj, jAutoExt) ){
+      /* same object, so this is a no-op. */
+      S3JniAutoExt_mutex_leave;
+      return 0;
+    }
+  }
+  if( i == SJG.autoExt.nExt ){
+    assert( SJG.autoExt.nExt <= SJG.autoExt.nAlloc );
+    if( SJG.autoExt.nExt == SJG.autoExt.nAlloc ){
+      /* Allocate another slot. */
+      unsigned n = 1 + SJG.autoExt.nAlloc;
+      S3JniAutoExtension * const aNew =
+        s3jni_realloc( SJG.autoExt.aExt, n * sizeof(*ax) );
+      if( !aNew ){
+        rc = SQLITE_NOMEM;
+      }else{
+        SJG.autoExt.aExt = aNew;
+        ++SJG.autoExt.nAlloc;
+      }
+    }
+    if( 0==rc ){
+      ax = &SJG.autoExt.aExt[SJG.autoExt.nExt];
+      rc = S3JniAutoExtension_init(env, ax, jAutoExt);
+      assert( rc ? (0==ax->jObj && 0==ax->midCallback)
+              : (0!=ax->jObj && 0!=ax->midCallback) );
+    }
+  }
+  if( 0==rc ){
+    static int once = 0;
+    if( 0==once && ++once ){
+      rc = sqlite3_auto_extension(
+        (void(*)(void))s3jni_run_java_auto_extensions
+        /* Reminder: the JNI binding of sqlite3_reset_auto_extension()
+        ** does not call the core-lib impl. It only clears Java-side
+        ** auto-extensions. */
+      );
+      if( rc ){
+        assert( ax );
+        S3JniAutoExtension_clear(ax);
+      }
+    }
+    if( 0==rc ){
+      ++SJG.autoExt.nExt;
+    }
+  }
+  S3JniAutoExt_mutex_leave;
+  return rc;
+}
+
+S3JniApi(sqlite3_backup_finish(),jint,1backup_1finish)(
+  JniArgsEnvClass, jlong jpBack
+){
+  int rc = 0;
+  if( jpBack!=0 ){
+    rc = sqlite3_backup_finish( LongPtrGet_sqlite3_backup(jpBack) );
+  }
+  return rc;
+}
+
+S3JniApi(sqlite3_backup_init(),jobject,1backup_1init)(
+  JniArgsEnvClass, jlong jpDbDest, jstring jTDest,
+  jlong jpDbSrc, jstring jTSrc
+){
+  sqlite3 * const pDest = LongPtrGet_sqlite3(jpDbDest);
+  sqlite3 * const pSrc = LongPtrGet_sqlite3(jpDbSrc);
+  char * const zDest = s3jni_jstring_to_utf8(jTDest, 0);
+  char * const zSrc = s3jni_jstring_to_utf8(jTSrc, 0);
+  jobject rv = 0;
+
+  if( pDest && pSrc && zDest && zSrc ){
+    sqlite3_backup * const pB =
+      sqlite3_backup_init(pDest, zDest, pSrc, zSrc);
+    if( pB ){
+      rv = new_java_sqlite3_backup(env, pB);
+      if( !rv ){
+        sqlite3_backup_finish( pB );
+      }
+    }
+  }
+  sqlite3_free(zDest);
+  sqlite3_free(zSrc);
+  return rv;
+}
+
+S3JniApi(sqlite3_backup_pagecount(),jint,1backup_1pagecount)(
+  JniArgsEnvClass, jlong jpBack
+){
+  return sqlite3_backup_pagecount(LongPtrGet_sqlite3_backup(jpBack));
+}
+
+S3JniApi(sqlite3_backup_remaining(),jint,1backup_1remaining)(
+  JniArgsEnvClass, jlong jpBack
+){
+  return sqlite3_backup_remaining(LongPtrGet_sqlite3_backup(jpBack));
+}
+
+S3JniApi(sqlite3_backup_step(),jint,1backup_1step)(
+  JniArgsEnvClass, jlong jpBack, jint nPage
+){
+  return sqlite3_backup_step(LongPtrGet_sqlite3_backup(jpBack), (int)nPage);
+}
+
+S3JniApi(sqlite3_bind_blob(),jint,1bind_1blob)(
+  JniArgsEnvClass, jlong jpStmt, jint ndx, jbyteArray baData, jint nMax
+){
+  jsize nBA = 0;
+  jbyte * const pBuf = baData ? s3jni_jbyteArray_bytes2(baData, &nBA) : 0;
+  int rc;
+  if( pBuf ){
+    if( nMax>nBA ){
+      nMax = nBA;
+    }
+    rc = sqlite3_bind_blob(LongPtrGet_sqlite3_stmt(jpStmt), (int)ndx,
+                           pBuf, (int)nMax, SQLITE_TRANSIENT);
+    s3jni_jbyteArray_release(baData, pBuf);
+  }else{
+    rc = baData
+      ? SQLITE_NOMEM
+      : sqlite3_bind_null( LongPtrGet_sqlite3_stmt(jpStmt), ndx );
+  }
+  return (jint)rc;
+}
+
+/**
+   Helper for use with s3jni_setup_nio_args().
+*/
+struct S3JniNioArgs {
+  jobject jBuf;        /* input - ByteBuffer */
+  jint iOffset;        /* input - byte offset */
+  jint iHowMany;       /* input - byte count to bind/read/write */
+  jint nBuf;           /* output - jBuf's buffer size */
+  void * p;            /* output - jBuf's buffer memory */
+  void * pStart;       /* output - offset of p to bind/read/write */
+  int nOut;            /* output - number of bytes from pStart to bind/read/write */
+};
+typedef struct S3JniNioArgs S3JniNioArgs;
+static const S3JniNioArgs S3JniNioArgs_empty = {
+  0,0,0,0,0,0,0
+};
+
+/*
+** Internal helper for sqlite3_bind_nio_buffer(),
+** sqlite3_result_nio_buffer(), and similar methods which take a
+** ByteBuffer object as either input or output. Populates pArgs and
+** returns 0 on success, non-0 if the operation should fail. The
+** caller is required to check for SJG.g.byteBuffer.klazz!=0 before calling
+** this and reporting it in a way appropriate for that routine.  This
+** function may assert() that SJG.g.byteBuffer.klazz is not 0.
+**
+** The (jBuffer, iOffset, iHowMany) arguments are the (ByteBuffer, offset,
+** length) arguments to the bind/result method.
+**
+** If iHowMany is negative then it's treated as "until the end" and
+** the calculated slice is trimmed to fit if needed. If iHowMany is
+** positive and extends past the end of jBuffer then SQLITE_ERROR is
+** returned.
+**
+** Returns 0 if everything looks to be in order, else some SQLITE_...
+** result code
+*/
+static int s3jni_setup_nio_args(
+  JNIEnv *env, S3JniNioArgs * pArgs,
+  jobject jBuffer, jint iOffset, jint iHowMany
+){
+  jlong iEnd = 0;
+  const int bAllowTruncate = iHowMany<0;
+  *pArgs = S3JniNioArgs_empty;
+  pArgs->jBuf = jBuffer;
+  pArgs->iOffset = iOffset;
+  pArgs->iHowMany = iHowMany;
+  assert( SJG.g.byteBuffer.klazz );
+  if( pArgs->iOffset<0 ){
+    return SQLITE_ERROR
+      /* SQLITE_MISUSE or SQLITE_RANGE would fit better but we use
+         SQLITE_ERROR for consistency with the code documented for a
+         negative target blob offset in sqlite3_blob_read/write(). */;
+  }
+  s3jni_get_nio_buffer(pArgs->jBuf, &pArgs->p, &pArgs->nBuf);
+  if( !pArgs->p ){
+    return SQLITE_MISUSE;
+  }else if( pArgs->iOffset>=pArgs->nBuf ){
+    pArgs->pStart = 0;
+    pArgs->nOut = 0;
+    return 0;
+  }
+  assert( pArgs->nBuf > 0 );
+  assert( pArgs->iOffset < pArgs->nBuf );
+  iEnd = pArgs->iHowMany<0
+    ? pArgs->nBuf - pArgs->iOffset
+    : pArgs->iOffset + pArgs->iHowMany;
+  if( iEnd>(jlong)pArgs->nBuf ){
+    if( bAllowTruncate ){
+      iEnd = pArgs->nBuf - pArgs->iOffset;
+    }else{
+      return SQLITE_ERROR
+        /* again: for consistency with blob_read/write(), though
+           SQLITE_MISUSE or SQLITE_RANGE would be a better fit. */;
+    }
+  }
+  if( iEnd - pArgs->iOffset > (jlong)SQLITE_MAX_LENGTH ){
+    return SQLITE_TOOBIG;
+  }
+  assert( pArgs->iOffset >= 0 );
+  assert( iEnd > pArgs->iOffset );
+  pArgs->pStart = pArgs->p + pArgs->iOffset;
+  pArgs->nOut = (int)(iEnd - pArgs->iOffset);
+  assert( pArgs->nOut > 0 );
+  assert( (pArgs->pStart + pArgs->nOut) <= (pArgs->p + pArgs->nBuf) );
+  return 0;
+}
+
+S3JniApi(sqlite3_bind_nio_buffer(),jint,1bind_1nio_1buffer)(
+  JniArgsEnvClass, jobject jpStmt, jint ndx, jobject jBuffer,
+  jint iOffset, jint iN
+){
+  sqlite3_stmt * pStmt = PtrGet_sqlite3_stmt(jpStmt);
+  S3JniNioArgs args;
+  int rc;
+  if( !pStmt || !SJG.g.byteBuffer.klazz ) return SQLITE_MISUSE;
+  rc = s3jni_setup_nio_args(env, &args, jBuffer, iOffset, iN);
+  if(rc){
+    return rc;
+  }else if( !args.pStart || !args.nOut ){
+    return sqlite3_bind_null(pStmt, ndx);
+  }
+  return sqlite3_bind_blob( pStmt, (int)ndx, args.pStart,
+                            args.nOut, SQLITE_TRANSIENT );
+}
+
+S3JniApi(sqlite3_bind_double(),jint,1bind_1double)(
+  JniArgsEnvClass, jlong jpStmt, jint ndx, jdouble val
+){
+  return (jint)sqlite3_bind_double(LongPtrGet_sqlite3_stmt(jpStmt),
+                                   (int)ndx, (double)val);
+}
+
+S3JniApi(sqlite3_bind_int(),jint,1bind_1int)(
+  JniArgsEnvClass, jlong jpStmt, jint ndx, jint val
+){
+  return (jint)sqlite3_bind_int(LongPtrGet_sqlite3_stmt(jpStmt), (int)ndx, (int)val);
+}
+
+S3JniApi(sqlite3_bind_int64(),jint,1bind_1int64)(
+  JniArgsEnvClass, jlong jpStmt, jint ndx, jlong val
+){
+  return (jint)sqlite3_bind_int64(LongPtrGet_sqlite3_stmt(jpStmt), (int)ndx, (sqlite3_int64)val);
+}
+
+/*
+** Bind a new global ref to Object `val` using sqlite3_bind_pointer().
+*/
+S3JniApi(sqlite3_bind_java_object(),jint,1bind_1java_1object)(
+  JniArgsEnvClass, jlong jpStmt, jint ndx, jobject val
+){
+  sqlite3_stmt * const pStmt = LongPtrGet_sqlite3_stmt(jpStmt);
+  int rc = SQLITE_MISUSE;
+
+  if(pStmt){
+    jobject const rv = S3JniRefGlobal(val);
+    if( rv ){
+      rc = sqlite3_bind_pointer(pStmt, ndx, rv, s3jni__value_jref_key,
+                                S3Jni_jobject_finalizer);
+    }else if(val){
+      rc = SQLITE_NOMEM;
+    }else{
+      rc = sqlite3_bind_null(pStmt, ndx);
+    }
+  }
+  return rc;
+}
+
+S3JniApi(sqlite3_bind_null(),jint,1bind_1null)(
+  JniArgsEnvClass, jlong jpStmt, jint ndx
+){
+  return (jint)sqlite3_bind_null(LongPtrGet_sqlite3_stmt(jpStmt), (int)ndx);
+}
+
+S3JniApi(sqlite3_bind_parameter_count(),jint,1bind_1parameter_1count)(
+  JniArgsEnvClass, jlong jpStmt
+){
+  return (jint)sqlite3_bind_parameter_count(LongPtrGet_sqlite3_stmt(jpStmt));
+}
+
+S3JniApi(sqlite3_bind_parameter_index(),jint,1bind_1parameter_1index)(
+  JniArgsEnvClass, jlong jpStmt, jbyteArray jName
+){
+  int rc = 0;
+  jbyte * const pBuf = s3jni_jbyteArray_bytes(jName);
+  if( pBuf ){
+    rc = sqlite3_bind_parameter_index(LongPtrGet_sqlite3_stmt(jpStmt),
+                                      (const char *)pBuf);
+    s3jni_jbyteArray_release(jName, pBuf);
+  }
+  return rc;
+}
+
+S3JniApi(sqlite3_bind_parameter_name(),jstring,1bind_1parameter_1name)(
+  JniArgsEnvClass, jlong jpStmt, jint ndx
+){
+  const char *z =
+    sqlite3_bind_parameter_name(LongPtrGet_sqlite3_stmt(jpStmt), (int)ndx);
+  return z ? s3jni_utf8_to_jstring(z, -1) : 0;
+}
+
+/*
+** Impl of sqlite3_bind_text/text16().
+*/
+static int s3jni__bind_text(int is16, JNIEnv *env, jlong jpStmt, jint ndx,
+                            jbyteArray baData, jint nMax){
+  jsize nBA = 0;
+  jbyte * const pBuf =
+    baData ? s3jni_jbyteArray_bytes2(baData, &nBA) : 0;
+  int rc;
+  if( pBuf ){
+    if( nMax>nBA ){
+      nMax = nBA;
+    }
+    /* Note that we rely on the Java layer having assured that baData
+       is NUL-terminated if nMax is negative. In order to avoid UB for
+       such cases, we do not expose the byte-limit arguments in the
+       public API. */
+    rc = is16
+      ? sqlite3_bind_text16(LongPtrGet_sqlite3_stmt(jpStmt), (int)ndx,
+                            pBuf, (int)nMax, SQLITE_TRANSIENT)
+      : sqlite3_bind_text(LongPtrGet_sqlite3_stmt(jpStmt), (int)ndx,
+                          (const char *)pBuf,
+                          (int)nMax, SQLITE_TRANSIENT);
+  }else{
+    rc = baData
+      ? sqlite3_bind_null(LongPtrGet_sqlite3_stmt(jpStmt), (int)ndx)
+      : SQLITE_NOMEM;
+  }
+  s3jni_jbyteArray_release(baData, pBuf);
+  return (jint)rc;
+
+}
+
+S3JniApi(sqlite3_bind_text(),jint,1bind_1text)(
+  JniArgsEnvClass, jlong jpStmt, jint ndx, jbyteArray baData, jint nMax
+){
+  return s3jni__bind_text(0, env, jpStmt, ndx, baData, nMax);
+}
+
+S3JniApi(sqlite3_bind_text16(),jint,1bind_1text16)(
+  JniArgsEnvClass, jlong jpStmt, jint ndx, jbyteArray baData, jint nMax
+){
+  return s3jni__bind_text(1, env, jpStmt, ndx, baData, nMax);
+}
+
+S3JniApi(sqlite3_bind_value(),jint,1bind_1value)(
+  JniArgsEnvClass, jlong jpStmt, jint ndx, jlong jpValue
+){
+  int rc = 0;
+  sqlite3_stmt * pStmt = LongPtrGet_sqlite3_stmt(jpStmt);
+  if( pStmt ){
+    sqlite3_value *v = LongPtrGet_sqlite3_value(jpValue);
+    if( v ){
+      rc = sqlite3_bind_value(pStmt, (int)ndx, v);
+    }else{
+      rc = sqlite3_bind_null(pStmt, (int)ndx);
+    }
+  }else{
+    rc = SQLITE_MISUSE;
+  }
+  return (jint)rc;
+}
+
+S3JniApi(sqlite3_bind_zeroblob(),jint,1bind_1zeroblob)(
+  JniArgsEnvClass, jlong jpStmt, jint ndx, jint n
+){
+  return (jint)sqlite3_bind_zeroblob(LongPtrGet_sqlite3_stmt(jpStmt),
+                                     (int)ndx, (int)n);
+}
+
+S3JniApi(sqlite3_bind_zeroblob64(),jint,1bind_1zeroblob64)(
+  JniArgsEnvClass, jlong jpStmt, jint ndx, jlong n
+){
+  return (jint)sqlite3_bind_zeroblob64(LongPtrGet_sqlite3_stmt(jpStmt),
+                                       (int)ndx, (sqlite3_uint64)n);
+}
+
+S3JniApi(sqlite3_blob_bytes(),jint,1blob_1bytes)(
+  JniArgsEnvClass, jlong jpBlob
+){
+  return sqlite3_blob_bytes(LongPtrGet_sqlite3_blob(jpBlob));
+}
+
+S3JniApi(sqlite3_blob_close(),jint,1blob_1close)(
+  JniArgsEnvClass, jlong jpBlob
+){
+  sqlite3_blob * const b = LongPtrGet_sqlite3_blob(jpBlob);
+  return b ? (jint)sqlite3_blob_close(b) : SQLITE_MISUSE;
+}
+
+S3JniApi(sqlite3_blob_open(),jint,1blob_1open)(
+  JniArgsEnvClass, jlong jpDb, jstring jDbName, jstring jTbl, jstring jCol,
+  jlong jRowId, jint flags, jobject jOut
+){
+  sqlite3 * const db = LongPtrGet_sqlite3(jpDb);
+  sqlite3_blob * pBlob = 0;
+  char * zDbName = 0, * zTableName = 0, * zColumnName = 0;
+  int rc;
+
+  if( !db || !jDbName || !jTbl || !jCol ) return SQLITE_MISUSE;
+  zDbName = s3jni_jstring_to_utf8(jDbName,0);
+  zTableName = zDbName ? s3jni_jstring_to_utf8(jTbl,0) : 0;
+  zColumnName = zTableName ? s3jni_jstring_to_utf8(jCol,0) : 0;
+  rc = zColumnName
+    ? sqlite3_blob_open(db, zDbName, zTableName, zColumnName,
+                        (sqlite3_int64)jRowId, (int)flags, &pBlob)
+    : SQLITE_NOMEM;
+  if( 0==rc ){
+    jobject rv = new_java_sqlite3_blob(env, pBlob);
+    if( !rv ){
+      sqlite3_blob_close(pBlob);
+      rc = SQLITE_NOMEM;
+    }
+    OutputPointer_set_obj(env, S3JniNph(OutputPointer_sqlite3_blob), jOut, rv);
+  }
+  sqlite3_free(zDbName);
+  sqlite3_free(zTableName);
+  sqlite3_free(zColumnName);
+  return rc;
+}
+
+S3JniApi(sqlite3_blob_read(),jint,1blob_1read)(
+  JniArgsEnvClass, jlong jpBlob, jbyteArray jTgt, jint iOffset
+){
+  jbyte * const pBa = s3jni_jbyteArray_bytes(jTgt);
+  int rc = jTgt ? (pBa ? SQLITE_MISUSE : SQLITE_NOMEM) : SQLITE_MISUSE;
+  if( pBa ){
+    jsize const nTgt = (*env)->GetArrayLength(env, jTgt);
+    rc = sqlite3_blob_read(LongPtrGet_sqlite3_blob(jpBlob), pBa,
+                           (int)nTgt, (int)iOffset);
+    if( 0==rc ){
+      s3jni_jbyteArray_commit(jTgt, pBa);
+    }else{
+      s3jni_jbyteArray_release(jTgt, pBa);
+    }
+  }
+  return rc;
+}
+
+S3JniApi(sqlite3_blob_read_nio_buffer(),jint,1blob_1read_1nio_1buffer)(
+  JniArgsEnvClass, jlong jpBlob, jint iSrcOff, jobject jBB, jint iTgtOff, jint iHowMany
+){
+  sqlite3_blob * const b = LongPtrGet_sqlite3_blob(jpBlob);
+  S3JniNioArgs args;
+  int rc;
+  if( !b || !SJG.g.byteBuffer.klazz || iHowMany<0 ){
+    return SQLITE_MISUSE;
+  }else if( iTgtOff<0 || iSrcOff<0 ){
+    return SQLITE_ERROR
+      /* for consistency with underlying sqlite3_blob_read() */;
+  }else if( 0==iHowMany ){
+    return 0;
+  }
+  rc = s3jni_setup_nio_args(env, &args, jBB, iTgtOff, iHowMany);
+  if(rc){
+    return rc;
+  }else if( !args.pStart || !args.nOut ){
+    return 0;
+  }
+  assert( args.iHowMany>0 );
+  return sqlite3_blob_read( b, args.pStart, (int)args.nOut, (int)iSrcOff );
+}
+
+S3JniApi(sqlite3_blob_reopen(),jint,1blob_1reopen)(
+  JniArgsEnvClass, jlong jpBlob, jlong iNewRowId
+){
+  return (jint)sqlite3_blob_reopen(LongPtrGet_sqlite3_blob(jpBlob),
+                                   (sqlite3_int64)iNewRowId);
+}
+
+S3JniApi(sqlite3_blob_write(),jint,1blob_1write)(
+  JniArgsEnvClass, jlong jpBlob, jbyteArray jBa, jint iOffset
+){
+  sqlite3_blob * const b = LongPtrGet_sqlite3_blob(jpBlob);
+  jbyte * const pBuf = b ? s3jni_jbyteArray_bytes(jBa) : 0;
+  const jsize nBA = pBuf ? (*env)->GetArrayLength(env, jBa) : 0;
+  int rc = SQLITE_MISUSE;
+  if(b && pBuf){
+    rc = sqlite3_blob_write( b, pBuf, (int)nBA, (int)iOffset );
+  }
+  s3jni_jbyteArray_release(jBa, pBuf);
+  return (jint)rc;
+}
+
+S3JniApi(sqlite3_blob_write_nio_buffer(),jint,1blob_1write_1nio_1buffer)(
+  JniArgsEnvClass, jlong jpBlob, jint iTgtOff, jobject jBB, jint iSrcOff, jint iHowMany
+){
+  sqlite3_blob * const b = LongPtrGet_sqlite3_blob(jpBlob);
+  S3JniNioArgs args;
+  int rc;
+  if( !b || !SJG.g.byteBuffer.klazz ){
+    return SQLITE_MISUSE;
+  }else if( iTgtOff<0 || iSrcOff<0 ){
+    return SQLITE_ERROR
+      /* for consistency with underlying sqlite3_blob_write() */;
+  }else if( 0==iHowMany ){
+    return 0;
+  }
+  rc = s3jni_setup_nio_args(env, &args, jBB, iSrcOff, iHowMany);
+  if(rc){
+    return rc;
+  }else if( !args.pStart || !args.nOut ){
+    return 0;
+  }
+  return sqlite3_blob_write( b, args.pStart, (int)args.nOut, (int)iTgtOff );
+}
+
+/* Central C-to-Java busy handler proxy. */
+static int s3jni_busy_handler(void* pState, int n){
+  S3JniDb * const ps = (S3JniDb *)pState;
+  int rc = 0;
+  S3JniDeclLocal_env;
+  S3JniHook hook;
+
+  S3JniHook_localdup(&ps->hooks.busyHandler, &hook);
+  if( hook.jObj ){
+    rc = (*env)->CallIntMethod(env, hook.jObj,
+                               hook.midCallback, (jint)n);
+    S3JniIfThrew{
+      S3JniExceptionWarnCallbackThrew("sqlite3_busy_handler() callback");
+      rc = s3jni_db_exception(ps->pDb, SQLITE_ERROR,
+                              "sqlite3_busy_handler() callback threw.");
+    }
+    S3JniHook_localundup(hook);
+  }
+  return rc;
+}
+
+S3JniApi(sqlite3_busy_handler(),jint,1busy_1handler)(
+  JniArgsEnvClass, jlong jpDb, jobject jBusy
+){
+  S3JniDb * const ps = S3JniDb_from_jlong(jpDb);
+  S3JniHook * const pHook = ps ? &ps->hooks.busyHandler : 0;
+  S3JniHook hook = S3JniHook_empty;
+  int rc = 0;
+
+  if( !ps ) return (jint)SQLITE_MISUSE;
+  S3JniDb_mutex_enter;
+  if( jBusy ){
+    if( pHook->jObj && (*env)->IsSameObject(env, pHook->jObj, jBusy) ){
+      /* Same object - this is a no-op. */
+    }else{
+      jclass const klazz = (*env)->GetObjectClass(env, jBusy);
+      hook.jObj = S3JniRefGlobal(jBusy);
+      hook.midCallback = (*env)->GetMethodID(env, klazz, "call", "(I)I");
+      S3JniUnrefLocal(klazz);
+      S3JniIfThrew {
+        rc = SQLITE_ERROR;
+      }
+    }
+  }
+  if( 0==rc ){
+    if( jBusy ){
+      if( hook.jObj ){ /* Replace handler */
+        rc = sqlite3_busy_handler(ps->pDb, s3jni_busy_handler, ps);
+        if( 0==rc ){
+          S3JniHook_unref(pHook);
+          *pHook = hook /* transfer Java ref ownership */;
+          hook = S3JniHook_empty;
+        }
+      }/* else no-op */
+    }else{ /* Clear handler */
+      rc = sqlite3_busy_handler(ps->pDb, 0, 0);
+      if( 0==rc ){
+        S3JniHook_unref(pHook);
+      }
+    }
+  }
+  S3JniHook_unref(&hook);
+  S3JniDb_mutex_leave;
+  return rc;
+}
+
+S3JniApi(sqlite3_busy_timeout(),jint,1busy_1timeout)(
+  JniArgsEnvClass, jlong jpDb, jint ms
+){
+  S3JniDb * const ps = S3JniDb_from_jlong(jpDb);
+  int rc = SQLITE_MISUSE;
+  if( ps ){
+    S3JniDb_mutex_enter;
+    S3JniHook_unref(&ps->hooks.busyHandler);
+    rc = sqlite3_busy_timeout(ps->pDb, (int)ms);
+    S3JniDb_mutex_leave;
+  }
+  return rc;
+}
+
+S3JniApi(sqlite3_cancel_auto_extension(),jboolean,1cancel_1auto_1extension)(
+  JniArgsEnvClass, jobject jAutoExt
+){
+  S3JniAutoExtension * ax;
+  jboolean rc = JNI_FALSE;
+  int i;
+
+  if( !jAutoExt ){
+    return rc;
+  }
+  S3JniAutoExt_mutex_enter;
+  /* This algo corresponds to the one in the core. */
+  for( i = SJG.autoExt.nExt-1; i >= 0; --i ){
+    ax = &SJG.autoExt.aExt[i];
+    if( ax->jObj && (*env)->IsSameObject(env, ax->jObj, jAutoExt) ){
+      S3JniAutoExtension_clear(ax);
+      /* Move final entry into this slot. */
+      --SJG.autoExt.nExt;
+      *ax = SJG.autoExt.aExt[SJG.autoExt.nExt];
+      SJG.autoExt.aExt[SJG.autoExt.nExt] = S3JniHook_empty;
+      assert( !SJG.autoExt.aExt[SJG.autoExt.nExt].jObj );
+      rc = JNI_TRUE;
+      break;
+    }
+  }
+  S3JniAutoExt_mutex_leave;
+  return rc;
+}
+
+/* Wrapper for sqlite3_close(_v2)(). */
+static jint s3jni_close_db(JNIEnv * const env, jlong jpDb, int version){
+  int rc = 0;
+  S3JniDb * const ps = S3JniDb_from_jlong(jpDb);
+
+  assert(version == 1 || version == 2);
+  if( ps ){
+    rc = 1==version
+      ? (jint)sqlite3_close(ps->pDb)
+      : (jint)sqlite3_close_v2(ps->pDb);
+  }
+  return (jint)rc;
+}
+
+S3JniApi(sqlite3_close(),jint,1close)(JniArgsEnvClass, jlong pDb){
+  return s3jni_close_db(env, pDb, 1);
+}
+
+S3JniApi(sqlite3_close_v2(),jint,1close_1v2)(JniArgsEnvClass, jlong pDb){
+  return s3jni_close_db(env, pDb, 2);
+}
+
+/*
+** Assumes z is an array of unsigned short and returns the index in
+** that array of the first element with the value 0.
+*/
+static unsigned int s3jni_utf16_strlen(void const * z){
+  unsigned int i = 0;
+  const unsigned short * p = z;
+  while( p[i] ) ++i;
+  return i;
+}
+
+/* Descriptive alias for use with sqlite3_collation_needed(). */
+typedef S3JniHook S3JniCollationNeeded;
+
+/* Central C-to-Java sqlite3_collation_needed16() hook impl. */
+static void s3jni_collation_needed_impl16(void *pState, sqlite3 *pDb,
+                                          int eTextRep, const void * z16Name){
+  S3JniCollationNeeded * const pHook = pState;
+  S3JniDeclLocal_env;
+  S3JniHook hook;
+
+  S3JniHook_localdup(pHook, &hook);
+  if( hook.jObj ){
+    unsigned int const nName = s3jni_utf16_strlen(z16Name);
+    jstring jName = (*env)->NewString(env, (jchar const *)z16Name, nName);
+
+    s3jni_oom_check( jName );
+    assert( hook.jExtra );
+    S3JniIfThrew{
+      S3JniExceptionClear;
+    }else if( hook.jExtra ){
+      (*env)->CallVoidMethod(env, hook.jObj, hook.midCallback,
+                             hook.jExtra, (jint)eTextRep, jName);
+      S3JniIfThrew{
+        S3JniExceptionWarnCallbackThrew("sqlite3_collation_needed() callback");
+      }
+    }
+    S3JniUnrefLocal(jName);
+    S3JniHook_localundup(hook);
+  }
+}
+
+S3JniApi(sqlite3_collation_needed(),jint,1collation_1needed)(
+  JniArgsEnvClass, jlong jpDb, jobject jHook
+){
+  S3JniDb * ps;
+  S3JniCollationNeeded * pHook;
+  int rc = 0;
+
+  S3JniDb_mutex_enter;
+  ps = S3JniDb_from_jlong(jpDb);
+  if( !ps ){
+    S3JniDb_mutex_leave;
+    return SQLITE_MISUSE;
+  }
+  pHook = &ps->hooks.collationNeeded;
+  if( pHook->jObj && jHook &&
+     (*env)->IsSameObject(env, pHook->jObj, jHook) ){
+    /* no-op */
+  }else if( !jHook ){
+    rc = sqlite3_collation_needed(ps->pDb, 0, 0);
+    if( 0==rc ){
+      S3JniHook_unref(pHook);
+    }
+  }else{
+    jclass const klazz = (*env)->GetObjectClass(env, jHook);
+    jmethodID const xCallback = (*env)->GetMethodID(
+      env, klazz, "call", "(Lorg/sqlite/jni/capi/sqlite3;ILjava/lang/String;)V"
+    );
+    S3JniUnrefLocal(klazz);
+    S3JniIfThrew {
+      rc = s3jni_db_exception(ps->pDb, SQLITE_MISUSE,
+                              "Cannot not find matching call() in "
+                              "CollationNeededCallback object.");
+    }else{
+      rc = sqlite3_collation_needed16(ps->pDb, pHook,
+                                      s3jni_collation_needed_impl16);
+      if( 0==rc ){
+        S3JniHook_unref(pHook);
+        pHook->midCallback = xCallback;
+        pHook->jObj = S3JniRefGlobal(jHook);
+        pHook->jExtra = S3JniRefGlobal(ps->jDb);
+      }
+    }
+  }
+  S3JniDb_mutex_leave;
+  return rc;
+}
+
+S3JniApi(sqlite3_column_blob(),jbyteArray,1column_1blob)(
+  JniArgsEnvClass, jobject jpStmt, jint ndx
+){
+  sqlite3_stmt * const pStmt = PtrGet_sqlite3_stmt(jpStmt);
+  void const * const p = sqlite3_column_blob(pStmt, (int)ndx);
+  int const n = p ? sqlite3_column_bytes(pStmt, (int)ndx) : 0;
+
+  return p ? s3jni_new_jbyteArray(p, n) : 0;
+}
+
+S3JniApi(sqlite3_column_double(),jdouble,1column_1double)(
+  JniArgsEnvClass, jobject jpStmt, jint ndx
+){
+  return (jdouble)sqlite3_column_double(PtrGet_sqlite3_stmt(jpStmt), (int)ndx);
+}
+
+S3JniApi(sqlite3_column_int(),jint,1column_1int)(
+  JniArgsEnvClass, jobject jpStmt, jint ndx
+){
+  return (jint)sqlite3_column_int(PtrGet_sqlite3_stmt(jpStmt), (int)ndx);
+}
+
+S3JniApi(sqlite3_column_int64(),jlong,1column_1int64)(
+  JniArgsEnvClass, jobject jpStmt, jint ndx
+){
+  return (jlong)sqlite3_column_int64(PtrGet_sqlite3_stmt(jpStmt), (int)ndx);
+}
+
+S3JniApi(sqlite3_column_java_object(),jobject,1column_1java_1object)(
+  JniArgsEnvClass, jlong jpStmt, jint ndx
+){
+  sqlite3_stmt * const stmt = LongPtrGet_sqlite3_stmt(jpStmt);
+  jobject rv = 0;
+  if( stmt ){
+    sqlite3 * const db = sqlite3_db_handle(stmt);
+    sqlite3_value * sv;
+    sqlite3_mutex_enter(sqlite3_db_mutex(db));
+    sv = sqlite3_column_value(stmt, (int)ndx);
+    if( sv ){
+      rv = S3JniRefLocal(
+        sqlite3_value_pointer(sv, s3jni__value_jref_key)
+      );
+    }
+    sqlite3_mutex_leave(sqlite3_db_mutex(db));
+  }
+  return rv;
+}
+
+S3JniApi(sqlite3_column_nio_buffer(),jobject,1column_1nio_1buffer)(
+  JniArgsEnvClass, jobject jStmt, jint ndx
+){
+  sqlite3_stmt * const stmt = PtrGet_sqlite3_stmt(jStmt);
+  jobject rv = 0;
+  if( stmt ){
+    const void * const p = sqlite3_column_blob(stmt, (int)ndx);
+    if( p ){
+      const int n = sqlite3_column_bytes(stmt, (int)ndx);
+      rv = s3jni__blob_to_ByteBuffer(env, p, n);
+    }
+  }
+  return rv;
+}
+
+S3JniApi(sqlite3_column_text(),jbyteArray,1column_1text)(
+  JniArgsEnvClass, jobject jpStmt, jint ndx
+){
+  sqlite3_stmt * const stmt = PtrGet_sqlite3_stmt(jpStmt);
+  const unsigned char * const p = stmt ? sqlite3_column_text(stmt, (int)ndx) : 0;
+  const int n = p ? sqlite3_column_bytes(stmt, (int)ndx) : 0;
+  return p ? s3jni_new_jbyteArray(p, n) : NULL;
+}
+
+#if 0
+// this impl might prove useful.
+S3JniApi(sqlite3_column_text(),jstring,1column_1text)(
+  JniArgsEnvClass, jobject jpStmt, jint ndx
+){
+  sqlite3_stmt * const stmt = PtrGet_sqlite3_stmt(jpStmt);
+  const unsigned char * const p = stmt ? sqlite3_column_text(stmt, (int)ndx) : 0;
+  const int n = p ? sqlite3_column_bytes(stmt, (int)ndx) : 0;
+  return p ? s3jni_utf8_to_jstring( (const char *)p, n) : 0;
+}
+#endif
+
+S3JniApi(sqlite3_column_text16(),jstring,1column_1text16)(
+  JniArgsEnvClass, jobject jpStmt, jint ndx
+){
+  sqlite3_stmt * const stmt = PtrGet_sqlite3_stmt(jpStmt);
+  const void * const p = stmt ? sqlite3_column_text16(stmt, (int)ndx) : 0;
+  const int n = p ? sqlite3_column_bytes16(stmt, (int)ndx) : 0;
+  return s3jni_text16_to_jstring(env, p, n);
+}
+
+S3JniApi(sqlite3_column_value(),jobject,1column_1value)(
+  JniArgsEnvClass, jobject jpStmt, jint ndx
+){
+  sqlite3_value * const sv =
+    sqlite3_column_value(PtrGet_sqlite3_stmt(jpStmt), (int)ndx)
+    /* reminder: returns an SQL NULL if jpStmt==NULL */;
+  return new_java_sqlite3_value(env, sv);
+}
+
+/*
+** Impl for commit hooks (if isCommit is true) or rollback hooks.
+*/
+static int s3jni_commit_rollback_hook_impl(int isCommit, S3JniDb * const ps){
+  S3JniDeclLocal_env;
+  int rc = 0;
+  S3JniHook hook;
+
+  S3JniHook_localdup(isCommit
+                     ? &ps->hooks.commit : &ps->hooks.rollback,
+                     &hook);
+  if( hook.jObj ){
+    rc = isCommit
+      ? (int)(*env)->CallIntMethod(env, hook.jObj, hook.midCallback)
+      : (int)((*env)->CallVoidMethod(env, hook.jObj, hook.midCallback), 0);
+    S3JniIfThrew{
+      rc = s3jni_db_exception(ps->pDb, SQLITE_ERROR,
+                              isCommit
+                              ? "Commit hook callback threw"
+                              : "Rollback hook callback threw");
+    }
+    S3JniHook_localundup(hook);
+  }
+  return rc;
+}
+
+/* C-to-Java commit hook wrapper. */
+static int s3jni_commit_hook_impl(void *pP){
+  return s3jni_commit_rollback_hook_impl(1, pP);
+}
+
+/* C-to-Java rollback hook wrapper. */
+static void s3jni_rollback_hook_impl(void *pP){
+  (void)s3jni_commit_rollback_hook_impl(0, pP);
+}
+
+/*
+** Proxy for sqlite3_commit_hook() (if isCommit is true) or
+** sqlite3_rollback_hook().
+*/
+static jobject s3jni_commit_rollback_hook(int isCommit, JNIEnv * const env,
+                                          jlong jpDb, jobject jHook){
+  S3JniDb * ps;
+  jobject pOld = 0;  /* previous hoook */
+  S3JniHook * pHook; /* ps->hooks.commit|rollback */
+
+  S3JniDb_mutex_enter;
+  ps = S3JniDb_from_jlong(jpDb);
+  if( !ps ){
+    s3jni_db_error(ps->pDb, SQLITE_MISUSE, 0);
+    S3JniDb_mutex_leave;
+    return 0;
+  }
+  pHook = isCommit ? &ps->hooks.commit : &ps->hooks.rollback;
+  pOld = pHook->jObj;
+  if( pOld && jHook &&
+      (*env)->IsSameObject(env, pOld, jHook) ){
+    /* No-op. */
+  }else if( !jHook ){
+    if( pOld ){
+      jobject tmp = S3JniRefLocal(pOld);
+      S3JniUnrefGlobal(pOld);
+      pOld = tmp;
+    }
+    *pHook = S3JniHook_empty;
+    if( isCommit ) sqlite3_commit_hook(ps->pDb, 0, 0);
+    else sqlite3_rollback_hook(ps->pDb, 0, 0);
+  }else{
+    jclass const klazz = (*env)->GetObjectClass(env, jHook);
+    jmethodID const xCallback = (*env)->GetMethodID(env, klazz, "call",
+                                                    isCommit ? "()I" : "()V");
+    S3JniUnrefLocal(klazz);
+    S3JniIfThrew {
+      S3JniExceptionReport;
+      S3JniExceptionClear;
+      s3jni_db_error(ps->pDb, SQLITE_ERROR,
+                     "Cannot not find matching call() method in"
+                     "hook object.");
+    }else{
+      pHook->midCallback = xCallback;
+      pHook->jObj = S3JniRefGlobal(jHook);
+      if( isCommit ) sqlite3_commit_hook(ps->pDb, s3jni_commit_hook_impl, ps);
+      else sqlite3_rollback_hook(ps->pDb, s3jni_rollback_hook_impl, ps);
+      if( pOld ){
+        jobject tmp = S3JniRefLocal(pOld);
+        S3JniUnrefGlobal(pOld);
+        pOld = tmp;
+      }
+    }
+  }
+  S3JniDb_mutex_leave;
+  return pOld;
+}
+
+S3JniApi(sqlite3_commit_hook(),jobject,1commit_1hook)(
+  JniArgsEnvClass, jlong jpDb, jobject jHook
+){
+  return s3jni_commit_rollback_hook(1, env, jpDb, jHook);
+}
+
+S3JniApi(sqlite3_compileoption_get(),jstring,1compileoption_1get)(
+  JniArgsEnvClass, jint n
+){
+  const char * z = sqlite3_compileoption_get(n);
+  jstring const rv = z ? (*env)->NewStringUTF( env, z ) : 0;
+    /* We know these to be ASCII, so MUTF-8 is fine. */;
+  s3jni_oom_check(z ? !!rv : 1);
+  return rv;
+}
+
+S3JniApi(sqlite3_compileoption_used(),jboolean,1compileoption_1used)(
+  JniArgsEnvClass, jstring name
+){
+  const char *zUtf8 = s3jni_jstring_to_mutf8(name)
+    /* We know these to be ASCII, so MUTF-8 is fine (and
+       hypothetically faster to convert). */;
+  const jboolean rc =
+    0==sqlite3_compileoption_used(zUtf8) ? JNI_FALSE : JNI_TRUE;
+  s3jni_mutf8_release(name, zUtf8);
+  return rc;
+}
+
+S3JniApi(sqlite3_complete(),jint,1complete)(
+  JniArgsEnvClass, jbyteArray jSql
+){
+  jbyte * const pBuf = s3jni_jbyteArray_bytes(jSql);
+  const jsize nBA = pBuf ? (*env)->GetArrayLength(env, jSql) : 0;
+  int rc;
+
+  assert( (nBA>0 ? 0==pBuf[nBA-1] : (pBuf ? 0==*pBuf : 1))
+          && "Byte array is not NUL-terminated." );
+  rc = (pBuf && 0==pBuf[(nBA ? nBA-1 : 0)])
+    ? sqlite3_complete( (const char *)pBuf )
+    : (jSql ? SQLITE_NOMEM : SQLITE_MISUSE);
+  s3jni_jbyteArray_release(jSql, pBuf);
+  return rc;
+}
+
+S3JniApi(sqlite3_config() /*for a small subset of options.*/
+         sqlite3_config__enable()/* internal name to avoid name-mangling issues*/,
+         jint,1config_1_1enable)(JniArgsEnvClass, jint n){
+  switch( n ){
+    case SQLITE_CONFIG_SINGLETHREAD:
+    case SQLITE_CONFIG_MULTITHREAD:
+    case SQLITE_CONFIG_SERIALIZED:
+      return sqlite3_config( n );
+    default:
+      return SQLITE_MISUSE;
+  }
+}
+/* C-to-Java SQLITE_CONFIG_LOG wrapper. */
+static void s3jni_config_log(void *ignored, int errCode, const char *z){
+  S3JniDeclLocal_env;
+  S3JniHook hook = S3JniHook_empty;
+
+  S3JniHook_localdup(&SJG.hook.configlog, &hook);
+  if( hook.jObj ){
+    jstring const jArg1 = z ? s3jni_utf8_to_jstring(z, -1) : 0;
+    if( z ? !!jArg1 : 1 ){
+      (*env)->CallVoidMethod(env, hook.jObj, hook.midCallback, errCode, jArg1);
+    }
+    S3JniIfThrew{
+      S3JniExceptionWarnCallbackThrew("SQLITE_CONFIG_LOG callback");
+      S3JniExceptionClear;
+    }
+    S3JniHook_localundup(hook);
+    S3JniUnrefLocal(jArg1);
+  }
+}
+
+S3JniApi(sqlite3_config() /* for SQLITE_CONFIG_LOG */
+         sqlite3_config__config_log() /* internal name */,
+         jint, 1config_1_1CONFIG_1LOG
+)(JniArgsEnvClass, jobject jLog){
+  S3JniHook * const pHook = &SJG.hook.configlog;
+  int rc = 0;
+
+  S3JniGlobal_mutex_enter;
+  if( !jLog ){
+    rc = sqlite3_config( SQLITE_CONFIG_LOG, NULL, NULL );
+    if( 0==rc ){
+      S3JniHook_unref(pHook);
+    }
+  }else if( pHook->jObj && (*env)->IsSameObject(env, jLog, pHook->jObj) ){
+    /* No-op */
+  }else {
+    jclass const klazz = (*env)->GetObjectClass(env, jLog);
+    jmethodID const midCallback = (*env)->GetMethodID(env, klazz, "call",
+                                                      "(ILjava/lang/String;)V");
+    S3JniUnrefLocal(klazz);
+    if( midCallback ){
+      rc = sqlite3_config( SQLITE_CONFIG_LOG, s3jni_config_log, NULL );
+      if( 0==rc ){
+        S3JniHook_unref(pHook);
+        pHook->midCallback = midCallback;
+        pHook->jObj = S3JniRefGlobal(jLog);
+      }
+    }else{
+      S3JniExceptionWarnIgnore;
+      rc = SQLITE_ERROR;
+    }
+  }
+  S3JniGlobal_mutex_leave;
+  return rc;
+}
+
+#ifdef SQLITE_ENABLE_SQLLOG
+/* C-to-Java SQLITE_CONFIG_SQLLOG wrapper. */
+static void s3jni_config_sqllog(void *ignored, sqlite3 *pDb, const char *z, int op){
+  jobject jArg0 = 0;
+  jstring jArg1 = 0;
+  S3JniDeclLocal_env;
+  S3JniDb * const ps = S3JniDb_from_c(pDb);
+  S3JniHook hook = S3JniHook_empty;
+
+  if( ps ){
+    S3JniHook_localdup(&SJG.hook.sqllog, &hook);
+  }
+  if( !hook.jObj ) return;
+  jArg0 = S3JniRefLocal(ps->jDb);
+  switch( op ){
+    case 0: /* db opened */
+    case 1: /* SQL executed */
+      jArg1 = s3jni_utf8_to_jstring( z, -1);
+      break;
+    case 2: /* db closed */
+      break;
+    default:
+      (*env)->FatalError(env, "Unhandled 4th arg to SQLITE_CONFIG_SQLLOG.");
+      break;
+  }
+  (*env)->CallVoidMethod(env, hook.jObj, hook.midCallback, jArg0, jArg1, op);
+  S3JniIfThrew{
+    S3JniExceptionWarnCallbackThrew("SQLITE_CONFIG_SQLLOG callback");
+    S3JniExceptionClear;
+  }
+  S3JniHook_localundup(hook);
+  S3JniUnrefLocal(jArg0);
+  S3JniUnrefLocal(jArg1);
+}
+//! Requirement of SQLITE_CONFIG_SQLLOG.
+void sqlite3_init_sqllog(void){
+  sqlite3_config( SQLITE_CONFIG_SQLLOG, s3jni_config_sqllog, 0 );
+}
+#endif
+
+S3JniApi(sqlite3_config() /* for SQLITE_CONFIG_SQLLOG */
+         sqlite3_config__SQLLOG() /*internal name*/,
+         jint, 1config_1_1SQLLOG
+)(JniArgsEnvClass, jobject jLog){
+#ifndef SQLITE_ENABLE_SQLLOG
+  return SQLITE_MISUSE;
+#else
+  S3JniHook * const pHook = &SJG.hook.sqllog;
+  int rc = 0;
+
+  S3JniGlobal_mutex_enter;
+  if( !jLog ){
+    rc = sqlite3_config( SQLITE_CONFIG_SQLLOG, NULL );
+    if( 0==rc ){
+      S3JniHook_unref(pHook);
+    }
+  }else if( pHook->jObj && (*env)->IsSameObject(env, jLog, pHook->jObj) ){
+    /* No-op */
+  }else {
+    jclass const klazz = (*env)->GetObjectClass(env, jLog);
+    jmethodID const midCallback = (*env)->GetMethodID(env, klazz, "call",
+                                                      "(Lorg/sqlite/jni/capi/sqlite3;"
+                                                      "Ljava/lang/String;"
+                                                      "I)V");
+    S3JniUnrefLocal(klazz);
+    if( midCallback ){
+      rc = sqlite3_config( SQLITE_CONFIG_SQLLOG, s3jni_config_sqllog, NULL );
+      if( 0==rc ){
+        S3JniHook_unref(pHook);
+        pHook->midCallback = midCallback;
+        pHook->jObj = S3JniRefGlobal(jLog);
+      }
+    }else{
+      S3JniExceptionWarnIgnore;
+      rc = SQLITE_ERROR;
+    }
+  }
+  S3JniGlobal_mutex_leave;
+  return rc;
+#endif
+}
+
+S3JniApi(sqlite3_context_db_handle(),jobject,1context_1db_1handle)(
+  JniArgsEnvClass, jobject jpCx
+){
+  sqlite3_context * const pCx = PtrGet_sqlite3_context(jpCx);
+  sqlite3 * const pDb = pCx ? sqlite3_context_db_handle(pCx) : 0;
+  S3JniDb * const ps = pDb ? S3JniDb_from_c(pDb) : 0;
+  return ps ? ps->jDb : 0;
+}
+
+/*
+** State for CollationCallbacks. This used to be its own separate
+** type, but has since been consolidated with S3JniHook. It retains
+** its own typedef for code legibility and searchability reasons.
+*/
+typedef S3JniHook S3JniCollationCallback;
+
+/*
+** Proxy for Java-side CollationCallback.xCompare() callbacks.
+*/
+static int CollationCallback_xCompare(void *pArg, int nLhs, const void *lhs,
+                                      int nRhs, const void *rhs){
+  S3JniCollationCallback * const pCC = pArg;
+  S3JniDeclLocal_env;
+  jint rc = 0;
+  if( pCC->jObj ){
+    jbyteArray jbaLhs = s3jni_new_jbyteArray(lhs, (jint)nLhs);
+    jbyteArray jbaRhs = jbaLhs
+      ? s3jni_new_jbyteArray(rhs, (jint)nRhs) : 0;
+    if( !jbaRhs ){
+      S3JniUnrefLocal(jbaLhs);
+      /* We have no recovery strategy here. */
+      s3jni_oom_check( jbaRhs );
+      return 0;
+    }
+    rc = (*env)->CallIntMethod(env, pCC->jObj, pCC->midCallback,
+                               jbaLhs, jbaRhs);
+    S3JniExceptionIgnore;
+    S3JniUnrefLocal(jbaLhs);
+    S3JniUnrefLocal(jbaRhs);
+  }
+  return (int)rc;
+}
+
+/* CollationCallback finalizer for use by the sqlite3 internals. */
+static void CollationCallback_xDestroy(void *pArg){
+  S3JniCollationCallback * const pCC = pArg;
+  S3JniDeclLocal_env;
+  S3JniHook_free(pCC);
+}
+
+S3JniApi(sqlite3_create_collation() sqlite3_create_collation_v2(),
+         jint,1create_1collation
+)(JniArgsEnvClass, jobject jDb, jstring name, jint eTextRep,
+  jobject oCollation){
+  int rc;
+  S3JniDb * ps;
+
+  if( !jDb || !name || !encodingTypeIsValid(eTextRep) ){
+    return (jint)SQLITE_MISUSE;
+  }
+  S3JniDb_mutex_enter;
+  ps = S3JniDb_from_java(jDb);
+  jclass const klazz = (*env)->GetObjectClass(env, oCollation);
+  jmethodID const midCallback =
+    (*env)->GetMethodID(env, klazz, "call", "([B[B)I");
+  S3JniUnrefLocal(klazz);
+  S3JniIfThrew{
+    rc = s3jni_db_error(ps->pDb, SQLITE_ERROR,
+                        "Could not get call() method from "
+                        "CollationCallback object.");
+  }else{
+    char * const zName = s3jni_jstring_to_utf8(name, 0);
+    S3JniCollationCallback * const pCC =
+      zName ? S3JniHook_alloc() : 0;
+    if( pCC ){
+      rc = sqlite3_create_collation_v2(ps->pDb, zName, (int)eTextRep,
+                                       pCC, CollationCallback_xCompare,
+                                       CollationCallback_xDestroy);
+      if( 0==rc ){
+        pCC->midCallback = midCallback;
+        pCC->jObj = S3JniRefGlobal(oCollation);
+        pCC->doXDestroy = 1;
+      }else{
+        CollationCallback_xDestroy(pCC);
+      }
+    }else{
+      rc = SQLITE_NOMEM;
+    }
+    sqlite3_free(zName);
+  }
+  S3JniDb_mutex_leave;
+  return (jint)rc;
+}
+
+S3JniApi(sqlite3_create_function() sqlite3_create_function_v2()
+         sqlite3_create_window_function(),
+         jint,1create_1function
+)(JniArgsEnvClass, jobject jDb, jstring jFuncName, jint nArg,
+  jint eTextRep, jobject jFunctor){
+  S3JniUdf * s = 0;
+  int rc;
+  sqlite3 * const pDb = PtrGet_sqlite3(jDb);
+  char * zFuncName = 0;
+
+  if( !pDb || !jFuncName ){
+    return SQLITE_MISUSE;
+  }else if( !encodingTypeIsValid(eTextRep) ){
+    return s3jni_db_error(pDb, SQLITE_FORMAT,
+                          "Invalid function encoding option.");
+  }
+  s = S3JniUdf_alloc(env, jFunctor);
+  if( !s ) return SQLITE_NOMEM;
+
+  if( UDF_UNKNOWN_TYPE==s->type ){
+    rc = s3jni_db_error(pDb, SQLITE_MISUSE,
+                        "Cannot unambiguously determine function type.");
+    S3JniUdf_free(env, s, 1);
+    goto error_cleanup;
+  }
+  zFuncName = s3jni_jstring_to_utf8(jFuncName,0);
+  if( !zFuncName ){
+    rc = SQLITE_NOMEM;
+    S3JniUdf_free(env, s, 1);
+    goto error_cleanup;
+  }
+  s->zFuncName = zFuncName /* pass on ownership */;
+  if( UDF_WINDOW == s->type ){
+    rc = sqlite3_create_window_function(pDb, zFuncName, nArg, eTextRep, s,
+                                        udf_xStep, udf_xFinal, udf_xValue,
+                                        udf_xInverse, S3JniUdf_finalizer);
+  }else{
+    udf_xFunc_f xFunc = 0;
+    udf_xStep_f xStep = 0;
+    udf_xFinal_f xFinal = 0;
+    if( UDF_SCALAR == s->type ){
+      xFunc = udf_xFunc;
+    }else{
+      assert( UDF_AGGREGATE == s->type );
+      xStep = udf_xStep;
+      xFinal = udf_xFinal;
+    }
+    rc = sqlite3_create_function_v2(pDb, zFuncName, nArg, eTextRep, s,
+                                    xFunc, xStep, xFinal, S3JniUdf_finalizer);
+  }
+error_cleanup:
+  /* Reminder: on sqlite3_create_function() error, s will be
+  ** destroyed via create_function(). */
+  return (jint)rc;
+}
+
+
+S3JniApi(sqlite3_db_config() /*for MAINDBNAME*/,
+         jint,1db_1config__Lorg_sqlite_jni_capi_sqlite3_2ILjava_lang_String_2
+)(JniArgsEnvClass, jobject jDb, jint op, jstring jStr){
+  S3JniDb * const ps = S3JniDb_from_java(jDb);
+  int rc;
+  char *zStr;
+
+  switch( (ps && jStr) ? op : 0 ){
+    case SQLITE_DBCONFIG_MAINDBNAME:
+      S3JniDb_mutex_enter
+        /* Protect against a race in modifying/freeing
+           ps->zMainDbName. */;
+      zStr = s3jni_jstring_to_utf8( jStr, 0);
+      if( zStr ){
+        rc = sqlite3_db_config(ps->pDb, (int)op, zStr);
+        if( rc ){
+          sqlite3_free( zStr );
+        }else{
+          sqlite3_free( ps->zMainDbName );
+          ps->zMainDbName = zStr;
+        }
+      }else{
+        rc = SQLITE_NOMEM;
+      }
+      S3JniDb_mutex_leave;
+      break;
+    case 0:
+    default:
+      rc = SQLITE_MISUSE;
+  }
+  return rc;
+}
+
+S3JniApi(
+  sqlite3_db_config(),
+  /* WARNING: openjdk v19 creates a different mangled name for this
+  ** function than openjdk v8 does. We account for that by exporting
+  ** both versions of the name. */
+  jint,1db_1config__Lorg_sqlite_jni_capi_sqlite3_2IILorg_sqlite_jni_capi_OutputPointer_Int32_2
+)(
+  JniArgsEnvClass, jobject jDb, jint op, jint onOff, jobject jOut
+){
+  S3JniDb * const ps = S3JniDb_from_java(jDb);
+  int rc;
+  switch( ps ? op : 0 ){
+    case SQLITE_DBCONFIG_ENABLE_FKEY:
+    case SQLITE_DBCONFIG_ENABLE_TRIGGER:
+    case SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER:
+    case SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION:
+    case SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE:
+    case SQLITE_DBCONFIG_ENABLE_QPSG:
+    case SQLITE_DBCONFIG_TRIGGER_EQP:
+    case SQLITE_DBCONFIG_RESET_DATABASE:
+    case SQLITE_DBCONFIG_DEFENSIVE:
+    case SQLITE_DBCONFIG_WRITABLE_SCHEMA:
+    case SQLITE_DBCONFIG_LEGACY_ALTER_TABLE:
+    case SQLITE_DBCONFIG_DQS_DML:
+    case SQLITE_DBCONFIG_DQS_DDL:
+    case SQLITE_DBCONFIG_ENABLE_VIEW:
+    case SQLITE_DBCONFIG_LEGACY_FILE_FORMAT:
+    case SQLITE_DBCONFIG_TRUSTED_SCHEMA:
+    case SQLITE_DBCONFIG_STMT_SCANSTATUS:
+    case SQLITE_DBCONFIG_REVERSE_SCANORDER: {
+      int pOut = 0;
+      rc = sqlite3_db_config( ps->pDb, (int)op, onOff, &pOut );
+      if( 0==rc && jOut ){
+        OutputPointer_set_Int32(env, jOut, pOut);
+      }
+      break;
+    }
+    default:
+      rc = SQLITE_MISUSE;
+  }
+  return (jint)rc;
+}
+
+/*
+** This is a workaround for openjdk v19 (and possibly others) encoding
+** this function's name differently than JDK v8 does. If we do not
+** install both names for this function then Java will not be able to
+** find the function in both environments.
+*/
+JniDecl(jint,1db_1config__Lorg_sqlite_jni_capi_sqlite3_2IILorg_sqlite_jni_capi_OutputPointer_00024Int32_2)(
+  JniArgsEnvClass, jobject jDb, jint op, jint onOff, jobject jOut
+){
+  return JniFuncName(1db_1config__Lorg_sqlite_jni_capi_sqlite3_2IILorg_sqlite_jni_capi_OutputPointer_Int32_2)(
+    env, jKlazz, jDb, op, onOff, jOut
+  );
+}
+
+S3JniApi(sqlite3_db_filename(),jstring,1db_1filename)(
+  JniArgsEnvClass, jobject jDb, jstring jDbName
+){
+  S3JniDb * const ps = S3JniDb_from_java(jDb);
+  char *zDbName;
+  jstring jRv = 0;
+  int nStr = 0;
+
+  if( !ps || !jDbName ){
+    return 0;
+  }
+  zDbName = s3jni_jstring_to_utf8( jDbName, &nStr);
+  if( zDbName ){
+    char const * zRv = sqlite3_db_filename(ps->pDb, zDbName);
+    sqlite3_free(zDbName);
+    if( zRv ){
+      jRv = s3jni_utf8_to_jstring( zRv, -1);
+    }
+  }
+  return jRv;
+}
+
+S3JniApi(sqlite3_db_handle(),jobject,1db_1handle)(
+  JniArgsEnvClass, jobject jpStmt
+){
+  sqlite3_stmt * const pStmt = PtrGet_sqlite3_stmt(jpStmt);
+  sqlite3 * const pDb = pStmt ? sqlite3_db_handle(pStmt) : 0;
+  S3JniDb * const ps = pDb ? S3JniDb_from_c(pDb) : 0;
+  return ps ? ps->jDb : 0;
+}
+
+S3JniApi(sqlite3_db_readonly(),jint,1db_1readonly)(
+  JniArgsEnvClass, jobject jDb, jstring jDbName
+){
+  int rc = 0;
+  S3JniDb * const ps = S3JniDb_from_java(jDb);
+  char *zDbName = jDbName ? s3jni_jstring_to_utf8( jDbName, 0 ) : 0;
+  rc = sqlite3_db_readonly(ps ? ps->pDb : 0, zDbName);
+  sqlite3_free(zDbName);
+  return (jint)rc;
+}
+
+S3JniApi(sqlite3_db_release_memory(),jint,1db_1release_1memory)(
+  JniArgsEnvClass, jobject jDb
+){
+  sqlite3 * const pDb = PtrGet_sqlite3(jDb);
+  return pDb ? sqlite3_db_release_memory(pDb) : SQLITE_MISUSE;
+}
+
+S3JniApi(sqlite3_db_status(),jint,1db_1status)(
+  JniArgsEnvClass, jobject jDb, jint op, jobject jOutCurrent,
+                        jobject jOutHigh, jboolean reset
+){
+  int iCur = 0, iHigh = 0;
+  sqlite3 * const pDb = PtrGet_sqlite3(jDb);
+  int rc = sqlite3_db_status( pDb, op, &iCur, &iHigh, reset );
+  if( 0==rc ){
+    OutputPointer_set_Int32(env, jOutCurrent, iCur);
+    OutputPointer_set_Int32(env, jOutHigh, iHigh);
+  }
+  return (jint)rc;
+}
+
+S3JniApi(sqlite3_errcode(),jint,1errcode)(
+  JniArgsEnvClass, jobject jpDb
+){
+  sqlite3 * const pDb = PtrGet_sqlite3(jpDb);
+  return pDb ? sqlite3_errcode(pDb) : SQLITE_MISUSE;
+}
+
+S3JniApi(sqlite3_errmsg(),jstring,1errmsg)(
+  JniArgsEnvClass, jobject jpDb
+){
+  sqlite3 * const pDb = PtrGet_sqlite3(jpDb);
+  return pDb ? s3jni_utf8_to_jstring( sqlite3_errmsg(pDb), -1) : 0
+    /* We don't use errmsg16() directly only because it would cause an
+       additional level of internal encoding in sqlite3. The end
+       effect should be identical to using errmsg16(), however. */;
+}
+
+S3JniApi(sqlite3_errstr(),jstring,1errstr)(
+  JniArgsEnvClass, jint rcCode
+){
+  jstring rv;
+  const char * z = sqlite3_errstr((int)rcCode);
+  if( !z ){
+    /* This hypothetically cannot happen, but we'll behave like the
+       low-level library would in such a case... */
+    z = "unknown error";
+  }
+  rv = (*env)->NewStringUTF(env, z)
+      /* We know these values to be plain ASCII, so pose no MUTF-8
+      ** incompatibility */;
+  s3jni_oom_check( rv );
+  return rv;
+}
+
+#ifndef SQLITE_ENABLE_NORMALIZE
+/* Dummy stub for sqlite3_normalized_sql(). Never called. */
+static const char * sqlite3_normalized_sql(sqlite3_stmt *s){
+  S3JniDeclLocal_env;
+  (*env)->FatalError(env, "dummy sqlite3_normalized_sql() was "
+                     "impossibly called.") /* does not return */;
+  return 0;
+}
+#endif
+
+/*
+** Impl for sqlite3_expanded_sql() (if isExpanded is true) and
+** sqlite3_normalized_sql().
+*/
+static jstring s3jni_xn_sql(int isExpanded, JNIEnv *env, jobject jpStmt){
+  jstring rv = 0;
+  sqlite3_stmt * const pStmt = PtrGet_sqlite3_stmt(jpStmt);
+
+  if( pStmt ){
+    char * zSql = isExpanded
+      ? sqlite3_expanded_sql(pStmt)
+      : (char*)sqlite3_normalized_sql(pStmt);
+    s3jni_oom_fatal(zSql);
+    if( zSql ){
+      rv = s3jni_utf8_to_jstring(zSql, -1);
+      if( isExpanded ) sqlite3_free(zSql);
+    }
+  }
+  return rv;
+}
+
+S3JniApi(sqlite3_expanded_sql(),jstring,1expanded_1sql)(
+  JniArgsEnvClass, jobject jpStmt
+){
+  return s3jni_xn_sql(1, env, jpStmt);
+}
+
+S3JniApi(sqlite3_normalized_sql(),jstring,1normalized_1sql)(
+  JniArgsEnvClass, jobject jpStmt
+){
+#ifdef SQLITE_ENABLE_NORMALIZE
+  return s3jni_xn_sql(0, env, jpStmt);
+#else
+  return 0;
+#endif
+}
+
+S3JniApi(sqlite3_extended_result_codes(),jint,1extended_1result_1codes)(
+  JniArgsEnvClass, jobject jpDb, jboolean onoff
+){
+  sqlite3 * const pDb = PtrGet_sqlite3(jpDb);
+  int const rc = pDb
+    ? sqlite3_extended_result_codes(pDb, onoff ? 1 : 0)
+    : SQLITE_MISUSE;
+  return rc;
+}
+
+S3JniApi(sqlite3_finalize(),jint,1finalize)(
+  JniArgsEnvClass, jlong jpStmt
+){
+  return jpStmt
+    ? sqlite3_finalize(LongPtrGet_sqlite3_stmt(jpStmt))
+    : 0;
+}
+
+S3JniApi(sqlite3_get_auxdata(),jobject,1get_1auxdata)(
+  JniArgsEnvClass, jobject jCx, jint n
+){
+  return sqlite3_get_auxdata(PtrGet_sqlite3_context(jCx), (int)n);
+}
+
+S3JniApi(sqlite3_initialize(),jint,1initialize)(
+  JniArgsEnvClass
+){
+  return sqlite3_initialize();
+}
+
+S3JniApi(sqlite3_interrupt(),void,1interrupt)(
+  JniArgsEnvClass, jobject jpDb
+){
+  sqlite3 * const pDb = PtrGet_sqlite3(jpDb);
+  if( pDb ){
+    sqlite3_interrupt(pDb);
+  }
+}
+
+S3JniApi(sqlite3_is_interrupted(),jboolean,1is_1interrupted)(
+  JniArgsEnvClass, jobject jpDb
+){
+  int rc = 0;
+  sqlite3 * const pDb = PtrGet_sqlite3(jpDb);
+  if( pDb ){
+    rc = sqlite3_is_interrupted(pDb);
+  }
+  return rc ? JNI_TRUE : JNI_FALSE;
+}
+
+/*
+** Uncaches the current JNIEnv from the S3JniGlobal state, clearing
+** any resources owned by that cache entry and making that slot
+** available for re-use.
+*/
+S3JniApi(sqlite3_java_uncache_thread(), jboolean, 1java_1uncache_1thread)(
+  JniArgsEnvClass
+){
+  int rc;
+  S3JniEnv_mutex_enter;
+  rc = S3JniEnv_uncache(env);
+  S3JniEnv_mutex_leave;
+  return rc ? JNI_TRUE : JNI_FALSE;
+}
+
+S3JniApi(sqlite3_jni_db_error(), jint, 1jni_1db_1error)(
+  JniArgsEnvClass, jobject jDb, jint jRc, jstring jStr
+){
+  S3JniDb * const ps = S3JniDb_from_java(jDb);
+  int rc = SQLITE_MISUSE;
+  if( ps ){
+  char *zStr;
+    zStr = jStr
+      ? s3jni_jstring_to_utf8( jStr, 0)
+      : NULL;
+    rc = s3jni_db_error( ps->pDb, (int)jRc, zStr );
+    sqlite3_free(zStr);
+  }
+  return rc;
+}
+
+S3JniApi(sqlite3_jni_supports_nio(), jboolean,1jni_1supports_1nio)(
+  JniArgsEnvClass
+){
+  return SJG.g.byteBuffer.klazz ? JNI_TRUE : JNI_FALSE;
+}
+
+
+S3JniApi(sqlite3_keyword_check(),jboolean,1keyword_1check)(
+  JniArgsEnvClass, jstring jWord
+){
+  int nWord = 0;
+  char * zWord = s3jni_jstring_to_utf8(jWord, &nWord);
+  int rc = 0;
+
+  s3jni_oom_check(jWord ? !!zWord : 1);
+  if( zWord && nWord ){
+    rc = sqlite3_keyword_check(zWord, nWord);
+  }
+  sqlite3_free(zWord);
+  return rc ? JNI_TRUE : JNI_FALSE;
+}
+
+S3JniApi(sqlite3_keyword_name(),jstring,1keyword_1name)(
+  JniArgsEnvClass, jint ndx
+){
+  const char * zWord = 0;
+  int n = 0;
+  jstring rv = 0;
+
+  if( 0==sqlite3_keyword_name(ndx, &zWord, &n) ){
+    rv = s3jni_utf8_to_jstring(zWord, n);
+  }
+  return rv;
+}
+
+
+S3JniApi(sqlite3_last_insert_rowid(),jlong,1last_1insert_1rowid)(
+  JniArgsEnvClass, jobject jpDb
+){
+  return (jlong)sqlite3_last_insert_rowid(PtrGet_sqlite3(jpDb));
+}
+
+S3JniApi(sqlite3_limit(),jint,1limit)(
+  JniArgsEnvClass, jobject jpDb, jint id, jint newVal
+){
+  jint rc = 0;
+  sqlite3 * const pDb = PtrGet_sqlite3(jpDb);
+  if( pDb ){
+    rc = sqlite3_limit( pDb, (int)id, (int)newVal );
+  }
+  return rc;
+}
+
+/* Pre-open() code common to sqlite3_open[_v2](). */
+static int s3jni_open_pre(JNIEnv * const env, S3JniEnv **jc,
+                          jstring jDbName, char **zDbName,
+                          S3JniDb ** ps){
+  int rc = 0;
+  jobject jDb = 0;
+
+  *jc = S3JniEnv_get();
+  if( !*jc ){
+    rc = SQLITE_NOMEM;
+    goto end;
+  }
+  *zDbName = jDbName ? s3jni_jstring_to_utf8( jDbName, 0) : 0;
+  if( jDbName && !*zDbName ){
+    rc = SQLITE_NOMEM;
+    goto end;
+  }
+  jDb = new_java_sqlite3(env, 0);
+  if( !jDb ){
+    sqlite3_free(*zDbName);
+    *zDbName = 0;
+    rc = SQLITE_NOMEM;
+    goto end;
+  }
+  *ps = S3JniDb_alloc(env, jDb);
+  if( *ps ){
+    (*jc)->pdbOpening = *ps;
+  }else{
+    S3JniUnrefLocal(jDb);
+    rc = SQLITE_NOMEM;
+  }
+end:
+  return rc;
+}
+
+/*
+** Post-open() code common to both the sqlite3_open() and
+** sqlite3_open_v2() bindings. ps->jDb must be the
+** org.sqlite.jni.capi.sqlite3 object which will hold the db's native
+** pointer. theRc must be the result code of the open() op. If
+** *ppDb is NULL then ps is set aside and its state cleared,
+** else ps is associated with *ppDb. If *ppDb is not NULL then
+** ps->jDb is stored in jOut (an OutputPointer.sqlite3 instance).
+**
+** Must be called if s3jni_open_pre() succeeds and must not be called
+** if it doesn't.
+**
+** Returns theRc.
+*/
+static int s3jni_open_post(JNIEnv * const env, S3JniEnv * const jc,
+                           S3JniDb * ps, sqlite3 **ppDb,
+                           jobject jOut, int theRc){
+  int rc = 0;
+  jc->pdbOpening = 0;
+  if( *ppDb ){
+    assert(ps->jDb);
+    if( 0==ps->pDb ){
+      ps->pDb = *ppDb;
+      NativePointerHolder_set(S3JniNph(sqlite3), ps->jDb, *ppDb);
+    }else{
+      assert( ps->pDb==*ppDb
+              && "Set up via s3jni_run_java_auto_extensions()" );
+    }
+    rc = sqlite3_set_clientdata(ps->pDb, S3JniDb_clientdata_key,
+                                ps, S3JniDb_xDestroy)
+      /* As of here, the Java/C connection is complete */;
+  }else{
+    S3JniDb_set_aside(ps);
+    ps = 0;
+  }
+  OutputPointer_set_obj(env, S3JniNph(OutputPointer_sqlite3),
+                        jOut, ps ? ps->jDb : 0);
+  return theRc ? theRc : rc;
+}
+
+S3JniApi(sqlite3_open(),jint,1open)(
+  JniArgsEnvClass, jstring strName, jobject jOut
+){
+  sqlite3 * pOut = 0;
+  char *zName = 0;
+  S3JniDb * ps = 0;
+  S3JniEnv * jc = 0;
+  int rc;
+
+  if( 0==jOut ) return SQLITE_MISUSE;
+  rc = s3jni_open_pre(env, &jc, strName, &zName, &ps);
+  if( 0==rc ){
+    rc = s3jni_open_post(env, jc, ps, &pOut, jOut,
+                         sqlite3_open(zName, &pOut));
+    assert(rc==0 ? pOut!=0 : 1);
+    sqlite3_free(zName);
+  }
+  return (jint)rc;
+}
+
+S3JniApi(sqlite3_open_v2(),jint,1open_1v2)(
+  JniArgsEnvClass, jstring strName,
+  jobject jOut, jint flags, jstring strVfs
+){
+  sqlite3 * pOut = 0;
+  char *zName = 0;
+  S3JniDb * ps = 0;
+  S3JniEnv * jc = 0;
+  char *zVfs = 0;
+  int rc;
+
+  if( 0==jOut ) return SQLITE_MISUSE;
+  rc = s3jni_open_pre(env, &jc, strName, &zName, &ps);
+  if( 0==rc ){
+    if( strVfs ){
+      zVfs = s3jni_jstring_to_utf8( strVfs, 0);
+      if( !zVfs ){
+        rc = SQLITE_NOMEM;
+      }
+    }
+    if( 0==rc ){
+      rc = sqlite3_open_v2(zName, &pOut, (int)flags, zVfs);
+    }
+    rc = s3jni_open_post(env, jc, ps, &pOut, jOut, rc);
+  }
+  assert(rc==0 ? pOut!=0 : 1);
+  sqlite3_free(zName);
+  sqlite3_free(zVfs);
+  return (jint)rc;
+}
+
+/* Proxy for the sqlite3_prepare[_v2/3]() family. */
+static jint sqlite3_jni_prepare_v123( int prepVersion, JNIEnv * const env,
+                                      jclass self,
+                                      jlong jpDb, jbyteArray baSql,
+                                      jint nMax, jint prepFlags,
+                                      jobject jOutStmt, jobject outTail){
+  sqlite3_stmt * pStmt = 0;
+  jobject jStmt = 0;
+  const char * zTail = 0;
+  sqlite3 * const pDb = LongPtrGet_sqlite3(jpDb);
+  jbyte * const pBuf = pDb ? s3jni_jbyteArray_bytes(baSql)  : 0;
+  int rc = SQLITE_ERROR;
+
+  assert(prepVersion==1 || prepVersion==2 || prepVersion==3);
+  if( !pDb || !jOutStmt ){
+    rc = SQLITE_MISUSE;
+    goto end;
+  }else if( !pBuf ){
+    rc = baSql ? SQLITE_NOMEM : SQLITE_MISUSE;
+    goto end;
+  }
+  jStmt = new_java_sqlite3_stmt(env, 0);
+  if( !jStmt ){
+    rc = SQLITE_NOMEM;
+    goto end;
+  }
+  switch( prepVersion ){
+    case 1: rc = sqlite3_prepare(pDb, (const char *)pBuf,
+                                 (int)nMax, &pStmt, &zTail);
+      break;
+    case 2: rc = sqlite3_prepare_v2(pDb, (const char *)pBuf,
+                                    (int)nMax, &pStmt, &zTail);
+      break;
+    case 3: rc = sqlite3_prepare_v3(pDb, (const char *)pBuf,
+                                    (int)nMax, (unsigned int)prepFlags,
+                                    &pStmt, &zTail);
+      break;
+    default:
+      assert(!"Invalid prepare() version");
+  }
+end:
+  s3jni_jbyteArray_release(baSql,pBuf);
+  if( 0==rc ){
+    if( 0!=outTail ){
+      /* Noting that pBuf is deallocated now but its address is all we need for
+      ** what follows... */
+      assert(zTail ? ((void*)zTail>=(void*)pBuf) : 1);
+      assert(zTail ? (((int)((void*)zTail - (void*)pBuf)) >= 0) : 1);
+      OutputPointer_set_Int32(
+        env, outTail, (int)(zTail ? (zTail - (const char *)pBuf) : 0)
+      );
+    }
+    if( pStmt ){
+      NativePointerHolder_set(S3JniNph(sqlite3_stmt), jStmt, pStmt);
+    }else{
+      /* Happens for comments and whitespace. */
+      S3JniUnrefLocal(jStmt);
+      jStmt = 0;
+    }
+  }else{
+    S3JniUnrefLocal(jStmt);
+    jStmt = 0;
+  }
+  if( jOutStmt ){
+    OutputPointer_set_obj(env, S3JniNph(OutputPointer_sqlite3_stmt),
+                          jOutStmt, jStmt);
+  }
+  return (jint)rc;
+}
+S3JniApi(sqlite3_prepare(),jint,1prepare)(
+  JNIEnv * const env, jclass self, jlong jpDb, jbyteArray baSql,
+                     jint nMax, jobject jOutStmt, jobject outTail
+){
+  return sqlite3_jni_prepare_v123(1, env, self, jpDb, baSql, nMax, 0,
+                                  jOutStmt, outTail);
+}
+S3JniApi(sqlite3_prepare_v2(),jint,1prepare_1v2)(
+  JNIEnv * const env, jclass self, jlong jpDb, jbyteArray baSql,
+                         jint nMax, jobject jOutStmt, jobject outTail
+){
+  return sqlite3_jni_prepare_v123(2, env, self, jpDb, baSql, nMax, 0,
+                                  jOutStmt, outTail);
+}
+S3JniApi(sqlite3_prepare_v3(),jint,1prepare_1v3)(
+  JNIEnv * const env, jclass self, jlong jpDb, jbyteArray baSql,
+                         jint nMax, jint prepFlags, jobject jOutStmt, jobject outTail
+){
+  return sqlite3_jni_prepare_v123(3, env, self, jpDb, baSql, nMax,
+                                  prepFlags, jOutStmt, outTail);
+}
+
+/*
+** Impl for C-to-Java of the callbacks for both sqlite3_update_hook()
+** and sqlite3_preupdate_hook().  The differences are that for
+** update_hook():
+**
+** - pDb is NULL
+** - iKey1 is the row ID
+** - iKey2 is unused
+*/
+static void s3jni_updatepre_hook_impl(void * pState, sqlite3 *pDb, int opId,
+                                      const char *zDb, const char *zTable,
+                                      sqlite3_int64 iKey1, sqlite3_int64 iKey2){
+  S3JniDb * const ps = pState;
+  S3JniDeclLocal_env;
+  jstring jDbName;
+  jstring jTable;
+  const int isPre = 0!=pDb;
+  S3JniHook hook;
+
+  S3JniHook_localdup(isPre ?
+#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
+                 &ps->hooks.preUpdate
+#else
+                 &S3JniHook_empty
+#endif
+                 : &ps->hooks.update, &hook);
+  if( !hook.jObj ){
+    return;
+  }
+  jDbName  = s3jni_utf8_to_jstring( zDb, -1);
+  jTable = jDbName ? s3jni_utf8_to_jstring( zTable, -1) : 0;
+  S3JniIfThrew {
+    S3JniExceptionClear;
+    s3jni_db_error(ps->pDb, SQLITE_NOMEM, 0);
+  }else{
+    assert( hook.jObj );
+    assert( hook.midCallback );
+    assert( ps->jDb );
+#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
+    if( isPre ) (*env)->CallVoidMethod(env, hook.jObj, hook.midCallback,
+                                       ps->jDb, (jint)opId, jDbName, jTable,
+                                       (jlong)iKey1, (jlong)iKey2);
+    else
+#endif
+    (*env)->CallVoidMethod(env, hook.jObj, hook.midCallback,
+                           (jint)opId, jDbName, jTable, (jlong)iKey1);
+    S3JniIfThrew{
+      S3JniExceptionWarnCallbackThrew("sqlite3_(pre)update_hook() callback");
+      s3jni_db_exception(ps->pDb, 0,
+                         "sqlite3_(pre)update_hook() callback threw");
+    }
+  }
+  S3JniUnrefLocal(jDbName);
+  S3JniUnrefLocal(jTable);
+  S3JniHook_localundup(hook);
+}
+
+#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
+static void s3jni_preupdate_hook_impl(void * pState, sqlite3 *pDb, int opId,
+                                      const char *zDb, const char *zTable,
+                                      sqlite3_int64 iKey1, sqlite3_int64 iKey2){
+  return s3jni_updatepre_hook_impl(pState, pDb, opId, zDb, zTable,
+                                   iKey1, iKey2);
+}
+#endif /* SQLITE_ENABLE_PREUPDATE_HOOK */
+
+static void s3jni_update_hook_impl(void * pState, int opId, const char *zDb,
+                                   const char *zTable, sqlite3_int64 nRowid){
+  return s3jni_updatepre_hook_impl(pState, NULL, opId, zDb, zTable, nRowid, 0);
+}
+
+#if !defined(SQLITE_ENABLE_PREUPDATE_HOOK)
+/* We need no-op impls for preupdate_{count,depth,blobwrite}() */
+S3JniApi(sqlite3_preupdate_blobwrite(),jint,1preupdate_1blobwrite)(
+  JniArgsEnvClass, jlong jDb){ return SQLITE_MISUSE; }
+S3JniApi(sqlite3_preupdate_count(),jint,1preupdate_1count)(
+  JniArgsEnvClass, jlong jDb){ return SQLITE_MISUSE; }
+S3JniApi(sqlite3_preupdate_depth(),jint,1preupdate_1depth)(
+  JniArgsEnvClass, jlong jDb){ return SQLITE_MISUSE; }
+#endif /* !SQLITE_ENABLE_PREUPDATE_HOOK */
+
+/*
+** JNI wrapper for both sqlite3_update_hook() and
+** sqlite3_preupdate_hook() (if isPre is true).
+*/
+static jobject s3jni_updatepre_hook(JNIEnv * env, int isPre, jlong jpDb, jobject jHook){
+  S3JniDb * const ps = S3JniDb_from_jlong(jpDb);
+  jclass klazz;
+  jobject pOld = 0;
+  jmethodID xCallback;
+  S3JniHook * pHook;
+
+  if( !ps ) return 0;
+  S3JniDb_mutex_enter;
+  pHook = isPre ?
+#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
+    &ps->hooks.preUpdate
+#else
+    0
+#endif
+    : &ps->hooks.update;
+  if( !pHook ){
+    goto end;
+  }
+  pOld = pHook->jObj;
+  if( pOld && jHook && (*env)->IsSameObject(env, pOld, jHook) ){
+    goto end;
+  }
+  if( !jHook ){
+    if( pOld ){
+      jobject tmp = S3JniRefLocal(pOld);
+      S3JniUnrefGlobal(pOld);
+      pOld = tmp;
+    }
+    *pHook = S3JniHook_empty;
+#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
+    if( isPre ) sqlite3_preupdate_hook(ps->pDb, 0, 0);
+    else
+#endif
+    sqlite3_update_hook(ps->pDb, 0, 0);
+    goto end;
+  }
+  klazz = (*env)->GetObjectClass(env, jHook);
+  xCallback = isPre
+    ? (*env)->GetMethodID(env, klazz, "call",
+                          "(Lorg/sqlite/jni/capi/sqlite3;"
+                          "I"
+                          "Ljava/lang/String;"
+                          "Ljava/lang/String;"
+                          "JJ)V")
+    : (*env)->GetMethodID(env, klazz, "call",
+                          "(ILjava/lang/String;Ljava/lang/String;J)V");
+  S3JniUnrefLocal(klazz);
+  S3JniIfThrew {
+    S3JniExceptionClear;
+    s3jni_db_error(ps->pDb, SQLITE_ERROR,
+                   "Cannot not find matching callback on "
+                   "(pre)update hook object.");
+  }else{
+    pHook->midCallback = xCallback;
+    pHook->jObj = S3JniRefGlobal(jHook);
+#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
+    if( isPre ) sqlite3_preupdate_hook(ps->pDb, s3jni_preupdate_hook_impl, ps);
+    else
+#endif
+    sqlite3_update_hook(ps->pDb, s3jni_update_hook_impl, ps);
+    if( pOld ){
+      jobject tmp = S3JniRefLocal(pOld);
+      S3JniUnrefGlobal(pOld);
+      pOld = tmp;
+    }
+  }
+end:
+  S3JniDb_mutex_leave;
+  return pOld;
+}
+
+
+S3JniApi(sqlite3_preupdate_hook(),jobject,1preupdate_1hook)(
+  JniArgsEnvClass, jlong jpDb, jobject jHook
+){
+#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
+  return s3jni_updatepre_hook(env, 1, jpDb, jHook);
+#else
+  return NULL;
+#endif /* SQLITE_ENABLE_PREUPDATE_HOOK */
+}
+
+/* Impl for sqlite3_preupdate_{new,old}(). */
+static int s3jni_preupdate_newold(JNIEnv * const env, int isNew, jlong jpDb,
+                                  jint iCol, jobject jOut){
+#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
+  sqlite3 * const pDb = LongPtrGet_sqlite3(jpDb);
+  int rc = SQLITE_MISUSE;
+  if( pDb ){
+    sqlite3_value * pOut = 0;
+    int (*fOrig)(sqlite3*,int,sqlite3_value**) =
+      isNew ? sqlite3_preupdate_new : sqlite3_preupdate_old;
+    rc = fOrig(pDb, (int)iCol, &pOut);
+    if( 0==rc ){
+      jobject pWrap = new_java_sqlite3_value(env, pOut);
+      if( !pWrap ){
+        rc = SQLITE_NOMEM;
+      }
+      OutputPointer_set_obj(env, S3JniNph(OutputPointer_sqlite3_value),
+                            jOut, pWrap);
+      S3JniUnrefLocal(pWrap);
+    }
+  }
+  return rc;
+#else
+  return SQLITE_MISUSE;
+#endif
+}
+
+S3JniApi(sqlite3_preupdate_new(),jint,1preupdate_1new)(
+  JniArgsEnvClass, jlong jpDb, jint iCol, jobject jOut
+){
+  return s3jni_preupdate_newold(env, 1, jpDb, iCol, jOut);
+}
+
+S3JniApi(sqlite3_preupdate_old(),jint,1preupdate_1old)(
+  JniArgsEnvClass, jlong jpDb, jint iCol, jobject jOut
+){
+  return s3jni_preupdate_newold(env, 0, jpDb, iCol, jOut);
+}
+
+
+/* Central C-to-Java sqlite3_progress_handler() proxy. */
+static int s3jni_progress_handler_impl(void *pP){
+  S3JniDb * const ps = (S3JniDb *)pP;
+  int rc = 0;
+  S3JniDeclLocal_env;
+  S3JniHook hook;
+
+  S3JniHook_localdup(&ps->hooks.progress, &hook);
+  if( hook.jObj ){
+    rc = (int)(*env)->CallIntMethod(env, hook.jObj, hook.midCallback);
+    S3JniIfThrew{
+      rc = s3jni_db_exception(ps->pDb, rc,
+                              "sqlite3_progress_handler() callback threw");
+    }
+    S3JniHook_localundup(hook);
+  }
+  return rc;
+}
+
+S3JniApi(sqlite3_progress_handler(),void,1progress_1handler)(
+  JniArgsEnvClass,jobject jDb, jint n, jobject jProgress
+){
+  S3JniDb * const ps = S3JniDb_from_java(jDb);
+  S3JniHook * const pHook = ps ? &ps->hooks.progress : 0;
+
+  if( !ps ) return;
+  S3JniDb_mutex_enter;
+  if( n<1 || !jProgress ){
+    S3JniHook_unref(pHook);
+    sqlite3_progress_handler(ps->pDb, 0, 0, 0);
+  }else{
+    jclass const klazz = (*env)->GetObjectClass(env, jProgress);
+    jmethodID const xCallback = (*env)->GetMethodID(env, klazz, "call", "()I");
+    S3JniUnrefLocal(klazz);
+    S3JniIfThrew {
+      S3JniExceptionClear;
+      s3jni_db_error(ps->pDb, SQLITE_ERROR,
+                     "Cannot not find matching xCallback() on "
+                     "ProgressHandler object.");
+    }else{
+      S3JniUnrefGlobal(pHook->jObj);
+      pHook->midCallback = xCallback;
+      pHook->jObj = S3JniRefGlobal(jProgress);
+      sqlite3_progress_handler(ps->pDb, (int)n, s3jni_progress_handler_impl, ps);
+    }
+  }
+  S3JniDb_mutex_leave;
+}
+
+S3JniApi(sqlite3_randomness(),void,1randomness)(
+  JniArgsEnvClass, jbyteArray jTgt
+){
+  jbyte * const jba = s3jni_jbyteArray_bytes(jTgt);
+  if( jba ){
+    jsize const nTgt = (*env)->GetArrayLength(env, jTgt);
+    sqlite3_randomness( (int)nTgt, jba );
+    s3jni_jbyteArray_commit(jTgt, jba);
+  }
+}
+
+
+S3JniApi(sqlite3_reset(),jint,1reset)(
+  JniArgsEnvClass, jobject jpStmt
+){
+  sqlite3_stmt * const pStmt = PtrGet_sqlite3_stmt(jpStmt);
+  return pStmt ? sqlite3_reset(pStmt) : SQLITE_MISUSE;
+}
+
+/* Clears all entries from S3JniGlobal.autoExt. */
+static void s3jni_reset_auto_extension(JNIEnv *env){
+  int i;
+  S3JniAutoExt_mutex_enter;
+  for( i = 0; i < SJG.autoExt.nExt; ++i ){
+    S3JniAutoExtension_clear( &SJG.autoExt.aExt[i] );
+  }
+  SJG.autoExt.nExt = 0;
+  S3JniAutoExt_mutex_leave;
+}
+
+S3JniApi(sqlite3_reset_auto_extension(),void,1reset_1auto_1extension)(
+  JniArgsEnvClass
+){
+  s3jni_reset_auto_extension(env);
+}
+
+/* Impl for sqlite3_result_text/blob() and friends. */
+static void result_blob_text(int as64     /* true for text64/blob64() mode */,
+                             int eTextRep /* 0 for blobs, else SQLITE_UTF... */,
+                             JNIEnv * const env, sqlite3_context *pCx,
+                             jbyteArray jBa, jlong nMax){
+  int const asBlob = 0==eTextRep;
+  if( !pCx ){
+    /* We should arguably emit a warning here. But where to log it? */
+    return;
+  }else if( jBa ){
+    jbyte * const pBuf = s3jni_jbyteArray_bytes(jBa);
+    jsize nBA = (*env)->GetArrayLength(env, jBa);
+    if( nMax>=0 && nBA>(jsize)nMax ){
+      nBA = (jsize)nMax;
+      /**
+         From the sqlite docs:
+
+         > If the 3rd parameter to any of the sqlite3_result_text*
+           interfaces other than sqlite3_result_text64() is negative,
+           then SQLite computes the string length itself by searching
+           the 2nd parameter for the first zero character.
+
+         Note that the text64() interfaces take an unsigned value for
+         the length, which Java does not support. This binding takes
+         the approach of passing on negative values to the C API,
+         which will in turn fail with SQLITE_TOOBIG at some later
+         point (recall that the sqlite3_result_xyz() family do not
+         have result values).
+      */
+    }
+    if( as64 ){ /* 64-bit... */
+      static const jsize nLimit64 =
+        SQLITE_MAX_ALLOCATION_SIZE/*only _kinda_ arbitrary*/;
+      if( nBA > nLimit64 ){
+        sqlite3_result_error_toobig(pCx);
+      }else if( asBlob ){
+        sqlite3_result_blob64(pCx, pBuf, (sqlite3_uint64)nBA,
+                              SQLITE_TRANSIENT);
+      }else{ /* text64... */
+        if( encodingTypeIsValid(eTextRep) ){
+          sqlite3_result_text64(pCx, (const char *)pBuf,
+                                (sqlite3_uint64)nBA,
+                                SQLITE_TRANSIENT, eTextRep);
+        }else{
+          sqlite3_result_error_code(pCx, SQLITE_FORMAT);
+        }
+      }
+    }else{ /* 32-bit... */
+      static const jsize nLimit = SQLITE_MAX_ALLOCATION_SIZE;
+      if( nBA > nLimit ){
+        sqlite3_result_error_toobig(pCx);
+      }else if( asBlob ){
+        sqlite3_result_blob(pCx, pBuf, (int)nBA,
+                            SQLITE_TRANSIENT);
+      }else{
+        switch( eTextRep ){
+          case SQLITE_UTF8:
+            sqlite3_result_text(pCx, (const char *)pBuf, (int)nBA,
+                                SQLITE_TRANSIENT);
+            break;
+          case SQLITE_UTF16:
+            sqlite3_result_text16(pCx, (const char *)pBuf, (int)nBA,
+                                  SQLITE_TRANSIENT);
+            break;
+          case SQLITE_UTF16LE:
+            sqlite3_result_text16le(pCx, (const char *)pBuf, (int)nBA,
+                                    SQLITE_TRANSIENT);
+            break;
+          case SQLITE_UTF16BE:
+            sqlite3_result_text16be(pCx, (const char *)pBuf, (int)nBA,
+                                    SQLITE_TRANSIENT);
+            break;
+        }
+      }
+      s3jni_jbyteArray_release(jBa, pBuf);
+    }
+  }else{
+    sqlite3_result_null(pCx);
+  }
+}
+
+S3JniApi(sqlite3_result_blob(),void,1result_1blob)(
+  JniArgsEnvClass, jobject jpCx, jbyteArray jBa, jint nMax
+){
+  return result_blob_text(0, 0, env, PtrGet_sqlite3_context(jpCx), jBa, nMax);
+}
+
+S3JniApi(sqlite3_result_blob64(),void,1result_1blob64)(
+  JniArgsEnvClass, jobject jpCx, jbyteArray jBa, jlong nMax
+){
+  return result_blob_text(1, 0, env, PtrGet_sqlite3_context(jpCx), jBa, nMax);
+}
+
+S3JniApi(sqlite3_result_double(),void,1result_1double)(
+  JniArgsEnvClass, jobject jpCx, jdouble v
+){
+  sqlite3_result_double(PtrGet_sqlite3_context(jpCx), v);
+}
+
+S3JniApi(sqlite3_result_error(),void,1result_1error)(
+  JniArgsEnvClass, jobject jpCx, jbyteArray baMsg, jint eTextRep
+){
+  const char * zUnspecified = "Unspecified error.";
+  jsize const baLen = (*env)->GetArrayLength(env, baMsg);
+  jbyte * const pjBuf = baMsg ? s3jni_jbyteArray_bytes(baMsg) : NULL;
+  switch( pjBuf ? eTextRep : SQLITE_UTF8 ){
+    case SQLITE_UTF8: {
+      const char *zMsg = pjBuf ? (const char *)pjBuf : zUnspecified;
+      int const n = pjBuf ? (int)baLen : (int)sqlite3Strlen30(zMsg);
+      sqlite3_result_error(PtrGet_sqlite3_context(jpCx), zMsg, n);
+      break;
+    }
+    case SQLITE_UTF16: {
+      const void *zMsg = pjBuf;
+      sqlite3_result_error16(PtrGet_sqlite3_context(jpCx), zMsg, (int)baLen);
+      break;
+    }
+    default:
+      sqlite3_result_error(PtrGet_sqlite3_context(jpCx),
+                           "Invalid encoding argument passed "
+                           "to sqlite3_result_error().", -1);
+      break;
+  }
+  s3jni_jbyteArray_release(baMsg,pjBuf);
+}
+
+S3JniApi(sqlite3_result_error_code(),void,1result_1error_1code)(
+  JniArgsEnvClass, jobject jpCx, jint v
+){
+  sqlite3_result_error_code(PtrGet_sqlite3_context(jpCx), (int)v);
+}
+
+S3JniApi(sqlite3_result_error_nomem(),void,1result_1error_1nomem)(
+  JniArgsEnvClass, jobject jpCx
+){
+  sqlite3_result_error_nomem(PtrGet_sqlite3_context(jpCx));
+}
+
+S3JniApi(sqlite3_result_error_toobig(),void,1result_1error_1toobig)(
+  JniArgsEnvClass, jobject jpCx
+){
+  sqlite3_result_error_toobig(PtrGet_sqlite3_context(jpCx));
+}
+
+S3JniApi(sqlite3_result_int(),void,1result_1int)(
+  JniArgsEnvClass, jobject jpCx, jint v
+){
+  sqlite3_result_int(PtrGet_sqlite3_context(jpCx), (int)v);
+}
+
+S3JniApi(sqlite3_result_int64(),void,1result_1int64)(
+  JniArgsEnvClass, jobject jpCx, jlong v
+){
+  sqlite3_result_int64(PtrGet_sqlite3_context(jpCx), (sqlite3_int64)v);
+}
+
+S3JniApi(sqlite3_result_java_object(),void,1result_1java_1object)(
+  JniArgsEnvClass, jobject jpCx, jobject v
+){
+  sqlite3_context * pCx = PtrGet_sqlite3_context(jpCx);
+  if( !pCx ) return;
+  else if( v ){
+    jobject const rjv = S3JniRefGlobal(v);
+    if( rjv ){
+      sqlite3_result_pointer(pCx, rjv,
+                             s3jni__value_jref_key, S3Jni_jobject_finalizer);
+    }else{
+      sqlite3_result_error_nomem(PtrGet_sqlite3_context(jpCx));
+    }
+  }else{
+    sqlite3_result_null(PtrGet_sqlite3_context(jpCx));
+  }
+}
+
+S3JniApi(sqlite3_result_nio_buffer(),void,1result_1nio_1buffer)(
+  JniArgsEnvClass, jobject jpCtx, jobject jBuffer,
+  jint iOffset, jint iN
+){
+  sqlite3_context * pCx = PtrGet_sqlite3_context(jpCtx);
+  int rc;
+  S3JniNioArgs args;
+  if( !pCx ){
+    return;
+  }else if( !SJG.g.byteBuffer.klazz ){
+    sqlite3_result_error(
+      pCx, "This JVM does not support JNI access to ByteBuffers.", -1
+    );
+    return;
+  }
+  rc = s3jni_setup_nio_args(env, &args, jBuffer, iOffset, iN);
+  if(rc){
+    if( iOffset<0 ){
+      sqlite3_result_error(pCx, "Start index may not be negative.", -1);
+    }else if( SQLITE_TOOBIG==rc ){
+      sqlite3_result_error_toobig(pCx);
+    }else{
+      sqlite3_result_error(
+        pCx, "Invalid arguments to sqlite3_result_nio_buffer().", -1
+      );
+    }
+  }else if( !args.pStart || !args.nOut ){
+    sqlite3_result_null(pCx);
+  }else{
+    sqlite3_result_blob(pCx, args.pStart, args.nOut, SQLITE_TRANSIENT);
+  }
+}
+
+
+S3JniApi(sqlite3_result_null(),void,1result_1null)(
+  JniArgsEnvClass, jobject jpCx
+){
+  sqlite3_result_null(PtrGet_sqlite3_context(jpCx));
+}
+
+S3JniApi(sqlite3_result_subtype(),void,1result_1subtype)(
+  JniArgsEnvClass, jobject jpCx, jint v
+){
+  sqlite3_result_subtype(PtrGet_sqlite3_context(jpCx), (unsigned int)v);
+}
+
+
+S3JniApi(sqlite3_result_text(),void,1result_1text)(
+  JniArgsEnvClass, jobject jpCx, jbyteArray jBa, jint nMax
+){
+  return result_blob_text(0, SQLITE_UTF8, env,
+                          PtrGet_sqlite3_context(jpCx), jBa, nMax);
+}
+
+S3JniApi(sqlite3_result_text64(),void,1result_1text64)(
+  JniArgsEnvClass, jobject jpCx, jbyteArray jBa, jlong nMax,
+                            jint eTextRep
+){
+  return result_blob_text(1, eTextRep, env,
+                          PtrGet_sqlite3_context(jpCx), jBa, nMax);
+}
+
+S3JniApi(sqlite3_result_value(),void,1result_1value)(
+  JniArgsEnvClass, jobject jpCx, jobject jpSVal
+){
+  sqlite3_result_value(PtrGet_sqlite3_context(jpCx),
+                       PtrGet_sqlite3_value(jpSVal));
+}
+
+S3JniApi(sqlite3_result_zeroblob(),void,1result_1zeroblob)(
+  JniArgsEnvClass, jobject jpCx, jint v
+){
+  sqlite3_result_zeroblob(PtrGet_sqlite3_context(jpCx), (int)v);
+}
+
+S3JniApi(sqlite3_result_zeroblob64(),jint,1result_1zeroblob64)(
+  JniArgsEnvClass, jobject jpCx, jlong v
+){
+  return (jint)sqlite3_result_zeroblob64(PtrGet_sqlite3_context(jpCx),
+                                         (sqlite3_int64)v);
+}
+
+S3JniApi(sqlite3_rollback_hook(),jobject,1rollback_1hook)(
+  JniArgsEnvClass, jlong jpDb, jobject jHook
+){
+  return s3jni_commit_rollback_hook(0, env, jpDb, jHook);
+}
+
+/* Callback for sqlite3_set_authorizer(). */
+int s3jni_xAuth(void* pState, int op,const char*z0, const char*z1,
+                const char*z2,const char*z3){
+  S3JniDb * const ps = pState;
+  S3JniDeclLocal_env;
+  S3JniHook hook;
+  int rc = 0;
+
+  S3JniHook_localdup(&ps->hooks.auth, &hook );
+  if( hook.jObj ){
+    jstring const s0 = z0 ? s3jni_utf8_to_jstring( z0, -1) : 0;
+    jstring const s1 = z1 ? s3jni_utf8_to_jstring( z1, -1) : 0;
+    jstring const s2 = z2 ? s3jni_utf8_to_jstring( z2, -1) : 0;
+    jstring const s3 = z3 ? s3jni_utf8_to_jstring( z3, -1) : 0;
+
+    rc = (*env)->CallIntMethod(env, hook.jObj, hook.midCallback, (jint)op,
+                               s0, s1, s3, s3);
+    S3JniIfThrew{
+      rc = s3jni_db_exception(ps->pDb, rc, "sqlite3_set_authorizer() callback");
+    }
+    S3JniUnrefLocal(s0);
+    S3JniUnrefLocal(s1);
+    S3JniUnrefLocal(s2);
+    S3JniUnrefLocal(s3);
+    S3JniHook_localundup(hook);
+  }
+  return rc;
+}
+
+S3JniApi(sqlite3_set_authorizer(),jint,1set_1authorizer)(
+  JniArgsEnvClass,jobject jDb, jobject jHook
+){
+  S3JniDb * const ps = S3JniDb_from_java(jDb);
+  S3JniHook * const pHook = ps ? &ps->hooks.auth : 0;
+  int rc = 0;
+
+  if( !ps ) return SQLITE_MISUSE;
+  S3JniDb_mutex_enter;
+  if( !jHook ){
+    S3JniHook_unref(pHook);
+    rc = sqlite3_set_authorizer( ps->pDb, 0, 0 );
+  }else{
+    jclass klazz;
+    if( pHook->jObj ){
+      if( (*env)->IsSameObject(env, pHook->jObj, jHook) ){
+      /* Same object - this is a no-op. */
+        S3JniDb_mutex_leave;
+        return 0;
+      }
+      S3JniHook_unref(pHook);
+    }
+    pHook->jObj = S3JniRefGlobal(jHook);
+    klazz = (*env)->GetObjectClass(env, jHook);
+    pHook->midCallback = (*env)->GetMethodID(env, klazz,
+                                             "call",
+                                             "(I"
+                                             "Ljava/lang/String;"
+                                             "Ljava/lang/String;"
+                                             "Ljava/lang/String;"
+                                             "Ljava/lang/String;"
+                                             ")I");
+    S3JniUnrefLocal(klazz);
+    S3JniIfThrew {
+      rc = s3jni_db_error(ps->pDb, SQLITE_ERROR,
+                          "Error setting up Java parts of authorizer hook.");
+    }else{
+      rc = sqlite3_set_authorizer(ps->pDb, s3jni_xAuth, ps);
+    }
+    if( rc ) S3JniHook_unref(pHook);
+  }
+  S3JniDb_mutex_leave;
+  return rc;
+}
+
+S3JniApi(sqlite3_set_auxdata(),void,1set_1auxdata)(
+  JniArgsEnvClass, jobject jCx, jint n, jobject jAux
+){
+  sqlite3_set_auxdata(PtrGet_sqlite3_context(jCx), (int)n,
+                      S3JniRefGlobal(jAux), S3Jni_jobject_finalizer);
+}
+
+S3JniApi(sqlite3_set_last_insert_rowid(),void,1set_1last_1insert_1rowid)(
+  JniArgsEnvClass, jobject jpDb, jlong rowId
+){
+  sqlite3_set_last_insert_rowid(PtrGet_sqlite3(jpDb),
+                                (sqlite3_int64)rowId);
+}
+
+S3JniApi(sqlite3_shutdown(),jint,1shutdown)(
+  JniArgsEnvClass
+){
+  s3jni_reset_auto_extension(env);
+#ifdef SQLITE_ENABLE_SQLLOG
+  S3JniHook_unref(&SJG.hook.sqllog);
+#endif
+  S3JniHook_unref(&SJG.hook.configlog);
+  /* Free up S3JniDb recycling bin. */
+  S3JniDb_mutex_enter; {
+    while( S3JniGlobal.perDb.aFree ){
+      S3JniDb * const d = S3JniGlobal.perDb.aFree;
+      S3JniGlobal.perDb.aFree = d->pNext;
+      S3JniDb_clear(env, d);
+      sqlite3_free(d);
+    }
+  } S3JniDb_mutex_leave;
+  S3JniGlobal_mutex_enter; {
+    /* Free up S3JniUdf recycling bin. */
+    while( S3JniGlobal.udf.aFree ){
+      S3JniUdf * const u = S3JniGlobal.udf.aFree;
+      S3JniGlobal.udf.aFree = u->pNext;
+      u->pNext = 0;
+      S3JniUdf_free(env, u, 0);
+    }
+  } S3JniGlobal_mutex_leave;
+  S3JniHook_mutex_enter; {
+    /* Free up S3JniHook recycling bin. */
+    while( S3JniGlobal.hook.aFree ){
+      S3JniHook * const u = S3JniGlobal.hook.aFree;
+      S3JniGlobal.hook.aFree = u->pNext;
+      u->pNext = 0;
+      assert( !u->doXDestroy );
+      assert( !u->jObj );
+      assert( !u->jExtra );
+      sqlite3_free( u );
+    }
+  } S3JniHook_mutex_leave;
+  /* Free up env cache. */
+  S3JniEnv_mutex_enter; {
+    while( SJG.envCache.aHead ){
+      S3JniEnv_uncache( SJG.envCache.aHead->env );
+    }
+  } S3JniEnv_mutex_leave;
+  /* Do not clear S3JniGlobal.jvm or S3JniGlobal.g: it's legal to
+  ** restart the lib. */
+  return sqlite3_shutdown();
+}
+
+S3JniApi(sqlite3_status(),jint,1status)(
+  JniArgsEnvClass, jint op, jobject jOutCurrent, jobject jOutHigh,
+                    jboolean reset
+){
+  int iCur = 0, iHigh = 0;
+  int rc = sqlite3_status( op, &iCur, &iHigh, reset );
+  if( 0==rc ){
+    OutputPointer_set_Int32(env, jOutCurrent, iCur);
+    OutputPointer_set_Int32(env, jOutHigh, iHigh);
+  }
+  return (jint)rc;
+}
+
+S3JniApi(sqlite3_status64(),jint,1status64)(
+  JniArgsEnvClass, jint op, jobject jOutCurrent, jobject jOutHigh,
+                      jboolean reset
+){
+  sqlite3_int64 iCur = 0, iHigh = 0;
+  int rc = sqlite3_status64( op, &iCur, &iHigh, reset );
+  if( 0==rc ){
+    OutputPointer_set_Int64(env, jOutCurrent, iCur);
+    OutputPointer_set_Int64(env, jOutHigh, iHigh);
+  }
+  return (jint)rc;
+}
+
+S3JniApi(sqlite3_stmt_status(),jint,1stmt_1status)(
+  JniArgsEnvClass, jobject jStmt, jint op, jboolean reset
+){
+  return sqlite3_stmt_status(PtrGet_sqlite3_stmt(jStmt),
+                             (int)op, reset ? 1 : 0);
+}
+
+
+static int s3jni_strlike_glob(int isLike, JNIEnv *const env,
+                              jbyteArray baG, jbyteArray baT, jint escLike){
+  int rc = 0;
+  jbyte * const pG = s3jni_jbyteArray_bytes(baG);
+  jbyte * const pT = s3jni_jbyteArray_bytes(baT);
+
+  /* Note that we're relying on the byte arrays having been
+     NUL-terminated on the Java side. */
+  rc = isLike
+    ? sqlite3_strlike((const char *)pG, (const char *)pT,
+                      (unsigned int)escLike)
+    : sqlite3_strglob((const char *)pG, (const char *)pT);
+  s3jni_jbyteArray_release(baG, pG);
+  s3jni_jbyteArray_release(baT, pT);
+  return rc;
+}
+
+S3JniApi(sqlite3_strglob(),jint,1strglob)(
+  JniArgsEnvClass, jbyteArray baG, jbyteArray baT
+){
+  return s3jni_strlike_glob(0, env, baG, baT, 0);
+}
+
+S3JniApi(sqlite3_strlike(),jint,1strlike)(
+  JniArgsEnvClass, jbyteArray baG, jbyteArray baT, jint escChar
+){
+  return s3jni_strlike_glob(1, env, baG, baT, escChar);
+}
+
+S3JniApi(sqlite3_sql(),jstring,1sql)(
+  JniArgsEnvClass, jobject jpStmt
+){
+  sqlite3_stmt * const pStmt = PtrGet_sqlite3_stmt(jpStmt);
+  jstring rv = 0;
+  if( pStmt ){
+    const char * zSql = 0;
+    zSql = sqlite3_sql(pStmt);
+    rv = s3jni_utf8_to_jstring( zSql, -1);
+  }
+  return rv;
+}
+
+S3JniApi(sqlite3_step(),jint,1step)(
+  JniArgsEnvClass, jlong jpStmt
+){
+  sqlite3_stmt * const pStmt = LongPtrGet_sqlite3_stmt(jpStmt);
+  return pStmt ? (jint)sqlite3_step(pStmt) : (jint)SQLITE_MISUSE;
+}
+
+S3JniApi(sqlite3_table_column_metadata(),jint,1table_1column_1metadata)(
+  JniArgsEnvClass, jobject jDb, jstring jDbName, jstring jTableName,
+  jstring jColumnName, jobject jDataType, jobject jCollSeq, jobject jNotNull,
+  jobject jPrimaryKey, jobject jAutoinc
+){
+  sqlite3 * const db = PtrGet_sqlite3(jDb);
+  char * zDbName = 0, * zTableName = 0, * zColumnName = 0;
+  const char * pzCollSeq = 0;
+  const char * pzDataType = 0;
+  int pNotNull = 0, pPrimaryKey = 0, pAutoinc = 0;
+  int rc;
+
+  if( !db || !jDbName || !jTableName ) return SQLITE_MISUSE;
+  zDbName = s3jni_jstring_to_utf8(jDbName,0);
+  zTableName = zDbName ? s3jni_jstring_to_utf8(jTableName,0) : 0;
+  zColumnName = (zTableName && jColumnName)
+    ? s3jni_jstring_to_utf8(jColumnName,0) : 0;
+  rc = zTableName
+    ? sqlite3_table_column_metadata(db, zDbName, zTableName,
+                                    zColumnName, &pzDataType, &pzCollSeq,
+                                    &pNotNull, &pPrimaryKey, &pAutoinc)
+    : SQLITE_NOMEM;
+  if( 0==rc ){
+    jstring jseq = jCollSeq
+      ? (pzCollSeq ? s3jni_utf8_to_jstring(pzCollSeq, -1) : 0)
+      : 0;
+    jstring jdtype = jDataType
+      ? (pzDataType ? s3jni_utf8_to_jstring(pzDataType, -1) : 0)
+      : 0;
+    if( (jCollSeq && pzCollSeq && !jseq)
+        || (jDataType && pzDataType && !jdtype) ){
+      rc = SQLITE_NOMEM;
+    }else{
+      if( jNotNull ) OutputPointer_set_Bool(env, jNotNull, pNotNull);
+      if( jPrimaryKey ) OutputPointer_set_Bool(env, jPrimaryKey, pPrimaryKey);
+      if( jAutoinc ) OutputPointer_set_Bool(env, jAutoinc, pAutoinc);
+      if( jCollSeq ) OutputPointer_set_String(env, jCollSeq, jseq);
+      if( jDataType ) OutputPointer_set_String(env, jDataType, jdtype);
+    }
+    S3JniUnrefLocal(jseq);
+    S3JniUnrefLocal(jdtype);
+  }
+  sqlite3_free(zDbName);
+  sqlite3_free(zTableName);
+  sqlite3_free(zColumnName);
+  return rc;
+}
+
+static int s3jni_trace_impl(unsigned traceflag, void *pC, void *pP, void *pX){
+  S3JniDb * const ps = (S3JniDb *)pC;
+  S3JniDeclLocal_env;
+  jobject jX = NULL  /* the tracer's X arg */;
+  jobject jP = NULL  /* the tracer's P arg */;
+  jobject jPUnref = NULL /* potentially a local ref to jP */;
+  int rc = 0;
+  S3JniHook hook;
+
+  S3JniHook_localdup(&ps->hooks.trace, &hook );
+  if( !hook.jObj ){
+    return 0;
+  }
+  switch( traceflag ){
+    case SQLITE_TRACE_STMT:
+      jX = s3jni_utf8_to_jstring( (const char *)pX, -1);
+      if( !jX ) rc = SQLITE_NOMEM;
+      break;
+    case SQLITE_TRACE_PROFILE:
+      jX = (*env)->NewObject(env, SJG.g.cLong, SJG.g.ctorLong1,
+                             (jlong)*((sqlite3_int64*)pX));
+      // hmm. ^^^ (*pX) really is zero.
+      // MARKER(("profile time = %llu\n", *((sqlite3_int64*)pX)));
+      s3jni_oom_check( jX );
+      if( !jX ) rc = SQLITE_NOMEM;
+      break;
+    case SQLITE_TRACE_ROW:
+      break;
+    case SQLITE_TRACE_CLOSE:
+      jP = jPUnref = S3JniRefLocal(ps->jDb);
+      break;
+    default:
+      assert(!"cannot happen - unknown trace flag");
+      rc =  SQLITE_ERROR;
+  }
+  if( 0==rc ){
+    if( !jP ){
+      /* Create a new temporary sqlite3_stmt wrapper */
+      jP = jPUnref = new_java_sqlite3_stmt(env, pP);
+      if( !jP ){
+        rc = SQLITE_NOMEM;
+      }
+    }
+    if( 0==rc ){
+      assert(jP);
+      rc = (int)(*env)->CallIntMethod(env, hook.jObj, hook.midCallback,
+                                      (jint)traceflag, jP, jX);
+      S3JniIfThrew{
+        rc = s3jni_db_exception(ps->pDb, SQLITE_ERROR,
+                                "sqlite3_trace_v2() callback threw.");
+      }
+    }
+  }
+  S3JniUnrefLocal(jPUnref);
+  S3JniUnrefLocal(jX);
+  S3JniHook_localundup(hook);
+  return rc;
+}
+
+S3JniApi(sqlite3_trace_v2(),jint,1trace_1v2)(
+  JniArgsEnvClass,jobject jDb, jint traceMask, jobject jTracer
+){
+  S3JniDb * const ps = S3JniDb_from_java(jDb);
+  int rc;
+
+  if( !ps ) return SQLITE_MISUSE;
+  if( !traceMask || !jTracer ){
+    S3JniDb_mutex_enter;
+    rc = (jint)sqlite3_trace_v2(ps->pDb, 0, 0, 0);
+    S3JniHook_unref(&ps->hooks.trace);
+    S3JniDb_mutex_leave;
+  }else{
+    jclass const klazz = (*env)->GetObjectClass(env, jTracer);
+    S3JniHook hook = S3JniHook_empty;
+    hook.midCallback = (*env)->GetMethodID(
+      env, klazz, "call", "(ILjava/lang/Object;Ljava/lang/Object;)I"
+    );
+    S3JniUnrefLocal(klazz);
+    S3JniIfThrew {
+      S3JniExceptionClear;
+      rc = s3jni_db_error(ps->pDb, SQLITE_ERROR,
+                          "Cannot not find matching call() on "
+                          "TracerCallback object.");
+    }else{
+      hook.jObj = S3JniRefGlobal(jTracer);
+      S3JniDb_mutex_enter;
+      rc = sqlite3_trace_v2(ps->pDb, (unsigned)traceMask, s3jni_trace_impl, ps);
+      if( 0==rc ){
+        S3JniHook_unref(&ps->hooks.trace);
+        ps->hooks.trace = hook /* transfer ownership of reference */;
+      }else{
+        S3JniHook_unref(&hook);
+      }
+      S3JniDb_mutex_leave;
+    }
+  }
+  return rc;
+}
+
+S3JniApi(sqlite3_txn_state(),jint,1txn_1state)(
+  JniArgsEnvClass,jobject jDb, jstring jSchema
+){
+  sqlite3 * const pDb = PtrGet_sqlite3(jDb);
+  int rc = SQLITE_MISUSE;
+  if( pDb ){
+    char * zSchema = jSchema
+      ? s3jni_jstring_to_utf8(jSchema, 0)
+      : 0;
+    if( !jSchema || (zSchema && jSchema) ){
+      rc = sqlite3_txn_state(pDb, zSchema);
+      sqlite3_free(zSchema);
+    }else{
+      rc = SQLITE_NOMEM;
+    }
+  }
+  return rc;
+}
+
+S3JniApi(sqlite3_update_hook(),jobject,1update_1hook)(
+  JniArgsEnvClass, jlong jpDb, jobject jHook
+){
+  return s3jni_updatepre_hook(env, 0, jpDb, jHook);
+}
+
+
+S3JniApi(sqlite3_value_blob(),jbyteArray,1value_1blob)(
+  JniArgsEnvClass, jlong jpSVal
+){
+  sqlite3_value * const sv = LongPtrGet_sqlite3_value(jpSVal);
+  const jbyte * pBytes = sv ? sqlite3_value_blob(sv) : 0;
+  int const nLen = pBytes ? sqlite3_value_bytes(sv) : 0;
+
+  s3jni_oom_check( nLen ? !!pBytes : 1 );
+  return pBytes
+    ? s3jni_new_jbyteArray(pBytes, nLen)
+    : NULL;
+}
+
+S3JniApi(sqlite3_value_bytes(),jint,1value_1bytes)(
+  JniArgsEnvClass, jlong jpSVal
+){
+  sqlite3_value * const sv = LongPtrGet_sqlite3_value(jpSVal);
+  return sv ? sqlite3_value_bytes(sv) : 0;
+}
+
+S3JniApi(sqlite3_value_bytes16(),jint,1value_1bytes16)(
+  JniArgsEnvClass, jlong jpSVal
+){
+  sqlite3_value * const sv = LongPtrGet_sqlite3_value(jpSVal);
+  return sv ? sqlite3_value_bytes16(sv) : 0;
+}
+
+
+S3JniApi(sqlite3_value_double(),jdouble,1value_1double)(
+  JniArgsEnvClass, jlong jpSVal
+){
+  sqlite3_value * const sv = LongPtrGet_sqlite3_value(jpSVal);
+  return (jdouble) (sv ? sqlite3_value_double(sv) : 0.0);
+}
+
+
+S3JniApi(sqlite3_value_dup(),jobject,1value_1dup)(
+  JniArgsEnvClass, jlong jpSVal
+){
+  sqlite3_value * const sv = LongPtrGet_sqlite3_value(jpSVal);
+  sqlite3_value * const sd = sv ? sqlite3_value_dup(sv) : 0;
+  jobject rv = sd ? new_java_sqlite3_value(env, sd) : 0;
+  if( sd && !rv ) {
+    /* OOM */
+    sqlite3_value_free(sd);
+  }
+  return rv;
+}
+
+S3JniApi(sqlite3_value_free(),void,1value_1free)(
+  JniArgsEnvClass, jlong jpSVal
+){
+  sqlite3_value * const sv = LongPtrGet_sqlite3_value(jpSVal);
+  if( sv ){
+    sqlite3_value_free(sv);
+  }
+}
+
+S3JniApi(sqlite3_value_int(),jint,1value_1int)(
+  JniArgsEnvClass, jlong jpSVal
+){
+  sqlite3_value * const sv = LongPtrGet_sqlite3_value(jpSVal);
+  return (jint) (sv ? sqlite3_value_int(sv) : 0);
+}
+
+S3JniApi(sqlite3_value_int64(),jlong,1value_1int64)(
+  JniArgsEnvClass, jlong jpSVal
+){
+  sqlite3_value * const sv = LongPtrGet_sqlite3_value(jpSVal);
+  return (jlong) (sv ? sqlite3_value_int64(sv) : 0LL);
+}
+
+S3JniApi(sqlite3_value_java_object(),jobject,1value_1java_1object)(
+  JniArgsEnvClass, jlong jpSVal
+){
+  sqlite3_value * const sv = LongPtrGet_sqlite3_value(jpSVal);
+  return sv
+    ? sqlite3_value_pointer(sv, s3jni__value_jref_key)
+    : 0;
+}
+
+S3JniApi(sqlite3_value_nio_buffer(),jobject,1value_1nio_1buffer)(
+  JniArgsEnvClass, jobject jVal
+){
+  sqlite3_value * const sv = PtrGet_sqlite3_value(jVal);
+  jobject rv = 0;
+  if( sv ){
+    const void * const p = sqlite3_value_blob(sv);
+    if( p ){
+      const int n = sqlite3_value_bytes(sv);
+      rv = s3jni__blob_to_ByteBuffer(env, p, n);
+    }
+  }
+  return rv;
+}
+
+S3JniApi(sqlite3_value_text(),jbyteArray,1value_1text)(
+  JniArgsEnvClass, jlong jpSVal
+){
+  sqlite3_value * const sv = LongPtrGet_sqlite3_value(jpSVal);
+  const unsigned char * const p = sv ? sqlite3_value_text(sv) : 0;
+  int const n = p ? sqlite3_value_bytes(sv) : 0;
+  return p ? s3jni_new_jbyteArray(p, n) : 0;
+}
+
+#if 0
+// this impl might prove useful.
+S3JniApi(sqlite3_value_text(),jstring,1value_1text)(
+  JniArgsEnvClass, jlong jpSVal
+){
+  sqlite3_value * const sv = LongPtrGet_sqlite3_value(jpSVal);
+  const unsigned char * const p = sv ? sqlite3_value_text(sv) : 0;
+  int const n = p ? sqlite3_value_bytes(sv) : 0;
+  return p ? s3jni_utf8_to_jstring( (const char *)p, n) : 0;
+}
+#endif
+
+S3JniApi(sqlite3_value_text16(),jstring,1value_1text16)(
+  JniArgsEnvClass, jlong jpSVal
+){
+  sqlite3_value * const sv = LongPtrGet_sqlite3_value(jpSVal);
+  const int n = sv ? sqlite3_value_bytes16(sv) : 0;
+  const void * const p = sv ? sqlite3_value_text16(sv) : 0;
+  return p ? s3jni_text16_to_jstring(env, p, n) : 0;
+}
+
+JniDecl(void,1jni_1internal_1details)(JniArgsEnvClass){
+  MARKER(("\nVarious bits of internal info:\n"));
+  puts("FTS5 is "
+#ifdef SQLITE_ENABLE_FTS5
+       "available"
+#else
+       "unavailable"
+#endif
+       "."
+       );
+  puts("sizeofs:");
+#define SO(T) printf("\tsizeof(" #T ") = %u\n", (unsigned)sizeof(T))
+  SO(void*);
+  SO(jmethodID);
+  SO(jfieldID);
+  SO(S3JniEnv);
+  SO(S3JniHook);
+  SO(S3JniDb);
+  SO(S3JniNphOps);
+  printf("\t(^^^ %u NativePointerHolder/OutputPointer.T types)\n",
+         (unsigned)S3Jni_NphCache_size);
+  SO(S3JniGlobal);
+  SO(S3JniGlobal.nph);
+  SO(S3JniGlobal.metrics);
+  SO(S3JniAutoExtension);
+  SO(S3JniUdf);
+#undef SO
+#ifdef SQLITE_JNI_ENABLE_METRICS
+  printf("Cache info:\n");
+  printf("\tJNIEnv cache: %u allocs, %u misses, %u hits\n",
+         SJG.metrics.nEnvAlloc, SJG.metrics.nEnvMiss,
+         SJG.metrics.nEnvHit);
+  printf("Mutex entry:"
+         "\n\tglobal       = %u"
+         "\n\tenv          = %u"
+         "\n\tnph          = %u for S3JniNphOp init"
+         "\n\thook         = %u"
+         "\n\tperDb        = %u"
+         "\n\tautoExt list = %u"
+         "\n\tS3JniUdf     = %u (free-list)"
+         "\n\tmetrics      = %u\n",
+         SJG.metrics.nMutexGlobal, SJG.metrics.nMutexEnv,
+         SJG.metrics.nMutexNph, SJG.metrics.nMutexHook,
+         SJG.metrics.nMutexPerDb, SJG.metrics.nMutexAutoExt,
+         SJG.metrics.nMutexUdf, SJG.metrics.nMetrics);
+  puts("Allocs:");
+  printf("\tS3JniDb:  %u alloced (*%u = %u bytes), %u recycled\n",
+         SJG.metrics.nPdbAlloc, (unsigned) sizeof(S3JniDb),
+         (unsigned)(SJG.metrics.nPdbAlloc * sizeof(S3JniDb)),
+         SJG.metrics.nPdbRecycled);
+  printf("\tS3JniUdf: %u alloced (*%u = %u bytes), %u recycled\n",
+         SJG.metrics.nUdfAlloc, (unsigned) sizeof(S3JniUdf),
+         (unsigned)(SJG.metrics.nUdfAlloc * sizeof(S3JniUdf)),
+         SJG.metrics.nUdfRecycled);
+  printf("\tS3JniHook: %u alloced (*%u = %u bytes), %u recycled\n",
+         SJG.metrics.nHookAlloc, (unsigned) sizeof(S3JniHook),
+         (unsigned)(SJG.metrics.nHookAlloc * sizeof(S3JniHook)),
+         SJG.metrics.nHookRecycled);
+  printf("\tS3JniEnv: %u alloced (*%u = %u bytes)\n",
+         SJG.metrics.nEnvAlloc, (unsigned) sizeof(S3JniEnv),
+         (unsigned)(SJG.metrics.nEnvAlloc * sizeof(S3JniEnv)));
+  puts("Java-side UDF calls:");
+#define UDF(T) printf("\t%-8s = %u\n", "x" #T, SJG.metrics.udf.n##T)
+  UDF(Func); UDF(Step); UDF(Final); UDF(Value); UDF(Inverse);
+#undef UDF
+  printf("xDestroy calls across all callback types: %u\n",
+         SJG.metrics.nDestroy);
+#else
+  puts("Built without SQLITE_JNI_ENABLE_METRICS.");
+#endif
+}
+
+////////////////////////////////////////////////////////////////////////
+// End of the sqlite3_... API bindings. Next up, FTS5...
+////////////////////////////////////////////////////////////////////////
+#ifdef SQLITE_ENABLE_FTS5
+
+/* Creates a verbose JNI Fts5 function name. */
+#define JniFuncNameFtsXA(Suffix)                  \
+  Java_org_sqlite_jni_fts5_Fts5ExtensionApi_ ## Suffix
+#define JniFuncNameFtsApi(Suffix)                  \
+  Java_org_sqlite_jni_fts5_fts5_1api_ ## Suffix
+#define JniFuncNameFtsTok(Suffix)                  \
+  Java_org_sqlite_jni_fts5_fts5_tokenizer_ ## Suffix
+
+#define JniDeclFtsXA(ReturnType,Suffix)           \
+  JNIEXPORT ReturnType JNICALL                  \
+  JniFuncNameFtsXA(Suffix)
+#define JniDeclFtsApi(ReturnType,Suffix)          \
+  JNIEXPORT ReturnType JNICALL                  \
+  JniFuncNameFtsApi(Suffix)
+#define JniDeclFtsTok(ReturnType,Suffix)          \
+  JNIEXPORT ReturnType JNICALL                  \
+  JniFuncNameFtsTok(Suffix)
+
+#define PtrGet_fts5_api(OBJ) NativePointerHolder_get(OBJ,S3JniNph(fts5_api))
+#define PtrGet_fts5_tokenizer(OBJ) NativePointerHolder_get(OBJ,S3JniNph(fts5_tokenizer))
+#define PtrGet_Fts5Context(OBJ) NativePointerHolder_get(OBJ,S3JniNph(Fts5Context))
+#define PtrGet_Fts5Tokenizer(OBJ) NativePointerHolder_get(OBJ,S3JniNph(Fts5Tokenizer))
+#define s3jni_ftsext() &sFts5Api/*singleton from sqlite3.c*/
+#define Fts5ExtDecl Fts5ExtensionApi const * const ext = s3jni_ftsext()
+
+/**
+   State for binding Java-side FTS5 auxiliary functions.
+*/
+typedef struct {
+  jobject jObj          /* functor instance */;
+  jobject jUserData     /* 2nd arg to JNI binding of
+                           xCreateFunction(), ostensibly the 3rd arg
+                           to the lib-level xCreateFunction(), except
+                           that we necessarily use that slot for a
+                           Fts5JniAux instance. */;
+  char * zFuncName      /* Only for error reporting and debug logging */;
+  jmethodID jmid        /* callback member's method ID */;
+} Fts5JniAux;
+
+static void Fts5JniAux_free(Fts5JniAux * const s){
+  S3JniDeclLocal_env;
+  if( env ){
+    /*MARKER(("FTS5 aux function cleanup: %s\n", s->zFuncName));*/
+    s3jni_call_xDestroy(s->jObj);
+    S3JniUnrefGlobal(s->jObj);
+    S3JniUnrefGlobal(s->jUserData);
+  }
+  sqlite3_free(s->zFuncName);
+  sqlite3_free(s);
+}
+
+static void Fts5JniAux_xDestroy(void *p){
+  if( p ) Fts5JniAux_free(p);
+}
+
+static Fts5JniAux * Fts5JniAux_alloc(JNIEnv * const env, jobject jObj){
+  Fts5JniAux * s = s3jni_malloc( sizeof(Fts5JniAux));
+
+  if( s ){
+    jclass klazz;
+    memset(s, 0, sizeof(Fts5JniAux));
+    s->jObj = S3JniRefGlobal(jObj);
+    klazz = (*env)->GetObjectClass(env, jObj);
+    s->jmid = (*env)->GetMethodID(env, klazz, "call",
+                                  "(Lorg/sqlite/jni/fts5/Fts5ExtensionApi;"
+                                  "Lorg/sqlite/jni/fts5/Fts5Context;"
+                                  "Lorg/sqlite/jni/capi/sqlite3_context;"
+                                  "[Lorg/sqlite/jni/capi/sqlite3_value;)V");
+    S3JniUnrefLocal(klazz);
+    S3JniIfThrew{
+      S3JniExceptionReport;
+      S3JniExceptionClear;
+      Fts5JniAux_free(s);
+      s = 0;
+    }
+  }
+  return s;
+}
+
+static inline jobject new_java_Fts5Context(JNIEnv * const env, Fts5Context *sv){
+  return NativePointerHolder_new(env, S3JniNph(Fts5Context), sv);
+}
+static inline jobject new_java_fts5_api(JNIEnv * const env, fts5_api *sv){
+  return NativePointerHolder_new(env, S3JniNph(fts5_api), sv);
+}
+
+/*
+** Returns a per-JNIEnv global ref to the Fts5ExtensionApi singleton
+** instance, or NULL on OOM.
+*/
+static jobject s3jni_getFts5ExensionApi(JNIEnv * const env){
+  if( !SJG.fts5.jExt ){
+    S3JniGlobal_mutex_enter;
+    if( !SJG.fts5.jExt ){
+      jobject const pNPH = NativePointerHolder_new(
+        env, S3JniNph(Fts5ExtensionApi), s3jni_ftsext()
+      );
+      if( pNPH ){
+        SJG.fts5.jExt = S3JniRefGlobal(pNPH);
+        S3JniUnrefLocal(pNPH);
+      }
+    }
+    S3JniGlobal_mutex_leave;
+  }
+  return SJG.fts5.jExt;
+}
+
+/*
+** Returns a pointer to the fts5_api instance for database connection
+** db.  If an error occurs, returns NULL and leaves an error in the
+** database handle (accessible using sqlite3_errcode()/errmsg()).
+*/
+static fts5_api *s3jni_fts5_api_from_db(sqlite3 *db){
+  fts5_api *pRet = 0;
+  sqlite3_stmt *pStmt = 0;
+  if( SQLITE_OK==sqlite3_prepare(db, "SELECT fts5(?1)", -1, &pStmt, 0) ){
+    sqlite3_bind_pointer(pStmt, 1, (void*)&pRet, "fts5_api_ptr", NULL);
+    sqlite3_step(pStmt);
+  }
+  sqlite3_finalize(pStmt);
+  return pRet;
+}
+
+JniDeclFtsApi(jobject,getInstanceForDb)(JniArgsEnvClass,jobject jDb){
+  S3JniDb * const ps = S3JniDb_from_java(jDb);
+#if 0
+  jobject rv = 0;
+  if( !ps ) return 0;
+  else if( ps->fts.jApi ){
+    rv = ps->fts.jApi;
+  }else{
+    fts5_api * const pApi = s3jni_fts5_api_from_db(ps->pDb);
+    if( pApi ){
+      rv = new_java_fts5_api(env, pApi);
+      ps->fts.jApi = rv ? S3JniRefGlobal(rv) : 0;
+    }
+  }
+  return rv;
+#else
+  if( ps && !ps->fts.jApi ){
+    S3JniDb_mutex_enter;
+    if( !ps->fts.jApi ){
+      fts5_api * const pApi = s3jni_fts5_api_from_db(ps->pDb);
+      if( pApi ){
+        jobject const rv = new_java_fts5_api(env, pApi);
+        ps->fts.jApi = rv ? S3JniRefGlobal(rv) : 0;
+      }
+    }
+    S3JniDb_mutex_leave;
+  }
+  return ps ? ps->fts.jApi : 0;
+#endif
+}
+
+
+JniDeclFtsXA(jobject,getInstance)(JniArgsEnvClass){
+  return s3jni_getFts5ExensionApi(env);
+}
+
+JniDeclFtsXA(jint,xColumnCount)(JniArgsEnvObj,jobject jCtx){
+  Fts5ExtDecl;
+  return (jint)ext->xColumnCount(PtrGet_Fts5Context(jCtx));
+}
+
+JniDeclFtsXA(jint,xColumnSize)(JniArgsEnvObj,jobject jCtx, jint iIdx, jobject jOut32){
+  Fts5ExtDecl;
+  int n1 = 0;
+  int const rc = ext->xColumnSize(PtrGet_Fts5Context(jCtx), (int)iIdx, &n1);
+  if( 0==rc ) OutputPointer_set_Int32(env, jOut32, n1);
+  return rc;
+}
+
+JniDeclFtsXA(jint,xColumnText)(JniArgsEnvObj,jobject jCtx, jint iCol,
+                           jobject jOut){
+  Fts5ExtDecl;
+  const char *pz = 0;
+  int pn = 0;
+  int rc = ext->xColumnText(PtrGet_Fts5Context(jCtx), (int)iCol,
+                             &pz, &pn);
+  if( 0==rc ){
+    jstring jstr = pz ? s3jni_utf8_to_jstring( pz, pn) : 0;
+    if( pz ){
+      if( jstr ){
+        OutputPointer_set_String(env, jOut, jstr);
+        S3JniUnrefLocal(jstr)/*jOut has a reference*/;
+      }else{
+        rc = SQLITE_NOMEM;
+      }
+    }
+  }
+  return (jint)rc;
+}
+
+JniDeclFtsXA(jint,xColumnTotalSize)(JniArgsEnvObj,jobject jCtx, jint iCol, jobject jOut64){
+  Fts5ExtDecl;
+  sqlite3_int64 nOut = 0;
+  int const rc = ext->xColumnTotalSize(PtrGet_Fts5Context(jCtx), (int)iCol, &nOut);
+  if( 0==rc && jOut64 ) OutputPointer_set_Int64(env, jOut64, (jlong)nOut);
+  return (jint)rc;
+}
+
+/*
+** Proxy for fts5_extension_function instances plugged in via
+** fts5_api::xCreateFunction().
+*/
+static void s3jni_fts5_extension_function(Fts5ExtensionApi const *pApi,
+                                          Fts5Context *pFts,
+                                          sqlite3_context *pCx,
+                                          int argc,
+                                          sqlite3_value **argv){
+  Fts5JniAux * const pAux = pApi->xUserData(pFts);
+  jobject jpCx = 0;
+  jobjectArray jArgv = 0;
+  jobject jpFts = 0;
+  jobject jFXA;
+  int rc;
+  S3JniDeclLocal_env;
+
+  assert(pAux);
+  jFXA = s3jni_getFts5ExensionApi(env);
+  if( !jFXA ) goto error_oom;
+  jpFts = new_java_Fts5Context(env, pFts);
+  if( !jpFts ) goto error_oom;
+  rc = udf_args(env, pCx, argc, argv, &jpCx, &jArgv);
+  if( rc ) goto error_oom;
+  (*env)->CallVoidMethod(env, pAux->jObj, pAux->jmid,
+                         jFXA, jpFts, jpCx, jArgv);
+  S3JniIfThrew{
+    udf_report_exception(env, 1, pCx, pAux->zFuncName, "call");
+  }
+  udf_unargs(env, jpCx, argc, jArgv);
+  S3JniUnrefLocal(jpFts);
+  S3JniUnrefLocal(jpCx);
+  S3JniUnrefLocal(jArgv);
+  return;
+error_oom:
+  s3jni_db_oom( sqlite3_context_db_handle(pCx) );
+  assert( !jArgv );
+  assert( !jpCx );
+  S3JniUnrefLocal(jpFts);
+  sqlite3_result_error_nomem(pCx);
+  return;
+}
+
+JniDeclFtsApi(jint,xCreateFunction)(JniArgsEnvObj, jstring jName,
+                                  jobject jUserData, jobject jFunc){
+  fts5_api * const pApi = PtrGet_fts5_api(jSelf);
+  int rc;
+  char * zName;
+  Fts5JniAux * pAux;
+
+  assert(pApi);
+  zName = s3jni_jstring_to_utf8( jName, 0);
+  if(!zName) return SQLITE_NOMEM;
+  pAux = Fts5JniAux_alloc(env, jFunc);
+  if( pAux ){
+    rc = pApi->xCreateFunction(pApi, zName, pAux,
+                               s3jni_fts5_extension_function,
+                               Fts5JniAux_xDestroy);
+  }else{
+    rc = SQLITE_NOMEM;
+  }
+  if( 0==rc ){
+    pAux->jUserData = jUserData ? S3JniRefGlobal(jUserData) : 0;
+    pAux->zFuncName = zName;
+  }else{
+    sqlite3_free(zName);
+  }
+  return (jint)rc;
+}
+
+
+typedef struct S3JniFts5AuxData S3JniFts5AuxData;
+/*
+** TODO: this middle-man struct is no longer necessary. Conider
+** removing it and passing around jObj itself instead.
+*/
+struct S3JniFts5AuxData {
+  jobject jObj;
+};
+
+static void S3JniFts5AuxData_xDestroy(void *x){
+  if( x ){
+    S3JniFts5AuxData * const p = x;
+    if( p->jObj ){
+      S3JniDeclLocal_env;
+      s3jni_call_xDestroy(p->jObj);
+      S3JniUnrefGlobal(p->jObj);
+    }
+    sqlite3_free(x);
+  }
+}
+
+JniDeclFtsXA(jobject,xGetAuxdata)(JniArgsEnvObj,jobject jCtx, jboolean bClear){
+  Fts5ExtDecl;
+  jobject rv = 0;
+  S3JniFts5AuxData * const pAux = ext->xGetAuxdata(PtrGet_Fts5Context(jCtx), bClear);
+  if( pAux ){
+    if( bClear ){
+      if( pAux->jObj ){
+        rv = S3JniRefLocal(pAux->jObj);
+        S3JniUnrefGlobal(pAux->jObj);
+      }
+      /* Note that we do not call xDestroy() in this case. */
+      sqlite3_free(pAux);
+    }else{
+      rv = pAux->jObj;
+    }
+  }
+  return rv;
+}
+
+JniDeclFtsXA(jint,xInst)(JniArgsEnvObj,jobject jCtx, jint iIdx, jobject jOutPhrase,
+                    jobject jOutCol, jobject jOutOff){
+  Fts5ExtDecl;
+  int n1 = 0, n2 = 2, n3 = 0;
+  int const rc = ext->xInst(PtrGet_Fts5Context(jCtx), (int)iIdx, &n1, &n2, &n3);
+  if( 0==rc ){
+    OutputPointer_set_Int32(env, jOutPhrase, n1);
+    OutputPointer_set_Int32(env, jOutCol, n2);
+    OutputPointer_set_Int32(env, jOutOff, n3);
+  }
+  return rc;
+}
+
+JniDeclFtsXA(jint,xInstCount)(JniArgsEnvObj,jobject jCtx, jobject jOut32){
+  Fts5ExtDecl;
+  int nOut = 0;
+  int const rc = ext->xInstCount(PtrGet_Fts5Context(jCtx), &nOut);
+  if( 0==rc && jOut32 ) OutputPointer_set_Int32(env, jOut32, nOut);
+  return (jint)rc;
+}
+
+JniDeclFtsXA(jint,xPhraseCount)(JniArgsEnvObj,jobject jCtx){
+  Fts5ExtDecl;
+  return (jint)ext->xPhraseCount(PtrGet_Fts5Context(jCtx));
+}
+
+/* Copy the 'a' and 'b' fields from pSrc to Fts5PhraseIter object jIter. */
+static void s3jni_phraseIter_NToJ(JNIEnv *const env,
+                                  Fts5PhraseIter const * const pSrc,
+                                  jobject jIter){
+  S3JniGlobalType * const g = &S3JniGlobal;
+  assert(g->fts5.jPhraseIter.fidA);
+  (*env)->SetLongField(env, jIter, g->fts5.jPhraseIter.fidA,
+                       S3JniCast_P2L(pSrc->a));
+  S3JniExceptionIsFatal("Cannot set Fts5PhraseIter.a field.");
+  (*env)->SetLongField(env, jIter, g->fts5.jPhraseIter.fidB,
+                       S3JniCast_P2L(pSrc->b));
+  S3JniExceptionIsFatal("Cannot set Fts5PhraseIter.b field.");
+}
+
+/* Copy the 'a' and 'b' fields from Fts5PhraseIter object jIter to pDest. */
+static void s3jni_phraseIter_JToN(JNIEnv *const env,  jobject jIter,
+                                  Fts5PhraseIter * const pDest){
+  S3JniGlobalType * const g = &S3JniGlobal;
+  assert(g->fts5.jPhraseIter.fidA);
+  pDest->a = S3JniCast_L2P(
+    (*env)->GetLongField(env, jIter, g->fts5.jPhraseIter.fidA)
+  );
+  S3JniExceptionIsFatal("Cannot get Fts5PhraseIter.a field.");
+  pDest->b = S3JniCast_L2P(
+    (*env)->GetLongField(env, jIter, g->fts5.jPhraseIter.fidB)
+  );
+  S3JniExceptionIsFatal("Cannot get Fts5PhraseIter.b field.");
+}
+
+JniDeclFtsXA(jint,xPhraseFirst)(JniArgsEnvObj,jobject jCtx, jint iPhrase,
+                            jobject jIter, jobject jOutCol,
+                            jobject jOutOff){
+  Fts5ExtDecl;
+  Fts5PhraseIter iter;
+  int rc, iCol = 0, iOff = 0;
+  rc = ext->xPhraseFirst(PtrGet_Fts5Context(jCtx), (int)iPhrase,
+                         &iter, &iCol, &iOff);
+  if( 0==rc ){
+    OutputPointer_set_Int32(env, jOutCol, iCol);
+    OutputPointer_set_Int32(env, jOutOff, iOff);
+    s3jni_phraseIter_NToJ(env, &iter, jIter);
+  }
+  return rc;
+}
+
+JniDeclFtsXA(jint,xPhraseFirstColumn)(JniArgsEnvObj,jobject jCtx, jint iPhrase,
+                                  jobject jIter, jobject jOutCol){
+  Fts5ExtDecl;
+  Fts5PhraseIter iter;
+  int rc, iCol = 0;
+  rc = ext->xPhraseFirstColumn(PtrGet_Fts5Context(jCtx), (int)iPhrase,
+                                &iter, &iCol);
+  if( 0==rc ){
+    OutputPointer_set_Int32(env, jOutCol, iCol);
+    s3jni_phraseIter_NToJ(env, &iter, jIter);
+  }
+  return rc;
+}
+
+JniDeclFtsXA(void,xPhraseNext)(JniArgsEnvObj,jobject jCtx, jobject jIter,
+                           jobject jOutCol, jobject jOutOff){
+  Fts5ExtDecl;
+  Fts5PhraseIter iter;
+  int iCol = 0, iOff = 0;
+  s3jni_phraseIter_JToN(env, jIter, &iter);
+  ext->xPhraseNext(PtrGet_Fts5Context(jCtx), &iter, &iCol, &iOff);
+  OutputPointer_set_Int32(env, jOutCol, iCol);
+  OutputPointer_set_Int32(env, jOutOff, iOff);
+  s3jni_phraseIter_NToJ(env, &iter, jIter);
+}
+
+JniDeclFtsXA(void,xPhraseNextColumn)(JniArgsEnvObj,jobject jCtx, jobject jIter,
+                                 jobject jOutCol){
+  Fts5ExtDecl;
+  Fts5PhraseIter iter;
+  int iCol = 0;
+  s3jni_phraseIter_JToN(env, jIter, &iter);
+  ext->xPhraseNextColumn(PtrGet_Fts5Context(jCtx), &iter, &iCol);
+  OutputPointer_set_Int32(env, jOutCol, iCol);
+  s3jni_phraseIter_NToJ(env, &iter, jIter);
+}
+
+
+JniDeclFtsXA(jint,xPhraseSize)(JniArgsEnvObj,jobject jCtx, jint iPhrase){
+  Fts5ExtDecl;
+  return (jint)ext->xPhraseSize(PtrGet_Fts5Context(jCtx), (int)iPhrase);
+}
+
+/* State for use with xQueryPhrase() and xTokenize(). */
+struct s3jni_xQueryPhraseState {
+  Fts5ExtensionApi const * ext;
+  jmethodID midCallback; /* jCallback->call() method */
+  jobject jCallback;   /* Fts5ExtensionApi.XQueryPhraseCallback instance */
+  jobject jFcx;        /* (Fts5Context*) for xQueryPhrase()
+                          callback. This is NOT the instance that is
+                          passed to xQueryPhrase(), it's the one
+                          created by xQueryPhrase() for use by its
+                          callback. */
+  /* State for xTokenize() */
+  struct {
+    const char * zPrev;
+    int nPrev;
+    jbyteArray jba;
+  } tok;
+};
+
+static int s3jni_xQueryPhrase(const Fts5ExtensionApi *xapi,
+                              Fts5Context * pFcx, void *pData){
+  struct s3jni_xQueryPhraseState * const s = pData;
+  S3JniDeclLocal_env;
+
+  if( !s->jFcx ){
+    s->jFcx = new_java_Fts5Context(env, pFcx);
+    if( !s->jFcx ) return SQLITE_NOMEM;
+  }
+  int rc = (int)(*env)->CallIntMethod(env, s->jCallback, s->midCallback,
+                                      SJG.fts5.jExt, s->jFcx);
+  S3JniIfThrew{
+    S3JniExceptionWarnCallbackThrew("xQueryPhrase() callback");
+    S3JniExceptionClear;
+    rc = SQLITE_ERROR;
+  }
+  return rc;
+}
+
+JniDeclFtsXA(jint,xQueryPhrase)(JniArgsEnvObj,jobject jFcx, jint iPhrase,
+                            jobject jCallback){
+  Fts5ExtDecl;
+  int rc;
+  struct s3jni_xQueryPhraseState s;
+  jclass klazz = jCallback ? (*env)->GetObjectClass(env, jCallback) : NULL;
+
+  if( !klazz ) return SQLITE_MISUSE;
+  s.jCallback = jCallback;
+  s.jFcx = 0;
+  s.ext = ext;
+  s.midCallback = (*env)->GetMethodID(env, klazz, "call",
+                                      "(Lorg/sqlite/jni/fts5/Fts5ExtensionApi;"
+                                      "Lorg/sqlite/jni/fts5/Fts5Context;)I");
+  S3JniUnrefLocal(klazz);
+  S3JniExceptionIsFatal("Could not extract xQueryPhraseCallback.call() method.");
+  rc = ext->xQueryPhrase(PtrGet_Fts5Context(jFcx), iPhrase, &s,
+                         s3jni_xQueryPhrase);
+  S3JniUnrefLocal(s.jFcx);
+  return (jint)rc;
+}
+
+
+JniDeclFtsXA(jint,xRowCount)(JniArgsEnvObj,jobject jCtx, jobject jOut64){
+  Fts5ExtDecl;
+  sqlite3_int64 nOut = 0;
+  int const rc = ext->xRowCount(PtrGet_Fts5Context(jCtx), &nOut);
+  if( 0==rc && jOut64 ) OutputPointer_set_Int64(env, jOut64, (jlong)nOut);
+  return (jint)rc;
+}
+
+JniDeclFtsXA(jlong,xRowid)(JniArgsEnvObj,jobject jCtx){
+  Fts5ExtDecl;
+  return (jlong)ext->xRowid(PtrGet_Fts5Context(jCtx));
+}
+
+JniDeclFtsXA(jint,xSetAuxdata)(JniArgsEnvObj,jobject jCtx, jobject jAux){
+  Fts5ExtDecl;
+  int rc;
+  S3JniFts5AuxData * pAux;
+
+  pAux = s3jni_malloc( sizeof(*pAux));
+  if( !pAux ){
+    if( jAux ){
+      /* Emulate how xSetAuxdata() behaves when it cannot alloc
+      ** its auxdata wrapper. */
+      s3jni_call_xDestroy(jAux);
+    }
+    return SQLITE_NOMEM;
+  }
+  pAux->jObj = S3JniRefGlobal(jAux);
+  rc = ext->xSetAuxdata(PtrGet_Fts5Context(jCtx), pAux,
+                         S3JniFts5AuxData_xDestroy);
+  return rc;
+}
+
+/* xToken() impl for xTokenize(). */
+static int s3jni_xTokenize_xToken(void *p, int tFlags, const char* z,
+                                  int nZ, int iStart, int iEnd){
+  int rc;
+  S3JniDeclLocal_env;
+  struct s3jni_xQueryPhraseState * const s = p;
+  jbyteArray jba;
+
+  S3JniUnrefLocal(s->tok.jba);
+  s->tok.zPrev = z;
+  s->tok.nPrev = nZ;
+  s->tok.jba = s3jni_new_jbyteArray(z, nZ);
+  if( !s->tok.jba ) return SQLITE_NOMEM;
+  jba = s->tok.jba;
+  rc = (int)(*env)->CallIntMethod(env, s->jCallback, s->midCallback,
+                                  (jint)tFlags, jba, (jint)iStart,
+                                  (jint)iEnd);
+  S3JniIfThrew {
+    S3JniExceptionWarnCallbackThrew("xTokenize() callback");
+    rc = SQLITE_ERROR;
+  }
+  return rc;
+}
+
+/*
+** Proxy for Fts5ExtensionApi.xTokenize() and
+** fts5_tokenizer.xTokenize()
+*/
+static jint s3jni_fts5_xTokenize(JniArgsEnvObj, S3JniNphOp const *pRef,
+                                 jint tokFlags, jobject jFcx,
+                                 jbyteArray jbaText, jobject jCallback){
+  Fts5ExtDecl;
+  struct s3jni_xQueryPhraseState s;
+  int rc = 0;
+  jbyte * const pText = jCallback ? s3jni_jbyteArray_bytes(jbaText) : 0;
+  jsize nText = pText ? (*env)->GetArrayLength(env, jbaText) : 0;
+  jclass const klazz = jCallback ? (*env)->GetObjectClass(env, jCallback) : NULL;
+
+  if( !klazz ) return SQLITE_MISUSE;
+  memset(&s, 0, sizeof(s));
+  s.jCallback = jCallback;
+  s.jFcx = jFcx;
+  s.ext = ext;
+  s.midCallback = (*env)->GetMethodID(env, klazz, "call", "(I[BII)I");
+  S3JniUnrefLocal(klazz);
+  S3JniIfThrew {
+    S3JniExceptionReport;
+    S3JniExceptionClear;
+    s3jni_jbyteArray_release(jbaText, pText);
+    return SQLITE_ERROR;
+  }
+  s.tok.jba = S3JniRefLocal(jbaText);
+  s.tok.zPrev = (const char *)pText;
+  s.tok.nPrev = (int)nText;
+  if( pRef == S3JniNph(Fts5ExtensionApi) ){
+    rc = ext->xTokenize(PtrGet_Fts5Context(jFcx),
+                         (const char *)pText, (int)nText,
+                         &s, s3jni_xTokenize_xToken);
+  }else if( pRef == S3JniNph(fts5_tokenizer) ){
+    fts5_tokenizer * const pTok = PtrGet_fts5_tokenizer(jSelf);
+    rc = pTok->xTokenize(PtrGet_Fts5Tokenizer(jFcx), &s, tokFlags,
+                         (const char *)pText, (int)nText,
+                         s3jni_xTokenize_xToken);
+  }else{
+    (*env)->FatalError(env, "This cannot happen. Maintenance required.");
+  }
+  if( s.tok.jba ){
+    assert( s.tok.zPrev );
+    S3JniUnrefLocal(s.tok.jba);
+  }
+  s3jni_jbyteArray_release(jbaText, pText);
+  return (jint)rc;
+}
+
+JniDeclFtsXA(jint,xTokenize)(JniArgsEnvObj,jobject jFcx, jbyteArray jbaText,
+                             jobject jCallback){
+  return s3jni_fts5_xTokenize(env, jSelf, S3JniNph(Fts5ExtensionApi),
+                              0, jFcx, jbaText, jCallback);
+}
+
+JniDeclFtsTok(jint,xTokenize)(JniArgsEnvObj,jobject jFcx, jint tokFlags,
+                              jbyteArray jbaText, jobject jCallback){
+  return s3jni_fts5_xTokenize(env, jSelf, S3JniNph(Fts5Tokenizer),
+                              tokFlags, jFcx, jbaText, jCallback);
+}
+
+
+JniDeclFtsXA(jobject,xUserData)(JniArgsEnvObj,jobject jFcx){
+  Fts5ExtDecl;
+  Fts5JniAux * const pAux = ext->xUserData(PtrGet_Fts5Context(jFcx));
+  return pAux ? pAux->jUserData : 0;
+}
+
+#endif /* SQLITE_ENABLE_FTS5 */
+
+////////////////////////////////////////////////////////////////////////
+// End of the main API bindings. Start of SQLTester bits...
+////////////////////////////////////////////////////////////////////////
+
+#ifdef SQLITE_JNI_ENABLE_SQLTester
+typedef struct SQLTesterJni SQLTesterJni;
+struct SQLTesterJni {
+  sqlite3_int64 nDup;
+};
+static SQLTesterJni SQLTester = {
+  0
+};
+
+static void SQLTester_dup_destructor(void*pToFree){
+  u64 *p = (u64*)pToFree;
+  assert( p!=0 );
+  p--;
+  assert( p[0]==0x2bbf4b7c );
+  p[0] = 0;
+  p[1] = 0;
+  sqlite3_free(p);
+}
+
+/*
+** Implementation of
+**
+**         dup(TEXT)
+**
+** This SQL function simply makes a copy of its text argument.  But it
+** returns the result using a custom destructor, in order to provide
+** tests for the use of Mem.xDel() in the SQLite VDBE.
+*/
+static void SQLTester_dup_func(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  u64 *pOut;
+  char *z;
+  int n = sqlite3_value_bytes(argv[0]);
+  SQLTesterJni * const p = (SQLTesterJni *)sqlite3_user_data(context);
+  S3JniDeclLocal_env;
+
+  ++p->nDup;
+  if( n>0 && (pOut = s3jni_malloc( (n+16)&~7 ))!=0 ){
+    pOut[0] = 0x2bbf4b7c;
+    z = (char*)&pOut[1];
+    memcpy(z, sqlite3_value_text(argv[0]), n);
+    z[n] = 0;
+    sqlite3_result_text(context, z, n, SQLTester_dup_destructor);
+  }
+  return;
+}
+
+/*
+** Return the number of calls to the dup() SQL function since the
+** SQLTester context was opened or since the last dup_count() call.
+*/
+static void SQLTester_dup_count_func(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  SQLTesterJni * const p = (SQLTesterJni *)sqlite3_user_data(context);
+  sqlite3_result_int64(context, p->nDup);
+  p->nDup = 0;
+}
+
+/*
+** Return non-zero if string z matches glob pattern zGlob and zero if the
+** pattern does not match.
+**
+** To repeat:
+**
+**         zero == no match
+**     non-zero == match
+**
+** Globbing rules:
+**
+**      '*'       Matches any sequence of zero or more characters.
+**
+**      '?'       Matches exactly one character.
+**
+**     [...]      Matches one character from the enclosed list of
+**                characters.
+**
+**     [^...]     Matches one character not in the enclosed list.
+**
+**      '#'       Matches any sequence of one or more digits with an
+**                optional + or - sign in front, or a hexadecimal
+**                literal of the form 0x...
+*/
+static int SQLTester_strnotglob(const char *zGlob, const char *z){
+  int c, c2;
+  int invert;
+  int seen;
+
+  while( (c = (*(zGlob++)))!=0 ){
+    if( c=='*' ){
+      while( (c=(*(zGlob++))) == '*' || c=='?' ){
+        if( c=='?' && (*(z++))==0 ) return 0;
+      }
+      if( c==0 ){
+        return 1;
+      }else if( c=='[' ){
+        while( *z && SQLTester_strnotglob(zGlob-1,z)==0 ){
+          z++;
+        }
+        return (*z)!=0;
+      }
+      while( (c2 = (*(z++)))!=0 ){
+        while( c2!=c ){
+          c2 = *(z++);
+          if( c2==0 ) return 0;
+        }
+        if( SQLTester_strnotglob(zGlob,z) ) return 1;
+      }
+      return 0;
+    }else if( c=='?' ){
+      if( (*(z++))==0 ) return 0;
+    }else if( c=='[' ){
+      int prior_c = 0;
+      seen = 0;
+      invert = 0;
+      c = *(z++);
+      if( c==0 ) return 0;
+      c2 = *(zGlob++);
+      if( c2=='^' ){
+        invert = 1;
+        c2 = *(zGlob++);
+      }
+      if( c2==']' ){
+        if( c==']' ) seen = 1;
+        c2 = *(zGlob++);
+      }
+      while( c2 && c2!=']' ){
+        if( c2=='-' && zGlob[0]!=']' && zGlob[0]!=0 && prior_c>0 ){
+          c2 = *(zGlob++);
+          if( c>=prior_c && c<=c2 ) seen = 1;
+          prior_c = 0;
+        }else{
+          if( c==c2 ){
+            seen = 1;
+          }
+          prior_c = c2;
+        }
+        c2 = *(zGlob++);
+      }
+      if( c2==0 || (seen ^ invert)==0 ) return 0;
+    }else if( c=='#' ){
+      if( z[0]=='0'
+       && (z[1]=='x' || z[1]=='X')
+       && sqlite3Isxdigit(z[2])
+      ){
+        z += 3;
+        while( sqlite3Isxdigit(z[0]) ){ z++; }
+      }else{
+        if( (z[0]=='-' || z[0]=='+') && sqlite3Isdigit(z[1]) ) z++;
+        if( !sqlite3Isdigit(z[0]) ) return 0;
+        z++;
+        while( sqlite3Isdigit(z[0]) ){ z++; }
+      }
+    }else{
+      if( c!=(*(z++)) ) return 0;
+    }
+  }
+  return *z==0;
+}
+
+JNIEXPORT jint JNICALL
+Java_org_sqlite_jni_capi_SQLTester_strglob(
+  JniArgsEnvClass, jbyteArray baG, jbyteArray baT
+){
+  int rc = 0;
+  jbyte * const pG = s3jni_jbyteArray_bytes(baG);
+  jbyte * const pT = pG ? s3jni_jbyteArray_bytes(baT) : 0;
+
+  s3jni_oom_fatal(pT);
+  /* Note that we're relying on the byte arrays having been
+     NUL-terminated on the Java side. */
+  rc = !SQLTester_strnotglob((const char *)pG, (const char *)pT);
+  s3jni_jbyteArray_release(baG, pG);
+  s3jni_jbyteArray_release(baT, pT);
+  return rc;
+}
+
+
+static int SQLTester_auto_extension(sqlite3 *pDb, const char **pzErr,
+                                    const struct sqlite3_api_routines *ignored){
+  sqlite3_create_function(pDb, "dup", 1, SQLITE_UTF8, &SQLTester,
+                          SQLTester_dup_func, 0, 0);
+  sqlite3_create_function(pDb, "dup_count", 0, SQLITE_UTF8, &SQLTester,
+                          SQLTester_dup_count_func, 0, 0);
+  return 0;
+}
+
+JNIEXPORT void JNICALL
+Java_org_sqlite_jni_capi_SQLTester_installCustomExtensions(JniArgsEnvClass){
+  sqlite3_auto_extension( (void(*)(void))SQLTester_auto_extension );
+}
+
+#endif /* SQLITE_JNI_ENABLE_SQLTester */
+////////////////////////////////////////////////////////////////////////
+// End of SQLTester bindings. Start of lower-level bits.
+////////////////////////////////////////////////////////////////////////
+
+/*
+** Called during static init of the CApi class to set up global
+** state.
+*/
+JNIEXPORT void JNICALL
+Java_org_sqlite_jni_capi_CApi_init(JniArgsEnvClass){
+  jclass klazz;
+
+  memset(&S3JniGlobal, 0, sizeof(S3JniGlobal));
+  if( (*env)->GetJavaVM(env, &SJG.jvm) ){
+    (*env)->FatalError(env, "GetJavaVM() failure shouldn't be possible.");
+    return;
+  }
+
+  /* Grab references to various global classes and objects... */
+  SJG.g.cLong = S3JniRefGlobal((*env)->FindClass(env,"java/lang/Long"));
+  S3JniExceptionIsFatal("Error getting reference to Long class.");
+  SJG.g.ctorLong1 = (*env)->GetMethodID(env, SJG.g.cLong,
+                                         "<init>", "(J)V");
+  S3JniExceptionIsFatal("Error getting reference to Long constructor.");
+
+  SJG.g.cString = S3JniRefGlobal((*env)->FindClass(env,"java/lang/String"));
+  S3JniExceptionIsFatal("Error getting reference to String class.");
+  SJG.g.ctorStringBA =
+    (*env)->GetMethodID(env, SJG.g.cString,
+                        "<init>", "([BLjava/nio/charset/Charset;)V");
+  S3JniExceptionIsFatal("Error getting reference to String(byte[],Charset) ctor.");
+  SJG.g.stringGetBytes =
+    (*env)->GetMethodID(env, SJG.g.cString,
+                        "getBytes", "(Ljava/nio/charset/Charset;)[B");
+  S3JniExceptionIsFatal("Error getting reference to String.getBytes(Charset).");
+
+  { /* java.nio.charset.StandardCharsets.UTF_8 */
+    jfieldID fUtf8;
+    klazz = (*env)->FindClass(env,"java/nio/charset/StandardCharsets");
+    S3JniExceptionIsFatal("Error getting reference to StandardCharsets class.");
+    fUtf8 = (*env)->GetStaticFieldID(env, klazz, "UTF_8",
+                                     "Ljava/nio/charset/Charset;");
+    S3JniExceptionIsFatal("Error getting StandardCharsets.UTF_8 field.");
+    SJG.g.oCharsetUtf8 =
+      S3JniRefGlobal((*env)->GetStaticObjectField(env, klazz, fUtf8));
+    S3JniExceptionIsFatal("Error getting reference to StandardCharsets.UTF_8.");
+    S3JniUnrefLocal(klazz);
+  }
+
+#ifdef SQLITE_ENABLE_FTS5
+  klazz = (*env)->FindClass(env, "org/sqlite/jni/fts5/Fts5PhraseIter");
+  S3JniExceptionIsFatal("Error getting reference to org.sqlite.jni.fts5.Fts5PhraseIter.");
+  SJG.fts5.jPhraseIter.fidA = (*env)->GetFieldID(env, klazz, "a", "J");
+  S3JniExceptionIsFatal("Cannot get Fts5PhraseIter.a field.");
+  SJG.fts5.jPhraseIter.fidB = (*env)->GetFieldID(env, klazz, "b", "J");
+  S3JniExceptionIsFatal("Cannot get Fts5PhraseIter.b field.");
+  S3JniUnrefLocal(klazz);
+#endif
+
+  SJG.mutex = sqlite3_mutex_alloc(SQLITE_MUTEX_FAST);
+  s3jni_oom_fatal( SJG.mutex );
+  SJG.hook.mutex = sqlite3_mutex_alloc(SQLITE_MUTEX_FAST);
+  s3jni_oom_fatal( SJG.hook.mutex );
+  SJG.nph.mutex = sqlite3_mutex_alloc(SQLITE_MUTEX_FAST);
+  s3jni_oom_fatal( SJG.nph.mutex );
+  SJG.envCache.mutex = sqlite3_mutex_alloc(SQLITE_MUTEX_FAST);
+  s3jni_oom_fatal( SJG.envCache.mutex );
+  SJG.perDb.mutex = sqlite3_mutex_alloc(SQLITE_MUTEX_FAST);
+  s3jni_oom_fatal( SJG.perDb.mutex );
+  SJG.autoExt.mutex = sqlite3_mutex_alloc(SQLITE_MUTEX_FAST);
+  s3jni_oom_fatal( SJG.autoExt.mutex );
+
+#if S3JNI_METRICS_MUTEX
+  SJG.metrics.mutex = sqlite3_mutex_alloc(SQLITE_MUTEX_FAST);
+  s3jni_oom_fatal( SJG.metrics.mutex );
+#endif
+
+  {
+    /* Test whether this JVM supports direct memory access via
+       ByteBuffer. */
+    unsigned char buf[16] = {0};
+    jobject bb = (*env)->NewDirectByteBuffer(env, buf, 16);
+    if( bb ){
+      SJG.g.byteBuffer.klazz = S3JniRefGlobal((*env)->GetObjectClass(env, bb));
+      SJG.g.byteBuffer.midAlloc = (*env)->GetStaticMethodID(
+        env, SJG.g.byteBuffer.klazz, "allocateDirect", "(I)Ljava/nio/ByteBuffer;"
+      );
+      S3JniExceptionIsFatal("Error getting ByteBuffer.allocateDirect() method.");
+      SJG.g.byteBuffer.midLimit = (*env)->GetMethodID(
+        env, SJG.g.byteBuffer.klazz, "limit", "()I"
+      );
+      S3JniExceptionIsFatal("Error getting ByteBuffer.limit() method.");
+      S3JniUnrefLocal(bb);
+    }else{
+      SJG.g.byteBuffer.klazz = 0;
+      SJG.g.byteBuffer.midAlloc = 0;
+    }
+  }
+
+  sqlite3_shutdown()
+    /* So that it becomes legal for Java-level code to call
+    ** sqlite3_config(). */;
+}
diff --git a/ext/jni/src/c/sqlite3-jni.h b/ext/jni/src/c/sqlite3-jni.h
new file mode 100644
index 0000000000000000000000000000000000000000..082a202122c89b1884b16149f37e1c5877efcea1
--- /dev/null
+++ b/ext/jni/src/c/sqlite3-jni.h
@@ -0,0 +1,2461 @@
+/* DO NOT EDIT THIS FILE - it is machine generated */
+#include <jni.h>
+/* Header for class org_sqlite_jni_capi_CApi */
+
+#ifndef _Included_org_sqlite_jni_capi_CApi
+#define _Included_org_sqlite_jni_capi_CApi
+#ifdef __cplusplus
+extern "C" {
+#endif
+#undef org_sqlite_jni_capi_CApi_SQLITE_ACCESS_EXISTS
+#define org_sqlite_jni_capi_CApi_SQLITE_ACCESS_EXISTS 0L
+#undef org_sqlite_jni_capi_CApi_SQLITE_ACCESS_READWRITE
+#define org_sqlite_jni_capi_CApi_SQLITE_ACCESS_READWRITE 1L
+#undef org_sqlite_jni_capi_CApi_SQLITE_ACCESS_READ
+#define org_sqlite_jni_capi_CApi_SQLITE_ACCESS_READ 2L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DENY
+#define org_sqlite_jni_capi_CApi_SQLITE_DENY 1L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IGNORE
+#define org_sqlite_jni_capi_CApi_SQLITE_IGNORE 2L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CREATE_INDEX
+#define org_sqlite_jni_capi_CApi_SQLITE_CREATE_INDEX 1L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CREATE_TABLE
+#define org_sqlite_jni_capi_CApi_SQLITE_CREATE_TABLE 2L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CREATE_TEMP_INDEX
+#define org_sqlite_jni_capi_CApi_SQLITE_CREATE_TEMP_INDEX 3L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CREATE_TEMP_TABLE
+#define org_sqlite_jni_capi_CApi_SQLITE_CREATE_TEMP_TABLE 4L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CREATE_TEMP_TRIGGER
+#define org_sqlite_jni_capi_CApi_SQLITE_CREATE_TEMP_TRIGGER 5L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CREATE_TEMP_VIEW
+#define org_sqlite_jni_capi_CApi_SQLITE_CREATE_TEMP_VIEW 6L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CREATE_TRIGGER
+#define org_sqlite_jni_capi_CApi_SQLITE_CREATE_TRIGGER 7L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CREATE_VIEW
+#define org_sqlite_jni_capi_CApi_SQLITE_CREATE_VIEW 8L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DELETE
+#define org_sqlite_jni_capi_CApi_SQLITE_DELETE 9L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DROP_INDEX
+#define org_sqlite_jni_capi_CApi_SQLITE_DROP_INDEX 10L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DROP_TABLE
+#define org_sqlite_jni_capi_CApi_SQLITE_DROP_TABLE 11L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DROP_TEMP_INDEX
+#define org_sqlite_jni_capi_CApi_SQLITE_DROP_TEMP_INDEX 12L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DROP_TEMP_TABLE
+#define org_sqlite_jni_capi_CApi_SQLITE_DROP_TEMP_TABLE 13L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DROP_TEMP_TRIGGER
+#define org_sqlite_jni_capi_CApi_SQLITE_DROP_TEMP_TRIGGER 14L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DROP_TEMP_VIEW
+#define org_sqlite_jni_capi_CApi_SQLITE_DROP_TEMP_VIEW 15L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DROP_TRIGGER
+#define org_sqlite_jni_capi_CApi_SQLITE_DROP_TRIGGER 16L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DROP_VIEW
+#define org_sqlite_jni_capi_CApi_SQLITE_DROP_VIEW 17L
+#undef org_sqlite_jni_capi_CApi_SQLITE_INSERT
+#define org_sqlite_jni_capi_CApi_SQLITE_INSERT 18L
+#undef org_sqlite_jni_capi_CApi_SQLITE_PRAGMA
+#define org_sqlite_jni_capi_CApi_SQLITE_PRAGMA 19L
+#undef org_sqlite_jni_capi_CApi_SQLITE_READ
+#define org_sqlite_jni_capi_CApi_SQLITE_READ 20L
+#undef org_sqlite_jni_capi_CApi_SQLITE_SELECT
+#define org_sqlite_jni_capi_CApi_SQLITE_SELECT 21L
+#undef org_sqlite_jni_capi_CApi_SQLITE_TRANSACTION
+#define org_sqlite_jni_capi_CApi_SQLITE_TRANSACTION 22L
+#undef org_sqlite_jni_capi_CApi_SQLITE_UPDATE
+#define org_sqlite_jni_capi_CApi_SQLITE_UPDATE 23L
+#undef org_sqlite_jni_capi_CApi_SQLITE_ATTACH
+#define org_sqlite_jni_capi_CApi_SQLITE_ATTACH 24L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DETACH
+#define org_sqlite_jni_capi_CApi_SQLITE_DETACH 25L
+#undef org_sqlite_jni_capi_CApi_SQLITE_ALTER_TABLE
+#define org_sqlite_jni_capi_CApi_SQLITE_ALTER_TABLE 26L
+#undef org_sqlite_jni_capi_CApi_SQLITE_REINDEX
+#define org_sqlite_jni_capi_CApi_SQLITE_REINDEX 27L
+#undef org_sqlite_jni_capi_CApi_SQLITE_ANALYZE
+#define org_sqlite_jni_capi_CApi_SQLITE_ANALYZE 28L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CREATE_VTABLE
+#define org_sqlite_jni_capi_CApi_SQLITE_CREATE_VTABLE 29L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DROP_VTABLE
+#define org_sqlite_jni_capi_CApi_SQLITE_DROP_VTABLE 30L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FUNCTION
+#define org_sqlite_jni_capi_CApi_SQLITE_FUNCTION 31L
+#undef org_sqlite_jni_capi_CApi_SQLITE_SAVEPOINT
+#define org_sqlite_jni_capi_CApi_SQLITE_SAVEPOINT 32L
+#undef org_sqlite_jni_capi_CApi_SQLITE_RECURSIVE
+#define org_sqlite_jni_capi_CApi_SQLITE_RECURSIVE 33L
+#undef org_sqlite_jni_capi_CApi_SQLITE_STATIC
+#define org_sqlite_jni_capi_CApi_SQLITE_STATIC 0LL
+#undef org_sqlite_jni_capi_CApi_SQLITE_TRANSIENT
+#define org_sqlite_jni_capi_CApi_SQLITE_TRANSIENT -1LL
+#undef org_sqlite_jni_capi_CApi_SQLITE_CHANGESETSTART_INVERT
+#define org_sqlite_jni_capi_CApi_SQLITE_CHANGESETSTART_INVERT 2L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CHANGESETAPPLY_NOSAVEPOINT
+#define org_sqlite_jni_capi_CApi_SQLITE_CHANGESETAPPLY_NOSAVEPOINT 1L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CHANGESETAPPLY_INVERT
+#define org_sqlite_jni_capi_CApi_SQLITE_CHANGESETAPPLY_INVERT 2L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CHANGESETAPPLY_IGNORENOOP
+#define org_sqlite_jni_capi_CApi_SQLITE_CHANGESETAPPLY_IGNORENOOP 4L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CHANGESET_DATA
+#define org_sqlite_jni_capi_CApi_SQLITE_CHANGESET_DATA 1L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CHANGESET_NOTFOUND
+#define org_sqlite_jni_capi_CApi_SQLITE_CHANGESET_NOTFOUND 2L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CHANGESET_CONFLICT
+#define org_sqlite_jni_capi_CApi_SQLITE_CHANGESET_CONFLICT 3L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CHANGESET_CONSTRAINT
+#define org_sqlite_jni_capi_CApi_SQLITE_CHANGESET_CONSTRAINT 4L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CHANGESET_FOREIGN_KEY
+#define org_sqlite_jni_capi_CApi_SQLITE_CHANGESET_FOREIGN_KEY 5L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CHANGESET_OMIT
+#define org_sqlite_jni_capi_CApi_SQLITE_CHANGESET_OMIT 0L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CHANGESET_REPLACE
+#define org_sqlite_jni_capi_CApi_SQLITE_CHANGESET_REPLACE 1L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CHANGESET_ABORT
+#define org_sqlite_jni_capi_CApi_SQLITE_CHANGESET_ABORT 2L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CONFIG_SINGLETHREAD
+#define org_sqlite_jni_capi_CApi_SQLITE_CONFIG_SINGLETHREAD 1L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CONFIG_MULTITHREAD
+#define org_sqlite_jni_capi_CApi_SQLITE_CONFIG_MULTITHREAD 2L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CONFIG_SERIALIZED
+#define org_sqlite_jni_capi_CApi_SQLITE_CONFIG_SERIALIZED 3L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CONFIG_MALLOC
+#define org_sqlite_jni_capi_CApi_SQLITE_CONFIG_MALLOC 4L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CONFIG_GETMALLOC
+#define org_sqlite_jni_capi_CApi_SQLITE_CONFIG_GETMALLOC 5L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CONFIG_SCRATCH
+#define org_sqlite_jni_capi_CApi_SQLITE_CONFIG_SCRATCH 6L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CONFIG_PAGECACHE
+#define org_sqlite_jni_capi_CApi_SQLITE_CONFIG_PAGECACHE 7L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CONFIG_HEAP
+#define org_sqlite_jni_capi_CApi_SQLITE_CONFIG_HEAP 8L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CONFIG_MEMSTATUS
+#define org_sqlite_jni_capi_CApi_SQLITE_CONFIG_MEMSTATUS 9L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CONFIG_MUTEX
+#define org_sqlite_jni_capi_CApi_SQLITE_CONFIG_MUTEX 10L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CONFIG_GETMUTEX
+#define org_sqlite_jni_capi_CApi_SQLITE_CONFIG_GETMUTEX 11L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CONFIG_LOOKASIDE
+#define org_sqlite_jni_capi_CApi_SQLITE_CONFIG_LOOKASIDE 13L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CONFIG_PCACHE
+#define org_sqlite_jni_capi_CApi_SQLITE_CONFIG_PCACHE 14L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CONFIG_GETPCACHE
+#define org_sqlite_jni_capi_CApi_SQLITE_CONFIG_GETPCACHE 15L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CONFIG_LOG
+#define org_sqlite_jni_capi_CApi_SQLITE_CONFIG_LOG 16L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CONFIG_URI
+#define org_sqlite_jni_capi_CApi_SQLITE_CONFIG_URI 17L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CONFIG_PCACHE2
+#define org_sqlite_jni_capi_CApi_SQLITE_CONFIG_PCACHE2 18L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CONFIG_GETPCACHE2
+#define org_sqlite_jni_capi_CApi_SQLITE_CONFIG_GETPCACHE2 19L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CONFIG_COVERING_INDEX_SCAN
+#define org_sqlite_jni_capi_CApi_SQLITE_CONFIG_COVERING_INDEX_SCAN 20L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CONFIG_SQLLOG
+#define org_sqlite_jni_capi_CApi_SQLITE_CONFIG_SQLLOG 21L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CONFIG_MMAP_SIZE
+#define org_sqlite_jni_capi_CApi_SQLITE_CONFIG_MMAP_SIZE 22L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CONFIG_WIN32_HEAPSIZE
+#define org_sqlite_jni_capi_CApi_SQLITE_CONFIG_WIN32_HEAPSIZE 23L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CONFIG_PCACHE_HDRSZ
+#define org_sqlite_jni_capi_CApi_SQLITE_CONFIG_PCACHE_HDRSZ 24L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CONFIG_PMASZ
+#define org_sqlite_jni_capi_CApi_SQLITE_CONFIG_PMASZ 25L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CONFIG_STMTJRNL_SPILL
+#define org_sqlite_jni_capi_CApi_SQLITE_CONFIG_STMTJRNL_SPILL 26L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CONFIG_SMALL_MALLOC
+#define org_sqlite_jni_capi_CApi_SQLITE_CONFIG_SMALL_MALLOC 27L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CONFIG_SORTERREF_SIZE
+#define org_sqlite_jni_capi_CApi_SQLITE_CONFIG_SORTERREF_SIZE 28L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CONFIG_MEMDB_MAXSIZE
+#define org_sqlite_jni_capi_CApi_SQLITE_CONFIG_MEMDB_MAXSIZE 29L
+#undef org_sqlite_jni_capi_CApi_SQLITE_INTEGER
+#define org_sqlite_jni_capi_CApi_SQLITE_INTEGER 1L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FLOAT
+#define org_sqlite_jni_capi_CApi_SQLITE_FLOAT 2L
+#undef org_sqlite_jni_capi_CApi_SQLITE_TEXT
+#define org_sqlite_jni_capi_CApi_SQLITE_TEXT 3L
+#undef org_sqlite_jni_capi_CApi_SQLITE_BLOB
+#define org_sqlite_jni_capi_CApi_SQLITE_BLOB 4L
+#undef org_sqlite_jni_capi_CApi_SQLITE_NULL
+#define org_sqlite_jni_capi_CApi_SQLITE_NULL 5L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DBCONFIG_MAINDBNAME
+#define org_sqlite_jni_capi_CApi_SQLITE_DBCONFIG_MAINDBNAME 1000L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DBCONFIG_LOOKASIDE
+#define org_sqlite_jni_capi_CApi_SQLITE_DBCONFIG_LOOKASIDE 1001L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DBCONFIG_ENABLE_FKEY
+#define org_sqlite_jni_capi_CApi_SQLITE_DBCONFIG_ENABLE_FKEY 1002L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DBCONFIG_ENABLE_TRIGGER
+#define org_sqlite_jni_capi_CApi_SQLITE_DBCONFIG_ENABLE_TRIGGER 1003L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER
+#define org_sqlite_jni_capi_CApi_SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER 1004L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION
+#define org_sqlite_jni_capi_CApi_SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION 1005L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE
+#define org_sqlite_jni_capi_CApi_SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE 1006L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DBCONFIG_ENABLE_QPSG
+#define org_sqlite_jni_capi_CApi_SQLITE_DBCONFIG_ENABLE_QPSG 1007L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DBCONFIG_TRIGGER_EQP
+#define org_sqlite_jni_capi_CApi_SQLITE_DBCONFIG_TRIGGER_EQP 1008L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DBCONFIG_RESET_DATABASE
+#define org_sqlite_jni_capi_CApi_SQLITE_DBCONFIG_RESET_DATABASE 1009L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DBCONFIG_DEFENSIVE
+#define org_sqlite_jni_capi_CApi_SQLITE_DBCONFIG_DEFENSIVE 1010L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DBCONFIG_WRITABLE_SCHEMA
+#define org_sqlite_jni_capi_CApi_SQLITE_DBCONFIG_WRITABLE_SCHEMA 1011L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DBCONFIG_LEGACY_ALTER_TABLE
+#define org_sqlite_jni_capi_CApi_SQLITE_DBCONFIG_LEGACY_ALTER_TABLE 1012L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DBCONFIG_DQS_DML
+#define org_sqlite_jni_capi_CApi_SQLITE_DBCONFIG_DQS_DML 1013L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DBCONFIG_DQS_DDL
+#define org_sqlite_jni_capi_CApi_SQLITE_DBCONFIG_DQS_DDL 1014L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DBCONFIG_ENABLE_VIEW
+#define org_sqlite_jni_capi_CApi_SQLITE_DBCONFIG_ENABLE_VIEW 1015L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DBCONFIG_LEGACY_FILE_FORMAT
+#define org_sqlite_jni_capi_CApi_SQLITE_DBCONFIG_LEGACY_FILE_FORMAT 1016L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DBCONFIG_TRUSTED_SCHEMA
+#define org_sqlite_jni_capi_CApi_SQLITE_DBCONFIG_TRUSTED_SCHEMA 1017L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DBCONFIG_STMT_SCANSTATUS
+#define org_sqlite_jni_capi_CApi_SQLITE_DBCONFIG_STMT_SCANSTATUS 1018L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DBCONFIG_REVERSE_SCANORDER
+#define org_sqlite_jni_capi_CApi_SQLITE_DBCONFIG_REVERSE_SCANORDER 1019L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DBCONFIG_MAX
+#define org_sqlite_jni_capi_CApi_SQLITE_DBCONFIG_MAX 1019L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DBSTATUS_LOOKASIDE_USED
+#define org_sqlite_jni_capi_CApi_SQLITE_DBSTATUS_LOOKASIDE_USED 0L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DBSTATUS_CACHE_USED
+#define org_sqlite_jni_capi_CApi_SQLITE_DBSTATUS_CACHE_USED 1L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DBSTATUS_SCHEMA_USED
+#define org_sqlite_jni_capi_CApi_SQLITE_DBSTATUS_SCHEMA_USED 2L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DBSTATUS_STMT_USED
+#define org_sqlite_jni_capi_CApi_SQLITE_DBSTATUS_STMT_USED 3L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DBSTATUS_LOOKASIDE_HIT
+#define org_sqlite_jni_capi_CApi_SQLITE_DBSTATUS_LOOKASIDE_HIT 4L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DBSTATUS_LOOKASIDE_MISS_SIZE
+#define org_sqlite_jni_capi_CApi_SQLITE_DBSTATUS_LOOKASIDE_MISS_SIZE 5L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DBSTATUS_LOOKASIDE_MISS_FULL
+#define org_sqlite_jni_capi_CApi_SQLITE_DBSTATUS_LOOKASIDE_MISS_FULL 6L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DBSTATUS_CACHE_HIT
+#define org_sqlite_jni_capi_CApi_SQLITE_DBSTATUS_CACHE_HIT 7L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DBSTATUS_CACHE_MISS
+#define org_sqlite_jni_capi_CApi_SQLITE_DBSTATUS_CACHE_MISS 8L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DBSTATUS_CACHE_WRITE
+#define org_sqlite_jni_capi_CApi_SQLITE_DBSTATUS_CACHE_WRITE 9L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DBSTATUS_DEFERRED_FKS
+#define org_sqlite_jni_capi_CApi_SQLITE_DBSTATUS_DEFERRED_FKS 10L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DBSTATUS_CACHE_USED_SHARED
+#define org_sqlite_jni_capi_CApi_SQLITE_DBSTATUS_CACHE_USED_SHARED 11L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DBSTATUS_CACHE_SPILL
+#define org_sqlite_jni_capi_CApi_SQLITE_DBSTATUS_CACHE_SPILL 12L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DBSTATUS_MAX
+#define org_sqlite_jni_capi_CApi_SQLITE_DBSTATUS_MAX 12L
+#undef org_sqlite_jni_capi_CApi_SQLITE_UTF8
+#define org_sqlite_jni_capi_CApi_SQLITE_UTF8 1L
+#undef org_sqlite_jni_capi_CApi_SQLITE_UTF16LE
+#define org_sqlite_jni_capi_CApi_SQLITE_UTF16LE 2L
+#undef org_sqlite_jni_capi_CApi_SQLITE_UTF16BE
+#define org_sqlite_jni_capi_CApi_SQLITE_UTF16BE 3L
+#undef org_sqlite_jni_capi_CApi_SQLITE_UTF16
+#define org_sqlite_jni_capi_CApi_SQLITE_UTF16 4L
+#undef org_sqlite_jni_capi_CApi_SQLITE_UTF16_ALIGNED
+#define org_sqlite_jni_capi_CApi_SQLITE_UTF16_ALIGNED 8L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FCNTL_LOCKSTATE
+#define org_sqlite_jni_capi_CApi_SQLITE_FCNTL_LOCKSTATE 1L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FCNTL_GET_LOCKPROXYFILE
+#define org_sqlite_jni_capi_CApi_SQLITE_FCNTL_GET_LOCKPROXYFILE 2L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FCNTL_SET_LOCKPROXYFILE
+#define org_sqlite_jni_capi_CApi_SQLITE_FCNTL_SET_LOCKPROXYFILE 3L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FCNTL_LAST_ERRNO
+#define org_sqlite_jni_capi_CApi_SQLITE_FCNTL_LAST_ERRNO 4L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FCNTL_SIZE_HINT
+#define org_sqlite_jni_capi_CApi_SQLITE_FCNTL_SIZE_HINT 5L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FCNTL_CHUNK_SIZE
+#define org_sqlite_jni_capi_CApi_SQLITE_FCNTL_CHUNK_SIZE 6L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FCNTL_FILE_POINTER
+#define org_sqlite_jni_capi_CApi_SQLITE_FCNTL_FILE_POINTER 7L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FCNTL_SYNC_OMITTED
+#define org_sqlite_jni_capi_CApi_SQLITE_FCNTL_SYNC_OMITTED 8L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FCNTL_WIN32_AV_RETRY
+#define org_sqlite_jni_capi_CApi_SQLITE_FCNTL_WIN32_AV_RETRY 9L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FCNTL_PERSIST_WAL
+#define org_sqlite_jni_capi_CApi_SQLITE_FCNTL_PERSIST_WAL 10L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FCNTL_OVERWRITE
+#define org_sqlite_jni_capi_CApi_SQLITE_FCNTL_OVERWRITE 11L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FCNTL_VFSNAME
+#define org_sqlite_jni_capi_CApi_SQLITE_FCNTL_VFSNAME 12L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FCNTL_POWERSAFE_OVERWRITE
+#define org_sqlite_jni_capi_CApi_SQLITE_FCNTL_POWERSAFE_OVERWRITE 13L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FCNTL_PRAGMA
+#define org_sqlite_jni_capi_CApi_SQLITE_FCNTL_PRAGMA 14L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FCNTL_BUSYHANDLER
+#define org_sqlite_jni_capi_CApi_SQLITE_FCNTL_BUSYHANDLER 15L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FCNTL_TEMPFILENAME
+#define org_sqlite_jni_capi_CApi_SQLITE_FCNTL_TEMPFILENAME 16L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FCNTL_MMAP_SIZE
+#define org_sqlite_jni_capi_CApi_SQLITE_FCNTL_MMAP_SIZE 18L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FCNTL_TRACE
+#define org_sqlite_jni_capi_CApi_SQLITE_FCNTL_TRACE 19L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FCNTL_HAS_MOVED
+#define org_sqlite_jni_capi_CApi_SQLITE_FCNTL_HAS_MOVED 20L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FCNTL_SYNC
+#define org_sqlite_jni_capi_CApi_SQLITE_FCNTL_SYNC 21L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FCNTL_COMMIT_PHASETWO
+#define org_sqlite_jni_capi_CApi_SQLITE_FCNTL_COMMIT_PHASETWO 22L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FCNTL_WIN32_SET_HANDLE
+#define org_sqlite_jni_capi_CApi_SQLITE_FCNTL_WIN32_SET_HANDLE 23L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FCNTL_WAL_BLOCK
+#define org_sqlite_jni_capi_CApi_SQLITE_FCNTL_WAL_BLOCK 24L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FCNTL_ZIPVFS
+#define org_sqlite_jni_capi_CApi_SQLITE_FCNTL_ZIPVFS 25L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FCNTL_RBU
+#define org_sqlite_jni_capi_CApi_SQLITE_FCNTL_RBU 26L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FCNTL_VFS_POINTER
+#define org_sqlite_jni_capi_CApi_SQLITE_FCNTL_VFS_POINTER 27L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FCNTL_JOURNAL_POINTER
+#define org_sqlite_jni_capi_CApi_SQLITE_FCNTL_JOURNAL_POINTER 28L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FCNTL_WIN32_GET_HANDLE
+#define org_sqlite_jni_capi_CApi_SQLITE_FCNTL_WIN32_GET_HANDLE 29L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FCNTL_PDB
+#define org_sqlite_jni_capi_CApi_SQLITE_FCNTL_PDB 30L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FCNTL_BEGIN_ATOMIC_WRITE
+#define org_sqlite_jni_capi_CApi_SQLITE_FCNTL_BEGIN_ATOMIC_WRITE 31L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FCNTL_COMMIT_ATOMIC_WRITE
+#define org_sqlite_jni_capi_CApi_SQLITE_FCNTL_COMMIT_ATOMIC_WRITE 32L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FCNTL_ROLLBACK_ATOMIC_WRITE
+#define org_sqlite_jni_capi_CApi_SQLITE_FCNTL_ROLLBACK_ATOMIC_WRITE 33L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FCNTL_LOCK_TIMEOUT
+#define org_sqlite_jni_capi_CApi_SQLITE_FCNTL_LOCK_TIMEOUT 34L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FCNTL_DATA_VERSION
+#define org_sqlite_jni_capi_CApi_SQLITE_FCNTL_DATA_VERSION 35L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FCNTL_SIZE_LIMIT
+#define org_sqlite_jni_capi_CApi_SQLITE_FCNTL_SIZE_LIMIT 36L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FCNTL_CKPT_DONE
+#define org_sqlite_jni_capi_CApi_SQLITE_FCNTL_CKPT_DONE 37L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FCNTL_RESERVE_BYTES
+#define org_sqlite_jni_capi_CApi_SQLITE_FCNTL_RESERVE_BYTES 38L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FCNTL_CKPT_START
+#define org_sqlite_jni_capi_CApi_SQLITE_FCNTL_CKPT_START 39L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FCNTL_EXTERNAL_READER
+#define org_sqlite_jni_capi_CApi_SQLITE_FCNTL_EXTERNAL_READER 40L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FCNTL_CKSM_FILE
+#define org_sqlite_jni_capi_CApi_SQLITE_FCNTL_CKSM_FILE 41L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FCNTL_RESET_CACHE
+#define org_sqlite_jni_capi_CApi_SQLITE_FCNTL_RESET_CACHE 42L
+#undef org_sqlite_jni_capi_CApi_SQLITE_LOCK_NONE
+#define org_sqlite_jni_capi_CApi_SQLITE_LOCK_NONE 0L
+#undef org_sqlite_jni_capi_CApi_SQLITE_LOCK_SHARED
+#define org_sqlite_jni_capi_CApi_SQLITE_LOCK_SHARED 1L
+#undef org_sqlite_jni_capi_CApi_SQLITE_LOCK_RESERVED
+#define org_sqlite_jni_capi_CApi_SQLITE_LOCK_RESERVED 2L
+#undef org_sqlite_jni_capi_CApi_SQLITE_LOCK_PENDING
+#define org_sqlite_jni_capi_CApi_SQLITE_LOCK_PENDING 3L
+#undef org_sqlite_jni_capi_CApi_SQLITE_LOCK_EXCLUSIVE
+#define org_sqlite_jni_capi_CApi_SQLITE_LOCK_EXCLUSIVE 4L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOCAP_ATOMIC
+#define org_sqlite_jni_capi_CApi_SQLITE_IOCAP_ATOMIC 1L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOCAP_ATOMIC512
+#define org_sqlite_jni_capi_CApi_SQLITE_IOCAP_ATOMIC512 2L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOCAP_ATOMIC1K
+#define org_sqlite_jni_capi_CApi_SQLITE_IOCAP_ATOMIC1K 4L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOCAP_ATOMIC2K
+#define org_sqlite_jni_capi_CApi_SQLITE_IOCAP_ATOMIC2K 8L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOCAP_ATOMIC4K
+#define org_sqlite_jni_capi_CApi_SQLITE_IOCAP_ATOMIC4K 16L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOCAP_ATOMIC8K
+#define org_sqlite_jni_capi_CApi_SQLITE_IOCAP_ATOMIC8K 32L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOCAP_ATOMIC16K
+#define org_sqlite_jni_capi_CApi_SQLITE_IOCAP_ATOMIC16K 64L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOCAP_ATOMIC32K
+#define org_sqlite_jni_capi_CApi_SQLITE_IOCAP_ATOMIC32K 128L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOCAP_ATOMIC64K
+#define org_sqlite_jni_capi_CApi_SQLITE_IOCAP_ATOMIC64K 256L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOCAP_SAFE_APPEND
+#define org_sqlite_jni_capi_CApi_SQLITE_IOCAP_SAFE_APPEND 512L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOCAP_SEQUENTIAL
+#define org_sqlite_jni_capi_CApi_SQLITE_IOCAP_SEQUENTIAL 1024L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOCAP_UNDELETABLE_WHEN_OPEN
+#define org_sqlite_jni_capi_CApi_SQLITE_IOCAP_UNDELETABLE_WHEN_OPEN 2048L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOCAP_POWERSAFE_OVERWRITE
+#define org_sqlite_jni_capi_CApi_SQLITE_IOCAP_POWERSAFE_OVERWRITE 4096L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOCAP_IMMUTABLE
+#define org_sqlite_jni_capi_CApi_SQLITE_IOCAP_IMMUTABLE 8192L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOCAP_BATCH_ATOMIC
+#define org_sqlite_jni_capi_CApi_SQLITE_IOCAP_BATCH_ATOMIC 16384L
+#undef org_sqlite_jni_capi_CApi_SQLITE_LIMIT_LENGTH
+#define org_sqlite_jni_capi_CApi_SQLITE_LIMIT_LENGTH 0L
+#undef org_sqlite_jni_capi_CApi_SQLITE_LIMIT_SQL_LENGTH
+#define org_sqlite_jni_capi_CApi_SQLITE_LIMIT_SQL_LENGTH 1L
+#undef org_sqlite_jni_capi_CApi_SQLITE_LIMIT_COLUMN
+#define org_sqlite_jni_capi_CApi_SQLITE_LIMIT_COLUMN 2L
+#undef org_sqlite_jni_capi_CApi_SQLITE_LIMIT_EXPR_DEPTH
+#define org_sqlite_jni_capi_CApi_SQLITE_LIMIT_EXPR_DEPTH 3L
+#undef org_sqlite_jni_capi_CApi_SQLITE_LIMIT_COMPOUND_SELECT
+#define org_sqlite_jni_capi_CApi_SQLITE_LIMIT_COMPOUND_SELECT 4L
+#undef org_sqlite_jni_capi_CApi_SQLITE_LIMIT_VDBE_OP
+#define org_sqlite_jni_capi_CApi_SQLITE_LIMIT_VDBE_OP 5L
+#undef org_sqlite_jni_capi_CApi_SQLITE_LIMIT_FUNCTION_ARG
+#define org_sqlite_jni_capi_CApi_SQLITE_LIMIT_FUNCTION_ARG 6L
+#undef org_sqlite_jni_capi_CApi_SQLITE_LIMIT_ATTACHED
+#define org_sqlite_jni_capi_CApi_SQLITE_LIMIT_ATTACHED 7L
+#undef org_sqlite_jni_capi_CApi_SQLITE_LIMIT_LIKE_PATTERN_LENGTH
+#define org_sqlite_jni_capi_CApi_SQLITE_LIMIT_LIKE_PATTERN_LENGTH 8L
+#undef org_sqlite_jni_capi_CApi_SQLITE_LIMIT_VARIABLE_NUMBER
+#define org_sqlite_jni_capi_CApi_SQLITE_LIMIT_VARIABLE_NUMBER 9L
+#undef org_sqlite_jni_capi_CApi_SQLITE_LIMIT_TRIGGER_DEPTH
+#define org_sqlite_jni_capi_CApi_SQLITE_LIMIT_TRIGGER_DEPTH 10L
+#undef org_sqlite_jni_capi_CApi_SQLITE_LIMIT_WORKER_THREADS
+#define org_sqlite_jni_capi_CApi_SQLITE_LIMIT_WORKER_THREADS 11L
+#undef org_sqlite_jni_capi_CApi_SQLITE_OPEN_READONLY
+#define org_sqlite_jni_capi_CApi_SQLITE_OPEN_READONLY 1L
+#undef org_sqlite_jni_capi_CApi_SQLITE_OPEN_READWRITE
+#define org_sqlite_jni_capi_CApi_SQLITE_OPEN_READWRITE 2L
+#undef org_sqlite_jni_capi_CApi_SQLITE_OPEN_CREATE
+#define org_sqlite_jni_capi_CApi_SQLITE_OPEN_CREATE 4L
+#undef org_sqlite_jni_capi_CApi_SQLITE_OPEN_URI
+#define org_sqlite_jni_capi_CApi_SQLITE_OPEN_URI 64L
+#undef org_sqlite_jni_capi_CApi_SQLITE_OPEN_MEMORY
+#define org_sqlite_jni_capi_CApi_SQLITE_OPEN_MEMORY 128L
+#undef org_sqlite_jni_capi_CApi_SQLITE_OPEN_NOMUTEX
+#define org_sqlite_jni_capi_CApi_SQLITE_OPEN_NOMUTEX 32768L
+#undef org_sqlite_jni_capi_CApi_SQLITE_OPEN_FULLMUTEX
+#define org_sqlite_jni_capi_CApi_SQLITE_OPEN_FULLMUTEX 65536L
+#undef org_sqlite_jni_capi_CApi_SQLITE_OPEN_SHAREDCACHE
+#define org_sqlite_jni_capi_CApi_SQLITE_OPEN_SHAREDCACHE 131072L
+#undef org_sqlite_jni_capi_CApi_SQLITE_OPEN_PRIVATECACHE
+#define org_sqlite_jni_capi_CApi_SQLITE_OPEN_PRIVATECACHE 262144L
+#undef org_sqlite_jni_capi_CApi_SQLITE_OPEN_NOFOLLOW
+#define org_sqlite_jni_capi_CApi_SQLITE_OPEN_NOFOLLOW 16777216L
+#undef org_sqlite_jni_capi_CApi_SQLITE_OPEN_EXRESCODE
+#define org_sqlite_jni_capi_CApi_SQLITE_OPEN_EXRESCODE 33554432L
+#undef org_sqlite_jni_capi_CApi_SQLITE_PREPARE_PERSISTENT
+#define org_sqlite_jni_capi_CApi_SQLITE_PREPARE_PERSISTENT 1L
+#undef org_sqlite_jni_capi_CApi_SQLITE_PREPARE_NO_VTAB
+#define org_sqlite_jni_capi_CApi_SQLITE_PREPARE_NO_VTAB 4L
+#undef org_sqlite_jni_capi_CApi_SQLITE_OK
+#define org_sqlite_jni_capi_CApi_SQLITE_OK 0L
+#undef org_sqlite_jni_capi_CApi_SQLITE_ERROR
+#define org_sqlite_jni_capi_CApi_SQLITE_ERROR 1L
+#undef org_sqlite_jni_capi_CApi_SQLITE_INTERNAL
+#define org_sqlite_jni_capi_CApi_SQLITE_INTERNAL 2L
+#undef org_sqlite_jni_capi_CApi_SQLITE_PERM
+#define org_sqlite_jni_capi_CApi_SQLITE_PERM 3L
+#undef org_sqlite_jni_capi_CApi_SQLITE_ABORT
+#define org_sqlite_jni_capi_CApi_SQLITE_ABORT 4L
+#undef org_sqlite_jni_capi_CApi_SQLITE_BUSY
+#define org_sqlite_jni_capi_CApi_SQLITE_BUSY 5L
+#undef org_sqlite_jni_capi_CApi_SQLITE_LOCKED
+#define org_sqlite_jni_capi_CApi_SQLITE_LOCKED 6L
+#undef org_sqlite_jni_capi_CApi_SQLITE_NOMEM
+#define org_sqlite_jni_capi_CApi_SQLITE_NOMEM 7L
+#undef org_sqlite_jni_capi_CApi_SQLITE_READONLY
+#define org_sqlite_jni_capi_CApi_SQLITE_READONLY 8L
+#undef org_sqlite_jni_capi_CApi_SQLITE_INTERRUPT
+#define org_sqlite_jni_capi_CApi_SQLITE_INTERRUPT 9L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOERR
+#define org_sqlite_jni_capi_CApi_SQLITE_IOERR 10L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CORRUPT
+#define org_sqlite_jni_capi_CApi_SQLITE_CORRUPT 11L
+#undef org_sqlite_jni_capi_CApi_SQLITE_NOTFOUND
+#define org_sqlite_jni_capi_CApi_SQLITE_NOTFOUND 12L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FULL
+#define org_sqlite_jni_capi_CApi_SQLITE_FULL 13L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CANTOPEN
+#define org_sqlite_jni_capi_CApi_SQLITE_CANTOPEN 14L
+#undef org_sqlite_jni_capi_CApi_SQLITE_PROTOCOL
+#define org_sqlite_jni_capi_CApi_SQLITE_PROTOCOL 15L
+#undef org_sqlite_jni_capi_CApi_SQLITE_EMPTY
+#define org_sqlite_jni_capi_CApi_SQLITE_EMPTY 16L
+#undef org_sqlite_jni_capi_CApi_SQLITE_SCHEMA
+#define org_sqlite_jni_capi_CApi_SQLITE_SCHEMA 17L
+#undef org_sqlite_jni_capi_CApi_SQLITE_TOOBIG
+#define org_sqlite_jni_capi_CApi_SQLITE_TOOBIG 18L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CONSTRAINT
+#define org_sqlite_jni_capi_CApi_SQLITE_CONSTRAINT 19L
+#undef org_sqlite_jni_capi_CApi_SQLITE_MISMATCH
+#define org_sqlite_jni_capi_CApi_SQLITE_MISMATCH 20L
+#undef org_sqlite_jni_capi_CApi_SQLITE_MISUSE
+#define org_sqlite_jni_capi_CApi_SQLITE_MISUSE 21L
+#undef org_sqlite_jni_capi_CApi_SQLITE_NOLFS
+#define org_sqlite_jni_capi_CApi_SQLITE_NOLFS 22L
+#undef org_sqlite_jni_capi_CApi_SQLITE_AUTH
+#define org_sqlite_jni_capi_CApi_SQLITE_AUTH 23L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FORMAT
+#define org_sqlite_jni_capi_CApi_SQLITE_FORMAT 24L
+#undef org_sqlite_jni_capi_CApi_SQLITE_RANGE
+#define org_sqlite_jni_capi_CApi_SQLITE_RANGE 25L
+#undef org_sqlite_jni_capi_CApi_SQLITE_NOTADB
+#define org_sqlite_jni_capi_CApi_SQLITE_NOTADB 26L
+#undef org_sqlite_jni_capi_CApi_SQLITE_NOTICE
+#define org_sqlite_jni_capi_CApi_SQLITE_NOTICE 27L
+#undef org_sqlite_jni_capi_CApi_SQLITE_WARNING
+#define org_sqlite_jni_capi_CApi_SQLITE_WARNING 28L
+#undef org_sqlite_jni_capi_CApi_SQLITE_ROW
+#define org_sqlite_jni_capi_CApi_SQLITE_ROW 100L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DONE
+#define org_sqlite_jni_capi_CApi_SQLITE_DONE 101L
+#undef org_sqlite_jni_capi_CApi_SQLITE_ERROR_MISSING_COLLSEQ
+#define org_sqlite_jni_capi_CApi_SQLITE_ERROR_MISSING_COLLSEQ 257L
+#undef org_sqlite_jni_capi_CApi_SQLITE_ERROR_RETRY
+#define org_sqlite_jni_capi_CApi_SQLITE_ERROR_RETRY 513L
+#undef org_sqlite_jni_capi_CApi_SQLITE_ERROR_SNAPSHOT
+#define org_sqlite_jni_capi_CApi_SQLITE_ERROR_SNAPSHOT 769L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOERR_READ
+#define org_sqlite_jni_capi_CApi_SQLITE_IOERR_READ 266L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOERR_SHORT_READ
+#define org_sqlite_jni_capi_CApi_SQLITE_IOERR_SHORT_READ 522L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOERR_WRITE
+#define org_sqlite_jni_capi_CApi_SQLITE_IOERR_WRITE 778L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOERR_FSYNC
+#define org_sqlite_jni_capi_CApi_SQLITE_IOERR_FSYNC 1034L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOERR_DIR_FSYNC
+#define org_sqlite_jni_capi_CApi_SQLITE_IOERR_DIR_FSYNC 1290L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOERR_TRUNCATE
+#define org_sqlite_jni_capi_CApi_SQLITE_IOERR_TRUNCATE 1546L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOERR_FSTAT
+#define org_sqlite_jni_capi_CApi_SQLITE_IOERR_FSTAT 1802L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOERR_UNLOCK
+#define org_sqlite_jni_capi_CApi_SQLITE_IOERR_UNLOCK 2058L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOERR_RDLOCK
+#define org_sqlite_jni_capi_CApi_SQLITE_IOERR_RDLOCK 2314L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOERR_DELETE
+#define org_sqlite_jni_capi_CApi_SQLITE_IOERR_DELETE 2570L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOERR_BLOCKED
+#define org_sqlite_jni_capi_CApi_SQLITE_IOERR_BLOCKED 2826L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOERR_NOMEM
+#define org_sqlite_jni_capi_CApi_SQLITE_IOERR_NOMEM 3082L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOERR_ACCESS
+#define org_sqlite_jni_capi_CApi_SQLITE_IOERR_ACCESS 3338L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOERR_CHECKRESERVEDLOCK
+#define org_sqlite_jni_capi_CApi_SQLITE_IOERR_CHECKRESERVEDLOCK 3594L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOERR_LOCK
+#define org_sqlite_jni_capi_CApi_SQLITE_IOERR_LOCK 3850L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOERR_CLOSE
+#define org_sqlite_jni_capi_CApi_SQLITE_IOERR_CLOSE 4106L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOERR_DIR_CLOSE
+#define org_sqlite_jni_capi_CApi_SQLITE_IOERR_DIR_CLOSE 4362L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOERR_SHMOPEN
+#define org_sqlite_jni_capi_CApi_SQLITE_IOERR_SHMOPEN 4618L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOERR_SHMSIZE
+#define org_sqlite_jni_capi_CApi_SQLITE_IOERR_SHMSIZE 4874L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOERR_SHMLOCK
+#define org_sqlite_jni_capi_CApi_SQLITE_IOERR_SHMLOCK 5130L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOERR_SHMMAP
+#define org_sqlite_jni_capi_CApi_SQLITE_IOERR_SHMMAP 5386L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOERR_SEEK
+#define org_sqlite_jni_capi_CApi_SQLITE_IOERR_SEEK 5642L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOERR_DELETE_NOENT
+#define org_sqlite_jni_capi_CApi_SQLITE_IOERR_DELETE_NOENT 5898L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOERR_MMAP
+#define org_sqlite_jni_capi_CApi_SQLITE_IOERR_MMAP 6154L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOERR_GETTEMPPATH
+#define org_sqlite_jni_capi_CApi_SQLITE_IOERR_GETTEMPPATH 6410L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOERR_CONVPATH
+#define org_sqlite_jni_capi_CApi_SQLITE_IOERR_CONVPATH 6666L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOERR_VNODE
+#define org_sqlite_jni_capi_CApi_SQLITE_IOERR_VNODE 6922L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOERR_AUTH
+#define org_sqlite_jni_capi_CApi_SQLITE_IOERR_AUTH 7178L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOERR_BEGIN_ATOMIC
+#define org_sqlite_jni_capi_CApi_SQLITE_IOERR_BEGIN_ATOMIC 7434L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOERR_COMMIT_ATOMIC
+#define org_sqlite_jni_capi_CApi_SQLITE_IOERR_COMMIT_ATOMIC 7690L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOERR_ROLLBACK_ATOMIC
+#define org_sqlite_jni_capi_CApi_SQLITE_IOERR_ROLLBACK_ATOMIC 7946L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOERR_DATA
+#define org_sqlite_jni_capi_CApi_SQLITE_IOERR_DATA 8202L
+#undef org_sqlite_jni_capi_CApi_SQLITE_IOERR_CORRUPTFS
+#define org_sqlite_jni_capi_CApi_SQLITE_IOERR_CORRUPTFS 8458L
+#undef org_sqlite_jni_capi_CApi_SQLITE_LOCKED_SHAREDCACHE
+#define org_sqlite_jni_capi_CApi_SQLITE_LOCKED_SHAREDCACHE 262L
+#undef org_sqlite_jni_capi_CApi_SQLITE_LOCKED_VTAB
+#define org_sqlite_jni_capi_CApi_SQLITE_LOCKED_VTAB 518L
+#undef org_sqlite_jni_capi_CApi_SQLITE_BUSY_RECOVERY
+#define org_sqlite_jni_capi_CApi_SQLITE_BUSY_RECOVERY 261L
+#undef org_sqlite_jni_capi_CApi_SQLITE_BUSY_SNAPSHOT
+#define org_sqlite_jni_capi_CApi_SQLITE_BUSY_SNAPSHOT 517L
+#undef org_sqlite_jni_capi_CApi_SQLITE_BUSY_TIMEOUT
+#define org_sqlite_jni_capi_CApi_SQLITE_BUSY_TIMEOUT 773L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CANTOPEN_NOTEMPDIR
+#define org_sqlite_jni_capi_CApi_SQLITE_CANTOPEN_NOTEMPDIR 270L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CANTOPEN_ISDIR
+#define org_sqlite_jni_capi_CApi_SQLITE_CANTOPEN_ISDIR 526L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CANTOPEN_FULLPATH
+#define org_sqlite_jni_capi_CApi_SQLITE_CANTOPEN_FULLPATH 782L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CANTOPEN_CONVPATH
+#define org_sqlite_jni_capi_CApi_SQLITE_CANTOPEN_CONVPATH 1038L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CANTOPEN_SYMLINK
+#define org_sqlite_jni_capi_CApi_SQLITE_CANTOPEN_SYMLINK 1550L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CORRUPT_VTAB
+#define org_sqlite_jni_capi_CApi_SQLITE_CORRUPT_VTAB 267L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CORRUPT_SEQUENCE
+#define org_sqlite_jni_capi_CApi_SQLITE_CORRUPT_SEQUENCE 523L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CORRUPT_INDEX
+#define org_sqlite_jni_capi_CApi_SQLITE_CORRUPT_INDEX 779L
+#undef org_sqlite_jni_capi_CApi_SQLITE_READONLY_RECOVERY
+#define org_sqlite_jni_capi_CApi_SQLITE_READONLY_RECOVERY 264L
+#undef org_sqlite_jni_capi_CApi_SQLITE_READONLY_CANTLOCK
+#define org_sqlite_jni_capi_CApi_SQLITE_READONLY_CANTLOCK 520L
+#undef org_sqlite_jni_capi_CApi_SQLITE_READONLY_ROLLBACK
+#define org_sqlite_jni_capi_CApi_SQLITE_READONLY_ROLLBACK 776L
+#undef org_sqlite_jni_capi_CApi_SQLITE_READONLY_DBMOVED
+#define org_sqlite_jni_capi_CApi_SQLITE_READONLY_DBMOVED 1032L
+#undef org_sqlite_jni_capi_CApi_SQLITE_READONLY_CANTINIT
+#define org_sqlite_jni_capi_CApi_SQLITE_READONLY_CANTINIT 1288L
+#undef org_sqlite_jni_capi_CApi_SQLITE_READONLY_DIRECTORY
+#define org_sqlite_jni_capi_CApi_SQLITE_READONLY_DIRECTORY 1544L
+#undef org_sqlite_jni_capi_CApi_SQLITE_ABORT_ROLLBACK
+#define org_sqlite_jni_capi_CApi_SQLITE_ABORT_ROLLBACK 516L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CONSTRAINT_CHECK
+#define org_sqlite_jni_capi_CApi_SQLITE_CONSTRAINT_CHECK 275L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CONSTRAINT_COMMITHOOK
+#define org_sqlite_jni_capi_CApi_SQLITE_CONSTRAINT_COMMITHOOK 531L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CONSTRAINT_FOREIGNKEY
+#define org_sqlite_jni_capi_CApi_SQLITE_CONSTRAINT_FOREIGNKEY 787L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CONSTRAINT_FUNCTION
+#define org_sqlite_jni_capi_CApi_SQLITE_CONSTRAINT_FUNCTION 1043L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CONSTRAINT_NOTNULL
+#define org_sqlite_jni_capi_CApi_SQLITE_CONSTRAINT_NOTNULL 1299L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CONSTRAINT_PRIMARYKEY
+#define org_sqlite_jni_capi_CApi_SQLITE_CONSTRAINT_PRIMARYKEY 1555L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CONSTRAINT_TRIGGER
+#define org_sqlite_jni_capi_CApi_SQLITE_CONSTRAINT_TRIGGER 1811L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CONSTRAINT_UNIQUE
+#define org_sqlite_jni_capi_CApi_SQLITE_CONSTRAINT_UNIQUE 2067L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CONSTRAINT_VTAB
+#define org_sqlite_jni_capi_CApi_SQLITE_CONSTRAINT_VTAB 2323L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CONSTRAINT_ROWID
+#define org_sqlite_jni_capi_CApi_SQLITE_CONSTRAINT_ROWID 2579L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CONSTRAINT_PINNED
+#define org_sqlite_jni_capi_CApi_SQLITE_CONSTRAINT_PINNED 2835L
+#undef org_sqlite_jni_capi_CApi_SQLITE_CONSTRAINT_DATATYPE
+#define org_sqlite_jni_capi_CApi_SQLITE_CONSTRAINT_DATATYPE 3091L
+#undef org_sqlite_jni_capi_CApi_SQLITE_NOTICE_RECOVER_WAL
+#define org_sqlite_jni_capi_CApi_SQLITE_NOTICE_RECOVER_WAL 283L
+#undef org_sqlite_jni_capi_CApi_SQLITE_NOTICE_RECOVER_ROLLBACK
+#define org_sqlite_jni_capi_CApi_SQLITE_NOTICE_RECOVER_ROLLBACK 539L
+#undef org_sqlite_jni_capi_CApi_SQLITE_WARNING_AUTOINDEX
+#define org_sqlite_jni_capi_CApi_SQLITE_WARNING_AUTOINDEX 284L
+#undef org_sqlite_jni_capi_CApi_SQLITE_AUTH_USER
+#define org_sqlite_jni_capi_CApi_SQLITE_AUTH_USER 279L
+#undef org_sqlite_jni_capi_CApi_SQLITE_OK_LOAD_PERMANENTLY
+#define org_sqlite_jni_capi_CApi_SQLITE_OK_LOAD_PERMANENTLY 256L
+#undef org_sqlite_jni_capi_CApi_SQLITE_SERIALIZE_NOCOPY
+#define org_sqlite_jni_capi_CApi_SQLITE_SERIALIZE_NOCOPY 1L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DESERIALIZE_FREEONCLOSE
+#define org_sqlite_jni_capi_CApi_SQLITE_DESERIALIZE_FREEONCLOSE 1L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DESERIALIZE_READONLY
+#define org_sqlite_jni_capi_CApi_SQLITE_DESERIALIZE_READONLY 4L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DESERIALIZE_RESIZEABLE
+#define org_sqlite_jni_capi_CApi_SQLITE_DESERIALIZE_RESIZEABLE 2L
+#undef org_sqlite_jni_capi_CApi_SQLITE_SESSION_CONFIG_STRMSIZE
+#define org_sqlite_jni_capi_CApi_SQLITE_SESSION_CONFIG_STRMSIZE 1L
+#undef org_sqlite_jni_capi_CApi_SQLITE_SESSION_OBJCONFIG_SIZE
+#define org_sqlite_jni_capi_CApi_SQLITE_SESSION_OBJCONFIG_SIZE 1L
+#undef org_sqlite_jni_capi_CApi_SQLITE_STATUS_MEMORY_USED
+#define org_sqlite_jni_capi_CApi_SQLITE_STATUS_MEMORY_USED 0L
+#undef org_sqlite_jni_capi_CApi_SQLITE_STATUS_PAGECACHE_USED
+#define org_sqlite_jni_capi_CApi_SQLITE_STATUS_PAGECACHE_USED 1L
+#undef org_sqlite_jni_capi_CApi_SQLITE_STATUS_PAGECACHE_OVERFLOW
+#define org_sqlite_jni_capi_CApi_SQLITE_STATUS_PAGECACHE_OVERFLOW 2L
+#undef org_sqlite_jni_capi_CApi_SQLITE_STATUS_MALLOC_SIZE
+#define org_sqlite_jni_capi_CApi_SQLITE_STATUS_MALLOC_SIZE 5L
+#undef org_sqlite_jni_capi_CApi_SQLITE_STATUS_PARSER_STACK
+#define org_sqlite_jni_capi_CApi_SQLITE_STATUS_PARSER_STACK 6L
+#undef org_sqlite_jni_capi_CApi_SQLITE_STATUS_PAGECACHE_SIZE
+#define org_sqlite_jni_capi_CApi_SQLITE_STATUS_PAGECACHE_SIZE 7L
+#undef org_sqlite_jni_capi_CApi_SQLITE_STATUS_MALLOC_COUNT
+#define org_sqlite_jni_capi_CApi_SQLITE_STATUS_MALLOC_COUNT 9L
+#undef org_sqlite_jni_capi_CApi_SQLITE_STMTSTATUS_FULLSCAN_STEP
+#define org_sqlite_jni_capi_CApi_SQLITE_STMTSTATUS_FULLSCAN_STEP 1L
+#undef org_sqlite_jni_capi_CApi_SQLITE_STMTSTATUS_SORT
+#define org_sqlite_jni_capi_CApi_SQLITE_STMTSTATUS_SORT 2L
+#undef org_sqlite_jni_capi_CApi_SQLITE_STMTSTATUS_AUTOINDEX
+#define org_sqlite_jni_capi_CApi_SQLITE_STMTSTATUS_AUTOINDEX 3L
+#undef org_sqlite_jni_capi_CApi_SQLITE_STMTSTATUS_VM_STEP
+#define org_sqlite_jni_capi_CApi_SQLITE_STMTSTATUS_VM_STEP 4L
+#undef org_sqlite_jni_capi_CApi_SQLITE_STMTSTATUS_REPREPARE
+#define org_sqlite_jni_capi_CApi_SQLITE_STMTSTATUS_REPREPARE 5L
+#undef org_sqlite_jni_capi_CApi_SQLITE_STMTSTATUS_RUN
+#define org_sqlite_jni_capi_CApi_SQLITE_STMTSTATUS_RUN 6L
+#undef org_sqlite_jni_capi_CApi_SQLITE_STMTSTATUS_FILTER_MISS
+#define org_sqlite_jni_capi_CApi_SQLITE_STMTSTATUS_FILTER_MISS 7L
+#undef org_sqlite_jni_capi_CApi_SQLITE_STMTSTATUS_FILTER_HIT
+#define org_sqlite_jni_capi_CApi_SQLITE_STMTSTATUS_FILTER_HIT 8L
+#undef org_sqlite_jni_capi_CApi_SQLITE_STMTSTATUS_MEMUSED
+#define org_sqlite_jni_capi_CApi_SQLITE_STMTSTATUS_MEMUSED 99L
+#undef org_sqlite_jni_capi_CApi_SQLITE_SYNC_NORMAL
+#define org_sqlite_jni_capi_CApi_SQLITE_SYNC_NORMAL 2L
+#undef org_sqlite_jni_capi_CApi_SQLITE_SYNC_FULL
+#define org_sqlite_jni_capi_CApi_SQLITE_SYNC_FULL 3L
+#undef org_sqlite_jni_capi_CApi_SQLITE_SYNC_DATAONLY
+#define org_sqlite_jni_capi_CApi_SQLITE_SYNC_DATAONLY 16L
+#undef org_sqlite_jni_capi_CApi_SQLITE_TRACE_STMT
+#define org_sqlite_jni_capi_CApi_SQLITE_TRACE_STMT 1L
+#undef org_sqlite_jni_capi_CApi_SQLITE_TRACE_PROFILE
+#define org_sqlite_jni_capi_CApi_SQLITE_TRACE_PROFILE 2L
+#undef org_sqlite_jni_capi_CApi_SQLITE_TRACE_ROW
+#define org_sqlite_jni_capi_CApi_SQLITE_TRACE_ROW 4L
+#undef org_sqlite_jni_capi_CApi_SQLITE_TRACE_CLOSE
+#define org_sqlite_jni_capi_CApi_SQLITE_TRACE_CLOSE 8L
+#undef org_sqlite_jni_capi_CApi_SQLITE_TXN_NONE
+#define org_sqlite_jni_capi_CApi_SQLITE_TXN_NONE 0L
+#undef org_sqlite_jni_capi_CApi_SQLITE_TXN_READ
+#define org_sqlite_jni_capi_CApi_SQLITE_TXN_READ 1L
+#undef org_sqlite_jni_capi_CApi_SQLITE_TXN_WRITE
+#define org_sqlite_jni_capi_CApi_SQLITE_TXN_WRITE 2L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DETERMINISTIC
+#define org_sqlite_jni_capi_CApi_SQLITE_DETERMINISTIC 2048L
+#undef org_sqlite_jni_capi_CApi_SQLITE_DIRECTONLY
+#define org_sqlite_jni_capi_CApi_SQLITE_DIRECTONLY 524288L
+#undef org_sqlite_jni_capi_CApi_SQLITE_SUBTYPE
+#define org_sqlite_jni_capi_CApi_SQLITE_SUBTYPE 1048576L
+#undef org_sqlite_jni_capi_CApi_SQLITE_INNOCUOUS
+#define org_sqlite_jni_capi_CApi_SQLITE_INNOCUOUS 2097152L
+#undef org_sqlite_jni_capi_CApi_SQLITE_RESULT_SUBTYPE
+#define org_sqlite_jni_capi_CApi_SQLITE_RESULT_SUBTYPE 16777216L
+#undef org_sqlite_jni_capi_CApi_SQLITE_INDEX_SCAN_UNIQUE
+#define org_sqlite_jni_capi_CApi_SQLITE_INDEX_SCAN_UNIQUE 1L
+#undef org_sqlite_jni_capi_CApi_SQLITE_INDEX_CONSTRAINT_EQ
+#define org_sqlite_jni_capi_CApi_SQLITE_INDEX_CONSTRAINT_EQ 2L
+#undef org_sqlite_jni_capi_CApi_SQLITE_INDEX_CONSTRAINT_GT
+#define org_sqlite_jni_capi_CApi_SQLITE_INDEX_CONSTRAINT_GT 4L
+#undef org_sqlite_jni_capi_CApi_SQLITE_INDEX_CONSTRAINT_LE
+#define org_sqlite_jni_capi_CApi_SQLITE_INDEX_CONSTRAINT_LE 8L
+#undef org_sqlite_jni_capi_CApi_SQLITE_INDEX_CONSTRAINT_LT
+#define org_sqlite_jni_capi_CApi_SQLITE_INDEX_CONSTRAINT_LT 16L
+#undef org_sqlite_jni_capi_CApi_SQLITE_INDEX_CONSTRAINT_GE
+#define org_sqlite_jni_capi_CApi_SQLITE_INDEX_CONSTRAINT_GE 32L
+#undef org_sqlite_jni_capi_CApi_SQLITE_INDEX_CONSTRAINT_MATCH
+#define org_sqlite_jni_capi_CApi_SQLITE_INDEX_CONSTRAINT_MATCH 64L
+#undef org_sqlite_jni_capi_CApi_SQLITE_INDEX_CONSTRAINT_LIKE
+#define org_sqlite_jni_capi_CApi_SQLITE_INDEX_CONSTRAINT_LIKE 65L
+#undef org_sqlite_jni_capi_CApi_SQLITE_INDEX_CONSTRAINT_GLOB
+#define org_sqlite_jni_capi_CApi_SQLITE_INDEX_CONSTRAINT_GLOB 66L
+#undef org_sqlite_jni_capi_CApi_SQLITE_INDEX_CONSTRAINT_REGEXP
+#define org_sqlite_jni_capi_CApi_SQLITE_INDEX_CONSTRAINT_REGEXP 67L
+#undef org_sqlite_jni_capi_CApi_SQLITE_INDEX_CONSTRAINT_NE
+#define org_sqlite_jni_capi_CApi_SQLITE_INDEX_CONSTRAINT_NE 68L
+#undef org_sqlite_jni_capi_CApi_SQLITE_INDEX_CONSTRAINT_ISNOT
+#define org_sqlite_jni_capi_CApi_SQLITE_INDEX_CONSTRAINT_ISNOT 69L
+#undef org_sqlite_jni_capi_CApi_SQLITE_INDEX_CONSTRAINT_ISNOTNULL
+#define org_sqlite_jni_capi_CApi_SQLITE_INDEX_CONSTRAINT_ISNOTNULL 70L
+#undef org_sqlite_jni_capi_CApi_SQLITE_INDEX_CONSTRAINT_ISNULL
+#define org_sqlite_jni_capi_CApi_SQLITE_INDEX_CONSTRAINT_ISNULL 71L
+#undef org_sqlite_jni_capi_CApi_SQLITE_INDEX_CONSTRAINT_IS
+#define org_sqlite_jni_capi_CApi_SQLITE_INDEX_CONSTRAINT_IS 72L
+#undef org_sqlite_jni_capi_CApi_SQLITE_INDEX_CONSTRAINT_LIMIT
+#define org_sqlite_jni_capi_CApi_SQLITE_INDEX_CONSTRAINT_LIMIT 73L
+#undef org_sqlite_jni_capi_CApi_SQLITE_INDEX_CONSTRAINT_OFFSET
+#define org_sqlite_jni_capi_CApi_SQLITE_INDEX_CONSTRAINT_OFFSET 74L
+#undef org_sqlite_jni_capi_CApi_SQLITE_INDEX_CONSTRAINT_FUNCTION
+#define org_sqlite_jni_capi_CApi_SQLITE_INDEX_CONSTRAINT_FUNCTION 150L
+#undef org_sqlite_jni_capi_CApi_SQLITE_VTAB_CONSTRAINT_SUPPORT
+#define org_sqlite_jni_capi_CApi_SQLITE_VTAB_CONSTRAINT_SUPPORT 1L
+#undef org_sqlite_jni_capi_CApi_SQLITE_VTAB_INNOCUOUS
+#define org_sqlite_jni_capi_CApi_SQLITE_VTAB_INNOCUOUS 2L
+#undef org_sqlite_jni_capi_CApi_SQLITE_VTAB_DIRECTONLY
+#define org_sqlite_jni_capi_CApi_SQLITE_VTAB_DIRECTONLY 3L
+#undef org_sqlite_jni_capi_CApi_SQLITE_VTAB_USES_ALL_SCHEMAS
+#define org_sqlite_jni_capi_CApi_SQLITE_VTAB_USES_ALL_SCHEMAS 4L
+#undef org_sqlite_jni_capi_CApi_SQLITE_ROLLBACK
+#define org_sqlite_jni_capi_CApi_SQLITE_ROLLBACK 1L
+#undef org_sqlite_jni_capi_CApi_SQLITE_FAIL
+#define org_sqlite_jni_capi_CApi_SQLITE_FAIL 3L
+#undef org_sqlite_jni_capi_CApi_SQLITE_REPLACE
+#define org_sqlite_jni_capi_CApi_SQLITE_REPLACE 5L
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    init
+ * Signature: ()V
+ */
+JNIEXPORT void JNICALL Java_org_sqlite_jni_capi_CApi_init
+  (JNIEnv *, jclass);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_java_uncache_thread
+ * Signature: ()Z
+ */
+JNIEXPORT jboolean JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1java_1uncache_1thread
+  (JNIEnv *, jclass);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_jni_supports_nio
+ * Signature: ()Z
+ */
+JNIEXPORT jboolean JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1jni_1supports_1nio
+  (JNIEnv *, jclass);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_jni_db_error
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3;ILjava/lang/String;)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1jni_1db_1error
+  (JNIEnv *, jclass, jobject, jint, jstring);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_aggregate_context
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3_context;Z)J
+ */
+JNIEXPORT jlong JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1aggregate_1context
+  (JNIEnv *, jclass, jobject, jboolean);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_auto_extension
+ * Signature: (Lorg/sqlite/jni/capi/AutoExtensionCallback;)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1auto_1extension
+  (JNIEnv *, jclass, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_backup_finish
+ * Signature: (J)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1backup_1finish
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_backup_init
+ * Signature: (JLjava/lang/String;JLjava/lang/String;)Lorg/sqlite/jni/capi/sqlite3_backup;
+ */
+JNIEXPORT jobject JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1backup_1init
+  (JNIEnv *, jclass, jlong, jstring, jlong, jstring);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_backup_pagecount
+ * Signature: (J)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1backup_1pagecount
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_backup_remaining
+ * Signature: (J)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1backup_1remaining
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_backup_step
+ * Signature: (JI)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1backup_1step
+  (JNIEnv *, jclass, jlong, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_bind_blob
+ * Signature: (JI[BI)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1bind_1blob
+  (JNIEnv *, jclass, jlong, jint, jbyteArray, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_bind_double
+ * Signature: (JID)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1bind_1double
+  (JNIEnv *, jclass, jlong, jint, jdouble);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_bind_int
+ * Signature: (JII)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1bind_1int
+  (JNIEnv *, jclass, jlong, jint, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_bind_int64
+ * Signature: (JIJ)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1bind_1int64
+  (JNIEnv *, jclass, jlong, jint, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_bind_java_object
+ * Signature: (JILjava/lang/Object;)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1bind_1java_1object
+  (JNIEnv *, jclass, jlong, jint, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_bind_nio_buffer
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3_stmt;ILjava/nio/ByteBuffer;II)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1bind_1nio_1buffer
+  (JNIEnv *, jclass, jobject, jint, jobject, jint, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_bind_null
+ * Signature: (JI)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1bind_1null
+  (JNIEnv *, jclass, jlong, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_bind_parameter_count
+ * Signature: (J)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1bind_1parameter_1count
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_bind_parameter_index
+ * Signature: (J[B)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1bind_1parameter_1index
+  (JNIEnv *, jclass, jlong, jbyteArray);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_bind_parameter_name
+ * Signature: (JI)Ljava/lang/String;
+ */
+JNIEXPORT jstring JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1bind_1parameter_1name
+  (JNIEnv *, jclass, jlong, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_bind_text
+ * Signature: (JI[BI)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1bind_1text
+  (JNIEnv *, jclass, jlong, jint, jbyteArray, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_bind_text16
+ * Signature: (JI[BI)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1bind_1text16
+  (JNIEnv *, jclass, jlong, jint, jbyteArray, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_bind_value
+ * Signature: (JIJ)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1bind_1value
+  (JNIEnv *, jclass, jlong, jint, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_bind_zeroblob
+ * Signature: (JII)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1bind_1zeroblob
+  (JNIEnv *, jclass, jlong, jint, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_bind_zeroblob64
+ * Signature: (JIJ)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1bind_1zeroblob64
+  (JNIEnv *, jclass, jlong, jint, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_blob_bytes
+ * Signature: (J)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1blob_1bytes
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_blob_close
+ * Signature: (J)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1blob_1close
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_blob_open
+ * Signature: (JLjava/lang/String;Ljava/lang/String;Ljava/lang/String;JILorg/sqlite/jni/capi/OutputPointer/sqlite3_blob;)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1blob_1open
+  (JNIEnv *, jclass, jlong, jstring, jstring, jstring, jlong, jint, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_blob_read
+ * Signature: (J[BI)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1blob_1read
+  (JNIEnv *, jclass, jlong, jbyteArray, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_blob_read_nio_buffer
+ * Signature: (JILjava/nio/ByteBuffer;II)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1blob_1read_1nio_1buffer
+  (JNIEnv *, jclass, jlong, jint, jobject, jint, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_blob_reopen
+ * Signature: (JJ)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1blob_1reopen
+  (JNIEnv *, jclass, jlong, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_blob_write
+ * Signature: (J[BI)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1blob_1write
+  (JNIEnv *, jclass, jlong, jbyteArray, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_blob_write_nio_buffer
+ * Signature: (JILjava/nio/ByteBuffer;II)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1blob_1write_1nio_1buffer
+  (JNIEnv *, jclass, jlong, jint, jobject, jint, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_busy_handler
+ * Signature: (JLorg/sqlite/jni/capi/BusyHandlerCallback;)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1busy_1handler
+  (JNIEnv *, jclass, jlong, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_busy_timeout
+ * Signature: (JI)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1busy_1timeout
+  (JNIEnv *, jclass, jlong, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_cancel_auto_extension
+ * Signature: (Lorg/sqlite/jni/capi/AutoExtensionCallback;)Z
+ */
+JNIEXPORT jboolean JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1cancel_1auto_1extension
+  (JNIEnv *, jclass, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_changes
+ * Signature: (J)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1changes
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_changes64
+ * Signature: (J)J
+ */
+JNIEXPORT jlong JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1changes64
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_clear_bindings
+ * Signature: (J)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1clear_1bindings
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_close
+ * Signature: (J)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1close
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_close_v2
+ * Signature: (J)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1close_1v2
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_column_blob
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3_stmt;I)[B
+ */
+JNIEXPORT jbyteArray JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1column_1blob
+  (JNIEnv *, jclass, jobject, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_column_bytes
+ * Signature: (JI)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1column_1bytes
+  (JNIEnv *, jclass, jlong, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_column_bytes16
+ * Signature: (JI)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1column_1bytes16
+  (JNIEnv *, jclass, jlong, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_column_count
+ * Signature: (J)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1column_1count
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_column_database_name
+ * Signature: (JI)Ljava/lang/String;
+ */
+JNIEXPORT jstring JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1column_1database_1name
+  (JNIEnv *, jclass, jlong, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_column_decltype
+ * Signature: (JI)Ljava/lang/String;
+ */
+JNIEXPORT jstring JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1column_1decltype
+  (JNIEnv *, jclass, jlong, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_column_double
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3_stmt;I)D
+ */
+JNIEXPORT jdouble JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1column_1double
+  (JNIEnv *, jclass, jobject, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_column_int
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3_stmt;I)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1column_1int
+  (JNIEnv *, jclass, jobject, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_column_int64
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3_stmt;I)J
+ */
+JNIEXPORT jlong JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1column_1int64
+  (JNIEnv *, jclass, jobject, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_column_java_object
+ * Signature: (JI)Ljava/lang/Object;
+ */
+JNIEXPORT jobject JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1column_1java_1object
+  (JNIEnv *, jclass, jlong, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_column_name
+ * Signature: (JI)Ljava/lang/String;
+ */
+JNIEXPORT jstring JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1column_1name
+  (JNIEnv *, jclass, jlong, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_column_nio_buffer
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3_stmt;I)Ljava/nio/ByteBuffer;
+ */
+JNIEXPORT jobject JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1column_1nio_1buffer
+  (JNIEnv *, jclass, jobject, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_column_origin_name
+ * Signature: (JI)Ljava/lang/String;
+ */
+JNIEXPORT jstring JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1column_1origin_1name
+  (JNIEnv *, jclass, jlong, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_column_table_name
+ * Signature: (JI)Ljava/lang/String;
+ */
+JNIEXPORT jstring JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1column_1table_1name
+  (JNIEnv *, jclass, jlong, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_column_text
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3_stmt;I)[B
+ */
+JNIEXPORT jbyteArray JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1column_1text
+  (JNIEnv *, jclass, jobject, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_column_text16
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3_stmt;I)Ljava/lang/String;
+ */
+JNIEXPORT jstring JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1column_1text16
+  (JNIEnv *, jclass, jobject, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_column_type
+ * Signature: (JI)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1column_1type
+  (JNIEnv *, jclass, jlong, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_column_value
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3_stmt;I)Lorg/sqlite/jni/capi/sqlite3_value;
+ */
+JNIEXPORT jobject JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1column_1value
+  (JNIEnv *, jclass, jobject, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_collation_needed
+ * Signature: (JLorg/sqlite/jni/capi/CollationNeededCallback;)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1collation_1needed
+  (JNIEnv *, jclass, jlong, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_commit_hook
+ * Signature: (JLorg/sqlite/jni/capi/CommitHookCallback;)Lorg/sqlite/jni/capi/CommitHookCallback;
+ */
+JNIEXPORT jobject JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1commit_1hook
+  (JNIEnv *, jclass, jlong, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_compileoption_get
+ * Signature: (I)Ljava/lang/String;
+ */
+JNIEXPORT jstring JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1compileoption_1get
+  (JNIEnv *, jclass, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_compileoption_used
+ * Signature: (Ljava/lang/String;)Z
+ */
+JNIEXPORT jboolean JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1compileoption_1used
+  (JNIEnv *, jclass, jstring);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_complete
+ * Signature: ([B)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1complete
+  (JNIEnv *, jclass, jbyteArray);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_config__enable
+ * Signature: (I)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1config_1_1enable
+  (JNIEnv *, jclass, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_config__CONFIG_LOG
+ * Signature: (Lorg/sqlite/jni/capi/ConfigLogCallback;)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1config_1_1CONFIG_1LOG
+  (JNIEnv *, jclass, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_config__SQLLOG
+ * Signature: (Lorg/sqlite/jni/capi/ConfigSqlLogCallback;)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1config_1_1SQLLOG
+  (JNIEnv *, jclass, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_context_db_handle
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3_context;)Lorg/sqlite/jni/capi/sqlite3;
+ */
+JNIEXPORT jobject JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1context_1db_1handle
+  (JNIEnv *, jclass, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_create_collation
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3;Ljava/lang/String;ILorg/sqlite/jni/capi/CollationCallback;)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1create_1collation
+  (JNIEnv *, jclass, jobject, jstring, jint, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_create_function
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3;Ljava/lang/String;IILorg/sqlite/jni/capi/SQLFunction;)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1create_1function
+  (JNIEnv *, jclass, jobject, jstring, jint, jint, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_data_count
+ * Signature: (J)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1data_1count
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_db_config
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3;IILorg/sqlite/jni/capi/OutputPointer/Int32;)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1db_1config__Lorg_sqlite_jni_capi_sqlite3_2IILorg_sqlite_jni_capi_OutputPointer_Int32_2
+  (JNIEnv *, jclass, jobject, jint, jint, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_db_config
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3;ILjava/lang/String;)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1db_1config__Lorg_sqlite_jni_capi_sqlite3_2ILjava_lang_String_2
+  (JNIEnv *, jclass, jobject, jint, jstring);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_db_name
+ * Signature: (JI)Ljava/lang/String;
+ */
+JNIEXPORT jstring JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1db_1name
+  (JNIEnv *, jclass, jlong, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_db_filename
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3;Ljava/lang/String;)Ljava/lang/String;
+ */
+JNIEXPORT jstring JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1db_1filename
+  (JNIEnv *, jclass, jobject, jstring);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_db_handle
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3_stmt;)Lorg/sqlite/jni/capi/sqlite3;
+ */
+JNIEXPORT jobject JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1db_1handle
+  (JNIEnv *, jclass, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_db_readonly
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3;Ljava/lang/String;)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1db_1readonly
+  (JNIEnv *, jclass, jobject, jstring);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_db_release_memory
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3;)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1db_1release_1memory
+  (JNIEnv *, jclass, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_db_status
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3;ILorg/sqlite/jni/capi/OutputPointer/Int32;Lorg/sqlite/jni/capi/OutputPointer/Int32;Z)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1db_1status
+  (JNIEnv *, jclass, jobject, jint, jobject, jobject, jboolean);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_errcode
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3;)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1errcode
+  (JNIEnv *, jclass, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_errmsg
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3;)Ljava/lang/String;
+ */
+JNIEXPORT jstring JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1errmsg
+  (JNIEnv *, jclass, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_error_offset
+ * Signature: (J)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1error_1offset
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_errstr
+ * Signature: (I)Ljava/lang/String;
+ */
+JNIEXPORT jstring JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1errstr
+  (JNIEnv *, jclass, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_expanded_sql
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3_stmt;)Ljava/lang/String;
+ */
+JNIEXPORT jstring JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1expanded_1sql
+  (JNIEnv *, jclass, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_extended_errcode
+ * Signature: (J)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1extended_1errcode
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_extended_result_codes
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3;Z)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1extended_1result_1codes
+  (JNIEnv *, jclass, jobject, jboolean);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_get_autocommit
+ * Signature: (J)Z
+ */
+JNIEXPORT jboolean JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1get_1autocommit
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_get_auxdata
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3_context;I)Ljava/lang/Object;
+ */
+JNIEXPORT jobject JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1get_1auxdata
+  (JNIEnv *, jclass, jobject, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_finalize
+ * Signature: (J)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1finalize
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_initialize
+ * Signature: ()I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1initialize
+  (JNIEnv *, jclass);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_interrupt
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3;)V
+ */
+JNIEXPORT void JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1interrupt
+  (JNIEnv *, jclass, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_is_interrupted
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3;)Z
+ */
+JNIEXPORT jboolean JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1is_1interrupted
+  (JNIEnv *, jclass, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_keyword_check
+ * Signature: (Ljava/lang/String;)Z
+ */
+JNIEXPORT jboolean JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1keyword_1check
+  (JNIEnv *, jclass, jstring);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_keyword_count
+ * Signature: ()I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1keyword_1count
+  (JNIEnv *, jclass);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_keyword_name
+ * Signature: (I)Ljava/lang/String;
+ */
+JNIEXPORT jstring JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1keyword_1name
+  (JNIEnv *, jclass, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_last_insert_rowid
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3;)J
+ */
+JNIEXPORT jlong JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1last_1insert_1rowid
+  (JNIEnv *, jclass, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_libversion
+ * Signature: ()Ljava/lang/String;
+ */
+JNIEXPORT jstring JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1libversion
+  (JNIEnv *, jclass);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_libversion_number
+ * Signature: ()I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1libversion_1number
+  (JNIEnv *, jclass);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_limit
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3;II)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1limit
+  (JNIEnv *, jclass, jobject, jint, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_normalized_sql
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3_stmt;)Ljava/lang/String;
+ */
+JNIEXPORT jstring JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1normalized_1sql
+  (JNIEnv *, jclass, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_open
+ * Signature: (Ljava/lang/String;Lorg/sqlite/jni/capi/OutputPointer/sqlite3;)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1open
+  (JNIEnv *, jclass, jstring, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_open_v2
+ * Signature: (Ljava/lang/String;Lorg/sqlite/jni/capi/OutputPointer/sqlite3;ILjava/lang/String;)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1open_1v2
+  (JNIEnv *, jclass, jstring, jobject, jint, jstring);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_prepare
+ * Signature: (J[BILorg/sqlite/jni/capi/OutputPointer/sqlite3_stmt;Lorg/sqlite/jni/capi/OutputPointer/Int32;)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1prepare
+  (JNIEnv *, jclass, jlong, jbyteArray, jint, jobject, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_prepare_v2
+ * Signature: (J[BILorg/sqlite/jni/capi/OutputPointer/sqlite3_stmt;Lorg/sqlite/jni/capi/OutputPointer/Int32;)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1prepare_1v2
+  (JNIEnv *, jclass, jlong, jbyteArray, jint, jobject, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_prepare_v3
+ * Signature: (J[BIILorg/sqlite/jni/capi/OutputPointer/sqlite3_stmt;Lorg/sqlite/jni/capi/OutputPointer/Int32;)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1prepare_1v3
+  (JNIEnv *, jclass, jlong, jbyteArray, jint, jint, jobject, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_preupdate_blobwrite
+ * Signature: (J)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1preupdate_1blobwrite
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_preupdate_count
+ * Signature: (J)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1preupdate_1count
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_preupdate_depth
+ * Signature: (J)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1preupdate_1depth
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_preupdate_hook
+ * Signature: (JLorg/sqlite/jni/capi/PreupdateHookCallback;)Lorg/sqlite/jni/capi/PreupdateHookCallback;
+ */
+JNIEXPORT jobject JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1preupdate_1hook
+  (JNIEnv *, jclass, jlong, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_preupdate_new
+ * Signature: (JILorg/sqlite/jni/capi/OutputPointer/sqlite3_value;)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1preupdate_1new
+  (JNIEnv *, jclass, jlong, jint, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_preupdate_old
+ * Signature: (JILorg/sqlite/jni/capi/OutputPointer/sqlite3_value;)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1preupdate_1old
+  (JNIEnv *, jclass, jlong, jint, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_progress_handler
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3;ILorg/sqlite/jni/capi/ProgressHandlerCallback;)V
+ */
+JNIEXPORT void JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1progress_1handler
+  (JNIEnv *, jclass, jobject, jint, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_randomness
+ * Signature: ([B)V
+ */
+JNIEXPORT void JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1randomness
+  (JNIEnv *, jclass, jbyteArray);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_release_memory
+ * Signature: (I)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1release_1memory
+  (JNIEnv *, jclass, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_reset
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3_stmt;)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1reset
+  (JNIEnv *, jclass, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_reset_auto_extension
+ * Signature: ()V
+ */
+JNIEXPORT void JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1reset_1auto_1extension
+  (JNIEnv *, jclass);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_result_double
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3_context;D)V
+ */
+JNIEXPORT void JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1result_1double
+  (JNIEnv *, jclass, jobject, jdouble);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_result_error
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3_context;[BI)V
+ */
+JNIEXPORT void JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1result_1error
+  (JNIEnv *, jclass, jobject, jbyteArray, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_result_error_toobig
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3_context;)V
+ */
+JNIEXPORT void JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1result_1error_1toobig
+  (JNIEnv *, jclass, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_result_error_nomem
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3_context;)V
+ */
+JNIEXPORT void JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1result_1error_1nomem
+  (JNIEnv *, jclass, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_result_error_code
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3_context;I)V
+ */
+JNIEXPORT void JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1result_1error_1code
+  (JNIEnv *, jclass, jobject, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_result_int
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3_context;I)V
+ */
+JNIEXPORT void JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1result_1int
+  (JNIEnv *, jclass, jobject, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_result_int64
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3_context;J)V
+ */
+JNIEXPORT void JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1result_1int64
+  (JNIEnv *, jclass, jobject, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_result_java_object
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3_context;Ljava/lang/Object;)V
+ */
+JNIEXPORT void JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1result_1java_1object
+  (JNIEnv *, jclass, jobject, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_result_nio_buffer
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3_context;Ljava/nio/ByteBuffer;II)V
+ */
+JNIEXPORT void JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1result_1nio_1buffer
+  (JNIEnv *, jclass, jobject, jobject, jint, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_result_null
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3_context;)V
+ */
+JNIEXPORT void JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1result_1null
+  (JNIEnv *, jclass, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_result_subtype
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3_context;I)V
+ */
+JNIEXPORT void JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1result_1subtype
+  (JNIEnv *, jclass, jobject, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_result_value
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3_context;Lorg/sqlite/jni/capi/sqlite3_value;)V
+ */
+JNIEXPORT void JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1result_1value
+  (JNIEnv *, jclass, jobject, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_result_zeroblob
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3_context;I)V
+ */
+JNIEXPORT void JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1result_1zeroblob
+  (JNIEnv *, jclass, jobject, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_result_zeroblob64
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3_context;J)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1result_1zeroblob64
+  (JNIEnv *, jclass, jobject, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_result_blob
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3_context;[BI)V
+ */
+JNIEXPORT void JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1result_1blob
+  (JNIEnv *, jclass, jobject, jbyteArray, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_result_blob64
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3_context;[BJ)V
+ */
+JNIEXPORT void JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1result_1blob64
+  (JNIEnv *, jclass, jobject, jbyteArray, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_result_text
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3_context;[BI)V
+ */
+JNIEXPORT void JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1result_1text
+  (JNIEnv *, jclass, jobject, jbyteArray, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_result_text64
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3_context;[BJI)V
+ */
+JNIEXPORT void JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1result_1text64
+  (JNIEnv *, jclass, jobject, jbyteArray, jlong, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_rollback_hook
+ * Signature: (JLorg/sqlite/jni/capi/RollbackHookCallback;)Lorg/sqlite/jni/capi/RollbackHookCallback;
+ */
+JNIEXPORT jobject JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1rollback_1hook
+  (JNIEnv *, jclass, jlong, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_set_authorizer
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3;Lorg/sqlite/jni/capi/AuthorizerCallback;)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1set_1authorizer
+  (JNIEnv *, jclass, jobject, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_set_auxdata
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3_context;ILjava/lang/Object;)V
+ */
+JNIEXPORT void JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1set_1auxdata
+  (JNIEnv *, jclass, jobject, jint, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_set_last_insert_rowid
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3;J)V
+ */
+JNIEXPORT void JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1set_1last_1insert_1rowid
+  (JNIEnv *, jclass, jobject, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_shutdown
+ * Signature: ()I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1shutdown
+  (JNIEnv *, jclass);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_sleep
+ * Signature: (I)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1sleep
+  (JNIEnv *, jclass, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_sourceid
+ * Signature: ()Ljava/lang/String;
+ */
+JNIEXPORT jstring JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1sourceid
+  (JNIEnv *, jclass);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_sql
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3_stmt;)Ljava/lang/String;
+ */
+JNIEXPORT jstring JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1sql
+  (JNIEnv *, jclass, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_status
+ * Signature: (ILorg/sqlite/jni/capi/OutputPointer/Int32;Lorg/sqlite/jni/capi/OutputPointer/Int32;Z)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1status
+  (JNIEnv *, jclass, jint, jobject, jobject, jboolean);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_status64
+ * Signature: (ILorg/sqlite/jni/capi/OutputPointer/Int64;Lorg/sqlite/jni/capi/OutputPointer/Int64;Z)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1status64
+  (JNIEnv *, jclass, jint, jobject, jobject, jboolean);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_step
+ * Signature: (J)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1step
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_stmt_busy
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3_stmt;)Z
+ */
+JNIEXPORT jboolean JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1stmt_1busy
+  (JNIEnv *, jclass, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_stmt_explain
+ * Signature: (JI)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1stmt_1explain
+  (JNIEnv *, jclass, jlong, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_stmt_isexplain
+ * Signature: (J)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1stmt_1isexplain
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_stmt_readonly
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3_stmt;)Z
+ */
+JNIEXPORT jboolean JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1stmt_1readonly
+  (JNIEnv *, jclass, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_stmt_status
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3_stmt;IZ)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1stmt_1status
+  (JNIEnv *, jclass, jobject, jint, jboolean);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_strglob
+ * Signature: ([B[B)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1strglob
+  (JNIEnv *, jclass, jbyteArray, jbyteArray);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_strlike
+ * Signature: ([B[BI)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1strlike
+  (JNIEnv *, jclass, jbyteArray, jbyteArray, jint);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_system_errno
+ * Signature: (J)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1system_1errno
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_table_column_metadata
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Lorg/sqlite/jni/capi/OutputPointer/String;Lorg/sqlite/jni/capi/OutputPointer/String;Lorg/sqlite/jni/capi/OutputPointer/Bool;Lorg/sqlite/jni/capi/OutputPointer/Bool;Lorg/sqlite/jni/capi/OutputPointer/Bool;)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1table_1column_1metadata
+  (JNIEnv *, jclass, jobject, jstring, jstring, jstring, jobject, jobject, jobject, jobject, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_threadsafe
+ * Signature: ()I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1threadsafe
+  (JNIEnv *, jclass);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_total_changes
+ * Signature: (J)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1total_1changes
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_total_changes64
+ * Signature: (J)J
+ */
+JNIEXPORT jlong JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1total_1changes64
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_trace_v2
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3;ILorg/sqlite/jni/capi/TraceV2Callback;)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1trace_1v2
+  (JNIEnv *, jclass, jobject, jint, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_txn_state
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3;Ljava/lang/String;)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1txn_1state
+  (JNIEnv *, jclass, jobject, jstring);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_update_hook
+ * Signature: (JLorg/sqlite/jni/capi/UpdateHookCallback;)Lorg/sqlite/jni/capi/UpdateHookCallback;
+ */
+JNIEXPORT jobject JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1update_1hook
+  (JNIEnv *, jclass, jlong, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_value_blob
+ * Signature: (J)[B
+ */
+JNIEXPORT jbyteArray JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1value_1blob
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_value_bytes
+ * Signature: (J)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1value_1bytes
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_value_bytes16
+ * Signature: (J)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1value_1bytes16
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_value_double
+ * Signature: (J)D
+ */
+JNIEXPORT jdouble JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1value_1double
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_value_dup
+ * Signature: (J)Lorg/sqlite/jni/capi/sqlite3_value;
+ */
+JNIEXPORT jobject JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1value_1dup
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_value_encoding
+ * Signature: (J)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1value_1encoding
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_value_free
+ * Signature: (J)V
+ */
+JNIEXPORT void JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1value_1free
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_value_frombind
+ * Signature: (J)Z
+ */
+JNIEXPORT jboolean JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1value_1frombind
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_value_int
+ * Signature: (J)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1value_1int
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_value_int64
+ * Signature: (J)J
+ */
+JNIEXPORT jlong JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1value_1int64
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_value_java_object
+ * Signature: (J)Ljava/lang/Object;
+ */
+JNIEXPORT jobject JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1value_1java_1object
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_value_nio_buffer
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3_value;)Ljava/nio/ByteBuffer;
+ */
+JNIEXPORT jobject JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1value_1nio_1buffer
+  (JNIEnv *, jclass, jobject);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_value_nochange
+ * Signature: (J)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1value_1nochange
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_value_numeric_type
+ * Signature: (J)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1value_1numeric_1type
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_value_subtype
+ * Signature: (J)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1value_1subtype
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_value_text
+ * Signature: (J)[B
+ */
+JNIEXPORT jbyteArray JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1value_1text
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_value_text16
+ * Signature: (J)Ljava/lang/String;
+ */
+JNIEXPORT jstring JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1value_1text16
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_value_type
+ * Signature: (J)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1value_1type
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     org_sqlite_jni_capi_CApi
+ * Method:    sqlite3_jni_internal_details
+ * Signature: ()V
+ */
+JNIEXPORT void JNICALL Java_org_sqlite_jni_capi_CApi_sqlite3_1jni_1internal_1details
+  (JNIEnv *, jclass);
+
+#ifdef __cplusplus
+}
+#endif
+#endif
+/* DO NOT EDIT THIS FILE - it is machine generated */
+#include <jni.h>
+/* Header for class org_sqlite_jni_capi_SQLTester */
+
+#ifndef _Included_org_sqlite_jni_capi_SQLTester
+#define _Included_org_sqlite_jni_capi_SQLTester
+#ifdef __cplusplus
+extern "C" {
+#endif
+/*
+ * Class:     org_sqlite_jni_capi_SQLTester
+ * Method:    strglob
+ * Signature: ([B[B)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_capi_SQLTester_strglob
+  (JNIEnv *, jclass, jbyteArray, jbyteArray);
+
+/*
+ * Class:     org_sqlite_jni_capi_SQLTester
+ * Method:    installCustomExtensions
+ * Signature: ()V
+ */
+JNIEXPORT void JNICALL Java_org_sqlite_jni_capi_SQLTester_installCustomExtensions
+  (JNIEnv *, jclass);
+
+#ifdef __cplusplus
+}
+#endif
+#endif
+/* DO NOT EDIT THIS FILE - it is machine generated */
+#include <jni.h>
+/* Header for class org_sqlite_jni_fts5_Fts5ExtensionApi */
+
+#ifndef _Included_org_sqlite_jni_fts5_Fts5ExtensionApi
+#define _Included_org_sqlite_jni_fts5_Fts5ExtensionApi
+#ifdef __cplusplus
+extern "C" {
+#endif
+/*
+ * Class:     org_sqlite_jni_fts5_Fts5ExtensionApi
+ * Method:    getInstance
+ * Signature: ()Lorg/sqlite/jni/fts5/Fts5ExtensionApi;
+ */
+JNIEXPORT jobject JNICALL Java_org_sqlite_jni_fts5_Fts5ExtensionApi_getInstance
+  (JNIEnv *, jclass);
+
+/*
+ * Class:     org_sqlite_jni_fts5_Fts5ExtensionApi
+ * Method:    xColumnCount
+ * Signature: (Lorg/sqlite/jni/fts5/Fts5Context;)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_fts5_Fts5ExtensionApi_xColumnCount
+  (JNIEnv *, jobject, jobject);
+
+/*
+ * Class:     org_sqlite_jni_fts5_Fts5ExtensionApi
+ * Method:    xColumnSize
+ * Signature: (Lorg/sqlite/jni/fts5/Fts5Context;ILorg/sqlite/jni/capi/OutputPointer/Int32;)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_fts5_Fts5ExtensionApi_xColumnSize
+  (JNIEnv *, jobject, jobject, jint, jobject);
+
+/*
+ * Class:     org_sqlite_jni_fts5_Fts5ExtensionApi
+ * Method:    xColumnText
+ * Signature: (Lorg/sqlite/jni/fts5/Fts5Context;ILorg/sqlite/jni/capi/OutputPointer/String;)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_fts5_Fts5ExtensionApi_xColumnText
+  (JNIEnv *, jobject, jobject, jint, jobject);
+
+/*
+ * Class:     org_sqlite_jni_fts5_Fts5ExtensionApi
+ * Method:    xColumnTotalSize
+ * Signature: (Lorg/sqlite/jni/fts5/Fts5Context;ILorg/sqlite/jni/capi/OutputPointer/Int64;)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_fts5_Fts5ExtensionApi_xColumnTotalSize
+  (JNIEnv *, jobject, jobject, jint, jobject);
+
+/*
+ * Class:     org_sqlite_jni_fts5_Fts5ExtensionApi
+ * Method:    xGetAuxdata
+ * Signature: (Lorg/sqlite/jni/fts5/Fts5Context;Z)Ljava/lang/Object;
+ */
+JNIEXPORT jobject JNICALL Java_org_sqlite_jni_fts5_Fts5ExtensionApi_xGetAuxdata
+  (JNIEnv *, jobject, jobject, jboolean);
+
+/*
+ * Class:     org_sqlite_jni_fts5_Fts5ExtensionApi
+ * Method:    xInst
+ * Signature: (Lorg/sqlite/jni/fts5/Fts5Context;ILorg/sqlite/jni/capi/OutputPointer/Int32;Lorg/sqlite/jni/capi/OutputPointer/Int32;Lorg/sqlite/jni/capi/OutputPointer/Int32;)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_fts5_Fts5ExtensionApi_xInst
+  (JNIEnv *, jobject, jobject, jint, jobject, jobject, jobject);
+
+/*
+ * Class:     org_sqlite_jni_fts5_Fts5ExtensionApi
+ * Method:    xInstCount
+ * Signature: (Lorg/sqlite/jni/fts5/Fts5Context;Lorg/sqlite/jni/capi/OutputPointer/Int32;)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_fts5_Fts5ExtensionApi_xInstCount
+  (JNIEnv *, jobject, jobject, jobject);
+
+/*
+ * Class:     org_sqlite_jni_fts5_Fts5ExtensionApi
+ * Method:    xPhraseCount
+ * Signature: (Lorg/sqlite/jni/fts5/Fts5Context;)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_fts5_Fts5ExtensionApi_xPhraseCount
+  (JNIEnv *, jobject, jobject);
+
+/*
+ * Class:     org_sqlite_jni_fts5_Fts5ExtensionApi
+ * Method:    xPhraseFirst
+ * Signature: (Lorg/sqlite/jni/fts5/Fts5Context;ILorg/sqlite/jni/fts5/Fts5PhraseIter;Lorg/sqlite/jni/capi/OutputPointer/Int32;Lorg/sqlite/jni/capi/OutputPointer/Int32;)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_fts5_Fts5ExtensionApi_xPhraseFirst
+  (JNIEnv *, jobject, jobject, jint, jobject, jobject, jobject);
+
+/*
+ * Class:     org_sqlite_jni_fts5_Fts5ExtensionApi
+ * Method:    xPhraseFirstColumn
+ * Signature: (Lorg/sqlite/jni/fts5/Fts5Context;ILorg/sqlite/jni/fts5/Fts5PhraseIter;Lorg/sqlite/jni/capi/OutputPointer/Int32;)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_fts5_Fts5ExtensionApi_xPhraseFirstColumn
+  (JNIEnv *, jobject, jobject, jint, jobject, jobject);
+
+/*
+ * Class:     org_sqlite_jni_fts5_Fts5ExtensionApi
+ * Method:    xPhraseNext
+ * Signature: (Lorg/sqlite/jni/fts5/Fts5Context;Lorg/sqlite/jni/fts5/Fts5PhraseIter;Lorg/sqlite/jni/capi/OutputPointer/Int32;Lorg/sqlite/jni/capi/OutputPointer/Int32;)V
+ */
+JNIEXPORT void JNICALL Java_org_sqlite_jni_fts5_Fts5ExtensionApi_xPhraseNext
+  (JNIEnv *, jobject, jobject, jobject, jobject, jobject);
+
+/*
+ * Class:     org_sqlite_jni_fts5_Fts5ExtensionApi
+ * Method:    xPhraseNextColumn
+ * Signature: (Lorg/sqlite/jni/fts5/Fts5Context;Lorg/sqlite/jni/fts5/Fts5PhraseIter;Lorg/sqlite/jni/capi/OutputPointer/Int32;)V
+ */
+JNIEXPORT void JNICALL Java_org_sqlite_jni_fts5_Fts5ExtensionApi_xPhraseNextColumn
+  (JNIEnv *, jobject, jobject, jobject, jobject);
+
+/*
+ * Class:     org_sqlite_jni_fts5_Fts5ExtensionApi
+ * Method:    xPhraseSize
+ * Signature: (Lorg/sqlite/jni/fts5/Fts5Context;I)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_fts5_Fts5ExtensionApi_xPhraseSize
+  (JNIEnv *, jobject, jobject, jint);
+
+/*
+ * Class:     org_sqlite_jni_fts5_Fts5ExtensionApi
+ * Method:    xQueryPhrase
+ * Signature: (Lorg/sqlite/jni/fts5/Fts5Context;ILorg/sqlite/jni/fts5/Fts5ExtensionApi/XQueryPhraseCallback;)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_fts5_Fts5ExtensionApi_xQueryPhrase
+  (JNIEnv *, jobject, jobject, jint, jobject);
+
+/*
+ * Class:     org_sqlite_jni_fts5_Fts5ExtensionApi
+ * Method:    xRowCount
+ * Signature: (Lorg/sqlite/jni/fts5/Fts5Context;Lorg/sqlite/jni/capi/OutputPointer/Int64;)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_fts5_Fts5ExtensionApi_xRowCount
+  (JNIEnv *, jobject, jobject, jobject);
+
+/*
+ * Class:     org_sqlite_jni_fts5_Fts5ExtensionApi
+ * Method:    xRowid
+ * Signature: (Lorg/sqlite/jni/fts5/Fts5Context;)J
+ */
+JNIEXPORT jlong JNICALL Java_org_sqlite_jni_fts5_Fts5ExtensionApi_xRowid
+  (JNIEnv *, jobject, jobject);
+
+/*
+ * Class:     org_sqlite_jni_fts5_Fts5ExtensionApi
+ * Method:    xSetAuxdata
+ * Signature: (Lorg/sqlite/jni/fts5/Fts5Context;Ljava/lang/Object;)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_fts5_Fts5ExtensionApi_xSetAuxdata
+  (JNIEnv *, jobject, jobject, jobject);
+
+/*
+ * Class:     org_sqlite_jni_fts5_Fts5ExtensionApi
+ * Method:    xTokenize
+ * Signature: (Lorg/sqlite/jni/fts5/Fts5Context;[BLorg/sqlite/jni/fts5/XTokenizeCallback;)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_fts5_Fts5ExtensionApi_xTokenize
+  (JNIEnv *, jobject, jobject, jbyteArray, jobject);
+
+/*
+ * Class:     org_sqlite_jni_fts5_Fts5ExtensionApi
+ * Method:    xUserData
+ * Signature: (Lorg/sqlite/jni/fts5/Fts5Context;)Ljava/lang/Object;
+ */
+JNIEXPORT jobject JNICALL Java_org_sqlite_jni_fts5_Fts5ExtensionApi_xUserData
+  (JNIEnv *, jobject, jobject);
+
+#ifdef __cplusplus
+}
+#endif
+#endif
+/* DO NOT EDIT THIS FILE - it is machine generated */
+#include <jni.h>
+/* Header for class org_sqlite_jni_fts5_fts5_api */
+
+#ifndef _Included_org_sqlite_jni_fts5_fts5_api
+#define _Included_org_sqlite_jni_fts5_fts5_api
+#ifdef __cplusplus
+extern "C" {
+#endif
+#undef org_sqlite_jni_fts5_fts5_api_iVersion
+#define org_sqlite_jni_fts5_fts5_api_iVersion 2L
+/*
+ * Class:     org_sqlite_jni_fts5_fts5_api
+ * Method:    getInstanceForDb
+ * Signature: (Lorg/sqlite/jni/capi/sqlite3;)Lorg/sqlite/jni/fts5/fts5_api;
+ */
+JNIEXPORT jobject JNICALL Java_org_sqlite_jni_fts5_fts5_1api_getInstanceForDb
+  (JNIEnv *, jclass, jobject);
+
+/*
+ * Class:     org_sqlite_jni_fts5_fts5_api
+ * Method:    xCreateFunction
+ * Signature: (Ljava/lang/String;Ljava/lang/Object;Lorg/sqlite/jni/fts5/fts5_extension_function;)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_fts5_fts5_1api_xCreateFunction
+  (JNIEnv *, jobject, jstring, jobject, jobject);
+
+#ifdef __cplusplus
+}
+#endif
+#endif
+/* DO NOT EDIT THIS FILE - it is machine generated */
+#include <jni.h>
+/* Header for class org_sqlite_jni_fts5_fts5_tokenizer */
+
+#ifndef _Included_org_sqlite_jni_fts5_fts5_tokenizer
+#define _Included_org_sqlite_jni_fts5_fts5_tokenizer
+#ifdef __cplusplus
+extern "C" {
+#endif
+/*
+ * Class:     org_sqlite_jni_fts5_fts5_tokenizer
+ * Method:    xTokenize
+ * Signature: (Lorg/sqlite/jni/fts5/Fts5Tokenizer;I[BLorg/sqlite/jni/fts5/XTokenizeCallback;)I
+ */
+JNIEXPORT jint JNICALL Java_org_sqlite_jni_fts5_fts5_1tokenizer_xTokenize
+  (JNIEnv *, jobject, jobject, jint, jbyteArray, jobject);
+
+#ifdef __cplusplus
+}
+#endif
+#endif
diff --git a/ext/jni/src/org/sqlite/jni/annotation/Experimental.java b/ext/jni/src/org/sqlite/jni/annotation/Experimental.java
new file mode 100644
index 0000000000000000000000000000000000000000..190435c8582855ae880b4bb8c3ee450792747670
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/annotation/Experimental.java
@@ -0,0 +1,30 @@
+/*
+** 2023-09-27
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file houses the Experimental annotation for the sqlite3 C API.
+*/
+package org.sqlite.jni.annotation;
+import java.lang.annotation.*;
+
+/**
+   This annotation is for flagging methods, constructors, and types
+   which are expressly experimental and subject to any amount of
+   change or outright removal. Client code should not rely on such
+   features.
+*/
+@Documented
+@Retention(RetentionPolicy.SOURCE)
+@Target({
+    ElementType.METHOD,
+    ElementType.CONSTRUCTOR,
+    ElementType.TYPE
+})
+public @interface Experimental{}
diff --git a/ext/jni/src/org/sqlite/jni/annotation/NotNull.java b/ext/jni/src/org/sqlite/jni/annotation/NotNull.java
new file mode 100644
index 0000000000000000000000000000000000000000..0c31782f236fa79963001d27aa3c844957a05ce9
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/annotation/NotNull.java
@@ -0,0 +1,71 @@
+/*
+** 2023-09-27
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file houses the NotNull annotation for the sqlite3 C API.
+*/
+package org.sqlite.jni.annotation;
+import java.lang.annotation.*;
+
+/**
+   This annotation is for flagging parameters which may not legally be
+   null or point to closed/finalized C-side resources.
+
+   <p>In the case of Java types which map directly to C struct types
+   (e.g. {@link org.sqlite.jni.capi.sqlite3}, {@link
+   org.sqlite.jni.capi.sqlite3_stmt}, and {@link
+   org.sqlite.jni.capi.sqlite3_context}), a closed/finalized resource
+   is also considered to be null for purposes this annotation because
+   the C-side effect of passing such a handle is the same as if null
+   is passed.</p>
+
+   <p>When used in the context of Java interfaces which are called
+   from the C APIs, this annotation communicates that the C API will
+   never pass a null value to the callback for that parameter.</p>
+
+   <p>Passing a null, for this annotation's definition of null, for
+   any parameter marked with this annoation specifically invokes
+   undefined behavior (see below).</p>
+
+   <p>Passing 0 (i.e. C NULL) or a negative value for any long-type
+   parameter marked with this annoation specifically invokes undefined
+   behavior (see below). Such values are treated as C pointers in the
+   JNI layer.</p>
+
+   <p><b>Undefined behaviour:</b> the JNI build uses the {@code
+   SQLITE_ENABLE_API_ARMOR} build flag, meaning that the C code
+   invoked with invalid NULL pointers and the like will not invoke
+   undefined behavior in the conventional C sense, but may, for
+   example, return result codes which are not documented for the
+   affected APIs or may otherwise behave unpredictably. In no known
+   cases will such arguments result in C-level code dereferencing a
+   NULL pointer or accessing out-of-bounds (or otherwise invalid)
+   memory. In other words, they may cause unexpected behavior but
+   should never cause an outright crash or security issue.</p>
+
+   <p>Note that the C-style API does not throw any exceptions on its
+   own because it has a no-throw policy in order to retain its C-style
+   semantics, but it may trigger NullPointerExceptions (or similar) if
+   passed a null for a parameter flagged with this annotation.</p>
+
+   <p>This annotation is informational only. No policy is in place to
+   programmatically ensure that NotNull is conformed to in client
+   code.</p>
+
+   <p>This annotation is solely for the use by the classes in the
+   org.sqlite.jni package and subpackages, but is made public so that
+   javadoc will link to it from the annotated functions. It is not
+   part of the public API and client-level code must not rely on
+   it.</p>
+*/
+@Documented
+@Retention(RetentionPolicy.SOURCE)
+@Target(ElementType.PARAMETER)
+public @interface NotNull{}
diff --git a/ext/jni/src/org/sqlite/jni/annotation/Nullable.java b/ext/jni/src/org/sqlite/jni/annotation/Nullable.java
new file mode 100644
index 0000000000000000000000000000000000000000..e3fa30efc9b536a1973e10b1f321ca72130a0d20
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/annotation/Nullable.java
@@ -0,0 +1,33 @@
+/*
+** 2023-09-27
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file houses the Nullable annotation for the sqlite3 C API.
+*/
+package org.sqlite.jni.annotation;
+import java.lang.annotation.*;
+
+/**
+   This annotation is for flagging parameters which may legally be
+   null, noting that they may behave differently if passed null but
+   are prepared to expect null as a value. When used in the context of
+   callback methods which are called into from the C APIs, this
+   annotation communicates that the C API may pass a null value to the
+   callback.
+
+   <p>This annotation is solely for the use by the classes in this
+   package but is made public so that javadoc will link to it from the
+   annotated functions. It is not part of the public API and
+   client-level code must not rely on it.
+*/
+@Documented
+@Retention(RetentionPolicy.SOURCE)
+@Target(ElementType.PARAMETER)
+public @interface Nullable{}
diff --git a/ext/jni/src/org/sqlite/jni/annotation/package-info.java b/ext/jni/src/org/sqlite/jni/annotation/package-info.java
new file mode 100644
index 0000000000000000000000000000000000000000..20ac7a3017e4bd12e8d3536e9c61e233d74d2ff3
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/annotation/package-info.java
@@ -0,0 +1,17 @@
+/*
+** 2023-09-27
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+*/
+/**
+   This package houses annotations specific to the JNI bindings of the
+   SQLite3 C API.
+*/
+package org.sqlite.jni.annotation;
diff --git a/ext/jni/src/org/sqlite/jni/capi/AbstractCollationCallback.java b/ext/jni/src/org/sqlite/jni/capi/AbstractCollationCallback.java
new file mode 100644
index 0000000000000000000000000000000000000000..925536636ebff95349442752f4f05c4b8c90b544
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/capi/AbstractCollationCallback.java
@@ -0,0 +1,34 @@
+/*
+** 2023-08-25
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the JNI bindings for the sqlite3 C API.
+*/
+package org.sqlite.jni.capi;
+import org.sqlite.jni.annotation.NotNull;
+
+/**
+   An implementation of {@link CollationCallback} which provides a
+   no-op xDestroy() method.
+*/
+public abstract class AbstractCollationCallback
+  implements CollationCallback, XDestroyCallback {
+  /**
+     Must compare the given byte arrays and return the result using
+     {@code memcmp()} semantics.
+  */
+  public abstract int call(@NotNull byte[] lhs, @NotNull byte[] rhs);
+
+  /**
+     Optionally override to be notified when the UDF is finalized by
+     SQLite. This implementation does nothing.
+  */
+  public void xDestroy(){}
+}
diff --git a/ext/jni/src/org/sqlite/jni/capi/AggregateFunction.java b/ext/jni/src/org/sqlite/jni/capi/AggregateFunction.java
new file mode 100644
index 0000000000000000000000000000000000000000..1fa6c6b8051d15b863db0fb751bb7bed65c856e0
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/capi/AggregateFunction.java
@@ -0,0 +1,138 @@
+/*
+** 2023-08-25
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the JNI bindings for the sqlite3 C API.
+*/
+package org.sqlite.jni.capi;
+
+
+/**
+   A SQLFunction implementation for aggregate functions.  Its T is the
+   data type of its "accumulator" state, an instance of which is
+   intended to be be managed using the getAggregateState() and
+   takeAggregateState() methods.
+*/
+public abstract class AggregateFunction<T> implements SQLFunction {
+
+  /**
+     As for the xStep() argument of the C API's
+     sqlite3_create_function().  If this function throws, the
+     exception is not propagated and a warning might be emitted to a
+     debugging channel.
+  */
+  public abstract void xStep(sqlite3_context cx, sqlite3_value[] args);
+
+  /**
+     As for the xFinal() argument of the C API's sqlite3_create_function().
+     If this function throws, it is translated into an sqlite3_result_error().
+  */
+  public abstract void xFinal(sqlite3_context cx);
+
+  /**
+     Optionally override to be notified when the UDF is finalized by
+     SQLite.
+  */
+  public void xDestroy() {}
+
+  /**
+     PerContextState assists aggregate and window functions in
+     managing their accumulator state across calls to the UDF's
+     callbacks.
+
+     <p>T must be of a type which can be legally stored as a value in
+     java.util.HashMap<KeyType,T>.
+
+     <p>If a given aggregate or window function is called multiple times
+     in a single SQL statement, e.g. SELECT MYFUNC(A), MYFUNC(B)...,
+     then the clients need some way of knowing which call is which so
+     that they can map their state between their various UDF callbacks
+     and reset it via xFinal(). This class takes care of such
+     mappings.
+
+     <p>This class works by mapping
+     sqlite3_context.getAggregateContext() to a single piece of
+     state, of a client-defined type (the T part of this class), which
+     persists across a "matching set" of the UDF's callbacks.
+
+     <p>This class is a helper providing commonly-needed functionality
+     - it is not required for use with aggregate or window functions.
+     Client UDFs are free to perform such mappings using custom
+     approaches. The provided {@link AggregateFunction} and {@link
+     WindowFunction} classes use this.
+  */
+  public static final class PerContextState<T> {
+    private final java.util.Map<Long,ValueHolder<T>> map
+      = new java.util.HashMap<>();
+
+    /**
+       Should be called from a UDF's xStep(), xValue(), and xInverse()
+       methods, passing it that method's first argument and an initial
+       value for the persistent state. If there is currently no
+       mapping for the given context within the map, one is created
+       using the given initial value, else the existing one is used
+       and the 2nd argument is ignored.  It returns a ValueHolder<T>
+       which can be used to modify that state directly without
+       requiring that the client update the underlying map's entry.
+
+       <p>The caller is obligated to eventually call
+       takeAggregateState() to clear the mapping.
+    */
+    public ValueHolder<T> getAggregateState(sqlite3_context cx, T initialValue){
+      final Long key = cx.getAggregateContext(true);
+      ValueHolder<T> rc = null==key ? null : map.get(key);
+      if( null==rc ){
+        map.put(key, rc = new ValueHolder<>(initialValue));
+      }
+      return rc;
+    }
+
+    /**
+       Should be called from a UDF's xFinal() method and passed that
+       method's first argument. This function removes the value
+       associated with cx.getAggregateContext() from the map and
+       returns it, returning null if no other UDF method has been
+       called to set up such a mapping. The latter condition will be
+       the case if a UDF is used in a statement which has no result
+       rows.
+    */
+    public T takeAggregateState(sqlite3_context cx){
+      final ValueHolder<T> h = map.remove(cx.getAggregateContext(false));
+      return null==h ? null : h.value;
+    }
+  }
+
+  /** Per-invocation state for the UDF. */
+  private final PerContextState<T> map = new PerContextState<>();
+
+  /**
+     To be called from the implementation's xStep() method, as well
+     as the xValue() and xInverse() methods of the {@link WindowFunction}
+     subclass, to fetch the current per-call UDF state. On the
+     first call to this method for any given sqlite3_context
+     argument, the context is set to the given initial value. On all other
+     calls, the 2nd argument is ignored.
+
+     @see SQLFunction.PerContextState#getAggregateState
+  */
+  protected final ValueHolder<T> getAggregateState(sqlite3_context cx, T initialValue){
+    return map.getAggregateState(cx, initialValue);
+  }
+
+  /**
+     To be called from the implementation's xFinal() method to fetch
+     the final state of the UDF and remove its mapping.
+
+     see SQLFunction.PerContextState#takeAggregateState
+  */
+  protected final T takeAggregateState(sqlite3_context cx){
+    return map.takeAggregateState(cx);
+  }
+}
diff --git a/ext/jni/src/org/sqlite/jni/capi/AuthorizerCallback.java b/ext/jni/src/org/sqlite/jni/capi/AuthorizerCallback.java
new file mode 100644
index 0000000000000000000000000000000000000000..298e3a59002fadd47e485c623697410758e72b6f
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/capi/AuthorizerCallback.java
@@ -0,0 +1,29 @@
+/*
+** 2023-08-25
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the JNI bindings for the sqlite3 C API.
+*/
+package org.sqlite.jni.capi;
+import org.sqlite.jni.annotation.*;
+
+/**
+   Callback for use with {@link CApi#sqlite3_set_authorizer}.
+*/
+public interface AuthorizerCallback extends CallbackProxy {
+  /**
+     Must function as described for the C-level
+     sqlite3_set_authorizer() callback. If it throws, the error is
+     converted to a db-level error and the exception is suppressed.
+  */
+  int call(int opId, @Nullable String s1, @Nullable String s2,
+           @Nullable String s3, @Nullable String s4);
+
+}
diff --git a/ext/jni/src/org/sqlite/jni/capi/AutoExtensionCallback.java b/ext/jni/src/org/sqlite/jni/capi/AutoExtensionCallback.java
new file mode 100644
index 0000000000000000000000000000000000000000..7a54132d2941ba2d47f98018e2f4774f89b6d061
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/capi/AutoExtensionCallback.java
@@ -0,0 +1,40 @@
+/*
+** 2023-08-25
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the JNI bindings for the sqlite3 C API.
+*/
+package org.sqlite.jni.capi;
+
+/**
+   Callback for use with the {@link CApi#sqlite3_auto_extension}
+   family of APIs.
+*/
+public interface AutoExtensionCallback extends CallbackProxy {
+  /**
+     Must function as described for a C-level
+     sqlite3_auto_extension() callback.
+
+     <p>This callback may throw and the exception's error message will
+     be set as the db's error string.
+
+     <p>Tips for implementations:
+
+     <p>- Opening a database from an auto-extension handler will lead to
+     an endless recursion of the auto-handler triggering itself
+     indirectly for each newly-opened database.
+
+     <p>- If this routine is stateful, it may be useful to make the
+     overridden method synchronized.
+
+     <p>- Results are undefined if the given db is closed by an auto-extension.
+  */
+  int call(sqlite3 db);
+}
diff --git a/ext/jni/src/org/sqlite/jni/capi/BusyHandlerCallback.java b/ext/jni/src/org/sqlite/jni/capi/BusyHandlerCallback.java
new file mode 100644
index 0000000000000000000000000000000000000000..00223f0b66895c2bd6cee8d65676b4e6b01b01d2
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/capi/BusyHandlerCallback.java
@@ -0,0 +1,26 @@
+/*
+** 2023-08-25
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the JNI bindings for the sqlite3 C API.
+*/
+package org.sqlite.jni.capi;
+
+/**
+   Callback for use with {@link CApi#sqlite3_busy_handler}.
+*/
+public interface BusyHandlerCallback extends CallbackProxy {
+  /**
+     Must function as documented for the C-level
+     sqlite3_busy_handler() callback argument, minus the (void*)
+     argument the C-level function requires.
+  */
+  int call(int n);
+}
diff --git a/ext/jni/src/org/sqlite/jni/capi/CApi.java b/ext/jni/src/org/sqlite/jni/capi/CApi.java
new file mode 100644
index 0000000000000000000000000000000000000000..b5d08306e269bd47a0a380a59faf3b0e82560877
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/capi/CApi.java
@@ -0,0 +1,2897 @@
+/*
+** 2023-07-21
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file declares the main JNI bindings for the sqlite3 C API.
+*/
+package org.sqlite.jni.capi;
+import java.nio.charset.StandardCharsets;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+import java.lang.annotation.Documented;
+import java.lang.annotation.ElementType;
+import org.sqlite.jni.annotation.*;
+import java.util.Arrays;
+
+/**
+  This class contains the entire C-style sqlite3 JNI API binding,
+  minus a few bits and pieces declared in other files. For client-side
+  use, a static import is recommended:
+
+  <pre>{@code
+  import static org.sqlite.jni.capi.CApi.*;
+  }</pre>
+
+  <p>The C-side part can be found in sqlite3-jni.c.
+
+  <p>Only functions which materially differ from their C counterparts
+  are documented here, and only those material differences are
+  documented. The C documentation is otherwise applicable for these
+  APIs:
+
+  <p><a href="https://sqlite.org/c3ref/intro.html">https://sqlite.org/c3ref/intro.html</a>
+
+  <p>A handful of Java-specific APIs have been added which are
+  documented here. A number of convenience overloads are provided
+  which are not documented but whose semantics map 1-to-1 in an
+  intuitive manner. e.g. {@link
+  #sqlite3_result_set(sqlite3_context,int)} is equivalent to {@link
+  #sqlite3_result_int}, and sqlite3_result_set() has many
+  type-specific overloads.
+
+  <p>Notes regarding Java's Modified UTF-8 vs standard UTF-8:
+
+  <p>SQLite internally uses UTF-8 encoding, whereas Java natively uses
+  UTF-16.  Java JNI has routines for converting to and from UTF-8,
+  but JNI uses what its docs call modified UTF-8 (see links below)
+  Care must be taken when converting Java strings to or from standard
+  UTF-8 to ensure that the proper conversion is performed. In short,
+  Java's {@code String.getBytes(StandardCharsets.UTF_8)} performs the proper
+  conversion in Java, and there are no JNI C APIs for that conversion
+  (JNI's {@code NewStringUTF()} requires its input to be in MUTF-8).
+
+  <p>The known consequences and limitations this discrepancy places on
+  the SQLite3 JNI binding include:
+
+  <ul>
+
+  <li>C functions which take C-style strings without a length argument
+  require special care when taking input from Java. In particular,
+  Java strings converted to byte arrays for encoding purposes are not
+  NUL-terminated, and conversion to a Java byte array must sometimes
+  be careful to add one. Functions which take a length do not require
+  this so long as the length is provided. Search the CApi class
+  for "\0" for examples.
+
+  </ul>
+
+  <p>Further reading:
+
+  <p><a href="https://stackoverflow.com/questions/57419723">https://stackoverflow.com/questions/57419723</a>
+  <p><a href="https://stackoverflow.com/questions/7921016">https://stackoverflow.com/questions/7921016</a>
+  <p><a href="https://itecnote.com/tecnote/java-getting-true-utf-8-characters-in-java-jni/">https://itecnote.com/tecnote/java-getting-true-utf-8-characters-in-java-jni/</a>
+  <p><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Character.html#unicode">https://docs.oracle.com/javase/8/docs/api/java/lang/Character.html#unicode</a>
+  <p><a href="https://docs.oracle.com/javase/8/docs/api/java/io/DataInput.html#modified-utf-8">https://docs.oracle.com/javase/8/docs/api/java/io/DataInput.html#modified-utf-8</a>
+
+*/
+public final class CApi {
+  static {
+    System.loadLibrary("sqlite3-jni");
+  }
+  //! Not used
+  private CApi(){}
+  //! Called from static init code.
+  private static native void init();
+
+  /**
+     Returns a nul-terminated copy of s as a UTF-8-encoded byte array,
+     or null if s is null.
+  */
+  private static byte[] nulTerminateUtf8(String s){
+    return null==s ? null : (s+"\0").getBytes(StandardCharsets.UTF_8);
+  }
+
+  /**
+     Each thread which uses the SQLite3 JNI APIs should call
+     sqlite3_jni_uncache_thread() when it is done with the library -
+     either right before it terminates or when it finishes using the
+     SQLite API.  This will clean up any cached per-thread info.
+
+     <p>This process does not close any databases or finalize
+     any prepared statements because their ownership does not depend on
+     a given thread.  For proper library behavior, and to
+     avoid C-side leaks, be sure to finalize all statements and close
+     all databases before calling this function.
+
+     <p>Calling this from the main application thread is not strictly
+     required. Additional threads must call this before ending or they
+     will leak cache entries in the C heap, which in turn may keep
+     numerous Java-side global references active.
+
+     <p>This routine returns false without side effects if the current
+     JNIEnv is not cached, else returns true, but this information is
+     primarily for testing of the JNI bindings and is not information
+     which client-level code can use to make any informed
+     decisions. Its return type and semantics are not considered
+     stable and may change at any time.
+  */
+  public static native boolean sqlite3_java_uncache_thread();
+
+  /**
+     Returns true if this JVM has JNI-level support for C-level direct
+     memory access using java.nio.ByteBuffer, else returns false.
+  */
+  @Experimental
+  public static native boolean sqlite3_jni_supports_nio();
+
+  /**
+     For internal use only. Sets the given db's error code and
+     (optionally) string. If rc is 0, it defaults to SQLITE_ERROR.
+
+     On success it returns rc. On error it may return a more serious
+     code, such as SQLITE_NOMEM. Returns SQLITE_MISUSE if db is null.
+  */
+  static native int sqlite3_jni_db_error(@NotNull sqlite3 db,
+                                         int rc, @Nullable String msg);
+
+  /**
+     Convenience overload which uses e.toString() as the error
+     message.
+  */
+  static int sqlite3_jni_db_error(@NotNull sqlite3 db,
+                                  int rc, @NotNull Exception e){
+    return sqlite3_jni_db_error(db, rc, e.toString());
+  }
+
+  //////////////////////////////////////////////////////////////////////
+  // Maintenance reminder: please keep the sqlite3_.... functions
+  // alphabetized.  The SQLITE_... values. on the other hand, are
+  // grouped by category.
+
+  /**
+     Functions exactly like the native form except that (A) the 2nd
+     argument is a boolean instead of an int and (B) the returned
+     value is not a pointer address and is only intended for use as a
+     per-UDF-call lookup key in a higher-level data structure.
+
+     <p>Passing a true second argument is analogous to passing some
+     unspecified small, non-0 positive value to the C API and passing
+     false is equivalent to passing 0 to the C API.
+
+     <p>Like the C API, it returns 0 if allocation fails or if
+     initialize is false and no prior aggregate context was allocated
+     for cx.  If initialize is true then it returns 0 only on
+     allocation error. In all casses, 0 is considered the sentinel
+     "not a key" value.
+  */
+  public static native long sqlite3_aggregate_context(sqlite3_context cx, boolean initialize);
+
+  /**
+     Functions almost as documented for the C API, with these
+     exceptions:
+
+     <p>- The callback interface is shorter because of
+     cross-language differences. Specifically, 3rd argument to the C
+     auto-extension callback interface is unnecessary here.
+
+     <p>The C API docs do not specifically say so, but if the list of
+     auto-extensions is manipulated from an auto-extension, it is
+     undefined which, if any, auto-extensions will subsequently
+     execute for the current database. That is, doing so will result
+     in unpredictable, but not undefined, behavior.
+
+     <p>See the AutoExtension class docs for more information.
+  */
+  public static native int sqlite3_auto_extension(@NotNull AutoExtensionCallback callback);
+
+  private static native int sqlite3_backup_finish(@NotNull long ptrToBackup);
+
+  public static int sqlite3_backup_finish(@NotNull sqlite3_backup b){
+    return null==b ? 0 : sqlite3_backup_finish(b.clearNativePointer());
+  }
+
+  private static native sqlite3_backup sqlite3_backup_init(
+    @NotNull long ptrToDbDest, @NotNull String destTableName,
+    @NotNull long ptrToDbSrc, @NotNull String srcTableName
+  );
+
+  public static sqlite3_backup sqlite3_backup_init(
+    @NotNull sqlite3 dbDest, @NotNull String destTableName,
+    @NotNull sqlite3 dbSrc, @NotNull String srcTableName
+  ){
+    return sqlite3_backup_init( dbDest.getNativePointer(), destTableName,
+                                dbSrc.getNativePointer(), srcTableName );
+  }
+
+  private static native int sqlite3_backup_pagecount(@NotNull long ptrToBackup);
+
+  public static int sqlite3_backup_pagecount(@NotNull sqlite3_backup b){
+    return sqlite3_backup_pagecount(b.getNativePointer());
+  }
+
+  private static native int sqlite3_backup_remaining(@NotNull long ptrToBackup);
+
+  public static int sqlite3_backup_remaining(@NotNull sqlite3_backup b){
+    return sqlite3_backup_remaining(b.getNativePointer());
+  }
+
+  private static native int sqlite3_backup_step(@NotNull long ptrToBackup, int nPage);
+
+  public static int sqlite3_backup_step(@NotNull sqlite3_backup b, int nPage){
+    return sqlite3_backup_step(b.getNativePointer(), nPage);
+  }
+
+  private static native int sqlite3_bind_blob(
+    @NotNull long ptrToStmt, int ndx, @Nullable byte[] data, int n
+  );
+
+  /**
+     If n is negative, SQLITE_MISUSE is returned. If n>data.length
+     then n is silently truncated to data.length.
+  */
+  public static int sqlite3_bind_blob(
+    @NotNull sqlite3_stmt stmt, int ndx, @Nullable byte[] data, int n
+  ){
+    return sqlite3_bind_blob(stmt.getNativePointer(), ndx, data, n);
+  }
+
+  public static int sqlite3_bind_blob(
+    @NotNull sqlite3_stmt stmt, int ndx, @Nullable byte[] data
+  ){
+    return (null==data)
+      ? sqlite3_bind_null(stmt.getNativePointer(), ndx)
+      : sqlite3_bind_blob(stmt.getNativePointer(), ndx, data, data.length);
+  }
+
+  /**
+     Convenience overload which is a simple proxy for
+     sqlite3_bind_nio_buffer().
+  */
+  @Experimental
+  /*public*/ static int sqlite3_bind_blob(
+    @NotNull sqlite3_stmt stmt, int ndx, @Nullable java.nio.ByteBuffer data,
+    int begin, int n
+  ){
+    return sqlite3_bind_nio_buffer(stmt, ndx, data, begin, n);
+  }
+
+  /**
+     Convenience overload which is equivalant to passing its arguments
+     to sqlite3_bind_nio_buffer() with the values 0 and -1 for the
+     final two arguments.
+  */
+  @Experimental
+  /*public*/ static int sqlite3_bind_blob(
+    @NotNull sqlite3_stmt stmt, int ndx, @Nullable java.nio.ByteBuffer data
+  ){
+    return sqlite3_bind_nio_buffer(stmt, ndx, data, 0, -1);
+  }
+
+  private static native int sqlite3_bind_double(
+    @NotNull long ptrToStmt, int ndx, double v
+  );
+
+  public static int sqlite3_bind_double(
+    @NotNull sqlite3_stmt stmt, int ndx, double v
+  ){
+    return sqlite3_bind_double(stmt.getNativePointer(), ndx, v);
+  }
+
+  private static native int sqlite3_bind_int(
+    @NotNull long ptrToStmt, int ndx, int v
+  );
+
+  public static int sqlite3_bind_int(
+    @NotNull sqlite3_stmt stmt, int ndx, int v
+  ){
+    return sqlite3_bind_int(stmt.getNativePointer(), ndx, v);
+  }
+
+  private static native int sqlite3_bind_int64(
+    @NotNull long ptrToStmt, int ndx, long v
+  );
+
+  public static int sqlite3_bind_int64(@NotNull sqlite3_stmt stmt, int ndx, long v){
+    return sqlite3_bind_int64( stmt.getNativePointer(), ndx, v );
+  }
+
+  private static native int sqlite3_bind_java_object(
+    @NotNull long ptrToStmt, int ndx, @Nullable Object o
+  );
+
+  /**
+     Binds the contents of the given buffer object as a blob.
+
+     The byte range of the buffer may be restricted by providing a
+     start index and a number of bytes. beginPos may not be negative.
+     Negative howMany is interpretated as the remainder of the buffer
+     past the given start position, up to the buffer's limit() (as
+     opposed its capacity()).
+
+     If beginPos+howMany would extend past the limit() of the buffer
+     then SQLITE_ERROR is returned.
+
+     If any of the following are true, this function behaves like
+     sqlite3_bind_null(): the buffer is null, beginPos is at or past
+     the end of the buffer, howMany is 0, or the calculated slice of
+     the blob has a length of 0.
+
+     If ndx is out of range, it returns SQLITE_RANGE, as documented
+     for sqlite3_bind_blob().  If beginPos is negative or if
+     sqlite3_jni_supports_nio() returns false then SQLITE_MISUSE is
+     returned.  Note that this function is bound (as it were) by the
+     SQLITE_LIMIT_LENGTH constraint and SQLITE_TOOBIG is returned if
+     the resulting slice of the buffer exceeds that limit.
+
+     This function does not modify the buffer's streaming-related
+     cursors.
+
+     If the buffer is modified in a separate thread while this
+     operation is running, results are undefined and will likely
+     result in corruption of the bound data or a segmentation fault.
+
+     Design note: this function should arguably take a java.nio.Buffer
+     instead of ByteBuffer, but it can only operate on "direct"
+     buffers and the only such class offered by Java is (apparently)
+     ByteBuffer.
+
+     @see https://docs.oracle.com/javase/8/docs/api/java/nio/Buffer.html
+  */
+  @Experimental
+  /*public*/ static native int sqlite3_bind_nio_buffer(
+    @NotNull sqlite3_stmt stmt, int ndx, @Nullable java.nio.ByteBuffer data,
+    int beginPos, int howMany
+  );
+
+  /**
+     Convenience overload which binds the given buffer's entire
+     contents, up to its limit() (as opposed to its capacity()).
+  */
+  @Experimental
+  /*public*/ static int sqlite3_bind_nio_buffer(
+    @NotNull sqlite3_stmt stmt, int ndx, @Nullable java.nio.ByteBuffer data
+  ){
+    return sqlite3_bind_nio_buffer(stmt, ndx, data, 0, -1);
+  }
+
+  /**
+     Binds the given object at the given index. If o is null then this behaves like
+     sqlite3_bind_null().
+
+     @see #sqlite3_result_java_object
+  */
+  public static int sqlite3_bind_java_object(
+    @NotNull sqlite3_stmt stmt, int ndx, @Nullable Object o
+  ){
+    return sqlite3_bind_java_object(stmt.getNativePointer(), ndx, o);
+  }
+
+  private static native int sqlite3_bind_null(@NotNull long ptrToStmt, int ndx);
+
+  public static int sqlite3_bind_null(@NotNull sqlite3_stmt stmt, int ndx){
+    return sqlite3_bind_null(stmt.getNativePointer(), ndx);
+  }
+
+  private static native int sqlite3_bind_parameter_count(@NotNull long ptrToStmt);
+
+  public static int sqlite3_bind_parameter_count(@NotNull sqlite3_stmt stmt){
+    return sqlite3_bind_parameter_count(stmt.getNativePointer());
+  }
+
+  /**
+     Requires that paramName be a NUL-terminated UTF-8 string.
+
+     This overload is private because: (A) to keep users from
+     inadvertently passing non-NUL-terminated byte arrays (an easy
+     thing to do). (B) it is cheaper to NUL-terminate the
+     String-to-byte-array conversion in the public-facing Java-side
+     overload than to do that in C, so that signature is the
+     public-facing one.
+  */
+  private static native int sqlite3_bind_parameter_index(
+    @NotNull long ptrToStmt, @NotNull byte[] paramName
+  );
+
+  public static int sqlite3_bind_parameter_index(
+    @NotNull sqlite3_stmt stmt, @NotNull String paramName
+  ){
+    final byte[] utf8 = nulTerminateUtf8(paramName);
+    return null==utf8 ? 0 : sqlite3_bind_parameter_index(stmt.getNativePointer(), utf8);
+  }
+
+  private static native String sqlite3_bind_parameter_name(
+    @NotNull long ptrToStmt, int index
+  );
+
+  public static String sqlite3_bind_parameter_name(@NotNull sqlite3_stmt stmt, int index){
+    return sqlite3_bind_parameter_name(stmt.getNativePointer(), index);
+  }
+
+  private static native int sqlite3_bind_text(
+    @NotNull long ptrToStmt, int ndx, @Nullable byte[] utf8, int maxBytes
+  );
+
+  /**
+     Works like the C-level sqlite3_bind_text() but assumes
+     SQLITE_TRANSIENT for the final C API parameter. The byte array is
+     assumed to be in UTF-8 encoding.
+
+     <p>If data is not null and maxBytes>utf8.length then maxBytes is
+     silently truncated to utf8.length. If maxBytes is negative then
+     results are undefined if data is not null and does not contain a
+     NUL byte.
+  */
+  static int sqlite3_bind_text(
+    @NotNull sqlite3_stmt stmt, int ndx, @Nullable byte[] utf8, int maxBytes
+  ){
+    return sqlite3_bind_text(stmt.getNativePointer(), ndx, utf8, maxBytes);
+  }
+
+  /**
+     Converts data, if not null, to a UTF-8-encoded byte array and
+     binds it as such, returning the result of the C-level
+     sqlite3_bind_null() or sqlite3_bind_text().
+  */
+  public static int sqlite3_bind_text(
+    @NotNull sqlite3_stmt stmt, int ndx, @Nullable String data
+  ){
+    if( null==data ) return sqlite3_bind_null(stmt.getNativePointer(), ndx);
+    final byte[] utf8 = data.getBytes(StandardCharsets.UTF_8);
+    return sqlite3_bind_text(stmt.getNativePointer(), ndx, utf8, utf8.length);
+  }
+
+  /**
+     Requires that utf8 be null or in UTF-8 encoding.
+  */
+  public static int sqlite3_bind_text(
+    @NotNull sqlite3_stmt stmt, int ndx, @Nullable byte[] utf8
+  ){
+    return ( null==utf8 )
+      ? sqlite3_bind_null(stmt.getNativePointer(), ndx)
+      : sqlite3_bind_text(stmt.getNativePointer(), ndx, utf8, utf8.length);
+  }
+
+  private static native int sqlite3_bind_text16(
+    @NotNull long ptrToStmt, int ndx, @Nullable byte[] data, int maxBytes
+  );
+
+  /**
+     Identical to the sqlite3_bind_text() overload with the same
+     signature but requires that its input be encoded in UTF-16 in
+     platform byte order.
+  */
+  static int sqlite3_bind_text16(
+    @NotNull sqlite3_stmt stmt, int ndx, @Nullable byte[] data, int maxBytes
+  ){
+    return sqlite3_bind_text16(stmt.getNativePointer(), ndx, data, maxBytes);
+  }
+
+  /**
+     Converts its string argument to UTF-16 and binds it as such, returning
+     the result of the C-side function of the same name. The 3rd argument
+     may be null.
+  */
+  public static int sqlite3_bind_text16(
+    @NotNull sqlite3_stmt stmt, int ndx, @Nullable String data
+  ){
+    if(null == data) return sqlite3_bind_null(stmt, ndx);
+    final byte[] bytes = data.getBytes(StandardCharsets.UTF_16);
+    return sqlite3_bind_text16(stmt.getNativePointer(), ndx, bytes, bytes.length);
+  }
+
+  /**
+     Requires that data be null or in UTF-16 encoding in platform byte
+     order. Returns the result of the C-level sqlite3_bind_null() or
+     sqlite3_bind_text16().
+  */
+  public static int sqlite3_bind_text16(
+    @NotNull sqlite3_stmt stmt, int ndx, @Nullable byte[] data
+  ){
+    return (null == data)
+      ? sqlite3_bind_null(stmt.getNativePointer(), ndx)
+      : sqlite3_bind_text16(stmt.getNativePointer(), ndx, data, data.length);
+  }
+
+  private static native int sqlite3_bind_value(@NotNull long ptrToStmt, int ndx, long ptrToValue);
+
+  /**
+     Functions like the C-level sqlite3_bind_value(), or
+     sqlite3_bind_null() if val is null.
+  */
+  public static int sqlite3_bind_value(@NotNull sqlite3_stmt stmt, int ndx, sqlite3_value val){
+    return sqlite3_bind_value(stmt.getNativePointer(), ndx,
+                              null==val ? 0L : val.getNativePointer());
+  }
+
+  private static native int sqlite3_bind_zeroblob(@NotNull long ptrToStmt, int ndx, int n);
+
+  public static int sqlite3_bind_zeroblob(@NotNull sqlite3_stmt stmt, int ndx, int n){
+    return sqlite3_bind_zeroblob(stmt.getNativePointer(), ndx, n);
+  }
+
+  private static native int sqlite3_bind_zeroblob64(
+    @NotNull long ptrToStmt, int ndx, long n
+  );
+
+  public static int sqlite3_bind_zeroblob64(@NotNull sqlite3_stmt stmt, int ndx, long n){
+    return sqlite3_bind_zeroblob64(stmt.getNativePointer(), ndx, n);
+  }
+
+  private static native int sqlite3_blob_bytes(@NotNull long ptrToBlob);
+
+  public static int sqlite3_blob_bytes(@NotNull sqlite3_blob blob){
+    return sqlite3_blob_bytes(blob.getNativePointer());
+  }
+
+  private static native int sqlite3_blob_close(@Nullable long ptrToBlob);
+
+  public static int sqlite3_blob_close(@Nullable sqlite3_blob blob){
+    return null==blob ? 0 : sqlite3_blob_close(blob.clearNativePointer());
+  }
+
+  private static native int sqlite3_blob_open(
+    @NotNull long ptrToDb, @NotNull String dbName,
+    @NotNull String tableName, @NotNull String columnName,
+    long iRow, int flags, @NotNull OutputPointer.sqlite3_blob out
+  );
+
+  public static int sqlite3_blob_open(
+    @NotNull sqlite3 db, @NotNull String dbName,
+    @NotNull String tableName, @NotNull String columnName,
+    long iRow, int flags, @NotNull OutputPointer.sqlite3_blob out
+  ){
+    return sqlite3_blob_open(db.getNativePointer(), dbName, tableName,
+                             columnName, iRow, flags, out);
+  }
+
+  /**
+     Convenience overload.
+  */
+  public static sqlite3_blob sqlite3_blob_open(
+    @NotNull sqlite3 db, @NotNull String dbName,
+    @NotNull String tableName, @NotNull String columnName,
+    long iRow, int flags ){
+    final OutputPointer.sqlite3_blob out = new OutputPointer.sqlite3_blob();
+    sqlite3_blob_open(db.getNativePointer(), dbName, tableName, columnName,
+                      iRow, flags, out);
+    return out.take();
+  };
+
+  private static native int sqlite3_blob_read(
+    @NotNull long ptrToBlob, @NotNull byte[] target, int srcOffset
+  );
+
+  /**
+     As per C's sqlite3_blob_read(), but writes its output to the
+     given byte array. Note that the final argument is the offset of
+     the source buffer, not the target array.
+   */
+  public static int sqlite3_blob_read(
+    @NotNull sqlite3_blob src, @NotNull byte[] target, int srcOffset
+  ){
+    return sqlite3_blob_read(src.getNativePointer(), target, srcOffset);
+  }
+
+  /**
+     An internal level of indirection.
+  */
+  @Experimental
+  private static native int sqlite3_blob_read_nio_buffer(
+    @NotNull long ptrToBlob, int srcOffset,
+    @NotNull java.nio.ByteBuffer tgt, int tgtOffset, int howMany
+  );
+
+  /**
+     Reads howMany bytes from offset srcOffset of src into position
+     tgtOffset of tgt.
+
+     Returns SQLITE_MISUSE if src is null, tgt is null, or
+     sqlite3_jni_supports_nio() returns false. Returns SQLITE_ERROR if
+     howMany or either offset are negative.  If argument validation
+     succeeds, it returns the result of the underlying call to
+     sqlite3_blob_read() (0 on success).
+  */
+  @Experimental
+  /*public*/ static int sqlite3_blob_read_nio_buffer(
+    @NotNull sqlite3_blob src, int srcOffset,
+    @NotNull java.nio.ByteBuffer tgt, int tgtOffset, int howMany
+  ){
+    return (JNI_SUPPORTS_NIO && src!=null && tgt!=null)
+      ? sqlite3_blob_read_nio_buffer(
+        src.getNativePointer(), srcOffset, tgt, tgtOffset, howMany
+      )
+      : SQLITE_MISUSE;
+  }
+
+  /**
+     Convenience overload which reads howMany bytes from position
+     srcOffset of src and returns the result as a new ByteBuffer.
+
+     srcOffset may not be negative. If howMany is negative, it is
+     treated as all bytes following srcOffset.
+
+     Returns null if sqlite3_jni_supports_nio(), any arguments are
+     invalid, if the number of bytes to read is 0 or is larger than
+     the src blob, or the underlying call to sqlite3_blob_read() fails
+     for any reason.
+  */
+  @Experimental
+  /*public*/ static java.nio.ByteBuffer sqlite3_blob_read_nio_buffer(
+    @NotNull sqlite3_blob src, int srcOffset, int howMany
+  ){
+    if( !JNI_SUPPORTS_NIO || src==null ) return null;
+    else if( srcOffset<0 ) return null;
+    final int nB = sqlite3_blob_bytes(src);
+    if( srcOffset>=nB ) return null;
+    else if( howMany<0 ) howMany = nB - srcOffset;
+    if( srcOffset + howMany > nB ) return null;
+    final java.nio.ByteBuffer tgt =
+      java.nio.ByteBuffer.allocateDirect(howMany);
+    final int rc = sqlite3_blob_read_nio_buffer(
+      src.getNativePointer(), srcOffset, tgt, 0, howMany
+    );
+    return 0==rc ? tgt : null;
+  }
+
+  /**
+     Overload alias for sqlite3_blob_read_nio_buffer().
+  */
+  @Experimental
+  /*public*/ static int sqlite3_blob_read(
+    @NotNull sqlite3_blob src, int srcOffset,
+    @NotNull java.nio.ByteBuffer tgt,
+    int tgtOffset, int howMany
+  ){
+    return sqlite3_blob_read_nio_buffer(
+      src, srcOffset, tgt, tgtOffset, howMany
+    );
+  }
+
+  /**
+     Convenience overload which uses 0 for both src and tgt offsets
+     and reads a number of bytes equal to the smaller of
+     sqlite3_blob_bytes(src) and tgt.limit().
+
+     On success it sets tgt.limit() to the number of bytes read. On
+     error, tgt.limit() is not modified.
+
+     Returns 0 on success. Returns SQLITE_MISUSE is either argument is
+     null or sqlite3_jni_supports_nio() returns false. Else it returns
+     the result of the underlying call to sqlite3_blob_read().
+  */
+  @Experimental
+  /*public*/ static int sqlite3_blob_read(
+    @NotNull sqlite3_blob src,
+    @NotNull java.nio.ByteBuffer tgt
+  ){
+    if(!JNI_SUPPORTS_NIO || src==null || tgt==null) return SQLITE_MISUSE;
+    final int nSrc = sqlite3_blob_bytes(src);
+    final int nTgt = tgt.limit();
+    final int nRead = nTgt<nSrc ? nTgt : nSrc;
+    final int rc = sqlite3_blob_read_nio_buffer(
+      src.getNativePointer(), 0, tgt, 0, nRead
+    );
+    if( 0==rc && nTgt!=nRead ) tgt.limit( nRead );
+    return rc;
+  }
+
+  private static native int sqlite3_blob_reopen(
+    @NotNull long ptrToBlob, long newRowId
+  );
+
+  public static int sqlite3_blob_reopen(@NotNull sqlite3_blob b, long newRowId){
+    return sqlite3_blob_reopen(b.getNativePointer(), newRowId);
+  }
+
+  private static native int sqlite3_blob_write(
+    @NotNull long ptrToBlob, @NotNull byte[] bytes, int iOffset
+  );
+
+  public static int sqlite3_blob_write(
+    @NotNull sqlite3_blob b, @NotNull byte[] bytes, int iOffset
+  ){
+    return sqlite3_blob_write(b.getNativePointer(), bytes, iOffset);
+  }
+
+  /**
+     An internal level of indirection.
+  */
+  @Experimental
+  private static native int sqlite3_blob_write_nio_buffer(
+    @NotNull long ptrToBlob, int tgtOffset,
+    @NotNull java.nio.ByteBuffer src,
+    int srcOffset, int howMany
+  );
+
+  /**
+     Writes howMany bytes of memory from offset srcOffset of the src
+     buffer at position tgtOffset of b.
+
+     If howMany is negative then it's equivalent to the number of
+     bytes remaining starting at srcOffset.
+
+     Returns SQLITE_MISUSE if tgt is null or sqlite3_jni_supports_nio()
+     returns false.
+
+     Returns SQLITE_MISUSE if src is null or
+     sqlite3_jni_supports_nio() returns false. Returns SQLITE_ERROR if
+     either offset is negative.  If argument validation succeeds, it
+     returns the result of the underlying call to sqlite3_blob_read().
+  */
+  @Experimental
+  /*public*/ static int sqlite3_blob_write_nio_buffer(
+    @NotNull sqlite3_blob tgt, int tgtOffset,
+    @NotNull java.nio.ByteBuffer src,
+    int srcOffset, int howMany
+  ){
+    return sqlite3_blob_write_nio_buffer(
+      tgt.getNativePointer(), tgtOffset, src, srcOffset, howMany
+    );
+  }
+
+  /**
+     Overload alias for sqlite3_blob_write_nio_buffer().
+  */
+  @Experimental
+  public static int sqlite3_blob_write(
+    @NotNull sqlite3_blob tgt, int tgtOffset,
+    @NotNull java.nio.ByteBuffer src,
+    int srcOffset, int howMany
+  ){
+    return sqlite3_blob_write_nio_buffer(
+      tgt.getNativePointer(), tgtOffset, src, srcOffset, howMany
+    );
+  }
+
+  /**
+     Convenience overload which writes all of src to the given offset
+     of b.
+  */
+  @Experimental
+  /*public*/ static int sqlite3_blob_write(
+    @NotNull sqlite3_blob tgt, int tgtOffset,
+    @NotNull java.nio.ByteBuffer src
+  ){
+    return sqlite3_blob_write_nio_buffer(
+      tgt.getNativePointer(), tgtOffset, src, 0, -1
+    );
+  }
+
+  /**
+     Convenience overload which writes all of src to offset 0
+     of tgt.
+   */
+  @Experimental
+  /*public*/ static int sqlite3_blob_write(
+    @NotNull sqlite3_blob tgt,
+    @NotNull java.nio.ByteBuffer src
+  ){
+    return sqlite3_blob_write_nio_buffer(
+      tgt.getNativePointer(), 0, src, 0, -1
+    );
+  }
+
+  private static native int sqlite3_busy_handler(
+    @NotNull long ptrToDb, @Nullable BusyHandlerCallback handler
+  );
+
+  /**
+     As for the C-level function of the same name, with a
+     BusyHandlerCallback instance in place of a callback
+     function. Pass it a null handler to clear the busy handler.
+  */
+  public static int sqlite3_busy_handler(
+    @NotNull sqlite3 db, @Nullable BusyHandlerCallback handler
+  ){
+    return sqlite3_busy_handler(db.getNativePointer(), handler);
+  }
+
+  private static native int sqlite3_busy_timeout(@NotNull long ptrToDb, int ms);
+
+  public static int sqlite3_busy_timeout(@NotNull sqlite3 db, int ms){
+    return sqlite3_busy_timeout(db.getNativePointer(), ms);
+  }
+
+  public static native boolean sqlite3_cancel_auto_extension(
+    @NotNull AutoExtensionCallback ax
+  );
+
+  private static native int sqlite3_changes(@NotNull long ptrToDb);
+
+  public static int sqlite3_changes(@NotNull sqlite3 db){
+    return sqlite3_changes(db.getNativePointer());
+  }
+
+  private static native long sqlite3_changes64(@NotNull long ptrToDb);
+
+  public static long sqlite3_changes64(@NotNull sqlite3 db){
+    return sqlite3_changes64(db.getNativePointer());
+  }
+
+  private static native int sqlite3_clear_bindings(@NotNull long ptrToStmt);
+
+  public static int sqlite3_clear_bindings(@NotNull sqlite3_stmt stmt){
+    return sqlite3_clear_bindings(stmt.getNativePointer());
+  }
+
+  private static native int sqlite3_close(@Nullable long ptrToDb);
+
+  public static int sqlite3_close(@Nullable sqlite3 db){
+    return null==db ? 0 : sqlite3_close(db.clearNativePointer());
+  }
+
+  private static native int sqlite3_close_v2(@Nullable long ptrToDb);
+
+  public static int sqlite3_close_v2(@Nullable sqlite3 db){
+    return null==db ? 0 : sqlite3_close_v2(db.clearNativePointer());
+  }
+
+  public static native byte[] sqlite3_column_blob(
+    @NotNull sqlite3_stmt stmt, int ndx
+  );
+
+  private static native int sqlite3_column_bytes(@NotNull long ptrToStmt, int ndx);
+
+  public static int sqlite3_column_bytes(@NotNull sqlite3_stmt stmt, int ndx){
+    return sqlite3_column_bytes(stmt.getNativePointer(), ndx);
+  }
+
+  private static native int sqlite3_column_bytes16(@NotNull long ptrToStmt, int ndx);
+
+  public static int sqlite3_column_bytes16(@NotNull sqlite3_stmt stmt, int ndx){
+    return sqlite3_column_bytes16(stmt.getNativePointer(), ndx);
+  }
+
+  private static native int sqlite3_column_count(@NotNull long ptrToStmt);
+
+  public static int sqlite3_column_count(@NotNull sqlite3_stmt stmt){
+    return sqlite3_column_count(stmt.getNativePointer());
+  }
+
+  private static native String sqlite3_column_database_name(@NotNull long ptrToStmt, int ndx);
+
+  /**
+     Only available if built with SQLITE_ENABLE_COLUMN_METADATA.
+  */
+  public static String sqlite3_column_database_name(@NotNull sqlite3_stmt stmt, int ndx){
+    return sqlite3_column_database_name(stmt.getNativePointer(), ndx);
+  }
+
+  private static native String sqlite3_column_decltype(@NotNull long ptrToStmt, int ndx);
+
+  public static String sqlite3_column_decltype(@NotNull sqlite3_stmt stmt, int ndx){
+    return sqlite3_column_decltype(stmt.getNativePointer(), ndx);
+  }
+
+  public static native double sqlite3_column_double(
+    @NotNull sqlite3_stmt stmt, int ndx
+  );
+
+  public static native int sqlite3_column_int(
+    @NotNull sqlite3_stmt stmt, int ndx
+  );
+
+  public static native long sqlite3_column_int64(
+    @NotNull sqlite3_stmt stmt, int ndx
+  );
+
+  private static native Object sqlite3_column_java_object(
+    @NotNull long ptrToStmt, int ndx
+  );
+
+  /**
+     If the given result column was bound with
+     sqlite3_bind_java_object() or sqlite3_result_java_object() then
+     that object is returned, else null is returned. This routine
+     requires locking the owning database's mutex briefly in order to
+     extract the object in a thread-safe way.
+  */
+  public static Object sqlite3_column_java_object(
+    @NotNull sqlite3_stmt stmt, int ndx
+  ){
+    return sqlite3_column_java_object( stmt.getNativePointer(), ndx );
+  }
+
+  /**
+     If the two-parameter overload of sqlite3_column_java_object()
+     returns non-null and the returned value is an instance of T then
+     that object is returned, else null is returned.
+  */
+  @SuppressWarnings("unchecked")
+  public static <T> T sqlite3_column_java_object(
+    @NotNull sqlite3_stmt stmt, int ndx, @NotNull Class<T> type
+  ){
+    final Object o = sqlite3_column_java_object(stmt, ndx);
+    return type.isInstance(o) ? (T)o : null;
+  }
+
+  private static native String sqlite3_column_name(@NotNull long ptrToStmt, int ndx);
+
+  public static String sqlite3_column_name(@NotNull sqlite3_stmt stmt, int ndx){
+    return sqlite3_column_name(stmt.getNativePointer(), ndx);
+  }
+
+  /**
+     A variant of sqlite3_column_blob() which returns the blob as a
+     ByteBuffer object. Returns null if its argument is null, if
+     sqlite3_jni_supports_nio() is false, or if sqlite3_column_blob()
+     would return null for the same inputs.
+  */
+  @Experimental
+  /*public*/ static native java.nio.ByteBuffer sqlite3_column_nio_buffer(
+    @NotNull sqlite3_stmt stmt, int ndx
+  );
+
+  private static native String sqlite3_column_origin_name(@NotNull long ptrToStmt, int ndx);
+
+  /**
+     Only available if built with SQLITE_ENABLE_COLUMN_METADATA.
+  */
+  public static String sqlite3_column_origin_name(@NotNull sqlite3_stmt stmt, int ndx){
+    return sqlite3_column_origin_name(stmt.getNativePointer(), ndx);
+  }
+
+  private static native String sqlite3_column_table_name(@NotNull long ptrToStmt, int ndx);
+
+  /**
+     Only available if built with SQLITE_ENABLE_COLUMN_METADATA.
+  */
+  public static String sqlite3_column_table_name(@NotNull sqlite3_stmt stmt, int ndx){
+    return sqlite3_column_table_name(stmt.getNativePointer(), ndx);
+  }
+
+  /**
+     Functions identially to the C API, and this note is just to
+     stress that the returned bytes are encoded as UTF-8. It returns
+     null if the underlying C-level sqlite3_column_text() returns NULL
+     or on allocation error.
+
+     @see #sqlite3_column_text16(sqlite3_stmt,int)
+  */
+  public static native byte[] sqlite3_column_text(
+    @NotNull sqlite3_stmt stmt, int ndx
+  );
+
+  public static native String sqlite3_column_text16(
+    @NotNull sqlite3_stmt stmt, int ndx
+  );
+
+  // The real utility of this function is questionable.
+  // /**
+  //    Returns a Java value representation based on the value of
+  //    sqlite_value_type(). For integer types it returns either Integer
+  //    or Long, depending on whether the value will fit in an
+  //    Integer. For floating-point values it always returns type Double.
+
+  //    If the column was bound using sqlite3_result_java_object() then
+  //    that value, as an Object, is returned.
+  // */
+  // public static Object sqlite3_column_to_java(@NotNull sqlite3_stmt stmt,
+  //                                             int ndx){
+  //   sqlite3_value v = sqlite3_column_value(stmt, ndx);
+  //   Object rv = null;
+  //   if(null == v) return v;
+  //   v = sqlite3_value_dup(v)/*need a protected value*/;
+  //   if(null == v) return v /* OOM error in C */;
+  //   if(112/* 'p' */ == sqlite3_value_subtype(v)){
+  //     rv = sqlite3_value_java_object(v);
+  //   }else{
+  //     switch(sqlite3_value_type(v)){
+  //       case SQLITE_INTEGER: {
+  //         final long i = sqlite3_value_int64(v);
+  //         rv = (i<=0x7fffffff && i>=-0x7fffffff-1)
+  //           ? new Integer((int)i) : new Long(i);
+  //         break;
+  //       }
+  //       case SQLITE_FLOAT: rv = new Double(sqlite3_value_double(v)); break;
+  //       case SQLITE_BLOB: rv = sqlite3_value_blob(v); break;
+  //       case SQLITE_TEXT: rv = sqlite3_value_text16(v); break;
+  //       default: break;
+  //     }
+  //   }
+  //   sqlite3_value_free(v);
+  //   return rv;
+  // }
+
+  private static native int sqlite3_column_type(@NotNull long ptrToStmt, int ndx);
+
+  public static int sqlite3_column_type(@NotNull sqlite3_stmt stmt, int ndx){
+    return sqlite3_column_type(stmt.getNativePointer(), ndx);
+  }
+
+  public static native sqlite3_value sqlite3_column_value(
+    @NotNull sqlite3_stmt stmt, int ndx
+  );
+
+  private static native int sqlite3_collation_needed(
+    @NotNull long ptrToDb, @Nullable CollationNeededCallback callback
+  );
+
+  /**
+     This functions like C's sqlite3_collation_needed16() because
+     Java's string type is inherently compatible with that interface.
+  */
+  public static int sqlite3_collation_needed(
+    @NotNull sqlite3 db, @Nullable CollationNeededCallback callback
+  ){
+    return sqlite3_collation_needed(db.getNativePointer(), callback);
+  }
+
+  private static native CommitHookCallback sqlite3_commit_hook(
+    @NotNull long ptrToDb, @Nullable CommitHookCallback hook
+  );
+
+  public static CommitHookCallback sqlite3_commit_hook(
+    @NotNull sqlite3 db, @Nullable CommitHookCallback hook
+  ){
+    return sqlite3_commit_hook(db.getNativePointer(), hook);
+  }
+
+  public static native String sqlite3_compileoption_get(int n);
+
+  public static native boolean sqlite3_compileoption_used(String optName);
+
+  /**
+     This implementation is private because it's too easy to pass it
+     non-NUL-terminated byte arrays from client code.
+  */
+  private static native int sqlite3_complete(
+    @NotNull byte[] nulTerminatedUtf8Sql
+  );
+
+  /**
+     Unlike the C API, this returns SQLITE_MISUSE if its argument is
+     null (as opposed to invoking UB).
+  */
+  public static int sqlite3_complete(@NotNull String sql){
+    return sqlite3_complete( nulTerminateUtf8(sql) );
+  }
+
+  /**
+     Internal level of indirection for sqlite3_config(int).
+  */
+  private static native int sqlite3_config__enable(int op);
+
+  /**
+     Internal level of indirection for sqlite3_config(ConfigLogCallback).
+  */
+  private static native int sqlite3_config__CONFIG_LOG(
+    @Nullable ConfigLogCallback logger
+  );
+
+  /**
+     Internal level of indirection for sqlite3_config(ConfigSqlLogCallback).
+  */
+  private static native int sqlite3_config__SQLLOG(
+    @Nullable ConfigSqlLogCallback logger
+  );
+
+  /**
+     <p>Works like in the C API with the exception that it only supports
+     the following subset of configution flags:
+
+     <p>SQLITE_CONFIG_SINGLETHREAD
+     SQLITE_CONFIG_MULTITHREAD
+     SQLITE_CONFIG_SERIALIZED
+
+     <p>Others may be added in the future. It returns SQLITE_MISUSE if
+     given an argument it does not handle.
+
+     <p>Note that sqlite3_config() is not threadsafe with regards to
+     the rest of the library. This must not be called when any other
+     library APIs are being called.
+  */
+  public static int sqlite3_config(int op){
+    return sqlite3_config__enable(op);
+  }
+
+  /**
+     If the native library was built with SQLITE_ENABLE_SQLLOG defined
+     then this acts as a proxy for C's
+     sqlite3_config(SQLITE_CONFIG_SQLLOG,...). This sets or clears the
+     logger. If installation of a logger fails, any previous logger is
+     retained.
+
+     <p>If not built with SQLITE_ENABLE_SQLLOG defined, this returns
+     SQLITE_MISUSE.
+
+     <p>Note that sqlite3_config() is not threadsafe with regards to
+     the rest of the library. This must not be called when any other
+     library APIs are being called.
+  */
+  public static int sqlite3_config( @Nullable ConfigSqlLogCallback logger ){
+    return sqlite3_config__SQLLOG(logger);
+  }
+
+  /**
+     The sqlite3_config() overload for handling the SQLITE_CONFIG_LOG
+     option.
+  */
+  public static int sqlite3_config( @Nullable ConfigLogCallback logger ){
+    return sqlite3_config__CONFIG_LOG(logger);
+  }
+
+  /**
+     Unlike the C API, this returns null if its argument is
+     null (as opposed to invoking UB).
+  */
+  public static native sqlite3 sqlite3_context_db_handle(
+    @NotNull sqlite3_context cx
+  );
+
+  public static native int sqlite3_create_collation(
+    @NotNull sqlite3 db, @NotNull String name, int eTextRep,
+    @NotNull CollationCallback col
+  );
+
+  /**
+     The Java counterpart to the C-native sqlite3_create_function(),
+     sqlite3_create_function_v2(), and
+     sqlite3_create_window_function(). Which one it behaves like
+     depends on which methods the final argument implements. See
+     SQLFunction's subclasses (ScalarFunction, AggregateFunction<T>,
+     and WindowFunction<T>) for details.
+
+     <p>Unlike the C API, this returns SQLITE_MISUSE null if its db or
+     functionName arguments are null (as opposed to invoking UB).
+  */
+  public static native int sqlite3_create_function(
+    @NotNull sqlite3 db, @NotNull String functionName,
+    int nArg, int eTextRep, @NotNull SQLFunction func
+  );
+
+  private static native int sqlite3_data_count(@NotNull long ptrToStmt);
+
+  public static int sqlite3_data_count(@NotNull sqlite3_stmt stmt){
+    return sqlite3_data_count(stmt.getNativePointer());
+  }
+
+  /**
+     Overload for sqlite3_db_config() calls which take (int,int*)
+     variadic arguments. Returns SQLITE_MISUSE if op is not one of the
+     SQLITE_DBCONFIG_... options which uses this call form.
+
+     <p>Unlike the C API, this returns SQLITE_MISUSE if its db argument
+     is null (as opposed to invoking UB).
+  */
+  public static native int sqlite3_db_config(
+    @NotNull sqlite3 db, int op, int onOff, @Nullable OutputPointer.Int32 out
+  );
+
+  /**
+     Overload for sqlite3_db_config() calls which take a (const char*)
+     variadic argument. As of SQLite3 v3.43 the only such option is
+     SQLITE_DBCONFIG_MAINDBNAME. Returns SQLITE_MISUSE if op is not
+     SQLITE_DBCONFIG_MAINDBNAME, but that set of options may be
+     extended in future versions.
+  */
+  public static native int sqlite3_db_config(
+    @NotNull sqlite3 db, int op, @NotNull String val
+  );
+
+  private static native String sqlite3_db_name(@NotNull long ptrToDb, int ndx);
+
+  public static String sqlite3_db_name(@NotNull sqlite3 db, int ndx){
+    return null==db ? null : sqlite3_db_name(db.getNativePointer(), ndx);
+  }
+
+  public static native String sqlite3_db_filename(
+    @NotNull sqlite3 db, @NotNull String dbName
+  );
+
+  public static native sqlite3 sqlite3_db_handle(@NotNull sqlite3_stmt stmt);
+
+  public static native int sqlite3_db_readonly(@NotNull sqlite3 db, String dbName);
+
+  public static native int sqlite3_db_release_memory(sqlite3 db);
+
+  public static native int sqlite3_db_status(
+    @NotNull sqlite3 db, int op, @NotNull OutputPointer.Int32 pCurrent,
+    @NotNull OutputPointer.Int32 pHighwater, boolean reset
+  );
+
+  public static native int sqlite3_errcode(@NotNull sqlite3 db);
+
+  public static native String sqlite3_errmsg(@NotNull sqlite3 db);
+
+  private static native int sqlite3_error_offset(@NotNull long ptrToDb);
+
+  /**
+     Note that the returned byte offset values assume UTF-8-encoded
+     inputs, so won't always match character offsets in Java Strings.
+  */
+  public static int sqlite3_error_offset(@NotNull sqlite3 db){
+    return sqlite3_error_offset(db.getNativePointer());
+  }
+
+  public static native String sqlite3_errstr(int resultCode);
+
+  public static native String sqlite3_expanded_sql(@NotNull sqlite3_stmt stmt);
+
+  private static native int sqlite3_extended_errcode(@NotNull long ptrToDb);
+
+  public static int sqlite3_extended_errcode(@NotNull sqlite3 db){
+    return sqlite3_extended_errcode(db.getNativePointer());
+  }
+
+  public static native int sqlite3_extended_result_codes(
+    @NotNull sqlite3 db, boolean on
+  );
+
+  private static native boolean sqlite3_get_autocommit(@NotNull long ptrToDb);
+
+  public static boolean sqlite3_get_autocommit(@NotNull sqlite3 db){
+    return sqlite3_get_autocommit(db.getNativePointer());
+  }
+
+  public static native Object sqlite3_get_auxdata(
+    @NotNull sqlite3_context cx, int n
+  );
+
+  private static native int sqlite3_finalize(long ptrToStmt);
+
+  public static int sqlite3_finalize(@NotNull sqlite3_stmt stmt){
+    return null==stmt ? 0 : sqlite3_finalize(stmt.clearNativePointer());
+  }
+
+  public static native int sqlite3_initialize();
+
+  public static native void sqlite3_interrupt(@NotNull sqlite3 db);
+
+  public static native boolean sqlite3_is_interrupted(@NotNull sqlite3 db);
+
+  public static native boolean sqlite3_keyword_check(@NotNull String word);
+
+  public static native int sqlite3_keyword_count();
+
+  public static native String sqlite3_keyword_name(int index);
+
+
+  public static native long sqlite3_last_insert_rowid(@NotNull sqlite3 db);
+
+  public static native String sqlite3_libversion();
+
+  public static native int sqlite3_libversion_number();
+
+  public static native int sqlite3_limit(@NotNull sqlite3 db, int id, int newVal);
+
+  /**
+     Only available if built with SQLITE_ENABLE_NORMALIZE. If not, it always
+     returns null.
+  */
+  public static native String sqlite3_normalized_sql(@NotNull sqlite3_stmt stmt);
+
+  /**
+     Works like its C counterpart and makes the native pointer of the
+     underling (sqlite3*) object available via
+     ppDb.getNativePointer(). That pointer is necessary for looking up
+     the JNI-side native, but clients need not pay it any
+     heed. Passing the object to sqlite3_close() or sqlite3_close_v2()
+     will clear that pointer mapping.
+
+     <p>Recall that even if opening fails, the output pointer might be
+     non-null. Any error message about the failure will be in that
+     object and it is up to the caller to sqlite3_close() that
+     db handle.
+  */
+  public static native int sqlite3_open(
+    @Nullable String filename, @NotNull OutputPointer.sqlite3 ppDb
+  );
+
+  /**
+     Convenience overload which returns its db handle directly. The returned
+     object might not have been successfully opened: use sqlite3_errcode() to
+     check whether it is in an error state.
+
+     <p>Ownership of the returned value is passed to the caller, who must eventually
+     pass it to sqlite3_close() or sqlite3_close_v2().
+  */
+  public static sqlite3 sqlite3_open(@Nullable String filename){
+    final OutputPointer.sqlite3 out = new OutputPointer.sqlite3();
+    sqlite3_open(filename, out);
+    return out.take();
+  };
+
+  public static native int sqlite3_open_v2(
+    @Nullable String filename, @NotNull OutputPointer.sqlite3 ppDb,
+    int flags, @Nullable String zVfs
+  );
+
+  /**
+     Has the same semantics as the sqlite3-returning sqlite3_open()
+     but uses sqlite3_open_v2() instead of sqlite3_open().
+  */
+  public static sqlite3 sqlite3_open_v2(@Nullable String filename, int flags,
+                                        @Nullable String zVfs){
+    final OutputPointer.sqlite3 out = new OutputPointer.sqlite3();
+    sqlite3_open_v2(filename, out, flags, zVfs);
+    return out.take();
+  };
+
+  /**
+     The sqlite3_prepare() family of functions require slightly
+     different signatures than their native counterparts, but (A) they
+     retain functionally equivalent semantics and (B) overloading
+     allows us to install several convenience forms.
+
+     <p>All of them which take their SQL in the form of a byte[] require
+     that it be in UTF-8 encoding unless explicitly noted otherwise.
+
+     <p>The forms which take a "tail" output pointer return (via that
+     output object) the index into their SQL byte array at which the
+     end of the first SQL statement processed by the call was
+     found. That's fundamentally how the C APIs work but making use of
+     that value requires more copying of the input SQL into
+     consecutively smaller arrays in order to consume all of
+     it. (There is an example of doing that in this project's Tester1
+     class.) For that vast majority of uses, that capability is not
+     necessary, however, and overloads are provided which gloss over
+     that.
+
+     <p>Results are undefined if maxBytes>sqlUtf8.length.
+
+     <p>This routine is private because its maxBytes value is not
+     strictly necessary in the Java interface, as sqlUtf8.length tells
+     us the information we need. Making this public would give clients
+     more ways to shoot themselves in the foot without providing any
+     real utility.
+  */
+  private static native int sqlite3_prepare(
+    @NotNull long ptrToDb, @NotNull byte[] sqlUtf8, int maxBytes,
+    @NotNull OutputPointer.sqlite3_stmt outStmt,
+    @Nullable OutputPointer.Int32 pTailOffset
+  );
+
+  /**
+     Works like the canonical sqlite3_prepare() but its "tail" output
+     argument is returned as the index offset into the given
+     UTF-8-encoded byte array at which SQL parsing stopped. The
+     semantics are otherwise identical to the C API counterpart.
+
+     <p>Several overloads provided simplified call signatures.
+  */
+  public static int sqlite3_prepare(
+    @NotNull sqlite3 db, @NotNull byte[] sqlUtf8,
+    @NotNull OutputPointer.sqlite3_stmt outStmt,
+    @Nullable OutputPointer.Int32 pTailOffset
+  ){
+    return sqlite3_prepare(db.getNativePointer(), sqlUtf8, sqlUtf8.length,
+                           outStmt, pTailOffset);
+  }
+
+  public static int sqlite3_prepare(
+    @NotNull sqlite3 db, @NotNull byte[] sqlUtf8,
+    @NotNull OutputPointer.sqlite3_stmt outStmt
+  ){
+    return sqlite3_prepare(db.getNativePointer(), sqlUtf8, sqlUtf8.length,
+                           outStmt, null);
+  }
+
+  public static int sqlite3_prepare(
+    @NotNull sqlite3 db, @NotNull String sql,
+    @NotNull OutputPointer.sqlite3_stmt outStmt
+  ){
+    final byte[] utf8 = sql.getBytes(StandardCharsets.UTF_8);
+    return sqlite3_prepare(db.getNativePointer(), utf8, utf8.length,
+                           outStmt, null);
+  }
+
+  /**
+     Convenience overload which returns its statement handle directly,
+     or null on error or when reading only whitespace or
+     comments. sqlite3_errcode() can be used to determine whether
+     there was an error or the input was empty. Ownership of the
+     returned object is passed to the caller, who must eventually pass
+     it to sqlite3_finalize().
+  */
+  public static sqlite3_stmt sqlite3_prepare(
+    @NotNull sqlite3 db, @NotNull String sql
+  ){
+    final OutputPointer.sqlite3_stmt out = new OutputPointer.sqlite3_stmt();
+    sqlite3_prepare(db, sql, out);
+    return out.take();
+  }
+  /**
+     @see #sqlite3_prepare
+  */
+  private static native int sqlite3_prepare_v2(
+    @NotNull long ptrToDb, @NotNull byte[] sqlUtf8, int maxBytes,
+    @NotNull OutputPointer.sqlite3_stmt outStmt,
+    @Nullable OutputPointer.Int32 pTailOffset
+  );
+
+  /**
+     Works like the canonical sqlite3_prepare_v2() but its "tail"
+     output paramter is returned as the index offset into the given
+     byte array at which SQL parsing stopped.
+  */
+  public static int sqlite3_prepare_v2(
+    @NotNull sqlite3 db, @NotNull byte[] sqlUtf8,
+    @NotNull OutputPointer.sqlite3_stmt outStmt,
+    @Nullable OutputPointer.Int32 pTailOffset
+  ){
+    return sqlite3_prepare_v2(db.getNativePointer(), sqlUtf8, sqlUtf8.length,
+                              outStmt, pTailOffset);
+  }
+
+  public static int sqlite3_prepare_v2(
+    @NotNull sqlite3 db, @NotNull byte[] sqlUtf8,
+    @NotNull OutputPointer.sqlite3_stmt outStmt
+  ){
+    return sqlite3_prepare_v2(db.getNativePointer(), sqlUtf8, sqlUtf8.length,
+                              outStmt, null);
+  }
+
+  public static int sqlite3_prepare_v2(
+    @NotNull sqlite3 db, @NotNull String sql,
+    @NotNull OutputPointer.sqlite3_stmt outStmt
+  ){
+    final byte[] utf8 = sql.getBytes(StandardCharsets.UTF_8);
+    return sqlite3_prepare_v2(db.getNativePointer(), utf8, utf8.length,
+                              outStmt, null);
+  }
+
+  /**
+     Works identically to the sqlite3_stmt-returning sqlite3_prepare()
+     but uses sqlite3_prepare_v2().
+  */
+  public static sqlite3_stmt sqlite3_prepare_v2(
+    @NotNull sqlite3 db, @NotNull String sql
+  ){
+    final OutputPointer.sqlite3_stmt out = new OutputPointer.sqlite3_stmt();
+    sqlite3_prepare_v2(db, sql, out);
+    return out.take();
+  }
+
+  /**
+     @see #sqlite3_prepare
+  */
+  private static native int sqlite3_prepare_v3(
+    @NotNull long ptrToDb, @NotNull byte[] sqlUtf8, int maxBytes,
+    int prepFlags, @NotNull OutputPointer.sqlite3_stmt outStmt,
+    @Nullable OutputPointer.Int32 pTailOffset
+  );
+
+  /**
+     Works like the canonical sqlite3_prepare_v2() but its "tail"
+     output paramter is returned as the index offset into the given
+     byte array at which SQL parsing stopped.
+  */
+  public static int sqlite3_prepare_v3(
+    @NotNull sqlite3 db, @NotNull byte[] sqlUtf8, int prepFlags,
+    @NotNull OutputPointer.sqlite3_stmt outStmt,
+    @Nullable OutputPointer.Int32 pTailOffset
+  ){
+    return sqlite3_prepare_v3(db.getNativePointer(), sqlUtf8, sqlUtf8.length,
+                              prepFlags, outStmt, pTailOffset);
+  }
+
+  /**
+     Convenience overload which elides the seldom-used pTailOffset
+     parameter.
+  */
+  public static int sqlite3_prepare_v3(
+    @NotNull sqlite3 db, @NotNull byte[] sqlUtf8, int prepFlags,
+    @NotNull OutputPointer.sqlite3_stmt outStmt
+  ){
+    return sqlite3_prepare_v3(db.getNativePointer(), sqlUtf8, sqlUtf8.length,
+                              prepFlags, outStmt, null);
+  }
+
+  /**
+     Convenience overload which elides the seldom-used pTailOffset
+     parameter and converts the given string to UTF-8 before passing
+     it on.
+  */
+  public static int sqlite3_prepare_v3(
+    @NotNull sqlite3 db, @NotNull String sql, int prepFlags,
+    @NotNull OutputPointer.sqlite3_stmt outStmt
+  ){
+    final byte[] utf8 = sql.getBytes(StandardCharsets.UTF_8);
+    return sqlite3_prepare_v3(db.getNativePointer(), utf8, utf8.length,
+                              prepFlags, outStmt, null);
+  }
+
+  /**
+     Works identically to the sqlite3_stmt-returning sqlite3_prepare()
+     but uses sqlite3_prepare_v3().
+  */
+  public static sqlite3_stmt sqlite3_prepare_v3(
+    @NotNull sqlite3 db, @NotNull String sql, int prepFlags
+  ){
+    final OutputPointer.sqlite3_stmt out = new OutputPointer.sqlite3_stmt();
+    sqlite3_prepare_v3(db, sql, prepFlags, out);
+    return out.take();
+  }
+
+  /**
+     A convenience wrapper around sqlite3_prepare_v3() which accepts
+     an arbitrary amount of input provided as a UTF-8-encoded byte
+     array.  It loops over the input bytes looking for
+     statements. Each one it finds is passed to p.call(), passing
+     ownership of it to that function. If p.call() returns 0, looping
+     continues, else the loop stops and p.call()'s result code is
+     returned. If preparation of any given segment fails, looping
+     stops and that result code is returned.
+
+     <p>If p.call() throws, the exception is converted to a db-level
+     error and a non-0 code is returned, in order to retain the
+     C-style error semantics of the API.
+
+     <p>How each statement is handled, including whether it is finalized
+     or not, is up to the callback object. e.g. the callback might
+     collect them for later use. If it does not collect them then it
+     must finalize them. See PrepareMultiCallback.Finalize for a
+     simple proxy which does that.
+  */
+  public static int sqlite3_prepare_multi(
+    @NotNull sqlite3 db, @NotNull byte[] sqlUtf8,
+    int prepFlags,
+    @NotNull PrepareMultiCallback p){
+    final OutputPointer.Int32 oTail = new OutputPointer.Int32();
+    int pos = 0, n = 1;
+    byte[] sqlChunk = sqlUtf8;
+    int rc = 0;
+    final OutputPointer.sqlite3_stmt outStmt = new OutputPointer.sqlite3_stmt();
+    while( 0==rc && pos<sqlChunk.length ){
+      sqlite3_stmt stmt = null;
+      if( pos>0 ){
+        sqlChunk = Arrays.copyOfRange(sqlChunk, pos,
+                                      sqlChunk.length);
+      }
+      if( 0==sqlChunk.length ) break;
+      rc = sqlite3_prepare_v3(db, sqlChunk, prepFlags, outStmt, oTail);
+      if( 0!=rc ) break;
+      pos = oTail.value;
+      stmt = outStmt.take();
+      if( null==stmt ){
+        // empty statement (whitespace/comments)
+        continue;
+      }
+      try{
+        rc = p.call(stmt);
+      }catch(Exception e){
+        rc = sqlite3_jni_db_error( db, SQLITE_ERROR, e );
+      }
+    }
+    return rc;
+  }
+
+  /**
+     Convenience overload which accepts its SQL as a String and uses
+     no statement-preparation flags.
+  */
+  public static int sqlite3_prepare_multi(
+    @NotNull sqlite3 db, @NotNull byte[] sqlUtf8,
+    @NotNull PrepareMultiCallback p){
+    return sqlite3_prepare_multi(db, sqlUtf8, 0, p);
+  }
+
+  /**
+     Convenience overload which accepts its SQL as a String.
+  */
+  public static int sqlite3_prepare_multi(
+    @NotNull sqlite3 db, @NotNull String sql, int prepFlags,
+    @NotNull PrepareMultiCallback p){
+    return sqlite3_prepare_multi(
+      db, sql.getBytes(StandardCharsets.UTF_8), prepFlags, p
+    );
+  }
+
+  /**
+     Convenience overload which accepts its SQL as a String and uses
+     no statement-preparation flags.
+  */
+  public static int sqlite3_prepare_multi(
+    @NotNull sqlite3 db, @NotNull String sql,
+    @NotNull PrepareMultiCallback p){
+    return sqlite3_prepare_multi(db, sql, 0, p);
+  }
+
+  /**
+     Convenience overload which accepts its SQL as a String
+     array. They will be concatenated together as-is, with no
+     separator, and passed on to one of the other overloads.
+  */
+  public static int sqlite3_prepare_multi(
+    @NotNull sqlite3 db, @NotNull String[] sql, int prepFlags,
+    @NotNull PrepareMultiCallback p){
+    return sqlite3_prepare_multi(db, String.join("",sql), prepFlags, p);
+  }
+
+  /**
+     Convenience overload which uses no statement-preparation flags.
+  */
+  public static int sqlite3_prepare_multi(
+    @NotNull sqlite3 db, @NotNull String[] sql,
+    @NotNull PrepareMultiCallback p){
+    return sqlite3_prepare_multi(db, sql, 0, p);
+  }
+
+  private static native int sqlite3_preupdate_blobwrite(@NotNull long ptrToDb);
+
+  /**
+     If the C API was built with SQLITE_ENABLE_PREUPDATE_HOOK defined, this
+     acts as a proxy for C's sqlite3_preupdate_blobwrite(), else it returns
+     SQLITE_MISUSE with no side effects.
+  */
+  public static int sqlite3_preupdate_blobwrite(@NotNull sqlite3 db){
+    return sqlite3_preupdate_blobwrite(db.getNativePointer());
+  }
+
+  private static native int sqlite3_preupdate_count(@NotNull long ptrToDb);
+
+  /**
+     If the C API was built with SQLITE_ENABLE_PREUPDATE_HOOK defined, this
+     acts as a proxy for C's sqlite3_preupdate_count(), else it returns
+     SQLITE_MISUSE with no side effects.
+  */
+  public static int sqlite3_preupdate_count(@NotNull sqlite3 db){
+    return sqlite3_preupdate_count(db.getNativePointer());
+  }
+
+  private static native int sqlite3_preupdate_depth(@NotNull long ptrToDb);
+
+  /**
+     If the C API was built with SQLITE_ENABLE_PREUPDATE_HOOK defined, this
+     acts as a proxy for C's sqlite3_preupdate_depth(), else it returns
+     SQLITE_MISUSE with no side effects.
+  */
+  public static int sqlite3_preupdate_depth(@NotNull sqlite3 db){
+    return sqlite3_preupdate_depth(db.getNativePointer());
+  }
+
+  private static native PreupdateHookCallback sqlite3_preupdate_hook(
+    @NotNull long ptrToDb, @Nullable PreupdateHookCallback hook
+  );
+
+  /**
+     If the C API was built with SQLITE_ENABLE_PREUPDATE_HOOK defined, this
+     acts as a proxy for C's sqlite3_preupdate_hook(), else it returns null
+     with no side effects.
+  */
+  public static PreupdateHookCallback sqlite3_preupdate_hook(
+    @NotNull sqlite3 db, @Nullable PreupdateHookCallback hook
+  ){
+    return sqlite3_preupdate_hook(db.getNativePointer(), hook);
+  }
+
+  private static native int sqlite3_preupdate_new(@NotNull long ptrToDb, int col,
+                                                 @NotNull OutputPointer.sqlite3_value out);
+
+  /**
+     If the C API was built with SQLITE_ENABLE_PREUPDATE_HOOK defined,
+     this acts as a proxy for C's sqlite3_preupdate_new(), else it
+     returns SQLITE_MISUSE with no side effects.
+
+     WARNING: client code _must not_ hold a reference to the returned
+     sqlite3_value object beyond the scope of the preupdate hook in
+     which this function is called. Doing so will leave the client
+     holding a stale pointer, the address of which could point to
+     anything at all after the pre-update hook is complete. This API
+     has no way to record such objects and clear/invalidate them at
+     the end of a pre-update hook. We "could" add infrastructure to do
+     so, but would require significant levels of bookkeeping.
+  */
+  public static int sqlite3_preupdate_new(@NotNull sqlite3 db, int col,
+                                          @NotNull OutputPointer.sqlite3_value out){
+    return sqlite3_preupdate_new(db.getNativePointer(), col, out);
+  }
+
+  /**
+     Convenience wrapper for the 3-arg sqlite3_preupdate_new() which returns
+     null on error.
+  */
+  public static sqlite3_value sqlite3_preupdate_new(@NotNull sqlite3 db, int col){
+    final OutputPointer.sqlite3_value out = new OutputPointer.sqlite3_value();
+    sqlite3_preupdate_new(db.getNativePointer(), col, out);
+    return out.take();
+  }
+
+  private static native int sqlite3_preupdate_old(@NotNull long ptrToDb, int col,
+                                                 @NotNull OutputPointer.sqlite3_value out);
+
+  /**
+     If the C API was built with SQLITE_ENABLE_PREUPDATE_HOOK defined,
+     this acts as a proxy for C's sqlite3_preupdate_old(), else it
+     returns SQLITE_MISUSE with no side effects.
+
+     WARNING: see warning in sqlite3_preupdate_new() regarding the
+     potential for stale sqlite3_value handles.
+  */
+  public static int sqlite3_preupdate_old(@NotNull sqlite3 db, int col,
+                                          @NotNull OutputPointer.sqlite3_value out){
+    return sqlite3_preupdate_old(db.getNativePointer(), col, out);
+  }
+
+  /**
+     Convenience wrapper for the 3-arg sqlite3_preupdate_old() which returns
+     null on error.
+  */
+  public static sqlite3_value sqlite3_preupdate_old(@NotNull sqlite3 db, int col){
+    final OutputPointer.sqlite3_value out = new OutputPointer.sqlite3_value();
+    sqlite3_preupdate_old(db.getNativePointer(), col, out);
+    return out.take();
+  }
+
+  public static native void sqlite3_progress_handler(
+    @NotNull sqlite3 db, int n, @Nullable ProgressHandlerCallback h
+  );
+
+  public static native void sqlite3_randomness(byte[] target);
+
+  public static native int sqlite3_release_memory(int n);
+
+  public static native int sqlite3_reset(@NotNull sqlite3_stmt stmt);
+
+  /**
+     Works like the C API except that it has no side effects if auto
+     extensions are currently running. (The JNI-level list of
+     extensions cannot be manipulated while it is being traversed.)
+  */
+  public static native void sqlite3_reset_auto_extension();
+
+  public static native void sqlite3_result_double(
+    @NotNull sqlite3_context cx, double v
+  );
+
+  /**
+     The main sqlite3_result_error() impl of which all others are
+     proxies. eTextRep must be one of SQLITE_UTF8 or SQLITE_UTF16 and
+     msg must be encoded correspondingly. Any other eTextRep value
+     results in the C-level sqlite3_result_error() being called with a
+     complaint about the invalid argument.
+  */
+  private static native void sqlite3_result_error(
+    @NotNull sqlite3_context cx, @NotNull byte[] msg, int eTextRep
+  );
+
+  public static void sqlite3_result_error(
+    @NotNull sqlite3_context cx, @NotNull byte[] utf8
+  ){
+    sqlite3_result_error(cx, utf8, SQLITE_UTF8);
+  }
+
+  public static void sqlite3_result_error(
+    @NotNull sqlite3_context cx, @NotNull String msg
+  ){
+    final byte[] utf8 = msg.getBytes(StandardCharsets.UTF_8);
+    sqlite3_result_error(cx, utf8, SQLITE_UTF8);
+  }
+
+  public static void sqlite3_result_error16(
+    @NotNull sqlite3_context cx, @NotNull byte[] utf16
+  ){
+    sqlite3_result_error(cx, utf16, SQLITE_UTF16);
+  }
+
+  public static void sqlite3_result_error16(
+    @NotNull sqlite3_context cx, @NotNull String msg
+  ){
+    final byte[] utf16 = msg.getBytes(StandardCharsets.UTF_16);
+    sqlite3_result_error(cx, utf16, SQLITE_UTF16);
+  }
+
+  /**
+     Equivalent to passing e.toString() to {@link
+     #sqlite3_result_error(sqlite3_context,String)}.  Note that
+     toString() is used instead of getMessage() because the former
+     prepends the exception type name to the message.
+  */
+  public static void sqlite3_result_error(
+    @NotNull sqlite3_context cx, @NotNull Exception e
+  ){
+    sqlite3_result_error(cx, e.toString());
+  }
+
+  public static native void sqlite3_result_error_toobig(
+    @NotNull sqlite3_context cx
+  );
+
+  public static native void sqlite3_result_error_nomem(
+    @NotNull sqlite3_context cx
+  );
+
+  public static native void sqlite3_result_error_code(
+    @NotNull sqlite3_context cx, int c
+  );
+
+  public static native void sqlite3_result_int(
+    @NotNull sqlite3_context cx, int v
+  );
+
+  public static native void sqlite3_result_int64(
+    @NotNull sqlite3_context cx, long v
+  );
+
+  /**
+     Binds the SQL result to the given object, or {@link
+     #sqlite3_result_null} if {@code o} is null. Use {@link
+     #sqlite3_value_java_object} to fetch it.
+
+     <p>This is implemented in terms of C's sqlite3_result_pointer(),
+     but that function is not exposed to JNI because (A)
+     cross-language semantic mismatch and (B) Java doesn't need that
+     argument for its intended purpose (type safety).
+
+     @see #sqlite3_value_java_object
+     @see #sqlite3_bind_java_object
+  */
+  public static native void sqlite3_result_java_object(
+    @NotNull sqlite3_context cx, @NotNull Object o
+  );
+
+  /**
+     Similar to sqlite3_bind_nio_buffer(), this works like
+     sqlite3_result_blob() but accepts a java.nio.ByteBuffer as its
+     input source. See sqlite3_bind_nio_buffer() for the semantics of
+     the second and subsequent arguments.
+
+     If cx is null then this function will silently fail. If
+     sqlite3_jni_supports_nio() returns false or iBegin is negative,
+     an error result is set. If (begin+n) extends beyond the end of
+     the buffer, it is silently truncated to fit.
+
+     If any of the following apply, this function behaves like
+     sqlite3_result_null(): the blob is null, the resulting slice of
+     the blob is empty.
+
+     If the resulting slice of the buffer exceeds SQLITE_LIMIT_LENGTH
+     then this function behaves like sqlite3_result_error_toobig().
+  */
+  @Experimental
+  /*public*/ static native void sqlite3_result_nio_buffer(
+    @NotNull sqlite3_context cx, @Nullable java.nio.ByteBuffer blob,
+    int begin, int n
+  );
+
+  /**
+     Convenience overload which uses the whole input object
+     as the result blob content.
+  */
+  @Experimental
+  /*public*/ static void sqlite3_result_nio_buffer(
+    @NotNull sqlite3_context cx, @Nullable java.nio.ByteBuffer blob
+  ){
+    sqlite3_result_nio_buffer(cx, blob, 0, -1);
+  }
+
+  public static native void sqlite3_result_null(
+    @NotNull sqlite3_context cx
+  );
+
+  public static void sqlite3_result_set(
+    @NotNull sqlite3_context cx, @NotNull Boolean v
+  ){
+    sqlite3_result_int(cx, v ? 1 : 0);
+  }
+
+  public static void sqlite3_result_set(
+    @NotNull sqlite3_context cx, boolean v
+  ){
+    sqlite3_result_int(cx, v ? 1 : 0);
+  }
+
+  public static void sqlite3_result_set(
+    @NotNull sqlite3_context cx, @NotNull Double v
+  ){
+    sqlite3_result_double(cx, v);
+  }
+
+  public static void sqlite3_result_set(
+    @NotNull sqlite3_context cx, double v
+  ){
+    sqlite3_result_double(cx, v);
+  }
+
+  public static void sqlite3_result_set(
+    @NotNull sqlite3_context cx, @NotNull Integer v
+  ){
+    sqlite3_result_int(cx, v);
+  }
+
+  public static void sqlite3_result_set(@NotNull sqlite3_context cx, int v){
+    sqlite3_result_int(cx, v);
+  }
+
+  public static void sqlite3_result_set(
+    @NotNull sqlite3_context cx, @NotNull Long v
+  ){
+    sqlite3_result_int64(cx, v);
+  }
+
+  public static void sqlite3_result_set(
+    @NotNull sqlite3_context cx, long v
+  ){
+    sqlite3_result_int64(cx, v);
+  }
+
+  public static void sqlite3_result_set(
+    @NotNull sqlite3_context cx, @Nullable String v
+  ){
+    if( null==v ) sqlite3_result_null(cx);
+    else sqlite3_result_text(cx, v);
+  }
+
+  public static void sqlite3_result_set(
+    @NotNull sqlite3_context cx, @Nullable byte[] blob
+  ){
+    if( null==blob ) sqlite3_result_null(cx);
+    else sqlite3_result_blob(cx, blob, blob.length);
+  }
+
+  public static native void sqlite3_result_subtype(
+    @NotNull sqlite3_context cx, int val
+  );
+
+  public static native void sqlite3_result_value(
+    @NotNull sqlite3_context cx, @NotNull sqlite3_value v
+  );
+
+  public static native void sqlite3_result_zeroblob(
+    @NotNull sqlite3_context cx, int n
+  );
+
+  public static native int sqlite3_result_zeroblob64(
+    @NotNull sqlite3_context cx, long n
+  );
+
+  /**
+     This overload is private because its final parameter is arguably
+     unnecessary in Java.
+  */
+  private static native void sqlite3_result_blob(
+    @NotNull sqlite3_context cx, @Nullable byte[] blob, int maxLen
+  );
+
+  public static void sqlite3_result_blob(
+    @NotNull sqlite3_context cx, @Nullable byte[] blob
+  ){
+    sqlite3_result_blob(cx, blob, (int)(null==blob ? 0 : blob.length));
+  }
+
+  /**
+     Convenience overload which behaves like
+     sqlite3_result_nio_buffer().
+  */
+  @Experimental
+  /*public*/ static void sqlite3_result_blob(
+    @NotNull sqlite3_context cx, @Nullable java.nio.ByteBuffer blob,
+    int begin, int n
+  ){
+    sqlite3_result_nio_buffer(cx, blob, begin, n);
+  }
+
+  /**
+     Convenience overload which behaves like the two-argument overload of
+     sqlite3_result_nio_buffer().
+  */
+  @Experimental
+  /*public*/ static void sqlite3_result_blob(
+    @NotNull sqlite3_context cx, @Nullable java.nio.ByteBuffer blob
+  ){
+    sqlite3_result_nio_buffer(cx, blob);
+  }
+
+  /**
+     Binds the given text using C's sqlite3_result_blob64() unless:
+
+     <ul>
+
+     <li>@param blob is null: translates to sqlite3_result_null()</li>
+
+     <li>@param blob is too large: translates to
+     sqlite3_result_error_toobig()</li>
+
+     </ul>
+
+     <p>If @param maxLen is larger than blob.length, it is truncated
+     to that value. If it is negative, results are undefined.</p>
+
+     <p>This overload is private because its final parameter is
+     arguably unnecessary in Java.</p>
+  */
+  private static native void sqlite3_result_blob64(
+    @NotNull sqlite3_context cx, @Nullable byte[] blob, long maxLen
+  );
+
+  public static void sqlite3_result_blob64(
+    @NotNull sqlite3_context cx, @Nullable byte[] blob
+  ){
+    sqlite3_result_blob64(cx, blob, (long)(null==blob ? 0 : blob.length));
+  }
+
+  /**
+     This overload is private because its final parameter is
+     arguably unnecessary in Java.
+  */
+  private static native void sqlite3_result_text(
+    @NotNull sqlite3_context cx, @Nullable byte[] utf8, int maxLen
+  );
+
+  public static void sqlite3_result_text(
+    @NotNull sqlite3_context cx, @Nullable byte[] utf8
+  ){
+    sqlite3_result_text(cx, utf8, null==utf8 ? 0 : utf8.length);
+  }
+
+  public static void sqlite3_result_text(
+    @NotNull sqlite3_context cx, @Nullable String text
+  ){
+    if(null == text) sqlite3_result_null(cx);
+    else{
+      final byte[] utf8 = text.getBytes(StandardCharsets.UTF_8);
+      sqlite3_result_text(cx, utf8, utf8.length);
+    }
+  }
+
+  /**
+     Binds the given text using C's sqlite3_result_text64() unless:
+
+     <ul>
+
+     <li>text is null: translates to a call to {@link
+     #sqlite3_result_null}</li>
+
+     <li>text is too large: translates to a call to
+     {@link #sqlite3_result_error_toobig}</li>
+
+     <li>The @param encoding argument has an invalid value: translates to
+     {@link sqlite3_result_error_code} with code SQLITE_FORMAT.</li>
+
+     </ul>
+
+     If maxLength (in bytes, not characters) is larger than
+     text.length, it is silently truncated to text.length. If it is
+     negative, results are undefined. If text is null, the subsequent
+     arguments are ignored.
+
+     This overload is private because its maxLength parameter is
+     arguably unnecessary in Java.
+  */
+  private static native void sqlite3_result_text64(
+    @NotNull sqlite3_context cx, @Nullable byte[] text,
+    long maxLength, int encoding
+  );
+
+  /**
+     Sets the current UDF result to the given bytes, which are assumed
+     be encoded in UTF-16 using the platform's byte order.
+  */
+  public static void sqlite3_result_text16(
+    @NotNull sqlite3_context cx, @Nullable byte[] utf16
+  ){
+    if(null == utf16) sqlite3_result_null(cx);
+    else sqlite3_result_text64(cx, utf16, utf16.length, SQLITE_UTF16);
+  }
+
+  public static void sqlite3_result_text16(
+    @NotNull sqlite3_context cx, @Nullable String text
+  ){
+    if(null == text) sqlite3_result_null(cx);
+    else{
+      final byte[] b = text.getBytes(StandardCharsets.UTF_16);
+      sqlite3_result_text64(cx, b, b.length, SQLITE_UTF16);
+    }
+  }
+
+  private static native RollbackHookCallback sqlite3_rollback_hook(
+    @NotNull long ptrToDb, @Nullable RollbackHookCallback hook
+  );
+
+  public static RollbackHookCallback sqlite3_rollback_hook(
+    @NotNull sqlite3 db, @Nullable RollbackHookCallback hook
+  ){
+    return sqlite3_rollback_hook(db.getNativePointer(), hook);
+  }
+
+  public static native int sqlite3_set_authorizer(
+    @NotNull sqlite3 db, @Nullable AuthorizerCallback auth
+  );
+
+  public static native void sqlite3_set_auxdata(
+    @NotNull sqlite3_context cx, int n, @Nullable Object data
+  );
+
+  public static native void sqlite3_set_last_insert_rowid(
+    @NotNull sqlite3 db, long rowid
+  );
+
+
+  /**
+     In addition to calling the C-level sqlite3_shutdown(), the JNI
+     binding also cleans up all stale per-thread state managed by the
+     library, as well as any registered auto-extensions, and frees up
+     various bits of memory. Calling this while database handles or
+     prepared statements are still active will leak resources. Trying
+     to use those objects after this routine is called invoked
+     undefined behavior.
+  */
+  public static synchronized native int sqlite3_shutdown();
+
+  public static native int sqlite3_sleep(int ms);
+
+  public static native String sqlite3_sourceid();
+
+  public static native String sqlite3_sql(@NotNull sqlite3_stmt stmt);
+
+  //! Consider removing this. We can use sqlite3_status64() instead,
+  // or use that one's impl with this one's name.
+  public static native int sqlite3_status(
+    int op, @NotNull OutputPointer.Int32 pCurrent,
+    @NotNull OutputPointer.Int32 pHighwater, boolean reset
+  );
+
+  public static native int sqlite3_status64(
+    int op, @NotNull OutputPointer.Int64 pCurrent,
+    @NotNull OutputPointer.Int64 pHighwater, boolean reset
+  );
+
+  private static native int sqlite3_step(@NotNull long ptrToStmt);
+
+  public static int sqlite3_step(@NotNull sqlite3_stmt stmt){
+    return null==stmt ? SQLITE_MISUSE : sqlite3_step(stmt.getNativePointer());
+  }
+
+  public static native boolean sqlite3_stmt_busy(@NotNull sqlite3_stmt stmt);
+
+  private static native int sqlite3_stmt_explain(@NotNull long ptrToStmt, int op);
+
+  public static int sqlite3_stmt_explain(@NotNull sqlite3_stmt stmt, int op){
+    return null==stmt ? SQLITE_MISUSE : sqlite3_stmt_explain(stmt.getNativePointer(), op);
+  }
+
+  private static native int sqlite3_stmt_isexplain(@NotNull long ptrToStmt);
+
+  public static int sqlite3_stmt_isexplain(@NotNull sqlite3_stmt stmt){
+    return null==stmt ? 0 : sqlite3_stmt_isexplain(stmt.getNativePointer());
+  }
+
+  public static native boolean sqlite3_stmt_readonly(@NotNull sqlite3_stmt stmt);
+
+  public static native int sqlite3_stmt_status(
+    @NotNull sqlite3_stmt stmt, int op, boolean reset
+  );
+
+  /**
+     Internal impl of the public sqlite3_strglob() method. Neither
+     argument may be null and both must be NUL-terminated UTF-8.
+
+     This overload is private because: (A) to keep users from
+     inadvertently passing non-NUL-terminated byte arrays (an easy
+     thing to do). (B) it is cheaper to NUL-terminate the
+     String-to-byte-array conversion in the Java implementation
+     (sqlite3_strglob(String,String)) than to do that in C, so that
+     signature is the public-facing one.
+  */
+  private static native int sqlite3_strglob(
+    @NotNull byte[] glob, @NotNull byte[] nulTerminatedUtf8
+  );
+
+  public static int sqlite3_strglob(
+    @NotNull String glob, @NotNull String txt
+  ){
+    return sqlite3_strglob(nulTerminateUtf8(glob),
+                           nulTerminateUtf8(txt));
+  }
+
+  /**
+     The LIKE counterpart of the private sqlite3_strglob() method.
+  */
+  private static native int sqlite3_strlike(
+    @NotNull byte[] glob, @NotNull byte[] nulTerminatedUtf8,
+    int escChar
+  );
+
+  public static int sqlite3_strlike(
+    @NotNull String glob, @NotNull String txt, char escChar
+  ){
+    return sqlite3_strlike(nulTerminateUtf8(glob),
+                           nulTerminateUtf8(txt),
+                           (int)escChar);
+  }
+
+  private static native int sqlite3_system_errno(@NotNull long ptrToDb);
+
+  public static int sqlite3_system_errno(@NotNull sqlite3 db){
+    return sqlite3_system_errno(db.getNativePointer());
+  }
+
+  public static native int sqlite3_table_column_metadata(
+    @NotNull sqlite3 db, @NotNull String zDbName,
+    @NotNull String zTableName, @NotNull String zColumnName,
+    @Nullable OutputPointer.String pzDataType,
+    @Nullable OutputPointer.String pzCollSeq,
+    @Nullable OutputPointer.Bool pNotNull,
+    @Nullable OutputPointer.Bool pPrimaryKey,
+    @Nullable OutputPointer.Bool pAutoinc
+  );
+
+  /**
+     Convenience overload which returns its results via a single
+     output object. If this function returns non-0 (error), the the
+     contents of the output object are not modified.
+  */
+  public static int sqlite3_table_column_metadata(
+    @NotNull sqlite3 db, @NotNull String zDbName,
+    @NotNull String zTableName, @NotNull String zColumnName,
+    @NotNull TableColumnMetadata out){
+    return sqlite3_table_column_metadata(
+      db, zDbName, zTableName, zColumnName,
+      out.pzDataType, out.pzCollSeq, out.pNotNull,
+      out.pPrimaryKey, out.pAutoinc);
+  }
+
+  /**
+     Convenience overload which returns the column metadata object on
+     success and null on error.
+  */
+  public static TableColumnMetadata sqlite3_table_column_metadata(
+    @NotNull sqlite3 db, @NotNull String zDbName,
+    @NotNull String zTableName, @NotNull String zColumnName){
+    final TableColumnMetadata out = new TableColumnMetadata();
+    return 0==sqlite3_table_column_metadata(
+      db, zDbName, zTableName, zColumnName, out
+    ) ? out : null;
+  }
+
+  public static native int sqlite3_threadsafe();
+
+  private static native int sqlite3_total_changes(@NotNull long ptrToDb);
+
+  public static int sqlite3_total_changes(@NotNull sqlite3 db){
+    return sqlite3_total_changes(db.getNativePointer());
+  }
+
+  private static native long sqlite3_total_changes64(@NotNull long ptrToDb);
+
+  public static long sqlite3_total_changes64(@NotNull sqlite3 db){
+    return sqlite3_total_changes64(db.getNativePointer());
+  }
+
+  /**
+     Works like C's sqlite3_trace_v2() except that the 3rd argument to that
+     function is elided here because the roles of that functions' 3rd and 4th
+     arguments are encapsulated in the final argument to this function.
+
+     <p>Unlike the C API, which is documented as always returning 0,
+     this implementation returns non-0 if initialization of the tracer
+     mapping state fails (e.g. on OOM).
+  */
+  public static native int sqlite3_trace_v2(
+    @NotNull sqlite3 db, int traceMask, @Nullable TraceV2Callback tracer
+  );
+
+  public static native int sqlite3_txn_state(
+    @NotNull sqlite3 db, @Nullable String zSchema
+  );
+
+  private static native UpdateHookCallback sqlite3_update_hook(
+    @NotNull long ptrToDb, @Nullable UpdateHookCallback hook
+  );
+
+  public static UpdateHookCallback sqlite3_update_hook(
+    @NotNull sqlite3 db, @Nullable UpdateHookCallback hook
+  ){
+    return sqlite3_update_hook(db.getNativePointer(), hook);
+  }
+
+  /*
+     Note that:
+
+     void * sqlite3_user_data(sqlite3_context*)
+
+     Is not relevant in the JNI binding, as its feature is replaced by
+     the ability to pass an object, including any relevant state, to
+     sqlite3_create_function().
+  */
+
+  private static native byte[] sqlite3_value_blob(@NotNull long ptrToValue);
+
+  public static byte[] sqlite3_value_blob(@NotNull sqlite3_value v){
+    return sqlite3_value_blob(v.getNativePointer());
+  }
+
+  private static native int sqlite3_value_bytes(@NotNull long ptrToValue);
+
+  public static int sqlite3_value_bytes(@NotNull sqlite3_value v){
+    return sqlite3_value_bytes(v.getNativePointer());
+  }
+
+  private static native int sqlite3_value_bytes16(@NotNull long ptrToValue);
+
+  public static int sqlite3_value_bytes16(@NotNull sqlite3_value v){
+    return sqlite3_value_bytes16(v.getNativePointer());
+  }
+
+  private static native double sqlite3_value_double(@NotNull long ptrToValue);
+
+  public static double sqlite3_value_double(@NotNull sqlite3_value v){
+    return sqlite3_value_double(v.getNativePointer());
+  }
+
+  private static native sqlite3_value sqlite3_value_dup(@NotNull long ptrToValue);
+
+  public static sqlite3_value sqlite3_value_dup(@NotNull sqlite3_value v){
+    return sqlite3_value_dup(v.getNativePointer());
+  }
+
+  private static native int sqlite3_value_encoding(@NotNull long ptrToValue);
+
+  public static int sqlite3_value_encoding(@NotNull sqlite3_value v){
+    return sqlite3_value_encoding(v.getNativePointer());
+  }
+
+  private static native void sqlite3_value_free(@Nullable long ptrToValue);
+
+  public static void sqlite3_value_free(@Nullable sqlite3_value v){
+    if( null!=v ) sqlite3_value_free(v.clearNativePointer());
+  }
+
+  private static native boolean sqlite3_value_frombind(@NotNull long ptrToValue);
+
+  public static boolean sqlite3_value_frombind(@NotNull sqlite3_value v){
+    return sqlite3_value_frombind(v.getNativePointer());
+  }
+
+  private static native int sqlite3_value_int(@NotNull long ptrToValue);
+
+  public static int sqlite3_value_int(@NotNull sqlite3_value v){
+    return sqlite3_value_int(v.getNativePointer());
+  }
+
+  private static native long sqlite3_value_int64(@NotNull long ptrToValue);
+
+  public static long sqlite3_value_int64(@NotNull sqlite3_value v){
+    return sqlite3_value_int64(v.getNativePointer());
+  }
+
+  private static native Object sqlite3_value_java_object(@NotNull long ptrToValue);
+
+  /**
+     If the given value was set using {@link
+     #sqlite3_result_java_object} then this function returns that
+     object, else it returns null.
+
+     <p>It is up to the caller to inspect the object to determine its
+     type, and cast it if necessary.
+  */
+  public static Object sqlite3_value_java_object(@NotNull sqlite3_value v){
+    return sqlite3_value_java_object(v.getNativePointer());
+  }
+
+  /**
+     A variant of sqlite3_value_java_object() which returns the
+     fetched object cast to T if the object is an instance of the
+     given Class, else it returns null.
+  */
+  @SuppressWarnings("unchecked")
+  public static <T> T sqlite3_value_java_object(@NotNull sqlite3_value v,
+                                                @NotNull Class<T> type){
+    final Object o = sqlite3_value_java_object(v);
+    return type.isInstance(o) ? (T)o : null;
+  }
+
+  /**
+     A variant of sqlite3_column_blob() which returns the blob as a
+     ByteBuffer object. Returns null if its argument is null, if
+     sqlite3_jni_supports_nio() is false, or if sqlite3_value_blob()
+     would return null for the same input.
+  */
+  @Experimental
+  /*public*/ static native java.nio.ByteBuffer sqlite3_value_nio_buffer(
+    @NotNull sqlite3_value v
+  );
+
+  private static native int sqlite3_value_nochange(@NotNull long ptrToValue);
+
+  public static int sqlite3_value_nochange(@NotNull sqlite3_value v){
+    return sqlite3_value_nochange(v.getNativePointer());
+  }
+
+  private static native int sqlite3_value_numeric_type(@NotNull long ptrToValue);
+
+  public static int sqlite3_value_numeric_type(@NotNull sqlite3_value v){
+    return sqlite3_value_numeric_type(v.getNativePointer());
+  }
+
+  private static native int sqlite3_value_subtype(@NotNull long ptrToValue);
+
+  public static int sqlite3_value_subtype(@NotNull sqlite3_value v){
+    return sqlite3_value_subtype(v.getNativePointer());
+  }
+
+  private static native byte[] sqlite3_value_text(@NotNull long ptrToValue);
+
+  /**
+     Functions identially to the C API, and this note is just to
+     stress that the returned bytes are encoded as UTF-8. It returns
+     null if the underlying C-level sqlite3_value_text() returns NULL
+     or on allocation error.
+  */
+  public static byte[] sqlite3_value_text(@NotNull sqlite3_value v){
+    return sqlite3_value_text(v.getNativePointer());
+  }
+
+  private static native String sqlite3_value_text16(@NotNull long ptrToValue);
+
+  public static String sqlite3_value_text16(@NotNull sqlite3_value v){
+    return sqlite3_value_text16(v.getNativePointer());
+  }
+
+  private static native int sqlite3_value_type(@NotNull long ptrToValue);
+
+  public static int sqlite3_value_type(@NotNull sqlite3_value v){
+    return sqlite3_value_type(v.getNativePointer());
+  }
+
+  /**
+     This is NOT part of the public API. It exists solely as a place
+     for this code's developers to collect internal metrics and such.
+     It has no stable interface. It may go way or change behavior at
+     any time.
+  */
+  public static native void sqlite3_jni_internal_details();
+
+  //////////////////////////////////////////////////////////////////////
+  // SQLITE_... constants follow...
+
+  // version info
+  public static final int SQLITE_VERSION_NUMBER = sqlite3_libversion_number();
+  public static final String SQLITE_VERSION = sqlite3_libversion();
+  public static final String SQLITE_SOURCE_ID = sqlite3_sourceid();
+
+  // access
+  public static final int SQLITE_ACCESS_EXISTS = 0;
+  public static final int SQLITE_ACCESS_READWRITE = 1;
+  public static final int SQLITE_ACCESS_READ = 2;
+
+  // authorizer
+  public static final int SQLITE_DENY = 1;
+  public static final int SQLITE_IGNORE = 2;
+  public static final int SQLITE_CREATE_INDEX = 1;
+  public static final int SQLITE_CREATE_TABLE = 2;
+  public static final int SQLITE_CREATE_TEMP_INDEX = 3;
+  public static final int SQLITE_CREATE_TEMP_TABLE = 4;
+  public static final int SQLITE_CREATE_TEMP_TRIGGER = 5;
+  public static final int SQLITE_CREATE_TEMP_VIEW = 6;
+  public static final int SQLITE_CREATE_TRIGGER = 7;
+  public static final int SQLITE_CREATE_VIEW = 8;
+  public static final int SQLITE_DELETE = 9;
+  public static final int SQLITE_DROP_INDEX = 10;
+  public static final int SQLITE_DROP_TABLE = 11;
+  public static final int SQLITE_DROP_TEMP_INDEX = 12;
+  public static final int SQLITE_DROP_TEMP_TABLE = 13;
+  public static final int SQLITE_DROP_TEMP_TRIGGER = 14;
+  public static final int SQLITE_DROP_TEMP_VIEW = 15;
+  public static final int SQLITE_DROP_TRIGGER = 16;
+  public static final int SQLITE_DROP_VIEW = 17;
+  public static final int SQLITE_INSERT = 18;
+  public static final int SQLITE_PRAGMA = 19;
+  public static final int SQLITE_READ = 20;
+  public static final int SQLITE_SELECT = 21;
+  public static final int SQLITE_TRANSACTION = 22;
+  public static final int SQLITE_UPDATE = 23;
+  public static final int SQLITE_ATTACH = 24;
+  public static final int SQLITE_DETACH = 25;
+  public static final int SQLITE_ALTER_TABLE = 26;
+  public static final int SQLITE_REINDEX = 27;
+  public static final int SQLITE_ANALYZE = 28;
+  public static final int SQLITE_CREATE_VTABLE = 29;
+  public static final int SQLITE_DROP_VTABLE = 30;
+  public static final int SQLITE_FUNCTION = 31;
+  public static final int SQLITE_SAVEPOINT = 32;
+  public static final int SQLITE_RECURSIVE = 33;
+
+  // blob finalizers: these should, because they are treated as
+  // special pointer values in C, ideally have the same sizeof() as
+  // the platform's (void*), but we can't know that size from here.
+  public static final long SQLITE_STATIC = 0;
+  public static final long SQLITE_TRANSIENT = -1;
+
+  // changeset
+  public static final int SQLITE_CHANGESETSTART_INVERT = 2;
+  public static final int SQLITE_CHANGESETAPPLY_NOSAVEPOINT = 1;
+  public static final int SQLITE_CHANGESETAPPLY_INVERT = 2;
+  public static final int SQLITE_CHANGESETAPPLY_IGNORENOOP = 4;
+  public static final int SQLITE_CHANGESET_DATA = 1;
+  public static final int SQLITE_CHANGESET_NOTFOUND = 2;
+  public static final int SQLITE_CHANGESET_CONFLICT = 3;
+  public static final int SQLITE_CHANGESET_CONSTRAINT = 4;
+  public static final int SQLITE_CHANGESET_FOREIGN_KEY = 5;
+  public static final int SQLITE_CHANGESET_OMIT = 0;
+  public static final int SQLITE_CHANGESET_REPLACE = 1;
+  public static final int SQLITE_CHANGESET_ABORT = 2;
+
+  // config
+  public static final int SQLITE_CONFIG_SINGLETHREAD = 1;
+  public static final int SQLITE_CONFIG_MULTITHREAD = 2;
+  public static final int SQLITE_CONFIG_SERIALIZED = 3;
+  public static final int SQLITE_CONFIG_MALLOC = 4;
+  public static final int SQLITE_CONFIG_GETMALLOC = 5;
+  public static final int SQLITE_CONFIG_SCRATCH = 6;
+  public static final int SQLITE_CONFIG_PAGECACHE = 7;
+  public static final int SQLITE_CONFIG_HEAP = 8;
+  public static final int SQLITE_CONFIG_MEMSTATUS = 9;
+  public static final int SQLITE_CONFIG_MUTEX = 10;
+  public static final int SQLITE_CONFIG_GETMUTEX = 11;
+  public static final int SQLITE_CONFIG_LOOKASIDE = 13;
+  public static final int SQLITE_CONFIG_PCACHE = 14;
+  public static final int SQLITE_CONFIG_GETPCACHE = 15;
+  public static final int SQLITE_CONFIG_LOG = 16;
+  public static final int SQLITE_CONFIG_URI = 17;
+  public static final int SQLITE_CONFIG_PCACHE2 = 18;
+  public static final int SQLITE_CONFIG_GETPCACHE2 = 19;
+  public static final int SQLITE_CONFIG_COVERING_INDEX_SCAN = 20;
+  public static final int SQLITE_CONFIG_SQLLOG = 21;
+  public static final int SQLITE_CONFIG_MMAP_SIZE = 22;
+  public static final int SQLITE_CONFIG_WIN32_HEAPSIZE = 23;
+  public static final int SQLITE_CONFIG_PCACHE_HDRSZ = 24;
+  public static final int SQLITE_CONFIG_PMASZ = 25;
+  public static final int SQLITE_CONFIG_STMTJRNL_SPILL = 26;
+  public static final int SQLITE_CONFIG_SMALL_MALLOC = 27;
+  public static final int SQLITE_CONFIG_SORTERREF_SIZE = 28;
+  public static final int SQLITE_CONFIG_MEMDB_MAXSIZE = 29;
+
+  // data types
+  public static final int SQLITE_INTEGER = 1;
+  public static final int SQLITE_FLOAT = 2;
+  public static final int SQLITE_TEXT = 3;
+  public static final int SQLITE_BLOB = 4;
+  public static final int SQLITE_NULL = 5;
+
+  // db config
+  public static final int SQLITE_DBCONFIG_MAINDBNAME = 1000;
+  public static final int SQLITE_DBCONFIG_LOOKASIDE = 1001;
+  public static final int SQLITE_DBCONFIG_ENABLE_FKEY = 1002;
+  public static final int SQLITE_DBCONFIG_ENABLE_TRIGGER = 1003;
+  public static final int SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER = 1004;
+  public static final int SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION = 1005;
+  public static final int SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE = 1006;
+  public static final int SQLITE_DBCONFIG_ENABLE_QPSG = 1007;
+  public static final int SQLITE_DBCONFIG_TRIGGER_EQP = 1008;
+  public static final int SQLITE_DBCONFIG_RESET_DATABASE = 1009;
+  public static final int SQLITE_DBCONFIG_DEFENSIVE = 1010;
+  public static final int SQLITE_DBCONFIG_WRITABLE_SCHEMA = 1011;
+  public static final int SQLITE_DBCONFIG_LEGACY_ALTER_TABLE = 1012;
+  public static final int SQLITE_DBCONFIG_DQS_DML = 1013;
+  public static final int SQLITE_DBCONFIG_DQS_DDL = 1014;
+  public static final int SQLITE_DBCONFIG_ENABLE_VIEW = 1015;
+  public static final int SQLITE_DBCONFIG_LEGACY_FILE_FORMAT = 1016;
+  public static final int SQLITE_DBCONFIG_TRUSTED_SCHEMA = 1017;
+  public static final int SQLITE_DBCONFIG_STMT_SCANSTATUS = 1018;
+  public static final int SQLITE_DBCONFIG_REVERSE_SCANORDER = 1019;
+  public static final int SQLITE_DBCONFIG_MAX = 1019;
+
+  // db status
+  public static final int SQLITE_DBSTATUS_LOOKASIDE_USED = 0;
+  public static final int SQLITE_DBSTATUS_CACHE_USED = 1;
+  public static final int SQLITE_DBSTATUS_SCHEMA_USED = 2;
+  public static final int SQLITE_DBSTATUS_STMT_USED = 3;
+  public static final int SQLITE_DBSTATUS_LOOKASIDE_HIT = 4;
+  public static final int SQLITE_DBSTATUS_LOOKASIDE_MISS_SIZE = 5;
+  public static final int SQLITE_DBSTATUS_LOOKASIDE_MISS_FULL = 6;
+  public static final int SQLITE_DBSTATUS_CACHE_HIT = 7;
+  public static final int SQLITE_DBSTATUS_CACHE_MISS = 8;
+  public static final int SQLITE_DBSTATUS_CACHE_WRITE = 9;
+  public static final int SQLITE_DBSTATUS_DEFERRED_FKS = 10;
+  public static final int SQLITE_DBSTATUS_CACHE_USED_SHARED = 11;
+  public static final int SQLITE_DBSTATUS_CACHE_SPILL = 12;
+  public static final int SQLITE_DBSTATUS_MAX = 12;
+
+  // encodings
+  public static final int SQLITE_UTF8 = 1;
+  public static final int SQLITE_UTF16LE = 2;
+  public static final int SQLITE_UTF16BE = 3;
+  public static final int SQLITE_UTF16 = 4;
+  public static final int SQLITE_UTF16_ALIGNED = 8;
+
+  // fcntl
+  public static final int SQLITE_FCNTL_LOCKSTATE = 1;
+  public static final int SQLITE_FCNTL_GET_LOCKPROXYFILE = 2;
+  public static final int SQLITE_FCNTL_SET_LOCKPROXYFILE = 3;
+  public static final int SQLITE_FCNTL_LAST_ERRNO = 4;
+  public static final int SQLITE_FCNTL_SIZE_HINT = 5;
+  public static final int SQLITE_FCNTL_CHUNK_SIZE = 6;
+  public static final int SQLITE_FCNTL_FILE_POINTER = 7;
+  public static final int SQLITE_FCNTL_SYNC_OMITTED = 8;
+  public static final int SQLITE_FCNTL_WIN32_AV_RETRY = 9;
+  public static final int SQLITE_FCNTL_PERSIST_WAL = 10;
+  public static final int SQLITE_FCNTL_OVERWRITE = 11;
+  public static final int SQLITE_FCNTL_VFSNAME = 12;
+  public static final int SQLITE_FCNTL_POWERSAFE_OVERWRITE = 13;
+  public static final int SQLITE_FCNTL_PRAGMA = 14;
+  public static final int SQLITE_FCNTL_BUSYHANDLER = 15;
+  public static final int SQLITE_FCNTL_TEMPFILENAME = 16;
+  public static final int SQLITE_FCNTL_MMAP_SIZE = 18;
+  public static final int SQLITE_FCNTL_TRACE = 19;
+  public static final int SQLITE_FCNTL_HAS_MOVED = 20;
+  public static final int SQLITE_FCNTL_SYNC = 21;
+  public static final int SQLITE_FCNTL_COMMIT_PHASETWO = 22;
+  public static final int SQLITE_FCNTL_WIN32_SET_HANDLE = 23;
+  public static final int SQLITE_FCNTL_WAL_BLOCK = 24;
+  public static final int SQLITE_FCNTL_ZIPVFS = 25;
+  public static final int SQLITE_FCNTL_RBU = 26;
+  public static final int SQLITE_FCNTL_VFS_POINTER = 27;
+  public static final int SQLITE_FCNTL_JOURNAL_POINTER = 28;
+  public static final int SQLITE_FCNTL_WIN32_GET_HANDLE = 29;
+  public static final int SQLITE_FCNTL_PDB = 30;
+  public static final int SQLITE_FCNTL_BEGIN_ATOMIC_WRITE = 31;
+  public static final int SQLITE_FCNTL_COMMIT_ATOMIC_WRITE = 32;
+  public static final int SQLITE_FCNTL_ROLLBACK_ATOMIC_WRITE = 33;
+  public static final int SQLITE_FCNTL_LOCK_TIMEOUT = 34;
+  public static final int SQLITE_FCNTL_DATA_VERSION = 35;
+  public static final int SQLITE_FCNTL_SIZE_LIMIT = 36;
+  public static final int SQLITE_FCNTL_CKPT_DONE = 37;
+  public static final int SQLITE_FCNTL_RESERVE_BYTES = 38;
+  public static final int SQLITE_FCNTL_CKPT_START = 39;
+  public static final int SQLITE_FCNTL_EXTERNAL_READER = 40;
+  public static final int SQLITE_FCNTL_CKSM_FILE = 41;
+  public static final int SQLITE_FCNTL_RESET_CACHE = 42;
+
+  // flock
+  public static final int SQLITE_LOCK_NONE = 0;
+  public static final int SQLITE_LOCK_SHARED = 1;
+  public static final int SQLITE_LOCK_RESERVED = 2;
+  public static final int SQLITE_LOCK_PENDING = 3;
+  public static final int SQLITE_LOCK_EXCLUSIVE = 4;
+
+  // iocap
+  public static final int SQLITE_IOCAP_ATOMIC = 1;
+  public static final int SQLITE_IOCAP_ATOMIC512 = 2;
+  public static final int SQLITE_IOCAP_ATOMIC1K = 4;
+  public static final int SQLITE_IOCAP_ATOMIC2K = 8;
+  public static final int SQLITE_IOCAP_ATOMIC4K = 16;
+  public static final int SQLITE_IOCAP_ATOMIC8K = 32;
+  public static final int SQLITE_IOCAP_ATOMIC16K = 64;
+  public static final int SQLITE_IOCAP_ATOMIC32K = 128;
+  public static final int SQLITE_IOCAP_ATOMIC64K = 256;
+  public static final int SQLITE_IOCAP_SAFE_APPEND = 512;
+  public static final int SQLITE_IOCAP_SEQUENTIAL = 1024;
+  public static final int SQLITE_IOCAP_UNDELETABLE_WHEN_OPEN = 2048;
+  public static final int SQLITE_IOCAP_POWERSAFE_OVERWRITE = 4096;
+  public static final int SQLITE_IOCAP_IMMUTABLE = 8192;
+  public static final int SQLITE_IOCAP_BATCH_ATOMIC = 16384;
+
+  // limits
+  public static final int SQLITE_LIMIT_LENGTH = 0;
+  public static final int SQLITE_LIMIT_SQL_LENGTH = 1;
+  public static final int SQLITE_LIMIT_COLUMN = 2;
+  public static final int SQLITE_LIMIT_EXPR_DEPTH = 3;
+  public static final int SQLITE_LIMIT_COMPOUND_SELECT = 4;
+  public static final int SQLITE_LIMIT_VDBE_OP = 5;
+  public static final int SQLITE_LIMIT_FUNCTION_ARG = 6;
+  public static final int SQLITE_LIMIT_ATTACHED = 7;
+  public static final int SQLITE_LIMIT_LIKE_PATTERN_LENGTH = 8;
+  public static final int SQLITE_LIMIT_VARIABLE_NUMBER = 9;
+  public static final int SQLITE_LIMIT_TRIGGER_DEPTH = 10;
+  public static final int SQLITE_LIMIT_WORKER_THREADS = 11;
+
+  // open flags
+
+  public static final int SQLITE_OPEN_READONLY     = 0x00000001  /* Ok for sqlite3_open_v2() */;
+  public static final int SQLITE_OPEN_READWRITE    = 0x00000002  /* Ok for sqlite3_open_v2() */;
+  public static final int SQLITE_OPEN_CREATE       = 0x00000004  /* Ok for sqlite3_open_v2() */;
+  //public static final int SQLITE_OPEN_DELETEONCLOSE  = 0x00000008  /* VFS only */;
+  //public static final int SQLITE_OPEN_EXCLUSIVE  = 0x00000010  /* VFS only */;
+  //public static final int SQLITE_OPEN_AUTOPROXY  = 0x00000020  /* VFS only */;
+  public static final int SQLITE_OPEN_URI          = 0x00000040  /* Ok for sqlite3_open_v2() */;
+  public static final int SQLITE_OPEN_MEMORY       = 0x00000080  /* Ok for sqlite3_open_v2() */;
+  //public static final int SQLITE_OPEN_MAIN_DB    = 0x00000100  /* VFS only */;
+  //public static final int SQLITE_OPEN_TEMP_DB    = 0x00000200  /* VFS only */;
+  //public static final int SQLITE_OPEN_TRANSIENT_DB  = 0x00000400  /* VFS only */;
+  //public static final int SQLITE_OPEN_MAIN_JOURNAL  = 0x00000800  /* VFS only */;
+  //public static final int SQLITE_OPEN_TEMP_JOURNAL  = 0x00001000  /* VFS only */;
+  //public static final int SQLITE_OPEN_SUBJOURNAL    = 0x00002000  /* VFS only */;
+  //public static final int SQLITE_OPEN_SUPER_JOURNAL = 0x00004000  /* VFS only */;
+  public static final int SQLITE_OPEN_NOMUTEX       = 0x00008000  /* Ok for sqlite3_open_v2() */;
+  public static final int SQLITE_OPEN_FULLMUTEX     = 0x00010000  /* Ok for sqlite3_open_v2() */;
+  public static final int SQLITE_OPEN_SHAREDCACHE   = 0x00020000  /* Ok for sqlite3_open_v2() */;
+  public static final int SQLITE_OPEN_PRIVATECACHE  = 0x00040000  /* Ok for sqlite3_open_v2() */;
+  //public static final int SQLITE_OPEN_WAL         = 0x00080000  /* VFS only */;
+  public static final int SQLITE_OPEN_NOFOLLOW      = 0x01000000  /* Ok for sqlite3_open_v2() */;
+  public static final int SQLITE_OPEN_EXRESCODE     = 0x02000000  /* Extended result codes */;
+
+  // prepare flags
+  public static final int SQLITE_PREPARE_PERSISTENT = 1;
+  public static final int SQLITE_PREPARE_NO_VTAB = 4;
+
+  // result codes
+  public static final int SQLITE_OK = 0;
+  public static final int SQLITE_ERROR = 1;
+  public static final int SQLITE_INTERNAL = 2;
+  public static final int SQLITE_PERM = 3;
+  public static final int SQLITE_ABORT = 4;
+  public static final int SQLITE_BUSY = 5;
+  public static final int SQLITE_LOCKED = 6;
+  public static final int SQLITE_NOMEM = 7;
+  public static final int SQLITE_READONLY = 8;
+  public static final int SQLITE_INTERRUPT = 9;
+  public static final int SQLITE_IOERR = 10;
+  public static final int SQLITE_CORRUPT = 11;
+  public static final int SQLITE_NOTFOUND = 12;
+  public static final int SQLITE_FULL = 13;
+  public static final int SQLITE_CANTOPEN = 14;
+  public static final int SQLITE_PROTOCOL = 15;
+  public static final int SQLITE_EMPTY = 16;
+  public static final int SQLITE_SCHEMA = 17;
+  public static final int SQLITE_TOOBIG = 18;
+  public static final int SQLITE_CONSTRAINT = 19;
+  public static final int SQLITE_MISMATCH = 20;
+  public static final int SQLITE_MISUSE = 21;
+  public static final int SQLITE_NOLFS = 22;
+  public static final int SQLITE_AUTH = 23;
+  public static final int SQLITE_FORMAT = 24;
+  public static final int SQLITE_RANGE = 25;
+  public static final int SQLITE_NOTADB = 26;
+  public static final int SQLITE_NOTICE = 27;
+  public static final int SQLITE_WARNING = 28;
+  public static final int SQLITE_ROW = 100;
+  public static final int SQLITE_DONE = 101;
+  public static final int SQLITE_ERROR_MISSING_COLLSEQ = 257;
+  public static final int SQLITE_ERROR_RETRY = 513;
+  public static final int SQLITE_ERROR_SNAPSHOT = 769;
+  public static final int SQLITE_IOERR_READ = 266;
+  public static final int SQLITE_IOERR_SHORT_READ = 522;
+  public static final int SQLITE_IOERR_WRITE = 778;
+  public static final int SQLITE_IOERR_FSYNC = 1034;
+  public static final int SQLITE_IOERR_DIR_FSYNC = 1290;
+  public static final int SQLITE_IOERR_TRUNCATE = 1546;
+  public static final int SQLITE_IOERR_FSTAT = 1802;
+  public static final int SQLITE_IOERR_UNLOCK = 2058;
+  public static final int SQLITE_IOERR_RDLOCK = 2314;
+  public static final int SQLITE_IOERR_DELETE = 2570;
+  public static final int SQLITE_IOERR_BLOCKED = 2826;
+  public static final int SQLITE_IOERR_NOMEM = 3082;
+  public static final int SQLITE_IOERR_ACCESS = 3338;
+  public static final int SQLITE_IOERR_CHECKRESERVEDLOCK = 3594;
+  public static final int SQLITE_IOERR_LOCK = 3850;
+  public static final int SQLITE_IOERR_CLOSE = 4106;
+  public static final int SQLITE_IOERR_DIR_CLOSE = 4362;
+  public static final int SQLITE_IOERR_SHMOPEN = 4618;
+  public static final int SQLITE_IOERR_SHMSIZE = 4874;
+  public static final int SQLITE_IOERR_SHMLOCK = 5130;
+  public static final int SQLITE_IOERR_SHMMAP = 5386;
+  public static final int SQLITE_IOERR_SEEK = 5642;
+  public static final int SQLITE_IOERR_DELETE_NOENT = 5898;
+  public static final int SQLITE_IOERR_MMAP = 6154;
+  public static final int SQLITE_IOERR_GETTEMPPATH = 6410;
+  public static final int SQLITE_IOERR_CONVPATH = 6666;
+  public static final int SQLITE_IOERR_VNODE = 6922;
+  public static final int SQLITE_IOERR_AUTH = 7178;
+  public static final int SQLITE_IOERR_BEGIN_ATOMIC = 7434;
+  public static final int SQLITE_IOERR_COMMIT_ATOMIC = 7690;
+  public static final int SQLITE_IOERR_ROLLBACK_ATOMIC = 7946;
+  public static final int SQLITE_IOERR_DATA = 8202;
+  public static final int SQLITE_IOERR_CORRUPTFS = 8458;
+  public static final int SQLITE_LOCKED_SHAREDCACHE = 262;
+  public static final int SQLITE_LOCKED_VTAB = 518;
+  public static final int SQLITE_BUSY_RECOVERY = 261;
+  public static final int SQLITE_BUSY_SNAPSHOT = 517;
+  public static final int SQLITE_BUSY_TIMEOUT = 773;
+  public static final int SQLITE_CANTOPEN_NOTEMPDIR = 270;
+  public static final int SQLITE_CANTOPEN_ISDIR = 526;
+  public static final int SQLITE_CANTOPEN_FULLPATH = 782;
+  public static final int SQLITE_CANTOPEN_CONVPATH = 1038;
+  public static final int SQLITE_CANTOPEN_SYMLINK = 1550;
+  public static final int SQLITE_CORRUPT_VTAB = 267;
+  public static final int SQLITE_CORRUPT_SEQUENCE = 523;
+  public static final int SQLITE_CORRUPT_INDEX = 779;
+  public static final int SQLITE_READONLY_RECOVERY = 264;
+  public static final int SQLITE_READONLY_CANTLOCK = 520;
+  public static final int SQLITE_READONLY_ROLLBACK = 776;
+  public static final int SQLITE_READONLY_DBMOVED = 1032;
+  public static final int SQLITE_READONLY_CANTINIT = 1288;
+  public static final int SQLITE_READONLY_DIRECTORY = 1544;
+  public static final int SQLITE_ABORT_ROLLBACK = 516;
+  public static final int SQLITE_CONSTRAINT_CHECK = 275;
+  public static final int SQLITE_CONSTRAINT_COMMITHOOK = 531;
+  public static final int SQLITE_CONSTRAINT_FOREIGNKEY = 787;
+  public static final int SQLITE_CONSTRAINT_FUNCTION = 1043;
+  public static final int SQLITE_CONSTRAINT_NOTNULL = 1299;
+  public static final int SQLITE_CONSTRAINT_PRIMARYKEY = 1555;
+  public static final int SQLITE_CONSTRAINT_TRIGGER = 1811;
+  public static final int SQLITE_CONSTRAINT_UNIQUE = 2067;
+  public static final int SQLITE_CONSTRAINT_VTAB = 2323;
+  public static final int SQLITE_CONSTRAINT_ROWID = 2579;
+  public static final int SQLITE_CONSTRAINT_PINNED = 2835;
+  public static final int SQLITE_CONSTRAINT_DATATYPE = 3091;
+  public static final int SQLITE_NOTICE_RECOVER_WAL = 283;
+  public static final int SQLITE_NOTICE_RECOVER_ROLLBACK = 539;
+  public static final int SQLITE_WARNING_AUTOINDEX = 284;
+  public static final int SQLITE_AUTH_USER = 279;
+  public static final int SQLITE_OK_LOAD_PERMANENTLY = 256;
+
+  // serialize
+  public static final int SQLITE_SERIALIZE_NOCOPY = 1;
+  public static final int SQLITE_DESERIALIZE_FREEONCLOSE = 1;
+  public static final int SQLITE_DESERIALIZE_READONLY = 4;
+  public static final int SQLITE_DESERIALIZE_RESIZEABLE = 2;
+
+  // session
+  public static final int SQLITE_SESSION_CONFIG_STRMSIZE = 1;
+  public static final int SQLITE_SESSION_OBJCONFIG_SIZE = 1;
+
+  // sqlite3 status
+  public static final int SQLITE_STATUS_MEMORY_USED = 0;
+  public static final int SQLITE_STATUS_PAGECACHE_USED = 1;
+  public static final int SQLITE_STATUS_PAGECACHE_OVERFLOW = 2;
+  public static final int SQLITE_STATUS_MALLOC_SIZE = 5;
+  public static final int SQLITE_STATUS_PARSER_STACK = 6;
+  public static final int SQLITE_STATUS_PAGECACHE_SIZE = 7;
+  public static final int SQLITE_STATUS_MALLOC_COUNT = 9;
+
+  // stmt status
+  public static final int SQLITE_STMTSTATUS_FULLSCAN_STEP = 1;
+  public static final int SQLITE_STMTSTATUS_SORT = 2;
+  public static final int SQLITE_STMTSTATUS_AUTOINDEX = 3;
+  public static final int SQLITE_STMTSTATUS_VM_STEP = 4;
+  public static final int SQLITE_STMTSTATUS_REPREPARE = 5;
+  public static final int SQLITE_STMTSTATUS_RUN = 6;
+  public static final int SQLITE_STMTSTATUS_FILTER_MISS = 7;
+  public static final int SQLITE_STMTSTATUS_FILTER_HIT = 8;
+  public static final int SQLITE_STMTSTATUS_MEMUSED = 99;
+
+  // sync flags
+  public static final int SQLITE_SYNC_NORMAL = 2;
+  public static final int SQLITE_SYNC_FULL = 3;
+  public static final int SQLITE_SYNC_DATAONLY = 16;
+
+  // tracing flags
+  public static final int SQLITE_TRACE_STMT = 1;
+  public static final int SQLITE_TRACE_PROFILE = 2;
+  public static final int SQLITE_TRACE_ROW = 4;
+  public static final int SQLITE_TRACE_CLOSE = 8;
+
+  // transaction state
+  public static final int SQLITE_TXN_NONE = 0;
+  public static final int SQLITE_TXN_READ = 1;
+  public static final int SQLITE_TXN_WRITE = 2;
+
+  // udf flags
+  public static final int SQLITE_DETERMINISTIC =  0x000000800;
+  public static final int SQLITE_DIRECTONLY    =  0x000080000;
+  public static final int SQLITE_SUBTYPE =        0x000100000;
+  public static final int SQLITE_INNOCUOUS     =  0x000200000;
+  public static final int SQLITE_RESULT_SUBTYPE = 0x001000000;
+
+  // virtual tables
+  public static final int SQLITE_INDEX_SCAN_UNIQUE = 1;
+  public static final int SQLITE_INDEX_CONSTRAINT_EQ = 2;
+  public static final int SQLITE_INDEX_CONSTRAINT_GT = 4;
+  public static final int SQLITE_INDEX_CONSTRAINT_LE = 8;
+  public static final int SQLITE_INDEX_CONSTRAINT_LT = 16;
+  public static final int SQLITE_INDEX_CONSTRAINT_GE = 32;
+  public static final int SQLITE_INDEX_CONSTRAINT_MATCH = 64;
+  public static final int SQLITE_INDEX_CONSTRAINT_LIKE = 65;
+  public static final int SQLITE_INDEX_CONSTRAINT_GLOB = 66;
+  public static final int SQLITE_INDEX_CONSTRAINT_REGEXP = 67;
+  public static final int SQLITE_INDEX_CONSTRAINT_NE = 68;
+  public static final int SQLITE_INDEX_CONSTRAINT_ISNOT = 69;
+  public static final int SQLITE_INDEX_CONSTRAINT_ISNOTNULL = 70;
+  public static final int SQLITE_INDEX_CONSTRAINT_ISNULL = 71;
+  public static final int SQLITE_INDEX_CONSTRAINT_IS = 72;
+  public static final int SQLITE_INDEX_CONSTRAINT_LIMIT = 73;
+  public static final int SQLITE_INDEX_CONSTRAINT_OFFSET = 74;
+  public static final int SQLITE_INDEX_CONSTRAINT_FUNCTION = 150;
+  public static final int SQLITE_VTAB_CONSTRAINT_SUPPORT = 1;
+  public static final int SQLITE_VTAB_INNOCUOUS = 2;
+  public static final int SQLITE_VTAB_DIRECTONLY = 3;
+  public static final int SQLITE_VTAB_USES_ALL_SCHEMAS = 4;
+  public static final int SQLITE_ROLLBACK = 1;
+  public static final int SQLITE_FAIL = 3;
+  public static final int SQLITE_REPLACE = 5;
+  static {
+    init();
+  }
+  /* Must come after static init(). */
+  private static final boolean JNI_SUPPORTS_NIO = sqlite3_jni_supports_nio();
+}
diff --git a/ext/jni/src/org/sqlite/jni/capi/CallbackProxy.java b/ext/jni/src/org/sqlite/jni/capi/CallbackProxy.java
new file mode 100644
index 0000000000000000000000000000000000000000..7df748e8d8381868f45ca14481c6c0a135b8ebd8
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/capi/CallbackProxy.java
@@ -0,0 +1,45 @@
+/*
+** 2023-08-25
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the JNI bindings for the sqlite3 C API.
+*/
+package org.sqlite.jni.capi;
+/**
+   This marker interface exists soley for use as a documentation and
+   class-grouping tool. It should be applied to interfaces or
+   classes which have a call() method implementing some specific
+   callback interface on behalf of the C library.
+
+   <p>Unless very explicitely documented otherwise, callbacks must
+   never throw. Any which do throw but should not might trigger debug
+   output regarding the error, but the exception will not be
+   propagated.  For callback interfaces which support returning error
+   info to the core, the JNI binding will convert any exceptions to
+   C-level error information. For callback interfaces which do not
+   support returning error information, all exceptions will
+   necessarily be suppressed in order to retain the C-style no-throw
+   semantics and avoid invoking undefined behavior in the C layer.
+
+   <p>Callbacks of this style follow a common naming convention:
+
+   <p>1) They use the UpperCamelCase form of the C function they're
+   proxying for, minus the {@code sqlite3_} prefix, plus a {@code
+   Callback} suffix. e.g. {@code sqlite3_busy_handler()}'s callback is
+   named {@code BusyHandlerCallback}. Exceptions are made where that
+   would potentially be ambiguous, e.g. {@link ConfigSqllogCallback}
+   instead of {@code ConfigCallback} because the {@code
+   sqlite3_config()} interface may need to support more callback types
+   in the future.
+
+   <p>2) They all have a {@code call()} method but its signature is
+   callback-specific.
+*/
+public interface CallbackProxy {}
diff --git a/ext/jni/src/org/sqlite/jni/capi/CollationCallback.java b/ext/jni/src/org/sqlite/jni/capi/CollationCallback.java
new file mode 100644
index 0000000000000000000000000000000000000000..ed8bd094753d2dc1cbf83c8e80657253cc5fe473
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/capi/CollationCallback.java
@@ -0,0 +1,35 @@
+/*
+** 2023-08-25
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the JNI bindings for the sqlite3 C API.
+*/
+package org.sqlite.jni.capi;
+import org.sqlite.jni.annotation.NotNull;
+
+/**
+   Callback for use with {@link CApi#sqlite3_create_collation}.
+
+   @see AbstractCollationCallback
+*/
+public interface CollationCallback
+  extends CallbackProxy, XDestroyCallback {
+  /**
+     Must compare the given byte arrays and return the result using
+     {@code memcmp()} semantics.
+  */
+  int call(@NotNull byte[] lhs, @NotNull byte[] rhs);
+
+  /**
+     Called by SQLite when the collation is destroyed. If a collation
+     requires custom cleanup, override this method.
+  */
+  void xDestroy();
+}
diff --git a/ext/jni/src/org/sqlite/jni/capi/CollationNeededCallback.java b/ext/jni/src/org/sqlite/jni/capi/CollationNeededCallback.java
new file mode 100644
index 0000000000000000000000000000000000000000..ffd7fa94aba1069af4f63e95482e13d4cb945c4f
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/capi/CollationNeededCallback.java
@@ -0,0 +1,29 @@
+/*
+** 2023-08-25
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the JNI bindings for the sqlite3 C API.
+*/
+package org.sqlite.jni.capi;
+
+/**
+   Callback for use with {@link CApi#sqlite3_collation_needed}.
+*/
+public interface CollationNeededCallback extends CallbackProxy {
+  /**
+     Has the same semantics as the C-level sqlite3_create_collation()
+     callback.
+
+     <p>Because the C API has no mechanism for reporting errors
+     from this callbacks, any exceptions thrown by this callback
+     are suppressed.
+  */
+  void call(sqlite3 db, int eTextRep, String collationName);
+}
diff --git a/ext/jni/src/org/sqlite/jni/capi/CommitHookCallback.java b/ext/jni/src/org/sqlite/jni/capi/CommitHookCallback.java
new file mode 100644
index 0000000000000000000000000000000000000000..e1e55c78d291703e86407c70354ecc9b925c945d
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/capi/CommitHookCallback.java
@@ -0,0 +1,26 @@
+/*
+** 2023-08-25
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the JNI bindings for the sqlite3 C API.
+*/
+package org.sqlite.jni.capi;
+
+/**
+   Callback for use with {@link CApi#sqlite3_commit_hook}.
+*/
+public interface CommitHookCallback extends CallbackProxy {
+  /**
+     Works as documented for the C-level sqlite3_commit_hook()
+     callback. If it throws, the exception is translated into
+     a db-level error.
+  */
+  int call();
+}
diff --git a/ext/jni/src/org/sqlite/jni/capi/ConfigLogCallback.java b/ext/jni/src/org/sqlite/jni/capi/ConfigLogCallback.java
new file mode 100644
index 0000000000000000000000000000000000000000..6513b0730de145b646f7396cc2f3862dd2a4e233
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/capi/ConfigLogCallback.java
@@ -0,0 +1,25 @@
+/*
+** 2023-08-23
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the JNI bindings for the sqlite3 C API.
+*/
+package org.sqlite.jni.capi;
+
+/**
+   A callback for use with sqlite3_config().
+*/
+public interface ConfigLogCallback {
+  /**
+     Must function as described for a C-level callback for
+     {@link CApi#sqlite3_config(ConfigLogCallback)}, with the slight signature change.
+  */
+  void call(int errCode, String msg);
+}
diff --git a/ext/jni/src/org/sqlite/jni/capi/ConfigSqlLogCallback.java b/ext/jni/src/org/sqlite/jni/capi/ConfigSqlLogCallback.java
new file mode 100644
index 0000000000000000000000000000000000000000..a5530b49a460decfab5da8c416efb4bb2931778d
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/capi/ConfigSqlLogCallback.java
@@ -0,0 +1,25 @@
+/*
+** 2023-08-23
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the JNI bindings for the sqlite3 C API.
+*/
+package org.sqlite.jni.capi;
+
+/**
+   A callback for use with sqlite3_config().
+*/
+public interface ConfigSqlLogCallback {
+  /**
+     Must function as described for a C-level callback for
+     {@link CApi#sqlite3_config(ConfigSqlLogCallback)}, with the slight signature change.
+  */
+  void call(sqlite3 db, String msg, int msgType );
+}
diff --git a/ext/jni/src/org/sqlite/jni/capi/NativePointerHolder.java b/ext/jni/src/org/sqlite/jni/capi/NativePointerHolder.java
new file mode 100644
index 0000000000000000000000000000000000000000..e82909e4246d98788c287447d6bb7a228ac3c076
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/capi/NativePointerHolder.java
@@ -0,0 +1,46 @@
+/*
+** 2023-07-21
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the JNI bindings for the sqlite3 C API.
+*/
+package org.sqlite.jni.capi;
+
+/**
+   A helper for passing pointers between JNI C code and Java, in
+   particular for output pointers of high-level object types in the
+   sqlite3 C API, e.g. (sqlite3**) and (sqlite3_stmt**).  This is
+   intended to be subclassed and the ContextType is intended to be the
+   class which is doing the subclassing. The intent of the ContextType
+   is strictly to provide some level of type safety by avoiding that
+   NativePointerHolder is not inadvertently passed to an incompatible
+   function signature.
+
+   These objects do not own the pointer they refer to.  They are
+   intended simply to communicate that pointer between C and Java.
+*/
+public class NativePointerHolder<ContextType> {
+  //! Only set from JNI, where access permissions don't matter.
+  private volatile long nativePointer = 0;
+  /**
+     For use ONLY by package-level APIs which act as proxies for
+     close/finalize operations. Such ops must call this to zero out
+     the pointer so that this object is not carrying a stale
+     pointer. This function returns the prior value of the pointer and
+     sets it to 0.
+  */
+  final long clearNativePointer() {
+    final long rv = nativePointer;
+    nativePointer= 0;
+    return rv;
+  }
+
+  public final long getNativePointer(){ return nativePointer; }
+}
diff --git a/ext/jni/src/org/sqlite/jni/capi/OutputPointer.java b/ext/jni/src/org/sqlite/jni/capi/OutputPointer.java
new file mode 100644
index 0000000000000000000000000000000000000000..7bf7529da13954b63386bd52fd620a154d70827d
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/capi/OutputPointer.java
@@ -0,0 +1,253 @@
+/*
+** 2023-07-21
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the JNI bindings for the sqlite3 C API.
+*/
+package org.sqlite.jni.capi;
+
+/**
+   Helper classes for handling JNI output pointers.
+
+   <p>We do not use a generic OutputPointer<T> because working with those
+   from the native JNI code is unduly quirky due to a lack of
+   autoboxing at that level.
+
+   <p>The usage is similar for all of thes types:
+
+   <pre>{@code
+   OutputPointer.sqlite3 out = new OutputPointer.sqlite3();
+   assert( null==out.get() );
+   int rc = sqlite3_open(":memory:", out);
+   if( 0!=rc ) ... error;
+   assert( null!=out.get() );
+   sqlite3 db = out.take();
+   assert( null==out.get() );
+   }</pre>
+
+   <p>With the minor exception that the primitive types permit direct
+   access to the object's value via the `value` property, whereas the
+   JNI-level opaque types do not permit client-level code to set that
+   property.
+
+   <p>Warning: do not share instances of these classes across
+   threads. Doing so may lead to corrupting sqlite3-internal state.
+*/
+public final class OutputPointer {
+
+  /**
+     Output pointer for use with routines, such as sqlite3_open(),
+     which return a database handle via an output pointer. These
+     pointers can only be set by the JNI layer, not by client-level
+     code.
+  */
+  public static final class sqlite3 {
+    private org.sqlite.jni.capi.sqlite3 value;
+    /** Initializes with a null value. */
+    public sqlite3(){value = null;}
+    /** Sets the current value to null. */
+    public void clear(){value = null;}
+    /** Returns the current value. */
+    public final org.sqlite.jni.capi.sqlite3 get(){return value;}
+    /** Equivalent to calling get() then clear(). */
+    public final org.sqlite.jni.capi.sqlite3 take(){
+      final org.sqlite.jni.capi.sqlite3 v = value;
+      value = null;
+      return v;
+    }
+  }
+
+  /**
+     Output pointer for sqlite3_blob_open(). These
+     pointers can only be set by the JNI layer, not by client-level
+     code.
+  */
+  public static final class sqlite3_blob {
+    private org.sqlite.jni.capi.sqlite3_blob value;
+    /** Initializes with a null value. */
+    public sqlite3_blob(){value = null;}
+    /** Sets the current value to null. */
+    public void clear(){value = null;}
+    /** Returns the current value. */
+    public final org.sqlite.jni.capi.sqlite3_blob get(){return value;}
+    /** Equivalent to calling get() then clear(). */
+    public final org.sqlite.jni.capi.sqlite3_blob take(){
+      final org.sqlite.jni.capi.sqlite3_blob v = value;
+      value = null;
+      return v;
+    }
+  }
+
+  /**
+     Output pointer for use with routines, such as sqlite3_prepare(),
+     which return a statement handle via an output pointer. These
+     pointers can only be set by the JNI layer, not by client-level
+     code.
+  */
+  public static final class sqlite3_stmt {
+    private org.sqlite.jni.capi.sqlite3_stmt value;
+    /** Initializes with a null value. */
+    public sqlite3_stmt(){value = null;}
+    /** Sets the current value to null. */
+    public void clear(){value = null;}
+    /** Returns the current value. */
+    public final org.sqlite.jni.capi.sqlite3_stmt get(){return value;}
+    /** Equivalent to calling get() then clear(). */
+    public final org.sqlite.jni.capi.sqlite3_stmt take(){
+      final org.sqlite.jni.capi.sqlite3_stmt v = value;
+      value = null;
+      return v;
+    }
+  }
+
+  /**
+     Output pointer for use with routines, such as sqlite3_prepupdate_new(),
+     which return a sqlite3_value handle via an output pointer. These
+     pointers can only be set by the JNI layer, not by client-level
+     code.
+  */
+  public static final class sqlite3_value {
+    private org.sqlite.jni.capi.sqlite3_value value;
+    /** Initializes with a null value. */
+    public sqlite3_value(){value = null;}
+    /** Sets the current value to null. */
+    public void clear(){value = null;}
+    /** Returns the current value. */
+    public final org.sqlite.jni.capi.sqlite3_value get(){return value;}
+    /** Equivalent to calling get() then clear(). */
+    public final org.sqlite.jni.capi.sqlite3_value take(){
+      final org.sqlite.jni.capi.sqlite3_value v = value;
+      value = null;
+      return v;
+    }
+  }
+
+  /**
+     Output pointer for use with native routines which return booleans
+     via integer output pointers.
+  */
+  public static final class Bool {
+    /**
+       This is public for ease of use. Accessors are provided for
+       consistency with the higher-level types.
+    */
+    public boolean value;
+    /** Initializes with the value 0. */
+    public Bool(){this(false);}
+    /** Initializes with the value v. */
+    public Bool(boolean v){value = v;}
+    /** Returns the current value. */
+    public final boolean get(){return value;}
+    /** Sets the current value to v. */
+    public final void set(boolean v){value = v;}
+  }
+
+  /**
+     Output pointer for use with native routines which return integers via
+     output pointers.
+  */
+  public static final class Int32 {
+    /**
+       This is public for ease of use. Accessors are provided for
+       consistency with the higher-level types.
+    */
+    public int value;
+    /** Initializes with the value 0. */
+    public Int32(){this(0);}
+    /** Initializes with the value v. */
+    public Int32(int v){value = v;}
+    /** Returns the current value. */
+    public final int get(){return value;}
+    /** Sets the current value to v. */
+    public final void set(int v){value = v;}
+  }
+
+  /**
+     Output pointer for use with native routines which return 64-bit integers
+     via output pointers.
+  */
+  public static final class Int64 {
+    /**
+       This is public for ease of use. Accessors are provided for
+       consistency with the higher-level types.
+    */
+    public long value;
+    /** Initializes with the value 0. */
+    public Int64(){this(0);}
+    /** Initializes with the value v. */
+    public Int64(long v){value = v;}
+    /** Returns the current value. */
+    public final long get(){return value;}
+    /** Sets the current value. */
+    public final void set(long v){value = v;}
+  }
+
+  /**
+     Output pointer for use with native routines which return strings via
+     output pointers.
+  */
+  public static final class String {
+    /**
+       This is public for ease of use. Accessors are provided for
+       consistency with the higher-level types.
+    */
+    public java.lang.String value;
+    /** Initializes with a null value. */
+    public String(){this(null);}
+    /** Initializes with the value v. */
+    public String(java.lang.String v){value = v;}
+    /** Returns the current value. */
+    public final java.lang.String get(){return value;}
+    /** Sets the current value. */
+    public final void set(java.lang.String v){value = v;}
+  }
+
+  /**
+     Output pointer for use with native routines which return byte
+     arrays via output pointers.
+  */
+  public static final class ByteArray {
+    /**
+       This is public for ease of use. Accessors are provided for
+       consistency with the higher-level types.
+    */
+    public byte[] value;
+    /** Initializes with the value null. */
+    public ByteArray(){this(null);}
+    /** Initializes with the value v. */
+    public ByteArray(byte[] v){value = v;}
+    /** Returns the current value. */
+    public final byte[] get(){return value;}
+    /** Sets the current value. */
+    public final void set(byte[] v){value = v;}
+  }
+
+  /**
+     Output pointer for use with native routines which return
+     blobs via java.nio.ByteBuffer.
+
+     See {@link org.sqlite.jni.capi.CApi#sqlite3_jni_supports_nio}
+  */
+  public static final class ByteBuffer {
+    /**
+       This is public for ease of use. Accessors are provided for
+       consistency with the higher-level types.
+    */
+    public java.nio.ByteBuffer value;
+    /** Initializes with the value null. */
+    public ByteBuffer(){this(null);}
+    /** Initializes with the value v. */
+    public ByteBuffer(java.nio.ByteBuffer v){value = v;}
+    /** Returns the current value. */
+    public final java.nio.ByteBuffer get(){return value;}
+    /** Sets the current value. */
+    public final void set(java.nio.ByteBuffer v){value = v;}
+  }
+}
diff --git a/ext/jni/src/org/sqlite/jni/capi/PrepareMultiCallback.java b/ext/jni/src/org/sqlite/jni/capi/PrepareMultiCallback.java
new file mode 100644
index 0000000000000000000000000000000000000000..9f6dd478ce41d1d42e917c7849a815611c42c904
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/capi/PrepareMultiCallback.java
@@ -0,0 +1,81 @@
+/*
+** 2023-09-13
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the JNI bindings for the sqlite3 C API.
+*/
+package org.sqlite.jni.capi;
+
+/**
+   Callback for use with {@link CApi#sqlite3_prepare_multi}.
+*/
+public interface PrepareMultiCallback extends CallbackProxy {
+
+  /**
+     Gets passed a sqlite3_stmt which it may handle in arbitrary ways,
+     transfering ownership of it to this function.
+
+     sqlite3_prepare_multi() will _not_ finalize st - it is up
+     to the call() implementation how st is handled.
+
+     Must return 0 on success or an SQLITE_... code on error. If it
+     throws, sqlite3_prepare_multi() will transform the exception into
+     a db-level error in order to retain the C-style error semantics
+     of the API.
+
+     See the {@link Finalize} class for a wrapper which finalizes the
+     statement after calling a proxy PrepareMultiCallback.
+  */
+  int call(sqlite3_stmt st);
+
+  /**
+     A PrepareMultiCallback impl which wraps a separate impl and finalizes
+     any sqlite3_stmt passed to its callback.
+  */
+  public static final class Finalize implements PrepareMultiCallback {
+    private final PrepareMultiCallback p;
+    /**
+       p is the proxy to call() when this.call() is called.
+    */
+    public Finalize( PrepareMultiCallback p ){
+      this.p = p;
+    }
+    /**
+       Calls the call() method of the proxied callback and either returns its
+       result or propagates an exception. Either way, it passes its argument to
+       sqlite3_finalize() before returning.
+    */
+    @Override public int call(sqlite3_stmt st){
+      try {
+        return this.p.call(st);
+      }finally{
+        CApi.sqlite3_finalize(st);
+      }
+    }
+  }
+
+  /**
+     A PrepareMultiCallback impl which steps entirely through a result set,
+     ignoring all non-error results.
+  */
+  public static final class StepAll implements PrepareMultiCallback {
+    public StepAll(){}
+    /**
+       Calls sqlite3_step() on st until it returns something other than
+       SQLITE_ROW. If the final result is SQLITE_DONE then 0 is returned,
+       else the result of the final step is returned.
+    */
+    @Override public int call(sqlite3_stmt st){
+      int rc = CApi.SQLITE_DONE;
+      while( CApi.SQLITE_ROW == (rc = CApi.sqlite3_step(st)) ){}
+      return CApi.SQLITE_DONE==rc ? 0 : rc;
+    }
+  }
+}
diff --git a/ext/jni/src/org/sqlite/jni/capi/PreupdateHookCallback.java b/ext/jni/src/org/sqlite/jni/capi/PreupdateHookCallback.java
new file mode 100644
index 0000000000000000000000000000000000000000..38f7c5613e573fee22959eb62e15bc9761091ed1
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/capi/PreupdateHookCallback.java
@@ -0,0 +1,27 @@
+/*
+** 2023-08-25
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the JNI bindings for the sqlite3 C API.
+*/
+package org.sqlite.jni.capi;
+
+/**
+   Callback for use with {@link CApi#sqlite3_preupdate_hook}.
+*/
+public interface PreupdateHookCallback extends CallbackProxy {
+  /**
+     Must function as described for the C-level sqlite3_preupdate_hook()
+     callback. If it throws, the exception is translated to a
+     db-level error and the exception is suppressed.
+  */
+  void call(sqlite3 db, int op, String dbName, String dbTable,
+            long iKey1, long iKey2 );
+}
diff --git a/ext/jni/src/org/sqlite/jni/capi/ProgressHandlerCallback.java b/ext/jni/src/org/sqlite/jni/capi/ProgressHandlerCallback.java
new file mode 100644
index 0000000000000000000000000000000000000000..464baa2e3d3e32acc5b3c8b1d144eef2beee9a6d
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/capi/ProgressHandlerCallback.java
@@ -0,0 +1,27 @@
+/*
+** 2023-08-25
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the JNI bindings for the sqlite3 C API.
+*/
+package org.sqlite.jni.capi;
+
+/**
+   Callback for use with {@link CApi#sqlite3_progress_handler}.
+*/
+public interface ProgressHandlerCallback extends CallbackProxy {
+  /**
+     Works as documented for the C-level sqlite3_progress_handler() callback.
+
+     <p>If it throws, the exception message is passed on to the db and
+     the exception is suppressed.
+  */
+  int call();
+}
diff --git a/ext/jni/src/org/sqlite/jni/capi/ResultCode.java b/ext/jni/src/org/sqlite/jni/capi/ResultCode.java
new file mode 100644
index 0000000000000000000000000000000000000000..5a8b2e6a189325c07f4375dc1936d555a4b7b8f0
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/capi/ResultCode.java
@@ -0,0 +1,155 @@
+/*
+** 2023-07-21
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the JNI bindings for the sqlite3 C API.
+*/
+package org.sqlite.jni.capi;
+
+/**
+   This enum contains all of the core and "extended" result codes used
+   by the sqlite3 library. It is provided not for use with the C-style
+   API (with which it won't work) but for higher-level code which may
+   find it useful to map SQLite result codes to human-readable names.
+*/
+public enum ResultCode {
+  SQLITE_OK(CApi.SQLITE_OK),
+  SQLITE_ERROR(CApi.SQLITE_ERROR),
+  SQLITE_INTERNAL(CApi.SQLITE_INTERNAL),
+  SQLITE_PERM(CApi.SQLITE_PERM),
+  SQLITE_ABORT(CApi.SQLITE_ABORT),
+  SQLITE_BUSY(CApi.SQLITE_BUSY),
+  SQLITE_LOCKED(CApi.SQLITE_LOCKED),
+  SQLITE_NOMEM(CApi.SQLITE_NOMEM),
+  SQLITE_READONLY(CApi.SQLITE_READONLY),
+  SQLITE_INTERRUPT(CApi.SQLITE_INTERRUPT),
+  SQLITE_IOERR(CApi.SQLITE_IOERR),
+  SQLITE_CORRUPT(CApi.SQLITE_CORRUPT),
+  SQLITE_NOTFOUND(CApi.SQLITE_NOTFOUND),
+  SQLITE_FULL(CApi.SQLITE_FULL),
+  SQLITE_CANTOPEN(CApi.SQLITE_CANTOPEN),
+  SQLITE_PROTOCOL(CApi.SQLITE_PROTOCOL),
+  SQLITE_EMPTY(CApi.SQLITE_EMPTY),
+  SQLITE_SCHEMA(CApi.SQLITE_SCHEMA),
+  SQLITE_TOOBIG(CApi.SQLITE_TOOBIG),
+  SQLITE_CONSTRAINT(CApi.SQLITE_CONSTRAINT),
+  SQLITE_MISMATCH(CApi.SQLITE_MISMATCH),
+  SQLITE_MISUSE(CApi.SQLITE_MISUSE),
+  SQLITE_NOLFS(CApi.SQLITE_NOLFS),
+  SQLITE_AUTH(CApi.SQLITE_AUTH),
+  SQLITE_FORMAT(CApi.SQLITE_FORMAT),
+  SQLITE_RANGE(CApi.SQLITE_RANGE),
+  SQLITE_NOTADB(CApi.SQLITE_NOTADB),
+  SQLITE_NOTICE(CApi.SQLITE_NOTICE),
+  SQLITE_WARNING(CApi.SQLITE_WARNING),
+  SQLITE_ROW(CApi.SQLITE_ROW),
+  SQLITE_DONE(CApi.SQLITE_DONE),
+  SQLITE_ERROR_MISSING_COLLSEQ(CApi.SQLITE_ERROR_MISSING_COLLSEQ),
+  SQLITE_ERROR_RETRY(CApi.SQLITE_ERROR_RETRY),
+  SQLITE_ERROR_SNAPSHOT(CApi.SQLITE_ERROR_SNAPSHOT),
+  SQLITE_IOERR_READ(CApi.SQLITE_IOERR_READ),
+  SQLITE_IOERR_SHORT_READ(CApi.SQLITE_IOERR_SHORT_READ),
+  SQLITE_IOERR_WRITE(CApi.SQLITE_IOERR_WRITE),
+  SQLITE_IOERR_FSYNC(CApi.SQLITE_IOERR_FSYNC),
+  SQLITE_IOERR_DIR_FSYNC(CApi.SQLITE_IOERR_DIR_FSYNC),
+  SQLITE_IOERR_TRUNCATE(CApi.SQLITE_IOERR_TRUNCATE),
+  SQLITE_IOERR_FSTAT(CApi.SQLITE_IOERR_FSTAT),
+  SQLITE_IOERR_UNLOCK(CApi.SQLITE_IOERR_UNLOCK),
+  SQLITE_IOERR_RDLOCK(CApi.SQLITE_IOERR_RDLOCK),
+  SQLITE_IOERR_DELETE(CApi.SQLITE_IOERR_DELETE),
+  SQLITE_IOERR_BLOCKED(CApi.SQLITE_IOERR_BLOCKED),
+  SQLITE_IOERR_NOMEM(CApi.SQLITE_IOERR_NOMEM),
+  SQLITE_IOERR_ACCESS(CApi.SQLITE_IOERR_ACCESS),
+  SQLITE_IOERR_CHECKRESERVEDLOCK(CApi.SQLITE_IOERR_CHECKRESERVEDLOCK),
+  SQLITE_IOERR_LOCK(CApi.SQLITE_IOERR_LOCK),
+  SQLITE_IOERR_CLOSE(CApi.SQLITE_IOERR_CLOSE),
+  SQLITE_IOERR_DIR_CLOSE(CApi.SQLITE_IOERR_DIR_CLOSE),
+  SQLITE_IOERR_SHMOPEN(CApi.SQLITE_IOERR_SHMOPEN),
+  SQLITE_IOERR_SHMSIZE(CApi.SQLITE_IOERR_SHMSIZE),
+  SQLITE_IOERR_SHMLOCK(CApi.SQLITE_IOERR_SHMLOCK),
+  SQLITE_IOERR_SHMMAP(CApi.SQLITE_IOERR_SHMMAP),
+  SQLITE_IOERR_SEEK(CApi.SQLITE_IOERR_SEEK),
+  SQLITE_IOERR_DELETE_NOENT(CApi.SQLITE_IOERR_DELETE_NOENT),
+  SQLITE_IOERR_MMAP(CApi.SQLITE_IOERR_MMAP),
+  SQLITE_IOERR_GETTEMPPATH(CApi.SQLITE_IOERR_GETTEMPPATH),
+  SQLITE_IOERR_CONVPATH(CApi.SQLITE_IOERR_CONVPATH),
+  SQLITE_IOERR_VNODE(CApi.SQLITE_IOERR_VNODE),
+  SQLITE_IOERR_AUTH(CApi.SQLITE_IOERR_AUTH),
+  SQLITE_IOERR_BEGIN_ATOMIC(CApi.SQLITE_IOERR_BEGIN_ATOMIC),
+  SQLITE_IOERR_COMMIT_ATOMIC(CApi.SQLITE_IOERR_COMMIT_ATOMIC),
+  SQLITE_IOERR_ROLLBACK_ATOMIC(CApi.SQLITE_IOERR_ROLLBACK_ATOMIC),
+  SQLITE_IOERR_DATA(CApi.SQLITE_IOERR_DATA),
+  SQLITE_IOERR_CORRUPTFS(CApi.SQLITE_IOERR_CORRUPTFS),
+  SQLITE_LOCKED_SHAREDCACHE(CApi.SQLITE_LOCKED_SHAREDCACHE),
+  SQLITE_LOCKED_VTAB(CApi.SQLITE_LOCKED_VTAB),
+  SQLITE_BUSY_RECOVERY(CApi.SQLITE_BUSY_RECOVERY),
+  SQLITE_BUSY_SNAPSHOT(CApi.SQLITE_BUSY_SNAPSHOT),
+  SQLITE_BUSY_TIMEOUT(CApi.SQLITE_BUSY_TIMEOUT),
+  SQLITE_CANTOPEN_NOTEMPDIR(CApi.SQLITE_CANTOPEN_NOTEMPDIR),
+  SQLITE_CANTOPEN_ISDIR(CApi.SQLITE_CANTOPEN_ISDIR),
+  SQLITE_CANTOPEN_FULLPATH(CApi.SQLITE_CANTOPEN_FULLPATH),
+  SQLITE_CANTOPEN_CONVPATH(CApi.SQLITE_CANTOPEN_CONVPATH),
+  SQLITE_CANTOPEN_SYMLINK(CApi.SQLITE_CANTOPEN_SYMLINK),
+  SQLITE_CORRUPT_VTAB(CApi.SQLITE_CORRUPT_VTAB),
+  SQLITE_CORRUPT_SEQUENCE(CApi.SQLITE_CORRUPT_SEQUENCE),
+  SQLITE_CORRUPT_INDEX(CApi.SQLITE_CORRUPT_INDEX),
+  SQLITE_READONLY_RECOVERY(CApi.SQLITE_READONLY_RECOVERY),
+  SQLITE_READONLY_CANTLOCK(CApi.SQLITE_READONLY_CANTLOCK),
+  SQLITE_READONLY_ROLLBACK(CApi.SQLITE_READONLY_ROLLBACK),
+  SQLITE_READONLY_DBMOVED(CApi.SQLITE_READONLY_DBMOVED),
+  SQLITE_READONLY_CANTINIT(CApi.SQLITE_READONLY_CANTINIT),
+  SQLITE_READONLY_DIRECTORY(CApi.SQLITE_READONLY_DIRECTORY),
+  SQLITE_ABORT_ROLLBACK(CApi.SQLITE_ABORT_ROLLBACK),
+  SQLITE_CONSTRAINT_CHECK(CApi.SQLITE_CONSTRAINT_CHECK),
+  SQLITE_CONSTRAINT_COMMITHOOK(CApi.SQLITE_CONSTRAINT_COMMITHOOK),
+  SQLITE_CONSTRAINT_FOREIGNKEY(CApi.SQLITE_CONSTRAINT_FOREIGNKEY),
+  SQLITE_CONSTRAINT_FUNCTION(CApi.SQLITE_CONSTRAINT_FUNCTION),
+  SQLITE_CONSTRAINT_NOTNULL(CApi.SQLITE_CONSTRAINT_NOTNULL),
+  SQLITE_CONSTRAINT_PRIMARYKEY(CApi.SQLITE_CONSTRAINT_PRIMARYKEY),
+  SQLITE_CONSTRAINT_TRIGGER(CApi.SQLITE_CONSTRAINT_TRIGGER),
+  SQLITE_CONSTRAINT_UNIQUE(CApi.SQLITE_CONSTRAINT_UNIQUE),
+  SQLITE_CONSTRAINT_VTAB(CApi.SQLITE_CONSTRAINT_VTAB),
+  SQLITE_CONSTRAINT_ROWID(CApi.SQLITE_CONSTRAINT_ROWID),
+  SQLITE_CONSTRAINT_PINNED(CApi.SQLITE_CONSTRAINT_PINNED),
+  SQLITE_CONSTRAINT_DATATYPE(CApi.SQLITE_CONSTRAINT_DATATYPE),
+  SQLITE_NOTICE_RECOVER_WAL(CApi.SQLITE_NOTICE_RECOVER_WAL),
+  SQLITE_NOTICE_RECOVER_ROLLBACK(CApi.SQLITE_NOTICE_RECOVER_ROLLBACK),
+  SQLITE_WARNING_AUTOINDEX(CApi.SQLITE_WARNING_AUTOINDEX),
+  SQLITE_AUTH_USER(CApi.SQLITE_AUTH_USER),
+  SQLITE_OK_LOAD_PERMANENTLY(CApi.SQLITE_OK_LOAD_PERMANENTLY);
+
+  public final int value;
+
+  ResultCode(int rc){
+    value = rc;
+    ResultCodeMap.set(rc, this);
+  }
+
+  /**
+     Returns the entry from this enum for the given result code, or
+     null if no match is found.
+  */
+  public static ResultCode getEntryForInt(int rc){
+    return ResultCodeMap.get(rc);
+  }
+
+  /**
+     Internal level of indirection required because we cannot initialize
+     static enum members in an enum before the enum constructor is
+     invoked.
+  */
+  private static final class ResultCodeMap {
+    private static final java.util.Map<Integer,ResultCode> i2e
+      = new java.util.HashMap<>();
+    private static void set(int rc, ResultCode e){ i2e.put(rc, e); }
+    private static ResultCode get(int rc){ return i2e.get(rc); }
+  }
+
+}
diff --git a/ext/jni/src/org/sqlite/jni/capi/RollbackHookCallback.java b/ext/jni/src/org/sqlite/jni/capi/RollbackHookCallback.java
new file mode 100644
index 0000000000000000000000000000000000000000..cf9c4b6e7a9f5da1267f677c7c8a5caa6ba02de7
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/capi/RollbackHookCallback.java
@@ -0,0 +1,26 @@
+/*
+** 2023-08-25
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the JNI bindings for the sqlite3 C API.
+*/
+package org.sqlite.jni.capi;
+
+/**
+   Callback for use with {@link CApi#sqlite3_rollback_hook}.
+*/
+public interface RollbackHookCallback extends CallbackProxy {
+  /**
+     Must function as documented for the C-level sqlite3_rollback_hook()
+     callback. If it throws, the exception is translated into
+     a db-level error.
+  */
+  void call();
+}
diff --git a/ext/jni/src/org/sqlite/jni/capi/SQLFunction.java b/ext/jni/src/org/sqlite/jni/capi/SQLFunction.java
new file mode 100644
index 0000000000000000000000000000000000000000..7ad1381a7ada40b6d85e7dfa2b695412fdfc6ca8
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/capi/SQLFunction.java
@@ -0,0 +1,36 @@
+/*
+** 2023-07-22
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the JNI bindings for the sqlite3 C API.
+*/
+package org.sqlite.jni.capi;
+
+/**
+   SQLFunction is used in conjunction with the
+   sqlite3_create_function() JNI-bound API to give that native code
+   access to the callback functions needed in order to implement SQL
+   functions in Java.
+
+   <p>
+
+   This class is not used by itself, but is a marker base class. The
+   three UDF types are modelled by the inner classes Scalar,
+   Aggregate<T>, and Window<T>. Most simply, clients may subclass
+   those, or create anonymous classes from them, to implement
+   UDFs. Clients are free to create their own classes for use with
+   UDFs, so long as they conform to the public interfaces defined by
+   those three classes. The JNI layer only actively relies on the
+   SQLFunction base class and the method names and signatures used by
+   the UDF callback interfaces.
+*/
+public interface SQLFunction {
+
+}
diff --git a/ext/jni/src/org/sqlite/jni/capi/SQLTester.java b/ext/jni/src/org/sqlite/jni/capi/SQLTester.java
new file mode 100644
index 0000000000000000000000000000000000000000..c68785e2c388df131d81b238f9834c3f792122c7
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/capi/SQLTester.java
@@ -0,0 +1,1450 @@
+/*
+** 2023-08-08
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file contains the main application entry pointer for the
+** SQLTester framework.
+*/
+package org.sqlite.jni.capi;
+import java.util.List;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.nio.charset.StandardCharsets;
+import java.util.regex.*;
+import static org.sqlite.jni.capi.CApi.*;
+
+/**
+   Modes for how to escape (or not) column values and names from
+   SQLTester.execSql() to the result buffer output.
+*/
+enum ResultBufferMode {
+  //! Do not append to result buffer
+  NONE,
+  //! Append output escaped.
+  ESCAPED,
+  //! Append output as-is
+  ASIS
+};
+
+/**
+   Modes to specify how to emit multi-row output from
+   SQLTester.execSql() to the result buffer.
+*/
+enum ResultRowMode {
+  //! Keep all result rows on one line, space-separated.
+  ONELINE,
+  //! Add a newline between each result row.
+  NEWLINE
+};
+
+/**
+   Base exception type for test-related failures.
+*/
+class SQLTesterException extends RuntimeException {
+  private boolean bFatal = false;
+
+  SQLTesterException(String msg){
+    super(msg);
+  }
+
+  protected SQLTesterException(String msg, boolean fatal){
+    super(msg);
+    bFatal = fatal;
+  }
+
+  /**
+     Indicates whether the framework should consider this exception
+     type as immediately fatal to the test run or not.
+  */
+  final boolean isFatal(){ return bFatal; }
+}
+
+class DbException extends SQLTesterException {
+  DbException(sqlite3 db, int rc, boolean closeDb){
+    super("DB error #"+rc+": "+sqlite3_errmsg(db),true);
+    if( closeDb ) sqlite3_close_v2(db);
+  }
+  DbException(sqlite3 db, int rc){
+    this(db, rc, false);
+  }
+}
+
+/**
+   Generic test-failed exception.
+ */
+class TestScriptFailed extends SQLTesterException {
+  public TestScriptFailed(TestScript ts, String msg){
+    super(ts.getOutputPrefix()+": "+msg, true);
+  }
+}
+
+/**
+   Thrown when an unknown test command is encountered in a script.
+*/
+class UnknownCommand extends SQLTesterException {
+  public UnknownCommand(TestScript ts, String cmd){
+    super(ts.getOutputPrefix()+": unknown command: "+cmd, false);
+  }
+}
+
+/**
+   Thrown when an "incompatible directive" is found in a script.  This
+   can be the presence of a C-preprocessor construct, specific
+   metadata tags within a test script's header, or specific test
+   constructs which are incompatible with this particular
+   implementation.
+*/
+class IncompatibleDirective extends SQLTesterException {
+  public IncompatibleDirective(TestScript ts, String line){
+    super(ts.getOutputPrefix()+": incompatible directive: "+line, false);
+  }
+}
+
+/**
+   Console output utility class.
+*/
+class Outer {
+  private int verbosity = 0;
+
+  static void out(Object val){
+    System.out.print(val);
+  }
+
+  Outer out(Object... vals){
+    for(Object v : vals) out(v);
+    return this;
+  }
+
+  Outer outln(Object... vals){
+    out(vals).out("\n");
+    return this;
+  }
+
+  Outer verbose(Object... vals){
+    if(verbosity>0){
+      out("VERBOSE",(verbosity>1 ? "+: " : ": ")).outln(vals);
+    }
+    return this;
+  }
+
+  void setVerbosity(int level){
+    verbosity = level;
+  }
+
+  int getVerbosity(){
+    return verbosity;
+  }
+
+  public boolean isVerbose(){return verbosity > 0;}
+
+}
+
+/**
+   <p>This class provides an application which aims to implement the
+   rudimentary SQL-driven test tool described in the accompanying
+   {@code test-script-interpreter.md}.
+
+   <p>This class is an internal testing tool, not part of the public
+   interface but is (A) in the same package as the library because
+   access permissions require it to be so and (B) the JDK8 javadoc
+   offers no way to filter individual classes out of the doc
+   generation process (it can only exclude packages, but see (A)).
+
+   <p>An instance of this application provides a core set of services
+   which TestScript instances use for processing testing logic.
+   TestScripts, in turn, delegate the concrete test work to Command
+   objects, which the TestScript parses on their behalf.
+*/
+public class SQLTester {
+  //! List of input script files.
+  private final java.util.List<String> listInFiles = new ArrayList<>();
+  //! Console output utility.
+  private final Outer outer = new Outer();
+  //! Test input buffer.
+  private final StringBuilder inputBuffer = new StringBuilder();
+  //! Test result buffer.
+  private final StringBuilder resultBuffer = new StringBuilder();
+  //! Buffer for REQUIRED_PROPERTIES pragmas.
+  private final StringBuilder dbInitSql = new StringBuilder();
+  //! Output representation of SQL NULL.
+  private String nullView = "nil";
+  //! Total tests run.
+  private int nTotalTest = 0;
+  //! Total test script files run.
+  private int nTestFile = 0;
+  //! Number of scripts which were aborted.
+  private int nAbortedScript = 0;
+  //! Incremented by test case handlers
+  private int nTest = 0;
+  //! True to enable column name output from execSql()
+  private boolean emitColNames;
+  //! True to keep going regardless of how a test fails.
+  private boolean keepGoing = false;
+  //! The list of available db handles.
+  private final sqlite3[] aDb = new sqlite3[7];
+  //! Index into aDb of the current db.
+  private int iCurrentDb = 0;
+  //! Name of the default db, re-created for each script.
+  private final String initialDbName = "test.db";
+
+
+  public SQLTester(){
+    reset();
+  }
+
+  void setVerbosity(int level){
+    this.outer.setVerbosity( level );
+  }
+  int getVerbosity(){
+    return this.outer.getVerbosity();
+  }
+  boolean isVerbose(){
+    return this.outer.isVerbose();
+  }
+
+  void outputColumnNames(boolean b){ emitColNames = b; }
+
+  void verbose(Object... vals){
+    outer.verbose(vals);
+  }
+
+  void outln(Object... vals){
+    outer.outln(vals);
+  }
+
+  void out(Object... vals){
+    outer.out(vals);
+  }
+
+  //! Adds the given test script to the to-test list.
+  public void addTestScript(String filename){
+    listInFiles.add(filename);
+    //verbose("Added file ",filename);
+  }
+
+  private void setupInitialDb() throws DbException {
+    if( null==aDb[0] ){
+      Util.unlink(initialDbName);
+      openDb(0, initialDbName, true);
+    }else{
+      outln("WARNING: setupInitialDb() unexpectedly ",
+            "triggered while it is opened.");
+    }
+  }
+
+  static final String[] startEmoji = {
+    "🚴", "🏄", "🏇", "🤸", "⛹", "🏊", "⛷", "🧗", "🏋"
+  };
+  static final int nStartEmoji = startEmoji.length;
+  static int iStartEmoji = 0;
+
+  private static String nextStartEmoji(){
+    return startEmoji[iStartEmoji++ % nStartEmoji];
+  }
+
+  public void runTests() throws Exception {
+    final long tStart = System.currentTimeMillis();
+    for(String f : listInFiles){
+      reset();
+      ++nTestFile;
+      final TestScript ts = new TestScript(f);
+      outln(nextStartEmoji(), " starting [",f,"]");
+      boolean threw = false;
+      final long timeStart = System.currentTimeMillis();
+      try{
+        ts.run(this);
+      }catch(SQLTesterException e){
+        threw = true;
+        outln("🔥EXCEPTION: ",e.getClass().getSimpleName(),": ",e.getMessage());
+        ++nAbortedScript;
+        if( keepGoing ) outln("Continuing anyway becaure of the keep-going option.");
+        else if( e.isFatal() ) throw e;
+      }finally{
+        final long timeEnd = System.currentTimeMillis();
+        outln("🏁",(threw ? "❌" : "✅")," ",nTest," test(s) in ",
+              (timeEnd-timeStart),"ms.");
+      }
+    }
+    final long tEnd = System.currentTimeMillis();
+    outln("Total run-time: ",(tEnd-tStart),"ms");
+    Util.unlink(initialDbName);
+  }
+
+  private StringBuilder clearBuffer(StringBuilder b){
+    b.setLength(0);;
+    return b;
+  }
+
+  StringBuilder clearInputBuffer(){
+    return clearBuffer(inputBuffer);
+  }
+
+  StringBuilder clearResultBuffer(){
+    return clearBuffer(resultBuffer);
+  }
+
+  StringBuilder getInputBuffer(){ return inputBuffer; }
+
+  void appendInput(String n, boolean addNL){
+    inputBuffer.append(n);
+    if(addNL) inputBuffer.append('\n');
+  }
+
+  void appendResult(String n, boolean addNL){
+    resultBuffer.append(n);
+    if(addNL) resultBuffer.append('\n');
+  }
+
+  void appendDbInitSql(String n) throws DbException {
+    dbInitSql.append(n).append('\n');
+    if( null!=getCurrentDb() ){
+      //outln("RUNNING DB INIT CODE: ",n);
+      execSql(null, true, ResultBufferMode.NONE, null, n);
+    }
+  }
+  String getDbInitSql(){ return dbInitSql.toString(); }
+
+  String getInputText(){ return inputBuffer.toString(); }
+
+  String getResultText(){ return resultBuffer.toString(); }
+
+  private String takeBuffer(StringBuilder b){
+    final String rc = b.toString();
+    clearBuffer(b);
+    return rc;
+  }
+
+  String takeInputBuffer(){ return takeBuffer(inputBuffer); }
+
+  String takeResultBuffer(){ return takeBuffer(resultBuffer); }
+
+  int getCurrentDbId(){ return iCurrentDb; }
+
+  SQLTester affirmDbId(int n) throws IndexOutOfBoundsException {
+    if(n<0 || n>=aDb.length){
+      throw new IndexOutOfBoundsException("illegal db number: "+n);
+    }
+    return this;
+  }
+
+  sqlite3 setCurrentDb(int n) throws Exception{
+    affirmDbId(n);
+    iCurrentDb = n;
+    return this.aDb[n];
+  }
+
+  sqlite3 getCurrentDb(){ return aDb[iCurrentDb]; }
+
+  sqlite3 getDbById(int id) throws Exception{
+    return affirmDbId(id).aDb[id];
+  }
+
+  void closeDb(int id) {
+    final sqlite3 db = affirmDbId(id).aDb[id];
+    if( null != db ){
+      sqlite3_close_v2(db);
+      aDb[id] = null;
+    }
+  }
+
+  void closeDb() { closeDb(iCurrentDb); }
+
+  void closeAllDbs(){
+    for(int i = 0; i<aDb.length; ++i){
+      sqlite3_close_v2(aDb[i]);
+      aDb[i] = null;
+    }
+  }
+
+  sqlite3 openDb(String name, boolean createIfNeeded) throws DbException {
+    closeDb();
+    int flags = SQLITE_OPEN_READWRITE;
+    if( createIfNeeded ) flags |= SQLITE_OPEN_CREATE;
+    final OutputPointer.sqlite3 out = new OutputPointer.sqlite3();
+    int rc = sqlite3_open_v2(name, out, flags, null);
+    final sqlite3 db = out.take();
+    if( 0==rc && dbInitSql.length() > 0){
+      //outln("RUNNING DB INIT CODE: ",dbInitSql.toString());
+      rc = execSql(db, false, ResultBufferMode.NONE,
+                   null, dbInitSql.toString());
+    }
+    if( 0!=rc ){
+      throw new DbException(db, rc, true);
+    }
+    return aDb[iCurrentDb] = db;
+  }
+
+  sqlite3 openDb(int slot, String name, boolean createIfNeeded) throws DbException {
+    affirmDbId(slot);
+    iCurrentDb = slot;
+    return openDb(name, createIfNeeded);
+  }
+
+  /**
+     Resets all tester context state except for that related to
+     tracking running totals.
+  */
+  void reset(){
+    clearInputBuffer();
+    clearResultBuffer();
+    clearBuffer(dbInitSql);
+    closeAllDbs();
+    nTest = 0;
+    nullView = "nil";
+    emitColNames = false;
+    iCurrentDb = 0;
+    //dbInitSql.append("SELECT 1;");
+  }
+
+  void setNullValue(String v){nullView = v;}
+
+  /**
+     If true, encountering an unknown command in a script causes the
+     remainder of the script to be skipped, rather than aborting the
+     whole script run.
+  */
+  boolean skipUnknownCommands(){
+    // Currently hard-coded. Potentially a flag someday.
+    return true;
+  }
+
+  void incrementTestCounter(){ ++nTest; ++nTotalTest; }
+
+  //! "Special" characters - we have to escape output if it contains any.
+  static final Pattern patternSpecial = Pattern.compile(
+    "[\\x00-\\x20\\x22\\x5c\\x7b\\x7d]"
+  );
+  //! Either of '{' or '}'.
+  static final Pattern patternSquiggly = Pattern.compile("[{}]");
+
+  /**
+     Returns v or some escaped form of v, as defined in the tester's
+     spec doc.
+  */
+  String escapeSqlValue(String v){
+    if( "".equals(v) ) return "{}";
+    Matcher m = patternSpecial.matcher(v);
+    if( !m.find() ){
+      return v  /* no escaping needed */;
+    }
+    m = patternSquiggly.matcher(v);
+    if( !m.find() ){
+      return "{"+v+"}";
+    }
+    final StringBuilder sb = new StringBuilder("\"");
+    final int n = v.length();
+    for(int i = 0; i < n; ++i){
+      final char ch = v.charAt(i);
+      switch(ch){
+        case '\\': sb.append("\\\\"); break;
+        case '"': sb.append("\\\""); break;
+        default:
+          //verbose("CHAR ",(int)ch," ",ch," octal=",String.format("\\%03o", (int)ch));
+          if( (int)ch < 32 ) sb.append(String.format("\\%03o", (int)ch));
+          else sb.append(ch);
+          break;
+      }
+    }
+    sb.append("\"");
+    return sb.toString();
+  }
+
+  private void appendDbErr(sqlite3 db, StringBuilder sb, int rc){
+    sb.append(org.sqlite.jni.capi.ResultCode.getEntryForInt(rc)).append(' ');
+    final String msg = escapeSqlValue(sqlite3_errmsg(db));
+    if( '{' == msg.charAt(0) ){
+      sb.append(msg);
+    }else{
+      sb.append('{').append(msg).append('}');
+    }
+  }
+
+  /**
+     Runs SQL on behalf of test commands and outputs the results following
+     the very specific rules of the test framework.
+
+     If db is null, getCurrentDb() is assumed. If throwOnError is true then
+     any db-side error will result in an exception, else they result in
+     the db's result code.
+
+     appendMode specifies how/whether to append results to the result
+     buffer. rowMode specifies whether to output all results in a
+     single line or one line per row. If appendMode is
+     ResultBufferMode.NONE then rowMode is ignored and may be null.
+  */
+  public int execSql(sqlite3 db, boolean throwOnError,
+                     ResultBufferMode appendMode, ResultRowMode rowMode,
+                     String sql) throws SQLTesterException {
+    if( null==db && null==aDb[0] ){
+      // Delay opening of the initial db to enable tests to change its
+      // name and inject on-connect code via, e.g., the MEMDB
+      // directive.  this setup as the potential to misinteract with
+      // auto-extension timing and must be done carefully.
+      setupInitialDb();
+    }
+    final OutputPointer.Int32 oTail = new OutputPointer.Int32();
+    final OutputPointer.sqlite3_stmt outStmt = new OutputPointer.sqlite3_stmt();
+    final byte[] sqlUtf8 = sql.getBytes(StandardCharsets.UTF_8);
+    if( null==db ) db = getCurrentDb();
+    int pos = 0, n = 1;
+    byte[] sqlChunk = sqlUtf8;
+    int rc = 0;
+    sqlite3_stmt stmt = null;
+    int spacing = 0 /* emit a space for --result if>0 */ ;
+    final StringBuilder sb = (ResultBufferMode.NONE==appendMode)
+      ? null : resultBuffer;
+    //outln("sqlChunk len= = ",sqlChunk.length);
+    try{
+      while(pos < sqlChunk.length){
+        if(pos > 0){
+          sqlChunk = Arrays.copyOfRange(sqlChunk, pos,
+                                        sqlChunk.length);
+        }
+        if( 0==sqlChunk.length ) break;
+        rc = sqlite3_prepare_v2(db, sqlChunk, outStmt, oTail);
+        /*outln("PREPARE rc ",rc," oTail=",oTail.get(),": ",
+          new String(sqlChunk,StandardCharsets.UTF_8),"\n<EOSQL>");*/
+        if( 0!=rc ){
+          if(throwOnError){
+            throw new DbException(db, rc);
+          }else if( null!=sb ){
+            appendDbErr(db, sb, rc);
+          }
+          break;
+        }
+        pos = oTail.value;
+        stmt = outStmt.take();
+        if( null == stmt ){
+          // empty statement was parsed.
+          continue;
+        }
+        if( null!=sb ){
+          // Add the output to the result buffer...
+          final int nCol = sqlite3_column_count(stmt);
+          String colName = null, val = null;
+          while( SQLITE_ROW == (rc = sqlite3_step(stmt)) ){
+            for(int i = 0; i < nCol; ++i){
+              if( spacing++ > 0 ) sb.append(' ');
+              if( emitColNames ){
+                colName = sqlite3_column_name(stmt, i);
+                switch(appendMode){
+                  case ASIS:
+                    sb.append( colName );
+                    break;
+                  case ESCAPED:
+                    sb.append( escapeSqlValue(colName) );
+                    break;
+                  default:
+                    throw new SQLTesterException("Unhandled ResultBufferMode: "+appendMode);
+                }
+                sb.append(' ');
+              }
+              val = sqlite3_column_text16(stmt, i);
+              if( null==val ){
+                sb.append( nullView );
+                continue;
+              }
+              switch(appendMode){
+                case ASIS:
+                  sb.append( val );
+                  break;
+                case ESCAPED:
+                  sb.append( escapeSqlValue(val) );
+                  break;
+                default:
+                  throw new SQLTesterException("Unhandled ResultBufferMode: "+appendMode);
+              }
+            }
+            if( ResultRowMode.NEWLINE == rowMode ){
+              spacing = 0;
+              sb.append('\n');
+            }
+          }
+        }else{
+          while( SQLITE_ROW == (rc = sqlite3_step(stmt)) ){}
+        }
+        sqlite3_finalize(stmt);
+        stmt = null;
+        if(SQLITE_ROW==rc || SQLITE_DONE==rc) rc = 0;
+        else if( rc!=0 ){
+          if( null!=sb ){
+            appendDbErr(db, sb, rc);
+          }
+          break;
+        }
+      }
+    }finally{
+      sqlite3_reset(stmt
+        /* In order to trigger an exception in the
+           INSERT...RETURNING locking scenario:
+           https://sqlite.org/forum/forumpost/36f7a2e7494897df */);
+      sqlite3_finalize(stmt);
+    }
+    if( 0!=rc && throwOnError ){
+      throw new DbException(db, rc);
+    }
+    return rc;
+  }
+
+  public static void main(String[] argv) throws Exception{
+    installCustomExtensions();
+    boolean dumpInternals = false;
+    final SQLTester t = new SQLTester();
+    for(String a : argv){
+      if(a.startsWith("-")){
+        final String flag = a.replaceFirst("-+","");
+        if( flag.equals("verbose") ){
+          // Use --verbose up to 3 times
+          t.setVerbosity(t.getVerbosity() + 1);
+        }else if( flag.equals("keep-going") ){
+          t.keepGoing = true;
+        }else if( flag.equals("internals") ){
+          dumpInternals = true;
+        }else{
+          throw new IllegalArgumentException("Unhandled flag: "+flag);
+        }
+        continue;
+      }
+      t.addTestScript(a);
+    }
+    final AutoExtensionCallback ax = new AutoExtensionCallback() {
+        private final SQLTester tester = t;
+        @Override public int call(sqlite3 db){
+          final String init = tester.getDbInitSql();
+          if( !init.isEmpty() ){
+            tester.execSql(db, true, ResultBufferMode.NONE, null, init);
+          }
+          return 0;
+        }
+      };
+    sqlite3_auto_extension(ax);
+    try {
+      t.runTests();
+    }finally{
+      sqlite3_cancel_auto_extension(ax);
+      t.outln("Processed ",t.nTotalTest," test(s) in ",t.nTestFile," file(s).");
+      if( t.nAbortedScript > 0 ){
+        t.outln("Aborted ",t.nAbortedScript," script(s).");
+      }
+      if( dumpInternals ){
+        sqlite3_jni_internal_details();
+      }
+    }
+  }
+
+  /**
+     Internal impl of the public strglob() method. Neither argument
+     may be NULL and both _MUST_ be NUL-terminated.
+  */
+  private static native int strglob(byte[] glob, byte[] txt);
+
+  /**
+     Works essentially the same as sqlite3_strglob() except that the
+     glob character '#' matches a sequence of one or more digits.  It
+     does not match when it appears at the start or middle of a series
+     of digits, e.g. "#23" or "1#3", but will match at the end,
+     e.g. "12#".
+  */
+  static int strglob(String glob, String txt){
+    return strglob(
+      (glob+"\0").getBytes(StandardCharsets.UTF_8),
+      (txt+"\0").getBytes(StandardCharsets.UTF_8)
+    );
+  }
+
+  /**
+     Sets up C-side components needed by the test framework. This must
+     not be called until main() is triggered so that it does not
+     interfere with library clients who don't use this class.
+  */
+  static native void installCustomExtensions();
+  static {
+    System.loadLibrary("sqlite3-jni")
+      /* Interestingly, when SQLTester is the main app, we have to
+         load that lib from here. The same load from CApi does
+         not happen early enough. Without this,
+         installCustomExtensions() is an unresolved symbol. */;
+  }
+
+}
+
+/**
+   General utilities for the SQLTester bits.
+*/
+final class Util {
+
+  //! Throws a new T, appending all msg args into a string for the message.
+  static void toss(Class<? extends Exception> errorType, Object... msg) throws Exception {
+    StringBuilder sb = new StringBuilder();
+    for(Object s : msg) sb.append(s);
+    final java.lang.reflect.Constructor<? extends Exception> ctor =
+      errorType.getConstructor(String.class);
+    throw ctor.newInstance(sb.toString());
+  }
+
+  static void toss(Object... msg) throws Exception{
+    toss(RuntimeException.class, msg);
+  }
+
+  //! Tries to delete the given file, silently ignoring failure.
+  static void unlink(String filename){
+    try{
+      final java.io.File f = new java.io.File(filename);
+      f.delete();
+    }catch(Exception e){
+      /* ignore */
+    }
+  }
+
+  /**
+     Appends all entries in argv[1..end] into a space-separated
+     string, argv[0] is not included because it's expected to be a
+     command name.
+  */
+  static String argvToString(String[] argv){
+    StringBuilder sb = new StringBuilder();
+    for(int i = 1; i < argv.length; ++i ){
+      if( i>1 ) sb.append(" ");
+      sb.append( argv[i] );
+    }
+    return sb.toString();
+  }
+
+}
+
+/**
+   Base class for test script commands. It provides a set of utility
+   APIs for concrete command implementations.
+
+   Each subclass must have a public no-arg ctor and must implement
+   the process() method which is abstract in this class.
+
+   Commands are intended to be stateless, except perhaps for counters
+   and similar internals. Specifically, no state which changes the
+   behavior between any two invocations of process() should be
+   retained.
+*/
+abstract class Command {
+  protected Command(){}
+
+  /**
+     Must process one command-unit of work and either return
+     (on success) or throw (on error).
+
+     The first two arguments specify the context of the test. The TestScript
+     provides the content of the test and the SQLTester providers the sandbox
+     in which that script is being evaluated.
+
+     argv is a list with the command name followed by any arguments to
+     that command. The argcCheck() method from this class provides
+     very basic argc validation.
+  */
+  public abstract void process(
+    SQLTester st, TestScript ts, String[] argv
+  ) throws Exception;
+
+  /**
+     If argv.length-1 (-1 because the command's name is in argv[0]) does not
+     fall in the inclusive range (min,max) then this function throws. Use
+     a max value of -1 to mean unlimited.
+  */
+  protected final void argcCheck(TestScript ts, String[] argv, int min, int max) throws Exception{
+    int argc = argv.length-1;
+    if(argc<min || (max>=0 && argc>max)){
+      if( min==max ){
+        ts.toss(argv[0]," requires exactly ",min," argument(s)");
+      }else if(max>0){
+        ts.toss(argv[0]," requires ",min,"-",max," arguments.");
+      }else{
+        ts.toss(argv[0]," requires at least ",min," arguments.");
+      }
+    }
+  }
+
+  /**
+     Equivalent to argcCheck(argv,argc,argc).
+  */
+  protected final void argcCheck(TestScript ts, String[] argv, int argc) throws Exception{
+    argcCheck(ts, argv, argc, argc);
+  }
+}
+
+//! --close command
+class CloseDbCommand extends Command {
+  public void process(SQLTester t, TestScript ts, String[] argv) throws Exception{
+    argcCheck(ts,argv,0,1);
+    Integer id;
+    if(argv.length>1){
+      String arg = argv[1];
+      if("all".equals(arg)){
+        t.closeAllDbs();
+        return;
+      }
+      else{
+        id = Integer.parseInt(arg);
+      }
+    }else{
+      id = t.getCurrentDbId();
+    }
+    t.closeDb(id);
+  }
+}
+
+//! --column-names command
+class ColumnNamesCommand extends Command {
+  public void process(
+    SQLTester st, TestScript ts, String[] argv
+  ) throws Exception{
+    argcCheck(ts,argv,1);
+    st.outputColumnNames( Integer.parseInt(argv[1])!=0 );
+  }
+}
+
+//! --db command
+class DbCommand extends Command {
+  public void process(SQLTester t, TestScript ts, String[] argv) throws Exception{
+    argcCheck(ts,argv,1);
+    t.setCurrentDb( Integer.parseInt(argv[1]) );
+  }
+}
+
+//! --glob command
+class GlobCommand extends Command {
+  private boolean negate = false;
+  public GlobCommand(){}
+  protected GlobCommand(boolean negate){ this.negate = negate; }
+
+  public void process(SQLTester t, TestScript ts, String[] argv) throws Exception{
+    argcCheck(ts,argv,1,-1);
+    t.incrementTestCounter();
+    final String sql = t.takeInputBuffer();
+    int rc = t.execSql(null, true, ResultBufferMode.ESCAPED,
+                       ResultRowMode.ONELINE, sql);
+    final String result = t.getResultText();
+    final String sArgs = Util.argvToString(argv);
+    //t2.verbose2(argv[0]," rc = ",rc," result buffer:\n", result,"\nargs:\n",sArgs);
+    final String glob = Util.argvToString(argv);
+    rc = SQLTester.strglob(glob, result);
+    if( (negate && 0==rc) || (!negate && 0!=rc) ){
+      ts.toss(argv[0], " mismatch: ", glob," vs input: ",result);
+    }
+  }
+}
+
+//! --json command
+class JsonCommand extends ResultCommand {
+  public JsonCommand(){ super(ResultBufferMode.ASIS); }
+}
+
+//! --json-block command
+class JsonBlockCommand extends TableResultCommand {
+  public JsonBlockCommand(){ super(true); }
+}
+
+//! --new command
+class NewDbCommand extends OpenDbCommand {
+  public NewDbCommand(){ super(true); }
+  public void process(SQLTester t, TestScript ts, String[] argv) throws Exception{
+    if(argv.length>1){
+      Util.unlink(argv[1]);
+    }
+    super.process(t, ts, argv);
+  }
+
+}
+
+//! Placeholder dummy/no-op/unimplemented commands
+class NoopCommand extends Command {
+  private boolean verbose = false;
+  public NoopCommand(boolean verbose){
+    this.verbose = verbose;
+  }
+  public NoopCommand(){}
+  public void process(SQLTester t, TestScript ts, String[] argv) throws Exception{
+    if( this.verbose ){
+      t.outln("Skipping unhandled command: "+argv[0]);
+    }
+  }
+}
+
+//! --notglob command
+class NotGlobCommand extends GlobCommand {
+  public NotGlobCommand(){
+    super(true);
+  }
+}
+
+//! --null command
+class NullCommand extends Command {
+  public void process(
+    SQLTester st, TestScript ts, String[] argv
+  ) throws Exception{
+    argcCheck(ts,argv,1);
+    st.setNullValue( argv[1] );
+  }
+}
+
+//! --open command
+class OpenDbCommand extends Command {
+  private boolean createIfNeeded = false;
+  public OpenDbCommand(){}
+  protected OpenDbCommand(boolean c){createIfNeeded = c;}
+  public void process(SQLTester t, TestScript ts, String[] argv) throws Exception{
+    argcCheck(ts,argv,1);
+    t.openDb(argv[1], createIfNeeded);
+  }
+}
+
+//! --print command
+class PrintCommand extends Command {
+  public void process(
+    SQLTester st, TestScript ts, String[] argv
+  ) throws Exception{
+    st.out(ts.getOutputPrefix(),": ");
+    if( 1==argv.length ){
+      st.out( st.getInputText() );
+    }else{
+      st.outln( Util.argvToString(argv) );
+    }
+  }
+}
+
+//! --result command
+class ResultCommand extends Command {
+  private final ResultBufferMode bufferMode;
+  protected ResultCommand(ResultBufferMode bm){ bufferMode = bm; }
+  public ResultCommand(){ this(ResultBufferMode.ESCAPED); }
+  public void process(SQLTester t, TestScript ts, String[] argv) throws Exception{
+    argcCheck(ts,argv,0,-1);
+    t.incrementTestCounter();
+    final String sql = t.takeInputBuffer();
+    //ts.verbose2(argv[0]," SQL =\n",sql);
+    int rc = t.execSql(null, false, bufferMode, ResultRowMode.ONELINE, sql);
+    final String result = t.getResultText().trim();
+    final String sArgs = argv.length>1 ? Util.argvToString(argv) : "";
+    if( !result.equals(sArgs) ){
+      t.outln(argv[0]," FAILED comparison. Result buffer:\n",
+              result,"\nExpected result:\n",sArgs);
+      ts.toss(argv[0]+" comparison failed.");
+    }
+  }
+}
+
+//! --run command
+class RunCommand extends Command {
+  public void process(SQLTester t, TestScript ts, String[] argv) throws Exception{
+    argcCheck(ts,argv,0,1);
+    final sqlite3 db = (1==argv.length)
+      ? t.getCurrentDb() : t.getDbById( Integer.parseInt(argv[1]) );
+    final String sql = t.takeInputBuffer();
+    final int rc = t.execSql(db, false, ResultBufferMode.NONE,
+                             ResultRowMode.ONELINE, sql);
+    if( 0!=rc && t.isVerbose() ){
+      String msg = sqlite3_errmsg(db);
+      ts.verbose1(argv[0]," non-fatal command error #",rc,": ",
+                  msg,"\nfor SQL:\n",sql);
+    }
+  }
+}
+
+//! --tableresult command
+class TableResultCommand extends Command {
+  private final boolean jsonMode;
+  protected TableResultCommand(boolean jsonMode){ this.jsonMode = jsonMode; }
+  public TableResultCommand(){ this(false); }
+  public void process(SQLTester t, TestScript ts, String[] argv) throws Exception{
+    argcCheck(ts,argv,0);
+    t.incrementTestCounter();
+    String body = ts.fetchCommandBody(t);
+    if( null==body ) ts.toss("Missing ",argv[0]," body.");
+    body = body.trim();
+    if( !body.endsWith("\n--end") ){
+      ts.toss(argv[0], " must be terminated with --end.");
+    }else{
+      body = body.substring(0, body.length()-6);
+    }
+    final String[] globs = body.split("\\s*\\n\\s*");
+    if( globs.length < 1 ){
+      ts.toss(argv[0], " requires 1 or more ",
+              (jsonMode ? "json snippets" : "globs"),".");
+    }
+    final String sql = t.takeInputBuffer();
+    t.execSql(null, true,
+              jsonMode ? ResultBufferMode.ASIS : ResultBufferMode.ESCAPED,
+              ResultRowMode.NEWLINE, sql);
+    final String rbuf = t.getResultText();
+    final String[] res = rbuf.split("\n");
+    if( res.length != globs.length ){
+      ts.toss(argv[0], " failure: input has ", res.length,
+              " row(s) but expecting ",globs.length);
+    }
+    for(int i = 0; i < res.length; ++i){
+      final String glob = globs[i].replaceAll("\\s+"," ").trim();
+      //ts.verbose2(argv[0]," <<",glob,">> vs <<",res[i],">>");
+      if( jsonMode ){
+        if( !glob.equals(res[i]) ){
+          ts.toss(argv[0], " json <<",glob, ">> does not match: <<",
+                  res[i],">>");
+        }
+      }else if( 0 != SQLTester.strglob(glob, res[i]) ){
+        ts.toss(argv[0], " glob <<",glob,">> does not match: <<",res[i],">>");
+      }
+    }
+  }
+}
+
+//! --testcase command
+class TestCaseCommand extends Command {
+  public void process(SQLTester t, TestScript ts, String[] argv) throws Exception{
+    argcCheck(ts,argv,1);
+    ts.setTestCaseName(argv[1]);
+    t.clearResultBuffer();
+    t.clearInputBuffer();
+  }
+}
+
+//! --verbosity command
+class VerbosityCommand extends Command {
+  public void process(SQLTester t, TestScript ts, String[] argv) throws Exception{
+    argcCheck(ts,argv,1);
+    ts.setVerbosity( Integer.parseInt(argv[1]) );
+  }
+}
+
+class CommandDispatcher {
+
+  private static java.util.Map<String,Command> commandMap =
+    new java.util.HashMap<>();
+
+  /**
+     Returns a (cached) instance mapped to name, or null if no match
+     is found.
+  */
+  static Command getCommandByName(String name){
+    Command rv = commandMap.get(name);
+    if( null!=rv ) return rv;
+    switch(name){
+      case "close":        rv = new CloseDbCommand(); break;
+      case "column-names": rv = new ColumnNamesCommand(); break;
+      case "db":           rv = new DbCommand(); break;
+      case "glob":         rv = new GlobCommand(); break;
+      case "json":         rv = new JsonCommand(); break;
+      case "jsonglob":     rv = new NoopCommand(true); break;
+      case "json-block":   rv = new JsonBlockCommand(); break;
+      case "new":          rv = new NewDbCommand(); break;
+      case "notglob":      rv = new NotGlobCommand(); break;
+      case "null":         rv = new NullCommand(); break;
+      case "oom":          rv = new NoopCommand(); break;
+      case "open":         rv = new OpenDbCommand(); break;
+      case "print":        rv = new PrintCommand(); break;
+      case "result":       rv = new ResultCommand(); break;
+      case "run":          rv = new RunCommand(); break;
+      case "stmt-cache":   rv = new NoopCommand(); break;
+      case "tableresult":  rv = new TableResultCommand(); break;
+      case "testcase":     rv = new TestCaseCommand(); break;
+      case "verbosity":    rv = new VerbosityCommand(); break;
+      default: rv = null; break;
+    }
+    if( null!=rv ) commandMap.put(name, rv);
+    return rv;
+  }
+
+  /**
+     Treats argv[0] as a command name, looks it up with
+     getCommandByName(), and calls process() on that instance, passing
+     it arguments given to this function.
+  */
+  static void dispatch(SQLTester tester, TestScript ts, String[] argv) throws Exception{
+    final Command cmd = getCommandByName(argv[0]);
+    if(null == cmd){
+      throw new UnknownCommand(ts, argv[0]);
+    }
+    cmd.process(tester, ts, argv);
+  }
+}
+
+
+/**
+   This class represents a single test script. It handles (or
+   delegates) its the reading-in and parsing, but the details of
+   evaluation are delegated elsewhere.
+*/
+class TestScript {
+  //! input file
+  private String filename = null;
+  //! Name pulled from the SCRIPT_MODULE_NAME directive of the file
+  private String moduleName = null;
+  //! Current test case name.
+  private String testCaseName = null;
+  //! Content buffer state.
+  private final Cursor cur = new Cursor();
+  //! Utility for console output.
+  private final Outer outer = new Outer();
+
+  //! File content and parse state.
+  private static final class Cursor {
+    private final StringBuilder sb = new StringBuilder();
+    byte[] src = null;
+    //! Current position in this.src.
+    int pos = 0;
+    //! Current line number. Starts at 0 for internal reasons and will
+    // line up with 1-based reality once parsing starts.
+    int lineNo = 0 /* yes, zero */;
+    //! Putback value for this.pos.
+    int putbackPos = 0;
+    //! Putback line number
+    int putbackLineNo = 0;
+    //! Peeked-to pos, used by peekLine() and consumePeeked().
+    int peekedPos = 0;
+    //! Peeked-to line number.
+    int peekedLineNo = 0;
+
+    //! Restore parsing state to the start of the stream.
+    void rewind(){
+      sb.setLength(0);
+      pos = lineNo = putbackPos = putbackLineNo = peekedPos = peekedLineNo = 0
+        /* kinda missing memset() about now. */;
+    }
+  }
+
+  private byte[] readFile(String filename) throws Exception {
+    return java.nio.file.Files.readAllBytes(java.nio.file.Paths.get(filename));
+  }
+
+  /**
+     Initializes the script with the content of the given file.
+     Throws if it cannot read the file.
+  */
+  public TestScript(String filename) throws Exception{
+    this.filename = filename;
+    setVerbosity(2);
+    cur.src = readFile(filename);
+  }
+
+  public String getFilename(){
+    return filename;
+  }
+
+  public String getModuleName(){
+    return moduleName;
+  }
+
+  /**
+     Verbosity level 0 produces no debug/verbose output. Level 1 produces
+     some and level 2 produces more.
+   */
+  public void setVerbosity(int level){
+    outer.setVerbosity(level);
+  }
+
+  public String getOutputPrefix(){
+    String rc = "["+(moduleName==null ? "<unnamed>" : moduleName)+"]";
+    if( null!=testCaseName ) rc += "["+testCaseName+"]";
+    if( null!=filename ) rc += "["+filename+"]";
+    return rc + " line "+ cur.lineNo;
+  }
+
+  static final String[] verboseLabel = {"🔈",/*"🔉",*/"🔊","📢"};
+  //! Output vals only if level<=current verbosity level.
+  private TestScript verboseN(int level, Object... vals){
+    final int verbosity = outer.getVerbosity();
+    if(verbosity>=level){
+      outer.out( verboseLabel[level-1], getOutputPrefix(), " ",level,": "
+      ).outln(vals);
+    }
+    return this;
+  }
+
+  TestScript verbose1(Object... vals){return verboseN(1,vals);}
+  TestScript verbose2(Object... vals){return verboseN(2,vals);}
+  TestScript verbose3(Object... vals){return verboseN(3,vals);}
+
+  private void reset(){
+    testCaseName = null;
+    cur.rewind();
+  }
+
+  void setTestCaseName(String n){ testCaseName = n; }
+
+  /**
+     Returns the next line from the buffer, minus the trailing EOL.
+
+     Returns null when all input is consumed. Throws if it reads
+     illegally-encoded input, e.g. (non-)characters in the range
+     128-256.
+  */
+  String getLine(){
+    if( cur.pos==cur.src.length ){
+      return null /* EOF */;
+    }
+    cur.putbackPos = cur.pos;
+    cur.putbackLineNo = cur.lineNo;
+    cur.sb.setLength(0);
+    final boolean skipLeadingWs = false;
+    byte b = 0, prevB = 0;
+    int i = cur.pos;
+    if(skipLeadingWs) {
+      /* Skip any leading spaces, including newlines. This will eliminate
+         blank lines. */
+      for(; i < cur.src.length; ++i, prevB=b){
+        b = cur.src[i];
+        switch((int)b){
+          case 32/*space*/: case 9/*tab*/: case 13/*CR*/: continue;
+          case 10/*NL*/: ++cur.lineNo; continue;
+          default: break;
+        }
+        break;
+      }
+      if( i==cur.src.length ){
+        return null /* EOF */;
+      }
+    }
+    boolean doBreak = false;
+    final byte[] aChar = {0,0,0,0} /* multi-byte char buffer */;
+    int nChar = 0 /* number of bytes in the char */;
+    for(; i < cur.src.length && !doBreak; ++i){
+      b = cur.src[i];
+      switch( (int)b ){
+        case 13/*CR*/: continue;
+        case 10/*NL*/:
+          ++cur.lineNo;
+          if(cur.sb.length()>0) doBreak = true;
+          // Else it's an empty string
+          break;
+        default:
+          /* Multi-byte chars need to be gathered up and appended at
+             one time. Appending individual bytes to the StringBuffer
+             appends their integer value. */
+          nChar = 1;
+          switch( b & 0xF0 ){
+            case 0xC0: nChar = 2; break;
+            case 0xE0: nChar = 3; break;
+            case 0xF0: nChar = 4; break;
+            default:
+              if( b > 127 ) this.toss("Invalid character (#"+(int)b+").");
+              break;
+          }
+          if( 1==nChar ){
+            cur.sb.append((char)b);
+          }else{
+            for(int x = 0; x < nChar; ++x) aChar[x] = cur.src[i+x];
+            cur.sb.append(new String(Arrays.copyOf(aChar, nChar),
+                                      StandardCharsets.UTF_8));
+            i += nChar-1;
+          }
+          break;
+      }
+    }
+    cur.pos = i;
+    final String rv = cur.sb.toString();
+    if( i==cur.src.length && 0==rv.length() ){
+      return null /* EOF */;
+    }
+    return rv;
+  }/*getLine()*/
+
+  /**
+     Fetches the next line then resets the cursor to its pre-call
+     state. consumePeeked() can be used to consume this peeked line
+     without having to re-parse it.
+  */
+  String peekLine(){
+    final int oldPos = cur.pos;
+    final int oldPB = cur.putbackPos;
+    final int oldPBL = cur.putbackLineNo;
+    final int oldLine = cur.lineNo;
+    try{ return getLine(); }
+    finally{
+      cur.peekedPos = cur.pos;
+      cur.peekedLineNo = cur.lineNo;
+      cur.pos = oldPos;
+      cur.lineNo = oldLine;
+      cur.putbackPos = oldPB;
+      cur.putbackLineNo = oldPBL;
+    }
+  }
+
+  /**
+     Only valid after calling peekLine() and before calling getLine().
+     This places the cursor to the position it would have been at had
+     the peekLine() had been fetched with getLine().
+  */
+  void consumePeeked(){
+    cur.pos = cur.peekedPos;
+    cur.lineNo = cur.peekedLineNo;
+  }
+
+  /**
+     Restores the cursor to the position it had before the previous
+     call to getLine().
+  */
+  void putbackLine(){
+    cur.pos = cur.putbackPos;
+    cur.lineNo = cur.putbackLineNo;
+  }
+
+  private boolean checkRequiredProperties(SQLTester t, String[] props) throws SQLTesterException{
+    if( true ) return false;
+    int nOk = 0;
+    for(String rp : props){
+      verbose1("REQUIRED_PROPERTIES: ",rp);
+      switch(rp){
+        case "RECURSIVE_TRIGGERS":
+          t.appendDbInitSql("pragma recursive_triggers=on;");
+          ++nOk;
+          break;
+        case "TEMPSTORE_FILE":
+          /* This _assumes_ that the lib is built with SQLITE_TEMP_STORE=1 or 2,
+             which we just happen to know is the case */
+          t.appendDbInitSql("pragma temp_store=1;");
+          ++nOk;
+          break;
+        case "TEMPSTORE_MEM":
+          /* This _assumes_ that the lib is built with SQLITE_TEMP_STORE=1 or 2,
+             which we just happen to know is the case */
+          t.appendDbInitSql("pragma temp_store=0;");
+          ++nOk;
+          break;
+        case "AUTOVACUUM":
+          t.appendDbInitSql("pragma auto_vacuum=full;");
+          ++nOk;
+        case "INCRVACUUM":
+          t.appendDbInitSql("pragma auto_vacuum=incremental;");
+          ++nOk;
+        default:
+          break;
+      }
+    }
+    return props.length == nOk;
+  }
+
+  private static final Pattern patternRequiredProperties =
+    Pattern.compile(" REQUIRED_PROPERTIES:[ \\t]*(\\S.*)\\s*$");
+  private static final Pattern patternScriptModuleName =
+    Pattern.compile(" SCRIPT_MODULE_NAME:[ \\t]*(\\S+)\\s*$");
+  private static final Pattern patternMixedModuleName =
+    Pattern.compile(" ((MIXED_)?MODULE_NAME):[ \\t]*(\\S+)\\s*$");
+  private static final Pattern patternCommand =
+    Pattern.compile("^--(([a-z-]+)( .*)?)$");
+
+  /**
+     Looks for "directives." If a compatible one is found, it is
+     processed and this function returns. If an incompatible one is found,
+     a description of it is returned and processing of the test must
+     end immediately.
+  */
+  private void checkForDirective(
+    SQLTester tester, String line
+  ) throws IncompatibleDirective {
+    if(line.startsWith("#")){
+      throw new IncompatibleDirective(this, "C-preprocessor input: "+line);
+    }else if(line.startsWith("---")){
+      new IncompatibleDirective(this, "triple-dash: "+line);
+    }
+    Matcher m = patternScriptModuleName.matcher(line);
+    if( m.find() ){
+      moduleName = m.group(1);
+      return;
+    }
+    m = patternRequiredProperties.matcher(line);
+    if( m.find() ){
+      final String rp = m.group(1);
+      if( ! checkRequiredProperties( tester, rp.split("\\s+") ) ){
+        throw new IncompatibleDirective(this, "REQUIRED_PROPERTIES: "+rp);
+      }
+    }
+    m = patternMixedModuleName.matcher(line);
+    if( m.find() ){
+      throw new IncompatibleDirective(this, m.group(1)+": "+m.group(3));
+    }
+    if( line.indexOf("\n|")>=0 ){
+      throw new IncompatibleDirective(this, "newline-pipe combination.");
+    }
+    return;
+  }
+
+  boolean isCommandLine(String line, boolean checkForImpl){
+    final Matcher m = patternCommand.matcher(line);
+    boolean rc = m.find();
+    if( rc && checkForImpl ){
+      rc = null!=CommandDispatcher.getCommandByName(m.group(2));
+    }
+    return rc;
+  }
+
+  /**
+     If line looks like a command, returns an argv for that command
+     invocation, else returns null.
+  */
+  String[] getCommandArgv(String line){
+    final Matcher m = patternCommand.matcher(line);
+    return m.find() ? m.group(1).trim().split("\\s+") : null;
+  }
+
+  /**
+     Fetches lines until the next recognized command. Throws if
+     checkForDirective() does.  Returns null if there is no input or
+     it's only whitespace. The returned string retains all whitespace.
+
+     Note that "subcommands", --command-like constructs in the body
+     which do not match a known command name are considered to be
+     content, not commands.
+  */
+  String fetchCommandBody(SQLTester tester){
+    final StringBuilder sb = new StringBuilder();
+    String line;
+    while( (null != (line = peekLine())) ){
+      checkForDirective(tester, line);
+      if( isCommandLine(line, true) ) break;
+      else {
+        sb.append(line).append("\n");
+        consumePeeked();
+      }
+    }
+    line = sb.toString();
+    return line.trim().isEmpty() ? null : line;
+  }
+
+  private void processCommand(SQLTester t, String[] argv) throws Exception{
+    verbose1("running command: ",argv[0], " ", Util.argvToString(argv));
+    if(outer.getVerbosity()>1){
+      final String input = t.getInputText();
+      if( !input.isEmpty() ) verbose3("Input buffer = ",input);
+    }
+    CommandDispatcher.dispatch(t, this, argv);
+  }
+
+  void toss(Object... msg) throws TestScriptFailed {
+    StringBuilder sb = new StringBuilder();
+    for(Object s : msg) sb.append(s);
+    throw new TestScriptFailed(this, sb.toString());
+  }
+
+  /**
+     Runs this test script in the context of the given tester object.
+  */
+  public boolean run(SQLTester tester) throws Exception {
+    reset();
+    setVerbosity(tester.getVerbosity());
+    String line, directive;
+    String[] argv;
+    while( null != (line = getLine()) ){
+      verbose3("input line: ",line);
+      checkForDirective(tester, line);
+      argv = getCommandArgv(line);
+      if( null!=argv ){
+        processCommand(tester, argv);
+        continue;
+      }
+      tester.appendInput(line,true);
+    }
+    return true;
+  }
+}
diff --git a/ext/jni/src/org/sqlite/jni/capi/ScalarFunction.java b/ext/jni/src/org/sqlite/jni/capi/ScalarFunction.java
new file mode 100644
index 0000000000000000000000000000000000000000..95541bdcbaf86b79ac34089a8840b5b5164dce65
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/capi/ScalarFunction.java
@@ -0,0 +1,33 @@
+/*
+** 2023-08-25
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the JNI bindings for the sqlite3 C API.
+*/
+package org.sqlite.jni.capi;
+
+
+/**
+   A SQLFunction implementation for scalar functions.
+*/
+public abstract class ScalarFunction implements SQLFunction {
+  /**
+     As for the xFunc() argument of the C API's
+     sqlite3_create_function(). If this function throws, it is
+     translated into an sqlite3_result_error().
+  */
+  public abstract void xFunc(sqlite3_context cx, sqlite3_value[] args);
+
+  /**
+     Optionally override to be notified when the UDF is finalized by
+     SQLite. This default implementation does nothing.
+  */
+  public void xDestroy() {}
+}
diff --git a/ext/jni/src/org/sqlite/jni/capi/TableColumnMetadata.java b/ext/jni/src/org/sqlite/jni/capi/TableColumnMetadata.java
new file mode 100644
index 0000000000000000000000000000000000000000..d8b6226ac9540406aa822e0973e14f32215b727d
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/capi/TableColumnMetadata.java
@@ -0,0 +1,35 @@
+/*
+** 2023-07-21
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the JNI bindings for the sqlite3 C API.
+*/
+package org.sqlite.jni.capi;
+
+/**
+   A wrapper object for use with sqlite3_table_column_metadata().
+   They are populated only via that interface.
+*/
+public final class TableColumnMetadata {
+  OutputPointer.Bool pNotNull = new OutputPointer.Bool();
+  OutputPointer.Bool pPrimaryKey = new OutputPointer.Bool();
+  OutputPointer.Bool pAutoinc = new OutputPointer.Bool();
+  OutputPointer.String pzCollSeq = new OutputPointer.String();
+  OutputPointer.String pzDataType = new OutputPointer.String();
+
+  public TableColumnMetadata(){
+  }
+
+  public String getDataType(){ return pzDataType.value; }
+  public String getCollation(){ return pzCollSeq.value; }
+  public boolean isNotNull(){ return pNotNull.value; }
+  public boolean isPrimaryKey(){ return pPrimaryKey.value; }
+  public boolean isAutoincrement(){ return pAutoinc.value; }
+}
diff --git a/ext/jni/src/org/sqlite/jni/capi/Tester1.java b/ext/jni/src/org/sqlite/jni/capi/Tester1.java
new file mode 100644
index 0000000000000000000000000000000000000000..05b1cfeaedf2728db74ab16d31d44ce15320fed0
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/capi/Tester1.java
@@ -0,0 +1,2194 @@
+/*
+** 2023-07-21
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file contains a set of tests for the sqlite3 JNI bindings.
+*/
+package org.sqlite.jni.capi;
+import static org.sqlite.jni.capi.CApi.*;
+import java.nio.charset.StandardCharsets;
+import java.util.Arrays;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.Future;
+
+/**
+   An annotation for Tester1 tests which we do not want to run in
+   reflection-driven test mode because either they are not suitable
+   for multi-threaded threaded mode or we have to control their execution
+   order.
+*/
+@java.lang.annotation.Retention(java.lang.annotation.RetentionPolicy.RUNTIME)
+@java.lang.annotation.Target({java.lang.annotation.ElementType.METHOD})
+@interface ManualTest{}
+/**
+   Annotation for Tester1 tests which mark those which must be skipped
+   in multi-threaded mode.
+*/
+@java.lang.annotation.Retention(java.lang.annotation.RetentionPolicy.RUNTIME)
+@java.lang.annotation.Target({java.lang.annotation.ElementType.METHOD})
+@interface SingleThreadOnly{}
+
+/**
+   Annotation for Tester1 tests which must only be run if
+   sqlite3_jni_supports_nio() is true.
+*/
+@java.lang.annotation.Retention(java.lang.annotation.RetentionPolicy.RUNTIME)
+@java.lang.annotation.Target({java.lang.annotation.ElementType.METHOD})
+@interface RequiresJniNio{}
+
+public class Tester1 implements Runnable {
+  //! True when running in multi-threaded mode.
+  private static boolean mtMode = false;
+  //! True to sleep briefly between tests.
+  private static boolean takeNaps = false;
+  //! True to shuffle the order of the tests.
+  private static boolean shuffle = false;
+  //! True to dump the list of to-run tests to stdout.
+  private static int listRunTests = 0;
+  //! True to squelch all out() and outln() output.
+  private static boolean quietMode = false;
+  //! Total number of runTests() calls.
+  private static int nTestRuns = 0;
+  //! List of test*() methods to run.
+  private static List<java.lang.reflect.Method> testMethods = null;
+  //! List of exceptions collected by run()
+  private static List<Exception> listErrors = new ArrayList<>();
+  private static final class Metrics {
+    //! Number of times createNewDb() (or equivalent) is invoked.
+    volatile int dbOpen = 0;
+  }
+
+  private Integer tId;
+
+  Tester1(Integer id){
+    tId = id;
+  }
+
+  static final Metrics metrics = new Metrics();
+
+  public static synchronized void outln(){
+    if( !quietMode ){
+      System.out.println("");
+    }
+  }
+
+  public static synchronized void outPrefix(){
+    if( !quietMode ){
+      System.out.print(Thread.currentThread().getName()+": ");
+    }
+  }
+
+  public static synchronized void outln(Object val){
+    if( !quietMode ){
+      outPrefix();
+      System.out.println(val);
+    }
+  }
+
+  public static synchronized void out(Object val){
+    if( !quietMode ){
+      System.out.print(val);
+    }
+  }
+
+  @SuppressWarnings("unchecked")
+  public static synchronized void out(Object... vals){
+    if( !quietMode ){
+      outPrefix();
+      for(Object v : vals) out(v);
+    }
+  }
+
+  @SuppressWarnings("unchecked")
+  public static synchronized void outln(Object... vals){
+    if( !quietMode ){
+      out(vals); out("\n");
+    }
+  }
+
+  static volatile int affirmCount = 0;
+  public static synchronized int affirm(Boolean v, String comment){
+    ++affirmCount;
+    if( false ) assert( v /* prefer assert over exception if it's enabled because
+                 the JNI layer sometimes has to suppress exceptions,
+                 so they might be squelched on their way back to the
+                 top. */);
+    if( !v ) throw new RuntimeException(comment);
+    return affirmCount;
+  }
+
+  public static void affirm(Boolean v){
+    affirm(v, "Affirmation failed.");
+  }
+
+  @SingleThreadOnly /* because it's thread-agnostic */
+  private void test1(){
+    affirm(sqlite3_libversion_number() == SQLITE_VERSION_NUMBER);
+  }
+
+  public static sqlite3 createNewDb(){
+    final OutputPointer.sqlite3 out = new OutputPointer.sqlite3();
+    int rc = sqlite3_open(":memory:", out);
+    ++metrics.dbOpen;
+    sqlite3 db = out.take();
+    if( 0!=rc ){
+      final String msg =
+        null==db ? sqlite3_errstr(rc) : sqlite3_errmsg(db);
+      sqlite3_close(db);
+      throw new RuntimeException("Opening db failed: "+msg);
+    }
+    affirm( null == out.get() );
+    affirm( 0 != db.getNativePointer() );
+    rc = sqlite3_busy_timeout(db, 2000);
+    affirm( 0 == rc );
+    return db;
+  }
+
+  public static void execSql(sqlite3 db, String[] sql){
+    execSql(db, String.join("", sql));
+  }
+
+  public static int execSql(sqlite3 db, boolean throwOnError, String sql){
+    OutputPointer.Int32 oTail = new OutputPointer.Int32();
+    final byte[] sqlUtf8 = sql.getBytes(StandardCharsets.UTF_8);
+    int pos = 0, n = 1;
+    byte[] sqlChunk = sqlUtf8;
+    int rc = 0;
+    sqlite3_stmt stmt = null;
+    final OutputPointer.sqlite3_stmt outStmt = new OutputPointer.sqlite3_stmt();
+    while(pos < sqlChunk.length){
+      if(pos > 0){
+        sqlChunk = Arrays.copyOfRange(sqlChunk, pos,
+                                      sqlChunk.length);
+      }
+      if( 0==sqlChunk.length ) break;
+      rc = sqlite3_prepare_v2(db, sqlChunk, outStmt, oTail);
+      if(throwOnError) affirm(0 == rc);
+      else if( 0!=rc ) break;
+      pos = oTail.value;
+      stmt = outStmt.take();
+      if( null == stmt ){
+        // empty statement was parsed.
+        continue;
+      }
+      affirm(0 != stmt.getNativePointer());
+      while( SQLITE_ROW == (rc = sqlite3_step(stmt)) ){
+      }
+      sqlite3_finalize(stmt);
+      affirm(0 == stmt.getNativePointer());
+      if(0!=rc && SQLITE_ROW!=rc && SQLITE_DONE!=rc){
+        break;
+      }
+    }
+    sqlite3_finalize(stmt);
+    if(SQLITE_ROW==rc || SQLITE_DONE==rc) rc = 0;
+    if( 0!=rc && throwOnError){
+      throw new RuntimeException("db op failed with rc="
+                                 +rc+": "+sqlite3_errmsg(db));
+    }
+    return rc;
+  }
+
+  public static void execSql(sqlite3 db, String sql){
+    execSql(db, true, sql);
+  }
+
+  public static sqlite3_stmt prepare(sqlite3 db, boolean throwOnError, String sql){
+    final OutputPointer.sqlite3_stmt outStmt = new OutputPointer.sqlite3_stmt();
+    int rc = sqlite3_prepare_v2(db, sql, outStmt);
+    if( throwOnError ){
+      affirm( 0 == rc );
+    }
+    final sqlite3_stmt rv = outStmt.take();
+    affirm( null == outStmt.get() );
+    if( throwOnError ){
+      affirm( 0 != rv.getNativePointer() );
+    }
+    return rv;
+  }
+
+  public static sqlite3_stmt prepare(sqlite3 db, String sql){
+    return prepare(db, true, sql);
+  }
+
+  private void showCompileOption(){
+    int i = 0;
+    String optName;
+    outln("compile options:");
+    for( ; null != (optName = sqlite3_compileoption_get(i)); ++i){
+      outln("\t"+optName+"\t (used="+
+            sqlite3_compileoption_used(optName)+")");
+    }
+  }
+
+  private void testCompileOption(){
+    int i = 0;
+    String optName;
+    for( ; null != (optName = sqlite3_compileoption_get(i)); ++i){
+    }
+    affirm( i > 10 );
+    affirm( null==sqlite3_compileoption_get(-1) );
+  }
+
+  private void testOpenDb1(){
+    final OutputPointer.sqlite3 out = new OutputPointer.sqlite3();
+    int rc = sqlite3_open(":memory:", out);
+    ++metrics.dbOpen;
+    sqlite3 db = out.get();
+    affirm(0 == rc);
+    affirm(db.getNativePointer()!=0);
+    sqlite3_db_config(db, SQLITE_DBCONFIG_DEFENSIVE, 1, null)
+      /* This function has different mangled names in jdk8 vs jdk19,
+         and this call is here to ensure that the build fails
+         if it cannot find both names. */;
+
+    affirm( 0==sqlite3_db_readonly(db,"main") );
+    affirm( 0==sqlite3_db_readonly(db,null) );
+    affirm( 0>sqlite3_db_readonly(db,"nope") );
+    affirm( 0>sqlite3_db_readonly(null,null) );
+    affirm( 0==sqlite3_last_insert_rowid(null) );
+
+    // These interrupt checks are only to make sure that the JNI binding
+    // has the proper exported symbol names. They don't actually test
+    // anything useful.
+    affirm( !sqlite3_is_interrupted(db) );
+    sqlite3_interrupt(db);
+    affirm( sqlite3_is_interrupted(db) );
+    sqlite3_close_v2(db);
+    affirm(0 == db.getNativePointer());
+  }
+
+  private void testOpenDb2(){
+    final OutputPointer.sqlite3 out = new OutputPointer.sqlite3();
+    int rc = sqlite3_open_v2(":memory:", out,
+                             SQLITE_OPEN_READWRITE
+                             | SQLITE_OPEN_CREATE, null);
+    ++metrics.dbOpen;
+    affirm(0 == rc);
+    sqlite3 db = out.get();
+    affirm(0 != db.getNativePointer());
+    sqlite3_close_v2(db);
+    affirm(0 == db.getNativePointer());
+  }
+
+  private void testPrepare123(){
+    sqlite3 db = createNewDb();
+    int rc;
+    final OutputPointer.sqlite3_stmt outStmt = new OutputPointer.sqlite3_stmt();
+    rc = sqlite3_prepare(db, "CREATE TABLE t1(a);", outStmt);
+    affirm(0 == rc);
+    sqlite3_stmt stmt = outStmt.take();
+    affirm(0 != stmt.getNativePointer());
+    affirm( !sqlite3_stmt_readonly(stmt) );
+    affirm( db == sqlite3_db_handle(stmt) );
+    rc = sqlite3_step(stmt);
+    affirm(SQLITE_DONE == rc);
+    sqlite3_finalize(stmt);
+    affirm( null == sqlite3_db_handle(stmt) );
+    affirm(0 == stmt.getNativePointer());
+
+    { /* Demonstrate how to use the "zTail" option of
+         sqlite3_prepare() family of functions. */
+      OutputPointer.Int32 oTail = new OutputPointer.Int32();
+      final byte[] sqlUtf8 =
+        "CREATE TABLE t2(a); INSERT INTO t2(a) VALUES(1),(2),(3)"
+        .getBytes(StandardCharsets.UTF_8);
+      int pos = 0, n = 1;
+      byte[] sqlChunk = sqlUtf8;
+      while(pos < sqlChunk.length){
+        if(pos > 0){
+          sqlChunk = Arrays.copyOfRange(sqlChunk, pos, sqlChunk.length);
+        }
+        //outln("SQL chunk #"+n+" length = "+sqlChunk.length+", pos = "+pos);
+        if( 0==sqlChunk.length ) break;
+        rc = sqlite3_prepare_v2(db, sqlChunk, outStmt, oTail);
+        affirm(0 == rc);
+        stmt = outStmt.get();
+        pos = oTail.value;
+        /*outln("SQL tail pos = "+pos+". Chunk = "+
+              (new String(Arrays.copyOfRange(sqlChunk,0,pos),
+              StandardCharsets.UTF_8)));*/
+        switch(n){
+          case 1: affirm(19 == pos); break;
+          case 2: affirm(36 == pos); break;
+          default: affirm( false /* can't happen */ );
+
+        }
+        ++n;
+        affirm(0 != stmt.getNativePointer());
+        rc = sqlite3_step(stmt);
+        affirm(SQLITE_DONE == rc);
+        sqlite3_finalize(stmt);
+        affirm(0 == stmt.getNativePointer());
+      }
+    }
+
+
+    rc = sqlite3_prepare_v3(db, "INSERT INTO t2(a) VALUES(1),(2),(3)",
+                            0, outStmt);
+    affirm(0 == rc);
+    stmt = outStmt.get();
+    affirm(0 != stmt.getNativePointer());
+    sqlite3_finalize(stmt);
+    affirm(0 == stmt.getNativePointer() );
+
+    affirm( 0==sqlite3_errcode(db) );
+    stmt = sqlite3_prepare(db, "intentional error");
+    affirm( null==stmt );
+    affirm( 0!=sqlite3_errcode(db) );
+    affirm( 0==sqlite3_errmsg(db).indexOf("near \"intentional\"") );
+    sqlite3_finalize(stmt);
+    stmt = sqlite3_prepare(db, "/* empty input*/\n-- comments only");
+    affirm( null==stmt );
+    affirm( 0==sqlite3_errcode(db) );
+    sqlite3_close_v2(db);
+  }
+
+  private void testBindFetchInt(){
+    sqlite3 db = createNewDb();
+    execSql(db, "CREATE TABLE t(a)");
+
+    sqlite3_stmt stmt = prepare(db, "INSERT INTO t(a) VALUES(:a);");
+    affirm(1 == sqlite3_bind_parameter_count(stmt));
+    final int paramNdx = sqlite3_bind_parameter_index(stmt, ":a");
+    affirm(1 == paramNdx);
+    affirm( ":a".equals(sqlite3_bind_parameter_name(stmt, paramNdx)));
+    int total1 = 0;
+    long rowid = -1;
+    int changes = sqlite3_changes(db);
+    int changesT = sqlite3_total_changes(db);
+    long changes64 = sqlite3_changes64(db);
+    long changesT64 = sqlite3_total_changes64(db);
+    int rc;
+    for(int i = 99; i < 102; ++i ){
+      total1 += i;
+      rc = sqlite3_bind_int(stmt, paramNdx, i);
+      affirm(0 == rc);
+      rc = sqlite3_step(stmt);
+      sqlite3_reset(stmt);
+      affirm(SQLITE_DONE == rc);
+      long x = sqlite3_last_insert_rowid(db);
+      affirm(x > rowid);
+      rowid = x;
+    }
+    sqlite3_finalize(stmt);
+    affirm(300 == total1);
+    affirm(sqlite3_changes(db) > changes);
+    affirm(sqlite3_total_changes(db) > changesT);
+    affirm(sqlite3_changes64(db) > changes64);
+    affirm(sqlite3_total_changes64(db) > changesT64);
+    stmt = prepare(db, "SELECT a FROM t ORDER BY a DESC;");
+    affirm( sqlite3_stmt_readonly(stmt) );
+    affirm( !sqlite3_stmt_busy(stmt) );
+    if( sqlite3_compileoption_used("ENABLE_COLUMN_METADATA") ){
+      /* Unlike in native C code, JNI won't trigger an
+         UnsatisfiedLinkError until these are called (on Linux, at
+         least). */
+      affirm("t".equals(sqlite3_column_table_name(stmt,0)));
+      affirm("main".equals(sqlite3_column_database_name(stmt,0)));
+      affirm("a".equals(sqlite3_column_origin_name(stmt,0)));
+    }
+
+    int total2 = 0;
+    while( SQLITE_ROW == sqlite3_step(stmt) ){
+      affirm( sqlite3_stmt_busy(stmt) );
+      total2 += sqlite3_column_int(stmt, 0);
+      sqlite3_value sv = sqlite3_column_value(stmt, 0);
+      affirm( null != sv );
+      affirm( 0 != sv.getNativePointer() );
+      affirm( SQLITE_INTEGER == sqlite3_value_type(sv) );
+    }
+    affirm( !sqlite3_stmt_busy(stmt) );
+    sqlite3_finalize(stmt);
+    affirm(total1 == total2);
+
+    // sqlite3_value_frombind() checks...
+    stmt = prepare(db, "SELECT 1, ?");
+    sqlite3_bind_int(stmt, 1, 2);
+    rc = sqlite3_step(stmt);
+    affirm( SQLITE_ROW==rc );
+    affirm( !sqlite3_value_frombind(sqlite3_column_value(stmt, 0)) );
+    affirm( sqlite3_value_frombind(sqlite3_column_value(stmt, 1)) );
+    sqlite3_finalize(stmt);
+
+    sqlite3_close_v2(db);
+    affirm(0 == db.getNativePointer());
+  }
+
+  private void testBindFetchInt64(){
+    try (sqlite3 db = createNewDb()){
+      execSql(db, "CREATE TABLE t(a)");
+      sqlite3_stmt stmt = prepare(db, "INSERT INTO t(a) VALUES(?);");
+      long total1 = 0;
+      for(long i = 0xffffffff; i < 0xffffffff + 3; ++i ){
+        total1 += i;
+        sqlite3_bind_int64(stmt, 1, i);
+        sqlite3_step(stmt);
+        sqlite3_reset(stmt);
+      }
+      sqlite3_finalize(stmt);
+      stmt = prepare(db, "SELECT a FROM t ORDER BY a DESC;");
+      long total2 = 0;
+      while( SQLITE_ROW == sqlite3_step(stmt) ){
+        total2 += sqlite3_column_int64(stmt, 0);
+      }
+      sqlite3_finalize(stmt);
+      affirm(total1 == total2);
+      //sqlite3_close_v2(db);
+    }
+  }
+
+  private void testBindFetchDouble(){
+    try (sqlite3 db = createNewDb()){
+      execSql(db, "CREATE TABLE t(a)");
+      sqlite3_stmt stmt = prepare(db, "INSERT INTO t(a) VALUES(?);");
+      double total1 = 0;
+      for(double i = 1.5; i < 5.0; i = i + 1.0 ){
+        total1 += i;
+        sqlite3_bind_double(stmt, 1, i);
+        sqlite3_step(stmt);
+        sqlite3_reset(stmt);
+      }
+      sqlite3_finalize(stmt);
+      stmt = prepare(db, "SELECT a FROM t ORDER BY a DESC;");
+      double total2 = 0;
+      int counter = 0;
+      while( SQLITE_ROW == sqlite3_step(stmt) ){
+        ++counter;
+        total2 += sqlite3_column_double(stmt, 0);
+      }
+      affirm(4 == counter);
+      sqlite3_finalize(stmt);
+      affirm(total2<=total1+0.01 && total2>=total1-0.01);
+      //sqlite3_close_v2(db);
+    }
+  }
+
+  private void testBindFetchText(){
+    sqlite3 db = createNewDb();
+    execSql(db, "CREATE TABLE t(a)");
+    sqlite3_stmt stmt = prepare(db, "INSERT INTO t(a) VALUES(?);");
+    String[] list1 = { "hell🤩", "w😃rld", "!🤩" };
+    int rc;
+    int n = 0;
+    for( String e : list1 ){
+      rc = (0==n)
+        ? sqlite3_bind_text(stmt, 1, e)
+        : sqlite3_bind_text16(stmt, 1, e);
+      affirm(0 == rc);
+      rc = sqlite3_step(stmt);
+      affirm(SQLITE_DONE==rc);
+      sqlite3_reset(stmt);
+    }
+    sqlite3_finalize(stmt);
+    stmt = prepare(db, "SELECT a FROM t ORDER BY a DESC;");
+    StringBuilder sbuf = new StringBuilder();
+    n = 0;
+    final boolean tryNio = sqlite3_jni_supports_nio();
+    while( SQLITE_ROW == sqlite3_step(stmt) ){
+      final sqlite3_value sv = sqlite3_value_dup(sqlite3_column_value(stmt,0));
+      final String txt = sqlite3_column_text16(stmt, 0);
+      sbuf.append( txt );
+      affirm( txt.equals(new String(
+                           sqlite3_column_text(stmt, 0),
+                           StandardCharsets.UTF_8
+                         )) );
+      affirm( txt.length() < sqlite3_value_bytes(sv) );
+      affirm( txt.equals(new String(
+                           sqlite3_value_text(sv),
+                           StandardCharsets.UTF_8)) );
+      affirm( txt.length() == sqlite3_value_bytes16(sv)/2 );
+      affirm( txt.equals(sqlite3_value_text16(sv)) );
+      if( tryNio ){
+        java.nio.ByteBuffer bu = sqlite3_value_nio_buffer(sv);
+        byte ba[] = sqlite3_value_blob(sv);
+        affirm( ba.length == bu.capacity() );
+        int i = 0;
+        for( byte b : ba ){
+          affirm( b == bu.get(i++) );
+        }
+      }
+      sqlite3_value_free(sv);
+      ++n;
+    }
+    sqlite3_finalize(stmt);
+    affirm(3 == n);
+    affirm("w😃rldhell🤩!🤩".equals(sbuf.toString()));
+
+    try( sqlite3_stmt stmt2 = prepare(db, "SELECT ?, ?") ){
+      rc = sqlite3_bind_text(stmt2, 1, "");
+      affirm( 0==rc );
+      rc = sqlite3_bind_text(stmt2, 2, (String)null);
+      affirm( 0==rc );
+      rc = sqlite3_step(stmt2);
+      affirm( SQLITE_ROW==rc );
+      byte[] colBa = sqlite3_column_text(stmt2, 0);
+      affirm( 0==colBa.length );
+      colBa = sqlite3_column_text(stmt2, 1);
+      affirm( null==colBa );
+      //sqlite3_finalize(stmt);
+    }
+
+    if(true){
+      sqlite3_close_v2(db);
+    }else{
+      // Let the Object.finalize() override deal with it.
+    }
+  }
+
+  private void testBindFetchBlob(){
+    sqlite3 db = createNewDb();
+    execSql(db, "CREATE TABLE t(a)");
+    sqlite3_stmt stmt = prepare(db, "INSERT INTO t(a) VALUES(?);");
+    byte[] list1 = { 0x32, 0x33, 0x34 };
+    int rc = sqlite3_bind_blob(stmt, 1, list1);
+    affirm( 0==rc );
+    rc = sqlite3_step(stmt);
+    affirm(SQLITE_DONE == rc);
+    sqlite3_finalize(stmt);
+    stmt = prepare(db, "SELECT a FROM t ORDER BY a DESC;");
+    int n = 0;
+    int total = 0;
+    while( SQLITE_ROW == sqlite3_step(stmt) ){
+      byte[] blob = sqlite3_column_blob(stmt, 0);
+      affirm(3 == blob.length);
+      int i = 0;
+      for(byte b : blob){
+        affirm(b == list1[i++]);
+        total += b;
+      }
+      ++n;
+    }
+    sqlite3_finalize(stmt);
+    affirm(1 == n);
+    affirm(total == 0x32 + 0x33 + 0x34);
+    sqlite3_close_v2(db);
+  }
+
+  @RequiresJniNio
+  private void testBindByteBuffer(){
+    /* TODO: these tests need to be much more extensive to check the
+       begin/end range handling. */
+
+    java.nio.ByteBuffer zeroCheck =
+      java.nio.ByteBuffer.allocateDirect(0);
+    affirm( null != zeroCheck );
+    zeroCheck = null;
+    sqlite3 db = createNewDb();
+    execSql(db, "CREATE TABLE t(a)");
+
+    final java.nio.ByteBuffer buf = java.nio.ByteBuffer.allocateDirect(10);
+    buf.put((byte)0x31)/*note that we'll skip this one*/
+      .put((byte)0x32)
+      .put((byte)0x33)
+      .put((byte)0x34)
+      .put((byte)0x35)/*we'll skip this one too*/;
+
+    final int expectTotal = buf.get(1) + buf.get(2) + buf.get(3);
+    sqlite3_stmt stmt = prepare(db, "INSERT INTO t(a) VALUES(?);");
+    affirm( SQLITE_ERROR == sqlite3_bind_blob(stmt, 1, buf, -1, 0),
+            "Buffer offset may not be negative." );
+    affirm( 0 == sqlite3_bind_blob(stmt, 1, buf, 1, 3) );
+    affirm( SQLITE_DONE == sqlite3_step(stmt) );
+    sqlite3_finalize(stmt);
+    stmt = prepare(db, "SELECT a FROM t;");
+    int total = 0;
+    affirm( SQLITE_ROW == sqlite3_step(stmt) );
+    byte blob[] = sqlite3_column_blob(stmt, 0);
+    java.nio.ByteBuffer nioBlob =
+      sqlite3_column_nio_buffer(stmt, 0);
+    affirm(3 == blob.length);
+    affirm(blob.length == nioBlob.capacity());
+    affirm(blob.length == nioBlob.limit());
+    int i = 0;
+    for(byte b : blob){
+      affirm( i<=3 );
+      affirm(b == buf.get(1 + i));
+      affirm(b == nioBlob.get(i));
+      ++i;
+      total += b;
+    }
+    affirm( SQLITE_DONE == sqlite3_step(stmt) );
+    sqlite3_finalize(stmt);
+    affirm(total == expectTotal);
+
+    SQLFunction func =
+      new ScalarFunction(){
+        public void xFunc(sqlite3_context cx, sqlite3_value[] args){
+          sqlite3_result_blob(cx, buf, 1, 3);
+        }
+      };
+
+    affirm( 0 == sqlite3_create_function(db, "myfunc", -1, SQLITE_UTF8, func) );
+    stmt = prepare(db, "SELECT myfunc()");
+    affirm( SQLITE_ROW == sqlite3_step(stmt) );
+    blob = sqlite3_column_blob(stmt, 0);
+    affirm(3 == blob.length);
+    i = 0;
+    total = 0;
+    for(byte b : blob){
+      affirm( i<=3 );
+      affirm(b == buf.get(1 + i++));
+      total += b;
+    }
+    affirm( SQLITE_DONE == sqlite3_step(stmt) );
+    sqlite3_finalize(stmt);
+    affirm(total == expectTotal);
+
+    sqlite3_close_v2(db);
+  }
+
+  private void testSql(){
+    sqlite3 db = createNewDb();
+    sqlite3_stmt stmt = prepare(db, "SELECT 1");
+    affirm( "SELECT 1".equals(sqlite3_sql(stmt)) );
+    sqlite3_finalize(stmt);
+    stmt = prepare(db, "SELECT ?");
+    sqlite3_bind_text(stmt, 1, "hell😃");
+    final String expect = "SELECT 'hell😃'";
+    affirm( expect.equals(sqlite3_expanded_sql(stmt)) );
+    String n = sqlite3_normalized_sql(stmt);
+    affirm( null==n || "SELECT?;".equals(n) );
+    sqlite3_finalize(stmt);
+    sqlite3_close(db);
+  }
+
+  private void testCollation(){
+    final sqlite3 db = createNewDb();
+    execSql(db, "CREATE TABLE t(a); INSERT INTO t(a) VALUES('a'),('b'),('c')");
+    final ValueHolder<Integer> xDestroyCalled = new ValueHolder<>(0);
+    final CollationCallback myCollation = new CollationCallback() {
+        private String myState =
+          "this is local state. There is much like it, but this is mine.";
+        @Override
+        // Reverse-sorts its inputs...
+        public int call(byte[] lhs, byte[] rhs){
+          int len = lhs.length > rhs.length ? rhs.length : lhs.length;
+          int c = 0, i = 0;
+          for(i = 0; i < len; ++i){
+            c = lhs[i] - rhs[i];
+            if(0 != c) break;
+          }
+          if(0==c){
+            if(i < lhs.length) c = 1;
+            else if(i < rhs.length) c = -1;
+          }
+          return -c;
+        }
+        @Override
+        public void xDestroy() {
+          // Just demonstrates that xDestroy is called.
+          ++xDestroyCalled.value;
+        }
+      };
+    final CollationNeededCallback collLoader = new CollationNeededCallback(){
+        @Override
+        public void call(sqlite3 dbArg, int eTextRep, String collationName){
+          affirm(dbArg == db/* as opposed to a temporary object*/);
+          sqlite3_create_collation(dbArg, "reversi", eTextRep, myCollation);
+        }
+      };
+    int rc = sqlite3_collation_needed(db, collLoader);
+    affirm( 0 == rc );
+    rc = sqlite3_collation_needed(db, collLoader);
+    affirm( 0 == rc /* Installing the same object again is a no-op */);
+    sqlite3_stmt stmt = prepare(db, "SELECT a FROM t ORDER BY a COLLATE reversi");
+    int counter = 0;
+    while( SQLITE_ROW == sqlite3_step(stmt) ){
+      final String val = sqlite3_column_text16(stmt, 0);
+      ++counter;
+      //outln("REVERSI'd row#"+counter+": "+val);
+      switch(counter){
+        case 1: affirm("c".equals(val)); break;
+        case 2: affirm("b".equals(val)); break;
+        case 3: affirm("a".equals(val)); break;
+      }
+    }
+    affirm(3 == counter);
+    sqlite3_finalize(stmt);
+    stmt = prepare(db, "SELECT a FROM t ORDER BY a");
+    counter = 0;
+    while( SQLITE_ROW == sqlite3_step(stmt) ){
+      final String val = sqlite3_column_text16(stmt, 0);
+      ++counter;
+      //outln("Non-REVERSI'd row#"+counter+": "+val);
+      switch(counter){
+        case 3: affirm("c".equals(val)); break;
+        case 2: affirm("b".equals(val)); break;
+        case 1: affirm("a".equals(val)); break;
+      }
+    }
+    affirm(3 == counter);
+    sqlite3_finalize(stmt);
+    affirm( 0 == xDestroyCalled.value );
+    rc = sqlite3_collation_needed(db, null);
+    affirm( 0 == rc );
+    sqlite3_close_v2(db);
+    affirm( 0 == db.getNativePointer() );
+    affirm( 1 == xDestroyCalled.value );
+  }
+
+  @SingleThreadOnly /* because it's thread-agnostic */
+  private void testToUtf8(){
+    /**
+       https://docs.oracle.com/javase/8/docs/api/java/nio/charset/Charset.html
+
+       Let's ensure that we can convert to standard UTF-8 in Java code
+       (noting that the JNI native API has no way to do this).
+    */
+    final byte[] ba = "a \0 b".getBytes(StandardCharsets.UTF_8);
+    affirm( 5 == ba.length /* as opposed to 6 in modified utf-8 */);
+  }
+
+  private void testStatus(){
+    final OutputPointer.Int64 cur64 = new OutputPointer.Int64();
+    final OutputPointer.Int64 high64 = new OutputPointer.Int64();
+    final OutputPointer.Int32 cur32 = new OutputPointer.Int32();
+    final OutputPointer.Int32 high32 = new OutputPointer.Int32();
+    final sqlite3 db = createNewDb();
+    execSql(db, "create table t(a); insert into t values(1),(2),(3)");
+
+    int rc = sqlite3_status(SQLITE_STATUS_MEMORY_USED, cur32, high32, false);
+    affirm( 0 == rc );
+    affirm( cur32.value > 0 );
+    affirm( high32.value >= cur32.value );
+
+    rc = sqlite3_status64(SQLITE_STATUS_MEMORY_USED, cur64, high64, false);
+    affirm( 0 == rc );
+    affirm( cur64.value > 0 );
+    affirm( high64.value >= cur64.value );
+
+    cur32.value = 0;
+    high32.value = 1;
+    rc = sqlite3_db_status(db, SQLITE_DBSTATUS_SCHEMA_USED, cur32, high32, false);
+    affirm( 0 == rc );
+    affirm( cur32.value > 0 );
+    affirm( high32.value == 0 /* always 0 for SCHEMA_USED */ );
+
+    sqlite3_close_v2(db);
+  }
+
+  private void testUdf1(){
+    final sqlite3 db = createNewDb();
+    // These ValueHolders are just to confirm that the func did what we want...
+    final ValueHolder<Boolean> xDestroyCalled = new ValueHolder<>(false);
+    final ValueHolder<Integer> xFuncAccum = new ValueHolder<>(0);
+    final ValueHolder<sqlite3_value[]> neverEverDoThisInClientCode = new ValueHolder<>(null);
+    final ValueHolder<sqlite3_context> neverEverDoThisInClientCode2 = new ValueHolder<>(null);
+
+    // Create an SQLFunction instance using one of its 3 subclasses:
+    // Scalar, Aggregate, or Window:
+    SQLFunction func =
+      // Each of the 3 subclasses requires a different set of
+      // functions, all of which must be implemented.  Anonymous
+      // classes are a convenient way to implement these.
+      new ScalarFunction(){
+        public void xFunc(sqlite3_context cx, sqlite3_value[] args){
+          affirm(db == sqlite3_context_db_handle(cx));
+          if( null==neverEverDoThisInClientCode.value ){
+            /* !!!NEVER!!! hold a reference to an sqlite3_value or
+               sqlite3_context object like this in client code! They
+               are ONLY legal for the duration of their single
+               call. We do it here ONLY to test that the defenses
+               against clients doing this are working. */
+            neverEverDoThisInClientCode2.value = cx;
+            neverEverDoThisInClientCode.value = args;
+          }
+          int result = 0;
+          for( sqlite3_value v : args ) result += sqlite3_value_int(v);
+          xFuncAccum.value += result;// just for post-run testing
+          sqlite3_result_int(cx, result);
+        }
+        /* OPTIONALLY override xDestroy... */
+        public void xDestroy(){
+          xDestroyCalled.value = true;
+        }
+      };
+
+    // Register and use the function...
+    int rc = sqlite3_create_function(db, "myfunc", -1, SQLITE_UTF8, func);
+    affirm(0 == rc);
+    affirm(0 == xFuncAccum.value);
+    final sqlite3_stmt stmt = prepare(db, "SELECT myfunc(1,2,3)");
+    int n = 0;
+    while( SQLITE_ROW == sqlite3_step(stmt) ){
+      affirm( 6 == sqlite3_column_int(stmt, 0) );
+      ++n;
+    }
+    sqlite3_finalize(stmt);
+    affirm(1 == n);
+    affirm(6 == xFuncAccum.value);
+    affirm( !xDestroyCalled.value );
+    affirm( null!=neverEverDoThisInClientCode.value );
+    affirm( null!=neverEverDoThisInClientCode2.value );
+    affirm( 0<neverEverDoThisInClientCode.value.length );
+    affirm( 0==neverEverDoThisInClientCode2.value.getNativePointer() );
+    for( sqlite3_value sv : neverEverDoThisInClientCode.value ){
+      affirm( 0==sv.getNativePointer() );
+    }
+    sqlite3_close_v2(db);
+    affirm( xDestroyCalled.value );
+  }
+
+  private void testUdfThrows(){
+    final sqlite3 db = createNewDb();
+    final ValueHolder<Integer> xFuncAccum = new ValueHolder<>(0);
+
+    SQLFunction funcAgg = new AggregateFunction<Integer>(){
+        @Override public void xStep(sqlite3_context cx, sqlite3_value[] args){
+          /** Throwing from here should emit loud noise on stdout or stderr
+              but the exception is supressed because we have no way to inform
+              sqlite about it from these callbacks. */
+          //throw new RuntimeException("Throwing from an xStep");
+        }
+        @Override public void xFinal(sqlite3_context cx){
+          throw new RuntimeException("Throwing from an xFinal");
+        }
+      };
+    int rc = sqlite3_create_function(db, "myagg", 1, SQLITE_UTF8, funcAgg);
+    affirm(0 == rc);
+    affirm(0 == xFuncAccum.value);
+    sqlite3_stmt stmt = prepare(db, "SELECT myagg(1)");
+    rc = sqlite3_step(stmt);
+    sqlite3_finalize(stmt);
+    affirm( 0 != rc );
+    affirm( sqlite3_errmsg(db).indexOf("an xFinal") > 0 );
+
+    SQLFunction funcSc = new ScalarFunction(){
+        @Override public void xFunc(sqlite3_context cx, sqlite3_value[] args){
+          throw new RuntimeException("Throwing from an xFunc");
+        }
+      };
+    rc = sqlite3_create_function(db, "mysca", 0, SQLITE_UTF8, funcSc);
+    affirm(0 == rc);
+    affirm(0 == xFuncAccum.value);
+    stmt = prepare(db, "SELECT mysca()");
+    rc = sqlite3_step(stmt);
+    sqlite3_finalize(stmt);
+    affirm( 0 != rc );
+    affirm( sqlite3_errmsg(db).indexOf("an xFunc") > 0 );
+    rc = sqlite3_create_function(db, "mysca", 1, -1, funcSc);
+    affirm( SQLITE_FORMAT==rc, "invalid encoding value." );
+    sqlite3_close_v2(db);
+  }
+
+  @SingleThreadOnly
+  private void testUdfJavaObject(){
+    affirm( !mtMode );
+    final sqlite3 db = createNewDb();
+    final ValueHolder<sqlite3> testResult = new ValueHolder<>(db);
+    final ValueHolder<Integer> boundObj = new ValueHolder<>(42);
+    final SQLFunction func = new ScalarFunction(){
+        public void xFunc(sqlite3_context cx, sqlite3_value args[]){
+          sqlite3_result_java_object(cx, testResult.value);
+          affirm( sqlite3_value_java_object(args[0]) == boundObj );
+        }
+      };
+    int rc = sqlite3_create_function(db, "myfunc", -1, SQLITE_UTF8, func);
+    affirm(0 == rc);
+    sqlite3_stmt stmt = prepare(db, "select myfunc(?)");
+    affirm( 0 != stmt.getNativePointer() );
+    affirm( testResult.value == db );
+    rc = sqlite3_bind_java_object(stmt, 1, boundObj);
+    affirm( 0==rc );
+    int n = 0;
+    if( SQLITE_ROW == sqlite3_step(stmt) ){
+      affirm( testResult.value == sqlite3_column_java_object(stmt, 0) );
+      affirm( testResult.value == sqlite3_column_java_object(stmt, 0, sqlite3.class) );
+      affirm( null == sqlite3_column_java_object(stmt, 0, sqlite3_stmt.class) );
+      affirm( null == sqlite3_column_java_object(stmt,1) );
+      final sqlite3_value v = sqlite3_column_value(stmt, 0);
+      affirm( testResult.value == sqlite3_value_java_object(v) );
+      affirm( testResult.value == sqlite3_value_java_object(v, sqlite3.class) );
+      affirm( testResult.value ==
+              sqlite3_value_java_object(v, testResult.value.getClass()) );
+      affirm( testResult.value == sqlite3_value_java_object(v, Object.class) );
+      affirm( null == sqlite3_value_java_object(v, String.class) );
+      ++n;
+    }
+    sqlite3_finalize(stmt);
+    affirm( 1 == n );
+    affirm( 0==sqlite3_db_release_memory(db) );
+    sqlite3_close_v2(db);
+  }
+
+  private void testUdfAggregate(){
+    final sqlite3 db = createNewDb();
+    final ValueHolder<Boolean> xFinalNull =
+      // To confirm that xFinal() is called with no aggregate state
+      // when the corresponding result set is empty.
+      new ValueHolder<>(false);
+    final ValueHolder<sqlite3_value[]> neverEverDoThisInClientCode = new ValueHolder<>(null);
+    final ValueHolder<sqlite3_context> neverEverDoThisInClientCode2 = new ValueHolder<>(null);
+    SQLFunction func = new AggregateFunction<Integer>(){
+        @Override
+        public void xStep(sqlite3_context cx, sqlite3_value[] args){
+          if( null==neverEverDoThisInClientCode.value ){
+            /* !!!NEVER!!! hold a reference to an sqlite3_value or
+               sqlite3_context object like this in client code! They
+               are ONLY legal for the duration of their single
+               call. We do it here ONLY to test that the defenses
+               against clients doing this are working. */
+            neverEverDoThisInClientCode.value = args;
+          }
+          final ValueHolder<Integer> agg = this.getAggregateState(cx, 0);
+          agg.value += sqlite3_value_int(args[0]);
+          affirm( agg == this.getAggregateState(cx, 0) );
+        }
+        @Override
+        public void xFinal(sqlite3_context cx){
+          if( null==neverEverDoThisInClientCode2.value ){
+            neverEverDoThisInClientCode2.value = cx;
+          }
+          final Integer v = this.takeAggregateState(cx);
+          if(null == v){
+            xFinalNull.value = true;
+            sqlite3_result_null(cx);
+          }else{
+            sqlite3_result_int(cx, v);
+          }
+        }
+      };
+    execSql(db, "CREATE TABLE t(a); INSERT INTO t(a) VALUES(1),(2),(3)");
+    int rc = sqlite3_create_function(db, "myfunc", 1, SQLITE_UTF8, func);
+    affirm(0 == rc);
+    sqlite3_stmt stmt = prepare(db, "select myfunc(a), myfunc(a+10) from t");
+    affirm( 0==sqlite3_stmt_status(stmt, SQLITE_STMTSTATUS_RUN, false) );
+    int n = 0;
+    if( SQLITE_ROW == sqlite3_step(stmt) ){
+      int v = sqlite3_column_int(stmt, 0);
+      affirm( 6 == v );
+      int v2 = sqlite3_column_int(stmt, 1);
+      affirm( 30+v == v2 );
+      ++n;
+    }
+    affirm( 1==n );
+    affirm(!xFinalNull.value);
+    affirm( null!=neverEverDoThisInClientCode.value );
+    affirm( null!=neverEverDoThisInClientCode2.value );
+    affirm( 0<neverEverDoThisInClientCode.value.length );
+    affirm( 0==neverEverDoThisInClientCode2.value.getNativePointer() );
+    sqlite3_reset(stmt);
+    affirm( 1==sqlite3_stmt_status(stmt, SQLITE_STMTSTATUS_RUN, false) );
+    // Ensure that the accumulator is reset on subsequent calls...
+    n = 0;
+    if( SQLITE_ROW == sqlite3_step(stmt) ){
+      final int v = sqlite3_column_int(stmt, 0);
+      affirm( 6 == v );
+      ++n;
+    }
+    sqlite3_finalize(stmt);
+    affirm( 1==n );
+
+    stmt = prepare(db, "select myfunc(a), myfunc(a+a) from t order by a");
+    n = 0;
+    while( SQLITE_ROW == sqlite3_step(stmt) ){
+      final int c0 = sqlite3_column_int(stmt, 0);
+      final int c1 = sqlite3_column_int(stmt, 1);
+      ++n;
+      affirm( 6 == c0 );
+      affirm( 12 == c1 );
+    }
+    sqlite3_finalize(stmt);
+    affirm( 1 == n );
+    affirm(!xFinalNull.value);
+
+    execSql(db, "SELECT myfunc(1) WHERE 0");
+    affirm(xFinalNull.value);
+    sqlite3_close_v2(db);
+  }
+
+  private void testUdfWindow(){
+    final sqlite3 db = createNewDb();
+    /* Example window function, table, and results taken from:
+       https://sqlite.org/windowfunctions.html#udfwinfunc */
+    final SQLFunction func = new WindowFunction<Integer>(){
+
+        private void xStepInverse(sqlite3_context cx, int v){
+          this.getAggregateState(cx,0).value += v;
+        }
+        @Override public void xStep(sqlite3_context cx, sqlite3_value[] args){
+          this.xStepInverse(cx, sqlite3_value_int(args[0]));
+        }
+        @Override public void xInverse(sqlite3_context cx, sqlite3_value[] args){
+          this.xStepInverse(cx, -sqlite3_value_int(args[0]));
+        }
+
+        private void xFinalValue(sqlite3_context cx, Integer v){
+          if(null == v) sqlite3_result_null(cx);
+          else sqlite3_result_int(cx, v);
+        }
+        @Override public void xFinal(sqlite3_context cx){
+          xFinalValue(cx, this.takeAggregateState(cx));
+        }
+        @Override public void xValue(sqlite3_context cx){
+          xFinalValue(cx, this.getAggregateState(cx,null).value);
+        }
+      };
+    int rc = sqlite3_create_function(db, "winsumint", 1, SQLITE_UTF8, func);
+    affirm( 0 == rc );
+    execSql(db, new String[] {
+        "CREATE TEMP TABLE twin(x, y); INSERT INTO twin VALUES",
+        "('a', 4),('b', 5),('c', 3),('d', 8),('e', 1)"
+      });
+    final sqlite3_stmt stmt = prepare(db,
+                         "SELECT x, winsumint(y) OVER ("+
+                         "ORDER BY x ROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING"+
+                         ") AS sum_y "+
+                         "FROM twin ORDER BY x;");
+    int n = 0;
+    while( SQLITE_ROW == sqlite3_step(stmt) ){
+      final String s = sqlite3_column_text16(stmt, 0);
+      final int i = sqlite3_column_int(stmt, 1);
+      switch(++n){
+        case 1: affirm( "a".equals(s) && 9==i ); break;
+        case 2: affirm( "b".equals(s) && 12==i ); break;
+        case 3: affirm( "c".equals(s) && 16==i ); break;
+        case 4: affirm( "d".equals(s) && 12==i ); break;
+        case 5: affirm( "e".equals(s) && 9==i ); break;
+        default: affirm( false /* cannot happen */ );
+      }
+    }
+    sqlite3_finalize(stmt);
+    affirm( 5 == n );
+    sqlite3_close_v2(db);
+  }
+
+  private void listBoundMethods(){
+    if(false){
+      final java.lang.reflect.Field[] declaredFields =
+        CApi.class.getDeclaredFields();
+      outln("Bound constants:\n");
+      for(java.lang.reflect.Field field : declaredFields) {
+        if(java.lang.reflect.Modifier.isStatic(field.getModifiers())) {
+          outln("\t",field.getName());
+        }
+      }
+    }
+    final java.lang.reflect.Method[] declaredMethods =
+      CApi.class.getDeclaredMethods();
+    final java.util.List<String> funcList = new java.util.ArrayList<>();
+    for(java.lang.reflect.Method m : declaredMethods){
+      if((m.getModifiers() & java.lang.reflect.Modifier.STATIC) != 0){
+        final String name = m.getName();
+        if(name.startsWith("sqlite3_")){
+          funcList.add(name);
+        }
+      }
+    }
+    int count = 0;
+    java.util.Collections.sort(funcList);
+    for(String n : funcList){
+      ++count;
+      outln("\t",n,"()");
+    }
+    outln(count," functions named sqlite3_*.");
+  }
+
+  private void testTrace(){
+    final sqlite3 db = createNewDb();
+    final ValueHolder<Integer> counter = new ValueHolder<>(0);
+    /* Ensure that characters outside of the UTF BMP survive the trip
+       from Java to sqlite3 and back to Java. (At no small efficiency
+       penalty.) */
+    final String nonBmpChar = "😃";
+    int rc = sqlite3_trace_v2(
+      db, SQLITE_TRACE_STMT | SQLITE_TRACE_PROFILE
+          | SQLITE_TRACE_ROW | SQLITE_TRACE_CLOSE,
+      new TraceV2Callback(){
+        @Override public int call(int traceFlag, Object pNative, Object x){
+          ++counter.value;
+          //outln("TRACE "+traceFlag+" pNative = "+pNative.getClass().getName());
+          switch(traceFlag){
+            case SQLITE_TRACE_STMT:
+              affirm(pNative instanceof sqlite3_stmt);
+              //outln("TRACE_STMT sql = "+x);
+              affirm(x instanceof String);
+              affirm( ((String)x).indexOf(nonBmpChar) > 0 );
+              break;
+            case SQLITE_TRACE_PROFILE:
+              affirm(pNative instanceof sqlite3_stmt);
+              affirm(x instanceof Long);
+              //outln("TRACE_PROFILE time = "+x);
+              break;
+            case SQLITE_TRACE_ROW:
+              affirm(pNative instanceof sqlite3_stmt);
+              affirm(null == x);
+              //outln("TRACE_ROW = "+sqlite3_column_text16((sqlite3_stmt)pNative, 0));
+              break;
+            case SQLITE_TRACE_CLOSE:
+              affirm(pNative instanceof sqlite3);
+              affirm(null == x);
+              break;
+            default:
+              affirm(false /*cannot happen*/);
+              break;
+          }
+          return 0;
+        }
+      });
+    affirm( 0==rc );
+    execSql(db, "SELECT coalesce(null,null,'"+nonBmpChar+"'); "+
+            "SELECT 'w"+nonBmpChar+"orld'");
+    affirm( 6 == counter.value );
+    sqlite3_close_v2(db);
+    affirm( 7 == counter.value );
+  }
+
+  @SingleThreadOnly /* because threads inherently break this test */
+  private static void testBusy(){
+    final String dbName = "_busy-handler.db";
+    try{
+      final OutputPointer.sqlite3 outDb = new OutputPointer.sqlite3();
+      final OutputPointer.sqlite3_stmt outStmt = new OutputPointer.sqlite3_stmt();
+
+      int rc = sqlite3_open(dbName, outDb);
+      ++metrics.dbOpen;
+      affirm( 0 == rc );
+      final sqlite3 db1 = outDb.get();
+      execSql(db1, "CREATE TABLE IF NOT EXISTS t(a)");
+      rc = sqlite3_open(dbName, outDb);
+      ++metrics.dbOpen;
+      affirm( 0 == rc );
+      affirm( outDb.get() != db1 );
+      final sqlite3 db2 = outDb.get();
+
+      affirm( "main".equals( sqlite3_db_name(db1, 0) ) );
+      rc = sqlite3_db_config(db1, SQLITE_DBCONFIG_MAINDBNAME, "foo");
+      affirm( sqlite3_db_filename(db1, "foo").endsWith(dbName) );
+      affirm( "foo".equals( sqlite3_db_name(db1, 0) ) );
+      affirm( SQLITE_MISUSE == sqlite3_db_config(db1, 0, 0, null) );
+
+      final ValueHolder<Integer> xBusyCalled = new ValueHolder<>(0);
+      BusyHandlerCallback handler = new BusyHandlerCallback(){
+          @Override public int call(int n){
+            //outln("busy handler #"+n);
+            return n > 2 ? 0 : ++xBusyCalled.value;
+          }
+        };
+      rc = sqlite3_busy_handler(db2, handler);
+      affirm(0 == rc);
+
+      // Force a locked condition...
+      execSql(db1, "BEGIN EXCLUSIVE");
+      rc = sqlite3_prepare_v2(db2, "SELECT * from t", outStmt);
+      affirm( SQLITE_BUSY == rc);
+      affirm( null == outStmt.get() );
+      affirm( 3 == xBusyCalled.value );
+      sqlite3_close_v2(db1);
+      sqlite3_close_v2(db2);
+    }finally{
+      try{(new java.io.File(dbName)).delete();}
+      catch(Exception e){/* ignore */}
+    }
+  }
+
+  private void testProgress(){
+    final sqlite3 db = createNewDb();
+    final ValueHolder<Integer> counter = new ValueHolder<>(0);
+    sqlite3_progress_handler(db, 1, new ProgressHandlerCallback(){
+        @Override public int call(){
+          ++counter.value;
+          return 0;
+        }
+      });
+    execSql(db, "SELECT 1; SELECT 2;");
+    affirm( counter.value > 0 );
+    int nOld = counter.value;
+    sqlite3_progress_handler(db, 0, null);
+    execSql(db, "SELECT 1; SELECT 2;");
+    affirm( nOld == counter.value );
+    sqlite3_close_v2(db);
+  }
+
+  private void testCommitHook(){
+    final sqlite3 db = createNewDb();
+    sqlite3_extended_result_codes(db, true);
+    final ValueHolder<Integer> counter = new ValueHolder<>(0);
+    final ValueHolder<Integer> hookResult = new ValueHolder<>(0);
+    final CommitHookCallback theHook = new CommitHookCallback(){
+        @Override public int call(){
+          ++counter.value;
+          return hookResult.value;
+        }
+      };
+    CommitHookCallback oldHook = sqlite3_commit_hook(db, theHook);
+    affirm( null == oldHook );
+    execSql(db, "CREATE TABLE t(a); INSERT INTO t(a) VALUES('a'),('b'),('c')");
+    affirm( 2 == counter.value );
+    execSql(db, "BEGIN; SELECT 1; SELECT 2; COMMIT;");
+    affirm( 2 == counter.value /* NOT invoked if no changes are made */ );
+    execSql(db, "BEGIN; update t set a='d' where a='c'; COMMIT;");
+    affirm( 3 == counter.value );
+    oldHook = sqlite3_commit_hook(db, theHook);
+    affirm( theHook == oldHook );
+    execSql(db, "BEGIN; update t set a='e' where a='d'; COMMIT;");
+    affirm( 4 == counter.value );
+    oldHook = sqlite3_commit_hook(db, null);
+    affirm( theHook == oldHook );
+    execSql(db, "BEGIN; update t set a='f' where a='e'; COMMIT;");
+    affirm( 4 == counter.value );
+    oldHook = sqlite3_commit_hook(db, null);
+    affirm( null == oldHook );
+    execSql(db, "BEGIN; update t set a='g' where a='f'; COMMIT;");
+    affirm( 4 == counter.value );
+
+    final CommitHookCallback newHook = new CommitHookCallback(){
+        @Override public int call(){return 0;}
+      };
+    oldHook = sqlite3_commit_hook(db, newHook);
+    affirm( null == oldHook );
+    execSql(db, "BEGIN; update t set a='h' where a='g'; COMMIT;");
+    affirm( 4 == counter.value );
+    oldHook = sqlite3_commit_hook(db, theHook);
+    affirm( newHook == oldHook );
+    execSql(db, "BEGIN; update t set a='i' where a='h'; COMMIT;");
+    affirm( 5 == counter.value );
+    hookResult.value = SQLITE_ERROR;
+    int rc = execSql(db, false, "BEGIN; update t set a='j' where a='i'; COMMIT;");
+    affirm( SQLITE_CONSTRAINT_COMMITHOOK == rc );
+    affirm( 6 == counter.value );
+    sqlite3_close_v2(db);
+  }
+
+  private void testUpdateHook(){
+    final sqlite3 db = createNewDb();
+    final ValueHolder<Integer> counter = new ValueHolder<>(0);
+    final ValueHolder<Integer> expectedOp = new ValueHolder<>(0);
+    final UpdateHookCallback theHook = new UpdateHookCallback(){
+        @Override
+        public void call(int opId, String dbName, String tableName, long rowId){
+          ++counter.value;
+          if( 0!=expectedOp.value ){
+            affirm( expectedOp.value == opId );
+          }
+        }
+      };
+    UpdateHookCallback oldHook = sqlite3_update_hook(db, theHook);
+    affirm( null == oldHook );
+    expectedOp.value = SQLITE_INSERT;
+    execSql(db, "CREATE TABLE t(a); INSERT INTO t(a) VALUES('a'),('b'),('c')");
+    affirm( 3 == counter.value );
+    expectedOp.value = SQLITE_UPDATE;
+    execSql(db, "update t set a='d' where a='c';");
+    affirm( 4 == counter.value );
+    oldHook = sqlite3_update_hook(db, theHook);
+    affirm( theHook == oldHook );
+    expectedOp.value = SQLITE_DELETE;
+    execSql(db, "DELETE FROM t where a='d'");
+    affirm( 5 == counter.value );
+    oldHook = sqlite3_update_hook(db, null);
+    affirm( theHook == oldHook );
+    execSql(db, "update t set a='e' where a='b';");
+    affirm( 5 == counter.value );
+    oldHook = sqlite3_update_hook(db, null);
+    affirm( null == oldHook );
+
+    final UpdateHookCallback newHook = new UpdateHookCallback(){
+        @Override public void call(int opId, String dbName, String tableName, long rowId){
+        }
+      };
+    oldHook = sqlite3_update_hook(db, newHook);
+    affirm( null == oldHook );
+    execSql(db, "update t set a='h' where a='a'");
+    affirm( 5 == counter.value );
+    oldHook = sqlite3_update_hook(db, theHook);
+    affirm( newHook == oldHook );
+    expectedOp.value = SQLITE_UPDATE;
+    execSql(db, "update t set a='i' where a='h'");
+    affirm( 6 == counter.value );
+    sqlite3_close_v2(db);
+  }
+
+  /**
+     This test is functionally identical to testUpdateHook(), only with a
+     different callback type.
+  */
+  private void testPreUpdateHook(){
+    if( !sqlite3_compileoption_used("ENABLE_PREUPDATE_HOOK") ){
+      //outln("Skipping testPreUpdateHook(): no pre-update hook support.");
+      return;
+    }
+    final sqlite3 db = createNewDb();
+    final ValueHolder<Integer> counter = new ValueHolder<>(0);
+    final ValueHolder<Integer> expectedOp = new ValueHolder<>(0);
+    final PreupdateHookCallback theHook = new PreupdateHookCallback(){
+        @Override
+        public void call(sqlite3 db, int opId, String dbName, String dbTable,
+                         long iKey1, long iKey2 ){
+          ++counter.value;
+          switch( opId ){
+            case SQLITE_UPDATE:
+              affirm( 0 < sqlite3_preupdate_count(db) );
+              affirm( null != sqlite3_preupdate_new(db, 0) );
+              affirm( null != sqlite3_preupdate_old(db, 0) );
+              break;
+            case SQLITE_INSERT:
+              affirm( null != sqlite3_preupdate_new(db, 0) );
+              break;
+            case SQLITE_DELETE:
+              affirm( null != sqlite3_preupdate_old(db, 0) );
+              break;
+            default:
+              break;
+          }
+          if( 0!=expectedOp.value ){
+            affirm( expectedOp.value == opId );
+          }
+        }
+      };
+    PreupdateHookCallback oldHook = sqlite3_preupdate_hook(db, theHook);
+    affirm( null == oldHook );
+    expectedOp.value = SQLITE_INSERT;
+    execSql(db, "CREATE TABLE t(a); INSERT INTO t(a) VALUES('a'),('b'),('c')");
+    affirm( 3 == counter.value );
+    expectedOp.value = SQLITE_UPDATE;
+    execSql(db, "update t set a='d' where a='c';");
+    affirm( 4 == counter.value );
+    oldHook = sqlite3_preupdate_hook(db, theHook);
+    affirm( theHook == oldHook );
+    expectedOp.value = SQLITE_DELETE;
+    execSql(db, "DELETE FROM t where a='d'");
+    affirm( 5 == counter.value );
+    oldHook = sqlite3_preupdate_hook(db, null);
+    affirm( theHook == oldHook );
+    execSql(db, "update t set a='e' where a='b';");
+    affirm( 5 == counter.value );
+    oldHook = sqlite3_preupdate_hook(db, null);
+    affirm( null == oldHook );
+
+    final PreupdateHookCallback newHook = new PreupdateHookCallback(){
+        @Override
+        public void call(sqlite3 db, int opId, String dbName,
+                         String tableName, long iKey1, long iKey2){
+        }
+      };
+    oldHook = sqlite3_preupdate_hook(db, newHook);
+    affirm( null == oldHook );
+    execSql(db, "update t set a='h' where a='a'");
+    affirm( 5 == counter.value );
+    oldHook = sqlite3_preupdate_hook(db, theHook);
+    affirm( newHook == oldHook );
+    expectedOp.value = SQLITE_UPDATE;
+    execSql(db, "update t set a='i' where a='h'");
+    affirm( 6 == counter.value );
+
+    sqlite3_close_v2(db);
+  }
+
+  private void testRollbackHook(){
+    final sqlite3 db = createNewDb();
+    final ValueHolder<Integer> counter = new ValueHolder<>(0);
+    final RollbackHookCallback theHook = new RollbackHookCallback(){
+        @Override public void call(){
+          ++counter.value;
+        }
+      };
+    RollbackHookCallback oldHook = sqlite3_rollback_hook(db, theHook);
+    affirm( null == oldHook );
+    execSql(db, "CREATE TABLE t(a); INSERT INTO t(a) VALUES('a'),('b'),('c')");
+    affirm( 0 == counter.value );
+    execSql(db, false, "BEGIN; SELECT 1; SELECT 2; ROLLBACK;");
+    affirm( 1 == counter.value /* contra to commit hook, is invoked if no changes are made */ );
+
+    final RollbackHookCallback newHook = new RollbackHookCallback(){
+        @Override public void call(){return;}
+      };
+    oldHook = sqlite3_rollback_hook(db, newHook);
+    affirm( theHook == oldHook );
+    execSql(db, false, "BEGIN; SELECT 1; ROLLBACK;");
+    affirm( 1 == counter.value );
+    oldHook = sqlite3_rollback_hook(db, theHook);
+    affirm( newHook == oldHook );
+    execSql(db, false, "BEGIN; SELECT 1; ROLLBACK;");
+    affirm( 2 == counter.value );
+    int rc = execSql(db, false, "BEGIN; SELECT 1; ROLLBACK;");
+    affirm( 0 == rc );
+    affirm( 3 == counter.value );
+    sqlite3_close_v2(db);
+  }
+
+  /**
+     If FTS5 is available, runs FTS5 tests, else returns with no side
+     effects. If it is available but loading of the FTS5 bits fails,
+     it throws.
+  */
+  @SuppressWarnings("unchecked")
+  @SingleThreadOnly /* because the Fts5 parts are not yet known to be
+                       thread-safe */
+  private void testFts5() throws Exception {
+    if( !sqlite3_compileoption_used("ENABLE_FTS5") ){
+      //outln("SQLITE_ENABLE_FTS5 is not set. Skipping FTS5 tests.");
+      return;
+    }
+    Exception err = null;
+    try {
+      Class t = Class.forName("org.sqlite.jni.fts5.TesterFts5");
+      java.lang.reflect.Constructor ctor = t.getConstructor();
+      ctor.setAccessible(true);
+      final long timeStart = System.currentTimeMillis();
+      ctor.newInstance() /* will run all tests */;
+      final long timeEnd = System.currentTimeMillis();
+      outln("FTS5 Tests done in ",(timeEnd - timeStart),"ms");
+    }catch(ClassNotFoundException e){
+      outln("FTS5 classes not loaded.");
+      err = e;
+    }catch(NoSuchMethodException e){
+      outln("FTS5 tester ctor not found.");
+      err = e;
+    }catch(Exception e){
+      outln("Instantiation of FTS5 tester threw.");
+      err = e;
+    }
+    if( null != err ){
+      outln("Exception: "+err);
+      err.printStackTrace();
+      throw err;
+    }
+  }
+
+  private void testAuthorizer(){
+    final sqlite3 db = createNewDb();
+    final ValueHolder<Integer> counter = new ValueHolder<>(0);
+    final ValueHolder<Integer> authRc = new ValueHolder<>(0);
+    final AuthorizerCallback auth = new AuthorizerCallback(){
+        public int call(int op, String s0, String s1, String s2, String s3){
+          ++counter.value;
+          //outln("xAuth(): "+s0+" "+s1+" "+s2+" "+s3);
+          return authRc.value;
+        }
+      };
+    execSql(db, "CREATE TABLE t(a); INSERT INTO t(a) VALUES('a'),('b'),('c')");
+    sqlite3_set_authorizer(db, auth);
+    execSql(db, "UPDATE t SET a=1");
+    affirm( 1 == counter.value );
+    authRc.value = SQLITE_DENY;
+    int rc = execSql(db, false, "UPDATE t SET a=2");
+    affirm( SQLITE_AUTH==rc );
+    sqlite3_set_authorizer(db, null);
+    rc = execSql(db, false, "UPDATE t SET a=2");
+    affirm( 0==rc );
+    // TODO: expand these tests considerably
+    sqlite3_close(db);
+  }
+
+  @SingleThreadOnly /* because multiple threads legitimately make these
+                       results unpredictable */
+  private synchronized void testAutoExtension(){
+    final ValueHolder<Integer> val = new ValueHolder<>(0);
+    final ValueHolder<String> toss = new ValueHolder<>(null);
+    final AutoExtensionCallback ax = new AutoExtensionCallback(){
+        @Override public int call(sqlite3 db){
+          ++val.value;
+          if( null!=toss.value ){
+            throw new RuntimeException(toss.value);
+          }
+          return 0;
+        }
+      };
+    int rc = sqlite3_auto_extension( ax );
+    affirm( 0==rc );
+    sqlite3_close(createNewDb());
+    affirm( 1==val.value );
+    sqlite3_close(createNewDb());
+    affirm( 2==val.value );
+    sqlite3_reset_auto_extension();
+    sqlite3_close(createNewDb());
+    affirm( 2==val.value );
+    rc = sqlite3_auto_extension( ax );
+    affirm( 0==rc );
+    // Must not add a new entry
+    rc = sqlite3_auto_extension( ax );
+    affirm( 0==rc );
+    sqlite3_close( createNewDb() );
+    affirm( 3==val.value );
+
+    sqlite3 db = createNewDb();
+    affirm( 4==val.value );
+    execSql(db, "ATTACH ':memory:' as foo");
+    affirm( 4==val.value, "ATTACH uses the same connection, not sub-connections." );
+    sqlite3_close(db);
+    db = null;
+
+    affirm( sqlite3_cancel_auto_extension(ax) );
+    affirm( !sqlite3_cancel_auto_extension(ax) );
+    sqlite3_close(createNewDb());
+    affirm( 4==val.value );
+    rc = sqlite3_auto_extension( ax );
+    affirm( 0==rc );
+    Exception err = null;
+    toss.value = "Throwing from auto_extension.";
+    try{
+      sqlite3_close(createNewDb());
+    }catch(Exception e){
+      err = e;
+    }
+    affirm( err!=null );
+    affirm( err.getMessage().indexOf(toss.value)>0 );
+    toss.value = null;
+
+    val.value = 0;
+    final AutoExtensionCallback ax2 = new AutoExtensionCallback(){
+        @Override public int call(sqlite3 db){
+          ++val.value;
+          return 0;
+        }
+      };
+    rc = sqlite3_auto_extension( ax2 );
+    affirm( 0 == rc );
+    sqlite3_close(createNewDb());
+    affirm( 2 == val.value );
+    affirm( sqlite3_cancel_auto_extension(ax) );
+    affirm( !sqlite3_cancel_auto_extension(ax) );
+    sqlite3_close(createNewDb());
+    affirm( 3 == val.value );
+    rc = sqlite3_auto_extension( ax );
+    affirm( 0 == rc );
+    sqlite3_close(createNewDb());
+    affirm( 5 == val.value );
+    affirm( sqlite3_cancel_auto_extension(ax2) );
+    affirm( !sqlite3_cancel_auto_extension(ax2) );
+    sqlite3_close(createNewDb());
+    affirm( 6 == val.value );
+    rc = sqlite3_auto_extension( ax2 );
+    affirm( 0 == rc );
+    sqlite3_close(createNewDb());
+    affirm( 8 == val.value );
+
+    sqlite3_reset_auto_extension();
+    sqlite3_close(createNewDb());
+    affirm( 8 == val.value );
+    affirm( !sqlite3_cancel_auto_extension(ax) );
+    affirm( !sqlite3_cancel_auto_extension(ax2) );
+    sqlite3_close(createNewDb());
+    affirm( 8 == val.value );
+  }
+
+
+  private void testColumnMetadata(){
+    final sqlite3 db = createNewDb();
+    execSql(db, new String[] {
+        "CREATE TABLE t(a duck primary key not null collate noCase); ",
+        "INSERT INTO t(a) VALUES(1),(2),(3);"
+      });
+    OutputPointer.Bool bNotNull = new OutputPointer.Bool();
+    OutputPointer.Bool bPrimaryKey = new OutputPointer.Bool();
+    OutputPointer.Bool bAutoinc = new OutputPointer.Bool();
+    OutputPointer.String zCollSeq = new OutputPointer.String();
+    OutputPointer.String zDataType = new OutputPointer.String();
+    int rc = sqlite3_table_column_metadata(
+      db, "main", "t", "a", zDataType, zCollSeq,
+      bNotNull, bPrimaryKey, bAutoinc);
+    affirm( 0==rc );
+    affirm( bPrimaryKey.value );
+    affirm( !bAutoinc.value );
+    affirm( bNotNull.value );
+    affirm( "noCase".equals(zCollSeq.value) );
+    affirm( "duck".equals(zDataType.value) );
+
+    TableColumnMetadata m =
+      sqlite3_table_column_metadata(db, "main", "t", "a");
+    affirm( null != m );
+    affirm( bPrimaryKey.value == m.isPrimaryKey() );
+    affirm( bAutoinc.value == m.isAutoincrement() );
+    affirm( bNotNull.value == m.isNotNull() );
+    affirm( zCollSeq.value.equals(m.getCollation()) );
+    affirm( zDataType.value.equals(m.getDataType()) );
+
+    affirm( null == sqlite3_table_column_metadata(db, "nope", "t", "a") );
+    affirm( null == sqlite3_table_column_metadata(db, "main", "nope", "a") );
+
+    m = sqlite3_table_column_metadata(db, "main", "t", null)
+      /* Check only for existence of table */;
+    affirm( null != m );
+    affirm( m.isPrimaryKey() );
+    affirm( !m.isAutoincrement() );
+    affirm( !m.isNotNull() );
+    affirm( "BINARY".equalsIgnoreCase(m.getCollation()) );
+    affirm( "INTEGER".equalsIgnoreCase(m.getDataType()) );
+
+    sqlite3_close_v2(db);
+  }
+
+  private void testTxnState(){
+    final sqlite3 db = createNewDb();
+    affirm( SQLITE_TXN_NONE == sqlite3_txn_state(db, null) );
+    affirm( sqlite3_get_autocommit(db) );
+    execSql(db, "BEGIN;");
+    affirm( !sqlite3_get_autocommit(db) );
+    affirm( SQLITE_TXN_NONE == sqlite3_txn_state(db, null) );
+    execSql(db, "SELECT * FROM sqlite_schema;");
+    affirm( SQLITE_TXN_READ == sqlite3_txn_state(db, "main") );
+    execSql(db, "CREATE TABLE t(a);");
+    affirm( SQLITE_TXN_WRITE ==  sqlite3_txn_state(db, null) );
+    execSql(db, "ROLLBACK;");
+    affirm( SQLITE_TXN_NONE == sqlite3_txn_state(db, null) );
+    sqlite3_close_v2(db);
+  }
+
+
+  private void testExplain(){
+    final sqlite3 db = createNewDb();
+    sqlite3_stmt stmt = prepare(db,"SELECT 1");
+
+    affirm( 0 == sqlite3_stmt_isexplain(stmt) );
+    int rc = sqlite3_stmt_explain(stmt, 1);
+    affirm( 1 == sqlite3_stmt_isexplain(stmt) );
+    rc = sqlite3_stmt_explain(stmt, 2);
+    affirm( 2 == sqlite3_stmt_isexplain(stmt) );
+    sqlite3_finalize(stmt);
+    sqlite3_close_v2(db);
+  }
+
+  private void testLimit(){
+    final sqlite3 db = createNewDb();
+    int v;
+
+    v = sqlite3_limit(db, SQLITE_LIMIT_LENGTH, -1);
+    affirm( v > 0 );
+    affirm( v == sqlite3_limit(db, SQLITE_LIMIT_LENGTH, v-1) );
+    affirm( v-1 == sqlite3_limit(db, SQLITE_LIMIT_LENGTH, -1) );
+    sqlite3_close_v2(db);
+  }
+
+  private void testComplete(){
+    affirm( 0==sqlite3_complete("select 1") );
+    affirm( 0!=sqlite3_complete("select 1;") );
+    affirm( 0!=sqlite3_complete("nope 'nope' 'nope' 1;"), "Yup" );
+  }
+
+  private void testKeyword(){
+    final int n = sqlite3_keyword_count();
+    affirm( n>0 );
+    affirm( !sqlite3_keyword_check("_nope_") );
+    affirm( sqlite3_keyword_check("seLect") );
+    affirm( null!=sqlite3_keyword_name(0) );
+    affirm( null!=sqlite3_keyword_name(n-1) );
+    affirm( null==sqlite3_keyword_name(n) );
+  }
+
+  private void testBackup(){
+    final sqlite3 dbDest = createNewDb();
+
+    try (sqlite3 dbSrc = createNewDb()) {
+      execSql(dbSrc, new String[]{
+          "pragma page_size=512; VACUUM;",
+          "create table t(a);",
+          "insert into t(a) values(1),(2),(3);"
+        });
+      affirm( null==sqlite3_backup_init(dbSrc,"main",dbSrc,"main") );
+      try (sqlite3_backup b = sqlite3_backup_init(dbDest,"main",dbSrc,"main")) {
+        affirm( null!=b );
+        affirm( b.getNativePointer()!=0 );
+        int rc;
+        while( SQLITE_DONE!=(rc = sqlite3_backup_step(b, 1)) ){
+          affirm( 0==rc );
+        }
+        affirm( sqlite3_backup_pagecount(b) > 0 );
+        rc = sqlite3_backup_finish(b);
+        affirm( 0==rc );
+        affirm( b.getNativePointer()==0 );
+      }
+    }
+
+    try (sqlite3_stmt stmt = prepare(dbDest,"SELECT sum(a) from t")) {
+      sqlite3_step(stmt);
+      affirm( sqlite3_column_int(stmt,0) == 6 );
+    }
+    sqlite3_close_v2(dbDest);
+  }
+
+  private void testRandomness(){
+    byte[] foo = new byte[20];
+    int i = 0;
+    for( byte b : foo ){
+      i += b;
+    }
+    affirm( i==0 );
+    sqlite3_randomness(foo);
+    for( byte b : foo ){
+      if(b!=0) ++i;
+    }
+    affirm( i!=0, "There's a very slight chance that 0 is actually correct." );
+  }
+
+  private void testBlobOpen(){
+    final sqlite3 db = createNewDb();
+
+    execSql(db, "CREATE TABLE T(a BLOB);"
+            +"INSERT INTO t(rowid,a) VALUES(1, 'def'),(2, 'XYZ');"
+    );
+    final OutputPointer.sqlite3_blob pOut = new OutputPointer.sqlite3_blob();
+    int rc = sqlite3_blob_open(db, "main", "t", "a",
+                               sqlite3_last_insert_rowid(db), 1, pOut);
+    affirm( 0==rc );
+    sqlite3_blob b = pOut.take();
+    affirm( null!=b );
+    affirm( 0!=b.getNativePointer() );
+    affirm( 3==sqlite3_blob_bytes(b) );
+    rc = sqlite3_blob_write( b, new byte[] {100, 101, 102 /*"DEF"*/}, 0);
+    affirm( 0==rc );
+    rc = sqlite3_blob_close(b);
+    affirm( 0==rc );
+    rc = sqlite3_blob_close(b);
+    affirm( 0!=rc );
+    affirm( 0==b.getNativePointer() );
+    sqlite3_stmt stmt = prepare(db,"SELECT length(a), a FROM t ORDER BY a");
+    affirm( SQLITE_ROW == sqlite3_step(stmt) );
+    affirm( 3 == sqlite3_column_int(stmt,0) );
+    affirm( "def".equals(sqlite3_column_text16(stmt,1)) );
+    sqlite3_finalize(stmt);
+
+    b = sqlite3_blob_open(db, "main", "t", "a",
+                          sqlite3_last_insert_rowid(db), 0);
+    affirm( null!=b );
+    rc = sqlite3_blob_reopen(b, 2);
+    affirm( 0==rc );
+    final byte[] tgt = new byte[3];
+    rc = sqlite3_blob_read(b, tgt, 0);
+    affirm( 0==rc );
+    affirm( 100==tgt[0] && 101==tgt[1] && 102==tgt[2], "DEF" );
+    rc = sqlite3_blob_close(b);
+    affirm( 0==rc );
+
+    if( !sqlite3_jni_supports_nio() ){
+      outln("WARNING: skipping tests for ByteBuffer-using sqlite3_blob APIs ",
+            "because this platform lacks that support.");
+      sqlite3_close_v2(db);
+      return;
+    }
+    /* Sanity checks for the java.nio.ByteBuffer-taking overloads of
+       sqlite3_blob_read/write(). */
+    execSql(db, "UPDATE t SET a=zeroblob(10)");
+    b = sqlite3_blob_open(db, "main", "t", "a", 1, 1);
+    affirm( null!=b );
+    java.nio.ByteBuffer bb = java.nio.ByteBuffer.allocateDirect(10);
+    for( byte i = 0; i < 10; ++i ){
+      bb.put((int)i, (byte)(48+i & 0xff));
+    }
+    rc = sqlite3_blob_write(b, 1, bb, 1, 10);
+    affirm( rc==SQLITE_ERROR, "b length < (srcOffset + bb length)" );
+    rc = sqlite3_blob_write(b, -1, bb);
+    affirm( rc==SQLITE_ERROR, "Target offset may not be negative" );
+    rc = sqlite3_blob_write(b, 0, bb, -1, -1);
+    affirm( rc==SQLITE_ERROR, "Source offset may not be negative" );
+    rc = sqlite3_blob_write(b, 1, bb, 1, 8);
+    affirm( rc==0 );
+    // b's contents: 0 49  50  51  52  53  54  55  56  0
+    //        ascii: 0 '1' '2' '3' '4' '5' '6' '7' '8' 0
+    byte br[] = new byte[10];
+    java.nio.ByteBuffer bbr =
+      java.nio.ByteBuffer.allocateDirect(bb.limit());
+    rc = sqlite3_blob_read( b, br, 0 );
+    affirm( rc==0 );
+    rc = sqlite3_blob_read( b, bbr );
+    affirm( rc==0 );
+    java.nio.ByteBuffer bbr2 = sqlite3_blob_read_nio_buffer(b, 0, 12);
+    affirm( null==bbr2, "Read size is too big");
+    bbr2 = sqlite3_blob_read_nio_buffer(b, -1, 3);
+    affirm( null==bbr2, "Source offset is negative");
+    bbr2 = sqlite3_blob_read_nio_buffer(b, 5, 6);
+    affirm( null==bbr2, "Read pos+size is too big");
+    bbr2 = sqlite3_blob_read_nio_buffer(b, 4, 7);
+    affirm( null==bbr2, "Read pos+size is too big");
+    bbr2 = sqlite3_blob_read_nio_buffer(b, 4, 6);
+    affirm( null!=bbr2 );
+    java.nio.ByteBuffer bbr3 =
+      java.nio.ByteBuffer.allocateDirect(2 * bb.limit());
+    java.nio.ByteBuffer bbr4 =
+      java.nio.ByteBuffer.allocateDirect(5);
+    rc = sqlite3_blob_read( b, bbr3 );
+    affirm( rc==0 );
+    rc = sqlite3_blob_read( b, bbr4 );
+    affirm( rc==0 );
+    affirm( sqlite3_blob_bytes(b)==bbr3.limit() );
+    affirm( 5==bbr4.limit() );
+    sqlite3_blob_close(b);
+    affirm( 0==br[0] );
+    affirm( 0==br[9] );
+    affirm( 0==bbr.get(0) );
+    affirm( 0==bbr.get(9) );
+    affirm( bbr2.limit() == 6 );
+    affirm( 0==bbr3.get(0) );
+    {
+      Exception ex = null;
+      try{ bbr3.get(11); }
+      catch(Exception e){ex = e;}
+      affirm( ex instanceof IndexOutOfBoundsException,
+              "bbr3.limit() was reset by read()" );
+      ex = null;
+    }
+    affirm( 0==bbr4.get(0) );
+    for( int i = 1; i < 9; ++i ){
+      affirm( br[i] == 48 + i );
+      affirm( br[i] == bbr.get(i) );
+      affirm( br[i] == bbr3.get(i) );
+      if( i>3 ){
+        affirm( br[i] == bbr2.get(i-4) );
+      }
+      if( i < bbr4.limit() ){
+        affirm( br[i] == bbr4.get(i) );
+      }
+    }
+    sqlite3_close_v2(db);
+  }
+
+  private void testPrepareMulti(){
+    final sqlite3 db = createNewDb();
+    final String[] sql = {
+      "create table t(","a)",
+      "; insert into t(a) values(1),(2),(3);",
+      "select a from t;"
+    };
+    final List<sqlite3_stmt> liStmt = new ArrayList<sqlite3_stmt>();
+    final PrepareMultiCallback proxy = new PrepareMultiCallback.StepAll();
+    final ValueHolder<String> toss = new ValueHolder<>(null);
+    PrepareMultiCallback m = new PrepareMultiCallback() {
+        @Override public int call(sqlite3_stmt st){
+          liStmt.add(st);
+          if( null!=toss.value ){
+            throw new RuntimeException(toss.value);
+          }
+          return proxy.call(st);
+        }
+      };
+    int rc = sqlite3_prepare_multi(db, sql, m);
+    affirm( 0==rc );
+    affirm( liStmt.size() == 3 );
+    for( sqlite3_stmt st : liStmt ){
+      sqlite3_finalize(st);
+    }
+    toss.value = "This is an exception.";
+    rc = sqlite3_prepare_multi(db, "SELECT 1", m);
+    affirm( SQLITE_ERROR==rc );
+    affirm( sqlite3_errmsg(db).indexOf(toss.value)>0 );
+    sqlite3_close_v2(db);
+  }
+
+  /* Copy/paste/rename this to add new tests. */
+  private void _testTemplate(){
+    final sqlite3 db = createNewDb();
+    sqlite3_stmt stmt = prepare(db,"SELECT 1");
+    sqlite3_finalize(stmt);
+    sqlite3_close_v2(db);
+  }
+
+
+  @ManualTest /* we really only want to run this test manually */
+  private void testSleep(){
+    out("Sleeping briefly... ");
+    sqlite3_sleep(600);
+    outln("Woke up.");
+  }
+
+  private void nap() throws InterruptedException {
+    if( takeNaps ){
+      Thread.sleep(java.util.concurrent.ThreadLocalRandom.current().nextInt(3, 17), 0);
+    }
+  }
+
+  @ManualTest /* because we only want to run this test on demand */
+  private void testFail(){
+    affirm( false, "Intentional failure." );
+  }
+
+  private void runTests(boolean fromThread) throws Exception {
+    if(false) showCompileOption();
+    List<java.lang.reflect.Method> mlist = testMethods;
+    affirm( null!=mlist );
+    if( shuffle ){
+      mlist = new ArrayList<>( testMethods.subList(0, testMethods.size()) );
+      java.util.Collections.shuffle(mlist);
+    }
+    if( (!fromThread && listRunTests>0) || listRunTests>1 ){
+      synchronized(this.getClass()){
+        if( !fromThread ){
+          out("Initial test"," list: ");
+          for(java.lang.reflect.Method m : testMethods){
+            out(m.getName()+" ");
+          }
+          outln();
+          outln("(That list excludes some which are hard-coded to run.)");
+        }
+        out("Running"," tests: ");
+        for(java.lang.reflect.Method m : mlist){
+          out(m.getName()+" ");
+        }
+        outln();
+      }
+    }
+    for(java.lang.reflect.Method m : mlist){
+      nap();
+      try{
+        m.invoke(this);
+      }catch(java.lang.reflect.InvocationTargetException e){
+        outln("FAILURE: ",m.getName(),"(): ", e.getCause());
+        throw e;
+      }
+    }
+    synchronized( this.getClass() ){
+      ++nTestRuns;
+    }
+  }
+
+  public void run() {
+    try {
+      runTests(0!=this.tId);
+    }catch(Exception e){
+      synchronized( listErrors ){
+        listErrors.add(e);
+      }
+    }finally{
+      affirm( sqlite3_java_uncache_thread() );
+      affirm( !sqlite3_java_uncache_thread() );
+    }
+  }
+
+  /**
+     Runs the basic sqlite3 JNI binding sanity-check suite.
+
+     CLI flags:
+
+     -q|-quiet: disables most test output.
+
+     -t|-thread N: runs the tests in N threads
+      concurrently. Default=1.
+
+     -r|-repeat N: repeats the tests in a loop N times, each one
+      consisting of the -thread value's threads.
+
+     -shuffle: randomizes the order of most of the test functions.
+
+     -naps: sleep small random intervals between tests in order to add
+     some chaos for cross-thread contention.
+
+
+     -list-tests: outputs the list of tests being run, minus some
+      which are hard-coded. In multi-threaded mode, use this twice to
+      to emit the list run by each thread (which may differ from the initial
+      list, in particular if -shuffle is used).
+
+     -fail: forces an exception to be thrown during the test run.  Use
+     with -shuffle to make its appearance unpredictable.
+
+     -v: emit some developer-mode info at the end.
+  */
+  public static void main(String[] args) throws Exception {
+    Integer nThread = 1;
+    boolean doSomethingForDev = false;
+    Integer nRepeat = 1;
+    boolean forceFail = false;
+    boolean sqlLog = false;
+    boolean configLog = false;
+    boolean squelchTestOutput = false;
+    for( int i = 0; i < args.length; ){
+      String arg = args[i++];
+      if(arg.startsWith("-")){
+        arg = arg.replaceFirst("-+","");
+        if(arg.equals("v")){
+          doSomethingForDev = true;
+          //listBoundMethods();
+        }else if(arg.equals("t") || arg.equals("thread")){
+          nThread = Integer.parseInt(args[i++]);
+        }else if(arg.equals("r") || arg.equals("repeat")){
+          nRepeat = Integer.parseInt(args[i++]);
+        }else if(arg.equals("shuffle")){
+          shuffle = true;
+        }else if(arg.equals("list-tests")){
+          ++listRunTests;
+        }else if(arg.equals("fail")){
+          forceFail = true;
+        }else if(arg.equals("sqllog")){
+          sqlLog = true;
+        }else if(arg.equals("configlog")){
+          configLog = true;
+        }else if(arg.equals("naps")){
+          takeNaps = true;
+        }else if(arg.equals("q") || arg.equals("quiet")){
+          squelchTestOutput = true;
+        }else{
+          throw new IllegalArgumentException("Unhandled flag:"+arg);
+        }
+      }
+    }
+
+    if( sqlLog ){
+      if( sqlite3_compileoption_used("ENABLE_SQLLOG") ){
+        final ConfigSqlLogCallback log = new ConfigSqlLogCallback() {
+            @Override public void call(sqlite3 db, String msg, int op){
+              switch(op){
+                case 0: outln("Opening db: ",db); break;
+                case 1: outln("SQL ",db,": ",msg); break;
+                case 2: outln("Closing db: ",db); break;
+              }
+            }
+          };
+        int rc = sqlite3_config( log );
+        affirm( 0==rc );
+        rc = sqlite3_config( (ConfigSqlLogCallback)null );
+        affirm( 0==rc );
+        rc = sqlite3_config( log );
+        affirm( 0==rc );
+      }else{
+        outln("WARNING: -sqllog is not active because library was built ",
+              "without SQLITE_ENABLE_SQLLOG.");
+      }
+    }
+    if( configLog ){
+      final ConfigLogCallback log = new ConfigLogCallback() {
+          @Override public void call(int code, String msg){
+            outln("ConfigLogCallback: ",ResultCode.getEntryForInt(code),": ", msg);
+          };
+        };
+      int rc = sqlite3_config( log );
+      affirm( 0==rc );
+      rc = sqlite3_config( (ConfigLogCallback)null );
+      affirm( 0==rc );
+      rc = sqlite3_config( log );
+      affirm( 0==rc );
+    }
+
+    quietMode = squelchTestOutput;
+    outln("If you just saw warning messages regarding CallStaticObjectMethod, ",
+          "you are very likely seeing the side effects of a known openjdk8 ",
+          "bug. It is unsightly but does not affect the library.");
+
+    {
+      // Build list of tests to run from the methods named test*().
+      testMethods = new ArrayList<>();
+      int nSkipped = 0;
+      for(final java.lang.reflect.Method m : Tester1.class.getDeclaredMethods()){
+        final String name = m.getName();
+        if( name.equals("testFail") ){
+          if( forceFail ){
+            testMethods.add(m);
+          }
+        }else if( m.isAnnotationPresent( RequiresJniNio.class )
+                  && !sqlite3_jni_supports_nio() ){
+          outln("Skipping test for lack of JNI java.nio.ByteBuffer support: ",
+                name,"()\n");
+          ++nSkipped;
+        }else if( !m.isAnnotationPresent( ManualTest.class ) ){
+          if( nThread>1 && m.isAnnotationPresent( SingleThreadOnly.class ) ){
+            out("Skipping test in multi-thread mode: ",name,"()\n");
+            ++nSkipped;
+          }else if( name.startsWith("test") ){
+            testMethods.add(m);
+          }
+        }
+      }
+    }
+
+    final long timeStart = System.currentTimeMillis();
+    int nLoop = 0;
+    switch( sqlite3_threadsafe() ){ /* Sanity checking */
+      case 0:
+        affirm( SQLITE_ERROR==sqlite3_config( SQLITE_CONFIG_SINGLETHREAD ),
+                "Could not switch to single-thread mode." );
+        affirm( SQLITE_ERROR==sqlite3_config( SQLITE_CONFIG_MULTITHREAD ),
+                "Could switch to multithread mode."  );
+        affirm( SQLITE_ERROR==sqlite3_config( SQLITE_CONFIG_SERIALIZED ),
+                "Could not switch to serialized threading mode."  );
+        outln("This is a single-threaded build. Not using threads.");
+        nThread = 1;
+        break;
+      case 1:
+      case 2:
+        affirm( 0==sqlite3_config( SQLITE_CONFIG_SINGLETHREAD ),
+                "Could not switch to single-thread mode." );
+        affirm( 0==sqlite3_config( SQLITE_CONFIG_MULTITHREAD ),
+                "Could not switch to multithread mode."  );
+        affirm( 0==sqlite3_config( SQLITE_CONFIG_SERIALIZED ),
+                "Could not switch to serialized threading mode."  );
+        break;
+      default:
+        affirm( false, "Unhandled SQLITE_THREADSAFE value." );
+    }
+    outln("libversion_number: ",
+          sqlite3_libversion_number(),"\n",
+          sqlite3_libversion(),"\n",SQLITE_SOURCE_ID,"\n",
+          "SQLITE_THREADSAFE=",sqlite3_threadsafe());
+    outln("JVM NIO support? ",sqlite3_jni_supports_nio() ? "YES" : "NO");
+    final boolean showLoopCount = (nRepeat>1 && nThread>1);
+    if( showLoopCount ){
+      outln("Running ",nRepeat," loop(s) with ",nThread," thread(s) each.");
+    }
+    if( takeNaps ) outln("Napping between tests is enabled.");
+    for( int n = 0; n < nRepeat; ++n ){
+      ++nLoop;
+      if( showLoopCount ) out((1==nLoop ? "" : " ")+nLoop);
+      if( nThread<=1 ){
+        new Tester1(0).runTests(false);
+        continue;
+      }
+      Tester1.mtMode = true;
+      final ExecutorService ex = Executors.newFixedThreadPool( nThread );
+      for( int i = 0; i < nThread; ++i ){
+        ex.submit( new Tester1(i), i );
+      }
+      ex.shutdown();
+      try{
+        ex.awaitTermination(nThread*200, java.util.concurrent.TimeUnit.MILLISECONDS);
+        ex.shutdownNow();
+      }catch (InterruptedException ie){
+        ex.shutdownNow();
+        Thread.currentThread().interrupt();
+      }
+      if( !listErrors.isEmpty() ){
+        quietMode = false;
+        outln("TEST ERRORS:");
+        Exception err = null;
+        for( Exception e : listErrors ){
+          e.printStackTrace();
+          if( null==err ) err = e;
+        }
+        if( null!=err ) throw err;
+      }
+    }
+    if( showLoopCount ) outln();
+    quietMode = false;
+
+    final long timeEnd = System.currentTimeMillis();
+    outln("Tests done. Metrics across ",nTestRuns," total iteration(s):");
+    outln("\tAssertions checked: ",affirmCount);
+    outln("\tDatabases opened: ",metrics.dbOpen);
+    if( doSomethingForDev ){
+      sqlite3_jni_internal_details();
+    }
+    affirm( 0==sqlite3_release_memory(1) );
+    sqlite3_shutdown();
+    int nMethods = 0;
+    int nNatives = 0;
+    final java.lang.reflect.Method[] declaredMethods =
+      CApi.class.getDeclaredMethods();
+    for(java.lang.reflect.Method m : declaredMethods){
+      final int mod = m.getModifiers();
+      if( 0!=(mod & java.lang.reflect.Modifier.STATIC) ){
+        final String name = m.getName();
+        if(name.startsWith("sqlite3_")){
+          ++nMethods;
+          if( 0!=(mod & java.lang.reflect.Modifier.NATIVE) ){
+            ++nNatives;
+          }
+        }
+      }
+    }
+    outln("\tCApi.sqlite3_*() methods: "+
+          nMethods+" total, with "+
+          nNatives+" native, "+
+          (nMethods - nNatives)+" Java"
+    );
+    outln("\tTotal test time = "
+          +(timeEnd - timeStart)+"ms");
+  }
+}
diff --git a/ext/jni/src/org/sqlite/jni/capi/TraceV2Callback.java b/ext/jni/src/org/sqlite/jni/capi/TraceV2Callback.java
new file mode 100644
index 0000000000000000000000000000000000000000..56465a2c0a6713888dca42be773e7d40d0de9046
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/capi/TraceV2Callback.java
@@ -0,0 +1,50 @@
+/*
+** 2023-08-25
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the JNI bindings for the sqlite3 C API.
+*/
+package org.sqlite.jni.capi;
+import org.sqlite.jni.annotation.Nullable;
+
+/**
+   Callback for use with {@link CApi#sqlite3_trace_v2}.
+*/
+public interface TraceV2Callback extends CallbackProxy {
+  /**
+     Called by sqlite3 for various tracing operations, as per
+     sqlite3_trace_v2(). Note that this interface elides the 2nd
+     argument to the native trace callback, as that role is better
+     filled by instance-local state.
+
+     <p>These callbacks may throw, in which case their exceptions are
+     converted to C-level error information.
+
+     <p>The 2nd argument to this function, if non-null, will be a an
+     sqlite3 or sqlite3_stmt object, depending on the first argument
+     (see below).
+
+     <p>The final argument to this function is the "X" argument
+     documented for sqlite3_trace() and sqlite3_trace_v2(). Its type
+     depends on value of the first argument:
+
+     <p>- SQLITE_TRACE_STMT: pNative is a sqlite3_stmt. pX is a String
+     containing the prepared SQL.
+
+     <p>- SQLITE_TRACE_PROFILE: pNative is a sqlite3_stmt. pX is a Long
+     holding an approximate number of nanoseconds the statement took
+     to run.
+
+     <p>- SQLITE_TRACE_ROW: pNative is a sqlite3_stmt. pX is null.
+
+     <p>- SQLITE_TRACE_CLOSE: pNative is a sqlite3. pX is null.
+  */
+  int call(int traceFlag, Object pNative, @Nullable Object pX);
+}
diff --git a/ext/jni/src/org/sqlite/jni/capi/UpdateHookCallback.java b/ext/jni/src/org/sqlite/jni/capi/UpdateHookCallback.java
new file mode 100644
index 0000000000000000000000000000000000000000..e3d491f67e673a66053c554ecb1e7ef425004451
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/capi/UpdateHookCallback.java
@@ -0,0 +1,26 @@
+/*
+** 2023-08-25
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the JNI bindings for the sqlite3 C API.
+*/
+package org.sqlite.jni.capi;
+
+/**
+   Callback for use with {@link CApi#sqlite3_update_hook}.
+*/
+public interface UpdateHookCallback extends CallbackProxy {
+  /**
+     Must function as described for the C-level sqlite3_update_hook()
+     callback. If it throws, the exception is translated into
+     a db-level error.
+  */
+  void call(int opId, String dbName, String tableName, long rowId);
+}
diff --git a/ext/jni/src/org/sqlite/jni/capi/ValueHolder.java b/ext/jni/src/org/sqlite/jni/capi/ValueHolder.java
new file mode 100644
index 0000000000000000000000000000000000000000..0a469fea9a1d025b67425a57d051ce2a60852089
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/capi/ValueHolder.java
@@ -0,0 +1,27 @@
+/*
+** 2023-10-16
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file contains the ValueHolder utility class for the sqlite3
+** JNI bindings.
+*/
+package org.sqlite.jni.capi;
+
+/**
+   A helper class which simply holds a single value. Its primary use
+   is for communicating values out of anonymous classes, as doing so
+   requires a "final" reference, as well as communicating aggregate
+   SQL function state across calls to such functions.
+*/
+public class ValueHolder<T> {
+  public T value;
+  public ValueHolder(){}
+  public ValueHolder(T v){value = v;}
+}
diff --git a/ext/jni/src/org/sqlite/jni/capi/WindowFunction.java b/ext/jni/src/org/sqlite/jni/capi/WindowFunction.java
new file mode 100644
index 0000000000000000000000000000000000000000..eaf1bb9a35132b4b9e011437e01c8f2d149abfb3
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/capi/WindowFunction.java
@@ -0,0 +1,39 @@
+/*
+** 2023-08-25
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the JNI bindings for the sqlite3 C API.
+*/
+package org.sqlite.jni.capi;
+
+
+/**
+   A SQLFunction implementation for window functions.  Note that
+   WindowFunction inherits from {@link AggregateFunction} and each
+   instance is required to implement the inherited abstract methods
+   from that class. See {@link AggregateFunction} for information on
+   managing the UDF's invocation-specific state.
+*/
+public abstract class WindowFunction<T> extends AggregateFunction<T> {
+
+  /**
+     As for the xInverse() argument of the C API's
+     sqlite3_create_window_function(). If this function throws, the
+     exception is not propagated and a warning might be emitted
+     to a debugging channel.
+  */
+  public abstract void xInverse(sqlite3_context cx, sqlite3_value[] args);
+
+  /**
+     As for the xValue() argument of the C API's sqlite3_create_window_function().
+     See xInverse() for the fate of any exceptions this throws.
+  */
+  public abstract void xValue(sqlite3_context cx);
+}
diff --git a/ext/jni/src/org/sqlite/jni/capi/XDestroyCallback.java b/ext/jni/src/org/sqlite/jni/capi/XDestroyCallback.java
new file mode 100644
index 0000000000000000000000000000000000000000..372e4ec8d0ddda320cebfad8f3d49efac31f08ce
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/capi/XDestroyCallback.java
@@ -0,0 +1,37 @@
+/*
+** 2023-07-21
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file declares JNI bindings for the sqlite3 C API.
+*/
+package org.sqlite.jni.capi;
+
+/**
+   Callback for a hook called by SQLite when certain client-provided
+   state are destroyed. It gets its name from the pervasive use of
+   the symbol name xDestroy() for this purpose in the C API
+   documentation.
+*/
+public interface XDestroyCallback {
+  /**
+     Must perform any cleanup required by this object. Must not
+     throw. Must not call back into the sqlite3 API, else it might
+     invoke a deadlock.
+
+     WARNING: as a rule, it is never safe to register individual
+     instances with this interface multiple times in the
+     library. e.g., do not register the same CollationCallback with
+     multiple arities or names using sqlite3_create_collation().  If
+     this rule is violated, the library will eventually try to free
+     each individual reference, leading to memory corruption or a
+     crash via duplicate free().
+  */
+  public void xDestroy();
+}
diff --git a/ext/jni/src/org/sqlite/jni/capi/package-info.java b/ext/jni/src/org/sqlite/jni/capi/package-info.java
new file mode 100644
index 0000000000000000000000000000000000000000..127f38067522d8aff63e267193bc1198a3e66df4
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/capi/package-info.java
@@ -0,0 +1,89 @@
+/**
+   This package houses a JNI binding to the SQLite3 C API.
+
+   <p>The primary interfaces are in {@link
+   org.sqlite.jni.capi.CApi}.</p>
+
+   <h1>API Goals and Requirements</h1>
+
+   <ul>
+
+     <li>A 1-to-1(-ish) mapping of the C API to Java via JNI, insofar
+     as cross-language semantics allow for. A closely-related goal is
+     that <a href='https://sqlite.org/c3ref/intro.html'>the C
+     documentation</a> should be usable as-is, insofar as possible,
+     for most of the JNI binding. As a rule, undocumented symbols in
+     the Java interface behave as documented for their C API
+     counterpart. Only semantic differences and Java-specific features
+     are documented here.</li>
+
+     <li>Support Java as far back as version 8 (2014).</li>
+
+     <li>Environment-independent. Should work everywhere both Java and
+     SQLite3 do.</li>
+
+     <li>No 3rd-party dependencies beyond the JDK. That includes no
+     build-level dependencies for specific IDEs and toolchains.  We
+     welcome the addition of build files for arbitrary environments
+     insofar as they neither interfere with each other nor become a
+     maintenance burden for the sqlite developers.</li>
+
+  </ul>
+
+  <h2>Non-Goals</h2>
+
+  <ul>
+
+    <li>Creation of high-level OO wrapper APIs. Clients are free to
+    create them off of the C-style API.</li>
+
+    <li>Support for mixed-mode operation, where client code accesses
+    SQLite both via the Java-side API and the C API via their own
+    native code. In such cases, proxy functionalities (primarily
+    callback handler wrappers of all sorts) may fail because the
+    C-side use of the SQLite APIs will bypass those proxies.</li>
+
+  </ul>
+
+   <h1>State of this API</h1>
+
+   <p>As of version 3.43, this software is in "tech preview" form. We
+   tentatively plan to stamp it as stable with the 3.44 release.</p>
+
+   <h1>Threading Considerations</h1>
+
+   <p>This API is, if built with SQLITE_THREADSAFE set to 1 or 2,
+   thread-safe, insofar as the C API guarantees, with some addenda:</p>
+
+   <ul>
+
+     <li>It is not legal to use Java-facing SQLite3 resource handles
+     (sqlite3, sqlite3_stmt, etc) from multiple threads concurrently,
+     nor to use any database-specific resources concurrently in a
+     thread separate from the one the database is currently in use
+     in. i.e. do not use a sqlite3_stmt in thread #2 when thread #1 is
+     using the database which prepared that handle.
+
+     <br>Violating this will eventually corrupt the JNI-level bindings
+     between Java's and C's view of the database. This is a limitation
+     of the JNI bindings, not the lower-level library.
+     </li>
+
+     <li>It is legal to use a given handle, and database-specific
+     resources, across threads, so long as no two threads pass
+     resources owned by the same database into the library
+     concurrently.
+     </li>
+
+   </ul>
+
+   <p>Any number of threads may, of course, create and use any number
+   of database handles they wish. Care only needs to be taken when
+   those handles or their associated resources cross threads, or...</p>
+
+   <p>When built with SQLITE_THREADSAFE=0 then no threading guarantees
+   are provided and multi-threaded use of the library will provoke
+   undefined behavior.</p>
+
+*/
+package org.sqlite.jni.capi;
diff --git a/ext/jni/src/org/sqlite/jni/capi/sqlite3.java b/ext/jni/src/org/sqlite/jni/capi/sqlite3.java
new file mode 100644
index 0000000000000000000000000000000000000000..cc6f2e6e8d88c8278cef2699041e906e37eb3ce9
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/capi/sqlite3.java
@@ -0,0 +1,43 @@
+/*
+** 2023-07-21
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the JNI bindings for the sqlite3 C API.
+*/
+package org.sqlite.jni.capi;
+
+/**
+   A wrapper for communicating C-level (sqlite3*) instances with
+   Java. These wrappers do not own their associated pointer, they
+   simply provide a type-safe way to communicate it between Java
+   and C via JNI.
+*/
+public final class sqlite3 extends NativePointerHolder<sqlite3>
+ implements AutoCloseable {
+
+  // Only invoked from JNI
+  private sqlite3(){}
+
+  public String toString(){
+    final long ptr = getNativePointer();
+    if( 0==ptr ){
+      return sqlite3.class.getSimpleName()+"@null";
+    }
+    final String fn = CApi.sqlite3_db_filename(this, "main");
+    return sqlite3.class.getSimpleName()
+      +"@"+String.format("0x%08x",ptr)
+      +"["+((null == fn) ? "<unnamed>" : fn)+"]"
+      ;
+  }
+
+  @Override public void close(){
+    CApi.sqlite3_close_v2(this);
+  }
+}
diff --git a/ext/jni/src/org/sqlite/jni/capi/sqlite3_backup.java b/ext/jni/src/org/sqlite/jni/capi/sqlite3_backup.java
new file mode 100644
index 0000000000000000000000000000000000000000..0ef75c17eb744515cae53b9a13e0f3fa69d1593c
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/capi/sqlite3_backup.java
@@ -0,0 +1,31 @@
+/*
+** 2023-09-03
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the JNI bindings for the sqlite3 C API.
+*/
+package org.sqlite.jni.capi;
+
+/**
+   A wrapper for passing C-level (sqlite3_backup*) instances around in
+   Java. These wrappers do not own their associated pointer, they
+   simply provide a type-safe way to communicate it between Java and C
+   via JNI.
+*/
+public final class sqlite3_backup extends NativePointerHolder<sqlite3_backup>
+  implements AutoCloseable {
+  // Only invoked from JNI.
+  private sqlite3_backup(){}
+
+  @Override public void close(){
+    CApi.sqlite3_backup_finish(this);
+  }
+
+}
diff --git a/ext/jni/src/org/sqlite/jni/capi/sqlite3_blob.java b/ext/jni/src/org/sqlite/jni/capi/sqlite3_blob.java
new file mode 100644
index 0000000000000000000000000000000000000000..bdc0200af49c373d1973fdaae01c851769cc1e67
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/capi/sqlite3_blob.java
@@ -0,0 +1,30 @@
+/*
+** 2023-09-03
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the JNI bindings for the sqlite3 C API.
+*/
+package org.sqlite.jni.capi;
+
+/**
+   A wrapper for passing C-level (sqlite3_blob*) instances around in
+   Java. These wrappers do not own their associated pointer, they
+   simply provide a type-safe way to communicate it between Java and C
+   via JNI.
+*/
+public final class sqlite3_blob extends NativePointerHolder<sqlite3_blob>
+  implements AutoCloseable {
+  // Only invoked from JNI.
+  private sqlite3_blob(){}
+
+  @Override public void close(){
+    CApi.sqlite3_blob_close(this);
+  }
+}
diff --git a/ext/jni/src/org/sqlite/jni/capi/sqlite3_context.java b/ext/jni/src/org/sqlite/jni/capi/sqlite3_context.java
new file mode 100644
index 0000000000000000000000000000000000000000..82ec49af16d02d5173b0d3f59f7ab8a3306ed70a
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/capi/sqlite3_context.java
@@ -0,0 +1,79 @@
+/*
+** 2023-07-21
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the JNI bindings for the sqlite3 C API.
+*/
+package org.sqlite.jni.capi;
+
+/**
+   sqlite3_context instances are used in conjunction with user-defined
+   SQL functions (a.k.a. UDFs).
+*/
+public final class sqlite3_context extends NativePointerHolder<sqlite3_context> {
+  private Long aggregateContext = null;
+
+  /**
+     getAggregateContext() corresponds to C's
+     sqlite3_aggregate_context(), with a slightly different interface
+     to account for cross-language differences. It serves the same
+     purposes in a slightly different way: it provides a key which is
+     stable across invocations of a UDF's callbacks, such that all
+     calls into those callbacks can determine which "set" of those
+     calls they belong to.
+
+     <p>Note that use of this method is not a requirement for proper use
+     of this class. sqlite3_aggregate_context() can also be used.
+
+     <p>If the argument is true and the aggregate context has not yet
+     been set up, it will be initialized and fetched on demand, else it
+     won't. The intent is that xStep(), xValue(), and xInverse()
+     methods pass true and xFinal() methods pass false.
+
+     <p>This function treats numeric 0 as null, always returning null instead
+     of 0.
+
+     <p>If this object is being used in the context of an aggregate or
+     window UDF, this function returns a non-0 value which is distinct
+     for each set of UDF callbacks from a single invocation of the
+     UDF, otherwise it returns 0. The returned value is only only
+     valid within the context of execution of a single SQL statement,
+     and must not be re-used by future invocations of the UDF in
+     different SQL statements.
+
+     <p>Consider this SQL, where MYFUNC is a user-defined aggregate function:
+
+     <pre>{@code
+     SELECT MYFUNC(A), MYFUNC(B) FROM T;
+     }</pre>
+
+     <p>The xStep() and xFinal() methods of the callback need to be able
+     to differentiate between those two invocations in order to
+     perform their work properly. The value returned by
+     getAggregateContext() will be distinct for each of those
+     invocations of MYFUNC() and is intended to be used as a lookup
+     key for mapping callback invocations to whatever client-defined
+     state is needed by the UDF.
+
+     <p>There is one case where this will return null in the context
+     of an aggregate or window function: if the result set has no
+     rows, the UDF's xFinal() will be called without any other x...()
+     members having been called. In that one case, no aggregate
+     context key will have been generated. xFinal() implementations
+     need to be prepared to accept that condition as legal.
+  */
+  public synchronized Long getAggregateContext(boolean initIfNeeded){
+      if( aggregateContext==null ){
+        aggregateContext = CApi.sqlite3_aggregate_context(this, initIfNeeded);
+        if( !initIfNeeded && null==aggregateContext ) aggregateContext = 0L;
+      }
+      return (null==aggregateContext || 0!=aggregateContext) ? aggregateContext : null;
+  }
+}
diff --git a/ext/jni/src/org/sqlite/jni/capi/sqlite3_stmt.java b/ext/jni/src/org/sqlite/jni/capi/sqlite3_stmt.java
new file mode 100644
index 0000000000000000000000000000000000000000..564891c72799f5b6cb2ae09d1169ef4dda5351bc
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/capi/sqlite3_stmt.java
@@ -0,0 +1,30 @@
+/*
+** 2023-07-21
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the JNI bindings for the sqlite3 C API.
+*/
+package org.sqlite.jni.capi;
+
+/**
+   A wrapper for communicating C-level (sqlite3_stmt*) instances with
+   Java. These wrappers do not own their associated pointer, they
+   simply provide a type-safe way to communicate it between Java and C
+   via JNI.
+*/
+public final class sqlite3_stmt extends NativePointerHolder<sqlite3_stmt>
+  implements AutoCloseable {
+  // Only invoked from JNI.
+  private sqlite3_stmt(){}
+
+  @Override public void close(){
+    CApi.sqlite3_finalize(this);
+  }
+}
diff --git a/ext/jni/src/org/sqlite/jni/capi/sqlite3_value.java b/ext/jni/src/org/sqlite/jni/capi/sqlite3_value.java
new file mode 100644
index 0000000000000000000000000000000000000000..a4772f0f639dbb7eccc46f33cf742dfb388b1bed
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/capi/sqlite3_value.java
@@ -0,0 +1,19 @@
+/*
+** 2023-07-21
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the JNI bindings for the sqlite3 C API.
+*/
+package org.sqlite.jni.capi;
+
+public final class sqlite3_value extends NativePointerHolder<sqlite3_value> {
+  //! Invoked only from JNI.
+  private sqlite3_value(){}
+}
diff --git a/ext/jni/src/org/sqlite/jni/fts5/Fts5.java b/ext/jni/src/org/sqlite/jni/fts5/Fts5.java
new file mode 100644
index 0000000000000000000000000000000000000000..0dceeafd2e6244a7b874462039e19020254c5dd1
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/fts5/Fts5.java
@@ -0,0 +1,32 @@
+/*
+** 2023-08-05
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the JNI bindings for the sqlite3 C API.
+*/
+package org.sqlite.jni.fts5;
+
+/**
+   INCOMPLETE AND COMPLETELY UNTESTED.
+
+   A utility object for holding FTS5-specific types and constants
+   which are used by multiple FTS5 classes.
+*/
+public final class Fts5 {
+  /* Not used */
+  private Fts5(){}
+
+
+  public static final int FTS5_TOKENIZE_QUERY    = 0x0001;
+  public static final int FTS5_TOKENIZE_PREFIX   = 0x0002;
+  public static final int FTS5_TOKENIZE_DOCUMENT = 0x0004;
+  public static final int FTS5_TOKENIZE_AUX      = 0x0008;
+  public static final int FTS5_TOKEN_COLOCATED   = 0x0001;
+}
diff --git a/ext/jni/src/org/sqlite/jni/fts5/Fts5Context.java b/ext/jni/src/org/sqlite/jni/fts5/Fts5Context.java
new file mode 100644
index 0000000000000000000000000000000000000000..439b477910923a99cb5109d1384d9a70a65fb911
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/fts5/Fts5Context.java
@@ -0,0 +1,24 @@
+/*
+** 2023-08-04
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the JNI bindings for the sqlite3 C API.
+*/
+package org.sqlite.jni.fts5;
+import org.sqlite.jni.capi.*;
+
+/**
+   A wrapper for communicating C-level (Fts5Context*) instances with
+   Java. These wrappers do not own their associated pointer, they
+   simply provide a type-safe way to communicate it between Java and C
+   via JNI.
+*/
+public final class Fts5Context extends NativePointerHolder<Fts5Context> {
+}
diff --git a/ext/jni/src/org/sqlite/jni/fts5/Fts5ExtensionApi.java b/ext/jni/src/org/sqlite/jni/fts5/Fts5ExtensionApi.java
new file mode 100644
index 0000000000000000000000000000000000000000..594f3eaad64b7a5d105bc71379a9df9a92ffcb09
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/fts5/Fts5ExtensionApi.java
@@ -0,0 +1,97 @@
+/*
+** 2023-08-04
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the JNI bindings for the sqlite3 C API.
+*/
+package org.sqlite.jni.fts5;
+import java.nio.charset.StandardCharsets;
+import org.sqlite.jni.capi.*;
+import org.sqlite.jni.annotation.*;
+
+/**
+*/
+public final class Fts5ExtensionApi extends NativePointerHolder<Fts5ExtensionApi> {
+  //! Only called from JNI
+  private Fts5ExtensionApi(){}
+  private final int iVersion = 2;
+
+  /* Callback type for used by xQueryPhrase(). */
+  public static interface XQueryPhraseCallback {
+    int call(Fts5ExtensionApi fapi, Fts5Context cx);
+  }
+
+  /**
+     Returns the singleton instance of this class.
+  */
+  public static native Fts5ExtensionApi getInstance();
+
+  public native int xColumnCount(@NotNull Fts5Context fcx);
+
+  public native int xColumnSize(@NotNull Fts5Context cx, int iCol,
+                                @NotNull OutputPointer.Int32 pnToken);
+
+  public native int xColumnText(@NotNull Fts5Context cx, int iCol,
+                                @NotNull OutputPointer.String txt);
+
+  public native int xColumnTotalSize(@NotNull Fts5Context fcx, int iCol,
+                                     @NotNull OutputPointer.Int64 pnToken);
+
+  public native Object xGetAuxdata(@NotNull Fts5Context cx, boolean clearIt);
+
+  public native int xInst(@NotNull Fts5Context cx, int iIdx,
+                          @NotNull OutputPointer.Int32 piPhrase,
+                          @NotNull OutputPointer.Int32 piCol,
+                          @NotNull OutputPointer.Int32 piOff);
+
+  public native int xInstCount(@NotNull Fts5Context fcx,
+                               @NotNull OutputPointer.Int32 pnInst);
+
+  public native int xPhraseCount(@NotNull Fts5Context fcx);
+
+  public native int xPhraseFirst(@NotNull Fts5Context cx, int iPhrase,
+                                 @NotNull Fts5PhraseIter iter,
+                                 @NotNull OutputPointer.Int32 iCol,
+                                 @NotNull OutputPointer.Int32 iOff);
+
+  public native int xPhraseFirstColumn(@NotNull Fts5Context cx, int iPhrase,
+                                       @NotNull Fts5PhraseIter iter,
+                                       @NotNull OutputPointer.Int32 iCol);
+  public native void xPhraseNext(@NotNull Fts5Context cx,
+                                 @NotNull Fts5PhraseIter iter,
+                                 @NotNull OutputPointer.Int32 iCol,
+                                 @NotNull OutputPointer.Int32 iOff);
+  public native void xPhraseNextColumn(@NotNull Fts5Context cx,
+                                       @NotNull Fts5PhraseIter iter,
+                                       @NotNull OutputPointer.Int32 iCol);
+  public native int xPhraseSize(@NotNull Fts5Context fcx, int iPhrase);
+
+  public native int xQueryPhrase(@NotNull Fts5Context cx, int iPhrase,
+                                 @NotNull XQueryPhraseCallback callback);
+  public native int xRowCount(@NotNull Fts5Context fcx,
+                              @NotNull OutputPointer.Int64 nRow);
+
+  public native long xRowid(@NotNull Fts5Context cx);
+  /* Note that the JNI binding lacks the C version's xDelete()
+     callback argument. Instead, if pAux has an xDestroy() method, it
+     is called if the FTS5 API finalizes the aux state (including if
+     allocation of storage for the auxdata fails). Any reference to
+     pAux held by the JNI layer will be relinquished regardless of
+     whether pAux has an xDestroy() method. */
+
+  public native int xSetAuxdata(@NotNull Fts5Context cx, @Nullable Object pAux);
+
+  public native int xTokenize(@NotNull Fts5Context cx, @NotNull byte[] pText,
+                              @NotNull XTokenizeCallback callback);
+
+  public native Object xUserData(Fts5Context cx);
+  //^^^ returns the pointer passed as the 3rd arg to the C-level
+  // fts5_api::xCreateFunction().
+}
diff --git a/ext/jni/src/org/sqlite/jni/fts5/Fts5PhraseIter.java b/ext/jni/src/org/sqlite/jni/fts5/Fts5PhraseIter.java
new file mode 100644
index 0000000000000000000000000000000000000000..5774eb593609f9fb5f77feb1458d4b270e1c71e9
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/fts5/Fts5PhraseIter.java
@@ -0,0 +1,25 @@
+/*
+** 2023-08-04
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the JNI bindings for the sqlite3 C API.
+*/
+package org.sqlite.jni.fts5;
+import org.sqlite.jni.capi.NativePointerHolder;
+
+/**
+   A wrapper for C-level Fts5PhraseIter. They are only modified and
+   inspected by native-level code.
+*/
+public final class Fts5PhraseIter extends NativePointerHolder<Fts5PhraseIter> {
+  //! Updated and used only by native code.
+  private long a;
+  private long b;
+}
diff --git a/ext/jni/src/org/sqlite/jni/fts5/Fts5Tokenizer.java b/ext/jni/src/org/sqlite/jni/fts5/Fts5Tokenizer.java
new file mode 100644
index 0000000000000000000000000000000000000000..b72e5d0fc0edf076defb95c0abdf3b834c313ed5
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/fts5/Fts5Tokenizer.java
@@ -0,0 +1,31 @@
+/*
+** 2023-08-05x
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the JNI bindings for the sqlite3 C API.
+*/
+package org.sqlite.jni.fts5;
+import org.sqlite.jni.capi.NativePointerHolder;
+
+/**
+   INCOMPLETE AND COMPLETELY UNTESTED.
+
+   A wrapper for communicating C-level (Fts5Tokenizer*) instances with
+   Java. These wrappers do not own their associated pointer, they
+   simply provide a type-safe way to communicate it between Java and C
+   via JNI.
+
+   At the C level, the Fts5Tokenizer type is essentially a void
+   pointer used specifically for tokenizers.
+*/
+public final class Fts5Tokenizer extends NativePointerHolder<Fts5Tokenizer> {
+  //! Only called from JNI.
+  private Fts5Tokenizer(){}
+}
diff --git a/ext/jni/src/org/sqlite/jni/fts5/TesterFts5.java b/ext/jni/src/org/sqlite/jni/fts5/TesterFts5.java
new file mode 100644
index 0000000000000000000000000000000000000000..095e649caffb37f6427c5492a52a308e62582ecd
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/fts5/TesterFts5.java
@@ -0,0 +1,842 @@
+/*
+** 2023-08-04
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file contains a set of tests for the sqlite3 JNI bindings.
+*/
+package org.sqlite.jni.fts5;
+import static org.sqlite.jni.capi.CApi.*;
+import static org.sqlite.jni.capi.Tester1.*;
+import org.sqlite.jni.capi.*;
+import org.sqlite.jni.fts5.*;
+
+import java.util.*;
+
+public class TesterFts5 {
+
+  private static void test1(){
+    final Fts5ExtensionApi fea = Fts5ExtensionApi.getInstance();
+    affirm( null != fea );
+    affirm( fea.getNativePointer() != 0 );
+    affirm( fea == Fts5ExtensionApi.getInstance() )/*singleton*/;
+
+    sqlite3 db = createNewDb();
+    fts5_api fApi = fts5_api.getInstanceForDb(db);
+    affirm( fApi != null );
+    affirm( fApi == fts5_api.getInstanceForDb(db) /* singleton per db */ );
+
+    execSql(db, new String[] {
+        "CREATE VIRTUAL TABLE ft USING fts5(a, b);",
+        "INSERT INTO ft(rowid, a, b) VALUES(1, 'X Y', 'Y Z');",
+        "INSERT INTO ft(rowid, a, b) VALUES(2, 'A Z', 'Y Y');"
+      });
+
+    final String pUserData = "This is pUserData";
+    final int outputs[] = {0, 0};
+    final fts5_extension_function func = new fts5_extension_function(){
+        @Override public void call(Fts5ExtensionApi ext, Fts5Context fCx,
+                                   sqlite3_context pCx, sqlite3_value argv[]){
+          final int nCols = ext.xColumnCount(fCx);
+          affirm( 2 == nCols );
+          affirm( nCols == argv.length );
+          affirm( ext.xUserData(fCx) == pUserData );
+          final OutputPointer.String op = new OutputPointer.String();
+          final OutputPointer.Int32 colsz = new OutputPointer.Int32();
+          final OutputPointer.Int64 colTotalSz = new OutputPointer.Int64();
+          for(int i = 0; i < nCols; ++i ){
+            int rc = ext.xColumnText(fCx, i, op);
+            affirm( 0 == rc );
+            final String val = op.value;
+            affirm( val.equals(sqlite3_value_text16(argv[i])) );
+            rc = ext.xColumnSize(fCx, i, colsz);
+            affirm( 0==rc );
+            affirm( 3==sqlite3_value_bytes(argv[i]) );
+            rc = ext.xColumnTotalSize(fCx, i, colTotalSz);
+            affirm( 0==rc );
+          }
+          ++outputs[0];
+        }
+        public void xDestroy(){
+          outputs[1] = 1;
+        }
+      };
+
+    int rc = fApi.xCreateFunction("myaux", pUserData, func);
+    affirm( 0==rc );
+
+    affirm( 0==outputs[0] );
+    execSql(db, "select myaux(ft,a,b) from ft;");
+    affirm( 2==outputs[0] );
+    affirm( 0==outputs[1] );
+    sqlite3_close_v2(db);
+    affirm( 1==outputs[1] );
+  }
+
+  /* 
+  ** Argument sql is a string containing one or more SQL statements
+  ** separated by ";" characters. This function executes each of these
+  ** statements against the database passed as the first argument. If
+  ** no error occurs, the results of the SQL script are returned as
+  ** an array of strings. If an error does occur, a RuntimeException is 
+  ** thrown.
+  */
+  private static String[] sqlite3_exec(sqlite3 db, String sql) {
+    List<String> aOut = new ArrayList<String>();
+
+    /* Iterate through the list of SQL statements. For each, step through
+    ** it and add any results to the aOut[] array.  */
+    int rc = sqlite3_prepare_multi(db, sql, new PrepareMultiCallback() {
+      @Override public int call(sqlite3_stmt pStmt){
+        while( SQLITE_ROW==sqlite3_step(pStmt) ){
+          int ii;
+          for(ii=0; ii<sqlite3_column_count(pStmt); ii++){
+            aOut.add( sqlite3_column_text16(pStmt, ii) );
+          }
+        }
+        return sqlite3_finalize(pStmt);
+      }
+    });
+    if( rc!=SQLITE_OK ){
+      throw new RuntimeException(sqlite3_errmsg(db));
+    }
+
+    /* Convert to array and return */
+    String[] arr = new String[aOut.size()];
+    return aOut.toArray(arr);
+  }
+
+  /*
+  ** Execute the SQL script passed as the second parameter via 
+  ** sqlite3_exec(). Then affirm() that the results, when converted to
+  ** a string, match the value of the 3rd parameter. Example:
+  **
+  **   do_execsql_test(db, "SELECT 'abc'", "[abc]");
+  **
+  */
+  private static void do_execsql_test(sqlite3 db, String sql, String expect) {
+    String res = Arrays.toString( sqlite3_exec(db, sql) );
+    affirm( res.equals(expect),
+      "got {" + res + "} expected {" + expect + "}"
+    );
+  }
+  private static void do_execsql_test(sqlite3 db, String sql){
+    do_execsql_test(db, sql, "[]");
+  }
+
+  /*
+  ** Create the following custom SQL functions:
+  **
+  **     fts5_rowid()
+  **     fts5_columncount()
+  */
+  private static void create_test_functions(sqlite3 db){
+    /* 
+    ** A user-defined-function fts5_rowid() that uses xRowid()
+    */
+    fts5_extension_function fts5_rowid = new fts5_extension_function(){
+      @Override public void call(
+          Fts5ExtensionApi ext, 
+          Fts5Context fCx,
+          sqlite3_context pCx, 
+          sqlite3_value argv[]
+      ){
+        long rowid = ext.xRowid(fCx);
+        sqlite3_result_int64(pCx, rowid);
+      }
+      public void xDestroy(){ }
+    };
+
+    /* 
+    ** fts5_columncount() - xColumnCount() 
+    */
+    fts5_extension_function fts5_columncount = new fts5_extension_function(){
+      @Override public void call(
+          Fts5ExtensionApi ext, 
+          Fts5Context fCx,
+          sqlite3_context pCx, 
+          sqlite3_value argv[]
+      ){
+        int nCol = ext.xColumnCount(fCx);
+        sqlite3_result_int(pCx, nCol);
+      }
+      public void xDestroy(){ }
+    };
+
+    /* 
+    ** fts5_columnsize() - xColumnSize() 
+    */
+    fts5_extension_function fts5_columnsize = new fts5_extension_function(){
+      @Override public void call(
+          Fts5ExtensionApi ext, 
+          Fts5Context fCx,
+          sqlite3_context pCx, 
+          sqlite3_value argv[]
+      ){
+        if( argv.length!=1 ){
+          throw new RuntimeException("fts5_columncount: wrong number of args");
+        }
+        int iCol = sqlite3_value_int(argv[0]);
+
+        OutputPointer.Int32 piSz = new OutputPointer.Int32();
+        int rc = ext.xColumnSize(fCx, iCol, piSz);
+        if( rc!=SQLITE_OK ){
+          throw new RuntimeException( sqlite3_errstr(rc) );
+        }
+        sqlite3_result_int(pCx, piSz.get());
+      }
+      public void xDestroy(){ }
+    };
+
+    /* 
+    ** fts5_columntext() - xColumnText() 
+    */
+    fts5_extension_function fts5_columntext = new fts5_extension_function(){
+      @Override public void call(
+          Fts5ExtensionApi ext, 
+          Fts5Context fCx,
+          sqlite3_context pCx, 
+          sqlite3_value argv[]
+      ){
+        if( argv.length!=1 ){
+          throw new RuntimeException("fts5_columntext: wrong number of args");
+        }
+        int iCol = sqlite3_value_int(argv[0]);
+
+        OutputPointer.String pzText = new OutputPointer.String();
+        int rc = ext.xColumnText(fCx, iCol, pzText);
+        if( rc!=SQLITE_OK ){
+          throw new RuntimeException( sqlite3_errstr(rc) );
+        }
+        sqlite3_result_text16(pCx, pzText.get());
+      }
+      public void xDestroy(){ }
+    };
+
+    /* 
+    ** fts5_columntotalsize() - xColumnTotalSize() 
+    */
+    fts5_extension_function fts5_columntsize = new fts5_extension_function(){
+      @Override public void call(
+          Fts5ExtensionApi ext, 
+          Fts5Context fCx,
+          sqlite3_context pCx, 
+          sqlite3_value argv[]
+      ){
+        if( argv.length!=1 ){
+          throw new RuntimeException(
+              "fts5_columntotalsize: wrong number of args"
+          );
+        }
+        int iCol = sqlite3_value_int(argv[0]);
+
+        OutputPointer.Int64 piSz = new OutputPointer.Int64();
+        int rc = ext.xColumnTotalSize(fCx, iCol, piSz);
+        if( rc!=SQLITE_OK ){
+          throw new RuntimeException( sqlite3_errstr(rc) );
+        }
+        sqlite3_result_int64(pCx, piSz.get());
+      }
+      public void xDestroy(){ }
+    };
+
+    /*
+    ** fts5_aux(<fts>, <value>);
+    */
+    class fts5_aux implements fts5_extension_function {
+      @Override public void call(
+          Fts5ExtensionApi ext, 
+          Fts5Context fCx,
+          sqlite3_context pCx, 
+          sqlite3_value argv[]
+      ){
+        if( argv.length>1 ){
+          throw new RuntimeException("fts5_aux: wrong number of args");
+        }
+
+        boolean bClear = (argv.length==1);
+        Object obj = ext.xGetAuxdata(fCx, bClear);
+        if( obj instanceof String ){
+          sqlite3_result_text16(pCx, (String)obj);
+        }
+
+        if( argv.length==1 ){
+          String val = sqlite3_value_text16(argv[0]);
+          if( !val.equals("") ){
+            ext.xSetAuxdata(fCx, val);
+          }
+        }
+      }
+      public void xDestroy(){ }
+    };
+
+    /*
+    ** fts5_inst(<fts>);
+    **
+    ** This is used to test the xInstCount() and xInst() APIs. It returns a
+    ** text value containing a Tcl list with xInstCount() elements. Each
+    ** element is itself a list of 3 integers - the phrase number, column
+    ** number and token offset returned by each call to xInst().
+    */
+    fts5_extension_function fts5_inst = new fts5_extension_function(){
+      @Override public void call(
+          Fts5ExtensionApi ext, 
+          Fts5Context fCx,
+          sqlite3_context pCx, 
+          sqlite3_value argv[]
+      ){
+        if( argv.length!=0 ){
+          throw new RuntimeException("fts5_inst: wrong number of args");
+        }
+
+        OutputPointer.Int32 pnInst = new OutputPointer.Int32();
+        OutputPointer.Int32 piPhrase = new OutputPointer.Int32();
+        OutputPointer.Int32 piCol = new OutputPointer.Int32();
+        OutputPointer.Int32 piOff = new OutputPointer.Int32();
+        String ret = new String();
+
+        int rc = ext.xInstCount(fCx, pnInst);
+        int nInst = pnInst.get();
+        int ii;
+
+        for(ii=0; rc==SQLITE_OK && ii<nInst; ii++){
+          ext.xInst(fCx, ii, piPhrase, piCol, piOff);
+          if( ii>0 ) ret += " ";
+          ret += "{"+piPhrase.get()+" "+piCol.get()+" "+piOff.get()+"}";
+        }
+
+        sqlite3_result_text(pCx, ret);
+      }
+      public void xDestroy(){ }
+    };
+
+    /*
+    ** fts5_pinst(<fts>);
+    **
+    ** Like SQL function fts5_inst(), except using the following
+    **
+    **     xPhraseCount
+    **     xPhraseFirst
+    **     xPhraseNext
+    */
+    fts5_extension_function fts5_pinst = new fts5_extension_function(){
+      @Override public void call(
+          Fts5ExtensionApi ext, 
+          Fts5Context fCx,
+          sqlite3_context pCx, 
+          sqlite3_value argv[]
+      ){
+        if( argv.length!=0 ){
+          throw new RuntimeException("fts5_pinst: wrong number of args");
+        }
+
+        OutputPointer.Int32 piCol = new OutputPointer.Int32();
+        OutputPointer.Int32 piOff = new OutputPointer.Int32();
+        String ret = new String();
+        int rc = SQLITE_OK;
+
+        int nPhrase = ext.xPhraseCount(fCx);
+        int ii;
+
+        for(ii=0; rc==SQLITE_OK && ii<nPhrase; ii++){
+          Fts5PhraseIter pIter = new Fts5PhraseIter();
+          for(rc = ext.xPhraseFirst(fCx, ii, pIter, piCol, piOff);
+              rc==SQLITE_OK && piCol.get()>=0;
+              ext.xPhraseNext(fCx, pIter, piCol, piOff)
+          ){
+            if( !ret.equals("") ) ret += " ";
+            ret += "{"+ii+" "+piCol.get()+" "+piOff.get()+"}";
+          }
+        }
+
+        if( rc!=SQLITE_OK ){
+          throw new RuntimeException("fts5_pinst: rc=" + rc);
+        }else{
+          sqlite3_result_text(pCx, ret);
+        }
+      }
+      public void xDestroy(){ }
+    };
+
+    /*
+    ** fts5_pcolinst(<fts>);
+    **
+    ** Like SQL function fts5_pinst(), except using the following
+    **
+    **     xPhraseFirstColumn
+    **     xPhraseNextColumn
+    */
+    fts5_extension_function fts5_pcolinst = new fts5_extension_function(){
+      @Override public void call(
+          Fts5ExtensionApi ext, 
+          Fts5Context fCx,
+          sqlite3_context pCx, 
+          sqlite3_value argv[]
+      ){
+        if( argv.length!=0 ){
+          throw new RuntimeException("fts5_pcolinst: wrong number of args");
+        }
+
+        OutputPointer.Int32 piCol = new OutputPointer.Int32();
+        String ret = new String();
+        int rc = SQLITE_OK;
+
+        int nPhrase = ext.xPhraseCount(fCx);
+        int ii;
+
+        for(ii=0; rc==SQLITE_OK && ii<nPhrase; ii++){
+          Fts5PhraseIter pIter = new Fts5PhraseIter();
+          for(rc = ext.xPhraseFirstColumn(fCx, ii, pIter, piCol);
+              rc==SQLITE_OK && piCol.get()>=0;
+              ext.xPhraseNextColumn(fCx, pIter, piCol)
+          ){
+            if( !ret.equals("") ) ret += " ";
+            ret += "{"+ii+" "+piCol.get()+"}";
+          }
+        }
+
+        if( rc!=SQLITE_OK ){
+          throw new RuntimeException("fts5_pcolinst: rc=" + rc);
+        }else{
+          sqlite3_result_text(pCx, ret);
+        }
+      }
+      public void xDestroy(){ }
+    };
+
+    /*
+    ** fts5_rowcount(<fts>);
+    */
+    fts5_extension_function fts5_rowcount = new fts5_extension_function(){
+      @Override public void call(
+          Fts5ExtensionApi ext, 
+          Fts5Context fCx,
+          sqlite3_context pCx, 
+          sqlite3_value argv[]
+      ){
+        if( argv.length!=0 ){
+          throw new RuntimeException("fts5_rowcount: wrong number of args");
+        }
+        OutputPointer.Int64 pnRow = new OutputPointer.Int64();
+
+        int rc = ext.xRowCount(fCx, pnRow);
+        if( rc==SQLITE_OK ){
+          sqlite3_result_int64(pCx, pnRow.get());
+        }else{
+          throw new RuntimeException("fts5_rowcount: rc=" + rc);
+        }
+      }
+      public void xDestroy(){ }
+    };
+
+    /*
+    ** fts5_phrasesize(<fts>);
+    */
+    fts5_extension_function fts5_phrasesize = new fts5_extension_function(){
+      @Override public void call(
+          Fts5ExtensionApi ext, 
+          Fts5Context fCx,
+          sqlite3_context pCx, 
+          sqlite3_value argv[]
+      ){
+        if( argv.length!=1 ){
+          throw new RuntimeException("fts5_phrasesize: wrong number of args");
+        }
+        int iPhrase = sqlite3_value_int(argv[0]);
+
+        int sz = ext.xPhraseSize(fCx, iPhrase);
+        sqlite3_result_int(pCx, sz);
+      }
+      public void xDestroy(){ }
+    };
+
+    /*
+    ** fts5_phrasehits(<fts>, <phrase-number>);
+    **
+    ** Use the xQueryPhrase() API to determine how many hits, in total,
+    ** there are for phrase <phrase-number> in the database.
+    */
+    fts5_extension_function fts5_phrasehits = new fts5_extension_function(){
+      @Override public void call(
+          Fts5ExtensionApi ext, 
+          Fts5Context fCx,
+          sqlite3_context pCx, 
+          sqlite3_value argv[]
+      ){
+        if( argv.length!=1 ){
+          throw new RuntimeException("fts5_phrasesize: wrong number of args");
+        }
+        int iPhrase = sqlite3_value_int(argv[0]);
+        int rc = SQLITE_OK;
+
+        class MyCallback implements Fts5ExtensionApi.XQueryPhraseCallback {
+          public int nRet = 0;
+          public int getRet() { return nRet; }
+
+          @Override
+          public int call(Fts5ExtensionApi fapi, Fts5Context cx){
+            OutputPointer.Int32 pnInst = new OutputPointer.Int32();
+            int rc = fapi.xInstCount(cx, pnInst);
+            nRet += pnInst.get();
+            return rc;
+          }
+        };
+
+        MyCallback xCall = new MyCallback();
+        rc = ext.xQueryPhrase(fCx, iPhrase, xCall);
+        if( rc!=SQLITE_OK ){
+          throw new RuntimeException("fts5_phrasehits: rc=" + rc);
+        }
+        sqlite3_result_int(pCx, xCall.getRet());
+      }
+      public void xDestroy(){ }
+    };
+
+    /*
+    ** fts5_tokenize(<fts>, <text>)
+    */
+    fts5_extension_function fts5_tokenize = new fts5_extension_function(){
+      @Override public void call(
+          Fts5ExtensionApi ext, 
+          Fts5Context fCx,
+          sqlite3_context pCx, 
+          sqlite3_value argv[]
+      ){
+        if( argv.length!=1 ){
+          throw new RuntimeException("fts5_tokenize: wrong number of args");
+        }
+        byte[] utf8 = sqlite3_value_text(argv[0]);
+        int rc = SQLITE_OK;
+
+        class MyCallback implements XTokenizeCallback {
+          private List<String> myList = new ArrayList<String>();
+
+          public String getval() {
+            return String.join("+", myList);
+          }
+
+          @Override
+          public int call(int tFlags, byte[] txt, int iStart, int iEnd){
+            try {
+              String str = new String(txt, "UTF-8");
+              myList.add(str);
+            } catch (Exception e) {
+            }
+            return SQLITE_OK;
+          }
+        };
+
+        MyCallback xCall = new MyCallback();
+        ext.xTokenize(fCx, utf8, xCall);
+        sqlite3_result_text16(pCx, xCall.getval());
+
+        if( rc!=SQLITE_OK ){
+          throw new RuntimeException("fts5_tokenize: rc=" + rc);
+        }
+      }
+      public void xDestroy(){ }
+    };
+
+    fts5_api api = fts5_api.getInstanceForDb(db);
+    api.xCreateFunction("fts5_rowid", fts5_rowid);
+    api.xCreateFunction("fts5_columncount", fts5_columncount);
+    api.xCreateFunction("fts5_columnsize", fts5_columnsize);
+    api.xCreateFunction("fts5_columntext", fts5_columntext);
+    api.xCreateFunction("fts5_columntotalsize", fts5_columntsize);
+
+    api.xCreateFunction("fts5_aux1", new fts5_aux());
+    api.xCreateFunction("fts5_aux2", new fts5_aux());
+
+    api.xCreateFunction("fts5_inst", fts5_inst);
+    api.xCreateFunction("fts5_pinst", fts5_pinst);
+    api.xCreateFunction("fts5_pcolinst", fts5_pcolinst);
+    api.xCreateFunction("fts5_rowcount", fts5_rowcount);
+    api.xCreateFunction("fts5_phrasesize", fts5_phrasesize);
+    api.xCreateFunction("fts5_phrasehits", fts5_phrasehits);
+    api.xCreateFunction("fts5_tokenize", fts5_tokenize);
+  }
+  /* 
+  ** Test of various Fts5ExtensionApi methods 
+  */
+  private static void test2(){
+
+    /* Open db and populate an fts5 table */
+    sqlite3 db = createNewDb();
+    do_execsql_test(db, 
+      "CREATE VIRTUAL TABLE ft USING fts5(a, b);" +
+      "INSERT INTO ft(rowid, a, b) VALUES(-9223372036854775808, 'x', 'x');" +
+      "INSERT INTO ft(rowid, a, b) VALUES(0, 'x', 'x');" +
+      "INSERT INTO ft(rowid, a, b) VALUES(1, 'x y z', 'x y z');" +
+      "INSERT INTO ft(rowid, a, b) VALUES(2, 'x y z', 'x z');" +
+      "INSERT INTO ft(rowid, a, b) VALUES(3, 'x y z', 'x y z');" +
+      "INSERT INTO ft(rowid, a, b) VALUES(9223372036854775807, 'x', 'x');"
+    );
+
+    create_test_functions(db);
+
+    /* Test that fts5_rowid() seems to work */
+    do_execsql_test(db, 
+      "SELECT rowid==fts5_rowid(ft) FROM ft('x')",
+      "[1, 1, 1, 1, 1, 1]"
+    );
+
+    /* Test fts5_columncount() */
+    do_execsql_test(db, 
+      "SELECT fts5_columncount(ft) FROM ft('x')",
+      "[2, 2, 2, 2, 2, 2]"
+    );
+
+    /* Test fts5_columnsize() */
+    do_execsql_test(db, 
+      "SELECT fts5_columnsize(ft, 0) FROM ft('x') ORDER BY rowid",
+      "[1, 1, 3, 3, 3, 1]"
+    );
+    do_execsql_test(db, 
+      "SELECT fts5_columnsize(ft, 1) FROM ft('x') ORDER BY rowid",
+      "[1, 1, 3, 2, 3, 1]"
+    );
+    do_execsql_test(db, 
+      "SELECT fts5_columnsize(ft, -1) FROM ft('x') ORDER BY rowid",
+      "[2, 2, 6, 5, 6, 2]"
+    );
+
+    /* Test that xColumnSize() returns SQLITE_RANGE if the column number
+    ** is out-of range */
+    try {
+      do_execsql_test(db, 
+        "SELECT fts5_columnsize(ft, 2) FROM ft('x') ORDER BY rowid"
+      );
+    } catch( RuntimeException e ){
+      affirm( e.getMessage().matches(".*column index out of range") );
+    }
+
+    /* Test fts5_columntext() */
+    do_execsql_test(db, 
+      "SELECT fts5_columntext(ft, 0) FROM ft('x') ORDER BY rowid",
+      "[x, x, x y z, x y z, x y z, x]"
+    );
+    do_execsql_test(db, 
+      "SELECT fts5_columntext(ft, 1) FROM ft('x') ORDER BY rowid",
+      "[x, x, x y z, x z, x y z, x]"
+    );
+    boolean threw = false;
+    try{
+      /* columntext() used to return NULLs when given an out-of bounds column
+         but now results in a range error. */
+      do_execsql_test(db, 
+        "SELECT fts5_columntext(ft, 2) FROM ft('x') ORDER BY rowid",
+        "[null, null, null, null, null, null]"
+      );
+    }catch(Exception e){
+      threw = true;
+      affirm( e.getMessage().matches(".*column index out of range") );
+    }
+    affirm( threw );
+    threw = false;
+
+    /* Test fts5_columntotalsize() */
+    do_execsql_test(db, 
+      "SELECT fts5_columntotalsize(ft, 0) FROM ft('x') ORDER BY rowid",
+      "[12, 12, 12, 12, 12, 12]"
+    );
+    do_execsql_test(db, 
+      "SELECT fts5_columntotalsize(ft, 1) FROM ft('x') ORDER BY rowid",
+      "[11, 11, 11, 11, 11, 11]"
+    );
+    do_execsql_test(db, 
+      "SELECT fts5_columntotalsize(ft, -1) FROM ft('x') ORDER BY rowid",
+      "[23, 23, 23, 23, 23, 23]"
+    );
+
+    /* Test that xColumnTotalSize() returns SQLITE_RANGE if the column 
+    ** number is out-of range */
+    try {
+      do_execsql_test(db, 
+        "SELECT fts5_columntotalsize(ft, 2) FROM ft('x') ORDER BY rowid"
+      );
+    } catch( RuntimeException e ){
+      affirm( e.getMessage().matches(".*column index out of range") );
+    }
+
+    do_execsql_test(db, 
+      "SELECT rowid, fts5_rowcount(ft) FROM ft('z')",
+      "[1, 6, 2, 6, 3, 6]"
+    );
+
+    sqlite3_close_v2(db);
+  }
+
+  /* 
+  ** Test of various Fts5ExtensionApi methods 
+  */
+  private static void test3(){
+
+    /* Open db and populate an fts5 table */
+    sqlite3 db = createNewDb();
+    do_execsql_test(db, 
+      "CREATE VIRTUAL TABLE ft USING fts5(a, b);" +
+      "INSERT INTO ft(a, b) VALUES('the one', 1);" +
+      "INSERT INTO ft(a, b) VALUES('the two', 2);" +
+      "INSERT INTO ft(a, b) VALUES('the three', 3);" +
+      "INSERT INTO ft(a, b) VALUES('the four', '');"
+    );
+    create_test_functions(db);
+
+    /* Test fts5_aux1() + fts5_aux2() - users of xGetAuxdata and xSetAuxdata */
+    do_execsql_test(db,
+      "SELECT fts5_aux1(ft, a) FROM ft('the')",
+      "[null, the one, the two, the three]"
+    );
+    do_execsql_test(db,
+      "SELECT fts5_aux2(ft, b) FROM ft('the')",
+      "[null, 1, 2, 3]"
+    );
+    do_execsql_test(db,
+      "SELECT fts5_aux1(ft, a), fts5_aux2(ft, b) FROM ft('the')",
+      "[null, null, the one, 1, the two, 2, the three, 3]"
+    );
+    do_execsql_test(db,
+      "SELECT fts5_aux1(ft, b), fts5_aux1(ft) FROM ft('the')",
+      "[null, 1, 1, 2, 2, 3, 3, null]"
+    );
+  }
+
+  /* 
+  ** Test of various Fts5ExtensionApi methods 
+  */
+  private static void test4(){
+
+    /* Open db and populate an fts5 table */
+    sqlite3 db = createNewDb();
+    create_test_functions(db);
+    do_execsql_test(db, 
+      "CREATE VIRTUAL TABLE ft USING fts5(a, b);" +
+      "INSERT INTO ft(a, b) VALUES('one two three', 'two three four');" +
+      "INSERT INTO ft(a, b) VALUES('two three four', 'three four five');" +
+      "INSERT INTO ft(a, b) VALUES('three four five', 'four five six');" 
+    );
+
+
+    do_execsql_test(db,
+      "SELECT fts5_inst(ft) FROM ft('two')",
+      "[{0 0 1} {0 1 0}, {0 0 0}]"
+    );
+    do_execsql_test(db,
+      "SELECT fts5_inst(ft) FROM ft('four')",
+      "[{0 1 2}, {0 0 2} {0 1 1}, {0 0 1} {0 1 0}]"
+    );
+
+    do_execsql_test(db,
+      "SELECT fts5_inst(ft) FROM ft('a OR b OR four')",
+      "[{2 1 2}, {2 0 2} {2 1 1}, {2 0 1} {2 1 0}]"
+    );
+    do_execsql_test(db,
+      "SELECT fts5_inst(ft) FROM ft('two four')",
+      "[{0 0 1} {0 1 0} {1 1 2}, {0 0 0} {1 0 2} {1 1 1}]"
+    );
+
+    do_execsql_test(db,
+      "SELECT fts5_pinst(ft) FROM ft('two')",
+      "[{0 0 1} {0 1 0}, {0 0 0}]"
+    );
+    do_execsql_test(db,
+      "SELECT fts5_pinst(ft) FROM ft('four')",
+      "[{0 1 2}, {0 0 2} {0 1 1}, {0 0 1} {0 1 0}]"
+    );
+    do_execsql_test(db,
+      "SELECT fts5_pinst(ft) FROM ft('a OR b OR four')",
+      "[{2 1 2}, {2 0 2} {2 1 1}, {2 0 1} {2 1 0}]"
+    );
+    do_execsql_test(db,
+      "SELECT fts5_pinst(ft) FROM ft('two four')",
+      "[{0 0 1} {0 1 0} {1 1 2}, {0 0 0} {1 0 2} {1 1 1}]"
+    );
+
+    do_execsql_test(db,
+      "SELECT fts5_pcolinst(ft) FROM ft('two')",
+      "[{0 0} {0 1}, {0 0}]"
+    );
+    do_execsql_test(db,
+      "SELECT fts5_pcolinst(ft) FROM ft('four')",
+      "[{0 1}, {0 0} {0 1}, {0 0} {0 1}]"
+    );
+    do_execsql_test(db,
+      "SELECT fts5_pcolinst(ft) FROM ft('a OR b OR four')",
+      "[{2 1}, {2 0} {2 1}, {2 0} {2 1}]"
+    );
+    do_execsql_test(db,
+      "SELECT fts5_pcolinst(ft) FROM ft('two four')",
+      "[{0 0} {0 1} {1 1}, {0 0} {1 0} {1 1}]"
+    );
+
+    do_execsql_test(db,
+      "SELECT fts5_phrasesize(ft, 0) FROM ft('four five six') LIMIT 1;",
+      "[1]"
+    );
+    do_execsql_test(db,
+      "SELECT fts5_phrasesize(ft, 0) FROM ft('four + five + six') LIMIT 1;",
+      "[3]"
+    );
+
+
+    sqlite3_close_v2(db);
+  }
+
+  private static void test5(){
+    /* Open db and populate an fts5 table */
+    sqlite3 db = createNewDb();
+    create_test_functions(db);
+    do_execsql_test(db, 
+      "CREATE VIRTUAL TABLE ft USING fts5(x, b);" +
+      "INSERT INTO ft(x) VALUES('one two three four five six seven eight');" +
+      "INSERT INTO ft(x) VALUES('one two one four one six one eight');" +
+      "INSERT INTO ft(x) VALUES('one two three four five six seven eight');"
+    );
+
+    do_execsql_test(db,
+      "SELECT fts5_phrasehits(ft, 0) FROM ft('one') LIMIT 1",
+      "[6]"
+    );
+
+    sqlite3_close_v2(db);
+  }
+
+  private static void test6(){
+    sqlite3 db = createNewDb();
+    create_test_functions(db);
+    do_execsql_test(db, 
+      "CREATE VIRTUAL TABLE ft USING fts5(x, b);" +
+      "INSERT INTO ft(x) VALUES('one two three four five six seven eight');" 
+    );
+
+    do_execsql_test(db,
+      "SELECT fts5_tokenize(ft, 'abc def ghi') FROM ft('one')",
+      "[abc+def+ghi]"
+    );
+    do_execsql_test(db,
+      "SELECT fts5_tokenize(ft, 'it''s BEEN a...') FROM ft('one')",
+      "[it+s+been+a]"
+    );
+
+    sqlite3_close_v2(db);
+  }
+
+  private static synchronized void runTests(){
+    test1();
+    test2();
+    test3();
+    test4();
+    test5();
+    test6();
+  }
+
+  public TesterFts5(){
+    runTests();
+  }
+}
diff --git a/ext/jni/src/org/sqlite/jni/fts5/XTokenizeCallback.java b/ext/jni/src/org/sqlite/jni/fts5/XTokenizeCallback.java
new file mode 100644
index 0000000000000000000000000000000000000000..3aa514f314064c600dba9ca1c5c9c8aa1505088c
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/fts5/XTokenizeCallback.java
@@ -0,0 +1,22 @@
+/*
+** 2023-08-04
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the JNI bindings for the sqlite3 C API.
+*/
+package org.sqlite.jni.fts5;
+
+
+/**
+   Callback type for use with xTokenize() variants.
+*/
+public interface XTokenizeCallback {
+  int call(int tFlags, byte[] txt, int iStart, int iEnd);
+}
diff --git a/ext/jni/src/org/sqlite/jni/fts5/fts5_api.java b/ext/jni/src/org/sqlite/jni/fts5/fts5_api.java
new file mode 100644
index 0000000000000000000000000000000000000000..d7d2da430d3299a9ede2f8e7e5dd016caeeb1482
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/fts5/fts5_api.java
@@ -0,0 +1,76 @@
+/*
+** 2023-08-05
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the JNI bindings for the sqlite3 C API.
+*/
+package org.sqlite.jni.fts5;
+import org.sqlite.jni.annotation.*;
+import org.sqlite.jni.capi.*;
+
+/**
+   A wrapper for communicating C-level (fts5_api*) instances with
+   Java. These wrappers do not own their associated pointer, they
+   simply provide a type-safe way to communicate it between Java and C
+   via JNI.
+*/
+public final class fts5_api extends NativePointerHolder<fts5_api> {
+  /* Only invoked from JNI */
+  private fts5_api(){}
+
+  public static final int iVersion = 2;
+
+  /**
+     Returns the fts5_api instance associated with the given db, or
+     null if something goes horribly wrong.
+  */
+  public static synchronized native fts5_api getInstanceForDb(@NotNull sqlite3 db);
+
+  public synchronized native int xCreateFunction(@NotNull String name,
+                                                 @Nullable Object userData,
+                                                 @NotNull fts5_extension_function xFunction);
+
+  /**
+     Convenience overload which passes null as the 2nd argument to the
+     3-parameter form.
+  */
+  public int xCreateFunction(@NotNull String name,
+                             @NotNull fts5_extension_function xFunction){
+    return xCreateFunction(name, null, xFunction);
+  }
+
+  // /* Create a new auxiliary function */
+  // int (*xCreateFunction)(
+  //   fts5_api *pApi,
+  //   const char *zName,
+  //   void *pContext,
+  //   fts5_extension_function xFunction,
+  //   void (*xDestroy)(void*)
+  // );
+
+  // Still potentially todo:
+
+  // int (*xCreateTokenizer)(
+  //   fts5_api *pApi,
+  //   const char *zName,
+  //   void *pContext,
+  //   fts5_tokenizer *pTokenizer,
+  //   void (*xDestroy)(void*)
+  // );
+
+  // /* Find an existing tokenizer */
+  // int (*xFindTokenizer)(
+  //   fts5_api *pApi,
+  //   const char *zName,
+  //   void **ppContext,
+  //   fts5_tokenizer *pTokenizer
+  // );
+
+}
diff --git a/ext/jni/src/org/sqlite/jni/fts5/fts5_extension_function.java b/ext/jni/src/org/sqlite/jni/fts5/fts5_extension_function.java
new file mode 100644
index 0000000000000000000000000000000000000000..5e47633baa9bbcd0b911cf3a8612fd6137c6f107
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/fts5/fts5_extension_function.java
@@ -0,0 +1,47 @@
+/*
+** 2023-08-05
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the JNI bindings for the sqlite3 C API.
+*/
+package org.sqlite.jni.fts5;
+import org.sqlite.jni.capi.sqlite3_context;
+import org.sqlite.jni.capi.sqlite3_value;
+
+/**
+   JNI-level wrapper for C's fts5_extension_function type.
+*/
+public interface fts5_extension_function {
+  // typedef void (*fts5_extension_function)(
+  //   const Fts5ExtensionApi *pApi,   /* API offered by current FTS version */
+  //   Fts5Context *pFts,              /* First arg to pass to pApi functions */
+  //   sqlite3_context *pCtx,          /* Context for returning result/error */
+  //   int nVal,                       /* Number of values in apVal[] array */
+  //   sqlite3_value **apVal           /* Array of trailing arguments */
+  // );
+
+  /**
+     The callback implementation, corresponding to the xFunction
+     argument of C's fts5_api::xCreateFunction().
+  */
+  void call(Fts5ExtensionApi ext, Fts5Context fCx,
+            sqlite3_context pCx, sqlite3_value argv[]);
+  /**
+     Is called when this function is destroyed by sqlite3. Typically
+     this function will be empty.
+  */
+  void xDestroy();
+
+  public static abstract class Abstract implements fts5_extension_function {
+    @Override public abstract void call(Fts5ExtensionApi ext, Fts5Context fCx,
+                                        sqlite3_context pCx, sqlite3_value argv[]);
+    @Override public void xDestroy(){}
+  }
+}
diff --git a/ext/jni/src/org/sqlite/jni/fts5/fts5_tokenizer.java b/ext/jni/src/org/sqlite/jni/fts5/fts5_tokenizer.java
new file mode 100644
index 0000000000000000000000000000000000000000..f4ada4dc30db020f4c575c8695681b39da5b936e
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/fts5/fts5_tokenizer.java
@@ -0,0 +1,49 @@
+/*
+** 2023-08-05
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the JNI bindings for the sqlite3 C API.
+*/
+package org.sqlite.jni.fts5;
+import org.sqlite.jni.capi.NativePointerHolder;
+import org.sqlite.jni.annotation.NotNull;
+
+/**
+   A wrapper for communicating C-level (fts5_tokenizer*) instances with
+   Java. These wrappers do not own their associated pointer, they
+   simply provide a type-safe way to communicate it between Java and C
+   via JNI.
+*/
+public final class fts5_tokenizer extends NativePointerHolder<fts5_tokenizer> {
+  /* Only invoked by JNI */
+  private fts5_tokenizer(){}
+
+  // int (*xCreate)(void*, const char **azArg, int nArg, Fts5Tokenizer **ppOut);
+  // void (*xDelete)(Fts5Tokenizer*);
+
+  public native int xTokenize(@NotNull Fts5Tokenizer t, int tokFlags,
+                              @NotNull byte pText[],
+                              @NotNull XTokenizeCallback callback);
+
+
+  // int (*xTokenize)(Fts5Tokenizer*,
+  //     void *pCtx,
+  //     int flags,            /* Mask of FTS5_TOKENIZE_* flags */
+  //     const char *pText, int nText,
+  //     int (*xToken)(
+  //       void *pCtx,         /* Copy of 2nd argument to xTokenize() */
+  //       int tflags,         /* Mask of FTS5_TOKEN_* flags */
+  //       const char *pToken, /* Pointer to buffer containing token */
+  //       int nToken,         /* Size of token in bytes */
+  //       int iStart,         /* Byte offset of token within input text */
+  //       int iEnd            /* Byte offset of end of token within input text */
+  //     )
+  // );
+}
diff --git a/ext/jni/src/org/sqlite/jni/test-script-interpreter.md b/ext/jni/src/org/sqlite/jni/test-script-interpreter.md
new file mode 100644
index 0000000000000000000000000000000000000000..939f77e1be96bc658796292c9e589ff125ab0567
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/test-script-interpreter.md
@@ -0,0 +1,270 @@
+# Specifications For A Rudimentary SQLite Test Script Interpreter
+
+## Overview
+
+The purpose of the Test Script Interpreter is to read and interpret
+script files that contain SQL commands and desired results.  The
+interpreter will check results and report any discrepencies found.
+
+The test script files are ASCII text files.  The filename always ends with
+".test".  Each script is evaluated independently; context does not carry
+forward from one script to the next.  So, for example, the --null command
+run in one test script does not cause any changes in the behavior of
+subsequent test scripts.  All open database connections are closed
+at the end of each test script.  All database files created by a test
+script are deleted when the script finishes.
+
+## Parsing Rules:
+
+  1.   The test script is read line by line, where a line is a sequence of
+       characters that runs up to the next '\\n' (0x0a) character or until
+       the end of the file.  There is never a need to read ahead past the
+       end of the current line.
+
+  2.   If any line contains the string " MODULE_NAME:" (with a space before
+       the initial "M") or "MIXED_MODULE_NAME:" then that test script is
+       incompatible with this spec.  Processing of the test script should
+       end immediately.  There is no need to read any more of the file.
+       In verbose mode, the interpreter might choose to emit an informational
+       messages saying that the test script was abandoned due to an
+       incompatible module type.
+
+  3.   If any line contains the string "SCRIPT_MODULE_NAME:" then the input
+       script is known to be of the correct type for this specification and
+       processing may continue.  The "MODULE_NAME" checking in steps 2 and 3
+       may optionally be discontinued after sighting a "SCRIPT_MODULE_NAME".
+
+  4.   If any line contains "REQUIRED_PROPERTIES:" and that substring is followed
+       by any non-whitespace text, then the script is not compatible with this
+       spec.  Processing should stop immediately.  In verbose mode, the
+       interpreter might choose to emit an information message saying that the
+       test script was abandoned due to unsupported requirement properties.
+
+  5.   If any line begins with the "\|" (0x7c) character, that indicates that
+       the input script is not compatible with this specification.  Processing
+       of the script should stop immediately.  In verbose mode, the interpreter
+       might choose to emit an informational message indicating that the
+       test script was abandoned because it contained "a dbtotxt format database
+       specification".
+
+  6.   Any line that begins with "#" is a C-preprocessor line.  The interpreter
+       described by this spec does not know how to deal with C-preprocessor lines.
+       Hence, processing should be abandoned.  In verbose mode, the interpreter
+       might emit an informational message similar to
+       "script NAME abandoned due to C-preprocessor line: ..."
+
+  7.   If a line begins with exactly two minus signs followed by a
+       lowercase letter, that is a command.  Process commands as described
+       below.
+
+  8.   All other lines should be accumulated into the "input buffer".
+       The various commands will have access to this input buffer.
+       Some commands will reset the buffer.
+
+## Initialization
+
+The initial state of the interpreter at the start of processing each script
+is as if the following command sequence had been run:
+
+> ~~~
+--close all
+--db 0
+--new test.db
+--null nil
+~~~
+
+In words, all database connections are closed except for connection 0 (the
+default) which is open on an empty database named "test.db".  The string
+"nil" is displayed for NULL column values.
+
+The only context carried forward after the evaluation of one test script
+into the evaluation of the next test script is the count of the number of
+tests run and the number of failures seen.
+
+## Commands:
+
+Each command looks like an SQL comment.  The command begins at the left
+margin (no leading space) and starts with exactly 2 minus signs ("-").
+The command name consists of lowercase letters and maybe a "-" or two.
+Some commands have arguments.
+
+The arguments are separated from the command name by one or more spaces.
+
+Commands have access to the input buffer and might reset the input buffer.
+The command can also optionally read (and consume) additional text from
+script that comes after the command.
+
+Unknown or unrecognized commands indicate that the script contains features
+that are not (yet) supported by this specification.  Processing of the
+script should terminate immediately.  When this happens and when the
+interpreter is in a "verbose" mode, the interpreter might choose to emit
+an informational message along the lines of "test script NAME abandoned
+due to unsupported command: --whatever".
+
+The initial implemention will only recognize a few commands.  Other
+commands may be added later.  The following is the initial set of
+commands:
+
+### The --testcase command
+
+Every test case starts with a --testcase command.  The --testcase
+command resets both the "input buffer" and the "result buffer".  The
+argument to the --testcase command is the name of the test case.  That
+test case name is used for logging and debugging and when printing
+errors. The input buffer is set to the body of the test case.
+
+### The --result command
+
+The --result command tries to execute the text in the input buffer as SQL.
+For each row of result coming out of this SQL, the text of that result is
+appended to the "result buffer".  If a result row contains multiple columns,
+the columns are processed from left to right.  For each column, text is
+appended to the result buffer according to the following rules:
+
+  *   If the result buffer already contains some text, append a space.
+      (In this way, all column values and all row values are separated from
+      each other by a single space.)
+
+  *   If sqlite3_column_text() returns NULL, then append "nil" - or
+      some other text that is specified by the --null command - and skip
+      all subsequent rules.
+
+  *   If sqlite3_column_text() is an empty string, append `{}` to the
+      result buffer and skip all subsequent rules.
+
+  *   If sqlite3_column_text() does not contain any special
+      characters, append it to the result buffer without any
+      formatting and skip all subsequent rules. Special characters are:
+      0x00 to 0x20 (inclusive), double-quote (0x22), backslash (0x5c),
+      curly braces (0x7b and 0x7d).
+
+  *   If sqlite3_column_text() does not contains curly braces, then put
+      the text inside of `{...}` and append it and skip all subsequent rules.
+
+  *   Append the text within double-quotes (`"..."`) and within the text
+      escape '"' and '\\' by prepending a single '\\' and escape any
+      control characters (characters less than 0x20) using octal notation:
+      '\\NNN'.
+
+If an error is encountered while running the SQL, then append the
+symbolic C-preprocessor name for the error
+code (ex: "SQLITE_CONSTRAINT") as if it were a column value.  Then append
+the error message text as if it where a column value.  Then stop processing.
+
+After the SQL text has been run, compare the content of the result buffer
+against the argument to the --result command and report a testing error if
+there are any differences.
+
+The --result command resets the input buffer, but it does not reset
+the result buffer.  This distinction does not matter for the --result
+command itself, but it is important for related commands like --glob
+and --notglob.  Sometimes test cases will contains a bunch of SQL
+followed by multiple --glob and/or --notglob statements.  All of the
+globs should be evaluated agains the result buffer, but the SQL should
+only be run once.  This is accomplished by resetting the input buffer
+but not the result buffer.
+
+### The --glob command
+
+The --glob command works just like --result except that the argument to
+--glob is interpreted as a TEST-GLOB pattern and the results are compared
+using that glob pattern rather than using strcmp().  Other than that,
+the two operate the same.
+
+The TEST-GLOB pattern is slightly different for a standard GLOB:
+
+   *    The '*' character matches zero or more characters.
+
+   *    The '?' character matches any single character
+
+   *    The '[...]' character sequence machines a single character
+        in between the brackets.
+
+   *    The '#' character matches one or more digits  (This is the main
+        difference between standard unix-glob and TEST-GLOB.  unix-glob
+        does not have this feature.  It was added to because it comes
+        up a lot during SQLite testing.)
+
+### The --notglob command
+
+The --notglob command works just like --glob except that it reports an
+error if the GLOB does match, rather than if the GLOB does not match.
+
+### The --oom command
+
+This command is to be used for out-of-memory testing.  It means that
+OOM errors should be simulated to ensure that SQLite is able to deal with
+them.  This command can be silently ignored for now.  We might add support
+for this later.
+
+### The --tableresult command
+
+The --tableresult command works like --glob except that the GLOB pattern
+to be matched is taken from subsequent lines of the input script up to
+the next --end.  Every span of one or more whitespace characters in this
+pattern text is collapsed into a single space (0x20).
+Leading and trailing whitespace are removed from the pattern.
+The --end that ends the GLOB pattern is not part of the GLOB pattern, but
+the --end is consumed from the script input.
+
+### The --new and --open commands
+
+The --new and --open commands cause a database file to be opened.
+The name of the file is the argument to the command.  The --new command
+opens an initially empty database (it deletes the file before opening it)
+whereas the --open command opens an existing database if it already
+exists.
+
+### The --db command
+
+The script interpreter can have up to 7 different SQLite database
+connections open at a time.  The --db command is used to switch between
+them.  The argument to --db is an integer between 0 and 6 that selects
+which database connection to use moving forward.
+
+### The --close command
+
+The --close command causes an existing database connection to close.
+This command is a no-op if the database connection is not currently
+open.  There can be up to 7 different database connections, numbered 0
+through 6.  The number of the database connection to close is an
+argument to the --close command, which will fail if an out-of-range
+value is provided.  Or if the argument to --close is "all" then all
+open database connections are closed. If passed no argument, the
+currently-active database is assumed.
+
+### The --null command
+
+The NULL command changes the text that is used to represent SQL NULL
+values in the result buffer.
+
+### The --run command
+
+The --run command executes text in the input buffer as if it where SQL.
+However, nothing is added to the result buffer.  Any output from the SQL
+is silently ignored. Errors in the SQL are silently ignored.
+
+The --run command normally executes the SQL in the current database
+connection.  However, if --run has an argument that is an integer between
+0 and 6 then the SQL is run in the alternative database connection specified
+by that argument.
+
+### The --json and --json-block commands
+
+The --json and --json-block commands work like --result and --tableresult,
+respectively.  The difference is that column values are appended to the
+result buffer literally, without ever enclosing the values in `{...}` or
+`"..."` and without escaping any characters in the column value and comparison
+is always an exact strcmp() not a GLOB.
+
+### The --print command
+
+The --print command emits both its arguments and its body (if any) to
+stdout, indenting each line of output.
+
+### The --column-names command
+
+The --column-names command requires 0 or 1 as an argument, to disable
+resp.  enable it, and modifies SQL execution to include column names
+in output. When this option is on, each column value emitted gets
+prefixed by its column name, with a single space between them.
diff --git a/ext/jni/src/org/sqlite/jni/wrapper1/AggregateFunction.java b/ext/jni/src/org/sqlite/jni/wrapper1/AggregateFunction.java
new file mode 100644
index 0000000000000000000000000000000000000000..fc63b53542e84f0232b689a51f036c1052ce40d3
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/wrapper1/AggregateFunction.java
@@ -0,0 +1,144 @@
+/*
+** 2023-10-16
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the wrapper1 interface for sqlite3.
+*/
+package org.sqlite.jni.wrapper1;
+
+/**
+   EXPERIMENTAL/INCOMPLETE/UNTESTED
+
+   A SqlFunction implementation for aggregate functions. The T type
+   represents the type of data accumulated by this aggregate while it
+   works. e.g. a SUM()-like UDF might use Integer or Long and a
+   CONCAT()-like UDF might use a StringBuilder or a List<String>.
+*/
+public abstract class AggregateFunction<T> implements SqlFunction  {
+
+  /**
+     As for the xStep() argument of the C API's
+     sqlite3_create_function().  If this function throws, the
+     exception is reported via sqlite3_result_error().
+  */
+  public abstract void xStep(SqlFunction.Arguments args);
+
+  /**
+     As for the xFinal() argument of the C API's
+     sqlite3_create_function(). If this function throws, it is
+     translated into sqlite3_result_error().
+
+     Note that the passed-in object will not actually contain any
+     arguments for xFinal() but will contain the context object needed
+     for setting the call's result or error state.
+  */
+  public abstract void xFinal(SqlFunction.Arguments args);
+
+  /**
+     Optionally override to be notified when the UDF is finalized by
+     SQLite.
+  */
+  public void xDestroy() {}
+
+  /**
+     PerContextState assists aggregate and window functions in
+     managing their accumulator state across calls to the UDF's
+     callbacks.
+
+     <p>T must be of a type which can be legally stored as a value in
+     java.util.HashMap<KeyType,T>.
+
+     <p>If a given aggregate or window function is called multiple times
+     in a single SQL statement, e.g. SELECT MYFUNC(A), MYFUNC(B)...,
+     then the clients need some way of knowing which call is which so
+     that they can map their state between their various UDF callbacks
+     and reset it via xFinal(). This class takes care of such
+     mappings.
+
+     <p>This class works by mapping
+     sqlite3_context.getAggregateContext() to a single piece of
+     state, of a client-defined type (the T part of this class), which
+     persists across a "matching set" of the UDF's callbacks.
+
+     <p>This class is a helper providing commonly-needed functionality
+     - it is not required for use with aggregate or window functions.
+     Client UDFs are free to perform such mappings using custom
+     approaches. The provided {@link AggregateFunction} and {@link
+     WindowFunction} classes use this.
+  */
+  public static final class PerContextState<T> {
+    private final java.util.Map<Long,ValueHolder<T>> map
+      = new java.util.HashMap<>();
+
+    /**
+       Should be called from a UDF's xStep(), xValue(), and xInverse()
+       methods, passing it that method's first argument and an initial
+       value for the persistent state. If there is currently no
+       mapping for the given context within the map, one is created
+       using the given initial value, else the existing one is used
+       and the 2nd argument is ignored.  It returns a ValueHolder<T>
+       which can be used to modify that state directly without
+       requiring that the client update the underlying map's entry.
+
+       <p>The caller is obligated to eventually call
+       takeAggregateState() to clear the mapping.
+    */
+    public ValueHolder<T> getAggregateState(SqlFunction.Arguments args, T initialValue){
+      final Long key = args.getContext().getAggregateContext(true);
+      ValueHolder<T> rc = null==key ? null : map.get(key);
+      if( null==rc ){
+        map.put(key, rc = new ValueHolder<>(initialValue));
+      }
+      return rc;
+    }
+
+    /**
+       Should be called from a UDF's xFinal() method and passed that
+       method's first argument. This function removes the value
+       associated with with the arguments' aggregate context from the
+       map and returns it, returning null if no other UDF method has
+       been called to set up such a mapping. The latter condition will
+       be the case if a UDF is used in a statement which has no result
+       rows.
+    */
+    public T takeAggregateState(SqlFunction.Arguments args){
+      final ValueHolder<T> h = map.remove(args.getContext().getAggregateContext(false));
+      return null==h ? null : h.value;
+    }
+  }
+
+  /** Per-invocation state for the UDF. */
+  private final PerContextState<T> map = new PerContextState<>();
+
+  /**
+     To be called from the implementation's xStep() method, as well
+     as the xValue() and xInverse() methods of the {@link WindowFunction}
+     subclass, to fetch the current per-call UDF state. On the
+     first call to this method for any given sqlite3_context
+     argument, the context is set to the given initial value. On all other
+     calls, the 2nd argument is ignored.
+
+     @see SQLFunction.PerContextState#getAggregateState
+  */
+  protected final ValueHolder<T> getAggregateState(SqlFunction.Arguments args, T initialValue){
+    return map.getAggregateState(args, initialValue);
+  }
+
+  /**
+     To be called from the implementation's xFinal() method to fetch
+     the final state of the UDF and remove its mapping.
+
+     see SQLFunction.PerContextState#takeAggregateState
+  */
+  protected final T takeAggregateState(SqlFunction.Arguments args){
+    return map.takeAggregateState(args);
+  }
+
+}
diff --git a/ext/jni/src/org/sqlite/jni/wrapper1/ScalarFunction.java b/ext/jni/src/org/sqlite/jni/wrapper1/ScalarFunction.java
new file mode 100644
index 0000000000000000000000000000000000000000..067a6983eb0e9c9b2560d53e532fcafb7459aced
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/wrapper1/ScalarFunction.java
@@ -0,0 +1,37 @@
+/*
+** 2023-10-16
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the wrapper1 interface for sqlite3.
+*/
+package org.sqlite.jni.wrapper1;
+import org.sqlite.jni.capi.CApi;
+import org.sqlite.jni.annotation.*;
+import org.sqlite.jni.capi.sqlite3_context;
+import org.sqlite.jni.capi.sqlite3_value;
+
+/**
+   The SqlFunction type for scalar SQL functions.
+*/
+public abstract class ScalarFunction implements SqlFunction  {
+  /**
+     As for the xFunc() argument of the C API's
+     sqlite3_create_function(). If this function throws, it is
+     translated into an sqlite3_result_error().
+  */
+  public abstract void xFunc(SqlFunction.Arguments args);
+
+  /**
+     Optionally override to be notified when the UDF is finalized by
+     SQLite. This default implementation does nothing.
+  */
+  public void xDestroy() {}
+
+}
diff --git a/ext/jni/src/org/sqlite/jni/wrapper1/SqlFunction.java b/ext/jni/src/org/sqlite/jni/wrapper1/SqlFunction.java
new file mode 100644
index 0000000000000000000000000000000000000000..dcfc2ebebd7988d09d042d83815e628ca180d6cc
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/wrapper1/SqlFunction.java
@@ -0,0 +1,318 @@
+/*
+** 2023-10-16
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the wrapper1 interface for sqlite3.
+*/
+package org.sqlite.jni.wrapper1;
+import org.sqlite.jni.capi.CApi;
+import org.sqlite.jni.capi.sqlite3_context;
+import org.sqlite.jni.capi.sqlite3_value;
+
+/**
+   Base marker interface for SQLite's three types of User-Defined SQL
+   Functions (UDFs): Scalar, Aggregate, and Window functions.
+*/
+public interface SqlFunction  {
+
+  public static final int DETERMINISTIC = CApi.SQLITE_DETERMINISTIC;
+  public static final int INNOCUOUS = CApi.SQLITE_INNOCUOUS;
+  public static final int DIRECTONLY = CApi.SQLITE_DIRECTONLY;
+  public static final int SUBTYPE = CApi.SQLITE_SUBTYPE;
+  public static final int RESULT_SUBTYPE = CApi.SQLITE_RESULT_SUBTYPE;
+  public static final int UTF8 = CApi.SQLITE_UTF8;
+  public static final int UTF16 = CApi.SQLITE_UTF16;
+
+  /**
+     The Arguments type is an abstraction on top of the lower-level
+     UDF function argument types. It provides _most_ of the functionality
+     of the lower-level interface, insofar as possible without "leaking"
+     those types into this API.
+  */
+  public final static class Arguments implements Iterable<SqlFunction.Arguments.Arg>{
+    private final sqlite3_context cx;
+    private final sqlite3_value args[];
+    public final int length;
+
+    /**
+       Must be passed the context and arguments for the UDF call this
+       object is wrapping. Intended to be used by internal proxy
+       classes which "convert" the lower-level interface into this
+       package's higher-level interface, e.g. ScalarAdapter and
+       AggregateAdapter.
+
+       Passing null for the args is equivalent to passing a length-0
+       array.
+    */
+    Arguments(sqlite3_context cx, sqlite3_value args[]){
+      this.cx = cx;
+      this.args = args==null ? new sqlite3_value[0] : args;
+      this.length = this.args.length;
+    }
+
+    /**
+       Returns the sqlite3_value at the given argument index or throws
+       an IllegalArgumentException exception if ndx is out of range.
+    */
+    private sqlite3_value valueAt(int ndx){
+      if(ndx<0 || ndx>=args.length){
+        throw new IllegalArgumentException(
+          "SQL function argument index "+ndx+" is out of range."
+        );
+      }
+      return args[ndx];
+    }
+
+    //! Returns the underlying sqlite3_context for these arguments.
+    sqlite3_context getContext(){return cx;}
+
+    /**
+       Returns the Sqlite (db) object associated with this UDF call,
+       or null if the UDF is somehow called without such an object or
+       the db has been closed in an untimely manner (e.g. closed by a
+       UDF call).
+    */
+    public Sqlite getDb(){
+      return Sqlite.fromNative( CApi.sqlite3_context_db_handle(cx) );
+    }
+
+    public int getArgCount(){ return args.length; }
+
+    public int getInt(int argNdx){return CApi.sqlite3_value_int(valueAt(argNdx));}
+    public long getInt64(int argNdx){return CApi.sqlite3_value_int64(valueAt(argNdx));}
+    public double getDouble(int argNdx){return CApi.sqlite3_value_double(valueAt(argNdx));}
+    public byte[] getBlob(int argNdx){return CApi.sqlite3_value_blob(valueAt(argNdx));}
+    public byte[] getText(int argNdx){return CApi.sqlite3_value_text(valueAt(argNdx));}
+    public String getText16(int argNdx){return CApi.sqlite3_value_text16(valueAt(argNdx));}
+    public int getBytes(int argNdx){return CApi.sqlite3_value_bytes(valueAt(argNdx));}
+    public int getBytes16(int argNdx){return CApi.sqlite3_value_bytes16(valueAt(argNdx));}
+    public Object getObject(int argNdx){return CApi.sqlite3_value_java_object(valueAt(argNdx));}
+    public <T> T getObject(int argNdx, Class<T> type){
+      return CApi.sqlite3_value_java_object(valueAt(argNdx), type);
+    }
+
+    public int getType(int argNdx){return CApi.sqlite3_value_type(valueAt(argNdx));}
+    public int getSubtype(int argNdx){return CApi.sqlite3_value_subtype(valueAt(argNdx));}
+    public int getNumericType(int argNdx){return CApi.sqlite3_value_numeric_type(valueAt(argNdx));}
+    public int getNoChange(int argNdx){return CApi.sqlite3_value_nochange(valueAt(argNdx));}
+    public boolean getFromBind(int argNdx){return CApi.sqlite3_value_frombind(valueAt(argNdx));}
+    public int getEncoding(int argNdx){return CApi.sqlite3_value_encoding(valueAt(argNdx));}
+
+    public void resultInt(int v){ CApi.sqlite3_result_int(cx, v); }
+    public void resultInt64(long v){ CApi.sqlite3_result_int64(cx, v); }
+    public void resultDouble(double v){ CApi.sqlite3_result_double(cx, v); }
+    public void resultError(String msg){CApi.sqlite3_result_error(cx, msg);}
+    public void resultError(Exception e){CApi.sqlite3_result_error(cx, e);}
+    public void resultErrorTooBig(){CApi.sqlite3_result_error_toobig(cx);}
+    public void resultErrorCode(int rc){CApi.sqlite3_result_error_code(cx, rc);}
+    public void resultObject(Object o){CApi.sqlite3_result_java_object(cx, o);}
+    public void resultNull(){CApi.sqlite3_result_null(cx);}
+    /**
+       Analog to sqlite3_result_value(), using the Value object at the
+       given argument index.
+    */
+    public void resultArg(int argNdx){CApi.sqlite3_result_value(cx, valueAt(argNdx));}
+    public void resultSubtype(int subtype){CApi.sqlite3_result_subtype(cx, subtype);}
+    public void resultZeroBlob(long n){
+      // Throw on error? If n is too big,
+      // sqlite3_result_error_toobig() is automatically called.
+      CApi.sqlite3_result_zeroblob64(cx, n);
+    }
+
+    public void resultBlob(byte[] blob){CApi.sqlite3_result_blob(cx, blob);}
+    public void resultText(byte[] utf8){CApi.sqlite3_result_text(cx, utf8);}
+    public void resultText(String txt){CApi.sqlite3_result_text(cx, txt);}
+    public void resultText16(byte[] utf16){CApi.sqlite3_result_text16(cx, utf16);}
+    public void resultText16(String txt){CApi.sqlite3_result_text16(cx, txt);}
+
+    /**
+       Callbacks should invoke this on OOM errors, instead of throwing
+       OutOfMemoryError, because the latter cannot be propagated
+       through the C API.
+    */
+    public void resultNoMem(){CApi.sqlite3_result_error_nomem(cx);}
+
+    /**
+       Analog to sqlite3_set_auxdata() but throws if argNdx is out of
+       range.
+    */
+    public void setAuxData(int argNdx, Object o){
+      /* From the API docs: https://www.sqlite.org/c3ref/get_auxdata.html
+
+         The value of the N parameter to these interfaces should be
+         non-negative. Future enhancements may make use of negative N
+         values to define new kinds of function caching behavior.
+      */
+      valueAt(argNdx);
+      CApi.sqlite3_set_auxdata(cx, argNdx, o);
+    }
+
+    /**
+       Analog to sqlite3_get_auxdata() but throws if argNdx is out of
+       range.
+    */
+    public Object getAuxData(int argNdx){
+      valueAt(argNdx);
+      return CApi.sqlite3_get_auxdata(cx, argNdx);
+    }
+
+    /**
+       Represents a single SqlFunction argument. Primarily intended
+       for use with the Arguments class's Iterable interface.
+    */
+    public final static class Arg {
+      private final Arguments a;
+      private final int ndx;
+      /* Only for use by the Arguments class. */
+      private Arg(Arguments a, int ndx){
+        this.a = a;
+        this.ndx = ndx;
+      }
+      /** Returns this argument's index in its parent argument list. */
+      public int getIndex(){return ndx;}
+      public int getInt(){return a.getInt(ndx);}
+      public long getInt64(){return a.getInt64(ndx);}
+      public double getDouble(){return a.getDouble(ndx);}
+      public byte[] getBlob(){return a.getBlob(ndx);}
+      public byte[] getText(){return a.getText(ndx);}
+      public String getText16(){return a.getText16(ndx);}
+      public int getBytes(){return a.getBytes(ndx);}
+      public int getBytes16(){return a.getBytes16(ndx);}
+      public Object getObject(){return a.getObject(ndx);}
+      public <T> T getObject(Class<T> type){ return a.getObject(ndx, type); }
+      public int getType(){return a.getType(ndx);}
+      public Object getAuxData(){return a.getAuxData(ndx);}
+      public void setAuxData(Object o){a.setAuxData(ndx, o);}
+    }
+
+    @Override
+    public java.util.Iterator<SqlFunction.Arguments.Arg> iterator(){
+      final Arg[] proxies = new Arg[args.length];
+      for( int i = 0; i < args.length; ++i ){
+        proxies[i] = new Arg(this, i);
+      }
+      return java.util.Arrays.stream(proxies).iterator();
+    }
+
+  }
+
+  /**
+     Internal-use adapter for wrapping this package's ScalarFunction
+     for use with the org.sqlite.jni.capi.ScalarFunction interface.
+  */
+  static final class ScalarAdapter extends org.sqlite.jni.capi.ScalarFunction {
+    private final ScalarFunction impl;
+    ScalarAdapter(ScalarFunction impl){
+      this.impl = impl;
+    }
+    /**
+       Proxies this.impl.xFunc(), adapting the call arguments to that
+       function's signature. If the proxy throws, it's translated to
+       sqlite_result_error() with the exception's message.
+    */
+    public void xFunc(sqlite3_context cx, sqlite3_value[] args){
+      try{
+        impl.xFunc( new SqlFunction.Arguments(cx, args) );
+      }catch(Exception e){
+        CApi.sqlite3_result_error(cx, e);
+      }
+    }
+
+    public void xDestroy(){
+      impl.xDestroy();
+    }
+  }
+
+  /**
+     Internal-use adapter for wrapping this package's AggregateFunction
+     for use with the org.sqlite.jni.capi.AggregateFunction interface.
+  */
+  static /*cannot be final without duplicating the whole body in WindowAdapter*/
+  class AggregateAdapter extends org.sqlite.jni.capi.AggregateFunction {
+    private final AggregateFunction impl;
+    AggregateAdapter(AggregateFunction impl){
+      this.impl = impl;
+    }
+
+    /**
+       Proxies this.impl.xStep(), adapting the call arguments to that
+       function's signature. If the proxied function throws, it is
+       translated to sqlite_result_error() with the exception's
+       message.
+    */
+    public void xStep(sqlite3_context cx, sqlite3_value[] args){
+      try{
+        impl.xStep( new SqlFunction.Arguments(cx, args) );
+      }catch(Exception e){
+        CApi.sqlite3_result_error(cx, e);
+      }
+    }
+
+    /**
+       As for the xFinal() argument of the C API's
+       sqlite3_create_function().  If the proxied function throws, it
+       is translated into a sqlite3_result_error().
+    */
+    public void xFinal(sqlite3_context cx){
+      try{
+        impl.xFinal( new SqlFunction.Arguments(cx, null) );
+      }catch(Exception e){
+        CApi.sqlite3_result_error(cx, e);
+      }
+    }
+
+    public void xDestroy(){
+      impl.xDestroy();
+    }
+  }
+
+  /**
+     Internal-use adapter for wrapping this package's WindowFunction
+     for use with the org.sqlite.jni.capi.WindowFunction interface.
+  */
+  static final class WindowAdapter extends AggregateAdapter {
+    private final WindowFunction impl;
+    WindowAdapter(WindowFunction impl){
+      super(impl);
+      this.impl = impl;
+    }
+
+    /**
+       Proxies this.impl.xInverse(), adapting the call arguments to that
+       function's signature. If the proxied function throws, it is
+       translated to sqlite_result_error() with the exception's
+       message.
+    */
+    public void xInverse(sqlite3_context cx, sqlite3_value[] args){
+      try{
+        impl.xInverse( new SqlFunction.Arguments(cx, args) );
+      }catch(Exception e){
+        CApi.sqlite3_result_error(cx, e);
+      }
+    }
+
+    /**
+       As for the xValue() argument of the C API's sqlite3_create_window_function().
+       If the proxied function throws, it is translated into a sqlite3_result_error().
+    */
+    public void xValue(sqlite3_context cx){
+      try{
+        impl.xValue( new SqlFunction.Arguments(cx, null) );
+      }catch(Exception e){
+        CApi.sqlite3_result_error(cx, e);
+      }
+    }
+
+    public void xDestroy(){
+      impl.xDestroy();
+    }
+  }
+
+}
diff --git a/ext/jni/src/org/sqlite/jni/wrapper1/Sqlite.java b/ext/jni/src/org/sqlite/jni/wrapper1/Sqlite.java
new file mode 100644
index 0000000000000000000000000000000000000000..de131e85421e81bfeed30963300d3d999923a210
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/wrapper1/Sqlite.java
@@ -0,0 +1,1991 @@
+/*
+** 2023-10-09
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the wrapper1 interface for sqlite3.
+*/
+package org.sqlite.jni.wrapper1;
+import java.nio.charset.StandardCharsets;
+import org.sqlite.jni.capi.CApi;
+import org.sqlite.jni.capi.sqlite3;
+import org.sqlite.jni.capi.sqlite3_stmt;
+import org.sqlite.jni.capi.sqlite3_backup;
+import org.sqlite.jni.capi.sqlite3_blob;
+import org.sqlite.jni.capi.OutputPointer;
+import java.nio.ByteBuffer;
+
+/**
+   This class represents a database connection, analog to the C-side
+   sqlite3 class but with added argument validation, exceptions, and
+   similar "smoothing of sharp edges" to make the API safe to use from
+   Java. It also acts as a namespace for other types for which
+   individual instances are tied to a specific database connection.
+*/
+public final class Sqlite implements AutoCloseable  {
+  private sqlite3 db;
+  private static final boolean JNI_SUPPORTS_NIO =
+    CApi.sqlite3_jni_supports_nio();
+
+  // Result codes
+  public static final int OK = CApi.SQLITE_OK;
+  public static final int ERROR = CApi.SQLITE_ERROR;
+  public static final int INTERNAL = CApi.SQLITE_INTERNAL;
+  public static final int PERM = CApi.SQLITE_PERM;
+  public static final int ABORT = CApi.SQLITE_ABORT;
+  public static final int BUSY = CApi.SQLITE_BUSY;
+  public static final int LOCKED = CApi.SQLITE_LOCKED;
+  public static final int NOMEM = CApi.SQLITE_NOMEM;
+  public static final int READONLY = CApi.SQLITE_READONLY;
+  public static final int INTERRUPT = CApi.SQLITE_INTERRUPT;
+  public static final int IOERR = CApi.SQLITE_IOERR;
+  public static final int CORRUPT = CApi.SQLITE_CORRUPT;
+  public static final int NOTFOUND = CApi.SQLITE_NOTFOUND;
+  public static final int FULL = CApi.SQLITE_FULL;
+  public static final int CANTOPEN = CApi.SQLITE_CANTOPEN;
+  public static final int PROTOCOL = CApi.SQLITE_PROTOCOL;
+  public static final int EMPTY = CApi.SQLITE_EMPTY;
+  public static final int SCHEMA = CApi.SQLITE_SCHEMA;
+  public static final int TOOBIG = CApi.SQLITE_TOOBIG;
+  public static final int CONSTRAINT = CApi. SQLITE_CONSTRAINT;
+  public static final int MISMATCH = CApi.SQLITE_MISMATCH;
+  public static final int MISUSE = CApi.SQLITE_MISUSE;
+  public static final int NOLFS = CApi.SQLITE_NOLFS;
+  public static final int AUTH = CApi.SQLITE_AUTH;
+  public static final int FORMAT = CApi.SQLITE_FORMAT;
+  public static final int RANGE = CApi.SQLITE_RANGE;
+  public static final int NOTADB = CApi.SQLITE_NOTADB;
+  public static final int NOTICE = CApi.SQLITE_NOTICE;
+  public static final int WARNING = CApi.SQLITE_WARNING;
+  public static final int ROW = CApi.SQLITE_ROW;
+  public static final int DONE = CApi.SQLITE_DONE;
+  public static final int ERROR_MISSING_COLLSEQ = CApi.SQLITE_ERROR_MISSING_COLLSEQ;
+  public static final int ERROR_RETRY = CApi.SQLITE_ERROR_RETRY;
+  public static final int ERROR_SNAPSHOT = CApi.SQLITE_ERROR_SNAPSHOT;
+  public static final int IOERR_READ = CApi.SQLITE_IOERR_READ;
+  public static final int IOERR_SHORT_READ = CApi.SQLITE_IOERR_SHORT_READ;
+  public static final int IOERR_WRITE = CApi.SQLITE_IOERR_WRITE;
+  public static final int IOERR_FSYNC = CApi.SQLITE_IOERR_FSYNC;
+  public static final int IOERR_DIR_FSYNC = CApi.SQLITE_IOERR_DIR_FSYNC;
+  public static final int IOERR_TRUNCATE = CApi.SQLITE_IOERR_TRUNCATE;
+  public static final int IOERR_FSTAT = CApi.SQLITE_IOERR_FSTAT;
+  public static final int IOERR_UNLOCK = CApi.SQLITE_IOERR_UNLOCK;
+  public static final int IOERR_RDLOCK = CApi.SQLITE_IOERR_RDLOCK;
+  public static final int IOERR_DELETE = CApi.SQLITE_IOERR_DELETE;
+  public static final int IOERR_BLOCKED = CApi.SQLITE_IOERR_BLOCKED;
+  public static final int IOERR_NOMEM = CApi.SQLITE_IOERR_NOMEM;
+  public static final int IOERR_ACCESS = CApi.SQLITE_IOERR_ACCESS;
+  public static final int IOERR_CHECKRESERVEDLOCK = CApi.SQLITE_IOERR_CHECKRESERVEDLOCK;
+  public static final int IOERR_LOCK = CApi.SQLITE_IOERR_LOCK;
+  public static final int IOERR_CLOSE = CApi.SQLITE_IOERR_CLOSE;
+  public static final int IOERR_DIR_CLOSE = CApi.SQLITE_IOERR_DIR_CLOSE;
+  public static final int IOERR_SHMOPEN = CApi.SQLITE_IOERR_SHMOPEN;
+  public static final int IOERR_SHMSIZE = CApi.SQLITE_IOERR_SHMSIZE;
+  public static final int IOERR_SHMLOCK = CApi.SQLITE_IOERR_SHMLOCK;
+  public static final int IOERR_SHMMAP = CApi.SQLITE_IOERR_SHMMAP;
+  public static final int IOERR_SEEK = CApi.SQLITE_IOERR_SEEK;
+  public static final int IOERR_DELETE_NOENT = CApi.SQLITE_IOERR_DELETE_NOENT;
+  public static final int IOERR_MMAP = CApi.SQLITE_IOERR_MMAP;
+  public static final int IOERR_GETTEMPPATH = CApi.SQLITE_IOERR_GETTEMPPATH;
+  public static final int IOERR_CONVPATH = CApi.SQLITE_IOERR_CONVPATH;
+  public static final int IOERR_VNODE = CApi.SQLITE_IOERR_VNODE;
+  public static final int IOERR_AUTH = CApi.SQLITE_IOERR_AUTH;
+  public static final int IOERR_BEGIN_ATOMIC = CApi.SQLITE_IOERR_BEGIN_ATOMIC;
+  public static final int IOERR_COMMIT_ATOMIC = CApi.SQLITE_IOERR_COMMIT_ATOMIC;
+  public static final int IOERR_ROLLBACK_ATOMIC = CApi.SQLITE_IOERR_ROLLBACK_ATOMIC;
+  public static final int IOERR_DATA = CApi.SQLITE_IOERR_DATA;
+  public static final int IOERR_CORRUPTFS = CApi.SQLITE_IOERR_CORRUPTFS;
+  public static final int LOCKED_SHAREDCACHE = CApi.SQLITE_LOCKED_SHAREDCACHE;
+  public static final int LOCKED_VTAB = CApi.SQLITE_LOCKED_VTAB;
+  public static final int BUSY_RECOVERY = CApi.SQLITE_BUSY_RECOVERY;
+  public static final int BUSY_SNAPSHOT = CApi.SQLITE_BUSY_SNAPSHOT;
+  public static final int BUSY_TIMEOUT = CApi.SQLITE_BUSY_TIMEOUT;
+  public static final int CANTOPEN_NOTEMPDIR = CApi.SQLITE_CANTOPEN_NOTEMPDIR;
+  public static final int CANTOPEN_ISDIR = CApi.SQLITE_CANTOPEN_ISDIR;
+  public static final int CANTOPEN_FULLPATH = CApi.SQLITE_CANTOPEN_FULLPATH;
+  public static final int CANTOPEN_CONVPATH = CApi.SQLITE_CANTOPEN_CONVPATH;
+  public static final int CANTOPEN_SYMLINK = CApi.SQLITE_CANTOPEN_SYMLINK;
+  public static final int CORRUPT_VTAB = CApi.SQLITE_CORRUPT_VTAB;
+  public static final int CORRUPT_SEQUENCE = CApi.SQLITE_CORRUPT_SEQUENCE;
+  public static final int CORRUPT_INDEX = CApi.SQLITE_CORRUPT_INDEX;
+  public static final int READONLY_RECOVERY = CApi.SQLITE_READONLY_RECOVERY;
+  public static final int READONLY_CANTLOCK = CApi.SQLITE_READONLY_CANTLOCK;
+  public static final int READONLY_ROLLBACK = CApi.SQLITE_READONLY_ROLLBACK;
+  public static final int READONLY_DBMOVED = CApi.SQLITE_READONLY_DBMOVED;
+  public static final int READONLY_CANTINIT = CApi.SQLITE_READONLY_CANTINIT;
+  public static final int READONLY_DIRECTORY = CApi.SQLITE_READONLY_DIRECTORY;
+  public static final int ABORT_ROLLBACK = CApi.SQLITE_ABORT_ROLLBACK;
+  public static final int CONSTRAINT_CHECK = CApi.SQLITE_CONSTRAINT_CHECK;
+  public static final int CONSTRAINT_COMMITHOOK = CApi.SQLITE_CONSTRAINT_COMMITHOOK;
+  public static final int CONSTRAINT_FOREIGNKEY = CApi.SQLITE_CONSTRAINT_FOREIGNKEY;
+  public static final int CONSTRAINT_FUNCTION = CApi.SQLITE_CONSTRAINT_FUNCTION;
+  public static final int CONSTRAINT_NOTNULL = CApi.SQLITE_CONSTRAINT_NOTNULL;
+  public static final int CONSTRAINT_PRIMARYKEY = CApi.SQLITE_CONSTRAINT_PRIMARYKEY;
+  public static final int CONSTRAINT_TRIGGER = CApi.SQLITE_CONSTRAINT_TRIGGER;
+  public static final int CONSTRAINT_UNIQUE = CApi.SQLITE_CONSTRAINT_UNIQUE;
+  public static final int CONSTRAINT_VTAB = CApi.SQLITE_CONSTRAINT_VTAB;
+  public static final int CONSTRAINT_ROWID = CApi.SQLITE_CONSTRAINT_ROWID;
+  public static final int CONSTRAINT_PINNED = CApi.SQLITE_CONSTRAINT_PINNED;
+  public static final int CONSTRAINT_DATATYPE = CApi.SQLITE_CONSTRAINT_DATATYPE;
+  public static final int NOTICE_RECOVER_WAL = CApi.SQLITE_NOTICE_RECOVER_WAL;
+  public static final int NOTICE_RECOVER_ROLLBACK = CApi.SQLITE_NOTICE_RECOVER_ROLLBACK;
+  public static final int WARNING_AUTOINDEX = CApi.SQLITE_WARNING_AUTOINDEX;
+  public static final int AUTH_USER = CApi.SQLITE_AUTH_USER;
+  public static final int OK_LOAD_PERMANENTLY = CApi.SQLITE_OK_LOAD_PERMANENTLY;
+
+  // sqlite3_open() flags
+  public static final int OPEN_READWRITE = CApi.SQLITE_OPEN_READWRITE;
+  public static final int OPEN_CREATE = CApi.SQLITE_OPEN_CREATE;
+  public static final int OPEN_EXRESCODE = CApi.SQLITE_OPEN_EXRESCODE;
+
+  // transaction state
+  public static final int TXN_NONE = CApi.SQLITE_TXN_NONE;
+  public static final int TXN_READ = CApi.SQLITE_TXN_READ;
+  public static final int TXN_WRITE = CApi.SQLITE_TXN_WRITE;
+
+  // sqlite3_status() ops
+  public static final int STATUS_MEMORY_USED = CApi.SQLITE_STATUS_MEMORY_USED;
+  public static final int STATUS_PAGECACHE_USED = CApi.SQLITE_STATUS_PAGECACHE_USED;
+  public static final int STATUS_PAGECACHE_OVERFLOW = CApi.SQLITE_STATUS_PAGECACHE_OVERFLOW;
+  public static final int STATUS_MALLOC_SIZE = CApi.SQLITE_STATUS_MALLOC_SIZE;
+  public static final int STATUS_PARSER_STACK = CApi.SQLITE_STATUS_PARSER_STACK;
+  public static final int STATUS_PAGECACHE_SIZE = CApi.SQLITE_STATUS_PAGECACHE_SIZE;
+  public static final int STATUS_MALLOC_COUNT = CApi.SQLITE_STATUS_MALLOC_COUNT;
+
+  // sqlite3_db_status() ops
+  public static final int DBSTATUS_LOOKASIDE_USED = CApi.SQLITE_DBSTATUS_LOOKASIDE_USED;
+  public static final int DBSTATUS_CACHE_USED = CApi.SQLITE_DBSTATUS_CACHE_USED;
+  public static final int DBSTATUS_SCHEMA_USED = CApi.SQLITE_DBSTATUS_SCHEMA_USED;
+  public static final int DBSTATUS_STMT_USED = CApi.SQLITE_DBSTATUS_STMT_USED;
+  public static final int DBSTATUS_LOOKASIDE_HIT = CApi.SQLITE_DBSTATUS_LOOKASIDE_HIT;
+  public static final int DBSTATUS_LOOKASIDE_MISS_SIZE = CApi.SQLITE_DBSTATUS_LOOKASIDE_MISS_SIZE;
+  public static final int DBSTATUS_LOOKASIDE_MISS_FULL = CApi.SQLITE_DBSTATUS_LOOKASIDE_MISS_FULL;
+  public static final int DBSTATUS_CACHE_HIT = CApi.SQLITE_DBSTATUS_CACHE_HIT;
+  public static final int DBSTATUS_CACHE_MISS = CApi.SQLITE_DBSTATUS_CACHE_MISS;
+  public static final int DBSTATUS_CACHE_WRITE = CApi.SQLITE_DBSTATUS_CACHE_WRITE;
+  public static final int DBSTATUS_DEFERRED_FKS = CApi.SQLITE_DBSTATUS_DEFERRED_FKS;
+  public static final int DBSTATUS_CACHE_USED_SHARED = CApi.SQLITE_DBSTATUS_CACHE_USED_SHARED;
+  public static final int DBSTATUS_CACHE_SPILL = CApi.SQLITE_DBSTATUS_CACHE_SPILL;
+
+  // Limits
+  public static final int LIMIT_LENGTH = CApi.SQLITE_LIMIT_LENGTH;
+  public static final int LIMIT_SQL_LENGTH = CApi.SQLITE_LIMIT_SQL_LENGTH;
+  public static final int LIMIT_COLUMN = CApi.SQLITE_LIMIT_COLUMN;
+  public static final int LIMIT_EXPR_DEPTH = CApi.SQLITE_LIMIT_EXPR_DEPTH;
+  public static final int LIMIT_COMPOUND_SELECT = CApi.SQLITE_LIMIT_COMPOUND_SELECT;
+  public static final int LIMIT_VDBE_OP = CApi.SQLITE_LIMIT_VDBE_OP;
+  public static final int LIMIT_FUNCTION_ARG = CApi.SQLITE_LIMIT_FUNCTION_ARG;
+  public static final int LIMIT_ATTACHED = CApi.SQLITE_LIMIT_ATTACHED;
+  public static final int LIMIT_LIKE_PATTERN_LENGTH = CApi.SQLITE_LIMIT_LIKE_PATTERN_LENGTH;
+  public static final int LIMIT_VARIABLE_NUMBER = CApi.SQLITE_LIMIT_VARIABLE_NUMBER;
+  public static final int LIMIT_TRIGGER_DEPTH = CApi.SQLITE_LIMIT_TRIGGER_DEPTH;
+  public static final int LIMIT_WORKER_THREADS = CApi.SQLITE_LIMIT_WORKER_THREADS;
+
+  // sqlite3_prepare_v3() flags
+  public static final int PREPARE_PERSISTENT = CApi.SQLITE_PREPARE_PERSISTENT;
+  public static final int PREPARE_NO_VTAB = CApi.SQLITE_PREPARE_NO_VTAB;
+
+  // sqlite3_trace_v2() flags
+  public static final int TRACE_STMT = CApi.SQLITE_TRACE_STMT;
+  public static final int TRACE_PROFILE = CApi.SQLITE_TRACE_PROFILE;
+  public static final int TRACE_ROW = CApi.SQLITE_TRACE_ROW;
+  public static final int TRACE_CLOSE = CApi.SQLITE_TRACE_CLOSE;
+  public static final int TRACE_ALL = TRACE_STMT | TRACE_PROFILE | TRACE_ROW | TRACE_CLOSE;
+
+  // sqlite3_db_config() ops
+  public static final int DBCONFIG_ENABLE_FKEY = CApi.SQLITE_DBCONFIG_ENABLE_FKEY;
+  public static final int DBCONFIG_ENABLE_TRIGGER = CApi.SQLITE_DBCONFIG_ENABLE_TRIGGER;
+  public static final int DBCONFIG_ENABLE_FTS3_TOKENIZER = CApi.SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER;
+  public static final int DBCONFIG_ENABLE_LOAD_EXTENSION = CApi.SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION;
+  public static final int DBCONFIG_NO_CKPT_ON_CLOSE = CApi.SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE;
+  public static final int DBCONFIG_ENABLE_QPSG = CApi.SQLITE_DBCONFIG_ENABLE_QPSG;
+  public static final int DBCONFIG_TRIGGER_EQP = CApi.SQLITE_DBCONFIG_TRIGGER_EQP;
+  public static final int DBCONFIG_RESET_DATABASE = CApi.SQLITE_DBCONFIG_RESET_DATABASE;
+  public static final int DBCONFIG_DEFENSIVE = CApi.SQLITE_DBCONFIG_DEFENSIVE;
+  public static final int DBCONFIG_WRITABLE_SCHEMA = CApi.SQLITE_DBCONFIG_WRITABLE_SCHEMA;
+  public static final int DBCONFIG_LEGACY_ALTER_TABLE = CApi.SQLITE_DBCONFIG_LEGACY_ALTER_TABLE;
+  public static final int DBCONFIG_DQS_DML = CApi.SQLITE_DBCONFIG_DQS_DML;
+  public static final int DBCONFIG_DQS_DDL = CApi.SQLITE_DBCONFIG_DQS_DDL;
+  public static final int DBCONFIG_ENABLE_VIEW = CApi.SQLITE_DBCONFIG_ENABLE_VIEW;
+  public static final int DBCONFIG_LEGACY_FILE_FORMAT = CApi.SQLITE_DBCONFIG_LEGACY_FILE_FORMAT;
+  public static final int DBCONFIG_TRUSTED_SCHEMA = CApi.SQLITE_DBCONFIG_TRUSTED_SCHEMA;
+  public static final int DBCONFIG_STMT_SCANSTATUS = CApi.SQLITE_DBCONFIG_STMT_SCANSTATUS;
+  public static final int DBCONFIG_REVERSE_SCANORDER = CApi.SQLITE_DBCONFIG_REVERSE_SCANORDER;
+
+  // sqlite3_config() ops
+  public static final int CONFIG_SINGLETHREAD = CApi.SQLITE_CONFIG_SINGLETHREAD;
+  public static final int CONFIG_MULTITHREAD = CApi.SQLITE_CONFIG_MULTITHREAD;
+  public static final int CONFIG_SERIALIZED = CApi.SQLITE_CONFIG_SERIALIZED;
+
+  // Encodings
+  public static final int UTF8 = CApi.SQLITE_UTF8;
+  public static final int UTF16 = CApi.SQLITE_UTF16;
+  public static final int UTF16LE = CApi.SQLITE_UTF16LE;
+  public static final int UTF16BE = CApi.SQLITE_UTF16BE;
+  /* We elide the UTF16_ALIGNED from this interface because it
+     is irrelevant for the Java interface. */
+
+  // SQL data type IDs
+  public static final int INTEGER = CApi.SQLITE_INTEGER;
+  public static final int FLOAT = CApi.SQLITE_FLOAT;
+  public static final int TEXT = CApi.SQLITE_TEXT;
+  public static final int BLOB = CApi.SQLITE_BLOB;
+  public static final int NULL = CApi.SQLITE_NULL;
+
+  // Authorizer codes.
+  public static final int DENY = CApi.SQLITE_DENY;
+  public static final int IGNORE = CApi.SQLITE_IGNORE;
+  public static final int CREATE_INDEX = CApi.SQLITE_CREATE_INDEX;
+  public static final int CREATE_TABLE = CApi.SQLITE_CREATE_TABLE;
+  public static final int CREATE_TEMP_INDEX = CApi.SQLITE_CREATE_TEMP_INDEX;
+  public static final int CREATE_TEMP_TABLE = CApi.SQLITE_CREATE_TEMP_TABLE;
+  public static final int CREATE_TEMP_TRIGGER = CApi.SQLITE_CREATE_TEMP_TRIGGER;
+  public static final int CREATE_TEMP_VIEW = CApi.SQLITE_CREATE_TEMP_VIEW;
+  public static final int CREATE_TRIGGER = CApi.SQLITE_CREATE_TRIGGER;
+  public static final int CREATE_VIEW = CApi.SQLITE_CREATE_VIEW;
+  public static final int DELETE = CApi.SQLITE_DELETE;
+  public static final int DROP_INDEX = CApi.SQLITE_DROP_INDEX;
+  public static final int DROP_TABLE = CApi.SQLITE_DROP_TABLE;
+  public static final int DROP_TEMP_INDEX = CApi.SQLITE_DROP_TEMP_INDEX;
+  public static final int DROP_TEMP_TABLE = CApi.SQLITE_DROP_TEMP_TABLE;
+  public static final int DROP_TEMP_TRIGGER = CApi.SQLITE_DROP_TEMP_TRIGGER;
+  public static final int DROP_TEMP_VIEW = CApi.SQLITE_DROP_TEMP_VIEW;
+  public static final int DROP_TRIGGER = CApi.SQLITE_DROP_TRIGGER;
+  public static final int DROP_VIEW = CApi.SQLITE_DROP_VIEW;
+  public static final int INSERT = CApi.SQLITE_INSERT;
+  public static final int PRAGMA = CApi.SQLITE_PRAGMA;
+  public static final int READ = CApi.SQLITE_READ;
+  public static final int SELECT = CApi.SQLITE_SELECT;
+  public static final int TRANSACTION = CApi.SQLITE_TRANSACTION;
+  public static final int UPDATE = CApi.SQLITE_UPDATE;
+  public static final int ATTACH = CApi.SQLITE_ATTACH;
+  public static final int DETACH = CApi.SQLITE_DETACH;
+  public static final int ALTER_TABLE = CApi.SQLITE_ALTER_TABLE;
+  public static final int REINDEX = CApi.SQLITE_REINDEX;
+  public static final int ANALYZE = CApi.SQLITE_ANALYZE;
+  public static final int CREATE_VTABLE = CApi.SQLITE_CREATE_VTABLE;
+  public static final int DROP_VTABLE = CApi.SQLITE_DROP_VTABLE;
+  public static final int FUNCTION = CApi.SQLITE_FUNCTION;
+  public static final int SAVEPOINT = CApi.SQLITE_SAVEPOINT;
+  public static final int RECURSIVE = CApi.SQLITE_RECURSIVE;
+
+  //! Used only by the open() factory functions.
+  private Sqlite(sqlite3 db){
+    this.db = db;
+  }
+
+  /** Maps org.sqlite.jni.capi.sqlite3 to Sqlite instances. */
+  private static final java.util.Map<org.sqlite.jni.capi.sqlite3, Sqlite> nativeToWrapper
+    = new java.util.HashMap<>();
+
+
+  /**
+     When any given thread is done using the SQLite library, calling
+     this will free up any native-side resources which may be
+     associated specifically with that thread. This is not strictly
+     necessary, in particular in applications which only use SQLite
+     from a single thread, but may help free some otherwise errant
+     resources.
+
+     Calling into SQLite from a given thread after this has been
+     called in that thread is harmless. The library will simply start
+     to re-cache certain state for that thread.
+
+     Contrariwise, failing to call this will effectively leak a small
+     amount of cached state for the thread, which may add up to
+     significant amounts if the application uses SQLite from many
+     threads.
+
+     This must never be called while actively using SQLite from this
+     thread, e.g. from within a query loop or a callback which is
+     operating on behalf of the library.
+  */
+  static void uncacheThread(){
+    CApi.sqlite3_java_uncache_thread();
+  }
+
+  /**
+     Returns the Sqlite object associated with the given sqlite3
+     object, or null if there is no such mapping.
+  */
+  static Sqlite fromNative(sqlite3 low){
+    synchronized(nativeToWrapper){
+      return nativeToWrapper.get(low);
+    }
+  }
+
+  /**
+     Returns a newly-opened db connection or throws SqliteException if
+     opening fails. All arguments are as documented for
+     sqlite3_open_v2().
+
+     Design question: do we want static factory functions or should
+     this be reformulated as a constructor?
+  */
+  public static Sqlite open(String filename, int flags, String vfsName){
+    final OutputPointer.sqlite3 out = new OutputPointer.sqlite3();
+    final int rc = CApi.sqlite3_open_v2(filename, out, flags, vfsName);
+    final sqlite3 n = out.take();
+    if( 0!=rc ){
+      if( null==n ) throw new SqliteException(rc);
+      final SqliteException ex = new SqliteException(n);
+      n.close();
+      throw ex;
+    }
+    final Sqlite rv = new Sqlite(n);
+    synchronized(nativeToWrapper){
+      nativeToWrapper.put(n, rv);
+    }
+    runAutoExtensions(rv);
+    return rv;
+  }
+
+  public static Sqlite open(String filename, int flags){
+    return open(filename, flags, null);
+  }
+
+  public static Sqlite open(String filename){
+    return open(filename, OPEN_READWRITE|OPEN_CREATE, null);
+  }
+
+  public static String libVersion(){
+    return CApi.sqlite3_libversion();
+  }
+
+  public static int libVersionNumber(){
+    return CApi.sqlite3_libversion_number();
+  }
+
+  public static String libSourceId(){
+    return CApi.sqlite3_sourceid();
+  }
+
+  /**
+     Returns the value of the native library's build-time value of the
+     SQLITE_THREADSAFE build option.
+  */
+  public static int libThreadsafe(){
+    return CApi.sqlite3_threadsafe();
+  }
+
+  /**
+     Analog to sqlite3_compileoption_get().
+  */
+  public static String compileOptionGet(int n){
+    return CApi.sqlite3_compileoption_get(n);
+  }
+
+  /**
+     Analog to sqlite3_compileoption_used().
+  */
+  public static boolean compileOptionUsed(String optName){
+    return CApi.sqlite3_compileoption_used(optName);
+  }
+
+  private static boolean hasNormalizeSql =
+    compileOptionUsed("ENABLE_NORMALIZE");
+
+  private static boolean hasSqlLog =
+    compileOptionUsed("ENABLE_SQLLOG");
+
+  /**
+     Throws UnsupportedOperationException if check is false.
+     flag is expected to be the name of an SQLITE_ENABLE_...
+     build flag.
+  */
+  private static void checkSupported(boolean check, String flag){
+    if( !check ){
+      throw new UnsupportedOperationException(
+        "Library was built without "+flag
+      );
+    }
+  }
+
+  /**
+     Analog to sqlite3_complete().
+  */
+  public static boolean isCompleteStatement(String sql){
+    switch(CApi.sqlite3_complete(sql)){
+      case 0: return false;
+      case CApi.SQLITE_MISUSE:
+        throw new IllegalArgumentException("Input may not be null.");
+      case CApi.SQLITE_NOMEM:
+        throw new OutOfMemoryError();
+      default:
+        return true;
+    }
+  }
+
+  public static int keywordCount(){
+    return CApi.sqlite3_keyword_count();
+  }
+
+  public static boolean keywordCheck(String word){
+    return CApi.sqlite3_keyword_check(word);
+  }
+
+  public static String keywordName(int index){
+    return CApi.sqlite3_keyword_name(index);
+  }
+
+  public static boolean strglob(String glob, String txt){
+    return 0==CApi.sqlite3_strglob(glob, txt);
+  }
+
+  public static boolean strlike(String glob, String txt, char escChar){
+    return 0==CApi.sqlite3_strlike(glob, txt, escChar);
+  }
+
+  /**
+     Output object for use with status() and libStatus().
+  */
+  public static final class Status {
+    /** The current value for the requested status() or libStatus() metric. */
+    long current;
+    /** The peak value for the requested status() or libStatus() metric. */
+    long peak;
+  };
+
+  /**
+     As per sqlite3_status64(), but returns its current and high-water
+     results as a Status object. Throws if the first argument is
+     not one of the STATUS_... constants.
+  */
+  public static Status libStatus(int op, boolean resetStats){
+    org.sqlite.jni.capi.OutputPointer.Int64 pCurrent =
+      new org.sqlite.jni.capi.OutputPointer.Int64();
+    org.sqlite.jni.capi.OutputPointer.Int64 pHighwater =
+      new org.sqlite.jni.capi.OutputPointer.Int64();
+    checkRcStatic( CApi.sqlite3_status64(op, pCurrent, pHighwater, resetStats) );
+    final Status s = new Status();
+    s.current = pCurrent.value;
+    s.peak = pHighwater.value;
+    return s;
+  }
+
+  /**
+     As per sqlite3_db_status(), but returns its current and
+     high-water results as a Status object. Throws if the first
+     argument is not one of the DBSTATUS_... constants or on any other
+     misuse.
+  */
+  public Status status(int op, boolean resetStats){
+    org.sqlite.jni.capi.OutputPointer.Int32 pCurrent =
+      new org.sqlite.jni.capi.OutputPointer.Int32();
+    org.sqlite.jni.capi.OutputPointer.Int32 pHighwater =
+      new org.sqlite.jni.capi.OutputPointer.Int32();
+    checkRc( CApi.sqlite3_db_status(thisDb(), op, pCurrent, pHighwater, resetStats) );
+    final Status s = new Status();
+    s.current = pCurrent.value;
+    s.peak = pHighwater.value;
+    return s;
+  }
+
+  @Override public void close(){
+    if(null!=this.db){
+      synchronized(nativeToWrapper){
+        nativeToWrapper.remove(this.db);
+      }
+      this.db.close();
+      this.db = null;
+    }
+  }
+
+  /**
+     Returns this object's underlying native db handle, or null if
+     this instance has been closed. This is very specifically not
+     public.
+  */
+  sqlite3 nativeHandle(){ return this.db; }
+
+  private sqlite3 thisDb(){
+    if( null==db || 0==db.getNativePointer() ){
+      throw new IllegalArgumentException("This database instance is closed.");
+    }
+    return this.db;
+  }
+
+  // private byte[] stringToUtf8(String s){
+  //   return s==null ? null : s.getBytes(StandardCharsets.UTF_8);
+  // }
+
+  /**
+     If rc!=0, throws an SqliteException. If this db is currently
+     opened and has non-0 sqlite3_errcode(), the error state is
+     extracted from it, else only the string form of rc is used. It is
+     the caller's responsibility to filter out non-error codes such as
+     SQLITE_ROW and SQLITE_DONE before calling this.
+
+     As a special case, if rc is SQLITE_NOMEM, an OutOfMemoryError is
+     thrown.
+  */
+  private void checkRc(int rc){
+    if( 0!=rc ){
+      if( CApi.SQLITE_NOMEM==rc ){
+        throw new OutOfMemoryError();
+      }else if( null==db || 0==CApi.sqlite3_errcode(db) ){
+        throw new SqliteException(rc);
+      }else{
+        throw new SqliteException(db);
+      }
+    }
+  }
+
+  /**
+     Like checkRc() but behaves as if that function were
+     called with a null db object.
+  */
+  private static void checkRcStatic(int rc){
+    if( 0!=rc ){
+      if( CApi.SQLITE_NOMEM==rc ){
+        throw new OutOfMemoryError();
+      }else{
+        throw new SqliteException(rc);
+      }
+    }
+  }
+
+  /**
+     Toggles the use of extended result codes on or off. By default
+     they are turned off, but they can be enabled by default by
+     including the OPEN_EXRESCODE flag when opening a database.
+
+     Because this API reports db-side errors using exceptions,
+     enabling this may change the values returned by
+     SqliteException.errcode().
+  */
+  public void useExtendedResultCodes(boolean on){
+    checkRc( CApi.sqlite3_extended_result_codes(thisDb(), on) );
+  }
+
+  /**
+     Analog to sqlite3_prepare_v3(), this prepares the first SQL
+     statement from the given input string and returns it as a
+     Stmt. It throws an SqliteException if preparation fails or an
+     IllegalArgumentException if the input is empty (e.g. contains
+     only comments or whitespace).
+
+     The first argument must be SQL input in UTF-8 encoding.
+
+     prepFlags must be 0 or a bitmask of the PREPARE_... constants.
+
+     For processing multiple statements from a single input, use
+     prepareMulti().
+
+     Design note: though the C-level API succeeds with a null
+     statement object for empty inputs, that approach is cumbersome to
+     use in higher-level APIs because every prepared statement has to
+     be checked for null before using it.
+  */
+  public Stmt prepare(byte utf8Sql[], int prepFlags){
+    final OutputPointer.sqlite3_stmt out = new OutputPointer.sqlite3_stmt();
+    final int rc = CApi.sqlite3_prepare_v3(thisDb(), utf8Sql, prepFlags, out);
+    checkRc(rc);
+    final sqlite3_stmt q = out.take();
+    if( null==q ){
+      /* The C-level API treats input which is devoid of SQL
+         statements (e.g. all comments or an empty string) as success
+         but returns a NULL sqlite3_stmt object. In higher-level APIs,
+         wrapping a "successful NULL" object that way is tedious to
+         use because it forces clients and/or wrapper-level code to
+         check for that unusual case. In practice, higher-level
+         bindings are generally better-served by treating empty SQL
+         input as an error. */
+      throw new IllegalArgumentException("Input contains no SQL statements.");
+    }
+    return new Stmt(this, q);
+  }
+
+  /**
+     Equivalent to prepare(X, prepFlags), where X is
+     sql.getBytes(StandardCharsets.UTF_8).
+  */
+  public Stmt prepare(String sql, int prepFlags){
+    return prepare( sql.getBytes(StandardCharsets.UTF_8), prepFlags );
+  }
+
+  /**
+     Equivalent to prepare(sql, 0).
+  */
+  public Stmt prepare(String sql){
+    return prepare(sql, 0);
+  }
+
+
+  /**
+     Callback type for use with prepareMulti().
+  */
+  public interface PrepareMulti {
+    /**
+       Gets passed a Stmt which it may handle in arbitrary ways.
+       Ownership of st is passed to this function. It must throw on
+       error.
+    */
+    void call(Sqlite.Stmt st);
+  }
+
+  /**
+     A PrepareMulti implementation which calls another PrepareMulti
+     object and then finalizes its statement.
+  */
+  public static class PrepareMultiFinalize implements PrepareMulti {
+    private final PrepareMulti pm;
+    /**
+       Proxies the given PrepareMulti via this object's call() method.
+    */
+    public PrepareMultiFinalize(PrepareMulti proxy){
+      this.pm = proxy;
+    }
+    /**
+       Passes st to the call() method of the object this one proxies,
+       then finalizes st, propagating any exceptions from call() after
+       finalizing st.
+    */
+    @Override public void call(Stmt st){
+      try{ pm.call(st); }
+      finally{ st.finalizeStmt(); }
+    }
+  }
+
+  /**
+     Equivalent to prepareMulti(sql,0,visitor).
+  */
+  public void prepareMulti(String sql, PrepareMulti visitor){
+    prepareMulti( sql, 0, visitor );
+  }
+
+  /**
+     Equivallent to prepareMulti(X,prepFlags,visitor), where X is
+     sql.getBytes(StandardCharsets.UTF_8).
+  */
+  public void prepareMulti(String sql, int prepFlags, PrepareMulti visitor){
+    prepareMulti(sql.getBytes(StandardCharsets.UTF_8), prepFlags, visitor);
+  }
+
+  /**
+     A variant of prepare() which can handle multiple SQL statements
+     in a single input string. For each statement in the given string,
+     the statement is passed to visitor.call() a single time, passing
+     ownership of the statement to that function. This function does
+     not step() or close() statements - those operations are left to
+     caller or the visitor function.
+
+     Unlike prepare(), this function does not fail if the input
+     contains only whitespace or SQL comments. In that case it is up
+     to the caller to arrange for that to be an error (if desired).
+
+     PrepareMultiFinalize offers a proxy which finalizes each
+     statement after it is passed to another client-defined visitor.
+
+     Be aware that certain legal SQL constructs may fail in the
+     preparation phase, before the corresponding statement can be
+     stepped. Most notably, authorizer checks which disallow access to
+     something in a statement behave that way.
+  */
+  public void prepareMulti(byte sqlUtf8[], int prepFlags, PrepareMulti visitor){
+    int pos = 0, n = 1;
+    byte[] sqlChunk = sqlUtf8;
+    final org.sqlite.jni.capi.OutputPointer.sqlite3_stmt outStmt =
+      new org.sqlite.jni.capi.OutputPointer.sqlite3_stmt();
+    final org.sqlite.jni.capi.OutputPointer.Int32 oTail =
+      new org.sqlite.jni.capi.OutputPointer.Int32();
+    while( pos < sqlChunk.length ){
+      sqlite3_stmt stmt = null;
+      if( pos>0 ){
+        sqlChunk = java.util.Arrays.copyOfRange(sqlChunk, pos, sqlChunk.length);
+      }
+      if( 0==sqlChunk.length ) break;
+      checkRc(
+        CApi.sqlite3_prepare_v3(db, sqlChunk, prepFlags, outStmt, oTail)
+      );
+      pos = oTail.value;
+      stmt = outStmt.take();
+      if( null==stmt ){
+        /* empty statement, e.g. only comments or whitespace, was parsed. */
+        continue;
+      }
+      visitor.call(new Stmt(this, stmt));
+    }
+  }
+
+  public void createFunction(String name, int nArg, int eTextRep, ScalarFunction f){
+    int rc = CApi.sqlite3_create_function(thisDb(), name, nArg, eTextRep,
+                                           new SqlFunction.ScalarAdapter(f));
+    if( 0!=rc ) throw new SqliteException(db);
+  }
+
+  public void createFunction(String name, int nArg, ScalarFunction f){
+    this.createFunction(name, nArg, CApi.SQLITE_UTF8, f);
+  }
+
+  public void createFunction(String name, int nArg, int eTextRep, AggregateFunction f){
+    int rc = CApi.sqlite3_create_function(thisDb(), name, nArg, eTextRep,
+                                           new SqlFunction.AggregateAdapter(f));
+    if( 0!=rc ) throw new SqliteException(db);
+  }
+
+  public void createFunction(String name, int nArg, AggregateFunction f){
+    this.createFunction(name, nArg, CApi.SQLITE_UTF8, f);
+  }
+
+  public void createFunction(String name, int nArg, int eTextRep, WindowFunction f){
+    int rc = CApi.sqlite3_create_function(thisDb(), name, nArg, eTextRep,
+                                          new SqlFunction.WindowAdapter(f));
+    if( 0!=rc ) throw new SqliteException(db);
+  }
+
+  public void createFunction(String name, int nArg, WindowFunction f){
+    this.createFunction(name, nArg, CApi.SQLITE_UTF8, f);
+  }
+
+  public long changes(){
+    return CApi.sqlite3_changes64(thisDb());
+  }
+
+  public long totalChanges(){
+    return CApi.sqlite3_total_changes64(thisDb());
+  }
+
+  public long lastInsertRowId(){
+    return CApi.sqlite3_last_insert_rowid(thisDb());
+  }
+
+  public void setLastInsertRowId(long rowId){
+    CApi.sqlite3_set_last_insert_rowid(thisDb(), rowId);
+  }
+
+  public void interrupt(){
+    CApi.sqlite3_interrupt(thisDb());
+  }
+
+  public boolean isInterrupted(){
+    return CApi.sqlite3_is_interrupted(thisDb());
+  }
+
+  public boolean isAutoCommit(){
+    return CApi.sqlite3_get_autocommit(thisDb());
+  }
+
+  /**
+     Analog to sqlite3_txn_state(). Returns one of TXN_NONE, TXN_READ,
+     or TXN_WRITE to denote this database's current transaction state
+     for the given schema name (or the most restrictive state of any
+     schema if zSchema is null).
+  */
+  public int transactionState(String zSchema){
+    return CApi.sqlite3_txn_state(thisDb(), zSchema);
+  }
+
+  /**
+     Analog to sqlite3_db_name(). Returns null if passed an unknown
+     index.
+  */
+  public String dbName(int dbNdx){
+    return CApi.sqlite3_db_name(thisDb(), dbNdx);
+  }
+
+  /**
+     Analog to sqlite3_db_filename(). Returns null if passed an
+     unknown db name.
+  */
+  public String dbFileName(String dbName){
+    return CApi.sqlite3_db_filename(thisDb(), dbName);
+  }
+
+  /**
+     Analog to sqlite3_db_config() for the call forms which take one
+     of the boolean-type db configuration flags (namely the
+     DBCONFIG_... constants defined in this class). On success it
+     returns the result of that underlying call. Throws on error.
+  */
+  public boolean dbConfig(int op, boolean on){
+    org.sqlite.jni.capi.OutputPointer.Int32 pOut =
+      new org.sqlite.jni.capi.OutputPointer.Int32();
+    checkRc( CApi.sqlite3_db_config(thisDb(), op, on ? 1 : 0, pOut) );
+    return pOut.get()!=0;
+  }
+
+  /**
+     Analog to the variant of sqlite3_db_config() for configuring the
+     SQLITE_DBCONFIG_MAINDBNAME option. Throws on error.
+  */
+  public void setMainDbName(String name){
+    checkRc(
+      CApi.sqlite3_db_config(thisDb(), CApi.SQLITE_DBCONFIG_MAINDBNAME,
+                             name)
+    );
+  }
+
+  /**
+     Analog to sqlite3_db_readonly() but throws an SqliteException
+     with result code SQLITE_NOTFOUND if given an unknown database
+     name.
+  */
+  public boolean readOnly(String dbName){
+    final int rc = CApi.sqlite3_db_readonly(thisDb(), dbName);
+    if( 0==rc ) return false;
+    else if( rc>0 ) return true;
+    throw new SqliteException(CApi.SQLITE_NOTFOUND);
+  }
+
+  /**
+     Analog to sqlite3_db_release_memory().
+  */
+  public void releaseMemory(){
+    CApi.sqlite3_db_release_memory(thisDb());
+  }
+
+  /**
+     Analog to sqlite3_release_memory().
+  */
+  public static int libReleaseMemory(int n){
+    return CApi.sqlite3_release_memory(n);
+  }
+
+  /**
+     Analog to sqlite3_limit(). limitId must be one of the
+     LIMIT_... constants.
+
+     Returns the old limit for the given option. If newLimit is
+     negative, it returns the old limit without modifying the limit.
+
+     If sqlite3_limit() returns a negative value, this function throws
+     an SqliteException with the SQLITE_RANGE result code but no
+     further error info (because that case does not qualify as a
+     db-level error). Such errors may indicate an invalid argument
+     value or an invalid range for newLimit (the underlying function
+     does not differentiate between those).
+  */
+  public int limit(int limitId, int newLimit){
+    final int rc = CApi.sqlite3_limit(thisDb(), limitId, newLimit);
+    if( rc<0 ){
+      throw new SqliteException(CApi.SQLITE_RANGE);
+    }
+    return rc;
+  }
+
+  /**
+     Analog to sqlite3_errstr().
+  */
+  static String errstr(int resultCode){
+    return CApi.sqlite3_errstr(resultCode);
+  }
+
+  /**
+     A wrapper object for use with tableColumnMetadata().  They are
+     created and populated only via that interface.
+  */
+  public final class TableColumnMetadata {
+    Boolean pNotNull = null;
+    Boolean pPrimaryKey = null;
+    Boolean pAutoinc = null;
+    String pzCollSeq = null;
+    String pzDataType = null;
+
+    private TableColumnMetadata(){}
+
+    public String getDataType(){ return pzDataType; }
+    public String getCollation(){ return pzCollSeq; }
+    public boolean isNotNull(){ return pNotNull; }
+    public boolean isPrimaryKey(){ return pPrimaryKey; }
+    public boolean isAutoincrement(){ return pAutoinc; }
+  }
+
+  /**
+     Returns data about a database, table, and (optionally) column
+     (which may be null), as per sqlite3_table_column_metadata().
+     Throws if passed invalid arguments, else returns the result as a
+     new TableColumnMetadata object.
+  */
+  TableColumnMetadata tableColumnMetadata(
+    String zDbName, String zTableName, String zColumnName
+  ){
+    org.sqlite.jni.capi.OutputPointer.String pzDataType
+      = new org.sqlite.jni.capi.OutputPointer.String();
+    org.sqlite.jni.capi.OutputPointer.String pzCollSeq
+      = new org.sqlite.jni.capi.OutputPointer.String();
+    org.sqlite.jni.capi.OutputPointer.Bool pNotNull
+      = new org.sqlite.jni.capi.OutputPointer.Bool();
+    org.sqlite.jni.capi.OutputPointer.Bool pPrimaryKey
+      = new org.sqlite.jni.capi.OutputPointer.Bool();
+    org.sqlite.jni.capi.OutputPointer.Bool pAutoinc
+      = new org.sqlite.jni.capi.OutputPointer.Bool();
+    final int rc = CApi.sqlite3_table_column_metadata(
+      thisDb(), zDbName, zTableName, zColumnName,
+      pzDataType, pzCollSeq, pNotNull, pPrimaryKey, pAutoinc
+    );
+    checkRc(rc);
+    TableColumnMetadata rv = new TableColumnMetadata();
+    rv.pzDataType = pzDataType.value;
+    rv.pzCollSeq = pzCollSeq.value;
+    rv.pNotNull = pNotNull.value;
+    rv.pPrimaryKey = pPrimaryKey.value;
+    rv.pAutoinc = pAutoinc.value;
+    return rv;
+  }
+
+  public interface TraceCallback {
+    /**
+       Called by sqlite3 for various tracing operations, as per
+       sqlite3_trace_v2(). Note that this interface elides the 2nd
+       argument to the native trace callback, as that role is better
+       filled by instance-local state.
+
+       <p>These callbacks may throw, in which case their exceptions are
+       converted to C-level error information.
+
+       <p>The 2nd argument to this function, if non-null, will be a an
+       Sqlite or Sqlite.Stmt object, depending on the first argument
+       (see below).
+
+       <p>The final argument to this function is the "X" argument
+       documented for sqlite3_trace() and sqlite3_trace_v2(). Its type
+       depends on value of the first argument:
+
+       <p>- SQLITE_TRACE_STMT: pNative is a Sqlite.Stmt. pX is a String
+       containing the prepared SQL.
+
+       <p>- SQLITE_TRACE_PROFILE: pNative is a sqlite3_stmt. pX is a Long
+       holding an approximate number of nanoseconds the statement took
+       to run.
+
+       <p>- SQLITE_TRACE_ROW: pNative is a sqlite3_stmt. pX is null.
+
+       <p>- SQLITE_TRACE_CLOSE: pNative is a sqlite3. pX is null.
+    */
+    void call(int traceFlag, Object pNative, Object pX);
+  }
+
+  /**
+     Analog to sqlite3_trace_v2(). traceMask must be a mask of the
+     TRACE_...  constants. Pass a null callback to remove tracing.
+
+     Throws on error.
+  */
+  public void trace(int traceMask, TraceCallback callback){
+    final Sqlite self = this;
+    final org.sqlite.jni.capi.TraceV2Callback tc =
+      (null==callback) ? null : new org.sqlite.jni.capi.TraceV2Callback(){
+          @SuppressWarnings("unchecked")
+          @Override public int call(int flag, Object pNative, Object pX){
+            switch(flag){
+              case TRACE_ROW:
+              case TRACE_PROFILE:
+              case TRACE_STMT:
+                callback.call(flag, Sqlite.Stmt.fromNative((sqlite3_stmt)pNative), pX);
+                break;
+              case TRACE_CLOSE:
+                callback.call(flag, self, pX);
+                break;
+            }
+            return 0;
+          }
+        };
+    checkRc( CApi.sqlite3_trace_v2(thisDb(), traceMask, tc) );
+  };
+
+  /**
+     Corresponds to the sqlite3_stmt class. Use Sqlite.prepare() to
+     create new instances.
+  */
+  public static final class Stmt implements AutoCloseable {
+    private Sqlite _db = null;
+    private sqlite3_stmt stmt = null;
+
+    /** Only called by the prepare() factory functions. */
+    Stmt(Sqlite db, sqlite3_stmt stmt){
+      this._db = db;
+      this.stmt = stmt;
+      synchronized(nativeToWrapper){
+        nativeToWrapper.put(this.stmt, this);
+      }
+    }
+
+    sqlite3_stmt nativeHandle(){
+      return stmt;
+    }
+
+    /** Maps org.sqlite.jni.capi.sqlite3_stmt to Stmt instances. */
+    private static final java.util.Map<org.sqlite.jni.capi.sqlite3_stmt, Stmt> nativeToWrapper
+      = new java.util.HashMap<>();
+
+    /**
+       Returns the Stmt object associated with the given sqlite3_stmt
+       object, or null if there is no such mapping.
+    */
+    static Stmt fromNative(sqlite3_stmt low){
+      synchronized(nativeToWrapper){
+        return nativeToWrapper.get(low);
+      }
+    }
+
+    /**
+       If this statement is still opened, its low-level handle is
+       returned, else an IllegalArgumentException is thrown.
+    */
+    private sqlite3_stmt thisStmt(){
+      if( null==stmt || 0==stmt.getNativePointer() ){
+        throw new IllegalArgumentException("This Stmt has been finalized.");
+      }
+      return stmt;
+    }
+
+    /** Throws if n is out of range of this statement's result column
+        count. Intended to be used by the columnXyz() methods. */
+    private sqlite3_stmt checkColIndex(int n){
+      if(n<0 || n>=columnCount()){
+        throw new IllegalArgumentException("Column index "+n+" is out of range.");
+      }
+      return thisStmt();
+    }
+
+    /**
+       Corresponds to sqlite3_finalize(), but we cannot override the
+       name finalize() here because this one requires a different
+       signature. It does not throw on error here because "destructors
+       do not throw." If it returns non-0, the object is still
+       finalized, but the result code is an indication that something
+       went wrong in a prior call into the statement's API, as
+       documented for sqlite3_finalize().
+    */
+    public int finalizeStmt(){
+      int rc = 0;
+      if( null!=stmt ){
+        synchronized(nativeToWrapper){
+          nativeToWrapper.remove(this.stmt);
+        }
+        CApi.sqlite3_finalize(stmt);
+        stmt = null;
+        _db = null;
+      }
+      return rc;
+    }
+
+    @Override public void close(){
+      finalizeStmt();
+    }
+
+    /**
+       Throws if rc is any value other than 0, SQLITE_ROW, or
+       SQLITE_DONE, else returns rc. Error state for the exception is
+       extracted from this statement object (if it's opened) or the
+       string form of rc.
+    */
+    private int checkRc(int rc){
+      switch(rc){
+        case 0:
+        case CApi.SQLITE_ROW:
+        case CApi.SQLITE_DONE: return rc;
+        default:
+          if( null==stmt ) throw new SqliteException(rc);
+          else throw new SqliteException(this);
+      }
+    }
+
+    /**
+       Works like sqlite3_step() but returns true for SQLITE_ROW,
+       false for SQLITE_DONE, and throws SqliteException for any other
+       result.
+    */
+    public boolean step(){
+      switch(checkRc(CApi.sqlite3_step(thisStmt()))){
+        case CApi.SQLITE_ROW: return true;
+        case CApi.SQLITE_DONE: return false;
+        default:
+          throw new IllegalStateException(
+            "This \"cannot happen\": all possible result codes were checked already."
+          );
+      }
+    }
+
+    /**
+       Works like sqlite3_step(), returning the same result codes as
+       that function unless throwOnError is true, in which case it
+       will throw an SqliteException for any result codes other than
+       Sqlite.ROW or Sqlite.DONE.
+
+       The utility of this overload over the no-argument one is the
+       ability to handle BUSY and LOCKED errors more easily.
+    */
+    public int step(boolean throwOnError){
+      final int rc = (null==stmt)
+              ? Sqlite.MISUSE
+              : CApi.sqlite3_step(stmt);
+      return throwOnError ? checkRc(rc) : rc;
+    }
+
+    /**
+       Returns the Sqlite which prepared this statement, or null if
+       this statement has been finalized.
+    */
+    public Sqlite getDb(){ return this._db; }
+
+    /**
+       Works like sqlite3_reset() but throws on error.
+    */
+    public void reset(){
+      checkRc(CApi.sqlite3_reset(thisStmt()));
+    }
+
+    public boolean isBusy(){
+      return CApi.sqlite3_stmt_busy(thisStmt());
+    }
+
+    public boolean isReadOnly(){
+      return CApi.sqlite3_stmt_readonly(thisStmt());
+    }
+
+    public String sql(){
+      return CApi.sqlite3_sql(thisStmt());
+    }
+
+    public String expandedSql(){
+      return CApi.sqlite3_expanded_sql(thisStmt());
+    }
+
+    /**
+       Analog to sqlite3_stmt_explain() but throws if op is invalid.
+    */
+    public void explain(int op){
+      checkRc(CApi.sqlite3_stmt_explain(thisStmt(), op));
+    }
+
+    /**
+       Analog to sqlite3_stmt_isexplain().
+    */
+    public int isExplain(){
+      return CApi.sqlite3_stmt_isexplain(thisStmt());
+    }
+
+    /**
+       Analog to sqlite3_normalized_sql(), but throws
+       UnsupportedOperationException if the library was built without
+       the SQLITE_ENABLE_NORMALIZE flag.
+    */
+    public String normalizedSql(){
+      Sqlite.checkSupported(hasNormalizeSql, "SQLITE_ENABLE_NORMALIZE");
+      return CApi.sqlite3_normalized_sql(thisStmt());
+    }
+
+    public void clearBindings(){
+      CApi.sqlite3_clear_bindings( thisStmt() );
+    }
+    public void bindInt(int ndx, int val){
+      checkRc(CApi.sqlite3_bind_int(thisStmt(), ndx, val));
+    }
+    public void bindInt64(int ndx, long val){
+      checkRc(CApi.sqlite3_bind_int64(thisStmt(), ndx, val));
+    }
+    public void bindDouble(int ndx, double val){
+      checkRc(CApi.sqlite3_bind_double(thisStmt(), ndx, val));
+    }
+    public void bindObject(int ndx, Object o){
+      checkRc(CApi.sqlite3_bind_java_object(thisStmt(), ndx, o));
+    }
+    public void bindNull(int ndx){
+      checkRc(CApi.sqlite3_bind_null(thisStmt(), ndx));
+    }
+    public int bindParameterCount(){
+      return CApi.sqlite3_bind_parameter_count(thisStmt());
+    }
+    public int bindParameterIndex(String paramName){
+      return CApi.sqlite3_bind_parameter_index(thisStmt(), paramName);
+    }
+    public String bindParameterName(int ndx){
+      return CApi.sqlite3_bind_parameter_name(thisStmt(), ndx);
+    }
+    public void bindText(int ndx, byte[] utf8){
+      checkRc(CApi.sqlite3_bind_text(thisStmt(), ndx, utf8));
+    }
+    public void bindText(int ndx, String asUtf8){
+      checkRc(CApi.sqlite3_bind_text(thisStmt(), ndx, asUtf8));
+    }
+    public void bindText16(int ndx, byte[] utf16){
+      checkRc(CApi.sqlite3_bind_text16(thisStmt(), ndx, utf16));
+    }
+    public void bindText16(int ndx, String asUtf16){
+      checkRc(CApi.sqlite3_bind_text16(thisStmt(), ndx, asUtf16));
+    }
+    public void bindZeroBlob(int ndx, int n){
+      checkRc(CApi.sqlite3_bind_zeroblob(thisStmt(), ndx, n));
+    }
+    public void bindBlob(int ndx, byte[] bytes){
+      checkRc(CApi.sqlite3_bind_blob(thisStmt(), ndx, bytes));
+    }
+
+    public byte[] columnBlob(int ndx){
+      return CApi.sqlite3_column_blob( checkColIndex(ndx), ndx );
+    }
+    public byte[] columnText(int ndx){
+      return CApi.sqlite3_column_text( checkColIndex(ndx), ndx );
+    }
+    public String columnText16(int ndx){
+      return CApi.sqlite3_column_text16( checkColIndex(ndx), ndx );
+    }
+    public int columnBytes(int ndx){
+      return CApi.sqlite3_column_bytes( checkColIndex(ndx), ndx );
+    }
+    public int columnBytes16(int ndx){
+      return CApi.sqlite3_column_bytes16( checkColIndex(ndx), ndx );
+    }
+    public int columnInt(int ndx){
+      return CApi.sqlite3_column_int( checkColIndex(ndx), ndx );
+    }
+    public long columnInt64(int ndx){
+      return CApi.sqlite3_column_int64( checkColIndex(ndx), ndx );
+    }
+    public double columnDouble(int ndx){
+      return CApi.sqlite3_column_double( checkColIndex(ndx), ndx );
+    }
+    public int columnType(int ndx){
+      return CApi.sqlite3_column_type( checkColIndex(ndx), ndx );
+    }
+    public String columnDeclType(int ndx){
+      return CApi.sqlite3_column_decltype( checkColIndex(ndx), ndx );
+    }
+    /**
+       Analog to sqlite3_column_count() but throws if this statement
+       has been finalized.
+    */
+    public int columnCount(){
+      /* We cannot reliably cache the column count in a class
+         member because an ALTER TABLE from a separate statement
+         can invalidate that count and we have no way, short of
+         installing a COMMIT handler or the like, of knowing when
+         to re-read it. We cannot install such a handler without
+         interfering with a client's ability to do so. */
+      return CApi.sqlite3_column_count(thisStmt());
+    }
+    public int columnDataCount(){
+      return CApi.sqlite3_data_count( thisStmt() );
+    }
+    public Object columnObject(int ndx){
+      return CApi.sqlite3_column_java_object( checkColIndex(ndx), ndx );
+    }
+    public <T> T columnObject(int ndx, Class<T> type){
+      return CApi.sqlite3_column_java_object( checkColIndex(ndx), ndx, type );
+    }
+    public String columnName(int ndx){
+      return CApi.sqlite3_column_name( checkColIndex(ndx), ndx );
+    }
+    public String columnDatabaseName(int ndx){
+      return CApi.sqlite3_column_database_name( checkColIndex(ndx), ndx );
+    }
+    public String columnOriginName(int ndx){
+      return CApi.sqlite3_column_origin_name( checkColIndex(ndx), ndx );
+    }
+    public String columnTableName(int ndx){
+      return CApi.sqlite3_column_table_name( checkColIndex(ndx), ndx );
+    }
+  } /* Stmt class */
+
+  /**
+     Interface for auto-extensions, as per the
+     sqlite3_auto_extension() API.
+
+     Design note: the chicken/egg timing of auto-extension execution
+     requires that this feature be entirely re-implemented in Java
+     because the C-level API has no access to the Sqlite type so
+     cannot pass on an object of that type while the database is being
+     opened.  One side effect of this reimplementation is that this
+     class's list of auto-extensions is 100% independent of the
+     C-level list so, e.g., clearAutoExtensions() will have no effect
+     on auto-extensions added via the C-level API and databases opened
+     from that level of API will not be passed to this level's
+     AutoExtension instances.
+  */
+  public interface AutoExtension {
+    public void call(Sqlite db);
+  }
+
+  private static final java.util.Set<AutoExtension> autoExtensions =
+    new java.util.LinkedHashSet<>();
+
+  /**
+     Passes db to all auto-extensions. If any one of them throws,
+     db.close() is called before the exception is propagated.
+  */
+  private static void runAutoExtensions(Sqlite db){
+    AutoExtension list[];
+    synchronized(autoExtensions){
+      /* Avoid that modifications to the AutoExtension list from within
+         auto-extensions affect this execution of this list. */
+      list = autoExtensions.toArray(new AutoExtension[0]);
+    }
+    try {
+      for( AutoExtension ax : list ) ax.call(db);
+    }catch(Exception e){
+      db.close();
+      throw e;
+    }
+  }
+
+  /**
+     Analog to sqlite3_auto_extension(), adds the given object to the
+     list of auto-extensions if it is not already in that list. The
+     given object will be run as part of Sqlite.open(), and passed the
+     being-opened database. If the extension throws then open() will
+     fail.
+
+     This API does not guaranty whether or not manipulations made to
+     the auto-extension list from within auto-extension callbacks will
+     affect the current traversal of the auto-extension list.  Whether
+     or not they do is unspecified and subject to change between
+     versions. e.g. if an AutoExtension calls addAutoExtension(),
+     whether or not the new extension will be run on the being-opened
+     database is undefined.
+
+     Note that calling Sqlite.open() from an auto-extension will
+     necessarily result in recursion loop and (eventually) a stack
+     overflow.
+  */
+  public static void addAutoExtension( AutoExtension e ){
+    if( null==e ){
+      throw new IllegalArgumentException("AutoExtension may not be null.");
+    }
+    synchronized(autoExtensions){
+      autoExtensions.add(e);
+    }
+  }
+
+  /**
+     Removes the given object from the auto-extension list if it is in
+     that list, otherwise this has no side-effects beyond briefly
+     locking that list.
+  */
+  public static void removeAutoExtension( AutoExtension e ){
+    synchronized(autoExtensions){
+      autoExtensions.remove(e);
+    }
+  }
+
+  /**
+     Removes all auto-extensions which were added via addAutoExtension().
+  */
+  public static void clearAutoExtensions(){
+    synchronized(autoExtensions){
+      autoExtensions.clear();
+    }
+  }
+
+  /**
+     Encapsulates state related to the sqlite3 backup API. Use
+     Sqlite.initBackup() to create new instances.
+  */
+  public static final class Backup implements AutoCloseable {
+    private sqlite3_backup b = null;
+    private Sqlite dbTo = null;
+    private Sqlite dbFrom = null;
+
+    Backup(Sqlite dbDest, String schemaDest,Sqlite dbSrc, String schemaSrc){
+      this.dbTo = dbDest;
+      this.dbFrom = dbSrc;
+      b = CApi.sqlite3_backup_init(dbDest.nativeHandle(), schemaDest,
+                                   dbSrc.nativeHandle(), schemaSrc);
+      if(null==b) toss();
+    }
+
+    private void toss(){
+      int rc = CApi.sqlite3_errcode(dbTo.nativeHandle());
+      if(0!=rc) throw new SqliteException(dbTo);
+      rc = CApi.sqlite3_errcode(dbFrom.nativeHandle());
+      if(0!=rc) throw new SqliteException(dbFrom);
+      throw new SqliteException(CApi.SQLITE_ERROR);
+    }
+
+    private sqlite3_backup getNative(){
+      if( null==b ) throw new IllegalStateException("This Backup is already closed.");
+      return b;
+    }
+    /**
+       If this backup is still active, this completes the backup and
+       frees its native resources, otherwise it this is a no-op.
+    */
+    public void finish(){
+      if( null!=b ){
+        CApi.sqlite3_backup_finish(b);
+        b = null;
+        dbTo = null;
+        dbFrom = null;
+      }
+    }
+
+    /** Equivalent to finish(). */
+    @Override public void close(){
+      this.finish();
+    }
+
+    /**
+       Analog to sqlite3_backup_step(). Returns 0 if stepping succeeds
+       or, Sqlite.DONE if the end is reached, Sqlite.BUSY if one of
+       the databases is busy, Sqlite.LOCKED if one of the databases is
+       locked, and throws for any other result code or if this object
+       has been closed. Note that BUSY and LOCKED are not necessarily
+       permanent errors, so do not trigger an exception.
+    */
+    public int step(int pageCount){
+      final int rc = CApi.sqlite3_backup_step(getNative(), pageCount);
+      switch(rc){
+        case 0:
+        case Sqlite.DONE:
+        case Sqlite.BUSY:
+        case Sqlite.LOCKED:
+          return rc;
+        default:
+          toss();
+          return CApi.SQLITE_ERROR/*not reached*/;
+      }
+    }
+
+    /**
+       Analog to sqlite3_backup_pagecount().
+    */
+    public int pageCount(){
+      return CApi.sqlite3_backup_pagecount(getNative());
+    }
+
+    /**
+       Analog to sqlite3_backup_remaining().
+    */
+    public int remaining(){
+      return CApi.sqlite3_backup_remaining(getNative());
+    }
+  }
+
+  /**
+     Analog to sqlite3_backup_init(). If schemaSrc is null, "main" is
+     assumed. Throws if either this db or dbSrc (the source db) are
+     not opened, if either of schemaDest or schemaSrc are null, or if
+     the underlying call to sqlite3_backup_init() fails.
+
+     The returned object must eventually be cleaned up by either
+     arranging for it to be auto-closed (e.g. using
+     try-with-resources) or by calling its finish() method.
+  */
+  public Backup initBackup(String schemaDest, Sqlite dbSrc, String schemaSrc){
+    thisDb();
+    dbSrc.thisDb();
+    if( null==schemaSrc || null==schemaDest ){
+      throw new IllegalArgumentException(
+        "Neither the source nor destination schema name may be null."
+      );
+    }
+    return new Backup(this, schemaDest, dbSrc, schemaSrc);
+  }
+
+
+  /**
+     Callback type for use with createCollation().
+   */
+  public interface Collation {
+    /**
+       Called by the SQLite core to compare inputs. Implementations
+       must compare its two arguments using memcmp(3) semantics.
+
+       Warning: the SQLite core has no mechanism for reporting errors
+       from custom collations and its workflow does not accommodate
+       propagation of exceptions from callbacks. Any exceptions thrown
+       from collations will be silently supressed and sorting results
+       will be unpredictable.
+    */
+    int call(byte[] lhs, byte[] rhs);
+  }
+
+  /**
+     Analog to sqlite3_create_collation().
+
+     Throws if name is null or empty, c is null, or the encoding flag
+     is invalid. The encoding must be one of the UTF8, UTF16, UTF16LE,
+     or UTF16BE constants.
+  */
+  public void createCollation(String name, int encoding, Collation c){
+    thisDb();
+    if( null==name || 0==name.length()){
+      throw new IllegalArgumentException("Collation name may not be null or empty.");
+    }
+    if( null==c ){
+      throw new IllegalArgumentException("Collation may not be null.");
+    }
+    switch(encoding){
+      case UTF8:
+      case UTF16:
+      case UTF16LE:
+      case UTF16BE:
+        break;
+      default:
+        throw new IllegalArgumentException("Invalid Collation encoding.");
+    }
+    checkRc(
+      CApi.sqlite3_create_collation(
+        thisDb(), name, encoding, new org.sqlite.jni.capi.CollationCallback(){
+            @Override public int call(byte[] lhs, byte[] rhs){
+              try{return c.call(lhs, rhs);}
+              catch(Exception e){return 0;}
+            }
+            @Override public void xDestroy(){}
+          }
+      )
+    );
+  }
+
+  /**
+     Callback for use with onCollationNeeded().
+  */
+  public interface CollationNeeded {
+    /**
+       Must behave as documented for the callback for
+       sqlite3_collation_needed().
+
+       Warning: the C API has no mechanism for reporting or
+       propagating errors from this callback, so any exceptions it
+       throws are suppressed.
+    */
+    void call(Sqlite db, int encoding, String collationName);
+  }
+
+  /**
+     Sets up the given object to be called by the SQLite core when it
+     encounters a collation name which it does not know. Pass a null
+     object to disconnect the object from the core. This replaces any
+     existing collation-needed loader, or is a no-op if the given
+     object is already registered. Throws if registering the loader
+     fails.
+  */
+  public void onCollationNeeded( CollationNeeded cn ){
+    org.sqlite.jni.capi.CollationNeededCallback cnc = null;
+    if( null!=cn ){
+      cnc = new org.sqlite.jni.capi.CollationNeededCallback(){
+          @Override public void call(sqlite3 db, int encoding, String collationName){
+            final Sqlite xdb = Sqlite.fromNative(db);
+            if(null!=xdb) cn.call(xdb, encoding, collationName);
+          }
+        };
+    }
+    checkRc( CApi.sqlite3_collation_needed(thisDb(), cnc) );
+  }
+
+  /**
+     Callback for use with busyHandler().
+  */
+  public interface BusyHandler {
+    /**
+       Must function as documented for the C-level
+       sqlite3_busy_handler() callback argument, minus the (void*)
+       argument the C-level function requires.
+
+       If this function throws, it is translated to a database-level
+       error.
+    */
+    int call(int n);
+  }
+
+  /**
+     Analog to sqlite3_busy_timeout().
+  */
+  public void setBusyTimeout(int ms){
+    checkRc(CApi.sqlite3_busy_timeout(thisDb(), ms));
+  }
+
+  /**
+     Analog to sqlite3_busy_handler(). If b is null then any
+     current handler is cleared.
+  */
+  public void setBusyHandler( BusyHandler b ){
+    org.sqlite.jni.capi.BusyHandlerCallback bhc = null;
+    if( null!=b ){
+      bhc = new org.sqlite.jni.capi.BusyHandlerCallback(){
+          @Override public int call(int n){
+            return b.call(n);
+          }
+        };
+    }
+    checkRc( CApi.sqlite3_busy_handler(thisDb(), bhc) );
+  }
+
+  public interface CommitHook {
+    /**
+       Must behave as documented for the C-level sqlite3_commit_hook()
+       callback. If it throws, the exception is translated into
+       a db-level error.
+    */
+    int call();
+  }
+
+  /**
+     A level of indirection to permit setCommitHook() to have similar
+     semantics as the C API, returning the previous hook. The caveat
+     is that if the low-level API is used to install a hook, it will
+     have a different hook type than Sqlite.CommitHook so
+     setCommitHook() will return null instead of that object.
+  */
+  private static class CommitHookProxy
+    implements org.sqlite.jni.capi.CommitHookCallback {
+    final CommitHook commitHook;
+    CommitHookProxy(CommitHook ch){
+      this.commitHook = ch;
+    }
+    @Override public int call(){
+      return commitHook.call();
+    }
+  }
+
+  /**
+     Analog to sqlite3_commit_hook(). Returns the previous hook, if
+     any (else null). Throws if this db is closed.
+
+     Minor caveat: if a commit hook is set on this object's underlying
+     db handle using the lower-level SQLite API, this function may
+     return null when replacing it, despite there being a hook,
+     because it will have a different callback type. So long as the
+     handle is only manipulated via the high-level API, this caveat
+     does not apply.
+  */
+  public CommitHook setCommitHook( CommitHook c ){
+    CommitHookProxy chp = null;
+    if( null!=c ){
+      chp = new CommitHookProxy(c);
+    }
+    final org.sqlite.jni.capi.CommitHookCallback rv =
+      CApi.sqlite3_commit_hook(thisDb(), chp);
+    return (rv instanceof CommitHookProxy)
+      ? ((CommitHookProxy)rv).commitHook
+      : null;
+  }
+
+
+  public interface RollbackHook {
+    /**
+       Must behave as documented for the C-level sqlite3_rollback_hook()
+       callback. If it throws, the exception is translated into
+       a db-level error.
+    */
+    void call();
+  }
+
+  /**
+     A level of indirection to permit setRollbackHook() to have similar
+     semantics as the C API, returning the previous hook. The caveat
+     is that if the low-level API is used to install a hook, it will
+     have a different hook type than Sqlite.RollbackHook so
+     setRollbackHook() will return null instead of that object.
+  */
+  private static class RollbackHookProxy
+    implements org.sqlite.jni.capi.RollbackHookCallback {
+    final RollbackHook rollbackHook;
+    RollbackHookProxy(RollbackHook ch){
+      this.rollbackHook = ch;
+    }
+    @Override public void call(){rollbackHook.call();}
+  }
+
+  /**
+     Analog to sqlite3_rollback_hook(). Returns the previous hook, if
+     any (else null). Throws if this db is closed.
+
+     Minor caveat: if a rollback hook is set on this object's underlying
+     db handle using the lower-level SQLite API, this function may
+     return null when replacing it, despite there being a hook,
+     because it will have a different callback type. So long as the
+     handle is only manipulated via the high-level API, this caveat
+     does not apply.
+  */
+  public RollbackHook setRollbackHook( RollbackHook c ){
+    RollbackHookProxy chp = null;
+    if( null!=c ){
+      chp = new RollbackHookProxy(c);
+    }
+    final org.sqlite.jni.capi.RollbackHookCallback rv =
+      CApi.sqlite3_rollback_hook(thisDb(), chp);
+    return (rv instanceof RollbackHookProxy)
+      ? ((RollbackHookProxy)rv).rollbackHook
+      : null;
+  }
+
+  public interface UpdateHook {
+    /**
+       Must function as described for the C-level sqlite3_update_hook()
+       callback.
+    */
+    void call(int opId, String dbName, String tableName, long rowId);
+  }
+
+  /**
+     A level of indirection to permit setUpdateHook() to have similar
+     semantics as the C API, returning the previous hook. The caveat
+     is that if the low-level API is used to install a hook, it will
+     have a different hook type than Sqlite.UpdateHook so
+     setUpdateHook() will return null instead of that object.
+  */
+  private static class UpdateHookProxy
+    implements org.sqlite.jni.capi.UpdateHookCallback {
+    final UpdateHook updateHook;
+    UpdateHookProxy(UpdateHook ch){
+      this.updateHook = ch;
+    }
+    @Override public void call(int opId, String dbName, String tableName, long rowId){
+      updateHook.call(opId, dbName, tableName, rowId);
+    }
+  }
+
+  /**
+     Analog to sqlite3_update_hook(). Returns the previous hook, if
+     any (else null). Throws if this db is closed.
+
+     Minor caveat: if a update hook is set on this object's underlying
+     db handle using the lower-level SQLite API, this function may
+     return null when replacing it, despite there being a hook,
+     because it will have a different callback type. So long as the
+     handle is only manipulated via the high-level API, this caveat
+     does not apply.
+  */
+  public UpdateHook setUpdateHook( UpdateHook c ){
+    UpdateHookProxy chp = null;
+    if( null!=c ){
+      chp = new UpdateHookProxy(c);
+    }
+    final org.sqlite.jni.capi.UpdateHookCallback rv =
+      CApi.sqlite3_update_hook(thisDb(), chp);
+    return (rv instanceof UpdateHookProxy)
+      ? ((UpdateHookProxy)rv).updateHook
+      : null;
+  }
+
+
+  /**
+     Callback interface for use with setProgressHandler().
+  */
+  public interface ProgressHandler {
+    /**
+       Must behave as documented for the C-level sqlite3_progress_handler()
+       callback. If it throws, the exception is translated into
+       a db-level error.
+    */
+    int call();
+  }
+
+  /**
+     Analog to sqlite3_progress_handler(), sets the current progress
+     handler or clears it if p is null.
+
+     Note that this API, in contrast to setUpdateHook(),
+     setRollbackHook(), and setCommitHook(), cannot return the
+     previous handler. That inconsistency is part of the lower-level C
+     API.
+  */
+  public void setProgressHandler( int n, ProgressHandler p ){
+    org.sqlite.jni.capi.ProgressHandlerCallback phc = null;
+    if( null!=p ){
+      phc = new org.sqlite.jni.capi.ProgressHandlerCallback(){
+          @Override public int call(){ return p.call(); }
+        };
+    }
+    CApi.sqlite3_progress_handler( thisDb(), n, phc );
+  }
+
+
+  /**
+     Callback for use with setAuthorizer().
+  */
+  public interface Authorizer {
+    /**
+       Must function as described for the C-level
+       sqlite3_set_authorizer() callback. If it throws, the error is
+       converted to a db-level error and the exception is suppressed.
+    */
+    int call(int opId, String s1, String s2, String s3, String s4);
+  }
+
+  /**
+     Analog to sqlite3_set_authorizer(), this sets the current
+     authorizer callback, or clears if it passed null.
+  */
+  public void setAuthorizer( Authorizer a ) {
+    org.sqlite.jni.capi.AuthorizerCallback ac = null;
+    if( null!=a ){
+      ac = new org.sqlite.jni.capi.AuthorizerCallback(){
+          @Override public int call(int opId, String s1, String s2, String s3, String s4){
+            return a.call(opId, s1, s2, s3, s4);
+          }
+        };
+    }
+    checkRc( CApi.sqlite3_set_authorizer( thisDb(), ac ) );
+  }
+
+  /**
+     Object type for use with blobOpen()
+  */
+  public final class Blob implements AutoCloseable {
+    private Sqlite db;
+    private sqlite3_blob b;
+    Blob(Sqlite db, sqlite3_blob b){
+      this.db = db;
+      this.b = b;
+    }
+
+    /**
+       If this blob is still opened, its low-level handle is
+       returned, else an IllegalArgumentException is thrown.
+    */
+    private sqlite3_blob thisBlob(){
+      if( null==b || 0==b.getNativePointer() ){
+        throw new IllegalArgumentException("This Blob has been finalized.");
+      }
+      return b;
+    }
+
+    /**
+       Analog to sqlite3_blob_close().
+    */
+    @Override public void close(){
+      if( null!=b ){
+        CApi.sqlite3_blob_close(b);
+        b = null;
+        db = null;
+      }
+    }
+
+    /**
+       Throws if the JVM does not have JNI-level support for
+       ByteBuffer.
+    */
+    private void checkNio(){
+      if( !Sqlite.JNI_SUPPORTS_NIO ){
+        throw new UnsupportedOperationException(
+          "This JVM does not support JNI access to ByteBuffer."
+        );
+      }
+    }
+    /**
+       Analog to sqlite3_blob_reopen() but throws on error.
+    */
+    public void reopen(long newRowId){
+      db.checkRc( CApi.sqlite3_blob_reopen(thisBlob(), newRowId) );
+    }
+
+    /**
+       Analog to sqlite3_blob_write() but throws on error.
+    */
+    public void write( byte[] bytes, int atOffset ){
+      db.checkRc( CApi.sqlite3_blob_write(thisBlob(), bytes, atOffset) );
+    }
+
+    /**
+       Analog to sqlite3_blob_read() but throws on error.
+    */
+    public void read( byte[] dest, int atOffset ){
+      db.checkRc( CApi.sqlite3_blob_read(thisBlob(), dest, atOffset) );
+    }
+
+    /**
+       Analog to sqlite3_blob_bytes().
+    */
+    public int bytes(){
+      return CApi.sqlite3_blob_bytes(thisBlob());
+    }
+  }
+
+  /**
+     Analog to sqlite3_blob_open(). Returns a Blob object for the
+     given database, table, column, and rowid. The blob is opened for
+     read-write mode if writeable is true, else it is read-only.
+
+     The returned object must eventually be freed, before this
+     database is closed, by either arranging for it to be auto-closed
+     or calling its close() method.
+
+     Throws on error.
+  */
+  public Blob blobOpen(String dbName, String tableName, String columnName,
+                       long iRow, boolean writeable){
+    final OutputPointer.sqlite3_blob out = new OutputPointer.sqlite3_blob();
+    checkRc(
+      CApi.sqlite3_blob_open(thisDb(), dbName, tableName, columnName,
+                             iRow, writeable ? 1 : 0, out)
+    );
+    return new Blob(this, out.take());
+  }
+
+  /**
+     Callback for use with libConfigLog().
+  */
+  public interface ConfigLog {
+    /**
+     Must function as described for a C-level callback for
+     sqlite3_config()'s SQLITE_CONFIG_LOG callback, with the slight
+     signature change. Any exceptions thrown from this callback are
+     necessarily suppressed.
+    */
+    void call(int errCode, String msg);
+  }
+
+  /**
+     Analog to sqlite3_config() with the SQLITE_CONFIG_LOG option,
+     this sets or (if log is null) clears the current logger.
+  */
+  public static void libConfigLog(ConfigLog log){
+    final org.sqlite.jni.capi.ConfigLogCallback l =
+      null==log
+      ? null
+      : new org.sqlite.jni.capi.ConfigLogCallback() {
+          @Override public void call(int errCode, String msg){
+            log.call(errCode, msg);
+          }
+        };
+      checkRcStatic(CApi.sqlite3_config(l));
+  }
+
+  /**
+     Callback for use with libConfigSqlLog().
+  */
+  public interface ConfigSqlLog {
+    /**
+       Must function as described for a C-level callback for
+       sqlite3_config()'s SQLITE_CONFIG_SQLLOG callback, with the
+       slight signature change. Any exceptions thrown from this
+       callback are necessarily suppressed.
+     */
+    void call(Sqlite db, String msg, int msgType);
+  }
+
+  /**
+     Analog to sqlite3_config() with the SQLITE_CONFIG_SQLLOG option,
+     this sets or (if log is null) clears the current logger.
+
+     If SQLite is built without SQLITE_ENABLE_SQLLOG defined then this
+     will throw an UnsupportedOperationException.
+  */
+  public static void libConfigSqlLog(ConfigSqlLog log){
+    Sqlite.checkSupported(hasNormalizeSql, "SQLITE_ENABLE_SQLLOG");
+    final org.sqlite.jni.capi.ConfigSqlLogCallback l =
+      null==log
+      ? null
+      : new org.sqlite.jni.capi.ConfigSqlLogCallback() {
+          @Override public void call(sqlite3 db, String msg, int msgType){
+            try{
+              log.call(fromNative(db), msg, msgType);
+            }catch(Exception e){
+              /* Suppressed */
+            }
+          }
+        };
+      checkRcStatic(CApi.sqlite3_config(l));
+  }
+
+  /**
+     Analog to the C-level sqlite3_config() with one of the
+     SQLITE_CONFIG_... constants defined as CONFIG_... in this
+     class. Throws on error, including passing of an unknown option or
+     if a specified option is not supported by the underlying build of
+     the SQLite library.
+   */
+  public static void libConfigOp( int op ){
+    checkRcStatic(CApi.sqlite3_config(op));
+  }
+
+}
diff --git a/ext/jni/src/org/sqlite/jni/wrapper1/SqliteException.java b/ext/jni/src/org/sqlite/jni/wrapper1/SqliteException.java
new file mode 100644
index 0000000000000000000000000000000000000000..9b4440f1905e3a6edb4eb5ee259269682499fbdb
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/wrapper1/SqliteException.java
@@ -0,0 +1,85 @@
+/*
+** 2023-10-09
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the wrapper1 interface for sqlite3.
+*/
+package org.sqlite.jni.wrapper1;
+import org.sqlite.jni.capi.CApi;
+import org.sqlite.jni.capi.sqlite3;
+
+/**
+   A wrapper for communicating C-level (sqlite3*) instances with
+   Java. These wrappers do not own their associated pointer, they
+   simply provide a type-safe way to communicate it between Java
+   and C via JNI.
+*/
+public final class SqliteException extends java.lang.RuntimeException {
+  private int errCode = CApi.SQLITE_ERROR;
+  private int xerrCode = CApi.SQLITE_ERROR;
+  private int errOffset = -1;
+  private int sysErrno = 0;
+
+  /**
+     Records the given error string and uses SQLITE_ERROR for both the
+     error code and extended error code.
+  */
+  public SqliteException(String msg){
+    super(msg);
+  }
+
+  /**
+     Uses sqlite3_errstr(sqlite3ResultCode) for the error string and
+     sets both the error code and extended error code to the given
+     value. This approach includes no database-level information and
+     systemErrno() will be 0, so is intended only for use with sqlite3
+     APIs for which a result code is not an error but which the
+     higher-level wrapper should treat as one.
+  */
+  public SqliteException(int sqlite3ResultCode){
+    super(CApi.sqlite3_errstr(sqlite3ResultCode));
+    errCode = xerrCode = sqlite3ResultCode;
+  }
+
+  /**
+     Records the current error state of db (which must not be null and
+     must refer to an opened db object). Note that this does not close
+     the db.
+
+     Design note: closing the db on error is really only useful during
+     a failed db-open operation, and the place(s) where that can
+     happen are inside this library, not client-level code.
+  */
+  SqliteException(sqlite3 db){
+    super(CApi.sqlite3_errmsg(db));
+    errCode = CApi.sqlite3_errcode(db);
+    xerrCode = CApi.sqlite3_extended_errcode(db);
+    errOffset = CApi.sqlite3_error_offset(db);
+    sysErrno = CApi.sqlite3_system_errno(db);
+  }
+
+  /**
+     Records the current error state of db (which must not be null and
+     must refer to an open database).
+  */
+  public SqliteException(Sqlite db){
+    this(db.nativeHandle());
+  }
+
+  public SqliteException(Sqlite.Stmt stmt){
+    this(stmt.getDb());
+  }
+
+  public int errcode(){ return errCode; }
+  public int extendedErrcode(){ return xerrCode; }
+  public int errorOffset(){ return errOffset; }
+  public int systemErrno(){ return sysErrno; }
+
+}
diff --git a/ext/jni/src/org/sqlite/jni/wrapper1/Tester2.java b/ext/jni/src/org/sqlite/jni/wrapper1/Tester2.java
new file mode 100644
index 0000000000000000000000000000000000000000..5ac41323cb8f4b34dc96ca45beca8bb7266384da
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/wrapper1/Tester2.java
@@ -0,0 +1,1213 @@
+/*
+** 2023-10-09
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file contains a set of tests for the sqlite3 JNI bindings.
+*/
+package org.sqlite.jni.wrapper1;
+import java.nio.charset.StandardCharsets;
+import java.util.Arrays;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import org.sqlite.jni.capi.CApi;
+
+/**
+   An annotation for Tester2 tests which we do not want to run in
+   reflection-driven test mode because either they are not suitable
+   for multi-threaded threaded mode or we have to control their execution
+   order.
+*/
+@java.lang.annotation.Retention(java.lang.annotation.RetentionPolicy.RUNTIME)
+@java.lang.annotation.Target({java.lang.annotation.ElementType.METHOD})
+@interface ManualTest{}
+/**
+   Annotation for Tester2 tests which mark those which must be skipped
+   in multi-threaded mode.
+*/
+@java.lang.annotation.Retention(java.lang.annotation.RetentionPolicy.RUNTIME)
+@java.lang.annotation.Target({java.lang.annotation.ElementType.METHOD})
+@interface SingleThreadOnly{}
+
+public class Tester2 implements Runnable {
+  //! True when running in multi-threaded mode.
+  private static boolean mtMode = false;
+  //! True to sleep briefly between tests.
+  private static boolean takeNaps = false;
+  //! True to shuffle the order of the tests.
+  private static boolean shuffle = false;
+  //! True to dump the list of to-run tests to stdout.
+  private static int listRunTests = 0;
+  //! True to squelch all out() and outln() output.
+  private static boolean quietMode = false;
+  //! Total number of runTests() calls.
+  private static int nTestRuns = 0;
+  //! List of test*() methods to run.
+  private static List<java.lang.reflect.Method> testMethods = null;
+  //! List of exceptions collected by run()
+  private static List<Exception> listErrors = new ArrayList<>();
+  private static final class Metrics {
+    //! Number of times createNewDb() (or equivalent) is invoked.
+    volatile int dbOpen = 0;
+  }
+
+  //! Instance ID.
+  private Integer tId;
+
+  Tester2(Integer id){
+    tId = id;
+  }
+
+  static final Metrics metrics = new Metrics();
+
+  public static synchronized void outln(){
+    if( !quietMode ){
+      System.out.println("");
+    }
+  }
+
+  public static synchronized void outPrefix(){
+    if( !quietMode ){
+      System.out.print(Thread.currentThread().getName()+": ");
+    }
+  }
+
+  public static synchronized void outln(Object val){
+    if( !quietMode ){
+      outPrefix();
+      System.out.println(val);
+    }
+  }
+
+  public static synchronized void out(Object val){
+    if( !quietMode ){
+      System.out.print(val);
+    }
+  }
+
+  @SuppressWarnings("unchecked")
+  public static synchronized void out(Object... vals){
+    if( !quietMode ){
+      outPrefix();
+      for(Object v : vals) out(v);
+    }
+  }
+
+  @SuppressWarnings("unchecked")
+  public static synchronized void outln(Object... vals){
+    if( !quietMode ){
+      out(vals); out("\n");
+    }
+  }
+
+  static volatile int affirmCount = 0;
+  public static synchronized int affirm(Boolean v, String comment){
+    ++affirmCount;
+    if( false ) assert( v /* prefer assert over exception if it's enabled because
+                 the JNI layer sometimes has to suppress exceptions,
+                 so they might be squelched on their way back to the
+                 top. */);
+    if( !v ) throw new RuntimeException(comment);
+    return affirmCount;
+  }
+
+  public static void affirm(Boolean v){
+    affirm(v, "Affirmation failed.");
+  }
+
+
+  public static void execSql(Sqlite db, String sql[]){
+    execSql(db, String.join("", sql));
+  }
+
+  /**
+     Executes all SQL statements in the given string. If throwOnError
+     is true then it will throw for any prepare/step errors, else it
+     will return the corresponding non-0 result code.
+  */
+  public static int execSql(Sqlite dbw, boolean throwOnError, String sql){
+    final ValueHolder<Integer> rv = new ValueHolder<>(0);
+    final Sqlite.PrepareMulti pm = new Sqlite.PrepareMulti(){
+        @Override public void call(Sqlite.Stmt stmt){
+          try{
+            while( Sqlite.ROW == (rv.value = stmt.step(throwOnError)) ){}
+          }
+          finally{ stmt.finalizeStmt(); }
+        }
+      };
+    try {
+      dbw.prepareMulti(sql, pm);
+    }catch(SqliteException se){
+      if( throwOnError ){
+        throw se;
+      }else{
+        /* This error (likely) happened in the prepare() phase and we
+           need to preempt it. */
+        rv.value = se.errcode();
+      }
+    }
+    return (rv.value==Sqlite.DONE) ? 0 : rv.value;
+  }
+
+  static void execSql(Sqlite db, String sql){
+    execSql(db, true, sql);
+  }
+
+  @SingleThreadOnly /* because it's thread-agnostic */
+  private void test1(){
+    affirm(Sqlite.libVersionNumber() == CApi.SQLITE_VERSION_NUMBER);
+  }
+
+  private void nap() throws InterruptedException {
+    if( takeNaps ){
+      Thread.sleep(java.util.concurrent.ThreadLocalRandom.current().nextInt(3, 17), 0);
+    }
+  }
+
+  Sqlite openDb(String name){
+    final Sqlite db = Sqlite.open(name, Sqlite.OPEN_READWRITE|
+                                  Sqlite.OPEN_CREATE|
+                                  Sqlite.OPEN_EXRESCODE);
+    ++metrics.dbOpen;
+    return db;
+  }
+
+  Sqlite openDb(){ return openDb(":memory:"); }
+
+  void testOpenDb1(){
+    Sqlite db = openDb();
+    affirm( 0!=db.nativeHandle().getNativePointer() );
+    affirm( "main".equals( db.dbName(0) ) );
+    db.setMainDbName("foo");
+    affirm( "foo".equals( db.dbName(0) ) );
+    affirm( db.dbConfig(Sqlite.DBCONFIG_DEFENSIVE, true)
+      /* The underlying function has different mangled names in jdk8
+         vs jdk19, and this call is here to ensure that the build
+         fails if it cannot find both names. */ );
+    affirm( !db.dbConfig(Sqlite.DBCONFIG_DEFENSIVE, false) );
+    SqliteException ex = null;
+    try{ db.dbConfig(0, false); }
+    catch(SqliteException e){ ex = e; }
+    affirm( null!=ex );
+    ex = null;
+    db.close();
+    affirm( null==db.nativeHandle() );
+
+    try{ db = openDb("/no/such/dir/.../probably"); }
+    catch(SqliteException e){ ex = e; }
+    affirm( ex!=null );
+    affirm( ex.errcode() != 0 );
+    affirm( ex.extendedErrcode() != 0 );
+    affirm( ex.errorOffset() < 0 );
+    // there's no reliable way to predict what ex.systemErrno() might be
+  }
+
+  void testPrepare1(){
+    try (Sqlite db = openDb()) {
+      Sqlite.Stmt stmt = db.prepare("SELECT ?1");
+      Exception e = null;
+      affirm( null!=stmt.nativeHandle() );
+      affirm( db == stmt.getDb() );
+      affirm( 1==stmt.bindParameterCount() );
+      affirm( "?1".equals(stmt.bindParameterName(1)) );
+      affirm( null==stmt.bindParameterName(2) );
+      stmt.bindInt64(1, 1);
+      stmt.bindDouble(1, 1.1);
+      stmt.bindObject(1, db);
+      stmt.bindNull(1);
+      stmt.bindText(1, new byte[] {32,32,32});
+      stmt.bindText(1, "123");
+      stmt.bindText16(1, "123".getBytes(StandardCharsets.UTF_16));
+      stmt.bindText16(1, "123");
+      stmt.bindZeroBlob(1, 8);
+      stmt.bindBlob(1, new byte[] {1,2,3,4});
+      stmt.bindInt(1, 17);
+      try{ stmt.bindInt(2,1); }
+      catch(Exception ex){ e = ex; }
+      affirm( null!=e );
+      e = null;
+      affirm( stmt.step() );
+      try{ stmt.columnInt(1); }
+      catch(Exception ex){ e = ex; }
+      affirm( null!=e );
+      e = null;
+      affirm( 17 == stmt.columnInt(0) );
+      affirm( 17L == stmt.columnInt64(0) );
+      affirm( 17.0 == stmt.columnDouble(0) );
+      affirm( "17".equals(stmt.columnText16(0)) );
+      affirm( !stmt.step() );
+      stmt.reset();
+      affirm( Sqlite.ROW==stmt.step(false) );
+      affirm( !stmt.step() );
+      affirm( 0 == stmt.finalizeStmt() );
+      affirm( null==stmt.nativeHandle() );
+
+      stmt = db.prepare("SELECT ?");
+      stmt.bindObject(1, db);
+      affirm( Sqlite.ROW == stmt.step(false) );
+      affirm( db==stmt.columnObject(0) );
+      affirm( db==stmt.columnObject(0, Sqlite.class ) );
+      affirm( null==stmt.columnObject(0, Sqlite.Stmt.class ) );
+      affirm( 0==stmt.finalizeStmt() )
+        /* getting a non-0 out of sqlite3_finalize() is tricky */;
+      affirm( null==stmt.nativeHandle() );
+    }
+  }
+
+  void testUdfScalar(){
+    final ValueHolder<Integer> xDestroyCalled = new ValueHolder<>(0);
+    try (Sqlite db = openDb()) {
+      execSql(db, "create table t(a); insert into t(a) values(1),(2),(3)");
+      final ValueHolder<Integer> vh = new ValueHolder<>(0);
+      final ScalarFunction f = new ScalarFunction(){
+          public void xFunc(SqlFunction.Arguments args){
+            affirm( db == args.getDb() );
+            for( SqlFunction.Arguments.Arg arg : args ){
+              vh.value += arg.getInt();
+            }
+            args.resultInt(vh.value);
+          }
+          public void xDestroy(){
+            ++xDestroyCalled.value;
+          }
+        };
+      db.createFunction("myfunc", -1, f);
+      Sqlite.Stmt q = db.prepare("select myfunc(1,2,3)");
+      affirm( q.step() );
+      affirm( 6 == vh.value );
+      affirm( 6 == q.columnInt(0) );
+      q.finalizeStmt();
+      affirm( 0 == xDestroyCalled.value );
+      vh.value = 0;
+      q = db.prepare("select myfunc(-1,-2,-3)");
+      affirm( q.step() );
+      affirm( -6 == vh.value );
+      affirm( -6 == q.columnInt(0) );
+      affirm( 0 == xDestroyCalled.value );
+      q.finalizeStmt();
+    }
+    affirm( 1 == xDestroyCalled.value );
+  }
+
+  void testUdfAggregate(){
+    final ValueHolder<Integer> xDestroyCalled = new ValueHolder<>(0);
+    Sqlite.Stmt q = null;
+    try (Sqlite db = openDb()) {
+      execSql(db, "create table t(a); insert into t(a) values(1),(2),(3)");
+      final AggregateFunction f = new AggregateFunction<Integer>(){
+          public void xStep(SqlFunction.Arguments args){
+            final ValueHolder<Integer> agg = this.getAggregateState(args, 0);
+            for( SqlFunction.Arguments.Arg arg : args ){
+              agg.value += arg.getInt();
+            }
+          }
+          public void xFinal(SqlFunction.Arguments args){
+            final Integer v = this.takeAggregateState(args);
+            if( null==v ) args.resultNull();
+            else args.resultInt(v);
+          }
+          public void xDestroy(){
+            ++xDestroyCalled.value;
+          }
+        };
+      db.createFunction("summer", 1, f);
+      q = db.prepare(
+        "with cte(v) as ("+
+        "select 3 union all select 5 union all select 7"+
+        ") select summer(v), summer(v+1) from cte"
+        /* ------------------^^^^^^^^^^^ ensures that we're handling
+           sqlite3_aggregate_context() properly. */
+      );
+      affirm( q.step() );
+      affirm( 15==q.columnInt(0) );
+      q.finalizeStmt();
+      q = null;
+      affirm( 0 == xDestroyCalled.value );
+      db.createFunction("summerN", -1, f);
+
+      q = db.prepare("select summerN(1,8,9), summerN(2,3,4)");
+      affirm( q.step() );
+      affirm( 18==q.columnInt(0) );
+      affirm( 9==q.columnInt(1) );
+      q.finalizeStmt();
+      q = null;
+
+    }/*db*/
+    finally{
+      if( null!=q ) q.finalizeStmt();
+    }
+    affirm( 2 == xDestroyCalled.value
+            /* because we've bound the same instance twice */ );
+  }
+
+  private void testUdfWindow(){
+    final Sqlite db = openDb();
+    /* Example window function, table, and results taken from:
+       https://sqlite.org/windowfunctions.html#udfwinfunc */
+    final WindowFunction func = new WindowFunction<Integer>(){
+        //! Impl of xStep() and xInverse()
+        private void xStepInverse(SqlFunction.Arguments args, int v){
+          this.getAggregateState(args,0).value += v;
+        }
+        @Override public void xStep(SqlFunction.Arguments args){
+          this.xStepInverse(args, args.getInt(0));
+        }
+        @Override public void xInverse(SqlFunction.Arguments args){
+          this.xStepInverse(args, -args.getInt(0));
+        }
+        //! Impl of xFinal() and xValue()
+        private void xFinalValue(SqlFunction.Arguments args, Integer v){
+          if(null == v) args.resultNull();
+          else args.resultInt(v);
+        }
+        @Override public void xFinal(SqlFunction.Arguments args){
+          xFinalValue(args, this.takeAggregateState(args));
+          affirm( null == this.getAggregateState(args,null).value );
+        }
+        @Override public void xValue(SqlFunction.Arguments args){
+          xFinalValue(args, this.getAggregateState(args,null).value);
+        }
+      };
+    db.createFunction("winsumint", 1, func);
+    execSql(db, new String[] {
+        "CREATE TEMP TABLE twin(x, y); INSERT INTO twin VALUES",
+        "('a', 4),('b', 5),('c', 3),('d', 8),('e', 1)"
+      });
+    final Sqlite.Stmt stmt = db.prepare(
+      "SELECT x, winsumint(y) OVER ("+
+      "ORDER BY x ROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING"+
+      ") AS sum_y "+
+      "FROM twin ORDER BY x;"
+    );
+    int n = 0;
+    while( stmt.step() ){
+      final String s = stmt.columnText16(0);
+      final int i = stmt.columnInt(1);
+      switch(++n){
+        case 1: affirm( "a".equals(s) && 9==i ); break;
+        case 2: affirm( "b".equals(s) && 12==i ); break;
+        case 3: affirm( "c".equals(s) && 16==i ); break;
+        case 4: affirm( "d".equals(s) && 12==i ); break;
+        case 5: affirm( "e".equals(s) && 9==i ); break;
+        default: affirm( false /* cannot happen */ );
+      }
+    }
+    stmt.close();
+    affirm( 5 == n );
+    db.close();
+  }
+
+  private void testKeyword(){
+    final int n = Sqlite.keywordCount();
+    affirm( n>0 );
+    affirm( !Sqlite.keywordCheck("_nope_") );
+    affirm( Sqlite.keywordCheck("seLect") );
+    affirm( null!=Sqlite.keywordName(0) );
+    affirm( null!=Sqlite.keywordName(n-1) );
+    affirm( null==Sqlite.keywordName(n) );
+  }
+
+
+  private void testExplain(){
+    final Sqlite db = openDb();
+    Sqlite.Stmt q = db.prepare("SELECT 1");
+    affirm( 0 == q.isExplain() );
+    q.explain(0);
+    affirm( 0 == q.isExplain() );
+    q.explain(1);
+    affirm( 1 == q.isExplain() );
+    q.explain(2);
+    affirm( 2 == q.isExplain() );
+    Exception ex = null;
+    try{
+      q.explain(-1);
+    }catch(Exception e){
+      ex = e;
+    }
+    affirm( ex instanceof SqliteException );
+    q.finalizeStmt();
+    db.close();
+  }
+
+
+  private void testTrace(){
+    final Sqlite db = openDb();
+    final ValueHolder<Integer> counter = new ValueHolder<>(0);
+    /* Ensure that characters outside of the UTF BMP survive the trip
+       from Java to sqlite3 and back to Java. (At no small efficiency
+       penalty.) */
+    final String nonBmpChar = "😃";
+    db.trace(
+      Sqlite.TRACE_ALL,
+      new Sqlite.TraceCallback(){
+        @Override public void call(int traceFlag, Object pNative, Object x){
+          ++counter.value;
+          //outln("TRACE "+traceFlag+" pNative = "+pNative.getClass().getName());
+          switch(traceFlag){
+            case Sqlite.TRACE_STMT:
+              affirm(pNative instanceof Sqlite.Stmt);
+              //outln("TRACE_STMT sql = "+x);
+              affirm(x instanceof String);
+              affirm( ((String)x).indexOf(nonBmpChar) > 0 );
+              break;
+            case Sqlite.TRACE_PROFILE:
+              affirm(pNative instanceof Sqlite.Stmt);
+              affirm(x instanceof Long);
+              //outln("TRACE_PROFILE time = "+x);
+              break;
+            case Sqlite.TRACE_ROW:
+              affirm(pNative instanceof Sqlite.Stmt);
+              affirm(null == x);
+              //outln("TRACE_ROW = "+sqlite3_column_text16((sqlite3_stmt)pNative, 0));
+              break;
+            case Sqlite.TRACE_CLOSE:
+              affirm(pNative instanceof Sqlite);
+              affirm(null == x);
+              break;
+            default:
+              affirm(false /*cannot happen*/);
+              break;
+          }
+        }
+      });
+    execSql(db, "SELECT coalesce(null,null,'"+nonBmpChar+"'); "+
+            "SELECT 'w"+nonBmpChar+"orld'");
+    affirm( 6 == counter.value );
+    db.close();
+    affirm( 7 == counter.value );
+  }
+
+  private void testStatus(){
+    final Sqlite db = openDb();
+    execSql(db, "create table t(a); insert into t values(1),(2),(3)");
+
+    Sqlite.Status s = Sqlite.libStatus(Sqlite.STATUS_MEMORY_USED, false);
+    affirm( s.current > 0 );
+    affirm( s.peak >= s.current );
+
+    s = db.status(Sqlite.DBSTATUS_SCHEMA_USED, false);
+    affirm( s.current > 0 );
+    affirm( s.peak == 0 /* always 0 for SCHEMA_USED */ );
+
+    db.close();
+  }
+
+  @SingleThreadOnly /* because multiple threads legitimately make these
+                       results unpredictable */
+  private synchronized void testAutoExtension(){
+    final ValueHolder<Integer> val = new ValueHolder<>(0);
+    final ValueHolder<String> toss = new ValueHolder<>(null);
+    final Sqlite.AutoExtension ax = new Sqlite.AutoExtension(){
+        @Override public void call(Sqlite db){
+          ++val.value;
+          if( null!=toss.value ){
+            throw new RuntimeException(toss.value);
+          }
+        }
+      };
+    Sqlite.addAutoExtension(ax);
+    openDb().close();
+    affirm( 1==val.value );
+    openDb().close();
+    affirm( 2==val.value );
+    Sqlite.clearAutoExtensions();
+    openDb().close();
+    affirm( 2==val.value );
+
+    Sqlite.addAutoExtension( ax );
+    Sqlite.addAutoExtension( ax ); // Must not add a second entry
+    Sqlite.addAutoExtension( ax ); // or a third one
+    openDb().close();
+    affirm( 3==val.value );
+
+    Sqlite db = openDb();
+    affirm( 4==val.value );
+    execSql(db, "ATTACH ':memory:' as foo");
+    affirm( 4==val.value, "ATTACH uses the same connection, not sub-connections." );
+    db.close();
+    db = null;
+
+    Sqlite.removeAutoExtension(ax);
+    openDb().close();
+    affirm( 4==val.value );
+    Sqlite.addAutoExtension(ax);
+    Exception err = null;
+    toss.value = "Throwing from auto_extension.";
+    try{
+      openDb();
+    }catch(Exception e){
+      err = e;
+    }
+    affirm( err!=null );
+    affirm( err.getMessage().indexOf(toss.value)>=0 );
+    toss.value = null;
+
+    val.value = 0;
+    final Sqlite.AutoExtension ax2 = new Sqlite.AutoExtension(){
+        @Override public void call(Sqlite db){
+          ++val.value;
+        }
+      };
+    Sqlite.addAutoExtension(ax2);
+    openDb().close();
+    affirm( 2 == val.value );
+    Sqlite.removeAutoExtension(ax);
+    openDb().close();
+    affirm( 3 == val.value );
+    Sqlite.addAutoExtension(ax);
+    openDb().close();
+    affirm( 5 == val.value );
+    Sqlite.removeAutoExtension(ax2);
+    openDb().close();
+    affirm( 6 == val.value );
+    Sqlite.addAutoExtension(ax2);
+    openDb().close();
+    affirm( 8 == val.value );
+
+    Sqlite.clearAutoExtensions();
+    openDb().close();
+    affirm( 8 == val.value );
+  }
+
+  private void testBackup(){
+    final Sqlite dbDest = openDb();
+
+    try (Sqlite dbSrc = openDb()) {
+      execSql(dbSrc, new String[]{
+          "pragma page_size=512; VACUUM;",
+          "create table t(a);",
+          "insert into t(a) values(1),(2),(3);"
+        });
+      Exception e = null;
+      try {
+        dbSrc.initBackup("main",dbSrc,"main");
+      }catch(Exception x){
+        e = x;
+      }
+      affirm( e instanceof SqliteException );
+      e = null;
+      try (Sqlite.Backup b = dbDest.initBackup("main",dbSrc,"main")) {
+        affirm( null!=b );
+        int rc;
+        while( Sqlite.DONE!=(rc = b.step(1)) ){
+          affirm( 0==rc );
+        }
+        affirm( b.pageCount() > 0 );
+        b.finish();
+      }
+    }
+
+    try (Sqlite.Stmt q = dbDest.prepare("SELECT sum(a) from t")) {
+      q.step();
+      affirm( q.columnInt(0) == 6 );
+    }
+    dbDest.close();
+  }
+
+  private void testCollation(){
+    final Sqlite db = openDb();
+    execSql(db, "CREATE TABLE t(a); INSERT INTO t(a) VALUES('a'),('b'),('c')");
+    final Sqlite.Collation myCollation = new Sqlite.Collation() {
+        private String myState =
+          "this is local state. There is much like it, but this is mine.";
+        @Override
+        // Reverse-sorts its inputs...
+        public int call(byte[] lhs, byte[] rhs){
+          int len = lhs.length > rhs.length ? rhs.length : lhs.length;
+          int c = 0, i = 0;
+          for(i = 0; i < len; ++i){
+            c = lhs[i] - rhs[i];
+            if(0 != c) break;
+          }
+          if(0==c){
+            if(i < lhs.length) c = 1;
+            else if(i < rhs.length) c = -1;
+          }
+          return -c;
+        }
+      };
+    final Sqlite.CollationNeeded collLoader = new Sqlite.CollationNeeded(){
+        @Override
+        public void call(Sqlite dbArg, int eTextRep, String collationName){
+          affirm(dbArg == db);
+          db.createCollation("reversi", eTextRep, myCollation);
+        }
+      };
+    db.onCollationNeeded(collLoader);
+    Sqlite.Stmt stmt = db.prepare("SELECT a FROM t ORDER BY a COLLATE reversi");
+    int counter = 0;
+    while( stmt.step() ){
+      final String val = stmt.columnText16(0);
+      ++counter;
+      switch(counter){
+        case 1: affirm("c".equals(val)); break;
+        case 2: affirm("b".equals(val)); break;
+        case 3: affirm("a".equals(val)); break;
+      }
+    }
+    affirm(3 == counter);
+    stmt.finalizeStmt();
+    stmt = db.prepare("SELECT a FROM t ORDER BY a");
+    counter = 0;
+    while( stmt.step() ){
+      final String val = stmt.columnText16(0);
+      ++counter;
+      //outln("Non-REVERSI'd row#"+counter+": "+val);
+      switch(counter){
+        case 3: affirm("c".equals(val)); break;
+        case 2: affirm("b".equals(val)); break;
+        case 1: affirm("a".equals(val)); break;
+      }
+    }
+    affirm(3 == counter);
+    stmt.finalizeStmt();
+    db.onCollationNeeded(null);
+    db.close();
+  }
+
+  @SingleThreadOnly /* because threads inherently break this test */
+  private void testBusy(){
+    final String dbName = "_busy-handler.db";
+    try{
+      Sqlite db1 = openDb(dbName);
+      ++metrics.dbOpen;
+      execSql(db1, "CREATE TABLE IF NOT EXISTS t(a)");
+      Sqlite db2 = openDb(dbName);
+      ++metrics.dbOpen;
+
+      final ValueHolder<Integer> xBusyCalled = new ValueHolder<>(0);
+      Sqlite.BusyHandler handler = new Sqlite.BusyHandler(){
+          @Override public int call(int n){
+            return n > 2 ? 0 : ++xBusyCalled.value;
+          }
+        };
+      db2.setBusyHandler(handler);
+
+      // Force a locked condition...
+      execSql(db1, "BEGIN EXCLUSIVE");
+      int rc = 0;
+      SqliteException ex = null;
+      try{
+        db2.prepare("SELECT * from t");
+      }catch(SqliteException x){
+        ex = x;
+      }
+      affirm( null!=ex );
+      affirm( Sqlite.BUSY == ex.errcode() );
+      affirm( 3 == xBusyCalled.value );
+      db1.close();
+      db2.close();
+    }finally{
+      try{(new java.io.File(dbName)).delete();}
+      catch(Exception e){/* ignore */}
+    }
+  }
+
+  private void testCommitHook(){
+    final Sqlite db = openDb();
+    final ValueHolder<Integer> counter = new ValueHolder<>(0);
+    final ValueHolder<Integer> hookResult = new ValueHolder<>(0);
+    final Sqlite.CommitHook theHook = new Sqlite.CommitHook(){
+        @Override public int call(){
+          ++counter.value;
+          return hookResult.value;
+        }
+      };
+    Sqlite.CommitHook oldHook = db.setCommitHook(theHook);
+    affirm( null == oldHook );
+    execSql(db, "CREATE TABLE t(a); INSERT INTO t(a) VALUES('a'),('b'),('c')");
+    affirm( 2 == counter.value );
+    execSql(db, "BEGIN; SELECT 1; SELECT 2; COMMIT;");
+    affirm( 2 == counter.value /* NOT invoked if no changes are made */ );
+    execSql(db, "BEGIN; update t set a='d' where a='c'; COMMIT;");
+    affirm( 3 == counter.value );
+    oldHook = db.setCommitHook(theHook);
+    affirm( theHook == oldHook );
+    execSql(db, "BEGIN; update t set a='e' where a='d'; COMMIT;");
+    affirm( 4 == counter.value );
+    oldHook = db.setCommitHook(null);
+    affirm( theHook == oldHook );
+    execSql(db, "BEGIN; update t set a='f' where a='e'; COMMIT;");
+    affirm( 4 == counter.value );
+    oldHook = db.setCommitHook(null);
+    affirm( null == oldHook );
+    execSql(db, "BEGIN; update t set a='g' where a='f'; COMMIT;");
+    affirm( 4 == counter.value );
+
+    final Sqlite.CommitHook newHook = new Sqlite.CommitHook(){
+        @Override public int call(){return 0;}
+      };
+    oldHook = db.setCommitHook(newHook);
+    affirm( null == oldHook );
+    execSql(db, "BEGIN; update t set a='h' where a='g'; COMMIT;");
+    affirm( 4 == counter.value );
+    oldHook = db.setCommitHook(theHook);
+    affirm( newHook == oldHook );
+    execSql(db, "BEGIN; update t set a='i' where a='h'; COMMIT;");
+    affirm( 5 == counter.value );
+    hookResult.value = Sqlite.ERROR;
+    int rc = execSql(db, false, "BEGIN; update t set a='j' where a='i'; COMMIT;");
+    affirm( Sqlite.CONSTRAINT_COMMITHOOK == rc );
+    affirm( 6 == counter.value );
+    db.close();
+  }
+
+  private void testRollbackHook(){
+    final Sqlite db = openDb();
+    final ValueHolder<Integer> counter = new ValueHolder<>(0);
+    final Sqlite.RollbackHook theHook = new Sqlite.RollbackHook(){
+        @Override public void call(){
+          ++counter.value;
+        }
+      };
+    Sqlite.RollbackHook oldHook = db.setRollbackHook(theHook);
+    affirm( null == oldHook );
+    execSql(db, "CREATE TABLE t(a); INSERT INTO t(a) VALUES('a'),('b'),('c')");
+    affirm( 0 == counter.value );
+    execSql(db, false, "BEGIN; SELECT 1; SELECT 2; ROLLBACK;");
+    affirm( 1 == counter.value /* contra to commit hook, is invoked if no changes are made */ );
+
+    final Sqlite.RollbackHook newHook = new Sqlite.RollbackHook(){
+        @Override public void call(){}
+      };
+    oldHook = db.setRollbackHook(newHook);
+    affirm( theHook == oldHook );
+    execSql(db, false, "BEGIN; SELECT 1; ROLLBACK;");
+    affirm( 1 == counter.value );
+    oldHook = db.setRollbackHook(theHook);
+    affirm( newHook == oldHook );
+    execSql(db, false, "BEGIN; SELECT 1; ROLLBACK;");
+    affirm( 2 == counter.value );
+    int rc = execSql(db, false, "BEGIN; SELECT 1; ROLLBACK;");
+    affirm( 0 == rc );
+    affirm( 3 == counter.value );
+    db.close();
+  }
+
+  private void testUpdateHook(){
+    final Sqlite db = openDb();
+    final ValueHolder<Integer> counter = new ValueHolder<>(0);
+    final ValueHolder<Integer> expectedOp = new ValueHolder<>(0);
+    final Sqlite.UpdateHook theHook = new Sqlite.UpdateHook(){
+        @Override
+        public void call(int opId, String dbName, String tableName, long rowId){
+          ++counter.value;
+          if( 0!=expectedOp.value ){
+            affirm( expectedOp.value == opId );
+          }
+        }
+      };
+    Sqlite.UpdateHook oldHook = db.setUpdateHook(theHook);
+    affirm( null == oldHook );
+    expectedOp.value = Sqlite.INSERT;
+    execSql(db, "CREATE TABLE t(a); INSERT INTO t(a) VALUES('a'),('b'),('c')");
+    affirm( 3 == counter.value );
+    expectedOp.value = Sqlite.UPDATE;
+    execSql(db, "update t set a='d' where a='c';");
+    affirm( 4 == counter.value );
+    oldHook = db.setUpdateHook(theHook);
+    affirm( theHook == oldHook );
+    expectedOp.value = Sqlite.DELETE;
+    execSql(db, "DELETE FROM t where a='d'");
+    affirm( 5 == counter.value );
+    oldHook = db.setUpdateHook(null);
+    affirm( theHook == oldHook );
+    execSql(db, "update t set a='e' where a='b';");
+    affirm( 5 == counter.value );
+    oldHook = db.setUpdateHook(null);
+    affirm( null == oldHook );
+
+    final Sqlite.UpdateHook newHook = new Sqlite.UpdateHook(){
+        @Override public void call(int opId, String dbName, String tableName, long rowId){
+        }
+      };
+    oldHook = db.setUpdateHook(newHook);
+    affirm( null == oldHook );
+    execSql(db, "update t set a='h' where a='a'");
+    affirm( 5 == counter.value );
+    oldHook = db.setUpdateHook(theHook);
+    affirm( newHook == oldHook );
+    expectedOp.value = Sqlite.UPDATE;
+    execSql(db, "update t set a='i' where a='h'");
+    affirm( 6 == counter.value );
+    db.close();
+  }
+
+  private void testProgress(){
+    final Sqlite db = openDb();
+    final ValueHolder<Integer> counter = new ValueHolder<>(0);
+    db.setProgressHandler(1, new Sqlite.ProgressHandler(){
+        @Override public int call(){
+          ++counter.value;
+          return 0;
+        }
+      });
+    execSql(db, "SELECT 1; SELECT 2;");
+    affirm( counter.value > 0 );
+    int nOld = counter.value;
+    db.setProgressHandler(0, null);
+    execSql(db, "SELECT 1; SELECT 2;");
+    affirm( nOld == counter.value );
+    db.close();
+  }
+
+  private void testAuthorizer(){
+    final Sqlite db = openDb();
+    final ValueHolder<Integer> counter = new ValueHolder<>(0);
+    final ValueHolder<Integer> authRc = new ValueHolder<>(0);
+    final Sqlite.Authorizer auth = new Sqlite.Authorizer(){
+        public int call(int op, String s0, String s1, String s2, String s3){
+          ++counter.value;
+          //outln("xAuth(): "+s0+" "+s1+" "+s2+" "+s3);
+          return authRc.value;
+        }
+      };
+    execSql(db, "CREATE TABLE t(a); INSERT INTO t(a) VALUES('a'),('b'),('c')");
+    db.setAuthorizer(auth);
+    execSql(db, "UPDATE t SET a=1");
+    affirm( 1 == counter.value );
+    authRc.value = Sqlite.DENY;
+    int rc = execSql(db, false, "UPDATE t SET a=2");
+    affirm( Sqlite.AUTH==rc );
+    db.setAuthorizer(null);
+    rc = execSql(db, false, "UPDATE t SET a=2");
+    affirm( 0==rc );
+    db.close();
+  }
+
+  private void testBlobOpen(){
+    final Sqlite db = openDb();
+
+    execSql(db, "CREATE TABLE T(a BLOB);"
+            +"INSERT INTO t(rowid,a) VALUES(1, 'def'),(2, 'XYZ');"
+    );
+    Sqlite.Blob b = db.blobOpen("main", "t", "a",
+                                db.lastInsertRowId(), true);
+    affirm( 3==b.bytes() );
+    b.write(new byte[] {100, 101, 102 /*"DEF"*/}, 0);
+    b.close();
+    Sqlite.Stmt stmt = db.prepare("SELECT length(a), a FROM t ORDER BY a");
+    affirm( stmt.step() );
+    affirm( 3 == stmt.columnInt(0) );
+    affirm( "def".equals(stmt.columnText16(1)) );
+    stmt.finalizeStmt();
+
+    b = db.blobOpen("main", "t", "a", db.lastInsertRowId(), false);
+    final byte[] tgt = new byte[3];
+    b.read( tgt, 0 );
+    affirm( 100==tgt[0] && 101==tgt[1] && 102==tgt[2], "DEF" );
+    execSql(db,"UPDATE t SET a=zeroblob(10) WHERE rowid=2");
+    b.close();
+    b = db.blobOpen("main", "t", "a", db.lastInsertRowId(), true);
+    byte[] bw = new byte[]{
+      0, 1, 2, 3, 4, 5, 6, 7, 8, 9
+    };
+    b.write(bw, 0);
+    byte[] br = new byte[10];
+    b.read(br, 0);
+    for( int i = 0; i < br.length; ++i ){
+      affirm(bw[i] == br[i]);
+    }
+    b.close();
+    db.close();
+  }
+
+  void testPrepareMulti(){
+    final ValueHolder<Integer> fCount = new ValueHolder<>(0);
+    final ValueHolder<Integer> mCount = new ValueHolder<>(0);
+    try (Sqlite db = openDb()) {
+      execSql(db, "create table t(a); insert into t(a) values(1),(2),(3)");
+      db.createFunction("counter", -1, new ScalarFunction(){
+          @Override public void xFunc(SqlFunction.Arguments args){
+            ++fCount.value;
+            args.resultNull();
+          }
+        }
+      );
+      final Sqlite.PrepareMulti pm = new Sqlite.PrepareMultiFinalize(
+        new Sqlite.PrepareMulti() {
+          @Override public void call(Sqlite.Stmt q){
+            ++mCount.value;
+            while(q.step()){}
+          }
+        }
+      );
+      final String sql = "select counter(*) from t;"+
+        "select counter(*) from t; /* comment */"+
+        "select counter(*) from t; -- comment\n"
+        ;
+      db.prepareMulti(sql, pm);
+    }
+    affirm( 3 == mCount.value );
+    affirm( 9 == fCount.value );
+  }
+
+
+  /* Copy/paste/rename this to add new tests. */
+  private void _testTemplate(){
+    try (Sqlite db = openDb()) {
+      Sqlite.Stmt stmt = db.prepare("SELECT 1");
+      stmt.finalizeStmt();
+    }
+  }
+
+  private void runTests(boolean fromThread) throws Exception {
+    List<java.lang.reflect.Method> mlist = testMethods;
+    affirm( null!=mlist );
+    if( shuffle ){
+      mlist = new ArrayList<>( testMethods.subList(0, testMethods.size()) );
+      java.util.Collections.shuffle(mlist);
+    }
+    if( (!fromThread && listRunTests>0) || listRunTests>1 ){
+      synchronized(this.getClass()){
+        if( !fromThread ){
+          out("Initial test"," list: ");
+          for(java.lang.reflect.Method m : testMethods){
+            out(m.getName()+" ");
+          }
+          outln();
+          outln("(That list excludes some which are hard-coded to run.)");
+        }
+        out("Running"," tests: ");
+        for(java.lang.reflect.Method m : mlist){
+          out(m.getName()+" ");
+        }
+        outln();
+      }
+    }
+    for(java.lang.reflect.Method m : mlist){
+      nap();
+      try{
+        m.invoke(this);
+      }catch(java.lang.reflect.InvocationTargetException e){
+        outln("FAILURE: ",m.getName(),"(): ", e.getCause());
+        throw e;
+      }
+    }
+    synchronized( this.getClass() ){
+      ++nTestRuns;
+    }
+  }
+
+  public void run() {
+    try {
+      runTests(0!=this.tId);
+    }catch(Exception e){
+      synchronized( listErrors ){
+        listErrors.add(e);
+      }
+    }finally{
+      Sqlite.uncacheThread();
+    }
+  }
+
+  /**
+     Runs the basic sqlite3 JNI binding sanity-check suite.
+
+     CLI flags:
+
+     -q|-quiet: disables most test output.
+
+     -t|-thread N: runs the tests in N threads
+      concurrently. Default=1.
+
+     -r|-repeat N: repeats the tests in a loop N times, each one
+      consisting of the -thread value's threads.
+
+     -shuffle: randomizes the order of most of the test functions.
+
+     -naps: sleep small random intervals between tests in order to add
+     some chaos for cross-thread contention.
+
+     -list-tests: outputs the list of tests being run, minus some
+      which are hard-coded. In multi-threaded mode, use this twice to
+      to emit the list run by each thread (which may differ from the initial
+      list, in particular if -shuffle is used).
+
+     -fail: forces an exception to be thrown during the test run.  Use
+     with -shuffle to make its appearance unpredictable.
+
+     -v: emit some developer-mode info at the end.
+  */
+  public static void main(String[] args) throws Exception {
+    Integer nThread = 1;
+    boolean doSomethingForDev = false;
+    Integer nRepeat = 1;
+    boolean forceFail = false;
+    boolean sqlLog = false;
+    boolean configLog = false;
+    boolean squelchTestOutput = false;
+    for( int i = 0; i < args.length; ){
+      String arg = args[i++];
+      if(arg.startsWith("-")){
+        arg = arg.replaceFirst("-+","");
+        if(arg.equals("v")){
+          doSomethingForDev = true;
+          //listBoundMethods();
+        }else if(arg.equals("t") || arg.equals("thread")){
+          nThread = Integer.parseInt(args[i++]);
+        }else if(arg.equals("r") || arg.equals("repeat")){
+          nRepeat = Integer.parseInt(args[i++]);
+        }else if(arg.equals("shuffle")){
+          shuffle = true;
+        }else if(arg.equals("list-tests")){
+          ++listRunTests;
+        }else if(arg.equals("fail")){
+          forceFail = true;
+        }else if(arg.equals("sqllog")){
+          sqlLog = true;
+        }else if(arg.equals("configlog")){
+          configLog = true;
+        }else if(arg.equals("naps")){
+          takeNaps = true;
+        }else if(arg.equals("q") || arg.equals("quiet")){
+          squelchTestOutput = true;
+        }else{
+          throw new IllegalArgumentException("Unhandled flag:"+arg);
+        }
+      }
+    }
+
+    if( sqlLog ){
+      if( Sqlite.compileOptionUsed("ENABLE_SQLLOG") ){
+        Sqlite.libConfigSqlLog( new Sqlite.ConfigSqlLog() {
+            @Override public void call(Sqlite db, String msg, int op){
+              switch(op){
+                case 0: outln("Opening db: ",db); break;
+                case 1: outln("SQL ",db,": ",msg); break;
+                case 2: outln("Closing db: ",db); break;
+              }
+            }
+          }
+        );
+      }else{
+        outln("WARNING: -sqllog is not active because library was built ",
+              "without SQLITE_ENABLE_SQLLOG.");
+      }
+    }
+    if( configLog ){
+      Sqlite.libConfigLog( new Sqlite.ConfigLog() {
+          @Override public void call(int code, String msg){
+            outln("ConfigLog: ",Sqlite.errstr(code),": ", msg);
+          };
+        }
+      );
+    }
+
+    quietMode = squelchTestOutput;
+    outln("If you just saw warning messages regarding CallStaticObjectMethod, ",
+          "you are very likely seeing the side effects of a known openjdk8 ",
+          "bug. It is unsightly but does not affect the library.");
+
+    {
+      // Build list of tests to run from the methods named test*().
+      testMethods = new ArrayList<>();
+      int nSkipped = 0;
+      for(final java.lang.reflect.Method m : Tester2.class.getDeclaredMethods()){
+        final String name = m.getName();
+        if( name.equals("testFail") ){
+          if( forceFail ){
+            testMethods.add(m);
+          }
+        }else if( !m.isAnnotationPresent( ManualTest.class ) ){
+          if( nThread>1 && m.isAnnotationPresent( SingleThreadOnly.class ) ){
+            if( 0==nSkipped++ ){
+              out("Skipping tests in multi-thread mode:");
+            }
+            out(" "+name+"()");
+          }else if( name.startsWith("test") ){
+            testMethods.add(m);
+          }
+        }
+      }
+      if( nSkipped>0 ) out("\n");
+    }
+
+    final long timeStart = System.currentTimeMillis();
+    outln("libversion_number: ",
+          Sqlite.libVersionNumber(),"\n",
+          Sqlite.libVersion(),"\n",Sqlite.libSourceId(),"\n",
+          "SQLITE_THREADSAFE=",CApi.sqlite3_threadsafe());
+    final boolean showLoopCount = (nRepeat>1 && nThread>1);
+    if( showLoopCount ){
+      outln("Running ",nRepeat," loop(s) with ",nThread," thread(s) each.");
+    }
+    if( takeNaps ) outln("Napping between tests is enabled.");
+    int nLoop = 0;
+    for( int n = 0; n < nRepeat; ++n ){
+      ++nLoop;
+      if( showLoopCount ) out((1==nLoop ? "" : " ")+nLoop);
+      if( nThread<=1 ){
+        new Tester2(0).runTests(false);
+        continue;
+      }
+      Tester2.mtMode = true;
+      final ExecutorService ex = Executors.newFixedThreadPool( nThread );
+      for( int i = 0; i < nThread; ++i ){
+        ex.submit( new Tester2(i), i );
+      }
+      ex.shutdown();
+      try{
+        ex.awaitTermination(nThread*200, java.util.concurrent.TimeUnit.MILLISECONDS);
+        ex.shutdownNow();
+      }catch (InterruptedException ie){
+        ex.shutdownNow();
+        Thread.currentThread().interrupt();
+      }
+      if( !listErrors.isEmpty() ){
+        quietMode = false;
+        outln("TEST ERRORS:");
+        Exception err = null;
+        for( Exception e : listErrors ){
+          e.printStackTrace();
+          if( null==err ) err = e;
+        }
+        if( null!=err ) throw err;
+      }
+    }
+    if( showLoopCount ) outln();
+    quietMode = false;
+
+    final long timeEnd = System.currentTimeMillis();
+    outln("Tests done. Metrics across ",nTestRuns," total iteration(s):");
+    outln("\tAssertions checked: ",affirmCount);
+    outln("\tDatabases opened: ",metrics.dbOpen);
+    if( doSomethingForDev ){
+      CApi.sqlite3_jni_internal_details();
+    }
+    affirm( 0==Sqlite.libReleaseMemory(1) );
+    CApi.sqlite3_shutdown();
+    int nMethods = 0;
+    int nNatives = 0;
+    int nCanonical = 0;
+    final java.lang.reflect.Method[] declaredMethods =
+      CApi.class.getDeclaredMethods();
+    for(java.lang.reflect.Method m : declaredMethods){
+      final int mod = m.getModifiers();
+      if( 0!=(mod & java.lang.reflect.Modifier.STATIC) ){
+        final String name = m.getName();
+        if(name.startsWith("sqlite3_")){
+          ++nMethods;
+          if( 0!=(mod & java.lang.reflect.Modifier.NATIVE) ){
+            ++nNatives;
+          }
+        }
+      }
+    }
+    outln("\tCApi.sqlite3_*() methods: "+
+          nMethods+" total, with "+
+          nNatives+" native, "+
+          (nMethods - nNatives)+" Java"
+    );
+    outln("\tTotal test time = "
+          +(timeEnd - timeStart)+"ms");
+  }
+}
diff --git a/ext/jni/src/org/sqlite/jni/wrapper1/ValueHolder.java b/ext/jni/src/org/sqlite/jni/wrapper1/ValueHolder.java
new file mode 100644
index 0000000000000000000000000000000000000000..7549bb97b28e2a1fd350a40988c3dbc492cfad12
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/wrapper1/ValueHolder.java
@@ -0,0 +1,25 @@
+/*
+** 2023-10-16
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file contains the ValueHolder utility class.
+*/
+package org.sqlite.jni.wrapper1;
+
+/**
+   A helper class which simply holds a single value. Its primary use
+   is for communicating values out of anonymous callbacks, as doing so
+   requires a "final" reference.
+*/
+public class ValueHolder<T> {
+  public T value;
+  public ValueHolder(){}
+  public ValueHolder(T v){value = v;}
+}
diff --git a/ext/jni/src/org/sqlite/jni/wrapper1/WindowFunction.java b/ext/jni/src/org/sqlite/jni/wrapper1/WindowFunction.java
new file mode 100644
index 0000000000000000000000000000000000000000..a3905567d468cda90270a35e57b75031085911f9
--- /dev/null
+++ b/ext/jni/src/org/sqlite/jni/wrapper1/WindowFunction.java
@@ -0,0 +1,42 @@
+/*
+** 2023-10-16
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the wrapper1 interface for sqlite3.
+*/
+package org.sqlite.jni.wrapper1;
+
+/**
+   A SqlFunction implementation for window functions. The T type
+   represents the type of data accumulated by this function while it
+   works. e.g. a SUM()-like UDF might use Integer or Long and a
+   CONCAT()-like UDF might use a StringBuilder or a List<String>.
+*/
+public abstract class WindowFunction<T> extends AggregateFunction<T>  {
+
+  /**
+     As for the xInverse() argument of the C API's
+     sqlite3_create_window_function().  If this function throws, the
+     exception is reported via sqlite3_result_error().
+  */
+  public abstract void xInverse(SqlFunction.Arguments args);
+
+  /**
+     As for the xValue() argument of the C API's
+     sqlite3_create_window_function(). If this function throws, it is
+     translated into sqlite3_result_error().
+
+     Note that the passed-in object will not actually contain any
+     arguments for xValue() but will contain the context object needed
+     for setting the call's result or error state.
+  */
+  public abstract void xValue(SqlFunction.Arguments args);
+
+}
diff --git a/ext/jni/src/tests/000-000-sanity.test b/ext/jni/src/tests/000-000-sanity.test
new file mode 100644
index 0000000000000000000000000000000000000000..4ccbece31c3ae6c64d119756558ae49fefcd15b5
--- /dev/null
+++ b/ext/jni/src/tests/000-000-sanity.test
@@ -0,0 +1,53 @@
+/*
+** This is a comment. There are many like it but this one is mine.
+**
+** SCRIPT_MODULE_NAME:      sanity-check
+** xMIXED_MODULE_NAME:       mixed-module
+** xMODULE_NAME:             module-name
+** xREQUIRED_PROPERTIES:      small fast reliable
+** xREQUIRED_PROPERTIES:      RECURSIVE_TRIGGERS
+** xREQUIRED_PROPERTIES:      TEMPSTORE_FILE TEMPSTORE_MEM
+** xREQUIRED_PROPERTIES:      AUTOVACUUM INCRVACUUM
+**
+*/
+--print starting up 😃
+--close all
+--oom
+--db 0
+--new my.db
+--null zilch
+--testcase 1.0
+SELECT 1, null;
+--result 1 zilch
+--glob *zil*
+--notglob *ZIL*
+SELECT 1, 2;
+intentional error;
+--run
+--testcase json-1
+SELECT json_array(1,2,3)
+--json [1,2,3]
+--testcase tableresult-1
+  select 1, 'a';
+  select 2, 'b';
+--tableresult
+  # [a-z]
+  2 b
+--end
+--testcase json-block-1
+  select json_array(1,2,3);
+  select json_object('a',1,'b',2);
+--json-block
+  [1,2,3]
+  {"a":1,"b":2}
+--end
+--testcase col-names-on
+--column-names 1
+  select 1 as 'a', 2 as 'b';
+--result a 1 b 2
+--testcase col-names-off
+--column-names 0
+  select 1 as 'a', 2 as 'b';
+--result 1 2
+--close
+--print reached the end 😃
diff --git a/ext/jni/src/tests/000-001-ignored.test b/ext/jni/src/tests/000-001-ignored.test
new file mode 100644
index 0000000000000000000000000000000000000000..5af852e197318b63649e1cc042a158d10ff7d2e3
--- /dev/null
+++ b/ext/jni/src/tests/000-001-ignored.test
@@ -0,0 +1,9 @@
+/*
+** This script must be marked as ignored because it contains
+** content which triggers that condition.
+**
+** SCRIPT_MODULE_NAME:        ignored
+**
+*/
+
+|
diff --git a/ext/jni/src/tests/900-001-fts.test b/ext/jni/src/tests/900-001-fts.test
new file mode 100644
index 0000000000000000000000000000000000000000..65285e86b06d995e3bbd7de6cd0e603ba8466210
--- /dev/null
+++ b/ext/jni/src/tests/900-001-fts.test
@@ -0,0 +1,12 @@
+/*
+** SCRIPT_MODULE_NAME:      fts5-sanity-checks
+** xREQUIRED_PROPERTIES:     FTS5
+**
+*/
+
+--testcase 1.0
+CREATE VIRTUAL TABLE email USING fts5(sender, title, body);
+insert into email values('fred','Help!','Dear Sir...');
+insert into email values('barney','Assistance','Dear Madam...');
+select * from email where email match 'assistance';
+--result barney Assistance {Dear Madam...}
diff --git a/ext/lsm1/Makefile b/ext/lsm1/Makefile
new file mode 100644
index 0000000000000000000000000000000000000000..d497a1d133eff6bf09d029a1cf819d2de7fca3fb
--- /dev/null
+++ b/ext/lsm1/Makefile
@@ -0,0 +1,56 @@
+#
+# This Makefile is designed for use with main.mk in the root directory of
+# this project. After including main.mk, the users makefile should contain:
+#
+#    LSMDIR=$(TOP)/ext/lsm1/
+#    LSMOPTS=-fPIC
+#    include $(LSMDIR)/Makefile
+#
+# The most useful targets are [lsmtest] and [lsm.so].
+#
+
+LSMOBJ    = \
+  lsm_ckpt.o \
+  lsm_file.o \
+  lsm_log.o \
+  lsm_main.o \
+  lsm_mem.o \
+  lsm_mutex.o \
+  lsm_shared.o \
+  lsm_sorted.o \
+  lsm_str.o \
+  lsm_tree.o \
+  lsm_unix.o \
+  lsm_win32.o \
+  lsm_varint.o \
+  lsm_vtab.o
+
+LSMHDR   = \
+  $(LSMDIR)/lsm.h \
+  $(LSMDIR)/lsmInt.h
+
+LSMTESTSRC = $(LSMDIR)/lsm-test/lsmtest1.c $(LSMDIR)/lsm-test/lsmtest2.c     \
+             $(LSMDIR)/lsm-test/lsmtest3.c $(LSMDIR)/lsm-test/lsmtest4.c     \
+             $(LSMDIR)/lsm-test/lsmtest5.c $(LSMDIR)/lsm-test/lsmtest6.c     \
+             $(LSMDIR)/lsm-test/lsmtest7.c $(LSMDIR)/lsm-test/lsmtest8.c     \
+             $(LSMDIR)/lsm-test/lsmtest9.c                                   \
+             $(LSMDIR)/lsm-test/lsmtest_datasource.c \
+             $(LSMDIR)/lsm-test/lsmtest_func.c $(LSMDIR)/lsm-test/lsmtest_io.c  \
+             $(LSMDIR)/lsm-test/lsmtest_main.c $(LSMDIR)/lsm-test/lsmtest_mem.c \
+             $(LSMDIR)/lsm-test/lsmtest_tdb.c $(LSMDIR)/lsm-test/lsmtest_tdb3.c \
+             $(LSMDIR)/lsm-test/lsmtest_util.c $(LSMDIR)/lsm-test/lsmtest_win32.c
+
+
+# all: lsm.so
+
+LSMOPTS += -fPIC -DLSM_MUTEX_PTHREADS=1 -I$(LSMDIR) -DHAVE_ZLIB
+
+lsm.so:	$(LSMOBJ)
+	$(T.link) -shared -fPIC -o lsm.so $(LSMOBJ)
+
+%.o:	$(LSMDIR)/%.c $(LSMHDR) sqlite3.h
+	$(T.link) $(LSMOPTS) -c $<
+
+lsmtest$(EXE): $(LSMOBJ) $(LSMTESTSRC) $(LSMTESTHDR) sqlite3.o
+	# $(T.link) -c $(TOP)/lsm-test/lsmtest_tdb2.cc
+	$(T.link) $(LSMOPTS) $(LSMTESTSRC) $(LSMOBJ) sqlite3.o -o lsmtest$(EXE) $(THREADLIB) -lz
diff --git a/ext/lsm1/Makefile.msc b/ext/lsm1/Makefile.msc
new file mode 100644
index 0000000000000000000000000000000000000000..3e5a3b3310e66f75dbbb0624f13b1e416ee3f87f
--- /dev/null
+++ b/ext/lsm1/Makefile.msc
@@ -0,0 +1,102 @@
+#
+# This Makefile is designed for use with Makefile.msc in the root directory
+# of this project.  The Makefile.msc should contain:
+#
+#    LSMDIR=$(TOP)\ext\lsm1
+#    !INCLUDE $(LSMDIR)\Makefile.msc
+#
+# The most useful targets are [lsmtest.exe] and [lsm.dll].
+#
+
+LSMOBJ    = \
+  lsm_ckpt.lo \
+  lsm_file.lo \
+  lsm_log.lo \
+  lsm_main.lo \
+  lsm_mem.lo \
+  lsm_mutex.lo \
+  lsm_shared.lo \
+  lsm_sorted.lo \
+  lsm_str.lo \
+  lsm_tree.lo \
+  lsm_unix.lo \
+  lsm_win32.lo \
+  lsm_varint.lo \
+  lsm_vtab.lo
+
+LSMHDR   = \
+  $(LSMDIR)\lsm.h \
+  $(LSMDIR)\lsmInt.h
+
+LSMTESTSRC = $(LSMDIR)\lsm-test\lsmtest1.c $(LSMDIR)\lsm-test\lsmtest2.c     \
+             $(LSMDIR)\lsm-test\lsmtest3.c $(LSMDIR)\lsm-test\lsmtest4.c     \
+             $(LSMDIR)\lsm-test\lsmtest5.c $(LSMDIR)\lsm-test\lsmtest6.c     \
+             $(LSMDIR)\lsm-test\lsmtest7.c $(LSMDIR)\lsm-test\lsmtest8.c     \
+             $(LSMDIR)\lsm-test\lsmtest9.c                                   \
+             $(LSMDIR)\lsm-test\lsmtest_datasource.c \
+             $(LSMDIR)\lsm-test\lsmtest_func.c $(LSMDIR)\lsm-test\lsmtest_io.c  \
+             $(LSMDIR)\lsm-test\lsmtest_main.c $(LSMDIR)\lsm-test\lsmtest_mem.c \
+             $(LSMDIR)\lsm-test\lsmtest_tdb.c $(LSMDIR)\lsm-test\lsmtest_tdb3.c \
+             $(LSMDIR)\lsm-test\lsmtest_util.c $(LSMDIR)\lsm-test\lsmtest_win32.c
+
+# all: lsm.dll lsmtest.exe
+
+LSMOPTS = $(NO_WARN) -DLSM_MUTEX_WIN32=1 -I$(LSMDIR)
+
+!IF $(DEBUG)>2
+LSMOPTS = $(LSMOPTS) -DLSM_DEBUG=1
+!ENDIF
+
+!IF $(MEMDEBUG)!=0
+LSMOPTS = $(LSMOPTS) -DLSM_DEBUG_MEM=1
+!ENDIF
+
+lsm_ckpt.lo:	$(LSMDIR)\lsm_ckpt.c $(LSMHDR) $(SQLITE3H)
+	$(LTCOMPILE) $(LSMOPTS) -c $(LSMDIR)\lsm_ckpt.c
+
+lsm_file.lo:	$(LSMDIR)\lsm_file.c $(LSMHDR) $(SQLITE3H)
+	$(LTCOMPILE) $(LSMOPTS) -c $(LSMDIR)\lsm_file.c
+
+lsm_log.lo:	$(LSMDIR)\lsm_log.c $(LSMHDR) $(SQLITE3H)
+	$(LTCOMPILE) $(LSMOPTS) -c $(LSMDIR)\lsm_log.c
+
+lsm_main.lo:	$(LSMDIR)\lsm_main.c $(LSMHDR) $(SQLITE3H)
+	$(LTCOMPILE) $(LSMOPTS) -c $(LSMDIR)\lsm_main.c
+
+lsm_mem.lo:	$(LSMDIR)\lsm_mem.c $(LSMHDR) $(SQLITE3H)
+	$(LTCOMPILE) $(LSMOPTS) -c $(LSMDIR)\lsm_mem.c
+
+lsm_mutex.lo:	$(LSMDIR)\lsm_mutex.c $(LSMHDR) $(SQLITE3H)
+	$(LTCOMPILE) $(LSMOPTS) -c $(LSMDIR)\lsm_mutex.c
+
+lsm_shared.lo:	$(LSMDIR)\lsm_shared.c $(LSMHDR) $(SQLITE3H)
+	$(LTCOMPILE) $(LSMOPTS) -c $(LSMDIR)\lsm_shared.c
+
+lsm_sorted.lo:	$(LSMDIR)\lsm_sorted.c $(LSMHDR) $(SQLITE3H)
+	$(LTCOMPILE) $(LSMOPTS) -c $(LSMDIR)\lsm_sorted.c
+
+lsm_str.lo:	$(LSMDIR)\lsm_str.c $(LSMHDR) $(SQLITE3H)
+	$(LTCOMPILE) $(LSMOPTS) -c $(LSMDIR)\lsm_str.c
+
+lsm_tree.lo:	$(LSMDIR)\lsm_tree.c $(LSMHDR) $(SQLITE3H)
+	$(LTCOMPILE) $(LSMOPTS) -c $(LSMDIR)\lsm_tree.c
+
+lsm_unix.lo:	$(LSMDIR)\lsm_unix.c $(LSMHDR) $(SQLITE3H)
+	$(LTCOMPILE) $(LSMOPTS) -c $(LSMDIR)\lsm_unix.c
+
+lsm_win32.lo:	$(LSMDIR)\lsm_win32.c $(LSMHDR) $(SQLITE3H)
+	$(LTCOMPILE) $(LSMOPTS) -c $(LSMDIR)\lsm_win32.c
+
+lsm_varint.lo:	$(LSMDIR)\lsm_varint.c $(LSMHDR) $(SQLITE3H)
+	$(LTCOMPILE) $(LSMOPTS) -c $(LSMDIR)\lsm_varint.c
+
+lsm_vtab.lo:	$(LSMDIR)\lsm_vtab.c $(LSMHDR) $(SQLITE3H)
+	$(LTCOMPILE) $(LSMOPTS) -c $(LSMDIR)\lsm_vtab.c
+
+lsm.dll:	$(LSMOBJ)
+	$(LD) $(LDFLAGS) $(LTLINKOPTS) $(LTLIBPATHS) /DLL /OUT:$@ $(LSMOBJ)
+	copy /Y $@ $(LSMDIR)\$@
+
+lsmtest.exe: $(LSMOBJ) $(LSMTESTSRC) $(LSMTESTHDR) $(LIBOBJ)
+	$(LTLINK) $(LSMOPTS) $(LSMTESTSRC) /link $(LSMOBJ) $(LIBOBJ)
+	copy /Y $@ $(LSMDIR)\$@
diff --git a/ext/lsm1/lsm-test/README b/ext/lsm1/lsm-test/README
new file mode 100644
index 0000000000000000000000000000000000000000..80654ee97ec12f3a935a1b28a6dac600e8098335
--- /dev/null
+++ b/ext/lsm1/lsm-test/README
@@ -0,0 +1,40 @@
+
+
+Organization of test case files:
+
+  lsmtest1.c: Data tests. Tests that perform many inserts and deletes on a 
+              database file, then verify that the contents of the database can
+              be queried.
+
+  lsmtest2.c: Crash tests. Tests that attempt to verify that the database 
+              recovers correctly following an application or system crash.
+
+  lsmtest3.c: Rollback tests. Tests that focus on the explicit rollback of
+              transactions and sub-transactions.
+
+  lsmtest4.c: Multi-client tests.
+
+  lsmtest5.c: Multi-client tests with a different thread for each client.
+
+  lsmtest6.c: OOM injection tests.
+
+  lsmtest7.c: API tests.
+
+  lsmtest8.c: Writer crash tests. Tests in this file attempt to verify that
+              the system recovers and other clients proceed unaffected if
+              a process fails in the middle of a write transaction.
+
+              The difference from lsmtest2.c is that this file tests
+              live-recovery (recovery from a failure that occurs while other
+              clients are still running) whereas lsmtest2.c tests recovery
+              from a system or power failure.
+
+  lsmtest9.c: More data tests. These focus on testing that calling
+              lsm_work(nMerge=1) to compact the database does not corrupt it.
+              In other words, that databases containing block-redirects
+              can be read and written.
+
+
+
+
+
diff --git a/ext/lsm1/lsm-test/lsmtest.h b/ext/lsm1/lsm-test/lsmtest.h
new file mode 100644
index 0000000000000000000000000000000000000000..ca60424adde9a60bcfd90acce739db44908c0338
--- /dev/null
+++ b/ext/lsm1/lsm-test/lsmtest.h
@@ -0,0 +1,303 @@
+
+#ifndef __WRAPPER_INT_H_
+#define __WRAPPER_INT_H_
+
+#include "lsmtest_tdb.h"
+#include "sqlite3.h"
+#include "lsm.h"
+
+#include <assert.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#ifndef _WIN32
+# include <unistd.h>
+#endif
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <errno.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef _WIN32
+# include "windows.h"
+# define gettimeofday win32GetTimeOfDay
+# define F_OK  (0)
+# define sleep(sec) Sleep(1000 * (sec))
+# define usleep(usec) Sleep(((usec) + 999) / 1000)
+# ifdef _MSC_VER
+#  include <io.h>
+#  define snprintf _snprintf
+#  define fsync(fd) FlushFileBuffers((HANDLE)_get_osfhandle((fd)))
+#  define fdatasync(fd) FlushFileBuffers((HANDLE)_get_osfhandle((fd)))
+#  define __va_copy(dst,src) ((dst) = (src))
+#  define ftruncate(fd,sz) ((_chsize_s((fd), (sz))==0) ? 0 : -1)
+# else
+#  error Unsupported C compiler for Windows.
+# endif
+int win32GetTimeOfDay(struct timeval *, void *);
+#endif
+
+#ifndef _LSM_INT_H
+typedef unsigned int  u32;
+typedef unsigned char u8;
+typedef long long int i64;
+typedef unsigned long long int u64;
+#endif
+
+
+#define ArraySize(x) ((int)(sizeof(x) / sizeof((x)[0])))
+
+#define MIN(x,y) ((x)<(y) ? (x) : (y))
+#define MAX(x,y) ((x)>(y) ? (x) : (y))
+
+#define unused_parameter(x) (void)(x)
+
+#define TESTDB_DEFAULT_PAGE_SIZE   4096
+#define TESTDB_DEFAULT_CACHE_SIZE  2048
+
+#ifndef _O_BINARY
+# define _O_BINARY (0)
+#endif
+
+/*
+** Ideally, these should be in wrapper.c. But they are here instead so that 
+** they can be used by the C++ database wrappers in wrapper2.cc.
+*/
+typedef struct DatabaseMethods DatabaseMethods;
+struct TestDb {
+  DatabaseMethods const *pMethods;          /* Database methods */
+  const char *zLibrary;                     /* Library name for tdb_open() */
+};
+struct DatabaseMethods {
+  int (*xClose)(TestDb *);
+  int (*xWrite)(TestDb *, void *, int , void *, int);
+  int (*xDelete)(TestDb *, void *, int);
+  int (*xDeleteRange)(TestDb *, void *, int, void *, int);
+  int (*xFetch)(TestDb *, void *, int, void **, int *);
+  int (*xScan)(TestDb *, void *, int, void *, int, void *, int,
+    void (*)(void *, void *, int , void *, int)
+  );
+  int (*xBegin)(TestDb *, int);
+  int (*xCommit)(TestDb *, int);
+  int (*xRollback)(TestDb *, int);
+};
+
+/* 
+** Functions in wrapper2.cc (a C++ source file). wrapper2.cc contains the
+** wrapper for Kyoto Cabinet. Kyoto cabinet has a C API, but
+** the primary interface is the C++ API.
+*/
+int test_kc_open(const char*, const char *zFilename, int bClear, TestDb **ppDb);
+int test_kc_close(TestDb *);
+int test_kc_write(TestDb *, void *, int , void *, int);
+int test_kc_delete(TestDb *, void *, int);
+int test_kc_delete_range(TestDb *, void *, int, void *, int);
+int test_kc_fetch(TestDb *, void *, int, void **, int *);
+int test_kc_scan(TestDb *, void *, int, void *, int, void *, int,
+  void (*)(void *, void *, int , void *, int)
+);
+
+int test_mdb_open(const char*, const char *zFile, int bClear, TestDb **ppDb);
+int test_mdb_close(TestDb *);
+int test_mdb_write(TestDb *, void *, int , void *, int);
+int test_mdb_delete(TestDb *, void *, int);
+int test_mdb_fetch(TestDb *, void *, int, void **, int *);
+int test_mdb_scan(TestDb *, void *, int, void *, int, void *, int,
+  void (*)(void *, void *, int , void *, int)
+);
+
+/* 
+** Functions in wrapper3.c. This file contains the tdb wrapper for lsm.
+** The wrapper for lsm is a bit more involved than the others, as it 
+** includes code for a couple of different lsm configurations, and for
+** various types of fault injection and robustness testing.
+*/
+int test_lsm_open(const char*, const char *zFile, int bClear, TestDb **ppDb);
+int test_lsm_lomem_open(const char*, const char*, int bClear, TestDb **ppDb);
+int test_lsm_lomem2_open(const char*, const char*, int bClear, TestDb **ppDb);
+int test_lsm_zip_open(const char*, const char*, int bClear, TestDb **ppDb);
+int test_lsm_small_open(const char*, const char*, int bClear, TestDb **ppDb);
+int test_lsm_mt2(const char*, const char *zFile, int bClear, TestDb **ppDb);
+int test_lsm_mt3(const char*, const char *zFile, int bClear, TestDb **ppDb);
+
+int tdb_lsm_configure(lsm_db *, const char *);
+
+/* Functions in lsmtest_tdb4.c */
+int test_bt_open(const char*, const char *zFile, int bClear, TestDb **ppDb);
+int test_fbt_open(const char*, const char *zFile, int bClear, TestDb **ppDb);
+int test_fbts_open(const char*, const char *zFile, int bClear, TestDb **ppDb);
+
+
+/* Functions in testutil.c. */
+int  testPrngInit(void);
+u32  testPrngValue(u32 iVal);
+void testPrngArray(u32 iVal, u32 *aOut, int nOut);
+void testPrngString(u32 iVal, char *aOut, int nOut);
+
+void testErrorInit(int argc, char **);
+void testPrintError(const char *zFormat, ...);
+void testPrintUsage(const char *zArgs);
+void testPrintFUsage(const char *zFormat, ...);
+void testTimeInit(void);
+int  testTimeGet(void);
+
+/* Functions in testmem.c. */
+void testMallocInstall(lsm_env *pEnv);
+void testMallocUninstall(lsm_env *pEnv);
+void testMallocCheck(lsm_env *pEnv, int *, int *, FILE *);
+void testMallocOom(lsm_env *pEnv, int, int, void(*)(void*), void *);
+void testMallocOomEnable(lsm_env *pEnv, int);
+
+/* lsmtest.c */
+TestDb *testOpen(const char *zSystem, int, int *pRc);
+void testReopen(TestDb **ppDb, int *pRc);
+void testClose(TestDb **ppDb);
+
+void testFetch(TestDb *, void *, int, void *, int, int *);
+void testWrite(TestDb *, void *, int, void *, int, int *);
+void testDelete(TestDb *, void *, int, int *);
+void testDeleteRange(TestDb *, void *, int, void *, int, int *);
+void testWriteStr(TestDb *, const char *, const char *zVal, int *pRc);
+void testFetchStr(TestDb *, const char *, const char *, int *pRc);
+
+void testBegin(TestDb *pDb, int iTrans, int *pRc);
+void testCommit(TestDb *pDb, int iTrans, int *pRc);
+
+void test_failed(void);
+
+char *testMallocPrintf(const char *zFormat, ...);
+char *testMallocVPrintf(const char *zFormat, va_list ap);
+int testGlobMatch(const char *zPattern, const char *zStr);
+
+void testScanCompare(TestDb *, TestDb *, int, void *, int, void *, int, int *);
+void testFetchCompare(TestDb *, TestDb *, void *, int, int *);
+
+void *testMalloc(int);
+void *testMallocCopy(void *pCopy, int nByte);
+void *testRealloc(void *, int);
+void testFree(void *);
+
+/* lsmtest_bt.c */
+int do_bt(int nArg, char **azArg);
+
+/* testio.c */
+int testVfsConfigureDb(TestDb *pDb);
+
+/* testfunc.c */
+int do_show(int nArg, char **azArg);
+int do_work(int nArg, char **azArg);
+
+/* testio.c */
+int do_io(int nArg, char **azArg);
+
+/* lsmtest2.c */
+void do_crash_test(const char *zPattern, int *pRc);
+int do_rollback_test(int nArg, char **azArg);
+
+/* test3.c */
+void test_rollback(const char *zSystem, const char *zPattern, int *pRc);
+
+/* test4.c */
+void test_mc(const char *zSystem, const char *zPattern, int *pRc);
+
+/* test5.c */
+void test_mt(const char *zSystem, const char *zPattern, int *pRc);
+
+/* lsmtest6.c */
+void test_oom(const char *zPattern, int *pRc);
+void testDeleteLsmdb(const char *zFile);
+
+void testSaveDb(const char *zFile, const char *zAuxExt);
+void testRestoreDb(const char *zFile, const char *zAuxExt);
+void testCopyLsmdb(const char *zFrom, const char *zTo);
+
+/* lsmtest7.c */
+void test_api(const char *zPattern, int *pRc);
+
+/* lsmtest8.c */
+void do_writer_crash_test(const char *zPattern, int *pRc);
+
+/*************************************************************************
+** Interface to functionality in test_datasource.c.
+*/
+typedef struct Datasource Datasource;
+typedef struct DatasourceDefn DatasourceDefn;
+
+struct DatasourceDefn {
+  int eType;                      /* A TEST_DATASOURCE_* value */
+  int nMinKey;                    /* Minimum key size */
+  int nMaxKey;                    /* Maximum key size */
+  int nMinVal;                    /* Minimum value size */
+  int nMaxVal;                    /* Maximum value size */
+};
+
+#define TEST_DATASOURCE_RANDOM    1
+#define TEST_DATASOURCE_SEQUENCE  2
+
+char *testDatasourceName(const DatasourceDefn *);
+Datasource *testDatasourceNew(const DatasourceDefn *);
+void testDatasourceFree(Datasource *);
+void testDatasourceEntry(Datasource *, int, void **, int *, void **, int *);
+/* End of test_datasource.c interface.
+*************************************************************************/
+void testDatasourceFetch(
+  TestDb *pDb,                    /* Database handle */
+  Datasource *pData,
+  int iKey,
+  int *pRc                        /* IN/OUT: Error code */
+);
+
+void testWriteDatasource(TestDb *, Datasource *, int, int *);
+void testWriteDatasourceRange(TestDb *, Datasource *, int, int, int *);
+void testDeleteDatasource(TestDb *, Datasource *, int, int *);
+void testDeleteDatasourceRange(TestDb *, Datasource *, int, int, int *);
+
+
+/* test1.c */
+void test_data_1(const char *, const char *, int *pRc);
+void test_data_2(const char *, const char *, int *pRc);
+void test_data_3(const char *, const char *, int *pRc);
+void testDbContents(TestDb *, Datasource *, int, int, int, int, int, int *);
+void testCaseProgress(int, int, int, int *);
+int testCaseNDot(void);
+
+void testCompareDb(Datasource *, int, int, TestDb *, TestDb *, int *);
+int testControlDb(TestDb **ppDb);
+
+typedef struct CksumDb CksumDb;
+CksumDb *testCksumArrayNew(Datasource *, int, int, int);
+char *testCksumArrayGet(CksumDb *, int);
+void testCksumArrayFree(CksumDb *);
+void testCaseStart(int *pRc, char *zFmt, ...);
+void testCaseFinish(int rc);
+void testCaseSkip(void);
+int testCaseBegin(int *, const char *, const char *, ...);
+
+#define TEST_CKSUM_BYTES 29
+int testCksumDatabase(TestDb *pDb, char *zOut);
+int testCountDatabase(TestDb *pDb);
+void testCompareInt(int, int, int *);
+void testCompareStr(const char *z1, const char *z2, int *pRc);
+
+/* lsmtest9.c */
+void test_data_4(const char *, const char *, int *pRc);
+
+
+/*
+** Similar to the Tcl_GetIndexFromObjStruct() Tcl library function.
+*/
+#define testArgSelect(w,x,y,z) testArgSelectX(w,x,sizeof(w[0]),y,z)
+int testArgSelectX(void *, const char *, int, const char *, int *);
+
+#ifdef __cplusplus
+}  /* End of the 'extern "C"' block */
+#endif
+
+#endif
diff --git a/ext/lsm1/lsm-test/lsmtest1.c b/ext/lsm1/lsm-test/lsmtest1.c
new file mode 100644
index 0000000000000000000000000000000000000000..1ce2cc05881093b8dd9dc784c39c1da4e0685f23
--- /dev/null
+++ b/ext/lsm1/lsm-test/lsmtest1.c
@@ -0,0 +1,656 @@
+
+#include "lsmtest.h"
+
+#define DATA_SEQUENTIAL TEST_DATASOURCE_SEQUENCE
+#define DATA_RANDOM     TEST_DATASOURCE_RANDOM
+
+typedef struct Datatest1 Datatest1;
+typedef struct Datatest2 Datatest2;
+
+/*
+** An instance of the following structure contains parameters used to
+** customize the test function in this file. Test procedure:
+**
+**   1. Create a data-source based on the "datasource definition" vars.
+**
+**   2. Insert nRow key value pairs into the database.
+**
+**   3. Delete all keys from the database. Deletes are done in the same 
+**      order as the inserts.
+**
+** During steps 2 and 3 above, after each Datatest1.nVerify inserts or
+** deletes, the following:
+**
+**   a. Run Datasource.nTest key lookups and check the results are as expected.
+**
+**   b. If Datasource.bTestScan is true, run a handful (8) of range
+**      queries (scanning forwards and backwards). Check that the results
+**      are as expected.
+**
+**   c. Close and reopen the database. Then run (a) and (b) again.
+*/
+struct Datatest1 {
+  /* Datasource definition */
+  DatasourceDefn defn;
+
+  /* Test procedure parameters */
+  int nRow;                       /* Number of rows to insert then delete */
+  int nVerify;                    /* How often to verify the db contents */
+  int nTest;                      /* Number of keys to test (0==all) */
+  int bTestScan;                  /* True to do scan tests */
+};
+
+/*
+** An instance of the following data structure is used to describe the
+** second type of test case in this file. The chief difference between 
+** these tests and those described by Datatest1 is that these tests also
+** experiment with range-delete operations. Tests proceed as follows:
+**
+**     1. Open the datasource described by Datatest2.defn. 
+**
+**     2. Open a connection on an empty database.
+**
+**     3. Do this Datatest2.nIter times:
+**
+**        a) Insert Datatest2.nWrite key-value pairs from the datasource.
+**
+**        b) Select two pseudo-random keys and use them as the start
+**           and end points of a range-delete operation.
+**
+**        c) Verify that the contents of the database are as expected (see
+**           below for details).
+**
+**        d) Close and then reopen the database handle.
+**
+**        e) Verify that the contents of the database are still as expected.
+**
+** The inserts and range deletes are run twice - once on the database being
+** tested and once using a control system (sqlite3, kc etc. - something that 
+** works). In order to verify that the contents of the db being tested are
+** correct, the test runs a bunch of scans and lookups on both the test and
+** control databases. If the results are the same, the test passes.
+*/
+struct Datatest2 {
+  DatasourceDefn defn;
+  int nRange;
+  int nWrite;                     /* Number of writes per iteration */
+  int nIter;                      /* Total number of iterations to run */
+};
+
+/*
+** Generate a unique name for the test case pTest with database system
+** zSystem.
+*/
+static char *getName(const char *zSystem, int bRecover, Datatest1 *pTest){
+  char *zRet;
+  char *zData;
+  zData = testDatasourceName(&pTest->defn);
+  zRet = testMallocPrintf("data.%s.%s.rec=%d.%d.%d", 
+      zSystem, zData, bRecover, pTest->nRow, pTest->nVerify
+  );
+  testFree(zData);
+  return zRet;
+}
+
+int testControlDb(TestDb **ppDb){
+#ifdef HAVE_KYOTOCABINET
+  return tdb_open("kyotocabinet", "tmp.db", 1, ppDb);
+#else
+  return tdb_open("sqlite3", "", 1, ppDb);
+#endif
+}
+
+void testDatasourceFetch(
+  TestDb *pDb,                    /* Database handle */
+  Datasource *pData,
+  int iKey,
+  int *pRc                        /* IN/OUT: Error code */
+){
+  void *pKey; int nKey;           /* Database key to query for */
+  void *pVal; int nVal;           /* Expected result of query */
+
+  testDatasourceEntry(pData, iKey, &pKey, &nKey, &pVal, &nVal);
+  testFetch(pDb, pKey, nKey, pVal, nVal, pRc);
+}
+
+/*
+** This function is called to test that the contents of database pDb
+** are as expected. In this case, expected is defined as containing
+** key-value pairs iFirst through iLast, inclusive, from data source 
+** pData. In other words, a loop like the following could be used to
+** construct a database with identical contents from scratch.
+**
+**   for(i=iFirst; i<=iLast; i++){
+**     testDatasourceEntry(pData, i, &pKey, &nKey, &pVal, &nVal);
+**     // insert (pKey, nKey) -> (pVal, nVal) into database
+**   }
+**
+** The key domain consists of keys 0 to (nRow-1), inclusive, from
+** data source pData. For both scan and lookup tests, keys are selected
+** pseudo-randomly from within this set.
+**
+** This function runs nLookupTest lookup tests and nScanTest scan tests.
+**
+** A lookup test consists of selecting a key from the domain and querying
+** pDb for it. The test fails if the presence of the key and, if present,
+** the associated value do not match the expectations defined above.
+**
+** A scan test involves selecting a key from the domain and running
+** the following queries:
+**
+**   1. Scan all keys equal to or greater than the key, in ascending order.
+**   2. Scan all keys equal to or smaller than the key, in descending order.
+**
+** Additionally, if nLookupTest is greater than zero, the following are
+** run once:
+**
+**   1. Scan all keys in the db, in ascending order.
+**   2. Scan all keys in the db, in descending order.
+**
+** As you would assume, the test fails if the returned values do not match
+** expectations.
+*/
+void testDbContents(
+  TestDb *pDb,                    /* Database handle being tested */
+  Datasource *pData,              /* pDb contains data from here */
+  int nRow,                       /* Size of key domain */
+  int iFirst,                     /* Index of first key from pData in pDb */
+  int iLast,                      /* Index of last key from pData in pDb */
+  int nLookupTest,                /* Number of lookup tests to run */
+  int nScanTest,                  /* Number of scan tests to run */
+  int *pRc                        /* IN/OUT: Error code */
+){
+  int j;
+  int rc = *pRc;
+
+  if( rc==0 && nScanTest ){
+    TestDb *pDb2 = 0;
+
+    /* Open a control db (i.e. one that we assume works) */
+    rc = testControlDb(&pDb2);
+
+    for(j=iFirst; rc==0 && j<=iLast; j++){
+      void *pKey; int nKey;         /* Database key to insert */
+      void *pVal; int nVal;         /* Database value to insert */
+      testDatasourceEntry(pData, j, &pKey, &nKey, &pVal, &nVal);
+      rc = tdb_write(pDb2, pKey, nKey, pVal, nVal);
+    }
+
+    if( rc==0 ){
+      int iKey1;
+      int iKey2;
+      void *pKey1; int nKey1;       /* Start key */
+      void *pKey2; int nKey2;       /* Final key */
+
+      iKey1 = testPrngValue((iFirst<<8) + (iLast<<16)) % nRow;
+      iKey2 = testPrngValue((iLast<<8) + (iFirst<<16)) % nRow;
+      testDatasourceEntry(pData, iKey1, &pKey2, &nKey1, 0, 0);
+      pKey1 = testMalloc(nKey1+1);
+      memcpy(pKey1, pKey2, nKey1+1);
+      testDatasourceEntry(pData, iKey2, &pKey2, &nKey2, 0, 0);
+
+      testScanCompare(pDb2, pDb, 0, 0, 0,         0, 0,         &rc);
+      testScanCompare(pDb2, pDb, 0, 0, 0,         pKey2, nKey2, &rc);
+      testScanCompare(pDb2, pDb, 0, pKey1, nKey1, 0, 0,         &rc);
+      testScanCompare(pDb2, pDb, 0, pKey1, nKey1, pKey2, nKey2, &rc);
+      testScanCompare(pDb2, pDb, 1, 0, 0,         0, 0,         &rc);
+      testScanCompare(pDb2, pDb, 1, 0, 0,         pKey2, nKey2, &rc);
+      testScanCompare(pDb2, pDb, 1, pKey1, nKey1, 0, 0,         &rc);
+      testScanCompare(pDb2, pDb, 1, pKey1, nKey1, pKey2, nKey2, &rc);
+      testFree(pKey1);
+    }
+    tdb_close(pDb2);
+  }
+
+  /* Test some lookups. */
+  for(j=0; rc==0 && j<nLookupTest; j++){
+    int iKey;                     /* Datasource key to test */
+    void *pKey; int nKey;         /* Database key to query for */
+    void *pVal; int nVal;         /* Expected result of query */
+
+    if( nLookupTest>=nRow ){
+      iKey = j;
+    }else{
+      iKey = testPrngValue(j + (iFirst<<8) + (iLast<<16)) % nRow;
+    }
+
+    testDatasourceEntry(pData, iKey, &pKey, &nKey, &pVal, &nVal);
+    if( iFirst>iKey || iKey>iLast ){
+      pVal = 0;
+      nVal = -1;
+    }
+
+    testFetch(pDb, pKey, nKey, pVal, nVal, &rc);
+  }
+
+  *pRc = rc;
+}
+
+/*
+** This function should be called during long running test cases to output
+** the progress dots (...) to stdout.
+*/
+void testCaseProgress(int i, int n, int nDot, int *piDot){
+  int iDot = *piDot;
+  while( iDot < ( ((nDot*2+1) * i) / (n*2) ) ){
+    printf(".");
+    fflush(stdout);
+    iDot++;
+  }
+  *piDot = iDot;
+}
+
+int testCaseNDot(void){ return 20; }
+
+#if 0
+static void printScanCb(
+    void *pCtx, void *pKey, int nKey, void *pVal, int nVal
+){
+  printf("%s\n", (char *)pKey);
+  fflush(stdout);
+}
+#endif
+
+void testReopenRecover(TestDb **ppDb, int *pRc){
+  if( *pRc==0 ){
+    const char *zLib = tdb_library_name(*ppDb);
+    const char *zDflt = tdb_default_db(zLib);
+    testCopyLsmdb(zDflt, "bak.db");
+    testClose(ppDb);
+    testCopyLsmdb("bak.db", zDflt);
+    *pRc = tdb_open(zLib, 0, 0, ppDb);
+  }
+}
+
+
+static void doDataTest1(
+  const char *zSystem,            /* Database system to test */
+  int bRecover,
+  Datatest1 *p,                   /* Structure containing test parameters */
+  int *pRc                        /* OUT: Error code */
+){
+  int i;
+  int iDot;
+  int rc = LSM_OK;
+  Datasource *pData;
+  TestDb *pDb;
+  int iToggle = 0;
+
+  /* Start the test case, open a database and allocate the datasource. */
+  pDb = testOpen(zSystem, 1, &rc);
+  pData = testDatasourceNew(&p->defn);
+
+  i = 0;
+  iDot = 0;
+  while( rc==LSM_OK && i<p->nRow ){
+
+    /* Insert some data */
+    testWriteDatasourceRange(pDb, pData, i, p->nVerify, &rc);
+    i += p->nVerify;
+
+    if( iToggle ) testBegin(pDb, 1, &rc);
+    /* Check that the db content is correct. */
+    testDbContents(pDb, pData, p->nRow, 0, i-1, p->nTest, p->bTestScan, &rc);
+    if( iToggle ) testCommit(pDb, 0, &rc);
+    iToggle = (iToggle+1)%2;
+
+    if( bRecover ){
+      testReopenRecover(&pDb, &rc);
+    }else{
+      testReopen(&pDb, &rc);
+    }
+
+    /* Check that the db content is still correct. */
+    testDbContents(pDb, pData, p->nRow, 0, i-1, p->nTest, p->bTestScan, &rc);
+
+    /* Update the progress dots... */
+    testCaseProgress(i, p->nRow, testCaseNDot()/2, &iDot);
+  }
+
+  i = 0;
+  iDot = 0;
+  while( rc==LSM_OK && i<p->nRow ){
+
+    /* Delete some entries */
+    testDeleteDatasourceRange(pDb, pData, i, p->nVerify, &rc);
+    i += p->nVerify;
+
+    /* Check that the db content is correct. */
+    testDbContents(pDb, pData, p->nRow, i, p->nRow-1,p->nTest,p->bTestScan,&rc);
+
+    /* Close and reopen the database. */
+    if( bRecover ){
+      testReopenRecover(&pDb, &rc);
+    }else{
+      testReopen(&pDb, &rc);
+    }
+
+    /* Check that the db content is still correct. */
+    testDbContents(pDb, pData, p->nRow, i, p->nRow-1,p->nTest,p->bTestScan,&rc);
+
+    /* Update the progress dots... */
+    testCaseProgress(i, p->nRow, testCaseNDot()/2, &iDot);
+  }
+
+  /* Free the datasource, close the database and finish the test case. */
+  testDatasourceFree(pData);
+  tdb_close(pDb);
+  testCaseFinish(rc);
+  *pRc = rc;
+}
+
+
+void test_data_1(
+  const char *zSystem,            /* Database system name */
+  const char *zPattern,           /* Run test cases that match this pattern */
+  int *pRc                        /* IN/OUT: Error code */
+){
+  Datatest1 aTest[] = {
+    { {DATA_RANDOM,     500,600,   1000,2000},     1000,  100,  10,  0},
+    { {DATA_RANDOM,     20,25,     100,200},       1000,  250, 1000, 1},
+    { {DATA_RANDOM,     8,10,      100,200},       1000,  250, 1000, 1},
+    { {DATA_RANDOM,     8,10,      10,20},         1000,  250, 1000, 1},
+    { {DATA_RANDOM,     8,10,      1000,2000},     1000,  250, 1000, 1},
+    { {DATA_RANDOM,     8,100,     10000,20000},    100,   25,  100, 1},
+    { {DATA_RANDOM,     80,100,    10,20},         1000,  250, 1000, 1},
+    { {DATA_RANDOM,     5000,6000, 10,20},          100,   25,  100, 1},
+    { {DATA_SEQUENTIAL, 5,10,      10,20},         1000,  250, 1000, 1},
+    { {DATA_SEQUENTIAL, 5,10,      100,200},       1000,  250, 1000, 1},
+    { {DATA_SEQUENTIAL, 5,10,      1000,2000},     1000,  250, 1000, 1},
+    { {DATA_SEQUENTIAL, 5,100,     10000,20000},    100,   25,  100, 1},
+    { {DATA_RANDOM,     10,10,     100,100},     100000, 1000,  100, 0},
+    { {DATA_SEQUENTIAL, 10,10,     100,100},     100000, 1000,  100, 0},
+  };
+
+  int i;
+  int bRecover;
+
+  for(bRecover=0; bRecover<2; bRecover++){
+    if( bRecover==1 && memcmp(zSystem, "lsm", 3) ) break;
+    for(i=0; *pRc==LSM_OK && i<ArraySize(aTest); i++){
+      char *zName = getName(zSystem, bRecover, &aTest[i]);
+      if( testCaseBegin(pRc, zPattern, "%s", zName) ){
+        doDataTest1(zSystem, bRecover, &aTest[i], pRc);
+      }
+      testFree(zName);
+    }
+  }
+}
+
+void testCompareDb(
+  Datasource *pData,
+  int nData,
+  int iSeed,
+  TestDb *pControl,
+  TestDb *pDb,
+  int *pRc
+){
+  int i;
+
+  static int nCall = 0;
+  nCall++;
+
+  testScanCompare(pControl, pDb, 0, 0, 0,         0, 0,         pRc);
+  testScanCompare(pControl, pDb, 1, 0, 0,         0, 0,         pRc);
+
+  if( *pRc==0 ){
+    int iKey1;
+    int iKey2;
+    void *pKey1; int nKey1;       /* Start key */
+    void *pKey2; int nKey2;       /* Final key */
+
+    iKey1 = testPrngValue(iSeed) % nData;
+    iKey2 = testPrngValue(iSeed+1) % nData;
+    testDatasourceEntry(pData, iKey1, &pKey2, &nKey1, 0, 0);
+    pKey1 = testMalloc(nKey1+1);
+    memcpy(pKey1, pKey2, nKey1+1);
+    testDatasourceEntry(pData, iKey2, &pKey2, &nKey2, 0, 0);
+
+    testScanCompare(pControl, pDb, 0, 0, 0,         pKey2, nKey2, pRc);
+    testScanCompare(pControl, pDb, 0, pKey1, nKey1, 0, 0,         pRc);
+    testScanCompare(pControl, pDb, 0, pKey1, nKey1, pKey2, nKey2, pRc);
+    testScanCompare(pControl, pDb, 1, 0, 0,         pKey2, nKey2, pRc);
+    testScanCompare(pControl, pDb, 1, pKey1, nKey1, 0, 0,         pRc);
+    testScanCompare(pControl, pDb, 1, pKey1, nKey1, pKey2, nKey2, pRc);
+    testFree(pKey1);
+  }
+
+  for(i=0; i<nData && *pRc==0; i++){
+    void *pKey; int nKey;
+    testDatasourceEntry(pData, i, &pKey, &nKey, 0, 0);
+    testFetchCompare(pControl, pDb, pKey, nKey, pRc);
+  }
+}
+
+static void doDataTest2(
+  const char *zSystem,            /* Database system to test */
+  int bRecover,
+  Datatest2 *p,                   /* Structure containing test parameters */
+  int *pRc                        /* OUT: Error code */
+){
+  TestDb *pDb;
+  TestDb *pControl;
+  Datasource *pData;
+  int i;
+  int rc = LSM_OK;
+  int iDot = 0;
+
+  /* Start the test case, open a database and allocate the datasource. */
+  pDb = testOpen(zSystem, 1, &rc);
+  pData = testDatasourceNew(&p->defn);
+  rc = testControlDb(&pControl);
+
+  if( tdb_lsm(pDb) ){
+    int nBuf = 32 * 1024 * 1024;
+    lsm_config(tdb_lsm(pDb), LSM_CONFIG_AUTOFLUSH, &nBuf);
+  }
+
+  for(i=0; rc==0 && i<p->nIter; i++){
+    void *pKey1; int nKey1;
+    void *pKey2; int nKey2;
+    int ii;
+    int nRange = MIN(p->nIter*p->nWrite, p->nRange);
+
+    for(ii=0; rc==0 && ii<p->nWrite; ii++){
+      int iKey = (i*p->nWrite + ii) % p->nRange;
+      testWriteDatasource(pControl, pData, iKey, &rc);
+      testWriteDatasource(pDb, pData, iKey, &rc);
+    }
+
+    testDatasourceEntry(pData, i+1000000, &pKey1, &nKey1, 0, 0);
+    pKey1 = testMallocCopy(pKey1, nKey1);
+    testDatasourceEntry(pData, i+2000000, &pKey2, &nKey2, 0, 0);
+
+    testDeleteRange(pDb, pKey1, nKey1, pKey2, nKey2, &rc);
+    testDeleteRange(pControl, pKey1, nKey1, pKey2, nKey2, &rc);
+    testFree(pKey1);
+
+    testCompareDb(pData, nRange, i, pControl, pDb, &rc);
+    if( bRecover ){
+      testReopenRecover(&pDb, &rc);
+    }else{
+      testReopen(&pDb, &rc);
+    }
+    testCompareDb(pData, nRange, i, pControl, pDb, &rc);
+
+    /* Update the progress dots... */
+    testCaseProgress(i, p->nIter, testCaseNDot(), &iDot);
+  }
+
+  testClose(&pDb);
+  testClose(&pControl);
+  testDatasourceFree(pData);
+  testCaseFinish(rc);
+  *pRc = rc;
+}
+
+static char *getName2(const char *zSystem, int bRecover, Datatest2 *pTest){
+  char *zRet;
+  char *zData;
+  zData = testDatasourceName(&pTest->defn);
+  zRet = testMallocPrintf("data2.%s.%s.rec=%d.%d.%d.%d", 
+      zSystem, zData, bRecover, pTest->nRange, pTest->nWrite, pTest->nIter
+  );
+  testFree(zData);
+  return zRet;
+}
+
+void test_data_2(
+  const char *zSystem,            /* Database system name */
+  const char *zPattern,           /* Run test cases that match this pattern */
+  int *pRc                        /* IN/OUT: Error code */
+){
+  Datatest2 aTest[] = {
+      /* defn,                                 nRange, nWrite, nIter */
+    { {DATA_RANDOM,     20,25,     100,200},   10000,  10,     50   },
+    { {DATA_RANDOM,     20,25,     100,200},   10000,  200,    50   },
+    { {DATA_RANDOM,     20,25,     100,200},   100,    10,     1000 },
+    { {DATA_RANDOM,     20,25,     100,200},   100,    200,    50   },
+  };
+
+  int i;
+  int bRecover;
+
+  for(bRecover=0; bRecover<2; bRecover++){
+    if( bRecover==1 && memcmp(zSystem, "lsm", 3) ) break;
+    for(i=0; *pRc==LSM_OK && i<ArraySize(aTest); i++){
+      char *zName = getName2(zSystem, bRecover, &aTest[i]);
+      if( testCaseBegin(pRc, zPattern, "%s", zName) ){
+        doDataTest2(zSystem, bRecover, &aTest[i], pRc);
+      }
+      testFree(zName);
+    }
+  }
+}
+
+/*************************************************************************
+** Test case data3.*
+*/
+
+typedef struct Datatest3 Datatest3;
+struct Datatest3 {
+  int nRange;                     /* Keys are between 1 and this value, incl. */
+  int nIter;                      /* Number of iterations */
+  int nWrite;                     /* Number of writes per iteration */
+  int nDelete;                    /* Number of deletes per iteration */
+
+  int nValMin;                    /* Minimum value size for writes */
+  int nValMax;                    /* Maximum value size for writes */
+};
+
+void testPutU32(u8 *aBuf, u32 iVal){
+  aBuf[0] = (iVal >> 24) & 0xFF;
+  aBuf[1] = (iVal >> 16) & 0xFF;
+  aBuf[2] = (iVal >>  8) & 0xFF;
+  aBuf[3] = (iVal >>  0) & 0xFF;
+}
+
+void dt3PutKey(u8 *aBuf, int iKey){
+  assert( iKey<100000 && iKey>=0 );
+  sprintf((char *)aBuf, "%.5d", iKey);
+}
+
+static void doDataTest3(
+  const char *zSystem,            /* Database system to test */
+  Datatest3 *p,                   /* Structure containing test parameters */
+  int *pRc                        /* OUT: Error code */
+){
+  int iDot = 0;
+  int rc = *pRc;
+  TestDb *pDb;
+  u8 *abPresent;                  /* Array of boolean */
+  char *aVal;                     /* Buffer to hold values */
+  int i;
+  u32 iSeq = 10;                  /* prng counter */
+
+  abPresent = (u8 *)testMalloc(p->nRange+1);
+  aVal = (char *)testMalloc(p->nValMax+1);
+  pDb = testOpen(zSystem, 1, &rc);
+
+  for(i=0; i<p->nIter && rc==0; i++){
+    int ii;
+
+    testCaseProgress(i, p->nIter, testCaseNDot(), &iDot);
+
+    /* Perform nWrite inserts */
+    for(ii=0; ii<p->nWrite; ii++){
+      u8 aKey[6];
+      u32 iKey;
+      int nVal;
+
+      iKey = (testPrngValue(iSeq++) % p->nRange) + 1;
+      nVal = (testPrngValue(iSeq++) % (p->nValMax - p->nValMin)) + p->nValMin;
+      testPrngString(testPrngValue(iSeq++), aVal, nVal);
+      dt3PutKey(aKey, iKey);
+
+      testWrite(pDb, aKey, sizeof(aKey)-1, aVal, nVal, &rc);
+      abPresent[iKey] = 1;
+    }
+
+    /* Perform nDelete deletes */
+    for(ii=0; ii<p->nDelete; ii++){
+      u8 aKey1[6];
+      u8 aKey2[6];
+      u32 iKey;
+
+      iKey = (testPrngValue(iSeq++) % p->nRange) + 1;
+      dt3PutKey(aKey1, iKey-1);
+      dt3PutKey(aKey2, iKey+1);
+
+      testDeleteRange(pDb, aKey1, sizeof(aKey1)-1, aKey2, sizeof(aKey2)-1, &rc);
+      abPresent[iKey] = 0;
+    }
+
+    testReopen(&pDb, &rc);
+
+    for(ii=1; rc==0 && ii<=p->nRange; ii++){
+      int nDbVal;
+      void *pDbVal;
+      u8 aKey[6];
+      int dbrc;
+
+      dt3PutKey(aKey, ii);
+      dbrc = tdb_fetch(pDb, aKey, sizeof(aKey)-1, &pDbVal, &nDbVal);
+      testCompareInt(0, dbrc, &rc);
+
+      if( abPresent[ii] ){
+        testCompareInt(1, (nDbVal>0), &rc);
+      }else{
+        testCompareInt(1, (nDbVal<0), &rc);
+      }
+    }
+  }
+
+  testClose(&pDb);
+  testCaseFinish(rc);
+  *pRc = rc;
+}
+
+static char *getName3(const char *zSystem, Datatest3 *p){
+  return testMallocPrintf("data3.%s.%d.%d.%d.%d.(%d..%d)",
+      zSystem, p->nRange, p->nIter, p->nWrite, p->nDelete, 
+      p->nValMin, p->nValMax
+  );
+}
+
+void test_data_3(
+  const char *zSystem,            /* Database system name */
+  const char *zPattern,           /* Run test cases that match this pattern */
+  int *pRc                        /* IN/OUT: Error code */
+){
+  Datatest3 aTest[] = {
+    /* nRange, nIter, nWrite, nDelete, nValMin, nValMax */
+    {  100,    1000,  5,      5,       50,      100 },
+    {  100,    1000,  2,      2,        5,       10 },
+  };
+
+  int i;
+
+  for(i=0; *pRc==LSM_OK && i<ArraySize(aTest); i++){
+    char *zName = getName3(zSystem, &aTest[i]);
+    if( testCaseBegin(pRc, zPattern, "%s", zName) ){
+      doDataTest3(zSystem, &aTest[i], pRc);
+    }
+    testFree(zName);
+  }
+}
diff --git a/ext/lsm1/lsm-test/lsmtest2.c b/ext/lsm1/lsm-test/lsmtest2.c
new file mode 100644
index 0000000000000000000000000000000000000000..d2ef0eb360b7f323b0c62e6f58b5d23ef2fa8b8e
--- /dev/null
+++ b/ext/lsm1/lsm-test/lsmtest2.c
@@ -0,0 +1,488 @@
+
+/*
+** This file contains tests related to recovery following application 
+** and system crashes (power failures) while writing to the database.
+*/
+
+#include "lsmtest.h"
+
+/*
+** Structure used by testCksumDatabase() to accumulate checksum values in.
+*/
+typedef struct Cksum Cksum;
+struct Cksum {
+  int nRow;
+  int cksum1;
+  int cksum2;
+};
+
+/*
+** tdb_scan() callback used by testCksumDatabase()
+*/
+static void scanCksumDb(
+  void *pCtx, 
+  void *pKey, int nKey,
+  void *pVal, int nVal
+){
+  Cksum *p = (Cksum *)pCtx;
+  int i;
+
+  p->nRow++;
+  for(i=0; i<nKey; i++){
+    p->cksum1 += ((u8 *)pKey)[i];
+    p->cksum2 += p->cksum1;
+  }
+  for(i=0; i<nVal; i++){
+    p->cksum1 += ((u8 *)pVal)[i];
+    p->cksum2 += p->cksum1;
+  }
+}
+
+/*
+** tdb_scan() callback used by testCountDatabase()
+*/
+static void scanCountDb(
+  void *pCtx, 
+  void *pKey, int nKey,
+  void *pVal, int nVal
+){
+  Cksum *p = (Cksum *)pCtx;
+  p->nRow++;
+
+  unused_parameter(pKey);
+  unused_parameter(nKey);
+  unused_parameter(pVal);
+  unused_parameter(nVal);
+}
+
+
+/*
+** Iterate through the entire contents of database pDb. Write a checksum
+** string based on the db contents into buffer zOut before returning. A
+** checksum string is at most 29 (TEST_CKSUM_BYTES) bytes in size:
+**
+**    * 32-bit integer (10 bytes)
+**    * 1 space        (1 byte)
+**    * 32-bit hex     (8 bytes)
+**    * 1 space        (1 byte)
+**    * 32-bit hex     (8 bytes)
+**    * nul-terminator (1 byte)
+**
+** The number of entries in the database is returned.
+*/
+int testCksumDatabase(
+  TestDb *pDb,                    /* Database handle */
+  char *zOut                      /* Buffer to write checksum to */
+){
+  Cksum cksum;
+  memset(&cksum, 0, sizeof(Cksum));
+  tdb_scan(pDb, (void *)&cksum, 0, 0, 0, 0, 0, scanCksumDb);
+  sprintf(zOut, "%d %x %x", 
+      cksum.nRow, (u32)cksum.cksum1, (u32)cksum.cksum2
+  );
+  assert( strlen(zOut)<TEST_CKSUM_BYTES );
+  return cksum.nRow;
+}
+
+int testCountDatabase(TestDb *pDb){
+  Cksum cksum;
+  memset(&cksum, 0, sizeof(Cksum));
+  tdb_scan(pDb, (void *)&cksum, 0, 0, 0, 0, 0, scanCountDb);
+  return cksum.nRow;
+}
+
+/*
+** This function is a no-op if *pRc is not 0 when it is called.
+**
+** Otherwise, the two nul-terminated strings z1 and z1 are compared. If
+** they are the same, the function returns without doing anything. Otherwise,
+** an error message is printed, *pRc is set to 1 and the test_failed()
+** function called.
+*/
+void testCompareStr(const char *z1, const char *z2, int *pRc){
+  if( *pRc==0 ){
+    if( strcmp(z1, z2) ){
+      testPrintError("testCompareStr: \"%s\" != \"%s\"\n", z1, z2);
+      *pRc = 1;
+      test_failed();
+    }
+  }
+}
+
+/*
+** This function is a no-op if *pRc is not 0 when it is called.
+**
+** Otherwise, the two integers i1 and i2 are compared. If they are equal,
+** the function returns without doing anything. Otherwise, an error message 
+** is printed, *pRc is set to 1 and the test_failed() function called.
+*/
+void testCompareInt(int i1, int i2, int *pRc){
+  if( *pRc==0 && i1!=i2 ){
+    testPrintError("testCompareInt: %d != %d\n", i1, i2);
+    *pRc = 1;
+    test_failed();
+  }
+}
+
+void testCaseStart(int *pRc, char *zFmt, ...){
+  va_list ap;
+  va_start(ap, zFmt);
+  vprintf(zFmt, ap);
+  printf(" ...");
+  va_end(ap);
+  *pRc = 0;
+  fflush(stdout);
+}
+
+/*
+** This function is a no-op if *pRc is non-zero when it is called. Zero
+** is returned in this case.
+**
+** Otherwise, the zFmt (a printf style format string) and following arguments 
+** are used to create a test case name. If zPattern is NULL or a glob pattern
+** that matches the test case name, 1 is returned and the test case started.
+** Otherwise, zero is returned and the test case does not start.
+*/
+int testCaseBegin(int *pRc, const char *zPattern, const char *zFmt, ...){
+  int res = 0;
+  if( *pRc==0 ){
+    char *zTest;
+    va_list ap;
+
+    va_start(ap, zFmt);
+    zTest = testMallocVPrintf(zFmt, ap);
+    va_end(ap);
+    if( zPattern==0 || testGlobMatch(zPattern, zTest) ){
+      printf("%-50s ...", zTest);
+      res = 1;
+    }
+    testFree(zTest);
+    fflush(stdout);
+  }
+
+  return res;
+}
+
+void testCaseFinish(int rc){
+  if( rc==0 ){
+    printf("Ok\n");
+  }else{
+    printf("FAILED\n");
+  }
+  fflush(stdout);
+}
+
+void testCaseSkip(){
+  printf("Skipped\n");
+}
+
+void testSetupSavedLsmdb(
+  const char *zCfg,
+  const char *zFile,
+  Datasource *pData,
+  int nRow,
+  int *pRc
+){
+  if( *pRc==0 ){
+    int rc;
+    TestDb *pDb;
+    rc = tdb_lsm_open(zCfg, zFile, 1, &pDb);
+    if( rc==0 ){
+      testWriteDatasourceRange(pDb, pData, 0, nRow, &rc);
+      testClose(&pDb);
+      if( rc==0 ) testSaveDb(zFile, "log");
+    }
+    *pRc = rc;
+  }
+}
+
+/*
+** This function is a no-op if *pRc is non-zero when it is called.
+**
+** Open the LSM database identified by zFile and compute its checksum
+** (a string, as returned by testCksumDatabase()). If the checksum is
+** identical to zExpect1 or, if it is not NULL, zExpect2, the test passes.
+** Otherwise, print an error message and set *pRc to 1.
+*/
+static void testCompareCksumLsmdb(
+  const char *zFile,              /* Path to LSM database */
+  int bCompress,                  /* True if db is compressed */
+  const char *zExpect1,           /* Expected checksum 1 */
+  const char *zExpect2,           /* Expected checksum 2 (or NULL) */
+  int *pRc                        /* IN/OUT: Test case error code */
+){
+  if( *pRc==0 ){
+    char zCksum[TEST_CKSUM_BYTES];
+    TestDb *pDb;
+
+    *pRc = tdb_lsm_open((bCompress?"compression=1 mmap=0":""), zFile, 0, &pDb);
+    testCksumDatabase(pDb, zCksum);
+    testClose(&pDb);
+
+    if( *pRc==0 ){
+      int r1 = 0;
+      int r2 = -1;
+
+      r1 = strcmp(zCksum, zExpect1);
+      if( zExpect2 ) r2 = strcmp(zCksum, zExpect2);
+      if( r1 && r2 ){
+        if( zExpect2 ){
+          testPrintError("testCompareCksumLsmdb: \"%s\" != (\"%s\" OR \"%s\")",
+              zCksum, zExpect1, zExpect2
+          );
+        }else{
+          testPrintError("testCompareCksumLsmdb: \"%s\" != \"%s\"",
+              zCksum, zExpect1
+          );
+        }
+        *pRc = 1;
+        test_failed();
+      }
+    }
+  }
+}
+
+#if 0 /* not used */
+static void testCompareCksumBtdb(
+  const char *zFile,              /* Path to LSM database */
+  const char *zExpect1,           /* Expected checksum 1 */
+  const char *zExpect2,           /* Expected checksum 2 (or NULL) */
+  int *pRc                        /* IN/OUT: Test case error code */
+){
+  if( *pRc==0 ){
+    char zCksum[TEST_CKSUM_BYTES];
+    TestDb *pDb;
+
+    *pRc = tdb_open("bt", zFile, 0, &pDb);
+    testCksumDatabase(pDb, zCksum);
+    testClose(&pDb);
+
+    if( *pRc==0 ){
+      int r1 = 0;
+      int r2 = -1;
+
+      r1 = strcmp(zCksum, zExpect1);
+      if( zExpect2 ) r2 = strcmp(zCksum, zExpect2);
+      if( r1 && r2 ){
+        if( zExpect2 ){
+          testPrintError("testCompareCksumLsmdb: \"%s\" != (\"%s\" OR \"%s\")",
+              zCksum, zExpect1, zExpect2
+          );
+        }else{
+          testPrintError("testCompareCksumLsmdb: \"%s\" != \"%s\"",
+              zCksum, zExpect1
+          );
+        }
+        *pRc = 1;
+        test_failed();
+      }
+    }
+  }
+}
+#endif /* not used */
+
+/* Above this point are reusable test routines. Not clear that they
+** should really be in this file.
+*************************************************************************/
+
+/*
+** This test verifies that if a system crash occurs while doing merge work
+** on the db, no data is lost.
+*/
+static void crash_test1(int bCompress, int *pRc){
+  const char *DBNAME = "testdb.lsm";
+  const DatasourceDefn defn = {TEST_DATASOURCE_RANDOM, 12, 16, 200, 200};
+
+  const int nRow = 5000;          /* Database size */
+  const int nIter = 200;          /* Number of test iterations */
+  const int nWork = 20;           /* Maximum lsm_work() calls per iteration */
+  const int nPage = 15;           /* Pages per lsm_work call */
+
+  int i;
+  int iDot = 0;
+  Datasource *pData;
+  CksumDb *pCksumDb;
+  TestDb *pDb;
+  char *zCfg;
+
+  const char *azConfig[2] = {
+    "page_size=1024 block_size=65536 autoflush=16384 safety=2 mmap=0", 
+    "page_size=1024 block_size=65536 autoflush=16384 safety=2 "
+    " compression=1 mmap=0"
+  };
+  assert( bCompress==0 || bCompress==1 );
+
+  /* Allocate datasource. And calculate the expected checksums. */
+  pData = testDatasourceNew(&defn);
+  pCksumDb = testCksumArrayNew(pData, nRow, nRow, 1);
+
+  /* Setup and save the initial database. */
+
+  zCfg = testMallocPrintf("%s automerge=7", azConfig[bCompress]);
+  testSetupSavedLsmdb(zCfg, DBNAME, pData, 5000, pRc);
+  testFree(zCfg);
+
+  for(i=0; i<nIter && *pRc==0; i++){
+    int iWork;
+    int testrc = 0;
+
+    testCaseProgress(i, nIter, testCaseNDot(), &iDot);
+
+    /* Restore and open the database. */
+    testRestoreDb(DBNAME, "log");
+    testrc = tdb_lsm_open(azConfig[bCompress], DBNAME, 0, &pDb);
+    assert( testrc==0 );
+
+    /* Call lsm_work() on the db */
+    tdb_lsm_prepare_sync_crash(pDb, 1 + (i%(nWork*2)));
+    for(iWork=0; testrc==0 && iWork<nWork; iWork++){
+      int nWrite = 0;
+      lsm_db *db = tdb_lsm(pDb);
+      testrc = lsm_work(db, 0, nPage, &nWrite);
+      /* assert( testrc!=0 || nWrite>0 ); */
+      if( testrc==0 ) testrc = lsm_checkpoint(db, 0);
+    }
+    tdb_close(pDb);
+
+    /* Check that the database content is still correct */
+    testCompareCksumLsmdb(DBNAME, 
+        bCompress, testCksumArrayGet(pCksumDb, nRow), 0, pRc);
+  }
+
+  testCksumArrayFree(pCksumDb);
+  testDatasourceFree(pData);
+}
+
+/*
+** This test verifies that if a system crash occurs while committing a
+** transaction to the log file, no earlier transactions are lost or damaged.
+*/
+static void crash_test2(int bCompress, int *pRc){
+  const char *DBNAME = "testdb.lsm";
+  const DatasourceDefn defn = {TEST_DATASOURCE_RANDOM, 12, 16, 1000, 1000};
+
+  const int nIter = 200;
+  const int nInsert = 20;
+
+  int i;
+  int iDot = 0;
+  Datasource *pData;
+  CksumDb *pCksumDb;
+  TestDb *pDb;
+
+  /* Allocate datasource. And calculate the expected checksums. */
+  pData = testDatasourceNew(&defn);
+  pCksumDb = testCksumArrayNew(pData, 100, 100+nInsert, 1);
+
+  /* Setup and save the initial database. */
+  testSetupSavedLsmdb("", DBNAME, pData, 100, pRc);
+
+  for(i=0; i<nIter && *pRc==0; i++){
+    int iIns;
+    int testrc = 0;
+
+    testCaseProgress(i, nIter, testCaseNDot(), &iDot);
+
+    /* Restore and open the database. */
+    testRestoreDb(DBNAME, "log");
+    testrc = tdb_lsm_open("safety=2", DBNAME, 0, &pDb);
+    assert( testrc==0 );
+
+    /* Insert nInsert records into the database. Crash midway through. */
+    tdb_lsm_prepare_sync_crash(pDb, 1 + (i%(nInsert+2)));
+    for(iIns=0; iIns<nInsert; iIns++){
+      void *pKey; int nKey;
+      void *pVal; int nVal;
+
+      testDatasourceEntry(pData, 100+iIns, &pKey, &nKey, &pVal, &nVal);
+      testrc = tdb_write(pDb, pKey, nKey, pVal, nVal);
+      if( testrc ) break;
+    }
+    tdb_close(pDb);
+
+    /* Check that no data was lost when the system crashed. */
+    testCompareCksumLsmdb(DBNAME, bCompress,
+      testCksumArrayGet(pCksumDb, 100 + iIns),
+      testCksumArrayGet(pCksumDb, 100 + iIns + 1),
+      pRc
+    );
+  }
+
+  testDatasourceFree(pData);
+  testCksumArrayFree(pCksumDb);
+}
+
+
+/*
+** This test verifies that if a system crash occurs when checkpointing
+** the database, data is not lost (assuming that any writes not synced
+** to the db have been synced into the log file).
+*/
+static void crash_test3(int bCompress, int *pRc){
+  const char *DBNAME = "testdb.lsm";
+  const int nIter = 100;
+  const DatasourceDefn defn = {TEST_DATASOURCE_RANDOM, 12, 16, 1000, 1000};
+
+  int i;
+  int iDot = 0;
+  Datasource *pData;
+  CksumDb *pCksumDb;
+  TestDb *pDb;
+
+  /* Allocate datasource. And calculate the expected checksums. */
+  pData = testDatasourceNew(&defn);
+  pCksumDb = testCksumArrayNew(pData, 110, 150, 10);
+
+  /* Setup and save the initial database. */
+  testSetupSavedLsmdb("", DBNAME, pData, 100, pRc);
+
+  for(i=0; i<nIter && *pRc==0; i++){
+    int iOpen;
+    testCaseProgress(i, nIter, testCaseNDot(), &iDot);
+    testRestoreDb(DBNAME, "log");
+
+    for(iOpen=0; iOpen<5; iOpen++){
+      /* Open the database. Insert 10 more records. */
+      pDb = testOpen("lsm", 0, pRc);
+      testWriteDatasourceRange(pDb, pData, 100+iOpen*10, 10, pRc);
+
+      /* Schedule a crash simulation then close the db. */
+      tdb_lsm_prepare_sync_crash(pDb, 1 + (i%2));
+      tdb_close(pDb);
+
+      /* Open the database and check that the crash did not cause any
+      ** data loss.  */
+      testCompareCksumLsmdb(DBNAME, bCompress,
+        testCksumArrayGet(pCksumDb, 110 + iOpen*10), 0,
+        pRc
+      );
+    }
+  }
+
+  testDatasourceFree(pData);
+  testCksumArrayFree(pCksumDb);
+}
+
+void do_crash_test(const char *zPattern, int *pRc){
+  struct Test {
+    const char *zTest;
+    void (*x)(int, int *);
+    int bCompress;
+  } aTest [] = {
+    { "crash.lsm.1",     crash_test1, 0 },
+#ifdef HAVE_ZLIB
+    { "crash.lsm_zip.1", crash_test1, 1 },
+#endif
+    { "crash.lsm.2",     crash_test2, 0 },
+    { "crash.lsm.3",     crash_test3, 0 },
+  };
+  int i;
+
+  for(i=0; *pRc==LSM_OK && i<ArraySize(aTest); i++){
+    struct Test *p = &aTest[i];
+    if( testCaseBegin(pRc, zPattern, "%s", p->zTest) ){
+      p->x(p->bCompress, pRc);
+      testCaseFinish(*pRc);
+    }
+  }
+}
diff --git a/ext/lsm1/lsm-test/lsmtest3.c b/ext/lsm1/lsm-test/lsmtest3.c
new file mode 100644
index 0000000000000000000000000000000000000000..760dec300f464a5d042f2f6e483ed66215a5325d
--- /dev/null
+++ b/ext/lsm1/lsm-test/lsmtest3.c
@@ -0,0 +1,238 @@
+
+
+/*
+** This file contains tests related to the explicit rollback of database
+** transactions and sub-transactions.
+*/
+
+
+/*
+** Repeat 2000 times (until the db contains 100,000 entries):
+**
+**   1. Open a transaction and insert 500 rows, opening a nested 
+**      sub-transaction each 100 rows.
+**
+**   2. Roll back to each sub-transaction savepoint. Check the database
+**      checksum looks Ok.
+**
+**   3. Every second iteration, roll back the main transaction. Check the
+**      db checksum is correct. Every other iteration, commit the main
+**      transaction (increasing the size of the db by 100 rows).
+*/
+
+
+#include "lsmtest.h"
+
+struct CksumDb {
+  int nFirst;
+  int nLast;
+  int nStep;
+  char **azCksum;
+};
+
+CksumDb *testCksumArrayNew(
+  Datasource *pData, 
+  int nFirst, 
+  int nLast, 
+  int nStep
+){
+  TestDb *pDb;
+  CksumDb *pRet;
+  int i;
+  int nEntry;
+  int rc = 0;
+
+  assert( nLast>=nFirst && ((nLast-nFirst)%nStep)==0 );
+ 
+  pRet = malloc(sizeof(CksumDb));
+  memset(pRet, 0, sizeof(CksumDb));
+  pRet->nFirst = nFirst;
+  pRet->nLast = nLast;
+  pRet->nStep = nStep;
+  nEntry = 1 + ((nLast - nFirst) / nStep);
+
+  /* Allocate space so that azCksum is an array of nEntry pointers to
+  ** buffers each TEST_CKSUM_BYTES in size.  */
+  pRet->azCksum = (char **)malloc(nEntry * (sizeof(char *) + TEST_CKSUM_BYTES));
+  for(i=0; i<nEntry; i++){
+    char *pStart = (char *)(&pRet->azCksum[nEntry]);
+    pRet->azCksum[i] = &pStart[i * TEST_CKSUM_BYTES];
+  }
+
+  tdb_open("lsm", "tempdb.lsm", 1, &pDb);
+  testWriteDatasourceRange(pDb, pData, 0, nFirst, &rc);
+  for(i=0; i<nEntry; i++){
+    testCksumDatabase(pDb, pRet->azCksum[i]);
+    if( i==nEntry ) break;
+    testWriteDatasourceRange(pDb, pData, nFirst+i*nStep, nStep, &rc);
+  }
+
+  tdb_close(pDb);
+
+  return pRet;
+}
+
+char *testCksumArrayGet(CksumDb *p, int nRow){
+  int i;
+  assert( nRow>=p->nFirst );
+  assert( nRow<=p->nLast );
+  assert( ((nRow-p->nFirst) % p->nStep)==0 );
+
+  i = (nRow - p->nFirst) / p->nStep;
+  return p->azCksum[i];
+}
+
+void testCksumArrayFree(CksumDb *p){
+  free(p->azCksum);
+  memset(p, 0x55, sizeof(*p));
+  free(p);
+}
+
+/* End of CksumDb code.
+**************************************************************************/
+
+/*
+** Test utility function. Write key-value pair $i from datasource pData 
+** into database pDb.
+*/
+void testWriteDatasource(TestDb *pDb, Datasource *pData, int i, int *pRc){
+  void *pKey; int nKey;
+  void *pVal; int nVal;
+  testDatasourceEntry(pData, i, &pKey, &nKey, &pVal, &nVal);
+  testWrite(pDb, pKey, nKey, pVal, nVal, pRc);
+}
+
+/*
+** Test utility function. Delete datasource pData key $i from database pDb.
+*/
+void testDeleteDatasource(TestDb *pDb, Datasource *pData, int i, int *pRc){
+  void *pKey; int nKey;
+  testDatasourceEntry(pData, i, &pKey, &nKey, 0, 0);
+  testDelete(pDb, pKey, nKey, pRc);
+}
+
+/*
+** This function inserts nWrite key/value pairs into database pDb - the
+** nWrite key value pairs starting at iFirst from data source pData.
+*/
+void testWriteDatasourceRange(
+  TestDb *pDb,                    /* Database to write to */
+  Datasource *pData,              /* Data source to read values from */
+  int iFirst,                     /* Index of first key/value pair */
+  int nWrite,                     /* Number of key/value pairs to write */
+  int *pRc                        /* IN/OUT: Error code */
+){
+  int i;
+  for(i=0; i<nWrite; i++){
+    testWriteDatasource(pDb, pData, iFirst+i, pRc);
+  }
+}
+
+void testDeleteDatasourceRange(
+  TestDb *pDb,                    /* Database to write to */
+  Datasource *pData,              /* Data source to read keys from */
+  int iFirst,                     /* Index of first key */
+  int nWrite,                     /* Number of keys to delete */
+  int *pRc                        /* IN/OUT: Error code */
+){
+  int i;
+  for(i=0; i<nWrite; i++){
+    testDeleteDatasource(pDb, pData, iFirst+i, pRc);
+  }
+}
+
+static char *getName(const char *zSystem){ 
+  char *zRet; 
+  zRet = testMallocPrintf("rollback.%s", zSystem);
+  return zRet;
+}
+
+static int rollback_test_1(
+  const char *zSystem,
+  Datasource *pData
+){
+  const int nRepeat = 100;
+
+  TestDb *pDb;
+  int rc;
+  int i;
+  CksumDb *pCksum;
+  char *zName;
+
+  zName = getName(zSystem);
+  testCaseStart(&rc, zName);
+  testFree(zName);
+
+  pCksum = testCksumArrayNew(pData, 0, nRepeat*100, 100);
+  pDb = 0;
+  rc = tdb_open(zSystem, 0, 1, &pDb);
+  if( pDb && tdb_transaction_support(pDb)==0 ){
+    testCaseSkip();
+    goto skip_rollback_test;
+  }
+
+  for(i=0; i<nRepeat && rc==0; i++){
+    char zCksum[TEST_CKSUM_BYTES];
+    int nCurrent = (((i+1)/2) * 100);
+    int nDbRow;
+    int iTrans;
+
+    /* Check that the database is the expected size. */
+    nDbRow = testCountDatabase(pDb);
+    testCompareInt(nCurrent, nDbRow, &rc);
+
+    for(iTrans=2; iTrans<=6 && rc==0; iTrans++){
+      tdb_begin(pDb, iTrans);
+      testWriteDatasourceRange(pDb, pData, nCurrent, 100, &rc);
+      nCurrent += 100;
+    }
+
+    testCksumDatabase(pDb, zCksum);
+    testCompareStr(zCksum, testCksumArrayGet(pCksum, nCurrent), &rc);
+
+    for(iTrans=6; iTrans>2 && rc==0; iTrans--){
+      tdb_rollback(pDb, iTrans);
+      nCurrent -= 100;
+      testCksumDatabase(pDb, zCksum);
+      testCompareStr(zCksum, testCksumArrayGet(pCksum, nCurrent), &rc);
+    }
+
+    if( i%2 ){
+      tdb_rollback(pDb, 0);
+      nCurrent -= 100;
+      testCksumDatabase(pDb, zCksum);
+      testCompareStr(zCksum, testCksumArrayGet(pCksum, nCurrent), &rc);
+    }else{
+      tdb_commit(pDb, 0);
+    }
+  }
+  testCaseFinish(rc);
+
+ skip_rollback_test:
+  tdb_close(pDb);
+  testCksumArrayFree(pCksum);
+  return rc;
+}
+
+void test_rollback(
+  const char *zSystem, 
+  const char *zPattern, 
+  int *pRc
+){
+  if( *pRc==0 ){
+    int bRun = 1;
+
+    if( zPattern ){
+      char *zName = getName(zSystem);
+      bRun = testGlobMatch(zPattern, zName);
+      testFree(zName);
+    }
+
+    if( bRun ){
+      DatasourceDefn defn = { TEST_DATASOURCE_RANDOM, 10, 15, 50, 100 };
+      Datasource *pData = testDatasourceNew(&defn);
+      *pRc = rollback_test_1(zSystem, pData);
+      testDatasourceFree(pData);
+    }
+  }
+}
diff --git a/ext/lsm1/lsm-test/lsmtest4.c b/ext/lsm1/lsm-test/lsmtest4.c
new file mode 100644
index 0000000000000000000000000000000000000000..a47241db929504e918b3310927249401132e4261
--- /dev/null
+++ b/ext/lsm1/lsm-test/lsmtest4.c
@@ -0,0 +1,127 @@
+
+/*
+** This file contains test cases involving multiple database clients.
+*/
+
+#include "lsmtest.h"
+
+/*
+** The following code implements test cases "mc1.*".
+**
+** This test case uses one writer and $nReader readers. All connections
+** are driven by a single thread. All connections are opened at the start
+** of the test and remain open until the test is finished.
+**
+** The test consists of $nStep steps. Each step the following is performed:
+**
+**   1. The writer inserts $nWriteStep records into the db.
+**
+**   2. The writer checks that the contents of the db are as expected.
+**
+**   3. Each reader that currently has an open read transaction also checks
+**      that the contents of the db are as expected (according to the snapshot
+**      the read transaction is reading - see below).
+**
+** After step 1, reader 1 opens a read transaction. After step 2, reader
+** 2 opens a read transaction, and so on. At step ($nReader+1), reader 1
+** closes the current read transaction and opens a new one. And so on.
+** The result is that at step N (for N > $nReader), there exists a reader
+** with an open read transaction reading the snapshot committed following
+** steps (N-$nReader-1) to N. 
+*/
+typedef struct Mctest Mctest;
+struct Mctest {
+  DatasourceDefn defn;            /* Datasource to use */
+  int nStep;                      /* Total number of steps in test */
+  int nWriteStep;                 /* Number of rows to insert each step */
+  int nReader;                    /* Number of read connections */
+};
+static void do_mc_test(
+  const char *zSystem,            /* Database system to test */
+  Mctest *pTest,
+  int *pRc                        /* IN/OUT: return code */
+){
+  const int nDomain = pTest->nStep * pTest->nWriteStep;
+  Datasource *pData;              /* Source of data */
+  TestDb *pDb;                    /* First database connection (writer) */
+  int iReader;                    /* Used to iterate through aReader */
+  int iStep;                      /* Current step in test */
+  int iDot = 0;                   /* Current step in test */
+
+  /* Array of reader connections */
+  struct Reader {
+    TestDb *pDb;                  /* Connection handle */
+    int iLast;                    /* Current snapshot contains keys 0..iLast */
+  } *aReader;
+
+  /* Create a data source */
+  pData = testDatasourceNew(&pTest->defn);
+
+  /* Open the writer connection */
+  pDb = testOpen(zSystem, 1, pRc);
+
+  /* Allocate aReader */
+  aReader = (struct Reader *)testMalloc(sizeof(aReader[0]) * pTest->nReader);
+  for(iReader=0; iReader<pTest->nReader; iReader++){
+    aReader[iReader].pDb = testOpen(zSystem, 0, pRc);
+  }
+
+  for(iStep=0; iStep<pTest->nStep; iStep++){
+    int iLast;
+    int iBegin;                   /* Start read trans using aReader[iBegin] */
+
+    /* Insert nWriteStep more records into the database */
+    int iFirst = iStep*pTest->nWriteStep;
+    testWriteDatasourceRange(pDb, pData, iFirst, pTest->nWriteStep, pRc);
+
+    /* Check that the db is Ok according to the writer */
+    iLast = (iStep+1) * pTest->nWriteStep - 1;
+    testDbContents(pDb, pData, nDomain, 0, iLast, iLast, 1, pRc);
+
+    /* Have reader (iStep % nReader) open a read transaction here. */
+    iBegin = (iStep % pTest->nReader);
+    if( iBegin<iStep ) tdb_commit(aReader[iBegin].pDb, 0);
+    tdb_begin(aReader[iBegin].pDb, 1);
+    aReader[iBegin].iLast = iLast;
+
+    /* Check that the db is Ok for each open reader */
+    for(iReader=0; iReader<pTest->nReader && aReader[iReader].iLast; iReader++){
+      iLast = aReader[iReader].iLast;
+      testDbContents(
+          aReader[iReader].pDb, pData, nDomain, 0, iLast, iLast, 1, pRc
+      );
+    }
+
+    /* Report progress */
+    testCaseProgress(iStep, pTest->nStep, testCaseNDot(), &iDot);
+  }
+
+  /* Close all readers */
+  for(iReader=0; iReader<pTest->nReader; iReader++){
+    testClose(&aReader[iReader].pDb);
+  }
+  testFree(aReader);
+
+  /* Close the writer-connection and free the datasource */
+  testClose(&pDb);
+  testDatasourceFree(pData);
+}
+
+
+void test_mc(
+  const char *zSystem,            /* Database system name */
+  const char *zPattern,           /* Run test cases that match this pattern */
+  int *pRc                        /* IN/OUT: Error code */
+){
+  int i;
+  Mctest aTest[] = {
+    { { TEST_DATASOURCE_RANDOM, 10,10, 100,100 }, 100, 10, 5 },
+  };
+
+  for(i=0; i<ArraySize(aTest); i++){
+    if( testCaseBegin(pRc, zPattern, "mc1.%s.%d", zSystem, i) ){
+      do_mc_test(zSystem, &aTest[i], pRc);
+      testCaseFinish(*pRc);
+    }
+  }
+}
diff --git a/ext/lsm1/lsm-test/lsmtest5.c b/ext/lsm1/lsm-test/lsmtest5.c
new file mode 100644
index 0000000000000000000000000000000000000000..f36184e79bf029e059f365aa79b1768754049f87
--- /dev/null
+++ b/ext/lsm1/lsm-test/lsmtest5.c
@@ -0,0 +1,633 @@
+
+/*
+** This file is broken into three semi-autonomous parts:
+**
+**   1. The database functions.
+**   2. The thread wrappers.
+**   3. The implementation of the mt1.* tests.
+*/
+
+/*************************************************************************
+** DATABASE CONTENTS:
+**
+**   The database contains up to N key/value pairs, where N is some large 
+**   number (say 10,000,000). Keys are integer values between 0 and (N-1).
+**   The value associated with each key is a pseudo-random blob of data.
+**
+**   Key/value pair keys are encoded as the two bytes "k." followed by a 
+**   10-digit decimal number. i.e. key 45 -> "k.0000000045".
+**
+**   As well as the key/value pairs, the database also contains checksum 
+**   entries. The checksums form a hierarchy - for every F key/value
+**   entries there is one level 1 checksum. And for each F level 1 checksums
+**   there is one level 2 checksum. And so on.
+**
+**   Checksum keys are encoded as the two byte "c." followed by the 
+**   checksum level, followed by a 10 digit decimal number containing
+**   the value of the first key that contributes to the checksum value.
+**   For example, assuming F==10, the level 1 checksum that spans keys
+**   10 to 19 is "c.1.0000000010".
+**
+**   Clients may perform one of two operations on the database: a read
+**   or a write.
+** 
+** READ OPERATIONS:
+**
+**   A read operation scans a range of F key/value pairs. It computes
+**   the expected checksum and then compares the computed value to the
+**   actual value stored in the level 1 checksum entry. It then scans 
+**   the group of F level 1 checksums, and compares the computed checksum 
+**   to the associated level 2 checksum value, and so on until the 
+**   highest level checksum value has been verified.
+**
+**   If a checksum ever fails to match the expected value, the test 
+**   has failed.
+**
+** WRITE OPERATIONS:
+**
+**   A write operation involves writing (possibly clobbering) a single
+**   key/value pair. The associated level 1 checksum is then recalculated
+**   updated. Then the level 2 checksum, and so on until the highest
+**   level checksum has been modified.
+**
+**   All updates occur inside a single transaction.
+**
+** INTERFACE:
+**
+**   The interface used by test cases to read and write the db consists
+**   of type DbParameters and the following functions:
+**
+**       dbReadOperation()
+**       dbWriteOperation()
+*/
+
+#include "lsmtest.h"
+
+typedef struct DbParameters DbParameters;
+struct DbParameters {
+  int nFanout;                    /* Checksum fanout (F) */
+  int nKey;                       /* Size of key space (N) */
+};
+
+#define DB_KEY_BYTES          (2+5+10+1)
+
+/*
+** Argument aBuf[] must point to a buffer at least DB_KEY_BYTES in size.
+** This function populates the buffer with a nul-terminated key string 
+** corresponding to key iKey.
+*/
+static void dbFormatKey(
+  DbParameters *pParam,
+  int iLevel,
+  int iKey,                       /* Key value */
+  char *aBuf                      /* Write key string here */
+){
+  if( iLevel==0 ){
+    snprintf(aBuf, DB_KEY_BYTES, "k.%.10d", iKey);
+  }else{
+    int f = 1;
+    int i;
+    for(i=0; i<iLevel; i++) f = f * pParam->nFanout;
+    snprintf(aBuf, DB_KEY_BYTES, "c.%d.%.10d", iLevel, f*(iKey/f));
+  }
+}
+
+/*
+** Argument aBuf[] must point to a buffer at least DB_KEY_BYTES in size.
+** This function populates the buffer with the string representation of
+** checksum value iVal.
+*/
+static void dbFormatCksumValue(u32 iVal, char *aBuf){
+  snprintf(aBuf, DB_KEY_BYTES, "%.10u", iVal);
+}
+
+/*
+** Return the highest level of checksum in the database described
+** by *pParam.
+*/
+static int dbMaxLevel(DbParameters *pParam){
+  int iMax;
+  int n = 1;
+  for(iMax=0; n<pParam->nKey; iMax++){
+    n = n * pParam->nFanout;
+  }
+  return iMax;
+}
+
+static void dbCksum(
+  void *pCtx,                     /* IN/OUT: Pointer to u32 containing cksum */
+  void *pKey, int nKey,           /* Database key. Unused. */
+  void *pVal, int nVal            /* Database value. Checksum this. */
+){
+  u8 *aVal = (u8 *)pVal;
+  u32 *pCksum = (u32 *)pCtx;
+  u32 cksum = *pCksum;
+  int i;
+
+  unused_parameter(pKey);
+  unused_parameter(nKey);
+
+  for(i=0; i<nVal; i++){
+    cksum += (cksum<<3) + (int)aVal[i];
+  }
+
+  *pCksum = cksum;
+}
+
+/*
+** Compute the value of the checksum stored on level iLevel that contains
+** data from key iKey by scanning the pParam->nFanout entries at level 
+** iLevel-1.
+*/
+static u32 dbComputeCksum(
+  DbParameters *pParam,           /* Database parameters */
+  TestDb *pDb,                    /* Database connection handle */
+  int iLevel,                     /* Level of checksum to compute */
+  int iKey,                       /* Compute checksum for this key */
+  int *pRc                        /* IN/OUT: Error code */
+){
+  u32 cksum = 0;
+  if( *pRc==0 ){
+    int nFirst;
+    int nLast;
+    int iFirst = 0;
+    int iLast = 0;
+    int i;
+    int f = 1;
+    char zFirst[DB_KEY_BYTES];
+    char zLast[DB_KEY_BYTES];
+
+    assert( iLevel>=1 );
+    for(i=0; i<iLevel; i++) f = f * pParam->nFanout;
+
+    iFirst = f*(iKey/f);
+    iLast = iFirst + f - 1;
+    dbFormatKey(pParam, iLevel-1, iFirst, zFirst);
+    dbFormatKey(pParam, iLevel-1, iLast, zLast);
+    nFirst = strlen(zFirst);
+    nLast = strlen(zLast);
+
+    *pRc = tdb_scan(pDb, (u32*)&cksum, 0, zFirst, nFirst, zLast, nLast,dbCksum);
+  }
+
+  return cksum;
+}
+
+static void dbReadOperation(
+  DbParameters *pParam,           /* Database parameters */
+  TestDb *pDb,                    /* Database connection handle */
+  void (*xDelay)(void *),
+  void *pDelayCtx,
+  int iKey,                       /* Key to read */
+  int *pRc                        /* IN/OUT: Error code */
+){
+  const int iMax = dbMaxLevel(pParam);
+  int i;
+
+  if( tdb_transaction_support(pDb) ) testBegin(pDb, 1, pRc);
+  for(i=1; *pRc==0 && i<=iMax; i++){
+    char zCksum[DB_KEY_BYTES];
+    char zKey[DB_KEY_BYTES];
+    u32 iCksum = 0;
+
+    iCksum = dbComputeCksum(pParam, pDb, i, iKey, pRc);
+    if( iCksum ){
+      if( xDelay && i==1 ) xDelay(pDelayCtx);
+      dbFormatCksumValue(iCksum, zCksum);
+      dbFormatKey(pParam, i, iKey, zKey);
+      testFetchStr(pDb, zKey, zCksum, pRc);
+    }
+  }
+  if( tdb_transaction_support(pDb) ) testCommit(pDb, 0, pRc);
+}
+
+static int dbWriteOperation(
+  DbParameters *pParam,           /* Database parameters */
+  TestDb *pDb,                    /* Database connection handle */
+  int iKey,                       /* Key to write to */
+  const char *zValue,             /* Nul-terminated value to write */
+  int *pRc                        /* IN/OUT: Error code */
+){
+  const int iMax = dbMaxLevel(pParam);
+  char zKey[DB_KEY_BYTES];
+  int i;
+  int rc;
+
+  assert( iKey>=0 && iKey<pParam->nKey );
+  dbFormatKey(pParam, 0, iKey, zKey);
+
+  /* Open a write transaction. This may fail - SQLITE4_BUSY */
+  if( *pRc==0 && tdb_transaction_support(pDb) ){
+    rc = tdb_begin(pDb, 2);
+    if( rc==5 ) return 0;
+    *pRc = rc;
+  }
+
+  testWriteStr(pDb, zKey, zValue, pRc);
+  for(i=1; i<=iMax; i++){
+    char zCksum[DB_KEY_BYTES];
+    u32 iCksum = 0;
+
+    iCksum = dbComputeCksum(pParam, pDb, i, iKey, pRc);
+    dbFormatCksumValue(iCksum, zCksum);
+    dbFormatKey(pParam, i, iKey, zKey);
+    testWriteStr(pDb, zKey, zCksum, pRc);
+  }
+  if( tdb_transaction_support(pDb) ) testCommit(pDb, 0, pRc);
+  return 1;
+}
+
+/*************************************************************************
+** The following block contains testXXX() functions that implement a
+** wrapper around the systems native multi-thread support. There are no
+** synchronization primitives - just functions to launch and join 
+** threads. Wrapper functions are:
+**
+**    testThreadSupport()
+**
+**    testThreadInit()
+**    testThreadShutdown()
+**    testThreadLaunch()
+**    testThreadWait()
+**
+**    testThreadSetHalt()
+**    testThreadGetHalt()
+**    testThreadSetResult()
+**    testThreadGetResult()
+**
+**    testThreadEnterMutex()
+**    testThreadLeaveMutex()
+*/
+typedef struct ThreadSet ThreadSet;
+#ifdef LSM_MUTEX_PTHREADS
+
+#include <pthread.h>
+#include <unistd.h>
+
+typedef struct Thread Thread;
+struct Thread {
+  int rc;
+  char *zMsg;
+  pthread_t id;
+  void (*xMain)(ThreadSet *, int, void *);
+  void *pCtx;
+  ThreadSet *pThreadSet;
+};
+
+struct ThreadSet {
+  int bHalt;                      /* Halt flag */
+  int nThread;                    /* Number of threads */
+  Thread *aThread;                /* Array of Thread structures */
+  pthread_mutex_t mutex;          /* Mutex used for cheating */
+};
+
+/*
+** Return true if this build supports threads, or false otherwise. If
+** this function returns false, no other testThreadXXX() functions should
+** be called.
+*/
+static int testThreadSupport(){ return 1; }
+
+/*
+** Allocate and return a thread-set handle with enough space allocated
+** to handle up to nMax threads. Each call to this function should be
+** matched by a call to testThreadShutdown() to delete the object.
+*/
+static ThreadSet *testThreadInit(int nMax){
+  int nByte;                      /* Total space to allocate */
+  ThreadSet *p;                   /* Return value */
+
+  nByte = sizeof(ThreadSet) + sizeof(struct Thread) * nMax;
+  p = (ThreadSet *)testMalloc(nByte);
+  p->nThread = nMax;
+  p->aThread = (Thread *)&p[1];
+  pthread_mutex_init(&p->mutex, 0);
+
+  return p;
+}
+
+/*
+** Delete a thread-set object and release all resources held by it.
+*/
+static void testThreadShutdown(ThreadSet *p){
+  int i;
+  for(i=0; i<p->nThread; i++){
+    testFree(p->aThread[i].zMsg);
+  }
+  pthread_mutex_destroy(&p->mutex);
+  testFree(p);
+}
+
+static void *ttMain(void *pArg){
+  Thread *pThread = (Thread *)pArg;
+  int iThread;
+  iThread = (pThread - pThread->pThreadSet->aThread);
+  pThread->xMain(pThread->pThreadSet, iThread, pThread->pCtx);
+  return 0;
+}
+
+/*
+** Launch a new thread.
+*/
+static int testThreadLaunch(
+  ThreadSet *p,
+  int iThread,
+  void (*xMain)(ThreadSet *, int, void *),
+  void *pCtx
+){
+  int rc;
+  Thread *pThread;
+
+  assert( iThread>=0 && iThread<p->nThread );
+
+  pThread = &p->aThread[iThread];
+  assert( pThread->pThreadSet==0 );
+  pThread->xMain = xMain;
+  pThread->pCtx = pCtx;
+  pThread->pThreadSet = p;
+  rc = pthread_create(&pThread->id, 0, ttMain, (void *)pThread);
+
+  return rc;
+}
+
+/*
+** Set the thread-set "halt" flag.
+*/
+static void testThreadSetHalt(ThreadSet *pThreadSet){
+  pThreadSet->bHalt = 1;
+}
+
+/*
+** Return the current value of the thread-set "halt" flag.
+*/
+static int testThreadGetHalt(ThreadSet *pThreadSet){
+  return pThreadSet->bHalt;
+}
+
+static void testThreadSleep(ThreadSet *pThreadSet, int nMs){
+  int nRem = nMs;
+  while( nRem>0 && testThreadGetHalt(pThreadSet)==0 ){
+    usleep(50000);
+    nRem -= 50;
+  }
+}
+
+/*
+** Wait for all threads launched to finish before returning. If nMs
+** is greater than zero, set the "halt" flag to tell all threads
+** to halt after waiting nMs milliseconds.
+*/
+static void testThreadWait(ThreadSet *pThreadSet, int nMs){
+  int i;
+
+  testThreadSleep(pThreadSet, nMs);
+  testThreadSetHalt(pThreadSet);
+  for(i=0; i<pThreadSet->nThread; i++){
+    Thread *pThread = &pThreadSet->aThread[i];
+    if( pThread->xMain ){
+      pthread_join(pThread->id, 0);
+    }
+  }
+}
+
+/*
+** Set the result for thread iThread. 
+*/
+static void testThreadSetResult(
+  ThreadSet *pThreadSet,          /* Thread-set handle */
+  int iThread,                    /* Set result for this thread */
+  int rc,                         /* Result error code */
+  char *zFmt,                     /* Result string format */
+  ...                             /* Result string formatting args... */
+){
+  va_list ap;
+
+  testFree(pThreadSet->aThread[iThread].zMsg);
+  pThreadSet->aThread[iThread].rc = rc;
+  pThreadSet->aThread[iThread].zMsg = 0;
+  if( zFmt ){
+    va_start(ap, zFmt);
+    pThreadSet->aThread[iThread].zMsg = testMallocVPrintf(zFmt, ap);
+    va_end(ap);
+  }
+}
+
+/*
+** Retrieve the result for thread iThread. 
+*/
+static int testThreadGetResult(
+  ThreadSet *pThreadSet,          /* Thread-set handle */
+  int iThread,                    /* Get result for this thread */
+  const char **pzRes              /* OUT: Pointer to result string */
+){
+  if( pzRes ) *pzRes = pThreadSet->aThread[iThread].zMsg;
+  return pThreadSet->aThread[iThread].rc;
+}
+
+/*
+** Enter and leave the test case mutex.
+*/
+#if 0
+static void testThreadEnterMutex(ThreadSet *p){
+  pthread_mutex_lock(&p->mutex);
+}
+static void testThreadLeaveMutex(ThreadSet *p){
+  pthread_mutex_unlock(&p->mutex);
+}
+#endif
+#endif
+
+#if !defined(LSM_MUTEX_PTHREADS)
+static int testThreadSupport(){ return 0; }
+
+#define testThreadInit(a) 0
+#define testThreadShutdown(a)
+#define testThreadLaunch(a,b,c,d) 0
+#define testThreadWait(a,b)
+#define testThreadSetHalt(a)
+#define testThreadGetHalt(a) 0
+#define testThreadGetResult(a,b,c) 0
+#define testThreadSleep(a,b) 0
+
+static void testThreadSetResult(ThreadSet *a, int b, int c, char *d, ...){
+  unused_parameter(a);
+  unused_parameter(b);
+  unused_parameter(c);
+  unused_parameter(d);
+}
+#endif
+/* End of threads wrapper.
+*************************************************************************/
+
+/*************************************************************************
+** Below this point is the third part of this file - the implementation
+** of the mt1.* tests.
+*/
+typedef struct Mt1Test Mt1Test;
+struct Mt1Test {
+  DbParameters param;             /* Description of database to read/write */
+  int nReadwrite;                 /* Number of read/write threads */
+  int nFastReader;                /* Number of fast reader threads */
+  int nSlowReader;                /* Number of slow reader threads */
+  int nMs;                        /* How long to run for */
+  const char *zSystem;            /* Database system to test */
+};
+
+typedef struct Mt1DelayCtx Mt1DelayCtx;
+struct Mt1DelayCtx {
+  ThreadSet *pSet;                /* Threadset to sleep within */
+  int nMs;                        /* Sleep in ms */
+};
+
+static void xMt1Delay(void *pCtx){
+  Mt1DelayCtx *p = (Mt1DelayCtx *)pCtx;
+  testThreadSleep(p->pSet, p->nMs);
+}
+
+#define MT1_THREAD_RDWR 0
+#define MT1_THREAD_SLOW 1
+#define MT1_THREAD_FAST 2
+
+static void xMt1Work(lsm_db *pDb, void *pCtx){
+#if 0
+  char *z = 0;
+  lsm_info(pDb, LSM_INFO_DB_STRUCTURE, &z);
+  printf("%s\n", z);
+  fflush(stdout);
+#endif
+}
+
+/*
+** This is the main() proc for all threads in test case "mt1".
+*/
+static void mt1Main(ThreadSet *pThreadSet, int iThread, void *pCtx){
+  Mt1Test *p = (Mt1Test *)pCtx;   /* Test parameters */
+  Mt1DelayCtx delay;
+  int nRead = 0;                  /* Number of calls to dbReadOperation() */
+  int nWrite = 0;                 /* Number of completed database writes */
+  int rc = 0;                     /* Error code */
+  int iPrng;                      /* Prng argument variable */
+  TestDb *pDb;                    /* Database handle */
+  int eType;
+
+  delay.pSet = pThreadSet;
+  delay.nMs = 0;
+  if( iThread<p->nReadwrite ){
+    eType = MT1_THREAD_RDWR;
+  }else if( iThread<(p->nReadwrite+p->nFastReader) ){
+    eType = MT1_THREAD_FAST;
+  }else{
+    eType = MT1_THREAD_SLOW;
+    delay.nMs = (p->nMs / 20);
+  }
+
+  /* Open a new database connection. Initialize the pseudo-random number
+  ** argument based on the thread number.  */
+  iPrng = testPrngValue(iThread);
+  pDb = testOpen(p->zSystem, 0, &rc);
+
+  if( rc==0 ){
+    tdb_lsm_config_work_hook(pDb, xMt1Work, 0);
+  }
+
+  /* Loop until either an error occurs or some other thread sets the
+  ** halt flag.  */
+  while( rc==0 && testThreadGetHalt(pThreadSet)==0 ){
+    int iKey;
+
+    /* Perform a read operation on an arbitrarily selected key. */
+    iKey = (testPrngValue(iPrng++) % p->param.nKey);
+    dbReadOperation(&p->param, pDb, xMt1Delay, (void *)&delay, iKey, &rc);
+    if( rc ) continue;
+    nRead++;
+
+    /* Attempt to write an arbitrary key value pair (and update the associated
+    ** checksum entries). dbWriteOperation() returns 1 if the write is
+    ** successful, or 0 if it failed with an LSM_BUSY error.  */
+    if( eType==MT1_THREAD_RDWR ){
+      char aValue[50];
+      char aRnd[25];
+
+      iKey = (testPrngValue(iPrng++) % p->param.nKey);
+      testPrngString(iPrng, aRnd, sizeof(aRnd));
+      iPrng += sizeof(aRnd);
+      snprintf(aValue, sizeof(aValue), "%d.%s", iThread, aRnd);
+      nWrite += dbWriteOperation(&p->param, pDb, iKey, aValue, &rc);
+    }
+  }
+  testClose(&pDb);
+
+  /* If an error has occured, set the thread error code and the threadset 
+  ** halt flag to tell the other test threads to halt. Otherwise, set the
+  ** thread error code to 0 and post a message with the number of read
+  ** and write operations completed.  */
+  if( rc ){
+    testThreadSetResult(pThreadSet, iThread, rc, 0);
+    testThreadSetHalt(pThreadSet);
+  }else{
+    testThreadSetResult(pThreadSet, iThread, 0, "r/w: %d/%d", nRead, nWrite);
+  }
+}
+
+static void do_test_mt1(
+  const char *zSystem,            /* Database system name */
+  const char *zPattern,           /* Run test cases that match this pattern */
+  int *pRc                        /* IN/OUT: Error code */
+){
+  Mt1Test aTest[] = {
+    /* param, nReadwrite, nFastReader, nSlowReader, nMs, zSystem */
+    { {10, 1000},     4, 0, 0,   10000,   0 },
+    { {10, 1000},     4, 4, 2,   100000,  0 },
+    { {10, 100000},   4, 0, 0,   10000,   0 },
+    { {10, 100000},   4, 4, 2,   100000,  0 },
+  };
+  int i;
+
+  for(i=0; *pRc==0 && i<ArraySize(aTest); i++){
+    Mt1Test *p = &aTest[i];
+    int bRun = testCaseBegin(pRc, zPattern, 
+        "mt1.%s.db=%d,%d.ms=%d.rdwr=%d.fast=%d.slow=%d", 
+        zSystem, p->param.nFanout, p->param.nKey, 
+        p->nMs, p->nReadwrite, p->nFastReader, p->nSlowReader
+    );
+    if( bRun ){
+      TestDb *pDb;
+      ThreadSet *pSet;
+      int iThread;
+      int nThread;
+
+      p->zSystem = zSystem;
+      pDb = testOpen(zSystem, 1, pRc);
+
+      nThread = p->nReadwrite + p->nFastReader + p->nSlowReader;
+      pSet = testThreadInit(nThread);
+      for(iThread=0; *pRc==0 && iThread<nThread; iThread++){
+        testThreadLaunch(pSet, iThread, mt1Main, (void *)p);
+      }
+
+      testThreadWait(pSet, p->nMs);
+      for(iThread=0; *pRc==0 && iThread<nThread; iThread++){
+        *pRc = testThreadGetResult(pSet, iThread, 0);
+      }
+      testCaseFinish(*pRc);
+
+      for(iThread=0; *pRc==0 && iThread<nThread; iThread++){
+        const char *zMsg = 0;
+        *pRc = testThreadGetResult(pSet, iThread, &zMsg);
+        printf("  Info: thread %d (%d): %s\n", iThread, *pRc, zMsg);
+      }
+
+      testThreadShutdown(pSet);
+      testClose(&pDb);
+    }
+  }
+}
+
+void test_mt(
+  const char *zSystem,            /* Database system name */
+  const char *zPattern,           /* Run test cases that match this pattern */
+  int *pRc                        /* IN/OUT: Error code */
+){
+  if( testThreadSupport()==0 ) return;
+  do_test_mt1(zSystem, zPattern, pRc);
+}
diff --git a/ext/lsm1/lsm-test/lsmtest6.c b/ext/lsm1/lsm-test/lsmtest6.c
new file mode 100644
index 0000000000000000000000000000000000000000..a61b738b8faf354a2ec688e141507585484b9753
--- /dev/null
+++ b/ext/lsm1/lsm-test/lsmtest6.c
@@ -0,0 +1,661 @@
+
+#include "lsmtest.h"
+
+typedef struct OomTest OomTest;
+struct OomTest {
+  lsm_env *pEnv;
+  int iNext;                      /* Next value to pass to testMallocOom() */
+  int nFail;                      /* Number of OOM events injected */
+  int bEnable;
+  int rc;                         /* Test case error code */
+};
+
+static void testOomStart(OomTest *p){
+  memset(p, 0, sizeof(OomTest));
+  p->iNext = 1;
+  p->bEnable = 1;
+  p->nFail = 1;
+  p->pEnv = tdb_lsm_env();
+}
+
+static void xOomHook(OomTest *p){
+  p->nFail++;
+}
+
+static int testOomContinue(OomTest *p){
+  if( p->rc!=0 || (p->iNext>1 && p->nFail==0) ){
+    return 0;
+  }
+  p->nFail = 0;
+  testMallocOom(p->pEnv, p->iNext, 0, (void (*)(void*))xOomHook, (void *)p);
+  return 1;
+}
+
+static void testOomEnable(OomTest *p, int bEnable){
+  p->bEnable = bEnable;
+  testMallocOomEnable(p->pEnv, bEnable);
+}
+
+static void testOomNext(OomTest *p){
+  p->iNext++;
+}
+
+static int testOomHit(OomTest *p){
+  return (p->nFail>0);
+}
+
+static int testOomFinish(OomTest *p){
+  return p->rc;
+}
+
+static void testOomAssert(OomTest *p, int bVal){
+  if( bVal==0 ){
+    test_failed();
+    p->rc = 1;
+  }
+}
+
+/*
+** Test that the error code matches the state of the OomTest object passed
+** as the first argument. Specifically, check that rc is LSM_NOMEM if an 
+** OOM error has already been injected, or LSM_OK if not.
+*/
+static void testOomAssertRc(OomTest *p, int rc){
+  testOomAssert(p, rc==LSM_OK || rc==LSM_NOMEM);
+  testOomAssert(p, testOomHit(p)==(rc==LSM_NOMEM) || p->bEnable==0 );
+}
+
+static void testOomOpen(
+  OomTest *pOom,
+  const char *zName,
+  lsm_db **ppDb,
+  int *pRc
+){
+  if( *pRc==LSM_OK ){
+    int rc;
+    rc = lsm_new(tdb_lsm_env(), ppDb);
+    if( rc==LSM_OK ) rc = lsm_open(*ppDb, zName);
+    testOomAssertRc(pOom, rc);
+    *pRc = rc;
+  }
+}
+
+static void testOomFetch(
+  OomTest *pOom,
+  lsm_db *pDb,
+  void *pKey, int nKey,
+  void *pVal, int nVal,
+  int *pRc
+){
+  testOomAssertRc(pOom, *pRc);
+  if( *pRc==LSM_OK ){
+    lsm_cursor *pCsr;
+    int rc;
+
+    rc = lsm_csr_open(pDb, &pCsr);
+    if( rc==LSM_OK ) rc = lsm_csr_seek(pCsr, pKey, nKey, 0);
+    testOomAssertRc(pOom, rc);
+
+    if( rc==LSM_OK ){
+      const void *p; int n;
+      testOomAssert(pOom, lsm_csr_valid(pCsr));
+
+      rc = lsm_csr_key(pCsr, &p, &n);
+      testOomAssertRc(pOom, rc);
+      testOomAssert(pOom, rc!=LSM_OK || (n==nKey && memcmp(pKey, p, nKey)==0) );
+    }
+
+    if( rc==LSM_OK ){
+      const void *p; int n;
+      testOomAssert(pOom, lsm_csr_valid(pCsr));
+
+      rc = lsm_csr_value(pCsr, &p, &n);
+      testOomAssertRc(pOom, rc);
+      testOomAssert(pOom, rc!=LSM_OK || (n==nVal && memcmp(pVal, p, nVal)==0) );
+    }
+
+    lsm_csr_close(pCsr);
+    *pRc = rc;
+  }
+}
+
+static void testOomWrite(
+  OomTest *pOom,
+  lsm_db *pDb,
+  void *pKey, int nKey,
+  void *pVal, int nVal,
+  int *pRc
+){
+  testOomAssertRc(pOom, *pRc);
+  if( *pRc==LSM_OK ){
+    int rc;
+
+    rc = lsm_insert(pDb, pKey, nKey, pVal, nVal);
+    testOomAssertRc(pOom, rc);
+
+    *pRc = rc;
+  }
+}
+
+
+static void testOomFetchStr(
+  OomTest *pOom,
+  lsm_db *pDb,
+  const char *zKey,
+  const char *zVal,
+  int *pRc
+){
+  int nKey = strlen(zKey);
+  int nVal = strlen(zVal);
+  testOomFetch(pOom, pDb, (void *)zKey, nKey, (void *)zVal, nVal, pRc);
+}
+
+static void testOomFetchData(
+  OomTest *pOom,
+  lsm_db *pDb,
+  Datasource *pData,
+  int iKey,
+  int *pRc
+){
+  void *pKey; int nKey;
+  void *pVal; int nVal;
+  testDatasourceEntry(pData, iKey, &pKey, &nKey, &pVal, &nVal);
+  testOomFetch(pOom, pDb, pKey, nKey, pVal, nVal, pRc);
+}
+
+static void testOomWriteStr(
+  OomTest *pOom,
+  lsm_db *pDb,
+  const char *zKey,
+  const char *zVal,
+  int *pRc
+){
+  int nKey = strlen(zKey);
+  int nVal = strlen(zVal);
+  testOomWrite(pOom, pDb, (void *)zKey, nKey, (void *)zVal, nVal, pRc);
+}
+
+static void testOomWriteData(
+  OomTest *pOom,
+  lsm_db *pDb,
+  Datasource *pData,
+  int iKey,
+  int *pRc
+){
+  void *pKey; int nKey;
+  void *pVal; int nVal;
+  testDatasourceEntry(pData, iKey, &pKey, &nKey, &pVal, &nVal);
+  testOomWrite(pOom, pDb, pKey, nKey, pVal, nVal, pRc);
+}
+
+static void testOomScan(
+  OomTest *pOom, 
+  lsm_db *pDb, 
+  int bReverse,
+  const void *pKey, int nKey,
+  int nScan,
+  int *pRc
+){
+  if( *pRc==0 ){
+    int rc;
+    int iScan = 0;
+    lsm_cursor *pCsr;
+    int (*xAdvance)(lsm_cursor *) = 0;
+    
+
+    rc = lsm_csr_open(pDb, &pCsr);
+    testOomAssertRc(pOom, rc);
+
+    if( rc==LSM_OK ){
+      if( bReverse ){
+        rc = lsm_csr_seek(pCsr, pKey, nKey, LSM_SEEK_LE);
+        xAdvance = lsm_csr_prev;
+      }else{
+        rc = lsm_csr_seek(pCsr, pKey, nKey, LSM_SEEK_GE);
+        xAdvance = lsm_csr_next;
+      }
+    }
+    testOomAssertRc(pOom, rc);
+
+    while( rc==LSM_OK && lsm_csr_valid(pCsr) && iScan<nScan ){
+      const void *p; int n;
+
+      rc = lsm_csr_key(pCsr, &p, &n);
+      testOomAssertRc(pOom, rc);
+      if( rc==LSM_OK ){
+        rc = lsm_csr_value(pCsr, &p, &n);
+        testOomAssertRc(pOom, rc);
+      }
+      if( rc==LSM_OK ){
+        rc = xAdvance(pCsr);
+        testOomAssertRc(pOom, rc);
+      }
+      iScan++;
+    }
+
+    lsm_csr_close(pCsr);
+    *pRc = rc;
+  }
+}
+
+#define LSMTEST6_TESTDB "testdb.lsm" 
+
+void testDeleteLsmdb(const char *zFile){
+  char *zLog = testMallocPrintf("%s-log", zFile);
+  char *zShm = testMallocPrintf("%s-shm", zFile);
+  unlink(zFile);
+  unlink(zLog);
+  unlink(zShm);
+  testFree(zLog);
+  testFree(zShm);
+}
+
+static void copy_file(const char *zFrom, const char *zTo, int isDatabase){
+
+  if( access(zFrom, F_OK) ){
+    unlink(zTo);
+  }else{
+    int fd1;
+    int fd2;
+    off_t sz;
+    off_t i;
+    struct stat buf;
+    u8 *aBuf;
+
+    fd1 = open(zFrom, O_RDONLY | _O_BINARY, 0644);
+    fd2 = open(zTo, O_RDWR | O_CREAT | _O_BINARY, 0644);
+
+    fstat(fd1, &buf);
+    sz = buf.st_size;
+    ftruncate(fd2, sz);
+
+    aBuf = testMalloc(4096);
+    for(i=0; i<sz; i+=4096){
+      int bLockPage = isDatabase && i == 0;
+      int nByte = MIN((bLockPage ? 4066 : 4096), sz - i);
+      memset(aBuf, 0, 4096);
+      read(fd1, aBuf, nByte);
+      write(fd2, aBuf, nByte);
+      if( bLockPage ){
+        lseek(fd1, 4096, SEEK_SET);
+        lseek(fd2, 4096, SEEK_SET);
+      }
+    }
+    testFree(aBuf);
+
+    close(fd1);
+    close(fd2);
+  }
+}
+
+void testCopyLsmdb(const char *zFrom, const char *zTo){
+  char *zLog1 = testMallocPrintf("%s-log", zFrom);
+  char *zLog2 = testMallocPrintf("%s-log", zTo);
+  char *zShm1 = testMallocPrintf("%s-shm", zFrom);
+  char *zShm2 = testMallocPrintf("%s-shm", zTo);
+
+  unlink(zShm2);
+  unlink(zLog2);
+  unlink(zTo);
+  copy_file(zFrom, zTo, 1);
+  copy_file(zLog1, zLog2, 0);
+  copy_file(zShm1, zShm2, 0);
+
+  testFree(zLog1); testFree(zLog2); testFree(zShm1); testFree(zShm2);
+}
+
+/*
+** File zFile is the path to a database. This function makes backups
+** of the database file and its log as follows:
+**
+**     cp $(zFile)         $(zFile)-save
+**     cp $(zFile)-$(zAux) $(zFile)-save-$(zAux)
+**
+** Function testRestoreDb() can be used to copy the files back in the
+** other direction.
+*/
+void testSaveDb(const char *zFile, const char *zAux){
+  char *zLog = testMallocPrintf("%s-%s", zFile, zAux);
+  char *zFileSave = testMallocPrintf("%s-save", zFile);
+  char *zLogSave = testMallocPrintf("%s-%s-save", zFile, zAux);
+
+  unlink(zFileSave);
+  unlink(zLogSave);
+  copy_file(zFile, zFileSave, 1);
+  copy_file(zLog, zLogSave, 0);
+
+  testFree(zLog); testFree(zFileSave); testFree(zLogSave);
+}
+
+/*
+** File zFile is the path to a database. This function restores
+** a backup of the database made by a previous call to testSaveDb().
+** Specifically, it does the equivalent of:
+**
+**     cp $(zFile)-save         $(zFile)
+**     cp $(zFile)-save-$(zAux) $(zFile)-$(zAux)
+*/
+void testRestoreDb(const char *zFile, const char *zAux){
+  char *zLog = testMallocPrintf("%s-%s", zFile, zAux);
+  char *zFileSave = testMallocPrintf("%s-save", zFile);
+  char *zLogSave = testMallocPrintf("%s-%s-save", zFile, zAux);
+
+  copy_file(zFileSave, zFile, 1);
+  copy_file(zLogSave, zLog, 0);
+
+  testFree(zLog); testFree(zFileSave); testFree(zLogSave);
+}
+
+
+static int lsmWriteStr(lsm_db *pDb, const char *zKey, const char *zVal){
+  int nKey = strlen(zKey);
+  int nVal = strlen(zVal);
+  return lsm_insert(pDb, (void *)zKey, nKey, (void *)zVal, nVal);
+}
+
+static void setup_delete_db(void){
+  testDeleteLsmdb(LSMTEST6_TESTDB);
+}
+
+/*
+** Create a small database. With the following content:
+**
+**    "one"   -> "one"
+**    "two"   -> "four"
+**    "three" -> "nine"
+**    "four"  -> "sixteen"
+**    "five"  -> "twentyfive"
+**    "six"   -> "thirtysix"
+**    "seven" -> "fourtynine"
+**    "eight" -> "sixtyfour"
+*/
+static void setup_populate_db(void){
+  const char *azStr[] = {
+    "one",   "one",
+    "two",   "four",
+    "three", "nine",
+    "four",  "sixteen",
+    "five",  "twentyfive",
+    "six",   "thirtysix",
+    "seven", "fourtynine",
+    "eight", "sixtyfour",
+  };
+  int rc;
+  int ii;
+  lsm_db *pDb;
+
+  testDeleteLsmdb(LSMTEST6_TESTDB);
+
+  rc = lsm_new(tdb_lsm_env(), &pDb);
+  if( rc==LSM_OK ) rc = lsm_open(pDb, LSMTEST6_TESTDB);
+
+  for(ii=0; rc==LSM_OK && ii<ArraySize(azStr); ii+=2){
+    rc = lsmWriteStr(pDb, azStr[ii], azStr[ii+1]);
+  }
+  lsm_close(pDb);
+
+  testSaveDb(LSMTEST6_TESTDB, "log");
+  assert( rc==LSM_OK );
+}
+
+static Datasource *getDatasource(void){
+  const DatasourceDefn defn = { TEST_DATASOURCE_RANDOM, 10, 15, 200, 250 };
+  return testDatasourceNew(&defn);
+}
+
+/*
+** Set up a database file with the following properties:
+**
+**   * Page size is 1024 bytes.
+**   * Block size is 64 KB.
+**   * Contains 5000 key-value pairs starting at 0 from the
+**     datasource returned getDatasource().
+*/
+static void setup_populate_db2(void){
+  Datasource *pData;
+  int ii;
+  int rc;
+  int nBlocksize = 64*1024;
+  int nPagesize = 1024;
+  int nWritebuffer = 4*1024;
+  lsm_db *pDb;
+
+  testDeleteLsmdb(LSMTEST6_TESTDB);
+  rc = lsm_new(tdb_lsm_env(), &pDb);
+  if( rc==LSM_OK ) rc = lsm_open(pDb, LSMTEST6_TESTDB);
+
+  lsm_config(pDb, LSM_CONFIG_BLOCK_SIZE, &nBlocksize); 
+  lsm_config(pDb, LSM_CONFIG_PAGE_SIZE, &nPagesize); 
+  lsm_config(pDb, LSM_CONFIG_AUTOFLUSH, &nWritebuffer); 
+
+  pData = getDatasource();
+  for(ii=0; rc==LSM_OK && ii<5000; ii++){
+    void *pKey; int nKey;
+    void *pVal; int nVal;
+    testDatasourceEntry(pData, ii, &pKey, &nKey, &pVal, &nVal);
+    lsm_insert(pDb, pKey, nKey, pVal, nVal);
+  }
+  testDatasourceFree(pData);
+  lsm_close(pDb);
+
+  testSaveDb(LSMTEST6_TESTDB, "log");
+  assert( rc==LSM_OK );
+}
+
+/*
+** Test the results of OOM conditions in lsm_new().
+*/
+static void simple_oom_1(OomTest *pOom){
+  int rc;
+  lsm_db *pDb;
+
+  rc = lsm_new(tdb_lsm_env(), &pDb);
+  testOomAssertRc(pOom, rc);
+
+  lsm_close(pDb);
+}
+
+/*
+** Test the results of OOM conditions in lsm_open().
+*/
+static void simple_oom_2(OomTest *pOom){
+  int rc;
+  lsm_db *pDb;
+
+  rc = lsm_new(tdb_lsm_env(), &pDb);
+  if( rc==LSM_OK ){
+    rc = lsm_open(pDb, "testdb.lsm");
+  }
+  testOomAssertRc(pOom, rc);
+
+  lsm_close(pDb);
+}
+
+/*
+** Test the results of OOM conditions in simple fetch operations.
+*/
+static void simple_oom_3(OomTest *pOom){
+  int rc = LSM_OK;
+  lsm_db *pDb;
+
+  testOomOpen(pOom, LSMTEST6_TESTDB, &pDb, &rc);
+
+  testOomFetchStr(pOom, pDb, "four",  "sixteen",    &rc);
+  testOomFetchStr(pOom, pDb, "seven", "fourtynine", &rc);
+  testOomFetchStr(pOom, pDb, "one",   "one",        &rc);
+  testOomFetchStr(pOom, pDb, "eight", "sixtyfour",  &rc);
+
+  lsm_close(pDb);
+}
+
+/*
+** Test the results of OOM conditions in simple write operations.
+*/
+static void simple_oom_4(OomTest *pOom){
+  int rc = LSM_OK;
+  lsm_db *pDb;
+
+  testDeleteLsmdb(LSMTEST6_TESTDB);
+  testOomOpen(pOom, LSMTEST6_TESTDB, &pDb, &rc);
+
+  testOomWriteStr(pOom, pDb, "123", "onetwothree", &rc);
+  testOomWriteStr(pOom, pDb, "456", "fourfivesix", &rc);
+  testOomWriteStr(pOom, pDb, "789", "seveneightnine", &rc);
+  testOomWriteStr(pOom, pDb, "123", "teneleventwelve", &rc);
+  testOomWriteStr(pOom, pDb, "456", "fourteenfifteensixteen", &rc);
+
+  lsm_close(pDb);
+}
+
+static void simple_oom_5(OomTest *pOom){
+  Datasource *pData = getDatasource();
+  int rc = LSM_OK;
+  lsm_db *pDb;
+
+  testRestoreDb(LSMTEST6_TESTDB, "log");
+  testOomOpen(pOom, LSMTEST6_TESTDB, &pDb, &rc);
+
+  testOomFetchData(pOom, pDb, pData, 3333, &rc);
+  testOomFetchData(pOom, pDb, pData, 0, &rc);
+  testOomFetchData(pOom, pDb, pData, 4999, &rc);
+
+  lsm_close(pDb);
+  testDatasourceFree(pData);
+}
+
+static void simple_oom_6(OomTest *pOom){
+  Datasource *pData = getDatasource();
+  int rc = LSM_OK;
+  lsm_db *pDb;
+
+  testRestoreDb(LSMTEST6_TESTDB, "log");
+  testOomOpen(pOom, LSMTEST6_TESTDB, &pDb, &rc);
+
+  testOomWriteData(pOom, pDb, pData, 5000, &rc);
+  testOomWriteData(pOom, pDb, pData, 5001, &rc);
+  testOomWriteData(pOom, pDb, pData, 5002, &rc);
+  testOomFetchData(pOom, pDb, pData, 5001, &rc);
+  testOomFetchData(pOom, pDb, pData, 1234, &rc);
+
+  lsm_close(pDb);
+  testDatasourceFree(pData);
+}
+
+static void simple_oom_7(OomTest *pOom){
+  Datasource *pData = getDatasource();
+  int rc = LSM_OK;
+  lsm_db *pDb;
+
+  testRestoreDb(LSMTEST6_TESTDB, "log");
+  testOomOpen(pOom, LSMTEST6_TESTDB, &pDb, &rc);
+  testOomScan(pOom, pDb, 0, "abc", 3, 20, &rc);
+  lsm_close(pDb);
+  testDatasourceFree(pData);
+}
+
+static void simple_oom_8(OomTest *pOom){
+  Datasource *pData = getDatasource();
+  int rc = LSM_OK;
+  lsm_db *pDb;
+  testRestoreDb(LSMTEST6_TESTDB, "log");
+  testOomOpen(pOom, LSMTEST6_TESTDB, &pDb, &rc);
+  testOomScan(pOom, pDb, 1, "xyz", 3, 20, &rc);
+  lsm_close(pDb);
+  testDatasourceFree(pData);
+}
+
+/*
+** This test case has two clients connected to a database. The first client
+** hits an OOM while writing to the database. Check that the second 
+** connection is still able to query the db following the OOM.
+*/
+static void simple_oom2_1(OomTest *pOom){
+  const int nRecord = 100;        /* Number of records initially in db */
+  const int nIns = 10;            /* Number of records inserted with OOM */
+
+  Datasource *pData = getDatasource();
+  int rc = LSM_OK;
+  lsm_db *pDb1;
+  lsm_db *pDb2;
+  int i;
+
+  testDeleteLsmdb(LSMTEST6_TESTDB);
+
+  /* Open the two connections. Initialize the in-memory tree so that it
+  ** contains 100 records. Do all this with OOM injection disabled. */
+  testOomEnable(pOom, 0);
+  testOomOpen(pOom, LSMTEST6_TESTDB, &pDb1, &rc);
+  testOomOpen(pOom, LSMTEST6_TESTDB, &pDb2, &rc);
+  for(i=0; i<nRecord; i++){
+    testOomWriteData(pOom, pDb1, pData, i, &rc);
+  }
+  testOomEnable(pOom, 1);
+  assert( rc==0 );
+
+  /* Insert 10 more records using pDb1. Stop when an OOM is encountered. */
+  for(i=nRecord; i<nRecord+nIns; i++){
+    testOomWriteData(pOom, pDb1, pData, i, &rc);
+    if( rc ) break;
+  }
+  testOomAssertRc(pOom, rc);
+
+  /* Switch off OOM injection. Write a few rows using pDb2. Then check
+  ** that the database may be successfully queried.  */
+  testOomEnable(pOom, 0);
+  rc = 0;
+  for(; i<nRecord+nIns && rc==0; i++){
+    testOomWriteData(pOom, pDb2, pData, i, &rc);
+  }
+  for(i=0; i<nRecord+nIns; i++) testOomFetchData(pOom, pDb2, pData, i, &rc);
+  testOomEnable(pOom, 1);
+
+  lsm_close(pDb1);
+  lsm_close(pDb2);
+  testDatasourceFree(pData);
+}
+
+
+static void do_test_oom1(const char *zPattern, int *pRc){
+  struct SimpleOom {
+    const char *zName;
+    void (*xSetup)(void);
+    void (*xFunc)(OomTest *);
+  } aSimple[] = {
+    { "oom1.lsm.1", setup_delete_db,    simple_oom_1 },
+    { "oom1.lsm.2", setup_delete_db,    simple_oom_2 },
+    { "oom1.lsm.3", setup_populate_db,  simple_oom_3 },
+    { "oom1.lsm.4", setup_delete_db,    simple_oom_4 },
+    { "oom1.lsm.5", setup_populate_db2, simple_oom_5 },
+    { "oom1.lsm.6", setup_populate_db2, simple_oom_6 },
+    { "oom1.lsm.7", setup_populate_db2, simple_oom_7 },
+    { "oom1.lsm.8", setup_populate_db2, simple_oom_8 },
+
+    { "oom2.lsm.1", setup_delete_db,    simple_oom2_1 },
+  };
+  int i;
+
+  for(i=0; i<ArraySize(aSimple); i++){
+    if( *pRc==0 && testCaseBegin(pRc, zPattern, "%s", aSimple[i].zName) ){
+      OomTest t;
+
+      if( aSimple[i].xSetup ){
+        aSimple[i].xSetup();
+      }
+
+      for(testOomStart(&t); testOomContinue(&t); testOomNext(&t)){
+        aSimple[i].xFunc(&t);
+      }
+
+      printf("(%d injections).", t.iNext-2);
+      testCaseFinish( (*pRc = testOomFinish(&t)) );
+      testMallocOom(tdb_lsm_env(), 0, 0, 0, 0);
+    }
+  }
+}
+
+void test_oom(
+  const char *zPattern,           /* Run test cases that match this pattern */
+  int *pRc                        /* IN/OUT: Error code */
+){
+  do_test_oom1(zPattern, pRc);
+}
diff --git a/ext/lsm1/lsm-test/lsmtest7.c b/ext/lsm1/lsm-test/lsmtest7.c
new file mode 100644
index 0000000000000000000000000000000000000000..2d26b53a7460f8eda0f3cfe002c99f958aa68b89
--- /dev/null
+++ b/ext/lsm1/lsm-test/lsmtest7.c
@@ -0,0 +1,206 @@
+
+
+#include "lsmtest.h"
+
+
+/*
+** Test that the rules for when lsm_csr_next() and lsm_csr_prev() are
+** enforced. Specifically:
+**
+**   * Both functions always return LSM_MISUSE if the cursor is at EOF
+**     when they are called.
+**
+**   * lsm_csr_next() may only be used after lsm_csr_seek(LSM_SEEK_GE) or 
+**     lsm_csr_first(). 
+**
+**   * lsm_csr_prev() may only be used after lsm_csr_seek(LSM_SEEK_LE) or 
+**     lsm_csr_last().
+*/
+static void do_test_api1_lsm(lsm_db *pDb, int *pRc){
+  int ret;
+  lsm_cursor *pCsr;
+  lsm_cursor *pCsr2;
+  int nKey;
+  const void *pKey;
+
+  ret = lsm_csr_open(pDb, &pCsr);
+  testCompareInt(LSM_OK, ret, pRc);
+
+  ret = lsm_csr_next(pCsr);
+  testCompareInt(LSM_MISUSE, ret, pRc);
+  ret = lsm_csr_prev(pCsr);
+  testCompareInt(LSM_MISUSE, ret, pRc);
+
+  ret = lsm_csr_seek(pCsr, "jjj", 3, LSM_SEEK_GE);
+  testCompareInt(LSM_OK, ret, pRc);
+  ret = lsm_csr_next(pCsr);
+  testCompareInt(LSM_OK, ret, pRc);
+  ret = lsm_csr_prev(pCsr);
+  testCompareInt(LSM_MISUSE, ret, pRc);
+
+  ret = lsm_csr_seek(pCsr, "jjj", 3, LSM_SEEK_LE);
+  testCompareInt(LSM_OK, ret, pRc);
+  ret = lsm_csr_next(pCsr);
+  testCompareInt(LSM_MISUSE, ret, pRc);
+  ret = lsm_csr_prev(pCsr);
+  testCompareInt(LSM_OK, ret, pRc);
+
+  ret = lsm_csr_seek(pCsr, "jjj", 3, LSM_SEEK_LEFAST);
+  testCompareInt(LSM_OK, ret, pRc);
+  ret = lsm_csr_next(pCsr);
+  testCompareInt(LSM_MISUSE, ret, pRc);
+  ret = lsm_csr_prev(pCsr);
+  testCompareInt(LSM_MISUSE, ret, pRc);
+
+  ret = lsm_csr_key(pCsr, &pKey, &nKey);
+  testCompareInt(LSM_OK, ret, pRc);
+
+  ret = lsm_csr_open(pDb, &pCsr2);
+  testCompareInt(LSM_OK, ret, pRc);
+
+  ret = lsm_csr_seek(pCsr2, pKey, nKey, LSM_SEEK_EQ);
+  testCompareInt(LSM_OK, ret, pRc);
+  testCompareInt(1, lsm_csr_valid(pCsr2), pRc);
+  ret = lsm_csr_next(pCsr2);
+  testCompareInt(LSM_MISUSE, ret, pRc);
+  ret = lsm_csr_prev(pCsr2);
+  testCompareInt(LSM_MISUSE, ret, pRc);
+
+  lsm_csr_close(pCsr2);
+
+  ret = lsm_csr_first(pCsr);
+  testCompareInt(LSM_OK, ret, pRc);
+  ret = lsm_csr_next(pCsr);
+  testCompareInt(LSM_OK, ret, pRc);
+  ret = lsm_csr_prev(pCsr);
+  testCompareInt(LSM_MISUSE, ret, pRc);
+
+  ret = lsm_csr_last(pCsr);
+  testCompareInt(LSM_OK, ret, pRc);
+  ret = lsm_csr_prev(pCsr);
+  testCompareInt(LSM_OK, ret, pRc);
+  ret = lsm_csr_next(pCsr);
+  testCompareInt(LSM_MISUSE, ret, pRc);
+
+  ret = lsm_csr_first(pCsr);
+  while( lsm_csr_valid(pCsr) ){
+    ret = lsm_csr_next(pCsr);
+    testCompareInt(LSM_OK, ret, pRc);
+  }
+  ret = lsm_csr_next(pCsr);
+  testCompareInt(LSM_OK, ret, pRc);
+  ret = lsm_csr_prev(pCsr);
+  testCompareInt(LSM_MISUSE, ret, pRc);
+
+  ret = lsm_csr_last(pCsr);
+  while( lsm_csr_valid(pCsr) ){
+    ret = lsm_csr_prev(pCsr);
+    testCompareInt(LSM_OK, ret, pRc);
+  }
+  ret = lsm_csr_prev(pCsr);
+  testCompareInt(LSM_OK, ret, pRc);
+  ret = lsm_csr_next(pCsr);
+  testCompareInt(LSM_MISUSE, ret, pRc);
+
+  lsm_csr_close(pCsr);
+}
+
+static void do_test_api1(const char *zPattern, int *pRc){
+  if( testCaseBegin(pRc, zPattern, "api1.lsm") ){
+    const DatasourceDefn defn = { TEST_DATASOURCE_RANDOM, 10, 15, 200, 250 };
+    Datasource *pData;
+    TestDb *pDb;
+    int rc = 0;
+
+    pDb = testOpen("lsm_lomem", 1, &rc);
+    pData = testDatasourceNew(&defn);
+    testWriteDatasourceRange(pDb, pData, 0, 1000, pRc);
+
+    do_test_api1_lsm(tdb_lsm(pDb), pRc);
+
+    testDatasourceFree(pData);
+    testClose(&pDb);
+
+    testCaseFinish(*pRc);
+  }
+}
+
+static lsm_db *newLsmConnection(
+  const char *zDb, 
+  int nPgsz, 
+  int nBlksz,
+  int *pRc
+){
+  lsm_db *db = 0;
+  if( *pRc==0 ){
+    int n1 = nPgsz;
+    int n2 = nBlksz;
+    *pRc = lsm_new(tdb_lsm_env(), &db);
+    if( *pRc==0 ){
+      if( n1 ) lsm_config(db, LSM_CONFIG_PAGE_SIZE, &n1);
+      if( n2 ) lsm_config(db, LSM_CONFIG_BLOCK_SIZE, &n2);
+      *pRc = lsm_open(db, "testdb.lsm");
+    }
+  }
+  return db;
+}
+
+static void testPagesize(lsm_db *db, int nPgsz, int nBlksz, int *pRc){
+  if( *pRc==0 ){
+    int n1 = 0;
+    int n2 = 0;
+
+    lsm_config(db, LSM_CONFIG_PAGE_SIZE, &n1);
+    lsm_config(db, LSM_CONFIG_BLOCK_SIZE, &n2);
+
+    testCompareInt(n1, nPgsz, pRc);
+    testCompareInt(n2, nBlksz, pRc);
+  }
+}
+
+/*
+** Test case "api2" tests that the default page and block sizes of a 
+** database may only be modified before lsm_open() is called. And that
+** after lsm_open() is called lsm_config() may be used to read the 
+** actual page and block size of the db.
+*/
+static void do_test_api2(const char *zPattern, int *pRc){
+  if( *pRc==0 && testCaseBegin(pRc, zPattern, "api2.lsm") ){
+    lsm_db *db1 = 0;
+    lsm_db *db2 = 0;
+
+    testDeleteLsmdb("testdb.lsm");
+    db1 = newLsmConnection("testdb.lsm", 0, 0, pRc);
+    testPagesize(db1, 4096, 1024, pRc);
+    db2 = newLsmConnection("testdb.lsm", 1024, 64*1024, pRc);
+    testPagesize(db2, 4096, 1024, pRc);
+    lsm_close(db1);
+    lsm_close(db2);
+
+    testDeleteLsmdb("testdb.lsm");
+    db1 = newLsmConnection("testdb.lsm", 1024, 64*1024, pRc);
+    testPagesize(db1, 1024, 64*1024, pRc);
+    db2 = newLsmConnection("testdb.lsm", 0, 0, pRc);
+    testPagesize(db2, 1024, 64*1024, pRc);
+    lsm_close(db1);
+    lsm_close(db2);
+
+    testDeleteLsmdb("testdb.lsm");
+    db1 = newLsmConnection("testdb.lsm", 8192, 2*1024, pRc);
+    testPagesize(db1, 8192, 2*1024, pRc);
+    db2 = newLsmConnection("testdb.lsm", 1024, 64*1024, pRc);
+    testPagesize(db2, 8192, 2*1024, pRc);
+    lsm_close(db1);
+    lsm_close(db2);
+
+    testCaseFinish(*pRc);
+  }
+}
+
+void test_api(
+  const char *zPattern,           /* Run test cases that match this pattern */
+  int *pRc                        /* IN/OUT: Error code */
+){
+  do_test_api1(zPattern, pRc);
+  do_test_api2(zPattern, pRc);
+}
diff --git a/ext/lsm1/lsm-test/lsmtest8.c b/ext/lsm1/lsm-test/lsmtest8.c
new file mode 100644
index 0000000000000000000000000000000000000000..7efa0dfa6c36a25da7bacf299c3ec7b090066a5f
--- /dev/null
+++ b/ext/lsm1/lsm-test/lsmtest8.c
@@ -0,0 +1,324 @@
+
+/*
+** This file contains test cases to verify that "live-recovery" following
+** a mid-transaction failure of a writer process.
+*/
+
+
+/* 
+** This test file includes lsmInt.h to get access to the definition of the
+** ShmHeader structure. This is required to cause strategic damage to the
+** shared memory header as part of recovery testing.
+*/
+#include "lsmInt.h"
+
+#include "lsmtest.h"
+
+typedef struct SetupStep SetupStep;
+struct SetupStep {
+  int bFlush;                     /* Flush to disk and checkpoint */
+  int iInsStart;                  /* First key-value from ds to insert */
+  int nIns;                       /* Number of rows to insert */
+  int iDelStart;                  /* First key from ds to delete */
+  int nDel;                       /* Number of rows to delete */
+};
+
+static void doSetupStep(
+  TestDb *pDb, 
+  Datasource *pData, 
+  const SetupStep *pStep, 
+  int *pRc
+){
+  testWriteDatasourceRange(pDb, pData, pStep->iInsStart, pStep->nIns, pRc);
+  testDeleteDatasourceRange(pDb, pData, pStep->iDelStart, pStep->nDel, pRc);
+  if( *pRc==0 ){
+    int nSave = -1;
+    int nBuf = 64;
+    lsm_db *db = tdb_lsm(pDb);
+
+    lsm_config(db, LSM_CONFIG_AUTOFLUSH, &nSave);
+    lsm_config(db, LSM_CONFIG_AUTOFLUSH, &nBuf);
+    lsm_begin(db, 1);
+    lsm_commit(db, 0);
+    lsm_config(db, LSM_CONFIG_AUTOFLUSH, &nSave);
+
+    *pRc = lsm_work(db, 0, 0, 0);
+    if( *pRc==0 ){
+      *pRc = lsm_checkpoint(db, 0);
+    }
+  }
+}
+
+static void doSetupStepArray(
+  TestDb *pDb, 
+  Datasource *pData, 
+  const SetupStep *aStep, 
+  int nStep
+){
+  int i;
+  for(i=0; i<nStep; i++){
+    int rc = 0;
+    doSetupStep(pDb, pData, &aStep[i], &rc);
+    assert( rc==0 );
+  }
+}
+
+static void setupDatabase1(TestDb *pDb, Datasource **ppData){
+  const SetupStep aStep[] = {
+    { 0,                                  1,     2000, 0, 0 },
+    { 1,                                  0,     0, 0, 0 },
+    { 0,                                  10001, 1000, 0, 0 },
+  };
+  const DatasourceDefn defn = {TEST_DATASOURCE_RANDOM, 12, 16, 100, 500};
+  Datasource *pData;
+
+  pData = testDatasourceNew(&defn);
+  doSetupStepArray(pDb, pData, aStep, ArraySize(aStep));
+  if( ppData ){
+    *ppData = pData;
+  }else{
+    testDatasourceFree(pData);
+  }
+}
+
+#include <stdio.h>
+void testReadFile(const char *zFile, int iOff, void *pOut, int nByte, int *pRc){
+  if( *pRc==0 ){
+    FILE *fd;
+    fd = fopen(zFile, "rb");
+    if( fd==0 ){
+      *pRc = 1;
+    }else{
+      if( 0!=fseek(fd, iOff, SEEK_SET) ){
+        *pRc = 1;
+      }else{
+        assert( nByte>=0 );
+        if( (size_t)nByte!=fread(pOut, 1, nByte, fd) ){
+          *pRc = 1;
+        }
+      }
+      fclose(fd);
+    }
+  }
+}
+
+void testWriteFile(
+  const char *zFile, 
+  int iOff, 
+  void *pOut, 
+  int nByte, 
+  int *pRc
+){
+  if( *pRc==0 ){
+    FILE *fd;
+    fd = fopen(zFile, "r+b");
+    if( fd==0 ){
+      *pRc = 1;
+    }else{
+      if( 0!=fseek(fd, iOff, SEEK_SET) ){
+        *pRc = 1;
+      }else{
+        assert( nByte>=0 );
+        if( (size_t)nByte!=fwrite(pOut, 1, nByte, fd) ){
+          *pRc = 1;
+        }
+      }
+      fclose(fd);
+    }
+  }
+}
+
+static ShmHeader *getShmHeader(const char *zDb){
+  int rc = 0;
+  char *zShm = testMallocPrintf("%s-shm", zDb);
+  ShmHeader *pHdr;
+
+  pHdr = testMalloc(sizeof(ShmHeader));
+  testReadFile(zShm, 0, (void *)pHdr, sizeof(ShmHeader), &rc);
+  assert( rc==0 );
+
+  return pHdr;
+}
+
+/*
+** This function makes a copy of the three files associated with LSM 
+** database zDb (i.e. if zDb is "test.db", it makes copies of "test.db",
+** "test.db-log" and "test.db-shm").
+**
+** It then opens a new database connection to the copy with the xLock() call
+** instrumented so that it appears that some other process already connected
+** to the db (holding a shared lock on DMS2). This prevents recovery from
+** running. Then:
+**
+**    1) Check that the checksum of the database is zCksum. 
+**    2) Write a few keys to the database. Then delete the same keys. 
+**    3) Check that the checksum is zCksum.
+**    4) Flush the db to disk and run a checkpoint. 
+**    5) Check once more that the checksum is still zCksum.
+*/
+static void doLiveRecovery(const char *zDb, const char *zCksum, int *pRc){
+  if( *pRc==LSM_OK ){
+    const DatasourceDefn defn = {TEST_DATASOURCE_RANDOM, 20, 25, 100, 500};
+    Datasource *pData;
+    const char *zCopy = "testcopy.lsm";
+    char zCksum2[TEST_CKSUM_BYTES];
+    TestDb *pDb = 0;
+    int rc;
+
+    pData = testDatasourceNew(&defn);
+
+    testCopyLsmdb(zDb, zCopy);
+    rc = tdb_lsm_open("test_no_recovery=1", zCopy, 0, &pDb);
+    if( rc==0 ){
+      ShmHeader *pHdr;
+      lsm_db *db;
+      testCksumDatabase(pDb, zCksum2);
+      testCompareStr(zCksum, zCksum2, &rc);
+
+      testWriteDatasourceRange(pDb, pData, 1, 10, &rc);
+      testDeleteDatasourceRange(pDb, pData, 1, 10, &rc);
+
+      /* Test that the two tree-headers are now consistent. */
+      pHdr = getShmHeader(zCopy);
+      if( rc==0 && memcmp(&pHdr->hdr1, &pHdr->hdr2, sizeof(pHdr->hdr1)) ){
+        rc = 1;
+      }
+      testFree(pHdr);
+
+      if( rc==0 ){
+        int nBuf = 64;
+        db = tdb_lsm(pDb);
+        lsm_config(db, LSM_CONFIG_AUTOFLUSH, &nBuf);
+        lsm_begin(db, 1);
+        lsm_commit(db, 0);
+        rc = lsm_work(db, 0, 0, 0);
+      }
+
+      testCksumDatabase(pDb, zCksum2);
+      testCompareStr(zCksum, zCksum2, &rc);
+    }
+
+    testDatasourceFree(pData);
+    testClose(&pDb);
+    testDeleteLsmdb(zCopy);
+    *pRc = rc;
+  }
+}
+
+static void doWriterCrash1(int *pRc){
+  const int nWrite = 2000;
+  const int nStep = 10;
+  const int iWriteStart = 20000;
+  int rc = 0;
+  TestDb *pDb = 0;
+  Datasource *pData = 0;
+
+  rc = tdb_lsm_open("autowork=0", "testdb.lsm", 1, &pDb);
+  if( rc==0 ){
+    int iDot = 0;
+    char zCksum[TEST_CKSUM_BYTES];
+    int i;
+    setupDatabase1(pDb, &pData);
+    testCksumDatabase(pDb, zCksum);
+    testBegin(pDb, 2, &rc);
+    for(i=0; rc==0 && i<nWrite; i+=nStep){
+      testCaseProgress(i, nWrite, testCaseNDot(), &iDot);
+      testWriteDatasourceRange(pDb, pData, iWriteStart+i, nStep, &rc);
+      doLiveRecovery("testdb.lsm", zCksum, &rc);
+    }
+  }
+  testCommit(pDb, 0, &rc);
+  testClose(&pDb);
+  testDatasourceFree(pData);
+  *pRc = rc;
+}
+
+/*
+** This test case verifies that inconsistent tree-headers in shared-memory
+** are resolved correctly. 
+*/
+static void doWriterCrash2(int *pRc){
+  int rc = 0;
+  TestDb *pDb = 0;
+  Datasource *pData = 0;
+
+  rc = tdb_lsm_open("autowork=0", "testdb.lsm", 1, &pDb);
+  if( rc==0 ){
+    ShmHeader *pHdr1;
+    ShmHeader *pHdr2;
+    char zCksum1[TEST_CKSUM_BYTES];
+    char zCksum2[TEST_CKSUM_BYTES];
+
+    pHdr1 = testMalloc(sizeof(ShmHeader));
+    pHdr2 = testMalloc(sizeof(ShmHeader));
+    setupDatabase1(pDb, &pData);
+
+    /* Grab a copy of the shared-memory header. And the db checksum */
+    testReadFile("testdb.lsm-shm", 0, (void *)pHdr1, sizeof(ShmHeader), &rc);
+    testCksumDatabase(pDb, zCksum1);
+
+    /* Modify the database */
+    testBegin(pDb, 2, &rc);
+    testWriteDatasourceRange(pDb, pData, 30000, 200, &rc);
+    testCommit(pDb, 0, &rc);
+
+    /* Grab a second copy of the shared-memory header. And the db checksum */
+    testReadFile("testdb.lsm-shm", 0, (void *)pHdr2, sizeof(ShmHeader), &rc);
+    testCksumDatabase(pDb, zCksum2);
+    doLiveRecovery("testdb.lsm", zCksum2, &rc);
+
+    /* If both tree-headers are valid, tree-header-1 is used. */
+    memcpy(&pHdr2->hdr1, &pHdr1->hdr1, sizeof(pHdr1->hdr1));
+    pHdr2->bWriter = 1;
+    testWriteFile("testdb.lsm-shm", 0, (void *)pHdr2, sizeof(ShmHeader), &rc);
+    doLiveRecovery("testdb.lsm", zCksum1, &rc);
+
+    /* If both tree-headers are valid, tree-header-1 is used. */
+    memcpy(&pHdr2->hdr1, &pHdr2->hdr2, sizeof(pHdr1->hdr1));
+    memcpy(&pHdr2->hdr2, &pHdr1->hdr1, sizeof(pHdr1->hdr1));
+    pHdr2->bWriter = 1;
+    testWriteFile("testdb.lsm-shm", 0, (void *)pHdr2, sizeof(ShmHeader), &rc);
+    doLiveRecovery("testdb.lsm", zCksum2, &rc);
+
+    /* If tree-header 1 is invalid, tree-header-2 is used */
+    memcpy(&pHdr2->hdr2, &pHdr2->hdr1, sizeof(pHdr1->hdr1));
+    pHdr2->hdr1.aCksum[0] = 5;
+    pHdr2->hdr1.aCksum[0] = 6;
+    pHdr2->bWriter = 1;
+    testWriteFile("testdb.lsm-shm", 0, (void *)pHdr2, sizeof(ShmHeader), &rc);
+    doLiveRecovery("testdb.lsm", zCksum2, &rc);
+
+    /* If tree-header 2 is invalid, tree-header-1 is used */
+    memcpy(&pHdr2->hdr1, &pHdr2->hdr2, sizeof(pHdr1->hdr1));
+    pHdr2->hdr2.aCksum[0] = 5;
+    pHdr2->hdr2.aCksum[0] = 6;
+    pHdr2->bWriter = 1;
+    testWriteFile("testdb.lsm-shm", 0, (void *)pHdr2, sizeof(ShmHeader), &rc);
+    doLiveRecovery("testdb.lsm", zCksum2, &rc);
+
+    testFree(pHdr1);
+    testFree(pHdr2);
+    testClose(&pDb);
+  }
+
+  *pRc = rc;
+}
+
+void do_writer_crash_test(const char *zPattern, int *pRc){
+  struct Test {
+    const char *zName;
+    void (*xFunc)(int *);
+  } aTest[] = {
+    { "writercrash1.lsm", doWriterCrash1 },
+    { "writercrash2.lsm", doWriterCrash2 },
+  };
+  int i;
+  for(i=0; i<ArraySize(aTest); i++){
+    struct Test *p = &aTest[i];
+    if( testCaseBegin(pRc, zPattern, p->zName) ){
+      p->xFunc(pRc);
+      testCaseFinish(*pRc);
+    }
+  }
+
+}
diff --git a/ext/lsm1/lsm-test/lsmtest9.c b/ext/lsm1/lsm-test/lsmtest9.c
new file mode 100644
index 0000000000000000000000000000000000000000..b01de0d4e5323137583b71c4caef9d5e4b281ead
--- /dev/null
+++ b/ext/lsm1/lsm-test/lsmtest9.c
@@ -0,0 +1,140 @@
+
+#include "lsmtest.h"
+
+#define DATA_SEQUENTIAL TEST_DATASOURCE_SEQUENCE
+#define DATA_RANDOM     TEST_DATASOURCE_RANDOM
+
+typedef struct Datatest4 Datatest4;
+
+/*
+** Test overview:
+**
+**   1. Insert (Datatest4.nRec) records into a database.
+**
+**   2. Repeat (Datatest4.nRepeat) times:
+**
+**      2a. Delete 2/3 of the records in the database.
+**
+**      2b. Run lsm_work(nMerge=1).
+**
+**      2c. Insert as many records as were deleted in 2a.
+**
+**      2d. Check database content is as expected.
+**
+**      2e. If (Datatest4.bReopen) is true, close and reopen the database.
+*/
+struct Datatest4 {
+  /* Datasource definition */
+  DatasourceDefn defn;
+
+  int nRec;
+  int nRepeat;
+  int bReopen;
+};
+
+static void doDataTest4(
+  const char *zSystem,            /* Database system to test */
+  Datatest4 *p,                   /* Structure containing test parameters */
+  int *pRc                        /* OUT: Error code */
+){
+  lsm_db *db = 0;
+  TestDb *pDb;
+  TestDb *pControl;
+  Datasource *pData;
+  int i;
+  int rc = 0;
+  int iDot = 0;
+  int bMultiThreaded = 0;         /* True for MT LSM database */
+
+  int nRecOn3 = (p->nRec / 3);
+  int iData = 0;
+
+  /* Start the test case, open a database and allocate the datasource. */
+  rc = testControlDb(&pControl);
+  pDb = testOpen(zSystem, 1, &rc);
+  pData = testDatasourceNew(&p->defn);
+  if( rc==0 ){
+    db = tdb_lsm(pDb);
+    bMultiThreaded = tdb_lsm_multithread(pDb);
+  }
+
+  testWriteDatasourceRange(pControl, pData, iData, nRecOn3*3, &rc);
+  testWriteDatasourceRange(pDb,      pData, iData, nRecOn3*3, &rc);
+
+  for(i=0; rc==0 && i<p->nRepeat; i++){
+
+    testDeleteDatasourceRange(pControl, pData, iData, nRecOn3*2, &rc);
+    testDeleteDatasourceRange(pDb,      pData, iData, nRecOn3*2, &rc);
+
+    if( db ){
+      int nDone;
+#if 0
+      fprintf(stderr, "lsm_work() start...\n"); fflush(stderr);
+#endif
+      do {
+        nDone = 0;
+        rc = lsm_work(db, 1, (1<<30), &nDone);
+      }while( rc==0 && nDone>0 );
+      if( bMultiThreaded && rc==LSM_BUSY ) rc = LSM_OK;
+#if 0 
+      fprintf(stderr, "lsm_work() done...\n"); fflush(stderr);
+#endif
+    }
+
+if( i+1<p->nRepeat ){
+    iData += (nRecOn3*2);
+    testWriteDatasourceRange(pControl, pData, iData+nRecOn3, nRecOn3*2, &rc);
+    testWriteDatasourceRange(pDb,      pData, iData+nRecOn3, nRecOn3*2, &rc);
+
+    testCompareDb(pData, nRecOn3*3, iData, pControl, pDb, &rc);
+
+    /* If Datatest4.bReopen is true, close and reopen the database */
+    if( p->bReopen ){
+      testReopen(&pDb, &rc);
+      if( rc==0 ) db = tdb_lsm(pDb);
+    }
+}
+
+    /* Update the progress dots... */
+    testCaseProgress(i, p->nRepeat, testCaseNDot(), &iDot);
+  }
+
+  testClose(&pDb);
+  testClose(&pControl);
+  testDatasourceFree(pData);
+  testCaseFinish(rc);
+  *pRc = rc;
+}
+
+static char *getName4(const char *zSystem, Datatest4 *pTest){
+  char *zRet;
+  char *zData;
+  zData = testDatasourceName(&pTest->defn);
+  zRet = testMallocPrintf("data4.%s.%s.%d.%d.%d", 
+      zSystem, zData, pTest->nRec, pTest->nRepeat, pTest->bReopen
+  );
+  testFree(zData);
+  return zRet;
+}
+
+void test_data_4(
+  const char *zSystem,            /* Database system name */
+  const char *zPattern,           /* Run test cases that match this pattern */
+  int *pRc                        /* IN/OUT: Error code */
+){
+  Datatest4 aTest[] = {
+      /* defn,                                 nRec, nRepeat, bReopen */
+    { {DATA_RANDOM,     20,25,     500,600}, 10000,      10,       0   },
+    { {DATA_RANDOM,     20,25,     500,600}, 10000,      10,       1   },
+  };
+
+  int i;
+
+  for(i=0; *pRc==LSM_OK && i<ArraySize(aTest); i++){
+    char *zName = getName4(zSystem, &aTest[i]);
+    if( testCaseBegin(pRc, zPattern, "%s", zName) ){
+      doDataTest4(zSystem, &aTest[i], pRc);
+    }
+    testFree(zName);
+  }
+}
diff --git a/ext/lsm1/lsm-test/lsmtest_bt.c b/ext/lsm1/lsm-test/lsmtest_bt.c
new file mode 100644
index 0000000000000000000000000000000000000000..8a4f54a8cd2dfd58c62c0b3bcb523ff8f8cc2e52
--- /dev/null
+++ b/ext/lsm1/lsm-test/lsmtest_bt.c
@@ -0,0 +1,71 @@
+
+#include "lsmtest.h"
+#include "bt.h"
+
+int do_bt(int nArg, char **azArg){
+  struct Option {
+    const char *zName;
+    int bPgno;
+    int eOpt;
+  } aOpt [] = { 
+    { "dbhdr",          0, BT_INFO_HDRDUMP },
+    { "filename",       0, BT_INFO_FILENAME },
+    { "block_freelist", 0, BT_INFO_BLOCK_FREELIST },
+    { "page_freelist",  0, BT_INFO_PAGE_FREELIST },
+    { "filename",       0, BT_INFO_FILENAME },
+    { "page",           1, BT_INFO_PAGEDUMP },
+    { "page_ascii",     1, BT_INFO_PAGEDUMP_ASCII },
+    { "leaks",          0, BT_INFO_PAGE_LEAKS },
+    { 0, 0 } 
+  };
+  int iOpt;
+  int rc;
+  bt_info buf;
+  char *zOpt;
+  char *zFile;
+
+  bt_db *db = 0;
+
+  if( nArg<2 ){
+    testPrintUsage("FILENAME OPTION ...");
+    return -1;
+  }
+  zFile = azArg[0];
+  zOpt = azArg[1];
+
+  rc = testArgSelect(aOpt, "option", zOpt, &iOpt);
+  if( rc!=0 ) return rc;
+  if( nArg!=2+aOpt[iOpt].bPgno ){
+    testPrintFUsage("FILENAME %s %s", zOpt, aOpt[iOpt].bPgno ? "PGNO" : "");
+    return -4;
+  }
+
+  rc = sqlite4BtNew(sqlite4_env_default(), 0, &db);
+  if( rc!=SQLITE4_OK ){
+    testPrintError("sqlite4BtNew() failed: %d", rc);
+    return -2;
+  }
+  rc = sqlite4BtOpen(db, zFile);
+  if( rc!=SQLITE4_OK ){
+    testPrintError("sqlite4BtOpen() failed: %d", rc);
+    return -3;
+  }
+
+  buf.eType = aOpt[iOpt].eOpt;
+  buf.pgno = 0;
+  sqlite4_buffer_init(&buf.output, 0);
+
+  if( aOpt[iOpt].bPgno ){
+    buf.pgno = (u32)atoi(azArg[2]);
+  }
+
+  rc = sqlite4BtControl(db, BT_CONTROL_INFO, &buf);
+  if( rc!=SQLITE4_OK ){
+    testPrintError("sqlite4BtControl() failed: %d\n", rc);
+    return -4;
+  }
+
+  printf("%s\n", (char*)buf.output.p);
+  sqlite4_buffer_clear(&buf.output);
+  return 0;
+}
diff --git a/ext/lsm1/lsm-test/lsmtest_datasource.c b/ext/lsm1/lsm-test/lsmtest_datasource.c
new file mode 100644
index 0000000000000000000000000000000000000000..0b0fd94e8b3c3fc60debf8a2948819cf80d97b47
--- /dev/null
+++ b/ext/lsm1/lsm-test/lsmtest_datasource.c
@@ -0,0 +1,96 @@
+
+
+#include "lsmtest.h"
+
+struct Datasource {
+  int eType;
+
+  int nMinKey;
+  int nMaxKey;
+  int nMinVal;
+  int nMaxVal;
+
+  char *aKey;
+  char *aVal;
+};
+
+void testDatasourceEntry(
+  Datasource *p, 
+  int iData, 
+  void **ppKey, int *pnKey,
+  void **ppVal, int *pnVal
+){
+  assert( (ppKey==0)==(pnKey==0) );
+  assert( (ppVal==0)==(pnVal==0) );
+
+  if( ppKey ){
+    int nKey = 0;
+    switch( p->eType ){
+      case TEST_DATASOURCE_RANDOM: {
+        int nRange = (1 + p->nMaxKey - p->nMinKey);
+        nKey = (int)( testPrngValue((u32)iData) % nRange ) + p->nMinKey; 
+        testPrngString((u32)iData, p->aKey, nKey);
+        break;
+      }
+      case TEST_DATASOURCE_SEQUENCE:
+        nKey = sprintf(p->aKey, "%012d", iData);
+        break;
+    }
+    *ppKey = p->aKey;
+    *pnKey = nKey;
+  }
+  if( ppVal ){
+    u32 nVal = testPrngValue((u32)iData)%(1+p->nMaxVal-p->nMinVal)+p->nMinVal;
+    testPrngString((u32)~iData, p->aVal, (int)nVal);
+    *ppVal = p->aVal;
+    *pnVal = (int)nVal;
+  }
+}
+
+void testDatasourceFree(Datasource *p){
+  testFree(p);
+}
+
+/*
+** Return a pointer to a nul-terminated string that corresponds to the
+** contents of the datasource-definition passed as the first argument.
+** The caller should eventually free the returned pointer using testFree().
+*/
+char *testDatasourceName(const DatasourceDefn *p){
+  char *zRet;
+  zRet = testMallocPrintf("%s.(%d-%d).(%d-%d)",
+      (p->eType==TEST_DATASOURCE_SEQUENCE ? "seq" : "rnd"),
+      p->nMinKey, p->nMaxKey,
+      p->nMinVal, p->nMaxVal
+  );
+  return zRet;
+}
+
+Datasource *testDatasourceNew(const DatasourceDefn *pDefn){
+  Datasource *p;
+  int nMinKey; 
+  int nMaxKey;
+  int nMinVal;
+  int nMaxVal; 
+
+  if( pDefn->eType==TEST_DATASOURCE_SEQUENCE ){
+    nMinKey = 128;
+    nMaxKey = 128;
+  }else{
+    nMinKey = MAX(0, pDefn->nMinKey);
+    nMaxKey = MAX(nMinKey, pDefn->nMaxKey);
+  }
+  nMinVal = MAX(0, pDefn->nMinVal);
+  nMaxVal = MAX(nMinVal, pDefn->nMaxVal);
+
+  p = (Datasource *)testMalloc(sizeof(Datasource) + nMaxKey + nMaxVal + 1);
+  p->eType = pDefn->eType;
+  p->nMinKey = nMinKey;
+  p->nMinVal = nMinVal;
+  p->nMaxKey = nMaxKey;
+  p->nMaxVal = nMaxVal;
+  
+  p->aKey = (char *)&p[1];
+  p->aVal = &p->aKey[nMaxKey];
+  return p;
+};
diff --git a/ext/lsm1/lsm-test/lsmtest_func.c b/ext/lsm1/lsm-test/lsmtest_func.c
new file mode 100644
index 0000000000000000000000000000000000000000..eb8346aa8361ee0b1d5e75faa9e228f31914844c
--- /dev/null
+++ b/ext/lsm1/lsm-test/lsmtest_func.c
@@ -0,0 +1,177 @@
+
+#include "lsmtest.h"
+
+
+int do_work(int nArg, char **azArg){
+  struct Option {
+    const char *zName;
+  } aOpt [] = {
+    { "-nmerge" },
+    { "-nkb" },
+    { 0 }
+  };
+
+  lsm_db *pDb;
+  int rc;
+  int i;
+  const char *zDb;
+  int nMerge = 1;
+  int nKB = (1<<30);
+
+  if( nArg==0 ) goto usage;
+  zDb = azArg[nArg-1];
+  for(i=0; i<(nArg-1); i++){
+    int iSel;
+    rc = testArgSelect(aOpt, "option", azArg[i], &iSel);
+    if( rc ) return rc;
+    switch( iSel ){
+      case 0:
+        i++;
+        if( i==(nArg-1) ) goto usage;
+        nMerge = atoi(azArg[i]);
+        break;
+      case 1:
+        i++;
+        if( i==(nArg-1) ) goto usage;
+        nKB = atoi(azArg[i]);
+        break;
+    }
+  }
+
+  rc = lsm_new(0, &pDb);
+  if( rc!=LSM_OK ){
+    testPrintError("lsm_open(): rc=%d\n", rc);
+  }else{
+    rc = lsm_open(pDb, zDb);
+    if( rc!=LSM_OK ){
+      testPrintError("lsm_open(): rc=%d\n", rc);
+    }else{
+      int n = -1;
+      lsm_config(pDb, LSM_CONFIG_BLOCK_SIZE, &n);
+      n = n*2;
+      lsm_config(pDb, LSM_CONFIG_AUTOCHECKPOINT, &n);
+
+      rc = lsm_work(pDb, nMerge, nKB, 0);
+      if( rc!=LSM_OK ){
+        testPrintError("lsm_work(): rc=%d\n", rc);
+      }
+    }
+  }
+  if( rc==LSM_OK ){
+    rc = lsm_checkpoint(pDb, 0);
+  }
+
+  lsm_close(pDb);
+  return rc;
+
+ usage:
+  testPrintUsage("?-optimize? ?-n N? DATABASE");
+  return -1;
+}
+
+
+/*
+**   lsmtest show ?-config LSM-CONFIG? DATABASE ?COMMAND ?PGNO??
+*/
+int do_show(int nArg, char **azArg){
+  lsm_db *pDb;
+  int rc;
+  const char *zDb;
+
+  int eOpt = LSM_INFO_DB_STRUCTURE;
+  unsigned int iPg = 0;
+  int bConfig = 0;
+  const char *zConfig = "";
+
+  struct Option {
+    const char *zName;
+    int bConfig;
+    int eOpt;
+  } aOpt [] = { 
+    { "array",       0, LSM_INFO_ARRAY_STRUCTURE },
+    { "array-pages", 0, LSM_INFO_ARRAY_PAGES },
+    { "blocksize",   1, LSM_CONFIG_BLOCK_SIZE },
+    { "pagesize",    1, LSM_CONFIG_PAGE_SIZE },
+    { "freelist",    0, LSM_INFO_FREELIST },
+    { "page-ascii",  0, LSM_INFO_PAGE_ASCII_DUMP },
+    { "page-hex",    0, LSM_INFO_PAGE_HEX_DUMP },
+    { 0, 0 } 
+  };
+
+  char *z = 0; 
+  int iDb = 0;                    /* Index of DATABASE in azArg[] */
+
+  /* Check if there is a "-config" option: */
+  if( nArg>2 && strlen(azArg[0])>1 
+   && memcmp(azArg[0], "-config", strlen(azArg[0]))==0
+  ){
+    zConfig = azArg[1];
+    iDb = 2;
+  }
+  if( nArg<(iDb+1) ) goto usage;
+
+  if( nArg>(iDb+1) ){
+    rc = testArgSelect(aOpt, "option", azArg[iDb+1], &eOpt);
+    if( rc!=0 ) return rc;
+    bConfig = aOpt[eOpt].bConfig;
+    eOpt = aOpt[eOpt].eOpt;
+    if( (bConfig==0 && eOpt==LSM_INFO_FREELIST)
+     || (bConfig==1 && eOpt==LSM_CONFIG_BLOCK_SIZE)
+     || (bConfig==1 && eOpt==LSM_CONFIG_PAGE_SIZE)
+    ){
+      if( nArg!=(iDb+2) ) goto usage;
+    }else{
+      if( nArg!=(iDb+3) ) goto usage;
+      iPg = atoi(azArg[iDb+2]);
+    }
+  }
+  zDb = azArg[iDb];
+
+  rc = lsm_new(0, &pDb);
+  tdb_lsm_configure(pDb, zConfig);
+  if( rc!=LSM_OK ){
+    testPrintError("lsm_new(): rc=%d\n", rc);
+  }else{
+    rc = lsm_open(pDb, zDb);
+    if( rc!=LSM_OK ){
+      testPrintError("lsm_open(): rc=%d\n", rc);
+    }
+  }
+
+  if( rc==LSM_OK ){
+    if( bConfig==0 ){
+      switch( eOpt ){
+        case LSM_INFO_DB_STRUCTURE:
+        case LSM_INFO_FREELIST:
+          rc = lsm_info(pDb, eOpt, &z);
+          break;
+        case LSM_INFO_ARRAY_STRUCTURE:
+        case LSM_INFO_ARRAY_PAGES:
+        case LSM_INFO_PAGE_ASCII_DUMP:
+        case LSM_INFO_PAGE_HEX_DUMP:
+          rc = lsm_info(pDb, eOpt, iPg, &z);
+          break;
+        default:
+          assert( !"no chance" );
+      }
+
+      if( rc==LSM_OK ){
+        printf("%s\n", z ? z : "");
+        fflush(stdout);
+      }
+      lsm_free(lsm_get_env(pDb), z);
+    }else{
+      int iRes = -1;
+      lsm_config(pDb, eOpt, &iRes);
+      printf("%d\n", iRes);
+      fflush(stdout);
+    }
+  }
+
+  lsm_close(pDb);
+  return rc;
+
+ usage:
+  testPrintUsage("DATABASE ?array|page-ascii|page-hex PGNO?");
+  return -1;
+}
diff --git a/ext/lsm1/lsm-test/lsmtest_io.c b/ext/lsm1/lsm-test/lsmtest_io.c
new file mode 100644
index 0000000000000000000000000000000000000000..7aa5d10948315b36f4bad80d3b1938c4334f1431
--- /dev/null
+++ b/ext/lsm1/lsm-test/lsmtest_io.c
@@ -0,0 +1,248 @@
+
+/*
+** SUMMARY
+**
+**   This file implements the 'io' subcommand of the test program. It is used
+**   for testing the performance of various combinations of write() and fsync()
+**   system calls. All operations occur on a single file, which may or may not
+**   exist when a test is started.
+**
+**   A test consists of a series of commands. Each command is either a write
+**   or an fsync. A write is specified as "<amount>@<offset>", where <amount>
+**   is the amount of data written, and <offset> is the offset of the file
+**   to write to. An <amount> or an <offset> is specified as an integer number
+**   of bytes. Or, if postfixed with a "K", "M" or "G", an integer number of
+**   KB, MB or GB, respectively. An fsync is simply "S". All commands are
+**   case-insensitive.
+**
+**   Example test program:
+**
+**        2M@6M 1492K@4M S 4096@4K S
+**
+**   This program writes 2 MB of data starting at the offset 6MB offset of
+**   the file, followed by 1492 KB of data written at the 4MB offset of the
+**   file, followed by a call to fsync(), a write of 4KB of data at byte
+**   offset 4096, and finally another call to fsync().
+**
+**   Commands may either be specified on the command line (one command per
+**   command line argument) or read from stdin. Commands read from stdin
+**   must be separated by white-space.
+**
+** COMMAND LINE INVOCATION
+**
+**   The sub-command implemented in this file must be invoked with at least
+**   two arguments - the path to the file to write to and the page-size to
+**   use for writing. If there are more than two arguments, then each
+**   subsequent argument is assumed to be a test command. If there are exactly
+**   two arguments, the test commands are read from stdin.
+**
+**   A write command does not result in a single call to system call write().
+**   Instead, the specified region is written sequentially using one or
+**   more calls to write(), each of which writes not more than one page of
+**   data. For example, if the page-size is 4KB, the command "2M@6M" results
+**   in 512 calls to write(), each of which writes 4KB of data.
+**
+** EXAMPLES
+**
+**   Two equivalent examples:
+**
+**     $ lsmtest io testfile.db 4KB 2M@6M 1492K@4M S 4096@4K S
+**     3544K written in 129 ms
+**     $ echo "2M@6M 1492K@4M S 4096@4K S" | lsmtest io testfile.db 4096 
+**     3544K written in 127 ms
+**
+*/
+
+#include "lsmtest.h"
+
+typedef struct IoContext IoContext;
+
+struct IoContext {
+  int fd;
+  int nWrite;
+};
+
+/*
+** As isspace(3)
+*/
+static int safe_isspace(char c){
+  if( c&0x80) return 0;
+  return isspace(c);
+}
+
+/*
+** As isdigit(3)
+*/
+static int safe_isdigit(char c){
+  if( c&0x80) return 0;
+  return isdigit(c);
+}
+
+static i64 getNextSize(char *zIn, char **pzOut, int *pRc){
+  i64 iRet = 0;
+  if( *pRc==0 ){
+    char *z = zIn;
+
+    if( !safe_isdigit(*z) ){
+      *pRc = 1;
+      return 0;
+    }
+
+    /* Process digits */
+    while( safe_isdigit(*z) ){
+      iRet = iRet*10 + (*z - '0');
+      z++;
+    }
+
+    /* Process suffix */
+    switch( *z ){
+      case 'k': case 'K':
+        iRet = iRet * 1024;
+        z++;
+        break;
+
+      case 'm': case 'M':
+        iRet = iRet * 1024 * 1024;
+        z++;
+        break;
+
+      case 'g': case 'G':
+        iRet = iRet * 1024 * 1024 * 1024;
+        z++;
+        break;
+    }
+
+    if( pzOut ) *pzOut = z;
+  }
+  return iRet;
+}
+
+static int doOneCmd(
+  IoContext *pCtx,
+  u8 *aData,
+  int pgsz,
+  char *zCmd,
+  char **pzOut
+){
+  char c;
+  char *z = zCmd;
+
+  while( safe_isspace(*z) ) z++;
+  c = *z;
+
+  if( c==0 ){
+    if( pzOut ) *pzOut = z;
+    return 0;
+  }
+
+  if( c=='s' || c=='S' ){
+    if( pzOut ) *pzOut = &z[1];
+    return fdatasync(pCtx->fd);
+  }
+
+  if( safe_isdigit(c) ){
+    i64 iOff = 0;
+    int nByte = 0;
+    int rc = 0;
+    int nPg;
+    int iPg;
+
+    nByte = (int)getNextSize(z, &z, &rc);
+    if( rc || *z!='@' ) goto bad_command;
+    z++;
+    iOff = getNextSize(z, &z, &rc);
+    if( rc || (safe_isspace(*z)==0 && *z!='\0') ) goto bad_command;
+    if( pzOut ) *pzOut = z;
+
+    nPg = (nByte+pgsz-1) / pgsz;
+    lseek(pCtx->fd, (off_t)iOff, SEEK_SET);
+    for(iPg=0; iPg<nPg; iPg++){
+      write(pCtx->fd, aData, pgsz);
+    }
+    pCtx->nWrite += nByte/1024;
+
+    return 0;
+  }
+
+ bad_command:
+  testPrintError("unrecognized command: %s", zCmd);
+  return 1;
+}
+
+static int readStdin(char **pzOut){
+  int nAlloc = 128;
+  char *zOut = 0;
+  int nOut = 0;
+
+  while( !feof(stdin) ){
+    int nRead;
+
+    nAlloc = nAlloc*2;
+    zOut = realloc(zOut, nAlloc);
+    nRead = fread(&zOut[nOut], 1, nAlloc-nOut-1, stdin);
+
+    if( nRead==0 ) break;
+    nOut += nRead;
+    zOut[nOut] = '\0';
+  }
+
+  *pzOut = zOut;
+  return 0;
+}
+
+int do_io(int nArg, char **azArg){
+  IoContext ctx;
+  int pgsz;
+  char *zFile;
+  char *zPgsz;
+  int i;
+  int rc = 0;
+
+  char *zStdin = 0;
+  char *z;
+
+  u8 *aData;
+
+  memset(&ctx, 0, sizeof(IoContext));
+  if( nArg<2 ){
+    testPrintUsage("FILE PGSZ ?CMD-1 ...?");
+    return -1;
+  }
+  zFile = azArg[0];
+  zPgsz = azArg[1];
+
+  pgsz = (int)getNextSize(zPgsz, 0, &rc);
+  if( pgsz<=0 ){
+    testPrintError("Ridiculous page size: %d", pgsz);
+    return -1;
+  }
+  aData = malloc(pgsz);
+  memset(aData, 0x77, pgsz);
+
+  ctx.fd = open(zFile, O_RDWR|O_CREAT|_O_BINARY, 0644);
+  if( ctx.fd<0 ){
+    perror("open: ");
+    return -1;
+  }
+
+  if( nArg==2 ){
+    readStdin(&zStdin);
+    testTimeInit();
+    z = zStdin;
+    while( *z && rc==0 ){
+      rc = doOneCmd(&ctx, aData, pgsz, z, &z);
+    }
+  }else{
+    testTimeInit();
+    for(i=2; i<nArg; i++){
+      rc = doOneCmd(&ctx, aData, pgsz, azArg[i], 0);
+    }
+  }
+
+  printf("%dK written in %d ms\n", ctx.nWrite, testTimeGet());
+
+  free(zStdin);
+  close(ctx.fd);
+
+  return 0;
+}
diff --git a/ext/lsm1/lsm-test/lsmtest_main.c b/ext/lsm1/lsm-test/lsmtest_main.c
new file mode 100644
index 0000000000000000000000000000000000000000..f4a3ac0d5635f0f76f58db79b306920a325c2c72
--- /dev/null
+++ b/ext/lsm1/lsm-test/lsmtest_main.c
@@ -0,0 +1,1548 @@
+
+#include "lsmtest.h"
+#include <sqlite3.h>
+
+void test_failed(){ 
+  assert( 0 );
+  return; 
+}
+
+#define testSetError(rc) testSetErrorFunc(rc, pRc, __FILE__, __LINE__)
+static void testSetErrorFunc(int rc, int *pRc, const char *zFile, int iLine){
+  if( rc ){
+    *pRc = rc;
+    fprintf(stderr, "FAILED (%s:%d) rc=%d ", zFile, iLine, rc);
+    test_failed();
+  }
+}
+
+static int lsm_memcmp(u8 *a, u8 *b, int c){
+  int i;
+  for(i=0; i<c; i++){
+    if( a[i]!=b[i] ) return a[i] - b[i];
+  }
+  return 0;
+}
+
+/*
+** A test utility function.
+*/
+void testFetch(
+  TestDb *pDb,                    /* Database handle */
+  void *pKey, int nKey,           /* Key to query database for */
+  void *pVal, int nVal,           /* Expected value */
+  int *pRc                        /* IN/OUT: Error code */
+){
+  if( *pRc==0 ){
+    void *pDbVal;
+    int nDbVal;
+    int rc;
+
+    static int nCall = 0; nCall++;
+
+    rc = tdb_fetch(pDb, pKey, nKey, &pDbVal, &nDbVal);
+    testSetError(rc);
+    if( rc==0 && (nVal!=nDbVal || (nVal>0 && lsm_memcmp(pVal, pDbVal, nVal))) ){
+      testSetError(1);
+    }
+  }
+}
+
+void testWrite(
+  TestDb *pDb,                    /* Database handle */
+  void *pKey, int nKey,           /* Key to query database for */
+  void *pVal, int nVal,           /* Value to write */
+  int *pRc                        /* IN/OUT: Error code */
+){
+  if( *pRc==0 ){
+    int rc;
+static int nCall = 0;
+nCall++;
+    rc = tdb_write(pDb, pKey, nKey, pVal, nVal);
+    testSetError(rc);
+  }
+}
+void testDelete(
+  TestDb *pDb,                    /* Database handle */
+  void *pKey, int nKey,           /* Key to query database for */
+  int *pRc                        /* IN/OUT: Error code */
+){
+  if( *pRc==0 ){
+    int rc;
+    *pRc = rc = tdb_delete(pDb, pKey, nKey);
+    testSetError(rc);
+  }
+}
+void testDeleteRange(
+  TestDb *pDb,                    /* Database handle */
+  void *pKey1, int nKey1,
+  void *pKey2, int nKey2,
+  int *pRc                        /* IN/OUT: Error code */
+){
+  if( *pRc==0 ){
+    int rc;
+    *pRc = rc = tdb_delete_range(pDb, pKey1, nKey1, pKey2, nKey2);
+    testSetError(rc);
+  }
+}
+
+void testBegin(TestDb *pDb, int iTrans, int *pRc){
+  if( *pRc==0 ){
+    int rc;
+    rc = tdb_begin(pDb, iTrans);
+    testSetError(rc);
+  }
+}
+void testCommit(TestDb *pDb, int iTrans, int *pRc){
+  if( *pRc==0 ){
+    int rc;
+    rc = tdb_commit(pDb, iTrans);
+    testSetError(rc);
+  }
+}
+#if 0 /* unused */
+static void testRollback(TestDb *pDb, int iTrans, int *pRc){
+  if( *pRc==0 ){
+    int rc;
+    rc = tdb_rollback(pDb, iTrans);
+    testSetError(rc);
+  }
+}
+#endif
+
+void testWriteStr(
+  TestDb *pDb,                    /* Database handle */
+  const char *zKey,               /* Key to query database for */
+  const char *zVal,               /* Value to write */
+  int *pRc                        /* IN/OUT: Error code */
+){
+  int nVal = (zVal ? strlen(zVal) : 0);
+  testWrite(pDb, (void *)zKey, strlen(zKey), (void *)zVal, nVal, pRc);
+}
+
+#if 0 /* unused */
+static void testDeleteStr(TestDb *pDb, const char *zKey, int *pRc){
+  testDelete(pDb, (void *)zKey, strlen(zKey), pRc);
+}
+#endif
+void testFetchStr(
+  TestDb *pDb,                    /* Database handle */
+  const char *zKey,               /* Key to query database for */
+  const char *zVal,               /* Value to write */
+  int *pRc                        /* IN/OUT: Error code */
+){
+  int nVal = (zVal ? strlen(zVal) : 0);
+  testFetch(pDb, (void *)zKey, strlen(zKey), (void *)zVal, nVal, pRc);
+}
+
+void testFetchCompare(
+  TestDb *pControl, 
+  TestDb *pDb, 
+  void *pKey, int nKey, 
+  int *pRc
+){
+  int rc;
+  void *pDbVal1;
+  void *pDbVal2;
+  int nDbVal1;
+  int nDbVal2;
+
+  static int nCall = 0;
+  nCall++;
+
+  rc = tdb_fetch(pControl, pKey, nKey, &pDbVal1, &nDbVal1);
+  testSetError(rc);
+
+  rc = tdb_fetch(pDb, pKey, nKey, &pDbVal2, &nDbVal2);
+  testSetError(rc);
+
+  if( *pRc==0 
+   && (nDbVal1!=nDbVal2 || (nDbVal1>0 && memcmp(pDbVal1, pDbVal2, nDbVal1)))
+  ){
+    testSetError(1);
+  }
+}
+
+typedef struct ScanResult ScanResult;
+struct ScanResult {
+  TestDb *pDb;
+
+  int nRow;
+  u32 cksum1;
+  u32 cksum2;
+  void *pKey1; int nKey1;
+  void *pKey2; int nKey2;
+
+  int bReverse;
+  int nPrevKey;
+  u8 aPrevKey[256];
+};
+
+static int keyCompare(void *pKey1, int nKey1, void *pKey2, int nKey2){
+  int res;
+  res = memcmp(pKey1, pKey2, MIN(nKey1, nKey2));
+  if( res==0 ){
+    res = nKey1 - nKey2;
+  }
+  return res;
+}
+
+int test_scan_debug = 0;
+
+static void scanCompareCb(
+  void *pCtx, 
+  void *pKey, int nKey,
+  void *pVal, int nVal
+){
+  ScanResult *p = (ScanResult *)pCtx;
+  u8 *aKey = (u8 *)pKey;
+  u8 *aVal = (u8 *)pVal;
+  int i;
+
+  if( test_scan_debug ){
+    printf("%d: %.*s\n", p->nRow, nKey, (char *)pKey);
+    fflush(stdout);
+  }
+#if 0
+  if( test_scan_debug ) printf("%.20s\n", (char *)pVal);
+#endif
+
+#if 0
+  /* Check tdb_fetch() matches */
+  int rc = 0;
+  testFetch(p->pDb, pKey, nKey, pVal, nVal, &rc);
+  assert( rc==0 );
+#endif
+
+  /* Update the checksum data */
+  p->nRow++;
+  for(i=0; i<nKey; i++){
+    p->cksum1 += ((int)aKey[i] << (i&0x0F));
+    p->cksum2 += p->cksum1;
+  }
+  for(i=0; i<nVal; i++){
+    p->cksum1 += ((int)aVal[i] << (i&0x0F));
+    p->cksum2 += p->cksum1;
+  }
+
+  /* Check that the delivered row is not out of order. */
+  if( nKey<(int)sizeof(p->aPrevKey) ){
+    if( p->nPrevKey ){
+      int res = keyCompare(p->aPrevKey, p->nPrevKey, pKey, nKey);
+      if( (res<0 && p->bReverse) || (res>0 && p->bReverse==0) ){
+        testPrintError("Returned key out of order at %s:%d\n", 
+            __FILE__, __LINE__
+        );
+      }
+    }
+
+    p->nPrevKey = nKey;
+    memcpy(p->aPrevKey, pKey, MIN(p->nPrevKey, nKey));
+  }
+
+  /* Check that the delivered row is within range. */
+  if( p->pKey1 && (
+      (memcmp(p->pKey1, pKey, MIN(p->nKey1, nKey))>0)
+   || (memcmp(p->pKey1, pKey, MIN(p->nKey1, nKey))==0 && p->nKey1>nKey)
+  )){
+    testPrintError("Returned key too small at %s:%d\n", __FILE__, __LINE__);
+  }
+  if( p->pKey2 && (
+      (memcmp(p->pKey2, pKey, MIN(p->nKey2, nKey))<0)
+   || (memcmp(p->pKey2, pKey, MIN(p->nKey2, nKey))==0 && p->nKey2<nKey)
+  )){
+    testPrintError("Returned key too large at %s:%d\n", __FILE__, __LINE__);
+  }
+
+}
+
+/*
+** Scan the contents of the two databases. Check that they match.
+*/
+void testScanCompare(
+  TestDb *pDb1,                   /* Control (trusted) database */
+  TestDb *pDb2,                   /* Database being tested */
+  int bReverse,
+  void *pKey1, int nKey1, 
+  void *pKey2, int nKey2, 
+  int *pRc
+){
+  static int nCall = 0; nCall++;
+  if( *pRc==0 ){
+    ScanResult res1;
+    ScanResult res2;
+    void *pRes1 = (void *)&res1;
+    void *pRes2 = (void *)&res2;
+
+    memset(&res1, 0, sizeof(ScanResult));
+    memset(&res2, 0, sizeof(ScanResult));
+
+    res1.pDb = pDb1;
+    res1.nKey1 = nKey1; res1.pKey1 = pKey1;
+    res1.nKey2 = nKey2; res1.pKey2 = pKey2;
+    res1.bReverse = bReverse;
+    res2.pDb = pDb2;
+    res2.nKey1 = nKey1; res2.pKey1 = pKey1;
+    res2.nKey2 = nKey2; res2.pKey2 = pKey2;
+    res2.bReverse = bReverse;
+
+    tdb_scan(pDb1, pRes1, bReverse, pKey1, nKey1, pKey2, nKey2, scanCompareCb);
+if( test_scan_debug ) printf("\n\n\n");
+    tdb_scan(pDb2, pRes2, bReverse, pKey1, nKey1, pKey2, nKey2, scanCompareCb);
+if( test_scan_debug ) printf("\n\n\n");
+
+    if( res1.nRow!=res2.nRow 
+     || res1.cksum1!=res2.cksum1 
+     || res1.cksum2!=res2.cksum2
+    ){
+      printf("expected: %d %X %X\n", res1.nRow, res1.cksum1, res1.cksum2);
+      printf("got:      %d %X %X\n", res2.nRow, res2.cksum1, res2.cksum2);
+      testSetError(1);
+      *pRc = 1;
+    }
+  }
+}
+
+void testClose(TestDb **ppDb){
+  tdb_close(*ppDb);
+  *ppDb = 0;
+}
+
+TestDb *testOpen(const char *zSystem, int bClear, int *pRc){
+  TestDb *pDb = 0;
+  if( *pRc==0 ){
+    int rc;
+    rc = tdb_open(zSystem, 0, bClear, &pDb);
+    if( rc!=0 ){
+      testSetError(rc);
+      *pRc = rc;
+    }
+  }
+  return pDb;
+}
+
+void testReopen(TestDb **ppDb, int *pRc){
+  if( *pRc==0 ){
+    const char *zLib;
+    zLib = tdb_library_name(*ppDb);
+    testClose(ppDb);
+    *pRc = tdb_open(zLib, 0, 0, ppDb);
+  }
+}
+
+
+#if 0 /* unused */
+static void testSystemSelect(const char *zSys, int *piSel, int *pRc){
+  if( *pRc==0 ){
+    struct SysName { const char *zName; } *aName;
+    int nSys;
+    int i;
+
+    for(nSys=0; tdb_system_name(nSys); nSys++);
+    aName = malloc(sizeof(struct SysName) * (nSys+1));
+    for(i=0; i<=nSys; i++){
+      aName[i].zName = tdb_system_name(i);
+    }
+
+    *pRc = testArgSelect(aName, "db", zSys, piSel);
+    free(aName);
+  }
+}
+#endif
+
+char *testMallocVPrintf(const char *zFormat, va_list ap){
+  int nByte;
+  va_list copy;
+  char *zRet;
+
+  __va_copy(copy, ap);
+  nByte = vsnprintf(0, 0, zFormat, copy);
+  va_end(copy);
+
+  assert( nByte>=0 );
+  zRet = (char *)testMalloc(nByte+1);
+  vsnprintf(zRet, nByte+1, zFormat, ap);
+  return zRet;
+}
+
+char *testMallocPrintf(const char *zFormat, ...){
+  va_list ap;
+  char *zRet;
+
+  va_start(ap, zFormat);
+  zRet = testMallocVPrintf(zFormat, ap);
+  va_end(ap);
+
+  return zRet;
+}
+
+
+/*
+** A wrapper around malloc(3).
+**
+** This function should be used for all allocations made by test procedures.
+** It has the following properties:
+**
+**   * Test code may assume that allocations may not fail.
+**   * Returned memory is always zeroed.
+**
+** Allocations made using testMalloc() should be freed using testFree().
+*/
+void *testMalloc(int n){
+  u8 *p = (u8*)malloc(n + 8);
+  memset(p, 0, n+8);
+  *(int*)p = n;
+  return (void*)&p[8];
+}
+
+void *testMallocCopy(void *pCopy, int nByte){
+  void *pRet = testMalloc(nByte);
+  memcpy(pRet, pCopy, nByte);
+  return pRet;
+}
+
+void *testRealloc(void *ptr, int n){
+  if( ptr ){
+    u8 *p = (u8*)ptr - 8;
+    int nOrig =  *(int*)p;
+    p = (u8*)realloc(p, n+8);
+    if( nOrig<n ){
+      memset(&p[8+nOrig], 0, n-nOrig);
+    }
+    *(int*)p = n;
+    return (void*)&p[8];
+  }
+  return testMalloc(n);
+}
+
+/*
+** Free an allocation made by an earlier call to testMalloc().
+*/
+void testFree(void *ptr){
+  if( ptr ){
+    u8 *p = (u8*)ptr - 8;
+    memset(p, 0x55, *(int*)p + 8);
+    free(p);
+  }
+}
+
+/*
+** String zPattern contains a glob pattern. Return true if zStr matches 
+** the pattern, or false if it does not.
+*/
+int testGlobMatch(const char *zPattern, const char *zStr){
+  int i = 0;
+  int j = 0;
+
+  while( zPattern[i] ){
+    char p = zPattern[i];
+
+    if( p=='*' || p=='%' ){
+      do {
+        if( testGlobMatch(&zPattern[i+1], &zStr[j]) ) return 1;
+      }while( zStr[j++] );
+      return 0;
+    }
+
+    if( zStr[j]==0 || (p!='?' && p!=zStr[j]) ){
+      /* Match failed. */
+      return 0;
+    }
+
+    j++;
+    i++;
+  }
+
+  return (zPattern[i]==0 && zStr[j]==0);
+}
+
+/* 
+** End of test utilities 
+**************************************************************************/
+
+int do_test(int nArg, char **azArg){
+  int j;
+  int rc;
+  int nFail = 0;
+  const char *zPattern = 0;
+
+  if( nArg>1 ){
+    testPrintError("Usage: test ?PATTERN?\n");
+    return 1;
+  }
+  if( nArg==1 ){
+    zPattern = azArg[0];
+  }
+
+  for(j=0; tdb_system_name(j); j++){
+    rc = 0;
+
+    test_data_1(tdb_system_name(j), zPattern, &rc);
+    test_data_2(tdb_system_name(j), zPattern, &rc);
+    test_data_3(tdb_system_name(j), zPattern, &rc);
+    test_data_4(tdb_system_name(j), zPattern, &rc);
+    test_rollback(tdb_system_name(j), zPattern, &rc);
+    test_mc(tdb_system_name(j), zPattern, &rc);
+    test_mt(tdb_system_name(j), zPattern, &rc);
+
+    if( rc ) nFail++;
+  }
+
+  rc = 0;
+  test_oom(zPattern, &rc);
+  if( rc ) nFail++;
+
+  rc = 0;
+  test_api(zPattern, &rc);
+  if( rc ) nFail++;
+
+  rc = 0;
+  do_crash_test(zPattern, &rc);
+  if( rc ) nFail++;
+
+  rc = 0;
+  do_writer_crash_test(zPattern, &rc);
+  if( rc ) nFail++;
+
+  return (nFail!=0);
+}
+
+static lsm_db *configure_lsm_db(TestDb *pDb){
+  lsm_db *pLsm;
+  pLsm = tdb_lsm(pDb);
+  if( pLsm ){
+    tdb_lsm_config_str(pDb, "mmap=1 autowork=1 automerge=4 worker_automerge=4");
+  }
+  return pLsm;
+}
+
+typedef struct WriteHookEvent WriteHookEvent;
+struct WriteHookEvent {
+  i64 iOff;
+  int nData;
+  int nUs;
+};
+WriteHookEvent prev = {0, 0, 0};
+
+static void flushPrev(FILE *pOut){
+  if( prev.nData ){
+    fprintf(pOut, "w %s %lld %d %d\n", "d", prev.iOff, prev.nData, prev.nUs);
+    prev.nData = 0;
+  }
+}
+
+#if 0 /* unused */
+static void do_speed_write_hook2(
+  void *pCtx,
+  int bLog,
+  i64 iOff,
+  int nData,
+  int nUs
+){
+  FILE *pOut = (FILE *)pCtx;
+  if( bLog ) return;
+
+  if( prev.nData && nData && iOff==prev.iOff+prev.nData ){
+    prev.nData += nData;
+    prev.nUs += nUs;
+  }else{
+    flushPrev(pOut);
+    if( nData==0 ){
+      fprintf(pOut, "s %s 0 0 %d\n", (bLog ? "l" : "d"), nUs);
+    }else{
+      prev.iOff = iOff;
+      prev.nData = nData;
+      prev.nUs = nUs;
+    }
+  }
+}
+#endif
+
+#define ST_REPEAT  0
+#define ST_WRITE   1
+#define ST_PAUSE   2
+#define ST_FETCH   3
+#define ST_SCAN    4
+#define ST_NSCAN   5
+#define ST_KEYSIZE 6
+#define ST_VALSIZE 7
+#define ST_TRANS   8
+
+
+static void print_speed_test_help(){
+  printf(
+"\n"
+"Repeat the following $repeat times:\n"
+"  1. Insert $write key-value pairs. One transaction for each write op.\n"
+"  2. Pause for $pause ms.\n"
+"  3. Perform $fetch queries on the database.\n"
+"\n"
+"  Keys are $keysize bytes in size. Values are $valsize bytes in size\n"
+"  Both keys and values are pseudo-randomly generated\n"
+"\n"
+"Options are:\n"
+"  -repeat  $repeat                 (default value 10)\n"
+"  -write   $write                  (default value 10000)\n"
+"  -pause   $pause                  (default value 0)\n"
+"  -fetch   $fetch                  (default value 0)\n"
+"  -keysize $keysize                (default value 12)\n"
+"  -valsize $valsize                (default value 100)\n"
+"  -system  $system                 (default value \"lsm\")\n"
+"  -trans   $trans                  (default value 0)\n"
+"\n"
+);
+}
+
+int do_speed_test2(int nArg, char **azArg){
+  struct Option {
+    const char *zOpt;
+    int eVal;
+    int iDefault;
+  } aOpt[] = {
+    { "-repeat",  ST_REPEAT,    10},
+    { "-write",   ST_WRITE,  10000},
+    { "-pause",   ST_PAUSE,      0},
+    { "-fetch",   ST_FETCH,      0},
+    { "-scan",    ST_SCAN,       0},
+    { "-nscan",   ST_NSCAN,      0},
+    { "-keysize", ST_KEYSIZE,   12},
+    { "-valsize", ST_VALSIZE,  100},
+    { "-trans",   ST_TRANS,      0},
+    { "-system",  -1,            0},
+    { "help",     -2,            0},
+    {0, 0, 0}
+  };
+  int i;
+  int aParam[9];
+  int rc = 0;
+  int bReadonly = 0;
+  int nContent = 0;
+
+  TestDb *pDb;
+  Datasource *pData;
+  DatasourceDefn defn = { TEST_DATASOURCE_RANDOM, 0, 0, 0, 0 };
+  char *zSystem = "";
+  int bLsm = 1;
+  FILE *pLog = 0;
+
+#ifdef NDEBUG
+  /* If NDEBUG is defined, disable the dynamic memory related checks in
+  ** lsmtest_mem.c. They slow things down.  */
+  testMallocUninstall(tdb_lsm_env());
+#endif
+
+  /* Initialize aParam[] with default values. */
+  for(i=0; i<ArraySize(aOpt); i++){
+    if( aOpt[i].zOpt ) aParam[aOpt[i].eVal] = aOpt[i].iDefault;
+  }
+
+  /* Process the command line switches. */
+  for(i=0; i<nArg; i+=2){
+    int iSel;
+    rc = testArgSelect(aOpt, "switch", azArg[i], &iSel);
+    if( rc ){
+      return rc;
+    }
+    if( aOpt[iSel].eVal==-2 ){
+      print_speed_test_help();
+      return 0;
+    }
+    if( i+1==nArg ){
+      testPrintError("option %s requires an argument\n", aOpt[iSel].zOpt);
+      return 1;
+    }
+    if( aOpt[iSel].eVal>=0 ){
+      aParam[aOpt[iSel].eVal] = atoi(azArg[i+1]);
+    }else{
+      zSystem = azArg[i+1];
+      bLsm = 0;
+#if 0
+      for(j=0; zSystem[j]; j++){
+        if( zSystem[j]=='=' ) bLsm = 1;
+      }
+#endif
+    }
+  }
+  
+  printf("#");
+  for(i=0; i<ArraySize(aOpt); i++){
+    if( aOpt[i].zOpt ){
+      if( aOpt[i].eVal>=0 ){
+        printf(" %s=%d", &aOpt[i].zOpt[1], aParam[aOpt[i].eVal]);
+      }else if( aOpt[i].eVal==-1 ){
+        printf(" %s=\"%s\"", &aOpt[i].zOpt[1], zSystem);
+      }
+    }
+  }
+  printf("\n");
+
+  defn.nMinKey = defn.nMaxKey = aParam[ST_KEYSIZE];
+  defn.nMinVal = defn.nMaxVal = aParam[ST_VALSIZE];
+  pData = testDatasourceNew(&defn);
+
+  if( aParam[ST_WRITE]==0 ){
+    bReadonly = 1;
+  }
+
+  if( bLsm ){
+    rc = tdb_lsm_open(zSystem, "testdb.lsm", !bReadonly, &pDb);
+  }else{
+    pDb = testOpen(zSystem, !bReadonly, &rc);
+  }
+  if( rc!=0 ) return rc;
+  if( bReadonly ){
+    nContent = testCountDatabase(pDb);
+  }
+
+#if 0
+  pLog = fopen("/tmp/speed.log", "w");
+  tdb_lsm_write_hook(pDb, do_speed_write_hook2, (void *)pLog);
+#endif
+
+  for(i=0; i<aParam[ST_REPEAT] && rc==0; i++){
+    int msWrite, msFetch;
+    int iFetch;
+    int nWrite = aParam[ST_WRITE];
+
+    if( bReadonly ){
+      msWrite = 0;
+    }else{
+      testTimeInit();
+
+      if( aParam[ST_TRANS] ) testBegin(pDb, 2, &rc);
+      testWriteDatasourceRange(pDb, pData, i*nWrite, nWrite, &rc);
+      if( aParam[ST_TRANS] ) testCommit(pDb, 0, &rc);
+
+      msWrite = testTimeGet();
+      nContent += nWrite;
+    }
+
+    if( aParam[ST_PAUSE] ){
+      if( aParam[ST_PAUSE]/1000 ) sleep(aParam[ST_PAUSE]/1000);
+      if( aParam[ST_PAUSE]%1000 ) usleep(1000 * (aParam[ST_PAUSE]%1000));
+    }
+
+    if( aParam[ST_FETCH] ){
+      testTimeInit();
+      if( aParam[ST_TRANS] ) testBegin(pDb, 1, &rc);
+      for(iFetch=0; iFetch<aParam[ST_FETCH]; iFetch++){
+        int iKey = testPrngValue(i*nWrite+iFetch) % nContent;
+#ifndef NDEBUG
+        testDatasourceFetch(pDb, pData, iKey, &rc);
+#else
+        void *pKey; int nKey;           /* Database key to query for */
+        void *pVal; int nVal;           /* Result of query */
+
+        testDatasourceEntry(pData, iKey, &pKey, &nKey, 0, 0);
+        rc = tdb_fetch(pDb, pKey, nKey, &pVal, &nVal);
+        if( rc==0 && nVal<0 ) rc = 1;
+        if( rc ) break;
+#endif
+      }
+      if( aParam[ST_TRANS] ) testCommit(pDb, 0, &rc);
+      msFetch = testTimeGet();
+    }else{
+      msFetch = 0;
+    }
+
+    if( i==(aParam[ST_REPEAT]-1) ){
+      testTimeInit();
+      testClose(&pDb);
+      msWrite += testTimeGet();
+    }
+
+    printf("%d %d %d\n", i, msWrite, msFetch);
+    fflush(stdout);
+  }
+
+  testClose(&pDb);
+  testDatasourceFree(pData);
+
+  if( pLog ){
+    flushPrev(pLog);
+    fclose(pLog);
+  }
+  return rc;
+}
+
+int do_speed_tests(int nArg, char **azArg){
+
+  struct DbSystem {
+    const char *zLibrary;
+    const char *zColor;
+  } aSys[] = {
+    { "sqlite3",      "black" },
+    { "leveldb",      "blue" },
+    { "lsm",          "red" },
+    { "lsm_mt2",      "orange" },
+    { "lsm_mt3",      "purple" },
+    { "kyotocabinet", "green" },
+    {0, 0}
+  };
+
+  int i;
+  int j;
+  int rc;
+  int nSleep = 0;                 /* ms of rest allowed between INSERT tests */
+  int nRow = 0;                   /* Number of rows to insert into database */
+  int nStep;                      /* Measure INSERT time after this many rows */
+  int nSelStep;                   /* Measure SELECT time after this many rows */
+  int nSelTest;                   /* Number of SELECTs to run for timing */
+  int doReadTest = 1;
+  int doWriteTest = 1;
+
+  int *aTime;                     /* INSERT timing data */
+  int *aWrite;                    /* Writes per nStep inserts */
+  int *aSelTime;                  /* SELECT timing data */
+  int isFirst = 1;
+  int bSleep = 0;
+
+  /* File to write gnuplot script to. */
+  const char *zOut = "lsmtest_speed.gnuplot";
+
+  u32 sys_mask = 0;
+
+  testMallocUninstall(tdb_lsm_env());
+
+  for(i=0; i<nArg; i++){
+    struct Opt { 
+      const char *zOpt; 
+      int isSwitch;
+    } aOpt[] = {
+      { "sqlite3" , 0},
+      { "leveldb" , 0},
+      { "lsm" , 0},
+      { "lsm_mt2" , 0},
+      { "lsm_mt3" , 0},
+      { "kyotocabinet" , 0},
+      { "-rows"     , 1},
+      { "-sleep"    , 2},
+      { "-testmode" , 3},
+      { "-out"      , 4},
+      { 0, 0}
+    };
+    int iSel;
+
+    rc = testArgSelect(aOpt, "argument", azArg[i], &iSel);
+    if( rc ) return rc;
+
+    if( aOpt[iSel].isSwitch ){
+      i++;
+
+      if( i>=nArg ){
+        testPrintError("option %s requires an argument\n", aOpt[iSel].zOpt);
+        return 1;
+      }
+      if( aOpt[iSel].isSwitch==1 ){
+        nRow = atoi(azArg[i]);
+      }
+      if( aOpt[iSel].isSwitch==2 ){
+        nSleep = atoi(azArg[i]);
+      }
+      if( aOpt[iSel].isSwitch==3 ){
+        struct Mode {
+          const char *zMode;
+          int doReadTest;
+          int doWriteTest;
+        } aMode[] = {{"ro", 1, 0} , {"rw", 1, 1}, {"wo", 0, 1}, {0, 0, 0}};
+        int iMode;
+        rc = testArgSelect(aMode, "option", azArg[i], &iMode);
+        if( rc ) return rc;
+        doReadTest = aMode[iMode].doReadTest;
+        doWriteTest = aMode[iMode].doWriteTest;
+      }
+      if( aOpt[iSel].isSwitch==4 ){
+        /* The "-out FILE" switch. This option is used to specify a file to
+        ** write the gnuplot script to. */
+        zOut = azArg[i];
+      }
+    }else{
+      /* A db name */
+      rc = testArgSelect(aOpt, "system", azArg[i], &iSel);
+      if( rc ) return rc;
+      sys_mask |= (1<<iSel);
+    }
+  }
+
+  if( sys_mask==0 ) sys_mask = (1 << 0) | (1 << 1) | (1 << 2) | (1 << 3);
+  nRow = MAX(nRow, 100000);
+  nStep = nRow/100;
+  nSelStep = nRow/10;
+  nSelTest = (nSelStep > 100000) ? 100000 : nSelStep;
+
+  aTime = malloc(sizeof(int) * ArraySize(aSys) * nRow/nStep);
+  aWrite = malloc(sizeof(int) * nRow/nStep);
+  aSelTime = malloc(sizeof(int) * ArraySize(aSys) * nRow/nSelStep);
+
+  /* This loop collects the INSERT speed data. */
+  if( doWriteTest ){
+    printf("Writing output to file \"%s\".\n",  zOut);
+
+    for(j=0; aSys[j].zLibrary; j++){
+      FILE *pLog = 0;
+      TestDb *pDb;                  /* Database being tested */
+      lsm_db *pLsm;
+      int iDot = 0;
+  
+      if( ((1<<j)&sys_mask)==0 ) continue;
+      if( bSleep && nSleep ) sqlite3_sleep(nSleep);
+      bSleep = 1;
+
+      testCaseBegin(&rc, 0, "speed.insert.%s", aSys[j].zLibrary);
+
+      rc = tdb_open(aSys[j].zLibrary, 0, 1, &pDb);
+      if( rc ) return rc;
+
+      pLsm = configure_lsm_db(pDb);
+#if 0
+      pLog = fopen("/tmp/speed.log", "w");
+      tdb_lsm_write_hook(pDb, do_speed_write_hook2, (void *)pLog);
+#endif
+  
+      testTimeInit();
+      for(i=0; i<nRow; i+=nStep){
+        int iStep;
+        int nWrite1 = 0, nWrite2 = 0;
+        testCaseProgress(i, nRow, testCaseNDot(), &iDot);
+        if( pLsm ) lsm_info(pLsm, LSM_INFO_NWRITE, &nWrite1);
+        for(iStep=0; iStep<nStep; iStep++){
+          u32 aKey[4];                  /* 16-byte key */
+          u32 aVal[25];                 /* 100 byte value */
+          testPrngArray(i+iStep, aKey, ArraySize(aKey));
+          testPrngArray(i+iStep, aVal, ArraySize(aVal));
+          rc = tdb_write(pDb, aKey, sizeof(aKey), aVal, sizeof(aVal));
+        }
+        aTime[(j*nRow+i)/nStep] = testTimeGet();
+        if( pLsm ) lsm_info(pLsm, LSM_INFO_NWRITE, &nWrite2);
+        aWrite[i/nStep] = nWrite2 - nWrite1;
+      }
+
+      tdb_close(pDb);
+      if( pLog ) fclose(pLog);
+      testCaseFinish(rc);
+    }
+  }
+
+  /* This loop collects the SELECT speed data. */
+  if( doReadTest ){
+    for(j=0; aSys[j].zLibrary; j++){
+      int iDot = 0;
+      TestDb *pDb;                  /* Database being tested */
+
+      if( ((1<<j)&sys_mask)==0 ) continue;
+      if( bSleep && nSleep ) sqlite3_sleep(nSleep);
+      bSleep = 1;
+
+      testCaseBegin(&rc, 0, "speed.select.%s", aSys[j].zLibrary);
+
+      if( doWriteTest ){
+        rc = tdb_open(aSys[j].zLibrary, 0, 1, &pDb);
+        if( rc ) return rc;
+        configure_lsm_db(pDb);
+
+        for(i=0; i<nRow; i+=nSelStep){
+          int iStep;
+          int iSel;
+          testCaseProgress(i, nRow, testCaseNDot(), &iDot);
+          for(iStep=0; iStep<nSelStep; iStep++){
+            u32 aKey[4];                  /* 16-byte key */
+            u32 aVal[25];                 /* 100 byte value */
+            testPrngArray(i+iStep, aKey, ArraySize(aKey));
+            testPrngArray(i+iStep, aVal, ArraySize(aVal));
+            rc = tdb_write(pDb, aKey, sizeof(aKey), aVal, sizeof(aVal));
+          }
+    
+          testTimeInit();
+          for(iSel=0; iSel<nSelTest; iSel++){
+            void *pDummy;
+            int nDummy;
+            u32 iKey;
+            u32 aKey[4];                  /* 16-byte key */
+    
+            iKey = testPrngValue(iSel) % (i+nSelStep);
+            testPrngArray(iKey, aKey, ArraySize(aKey));
+            rc = tdb_fetch(pDb, aKey, sizeof(aKey), &pDummy, &nDummy);
+          }
+          aSelTime[(j*nRow+i)/nSelStep] = testTimeGet();
+          tdb_fetch(pDb, 0, 0, 0, 0);
+        }
+      }else{
+        int t;
+        int iSel;
+
+        rc = tdb_open(aSys[j].zLibrary, 0, 0, &pDb);
+        configure_lsm_db(pDb);
+
+        testTimeInit();
+        for(iSel=0; rc==LSM_OK && iSel<nSelTest; iSel++){
+          void *pDummy;
+          int nDummy;
+          u32 iKey;
+          u32 aKey[4];                  /* 16-byte key */
+#ifndef NDEBUG
+          u32 aVal[25];                 /* 100 byte value */
+#endif
+
+          testCaseProgress(iSel, nSelTest, testCaseNDot(), &iDot);
+    
+          iKey = testPrngValue(iSel) % nRow;
+          testPrngArray(iKey, aKey, ArraySize(aKey));
+          rc = tdb_fetch(pDb, aKey, sizeof(aKey), &pDummy, &nDummy);
+
+#ifndef NDEBUG
+          testPrngArray(iKey, aVal, ArraySize(aVal));
+          assert( nDummy==100 && memcmp(aVal, pDummy, 100)==0 );
+#endif
+        }
+        if( rc!=LSM_OK ) return rc;
+
+        t = testTimeGet();
+        tdb_fetch(pDb, 0, 0, 0, 0);
+
+        printf("%s: %d selects/second\n", 
+            aSys[j].zLibrary, (int)((double)nSelTest*1000.0/t)
+        );
+      }
+
+      tdb_close(pDb);
+      testCaseFinish(rc);
+    }
+  }
+
+
+  if( doWriteTest ){
+    FILE *pOut = fopen(zOut, "w");
+    if( !pOut ){
+      printf("fopen(\"%s\", \"w\"): %s\n", zOut, strerror(errno));
+      return 1;
+    }
+
+    fprintf(pOut, "set xlabel \"Rows Inserted\"\n");
+    fprintf(pOut, "set ylabel \"Inserts per second\"\n");
+    if( doReadTest ){
+      fprintf(pOut, "set y2label \"Selects per second\"\n");
+    }else if( sys_mask==(1<<2) ){
+      fprintf(pOut, "set y2label \"Page writes per insert\"\n");
+    }
+    fprintf(pOut, "set yrange [0:*]\n");
+    fprintf(pOut, "set y2range [0:*]\n");
+    fprintf(pOut, "set xrange [%d:*]\n", MAX(nStep, nRow/20) );
+    fprintf(pOut, "set ytics nomirror\n");
+    fprintf(pOut, "set y2tics nomirror\n");
+    fprintf(pOut, "set key box lw 0.01\n");
+    fprintf(pOut, "plot ");
+  
+    for(j=0; aSys[j].zLibrary; j++){
+      if( (1<<j)&sys_mask ){
+        const char *zLib = aSys[j].zLibrary;
+        fprintf(pOut, "%s\"-\" ti \"%s INSERT\" with lines lc rgb \"%s\" ", 
+            (isFirst?"":", "), zLib, aSys[j].zColor
+        );
+        if( doReadTest ){
+          fprintf(pOut, ", \"-\" ti \"%s SELECT\" "
+                 "axis x1y2 with points lw 3 lc rgb \"%s\""
+              , zLib, aSys[j].zColor
+          );
+        }
+        isFirst = 0;
+      }
+    }
+
+    assert( strcmp(aSys[2].zLibrary, "lsm")==0 );
+    if( sys_mask==(1<<2) && !doReadTest ){
+      fprintf(pOut, ", \"-\" ti \"lsm pages written\" "
+        "axis x1y2 with boxes lw 1 lc rgb \"grey\""
+      );
+    }
+  
+    fprintf(pOut, "\n");
+  
+    for(j=0; aSys[j].zLibrary; j++){
+      if( ((1<<j)&sys_mask)==0 ) continue;
+      fprintf(pOut, "# Rows    Inserts per second\n");
+      for(i=0; i<nRow; i+=nStep){
+        int iTime = aTime[(j*nRow+i)/nStep];
+        int ips = (int)((i+nStep)*1000.0 / (double)iTime);
+        fprintf(pOut, "%d %d\n", i+nStep, ips);
+      }
+      fprintf(pOut, "end\n");
+  
+      if( doReadTest ){
+        fprintf(pOut, "# Rows    Selects per second\n");
+        for(i=0; i<nRow; i+=nSelStep){
+          int sps = (int)(nSelTest*1000.0/(double)aSelTime[(j*nRow+i)/nSelStep]);
+          fprintf(pOut, "%d %d\n", i+nSelStep, sps);
+        }
+        fprintf(pOut, "end\n");
+      }else if( sys_mask==(1<<2) ){
+        for(i=0; i<(nRow/nStep); i++){
+          fprintf(pOut, "%d %f\n", i*nStep, (double)aWrite[i] / (double)nStep);
+        }
+        fprintf(pOut, "end\n");
+      }
+    }
+  
+    fprintf(pOut, "pause -1\n");
+    fclose(pOut);
+  }
+
+  free(aTime);
+  free(aSelTime);
+  free(aWrite);
+  testMallocInstall(tdb_lsm_env());
+  return 0;
+}
+
+/*
+** Usage: lsmtest random ?N?
+**
+** This command prints a sequence of zero or more numbers from the PRNG
+** system to stdout. If the "N" argument is missing, values the first 10
+** values (i=0, i=1, ... i=9) are printed. Otherwise, the first N.
+**
+** This was added to verify that the PRNG values do not change between
+** runs of the lsmtest program.
+*/
+int do_random_tests(int nArg, char **azArg){
+  int i;
+  int nRand;
+  if( nArg==0 ){
+    nRand = 10;
+  }else if( nArg==1 ){
+    nRand = atoi(azArg[0]);
+  }else{
+    testPrintError("Usage: random ?N?\n");
+    return -1;
+  }
+  for(i=0; i<nRand; i++){
+    printf("0x%x\n", testPrngValue(i));
+  }
+  return 0;
+}
+
+static int testFormatSize(char *aBuf, int nBuf, i64 nByte){
+  int res;
+  if( nByte<(1<<10) ){
+    res = snprintf(aBuf, nBuf, "%d byte", (int)nByte);
+  }else if( nByte<(1<<20) ){
+    res = snprintf(aBuf, nBuf, "%dK", (int)(nByte/(1<<10)));
+  }else{
+    res = snprintf(aBuf, nBuf, "%dM", (int)(nByte/(1<<20)));
+  }
+  return res;
+}
+
+static i64 testReadSize(char *z){
+  int n = strlen(z);
+  char c = z[n-1];
+  i64 nMul = 1;
+
+  switch( c ){
+    case 'g': case 'G':
+      nMul = (1<<30);
+      break;
+
+    case 'm': case 'M':
+      nMul = (1<<20);
+      break;
+
+    case 'k': case 'K':
+      nMul = (1<<10);
+      break;
+
+    default:
+      nMul = 1;
+  }
+
+  return nMul * (i64)atoi(z);
+} 
+
+/*
+** Usage: lsmtest writespeed FILESIZE BLOCKSIZE SYNCSIZE
+*/
+static int do_writer_test(int nArg, char **azArg){
+  int nBlock;
+  int nSize;
+  int i;
+  int fd;
+  int ms;
+  char aFilesize[32];
+  char aBlockSize[32];
+
+  char *aPage;
+  int *aOrder;
+  int nSync;
+
+  i64 filesize;
+  i64 blocksize;
+  i64 syncsize;
+  int nPage = 4096;
+
+  /* How long to sleep before running a trial (in ms). */
+#if 0
+  const int nSleep = 10000;
+#endif
+  const int nSleep = 0;
+
+  if( nArg!=3 ){
+    testPrintUsage("FILESIZE BLOCKSIZE SYNCSIZE");
+    return -1;
+  }
+
+  filesize = testReadSize(azArg[0]);
+  blocksize = testReadSize(azArg[1]);
+  syncsize = testReadSize(azArg[2]);
+
+  nBlock = (int)(filesize / blocksize);
+  nSize = (int)blocksize;
+  nSync = (int)(syncsize / blocksize);
+
+  aPage = (char *)malloc(4096);
+  aOrder = (int *)malloc(nBlock * sizeof(int));
+  for(i=0; i<nBlock; i++) aOrder[i] = i;
+  for(i=0; i<(nBlock*25); i++){
+    int tmp;
+    u32 a = testPrngValue(i);
+    u32 b = testPrngValue(a);
+    a = a % nBlock;
+    b = b % nBlock;
+    tmp = aOrder[a];
+    aOrder[a] = aOrder[b];
+    aOrder[b] = tmp;
+  }
+
+  testFormatSize(aFilesize, sizeof(aFilesize), (i64)nBlock * (i64)nSize);
+  testFormatSize(aBlockSize, sizeof(aFilesize), nSize);
+
+  printf("Testing writing a %s file using %s blocks. ", aFilesize, aBlockSize);
+  if( nSync==1 ){
+    printf("Sync after each block.\n");
+  }else{
+    printf("Sync after each %d blocks.\n", nSync);
+  }
+
+  printf("Preparing file... ");
+  fflush(stdout);
+  unlink("writer.out");
+  fd = open("writer.out", O_RDWR|O_CREAT|_O_BINARY, 0664);
+  if( fd<0 ){
+    testPrintError("open(): %d - %s\n", errno, strerror(errno));
+    return -1;
+  }
+  testTimeInit();
+  for(i=0; i<nBlock; i++){
+    int iPg;
+    memset(aPage, i&0xFF, nPage);
+    for(iPg=0; iPg<(nSize/nPage); iPg++){
+      write(fd, aPage, nPage);
+    }
+  }
+  fsync(fd);
+  printf("ok (%d ms)\n", testTimeGet());
+
+  for(i=0; i<5; i++){
+    int j;
+
+    sqlite3_sleep(nSleep);
+    printf("Now writing sequentially...  ");
+    fflush(stdout);
+
+    lseek(fd, 0, SEEK_SET);
+    testTimeInit();
+    for(j=0; j<nBlock; j++){
+      int iPg;
+      if( ((j+1)%nSync)==0 ) fdatasync(fd);
+      memset(aPage, j&0xFF, nPage);
+      for(iPg=0; iPg<(nSize/nPage); iPg++){
+        write(fd, aPage, nPage);
+      }
+    }
+    fdatasync(fd);
+    ms = testTimeGet();
+    printf("%d ms\n", ms);
+    sqlite3_sleep(nSleep);
+    printf("Now in an arbitrary order... ");
+
+    fflush(stdout);
+    testTimeInit();
+    for(j=0; j<nBlock; j++){
+      int iPg;
+      if( ((j+1)%nSync)==0 ) fdatasync(fd);
+      lseek(fd, aOrder[j]*nSize, SEEK_SET);
+      memset(aPage, j&0xFF, nPage);
+      for(iPg=0; iPg<(nSize/nPage); iPg++){
+        write(fd, aPage, nPage);
+      }
+    }
+    fdatasync(fd);
+    ms = testTimeGet();
+    printf("%d ms\n", ms);
+  }
+
+  close(fd);
+  free(aPage);
+  free(aOrder);
+
+  return 0;
+}
+
+static void do_insert_work_hook(lsm_db *db, void *p){
+  char *z = 0;
+  lsm_info(db, LSM_INFO_DB_STRUCTURE, &z);
+  if( z ){
+    printf("%s\n", z);
+    fflush(stdout);
+    lsm_free(lsm_get_env(db), z);
+  }
+
+  unused_parameter(p);
+}
+
+typedef struct InsertWriteHook InsertWriteHook;
+struct InsertWriteHook {
+  FILE *pOut;
+  int bLog;
+  i64 iOff;
+  int nData;
+};
+
+static void flushHook(InsertWriteHook *pHook){
+  if( pHook->nData ){
+    fprintf(pHook->pOut, "write %s %d %d\n", 
+        (pHook->bLog ? "log" : "db"), (int)pHook->iOff, pHook->nData
+    );
+    pHook->nData = 0;
+    fflush(pHook->pOut);
+  }
+}
+
+static void do_insert_write_hook(
+  void *pCtx,
+  int bLog,
+  i64 iOff,
+  int nData,
+  int nUs
+){
+  InsertWriteHook *pHook = (InsertWriteHook *)pCtx;
+  if( bLog ) return;
+
+  if( nData==0 ){
+    flushHook(pHook);
+    fprintf(pHook->pOut, "sync %s\n", (bLog ? "log" : "db"));
+  }else if( pHook->nData 
+         && bLog==pHook->bLog 
+         && iOff==(pHook->iOff+pHook->nData) 
+  ){
+    pHook->nData += nData;
+  }else{
+    flushHook(pHook);
+    pHook->bLog = bLog;
+    pHook->iOff = iOff;
+    pHook->nData = nData;
+  }
+}
+
+static int do_replay(int nArg, char **azArg){
+  char aBuf[4096];
+  FILE *pInput;
+  FILE *pClose = 0;
+  const char *zDb;
+
+  lsm_env *pEnv;
+  lsm_file *pOut;
+  int rc;
+
+  if( nArg!=2 ){
+    testPrintError("Usage: replay WRITELOG FILE\n");
+    return 1;
+  }
+
+  if( strcmp(azArg[0], "-")==0 ){
+    pInput = stdin;
+  }else{
+    pClose = pInput = fopen(azArg[0], "r");
+  }
+  zDb = azArg[1];
+  pEnv = tdb_lsm_env();
+  rc = pEnv->xOpen(pEnv, zDb, 0, &pOut);
+  if( rc!=LSM_OK ) return rc;
+
+  while( feof(pInput)==0 ){
+    char zLine[80];
+    fgets(zLine, sizeof(zLine)-1, pInput);
+    zLine[sizeof(zLine)-1] = '\0';
+
+    if( 0==memcmp("sync db", zLine, 7) ){
+      rc = pEnv->xSync(pOut);
+      if( rc!=0 ) break;
+    }else{
+      int iOff;
+      int nData;
+      int nMatch;
+      nMatch = sscanf(zLine, "write db %d %d", &iOff, &nData);
+      if( nMatch==2 ){
+        int i;
+        for(i=0; i<nData; i+=sizeof(aBuf)){
+          memset(aBuf, i&0xFF, sizeof(aBuf));
+          rc = pEnv->xWrite(pOut, iOff+i, aBuf, sizeof(aBuf));
+          if( rc!=0 ) break;
+        }
+      }
+    }
+  }
+  if( pClose ) fclose(pClose);
+  pEnv->xClose(pOut);
+
+  return rc;
+}
+
+static int do_insert(int nArg, char **azArg){
+  const char *zDb = "lsm";
+  TestDb *pDb = 0;
+  int i;
+  int rc;
+  const int nRow = 1 * 1000 * 1000;
+
+  DatasourceDefn defn = { TEST_DATASOURCE_RANDOM, 8, 15, 80, 150 };
+  Datasource *pData = 0;
+
+  if( nArg>1 ){
+    testPrintError("Usage: insert ?DATABASE?\n");
+    return 1;
+  }
+  if( nArg==1 ){ zDb = azArg[0]; }
+
+  testMallocUninstall(tdb_lsm_env());
+  for(i=0; zDb[i] && zDb[i]!='='; i++);
+  if( zDb[i] ){
+    rc = tdb_lsm_open(zDb, "testdb.lsm", 1, &pDb);
+  }else{
+    rc = tdb_open(zDb, 0, 1, &pDb);
+  }
+
+  if( rc!=0 ){
+    testPrintError("Error opening db \"%s\": %d\n", zDb, rc);
+  }else{
+    InsertWriteHook hook;
+    memset(&hook, 0, sizeof(hook));
+    hook.pOut = fopen("writelog.txt", "w");
+
+    pData = testDatasourceNew(&defn);
+    tdb_lsm_config_work_hook(pDb, do_insert_work_hook, 0);
+    tdb_lsm_write_hook(pDb, do_insert_write_hook, (void *)&hook);
+
+    if( rc==0 ){
+      for(i=0; i<nRow; i++){
+        void *pKey; int nKey;     /* Database key to insert */
+        void *pVal; int nVal;     /* Database value to insert */
+        testDatasourceEntry(pData, i, &pKey, &nKey, &pVal, &nVal);
+        tdb_write(pDb, pKey, nKey, pVal, nVal);
+      }
+    }
+
+    testDatasourceFree(pData);
+    tdb_close(pDb);
+    flushHook(&hook);
+    fclose(hook.pOut);
+  }
+  testMallocInstall(tdb_lsm_env());
+
+  return rc;
+}
+
+static int st_do_show(int a, char **b)      { return do_show(a, b); }
+static int st_do_work(int a, char **b)      { return do_work(a, b); }
+static int st_do_io(int a, char **b)        { return do_io(a, b); }
+
+#ifdef __linux__
+#include <sys/time.h>
+#include <sys/resource.h>
+
+static void lsmtest_rusage_report(void){
+  struct rusage r;
+  memset(&r, 0, sizeof(r));
+
+  getrusage(RUSAGE_SELF, &r);
+  printf("# getrusage: { ru_maxrss %d ru_oublock %d ru_inblock %d }\n", 
+      (int)r.ru_maxrss, (int)r.ru_oublock, (int)r.ru_inblock
+  );
+}
+#else
+static void lsmtest_rusage_report(void){
+  /* no-op */
+}
+#endif
+
+int main(int argc, char **argv){
+  struct TestFunc {
+    const char *zName;
+    int bRusageReport;
+    int (*xFunc)(int, char **);
+  } aTest[] = {
+    {"random",      1, do_random_tests},
+    {"writespeed",  1, do_writer_test},
+    {"io",          1, st_do_io},
+
+    {"insert",      1, do_insert},
+    {"replay",      1, do_replay},
+
+    {"speed",       1, do_speed_tests},
+    {"speed2",      1, do_speed_test2},
+    {"show",        0, st_do_show},
+    {"work",        1, st_do_work},
+    {"test",        1, do_test},
+
+    {0, 0}
+  };
+  int rc;                         /* Return Code */
+  int iFunc;                      /* Index into aTest[] */
+
+  int nLeakAlloc = 0;             /* Allocations leaked by lsm */
+  int nLeakByte = 0;              /* Bytes leaked by lsm */
+
+#ifdef LSM_DEBUG_MEM
+  FILE *pReport = 0;              /* lsm malloc() report file */
+  const char *zReport = "malloc.txt generated";
+#else
+  const char *zReport = "malloc.txt NOT generated";
+#endif
+
+  testMallocInstall(tdb_lsm_env());
+
+  if( argc<2 ){
+    testPrintError("Usage: %s sub-command ?args...?\n", argv[0]);
+    return -1;
+  }
+
+  /* Initialize error reporting */
+  testErrorInit(argc, argv);
+
+  /* Initialize PRNG system */
+  testPrngInit();
+
+  rc = testArgSelect(aTest, "sub-command", argv[1], &iFunc);
+  if( rc==0 ){
+    rc = aTest[iFunc].xFunc(argc-2, &argv[2]);
+  }
+
+#ifdef LSM_DEBUG_MEM
+  pReport = fopen("malloc.txt", "w");
+  testMallocCheck(tdb_lsm_env(), &nLeakAlloc, &nLeakByte, pReport);
+  fclose(pReport);
+#else
+  testMallocCheck(tdb_lsm_env(), &nLeakAlloc, &nLeakByte, 0);
+#endif
+
+  if( nLeakAlloc ){
+    testPrintError("Leaked %d bytes in %d allocations (%s)\n", 
+        nLeakByte, nLeakAlloc, zReport
+    );
+    if( rc==0 ) rc = -1;
+  }
+  testMallocUninstall(tdb_lsm_env());
+
+  if( aTest[iFunc].bRusageReport ){
+    lsmtest_rusage_report();
+  }
+  return rc;
+}
diff --git a/ext/lsm1/lsm-test/lsmtest_mem.c b/ext/lsm1/lsm-test/lsmtest_mem.c
new file mode 100644
index 0000000000000000000000000000000000000000..4c35e849f2504a73584bf0385f28cbc0daa9a966
--- /dev/null
+++ b/ext/lsm1/lsm-test/lsmtest_mem.c
@@ -0,0 +1,409 @@
+
+#include <stdio.h>
+#include <assert.h>
+#include <string.h>
+
+#define ArraySize(x) ((int)(sizeof(x) / sizeof((x)[0])))
+
+#define MIN(x,y) ((x)<(y) ? (x) : (y))
+
+typedef unsigned int  u32;
+typedef unsigned char u8;
+typedef long long int i64;
+typedef unsigned long long int u64;
+
+#if defined(__GLIBC__) && defined(LSM_DEBUG_MEM)
+  extern int backtrace(void**,int);
+  extern void backtrace_symbols_fd(void*const*,int,int);
+# define TM_BACKTRACE 12
+#else
+# define backtrace(A,B) 1
+# define backtrace_symbols_fd(A,B,C)
+#endif
+
+
+typedef struct TmBlockHdr TmBlockHdr;
+typedef struct TmAgg TmAgg;
+typedef struct TmGlobal TmGlobal;
+
+struct TmGlobal {
+  /* Linked list of all currently outstanding allocations. And a table of
+  ** all allocations, past and present, indexed by backtrace() info.  */
+  TmBlockHdr *pFirst;
+#ifdef TM_BACKTRACE
+  TmAgg *aHash[10000];
+#endif
+
+  /* Underlying malloc/realloc/free functions */
+  void *(*xMalloc)(int);          /* underlying malloc(3) function */
+  void *(*xRealloc)(void *, int); /* underlying realloc(3) function */
+  void (*xFree)(void *);          /* underlying free(3) function */
+
+  /* Mutex to protect pFirst and aHash */
+  void (*xEnterMutex)(TmGlobal*); /* Call this to enter the mutex */
+  void (*xLeaveMutex)(TmGlobal*); /* Call this to leave mutex */
+  void (*xDelMutex)(TmGlobal*);   /* Call this to delete mutex */
+  void *pMutex;                   /* Mutex handle */
+
+  void *(*xSaveMalloc)(void *, size_t);
+  void *(*xSaveRealloc)(void *, void *, size_t);
+  void (*xSaveFree)(void *, void *);
+
+  /* OOM injection scheduling. If nCountdown is greater than zero when a 
+  ** malloc attempt is made, it is decremented. If this means nCountdown 
+  ** transitions from 1 to 0, then the allocation fails. If bPersist is true 
+  ** when this happens, nCountdown is then incremented back to 1 (so that the 
+  ** next attempt fails too).  
+  */
+  int nCountdown;
+  int bPersist;
+  int bEnable;
+  void (*xHook)(void *);
+  void *pHookCtx;
+};
+
+struct TmBlockHdr {
+  TmBlockHdr *pNext;
+  TmBlockHdr *pPrev;
+  int nByte;
+#ifdef TM_BACKTRACE
+  TmAgg *pAgg;
+#endif
+  u32 iForeGuard;
+};
+
+#ifdef TM_BACKTRACE
+struct TmAgg {
+  int nAlloc;                     /* Number of allocations at this path */
+  int nByte;                      /* Total number of bytes allocated */
+  int nOutAlloc;                  /* Number of outstanding allocations */
+  int nOutByte;                   /* Number of outstanding bytes */
+  void *aFrame[TM_BACKTRACE];     /* backtrace() output */
+  TmAgg *pNext;                   /* Next object in hash-table collision */
+};
+#endif
+
+#define FOREGUARD 0x80F5E153
+#define REARGUARD 0xE4676B53
+static const u32 rearguard = REARGUARD;
+
+#define ROUND8(x) (((x)+7)&~7)
+
+#define BLOCK_HDR_SIZE (ROUND8( sizeof(TmBlockHdr) ))
+
+static void lsmtest_oom_error(void){
+  static int nErr = 0;
+  nErr++;
+}
+
+static void tmEnterMutex(TmGlobal *pTm){
+  pTm->xEnterMutex(pTm);
+}
+static void tmLeaveMutex(TmGlobal *pTm){
+  pTm->xLeaveMutex(pTm);
+}
+
+static void *tmMalloc(TmGlobal *pTm, int nByte){
+  TmBlockHdr *pNew;               /* New allocation header block */
+  u8 *pUser;                      /* Return value */
+  int nReq;                       /* Total number of bytes requested */
+
+  assert( sizeof(rearguard)==4 );
+  nReq = BLOCK_HDR_SIZE + nByte + 4;
+  pNew = (TmBlockHdr *)pTm->xMalloc(nReq);
+  memset(pNew, 0, sizeof(TmBlockHdr));
+
+  tmEnterMutex(pTm);
+  assert( pTm->nCountdown>=0 );
+  assert( pTm->bPersist==0 || pTm->bPersist==1 );
+
+  if( pTm->bEnable && pTm->nCountdown==1 ){
+    /* Simulate an OOM error. */
+    lsmtest_oom_error();
+    pTm->xFree(pNew);
+    pTm->nCountdown = pTm->bPersist;
+    if( pTm->xHook ) pTm->xHook(pTm->pHookCtx);
+    pUser = 0;
+  }else{
+    if( pTm->bEnable && pTm->nCountdown ) pTm->nCountdown--;
+
+    pNew->iForeGuard = FOREGUARD;
+    pNew->nByte = nByte;
+    pNew->pNext = pTm->pFirst;
+
+    if( pTm->pFirst ){
+      pTm->pFirst->pPrev = pNew;
+    }
+    pTm->pFirst = pNew;
+
+    pUser = &((u8 *)pNew)[BLOCK_HDR_SIZE];
+    memset(pUser, 0x56, nByte);
+    memcpy(&pUser[nByte], &rearguard, 4);
+
+#ifdef TM_BACKTRACE
+    {
+      TmAgg *pAgg;
+      int i;
+      u32 iHash = 0;
+      void *aFrame[TM_BACKTRACE];
+      memset(aFrame, 0, sizeof(aFrame));
+      backtrace(aFrame, TM_BACKTRACE);
+
+      for(i=0; i<ArraySize(aFrame); i++){
+        iHash += (u64)(aFrame[i]) + (iHash<<3);
+      }
+      iHash = iHash % ArraySize(pTm->aHash);
+
+      for(pAgg=pTm->aHash[iHash]; pAgg; pAgg=pAgg->pNext){
+        if( memcmp(pAgg->aFrame, aFrame, sizeof(aFrame))==0 ) break;
+      }
+      if( !pAgg ){
+        pAgg = (TmAgg *)pTm->xMalloc(sizeof(TmAgg));
+        memset(pAgg, 0, sizeof(TmAgg));
+        memcpy(pAgg->aFrame, aFrame, sizeof(aFrame));
+        pAgg->pNext = pTm->aHash[iHash];
+        pTm->aHash[iHash] = pAgg;
+      }
+      pAgg->nAlloc++;
+      pAgg->nByte += nByte;
+      pAgg->nOutAlloc++;
+      pAgg->nOutByte += nByte;
+      pNew->pAgg = pAgg;
+    }
+#endif
+  }
+
+  tmLeaveMutex(pTm);
+  return pUser;
+}
+
+static void tmFree(TmGlobal *pTm, void *p){
+  if( p ){
+    TmBlockHdr *pHdr;
+    u8 *pUser = (u8 *)p;
+
+    tmEnterMutex(pTm);
+    pHdr = (TmBlockHdr *)(pUser - BLOCK_HDR_SIZE);
+    assert( pHdr->iForeGuard==FOREGUARD );
+    assert( 0==memcmp(&pUser[pHdr->nByte], &rearguard, 4) );
+
+    if( pHdr->pPrev ){
+      assert( pHdr->pPrev->pNext==pHdr );
+      pHdr->pPrev->pNext = pHdr->pNext;
+    }else{
+      assert( pHdr==pTm->pFirst );
+      pTm->pFirst = pHdr->pNext;
+    }
+    if( pHdr->pNext ){
+      assert( pHdr->pNext->pPrev==pHdr );
+      pHdr->pNext->pPrev = pHdr->pPrev;
+    }
+
+#ifdef TM_BACKTRACE
+    pHdr->pAgg->nOutAlloc--;
+    pHdr->pAgg->nOutByte -= pHdr->nByte;
+#endif
+
+    tmLeaveMutex(pTm);
+    memset(pUser, 0x58, pHdr->nByte);
+    memset(pHdr, 0x57, sizeof(TmBlockHdr));
+    pTm->xFree(pHdr);
+  }
+}
+
+static void *tmRealloc(TmGlobal *pTm, void *p, int nByte){
+  void *pNew;
+
+  pNew = tmMalloc(pTm, nByte);
+  if( pNew && p ){
+    TmBlockHdr *pHdr;
+    u8 *pUser = (u8 *)p;
+    pHdr = (TmBlockHdr *)(pUser - BLOCK_HDR_SIZE);
+    memcpy(pNew, p, MIN(nByte, pHdr->nByte));
+    tmFree(pTm, p);
+  }
+  return pNew;
+}
+
+static void tmMallocOom(
+  TmGlobal *pTm, 
+  int nCountdown, 
+  int bPersist,
+  void (*xHook)(void *),
+  void *pHookCtx
+){
+  assert( nCountdown>=0 );
+  assert( bPersist==0 || bPersist==1 );
+  pTm->nCountdown = nCountdown;
+  pTm->bPersist = bPersist;
+  pTm->xHook = xHook;
+  pTm->pHookCtx = pHookCtx;
+  pTm->bEnable = 1;
+}
+
+static void tmMallocOomEnable(
+  TmGlobal *pTm, 
+  int bEnable
+){
+  pTm->bEnable = bEnable;
+}
+
+static void tmMallocCheck(
+  TmGlobal *pTm,
+  int *pnLeakAlloc,
+  int *pnLeakByte,
+  FILE *pFile
+){
+  TmBlockHdr *pHdr;
+  int nLeak = 0;
+  int nByte = 0;
+
+  if( pTm==0 ) return;
+
+  for(pHdr=pTm->pFirst; pHdr; pHdr=pHdr->pNext){
+    nLeak++; 
+    nByte += pHdr->nByte;
+  }
+  if( pnLeakAlloc ) *pnLeakAlloc = nLeak;
+  if( pnLeakByte ) *pnLeakByte = nByte;
+
+#ifdef TM_BACKTRACE
+  if( pFile ){
+    int i;
+    fprintf(pFile, "LEAKS\n");
+    for(i=0; i<ArraySize(pTm->aHash); i++){
+      TmAgg *pAgg;
+      for(pAgg=pTm->aHash[i]; pAgg; pAgg=pAgg->pNext){
+        if( pAgg->nOutAlloc ){
+          int j;
+          fprintf(pFile, "%d %d ", pAgg->nOutByte, pAgg->nOutAlloc);
+          for(j=0; j<TM_BACKTRACE; j++){
+            fprintf(pFile, "%p ", pAgg->aFrame[j]);
+          }
+          fprintf(pFile, "\n");
+        }
+      }
+    }
+    fprintf(pFile, "\nALLOCATIONS\n");
+    for(i=0; i<ArraySize(pTm->aHash); i++){
+      TmAgg *pAgg;
+      for(pAgg=pTm->aHash[i]; pAgg; pAgg=pAgg->pNext){
+        int j;
+        fprintf(pFile, "%d %d ", pAgg->nByte, pAgg->nAlloc);
+        for(j=0; j<TM_BACKTRACE; j++) fprintf(pFile, "%p ", pAgg->aFrame[j]);
+        fprintf(pFile, "\n");
+      }
+    }
+  }
+#else
+  (void)pFile;
+#endif
+}
+
+
+#include "lsm.h"
+#include "stdlib.h"
+
+typedef struct LsmMutex LsmMutex;
+struct LsmMutex {
+  lsm_env *pEnv;
+  lsm_mutex *pMutex;
+};
+
+static void tmLsmMutexEnter(TmGlobal *pTm){
+  LsmMutex *p = (LsmMutex *)pTm->pMutex;
+  p->pEnv->xMutexEnter(p->pMutex);
+}
+static void tmLsmMutexLeave(TmGlobal *pTm){
+  LsmMutex *p = (LsmMutex *)(pTm->pMutex);
+  p->pEnv->xMutexLeave(p->pMutex);
+}
+static void tmLsmMutexDel(TmGlobal *pTm){
+  LsmMutex *p = (LsmMutex *)pTm->pMutex;
+  pTm->xFree(p);
+}
+static void *tmLsmMalloc(int n){ return malloc(n); }
+static void tmLsmFree(void *ptr){ free(ptr); }
+static void *tmLsmRealloc(void *ptr, int n){ return realloc(ptr, n); }
+
+static void *tmLsmEnvMalloc(lsm_env *p, size_t n){ 
+  return tmMalloc((TmGlobal *)(p->pMemCtx), n); 
+}
+static void tmLsmEnvFree(lsm_env *p, void *ptr){ 
+  tmFree((TmGlobal *)(p->pMemCtx), ptr); 
+}
+static void *tmLsmEnvRealloc(lsm_env *p, void *ptr, size_t n){ 
+  return tmRealloc((TmGlobal *)(p->pMemCtx), ptr, n);
+}
+
+void testMallocInstall(lsm_env *pEnv){
+  TmGlobal *pGlobal;
+  LsmMutex *pMutex;
+  assert( pEnv->pMemCtx==0 );
+
+  /* Allocate and populate a TmGlobal structure. */
+  pGlobal = (TmGlobal *)tmLsmMalloc(sizeof(TmGlobal));
+  memset(pGlobal, 0, sizeof(TmGlobal));
+  pGlobal->xMalloc = tmLsmMalloc;
+  pGlobal->xRealloc = tmLsmRealloc;
+  pGlobal->xFree = tmLsmFree;
+  pMutex = (LsmMutex *)pGlobal->xMalloc(sizeof(LsmMutex));
+  pMutex->pEnv = pEnv;
+  pEnv->xMutexStatic(pEnv, LSM_MUTEX_HEAP, &pMutex->pMutex);
+  pGlobal->xEnterMutex = tmLsmMutexEnter;
+  pGlobal->xLeaveMutex = tmLsmMutexLeave;
+  pGlobal->xDelMutex = tmLsmMutexDel;
+  pGlobal->pMutex = (void *)pMutex;
+
+  pGlobal->xSaveMalloc = pEnv->xMalloc;
+  pGlobal->xSaveRealloc = pEnv->xRealloc;
+  pGlobal->xSaveFree = pEnv->xFree;
+
+  /* Set up pEnv to the use the new TmGlobal */
+  pEnv->pMemCtx = (void *)pGlobal;
+  pEnv->xMalloc = tmLsmEnvMalloc;
+  pEnv->xRealloc = tmLsmEnvRealloc;
+  pEnv->xFree = tmLsmEnvFree;
+}
+
+void testMallocUninstall(lsm_env *pEnv){
+  TmGlobal *p = (TmGlobal *)pEnv->pMemCtx;
+  pEnv->pMemCtx = 0;
+  if( p ){
+    pEnv->xMalloc = p->xSaveMalloc;
+    pEnv->xRealloc = p->xSaveRealloc;
+    pEnv->xFree = p->xSaveFree;
+    p->xDelMutex(p);
+    tmLsmFree(p);
+  }
+}
+
+void testMallocCheck(
+  lsm_env *pEnv,
+  int *pnLeakAlloc,
+  int *pnLeakByte,
+  FILE *pFile
+){
+  if( pEnv->pMemCtx==0 ){
+    *pnLeakAlloc = 0;
+    *pnLeakByte = 0;
+  }else{
+    tmMallocCheck((TmGlobal *)(pEnv->pMemCtx), pnLeakAlloc, pnLeakByte, pFile);
+  }
+}
+
+void testMallocOom(
+  lsm_env *pEnv, 
+  int nCountdown, 
+  int bPersist,
+  void (*xHook)(void *),
+  void *pHookCtx
+){
+  TmGlobal *pTm = (TmGlobal *)(pEnv->pMemCtx);
+  tmMallocOom(pTm, nCountdown, bPersist, xHook, pHookCtx);
+}
+
+void testMallocOomEnable(lsm_env *pEnv, int bEnable){
+  TmGlobal *pTm = (TmGlobal *)(pEnv->pMemCtx);
+  tmMallocOomEnable(pTm, bEnable);
+}
diff --git a/ext/lsm1/lsm-test/lsmtest_tdb.c b/ext/lsm1/lsm-test/lsmtest_tdb.c
new file mode 100644
index 0000000000000000000000000000000000000000..8f63f64acb7c7f084f62ada7c2ac1d7ad4711a45
--- /dev/null
+++ b/ext/lsm1/lsm-test/lsmtest_tdb.c
@@ -0,0 +1,846 @@
+
+/*
+** This program attempts to test the correctness of some facets of the 
+** LSM database library. Specifically, that the contents of the database
+** are maintained correctly during a series of inserts and deletes.
+*/
+
+
+#include "lsmtest_tdb.h"
+#include "lsm.h"
+
+#include "lsmtest.h"
+
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#ifndef _WIN32
+# include <unistd.h>
+#endif
+#include <stdio.h>
+
+
+typedef struct SqlDb SqlDb;
+
+static int error_transaction_function(TestDb *p, int iLevel){ 
+  unused_parameter(p);
+  unused_parameter(iLevel);
+  return -1; 
+}
+
+
+/*************************************************************************
+** Begin wrapper for LevelDB.
+*/
+#ifdef HAVE_LEVELDB
+
+#include <leveldb/c.h>
+
+typedef struct LevelDb LevelDb;
+struct LevelDb {
+  TestDb base;
+  leveldb_t *db;
+  leveldb_options_t *pOpt;
+  leveldb_writeoptions_t *pWriteOpt;
+  leveldb_readoptions_t *pReadOpt;
+
+  char *pVal;
+};
+
+static int test_leveldb_close(TestDb *pTestDb){
+  LevelDb *pDb = (LevelDb *)pTestDb;
+
+  leveldb_close(pDb->db);
+  leveldb_writeoptions_destroy(pDb->pWriteOpt);
+  leveldb_readoptions_destroy(pDb->pReadOpt);
+  leveldb_options_destroy(pDb->pOpt);
+  free(pDb->pVal);
+  free(pDb);
+
+  return 0;
+}
+
+static int test_leveldb_write(
+  TestDb *pTestDb, 
+  void *pKey, 
+  int nKey, 
+  void *pVal, 
+  int nVal
+){
+  LevelDb *pDb = (LevelDb *)pTestDb;
+  char *zErr = 0;
+  leveldb_put(pDb->db, pDb->pWriteOpt, pKey, nKey, pVal, nVal, &zErr);
+  return (zErr!=0);
+}
+
+static int test_leveldb_delete(TestDb *pTestDb, void *pKey, int nKey){
+  LevelDb *pDb = (LevelDb *)pTestDb;
+  char *zErr = 0;
+  leveldb_delete(pDb->db, pDb->pWriteOpt, pKey, nKey, &zErr);
+  return (zErr!=0);
+}
+
+static int test_leveldb_fetch(
+  TestDb *pTestDb, 
+  void *pKey, 
+  int nKey, 
+  void **ppVal, 
+  int *pnVal
+){
+  LevelDb *pDb = (LevelDb *)pTestDb;
+  char *zErr = 0;
+  size_t nVal = 0;
+
+  if( pKey==0 ) return 0;
+  free(pDb->pVal);
+  pDb->pVal = leveldb_get(pDb->db, pDb->pReadOpt, pKey, nKey, &nVal, &zErr);
+  *ppVal = (void *)(pDb->pVal);
+  if( pDb->pVal==0 ){
+    *pnVal = -1;
+  }else{
+    *pnVal = (int)nVal;
+  }
+
+  return (zErr!=0);
+}
+
+static int test_leveldb_scan(
+  TestDb *pTestDb,
+  void *pCtx,
+  int bReverse,
+  void *pKey1, int nKey1,         /* Start of search */
+  void *pKey2, int nKey2,         /* End of search */
+  void (*xCallback)(void *, void *, int , void *, int)
+){
+  LevelDb *pDb = (LevelDb *)pTestDb;
+  leveldb_iterator_t *iter;
+
+  iter = leveldb_create_iterator(pDb->db, pDb->pReadOpt);
+
+  if( bReverse==0 ){
+    if( pKey1 ){
+      leveldb_iter_seek(iter, pKey1, nKey1);
+    }else{
+      leveldb_iter_seek_to_first(iter);
+    }
+  }else{
+    if( pKey2 ){
+      leveldb_iter_seek(iter, pKey2, nKey2);
+
+      if( leveldb_iter_valid(iter)==0 ){
+        leveldb_iter_seek_to_last(iter);
+      }else{
+        const char *k; size_t n;
+        int res;
+        k = leveldb_iter_key(iter, &n);
+        res = memcmp(k, pKey2, MIN(n, nKey2));
+        if( res==0 ) res = n - nKey2;
+        assert( res>=0 );
+        if( res>0 ){
+          leveldb_iter_prev(iter);
+        }
+      }
+    }else{
+      leveldb_iter_seek_to_last(iter);
+    }
+  }
+
+
+  while( leveldb_iter_valid(iter) ){
+    const char *k; size_t n;
+    const char *v; size_t n2;
+    int res;
+
+    k = leveldb_iter_key(iter, &n);
+    if( bReverse==0 && pKey2 ){
+      res = memcmp(k, pKey2, MIN(n, nKey2));
+      if( res==0 ) res = n - nKey2;
+      if( res>0 ) break;
+    }
+    if( bReverse!=0 && pKey1 ){
+      res = memcmp(k, pKey1, MIN(n, nKey1));
+      if( res==0 ) res = n - nKey1;
+      if( res<0 ) break;
+    }
+
+    v = leveldb_iter_value(iter, &n2);
+
+    xCallback(pCtx, (void *)k, n, (void *)v, n2);
+
+    if( bReverse==0 ){
+      leveldb_iter_next(iter);
+    }else{
+      leveldb_iter_prev(iter);
+    }
+  }
+
+  leveldb_iter_destroy(iter);
+  return 0;
+}
+
+static int test_leveldb_open(
+  const char *zSpec, 
+  const char *zFilename, 
+  int bClear, 
+  TestDb **ppDb
+){
+  static const DatabaseMethods LeveldbMethods = {
+    test_leveldb_close,
+    test_leveldb_write,
+    test_leveldb_delete,
+    0,
+    test_leveldb_fetch,
+    test_leveldb_scan,
+    error_transaction_function,
+    error_transaction_function,
+    error_transaction_function
+  };
+
+  LevelDb *pLevelDb;
+  char *zErr = 0;
+
+  if( bClear ){
+    char *zCmd = sqlite3_mprintf("rm -rf %s\n", zFilename);
+    system(zCmd);
+    sqlite3_free(zCmd);
+  }
+
+  pLevelDb = (LevelDb *)malloc(sizeof(LevelDb));
+  memset(pLevelDb, 0, sizeof(LevelDb));
+
+  pLevelDb->pOpt = leveldb_options_create();
+  leveldb_options_set_create_if_missing(pLevelDb->pOpt, 1);
+  pLevelDb->pWriteOpt = leveldb_writeoptions_create();
+  pLevelDb->pReadOpt = leveldb_readoptions_create();
+
+  pLevelDb->db = leveldb_open(pLevelDb->pOpt, zFilename, &zErr);
+
+  if( zErr ){
+    test_leveldb_close((TestDb *)pLevelDb);
+    *ppDb = 0;
+    return 1;
+  }
+
+  *ppDb = (TestDb *)pLevelDb;
+  pLevelDb->base.pMethods = &LeveldbMethods;
+  return 0;
+}
+#endif  /* HAVE_LEVELDB */
+/* 
+** End wrapper for LevelDB.
+*************************************************************************/
+
+#ifdef HAVE_KYOTOCABINET
+static int kc_close(TestDb *pTestDb){
+  return test_kc_close(pTestDb);
+}
+
+static int kc_write(
+  TestDb *pTestDb, 
+  void *pKey, 
+  int nKey, 
+  void *pVal, 
+  int nVal
+){
+  return test_kc_write(pTestDb, pKey, nKey, pVal, nVal);
+}
+
+static int kc_delete(TestDb *pTestDb, void *pKey, int nKey){
+  return test_kc_delete(pTestDb, pKey, nKey);
+}
+
+static int kc_delete_range(
+  TestDb *pTestDb, 
+  void *pKey1, int nKey1,
+  void *pKey2, int nKey2
+){
+  return test_kc_delete_range(pTestDb, pKey1, nKey1, pKey2, nKey2);
+}
+
+static int kc_fetch(
+  TestDb *pTestDb, 
+  void *pKey, 
+  int nKey, 
+  void **ppVal, 
+  int *pnVal
+){
+  if( pKey==0 ) return LSM_OK;
+  return test_kc_fetch(pTestDb, pKey, nKey, ppVal, pnVal);
+}
+
+static int kc_scan(
+  TestDb *pTestDb,
+  void *pCtx,
+  int bReverse,
+  void *pFirst, int nFirst,
+  void *pLast, int nLast,
+  void (*xCallback)(void *, void *, int , void *, int)
+){
+  return test_kc_scan(
+      pTestDb, pCtx, bReverse, pFirst, nFirst, pLast, nLast, xCallback
+  );
+}
+
+static int kc_open(
+  const char *zSpec, 
+  const char *zFilename, 
+  int bClear, 
+  TestDb **ppDb
+){
+  static const DatabaseMethods KcdbMethods = {
+    kc_close,
+    kc_write,
+    kc_delete,
+    kc_delete_range,
+    kc_fetch,
+    kc_scan,
+    error_transaction_function,
+    error_transaction_function,
+    error_transaction_function
+  };
+
+  int rc;
+  TestDb *pTestDb = 0;
+
+  rc = test_kc_open(zFilename, bClear, &pTestDb);
+  if( rc!=0 ){
+    *ppDb = 0;
+    return rc;
+  }
+  pTestDb->pMethods = &KcdbMethods;
+  *ppDb = pTestDb;
+  return 0;
+}
+#endif /* HAVE_KYOTOCABINET */
+/* 
+** End wrapper for Kyoto cabinet.
+*************************************************************************/
+
+#ifdef HAVE_MDB
+static int mdb_close(TestDb *pTestDb){
+  return test_mdb_close(pTestDb);
+}
+
+static int mdb_write(
+  TestDb *pTestDb, 
+  void *pKey, 
+  int nKey, 
+  void *pVal, 
+  int nVal
+){
+  return test_mdb_write(pTestDb, pKey, nKey, pVal, nVal);
+}
+
+static int mdb_delete(TestDb *pTestDb, void *pKey, int nKey){
+  return test_mdb_delete(pTestDb, pKey, nKey);
+}
+
+static int mdb_fetch(
+  TestDb *pTestDb, 
+  void *pKey, 
+  int nKey, 
+  void **ppVal, 
+  int *pnVal
+){
+  if( pKey==0 ) return LSM_OK;
+  return test_mdb_fetch(pTestDb, pKey, nKey, ppVal, pnVal);
+}
+
+static int mdb_scan(
+  TestDb *pTestDb,
+  void *pCtx,
+  int bReverse,
+  void *pFirst, int nFirst,
+  void *pLast, int nLast,
+  void (*xCallback)(void *, void *, int , void *, int)
+){
+  return test_mdb_scan(
+      pTestDb, pCtx, bReverse, pFirst, nFirst, pLast, nLast, xCallback
+  );
+}
+
+static int mdb_open(
+  const char *zSpec, 
+  const char *zFilename, 
+  int bClear, 
+  TestDb **ppDb
+){
+  static const DatabaseMethods KcdbMethods = {
+    mdb_close,
+    mdb_write,
+    mdb_delete,
+    0,
+    mdb_fetch,
+    mdb_scan,
+    error_transaction_function,
+    error_transaction_function,
+    error_transaction_function
+  };
+
+  int rc;
+  TestDb *pTestDb = 0;
+
+  rc = test_mdb_open(zSpec, zFilename, bClear, &pTestDb);
+  if( rc!=0 ){
+    *ppDb = 0;
+    return rc;
+  }
+  pTestDb->pMethods = &KcdbMethods;
+  *ppDb = pTestDb;
+  return 0;
+}
+#endif /* HAVE_MDB */
+
+/*************************************************************************
+** Begin wrapper for SQLite.
+*/
+
+/*
+** nOpenTrans:
+**   The number of open nested transactions, in the same sense as used
+**   by the tdb_begin/commit/rollback and SQLite 4 KV interfaces. If this
+**   value is 0, there are no transactions open at all. If it is 1, then
+**   there is a read transaction. If it is 2 or greater, then there are
+**   (nOpenTrans-1) nested write transactions open.
+*/
+struct SqlDb {
+  TestDb base;
+  sqlite3 *db;
+  sqlite3_stmt *pInsert;
+  sqlite3_stmt *pDelete;
+  sqlite3_stmt *pDeleteRange;
+  sqlite3_stmt *pFetch;
+  sqlite3_stmt *apScan[8];
+
+  int nOpenTrans;
+
+  /* Used by sql_fetch() to allocate space for results */
+  int nAlloc;
+  u8 *aAlloc;
+};
+
+static int sql_close(TestDb *pTestDb){
+  SqlDb *pDb = (SqlDb *)pTestDb;
+  sqlite3_finalize(pDb->pInsert);
+  sqlite3_finalize(pDb->pDelete);
+  sqlite3_finalize(pDb->pDeleteRange);
+  sqlite3_finalize(pDb->pFetch);
+  sqlite3_finalize(pDb->apScan[0]);
+  sqlite3_finalize(pDb->apScan[1]);
+  sqlite3_finalize(pDb->apScan[2]);
+  sqlite3_finalize(pDb->apScan[3]);
+  sqlite3_finalize(pDb->apScan[4]);
+  sqlite3_finalize(pDb->apScan[5]);
+  sqlite3_finalize(pDb->apScan[6]);
+  sqlite3_finalize(pDb->apScan[7]);
+  sqlite3_close(pDb->db);
+  free((char *)pDb->aAlloc);
+  free((char *)pDb);
+  return SQLITE_OK;
+}
+
+static int sql_write(
+  TestDb *pTestDb, 
+  void *pKey, 
+  int nKey, 
+  void *pVal, 
+  int nVal
+){
+  SqlDb *pDb = (SqlDb *)pTestDb;
+  sqlite3_bind_blob(pDb->pInsert, 1, pKey, nKey, SQLITE_STATIC);
+  sqlite3_bind_blob(pDb->pInsert, 2, pVal, nVal, SQLITE_STATIC);
+  sqlite3_step(pDb->pInsert);
+  return sqlite3_reset(pDb->pInsert);
+}
+
+static int sql_delete(TestDb *pTestDb, void *pKey, int nKey){
+  SqlDb *pDb = (SqlDb *)pTestDb;
+  sqlite3_bind_blob(pDb->pDelete, 1, pKey, nKey, SQLITE_STATIC);
+  sqlite3_step(pDb->pDelete);
+  return sqlite3_reset(pDb->pDelete);
+}
+
+static int sql_delete_range(
+  TestDb *pTestDb, 
+  void *pKey1, int nKey1,
+  void *pKey2, int nKey2
+){
+  SqlDb *pDb = (SqlDb *)pTestDb;
+  sqlite3_bind_blob(pDb->pDeleteRange, 1, pKey1, nKey1, SQLITE_STATIC);
+  sqlite3_bind_blob(pDb->pDeleteRange, 2, pKey2, nKey2, SQLITE_STATIC);
+  sqlite3_step(pDb->pDeleteRange);
+  return sqlite3_reset(pDb->pDeleteRange);
+}
+
+static int sql_fetch(
+  TestDb *pTestDb, 
+  void *pKey, 
+  int nKey, 
+  void **ppVal, 
+  int *pnVal
+){
+  SqlDb *pDb = (SqlDb *)pTestDb;
+  int rc;
+
+  sqlite3_reset(pDb->pFetch);
+  if( pKey==0 ){
+    assert( ppVal==0 );
+    assert( pnVal==0 );
+    return LSM_OK;
+  }
+
+  sqlite3_bind_blob(pDb->pFetch, 1, pKey, nKey, SQLITE_STATIC);
+  rc = sqlite3_step(pDb->pFetch);
+  if( rc==SQLITE_ROW ){
+    int nVal = sqlite3_column_bytes(pDb->pFetch, 0);
+    u8 *aVal = (void *)sqlite3_column_blob(pDb->pFetch, 0);
+
+    if( nVal>pDb->nAlloc ){
+      free(pDb->aAlloc);
+      pDb->aAlloc = (u8 *)malloc(nVal*2);
+      pDb->nAlloc = nVal*2;
+    }
+    memcpy(pDb->aAlloc, aVal, nVal);
+    *pnVal = nVal;
+    *ppVal = (void *)pDb->aAlloc;
+  }else{
+    *pnVal = -1;
+    *ppVal = 0;
+  }
+
+  rc = sqlite3_reset(pDb->pFetch);
+  return rc;
+}
+
+static int sql_scan(
+  TestDb *pTestDb,
+  void *pCtx,
+  int bReverse,
+  void *pFirst, int nFirst,
+  void *pLast, int nLast,
+  void (*xCallback)(void *, void *, int , void *, int)
+){
+  SqlDb *pDb = (SqlDb *)pTestDb;
+  sqlite3_stmt *pScan;
+
+  assert( bReverse==1 || bReverse==0 );
+  pScan = pDb->apScan[(pFirst==0) + (pLast==0)*2 + bReverse*4];
+
+  if( pFirst ) sqlite3_bind_blob(pScan, 1, pFirst, nFirst, SQLITE_STATIC);
+  if( pLast ) sqlite3_bind_blob(pScan, 2, pLast, nLast, SQLITE_STATIC);
+
+  while( SQLITE_ROW==sqlite3_step(pScan) ){
+    void *pKey; int nKey;
+    void *pVal; int nVal;
+
+    nKey = sqlite3_column_bytes(pScan, 0);
+    pKey = (void *)sqlite3_column_blob(pScan, 0);
+    nVal = sqlite3_column_bytes(pScan, 1);
+    pVal = (void *)sqlite3_column_blob(pScan, 1);
+
+    xCallback(pCtx, pKey, nKey, pVal, nVal);
+  }
+  return sqlite3_reset(pScan);
+}
+
+static int sql_begin(TestDb *pTestDb, int iLevel){
+  int i;
+  SqlDb *pDb = (SqlDb *)pTestDb;
+
+  /* iLevel==0 is a no-op */
+  if( iLevel==0 ) return 0;
+
+  /* If there are no transactions at all open, open a read transaction. */
+  if( pDb->nOpenTrans==0 ){
+    int rc = sqlite3_exec(pDb->db, 
+        "BEGIN; SELECT * FROM sqlite_schema LIMIT 1;" , 0, 0, 0
+    );
+    if( rc!=0 ) return rc;
+    pDb->nOpenTrans = 1;
+  }
+
+  /* Open any required write transactions */
+  for(i=pDb->nOpenTrans; i<iLevel; i++){
+    char *zSql = sqlite3_mprintf("SAVEPOINT x%d", i);
+    int rc = sqlite3_exec(pDb->db, zSql, 0, 0, 0);
+    sqlite3_free(zSql);
+    if( rc!=SQLITE_OK ) return rc;
+  }
+
+  pDb->nOpenTrans = iLevel;
+  return 0;
+}
+
+static int sql_commit(TestDb *pTestDb, int iLevel){
+  SqlDb *pDb = (SqlDb *)pTestDb;
+  assert( iLevel>=0 );
+
+  /* Close the read transaction if requested. */
+  if( pDb->nOpenTrans>=1 && iLevel==0 ){
+    int rc = sqlite3_exec(pDb->db, "COMMIT", 0, 0, 0);
+    if( rc!=0 ) return rc;
+    pDb->nOpenTrans = 0;
+  }
+
+  /* Close write transactions as required */
+  if( pDb->nOpenTrans>iLevel ){
+    char *zSql = sqlite3_mprintf("RELEASE x%d", iLevel);
+    int rc = sqlite3_exec(pDb->db, zSql, 0, 0, 0);
+    sqlite3_free(zSql);
+    if( rc!=0 ) return rc;
+  }
+
+  pDb->nOpenTrans = iLevel;
+  return 0;
+}
+
+static int sql_rollback(TestDb *pTestDb, int iLevel){
+  SqlDb *pDb = (SqlDb *)pTestDb;
+  assert( iLevel>=0 );
+
+  if( pDb->nOpenTrans>=1 && iLevel==0 ){
+    /* Close the read transaction if requested. */
+    int rc = sqlite3_exec(pDb->db, "ROLLBACK", 0, 0, 0);
+    if( rc!=0 ) return rc;
+  }else if( pDb->nOpenTrans>1 && iLevel==1 ){
+    /* Or, rollback and close the top-level write transaction */
+    int rc = sqlite3_exec(pDb->db, "ROLLBACK TO x1; RELEASE x1;", 0, 0, 0);
+    if( rc!=0 ) return rc;
+  }else{
+    /* Or, just roll back some nested transactions */
+    char *zSql = sqlite3_mprintf("ROLLBACK TO x%d", iLevel-1);
+    int rc = sqlite3_exec(pDb->db, zSql, 0, 0, 0);
+    sqlite3_free(zSql);
+    if( rc!=0 ) return rc;
+  }
+
+  pDb->nOpenTrans = iLevel;
+  return 0;
+}
+
+static int sql_open(
+  const char *zSpec, 
+  const char *zFilename, 
+  int bClear, 
+  TestDb **ppDb
+){
+  static const DatabaseMethods SqlMethods = {
+    sql_close,
+    sql_write,
+    sql_delete,
+    sql_delete_range,
+    sql_fetch,
+    sql_scan,
+    sql_begin,
+    sql_commit,
+    sql_rollback
+  };
+  const char *zCreate = "CREATE TABLE IF NOT EXISTS t1(k PRIMARY KEY, v)";
+  const char *zInsert = "REPLACE INTO t1 VALUES(?, ?)";
+  const char *zDelete = "DELETE FROM t1 WHERE k = ?";
+  const char *zRange = "DELETE FROM t1 WHERE k>? AND k<?";
+  const char *zFetch  = "SELECT v FROM t1 WHERE k = ?";
+
+  const char *zScan0  = "SELECT * FROM t1 WHERE k BETWEEN ?1 AND ?2 ORDER BY k";
+  const char *zScan1  = "SELECT * FROM t1 WHERE k <= ?2 ORDER BY k";
+  const char *zScan2  = "SELECT * FROM t1 WHERE k >= ?1 ORDER BY k";
+  const char *zScan3  = "SELECT * FROM t1 ORDER BY k";
+
+  const char *zScan4  = 
+    "SELECT * FROM t1 WHERE k BETWEEN ?1 AND ?2 ORDER BY k DESC";
+  const char *zScan5  = "SELECT * FROM t1 WHERE k <= ?2 ORDER BY k DESC";
+  const char *zScan6  = "SELECT * FROM t1 WHERE k >= ?1 ORDER BY k DESC";
+  const char *zScan7  = "SELECT * FROM t1 ORDER BY k DESC";
+
+  int rc;
+  SqlDb *pDb;
+  char *zPragma;
+
+  if( bClear && zFilename && zFilename[0] ){
+    unlink(zFilename);
+  }
+
+  pDb = (SqlDb *)malloc(sizeof(SqlDb));
+  memset(pDb, 0, sizeof(SqlDb));
+  pDb->base.pMethods = &SqlMethods;
+
+  if( 0!=(rc = sqlite3_open(zFilename, &pDb->db))
+   || 0!=(rc = sqlite3_exec(pDb->db, zCreate, 0, 0, 0))
+   || 0!=(rc = sqlite3_prepare_v2(pDb->db, zInsert, -1, &pDb->pInsert, 0))
+   || 0!=(rc = sqlite3_prepare_v2(pDb->db, zDelete, -1, &pDb->pDelete, 0))
+   || 0!=(rc = sqlite3_prepare_v2(pDb->db, zRange, -1, &pDb->pDeleteRange, 0))
+   || 0!=(rc = sqlite3_prepare_v2(pDb->db, zFetch, -1, &pDb->pFetch, 0))
+   || 0!=(rc = sqlite3_prepare_v2(pDb->db, zScan0, -1, &pDb->apScan[0], 0))
+   || 0!=(rc = sqlite3_prepare_v2(pDb->db, zScan1, -1, &pDb->apScan[1], 0))
+   || 0!=(rc = sqlite3_prepare_v2(pDb->db, zScan2, -1, &pDb->apScan[2], 0))
+   || 0!=(rc = sqlite3_prepare_v2(pDb->db, zScan3, -1, &pDb->apScan[3], 0))
+   || 0!=(rc = sqlite3_prepare_v2(pDb->db, zScan4, -1, &pDb->apScan[4], 0))
+   || 0!=(rc = sqlite3_prepare_v2(pDb->db, zScan5, -1, &pDb->apScan[5], 0))
+   || 0!=(rc = sqlite3_prepare_v2(pDb->db, zScan6, -1, &pDb->apScan[6], 0))
+   || 0!=(rc = sqlite3_prepare_v2(pDb->db, zScan7, -1, &pDb->apScan[7], 0))
+  ){
+    *ppDb = 0;
+    sql_close((TestDb *)pDb);
+    return rc;
+  }
+
+  zPragma = sqlite3_mprintf("PRAGMA page_size=%d", TESTDB_DEFAULT_PAGE_SIZE);
+  sqlite3_exec(pDb->db, zPragma, 0, 0, 0);
+  sqlite3_free(zPragma);
+  zPragma = sqlite3_mprintf("PRAGMA cache_size=%d", TESTDB_DEFAULT_CACHE_SIZE);
+  sqlite3_exec(pDb->db, zPragma, 0, 0, 0);
+  sqlite3_free(zPragma);
+
+  /* sqlite3_exec(pDb->db, "PRAGMA locking_mode=EXCLUSIVE", 0, 0, 0); */
+  sqlite3_exec(pDb->db, "PRAGMA synchronous=OFF", 0, 0, 0);
+  sqlite3_exec(pDb->db, "PRAGMA journal_mode=WAL", 0, 0, 0);
+  sqlite3_exec(pDb->db, "PRAGMA wal_autocheckpoint=4096", 0, 0, 0);
+  if( zSpec ){
+    rc = sqlite3_exec(pDb->db, zSpec, 0, 0, 0);
+    if( rc!=SQLITE_OK ){
+      sql_close((TestDb *)pDb);
+      return rc;
+    }
+  }
+
+  *ppDb = (TestDb *)pDb;
+  return 0;
+}
+/* 
+** End wrapper for SQLite.
+*************************************************************************/
+
+/*************************************************************************
+** Begin exported functions.
+*/
+static struct Lib {
+  const char *zName;
+  const char *zDefaultDb;
+  int (*xOpen)(const char *, const char *zFilename, int bClear, TestDb **ppDb);
+} aLib[] = {
+  { "sqlite3",      "testdb.sqlite",    sql_open },
+  { "lsm_small",    "testdb.lsm_small", test_lsm_small_open },
+  { "lsm_lomem",    "testdb.lsm_lomem", test_lsm_lomem_open },
+  { "lsm_lomem2",   "testdb.lsm_lomem2", test_lsm_lomem2_open },
+#ifdef HAVE_ZLIB
+  { "lsm_zip",      "testdb.lsm_zip",   test_lsm_zip_open },
+#endif
+  { "lsm",          "testdb.lsm",       test_lsm_open },
+#ifdef LSM_MUTEX_PTHREADS
+  { "lsm_mt2",      "testdb.lsm_mt2",   test_lsm_mt2 },
+  { "lsm_mt3",      "testdb.lsm_mt3",   test_lsm_mt3 },
+#endif
+#ifdef HAVE_LEVELDB
+  { "leveldb",      "testdb.leveldb",   test_leveldb_open },
+#endif
+#ifdef HAVE_KYOTOCABINET
+  { "kyotocabinet", "testdb.kc",        kc_open },
+#endif
+#ifdef HAVE_MDB
+  { "mdb", "./testdb.mdb",        mdb_open }
+#endif
+};
+
+const char *tdb_system_name(int i){
+  if( i<0 || i>=ArraySize(aLib) ) return 0;
+  return aLib[i].zName;
+}
+
+const char *tdb_default_db(const char *zSys){
+  int i;
+  for(i=0; i<ArraySize(aLib); i++){
+    if( strcmp(aLib[i].zName, zSys)==0 ) return aLib[i].zDefaultDb;
+  }
+  return 0;
+}
+
+int tdb_open(const char *zLib, const char *zDb, int bClear, TestDb **ppDb){
+  int i;
+  int rc = 1;
+  const char *zSpec = 0;
+
+  int nLib = 0;
+  while( zLib[nLib] && zLib[nLib]!=' ' ){
+    nLib++;
+  }
+  zSpec = &zLib[nLib];
+  while( *zSpec==' ' ) zSpec++;
+  if( *zSpec=='\0' ) zSpec = 0;
+
+  for(i=0; i<ArraySize(aLib); i++){
+    if( (int)strlen(aLib[i].zName)==nLib
+        && 0==memcmp(zLib, aLib[i].zName, nLib) ){
+      rc = aLib[i].xOpen(zSpec, (zDb ? zDb : aLib[i].zDefaultDb), bClear, ppDb);
+      if( rc==0 ){
+        (*ppDb)->zLibrary = aLib[i].zName;
+      }
+      break;
+    }
+  }
+
+  if( rc ){
+    /* Failed to find the requested database library. Return an error. */
+    *ppDb = 0;
+  }
+  return rc;
+}
+
+int tdb_close(TestDb *pDb){
+  if( pDb ){
+    return pDb->pMethods->xClose(pDb);
+  }
+  return 0;
+}
+
+int tdb_write(TestDb *pDb, void *pKey, int nKey, void *pVal, int nVal){
+  return pDb->pMethods->xWrite(pDb, pKey, nKey, pVal, nVal);
+}
+
+int tdb_delete(TestDb *pDb, void *pKey, int nKey){
+  return pDb->pMethods->xDelete(pDb, pKey, nKey);
+}
+
+int tdb_delete_range(
+    TestDb *pDb, void *pKey1, int nKey1, void *pKey2, int nKey2
+){
+  return pDb->pMethods->xDeleteRange(pDb, pKey1, nKey1, pKey2, nKey2);
+}
+
+int tdb_fetch(TestDb *pDb, void *pKey, int nKey, void **ppVal, int *pnVal){
+  return pDb->pMethods->xFetch(pDb, pKey, nKey, ppVal, pnVal);
+}
+
+int tdb_scan(
+  TestDb *pDb,                    /* Database handle */
+  void *pCtx,                     /* Context pointer to pass to xCallback */
+  int bReverse,                   /* True to scan in reverse order */
+  void *pKey1, int nKey1,         /* Start of search */
+  void *pKey2, int nKey2,         /* End of search */
+  void (*xCallback)(void *pCtx, void *pKey, int nKey, void *pVal, int nVal)
+){
+  return pDb->pMethods->xScan(
+      pDb, pCtx, bReverse, pKey1, nKey1, pKey2, nKey2, xCallback
+  );
+}
+
+int tdb_begin(TestDb *pDb, int iLevel){
+  return pDb->pMethods->xBegin(pDb, iLevel);
+}
+int tdb_commit(TestDb *pDb, int iLevel){
+  return pDb->pMethods->xCommit(pDb, iLevel);
+}
+int tdb_rollback(TestDb *pDb, int iLevel){
+  return pDb->pMethods->xRollback(pDb, iLevel);
+}
+
+int tdb_transaction_support(TestDb *pDb){
+  return (pDb->pMethods->xBegin != error_transaction_function);
+}
+
+const char *tdb_library_name(TestDb *pDb){
+  return pDb->zLibrary;
+}
+
+/* 
+** End exported functions.
+*************************************************************************/
diff --git a/ext/lsm1/lsm-test/lsmtest_tdb.h b/ext/lsm1/lsm-test/lsmtest_tdb.h
new file mode 100644
index 0000000000000000000000000000000000000000..c55b6e2f802653a64bf43df1c2a23c801d8316f3
--- /dev/null
+++ b/ext/lsm1/lsm-test/lsmtest_tdb.h
@@ -0,0 +1,174 @@
+
+/*
+** This file is the interface to a very simple database library used for
+** testing. The interface is similar to that of the LSM. The main virtue 
+** of this library is that the same API may be used to access a key-value
+** store implemented by LSM, SQLite or another database system. Which 
+** makes it easy to use for correctness and performance tests.
+*/
+
+#ifndef __WRAPPER_H_
+#define __WRAPPER_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "lsm.h"
+
+typedef struct TestDb TestDb;
+
+/*
+** Open a new database connection. The first argument is the name of the
+** database library to use. e.g. something like:
+**
+**     "sqlite3"
+**     "lsm"
+**
+** See function tdb_system_name() for a list of available database systems.
+**
+** The second argument is the name of the database to open (e.g. a filename).
+**
+** If the third parameter is non-zero, then any existing database by the
+** name of zDb is removed before opening a new one. If it is zero, then an
+** existing database may be opened.
+*/
+int tdb_open(const char *zLibrary, const char *zDb, int bClear, TestDb **ppDb);
+
+/*
+** Close a database handle.
+*/
+int tdb_close(TestDb *pDb);
+
+/*
+** Write a new key/value into the database.
+*/
+int tdb_write(TestDb *pDb, void *pKey, int nKey, void *pVal, int nVal);
+
+/*
+** Delete a key from the database.
+*/
+int tdb_delete(TestDb *pDb, void *pKey, int nKey);
+
+/*
+** Delete a range of keys from the database.
+*/
+int tdb_delete_range(TestDb *, void *pKey1, int nKey1, void *pKey2, int nKey2);
+
+/*
+** Query the database for key (pKey/nKey). If no entry is found, set *ppVal
+** to 0 and *pnVal to -1 before returning. Otherwise, set *ppVal and *pnVal
+** to a pointer to and size of the value associated with (pKey/nKey).
+*/
+int tdb_fetch(TestDb *pDb, void *pKey, int nKey, void **ppVal, int *pnVal);
+
+/*
+** Open and close nested transactions. Currently, these functions only 
+** work for SQLite3 and LSM systems. Use the tdb_transaction_support() 
+** function to determine if a given TestDb handle supports these methods.
+**
+** These functions and the iLevel parameter follow the same conventions as
+** the SQLite 4 transaction interface. Note that this is slightly different
+** from the way LSM does things. As follows:
+**
+** tdb_begin():
+**   A successful call to tdb_begin() with (iLevel>1) guarantees that 
+**   there are at least (iLevel-1) write transactions open. If iLevel==1,
+**   then it guarantees that at least a read-transaction is open. Calling
+**   tdb_begin() with iLevel==0 is a no-op.
+**
+** tdb_commit():
+**   A successful call to tdb_commit() with (iLevel>1) guarantees that 
+**   there are at most (iLevel-1) write transactions open. If iLevel==1,
+**   then it guarantees that there are no write transactions open (although
+**   a read-transaction may remain open).  Calling tdb_commit() with 
+**   iLevel==0 ensures that all transactions, read or write, have been 
+**   closed and committed.
+**
+** tdb_rollback():
+**   This call is similar to tdb_commit(), except that instead of committing
+**   transactions, it reverts them. For example, calling tdb_rollback() with
+**   iLevel==2 ensures that there is at most one write transaction open, and
+**   restores the database to the state that it was in when that transaction
+**   was opened.
+**
+**   In other words, tdb_commit() just closes transactions - tdb_rollback()
+**   closes transactions and then restores the database to the state it
+**   was in before those transactions were even opened.
+*/
+int tdb_begin(TestDb *pDb, int iLevel);
+int tdb_commit(TestDb *pDb, int iLevel);
+int tdb_rollback(TestDb *pDb, int iLevel);
+
+/*
+** Return true if transactions are supported, or false otherwise.
+*/
+int tdb_transaction_support(TestDb *pDb);
+
+/*
+** Return the name of the database library (as passed to tdb_open()) used
+** by the handled passed as the first argument.
+*/
+const char *tdb_library_name(TestDb *pDb);
+
+/*
+** Scan a range of database keys. Invoke the callback function for each
+** key visited.
+*/
+int tdb_scan(
+  TestDb *pDb,                    /* Database handle */
+  void *pCtx,                     /* Context pointer to pass to xCallback */
+  int bReverse,                   /* True to scan in reverse order */
+  void *pKey1, int nKey1,         /* Start of search */
+  void *pKey2, int nKey2,         /* End of search */
+  void (*xCallback)(void *pCtx, void *pKey, int nKey, void *pVal, int nVal)
+);
+
+const char *tdb_system_name(int i);
+const char *tdb_default_db(const char *zSys);
+
+int tdb_lsm_open(const char *zCfg, const char *zDb, int bClear, TestDb **ppDb);
+
+/*
+** If the TestDb handle passed as an argument is a wrapper around an LSM
+** database, return the LSM handle. Otherwise, if the argument is some other
+** database system, return NULL.
+*/
+lsm_db *tdb_lsm(TestDb *pDb);
+
+/*
+** Return true if the db passed as an argument is a multi-threaded LSM
+** connection.
+*/
+int tdb_lsm_multithread(TestDb *pDb);
+
+/*
+** Return a pointer to the lsm_env object used by all lsm database
+** connections initialized as a copy of the object returned by 
+** lsm_default_env(). It may be modified (e.g. to override functions)
+** if the caller can guarantee that it is not already in use.
+*/
+lsm_env *tdb_lsm_env(void);
+
+/*
+** The following functions only work with LSM database handles. It is
+** illegal to call them with any other type of database handle specified
+** as an argument.
+*/
+void tdb_lsm_enable_log(TestDb *pDb, int bEnable);
+void tdb_lsm_application_crash(TestDb *pDb);
+void tdb_lsm_prepare_system_crash(TestDb *pDb);
+void tdb_lsm_system_crash(TestDb *pDb);
+void tdb_lsm_prepare_sync_crash(TestDb *pDb, int iSync);
+
+
+void tdb_lsm_safety(TestDb *pDb, int eMode);
+void tdb_lsm_config_work_hook(TestDb *pDb, void (*)(lsm_db *, void *), void *);
+void tdb_lsm_write_hook(TestDb *, void(*)(void*,int,lsm_i64,int,int), void*);
+int tdb_lsm_config_str(TestDb *pDb, const char *zStr);
+
+#ifdef __cplusplus
+}  /* End of the 'extern "C"' block */
+#endif
+
+#endif
diff --git a/ext/lsm1/lsm-test/lsmtest_tdb2.cc b/ext/lsm1/lsm-test/lsmtest_tdb2.cc
new file mode 100644
index 0000000000000000000000000000000000000000..86ebb49583ffb0dcfe7e60121906e7dbba8a9a01
--- /dev/null
+++ b/ext/lsm1/lsm-test/lsmtest_tdb2.cc
@@ -0,0 +1,369 @@
+
+
+#include "lsmtest.h"
+#include <stdlib.h>
+
+#ifdef HAVE_KYOTOCABINET
+#include "kcpolydb.h"
+extern "C" {
+  struct KcDb {
+    TestDb base;
+    kyotocabinet::TreeDB* db;
+    char *pVal;
+  };
+}
+
+int test_kc_open(const char *zFilename, int bClear, TestDb **ppDb){
+  KcDb *pKcDb;
+  int ok;
+  int rc = 0;
+
+  if( bClear ){
+    char *zCmd = sqlite3_mprintf("rm -rf %s\n", zFilename);
+    system(zCmd);
+    sqlite3_free(zCmd);
+  }
+
+  pKcDb = (KcDb *)malloc(sizeof(KcDb));
+  memset(pKcDb, 0, sizeof(KcDb));
+
+
+  pKcDb->db = new kyotocabinet::TreeDB();
+  pKcDb->db->tune_page(TESTDB_DEFAULT_PAGE_SIZE);
+  pKcDb->db->tune_page_cache(
+      TESTDB_DEFAULT_PAGE_SIZE * TESTDB_DEFAULT_CACHE_SIZE
+  );
+  ok = pKcDb->db->open(zFilename,
+      kyotocabinet::PolyDB::OWRITER | kyotocabinet::PolyDB::OCREATE
+  );
+  if( ok==0 ){
+    free(pKcDb);
+    pKcDb = 0;
+    rc = 1;
+  }
+
+  *ppDb = (TestDb *)pKcDb;
+  return rc;
+}
+
+int test_kc_close(TestDb *pDb){
+  KcDb *pKcDb = (KcDb *)pDb;
+  if( pKcDb->pVal ){
+    delete [] pKcDb->pVal;
+  }
+  pKcDb->db->close();
+  delete pKcDb->db;
+  free(pKcDb);
+  return 0;
+}
+
+int test_kc_write(TestDb *pDb, void *pKey, int nKey, void *pVal, int nVal){
+  KcDb *pKcDb = (KcDb *)pDb;
+  int ok;
+
+  ok = pKcDb->db->set((const char *)pKey, nKey, (const char *)pVal, nVal);
+  return (ok ? 0 : 1);
+}
+
+int test_kc_delete(TestDb *pDb, void *pKey, int nKey){
+  KcDb *pKcDb = (KcDb *)pDb;
+  int ok;
+
+  ok = pKcDb->db->remove((const char *)pKey, nKey);
+  return (ok ? 0 : 1);
+}
+
+int test_kc_delete_range(
+  TestDb *pDb, 
+  void *pKey1, int nKey1,
+  void *pKey2, int nKey2
+){
+  int res;
+  KcDb *pKcDb = (KcDb *)pDb;
+  kyotocabinet::DB::Cursor* pCur = pKcDb->db->cursor();
+
+  if( pKey1 ){
+    res = pCur->jump((const char *)pKey1, nKey1);
+  }else{
+    res = pCur->jump();
+  }
+
+  while( 1 ){
+    const char *pKey; size_t nKey;
+    const char *pVal; size_t nVal;
+
+    pKey = pCur->get(&nKey, &pVal, &nVal);
+    if( pKey==0 ) break;
+
+#ifndef NDEBUG
+    if( pKey1 ){
+      res = memcmp(pKey, pKey1, MIN((size_t)nKey1, nKey));
+      assert( res>0 || (res==0 && nKey>nKey1) );
+    }
+#endif
+
+    if( pKey2 ){
+      res = memcmp(pKey, pKey2, MIN((size_t)nKey2, nKey));
+      if( res>0 || (res==0 && (size_t)nKey2<nKey) ){
+        delete [] pKey;
+        break;
+      }
+    }
+    pCur->remove();
+    delete [] pKey;
+  }
+
+  delete pCur;
+  return 0;
+}
+
+int test_kc_fetch(
+  TestDb *pDb, 
+  void *pKey, 
+  int nKey, 
+  void **ppVal,
+  int *pnVal
+){
+  KcDb *pKcDb = (KcDb *)pDb;
+  size_t nVal;
+
+  if( pKcDb->pVal ){
+    delete [] pKcDb->pVal;
+    pKcDb->pVal = 0;
+  }
+
+  pKcDb->pVal = pKcDb->db->get((const char *)pKey, nKey, &nVal);
+  if( pKcDb->pVal ){
+    *ppVal = pKcDb->pVal;
+    *pnVal = nVal;
+  }else{
+    *ppVal = 0;
+    *pnVal = -1;
+  }
+
+  return 0;
+}
+
+int test_kc_scan(
+  TestDb *pDb,                    /* Database handle */
+  void *pCtx,                     /* Context pointer to pass to xCallback */
+  int bReverse,                   /* True for a reverse order scan */
+  void *pKey1, int nKey1,         /* Start of search */
+  void *pKey2, int nKey2,         /* End of search */
+  void (*xCallback)(void *pCtx, void *pKey, int nKey, void *pVal, int nVal)
+){
+  KcDb *pKcDb = (KcDb *)pDb;
+  kyotocabinet::DB::Cursor* pCur = pKcDb->db->cursor();
+  int res;
+
+  if( bReverse==0 ){
+    if( pKey1 ){
+      res = pCur->jump((const char *)pKey1, nKey1);
+    }else{
+      res = pCur->jump();
+    }
+  }else{
+    if( pKey2 ){
+      res = pCur->jump_back((const char *)pKey2, nKey2);
+    }else{
+      res = pCur->jump_back();
+    }
+  }
+
+  while( res ){
+    const char *pKey; size_t nKey;
+    const char *pVal; size_t nVal;
+    pKey = pCur->get(&nKey, &pVal, &nVal);
+
+    if( bReverse==0 && pKey2 ){
+      res = memcmp(pKey, pKey2, MIN((size_t)nKey2, nKey));
+      if( res>0 || (res==0 && (size_t)nKey2<nKey) ){
+        delete [] pKey;
+        break;
+      }
+    }else if( bReverse!=0 && pKey1 ){
+      res = memcmp(pKey, pKey1, MIN((size_t)nKey1, nKey));
+      if( res<0 || (res==0 && (size_t)nKey1>nKey) ){
+        delete [] pKey;
+        break;
+      }
+    }
+
+    xCallback(pCtx, (void *)pKey, (int)nKey, (void *)pVal, (int)nVal);
+    delete [] pKey;
+
+    if( bReverse ){
+      res = pCur->step_back();
+    }else{
+      res = pCur->step();
+    }
+  }
+
+  delete pCur;
+  return 0;
+}
+#endif /* HAVE_KYOTOCABINET */
+
+#ifdef HAVE_MDB 
+#include "lmdb.h"
+
+extern "C" {
+  struct MdbDb {
+    TestDb base;
+    MDB_env *env;
+    MDB_dbi dbi;
+  };
+}
+
+int test_mdb_open(
+  const char *zSpec, 
+  const char *zFilename, 
+  int bClear, 
+  TestDb **ppDb
+){
+  MDB_txn *txn;
+  MdbDb *pMdb;
+  int rc;
+
+  if( bClear ){
+    char *zCmd = sqlite3_mprintf("rm -rf %s\n", zFilename);
+    system(zCmd);
+    sqlite3_free(zCmd);
+  }
+
+  pMdb = (MdbDb *)malloc(sizeof(MdbDb));
+  memset(pMdb, 0, sizeof(MdbDb));
+
+  rc = mdb_env_create(&pMdb->env);
+  if( rc==0 ) rc = mdb_env_set_mapsize(pMdb->env, 1*1024*1024*1024);
+  if( rc==0 ) rc = mdb_env_open(pMdb->env, zFilename, MDB_NOSYNC|MDB_NOSUBDIR, 0600);
+  if( rc==0 ) rc = mdb_txn_begin(pMdb->env, NULL, 0, &txn);
+  if( rc==0 ){
+    rc = mdb_open(txn, NULL, 0, &pMdb->dbi);
+    mdb_txn_commit(txn);
+  }
+
+  *ppDb = (TestDb *)pMdb;
+  return rc;
+}
+
+int test_mdb_close(TestDb *pDb){
+  MdbDb *pMdb = (MdbDb *)pDb;
+
+  mdb_close(pMdb->env, pMdb->dbi);
+  mdb_env_close(pMdb->env);
+  free(pMdb);
+  return 0;
+}
+
+int test_mdb_write(TestDb *pDb, void *pKey, int nKey, void *pVal, int nVal){
+  int rc;
+  MdbDb *pMdb = (MdbDb *)pDb;
+  MDB_val val;
+  MDB_val key;
+  MDB_txn *txn;
+
+  val.mv_size = nVal; 
+  val.mv_data = pVal;
+  key.mv_size = nKey; 
+  key.mv_data = pKey;
+
+  rc = mdb_txn_begin(pMdb->env, NULL, 0, &txn);
+  if( rc==0 ){
+    rc = mdb_put(txn, pMdb->dbi, &key, &val, 0);
+    if( rc==0 ){
+      rc = mdb_txn_commit(txn);
+    }else{
+      mdb_txn_abort(txn);
+    }
+  }
+  
+  return rc;
+}
+
+int test_mdb_delete(TestDb *pDb, void *pKey, int nKey){
+  int rc;
+  MdbDb *pMdb = (MdbDb *)pDb;
+  MDB_val key;
+  MDB_txn *txn;
+
+  key.mv_size = nKey; 
+  key.mv_data = pKey;
+  rc = mdb_txn_begin(pMdb->env, NULL, 0, &txn);
+  if( rc==0 ){
+    rc = mdb_del(txn, pMdb->dbi, &key, 0);
+    if( rc==0 ){
+      rc = mdb_txn_commit(txn);
+    }else{
+      mdb_txn_abort(txn);
+    }
+  }
+  
+  return rc;
+}
+
+int test_mdb_fetch(
+  TestDb *pDb, 
+  void *pKey, 
+  int nKey, 
+  void **ppVal,
+  int *pnVal
+){
+  int rc;
+  MdbDb *pMdb = (MdbDb *)pDb;
+  MDB_val key;
+  MDB_txn *txn;
+
+  key.mv_size = nKey;
+  key.mv_data = pKey;
+
+  rc = mdb_txn_begin(pMdb->env, NULL, MDB_RDONLY, &txn);
+  if( rc==0 ){
+    MDB_val val = {0, 0};
+    rc = mdb_get(txn, pMdb->dbi, &key, &val);
+    if( rc==MDB_NOTFOUND ){
+      rc = 0;
+      *ppVal = 0;
+      *pnVal = -1;
+    }else{
+      *ppVal = val.mv_data;
+      *pnVal = val.mv_size;
+    }
+    mdb_txn_commit(txn);
+  }
+
+  return rc;
+}
+
+int test_mdb_scan(
+  TestDb *pDb,                    /* Database handle */
+  void *pCtx,                     /* Context pointer to pass to xCallback */
+  int bReverse,                   /* True for a reverse order scan */
+  void *pKey1, int nKey1,         /* Start of search */
+  void *pKey2, int nKey2,         /* End of search */
+  void (*xCallback)(void *pCtx, void *pKey, int nKey, void *pVal, int nVal)
+){
+  MdbDb *pMdb = (MdbDb *)pDb;
+  int rc;
+  MDB_cursor_op op = bReverse ? MDB_PREV : MDB_NEXT;
+  MDB_txn *txn;
+
+  rc = mdb_txn_begin(pMdb->env, NULL, MDB_RDONLY, &txn);
+  if( rc==0 ){
+    MDB_cursor *csr;
+    MDB_val key = {0, 0};
+    MDB_val val = {0, 0};
+
+    rc = mdb_cursor_open(txn, pMdb->dbi, &csr);
+    if( rc==0 ){
+      while( mdb_cursor_get(csr, &key, &val, op)==0 ){
+        xCallback(pCtx, key.mv_data, key.mv_size, val.mv_data, val.mv_size);
+      }
+      mdb_cursor_close(csr);
+    }
+  }
+
+  return rc;
+}
+
+#endif /* HAVE_MDB */
diff --git a/ext/lsm1/lsm-test/lsmtest_tdb3.c b/ext/lsm1/lsm-test/lsmtest_tdb3.c
new file mode 100644
index 0000000000000000000000000000000000000000..e29497af204dc6078e44b975a20953203995d8b5
--- /dev/null
+++ b/ext/lsm1/lsm-test/lsmtest_tdb3.c
@@ -0,0 +1,1429 @@
+
+#include "lsmtest_tdb.h"
+#include "lsm.h"
+#include "lsmtest.h"
+
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#ifndef _WIN32
+# include <unistd.h>
+#endif
+#include <stdio.h>
+
+#ifndef _WIN32
+# include <sys/time.h>
+#endif
+
+typedef struct LsmDb LsmDb;
+typedef struct LsmWorker LsmWorker;
+typedef struct LsmFile LsmFile;
+
+#define LSMTEST_DFLT_MT_MAX_CKPT (8*1024)
+#define LSMTEST_DFLT_MT_MIN_CKPT (2*1024)
+
+#ifdef LSM_MUTEX_PTHREADS
+#include <pthread.h>
+
+#define LSMTEST_THREAD_CKPT      1
+#define LSMTEST_THREAD_WORKER    2
+#define LSMTEST_THREAD_WORKER_AC 3
+
+/*
+** There are several different types of worker threads that run in different
+** test configurations, depending on the value of LsmWorker.eType.
+**
+**   1. Checkpointer.
+**   2. Worker with auto-checkpoint.
+**   3. Worker without auto-checkpoint.
+*/
+struct LsmWorker {
+  LsmDb *pDb;                     /* Main database structure */
+  lsm_db *pWorker;                /* Worker database handle */
+  pthread_t worker_thread;        /* Worker thread */
+  pthread_cond_t worker_cond;     /* Condition var the worker waits on */
+  pthread_mutex_t worker_mutex;   /* Mutex used with worker_cond */
+  int bDoWork;                    /* Set to true by client when there is work */
+  int worker_rc;                  /* Store error code here */
+  int eType;                      /* LSMTEST_THREAD_XXX constant */
+  int bBlock;
+};
+#else
+struct LsmWorker { int worker_rc; int bBlock; };
+#endif
+
+static void mt_shutdown(LsmDb *);
+
+lsm_env *tdb_lsm_env(void){
+  static int bInit = 0;
+  static lsm_env env;
+  if( bInit==0 ){
+    memcpy(&env, lsm_default_env(), sizeof(env));
+    bInit = 1;
+  }
+  return &env;
+}
+
+typedef struct FileSector FileSector;
+typedef struct FileData FileData;
+
+struct FileSector {
+  u8 *aOld;                       /* Old data for this sector */
+};
+
+struct FileData {
+  int nSector;                    /* Allocated size of apSector[] array */
+  FileSector *aSector;            /* Array of file sectors */
+};
+
+/*
+** bPrepareCrash:
+**   If non-zero, the file wrappers maintain enough in-memory data to
+**   simulate the effect of a power-failure on the file-system (i.e. that
+**   unsynced sectors may be written, not written, or overwritten with
+**   arbitrary data when the crash occurs).
+**
+** bCrashed:
+**   Set to true after a crash is simulated. Once this variable is true, all
+**   VFS methods other than xClose() return LSM_IOERR as soon as they are
+**   called (without affecting the contents of the file-system).
+**
+** env:
+**   The environment object used by all lsm_db* handles opened by this
+**   object (i.e. LsmDb.db plus any worker connections). Variable env.pVfsCtx
+**   always points to the containing LsmDb structure.
+*/
+struct LsmDb {
+  TestDb base;                    /* Base class - methods table */
+  lsm_env env;                    /* Environment used by connection db */
+  char *zName;                    /* Database file name */
+  lsm_db *db;                     /* LSM database handle */
+
+  lsm_cursor *pCsr;               /* Cursor held open during read transaction */
+  void *pBuf;                     /* Buffer for tdb_fetch() output */
+  int nBuf;                       /* Allocated (not used) size of pBuf */
+
+  /* Crash testing related state */
+  int bCrashed;                   /* True once a crash has occurred */
+  int nAutoCrash;                 /* Number of syncs until a crash */
+  int bPrepareCrash;              /* True to store writes in memory */
+
+  /* Unsynced data (while crash testing) */
+  int szSector;                   /* Assumed size of disk sectors (512B) */
+  FileData aFile[2];              /* Database and log file data */
+
+  /* Other test instrumentation */
+  int bNoRecovery;                /* If true, assume DMS2 is locked */
+
+  /* Work hook redirection */
+  void (*xWork)(lsm_db *, void *);
+  void *pWorkCtx;
+
+  /* IO logging hook */
+  void (*xWriteHook)(void *, int, lsm_i64, int, int);
+  void *pWriteCtx;
+  
+  /* Worker threads (for lsm_mt) */
+  int nMtMinCkpt;
+  int nMtMaxCkpt;
+  int eMode;
+  int nWorker;
+  LsmWorker *aWorker;
+};
+
+#define LSMTEST_MODE_SINGLETHREAD    1
+#define LSMTEST_MODE_BACKGROUND_CKPT 2
+#define LSMTEST_MODE_BACKGROUND_WORK 3
+#define LSMTEST_MODE_BACKGROUND_BOTH 4
+
+/*************************************************************************
+**************************************************************************
+** Begin test VFS code.
+*/
+
+struct LsmFile {
+  lsm_file *pReal;                /* Real underlying file */
+  int bLog;                       /* True for log file. False for db file */
+  LsmDb *pDb;                     /* Database handle that uses this file */
+};
+
+static int testEnvFullpath(
+  lsm_env *pEnv,                  /* Environment for current LsmDb */
+  const char *zFile,              /* Relative path name */
+  char *zOut,                     /* Output buffer */
+  int *pnOut                      /* IN/OUT: Size of output buffer */
+){
+  lsm_env *pRealEnv = tdb_lsm_env();
+  return pRealEnv->xFullpath(pRealEnv, zFile, zOut, pnOut);
+}
+
+static int testEnvOpen(
+  lsm_env *pEnv,                  /* Environment for current LsmDb */
+  const char *zFile,              /* Name of file to open */
+  int flags,
+  lsm_file **ppFile               /* OUT: New file handle object */
+){
+  lsm_env *pRealEnv = tdb_lsm_env();
+  LsmDb *pDb = (LsmDb *)pEnv->pVfsCtx;
+  int rc;                         /* Return Code */
+  LsmFile *pRet;                  /* The new file handle */
+  int nFile;                      /* Length of string zFile in bytes */
+
+  nFile = strlen(zFile);
+  pRet = (LsmFile *)testMalloc(sizeof(LsmFile));
+  pRet->pDb = pDb;
+  pRet->bLog = (nFile > 4 && 0==memcmp("-log", &zFile[nFile-4], 4));
+
+  rc = pRealEnv->xOpen(pRealEnv, zFile, flags, &pRet->pReal);
+  if( rc!=LSM_OK ){
+    testFree(pRet);
+    pRet = 0;
+  }
+
+  *ppFile = (lsm_file *)pRet;
+  return rc;
+}
+
+static int testEnvRead(lsm_file *pFile, lsm_i64 iOff, void *pData, int nData){
+  lsm_env *pRealEnv = tdb_lsm_env();
+  LsmFile *p = (LsmFile *)pFile;
+  if( p->pDb->bCrashed ) return LSM_IOERR;
+  return pRealEnv->xRead(p->pReal, iOff, pData, nData);
+}
+
+static int testEnvWrite(lsm_file *pFile, lsm_i64 iOff, void *pData, int nData){
+  lsm_env *pRealEnv = tdb_lsm_env();
+  LsmFile *p = (LsmFile *)pFile;
+  LsmDb *pDb = p->pDb;
+
+  if( pDb->bCrashed ) return LSM_IOERR;
+
+  if( pDb->bPrepareCrash ){
+    FileData *pData2 = &pDb->aFile[p->bLog];
+    int iFirst;                 
+    int iLast;
+    int iSector;
+
+    iFirst = (int)(iOff / pDb->szSector);
+    iLast =  (int)((iOff + nData - 1) / pDb->szSector);
+
+    if( pData2->nSector<(iLast+1) ){
+      int nNew = ( ((iLast + 1) + 63) / 64 ) * 64;
+      assert( nNew>iLast );
+      pData2->aSector = (FileSector *)testRealloc(
+          pData2->aSector, nNew*sizeof(FileSector)
+      );
+      memset(&pData2->aSector[pData2->nSector], 
+          0, (nNew - pData2->nSector) * sizeof(FileSector)
+      );
+      pData2->nSector = nNew;
+    }
+
+    for(iSector=iFirst; iSector<=iLast; iSector++){
+      if( pData2->aSector[iSector].aOld==0 ){
+        u8 *aOld = (u8 *)testMalloc(pDb->szSector);
+        pRealEnv->xRead(
+            p->pReal, (lsm_i64)iSector*pDb->szSector, aOld, pDb->szSector
+        );
+        pData2->aSector[iSector].aOld = aOld;
+      }
+    }
+  }
+
+  if( pDb->xWriteHook ){
+    int rc;
+    int nUs;
+    struct timeval t1;
+    struct timeval t2;
+
+    gettimeofday(&t1, 0);
+    assert( nData>0 );
+    rc = pRealEnv->xWrite(p->pReal, iOff, pData, nData);
+    gettimeofday(&t2, 0);
+
+    nUs = (t2.tv_sec - t1.tv_sec) * 1000000 + (t2.tv_usec - t1.tv_usec);
+    pDb->xWriteHook(pDb->pWriteCtx, p->bLog, iOff, nData, nUs);
+    return rc;
+  }
+
+  return pRealEnv->xWrite(p->pReal, iOff, pData, nData);
+}
+
+static void doSystemCrash(LsmDb *pDb);
+
+static int testEnvSync(lsm_file *pFile){
+  lsm_env *pRealEnv = tdb_lsm_env();
+  LsmFile *p = (LsmFile *)pFile;
+  LsmDb *pDb = p->pDb;
+  FileData *pData = &pDb->aFile[p->bLog];
+  int i;
+
+  if( pDb->bCrashed ) return LSM_IOERR;
+
+  if( pDb->nAutoCrash ){
+    pDb->nAutoCrash--;
+    if( pDb->nAutoCrash==0 ){
+      doSystemCrash(pDb);
+      pDb->bCrashed = 1;
+      return LSM_IOERR;
+    }
+  }
+
+  if( pDb->bPrepareCrash ){
+    for(i=0; i<pData->nSector; i++){
+      testFree(pData->aSector[i].aOld);
+      pData->aSector[i].aOld = 0;
+    }
+  }
+
+  if( pDb->xWriteHook ){
+    int rc;
+    int nUs;
+    struct timeval t1;
+    struct timeval t2;
+
+    gettimeofday(&t1, 0);
+    rc = pRealEnv->xSync(p->pReal);
+    gettimeofday(&t2, 0);
+
+    nUs = (t2.tv_sec - t1.tv_sec) * 1000000 + (t2.tv_usec - t1.tv_usec);
+    pDb->xWriteHook(pDb->pWriteCtx, p->bLog, 0, 0, nUs);
+    return rc;
+  }
+
+  return pRealEnv->xSync(p->pReal);
+}
+
+static int testEnvTruncate(lsm_file *pFile, lsm_i64 iOff){
+  lsm_env *pRealEnv = tdb_lsm_env();
+  LsmFile *p = (LsmFile *)pFile;
+  if( p->pDb->bCrashed ) return LSM_IOERR;
+  return pRealEnv->xTruncate(p->pReal, iOff);
+}
+
+static int testEnvSectorSize(lsm_file *pFile){
+  lsm_env *pRealEnv = tdb_lsm_env();
+  LsmFile *p = (LsmFile *)pFile;
+  return pRealEnv->xSectorSize(p->pReal);
+}
+
+static int testEnvRemap(
+  lsm_file *pFile, 
+  lsm_i64 iMin, 
+  void **ppOut,
+  lsm_i64 *pnOut
+){
+  lsm_env *pRealEnv = tdb_lsm_env();
+  LsmFile *p = (LsmFile *)pFile;
+  return pRealEnv->xRemap(p->pReal, iMin, ppOut, pnOut);
+}
+
+static int testEnvFileid(
+  lsm_file *pFile, 
+  void *ppOut,
+  int *pnOut
+){
+  lsm_env *pRealEnv = tdb_lsm_env();
+  LsmFile *p = (LsmFile *)pFile;
+  return pRealEnv->xFileid(p->pReal, ppOut, pnOut);
+}
+
+static int testEnvClose(lsm_file *pFile){
+  lsm_env *pRealEnv = tdb_lsm_env();
+  LsmFile *p = (LsmFile *)pFile;
+
+  pRealEnv->xClose(p->pReal);
+  testFree(p);
+  return LSM_OK;
+}
+
+static int testEnvUnlink(lsm_env *pEnv, const char *zFile){
+  lsm_env *pRealEnv = tdb_lsm_env();
+  unused_parameter(pEnv);
+  return pRealEnv->xUnlink(pRealEnv, zFile);
+}
+
+static int testEnvLock(lsm_file *pFile, int iLock, int eType){
+  LsmFile *p = (LsmFile *)pFile;
+  lsm_env *pRealEnv = tdb_lsm_env();
+
+  if( iLock==2 && eType==LSM_LOCK_EXCL && p->pDb->bNoRecovery ){
+    return LSM_BUSY;
+  }
+  return pRealEnv->xLock(p->pReal, iLock, eType);
+}
+
+static int testEnvTestLock(lsm_file *pFile, int iLock, int nLock, int eType){
+  LsmFile *p = (LsmFile *)pFile;
+  lsm_env *pRealEnv = tdb_lsm_env();
+
+  if( iLock==2 && eType==LSM_LOCK_EXCL && p->pDb->bNoRecovery ){
+    return LSM_BUSY;
+  }
+  return pRealEnv->xTestLock(p->pReal, iLock, nLock, eType);
+}
+
+static int testEnvShmMap(lsm_file *pFile, int iRegion, int sz, void **pp){
+  LsmFile *p = (LsmFile *)pFile;
+  lsm_env *pRealEnv = tdb_lsm_env();
+  return pRealEnv->xShmMap(p->pReal, iRegion, sz, pp);
+}
+
+static void testEnvShmBarrier(void){
+}
+
+static int testEnvShmUnmap(lsm_file *pFile, int bDel){
+  LsmFile *p = (LsmFile *)pFile;
+  lsm_env *pRealEnv = tdb_lsm_env();
+  return pRealEnv->xShmUnmap(p->pReal, bDel);
+}
+
+static int testEnvSleep(lsm_env *pEnv, int us){
+  lsm_env *pRealEnv = tdb_lsm_env();
+  return pRealEnv->xSleep(pRealEnv, us);
+}
+
+static void doSystemCrash(LsmDb *pDb){
+  lsm_env *pEnv = tdb_lsm_env();
+  int iFile;
+  int iSeed = pDb->aFile[0].nSector + pDb->aFile[1].nSector;
+
+  char *zFile = pDb->zName;
+  char *zFree = 0;
+
+  for(iFile=0; iFile<2; iFile++){
+    lsm_file *pFile = 0;
+    int i;
+
+    pEnv->xOpen(pEnv, zFile, 0, &pFile);
+    for(i=0; i<pDb->aFile[iFile].nSector; i++){
+      u8 *aOld = pDb->aFile[iFile].aSector[i].aOld;
+      if( aOld ){
+        int iOpt = testPrngValue(iSeed++) % 3;
+        switch( iOpt ){
+          case 0:
+            break;
+
+          case 1:
+            testPrngArray(iSeed++, (u32 *)aOld, pDb->szSector/4);
+            /* Fall-through */
+
+          case 2:
+            pEnv->xWrite(
+                pFile, (lsm_i64)i * pDb->szSector, aOld, pDb->szSector
+            );
+            break;
+        }
+        testFree(aOld);
+        pDb->aFile[iFile].aSector[i].aOld = 0;
+      }
+    }
+    pEnv->xClose(pFile);
+    zFree = zFile = sqlite3_mprintf("%s-log", pDb->zName);
+  }
+
+  sqlite3_free(zFree);
+}
+/*
+** End test VFS code.
+**************************************************************************
+*************************************************************************/
+
+/*************************************************************************
+**************************************************************************
+** Begin test compression hooks.
+*/
+
+#ifdef HAVE_ZLIB
+#include <zlib.h>
+
+static int testZipBound(void *pCtx, int nSrc){
+  return compressBound(nSrc);
+}
+
+static int testZipCompress(
+  void *pCtx,                     /* Context pointer */
+  char *aOut, int *pnOut,         /* OUT: Buffer containing compressed data */
+  const char *aIn, int nIn        /* Buffer containing input data */
+){
+  uLongf n = *pnOut;              /* In/out buffer size for compress() */
+  int rc;                         /* compress() return code */
+ 
+  rc = compress((Bytef*)aOut, &n, (Bytef*)aIn, nIn);
+  *pnOut = n;
+  return (rc==Z_OK ? 0 : LSM_ERROR);
+}
+
+static int testZipUncompress(
+  void *pCtx,                     /* Context pointer */
+  char *aOut, int *pnOut,         /* OUT: Buffer containing uncompressed data */
+  const char *aIn, int nIn        /* Buffer containing input data */
+){
+  uLongf n = *pnOut;              /* In/out buffer size for uncompress() */
+  int rc;                         /* uncompress() return code */
+
+  rc = uncompress((Bytef*)aOut, &n, (Bytef*)aIn, nIn);
+  *pnOut = n;
+  return (rc==Z_OK ? 0 : LSM_ERROR);
+}
+
+static int testConfigureCompression(lsm_db *pDb){
+  static lsm_compress zip = {
+    0,                            /* Context pointer (unused) */
+    1,                            /* Id value */
+    testZipBound,                 /* xBound method */
+    testZipCompress,              /* xCompress method */
+    testZipUncompress             /* xUncompress method */
+  };
+  return lsm_config(pDb, LSM_CONFIG_SET_COMPRESSION, &zip);
+}
+#endif /* ifdef HAVE_ZLIB */
+
+/*
+** End test compression hooks.
+**************************************************************************
+*************************************************************************/
+
+static int test_lsm_close(TestDb *pTestDb){
+  int i;
+  int rc = LSM_OK;
+  LsmDb *pDb = (LsmDb *)pTestDb;
+
+  lsm_csr_close(pDb->pCsr);
+  lsm_close(pDb->db);
+
+  /* If this is a multi-threaded database, wait on the worker threads. */
+  mt_shutdown(pDb);
+  for(i=0; i<pDb->nWorker && rc==LSM_OK; i++){
+    rc = pDb->aWorker[i].worker_rc;
+  }
+
+  for(i=0; i<pDb->aFile[0].nSector; i++){
+    testFree(pDb->aFile[0].aSector[i].aOld);
+  }
+  testFree(pDb->aFile[0].aSector);
+  for(i=0; i<pDb->aFile[1].nSector; i++){
+    testFree(pDb->aFile[1].aSector[i].aOld);
+  }
+  testFree(pDb->aFile[1].aSector);
+
+  memset(pDb, sizeof(LsmDb), 0x11);
+  testFree((char *)pDb->pBuf);
+  testFree((char *)pDb);
+  return rc;
+}
+
+static void mt_signal_worker(LsmDb*, int);
+
+static int waitOnCheckpointer(LsmDb *pDb, lsm_db *db){
+  int nSleep = 0;
+  int nKB;
+  int rc;
+
+  do {
+    nKB = 0;
+    rc = lsm_info(db, LSM_INFO_CHECKPOINT_SIZE, &nKB);
+    if( rc!=LSM_OK || nKB<pDb->nMtMaxCkpt ) break;
+#ifdef LSM_MUTEX_PTHREADS
+    mt_signal_worker(pDb, 
+        (pDb->eMode==LSMTEST_MODE_BACKGROUND_CKPT ? 0 : 1)
+    );
+#endif
+    usleep(5000);
+    nSleep += 5;
+  }while( 1 );
+
+#if 0
+    if( nSleep ) printf("# waitOnCheckpointer(): nSleep=%d\n", nSleep);
+#endif
+
+  return rc;
+}
+
+static int waitOnWorker(LsmDb *pDb){
+  int rc;
+  int nLimit = -1;
+  int nSleep = 0;
+
+  rc = lsm_config(pDb->db, LSM_CONFIG_AUTOFLUSH, &nLimit);
+  do {
+    int nOld, nNew, rc2;
+    rc2 = lsm_info(pDb->db, LSM_INFO_TREE_SIZE, &nOld, &nNew);
+    if( rc2!=LSM_OK ) return rc2;
+    if( nOld==0 || nNew<(nLimit/2) ) break;
+#ifdef LSM_MUTEX_PTHREADS
+    mt_signal_worker(pDb, 0);
+#endif
+    usleep(5000);
+    nSleep += 5;
+  }while( 1 );
+
+#if 0
+  if( nSleep ) printf("# waitOnWorker(): nSleep=%d\n", nSleep);
+#endif
+
+  return rc;
+}
+
+static int test_lsm_write(
+  TestDb *pTestDb, 
+  void *pKey, 
+  int nKey, 
+  void *pVal,
+  int nVal
+){
+  LsmDb *pDb = (LsmDb *)pTestDb;
+  int rc = LSM_OK;
+
+  if( pDb->eMode==LSMTEST_MODE_BACKGROUND_CKPT ){
+    rc = waitOnCheckpointer(pDb, pDb->db);
+  }else if( 
+      pDb->eMode==LSMTEST_MODE_BACKGROUND_WORK
+   || pDb->eMode==LSMTEST_MODE_BACKGROUND_BOTH 
+  ){
+    rc = waitOnWorker(pDb);
+  }
+
+  if( rc==LSM_OK ){
+    rc = lsm_insert(pDb->db, pKey, nKey, pVal, nVal);
+  }
+  return rc;
+}
+
+static int test_lsm_delete(TestDb *pTestDb, void *pKey, int nKey){
+  LsmDb *pDb = (LsmDb *)pTestDb;
+  return lsm_delete(pDb->db, pKey, nKey);
+}
+
+static int test_lsm_delete_range(
+  TestDb *pTestDb, 
+  void *pKey1, int nKey1,
+  void *pKey2, int nKey2
+){
+  LsmDb *pDb = (LsmDb *)pTestDb;
+  return lsm_delete_range(pDb->db, pKey1, nKey1, pKey2, nKey2);
+}
+
+static int test_lsm_fetch(
+  TestDb *pTestDb, 
+  void *pKey, 
+  int nKey, 
+  void **ppVal, 
+  int *pnVal
+){
+  int rc;
+  LsmDb *pDb = (LsmDb *)pTestDb;
+  lsm_cursor *csr;
+
+  if( pKey==0 ) return LSM_OK;
+
+  if( pDb->pCsr==0 ){
+    rc = lsm_csr_open(pDb->db, &csr);
+    if( rc!=LSM_OK ) return rc;
+  }else{
+    csr = pDb->pCsr;
+  }
+
+  rc = lsm_csr_seek(csr, pKey, nKey, LSM_SEEK_EQ);
+  if( rc==LSM_OK ){
+    if( lsm_csr_valid(csr) ){
+      const void *pVal; int nVal;
+      rc = lsm_csr_value(csr, &pVal, &nVal);
+      if( nVal>pDb->nBuf ){
+        testFree(pDb->pBuf);
+        pDb->pBuf = testMalloc(nVal*2);
+        pDb->nBuf = nVal*2;
+      }
+      memcpy(pDb->pBuf, pVal, nVal);
+      *ppVal = pDb->pBuf;
+      *pnVal = nVal;
+    }else{
+      *ppVal = 0;
+      *pnVal = -1;
+    }
+  }
+  if( pDb->pCsr==0 ){
+    lsm_csr_close(csr);
+  }
+  return rc;
+}
+
+static int test_lsm_scan(
+  TestDb *pTestDb,
+  void *pCtx,
+  int bReverse,
+  void *pFirst, int nFirst,
+  void *pLast, int nLast,
+  void (*xCallback)(void *, void *, int , void *, int)
+){
+  LsmDb *pDb = (LsmDb *)pTestDb;
+  lsm_cursor *csr;
+  lsm_cursor *csr2 = 0;
+  int rc;
+
+  if( pDb->pCsr==0 ){
+    rc = lsm_csr_open(pDb->db, &csr);
+    if( rc!=LSM_OK ) return rc;
+  }else{
+    rc = LSM_OK;
+    csr = pDb->pCsr;
+  }
+
+  /* To enhance testing, if both pLast and pFirst are defined, seek the
+  ** cursor to the "end" boundary here. Then the next block seeks it to
+  ** the "start" ready for the scan. The point is to test that cursors
+  ** can be reused.  */
+  if( pLast && pFirst ){
+    if( bReverse ){
+      rc = lsm_csr_seek(csr, pFirst, nFirst, LSM_SEEK_LE);
+    }else{
+      rc = lsm_csr_seek(csr, pLast, nLast, LSM_SEEK_GE);
+    }
+  }
+
+  if( bReverse ){
+    if( pLast ){
+      rc = lsm_csr_seek(csr, pLast, nLast, LSM_SEEK_LE);
+    }else{
+      rc = lsm_csr_last(csr);
+    }
+  }else{
+    if( pFirst ){
+      rc = lsm_csr_seek(csr, pFirst, nFirst, LSM_SEEK_GE);
+    }else{
+      rc = lsm_csr_first(csr);
+    }
+  }
+
+  while( rc==LSM_OK && lsm_csr_valid(csr) ){
+    const void *pKey; int nKey;
+    const void *pVal; int nVal;
+    int cmp;
+
+    lsm_csr_key(csr, &pKey, &nKey);
+    lsm_csr_value(csr, &pVal, &nVal);
+
+    if( bReverse && pFirst ){
+      cmp = memcmp(pFirst, pKey, MIN(nKey, nFirst));
+      if( cmp>0 || (cmp==0 && nFirst>nKey) ) break;
+    }else if( bReverse==0 && pLast ){
+      cmp = memcmp(pLast, pKey, MIN(nKey, nLast));
+      if( cmp<0 || (cmp==0 && nLast<nKey) ) break;
+    }
+
+    xCallback(pCtx, (void *)pKey, nKey, (void *)pVal, nVal);
+
+    if( bReverse ){
+      rc = lsm_csr_prev(csr);
+    }else{
+      rc = lsm_csr_next(csr);
+    }
+  }
+
+  if( pDb->pCsr==0 ){
+    lsm_csr_close(csr);
+  }
+  return rc;
+}
+
+static int test_lsm_begin(TestDb *pTestDb, int iLevel){
+  int rc = LSM_OK;
+  LsmDb *pDb = (LsmDb *)pTestDb;
+
+  /* iLevel==0 is a no-op. */
+  if( iLevel==0 ) return 0;
+
+  if( pDb->pCsr==0 ) rc = lsm_csr_open(pDb->db, &pDb->pCsr);
+  if( rc==LSM_OK && iLevel>1 ){
+    rc = lsm_begin(pDb->db, iLevel-1);
+  }
+
+  return rc;
+}
+static int test_lsm_commit(TestDb *pTestDb, int iLevel){
+  LsmDb *pDb = (LsmDb *)pTestDb;
+
+  /* If iLevel==0, close any open read transaction */
+  if( iLevel==0 && pDb->pCsr ){
+    lsm_csr_close(pDb->pCsr);
+    pDb->pCsr = 0;
+  }
+
+  /* If iLevel==0, close any open read transaction */
+  return lsm_commit(pDb->db, MAX(0, iLevel-1));
+}
+static int test_lsm_rollback(TestDb *pTestDb, int iLevel){
+  LsmDb *pDb = (LsmDb *)pTestDb;
+
+  /* If iLevel==0, close any open read transaction */
+  if( iLevel==0 && pDb->pCsr ){
+    lsm_csr_close(pDb->pCsr);
+    pDb->pCsr = 0;
+  }
+
+  return lsm_rollback(pDb->db, MAX(0, iLevel-1));
+}
+
+/*
+** A log message callback registered with lsm connections. Prints all 
+** messages to stderr.
+*/
+static void xLog(void *pCtx, int rc, const char *z){
+  unused_parameter(rc);
+  /* fprintf(stderr, "lsm: rc=%d \"%s\"\n", rc, z); */
+  if( pCtx ) fprintf(stderr, "%s: ", (char *)pCtx);
+  fprintf(stderr, "%s\n", z);
+  fflush(stderr);
+}
+
+static void xWorkHook(lsm_db *db, void *pArg){
+  LsmDb *p = (LsmDb *)pArg;
+  if( p->xWork ) p->xWork(db, p->pWorkCtx);
+}
+
+#define TEST_NO_RECOVERY -1
+#define TEST_COMPRESSION -3
+
+#define TEST_MT_MODE     -2
+#define TEST_MT_MIN_CKPT -4
+#define TEST_MT_MAX_CKPT -5
+
+
+int test_lsm_config_str(
+  LsmDb *pLsm,
+  lsm_db *db, 
+  int bWorker,
+  const char *zStr,
+  int *pnThread
+){
+  struct CfgParam {
+    const char *zParam;
+    int bWorker;
+    int eParam;
+  } aParam[] = {
+    { "autoflush",        0, LSM_CONFIG_AUTOFLUSH },
+    { "page_size",        0, LSM_CONFIG_PAGE_SIZE },
+    { "block_size",       0, LSM_CONFIG_BLOCK_SIZE },
+    { "safety",           0, LSM_CONFIG_SAFETY },
+    { "autowork",         0, LSM_CONFIG_AUTOWORK },
+    { "autocheckpoint",   0, LSM_CONFIG_AUTOCHECKPOINT },
+    { "mmap",             0, LSM_CONFIG_MMAP },
+    { "use_log",          0, LSM_CONFIG_USE_LOG },
+    { "automerge",        0, LSM_CONFIG_AUTOMERGE },
+    { "max_freelist",     0, LSM_CONFIG_MAX_FREELIST },
+    { "multi_proc",       0, LSM_CONFIG_MULTIPLE_PROCESSES },
+    { "worker_automerge", 1, LSM_CONFIG_AUTOMERGE },
+    { "test_no_recovery", 0, TEST_NO_RECOVERY },
+    { "bg_min_ckpt",      0, TEST_NO_RECOVERY },
+
+    { "mt_mode",          0, TEST_MT_MODE },
+    { "mt_min_ckpt",      0, TEST_MT_MIN_CKPT },
+    { "mt_max_ckpt",      0, TEST_MT_MAX_CKPT },
+
+#ifdef HAVE_ZLIB
+    { "compression",      0, TEST_COMPRESSION },
+#endif
+    { 0, 0 }
+  };
+  const char *z = zStr;
+  int nThread = 1;
+
+  if( zStr==0 ) return 0;
+
+  assert( db );
+  while( z[0] ){
+    const char *zStart;
+
+    /* Skip whitespace */
+    while( *z==' ' ) z++;
+    zStart = z;
+
+    while( *z && *z!='=' ) z++;
+    if( *z ){
+      int eParam;
+      int i;
+      int iVal;
+      int iMul = 1;
+      int rc;
+      char zParam[32];
+      int nParam = z-zStart;
+      if( nParam==0 || nParam>sizeof(zParam)-1 ) goto syntax_error;
+
+      memcpy(zParam, zStart, nParam);
+      zParam[nParam] = '\0';
+      rc = testArgSelect(aParam, "param", zParam, &i);
+      if( rc!=0 ) return rc;
+      eParam = aParam[i].eParam;
+
+      z++;
+      zStart = z;
+      while( *z>='0' && *z<='9' ) z++;
+      if( *z=='k' || *z=='K' ){
+        iMul = 1;
+        z++;
+      }else if( *z=='M' || *z=='M' ){
+        iMul = 1024;
+        z++;
+      }
+      nParam = z-zStart;
+      if( nParam==0 || nParam>sizeof(zParam)-1 ) goto syntax_error;
+      memcpy(zParam, zStart, nParam);
+      zParam[nParam] = '\0';
+      iVal = atoi(zParam) * iMul;
+
+      if( eParam>0 ){
+        if( bWorker || aParam[i].bWorker==0 ){
+          lsm_config(db, eParam, &iVal);
+        }
+      }else{
+        switch( eParam ){
+          case TEST_NO_RECOVERY:
+            if( pLsm ) pLsm->bNoRecovery = iVal;
+            break;
+          case TEST_MT_MODE:
+            if( pLsm ) nThread = iVal;
+            break;
+          case TEST_MT_MIN_CKPT:
+            if( pLsm && iVal>0 ) pLsm->nMtMinCkpt = iVal*1024;
+            break;
+          case TEST_MT_MAX_CKPT:
+            if( pLsm && iVal>0 ) pLsm->nMtMaxCkpt = iVal*1024;
+            break;
+#ifdef HAVE_ZLIB
+          case TEST_COMPRESSION:
+            testConfigureCompression(db);
+            break;
+#endif
+        }
+      }
+    }else if( z!=zStart ){
+      goto syntax_error;
+    }
+  }
+
+  if( pnThread ) *pnThread = nThread;
+  if( pLsm && pLsm->nMtMaxCkpt < pLsm->nMtMinCkpt ){
+    pLsm->nMtMinCkpt = pLsm->nMtMaxCkpt;
+  }
+
+  return 0;
+ syntax_error:
+  testPrintError("syntax error at: \"%s\"\n", z);
+  return 1;
+}
+
+int tdb_lsm_config_str(TestDb *pDb, const char *zStr){
+  int rc = 0;
+  if( tdb_lsm(pDb) ){
+#ifdef LSM_MUTEX_PTHREADS
+    int i;
+#endif
+    LsmDb *pLsm = (LsmDb *)pDb;
+
+    rc = test_lsm_config_str(pLsm, pLsm->db, 0, zStr, 0);
+#ifdef LSM_MUTEX_PTHREADS
+    for(i=0; rc==0 && i<pLsm->nWorker; i++){
+      rc = test_lsm_config_str(0, pLsm->aWorker[i].pWorker, 1, zStr, 0);
+    }
+#endif
+  }
+  return rc;
+}
+
+int tdb_lsm_configure(lsm_db *db, const char *zConfig){
+  return test_lsm_config_str(0, db, 0, zConfig, 0);
+}
+
+static int testLsmStartWorkers(LsmDb *, int, const char *, const char *);
+
+static int testLsmOpen(
+  const char *zCfg,
+  const char *zFilename, 
+  int bClear, 
+  TestDb **ppDb
+){
+  static const DatabaseMethods LsmMethods = {
+    test_lsm_close,
+    test_lsm_write,
+    test_lsm_delete,
+    test_lsm_delete_range,
+    test_lsm_fetch,
+    test_lsm_scan,
+    test_lsm_begin,
+    test_lsm_commit,
+    test_lsm_rollback
+  };
+
+  int rc;
+  int nFilename;
+  LsmDb *pDb;
+
+  /* If the bClear flag is set, delete any existing database. */
+  assert( zFilename);
+  if( bClear ) testDeleteLsmdb(zFilename);
+  nFilename = strlen(zFilename);
+
+  pDb = (LsmDb *)testMalloc(sizeof(LsmDb) + nFilename + 1);
+  memset(pDb, 0, sizeof(LsmDb));
+  pDb->base.pMethods = &LsmMethods;
+  pDb->zName = (char *)&pDb[1];
+  memcpy(pDb->zName, zFilename, nFilename + 1);
+
+  /* Default the sector size used for crash simulation to 512 bytes. 
+  ** Todo: There should be an OS method to obtain this value - just as
+  ** there is in SQLite. For now, LSM assumes that it is smaller than
+  ** the page size (default 4KB).
+  */
+  pDb->szSector = 256;
+
+  /* Default values for the mt_min_ckpt and mt_max_ckpt parameters. */
+  pDb->nMtMinCkpt = LSMTEST_DFLT_MT_MIN_CKPT;
+  pDb->nMtMaxCkpt = LSMTEST_DFLT_MT_MAX_CKPT;
+
+  memcpy(&pDb->env, tdb_lsm_env(), sizeof(lsm_env));
+  pDb->env.pVfsCtx = (void *)pDb;
+  pDb->env.xFullpath = testEnvFullpath;
+  pDb->env.xOpen = testEnvOpen;
+  pDb->env.xRead = testEnvRead;
+  pDb->env.xWrite = testEnvWrite;
+  pDb->env.xTruncate = testEnvTruncate;
+  pDb->env.xSync = testEnvSync;
+  pDb->env.xSectorSize = testEnvSectorSize;
+  pDb->env.xRemap = testEnvRemap;
+  pDb->env.xFileid = testEnvFileid;
+  pDb->env.xClose = testEnvClose;
+  pDb->env.xUnlink = testEnvUnlink;
+  pDb->env.xLock = testEnvLock;
+  pDb->env.xTestLock = testEnvTestLock;
+  pDb->env.xShmBarrier = testEnvShmBarrier;
+  pDb->env.xShmMap = testEnvShmMap;
+  pDb->env.xShmUnmap = testEnvShmUnmap;
+  pDb->env.xSleep = testEnvSleep;
+
+  rc = lsm_new(&pDb->env, &pDb->db);
+  if( rc==LSM_OK ){
+    int nThread = 1;
+    lsm_config_log(pDb->db, xLog, 0);
+    lsm_config_work_hook(pDb->db, xWorkHook, (void *)pDb);
+
+    rc = test_lsm_config_str(pDb, pDb->db, 0, zCfg, &nThread);
+    if( rc==LSM_OK ) rc = lsm_open(pDb->db, zFilename);
+
+    pDb->eMode = nThread;
+#ifdef LSM_MUTEX_PTHREADS
+    if( rc==LSM_OK && nThread>1 ){
+      testLsmStartWorkers(pDb, nThread, zFilename, zCfg);
+    }
+#endif
+
+    if( rc!=LSM_OK ){
+      test_lsm_close((TestDb *)pDb);
+      pDb = 0;
+    }
+  }
+
+  *ppDb = (TestDb *)pDb;
+  return rc;
+}
+
+int test_lsm_open(
+  const char *zSpec, 
+  const char *zFilename, 
+  int bClear, 
+  TestDb **ppDb
+){
+  return testLsmOpen(zSpec, zFilename, bClear, ppDb);
+}
+
+int test_lsm_small_open(
+  const char *zSpec, 
+  const char *zFile, 
+  int bClear, 
+  TestDb **ppDb
+){
+  const char *zCfg = "page_size=256 block_size=64 mmap=1024";
+  return testLsmOpen(zCfg, zFile, bClear, ppDb);
+}
+
+int test_lsm_lomem_open(
+  const char *zSpec, 
+  const char *zFilename, 
+  int bClear, 
+  TestDb **ppDb
+){
+    /* "max_freelist=4 autocheckpoint=32" */
+  const char *zCfg = 
+    "page_size=256 block_size=64 autoflush=16 "
+    "autocheckpoint=32"
+    "mmap=0 "
+  ;
+  return testLsmOpen(zCfg, zFilename, bClear, ppDb);
+}
+
+int test_lsm_lomem2_open(
+  const char *zSpec, 
+  const char *zFilename, 
+  int bClear, 
+  TestDb **ppDb
+){
+    /* "max_freelist=4 autocheckpoint=32" */
+  const char *zCfg = 
+    "page_size=512 block_size=64 autoflush=0 mmap=0 "
+  ;
+  return testLsmOpen(zCfg, zFilename, bClear, ppDb);
+}
+
+int test_lsm_zip_open(
+  const char *zSpec, 
+  const char *zFilename, 
+  int bClear, 
+  TestDb **ppDb
+){
+  const char *zCfg = 
+    "page_size=256 block_size=64 autoflush=16 "
+    "autocheckpoint=32 compression=1 mmap=0 "
+  ;
+  return testLsmOpen(zCfg, zFilename, bClear, ppDb);
+}
+
+lsm_db *tdb_lsm(TestDb *pDb){
+  if( pDb->pMethods->xClose==test_lsm_close ){
+    return ((LsmDb *)pDb)->db;
+  }
+  return 0;
+}
+
+int tdb_lsm_multithread(TestDb *pDb){
+  int ret = 0;
+  if( tdb_lsm(pDb) ){
+    ret = ((LsmDb*)pDb)->eMode!=LSMTEST_MODE_SINGLETHREAD;
+  }
+  return ret;
+}
+
+void tdb_lsm_enable_log(TestDb *pDb, int bEnable){
+  lsm_db *db = tdb_lsm(pDb);
+  if( db ){
+    lsm_config_log(db, (bEnable ? xLog : 0), (void *)"client");
+  }
+}
+
+void tdb_lsm_application_crash(TestDb *pDb){
+  if( tdb_lsm(pDb) ){
+    LsmDb *p = (LsmDb *)pDb;
+    p->bCrashed = 1;
+  }
+}
+
+void tdb_lsm_prepare_system_crash(TestDb *pDb){
+  if( tdb_lsm(pDb) ){
+    LsmDb *p = (LsmDb *)pDb;
+    p->bPrepareCrash = 1;
+  }
+}
+
+void tdb_lsm_system_crash(TestDb *pDb){
+  if( tdb_lsm(pDb) ){
+    LsmDb *p = (LsmDb *)pDb;
+    p->bCrashed = 1;
+    doSystemCrash(p);
+  }
+}
+
+void tdb_lsm_safety(TestDb *pDb, int eMode){
+  assert( eMode==LSM_SAFETY_OFF 
+       || eMode==LSM_SAFETY_NORMAL 
+       || eMode==LSM_SAFETY_FULL 
+  );
+  if( tdb_lsm(pDb) ){
+    int iParam = eMode;
+    LsmDb *p = (LsmDb *)pDb;
+    lsm_config(p->db, LSM_CONFIG_SAFETY, &iParam);
+  }
+}
+
+void tdb_lsm_prepare_sync_crash(TestDb *pDb, int iSync){
+  assert( iSync>0 );
+  if( tdb_lsm(pDb) ){
+    LsmDb *p = (LsmDb *)pDb;
+    p->nAutoCrash = iSync;
+    p->bPrepareCrash = 1;
+  }
+}
+
+void tdb_lsm_config_work_hook(
+  TestDb *pDb, 
+  void (*xWork)(lsm_db *, void *), 
+  void *pWorkCtx
+){
+  if( tdb_lsm(pDb) ){
+    LsmDb *p = (LsmDb *)pDb;
+    p->xWork = xWork;
+    p->pWorkCtx = pWorkCtx;
+  }
+}
+
+void tdb_lsm_write_hook(
+  TestDb *pDb, 
+  void (*xWrite)(void *, int, lsm_i64, int, int),
+  void *pWriteCtx
+){
+  if( tdb_lsm(pDb) ){
+    LsmDb *p = (LsmDb *)pDb;
+    p->xWriteHook = xWrite;
+    p->pWriteCtx = pWriteCtx;
+  }
+}
+
+int tdb_lsm_open(const char *zCfg, const char *zDb, int bClear, TestDb **ppDb){
+  return testLsmOpen(zCfg, zDb, bClear, ppDb);
+}
+
+#ifdef LSM_MUTEX_PTHREADS
+
+/*
+** Signal worker thread iWorker that there may be work to do.
+*/
+static void mt_signal_worker(LsmDb *pDb, int iWorker){
+  LsmWorker *p = &pDb->aWorker[iWorker];
+  pthread_mutex_lock(&p->worker_mutex);
+  p->bDoWork = 1;
+  pthread_cond_signal(&p->worker_cond);
+  pthread_mutex_unlock(&p->worker_mutex);
+}
+
+/*
+** This routine is used as the main() for all worker threads.
+*/
+static void *worker_main(void *pArg){
+  LsmWorker *p = (LsmWorker *)pArg;
+  lsm_db *pWorker;                /* Connection to access db through */
+
+  pthread_mutex_lock(&p->worker_mutex);
+  while( (pWorker = p->pWorker) ){
+    int rc = LSM_OK;
+
+    /* Do some work. If an error occurs, exit. */
+
+    pthread_mutex_unlock(&p->worker_mutex);
+    if( p->eType==LSMTEST_THREAD_CKPT ){
+      int nKB = 0;
+      rc = lsm_info(pWorker, LSM_INFO_CHECKPOINT_SIZE, &nKB);
+      if( rc==LSM_OK && nKB>=p->pDb->nMtMinCkpt ){
+        rc = lsm_checkpoint(pWorker, 0);
+      }
+    }else{
+      int nWrite;
+      do {
+
+        if( p->eType==LSMTEST_THREAD_WORKER ){
+          waitOnCheckpointer(p->pDb, pWorker);
+        }
+
+        nWrite = 0;
+        rc = lsm_work(pWorker, 0, 256, &nWrite);
+
+        if( p->eType==LSMTEST_THREAD_WORKER && nWrite ){
+          mt_signal_worker(p->pDb, 1);
+        }
+      }while( nWrite && p->pWorker );
+    }
+    pthread_mutex_lock(&p->worker_mutex);
+
+    if( rc!=LSM_OK && rc!=LSM_BUSY ){
+      p->worker_rc = rc;
+      break;
+    }
+
+    /* The thread will wake up when it is signaled either because another
+    ** thread has created some work for this one or because the connection
+    ** is being closed.  */
+    if( p->pWorker && p->bDoWork==0 ){
+      pthread_cond_wait(&p->worker_cond, &p->worker_mutex);
+    }
+    p->bDoWork = 0;
+  }
+  pthread_mutex_unlock(&p->worker_mutex);
+  
+  return 0;
+}
+
+
+static void mt_stop_worker(LsmDb *pDb, int iWorker){
+  LsmWorker *p = &pDb->aWorker[iWorker];
+  if( p->pWorker ){
+    void *pDummy;
+    lsm_db *pWorker;
+
+    /* Signal the worker to stop */
+    pthread_mutex_lock(&p->worker_mutex);
+    pWorker = p->pWorker;
+    p->pWorker = 0;
+    pthread_cond_signal(&p->worker_cond);
+    pthread_mutex_unlock(&p->worker_mutex);
+
+    /* Join the worker thread. */
+    pthread_join(p->worker_thread, &pDummy);
+
+    /* Free resources allocated in mt_start_worker() */
+    pthread_cond_destroy(&p->worker_cond);
+    pthread_mutex_destroy(&p->worker_mutex);
+    lsm_close(pWorker);
+  }
+}
+
+static void mt_shutdown(LsmDb *pDb){
+  int i;
+  for(i=0; i<pDb->nWorker; i++){
+    mt_stop_worker(pDb, i);
+  }
+}
+
+/*
+** This callback is invoked by LSM when the client database writes to
+** the database file (i.e. to flush the contents of the in-memory tree).
+** This implies there may be work to do on the database, so signal
+** the worker threads.
+*/
+static void mt_client_work_hook(lsm_db *db, void *pArg){
+  LsmDb *pDb = (LsmDb *)pArg;     /* LsmDb database handle */
+
+  /* Invoke the user level work-hook, if any. */
+  if( pDb->xWork ) pDb->xWork(db, pDb->pWorkCtx);
+
+  /* Wake up worker thread 0. */
+  mt_signal_worker(pDb, 0);
+}
+
+static void mt_worker_work_hook(lsm_db *db, void *pArg){
+  LsmDb *pDb = (LsmDb *)pArg;     /* LsmDb database handle */
+
+  /* Invoke the user level work-hook, if any. */
+  if( pDb->xWork ) pDb->xWork(db, pDb->pWorkCtx);
+}
+
+/*
+** Launch worker thread iWorker for database connection pDb.
+*/
+static int mt_start_worker(
+  LsmDb *pDb,                     /* Main database structure */
+  int iWorker,                    /* Worker number to start */
+  const char *zFilename,          /* File name of database to open */
+  const char *zCfg,               /* Connection configuration string */
+  int eType                       /* Type of worker thread */
+){
+  int rc = 0;                     /* Return code */
+  LsmWorker *p;                   /* Object to initialize */
+
+  assert( iWorker<pDb->nWorker );
+  assert( eType==LSMTEST_THREAD_CKPT 
+       || eType==LSMTEST_THREAD_WORKER 
+       || eType==LSMTEST_THREAD_WORKER_AC 
+  );
+
+  p = &pDb->aWorker[iWorker];
+  p->eType = eType;
+  p->pDb = pDb;
+
+  /* Open the worker connection */
+  if( rc==0 ) rc = lsm_new(&pDb->env, &p->pWorker);
+  if( zCfg ){
+    test_lsm_config_str(pDb, p->pWorker, 1, zCfg, 0);
+  }
+  if( rc==0 ) rc = lsm_open(p->pWorker, zFilename);
+  lsm_config_log(p->pWorker, xLog, (void *)"worker");
+
+  /* Configure the work-hook */
+  if( rc==0 ){
+    lsm_config_work_hook(p->pWorker, mt_worker_work_hook, (void *)pDb);
+  }
+
+  if( eType==LSMTEST_THREAD_WORKER ){
+    test_lsm_config_str(0, p->pWorker, 1, "autocheckpoint=0", 0);
+  }
+
+  /* Kick off the worker thread. */
+  if( rc==0 ) rc = pthread_cond_init(&p->worker_cond, 0);
+  if( rc==0 ) rc = pthread_mutex_init(&p->worker_mutex, 0);
+  if( rc==0 ) rc = pthread_create(&p->worker_thread, 0, worker_main, (void *)p);
+
+  return rc;
+}
+
+
+static int testLsmStartWorkers(
+  LsmDb *pDb, int eModel, const char *zFilename, const char *zCfg
+){
+  int rc;
+
+  if( eModel<1 || eModel>4 ) return 1;
+  if( eModel==1 ) return 0;
+
+  /* Configure a work-hook for the client connection. Worker 0 is signalled
+  ** every time the users connection writes to the database.  */
+  lsm_config_work_hook(pDb->db, mt_client_work_hook, (void *)pDb);
+
+  /* Allocate space for two worker connections. They may not both be
+  ** used, but both are allocated.  */
+  pDb->aWorker = (LsmWorker *)testMalloc(sizeof(LsmWorker) * 2);
+  memset(pDb->aWorker, 0, sizeof(LsmWorker) * 2);
+
+  switch( eModel ){
+    case LSMTEST_MODE_BACKGROUND_CKPT:
+      pDb->nWorker = 1;
+      test_lsm_config_str(0, pDb->db, 0, "autocheckpoint=0", 0);
+      rc = mt_start_worker(pDb, 0, zFilename, zCfg, LSMTEST_THREAD_CKPT);
+      break;
+
+    case LSMTEST_MODE_BACKGROUND_WORK:
+      pDb->nWorker = 1;
+      test_lsm_config_str(0, pDb->db, 0, "autowork=0", 0);
+      rc = mt_start_worker(pDb, 0, zFilename, zCfg, LSMTEST_THREAD_WORKER_AC);
+      break;
+
+    case LSMTEST_MODE_BACKGROUND_BOTH:
+      pDb->nWorker = 2;
+      test_lsm_config_str(0, pDb->db, 0, "autowork=0", 0);
+      rc = mt_start_worker(pDb, 0, zFilename, zCfg, LSMTEST_THREAD_WORKER);
+      if( rc==0 ){
+        rc = mt_start_worker(pDb, 1, zFilename, zCfg, LSMTEST_THREAD_CKPT);
+      }
+      break;
+  }
+
+  return rc;
+}
+
+
+int test_lsm_mt2(
+  const char *zSpec, 
+  const char *zFilename, 
+  int bClear, 
+  TestDb **ppDb
+){
+  const char *zCfg = "mt_mode=2";
+  return testLsmOpen(zCfg, zFilename, bClear, ppDb);
+}
+
+int test_lsm_mt3(
+  const char *zSpec, 
+  const char *zFilename, 
+  int bClear, 
+  TestDb **ppDb
+){
+  const char *zCfg = "mt_mode=4";
+  return testLsmOpen(zCfg, zFilename, bClear, ppDb);
+}
+
+#else
+static void mt_shutdown(LsmDb *pDb) { 
+  unused_parameter(pDb); 
+}
+int test_lsm_mt(const char *zFilename, int bClear, TestDb **ppDb){
+  unused_parameter(zFilename);
+  unused_parameter(bClear);
+  unused_parameter(ppDb);
+  testPrintError("threads unavailable - recompile with LSM_MUTEX_PTHREADS\n");
+  return 1;
+}
+#endif
diff --git a/ext/lsm1/lsm-test/lsmtest_tdb4.c b/ext/lsm1/lsm-test/lsmtest_tdb4.c
new file mode 100644
index 0000000000000000000000000000000000000000..1f92928522d4c79f8575f993601e9e8621c06fb7
--- /dev/null
+++ b/ext/lsm1/lsm-test/lsmtest_tdb4.c
@@ -0,0 +1,980 @@
+
+/*
+** This file contains the TestDb bt wrapper.
+*/
+
+#include "lsmtest_tdb.h"
+#include "lsmtest.h"
+#include <unistd.h>
+#include "bt.h"
+
+#include <pthread.h>
+
+typedef struct BtDb BtDb;
+typedef struct BtFile BtFile;
+
+/* Background checkpointer interface (see implementations below). */
+typedef struct bt_ckpter bt_ckpter;
+static int bgc_attach(BtDb *pDb, const char*);
+static int bgc_detach(BtDb *pDb);
+
+/*
+** Each database or log file opened by a database handle is wrapped by
+** an object of the following type.
+*/
+struct BtFile {
+  BtDb *pBt;                      /* Database handle that opened this file */
+  bt_env *pVfs;                   /* Underlying VFS */
+  bt_file *pFile;                 /* File handle belonging to underlying VFS */
+  int nSectorSize;                /* Size of sectors in bytes */
+  int nSector;                    /* Allocated size of nSector array */
+  u8 **apSector;                  /* Original sector data */
+};
+
+/*
+** nCrashSync:
+**   If this value is non-zero, then a "crash-test" is running. If
+**   nCrashSync==1, then the crash is simulated during the very next 
+**   call to the xSync() VFS method (on either the db or log file).
+**   If nCrashSync==2, the following call to xSync(), and so on.
+**
+** bCrash:
+**   After a crash is simulated, this variable is set. Any subsequent
+**   attempts to write to a file or modify the file system in any way 
+**   fail once this is set. All the caller can do is close the connection.
+**
+** bFastInsert:
+**   If this variable is set to true, then a BT_CONTROL_FAST_INSERT_OP
+**   control is issued before each callto BtReplace() or BtCsrOpen().
+*/
+struct BtDb {
+  TestDb base;                    /* Base class */
+  bt_db *pBt;                     /* bt database handle */
+  sqlite4_env *pEnv;              /* SQLite environment (for malloc/free) */
+  bt_env *pVfs;                   /* Underlying VFS */
+  int bFastInsert;                /* True to use fast-insert */
+
+  /* Space for bt_fetch() results */
+  u8 *aBuffer;                    /* Space to store results */
+  int nBuffer;                    /* Allocated size of aBuffer[] in bytes */
+  int nRef;
+
+  /* Background checkpointer used by mt connections */
+  bt_ckpter *pCkpter;
+
+  /* Stuff used for crash test simulation */
+  BtFile *apFile[2];              /* Database and log files used by pBt */
+  bt_env env;                     /* Private VFS for this object */
+  int nCrashSync;                 /* Number of syncs until crash (see above) */
+  int bCrash;                     /* True once a crash has been simulated */
+};
+
+static int btVfsFullpath(
+  sqlite4_env *pEnv, 
+  bt_env *pVfs, 
+  const char *z, 
+  char **pzOut
+){
+  BtDb *pBt = (BtDb*)pVfs->pVfsCtx;
+  if( pBt->bCrash ) return SQLITE4_IOERR;
+  return pBt->pVfs->xFullpath(pEnv, pBt->pVfs, z, pzOut);
+}
+
+static int btVfsOpen(
+  sqlite4_env *pEnv, 
+  bt_env *pVfs, 
+  const char *zFile, 
+  int flags, bt_file **ppFile
+){
+  BtFile *p;
+  BtDb *pBt = (BtDb*)pVfs->pVfsCtx;
+  int rc;
+
+  if( pBt->bCrash ) return SQLITE4_IOERR;
+
+  p = (BtFile*)testMalloc(sizeof(BtFile));
+  if( !p ) return SQLITE4_NOMEM;
+  if( flags & BT_OPEN_DATABASE ){
+    pBt->apFile[0] = p;
+  }else if( flags & BT_OPEN_LOG ){
+    pBt->apFile[1] = p;
+  }
+  if( (flags & BT_OPEN_SHARED)==0 ){
+    p->pBt = pBt; 
+  }
+  p->pVfs = pBt->pVfs; 
+
+  rc = pBt->pVfs->xOpen(pEnv, pVfs, zFile, flags, &p->pFile);
+  if( rc!=SQLITE4_OK ){
+    testFree(p);
+    p = 0;
+  }else{
+    pBt->nRef++;
+  }
+
+  *ppFile = (bt_file*)p;
+  return rc;
+}
+
+static int btVfsSize(bt_file *pFile, sqlite4_int64 *piRes){
+  BtFile *p = (BtFile*)pFile;
+  if( p->pBt && p->pBt->bCrash ) return SQLITE4_IOERR;
+  return p->pVfs->xSize(p->pFile, piRes);
+}
+
+static int btVfsRead(bt_file *pFile, sqlite4_int64 iOff, void *pBuf, int nBuf){
+  BtFile *p = (BtFile*)pFile;
+  if( p->pBt && p->pBt->bCrash ) return SQLITE4_IOERR;
+  return p->pVfs->xRead(p->pFile, iOff, pBuf, nBuf);
+}
+
+static int btFlushSectors(BtFile *p, int iFile){
+  sqlite4_int64 iSz;
+  int rc;
+  int i;
+  u8 *aTmp = 0;
+
+  rc = p->pBt->pVfs->xSize(p->pFile, &iSz);
+  for(i=0; rc==SQLITE4_OK && i<p->nSector; i++){
+    if( p->pBt->bCrash && p->apSector[i] ){
+
+      /* The system is simulating a crash. There are three choices for
+      ** this sector:
+      **
+      **   1) Leave it as it is (simulating a successful write),
+      **   2) Restore the original data (simulating a lost write),
+      **   3) Populate the disk sector with garbage data.
+      */
+      sqlite4_int64 iSOff = p->nSectorSize*i;
+      int nWrite = MIN(p->nSectorSize, iSz - iSOff);
+
+      if( nWrite ){
+        u8 *aWrite = 0;
+        int iOpt = (testPrngValue(i) % 3) + 1;
+        if( iOpt==1 ){
+          aWrite = p->apSector[i];
+        }else if( iOpt==3 ){
+          if( aTmp==0 ) aTmp = testMalloc(p->nSectorSize);
+          aWrite = aTmp;
+          testPrngArray(i*13, (u32*)aWrite, nWrite/sizeof(u32));
+        }
+
+#if 0
+fprintf(stderr, "handle sector %d of %s with %s\n", i, 
+    iFile==0 ? "db" : "log",
+    iOpt==1 ? "rollback" : iOpt==2 ? "write" : "omit"
+);
+fflush(stderr);
+#endif
+
+        if( aWrite ){
+          rc = p->pBt->pVfs->xWrite(p->pFile, iSOff, aWrite, nWrite);
+        }
+      }
+    }
+    testFree(p->apSector[i]);
+    p->apSector[i] = 0;
+  }
+
+  testFree(aTmp);
+  return rc;
+}
+
+static int btSaveSectors(BtFile *p, sqlite4_int64 iOff, int nBuf){
+  int rc;
+  sqlite4_int64 iSz;              /* Size of file on disk */
+  int iFirst;                     /* First sector affected */
+  int iSector;                    /* Current sector */
+  int iLast;                      /* Last sector affected */
+
+  if( p->nSectorSize==0 ){
+    p->nSectorSize = p->pBt->pVfs->xSectorSize(p->pFile);
+    if( p->nSectorSize<512 ) p->nSectorSize = 512;
+  }
+  iLast = (iOff+nBuf-1) / p->nSectorSize;
+  iFirst = iOff / p->nSectorSize;
+
+  rc = p->pBt->pVfs->xSize(p->pFile, &iSz);
+  for(iSector=iFirst; rc==SQLITE4_OK && iSector<=iLast; iSector++){
+    int nRead;
+    sqlite4_int64 iSOff = iSector * p->nSectorSize;
+    u8 *aBuf = testMalloc(p->nSectorSize);
+    nRead = MIN(p->nSectorSize, (iSz - iSOff));
+    if( nRead>0 ){
+      rc = p->pBt->pVfs->xRead(p->pFile, iSOff, aBuf, nRead);
+    }
+
+    while( rc==SQLITE4_OK && iSector>=p->nSector ){
+      int nNew = p->nSector + 32;
+      u8 **apNew = (u8**)testMalloc(nNew * sizeof(u8*));
+      memcpy(apNew, p->apSector, p->nSector*sizeof(u8*));
+      testFree(p->apSector);
+      p->apSector = apNew;
+      p->nSector = nNew;
+    }
+
+    p->apSector[iSector] = aBuf;
+  }
+
+  return rc;
+}
+
+static int btVfsWrite(bt_file *pFile, sqlite4_int64 iOff, void *pBuf, int nBuf){
+  BtFile *p = (BtFile*)pFile;
+  if( p->pBt && p->pBt->bCrash ) return SQLITE4_IOERR;
+  if( p->pBt && p->pBt->nCrashSync ){
+    btSaveSectors(p, iOff, nBuf);
+  }
+  return p->pVfs->xWrite(p->pFile, iOff, pBuf, nBuf);
+}
+
+static int btVfsTruncate(bt_file *pFile, sqlite4_int64 iOff){
+  BtFile *p = (BtFile*)pFile;
+  if( p->pBt && p->pBt->bCrash ) return SQLITE4_IOERR;
+  return p->pVfs->xTruncate(p->pFile, iOff);
+}
+
+static int btVfsSync(bt_file *pFile){
+  int rc = SQLITE4_OK;
+  BtFile *p = (BtFile*)pFile;
+  BtDb *pBt = p->pBt;
+
+  if( pBt ){
+    if( pBt->bCrash ) return SQLITE4_IOERR;
+    if( pBt->nCrashSync ){
+      pBt->nCrashSync--;
+      pBt->bCrash = (pBt->nCrashSync==0);
+      if( pBt->bCrash ){
+        btFlushSectors(pBt->apFile[0], 0);
+        btFlushSectors(pBt->apFile[1], 1);
+        rc = SQLITE4_IOERR;
+      }else{
+        btFlushSectors(p, 0);
+      }
+    }
+  }
+
+  if( rc==SQLITE4_OK ){
+    rc = p->pVfs->xSync(p->pFile);
+  }
+  return rc;
+}
+
+static int btVfsSectorSize(bt_file *pFile){
+  BtFile *p = (BtFile*)pFile;
+  return p->pVfs->xSectorSize(p->pFile);
+}
+
+static void btDeref(BtDb *p){
+  p->nRef--;
+  assert( p->nRef>=0 );
+  if( p->nRef<=0 ) testFree(p);
+}
+
+static int btVfsClose(bt_file *pFile){
+  BtFile *p = (BtFile*)pFile;
+  BtDb *pBt = p->pBt;
+  int rc;
+  if( pBt ){
+    btFlushSectors(p, 0);
+    if( p==pBt->apFile[0] ) pBt->apFile[0] = 0;
+    if( p==pBt->apFile[1] ) pBt->apFile[1] = 0;
+  }
+  testFree(p->apSector);
+  rc = p->pVfs->xClose(p->pFile);
+#if 0
+  btDeref(p->pBt);
+#endif
+  testFree(p);
+  return rc;
+}
+
+static int btVfsUnlink(sqlite4_env *pEnv, bt_env *pVfs, const char *zFile){
+  BtDb *pBt = (BtDb*)pVfs->pVfsCtx;
+  if( pBt->bCrash ) return SQLITE4_IOERR;
+  return pBt->pVfs->xUnlink(pEnv, pBt->pVfs, zFile);
+}
+
+static int btVfsLock(bt_file *pFile, int iLock, int eType){
+  BtFile *p = (BtFile*)pFile;
+  if( p->pBt && p->pBt->bCrash ) return SQLITE4_IOERR;
+  return p->pVfs->xLock(p->pFile, iLock, eType);
+}
+
+static int btVfsTestLock(bt_file *pFile, int iLock, int nLock, int eType){
+  BtFile *p = (BtFile*)pFile;
+  if( p->pBt && p->pBt->bCrash ) return SQLITE4_IOERR;
+  return p->pVfs->xTestLock(p->pFile, iLock, nLock, eType);
+}
+
+static int btVfsShmMap(bt_file *pFile, int iChunk, int sz, void **ppOut){
+  BtFile *p = (BtFile*)pFile;
+  if( p->pBt && p->pBt->bCrash ) return SQLITE4_IOERR;
+  return p->pVfs->xShmMap(p->pFile, iChunk, sz, ppOut);
+}
+
+static void btVfsShmBarrier(bt_file *pFile){
+  BtFile *p = (BtFile*)pFile;
+  return p->pVfs->xShmBarrier(p->pFile);
+}
+
+static int btVfsShmUnmap(bt_file *pFile, int bDelete){
+  BtFile *p = (BtFile*)pFile;
+  if( p->pBt && p->pBt->bCrash ) return SQLITE4_IOERR;
+  return p->pVfs->xShmUnmap(p->pFile, bDelete);
+}
+
+static int bt_close(TestDb *pTestDb){
+  BtDb *p = (BtDb*)pTestDb;
+  int rc = sqlite4BtClose(p->pBt);
+  free(p->aBuffer);
+  if( p->apFile[0] ) p->apFile[0]->pBt = 0;
+  if( p->apFile[1] ) p->apFile[1]->pBt = 0;
+  bgc_detach(p);
+  testFree(p);
+  return rc;
+}
+
+static int btMinTransaction(BtDb *p, int iMin, int *piLevel){
+  int iLevel;
+  int rc = SQLITE4_OK;
+
+  iLevel = sqlite4BtTransactionLevel(p->pBt);
+  if( iLevel<iMin ){ 
+    rc = sqlite4BtBegin(p->pBt, iMin); 
+    *piLevel = iLevel;
+  }else{
+    *piLevel = -1;
+  }
+
+  return rc;
+}
+static int btRestoreTransaction(BtDb *p, int iLevel, int rcin){
+  int rc = rcin;
+  if( iLevel>=0 ){
+    if( rc==SQLITE4_OK ){
+      rc = sqlite4BtCommit(p->pBt, iLevel);
+    }else{
+      sqlite4BtRollback(p->pBt, iLevel);
+    }
+    assert( iLevel==sqlite4BtTransactionLevel(p->pBt) );
+  }
+  return rc;
+}
+
+static int bt_write(TestDb *pTestDb, void *pK, int nK, void *pV, int nV){
+  BtDb *p = (BtDb*)pTestDb;
+  int iLevel;
+  int rc;
+
+  rc = btMinTransaction(p, 2, &iLevel);
+  if( rc==SQLITE4_OK ){
+    if( p->bFastInsert ) sqlite4BtControl(p->pBt, BT_CONTROL_FAST_INSERT_OP, 0);
+    rc = sqlite4BtReplace(p->pBt, pK, nK, pV, nV);
+    rc = btRestoreTransaction(p, iLevel, rc);
+  }
+  return rc;
+}
+
+static int bt_delete(TestDb *pTestDb, void *pK, int nK){
+  return bt_write(pTestDb, pK, nK, 0, -1);
+}
+
+static int bt_delete_range(
+  TestDb *pTestDb, 
+  void *pKey1, int nKey1,
+  void *pKey2, int nKey2
+){
+  BtDb *p = (BtDb*)pTestDb;
+  bt_cursor *pCsr = 0;
+  int rc = SQLITE4_OK;
+  int iLevel;
+
+  rc = btMinTransaction(p, 2, &iLevel);
+  if( rc==SQLITE4_OK ){
+    if( p->bFastInsert ) sqlite4BtControl(p->pBt, BT_CONTROL_FAST_INSERT_OP, 0);
+    rc = sqlite4BtCsrOpen(p->pBt, 0, &pCsr);
+  }
+  while( rc==SQLITE4_OK ){
+    const void *pK;
+    int n;
+    int nCmp;
+    int res;
+
+    rc = sqlite4BtCsrSeek(pCsr, pKey1, nKey1, BT_SEEK_GE);
+    if( rc==SQLITE4_INEXACT ) rc = SQLITE4_OK;
+    if( rc!=SQLITE4_OK ) break;
+
+    rc = sqlite4BtCsrKey(pCsr, &pK, &n);
+    if( rc!=SQLITE4_OK ) break;
+
+    nCmp = MIN(n, nKey1);
+    res = memcmp(pKey1, pK, nCmp);
+    assert( res<0 || (res==0 && nKey1<=n) );
+    if( res==0 && nKey1==n ){
+      rc = sqlite4BtCsrNext(pCsr);
+      if( rc!=SQLITE4_OK ) break;
+      rc = sqlite4BtCsrKey(pCsr, &pK, &n);
+      if( rc!=SQLITE4_OK ) break;
+    }
+
+    nCmp = MIN(n, nKey2);
+    res = memcmp(pKey2, pK, nCmp);
+    if( res<0 || (res==0 && nKey2<=n) ) break;
+    
+    rc = sqlite4BtDelete(pCsr);
+  }
+  if( rc==SQLITE4_NOTFOUND ) rc = SQLITE4_OK;
+
+  sqlite4BtCsrClose(pCsr);
+
+  rc = btRestoreTransaction(p, iLevel, rc);
+  return rc;
+}
+
+static int bt_fetch(
+  TestDb *pTestDb, 
+  void *pK, int nK, 
+  void **ppVal, int *pnVal
+){
+  BtDb *p = (BtDb*)pTestDb;
+  bt_cursor *pCsr = 0;
+  int iLevel;
+  int rc = SQLITE4_OK;
+
+  iLevel = sqlite4BtTransactionLevel(p->pBt);
+  if( iLevel==0 ){ 
+    rc = sqlite4BtBegin(p->pBt, 1); 
+    if( rc!=SQLITE4_OK ) return rc;
+  }
+
+  if( p->bFastInsert ) sqlite4BtControl(p->pBt, BT_CONTROL_FAST_INSERT_OP, 0);
+  rc = sqlite4BtCsrOpen(p->pBt, 0, &pCsr);
+  if( rc==SQLITE4_OK ){
+    rc = sqlite4BtCsrSeek(pCsr, pK, nK, BT_SEEK_EQ);
+    if( rc==SQLITE4_OK ){
+      const void *pV = 0;
+      int nV = 0;
+      rc = sqlite4BtCsrData(pCsr, 0, -1, &pV, &nV);
+      if( rc==SQLITE4_OK ){
+        if( nV>p->nBuffer ){
+          free(p->aBuffer);
+          p->aBuffer = (u8*)malloc(nV*2);
+          p->nBuffer = nV*2;
+        }
+        memcpy(p->aBuffer, pV, nV);
+        *pnVal = nV;
+        *ppVal = (void*)(p->aBuffer);
+      }
+
+    }else if( rc==SQLITE4_INEXACT || rc==SQLITE4_NOTFOUND ){
+      *ppVal = 0;
+      *pnVal = -1;
+      rc = SQLITE4_OK;
+    }
+    sqlite4BtCsrClose(pCsr);
+  }
+
+  if( iLevel==0 ) sqlite4BtCommit(p->pBt, 0); 
+  return rc;
+}
+
+static int bt_scan(
+  TestDb *pTestDb,
+  void *pCtx,
+  int bReverse,
+  void *pFirst, int nFirst,
+  void *pLast, int nLast,
+  void (*xCallback)(void *, void *, int , void *, int)
+){
+  BtDb *p = (BtDb*)pTestDb;
+  bt_cursor *pCsr = 0;
+  int rc;
+  int iLevel;
+
+  rc = btMinTransaction(p, 1, &iLevel);
+
+  if( rc==SQLITE4_OK ){
+    if( p->bFastInsert ) sqlite4BtControl(p->pBt, BT_CONTROL_FAST_INSERT_OP, 0);
+    rc = sqlite4BtCsrOpen(p->pBt, 0, &pCsr);
+  }
+  if( rc==SQLITE4_OK ){
+    if( bReverse ){
+      if( pLast ){
+        rc = sqlite4BtCsrSeek(pCsr, pLast, nLast, BT_SEEK_LE);
+      }else{
+        rc = sqlite4BtCsrLast(pCsr);
+      }
+    }else{
+      rc = sqlite4BtCsrSeek(pCsr, pFirst, nFirst, BT_SEEK_GE);
+    }
+    if( rc==SQLITE4_INEXACT ) rc = SQLITE4_OK;
+
+    while( rc==SQLITE4_OK ){
+      const void *pK = 0; int nK = 0;
+      const void *pV = 0; int nV = 0;
+
+      rc = sqlite4BtCsrKey(pCsr, &pK, &nK);
+      if( rc==SQLITE4_OK ){
+        rc = sqlite4BtCsrData(pCsr, 0, -1, &pV, &nV);
+      }
+
+      if( rc!=SQLITE4_OK ) break;
+      if( bReverse ){
+        if( pFirst ){
+          int res;
+          int nCmp = MIN(nK, nFirst);
+          res = memcmp(pFirst, pK, nCmp);
+          if( res>0 || (res==0 && nK<nFirst) ) break;
+        }
+      }else{
+        if( pLast ){
+          int res;
+          int nCmp = MIN(nK, nLast);
+          res = memcmp(pLast, pK, nCmp);
+          if( res<0 || (res==0 && nK>nLast) ) break;
+        }
+      }
+
+      xCallback(pCtx, (void*)pK, nK, (void*)pV, nV);
+      if( bReverse ){
+        rc = sqlite4BtCsrPrev(pCsr);
+      }else{
+        rc = sqlite4BtCsrNext(pCsr);
+      }
+    }
+    if( rc==SQLITE4_NOTFOUND ) rc = SQLITE4_OK;
+
+    sqlite4BtCsrClose(pCsr);
+  }
+
+  rc = btRestoreTransaction(p, iLevel, rc);
+  return rc;
+}
+
+static int bt_begin(TestDb *pTestDb, int iLvl){
+  BtDb *p = (BtDb*)pTestDb;
+  int rc = sqlite4BtBegin(p->pBt, iLvl);
+  return rc;
+}
+
+static int bt_commit(TestDb *pTestDb, int iLvl){
+  BtDb *p = (BtDb*)pTestDb;
+  int rc = sqlite4BtCommit(p->pBt, iLvl);
+  return rc;
+}
+
+static int bt_rollback(TestDb *pTestDb, int iLvl){
+  BtDb *p = (BtDb*)pTestDb;
+  int rc = sqlite4BtRollback(p->pBt, iLvl);
+  return rc;
+}
+
+static int testParseOption(
+  const char **pzIn,              /* IN/OUT: pointer to next option */
+  const char **pzOpt,             /* OUT: nul-terminated option name */
+  const char **pzArg,             /* OUT: nul-terminated option argument */
+  char *pSpace                    /* Temporary space for output params */
+){
+  const char *p = *pzIn;
+  const char *pStart;
+  int n;
+
+  char *pOut = pSpace;
+
+  while( *p==' ' ) p++;
+  pStart = p;
+  while( *p && *p!='=' ) p++;
+  if( *p==0 ) return 1;
+
+  n = (p - pStart);
+  memcpy(pOut, pStart, n);
+  *pzOpt = pOut;
+  pOut += n;
+  *pOut++ = '\0';
+
+  p++;
+  pStart = p;
+  while( *p && *p!=' ' ) p++;
+  n = (p - pStart);
+
+  memcpy(pOut, pStart, n);
+  *pzArg = pOut;
+  pOut += n;
+  *pOut++ = '\0';
+
+  *pzIn = p;
+  return 0;
+}
+
+static int testParseInt(const char *z, int *piVal){
+  int i = 0;
+  const char *p = z;
+
+  while( *p>='0' && *p<='9' ){
+    i = i*10 + (*p - '0');
+    p++;
+  }
+  if( *p=='K' || *p=='k' ){
+    i = i * 1024;
+    p++;
+  }else if( *p=='M' || *p=='m' ){
+    i = i * 1024 * 1024;
+    p++;
+  }
+
+  if( *p ) return SQLITE4_ERROR;
+  *piVal = i;
+  return SQLITE4_OK;
+}
+
+static int testBtConfigure(BtDb *pDb, const char *zCfg, int *pbMt){
+  int rc = SQLITE4_OK;
+
+  if( zCfg ){
+    struct CfgParam {
+      const char *zParam;
+      int eParam;
+    } aParam[] = {
+      { "safety",         BT_CONTROL_SAFETY },
+      { "autockpt",       BT_CONTROL_AUTOCKPT },
+      { "multiproc",      BT_CONTROL_MULTIPROC },
+      { "blksz",          BT_CONTROL_BLKSZ },
+      { "pagesz",         BT_CONTROL_PAGESZ },
+      { "mt",             -1 },
+      { "fastinsert",     -2 },
+      { 0, 0 }
+    };
+    const char *z = zCfg;
+    int n = strlen(z);
+    char *aSpace;
+    const char *zOpt;
+    const char *zArg;
+
+    aSpace = (char*)testMalloc(n+2);
+    while( rc==SQLITE4_OK && 0==testParseOption(&z, &zOpt, &zArg, aSpace) ){
+      int i;
+      int iVal;
+      rc = testArgSelect(aParam, "param", zOpt, &i);
+      if( rc!=SQLITE4_OK ) break;
+
+      rc = testParseInt(zArg, &iVal);
+      if( rc!=SQLITE4_OK ) break;
+
+      switch( aParam[i].eParam ){
+        case -1:
+          *pbMt = iVal;
+          break;
+        case -2:
+          pDb->bFastInsert = 1;
+          break;
+        default:
+          rc = sqlite4BtControl(pDb->pBt, aParam[i].eParam, (void*)&iVal);
+          break;
+      }
+    }
+    testFree(aSpace);
+  }
+
+  return rc;
+}
+
+
+int test_bt_open(
+  const char *zSpec, 
+  const char *zFilename, 
+  int bClear, 
+  TestDb **ppDb
+){
+
+  static const DatabaseMethods SqlMethods = {
+    bt_close,
+    bt_write,
+    bt_delete,
+    bt_delete_range,
+    bt_fetch,
+    bt_scan,
+    bt_begin,
+    bt_commit,
+    bt_rollback
+  };
+  BtDb *p = 0;
+  bt_db *pBt = 0;
+  int rc;
+  sqlite4_env *pEnv = sqlite4_env_default();
+
+  if( bClear && zFilename && zFilename[0] ){
+    char *zLog = sqlite3_mprintf("%s-wal", zFilename);
+    unlink(zFilename);
+    unlink(zLog);
+    sqlite3_free(zLog);
+  }
+  
+  rc = sqlite4BtNew(pEnv, 0, &pBt);
+  if( rc==SQLITE4_OK ){
+    int mt = 0;                   /* True for multi-threaded connection */
+
+    p = (BtDb*)testMalloc(sizeof(BtDb));
+    p->base.pMethods = &SqlMethods;
+    p->pBt = pBt;
+    p->pEnv = pEnv;
+    p->nRef = 1;
+
+    p->env.pVfsCtx = (void*)p;
+    p->env.xFullpath = btVfsFullpath;
+    p->env.xOpen = btVfsOpen;
+    p->env.xSize = btVfsSize;
+    p->env.xRead = btVfsRead;
+    p->env.xWrite = btVfsWrite;
+    p->env.xTruncate = btVfsTruncate;
+    p->env.xSync = btVfsSync;
+    p->env.xSectorSize = btVfsSectorSize;
+    p->env.xClose = btVfsClose;
+    p->env.xUnlink = btVfsUnlink;
+    p->env.xLock = btVfsLock;
+    p->env.xTestLock = btVfsTestLock;
+    p->env.xShmMap = btVfsShmMap;
+    p->env.xShmBarrier = btVfsShmBarrier;
+    p->env.xShmUnmap = btVfsShmUnmap;
+
+    sqlite4BtControl(pBt, BT_CONTROL_GETVFS, (void*)&p->pVfs);
+    sqlite4BtControl(pBt, BT_CONTROL_SETVFS, (void*)&p->env);
+
+    rc = testBtConfigure(p, zSpec, &mt);
+    if( rc==SQLITE4_OK ){
+      rc = sqlite4BtOpen(pBt, zFilename);
+    }
+
+    if( rc==SQLITE4_OK && mt ){
+      int nAuto = 0;
+      rc = bgc_attach(p, zSpec);
+      sqlite4BtControl(pBt, BT_CONTROL_AUTOCKPT, (void*)&nAuto);
+    }
+  }
+
+  if( rc!=SQLITE4_OK && p ){
+    bt_close(&p->base);
+  }
+
+  *ppDb = &p->base;
+  return rc;
+}
+
+int test_fbt_open(
+  const char *zSpec, 
+  const char *zFilename, 
+  int bClear, 
+  TestDb **ppDb
+){
+  return test_bt_open("fast=1", zFilename, bClear, ppDb);
+}
+
+int test_fbts_open(
+  const char *zSpec, 
+  const char *zFilename, 
+  int bClear, 
+  TestDb **ppDb
+){
+  return test_bt_open("fast=1 blksz=32K pagesz=512", zFilename, bClear, ppDb);
+}
+
+
+void tdb_bt_prepare_sync_crash(TestDb *pTestDb, int iSync){
+  BtDb *p = (BtDb*)pTestDb;
+  assert( pTestDb->pMethods->xClose==bt_close );
+  assert( p->bCrash==0 );
+  p->nCrashSync = iSync;
+}
+
+bt_db *tdb_bt(TestDb *pDb){
+  if( pDb->pMethods->xClose==bt_close ){
+    return ((BtDb *)pDb)->pBt;
+  }
+  return 0;
+}
+
+/*************************************************************************
+** Beginning of code for background checkpointer.
+*/
+
+struct bt_ckpter {
+  sqlite4_buffer file;            /* File name */
+  sqlite4_buffer spec;            /* Options */
+  int nLogsize;                   /* Minimum log size to checkpoint */
+  int nRef;                       /* Number of clients */
+
+  int bDoWork;                    /* Set by client threads */
+  pthread_t ckpter_thread;        /* Checkpointer thread */
+  pthread_cond_t ckpter_cond;     /* Condition var the ckpter waits on */
+  pthread_mutex_t ckpter_mutex;   /* Mutex used with ckpter_cond */
+
+  bt_ckpter *pNext;               /* Next object in list at gBgc.pCkpter */
+};
+
+static struct GlobalBackgroundCheckpointer {
+  bt_ckpter *pCkpter;             /* Linked list of checkpointers */
+} gBgc;
+
+static void *bgc_main(void *pArg){
+  BtDb *pDb = 0;
+  int rc;
+  int mt;
+  bt_ckpter *pCkpter = (bt_ckpter*)pArg;
+
+  rc = test_bt_open("", (char*)pCkpter->file.p, 0, (TestDb**)&pDb);
+  assert( rc==SQLITE4_OK );
+  rc = testBtConfigure(pDb, (char*)pCkpter->spec.p, &mt);
+
+  while( pCkpter->nRef>0 ){
+    bt_db *db = pDb->pBt;
+    int nLog = 0;
+
+    sqlite4BtBegin(db, 1);
+    sqlite4BtCommit(db, 0);
+    sqlite4BtControl(db, BT_CONTROL_LOGSIZE, (void*)&nLog);
+
+    if( nLog>=pCkpter->nLogsize ){
+      int rc;
+      bt_checkpoint ckpt;
+      memset(&ckpt, 0, sizeof(bt_checkpoint));
+      ckpt.nFrameBuffer = nLog/2;
+      rc = sqlite4BtControl(db, BT_CONTROL_CHECKPOINT, (void*)&ckpt);
+      assert( rc==SQLITE4_OK );
+      sqlite4BtControl(db, BT_CONTROL_LOGSIZE, (void*)&nLog);
+    }
+
+    /* The thread will wake up when it is signaled either because another
+    ** thread has created some work for this one or because the connection
+    ** is being closed.  */
+    pthread_mutex_lock(&pCkpter->ckpter_mutex);
+    if( pCkpter->bDoWork==0 ){
+      pthread_cond_wait(&pCkpter->ckpter_cond, &pCkpter->ckpter_mutex);
+    }
+    pCkpter->bDoWork = 0;
+    pthread_mutex_unlock(&pCkpter->ckpter_mutex);
+  }
+
+  if( pDb ) bt_close((TestDb*)pDb);
+  return 0;
+}
+
+static void bgc_logsize_cb(void *pCtx, int nLogsize){
+  bt_ckpter *p = (bt_ckpter*)pCtx;
+  if( nLogsize>=p->nLogsize ){
+    pthread_mutex_lock(&p->ckpter_mutex);
+    p->bDoWork = 1;
+    pthread_cond_signal(&p->ckpter_cond);
+    pthread_mutex_unlock(&p->ckpter_mutex);
+  }
+}
+
+static int bgc_attach(BtDb *pDb, const char *zSpec){
+  int rc;
+  int n;
+  bt_info info;
+  bt_ckpter *pCkpter;
+
+  /* Figure out the full path to the database opened by handle pDb. */
+  info.eType = BT_INFO_FILENAME;
+  info.pgno = 0;
+  sqlite4_buffer_init(&info.output, 0);
+  rc = sqlite4BtControl(pDb->pBt, BT_CONTROL_INFO, (void*)&info);
+  if( rc!=SQLITE4_OK ) return rc;
+
+  sqlite4_mutex_enter(sqlite4_mutex_alloc(pDb->pEnv, SQLITE4_MUTEX_STATIC_KV));
+
+  /* Search for an existing bt_ckpter object. */
+  n = info.output.n;
+  for(pCkpter=gBgc.pCkpter; pCkpter; pCkpter=pCkpter->pNext){
+    if( n==pCkpter->file.n && 0==memcmp(info.output.p, pCkpter->file.p, n) ){
+      break;
+    }
+  }
+
+  /* Failed to find a suitable checkpointer. Create a new one. */
+  if( pCkpter==0 ){
+    bt_logsizecb cb;
+
+    pCkpter = testMalloc(sizeof(bt_ckpter));
+    memcpy(&pCkpter->file, &info.output, sizeof(sqlite4_buffer));
+    info.output.p = 0;
+    pCkpter->pNext = gBgc.pCkpter;
+    pCkpter->nLogsize = 1000;
+    gBgc.pCkpter = pCkpter;
+    pCkpter->nRef = 1;
+
+    sqlite4_buffer_init(&pCkpter->spec, 0);
+    rc = sqlite4_buffer_set(&pCkpter->spec, zSpec, strlen(zSpec)+1);
+    assert( rc==SQLITE4_OK );
+
+    /* Kick off the checkpointer thread. */
+    if( rc==0 ) rc = pthread_cond_init(&pCkpter->ckpter_cond, 0);
+    if( rc==0 ) rc = pthread_mutex_init(&pCkpter->ckpter_mutex, 0);
+    if( rc==0 ){
+      rc = pthread_create(&pCkpter->ckpter_thread, 0, bgc_main, (void*)pCkpter);
+    }
+    assert( rc==0 ); /* todo: Fix this */
+
+    /* Set up the logsize callback for the client thread */
+    cb.pCtx = (void*)pCkpter;
+    cb.xLogsize = bgc_logsize_cb;
+    sqlite4BtControl(pDb->pBt, BT_CONTROL_LOGSIZECB, (void*)&cb);
+  }else{
+    pCkpter->nRef++;
+  }
+
+  /* Assuming a checkpointer was encountered or effected, attach the 
+  ** connection to it.  */
+  if( pCkpter ){
+    pDb->pCkpter = pCkpter;
+  }
+
+  sqlite4_mutex_leave(sqlite4_mutex_alloc(pDb->pEnv, SQLITE4_MUTEX_STATIC_KV));
+  sqlite4_buffer_clear(&info.output);
+  return rc;
+}
+
+static int bgc_detach(BtDb *pDb){
+  int rc = SQLITE4_OK;
+  bt_ckpter *pCkpter = pDb->pCkpter;
+  if( pCkpter ){
+    int bShutdown = 0;            /* True if this is the last reference */
+
+    sqlite4_mutex_enter(sqlite4_mutex_alloc(pDb->pEnv,SQLITE4_MUTEX_STATIC_KV));
+    pCkpter->nRef--;
+    if( pCkpter->nRef==0 ){
+      bt_ckpter **pp;
+
+      *pp = pCkpter->pNext;
+      for(pp=&gBgc.pCkpter; *pp!=pCkpter; pp=&((*pp)->pNext));
+      bShutdown = 1;
+    }
+    sqlite4_mutex_leave(sqlite4_mutex_alloc(pDb->pEnv,SQLITE4_MUTEX_STATIC_KV));
+
+    if( bShutdown ){
+      void *pDummy;
+
+      /* Signal the checkpointer thread. */
+      pthread_mutex_lock(&pCkpter->ckpter_mutex);
+      pCkpter->bDoWork = 1;
+      pthread_cond_signal(&pCkpter->ckpter_cond);
+      pthread_mutex_unlock(&pCkpter->ckpter_mutex);
+
+      /* Join the checkpointer thread. */
+      pthread_join(pCkpter->ckpter_thread, &pDummy);
+      pthread_cond_destroy(&pCkpter->ckpter_cond);
+      pthread_mutex_destroy(&pCkpter->ckpter_mutex);
+
+      sqlite4_buffer_clear(&pCkpter->file);
+      sqlite4_buffer_clear(&pCkpter->spec);
+      testFree(pCkpter);
+    }
+
+    pDb->pCkpter = 0;
+  }
+  return rc;
+}
+
+/*
+** End of background checkpointer.
+*************************************************************************/
diff --git a/ext/lsm1/lsm-test/lsmtest_util.c b/ext/lsm1/lsm-test/lsmtest_util.c
new file mode 100644
index 0000000000000000000000000000000000000000..adab8a53e81cda1cae74bcfbcd35c74593efc731
--- /dev/null
+++ b/ext/lsm1/lsm-test/lsmtest_util.c
@@ -0,0 +1,223 @@
+
+#include "lsmtest.h"
+#include <stdarg.h>
+#include <stdio.h>
+#include <string.h>
+#ifndef _WIN32
+# include <sys/time.h>
+#endif
+
+/*
+** Global variables used within this module.
+*/
+static struct TestutilGlobal {
+  char **argv;
+  int argc;
+} g = {0, 0};
+
+static struct TestutilRnd {
+  unsigned int aRand1[2048];          /* Bits 0..10 */
+  unsigned int aRand2[2048];          /* Bits 11..21 */
+  unsigned int aRand3[1024];          /* Bits 22..31 */
+} r;
+
+/*************************************************************************
+** The following block is a copy of the implementation of SQLite function
+** sqlite3_randomness. This version has two important differences:
+**
+**   1. It always uses the same seed. So the sequence of random data output
+**      is the same for every run of the program.
+**
+**   2. It is not threadsafe.
+*/
+static struct sqlite3PrngType {
+  unsigned char i, j;             /* State variables */
+  unsigned char s[256];           /* State variables */
+} sqlite3Prng = {
+    0xAF, 0x28,
+  {
+    0x71, 0xF5, 0xB4, 0x6E, 0x80, 0xAB, 0x1D, 0xB8, 
+    0xFB, 0xB7, 0x49, 0xBF, 0xFF, 0x72, 0x2D, 0x14, 
+    0x79, 0x09, 0xE3, 0x78, 0x76, 0xB0, 0x2C, 0x0A, 
+    0x8E, 0x23, 0xEE, 0xDF, 0xE0, 0x9A, 0x2F, 0x67, 
+    0xE1, 0xBE, 0x0E, 0xA7, 0x08, 0x97, 0xEB, 0x77, 
+    0x78, 0xBA, 0x9D, 0xCA, 0x49, 0x4C, 0x60, 0x9A, 
+    0xF6, 0xBD, 0xDA, 0x7F, 0xBC, 0x48, 0x58, 0x52, 
+    0xE5, 0xCD, 0x83, 0x72, 0x23, 0x52, 0xFF, 0x6D, 
+    0xEF, 0x0F, 0x82, 0x29, 0xA0, 0x83, 0x3F, 0x7D, 
+    0xA4, 0x88, 0x31, 0xE7, 0x88, 0x92, 0x3B, 0x9B, 
+    0x3B, 0x2C, 0xC2, 0x4C, 0x71, 0xA2, 0xB0, 0xEA, 
+    0x36, 0xD0, 0x00, 0xF1, 0xD3, 0x39, 0x17, 0x5D, 
+    0x2A, 0x7A, 0xE4, 0xAD, 0xE1, 0x64, 0xCE, 0x0F, 
+    0x9C, 0xD9, 0xF5, 0xED, 0xB0, 0x22, 0x5E, 0x62, 
+    0x97, 0x02, 0xA3, 0x8C, 0x67, 0x80, 0xFC, 0x88, 
+    0x14, 0x0B, 0x15, 0x10, 0x0F, 0xC7, 0x40, 0xD4, 
+    0xF1, 0xF9, 0x0E, 0x1A, 0xCE, 0xB9, 0x1E, 0xA1, 
+    0x72, 0x8E, 0xD7, 0x78, 0x39, 0xCD, 0xF4, 0x5D, 
+    0x2A, 0x59, 0x26, 0x34, 0xF2, 0x73, 0x0B, 0xA0, 
+    0x02, 0x51, 0x2C, 0x03, 0xA3, 0xA7, 0x43, 0x13, 
+    0xE8, 0x98, 0x2B, 0xD2, 0x53, 0xF8, 0xEE, 0x91, 
+    0x7D, 0xE7, 0xE3, 0xDA, 0xD5, 0xBB, 0xC0, 0x92, 
+    0x9D, 0x98, 0x01, 0x2C, 0xF9, 0xB9, 0xA0, 0xEB, 
+    0xCF, 0x32, 0xFA, 0x01, 0x49, 0xA5, 0x1D, 0x9A, 
+    0x76, 0x86, 0x3F, 0x40, 0xD4, 0x89, 0x8F, 0x9C, 
+    0xE2, 0xE3, 0x11, 0x31, 0x37, 0xB2, 0x49, 0x28, 
+    0x35, 0xC0, 0x99, 0xB6, 0xD0, 0xBC, 0x66, 0x35, 
+    0xF7, 0x83, 0x5B, 0xD7, 0x37, 0x1A, 0x2B, 0x18, 
+    0xA6, 0xFF, 0x8D, 0x7C, 0x81, 0xA8, 0xFC, 0x9E, 
+    0xC4, 0xEC, 0x80, 0xD0, 0x98, 0xA7, 0x76, 0xCC, 
+    0x9C, 0x2F, 0x7B, 0xFF, 0x8E, 0x0E, 0xBB, 0x90, 
+    0xAE, 0x13, 0x06, 0xF5, 0x1C, 0x4E, 0x52, 0xF7
+  }
+};
+
+/* Generate and return single random byte */
+static unsigned char randomByte(void){
+  unsigned char t;
+  sqlite3Prng.i++;
+  t = sqlite3Prng.s[sqlite3Prng.i];
+  sqlite3Prng.j += t;
+  sqlite3Prng.s[sqlite3Prng.i] = sqlite3Prng.s[sqlite3Prng.j];
+  sqlite3Prng.s[sqlite3Prng.j] = t;
+  t += sqlite3Prng.s[sqlite3Prng.i];
+  return sqlite3Prng.s[t];
+}
+
+/*
+** Return N random bytes.
+*/
+static void randomBlob(int nBuf, unsigned char *zBuf){
+  int i;
+  for(i=0; i<nBuf; i++){
+    zBuf[i] = randomByte();
+  }
+}
+/*
+** End of code copied from SQLite.
+*************************************************************************/
+
+
+int testPrngInit(void){
+  randomBlob(sizeof(r.aRand1), (unsigned char *)r.aRand1);
+  randomBlob(sizeof(r.aRand2), (unsigned char *)r.aRand2);
+  randomBlob(sizeof(r.aRand3), (unsigned char *)r.aRand3);
+  return 0;
+}
+
+unsigned int testPrngValue(unsigned int iVal){
+  return
+    r.aRand1[iVal & 0x000007FF] ^
+    r.aRand2[(iVal>>11) & 0x000007FF] ^
+    r.aRand3[(iVal>>22) & 0x000003FF]
+  ;
+}
+
+void testPrngArray(unsigned int iVal, unsigned int *aOut, int nOut){
+  int i;
+  for(i=0; i<nOut; i++){
+    aOut[i] = testPrngValue(iVal+i);
+  }
+}
+
+void testPrngString(unsigned int iVal, char *aOut, int nOut){
+  int i;
+  for(i=0; i<(nOut-1); i++){
+    aOut[i] = 'a' + (testPrngValue(iVal+i) % 26);
+  }
+  aOut[i] = '\0';
+}
+
+void testErrorInit(int argc, char **argv){
+  g.argc = argc;
+  g.argv = argv;
+}
+
+void testPrintError(const char *zFormat, ...){
+  va_list ap;
+  va_start(ap, zFormat);
+  vfprintf(stderr, zFormat, ap);
+  va_end(ap);
+}
+
+void testPrintFUsage(const char *zFormat, ...){
+  va_list ap;
+  va_start(ap, zFormat);
+  fprintf(stderr, "Usage: %s %s ", g.argv[0], g.argv[1]);
+  vfprintf(stderr, zFormat, ap);
+  fprintf(stderr, "\n");
+  va_end(ap);
+}
+
+void testPrintUsage(const char *zArgs){
+  testPrintError("Usage: %s %s %s\n", g.argv[0], g.argv[1], zArgs);
+}
+
+
+static void argError(void *aData, const char *zType, int sz, const char *zArg){
+  struct Entry { const char *zName; };
+  struct Entry *pEntry;
+  const char *zPrev = 0;
+
+  testPrintError("unrecognized %s \"%s\": must be ", zType, zArg);
+  for(pEntry=(struct Entry *)aData; 
+      pEntry->zName; 
+      pEntry=(struct Entry *)&((unsigned char *)pEntry)[sz]
+  ){
+    if( zPrev ){ testPrintError("%s, ", zPrev); }
+    zPrev = pEntry->zName;
+  }
+  testPrintError("or %s\n", zPrev);
+}
+
+int testArgSelectX(
+  void *aData, 
+  const char *zType, 
+  int sz, 
+  const char *zArg, 
+  int *piOut
+){
+  struct Entry { const char *zName; };
+  struct Entry *pEntry;
+  int nArg = strlen(zArg);
+
+  int i = 0;
+  int iOut = -1;
+  int nOut = 0;
+
+  for(pEntry=(struct Entry *)aData; 
+      pEntry->zName; 
+      pEntry=(struct Entry *)&((unsigned char *)pEntry)[sz]
+  ){
+    int nName = strlen(pEntry->zName);
+    if( nArg<=nName && memcmp(pEntry->zName, zArg, nArg)==0 ){
+      iOut = i;
+      if( nName==nArg ){
+        nOut = 1;
+        break;
+      }
+      nOut++;
+    }
+    i++;
+  }
+
+  if( nOut!=1 ){
+    argError(aData, zType, sz, zArg);
+  }else{
+    *piOut = iOut;
+  }
+  return (nOut!=1);
+}
+
+struct timeval zero_time;
+
+void testTimeInit(void){
+  gettimeofday(&zero_time, 0);
+}
+
+int testTimeGet(void){
+  struct timeval now;
+  gettimeofday(&now, 0);
+  return
+    (((int)now.tv_sec - (int)zero_time.tv_sec)*1000) +
+    (((int)now.tv_usec - (int)zero_time.tv_usec)/1000);
+}
diff --git a/ext/lsm1/lsm-test/lsmtest_win32.c b/ext/lsm1/lsm-test/lsmtest_win32.c
new file mode 100644
index 0000000000000000000000000000000000000000..9472723368a72fe1bf87906b5ba5f822147bba4a
--- /dev/null
+++ b/ext/lsm1/lsm-test/lsmtest_win32.c
@@ -0,0 +1,30 @@
+
+#include "lsmtest.h"
+
+#ifdef _WIN32
+
+#define TICKS_PER_SECOND      (10000000)
+#define TICKS_PER_MICROSECOND (10)
+#define TICKS_UNIX_EPOCH      (116444736000000000LL)
+
+int win32GetTimeOfDay(
+  struct timeval *tp,
+  void *tzp
+){
+  FILETIME fileTime;
+  ULONGLONG ticks;
+  ULONGLONG unixTicks;
+
+  unused_parameter(tzp);
+  memset(&fileTime, 0, sizeof(FILETIME));
+  GetSystemTimeAsFileTime(&fileTime);
+  ticks = (ULONGLONG)fileTime.dwHighDateTime << 32;
+  ticks |= (ULONGLONG)fileTime.dwLowDateTime;
+  unixTicks = ticks - TICKS_UNIX_EPOCH;
+  tp->tv_sec = (long)(unixTicks / TICKS_PER_SECOND);
+  unixTicks -= ((ULONGLONG)tp->tv_sec * TICKS_PER_SECOND);
+  tp->tv_usec = (long)(unixTicks / TICKS_PER_MICROSECOND);
+
+  return 0;
+}
+#endif
diff --git a/ext/lsm1/lsm.h b/ext/lsm1/lsm.h
new file mode 100644
index 0000000000000000000000000000000000000000..48701c4c5e45eb1d79e33ec3bd07da9f27d0d1e5
--- /dev/null
+++ b/ext/lsm1/lsm.h
@@ -0,0 +1,684 @@
+/*
+** 2011-08-10
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** This file defines the LSM API.
+*/
+#ifndef _LSM_H
+#define _LSM_H
+#include <stddef.h>
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+** Opaque handle types.
+*/
+typedef struct lsm_compress lsm_compress;   /* Compression library functions */
+typedef struct lsm_compress_factory lsm_compress_factory;
+typedef struct lsm_cursor lsm_cursor;       /* Database cursor handle */
+typedef struct lsm_db lsm_db;               /* Database connection handle */
+typedef struct lsm_env lsm_env;             /* Runtime environment */
+typedef struct lsm_file lsm_file;           /* OS file handle */
+typedef struct lsm_mutex lsm_mutex;         /* Mutex handle */
+
+/* 64-bit integer type used for file offsets. */
+typedef long long int lsm_i64;              /* 64-bit signed integer type */
+
+/* Candidate values for the 3rd argument to lsm_env.xLock() */
+#define LSM_LOCK_UNLOCK 0
+#define LSM_LOCK_SHARED 1
+#define LSM_LOCK_EXCL   2
+
+/* Flags for lsm_env.xOpen() */
+#define LSM_OPEN_READONLY 0x0001
+
+/*
+** CAPI: Database Runtime Environment
+**
+** Run-time environment used by LSM
+*/
+struct lsm_env {
+  int nByte;                 /* Size of this structure in bytes */
+  int iVersion;              /* Version number of this structure (1) */
+  /****** file i/o ***********************************************/
+  void *pVfsCtx;
+  int (*xFullpath)(lsm_env*, const char *, char *, int *);
+  int (*xOpen)(lsm_env*, const char *, int flags, lsm_file **);
+  int (*xRead)(lsm_file *, lsm_i64, void *, int);
+  int (*xWrite)(lsm_file *, lsm_i64, void *, int);
+  int (*xTruncate)(lsm_file *, lsm_i64);
+  int (*xSync)(lsm_file *);
+  int (*xSectorSize)(lsm_file *);
+  int (*xRemap)(lsm_file *, lsm_i64, void **, lsm_i64*);
+  int (*xFileid)(lsm_file *, void *pBuf, int *pnBuf);
+  int (*xClose)(lsm_file *);
+  int (*xUnlink)(lsm_env*, const char *);
+  int (*xLock)(lsm_file*, int, int);
+  int (*xTestLock)(lsm_file*, int, int, int);
+  int (*xShmMap)(lsm_file*, int, int, void **);
+  void (*xShmBarrier)(void);
+  int (*xShmUnmap)(lsm_file*, int);
+  /****** memory allocation ****************************************/
+  void *pMemCtx;
+  void *(*xMalloc)(lsm_env*, size_t);            /* malloc(3) function */
+  void *(*xRealloc)(lsm_env*, void *, size_t);   /* realloc(3) function */
+  void (*xFree)(lsm_env*, void *);               /* free(3) function */
+  size_t (*xSize)(lsm_env*, void *);             /* xSize function */
+  /****** mutexes ****************************************************/
+  void *pMutexCtx;
+  int (*xMutexStatic)(lsm_env*,int,lsm_mutex**); /* Obtain a static mutex */
+  int (*xMutexNew)(lsm_env*, lsm_mutex**);       /* Get a new dynamic mutex */
+  void (*xMutexDel)(lsm_mutex *);           /* Delete an allocated mutex */
+  void (*xMutexEnter)(lsm_mutex *);         /* Grab a mutex */
+  int (*xMutexTry)(lsm_mutex *);            /* Attempt to obtain a mutex */
+  void (*xMutexLeave)(lsm_mutex *);         /* Leave a mutex */
+  int (*xMutexHeld)(lsm_mutex *);           /* Return true if mutex is held */
+  int (*xMutexNotHeld)(lsm_mutex *);        /* Return true if mutex not held */
+  /****** other ****************************************************/
+  int (*xSleep)(lsm_env*, int microseconds);
+
+  /* New fields may be added in future releases, in which case the
+  ** iVersion value will increase. */
+};
+
+/* 
+** Values that may be passed as the second argument to xMutexStatic. 
+*/
+#define LSM_MUTEX_GLOBAL 1
+#define LSM_MUTEX_HEAP   2
+
+/*
+** CAPI: LSM Error Codes
+*/
+#define LSM_OK         0
+#define LSM_ERROR      1
+#define LSM_BUSY       5
+#define LSM_NOMEM      7
+#define LSM_READONLY   8
+#define LSM_IOERR     10
+#define LSM_CORRUPT   11
+#define LSM_FULL      13
+#define LSM_CANTOPEN  14
+#define LSM_PROTOCOL  15
+#define LSM_MISUSE    21
+
+#define LSM_MISMATCH  50
+
+
+#define LSM_IOERR_NOENT (LSM_IOERR | (1<<8))
+
+/* 
+** CAPI: Creating and Destroying Database Connection Handles
+**
+** Open and close a database connection handle.
+*/
+int lsm_new(lsm_env*, lsm_db **ppDb);
+int lsm_close(lsm_db *pDb);
+
+/* 
+** CAPI: Connecting to a Database
+*/
+int lsm_open(lsm_db *pDb, const char *zFilename);
+
+/*
+** CAPI: Obtaining pointers to database environments
+**
+** Return a pointer to the environment used by the database connection 
+** passed as the first argument. Assuming the argument is valid, this 
+** function always returns a valid environment pointer - it cannot fail.
+*/
+lsm_env *lsm_get_env(lsm_db *pDb);
+
+/*
+** The lsm_default_env() function returns a pointer to the default LSM
+** environment for the current platform.
+*/
+lsm_env *lsm_default_env(void);
+
+
+/*
+** CAPI: Configuring a database connection.
+**
+** The lsm_config() function is used to configure a database connection.
+*/
+int lsm_config(lsm_db *, int, ...);
+
+/*
+** The following values may be passed as the second argument to lsm_config().
+**
+** LSM_CONFIG_AUTOFLUSH:
+**   A read/write integer parameter. 
+**
+**   This value determines the amount of data allowed to accumulate in a
+**   live in-memory tree before it is marked as old. After committing a
+**   transaction, a connection checks if the size of the live in-memory tree,
+**   including data structure overhead, is greater than the value of this
+**   option in KB. If it is, and there is not already an old in-memory tree,
+**   the live in-memory tree is marked as old.
+**
+**   The maximum allowable value is 1048576 (1GB). There is no minimum 
+**   value. If this parameter is set to zero, then an attempt is made to
+**   mark the live in-memory tree as old after each transaction is committed.
+**
+**   The default value is 1024 (1MB).
+**
+** LSM_CONFIG_PAGE_SIZE:
+**   A read/write integer parameter. This parameter may only be set before
+**   lsm_open() has been called.
+**
+** LSM_CONFIG_BLOCK_SIZE:
+**   A read/write integer parameter. 
+**
+**   This parameter may only be set before lsm_open() has been called. It
+**   must be set to a power of two between 64 and 65536, inclusive (block 
+**   sizes between 64KB and 64MB).
+**
+**   If the connection creates a new database, the block size of the new
+**   database is set to the value of this option in KB. After lsm_open()
+**   has been called, querying this parameter returns the actual block
+**   size of the opened database.
+**
+**   The default value is 1024 (1MB blocks).
+**
+** LSM_CONFIG_SAFETY:
+**   A read/write integer parameter. Valid values are 0, 1 (the default) 
+**   and 2. This parameter determines how robust the database is in the
+**   face of a system crash (e.g. a power failure or operating system 
+**   crash). As follows:
+**
+**     0 (off):    No robustness. A system crash may corrupt the database.
+**
+**     1 (normal): Some robustness. A system crash may not corrupt the
+**                 database file, but recently committed transactions may
+**                 be lost following recovery.
+**
+**     2 (full):   Full robustness. A system crash may not corrupt the
+**                 database file. Following recovery the database file
+**                 contains all successfully committed transactions.
+**
+** LSM_CONFIG_AUTOWORK:
+**   A read/write integer parameter.
+**
+** LSM_CONFIG_AUTOCHECKPOINT:
+**   A read/write integer parameter.
+**
+**   If this option is set to non-zero value N, then a checkpoint is
+**   automatically attempted after each N KB of data have been written to 
+**   the database file.
+**
+**   The amount of uncheckpointed data already written to the database file
+**   is a global parameter. After performing database work (writing to the
+**   database file), the process checks if the total amount of uncheckpointed 
+**   data exceeds the value of this paramter. If so, a checkpoint is performed.
+**   This means that this option may cause the connection to perform a 
+**   checkpoint even if the current connection has itself written very little
+**   data into the database file.
+**
+**   The default value is 2048 (checkpoint every 2MB).
+**
+** LSM_CONFIG_MMAP:
+**   A read/write integer parameter. If this value is set to 0, then the 
+**   database file is accessed using ordinary read/write IO functions. Or,
+**   if it is set to 1, then the database file is memory mapped and accessed
+**   that way. If this parameter is set to any value N greater than 1, then
+**   up to the first N KB of the file are memory mapped, and any remainder
+**   accessed using read/write IO.
+**
+**   The default value is 1 on 64-bit platforms and 32768 on 32-bit platforms.
+**   
+**
+** LSM_CONFIG_USE_LOG:
+**   A read/write boolean parameter. True (the default) to use the log
+**   file normally. False otherwise.
+**
+** LSM_CONFIG_AUTOMERGE:
+**   A read/write integer parameter. The minimum number of segments to
+**   merge together at a time. Default value 4.
+**
+** LSM_CONFIG_MAX_FREELIST:
+**   A read/write integer parameter. The maximum number of free-list 
+**   entries that are stored in a database checkpoint (the others are
+**   stored elsewhere in the database).
+**
+**   There is no reason for an application to configure or query this
+**   parameter. It is only present because configuring a small value
+**   makes certain parts of the lsm code easier to test.
+**
+** LSM_CONFIG_MULTIPLE_PROCESSES:
+**   A read/write boolean parameter. This parameter may only be set before
+**   lsm_open() has been called. If true, the library uses shared-memory
+**   and posix advisory locks to co-ordinate access by clients from within
+**   multiple processes. Otherwise, if false, all database clients must be 
+**   located in the same process. The default value is true.
+**
+** LSM_CONFIG_SET_COMPRESSION:
+**   Set the compression methods used to compress and decompress database
+**   content. The argument to this option should be a pointer to a structure
+**   of type lsm_compress. The lsm_config() method takes a copy of the 
+**   structures contents.
+**
+**   This option may only be used before lsm_open() is called. Invoking it
+**   after lsm_open() has been called results in an LSM_MISUSE error.
+**
+** LSM_CONFIG_GET_COMPRESSION:
+**   Query the compression methods used to compress and decompress database
+**   content.
+**
+** LSM_CONFIG_SET_COMPRESSION_FACTORY:
+**   Configure a factory method to be invoked in case of an LSM_MISMATCH
+**   error.
+**
+** LSM_CONFIG_READONLY:
+**   A read/write boolean parameter. This parameter may only be set before
+**   lsm_open() is called.
+*/
+#define LSM_CONFIG_AUTOFLUSH                1
+#define LSM_CONFIG_PAGE_SIZE                2
+#define LSM_CONFIG_SAFETY                   3
+#define LSM_CONFIG_BLOCK_SIZE               4
+#define LSM_CONFIG_AUTOWORK                 5
+#define LSM_CONFIG_MMAP                     7
+#define LSM_CONFIG_USE_LOG                  8
+#define LSM_CONFIG_AUTOMERGE                9
+#define LSM_CONFIG_MAX_FREELIST            10
+#define LSM_CONFIG_MULTIPLE_PROCESSES      11
+#define LSM_CONFIG_AUTOCHECKPOINT          12
+#define LSM_CONFIG_SET_COMPRESSION         13
+#define LSM_CONFIG_GET_COMPRESSION         14
+#define LSM_CONFIG_SET_COMPRESSION_FACTORY 15
+#define LSM_CONFIG_READONLY                16
+
+#define LSM_SAFETY_OFF    0
+#define LSM_SAFETY_NORMAL 1
+#define LSM_SAFETY_FULL   2
+
+/*
+** CAPI: Compression and/or Encryption Hooks
+*/
+struct lsm_compress {
+  void *pCtx;
+  unsigned int iId;
+  int (*xBound)(void *, int nSrc);
+  int (*xCompress)(void *, char *, int *, const char *, int);
+  int (*xUncompress)(void *, char *, int *, const char *, int);
+  void (*xFree)(void *pCtx);
+};
+
+struct lsm_compress_factory {
+  void *pCtx;
+  int (*xFactory)(void *, lsm_db *, unsigned int);
+  void (*xFree)(void *pCtx);
+};
+
+#define LSM_COMPRESSION_EMPTY 0
+#define LSM_COMPRESSION_NONE  1
+
+/*
+** CAPI: Allocating and Freeing Memory
+**
+** Invoke the memory allocation functions that belong to environment
+** pEnv. Or the system defaults if no memory allocation functions have 
+** been registered.
+*/
+void *lsm_malloc(lsm_env*, size_t);
+void *lsm_realloc(lsm_env*, void *, size_t);
+void lsm_free(lsm_env*, void *);
+
+/*
+** CAPI: Querying a Connection For Operational Data
+**
+** Query a database connection for operational statistics or data.
+*/
+int lsm_info(lsm_db *, int, ...);
+
+int lsm_get_user_version(lsm_db *, unsigned int *);
+int lsm_set_user_version(lsm_db *, unsigned int);
+
+/*
+** The following values may be passed as the second argument to lsm_info().
+**
+** LSM_INFO_NWRITE:
+**   The third parameter should be of type (int *). The location pointed
+**   to by the third parameter is set to the number of 4KB pages written to
+**   the database file during the lifetime of this connection. 
+**
+** LSM_INFO_NREAD:
+**   The third parameter should be of type (int *). The location pointed
+**   to by the third parameter is set to the number of 4KB pages read from
+**   the database file during the lifetime of this connection.
+**
+** LSM_INFO_DB_STRUCTURE:
+**   The third argument should be of type (char **). The location pointed
+**   to is populated with a pointer to a nul-terminated string containing
+**   the string representation of a Tcl data-structure reflecting the 
+**   current structure of the database file. Specifically, the current state
+**   of the worker snapshot. The returned string should be eventually freed 
+**   by the caller using lsm_free().
+**
+**   The returned list contains one element for each level in the database,
+**   in order from most to least recent. Each element contains a 
+**   single element for each segment comprising the corresponding level,
+**   starting with the lhs segment, then each of the rhs segments (if any)
+**   in order from most to least recent.
+**
+**   Each segment element is itself a list of 4 integer values, as follows:
+**
+**   <ol><li> First page of segment
+**       <li> Last page of segment
+**       <li> Root page of segment (if applicable)
+**       <li> Total number of pages in segment
+**   </ol>
+**
+** LSM_INFO_ARRAY_STRUCTURE:
+**   There should be two arguments passed following this option (i.e. a 
+**   total of four arguments passed to lsm_info()). The first argument 
+**   should be the page number of the first page in a database array 
+**   (perhaps obtained from an earlier INFO_DB_STRUCTURE call). The second 
+**   trailing argument should be of type (char **). The location pointed 
+**   to is populated with a pointer to a nul-terminated string that must 
+**   be eventually freed using lsm_free() by the caller.
+**
+**   The output string contains the text representation of a Tcl list of
+**   integers. Each pair of integers represent a range of pages used by
+**   the identified array. For example, if the array occupies database
+**   pages 993 to 1024, then pages 2048 to 2777, then the returned string
+**   will be "993 1024 2048 2777".
+**
+**   If the specified integer argument does not correspond to the first
+**   page of any database array, LSM_ERROR is returned and the output
+**   pointer is set to a NULL value.
+**
+** LSM_INFO_LOG_STRUCTURE:
+**   The third argument should be of type (char **). The location pointed
+**   to is populated with a pointer to a nul-terminated string containing
+**   the string representation of a Tcl data-structure. The returned 
+**   string should be eventually freed by the caller using lsm_free().
+**
+**   The Tcl structure returned is a list of six integers that describe
+**   the current structure of the log file.
+**
+** LSM_INFO_ARRAY_PAGES:
+**
+** LSM_INFO_PAGE_ASCII_DUMP:
+**   As with LSM_INFO_ARRAY_STRUCTURE, there should be two arguments passed
+**   with calls that specify this option - an integer page number and a
+**   (char **) used to return a nul-terminated string that must be later
+**   freed using lsm_free(). In this case the output string is populated
+**   with a human-readable description of the page content.
+**
+**   If the page cannot be decoded, it is not an error. In this case the
+**   human-readable output message will report the systems failure to 
+**   interpret the page data.
+**
+** LSM_INFO_PAGE_HEX_DUMP:
+**   This argument is similar to PAGE_ASCII_DUMP, except that keys and
+**   values are represented using hexadecimal notation instead of ascii.
+**
+** LSM_INFO_FREELIST:
+**   The third argument should be of type (char **). The location pointed
+**   to is populated with a pointer to a nul-terminated string containing
+**   the string representation of a Tcl data-structure. The returned 
+**   string should be eventually freed by the caller using lsm_free().
+**
+**   The Tcl structure returned is a list containing one element for each
+**   free block in the database. The element itself consists of two 
+**   integers - the block number and the id of the snapshot that freed it.
+**
+** LSM_INFO_CHECKPOINT_SIZE:
+**   The third argument should be of type (int *). The location pointed to
+**   by this argument is populated with the number of KB written to the
+**   database file since the most recent checkpoint.
+**
+** LSM_INFO_TREE_SIZE:
+**   If this value is passed as the second argument to an lsm_info() call, it
+**   should be followed by two arguments of type (int *) (for a total of four
+**   arguments).
+**
+**   At any time, there are either one or two tree structures held in shared
+**   memory that new database clients will access (there may also be additional
+**   tree structures being used by older clients - this API does not provide
+**   information on them). One tree structure - the current tree - is used to
+**   accumulate new data written to the database. The other tree structure -
+**   the old tree - is a read-only tree holding older data and may be flushed 
+**   to disk at any time.
+** 
+**   Assuming no error occurs, the location pointed to by the first of the two
+**   (int *) arguments is set to the size of the old in-memory tree in KB.
+**   The second is set to the size of the current, or live in-memory tree.
+**
+** LSM_INFO_COMPRESSION_ID:
+**   This value should be followed by a single argument of type 
+**   (unsigned int *). If successful, the location pointed to is populated 
+**   with the database compression id before returning.
+*/
+#define LSM_INFO_NWRITE           1
+#define LSM_INFO_NREAD            2
+#define LSM_INFO_DB_STRUCTURE     3
+#define LSM_INFO_LOG_STRUCTURE    4
+#define LSM_INFO_ARRAY_STRUCTURE  5
+#define LSM_INFO_PAGE_ASCII_DUMP  6
+#define LSM_INFO_PAGE_HEX_DUMP    7
+#define LSM_INFO_FREELIST         8
+#define LSM_INFO_ARRAY_PAGES      9
+#define LSM_INFO_CHECKPOINT_SIZE 10
+#define LSM_INFO_TREE_SIZE       11
+#define LSM_INFO_FREELIST_SIZE   12
+#define LSM_INFO_COMPRESSION_ID  13
+
+
+/* 
+** CAPI: Opening and Closing Write Transactions
+**
+** These functions are used to open and close transactions and nested 
+** sub-transactions.
+**
+** The lsm_begin() function is used to open transactions and sub-transactions. 
+** A successful call to lsm_begin() ensures that there are at least iLevel 
+** nested transactions open. To open a top-level transaction, pass iLevel=1. 
+** To open a sub-transaction within the top-level transaction, iLevel=2. 
+** Passing iLevel=0 is a no-op.
+**
+** lsm_commit() is used to commit transactions and sub-transactions. A
+** successful call to lsm_commit() ensures that there are at most iLevel 
+** nested transactions open. To commit a top-level transaction, pass iLevel=0. 
+** To commit all sub-transactions inside the main transaction, pass iLevel=1.
+**
+** Function lsm_rollback() is used to roll back transactions and
+** sub-transactions. A successful call to lsm_rollback() restores the database 
+** to the state it was in when the iLevel'th nested sub-transaction (if any) 
+** was first opened. And then closes transactions to ensure that there are 
+** at most iLevel nested transactions open. Passing iLevel=0 rolls back and 
+** closes the top-level transaction. iLevel=1 also rolls back the top-level 
+** transaction, but leaves it open. iLevel=2 rolls back the sub-transaction 
+** nested directly inside the top-level transaction (and leaves it open).
+*/
+int lsm_begin(lsm_db *pDb, int iLevel);
+int lsm_commit(lsm_db *pDb, int iLevel);
+int lsm_rollback(lsm_db *pDb, int iLevel);
+
+/* 
+** CAPI: Writing to a Database
+**
+** Write a new value into the database. If a value with a duplicate key 
+** already exists it is replaced.
+*/
+int lsm_insert(lsm_db*, const void *pKey, int nKey, const void *pVal, int nVal);
+
+/*
+** Delete a value from the database. No error is returned if the specified
+** key value does not exist in the database.
+*/
+int lsm_delete(lsm_db *, const void *pKey, int nKey);
+
+/*
+** Delete all database entries with keys that are greater than (pKey1/nKey1) 
+** and smaller than (pKey2/nKey2). Note that keys (pKey1/nKey1) and
+** (pKey2/nKey2) themselves, if they exist in the database, are not deleted.
+**
+** Return LSM_OK if successful, or an LSM error code otherwise.
+*/
+int lsm_delete_range(lsm_db *, 
+    const void *pKey1, int nKey1, const void *pKey2, int nKey2
+);
+
+/*
+** CAPI: Explicit Database Work and Checkpointing
+**
+** This function is called by a thread to work on the database structure.
+*/
+int lsm_work(lsm_db *pDb, int nMerge, int nKB, int *pnWrite);
+
+int lsm_flush(lsm_db *pDb);
+
+/*
+** Attempt to checkpoint the current database snapshot. Return an LSM
+** error code if an error occurs or LSM_OK otherwise.
+**
+** If the current snapshot has already been checkpointed, calling this 
+** function is a no-op. In this case if pnKB is not NULL, *pnKB is
+** set to 0. Or, if the current snapshot is successfully checkpointed
+** by this function and pbKB is not NULL, *pnKB is set to the number
+** of bytes written to the database file since the previous checkpoint
+** (the same measure as returned by the LSM_INFO_CHECKPOINT_SIZE query).
+*/
+int lsm_checkpoint(lsm_db *pDb, int *pnKB);
+
+/*
+** CAPI: Opening and Closing Database Cursors
+**
+** Open and close a database cursor.
+*/
+int lsm_csr_open(lsm_db *pDb, lsm_cursor **ppCsr);
+int lsm_csr_close(lsm_cursor *pCsr);
+
+/* 
+** CAPI: Positioning Database Cursors
+**
+** If the fourth parameter is LSM_SEEK_EQ, LSM_SEEK_GE or LSM_SEEK_LE,
+** this function searches the database for an entry with key (pKey/nKey). 
+** If an error occurs, an LSM error code is returned. Otherwise, LSM_OK.
+**
+** If no error occurs and the requested key is present in the database, the
+** cursor is left pointing to the entry with the specified key. Or, if the 
+** specified key is not present in the database the state of the cursor 
+** depends on the value passed as the final parameter, as follows:
+**
+** LSM_SEEK_EQ:
+**   The cursor is left at EOF (invalidated). A call to lsm_csr_valid()
+**   returns non-zero.
+**
+** LSM_SEEK_LE:
+**   The cursor is left pointing to the largest key in the database that
+**   is smaller than (pKey/nKey). If the database contains no keys smaller
+**   than (pKey/nKey), the cursor is left at EOF.
+**
+** LSM_SEEK_GE:
+**   The cursor is left pointing to the smallest key in the database that
+**   is larger than (pKey/nKey). If the database contains no keys larger
+**   than (pKey/nKey), the cursor is left at EOF.
+**
+** If the fourth parameter is LSM_SEEK_LEFAST, this function searches the
+** database in a similar manner to LSM_SEEK_LE, with two differences:
+**
+** <ol><li>Even if a key can be found (the cursor is not left at EOF), the
+** lsm_csr_value() function may not be used (attempts to do so return
+** LSM_MISUSE).
+**
+** <li>The key that the cursor is left pointing to may be one that has 
+** been recently deleted from the database. In this case it is
+** guaranteed that the returned key is larger than any key currently 
+** in the database that is less than or equal to (pKey/nKey).
+** </ol>
+**
+** LSM_SEEK_LEFAST requests are intended to be used to allocate database
+** keys.
+*/
+int lsm_csr_seek(lsm_cursor *pCsr, const void *pKey, int nKey, int eSeek);
+
+int lsm_csr_first(lsm_cursor *pCsr);
+int lsm_csr_last(lsm_cursor *pCsr);
+
+/*
+** Advance the specified cursor to the next or previous key in the database.
+** Return LSM_OK if successful, or an LSM error code otherwise.
+**
+** Functions lsm_csr_seek(), lsm_csr_first() and lsm_csr_last() are "seek"
+** functions. Whether or not lsm_csr_next and lsm_csr_prev may be called
+** successfully also depends on the most recent seek function called on
+** the cursor. Specifically:
+**
+** <ul>
+** <li> At least one seek function must have been called on the cursor.
+** <li> To call lsm_csr_next(), the most recent call to a seek function must
+** have been either lsm_csr_first() or a call to lsm_csr_seek() specifying
+** LSM_SEEK_GE.
+** <li> To call lsm_csr_prev(), the most recent call to a seek function must
+** have been either lsm_csr_last() or a call to lsm_csr_seek() specifying
+** LSM_SEEK_LE.
+** </ul>
+**
+** Otherwise, if the above conditions are not met when lsm_csr_next or 
+** lsm_csr_prev is called, LSM_MISUSE is returned and the cursor position
+** remains unchanged.
+*/
+int lsm_csr_next(lsm_cursor *pCsr);
+int lsm_csr_prev(lsm_cursor *pCsr);
+
+/*
+** Values that may be passed as the fourth argument to lsm_csr_seek().
+*/
+#define LSM_SEEK_LEFAST   -2
+#define LSM_SEEK_LE       -1
+#define LSM_SEEK_EQ        0
+#define LSM_SEEK_GE        1
+
+/* 
+** CAPI: Extracting Data From Database Cursors
+**
+** Retrieve data from a database cursor.
+*/
+int lsm_csr_valid(lsm_cursor *pCsr);
+int lsm_csr_key(lsm_cursor *pCsr, const void **ppKey, int *pnKey);
+int lsm_csr_value(lsm_cursor *pCsr, const void **ppVal, int *pnVal);
+
+/*
+** If no error occurs, this function compares the database key passed via
+** the pKey/nKey arguments with the key that the cursor passed as the first
+** argument currently points to. If the cursors key is less than, equal to
+** or greater than pKey/nKey, *piRes is set to less than, equal to or greater
+** than zero before returning. LSM_OK is returned in this case.
+**
+** Or, if an error occurs, an LSM error code is returned and the final 
+** value of *piRes is undefined. If the cursor does not point to a valid
+** key when this function is called, LSM_MISUSE is returned.
+*/
+int lsm_csr_cmp(lsm_cursor *pCsr, const void *pKey, int nKey, int *piRes);
+
+/*
+** CAPI: Change these!!
+**
+** Configure a callback to which debugging and other messages should 
+** be directed. Only useful for debugging lsm.
+*/
+void lsm_config_log(lsm_db *, void (*)(void *, int, const char *), void *);
+
+/*
+** Configure a callback that is invoked if the database connection ever
+** writes to the database file.
+*/
+void lsm_config_work_hook(lsm_db *, void (*)(lsm_db *, void *), void *);
+
+/* ENDOFAPI */
+#ifdef __cplusplus
+}  /* End of the 'extern "C"' block */
+#endif
+#endif /* ifndef _LSM_H */
diff --git a/ext/lsm1/lsmInt.h b/ext/lsm1/lsmInt.h
new file mode 100644
index 0000000000000000000000000000000000000000..5060366d0dcb288aba62e5f4a29ff0afc22eb151
--- /dev/null
+++ b/ext/lsm1/lsmInt.h
@@ -0,0 +1,997 @@
+/*
+** 2011-08-18
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** Internal structure definitions for the LSM module.
+*/
+#ifndef _LSM_INT_H
+#define _LSM_INT_H
+
+#include "lsm.h"
+#include <assert.h>
+#include <string.h>
+
+#include <stdarg.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <ctype.h>
+
+#ifdef _WIN32
+# ifdef _MSC_VER
+#  define snprintf _snprintf
+# endif
+#else
+# include <unistd.h>
+#endif
+
+#ifdef NDEBUG
+# ifdef LSM_DEBUG_EXPENSIVE
+#  undef LSM_DEBUG_EXPENSIVE
+# endif
+# ifdef LSM_DEBUG
+#  undef LSM_DEBUG
+# endif
+#else
+# ifndef LSM_DEBUG
+#  define LSM_DEBUG
+# endif
+#endif
+
+/* #define LSM_DEBUG_EXPENSIVE 1 */
+
+/*
+** Default values for various data structure parameters. These may be
+** overridden by calls to lsm_config().
+*/
+#define LSM_DFLT_PAGE_SIZE          (4 * 1024)
+#define LSM_DFLT_BLOCK_SIZE         (1 * 1024 * 1024)
+#define LSM_DFLT_AUTOFLUSH          (1 * 1024 * 1024)
+#define LSM_DFLT_AUTOCHECKPOINT     (i64)(2 * 1024 * 1024)
+#define LSM_DFLT_AUTOWORK           1
+#define LSM_DFLT_LOG_SIZE           (128*1024)
+#define LSM_DFLT_AUTOMERGE          4
+#define LSM_DFLT_SAFETY             LSM_SAFETY_NORMAL
+#define LSM_DFLT_MMAP               (LSM_IS_64_BIT ? 1 : 32768)
+#define LSM_DFLT_MULTIPLE_PROCESSES 1
+#define LSM_DFLT_USE_LOG            1
+
+/* Initial values for log file checksums. These are only used if the 
+** database file does not contain a valid checkpoint.  */
+#define LSM_CKSUM0_INIT 42
+#define LSM_CKSUM1_INIT 42
+
+/* "mmap" mode is currently only used in environments with 64-bit address 
+** spaces. The following macro is used to test for this.  */
+#define LSM_IS_64_BIT (sizeof(void*)==8)
+
+#define LSM_AUTOWORK_QUANT 32
+
+typedef struct Database Database;
+typedef struct DbLog DbLog;
+typedef struct FileSystem FileSystem;
+typedef struct Freelist Freelist;
+typedef struct FreelistEntry FreelistEntry;
+typedef struct Level Level;
+typedef struct LogMark LogMark;
+typedef struct LogRegion LogRegion;
+typedef struct LogWriter LogWriter;
+typedef struct LsmString LsmString;
+typedef struct Mempool Mempool;
+typedef struct Merge Merge;
+typedef struct MergeInput MergeInput;
+typedef struct MetaPage MetaPage;
+typedef struct MultiCursor MultiCursor;
+typedef struct Page Page;
+typedef struct Redirect Redirect;
+typedef struct Segment Segment;
+typedef struct SegmentMerger SegmentMerger;
+typedef struct ShmChunk ShmChunk;
+typedef struct ShmHeader ShmHeader;
+typedef struct ShmReader ShmReader;
+typedef struct Snapshot Snapshot;
+typedef struct TransMark TransMark;
+typedef struct Tree Tree;
+typedef struct TreeCursor TreeCursor;
+typedef struct TreeHeader TreeHeader;
+typedef struct TreeMark TreeMark;
+typedef struct TreeRoot TreeRoot;
+
+#ifndef _SQLITEINT_H_
+typedef unsigned char u8;
+typedef unsigned short int u16;
+typedef unsigned int u32;
+typedef lsm_i64 i64;
+typedef unsigned long long int u64;
+#endif
+
+/* A page number is a 64-bit integer. */
+typedef i64 LsmPgno;
+
+#ifdef LSM_DEBUG
+int lsmErrorBkpt(int);
+#else
+# define lsmErrorBkpt(x) (x)
+#endif
+
+#define LSM_PROTOCOL_BKPT lsmErrorBkpt(LSM_PROTOCOL)
+#define LSM_IOERR_BKPT    lsmErrorBkpt(LSM_IOERR)
+#define LSM_NOMEM_BKPT    lsmErrorBkpt(LSM_NOMEM)
+#define LSM_CORRUPT_BKPT  lsmErrorBkpt(LSM_CORRUPT)
+#define LSM_MISUSE_BKPT   lsmErrorBkpt(LSM_MISUSE)
+
+#define unused_parameter(x) (void)(x)
+#define array_size(x) (sizeof(x)/sizeof(x[0]))
+
+
+/* The size of each shared-memory chunk */
+#define LSM_SHM_CHUNK_SIZE (32*1024)
+
+/* The number of bytes reserved at the start of each shm chunk for MM. */
+#define LSM_SHM_CHUNK_HDR  (sizeof(ShmChunk))
+
+/* The number of available read locks. */
+#define LSM_LOCK_NREADER   6
+
+/* The number of available read-write client locks. */
+#define LSM_LOCK_NRWCLIENT   16
+
+/* Lock definitions. 
+*/
+#define LSM_LOCK_DMS1         1   /* Serialize connect/disconnect ops */
+#define LSM_LOCK_DMS2         2   /* Read-write connections */
+#define LSM_LOCK_DMS3         3   /* Read-only connections */
+#define LSM_LOCK_WRITER       4
+#define LSM_LOCK_WORKER       5
+#define LSM_LOCK_CHECKPOINTER 6
+#define LSM_LOCK_ROTRANS      7
+#define LSM_LOCK_READER(i)    ((i) + LSM_LOCK_ROTRANS + 1)
+#define LSM_LOCK_RWCLIENT(i)  ((i) + LSM_LOCK_READER(LSM_LOCK_NREADER))
+
+#define LSM_N_LOCK LSM_LOCK_RWCLIENT(LSM_LOCK_NRWCLIENT)
+
+/*
+** Meta-page size and usable size.
+*/
+#define LSM_META_PAGE_SIZE 4096
+
+#define LSM_META_RW_PAGE_SIZE (LSM_META_PAGE_SIZE - LSM_N_LOCK)
+
+/*
+** Hard limit on the number of free-list entries that may be stored in 
+** a checkpoint (the remainder are stored as a system record in the LSM).
+** See also LSM_CONFIG_MAX_FREELIST.
+*/
+#define LSM_MAX_FREELIST_ENTRIES 24
+
+#define LSM_MAX_BLOCK_REDIRECTS 16
+
+#define LSM_ATTEMPTS_BEFORE_PROTOCOL 10000
+
+
+/*
+** Each entry stored in the LSM (or in-memory tree structure) has an
+** associated mask of the following flags.
+*/
+#define LSM_START_DELETE 0x01     /* Start of open-ended delete range */
+#define LSM_END_DELETE   0x02     /* End of open-ended delete range */
+#define LSM_POINT_DELETE 0x04     /* Delete this key */
+#define LSM_INSERT       0x08     /* Insert this key and value */
+#define LSM_SEPARATOR    0x10     /* True if entry is separator key only */
+#define LSM_SYSTEMKEY    0x20     /* True if entry is a system key (FREELIST) */
+
+#define LSM_CONTIGUOUS   0x40     /* Used in lsm_tree.c */
+
+/*
+** A string that can grow by appending.
+*/
+struct LsmString {
+  lsm_env *pEnv;              /* Run-time environment */
+  int n;                      /* Size of string.  -1 indicates error */
+  int nAlloc;                 /* Space allocated for z[] */
+  char *z;                    /* The string content */
+};
+
+typedef struct LsmFile LsmFile;
+struct LsmFile {
+  lsm_file *pFile;
+  LsmFile *pNext;
+};
+
+/*
+** An instance of the following type is used to store an ordered list of
+** u32 values. 
+**
+** Note: This is a place-holder implementation. It should be replaced by
+** a version that avoids making a single large allocation when the array
+** contains a large number of values. For this reason, the internals of 
+** this object should only manipulated by the intArrayXXX() functions in 
+** lsm_tree.c.
+*/
+typedef struct IntArray IntArray;
+struct IntArray {
+  int nAlloc;
+  int nArray;
+  u32 *aArray;
+};
+
+struct Redirect {
+  int n;                          /* Number of redirects */
+  struct RedirectEntry {
+    int iFrom;
+    int iTo;
+  } *a;
+};
+
+/*
+** An instance of this structure represents a point in the history of the
+** tree structure to roll back to. Refer to comments in lsm_tree.c for 
+** details.
+*/
+struct TreeMark {
+  u32 iRoot;                      /* Offset of root node in shm file */
+  u32 nHeight;                    /* Current height of tree structure */
+  u32 iWrite;                     /* Write offset in shm file */
+  u32 nChunk;                     /* Number of chunks in shared-memory file */
+  u32 iFirst;                     /* First chunk in linked list */
+  u32 iNextShmid;                 /* Next id to allocate */
+  int iRollback;                  /* Index in lsm->rollback to revert to */
+};
+
+/*
+** An instance of this structure represents a point in the database log.
+*/
+struct LogMark {
+  i64 iOff;                       /* Offset into log (see lsm_log.c) */
+  int nBuf;                       /* Size of in-memory buffer here */
+  u8 aBuf[8];                     /* Bytes of content in aBuf[] */
+  u32 cksum0;                     /* Checksum 0 at offset (iOff-nBuf) */
+  u32 cksum1;                     /* Checksum 1 at offset (iOff-nBuf) */
+};
+
+struct TransMark {
+  TreeMark tree;
+  LogMark log;
+};
+
+/*
+** A structure that defines the start and end offsets of a region in the
+** log file. The size of the region in bytes is (iEnd - iStart), so if
+** iEnd==iStart the region is zero bytes in size.
+*/
+struct LogRegion {
+  i64 iStart;                     /* Start of region in log file */
+  i64 iEnd;                       /* End of region in log file */
+};
+
+struct DbLog {
+  u32 cksum0;                     /* Checksum 0 at offset iOff */
+  u32 cksum1;                     /* Checksum 1 at offset iOff */
+  i64 iSnapshotId;                /* Log space has been reclaimed to this ss */
+  LogRegion aRegion[3];           /* Log file regions (see docs in lsm_log.c) */
+};
+
+struct TreeRoot {
+  u32 iRoot;
+  u32 nHeight;
+  u32 nByte;                      /* Total size of this tree in bytes */
+  u32 iTransId;
+};
+
+/*
+** Tree header structure. 
+*/
+struct TreeHeader {
+  u32 iUsedShmid;                 /* Id of first shm chunk used by this tree */
+  u32 iNextShmid;                 /* Shm-id of next chunk allocated */
+  u32 iFirst;                     /* Chunk number of smallest shm-id */
+  u32 nChunk;                     /* Number of chunks in shared-memory file */
+  TreeRoot root;                  /* Root and height of current tree */
+  u32 iWrite;                     /* Write offset in shm file */
+  TreeRoot oldroot;               /* Root and height of the previous tree */
+  u32 iOldShmid;                  /* Last shm-id used by previous tree */
+  u32 iUsrVersion;                /* get/set_user_version() value */
+  i64 iOldLog;                    /* Log offset associated with old tree */
+  u32 oldcksum0;
+  u32 oldcksum1;
+  DbLog log;                      /* Current layout of log file */ 
+  u32 aCksum[2];                  /* Checksums 1 and 2. */
+};
+
+/*
+** Database handle structure.
+**
+** mLock:
+**   A bitmask representing the locks currently held by the connection.
+**   An LSM database supports N distinct locks, where N is some number less
+**   than or equal to 32. Locks are numbered starting from 1 (see the 
+**   definitions for LSM_LOCK_WRITER and co.).
+**
+**   The least significant 32-bits in mLock represent EXCLUSIVE locks. The
+**   most significant are SHARED locks. So, if a connection holds a SHARED
+**   lock on lock region iLock, then the following is true:
+**
+**       (mLock & ((iLock+32-1) << 1))
+**
+**   Or for an EXCLUSIVE lock:
+**
+**       (mLock & ((iLock-1) << 1))
+** 
+** pCsr:
+**   Points to the head of a linked list that contains all currently open
+**   cursors. Once this list becomes empty, the user has no outstanding
+**   cursors and the database handle can be successfully closed.
+**
+** pCsrCache:
+**   This list contains cursor objects that have been closed using
+**   lsm_csr_close(). Each time a cursor is closed, it is shifted from 
+**   the pCsr list to this list. When a new cursor is opened, this list
+**   is inspected to see if there exists a cursor object that can be
+**   reused. This is an optimization only.
+*/
+struct lsm_db {
+
+  /* Database handle configuration */
+  lsm_env *pEnv;                            /* runtime environment */
+  int (*xCmp)(void *, int, void *, int);    /* Compare function */
+
+  /* Values configured by calls to lsm_config */
+  int eSafety;                    /* LSM_SAFETY_OFF, NORMAL or FULL */
+  int bAutowork;                  /* Configured by LSM_CONFIG_AUTOWORK */
+  int nTreeLimit;                 /* Configured by LSM_CONFIG_AUTOFLUSH */
+  int nMerge;                     /* Configured by LSM_CONFIG_AUTOMERGE */
+  int bUseLog;                    /* Configured by LSM_CONFIG_USE_LOG */
+  int nDfltPgsz;                  /* Configured by LSM_CONFIG_PAGE_SIZE */
+  int nDfltBlksz;                 /* Configured by LSM_CONFIG_BLOCK_SIZE */
+  int nMaxFreelist;               /* Configured by LSM_CONFIG_MAX_FREELIST */
+  int iMmap;                      /* Configured by LSM_CONFIG_MMAP */
+  i64 nAutockpt;                  /* Configured by LSM_CONFIG_AUTOCHECKPOINT */
+  int bMultiProc;                 /* Configured by L_C_MULTIPLE_PROCESSES */
+  int bReadonly;                  /* Configured by LSM_CONFIG_READONLY */
+  lsm_compress compress;          /* Compression callbacks */
+  lsm_compress_factory factory;   /* Compression callback factory */
+
+  /* Sub-system handles */
+  FileSystem *pFS;                /* On-disk portion of database */
+  Database *pDatabase;            /* Database shared data */
+
+  int iRwclient;                  /* Read-write client lock held (-1 == none) */
+
+  /* Client transaction context */
+  Snapshot *pClient;              /* Client snapshot */
+  int iReader;                    /* Read lock held (-1 == unlocked) */
+  int bRoTrans;                   /* True if a read-only db trans is open */
+  MultiCursor *pCsr;              /* List of all open cursors */
+  LogWriter *pLogWriter;          /* Context for writing to the log file */
+  int nTransOpen;                 /* Number of opened write transactions */
+  int nTransAlloc;                /* Allocated size of aTrans[] array */
+  TransMark *aTrans;              /* Array of marks for transaction rollback */
+  IntArray rollback;              /* List of tree-nodes to roll back */
+  int bDiscardOld;                /* True if lsmTreeDiscardOld() was called */
+
+  MultiCursor *pCsrCache;         /* List of all closed cursors */
+
+  /* Worker context */
+  Snapshot *pWorker;              /* Worker snapshot (or NULL) */
+  Freelist *pFreelist;            /* See sortedNewToplevel() */
+  int bUseFreelist;               /* True to use pFreelist */
+  int bIncrMerge;                 /* True if currently doing a merge */
+
+  int bInFactory;                 /* True if within factory.xFactory() */
+
+  /* Debugging message callback */
+  void (*xLog)(void *, int, const char *);
+  void *pLogCtx;
+
+  /* Work done notification callback */
+  void (*xWork)(lsm_db *, void *);
+  void *pWorkCtx;
+
+  u64 mLock;                      /* Mask of current locks. See lsmShmLock(). */
+  lsm_db *pNext;                  /* Next connection to same database */
+
+  int nShm;                       /* Size of apShm[] array */
+  void **apShm;                   /* Shared memory chunks */
+  ShmHeader *pShmhdr;             /* Live shared-memory header */
+  TreeHeader treehdr;             /* Local copy of tree-header */
+  u32 aSnapshot[LSM_META_PAGE_SIZE / sizeof(u32)];
+};
+
+struct Segment {
+  LsmPgno iFirst;                  /* First page of this run */
+  LsmPgno iLastPg;                 /* Last page of this run */
+  LsmPgno iRoot;                   /* Root page number (if any) */
+  LsmPgno nSize;                   /* Size of this run in pages */
+
+  Redirect *pRedirect;             /* Block redirects (or NULL) */
+};
+
+/*
+** iSplitTopic/pSplitKey/nSplitKey:
+**   If nRight>0, this buffer contains a copy of the largest key that has
+**   already been written to the left-hand-side of the level.
+*/
+struct Level {
+  Segment lhs;                    /* Left-hand (main) segment */
+  int nRight;                     /* Size of apRight[] array */
+  Segment *aRhs;                  /* Old segments being merged into this */
+  int iSplitTopic;                /* Split key topic (if nRight>0) */
+  void *pSplitKey;                /* Pointer to split-key (if nRight>0) */
+  int nSplitKey;                  /* Number of bytes in split-key */
+
+  u16 iAge;                       /* Number of times data has been written */
+  u16 flags;                      /* Mask of LEVEL_XXX bits */
+  Merge *pMerge;                  /* Merge operation currently underway */
+  Level *pNext;                   /* Next level in tree */
+};
+
+/*
+** The Level.flags field is set to a combination of the following bits.
+**
+** LEVEL_FREELIST_ONLY:
+**   Set if the level consists entirely of free-list entries. 
+**
+** LEVEL_INCOMPLETE:
+**   This is set while a new toplevel level is being constructed. It is
+**   never set for any level other than a new toplevel.
+*/
+#define LEVEL_FREELIST_ONLY      0x0001
+#define LEVEL_INCOMPLETE         0x0002
+
+
+/*
+** A structure describing an ongoing merge. There is an instance of this
+** structure for every Level currently undergoing a merge in the worker
+** snapshot.
+**
+** It is assumed that code that uses an instance of this structure has
+** access to the associated Level struct.
+**
+** iOutputOff:
+**   The byte offset to write to next within the last page of the 
+**   output segment.
+*/
+struct MergeInput {
+  LsmPgno iPg;                    /* Page on which next input is stored */
+  int iCell;                      /* Cell containing next input to merge */
+};
+struct Merge {
+  int nInput;                     /* Number of input runs being merged */
+  MergeInput *aInput;             /* Array nInput entries in size */
+  MergeInput splitkey;            /* Location in file of current splitkey */
+  int nSkip;                      /* Number of separators entries to skip */
+  int iOutputOff;                 /* Write offset on output page */
+  LsmPgno iCurrentPtr;            /* Current pointer value */
+};
+
+/* 
+** The first argument to this macro is a pointer to a Segment structure.
+** Returns true if the structure instance indicates that the separators
+** array is valid.
+*/
+#define segmentHasSeparators(pSegment) ((pSegment)->sep.iFirst>0)
+
+/*
+** The values that accompany the lock held by a database reader.
+*/
+struct ShmReader {
+  u32 iTreeId;
+  i64 iLsmId;
+};
+
+/*
+** An instance of this structure is stored in the first shared-memory
+** page. The shared-memory header.
+**
+** bWriter:
+**   Immediately after opening a write transaction taking the WRITER lock, 
+**   each writer client sets this flag. It is cleared right before the 
+**   WRITER lock is relinquished. If a subsequent writer finds that this
+**   flag is already set when a write transaction is opened, this indicates
+**   that a previous writer failed mid-transaction.
+**
+** iMetaPage:
+**   If the database file does not contain a valid, synced, checkpoint, this
+**   value is set to 0. Otherwise, it is set to the meta-page number that
+**   contains the most recently written checkpoint (either 1 or 2).
+**
+** hdr1, hdr2:
+**   The two copies of the in-memory tree header. Two copies are required
+**   in case a writer fails while updating one of them.
+*/
+struct ShmHeader {
+  u32 aSnap1[LSM_META_PAGE_SIZE / 4];
+  u32 aSnap2[LSM_META_PAGE_SIZE / 4];
+  u32 bWriter;
+  u32 iMetaPage;
+  TreeHeader hdr1;
+  TreeHeader hdr2;
+  ShmReader aReader[LSM_LOCK_NREADER];
+};
+
+/*
+** An instance of this structure is stored at the start of each shared-memory
+** chunk except the first (which is the header chunk - see above).
+*/
+struct ShmChunk {
+  u32 iShmid;
+  u32 iNext;
+};
+
+/*
+** Maximum number of shared-memory chunks allowed in the *-shm file. Since
+** each shared-memory chunk is 32KB in size, this is a theoretical limit only.
+*/
+#define LSM_MAX_SHMCHUNKS  (1<<30)
+
+/* Return true if shm-sequence "a" is larger than or equal to "b" */
+#define shm_sequence_ge(a, b) (((u32)a-(u32)b) < LSM_MAX_SHMCHUNKS)
+
+#define LSM_APPLIST_SZ 4
+
+/*
+** An instance of the following structure stores the in-memory part of
+** the current free block list. This structure is to the free block list
+** as the in-memory tree is to the users database content. The contents 
+** of the free block list is found by merging the in-memory components 
+** with those stored in the LSM, just as the contents of the database is
+** found by merging the in-memory tree with the user data entries in the
+** LSM.
+**
+** Each FreelistEntry structure in the array represents either an insert
+** or delete operation on the free-list. For deletes, the FreelistEntry.iId
+** field is set to -1. For inserts, it is set to zero or greater. 
+**
+** The array of FreelistEntry structures is always sorted in order of
+** block number (ascending).
+**
+** When the in-memory free block list is written into the LSM, each insert
+** operation is written separately. The entry key is the bitwise inverse
+** of the block number as a 32-bit big-endian integer. This is done so that
+** the entries in the LSM are sorted in descending order of block id. 
+** The associated value is the snapshot id, formated as a varint.
+*/
+struct Freelist {
+  FreelistEntry *aEntry;          /* Free list entries */
+  int nEntry;                     /* Number of valid slots in aEntry[] */
+  int nAlloc;                     /* Allocated size of aEntry[] */
+};
+struct FreelistEntry {
+  u32 iBlk;                       /* Block number */
+  i64 iId;                        /* Largest snapshot id to use this block */
+};
+
+/*
+** A snapshot of a database. A snapshot contains all the information required
+** to read or write a database file on disk. See the description of struct
+** Database below for futher details.
+*/
+struct Snapshot {
+  Database *pDatabase;            /* Database this snapshot belongs to */
+  u32 iCmpId;                     /* Id of compression scheme */
+  Level *pLevel;                  /* Pointer to level 0 of snapshot (or NULL) */
+  i64 iId;                        /* Snapshot id */
+  i64 iLogOff;                    /* Log file offset */
+  Redirect redirect;              /* Block redirection array */
+
+  /* Used by worker snapshots only */
+  int nBlock;                        /* Number of blocks in database file */
+  LsmPgno aiAppend[LSM_APPLIST_SZ];  /* Append point list */
+  Freelist freelist;                 /* Free block list */
+  u32 nWrite;                        /* Total number of pages written to disk */
+};
+#define LSM_INITIAL_SNAPSHOT_ID 11
+
+/*
+** Functions from file "lsm_ckpt.c".
+*/
+int lsmCheckpointWrite(lsm_db *, u32 *);
+int lsmCheckpointLevels(lsm_db *, int, void **, int *);
+int lsmCheckpointLoadLevels(lsm_db *pDb, void *pVal, int nVal);
+
+int lsmCheckpointRecover(lsm_db *);
+int lsmCheckpointDeserialize(lsm_db *, int, u32 *, Snapshot **);
+
+int lsmCheckpointLoadWorker(lsm_db *pDb);
+int lsmCheckpointStore(lsm_db *pDb, int);
+
+int lsmCheckpointLoad(lsm_db *pDb, int *);
+int lsmCheckpointLoadOk(lsm_db *pDb, int);
+int lsmCheckpointClientCacheOk(lsm_db *);
+
+u32 lsmCheckpointNBlock(u32 *);
+i64 lsmCheckpointId(u32 *, int);
+u32 lsmCheckpointNWrite(u32 *, int);
+i64 lsmCheckpointLogOffset(u32 *);
+int lsmCheckpointPgsz(u32 *);
+int lsmCheckpointBlksz(u32 *);
+void lsmCheckpointLogoffset(u32 *aCkpt, DbLog *pLog);
+void lsmCheckpointZeroLogoffset(lsm_db *);
+
+int lsmCheckpointSaveWorker(lsm_db *pDb, int);
+int lsmDatabaseFull(lsm_db *pDb);
+int lsmCheckpointSynced(lsm_db *pDb, i64 *piId, i64 *piLog, u32 *pnWrite);
+
+int lsmCheckpointSize(lsm_db *db, int *pnByte);
+
+int lsmInfoCompressionId(lsm_db *db, u32 *piCmpId);
+
+/* 
+** Functions from file "lsm_tree.c".
+*/
+int lsmTreeNew(lsm_env *, int (*)(void *, int, void *, int), Tree **ppTree);
+void lsmTreeRelease(lsm_env *, Tree *);
+int lsmTreeInit(lsm_db *);
+int lsmTreeRepair(lsm_db *);
+
+void lsmTreeMakeOld(lsm_db *pDb);
+void lsmTreeDiscardOld(lsm_db *pDb);
+int lsmTreeHasOld(lsm_db *pDb);
+
+int lsmTreeSize(lsm_db *);
+int lsmTreeEndTransaction(lsm_db *pDb, int bCommit);
+int lsmTreeLoadHeader(lsm_db *pDb, int *);
+int lsmTreeLoadHeaderOk(lsm_db *, int);
+
+int lsmTreeInsert(lsm_db *pDb, void *pKey, int nKey, void *pVal, int nVal);
+int lsmTreeDelete(lsm_db *db, void *pKey1, int nKey1, void *pKey2, int nKey2);
+void lsmTreeRollback(lsm_db *pDb, TreeMark *pMark);
+void lsmTreeMark(lsm_db *pDb, TreeMark *pMark);
+
+int lsmTreeCursorNew(lsm_db *pDb, int, TreeCursor **);
+void lsmTreeCursorDestroy(TreeCursor *);
+
+int lsmTreeCursorSeek(TreeCursor *pCsr, void *pKey, int nKey, int *pRes);
+int lsmTreeCursorNext(TreeCursor *pCsr);
+int lsmTreeCursorPrev(TreeCursor *pCsr);
+int lsmTreeCursorEnd(TreeCursor *pCsr, int bLast);
+void lsmTreeCursorReset(TreeCursor *pCsr);
+int lsmTreeCursorKey(TreeCursor *pCsr, int *pFlags, void **ppKey, int *pnKey);
+int lsmTreeCursorFlags(TreeCursor *pCsr);
+int lsmTreeCursorValue(TreeCursor *pCsr, void **ppVal, int *pnVal);
+int lsmTreeCursorValid(TreeCursor *pCsr);
+int lsmTreeCursorSave(TreeCursor *pCsr);
+
+void lsmFlagsToString(int flags, char *zFlags);
+
+/* 
+** Functions from file "mem.c".
+*/
+void *lsmMalloc(lsm_env*, size_t);
+void lsmFree(lsm_env*, void *);
+void *lsmRealloc(lsm_env*, void *, size_t);
+void *lsmReallocOrFree(lsm_env*, void *, size_t);
+void *lsmReallocOrFreeRc(lsm_env *, void *, size_t, int *);
+
+void *lsmMallocZeroRc(lsm_env*, size_t, int *);
+void *lsmMallocRc(lsm_env*, size_t, int *);
+
+void *lsmMallocZero(lsm_env *pEnv, size_t);
+char *lsmMallocStrdup(lsm_env *pEnv, const char *);
+
+/* 
+** Functions from file "lsm_mutex.c".
+*/
+int lsmMutexStatic(lsm_env*, int, lsm_mutex **);
+int lsmMutexNew(lsm_env*, lsm_mutex **);
+void lsmMutexDel(lsm_env*, lsm_mutex *);
+void lsmMutexEnter(lsm_env*, lsm_mutex *);
+int lsmMutexTry(lsm_env*, lsm_mutex *);
+void lsmMutexLeave(lsm_env*, lsm_mutex *);
+
+#ifndef NDEBUG
+int lsmMutexHeld(lsm_env *, lsm_mutex *);
+int lsmMutexNotHeld(lsm_env *, lsm_mutex *);
+#endif
+
+/**************************************************************************
+** Start of functions from "lsm_file.c".
+*/
+int lsmFsOpen(lsm_db *, const char *, int);
+int lsmFsOpenLog(lsm_db *, int *);
+void lsmFsCloseLog(lsm_db *);
+void lsmFsClose(FileSystem *);
+
+int lsmFsUnmap(FileSystem *);
+
+int lsmFsConfigure(lsm_db *db);
+
+int lsmFsBlockSize(FileSystem *);
+void lsmFsSetBlockSize(FileSystem *, int);
+int lsmFsMoveBlock(FileSystem *pFS, Segment *pSeg, int iTo, int iFrom);
+
+int lsmFsPageSize(FileSystem *);
+void lsmFsSetPageSize(FileSystem *, int);
+
+int lsmFsFileid(lsm_db *pDb, void **ppId, int *pnId);
+
+/* Creating, populating, gobbling and deleting sorted runs. */
+void lsmFsGobble(lsm_db *, Segment *, LsmPgno *, int);
+int lsmFsSortedDelete(FileSystem *, Snapshot *, int, Segment *);
+int lsmFsSortedFinish(FileSystem *, Segment *);
+int lsmFsSortedAppend(FileSystem *, Snapshot *, Level *, int, Page **);
+int lsmFsSortedPadding(FileSystem *, Snapshot *, Segment *);
+
+/* Functions to retrieve the lsm_env pointer from a FileSystem or Page object */
+lsm_env *lsmFsEnv(FileSystem *);
+lsm_env *lsmPageEnv(Page *);
+FileSystem *lsmPageFS(Page *);
+
+int lsmFsSectorSize(FileSystem *);
+
+void lsmSortedSplitkey(lsm_db *, Level *, int *);
+
+/* Reading sorted run content. */
+int lsmFsDbPageLast(FileSystem *pFS, Segment *pSeg, Page **ppPg);
+int lsmFsDbPageGet(FileSystem *, Segment *, LsmPgno, Page **);
+int lsmFsDbPageNext(Segment *, Page *, int eDir, Page **);
+
+u8 *lsmFsPageData(Page *, int *);
+int lsmFsPageRelease(Page *);
+int lsmFsPagePersist(Page *);
+void lsmFsPageRef(Page *);
+LsmPgno lsmFsPageNumber(Page *);
+
+int lsmFsNRead(FileSystem *);
+int lsmFsNWrite(FileSystem *);
+
+int lsmFsMetaPageGet(FileSystem *, int, int, MetaPage **);
+int lsmFsMetaPageRelease(MetaPage *);
+u8 *lsmFsMetaPageData(MetaPage *, int *);
+
+#ifdef LSM_DEBUG
+int lsmFsDbPageIsLast(Segment *pSeg, Page *pPg);
+int lsmFsIntegrityCheck(lsm_db *);
+#endif
+
+LsmPgno lsmFsRedirectPage(FileSystem *, Redirect *, LsmPgno);
+
+int lsmFsPageWritable(Page *);
+
+/* Functions to read, write and sync the log file. */
+int lsmFsWriteLog(FileSystem *pFS, i64 iOff, LsmString *pStr);
+int lsmFsSyncLog(FileSystem *pFS);
+int lsmFsReadLog(FileSystem *pFS, i64 iOff, int nRead, LsmString *pStr);
+int lsmFsTruncateLog(FileSystem *pFS, i64 nByte);
+int lsmFsTruncateDb(FileSystem *pFS, i64 nByte);
+int lsmFsCloseAndDeleteLog(FileSystem *pFS);
+
+LsmFile *lsmFsDeferClose(FileSystem *pFS);
+
+/* And to sync the db file */
+int lsmFsSyncDb(FileSystem *, int);
+
+void lsmFsFlushWaiting(FileSystem *, int *);
+
+/* Used by lsm_info(ARRAY_STRUCTURE) and lsm_config(MMAP) */
+int lsmInfoArrayStructure(lsm_db *pDb, int bBlock, LsmPgno iFirst, char **pz);
+int lsmInfoArrayPages(lsm_db *pDb, LsmPgno iFirst, char **pzOut);
+int lsmConfigMmap(lsm_db *pDb, int *piParam);
+
+int lsmEnvOpen(lsm_env *, const char *, int, lsm_file **);
+int lsmEnvClose(lsm_env *pEnv, lsm_file *pFile);
+int lsmEnvLock(lsm_env *pEnv, lsm_file *pFile, int iLock, int eLock);
+int lsmEnvTestLock(lsm_env *pEnv, lsm_file *pFile, int iLock, int nLock, int);
+
+int lsmEnvShmMap(lsm_env *, lsm_file *, int, int, void **); 
+void lsmEnvShmBarrier(lsm_env *);
+void lsmEnvShmUnmap(lsm_env *, lsm_file *, int);
+
+void lsmEnvSleep(lsm_env *, int);
+
+int lsmFsReadSyncedId(lsm_db *db, int, i64 *piVal);
+
+int lsmFsSegmentContainsPg(FileSystem *pFS, Segment *, LsmPgno, int *);
+
+void lsmFsPurgeCache(FileSystem *);
+
+/*
+** End of functions from "lsm_file.c".
+**************************************************************************/
+
+/* 
+** Functions from file "lsm_sorted.c".
+*/
+int lsmInfoPageDump(lsm_db *, LsmPgno, int, char **);
+void lsmSortedCleanup(lsm_db *);
+int lsmSortedAutoWork(lsm_db *, int nUnit);
+
+int lsmSortedWalkFreelist(lsm_db *, int, int (*)(void *, int, i64), void *);
+
+int lsmSaveWorker(lsm_db *, int);
+
+int lsmFlushTreeToDisk(lsm_db *pDb);
+
+void lsmSortedRemap(lsm_db *pDb);
+
+void lsmSortedFreeLevel(lsm_env *pEnv, Level *);
+
+int lsmSortedAdvanceAll(lsm_db *pDb);
+
+int lsmSortedLoadMerge(lsm_db *, Level *, u32 *, int *);
+int lsmSortedLoadFreelist(lsm_db *pDb, void **, int *);
+
+void *lsmSortedSplitKey(Level *pLevel, int *pnByte);
+
+void lsmSortedSaveTreeCursors(lsm_db *);
+
+int lsmMCursorNew(lsm_db *, MultiCursor **);
+void lsmMCursorClose(MultiCursor *, int);
+int lsmMCursorSeek(MultiCursor *, int, void *, int , int);
+int lsmMCursorFirst(MultiCursor *);
+int lsmMCursorPrev(MultiCursor *);
+int lsmMCursorLast(MultiCursor *);
+int lsmMCursorValid(MultiCursor *);
+int lsmMCursorNext(MultiCursor *);
+int lsmMCursorKey(MultiCursor *, void **, int *);
+int lsmMCursorValue(MultiCursor *, void **, int *);
+int lsmMCursorType(MultiCursor *, int *);
+lsm_db *lsmMCursorDb(MultiCursor *);
+void lsmMCursorFreeCache(lsm_db *);
+
+int lsmSaveCursors(lsm_db *pDb);
+int lsmRestoreCursors(lsm_db *pDb);
+
+void lsmSortedDumpStructure(lsm_db *pDb, Snapshot *, int, int, const char *);
+void lsmFsDumpBlocklists(lsm_db *);
+
+void lsmSortedExpandBtreePage(Page *pPg, int nOrig);
+
+void lsmPutU32(u8 *, u32);
+u32 lsmGetU32(u8 *);
+u64 lsmGetU64(u8 *);
+
+/*
+** Functions from "lsm_varint.c".
+*/
+int lsmVarintPut32(u8 *, int);
+int lsmVarintGet32(u8 *, int *);
+int lsmVarintPut64(u8 *aData, i64 iVal);
+int lsmVarintGet64(const u8 *aData, i64 *piVal);
+
+int lsmVarintLen64(i64);
+
+int lsmVarintLen32(int);
+int lsmVarintSize(u8 c);
+
+/* 
+** Functions from file "main.c".
+*/
+void lsmLogMessage(lsm_db *, int, const char *, ...);
+int lsmInfoFreelist(lsm_db *pDb, char **pzOut);
+
+/*
+** Functions from file "lsm_log.c".
+*/
+int lsmLogBegin(lsm_db *pDb);
+int lsmLogWrite(lsm_db *, int, void *, int, void *, int);
+int lsmLogCommit(lsm_db *);
+void lsmLogEnd(lsm_db *pDb, int bCommit);
+void lsmLogTell(lsm_db *, LogMark *);
+void lsmLogSeek(lsm_db *, LogMark *);
+void lsmLogClose(lsm_db *);
+
+int lsmLogRecover(lsm_db *);
+int lsmInfoLogStructure(lsm_db *pDb, char **pzVal);
+
+/* Valid values for the second argument to lsmLogWrite(). */
+#define LSM_WRITE        0x06
+#define LSM_DELETE       0x08
+#define LSM_DRANGE       0x0A
+
+/**************************************************************************
+** Functions from file "lsm_shared.c".
+*/
+
+int lsmDbDatabaseConnect(lsm_db*, const char *);
+void lsmDbDatabaseRelease(lsm_db *);
+
+int lsmBeginReadTrans(lsm_db *);
+int lsmBeginWriteTrans(lsm_db *);
+int lsmBeginFlush(lsm_db *);
+
+int lsmDetectRoTrans(lsm_db *db, int *);
+int lsmBeginRoTrans(lsm_db *db);
+
+int lsmBeginWork(lsm_db *);
+void lsmFinishWork(lsm_db *, int, int *);
+
+int lsmFinishRecovery(lsm_db *);
+void lsmFinishReadTrans(lsm_db *);
+int lsmFinishWriteTrans(lsm_db *, int);
+int lsmFinishFlush(lsm_db *, int);
+
+int lsmSnapshotSetFreelist(lsm_db *, int *, int);
+
+Snapshot *lsmDbSnapshotClient(lsm_db *);
+Snapshot *lsmDbSnapshotWorker(lsm_db *);
+
+void lsmSnapshotSetCkptid(Snapshot *, i64);
+
+Level *lsmDbSnapshotLevel(Snapshot *);
+void lsmDbSnapshotSetLevel(Snapshot *, Level *);
+
+void lsmDbRecoveryComplete(lsm_db *, int);
+
+int lsmBlockAllocate(lsm_db *, int, int *);
+int lsmBlockFree(lsm_db *, int);
+int lsmBlockRefree(lsm_db *, int);
+
+void lsmFreelistDeltaBegin(lsm_db *);
+void lsmFreelistDeltaEnd(lsm_db *);
+int lsmFreelistDelta(lsm_db *pDb);
+
+DbLog *lsmDatabaseLog(lsm_db *pDb);
+
+#ifdef LSM_DEBUG
+  int lsmHoldingClientMutex(lsm_db *pDb);
+  int lsmShmAssertLock(lsm_db *db, int iLock, int eOp);
+  int lsmShmAssertWorker(lsm_db *db);
+#endif
+
+void lsmFreeSnapshot(lsm_env *, Snapshot *);
+
+
+/* Candidate values for the 3rd argument to lsmShmLock() */
+#define LSM_LOCK_UNLOCK 0
+#define LSM_LOCK_SHARED 1
+#define LSM_LOCK_EXCL   2
+
+int lsmShmCacheChunks(lsm_db *db, int nChunk);
+int lsmShmLock(lsm_db *db, int iLock, int eOp, int bBlock);
+int lsmShmTestLock(lsm_db *db, int iLock, int nLock, int eOp);
+void lsmShmBarrier(lsm_db *db);
+
+#ifdef LSM_DEBUG
+void lsmShmHasLock(lsm_db *db, int iLock, int eOp);
+#else
+# define lsmShmHasLock(x,y,z)
+#endif
+
+int lsmReadlock(lsm_db *, i64 iLsm, u32 iShmMin, u32 iShmMax);
+
+int lsmLsmInUse(lsm_db *db, i64 iLsmId, int *pbInUse);
+int lsmTreeInUse(lsm_db *db, u32 iLsmId, int *pbInUse);
+int lsmFreelistAppend(lsm_env *pEnv, Freelist *p, int iBlk, i64 iId);
+
+int lsmDbMultiProc(lsm_db *);
+void lsmDbDeferredClose(lsm_db *, lsm_file *, LsmFile *);
+LsmFile *lsmDbRecycleFd(lsm_db *);
+
+int lsmWalkFreelist(lsm_db *, int, int (*)(void *, int, i64), void *);
+
+int lsmCheckCompressionId(lsm_db *, u32);
+
+
+/**************************************************************************
+** functions in lsm_str.c
+*/
+void lsmStringInit(LsmString*, lsm_env *pEnv);
+int lsmStringExtend(LsmString*, int);
+int lsmStringAppend(LsmString*, const char *, int);
+void lsmStringVAppendf(LsmString*, const char *zFormat, va_list, va_list);
+void lsmStringAppendf(LsmString*, const char *zFormat, ...);
+void lsmStringClear(LsmString*);
+char *lsmMallocPrintf(lsm_env*, const char*, ...);
+int lsmStringBinAppend(LsmString *pStr, const u8 *a, int n);
+
+int lsmStrlen(const char *zName);
+
+
+
+/* 
+** Round up a number to the next larger multiple of 8.  This is used
+** to force 8-byte alignment on 64-bit architectures.
+*/
+#define ROUND8(x)     (((x)+7)&~7)
+
+#define LSM_MIN(x,y) ((x)>(y) ? (y) : (x))
+#define LSM_MAX(x,y) ((x)>(y) ? (x) : (y))
+
+#endif
diff --git a/ext/lsm1/lsm_ckpt.c b/ext/lsm1/lsm_ckpt.c
new file mode 100644
index 0000000000000000000000000000000000000000..1c4f788ad654e32d3d071f4587a64d08f283f7b5
--- /dev/null
+++ b/ext/lsm1/lsm_ckpt.c
@@ -0,0 +1,1239 @@
+/*
+** 2011-09-11
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** This file contains code to read and write checkpoints.
+**
+** A checkpoint represents the database layout at a single point in time.
+** It includes a log offset. When an existing database is opened, the
+** current state is determined by reading the newest checkpoint and updating
+** it with all committed transactions from the log that follow the specified
+** offset.
+*/
+#include "lsmInt.h"
+
+/*
+** CHECKPOINT BLOB FORMAT:
+**
+** A checkpoint blob is a series of unsigned 32-bit integers stored in
+** big-endian byte order. As follows:
+**
+**   Checkpoint header (see the CKPT_HDR_XXX #defines):
+**
+**     1. The checkpoint id MSW.
+**     2. The checkpoint id LSW.
+**     3. The number of integer values in the entire checkpoint, including 
+**        the two checksum values.
+**     4. The compression scheme id.
+**     5. The total number of blocks in the database.
+**     6. The block size.
+**     7. The number of levels.
+**     8. The nominal database page size.
+**     9. The number of pages (in total) written to the database file.
+**
+**   Log pointer:
+**
+**     1. The log offset MSW.
+**     2. The log offset LSW.
+**     3. Log checksum 0.
+**     4. Log checksum 1.
+**
+**     Note that the "log offset" is not the literal byte offset. Instead,
+**     it is the byte offset multiplied by 2, with least significant bit
+**     toggled each time the log pointer value is changed. This is to make
+**     sure that this field changes each time the log pointer is updated,
+**     even if the log file itself is disabled. See lsmTreeMakeOld().
+**
+**     See ckptExportLog() and ckptImportLog().
+**
+**   Append points:
+**
+**     8 integers (4 * 64-bit page numbers). See ckptExportAppendlist().
+**
+**   For each level in the database, a level record. Formatted as follows:
+**
+**     0. Age of the level (least significant 16-bits). And flags mask (most
+**        significant 16-bits).
+**     1. The number of right-hand segments (nRight, possibly 0),
+**     2. Segment record for left-hand segment (8 integers defined below),
+**     3. Segment record for each right-hand segment (8 integers defined below),
+**     4. If nRight>0, The number of segments involved in the merge
+**     5. if nRight>0, Current nSkip value (see Merge structure defn.),
+**     6. For each segment in the merge:
+**        5a. Page number of next cell to read during merge (this field
+**            is 64-bits - 2 integers)
+**        5b. Cell number of next cell to read during merge
+**     7. Page containing current split-key (64-bits - 2 integers).
+**     8. Cell within page containing current split-key.
+**     9. Current pointer value (64-bits - 2 integers).
+**
+**   The block redirect array:
+**
+**     1. Number of redirections (maximum LSM_MAX_BLOCK_REDIRECTS).
+**     2. For each redirection:
+**        a. "from" block number
+**        b. "to" block number
+**
+**   The in-memory freelist entries. Each entry is either an insert or a
+**   delete. The in-memory freelist is to the free-block-list as the
+**   in-memory tree is to the users database content.
+**
+**     1. Number of free-list entries stored in checkpoint header.
+**     2. Number of free blocks (in total).
+**     3. Total number of blocks freed during database lifetime.
+**     4. For each entry:
+**        2a. Block number of free block.
+**        2b. A 64-bit integer (MSW followed by LSW). -1 for a delete entry,
+**            or the associated checkpoint id for an insert.
+**
+**   The checksum:
+**
+**     1. Checksum value 1.
+**     2. Checksum value 2.
+**
+** In the above, a segment record consists of the following four 64-bit 
+** fields (converted to 2 * u32 by storing the MSW followed by LSW):
+**
+**     1. First page of array,
+**     2. Last page of array,
+**     3. Root page of array (or 0),
+**     4. Size of array in pages.
+*/
+
+/*
+** LARGE NUMBERS OF LEVEL RECORDS:
+**
+** A limit on the number of rhs segments that may be present in the database
+** file. Defining this limit ensures that all level records fit within
+** the 4096 byte limit for checkpoint blobs.
+**
+** The number of right-hand-side segments in a database is counted as 
+** follows:
+**
+**   * For each level in the database not undergoing a merge, add 1.
+**
+**   * For each level in the database that is undergoing a merge, add 
+**     the number of segments on the rhs of the level.
+**
+** A level record not undergoing a merge is 10 integers. A level record 
+** with nRhs rhs segments and (nRhs+1) input segments (i.e. including the 
+** separators from the next level) is (11*nRhs+20) integers. The maximum
+** per right-hand-side level is therefore 21 integers. So the maximum
+** size of all level records in a checkpoint is 21*40=820 integers.
+**
+** TODO: Before pointer values were changed from 32 to 64 bits, the above
+** used to come to 420 bytes - leaving significant space for a free-list
+** prefix. No more. To fix this, reduce the size of the level records in
+** a db snapshot, and improve management of the free-list tail in 
+** lsm_sorted.c. 
+*/
+#define LSM_MAX_RHS_SEGMENTS 40
+
+/*
+** LARGE NUMBERS OF FREELIST ENTRIES:
+**
+** There is also a limit (LSM_MAX_FREELIST_ENTRIES - defined in lsmInt.h)
+** on the number of free-list entries stored in a checkpoint. Since each 
+** free-list entry consists of 3 integers, the maximum free-list size is 
+** 3*100=300 integers. Combined with the limit on rhs segments defined
+** above, this ensures that a checkpoint always fits within a 4096 byte
+** meta page.
+**
+** If the database contains more than 100 free blocks, the "overflow" flag
+** in the checkpoint header is set and the remainder are stored in the
+** system FREELIST entry in the LSM (along with user data). The value
+** accompanying the FREELIST key in the LSM is, like a checkpoint, an array
+** of 32-bit big-endian integers. As follows:
+**
+**     For each entry:
+**       a. Block number of free block.
+**       b. MSW of associated checkpoint id.
+**       c. LSW of associated checkpoint id.
+**
+** The number of entries is not required - it is implied by the size of the
+** value blob containing the integer array.
+**
+** Note that the limit defined by LSM_MAX_FREELIST_ENTRIES is a hard limit.
+** The actual value used may be configured using LSM_CONFIG_MAX_FREELIST.
+*/
+
+/*
+** The argument to this macro must be of type u32. On a little-endian
+** architecture, it returns the u32 value that results from interpreting
+** the 4 bytes as a big-endian value. On a big-endian architecture, it
+** returns the value that would be produced by intepreting the 4 bytes
+** of the input value as a little-endian integer.
+*/
+#define BYTESWAP32(x) ( \
+   (((x)&0x000000FF)<<24) + (((x)&0x0000FF00)<<8)  \
+ + (((x)&0x00FF0000)>>8)  + (((x)&0xFF000000)>>24) \
+)
+
+static const int one = 1;
+#define LSM_LITTLE_ENDIAN (*(u8 *)(&one))
+
+/* Sizes, in integers, of various parts of the checkpoint. */
+#define CKPT_HDR_SIZE         9
+#define CKPT_LOGPTR_SIZE      4
+#define CKPT_APPENDLIST_SIZE  (LSM_APPLIST_SZ * 2)
+
+/* A #define to describe each integer in the checkpoint header. */
+#define CKPT_HDR_ID_MSW   0
+#define CKPT_HDR_ID_LSW   1
+#define CKPT_HDR_NCKPT    2
+#define CKPT_HDR_CMPID    3
+#define CKPT_HDR_NBLOCK   4
+#define CKPT_HDR_BLKSZ    5
+#define CKPT_HDR_NLEVEL   6
+#define CKPT_HDR_PGSZ     7
+#define CKPT_HDR_NWRITE   8
+
+#define CKPT_HDR_LO_MSW     9
+#define CKPT_HDR_LO_LSW    10
+#define CKPT_HDR_LO_CKSUM1 11
+#define CKPT_HDR_LO_CKSUM2 12
+
+typedef struct CkptBuffer CkptBuffer;
+
+/*
+** Dynamic buffer used to accumulate data for a checkpoint.
+*/
+struct CkptBuffer {
+  lsm_env *pEnv;
+  int nAlloc;
+  u32 *aCkpt;
+};
+
+/*
+** Calculate the checksum of the checkpoint specified by arguments aCkpt and
+** nCkpt. Store the checksum in *piCksum1 and *piCksum2 before returning.
+**
+** The value of the nCkpt parameter includes the two checksum values at
+** the end of the checkpoint. They are not used as inputs to the checksum 
+** calculation. The checksum is based on the array of (nCkpt-2) integers
+** at aCkpt[].
+*/
+static void ckptChecksum(u32 *aCkpt, u32 nCkpt, u32 *piCksum1, u32 *piCksum2){
+  u32 i;
+  u32 cksum1 = 1;
+  u32 cksum2 = 2;
+
+  if( nCkpt % 2 ){
+    cksum1 += aCkpt[nCkpt-3] & 0x0000FFFF;
+    cksum2 += aCkpt[nCkpt-3] & 0xFFFF0000;
+  }
+
+  for(i=0; (i+3)<nCkpt; i+=2){
+    cksum1 += cksum2 + aCkpt[i];
+    cksum2 += cksum1 + aCkpt[i+1];
+  }
+
+  *piCksum1 = cksum1;
+  *piCksum2 = cksum2;
+}
+
+/*
+** Set integer iIdx of the checkpoint accumulating in buffer *p to iVal.
+*/
+static void ckptSetValue(CkptBuffer *p, int iIdx, u32 iVal, int *pRc){
+  if( *pRc ) return;
+  if( iIdx>=p->nAlloc ){
+    int nNew = LSM_MAX(8, iIdx*2);
+    p->aCkpt = (u32 *)lsmReallocOrFree(p->pEnv, p->aCkpt, nNew*sizeof(u32));
+    if( !p->aCkpt ){
+      *pRc = LSM_NOMEM_BKPT;
+      return;
+    }
+    p->nAlloc = nNew;
+  }
+  p->aCkpt[iIdx] = iVal;
+}
+
+/*
+** Argument aInt points to an array nInt elements in size. Switch the 
+** endian-ness of each element of the array.
+*/
+static void ckptChangeEndianness(u32 *aInt, int nInt){
+  if( LSM_LITTLE_ENDIAN ){
+    int i;
+    for(i=0; i<nInt; i++) aInt[i] = BYTESWAP32(aInt[i]);
+  }
+}
+
+/*
+** Object *p contains a checkpoint in native byte-order. The checkpoint is
+** nCkpt integers in size, not including any checksum. This function sets
+** the two checksum elements of the checkpoint accordingly.
+*/
+static void ckptAddChecksum(CkptBuffer *p, int nCkpt, int *pRc){
+  if( *pRc==LSM_OK ){
+    u32 aCksum[2] = {0, 0};
+    ckptChecksum(p->aCkpt, nCkpt+2, &aCksum[0], &aCksum[1]);
+    ckptSetValue(p, nCkpt, aCksum[0], pRc);
+    ckptSetValue(p, nCkpt+1, aCksum[1], pRc);
+  }
+}
+
+static void ckptAppend64(CkptBuffer *p, int *piOut, i64 iVal, int *pRc){
+  int iOut = *piOut;
+  ckptSetValue(p, iOut++, (iVal >> 32) & 0xFFFFFFFF, pRc);
+  ckptSetValue(p, iOut++, (iVal & 0xFFFFFFFF), pRc);
+  *piOut = iOut;
+}
+
+static i64 ckptRead64(u32 *a){
+  return (((i64)a[0]) << 32) + (i64)a[1];
+}
+
+static i64 ckptGobble64(u32 *a, int *piIn){
+  int iIn = *piIn;
+  *piIn += 2;
+  return ckptRead64(&a[iIn]);
+}
+
+
+/*
+** Append a 6-value segment record corresponding to pSeg to the checkpoint 
+** buffer passed as the third argument.
+*/
+static void ckptExportSegment(
+  Segment *pSeg, 
+  CkptBuffer *p, 
+  int *piOut, 
+  int *pRc
+){
+  ckptAppend64(p, piOut, pSeg->iFirst, pRc);
+  ckptAppend64(p, piOut, pSeg->iLastPg, pRc);
+  ckptAppend64(p, piOut, pSeg->iRoot, pRc);
+  ckptAppend64(p, piOut, pSeg->nSize, pRc);
+}
+
+static void ckptExportLevel(
+  Level *pLevel,                  /* Level object to serialize */
+  CkptBuffer *p,                  /* Append new level record to this ckpt */
+  int *piOut,                     /* IN/OUT: Size of checkpoint so far */
+  int *pRc                        /* IN/OUT: Error code */
+){
+  int iOut = *piOut;
+  Merge *pMerge;
+
+  pMerge = pLevel->pMerge;
+  ckptSetValue(p, iOut++, (u32)pLevel->iAge + (u32)(pLevel->flags<<16), pRc);
+  ckptSetValue(p, iOut++, pLevel->nRight, pRc);
+  ckptExportSegment(&pLevel->lhs, p, &iOut, pRc);
+
+  assert( (pLevel->nRight>0)==(pMerge!=0) );
+  if( pMerge ){
+    int i;
+    for(i=0; i<pLevel->nRight; i++){
+      ckptExportSegment(&pLevel->aRhs[i], p, &iOut, pRc);
+    }
+    assert( pMerge->nInput==pLevel->nRight 
+         || pMerge->nInput==pLevel->nRight+1 
+    );
+    ckptSetValue(p, iOut++, pMerge->nInput, pRc);
+    ckptSetValue(p, iOut++, pMerge->nSkip, pRc);
+    for(i=0; i<pMerge->nInput; i++){
+      ckptAppend64(p, &iOut, pMerge->aInput[i].iPg, pRc);
+      ckptSetValue(p, iOut++, pMerge->aInput[i].iCell, pRc);
+    }
+    ckptAppend64(p, &iOut, pMerge->splitkey.iPg, pRc);
+    ckptSetValue(p, iOut++, pMerge->splitkey.iCell, pRc);
+    ckptAppend64(p, &iOut, pMerge->iCurrentPtr, pRc);
+  }
+
+  *piOut = iOut;
+}
+
+/*
+** Populate the log offset fields of the checkpoint buffer. 4 values.
+*/
+static void ckptExportLog(
+  lsm_db *pDb, 
+  int bFlush,
+  CkptBuffer *p, 
+  int *piOut, 
+  int *pRc
+){
+  int iOut = *piOut;
+
+  assert( iOut==CKPT_HDR_LO_MSW );
+
+  if( bFlush ){
+    i64 iOff = pDb->treehdr.iOldLog;
+    ckptAppend64(p, &iOut, iOff, pRc);
+    ckptSetValue(p, iOut++, pDb->treehdr.oldcksum0, pRc);
+    ckptSetValue(p, iOut++, pDb->treehdr.oldcksum1, pRc);
+  }else{
+    for(; iOut<=CKPT_HDR_LO_CKSUM2; iOut++){
+      ckptSetValue(p, iOut, pDb->pShmhdr->aSnap2[iOut], pRc);
+    }
+  }
+
+  assert( *pRc || iOut==CKPT_HDR_LO_CKSUM2+1 );
+  *piOut = iOut;
+}
+
+static void ckptExportAppendlist(
+  lsm_db *db,                     /* Database connection */
+  CkptBuffer *p,                  /* Checkpoint buffer to write to */
+  int *piOut,                     /* IN/OUT: Offset within checkpoint buffer */
+  int *pRc                        /* IN/OUT: Error code */
+){
+  int i;
+  LsmPgno *aiAppend = db->pWorker->aiAppend;
+
+  for(i=0; i<LSM_APPLIST_SZ; i++){
+    ckptAppend64(p, piOut, aiAppend[i], pRc);
+  }
+};
+
+static int ckptExportSnapshot( 
+  lsm_db *pDb,                    /* Connection handle */
+  int bLog,                       /* True to update log-offset fields */
+  i64 iId,                        /* Checkpoint id */
+  int bCksum,                     /* If true, include checksums */
+  void **ppCkpt,                  /* OUT: Buffer containing checkpoint */
+  int *pnCkpt                     /* OUT: Size of checkpoint in bytes */
+){
+  int rc = LSM_OK;                /* Return Code */
+  FileSystem *pFS = pDb->pFS;     /* File system object */
+  Snapshot *pSnap = pDb->pWorker; /* Worker snapshot */
+  int nLevel = 0;                 /* Number of levels in checkpoint */
+  int iLevel;                     /* Used to count out nLevel levels */
+  int iOut = 0;                   /* Current offset in aCkpt[] */
+  Level *pLevel;                  /* Level iterator */
+  int i;                          /* Iterator used while serializing freelist */
+  CkptBuffer ckpt;
+
+  /* Initialize the output buffer */
+  memset(&ckpt, 0, sizeof(CkptBuffer));
+  ckpt.pEnv = pDb->pEnv;
+  iOut = CKPT_HDR_SIZE;
+
+  /* Write the log offset into the checkpoint. */
+  ckptExportLog(pDb, bLog, &ckpt, &iOut, &rc);
+
+  /* Write the append-point list */
+  ckptExportAppendlist(pDb, &ckpt, &iOut, &rc);
+
+  /* Figure out how many levels will be written to the checkpoint. */
+  for(pLevel=lsmDbSnapshotLevel(pSnap); pLevel; pLevel=pLevel->pNext) nLevel++;
+
+  /* Serialize nLevel levels. */
+  iLevel = 0;
+  for(pLevel=lsmDbSnapshotLevel(pSnap); iLevel<nLevel; pLevel=pLevel->pNext){
+    ckptExportLevel(pLevel, &ckpt, &iOut, &rc);
+    iLevel++;
+  }
+
+  /* Write the block-redirect list */
+  ckptSetValue(&ckpt, iOut++, pSnap->redirect.n, &rc);
+  for(i=0; i<pSnap->redirect.n; i++){
+    ckptSetValue(&ckpt, iOut++, pSnap->redirect.a[i].iFrom, &rc);
+    ckptSetValue(&ckpt, iOut++, pSnap->redirect.a[i].iTo, &rc);
+  }
+
+  /* Write the freelist */
+  assert( pSnap->freelist.nEntry<=pDb->nMaxFreelist );
+  if( rc==LSM_OK ){
+    int nFree = pSnap->freelist.nEntry;
+    ckptSetValue(&ckpt, iOut++, nFree, &rc);
+    for(i=0; i<nFree; i++){
+      FreelistEntry *p = &pSnap->freelist.aEntry[i];
+      ckptSetValue(&ckpt, iOut++, p->iBlk, &rc);
+      ckptSetValue(&ckpt, iOut++, (p->iId >> 32) & 0xFFFFFFFF, &rc);
+      ckptSetValue(&ckpt, iOut++, p->iId & 0xFFFFFFFF, &rc);
+    }
+  }
+
+  /* Write the checkpoint header */
+  assert( iId>=0 );
+  assert( pSnap->iCmpId==pDb->compress.iId
+       || pSnap->iCmpId==LSM_COMPRESSION_EMPTY 
+  );
+  ckptSetValue(&ckpt, CKPT_HDR_ID_MSW, (u32)(iId>>32), &rc);
+  ckptSetValue(&ckpt, CKPT_HDR_ID_LSW, (u32)(iId&0xFFFFFFFF), &rc);
+  ckptSetValue(&ckpt, CKPT_HDR_NCKPT, iOut+2, &rc);
+  ckptSetValue(&ckpt, CKPT_HDR_CMPID, pDb->compress.iId, &rc);
+  ckptSetValue(&ckpt, CKPT_HDR_NBLOCK, pSnap->nBlock, &rc);
+  ckptSetValue(&ckpt, CKPT_HDR_BLKSZ, lsmFsBlockSize(pFS), &rc);
+  ckptSetValue(&ckpt, CKPT_HDR_NLEVEL, nLevel, &rc);
+  ckptSetValue(&ckpt, CKPT_HDR_PGSZ, lsmFsPageSize(pFS), &rc);
+  ckptSetValue(&ckpt, CKPT_HDR_NWRITE, pSnap->nWrite, &rc);
+
+  if( bCksum ){
+    ckptAddChecksum(&ckpt, iOut, &rc);
+  }else{
+    ckptSetValue(&ckpt, iOut, 0, &rc);
+    ckptSetValue(&ckpt, iOut+1, 0, &rc);
+  }
+  iOut += 2;
+  assert( iOut<=1024 );
+
+#ifdef LSM_LOG_FREELIST
+  lsmLogMessage(pDb, rc, 
+      "ckptExportSnapshot(): id=%lld freelist: %d", iId, pSnap->freelist.nEntry
+  );
+  for(i=0; i<pSnap->freelist.nEntry; i++){
+  lsmLogMessage(pDb, rc, 
+      "ckptExportSnapshot(): iBlk=%d id=%lld", 
+      pSnap->freelist.aEntry[i].iBlk,
+      pSnap->freelist.aEntry[i].iId
+  );
+  }
+#endif
+
+  *ppCkpt = (void *)ckpt.aCkpt;
+  if( pnCkpt ) *pnCkpt = sizeof(u32)*iOut;
+  return rc;
+}
+
+
+/*
+** Helper function for ckptImport().
+*/
+static void ckptNewSegment(
+  u32 *aIn,
+  int *piIn,
+  Segment *pSegment               /* Populate this structure */
+){
+  assert( pSegment->iFirst==0 && pSegment->iLastPg==0 );
+  assert( pSegment->nSize==0 && pSegment->iRoot==0 );
+  pSegment->iFirst = ckptGobble64(aIn, piIn);
+  pSegment->iLastPg = ckptGobble64(aIn, piIn);
+  pSegment->iRoot = ckptGobble64(aIn, piIn);
+  pSegment->nSize = ckptGobble64(aIn, piIn);
+  assert( pSegment->iFirst );
+}
+
+static int ckptSetupMerge(lsm_db *pDb, u32 *aInt, int *piIn, Level *pLevel){
+  Merge *pMerge;                  /* Allocated Merge object */
+  int nInput;                     /* Number of input segments in merge */
+  int iIn = *piIn;                /* Next value to read from aInt[] */
+  int i;                          /* Iterator variable */
+  int nByte;                      /* Number of bytes to allocate */
+
+  /* Allocate the Merge object. If malloc() fails, return LSM_NOMEM. */
+  nInput = (int)aInt[iIn++];
+  nByte = sizeof(Merge) + sizeof(MergeInput) * nInput;
+  pMerge = (Merge *)lsmMallocZero(pDb->pEnv, nByte);
+  if( !pMerge ) return LSM_NOMEM_BKPT;
+  pLevel->pMerge = pMerge;
+
+  /* Populate the Merge object. */
+  pMerge->aInput = (MergeInput *)&pMerge[1];
+  pMerge->nInput = nInput;
+  pMerge->iOutputOff = -1;
+  pMerge->nSkip = (int)aInt[iIn++];
+  for(i=0; i<nInput; i++){
+    pMerge->aInput[i].iPg = ckptGobble64(aInt, &iIn);
+    pMerge->aInput[i].iCell = (int)aInt[iIn++];
+  }
+  pMerge->splitkey.iPg = ckptGobble64(aInt, &iIn);
+  pMerge->splitkey.iCell = (int)aInt[iIn++];
+  pMerge->iCurrentPtr = ckptGobble64(aInt, &iIn);
+
+  /* Set *piIn and return LSM_OK. */
+  *piIn = iIn;
+  return LSM_OK;
+}
+
+
+static int ckptLoadLevels(
+  lsm_db *pDb,
+  u32 *aIn, 
+  int *piIn, 
+  int nLevel,
+  Level **ppLevel
+){
+  int i;
+  int rc = LSM_OK;
+  Level *pRet = 0;
+  Level **ppNext;
+  int iIn = *piIn;
+
+  ppNext = &pRet;
+  for(i=0; rc==LSM_OK && i<nLevel; i++){
+    int iRight;
+    Level *pLevel;
+
+    /* Allocate space for the Level structure and Level.apRight[] array */
+    pLevel = (Level *)lsmMallocZeroRc(pDb->pEnv, sizeof(Level), &rc);
+    if( rc==LSM_OK ){
+      pLevel->iAge = (u16)(aIn[iIn] & 0x0000FFFF);
+      pLevel->flags = (u16)((aIn[iIn]>>16) & 0x0000FFFF);
+      iIn++;
+      pLevel->nRight = aIn[iIn++];
+      if( pLevel->nRight ){
+        int nByte = sizeof(Segment) * pLevel->nRight;
+        pLevel->aRhs = (Segment *)lsmMallocZeroRc(pDb->pEnv, nByte, &rc);
+      }
+      if( rc==LSM_OK ){
+        *ppNext = pLevel;
+        ppNext = &pLevel->pNext;
+
+        /* Allocate the main segment */
+        ckptNewSegment(aIn, &iIn, &pLevel->lhs);
+
+        /* Allocate each of the right-hand segments, if any */
+        for(iRight=0; iRight<pLevel->nRight; iRight++){
+          ckptNewSegment(aIn, &iIn, &pLevel->aRhs[iRight]);
+        }
+
+        /* Set up the Merge object, if required */
+        if( pLevel->nRight>0 ){
+          rc = ckptSetupMerge(pDb, aIn, &iIn, pLevel);
+        }
+      }
+    }
+  }
+
+  if( rc!=LSM_OK ){
+    /* An OOM must have occurred. Free any level structures allocated and
+    ** return the error to the caller. */
+    lsmSortedFreeLevel(pDb->pEnv, pRet);
+    pRet = 0;
+  }
+
+  *ppLevel = pRet;
+  *piIn = iIn;
+  return rc;
+}
+
+
+int lsmCheckpointLoadLevels(lsm_db *pDb, void *pVal, int nVal){
+  int rc = LSM_OK;
+  if( nVal>0 ){
+    u32 *aIn;
+
+    aIn = lsmMallocRc(pDb->pEnv, nVal, &rc);
+    if( aIn ){
+      Level *pLevel = 0;
+      Level *pParent;
+
+      int nIn;
+      int nLevel;
+      int iIn = 1;
+      memcpy(aIn, pVal, nVal);
+      nIn = nVal / sizeof(u32);
+
+      ckptChangeEndianness(aIn, nIn);
+      nLevel = aIn[0];
+      rc = ckptLoadLevels(pDb, aIn, &iIn, nLevel, &pLevel);
+      lsmFree(pDb->pEnv, aIn);
+      assert( rc==LSM_OK || pLevel==0 );
+      if( rc==LSM_OK ){
+        pParent = lsmDbSnapshotLevel(pDb->pWorker);
+        assert( pParent );
+        while( pParent->pNext ) pParent = pParent->pNext;
+        pParent->pNext = pLevel;
+      }
+    }
+  }
+
+  return rc;
+}
+
+/*
+** Return the data for the LEVELS record.
+**
+** The size of the checkpoint that can be stored in the database header
+** must not exceed 1024 32-bit integers. Normally, it does not. However,
+** if it does, part of the checkpoint must be stored in the LSM. This
+** routine returns that part.
+*/
+int lsmCheckpointLevels(
+  lsm_db *pDb,                    /* Database handle */
+  int nLevel,                     /* Number of levels to write to blob */
+  void **paVal,                   /* OUT: Pointer to LEVELS blob */
+  int *pnVal                      /* OUT: Size of LEVELS blob in bytes */
+){
+  Level *p;                       /* Used to iterate through levels */
+  int nAll= 0;
+  int rc;
+  int i;
+  int iOut;
+  CkptBuffer ckpt;
+  assert( nLevel>0 );
+
+  for(p=lsmDbSnapshotLevel(pDb->pWorker); p; p=p->pNext) nAll++;
+
+  assert( nAll>nLevel );
+  nAll -= nLevel;
+  for(p=lsmDbSnapshotLevel(pDb->pWorker); p && nAll>0; p=p->pNext) nAll--;
+
+  memset(&ckpt, 0, sizeof(CkptBuffer));
+  ckpt.pEnv = pDb->pEnv;
+
+  ckptSetValue(&ckpt, 0, nLevel, &rc);
+  iOut = 1;
+  for(i=0; rc==LSM_OK && i<nLevel; i++){
+    ckptExportLevel(p, &ckpt, &iOut, &rc);
+    p = p->pNext;
+  }
+  assert( rc!=LSM_OK || p==0 );
+
+  if( rc==LSM_OK ){
+    ckptChangeEndianness(ckpt.aCkpt, iOut);
+    *paVal = (void *)ckpt.aCkpt;
+    *pnVal = iOut * sizeof(u32);
+  }else{
+    *pnVal = 0;
+    *paVal = 0;
+  }
+
+  return rc;
+}
+
+/*
+** Read the checkpoint id from meta-page pPg.
+*/
+static i64 ckptLoadId(MetaPage *pPg){
+  i64 ret = 0;
+  if( pPg ){
+    int nData;
+    u8 *aData = lsmFsMetaPageData(pPg, &nData);
+    ret = (((i64)lsmGetU32(&aData[CKPT_HDR_ID_MSW*4])) << 32) + 
+          ((i64)lsmGetU32(&aData[CKPT_HDR_ID_LSW*4]));
+  }
+  return ret;
+}
+
+/*
+** Return true if the buffer passed as an argument contains a valid
+** checkpoint.
+*/
+static int ckptChecksumOk(u32 *aCkpt){
+  u32 nCkpt = aCkpt[CKPT_HDR_NCKPT];
+  u32 cksum1;
+  u32 cksum2;
+
+  if( nCkpt<CKPT_HDR_NCKPT || nCkpt>(LSM_META_RW_PAGE_SIZE)/sizeof(u32) ){
+    return 0;
+  }
+  ckptChecksum(aCkpt, nCkpt, &cksum1, &cksum2);
+  return (cksum1==aCkpt[nCkpt-2] && cksum2==aCkpt[nCkpt-1]);
+}
+
+/*
+** Attempt to load a checkpoint from meta page iMeta.
+**
+** This function is a no-op if *pRc is set to any value other than LSM_OK
+** when it is called. If an error occurs, *pRc is set to an LSM error code
+** before returning.
+**
+** If no error occurs and the checkpoint is successfully loaded, copy it to
+** ShmHeader.aSnap1[] and ShmHeader.aSnap2[], and set ShmHeader.iMetaPage 
+** to indicate its origin. In this case return 1. Or, if the checkpoint 
+** cannot be loaded (because the checksum does not compute), return 0.
+*/
+static int ckptTryLoad(lsm_db *pDb, MetaPage *pPg, u32 iMeta, int *pRc){
+  int bLoaded = 0;                /* Return value */
+  if( *pRc==LSM_OK ){
+    int rc = LSM_OK;              /* Error code */
+    u32 *aCkpt = 0;               /* Pointer to buffer containing checkpoint */
+    u32 nCkpt;                    /* Number of elements in aCkpt[] */
+    int nData;                    /* Bytes of data in aData[] */
+    u8 *aData;                    /* Meta page data */
+   
+    aData = lsmFsMetaPageData(pPg, &nData);
+    nCkpt = (u32)lsmGetU32(&aData[CKPT_HDR_NCKPT*sizeof(u32)]);
+    if( nCkpt<=nData/sizeof(u32) && nCkpt>CKPT_HDR_NCKPT ){
+      aCkpt = (u32 *)lsmMallocRc(pDb->pEnv, nCkpt*sizeof(u32), &rc);
+    }
+    if( aCkpt ){
+      memcpy(aCkpt, aData, nCkpt*sizeof(u32));
+      ckptChangeEndianness(aCkpt, nCkpt);
+      if( ckptChecksumOk(aCkpt) ){
+        ShmHeader *pShm = pDb->pShmhdr;
+        memcpy(pShm->aSnap1, aCkpt, nCkpt*sizeof(u32));
+        memcpy(pShm->aSnap2, aCkpt, nCkpt*sizeof(u32));
+        memcpy(pDb->aSnapshot, aCkpt, nCkpt*sizeof(u32));
+        pShm->iMetaPage = iMeta;
+        bLoaded = 1;
+      }
+    }
+
+    lsmFree(pDb->pEnv, aCkpt);
+    *pRc = rc;
+  }
+  return bLoaded;
+}
+
+/*
+** Initialize the shared-memory header with an empty snapshot. This function
+** is called when no valid snapshot can be found in the database header.
+*/
+static void ckptLoadEmpty(lsm_db *pDb){
+  u32 aCkpt[] = {
+    0,                       /* CKPT_HDR_ID_MSW */
+    10,                      /* CKPT_HDR_ID_LSW */
+    0,                       /* CKPT_HDR_NCKPT */
+    LSM_COMPRESSION_EMPTY,   /* CKPT_HDR_CMPID */
+    0,                       /* CKPT_HDR_NBLOCK */
+    0,                       /* CKPT_HDR_BLKSZ */
+    0,                       /* CKPT_HDR_NLEVEL */
+    0,                       /* CKPT_HDR_PGSZ */
+    0,                       /* CKPT_HDR_NWRITE */
+    0, 0, 1234, 5678,        /* The log pointer and initial checksum */
+    0,0,0,0, 0,0,0,0,        /* The append list */
+    0,                       /* The redirected block list */
+    0,                       /* The free block list */
+    0, 0                     /* Space for checksum values */
+  };
+  u32 nCkpt = array_size(aCkpt);
+  ShmHeader *pShm = pDb->pShmhdr;
+
+  aCkpt[CKPT_HDR_NCKPT] = nCkpt;
+  aCkpt[CKPT_HDR_BLKSZ] = pDb->nDfltBlksz;
+  aCkpt[CKPT_HDR_PGSZ] = pDb->nDfltPgsz;
+  ckptChecksum(aCkpt, array_size(aCkpt), &aCkpt[nCkpt-2], &aCkpt[nCkpt-1]);
+
+  memcpy(pShm->aSnap1, aCkpt, nCkpt*sizeof(u32));
+  memcpy(pShm->aSnap2, aCkpt, nCkpt*sizeof(u32));
+  memcpy(pDb->aSnapshot, aCkpt, nCkpt*sizeof(u32));
+}
+
+/*
+** This function is called as part of database recovery to initialize the
+** ShmHeader.aSnap1[] and ShmHeader.aSnap2[] snapshots.
+*/
+int lsmCheckpointRecover(lsm_db *pDb){
+  int rc = LSM_OK;                /* Return Code */
+  i64 iId1;                       /* Id of checkpoint on meta-page 1 */
+  i64 iId2;                       /* Id of checkpoint on meta-page 2 */
+  int bLoaded = 0;                /* True once checkpoint has been loaded */
+  int cmp;                        /* True if (iId2>iId1) */
+  MetaPage *apPg[2] = {0, 0};     /* Meta-pages 1 and 2 */
+
+  rc = lsmFsMetaPageGet(pDb->pFS, 0, 1, &apPg[0]);
+  if( rc==LSM_OK ) rc = lsmFsMetaPageGet(pDb->pFS, 0, 2, &apPg[1]);
+
+  iId1 = ckptLoadId(apPg[0]);
+  iId2 = ckptLoadId(apPg[1]);
+  cmp = (iId2 > iId1);
+  bLoaded = ckptTryLoad(pDb, apPg[cmp?1:0], (cmp?2:1), &rc);
+  if( bLoaded==0 ){
+    bLoaded = ckptTryLoad(pDb, apPg[cmp?0:1], (cmp?1:2), &rc);
+  }
+
+  /* The database does not contain a valid checkpoint. Initialize the shared
+  ** memory header with an empty checkpoint.  */
+  if( bLoaded==0 ){
+    ckptLoadEmpty(pDb);
+  }
+
+  lsmFsMetaPageRelease(apPg[0]);
+  lsmFsMetaPageRelease(apPg[1]);
+
+  return rc;
+}
+
+/* 
+** Store the snapshot in pDb->aSnapshot[] in meta-page iMeta.
+*/
+int lsmCheckpointStore(lsm_db *pDb, int iMeta){
+  MetaPage *pPg = 0;
+  int rc;
+
+  assert( iMeta==1 || iMeta==2 );
+  rc = lsmFsMetaPageGet(pDb->pFS, 1, iMeta, &pPg);
+  if( rc==LSM_OK ){
+    u8 *aData;
+    int nData;
+    int nCkpt;
+
+    nCkpt = (int)pDb->aSnapshot[CKPT_HDR_NCKPT];
+    aData = lsmFsMetaPageData(pPg, &nData);
+    memcpy(aData, pDb->aSnapshot, nCkpt*sizeof(u32));
+    ckptChangeEndianness((u32 *)aData, nCkpt);
+    rc = lsmFsMetaPageRelease(pPg);
+  }
+      
+  return rc;
+}
+
+/*
+** Copy the current client snapshot from shared-memory to pDb->aSnapshot[].
+*/
+int lsmCheckpointLoad(lsm_db *pDb, int *piRead){
+  int nRem = LSM_ATTEMPTS_BEFORE_PROTOCOL;
+  ShmHeader *pShm = pDb->pShmhdr;
+  while( (nRem--)>0 ){
+    int nInt;
+
+    nInt = pShm->aSnap1[CKPT_HDR_NCKPT];
+    if( nInt<=(LSM_META_RW_PAGE_SIZE / sizeof(u32)) ){
+      memcpy(pDb->aSnapshot, pShm->aSnap1, nInt*sizeof(u32));
+      if( ckptChecksumOk(pDb->aSnapshot) ){
+        if( piRead ) *piRead = 1;
+        return LSM_OK;
+      }
+    }
+
+    nInt = pShm->aSnap2[CKPT_HDR_NCKPT];
+    if( nInt<=(LSM_META_RW_PAGE_SIZE / sizeof(u32)) ){
+      memcpy(pDb->aSnapshot, pShm->aSnap2, nInt*sizeof(u32));
+      if( ckptChecksumOk(pDb->aSnapshot) ){
+        if( piRead ) *piRead = 2;
+        return LSM_OK;
+      }
+    }
+
+    lsmShmBarrier(pDb);
+  }
+  return LSM_PROTOCOL_BKPT;
+}
+
+int lsmInfoCompressionId(lsm_db *db, u32 *piCmpId){
+  int rc;
+
+  assert( db->pClient==0 && db->pWorker==0 );
+  rc = lsmCheckpointLoad(db, 0);
+  if( rc==LSM_OK ){
+    *piCmpId = db->aSnapshot[CKPT_HDR_CMPID];
+  }
+
+  return rc;
+}
+
+int lsmCheckpointLoadOk(lsm_db *pDb, int iSnap){
+  u32 *aShm;
+  assert( iSnap==1 || iSnap==2 );
+  aShm = (iSnap==1) ? pDb->pShmhdr->aSnap1 : pDb->pShmhdr->aSnap2;
+  return (lsmCheckpointId(pDb->aSnapshot, 0)==lsmCheckpointId(aShm, 0) );
+}
+
+int lsmCheckpointClientCacheOk(lsm_db *pDb){
+  return ( pDb->pClient 
+        && pDb->pClient->iId==lsmCheckpointId(pDb->aSnapshot, 0)
+        && pDb->pClient->iId==lsmCheckpointId(pDb->pShmhdr->aSnap1, 0)
+        && pDb->pClient->iId==lsmCheckpointId(pDb->pShmhdr->aSnap2, 0)
+  );
+}
+
+int lsmCheckpointLoadWorker(lsm_db *pDb){
+  int rc;
+  ShmHeader *pShm = pDb->pShmhdr;
+  int nInt1;
+  int nInt2;
+
+  /* Must be holding the WORKER lock to do this. Or DMS2. */
+  assert( 
+      lsmShmAssertLock(pDb, LSM_LOCK_WORKER, LSM_LOCK_EXCL) 
+   || lsmShmAssertLock(pDb, LSM_LOCK_DMS1, LSM_LOCK_EXCL) 
+  );
+
+  /* Check that the two snapshots match. If not, repair them. */
+  nInt1 = pShm->aSnap1[CKPT_HDR_NCKPT];
+  nInt2 = pShm->aSnap2[CKPT_HDR_NCKPT];
+  if( nInt1!=nInt2 || memcmp(pShm->aSnap1, pShm->aSnap2, nInt2*sizeof(u32)) ){
+    if( ckptChecksumOk(pShm->aSnap1) ){
+      memcpy(pShm->aSnap2, pShm->aSnap1, sizeof(u32)*nInt1);
+    }else if( ckptChecksumOk(pShm->aSnap2) ){
+      memcpy(pShm->aSnap1, pShm->aSnap2, sizeof(u32)*nInt2);
+    }else{
+      return LSM_PROTOCOL_BKPT;
+    }
+  }
+
+  rc = lsmCheckpointDeserialize(pDb, 1, pShm->aSnap1, &pDb->pWorker);
+  if( pDb->pWorker ) pDb->pWorker->pDatabase = pDb->pDatabase;
+
+  if( rc==LSM_OK ){
+    rc = lsmCheckCompressionId(pDb, pDb->pWorker->iCmpId);
+  }
+
+#if 0
+  assert( rc!=LSM_OK || lsmFsIntegrityCheck(pDb) );
+#endif
+  return rc;
+}
+
+int lsmCheckpointDeserialize(
+  lsm_db *pDb, 
+  int bInclFreelist,              /* If true, deserialize free-list */
+  u32 *aCkpt, 
+  Snapshot **ppSnap
+){
+  int rc = LSM_OK;
+  Snapshot *pNew;
+
+  pNew = (Snapshot *)lsmMallocZeroRc(pDb->pEnv, sizeof(Snapshot), &rc);
+  if( rc==LSM_OK ){
+    Level *pLvl;
+    int nFree;
+    int i;
+    int nLevel = (int)aCkpt[CKPT_HDR_NLEVEL];
+    int iIn = CKPT_HDR_SIZE + CKPT_APPENDLIST_SIZE + CKPT_LOGPTR_SIZE;
+
+    pNew->iId = lsmCheckpointId(aCkpt, 0);
+    pNew->nBlock = aCkpt[CKPT_HDR_NBLOCK];
+    pNew->nWrite = aCkpt[CKPT_HDR_NWRITE];
+    rc = ckptLoadLevels(pDb, aCkpt, &iIn, nLevel, &pNew->pLevel);
+    pNew->iLogOff = lsmCheckpointLogOffset(aCkpt);
+    pNew->iCmpId = aCkpt[CKPT_HDR_CMPID];
+
+    /* Make a copy of the append-list */
+    for(i=0; i<LSM_APPLIST_SZ; i++){
+      u32 *a = &aCkpt[CKPT_HDR_SIZE + CKPT_LOGPTR_SIZE + i*2];
+      pNew->aiAppend[i] = ckptRead64(a);
+    }
+
+    /* Read the block-redirect list */
+    pNew->redirect.n = aCkpt[iIn++];
+    if( pNew->redirect.n ){
+      pNew->redirect.a = lsmMallocZeroRc(pDb->pEnv, 
+          (sizeof(struct RedirectEntry) * LSM_MAX_BLOCK_REDIRECTS), &rc
+      );
+      if( rc==LSM_OK ){
+        for(i=0; i<pNew->redirect.n; i++){
+          pNew->redirect.a[i].iFrom = aCkpt[iIn++];
+          pNew->redirect.a[i].iTo = aCkpt[iIn++];
+        }
+      }
+      for(pLvl=pNew->pLevel; pLvl->pNext; pLvl=pLvl->pNext);
+      if( pLvl->nRight ){
+        pLvl->aRhs[pLvl->nRight-1].pRedirect = &pNew->redirect;
+      }else{
+        pLvl->lhs.pRedirect = &pNew->redirect;
+      }
+    }
+
+    /* Copy the free-list */
+    if( rc==LSM_OK && bInclFreelist ){
+      nFree = aCkpt[iIn++];
+      if( nFree ){
+        pNew->freelist.aEntry = (FreelistEntry *)lsmMallocZeroRc(
+            pDb->pEnv, sizeof(FreelistEntry)*nFree, &rc
+        );
+        if( rc==LSM_OK ){
+          int j;
+          for(j=0; j<nFree; j++){
+            FreelistEntry *p = &pNew->freelist.aEntry[j];
+            p->iBlk = aCkpt[iIn++];
+            p->iId = ((i64)(aCkpt[iIn])<<32) + aCkpt[iIn+1];
+            iIn += 2;
+          }
+          pNew->freelist.nEntry = pNew->freelist.nAlloc = nFree;
+        }
+      }
+    }
+  }
+
+  if( rc!=LSM_OK ){
+    lsmFreeSnapshot(pDb->pEnv, pNew);
+    pNew = 0;
+  }
+
+  *ppSnap = pNew;
+  return rc;
+}
+
+/*
+** Connection pDb must be the worker connection in order to call this
+** function. It returns true if the database already contains the maximum
+** number of levels or false otherwise.
+**
+** This is used when flushing the in-memory tree to disk. If the database
+** is already full, then the caller should invoke lsm_work() or similar
+** until it is not full before creating a new level by flushing the in-memory
+** tree to disk. Limiting the number of levels in the database ensures that
+** the records describing them always fit within the checkpoint blob.
+*/
+int lsmDatabaseFull(lsm_db *pDb){
+  Level *p;
+  int nRhs = 0;
+
+  assert( lsmShmAssertLock(pDb, LSM_LOCK_WORKER, LSM_LOCK_EXCL) );
+  assert( pDb->pWorker );
+
+  for(p=pDb->pWorker->pLevel; p; p=p->pNext){
+    nRhs += (p->nRight ? p->nRight : 1);
+  }
+
+  return (nRhs >= LSM_MAX_RHS_SEGMENTS);
+}
+
+/*
+** The connection passed as the only argument is currently the worker
+** connection. Some work has been performed on the database by the connection,
+** but no new snapshot has been written into shared memory.
+**
+** This function updates the shared-memory worker and client snapshots with
+** the new snapshot produced by the work performed by pDb.
+**
+** If successful, LSM_OK is returned. Otherwise, if an error occurs, an LSM
+** error code is returned.
+*/
+int lsmCheckpointSaveWorker(lsm_db *pDb, int bFlush){
+  Snapshot *pSnap = pDb->pWorker;
+  ShmHeader *pShm = pDb->pShmhdr;
+  void *p = 0;
+  int n = 0;
+  int rc;
+
+  pSnap->iId++;
+  rc = ckptExportSnapshot(pDb, bFlush, pSnap->iId, 1, &p, &n);
+  if( rc!=LSM_OK ) return rc;
+  assert( ckptChecksumOk((u32 *)p) );
+
+  assert( n<=LSM_META_RW_PAGE_SIZE );
+  memcpy(pShm->aSnap2, p, n);
+  lsmShmBarrier(pDb);
+  memcpy(pShm->aSnap1, p, n);
+  lsmFree(pDb->pEnv, p);
+
+  /* assert( lsmFsIntegrityCheck(pDb) ); */
+  return LSM_OK;
+}
+
+/*
+** This function is used to determine the snapshot-id of the most recently
+** checkpointed snapshot. Variable ShmHeader.iMetaPage indicates which of
+** the two meta-pages said snapshot resides on (if any). 
+**
+** If successful, this function loads the snapshot from the meta-page, 
+** verifies its checksum and sets *piId to the snapshot-id before returning
+** LSM_OK. Or, if the checksum attempt fails, *piId is set to zero and
+** LSM_OK returned. If an error occurs, an LSM error code is returned and
+** the final value of *piId is undefined.
+*/
+int lsmCheckpointSynced(lsm_db *pDb, i64 *piId, i64 *piLog, u32 *pnWrite){
+  int rc = LSM_OK;
+  MetaPage *pPg;
+  u32 iMeta;
+
+  iMeta = pDb->pShmhdr->iMetaPage;
+  if( iMeta==1 || iMeta==2 ){
+    rc = lsmFsMetaPageGet(pDb->pFS, 0, iMeta, &pPg);
+    if( rc==LSM_OK ){
+      int nCkpt;
+      int nData;
+      u8 *aData; 
+
+      aData = lsmFsMetaPageData(pPg, &nData);
+      assert( nData==LSM_META_RW_PAGE_SIZE );
+      nCkpt = lsmGetU32(&aData[CKPT_HDR_NCKPT*sizeof(u32)]);
+      if( nCkpt<(LSM_META_RW_PAGE_SIZE/sizeof(u32)) ){
+        u32 *aCopy = lsmMallocRc(pDb->pEnv, sizeof(u32) * nCkpt, &rc);
+        if( aCopy ){
+          memcpy(aCopy, aData, nCkpt*sizeof(u32));
+          ckptChangeEndianness(aCopy, nCkpt);
+          if( ckptChecksumOk(aCopy) ){
+            if( piId ) *piId = lsmCheckpointId(aCopy, 0);
+            if( piLog ) *piLog = (lsmCheckpointLogOffset(aCopy) >> 1);
+            if( pnWrite ) *pnWrite = aCopy[CKPT_HDR_NWRITE];
+          }
+          lsmFree(pDb->pEnv, aCopy);
+        }
+      }
+      lsmFsMetaPageRelease(pPg);
+    }
+  }
+
+  if( (iMeta!=1 && iMeta!=2) || rc!=LSM_OK || pDb->pShmhdr->iMetaPage!=iMeta ){
+    if( piId ) *piId = 0;
+    if( piLog ) *piLog = 0;
+    if( pnWrite ) *pnWrite = 0;
+  }
+  return rc;
+}
+
+/*
+** Return the checkpoint-id of the checkpoint array passed as the first
+** argument to this function. If the second argument is true, then assume
+** that the checkpoint is made up of 32-bit big-endian integers. If it
+** is false, assume that the integers are in machine byte order.
+*/
+i64 lsmCheckpointId(u32 *aCkpt, int bDisk){
+  i64 iId;
+  if( bDisk ){
+    u8 *aData = (u8 *)aCkpt;
+    iId = (((i64)lsmGetU32(&aData[CKPT_HDR_ID_MSW*4])) << 32);
+    iId += ((i64)lsmGetU32(&aData[CKPT_HDR_ID_LSW*4]));
+  }else{
+    iId = ((i64)aCkpt[CKPT_HDR_ID_MSW] << 32) + (i64)aCkpt[CKPT_HDR_ID_LSW];
+  }
+  return iId;
+}
+
+u32 lsmCheckpointNBlock(u32 *aCkpt){
+  return aCkpt[CKPT_HDR_NBLOCK];
+}
+
+u32 lsmCheckpointNWrite(u32 *aCkpt, int bDisk){
+  if( bDisk ){
+    return lsmGetU32((u8 *)&aCkpt[CKPT_HDR_NWRITE]);
+  }else{
+    return aCkpt[CKPT_HDR_NWRITE];
+  }
+}
+
+i64 lsmCheckpointLogOffset(u32 *aCkpt){
+  return ((i64)aCkpt[CKPT_HDR_LO_MSW] << 32) + (i64)aCkpt[CKPT_HDR_LO_LSW];
+}
+
+int lsmCheckpointPgsz(u32 *aCkpt){ return (int)aCkpt[CKPT_HDR_PGSZ]; }
+
+int lsmCheckpointBlksz(u32 *aCkpt){ return (int)aCkpt[CKPT_HDR_BLKSZ]; }
+
+void lsmCheckpointLogoffset(
+  u32 *aCkpt,
+  DbLog *pLog
+){ 
+  pLog->aRegion[2].iStart = (lsmCheckpointLogOffset(aCkpt) >> 1);
+
+  pLog->cksum0 = aCkpt[CKPT_HDR_LO_CKSUM1];
+  pLog->cksum1 = aCkpt[CKPT_HDR_LO_CKSUM2];
+  pLog->iSnapshotId = lsmCheckpointId(aCkpt, 0);
+}
+
+void lsmCheckpointZeroLogoffset(lsm_db *pDb){
+  u32 nCkpt;
+
+  nCkpt = pDb->aSnapshot[CKPT_HDR_NCKPT];
+  assert( nCkpt>CKPT_HDR_NCKPT );
+  assert( nCkpt==pDb->pShmhdr->aSnap1[CKPT_HDR_NCKPT] );
+  assert( 0==memcmp(pDb->aSnapshot, pDb->pShmhdr->aSnap1, nCkpt*sizeof(u32)) );
+  assert( 0==memcmp(pDb->aSnapshot, pDb->pShmhdr->aSnap2, nCkpt*sizeof(u32)) );
+
+  pDb->aSnapshot[CKPT_HDR_LO_MSW] = 0;
+  pDb->aSnapshot[CKPT_HDR_LO_LSW] = 0;
+  ckptChecksum(pDb->aSnapshot, nCkpt, 
+      &pDb->aSnapshot[nCkpt-2], &pDb->aSnapshot[nCkpt-1]
+  );
+
+  memcpy(pDb->pShmhdr->aSnap1, pDb->aSnapshot, nCkpt*sizeof(u32));
+  memcpy(pDb->pShmhdr->aSnap2, pDb->aSnapshot, nCkpt*sizeof(u32));
+}
+
+/*
+** Set the output variable to the number of KB of data written into the
+** database file since the most recent checkpoint.
+*/
+int lsmCheckpointSize(lsm_db *db, int *pnKB){
+  int rc = LSM_OK;
+  u32 nSynced;
+
+  /* Set nSynced to the number of pages that had been written when the 
+  ** database was last checkpointed. */
+  rc = lsmCheckpointSynced(db, 0, 0, &nSynced);
+
+  if( rc==LSM_OK ){
+    u32 nPgsz = db->pShmhdr->aSnap1[CKPT_HDR_PGSZ];
+    u32 nWrite = db->pShmhdr->aSnap1[CKPT_HDR_NWRITE];
+    *pnKB = (int)(( ((i64)(nWrite - nSynced) * nPgsz) + 1023) / 1024);
+  }
+
+  return rc;
+}
diff --git a/ext/lsm1/lsm_file.c b/ext/lsm1/lsm_file.c
new file mode 100644
index 0000000000000000000000000000000000000000..fd78835bbb0be978a6d5460540847583d486f866
--- /dev/null
+++ b/ext/lsm1/lsm_file.c
@@ -0,0 +1,3311 @@
+/*
+** 2011-08-26
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** 
+** NORMAL DATABASE FILE FORMAT
+**
+** The following database file format concepts are used by the code in
+** this file to read and write the database file.
+**
+** Pages:
+**
+**   A database file is divided into pages. The first 8KB of the file consists
+**   of two 4KB meta-pages. The meta-page size is not configurable. The 
+**   remainder of the file is made up of database pages. The default database
+**   page size is 4KB. Database pages are aligned to page-size boundaries,
+**   so if the database page size is larger than 8KB there is a gap between
+**   the end of the meta pages and the start of the database pages.
+**
+**   Database pages are numbered based on their position in the file. Page N
+**   begins at byte offset ((N-1)*pgsz). This means that page 1 does not 
+**   exist - since it would always overlap with the meta pages. If the 
+**   page-size is (say) 512 bytes, then the first usable page in the database
+**   is page 33.
+**
+**   It is assumed that the first two meta pages and the data that follows
+**   them are located on different disk sectors. So that if a power failure 
+**   while writing to a meta page there is no risk of damage to the other
+**   meta page or any other part of the database file. TODO: This may need
+**   to be revisited.
+**
+** Blocks:
+**
+**   The database file is also divided into blocks. The default block size is
+**   1MB. When writing to the database file, an attempt is made to write data
+**   in contiguous block-sized chunks.
+**
+**   The first and last page on each block are special in that they are 4 
+**   bytes smaller than all other pages. This is because the last four bytes 
+**   of space on the first and last pages of each block are reserved for
+**   pointers to other blocks (i.e. a 32-bit block number).
+**
+** Runs:
+**
+**   A run is a sequence of pages that the upper layer uses to store a 
+**   sorted array of database keys (and accompanying data - values, FC 
+**   pointers and so on). Given a page within a run, it is possible to
+**   navigate to the next page in the run as follows:
+**
+**     a) if the current page is not the last in a block, the next page 
+**        in the run is located immediately after the current page, OR
+**
+**     b) if the current page is the last page in a block, the next page 
+**        in the run is the first page on the block identified by the
+**        block pointer stored in the last 4 bytes of the current block.
+**
+**   It is possible to navigate to the previous page in a similar fashion,
+**   using the block pointer embedded in the last 4 bytes of the first page
+**   of each block as required.
+**
+**   The upper layer is responsible for identifying by page number the 
+**   first and last page of any run that it needs to navigate - there are
+**   no "end-of-run" markers stored or identified by this layer. This is
+**   necessary as clients reading different database snapshots may access 
+**   different subsets of a run.
+**
+** THE LOG FILE 
+**
+** This file opens and closes the log file. But it does not contain any
+** logic related to the log file format. Instead, it exports the following
+** functions that are used by the code in lsm_log.c to read and write the
+** log file:
+**
+**     lsmFsOpenLog
+**     lsmFsWriteLog
+**     lsmFsSyncLog
+**     lsmFsReadLog
+**     lsmFsTruncateLog
+**     lsmFsCloseAndDeleteLog
+**
+** COMPRESSED DATABASE FILE FORMAT
+**
+** The compressed database file format is very similar to the normal format.
+** The file still begins with two 4KB meta-pages (which are never compressed).
+** It is still divided into blocks.
+**
+** The first and last four bytes of each block are reserved for 32-bit 
+** pointer values. Similar to the way four bytes are carved from the end of 
+** the first and last page of each block in uncompressed databases. From
+** the point of view of the upper layer, all pages are the same size - this
+** is different from the uncompressed format where the first and last pages
+** on each block are 4 bytes smaller than the others.
+**
+** Pages are stored in variable length compressed form, as follows:
+**
+**     * 3-byte size field containing the size of the compressed page image
+**       in bytes. The most significant bit of each byte of the size field
+**       is always set. The remaining 7 bits are used to store a 21-bit
+**       integer value (in big-endian order - the first byte in the field
+**       contains the most significant 7 bits). Since the maximum allowed 
+**       size of a compressed page image is (2^17 - 1) bytes, there are
+**       actually 4 unused bits in the size field.
+**
+**       In other words, if the size of the compressed page image is nSz,
+**       the header can be serialized as follows:
+**
+**         u8 aHdr[3]
+**         aHdr[0] = 0x80 | (u8)(nSz >> 14);
+**         aHdr[1] = 0x80 | (u8)(nSz >>  7);
+**         aHdr[2] = 0x80 | (u8)(nSz >>  0);
+**
+**     * Compressed page image.
+**
+**     * A second copy of the 3-byte record header.
+**
+** A page number is a byte offset into the database file. So the smallest
+** possible page number is 8192 (immediately after the two meta-pages).
+** The first and root page of a segment are identified by a page number
+** corresponding to the byte offset of the first byte in the corresponding
+** page record. The last page of a segment is identified by the byte offset
+** of the last byte in its record.
+**
+** Unlike uncompressed pages, compressed page records may span blocks.
+**
+** Sometimes, in order to avoid touching sectors that contain synced data
+** when writing, it is necessary to insert unused space between compressed
+** page records. This can be done as follows:
+**
+**     * For less than 6 bytes of empty space, the first and last byte
+**       of the free space contain the total number of free bytes. For
+**       example:
+**
+**         Block of 4 free bytes: 0x04 0x?? 0x?? 0x04
+**         Block of 2 free bytes: 0x02 0x02
+**         A single free byte:    0x01
+**
+**     * For 6 or more bytes of empty space, a record similar to a 
+**       compressed page record is added to the segment. A padding record
+**       is distinguished from a compressed page record by the most 
+**       significant bit of the second byte of the size field, which is
+**       cleared instead of set. 
+*/
+#include "lsmInt.h"
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+/*
+** File-system object. Each database connection allocates a single instance
+** of the following structure. It is used for all access to the database and
+** log files.
+**
+** The database file may be accessed via two methods - using mmap() or using
+** read() and write() calls. In the general case both methods are used - a
+** prefix of the file is mapped into memory and the remainder accessed using
+** read() and write(). This is helpful when accessing very large files (or
+** files that may grow very large during the lifetime of a database
+** connection) on systems with 32-bit address spaces. However, it also requires
+** that this object manage two distinct types of Page objects simultaneously -
+** those that carry pointers to the mapped file and those that carry arrays
+** populated by read() calls.
+**
+** pFree:
+**   The head of a singly-linked list that containing currently unused Page 
+**   structures suitable for use as mmap-page handles. Connected by the
+**   Page.pFreeNext pointers.
+**
+** pMapped:
+**   The head of a singly-linked list that contains all pages that currently
+**   carry pointers to the mapped region. This is used if the region is
+**   every remapped - the pointers carried by existing pages can be adjusted
+**   to account for the remapping. Connected by the Page.pMappedNext pointers.
+**
+** pWaiting:
+**   When the upper layer wishes to append a new b-tree page to a segment,
+**   it allocates a Page object that carries a malloc'd block of memory -
+**   regardless of the mmap-related configuration. The page is not assigned
+**   a page number at first. When the upper layer has finished constructing
+**   the page contents, it calls lsmFsPagePersist() to assign a page number
+**   to it. At this point it is likely that N pages have been written to the
+**   segment, the (N+1)th page is still outstanding and the b-tree page is
+**   assigned page number (N+2). To avoid writing page (N+2) before page 
+**   (N+1), the recently completed b-tree page is held in the singly linked
+**   list headed by pWaiting until page (N+1) has been written. 
+**
+**   Function lsmFsFlushWaiting() is responsible for eventually writing 
+**   waiting pages to disk.
+**
+** apHash/nHash:
+**   Hash table used to store all Page objects that carry malloc'd arrays,
+**   except those b-tree pages that have not yet been assigned page numbers.
+**   Once they have been assigned page numbers - they are added to this
+**   hash table.
+**
+**   Hash table overflow chains are connected using the Page.pHashNext
+**   pointers.
+**
+** pLruFirst, pLruLast:
+**   The first and last entries in a doubly-linked list of pages. This
+**   list contains all pages with malloc'd data that are present in the
+**   hash table and have a ref-count of zero.
+*/
+struct FileSystem {
+  lsm_db *pDb;                    /* Database handle that owns this object */
+  lsm_env *pEnv;                  /* Environment pointer */
+  char *zDb;                      /* Database file name */
+  char *zLog;                     /* Database file name */
+  int nMetasize;                  /* Size of meta pages in bytes */
+  int nMetaRwSize;                /* Read/written size of meta pages in bytes */
+  i64 nPagesize;                  /* Database page-size in bytes */
+  i64 nBlocksize;                 /* Database block-size in bytes */
+
+  /* r/w file descriptors for both files. */
+  LsmFile *pLsmFile;              /* Used after lsm_close() to link into list */
+  lsm_file *fdDb;                 /* Database file */
+  lsm_file *fdLog;                /* Log file */
+  int szSector;                   /* Database file sector size */
+
+  /* If this is a compressed database, a pointer to the compression methods.
+  ** For an uncompressed database, a NULL pointer.  */
+  lsm_compress *pCompress;
+  u8 *aIBuffer;                   /* Buffer to compress to */
+  u8 *aOBuffer;                   /* Buffer to uncompress from */
+  int nBuffer;                    /* Allocated size of above buffers in bytes */
+
+  /* mmap() page related things */
+  i64 nMapLimit;                  /* Maximum bytes of file to map */
+  void *pMap;                     /* Current mapping of database file */
+  i64 nMap;                       /* Bytes mapped at pMap */
+  Page *pFree;                    /* Unused Page structures */
+  Page *pMapped;                  /* List of Page structs that point to pMap */
+
+  /* Page cache parameters for non-mmap() pages */
+  int nCacheMax;                  /* Configured cache size (in pages) */
+  int nCacheAlloc;                /* Current cache size (in pages) */
+  Page *pLruFirst;                /* Head of the LRU list */
+  Page *pLruLast;                 /* Tail of the LRU list */
+  int nHash;                      /* Number of hash slots in hash table */
+  Page **apHash;                  /* nHash Hash slots */
+  Page *pWaiting;                 /* b-tree pages waiting to be written */
+
+  /* Statistics */
+  int nOut;                       /* Number of outstanding pages */
+  int nWrite;                     /* Total number of pages written */
+  int nRead;                      /* Total number of pages read */
+};
+
+/*
+** Database page handle.
+**
+** pSeg:
+**   When lsmFsSortedAppend() is called on a compressed database, the new
+**   page is not assigned a page number or location in the database file
+**   immediately. Instead, these are assigned by the lsmFsPagePersist() call
+**   right before it writes the compressed page image to disk.
+**
+**   The lsmFsSortedAppend() function sets the pSeg pointer to point to the
+**   segment that the new page will be a part of. It is unset by
+**   lsmFsPagePersist() after the page is written to disk.
+*/
+struct Page {
+  u8 *aData;                      /* Buffer containing page data */
+  int nData;                      /* Bytes of usable data at aData[] */
+  LsmPgno iPg;                    /* Page number */
+  int nRef;                       /* Number of outstanding references */
+  int flags;                      /* Combination of PAGE_XXX flags */
+  Page *pHashNext;                /* Next page in hash table slot */
+  Page *pLruNext;                 /* Next page in LRU list */
+  Page *pLruPrev;                 /* Previous page in LRU list */
+  FileSystem *pFS;                /* File system that owns this page */
+
+  /* Only used in compressed database mode: */
+  int nCompress;                  /* Compressed size (or 0 for uncomp. db) */
+  int nCompressPrev;              /* Compressed size of prev page */
+  Segment *pSeg;                  /* Segment this page will be written to */
+
+  /* Pointers for singly linked lists */
+  Page *pWaitingNext;             /* Next page in FileSystem.pWaiting list */
+  Page *pFreeNext;                /* Next page in FileSystem.pFree list */
+  Page *pMappedNext;              /* Next page in FileSystem.pMapped list */
+};
+
+/*
+** Meta-data page handle. There are two meta-data pages at the start of
+** the database file, each FileSystem.nMetasize bytes in size.
+*/
+struct MetaPage {
+  int iPg;                        /* Either 1 or 2 */
+  int bWrite;                     /* Write back to db file on release */
+  u8 *aData;                      /* Pointer to buffer */
+  FileSystem *pFS;                /* FileSystem that owns this page */
+};
+
+/* 
+** Values for LsmPage.flags 
+*/
+#define PAGE_DIRTY   0x00000001   /* Set if page is dirty */
+#define PAGE_FREE    0x00000002   /* Set if Page.aData requires lsmFree() */
+#define PAGE_HASPREV 0x00000004   /* Set if page is first on uncomp. block */
+
+/*
+** Number of pgsz byte pages omitted from the start of block 1. The start
+** of block 1 contains two 4096 byte meta pages (8192 bytes in total).
+*/
+#define BLOCK1_HDR_SIZE(pgsz)  LSM_MAX(1, 8192/(pgsz))
+
+/*
+** If NDEBUG is not defined, set a breakpoint in function lsmIoerrBkpt()
+** to catch IO errors (any error returned by a VFS method). 
+*/
+#ifndef NDEBUG
+static void lsmIoerrBkpt(void){
+  static int nErr = 0;
+  nErr++;
+}
+static int IOERR_WRAPPER(int rc){
+  if( rc!=LSM_OK ) lsmIoerrBkpt();
+  return rc;
+}
+#else
+# define IOERR_WRAPPER(rc) (rc)
+#endif
+
+#ifdef NDEBUG
+# define assert_lists_are_ok(x)
+#else
+static Page *fsPageFindInHash(FileSystem *pFS, LsmPgno iPg, int *piHash);
+
+static void assert_lists_are_ok(FileSystem *pFS){
+#if 0
+  Page *p;
+
+  assert( pFS->nMapLimit>=0 );
+
+  /* Check that all pages in the LRU list have nRef==0, pointers to buffers
+  ** in heap memory, and corresponding entries in the hash table.  */
+  for(p=pFS->pLruFirst; p; p=p->pLruNext){
+    assert( p==pFS->pLruFirst || p->pLruPrev!=0 );
+    assert( p==pFS->pLruLast || p->pLruNext!=0 );
+    assert( p->pLruPrev==0 || p->pLruPrev->pLruNext==p );
+    assert( p->pLruNext==0 || p->pLruNext->pLruPrev==p );
+    assert( p->nRef==0 );
+    assert( p->flags & PAGE_FREE );
+    assert( p==fsPageFindInHash(pFS, p->iPg, 0) );
+  }
+#endif
+}
+#endif
+
+/*
+** Wrappers around the VFS methods of the lsm_env object:
+**
+**     lsmEnvOpen()
+**     lsmEnvRead()
+**     lsmEnvWrite()
+**     lsmEnvSync()
+**     lsmEnvSectorSize()
+**     lsmEnvClose()
+**     lsmEnvTruncate()
+**     lsmEnvUnlink()
+**     lsmEnvRemap()
+*/
+int lsmEnvOpen(lsm_env *pEnv, const char *zFile, int flags, lsm_file **ppNew){
+  return pEnv->xOpen(pEnv, zFile, flags, ppNew);
+}
+
+static int lsmEnvRead(
+  lsm_env *pEnv, 
+  lsm_file *pFile, 
+  lsm_i64 iOff, 
+  void *pRead, 
+  int nRead
+){
+  return IOERR_WRAPPER( pEnv->xRead(pFile, iOff, pRead, nRead) );
+}
+
+static int lsmEnvWrite(
+  lsm_env *pEnv, 
+  lsm_file *pFile, 
+  lsm_i64 iOff, 
+  const void *pWrite, 
+  int nWrite
+){
+  return IOERR_WRAPPER( pEnv->xWrite(pFile, iOff, (void *)pWrite, nWrite) );
+}
+
+static int lsmEnvSync(lsm_env *pEnv, lsm_file *pFile){
+  return IOERR_WRAPPER( pEnv->xSync(pFile) );
+}
+
+static int lsmEnvSectorSize(lsm_env *pEnv, lsm_file *pFile){
+  return pEnv->xSectorSize(pFile);
+}
+
+int lsmEnvClose(lsm_env *pEnv, lsm_file *pFile){
+  return IOERR_WRAPPER( pEnv->xClose(pFile) );
+}
+
+static int lsmEnvTruncate(lsm_env *pEnv, lsm_file *pFile, lsm_i64 nByte){
+  return IOERR_WRAPPER( pEnv->xTruncate(pFile, nByte) );
+}
+
+static int lsmEnvUnlink(lsm_env *pEnv, const char *zDel){
+  return IOERR_WRAPPER( pEnv->xUnlink(pEnv, zDel) );
+}
+
+static int lsmEnvRemap(
+  lsm_env *pEnv, 
+  lsm_file *pFile, 
+  i64 szMin,
+  void **ppMap,
+  i64 *pszMap
+){
+  return pEnv->xRemap(pFile, szMin, ppMap, pszMap);
+}
+
+int lsmEnvLock(lsm_env *pEnv, lsm_file *pFile, int iLock, int eLock){
+  if( pFile==0 ) return LSM_OK;
+  return pEnv->xLock(pFile, iLock, eLock);
+}
+
+int lsmEnvTestLock(
+  lsm_env *pEnv, 
+  lsm_file *pFile, 
+  int iLock, 
+  int nLock, 
+  int eLock
+){
+  return pEnv->xTestLock(pFile, iLock, nLock, eLock);
+}
+
+int lsmEnvShmMap(
+  lsm_env *pEnv, 
+  lsm_file *pFile, 
+  int iChunk, 
+  int sz, 
+  void **ppOut
+){
+  return pEnv->xShmMap(pFile, iChunk, sz, ppOut);
+}
+
+void lsmEnvShmBarrier(lsm_env *pEnv){
+  pEnv->xShmBarrier();
+}
+
+void lsmEnvShmUnmap(lsm_env *pEnv, lsm_file *pFile, int bDel){
+  pEnv->xShmUnmap(pFile, bDel);
+}
+
+void lsmEnvSleep(lsm_env *pEnv, int nUs){
+  pEnv->xSleep(pEnv, nUs);
+}
+
+
+/*
+** Write the contents of string buffer pStr into the log file, starting at
+** offset iOff.
+*/
+int lsmFsWriteLog(FileSystem *pFS, i64 iOff, LsmString *pStr){
+  assert( pFS->fdLog );
+  return lsmEnvWrite(pFS->pEnv, pFS->fdLog, iOff, pStr->z, pStr->n);
+}
+
+/*
+** fsync() the log file.
+*/
+int lsmFsSyncLog(FileSystem *pFS){
+  assert( pFS->fdLog );
+  return lsmEnvSync(pFS->pEnv, pFS->fdLog);
+}
+
+/*
+** Read nRead bytes of data starting at offset iOff of the log file. Append
+** the results to string buffer pStr.
+*/
+int lsmFsReadLog(FileSystem *pFS, i64 iOff, int nRead, LsmString *pStr){
+  int rc;                         /* Return code */
+  assert( pFS->fdLog );
+  rc = lsmStringExtend(pStr, nRead);
+  if( rc==LSM_OK ){
+    rc = lsmEnvRead(pFS->pEnv, pFS->fdLog, iOff, &pStr->z[pStr->n], nRead);
+    pStr->n += nRead;
+  }
+  return rc;
+}
+
+/*
+** Truncate the log file to nByte bytes in size.
+*/
+int lsmFsTruncateLog(FileSystem *pFS, i64 nByte){
+  if( pFS->fdLog==0 ) return LSM_OK;
+  return lsmEnvTruncate(pFS->pEnv, pFS->fdLog, nByte);
+}
+
+/*
+** Truncate the db file to nByte bytes in size.
+*/
+int lsmFsTruncateDb(FileSystem *pFS, i64 nByte){
+  if( pFS->fdDb==0 ) return LSM_OK;
+  return lsmEnvTruncate(pFS->pEnv, pFS->fdDb, nByte);
+}
+
+/*
+** Close the log file. Then delete it from the file-system. This function
+** is called during database shutdown only.
+*/
+int lsmFsCloseAndDeleteLog(FileSystem *pFS){
+  char *zDel;
+
+  if( pFS->fdLog ){
+    lsmEnvClose(pFS->pEnv, pFS->fdLog );
+    pFS->fdLog = 0;
+  }
+
+  zDel = lsmMallocPrintf(pFS->pEnv, "%s-log", pFS->zDb);
+  if( zDel ){
+    lsmEnvUnlink(pFS->pEnv, zDel);
+    lsmFree(pFS->pEnv, zDel);
+  }
+  return LSM_OK;
+}
+
+/*
+** Return true if page iReal of the database should be accessed using mmap.
+** False otherwise.
+*/
+static int fsMmapPage(FileSystem *pFS, LsmPgno iReal){
+  return ((i64)iReal*pFS->nPagesize <= pFS->nMapLimit);
+}
+
+/*
+** Given that there are currently nHash slots in the hash table, return 
+** the hash key for file iFile, page iPg.
+*/
+static int fsHashKey(int nHash, LsmPgno iPg){
+  return (iPg % nHash);
+}
+
+/*
+** This is a helper function for lsmFsOpen(). It opens a single file on
+** disk (either the database or log file).
+*/
+static lsm_file *fsOpenFile(
+  FileSystem *pFS,                /* File system object */
+  int bReadonly,                  /* True to open this file read-only */
+  int bLog,                       /* True for log, false for db */
+  int *pRc                        /* IN/OUT: Error code */
+){
+  lsm_file *pFile = 0;
+  if( *pRc==LSM_OK ){
+    int flags = (bReadonly ? LSM_OPEN_READONLY : 0);
+    const char *zPath = (bLog ? pFS->zLog : pFS->zDb);
+
+    *pRc = lsmEnvOpen(pFS->pEnv, zPath, flags, &pFile);
+  }
+  return pFile;
+}
+
+/*
+** If it is not already open, this function opens the log file. It returns
+** LSM_OK if successful (or if the log file was already open) or an LSM
+** error code otherwise.
+**
+** The log file must be opened before any of the following may be called:
+**
+**     lsmFsWriteLog
+**     lsmFsSyncLog
+**     lsmFsReadLog
+*/
+int lsmFsOpenLog(lsm_db *db, int *pbOpen){
+  int rc = LSM_OK;
+  FileSystem *pFS = db->pFS;
+
+  if( 0==pFS->fdLog ){ 
+    pFS->fdLog = fsOpenFile(pFS, db->bReadonly, 1, &rc); 
+
+    if( rc==LSM_IOERR_NOENT && db->bReadonly ){
+      rc = LSM_OK;
+    }
+  }
+
+  if( pbOpen ) *pbOpen = (pFS->fdLog!=0);
+  return rc;
+}
+
+/*
+** Close the log file, if it is open.
+*/
+void lsmFsCloseLog(lsm_db *db){
+  FileSystem *pFS = db->pFS;
+  if( pFS->fdLog ){
+    lsmEnvClose(pFS->pEnv, pFS->fdLog);
+    pFS->fdLog = 0;
+  }
+}
+
+/*
+** Open a connection to a database stored within the file-system.
+**
+** If parameter bReadonly is true, then open a read-only file-descriptor
+** on the database file. It is possible that bReadonly will be false even
+** if the user requested that pDb be opened read-only. This is because the
+** file-descriptor may later on be recycled by a read-write connection.
+** If the db file can be opened for read-write access, it always is. Parameter
+** bReadonly is only ever true if it has already been determined that the
+** db can only be opened for read-only access.
+**
+** Return LSM_OK if successful or an lsm error code otherwise.
+*/
+int lsmFsOpen(
+  lsm_db *pDb,                    /* Database connection to open fd for */
+  const char *zDb,                /* Full path to database file */
+  int bReadonly                   /* True to open db file read-only */
+){
+  FileSystem *pFS;
+  int rc = LSM_OK;
+  int nDb = strlen(zDb);
+  int nByte;
+
+  assert( pDb->pFS==0 );
+  assert( pDb->pWorker==0 && pDb->pClient==0 );
+
+  nByte = sizeof(FileSystem) + nDb+1 + nDb+4+1;
+  pFS = (FileSystem *)lsmMallocZeroRc(pDb->pEnv, nByte, &rc);
+  if( pFS ){
+    LsmFile *pLsmFile;
+    pFS->zDb = (char *)&pFS[1];
+    pFS->zLog = &pFS->zDb[nDb+1];
+    pFS->nPagesize = LSM_DFLT_PAGE_SIZE;
+    pFS->nBlocksize = LSM_DFLT_BLOCK_SIZE;
+    pFS->nMetasize = LSM_META_PAGE_SIZE;
+    pFS->nMetaRwSize = LSM_META_RW_PAGE_SIZE;
+    pFS->pDb = pDb;
+    pFS->pEnv = pDb->pEnv;
+
+    /* Make a copy of the database and log file names. */
+    memcpy(pFS->zDb, zDb, nDb+1);
+    memcpy(pFS->zLog, zDb, nDb);
+    memcpy(&pFS->zLog[nDb], "-log", 5);
+
+    /* Allocate the hash-table here. At some point, it should be changed
+    ** so that it can grow dynamicly. */
+    pFS->nCacheMax = 2048*1024 / pFS->nPagesize;
+    pFS->nHash = 4096;
+    pFS->apHash = lsmMallocZeroRc(pDb->pEnv, sizeof(Page *) * pFS->nHash, &rc);
+
+    /* Open the database file */
+    pLsmFile = lsmDbRecycleFd(pDb);
+    if( pLsmFile ){
+      pFS->pLsmFile = pLsmFile;
+      pFS->fdDb = pLsmFile->pFile;
+      memset(pLsmFile, 0, sizeof(LsmFile));
+    }else{
+      pFS->pLsmFile = lsmMallocZeroRc(pDb->pEnv, sizeof(LsmFile), &rc);
+      if( rc==LSM_OK ){
+        pFS->fdDb = fsOpenFile(pFS, bReadonly, 0, &rc);
+      }
+    }
+
+    if( rc!=LSM_OK ){
+      lsmFsClose(pFS);
+      pFS = 0;
+    }else{
+      pFS->szSector = lsmEnvSectorSize(pFS->pEnv, pFS->fdDb);
+    }
+  }
+
+  pDb->pFS = pFS;
+  return rc;
+}
+
+/*
+** Configure the file-system object according to the current values of
+** the LSM_CONFIG_MMAP and LSM_CONFIG_SET_COMPRESSION options.
+*/
+int lsmFsConfigure(lsm_db *db){
+  FileSystem *pFS = db->pFS;
+  if( pFS ){
+    lsm_env *pEnv = pFS->pEnv;
+    Page *pPg;
+
+    assert( pFS->nOut==0 );
+    assert( pFS->pWaiting==0 );
+    assert( pFS->pMapped==0 );
+
+    /* Reset any compression/decompression buffers already allocated */
+    lsmFree(pEnv, pFS->aIBuffer);
+    lsmFree(pEnv, pFS->aOBuffer);
+    pFS->nBuffer = 0;
+
+    /* Unmap the file, if it is currently mapped */
+    if( pFS->pMap ){
+      lsmEnvRemap(pEnv, pFS->fdDb, -1, &pFS->pMap, &pFS->nMap);
+      pFS->nMapLimit = 0;
+    }
+
+    /* Free all allocated page structures */
+    pPg = pFS->pLruFirst;
+    while( pPg ){
+      Page *pNext = pPg->pLruNext;
+      assert( pPg->flags & PAGE_FREE );
+      lsmFree(pEnv, pPg->aData);
+      lsmFree(pEnv, pPg);
+      pPg = pNext;
+    }
+
+    pPg = pFS->pFree;
+    while( pPg ){
+      Page *pNext = pPg->pFreeNext;
+      lsmFree(pEnv, pPg);
+      pPg = pNext;
+    }
+
+    /* Zero pointers that point to deleted page objects */
+    pFS->nCacheAlloc = 0;
+    pFS->pLruFirst = 0;
+    pFS->pLruLast = 0;
+    pFS->pFree = 0;
+    if( pFS->apHash ){
+      memset(pFS->apHash, 0, pFS->nHash*sizeof(pFS->apHash[0]));
+    }
+
+    /* Configure the FileSystem object */
+    if( db->compress.xCompress ){
+      pFS->pCompress = &db->compress;
+      pFS->nMapLimit = 0;
+    }else{
+      pFS->pCompress = 0;
+      if( db->iMmap==1 ){
+        /* Unlimited */
+        pFS->nMapLimit = (i64)1 << 60;
+      }else{
+        /* iMmap is a limit in KB. Set nMapLimit to the same value in bytes. */
+        pFS->nMapLimit = (i64)db->iMmap * 1024;
+      }
+    }
+  }
+
+  return LSM_OK;
+}
+
+/*
+** Close and destroy a FileSystem object.
+*/
+void lsmFsClose(FileSystem *pFS){
+  if( pFS ){
+    Page *pPg;
+    lsm_env *pEnv = pFS->pEnv;
+
+    assert( pFS->nOut==0 );
+    pPg = pFS->pLruFirst;
+    while( pPg ){
+      Page *pNext = pPg->pLruNext;
+      if( pPg->flags & PAGE_FREE ) lsmFree(pEnv, pPg->aData);
+      lsmFree(pEnv, pPg);
+      pPg = pNext;
+    }
+
+    pPg = pFS->pFree;
+    while( pPg ){
+      Page *pNext = pPg->pFreeNext;
+      if( pPg->flags & PAGE_FREE ) lsmFree(pEnv, pPg->aData);
+      lsmFree(pEnv, pPg);
+      pPg = pNext;
+    }
+
+    if( pFS->fdDb ) lsmEnvClose(pFS->pEnv, pFS->fdDb );
+    if( pFS->fdLog ) lsmEnvClose(pFS->pEnv, pFS->fdLog );
+    lsmFree(pEnv, pFS->pLsmFile);
+    lsmFree(pEnv, pFS->apHash);
+    lsmFree(pEnv, pFS->aIBuffer);
+    lsmFree(pEnv, pFS->aOBuffer);
+    lsmFree(pEnv, pFS);
+  }
+}
+
+/*
+** This function is called when closing a database handle (i.e. lsm_close()) 
+** if there exist other connections to the same database within this process.
+** In that case the file-descriptor open on the database file is not closed
+** when the FileSystem object is destroyed, as this would cause any POSIX
+** locks held by the other connections to be silently dropped (see "man close"
+** for details). Instead, the file-descriptor is stored in a list by the
+** lsm_shared.c module until it is either closed or reused.
+**
+** This function returns a pointer to an object that can be linked into
+** the list described above. The returned object now 'owns' the database
+** file descriptr, so that when the FileSystem object is destroyed, it
+** will not be closed. 
+**
+** This function may be called at most once in the life-time of a 
+** FileSystem object. The results of any operations involving the database 
+** file descriptor are undefined once this function has been called.
+**
+** None of this is necessary on non-POSIX systems. But we do it anyway in
+** the name of using as similar code as possible on all platforms.
+*/
+LsmFile *lsmFsDeferClose(FileSystem *pFS){
+  LsmFile *p = pFS->pLsmFile;
+  assert( p->pNext==0 );
+  p->pFile = pFS->fdDb;
+  pFS->fdDb = 0;
+  pFS->pLsmFile = 0;
+  return p;
+}
+
+/*
+** Allocate a buffer and populate it with the output of the xFileid() 
+** method of the database file handle. If successful, set *ppId to point 
+** to the buffer and *pnId to the number of bytes in the buffer and return
+** LSM_OK. Otherwise, set *ppId and *pnId to zero and return an LSM
+** error code.
+*/
+int lsmFsFileid(lsm_db *pDb, void **ppId, int *pnId){
+  lsm_env *pEnv = pDb->pEnv;
+  FileSystem *pFS = pDb->pFS;
+  int rc;
+  int nId = 0;
+  void *pId;
+
+  rc = pEnv->xFileid(pFS->fdDb, 0, &nId);
+  pId = lsmMallocZeroRc(pEnv, nId, &rc);
+  if( rc==LSM_OK ) rc = pEnv->xFileid(pFS->fdDb, pId, &nId);
+
+  if( rc!=LSM_OK ){
+    lsmFree(pEnv, pId);
+    pId = 0;
+    nId = 0;
+  }
+
+  *ppId = pId;
+  *pnId = nId;
+  return rc;
+}
+
+/*
+** Return the nominal page-size used by this file-system. Actual pages
+** may be smaller or larger than this value.
+*/
+int lsmFsPageSize(FileSystem *pFS){
+  return pFS->nPagesize;
+}
+
+/*
+** Return the block-size used by this file-system.
+*/
+int lsmFsBlockSize(FileSystem *pFS){
+  return pFS->nBlocksize;
+}
+
+/*
+** Configure the nominal page-size used by this file-system. Actual 
+** pages may be smaller or larger than this value.
+*/
+void lsmFsSetPageSize(FileSystem *pFS, int nPgsz){
+  pFS->nPagesize = nPgsz;
+  pFS->nCacheMax = 2048*1024 / pFS->nPagesize;
+}
+
+/*
+** Configure the block-size used by this file-system. 
+*/
+void lsmFsSetBlockSize(FileSystem *pFS, int nBlocksize){
+  pFS->nBlocksize = nBlocksize;
+}
+
+/*
+** Return the page number of the first page on block iBlock. Blocks are
+** numbered starting from 1.
+**
+** For a compressed database, page numbers are byte offsets. The first
+** page on each block is the byte offset immediately following the 4-byte
+** "previous block" pointer at the start of each block.
+*/
+static LsmPgno fsFirstPageOnBlock(FileSystem *pFS, int iBlock){
+  LsmPgno iPg;
+  if( pFS->pCompress ){
+    if( iBlock==1 ){
+      iPg = pFS->nMetasize * 2 + 4;
+    }else{
+      iPg = pFS->nBlocksize * (LsmPgno)(iBlock-1) + 4;
+    }
+  }else{
+    const i64 nPagePerBlock = (pFS->nBlocksize / pFS->nPagesize);
+    if( iBlock==1 ){
+      iPg = 1 + ((pFS->nMetasize*2 + pFS->nPagesize - 1) / pFS->nPagesize);
+    }else{
+      iPg = 1 + (iBlock-1) * nPagePerBlock;
+    }
+  }
+  return iPg;
+}
+
+/*
+** Return the page number of the last page on block iBlock. Blocks are
+** numbered starting from 1.
+**
+** For a compressed database, page numbers are byte offsets. The first
+** page on each block is the byte offset of the byte immediately before 
+** the 4-byte "next block" pointer at the end of each block.
+*/
+static LsmPgno fsLastPageOnBlock(FileSystem *pFS, int iBlock){
+  if( pFS->pCompress ){
+    return pFS->nBlocksize * (LsmPgno)iBlock - 1 - 4;
+  }else{
+    const int nPagePerBlock = (pFS->nBlocksize / pFS->nPagesize);
+    return iBlock * nPagePerBlock;
+  }
+}
+
+/*
+** Return the block number of the block that page iPg is located on. 
+** Blocks are numbered starting from 1.
+*/
+static int fsPageToBlock(FileSystem *pFS, LsmPgno iPg){
+  if( pFS->pCompress ){
+    return (int)((iPg / pFS->nBlocksize) + 1);
+  }else{
+    return (int)(1 + ((iPg-1) / (pFS->nBlocksize / pFS->nPagesize)));
+  }
+}
+
+/*
+** Return true if page iPg is the last page on its block.
+**
+** This function is only called in non-compressed database mode.
+*/
+static int fsIsLast(FileSystem *pFS, LsmPgno iPg){
+  const int nPagePerBlock = (pFS->nBlocksize / pFS->nPagesize);
+  assert( !pFS->pCompress );
+  return ( iPg && (iPg % nPagePerBlock)==0 );
+}
+
+/*
+** Return true if page iPg is the first page on its block.
+**
+** This function is only called in non-compressed database mode.
+*/
+static int fsIsFirst(FileSystem *pFS, LsmPgno iPg){
+  const int nPagePerBlock = (pFS->nBlocksize / pFS->nPagesize);
+  assert( !pFS->pCompress );
+  return ( (iPg % nPagePerBlock)==1
+        || (iPg<nPagePerBlock && iPg==fsFirstPageOnBlock(pFS, 1))
+  );
+}
+
+/*
+** Given a page reference, return a pointer to the buffer containing the 
+** pages contents. If parameter pnData is not NULL, set *pnData to the size
+** of the buffer in bytes before returning.
+*/
+u8 *lsmFsPageData(Page *pPage, int *pnData){
+  if( pnData ){
+    *pnData = pPage->nData;
+  }
+  return pPage->aData;
+}
+
+/*
+** Return the page number of a page.
+*/
+LsmPgno lsmFsPageNumber(Page *pPage){
+  /* assert( (pPage->flags & PAGE_DIRTY)==0 ); */
+  return pPage ? pPage->iPg : 0;
+}
+
+/*
+** Page pPg is currently part of the LRU list belonging to pFS. Remove
+** it from the list. pPg->pLruNext and pPg->pLruPrev are cleared by this
+** operation.
+*/
+static void fsPageRemoveFromLru(FileSystem *pFS, Page *pPg){
+  assert( pPg->pLruNext || pPg==pFS->pLruLast );
+  assert( pPg->pLruPrev || pPg==pFS->pLruFirst );
+  if( pPg->pLruNext ){
+    pPg->pLruNext->pLruPrev = pPg->pLruPrev;
+  }else{
+    pFS->pLruLast = pPg->pLruPrev;
+  }
+  if( pPg->pLruPrev ){
+    pPg->pLruPrev->pLruNext = pPg->pLruNext;
+  }else{
+    pFS->pLruFirst = pPg->pLruNext;
+  }
+  pPg->pLruPrev = 0;
+  pPg->pLruNext = 0;
+}
+
+/*
+** Page pPg is not currently part of the LRU list belonging to pFS. Add it.
+*/
+static void fsPageAddToLru(FileSystem *pFS, Page *pPg){
+  assert( pPg->pLruNext==0 && pPg->pLruPrev==0 );
+  pPg->pLruPrev = pFS->pLruLast;
+  if( pPg->pLruPrev ){
+    pPg->pLruPrev->pLruNext = pPg;
+  }else{
+    pFS->pLruFirst = pPg;
+  }
+  pFS->pLruLast = pPg;
+}
+
+/*
+** Page pPg is currently stored in the apHash/nHash hash table. Remove it.
+*/
+static void fsPageRemoveFromHash(FileSystem *pFS, Page *pPg){
+  int iHash;
+  Page **pp;
+
+  iHash = fsHashKey(pFS->nHash, pPg->iPg);
+  for(pp=&pFS->apHash[iHash]; *pp!=pPg; pp=&(*pp)->pHashNext);
+  *pp = pPg->pHashNext;
+  pPg->pHashNext = 0;
+}
+
+/*
+** Free a Page object allocated by fsPageBuffer().
+*/
+static void fsPageBufferFree(Page *pPg){
+  pPg->pFS->nCacheAlloc--;
+  lsmFree(pPg->pFS->pEnv, pPg->aData);
+  lsmFree(pPg->pFS->pEnv, pPg);
+}
+
+
+/*
+** Purge the cache of all non-mmap pages with nRef==0.
+*/
+void lsmFsPurgeCache(FileSystem *pFS){
+  Page *pPg;
+
+  pPg = pFS->pLruFirst;
+  while( pPg ){
+    Page *pNext = pPg->pLruNext;
+    assert( pPg->flags & PAGE_FREE );
+    fsPageRemoveFromHash(pFS, pPg);
+    fsPageBufferFree(pPg);
+    pPg = pNext;
+  }
+  pFS->pLruFirst = 0;
+  pFS->pLruLast = 0;
+
+  assert( pFS->nCacheAlloc<=pFS->nOut && pFS->nCacheAlloc>=0 );
+}
+
+/*
+** Search the hash-table for page iPg. If an entry is round, return a pointer
+** to it. Otherwise, return NULL.
+**
+** Either way, if argument piHash is not NULL set *piHash to the hash slot
+** number that page iPg would be stored in before returning.
+*/
+static Page *fsPageFindInHash(FileSystem *pFS, LsmPgno iPg, int *piHash){
+  Page *p;                        /* Return value */
+  int iHash = fsHashKey(pFS->nHash, iPg);
+
+  if( piHash ) *piHash = iHash;
+  for(p=pFS->apHash[iHash]; p; p=p->pHashNext){
+    if( p->iPg==iPg) break;
+  }
+  return p;
+}
+
+/*
+** Allocate and return a non-mmap Page object. If there are already 
+** nCacheMax such Page objects outstanding, try to recycle an existing 
+** Page instead.
+*/
+static int fsPageBuffer(
+  FileSystem *pFS, 
+  Page **ppOut
+){
+  int rc = LSM_OK;
+  Page *pPage = 0;
+  if( pFS->pLruFirst==0 || pFS->nCacheAlloc<pFS->nCacheMax ){
+    /* Allocate a new Page object */
+    pPage = lsmMallocZero(pFS->pEnv, sizeof(Page));
+    if( !pPage ){
+      rc = LSM_NOMEM_BKPT;
+    }else{
+      pPage->aData = (u8 *)lsmMalloc(pFS->pEnv, pFS->nPagesize);
+      if( !pPage->aData ){
+        lsmFree(pFS->pEnv, pPage);
+        rc = LSM_NOMEM_BKPT;
+        pPage = 0;
+      }else{
+        pFS->nCacheAlloc++;
+      }
+    }
+  }else{
+    /* Reuse an existing Page object */
+    u8 *aData;
+    pPage = pFS->pLruFirst;
+    aData = pPage->aData;
+    fsPageRemoveFromLru(pFS, pPage);
+    fsPageRemoveFromHash(pFS, pPage);
+
+    memset(pPage, 0, sizeof(Page));
+    pPage->aData = aData;
+  }
+
+  if( pPage ){
+    pPage->flags = PAGE_FREE;
+  }
+  *ppOut = pPage;
+  return rc;
+}
+
+/*
+** Assuming *pRc is initially LSM_OK, attempt to ensure that the 
+** memory-mapped region is at least iSz bytes in size. If it is not already,
+** iSz bytes in size, extend it and update the pointers associated with any
+** outstanding Page objects.
+**
+** If *pRc is not LSM_OK when this function is called, it is a no-op. 
+** Otherwise, *pRc is set to an lsm error code if an error occurs, or
+** left unmodified otherwise.
+**
+** This function is never called in compressed database mode.
+*/
+static void fsGrowMapping(
+  FileSystem *pFS,                /* File system object */
+  i64 iSz,                        /* Minimum size to extend mapping to */
+  int *pRc                        /* IN/OUT: Error code */
+){
+  assert( PAGE_HASPREV==4 );
+
+  if( *pRc==LSM_OK && iSz>pFS->nMap ){
+    int rc;
+    u8 *aOld = pFS->pMap;
+    rc = lsmEnvRemap(pFS->pEnv, pFS->fdDb, iSz, &pFS->pMap, &pFS->nMap);
+    if( rc==LSM_OK && pFS->pMap!=aOld ){
+      Page *pFix;
+      i64 iOff = (u8 *)pFS->pMap - aOld;
+      for(pFix=pFS->pMapped; pFix; pFix=pFix->pMappedNext){
+        pFix->aData += iOff;
+      }
+      lsmSortedRemap(pFS->pDb);
+    }
+    *pRc = rc;
+  }
+}
+
+/*
+** If it is mapped, unmap the database file.
+*/
+int lsmFsUnmap(FileSystem *pFS){
+  int rc = LSM_OK;
+  if( pFS ){
+    rc = lsmEnvRemap(pFS->pEnv, pFS->fdDb, -1, &pFS->pMap, &pFS->nMap);
+  }
+  return rc;
+}
+
+/*
+** fsync() the database file.
+*/
+int lsmFsSyncDb(FileSystem *pFS, int nBlock){
+  return lsmEnvSync(pFS->pEnv, pFS->fdDb);
+}
+
+/*
+** If block iBlk has been redirected according to the redirections in the
+** object passed as the first argument, return the destination block to
+** which it is redirected. Otherwise, return a copy of iBlk.
+*/
+static int fsRedirectBlock(Redirect *p, int iBlk){
+  if( p ){
+    int i;
+    for(i=0; i<p->n; i++){
+      if( iBlk==p->a[i].iFrom ) return p->a[i].iTo;
+    }
+  }
+  assert( iBlk!=0 );
+  return iBlk;
+}
+
+/*
+** If page iPg has been redirected according to the redirections in the
+** object passed as the second argument, return the destination page to
+** which it is redirected. Otherwise, return a copy of iPg.
+*/
+LsmPgno lsmFsRedirectPage(FileSystem *pFS, Redirect *pRedir, LsmPgno iPg){
+  LsmPgno iReal = iPg;
+
+  if( pRedir ){
+    const int nPagePerBlock = (
+        pFS->pCompress ? pFS->nBlocksize : (pFS->nBlocksize / pFS->nPagesize)
+    );
+    int iBlk = fsPageToBlock(pFS, iPg);
+    int i;
+    for(i=0; i<pRedir->n; i++){
+      int iFrom = pRedir->a[i].iFrom;
+      if( iFrom>iBlk ) break;
+      if( iFrom==iBlk ){
+        int iTo = pRedir->a[i].iTo;
+        iReal = iPg - (LsmPgno)(iFrom - iTo) * nPagePerBlock;
+        if( iTo==1 ){
+          iReal += (fsFirstPageOnBlock(pFS, 1)-1);
+        }
+        break;
+      }
+    }
+  }
+
+  assert( iReal!=0 );
+  return iReal;
+}
+
+/* Required by the circular fsBlockNext<->fsPageGet dependency. */
+static int fsPageGet(FileSystem *, Segment *, LsmPgno, int, Page **, int *);
+
+/*
+** Parameter iBlock is a database file block. This function reads the value 
+** stored in the blocks "next block" pointer and stores it in *piNext.
+** LSM_OK is returned if everything is successful, or an LSM error code
+** otherwise.
+*/
+static int fsBlockNext(
+  FileSystem *pFS,                /* File-system object handle */
+  Segment *pSeg,                  /* Use this segment for block redirects */
+  int iBlock,                     /* Read field from this block */
+  int *piNext                     /* OUT: Next block in linked list */
+){
+  int rc;
+  int iRead;                      /* Read block from here */
+  
+  if( pSeg ){
+    iRead = fsRedirectBlock(pSeg->pRedirect, iBlock);
+  }else{
+    iRead = iBlock;
+  }
+
+  assert( pFS->nMapLimit==0 || pFS->pCompress==0 );
+  if( pFS->pCompress ){
+    i64 iOff;                     /* File offset to read data from */
+    u8 aNext[4];                  /* 4-byte pointer read from db file */
+
+    iOff = (i64)iRead * pFS->nBlocksize - sizeof(aNext);
+    rc = lsmEnvRead(pFS->pEnv, pFS->fdDb, iOff, aNext, sizeof(aNext));
+    if( rc==LSM_OK ){
+      *piNext = (int)lsmGetU32(aNext);
+    }
+  }else{
+    const int nPagePerBlock = (pFS->nBlocksize / pFS->nPagesize);
+    Page *pLast;
+    rc = fsPageGet(pFS, 0, iRead*nPagePerBlock, 0, &pLast, 0);
+    if( rc==LSM_OK ){
+      *piNext = lsmGetU32(&pLast->aData[pFS->nPagesize-4]);
+      lsmFsPageRelease(pLast);
+    }
+  }
+
+  if( pSeg ){
+    *piNext = fsRedirectBlock(pSeg->pRedirect, *piNext);
+  }
+  return rc;
+}
+
+/*
+** Return the page number of the last page on the same block as page iPg.
+*/
+LsmPgno fsLastPageOnPagesBlock(FileSystem *pFS, LsmPgno iPg){
+  return fsLastPageOnBlock(pFS, fsPageToBlock(pFS, iPg));
+}
+
+/*
+** Read nData bytes of data from offset iOff of the database file into
+** buffer aData. If this means reading past the end of a block, follow
+** the block pointer to the next block and continue reading.
+**
+** Offset iOff is an absolute offset - not subject to any block redirection.
+** However any block pointer followed is. Use pSeg->pRedirect in this case.
+**
+** This function is only called in compressed database mode.
+*/
+static int fsReadData(
+  FileSystem *pFS,                /* File-system handle */
+  Segment *pSeg,                  /* Block redirection */
+  i64 iOff,                       /* Read data from this offset */
+  u8 *aData,                      /* Buffer to read data into */
+  int nData                       /* Number of bytes to read */
+){
+  i64 iEob;                       /* End of block */
+  int nRead;
+  int rc;
+
+  assert( pFS->pCompress );
+
+  iEob = fsLastPageOnPagesBlock(pFS, iOff) + 1;
+  nRead = (int)LSM_MIN(iEob - iOff, nData);
+
+  rc = lsmEnvRead(pFS->pEnv, pFS->fdDb, iOff, aData, nRead);
+  if( rc==LSM_OK && nRead!=nData ){
+    int iBlk;
+
+    rc = fsBlockNext(pFS, pSeg, fsPageToBlock(pFS, iOff), &iBlk);
+    if( rc==LSM_OK ){
+      i64 iOff2 = fsFirstPageOnBlock(pFS, iBlk);
+      rc = lsmEnvRead(pFS->pEnv, pFS->fdDb, iOff2, &aData[nRead], nData-nRead);
+    }
+  }
+
+  return rc;
+}
+
+/*
+** Parameter iBlock is a database file block. This function reads the value 
+** stored in the blocks "previous block" pointer and stores it in *piPrev.
+** LSM_OK is returned if everything is successful, or an LSM error code
+** otherwise.
+*/
+static int fsBlockPrev(
+  FileSystem *pFS,                /* File-system object handle */
+  Segment *pSeg,                  /* Use this segment for block redirects */
+  int iBlock,                     /* Read field from this block */
+  int *piPrev                     /* OUT: Previous block in linked list */
+){
+  int rc = LSM_OK;                /* Return code */
+
+  assert( pFS->nMapLimit==0 || pFS->pCompress==0 );
+  assert( iBlock>0 );
+
+  if( pFS->pCompress ){
+    i64 iOff = fsFirstPageOnBlock(pFS, iBlock) - 4;
+    u8 aPrev[4];                  /* 4-byte pointer read from db file */
+    rc = lsmEnvRead(pFS->pEnv, pFS->fdDb, iOff, aPrev, sizeof(aPrev));
+    if( rc==LSM_OK ){
+      Redirect *pRedir = (pSeg ? pSeg->pRedirect : 0);
+      *piPrev = fsRedirectBlock(pRedir, (int)lsmGetU32(aPrev));
+    }
+  }else{
+    assert( 0 );
+  }
+  return rc;
+}
+
+/*
+** Encode and decode routines for record size fields.
+*/
+static void putRecordSize(u8 *aBuf, int nByte, int bFree){
+  aBuf[0] = (u8)(nByte >> 14) | 0x80;
+  aBuf[1] = ((u8)(nByte >>  7) & 0x7F) | (bFree ? 0x00 : 0x80);
+  aBuf[2] = (u8)nByte | 0x80;
+}
+static int getRecordSize(u8 *aBuf, int *pbFree){
+  int nByte;
+  nByte  = (aBuf[0] & 0x7F) << 14;
+  nByte += (aBuf[1] & 0x7F) << 7;
+  nByte += (aBuf[2] & 0x7F);
+  *pbFree = !(aBuf[1] & 0x80);
+  return nByte;
+}
+
+/*
+** Subtract iSub from database file offset iOff and set *piRes to the
+** result. If doing so means passing the start of a block, follow the
+** block pointer stored in the first 4 bytes of the block.
+**
+** Offset iOff is an absolute offset - not subject to any block redirection.
+** However any block pointer followed is. Use pSeg->pRedirect in this case.
+**
+** Return LSM_OK if successful or an lsm error code if an error occurs.
+*/
+static int fsSubtractOffset(
+  FileSystem *pFS, 
+  Segment *pSeg,
+  i64 iOff, 
+  int iSub, 
+  i64 *piRes
+){
+  i64 iStart;
+  int iBlk = 0;
+  int rc;
+
+  assert( pFS->pCompress );
+
+  iStart = fsFirstPageOnBlock(pFS, fsPageToBlock(pFS, iOff));
+  if( (iOff-iSub)>=iStart ){
+    *piRes = (iOff-iSub);
+    return LSM_OK;
+  }
+
+  rc = fsBlockPrev(pFS, pSeg, fsPageToBlock(pFS, iOff), &iBlk);
+  *piRes = fsLastPageOnBlock(pFS, iBlk) - iSub + (iOff - iStart + 1);
+  return rc;
+}
+
+/*
+** Add iAdd to database file offset iOff and set *piRes to the
+** result. If doing so means passing the end of a block, follow the
+** block pointer stored in the last 4 bytes of the block.
+**
+** Offset iOff is an absolute offset - not subject to any block redirection.
+** However any block pointer followed is. Use pSeg->pRedirect in this case.
+**
+** Return LSM_OK if successful or an lsm error code if an error occurs.
+*/
+static int fsAddOffset(
+  FileSystem *pFS, 
+  Segment *pSeg,
+  i64 iOff, 
+  int iAdd, 
+  i64 *piRes
+){
+  i64 iEob;
+  int iBlk;
+  int rc;
+
+  assert( pFS->pCompress );
+
+  iEob = fsLastPageOnPagesBlock(pFS, iOff);
+  if( (iOff+iAdd)<=iEob ){
+    *piRes = (iOff+iAdd);
+    return LSM_OK;
+  }
+
+  rc = fsBlockNext(pFS, pSeg, fsPageToBlock(pFS, iOff), &iBlk);
+  *piRes = fsFirstPageOnBlock(pFS, iBlk) + iAdd - (iEob - iOff + 1);
+  return rc;
+}
+
+/*
+** If it is not already allocated, allocate either the FileSystem.aOBuffer (if
+** bWrite is true) or the FileSystem.aIBuffer (if bWrite is false). Return
+** LSM_OK if successful if the attempt to allocate memory fails.
+*/
+static int fsAllocateBuffer(FileSystem *pFS, int bWrite){
+  u8 **pp;                        /* Pointer to either aIBuffer or aOBuffer */
+
+  assert( pFS->pCompress );
+
+  /* If neither buffer has been allocated, figure out how large they
+  ** should be. Store this value in FileSystem.nBuffer.  */
+  if( pFS->nBuffer==0 ){
+    assert( pFS->aIBuffer==0 && pFS->aOBuffer==0 );
+    pFS->nBuffer = pFS->pCompress->xBound(pFS->pCompress->pCtx, pFS->nPagesize);
+    if( pFS->nBuffer<(pFS->szSector+6) ){
+      pFS->nBuffer = pFS->szSector+6;
+    }
+  }
+
+  pp = (bWrite ? &pFS->aOBuffer : &pFS->aIBuffer);
+  if( *pp==0 ){
+    *pp = lsmMalloc(pFS->pEnv, LSM_MAX(pFS->nBuffer, pFS->nPagesize));
+    if( *pp==0 ) return LSM_NOMEM_BKPT;
+  }
+
+  return LSM_OK;
+}
+
+/*
+** This function is only called in compressed database mode. It reads and
+** uncompresses the compressed data for page pPg from the database and
+** populates the pPg->aData[] buffer and pPg->nCompress field.
+**
+** It is possible that instead of a page record, there is free space
+** at offset pPg->iPgno. In this case no data is read from the file, but
+** output variable *pnSpace is set to the total number of free bytes.
+**
+** LSM_OK is returned if successful, or an LSM error code otherwise.
+*/
+static int fsReadPagedata(
+  FileSystem *pFS,                /* File-system handle */
+  Segment *pSeg,                  /* pPg is part of this segment */
+  Page *pPg,                      /* Page to read and uncompress data for */
+  int *pnSpace                    /* OUT: Total bytes of free space */
+){
+  lsm_compress *p = pFS->pCompress;
+  i64 iOff = pPg->iPg;
+  u8 aSz[3];
+  int rc;
+
+  assert( p && pPg->nCompress==0 );
+
+  if( fsAllocateBuffer(pFS, 0) ) return LSM_NOMEM;
+
+  rc = fsReadData(pFS, pSeg, iOff, aSz, sizeof(aSz));
+
+  if( rc==LSM_OK ){
+    int bFree;
+    if( aSz[0] & 0x80 ){
+      pPg->nCompress = (int)getRecordSize(aSz, &bFree);
+    }else{
+      pPg->nCompress = (int)aSz[0] - sizeof(aSz)*2;
+      bFree = 1;
+    }
+    if( bFree ){
+      if( pnSpace ){
+        *pnSpace = pPg->nCompress + sizeof(aSz)*2;
+      }else{
+        rc = LSM_CORRUPT_BKPT;
+      }
+    }else{
+      rc = fsAddOffset(pFS, pSeg, iOff, 3, &iOff);
+      if( rc==LSM_OK ){
+        if( pPg->nCompress>pFS->nBuffer ){
+          rc = LSM_CORRUPT_BKPT;
+        }else{
+          rc = fsReadData(pFS, pSeg, iOff, pFS->aIBuffer, pPg->nCompress);
+        }
+        if( rc==LSM_OK ){
+          int n = pFS->nPagesize;
+          rc = p->xUncompress(p->pCtx, 
+              (char *)pPg->aData, &n, 
+              (const char *)pFS->aIBuffer, pPg->nCompress
+          );
+          if( rc==LSM_OK && n!=pPg->pFS->nPagesize ){
+            rc = LSM_CORRUPT_BKPT;
+          }
+        }
+      }
+    }
+  }
+  return rc;
+}
+
+/*
+** Return a handle for a database page.
+**
+** If this file-system object is accessing a compressed database it may be
+** that there is no page record at database file offset iPg. Instead, there
+** may be a free space record. In this case, set *ppPg to NULL and *pnSpace
+** to the total number of free bytes before returning.
+**
+** If no error occurs, LSM_OK is returned. Otherwise, an lsm error code.
+*/
+static int fsPageGet(
+  FileSystem *pFS,                /* File-system handle */
+  Segment *pSeg,                  /* Block redirection to use (or NULL) */
+  LsmPgno iPg,                    /* Page id */
+  int noContent,                  /* True to not load content from disk */
+  Page **ppPg,                    /* OUT: New page handle */
+  int *pnSpace                    /* OUT: Bytes of free space */
+){
+  Page *p;
+  int iHash;
+  int rc = LSM_OK;
+
+  /* In most cases iReal is the same as iPg. Except, if pSeg->pRedirect is 
+  ** not NULL, and the block containing iPg has been redirected, then iReal
+  ** is the page number after redirection.  */
+  LsmPgno iReal = lsmFsRedirectPage(pFS, (pSeg ? pSeg->pRedirect : 0), iPg);
+
+  assert_lists_are_ok(pFS);
+  assert( iPg>=fsFirstPageOnBlock(pFS, 1) );
+  assert( iReal>=fsFirstPageOnBlock(pFS, 1) );
+  *ppPg = 0;
+
+  /* Search the hash-table for the page */
+  p = fsPageFindInHash(pFS, iReal, &iHash);
+
+  if( p ){
+    assert( p->flags & PAGE_FREE );
+    if( p->nRef==0 ) fsPageRemoveFromLru(pFS, p);
+  }else{
+
+    if( fsMmapPage(pFS, iReal) ){
+      i64 iEnd = (i64)iReal * pFS->nPagesize;
+      fsGrowMapping(pFS, iEnd, &rc);
+      if( rc!=LSM_OK ) return rc;
+
+      if( pFS->pFree ){
+        p = pFS->pFree;
+        pFS->pFree = p->pFreeNext;
+        assert( p->nRef==0 );
+      }else{
+        p = lsmMallocZeroRc(pFS->pEnv, sizeof(Page), &rc);
+        if( rc ) return rc;
+        p->pFS = pFS;
+      }
+      p->aData = &((u8 *)pFS->pMap)[pFS->nPagesize * (iReal-1)];
+      p->iPg = iReal;
+
+      /* This page now carries a pointer to the mapping. Link it in to
+      ** the FileSystem.pMapped list.  */
+      assert( p->pMappedNext==0 );
+      p->pMappedNext = pFS->pMapped;
+      pFS->pMapped = p;
+
+      assert( pFS->pCompress==0 );
+      assert( (p->flags & PAGE_FREE)==0 );
+    }else{
+      rc = fsPageBuffer(pFS, &p);
+      if( rc==LSM_OK ){
+        int nSpace = 0;
+        p->iPg = iReal;
+        p->nRef = 0;
+        p->pFS = pFS;
+        assert( p->flags==0 || p->flags==PAGE_FREE );
+
+#ifdef LSM_DEBUG
+        memset(p->aData, 0x56, pFS->nPagesize);
+#endif
+        assert( p->pLruNext==0 && p->pLruPrev==0 );
+        if( noContent==0 ){
+          if( pFS->pCompress ){
+            rc = fsReadPagedata(pFS, pSeg, p, &nSpace);
+          }else{
+            int nByte = pFS->nPagesize;
+            i64 iOff = (i64)(iReal-1) * pFS->nPagesize;
+            rc = lsmEnvRead(pFS->pEnv, pFS->fdDb, iOff, p->aData, nByte);
+          }
+          pFS->nRead++;
+        }
+
+        /* If the xRead() call was successful (or not attempted), link the
+        ** page into the page-cache hash-table. Otherwise, if it failed,
+        ** free the buffer. */
+        if( rc==LSM_OK && nSpace==0 ){
+          p->pHashNext = pFS->apHash[iHash];
+          pFS->apHash[iHash] = p;
+        }else{
+          fsPageBufferFree(p);
+          p = 0;
+          if( pnSpace ) *pnSpace = nSpace;
+        }
+      }
+    }
+
+    assert( (rc==LSM_OK && (p || (pnSpace && *pnSpace)))
+         || (rc!=LSM_OK && p==0) 
+    );
+  }
+
+  if( rc==LSM_OK && p ){
+    if( pFS->pCompress==0 && (fsIsLast(pFS, iReal) || fsIsFirst(pFS, iReal)) ){
+      p->nData = pFS->nPagesize - 4;
+      if( fsIsFirst(pFS, iReal) && p->nRef==0 ){
+        p->aData += 4;
+        p->flags |= PAGE_HASPREV;
+      }
+    }else{
+      p->nData = pFS->nPagesize;
+    }
+    pFS->nOut += (p->nRef==0);
+    p->nRef++;
+  }
+  *ppPg = p;
+  return rc;
+}
+
+/*
+** Read the 64-bit checkpoint id of the checkpoint currently stored on meta
+** page iMeta of the database file. If no error occurs, store the id value
+** in *piVal and return LSM_OK. Otherwise, return an LSM error code and leave
+** *piVal unmodified.
+**
+** If a checkpointer connection is currently updating meta-page iMeta, or an
+** earlier checkpointer crashed while doing so, the value read into *piVal
+** may be garbage. It is the callers responsibility to deal with this.
+*/
+int lsmFsReadSyncedId(lsm_db *db, int iMeta, i64 *piVal){
+  FileSystem *pFS = db->pFS;
+  int rc = LSM_OK;
+
+  assert( iMeta==1 || iMeta==2 );
+  if( pFS->nMapLimit>0 ){
+    fsGrowMapping(pFS, iMeta*LSM_META_PAGE_SIZE, &rc);
+    if( rc==LSM_OK ){
+      *piVal = (i64)lsmGetU64(&((u8 *)pFS->pMap)[(iMeta-1)*LSM_META_PAGE_SIZE]);
+    }
+  }else{
+    MetaPage *pMeta = 0;
+    rc = lsmFsMetaPageGet(pFS, 0, iMeta, &pMeta);
+    if( rc==LSM_OK ){
+      *piVal = (i64)lsmGetU64(pMeta->aData);
+      lsmFsMetaPageRelease(pMeta);
+    }
+  }
+
+  return rc;
+}
+
+
+/*
+** Return true if the first or last page of segment pRun falls between iFirst
+** and iLast, inclusive, and pRun is not equal to pIgnore.
+*/
+static int fsRunEndsBetween(
+  Segment *pRun, 
+  Segment *pIgnore, 
+  LsmPgno iFirst, 
+  LsmPgno iLast
+){
+  return (pRun!=pIgnore && (
+        (pRun->iFirst>=iFirst && pRun->iFirst<=iLast)
+     || (pRun->iLastPg>=iFirst && pRun->iLastPg<=iLast)
+  ));
+}
+
+/*
+** Return true if level pLevel contains a segment other than pIgnore for
+** which the first or last page is between iFirst and iLast, inclusive.
+*/
+static int fsLevelEndsBetween(
+  Level *pLevel, 
+  Segment *pIgnore, 
+  LsmPgno iFirst, 
+  LsmPgno iLast
+){
+  int i;
+
+  if( fsRunEndsBetween(&pLevel->lhs, pIgnore, iFirst, iLast) ){
+    return 1;
+  }
+  for(i=0; i<pLevel->nRight; i++){
+    if( fsRunEndsBetween(&pLevel->aRhs[i], pIgnore, iFirst, iLast) ){
+      return 1;
+    }
+  }
+
+  return 0;
+}
+
+/*
+** Block iBlk is no longer in use by segment pIgnore. If it is not in use
+** by any other segment, move it to the free block list.
+*/
+static int fsFreeBlock(
+  FileSystem *pFS,                /* File system object */
+  Snapshot *pSnapshot,            /* Worker snapshot */
+  Segment *pIgnore,               /* Ignore this run when searching */
+  int iBlk                        /* Block number of block to free */
+){
+  int rc = LSM_OK;                /* Return code */
+  LsmPgno iFirst;                 /* First page on block iBlk */
+  LsmPgno iLast;                  /* Last page on block iBlk */
+  Level *pLevel;                  /* Used to iterate through levels */
+
+  int iIn;                        /* Used to iterate through append points */
+  int iOut = 0;                   /* Used to output append points */
+  LsmPgno *aApp = pSnapshot->aiAppend;
+
+  iFirst = fsFirstPageOnBlock(pFS, iBlk);
+  iLast = fsLastPageOnBlock(pFS, iBlk);
+
+  /* Check if any other run in the snapshot has a start or end page 
+  ** within this block. If there is such a run, return early. */
+  for(pLevel=lsmDbSnapshotLevel(pSnapshot); pLevel; pLevel=pLevel->pNext){
+    if( fsLevelEndsBetween(pLevel, pIgnore, iFirst, iLast) ){
+      return LSM_OK;
+    }
+  }
+
+  /* Remove any entries that lie on this block from the append-list. */
+  for(iIn=0; iIn<LSM_APPLIST_SZ; iIn++){
+    if( aApp[iIn]<iFirst || aApp[iIn]>iLast ){
+      aApp[iOut++] = aApp[iIn];
+    }
+  }
+  while( iOut<LSM_APPLIST_SZ ) aApp[iOut++] = 0;
+
+  if( rc==LSM_OK ){
+    rc = lsmBlockFree(pFS->pDb, iBlk);
+  }
+  return rc;
+}
+
+/*
+** Delete or otherwise recycle the blocks currently occupied by run pDel.
+*/
+int lsmFsSortedDelete(
+  FileSystem *pFS, 
+  Snapshot *pSnapshot,
+  int bZero,                      /* True to zero the Segment structure */
+  Segment *pDel
+){
+  if( pDel->iFirst ){
+    int rc = LSM_OK;
+
+    int iBlk;
+    int iLastBlk;
+
+    iBlk = fsPageToBlock(pFS, pDel->iFirst);
+    iLastBlk = fsPageToBlock(pFS, pDel->iLastPg);
+
+    /* Mark all blocks currently used by this sorted run as free */
+    while( iBlk && rc==LSM_OK ){
+      int iNext = 0;
+      if( iBlk!=iLastBlk ){
+        rc = fsBlockNext(pFS, pDel, iBlk, &iNext);
+      }else if( bZero==0 && pDel->iLastPg!=fsLastPageOnBlock(pFS, iLastBlk) ){
+        break;
+      }
+      rc = fsFreeBlock(pFS, pSnapshot, pDel, iBlk);
+      iBlk = iNext;
+    }
+
+    if( pDel->pRedirect ){
+      assert( pDel->pRedirect==&pSnapshot->redirect );
+      pSnapshot->redirect.n = 0;
+    }
+
+    if( bZero ) memset(pDel, 0, sizeof(Segment));
+  }
+  return LSM_OK;
+}
+
+/*
+** aPgno is an array containing nPgno page numbers. Return the smallest page
+** number from the array that falls on block iBlk. Or, if none of the pages
+** in aPgno[] fall on block iBlk, return 0.
+*/
+static LsmPgno firstOnBlock(
+  FileSystem *pFS, 
+  int iBlk, 
+  LsmPgno *aPgno, 
+  int nPgno
+){
+  LsmPgno iRet = 0;
+  int i;
+  for(i=0; i<nPgno; i++){
+    LsmPgno iPg = aPgno[i];
+    if( fsPageToBlock(pFS, iPg)==iBlk && (iRet==0 || iPg<iRet) ){
+      iRet = iPg;
+    }
+  }
+  return iRet;
+}
+
+#ifndef NDEBUG
+/*
+** Return true if page iPg, which is a part of segment p, lies on
+** a redirected block. 
+*/
+static int fsPageRedirects(FileSystem *pFS, Segment *p, LsmPgno iPg){
+  return (iPg!=0 && iPg!=lsmFsRedirectPage(pFS, p->pRedirect, iPg));
+}
+
+/*
+** Return true if the second argument is not NULL and any of the first
+** last or root pages lie on a redirected block. 
+*/
+static int fsSegmentRedirects(FileSystem *pFS, Segment *p){
+  return (p && (
+      fsPageRedirects(pFS, p, p->iFirst)
+   || fsPageRedirects(pFS, p, p->iRoot)
+   || fsPageRedirects(pFS, p, p->iLastPg)
+  ));
+}
+#endif
+
+/*
+** Argument aPgno is an array of nPgno page numbers. All pages belong to
+** the segment pRun. This function gobbles from the start of the run to the
+** first page that appears in aPgno[] (i.e. so that the aPgno[] entry is
+** the new first page of the run).
+*/
+void lsmFsGobble(
+  lsm_db *pDb,
+  Segment *pRun, 
+  LsmPgno *aPgno,
+  int nPgno
+){
+  int rc = LSM_OK;
+  FileSystem *pFS = pDb->pFS;
+  Snapshot *pSnapshot = pDb->pWorker;
+  int iBlk;
+
+  assert( pRun->nSize>0 );
+  assert( 0==fsSegmentRedirects(pFS, pRun) );
+  assert( nPgno>0 && 0==fsPageRedirects(pFS, pRun, aPgno[0]) );
+
+  iBlk = fsPageToBlock(pFS, pRun->iFirst);
+  pRun->nSize += (pRun->iFirst - fsFirstPageOnBlock(pFS, iBlk));
+
+  while( rc==LSM_OK ){
+    int iNext = 0;
+    LsmPgno iFirst = firstOnBlock(pFS, iBlk, aPgno, nPgno);
+    if( iFirst ){
+      pRun->iFirst = iFirst;
+      break;
+    }
+    rc = fsBlockNext(pFS, pRun, iBlk, &iNext);
+    if( rc==LSM_OK ) rc = fsFreeBlock(pFS, pSnapshot, pRun, iBlk);
+    pRun->nSize -= (
+        1 + fsLastPageOnBlock(pFS, iBlk) - fsFirstPageOnBlock(pFS, iBlk)
+    );
+    iBlk = iNext;
+  }
+
+  pRun->nSize -= (pRun->iFirst - fsFirstPageOnBlock(pFS, iBlk));
+  assert( pRun->nSize>0 );
+}
+
+/*
+** This function is only used in compressed database mode.
+**
+** Argument iPg is the page number (byte offset) of a page within segment
+** pSeg. The page record, including all headers, is nByte bytes in size.
+** Before returning, set *piNext to the page number of the next page in
+** the segment, or to zero if iPg is the last.
+**
+** In other words, do:
+**
+**   *piNext = iPg + nByte;
+**
+** But take block overflow and redirection into account.
+*/
+static int fsNextPageOffset(
+  FileSystem *pFS,                /* File system object */
+  Segment *pSeg,                  /* Segment to move within */
+  LsmPgno iPg,                    /* Offset of current page */
+  int nByte,                      /* Size of current page including headers */
+  LsmPgno *piNext                 /* OUT: Offset of next page. Or zero (EOF) */
+){
+  LsmPgno iNext;
+  int rc;
+
+  assert( pFS->pCompress );
+
+  rc = fsAddOffset(pFS, pSeg, iPg, nByte-1, &iNext);
+  if( pSeg && iNext==pSeg->iLastPg ){
+    iNext = 0;
+  }else if( rc==LSM_OK ){
+    rc = fsAddOffset(pFS, pSeg, iNext, 1, &iNext);
+  }
+
+  *piNext = iNext;
+  return rc;
+}
+
+/*
+** This function is only used in compressed database mode.
+**
+** Argument iPg is the page number of a pagethat appears in segment pSeg.
+** This function determines the page number of the previous page in the
+** same run. *piPrev is set to the previous page number before returning.
+**
+** LSM_OK is returned if no error occurs. Otherwise, an lsm error code.
+** If any value other than LSM_OK is returned, then the final value of
+** *piPrev is undefined.
+*/
+static int fsGetPageBefore(
+  FileSystem *pFS, 
+  Segment *pSeg, 
+  LsmPgno iPg, 
+  LsmPgno *piPrev
+){
+  u8 aSz[3];
+  int rc;
+  i64 iRead;
+
+  assert( pFS->pCompress );
+
+  rc = fsSubtractOffset(pFS, pSeg, iPg, sizeof(aSz), &iRead);
+  if( rc==LSM_OK ) rc = fsReadData(pFS, pSeg, iRead, aSz, sizeof(aSz));
+
+  if( rc==LSM_OK ){
+    int bFree;
+    int nSz;
+    if( aSz[2] & 0x80 ){
+      nSz = getRecordSize(aSz, &bFree) + sizeof(aSz)*2;
+    }else{
+      nSz = (int)(aSz[2] & 0x7F);
+      bFree = 1;
+    }
+    rc = fsSubtractOffset(pFS, pSeg, iPg, nSz, piPrev);
+  }
+
+  return rc;
+}
+
+/*
+** The first argument to this function is a valid reference to a database
+** file page that is part of a sorted run. If parameter eDir is -1, this 
+** function attempts to locate and load the previous page in the same run. 
+** Or, if eDir is +1, it attempts to find the next page in the same run.
+** The results of passing an eDir value other than positive or negative one
+** are undefined.
+**
+** If parameter pRun is not NULL then it must point to the run that page
+** pPg belongs to. In this case, if pPg is the first or last page of the
+** run, and the request is for the previous or next page, respectively,
+** *ppNext is set to NULL before returning LSM_OK. If pRun is NULL, then it
+** is assumed that the next or previous page, as requested, exists.
+**
+** If the previous/next page does exist and is successfully loaded, *ppNext
+** is set to point to it and LSM_OK is returned. Otherwise, if an error 
+** occurs, *ppNext is set to NULL and and lsm error code returned.
+**
+** Page references returned by this function should be released by the 
+** caller using lsmFsPageRelease().
+*/
+int lsmFsDbPageNext(Segment *pRun, Page *pPg, int eDir, Page **ppNext){
+  int rc = LSM_OK;
+  FileSystem *pFS = pPg->pFS;
+  LsmPgno iPg = pPg->iPg;
+
+  assert( 0==fsSegmentRedirects(pFS, pRun) );
+  if( pFS->pCompress ){
+    int nSpace = pPg->nCompress + 2*3;
+
+    do {
+      if( eDir>0 ){
+        rc = fsNextPageOffset(pFS, pRun, iPg, nSpace, &iPg);
+      }else{
+        if( iPg==pRun->iFirst ){
+          iPg = 0;
+        }else{
+          rc = fsGetPageBefore(pFS, pRun, iPg, &iPg);
+        }
+      }
+
+      nSpace = 0;
+      if( iPg!=0 ){
+        rc = fsPageGet(pFS, pRun, iPg, 0, ppNext, &nSpace);
+        assert( (*ppNext==0)==(rc!=LSM_OK || nSpace>0) );
+      }else{
+        *ppNext = 0;
+      }
+    }while( nSpace>0 && rc==LSM_OK );
+
+  }else{
+    Redirect *pRedir = pRun ? pRun->pRedirect : 0;
+    assert( eDir==1 || eDir==-1 );
+    if( eDir<0 ){
+      if( pRun && iPg==pRun->iFirst ){
+        *ppNext = 0;
+        return LSM_OK;
+      }else if( fsIsFirst(pFS, iPg) ){
+        assert( pPg->flags & PAGE_HASPREV );
+        iPg = fsLastPageOnBlock(pFS, lsmGetU32(&pPg->aData[-4]));
+      }else{
+        iPg--;
+      }
+    }else{
+      if( pRun ){
+        if( iPg==pRun->iLastPg ){
+          *ppNext = 0;
+          return LSM_OK;
+        }
+      }
+
+      if( fsIsLast(pFS, iPg) ){
+        int iBlk = fsRedirectBlock(
+            pRedir, lsmGetU32(&pPg->aData[pFS->nPagesize-4])
+        );
+        iPg = fsFirstPageOnBlock(pFS, iBlk);
+      }else{
+        iPg++;
+      }
+    }
+    rc = fsPageGet(pFS, pRun, iPg, 0, ppNext, 0);
+  }
+
+  return rc;
+}
+
+/*
+** This function is called when creating a new segment to determine if the
+** first part of it can be written following an existing segment on an
+** already allocated block. If it is possible, the page number of the first
+** page to use for the new segment is returned. Otherwise zero.
+**
+** If argument pLvl is not NULL, then this function will not attempt to
+** start the new segment immediately following any segment that is part
+** of the right-hand-side of pLvl.
+*/
+static LsmPgno findAppendPoint(FileSystem *pFS, Level *pLvl){
+  int i;
+  LsmPgno *aiAppend = pFS->pDb->pWorker->aiAppend;
+  LsmPgno iRet = 0;
+
+  for(i=LSM_APPLIST_SZ-1; iRet==0 && i>=0; i--){
+    if( (iRet = aiAppend[i]) ){
+      if( pLvl ){
+        int iBlk = fsPageToBlock(pFS, iRet);
+        int j;
+        for(j=0; iRet && j<pLvl->nRight; j++){
+          if( fsPageToBlock(pFS, pLvl->aRhs[j].iLastPg)==iBlk ){
+            iRet = 0;
+          }
+        }
+      }
+      if( iRet ) aiAppend[i] = 0;
+    }
+  }
+  return iRet;
+}
+
+/*
+** Append a page to the left-hand-side of pLvl. Set the ref-count to 1 and
+** return a pointer to it. The page is writable until either 
+** lsmFsPagePersist() is called on it or the ref-count drops to zero.
+*/
+int lsmFsSortedAppend(
+  FileSystem *pFS, 
+  Snapshot *pSnapshot,
+  Level *pLvl,
+  int bDefer,
+  Page **ppOut
+){
+  int rc = LSM_OK;
+  Page *pPg = 0;
+  LsmPgno iApp = 0;
+  LsmPgno iNext = 0;
+  Segment *p = &pLvl->lhs;
+  LsmPgno iPrev = p->iLastPg;
+
+  *ppOut = 0;
+  assert( p->pRedirect==0 );
+
+  if( pFS->pCompress || bDefer ){
+    /* In compressed database mode the page is not assigned a page number
+    ** or location in the database file at this point. This will be done
+    ** by the lsmFsPagePersist() call.  */
+    rc = fsPageBuffer(pFS, &pPg);
+    if( rc==LSM_OK ){
+      pPg->pFS = pFS;
+      pPg->pSeg = p;
+      pPg->iPg = 0;
+      pPg->flags |= PAGE_DIRTY;
+      pPg->nData = pFS->nPagesize;
+      assert( pPg->aData );
+      if( pFS->pCompress==0 ) pPg->nData -= 4;
+
+      pPg->nRef = 1;
+      pFS->nOut++;
+    }
+  }else{
+    if( iPrev==0 ){
+      iApp = findAppendPoint(pFS, pLvl);
+    }else if( fsIsLast(pFS, iPrev) ){
+      int iNext2;
+      rc = fsBlockNext(pFS, 0, fsPageToBlock(pFS, iPrev), &iNext2);
+      if( rc!=LSM_OK ) return rc;
+      iApp = fsFirstPageOnBlock(pFS, iNext2);
+    }else{
+      iApp = iPrev + 1;
+    }
+
+    /* If this is the first page allocated, or if the page allocated is the
+    ** last in the block, also allocate the next block here.  */
+    if( iApp==0 || fsIsLast(pFS, iApp) ){
+      int iNew;                     /* New block number */
+
+      rc = lsmBlockAllocate(pFS->pDb, 0, &iNew);
+      if( rc!=LSM_OK ) return rc;
+      if( iApp==0 ){
+        iApp = fsFirstPageOnBlock(pFS, iNew);
+      }else{
+        iNext = fsFirstPageOnBlock(pFS, iNew);
+      }
+    }
+
+    /* Grab the new page. */
+    pPg = 0;
+    rc = fsPageGet(pFS, 0, iApp, 1, &pPg, 0);
+    assert( rc==LSM_OK || pPg==0 );
+
+    /* If this is the first or last page of a block, fill in the pointer 
+     ** value at the end of the new page. */
+    if( rc==LSM_OK ){
+      p->nSize++;
+      p->iLastPg = iApp;
+      if( p->iFirst==0 ) p->iFirst = iApp;
+      pPg->flags |= PAGE_DIRTY;
+
+      if( fsIsLast(pFS, iApp) ){
+        lsmPutU32(&pPg->aData[pFS->nPagesize-4], fsPageToBlock(pFS, iNext));
+      }else if( fsIsFirst(pFS, iApp) ){
+        lsmPutU32(&pPg->aData[-4], fsPageToBlock(pFS, iPrev));
+      }
+    }
+  }
+
+  *ppOut = pPg;
+  return rc;
+}
+
+/*
+** Mark the segment passed as the second argument as finished. Once a segment
+** is marked as finished it is not possible to append any further pages to 
+** it.
+**
+** Return LSM_OK if successful or an lsm error code if an error occurs.
+*/
+int lsmFsSortedFinish(FileSystem *pFS, Segment *p){
+  int rc = LSM_OK;
+  if( p && p->iLastPg ){
+    assert( p->pRedirect==0 );
+
+    /* Check if the last page of this run happens to be the last of a block.
+    ** If it is, then an extra block has already been allocated for this run.
+    ** Shift this extra block back to the free-block list. 
+    **
+    ** Otherwise, add the first free page in the last block used by the run
+    ** to the lAppend list.
+    */
+    if( fsLastPageOnPagesBlock(pFS, p->iLastPg)!=p->iLastPg ){
+      int i;
+      LsmPgno *aiAppend = pFS->pDb->pWorker->aiAppend;
+      for(i=0; i<LSM_APPLIST_SZ; i++){
+        if( aiAppend[i]==0 ){
+          aiAppend[i] = p->iLastPg+1;
+          break;
+        }
+      }
+    }else if( pFS->pCompress==0 ){
+      Page *pLast;
+      rc = fsPageGet(pFS, 0, p->iLastPg, 0, &pLast, 0);
+      if( rc==LSM_OK ){
+        int iBlk = (int)lsmGetU32(&pLast->aData[pFS->nPagesize-4]);
+        lsmBlockRefree(pFS->pDb, iBlk);
+        lsmFsPageRelease(pLast);
+      }
+    }else{
+      int iBlk = 0;
+      rc = fsBlockNext(pFS, p, fsPageToBlock(pFS, p->iLastPg), &iBlk);
+      if( rc==LSM_OK ){
+        lsmBlockRefree(pFS->pDb, iBlk);
+      }
+    }
+  }
+  return rc;
+}
+
+/*
+** Obtain a reference to page number iPg.
+**
+** Return LSM_OK if successful, or an lsm error code if an error occurs.
+*/
+int lsmFsDbPageGet(FileSystem *pFS, Segment *pSeg, LsmPgno iPg, Page **ppPg){
+  return fsPageGet(pFS, pSeg, iPg, 0, ppPg, 0);
+}
+
+/*
+** Obtain a reference to the last page in the segment passed as the 
+** second argument.
+**
+** Return LSM_OK if successful, or an lsm error code if an error occurs.
+*/
+int lsmFsDbPageLast(FileSystem *pFS, Segment *pSeg, Page **ppPg){
+  int rc;
+  LsmPgno iPg = pSeg->iLastPg;
+  if( pFS->pCompress ){
+    int nSpace;
+    iPg++;
+    do {
+      nSpace = 0;
+      rc = fsGetPageBefore(pFS, pSeg, iPg, &iPg);
+      if( rc==LSM_OK ){
+        rc = fsPageGet(pFS, pSeg, iPg, 0, ppPg, &nSpace);
+      }
+    }while( rc==LSM_OK && nSpace>0 );
+
+  }else{
+    rc = fsPageGet(pFS, pSeg, iPg, 0, ppPg, 0);
+  }
+  return rc;
+}
+
+/*
+** Return a reference to meta-page iPg. If successful, LSM_OK is returned
+** and *ppPg populated with the new page reference. The reference should
+** be released by the caller using lsmFsPageRelease().
+**
+** Otherwise, if an error occurs, *ppPg is set to NULL and an LSM error 
+** code is returned.
+*/
+int lsmFsMetaPageGet(
+  FileSystem *pFS,                /* File-system connection */
+  int bWrite,                     /* True for write access, false for read */
+  int iPg,                        /* Either 1 or 2 */
+  MetaPage **ppPg                 /* OUT: Pointer to MetaPage object */
+){
+  int rc = LSM_OK;
+  MetaPage *pPg;
+  assert( iPg==1 || iPg==2 );
+
+  pPg = lsmMallocZeroRc(pFS->pEnv, sizeof(Page), &rc);
+
+  if( pPg ){
+    i64 iOff = (iPg-1) * pFS->nMetasize;
+    if( pFS->nMapLimit>0 ){
+      fsGrowMapping(pFS, 2*pFS->nMetasize, &rc);
+      pPg->aData = (u8 *)(pFS->pMap) + iOff;
+    }else{
+      pPg->aData = lsmMallocRc(pFS->pEnv, pFS->nMetasize, &rc);
+      if( rc==LSM_OK && bWrite==0 ){
+        rc = lsmEnvRead(
+            pFS->pEnv, pFS->fdDb, iOff, pPg->aData, pFS->nMetaRwSize
+        );
+      }
+#ifndef NDEBUG
+      /* pPg->aData causes an uninitialized access via a downstreadm write().
+         After discussion on this list, this memory should not, for performance
+         reasons, be memset. However, tracking down "real" misuse is more
+         difficult with this "false" positive, so it is set when NDEBUG.
+      */
+      else if( rc==LSM_OK ){
+        memset( pPg->aData, 0x77, pFS->nMetasize );
+      }
+#endif
+    }
+
+    if( rc!=LSM_OK ){
+      if( pFS->nMapLimit==0 ) lsmFree(pFS->pEnv, pPg->aData);
+      lsmFree(pFS->pEnv, pPg);
+      pPg = 0;
+    }else{
+      pPg->iPg = iPg;
+      pPg->bWrite = bWrite;
+      pPg->pFS = pFS;
+    }
+  }
+
+  *ppPg = pPg;
+  return rc;
+}
+
+/*
+** Release a meta-page reference obtained via a call to lsmFsMetaPageGet().
+*/
+int lsmFsMetaPageRelease(MetaPage *pPg){
+  int rc = LSM_OK;
+  if( pPg ){
+    FileSystem *pFS = pPg->pFS;
+
+    if( pFS->nMapLimit==0 ){
+      if( pPg->bWrite ){
+        i64 iOff = (pPg->iPg==2 ? pFS->nMetasize : 0);
+        int nWrite = pFS->nMetaRwSize;
+        rc = lsmEnvWrite(pFS->pEnv, pFS->fdDb, iOff, pPg->aData, nWrite);
+      }
+      lsmFree(pFS->pEnv, pPg->aData);
+    }
+
+    lsmFree(pFS->pEnv, pPg);
+  }
+  return rc;
+}
+
+/*
+** Return a pointer to a buffer containing the data associated with the
+** meta-page passed as the first argument. If parameter pnData is not NULL,
+** set *pnData to the size of the meta-page in bytes before returning.
+*/
+u8 *lsmFsMetaPageData(MetaPage *pPg, int *pnData){
+  if( pnData ) *pnData = pPg->pFS->nMetaRwSize;
+  return pPg->aData;
+}
+
+/*
+** Return true if page is currently writable. This is used in assert() 
+** statements only.
+*/
+#ifndef NDEBUG
+int lsmFsPageWritable(Page *pPg){
+  return (pPg->flags & PAGE_DIRTY) ? 1 : 0;
+}
+#endif
+
+/*
+** This is called when block iFrom is being redirected to iTo. If page 
+** number (*piPg) lies on block iFrom, then calculate the equivalent
+** page on block iTo and set *piPg to this value before returning.
+*/
+static void fsMovePage(
+  FileSystem *pFS,                /* File system object */
+  int iTo,                        /* Destination block */
+  int iFrom,                      /* Source block */
+  LsmPgno *piPg                   /* IN/OUT: Page number */
+){
+  LsmPgno iPg = *piPg;
+  if( iFrom==fsPageToBlock(pFS, iPg) ){
+    const int nPagePerBlock = (
+        pFS->pCompress ? pFS ->nBlocksize : (pFS->nBlocksize / pFS->nPagesize)
+    );
+    *piPg = iPg - (LsmPgno)(iFrom - iTo) * nPagePerBlock;
+  }
+}
+
+/*
+** Copy the contents of block iFrom to block iTo. 
+**
+** It is safe to assume that there are no outstanding references to pages 
+** on block iTo. And that block iFrom is not currently being written. In
+** other words, the data can be read and written directly.
+*/
+int lsmFsMoveBlock(FileSystem *pFS, Segment *pSeg, int iTo, int iFrom){
+  Snapshot *p = pFS->pDb->pWorker;
+  int rc = LSM_OK;
+  int i;
+  i64 nMap;
+
+  i64 iFromOff = (i64)(iFrom-1) * pFS->nBlocksize;
+  i64 iToOff = (i64)(iTo-1) * pFS->nBlocksize;
+  
+  assert( iTo!=1 );
+  assert( iFrom>iTo );
+
+  /* Grow the mapping as required. */
+  nMap = LSM_MIN(pFS->nMapLimit, (i64)iFrom * pFS->nBlocksize);
+  fsGrowMapping(pFS, nMap, &rc);
+
+  if( rc==LSM_OK ){
+    const int nPagePerBlock = (pFS->nBlocksize / pFS->nPagesize);
+    int nSz = pFS->nPagesize;
+    u8 *aBuf = 0;
+    u8 *aData = 0;
+
+    for(i=0; rc==LSM_OK && i<nPagePerBlock; i++){
+      i64 iOff = iFromOff + i*nSz;
+
+      /* Set aData to point to a buffer containing the from page */
+      if( (iOff+nSz)<=pFS->nMapLimit ){
+        u8 *aMap = (u8 *)(pFS->pMap);
+        aData = &aMap[iOff];
+      }else{
+        if( aBuf==0 ){
+          aBuf = (u8 *)lsmMallocRc(pFS->pEnv, nSz, &rc);
+          if( aBuf==0 ) break;
+        }
+        aData = aBuf;
+        rc = lsmEnvRead(pFS->pEnv, pFS->fdDb, iOff, aData, nSz);
+      }
+
+      /* Copy aData to the to page */
+      if( rc==LSM_OK ){
+        iOff = iToOff + i*nSz;
+        if( (iOff+nSz)<=pFS->nMapLimit ){
+          u8 *aMap = (u8 *)(pFS->pMap);
+          memcpy(&aMap[iOff], aData, nSz);
+        }else{
+          rc = lsmEnvWrite(pFS->pEnv, pFS->fdDb, iOff, aData, nSz);
+        }
+      }
+    }
+    lsmFree(pFS->pEnv, aBuf);
+    lsmFsPurgeCache(pFS);
+  }
+
+  /* Update append-point list if necessary */
+  for(i=0; i<LSM_APPLIST_SZ; i++){
+    fsMovePage(pFS, iTo, iFrom, &p->aiAppend[i]);
+  }
+
+  /* Update the Segment structure itself */
+  fsMovePage(pFS, iTo, iFrom, &pSeg->iFirst);
+  fsMovePage(pFS, iTo, iFrom, &pSeg->iLastPg);
+  fsMovePage(pFS, iTo, iFrom, &pSeg->iRoot);
+
+  return rc;
+}
+
+/*
+** Append raw data to a segment. Return the database file offset that the
+** data is written to (this may be used as the page number if the data
+** being appended is a new page record).
+**
+** This function is only used in compressed database mode.
+*/
+static LsmPgno fsAppendData(
+  FileSystem *pFS,                /* File-system handle */
+  Segment *pSeg,                  /* Segment to append to */
+  const u8 *aData,                /* Buffer containing data to write */
+  int nData,                      /* Size of buffer aData[] in bytes */
+  int *pRc                        /* IN/OUT: Error code */
+){
+  LsmPgno iRet = 0;
+  int rc = *pRc;
+  assert( pFS->pCompress );
+  if( rc==LSM_OK ){
+    int nRem = 0;
+    int nWrite = 0;
+    LsmPgno iLastOnBlock;
+    LsmPgno iApp = pSeg->iLastPg+1;
+
+    /* If this is the first data written into the segment, find an append-point
+    ** or allocate a new block.  */
+    if( iApp==1 ){
+      pSeg->iFirst = iApp = findAppendPoint(pFS, 0);
+      if( iApp==0 ){
+        int iBlk;
+        rc = lsmBlockAllocate(pFS->pDb, 0, &iBlk);
+        pSeg->iFirst = iApp = fsFirstPageOnBlock(pFS, iBlk);
+      }
+    }
+    iRet = iApp;
+
+    /* Write as much data as is possible at iApp (usually all of it). */
+    iLastOnBlock = fsLastPageOnPagesBlock(pFS, iApp);
+    if( rc==LSM_OK ){
+      int nSpace = (int)(iLastOnBlock - iApp + 1);
+      nWrite = LSM_MIN(nData, nSpace);
+      nRem = nData - nWrite;
+      assert( nWrite>=0 );
+      if( nWrite!=0 ){
+        rc = lsmEnvWrite(pFS->pEnv, pFS->fdDb, iApp, aData, nWrite);
+      }
+      iApp += nWrite;
+    }
+
+    /* If required, allocate a new block and write the rest of the data
+    ** into it. Set the next and previous block pointers to link the new
+    ** block to the old.  */
+    assert( nRem<=0 || (iApp-1)==iLastOnBlock );
+    if( rc==LSM_OK && (iApp-1)==iLastOnBlock ){
+      u8 aPtr[4];                 /* Space to serialize a u32 */
+      int iBlk;                   /* New block number */
+
+      if( nWrite>0 ){
+        /* Allocate a new block. */
+        rc = lsmBlockAllocate(pFS->pDb, 0, &iBlk);
+
+        /* Set the "next" pointer on the old block */
+        if( rc==LSM_OK ){
+          assert( iApp==(fsPageToBlock(pFS, iApp)*pFS->nBlocksize)-4 );
+          lsmPutU32(aPtr, iBlk);
+          rc = lsmEnvWrite(pFS->pEnv, pFS->fdDb, iApp, aPtr, sizeof(aPtr));
+        }
+
+        /* Set the "prev" pointer on the new block */
+        if( rc==LSM_OK ){
+          LsmPgno iWrite;
+          lsmPutU32(aPtr, fsPageToBlock(pFS, iApp));
+          iWrite = fsFirstPageOnBlock(pFS, iBlk);
+          rc = lsmEnvWrite(pFS->pEnv, pFS->fdDb, iWrite-4, aPtr, sizeof(aPtr));
+          if( nRem>0 ) iApp = iWrite;
+        }
+      }else{
+        /* The next block is already allocated. */
+        assert( nRem>0 );
+        assert( pSeg->pRedirect==0 );
+        rc = fsBlockNext(pFS, 0, fsPageToBlock(pFS, iApp), &iBlk);
+        iRet = iApp = fsFirstPageOnBlock(pFS, iBlk);
+      }
+
+      /* Write the remaining data into the new block */
+      if( rc==LSM_OK && nRem>0 ){
+        rc = lsmEnvWrite(pFS->pEnv, pFS->fdDb, iApp, &aData[nWrite], nRem);
+        iApp += nRem;
+      }
+    }
+
+    pSeg->iLastPg = iApp-1;
+    *pRc = rc;
+  }
+
+  return iRet;
+}
+
+/*
+** This function is only called in compressed database mode. It 
+** compresses the contents of page pPg and writes the result to the 
+** buffer at pFS->aOBuffer. The size of the compressed data is stored in
+** pPg->nCompress.
+**
+** If buffer pFS->aOBuffer[] has not been allocated then this function
+** allocates it. If this fails, LSM_NOMEM is returned. Otherwise, LSM_OK.
+*/
+static int fsCompressIntoBuffer(FileSystem *pFS, Page *pPg){
+  lsm_compress *p = pFS->pCompress;
+
+  if( fsAllocateBuffer(pFS, 1) ) return LSM_NOMEM;
+  assert( pPg->nData==pFS->nPagesize );
+
+  pPg->nCompress = pFS->nBuffer;
+  return p->xCompress(p->pCtx, 
+      (char *)pFS->aOBuffer, &pPg->nCompress, 
+      (const char *)pPg->aData, pPg->nData
+  );
+}
+
+/*
+** Append a new page to segment pSeg. Set output variable *piNew to the
+** page number of the new page before returning.
+**
+** If the new page is the last on its block, then the 'next' block that
+** will be used by the segment is allocated here too. In this case output
+** variable *piNext is set to the block number of the next block.
+**
+** If the new page is the first on its block but not the first in the
+** entire segment, set output variable *piPrev to the block number of
+** the previous block in the segment.
+**
+** LSM_OK is returned if successful, or an lsm error code otherwise. If
+** any value other than LSM_OK is returned, then the final value of all
+** output variables is undefined.
+*/
+static int fsAppendPage(
+  FileSystem *pFS, 
+  Segment *pSeg,
+  LsmPgno *piNew,
+  int *piPrev,
+  int *piNext
+){
+  LsmPgno iPrev = pSeg->iLastPg;
+  int rc;
+  assert( iPrev!=0 );
+
+  *piPrev = 0;
+  *piNext = 0;
+
+  if( fsIsLast(pFS, iPrev) ){
+    /* Grab the first page on the next block (which has already be
+    ** allocated). In this case set *piPrev to tell the caller to set
+    ** the "previous block" pointer in the first 4 bytes of the page.
+    */
+    int iNext;
+    int iBlk = fsPageToBlock(pFS, iPrev);
+    assert( pSeg->pRedirect==0 );
+    rc = fsBlockNext(pFS, 0, iBlk, &iNext);
+    if( rc!=LSM_OK ) return rc;
+    *piNew = fsFirstPageOnBlock(pFS, iNext);
+    *piPrev = iBlk;
+  }else{
+    *piNew = iPrev+1;
+    if( fsIsLast(pFS, *piNew) ){
+      /* Allocate the next block here. */
+      int iBlk;
+      rc = lsmBlockAllocate(pFS->pDb, 0, &iBlk);
+      if( rc!=LSM_OK ) return rc;
+      *piNext = iBlk;
+    }
+  }
+
+  pSeg->nSize++;
+  pSeg->iLastPg = *piNew;
+  return LSM_OK;
+}
+
+/*
+** Flush all pages in the FileSystem.pWaiting list to disk.
+*/
+void lsmFsFlushWaiting(FileSystem *pFS, int *pRc){
+  int rc = *pRc;
+  Page *pPg;
+
+  pPg = pFS->pWaiting;
+  pFS->pWaiting = 0;
+
+  while( pPg ){
+    Page *pNext = pPg->pWaitingNext;
+    if( rc==LSM_OK ) rc = lsmFsPagePersist(pPg);
+    assert( pPg->nRef==1 );
+    lsmFsPageRelease(pPg);
+    pPg = pNext;
+  }
+  *pRc = rc;
+}
+
+/*
+** If there exists a hash-table entry associated with page iPg, remove it.
+*/
+static void fsRemoveHashEntry(FileSystem *pFS, LsmPgno iPg){
+  Page *p;
+  int iHash = fsHashKey(pFS->nHash, iPg);
+
+  for(p=pFS->apHash[iHash]; p && p->iPg!=iPg; p=p->pHashNext);
+
+  if( p ){
+    assert( p->nRef==0 || (p->flags & PAGE_FREE)==0 );
+    fsPageRemoveFromHash(pFS, p);
+    p->iPg = 0;
+    iHash = fsHashKey(pFS->nHash, 0);
+    p->pHashNext = pFS->apHash[iHash];
+    pFS->apHash[iHash] = p;
+  }
+}
+
+/*
+** If the page passed as an argument is dirty, update the database file
+** (or mapping of the database file) with its current contents and mark
+** the page as clean.
+**
+** Return LSM_OK if the operation is a success, or an LSM error code
+** otherwise.
+*/
+int lsmFsPagePersist(Page *pPg){
+  int rc = LSM_OK;
+  if( pPg && (pPg->flags & PAGE_DIRTY) ){
+    FileSystem *pFS = pPg->pFS;
+
+    if( pFS->pCompress ){
+      int iHash;                  /* Hash key of assigned page number */
+      u8 aSz[3];                  /* pPg->nCompress as a 24-bit big-endian */
+      assert( pPg->pSeg && pPg->iPg==0 && pPg->nCompress==0 );
+
+      /* Compress the page image. */
+      rc = fsCompressIntoBuffer(pFS, pPg);
+
+      /* Serialize the compressed size into buffer aSz[] */
+      putRecordSize(aSz, pPg->nCompress, 0);
+
+      /* Write the serialized page record into the database file. */
+      pPg->iPg = fsAppendData(pFS, pPg->pSeg, aSz, sizeof(aSz), &rc);
+      fsAppendData(pFS, pPg->pSeg, pFS->aOBuffer, pPg->nCompress, &rc);
+      fsAppendData(pFS, pPg->pSeg, aSz, sizeof(aSz), &rc);
+
+      /* Now that it has a page number, insert the page into the hash table */
+      iHash = fsHashKey(pFS->nHash, pPg->iPg);
+      pPg->pHashNext = pFS->apHash[iHash];
+      pFS->apHash[iHash] = pPg;
+
+      pPg->pSeg->nSize += (sizeof(aSz) * 2) + pPg->nCompress;
+
+      pPg->flags &= ~PAGE_DIRTY;
+      pFS->nWrite++;
+    }else{
+
+      if( pPg->iPg==0 ){
+        /* No page number has been assigned yet. This occurs with pages used
+        ** in the b-tree hierarchy. They were not assigned page numbers when
+        ** they were created as doing so would cause this call to
+        ** lsmFsPagePersist() to write an out-of-order page. Instead a page 
+        ** number is assigned here so that the page data will be appended
+        ** to the current segment.
+        */
+        Page **pp;
+        int iPrev = 0;
+        int iNext = 0;
+        int iHash;
+
+        assert( pPg->pSeg->iFirst );
+        assert( pPg->flags & PAGE_FREE );
+        assert( (pPg->flags & PAGE_HASPREV)==0 );
+        assert( pPg->nData==pFS->nPagesize-4 );
+
+        rc = fsAppendPage(pFS, pPg->pSeg, &pPg->iPg, &iPrev, &iNext);
+        if( rc!=LSM_OK ) return rc;
+
+        assert( pPg->flags & PAGE_FREE );
+        iHash = fsHashKey(pFS->nHash, pPg->iPg);
+        fsRemoveHashEntry(pFS, pPg->iPg);
+        pPg->pHashNext = pFS->apHash[iHash];
+        pFS->apHash[iHash] = pPg;
+        assert( pPg->pHashNext==0 || pPg->pHashNext->iPg!=pPg->iPg );
+
+        if( iPrev ){
+          assert( iNext==0 );
+          memmove(&pPg->aData[4], pPg->aData, pPg->nData);
+          lsmPutU32(pPg->aData, iPrev);
+          pPg->flags |= PAGE_HASPREV;
+          pPg->aData += 4;
+        }else if( iNext ){
+          assert( iPrev==0 );
+          lsmPutU32(&pPg->aData[pPg->nData], iNext);
+        }else{
+          int nData = pPg->nData;
+          pPg->nData += 4;
+          lsmSortedExpandBtreePage(pPg, nData);
+        }
+
+        pPg->nRef++;
+        for(pp=&pFS->pWaiting; *pp; pp=&(*pp)->pWaitingNext);
+        *pp = pPg;
+        assert( pPg->pWaitingNext==0 );
+
+      }else{
+        i64 iOff;                   /* Offset to write within database file */
+
+        iOff = (i64)pFS->nPagesize * (i64)(pPg->iPg-1);
+        if( fsMmapPage(pFS, pPg->iPg)==0 ){
+          u8 *aData = pPg->aData - (pPg->flags & PAGE_HASPREV);
+          rc = lsmEnvWrite(pFS->pEnv, pFS->fdDb, iOff, aData, pFS->nPagesize);
+        }else if( pPg->flags & PAGE_FREE ){
+          fsGrowMapping(pFS, iOff + pFS->nPagesize, &rc);
+          if( rc==LSM_OK ){
+            u8 *aTo = &((u8 *)(pFS->pMap))[iOff];
+            u8 *aFrom = pPg->aData - (pPg->flags & PAGE_HASPREV);
+            memcpy(aTo, aFrom, pFS->nPagesize);
+            lsmFree(pFS->pEnv, aFrom);
+            pFS->nCacheAlloc--;
+            pPg->aData = aTo + (pPg->flags & PAGE_HASPREV);
+            pPg->flags &= ~PAGE_FREE;
+            fsPageRemoveFromHash(pFS, pPg);
+            pPg->pMappedNext = pFS->pMapped;
+            pFS->pMapped = pPg;
+          }
+        }
+
+        lsmFsFlushWaiting(pFS, &rc);
+        pPg->flags &= ~PAGE_DIRTY;
+        pFS->nWrite++;
+      }
+    }
+  }
+
+  return rc;
+}
+
+/*
+** For non-compressed databases, this function is a no-op. For compressed
+** databases, it adds a padding record to the segment passed as the third
+** argument.
+**
+** The size of the padding records is selected so that the last byte 
+** written is the last byte of a disk sector. This means that if a 
+** snapshot is taken and checkpointed, subsequent worker processes will
+** not write to any sector that contains checkpointed data.
+*/
+int lsmFsSortedPadding(
+  FileSystem *pFS, 
+  Snapshot *pSnapshot,
+  Segment *pSeg
+){
+  int rc = LSM_OK;
+  if( pFS->pCompress && pSeg->iFirst ){
+    LsmPgno iLast2;
+    LsmPgno iLast = pSeg->iLastPg;  /* Current last page of segment */
+    int nPad;                       /* Bytes of padding required */
+    u8 aSz[3];
+
+    iLast2 = (1 + iLast/pFS->szSector) * pFS->szSector - 1;
+    assert( fsPageToBlock(pFS, iLast)==fsPageToBlock(pFS, iLast2) );
+    nPad = (int)(iLast2 - iLast);
+
+    if( iLast2>fsLastPageOnPagesBlock(pFS, iLast) ){
+      nPad -= 4;
+    }
+    assert( nPad>=0 );
+
+    if( nPad>=6 ){
+      pSeg->nSize += nPad;
+      nPad -= 6;
+      putRecordSize(aSz, nPad, 1);
+      fsAppendData(pFS, pSeg, aSz, sizeof(aSz), &rc);
+      memset(pFS->aOBuffer, 0, nPad);
+      fsAppendData(pFS, pSeg, pFS->aOBuffer, nPad, &rc);
+      fsAppendData(pFS, pSeg, aSz, sizeof(aSz), &rc);
+    }else if( nPad>0 ){
+      u8 aBuf[5] = {0,0,0,0,0};
+      aBuf[0] = (u8)nPad;
+      aBuf[nPad-1] = (u8)nPad;
+      fsAppendData(pFS, pSeg, aBuf, nPad, &rc);
+    }
+
+    assert( rc!=LSM_OK 
+        || pSeg->iLastPg==fsLastPageOnPagesBlock(pFS, pSeg->iLastPg)
+        || ((pSeg->iLastPg + 1) % pFS->szSector)==0
+    );
+  }
+
+  return rc;
+}
+
+
+/*
+** Increment the reference count on the page object passed as the first
+** argument.
+*/
+void lsmFsPageRef(Page *pPg){
+  if( pPg ){
+    pPg->nRef++;
+  }
+}
+
+/*
+** Release a page-reference obtained using fsPageGet().
+*/
+int lsmFsPageRelease(Page *pPg){
+  int rc = LSM_OK;
+  if( pPg ){
+    assert( pPg->nRef>0 );
+    pPg->nRef--;
+    if( pPg->nRef==0 ){
+      FileSystem *pFS = pPg->pFS;
+      rc = lsmFsPagePersist(pPg);
+      pFS->nOut--;
+
+      assert( pPg->pFS->pCompress 
+           || fsIsFirst(pPg->pFS, pPg->iPg)==0 
+           || (pPg->flags & PAGE_HASPREV)
+      );
+      pPg->aData -= (pPg->flags & PAGE_HASPREV);
+      pPg->flags &= ~PAGE_HASPREV;
+
+      if( (pPg->flags & PAGE_FREE)==0 ){
+        /* Removed from mapped list */
+        Page **pp;
+        for(pp=&pFS->pMapped; (*pp)!=pPg; pp=&(*pp)->pMappedNext);
+        *pp = pPg->pMappedNext;
+        pPg->pMappedNext = 0;
+
+        /* Add to free list */
+        pPg->pFreeNext = pFS->pFree;
+        pFS->pFree = pPg;
+      }else{
+        fsPageAddToLru(pFS, pPg);
+      }
+    }
+  }
+
+  return rc;
+}
+
+/*
+** Return the total number of pages read from the database file.
+*/
+int lsmFsNRead(FileSystem *pFS){ return pFS->nRead; }
+
+/*
+** Return the total number of pages written to the database file.
+*/
+int lsmFsNWrite(FileSystem *pFS){ return pFS->nWrite; }
+
+/*
+** Return a copy of the environment pointer used by the file-system object.
+*/
+lsm_env *lsmFsEnv(FileSystem *pFS){ 
+  return pFS->pEnv; 
+}
+
+/*
+** Return a copy of the environment pointer used by the file-system object
+** to which this page belongs.
+*/
+lsm_env *lsmPageEnv(Page *pPg) { 
+  return pPg->pFS->pEnv; 
+}
+
+/*
+** Return a pointer to the file-system object associated with the Page
+** passed as the only argument.
+*/
+FileSystem *lsmPageFS(Page *pPg){
+  return pPg->pFS;
+}
+
+/*
+** Return the sector-size as reported by the log file handle.
+*/
+int lsmFsSectorSize(FileSystem *pFS){
+  return pFS->szSector;
+}
+
+/*
+** Helper function for lsmInfoArrayStructure().
+*/
+static Segment *startsWith(Segment *pRun, LsmPgno iFirst){
+  return (iFirst==pRun->iFirst) ? pRun : 0;
+}
+
+/*
+** Return the segment that starts with page iFirst, if any. If no such segment
+** can be found, return NULL.
+*/
+static Segment *findSegment(Snapshot *pWorker, LsmPgno iFirst){
+  Level *pLvl;                    /* Used to iterate through db levels */
+  Segment *pSeg = 0;              /* Pointer to segment to return */
+
+  for(pLvl=lsmDbSnapshotLevel(pWorker); pLvl && pSeg==0; pLvl=pLvl->pNext){
+    if( 0==(pSeg = startsWith(&pLvl->lhs, iFirst)) ){
+      int i;
+      for(i=0; i<pLvl->nRight; i++){
+        if( (pSeg = startsWith(&pLvl->aRhs[i], iFirst)) ) break;
+      }
+    }
+  }
+
+  return pSeg;
+}
+
+/*
+** This function implements the lsm_info(LSM_INFO_ARRAY_STRUCTURE) request.
+** If successful, *pzOut is set to point to a nul-terminated string 
+** containing the array structure and LSM_OK is returned. The caller should
+** eventually free the string using lsmFree().
+**
+** If an error occurs, *pzOut is set to NULL and an LSM error code returned.
+*/
+int lsmInfoArrayStructure(
+  lsm_db *pDb, 
+  int bBlock,                     /* True for block numbers only */
+  LsmPgno iFirst,
+  char **pzOut
+){
+  int rc = LSM_OK;
+  Snapshot *pWorker;              /* Worker snapshot */
+  Segment *pArray = 0;            /* Array to report on */
+  int bUnlock = 0;
+
+  *pzOut = 0;
+  if( iFirst==0 ) return LSM_ERROR;
+
+  /* Obtain the worker snapshot */
+  pWorker = pDb->pWorker;
+  if( !pWorker ){
+    rc = lsmBeginWork(pDb);
+    if( rc!=LSM_OK ) return rc;
+    pWorker = pDb->pWorker;
+    bUnlock = 1;
+  }
+
+  /* Search for the array that starts on page iFirst */
+  pArray = findSegment(pWorker, iFirst);
+
+  if( pArray==0 ){
+    /* Could not find the requested array. This is an error. */
+    rc = LSM_ERROR;
+  }else{
+    FileSystem *pFS = pDb->pFS;
+    LsmString str;
+    int iBlk;
+    int iLastBlk;
+   
+    iBlk = fsPageToBlock(pFS, pArray->iFirst);
+    iLastBlk = fsPageToBlock(pFS, pArray->iLastPg);
+
+    lsmStringInit(&str, pDb->pEnv);
+    if( bBlock ){
+      lsmStringAppendf(&str, "%d", iBlk);
+      while( iBlk!=iLastBlk ){
+        fsBlockNext(pFS, pArray, iBlk, &iBlk);
+        lsmStringAppendf(&str, " %d", iBlk);
+      }
+    }else{
+      lsmStringAppendf(&str, "%d", pArray->iFirst);
+      while( iBlk!=iLastBlk ){
+        lsmStringAppendf(&str, " %d", fsLastPageOnBlock(pFS, iBlk));
+        fsBlockNext(pFS, pArray, iBlk, &iBlk);
+        lsmStringAppendf(&str, " %d", fsFirstPageOnBlock(pFS, iBlk));
+      }
+      lsmStringAppendf(&str, " %d", pArray->iLastPg);
+    }
+
+    *pzOut = str.z;
+  }
+
+  if( bUnlock ){
+    int rcwork = LSM_BUSY;
+    lsmFinishWork(pDb, 0, &rcwork);
+  }
+  return rc;
+}
+
+int lsmFsSegmentContainsPg(
+  FileSystem *pFS, 
+  Segment *pSeg, 
+  LsmPgno iPg, 
+  int *pbRes
+){
+  Redirect *pRedir = pSeg->pRedirect;
+  int rc = LSM_OK;
+  int iBlk;
+  int iLastBlk;
+  int iPgBlock;                   /* Block containing page iPg */
+
+  iPgBlock = fsPageToBlock(pFS, pSeg->iFirst);
+  iBlk = fsRedirectBlock(pRedir, fsPageToBlock(pFS, pSeg->iFirst));
+  iLastBlk = fsRedirectBlock(pRedir, fsPageToBlock(pFS, pSeg->iLastPg));
+
+  while( iBlk!=iLastBlk && iBlk!=iPgBlock && rc==LSM_OK ){
+    rc = fsBlockNext(pFS, pSeg, iBlk, &iBlk);
+  }
+
+  *pbRes = (iBlk==iPgBlock);
+  return rc;
+}
+
+/*
+** This function implements the lsm_info(LSM_INFO_ARRAY_PAGES) request.
+** If successful, *pzOut is set to point to a nul-terminated string 
+** containing the array structure and LSM_OK is returned. The caller should
+** eventually free the string using lsmFree().
+**
+** If an error occurs, *pzOut is set to NULL and an LSM error code returned.
+*/
+int lsmInfoArrayPages(lsm_db *pDb, LsmPgno iFirst, char **pzOut){
+  int rc = LSM_OK;
+  Snapshot *pWorker;              /* Worker snapshot */
+  Segment *pSeg = 0;              /* Array to report on */
+  int bUnlock = 0;
+
+  *pzOut = 0;
+  if( iFirst==0 ) return LSM_ERROR;
+
+  /* Obtain the worker snapshot */
+  pWorker = pDb->pWorker;
+  if( !pWorker ){
+    rc = lsmBeginWork(pDb);
+    if( rc!=LSM_OK ) return rc;
+    pWorker = pDb->pWorker;
+    bUnlock = 1;
+  }
+
+  /* Search for the array that starts on page iFirst */
+  pSeg = findSegment(pWorker, iFirst);
+
+  if( pSeg==0 ){
+    /* Could not find the requested array. This is an error. */
+    rc = LSM_ERROR;
+  }else{
+    Page *pPg = 0;
+    FileSystem *pFS = pDb->pFS;
+    LsmString str;
+
+    lsmStringInit(&str, pDb->pEnv);
+    rc = lsmFsDbPageGet(pFS, pSeg, iFirst, &pPg);
+    while( rc==LSM_OK && pPg ){
+      Page *pNext = 0;
+      lsmStringAppendf(&str, " %lld", lsmFsPageNumber(pPg));
+      rc = lsmFsDbPageNext(pSeg, pPg, 1, &pNext);
+      lsmFsPageRelease(pPg);
+      pPg = pNext;
+    }
+
+    if( rc!=LSM_OK ){
+      lsmFree(pDb->pEnv, str.z);
+    }else{
+      *pzOut = str.z;
+    }
+  }
+
+  if( bUnlock ){
+    int rcwork = LSM_BUSY;
+    lsmFinishWork(pDb, 0, &rcwork);
+  }
+  return rc;
+}
+
+/*
+** The following macros are used by the integrity-check code. Associated with
+** each block in the database is an 8-bit bit mask (the entry in the aUsed[]
+** array). As the integrity-check meanders through the database, it sets the
+** following bits to indicate how each block is used.
+**
+** INTEGRITY_CHECK_FIRST_PG:
+**   First page of block is in use by sorted run.
+**
+** INTEGRITY_CHECK_LAST_PG:
+**   Last page of block is in use by sorted run.
+**
+** INTEGRITY_CHECK_USED:
+**   At least one page of the block is in use by a sorted run.
+**
+** INTEGRITY_CHECK_FREE:
+**   The free block list contains an entry corresponding to this block.
+*/
+#define INTEGRITY_CHECK_FIRST_PG 0x01
+#define INTEGRITY_CHECK_LAST_PG  0x02
+#define INTEGRITY_CHECK_USED     0x04
+#define INTEGRITY_CHECK_FREE     0x08
+
+/*
+** Helper function for lsmFsIntegrityCheck()
+*/
+static void checkBlocks(
+  FileSystem *pFS, 
+  Segment *pSeg,
+  int bExtra,                     /* If true, count the "next" block if any */
+  int nUsed,
+  u8 *aUsed
+){
+  if( pSeg ){
+    if( pSeg && pSeg->nSize>0 ){
+      int rc;
+      int iBlk;                   /* Current block (during iteration) */
+      int iLastBlk;               /* Last block of segment */
+      int iFirstBlk;              /* First block of segment */
+      int bLastIsLastOnBlock;     /* True iLast is the last on its block */
+
+      assert( 0==fsSegmentRedirects(pFS, pSeg) );
+      iBlk = iFirstBlk = fsPageToBlock(pFS, pSeg->iFirst);
+      iLastBlk = fsPageToBlock(pFS, pSeg->iLastPg);
+
+      bLastIsLastOnBlock = (fsLastPageOnBlock(pFS, iLastBlk)==pSeg->iLastPg);
+      assert( iBlk>0 );
+
+      do {
+        /* iBlk is a part of this sorted run. */
+        aUsed[iBlk-1] |= INTEGRITY_CHECK_USED;
+
+        /* If the first page of this block is also part of the segment,
+        ** set the flag to indicate that the first page of iBlk is in use.  
+        */
+        if( fsFirstPageOnBlock(pFS, iBlk)==pSeg->iFirst || iBlk!=iFirstBlk ){
+          assert( (aUsed[iBlk-1] & INTEGRITY_CHECK_FIRST_PG)==0 );
+          aUsed[iBlk-1] |= INTEGRITY_CHECK_FIRST_PG;
+        }
+
+        /* Unless the sorted run finishes before the last page on this block, 
+        ** the last page of this block is also in use.  */
+        if( iBlk!=iLastBlk || bLastIsLastOnBlock ){
+          assert( (aUsed[iBlk-1] & INTEGRITY_CHECK_LAST_PG)==0 );
+          aUsed[iBlk-1] |= INTEGRITY_CHECK_LAST_PG;
+        }
+
+        /* Special case. The sorted run being scanned is the output run of
+        ** a level currently undergoing an incremental merge. The sorted
+        ** run ends on the last page of iBlk, but the next block has already
+        ** been allocated. So mark it as in use as well.  */
+        if( iBlk==iLastBlk && bLastIsLastOnBlock && bExtra ){
+          int iExtra = 0;
+          rc = fsBlockNext(pFS, pSeg, iBlk, &iExtra);
+          assert( rc==LSM_OK );
+
+          assert( aUsed[iExtra-1]==0 );
+          aUsed[iExtra-1] |= INTEGRITY_CHECK_USED;
+          aUsed[iExtra-1] |= INTEGRITY_CHECK_FIRST_PG;
+          aUsed[iExtra-1] |= INTEGRITY_CHECK_LAST_PG;
+        }
+
+        /* Move on to the next block in the sorted run. Or set iBlk to zero
+        ** in order to break out of the loop if this was the last block in
+        ** the run.  */
+        if( iBlk==iLastBlk ){
+          iBlk = 0;
+        }else{
+          rc = fsBlockNext(pFS, pSeg, iBlk, &iBlk);
+          assert( rc==LSM_OK );
+        }
+      }while( iBlk );
+    }
+  }
+}
+
+typedef struct CheckFreelistCtx CheckFreelistCtx;
+struct CheckFreelistCtx {
+  u8 *aUsed;
+  int nBlock;
+};
+static int checkFreelistCb(void *pCtx, int iBlk, i64 iSnapshot){
+  CheckFreelistCtx *p = (CheckFreelistCtx *)pCtx;
+
+  assert( iBlk>=1 );
+  assert( iBlk<=p->nBlock );
+  assert( p->aUsed[iBlk-1]==0 );
+  p->aUsed[iBlk-1] = INTEGRITY_CHECK_FREE;
+  return 0;
+}
+
+/*
+** This function checks that all blocks in the database file are accounted
+** for. For each block, exactly one of the following must be true:
+**
+**   + the block is part of a sorted run, or
+**   + the block is on the free-block list
+**
+** This function also checks that there are no references to blocks with
+** out-of-range block numbers.
+**
+** If no errors are found, non-zero is returned. If an error is found, an
+** assert() fails.
+*/
+int lsmFsIntegrityCheck(lsm_db *pDb){
+  CheckFreelistCtx ctx;
+  FileSystem *pFS = pDb->pFS;
+  int i;
+  int rc;
+  Freelist freelist = {0, 0, 0};
+  u8 *aUsed;
+  Level *pLevel;
+  Snapshot *pWorker = pDb->pWorker;
+  int nBlock = pWorker->nBlock;
+
+#if 0 
+  static int nCall = 0;
+  nCall++;
+  printf("%d calls\n", nCall);
+#endif
+
+  aUsed = lsmMallocZero(pDb->pEnv, nBlock);
+  if( aUsed==0 ){
+    /* Malloc has failed. Since this function is only called within debug
+    ** builds, this probably means the user is running an OOM injection test.
+    ** Regardless, it will not be possible to run the integrity-check at this
+    ** time, so assume the database is Ok and return non-zero. */
+    return 1;
+  }
+
+  for(pLevel=pWorker->pLevel; pLevel; pLevel=pLevel->pNext){
+    int j;
+    checkBlocks(pFS, &pLevel->lhs, (pLevel->nRight!=0), nBlock, aUsed);
+    for(j=0; j<pLevel->nRight; j++){
+      checkBlocks(pFS, &pLevel->aRhs[j], 0, nBlock, aUsed);
+    }
+  }
+
+  /* Mark all blocks in the free-list as used */
+  ctx.aUsed = aUsed;
+  ctx.nBlock = nBlock;
+  rc = lsmWalkFreelist(pDb, 0, checkFreelistCb, (void *)&ctx);
+
+  if( rc==LSM_OK ){
+    for(i=0; i<nBlock; i++) assert( aUsed[i]!=0 );
+  }
+
+  lsmFree(pDb->pEnv, aUsed);
+  lsmFree(pDb->pEnv, freelist.aEntry);
+
+  return 1;
+}
+
+#ifndef NDEBUG
+/*
+** Return true if pPg happens to be the last page in segment pSeg. Or false
+** otherwise. This function is only invoked as part of assert() conditions.
+*/
+int lsmFsDbPageIsLast(Segment *pSeg, Page *pPg){
+  if( pPg->pFS->pCompress ){
+    LsmPgno iNext = 0;
+    int rc;
+    rc = fsNextPageOffset(pPg->pFS, pSeg, pPg->iPg, pPg->nCompress+6, &iNext);
+    return (rc!=LSM_OK || iNext==0);
+  }
+  return (pPg->iPg==pSeg->iLastPg);
+}
+#endif
diff --git a/ext/lsm1/lsm_log.c b/ext/lsm1/lsm_log.c
new file mode 100644
index 0000000000000000000000000000000000000000..a66e40bccd58bb2a61ef6f4be6ab1fee7d76d770
--- /dev/null
+++ b/ext/lsm1/lsm_log.c
@@ -0,0 +1,1156 @@
+/*
+** 2011-08-13
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** This file contains the implementation of LSM database logging. Logging
+** has one purpose in LSM - to make transactions durable.
+**
+** When data is written to an LSM database, it is initially stored in an
+** in-memory tree structure. Since this structure is in volatile memory,
+** if a power failure or application crash occurs it may be lost. To
+** prevent loss of data in this case, each time a record is written to the
+** in-memory tree an equivalent record is appended to the log on disk.
+** If a power failure or application crash does occur, data can be recovered
+** by reading the log.
+**
+** A log file consists of the following types of records representing data
+** written into the database:
+**
+**   LOG_WRITE:  A key-value pair written to the database.
+**   LOG_DELETE: A delete key issued to the database.
+**   LOG_COMMIT: A transaction commit.
+**
+** And the following types of records for ancillary purposes..
+**
+**   LOG_EOF:    A record indicating the end of a log file.
+**   LOG_PAD1:   A single byte padding record.
+**   LOG_PAD2:   An N byte padding record (N>1).
+**   LOG_JUMP:   A pointer to another offset within the log file.
+**
+** Each transaction written to the log contains one or more LOG_WRITE and/or
+** LOG_DELETE records, followed by a LOG_COMMIT record. The LOG_COMMIT record
+** contains an 8-byte checksum based on all previous data written to the
+** log file.
+**
+** LOG CHECKSUMS & RECOVERY
+**
+**   Checksums are found in two types of log records: LOG_COMMIT and
+**   LOG_CKSUM records. In order to recover content from a log, a client
+**   reads each record from the start of the log, calculating a checksum as
+**   it does. Each time a LOG_COMMIT or LOG_CKSUM is encountered, the 
+**   recovery process verifies that the checksum stored in the log 
+**   matches the calculated checksum. If it does not, the recovery process
+**   can stop reading the log.
+**
+**   If a recovery process reads records (other than COMMIT or CKSUM) 
+**   consisting of at least LSM_CKSUM_MAXDATA bytes, then the next record in
+**   the log must be either a LOG_CKSUM or LOG_COMMIT record. If it is
+**   not, the recovery process also stops reading the log.
+**
+**   To recover the log file, it must be read twice. The first time to 
+**   determine the location of the last valid commit record. And the second
+**   time to load data into the in-memory tree.
+**
+**   Todo: Surely there is a better way...
+**
+** LOG WRAPPING
+**
+**   If the log file were never deleted or wrapped, it would be possible to
+**   read it from start to end each time is required recovery (i.e each time
+**   the number of database clients changes from 0 to 1). Effectively reading
+**   the entire history of the database each time. This would quickly become 
+**   inefficient. Additionally, since the log file would grow without bound,
+**   it wastes storage space.
+**
+**   Instead, part of each checkpoint written into the database file contains 
+**   a log offset (and other information required to read the log starting at
+**   at this offset) at which to begin recovery. Offset $O.
+**
+**   Once a checkpoint has been written and synced into the database file, it
+**   is guaranteed that no recovery process will need to read any data before
+**   offset $O of the log file. It is therefore safe to begin overwriting
+**   any data that occurs before offset $O.
+**
+**   This implementation separates the log into three regions mapped into
+**   the log file - regions 0, 1 and 2. During recovery, regions are read
+**   in ascending order (i.e. 0, then 1, then 2). Each region is zero or
+**   more bytes in size.
+**
+**     |---1---|..|--0--|.|--2--|....
+**
+**   New records are always appended to the end of region 2.
+**
+**   Initially (when it is empty), all three regions are zero bytes in size.
+**   Each of them are located at the beginning of the file. As records are
+**   added to the log, region 2 grows, so that the log consists of a zero
+**   byte region 1, followed by a zero byte region 0, followed by an N byte
+**   region 2. After one or more checkpoints have been written to disk, 
+**   the start point of region 2 is moved to $O. For example:
+**
+**     A) ||.........|--2--|....
+**   
+**   (both regions 0 and 1 are 0 bytes in size at offset 0).
+**
+**   Eventually, the log wraps around to write new records into the start.
+**   At this point, region 2 is renamed to region 0. Region 0 is renamed
+**   to region 2. After appending a few records to the new region 2, the
+**   log file looks like this:
+**
+**     B) ||--2--|...|--0--|....
+**
+**   (region 1 is still 0 bytes in size, located at offset 0).
+**
+**   Any checkpoints made at this point may reduce the size of region 0.
+**   However, if they do not, and region 2 expands so that it is about to
+**   overwrite the start of region 0, then region 2 is renamed to region 1,
+**   and a new region 2 created at the end of the file following the existing
+**   region 0.
+**
+**     C) |---1---|..|--0--|.|-2-|
+**
+**   In this state records are appended to region 2 until checkpoints have
+**   contracted regions 0 AND 1 UNTil they are both zero bytes in size. They 
+**   are then shifted to the start of the log file, leaving the system in 
+**   the equivalent of state A above.
+**
+**   Alternatively, state B may transition directly to state A if the size
+**   of region 0 is reduced to zero bytes before region 2 threatens to 
+**   encroach upon it.
+**
+** LOG_PAD1 & LOG_PAD2 RECORDS
+**
+**   PAD1 and PAD2 records may appear in a log file at any point. They allow
+**   a process writing the log file align the beginning of transactions with 
+**   the beginning of disk sectors, which increases robustness.
+**
+** RECORD FORMATS:
+**
+**   LOG_EOF:    * A single 0x00 byte.
+**
+**   LOG_PAD1:   * A single 0x01 byte.
+**
+**   LOG_PAD2:   * A single 0x02 byte, followed by
+**               * The number of unused bytes (N) as a varint,
+**               * An N byte block of unused space.
+**
+**   LOG_COMMIT: * A single 0x03 byte.
+**               * An 8-byte checksum.
+**
+**   LOG_JUMP:   * A single 0x04 byte.
+**               * Absolute file offset to jump to, encoded as a varint.
+**
+**   LOG_WRITE:  * A single 0x06 or 0x07 byte, 
+**               * The number of bytes in the key, encoded as a varint, 
+**               * The number of bytes in the value, encoded as a varint, 
+**               * If the first byte was 0x07, an 8 byte checksum.
+**               * The key data,
+**               * The value data.
+**
+**   LOG_DELETE: * A single 0x08 or 0x09 byte, 
+**               * The number of bytes in the key, encoded as a varint, 
+**               * If the first byte was 0x09, an 8 byte checksum.
+**               * The key data.
+**
+**   Varints are as described in lsm_varint.c (SQLite 4 format).
+**
+** CHECKSUMS:
+**
+**   The checksum is calculated using two 32-bit unsigned integers, s0 and
+**   s1. The initial value for both is 42. It is updated each time a record
+**   is written into the log file by treating the encoded (binary) record as 
+**   an array of 32-bit little-endian integers. Then, if x[] is the integer
+**   array, updating the checksum accumulators as follows:
+**
+**     for i from 0 to n-1 step 2:
+**       s0 += x[i] + s1;
+**       s1 += x[i+1] + s0;
+**     endfor
+**
+**   If the record is not an even multiple of 8-bytes in size it is padded
+**   with zeroes to make it so before the checksum is updated.
+**
+**   The checksum stored in a COMMIT, WRITE or DELETE is based on all bytes
+**   up to the start of the 8-byte checksum itself, including the COMMIT,
+**   WRITE or DELETE fields that appear before the checksum in the record.
+**
+** VARINT FORMAT
+**
+** See lsm_varint.c.
+*/
+
+#ifndef _LSM_INT_H
+# include "lsmInt.h"
+#endif
+
+/* Log record types */
+#define LSM_LOG_EOF          0x00
+#define LSM_LOG_PAD1         0x01
+#define LSM_LOG_PAD2         0x02
+#define LSM_LOG_COMMIT       0x03
+#define LSM_LOG_JUMP         0x04
+
+#define LSM_LOG_WRITE        0x06
+#define LSM_LOG_WRITE_CKSUM  0x07
+
+#define LSM_LOG_DELETE       0x08
+#define LSM_LOG_DELETE_CKSUM 0x09
+
+#define LSM_LOG_DRANGE       0x0A
+#define LSM_LOG_DRANGE_CKSUM 0x0B
+
+/* Require a checksum every 32KB. */
+#define LSM_CKSUM_MAXDATA (32*1024)
+
+/* Do not wrap a log file smaller than this in bytes. */
+#define LSM_MIN_LOGWRAP      (128*1024)
+
+/*
+** szSector:
+**   Commit records must be aligned to end on szSector boundaries. If
+**   the safety-mode is set to NORMAL or OFF, this value is 1. Otherwise,
+**   if the safety-mode is set to FULL, it is the size of the file-system
+**   sectors as reported by lsmFsSectorSize().
+*/
+struct LogWriter {
+  u32 cksum0;                     /* Checksum 0 at offset iOff */
+  u32 cksum1;                     /* Checksum 1 at offset iOff */
+  int iCksumBuf;                  /* Bytes of buf that have been checksummed */
+  i64 iOff;                       /* Offset at start of buffer buf */
+  int szSector;                   /* Sector size for this transaction */
+  LogRegion jump;                 /* Avoid writing to this region */
+  i64 iRegion1End;                /* End of first region written by trans */
+  i64 iRegion2Start;              /* Start of second regions written by trans */
+  LsmString buf;                  /* Buffer containing data not yet written */
+};
+
+/*
+** Return the result of interpreting the first 4 bytes in buffer aIn as 
+** a 32-bit unsigned little-endian integer.
+*/
+static u32 getU32le(u8 *aIn){
+  return ((u32)aIn[3] << 24) 
+       + ((u32)aIn[2] << 16) 
+       + ((u32)aIn[1] << 8) 
+       + ((u32)aIn[0]);
+}
+
+
+/*
+** This function is the same as logCksum(), except that pointer "a" need
+** not be aligned to an 8-byte boundary or padded with zero bytes. This
+** version is slower, but sometimes more convenient to use.
+*/
+static void logCksumUnaligned(
+  char *z,                        /* Input buffer */
+  int n,                          /* Size of input buffer in bytes */
+  u32 *pCksum0,                   /* IN/OUT: Checksum value 1 */
+  u32 *pCksum1                    /* IN/OUT: Checksum value 2 */
+){
+  u8 *a = (u8 *)z;
+  u32 cksum0 = *pCksum0;
+  u32 cksum1 = *pCksum1;
+  int nIn = (n/8) * 8;
+  int i;
+
+  assert( n>0 );
+  for(i=0; i<nIn; i+=8){
+    cksum0 += getU32le(&a[i]) + cksum1;
+    cksum1 += getU32le(&a[i+4]) + cksum0;
+  }
+
+  if( nIn!=n ){
+    u8 aBuf[8] = {0, 0, 0, 0, 0, 0, 0, 0};
+    assert( (n-nIn)<8 && n>nIn );
+    memcpy(aBuf, &a[nIn], n-nIn);
+    cksum0 += getU32le(aBuf) + cksum1;
+    cksum1 += getU32le(&aBuf[4]) + cksum0;
+  }
+
+  *pCksum0 = cksum0;
+  *pCksum1 = cksum1;
+}
+
+/*
+** Update pLog->cksum0 and pLog->cksum1 so that the first nBuf bytes in the 
+** write buffer (pLog->buf) are included in the checksum.
+*/
+static void logUpdateCksum(LogWriter *pLog, int nBuf){
+  assert( (pLog->iCksumBuf % 8)==0 );
+  assert( pLog->iCksumBuf<=nBuf );
+  assert( (nBuf % 8)==0 || nBuf==pLog->buf.n );
+  if( nBuf>pLog->iCksumBuf ){
+    logCksumUnaligned(
+        &pLog->buf.z[pLog->iCksumBuf], nBuf-pLog->iCksumBuf, 
+        &pLog->cksum0, &pLog->cksum1
+    );
+  }
+  pLog->iCksumBuf = nBuf;
+}
+
+static i64 firstByteOnSector(LogWriter *pLog, i64 iOff){
+  return (iOff / pLog->szSector) * pLog->szSector;
+}
+static i64 lastByteOnSector(LogWriter *pLog, i64 iOff){
+  return firstByteOnSector(pLog, iOff) + pLog->szSector - 1;
+}
+
+/*
+** If possible, reclaim log file space. Log file space is reclaimed after
+** a snapshot that points to the same data in the database file is synced
+** into the db header.
+*/
+static int logReclaimSpace(lsm_db *pDb){
+  int rc;
+  int iMeta;
+  int bRotrans;                   /* True if there exists some ro-trans */
+
+  /* Test if there exists some other connection with a read-only transaction
+  ** open. If there does, then log file space may not be reclaimed.  */
+  rc = lsmDetectRoTrans(pDb, &bRotrans);
+  if( rc!=LSM_OK || bRotrans ) return rc;
+
+  iMeta = (int)pDb->pShmhdr->iMetaPage;
+  if( iMeta==1 || iMeta==2 ){
+    DbLog *pLog = &pDb->treehdr.log;
+    i64 iSyncedId;
+
+    /* Read the snapshot-id of the snapshot stored on meta-page iMeta. Note
+    ** that in theory, the value read is untrustworthy (due to a race 
+    ** condition - see comments above lsmFsReadSyncedId()). So it is only 
+    ** ever used to conclude that no log space can be reclaimed. If it seems
+    ** to indicate that it may be possible to reclaim log space, a
+    ** second call to lsmCheckpointSynced() (which does return trustworthy
+    ** values) is made below to confirm.  */
+    rc = lsmFsReadSyncedId(pDb, iMeta, &iSyncedId);
+
+    if( rc==LSM_OK && pLog->iSnapshotId!=iSyncedId ){
+      i64 iSnapshotId = 0;
+      i64 iOff = 0;
+      rc = lsmCheckpointSynced(pDb, &iSnapshotId, &iOff, 0);
+      if( rc==LSM_OK && pLog->iSnapshotId<iSnapshotId ){
+        int iRegion;
+        for(iRegion=0; iRegion<3; iRegion++){
+          LogRegion *p = &pLog->aRegion[iRegion];
+          if( iOff>=p->iStart && iOff<=p->iEnd ) break;
+          p->iStart = 0;
+          p->iEnd = 0;
+        }
+        assert( iRegion<3 );
+        pLog->aRegion[iRegion].iStart = iOff;
+        pLog->iSnapshotId = iSnapshotId;
+      }
+    }
+  }
+  return rc;
+}
+
+/*
+** This function is called when a write-transaction is first opened. It
+** is assumed that the caller is holding the client-mutex when it is 
+** called.
+**
+** Before returning, this function allocates the LogWriter object that
+** will be used to write to the log file during the write transaction.
+** LSM_OK is returned if no error occurs, otherwise an LSM error code.
+*/
+int lsmLogBegin(lsm_db *pDb){
+  int rc = LSM_OK;
+  LogWriter *pNew;
+  LogRegion *aReg;
+
+  if( pDb->bUseLog==0 ) return LSM_OK;
+
+  /* If the log file has not yet been opened, open it now. Also allocate
+  ** the LogWriter structure, if it has not already been allocated.  */
+  rc = lsmFsOpenLog(pDb, 0);
+  if( pDb->pLogWriter==0 ){
+    pNew = lsmMallocZeroRc(pDb->pEnv, sizeof(LogWriter), &rc);
+    if( pNew ){
+      lsmStringInit(&pNew->buf, pDb->pEnv);
+      rc = lsmStringExtend(&pNew->buf, 2);
+    }
+    pDb->pLogWriter = pNew;
+  }else{
+    pNew = pDb->pLogWriter;
+    assert( (u8 *)(&pNew[1])==(u8 *)(&((&pNew->buf)[1])) );
+    memset(pNew, 0, ((u8 *)&pNew->buf) - (u8 *)pNew);
+    pNew->buf.n = 0;
+  }
+
+  if( rc==LSM_OK ){
+    /* The following call detects whether or not a new snapshot has been 
+    ** synced into the database file. If so, it updates the contents of
+    ** the pDb->treehdr.log structure to reclaim any space in the log
+    ** file that is no longer required. 
+    **
+    ** TODO: Calling this every transaction is overkill. And since the 
+    ** call has to read and checksum a snapshot from the database file,
+    ** it is expensive. It would be better to figure out a way so that
+    ** this is only called occasionally - say for every 32KB written to 
+    ** the log file.
+    */
+    rc = logReclaimSpace(pDb);
+  }
+  if( rc!=LSM_OK ){
+    lsmLogClose(pDb);
+    return rc;
+  }
+
+  /* Set the effective sector-size for this transaction. Sectors are assumed
+  ** to be one byte in size if the safety-mode is OFF or NORMAL, or as
+  ** reported by lsmFsSectorSize if it is FULL.  */
+  if( pDb->eSafety==LSM_SAFETY_FULL ){
+    pNew->szSector = lsmFsSectorSize(pDb->pFS);
+    assert( pNew->szSector>0 );
+  }else{
+    pNew->szSector = 1;
+  }
+
+  /* There are now three scenarios:
+  **
+  **   1) Regions 0 and 1 are both zero bytes in size and region 2 begins
+  **      at a file offset greater than LSM_MIN_LOGWRAP. In this case, wrap
+  **      around to the start and write data into the start of the log file. 
+  **
+  **   2) Region 1 is zero bytes in size and region 2 occurs earlier in the 
+  **      file than region 0. In this case, append data to region 2, but
+  **      remember to jump over region 1 if required.
+  **
+  **   3) Region 2 is the last in the file. Append to it.
+  */
+  aReg = &pDb->treehdr.log.aRegion[0];
+
+  assert( aReg[0].iEnd==0 || aReg[0].iEnd>aReg[0].iStart );
+  assert( aReg[1].iEnd==0 || aReg[1].iEnd>aReg[1].iStart );
+
+  pNew->cksum0 = pDb->treehdr.log.cksum0;
+  pNew->cksum1 = pDb->treehdr.log.cksum1;
+
+  if( aReg[0].iEnd==0 && aReg[1].iEnd==0 && aReg[2].iStart>=LSM_MIN_LOGWRAP ){
+    /* Case 1. Wrap around to the start of the file. Write an LSM_LOG_JUMP 
+    ** into the log file in this case. Pad it out to 8 bytes using a PAD2
+    ** record so that the checksums can be updated immediately.  */
+    u8 aJump[] = { 
+      LSM_LOG_PAD2, 0x04, 0x00, 0x00, 0x00, 0x00, LSM_LOG_JUMP, 0x00 
+    };
+
+    lsmStringBinAppend(&pNew->buf, aJump, sizeof(aJump));
+    logUpdateCksum(pNew, pNew->buf.n);
+    rc = lsmFsWriteLog(pDb->pFS, aReg[2].iEnd, &pNew->buf);
+    pNew->iCksumBuf = pNew->buf.n = 0;
+
+    aReg[2].iEnd += 8;
+    pNew->jump = aReg[0] = aReg[2];
+    aReg[2].iStart = aReg[2].iEnd = 0;
+  }else if( aReg[1].iEnd==0 && aReg[2].iEnd<aReg[0].iEnd ){
+    /* Case 2. */
+    pNew->iOff = aReg[2].iEnd;
+    pNew->jump = aReg[0];
+  }else{
+    /* Case 3. */
+    assert( aReg[2].iStart>=aReg[0].iEnd && aReg[2].iStart>=aReg[1].iEnd );
+    pNew->iOff = aReg[2].iEnd;
+  }
+
+  if( pNew->jump.iStart ){
+    i64 iRound;
+    assert( pNew->jump.iStart>pNew->iOff );
+
+    iRound = firstByteOnSector(pNew, pNew->jump.iStart);
+    if( iRound>pNew->iOff ) pNew->jump.iStart = iRound;
+    pNew->jump.iEnd = lastByteOnSector(pNew, pNew->jump.iEnd);
+  }
+
+  assert( pDb->pLogWriter==pNew );
+  return rc;
+}
+
+/*
+** This function is called when a write-transaction is being closed.
+** Parameter bCommit is true if the transaction is being committed,
+** or false otherwise. The caller must hold the client-mutex to call
+** this function.
+**
+** A call to this function deletes the LogWriter object allocated by
+** lsmLogBegin(). If the transaction is being committed, the shared state
+** in *pLog is updated before returning.
+*/
+void lsmLogEnd(lsm_db *pDb, int bCommit){
+  DbLog *pLog;
+  LogWriter *p;
+  p = pDb->pLogWriter;
+
+  if( p==0 ) return;
+  pLog = &pDb->treehdr.log;
+
+  if( bCommit ){
+    pLog->aRegion[2].iEnd = p->iOff;
+    pLog->cksum0 = p->cksum0;
+    pLog->cksum1 = p->cksum1;
+    if( p->iRegion1End ){
+      /* This happens when the transaction had to jump over some other
+      ** part of the log.  */
+      assert( pLog->aRegion[1].iEnd==0 );
+      assert( pLog->aRegion[2].iStart<p->iRegion1End );
+      pLog->aRegion[1].iStart = pLog->aRegion[2].iStart;
+      pLog->aRegion[1].iEnd = p->iRegion1End;
+      pLog->aRegion[2].iStart = p->iRegion2Start;
+    }
+  }
+}
+
+static int jumpIfRequired(
+  lsm_db *pDb,
+  LogWriter *pLog,
+  int nReq,
+  int *pbJump
+){
+  /* Determine if it is necessary to add an LSM_LOG_JUMP to jump over the
+  ** jump region before writing the LSM_LOG_WRITE or DELETE record. This
+  ** is necessary if there is insufficient room between the current offset
+  ** and the jump region to fit the new WRITE/DELETE record and the largest
+  ** possible JUMP record with up to 7 bytes of padding (a total of 17 
+  ** bytes).  */
+  if( (pLog->jump.iStart > (pLog->iOff + pLog->buf.n))
+   && (pLog->jump.iStart < (pLog->iOff + pLog->buf.n + (nReq + 17))) 
+  ){
+    int rc;                       /* Return code */
+    i64 iJump;                    /* Offset to jump to */
+    u8 aJump[10];                 /* Encoded jump record */
+    int nJump;                    /* Valid bytes in aJump[] */
+    int nPad;                     /* Bytes of padding required */
+
+    /* Serialize the JUMP record */
+    iJump = pLog->jump.iEnd+1;
+    aJump[0] = LSM_LOG_JUMP;
+    nJump = 1 + lsmVarintPut64(&aJump[1], iJump);
+
+    /* Adding padding to the contents of the buffer so that it will be a 
+    ** multiple of 8 bytes in size after the JUMP record is appended. This
+    ** is not strictly required, it just makes the keeping the running 
+    ** checksum up to date in this file a little simpler.  */
+    nPad = (pLog->buf.n + nJump) % 8;
+    if( nPad ){
+      u8 aPad[7] = {0,0,0,0,0,0,0};
+      nPad = 8-nPad;
+      if( nPad==1 ){
+        aPad[0] = LSM_LOG_PAD1;
+      }else{
+        aPad[0] = LSM_LOG_PAD2;
+        aPad[1] = (u8)(nPad-2);
+      }
+      rc = lsmStringBinAppend(&pLog->buf, aPad, nPad);
+      if( rc!=LSM_OK ) return rc;
+    }
+
+    /* Append the JUMP record to the buffer. Then flush the buffer to disk
+    ** and update the checksums. The next write to the log file (assuming
+    ** there is no transaction rollback) will be to offset iJump (just past
+    ** the jump region).  */
+    rc = lsmStringBinAppend(&pLog->buf, aJump, nJump);
+    if( rc!=LSM_OK ) return rc;
+    assert( (pLog->buf.n % 8)==0 );
+    rc = lsmFsWriteLog(pDb->pFS, pLog->iOff, &pLog->buf);
+    if( rc!=LSM_OK ) return rc;
+    logUpdateCksum(pLog, pLog->buf.n);
+    pLog->iRegion1End = (pLog->iOff + pLog->buf.n);
+    pLog->iRegion2Start = iJump;
+    pLog->iOff = iJump;
+    pLog->iCksumBuf = pLog->buf.n = 0;
+    if( pbJump ) *pbJump = 1;
+  }
+
+  return LSM_OK;
+}
+
+static int logCksumAndFlush(lsm_db *pDb){
+  int rc;                         /* Return code */
+  LogWriter *pLog = pDb->pLogWriter;
+
+  /* Calculate the checksum value. Append it to the buffer. */
+  logUpdateCksum(pLog, pLog->buf.n);
+  lsmPutU32((u8 *)&pLog->buf.z[pLog->buf.n], pLog->cksum0);
+  pLog->buf.n += 4;
+  lsmPutU32((u8 *)&pLog->buf.z[pLog->buf.n], pLog->cksum1);
+  pLog->buf.n += 4;
+
+  /* Write the contents of the buffer to disk. */
+  rc = lsmFsWriteLog(pDb->pFS, pLog->iOff, &pLog->buf);
+  pLog->iOff += pLog->buf.n;
+  pLog->iCksumBuf = pLog->buf.n = 0;
+
+  return rc;
+}
+
+/*
+** Write the contents of the log-buffer to disk. Then write either a CKSUM
+** or COMMIT record, depending on the value of parameter eType.
+*/
+static int logFlush(lsm_db *pDb, int eType){
+  int rc;
+  int nReq;
+  LogWriter *pLog = pDb->pLogWriter;
+  
+  assert( eType==LSM_LOG_COMMIT );
+  assert( pLog );
+
+  /* Commit record is always 9 bytes in size. */
+  nReq = 9;
+  if( eType==LSM_LOG_COMMIT && pLog->szSector>1 ) nReq += pLog->szSector + 17;
+  rc = jumpIfRequired(pDb, pLog, nReq, 0);
+
+  /* If this is a COMMIT, add padding to the log so that the COMMIT record
+  ** is aligned against the end of a disk sector. In other words, add padding
+  ** so that the first byte following the COMMIT record lies on a different
+  ** sector.  */
+  if( eType==LSM_LOG_COMMIT && pLog->szSector>1 ){
+    int nPad;                     /* Bytes of padding to add */
+
+    /* Determine the value of nPad. */
+    nPad = ((pLog->iOff + pLog->buf.n + 9) % pLog->szSector);
+    if( nPad ) nPad = pLog->szSector - nPad;
+    rc = lsmStringExtend(&pLog->buf, nPad);
+    if( rc!=LSM_OK ) return rc;
+
+    while( nPad ){
+      if( nPad==1 ){
+        pLog->buf.z[pLog->buf.n++] = LSM_LOG_PAD1;
+        nPad = 0;
+      }else{
+        int n = LSM_MIN(200, nPad-2);
+        pLog->buf.z[pLog->buf.n++] = LSM_LOG_PAD2;
+        pLog->buf.z[pLog->buf.n++] = (char)n;
+        nPad -= 2;
+        memset(&pLog->buf.z[pLog->buf.n], 0x2B, n);
+        pLog->buf.n += n;
+        nPad -= n;
+      }
+    }
+  }
+
+  /* Make sure there is room in the log-buffer to add the CKSUM or COMMIT
+  ** record. Then add the first byte of it.  */
+  rc = lsmStringExtend(&pLog->buf, 9);
+  if( rc!=LSM_OK ) return rc;
+  pLog->buf.z[pLog->buf.n++] = (char)eType;
+  memset(&pLog->buf.z[pLog->buf.n], 0, 8);
+
+  rc = logCksumAndFlush(pDb);
+
+  /* If this is a commit and synchronous=full, sync the log to disk. */
+  if( rc==LSM_OK && eType==LSM_LOG_COMMIT && pDb->eSafety==LSM_SAFETY_FULL ){
+    rc = lsmFsSyncLog(pDb->pFS);
+  }
+  return rc;
+}
+
+/*
+** Append an LSM_LOG_WRITE (if nVal>=0) or LSM_LOG_DELETE (if nVal<0) 
+** record to the database log.
+*/
+int lsmLogWrite(
+  lsm_db *pDb,                    /* Database handle */
+  int eType,
+  void *pKey, int nKey,           /* Database key to write to log */
+  void *pVal, int nVal            /* Database value (or nVal<0) to write */
+){
+  int rc = LSM_OK;
+  LogWriter *pLog;                /* Log object to write to */
+  int nReq;                       /* Bytes of space required in log */
+  int bCksum = 0;                 /* True to embed a checksum in this record */
+
+  assert( eType==LSM_WRITE || eType==LSM_DELETE || eType==LSM_DRANGE );
+  assert( LSM_LOG_WRITE==LSM_WRITE );
+  assert( LSM_LOG_DELETE==LSM_DELETE );
+  assert( LSM_LOG_DRANGE==LSM_DRANGE );
+  assert( (eType==LSM_LOG_DELETE)==(nVal<0) );
+
+  if( pDb->bUseLog==0 ) return LSM_OK;
+  pLog = pDb->pLogWriter;
+
+  /* Determine how many bytes of space are required, assuming that a checksum
+  ** will be embedded in this record (even though it may not be).  */
+  nReq = 1 + lsmVarintLen32(nKey) + 8 + nKey;
+  if( eType!=LSM_LOG_DELETE ) nReq += lsmVarintLen32(nVal) + nVal;
+
+  /* Jump over the jump region if required. Set bCksum to true to tell the
+  ** code below to include a checksum in the record if either (a) writing
+  ** this record would mean that more than LSM_CKSUM_MAXDATA bytes of data
+  ** have been written to the log since the last checksum, or (b) the jump
+  ** is taken.  */
+  rc = jumpIfRequired(pDb, pLog, nReq, &bCksum);
+  if( (pLog->buf.n+nReq) > LSM_CKSUM_MAXDATA ) bCksum = 1;
+
+  if( rc==LSM_OK ){
+    rc = lsmStringExtend(&pLog->buf, nReq);
+  }
+  if( rc==LSM_OK ){
+    u8 *a = (u8 *)&pLog->buf.z[pLog->buf.n];
+    
+    /* Write the record header - the type byte followed by either 1 (for
+    ** DELETE) or 2 (for WRITE) varints.  */
+    assert( LSM_LOG_WRITE_CKSUM == (LSM_LOG_WRITE | 0x0001) );
+    assert( LSM_LOG_DELETE_CKSUM == (LSM_LOG_DELETE | 0x0001) );
+    assert( LSM_LOG_DRANGE_CKSUM == (LSM_LOG_DRANGE | 0x0001) );
+    *(a++) = (u8)eType | (u8)bCksum;
+    a += lsmVarintPut32(a, nKey);
+    if( eType!=LSM_LOG_DELETE ) a += lsmVarintPut32(a, nVal);
+
+    if( bCksum ){
+      pLog->buf.n = (a - (u8 *)pLog->buf.z);
+      rc = logCksumAndFlush(pDb);
+      a = (u8 *)&pLog->buf.z[pLog->buf.n];
+    }
+
+    memcpy(a, pKey, nKey);
+    a += nKey;
+    if( eType!=LSM_LOG_DELETE ){
+      memcpy(a, pVal, nVal);
+      a += nVal;
+    }
+    pLog->buf.n = a - (u8 *)pLog->buf.z;
+    assert( pLog->buf.n<=pLog->buf.nAlloc );
+  }
+
+  return rc;
+}
+
+/*
+** Append an LSM_LOG_COMMIT record to the database log.
+*/
+int lsmLogCommit(lsm_db *pDb){
+  if( pDb->bUseLog==0 ) return LSM_OK;
+  return logFlush(pDb, LSM_LOG_COMMIT);
+}
+
+/*
+** Store the current offset and other checksum related information in the
+** structure *pMark. Later, *pMark can be passed to lsmLogSeek() to "rewind"
+** the LogWriter object to the current log file offset. This is used when
+** rolling back savepoint transactions.
+*/
+void lsmLogTell(
+  lsm_db *pDb,                    /* Database handle */
+  LogMark *pMark                  /* Populate this object with current offset */
+){
+  LogWriter *pLog;
+  int nCksum;
+
+  if( pDb->bUseLog==0 ) return;
+  pLog = pDb->pLogWriter;
+  nCksum = pLog->buf.n & 0xFFFFFFF8;
+  logUpdateCksum(pLog, nCksum);
+  assert( pLog->iCksumBuf==nCksum );
+  pMark->nBuf = pLog->buf.n - nCksum;
+  memcpy(pMark->aBuf, &pLog->buf.z[nCksum], pMark->nBuf);
+
+  pMark->iOff = pLog->iOff + pLog->buf.n;
+  pMark->cksum0 = pLog->cksum0;
+  pMark->cksum1 = pLog->cksum1;
+}
+
+/*
+** Seek (rewind) back to the log file offset stored by an ealier call to
+** lsmLogTell() in *pMark.
+*/
+void lsmLogSeek(
+  lsm_db *pDb,                    /* Database handle */
+  LogMark *pMark                  /* Object containing log offset to seek to */
+){
+  LogWriter *pLog;
+
+  if( pDb->bUseLog==0 ) return;
+  pLog = pDb->pLogWriter;
+
+  assert( pMark->iOff<=pLog->iOff+pLog->buf.n );
+  if( (pMark->iOff & 0xFFFFFFF8)>=pLog->iOff ){
+    pLog->buf.n = (int)(pMark->iOff - pLog->iOff);
+    pLog->iCksumBuf = (pLog->buf.n & 0xFFFFFFF8);
+  }else{
+    pLog->buf.n = pMark->nBuf;
+    memcpy(pLog->buf.z, pMark->aBuf, pMark->nBuf);
+    pLog->iCksumBuf = 0;
+    pLog->iOff = pMark->iOff - pMark->nBuf;
+  }
+  pLog->cksum0 = pMark->cksum0;
+  pLog->cksum1 = pMark->cksum1;
+
+  if( pMark->iOff > pLog->iRegion1End ) pLog->iRegion1End = 0;
+  if( pMark->iOff > pLog->iRegion2Start ) pLog->iRegion2Start = 0;
+}
+
+/*
+** This function does the work for an lsm_info(LOG_STRUCTURE) request.
+*/
+int lsmInfoLogStructure(lsm_db *pDb, char **pzVal){
+  int rc = LSM_OK;
+  char *zVal = 0;
+
+  /* If there is no read or write transaction open, read the latest 
+  ** tree-header from shared-memory to report on. If necessary, update
+  ** it based on the contents of the database header.  
+  **
+  ** No locks are taken here - these are passive read operations only.
+  */
+  if( pDb->pCsr==0 && pDb->nTransOpen==0 ){
+    rc = lsmTreeLoadHeader(pDb, 0);
+    if( rc==LSM_OK ) rc = logReclaimSpace(pDb);
+  }
+
+  if( rc==LSM_OK ){
+    DbLog *pLog = &pDb->treehdr.log;
+    zVal = lsmMallocPrintf(pDb->pEnv, 
+        "%d %d %d %d %d %d", 
+        (int)pLog->aRegion[0].iStart, (int)pLog->aRegion[0].iEnd,
+        (int)pLog->aRegion[1].iStart, (int)pLog->aRegion[1].iEnd,
+        (int)pLog->aRegion[2].iStart, (int)pLog->aRegion[2].iEnd
+    );
+    if( !zVal ) rc = LSM_NOMEM_BKPT;
+  }
+
+  *pzVal = zVal;
+  return rc;
+}
+
+/*************************************************************************
+** Begin code for log recovery.
+*/
+
+typedef struct LogReader LogReader;
+struct LogReader {
+  FileSystem *pFS;                /* File system to read from */
+  i64 iOff;                       /* File offset at end of buf content */
+  int iBuf;                       /* Current read offset in buf */
+  LsmString buf;                  /* Buffer containing file content */
+
+  int iCksumBuf;                  /* Offset in buf corresponding to cksum[01] */
+  u32 cksum0;                     /* Checksum 0 at offset iCksumBuf */
+  u32 cksum1;                     /* Checksum 1 at offset iCksumBuf */
+};
+
+static void logReaderBlob(
+  LogReader *p,                   /* Log reader object */
+  LsmString *pBuf,                /* Dynamic storage, if required */
+  int nBlob,                      /* Number of bytes to read */
+  u8 **ppBlob,                    /* OUT: Pointer to blob read */
+  int *pRc                        /* IN/OUT: Error code */
+){
+  static const int LOG_READ_SIZE = 512;
+  int rc = *pRc;                  /* Return code */
+  int nReq = nBlob;               /* Bytes required */
+
+  while( rc==LSM_OK && nReq>0 ){
+    int nAvail;                   /* Bytes of data available in p->buf */
+    if( p->buf.n==p->iBuf ){
+      int nCksum;                 /* Total bytes requiring checksum */
+      int nCarry = 0;             /* Total bytes requiring checksum */
+
+      nCksum = p->iBuf - p->iCksumBuf;
+      if( nCksum>0 ){
+        nCarry = nCksum % 8;
+        nCksum = ((nCksum / 8) * 8);
+        if( nCksum>0 ){
+          logCksumUnaligned(
+              &p->buf.z[p->iCksumBuf], nCksum, &p->cksum0, &p->cksum1
+          );
+        }
+      }
+      if( nCarry>0 ) memcpy(p->buf.z, &p->buf.z[p->iBuf-nCarry], nCarry);
+      p->buf.n = nCarry;
+      p->iBuf = nCarry;
+
+      rc = lsmFsReadLog(p->pFS, p->iOff, LOG_READ_SIZE, &p->buf);
+      if( rc!=LSM_OK ) break;
+      p->iCksumBuf = 0;
+      p->iOff += LOG_READ_SIZE;
+    }
+
+    nAvail = p->buf.n - p->iBuf;
+    if( ppBlob && nReq==nBlob && nBlob<=nAvail ){
+      *ppBlob = (u8 *)&p->buf.z[p->iBuf];
+      p->iBuf += nBlob;
+      nReq = 0;
+    }else{
+      int nCopy = LSM_MIN(nAvail, nReq);
+      if( nBlob==nReq ){
+        pBuf->n = 0;
+      }
+      rc = lsmStringBinAppend(pBuf, (u8 *)&p->buf.z[p->iBuf], nCopy);
+      nReq -= nCopy;
+      p->iBuf += nCopy;
+      if( nReq==0 && ppBlob ){
+        *ppBlob = (u8*)pBuf->z;
+      }
+    }
+  }
+
+  *pRc = rc;
+}
+
+static void logReaderVarint(
+  LogReader *p, 
+  LsmString *pBuf,
+  int *piVal,                     /* OUT: Value read from log */
+  int *pRc                        /* IN/OUT: Error code */
+){
+  if( *pRc==LSM_OK ){
+    u8 *aVarint;
+    if( p->buf.n==p->iBuf ){
+      logReaderBlob(p, 0, 10, &aVarint, pRc);
+      if( LSM_OK==*pRc ) p->iBuf -= (10 - lsmVarintGet32(aVarint, piVal));
+    }else{
+      logReaderBlob(p, pBuf, lsmVarintSize(p->buf.z[p->iBuf]), &aVarint, pRc);
+      if( LSM_OK==*pRc ) lsmVarintGet32(aVarint, piVal);
+    }
+  }
+}
+
+static void logReaderByte(LogReader *p, u8 *pByte, int *pRc){
+  u8 *pPtr = 0;
+  logReaderBlob(p, 0, 1, &pPtr, pRc);
+  if( pPtr ) *pByte = *pPtr;
+}
+
+static void logReaderCksum(LogReader *p, LsmString *pBuf, int *pbEof, int *pRc){
+  if( *pRc==LSM_OK ){
+    u8 *pPtr = 0;
+    u32 cksum0, cksum1;
+    int nCksum = p->iBuf - p->iCksumBuf;
+
+    /* Update in-memory (expected) checksums */
+    assert( nCksum>=0 );
+    logCksumUnaligned(&p->buf.z[p->iCksumBuf], nCksum, &p->cksum0, &p->cksum1);
+    p->iCksumBuf = p->iBuf + 8;
+    logReaderBlob(p, pBuf, 8, &pPtr, pRc);
+    assert( pPtr || *pRc );
+
+    /* Read the checksums from the log file. Set *pbEof if they do not match. */
+    if( pPtr ){
+      cksum0 = lsmGetU32(pPtr);
+      cksum1 = lsmGetU32(&pPtr[4]);
+      *pbEof = (cksum0!=p->cksum0 || cksum1!=p->cksum1);
+      p->iCksumBuf = p->iBuf;
+    }
+  }
+}
+
+static void logReaderInit(
+  lsm_db *pDb,                    /* Database handle */
+  DbLog *pLog,                    /* Log object associated with pDb */
+  int bInitBuf,                   /* True if p->buf is uninitialized */
+  LogReader *p                    /* Initialize this LogReader object */
+){
+  p->pFS = pDb->pFS;
+  p->iOff = pLog->aRegion[2].iStart;
+  p->cksum0 = pLog->cksum0;
+  p->cksum1 = pLog->cksum1;
+  if( bInitBuf ){ lsmStringInit(&p->buf, pDb->pEnv); }
+  p->buf.n = 0;
+  p->iCksumBuf = 0;
+  p->iBuf = 0;
+}
+
+/*
+** This function is called after reading the header of a LOG_DELETE or
+** LOG_WRITE record. Parameter nByte is the total size of the key and
+** value that follow the header just read. Return true if the size and
+** position of the record indicate that it should contain a checksum.
+*/
+static int logRequireCksum(LogReader *p, int nByte){
+  return ((p->iBuf + nByte - p->iCksumBuf) > LSM_CKSUM_MAXDATA);
+}
+
+/*
+** Recover the contents of the log file.
+*/
+int lsmLogRecover(lsm_db *pDb){
+  LsmString buf1;                 /* Key buffer */
+  LsmString buf2;                 /* Value buffer */
+  LogReader reader;               /* Log reader object */
+  int rc = LSM_OK;                /* Return code */
+  int nCommit = 0;                /* Number of transactions to recover */
+  int iPass;
+  int nJump = 0;                  /* Number of LSM_LOG_JUMP records in pass 0 */
+  DbLog *pLog;
+  int bOpen;
+
+  rc = lsmFsOpenLog(pDb, &bOpen);
+  if( rc!=LSM_OK ) return rc;
+
+  rc = lsmTreeInit(pDb);
+  if( rc!=LSM_OK ) return rc;
+
+  pLog = &pDb->treehdr.log;
+  lsmCheckpointLogoffset(pDb->pShmhdr->aSnap2, pLog);
+
+  logReaderInit(pDb, pLog, 1, &reader);
+  lsmStringInit(&buf1, pDb->pEnv);
+  lsmStringInit(&buf2, pDb->pEnv);
+
+  /* The outer for() loop runs at most twice. The first iteration is to 
+  ** count the number of committed transactions in the log. The second 
+  ** iterates through those transactions and updates the in-memory tree 
+  ** structure with their contents.  */
+  if( bOpen ){
+    for(iPass=0; iPass<2 && rc==LSM_OK; iPass++){
+      int bEof = 0;
+
+      while( rc==LSM_OK && !bEof ){
+        u8 eType = 0;
+        logReaderByte(&reader, &eType, &rc);
+
+        switch( eType ){
+          case LSM_LOG_PAD1:
+            break;
+
+          case LSM_LOG_PAD2: {
+            int nPad;
+            logReaderVarint(&reader, &buf1, &nPad, &rc);
+            logReaderBlob(&reader, &buf1, nPad, 0, &rc);
+            break;
+          }
+
+          case LSM_LOG_DRANGE:
+          case LSM_LOG_DRANGE_CKSUM:
+          case LSM_LOG_WRITE:
+          case LSM_LOG_WRITE_CKSUM: {
+            int nKey;
+            int nVal;
+            u8 *aVal;
+            logReaderVarint(&reader, &buf1, &nKey, &rc);
+            logReaderVarint(&reader, &buf2, &nVal, &rc);
+
+            if( eType==LSM_LOG_WRITE_CKSUM || eType==LSM_LOG_DRANGE_CKSUM ){
+              logReaderCksum(&reader, &buf1, &bEof, &rc);
+            }else{
+              bEof = logRequireCksum(&reader, nKey+nVal);
+            }
+            if( bEof ) break;
+
+            logReaderBlob(&reader, &buf1, nKey, 0, &rc);
+            logReaderBlob(&reader, &buf2, nVal, &aVal, &rc);
+            if( iPass==1 && rc==LSM_OK ){ 
+              if( eType==LSM_LOG_WRITE || eType==LSM_LOG_WRITE_CKSUM ){
+                rc = lsmTreeInsert(pDb, (u8 *)buf1.z, nKey, aVal, nVal);
+              }else{
+                rc = lsmTreeDelete(pDb, (u8 *)buf1.z, nKey, aVal, nVal);
+              }
+            }
+            break;
+          }
+
+          case LSM_LOG_DELETE:
+          case LSM_LOG_DELETE_CKSUM: {
+            int nKey; u8 *aKey;
+            logReaderVarint(&reader, &buf1, &nKey, &rc);
+
+            if( eType==LSM_LOG_DELETE_CKSUM ){
+              logReaderCksum(&reader, &buf1, &bEof, &rc);
+            }else{
+              bEof = logRequireCksum(&reader, nKey);
+            }
+            if( bEof ) break;
+
+            logReaderBlob(&reader, &buf1, nKey, &aKey, &rc);
+            if( iPass==1 && rc==LSM_OK ){ 
+              rc = lsmTreeInsert(pDb, aKey, nKey, NULL, -1);
+            }
+            break;
+          }
+
+          case LSM_LOG_COMMIT:
+            logReaderCksum(&reader, &buf1, &bEof, &rc);
+            if( bEof==0 ){
+              nCommit++;
+              assert( nCommit>0 || iPass==1 );
+              if( nCommit==0 ) bEof = 1;
+            }
+            break;
+
+          case LSM_LOG_JUMP: {
+            int iOff = 0;
+            logReaderVarint(&reader, &buf1, &iOff, &rc);
+            if( rc==LSM_OK ){
+              if( iPass==1 ){
+                if( pLog->aRegion[2].iStart==0 ){
+                  assert( pLog->aRegion[1].iStart==0 );
+                  pLog->aRegion[1].iEnd = reader.iOff;
+                }else{
+                  assert( pLog->aRegion[0].iStart==0 );
+                  pLog->aRegion[0].iStart = pLog->aRegion[2].iStart;
+                  pLog->aRegion[0].iEnd = reader.iOff-reader.buf.n+reader.iBuf;
+                }
+                pLog->aRegion[2].iStart = iOff;
+              }else{
+                if( (nJump++)==2 ){
+                  bEof = 1;
+                }
+              }
+
+              reader.iOff = iOff;
+              reader.buf.n = reader.iBuf;
+            }
+            break;
+          }
+
+          default:
+            /* Including LSM_LOG_EOF */
+            bEof = 1;
+            break;
+        }
+      }
+
+      if( rc==LSM_OK && iPass==0 ){
+        if( nCommit==0 ){
+          if( pLog->aRegion[2].iStart==0 ){
+            iPass = 1;
+          }else{
+            pLog->aRegion[2].iStart = 0;
+            iPass = -1;
+            lsmCheckpointZeroLogoffset(pDb);
+          }
+        }
+        logReaderInit(pDb, pLog, 0, &reader);
+        nCommit = nCommit * -1;
+      }
+    }
+  }
+
+  /* Initialize DbLog object */
+  if( rc==LSM_OK ){
+    pLog->aRegion[2].iEnd = reader.iOff - reader.buf.n + reader.iBuf;
+    pLog->cksum0 = reader.cksum0;
+    pLog->cksum1 = reader.cksum1;
+  }
+
+  if( rc==LSM_OK ){
+    rc = lsmFinishRecovery(pDb);
+  }else{
+    lsmFinishRecovery(pDb);
+  }
+
+  if( pDb->bRoTrans ){
+    lsmFsCloseLog(pDb);
+  }
+
+  lsmStringClear(&buf1);
+  lsmStringClear(&buf2);
+  lsmStringClear(&reader.buf);
+  return rc;
+}
+
+void lsmLogClose(lsm_db *db){
+  if( db->pLogWriter ){
+    lsmFree(db->pEnv, db->pLogWriter->buf.z);
+    lsmFree(db->pEnv, db->pLogWriter);
+    db->pLogWriter = 0;
+  }
+}
diff --git a/ext/lsm1/lsm_main.c b/ext/lsm1/lsm_main.c
new file mode 100644
index 0000000000000000000000000000000000000000..f2b353105a508b291b3d952adbaabb600a7473eb
--- /dev/null
+++ b/ext/lsm1/lsm_main.c
@@ -0,0 +1,1008 @@
+/*
+** 2011-08-18
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** The main interface to the LSM module.
+*/
+#include "lsmInt.h"
+
+
+#ifdef LSM_DEBUG
+/*
+** This function returns a copy of its only argument.
+**
+** When the library is built with LSM_DEBUG defined, this function is called
+** whenever an error code is generated (not propagated - generated). So
+** if the library is mysteriously returning (say) LSM_IOERR, a breakpoint
+** may be set in this function to determine why.
+*/
+int lsmErrorBkpt(int rc){
+  /* Set breakpoint here! */
+  return rc;
+}
+
+/*
+** This function contains various assert() statements that test that the
+** lsm_db structure passed as an argument is internally consistent.
+*/
+static void assert_db_state(lsm_db *pDb){
+
+  /* If there is at least one cursor or a write transaction open, the database
+  ** handle must be holding a pointer to a client snapshot. And the reverse 
+  ** - if there are no open cursors and no write transactions then there must 
+  ** not be a client snapshot.  */
+  
+  assert( (pDb->pCsr!=0||pDb->nTransOpen>0)==(pDb->iReader>=0||pDb->bRoTrans) );
+
+  assert( (pDb->iReader<0 && pDb->bRoTrans==0) || pDb->pClient!=0 );
+
+  assert( pDb->nTransOpen>=0 );
+}
+#else
+# define assert_db_state(x) 
+#endif
+
+/*
+** The default key-compare function.
+*/
+static int xCmp(void *p1, int n1, void *p2, int n2){
+  int res;
+  res = memcmp(p1, p2, LSM_MIN(n1, n2));
+  if( res==0 ) res = (n1-n2);
+  return res;
+}
+
+static void xLog(void *pCtx, int rc, const char *z){
+  (void)(rc);
+  (void)(pCtx);
+  fprintf(stderr, "%s\n", z);
+  fflush(stderr);
+}
+
+/*
+** Allocate a new db handle.
+*/
+int lsm_new(lsm_env *pEnv, lsm_db **ppDb){
+  lsm_db *pDb;
+
+  /* If the user did not provide an environment, use the default. */
+  if( pEnv==0 ) pEnv = lsm_default_env();
+  assert( pEnv );
+
+  /* Allocate the new database handle */
+  *ppDb = pDb = (lsm_db *)lsmMallocZero(pEnv, sizeof(lsm_db));
+  if( pDb==0 ) return LSM_NOMEM_BKPT;
+
+  /* Initialize the new object */
+  pDb->pEnv = pEnv;
+  pDb->nTreeLimit = LSM_DFLT_AUTOFLUSH;
+  pDb->nAutockpt = LSM_DFLT_AUTOCHECKPOINT;
+  pDb->bAutowork = LSM_DFLT_AUTOWORK;
+  pDb->eSafety = LSM_DFLT_SAFETY;
+  pDb->xCmp = xCmp;
+  pDb->nDfltPgsz = LSM_DFLT_PAGE_SIZE;
+  pDb->nDfltBlksz = LSM_DFLT_BLOCK_SIZE;
+  pDb->nMerge = LSM_DFLT_AUTOMERGE;
+  pDb->nMaxFreelist = LSM_MAX_FREELIST_ENTRIES;
+  pDb->bUseLog = LSM_DFLT_USE_LOG;
+  pDb->iReader = -1;
+  pDb->iRwclient = -1;
+  pDb->bMultiProc = LSM_DFLT_MULTIPLE_PROCESSES;
+  pDb->iMmap = LSM_DFLT_MMAP;
+  pDb->xLog = xLog;
+  pDb->compress.iId = LSM_COMPRESSION_NONE;
+  return LSM_OK;
+}
+
+lsm_env *lsm_get_env(lsm_db *pDb){
+  assert( pDb->pEnv );
+  return pDb->pEnv;
+}
+
+/*
+** If database handle pDb is currently holding a client snapshot, but does
+** not have any open cursors or write transactions, release it.
+*/
+static void dbReleaseClientSnapshot(lsm_db *pDb){
+  if( pDb->nTransOpen==0 && pDb->pCsr==0 ){
+    lsmFinishReadTrans(pDb);
+  }
+}
+
+static int getFullpathname(
+  lsm_env *pEnv, 
+  const char *zRel,
+  char **pzAbs
+){
+  int nAlloc = 0;
+  char *zAlloc = 0;
+  int nReq = 0;
+  int rc;
+
+  do{
+    nAlloc = nReq;
+    rc = pEnv->xFullpath(pEnv, zRel, zAlloc, &nReq);
+    if( nReq>nAlloc ){
+      zAlloc = lsmReallocOrFreeRc(pEnv, zAlloc, nReq, &rc);
+    }
+  }while( nReq>nAlloc && rc==LSM_OK );
+
+  if( rc!=LSM_OK ){
+    lsmFree(pEnv, zAlloc);
+    zAlloc = 0;
+  }
+  *pzAbs = zAlloc;
+  return rc;
+}
+
+/*
+** Check that the bits in the db->mLock mask are consistent with the
+** value stored in db->iRwclient. An assert shall fail otherwise.
+*/
+static void assertRwclientLockValue(lsm_db *db){
+#ifndef NDEBUG
+  u64 msk;                        /* Mask of mLock bits for RWCLIENT locks */
+  u64 rwclient = 0;               /* Bit corresponding to db->iRwclient */
+
+  if( db->iRwclient>=0 ){
+    rwclient = ((u64)1 << (LSM_LOCK_RWCLIENT(db->iRwclient)-1));
+  }
+  msk  = ((u64)1 << (LSM_LOCK_RWCLIENT(LSM_LOCK_NRWCLIENT)-1)) - 1;
+  msk -= (((u64)1 << (LSM_LOCK_RWCLIENT(0)-1)) - 1);
+
+  assert( (db->mLock & msk)==rwclient );
+#endif
+}
+
+/*
+** Open a new connection to database zFilename.
+*/
+int lsm_open(lsm_db *pDb, const char *zFilename){
+  int rc;
+
+  if( pDb->pDatabase ){
+    rc = LSM_MISUSE;
+  }else{
+    char *zFull;
+
+    /* Translate the possibly relative pathname supplied by the user into
+    ** an absolute pathname. This is required because the supplied path
+    ** is used (either directly or with "-log" appended to it) for more 
+    ** than one purpose - to open both the database and log files, and 
+    ** perhaps to unlink the log file during disconnection. An absolute
+    ** path is required to ensure that the correct files are operated
+    ** on even if the application changes the cwd.  */
+    rc = getFullpathname(pDb->pEnv, zFilename, &zFull);
+    assert( rc==LSM_OK || zFull==0 );
+
+    /* Connect to the database. */
+    if( rc==LSM_OK ){
+      rc = lsmDbDatabaseConnect(pDb, zFull);
+    }
+
+    if( pDb->bReadonly==0 ){
+      /* Configure the file-system connection with the page-size and block-size
+      ** of this database. Even if the database file is zero bytes in size
+      ** on disk, these values have been set in shared-memory by now, and so 
+      ** are guaranteed not to change during the lifetime of this connection.  
+      */
+      if( rc==LSM_OK && LSM_OK==(rc = lsmCheckpointLoad(pDb, 0)) ){
+        lsmFsSetPageSize(pDb->pFS, lsmCheckpointPgsz(pDb->aSnapshot));
+        lsmFsSetBlockSize(pDb->pFS, lsmCheckpointBlksz(pDb->aSnapshot));
+      }
+    }
+
+    lsmFree(pDb->pEnv, zFull);
+    assertRwclientLockValue(pDb);
+  }
+
+  assert( pDb->bReadonly==0 || pDb->bReadonly==1 );
+  assert( rc!=LSM_OK || (pDb->pShmhdr==0)==(pDb->bReadonly==1) );
+
+  return rc;
+}
+
+int lsm_close(lsm_db *pDb){
+  int rc = LSM_OK;
+  if( pDb ){
+    assert_db_state(pDb);
+    if( pDb->pCsr || pDb->nTransOpen ){
+      rc = LSM_MISUSE_BKPT;
+    }else{
+      lsmMCursorFreeCache(pDb);
+      lsmFreeSnapshot(pDb->pEnv, pDb->pClient);
+      pDb->pClient = 0;
+
+      assertRwclientLockValue(pDb);
+
+      lsmDbDatabaseRelease(pDb);
+      lsmLogClose(pDb);
+      lsmFsClose(pDb->pFS);
+      /* assert( pDb->mLock==0 ); */
+      
+      /* Invoke any destructors registered for the compression or 
+      ** compression factory callbacks.  */
+      if( pDb->factory.xFree ) pDb->factory.xFree(pDb->factory.pCtx);
+      if( pDb->compress.xFree ) pDb->compress.xFree(pDb->compress.pCtx);
+
+      lsmFree(pDb->pEnv, pDb->rollback.aArray);
+      lsmFree(pDb->pEnv, pDb->aTrans);
+      lsmFree(pDb->pEnv, pDb->apShm);
+      lsmFree(pDb->pEnv, pDb);
+    }
+  }
+  return rc;
+}
+
+int lsm_config(lsm_db *pDb, int eParam, ...){
+  int rc = LSM_OK;
+  va_list ap;
+  va_start(ap, eParam);
+
+  switch( eParam ){
+    case LSM_CONFIG_AUTOFLUSH: {
+      /* This parameter is read and written in KB. But all internal 
+      ** processing is done in bytes.  */
+      int *piVal = va_arg(ap, int *);
+      int iVal = *piVal;
+      if( iVal>=0 && iVal<=(1024*1024) ){
+        pDb->nTreeLimit = iVal*1024;
+      }
+      *piVal = (pDb->nTreeLimit / 1024);
+      break;
+    }
+
+    case LSM_CONFIG_AUTOWORK: {
+      int *piVal = va_arg(ap, int *);
+      if( *piVal>=0 ){
+        pDb->bAutowork = *piVal;
+      }
+      *piVal = pDb->bAutowork;
+      break;
+    }
+
+    case LSM_CONFIG_AUTOCHECKPOINT: {
+      /* This parameter is read and written in KB. But all internal processing
+      ** (including the lsm_db.nAutockpt variable) is done in bytes.  */
+      int *piVal = va_arg(ap, int *);
+      if( *piVal>=0 ){
+        int iVal = *piVal;
+        pDb->nAutockpt = (i64)iVal * 1024;
+      }
+      *piVal = (int)(pDb->nAutockpt / 1024);
+      break;
+    }
+
+    case LSM_CONFIG_PAGE_SIZE: {
+      int *piVal = va_arg(ap, int *);
+      if( pDb->pDatabase ){
+        /* If lsm_open() has been called, this is a read-only parameter. 
+        ** Set the output variable to the page-size according to the 
+        ** FileSystem object.  */
+        *piVal = lsmFsPageSize(pDb->pFS);
+      }else{
+        if( *piVal>=256 && *piVal<=65536 && ((*piVal-1) & *piVal)==0 ){
+          pDb->nDfltPgsz = *piVal;
+        }else{
+          *piVal = pDb->nDfltPgsz;
+        }
+      }
+      break;
+    }
+
+    case LSM_CONFIG_BLOCK_SIZE: {
+      /* This parameter is read and written in KB. But all internal 
+      ** processing is done in bytes.  */
+      int *piVal = va_arg(ap, int *);
+      if( pDb->pDatabase ){
+        /* If lsm_open() has been called, this is a read-only parameter. 
+        ** Set the output variable to the block-size in KB according to the 
+        ** FileSystem object.  */
+        *piVal = lsmFsBlockSize(pDb->pFS) / 1024;
+      }else{
+        int iVal = *piVal;
+        if( iVal>=64 && iVal<=65536 && ((iVal-1) & iVal)==0 ){
+          pDb->nDfltBlksz = iVal * 1024;
+        }else{
+          *piVal = pDb->nDfltBlksz / 1024;
+        }
+      }
+      break;
+    }
+
+    case LSM_CONFIG_SAFETY: {
+      int *piVal = va_arg(ap, int *);
+      if( *piVal>=0 && *piVal<=2 ){
+        pDb->eSafety = *piVal;
+      }
+      *piVal = pDb->eSafety;
+      break;
+    }
+
+    case LSM_CONFIG_MMAP: {
+      int *piVal = va_arg(ap, int *);
+      if( pDb->iReader<0 && *piVal>=0 ){
+        pDb->iMmap = *piVal;
+        rc = lsmFsConfigure(pDb);
+      }
+      *piVal = pDb->iMmap;
+      break;
+    }
+
+    case LSM_CONFIG_USE_LOG: {
+      int *piVal = va_arg(ap, int *);
+      if( pDb->nTransOpen==0 && (*piVal==0 || *piVal==1) ){
+        pDb->bUseLog = *piVal;
+      }
+      *piVal = pDb->bUseLog;
+      break;
+    }
+
+    case LSM_CONFIG_AUTOMERGE: {
+      int *piVal = va_arg(ap, int *);
+      if( *piVal>1 ) pDb->nMerge = *piVal;
+      *piVal = pDb->nMerge;
+      break;
+    }
+
+    case LSM_CONFIG_MAX_FREELIST: {
+      int *piVal = va_arg(ap, int *);
+      if( *piVal>=2 && *piVal<=LSM_MAX_FREELIST_ENTRIES ){
+        pDb->nMaxFreelist = *piVal;
+      }
+      *piVal = pDb->nMaxFreelist;
+      break;
+    }
+
+    case LSM_CONFIG_MULTIPLE_PROCESSES: {
+      int *piVal = va_arg(ap, int *);
+      if( pDb->pDatabase ){
+        /* If lsm_open() has been called, this is a read-only parameter. 
+        ** Set the output variable to true if this connection is currently
+        ** in multi-process mode.  */
+        *piVal = lsmDbMultiProc(pDb);
+      }else{
+        pDb->bMultiProc = *piVal = (*piVal!=0);
+      }
+      break;
+    }
+
+    case LSM_CONFIG_READONLY: {
+      int *piVal = va_arg(ap, int *);
+      /* If lsm_open() has been called, this is a read-only parameter. */
+      if( pDb->pDatabase==0 && *piVal>=0 ){
+        pDb->bReadonly = *piVal = (*piVal!=0);
+      }
+      *piVal = pDb->bReadonly;
+      break;
+    }
+
+    case LSM_CONFIG_SET_COMPRESSION: {
+      lsm_compress *p = va_arg(ap, lsm_compress *);
+      if( pDb->iReader>=0 && pDb->bInFactory==0 ){
+        /* May not change compression schemes with an open transaction */
+        rc = LSM_MISUSE_BKPT;
+      }else{
+        if( pDb->compress.xFree ){
+          /* Invoke any destructor belonging to the current compression. */
+          pDb->compress.xFree(pDb->compress.pCtx);
+        }
+        if( p->xBound==0 ){
+          memset(&pDb->compress, 0, sizeof(lsm_compress));
+          pDb->compress.iId = LSM_COMPRESSION_NONE;
+        }else{
+          memcpy(&pDb->compress, p, sizeof(lsm_compress));
+        }
+        rc = lsmFsConfigure(pDb);
+      }
+      break;
+    }
+
+    case LSM_CONFIG_SET_COMPRESSION_FACTORY: {
+      lsm_compress_factory *p = va_arg(ap, lsm_compress_factory *);
+      if( pDb->factory.xFree ){
+        /* Invoke any destructor belonging to the current factory. */
+        pDb->factory.xFree(pDb->factory.pCtx);
+      }
+      memcpy(&pDb->factory, p, sizeof(lsm_compress_factory));
+      break;
+    }
+
+    case LSM_CONFIG_GET_COMPRESSION: {
+      lsm_compress *p = va_arg(ap, lsm_compress *);
+      memcpy(p, &pDb->compress, sizeof(lsm_compress));
+      break;
+    }
+
+    default:
+      rc = LSM_MISUSE;
+      break;
+  }
+
+  va_end(ap);
+  return rc;
+}
+
+void lsmAppendSegmentList(LsmString *pStr, char *zPre, Segment *pSeg){
+  lsmStringAppendf(pStr, "%s{%lld %lld %lld %lld}", zPre, 
+        pSeg->iFirst, pSeg->iLastPg, pSeg->iRoot, pSeg->nSize
+  );
+}
+
+static int infoGetWorker(lsm_db *pDb, Snapshot **pp, int *pbUnlock){
+  int rc = LSM_OK;
+
+  assert( *pbUnlock==0 );
+  if( !pDb->pWorker ){
+    rc = lsmBeginWork(pDb);
+    if( rc!=LSM_OK ) return rc;
+    *pbUnlock = 1;
+  }
+  if( pp ) *pp = pDb->pWorker;
+  return rc;
+}
+
+static void infoFreeWorker(lsm_db *pDb, int bUnlock){
+  if( bUnlock ){
+    int rcdummy = LSM_BUSY;
+    lsmFinishWork(pDb, 0, &rcdummy);
+  }
+}
+
+int lsmStructList(
+  lsm_db *pDb,                    /* Database handle */
+  char **pzOut                    /* OUT: Nul-terminated string (tcl list) */
+){
+  Level *pTopLevel = 0;           /* Top level of snapshot to report on */
+  int rc = LSM_OK;
+  Level *p;
+  LsmString s;
+  Snapshot *pWorker;              /* Worker snapshot */
+  int bUnlock = 0;
+
+  /* Obtain the worker snapshot */
+  rc = infoGetWorker(pDb, &pWorker, &bUnlock);
+  if( rc!=LSM_OK ) return rc;
+
+  /* Format the contents of the snapshot as text */
+  pTopLevel = lsmDbSnapshotLevel(pWorker);
+  lsmStringInit(&s, pDb->pEnv);
+  for(p=pTopLevel; rc==LSM_OK && p; p=p->pNext){
+    int i;
+    lsmStringAppendf(&s, "%s{%d", (s.n ? " " : ""), (int)p->iAge);
+    lsmAppendSegmentList(&s, " ", &p->lhs);
+    for(i=0; rc==LSM_OK && i<p->nRight; i++){
+      lsmAppendSegmentList(&s, " ", &p->aRhs[i]);
+    }
+    lsmStringAppend(&s, "}", 1);
+  }
+  rc = s.n>=0 ? LSM_OK : LSM_NOMEM;
+
+  /* Release the snapshot and return */
+  infoFreeWorker(pDb, bUnlock);
+  *pzOut = s.z;
+  return rc;
+}
+
+static int infoFreelistCb(void *pCtx, int iBlk, i64 iSnapshot){
+  LsmString *pStr = (LsmString *)pCtx;
+  lsmStringAppendf(pStr, "%s{%d %lld}", (pStr->n?" ":""), iBlk, iSnapshot);
+  return 0;
+}
+
+int lsmInfoFreelist(lsm_db *pDb, char **pzOut){
+  Snapshot *pWorker;              /* Worker snapshot */
+  int bUnlock = 0;
+  LsmString s;
+  int rc;
+
+  /* Obtain the worker snapshot */
+  rc = infoGetWorker(pDb, &pWorker, &bUnlock);
+  if( rc!=LSM_OK ) return rc;
+
+  lsmStringInit(&s, pDb->pEnv);
+  rc = lsmWalkFreelist(pDb, 0, infoFreelistCb, &s);
+  if( rc!=LSM_OK ){
+    lsmFree(pDb->pEnv, s.z);
+  }else{
+    *pzOut = s.z;
+  }
+
+  /* Release the snapshot and return */
+  infoFreeWorker(pDb, bUnlock);
+  return rc;
+}
+
+static int infoTreeSize(lsm_db *db, int *pnOldKB, int *pnNewKB){
+  ShmHeader *pShm = db->pShmhdr;
+  TreeHeader *p = &pShm->hdr1;
+
+  /* The following code suffers from two race conditions, as it accesses and
+  ** trusts the contents of shared memory without verifying checksums:
+  **
+  **   * The two values read - TreeHeader.root.nByte and oldroot.nByte - are 
+  **     32-bit fields. It is assumed that reading from one of these
+  **     is atomic - that it is not possible to read a partially written
+  **     garbage value. However the two values may be mutually inconsistent. 
+  **
+  **   * TreeHeader.iLogOff is a 64-bit value. And lsmCheckpointLogOffset()
+  **     reads a 64-bit value from a snapshot stored in shared memory. It
+  **     is assumed that in each case it is possible to read a partially
+  **     written garbage value. If this occurs, then the value returned
+  **     for the size of the "old" tree may reflect the size of an "old"
+  **     tree that was recently flushed to disk.
+  **
+  ** Given the context in which this function is called (as a result of an
+  ** lsm_info(LSM_INFO_TREE_SIZE) request), neither of these are considered to
+  ** be problems.
+  */
+  *pnNewKB = ((int)p->root.nByte + 1023) / 1024;
+  if( p->iOldShmid ){
+    if( p->iOldLog==lsmCheckpointLogOffset(pShm->aSnap1) ){
+      *pnOldKB = 0;
+    }else{
+      *pnOldKB = ((int)p->oldroot.nByte + 1023) / 1024;
+    }
+  }else{
+    *pnOldKB = 0;
+  }
+
+  return LSM_OK;
+}
+
+int lsm_info(lsm_db *pDb, int eParam, ...){
+  int rc = LSM_OK;
+  va_list ap;
+  va_start(ap, eParam);
+
+  switch( eParam ){
+    case LSM_INFO_NWRITE: {
+      int *piVal = va_arg(ap, int *);
+      *piVal = lsmFsNWrite(pDb->pFS);
+      break;
+    }
+
+    case LSM_INFO_NREAD: {
+      int *piVal = va_arg(ap, int *);
+      *piVal = lsmFsNRead(pDb->pFS);
+      break;
+    }
+
+    case LSM_INFO_DB_STRUCTURE: {
+      char **pzVal = va_arg(ap, char **);
+      rc = lsmStructList(pDb, pzVal);
+      break;
+    }
+
+    case LSM_INFO_ARRAY_STRUCTURE: {
+      LsmPgno pgno = va_arg(ap, LsmPgno);
+      char **pzVal = va_arg(ap, char **);
+      rc = lsmInfoArrayStructure(pDb, 0, pgno, pzVal);
+      break;
+    }
+
+    case LSM_INFO_ARRAY_PAGES: {
+      LsmPgno pgno = va_arg(ap, LsmPgno);
+      char **pzVal = va_arg(ap, char **);
+      rc = lsmInfoArrayPages(pDb, pgno, pzVal);
+      break;
+    }
+
+    case LSM_INFO_PAGE_HEX_DUMP:
+    case LSM_INFO_PAGE_ASCII_DUMP: {
+      LsmPgno pgno = va_arg(ap, LsmPgno);
+      char **pzVal = va_arg(ap, char **);
+      int bUnlock = 0;
+      rc = infoGetWorker(pDb, 0, &bUnlock);
+      if( rc==LSM_OK ){
+        int bHex = (eParam==LSM_INFO_PAGE_HEX_DUMP);
+        rc = lsmInfoPageDump(pDb, pgno, bHex, pzVal);
+      }
+      infoFreeWorker(pDb, bUnlock);
+      break;
+    }
+
+    case LSM_INFO_LOG_STRUCTURE: {
+      char **pzVal = va_arg(ap, char **);
+      rc = lsmInfoLogStructure(pDb, pzVal);
+      break;
+    }
+
+    case LSM_INFO_FREELIST: {
+      char **pzVal = va_arg(ap, char **);
+      rc = lsmInfoFreelist(pDb, pzVal);
+      break;
+    }
+
+    case LSM_INFO_CHECKPOINT_SIZE: {
+      int *pnKB = va_arg(ap, int *);
+      rc = lsmCheckpointSize(pDb, pnKB);
+      break;
+    }
+
+    case LSM_INFO_TREE_SIZE: {
+      int *pnOld = va_arg(ap, int *);
+      int *pnNew = va_arg(ap, int *);
+      rc = infoTreeSize(pDb, pnOld, pnNew);
+      break;
+    }
+
+    case LSM_INFO_COMPRESSION_ID: {
+      unsigned int *piOut = va_arg(ap, unsigned int *);
+      if( pDb->pClient ){
+        *piOut = pDb->pClient->iCmpId;
+      }else{
+        rc = lsmInfoCompressionId(pDb, piOut);
+      }
+      break;
+    }
+
+    default:
+      rc = LSM_MISUSE;
+      break;
+  }
+
+  va_end(ap);
+  return rc;
+}
+
+static int doWriteOp(
+  lsm_db *pDb,
+  int bDeleteRange,
+  const void *pKey, int nKey,     /* Key to write or delete */
+  const void *pVal, int nVal      /* Value to write. Or nVal==-1 for a delete */
+){
+  int rc = LSM_OK;                /* Return code */
+  int bCommit = 0;                /* True to commit before returning */
+
+  if( pDb->nTransOpen==0 ){
+    bCommit = 1;
+    rc = lsm_begin(pDb, 1);
+  }
+
+  if( rc==LSM_OK ){
+    int eType = (bDeleteRange ? LSM_DRANGE : (nVal>=0?LSM_WRITE:LSM_DELETE));
+    rc = lsmLogWrite(pDb, eType, (void *)pKey, nKey, (void *)pVal, nVal);
+  }
+
+  lsmSortedSaveTreeCursors(pDb);
+
+  if( rc==LSM_OK ){
+    int pgsz = lsmFsPageSize(pDb->pFS);
+    int nQuant = LSM_AUTOWORK_QUANT * pgsz;
+    int nBefore;
+    int nAfter;
+    int nDiff;
+
+    if( nQuant>pDb->nTreeLimit ){
+      nQuant = LSM_MAX(pDb->nTreeLimit, pgsz);
+    }
+
+    nBefore = lsmTreeSize(pDb);
+    if( bDeleteRange ){
+      rc = lsmTreeDelete(pDb, (void *)pKey, nKey, (void *)pVal, nVal);
+    }else{
+      rc = lsmTreeInsert(pDb, (void *)pKey, nKey, (void *)pVal, nVal);
+    }
+
+    nAfter = lsmTreeSize(pDb);
+    nDiff = (nAfter/nQuant) - (nBefore/nQuant);
+    if( rc==LSM_OK && pDb->bAutowork && nDiff!=0 ){
+      rc = lsmSortedAutoWork(pDb, nDiff * LSM_AUTOWORK_QUANT);
+    }
+  }
+
+  /* If a transaction was opened at the start of this function, commit it. 
+  ** Or, if an error has occurred, roll it back.  */
+  if( bCommit ){
+    if( rc==LSM_OK ){
+      rc = lsm_commit(pDb, 0);
+    }else{
+      lsm_rollback(pDb, 0);
+    }
+  }
+
+  return rc;
+}
+
+/* 
+** Write a new value into the database.
+*/
+int lsm_insert(
+  lsm_db *db,                     /* Database connection */
+  const void *pKey, int nKey,     /* Key to write or delete */
+  const void *pVal, int nVal      /* Value to write. Or nVal==-1 for a delete */
+){
+  return doWriteOp(db, 0, pKey, nKey, pVal, nVal);
+}
+
+/*
+** Delete a value from the database. 
+*/
+int lsm_delete(lsm_db *db, const void *pKey, int nKey){
+  return doWriteOp(db, 0, pKey, nKey, 0, -1);
+}
+
+/*
+** Delete a range of database keys.
+*/
+int lsm_delete_range(
+  lsm_db *db,                     /* Database handle */
+  const void *pKey1, int nKey1,   /* Lower bound of range to delete */
+  const void *pKey2, int nKey2    /* Upper bound of range to delete */
+){
+  int rc = LSM_OK;
+  if( db->xCmp((void *)pKey1, nKey1, (void *)pKey2, nKey2)<0 ){
+    rc = doWriteOp(db, 1, pKey1, nKey1, pKey2, nKey2);
+  }
+  return rc;
+}
+
+/*
+** Open a new cursor handle. 
+**
+** If there are currently no other open cursor handles, and no open write
+** transaction, open a read transaction here.
+*/
+int lsm_csr_open(lsm_db *pDb, lsm_cursor **ppCsr){
+  int rc = LSM_OK;                /* Return code */
+  MultiCursor *pCsr = 0;          /* New cursor object */
+
+  /* Open a read transaction if one is not already open. */
+  assert_db_state(pDb);
+
+  if( pDb->pShmhdr==0 ){
+    assert( pDb->bReadonly );
+    rc = lsmBeginRoTrans(pDb);
+  }else if( pDb->iReader<0 ){
+    rc = lsmBeginReadTrans(pDb);
+  }
+
+  /* Allocate the multi-cursor. */
+  if( rc==LSM_OK ){
+    rc = lsmMCursorNew(pDb, &pCsr);
+  }
+
+  /* If an error has occured, set the output to NULL and delete any partially
+  ** allocated cursor. If this means there are no open cursors, release the
+  ** client snapshot.  */
+  if( rc!=LSM_OK ){
+    lsmMCursorClose(pCsr, 0);
+    dbReleaseClientSnapshot(pDb);
+  }
+
+  assert_db_state(pDb);
+  *ppCsr = (lsm_cursor *)pCsr;
+  return rc;
+}
+
+/*
+** Close a cursor opened using lsm_csr_open().
+*/
+int lsm_csr_close(lsm_cursor *p){
+  if( p ){
+    lsm_db *pDb = lsmMCursorDb((MultiCursor *)p);
+    assert_db_state(pDb);
+    lsmMCursorClose((MultiCursor *)p, 1);
+    dbReleaseClientSnapshot(pDb);
+    assert_db_state(pDb);
+  }
+  return LSM_OK;
+}
+
+/*
+** Attempt to seek the cursor to the database entry specified by pKey/nKey.
+** If an error occurs (e.g. an OOM or IO error), return an LSM error code.
+** Otherwise, return LSM_OK.
+*/
+int lsm_csr_seek(lsm_cursor *pCsr, const void *pKey, int nKey, int eSeek){
+  return lsmMCursorSeek((MultiCursor *)pCsr, 0, (void *)pKey, nKey, eSeek);
+}
+
+int lsm_csr_next(lsm_cursor *pCsr){
+  return lsmMCursorNext((MultiCursor *)pCsr);
+}
+
+int lsm_csr_prev(lsm_cursor *pCsr){
+  return lsmMCursorPrev((MultiCursor *)pCsr);
+}
+
+int lsm_csr_first(lsm_cursor *pCsr){
+  return lsmMCursorFirst((MultiCursor *)pCsr);
+}
+
+int lsm_csr_last(lsm_cursor *pCsr){
+  return lsmMCursorLast((MultiCursor *)pCsr);
+}
+
+int lsm_csr_valid(lsm_cursor *pCsr){
+  return lsmMCursorValid((MultiCursor *)pCsr);
+}
+
+int lsm_csr_key(lsm_cursor *pCsr, const void **ppKey, int *pnKey){
+  return lsmMCursorKey((MultiCursor *)pCsr, (void **)ppKey, pnKey);
+}
+
+int lsm_csr_value(lsm_cursor *pCsr, const void **ppVal, int *pnVal){
+  return lsmMCursorValue((MultiCursor *)pCsr, (void **)ppVal, pnVal);
+}
+
+void lsm_config_log(
+  lsm_db *pDb, 
+  void (*xLog)(void *, int, const char *), 
+  void *pCtx
+){
+  pDb->xLog = xLog;
+  pDb->pLogCtx = pCtx;
+}
+
+void lsm_config_work_hook(
+  lsm_db *pDb, 
+  void (*xWork)(lsm_db *, void *), 
+  void *pCtx
+){
+  pDb->xWork = xWork;
+  pDb->pWorkCtx = pCtx;
+}
+
+void lsmLogMessage(lsm_db *pDb, int rc, const char *zFormat, ...){
+  if( pDb->xLog ){
+    LsmString s;
+    va_list ap, ap2;
+    lsmStringInit(&s, pDb->pEnv);
+    va_start(ap, zFormat);
+    va_start(ap2, zFormat);
+    lsmStringVAppendf(&s, zFormat, ap, ap2);
+    va_end(ap);
+    va_end(ap2);
+    pDb->xLog(pDb->pLogCtx, rc, s.z);
+    lsmStringClear(&s);
+  }
+}
+
+int lsm_begin(lsm_db *pDb, int iLevel){
+  int rc;
+
+  assert_db_state( pDb );
+  rc = (pDb->bReadonly ? LSM_READONLY : LSM_OK);
+
+  /* A value less than zero means open one more transaction. */
+  if( iLevel<0 ) iLevel = pDb->nTransOpen + 1;
+  if( iLevel>pDb->nTransOpen ){
+    int i;
+
+    /* Extend the pDb->aTrans[] array if required. */
+    if( rc==LSM_OK && pDb->nTransAlloc<iLevel ){
+      TransMark *aNew;            /* New allocation */
+      int nByte = sizeof(TransMark) * (iLevel+1);
+      aNew = (TransMark *)lsmRealloc(pDb->pEnv, pDb->aTrans, nByte);
+      if( !aNew ){
+        rc = LSM_NOMEM;
+      }else{
+        nByte = sizeof(TransMark) * (iLevel+1 - pDb->nTransAlloc);
+        memset(&aNew[pDb->nTransAlloc], 0, nByte);
+        pDb->nTransAlloc = iLevel+1;
+        pDb->aTrans = aNew;
+      }
+    }
+
+    if( rc==LSM_OK && pDb->nTransOpen==0 ){
+      rc = lsmBeginWriteTrans(pDb);
+    }
+
+    if( rc==LSM_OK ){
+      for(i=pDb->nTransOpen; i<iLevel; i++){
+        lsmTreeMark(pDb, &pDb->aTrans[i].tree);
+        lsmLogTell(pDb, &pDb->aTrans[i].log);
+      }
+      pDb->nTransOpen = iLevel;
+    }
+  }
+
+  return rc;
+}
+
+int lsm_commit(lsm_db *pDb, int iLevel){
+  int rc = LSM_OK;
+
+  assert_db_state( pDb );
+
+  /* A value less than zero means close the innermost nested transaction. */
+  if( iLevel<0 ) iLevel = LSM_MAX(0, pDb->nTransOpen - 1);
+
+  if( iLevel<pDb->nTransOpen ){
+    if( iLevel==0 ){
+      int rc2;
+      /* Commit the transaction to disk. */
+      if( rc==LSM_OK ) rc = lsmLogCommit(pDb);
+      if( rc==LSM_OK && pDb->eSafety==LSM_SAFETY_FULL ){
+        rc = lsmFsSyncLog(pDb->pFS);
+      }
+      rc2 = lsmFinishWriteTrans(pDb, (rc==LSM_OK));
+      if( rc==LSM_OK ) rc = rc2;
+    }
+    pDb->nTransOpen = iLevel;
+  }
+  dbReleaseClientSnapshot(pDb);
+  return rc;
+}
+
+int lsm_rollback(lsm_db *pDb, int iLevel){
+  int rc = LSM_OK;
+  assert_db_state( pDb );
+
+  if( pDb->nTransOpen ){
+    /* A value less than zero means close the innermost nested transaction. */
+    if( iLevel<0 ) iLevel = LSM_MAX(0, pDb->nTransOpen - 1);
+
+    if( iLevel<=pDb->nTransOpen ){
+      TransMark *pMark = &pDb->aTrans[(iLevel==0 ? 0 : iLevel-1)];
+      lsmTreeRollback(pDb, &pMark->tree);
+      if( iLevel ) lsmLogSeek(pDb, &pMark->log);
+      pDb->nTransOpen = iLevel;
+    }
+
+    if( pDb->nTransOpen==0 ){
+      lsmFinishWriteTrans(pDb, 0);
+    }
+    dbReleaseClientSnapshot(pDb);
+  }
+
+  return rc;
+}
+
+int lsm_get_user_version(lsm_db *pDb, unsigned int *piUsr){
+  int rc = LSM_OK;                /* Return code */
+
+  /* Open a read transaction if one is not already open. */
+  assert_db_state(pDb);
+  if( pDb->pShmhdr==0 ){
+    assert( pDb->bReadonly );
+    rc = lsmBeginRoTrans(pDb);
+  }else if( pDb->iReader<0 ){
+    rc = lsmBeginReadTrans(pDb);
+  }
+
+  /* Allocate the multi-cursor. */
+  if( rc==LSM_OK ){
+    *piUsr = pDb->treehdr.iUsrVersion;
+  }
+
+  dbReleaseClientSnapshot(pDb);
+  assert_db_state(pDb);
+  return rc;
+}
+
+int lsm_set_user_version(lsm_db *pDb, unsigned int iUsr){
+  int rc = LSM_OK;                /* Return code */
+  int bCommit = 0;                /* True to commit before returning */
+
+  if( pDb->nTransOpen==0 ){
+    bCommit = 1;
+    rc = lsm_begin(pDb, 1);
+  }
+
+  if( rc==LSM_OK ){
+    pDb->treehdr.iUsrVersion = iUsr;
+  }
+
+  /* If a transaction was opened at the start of this function, commit it. 
+  ** Or, if an error has occurred, roll it back.  */
+  if( bCommit ){
+    if( rc==LSM_OK ){
+      rc = lsm_commit(pDb, 0);
+    }else{
+      lsm_rollback(pDb, 0);
+    }
+  }
+
+  return rc;
+}
diff --git a/ext/lsm1/lsm_mem.c b/ext/lsm1/lsm_mem.c
new file mode 100644
index 0000000000000000000000000000000000000000..13dd9fe312c8f5882c71f250847a63b59b9291fb
--- /dev/null
+++ b/ext/lsm1/lsm_mem.c
@@ -0,0 +1,104 @@
+/*
+** 2011-08-18
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** Helper routines for memory allocation.
+*/
+#include "lsmInt.h"
+
+/*
+** The following routines are called internally by LSM sub-routines. In
+** this case a valid environment pointer must be supplied.
+*/
+void *lsmMalloc(lsm_env *pEnv, size_t N){
+  assert( pEnv );
+  return pEnv->xMalloc(pEnv, N);
+}
+void lsmFree(lsm_env *pEnv, void *p){
+  assert( pEnv );
+  pEnv->xFree(pEnv, p);
+}
+void *lsmRealloc(lsm_env *pEnv, void *p, size_t N){
+  assert( pEnv );
+  return pEnv->xRealloc(pEnv, p, N);
+}
+
+/*
+** Core memory allocation routines for LSM.
+*/
+void *lsm_malloc(lsm_env *pEnv, size_t N){
+  return lsmMalloc(pEnv ? pEnv : lsm_default_env(), N);
+}
+void lsm_free(lsm_env *pEnv, void *p){
+  lsmFree(pEnv ? pEnv : lsm_default_env(), p);
+}
+void *lsm_realloc(lsm_env *pEnv, void *p, size_t N){
+  return lsmRealloc(pEnv ? pEnv : lsm_default_env(), p, N);
+}
+
+void *lsmMallocZero(lsm_env *pEnv, size_t N){
+  void *pRet;
+  assert( pEnv );
+  pRet = lsmMalloc(pEnv, N);
+  if( pRet ) memset(pRet, 0, N);
+  return pRet;
+}
+
+void *lsmMallocRc(lsm_env *pEnv, size_t N, int *pRc){
+  void *pRet = 0;
+  if( *pRc==LSM_OK ){
+    pRet = lsmMalloc(pEnv, N);
+    if( pRet==0 ){
+      *pRc = LSM_NOMEM_BKPT;
+    }
+  }
+  return pRet;
+}
+
+void *lsmMallocZeroRc(lsm_env *pEnv, size_t N, int *pRc){
+  void *pRet = 0;
+  if( *pRc==LSM_OK ){
+    pRet = lsmMallocZero(pEnv, N);
+    if( pRet==0 ){
+      *pRc = LSM_NOMEM_BKPT;
+    }
+  }
+  return pRet;
+}
+
+void *lsmReallocOrFree(lsm_env *pEnv, void *p, size_t N){
+  void *pNew;
+  pNew = lsm_realloc(pEnv, p, N);
+  if( !pNew ) lsm_free(pEnv, p);
+  return pNew;
+}
+
+void *lsmReallocOrFreeRc(lsm_env *pEnv, void *p, size_t N, int *pRc){
+  void *pRet = 0;
+  if( *pRc ){
+    lsmFree(pEnv, p);
+  }else{
+    pRet = lsmReallocOrFree(pEnv, p, N);
+    if( !pRet ) *pRc = LSM_NOMEM_BKPT;
+  }
+  return pRet;
+}
+
+char *lsmMallocStrdup(lsm_env *pEnv, const char *zIn){
+  int nByte;
+  char *zRet;
+  nByte = strlen(zIn);
+  zRet = lsmMalloc(pEnv, nByte+1);
+  if( zRet ){
+    memcpy(zRet, zIn, nByte+1);
+  }
+  return zRet;
+}
diff --git a/ext/lsm1/lsm_mutex.c b/ext/lsm1/lsm_mutex.c
new file mode 100644
index 0000000000000000000000000000000000000000..cb99b2a61e23a10d7c3c627f8bb0994ff5f757fe
--- /dev/null
+++ b/ext/lsm1/lsm_mutex.c
@@ -0,0 +1,88 @@
+/*
+** 2012-01-30
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** Mutex functions for LSM.
+*/
+#include "lsmInt.h"
+
+/*
+** Allocate a new mutex.
+*/
+int lsmMutexNew(lsm_env *pEnv, lsm_mutex **ppNew){
+  return pEnv->xMutexNew(pEnv, ppNew);
+}
+
+/*
+** Return a handle for one of the static mutexes.
+*/
+int lsmMutexStatic(lsm_env *pEnv, int iMutex, lsm_mutex **ppStatic){
+  return pEnv->xMutexStatic(pEnv, iMutex, ppStatic);
+}
+
+/*
+** Free a mutex allocated by lsmMutexNew().
+*/
+void lsmMutexDel(lsm_env *pEnv, lsm_mutex *pMutex){
+  if( pMutex ) pEnv->xMutexDel(pMutex);
+}
+
+/*
+** Enter a mutex.
+*/
+void lsmMutexEnter(lsm_env *pEnv, lsm_mutex *pMutex){
+  pEnv->xMutexEnter(pMutex);
+}
+
+/*
+** Attempt to enter a mutex, but do not block. If successful, return zero.
+** Otherwise, if the mutex is already held by some other thread and is not
+** entered, return non zero.
+**
+** Each successful call to this function must be matched by a call to
+** lsmMutexLeave().
+*/
+int lsmMutexTry(lsm_env *pEnv, lsm_mutex *pMutex){
+  return pEnv->xMutexTry(pMutex);
+}
+
+/*
+** Leave a mutex.
+*/
+void lsmMutexLeave(lsm_env *pEnv, lsm_mutex *pMutex){
+  pEnv->xMutexLeave(pMutex);
+}
+
+#ifndef NDEBUG
+/*
+** Return non-zero if the mutex passed as the second argument is held
+** by the calling thread, or zero otherwise. If the implementation is not 
+** able to tell if the mutex is held by the caller, it should return
+** non-zero.
+**
+** This function is only used as part of assert() statements.
+*/
+int lsmMutexHeld(lsm_env *pEnv, lsm_mutex *pMutex){
+  return pEnv->xMutexHeld ? pEnv->xMutexHeld(pMutex) : 1;
+}
+
+/*
+** Return non-zero if the mutex passed as the second argument is not 
+** held by the calling thread, or zero otherwise. If the implementation 
+** is not able to tell if the mutex is held by the caller, it should 
+** return non-zero.
+**
+** This function is only used as part of assert() statements.
+*/
+int lsmMutexNotHeld(lsm_env *pEnv, lsm_mutex *pMutex){
+  return pEnv->xMutexNotHeld ? pEnv->xMutexNotHeld(pMutex) : 1;
+}
+#endif
diff --git a/ext/lsm1/lsm_shared.c b/ext/lsm1/lsm_shared.c
new file mode 100644
index 0000000000000000000000000000000000000000..09f9338488ca92bd2fa86eef8b14b039a19c78d8
--- /dev/null
+++ b/ext/lsm1/lsm_shared.c
@@ -0,0 +1,1994 @@
+/*
+** 2012-01-23
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** Utilities used to help multiple LSM clients to coexist within the
+** same process space.
+*/
+#include "lsmInt.h"
+
+/*
+** Global data. All global variables used by code in this file are grouped
+** into the following structure instance.
+**
+** pDatabase:
+**   Linked list of all Database objects allocated within this process.
+**   This list may not be traversed without holding the global mutex (see
+**   functions enterGlobalMutex() and leaveGlobalMutex()).
+*/
+static struct SharedData {
+  Database *pDatabase;            /* Linked list of all Database objects */
+} gShared;
+
+/*
+** Database structure. There is one such structure for each distinct 
+** database accessed by this process. They are stored in the singly linked 
+** list starting at global variable gShared.pDatabase. Database objects are 
+** reference counted. Once the number of connections to the associated
+** database drops to zero, they are removed from the linked list and deleted.
+**
+** pFile:
+**   In multi-process mode, this file descriptor is used to obtain locks 
+**   and to access shared-memory. In single process mode, its only job is
+**   to hold the exclusive lock on the file.
+**   
+*/
+struct Database {
+  /* Protected by the global mutex (enterGlobalMutex/leaveGlobalMutex): */
+  char *zName;                    /* Canonical path to database file */
+  int nName;                      /* strlen(zName) */
+  int nDbRef;                     /* Number of associated lsm_db handles */
+  Database *pDbNext;              /* Next Database structure in global list */
+
+  /* Protected by the local mutex (pClientMutex) */
+  int bReadonly;                  /* True if Database.pFile is read-only */
+  int bMultiProc;                 /* True if running in multi-process mode */
+  lsm_file *pFile;                /* Used for locks/shm in multi-proc mode */
+  LsmFile *pLsmFile;              /* List of deferred closes */
+  lsm_mutex *pClientMutex;        /* Protects the apShmChunk[] and pConn */
+  int nShmChunk;                  /* Number of entries in apShmChunk[] array */
+  void **apShmChunk;              /* Array of "shared" memory regions */
+  lsm_db *pConn;                  /* List of connections to this db. */
+};
+
+/*
+** Functions to enter and leave the global mutex. This mutex is used
+** to protect the global linked-list headed at gShared.pDatabase.
+*/
+static int enterGlobalMutex(lsm_env *pEnv){
+  lsm_mutex *p;
+  int rc = lsmMutexStatic(pEnv, LSM_MUTEX_GLOBAL, &p);
+  if( rc==LSM_OK ) lsmMutexEnter(pEnv, p);
+  return rc;
+}
+static void leaveGlobalMutex(lsm_env *pEnv){
+  lsm_mutex *p;
+  lsmMutexStatic(pEnv, LSM_MUTEX_GLOBAL, &p);
+  lsmMutexLeave(pEnv, p);
+}
+
+#ifdef LSM_DEBUG
+static int holdingGlobalMutex(lsm_env *pEnv){
+  lsm_mutex *p;
+  lsmMutexStatic(pEnv, LSM_MUTEX_GLOBAL, &p);
+  return lsmMutexHeld(pEnv, p);
+}
+#endif
+
+#if 0
+static void assertNotInFreelist(Freelist *p, int iBlk){
+  int i; 
+  for(i=0; i<p->nEntry; i++){
+    assert( p->aEntry[i].iBlk!=iBlk );
+  }
+}
+#else
+# define assertNotInFreelist(x,y)
+#endif
+
+/*
+** Append an entry to the free-list. If (iId==-1), this is a delete.
+*/
+int freelistAppend(lsm_db *db, u32 iBlk, i64 iId){
+  lsm_env *pEnv = db->pEnv;
+  Freelist *p;
+  int i; 
+
+  assert( iId==-1 || iId>=0 );
+  p = db->bUseFreelist ? db->pFreelist : &db->pWorker->freelist;
+
+  /* Extend the space allocated for the freelist, if required */
+  assert( p->nAlloc>=p->nEntry );
+  if( p->nAlloc==p->nEntry ){
+    int nNew; 
+    int nByte; 
+    FreelistEntry *aNew;
+
+    nNew = (p->nAlloc==0 ? 4 : p->nAlloc*2);
+    nByte = sizeof(FreelistEntry) * nNew;
+    aNew = (FreelistEntry *)lsmRealloc(pEnv, p->aEntry, nByte);
+    if( !aNew ) return LSM_NOMEM_BKPT;
+    p->nAlloc = nNew;
+    p->aEntry = aNew;
+  }
+
+  for(i=0; i<p->nEntry; i++){
+    assert( i==0 || p->aEntry[i].iBlk > p->aEntry[i-1].iBlk );
+    if( p->aEntry[i].iBlk>=iBlk ) break;
+  }
+
+  if( i<p->nEntry && p->aEntry[i].iBlk==iBlk ){
+    /* Clobber an existing entry */
+    p->aEntry[i].iId = iId;
+  }else{
+    /* Insert a new entry into the list */
+    int nByte = sizeof(FreelistEntry)*(p->nEntry-i);
+    memmove(&p->aEntry[i+1], &p->aEntry[i], nByte);
+    p->aEntry[i].iBlk = iBlk;
+    p->aEntry[i].iId = iId;
+    p->nEntry++;
+  }
+
+  return LSM_OK;
+}
+
+/*
+** This function frees all resources held by the Database structure passed
+** as the only argument.
+*/
+static void freeDatabase(lsm_env *pEnv, Database *p){
+  assert( holdingGlobalMutex(pEnv) );
+  if( p ){
+    /* Free the mutexes */
+    lsmMutexDel(pEnv, p->pClientMutex);
+
+    if( p->pFile ){
+      lsmEnvClose(pEnv, p->pFile);
+    }
+
+    /* Free the array of shm pointers */
+    lsmFree(pEnv, p->apShmChunk);
+
+    /* Free the memory allocated for the Database struct itself */
+    lsmFree(pEnv, p);
+  }
+}
+
+typedef struct DbTruncateCtx DbTruncateCtx;
+struct DbTruncateCtx {
+  int nBlock;
+  i64 iInUse;
+};
+
+static int dbTruncateCb(void *pCtx, int iBlk, i64 iSnapshot){
+  DbTruncateCtx *p = (DbTruncateCtx *)pCtx;
+  if( iBlk!=p->nBlock || (p->iInUse>=0 && iSnapshot>=p->iInUse) ) return 1;
+  p->nBlock--;
+  return 0;
+}
+
+static int dbTruncate(lsm_db *pDb, i64 iInUse){
+  int rc = LSM_OK;
+#if 0
+  int i;
+  DbTruncateCtx ctx;
+
+  assert( pDb->pWorker );
+  ctx.nBlock = pDb->pWorker->nBlock;
+  ctx.iInUse = iInUse;
+
+  rc = lsmWalkFreelist(pDb, 1, dbTruncateCb, (void *)&ctx);
+  for(i=ctx.nBlock+1; rc==LSM_OK && i<=pDb->pWorker->nBlock; i++){
+    rc = freelistAppend(pDb, i, -1);
+  }
+
+  if( rc==LSM_OK ){
+#ifdef LSM_LOG_FREELIST
+    if( ctx.nBlock!=pDb->pWorker->nBlock ){
+      lsmLogMessage(pDb, 0, 
+          "dbTruncate(): truncated db to %d blocks",ctx.nBlock
+      );
+    }
+#endif
+    pDb->pWorker->nBlock = ctx.nBlock;
+  }
+#endif
+  return rc;
+}
+
+
+/*
+** This function is called during database shutdown (when the number of
+** connections drops from one to zero). It truncates the database file
+** to as small a size as possible without truncating away any blocks that
+** contain data.
+*/
+static int dbTruncateFile(lsm_db *pDb){
+  int rc;
+
+  assert( pDb->pWorker==0 );
+  assert( lsmShmAssertLock(pDb, LSM_LOCK_DMS1, LSM_LOCK_EXCL) );
+  rc = lsmCheckpointLoadWorker(pDb);
+
+  if( rc==LSM_OK ){
+    DbTruncateCtx ctx;
+
+    /* Walk the database free-block-list in reverse order. Set ctx.nBlock
+    ** to the block number of the last block in the database that actually
+    ** contains data. */
+    ctx.nBlock = pDb->pWorker->nBlock;
+    ctx.iInUse = -1;
+    rc = lsmWalkFreelist(pDb, 1, dbTruncateCb, (void *)&ctx);
+
+    /* If the last block that contains data is not already the last block in
+    ** the database file, truncate the database file so that it is. */
+    if( rc==LSM_OK ){
+      rc = lsmFsTruncateDb(
+          pDb->pFS, (i64)ctx.nBlock*lsmFsBlockSize(pDb->pFS)
+      );
+    }
+  }
+
+  lsmFreeSnapshot(pDb->pEnv, pDb->pWorker);
+  pDb->pWorker = 0;
+  return rc;
+}
+
+static void doDbDisconnect(lsm_db *pDb){
+  int rc;
+
+  if( pDb->bReadonly ){
+    lsmShmLock(pDb, LSM_LOCK_DMS3, LSM_LOCK_UNLOCK, 0);
+  }else{
+    /* Block for an exclusive lock on DMS1. This lock serializes all calls
+    ** to doDbConnect() and doDbDisconnect() across all processes.  */
+    rc = lsmShmLock(pDb, LSM_LOCK_DMS1, LSM_LOCK_EXCL, 1);
+    if( rc==LSM_OK ){
+
+      lsmShmLock(pDb, LSM_LOCK_DMS2, LSM_LOCK_UNLOCK, 0);
+
+      /* Try an exclusive lock on DMS2. If successful, this is the last
+      ** connection to the database. In this case flush the contents of the
+      ** in-memory tree to disk and write a checkpoint.  */
+      rc = lsmShmTestLock(pDb, LSM_LOCK_DMS2, 1, LSM_LOCK_EXCL);
+      if( rc==LSM_OK ){
+        rc = lsmShmTestLock(pDb, LSM_LOCK_CHECKPOINTER, 1, LSM_LOCK_EXCL);
+      }
+      if( rc==LSM_OK ){
+        int bReadonly = 0;        /* True if there exist read-only conns. */
+
+        /* Flush the in-memory tree, if required. If there is data to flush,
+        ** this will create a new client snapshot in Database.pClient. The
+        ** checkpoint (serialization) of this snapshot may be written to disk
+        ** by the following block.  
+        **
+        ** There is no need to take a WRITER lock here. That there are no 
+        ** other locks on DMS2 guarantees that there are no other read-write
+        ** connections at this time (and the lock on DMS1 guarantees that
+        ** no new ones may appear).
+        */
+        rc = lsmTreeLoadHeader(pDb, 0);
+        if( rc==LSM_OK && (lsmTreeHasOld(pDb) || lsmTreeSize(pDb)>0) ){
+          rc = lsmFlushTreeToDisk(pDb);
+        }
+
+        /* Now check if there are any read-only connections. If there are,
+        ** then do not truncate the db file or unlink the shared-memory 
+        ** region.  */
+        if( rc==LSM_OK ){
+          rc = lsmShmTestLock(pDb, LSM_LOCK_DMS3, 1, LSM_LOCK_EXCL);
+          if( rc==LSM_BUSY ){
+            bReadonly = 1;
+            rc = LSM_OK;
+          }
+        }
+
+        /* Write a checkpoint to disk. */
+        if( rc==LSM_OK ){
+          rc = lsmCheckpointWrite(pDb, 0);
+        }
+
+        /* If the checkpoint was written successfully, delete the log file
+        ** and, if possible, truncate the database file.  */
+        if( rc==LSM_OK ){
+          int bRotrans = 0;
+          Database *p = pDb->pDatabase;
+
+          /* The log file may only be deleted if there are no clients 
+          ** read-only clients running rotrans transactions.  */
+          rc = lsmDetectRoTrans(pDb, &bRotrans);
+          if( rc==LSM_OK && bRotrans==0 ){
+            lsmFsCloseAndDeleteLog(pDb->pFS);
+          }
+
+          /* The database may only be truncated if there exist no read-only
+          ** clients - either connected or running rotrans transactions. */
+          if( bReadonly==0 && bRotrans==0 ){
+            lsmFsUnmap(pDb->pFS);
+            dbTruncateFile(pDb);
+            if( p->pFile && p->bMultiProc ){
+              lsmEnvShmUnmap(pDb->pEnv, p->pFile, 1);
+            }
+          }
+        }
+      }
+    }
+
+    if( pDb->iRwclient>=0 ){
+      lsmShmLock(pDb, LSM_LOCK_RWCLIENT(pDb->iRwclient), LSM_LOCK_UNLOCK, 0);
+      pDb->iRwclient = -1;
+    }
+
+    lsmShmLock(pDb, LSM_LOCK_DMS1, LSM_LOCK_UNLOCK, 0);
+  }
+  pDb->pShmhdr = 0;
+}
+
+static int doDbConnect(lsm_db *pDb){
+  const int nUsMax = 100000;      /* Max value for nUs */
+  int nUs = 1000;                 /* us to wait between DMS1 attempts */
+  int rc;
+
+  /* Obtain a pointer to the shared-memory header */
+  assert( pDb->pShmhdr==0 );
+  assert( pDb->bReadonly==0 );
+
+  /* Block for an exclusive lock on DMS1. This lock serializes all calls
+  ** to doDbConnect() and doDbDisconnect() across all processes.  */
+  while( 1 ){
+    rc = lsmShmLock(pDb, LSM_LOCK_DMS1, LSM_LOCK_EXCL, 1);
+    if( rc!=LSM_BUSY ) break;
+    lsmEnvSleep(pDb->pEnv, nUs);
+    nUs = nUs * 2;
+    if( nUs>nUsMax ) nUs = nUsMax;
+  }
+  if( rc==LSM_OK ){
+    rc = lsmShmCacheChunks(pDb, 1);
+  }
+  if( rc!=LSM_OK ) return rc;
+  pDb->pShmhdr = (ShmHeader *)pDb->apShm[0];
+
+  /* Try an exclusive lock on DMS2/DMS3. If successful, this is the first 
+  ** and only connection to the database. In this case initialize the 
+  ** shared-memory and run log file recovery.  */
+  assert( LSM_LOCK_DMS3==1+LSM_LOCK_DMS2 );
+  rc = lsmShmTestLock(pDb, LSM_LOCK_DMS2, 2, LSM_LOCK_EXCL);
+  if( rc==LSM_OK ){
+    memset(pDb->pShmhdr, 0, sizeof(ShmHeader));
+    rc = lsmCheckpointRecover(pDb);
+    if( rc==LSM_OK ){
+      rc = lsmLogRecover(pDb);
+    }
+    if( rc==LSM_OK ){
+      ShmHeader *pShm = pDb->pShmhdr;
+      pShm->aReader[0].iLsmId = lsmCheckpointId(pShm->aSnap1, 0);
+      pShm->aReader[0].iTreeId = pDb->treehdr.iUsedShmid;
+    }
+  }else if( rc==LSM_BUSY ){
+    rc = LSM_OK;
+  }
+
+  /* Take a shared lock on DMS2. In multi-process mode this lock "cannot" 
+  ** fail, as connections may only hold an exclusive lock on DMS2 if they 
+  ** first hold an exclusive lock on DMS1. And this connection is currently 
+  ** holding the exclusive lock on DSM1. 
+  **
+  ** However, if some other connection has the database open in single-process
+  ** mode, this operation will fail. In this case, return the error to the
+  ** caller - the attempt to connect to the db has failed.
+  */
+  if( rc==LSM_OK ){
+    rc = lsmShmLock(pDb, LSM_LOCK_DMS2, LSM_LOCK_SHARED, 0);
+  }
+
+  /* If anything went wrong, unlock DMS2. Otherwise, try to take an exclusive
+  ** lock on one of the LSM_LOCK_RWCLIENT() locks. Unlock DMS1 in any case. */
+  if( rc!=LSM_OK ){
+    pDb->pShmhdr = 0;
+  }else{
+    int i;
+    for(i=0; i<LSM_LOCK_NRWCLIENT; i++){
+      int rc2 = lsmShmLock(pDb, LSM_LOCK_RWCLIENT(i), LSM_LOCK_EXCL, 0);
+      if( rc2==LSM_OK ) pDb->iRwclient = i;
+      if( rc2!=LSM_BUSY ){
+        rc = rc2;
+        break;
+      }
+    }
+  }
+  lsmShmLock(pDb, LSM_LOCK_DMS1, LSM_LOCK_UNLOCK, 0);
+
+  return rc;
+}
+
+static int dbOpenSharedFd(lsm_env *pEnv, Database *p, int bRoOk){
+  int rc;
+
+  rc = lsmEnvOpen(pEnv, p->zName, 0, &p->pFile);
+  if( rc==LSM_IOERR && bRoOk ){
+    rc = lsmEnvOpen(pEnv, p->zName, LSM_OPEN_READONLY, &p->pFile);
+    p->bReadonly = 1;
+  }
+
+  return rc;
+}
+
+/*
+** Return a reference to the shared Database handle for the database 
+** identified by canonical path zName. If this is the first connection to
+** the named database, a new Database object is allocated. Otherwise, a
+** pointer to an existing object is returned.
+**
+** If successful, *ppDatabase is set to point to the shared Database 
+** structure and LSM_OK returned. Otherwise, *ppDatabase is set to NULL
+** and and LSM error code returned.
+**
+** Each successful call to this function should be (eventually) matched
+** by a call to lsmDbDatabaseRelease().
+*/
+int lsmDbDatabaseConnect(
+  lsm_db *pDb,                    /* Database handle */
+  const char *zName               /* Full-path to db file */
+){
+  lsm_env *pEnv = pDb->pEnv;
+  int rc;                         /* Return code */
+  Database *p = 0;                /* Pointer returned via *ppDatabase */
+  int nName = lsmStrlen(zName);
+
+  assert( pDb->pDatabase==0 );
+  rc = enterGlobalMutex(pEnv);
+  if( rc==LSM_OK ){
+
+    /* Search the global list for an existing object. TODO: Need something
+    ** better than the memcmp() below to figure out if a given Database
+    ** object represents the requested file.  */
+    for(p=gShared.pDatabase; p; p=p->pDbNext){
+      if( nName==p->nName && 0==memcmp(zName, p->zName, nName) ) break;
+    }
+
+    /* If no suitable Database object was found, allocate a new one. */
+    if( p==0 ){
+      p = (Database *)lsmMallocZeroRc(pEnv, sizeof(Database)+nName+1, &rc);
+
+      /* If the allocation was successful, fill in other fields and
+      ** allocate the client mutex. */ 
+      if( rc==LSM_OK ){
+        p->bMultiProc = pDb->bMultiProc;
+        p->zName = (char *)&p[1];
+        p->nName = nName;
+        memcpy((void *)p->zName, zName, nName+1);
+        rc = lsmMutexNew(pEnv, &p->pClientMutex);
+      }
+
+      /* If nothing has gone wrong so far, open the shared fd. And if that
+      ** succeeds and this connection requested single-process mode, 
+      ** attempt to take the exclusive lock on DMS2.  */
+      if( rc==LSM_OK ){
+        int bReadonly = (pDb->bReadonly && pDb->bMultiProc);
+        rc = dbOpenSharedFd(pDb->pEnv, p, bReadonly);
+      }
+
+      if( rc==LSM_OK && p->bMultiProc==0 ){
+        /* Hold an exclusive lock DMS1 while grabbing DMS2. This ensures
+        ** that any ongoing call to doDbDisconnect() (even one in another
+        ** process) is finished before proceeding.  */
+        assert( p->bReadonly==0 );
+        rc = lsmEnvLock(pDb->pEnv, p->pFile, LSM_LOCK_DMS1, LSM_LOCK_EXCL);
+        if( rc==LSM_OK ){
+          rc = lsmEnvLock(pDb->pEnv, p->pFile, LSM_LOCK_DMS2, LSM_LOCK_EXCL);
+          lsmEnvLock(pDb->pEnv, p->pFile, LSM_LOCK_DMS1, LSM_LOCK_UNLOCK);
+        }
+      }
+
+      if( rc==LSM_OK ){
+        p->pDbNext = gShared.pDatabase;
+        gShared.pDatabase = p;
+      }else{
+        freeDatabase(pEnv, p);
+        p = 0;
+      }
+    }
+
+    if( p ){
+      p->nDbRef++;
+    }
+    leaveGlobalMutex(pEnv);
+
+    if( p ){
+      lsmMutexEnter(pDb->pEnv, p->pClientMutex);
+      pDb->pNext = p->pConn;
+      p->pConn = pDb;
+      lsmMutexLeave(pDb->pEnv, p->pClientMutex);
+    }
+  }
+
+  pDb->pDatabase = p;
+  if( rc==LSM_OK ){
+    assert( p );
+    rc = lsmFsOpen(pDb, zName, p->bReadonly);
+  }
+
+  /* If the db handle is read-write, then connect to the system now. Run
+  ** recovery as necessary. Or, if this is a read-only database handle,
+  ** defer attempting to connect to the system until a read-transaction
+  ** is opened.  */
+  if( rc==LSM_OK ){
+    rc = lsmFsConfigure(pDb);
+  }
+  if( rc==LSM_OK && pDb->bReadonly==0 ){
+    rc = doDbConnect(pDb);
+  }
+
+  return rc;
+}
+
+static void dbDeferClose(lsm_db *pDb){
+  if( pDb->pFS ){
+    LsmFile *pLsmFile;
+    Database *p = pDb->pDatabase;
+    pLsmFile = lsmFsDeferClose(pDb->pFS);
+    pLsmFile->pNext = p->pLsmFile;
+    p->pLsmFile = pLsmFile;
+  }
+}
+
+LsmFile *lsmDbRecycleFd(lsm_db *db){
+  LsmFile *pRet;
+  Database *p = db->pDatabase;
+  lsmMutexEnter(db->pEnv, p->pClientMutex);
+  if( (pRet = p->pLsmFile)!=0 ){
+    p->pLsmFile = pRet->pNext;
+  }
+  lsmMutexLeave(db->pEnv, p->pClientMutex);
+  return pRet;
+}
+
+/*
+** Release a reference to a Database object obtained from 
+** lsmDbDatabaseConnect(). There should be exactly one call to this function 
+** for each successful call to Find().
+*/
+void lsmDbDatabaseRelease(lsm_db *pDb){
+  Database *p = pDb->pDatabase;
+  if( p ){
+    lsm_db **ppDb;
+
+    if( pDb->pShmhdr ){
+      doDbDisconnect(pDb);
+    }
+
+    lsmFsUnmap(pDb->pFS);
+    lsmMutexEnter(pDb->pEnv, p->pClientMutex);
+    for(ppDb=&p->pConn; *ppDb!=pDb; ppDb=&((*ppDb)->pNext));
+    *ppDb = pDb->pNext;
+    dbDeferClose(pDb);
+    lsmMutexLeave(pDb->pEnv, p->pClientMutex);
+
+    enterGlobalMutex(pDb->pEnv);
+    p->nDbRef--;
+    if( p->nDbRef==0 ){
+      LsmFile *pIter;
+      LsmFile *pNext;
+      Database **pp;
+
+      /* Remove the Database structure from the linked list. */
+      for(pp=&gShared.pDatabase; *pp!=p; pp=&((*pp)->pDbNext));
+      *pp = p->pDbNext;
+
+      /* If they were allocated from the heap, free the shared memory chunks */
+      if( p->bMultiProc==0 ){
+        int i;
+        for(i=0; i<p->nShmChunk; i++){
+          lsmFree(pDb->pEnv, p->apShmChunk[i]);
+        }
+      }
+
+      /* Close any outstanding file descriptors */
+      for(pIter=p->pLsmFile; pIter; pIter=pNext){
+        pNext = pIter->pNext;
+        lsmEnvClose(pDb->pEnv, pIter->pFile);
+        lsmFree(pDb->pEnv, pIter);
+      }
+      freeDatabase(pDb->pEnv, p);
+    }
+    leaveGlobalMutex(pDb->pEnv);
+  }
+}
+
+Level *lsmDbSnapshotLevel(Snapshot *pSnapshot){
+  return pSnapshot->pLevel;
+}
+
+void lsmDbSnapshotSetLevel(Snapshot *pSnap, Level *pLevel){
+  pSnap->pLevel = pLevel;
+}
+
+/* TODO: Shuffle things around to get rid of this */
+static int firstSnapshotInUse(lsm_db *, i64 *);
+
+/* 
+** Context object used by the lsmWalkFreelist() utility. 
+*/
+typedef struct WalkFreelistCtx WalkFreelistCtx;
+struct WalkFreelistCtx {
+  lsm_db *pDb;
+  int bReverse;
+  Freelist *pFreelist;
+  int iFree;
+  int (*xUsr)(void *, int, i64);  /* User callback function */
+  void *pUsrctx;                  /* User callback context */
+  int bDone;                      /* Set to true after xUsr() returns true */
+};
+
+/* 
+** Callback used by lsmWalkFreelist().
+*/
+static int walkFreelistCb(void *pCtx, int iBlk, i64 iSnapshot){
+  WalkFreelistCtx *p = (WalkFreelistCtx *)pCtx;
+  const int iDir = (p->bReverse ? -1 : 1);
+  Freelist *pFree = p->pFreelist;
+
+  assert( p->bDone==0 );
+  assert( iBlk>=0 );
+  if( pFree ){
+    while( (p->iFree < pFree->nEntry) && p->iFree>=0 ){
+      FreelistEntry *pEntry = &pFree->aEntry[p->iFree];
+      if( (p->bReverse==0 && pEntry->iBlk>(u32)iBlk)
+       || (p->bReverse!=0 && pEntry->iBlk<(u32)iBlk)
+      ){
+        break;
+      }else{
+        p->iFree += iDir;
+        if( pEntry->iId>=0 
+            && p->xUsr(p->pUsrctx, pEntry->iBlk, pEntry->iId) 
+          ){
+          p->bDone = 1;
+          return 1;
+        }
+        if( pEntry->iBlk==(u32)iBlk ) return 0;
+      }
+    }
+  }
+
+  if( p->xUsr(p->pUsrctx, iBlk, iSnapshot) ){
+    p->bDone = 1;
+    return 1;
+  }
+  return 0;
+}
+
+/*
+** The database handle passed as the first argument must be the worker
+** connection. This function iterates through the contents of the current
+** free block list, invoking the supplied callback once for each list
+** element.
+**
+** The difference between this function and lsmSortedWalkFreelist() is
+** that lsmSortedWalkFreelist() only considers those free-list elements
+** stored within the LSM. This function also merges in any in-memory 
+** elements.
+*/
+int lsmWalkFreelist(
+  lsm_db *pDb,                    /* Database handle (must be worker) */
+  int bReverse,                   /* True to iterate from largest to smallest */
+  int (*x)(void *, int, i64),     /* Callback function */
+  void *pCtx                      /* First argument to pass to callback */
+){
+  const int iDir = (bReverse ? -1 : 1);
+  int rc;
+  int iCtx;
+
+  WalkFreelistCtx ctx[2];
+
+  ctx[0].pDb = pDb;
+  ctx[0].bReverse = bReverse;
+  ctx[0].pFreelist = &pDb->pWorker->freelist;
+  if( ctx[0].pFreelist && bReverse ){
+    ctx[0].iFree = ctx[0].pFreelist->nEntry-1;
+  }else{
+    ctx[0].iFree = 0;
+  }
+  ctx[0].xUsr = walkFreelistCb;
+  ctx[0].pUsrctx = (void *)&ctx[1];
+  ctx[0].bDone = 0;
+
+  ctx[1].pDb = pDb;
+  ctx[1].bReverse = bReverse;
+  ctx[1].pFreelist = pDb->pFreelist;
+  if( ctx[1].pFreelist && bReverse ){
+    ctx[1].iFree = ctx[1].pFreelist->nEntry-1;
+  }else{
+    ctx[1].iFree = 0;
+  }
+  ctx[1].xUsr = x;
+  ctx[1].pUsrctx = pCtx;
+  ctx[1].bDone = 0;
+
+  rc = lsmSortedWalkFreelist(pDb, bReverse, walkFreelistCb, (void *)&ctx[0]);
+
+  if( ctx[0].bDone==0 ){
+    for(iCtx=0; iCtx<2; iCtx++){
+      int i;
+      WalkFreelistCtx *p = &ctx[iCtx];
+      for(i=p->iFree; 
+          p->pFreelist && rc==LSM_OK && i<p->pFreelist->nEntry && i>=0;
+          i += iDir
+         ){
+        FreelistEntry *pEntry = &p->pFreelist->aEntry[i];
+        if( pEntry->iId>=0 && p->xUsr(p->pUsrctx, pEntry->iBlk, pEntry->iId) ){
+          return LSM_OK;
+        }
+      }
+    }
+  }
+
+  return rc;
+}
+
+
+typedef struct FindFreeblockCtx FindFreeblockCtx;
+struct FindFreeblockCtx {
+  i64 iInUse;
+  int iRet;
+  int bNotOne;
+};
+
+static int findFreeblockCb(void *pCtx, int iBlk, i64 iSnapshot){
+  FindFreeblockCtx *p = (FindFreeblockCtx *)pCtx;
+  if( iSnapshot<p->iInUse && (iBlk!=1 || p->bNotOne==0) ){
+    p->iRet = iBlk;
+    return 1;
+  }
+  return 0;
+}
+
+static int findFreeblock(lsm_db *pDb, i64 iInUse, int bNotOne, int *piRet){
+  int rc;                         /* Return code */
+  FindFreeblockCtx ctx;           /* Context object */
+
+  ctx.iInUse = iInUse;
+  ctx.iRet = 0;
+  ctx.bNotOne = bNotOne;
+  rc = lsmWalkFreelist(pDb, 0, findFreeblockCb, (void *)&ctx);
+  *piRet = ctx.iRet;
+
+  return rc;
+}
+
+/*
+** Allocate a new database file block to write data to, either by extending
+** the database file or by recycling a free-list entry. The worker snapshot 
+** must be held in order to call this function.
+**
+** If successful, *piBlk is set to the block number allocated and LSM_OK is
+** returned. Otherwise, *piBlk is zeroed and an lsm error code returned.
+*/
+int lsmBlockAllocate(lsm_db *pDb, int iBefore, int *piBlk){
+  Snapshot *p = pDb->pWorker;
+  int iRet = 0;                   /* Block number of allocated block */
+  int rc = LSM_OK;
+  i64 iInUse = 0;                 /* Snapshot id still in use */
+  i64 iSynced = 0;                /* Snapshot id synced to disk */
+
+  assert( p );
+
+#ifdef LSM_LOG_FREELIST
+  {
+    static int nCall = 0;
+    char *zFree = 0;
+    nCall++;
+    rc = lsmInfoFreelist(pDb, &zFree);
+    if( rc!=LSM_OK ) return rc;
+    lsmLogMessage(pDb, 0, "lsmBlockAllocate(): %d freelist: %s", nCall, zFree);
+    lsmFree(pDb->pEnv, zFree);
+  }
+#endif
+
+  /* Set iInUse to the smallest snapshot id that is either:
+  **
+  **   * Currently in use by a database client,
+  **   * May be used by a database client in the future, or
+  **   * Is the most recently checkpointed snapshot (i.e. the one that will
+  **     be used following recovery if a failure occurs at this point).
+  */
+  rc = lsmCheckpointSynced(pDb, &iSynced, 0, 0);
+  if( rc==LSM_OK && iSynced==0 ) iSynced = p->iId;
+  iInUse = iSynced;
+  if( rc==LSM_OK && pDb->iReader>=0 ){
+    assert( pDb->pClient );
+    iInUse = LSM_MIN(iInUse, pDb->pClient->iId);
+  }
+  if( rc==LSM_OK ) rc = firstSnapshotInUse(pDb, &iInUse);
+
+#ifdef LSM_LOG_FREELIST
+  {
+    lsmLogMessage(pDb, 0, "lsmBlockAllocate(): "
+        "snapshot-in-use: %lld (iSynced=%lld) (client-id=%lld)", 
+        iInUse, iSynced, (pDb->iReader>=0 ? pDb->pClient->iId : 0)
+    );
+  }
+#endif
+
+
+  /* Unless there exists a read-only transaction (which prevents us from
+  ** recycling any blocks regardless, query the free block list for a 
+  ** suitable block to reuse. 
+  **
+  ** It might seem more natural to check for a read-only transaction at
+  ** the start of this function. However, it is better do wait until after
+  ** the call to lsmCheckpointSynced() to do so.
+  */
+  if( rc==LSM_OK ){
+    int bRotrans;
+    rc = lsmDetectRoTrans(pDb, &bRotrans);
+
+    if( rc==LSM_OK && bRotrans==0 ){
+      rc = findFreeblock(pDb, iInUse, (iBefore>0), &iRet);
+    }
+  }
+
+  if( iBefore>0 && (iRet<=0 || iRet>=iBefore) ){
+    iRet = 0;
+
+  }else if( rc==LSM_OK ){
+    /* If a block was found in the free block list, use it and remove it from 
+    ** the list. Otherwise, if no suitable block was found, allocate one from
+    ** the end of the file.  */
+    if( iRet>0 ){
+#ifdef LSM_LOG_FREELIST
+      lsmLogMessage(pDb, 0, 
+          "reusing block %d (snapshot-in-use=%lld)", iRet, iInUse);
+#endif
+      rc = freelistAppend(pDb, iRet, -1);
+      if( rc==LSM_OK ){
+        rc = dbTruncate(pDb, iInUse);
+      }
+    }else{
+      iRet = ++(p->nBlock);
+#ifdef LSM_LOG_FREELIST
+      lsmLogMessage(pDb, 0, "extending file to %d blocks", iRet);
+#endif
+    }
+  }
+
+  assert( iBefore>0 || iRet>0 || rc!=LSM_OK );
+  *piBlk = iRet;
+  return rc;
+}
+
+/*
+** Free a database block. The worker snapshot must be held in order to call 
+** this function.
+**
+** If successful, LSM_OK is returned. Otherwise, an lsm error code (e.g. 
+** LSM_NOMEM).
+*/
+int lsmBlockFree(lsm_db *pDb, int iBlk){
+  Snapshot *p = pDb->pWorker;
+  assert( lsmShmAssertWorker(pDb) );
+
+#ifdef LSM_LOG_FREELIST
+  lsmLogMessage(pDb, LSM_OK, "lsmBlockFree(): Free block %d", iBlk);
+#endif
+
+  return freelistAppend(pDb, iBlk, p->iId);
+}
+
+/*
+** Refree a database block. The worker snapshot must be held in order to call 
+** this function.
+**
+** Refreeing is required when a block is allocated using lsmBlockAllocate()
+** but then not used. This function is used to push the block back onto
+** the freelist. Refreeing a block is different from freeing is, as a refreed
+** block may be reused immediately. Whereas a freed block can not be reused 
+** until (at least) after the next checkpoint.
+*/
+int lsmBlockRefree(lsm_db *pDb, int iBlk){
+  int rc = LSM_OK;                /* Return code */
+
+#ifdef LSM_LOG_FREELIST
+  lsmLogMessage(pDb, LSM_OK, "lsmBlockRefree(): Refree block %d", iBlk);
+#endif
+
+  rc = freelistAppend(pDb, iBlk, 0);
+  return rc;
+}
+
+/*
+** If required, copy a database checkpoint from shared memory into the
+** database itself.
+**
+** The WORKER lock must not be held when this is called. This is because
+** this function may indirectly call fsync(). And the WORKER lock should
+** not be held that long (in case it is required by a client flushing an
+** in-memory tree to disk).
+*/
+int lsmCheckpointWrite(lsm_db *pDb, u32 *pnWrite){
+  int rc;                         /* Return Code */
+  u32 nWrite = 0;
+
+  assert( pDb->pWorker==0 );
+  assert( 1 || pDb->pClient==0 );
+  assert( lsmShmAssertLock(pDb, LSM_LOCK_WORKER, LSM_LOCK_UNLOCK) );
+
+  rc = lsmShmLock(pDb, LSM_LOCK_CHECKPOINTER, LSM_LOCK_EXCL, 0);
+  if( rc!=LSM_OK ) return rc;
+
+  rc = lsmCheckpointLoad(pDb, 0);
+  if( rc==LSM_OK ){
+    int nBlock = lsmCheckpointNBlock(pDb->aSnapshot);
+    ShmHeader *pShm = pDb->pShmhdr;
+    int bDone = 0;                /* True if checkpoint is already stored */
+
+    /* Check if this checkpoint has already been written to the database
+    ** file. If so, set variable bDone to true.  */
+    if( pShm->iMetaPage ){
+      MetaPage *pPg;              /* Meta page */
+      u8 *aData;                  /* Meta-page data buffer */
+      int nData;                  /* Size of aData[] in bytes */
+      i64 iCkpt;                  /* Id of checkpoint just loaded */
+      i64 iDisk = 0;              /* Id of checkpoint already stored in db */
+      iCkpt = lsmCheckpointId(pDb->aSnapshot, 0);
+      rc = lsmFsMetaPageGet(pDb->pFS, 0, pShm->iMetaPage, &pPg);
+      if( rc==LSM_OK ){
+        aData = lsmFsMetaPageData(pPg, &nData);
+        iDisk = lsmCheckpointId((u32 *)aData, 1);
+        nWrite = lsmCheckpointNWrite((u32 *)aData, 1);
+        lsmFsMetaPageRelease(pPg);
+      }
+      bDone = (iDisk>=iCkpt);
+    }
+
+    if( rc==LSM_OK && bDone==0 ){
+      int iMeta = (pShm->iMetaPage % 2) + 1;
+      if( pDb->eSafety!=LSM_SAFETY_OFF ){
+        rc = lsmFsSyncDb(pDb->pFS, nBlock);
+      }
+      if( rc==LSM_OK ) rc = lsmCheckpointStore(pDb, iMeta);
+      if( rc==LSM_OK && pDb->eSafety!=LSM_SAFETY_OFF){
+        rc = lsmFsSyncDb(pDb->pFS, 0);
+      }
+      if( rc==LSM_OK ){
+        pShm->iMetaPage = iMeta;
+        nWrite = lsmCheckpointNWrite(pDb->aSnapshot, 0) - nWrite;
+      }
+#ifdef LSM_LOG_WORK
+      lsmLogMessage(pDb, 0, "finish checkpoint %d", 
+          (int)lsmCheckpointId(pDb->aSnapshot, 0)
+      );
+#endif
+    }
+  }
+
+  lsmShmLock(pDb, LSM_LOCK_CHECKPOINTER, LSM_LOCK_UNLOCK, 0);
+  if( pnWrite && rc==LSM_OK ) *pnWrite = nWrite;
+  return rc;
+}
+
+int lsmBeginWork(lsm_db *pDb){
+  int rc;
+
+  /* Attempt to take the WORKER lock */
+  rc = lsmShmLock(pDb, LSM_LOCK_WORKER, LSM_LOCK_EXCL, 0);
+
+  /* Deserialize the current worker snapshot */
+  if( rc==LSM_OK ){
+    rc = lsmCheckpointLoadWorker(pDb);
+  }
+  return rc;
+}
+
+void lsmFreeSnapshot(lsm_env *pEnv, Snapshot *p){
+  if( p ){
+    lsmSortedFreeLevel(pEnv, p->pLevel);
+    lsmFree(pEnv, p->freelist.aEntry);
+    lsmFree(pEnv, p->redirect.a);
+    lsmFree(pEnv, p);
+  }
+}
+
+/*
+** Attempt to populate one of the read-lock slots to contain lock values
+** iLsm/iShm. Or, if such a slot exists already, this function is a no-op.
+**
+** It is not an error if no slot can be populated because the write-lock
+** cannot be obtained. If any other error occurs, return an LSM error code.
+** Otherwise, LSM_OK.
+**
+** This function is called at various points to try to ensure that there
+** always exists at least one read-lock slot that can be used by a read-only
+** client. And so that, in the usual case, there is an "exact match" available
+** whenever a read transaction is opened by any client. At present this
+** function is called when:
+**
+**    * A write transaction that called lsmTreeDiscardOld() is committed, and
+**    * Whenever the working snapshot is updated (i.e. lsmFinishWork()).
+*/
+static int dbSetReadLock(lsm_db *db, i64 iLsm, u32 iShm){
+  int rc = LSM_OK;
+  ShmHeader *pShm = db->pShmhdr;
+  int i;
+
+  /* Check if there is already a slot containing the required values. */
+  for(i=0; i<LSM_LOCK_NREADER; i++){
+    ShmReader *p = &pShm->aReader[i];
+    if( p->iLsmId==iLsm && p->iTreeId==iShm ) return LSM_OK;
+  }
+
+  /* Iterate through all read-lock slots, attempting to take a write-lock
+  ** on each of them. If a write-lock succeeds, populate the locked slot
+  ** with the required values and break out of the loop.  */
+  for(i=0; rc==LSM_OK && i<LSM_LOCK_NREADER; i++){
+    rc = lsmShmLock(db, LSM_LOCK_READER(i), LSM_LOCK_EXCL, 0);
+    if( rc==LSM_BUSY ){
+      rc = LSM_OK;
+    }else{
+      ShmReader *p = &pShm->aReader[i];
+      p->iLsmId = iLsm;
+      p->iTreeId = iShm;
+      lsmShmLock(db, LSM_LOCK_READER(i), LSM_LOCK_UNLOCK, 0);
+      break;
+    }
+  }
+
+  return rc;
+}
+
+/*
+** Release the read-lock currently held by connection db.
+*/
+int dbReleaseReadlock(lsm_db *db){
+  int rc = LSM_OK;
+  if( db->iReader>=0 ){
+    rc = lsmShmLock(db, LSM_LOCK_READER(db->iReader), LSM_LOCK_UNLOCK, 0);
+    db->iReader = -1;
+  }
+  db->bRoTrans = 0;
+  return rc;
+}
+
+
+/*
+** Argument bFlush is true if the contents of the in-memory tree has just
+** been flushed to disk. The significance of this is that once the snapshot
+** created to hold the updated state of the database is synced to disk, log
+** file space can be recycled.
+*/
+void lsmFinishWork(lsm_db *pDb, int bFlush, int *pRc){
+  int rc = *pRc;
+  assert( rc!=0 || pDb->pWorker );
+  if( pDb->pWorker ){
+    /* If no error has occurred, serialize the worker snapshot and write
+    ** it to shared memory.  */
+    if( rc==LSM_OK ){
+      rc = lsmSaveWorker(pDb, bFlush);
+    }
+
+    /* Assuming no error has occurred, update a read lock slot with the
+    ** new snapshot id (see comments above function dbSetReadLock()).  */
+    if( rc==LSM_OK ){
+      if( pDb->iReader<0 ){
+        rc = lsmTreeLoadHeader(pDb, 0);
+      }
+      if( rc==LSM_OK ){
+        rc = dbSetReadLock(pDb, pDb->pWorker->iId, pDb->treehdr.iUsedShmid);
+      }
+    }
+
+    /* Free the snapshot object. */
+    lsmFreeSnapshot(pDb->pEnv, pDb->pWorker);
+    pDb->pWorker = 0;
+  }
+
+  lsmShmLock(pDb, LSM_LOCK_WORKER, LSM_LOCK_UNLOCK, 0);
+  *pRc = rc;
+}
+
+/*
+** Called when recovery is finished.
+*/
+int lsmFinishRecovery(lsm_db *pDb){
+  lsmTreeEndTransaction(pDb, 1);
+  return LSM_OK;
+}
+
+/*
+** Check if the currently configured compression functions
+** (LSM_CONFIG_SET_COMPRESSION) are compatible with a database that has its
+** compression id set to iReq. Compression routines are compatible if iReq
+** is zero (indicating the database is empty), or if it is equal to the 
+** compression id of the configured compression routines.
+**
+** If the check shows that the current compression are incompatible and there
+** is a compression factory registered, give it a chance to install new
+** compression routines.
+**
+** If, after any registered factory is invoked, the compression functions
+** are still incompatible, return LSM_MISMATCH. Otherwise, LSM_OK.
+*/
+int lsmCheckCompressionId(lsm_db *pDb, u32 iReq){
+  if( iReq!=LSM_COMPRESSION_EMPTY && pDb->compress.iId!=iReq ){
+    if( pDb->factory.xFactory ){
+      pDb->bInFactory = 1;
+      pDb->factory.xFactory(pDb->factory.pCtx, pDb, iReq);
+      pDb->bInFactory = 0;
+    }
+    if( pDb->compress.iId!=iReq ){
+      /* Incompatible */
+      return LSM_MISMATCH;
+    }
+  }
+  /* Compatible */
+  return LSM_OK;
+}
+
+/*
+** Begin a read transaction. This function is a no-op if the connection
+** passed as the only argument already has an open read transaction.
+*/
+int lsmBeginReadTrans(lsm_db *pDb){
+  const int MAX_READLOCK_ATTEMPTS = 10;
+  const int nMaxAttempt = (pDb->bRoTrans ? 1 : MAX_READLOCK_ATTEMPTS);
+
+  int rc = LSM_OK;                /* Return code */
+  int iAttempt = 0;
+
+  assert( pDb->pWorker==0 );
+
+  while( rc==LSM_OK && pDb->iReader<0 && (iAttempt++)<nMaxAttempt ){
+    int iTreehdr = 0;
+    int iSnap = 0;
+    assert( pDb->pCsr==0 && pDb->nTransOpen==0 );
+
+    /* Load the in-memory tree header. */
+    rc = lsmTreeLoadHeader(pDb, &iTreehdr);
+
+    /* Load the database snapshot */
+    if( rc==LSM_OK ){
+      if( lsmCheckpointClientCacheOk(pDb)==0 ){
+        lsmFreeSnapshot(pDb->pEnv, pDb->pClient);
+        pDb->pClient = 0;
+        lsmMCursorFreeCache(pDb);
+        lsmFsPurgeCache(pDb->pFS);
+        rc = lsmCheckpointLoad(pDb, &iSnap);
+      }else{
+        iSnap = 1;
+      }
+    }
+
+    /* Take a read-lock on the tree and snapshot just loaded. Then check
+    ** that the shared-memory still contains the same values. If so, proceed.
+    ** Otherwise, relinquish the read-lock and retry the whole procedure
+    ** (starting with loading the in-memory tree header).  */
+    if( rc==LSM_OK ){
+      u32 iShmMax = pDb->treehdr.iUsedShmid;
+      u32 iShmMin = pDb->treehdr.iNextShmid+1-LSM_MAX_SHMCHUNKS;
+      rc = lsmReadlock(
+          pDb, lsmCheckpointId(pDb->aSnapshot, 0), iShmMin, iShmMax
+      );
+      if( rc==LSM_OK ){
+        if( lsmTreeLoadHeaderOk(pDb, iTreehdr)
+         && lsmCheckpointLoadOk(pDb, iSnap)
+        ){
+          /* Read lock has been successfully obtained. Deserialize the 
+          ** checkpoint just loaded. TODO: This will be removed after 
+          ** lsm_sorted.c is changed to work directly from the serialized
+          ** version of the snapshot.  */
+          if( pDb->pClient==0 ){
+            rc = lsmCheckpointDeserialize(pDb, 0, pDb->aSnapshot,&pDb->pClient);
+          }
+          assert( (rc==LSM_OK)==(pDb->pClient!=0) );
+          assert( pDb->iReader>=0 );
+
+          /* Check that the client has the right compression hooks loaded.
+          ** If not, set rc to LSM_MISMATCH.  */
+          if( rc==LSM_OK ){
+            rc = lsmCheckCompressionId(pDb, pDb->pClient->iCmpId);
+          }
+        }else{
+          rc = dbReleaseReadlock(pDb);
+        }
+      }
+
+      if( rc==LSM_BUSY ){
+        rc = LSM_OK;
+      }
+    }
+#if 0
+if( rc==LSM_OK && pDb->pClient ){
+  fprintf(stderr, 
+      "reading %p: snapshot:%d used-shmid:%d trans-id:%d iOldShmid=%d\n",
+      (void *)pDb,
+      (int)pDb->pClient->iId, (int)pDb->treehdr.iUsedShmid, 
+      (int)pDb->treehdr.root.iTransId,
+      (int)pDb->treehdr.iOldShmid
+  );
+}
+#endif
+  }
+
+  if( rc==LSM_OK ){
+    rc = lsmShmCacheChunks(pDb, pDb->treehdr.nChunk);
+  }
+  if( rc!=LSM_OK ){
+    dbReleaseReadlock(pDb);
+  }
+  if( pDb->pClient==0 && rc==LSM_OK ) rc = LSM_BUSY;
+  return rc;
+}
+
+/*
+** This function is used by a read-write connection to determine if there
+** are currently one or more read-only transactions open on the database
+** (in this context a read-only transaction is one opened by a read-only
+** connection on a non-live database).
+**
+** If no error occurs, LSM_OK is returned and *pbExists is set to true if
+** some other connection has a read-only transaction open, or false 
+** otherwise. If an error occurs an LSM error code is returned and the final
+** value of *pbExist is undefined.
+*/
+int lsmDetectRoTrans(lsm_db *db, int *pbExist){
+  int rc;
+
+  /* Only a read-write connection may use this function. */
+  assert( db->bReadonly==0 );
+
+  rc = lsmShmTestLock(db, LSM_LOCK_ROTRANS, 1, LSM_LOCK_EXCL);
+  if( rc==LSM_BUSY ){
+    *pbExist = 1;
+    rc = LSM_OK;
+  }else{
+    *pbExist = 0;
+  }
+
+  return rc;
+}
+
+/*
+** db is a read-only database handle in the disconnected state. This function
+** attempts to open a read-transaction on the database. This may involve
+** connecting to the database system (opening shared memory etc.).
+*/
+int lsmBeginRoTrans(lsm_db *db){
+  int rc = LSM_OK;
+
+  assert( db->bReadonly && db->pShmhdr==0 );
+  assert( db->iReader<0 );
+
+  if( db->bRoTrans==0 ){
+
+    /* Attempt a shared-lock on DMS1. */
+    rc = lsmShmLock(db, LSM_LOCK_DMS1, LSM_LOCK_SHARED, 0);
+    if( rc!=LSM_OK ) return rc;
+
+    rc = lsmShmTestLock(
+        db, LSM_LOCK_RWCLIENT(0), LSM_LOCK_NREADER, LSM_LOCK_SHARED
+    );
+    if( rc==LSM_OK ){
+      /* System is not live. Take a SHARED lock on the ROTRANS byte and
+      ** release DMS1. Locking ROTRANS tells all read-write clients that they
+      ** may not recycle any disk space from within the database or log files,
+      ** as a read-only client may be using it.  */
+      rc = lsmShmLock(db, LSM_LOCK_ROTRANS, LSM_LOCK_SHARED, 0);
+      lsmShmLock(db, LSM_LOCK_DMS1, LSM_LOCK_UNLOCK, 0);
+
+      if( rc==LSM_OK ){
+        db->bRoTrans = 1;
+        rc = lsmShmCacheChunks(db, 1);
+        if( rc==LSM_OK ){
+          db->pShmhdr = (ShmHeader *)db->apShm[0];
+          memset(db->pShmhdr, 0, sizeof(ShmHeader));
+          rc = lsmCheckpointRecover(db);
+          if( rc==LSM_OK ){
+            rc = lsmLogRecover(db);
+          }
+        }
+      }
+    }else if( rc==LSM_BUSY ){
+      /* System is live! */
+      rc = lsmShmLock(db, LSM_LOCK_DMS3, LSM_LOCK_SHARED, 0);
+      lsmShmLock(db, LSM_LOCK_DMS1, LSM_LOCK_UNLOCK, 0);
+      if( rc==LSM_OK ){
+        rc = lsmShmCacheChunks(db, 1);
+        if( rc==LSM_OK ){
+          db->pShmhdr = (ShmHeader *)db->apShm[0];
+        }
+      }
+    }
+
+    /* In 'lsm_open()' we don't update the page and block sizes in the
+    ** Filesystem for 'readonly' connection. Because member 'db->pShmhdr' is a
+    ** nullpointer, this prevents loading a checkpoint. Now that the system is 
+    ** live this member should be set. So we can update both values in 
+    ** the Filesystem.
+    **
+    ** Configure the file-system connection with the page-size and block-size
+    ** of this database. Even if the database file is zero bytes in size
+    ** on disk, these values have been set in shared-memory by now, and so
+    ** are guaranteed not to change during the lifetime of this connection. */
+    if( LSM_OK==rc
+     && 0==lsmCheckpointClientCacheOk(db)
+     && LSM_OK==(rc=lsmCheckpointLoad(db, 0)) 
+    ){
+      lsmFsSetPageSize(db->pFS, lsmCheckpointPgsz(db->aSnapshot));
+      lsmFsSetBlockSize(db->pFS, lsmCheckpointBlksz(db->aSnapshot));
+    }
+
+    if( rc==LSM_OK ){
+      rc = lsmBeginReadTrans(db);
+    }
+  }
+
+  return rc;
+}
+
+/*
+** Close the currently open read transaction.
+*/
+void lsmFinishReadTrans(lsm_db *pDb){
+
+  /* Worker connections should not be closing read transactions. And
+  ** read transactions should only be closed after all cursors and write
+  ** transactions have been closed. Finally pClient should be non-NULL
+  ** only iff pDb->iReader>=0.  */
+  assert( pDb->pWorker==0 );
+  assert( pDb->pCsr==0 && pDb->nTransOpen==0 );
+
+  if( pDb->bRoTrans ){
+    int i;
+    for(i=0; i<pDb->nShm; i++){
+      lsmFree(pDb->pEnv, pDb->apShm[i]);
+    }
+    lsmFree(pDb->pEnv, pDb->apShm);
+    pDb->apShm = 0;
+    pDb->nShm = 0;
+    pDb->pShmhdr = 0;
+
+    lsmShmLock(pDb, LSM_LOCK_ROTRANS, LSM_LOCK_UNLOCK, 0);
+  }
+  dbReleaseReadlock(pDb);
+}
+
+/*
+** Open a write transaction.
+*/
+int lsmBeginWriteTrans(lsm_db *pDb){
+  int rc = LSM_OK;                /* Return code */
+  ShmHeader *pShm = pDb->pShmhdr; /* Shared memory header */
+
+  assert( pDb->nTransOpen==0 );
+  assert( pDb->bDiscardOld==0 );
+  assert( pDb->bReadonly==0 );
+
+  /* If there is no read-transaction open, open one now. */
+  if( pDb->iReader<0 ){
+    rc = lsmBeginReadTrans(pDb);
+  }
+
+  /* Attempt to take the WRITER lock */
+  if( rc==LSM_OK ){
+    rc = lsmShmLock(pDb, LSM_LOCK_WRITER, LSM_LOCK_EXCL, 0);
+  }
+
+  /* If the previous writer failed mid-transaction, run emergency rollback. */
+  if( rc==LSM_OK && pShm->bWriter ){
+    rc = lsmTreeRepair(pDb);
+    if( rc==LSM_OK ) pShm->bWriter = 0;
+  }
+
+  /* Check that this connection is currently reading from the most recent
+  ** version of the database. If not, return LSM_BUSY.  */
+  if( rc==LSM_OK && memcmp(&pShm->hdr1, &pDb->treehdr, sizeof(TreeHeader)) ){
+    rc = LSM_BUSY;
+  }
+
+  if( rc==LSM_OK ){
+    rc = lsmLogBegin(pDb);
+  }
+
+  /* If everything was successful, set the "transaction-in-progress" flag
+  ** and return LSM_OK. Otherwise, if some error occurred, relinquish the 
+  ** WRITER lock and return an error code.  */
+  if( rc==LSM_OK ){
+    TreeHeader *p = &pDb->treehdr;
+    pShm->bWriter = 1;
+    p->root.iTransId++;
+    if( lsmTreeHasOld(pDb) && p->iOldLog==pDb->pClient->iLogOff ){
+      lsmTreeDiscardOld(pDb);
+      pDb->bDiscardOld = 1;
+    }
+  }else{
+    lsmShmLock(pDb, LSM_LOCK_WRITER, LSM_LOCK_UNLOCK, 0);
+    if( pDb->pCsr==0 ) lsmFinishReadTrans(pDb);
+  }
+  return rc;
+}
+
+/*
+** End the current write transaction. The connection is left with an open
+** read transaction. It is an error to call this if there is no open write 
+** transaction.
+**
+** If the transaction was committed, then a commit record has already been
+** written into the log file when this function is called. Or, if the
+** transaction was rolled back, both the log file and in-memory tree 
+** structure have already been restored. In either case, this function 
+** merely releases locks and other resources held by the write-transaction.
+**
+** LSM_OK is returned if successful, or an LSM error code otherwise.
+*/
+int lsmFinishWriteTrans(lsm_db *pDb, int bCommit){
+  int rc = LSM_OK;
+  int bFlush = 0;
+
+  lsmLogEnd(pDb, bCommit);
+  if( rc==LSM_OK && bCommit && lsmTreeSize(pDb)>pDb->nTreeLimit ){
+    bFlush = 1;
+    lsmTreeMakeOld(pDb);
+  }
+  lsmTreeEndTransaction(pDb, bCommit);
+
+  if( rc==LSM_OK ){
+    if( bFlush && pDb->bAutowork ){
+      rc = lsmSortedAutoWork(pDb, 1);
+    }else if( bCommit && pDb->bDiscardOld ){
+      rc = dbSetReadLock(pDb, pDb->pClient->iId, pDb->treehdr.iUsedShmid);
+    }
+  }
+  pDb->bDiscardOld = 0;
+  lsmShmLock(pDb, LSM_LOCK_WRITER, LSM_LOCK_UNLOCK, 0);
+
+  if( bFlush && pDb->bAutowork==0 && pDb->xWork ){
+    pDb->xWork(pDb, pDb->pWorkCtx);
+  }
+  return rc;
+}
+
+
+/*
+** Return non-zero if the caller is holding the client mutex.
+*/
+#ifdef LSM_DEBUG
+int lsmHoldingClientMutex(lsm_db *pDb){
+  return lsmMutexHeld(pDb->pEnv, pDb->pDatabase->pClientMutex);
+}
+#endif
+
+static int slotIsUsable(ShmReader *p, i64 iLsm, u32 iShmMin, u32 iShmMax){
+  return( 
+      p->iLsmId && p->iLsmId<=iLsm 
+      && shm_sequence_ge(iShmMax, p->iTreeId)
+      && shm_sequence_ge(p->iTreeId, iShmMin)
+  );
+}
+
+/*
+** Obtain a read-lock on database version identified by the combination
+** of snapshot iLsm and tree iTree. Return LSM_OK if successful, or
+** an LSM error code otherwise.
+*/
+int lsmReadlock(lsm_db *db, i64 iLsm, u32 iShmMin, u32 iShmMax){
+  int rc = LSM_OK;
+  ShmHeader *pShm = db->pShmhdr;
+  int i;
+
+  assert( db->iReader<0 );
+  assert( shm_sequence_ge(iShmMax, iShmMin) );
+
+  /* This is a no-op if the read-only transaction flag is set. */
+  if( db->bRoTrans ){
+    db->iReader = 0;
+    return LSM_OK;
+  }
+
+  /* Search for an exact match. */
+  for(i=0; db->iReader<0 && rc==LSM_OK && i<LSM_LOCK_NREADER; i++){
+    ShmReader *p = &pShm->aReader[i];
+    if( p->iLsmId==iLsm && p->iTreeId==iShmMax ){
+      rc = lsmShmLock(db, LSM_LOCK_READER(i), LSM_LOCK_SHARED, 0);
+      if( rc==LSM_OK && p->iLsmId==iLsm && p->iTreeId==iShmMax ){
+        db->iReader = i;
+      }else if( rc==LSM_BUSY ){
+        rc = LSM_OK;
+      }
+    }
+  }
+
+  /* Try to obtain a write-lock on each slot, in order. If successful, set
+  ** the slot values to iLsm/iTree.  */
+  for(i=0; db->iReader<0 && rc==LSM_OK && i<LSM_LOCK_NREADER; i++){
+    rc = lsmShmLock(db, LSM_LOCK_READER(i), LSM_LOCK_EXCL, 0);
+    if( rc==LSM_BUSY ){
+      rc = LSM_OK;
+    }else{
+      ShmReader *p = &pShm->aReader[i];
+      p->iLsmId = iLsm;
+      p->iTreeId = iShmMax;
+      rc = lsmShmLock(db, LSM_LOCK_READER(i), LSM_LOCK_SHARED, 0);
+      assert( rc!=LSM_BUSY );
+      if( rc==LSM_OK ) db->iReader = i;
+    }
+  }
+
+  /* Search for any usable slot */
+  for(i=0; db->iReader<0 && rc==LSM_OK && i<LSM_LOCK_NREADER; i++){
+    ShmReader *p = &pShm->aReader[i];
+    if( slotIsUsable(p, iLsm, iShmMin, iShmMax) ){
+      rc = lsmShmLock(db, LSM_LOCK_READER(i), LSM_LOCK_SHARED, 0);
+      if( rc==LSM_OK && slotIsUsable(p, iLsm, iShmMin, iShmMax) ){
+        db->iReader = i;
+      }else if( rc==LSM_BUSY ){
+        rc = LSM_OK;
+      }
+    }
+  }
+
+  if( rc==LSM_OK && db->iReader<0 ){
+    rc = LSM_BUSY;
+  }
+  return rc;
+}
+
+/*
+** This is used to check if there exists a read-lock locking a particular
+** version of either the in-memory tree or database file. 
+**
+** If iLsmId is non-zero, then it is a snapshot id. If there exists a 
+** read-lock using this snapshot or newer, set *pbInUse to true. Or,
+** if there is no such read-lock, set it to false.
+**
+** Or, if iLsmId is zero, then iShmid is a shared-memory sequence id.
+** Search for a read-lock using this sequence id or newer. etc.
+*/
+static int isInUse(lsm_db *db, i64 iLsmId, u32 iShmid, int *pbInUse){
+  ShmHeader *pShm = db->pShmhdr;
+  int i;
+  int rc = LSM_OK;
+
+  for(i=0; rc==LSM_OK && i<LSM_LOCK_NREADER; i++){
+    ShmReader *p = &pShm->aReader[i];
+    if( p->iLsmId ){
+      if( (iLsmId!=0 && p->iLsmId!=0 && iLsmId>=p->iLsmId) 
+       || (iLsmId==0 && shm_sequence_ge(p->iTreeId, iShmid))
+      ){
+        rc = lsmShmLock(db, LSM_LOCK_READER(i), LSM_LOCK_EXCL, 0);
+        if( rc==LSM_OK ){
+          p->iLsmId = 0;
+          lsmShmLock(db, LSM_LOCK_READER(i), LSM_LOCK_UNLOCK, 0);
+        }
+      }
+    }
+  }
+
+  if( rc==LSM_BUSY ){
+    *pbInUse = 1;
+    return LSM_OK;
+  }
+  *pbInUse = 0;
+  return rc;
+}
+
+/*
+** This function is called by worker connections to determine the smallest
+** snapshot id that is currently in use by a database client. The worker
+** connection uses this result to determine whether or not it is safe to
+** recycle a database block.
+*/
+static int firstSnapshotInUse(
+  lsm_db *db,                     /* Database handle */
+  i64 *piInUse                    /* IN/OUT: Smallest snapshot id in use */
+){
+  ShmHeader *pShm = db->pShmhdr;
+  i64 iInUse = *piInUse;
+  int i;
+
+  assert( iInUse>0 );
+  for(i=0; i<LSM_LOCK_NREADER; i++){
+    ShmReader *p = &pShm->aReader[i];
+    if( p->iLsmId ){
+      i64 iThis = p->iLsmId;
+      if( iThis!=0 && iInUse>iThis ){
+        int rc = lsmShmLock(db, LSM_LOCK_READER(i), LSM_LOCK_EXCL, 0);
+        if( rc==LSM_OK ){
+          p->iLsmId = 0;
+          lsmShmLock(db, LSM_LOCK_READER(i), LSM_LOCK_UNLOCK, 0);
+        }else if( rc==LSM_BUSY ){
+          iInUse = iThis;
+        }else{
+          /* Some error other than LSM_BUSY. Return the error code to
+          ** the caller in this case.  */
+          return rc;
+        }
+      }
+    }
+  }
+
+  *piInUse = iInUse;
+  return LSM_OK;
+}
+
+int lsmTreeInUse(lsm_db *db, u32 iShmid, int *pbInUse){
+  if( db->treehdr.iUsedShmid==iShmid ){
+    *pbInUse = 1;
+    return LSM_OK;
+  }
+  return isInUse(db, 0, iShmid, pbInUse);
+}
+
+int lsmLsmInUse(lsm_db *db, i64 iLsmId, int *pbInUse){
+  if( db->pClient && db->pClient->iId<=iLsmId ){
+    *pbInUse = 1;
+    return LSM_OK;
+  }
+  return isInUse(db, iLsmId, 0, pbInUse);
+}
+
+/*
+** This function may only be called after a successful call to
+** lsmDbDatabaseConnect(). It returns true if the connection is in
+** multi-process mode, or false otherwise.
+*/
+int lsmDbMultiProc(lsm_db *pDb){
+  return pDb->pDatabase && pDb->pDatabase->bMultiProc;
+}
+
+
+/*************************************************************************
+**************************************************************************
+**************************************************************************
+**************************************************************************
+**************************************************************************
+*************************************************************************/
+
+/*
+** Ensure that database connection db has cached pointers to at least the 
+** first nChunk chunks of shared memory.
+*/
+int lsmShmCacheChunks(lsm_db *db, int nChunk){
+  int rc = LSM_OK;
+  if( nChunk>db->nShm ){
+    static const int NINCR = 16;
+    Database *p = db->pDatabase;
+    lsm_env *pEnv = db->pEnv;
+    int nAlloc;
+    int i;
+
+    /* Ensure that the db->apShm[] array is large enough. If an attempt to
+    ** allocate memory fails, return LSM_NOMEM immediately. The apShm[] array
+    ** is always extended in multiples of 16 entries - so the actual allocated
+    ** size can be inferred from nShm.  */ 
+    nAlloc = ((db->nShm + NINCR - 1) / NINCR) * NINCR;
+    while( nChunk>=nAlloc ){
+      void **apShm;
+      nAlloc += NINCR;
+      apShm = lsmRealloc(pEnv, db->apShm, sizeof(void*)*nAlloc);
+      if( !apShm ) return LSM_NOMEM_BKPT;
+      db->apShm = apShm;
+    }
+
+    if( db->bRoTrans ){
+      for(i=db->nShm; rc==LSM_OK && i<nChunk; i++){
+        db->apShm[i] = lsmMallocZeroRc(pEnv, LSM_SHM_CHUNK_SIZE, &rc);
+        db->nShm++;
+      }
+
+    }else{
+
+      /* Enter the client mutex */
+      lsmMutexEnter(pEnv, p->pClientMutex);
+
+      /* Extend the Database objects apShmChunk[] array if necessary. Using the
+       ** same pattern as for the lsm_db.apShm[] array above.  */
+      nAlloc = ((p->nShmChunk + NINCR - 1) / NINCR) * NINCR;
+      while( nChunk>=nAlloc ){
+        void **apShm;
+        nAlloc +=  NINCR;
+        apShm = lsmRealloc(pEnv, p->apShmChunk, sizeof(void*)*nAlloc);
+        if( !apShm ){
+          rc = LSM_NOMEM_BKPT;
+          break;
+        }
+        p->apShmChunk = apShm;
+      }
+
+      for(i=db->nShm; rc==LSM_OK && i<nChunk; i++){
+        if( i>=p->nShmChunk ){
+          void *pChunk = 0;
+          if( p->bMultiProc==0 ){
+            /* Single process mode */
+            pChunk = lsmMallocZeroRc(pEnv, LSM_SHM_CHUNK_SIZE, &rc);
+          }else{
+            /* Multi-process mode */
+            rc = lsmEnvShmMap(pEnv, p->pFile, i, LSM_SHM_CHUNK_SIZE, &pChunk);
+          }
+          if( rc==LSM_OK ){
+            p->apShmChunk[i] = pChunk;
+            p->nShmChunk++;
+          }
+        }
+        if( rc==LSM_OK ){
+          db->apShm[i] = p->apShmChunk[i];
+          db->nShm++;
+        }
+      }
+
+      /* Release the client mutex */
+      lsmMutexLeave(pEnv, p->pClientMutex);
+    }
+  }
+
+  return rc;
+}
+
+static int lockSharedFile(lsm_env *pEnv, Database *p, int iLock, int eOp){
+  int rc = LSM_OK;
+  if( p->bMultiProc ){
+    rc = lsmEnvLock(pEnv, p->pFile, iLock, eOp);
+  }
+  return rc;
+}
+
+/*
+** Test if it would be possible for connection db to obtain a lock of type
+** eType on the nLock locks starting at iLock. If so, return LSM_OK. If it
+** would not be possible to obtain the lock due to a lock held by another
+** connection, return LSM_BUSY. If an IO or other error occurs (i.e. in the 
+** lsm_env.xTestLock function), return some other LSM error code.
+**
+** Note that this function never actually locks the database - it merely
+** queries the system to see if there exists a lock that would prevent
+** it from doing so.
+*/
+int lsmShmTestLock(
+  lsm_db *db,
+  int iLock,
+  int nLock,
+  int eOp
+){
+  int rc = LSM_OK;
+  lsm_db *pIter;
+  Database *p = db->pDatabase;
+  int i;
+  u64 mask = 0;
+
+  for(i=iLock; i<(iLock+nLock); i++){
+    mask |= ((u64)1 << (iLock-1));
+    if( eOp==LSM_LOCK_EXCL ) mask |= ((u64)1 << (iLock+32-1));
+  }
+
+  lsmMutexEnter(db->pEnv, p->pClientMutex);
+  for(pIter=p->pConn; pIter; pIter=pIter->pNext){
+    if( pIter!=db && (pIter->mLock & mask) ){
+      assert( pIter!=db );
+      break;
+    }
+  }
+
+  if( pIter ){
+    rc = LSM_BUSY;
+  }else if( p->bMultiProc ){
+    rc = lsmEnvTestLock(db->pEnv, p->pFile, iLock, nLock, eOp);
+  }
+
+  lsmMutexLeave(db->pEnv, p->pClientMutex);
+  return rc;
+}
+
+/*
+** Attempt to obtain the lock identified by the iLock and bExcl parameters.
+** If successful, return LSM_OK. If the lock cannot be obtained because 
+** there exists some other conflicting lock, return LSM_BUSY. If some other
+** error occurs, return an LSM error code.
+**
+** Parameter iLock must be one of LSM_LOCK_WRITER, WORKER or CHECKPOINTER,
+** or else a value returned by the LSM_LOCK_READER macro.
+*/
+int lsmShmLock(
+  lsm_db *db, 
+  int iLock,
+  int eOp,                        /* One of LSM_LOCK_UNLOCK, SHARED or EXCL */
+  int bBlock                      /* True for a blocking lock */
+){
+  lsm_db *pIter;
+  const u64 me = ((u64)1 << (iLock-1));
+  const u64 ms = ((u64)1 << (iLock+32-1));
+  int rc = LSM_OK;
+  Database *p = db->pDatabase;
+
+  assert( eOp!=LSM_LOCK_EXCL || p->bReadonly==0 );
+  assert( iLock>=1 && iLock<=LSM_LOCK_RWCLIENT(LSM_LOCK_NRWCLIENT-1) );
+  assert( LSM_LOCK_RWCLIENT(LSM_LOCK_NRWCLIENT-1)<=32 );
+  assert( eOp==LSM_LOCK_UNLOCK || eOp==LSM_LOCK_SHARED || eOp==LSM_LOCK_EXCL );
+
+  /* Check for a no-op. Proceed only if this is not one of those. */
+  if( (eOp==LSM_LOCK_UNLOCK && (db->mLock & (me|ms))!=0)
+   || (eOp==LSM_LOCK_SHARED && (db->mLock & (me|ms))!=ms)
+   || (eOp==LSM_LOCK_EXCL   && (db->mLock & me)==0)
+  ){
+    int nExcl = 0;                /* Number of connections holding EXCLUSIVE */
+    int nShared = 0;              /* Number of connections holding SHARED */
+    lsmMutexEnter(db->pEnv, p->pClientMutex);
+
+    /* Figure out the locks currently held by this process on iLock, not
+    ** including any held by connection db.  */
+    for(pIter=p->pConn; pIter; pIter=pIter->pNext){
+      assert( (pIter->mLock & me)==0 || (pIter->mLock & ms)!=0 );
+      if( pIter!=db ){
+        if( pIter->mLock & me ){
+          nExcl++;
+        }else if( pIter->mLock & ms ){
+          nShared++;
+        }
+      }
+    }
+    assert( nExcl==0 || nExcl==1 );
+    assert( nExcl==0 || nShared==0 );
+    assert( nExcl==0 || (db->mLock & (me|ms))==0 );
+
+    switch( eOp ){
+      case LSM_LOCK_UNLOCK:
+        if( nShared==0 ){
+          lockSharedFile(db->pEnv, p, iLock, LSM_LOCK_UNLOCK);
+        }
+        db->mLock &= ~(me|ms);
+        break;
+
+      case LSM_LOCK_SHARED:
+        if( nExcl ){
+          rc = LSM_BUSY;
+        }else{
+          if( nShared==0 ){
+            rc = lockSharedFile(db->pEnv, p, iLock, LSM_LOCK_SHARED);
+          }
+          if( rc==LSM_OK ){
+            db->mLock |= ms;
+            db->mLock &= ~me;
+          }
+        }
+        break;
+
+      default:
+        assert( eOp==LSM_LOCK_EXCL );
+        if( nExcl || nShared ){
+          rc = LSM_BUSY;
+        }else{
+          rc = lockSharedFile(db->pEnv, p, iLock, LSM_LOCK_EXCL);
+          if( rc==LSM_OK ){
+            db->mLock |= (me|ms);
+          }
+        }
+        break;
+    }
+
+    lsmMutexLeave(db->pEnv, p->pClientMutex);
+  }
+
+  return rc;
+}
+
+#ifdef LSM_DEBUG
+
+int shmLockType(lsm_db *db, int iLock){
+  const u64 me = ((u64)1 << (iLock-1));
+  const u64 ms = ((u64)1 << (iLock+32-1));
+
+  if( db->mLock & me ) return LSM_LOCK_EXCL;
+  if( db->mLock & ms ) return LSM_LOCK_SHARED;
+  return LSM_LOCK_UNLOCK;
+}
+
+/*
+** The arguments passed to this function are similar to those passed to
+** the lsmShmLock() function. However, instead of obtaining a new lock 
+** this function returns true if the specified connection already holds 
+** (or does not hold) such a lock, depending on the value of eOp. As
+** follows:
+**
+**   (eOp==LSM_LOCK_UNLOCK) -> true if db has no lock on iLock
+**   (eOp==LSM_LOCK_SHARED) -> true if db has at least a SHARED lock on iLock.
+**   (eOp==LSM_LOCK_EXCL)   -> true if db has an EXCLUSIVE lock on iLock.
+*/
+int lsmShmAssertLock(lsm_db *db, int iLock, int eOp){
+  int ret = 0;
+  int eHave;
+
+  assert( iLock>=1 && iLock<=LSM_LOCK_READER(LSM_LOCK_NREADER-1) );
+  assert( iLock<=16 );
+  assert( eOp==LSM_LOCK_UNLOCK || eOp==LSM_LOCK_SHARED || eOp==LSM_LOCK_EXCL );
+
+  eHave = shmLockType(db, iLock);
+
+  switch( eOp ){
+    case LSM_LOCK_UNLOCK:
+      ret = (eHave==LSM_LOCK_UNLOCK);
+      break;
+    case LSM_LOCK_SHARED:
+      ret = (eHave!=LSM_LOCK_UNLOCK);
+      break;
+    case LSM_LOCK_EXCL:
+      ret = (eHave==LSM_LOCK_EXCL);
+      break;
+    default:
+      assert( !"bad eOp value passed to lsmShmAssertLock()" );
+      break;
+  }
+
+  return ret;
+}
+
+int lsmShmAssertWorker(lsm_db *db){
+  return lsmShmAssertLock(db, LSM_LOCK_WORKER, LSM_LOCK_EXCL) && db->pWorker;
+}
+
+/*
+** This function does not contribute to library functionality, and is not
+** included in release builds. It is intended to be called from within
+** an interactive debugger.
+**
+** When called, this function prints a single line of human readable output
+** to stdout describing the locks currently held by the connection. For 
+** example:
+**
+**     (gdb) call print_db_locks(pDb)
+**     (shared on dms2) (exclusive on writer) 
+*/
+void print_db_locks(lsm_db *db){
+  int iLock;
+  for(iLock=0; iLock<16; iLock++){
+    int bOne = 0;
+    const char *azLock[] = {0, "shared", "exclusive"};
+    const char *azName[] = {
+      0, "dms1", "dms2", "writer", "worker", "checkpointer",
+      "reader0", "reader1", "reader2", "reader3", "reader4", "reader5"
+    };
+    int eHave = shmLockType(db, iLock);
+    if( azLock[eHave] ){
+      printf("%s(%s on %s)", (bOne?" ":""), azLock[eHave], azName[iLock]);
+      bOne = 1;
+    }
+  }
+  printf("\n");
+}
+void print_all_db_locks(lsm_db *db){
+  lsm_db *p;
+  for(p=db->pDatabase->pConn; p; p=p->pNext){
+    printf("%s connection %p ", ((p==db)?"*":""), p);
+    print_db_locks(p);
+  }
+}
+#endif
+
+void lsmShmBarrier(lsm_db *db){
+  lsmEnvShmBarrier(db->pEnv);
+}
+
+int lsm_checkpoint(lsm_db *pDb, int *pnKB){
+  int rc;                         /* Return code */
+  u32 nWrite = 0;                 /* Number of pages checkpointed */
+
+  /* Attempt the checkpoint. If successful, nWrite is set to the number of
+  ** pages written between this and the previous checkpoint.  */
+  rc = lsmCheckpointWrite(pDb, &nWrite);
+
+  /* If required, calculate the output variable (KB of data checkpointed). 
+  ** Set it to zero if an error occured.  */
+  if( pnKB ){
+    int nKB = 0;
+    if( rc==LSM_OK && nWrite ){
+      nKB = (((i64)nWrite * lsmFsPageSize(pDb->pFS)) + 1023) / 1024;
+    }
+    *pnKB = nKB;
+  }
+
+  return rc;
+}
diff --git a/ext/lsm1/lsm_sorted.c b/ext/lsm1/lsm_sorted.c
new file mode 100644
index 0000000000000000000000000000000000000000..6e5243e850666ec7a2a2cca9a61314af8f344f97
--- /dev/null
+++ b/ext/lsm1/lsm_sorted.c
@@ -0,0 +1,6195 @@
+/*
+** 2011-08-14
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** PAGE FORMAT:
+**
+**   The maximum page size is 65536 bytes.
+**
+**   Since all records are equal to or larger than 2 bytes in size, and 
+**   some space within the page is consumed by the page footer, there must
+**   be less than 2^15 records on each page.
+**
+**   Each page ends with a footer that describes the pages contents. This
+**   footer serves as similar purpose to the page header in an SQLite database.
+**   A footer is used instead of a header because it makes it easier to
+**   populate a new page based on a sorted list of key/value pairs.
+**
+**   The footer consists of the following values (starting at the end of
+**   the page and continuing backwards towards the start). All values are
+**   stored as unsigned big-endian integers.
+**
+**     * Number of records on page (2 bytes).
+**     * Flags field (2 bytes).
+**     * Left-hand pointer value (8 bytes).
+**     * The starting offset of each record (2 bytes per record).
+**
+**   Records may span pages. Unless it happens to be an exact fit, the part
+**   of the final record that starts on page X that does not fit on page X
+**   is stored at the start of page (X+1). This means there may be pages where
+**   (N==0). And on most pages the first record that starts on the page will
+**   not start at byte offset 0. For example:
+**
+**      aaaaa bbbbb ccc <footer>    cc eeeee fffff g <footer>    gggg....
+**
+** RECORD FORMAT:
+** 
+**   The first byte of the record is a flags byte. It is a combination
+**   of the following flags (defined in lsmInt.h):
+**
+**       LSM_START_DELETE
+**       LSM_END_DELETE 
+**       LSM_POINT_DELETE
+**       LSM_INSERT    
+**       LSM_SEPARATOR
+**       LSM_SYSTEMKEY
+**
+**   Immediately following the type byte is a pointer to the smallest key 
+**   in the next file that is larger than the key in the current record. The 
+**   pointer is encoded as a varint. When added to the 32-bit page number 
+**   stored in the footer, it is the page number of the page that contains the
+**   smallest key in the next sorted file that is larger than this key. 
+**
+**   Next is the number of bytes in the key, encoded as a varint.
+**
+**   If the LSM_INSERT flag is set, the number of bytes in the value, as
+**   a varint, is next.
+**
+**   Finally, the blob of data containing the key, and for LSM_INSERT
+**   records, the value as well.
+*/
+
+#ifndef _LSM_INT_H
+# include "lsmInt.h"
+#endif
+
+#define LSM_LOG_STRUCTURE 0
+#define LSM_LOG_DATA      0
+
+/*
+** Macros to help decode record types.
+*/
+#define rtTopic(eType)       ((eType) & LSM_SYSTEMKEY)
+#define rtIsDelete(eType)    (((eType) & 0x0F)==LSM_POINT_DELETE)
+
+#define rtIsSeparator(eType) (((eType) & LSM_SEPARATOR)!=0)
+#define rtIsWrite(eType)     (((eType) & LSM_INSERT)!=0)
+#define rtIsSystem(eType)    (((eType) & LSM_SYSTEMKEY)!=0)
+
+/*
+** The following macros are used to access a page footer.
+*/
+#define SEGMENT_NRECORD_OFFSET(pgsz)        ((pgsz) - 2)
+#define SEGMENT_FLAGS_OFFSET(pgsz)          ((pgsz) - 2 - 2)
+#define SEGMENT_POINTER_OFFSET(pgsz)        ((pgsz) - 2 - 2 - 8)
+#define SEGMENT_CELLPTR_OFFSET(pgsz, iCell) ((pgsz) - 2 - 2 - 8 - 2 - (iCell)*2)
+
+#define SEGMENT_EOF(pgsz, nEntry) SEGMENT_CELLPTR_OFFSET(pgsz, nEntry-1)
+
+#define SEGMENT_BTREE_FLAG     0x0001
+#define PGFTR_SKIP_NEXT_FLAG   0x0002
+#define PGFTR_SKIP_THIS_FLAG   0x0004
+
+
+#ifndef LSM_SEGMENTPTR_FREE_THRESHOLD
+# define LSM_SEGMENTPTR_FREE_THRESHOLD 1024
+#endif
+
+typedef struct SegmentPtr SegmentPtr;
+typedef struct LsmBlob LsmBlob;
+
+struct LsmBlob {
+  lsm_env *pEnv;
+  void *pData;
+  int nData;
+  int nAlloc;
+};
+
+/*
+** A SegmentPtr object may be used for one of two purposes:
+**
+**   * To iterate and/or seek within a single Segment (the combination of a 
+**     main run and an optional sorted run).
+**
+**   * To iterate through the separators array of a segment.
+*/
+struct SegmentPtr {
+  Level *pLevel;                /* Level object segment is part of */
+  Segment *pSeg;                /* Segment to access */
+
+  /* Current page. See segmentPtrLoadPage(). */
+  Page *pPg;                    /* Current page */
+  u16 flags;                    /* Copy of page flags field */
+  int nCell;                    /* Number of cells on pPg */
+  LsmPgno iPtr;                 /* Base cascade pointer */
+
+  /* Current cell. See segmentPtrLoadCell() */
+  int iCell;                    /* Current record within page pPg */
+  int eType;                    /* Type of current record */
+  LsmPgno iPgPtr;               /* Cascade pointer offset */
+  void *pKey; int nKey;         /* Key associated with current record */
+  void *pVal; int nVal;         /* Current record value (eType==WRITE only) */
+
+  /* Blobs used to allocate buffers for pKey and pVal as required */
+  LsmBlob blob1;
+  LsmBlob blob2;
+};
+
+/*
+** Used to iterate through the keys stored in a b-tree hierarchy from start
+** to finish. Only First() and Next() operations are required.
+**
+**   btreeCursorNew()
+**   btreeCursorFirst()
+**   btreeCursorNext()
+**   btreeCursorFree()
+**   btreeCursorPosition()
+**   btreeCursorRestore()
+*/
+typedef struct BtreePg BtreePg;
+typedef struct BtreeCursor BtreeCursor;
+struct BtreePg {
+  Page *pPage;
+  int iCell;
+};
+struct BtreeCursor {
+  Segment *pSeg;                  /* Iterate through this segments btree */
+  FileSystem *pFS;                /* File system to read pages from */
+  int nDepth;                     /* Allocated size of aPg[] */
+  int iPg;                        /* Current entry in aPg[]. -1 -> EOF. */
+  BtreePg *aPg;                   /* Pages from root to current location */
+
+  /* Cache of current entry. pKey==0 for EOF. */
+  void *pKey;
+  int nKey;
+  int eType;
+  LsmPgno iPtr;
+
+  /* Storage for key, if not local */
+  LsmBlob blob;
+};
+
+
+/*
+** A cursor used for merged searches or iterations through up to one
+** Tree structure and any number of sorted files.
+**
+**   lsmMCursorNew()
+**   lsmMCursorSeek()
+**   lsmMCursorNext()
+**   lsmMCursorPrev()
+**   lsmMCursorFirst()
+**   lsmMCursorLast()
+**   lsmMCursorKey()
+**   lsmMCursorValue()
+**   lsmMCursorValid()
+**
+** iFree:
+**   This variable is only used by cursors providing input data for a
+**   new top-level segment. Such cursors only ever iterate forwards, not
+**   backwards.
+*/
+struct MultiCursor {
+  lsm_db *pDb;                    /* Connection that owns this cursor */
+  MultiCursor *pNext;             /* Next cursor owned by connection pDb */
+  int flags;                      /* Mask of CURSOR_XXX flags */
+
+  int eType;                      /* Cache of current key type */
+  LsmBlob key;                    /* Cache of current key (or NULL) */
+  LsmBlob val;                    /* Cache of current value */
+
+  /* All the component cursors: */
+  TreeCursor *apTreeCsr[2];       /* Up to two tree cursors */
+  int iFree;                      /* Next element of free-list (-ve for eof) */
+  SegmentPtr *aPtr;               /* Array of segment pointers */
+  int nPtr;                       /* Size of array aPtr[] */
+  BtreeCursor *pBtCsr;            /* b-tree cursor (db writes only) */
+
+  /* Comparison results */
+  int nTree;                      /* Size of aTree[] array */
+  int *aTree;                     /* Array of comparison results */
+
+  /* Used by cursors flushing the in-memory tree only */
+  void *pSystemVal;               /* Pointer to buffer to free */
+
+  /* Used by worker cursors only */
+  LsmPgno *pPrevMergePtr;
+};
+
+/*
+** The following constants are used to assign integers to each component
+** cursor of a multi-cursor.
+*/
+#define CURSOR_DATA_TREE0     0   /* Current tree cursor (apTreeCsr[0]) */
+#define CURSOR_DATA_TREE1     1   /* The "old" tree, if any (apTreeCsr[1]) */
+#define CURSOR_DATA_SYSTEM    2   /* Free-list entries (new-toplevel only) */
+#define CURSOR_DATA_SEGMENT   3   /* First segment pointer (aPtr[0]) */
+
+/*
+** CURSOR_IGNORE_DELETE
+**   If set, this cursor will not visit SORTED_DELETE keys.
+**
+** CURSOR_FLUSH_FREELIST
+**   This cursor is being used to create a new toplevel. It should also 
+**   iterate through the contents of the in-memory free block list.
+**
+** CURSOR_IGNORE_SYSTEM
+**   If set, this cursor ignores system keys.
+**
+** CURSOR_NEXT_OK
+**   Set if it is Ok to call lsm_csr_next().
+**
+** CURSOR_PREV_OK
+**   Set if it is Ok to call lsm_csr_prev().
+**
+** CURSOR_READ_SEPARATORS
+**   Set if this cursor should visit the separator keys in segment 
+**   aPtr[nPtr-1].
+**
+** CURSOR_SEEK_EQ
+**   Cursor has undergone a successful lsm_csr_seek(LSM_SEEK_EQ) operation.
+**   The key and value are stored in MultiCursor.key and MultiCursor.val
+**   respectively.
+*/
+#define CURSOR_IGNORE_DELETE    0x00000001
+#define CURSOR_FLUSH_FREELIST   0x00000002
+#define CURSOR_IGNORE_SYSTEM    0x00000010
+#define CURSOR_NEXT_OK          0x00000020
+#define CURSOR_PREV_OK          0x00000040
+#define CURSOR_READ_SEPARATORS  0x00000080
+#define CURSOR_SEEK_EQ          0x00000100
+
+typedef struct MergeWorker MergeWorker;
+typedef struct Hierarchy Hierarchy;
+
+struct Hierarchy {
+  Page **apHier;
+  int nHier;
+};
+
+/*
+** aSave:
+**   When mergeWorkerNextPage() is called to advance to the next page in
+**   the output segment, if the bStore flag for an element of aSave[] is
+**   true, it is cleared and the corresponding iPgno value is set to the 
+**   page number of the page just completed.
+**
+**   aSave[0] is used to record the pointer value to be pushed into the
+**   b-tree hierarchy. aSave[1] is used to save the page number of the
+**   page containing the indirect key most recently written to the b-tree.
+**   see mergeWorkerPushHierarchy() for details.
+*/
+struct MergeWorker {
+  lsm_db *pDb;                    /* Database handle */
+  Level *pLevel;                  /* Worker snapshot Level being merged */
+  MultiCursor *pCsr;              /* Cursor to read new segment contents from */
+  int bFlush;                     /* True if this is an in-memory tree flush */
+  Hierarchy hier;                 /* B-tree hierarchy under construction */
+  Page *pPage;                    /* Current output page */
+  int nWork;                      /* Number of calls to mergeWorkerNextPage() */
+  LsmPgno *aGobble;               /* Gobble point for each input segment */
+
+  LsmPgno iIndirect;
+  struct SavedPgno {
+    LsmPgno iPgno;
+    int bStore;
+  } aSave[2];
+};
+
+#ifdef LSM_DEBUG_EXPENSIVE
+static int assertPointersOk(lsm_db *, Segment *, Segment *, int);
+static int assertBtreeOk(lsm_db *, Segment *);
+static void assertRunInOrder(lsm_db *pDb, Segment *pSeg);
+#else
+#define assertRunInOrder(x,y)
+#define assertBtreeOk(x,y)
+#endif
+
+
+struct FilePage { u8 *aData; int nData; };
+static u8 *fsPageData(Page *pPg, int *pnData){
+  *pnData = ((struct FilePage *)(pPg))->nData;
+  return ((struct FilePage *)(pPg))->aData;
+}
+/*UNUSED static u8 *fsPageDataPtr(Page *pPg){
+  return ((struct FilePage *)(pPg))->aData;
+}*/
+
+/*
+** Write nVal as a 16-bit unsigned big-endian integer into buffer aOut.
+*/
+void lsmPutU16(u8 *aOut, u16 nVal){
+  aOut[0] = (u8)((nVal>>8) & 0xFF);
+  aOut[1] = (u8)(nVal & 0xFF);
+}
+
+void lsmPutU32(u8 *aOut, u32 nVal){
+  aOut[0] = (u8)((nVal>>24) & 0xFF);
+  aOut[1] = (u8)((nVal>>16) & 0xFF);
+  aOut[2] = (u8)((nVal>> 8) & 0xFF);
+  aOut[3] = (u8)((nVal    ) & 0xFF);
+}
+
+int lsmGetU16(u8 *aOut){
+  return (aOut[0] << 8) + aOut[1];
+}
+
+u32 lsmGetU32(u8 *aOut){
+  return ((u32)aOut[0] << 24) 
+       + ((u32)aOut[1] << 16) 
+       + ((u32)aOut[2] << 8) 
+       + ((u32)aOut[3]);
+}
+
+u64 lsmGetU64(u8 *aOut){
+  return ((u64)aOut[0] << 56) 
+       + ((u64)aOut[1] << 48) 
+       + ((u64)aOut[2] << 40) 
+       + ((u64)aOut[3] << 32) 
+       + ((u64)aOut[4] << 24)
+       + ((u32)aOut[5] << 16) 
+       + ((u32)aOut[6] << 8) 
+       + ((u32)aOut[7]);
+}
+
+void lsmPutU64(u8 *aOut, u64 nVal){
+  aOut[0] = (u8)((nVal>>56) & 0xFF);
+  aOut[1] = (u8)((nVal>>48) & 0xFF);
+  aOut[2] = (u8)((nVal>>40) & 0xFF);
+  aOut[3] = (u8)((nVal>>32) & 0xFF);
+  aOut[4] = (u8)((nVal>>24) & 0xFF);
+  aOut[5] = (u8)((nVal>>16) & 0xFF);
+  aOut[6] = (u8)((nVal>> 8) & 0xFF);
+  aOut[7] = (u8)((nVal    ) & 0xFF);
+}
+
+static int sortedBlobGrow(lsm_env *pEnv, LsmBlob *pBlob, int nData){
+  assert( pBlob->pEnv==pEnv || (pBlob->pEnv==0 && pBlob->pData==0) );
+  if( pBlob->nAlloc<nData ){
+    pBlob->pData = lsmReallocOrFree(pEnv, pBlob->pData, nData);
+    if( !pBlob->pData ) return LSM_NOMEM_BKPT;
+    pBlob->nAlloc = nData;
+    pBlob->pEnv = pEnv;
+  }
+  return LSM_OK;
+}
+
+static int sortedBlobSet(lsm_env *pEnv, LsmBlob *pBlob, void *pData, int nData){
+  if( sortedBlobGrow(pEnv, pBlob, nData) ) return LSM_NOMEM;
+  memcpy(pBlob->pData, pData, nData);
+  pBlob->nData = nData;
+  return LSM_OK;
+}
+
+#if 0
+static int sortedBlobCopy(LsmBlob *pDest, LsmBlob *pSrc){
+  return sortedBlobSet(pDest, pSrc->pData, pSrc->nData);
+}
+#endif
+
+static void sortedBlobFree(LsmBlob *pBlob){
+  assert( pBlob->pEnv || pBlob->pData==0 );
+  if( pBlob->pData ) lsmFree(pBlob->pEnv, pBlob->pData);
+  memset(pBlob, 0, sizeof(LsmBlob));
+}
+
+static int sortedReadData(
+  Segment *pSeg,
+  Page *pPg,
+  int iOff,
+  int nByte,
+  void **ppData,
+  LsmBlob *pBlob
+){
+  int rc = LSM_OK;
+  int iEnd;
+  int nData;
+  int nCell;
+  u8 *aData;
+
+  aData = fsPageData(pPg, &nData);
+  nCell = lsmGetU16(&aData[SEGMENT_NRECORD_OFFSET(nData)]);
+  iEnd = SEGMENT_EOF(nData, nCell);
+  assert( iEnd>0 && iEnd<nData );
+
+  if( iOff+nByte<=iEnd ){
+    *ppData = (void *)&aData[iOff];
+  }else{
+    int nRem = nByte;
+    int i = iOff;
+    u8 *aDest;
+
+    /* Make sure the blob is big enough to store the value being loaded. */
+    rc = sortedBlobGrow(lsmPageEnv(pPg), pBlob, nByte);
+    if( rc!=LSM_OK ) return rc;
+    pBlob->nData = nByte;
+    aDest = (u8 *)pBlob->pData;
+    *ppData = pBlob->pData;
+
+    /* Increment the pointer pages ref-count. */
+    lsmFsPageRef(pPg);
+
+    while( rc==LSM_OK ){
+      Page *pNext;
+      int flags;
+
+      /* Copy data from pPg into the output buffer. */
+      int nCopy = LSM_MIN(nRem, iEnd-i);
+      if( nCopy>0 ){
+        memcpy(&aDest[nByte-nRem], &aData[i], nCopy);
+        nRem -= nCopy;
+        i += nCopy;
+        assert( nRem==0 || i==iEnd );
+      }
+      assert( nRem>=0 );
+      if( nRem==0 ) break;
+      i -= iEnd;
+
+      /* Grab the next page in the segment */
+
+      do {
+        rc = lsmFsDbPageNext(pSeg, pPg, 1, &pNext);
+        if( rc==LSM_OK && pNext==0 ){
+          rc = LSM_CORRUPT_BKPT;
+        }
+        if( rc ) break;
+        lsmFsPageRelease(pPg);
+        pPg = pNext;
+        aData = fsPageData(pPg, &nData);
+        flags = lsmGetU16(&aData[SEGMENT_FLAGS_OFFSET(nData)]);
+      }while( flags&SEGMENT_BTREE_FLAG );
+
+      iEnd = SEGMENT_EOF(nData, lsmGetU16(&aData[nData-2]));
+      assert( iEnd>0 && iEnd<nData );
+    }
+
+    lsmFsPageRelease(pPg);
+  }
+
+  return rc;
+}
+
+static int pageGetNRec(u8 *aData, int nData){
+  return (int)lsmGetU16(&aData[SEGMENT_NRECORD_OFFSET(nData)]);
+}
+
+static LsmPgno pageGetPtr(u8 *aData, int nData){
+  return (LsmPgno)lsmGetU64(&aData[SEGMENT_POINTER_OFFSET(nData)]);
+}
+
+static int pageGetFlags(u8 *aData, int nData){
+  return (int)lsmGetU16(&aData[SEGMENT_FLAGS_OFFSET(nData)]);
+}
+
+static u8 *pageGetCell(u8 *aData, int nData, int iCell){
+  return &aData[lsmGetU16(&aData[SEGMENT_CELLPTR_OFFSET(nData, iCell)])];
+}
+
+/*
+** Return the number of cells on page pPg.
+*/
+static int pageObjGetNRec(Page *pPg){
+  int nData;
+  u8 *aData = lsmFsPageData(pPg, &nData);
+  return pageGetNRec(aData, nData);
+}
+
+/*
+** Return the decoded (possibly relative) pointer value stored in cell 
+** iCell from page aData/nData.
+*/
+static LsmPgno pageGetRecordPtr(u8 *aData, int nData, int iCell){
+  LsmPgno iRet;                   /* Return value */
+  u8 *aCell;                      /* Pointer to cell iCell */
+
+  assert( iCell<pageGetNRec(aData, nData) && iCell>=0 );
+  aCell = pageGetCell(aData, nData, iCell);
+  lsmVarintGet64(&aCell[1], &iRet);
+  return iRet;
+}
+
+static u8 *pageGetKey(
+  Segment *pSeg,                  /* Segment pPg belongs to */
+  Page *pPg,                      /* Page to read from */
+  int iCell,                      /* Index of cell on page to read */
+  int *piTopic,                   /* OUT: Topic associated with this key */
+  int *pnKey,                     /* OUT: Size of key in bytes */
+  LsmBlob *pBlob                  /* If required, use this for dynamic memory */
+){
+  u8 *pKey;
+  i64 nDummy;
+  int eType;
+  u8 *aData;
+  int nData;
+
+  aData = fsPageData(pPg, &nData);
+
+  assert( !(pageGetFlags(aData, nData) & SEGMENT_BTREE_FLAG) );
+  assert( iCell<pageGetNRec(aData, nData) );
+
+  pKey = pageGetCell(aData, nData, iCell);
+  eType = *pKey++;
+  pKey += lsmVarintGet64(pKey, &nDummy);
+  pKey += lsmVarintGet32(pKey, pnKey);
+  if( rtIsWrite(eType) ){
+    pKey += lsmVarintGet64(pKey, &nDummy);
+  }
+  *piTopic = rtTopic(eType);
+
+  sortedReadData(pSeg, pPg, pKey-aData, *pnKey, (void **)&pKey, pBlob);
+  return pKey;
+}
+
+static int pageGetKeyCopy(
+  lsm_env *pEnv,                  /* Environment handle */
+  Segment *pSeg,                  /* Segment pPg belongs to */
+  Page *pPg,                      /* Page to read from */
+  int iCell,                      /* Index of cell on page to read */
+  int *piTopic,                   /* OUT: Topic associated with this key */
+  LsmBlob *pBlob                  /* If required, use this for dynamic memory */
+){
+  int rc = LSM_OK;
+  int nKey;
+  u8 *aKey;
+
+  aKey = pageGetKey(pSeg, pPg, iCell, piTopic, &nKey, pBlob);
+  assert( (void *)aKey!=pBlob->pData || nKey==pBlob->nData );
+  if( (void *)aKey!=pBlob->pData ){
+    rc = sortedBlobSet(pEnv, pBlob, aKey, nKey);
+  }
+
+  return rc;
+}
+
+static LsmPgno pageGetBtreeRef(Page *pPg, int iKey){
+  LsmPgno iRef;
+  u8 *aData;
+  int nData;
+  u8 *aCell;
+
+  aData = fsPageData(pPg, &nData);
+  aCell = pageGetCell(aData, nData, iKey);
+  assert( aCell[0]==0 );
+  aCell++;
+  aCell += lsmVarintGet64(aCell, &iRef);
+  lsmVarintGet64(aCell, &iRef);
+  assert( iRef>0 );
+  return iRef;
+}
+
+#define GETVARINT64(a, i) (((i)=((u8*)(a))[0])<=240?1:lsmVarintGet64((a), &(i)))
+#define GETVARINT32(a, i) (((i)=((u8*)(a))[0])<=240?1:lsmVarintGet32((a), &(i)))
+
+static int pageGetBtreeKey(
+  Segment *pSeg,                  /* Segment page pPg belongs to */
+  Page *pPg,
+  int iKey, 
+  LsmPgno *piPtr, 
+  int *piTopic, 
+  void **ppKey,
+  int *pnKey,
+  LsmBlob *pBlob
+){
+  u8 *aData;
+  int nData;
+  u8 *aCell;
+  int eType;
+
+  aData = fsPageData(pPg, &nData);
+  assert( SEGMENT_BTREE_FLAG & pageGetFlags(aData, nData) );
+  assert( iKey>=0 && iKey<pageGetNRec(aData, nData) );
+
+  aCell = pageGetCell(aData, nData, iKey);
+  eType = *aCell++;
+  aCell += GETVARINT64(aCell, *piPtr);
+
+  if( eType==0 ){
+    int rc;
+    LsmPgno iRef;               /* Page number of referenced page */
+    Page *pRef;
+    aCell += GETVARINT64(aCell, iRef);
+    rc = lsmFsDbPageGet(lsmPageFS(pPg), pSeg, iRef, &pRef);
+    if( rc!=LSM_OK ) return rc;
+    pageGetKeyCopy(lsmPageEnv(pPg), pSeg, pRef, 0, &eType, pBlob);
+    lsmFsPageRelease(pRef);
+    *ppKey = pBlob->pData;
+    *pnKey = pBlob->nData;
+  }else{
+    aCell += GETVARINT32(aCell, *pnKey);
+    *ppKey = aCell;
+  }
+  if( piTopic ) *piTopic = rtTopic(eType);
+
+  return LSM_OK;
+}
+
+static int btreeCursorLoadKey(BtreeCursor *pCsr){
+  int rc = LSM_OK;
+  if( pCsr->iPg<0 ){
+    pCsr->pKey = 0;
+    pCsr->nKey = 0;
+    pCsr->eType = 0;
+  }else{
+    LsmPgno dummy;
+    int iPg = pCsr->iPg;
+    int iCell = pCsr->aPg[iPg].iCell;
+    while( iCell<0 && (--iPg)>=0 ){
+      iCell = pCsr->aPg[iPg].iCell-1;
+    }
+    if( iPg<0 || iCell<0 ) return LSM_CORRUPT_BKPT;
+
+    rc = pageGetBtreeKey(
+        pCsr->pSeg,
+        pCsr->aPg[iPg].pPage, iCell,
+        &dummy, &pCsr->eType, &pCsr->pKey, &pCsr->nKey, &pCsr->blob
+    );
+    pCsr->eType |= LSM_SEPARATOR;
+  }
+
+  return rc;
+}
+
+static LsmPgno btreeCursorPtr(u8 *aData, int nData, int iCell){
+  int nCell;
+
+  nCell = pageGetNRec(aData, nData);
+  if( iCell>=nCell ){
+    return pageGetPtr(aData, nData);
+  }
+  return pageGetRecordPtr(aData, nData, iCell);
+}
+
+static int btreeCursorNext(BtreeCursor *pCsr){
+  int rc = LSM_OK;
+
+  BtreePg *pPg = &pCsr->aPg[pCsr->iPg];
+  int nCell; 
+  u8 *aData;
+  int nData;
+
+  assert( pCsr->iPg>=0 );
+  assert( pCsr->iPg==pCsr->nDepth-1 );
+
+  aData = fsPageData(pPg->pPage, &nData);
+  nCell = pageGetNRec(aData, nData);
+  assert( pPg->iCell<=nCell );
+  pPg->iCell++;
+  if( pPg->iCell==nCell ){
+    LsmPgno iLoad;
+
+    /* Up to parent. */
+    lsmFsPageRelease(pPg->pPage);
+    pPg->pPage = 0;
+    pCsr->iPg--;
+    while( pCsr->iPg>=0 ){
+      pPg = &pCsr->aPg[pCsr->iPg];
+      aData = fsPageData(pPg->pPage, &nData);
+      if( pPg->iCell<pageGetNRec(aData, nData) ) break;
+      lsmFsPageRelease(pPg->pPage);
+      pCsr->iPg--;
+    }
+
+    /* Read the key */
+    rc = btreeCursorLoadKey(pCsr);
+
+    /* Unless the cursor is at EOF, descend to cell -1 (yes, negative one) of 
+    ** the left-most most descendent. */
+    if( pCsr->iPg>=0 ){
+      pCsr->aPg[pCsr->iPg].iCell++;
+
+      iLoad = btreeCursorPtr(aData, nData, pPg->iCell);
+      do {
+        Page *pLoad;
+        pCsr->iPg++;
+        rc = lsmFsDbPageGet(pCsr->pFS, pCsr->pSeg, iLoad, &pLoad);
+        pCsr->aPg[pCsr->iPg].pPage = pLoad;
+        pCsr->aPg[pCsr->iPg].iCell = 0;
+        if( rc==LSM_OK ){
+          if( pCsr->iPg==(pCsr->nDepth-1) ) break;
+          aData = fsPageData(pLoad, &nData);
+          iLoad = btreeCursorPtr(aData, nData, 0);
+        }
+      }while( rc==LSM_OK && pCsr->iPg<(pCsr->nDepth-1) );
+      pCsr->aPg[pCsr->iPg].iCell = -1;
+    }
+
+  }else{
+    rc = btreeCursorLoadKey(pCsr);
+  }
+
+  if( rc==LSM_OK && pCsr->iPg>=0 ){
+    aData = fsPageData(pCsr->aPg[pCsr->iPg].pPage, &nData);
+    pCsr->iPtr = btreeCursorPtr(aData, nData, pCsr->aPg[pCsr->iPg].iCell+1);
+  }
+
+  return rc;
+}
+
+static void btreeCursorFree(BtreeCursor *pCsr){
+  if( pCsr ){
+    int i;
+    lsm_env *pEnv = lsmFsEnv(pCsr->pFS);
+    for(i=0; i<=pCsr->iPg; i++){
+      lsmFsPageRelease(pCsr->aPg[i].pPage);
+    }
+    sortedBlobFree(&pCsr->blob);
+    lsmFree(pEnv, pCsr->aPg);
+    lsmFree(pEnv, pCsr);
+  }
+}
+
+static int btreeCursorFirst(BtreeCursor *pCsr){
+  int rc;
+
+  Page *pPg = 0;
+  FileSystem *pFS = pCsr->pFS;
+  LsmPgno iPg = pCsr->pSeg->iRoot;
+
+  do {
+    rc = lsmFsDbPageGet(pFS, pCsr->pSeg, iPg, &pPg);
+    assert( (rc==LSM_OK)==(pPg!=0) );
+    if( rc==LSM_OK ){
+      u8 *aData;
+      int nData;
+      int flags;
+
+      aData = fsPageData(pPg, &nData);
+      flags = pageGetFlags(aData, nData);
+      if( (flags & SEGMENT_BTREE_FLAG)==0 ) break;
+
+      if( (pCsr->nDepth % 8)==0 ){
+        int nNew = pCsr->nDepth + 8;
+        pCsr->aPg = (BtreePg *)lsmReallocOrFreeRc(
+            lsmFsEnv(pFS), pCsr->aPg, sizeof(BtreePg) * nNew, &rc
+        );
+        if( rc==LSM_OK ){
+          memset(&pCsr->aPg[pCsr->nDepth], 0, sizeof(BtreePg) * 8);
+        }
+      }
+
+      if( rc==LSM_OK ){
+        assert( pCsr->aPg[pCsr->nDepth].iCell==0 );
+        pCsr->aPg[pCsr->nDepth].pPage = pPg;
+        pCsr->nDepth++;
+        iPg = pageGetRecordPtr(aData, nData, 0);
+      }
+    }
+  }while( rc==LSM_OK );
+  lsmFsPageRelease(pPg);
+  pCsr->iPg = pCsr->nDepth-1;
+
+  if( rc==LSM_OK && pCsr->nDepth ){
+    pCsr->aPg[pCsr->iPg].iCell = -1;
+    rc = btreeCursorNext(pCsr);
+  }
+
+  return rc;
+}
+
+static void btreeCursorPosition(BtreeCursor *pCsr, MergeInput *p){
+  if( pCsr->iPg>=0 ){
+    p->iPg = lsmFsPageNumber(pCsr->aPg[pCsr->iPg].pPage);
+    p->iCell = ((pCsr->aPg[pCsr->iPg].iCell + 1) << 8) + pCsr->nDepth;
+  }else{
+    p->iPg = 0;
+    p->iCell = 0;
+  }
+}
+
+static void btreeCursorSplitkey(BtreeCursor *pCsr, MergeInput *p){
+  int iCell = pCsr->aPg[pCsr->iPg].iCell;
+  if( iCell>=0 ){
+    p->iCell = iCell;
+    p->iPg = lsmFsPageNumber(pCsr->aPg[pCsr->iPg].pPage);
+  }else{
+    int i;
+    for(i=pCsr->iPg-1; i>=0; i--){
+      if( pCsr->aPg[i].iCell>0 ) break;
+    }
+    assert( i>=0 );
+    p->iCell = pCsr->aPg[i].iCell-1;
+    p->iPg = lsmFsPageNumber(pCsr->aPg[i].pPage);
+  }
+}
+
+static int sortedKeyCompare(
+  int (*xCmp)(void *, int, void *, int),
+  int iLhsTopic, void *pLhsKey, int nLhsKey,
+  int iRhsTopic, void *pRhsKey, int nRhsKey
+){
+  int res = iLhsTopic - iRhsTopic;
+  if( res==0 ){
+    res = xCmp(pLhsKey, nLhsKey, pRhsKey, nRhsKey);
+  }
+  return res;
+}
+
+static int btreeCursorRestore(
+  BtreeCursor *pCsr, 
+  int (*xCmp)(void *, int, void *, int),
+  MergeInput *p
+){
+  int rc = LSM_OK;
+
+  if( p->iPg ){
+    lsm_env *pEnv = lsmFsEnv(pCsr->pFS);
+    int iCell;                    /* Current cell number on leaf page */
+    LsmPgno iLeaf;                /* Page number of current leaf page */
+    int nDepth;                   /* Depth of b-tree structure */
+    Segment *pSeg = pCsr->pSeg;
+
+    /* Decode the MergeInput structure */
+    iLeaf = p->iPg;
+    nDepth = (p->iCell & 0x00FF);
+    iCell = (p->iCell >> 8) - 1;
+
+    /* Allocate the BtreeCursor.aPg[] array */
+    assert( pCsr->aPg==0 );
+    pCsr->aPg = (BtreePg *)lsmMallocZeroRc(pEnv, sizeof(BtreePg) * nDepth, &rc);
+
+    /* Populate the last entry of the aPg[] array */
+    if( rc==LSM_OK ){
+      Page **pp = &pCsr->aPg[nDepth-1].pPage;
+      pCsr->iPg = nDepth-1;
+      pCsr->nDepth = nDepth;
+      pCsr->aPg[pCsr->iPg].iCell = iCell;
+      rc = lsmFsDbPageGet(pCsr->pFS, pSeg, iLeaf, pp);
+    }
+
+    /* Populate any other aPg[] array entries */
+    if( rc==LSM_OK && nDepth>1 ){
+      LsmBlob blob = {0,0,0};
+      void *pSeek;
+      int nSeek;
+      int iTopicSeek;
+      int iPg = 0;
+      LsmPgno iLoad = pSeg->iRoot;
+      Page *pPg = pCsr->aPg[nDepth-1].pPage;
+ 
+      if( pageObjGetNRec(pPg)==0 ){
+        /* This can happen when pPg is the right-most leaf in the b-tree.
+        ** In this case, set the iTopicSeek/pSeek/nSeek key to a value
+        ** greater than any real key.  */
+        assert( iCell==-1 );
+        iTopicSeek = 1000;
+        pSeek = 0;
+        nSeek = 0;
+      }else{
+        LsmPgno dummy;
+        rc = pageGetBtreeKey(pSeg, pPg,
+            0, &dummy, &iTopicSeek, &pSeek, &nSeek, &pCsr->blob
+        );
+      }
+
+      do {
+        Page *pPg2;
+        rc = lsmFsDbPageGet(pCsr->pFS, pSeg, iLoad, &pPg2);
+        assert( rc==LSM_OK || pPg2==0 );
+        if( rc==LSM_OK ){
+          u8 *aData;                  /* Buffer containing page data */
+          int nData;                  /* Size of aData[] in bytes */
+          int iMin;
+          int iMax;
+          int iCell2;
+
+          aData = fsPageData(pPg2, &nData);
+          assert( (pageGetFlags(aData, nData) & SEGMENT_BTREE_FLAG) );
+
+          iLoad = pageGetPtr(aData, nData);
+          iCell2 = pageGetNRec(aData, nData); 
+          iMax = iCell2-1;
+          iMin = 0;
+
+          while( iMax>=iMin ){
+            int iTry = (iMin+iMax)/2;
+            void *pKey; int nKey;         /* Key for cell iTry */
+            int iTopic;                   /* Topic for key pKeyT/nKeyT */
+            LsmPgno iPtr;                 /* Pointer for cell iTry */
+            int res;                      /* (pSeek - pKeyT) */
+
+            rc = pageGetBtreeKey(
+                pSeg, pPg2, iTry, &iPtr, &iTopic, &pKey, &nKey, &blob
+            );
+            if( rc!=LSM_OK ) break;
+
+            res = sortedKeyCompare(
+                xCmp, iTopicSeek, pSeek, nSeek, iTopic, pKey, nKey
+            );
+            assert( res!=0 );
+
+            if( res<0 ){
+              iLoad = iPtr;
+              iCell2 = iTry;
+              iMax = iTry-1;
+            }else{
+              iMin = iTry+1;
+            }
+          }
+
+          pCsr->aPg[iPg].pPage = pPg2;
+          pCsr->aPg[iPg].iCell = iCell2;
+          iPg++;
+          assert( iPg!=nDepth-1 
+               || lsmFsRedirectPage(pCsr->pFS, pSeg->pRedirect, iLoad)==iLeaf
+          );
+        }
+      }while( rc==LSM_OK && iPg<(nDepth-1) );
+      sortedBlobFree(&blob);
+    }
+
+    /* Load the current key and pointer */
+    if( rc==LSM_OK ){
+      BtreePg *pBtreePg;
+      u8 *aData;
+      int nData;
+
+      pBtreePg = &pCsr->aPg[pCsr->iPg];
+      aData = fsPageData(pBtreePg->pPage, &nData);
+      pCsr->iPtr = btreeCursorPtr(aData, nData, pBtreePg->iCell+1);
+      if( pBtreePg->iCell<0 ){
+        LsmPgno dummy;
+        int i;
+        for(i=pCsr->iPg-1; i>=0; i--){
+          if( pCsr->aPg[i].iCell>0 ) break;
+        }
+        assert( i>=0 );
+        rc = pageGetBtreeKey(pSeg,
+            pCsr->aPg[i].pPage, pCsr->aPg[i].iCell-1,
+            &dummy, &pCsr->eType, &pCsr->pKey, &pCsr->nKey, &pCsr->blob
+        );
+        pCsr->eType |= LSM_SEPARATOR;
+
+      }else{
+        rc = btreeCursorLoadKey(pCsr);
+      }
+    }
+  }
+  return rc;
+}
+
+static int btreeCursorNew(
+  lsm_db *pDb,
+  Segment *pSeg,
+  BtreeCursor **ppCsr
+){
+  int rc = LSM_OK;
+  BtreeCursor *pCsr;
+  
+  assert( pSeg->iRoot );
+  pCsr = lsmMallocZeroRc(pDb->pEnv, sizeof(BtreeCursor), &rc);
+  if( pCsr ){
+    pCsr->pFS = pDb->pFS;
+    pCsr->pSeg = pSeg;
+    pCsr->iPg = -1;
+  }
+
+  *ppCsr = pCsr;
+  return rc;
+}
+
+static void segmentPtrSetPage(SegmentPtr *pPtr, Page *pNext){
+  lsmFsPageRelease(pPtr->pPg);
+  if( pNext ){
+    int nData;
+    u8 *aData = fsPageData(pNext, &nData);
+    pPtr->nCell = pageGetNRec(aData, nData);
+    pPtr->flags = (u16)pageGetFlags(aData, nData);
+    pPtr->iPtr = pageGetPtr(aData, nData);
+  }
+  pPtr->pPg = pNext;
+}
+
+/*
+** Load a new page into the SegmentPtr object pPtr.
+*/
+static int segmentPtrLoadPage(
+  FileSystem *pFS,
+  SegmentPtr *pPtr,              /* Load page into this SegmentPtr object */
+  LsmPgno iNew                       /* Page number of new page */
+){
+  Page *pPg = 0;                 /* The new page */
+  int rc;                        /* Return Code */
+
+  rc = lsmFsDbPageGet(pFS, pPtr->pSeg, iNew, &pPg);
+  assert( rc==LSM_OK || pPg==0 );
+  segmentPtrSetPage(pPtr, pPg);
+
+  return rc;
+}
+
+static int segmentPtrReadData(
+  SegmentPtr *pPtr,
+  int iOff,
+  int nByte,
+  void **ppData,
+  LsmBlob *pBlob
+){
+  return sortedReadData(pPtr->pSeg, pPtr->pPg, iOff, nByte, ppData, pBlob);
+}
+
+static int segmentPtrNextPage(
+  SegmentPtr *pPtr,              /* Load page into this SegmentPtr object */
+  int eDir                       /* +1 for next(), -1 for prev() */
+){
+  Page *pNext;                   /* New page to load */
+  int rc;                        /* Return code */
+
+  assert( eDir==1 || eDir==-1 );
+  assert( pPtr->pPg );
+  assert( pPtr->pSeg || eDir>0 );
+
+  rc = lsmFsDbPageNext(pPtr->pSeg, pPtr->pPg, eDir, &pNext);
+  assert( rc==LSM_OK || pNext==0 );
+  segmentPtrSetPage(pPtr, pNext);
+  return rc;
+}
+
+static int segmentPtrLoadCell(
+  SegmentPtr *pPtr,              /* Load page into this SegmentPtr object */
+  int iNew                       /* Cell number of new cell */
+){
+  int rc = LSM_OK;
+  if( pPtr->pPg ){
+    u8 *aData;                    /* Pointer to page data buffer */
+    int iOff;                     /* Offset in aData[] to read from */
+    int nPgsz;                    /* Size of page (aData[]) in bytes */
+
+    assert( iNew<pPtr->nCell );
+    pPtr->iCell = iNew;
+    aData = fsPageData(pPtr->pPg, &nPgsz);
+    iOff = lsmGetU16(&aData[SEGMENT_CELLPTR_OFFSET(nPgsz, pPtr->iCell)]);
+    pPtr->eType = aData[iOff];
+    iOff++;
+    iOff += GETVARINT64(&aData[iOff], pPtr->iPgPtr);
+    iOff += GETVARINT32(&aData[iOff], pPtr->nKey);
+    if( rtIsWrite(pPtr->eType) ){
+      iOff += GETVARINT32(&aData[iOff], pPtr->nVal);
+    }
+    assert( pPtr->nKey>=0 );
+
+    rc = segmentPtrReadData(
+        pPtr, iOff, pPtr->nKey, &pPtr->pKey, &pPtr->blob1
+    );
+    if( rc==LSM_OK && rtIsWrite(pPtr->eType) ){
+      rc = segmentPtrReadData(
+          pPtr, iOff+pPtr->nKey, pPtr->nVal, &pPtr->pVal, &pPtr->blob2
+      );
+    }else{
+      pPtr->nVal = 0;
+      pPtr->pVal = 0;
+    }
+  }
+
+  return rc;
+}
+
+
+static Segment *sortedSplitkeySegment(Level *pLevel){
+  Merge *pMerge = pLevel->pMerge;
+  MergeInput *p = &pMerge->splitkey;
+  Segment *pSeg;
+  int i;
+
+  for(i=0; i<pMerge->nInput; i++){
+    if( p->iPg==pMerge->aInput[i].iPg ) break;
+  }
+  if( pMerge->nInput==(pLevel->nRight+1) && i>=(pMerge->nInput-1) ){
+    pSeg = &pLevel->pNext->lhs;
+  }else{
+    pSeg = &pLevel->aRhs[i];
+  }
+
+  return pSeg;
+}
+
+static void sortedSplitkey(lsm_db *pDb, Level *pLevel, int *pRc){
+  Segment *pSeg;
+  Page *pPg = 0;
+  lsm_env *pEnv = pDb->pEnv;      /* Environment handle */
+  int rc = *pRc;
+  Merge *pMerge = pLevel->pMerge;
+
+  pSeg = sortedSplitkeySegment(pLevel);
+  if( rc==LSM_OK ){
+    rc = lsmFsDbPageGet(pDb->pFS, pSeg, pMerge->splitkey.iPg, &pPg);
+  }
+  if( rc==LSM_OK ){
+    int iTopic;
+    LsmBlob blob = {0, 0, 0, 0};
+    u8 *aData;
+    int nData;
+  
+    aData = lsmFsPageData(pPg, &nData);
+    if( pageGetFlags(aData, nData) & SEGMENT_BTREE_FLAG ){
+      void *pKey;
+      int nKey;
+      LsmPgno dummy;
+      rc = pageGetBtreeKey(pSeg,
+          pPg, pMerge->splitkey.iCell, &dummy, &iTopic, &pKey, &nKey, &blob
+      );
+      if( rc==LSM_OK && blob.pData!=pKey ){
+        rc = sortedBlobSet(pEnv, &blob, pKey, nKey);
+      }
+    }else{
+      rc = pageGetKeyCopy(
+          pEnv, pSeg, pPg, pMerge->splitkey.iCell, &iTopic, &blob
+      );
+    }
+
+    pLevel->iSplitTopic = iTopic;
+    pLevel->pSplitKey = blob.pData;
+    pLevel->nSplitKey = blob.nData;
+    lsmFsPageRelease(pPg);
+  }
+
+  *pRc = rc;
+}
+
+/*
+** Reset a segment cursor. Also free its buffers if they are nThreshold
+** bytes or larger in size.
+*/
+static void segmentPtrReset(SegmentPtr *pPtr, int nThreshold){
+  lsmFsPageRelease(pPtr->pPg);
+  pPtr->pPg = 0;
+  pPtr->nCell = 0;
+  pPtr->pKey = 0;
+  pPtr->nKey = 0;
+  pPtr->pVal = 0;
+  pPtr->nVal = 0;
+  pPtr->eType = 0;
+  pPtr->iCell = 0;
+  if( pPtr->blob1.nAlloc>=nThreshold ) sortedBlobFree(&pPtr->blob1);
+  if( pPtr->blob2.nAlloc>=nThreshold ) sortedBlobFree(&pPtr->blob2);
+}
+
+static int segmentPtrIgnoreSeparators(MultiCursor *pCsr, SegmentPtr *pPtr){
+  return (pCsr->flags & CURSOR_READ_SEPARATORS)==0
+      || (pPtr!=&pCsr->aPtr[pCsr->nPtr-1]);
+}
+
+static int segmentPtrAdvance(
+  MultiCursor *pCsr, 
+  SegmentPtr *pPtr,
+  int bReverse
+){
+  int eDir = (bReverse ? -1 : 1);
+  Level *pLvl = pPtr->pLevel;
+  do {
+    int rc;
+    int iCell;                    /* Number of new cell in page */
+    int svFlags = 0;              /* SegmentPtr.eType before advance */
+
+    iCell = pPtr->iCell + eDir;
+    assert( pPtr->pPg );
+    assert( iCell<=pPtr->nCell && iCell>=-1 );
+
+    if( bReverse && pPtr->pSeg!=&pPtr->pLevel->lhs ){
+      svFlags = pPtr->eType;
+      assert( svFlags );
+    }
+
+    if( iCell>=pPtr->nCell || iCell<0 ){
+      do {
+        rc = segmentPtrNextPage(pPtr, eDir); 
+      }while( rc==LSM_OK 
+           && pPtr->pPg 
+           && (pPtr->nCell==0 || (pPtr->flags & SEGMENT_BTREE_FLAG) ) 
+      );
+      if( rc!=LSM_OK ) return rc;
+      iCell = bReverse ? (pPtr->nCell-1) : 0;
+    }
+    rc = segmentPtrLoadCell(pPtr, iCell);
+    if( rc!=LSM_OK ) return rc;
+
+    if( svFlags && pPtr->pPg ){
+      int res = sortedKeyCompare(pCsr->pDb->xCmp,
+          rtTopic(pPtr->eType), pPtr->pKey, pPtr->nKey,
+          pLvl->iSplitTopic, pLvl->pSplitKey, pLvl->nSplitKey
+      );
+      if( res<0 ) segmentPtrReset(pPtr, LSM_SEGMENTPTR_FREE_THRESHOLD);
+    }
+
+    if( pPtr->pPg==0 && (svFlags & LSM_END_DELETE) ){
+      Segment *pSeg = pPtr->pSeg;
+      rc = lsmFsDbPageGet(pCsr->pDb->pFS, pSeg, pSeg->iFirst, &pPtr->pPg);
+      if( rc!=LSM_OK ) return rc;
+      pPtr->eType = LSM_START_DELETE | LSM_POINT_DELETE;
+      pPtr->eType |= (pLvl->iSplitTopic ? LSM_SYSTEMKEY : 0);
+      pPtr->pKey = pLvl->pSplitKey;
+      pPtr->nKey = pLvl->nSplitKey;
+    }
+
+  }while( pCsr 
+       && pPtr->pPg 
+       && segmentPtrIgnoreSeparators(pCsr, pPtr)
+       && rtIsSeparator(pPtr->eType)
+  );
+
+  return LSM_OK;
+}
+
+static void segmentPtrEndPage(
+  FileSystem *pFS, 
+  SegmentPtr *pPtr, 
+  int bLast, 
+  int *pRc
+){
+  if( *pRc==LSM_OK ){
+    Segment *pSeg = pPtr->pSeg;
+    Page *pNew = 0;
+    if( bLast ){
+      *pRc = lsmFsDbPageLast(pFS, pSeg, &pNew);
+    }else{
+      *pRc = lsmFsDbPageGet(pFS, pSeg, pSeg->iFirst, &pNew);
+    }
+    segmentPtrSetPage(pPtr, pNew);
+  }
+}
+
+
+/*
+** Try to move the segment pointer passed as the second argument so that it
+** points at either the first (bLast==0) or last (bLast==1) cell in the valid
+** region of the segment defined by pPtr->iFirst and pPtr->iLast.
+**
+** Return LSM_OK if successful or an lsm error code if something goes
+** wrong (IO error, OOM etc.).
+*/
+static int segmentPtrEnd(MultiCursor *pCsr, SegmentPtr *pPtr, int bLast){
+  Level *pLvl = pPtr->pLevel;
+  int rc = LSM_OK;
+  FileSystem *pFS = pCsr->pDb->pFS;
+  int bIgnore;
+
+  segmentPtrEndPage(pFS, pPtr, bLast, &rc);
+  while( rc==LSM_OK && pPtr->pPg 
+      && (pPtr->nCell==0 || (pPtr->flags & SEGMENT_BTREE_FLAG))
+  ){
+    rc = segmentPtrNextPage(pPtr, (bLast ? -1 : 1));
+  }
+
+  if( rc==LSM_OK && pPtr->pPg ){
+    rc = segmentPtrLoadCell(pPtr, bLast ? (pPtr->nCell-1) : 0);
+    if( rc==LSM_OK && bLast && pPtr->pSeg!=&pLvl->lhs ){
+      int res = sortedKeyCompare(pCsr->pDb->xCmp,
+          rtTopic(pPtr->eType), pPtr->pKey, pPtr->nKey,
+          pLvl->iSplitTopic, pLvl->pSplitKey, pLvl->nSplitKey
+      );
+      if( res<0 ) segmentPtrReset(pPtr, LSM_SEGMENTPTR_FREE_THRESHOLD);
+    }
+  }
+  
+  bIgnore = segmentPtrIgnoreSeparators(pCsr, pPtr);
+  if( rc==LSM_OK && pPtr->pPg && bIgnore && rtIsSeparator(pPtr->eType) ){
+    rc = segmentPtrAdvance(pCsr, pPtr, bLast);
+  }
+
+#if 0
+  if( bLast && rc==LSM_OK && pPtr->pPg
+   && pPtr->pSeg==&pLvl->lhs 
+   && pLvl->nRight && (pPtr->eType & LSM_START_DELETE)
+  ){
+    pPtr->iCell++;
+    pPtr->eType = LSM_END_DELETE | (pLvl->iSplitTopic);
+    pPtr->pKey = pLvl->pSplitKey;
+    pPtr->nKey = pLvl->nSplitKey;
+    pPtr->pVal = 0;
+    pPtr->nVal = 0;
+  }
+#endif
+
+  return rc;
+}
+
+static void segmentPtrKey(SegmentPtr *pPtr, void **ppKey, int *pnKey){
+  assert( pPtr->pPg );
+  *ppKey = pPtr->pKey;
+  *pnKey = pPtr->nKey;
+}
+
+#if 0 /* NOT USED */
+static char *keyToString(lsm_env *pEnv, void *pKey, int nKey){
+  int i;
+  u8 *aKey = (u8 *)pKey;
+  char *zRet = (char *)lsmMalloc(pEnv, nKey+1);
+
+  for(i=0; i<nKey; i++){
+    zRet[i] = (char)(isalnum(aKey[i]) ? aKey[i] : '.');
+  }
+  zRet[nKey] = '\0';
+  return zRet;
+}
+#endif
+
+#if 0 /* NOT USED */
+/*
+** Check that the page that pPtr currently has loaded is the correct page
+** to search for key (pKey/nKey). If it is, return 1. Otherwise, an assert
+** fails and this function does not return.
+*/
+static int assertKeyLocation(
+  MultiCursor *pCsr, 
+  SegmentPtr *pPtr, 
+  void *pKey, int nKey
+){
+  lsm_env *pEnv = lsmFsEnv(pCsr->pDb->pFS);
+  LsmBlob blob = {0, 0, 0};
+  int eDir;
+  int iTopic = 0;                 /* TODO: Fix me */
+
+  for(eDir=-1; eDir<=1; eDir+=2){
+    Page *pTest = pPtr->pPg;
+
+    lsmFsPageRef(pTest);
+    while( pTest ){
+      Segment *pSeg = pPtr->pSeg;
+      Page *pNext;
+
+      int rc = lsmFsDbPageNext(pSeg, pTest, eDir, &pNext);
+      lsmFsPageRelease(pTest);
+      if( rc ) return 1;
+      pTest = pNext;
+
+      if( pTest ){
+        int nData;
+        u8 *aData = fsPageData(pTest, &nData);
+        int nCell = pageGetNRec(aData, nData);
+        int flags = pageGetFlags(aData, nData);
+        if( nCell && 0==(flags&SEGMENT_BTREE_FLAG) ){
+          int nPgKey;
+          int iPgTopic;
+          u8 *pPgKey;
+          int res;
+          int iCell;
+
+          iCell = ((eDir < 0) ? (nCell-1) : 0);
+          pPgKey = pageGetKey(pSeg, pTest, iCell, &iPgTopic, &nPgKey, &blob);
+          res = iTopic - iPgTopic;
+          if( res==0 ) res = pCsr->pDb->xCmp(pKey, nKey, pPgKey, nPgKey);
+          if( (eDir==1 && res>0) || (eDir==-1 && res<0) ){
+            /* Taking this branch means something has gone wrong. */
+            char *zMsg = lsmMallocPrintf(pEnv, "Key \"%s\" is not on page %d", 
+                keyToString(pEnv, pKey, nKey), lsmFsPageNumber(pPtr->pPg)
+            );
+            fprintf(stderr, "%s\n", zMsg);
+            assert( !"assertKeyLocation() failed" );
+          }
+          lsmFsPageRelease(pTest);
+          pTest = 0;
+        }
+      }
+    }
+  }
+
+  sortedBlobFree(&blob);
+  return 1;
+}
+#endif
+
+#ifndef NDEBUG
+static int assertSeekResult(
+  MultiCursor *pCsr,
+  SegmentPtr *pPtr,
+  int iTopic,
+  void *pKey,
+  int nKey,
+  int eSeek
+){
+  if( pPtr->pPg ){
+    int res;
+    res = sortedKeyCompare(pCsr->pDb->xCmp, iTopic, pKey, nKey,
+        rtTopic(pPtr->eType), pPtr->pKey, pPtr->nKey
+    );
+
+    if( eSeek==LSM_SEEK_EQ ) return (res==0);
+    if( eSeek==LSM_SEEK_LE ) return (res>=0);
+    if( eSeek==LSM_SEEK_GE ) return (res<=0);
+  }
+
+  return 1;
+}
+#endif
+
+static int segmentPtrSearchOversized(
+  MultiCursor *pCsr,              /* Cursor context */
+  SegmentPtr *pPtr,               /* Pointer to seek */
+  int iTopic,                     /* Topic of key to search for */
+  void *pKey, int nKey            /* Key to seek to */
+){
+  int (*xCmp)(void *, int, void *, int) = pCsr->pDb->xCmp;
+  int rc = LSM_OK;
+
+  /* If the OVERSIZED flag is set, then there is no pointer in the
+  ** upper level to the next page in the segment that contains at least
+  ** one key. So compare the largest key on the current page with the
+  ** key being sought (pKey/nKey). If (pKey/nKey) is larger, advance
+  ** to the next page in the segment that contains at least one key. 
+  */
+  while( rc==LSM_OK && (pPtr->flags & PGFTR_SKIP_NEXT_FLAG) ){
+    u8 *pLastKey;
+    int nLastKey;
+    int iLastTopic;
+    int res;                      /* Result of comparison */
+    Page *pNext;
+
+    /* Load the last key on the current page. */
+    pLastKey = pageGetKey(pPtr->pSeg,
+        pPtr->pPg, pPtr->nCell-1, &iLastTopic, &nLastKey, &pPtr->blob1
+    );
+
+    /* If the loaded key is >= than (pKey/nKey), break out of the loop.
+    ** If (pKey/nKey) is present in this array, it must be on the current 
+    ** page.  */
+    res = sortedKeyCompare(
+        xCmp, iLastTopic, pLastKey, nLastKey, iTopic, pKey, nKey
+    );
+    if( res>=0 ) break;
+
+    /* Advance to the next page that contains at least one key. */
+    pNext = pPtr->pPg;
+    lsmFsPageRef(pNext);
+    while( 1 ){
+      Page *pLoad;
+      u8 *aData; int nData;
+
+      rc = lsmFsDbPageNext(pPtr->pSeg, pNext, 1, &pLoad);
+      lsmFsPageRelease(pNext);
+      pNext = pLoad;
+      if( pNext==0 ) break;
+
+      assert( rc==LSM_OK );
+      aData = lsmFsPageData(pNext, &nData);
+      if( (pageGetFlags(aData, nData) & SEGMENT_BTREE_FLAG)==0
+       && pageGetNRec(aData, nData)>0
+      ){
+        break;
+      }
+    }
+    if( pNext==0 ) break;
+    segmentPtrSetPage(pPtr, pNext);
+
+    /* This should probably be an LSM_CORRUPT error. */
+    assert( rc!=LSM_OK || (pPtr->flags & PGFTR_SKIP_THIS_FLAG) );
+  }
+
+  return rc;
+}
+
+static int ptrFwdPointer(
+  Page *pPage,
+  int iCell,
+  Segment *pSeg,
+  LsmPgno *piPtr,
+  int *pbFound
+){
+  Page *pPg = pPage;
+  int iFirst = iCell;
+  int rc = LSM_OK;
+
+  do {
+    Page *pNext = 0;
+    u8 *aData;
+    int nData;
+
+    aData = lsmFsPageData(pPg, &nData);
+    if( (pageGetFlags(aData, nData) & SEGMENT_BTREE_FLAG)==0 ){
+      int i;
+      int nCell = pageGetNRec(aData, nData);
+      for(i=iFirst; i<nCell; i++){
+        u8 eType = *pageGetCell(aData, nData, i);
+        if( (eType & LSM_START_DELETE)==0 ){
+          *pbFound = 1;
+          *piPtr = pageGetRecordPtr(aData, nData, i) + pageGetPtr(aData, nData);
+          lsmFsPageRelease(pPg);
+          return LSM_OK;
+        }
+      }
+    }
+
+    rc = lsmFsDbPageNext(pSeg, pPg, 1, &pNext);
+    lsmFsPageRelease(pPg);
+    pPg = pNext;
+    iFirst = 0;
+  }while( pPg && rc==LSM_OK );
+  lsmFsPageRelease(pPg);
+
+  *pbFound = 0;
+  return rc;
+}
+
+static int sortedRhsFirst(MultiCursor *pCsr, Level *pLvl, SegmentPtr *pPtr){
+  int rc;
+  rc = segmentPtrEnd(pCsr, pPtr, 0);
+  while( pPtr->pPg && rc==LSM_OK ){
+    int res = sortedKeyCompare(pCsr->pDb->xCmp,
+        pLvl->iSplitTopic, pLvl->pSplitKey, pLvl->nSplitKey,
+        rtTopic(pPtr->eType), pPtr->pKey, pPtr->nKey
+    );
+    if( res<=0 ) break;
+    rc = segmentPtrAdvance(pCsr, pPtr, 0);
+  }
+  return rc;
+}
+
+
+/*
+** This function is called as part of a SEEK_GE op on a multi-cursor if the 
+** FC pointer read from segment *pPtr comes from an entry with the 
+** LSM_START_DELETE flag set. In this case the pointer value cannot be 
+** trusted. Instead, the pointer that should be followed is that associated
+** with the next entry in *pPtr that does not have LSM_START_DELETE set.
+**
+** Why the pointers can't be trusted:
+**
+**
+**
+** TODO: This is a stop-gap solution:
+** 
+**   At the moment, this function is called from within segmentPtrSeek(), 
+**   as part of the initial lsmMCursorSeek() call. However, consider a 
+**   database where the following has occurred:
+**
+**      1. A range delete removes keys 1..9999 using a range delete.
+**      2. Keys 1 through 9999 are reinserted.
+**      3. The levels containing the ops in 1. and 2. above are merged. Call
+**         this level N. Level N contains FC pointers to level N+1.
+**
+**   Then, if the user attempts to query for (key>=2 LIMIT 10), the 
+**   lsmMCursorSeek() call will iterate through 9998 entries searching for a 
+**   pointer down to the level N+1 that is never actually used. It would be
+**   much better if the multi-cursor could do this lazily - only seek to the
+**   level (N+1) page after the user has moved the cursor on level N passed
+**   the big range-delete.
+*/
+static int segmentPtrFwdPointer(
+  MultiCursor *pCsr,              /* Multi-cursor pPtr belongs to */
+  SegmentPtr *pPtr,               /* Segment-pointer to extract FC ptr from */
+  LsmPgno *piPtr                  /* OUT: FC pointer value */
+){
+  Level *pLvl = pPtr->pLevel;
+  Level *pNext = pLvl->pNext;
+  Page *pPg = pPtr->pPg;
+  int rc;
+  int bFound;
+  LsmPgno iOut = 0;
+
+  if( pPtr->pSeg==&pLvl->lhs || pPtr->pSeg==&pLvl->aRhs[pLvl->nRight-1] ){
+    if( pNext==0 
+        || (pNext->nRight==0 && pNext->lhs.iRoot)
+        || (pNext->nRight!=0 && pNext->aRhs[0].iRoot)
+      ){
+      /* Do nothing. The pointer will not be used anyway. */
+      return LSM_OK;
+    }
+  }else{
+    if( pPtr[1].pSeg->iRoot ){
+      return LSM_OK;
+    }
+  }
+
+  /* Search for a pointer within the current segment. */
+  lsmFsPageRef(pPg);
+  rc = ptrFwdPointer(pPg, pPtr->iCell, pPtr->pSeg, &iOut, &bFound);
+
+  if( rc==LSM_OK && bFound==0 ){
+    /* This case happens when pPtr points to the left-hand-side of a segment
+    ** currently undergoing an incremental merge. In this case, jump to the
+    ** oldest segment in the right-hand-side of the same level and continue
+    ** searching. But - do not consider any keys smaller than the levels
+    ** split-key. */
+    SegmentPtr ptr;
+
+    if( pPtr->pLevel->nRight==0 || pPtr->pSeg!=&pPtr->pLevel->lhs ){
+      return LSM_CORRUPT_BKPT;
+    }
+
+    memset(&ptr, 0, sizeof(SegmentPtr));
+    ptr.pLevel = pPtr->pLevel;
+    ptr.pSeg = &ptr.pLevel->aRhs[ptr.pLevel->nRight-1];
+    rc = sortedRhsFirst(pCsr, ptr.pLevel, &ptr);
+    if( rc==LSM_OK ){
+      rc = ptrFwdPointer(ptr.pPg, ptr.iCell, ptr.pSeg, &iOut, &bFound);
+      ptr.pPg = 0;
+    }
+    segmentPtrReset(&ptr, 0);
+  }
+
+  *piPtr = iOut;
+  return rc;
+}
+
+static int segmentPtrSeek(
+  MultiCursor *pCsr,              /* Cursor context */
+  SegmentPtr *pPtr,               /* Pointer to seek */
+  int iTopic,                     /* Key topic to seek to */
+  void *pKey, int nKey,           /* Key to seek to */
+  int eSeek,                      /* Search bias - see above */
+  LsmPgno *piPtr,                 /* OUT: FC pointer */
+  int *pbStop
+){
+  int (*xCmp)(void *, int, void *, int) = pCsr->pDb->xCmp;
+  int res = 0;                        /* Result of comparison operation */
+  int rc = LSM_OK;
+  int iMin;
+  int iMax;
+  LsmPgno iPtrOut = 0;
+
+  /* If the current page contains an oversized entry, then there are no
+  ** pointers to one or more of the subsequent pages in the sorted run.
+  ** The following call ensures that the segment-ptr points to the correct 
+  ** page in this case.  */
+  rc = segmentPtrSearchOversized(pCsr, pPtr, iTopic, pKey, nKey);
+  iPtrOut = pPtr->iPtr;
+
+  /* Assert that this page is the right page of this segment for the key
+  ** that we are searching for. Do this by loading page (iPg-1) and testing
+  ** that pKey/nKey is greater than all keys on that page, and then by 
+  ** loading (iPg+1) and testing that pKey/nKey is smaller than all
+  ** the keys it houses.  
+  **
+  ** TODO: With range-deletes in the tree, the test described above may fail.
+  */
+#if 0
+  assert( assertKeyLocation(pCsr, pPtr, pKey, nKey) );
+#endif
+
+  assert( pPtr->nCell>0 
+       || pPtr->pSeg->nSize==1 
+       || lsmFsDbPageIsLast(pPtr->pSeg, pPtr->pPg)
+  );
+  if( pPtr->nCell==0 ){
+    segmentPtrReset(pPtr, LSM_SEGMENTPTR_FREE_THRESHOLD);
+  }else{
+    iMin = 0;
+    iMax = pPtr->nCell-1;
+
+    while( 1 ){
+      int iTry = (iMin+iMax)/2;
+      void *pKeyT; int nKeyT;       /* Key for cell iTry */
+      int iTopicT;
+
+      assert( iTry<iMax || iMin==iMax );
+
+      rc = segmentPtrLoadCell(pPtr, iTry);
+      if( rc!=LSM_OK ) break;
+
+      segmentPtrKey(pPtr, &pKeyT, &nKeyT);
+      iTopicT = rtTopic(pPtr->eType);
+
+      res = sortedKeyCompare(xCmp, iTopicT, pKeyT, nKeyT, iTopic, pKey, nKey);
+      if( res<=0 ){
+        iPtrOut = pPtr->iPtr + pPtr->iPgPtr;
+      }
+
+      if( res==0 || iMin==iMax ){
+        break;
+      }else if( res>0 ){
+        iMax = LSM_MAX(iTry-1, iMin);
+      }else{
+        iMin = iTry+1;
+      }
+    }
+
+    if( rc==LSM_OK ){
+      assert( res==0 || (iMin==iMax && iMin>=0 && iMin<pPtr->nCell) );
+      if( res ){
+        rc = segmentPtrLoadCell(pPtr, iMin);
+      }
+      assert( rc!=LSM_OK || res>0 || iPtrOut==(pPtr->iPtr + pPtr->iPgPtr) );
+
+      if( rc==LSM_OK ){
+        switch( eSeek ){
+          case LSM_SEEK_EQ: {
+            int eType = pPtr->eType;
+            if( (res<0 && (eType & LSM_START_DELETE))
+             || (res>0 && (eType & LSM_END_DELETE))
+             || (res==0 && (eType & LSM_POINT_DELETE))
+            ){
+              *pbStop = 1;
+            }else if( res==0 && (eType & LSM_INSERT) ){
+              lsm_env *pEnv = pCsr->pDb->pEnv;
+              *pbStop = 1;
+              pCsr->eType = pPtr->eType;
+              rc = sortedBlobSet(pEnv, &pCsr->key, pPtr->pKey, pPtr->nKey);
+              if( rc==LSM_OK ){
+                rc = sortedBlobSet(pEnv, &pCsr->val, pPtr->pVal, pPtr->nVal);
+              }
+              pCsr->flags |= CURSOR_SEEK_EQ;
+            }
+            segmentPtrReset(pPtr, LSM_SEGMENTPTR_FREE_THRESHOLD);
+            break;
+          }
+          case LSM_SEEK_LE:
+            if( res>0 ) rc = segmentPtrAdvance(pCsr, pPtr, 1);
+            break;
+          case LSM_SEEK_GE: {
+            /* Figure out if we need to 'skip' the pointer forward or not */
+            if( (res<=0 && (pPtr->eType & LSM_START_DELETE)) 
+             || (res>0  && (pPtr->eType & LSM_END_DELETE)) 
+            ){
+              rc = segmentPtrFwdPointer(pCsr, pPtr, &iPtrOut);
+            }
+            if( res<0 && rc==LSM_OK ){
+              rc = segmentPtrAdvance(pCsr, pPtr, 0);
+            }
+            break;
+          }
+        }
+      }
+    }
+
+    /* If the cursor seek has found a separator key, and this cursor is
+    ** supposed to ignore separators keys, advance to the next entry.  */
+    if( rc==LSM_OK && pPtr->pPg
+     && segmentPtrIgnoreSeparators(pCsr, pPtr) 
+     && rtIsSeparator(pPtr->eType)
+    ){
+      assert( eSeek!=LSM_SEEK_EQ );
+      rc = segmentPtrAdvance(pCsr, pPtr, eSeek==LSM_SEEK_LE);
+    }
+  }
+
+  assert( rc!=LSM_OK || assertSeekResult(pCsr,pPtr,iTopic,pKey,nKey,eSeek) );
+  *piPtr = iPtrOut;
+  return rc;
+}
+
+static int seekInBtree(
+  MultiCursor *pCsr,              /* Multi-cursor object */
+  Segment *pSeg,                  /* Seek within this segment */
+  int iTopic,
+  void *pKey, int nKey,           /* Key to seek to */
+  LsmPgno *aPg,                   /* OUT: Page numbers */
+  Page **ppPg                     /* OUT: Leaf (sorted-run) page reference */
+){
+  int i = 0;
+  int rc;
+  LsmPgno iPg;
+  Page *pPg = 0;
+  LsmBlob blob = {0, 0, 0};
+
+  iPg = pSeg->iRoot;
+  do {
+    LsmPgno *piFirst = 0;
+    if( aPg ){
+      aPg[i++] = iPg;
+      piFirst = &aPg[i];
+    }
+
+    rc = lsmFsDbPageGet(pCsr->pDb->pFS, pSeg, iPg, &pPg);
+    assert( rc==LSM_OK || pPg==0 );
+    if( rc==LSM_OK ){
+      u8 *aData;                  /* Buffer containing page data */
+      int nData;                  /* Size of aData[] in bytes */
+      int iMin;
+      int iMax;
+      int nRec;
+      int flags;
+
+      aData = fsPageData(pPg, &nData);
+      flags = pageGetFlags(aData, nData);
+      if( (flags & SEGMENT_BTREE_FLAG)==0 ) break;
+
+      iPg = pageGetPtr(aData, nData);
+      nRec = pageGetNRec(aData, nData);
+
+      iMin = 0;
+      iMax = nRec-1;
+      while( iMax>=iMin ){
+        int iTry = (iMin+iMax)/2;
+        void *pKeyT; int nKeyT;       /* Key for cell iTry */
+        int iTopicT;                  /* Topic for key pKeyT/nKeyT */
+        LsmPgno iPtr;                 /* Pointer associated with cell iTry */
+        int res;                      /* (pKey - pKeyT) */
+
+        rc = pageGetBtreeKey(
+            pSeg, pPg, iTry, &iPtr, &iTopicT, &pKeyT, &nKeyT, &blob
+        );
+        if( rc!=LSM_OK ) break;
+        if( piFirst && pKeyT==blob.pData ){
+          *piFirst = pageGetBtreeRef(pPg, iTry);
+          piFirst = 0;
+          i++;
+        }
+
+        res = sortedKeyCompare(
+            pCsr->pDb->xCmp, iTopic, pKey, nKey, iTopicT, pKeyT, nKeyT
+        );
+        if( res<0 ){
+          iPg = iPtr;
+          iMax = iTry-1;
+        }else{
+          iMin = iTry+1;
+        }
+      }
+      lsmFsPageRelease(pPg);
+      pPg = 0;
+    }
+  }while( rc==LSM_OK );
+
+  sortedBlobFree(&blob);
+  assert( (rc==LSM_OK)==(pPg!=0) );
+  if( ppPg ){
+    *ppPg = pPg;
+  }else{
+    lsmFsPageRelease(pPg);
+  }
+  return rc;
+}
+
+static int seekInSegment(
+  MultiCursor *pCsr, 
+  SegmentPtr *pPtr,
+  int iTopic,
+  void *pKey, int nKey,
+  LsmPgno iPg,                    /* Page to search */
+  int eSeek,                      /* Search bias - see above */
+  LsmPgno *piPtr,                 /* OUT: FC pointer */
+  int *pbStop                     /* OUT: Stop search flag */
+){
+  LsmPgno iPtr = iPg;
+  int rc = LSM_OK;
+
+  if( pPtr->pSeg->iRoot ){
+    Page *pPg;
+    assert( pPtr->pSeg->iRoot!=0 );
+    rc = seekInBtree(pCsr, pPtr->pSeg, iTopic, pKey, nKey, 0, &pPg);
+    if( rc==LSM_OK ) segmentPtrSetPage(pPtr, pPg);
+  }else{
+    if( iPtr==0 ){
+      iPtr = pPtr->pSeg->iFirst;
+    }
+    if( rc==LSM_OK ){
+      rc = segmentPtrLoadPage(pCsr->pDb->pFS, pPtr, iPtr);
+    }
+  }
+
+  if( rc==LSM_OK ){
+    rc = segmentPtrSeek(pCsr, pPtr, iTopic, pKey, nKey, eSeek, piPtr, pbStop);
+  }
+  return rc;
+}
+
+/*
+** Seek each segment pointer in the array of (pLvl->nRight+1) at aPtr[].
+**
+** pbStop:
+**   This parameter is only significant if parameter eSeek is set to
+**   LSM_SEEK_EQ. In this case, it is set to true before returning if
+**   the seek operation is finished. This can happen in two ways:
+**   
+**     a) A key matching (pKey/nKey) is found, or
+**     b) A point-delete or range-delete deleting the key is found.
+**
+**   In case (a), the multi-cursor CURSOR_SEEK_EQ flag is set and the pCsr->key
+**   and pCsr->val blobs populated before returning.
+*/
+static int seekInLevel(
+  MultiCursor *pCsr,              /* Sorted cursor object to seek */
+  SegmentPtr *aPtr,               /* Pointer to array of (nRhs+1) SPs */
+  int eSeek,                      /* Search bias - see above */
+  int iTopic,                     /* Key topic to search for */
+  void *pKey, int nKey,           /* Key to search for */
+  LsmPgno *piPgno,                /* IN/OUT: fraction cascade pointer (or 0) */
+  int *pbStop                     /* OUT: See above */
+){
+  Level *pLvl = aPtr[0].pLevel;   /* Level to seek within */
+  int rc = LSM_OK;                /* Return code */
+  LsmPgno iOut = 0;               /* Pointer to return to caller */
+  int res = -1;                   /* Result of xCmp(pKey, split) */
+  int nRhs = pLvl->nRight;        /* Number of right-hand-side segments */
+  int bStop = 0;
+
+  /* If this is a composite level (one currently undergoing an incremental
+  ** merge), figure out if the search key is larger or smaller than the
+  ** levels split-key.  */
+  if( nRhs ){
+    res = sortedKeyCompare(pCsr->pDb->xCmp, iTopic, pKey, nKey, 
+        pLvl->iSplitTopic, pLvl->pSplitKey, pLvl->nSplitKey
+    );
+  }
+
+  /* If (res<0), then key pKey/nKey is smaller than the split-key (or this
+  ** is not a composite level and there is no split-key). Search the 
+  ** left-hand-side of the level in this case.  */
+  if( res<0 ){
+    int i;
+    LsmPgno iPtr = 0;
+    if( nRhs==0 ) iPtr = *piPgno;
+
+    rc = seekInSegment(
+        pCsr, &aPtr[0], iTopic, pKey, nKey, iPtr, eSeek, &iOut, &bStop
+    );
+    if( rc==LSM_OK && nRhs>0 && eSeek==LSM_SEEK_GE && aPtr[0].pPg==0 ){
+      res = 0;
+    }
+    for(i=1; i<=nRhs; i++){
+      segmentPtrReset(&aPtr[i], LSM_SEGMENTPTR_FREE_THRESHOLD);
+    }
+  }
+  
+  if( res>=0 ){
+    int bHit = 0;                 /* True if at least one rhs is not EOF */
+    LsmPgno iPtr = *piPgno;
+    int i;
+    segmentPtrReset(&aPtr[0], LSM_SEGMENTPTR_FREE_THRESHOLD);
+    for(i=1; rc==LSM_OK && i<=nRhs && bStop==0; i++){
+      SegmentPtr *pPtr = &aPtr[i];
+      iOut = 0;
+      rc = seekInSegment(
+          pCsr, pPtr, iTopic, pKey, nKey, iPtr, eSeek, &iOut, &bStop
+      );
+      iPtr = iOut;
+
+      /* If the segment-pointer has settled on a key that is smaller than
+      ** the splitkey, invalidate the segment-pointer.  */
+      if( pPtr->pPg ){
+        res = sortedKeyCompare(pCsr->pDb->xCmp, 
+            rtTopic(pPtr->eType), pPtr->pKey, pPtr->nKey, 
+            pLvl->iSplitTopic, pLvl->pSplitKey, pLvl->nSplitKey
+        );
+        if( res<0 ){
+          if( pPtr->eType & LSM_START_DELETE ){
+            pPtr->eType &= ~LSM_INSERT;
+            pPtr->pKey = pLvl->pSplitKey;
+            pPtr->nKey = pLvl->nSplitKey;
+            pPtr->pVal = 0;
+            pPtr->nVal = 0;
+          }else{
+            segmentPtrReset(pPtr, LSM_SEGMENTPTR_FREE_THRESHOLD);
+          }
+        }
+      }
+
+      if( aPtr[i].pKey ) bHit = 1;
+    }
+
+    if( rc==LSM_OK && eSeek==LSM_SEEK_LE && bHit==0 ){
+      rc = segmentPtrEnd(pCsr, &aPtr[0], 1);
+    }
+  }
+
+  assert( eSeek==LSM_SEEK_EQ || bStop==0 );
+  *piPgno = iOut;
+  *pbStop = bStop;
+  return rc;
+}
+
+static void multiCursorGetKey(
+  MultiCursor *pCsr, 
+  int iKey,
+  int *peType,                    /* OUT: Key type (SORTED_WRITE etc.) */
+  void **ppKey,                   /* OUT: Pointer to buffer containing key */
+  int *pnKey                      /* OUT: Size of *ppKey in bytes */
+){
+  int nKey = 0;
+  void *pKey = 0;
+  int eType = 0;
+
+  switch( iKey ){
+    case CURSOR_DATA_TREE0:
+    case CURSOR_DATA_TREE1: {
+      TreeCursor *pTreeCsr = pCsr->apTreeCsr[iKey-CURSOR_DATA_TREE0];
+      if( lsmTreeCursorValid(pTreeCsr) ){
+        lsmTreeCursorKey(pTreeCsr, &eType, &pKey, &nKey);
+      }
+      break;
+    }
+
+    case CURSOR_DATA_SYSTEM: {
+      Snapshot *pWorker = pCsr->pDb->pWorker;
+      if( pWorker && (pCsr->flags & CURSOR_FLUSH_FREELIST) ){
+        int nEntry = pWorker->freelist.nEntry;
+        if( pCsr->iFree < (nEntry*2) ){
+          FreelistEntry *aEntry = pWorker->freelist.aEntry;
+          int i = nEntry - 1 - (pCsr->iFree / 2);
+          u32 iKey2 = 0;
+
+          if( (pCsr->iFree % 2) ){
+            eType = LSM_END_DELETE|LSM_SYSTEMKEY;
+            iKey2 = aEntry[i].iBlk-1;
+          }else if( aEntry[i].iId>=0 ){
+            eType = LSM_INSERT|LSM_SYSTEMKEY;
+            iKey2 = aEntry[i].iBlk;
+
+            /* If the in-memory entry immediately before this one was a
+             ** DELETE, and the block number is one greater than the current
+             ** block number, mark this entry as an "end-delete-range". */
+            if( i<(nEntry-1) && aEntry[i+1].iBlk==iKey2+1 && aEntry[i+1].iId<0 ){
+              eType |= LSM_END_DELETE;
+            }
+
+          }else{
+            eType = LSM_START_DELETE|LSM_SYSTEMKEY;
+            iKey2 = aEntry[i].iBlk + 1;
+          }
+
+          /* If the in-memory entry immediately after this one is a
+          ** DELETE, and the block number is one less than the current
+          ** key, mark this entry as an "start-delete-range".  */
+          if( i>0 && aEntry[i-1].iBlk==iKey2-1 && aEntry[i-1].iId<0 ){
+            eType |= LSM_START_DELETE;
+          }
+
+          pKey = pCsr->pSystemVal;
+          nKey = 4;
+          lsmPutU32(pKey, ~iKey2);
+        }
+      }
+      break;
+    }
+
+    default: {
+      int iPtr = iKey - CURSOR_DATA_SEGMENT;
+      assert( iPtr>=0 );
+      if( iPtr==pCsr->nPtr ){
+        if( pCsr->pBtCsr ){
+          pKey = pCsr->pBtCsr->pKey;
+          nKey = pCsr->pBtCsr->nKey;
+          eType = pCsr->pBtCsr->eType;
+        }
+      }else if( iPtr<pCsr->nPtr ){
+        SegmentPtr *pPtr = &pCsr->aPtr[iPtr];
+        if( pPtr->pPg ){
+          pKey = pPtr->pKey;
+          nKey = pPtr->nKey;
+          eType = pPtr->eType;
+        }
+      }
+      break;
+    }
+  }
+
+  if( peType ) *peType = eType;
+  if( pnKey ) *pnKey = nKey;
+  if( ppKey ) *ppKey = pKey;
+}
+
+static int sortedDbKeyCompare(
+  MultiCursor *pCsr,
+  int iLhsFlags, void *pLhsKey, int nLhsKey,
+  int iRhsFlags, void *pRhsKey, int nRhsKey
+){
+  int (*xCmp)(void *, int, void *, int) = pCsr->pDb->xCmp;
+  int res;
+
+  /* Compare the keys, including the system flag. */
+  res = sortedKeyCompare(xCmp, 
+    rtTopic(iLhsFlags), pLhsKey, nLhsKey,
+    rtTopic(iRhsFlags), pRhsKey, nRhsKey
+  );
+
+  /* If a key has the LSM_START_DELETE flag set, but not the LSM_INSERT or
+  ** LSM_POINT_DELETE flags, it is considered a delta larger. This prevents
+  ** the beginning of an open-ended set from masking a database entry or
+  ** delete at a lower level.  */
+  if( res==0 && (pCsr->flags & CURSOR_IGNORE_DELETE) ){
+    const int m = LSM_POINT_DELETE|LSM_INSERT|LSM_END_DELETE |LSM_START_DELETE;
+    int iDel1 = 0;
+    int iDel2 = 0;
+
+    if( LSM_START_DELETE==(iLhsFlags & m) ) iDel1 = +1;
+    if( LSM_END_DELETE  ==(iLhsFlags & m) ) iDel1 = -1;
+    if( LSM_START_DELETE==(iRhsFlags & m) ) iDel2 = +1;
+    if( LSM_END_DELETE  ==(iRhsFlags & m) ) iDel2 = -1;
+
+    res = (iDel1 - iDel2);
+  }
+
+  return res;
+}
+
+static void multiCursorDoCompare(MultiCursor *pCsr, int iOut, int bReverse){
+  int i1;
+  int i2;
+  int iRes;
+  void *pKey1; int nKey1; int eType1;
+  void *pKey2; int nKey2; int eType2;
+  const int mul = (bReverse ? -1 : 1);
+
+  assert( pCsr->aTree && iOut<pCsr->nTree );
+  if( iOut>=(pCsr->nTree/2) ){
+    i1 = (iOut - pCsr->nTree/2) * 2;
+    i2 = i1 + 1;
+  }else{
+    i1 = pCsr->aTree[iOut*2];
+    i2 = pCsr->aTree[iOut*2+1];
+  }
+
+  multiCursorGetKey(pCsr, i1, &eType1, &pKey1, &nKey1);
+  multiCursorGetKey(pCsr, i2, &eType2, &pKey2, &nKey2);
+
+  if( pKey1==0 ){
+    iRes = i2;
+  }else if( pKey2==0 ){
+    iRes = i1;
+  }else{
+    int res;
+
+    /* Compare the keys */
+    res = sortedDbKeyCompare(pCsr,
+        eType1, pKey1, nKey1, eType2, pKey2, nKey2
+    );
+
+    res = res * mul;
+    if( res==0 ){
+      /* The two keys are identical. Normally, this means that the key from
+      ** the newer run clobbers the old. However, if the newer key is a
+      ** separator key, or a range-delete-boundary only, do not allow it
+      ** to clobber an older entry.  */
+      int nc1 = (eType1 & (LSM_INSERT|LSM_POINT_DELETE))==0;
+      int nc2 = (eType2 & (LSM_INSERT|LSM_POINT_DELETE))==0;
+      iRes = (nc1 > nc2) ? i2 : i1;
+    }else if( res<0 ){
+      iRes = i1;
+    }else{
+      iRes = i2;
+    }
+  }
+
+  pCsr->aTree[iOut] = iRes;
+}
+
+/*
+** This function advances segment pointer iPtr belonging to multi-cursor
+** pCsr forward (bReverse==0) or backward (bReverse!=0).
+**
+** If the segment pointer points to a segment that is part of a composite
+** level, then the following special case is handled.
+**
+**   * If iPtr is the lhs of a composite level, and the cursor is being
+**     advanced forwards, and segment iPtr is at EOF, move all pointers
+**     that correspond to rhs segments of the same level to the first
+**     key in their respective data.
+*/
+static int segmentCursorAdvance(
+  MultiCursor *pCsr, 
+  int iPtr,
+  int bReverse
+){
+  int rc;
+  SegmentPtr *pPtr = &pCsr->aPtr[iPtr];
+  Level *pLvl = pPtr->pLevel;
+  int bComposite;                 /* True if pPtr is part of composite level */
+
+  /* Advance the segment-pointer object. */
+  rc = segmentPtrAdvance(pCsr, pPtr, bReverse);
+  if( rc!=LSM_OK ) return rc;
+
+  bComposite = (pLvl->nRight>0 && pCsr->nPtr>pLvl->nRight);
+  if( bComposite && pPtr->pPg==0 ){
+    int bFix = 0;
+    if( (bReverse==0)==(pPtr->pSeg==&pLvl->lhs) ){
+      int i;
+      if( bReverse ){
+        SegmentPtr *pLhs = &pCsr->aPtr[iPtr - 1 - (pPtr->pSeg - pLvl->aRhs)];
+        for(i=0; i<pLvl->nRight; i++){
+          if( pLhs[i+1].pPg ) break;
+        }
+        if( i==pLvl->nRight ){
+          bFix = 1;
+          rc = segmentPtrEnd(pCsr, pLhs, 1);
+        }
+      }else{
+        bFix = 1;
+        for(i=0; rc==LSM_OK && i<pLvl->nRight; i++){
+          rc = sortedRhsFirst(pCsr, pLvl, &pCsr->aPtr[iPtr+1+i]);
+        }
+      }
+    }
+
+    if( bFix ){
+      int i;
+      for(i=pCsr->nTree-1; i>0; i--){
+        multiCursorDoCompare(pCsr, i, bReverse);
+      }
+    }
+  }
+
+#if 0
+  if( bComposite && pPtr->pSeg==&pLvl->lhs       /* lhs of composite level */
+   && bReverse==0                                /* csr advanced forwards */
+   && pPtr->pPg==0                               /* segment at EOF */
+  ){
+    int i;
+    for(i=0; rc==LSM_OK && i<pLvl->nRight; i++){
+      rc = sortedRhsFirst(pCsr, pLvl, &pCsr->aPtr[iPtr+1+i]);
+    }
+    for(i=pCsr->nTree-1; i>0; i--){
+      multiCursorDoCompare(pCsr, i, 0);
+    }
+  }
+#endif
+
+  return rc;
+}
+
+static void mcursorFreeComponents(MultiCursor *pCsr){
+  int i;
+  lsm_env *pEnv = pCsr->pDb->pEnv;
+
+  /* Close the tree cursor, if any. */
+  lsmTreeCursorDestroy(pCsr->apTreeCsr[0]);
+  lsmTreeCursorDestroy(pCsr->apTreeCsr[1]);
+
+  /* Reset the segment pointers */
+  for(i=0; i<pCsr->nPtr; i++){
+    segmentPtrReset(&pCsr->aPtr[i], 0);
+  }
+
+  /* And the b-tree cursor, if any */
+  btreeCursorFree(pCsr->pBtCsr);
+
+  /* Free allocations */
+  lsmFree(pEnv, pCsr->aPtr);
+  lsmFree(pEnv, pCsr->aTree);
+  lsmFree(pEnv, pCsr->pSystemVal);
+
+  /* Zero fields */
+  pCsr->nPtr = 0;
+  pCsr->aPtr = 0;
+  pCsr->nTree = 0;
+  pCsr->aTree = 0;
+  pCsr->pSystemVal = 0;
+  pCsr->apTreeCsr[0] = 0;
+  pCsr->apTreeCsr[1] = 0;
+  pCsr->pBtCsr = 0;
+}
+
+void lsmMCursorFreeCache(lsm_db *pDb){
+  MultiCursor *p;
+  MultiCursor *pNext;
+  for(p=pDb->pCsrCache; p; p=pNext){
+    pNext = p->pNext;
+    lsmMCursorClose(p, 0);
+  }
+  pDb->pCsrCache = 0;
+}
+
+/*
+** Close the cursor passed as the first argument.
+**
+** If the bCache parameter is true, then shift the cursor to the pCsrCache
+** list for possible reuse instead of actually deleting it.
+*/
+void lsmMCursorClose(MultiCursor *pCsr, int bCache){
+  if( pCsr ){
+    lsm_db *pDb = pCsr->pDb;
+    MultiCursor **pp;             /* Iterator variable */
+
+    /* The cursor may or may not be currently part of the linked list 
+    ** starting at lsm_db.pCsr. If it is, extract it.  */
+    for(pp=&pDb->pCsr; *pp; pp=&((*pp)->pNext)){
+      if( *pp==pCsr ){
+        *pp = pCsr->pNext;
+        break;
+      }
+    }
+
+    if( bCache ){
+      int i;                      /* Used to iterate through segment-pointers */
+
+      /* Release any page references held by this cursor. */
+      assert( !pCsr->pBtCsr );
+      for(i=0; i<pCsr->nPtr; i++){
+        SegmentPtr *pPtr = &pCsr->aPtr[i];
+        lsmFsPageRelease(pPtr->pPg);
+        pPtr->pPg = 0;
+      }
+
+      /* Reset the tree cursors */
+      lsmTreeCursorReset(pCsr->apTreeCsr[0]);
+      lsmTreeCursorReset(pCsr->apTreeCsr[1]);
+
+      /* Add the cursor to the pCsrCache list */
+      pCsr->pNext = pDb->pCsrCache;
+      pDb->pCsrCache = pCsr;
+    }else{
+      /* Free the allocation used to cache the current key, if any. */
+      sortedBlobFree(&pCsr->key);
+      sortedBlobFree(&pCsr->val);
+
+      /* Free the component cursors */
+      mcursorFreeComponents(pCsr);
+
+      /* Free the cursor structure itself */
+      lsmFree(pDb->pEnv, pCsr);
+    }
+  }
+}
+
+#define TREE_NONE 0
+#define TREE_OLD  1
+#define TREE_BOTH 2
+
+/*
+** Parameter eTree is one of TREE_OLD or TREE_BOTH.
+*/
+static int multiCursorAddTree(MultiCursor *pCsr, Snapshot *pSnap, int eTree){
+  int rc = LSM_OK;
+  lsm_db *db = pCsr->pDb;
+
+  /* Add a tree cursor on the 'old' tree, if it exists. */
+  if( eTree!=TREE_NONE 
+   && lsmTreeHasOld(db) 
+   && db->treehdr.iOldLog!=pSnap->iLogOff 
+  ){
+    rc = lsmTreeCursorNew(db, 1, &pCsr->apTreeCsr[1]);
+  }
+
+  /* Add a tree cursor on the 'current' tree, if required. */
+  if( rc==LSM_OK && eTree==TREE_BOTH ){
+    rc = lsmTreeCursorNew(db, 0, &pCsr->apTreeCsr[0]);
+  }
+
+  return rc;
+}
+
+static int multiCursorAddRhs(MultiCursor *pCsr, Level *pLvl){
+  int i;
+  int nRhs = pLvl->nRight;
+
+  assert( pLvl->nRight>0 );
+  assert( pCsr->aPtr==0 );
+  pCsr->aPtr = lsmMallocZero(pCsr->pDb->pEnv, sizeof(SegmentPtr) * nRhs);
+  if( !pCsr->aPtr ) return LSM_NOMEM_BKPT;
+  pCsr->nPtr = nRhs;
+
+  for(i=0; i<nRhs; i++){
+    pCsr->aPtr[i].pSeg = &pLvl->aRhs[i];
+    pCsr->aPtr[i].pLevel = pLvl;
+  }
+
+  return LSM_OK;
+}
+
+static void multiCursorAddOne(MultiCursor *pCsr, Level *pLvl, int *pRc){
+  if( *pRc==LSM_OK ){
+    int iPtr = pCsr->nPtr;
+    int i;
+    pCsr->aPtr[iPtr].pLevel = pLvl;
+    pCsr->aPtr[iPtr].pSeg = &pLvl->lhs;
+    iPtr++;
+    for(i=0; i<pLvl->nRight; i++){
+      pCsr->aPtr[iPtr].pLevel = pLvl;
+      pCsr->aPtr[iPtr].pSeg = &pLvl->aRhs[i];
+      iPtr++;
+    }
+
+    if( pLvl->nRight && pLvl->pSplitKey==0 ){
+      sortedSplitkey(pCsr->pDb, pLvl, pRc);
+    }
+    pCsr->nPtr = iPtr;
+  }
+}
+
+static int multiCursorAddAll(MultiCursor *pCsr, Snapshot *pSnap){
+  Level *pLvl;
+  int nPtr = 0;
+  int rc = LSM_OK;
+
+  for(pLvl=pSnap->pLevel; pLvl; pLvl=pLvl->pNext){
+    /* If the LEVEL_INCOMPLETE flag is set, then this function is being
+    ** called (indirectly) from within a sortedNewToplevel() call to
+    ** construct pLvl. In this case ignore pLvl - this cursor is going to
+    ** be used to retrieve a freelist entry from the LSM, and the partially
+    ** complete level may confuse it.  */
+    if( pLvl->flags & LEVEL_INCOMPLETE ) continue;
+    nPtr += (1 + pLvl->nRight);
+  }
+
+  assert( pCsr->aPtr==0 );
+  pCsr->aPtr = lsmMallocZeroRc(pCsr->pDb->pEnv, sizeof(SegmentPtr) * nPtr, &rc);
+
+  for(pLvl=pSnap->pLevel; pLvl; pLvl=pLvl->pNext){
+    if( (pLvl->flags & LEVEL_INCOMPLETE)==0 ){
+      multiCursorAddOne(pCsr, pLvl, &rc);
+    }
+  }
+
+  return rc;
+}
+
+static int multiCursorInit(MultiCursor *pCsr, Snapshot *pSnap){
+  int rc;
+  rc = multiCursorAddAll(pCsr, pSnap);
+  if( rc==LSM_OK ){
+    rc = multiCursorAddTree(pCsr, pSnap, TREE_BOTH);
+  }
+  pCsr->flags |= (CURSOR_IGNORE_SYSTEM | CURSOR_IGNORE_DELETE);
+  return rc;
+}
+
+static MultiCursor *multiCursorNew(lsm_db *db, int *pRc){
+  MultiCursor *pCsr;
+  pCsr = (MultiCursor *)lsmMallocZeroRc(db->pEnv, sizeof(MultiCursor), pRc);
+  if( pCsr ){
+    pCsr->pNext = db->pCsr;
+    db->pCsr = pCsr;
+    pCsr->pDb = db;
+  }
+  return pCsr;
+}
+
+
+void lsmSortedRemap(lsm_db *pDb){
+  MultiCursor *pCsr;
+  for(pCsr=pDb->pCsr; pCsr; pCsr=pCsr->pNext){
+    int iPtr;
+    if( pCsr->pBtCsr ){
+      btreeCursorLoadKey(pCsr->pBtCsr);
+    }
+    for(iPtr=0; iPtr<pCsr->nPtr; iPtr++){
+      segmentPtrLoadCell(&pCsr->aPtr[iPtr], pCsr->aPtr[iPtr].iCell);
+    }
+  }
+}
+
+static void multiCursorReadSeparators(MultiCursor *pCsr){
+  if( pCsr->nPtr>0 ){
+    pCsr->flags |= CURSOR_READ_SEPARATORS;
+  }
+}
+
+/*
+** Have this cursor skip over SORTED_DELETE entries.
+*/
+static void multiCursorIgnoreDelete(MultiCursor *pCsr){
+  if( pCsr ) pCsr->flags |= CURSOR_IGNORE_DELETE;
+}
+
+/*
+** If the free-block list is not empty, then have this cursor visit a key
+** with (a) the system bit set, and (b) the key "FREELIST" and (c) a value 
+** blob containing the serialized free-block list.
+*/
+static int multiCursorVisitFreelist(MultiCursor *pCsr){
+  int rc = LSM_OK;
+  pCsr->flags |= CURSOR_FLUSH_FREELIST;
+  pCsr->pSystemVal = lsmMallocRc(pCsr->pDb->pEnv, 4 + 8, &rc);
+  return rc;
+}
+
+/*
+** Allocate and return a new database cursor.
+**
+** This method should only be called to allocate user cursors. As it may
+** recycle a cursor from lsm_db.pCsrCache.
+*/
+int lsmMCursorNew(
+  lsm_db *pDb,                    /* Database handle */
+  MultiCursor **ppCsr             /* OUT: Allocated cursor */
+){
+  MultiCursor *pCsr = 0;
+  int rc = LSM_OK;
+
+  if( pDb->pCsrCache ){
+    int bOld;                     /* True if there is an old in-memory tree */
+
+    /* Remove a cursor from the pCsrCache list and add it to the open list. */
+    pCsr = pDb->pCsrCache;
+    pDb->pCsrCache = pCsr->pNext;
+    pCsr->pNext = pDb->pCsr;
+    pDb->pCsr = pCsr;
+
+    /* The cursor can almost be used as is, except that the old in-memory
+    ** tree cursor may be present and not required, or required and not
+    ** present. Fix this if required.  */
+    bOld = (lsmTreeHasOld(pDb) && pDb->treehdr.iOldLog!=pDb->pClient->iLogOff);
+    if( !bOld && pCsr->apTreeCsr[1] ){
+      lsmTreeCursorDestroy(pCsr->apTreeCsr[1]);
+      pCsr->apTreeCsr[1] = 0;
+    }else if( bOld && !pCsr->apTreeCsr[1] ){
+      rc = lsmTreeCursorNew(pDb, 1, &pCsr->apTreeCsr[1]);
+    }
+
+    pCsr->flags = (CURSOR_IGNORE_SYSTEM | CURSOR_IGNORE_DELETE);
+
+  }else{
+    pCsr = multiCursorNew(pDb, &rc);
+    if( rc==LSM_OK ) rc = multiCursorInit(pCsr, pDb->pClient);
+  }
+
+  if( rc!=LSM_OK ){
+    lsmMCursorClose(pCsr, 0);
+    pCsr = 0;
+  }
+  assert( (rc==LSM_OK)==(pCsr!=0) );
+  *ppCsr = pCsr;
+  return rc;
+}
+
+static int multiCursorGetVal(
+  MultiCursor *pCsr, 
+  int iVal, 
+  void **ppVal, 
+  int *pnVal
+){
+  int rc = LSM_OK;
+
+  *ppVal = 0;
+  *pnVal = 0;
+
+  switch( iVal ){
+    case CURSOR_DATA_TREE0:
+    case CURSOR_DATA_TREE1: {
+      TreeCursor *pTreeCsr = pCsr->apTreeCsr[iVal-CURSOR_DATA_TREE0];
+      if( lsmTreeCursorValid(pTreeCsr) ){
+        lsmTreeCursorValue(pTreeCsr, ppVal, pnVal);
+      }else{
+        *ppVal = 0;
+        *pnVal = 0;
+      }
+      break;
+    }
+
+    case CURSOR_DATA_SYSTEM: {
+      Snapshot *pWorker = pCsr->pDb->pWorker;
+      if( pWorker 
+       && (pCsr->iFree % 2)==0
+       && pCsr->iFree < (pWorker->freelist.nEntry*2)
+      ){
+        int iEntry = pWorker->freelist.nEntry - 1 - (pCsr->iFree / 2);
+        u8 *aVal = &((u8 *)(pCsr->pSystemVal))[4];
+        lsmPutU64(aVal, pWorker->freelist.aEntry[iEntry].iId);
+        *ppVal = aVal;
+        *pnVal = 8;
+      }
+      break;
+    }
+
+    default: {
+      int iPtr = iVal-CURSOR_DATA_SEGMENT;
+      if( iPtr<pCsr->nPtr ){
+        SegmentPtr *pPtr = &pCsr->aPtr[iPtr];
+        if( pPtr->pPg ){
+          *ppVal = pPtr->pVal;
+          *pnVal = pPtr->nVal;
+        }
+      }
+    }
+  }
+
+  assert( rc==LSM_OK || (*ppVal==0 && *pnVal==0) );
+  return rc;
+}
+
+static int multiCursorAdvance(MultiCursor *pCsr, int bReverse);
+
+/*
+** This function is called by worker connections to walk the part of the
+** free-list stored within the LSM data structure.
+*/
+int lsmSortedWalkFreelist(
+  lsm_db *pDb,                    /* Database handle */
+  int bReverse,                   /* True to iterate from largest to smallest */
+  int (*x)(void *, int, i64),     /* Callback function */
+  void *pCtx                      /* First argument to pass to callback */
+){
+  MultiCursor *pCsr;              /* Cursor used to read db */
+  int rc = LSM_OK;                /* Return Code */
+  Snapshot *pSnap = 0;
+
+  assert( pDb->pWorker );
+  if( pDb->bIncrMerge ){
+    rc = lsmCheckpointDeserialize(pDb, 0, pDb->pShmhdr->aSnap1, &pSnap);
+    if( rc!=LSM_OK ) return rc;
+  }else{
+    pSnap = pDb->pWorker;
+  }
+
+  pCsr = multiCursorNew(pDb, &rc);
+  if( pCsr ){
+    rc = multiCursorAddAll(pCsr, pSnap);
+    pCsr->flags |= CURSOR_IGNORE_DELETE;
+  }
+  
+  if( rc==LSM_OK ){
+    if( bReverse==0 ){
+      rc = lsmMCursorLast(pCsr);
+    }else{
+      rc = lsmMCursorSeek(pCsr, 1, "", 0, LSM_SEEK_GE);
+    }
+
+    while( rc==LSM_OK && lsmMCursorValid(pCsr) && rtIsSystem(pCsr->eType) ){
+      void *pKey; int nKey;
+      void *pVal = 0; int nVal = 0;
+
+      rc = lsmMCursorKey(pCsr, &pKey, &nKey);
+      if( rc==LSM_OK ) rc = lsmMCursorValue(pCsr, &pVal, &nVal);
+      if( rc==LSM_OK && (nKey!=4 || nVal!=8) ) rc = LSM_CORRUPT_BKPT;
+
+      if( rc==LSM_OK ){
+        int iBlk;
+        i64 iSnap;
+        iBlk = (int)(~(lsmGetU32((u8 *)pKey)));
+        iSnap = (i64)lsmGetU64((u8 *)pVal);
+        if( x(pCtx, iBlk, iSnap) ) break;
+        rc = multiCursorAdvance(pCsr, !bReverse);
+      }
+    }
+  }
+
+  lsmMCursorClose(pCsr, 0);
+  if( pSnap!=pDb->pWorker ){
+    lsmFreeSnapshot(pDb->pEnv, pSnap);
+  }
+
+  return rc;
+}
+
+int lsmSortedLoadFreelist(
+  lsm_db *pDb,                    /* Database handle (must be worker) */
+  void **ppVal,                   /* OUT: Blob containing LSM free-list */
+  int *pnVal                      /* OUT: Size of *ppVal blob in bytes */
+){
+  MultiCursor *pCsr;              /* Cursor used to retreive free-list */
+  int rc = LSM_OK;                /* Return Code */
+
+  assert( pDb->pWorker );
+  assert( *ppVal==0 && *pnVal==0 );
+
+  pCsr = multiCursorNew(pDb, &rc);
+  if( pCsr ){
+    rc = multiCursorAddAll(pCsr, pDb->pWorker);
+    pCsr->flags |= CURSOR_IGNORE_DELETE;
+  }
+  
+  if( rc==LSM_OK ){
+    rc = lsmMCursorLast(pCsr);
+    if( rc==LSM_OK 
+     && rtIsWrite(pCsr->eType) && rtIsSystem(pCsr->eType)
+     && pCsr->key.nData==8 
+     && 0==memcmp(pCsr->key.pData, "FREELIST", 8)
+    ){
+      void *pVal; int nVal;         /* Value read from database */
+      rc = lsmMCursorValue(pCsr, &pVal, &nVal);
+      if( rc==LSM_OK ){
+        *ppVal = lsmMallocRc(pDb->pEnv, nVal, &rc);
+        if( *ppVal ){
+          memcpy(*ppVal, pVal, nVal);
+          *pnVal = nVal;
+        }
+      }
+    }
+
+    lsmMCursorClose(pCsr, 0);
+  }
+
+  return rc;
+}
+
+static int multiCursorAllocTree(MultiCursor *pCsr){
+  int rc = LSM_OK;
+  if( pCsr->aTree==0 ){
+    int nByte;                    /* Bytes of space to allocate */
+    int nMin;                     /* Total number of cursors being merged */
+
+    nMin = CURSOR_DATA_SEGMENT + pCsr->nPtr + (pCsr->pBtCsr!=0);
+    pCsr->nTree = 2;
+    while( pCsr->nTree<nMin ){
+      pCsr->nTree = pCsr->nTree*2;
+    }
+
+    nByte = sizeof(int)*pCsr->nTree*2;
+    pCsr->aTree = (int *)lsmMallocZeroRc(pCsr->pDb->pEnv, nByte, &rc);
+  }
+  return rc;
+}
+
+static void multiCursorCacheKey(MultiCursor *pCsr, int *pRc){
+  if( *pRc==LSM_OK ){
+    void *pKey;
+    int nKey;
+    multiCursorGetKey(pCsr, pCsr->aTree[1], &pCsr->eType, &pKey, &nKey);
+    *pRc = sortedBlobSet(pCsr->pDb->pEnv, &pCsr->key, pKey, nKey);
+  }
+}
+
+#ifdef LSM_DEBUG_EXPENSIVE
+static void assertCursorTree(MultiCursor *pCsr){
+  int bRev = !!(pCsr->flags & CURSOR_PREV_OK);
+  int *aSave = pCsr->aTree;
+  int nSave = pCsr->nTree;
+  int rc;
+
+  pCsr->aTree = 0;
+  pCsr->nTree = 0;
+  rc = multiCursorAllocTree(pCsr);
+  if( rc==LSM_OK ){
+    int i;
+    for(i=pCsr->nTree-1; i>0; i--){
+      multiCursorDoCompare(pCsr, i, bRev);
+    }
+
+    assert( nSave==pCsr->nTree 
+        && 0==memcmp(aSave, pCsr->aTree, sizeof(int)*nSave)
+    );
+
+    lsmFree(pCsr->pDb->pEnv, pCsr->aTree);
+  }
+
+  pCsr->aTree = aSave;
+  pCsr->nTree = nSave;
+}
+#else
+# define assertCursorTree(x)
+#endif
+
+static int mcursorLocationOk(MultiCursor *pCsr, int bDeleteOk){
+  int eType = pCsr->eType;
+  int iKey;
+  int i;
+  int rdmask;
+  
+  assert( pCsr->flags & (CURSOR_NEXT_OK|CURSOR_PREV_OK) );
+  assertCursorTree(pCsr);
+
+  rdmask = (pCsr->flags & CURSOR_NEXT_OK) ? LSM_END_DELETE : LSM_START_DELETE;
+
+  /* If the cursor does not currently point to an actual database key (i.e.
+  ** it points to a delete key, or the start or end of a range-delete), and
+  ** the CURSOR_IGNORE_DELETE flag is set, skip past this entry.  */
+  if( (pCsr->flags & CURSOR_IGNORE_DELETE) && bDeleteOk==0 ){
+    if( (eType & LSM_INSERT)==0 ) return 0;
+  }
+
+  /* If the cursor points to a system key (free-list entry), and the
+  ** CURSOR_IGNORE_SYSTEM flag is set, skip thie entry.  */
+  if( (pCsr->flags & CURSOR_IGNORE_SYSTEM) && rtTopic(eType)!=0 ){
+    return 0;
+  }
+
+#ifndef NDEBUG
+  /* This block fires assert() statements to check one of the assumptions
+  ** in the comment below - that if the lhs sub-cursor of a level undergoing
+  ** a merge is valid, then all the rhs sub-cursors must be at EOF. 
+  **
+  ** Also assert that all rhs sub-cursors are either at EOF or point to
+  ** a key that is not less than the level split-key.  */
+  for(i=0; i<pCsr->nPtr; i++){
+    SegmentPtr *pPtr = &pCsr->aPtr[i];
+    Level *pLvl = pPtr->pLevel;
+    if( pLvl->nRight && pPtr->pPg ){
+      if( pPtr->pSeg==&pLvl->lhs ){
+        int j;
+        for(j=0; j<pLvl->nRight; j++) assert( pPtr[j+1].pPg==0 );
+      }else{
+        int res = sortedKeyCompare(pCsr->pDb->xCmp, 
+            rtTopic(pPtr->eType), pPtr->pKey, pPtr->nKey,
+            pLvl->iSplitTopic, pLvl->pSplitKey, pLvl->nSplitKey
+        );
+        assert( res>=0 );
+      }
+    }
+  }
+#endif
+
+  /* Now check if this key has already been deleted by a range-delete. If 
+  ** so, skip past it.
+  **
+  ** Assume, for the moment, that the tree contains no levels currently 
+  ** undergoing incremental merge, and that this cursor is iterating forwards
+  ** through the database keys. The cursor currently points to a key in
+  ** level L. This key has already been deleted if any of the sub-cursors
+  ** that point to levels newer than L (or to the in-memory tree) point to
+  ** a key greater than the current key with the LSM_END_DELETE flag set.
+  **
+  ** Or, if the cursor is iterating backwards through data keys, if any
+  ** such sub-cursor points to a key smaller than the current key with the
+  ** LSM_START_DELETE flag set.
+  **
+  ** Why it works with levels undergoing a merge too:
+  **
+  ** When a cursor iterates forwards, the sub-cursors for the rhs of a 
+  ** level are only activated once the lhs reaches EOF. So when iterating
+  ** forwards, the keys visited are the same as if the level was completely
+  ** merged.
+  **
+  ** If the cursor is iterating backwards, then the lhs sub-cursor is not 
+  ** initialized until the last of the rhs sub-cursors has reached EOF.
+  ** Additionally, if the START_DELETE flag is set on the last entry (in
+  ** reverse order - so the entry with the smallest key) of a rhs sub-cursor,
+  ** then a pseudo-key equal to the levels split-key with the END_DELETE
+  ** flag set is visited by the sub-cursor.
+  */ 
+  iKey = pCsr->aTree[1];
+  for(i=0; i<iKey; i++){
+    int csrflags;
+    multiCursorGetKey(pCsr, i, &csrflags, 0, 0);
+    if( (rdmask & csrflags) ){
+      const int SD_ED = (LSM_START_DELETE|LSM_END_DELETE);
+      if( (csrflags & SD_ED)==SD_ED 
+       || (pCsr->flags & CURSOR_IGNORE_DELETE)==0
+      ){
+        void *pKey; int nKey;
+        multiCursorGetKey(pCsr, i, 0, &pKey, &nKey);
+        if( 0==sortedKeyCompare(pCsr->pDb->xCmp,
+              rtTopic(eType), pCsr->key.pData, pCsr->key.nData,
+              rtTopic(csrflags), pKey, nKey
+        )){
+          continue;
+        }
+      }
+      return 0;
+    }
+  }
+
+  /* The current cursor position is one this cursor should visit. Return 1. */
+  return 1;
+}
+
+static int multiCursorSetupTree(MultiCursor *pCsr, int bRev){
+  int rc;
+
+  rc = multiCursorAllocTree(pCsr);
+  if( rc==LSM_OK ){
+    int i;
+    for(i=pCsr->nTree-1; i>0; i--){
+      multiCursorDoCompare(pCsr, i, bRev);
+    }
+  }
+
+  assertCursorTree(pCsr);
+  multiCursorCacheKey(pCsr, &rc);
+
+  if( rc==LSM_OK && mcursorLocationOk(pCsr, 0)==0 ){
+    rc = multiCursorAdvance(pCsr, bRev);
+  }
+  return rc;
+}
+
+
+static int multiCursorEnd(MultiCursor *pCsr, int bLast){
+  int rc = LSM_OK;
+  int i;
+
+  pCsr->flags &= ~(CURSOR_NEXT_OK | CURSOR_PREV_OK | CURSOR_SEEK_EQ);
+  pCsr->flags |= (bLast ? CURSOR_PREV_OK : CURSOR_NEXT_OK);
+  pCsr->iFree = 0;
+
+  /* Position the two in-memory tree cursors */
+  for(i=0; rc==LSM_OK && i<2; i++){
+    if( pCsr->apTreeCsr[i] ){
+      rc = lsmTreeCursorEnd(pCsr->apTreeCsr[i], bLast);
+    }
+  }
+
+  for(i=0; rc==LSM_OK && i<pCsr->nPtr; i++){
+    SegmentPtr *pPtr = &pCsr->aPtr[i];
+    Level *pLvl = pPtr->pLevel;
+    int iRhs;
+    int bHit = 0;
+
+    if( bLast ){
+      for(iRhs=0; iRhs<pLvl->nRight && rc==LSM_OK; iRhs++){
+        rc = segmentPtrEnd(pCsr, &pPtr[iRhs+1], 1);
+        if( pPtr[iRhs+1].pPg ) bHit = 1;
+      }
+      if( bHit==0 && rc==LSM_OK ){
+        rc = segmentPtrEnd(pCsr, pPtr, 1);
+      }else{
+        segmentPtrReset(pPtr, LSM_SEGMENTPTR_FREE_THRESHOLD);
+      }
+    }else{
+      int bLhs = (pPtr->pSeg==&pLvl->lhs);
+      assert( pPtr->pSeg==&pLvl->lhs || pPtr->pSeg==&pLvl->aRhs[0] );
+
+      if( bLhs ){
+        rc = segmentPtrEnd(pCsr, pPtr, 0);
+        if( pPtr->pKey ) bHit = 1;
+      }
+      for(iRhs=0; iRhs<pLvl->nRight && rc==LSM_OK; iRhs++){
+        if( bHit ){
+          segmentPtrReset(&pPtr[iRhs+1], LSM_SEGMENTPTR_FREE_THRESHOLD);
+        }else{
+          rc = sortedRhsFirst(pCsr, pLvl, &pPtr[iRhs+bLhs]);
+        }
+      }
+    }
+    i += pLvl->nRight;
+  }
+
+  /* And the b-tree cursor, if applicable */
+  if( rc==LSM_OK && pCsr->pBtCsr ){
+    assert( bLast==0 );
+    rc = btreeCursorFirst(pCsr->pBtCsr);
+  }
+
+  if( rc==LSM_OK ){
+    rc = multiCursorSetupTree(pCsr, bLast);
+  }
+  
+  return rc;
+}
+
+
+int mcursorSave(MultiCursor *pCsr){
+  int rc = LSM_OK;
+  if( pCsr->aTree ){
+    int iTree = pCsr->aTree[1];
+    if( iTree==CURSOR_DATA_TREE0 || iTree==CURSOR_DATA_TREE1 ){
+      multiCursorCacheKey(pCsr, &rc);
+    }
+  }
+  mcursorFreeComponents(pCsr);
+  return rc;
+}
+
+int mcursorRestore(lsm_db *pDb, MultiCursor *pCsr){
+  int rc;
+  rc = multiCursorInit(pCsr, pDb->pClient);
+  if( rc==LSM_OK && pCsr->key.pData ){
+    rc = lsmMCursorSeek(pCsr, 
+         rtTopic(pCsr->eType), pCsr->key.pData, pCsr->key.nData, +1
+    );
+  }
+  return rc;
+}
+
+int lsmSaveCursors(lsm_db *pDb){
+  int rc = LSM_OK;
+  MultiCursor *pCsr;
+
+  for(pCsr=pDb->pCsr; rc==LSM_OK && pCsr; pCsr=pCsr->pNext){
+    rc = mcursorSave(pCsr);
+  }
+  return rc;
+}
+
+int lsmRestoreCursors(lsm_db *pDb){
+  int rc = LSM_OK;
+  MultiCursor *pCsr;
+
+  for(pCsr=pDb->pCsr; rc==LSM_OK && pCsr; pCsr=pCsr->pNext){
+    rc = mcursorRestore(pDb, pCsr);
+  }
+  return rc;
+}
+
+int lsmMCursorFirst(MultiCursor *pCsr){
+  return multiCursorEnd(pCsr, 0);
+}
+
+int lsmMCursorLast(MultiCursor *pCsr){
+  return multiCursorEnd(pCsr, 1);
+}
+
+lsm_db *lsmMCursorDb(MultiCursor *pCsr){
+  return pCsr->pDb;
+}
+
+void lsmMCursorReset(MultiCursor *pCsr){
+  int i;
+  lsmTreeCursorReset(pCsr->apTreeCsr[0]);
+  lsmTreeCursorReset(pCsr->apTreeCsr[1]);
+  for(i=0; i<pCsr->nPtr; i++){
+    segmentPtrReset(&pCsr->aPtr[i], LSM_SEGMENTPTR_FREE_THRESHOLD);
+  }
+  pCsr->key.nData = 0;
+}
+
+static int treeCursorSeek(
+  MultiCursor *pCsr,
+  TreeCursor *pTreeCsr, 
+  void *pKey, int nKey, 
+  int eSeek,
+  int *pbStop
+){
+  int rc = LSM_OK;
+  if( pTreeCsr ){
+    int res = 0;
+    lsmTreeCursorSeek(pTreeCsr, pKey, nKey, &res);
+    switch( eSeek ){
+      case LSM_SEEK_EQ: {
+        int eType = lsmTreeCursorFlags(pTreeCsr);
+        if( (res<0 && (eType & LSM_START_DELETE))
+         || (res>0 && (eType & LSM_END_DELETE))
+         || (res==0 && (eType & LSM_POINT_DELETE))
+        ){
+          *pbStop = 1;
+        }else if( res==0 && (eType & LSM_INSERT) ){
+          lsm_env *pEnv = pCsr->pDb->pEnv;
+          void *p; int n;         /* Key/value from tree-cursor */
+          *pbStop = 1;
+          pCsr->flags |= CURSOR_SEEK_EQ;
+          rc = lsmTreeCursorKey(pTreeCsr, &pCsr->eType, &p, &n);
+          if( rc==LSM_OK ) rc = sortedBlobSet(pEnv, &pCsr->key, p, n);
+          if( rc==LSM_OK ) rc = lsmTreeCursorValue(pTreeCsr, &p, &n);
+          if( rc==LSM_OK ) rc = sortedBlobSet(pEnv, &pCsr->val, p, n);
+        }
+        lsmTreeCursorReset(pTreeCsr);
+        break;
+      }
+      case LSM_SEEK_GE:
+        if( res<0 && lsmTreeCursorValid(pTreeCsr) ){
+          lsmTreeCursorNext(pTreeCsr);
+        }
+        break;
+      default:
+        if( res>0 ){
+          assert( lsmTreeCursorValid(pTreeCsr) );
+          lsmTreeCursorPrev(pTreeCsr);
+        }
+        break;
+    }
+  }
+  return rc;
+}
+
+
+/*
+** Seek the cursor.
+*/
+int lsmMCursorSeek(
+  MultiCursor *pCsr, 
+  int iTopic, 
+  void *pKey, int nKey, 
+  int eSeek
+){
+  int eESeek = eSeek;             /* Effective eSeek parameter */
+  int bStop = 0;                  /* Set to true to halt search operation */
+  int rc = LSM_OK;                /* Return code */
+  int iPtr = 0;                   /* Used to iterate through pCsr->aPtr[] */
+  LsmPgno iPgno = 0;              /* FC pointer value */
+
+  assert( pCsr->apTreeCsr[0]==0 || iTopic==0 );
+  assert( pCsr->apTreeCsr[1]==0 || iTopic==0 );
+
+  if( eESeek==LSM_SEEK_LEFAST ) eESeek = LSM_SEEK_LE;
+
+  assert( eESeek==LSM_SEEK_EQ || eESeek==LSM_SEEK_LE || eESeek==LSM_SEEK_GE );
+  assert( (pCsr->flags & CURSOR_FLUSH_FREELIST)==0 );
+  assert( pCsr->nPtr==0 || pCsr->aPtr[0].pLevel );
+
+  pCsr->flags &= ~(CURSOR_NEXT_OK | CURSOR_PREV_OK | CURSOR_SEEK_EQ);
+  rc = treeCursorSeek(pCsr, pCsr->apTreeCsr[0], pKey, nKey, eESeek, &bStop);
+  if( rc==LSM_OK && bStop==0 ){
+    rc = treeCursorSeek(pCsr, pCsr->apTreeCsr[1], pKey, nKey, eESeek, &bStop);
+  }
+
+  /* Seek all segment pointers. */
+  for(iPtr=0; iPtr<pCsr->nPtr && rc==LSM_OK && bStop==0; iPtr++){
+    SegmentPtr *pPtr = &pCsr->aPtr[iPtr];
+    assert( pPtr->pSeg==&pPtr->pLevel->lhs );
+    rc = seekInLevel(pCsr, pPtr, eESeek, iTopic, pKey, nKey, &iPgno, &bStop);
+    iPtr += pPtr->pLevel->nRight;
+  }
+
+  if( eSeek!=LSM_SEEK_EQ ){
+    if( rc==LSM_OK ){
+      rc = multiCursorAllocTree(pCsr);
+    }
+    if( rc==LSM_OK ){
+      int i;
+      for(i=pCsr->nTree-1; i>0; i--){
+        multiCursorDoCompare(pCsr, i, eESeek==LSM_SEEK_LE);
+      }
+      if( eSeek==LSM_SEEK_GE ) pCsr->flags |= CURSOR_NEXT_OK;
+      if( eSeek==LSM_SEEK_LE ) pCsr->flags |= CURSOR_PREV_OK;
+    }
+
+    multiCursorCacheKey(pCsr, &rc);
+    if( rc==LSM_OK && eSeek!=LSM_SEEK_LEFAST && 0==mcursorLocationOk(pCsr, 0) ){
+      switch( eESeek ){
+        case LSM_SEEK_EQ:
+          lsmMCursorReset(pCsr);
+          break;
+        case LSM_SEEK_GE:
+          rc = lsmMCursorNext(pCsr);
+          break;
+        default:
+          rc = lsmMCursorPrev(pCsr);
+          break;
+      }
+    }
+  }
+
+  return rc;
+}
+
+int lsmMCursorValid(MultiCursor *pCsr){
+  int res = 0;
+  if( pCsr->flags & CURSOR_SEEK_EQ ){
+    res = 1;
+  }else if( pCsr->aTree ){
+    int iKey = pCsr->aTree[1];
+    if( iKey==CURSOR_DATA_TREE0 || iKey==CURSOR_DATA_TREE1 ){
+      res = lsmTreeCursorValid(pCsr->apTreeCsr[iKey-CURSOR_DATA_TREE0]);
+    }else{
+      void *pKey; 
+      multiCursorGetKey(pCsr, iKey, 0, &pKey, 0);
+      res = pKey!=0;
+    }
+  }
+  return res;
+}
+
+static int mcursorAdvanceOk(
+  MultiCursor *pCsr, 
+  int bReverse,
+  int *pRc
+){
+  void *pNew;                     /* Pointer to buffer containing new key */
+  int nNew;                       /* Size of buffer pNew in bytes */
+  int eNewType;                   /* Type of new record */
+
+  if( *pRc ) return 1;
+
+  /* Check the current key value. If it is not greater than (if bReverse==0)
+  ** or less than (if bReverse!=0) the key currently cached in pCsr->key, 
+  ** then the cursor has not yet been successfully advanced.  
+  */
+  multiCursorGetKey(pCsr, pCsr->aTree[1], &eNewType, &pNew, &nNew);
+  if( pNew ){
+    int typemask = (pCsr->flags & CURSOR_IGNORE_DELETE) ? ~(0) : LSM_SYSTEMKEY;
+    int res = sortedDbKeyCompare(pCsr,
+      eNewType & typemask, pNew, nNew, 
+      pCsr->eType & typemask, pCsr->key.pData, pCsr->key.nData
+    );
+
+    if( (bReverse==0 && res<=0) || (bReverse!=0 && res>=0) ){
+      return 0;
+    }
+
+    multiCursorCacheKey(pCsr, pRc);
+    assert( pCsr->eType==eNewType );
+
+    /* If this cursor is configured to skip deleted keys, and the current
+    ** cursor points to a SORTED_DELETE entry, then the cursor has not been 
+    ** successfully advanced.  
+    **
+    ** Similarly, if the cursor is configured to skip system keys and the
+    ** current cursor points to a system key, it has not yet been advanced.
+    */
+    if( *pRc==LSM_OK && 0==mcursorLocationOk(pCsr, 0) ) return 0;
+  }
+  return 1;
+}
+
+static void flCsrAdvance(MultiCursor *pCsr){
+  assert( pCsr->flags & CURSOR_FLUSH_FREELIST );
+  if( pCsr->iFree % 2 ){
+    pCsr->iFree++;
+  }else{
+    int nEntry = pCsr->pDb->pWorker->freelist.nEntry;
+    FreelistEntry *aEntry = pCsr->pDb->pWorker->freelist.aEntry;
+
+    int i = nEntry - 1 - (pCsr->iFree / 2);
+
+    /* If the current entry is a delete and the "end-delete" key will not
+    ** be attached to the next entry, increment iFree by 1 only. */
+    if( aEntry[i].iId<0 ){
+      while( 1 ){
+        if( i==0 || aEntry[i-1].iBlk!=aEntry[i].iBlk-1 ){
+          pCsr->iFree--;
+          break;
+        }
+        if( aEntry[i-1].iId>=0 ) break;
+        pCsr->iFree += 2;
+        i--;
+      }
+    }
+    pCsr->iFree += 2;
+  }
+}
+
+static int multiCursorAdvance(MultiCursor *pCsr, int bReverse){
+  int rc = LSM_OK;                /* Return Code */
+  if( lsmMCursorValid(pCsr) ){
+    do {
+      int iKey = pCsr->aTree[1];
+
+      assertCursorTree(pCsr);
+
+      /* If this multi-cursor is advancing forwards, and the sub-cursor
+      ** being advanced is the one that separator keys may be being read
+      ** from, record the current absolute pointer value.  */
+      if( pCsr->pPrevMergePtr ){
+        if( iKey==(CURSOR_DATA_SEGMENT+pCsr->nPtr) ){
+          assert( pCsr->pBtCsr );
+          *pCsr->pPrevMergePtr = pCsr->pBtCsr->iPtr;
+        }else if( pCsr->pBtCsr==0 && pCsr->nPtr>0
+               && iKey==(CURSOR_DATA_SEGMENT+pCsr->nPtr-1) 
+        ){
+          SegmentPtr *pPtr = &pCsr->aPtr[iKey-CURSOR_DATA_SEGMENT];
+          *pCsr->pPrevMergePtr = pPtr->iPtr+pPtr->iPgPtr;
+        }
+      }
+
+      if( iKey==CURSOR_DATA_TREE0 || iKey==CURSOR_DATA_TREE1 ){
+        TreeCursor *pTreeCsr = pCsr->apTreeCsr[iKey-CURSOR_DATA_TREE0];
+        if( bReverse ){
+          rc = lsmTreeCursorPrev(pTreeCsr);
+        }else{
+          rc = lsmTreeCursorNext(pTreeCsr);
+        }
+      }else if( iKey==CURSOR_DATA_SYSTEM ){
+        assert( pCsr->flags & CURSOR_FLUSH_FREELIST );
+        assert( bReverse==0 );
+        flCsrAdvance(pCsr);
+      }else if( iKey==(CURSOR_DATA_SEGMENT+pCsr->nPtr) ){
+        assert( bReverse==0 && pCsr->pBtCsr );
+        rc = btreeCursorNext(pCsr->pBtCsr);
+      }else{
+        rc = segmentCursorAdvance(pCsr, iKey-CURSOR_DATA_SEGMENT, bReverse);
+      }
+      if( rc==LSM_OK ){
+        int i;
+        for(i=(iKey+pCsr->nTree)/2; i>0; i=i/2){
+          multiCursorDoCompare(pCsr, i, bReverse);
+        }
+        assertCursorTree(pCsr);
+      }
+    }while( mcursorAdvanceOk(pCsr, bReverse, &rc)==0 );
+  }
+  return rc;
+}
+
+int lsmMCursorNext(MultiCursor *pCsr){
+  if( (pCsr->flags & CURSOR_NEXT_OK)==0 ) return LSM_MISUSE_BKPT;
+  return multiCursorAdvance(pCsr, 0);
+}
+
+int lsmMCursorPrev(MultiCursor *pCsr){
+  if( (pCsr->flags & CURSOR_PREV_OK)==0 ) return LSM_MISUSE_BKPT;
+  return multiCursorAdvance(pCsr, 1);
+}
+
+int lsmMCursorKey(MultiCursor *pCsr, void **ppKey, int *pnKey){
+  if( (pCsr->flags & CURSOR_SEEK_EQ) || pCsr->aTree==0 ){
+    *pnKey = pCsr->key.nData;
+    *ppKey = pCsr->key.pData;
+  }else{
+    int iKey = pCsr->aTree[1];
+
+    if( iKey==CURSOR_DATA_TREE0 || iKey==CURSOR_DATA_TREE1 ){
+      TreeCursor *pTreeCsr = pCsr->apTreeCsr[iKey-CURSOR_DATA_TREE0];
+      lsmTreeCursorKey(pTreeCsr, 0, ppKey, pnKey);
+    }else{
+      int nKey;
+
+#ifndef NDEBUG
+      void *pKey;
+      int eType;
+      multiCursorGetKey(pCsr, iKey, &eType, &pKey, &nKey);
+      assert( eType==pCsr->eType );
+      assert( nKey==pCsr->key.nData );
+      assert( memcmp(pKey, pCsr->key.pData, nKey)==0 );
+#endif
+
+      nKey = pCsr->key.nData;
+      if( nKey==0 ){
+        *ppKey = 0;
+      }else{
+        *ppKey = pCsr->key.pData;
+      }
+      *pnKey = nKey; 
+    }
+  }
+  return LSM_OK;
+}
+
+/*
+** Compare the current key that cursor csr points to with pKey/nKey. Set
+** *piRes to the result and return LSM_OK.
+*/
+int lsm_csr_cmp(lsm_cursor *csr, const void *pKey, int nKey, int *piRes){
+  MultiCursor *pCsr = (MultiCursor *)csr;
+  void *pCsrkey; int nCsrkey;
+  int rc;
+  rc = lsmMCursorKey(pCsr, &pCsrkey, &nCsrkey);
+  if( rc==LSM_OK ){
+    int (*xCmp)(void *, int, void *, int) = pCsr->pDb->xCmp;
+    *piRes = sortedKeyCompare(xCmp, 0, pCsrkey, nCsrkey, 0, (void *)pKey, nKey);
+  }
+  return rc;
+}
+
+int lsmMCursorValue(MultiCursor *pCsr, void **ppVal, int *pnVal){
+  void *pVal;
+  int nVal;
+  int rc;
+  if( (pCsr->flags & CURSOR_SEEK_EQ) || pCsr->aTree==0 ){
+    rc = LSM_OK;
+    nVal = pCsr->val.nData;
+    pVal = pCsr->val.pData;
+  }else{
+
+    assert( pCsr->aTree );
+    assert( mcursorLocationOk(pCsr, (pCsr->flags & CURSOR_IGNORE_DELETE)) );
+
+    rc = multiCursorGetVal(pCsr, pCsr->aTree[1], &pVal, &nVal);
+    if( pVal && rc==LSM_OK ){
+      rc = sortedBlobSet(pCsr->pDb->pEnv, &pCsr->val, pVal, nVal);
+      pVal = pCsr->val.pData;
+    }
+
+    if( rc!=LSM_OK ){
+      pVal = 0;
+      nVal = 0;
+    }
+  }
+  *ppVal = pVal;
+  *pnVal = nVal;
+  return rc;
+}
+
+int lsmMCursorType(MultiCursor *pCsr, int *peType){
+  assert( pCsr->aTree );
+  multiCursorGetKey(pCsr, pCsr->aTree[1], peType, 0, 0);
+  return LSM_OK;
+}
+
+/*
+** Buffer aData[], size nData, is assumed to contain a valid b-tree 
+** hierarchy page image. Return the offset in aData[] of the next free
+** byte in the data area (where a new cell may be written if there is
+** space).
+*/
+static int mergeWorkerPageOffset(u8 *aData, int nData){
+  int nRec;
+  int iOff;
+  int nKey;
+  int eType;
+  i64 nDummy;
+
+
+  nRec = lsmGetU16(&aData[SEGMENT_NRECORD_OFFSET(nData)]);
+  iOff = lsmGetU16(&aData[SEGMENT_CELLPTR_OFFSET(nData, nRec-1)]);
+  eType = aData[iOff++];
+  assert( eType==0 
+       || eType==(LSM_SYSTEMKEY|LSM_SEPARATOR) 
+       || eType==(LSM_SEPARATOR)
+  );
+
+  iOff += lsmVarintGet64(&aData[iOff], &nDummy);
+  iOff += lsmVarintGet32(&aData[iOff], &nKey);
+
+  return iOff + (eType ? nKey : 0);
+}
+
+/*
+** Following a checkpoint operation, database pages that are part of the
+** checkpointed state of the LSM are deemed read-only. This includes the
+** right-most page of the b-tree hierarchy of any separators array under
+** construction, and all pages between it and the b-tree root, inclusive.
+** This is a problem, as when further pages are appended to the separators
+** array, entries must be added to the indicated b-tree hierarchy pages.
+**
+** This function copies all such b-tree pages to new locations, so that
+** they can be modified as required.
+**
+** The complication is that not all database pages are the same size - due
+** to the way the file.c module works some (the first and last in each block)
+** are 4 bytes smaller than the others.
+*/
+static int mergeWorkerMoveHierarchy(
+  MergeWorker *pMW,               /* Merge worker */
+  int bSep                        /* True for separators run */
+){
+  lsm_db *pDb = pMW->pDb;         /* Database handle */
+  int rc = LSM_OK;                /* Return code */
+  int i;
+  Page **apHier = pMW->hier.apHier;
+  int nHier = pMW->hier.nHier;
+
+  for(i=0; rc==LSM_OK && i<nHier; i++){
+    Page *pNew = 0;
+    rc = lsmFsSortedAppend(pDb->pFS, pDb->pWorker, pMW->pLevel, 1, &pNew);
+    assert( rc==LSM_OK );
+
+    if( rc==LSM_OK ){
+      u8 *a1; int n1;
+      u8 *a2; int n2;
+
+      a1 = fsPageData(pNew, &n1);
+      a2 = fsPageData(apHier[i], &n2);
+
+      assert( n1==n2 || n1+4==n2 );
+
+      if( n1==n2 ){
+        memcpy(a1, a2, n2);
+      }else{
+        int nEntry = pageGetNRec(a2, n2);
+        int iEof1 = SEGMENT_EOF(n1, nEntry);
+        int iEof2 = SEGMENT_EOF(n2, nEntry);
+
+        memcpy(a1, a2, iEof2 - 4);
+        memcpy(&a1[iEof1], &a2[iEof2], n2 - iEof2);
+      }
+
+      lsmFsPageRelease(apHier[i]);
+      apHier[i] = pNew;
+
+#if 0
+      assert( n1==n2 || n1+4==n2 || n2+4==n1 );
+      if( n1>=n2 ){
+        /* If n1 (size of the new page) is equal to or greater than n2 (the
+        ** size of the old page), then copy the data into the new page. If
+        ** n1==n2, this could be done with a single memcpy(). However, 
+        ** since sometimes n1>n2, the page content and footer must be copied 
+        ** separately. */
+        int nEntry = pageGetNRec(a2, n2);
+        int iEof1 = SEGMENT_EOF(n1, nEntry);
+        int iEof2 = SEGMENT_EOF(n2, nEntry);
+        memcpy(a1, a2, iEof2);
+        memcpy(&a1[iEof1], &a2[iEof2], n2 - iEof2);
+        lsmFsPageRelease(apHier[i]);
+        apHier[i] = pNew;
+      }else{
+        lsmPutU16(&a1[SEGMENT_FLAGS_OFFSET(n1)], SEGMENT_BTREE_FLAG);
+        lsmPutU16(&a1[SEGMENT_NRECORD_OFFSET(n1)], 0);
+        lsmPutU64(&a1[SEGMENT_POINTER_OFFSET(n1)], 0);
+        i = i - 1;
+        lsmFsPageRelease(pNew);
+      }
+#endif
+    }
+  }
+
+#ifdef LSM_DEBUG
+  if( rc==LSM_OK ){
+    for(i=0; i<nHier; i++) assert( lsmFsPageWritable(apHier[i]) );
+  }
+#endif
+
+  return rc;
+}
+
+/*
+** Allocate and populate the MergeWorker.apHier[] array.
+*/
+static int mergeWorkerLoadHierarchy(MergeWorker *pMW){
+  int rc = LSM_OK;
+  Segment *pSeg;
+  Hierarchy *p;
+ 
+  pSeg = &pMW->pLevel->lhs;
+  p = &pMW->hier;
+
+  if( p->apHier==0 && pSeg->iRoot!=0 ){
+    FileSystem *pFS = pMW->pDb->pFS;
+    lsm_env *pEnv = pMW->pDb->pEnv;
+    Page **apHier = 0;
+    int nHier = 0;
+    LsmPgno iPg = pSeg->iRoot;
+
+    do {
+      Page *pPg = 0;
+      u8 *aData;
+      int nData;
+      int flags;
+
+      rc = lsmFsDbPageGet(pFS, pSeg, iPg, &pPg);
+      if( rc!=LSM_OK ) break;
+
+      aData = fsPageData(pPg, &nData);
+      flags = pageGetFlags(aData, nData);
+      if( flags&SEGMENT_BTREE_FLAG ){
+        Page **apNew = (Page **)lsmRealloc(
+            pEnv, apHier, sizeof(Page *)*(nHier+1)
+        );
+        if( apNew==0 ){
+          rc = LSM_NOMEM_BKPT;
+          break;
+        }
+        apHier = apNew;
+        memmove(&apHier[1], &apHier[0], sizeof(Page *) * nHier);
+        nHier++;
+
+        apHier[0] = pPg;
+        iPg = pageGetPtr(aData, nData);
+      }else{
+        lsmFsPageRelease(pPg);
+        break;
+      }
+    }while( 1 );
+
+    if( rc==LSM_OK ){
+      u8 *aData;
+      int nData;
+      aData = fsPageData(apHier[0], &nData);
+      pMW->aSave[0].iPgno = pageGetPtr(aData, nData);
+      p->nHier = nHier;
+      p->apHier = apHier;
+      rc = mergeWorkerMoveHierarchy(pMW, 0);
+    }else{
+      int i;
+      for(i=0; i<nHier; i++){
+        lsmFsPageRelease(apHier[i]);
+      }
+      lsmFree(pEnv, apHier);
+    }
+  }
+
+  return rc;
+}
+
+/*
+** B-tree pages use almost the same format as regular pages. The 
+** differences are:
+**
+**   1. The record format is (usually, see below) as follows:
+**
+**         + Type byte (always SORTED_SEPARATOR or SORTED_SYSTEM_SEPARATOR),
+**         + Absolute pointer value (varint),
+**         + Number of bytes in key (varint),
+**         + LsmBlob containing key data.
+**
+**   2. All pointer values are stored as absolute values (not offsets 
+**      relative to the footer pointer value).
+**
+**   3. Each pointer that is part of a record points to a page that 
+**      contains keys smaller than the records key (note: not "equal to or
+**      smaller than - smaller than").
+**
+**   4. The pointer in the page footer of a b-tree page points to a page
+**      that contains keys equal to or larger than the largest key on the
+**      b-tree page.
+**
+** The reason for having the page footer pointer point to the right-child
+** (instead of the left) is that doing things this way makes the 
+** mergeWorkerMoveHierarchy() operation less complicated (since the pointers 
+** that need to be updated are all stored as fixed-size integers within the 
+** page footer, not varints in page records).
+**
+** Records may not span b-tree pages. If this function is called to add a
+** record larger than (page-size / 4) bytes, then a pointer to the indexed
+** array page that contains the main record is added to the b-tree instead.
+** In this case the record format is:
+**
+**         + 0x00 byte (1 byte) 
+**         + Absolute pointer value (varint),
+**         + Absolute page number of page containing key (varint).
+**
+** See function seekInBtree() for the code that traverses b-tree pages.
+*/
+
+static int mergeWorkerBtreeWrite(
+  MergeWorker *pMW,
+  u8 eType,
+  LsmPgno iPtr,
+  LsmPgno iKeyPg,
+  void *pKey,
+  int nKey
+){
+  Hierarchy *p = &pMW->hier;
+  lsm_db *pDb = pMW->pDb;         /* Database handle */
+  int rc = LSM_OK;                /* Return Code */
+  int iLevel;                     /* Level of b-tree hierachy to write to */
+  int nData;                      /* Size of aData[] in bytes */
+  u8 *aData;                      /* Page data for level iLevel */
+  int iOff;                       /* Offset on b-tree page to write record to */
+  int nRec;                       /* Initial number of records on b-tree page */
+
+  /* iKeyPg should be zero for an ordinary b-tree key, or non-zero for an
+  ** indirect key. The flags byte for an indirect key is 0x00.  */
+  assert( (eType==0)==(iKeyPg!=0) );
+
+  /* The MergeWorker.apHier[] array contains the right-most leaf of the b-tree
+  ** hierarchy, the root node, and all nodes that lie on the path between.
+  ** apHier[0] is the right-most leaf and apHier[pMW->nHier-1] is the current
+  ** root page.
+  **
+  ** This loop searches for a node with enough space to store the key on,
+  ** starting with the leaf and iterating up towards the root. When the loop
+  ** exits, the key may be written to apHier[iLevel].  */
+  for(iLevel=0; iLevel<=p->nHier; iLevel++){
+    int nByte;                    /* Number of free bytes required */
+
+    if( iLevel==p->nHier ){
+      /* Extend the array and allocate a new root page. */
+      Page **aNew;
+      aNew = (Page **)lsmRealloc(
+          pMW->pDb->pEnv, p->apHier, sizeof(Page *)*(p->nHier+1)
+      );
+      if( !aNew ){
+        return LSM_NOMEM_BKPT;
+      }
+      p->apHier = aNew;
+    }else{
+      Page *pOld;
+      int nFree;
+
+      /* If the key will fit on this page, break out of the loop here.
+      ** The new entry will be written to page apHier[iLevel]. */
+      pOld = p->apHier[iLevel];
+      assert( lsmFsPageWritable(pOld) );
+      aData = fsPageData(pOld, &nData);
+      if( eType==0 ){
+        nByte = 2 + 1 + lsmVarintLen64(iPtr) + lsmVarintLen64(iKeyPg);
+      }else{
+        nByte = 2 + 1 + lsmVarintLen64(iPtr) + lsmVarintLen32(nKey) + nKey;
+      }
+
+      nRec = pageGetNRec(aData, nData);
+      nFree = SEGMENT_EOF(nData, nRec) - mergeWorkerPageOffset(aData, nData);
+      if( nByte<=nFree ) break;
+
+      /* Otherwise, this page is full. Set the right-hand-child pointer
+      ** to iPtr and release it.  */
+      lsmPutU64(&aData[SEGMENT_POINTER_OFFSET(nData)], iPtr);
+      assert( lsmFsPageNumber(pOld)==0 );
+      rc = lsmFsPagePersist(pOld);
+      if( rc==LSM_OK ){
+        iPtr = lsmFsPageNumber(pOld);
+        lsmFsPageRelease(pOld);
+      }
+    }
+
+    /* Allocate a new page for apHier[iLevel]. */
+    p->apHier[iLevel] = 0;
+    if( rc==LSM_OK ){
+      rc = lsmFsSortedAppend(
+          pDb->pFS, pDb->pWorker, pMW->pLevel, 1, &p->apHier[iLevel]
+      );
+    }
+    if( rc!=LSM_OK ) return rc;
+
+    aData = fsPageData(p->apHier[iLevel], &nData);
+    memset(aData, 0, nData);
+    lsmPutU16(&aData[SEGMENT_FLAGS_OFFSET(nData)], SEGMENT_BTREE_FLAG);
+    lsmPutU16(&aData[SEGMENT_NRECORD_OFFSET(nData)], 0);
+
+    if( iLevel==p->nHier ){
+      p->nHier++;
+      break;
+    }
+  }
+
+  /* Write the key into page apHier[iLevel]. */
+  aData = fsPageData(p->apHier[iLevel], &nData);
+  iOff = mergeWorkerPageOffset(aData, nData);
+  nRec = pageGetNRec(aData, nData);
+  lsmPutU16(&aData[SEGMENT_CELLPTR_OFFSET(nData, nRec)], (u16)iOff);
+  lsmPutU16(&aData[SEGMENT_NRECORD_OFFSET(nData)], (u16)(nRec+1));
+  if( eType==0 ){
+    aData[iOff++] = 0x00;
+    iOff += lsmVarintPut64(&aData[iOff], iPtr);
+    iOff += lsmVarintPut64(&aData[iOff], iKeyPg);
+  }else{
+    aData[iOff++] = eType;
+    iOff += lsmVarintPut64(&aData[iOff], iPtr);
+    iOff += lsmVarintPut32(&aData[iOff], nKey);
+    memcpy(&aData[iOff], pKey, nKey);
+  }
+
+  return rc;
+}
+
+static int mergeWorkerBtreeIndirect(MergeWorker *pMW){
+  int rc = LSM_OK;
+  if( pMW->iIndirect ){
+    LsmPgno iKeyPg = pMW->aSave[1].iPgno;
+    rc = mergeWorkerBtreeWrite(pMW, 0, pMW->iIndirect, iKeyPg, 0, 0);
+    pMW->iIndirect = 0;
+  }
+  return rc;
+}
+
+/*
+** Append the database key (iTopic/pKey/nKey) to the b-tree under 
+** construction. This key has not yet been written to a segment page.
+** The pointer that will accompany the new key in the b-tree - that
+** points to the completed segment page that contains keys smaller than
+** (pKey/nKey) is currently stored in pMW->aSave[0].iPgno.
+*/
+static int mergeWorkerPushHierarchy(
+  MergeWorker *pMW,               /* Merge worker object */
+  int iTopic,                     /* Topic value for this key */
+  void *pKey,                     /* Pointer to key buffer */
+  int nKey                        /* Size of pKey buffer in bytes */
+){
+  int rc = LSM_OK;                /* Return Code */
+  LsmPgno iPtr;                   /* Pointer value to accompany pKey/nKey */
+
+  assert( pMW->aSave[0].bStore==0 );
+  assert( pMW->aSave[1].bStore==0 );
+  rc = mergeWorkerBtreeIndirect(pMW);
+
+  /* Obtain the absolute pointer value to store along with the key in the
+  ** page body. This pointer points to a page that contains keys that are
+  ** smaller than pKey/nKey.  */
+  iPtr = pMW->aSave[0].iPgno;
+  assert( iPtr!=0 );
+
+  /* Determine if the indirect format should be used. */
+  if( (nKey*4 > lsmFsPageSize(pMW->pDb->pFS)) ){
+    pMW->iIndirect = iPtr;
+    pMW->aSave[1].bStore = 1;
+  }else{
+    rc = mergeWorkerBtreeWrite(
+        pMW, (u8)(iTopic | LSM_SEPARATOR), iPtr, 0, pKey, nKey
+    );
+  }
+
+  /* Ensure that the SortedRun.iRoot field is correct. */
+  return rc;
+}
+
+static int mergeWorkerFinishHierarchy(
+  MergeWorker *pMW                /* Merge worker object */
+){
+  int i;                          /* Used to loop through apHier[] */
+  int rc = LSM_OK;                /* Return code */
+  LsmPgno iPtr;                   /* New right-hand-child pointer value */
+
+  iPtr = pMW->aSave[0].iPgno;
+  for(i=0; i<pMW->hier.nHier && rc==LSM_OK; i++){
+    Page *pPg = pMW->hier.apHier[i];
+    int nData;                    /* Size of aData[] in bytes */
+    u8 *aData;                    /* Page data for pPg */
+
+    aData = fsPageData(pPg, &nData);
+    lsmPutU64(&aData[SEGMENT_POINTER_OFFSET(nData)], iPtr);
+
+    rc = lsmFsPagePersist(pPg);
+    iPtr = lsmFsPageNumber(pPg);
+    lsmFsPageRelease(pPg);
+  }
+
+  if( pMW->hier.nHier ){
+    pMW->pLevel->lhs.iRoot = iPtr;
+    lsmFree(pMW->pDb->pEnv, pMW->hier.apHier);
+    pMW->hier.apHier = 0;
+    pMW->hier.nHier = 0;
+  }
+
+  return rc;
+}
+
+static int mergeWorkerAddPadding(
+  MergeWorker *pMW                /* Merge worker object */
+){
+  FileSystem *pFS = pMW->pDb->pFS;
+  return lsmFsSortedPadding(pFS, pMW->pDb->pWorker, &pMW->pLevel->lhs);
+}
+
+/*
+** Release all page references currently held by the merge-worker passed
+** as the only argument. Unless an error has occurred, all pages have
+** already been released.
+*/
+static void mergeWorkerReleaseAll(MergeWorker *pMW){
+  int i;
+  lsmFsPageRelease(pMW->pPage);
+  pMW->pPage = 0;
+
+  for(i=0; i<pMW->hier.nHier; i++){
+    lsmFsPageRelease(pMW->hier.apHier[i]);
+    pMW->hier.apHier[i] = 0;
+  }
+  lsmFree(pMW->pDb->pEnv, pMW->hier.apHier);
+  pMW->hier.apHier = 0;
+  pMW->hier.nHier = 0;
+}
+
+static int keyszToSkip(FileSystem *pFS, int nKey){
+  int nPgsz;                /* Nominal database page size */
+  nPgsz = lsmFsPageSize(pFS);
+  return LSM_MIN(((nKey * 4) / nPgsz), 3);
+}
+
+/*
+** Release the reference to the current output page of merge-worker *pMW
+** (reference pMW->pPage). Set the page number values in aSave[] as 
+** required (see comments above struct MergeWorker for details).
+*/
+static int mergeWorkerPersistAndRelease(MergeWorker *pMW){
+  int rc;
+  int i;
+
+  assert( pMW->pPage || (pMW->aSave[0].bStore==0 && pMW->aSave[1].bStore==0) );
+
+  /* Persist the page */
+  rc = lsmFsPagePersist(pMW->pPage);
+
+  /* If required, save the page number. */
+  for(i=0; i<2; i++){
+    if( pMW->aSave[i].bStore ){
+      pMW->aSave[i].iPgno = lsmFsPageNumber(pMW->pPage);
+      pMW->aSave[i].bStore = 0;
+    }
+  }
+
+  /* Release the completed output page. */
+  lsmFsPageRelease(pMW->pPage);
+  pMW->pPage = 0;
+  return rc;
+}
+
+/*
+** Advance to the next page of an output run being populated by merge-worker
+** pMW. The footer of the new page is initialized to indicate that it contains
+** zero records. The flags field is cleared. The page footer pointer field
+** is set to iFPtr.
+**
+** If successful, LSM_OK is returned. Otherwise, an error code.
+*/
+static int mergeWorkerNextPage(
+  MergeWorker *pMW,               /* Merge worker object to append page to */
+  LsmPgno iFPtr                   /* Pointer value for footer of new page */
+){
+  int rc = LSM_OK;                /* Return code */
+  Page *pNext = 0;                /* New page appended to run */
+  lsm_db *pDb = pMW->pDb;         /* Database handle */
+
+  rc = lsmFsSortedAppend(pDb->pFS, pDb->pWorker, pMW->pLevel, 0, &pNext);
+  assert( rc || pMW->pLevel->lhs.iFirst>0 || pMW->pDb->compress.xCompress );
+
+  if( rc==LSM_OK ){
+    u8 *aData;                    /* Data buffer belonging to page pNext */
+    int nData;                    /* Size of aData[] in bytes */
+
+    rc = mergeWorkerPersistAndRelease(pMW);
+
+    pMW->pPage = pNext;
+    pMW->pLevel->pMerge->iOutputOff = 0;
+    aData = fsPageData(pNext, &nData);
+    lsmPutU16(&aData[SEGMENT_NRECORD_OFFSET(nData)], 0);
+    lsmPutU16(&aData[SEGMENT_FLAGS_OFFSET(nData)], 0);
+    lsmPutU64(&aData[SEGMENT_POINTER_OFFSET(nData)], iFPtr);
+    pMW->nWork++;
+  }
+
+  return rc;
+}
+
+/*
+** Write a blob of data into an output segment being populated by a 
+** merge-worker object. If argument bSep is true, write into the separators
+** array. Otherwise, the main array.
+**
+** This function is used to write the blobs of data for keys and values.
+*/
+static int mergeWorkerData(
+  MergeWorker *pMW,               /* Merge worker object */
+  int bSep,                       /* True to write to separators run */
+  LsmPgno iFPtr,                  /* Footer ptr for new pages */
+  u8 *aWrite,                     /* Write data from this buffer */
+  int nWrite                      /* Size of aWrite[] in bytes */
+){
+  int rc = LSM_OK;                /* Return code */
+  int nRem = nWrite;              /* Number of bytes still to write */
+
+  while( rc==LSM_OK && nRem>0 ){
+    Merge *pMerge = pMW->pLevel->pMerge;
+    int nCopy;                    /* Number of bytes to copy */
+    u8 *aData;                    /* Pointer to buffer of current output page */
+    int nData;                    /* Size of aData[] in bytes */
+    int nRec;                     /* Number of records on current output page */
+    int iOff;                     /* Offset in aData[] to write to */
+
+    assert( lsmFsPageWritable(pMW->pPage) );
+   
+    aData = fsPageData(pMW->pPage, &nData);
+    nRec = pageGetNRec(aData, nData);
+    iOff = pMerge->iOutputOff;
+    nCopy = LSM_MIN(nRem, SEGMENT_EOF(nData, nRec) - iOff);
+
+    memcpy(&aData[iOff], &aWrite[nWrite-nRem], nCopy);
+    nRem -= nCopy;
+
+    if( nRem>0 ){
+      rc = mergeWorkerNextPage(pMW, iFPtr);
+    }else{
+      pMerge->iOutputOff = iOff + nCopy;
+    }
+  }
+
+  return rc;
+}
+
+
+/*
+** The MergeWorker passed as the only argument is working to merge two or
+** more existing segments together (not to flush an in-memory tree). It
+** has not yet written the first key to the first page of the output.
+*/
+static int mergeWorkerFirstPage(MergeWorker *pMW){
+  int rc = LSM_OK;                /* Return code */
+  Page *pPg = 0;                  /* First page of run pSeg */
+  LsmPgno iFPtr = 0;              /* Pointer value read from footer of pPg */
+  MultiCursor *pCsr = pMW->pCsr;
+
+  assert( pMW->pPage==0 );
+
+  if( pCsr->pBtCsr ){
+    rc = LSM_OK;
+    iFPtr = pMW->pLevel->pNext->lhs.iFirst;
+  }else if( pCsr->nPtr>0 ){
+    Segment *pSeg;
+    pSeg = pCsr->aPtr[pCsr->nPtr-1].pSeg;
+    rc = lsmFsDbPageGet(pMW->pDb->pFS, pSeg, pSeg->iFirst, &pPg);
+    if( rc==LSM_OK ){
+      u8 *aData;                    /* Buffer for page pPg */
+      int nData;                    /* Size of aData[] in bytes */
+      aData = fsPageData(pPg, &nData);
+      iFPtr = pageGetPtr(aData, nData);
+      lsmFsPageRelease(pPg);
+    }
+  }
+
+  if( rc==LSM_OK ){
+    rc = mergeWorkerNextPage(pMW, iFPtr);
+    if( pCsr->pPrevMergePtr ) *pCsr->pPrevMergePtr = iFPtr;
+    pMW->aSave[0].bStore = 1;
+  }
+
+  return rc;
+}
+
+static int mergeWorkerWrite(
+  MergeWorker *pMW,               /* Merge worker object to write into */
+  int eType,                      /* One of SORTED_SEPARATOR, WRITE or DELETE */
+  void *pKey, int nKey,           /* Key value */
+  void *pVal, int nVal,           /* Value value */
+  LsmPgno iPtr                    /* Absolute value of page pointer, or 0 */
+){
+  int rc = LSM_OK;                /* Return code */
+  Merge *pMerge;                  /* Persistent part of level merge state */
+  int nHdr;                       /* Space required for this record header */
+  Page *pPg;                      /* Page to write to */
+  u8 *aData;                      /* Data buffer for page pWriter->pPage */
+  int nData = 0;                  /* Size of buffer aData[] in bytes */
+  int nRec = 0;                   /* Number of records on page pPg */
+  LsmPgno iFPtr = 0;              /* Value of pointer in footer of pPg */
+  LsmPgno iRPtr = 0;              /* Value of pointer written into record */
+  int iOff = 0;                   /* Current write offset within page pPg */
+  Segment *pSeg;                  /* Segment being written */
+  int flags = 0;                  /* If != 0, flags value for page footer */
+  int bFirst = 0;                 /* True for first key of output run */
+
+  pMerge = pMW->pLevel->pMerge;    
+  pSeg = &pMW->pLevel->lhs;
+
+  if( pSeg->iFirst==0 && pMW->pPage==0 ){
+    rc = mergeWorkerFirstPage(pMW);
+    bFirst = 1;
+  }
+  pPg = pMW->pPage;
+  if( pPg ){
+    aData = fsPageData(pPg, &nData);
+    nRec = pageGetNRec(aData, nData);
+    iFPtr = pageGetPtr(aData, nData);
+    iRPtr = iPtr ? (iPtr - iFPtr) : 0;
+  }
+     
+  /* Figure out how much space is required by the new record. The space
+  ** required is divided into two sections: the header and the body. The
+  ** header consists of the intial varint fields. The body are the blobs 
+  ** of data that correspond to the key and value data. The entire header 
+  ** must be stored on the page. The body may overflow onto the next and
+  ** subsequent pages.
+  **
+  ** The header space is:
+  **
+  **     1) record type - 1 byte.
+  **     2) Page-pointer-offset - 1 varint
+  **     3) Key size - 1 varint
+  **     4) Value size - 1 varint (only if LSM_INSERT flag is set)
+  */
+  if( rc==LSM_OK ){
+    nHdr = 1 + lsmVarintLen64(iRPtr) + lsmVarintLen32(nKey);
+    if( rtIsWrite(eType) ) nHdr += lsmVarintLen32(nVal);
+
+    /* If the entire header will not fit on page pPg, or if page pPg is 
+    ** marked read-only, advance to the next page of the output run. */
+    iOff = pMerge->iOutputOff;
+    if( iOff<0 || pPg==0 || iOff+nHdr > SEGMENT_EOF(nData, nRec+1) ){
+      if( iOff>=0 && pPg ){
+        /* Zero any free space on the page */
+        assert( aData );
+        memset(&aData[iOff], 0, SEGMENT_EOF(nData, nRec)-iOff);
+      }
+      iFPtr = *pMW->pCsr->pPrevMergePtr;
+      iRPtr = iPtr ? (iPtr - iFPtr) : 0;
+      iOff = 0;
+      nRec = 0;
+      rc = mergeWorkerNextPage(pMW, iFPtr);
+      pPg = pMW->pPage;
+    }
+  }
+
+  /* If this record header will be the first on the page, and the page is 
+  ** not the very first in the entire run, add a copy of the key to the
+  ** b-tree hierarchy.
+  */
+  if( rc==LSM_OK && nRec==0 && bFirst==0 ){
+    assert( pMerge->nSkip>=0 );
+
+    if( pMerge->nSkip==0 ){
+      rc = mergeWorkerPushHierarchy(pMW, rtTopic(eType), pKey, nKey);
+      assert( pMW->aSave[0].bStore==0 );
+      pMW->aSave[0].bStore = 1;
+      pMerge->nSkip = keyszToSkip(pMW->pDb->pFS, nKey);
+    }else{
+      pMerge->nSkip--;
+      flags = PGFTR_SKIP_THIS_FLAG;
+    }
+
+    if( pMerge->nSkip ) flags |= PGFTR_SKIP_NEXT_FLAG;
+  }
+
+  /* Update the output segment */
+  if( rc==LSM_OK ){
+    aData = fsPageData(pPg, &nData);
+
+    /* Update the page footer. */
+    lsmPutU16(&aData[SEGMENT_NRECORD_OFFSET(nData)], (u16)(nRec+1));
+    lsmPutU16(&aData[SEGMENT_CELLPTR_OFFSET(nData, nRec)], (u16)iOff);
+    if( flags ) lsmPutU16(&aData[SEGMENT_FLAGS_OFFSET(nData)], (u16)flags);
+
+    /* Write the entry header into the current page. */
+    aData[iOff++] = (u8)eType;                                           /* 1 */
+    iOff += lsmVarintPut64(&aData[iOff], iRPtr);                         /* 2 */
+    iOff += lsmVarintPut32(&aData[iOff], nKey);                          /* 3 */
+    if( rtIsWrite(eType) ) iOff += lsmVarintPut32(&aData[iOff], nVal);   /* 4 */
+    pMerge->iOutputOff = iOff;
+
+    /* Write the key and data into the segment. */
+    assert( iFPtr==pageGetPtr(aData, nData) );
+    rc = mergeWorkerData(pMW, 0, iFPtr+iRPtr, pKey, nKey);
+    if( rc==LSM_OK && rtIsWrite(eType) ){
+      if( rc==LSM_OK ){
+        rc = mergeWorkerData(pMW, 0, iFPtr+iRPtr, pVal, nVal);
+      }
+    }
+  }
+
+  return rc;
+}
+
+
+/*
+** Free all resources allocated by mergeWorkerInit().
+*/
+static void mergeWorkerShutdown(MergeWorker *pMW, int *pRc){
+  int i;                          /* Iterator variable */
+  int rc = *pRc;
+  MultiCursor *pCsr = pMW->pCsr;
+
+  /* Unless the merge has finished, save the cursor position in the
+  ** Merge.aInput[] array. See function mergeWorkerInit() for the 
+  ** code to restore a cursor position based on aInput[].  */
+  if( rc==LSM_OK && pCsr ){
+    Merge *pMerge = pMW->pLevel->pMerge;
+    if( lsmMCursorValid(pCsr) ){
+      int bBtree = (pCsr->pBtCsr!=0);
+      int iPtr;
+
+      /* pMerge->nInput==0 indicates that this is a FlushTree() operation. */
+      assert( pMerge->nInput==0 || pMW->pLevel->nRight>0 );
+      assert( pMerge->nInput==0 || pMerge->nInput==(pCsr->nPtr+bBtree) );
+
+      for(i=0; i<(pMerge->nInput-bBtree); i++){
+        SegmentPtr *pPtr = &pCsr->aPtr[i];
+        if( pPtr->pPg ){
+          pMerge->aInput[i].iPg = lsmFsPageNumber(pPtr->pPg);
+          pMerge->aInput[i].iCell = pPtr->iCell;
+        }else{
+          pMerge->aInput[i].iPg = 0;
+          pMerge->aInput[i].iCell = 0;
+        }
+      }
+      if( bBtree && pMerge->nInput ){
+        assert( i==pCsr->nPtr );
+        btreeCursorPosition(pCsr->pBtCsr, &pMerge->aInput[i]);
+      }
+
+      /* Store the location of the split-key */
+      iPtr = pCsr->aTree[1] - CURSOR_DATA_SEGMENT;
+      if( iPtr<pCsr->nPtr ){
+        pMerge->splitkey = pMerge->aInput[iPtr];
+      }else{
+        btreeCursorSplitkey(pCsr->pBtCsr, &pMerge->splitkey);
+      }
+    }
+
+    /* Zero any free space left on the final page. This helps with
+    ** compression if using a compression hook. And prevents valgrind
+    ** from complaining about uninitialized byte passed to write(). */
+    if( pMW->pPage ){
+      int nData;
+      u8 *aData = fsPageData(pMW->pPage, &nData);
+      int iOff = pMerge->iOutputOff;
+      int iEof = SEGMENT_EOF(nData, pageGetNRec(aData, nData));
+      memset(&aData[iOff], 0, iEof - iOff);
+    }
+    
+    pMerge->iOutputOff = -1;
+  }
+
+  lsmMCursorClose(pCsr, 0);
+
+  /* Persist and release the output page. */
+  if( rc==LSM_OK ) rc = mergeWorkerPersistAndRelease(pMW);
+  if( rc==LSM_OK ) rc = mergeWorkerBtreeIndirect(pMW);
+  if( rc==LSM_OK ) rc = mergeWorkerFinishHierarchy(pMW);
+  if( rc==LSM_OK ) rc = mergeWorkerAddPadding(pMW);
+  lsmFsFlushWaiting(pMW->pDb->pFS, &rc);
+  mergeWorkerReleaseAll(pMW);
+
+  lsmFree(pMW->pDb->pEnv, pMW->aGobble);
+  pMW->aGobble = 0;
+  pMW->pCsr = 0;
+
+  *pRc = rc;
+}
+
+/*
+** The cursor passed as the first argument is being used as the input for
+** a merge operation. When this function is called, *piFlags contains the
+** database entry flags for the current entry. The entry about to be written
+** to the output.
+**
+** Note that this function only has to work for cursors configured to 
+** iterate forwards (not backwards).
+*/
+static void mergeRangeDeletes(MultiCursor *pCsr, int *piVal, int *piFlags){
+  int f = *piFlags;
+  int iKey = pCsr->aTree[1];
+  int i;
+
+  assert( pCsr->flags & CURSOR_NEXT_OK );
+  if( pCsr->flags & CURSOR_IGNORE_DELETE ){
+    /* The ignore-delete flag is set when the output of the merge will form
+    ** the oldest level in the database. In this case there is no point in
+    ** retaining any range-delete flags.  */
+    assert( (f & LSM_POINT_DELETE)==0 );
+    f &= ~(LSM_START_DELETE|LSM_END_DELETE);
+  }else{
+    for(i=0; i<(CURSOR_DATA_SEGMENT + pCsr->nPtr); i++){
+      if( i!=iKey ){
+        int eType;
+        void *pKey;
+        int nKey;
+        int res;
+        multiCursorGetKey(pCsr, i, &eType, &pKey, &nKey);
+
+        if( pKey ){
+          res = sortedKeyCompare(pCsr->pDb->xCmp, 
+              rtTopic(pCsr->eType), pCsr->key.pData, pCsr->key.nData,
+              rtTopic(eType), pKey, nKey
+          );
+          assert( res<=0 );
+          if( res==0 ){
+            if( (f & (LSM_INSERT|LSM_POINT_DELETE))==0 ){
+              if( eType & LSM_INSERT ){
+                f |= LSM_INSERT;
+                *piVal = i;
+              }
+              else if( eType & LSM_POINT_DELETE ){
+                f |= LSM_POINT_DELETE;
+              }
+            }
+            f |= (eType & (LSM_END_DELETE|LSM_START_DELETE));
+          }
+
+          if( i>iKey && (eType & LSM_END_DELETE) && res<0 ){
+            if( f & (LSM_INSERT|LSM_POINT_DELETE) ){
+              f |= (LSM_END_DELETE|LSM_START_DELETE);
+            }else{
+              f = 0;
+            }
+            break;
+          }
+        }
+      }
+    }
+
+    assert( (f & LSM_INSERT)==0 || (f & LSM_POINT_DELETE)==0 );
+    if( (f & LSM_START_DELETE) 
+     && (f & LSM_END_DELETE) 
+     && (f & LSM_POINT_DELETE )
+    ){
+      f = 0;
+    }
+  }
+
+  *piFlags = f;
+}
+
+static int mergeWorkerStep(MergeWorker *pMW){
+  lsm_db *pDb = pMW->pDb;       /* Database handle */
+  MultiCursor *pCsr;            /* Cursor to read input data from */
+  int rc = LSM_OK;              /* Return code */
+  int eType;                    /* SORTED_SEPARATOR, WRITE or DELETE */
+  void *pKey; int nKey;         /* Key */
+  LsmPgno iPtr;
+  int iVal;
+
+  pCsr = pMW->pCsr;
+
+  /* Pull the next record out of the source cursor. */
+  lsmMCursorKey(pCsr, &pKey, &nKey);
+  eType = pCsr->eType;
+
+  /* Figure out if the output record may have a different pointer value
+  ** than the previous. This is the case if the current key is identical to
+  ** a key that appears in the lowest level run being merged. If so, set 
+  ** iPtr to the absolute pointer value. If not, leave iPtr set to zero, 
+  ** indicating that the output pointer value should be a copy of the pointer 
+  ** value written with the previous key.  */
+  iPtr = (pCsr->pPrevMergePtr ? *pCsr->pPrevMergePtr : 0);
+  if( pCsr->pBtCsr ){
+    BtreeCursor *pBtCsr = pCsr->pBtCsr;
+    if( pBtCsr->pKey ){
+      int res = rtTopic(pBtCsr->eType) - rtTopic(eType);
+      if( res==0 ) res = pDb->xCmp(pBtCsr->pKey, pBtCsr->nKey, pKey, nKey);
+      if( 0==res ) iPtr = pBtCsr->iPtr;
+      assert( res>=0 );
+    }
+  }else if( pCsr->nPtr ){
+    SegmentPtr *pPtr = &pCsr->aPtr[pCsr->nPtr-1];
+    if( pPtr->pPg
+     && 0==pDb->xCmp(pPtr->pKey, pPtr->nKey, pKey, nKey)
+    ){
+      iPtr = pPtr->iPtr+pPtr->iPgPtr;
+    }
+  }
+
+  iVal = pCsr->aTree[1];
+  mergeRangeDeletes(pCsr, &iVal, &eType);
+
+  if( eType!=0 ){
+    if( pMW->aGobble ){
+      int iGobble = pCsr->aTree[1] - CURSOR_DATA_SEGMENT;
+      if( iGobble<pCsr->nPtr && iGobble>=0 ){
+        SegmentPtr *pGobble = &pCsr->aPtr[iGobble];
+        if( (pGobble->flags & PGFTR_SKIP_THIS_FLAG)==0 ){
+          pMW->aGobble[iGobble] = lsmFsPageNumber(pGobble->pPg);
+        }
+      }
+    }
+
+    /* If this is a separator key and we know that the output pointer has not
+    ** changed, there is no point in writing an output record. Otherwise,
+    ** proceed. */
+    if( rc==LSM_OK && (rtIsSeparator(eType)==0 || iPtr!=0) ){
+      /* Write the record into the main run. */
+      void *pVal; int nVal;
+      rc = multiCursorGetVal(pCsr, iVal, &pVal, &nVal);
+      if( pVal && rc==LSM_OK ){
+        assert( nVal>=0 );
+        rc = sortedBlobSet(pDb->pEnv, &pCsr->val, pVal, nVal);
+        pVal = pCsr->val.pData;
+      }
+      if( rc==LSM_OK ){
+        rc = mergeWorkerWrite(pMW, eType, pKey, nKey, pVal, nVal, iPtr);
+      }
+    }
+  }
+
+  /* Advance the cursor to the next input record (assuming one exists). */
+  assert( lsmMCursorValid(pMW->pCsr) );
+  if( rc==LSM_OK ) rc = lsmMCursorNext(pMW->pCsr);
+
+  return rc;
+}
+
+static int mergeWorkerDone(MergeWorker *pMW){
+  return pMW->pCsr==0 || !lsmMCursorValid(pMW->pCsr);
+}
+
+static void sortedFreeLevel(lsm_env *pEnv, Level *p){
+  if( p ){
+    lsmFree(pEnv, p->pSplitKey);
+    lsmFree(pEnv, p->pMerge);
+    lsmFree(pEnv, p->aRhs);
+    lsmFree(pEnv, p);
+  }
+}
+
+static void sortedInvokeWorkHook(lsm_db *pDb){
+  if( pDb->xWork ){
+    pDb->xWork(pDb, pDb->pWorkCtx);
+  }
+}
+
+static int sortedNewToplevel(
+  lsm_db *pDb,                    /* Connection handle */
+  int eTree,                      /* One of the TREE_XXX constants */
+  int *pnWrite                    /* OUT: Number of database pages written */
+){
+  int rc = LSM_OK;                /* Return Code */
+  MultiCursor *pCsr = 0;
+  Level *pNext = 0;               /* The current top level */
+  Level *pNew;                    /* The new level itself */
+  Segment *pLinked = 0;           /* Delete separators from this segment */
+  Level *pDel = 0;                /* Delete this entire level */
+  int nWrite = 0;                 /* Number of database pages written */
+  Freelist freelist;
+
+  if( eTree!=TREE_NONE ){
+    rc = lsmShmCacheChunks(pDb, pDb->treehdr.nChunk);
+  }
+
+  assert( pDb->bUseFreelist==0 );
+  pDb->pFreelist = &freelist;
+  pDb->bUseFreelist = 1;
+  memset(&freelist, 0, sizeof(freelist));
+
+  /* Allocate the new level structure to write to. */
+  pNext = lsmDbSnapshotLevel(pDb->pWorker);
+  pNew = (Level *)lsmMallocZeroRc(pDb->pEnv, sizeof(Level), &rc);
+  if( pNew ){
+    pNew->pNext = pNext;
+    lsmDbSnapshotSetLevel(pDb->pWorker, pNew);
+  }
+
+  /* Create a cursor to gather the data required by the new segment. The new
+  ** segment contains everything in the tree and pointers to the next segment
+  ** in the database (if any).  */
+  pCsr = multiCursorNew(pDb, &rc);
+  if( pCsr ){
+    pCsr->pDb = pDb;
+    rc = multiCursorVisitFreelist(pCsr);
+    if( rc==LSM_OK ){
+      rc = multiCursorAddTree(pCsr, pDb->pWorker, eTree);
+    }
+    if( rc==LSM_OK && pNext && pNext->pMerge==0 ){
+      if( (pNext->flags & LEVEL_FREELIST_ONLY) ){
+        pDel = pNext;
+        pCsr->aPtr = lsmMallocZeroRc(pDb->pEnv, sizeof(SegmentPtr), &rc);
+        multiCursorAddOne(pCsr, pNext, &rc);
+      }else if( eTree!=TREE_NONE && pNext->lhs.iRoot ){
+        pLinked = &pNext->lhs;
+        rc = btreeCursorNew(pDb, pLinked, &pCsr->pBtCsr);
+      }
+    }
+
+    /* If this will be the only segment in the database, discard any delete
+    ** markers present in the in-memory tree.  */
+    if( pNext==0 ){
+      multiCursorIgnoreDelete(pCsr);
+    }
+  }
+
+  if( rc!=LSM_OK ){
+    lsmMCursorClose(pCsr, 0);
+  }else{
+    LsmPgno iLeftPtr = 0;
+    Merge merge;                  /* Merge object used to create new level */
+    MergeWorker mergeworker;      /* MergeWorker object for the same purpose */
+
+    memset(&merge, 0, sizeof(Merge));
+    memset(&mergeworker, 0, sizeof(MergeWorker));
+
+    pNew->pMerge = &merge;
+    pNew->flags |= LEVEL_INCOMPLETE;
+    mergeworker.pDb = pDb;
+    mergeworker.pLevel = pNew;
+    mergeworker.pCsr = pCsr;
+    pCsr->pPrevMergePtr = &iLeftPtr;
+
+    /* Mark the separators array for the new level as a "phantom". */
+    mergeworker.bFlush = 1;
+
+    /* Do the work to create the new merged segment on disk */
+    if( rc==LSM_OK ) rc = lsmMCursorFirst(pCsr);
+    while( rc==LSM_OK && mergeWorkerDone(&mergeworker)==0 ){
+      rc = mergeWorkerStep(&mergeworker);
+    }
+    mergeWorkerShutdown(&mergeworker, &rc);
+    assert( rc!=LSM_OK || mergeworker.nWork==0 || pNew->lhs.iFirst );
+    if( rc==LSM_OK && pNew->lhs.iFirst ){
+      rc = lsmFsSortedFinish(pDb->pFS, &pNew->lhs);
+    }
+    nWrite = mergeworker.nWork;
+    pNew->flags &= ~LEVEL_INCOMPLETE;
+    if( eTree==TREE_NONE ){
+      pNew->flags |= LEVEL_FREELIST_ONLY;
+    }
+    pNew->pMerge = 0;
+  }
+
+  if( rc!=LSM_OK || pNew->lhs.iFirst==0 ){
+    assert( rc!=LSM_OK || pDb->pWorker->freelist.nEntry==0 );
+    lsmDbSnapshotSetLevel(pDb->pWorker, pNext);
+    sortedFreeLevel(pDb->pEnv, pNew);
+  }else{
+    if( pLinked ){
+      pLinked->iRoot = 0;
+    }else if( pDel ){
+      assert( pNew->pNext==pDel );
+      pNew->pNext = pDel->pNext;
+      lsmFsSortedDelete(pDb->pFS, pDb->pWorker, 1, &pDel->lhs);
+      sortedFreeLevel(pDb->pEnv, pDel);
+    }
+
+#if LSM_LOG_STRUCTURE
+    lsmSortedDumpStructure(pDb, pDb->pWorker, LSM_LOG_DATA, 0, "new-toplevel");
+#endif
+
+    if( freelist.nEntry ){
+      Freelist *p = &pDb->pWorker->freelist;
+      lsmFree(pDb->pEnv, p->aEntry);
+      memcpy(p, &freelist, sizeof(freelist));
+      freelist.aEntry = 0;
+    }else{
+      pDb->pWorker->freelist.nEntry = 0;
+    }
+
+    assertBtreeOk(pDb, &pNew->lhs);
+    sortedInvokeWorkHook(pDb);
+  }
+
+  if( pnWrite ) *pnWrite = nWrite;
+  pDb->pWorker->nWrite += nWrite;
+  pDb->pFreelist = 0;
+  pDb->bUseFreelist = 0;
+  lsmFree(pDb->pEnv, freelist.aEntry);
+  return rc;
+}
+
+/*
+** The nMerge levels in the LSM beginning with pLevel consist of a
+** left-hand-side segment only. Replace these levels with a single new
+** level consisting of a new empty segment on the left-hand-side and the
+** nMerge segments from the replaced levels on the right-hand-side.
+**
+** Also, allocate and populate a Merge object and set Level.pMerge to
+** point to it.
+*/
+static int sortedMergeSetup(
+  lsm_db *pDb,                    /* Database handle */
+  Level *pLevel,                  /* First level to merge */
+  int nMerge,                     /* Merge this many levels together */
+  Level **ppNew                   /* New, merged, level */
+){
+  int rc = LSM_OK;                /* Return Code */
+  Level *pNew;                    /* New Level object */
+  int bUseNext = 0;               /* True to link in next separators */
+  Merge *pMerge;                  /* New Merge object */
+  int nByte;                      /* Bytes of space allocated at pMerge */
+
+#ifdef LSM_DEBUG
+  int iLevel;
+  Level *pX = pLevel;
+  for(iLevel=0; iLevel<nMerge; iLevel++){
+    assert( pX->nRight==0 );
+    pX = pX->pNext;
+  }
+#endif
+
+  /* Allocate the new Level object */
+  pNew = (Level *)lsmMallocZeroRc(pDb->pEnv, sizeof(Level), &rc);
+  if( pNew ){
+    pNew->aRhs = (Segment *)lsmMallocZeroRc(pDb->pEnv, 
+                                        nMerge * sizeof(Segment), &rc);
+  }
+
+  /* Populate the new Level object */
+  if( rc==LSM_OK ){
+    Level *pNext = 0;             /* Level following pNew */
+    int i;
+    int bFreeOnly = 1;
+    Level *pTopLevel;
+    Level *p = pLevel;
+    Level **pp;
+    pNew->nRight = nMerge;
+    pNew->iAge = pLevel->iAge+1;
+    for(i=0; i<nMerge; i++){
+      assert( p->nRight==0 );
+      pNext = p->pNext;
+      pNew->aRhs[i] = p->lhs;
+      if( (p->flags & LEVEL_FREELIST_ONLY)==0 ) bFreeOnly = 0;
+      sortedFreeLevel(pDb->pEnv, p);
+      p = pNext;
+    }
+
+    if( bFreeOnly ) pNew->flags |= LEVEL_FREELIST_ONLY;
+
+    /* Replace the old levels with the new. */
+    pTopLevel = lsmDbSnapshotLevel(pDb->pWorker);
+    pNew->pNext = p;
+    for(pp=&pTopLevel; *pp!=pLevel; pp=&((*pp)->pNext));
+    *pp = pNew;
+    lsmDbSnapshotSetLevel(pDb->pWorker, pTopLevel);
+
+    /* Determine whether or not the next separators will be linked in */
+    if( pNext && pNext->pMerge==0 && pNext->lhs.iRoot && pNext 
+     && (bFreeOnly==0 || (pNext->flags & LEVEL_FREELIST_ONLY))
+    ){
+      bUseNext = 1;
+    }
+  }
+
+  /* Allocate the merge object */
+  nByte = sizeof(Merge) + sizeof(MergeInput) * (nMerge + bUseNext);
+  pMerge = (Merge *)lsmMallocZeroRc(pDb->pEnv, nByte, &rc);
+  if( pMerge ){
+    pMerge->aInput = (MergeInput *)&pMerge[1];
+    pMerge->nInput = nMerge + bUseNext;
+    pNew->pMerge = pMerge;
+  }
+
+  *ppNew = pNew;
+  return rc;
+}
+
+static int mergeWorkerInit(
+  lsm_db *pDb,                    /* Db connection to do merge work */
+  Level *pLevel,                  /* Level to work on merging */
+  MergeWorker *pMW                /* Object to initialize */
+){
+  int rc = LSM_OK;                /* Return code */
+  Merge *pMerge = pLevel->pMerge; /* Persistent part of merge state */
+  MultiCursor *pCsr = 0;          /* Cursor opened for pMW */
+  Level *pNext = pLevel->pNext;   /* Next level in LSM */
+
+  assert( pDb->pWorker );
+  assert( pLevel->pMerge );
+  assert( pLevel->nRight>0 );
+
+  memset(pMW, 0, sizeof(MergeWorker));
+  pMW->pDb = pDb;
+  pMW->pLevel = pLevel;
+  pMW->aGobble = lsmMallocZeroRc(pDb->pEnv, sizeof(LsmPgno)*pLevel->nRight,&rc);
+
+  /* Create a multi-cursor to read the data to write to the new
+  ** segment. The new segment contains:
+  **
+  **   1. Records from LHS of each of the nMerge levels being merged.
+  **   2. Separators from either the last level being merged, or the
+  **      separators attached to the LHS of the following level, or neither.
+  **
+  ** If the new level is the lowest (oldest) in the db, discard any
+  ** delete keys. Key annihilation.
+  */
+  pCsr = multiCursorNew(pDb, &rc);
+  if( pCsr ){
+    pCsr->flags |= CURSOR_NEXT_OK;
+    rc = multiCursorAddRhs(pCsr, pLevel);
+  }
+  if( rc==LSM_OK && pMerge->nInput > pLevel->nRight ){
+    rc = btreeCursorNew(pDb, &pNext->lhs, &pCsr->pBtCsr);
+  }else if( pNext ){
+    multiCursorReadSeparators(pCsr);
+  }else{
+    multiCursorIgnoreDelete(pCsr);
+  }
+
+  assert( rc!=LSM_OK || pMerge->nInput==(pCsr->nPtr+(pCsr->pBtCsr!=0)) );
+  pMW->pCsr = pCsr;
+
+  /* Load the b-tree hierarchy into memory. */
+  if( rc==LSM_OK ) rc = mergeWorkerLoadHierarchy(pMW);
+  if( rc==LSM_OK && pMW->hier.nHier==0 ){
+    pMW->aSave[0].iPgno = pLevel->lhs.iFirst;
+  }
+
+  /* Position the cursor. */
+  if( rc==LSM_OK ){
+    pCsr->pPrevMergePtr = &pMerge->iCurrentPtr;
+    if( pLevel->lhs.iFirst==0 ){
+      /* The output array is still empty. So position the cursor at the very 
+      ** start of the input.  */
+      rc = multiCursorEnd(pCsr, 0);
+    }else{
+      /* The output array is non-empty. Position the cursor based on the
+      ** page/cell data saved in the Merge.aInput[] array.  */
+      int i;
+      for(i=0; rc==LSM_OK && i<pCsr->nPtr; i++){
+        MergeInput *pInput = &pMerge->aInput[i];
+        if( pInput->iPg ){
+          SegmentPtr *pPtr;
+          assert( pCsr->aPtr[i].pPg==0 );
+          pPtr = &pCsr->aPtr[i];
+          rc = segmentPtrLoadPage(pDb->pFS, pPtr, pInput->iPg);
+          if( rc==LSM_OK && pPtr->nCell>0 ){
+            rc = segmentPtrLoadCell(pPtr, pInput->iCell);
+          }
+        }
+      }
+
+      if( rc==LSM_OK && pCsr->pBtCsr ){
+        int (*xCmp)(void *, int, void *, int) = pCsr->pDb->xCmp;
+        assert( i==pCsr->nPtr );
+        rc = btreeCursorRestore(pCsr->pBtCsr, xCmp, &pMerge->aInput[i]);
+      }
+
+      if( rc==LSM_OK ){
+        rc = multiCursorSetupTree(pCsr, 0);
+      }
+    }
+    pCsr->flags |= CURSOR_NEXT_OK;
+  }
+
+  return rc;
+}
+
+static int sortedBtreeGobble(
+  lsm_db *pDb,                    /* Worker connection */
+  MultiCursor *pCsr,              /* Multi-cursor being used for a merge */
+  int iGobble                     /* pCsr->aPtr[] entry to operate on */
+){
+  int rc = LSM_OK;
+  if( rtTopic(pCsr->eType)==0 ){
+    Segment *pSeg = pCsr->aPtr[iGobble].pSeg;
+    LsmPgno *aPg;
+    int nPg;
+
+    /* Seek from the root of the b-tree to the segment leaf that may contain
+    ** a key equal to the one multi-cursor currently points to. Record the
+    ** page number of each b-tree page and the leaf. The segment may be
+    ** gobbled up to (but not including) the first of these page numbers.
+    */
+    assert( pSeg->iRoot>0 );
+    aPg = lsmMallocZeroRc(pDb->pEnv, sizeof(LsmPgno)*32, &rc);
+    if( rc==LSM_OK ){
+      rc = seekInBtree(pCsr, pSeg, 
+          rtTopic(pCsr->eType), pCsr->key.pData, pCsr->key.nData, aPg, 0
+      ); 
+    }
+
+    if( rc==LSM_OK ){
+      for(nPg=0; aPg[nPg]; nPg++);
+      lsmFsGobble(pDb, pSeg, aPg, nPg);
+    }
+
+    lsmFree(pDb->pEnv, aPg);
+  }
+  return rc;
+}
+
+/*
+** Argument p points to a level of age N. Return the number of levels in
+** the linked list starting at p that have age=N (always at least 1).
+*/
+static int sortedCountLevels(Level *p){
+  int iAge = p->iAge;
+  int nRet = 0;
+  do {
+    nRet++;
+    p = p->pNext;
+  }while( p && p->iAge==iAge );
+  return nRet;
+}
+
+static int sortedSelectLevel(lsm_db *pDb, int nMerge, Level **ppOut){
+  Level *pTopLevel = lsmDbSnapshotLevel(pDb->pWorker);
+  int rc = LSM_OK;
+  Level *pLevel = 0;            /* Output value */
+  Level *pBest = 0;             /* Best level to work on found so far */
+  int nBest;                    /* Number of segments merged at pBest */
+  Level *pThis = 0;             /* First in run of levels with age=iAge */
+  int nThis = 0;                /* Number of levels starting at pThis */
+
+  assert( nMerge>=1 );
+  nBest = LSM_MAX(1, nMerge-1);
+
+  /* Find the longest contiguous run of levels not currently undergoing a 
+  ** merge with the same age in the structure. Or the level being merged
+  ** with the largest number of right-hand segments. Work on it. */
+  for(pLevel=pTopLevel; pLevel; pLevel=pLevel->pNext){
+    if( pLevel->nRight==0 && pThis && pLevel->iAge==pThis->iAge ){
+      nThis++;
+    }else{
+      if( nThis>nBest ){
+        if( (pLevel->iAge!=pThis->iAge+1)
+         || (pLevel->nRight==0 && sortedCountLevels(pLevel)<=pDb->nMerge)
+        ){
+          pBest = pThis;
+          nBest = nThis;
+        }
+      }
+      if( pLevel->nRight ){
+        if( pLevel->nRight>nBest ){
+          nBest = pLevel->nRight;
+          pBest = pLevel;
+        }
+        nThis = 0;
+        pThis = 0;
+      }else{
+        pThis = pLevel;
+        nThis = 1;
+      }
+    }
+  }
+  if( nThis>nBest ){
+    assert( pThis );
+    pBest = pThis;
+    nBest = nThis;
+  }
+
+  if( pBest==0 && nMerge==1 ){
+    int nFree = 0;
+    int nUsr = 0;
+    for(pLevel=pTopLevel; pLevel; pLevel=pLevel->pNext){
+      assert( !pLevel->nRight );
+      if( pLevel->flags & LEVEL_FREELIST_ONLY ){
+        nFree++;
+      }else{
+        nUsr++;
+      }
+    }
+    if( nUsr>1 ){
+      pBest = pTopLevel;
+      nBest = nFree + nUsr;
+    }
+  }
+
+  if( pBest ){
+    if( pBest->nRight==0 ){
+      rc = sortedMergeSetup(pDb, pBest, nBest, ppOut);
+    }else{
+      *ppOut = pBest;
+    }
+  }
+
+  return rc;
+}
+
+static int sortedDbIsFull(lsm_db *pDb){
+  Level *pTop = lsmDbSnapshotLevel(pDb->pWorker);
+
+  if( lsmDatabaseFull(pDb) ) return 1;
+  if( pTop && pTop->iAge==0
+   && (pTop->nRight || sortedCountLevels(pTop)>=pDb->nMerge)
+  ){
+    return 1;
+  }
+  return 0;
+}
+
+typedef struct MoveBlockCtx MoveBlockCtx;
+struct MoveBlockCtx {
+  int iSeen;                      /* Previous free block on list */
+  int iFrom;                      /* Total number of blocks in file */
+};
+
+static int moveBlockCb(void *pCtx, int iBlk, i64 iSnapshot){
+  MoveBlockCtx *p = (MoveBlockCtx *)pCtx;
+  assert( p->iFrom==0 );
+  if( iBlk==(p->iSeen-1) ){
+    p->iSeen = iBlk;
+    return 0;
+  }
+  p->iFrom = p->iSeen-1;
+  return 1;
+}
+
+/*
+** This function is called to further compact a database for which all 
+** of the content has already been merged into a single segment. If 
+** possible, it moves the contents of a single block from the end of the
+** file to a free-block that lies closer to the start of the file (allowing
+** the file to be eventually truncated).
+*/
+static int sortedMoveBlock(lsm_db *pDb, int *pnWrite){
+  Snapshot *p = pDb->pWorker;
+  Level *pLvl = lsmDbSnapshotLevel(p);
+  int iFrom;                      /* Block to move */
+  int iTo;                        /* Destination to move block to */
+  int rc;                         /* Return code */
+
+  MoveBlockCtx sCtx;
+
+  assert( pLvl->pNext==0 && pLvl->nRight==0 );
+  assert( p->redirect.n<=LSM_MAX_BLOCK_REDIRECTS );
+
+  *pnWrite = 0;
+
+  /* Check that the redirect array is not already full. If it is, return
+  ** without moving any database content.  */
+  if( p->redirect.n>=LSM_MAX_BLOCK_REDIRECTS ) return LSM_OK;
+
+  /* Find the last block of content in the database file. Do this by 
+  ** traversing the free-list in reverse (descending block number) order.
+  ** The first block not on the free list is the one that will be moved.
+  ** Since the db consists of a single segment, there is no ambiguity as
+  ** to which segment the block belongs to.  */
+  sCtx.iSeen = p->nBlock+1;
+  sCtx.iFrom = 0;
+  rc = lsmWalkFreelist(pDb, 1, moveBlockCb, &sCtx);
+  if( rc!=LSM_OK || sCtx.iFrom==0 ) return rc;
+  iFrom = sCtx.iFrom;
+
+  /* Find the first free block in the database, ignoring block 1. Block
+  ** 1 is tricky as it is smaller than the other blocks.  */
+  rc = lsmBlockAllocate(pDb, iFrom, &iTo);
+  if( rc!=LSM_OK || iTo==0 ) return rc;
+  assert( iTo!=1 && iTo<iFrom );
+
+  rc = lsmFsMoveBlock(pDb->pFS, &pLvl->lhs, iTo, iFrom);
+  if( rc==LSM_OK ){
+    if( p->redirect.a==0 ){
+      int nByte = sizeof(struct RedirectEntry) * LSM_MAX_BLOCK_REDIRECTS;
+      p->redirect.a = lsmMallocZeroRc(pDb->pEnv, nByte, &rc);
+    }
+    if( rc==LSM_OK ){
+
+      /* Check if the block just moved was already redirected. */
+      int i;
+      for(i=0; i<p->redirect.n; i++){
+        if( p->redirect.a[i].iTo==iFrom ) break;
+      }
+
+      if( i==p->redirect.n ){
+        /* Block iFrom was not already redirected. Add a new array entry. */
+        memmove(&p->redirect.a[1], &p->redirect.a[0], 
+            sizeof(struct RedirectEntry) * p->redirect.n
+            );
+        p->redirect.a[0].iFrom = iFrom;
+        p->redirect.a[0].iTo = iTo;
+        p->redirect.n++;
+      }else{
+        /* Block iFrom was already redirected. Overwrite existing entry. */
+        p->redirect.a[i].iTo = iTo;
+      }
+
+      rc = lsmBlockFree(pDb, iFrom);
+
+      *pnWrite = lsmFsBlockSize(pDb->pFS) / lsmFsPageSize(pDb->pFS);
+      pLvl->lhs.pRedirect = &p->redirect;
+    }
+  }
+
+#if LSM_LOG_STRUCTURE
+  if( rc==LSM_OK ){
+    char aBuf[64];
+    sprintf(aBuf, "move-block %d/%d", p->redirect.n-1, LSM_MAX_BLOCK_REDIRECTS);
+    lsmSortedDumpStructure(pDb, pDb->pWorker, LSM_LOG_DATA, 0, aBuf);
+  }
+#endif
+  return rc;
+}
+
+/*
+*/
+static int mergeInsertFreelistSegments(
+  lsm_db *pDb, 
+  int nFree,
+  MergeWorker *pMW
+){
+  int rc = LSM_OK;
+  if( nFree>0 ){
+    MultiCursor *pCsr = pMW->pCsr;
+    Level *pLvl = pMW->pLevel;
+    SegmentPtr *aNew1;
+    Segment *aNew2;
+
+    Level *pIter;
+    Level *pNext;
+    int i = 0;
+
+    aNew1 = (SegmentPtr *)lsmMallocZeroRc(
+        pDb->pEnv, sizeof(SegmentPtr) * (pCsr->nPtr+nFree), &rc
+    );
+    if( rc ) return rc;
+    memcpy(&aNew1[nFree], pCsr->aPtr, sizeof(SegmentPtr)*pCsr->nPtr);
+    pCsr->nPtr += nFree;
+    lsmFree(pDb->pEnv, pCsr->aTree);
+    lsmFree(pDb->pEnv, pCsr->aPtr);
+    pCsr->aTree = 0;
+    pCsr->aPtr = aNew1;
+
+    aNew2 = (Segment *)lsmMallocZeroRc(
+        pDb->pEnv, sizeof(Segment) * (pLvl->nRight+nFree), &rc
+    );
+    if( rc ) return rc;
+    memcpy(&aNew2[nFree], pLvl->aRhs, sizeof(Segment)*pLvl->nRight);
+    pLvl->nRight += nFree;
+    lsmFree(pDb->pEnv, pLvl->aRhs);
+    pLvl->aRhs = aNew2;
+
+    for(pIter=pDb->pWorker->pLevel; rc==LSM_OK && pIter!=pLvl; pIter=pNext){
+      Segment *pSeg = &pLvl->aRhs[i];
+      memcpy(pSeg, &pIter->lhs, sizeof(Segment));
+
+      pCsr->aPtr[i].pSeg = pSeg;
+      pCsr->aPtr[i].pLevel = pLvl;
+      rc = segmentPtrEnd(pCsr, &pCsr->aPtr[i], 0);
+
+      pDb->pWorker->pLevel = pNext = pIter->pNext;
+      sortedFreeLevel(pDb->pEnv, pIter);
+      i++;
+    }
+    assert( i==nFree );
+    assert( rc!=LSM_OK || pDb->pWorker->pLevel==pLvl );
+
+    for(i=nFree; i<pCsr->nPtr; i++){
+      pCsr->aPtr[i].pSeg = &pLvl->aRhs[i];
+    }
+
+    lsmFree(pDb->pEnv, pMW->aGobble);
+    pMW->aGobble = 0;
+  }
+  return rc;
+}
+
+static int sortedWork(
+  lsm_db *pDb,                    /* Database handle. Must be worker. */
+  int nWork,                      /* Number of pages of work to do */
+  int nMerge,                     /* Try to merge this many levels at once */
+  int bFlush,                     /* Set if call is to make room for a flush */
+  int *pnWrite                    /* OUT: Actual number of pages written */
+){
+  int rc = LSM_OK;                /* Return Code */
+  int nRemaining = nWork;         /* Units of work to do before returning */
+  Snapshot *pWorker = pDb->pWorker;
+
+  assert( pWorker );
+  if( lsmDbSnapshotLevel(pWorker)==0 ) return LSM_OK;
+
+  while( nRemaining>0 ){
+    Level *pLevel = 0;
+
+    /* Find a level to work on. */
+    rc = sortedSelectLevel(pDb, nMerge, &pLevel);
+    assert( rc==LSM_OK || pLevel==0 );
+
+    if( pLevel==0 ){
+      int nDone = 0;
+      Level *pTopLevel = lsmDbSnapshotLevel(pDb->pWorker);
+      if( bFlush==0 && nMerge==1 && pTopLevel && pTopLevel->pNext==0 ){
+        rc = sortedMoveBlock(pDb, &nDone);
+      }
+      nRemaining -= nDone;
+
+      /* Could not find any work to do. Finished. */
+      if( nDone==0 ) break;
+    }else{
+      int bSave = 0;
+      Freelist freelist = {0, 0, 0};
+      MergeWorker mergeworker;    /* State used to work on the level merge */
+
+      assert( pDb->bIncrMerge==0 );
+      assert( pDb->pFreelist==0 && pDb->bUseFreelist==0 );
+
+      pDb->bIncrMerge = 1;
+      rc = mergeWorkerInit(pDb, pLevel, &mergeworker);
+      assert( mergeworker.nWork==0 );
+      
+      while( rc==LSM_OK 
+          && 0==mergeWorkerDone(&mergeworker) 
+          && (mergeworker.nWork<nRemaining || pDb->bUseFreelist)
+      ){
+        int eType = rtTopic(mergeworker.pCsr->eType);
+        rc = mergeWorkerStep(&mergeworker);
+
+        /* If the cursor now points at the first entry past the end of the
+        ** user data (i.e. either to EOF or to the first free-list entry
+        ** that will be added to the run), then check if it is possible to
+        ** merge in any free-list entries that are either in-memory or in
+        ** free-list-only blocks.  */
+        if( rc==LSM_OK && nMerge==1 && eType==0
+         && (rtTopic(mergeworker.pCsr->eType) || mergeWorkerDone(&mergeworker))
+        ){
+          int nFree = 0;          /* Number of free-list-only levels to merge */
+          Level *pLvl;
+          assert( pDb->pFreelist==0 && pDb->bUseFreelist==0 );
+
+          /* Now check if all levels containing data newer than this one
+          ** are single-segment free-list only levels. If so, they will be
+          ** merged in now.  */
+          for(pLvl=pDb->pWorker->pLevel; 
+              pLvl!=mergeworker.pLevel && (pLvl->flags & LEVEL_FREELIST_ONLY); 
+              pLvl=pLvl->pNext
+          ){
+            assert( pLvl->nRight==0 );
+            nFree++;
+          }
+          if( pLvl==mergeworker.pLevel ){
+
+            rc = mergeInsertFreelistSegments(pDb, nFree, &mergeworker);
+            if( rc==LSM_OK ){
+              rc = multiCursorVisitFreelist(mergeworker.pCsr);
+            }
+            if( rc==LSM_OK ){
+              rc = multiCursorSetupTree(mergeworker.pCsr, 0);
+              pDb->pFreelist = &freelist;
+              pDb->bUseFreelist = 1;
+            }
+          }
+        }
+      }
+      nRemaining -= LSM_MAX(mergeworker.nWork, 1);
+
+      if( rc==LSM_OK ){
+        /* Check if the merge operation is completely finished. If not,
+        ** gobble up (declare eligible for recycling) any pages from rhs
+        ** segments for which the content has been completely merged into 
+        ** the lhs of the level.  */
+        if( mergeWorkerDone(&mergeworker)==0 ){
+          int i;
+          for(i=0; i<pLevel->nRight; i++){
+            SegmentPtr *pGobble = &mergeworker.pCsr->aPtr[i];
+            if( pGobble->pSeg->iRoot ){
+              rc = sortedBtreeGobble(pDb, mergeworker.pCsr, i);
+            }else if( mergeworker.aGobble[i] ){
+              lsmFsGobble(pDb, pGobble->pSeg, &mergeworker.aGobble[i], 1);
+            }
+          }
+        }else{
+          int i;
+          int bEmpty;
+          mergeWorkerShutdown(&mergeworker, &rc);
+          bEmpty = (pLevel->lhs.iFirst==0);
+
+          if( bEmpty==0 && rc==LSM_OK ){
+            rc = lsmFsSortedFinish(pDb->pFS, &pLevel->lhs);
+          }
+
+          if( pDb->bUseFreelist ){
+            Freelist *p = &pDb->pWorker->freelist;
+            lsmFree(pDb->pEnv, p->aEntry);
+            memcpy(p, &freelist, sizeof(freelist));
+            pDb->bUseFreelist = 0;
+            pDb->pFreelist = 0;
+            bSave = 1;
+          }
+
+          for(i=0; i<pLevel->nRight; i++){
+            lsmFsSortedDelete(pDb->pFS, pWorker, 1, &pLevel->aRhs[i]);
+          }
+
+          if( bEmpty ){
+            /* If the new level is completely empty, remove it from the 
+            ** database snapshot. This can only happen if all input keys were
+            ** annihilated. Since keys are only annihilated if the new level
+            ** is the last in the linked list (contains the most ancient of
+            ** database content), this guarantees that pLevel->pNext==0.  */ 
+            Level *pTop;          /* Top level of worker snapshot */
+            Level **pp;           /* Read/write iterator for Level.pNext list */
+
+            assert( pLevel->pNext==0 );
+
+            /* Remove the level from the worker snapshot. */
+            pTop = lsmDbSnapshotLevel(pWorker);
+            for(pp=&pTop; *pp!=pLevel; pp=&((*pp)->pNext));
+            *pp = pLevel->pNext;
+            lsmDbSnapshotSetLevel(pWorker, pTop);
+
+            /* Free the Level structure. */
+            sortedFreeLevel(pDb->pEnv, pLevel);
+          }else{
+
+            /* Free the separators of the next level, if required. */
+            if( pLevel->pMerge->nInput > pLevel->nRight ){
+              assert( pLevel->pNext->lhs.iRoot );
+              pLevel->pNext->lhs.iRoot = 0;
+            }
+
+            /* Zero the right-hand-side of pLevel */
+            lsmFree(pDb->pEnv, pLevel->aRhs);
+            pLevel->nRight = 0;
+            pLevel->aRhs = 0;
+
+            /* Free the Merge object */
+            lsmFree(pDb->pEnv, pLevel->pMerge);
+            pLevel->pMerge = 0;
+          }
+
+          if( bSave && rc==LSM_OK ){
+            pDb->bIncrMerge = 0;
+            rc = lsmSaveWorker(pDb, 0);
+          }
+        }
+      }
+
+      /* Clean up the MergeWorker object initialized above. If no error
+      ** has occurred, invoke the work-hook to inform the application that
+      ** the database structure has changed. */
+      mergeWorkerShutdown(&mergeworker, &rc);
+      pDb->bIncrMerge = 0;
+      if( rc==LSM_OK ) sortedInvokeWorkHook(pDb);
+
+#if LSM_LOG_STRUCTURE
+      lsmSortedDumpStructure(pDb, pDb->pWorker, LSM_LOG_DATA, 0, "work");
+#endif
+      assertBtreeOk(pDb, &pLevel->lhs);
+      assertRunInOrder(pDb, &pLevel->lhs);
+
+      /* If bFlush is true and the database is no longer considered "full",
+      ** break out of the loop even if nRemaining is still greater than
+      ** zero. The caller has an in-memory tree to flush to disk.  */
+      if( bFlush && sortedDbIsFull(pDb)==0 ) break;
+    }
+  }
+
+  if( pnWrite ) *pnWrite = (nWork - nRemaining);
+  pWorker->nWrite += (nWork - nRemaining);
+
+#ifdef LSM_LOG_WORK
+  lsmLogMessage(pDb, rc, "sortedWork(): %d pages", (nWork-nRemaining));
+#endif
+  return rc;
+}
+
+/*
+** The database connection passed as the first argument must be a worker
+** connection. This function checks if there exists an "old" in-memory tree
+** ready to be flushed to disk. If so, true is returned. Otherwise false.
+**
+** If an error occurs, *pRc is set to an LSM error code before returning.
+** It is assumed that *pRc is set to LSM_OK when this function is called.
+*/
+static int sortedTreeHasOld(lsm_db *pDb, int *pRc){
+  int rc = LSM_OK;
+  int bRet = 0;
+
+  assert( pDb->pWorker );
+  if( *pRc==LSM_OK ){
+    if( rc==LSM_OK 
+        && pDb->treehdr.iOldShmid
+        && pDb->treehdr.iOldLog!=pDb->pWorker->iLogOff 
+      ){
+      bRet = 1;
+    }else{
+      bRet = 0;
+    }
+    *pRc = rc;
+  }
+  assert( *pRc==LSM_OK || bRet==0 );
+  return bRet;
+}
+
+/*
+** Create a new free-list only top-level segment. Return LSM_OK if successful
+** or an LSM error code if some error occurs.
+*/
+static int sortedNewFreelistOnly(lsm_db *pDb){
+  return sortedNewToplevel(pDb, TREE_NONE, 0);
+}
+
+int lsmSaveWorker(lsm_db *pDb, int bFlush){
+  Snapshot *p = pDb->pWorker;
+  if( p->freelist.nEntry>pDb->nMaxFreelist ){
+    int rc = sortedNewFreelistOnly(pDb);
+    if( rc!=LSM_OK ) return rc;
+  }
+  return lsmCheckpointSaveWorker(pDb, bFlush);
+}
+
+static int doLsmSingleWork(
+  lsm_db *pDb, 
+  int bShutdown,
+  int nMerge,                     /* Minimum segments to merge together */
+  int nPage,                      /* Number of pages to write to disk */
+  int *pnWrite,                   /* OUT: Pages actually written to disk */
+  int *pbCkpt                     /* OUT: True if an auto-checkpoint is req. */
+){
+  Snapshot *pWorker;              /* Worker snapshot */
+  int rc = LSM_OK;                /* Return code */
+  int bDirty = 0;
+  int nMax = nPage;               /* Maximum pages to write to disk */
+  int nRem = nPage;
+  int bCkpt = 0;
+
+  assert( nPage>0 );
+
+  /* Open the worker 'transaction'. It will be closed before this function
+  ** returns.  */
+  assert( pDb->pWorker==0 );
+  rc = lsmBeginWork(pDb);
+  if( rc!=LSM_OK ) return rc;
+  pWorker = pDb->pWorker;
+
+  /* If this connection is doing auto-checkpoints, set nMax (and nRem) so
+  ** that this call stops writing when the auto-checkpoint is due. The
+  ** caller will do the checkpoint, then possibly call this function again. */
+  if( bShutdown==0 && pDb->nAutockpt ){
+    u32 nSync;
+    u32 nUnsync;
+    int nPgsz;
+
+    lsmCheckpointSynced(pDb, 0, 0, &nSync);
+    nUnsync = lsmCheckpointNWrite(pDb->pShmhdr->aSnap1, 0);
+    nPgsz = lsmCheckpointPgsz(pDb->pShmhdr->aSnap1);
+
+    nMax = (int)LSM_MIN(nMax, (pDb->nAutockpt/nPgsz) - (int)(nUnsync-nSync));
+    if( nMax<nRem ){
+      bCkpt = 1;
+      nRem = LSM_MAX(nMax, 0);
+    }
+  }
+
+  /* If there exists in-memory data ready to be flushed to disk, attempt
+  ** to flush it now.  */
+  if( pDb->nTransOpen==0 ){
+    rc = lsmTreeLoadHeader(pDb, 0);
+  }
+  if( sortedTreeHasOld(pDb, &rc) ){
+    /* sortedDbIsFull() returns non-zero if either (a) there are too many
+    ** levels in total in the db, or (b) there are too many levels with the
+    ** the same age in the db. Either way, call sortedWork() to merge 
+    ** existing segments together until this condition is cleared.  */
+    if( sortedDbIsFull(pDb) ){
+      int nPg = 0;
+      rc = sortedWork(pDb, nRem, nMerge, 1, &nPg);
+      nRem -= nPg;
+      assert( rc!=LSM_OK || nRem<=0 || !sortedDbIsFull(pDb) );
+      bDirty = 1;
+    }
+
+    if( rc==LSM_OK && nRem>0 ){
+      int nPg = 0;
+      rc = sortedNewToplevel(pDb, TREE_OLD, &nPg);
+      nRem -= nPg;
+      if( rc==LSM_OK ){
+        if( pDb->nTransOpen>0 ){
+          lsmTreeDiscardOld(pDb);
+        }
+        rc = lsmSaveWorker(pDb, 1);
+        bDirty = 0;
+      }
+    }
+  }
+
+  /* If nPage is still greater than zero, do some merging. */
+  if( rc==LSM_OK && nRem>0 && bShutdown==0 ){
+    int nPg = 0;
+    rc = sortedWork(pDb, nRem, nMerge, 0, &nPg);
+    nRem -= nPg;
+    if( nPg ) bDirty = 1;
+  }
+
+  /* If the in-memory part of the free-list is too large, write a new 
+  ** top-level containing just the in-memory free-list entries to disk. */
+  if( rc==LSM_OK && pDb->pWorker->freelist.nEntry > pDb->nMaxFreelist ){
+    while( rc==LSM_OK && lsmDatabaseFull(pDb) ){
+      int nPg = 0;
+      rc = sortedWork(pDb, 16, nMerge, 1, &nPg);
+      nRem -= nPg;
+    }
+    if( rc==LSM_OK ){
+      rc = sortedNewFreelistOnly(pDb);
+    }
+    bDirty = 1;
+  }
+
+  if( rc==LSM_OK ){
+    *pnWrite = (nMax - nRem);
+    *pbCkpt = (bCkpt && nRem<=0);
+    if( nMerge==1 && pDb->nAutockpt>0 && *pnWrite>0
+     && pWorker->pLevel 
+     && pWorker->pLevel->nRight==0 
+     && pWorker->pLevel->pNext==0 
+    ){
+      *pbCkpt = 1;
+    }
+  }
+
+  if( rc==LSM_OK && bDirty ){
+    lsmFinishWork(pDb, 0, &rc);
+  }else{
+    int rcdummy = LSM_BUSY;
+    lsmFinishWork(pDb, 0, &rcdummy);
+    *pnWrite = 0;
+  }
+  assert( pDb->pWorker==0 );
+  return rc;
+}
+
+static int doLsmWork(lsm_db *pDb, int nMerge, int nPage, int *pnWrite){
+  int rc = LSM_OK;                /* Return code */
+  int nWrite = 0;                 /* Number of pages written */
+
+  assert( nMerge>=1 );
+
+  if( nPage!=0 ){
+    int bCkpt = 0;
+    do {
+      int nThis = 0;
+      int nReq = (nPage>=0) ? (nPage-nWrite) : ((int)0x7FFFFFFF);
+
+      bCkpt = 0;
+      rc = doLsmSingleWork(pDb, 0, nMerge, nReq, &nThis, &bCkpt);
+      nWrite += nThis;
+      if( rc==LSM_OK && bCkpt ){
+        rc = lsm_checkpoint(pDb, 0);
+      }
+    }while( rc==LSM_OK && bCkpt && (nWrite<nPage || nPage<0) );
+  }
+
+  if( pnWrite ){
+    if( rc==LSM_OK ){
+      *pnWrite = nWrite;
+    }else{
+      *pnWrite = 0;
+    }
+  }
+  return rc;
+}
+
+/*
+** Perform work to merge database segments together.
+*/
+int lsm_work(lsm_db *pDb, int nMerge, int nKB, int *pnWrite){
+  int rc;                         /* Return code */
+  int nPgsz;                      /* Nominal page size in bytes */
+  int nPage;                      /* Equivalent of nKB in pages */
+  int nWrite = 0;                 /* Number of pages written */
+
+  /* This function may not be called if pDb has an open read or write
+  ** transaction. Return LSM_MISUSE if an application attempts this.  */
+  if( pDb->nTransOpen || pDb->pCsr ) return LSM_MISUSE_BKPT;
+  if( nMerge<=0 ) nMerge = pDb->nMerge;
+
+  lsmFsPurgeCache(pDb->pFS);
+
+  /* Convert from KB to pages */
+  nPgsz = lsmFsPageSize(pDb->pFS);
+  if( nKB>=0 ){
+    nPage = ((i64)nKB * 1024 + nPgsz - 1) / nPgsz;
+  }else{
+    nPage = -1;
+  }
+
+  rc = doLsmWork(pDb, nMerge, nPage, &nWrite);
+  
+  if( pnWrite ){
+    /* Convert back from pages to KB */
+    *pnWrite = (int)(((i64)nWrite * 1024 + nPgsz - 1) / nPgsz);
+  }
+  return rc;
+}
+
+int lsm_flush(lsm_db *db){
+  int rc;
+
+  if( db->nTransOpen>0 || db->pCsr ){
+    rc = LSM_MISUSE_BKPT;
+  }else{
+    rc = lsmBeginWriteTrans(db);
+    if( rc==LSM_OK ){
+      lsmFlushTreeToDisk(db);
+      lsmTreeDiscardOld(db);
+      lsmTreeMakeOld(db);
+      lsmTreeDiscardOld(db);
+    }
+
+    if( rc==LSM_OK ){
+      rc = lsmFinishWriteTrans(db, 1);
+    }else{
+      lsmFinishWriteTrans(db, 0);
+    }
+    lsmFinishReadTrans(db);
+  }
+
+  return rc;
+}
+
+/*
+** This function is called in auto-work mode to perform merging work on
+** the data structure. It performs enough merging work to prevent the
+** height of the tree from growing indefinitely assuming that roughly
+** nUnit database pages worth of data have been written to the database
+** (i.e. the in-memory tree) since the last call.
+*/
+int lsmSortedAutoWork(
+  lsm_db *pDb,                    /* Database handle */
+  int nUnit                       /* Pages of data written to in-memory tree */
+){
+  int rc = LSM_OK;                /* Return code */
+  int nDepth = 0;                 /* Current height of tree (longest path) */
+  Level *pLevel;                  /* Used to iterate through levels */
+  int bRestore = 0;
+
+  assert( pDb->pWorker==0 );
+  assert( pDb->nTransOpen>0 );
+
+  /* Determine how many units of work to do before returning. One unit of
+  ** work is achieved by writing one page (~4KB) of merged data.  */
+  for(pLevel=lsmDbSnapshotLevel(pDb->pClient); pLevel; pLevel=pLevel->pNext){
+    /* nDepth += LSM_MAX(1, pLevel->nRight); */
+    nDepth += 1;
+  }
+  if( lsmTreeHasOld(pDb) ){
+    nDepth += 1;
+    bRestore = 1;
+    rc = lsmSaveCursors(pDb);
+    if( rc!=LSM_OK ) return rc;
+  }
+
+  if( nDepth>0 ){
+    int nRemaining;               /* Units of work to do before returning */
+
+    nRemaining = nUnit * nDepth;
+#ifdef LSM_LOG_WORK
+    lsmLogMessage(pDb, rc, "lsmSortedAutoWork(): %d*%d = %d pages", 
+        nUnit, nDepth, nRemaining);
+#endif
+    assert( nRemaining>=0 );
+    rc = doLsmWork(pDb, pDb->nMerge, nRemaining, 0);
+    if( rc==LSM_BUSY ) rc = LSM_OK;
+
+    if( bRestore && pDb->pCsr ){
+      lsmMCursorFreeCache(pDb);
+      lsmFreeSnapshot(pDb->pEnv, pDb->pClient);
+      pDb->pClient = 0;
+      if( rc==LSM_OK ){
+        rc = lsmCheckpointLoad(pDb, 0);
+      }
+      if( rc==LSM_OK ){
+        rc = lsmCheckpointDeserialize(pDb, 0, pDb->aSnapshot, &pDb->pClient);
+      }
+      if( rc==LSM_OK ){
+        rc = lsmRestoreCursors(pDb);
+      }
+    }
+  }
+
+  return rc;
+}
+
+/*
+** This function is only called during system shutdown. The contents of
+** any in-memory trees present (old or current) are written out to disk.
+*/
+int lsmFlushTreeToDisk(lsm_db *pDb){
+  int rc;
+
+  rc = lsmBeginWork(pDb);
+  while( rc==LSM_OK && sortedDbIsFull(pDb) ){
+    rc = sortedWork(pDb, 256, pDb->nMerge, 1, 0);
+  }
+
+  if( rc==LSM_OK ){
+    rc = sortedNewToplevel(pDb, TREE_BOTH, 0);
+  }
+
+  lsmFinishWork(pDb, 1, &rc);
+  return rc;
+}
+
+/*
+** Return a string representation of the segment passed as the only argument.
+** Space for the returned string is allocated using lsmMalloc(), and should
+** be freed by the caller using lsmFree().
+*/
+static char *segToString(lsm_env *pEnv, Segment *pSeg, int nMin){
+  LsmPgno nSize = pSeg->nSize;
+  LsmPgno iRoot = pSeg->iRoot;
+  LsmPgno iFirst = pSeg->iFirst;
+  LsmPgno iLast = pSeg->iLastPg;
+  char *z;
+
+  char *z1;
+  char *z2;
+  int nPad;
+
+  z1 = lsmMallocPrintf(pEnv, "%d.%d", iFirst, iLast);
+  if( iRoot ){
+    z2 = lsmMallocPrintf(pEnv, "root=%lld", iRoot);
+  }else{
+    z2 = lsmMallocPrintf(pEnv, "size=%lld", nSize);
+  }
+
+  nPad = nMin - 2 - strlen(z1) - 1 - strlen(z2);
+  nPad = LSM_MAX(0, nPad);
+
+  if( iRoot ){
+    z = lsmMallocPrintf(pEnv, "/%s %*s%s\\", z1, nPad, "", z2);
+  }else{
+    z = lsmMallocPrintf(pEnv, "|%s %*s%s|", z1, nPad, "", z2);
+  }
+  lsmFree(pEnv, z1);
+  lsmFree(pEnv, z2);
+
+  return z;
+}
+
+static int fileToString(
+  lsm_db *pDb,                    /* For xMalloc() */
+  char *aBuf, 
+  int nBuf, 
+  int nMin,
+  Segment *pSeg
+){
+  int i = 0;
+  if( pSeg ){
+    char *zSeg;
+
+    zSeg = segToString(pDb->pEnv, pSeg, nMin);
+    snprintf(&aBuf[i], nBuf-i, "%s", zSeg);
+    i += strlen(&aBuf[i]);
+    lsmFree(pDb->pEnv, zSeg);
+
+#ifdef LSM_LOG_FREELIST
+    lsmInfoArrayStructure(pDb, 1, pSeg->iFirst, &zSeg);
+    snprintf(&aBuf[i], nBuf-1, "    (%s)", zSeg);
+    i += strlen(&aBuf[i]);
+    lsmFree(pDb->pEnv, zSeg);
+#endif
+    aBuf[nBuf] = 0;
+  }else{
+    aBuf[0] = '\0';
+  }
+
+  return i;
+}
+
+void sortedDumpPage(lsm_db *pDb, Segment *pRun, Page *pPg, int bVals){
+  LsmBlob blob = {0, 0, 0};       /* LsmBlob used for keys */
+  LsmString s;
+  int i;
+
+  int nRec;
+  LsmPgno iPtr;
+  int flags;
+  u8 *aData;
+  int nData;
+
+  aData = fsPageData(pPg, &nData);
+
+  nRec = pageGetNRec(aData, nData);
+  iPtr = pageGetPtr(aData, nData);
+  flags = pageGetFlags(aData, nData);
+
+  lsmStringInit(&s, pDb->pEnv);
+  lsmStringAppendf(&s,"nCell=%d iPtr=%lld flags=%d {", nRec, iPtr, flags);
+  if( flags&SEGMENT_BTREE_FLAG ) iPtr = 0;
+
+  for(i=0; i<nRec; i++){
+    Page *pRef = 0;               /* Pointer to page iRef */
+    int iChar;
+    u8 *aKey; int nKey = 0;       /* Key */
+    u8 *aVal = 0; int nVal = 0;   /* Value */
+    int iTopic;
+    u8 *aCell;
+    i64 iPgPtr;
+    int eType;
+
+    aCell = pageGetCell(aData, nData, i);
+    eType = *aCell++;
+    assert( (flags & SEGMENT_BTREE_FLAG) || eType!=0 );
+    aCell += lsmVarintGet64(aCell, &iPgPtr);
+
+    if( eType==0 ){
+      LsmPgno iRef;               /* Page number of referenced page */
+      aCell += lsmVarintGet64(aCell, &iRef);
+      lsmFsDbPageGet(pDb->pFS, pRun, iRef, &pRef);
+      aKey = pageGetKey(pRun, pRef, 0, &iTopic, &nKey, &blob);
+    }else{
+      aCell += lsmVarintGet32(aCell, &nKey);
+      if( rtIsWrite(eType) ) aCell += lsmVarintGet32(aCell, &nVal);
+      sortedReadData(0, pPg, (aCell-aData), nKey+nVal, (void **)&aKey, &blob);
+      aVal = &aKey[nKey];
+      iTopic = eType;
+    }
+
+    lsmStringAppendf(&s, "%s%2X:", (i==0?"":" "), iTopic);
+    for(iChar=0; iChar<nKey; iChar++){
+      lsmStringAppendf(&s, "%c", isalnum(aKey[iChar]) ? aKey[iChar] : '.');
+    }
+    if( nVal>0 && bVals ){
+      lsmStringAppendf(&s, "##");
+      for(iChar=0; iChar<nVal; iChar++){
+        lsmStringAppendf(&s, "%c", isalnum(aVal[iChar]) ? aVal[iChar] : '.');
+      }
+    }
+
+    lsmStringAppendf(&s, " %lld", iPgPtr+iPtr);
+    lsmFsPageRelease(pRef);
+  }
+  lsmStringAppend(&s, "}", 1);
+
+  lsmLogMessage(pDb, LSM_OK, "      Page %d: %s", lsmFsPageNumber(pPg), s.z);
+  lsmStringClear(&s);
+
+  sortedBlobFree(&blob);
+}
+
+static void infoCellDump(
+  lsm_db *pDb,                    /* Database handle */
+  Segment *pSeg,                  /* Segment page belongs to */
+  int bIndirect,                  /* True to follow indirect refs */
+  Page *pPg,
+  int iCell,
+  int *peType,
+  int *piPgPtr,
+  u8 **paKey, int *pnKey,
+  u8 **paVal, int *pnVal,
+  LsmBlob *pBlob
+){
+  u8 *aData; int nData;           /* Page data */
+  u8 *aKey; int nKey = 0;         /* Key */
+  u8 *aVal = 0; int nVal = 0;     /* Value */
+  int eType;
+  int iPgPtr;
+  Page *pRef = 0;                 /* Pointer to page iRef */
+  u8 *aCell;
+
+  aData = fsPageData(pPg, &nData);
+
+  aCell = pageGetCell(aData, nData, iCell);
+  eType = *aCell++;
+  aCell += lsmVarintGet32(aCell, &iPgPtr);
+
+  if( eType==0 ){
+    int dummy;
+    LsmPgno iRef;                 /* Page number of referenced page */
+    aCell += lsmVarintGet64(aCell, &iRef);
+    if( bIndirect ){
+      lsmFsDbPageGet(pDb->pFS, pSeg, iRef, &pRef);
+      pageGetKeyCopy(pDb->pEnv, pSeg, pRef, 0, &dummy, pBlob);
+      aKey = (u8 *)pBlob->pData;
+      nKey = pBlob->nData;
+      lsmFsPageRelease(pRef);
+    }else{
+      aKey = (u8 *)"<indirect>";
+      nKey = 11;
+    }
+  }else{
+    aCell += lsmVarintGet32(aCell, &nKey);
+    if( rtIsWrite(eType) ) aCell += lsmVarintGet32(aCell, &nVal);
+    sortedReadData(pSeg, pPg, (aCell-aData), nKey+nVal, (void **)&aKey, pBlob);
+    aVal = &aKey[nKey];
+  }
+
+  if( peType ) *peType = eType;
+  if( piPgPtr ) *piPgPtr = iPgPtr;
+  if( paKey ) *paKey = aKey;
+  if( paVal ) *paVal = aVal;
+  if( pnKey ) *pnKey = nKey;
+  if( pnVal ) *pnVal = nVal;
+}
+
+static int infoAppendBlob(LsmString *pStr, int bHex, u8 *z, int n){
+  int iChar;
+  for(iChar=0; iChar<n; iChar++){
+    if( bHex ){
+      lsmStringAppendf(pStr, "%02X", z[iChar]);
+    }else{
+      lsmStringAppendf(pStr, "%c", isalnum(z[iChar]) ?z[iChar] : '.');
+    }
+  }
+  return LSM_OK;
+}
+
+#define INFO_PAGE_DUMP_DATA     0x01
+#define INFO_PAGE_DUMP_VALUES   0x02
+#define INFO_PAGE_DUMP_HEX      0x04
+#define INFO_PAGE_DUMP_INDIRECT 0x08
+
+static int infoPageDump(
+  lsm_db *pDb,                    /* Database handle */
+  LsmPgno iPg,                    /* Page number of page to dump */
+  int flags,
+  char **pzOut                    /* OUT: lsmMalloc'd string */
+){
+  int rc = LSM_OK;                /* Return code */
+  Page *pPg = 0;                  /* Handle for page iPg */
+  int i, j;                       /* Loop counters */
+  const int perLine = 16;         /* Bytes per line in the raw hex dump */
+  Segment *pSeg = 0;
+  Snapshot *pSnap;
+
+  int bValues = (flags & INFO_PAGE_DUMP_VALUES);
+  int bHex = (flags & INFO_PAGE_DUMP_HEX);
+  int bData = (flags & INFO_PAGE_DUMP_DATA);
+  int bIndirect = (flags & INFO_PAGE_DUMP_INDIRECT);
+
+  *pzOut = 0;
+  if( iPg==0 ) return LSM_ERROR;
+
+  assert( pDb->pClient || pDb->pWorker );
+  pSnap = pDb->pClient;
+  if( pSnap==0 ) pSnap = pDb->pWorker;
+  if( pSnap->redirect.n>0 ){
+    Level *pLvl;
+    int bUse = 0;
+    for(pLvl=pSnap->pLevel; pLvl->pNext; pLvl=pLvl->pNext);
+    pSeg = (pLvl->nRight==0 ? &pLvl->lhs : &pLvl->aRhs[pLvl->nRight-1]);
+    rc = lsmFsSegmentContainsPg(pDb->pFS, pSeg, iPg, &bUse);
+    if( bUse==0 ){
+      pSeg = 0;
+    }
+  }
+
+  /* iPg is a real page number (not subject to redirection). So it is safe 
+  ** to pass a NULL in place of the segment pointer as the second argument
+  ** to lsmFsDbPageGet() here.  */
+  if( rc==LSM_OK ){
+    rc = lsmFsDbPageGet(pDb->pFS, 0, iPg, &pPg);
+  }
+
+  if( rc==LSM_OK ){
+    LsmBlob blob = {0, 0, 0, 0};
+    int nKeyWidth = 0;
+    LsmString str;
+    int nRec;
+    LsmPgno iPtr;
+    int flags2;
+    int iCell;
+    u8 *aData; int nData;         /* Page data and size thereof */
+
+    aData = fsPageData(pPg, &nData);
+    nRec = pageGetNRec(aData, nData);
+    iPtr = pageGetPtr(aData, nData);
+    flags2 = pageGetFlags(aData, nData);
+
+    lsmStringInit(&str, pDb->pEnv);
+    lsmStringAppendf(&str, "Page : %lld  (%d bytes)\n", iPg, nData);
+    lsmStringAppendf(&str, "nRec : %d\n", nRec);
+    lsmStringAppendf(&str, "iPtr : %lld\n", iPtr);
+    lsmStringAppendf(&str, "flags: %04x\n", flags2);
+    lsmStringAppendf(&str, "\n");
+
+    for(iCell=0; iCell<nRec; iCell++){
+      int nKey;
+      infoCellDump(
+          pDb, pSeg, bIndirect, pPg, iCell, 0, 0, 0, &nKey, 0, 0, &blob
+      );
+      if( nKey>nKeyWidth ) nKeyWidth = nKey;
+    }
+    if( bHex ) nKeyWidth = nKeyWidth * 2;
+
+    for(iCell=0; iCell<nRec; iCell++){
+      u8 *aKey; int nKey = 0;       /* Key */
+      u8 *aVal; int nVal = 0;       /* Value */
+      int iPgPtr;
+      int eType;
+      LsmPgno iAbsPtr;
+      char zFlags[8];
+
+      infoCellDump(pDb, pSeg, bIndirect, pPg, iCell, &eType, &iPgPtr,
+          &aKey, &nKey, &aVal, &nVal, &blob
+      );
+      iAbsPtr = iPgPtr + ((flags2 & SEGMENT_BTREE_FLAG) ? 0 : iPtr);
+
+      lsmFlagsToString(eType, zFlags);
+      lsmStringAppendf(&str, "%s %d (%s) ", 
+          zFlags, iAbsPtr, (rtTopic(eType) ? "sys" : "usr")
+      );
+      infoAppendBlob(&str, bHex, aKey, nKey); 
+      if( nVal>0 && bValues ){
+        lsmStringAppendf(&str, "%*s", nKeyWidth - (nKey*(1+bHex)), "");
+        lsmStringAppendf(&str, " ");
+        infoAppendBlob(&str, bHex, aVal, nVal); 
+      }
+      if( rtTopic(eType) ){
+        int iBlk = (int)~lsmGetU32(aKey);
+        lsmStringAppendf(&str, "  (block=%d", iBlk);
+        if( nVal>0 ){
+          i64 iSnap = lsmGetU64(aVal);
+          lsmStringAppendf(&str, " snapshot=%lld", iSnap);
+        }
+        lsmStringAppendf(&str, ")");
+      }
+      lsmStringAppendf(&str, "\n");
+    }
+
+    if( bData ){
+      lsmStringAppendf(&str, "\n-------------------" 
+          "-------------------------------------------------------------\n");
+      lsmStringAppendf(&str, "Page %d\n",
+          iPg, (iPg-1)*nData, iPg*nData - 1);
+      for(i=0; i<nData; i += perLine){
+        lsmStringAppendf(&str, "%04x: ", i);
+        for(j=0; j<perLine; j++){
+          if( i+j>nData ){
+            lsmStringAppendf(&str, "   ");
+          }else{
+            lsmStringAppendf(&str, "%02x ", aData[i+j]);
+          }
+        }
+        lsmStringAppendf(&str, "  ");
+        for(j=0; j<perLine; j++){
+          if( i+j>nData ){
+            lsmStringAppendf(&str, " ");
+          }else{
+            lsmStringAppendf(&str,"%c", isprint(aData[i+j]) ? aData[i+j] : '.');
+          }
+        }
+        lsmStringAppendf(&str,"\n");
+      }
+    }
+
+    *pzOut = str.z;
+    sortedBlobFree(&blob);
+    lsmFsPageRelease(pPg);
+  }
+
+  return rc;
+}
+
+int lsmInfoPageDump(
+  lsm_db *pDb,                    /* Database handle */
+  LsmPgno iPg,                    /* Page number of page to dump */
+  int bHex,                       /* True to output key/value in hex form */
+  char **pzOut                    /* OUT: lsmMalloc'd string */
+){
+  int flags = INFO_PAGE_DUMP_DATA | INFO_PAGE_DUMP_VALUES;
+  if( bHex ) flags |= INFO_PAGE_DUMP_HEX;
+  return infoPageDump(pDb, iPg, flags, pzOut);
+}
+
+void sortedDumpSegment(lsm_db *pDb, Segment *pRun, int bVals){
+  assert( pDb->xLog );
+  if( pRun && pRun->iFirst ){
+    int flags = (bVals ? INFO_PAGE_DUMP_VALUES : 0);
+    char *zSeg;
+    Page *pPg;
+
+    zSeg = segToString(pDb->pEnv, pRun, 0);
+    lsmLogMessage(pDb, LSM_OK, "Segment: %s", zSeg);
+    lsmFree(pDb->pEnv, zSeg);
+
+    lsmFsDbPageGet(pDb->pFS, pRun, pRun->iFirst, &pPg);
+    while( pPg ){
+      Page *pNext;
+      char *z = 0;
+      infoPageDump(pDb, lsmFsPageNumber(pPg), flags, &z);
+      lsmLogMessage(pDb, LSM_OK, "%s", z);
+      lsmFree(pDb->pEnv, z);
+#if 0
+      sortedDumpPage(pDb, pRun, pPg, bVals);
+#endif
+      lsmFsDbPageNext(pRun, pPg, 1, &pNext);
+      lsmFsPageRelease(pPg);
+      pPg = pNext;
+    }
+  }
+}
+
+/*
+** Invoke the log callback zero or more times with messages that describe
+** the current database structure.
+*/
+void lsmSortedDumpStructure(
+  lsm_db *pDb,                    /* Database handle (used for xLog callback) */
+  Snapshot *pSnap,                /* Snapshot to dump */
+  int bKeys,                      /* Output the keys from each segment */
+  int bVals,                      /* Output the values from each segment */
+  const char *zWhy                /* Caption to print near top of dump */
+){
+  Snapshot *pDump = pSnap;
+  Level *pTopLevel;
+  char *zFree = 0;
+
+  assert( pSnap );
+  pTopLevel = lsmDbSnapshotLevel(pDump);
+  if( pDb->xLog && pTopLevel ){
+    static int nCall = 0;
+    Level *pLevel;
+    int iLevel = 0;
+
+    nCall++;
+    lsmLogMessage(pDb, LSM_OK, "Database structure %d (%s)", nCall, zWhy);
+
+#if 0
+    if( nCall==1031 || nCall==1032 ) bKeys=1;
+#endif
+
+    for(pLevel=pTopLevel; pLevel; pLevel=pLevel->pNext){
+      char zLeft[1024];
+      char zRight[1024];
+      int i = 0;
+
+      Segment *aLeft[24];  
+      Segment *aRight[24];
+
+      int nLeft = 0;
+      int nRight = 0;
+
+      Segment *pSeg = &pLevel->lhs;
+      aLeft[nLeft++] = pSeg;
+
+      for(i=0; i<pLevel->nRight; i++){
+        aRight[nRight++] = &pLevel->aRhs[i];
+      }
+
+#ifdef LSM_LOG_FREELIST
+      if( nRight ){
+        memmove(&aRight[1], aRight, sizeof(aRight[0])*nRight);
+        aRight[0] = 0;
+        nRight++;
+      }
+#endif
+
+      for(i=0; i<nLeft || i<nRight; i++){
+        int iPad = 0;
+        char zLevel[32];
+        zLeft[0] = '\0';
+        zRight[0] = '\0';
+
+        if( i<nLeft ){ 
+          fileToString(pDb, zLeft, sizeof(zLeft), 24, aLeft[i]); 
+        }
+        if( i<nRight ){ 
+          fileToString(pDb, zRight, sizeof(zRight), 24, aRight[i]); 
+        }
+
+        if( i==0 ){
+          snprintf(zLevel, sizeof(zLevel), "L%d: (age=%d) (flags=%.4x)",
+              iLevel, (int)pLevel->iAge, (int)pLevel->flags
+          );
+        }else{
+          zLevel[0] = '\0';
+        }
+
+        if( nRight==0 ){
+          iPad = 10;
+        }
+
+        lsmLogMessage(pDb, LSM_OK, "% 25s % *s% -35s %s", 
+            zLevel, iPad, "", zLeft, zRight
+        );
+      }
+
+      iLevel++;
+    }
+
+    if( bKeys ){
+      for(pLevel=pTopLevel; pLevel; pLevel=pLevel->pNext){
+        int i;
+        sortedDumpSegment(pDb, &pLevel->lhs, bVals);
+        for(i=0; i<pLevel->nRight; i++){
+          sortedDumpSegment(pDb, &pLevel->aRhs[i], bVals);
+        }
+      }
+    }
+  }
+
+  lsmInfoFreelist(pDb, &zFree);
+  lsmLogMessage(pDb, LSM_OK, "Freelist: %s", zFree);
+  lsmFree(pDb->pEnv, zFree);
+
+  assert( lsmFsIntegrityCheck(pDb) );
+}
+
+void lsmSortedFreeLevel(lsm_env *pEnv, Level *pLevel){
+  Level *pNext;
+  Level *p;
+
+  for(p=pLevel; p; p=pNext){
+    pNext = p->pNext;
+    sortedFreeLevel(pEnv, p);
+  }
+}
+
+void lsmSortedSaveTreeCursors(lsm_db *pDb){
+  MultiCursor *pCsr;
+  for(pCsr=pDb->pCsr; pCsr; pCsr=pCsr->pNext){
+    lsmTreeCursorSave(pCsr->apTreeCsr[0]);
+    lsmTreeCursorSave(pCsr->apTreeCsr[1]);
+  }
+}
+
+void lsmSortedExpandBtreePage(Page *pPg, int nOrig){
+  u8 *aData;
+  int nData;
+  int nEntry;
+  int iHdr;
+
+  aData = lsmFsPageData(pPg, &nData);
+  nEntry = pageGetNRec(aData, nOrig);
+  iHdr = SEGMENT_EOF(nOrig, nEntry);
+  memmove(&aData[iHdr + (nData-nOrig)], &aData[iHdr], nOrig-iHdr);
+}
+
+#ifdef LSM_DEBUG_EXPENSIVE
+static void assertRunInOrder(lsm_db *pDb, Segment *pSeg){
+  Page *pPg = 0;
+  LsmBlob blob1 = {0, 0, 0, 0};
+  LsmBlob blob2 = {0, 0, 0, 0};
+
+  lsmFsDbPageGet(pDb->pFS, pSeg, pSeg->iFirst, &pPg);
+  while( pPg ){
+    u8 *aData; int nData;
+    Page *pNext;
+
+    aData = lsmFsPageData(pPg, &nData);
+    if( 0==(pageGetFlags(aData, nData) & SEGMENT_BTREE_FLAG) ){
+      int i;
+      int nRec = pageGetNRec(aData, nData);
+      for(i=0; i<nRec; i++){
+        int iTopic1, iTopic2;
+        pageGetKeyCopy(pDb->pEnv, pSeg, pPg, i, &iTopic1, &blob1);
+
+        if( i==0 && blob2.nData ){
+          assert( sortedKeyCompare(
+                pDb->xCmp, iTopic2, blob2.pData, blob2.nData,
+                iTopic1, blob1.pData, blob1.nData
+          )<0 );
+        }
+
+        if( i<(nRec-1) ){
+          pageGetKeyCopy(pDb->pEnv, pSeg, pPg, i+1, &iTopic2, &blob2);
+          assert( sortedKeyCompare(
+                pDb->xCmp, iTopic1, blob1.pData, blob1.nData,
+                iTopic2, blob2.pData, blob2.nData
+          )<0 );
+        }
+      }
+    }
+
+    lsmFsDbPageNext(pSeg, pPg, 1, &pNext);
+    lsmFsPageRelease(pPg);
+    pPg = pNext;
+  }
+
+  sortedBlobFree(&blob1);
+  sortedBlobFree(&blob2);
+}
+#endif
+
+#ifdef LSM_DEBUG_EXPENSIVE
+/*
+** This function is only included in the build if LSM_DEBUG_EXPENSIVE is 
+** defined. Its only purpose is to evaluate various assert() statements to 
+** verify that the database is well formed in certain respects.
+**
+** More specifically, it checks that the array pOne contains the required 
+** pointers to pTwo. Array pTwo must be a main array. pOne may be either a 
+** separators array or another main array. If pOne does not contain the 
+** correct set of pointers, an assert() statement fails.
+*/
+static int assertPointersOk(
+  lsm_db *pDb,                    /* Database handle */
+  Segment *pOne,                  /* Segment containing pointers */
+  Segment *pTwo,                  /* Segment containing pointer targets */
+  int bRhs                        /* True if pTwo may have been Gobble()d */
+){
+  int rc = LSM_OK;                /* Error code */
+  SegmentPtr ptr1;                /* Iterates through pOne */
+  SegmentPtr ptr2;                /* Iterates through pTwo */
+  LsmPgno iPrev;
+
+  assert( pOne && pTwo );
+
+  memset(&ptr1, 0, sizeof(ptr1));
+  memset(&ptr2, 0, sizeof(ptr1));
+  ptr1.pSeg = pOne;
+  ptr2.pSeg = pTwo;
+  segmentPtrEndPage(pDb->pFS, &ptr1, 0, &rc);
+  segmentPtrEndPage(pDb->pFS, &ptr2, 0, &rc);
+
+  /* Check that the footer pointer of the first page of pOne points to
+  ** the first page of pTwo. */
+  iPrev = pTwo->iFirst;
+  if( ptr1.iPtr!=iPrev && !bRhs ){
+    assert( 0 );
+  }
+
+  if( rc==LSM_OK && ptr1.nCell>0 ){
+    rc = segmentPtrLoadCell(&ptr1, 0);
+  }
+      
+  while( rc==LSM_OK && ptr2.pPg ){
+    LsmPgno iThis;
+
+    /* Advance to the next page of segment pTwo that contains at least
+    ** one cell. Break out of the loop if the iterator reaches EOF.  */
+    do{
+      rc = segmentPtrNextPage(&ptr2, 1);
+      assert( rc==LSM_OK );
+    }while( rc==LSM_OK && ptr2.pPg && ptr2.nCell==0 );
+    if( rc!=LSM_OK || ptr2.pPg==0 ) break;
+    iThis = lsmFsPageNumber(ptr2.pPg);
+
+    if( (ptr2.flags & (PGFTR_SKIP_THIS_FLAG|SEGMENT_BTREE_FLAG))==0 ){
+
+      /* Load the first cell in the array pTwo page. */
+      rc = segmentPtrLoadCell(&ptr2, 0);
+
+      /* Iterate forwards through pOne, searching for a key that matches the
+      ** key ptr2.pKey/nKey. This key should have a pointer to the page that
+      ** ptr2 currently points to. */
+      while( rc==LSM_OK ){
+        int res = rtTopic(ptr1.eType) - rtTopic(ptr2.eType);
+        if( res==0 ){
+          res = pDb->xCmp(ptr1.pKey, ptr1.nKey, ptr2.pKey, ptr2.nKey);
+        }
+
+        if( res<0 ){
+          assert( bRhs || ptr1.iPtr+ptr1.iPgPtr==iPrev );
+        }else if( res>0 ){
+          assert( 0 );
+        }else{
+          assert( ptr1.iPtr+ptr1.iPgPtr==iThis );
+          iPrev = iThis;
+          break;
+        }
+
+        rc = segmentPtrAdvance(0, &ptr1, 0);
+        if( ptr1.pPg==0 ){
+          assert( 0 );
+        }
+      }
+    }
+  }
+
+  segmentPtrReset(&ptr1, 0);
+  segmentPtrReset(&ptr2, 0);
+  return LSM_OK;
+}
+
+/*
+** This function is only included in the build if LSM_DEBUG_EXPENSIVE is 
+** defined. Its only purpose is to evaluate various assert() statements to 
+** verify that the database is well formed in certain respects.
+**
+** More specifically, it checks that the b-tree embedded in array pRun
+** contains the correct keys. If not, an assert() fails.
+*/
+static int assertBtreeOk(
+  lsm_db *pDb,
+  Segment *pSeg
+){
+  int rc = LSM_OK;                /* Return code */
+  if( pSeg->iRoot ){
+    LsmBlob blob = {0, 0, 0};     /* Buffer used to cache overflow keys */
+    FileSystem *pFS = pDb->pFS;   /* File system to read from */
+    Page *pPg = 0;                /* Main run page */
+    BtreeCursor *pCsr = 0;        /* Btree cursor */
+
+    rc = btreeCursorNew(pDb, pSeg, &pCsr);
+    if( rc==LSM_OK ){
+      rc = btreeCursorFirst(pCsr);
+    }
+    if( rc==LSM_OK ){
+      rc = lsmFsDbPageGet(pFS, pSeg, pSeg->iFirst, &pPg);
+    }
+
+    while( rc==LSM_OK ){
+      Page *pNext;
+      u8 *aData;
+      int nData;
+      int flags;
+
+      rc = lsmFsDbPageNext(pSeg, pPg, 1, &pNext);
+      lsmFsPageRelease(pPg);
+      pPg = pNext;
+      if( pPg==0 ) break;
+      aData = fsPageData(pPg, &nData);
+      flags = pageGetFlags(aData, nData);
+      if( rc==LSM_OK 
+       && 0==((SEGMENT_BTREE_FLAG|PGFTR_SKIP_THIS_FLAG) & flags)
+       && 0!=pageGetNRec(aData, nData)
+      ){
+        u8 *pKey;
+        int nKey;
+        int iTopic;
+        pKey = pageGetKey(pSeg, pPg, 0, &iTopic, &nKey, &blob);
+        assert( nKey==pCsr->nKey && 0==memcmp(pKey, pCsr->pKey, nKey) );
+        assert( lsmFsPageNumber(pPg)==pCsr->iPtr );
+        rc = btreeCursorNext(pCsr);
+      }
+    }
+    assert( rc!=LSM_OK || pCsr->pKey==0 );
+
+    if( pPg ) lsmFsPageRelease(pPg);
+
+    btreeCursorFree(pCsr);
+    sortedBlobFree(&blob);
+  }
+
+  return rc;
+}
+#endif /* ifdef LSM_DEBUG_EXPENSIVE */
diff --git a/ext/lsm1/lsm_str.c b/ext/lsm1/lsm_str.c
new file mode 100644
index 0000000000000000000000000000000000000000..9b1b63cee248afaecb3e48d5bee20b83c539a883
--- /dev/null
+++ b/ext/lsm1/lsm_str.c
@@ -0,0 +1,148 @@
+/*
+** 2012-04-27
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** Dynamic string functions.
+*/
+#include "lsmInt.h"
+
+/*
+** Turn bulk and uninitialized memory into an LsmString object
+*/
+void lsmStringInit(LsmString *pStr, lsm_env *pEnv){
+  memset(pStr, 0, sizeof(pStr[0]));
+  pStr->pEnv = pEnv;
+}
+
+/*
+** Increase the memory allocated for holding the string.  Realloc as needed.
+**
+** If a memory allocation error occurs, set pStr->n to -1 and free the existing
+** allocation.  If a prior memory allocation has occurred, this routine is a
+** no-op.
+*/
+int lsmStringExtend(LsmString *pStr, int nNew){
+  assert( nNew>0 );
+  if( pStr->n<0 ) return LSM_NOMEM;
+  if( pStr->n + nNew >= pStr->nAlloc ){
+    int nAlloc = pStr->n + nNew + 100;
+    char *zNew = lsmRealloc(pStr->pEnv, pStr->z, nAlloc);
+    if( zNew==0 ){
+      lsmFree(pStr->pEnv, pStr->z);
+      nAlloc = 0;
+      pStr->n = -1;
+    }
+    pStr->nAlloc = nAlloc;
+    pStr->z = zNew;
+  }
+  return (pStr->z ? LSM_OK : LSM_NOMEM_BKPT);
+}
+
+/*
+** Clear an LsmString object, releasing any allocated memory that it holds.
+** This also clears the error indication (if any).
+*/
+void lsmStringClear(LsmString *pStr){
+  lsmFree(pStr->pEnv, pStr->z);
+  lsmStringInit(pStr, pStr->pEnv);
+}
+
+/*
+** Append N bytes of text to the end of an LsmString object.  If
+** N is negative, append the entire string.
+**
+** If the string is in an error state, this routine is a no-op.
+*/
+int lsmStringAppend(LsmString *pStr, const char *z, int N){
+  int rc;
+  if( N<0 ) N = (int)strlen(z);
+  rc = lsmStringExtend(pStr, N+1);
+  if( pStr->nAlloc ){
+    memcpy(pStr->z+pStr->n, z, N+1);
+    pStr->n += N;
+  }
+  return rc;
+}
+
+int lsmStringBinAppend(LsmString *pStr, const u8 *a, int n){
+  int rc;
+  rc = lsmStringExtend(pStr, n);
+  if( pStr->nAlloc ){
+    memcpy(pStr->z+pStr->n, a, n);
+    pStr->n += n;
+  }
+  return rc;
+}
+
+/*
+** Append printf-formatted content to an LsmString.
+*/
+void lsmStringVAppendf(
+  LsmString *pStr, 
+  const char *zFormat, 
+  va_list ap1,
+  va_list ap2
+){
+#if (!defined(__STDC_VERSION__) || (__STDC_VERSION__<199901L)) && \
+    !defined(__APPLE__)
+  extern int vsnprintf(char *str, size_t size, const char *format, va_list ap)
+    /* Compatibility crutch for C89 compilation mode. sqlite3_vsnprintf()
+       does not work identically and causes test failures if used here.
+       For the time being we are assuming that the target has vsnprintf(),
+       but that is not guaranteed to be the case for pure C89 platforms.
+    */;
+#endif
+  int nWrite;
+  int nAvail;
+
+  nAvail = pStr->nAlloc - pStr->n;
+  nWrite = vsnprintf(pStr->z + pStr->n, nAvail, zFormat, ap1);
+
+  if( nWrite>=nAvail ){
+    lsmStringExtend(pStr, nWrite+1);
+    if( pStr->nAlloc==0 ) return;
+    nWrite = vsnprintf(pStr->z + pStr->n, nWrite+1, zFormat, ap2);
+  }
+
+  pStr->n += nWrite;
+  pStr->z[pStr->n] = 0;
+}
+
+void lsmStringAppendf(LsmString *pStr, const char *zFormat, ...){
+  va_list ap, ap2;
+  va_start(ap, zFormat);
+  va_start(ap2, zFormat);
+  lsmStringVAppendf(pStr, zFormat, ap, ap2);
+  va_end(ap);
+  va_end(ap2);
+}
+
+int lsmStrlen(const char *zName){
+  int nRet = 0;
+  while( zName[nRet] ) nRet++;
+  return nRet;
+}
+
+/*
+** Write into memory obtained from lsm_malloc().
+*/
+char *lsmMallocPrintf(lsm_env *pEnv, const char *zFormat, ...){
+  LsmString s;
+  va_list ap, ap2;
+  lsmStringInit(&s, pEnv);
+  va_start(ap, zFormat);
+  va_start(ap2, zFormat);
+  lsmStringVAppendf(&s, zFormat, ap, ap2);
+  va_end(ap);
+  va_end(ap2);
+  if( s.n<0 ) return 0;
+  return (char *)lsmReallocOrFree(pEnv, s.z, s.n+1);
+}
diff --git a/ext/lsm1/lsm_tree.c b/ext/lsm1/lsm_tree.c
new file mode 100644
index 0000000000000000000000000000000000000000..1a199fc1ce52782c64d77217c5d36bee64622a64
--- /dev/null
+++ b/ext/lsm1/lsm_tree.c
@@ -0,0 +1,2465 @@
+/*
+** 2011-08-18
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** This file contains the implementation of an in-memory tree structure.
+**
+** Technically the tree is a B-tree of order 4 (in the Knuth sense - each 
+** node may have up to 4 children). Keys are stored within B-tree nodes by
+** reference. This may be slightly slower than a conventional red-black
+** tree, but it is simpler. It is also an easier structure to modify to 
+** create a version that supports nested transaction rollback.
+**
+** This tree does not currently support a delete operation. One is not 
+** required. When LSM deletes a key from a database, it inserts a DELETE
+** marker into the data structure. As a result, although the value associated
+** with a key stored in the in-memory tree structure may be modified, no
+** keys are ever removed. 
+*/
+
+/*
+** MVCC NOTES
+**
+**   The in-memory tree structure supports SQLite-style MVCC. This means
+**   that while one client is writing to the tree structure, other clients
+**   may still be querying an older snapshot of the tree.
+**
+**   One way to implement this is to use an append-only b-tree. In this 
+**   case instead of modifying nodes in-place, a copy of the node is made
+**   and the required modifications made to the copy. The parent of the
+**   node is then modified (to update the pointer so that it points to
+**   the new copy), which causes a copy of the parent to be made, and so on.
+**   This means that each time the tree is written to a new root node is
+**   created. A snapshot is identified by the root node that it uses.
+**
+**   The problem with the above is that each time the tree is written to,
+**   a copy of the node structure modified and all of its ancestor nodes
+**   is made. This may prove excessive with large tree structures.
+**
+**   To reduce this overhead, the data structure used for a tree node is
+**   designed so that it may be edited in place exactly once without 
+**   affecting existing users. In other words, the node structure is capable
+**   of storing two separate versions of the node at the same time.
+**   When a node is to be edited, if the node structure already contains 
+**   two versions, a copy is made as in the append-only approach. Or, if
+**   it only contains a single version, it is edited in place.
+**
+**   This reduces the overhead so that, roughly, one new node structure
+**   must be allocated for each write (on top of those allocations that 
+**   would have been required by a non-MVCC tree). Logic: Assume that at 
+**   any time, 50% of nodes in the tree already contain 2 versions. When
+**   a new entry is written to a node, there is a 50% chance that a copy
+**   of the node will be required. And a 25% chance that a copy of its 
+**   parent is required. And so on.
+**
+** ROLLBACK
+**
+**   The in-memory tree also supports transaction and sub-transaction 
+**   rollback. In order to rollback to point in time X, the following is
+**   necessary:
+**
+**     1. All memory allocated since X must be freed, and 
+**     2. All "v2" data adding to nodes that existed at X should be zeroed.
+**     3. The root node must be restored to its X value.
+**
+**   The Mempool object used to allocate memory for the tree supports 
+**   operation (1) - see the lsmPoolMark() and lsmPoolRevert() functions.
+**
+**   To support (2), all nodes that have v2 data are part of a singly linked 
+**   list, sorted by the age of the v2 data (nodes that have had data added 
+**   most recently are at the end of the list). So to zero all v2 data added
+**   since X, the linked list is traversed from the first node added following
+**   X onwards.
+**
+*/
+
+#ifndef _LSM_INT_H
+# include "lsmInt.h"
+#endif
+
+#include <string.h>
+
+#define MAX_DEPTH 32
+
+typedef struct TreeKey TreeKey;
+typedef struct TreeNode TreeNode;
+typedef struct TreeLeaf TreeLeaf;
+typedef struct NodeVersion NodeVersion;
+
+struct TreeOld {
+  u32 iShmid;                     /* Last shared-memory chunk in use by old */
+  u32 iRoot;                      /* Offset of root node in shm file */
+  u32 nHeight;                    /* Height of tree structure */
+};
+
+#if 0
+/*
+** assert() that a TreeKey.flags value is sane. Usage:
+**
+**   assert( lsmAssertFlagsOk(pTreeKey->flags) );
+*/
+static int lsmAssertFlagsOk(u8 keyflags){
+  /* At least one flag must be set. Otherwise, what is this key doing? */
+  assert( keyflags!=0 );
+
+  /* The POINT_DELETE and INSERT flags cannot both be set. */
+  assert( (keyflags & LSM_POINT_DELETE)==0 || (keyflags & LSM_INSERT)==0 );
+
+  /* If both the START_DELETE and END_DELETE flags are set, then the INSERT
+  ** flag must also be set. In other words - the three DELETE flags cannot
+  ** all be set */
+  assert( (keyflags & LSM_END_DELETE)==0 
+       || (keyflags & LSM_START_DELETE)==0 
+       || (keyflags & LSM_POINT_DELETE)==0 
+  );
+
+  return 1;
+}
+#endif
+static int assert_delete_ranges_match(lsm_db *);
+static int treeCountEntries(lsm_db *db);
+
+/*
+** Container for a key-value pair. Within the *-shm file, each key/value
+** pair is stored in a single allocation (which may not actually be 
+** contiguous in memory). Layout is the TreeKey structure, followed by
+** the nKey bytes of key blob, followed by the nValue bytes of value blob
+** (if nValue is non-negative).
+*/
+struct TreeKey {
+  int nKey;                       /* Size of pKey in bytes */
+  int nValue;                     /* Size of pValue. Or negative. */
+  u8 flags;                       /* Various LSM_XXX flags */
+};
+
+#define TKV_KEY(p) ((void *)&(p)[1])
+#define TKV_VAL(p) ((void *)(((u8 *)&(p)[1]) + (p)->nKey))
+
+/*
+** A single tree node. A node structure may contain up to 3 key/value
+** pairs. Internal (non-leaf) nodes have up to 4 children.
+**
+** TODO: Update the format of this to be more compact. Get it working
+** first though...
+*/
+struct TreeNode {
+  u32 aiKeyPtr[3];                /* Array of pointers to TreeKey objects */
+
+  /* The following fields are present for interior nodes only, not leaves. */
+  u32 aiChildPtr[4];              /* Array of pointers to child nodes */
+
+  /* The extra child pointer slot. */
+  u32 iV2;                        /* Transaction number of v2 */
+  u8 iV2Child;                    /* apChild[] entry replaced by pV2Ptr */
+  u32 iV2Ptr;                     /* Substitute pointer */
+};
+
+struct TreeLeaf {
+  u32 aiKeyPtr[3];                /* Array of pointers to TreeKey objects */
+};
+
+typedef struct TreeBlob TreeBlob;
+struct TreeBlob {
+  int n;
+  u8 *a;
+};
+
+/*
+** Cursor for searching a tree structure.
+**
+** If a cursor does not point to any element (a.k.a. EOF), then the
+** TreeCursor.iNode variable is set to a negative value. Otherwise, the
+** cursor currently points to key aiCell[iNode] on node apTreeNode[iNode].
+**
+** Entries in the apTreeNode[] and aiCell[] arrays contain the node and
+** index of the TreeNode.apChild[] pointer followed to descend to the 
+** current element. Hence apTreeNode[0] always contains the root node of
+** the tree.
+*/
+struct TreeCursor {
+  lsm_db *pDb;                    /* Database handle for this cursor */
+  TreeRoot *pRoot;                /* Root node and height of tree to access */
+  int iNode;                      /* Cursor points at apTreeNode[iNode] */
+  TreeNode *apTreeNode[MAX_DEPTH];/* Current position in tree */
+  u8 aiCell[MAX_DEPTH];           /* Current position in tree */
+  TreeKey *pSave;                 /* Saved key */
+  TreeBlob blob;                  /* Dynamic storage for a key */
+};
+
+/*
+** A value guaranteed to be larger than the largest possible transaction
+** id (TreeHeader.iTransId).
+*/
+#define WORKING_VERSION (1<<30)
+
+static int tblobGrow(lsm_db *pDb, TreeBlob *p, int n, int *pRc){
+  if( n>p->n ){
+    lsmFree(pDb->pEnv, p->a);
+    p->a = lsmMallocRc(pDb->pEnv, n, pRc);
+    p->n = n;
+  }
+  return (p->a==0);
+}
+static void tblobFree(lsm_db *pDb, TreeBlob *p){
+  lsmFree(pDb->pEnv, p->a);
+}
+
+
+/***********************************************************************
+** Start of IntArray methods.  */
+/*
+** Append value iVal to the contents of IntArray *p. Return LSM_OK if 
+** successful, or LSM_NOMEM if an OOM condition is encountered.
+*/
+static int intArrayAppend(lsm_env *pEnv, IntArray *p, u32 iVal){
+  assert( p->nArray<=p->nAlloc );
+  if( p->nArray>=p->nAlloc ){
+    u32 *aNew;
+    int nNew = p->nArray ? p->nArray*2 : 128;
+    aNew = lsmRealloc(pEnv, p->aArray, nNew*sizeof(u32));
+    if( !aNew ) return LSM_NOMEM_BKPT;
+    p->aArray = aNew;
+    p->nAlloc = nNew;
+  }
+
+  p->aArray[p->nArray++] = iVal;
+  return LSM_OK;
+}
+
+/*
+** Zero the IntArray object.
+*/
+static void intArrayFree(lsm_env *pEnv, IntArray *p){
+  p->nArray = 0;
+}
+
+/*
+** Return the number of entries currently in the int-array object.
+*/
+static int intArraySize(IntArray *p){
+  return p->nArray;
+}
+
+/*
+** Return a copy of the iIdx'th entry in the int-array.
+*/
+static u32 intArrayEntry(IntArray *p, int iIdx){
+  return p->aArray[iIdx];
+}
+
+/*
+** Truncate the int-array so that all but the first nVal values are 
+** discarded.
+*/
+static void intArrayTruncate(IntArray *p, int nVal){
+  p->nArray = nVal;
+}
+/* End of IntArray methods.
+***********************************************************************/
+
+static int treeKeycmp(void *p1, int n1, void *p2, int n2){
+  int res;
+  res = memcmp(p1, p2, LSM_MIN(n1, n2));
+  if( res==0 ) res = (n1-n2);
+  return res;
+}
+
+/*
+** The pointer passed as the first argument points to an interior node,
+** not a leaf. This function returns the offset of the iCell'th child
+** sub-tree of the node.
+*/
+static u32 getChildPtr(TreeNode *p, int iVersion, int iCell){
+  assert( iVersion>=0 );
+  assert( iCell>=0 && iCell<=array_size(p->aiChildPtr) );
+  if( p->iV2 && p->iV2<=(u32)iVersion && iCell==p->iV2Child ) return p->iV2Ptr;
+  return p->aiChildPtr[iCell];
+}
+
+/*
+** Given an offset within the *-shm file, return the associated chunk number.
+*/
+static int treeOffsetToChunk(u32 iOff){
+  assert( LSM_SHM_CHUNK_SIZE==(1<<15) );
+  return (int)(iOff>>15);
+}
+
+#define treeShmptrUnsafe(pDb, iPtr) \
+(&((u8*)((pDb)->apShm[(iPtr)>>15]))[(iPtr) & (LSM_SHM_CHUNK_SIZE-1)])
+
+/*
+** Return a pointer to the mapped memory location associated with *-shm 
+** file offset iPtr.
+*/
+static void *treeShmptr(lsm_db *pDb, u32 iPtr){
+
+  assert( (iPtr>>15)<(u32)pDb->nShm );
+  assert( pDb->apShm[iPtr>>15] );
+
+  return iPtr ? treeShmptrUnsafe(pDb, iPtr) : 0;
+}
+
+static ShmChunk * treeShmChunk(lsm_db *pDb, int iChunk){
+  return (ShmChunk *)(pDb->apShm[iChunk]);
+}
+
+static ShmChunk * treeShmChunkRc(lsm_db *pDb, int iChunk, int *pRc){
+  assert( *pRc==LSM_OK );
+  if( iChunk<pDb->nShm || LSM_OK==(*pRc = lsmShmCacheChunks(pDb, iChunk+1)) ){
+    return (ShmChunk *)(pDb->apShm[iChunk]);
+  }
+  return 0;
+}
+
+
+#ifndef NDEBUG
+static void assertIsWorkingChild(
+  lsm_db *db, 
+  TreeNode *pNode, 
+  TreeNode *pParent, 
+  int iCell
+){
+  TreeNode *p;
+  u32 iPtr = getChildPtr(pParent, WORKING_VERSION, iCell);
+  p = treeShmptr(db, iPtr);
+  assert( p==pNode );
+}
+#else
+# define assertIsWorkingChild(w,x,y,z)
+#endif
+
+/* Values for the third argument to treeShmkey(). */
+#define TKV_LOADKEY  1
+#define TKV_LOADVAL  2
+
+static TreeKey *treeShmkey(
+  lsm_db *pDb,                    /* Database handle */
+  u32 iPtr,                       /* Shmptr to TreeKey struct */
+  int eLoad,                      /* Either zero or a TREEKEY_LOADXXX value */
+  TreeBlob *pBlob,                /* Used if dynamic memory is required */
+  int *pRc                        /* IN/OUT: Error code */
+){
+  TreeKey *pRet;
+
+  assert( eLoad==TKV_LOADKEY || eLoad==TKV_LOADVAL );
+  pRet = (TreeKey *)treeShmptr(pDb, iPtr);
+  if( pRet ){
+    int nReq;                     /* Bytes of space required at pRet */
+    int nAvail;                   /* Bytes of space available at pRet */
+
+    nReq = sizeof(TreeKey) + pRet->nKey;
+    if( eLoad==TKV_LOADVAL && pRet->nValue>0 ){
+      nReq += pRet->nValue;
+    }
+    assert( LSM_SHM_CHUNK_SIZE==(1<<15) );
+    nAvail = LSM_SHM_CHUNK_SIZE - (iPtr & (LSM_SHM_CHUNK_SIZE-1));
+
+    if( nAvail<nReq ){
+      if( tblobGrow(pDb, pBlob, nReq, pRc)==0 ){
+        int nLoad = 0;
+        while( *pRc==LSM_OK ){
+          ShmChunk *pChunk;
+          void *p = treeShmptr(pDb, iPtr);
+          int n = LSM_MIN(nAvail, nReq-nLoad);
+
+          memcpy(&pBlob->a[nLoad], p, n);
+          nLoad += n;
+          if( nLoad==nReq ) break;
+
+          pChunk = treeShmChunk(pDb, treeOffsetToChunk(iPtr));
+          assert( pChunk );
+          iPtr = (pChunk->iNext * LSM_SHM_CHUNK_SIZE) + LSM_SHM_CHUNK_HDR;
+          nAvail = LSM_SHM_CHUNK_SIZE - LSM_SHM_CHUNK_HDR;
+        }
+      }
+      pRet = (TreeKey *)(pBlob->a);
+    }
+  }
+
+  return pRet;
+}
+
+#if defined(LSM_DEBUG) && defined(LSM_EXPENSIVE_ASSERT)
+void assert_leaf_looks_ok(TreeNode *pNode){
+  assert( pNode->apKey[1] );
+}
+
+void assert_node_looks_ok(TreeNode *pNode, int nHeight){
+  if( pNode ){
+    assert( pNode->apKey[1] );
+    if( nHeight>1 ){
+      int i;
+      assert( getChildPtr(pNode, WORKING_VERSION, 1) );
+      assert( getChildPtr(pNode, WORKING_VERSION, 2) );
+      for(i=0; i<4; i++){
+        assert_node_looks_ok(getChildPtr(pNode, WORKING_VERSION, i), nHeight-1);
+      }
+    }
+  }
+}
+
+/*
+** Run various assert() statements to check that the working-version of the
+** tree is correct in the following respects:
+**
+**   * todo...
+*/
+void assert_tree_looks_ok(int rc, Tree *pTree){
+}
+#else
+# define assert_tree_looks_ok(x,y)
+#endif
+
+void lsmFlagsToString(int flags, char *zFlags){
+
+  zFlags[0] = (flags & LSM_END_DELETE)   ? ']' : '.';
+
+  /* Only one of LSM_POINT_DELETE, LSM_INSERT and LSM_SEPARATOR should ever
+  ** be set. If this is not true, write a '?' to the output.  */
+  switch( flags & (LSM_POINT_DELETE|LSM_INSERT|LSM_SEPARATOR) ){
+    case 0:                zFlags[1] = '.'; break;
+    case LSM_POINT_DELETE: zFlags[1] = '-'; break;
+    case LSM_INSERT:       zFlags[1] = '+'; break;
+    case LSM_SEPARATOR:    zFlags[1] = '^'; break;
+    default:               zFlags[1] = '?'; break;
+  }
+
+  zFlags[2] = (flags & LSM_SYSTEMKEY)    ? '*' : '.';
+  zFlags[3] = (flags & LSM_START_DELETE) ? '[' : '.';
+  zFlags[4] = '\0';
+}
+
+#ifdef LSM_DEBUG
+
+/*
+** Pointer pBlob points to a buffer containing a blob of binary data
+** nBlob bytes long. Append the contents of this blob to *pStr, with
+** each octet represented by a 2-digit hexadecimal number. For example,
+** if the input blob is three bytes in size and contains {0x01, 0x44, 0xFF},
+** then "0144ff" is appended to *pStr.
+*/
+static void lsmAppendStrBlob(LsmString *pStr, void *pBlob, int nBlob){
+  int i;
+  lsmStringExtend(pStr, nBlob*2);
+  if( pStr->nAlloc==0 ) return;
+  for(i=0; i<nBlob; i++){
+    u8 c = ((u8*)pBlob)[i];
+    if( c>='a' && c<='z' ){
+      pStr->z[pStr->n++] = c;
+    }else if( c!=0 || nBlob==1 || i!=(nBlob-1) ){
+      pStr->z[pStr->n++] = "0123456789abcdef"[(c>>4)&0xf];
+      pStr->z[pStr->n++] = "0123456789abcdef"[c&0xf];
+    }
+  }
+  pStr->z[pStr->n] = 0;
+}
+
+#if 0  /* NOT USED */
+/*
+** Append nIndent space (0x20) characters to string *pStr.
+*/
+static void lsmAppendIndent(LsmString *pStr, int nIndent){
+  int i;
+  lsmStringExtend(pStr, nIndent);
+  for(i=0; i<nIndent; i++) lsmStringAppend(pStr, " ", 1);
+}
+#endif
+
+static void strAppendFlags(LsmString *pStr, u8 flags){
+  char zFlags[8];
+
+  lsmFlagsToString(flags, zFlags);
+  zFlags[4] = ':';
+
+  lsmStringAppend(pStr, zFlags, 5);
+}
+
+void dump_node_contents(
+  lsm_db *pDb,
+  u32 iNode,                      /* Print out the contents of this node */
+  char *zPath,                    /* Path from root to this node */
+  int nPath,                      /* Number of bytes in zPath */
+  int nHeight                     /* Height: (0==leaf) (1==parent-of-leaf) */
+){
+  const char *zSpace = "                                           ";
+  int i;
+  int rc = LSM_OK;
+  LsmString s;
+  TreeNode *pNode;
+  TreeBlob b = {0, 0};
+
+  pNode = (TreeNode *)treeShmptr(pDb, iNode);
+
+  if( nHeight==0 ){
+    /* Append the nIndent bytes of space to string s. */
+    lsmStringInit(&s, pDb->pEnv);
+
+    /* Append each key to string s. */
+    for(i=0; i<3; i++){
+      u32 iPtr = pNode->aiKeyPtr[i];
+      if( iPtr ){
+        TreeKey *pKey = treeShmkey(pDb, pNode->aiKeyPtr[i],TKV_LOADKEY, &b,&rc);
+        strAppendFlags(&s, pKey->flags);
+        lsmAppendStrBlob(&s, TKV_KEY(pKey), pKey->nKey);
+        lsmStringAppend(&s, "     ", -1);
+      }
+    }
+
+    printf("% 6d %.*sleaf%.*s: %s\n", 
+        iNode, nPath, zPath, 20-nPath-4, zSpace, s.z
+    );
+    lsmStringClear(&s);
+  }else{
+    for(i=0; i<4 && nHeight>0; i++){
+      u32 iPtr = getChildPtr(pNode, pDb->treehdr.root.iTransId, i);
+      zPath[nPath] = (char)(i+'0');
+      zPath[nPath+1] = '/';
+
+      if( iPtr ){
+        dump_node_contents(pDb, iPtr, zPath, nPath+2, nHeight-1);
+      }
+      if( i!=3 && pNode->aiKeyPtr[i] ){
+        TreeKey *pKey = treeShmkey(pDb, pNode->aiKeyPtr[i], TKV_LOADKEY,&b,&rc);
+        lsmStringInit(&s, pDb->pEnv);
+        strAppendFlags(&s, pKey->flags);
+        lsmAppendStrBlob(&s, TKV_KEY(pKey), pKey->nKey);
+        printf("% 6d %.*s%.*s: %s\n", 
+            iNode, nPath+1, zPath, 20-nPath-1, zSpace, s.z);
+        lsmStringClear(&s);
+      }
+    }
+  }
+
+  tblobFree(pDb, &b);
+}
+
+void dump_tree_contents(lsm_db *pDb, const char *zCaption){
+  char zPath[64];
+  TreeRoot *p = &pDb->treehdr.root;
+  printf("\n%s\n", zCaption);
+  zPath[0] = '/';
+  if( p->iRoot ){
+    dump_node_contents(pDb, p->iRoot, zPath, 1, p->nHeight-1);
+  }
+  fflush(stdout);
+}
+
+#endif
+
+/*
+** Initialize a cursor object, the space for which has already been
+** allocated.
+*/
+static void treeCursorInit(lsm_db *pDb, int bOld, TreeCursor *pCsr){
+  memset(pCsr, 0, sizeof(TreeCursor));
+  pCsr->pDb = pDb;
+  if( bOld ){
+    pCsr->pRoot = &pDb->treehdr.oldroot;
+  }else{
+    pCsr->pRoot = &pDb->treehdr.root;
+  }
+  pCsr->iNode = -1;
+}
+
+/*
+** Return a pointer to the mapping of the TreeKey object that the cursor
+** is pointing to. 
+*/
+static TreeKey *csrGetKey(TreeCursor *pCsr, TreeBlob *pBlob, int *pRc){
+  TreeKey *pRet;
+  lsm_db *pDb = pCsr->pDb;
+  u32 iPtr = pCsr->apTreeNode[pCsr->iNode]->aiKeyPtr[pCsr->aiCell[pCsr->iNode]];
+
+  assert( iPtr );
+  pRet = (TreeKey*)treeShmptrUnsafe(pDb, iPtr);
+  if( !(pRet->flags & LSM_CONTIGUOUS) ){
+    pRet = treeShmkey(pDb, iPtr, TKV_LOADVAL, pBlob, pRc);
+  }
+
+  return pRet;
+}
+
+/*
+** Save the current position of tree cursor pCsr.
+*/
+int lsmTreeCursorSave(TreeCursor *pCsr){
+  int rc = LSM_OK;
+  if( pCsr && pCsr->pSave==0 ){
+    int iNode = pCsr->iNode;
+    if( iNode>=0 ){
+      pCsr->pSave = csrGetKey(pCsr, &pCsr->blob, &rc);
+    }
+    pCsr->iNode = -1;
+  }
+  return rc;
+}
+
+/*
+** Restore the position of a saved tree cursor.
+*/
+static int treeCursorRestore(TreeCursor *pCsr, int *pRes){
+  int rc = LSM_OK;
+  if( pCsr->pSave ){
+    TreeKey *pKey = pCsr->pSave;
+    pCsr->pSave = 0;
+    if( pRes ){
+      rc = lsmTreeCursorSeek(pCsr, TKV_KEY(pKey), pKey->nKey, pRes);
+    }
+  }
+  return rc;
+}
+
+/*
+** Allocate nByte bytes of space within the *-shm file. If successful, 
+** return LSM_OK and set *piPtr to the offset within the file at which
+** the allocated space is located.
+*/
+static u32 treeShmalloc(lsm_db *pDb, int bAlign, int nByte, int *pRc){
+  u32 iRet = 0;
+  if( *pRc==LSM_OK ){
+    const static int CHUNK_SIZE = LSM_SHM_CHUNK_SIZE;
+    const static int CHUNK_HDR = LSM_SHM_CHUNK_HDR;
+    u32 iWrite;                   /* Current write offset */
+    u32 iEof;                     /* End of current chunk */
+    int iChunk;                   /* Current chunk */
+
+    assert( nByte <= (CHUNK_SIZE-CHUNK_HDR) );
+
+    /* Check if there is enough space on the current chunk to fit the
+    ** new allocation. If not, link in a new chunk and put the new
+    ** allocation at the start of it.  */
+    iWrite = pDb->treehdr.iWrite;
+    if( bAlign ){
+      iWrite = (iWrite + 3) & ~0x0003;
+      assert( (iWrite % 4)==0 );
+    }
+
+    assert( iWrite );
+    iChunk = treeOffsetToChunk(iWrite-1);
+    iEof = (iChunk+1) * CHUNK_SIZE;
+    assert( iEof>=iWrite && (iEof-iWrite)<(u32)CHUNK_SIZE );
+    if( (iWrite+nByte)>iEof ){
+      ShmChunk *pHdr;           /* Header of chunk just finished (iChunk) */
+      ShmChunk *pFirst;         /* Header of chunk treehdr.iFirst */
+      ShmChunk *pNext;          /* Header of new chunk */
+      int iNext = 0;            /* Next chunk */
+      int rc = LSM_OK;
+
+      pFirst = treeShmChunk(pDb, pDb->treehdr.iFirst);
+
+      assert( shm_sequence_ge(pDb->treehdr.iUsedShmid, pFirst->iShmid) );
+      assert( (pDb->treehdr.iNextShmid+1-pDb->treehdr.nChunk)==pFirst->iShmid );
+
+      /* Check if the chunk at the start of the linked list is still in
+      ** use. If not, reuse it. If so, allocate a new chunk by appending
+      ** to the *-shm file.  */
+      if( pDb->treehdr.iUsedShmid!=pFirst->iShmid ){
+        int bInUse;
+        rc = lsmTreeInUse(pDb, pFirst->iShmid, &bInUse);
+        if( rc!=LSM_OK ){
+          *pRc = rc;
+          return 0;
+        }
+        if( bInUse==0 ){
+          iNext = pDb->treehdr.iFirst;
+          pDb->treehdr.iFirst = pFirst->iNext;
+          assert( pDb->treehdr.iFirst );
+        }
+      }
+      if( iNext==0 ) iNext = pDb->treehdr.nChunk++;
+
+      /* Set the header values for the new chunk */
+      pNext = treeShmChunkRc(pDb, iNext, &rc);
+      if( pNext ){
+        pNext->iNext = 0;
+        pNext->iShmid = (pDb->treehdr.iNextShmid++);
+      }else{
+        *pRc = rc;
+        return 0;
+      }
+
+      /* Set the header values for the chunk just finished */
+      pHdr = (ShmChunk *)treeShmptr(pDb, iChunk*CHUNK_SIZE);
+      pHdr->iNext = iNext;
+
+      /* Advance to the next chunk */
+      iWrite = iNext * CHUNK_SIZE + CHUNK_HDR;
+    }
+
+    /* Allocate space at iWrite. */
+    iRet = iWrite;
+    pDb->treehdr.iWrite = iWrite + nByte;
+    pDb->treehdr.root.nByte += nByte;
+  }
+  return iRet;
+}
+
+/*
+** Allocate and zero nByte bytes of space within the *-shm file.
+*/
+static void *treeShmallocZero(lsm_db *pDb, int nByte, u32 *piPtr, int *pRc){
+  u32 iPtr;
+  void *p;
+  iPtr = treeShmalloc(pDb, 1, nByte, pRc);
+  p = treeShmptr(pDb, iPtr);
+  if( p ){
+    assert( *pRc==LSM_OK );
+    memset(p, 0, nByte);
+    *piPtr = iPtr;
+  }
+  return p;
+}
+
+static TreeNode *newTreeNode(lsm_db *pDb, u32 *piPtr, int *pRc){
+  return treeShmallocZero(pDb, sizeof(TreeNode), piPtr, pRc);
+}
+
+static TreeLeaf *newTreeLeaf(lsm_db *pDb, u32 *piPtr, int *pRc){
+  return treeShmallocZero(pDb, sizeof(TreeLeaf), piPtr, pRc);
+}
+
+static TreeKey *newTreeKey(
+  lsm_db *pDb, 
+  u32 *piPtr, 
+  void *pKey, int nKey,           /* Key data */
+  void *pVal, int nVal,           /* Value data (or nVal<0 for delete) */
+  int *pRc
+){
+  TreeKey *p;
+  u32 iPtr;
+  u32 iEnd;
+  int nRem;
+  u8 *a;
+  int n;
+
+  /* Allocate space for the TreeKey structure itself */
+  *piPtr = iPtr = treeShmalloc(pDb, 1, sizeof(TreeKey), pRc);
+  p = treeShmptr(pDb, iPtr);
+  if( *pRc ) return 0;
+  p->nKey = nKey;
+  p->nValue = nVal;
+
+  /* Allocate and populate the space required for the key and value. */
+  n = nRem = nKey;
+  a = (u8 *)pKey;
+  while( a ){
+    while( nRem>0 ){
+      u8 *aAlloc;
+      int nAlloc;
+      u32 iWrite;
+
+      iWrite = (pDb->treehdr.iWrite & (LSM_SHM_CHUNK_SIZE-1));
+      iWrite = LSM_MAX(iWrite, LSM_SHM_CHUNK_HDR);
+      nAlloc = LSM_MIN((LSM_SHM_CHUNK_SIZE-iWrite), (u32)nRem);
+
+      aAlloc = treeShmptr(pDb, treeShmalloc(pDb, 0, nAlloc, pRc));
+      if( aAlloc==0 ) break;
+      memcpy(aAlloc, &a[n-nRem], nAlloc);
+      nRem -= nAlloc;
+    }
+    a = pVal;
+    n = nRem = nVal;
+    pVal = 0;
+  }
+
+  iEnd = iPtr + sizeof(TreeKey) + nKey + LSM_MAX(0, nVal);
+  if( (iPtr & ~(LSM_SHM_CHUNK_SIZE-1))!=(iEnd & ~(LSM_SHM_CHUNK_SIZE-1)) ){
+    p->flags = 0;
+  }else{
+    p->flags = LSM_CONTIGUOUS;
+  }
+
+  if( *pRc ) return 0;
+#if 0
+  printf("store: %d %s\n", (int)iPtr, (char *)pKey);
+#endif
+  return p;
+}
+
+static TreeNode *copyTreeNode(
+  lsm_db *pDb, 
+  TreeNode *pOld, 
+  u32 *piNew, 
+  int *pRc
+){
+  TreeNode *pNew;
+
+  pNew = newTreeNode(pDb, piNew, pRc);
+  if( pNew ){
+    memcpy(pNew->aiKeyPtr, pOld->aiKeyPtr, sizeof(pNew->aiKeyPtr));
+    memcpy(pNew->aiChildPtr, pOld->aiChildPtr, sizeof(pNew->aiChildPtr));
+    if( pOld->iV2 ) pNew->aiChildPtr[pOld->iV2Child] = pOld->iV2Ptr;
+  }
+  return pNew;
+}
+
+static TreeNode *copyTreeLeaf(
+  lsm_db *pDb, 
+  TreeLeaf *pOld, 
+  u32 *piNew, 
+  int *pRc
+){
+  TreeLeaf *pNew;
+  pNew = newTreeLeaf(pDb, piNew, pRc);
+  if( pNew ){
+    memcpy(pNew, pOld, sizeof(TreeLeaf));
+  }
+  return (TreeNode *)pNew;
+}
+
+/*
+** The tree cursor passed as the second argument currently points to an 
+** internal node (not a leaf). Specifically, to a sub-tree pointer. This
+** function replaces the sub-tree that the cursor currently points to
+** with sub-tree pNew.
+**
+** The sub-tree may be replaced either by writing the "v2 data" on the
+** internal node, or by allocating a new TreeNode structure and then 
+** calling this function on the parent of the internal node.
+*/
+static int treeUpdatePtr(lsm_db *pDb, TreeCursor *pCsr, u32 iNew){
+  int rc = LSM_OK;
+  if( pCsr->iNode<0 ){
+    /* iNew is the new root node */
+    pDb->treehdr.root.iRoot = iNew;
+  }else{
+    /* If this node already has version 2 content, allocate a copy and
+    ** update the copy with the new pointer value. Otherwise, store the
+    ** new pointer as v2 data within the current node structure.  */
+
+    TreeNode *p;                  /* The node to be modified */
+    int iChildPtr;                /* apChild[] entry to modify */
+
+    p = pCsr->apTreeNode[pCsr->iNode];
+    iChildPtr = pCsr->aiCell[pCsr->iNode];
+
+    if( p->iV2 ){
+      /* The "allocate new TreeNode" option */
+      u32 iCopy;
+      TreeNode *pCopy;
+      pCopy = copyTreeNode(pDb, p, &iCopy, &rc);
+      if( pCopy ){
+        assert( rc==LSM_OK );
+        pCopy->aiChildPtr[iChildPtr] = iNew;
+        pCsr->iNode--;
+        rc = treeUpdatePtr(pDb, pCsr, iCopy);
+      }
+    }else{
+      /* The "v2 data" option */
+      u32 iPtr;
+      assert( pDb->treehdr.root.iTransId>0 );
+
+      if( pCsr->iNode ){
+        iPtr = getChildPtr(
+            pCsr->apTreeNode[pCsr->iNode-1], 
+            pDb->treehdr.root.iTransId, pCsr->aiCell[pCsr->iNode-1]
+        );
+      }else{
+        iPtr = pDb->treehdr.root.iRoot;
+      }
+      rc = intArrayAppend(pDb->pEnv, &pDb->rollback, iPtr);
+
+      if( rc==LSM_OK ){
+        p->iV2 = pDb->treehdr.root.iTransId;
+        p->iV2Child = (u8)iChildPtr;
+        p->iV2Ptr = iNew;
+      }
+    }
+  }
+
+  return rc;
+}
+
+/*
+** Cursor pCsr points at a node that is part of pTree. This function
+** inserts a new key and optionally child node pointer into that node.
+**
+** The position into which the new key and pointer are inserted is
+** determined by the iSlot parameter. The new key will be inserted to
+** the left of the key currently stored in apKey[iSlot]. Or, if iSlot is
+** greater than the index of the rightmost key in the node.
+**
+** Pointer pLeftPtr points to a child tree that contains keys that are
+** smaller than pTreeKey.
+*/
+static int treeInsert(
+  lsm_db *pDb,                    /* Database handle */
+  TreeCursor *pCsr,               /* Cursor indicating path to insert at */
+  u32 iLeftPtr,                   /* Left child pointer */
+  u32 iTreeKey,                   /* Location of key to insert */
+  u32 iRightPtr,                  /* Right child pointer */
+  int iSlot                       /* Position to insert key into */
+){
+  int rc = LSM_OK;
+  TreeNode *pNode = pCsr->apTreeNode[pCsr->iNode];
+
+  /* Check if the node is currently full. If so, split pNode in two and
+  ** call this function recursively to add a key to the parent. Otherwise, 
+  ** insert the new key directly into pNode.  */
+  assert( pNode->aiKeyPtr[1] );
+  if( pNode->aiKeyPtr[0] && pNode->aiKeyPtr[2] ){
+    u32 iLeft; TreeNode *pLeft;   /* New left-hand sibling node */
+    u32 iRight; TreeNode *pRight; /* New right-hand sibling node */
+
+    pLeft = newTreeNode(pDb, &iLeft, &rc);
+    pRight = newTreeNode(pDb, &iRight, &rc);
+    if( rc ) return rc;
+
+    pLeft->aiChildPtr[1] = getChildPtr(pNode, WORKING_VERSION, 0);
+    pLeft->aiKeyPtr[1] = pNode->aiKeyPtr[0];
+    pLeft->aiChildPtr[2] = getChildPtr(pNode, WORKING_VERSION, 1);
+
+    pRight->aiChildPtr[1] = getChildPtr(pNode, WORKING_VERSION, 2);
+    pRight->aiKeyPtr[1] = pNode->aiKeyPtr[2];
+    pRight->aiChildPtr[2] = getChildPtr(pNode, WORKING_VERSION, 3);
+
+    if( pCsr->iNode==0 ){
+      /* pNode is the root of the tree. Grow the tree by one level. */
+      u32 iRoot; TreeNode *pRoot; /* New root node */
+
+      pRoot = newTreeNode(pDb, &iRoot, &rc);
+      pRoot->aiKeyPtr[1] = pNode->aiKeyPtr[1];
+      pRoot->aiChildPtr[1] = iLeft;
+      pRoot->aiChildPtr[2] = iRight;
+
+      pDb->treehdr.root.iRoot = iRoot;
+      pDb->treehdr.root.nHeight++;
+    }else{
+
+      pCsr->iNode--;
+      rc = treeInsert(pDb, pCsr, 
+          iLeft, pNode->aiKeyPtr[1], iRight, pCsr->aiCell[pCsr->iNode]
+      );
+    }
+
+    assert( pLeft->iV2==0 );
+    assert( pRight->iV2==0 );
+    switch( iSlot ){
+      case 0:
+        pLeft->aiKeyPtr[0] = iTreeKey;
+        pLeft->aiChildPtr[0] = iLeftPtr;
+        if( iRightPtr ) pLeft->aiChildPtr[1] = iRightPtr;
+        break;
+      case 1:
+        pLeft->aiChildPtr[3] = (iRightPtr ? iRightPtr : pLeft->aiChildPtr[2]);
+        pLeft->aiKeyPtr[2] = iTreeKey;
+        pLeft->aiChildPtr[2] = iLeftPtr;
+        break;
+      case 2:
+        pRight->aiKeyPtr[0] = iTreeKey;
+        pRight->aiChildPtr[0] = iLeftPtr;
+        if( iRightPtr ) pRight->aiChildPtr[1] = iRightPtr;
+        break;
+      case 3:
+        pRight->aiChildPtr[3] = (iRightPtr ? iRightPtr : pRight->aiChildPtr[2]);
+        pRight->aiKeyPtr[2] = iTreeKey;
+        pRight->aiChildPtr[2] = iLeftPtr;
+        break;
+    }
+
+  }else{
+    TreeNode *pNew;
+    u32 *piKey;
+    u32 *piChild;
+    u32 iStore = 0;
+    u32 iNew = 0;
+    int i;
+
+    /* Allocate a new version of node pNode. */
+    pNew = newTreeNode(pDb, &iNew, &rc);
+    if( rc ) return rc;
+
+    piKey = pNew->aiKeyPtr;
+    piChild = pNew->aiChildPtr;
+
+    for(i=0; i<iSlot; i++){
+      if( pNode->aiKeyPtr[i] ){
+        *(piKey++) = pNode->aiKeyPtr[i];
+        *(piChild++) = getChildPtr(pNode, WORKING_VERSION, i);
+      }
+    }
+
+    *piKey++ = iTreeKey;
+    *piChild++ = iLeftPtr;
+
+    iStore = iRightPtr;
+    for(i=iSlot; i<3; i++){
+      if( pNode->aiKeyPtr[i] ){
+        *(piKey++) = pNode->aiKeyPtr[i];
+        *(piChild++) = iStore ? iStore : getChildPtr(pNode, WORKING_VERSION, i);
+        iStore = 0;
+      }
+    }
+
+    if( iStore ){
+      *piChild = iStore;
+    }else{
+      *piChild = getChildPtr(pNode, WORKING_VERSION, 
+          (pNode->aiKeyPtr[2] ? 3 : 2)
+      );
+    }
+    pCsr->iNode--;
+    rc = treeUpdatePtr(pDb, pCsr, iNew);
+  }
+
+  return rc;
+}
+
+static int treeInsertLeaf(
+  lsm_db *pDb,                    /* Database handle */
+  TreeCursor *pCsr,               /* Cursor structure */
+  u32 iTreeKey,                   /* Key pointer to insert */
+  int iSlot                       /* Insert key to the left of this */
+){
+  int rc = LSM_OK;                /* Return code */
+  TreeNode *pLeaf = pCsr->apTreeNode[pCsr->iNode];
+  TreeLeaf *pNew;
+  u32 iNew;
+
+  assert( iSlot>=0 && iSlot<=4 );
+  assert( pCsr->iNode>0 );
+  assert( pLeaf->aiKeyPtr[1] );
+
+  pCsr->iNode--;
+
+  pNew = newTreeLeaf(pDb, &iNew, &rc);
+  if( pNew ){
+    if( pLeaf->aiKeyPtr[0] && pLeaf->aiKeyPtr[2] ){
+      /* The leaf is full. Split it in two. */
+      TreeLeaf *pRight;
+      u32 iRight;
+      pRight = newTreeLeaf(pDb, &iRight, &rc);
+      if( pRight ){
+        assert( rc==LSM_OK );
+        pNew->aiKeyPtr[1] = pLeaf->aiKeyPtr[0];
+        pRight->aiKeyPtr[1] = pLeaf->aiKeyPtr[2];
+        switch( iSlot ){
+          case 0: pNew->aiKeyPtr[0] = iTreeKey; break;
+          case 1: pNew->aiKeyPtr[2] = iTreeKey; break;
+          case 2: pRight->aiKeyPtr[0] = iTreeKey; break;
+          case 3: pRight->aiKeyPtr[2] = iTreeKey; break;
+        }
+
+        rc = treeInsert(pDb, pCsr, iNew, pLeaf->aiKeyPtr[1], iRight, 
+            pCsr->aiCell[pCsr->iNode]
+        );
+      }
+    }else{
+      int iOut = 0;
+      int i;
+      for(i=0; i<4; i++){
+        if( i==iSlot ) pNew->aiKeyPtr[iOut++] = iTreeKey;
+        if( i<3 && pLeaf->aiKeyPtr[i] ){
+          pNew->aiKeyPtr[iOut++] = pLeaf->aiKeyPtr[i];
+        }
+      }
+      rc = treeUpdatePtr(pDb, pCsr, iNew);
+    }
+  }
+
+  return rc;
+}
+
+void lsmTreeMakeOld(lsm_db *pDb){
+
+  /* A write transaction must be open. Otherwise the code below that
+  ** assumes (pDb->pClient->iLogOff) is current may malfunction. 
+  **
+  ** Update: currently this assert fails due to lsm_flush(), which does
+  ** not set nTransOpen.
+  */
+  assert( /* pDb->nTransOpen>0 && */ pDb->iReader>=0 );
+
+  if( pDb->treehdr.iOldShmid==0 ){
+    pDb->treehdr.iOldLog = (pDb->treehdr.log.aRegion[2].iEnd << 1);
+    pDb->treehdr.iOldLog |= (~(pDb->pClient->iLogOff) & (i64)0x0001);
+
+    pDb->treehdr.oldcksum0 = pDb->treehdr.log.cksum0;
+    pDb->treehdr.oldcksum1 = pDb->treehdr.log.cksum1;
+    pDb->treehdr.iOldShmid = pDb->treehdr.iNextShmid-1;
+    memcpy(&pDb->treehdr.oldroot, &pDb->treehdr.root, sizeof(TreeRoot));
+
+    pDb->treehdr.root.iTransId = 1;
+    pDb->treehdr.root.iRoot = 0;
+    pDb->treehdr.root.nHeight = 0;
+    pDb->treehdr.root.nByte = 0;
+  }
+}
+
+void lsmTreeDiscardOld(lsm_db *pDb){
+  assert( lsmShmAssertLock(pDb, LSM_LOCK_WRITER, LSM_LOCK_EXCL) 
+       || lsmShmAssertLock(pDb, LSM_LOCK_DMS2, LSM_LOCK_EXCL) 
+  );
+  pDb->treehdr.iUsedShmid = pDb->treehdr.iOldShmid;
+  pDb->treehdr.iOldShmid = 0;
+}
+
+int lsmTreeHasOld(lsm_db *pDb){
+  return pDb->treehdr.iOldShmid!=0;
+}
+
+/*
+** This function is called during recovery to initialize the 
+** tree header. Only the database connections private copy of the tree-header
+** is initialized here - it will be copied into shared memory if log file
+** recovery is successful.
+*/
+int lsmTreeInit(lsm_db *pDb){
+  ShmChunk *pOne;
+  int rc = LSM_OK;
+
+  memset(&pDb->treehdr, 0, sizeof(TreeHeader));
+  pDb->treehdr.root.iTransId = 1;
+  pDb->treehdr.iFirst = 1;
+  pDb->treehdr.nChunk = 2;
+  pDb->treehdr.iWrite = LSM_SHM_CHUNK_SIZE + LSM_SHM_CHUNK_HDR;
+  pDb->treehdr.iNextShmid = 2;
+  pDb->treehdr.iUsedShmid = 1;
+
+  pOne = treeShmChunkRc(pDb, 1, &rc);
+  if( pOne ){
+    pOne->iNext = 0;
+    pOne->iShmid = 1;
+  }
+  return rc;
+}
+
+static void treeHeaderChecksum(
+  TreeHeader *pHdr, 
+  u32 *aCksum
+){
+  u32 cksum1 = 0x12345678;
+  u32 cksum2 = 0x9ABCDEF0;
+  u32 *a = (u32 *)pHdr;
+  int i;
+
+  assert( (offsetof(TreeHeader, aCksum) + sizeof(u32)*2)==sizeof(TreeHeader) );
+  assert( (sizeof(TreeHeader) % (sizeof(u32)*2))==0 );
+
+  for(i=0; i<(offsetof(TreeHeader, aCksum) / sizeof(u32)); i+=2){
+    cksum1 += a[i];
+    cksum2 += (cksum1 + a[i+1]);
+  }
+  aCksum[0] = cksum1;
+  aCksum[1] = cksum2;
+}
+
+/*
+** Return true if the checksum stored in TreeHeader object *pHdr is 
+** consistent with the contents of its other fields.
+*/
+static int treeHeaderChecksumOk(TreeHeader *pHdr){
+  u32 aCksum[2];
+  treeHeaderChecksum(pHdr, aCksum);
+  return (0==memcmp(aCksum, pHdr->aCksum, sizeof(aCksum)));
+}
+
+/*
+** This type is used by functions lsmTreeRepair() and treeSortByShmid() to
+** make relinking the linked list of shared-memory chunks easier.
+*/
+typedef struct ShmChunkLoc ShmChunkLoc;
+struct ShmChunkLoc {
+  ShmChunk *pShm;
+  u32 iLoc;
+};
+
+/*
+** This function checks that the linked list of shared memory chunks 
+** that starts at chunk db->treehdr.iFirst:
+**
+**   1) Includes all chunks in the shared-memory region, and
+**   2) Links them together in order of ascending shm-id.
+**
+** If no error occurs and the conditions above are met, LSM_OK is returned.
+**
+** If either of the conditions are untrue, LSM_CORRUPT is returned. Or, if
+** an error is encountered before the checks are completed, another LSM error
+** code (i.e. LSM_IOERR or LSM_NOMEM) may be returned.
+*/
+static int treeCheckLinkedList(lsm_db *db){
+  int rc = LSM_OK;
+  int nVisit = 0;
+  ShmChunk *p;
+
+  p = treeShmChunkRc(db, db->treehdr.iFirst, &rc);
+  while( rc==LSM_OK && p ){
+    if( p->iNext ){
+      if( p->iNext>=db->treehdr.nChunk ){
+        rc = LSM_CORRUPT_BKPT;
+      }else{
+        ShmChunk *pNext = treeShmChunkRc(db, p->iNext, &rc);
+        if( rc==LSM_OK ){
+          if( pNext->iShmid!=p->iShmid+1 ){
+            rc = LSM_CORRUPT_BKPT;
+          }
+          p = pNext;
+        }
+      }
+    }else{
+      p = 0;
+    }
+    nVisit++;
+  }
+
+  if( rc==LSM_OK && (u32)nVisit!=db->treehdr.nChunk-1 ){
+    rc = LSM_CORRUPT_BKPT;
+  }
+  return rc;
+}
+
+/*
+** Iterate through the current in-memory tree. If there are any v2-pointers
+** with transaction ids larger than db->treehdr.iTransId, zero them.
+*/
+static int treeRepairPtrs(lsm_db *db){
+  int rc = LSM_OK;
+
+  if( db->treehdr.root.nHeight>1 ){
+    TreeCursor csr;               /* Cursor used to iterate through tree */
+    u32 iTransId = db->treehdr.root.iTransId;
+
+    /* Initialize the cursor structure. Also decrement the nHeight variable
+    ** in the tree-header. This will prevent the cursor from visiting any
+    ** leaf nodes.  */
+    db->treehdr.root.nHeight--;
+    treeCursorInit(db, 0, &csr);
+
+    rc = lsmTreeCursorEnd(&csr, 0);
+    while( rc==LSM_OK && lsmTreeCursorValid(&csr) ){
+      TreeNode *pNode = csr.apTreeNode[csr.iNode];
+      if( pNode->iV2>iTransId ){
+        pNode->iV2Child = 0;
+        pNode->iV2Ptr = 0;
+        pNode->iV2 = 0;
+      }
+      rc = lsmTreeCursorNext(&csr);
+    }
+    tblobFree(csr.pDb, &csr.blob);
+
+    db->treehdr.root.nHeight++;
+  }
+
+  return rc;
+}
+
+static int treeRepairList(lsm_db *db){
+  int rc = LSM_OK;
+  int i;
+  ShmChunk *p;
+  ShmChunk *pMin = 0;
+  u32 iMin = 0;
+
+  /* Iterate through all shm chunks. Find the smallest shm-id present in
+  ** the shared-memory region. */
+  for(i=1; rc==LSM_OK && (u32)i<db->treehdr.nChunk; i++){
+    p = treeShmChunkRc(db, i, &rc);
+    if( p && (pMin==0 || shm_sequence_ge(pMin->iShmid, p->iShmid)) ){
+      pMin = p;
+      iMin = i;
+    }
+  }
+
+  /* Fix the shm-id values on any chunks with a shm-id greater than or 
+  ** equal to treehdr.iNextShmid. Then do a merge-sort of all chunks to 
+  ** fix the ShmChunk.iNext pointers.
+  */
+  if( rc==LSM_OK ){
+    int nSort;
+    int nByte;
+    u32 iPrevShmid;
+    ShmChunkLoc *aSort;
+
+    /* Allocate space for a merge sort. */
+    nSort = 1;
+    while( (u32)nSort < (db->treehdr.nChunk-1) ) nSort = nSort * 2;
+    nByte = sizeof(ShmChunkLoc) * nSort * 2;
+    aSort = lsmMallocZeroRc(db->pEnv, nByte, &rc);
+    iPrevShmid = pMin->iShmid;
+
+    /* Fix all shm-ids, if required. */
+    if( rc==LSM_OK ){
+      iPrevShmid = pMin->iShmid-1;
+      for(i=1; (u32)i<db->treehdr.nChunk; i++){
+        p = treeShmChunk(db, i);
+        aSort[i-1].pShm = p;
+        aSort[i-1].iLoc = i;
+        if( (u32)i!=db->treehdr.iFirst ){
+          if( shm_sequence_ge(p->iShmid, db->treehdr.iNextShmid) ){
+            p->iShmid = iPrevShmid--;
+          }
+        }
+      }
+      if( iMin!=db->treehdr.iFirst ){
+        p = treeShmChunk(db, db->treehdr.iFirst);
+        p->iShmid = iPrevShmid;
+      }
+    }
+
+    if( rc==LSM_OK ){
+      ShmChunkLoc *aSpace = &aSort[nSort];
+      for(i=0; i<nSort; i++){
+        if( aSort[i].pShm ){
+          assert( shm_sequence_ge(aSort[i].pShm->iShmid, iPrevShmid) );
+          assert( aSpace[aSort[i].pShm->iShmid - iPrevShmid].pShm==0 );
+          aSpace[aSort[i].pShm->iShmid - iPrevShmid] = aSort[i];
+        }
+      }
+
+      if( aSpace[nSort-1].pShm ) aSpace[nSort-1].pShm->iNext = 0;
+      for(i=0; i<nSort-1; i++){
+        if( aSpace[i].pShm ){
+          aSpace[i].pShm->iNext = aSpace[i+1].iLoc;
+        }
+      }
+
+      rc = treeCheckLinkedList(db);
+      lsmFree(db->pEnv, aSort);
+    }
+  }
+
+  return rc;
+}
+
+/*
+** This function is called as part of opening a write-transaction if the
+** writer-flag is already set - indicating that the previous writer 
+** failed before ending its transaction.
+*/
+int lsmTreeRepair(lsm_db *db){
+  int rc = LSM_OK;
+  TreeHeader hdr;
+  ShmHeader *pHdr = db->pShmhdr;
+
+  /* Ensure that the two tree-headers are consistent. Copy one over the other
+  ** if necessary. Prefer the data from a tree-header for which the checksum
+  ** computes. Or, if they both compute, prefer tree-header-1.  */
+  if( memcmp(&pHdr->hdr1, &pHdr->hdr2, sizeof(TreeHeader)) ){
+    if( treeHeaderChecksumOk(&pHdr->hdr1) ){
+      memcpy(&pHdr->hdr2, &pHdr->hdr1, sizeof(TreeHeader));
+    }else{
+      memcpy(&pHdr->hdr1, &pHdr->hdr2, sizeof(TreeHeader));
+    }
+  }
+
+  /* Save the connections current copy of the tree-header. It will be 
+  ** restored before returning.  */
+  memcpy(&hdr, &db->treehdr, sizeof(TreeHeader));
+
+  /* Walk the tree. Zero any v2 pointers with a transaction-id greater than
+  ** the transaction-id currently in the tree-headers.  */
+  rc = treeRepairPtrs(db);
+
+  /* Repair the linked list of shared-memory chunks. */
+  if( rc==LSM_OK ){
+    rc = treeRepairList(db);
+  }
+
+  memcpy(&db->treehdr, &hdr, sizeof(TreeHeader));
+  return rc;
+}
+
+static void treeOverwriteKey(lsm_db *db, TreeCursor *pCsr, u32 iKey, int *pRc){
+  if( *pRc==LSM_OK ){
+    TreeRoot *p = &db->treehdr.root;
+    TreeNode *pNew;
+    u32 iNew;
+    TreeNode *pNode = pCsr->apTreeNode[pCsr->iNode];
+    int iCell = pCsr->aiCell[pCsr->iNode];
+
+    /* Create a copy of this node */
+    if( (pCsr->iNode>0 && (u32)pCsr->iNode==(p->nHeight-1)) ){
+      pNew = copyTreeLeaf(db, (TreeLeaf *)pNode, &iNew, pRc);
+    }else{
+      pNew = copyTreeNode(db, pNode, &iNew, pRc);
+    }
+
+    if( pNew ){
+      /* Modify the value in the new version */
+      pNew->aiKeyPtr[iCell] = iKey;
+
+      /* Change the pointer in the parent (if any) to point at the new 
+       ** TreeNode */
+      pCsr->iNode--;
+      treeUpdatePtr(db, pCsr, iNew);
+    }
+  }
+}
+
+static int treeNextIsEndDelete(lsm_db *db, TreeCursor *pCsr){
+  int iNode = pCsr->iNode;
+  int iCell = pCsr->aiCell[iNode]+1;
+
+  /* Cursor currently points to a leaf node. */
+  assert( (u32)pCsr->iNode==(db->treehdr.root.nHeight-1) );
+
+  while( iNode>=0 ){
+    TreeNode *pNode = pCsr->apTreeNode[iNode];
+    if( iCell<3 && pNode->aiKeyPtr[iCell] ){
+      int rc = LSM_OK;
+      TreeKey *pKey = treeShmptr(db, pNode->aiKeyPtr[iCell]);
+      assert( rc==LSM_OK );
+      return ((pKey->flags & LSM_END_DELETE) ? 1 : 0);
+    }
+    iNode--;
+    iCell = pCsr->aiCell[iNode];
+  }
+
+  return 0;
+}
+
+static int treePrevIsStartDelete(lsm_db *db, TreeCursor *pCsr){
+  int iNode = pCsr->iNode;
+
+  /* Cursor currently points to a leaf node. */
+  assert( (u32)pCsr->iNode==(db->treehdr.root.nHeight-1) );
+
+  while( iNode>=0 ){
+    TreeNode *pNode = pCsr->apTreeNode[iNode];
+    int iCell = pCsr->aiCell[iNode]-1;
+    if( iCell>=0 && pNode->aiKeyPtr[iCell] ){
+      int rc = LSM_OK;
+      TreeKey *pKey = treeShmptr(db, pNode->aiKeyPtr[iCell]);
+      assert( rc==LSM_OK );
+      return ((pKey->flags & LSM_START_DELETE) ? 1 : 0);
+    }
+    iNode--;
+  }
+
+  return 0;
+}
+
+
+static int treeInsertEntry(
+  lsm_db *pDb,                    /* Database handle */
+  int flags,                      /* Flags associated with entry */
+  void *pKey,                     /* Pointer to key data */
+  int nKey,                       /* Size of key data in bytes */
+  void *pVal,                     /* Pointer to value data (or NULL) */
+  int nVal                        /* Bytes in value data (or -ve for delete) */
+){
+  int rc = LSM_OK;                /* Return Code */
+  TreeKey *pTreeKey;              /* New key-value being inserted */
+  u32 iTreeKey;
+  TreeRoot *p = &pDb->treehdr.root;
+  TreeCursor csr;                 /* Cursor to seek to pKey/nKey */
+  int res = 0;                    /* Result of seek operation on csr */
+
+  assert( nVal>=0 || pVal==0 );
+  assert_tree_looks_ok(LSM_OK, pTree);
+  assert( flags==LSM_INSERT       || flags==LSM_POINT_DELETE 
+       || flags==LSM_START_DELETE || flags==LSM_END_DELETE 
+  );
+  assert( (flags & LSM_CONTIGUOUS)==0 );
+#if 0
+  dump_tree_contents(pDb, "before");
+#endif
+
+  if( p->iRoot ){
+    TreeKey *pRes;                /* Key at end of seek operation */
+    treeCursorInit(pDb, 0, &csr);
+
+    /* Seek to the leaf (or internal node) that the new key belongs on */
+    rc = lsmTreeCursorSeek(&csr, pKey, nKey, &res);
+    pRes = csrGetKey(&csr, &csr.blob, &rc);
+    if( rc!=LSM_OK ) return rc;
+    assert( pRes );
+
+    if( flags==LSM_START_DELETE ){
+      /* When inserting a start-delete-range entry, if the key that
+      ** occurs immediately before the new entry is already a START_DELETE,
+      ** then the new entry is not required.  */
+      if( (res<=0 && (pRes->flags & LSM_START_DELETE))
+       || (res>0  && treePrevIsStartDelete(pDb, &csr))
+      ){ 
+        goto insert_entry_out;
+      }
+    }else if( flags==LSM_END_DELETE ){
+      /* When inserting an start-delete-range entry, if the key that
+      ** occurs immediately after the new entry is already an END_DELETE,
+      ** then the new entry is not required.  */
+      if( (res<0  && treeNextIsEndDelete(pDb, &csr))
+       || (res>=0 && (pRes->flags & LSM_END_DELETE))
+      ){
+        goto insert_entry_out;
+      }
+    }
+
+    if( res==0 && (flags & (LSM_END_DELETE|LSM_START_DELETE)) ){
+      if( pRes->flags & LSM_INSERT ){
+        nVal = pRes->nValue;
+        pVal = TKV_VAL(pRes);
+      }
+      flags = flags | pRes->flags;
+    }
+
+    if( flags & (LSM_INSERT|LSM_POINT_DELETE) ){
+      if( (res<0 && (pRes->flags & LSM_START_DELETE))
+       || (res>0 && (pRes->flags & LSM_END_DELETE)) 
+      ){
+        flags = flags | (LSM_END_DELETE|LSM_START_DELETE);
+      }else if( res==0 ){
+        flags = flags | (pRes->flags & (LSM_END_DELETE|LSM_START_DELETE));
+      }
+    }
+  }else{
+    memset(&csr, 0, sizeof(TreeCursor));
+  }
+
+  /* Allocate and populate a new key-value pair structure */
+  pTreeKey = newTreeKey(pDb, &iTreeKey, pKey, nKey, pVal, nVal, &rc);
+  if( rc!=LSM_OK ) return rc;
+  assert( pTreeKey->flags==0 || pTreeKey->flags==LSM_CONTIGUOUS );
+  pTreeKey->flags |= flags;
+
+  if( p->iRoot==0 ){
+    /* The tree is completely empty. Add a new root node and install
+    ** (pKey/nKey) as the middle entry. Even though it is a leaf at the
+    ** moment, use newTreeNode() to allocate the node (i.e. allocate enough
+    ** space for the fields used by interior nodes). This is because the
+    ** treeInsert() routine may convert this node to an interior node. */
+    TreeNode *pRoot = newTreeNode(pDb, &p->iRoot, &rc);
+    if( rc==LSM_OK ){
+      assert( p->nHeight==0 );
+      pRoot->aiKeyPtr[1] = iTreeKey;
+      p->nHeight = 1;
+    }
+  }else{
+    if( res==0 ){
+      /* The search found a match within the tree. */
+      treeOverwriteKey(pDb, &csr, iTreeKey, &rc);
+    }else{
+      /* The cursor now points to the leaf node into which the new entry should
+      ** be inserted. There may or may not be a free slot within the leaf for
+      ** the new key-value pair. 
+      **
+      ** iSlot is set to the index of the key within pLeaf that the new key
+      ** should be inserted to the left of (or to a value 1 greater than the
+      ** index of the rightmost key if the new key is larger than all keys
+      ** currently stored in the node).
+      */
+      int iSlot = csr.aiCell[csr.iNode] + (res<0);
+      if( csr.iNode==0 ){
+        rc = treeInsert(pDb, &csr, 0, iTreeKey, 0, iSlot);
+      }else{
+        rc = treeInsertLeaf(pDb, &csr, iTreeKey, iSlot);
+      }
+    }
+  }
+
+#if 0
+  dump_tree_contents(pDb, "after");
+#endif
+ insert_entry_out:
+  tblobFree(pDb, &csr.blob);
+  assert_tree_looks_ok(rc, pTree);
+  return rc;
+}
+
+/*
+** Insert a new entry into the in-memory tree.
+**
+** If the value of the 5th parameter, nVal, is negative, then a delete-marker
+** is inserted into the tree. In this case the value pointer, pVal, must be
+** NULL.
+*/
+int lsmTreeInsert(
+  lsm_db *pDb,                    /* Database handle */
+  void *pKey,                     /* Pointer to key data */
+  int nKey,                       /* Size of key data in bytes */
+  void *pVal,                     /* Pointer to value data (or NULL) */
+  int nVal                        /* Bytes in value data (or -ve for delete) */
+){
+  int flags;
+  if( nVal<0 ){
+    flags = LSM_POINT_DELETE;
+  }else{
+    flags = LSM_INSERT;
+  }
+
+  return treeInsertEntry(pDb, flags, pKey, nKey, pVal, nVal);
+}
+
+static int treeDeleteEntry(lsm_db *db, TreeCursor *pCsr, u32 iNewptr){
+  TreeRoot *p = &db->treehdr.root;
+  TreeNode *pNode = pCsr->apTreeNode[pCsr->iNode];
+  int iSlot = pCsr->aiCell[pCsr->iNode];
+  int bLeaf;
+  int rc = LSM_OK;
+
+  assert( pNode->aiKeyPtr[1] );
+  assert( pNode->aiKeyPtr[iSlot] );
+  assert( iSlot==0 || iSlot==1 || iSlot==2 );
+  assert( ((u32)pCsr->iNode==(db->treehdr.root.nHeight-1))==(iNewptr==0) );
+
+  bLeaf = ((u32)pCsr->iNode==(p->nHeight-1) && p->nHeight>1);
+  
+  if( pNode->aiKeyPtr[0] || pNode->aiKeyPtr[2] ){
+    /* There are currently at least 2 keys on this node. So just create
+    ** a new copy of the node with one of the keys removed. If the node
+    ** happens to be the root node of the tree, allocate an entire 
+    ** TreeNode structure instead of just a TreeLeaf.  */
+    TreeNode *pNew;
+    u32 iNew;
+
+    if( bLeaf ){
+      pNew = (TreeNode *)newTreeLeaf(db, &iNew, &rc);
+    }else{
+      pNew = newTreeNode(db, &iNew, &rc);
+    }
+    if( pNew ){
+      int i;
+      int iOut = 1;
+      for(i=0; i<4; i++){
+        if( i==iSlot ){
+          i++;
+          if( bLeaf==0 ) pNew->aiChildPtr[iOut] = iNewptr;
+          if( i<3 ) pNew->aiKeyPtr[iOut] = pNode->aiKeyPtr[i];
+          iOut++;
+        }else if( bLeaf || p->nHeight==1 ){
+          if( i<3 && pNode->aiKeyPtr[i] ){
+            pNew->aiKeyPtr[iOut++] = pNode->aiKeyPtr[i];
+          }
+        }else{
+          if( getChildPtr(pNode, WORKING_VERSION, i) ){
+            pNew->aiChildPtr[iOut] = getChildPtr(pNode, WORKING_VERSION, i);
+            if( i<3 ) pNew->aiKeyPtr[iOut] = pNode->aiKeyPtr[i];
+            iOut++;
+          }
+        }
+      }
+      assert( iOut<=4 );
+      assert( bLeaf || pNew->aiChildPtr[0]==0 );
+      pCsr->iNode--;
+      rc = treeUpdatePtr(db, pCsr, iNew);
+    }
+
+  }else if( pCsr->iNode==0 ){
+    /* Removing the only key in the root node. iNewptr is the new root. */
+    assert( iSlot==1 );
+    db->treehdr.root.iRoot = iNewptr;
+    db->treehdr.root.nHeight--;
+
+  }else{
+    /* There is only one key on this node and the node is not the root
+    ** node. Find a peer for this node. Then redistribute the contents of
+    ** the peer and the parent cell between the parent and either one or
+    ** two new nodes.  */
+    TreeNode *pParent;            /* Parent tree node */
+    int iPSlot;
+    u32 iPeer;                    /* Pointer to peer leaf node */
+    int iDir;
+    TreeNode *pPeer;              /* The peer leaf node */
+    TreeNode *pNew1; u32 iNew1;   /* First new leaf node */
+
+    assert( iSlot==1 );
+
+    pParent = pCsr->apTreeNode[pCsr->iNode-1];
+    iPSlot = pCsr->aiCell[pCsr->iNode-1];
+
+    if( iPSlot>0 && getChildPtr(pParent, WORKING_VERSION, iPSlot-1) ){
+      iDir = -1;
+    }else{
+      iDir = +1;
+    }
+    iPeer = getChildPtr(pParent, WORKING_VERSION, iPSlot+iDir);
+    pPeer = (TreeNode *)treeShmptr(db, iPeer);
+    assertIsWorkingChild(db, pNode, pParent, iPSlot);
+
+    /* Allocate the first new leaf node. This is always required. */
+    if( bLeaf ){
+      pNew1 = (TreeNode *)newTreeLeaf(db, &iNew1, &rc);
+    }else{
+      pNew1 = (TreeNode *)newTreeNode(db, &iNew1, &rc);
+    }
+
+    if( pPeer->aiKeyPtr[0] && pPeer->aiKeyPtr[2] ){
+      /* Peer node is completely full. This means that two new leaf nodes
+      ** and a new parent node are required. */
+
+      TreeNode *pNew2; u32 iNew2; /* Second new leaf node */
+      TreeNode *pNewP; u32 iNewP; /* New parent node */
+
+      if( bLeaf ){
+        pNew2 = (TreeNode *)newTreeLeaf(db, &iNew2, &rc);
+      }else{
+        pNew2 = (TreeNode *)newTreeNode(db, &iNew2, &rc);
+      }
+      pNewP = copyTreeNode(db, pParent, &iNewP, &rc);
+
+      if( iDir==-1 ){
+        pNew1->aiKeyPtr[1] = pPeer->aiKeyPtr[0];
+        if( bLeaf==0 ){
+          pNew1->aiChildPtr[1] = getChildPtr(pPeer, WORKING_VERSION, 0);
+          pNew1->aiChildPtr[2] = getChildPtr(pPeer, WORKING_VERSION, 1);
+        }
+
+        pNewP->aiChildPtr[iPSlot-1] = iNew1;
+        pNewP->aiKeyPtr[iPSlot-1] = pPeer->aiKeyPtr[1];
+        pNewP->aiChildPtr[iPSlot] = iNew2;
+
+        pNew2->aiKeyPtr[0] = pPeer->aiKeyPtr[2];
+        pNew2->aiKeyPtr[1] = pParent->aiKeyPtr[iPSlot-1];
+        if( bLeaf==0 ){
+          pNew2->aiChildPtr[0] = getChildPtr(pPeer, WORKING_VERSION, 2);
+          pNew2->aiChildPtr[1] = getChildPtr(pPeer, WORKING_VERSION, 3);
+          pNew2->aiChildPtr[2] = iNewptr;
+        }
+      }else{
+        pNew1->aiKeyPtr[1] = pParent->aiKeyPtr[iPSlot];
+        if( bLeaf==0 ){
+          pNew1->aiChildPtr[1] = iNewptr;
+          pNew1->aiChildPtr[2] = getChildPtr(pPeer, WORKING_VERSION, 0);
+        }
+
+        pNewP->aiChildPtr[iPSlot] = iNew1;
+        pNewP->aiKeyPtr[iPSlot] = pPeer->aiKeyPtr[0];
+        pNewP->aiChildPtr[iPSlot+1] = iNew2;
+
+        pNew2->aiKeyPtr[0] = pPeer->aiKeyPtr[1];
+        pNew2->aiKeyPtr[1] = pPeer->aiKeyPtr[2];
+        if( bLeaf==0 ){
+          pNew2->aiChildPtr[0] = getChildPtr(pPeer, WORKING_VERSION, 1);
+          pNew2->aiChildPtr[1] = getChildPtr(pPeer, WORKING_VERSION, 2);
+          pNew2->aiChildPtr[2] = getChildPtr(pPeer, WORKING_VERSION, 3);
+        }
+      }
+      assert( pCsr->iNode>=1 );
+      pCsr->iNode -= 2;
+      if( rc==LSM_OK ){
+        assert( pNew1->aiKeyPtr[1] && pNew2->aiKeyPtr[1] );
+        rc = treeUpdatePtr(db, pCsr, iNewP);
+      }
+    }else{
+      int iKOut = 0;
+      int iPOut = 0;
+      int i;
+
+      pCsr->iNode--;
+
+      if( iDir==1 ){
+        pNew1->aiKeyPtr[iKOut++] = pParent->aiKeyPtr[iPSlot];
+        if( bLeaf==0 ) pNew1->aiChildPtr[iPOut++] = iNewptr;
+      }
+      for(i=0; i<3; i++){
+        if( pPeer->aiKeyPtr[i] ){
+          pNew1->aiKeyPtr[iKOut++] = pPeer->aiKeyPtr[i];
+        }
+      }
+      if( bLeaf==0 ){
+        for(i=0; i<4; i++){
+          if( getChildPtr(pPeer, WORKING_VERSION, i) ){
+            pNew1->aiChildPtr[iPOut++] = getChildPtr(pPeer, WORKING_VERSION, i);
+          }
+        }
+      }
+      if( iDir==-1 ){
+        iPSlot--;
+        pNew1->aiKeyPtr[iKOut++] = pParent->aiKeyPtr[iPSlot];
+        if( bLeaf==0 ) pNew1->aiChildPtr[iPOut++] = iNewptr;
+        pCsr->aiCell[pCsr->iNode] = (u8)iPSlot;
+      }
+
+      rc = treeDeleteEntry(db, pCsr, iNew1);
+    }
+  }
+
+  return rc;
+}
+
+/*
+** Delete a range of keys from the tree structure (i.e. the lsm_delete_range()
+** function, not lsm_delete()).
+**
+** This is a two step process: 
+**
+**     1) Remove all entries currently stored in the tree that have keys
+**        that fall into the deleted range.
+**
+**        TODO: There are surely good ways to optimize this step - removing 
+**        a range of keys from a b-tree. But for now, this function removes
+**        them one at a time using the usual approach.
+**
+**     2) Unless the largest key smaller than or equal to (pKey1/nKey1) is
+**        already marked as START_DELETE, insert a START_DELETE key. 
+**        Similarly, unless the smallest key greater than or equal to
+**        (pKey2/nKey2) is already START_END, insert a START_END key.
+*/
+int lsmTreeDelete(
+  lsm_db *db,
+  void *pKey1, int nKey1,         /* Start of range */
+  void *pKey2, int nKey2          /* End of range */
+){
+  int rc = LSM_OK;
+  int bDone = 0;
+  TreeRoot *p = &db->treehdr.root;
+  TreeBlob blob = {0, 0};
+
+  /* The range must be sensible - that (key1 < key2). */
+  assert( treeKeycmp(pKey1, nKey1, pKey2, nKey2)<0 );
+  assert( assert_delete_ranges_match(db) );
+
+#if 0
+  static int nCall = 0;
+  printf("\n");
+  nCall++;
+  printf("%d delete %s .. %s\n", nCall, (char *)pKey1, (char *)pKey2);
+  dump_tree_contents(db, "before delete");
+#endif
+
+  /* Step 1. This loop runs until the tree contains no keys within the
+  ** range being deleted. Or until an error occurs. */
+  while( bDone==0 && rc==LSM_OK ){
+    int res;
+    TreeCursor csr;               /* Cursor to seek to first key in range */
+    void *pDel; int nDel;         /* Key to (possibly) delete this iteration */
+#ifndef NDEBUG
+    int nEntry = treeCountEntries(db);
+#endif
+
+    /* Seek the cursor to the first entry in the tree greater than pKey1. */
+    treeCursorInit(db, 0, &csr);
+    lsmTreeCursorSeek(&csr, pKey1, nKey1, &res);
+    if( res<=0 && lsmTreeCursorValid(&csr) ) lsmTreeCursorNext(&csr);
+
+    /* If there is no such entry, or if it is greater than pKey2, then the
+    ** tree now contains no keys in the range being deleted. In this case
+    ** break out of the loop.  */
+    bDone = 1;
+    if( lsmTreeCursorValid(&csr) ){
+      lsmTreeCursorKey(&csr, 0, &pDel, &nDel);
+      if( treeKeycmp(pDel, nDel, pKey2, nKey2)<0 ) bDone = 0;
+    }
+
+    if( bDone==0 ){
+      if( (u32)csr.iNode==(p->nHeight-1) ){
+        /* The element to delete already lies on a leaf node */
+        rc = treeDeleteEntry(db, &csr, 0);
+      }else{
+        /* 1. Overwrite the current key with a copy of the next key in the 
+        **    tree (key N).
+        **
+        ** 2. Seek to key N (cursor will stop at the internal node copy of
+        **    N). Move to the next key (original copy of N). Delete
+        **    this entry. 
+        */
+        u32 iKey;
+        TreeKey *pKey;
+        int iNode = csr.iNode;
+        lsmTreeCursorNext(&csr);
+        assert( (u32)csr.iNode==(p->nHeight-1) );
+
+        iKey = csr.apTreeNode[csr.iNode]->aiKeyPtr[csr.aiCell[csr.iNode]];
+        lsmTreeCursorPrev(&csr);
+
+        treeOverwriteKey(db, &csr, iKey, &rc);
+        pKey = treeShmkey(db, iKey, TKV_LOADKEY, &blob, &rc);
+        if( pKey ){
+          rc = lsmTreeCursorSeek(&csr, TKV_KEY(pKey), pKey->nKey, &res);
+        }
+        if( rc==LSM_OK ){
+          assert( res==0 && csr.iNode==iNode );
+          rc = lsmTreeCursorNext(&csr);
+          if( rc==LSM_OK ){
+            rc = treeDeleteEntry(db, &csr, 0);
+          }
+        }
+      }
+    }
+
+    /* Clean up any memory allocated by the cursor. */
+    tblobFree(db, &csr.blob);
+#if 0
+    dump_tree_contents(db, "ddd delete");
+#endif
+    assert( bDone || treeCountEntries(db)==(nEntry-1) );
+  }
+
+#if 0
+  dump_tree_contents(db, "during delete");
+#endif
+
+  /* Now insert the START_DELETE and END_DELETE keys. */
+  if( rc==LSM_OK ){
+    rc = treeInsertEntry(db, LSM_START_DELETE, pKey1, nKey1, 0, -1);
+  }
+#if 0
+  dump_tree_contents(db, "during delete 2");
+#endif
+  if( rc==LSM_OK ){
+    rc = treeInsertEntry(db, LSM_END_DELETE, pKey2, nKey2, 0, -1);
+  }
+
+#if 0
+  dump_tree_contents(db, "after delete");
+#endif
+
+  tblobFree(db, &blob);
+  assert( assert_delete_ranges_match(db) );
+  return rc;
+}
+
+/*
+** Return, in bytes, the amount of memory currently used by the tree 
+** structure.
+*/
+int lsmTreeSize(lsm_db *pDb){
+  return pDb->treehdr.root.nByte;
+}
+
+/*
+** Open a cursor on the in-memory tree pTree.
+*/
+int lsmTreeCursorNew(lsm_db *pDb, int bOld, TreeCursor **ppCsr){
+  TreeCursor *pCsr;
+  *ppCsr = pCsr = lsmMalloc(pDb->pEnv, sizeof(TreeCursor));
+  if( pCsr ){
+    treeCursorInit(pDb, bOld, pCsr);
+    return LSM_OK;
+  }
+  return LSM_NOMEM_BKPT;
+}
+
+/*
+** Close an in-memory tree cursor.
+*/
+void lsmTreeCursorDestroy(TreeCursor *pCsr){
+  if( pCsr ){
+    tblobFree(pCsr->pDb, &pCsr->blob);
+    lsmFree(pCsr->pDb->pEnv, pCsr);
+  }
+}
+
+void lsmTreeCursorReset(TreeCursor *pCsr){
+  if( pCsr ){
+    pCsr->iNode = -1;
+    pCsr->pSave = 0;
+  }
+}
+
+#ifndef NDEBUG
+static int treeCsrCompare(TreeCursor *pCsr, void *pKey, int nKey, int *pRc){
+  TreeKey *p;
+  int cmp = 0;
+  assert( pCsr->iNode>=0 );
+  p = csrGetKey(pCsr, &pCsr->blob, pRc);
+  if( p ){
+    cmp = treeKeycmp(TKV_KEY(p), p->nKey, pKey, nKey);
+  }
+  return cmp;
+}
+#endif
+
+
+/*
+** Attempt to seek the cursor passed as the first argument to key (pKey/nKey)
+** in the tree structure. If an exact match for the key is found, leave the
+** cursor pointing to it and set *pRes to zero before returning. If an
+** exact match cannot be found, do one of the following:
+**
+**   * Leave the cursor pointing to the smallest element in the tree that 
+**     is larger than the key and set *pRes to +1, or
+**
+**   * Leave the cursor pointing to the largest element in the tree that 
+**     is smaller than the key and set *pRes to -1, or
+**
+**   * If the tree is empty, leave the cursor at EOF and set *pRes to -1.
+*/
+int lsmTreeCursorSeek(TreeCursor *pCsr, void *pKey, int nKey, int *pRes){
+  int rc = LSM_OK;                /* Return code */
+  lsm_db *pDb = pCsr->pDb;
+  TreeRoot *pRoot = pCsr->pRoot;
+  u32 iNodePtr;                   /* Location of current node in search */
+
+  /* Discard any saved position data */
+  treeCursorRestore(pCsr, 0);
+
+  iNodePtr = pRoot->iRoot;
+  if( iNodePtr==0 ){
+    /* Either an error occurred or the tree is completely empty. */
+    assert( rc!=LSM_OK || pRoot->iRoot==0 );
+    *pRes = -1;
+    pCsr->iNode = -1;
+  }else{
+    TreeBlob b = {0, 0};
+    int res = 0;                  /* Result of comparison function */
+    int iNode = -1;
+    while( iNodePtr ){
+      TreeNode *pNode;            /* Node at location iNodePtr */
+      int iTest;                  /* Index of second key to test (0 or 2) */
+      u32 iTreeKey;
+      TreeKey *pTreeKey;          /* Key to compare against */
+
+      pNode = (TreeNode *)treeShmptrUnsafe(pDb, iNodePtr);
+      iNode++;
+      pCsr->apTreeNode[iNode] = pNode;
+
+      /* Compare (pKey/nKey) with the key in the middle slot of B-tree node
+      ** pNode. The middle slot is never empty. If the comparison is a match,
+      ** then the search is finished. Break out of the loop. */
+      pTreeKey = (TreeKey*)treeShmptrUnsafe(pDb, pNode->aiKeyPtr[1]);
+      if( !(pTreeKey->flags & LSM_CONTIGUOUS) ){
+        pTreeKey = treeShmkey(pDb, pNode->aiKeyPtr[1], TKV_LOADKEY, &b, &rc);
+        if( rc!=LSM_OK ) break;
+      }
+      res = treeKeycmp((void *)&pTreeKey[1], pTreeKey->nKey, pKey, nKey);
+      if( res==0 ){
+        pCsr->aiCell[iNode] = 1;
+        break;
+      }
+
+      /* Based on the results of the previous comparison, compare (pKey/nKey)
+      ** to either the left or right key of the B-tree node, if such a key
+      ** exists. */
+      iTest = (res>0 ? 0 : 2);
+      iTreeKey = pNode->aiKeyPtr[iTest];
+      if( iTreeKey ){
+        pTreeKey = (TreeKey*)treeShmptrUnsafe(pDb, iTreeKey);
+        if( !(pTreeKey->flags & LSM_CONTIGUOUS) ){
+          pTreeKey = treeShmkey(pDb, iTreeKey, TKV_LOADKEY, &b, &rc);
+          if( rc ) break;
+        }
+        res = treeKeycmp((void *)&pTreeKey[1], pTreeKey->nKey, pKey, nKey);
+        if( res==0 ){
+          pCsr->aiCell[iNode] = (u8)iTest;
+          break;
+        }
+      }else{
+        iTest = 1;
+      }
+
+      if( (u32)iNode<(pRoot->nHeight-1) ){
+        iNodePtr = getChildPtr(pNode, pRoot->iTransId, iTest + (res<0));
+      }else{
+        iNodePtr = 0;
+      }
+      pCsr->aiCell[iNode] = (u8)(iTest + (iNodePtr && (res<0)));
+    }
+
+    *pRes = res;
+    pCsr->iNode = iNode;
+    tblobFree(pDb, &b);
+  }
+
+  /* assert() that *pRes has been set properly */
+#ifndef NDEBUG
+  if( rc==LSM_OK && lsmTreeCursorValid(pCsr) ){
+    int cmp = treeCsrCompare(pCsr, pKey, nKey, &rc);
+    assert( rc!=LSM_OK || *pRes==cmp || (*pRes ^ cmp)>0 );
+  }
+#endif
+
+  return rc;
+}
+
+int lsmTreeCursorNext(TreeCursor *pCsr){
+#ifndef NDEBUG
+  TreeKey *pK1;
+  TreeBlob key1 = {0, 0};
+#endif
+  lsm_db *pDb = pCsr->pDb;
+  TreeRoot *pRoot = pCsr->pRoot;
+  const int iLeaf = pRoot->nHeight-1;
+  int iCell; 
+  int rc = LSM_OK; 
+  TreeNode *pNode; 
+
+  /* Restore the cursor position, if required */
+  int iRestore = 0;
+  treeCursorRestore(pCsr, &iRestore);
+  if( iRestore>0 ) return LSM_OK;
+
+  /* Save a pointer to the current key. This is used in an assert() at the
+  ** end of this function - to check that the 'next' key really is larger
+  ** than the current key. */
+#ifndef NDEBUG
+  pK1 = csrGetKey(pCsr, &key1, &rc);
+  if( rc!=LSM_OK ) return rc;
+#endif
+
+  assert( lsmTreeCursorValid(pCsr) );
+  assert( pCsr->aiCell[pCsr->iNode]<3 );
+
+  pNode = pCsr->apTreeNode[pCsr->iNode];
+  iCell = ++pCsr->aiCell[pCsr->iNode];
+
+  /* If the current node is not a leaf, and the current cell has sub-tree
+  ** associated with it, descend to the left-most key on the left-most
+  ** leaf of the sub-tree.  */
+  if( pCsr->iNode<iLeaf && getChildPtr(pNode, pRoot->iTransId, iCell) ){
+    do {
+      u32 iNodePtr;
+      pCsr->iNode++;
+      iNodePtr = getChildPtr(pNode, pRoot->iTransId, iCell);
+      pNode = (TreeNode *)treeShmptr(pDb, iNodePtr);
+      pCsr->apTreeNode[pCsr->iNode] = pNode;
+      iCell = pCsr->aiCell[pCsr->iNode] = (pNode->aiKeyPtr[0]==0);
+    }while( pCsr->iNode < iLeaf );
+  }
+
+  /* Otherwise, the next key is found by following pointer up the tree 
+  ** until there is a key immediately to the right of the pointer followed 
+  ** to reach the sub-tree containing the current key. */
+  else if( iCell>=3 || pNode->aiKeyPtr[iCell]==0 ){
+    while( (--pCsr->iNode)>=0 ){
+      iCell = pCsr->aiCell[pCsr->iNode];
+      if( iCell<3 && pCsr->apTreeNode[pCsr->iNode]->aiKeyPtr[iCell] ) break;
+    }
+  }
+
+#ifndef NDEBUG
+  if( pCsr->iNode>=0 ){
+    TreeKey *pK2 = csrGetKey(pCsr, &pCsr->blob, &rc);
+    assert( rc||treeKeycmp(TKV_KEY(pK2),pK2->nKey,TKV_KEY(pK1),pK1->nKey)>=0 );
+  }
+  tblobFree(pDb, &key1);
+#endif
+
+  return rc;
+}
+
+int lsmTreeCursorPrev(TreeCursor *pCsr){
+#ifndef NDEBUG
+  TreeKey *pK1;
+  TreeBlob key1 = {0, 0};
+#endif
+  lsm_db *pDb = pCsr->pDb;
+  TreeRoot *pRoot = pCsr->pRoot;
+  const int iLeaf = pRoot->nHeight-1;
+  int iCell; 
+  int rc = LSM_OK; 
+  TreeNode *pNode; 
+
+  /* Restore the cursor position, if required */
+  int iRestore = 0;
+  treeCursorRestore(pCsr, &iRestore);
+  if( iRestore<0 ) return LSM_OK;
+
+  /* Save a pointer to the current key. This is used in an assert() at the
+  ** end of this function - to check that the 'next' key really is smaller
+  ** than the current key. */
+#ifndef NDEBUG
+  pK1 = csrGetKey(pCsr, &key1, &rc);
+  if( rc!=LSM_OK ) return rc;
+#endif
+
+  assert( lsmTreeCursorValid(pCsr) );
+  pNode = pCsr->apTreeNode[pCsr->iNode];
+  iCell = pCsr->aiCell[pCsr->iNode];
+  assert( iCell>=0 && iCell<3 );
+
+  /* If the current node is not a leaf, and the current cell has sub-tree
+  ** associated with it, descend to the right-most key on the right-most
+  ** leaf of the sub-tree.  */
+  if( pCsr->iNode<iLeaf && getChildPtr(pNode, pRoot->iTransId, iCell) ){
+    do {
+      u32 iNodePtr;
+      pCsr->iNode++;
+      iNodePtr = getChildPtr(pNode, pRoot->iTransId, iCell);
+      pNode = (TreeNode *)treeShmptr(pDb, iNodePtr);
+      if( rc!=LSM_OK ) break;
+      pCsr->apTreeNode[pCsr->iNode] = pNode;
+      iCell = 1 + (pNode->aiKeyPtr[2]!=0) + (pCsr->iNode < iLeaf);
+      pCsr->aiCell[pCsr->iNode] = (u8)iCell;
+    }while( pCsr->iNode < iLeaf );
+  }
+
+  /* Otherwise, the next key is found by following pointer up the tree until
+  ** there is a key immediately to the left of the pointer followed to reach
+  ** the sub-tree containing the current key. */
+  else{
+    do {
+      iCell = pCsr->aiCell[pCsr->iNode]-1;
+      if( iCell>=0 && pCsr->apTreeNode[pCsr->iNode]->aiKeyPtr[iCell] ) break;
+    }while( (--pCsr->iNode)>=0 );
+    pCsr->aiCell[pCsr->iNode] = (u8)iCell;
+  }
+
+#ifndef NDEBUG
+  if( pCsr->iNode>=0 ){
+    TreeKey *pK2 = csrGetKey(pCsr, &pCsr->blob, &rc);
+    assert( rc || treeKeycmp(TKV_KEY(pK2),pK2->nKey,TKV_KEY(pK1),pK1->nKey)<0 );
+  }
+  tblobFree(pDb, &key1);
+#endif
+
+  return rc;
+}
+
+/*
+** Move the cursor to the first (bLast==0) or last (bLast!=0) entry in the
+** in-memory tree.
+*/
+int lsmTreeCursorEnd(TreeCursor *pCsr, int bLast){
+  lsm_db *pDb = pCsr->pDb;
+  TreeRoot *pRoot = pCsr->pRoot;
+  int rc = LSM_OK;
+
+  u32 iNodePtr;
+  pCsr->iNode = -1;
+
+  /* Discard any saved position data */
+  treeCursorRestore(pCsr, 0);
+
+  iNodePtr = pRoot->iRoot;
+  while( iNodePtr ){
+    int iCell;
+    TreeNode *pNode;
+
+    pNode = (TreeNode *)treeShmptr(pDb, iNodePtr);
+    if( rc ) break;
+
+    if( bLast ){
+      iCell = ((pNode->aiKeyPtr[2]==0) ? 2 : 3);
+    }else{
+      iCell = ((pNode->aiKeyPtr[0]==0) ? 1 : 0);
+    }
+    pCsr->iNode++;
+    pCsr->apTreeNode[pCsr->iNode] = pNode;
+
+    if( (u32)pCsr->iNode<pRoot->nHeight-1 ){
+      iNodePtr = getChildPtr(pNode, pRoot->iTransId, iCell);
+    }else{
+      iNodePtr = 0;
+    }
+    pCsr->aiCell[pCsr->iNode] = (u8)(iCell - (iNodePtr==0 && bLast));
+  }
+
+  return rc;
+}
+
+int lsmTreeCursorFlags(TreeCursor *pCsr){
+  int flags = 0;
+  if( pCsr && pCsr->iNode>=0 ){
+    int rc = LSM_OK;
+    TreeKey *pKey = (TreeKey *)treeShmptrUnsafe(pCsr->pDb,
+        pCsr->apTreeNode[pCsr->iNode]->aiKeyPtr[pCsr->aiCell[pCsr->iNode]]
+    );
+    assert( rc==LSM_OK );
+    flags = (pKey->flags & ~LSM_CONTIGUOUS);
+  }
+  return flags;
+}
+
+int lsmTreeCursorKey(TreeCursor *pCsr, int *pFlags, void **ppKey, int *pnKey){
+  TreeKey *pTreeKey;
+  int rc = LSM_OK;
+
+  assert( lsmTreeCursorValid(pCsr) );
+
+  pTreeKey = pCsr->pSave;
+  if( !pTreeKey ){
+    pTreeKey = csrGetKey(pCsr, &pCsr->blob, &rc);
+  }
+  if( rc==LSM_OK ){
+    *pnKey = pTreeKey->nKey;
+    if( pFlags ) *pFlags = pTreeKey->flags;
+    *ppKey = (void *)&pTreeKey[1];
+  }
+
+  return rc;
+}
+
+int lsmTreeCursorValue(TreeCursor *pCsr, void **ppVal, int *pnVal){
+  int res = 0;
+  int rc;
+
+  rc = treeCursorRestore(pCsr, &res);
+  if( res==0 ){
+    TreeKey *pTreeKey = csrGetKey(pCsr, &pCsr->blob, &rc);
+    if( rc==LSM_OK ){
+      if( pTreeKey->flags & LSM_INSERT ){
+        *pnVal = pTreeKey->nValue;
+        *ppVal = TKV_VAL(pTreeKey);
+      }else{
+        *ppVal = 0;
+        *pnVal = -1;
+      }
+    }
+  }else{
+    *ppVal = 0;
+    *pnVal = 0;
+  }
+
+  return rc;
+}
+
+/*
+** Return true if the cursor currently points to a valid entry. 
+*/
+int lsmTreeCursorValid(TreeCursor *pCsr){
+  return (pCsr && (pCsr->pSave || pCsr->iNode>=0));
+}
+
+/*
+** Store a mark in *pMark. Later on, a call to lsmTreeRollback() with a
+** pointer to the same TreeMark structure may be used to roll the tree
+** contents back to their current state.
+*/
+void lsmTreeMark(lsm_db *pDb, TreeMark *pMark){
+  pMark->iRoot = pDb->treehdr.root.iRoot;
+  pMark->nHeight = pDb->treehdr.root.nHeight;
+  pMark->iWrite = pDb->treehdr.iWrite;
+  pMark->nChunk = pDb->treehdr.nChunk;
+  pMark->iNextShmid = pDb->treehdr.iNextShmid;
+  pMark->iRollback = intArraySize(&pDb->rollback);
+}
+
+/*
+** Roll back to mark pMark. Structure *pMark should have been previously
+** populated by a call to lsmTreeMark().
+*/
+void lsmTreeRollback(lsm_db *pDb, TreeMark *pMark){
+  int iIdx;
+  int nIdx;
+  u32 iNext;
+  ShmChunk *pChunk;
+  u32 iChunk;
+  u32 iShmid;
+
+  /* Revert all required v2 pointers. */
+  nIdx = intArraySize(&pDb->rollback);
+  for(iIdx = pMark->iRollback; iIdx<nIdx; iIdx++){
+    TreeNode *pNode;
+    pNode = treeShmptr(pDb, intArrayEntry(&pDb->rollback, iIdx));
+    assert( pNode );
+    pNode->iV2 = 0;
+    pNode->iV2Child = 0;
+    pNode->iV2Ptr = 0;
+  }
+  intArrayTruncate(&pDb->rollback, pMark->iRollback);
+
+  /* Restore the free-chunk list. */
+  assert( pMark->iWrite!=0 );
+  iChunk = treeOffsetToChunk(pMark->iWrite-1);
+  pChunk = treeShmChunk(pDb, iChunk);
+  iNext = pChunk->iNext;
+  pChunk->iNext = 0;
+
+  pChunk = treeShmChunk(pDb, pDb->treehdr.iFirst);
+  iShmid = pChunk->iShmid-1;
+
+  while( iNext ){
+    u32 iFree = iNext;            /* Current chunk being rollback-freed */
+    ShmChunk *pFree;              /* Pointer to chunk iFree */
+
+    pFree = treeShmChunk(pDb, iFree);
+    iNext = pFree->iNext;
+
+    if( iFree<pMark->nChunk ){
+      pFree->iNext = pDb->treehdr.iFirst;
+      pFree->iShmid = iShmid--;
+      pDb->treehdr.iFirst = iFree;
+    }
+  }
+
+  /* Restore the tree-header fields */
+  pDb->treehdr.root.iRoot = pMark->iRoot;
+  pDb->treehdr.root.nHeight = pMark->nHeight;
+  pDb->treehdr.iWrite = pMark->iWrite;
+  pDb->treehdr.nChunk = pMark->nChunk;
+  pDb->treehdr.iNextShmid = pMark->iNextShmid;
+}
+
+/*
+** Load the in-memory tree header from shared-memory into pDb->treehdr.
+** If the header cannot be loaded, return LSM_PROTOCOL.
+**
+** If the header is successfully loaded and parameter piRead is not NULL,
+** is is set to 1 if the header was loaded from ShmHeader.hdr1, or 2 if
+** the header was loaded from ShmHeader.hdr2.
+*/
+int lsmTreeLoadHeader(lsm_db *pDb, int *piRead){
+  int nRem = LSM_ATTEMPTS_BEFORE_PROTOCOL;
+  while( (nRem--)>0 ){
+    ShmHeader *pShm = pDb->pShmhdr;
+
+    memcpy(&pDb->treehdr, &pShm->hdr1, sizeof(TreeHeader));
+    if( treeHeaderChecksumOk(&pDb->treehdr) ){
+      if( piRead ) *piRead = 1;
+      return LSM_OK;
+    }
+    memcpy(&pDb->treehdr, &pShm->hdr2, sizeof(TreeHeader));
+    if( treeHeaderChecksumOk(&pDb->treehdr) ){
+      if( piRead ) *piRead = 2;
+      return LSM_OK;
+    }
+
+    lsmShmBarrier(pDb);
+  }
+  return LSM_PROTOCOL_BKPT;
+}
+
+int lsmTreeLoadHeaderOk(lsm_db *pDb, int iRead){
+  TreeHeader *p = (iRead==1) ? &pDb->pShmhdr->hdr1 : &pDb->pShmhdr->hdr2;
+  assert( iRead==1 || iRead==2 );
+  return (0==memcmp(pDb->treehdr.aCksum, p->aCksum, sizeof(u32)*2));
+}
+
+/*
+** This function is called to conclude a transaction. If argument bCommit
+** is true, the transaction is committed. Otherwise it is rolled back.
+*/
+int lsmTreeEndTransaction(lsm_db *pDb, int bCommit){
+  ShmHeader *pShm = pDb->pShmhdr;
+
+  treeHeaderChecksum(&pDb->treehdr, pDb->treehdr.aCksum);
+  memcpy(&pShm->hdr2, &pDb->treehdr, sizeof(TreeHeader));
+  lsmShmBarrier(pDb);
+  memcpy(&pShm->hdr1, &pDb->treehdr, sizeof(TreeHeader));
+  pShm->bWriter = 0;
+  intArrayFree(pDb->pEnv, &pDb->rollback);
+
+  return LSM_OK;
+}
+
+#ifndef NDEBUG
+static int assert_delete_ranges_match(lsm_db *db){
+  int prev = 0;
+  TreeBlob blob = {0, 0};
+  TreeCursor csr;               /* Cursor used to iterate through tree */
+  int rc;
+
+  treeCursorInit(db, 0, &csr);
+  for( rc = lsmTreeCursorEnd(&csr, 0);
+       rc==LSM_OK && lsmTreeCursorValid(&csr);
+       rc = lsmTreeCursorNext(&csr)
+  ){
+    TreeKey *pKey = csrGetKey(&csr, &blob, &rc);
+    if( rc!=LSM_OK ) break;
+    assert( ((prev&LSM_START_DELETE)==0)==((pKey->flags&LSM_END_DELETE)==0) );
+    prev = pKey->flags;
+  }
+
+  tblobFree(csr.pDb, &csr.blob);
+  tblobFree(csr.pDb, &blob);
+
+  return 1;
+}
+
+static int treeCountEntries(lsm_db *db){
+  TreeCursor csr;               /* Cursor used to iterate through tree */
+  int rc;
+  int nEntry = 0;
+
+  treeCursorInit(db, 0, &csr);
+  for( rc = lsmTreeCursorEnd(&csr, 0);
+       rc==LSM_OK && lsmTreeCursorValid(&csr);
+       rc = lsmTreeCursorNext(&csr)
+  ){
+    nEntry++;
+  }
+
+  tblobFree(csr.pDb, &csr.blob);
+
+  return nEntry;
+}
+#endif
diff --git a/ext/lsm1/lsm_unix.c b/ext/lsm1/lsm_unix.c
new file mode 100644
index 0000000000000000000000000000000000000000..88952d15fc721ac19747a0cf284b7f7b28520c45
--- /dev/null
+++ b/ext/lsm1/lsm_unix.c
@@ -0,0 +1,753 @@
+/*
+** 2011-12-03
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** Unix-specific run-time environment implementation for LSM.
+*/
+
+#ifndef _WIN32
+
+#if defined(__GNUC__) || defined(__TINYC__)
+/* workaround for ftruncate() visibility on gcc. */
+# ifndef _XOPEN_SOURCE
+#  define _XOPEN_SOURCE 500
+# endif
+#endif
+
+#include <unistd.h>
+#include <sys/types.h>
+
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <assert.h>
+#include <string.h>
+
+#include <stdlib.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <ctype.h>
+
+#include <unistd.h>
+#include <errno.h>
+
+#include <sys/mman.h>
+#include "lsmInt.h"
+
+/* There is no fdatasync() call on Android */
+#ifdef __ANDROID__
+# define fdatasync(x) fsync(x)
+#endif
+
+/*
+** An open file is an instance of the following object
+*/
+typedef struct PosixFile PosixFile;
+struct PosixFile {
+  lsm_env *pEnv;                  /* The run-time environment */
+  const char *zName;              /* Full path to file */
+  int fd;                         /* The open file descriptor */
+  int shmfd;                      /* Shared memory file-descriptor */
+  void *pMap;                     /* Pointer to mapping of file fd */
+  off_t nMap;                     /* Size of mapping at pMap in bytes */
+  int nShm;                       /* Number of entries in array apShm[] */
+  void **apShm;                   /* Array of 32K shared memory segments */
+};
+
+static char *posixShmFile(PosixFile *p){
+  char *zShm;
+  int nName = strlen(p->zName);
+  zShm = (char *)lsmMalloc(p->pEnv, nName+4+1);
+  if( zShm ){
+    memcpy(zShm, p->zName, nName);
+    memcpy(&zShm[nName], "-shm", 5);
+  }
+  return zShm;
+}
+
+static int lsmPosixOsOpen(
+  lsm_env *pEnv,
+  const char *zFile,
+  int flags,
+  lsm_file **ppFile
+){
+  int rc = LSM_OK;
+  PosixFile *p;
+
+  p = lsm_malloc(pEnv, sizeof(PosixFile));
+  if( p==0 ){
+    rc = LSM_NOMEM;
+  }else{
+    int bReadonly = (flags & LSM_OPEN_READONLY);
+    int oflags = (bReadonly ? O_RDONLY : (O_RDWR|O_CREAT));
+    memset(p, 0, sizeof(PosixFile));
+    p->zName = zFile;
+    p->pEnv = pEnv;
+    p->fd = open(zFile, oflags, 0644);
+    if( p->fd<0 ){
+      lsm_free(pEnv, p);
+      p = 0;
+      if( errno==ENOENT ){
+        rc = lsmErrorBkpt(LSM_IOERR_NOENT);
+      }else{
+        rc = LSM_IOERR_BKPT;
+      }
+    }
+  }
+
+  *ppFile = (lsm_file *)p;
+  return rc;
+}
+
+static int lsmPosixOsWrite(
+  lsm_file *pFile,                /* File to write to */
+  lsm_i64 iOff,                   /* Offset to write to */
+  void *pData,                    /* Write data from this buffer */
+  int nData                       /* Bytes of data to write */
+){
+  int rc = LSM_OK;
+  PosixFile *p = (PosixFile *)pFile;
+  off_t offset;
+
+  offset = lseek(p->fd, (off_t)iOff, SEEK_SET);
+  if( offset!=iOff ){
+    rc = LSM_IOERR_BKPT;
+  }else{
+    ssize_t prc = write(p->fd, pData, (size_t)nData);
+    if( prc<0 ) rc = LSM_IOERR_BKPT;
+  }
+
+  return rc;
+}
+
+static int lsmPosixOsTruncate(
+  lsm_file *pFile,                /* File to write to */
+  lsm_i64 nSize                   /* Size to truncate file to */
+){
+  PosixFile *p = (PosixFile *)pFile;
+  int rc = LSM_OK;                /* Return code */
+  int prc;                        /* Posix Return Code */
+  struct stat sStat;              /* Result of fstat() invocation */
+  
+  prc = fstat(p->fd, &sStat);
+  if( prc==0 && sStat.st_size>nSize ){
+    prc = ftruncate(p->fd, (off_t)nSize);
+  }
+  if( prc<0 ) rc = LSM_IOERR_BKPT;
+
+  return rc;
+}
+
+static int lsmPosixOsRead(
+  lsm_file *pFile,                /* File to read from */
+  lsm_i64 iOff,                   /* Offset to read from */
+  void *pData,                    /* Read data into this buffer */
+  int nData                       /* Bytes of data to read */
+){
+  int rc = LSM_OK;
+  PosixFile *p = (PosixFile *)pFile;
+  off_t offset;
+
+  offset = lseek(p->fd, (off_t)iOff, SEEK_SET);
+  if( offset!=iOff ){
+    rc = LSM_IOERR_BKPT;
+  }else{
+    ssize_t prc = read(p->fd, pData, (size_t)nData);
+    if( prc<0 ){ 
+      rc = LSM_IOERR_BKPT;
+    }else if( prc<nData ){
+      memset(&((u8 *)pData)[prc], 0, nData - prc);
+    }
+
+  }
+
+  return rc;
+}
+
+static int lsmPosixOsSync(lsm_file *pFile){
+  int rc = LSM_OK;
+
+#ifndef LSM_NO_SYNC
+  PosixFile *p = (PosixFile *)pFile;
+  int prc = 0;
+
+  if( p->pMap ){
+    prc = msync(p->pMap, p->nMap, MS_SYNC);
+  }
+  if( prc==0 ) prc = fdatasync(p->fd);
+  if( prc<0 ) rc = LSM_IOERR_BKPT;
+#else
+  (void)pFile;
+#endif
+
+  return rc;
+}
+
+static int lsmPosixOsSectorSize(lsm_file *pFile){
+  return 512;
+}
+
+static int lsmPosixOsRemap(
+  lsm_file *pFile, 
+  lsm_i64 iMin, 
+  void **ppOut,
+  lsm_i64 *pnOut
+){
+  off_t iSz;
+  int prc;
+  PosixFile *p = (PosixFile *)pFile;
+  struct stat buf;
+
+  /* If the file is between 0 and 2MB in size, extend it in chunks of 256K.
+  ** Thereafter, in chunks of 1MB at a time.  */
+  const int aIncrSz[] = {256*1024, 1024*1024};
+  int nIncrSz = aIncrSz[iMin>(2*1024*1024)];
+
+  if( p->pMap ){
+    munmap(p->pMap, p->nMap);
+    *ppOut = p->pMap = 0;
+    *pnOut = p->nMap = 0;
+  }
+
+  if( iMin>=0 ){
+    memset(&buf, 0, sizeof(buf));
+    prc = fstat(p->fd, &buf);
+    if( prc!=0 ) return LSM_IOERR_BKPT;
+    iSz = buf.st_size;
+    if( iSz<iMin ){
+      iSz = ((iMin + nIncrSz-1) / nIncrSz) * nIncrSz;
+      prc = ftruncate(p->fd, iSz);
+      if( prc!=0 ) return LSM_IOERR_BKPT;
+    }
+
+    p->pMap = mmap(0, iSz, PROT_READ|PROT_WRITE, MAP_SHARED, p->fd, 0);
+    if( p->pMap==MAP_FAILED ){
+      p->pMap = 0;
+      return LSM_IOERR_BKPT;
+    }
+    p->nMap = iSz;
+  }
+
+  *ppOut = p->pMap;
+  *pnOut = p->nMap;
+  return LSM_OK;
+}
+
+static int lsmPosixOsFullpath(
+  lsm_env *pEnv,
+  const char *zName,
+  char *zOut,
+  int *pnOut
+){
+  int nBuf = *pnOut;
+  int nReq;
+
+  if( zName[0]!='/' ){
+    char *z;
+    char *zTmp;
+    int nTmp = 512;
+    zTmp = lsmMalloc(pEnv, nTmp);
+    while( zTmp ){
+      z = getcwd(zTmp, nTmp);
+      if( z || errno!=ERANGE ) break;
+      nTmp = nTmp*2;
+      zTmp = lsmReallocOrFree(pEnv, zTmp, nTmp);
+    }
+    if( zTmp==0 ) return LSM_NOMEM_BKPT;
+    if( z==0 ) return LSM_IOERR_BKPT;
+    assert( z==zTmp );
+
+    nTmp = strlen(zTmp);
+    nReq = nTmp + 1 + strlen(zName) + 1;
+    if( nReq<=nBuf ){
+      memcpy(zOut, zTmp, nTmp);
+      zOut[nTmp] = '/';
+      memcpy(&zOut[nTmp+1], zName, strlen(zName)+1);
+    }
+    lsmFree(pEnv, zTmp);
+  }else{
+    nReq = strlen(zName)+1;
+    if( nReq<=nBuf ){
+      memcpy(zOut, zName, strlen(zName)+1);
+    }
+  }
+
+  *pnOut = nReq;
+  return LSM_OK;
+}
+
+static int lsmPosixOsFileid(
+  lsm_file *pFile, 
+  void *pBuf,
+  int *pnBuf
+){
+  int prc;
+  int nBuf;
+  int nReq;
+  PosixFile *p = (PosixFile *)pFile;
+  struct stat buf;
+
+  nBuf = *pnBuf;
+  nReq = (sizeof(buf.st_dev) + sizeof(buf.st_ino));
+  *pnBuf = nReq;
+  if( nReq>nBuf ) return LSM_OK;
+
+  memset(&buf, 0, sizeof(buf));
+  prc = fstat(p->fd, &buf);
+  if( prc!=0 ) return LSM_IOERR_BKPT;
+
+  memcpy(pBuf, &buf.st_dev, sizeof(buf.st_dev));
+  memcpy(&(((u8 *)pBuf)[sizeof(buf.st_dev)]), &buf.st_ino, sizeof(buf.st_ino));
+  return LSM_OK;
+}
+
+static int lsmPosixOsUnlink(lsm_env *pEnv, const char *zFile){
+  int prc = unlink(zFile);
+  return prc ? LSM_IOERR_BKPT : LSM_OK;
+}
+
+static int lsmPosixOsLock(lsm_file *pFile, int iLock, int eType){
+  int rc = LSM_OK;
+  PosixFile *p = (PosixFile *)pFile;
+  static const short aType[3] = { F_UNLCK, F_RDLCK, F_WRLCK };
+  struct flock lock;
+
+  assert( aType[LSM_LOCK_UNLOCK]==F_UNLCK );
+  assert( aType[LSM_LOCK_SHARED]==F_RDLCK );
+  assert( aType[LSM_LOCK_EXCL]==F_WRLCK );
+  assert( eType>=0 && eType<array_size(aType) );
+  assert( iLock>0 && iLock<=32 );
+
+  memset(&lock, 0, sizeof(lock));
+  lock.l_whence = SEEK_SET;
+  lock.l_len = 1;
+  lock.l_type = aType[eType];
+  lock.l_start = (4096-iLock);
+
+  if( fcntl(p->fd, F_SETLK, &lock) ){
+    int e = errno;
+    if( e==EACCES || e==EAGAIN ){
+      rc = LSM_BUSY;
+    }else{
+      rc = LSM_IOERR_BKPT;
+    }
+  }
+
+  return rc;
+}
+
+static int lsmPosixOsTestLock(lsm_file *pFile, int iLock, int nLock, int eType){
+  int rc = LSM_OK;
+  PosixFile *p = (PosixFile *)pFile;
+  static const short aType[3] = { 0, F_RDLCK, F_WRLCK };
+  struct flock lock;
+
+  assert( eType==LSM_LOCK_SHARED || eType==LSM_LOCK_EXCL );
+  assert( aType[LSM_LOCK_SHARED]==F_RDLCK );
+  assert( aType[LSM_LOCK_EXCL]==F_WRLCK );
+  assert( eType>=0 && eType<array_size(aType) );
+  assert( iLock>0 && iLock<=32 );
+
+  memset(&lock, 0, sizeof(lock));
+  lock.l_whence = SEEK_SET;
+  lock.l_len = nLock;
+  lock.l_type = aType[eType];
+  lock.l_start = (4096-iLock-nLock+1);
+
+  if( fcntl(p->fd, F_GETLK, &lock) ){
+    rc = LSM_IOERR_BKPT;
+  }else if( lock.l_type!=F_UNLCK ){
+    rc = LSM_BUSY;
+  }
+
+  return rc;
+}
+
+static int lsmPosixOsShmMap(lsm_file *pFile, int iChunk, int sz, void **ppShm){
+  PosixFile *p = (PosixFile *)pFile;
+
+  *ppShm = 0;
+  assert( sz==LSM_SHM_CHUNK_SIZE );
+  if( iChunk>=p->nShm ){
+    int i;
+    void **apNew;
+    int nNew = iChunk+1;
+    off_t nReq = nNew * LSM_SHM_CHUNK_SIZE;
+    struct stat sStat;
+
+    /* If the shared-memory file has not been opened, open it now. */
+    if( p->shmfd<=0 ){
+      char *zShm = posixShmFile(p);
+      if( !zShm ) return LSM_NOMEM_BKPT;
+      p->shmfd = open(zShm, O_RDWR|O_CREAT, 0644);
+      lsmFree(p->pEnv, zShm);
+      if( p->shmfd<0 ){ 
+        return LSM_IOERR_BKPT;
+      }
+    }
+
+    /* If the shared-memory file is not large enough to contain the 
+    ** requested chunk, cause it to grow.  */
+    if( fstat(p->shmfd, &sStat) ){
+      return LSM_IOERR_BKPT;
+    }
+    if( sStat.st_size<nReq ){
+      if( ftruncate(p->shmfd, nReq) ){
+        return LSM_IOERR_BKPT;
+      }
+    }
+
+    apNew = (void **)lsmRealloc(p->pEnv, p->apShm, sizeof(void *) * nNew);
+    if( !apNew ) return LSM_NOMEM_BKPT;
+    for(i=p->nShm; i<nNew; i++){
+      apNew[i] = 0;
+    }
+    p->apShm = apNew;
+    p->nShm = nNew;
+  }
+
+  if( p->apShm[iChunk]==0 ){
+    p->apShm[iChunk] = mmap(0, LSM_SHM_CHUNK_SIZE, 
+        PROT_READ|PROT_WRITE, MAP_SHARED, p->shmfd, iChunk*LSM_SHM_CHUNK_SIZE
+    );
+    if( p->apShm[iChunk]==MAP_FAILED ){
+      p->apShm[iChunk] = 0;
+      return LSM_IOERR_BKPT;
+    }
+  }
+
+  *ppShm = p->apShm[iChunk];
+  return LSM_OK;
+}
+
+static void lsmPosixOsShmBarrier(void){
+}
+
+static int lsmPosixOsShmUnmap(lsm_file *pFile, int bDelete){
+  PosixFile *p = (PosixFile *)pFile;
+  if( p->shmfd>0 ){
+    int i;
+    for(i=0; i<p->nShm; i++){
+      if( p->apShm[i] ){
+        munmap(p->apShm[i], LSM_SHM_CHUNK_SIZE);
+        p->apShm[i] = 0;
+      }
+    }
+    close(p->shmfd);
+    p->shmfd = 0;
+    if( bDelete ){
+      char *zShm = posixShmFile(p);
+      if( zShm ) unlink(zShm);
+      lsmFree(p->pEnv, zShm);
+    }
+  }
+  return LSM_OK;
+}
+
+
+static int lsmPosixOsClose(lsm_file *pFile){
+   PosixFile *p = (PosixFile *)pFile;
+   lsmPosixOsShmUnmap(pFile, 0);
+   if( p->pMap ) munmap(p->pMap, p->nMap);
+   close(p->fd);
+   lsm_free(p->pEnv, p->apShm);
+   lsm_free(p->pEnv, p);
+   return LSM_OK;
+}
+
+static int lsmPosixOsSleep(lsm_env *pEnv, int us){
+#if 0
+  /* Apparently on Android usleep() returns void */
+  if( usleep(us) ) return LSM_IOERR;
+#endif
+  usleep(us);
+  return LSM_OK;
+}
+
+/****************************************************************************
+** Memory allocation routines.
+*/
+#define BLOCK_HDR_SIZE ROUND8( sizeof(size_t) )
+
+static void *lsmPosixOsMalloc(lsm_env *pEnv, size_t N){
+  unsigned char * m;
+  N += BLOCK_HDR_SIZE;
+  m = (unsigned char *)malloc(N);
+  *((size_t*)m) = N;
+  return m + BLOCK_HDR_SIZE;
+}
+
+static void lsmPosixOsFree(lsm_env *pEnv, void *p){
+  if(p){
+    free( ((unsigned char *)p) - BLOCK_HDR_SIZE );
+  }
+}
+
+static void *lsmPosixOsRealloc(lsm_env *pEnv, void *p, size_t N){
+  unsigned char * m = (unsigned char *)p;
+  if(1>N){
+    lsmPosixOsFree( pEnv, p );
+    return NULL;
+  }else if(NULL==p){
+    return lsmPosixOsMalloc(pEnv, N);
+  }else{
+    void * re = NULL;
+    m -= BLOCK_HDR_SIZE;
+#if 0 /* arguable: don't shrink */
+    size_t * sz = (size_t*)m;
+    if(*sz >= (size_t)N){
+      return p;
+    }
+#endif
+    re = realloc( m, N + BLOCK_HDR_SIZE );
+    if(re){
+      m = (unsigned char *)re;
+      *((size_t*)m) = N;
+      return m + BLOCK_HDR_SIZE;
+    }else{
+      return NULL;
+    }
+  }
+}
+
+static size_t lsmPosixOsMSize(lsm_env *pEnv, void *p){
+  unsigned char * m = (unsigned char *)p;
+  return *((size_t*)(m-BLOCK_HDR_SIZE));
+}
+#undef BLOCK_HDR_SIZE
+
+
+#ifdef LSM_MUTEX_PTHREADS 
+/*************************************************************************
+** Mutex methods for pthreads based systems.  If LSM_MUTEX_PTHREADS is
+** missing then a no-op implementation of mutexes found in lsm_mutex.c
+** will be used instead.
+*/
+#include <pthread.h>
+
+typedef struct PthreadMutex PthreadMutex;
+struct PthreadMutex {
+  lsm_env *pEnv;
+  pthread_mutex_t mutex;
+#ifdef LSM_DEBUG
+  pthread_t owner;
+#endif
+};
+
+#ifdef LSM_DEBUG
+# define LSM_PTHREAD_STATIC_MUTEX { 0, PTHREAD_MUTEX_INITIALIZER, 0 }
+#else
+# define LSM_PTHREAD_STATIC_MUTEX { 0, PTHREAD_MUTEX_INITIALIZER }
+#endif
+
+static int lsmPosixOsMutexStatic(
+  lsm_env *pEnv,
+  int iMutex,
+  lsm_mutex **ppStatic
+){
+  static PthreadMutex sMutex[2] = {
+    LSM_PTHREAD_STATIC_MUTEX,
+    LSM_PTHREAD_STATIC_MUTEX
+  };
+
+  assert( iMutex==LSM_MUTEX_GLOBAL || iMutex==LSM_MUTEX_HEAP );
+  assert( LSM_MUTEX_GLOBAL==1 && LSM_MUTEX_HEAP==2 );
+
+  *ppStatic = (lsm_mutex *)&sMutex[iMutex-1];
+  return LSM_OK;
+}
+
+static int lsmPosixOsMutexNew(lsm_env *pEnv, lsm_mutex **ppNew){
+  PthreadMutex *pMutex;           /* Pointer to new mutex */
+  pthread_mutexattr_t attr;       /* Attributes object */
+
+  pMutex = (PthreadMutex *)lsmMallocZero(pEnv, sizeof(PthreadMutex));
+  if( !pMutex ) return LSM_NOMEM_BKPT;
+
+  pMutex->pEnv = pEnv;
+  pthread_mutexattr_init(&attr);
+  pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
+  pthread_mutex_init(&pMutex->mutex, &attr);
+  pthread_mutexattr_destroy(&attr);
+
+  *ppNew = (lsm_mutex *)pMutex;
+  return LSM_OK;
+}
+
+static void lsmPosixOsMutexDel(lsm_mutex *p){
+  PthreadMutex *pMutex = (PthreadMutex *)p;
+  pthread_mutex_destroy(&pMutex->mutex);
+  lsmFree(pMutex->pEnv, pMutex);
+}
+
+static void lsmPosixOsMutexEnter(lsm_mutex *p){
+  PthreadMutex *pMutex = (PthreadMutex *)p;
+  pthread_mutex_lock(&pMutex->mutex);
+
+#ifdef LSM_DEBUG
+  assert( !pthread_equal(pMutex->owner, pthread_self()) );
+  pMutex->owner = pthread_self();
+  assert( pthread_equal(pMutex->owner, pthread_self()) );
+#endif
+}
+
+static int lsmPosixOsMutexTry(lsm_mutex *p){
+  int ret;
+  PthreadMutex *pMutex = (PthreadMutex *)p;
+  ret = pthread_mutex_trylock(&pMutex->mutex);
+#ifdef LSM_DEBUG
+  if( ret==0 ){
+    assert( !pthread_equal(pMutex->owner, pthread_self()) );
+    pMutex->owner = pthread_self();
+    assert( pthread_equal(pMutex->owner, pthread_self()) );
+  }
+#endif
+  return ret;
+}
+
+static void lsmPosixOsMutexLeave(lsm_mutex *p){
+  PthreadMutex *pMutex = (PthreadMutex *)p;
+#ifdef LSM_DEBUG
+  assert( pthread_equal(pMutex->owner, pthread_self()) );
+  pMutex->owner = 0;
+  assert( !pthread_equal(pMutex->owner, pthread_self()) );
+#endif
+  pthread_mutex_unlock(&pMutex->mutex);
+}
+
+#ifdef LSM_DEBUG
+static int lsmPosixOsMutexHeld(lsm_mutex *p){
+  PthreadMutex *pMutex = (PthreadMutex *)p;
+  return pMutex ? pthread_equal(pMutex->owner, pthread_self()) : 1;
+}
+static int lsmPosixOsMutexNotHeld(lsm_mutex *p){
+  PthreadMutex *pMutex = (PthreadMutex *)p;
+  return pMutex ? !pthread_equal(pMutex->owner, pthread_self()) : 1;
+}
+#endif
+/*
+** End of pthreads mutex implementation.
+*************************************************************************/
+#else
+/*************************************************************************
+** Noop mutex implementation
+*/
+typedef struct NoopMutex NoopMutex;
+struct NoopMutex {
+  lsm_env *pEnv;                  /* Environment handle (for xFree()) */
+  int bHeld;                      /* True if mutex is held */
+  int bStatic;                    /* True for a static mutex */
+};
+static NoopMutex aStaticNoopMutex[2] = {
+  {0, 0, 1},
+  {0, 0, 1},
+};
+
+static int lsmPosixOsMutexStatic(
+  lsm_env *pEnv,
+  int iMutex,
+  lsm_mutex **ppStatic
+){
+  assert( iMutex>=1 && iMutex<=(int)array_size(aStaticNoopMutex) );
+  *ppStatic = (lsm_mutex *)&aStaticNoopMutex[iMutex-1];
+  return LSM_OK;
+}
+static int lsmPosixOsMutexNew(lsm_env *pEnv, lsm_mutex **ppNew){
+  NoopMutex *p;
+  p = (NoopMutex *)lsmMallocZero(pEnv, sizeof(NoopMutex));
+  if( p ) p->pEnv = pEnv;
+  *ppNew = (lsm_mutex *)p;
+  return (p ? LSM_OK : LSM_NOMEM_BKPT);
+}
+static void lsmPosixOsMutexDel(lsm_mutex *pMutex)  { 
+  NoopMutex *p = (NoopMutex *)pMutex;
+  assert( p->bStatic==0 && p->pEnv );
+  lsmFree(p->pEnv, p);
+}
+static void lsmPosixOsMutexEnter(lsm_mutex *pMutex){ 
+  NoopMutex *p = (NoopMutex *)pMutex;
+  assert( p->bHeld==0 );
+  p->bHeld = 1;
+}
+static int lsmPosixOsMutexTry(lsm_mutex *pMutex){
+  NoopMutex *p = (NoopMutex *)pMutex;
+  assert( p->bHeld==0 );
+  p->bHeld = 1;
+  return 0;
+}
+static void lsmPosixOsMutexLeave(lsm_mutex *pMutex){ 
+  NoopMutex *p = (NoopMutex *)pMutex;
+  assert( p->bHeld==1 );
+  p->bHeld = 0;
+}
+#ifdef LSM_DEBUG
+static int lsmPosixOsMutexHeld(lsm_mutex *pMutex){ 
+  NoopMutex *p = (NoopMutex *)pMutex;
+  return p ? p->bHeld : 1;
+}
+static int lsmPosixOsMutexNotHeld(lsm_mutex *pMutex){ 
+  NoopMutex *p = (NoopMutex *)pMutex;
+  return p ? !p->bHeld : 1;
+}
+#endif
+/***************************************************************************/
+#endif /* else LSM_MUTEX_NONE */
+
+/* Without LSM_DEBUG, the MutexHeld tests are never called */
+#ifndef LSM_DEBUG
+# define lsmPosixOsMutexHeld    0
+# define lsmPosixOsMutexNotHeld 0
+#endif
+
+lsm_env *lsm_default_env(void){
+  static lsm_env posix_env = {
+    sizeof(lsm_env),         /* nByte */
+    1,                       /* iVersion */
+    /***** file i/o ******************/
+    0,                       /* pVfsCtx */
+    lsmPosixOsFullpath,      /* xFullpath */
+    lsmPosixOsOpen,          /* xOpen */
+    lsmPosixOsRead,          /* xRead */
+    lsmPosixOsWrite,         /* xWrite */
+    lsmPosixOsTruncate,      /* xTruncate */
+    lsmPosixOsSync,          /* xSync */
+    lsmPosixOsSectorSize,    /* xSectorSize */
+    lsmPosixOsRemap,         /* xRemap */
+    lsmPosixOsFileid,        /* xFileid */
+    lsmPosixOsClose,         /* xClose */
+    lsmPosixOsUnlink,        /* xUnlink */
+    lsmPosixOsLock,          /* xLock */
+    lsmPosixOsTestLock,      /* xTestLock */
+    lsmPosixOsShmMap,        /* xShmMap */
+    lsmPosixOsShmBarrier,    /* xShmBarrier */
+    lsmPosixOsShmUnmap,      /* xShmUnmap */
+    /***** memory allocation *********/
+    0,                       /* pMemCtx */
+    lsmPosixOsMalloc,        /* xMalloc */
+    lsmPosixOsRealloc,       /* xRealloc */
+    lsmPosixOsFree,          /* xFree */
+    lsmPosixOsMSize,         /* xSize */
+    /***** mutexes *********************/
+    0,                       /* pMutexCtx */
+    lsmPosixOsMutexStatic,   /* xMutexStatic */
+    lsmPosixOsMutexNew,      /* xMutexNew */
+    lsmPosixOsMutexDel,      /* xMutexDel */
+    lsmPosixOsMutexEnter,    /* xMutexEnter */
+    lsmPosixOsMutexTry,      /* xMutexTry */
+    lsmPosixOsMutexLeave,    /* xMutexLeave */
+    lsmPosixOsMutexHeld,     /* xMutexHeld */
+    lsmPosixOsMutexNotHeld,  /* xMutexNotHeld */
+    /***** other *********************/
+    lsmPosixOsSleep,         /* xSleep */
+  };
+  return &posix_env;
+}
+
+#endif
diff --git a/ext/lsm1/lsm_varint.c b/ext/lsm1/lsm_varint.c
new file mode 100644
index 0000000000000000000000000000000000000000..f690e3b0630fa05023c84d318af62286c8ee5c19
--- /dev/null
+++ b/ext/lsm1/lsm_varint.c
@@ -0,0 +1,201 @@
+
+/*
+** 2012-02-08
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** SQLite4-compatible varint implementation.
+*/
+#include "lsmInt.h"
+
+/*************************************************************************
+** The following is a copy of the varint.c module from SQLite 4.
+*/
+
+/*
+** Decode the varint in z[].  Write the integer value into *pResult and
+** return the number of bytes in the varint.
+*/
+static int lsmSqlite4GetVarint64(const unsigned char *z, u64 *pResult){
+  unsigned int x;
+  if( z[0]<=240 ){
+    *pResult = z[0];
+    return 1;
+  }
+  if( z[0]<=248 ){
+    *pResult = (z[0]-241)*256 + z[1] + 240;
+    return 2;
+  }
+  if( z[0]==249 ){
+    *pResult = 2288 + 256*z[1] + z[2];
+    return 3;
+  }
+  if( z[0]==250 ){
+    *pResult = (z[1]<<16) + (z[2]<<8) + z[3];
+    return 4;
+  }
+  x = (z[1]<<24) + (z[2]<<16) + (z[3]<<8) + z[4];
+  if( z[0]==251 ){
+    *pResult = x;
+    return 5;
+  }
+  if( z[0]==252 ){
+    *pResult = (((u64)x)<<8) + z[5];
+    return 6;
+  }
+  if( z[0]==253 ){
+    *pResult = (((u64)x)<<16) + (z[5]<<8) + z[6];
+    return 7;
+  }
+  if( z[0]==254 ){
+    *pResult = (((u64)x)<<24) + (z[5]<<16) + (z[6]<<8) + z[7];
+    return 8;
+  }
+  *pResult = (((u64)x)<<32) +
+               (0xffffffff & ((z[5]<<24) + (z[6]<<16) + (z[7]<<8) + z[8]));
+  return 9;
+}
+
+/*
+** Write a 32-bit unsigned integer as 4 big-endian bytes.
+*/
+static void lsmVarintWrite32(unsigned char *z, unsigned int y){
+  z[0] = (unsigned char)(y>>24);
+  z[1] = (unsigned char)(y>>16);
+  z[2] = (unsigned char)(y>>8);
+  z[3] = (unsigned char)(y);
+}
+
+/*
+** Write a varint into z[].  The buffer z[] must be at least 9 characters
+** long to accommodate the largest possible varint.  Return the number of
+** bytes of z[] used.
+*/
+static int lsmSqlite4PutVarint64(unsigned char *z, u64 x){
+  unsigned int w, y;
+  if( x<=240 ){
+    z[0] = (unsigned char)x;
+    return 1;
+  }
+  if( x<=2287 ){
+    y = (unsigned int)(x - 240);
+    z[0] = (unsigned char)(y/256 + 241);
+    z[1] = (unsigned char)(y%256);
+    return 2;
+  }
+  if( x<=67823 ){
+    y = (unsigned int)(x - 2288);
+    z[0] = 249;
+    z[1] = (unsigned char)(y/256);
+    z[2] = (unsigned char)(y%256);
+    return 3;
+  }
+  y = (unsigned int)x;
+  w = (unsigned int)(x>>32);
+  if( w==0 ){
+    if( y<=16777215 ){
+      z[0] = 250;
+      z[1] = (unsigned char)(y>>16);
+      z[2] = (unsigned char)(y>>8);
+      z[3] = (unsigned char)(y);
+      return 4;
+    }
+    z[0] = 251;
+    lsmVarintWrite32(z+1, y);
+    return 5;
+  }
+  if( w<=255 ){
+    z[0] = 252;
+    z[1] = (unsigned char)w;
+    lsmVarintWrite32(z+2, y);
+    return 6;
+  }
+  if( w<=32767 ){
+    z[0] = 253;
+    z[1] = (unsigned char)(w>>8);
+    z[2] = (unsigned char)w;
+    lsmVarintWrite32(z+3, y);
+    return 7;
+  }
+  if( w<=16777215 ){
+    z[0] = 254;
+    z[1] = (unsigned char)(w>>16);
+    z[2] = (unsigned char)(w>>8);
+    z[3] = (unsigned char)w;
+    lsmVarintWrite32(z+4, y);
+    return 8;
+  }
+  z[0] = 255;
+  lsmVarintWrite32(z+1, w);
+  lsmVarintWrite32(z+5, y);
+  return 9;
+}
+
+/*
+** End of SQLite 4 code.
+*************************************************************************/
+
+int lsmVarintPut64(u8 *aData, i64 iVal){
+  return lsmSqlite4PutVarint64(aData, (u64)iVal);
+}
+
+int lsmVarintGet64(const u8 *aData, i64 *piVal){
+  return lsmSqlite4GetVarint64(aData, (u64 *)piVal);
+}
+
+int lsmVarintPut32(u8 *aData, int iVal){
+  return lsmSqlite4PutVarint64(aData, (u64)iVal);
+}
+
+int lsmVarintGet32(u8 *z, int *piVal){
+  u64 i;
+  int ret;
+
+  if( z[0]<=240 ){
+    *piVal = z[0];
+    return 1;
+  }
+  if( z[0]<=248 ){
+    *piVal = (z[0]-241)*256 + z[1] + 240;
+    return 2;
+  }
+  if( z[0]==249 ){
+    *piVal = 2288 + 256*z[1] + z[2];
+    return 3;
+  }
+  if( z[0]==250 ){
+    *piVal = (z[1]<<16) + (z[2]<<8) + z[3];
+    return 4;
+  }
+
+  ret = lsmSqlite4GetVarint64(z, &i);
+  *piVal = (int)i;
+  return ret;
+}
+
+int lsmVarintLen32(int n){
+  u8 aData[9];
+  return lsmVarintPut32(aData, n);
+}
+
+int lsmVarintLen64(i64 n){
+  u8 aData[9];
+  return lsmVarintPut64(aData, n);
+}
+
+/*
+** The argument is the first byte of a varint. This function returns the
+** total number of bytes in the entire varint (including the first byte).
+*/
+int lsmVarintSize(u8 c){
+  if( c<241 ) return 1;
+  if( c<249 ) return 2;
+  return (int)(c - 246);
+}
diff --git a/ext/lsm1/lsm_vtab.c b/ext/lsm1/lsm_vtab.c
new file mode 100644
index 0000000000000000000000000000000000000000..8c21923e1a7a77e8759abfb6b54e6bd569d95540
--- /dev/null
+++ b/ext/lsm1/lsm_vtab.c
@@ -0,0 +1,1084 @@
+/*
+** 2015-11-16
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** This file implements a virtual table for SQLite3 around the LSM
+** storage engine from SQLite4.
+**
+** USAGE
+**
+**   CREATE VIRTUAL TABLE demo USING lsm1(filename,key,keytype,value1,...);
+**
+** The filename parameter is the name of the LSM database file, which is
+** separate and distinct from the SQLite3 database file.
+**
+** The keytype must be one of: UINT, TEXT, BLOB.  All keys must be of that
+** one type.  "UINT" means unsigned integer.  The values may be of any
+** SQLite datatype: BLOB, TEXT, INTEGER, FLOAT, or NULL.
+**
+** The virtual table contains read-only hidden columns:
+**
+**     lsm1_key       A BLOB which is the raw LSM key.  If the "keytype"
+**                    is BLOB or TEXT then this column is exactly the
+**                    same as the key.  For the UINT keytype, this column
+**                    will be a variable-length integer encoding of the key.
+**
+**     lsm1_value     A BLOB which is the raw LSM value.  All of the value
+**                    columns are packed into this BLOB using the encoding
+**                    described below.
+**
+** Attempts to write values into the lsm1_key and lsm1_value columns are
+** silently ignored.
+**
+** EXAMPLE
+**
+** The virtual table declared this way:
+**
+**    CREATE VIRTUAL TABLE demo2 USING lsm1('x.lsm',id,UINT,a,b,c,d);
+**
+** Results in a new virtual table named "demo2" that acts as if it has
+** the following schema:
+**
+**    CREATE TABLE demo2(
+**      id UINT PRIMARY KEY ON CONFLICT REPLACE,
+**      a ANY,
+**      b ANY,
+**      c ANY,
+**      d ANY,
+**      lsm1_key BLOB HIDDEN,
+**      lsm1_value BLOB HIDDEN
+**    ) WITHOUT ROWID;
+**
+** 
+**
+** INTERNALS
+**
+** The key encoding for BLOB and TEXT is just a copy of the blob or text.
+** UTF-8 is used for text.  The key encoding for UINT is the variable-length
+** integer format at https://sqlite.org/src4/doc/trunk/www/varint.wiki.
+**
+** The values are encoded as a single blob (since that is what lsm stores as
+** its content).  There is a "type integer" followed by "content" for each
+** value, alternating back and forth.  The content might be empty.
+**
+**    TYPE1  CONTENT1  TYPE2  CONTENT2  TYPE3  CONTENT3 ....
+**
+** Each "type integer" is encoded as a variable-length integer in the
+** format of the link above.  Let the type integer be T.  The actual
+** datatype is an integer 0-5 equal to T%6.  Values 1 through 5 correspond
+** to SQLITE_INTEGER through SQLITE_NULL.  The size of the content in bytes
+** is T/6.  Type value 0 means that the value is an integer whose actual
+** values is T/6 and there is no content.  The type-value-0 integer format
+** only works for integers in the range of 0 through 40.
+**
+** There is no content for NULL or type-0 integers.  For BLOB and TEXT
+** values, the content is the blob data or the UTF-8 text data.  For
+** non-negative integers X, the content is a variable-length integer X*2.
+** For negative integers Y, the content is varaible-length integer (1-Y)*2+1.
+** For FLOAT values, the content is the IEEE754 floating point value in
+** native byte-order.  This means that FLOAT values will be corrupted when
+** database file is moved between big-endian and little-endian machines.
+*/
+#include "sqlite3ext.h"
+SQLITE_EXTENSION_INIT1
+#include "lsm.h"
+#include <assert.h>
+#include <string.h>
+
+/* Forward declaration of subclasses of virtual table objects */
+typedef struct lsm1_vtab lsm1_vtab;
+typedef struct lsm1_cursor lsm1_cursor;
+typedef struct lsm1_vblob lsm1_vblob;
+
+/* Primitive types */
+typedef unsigned char u8;
+typedef unsigned int u32;
+typedef sqlite3_uint64 u64;
+
+/* An open connection to an LSM table */
+struct lsm1_vtab {
+  sqlite3_vtab base;          /* Base class - must be first */
+  lsm_db *pDb;                /* Open connection to the LSM table */
+  u8 keyType;                 /* SQLITE_BLOB, _TEXT, or _INTEGER */
+  u32 nVal;                   /* Number of value columns */
+};
+
+
+/* lsm1_cursor is a subclass of sqlite3_vtab_cursor which will
+** serve as the underlying representation of a cursor that scans
+** over rows of the result
+*/
+struct lsm1_cursor {
+  sqlite3_vtab_cursor base;  /* Base class - must be first */
+  lsm_cursor *pLsmCur;       /* The LSM cursor */
+  u8 isDesc;                 /* 0: scan forward.  1: scan reverse */
+  u8 atEof;                  /* True if the scan is complete */
+  u8 bUnique;                /* True if no more than one row of output */
+  u8 *zData;                 /* Content of the current row */
+  u32 nData;                 /* Number of bytes in the current row */
+  u8 *aeType;                /* Types for all column values */
+  u32 *aiOfst;               /* Offsets to the various fields */
+  u32 *aiLen;                /* Length of each field */
+  u8 *pKey2;                 /* Loop termination key, or NULL */
+  u32 nKey2;                 /* Length of the loop termination key */
+};
+
+/* An extensible buffer object.
+**
+** Content can be appended.  Space to hold new content is automatically
+** allocated.
+*/
+struct lsm1_vblob {
+  u8 *a;             /* Space to hold content, from sqlite3_malloc64() */
+  u64 n;             /* Bytes of space used */
+  u64 nAlloc;        /* Bytes of space allocated */
+  u8 errNoMem;       /* True if a memory allocation error has been seen */
+};
+
+#if defined(__GNUC__)
+#  define LSM1_NOINLINE  __attribute__((noinline))
+#elif defined(_MSC_VER) && _MSC_VER>=1310
+#  define LSM1_NOINLINE  __declspec(noinline)
+#else
+#  define LSM1_NOINLINE
+#endif
+
+
+/* Increase the available space in the vblob object so that it can hold
+** at least N more bytes.  Return the number of errors.
+*/
+static int lsm1VblobEnlarge(lsm1_vblob *p, u32 N){
+  if( p->n+N>p->nAlloc ){
+    if( p->errNoMem ) return 1;
+    p->nAlloc += N + (p->nAlloc ? p->nAlloc : N);
+    p->a = sqlite3_realloc64(p->a, p->nAlloc);
+    if( p->a==0 ){
+      p->n = 0;
+      p->nAlloc = 0;
+      p->errNoMem = 1;
+      return 1;
+    }
+    p->nAlloc = sqlite3_msize(p->a);
+  }
+  return 0;
+}
+
+/* Append N bytes to a vblob after first enlarging it */
+static LSM1_NOINLINE void lsm1VblobEnlargeAndAppend(
+  lsm1_vblob *p,
+  const u8 *pData,
+  u32 N
+){
+  if( p->n+N>p->nAlloc && lsm1VblobEnlarge(p, N) ) return;
+  memcpy(p->a+p->n, pData, N);
+  p->n += N;
+}
+
+/* Append N bytes to a vblob */
+static void lsm1VblobAppend(lsm1_vblob *p, const u8 *pData, u32 N){
+  sqlite3_int64 n = p->n;
+  if( n+N>p->nAlloc ){
+    lsm1VblobEnlargeAndAppend(p, pData, N);
+  }else{
+    p->n += N;
+    memcpy(p->a+n, pData, N);
+  }
+}
+
+/* append text to a vblob */
+static void lsm1VblobAppendText(lsm1_vblob *p, const char *z){
+  lsm1VblobAppend(p, (u8*)z, (u32)strlen(z));
+}
+
+/* Dequote the string */
+static void lsm1Dequote(char *z){
+  int j;
+  char cQuote = z[0];
+  size_t i, n;
+
+  if( cQuote!='\'' && cQuote!='"' ) return;
+  n = strlen(z);
+  if( n<2 || z[n-1]!=z[0] ) return;
+  for(i=1, j=0; i<n-1; i++){
+    if( z[i]==cQuote && z[i+1]==cQuote ) i++;
+    z[j++] = z[i];
+  }
+  z[j] = 0;
+}
+
+
+/*
+** The lsm1Connect() method is invoked to create a new
+** lsm1_vtab that describes the virtual table.
+*/
+static int lsm1Connect(
+  sqlite3 *db,
+  void *pAux,
+  int argc, const char *const*argv,
+  sqlite3_vtab **ppVtab,
+  char **pzErr
+){
+  lsm1_vtab *pNew;
+  int rc;
+  char *zFilename;
+  u8 keyType = 0;
+  int i;
+  lsm1_vblob sql;
+  static const char *azTypes[] = { "UINT",         "TEXT",     "BLOB" };
+  static const u8 aeTypes[] =    { SQLITE_INTEGER, SQLITE_TEXT, SQLITE_BLOB };
+  static const char *azArgName[] = {"filename", "key", "key type", "value1" };
+
+  for(i=0; i<sizeof(azArgName)/sizeof(azArgName[0]); i++){
+    if( argc<i+4 || argv[i+3]==0 || argv[i+3][0]==0 ){
+      *pzErr = sqlite3_mprintf("%s (%r) argument missing",
+                               azArgName[i], i+1);
+      return SQLITE_ERROR;
+    }
+  }
+  for(i=0; i<sizeof(azTypes)/sizeof(azTypes[0]); i++){
+    if( sqlite3_stricmp(azTypes[i],argv[5])==0 ){
+      keyType = aeTypes[i];
+      break;
+    }
+  }
+  if( keyType==0 ){
+    *pzErr = sqlite3_mprintf("key type should be INT, TEXT, or BLOB");
+    return SQLITE_ERROR;
+  }
+  *ppVtab = sqlite3_malloc( sizeof(*pNew) );
+  pNew = (lsm1_vtab*)*ppVtab;
+  if( pNew==0 ){
+    return SQLITE_NOMEM;
+  }
+  memset(pNew, 0, sizeof(*pNew));
+  pNew->keyType = keyType;
+  rc = lsm_new(0, &pNew->pDb);
+  if( rc ){
+    *pzErr = sqlite3_mprintf("lsm_new failed with error code %d",  rc);
+    rc = SQLITE_ERROR;
+    goto connect_failed;
+  }
+  zFilename = sqlite3_mprintf("%s", argv[3]);
+  lsm1Dequote(zFilename);
+  rc = lsm_open(pNew->pDb, zFilename);
+  sqlite3_free(zFilename);
+  if( rc ){
+    *pzErr = sqlite3_mprintf("lsm_open failed with %d", rc);
+    rc = SQLITE_ERROR;
+    goto connect_failed;
+  }
+
+  memset(&sql, 0, sizeof(sql));
+  lsm1VblobAppendText(&sql, "CREATE TABLE x(");
+  lsm1VblobAppendText(&sql, argv[4]);
+  lsm1VblobAppendText(&sql, " ");
+  lsm1VblobAppendText(&sql, argv[5]);
+  lsm1VblobAppendText(&sql, " PRIMARY KEY");
+  for(i=6; i<argc; i++){
+    lsm1VblobAppendText(&sql, ", ");
+    lsm1VblobAppendText(&sql, argv[i]);
+    pNew->nVal++;
+  }
+  lsm1VblobAppendText(&sql, 
+      ", lsm1_command HIDDEN"
+      ", lsm1_key HIDDEN"
+      ", lsm1_value HIDDEN) WITHOUT ROWID");
+  lsm1VblobAppend(&sql, (u8*)"", 1);
+  if( sql.errNoMem ){
+    rc = SQLITE_NOMEM;
+    goto connect_failed;
+  }
+  rc = sqlite3_declare_vtab(db, (const char*)sql.a);
+  sqlite3_free(sql.a);
+
+connect_failed:
+  if( rc!=SQLITE_OK ){
+    if( pNew ){
+      if( pNew->pDb ) lsm_close(pNew->pDb);
+      sqlite3_free(pNew);
+    }
+    *ppVtab = 0;
+  }
+  return rc;
+}
+
+/*
+** This method is the destructor for lsm1_cursor objects.
+*/
+static int lsm1Disconnect(sqlite3_vtab *pVtab){
+  lsm1_vtab *p = (lsm1_vtab*)pVtab;
+  lsm_close(p->pDb);
+  sqlite3_free(p);
+  return SQLITE_OK;
+}
+
+/*
+** Constructor for a new lsm1_cursor object.
+*/
+static int lsm1Open(sqlite3_vtab *pVtab, sqlite3_vtab_cursor **ppCursor){
+  lsm1_vtab *p = (lsm1_vtab*)pVtab;
+  lsm1_cursor *pCur;
+  int rc;
+  pCur = sqlite3_malloc64( sizeof(*pCur)
+                 + p->nVal*(sizeof(pCur->aiOfst)+sizeof(pCur->aiLen)+1) );
+  if( pCur==0 ) return SQLITE_NOMEM;
+  memset(pCur, 0, sizeof(*pCur));
+  pCur->aiOfst = (u32*)&pCur[1];
+  pCur->aiLen = &pCur->aiOfst[p->nVal];
+  pCur->aeType = (u8*)&pCur->aiLen[p->nVal];
+  *ppCursor = &pCur->base;
+  rc = lsm_csr_open(p->pDb, &pCur->pLsmCur);
+  if( rc==LSM_OK ){
+    rc = SQLITE_OK;
+  }else{
+    sqlite3_free(pCur);
+    *ppCursor = 0;
+    rc = SQLITE_ERROR;
+  }
+  return rc;
+}
+
+/*
+** Destructor for a lsm1_cursor.
+*/
+static int lsm1Close(sqlite3_vtab_cursor *cur){
+  lsm1_cursor *pCur = (lsm1_cursor*)cur;
+  sqlite3_free(pCur->pKey2);
+  lsm_csr_close(pCur->pLsmCur);
+  sqlite3_free(pCur);
+  return SQLITE_OK;
+}
+
+
+/*
+** Advance a lsm1_cursor to its next row of output.
+*/
+static int lsm1Next(sqlite3_vtab_cursor *cur){
+  lsm1_cursor *pCur = (lsm1_cursor*)cur;
+  int rc = LSM_OK;
+  if( pCur->bUnique ){
+    pCur->atEof = 1;
+  }else{
+    if( pCur->isDesc ){
+      rc = lsm_csr_prev(pCur->pLsmCur);
+    }else{
+      rc = lsm_csr_next(pCur->pLsmCur);
+    }
+    if( rc==LSM_OK && lsm_csr_valid(pCur->pLsmCur)==0 ){
+      pCur->atEof = 1;
+    }
+    if( pCur->pKey2 && pCur->atEof==0 ){
+      const u8 *pVal;
+      u32 nVal;
+      assert( pCur->isDesc==0 );
+      rc = lsm_csr_key(pCur->pLsmCur, (const void**)&pVal, (int*)&nVal);
+      if( rc==LSM_OK ){
+        u32 len = pCur->nKey2;
+        int c;
+        if( len>nVal ) len = nVal;
+        c = memcmp(pVal, pCur->pKey2, len);
+        if( c==0 ) c = nVal - pCur->nKey2;
+        if( c>0 ) pCur->atEof = 1;
+      }
+    }
+    pCur->zData = 0;
+  }
+  return rc==LSM_OK ? SQLITE_OK : SQLITE_ERROR;
+}
+
+/*
+** Return TRUE if the cursor has been moved off of the last
+** row of output.
+*/
+static int lsm1Eof(sqlite3_vtab_cursor *cur){
+  lsm1_cursor *pCur = (lsm1_cursor*)cur;
+  return pCur->atEof;
+}
+
+/*
+** Rowids are not supported by the underlying virtual table.  So always
+** return 0 for the rowid.
+*/
+static int lsm1Rowid(sqlite3_vtab_cursor *cur, sqlite_int64 *pRowid){
+  *pRowid = 0;
+  return SQLITE_OK;
+}
+
+/*
+** Type prefixes on LSM keys
+*/
+#define LSM1_TYPE_NEGATIVE   0
+#define LSM1_TYPE_POSITIVE   1
+#define LSM1_TYPE_TEXT       2
+#define LSM1_TYPE_BLOB       3
+
+/*
+** Write a 32-bit unsigned integer as 4 big-endian bytes.
+*/
+static void varintWrite32(unsigned char *z, unsigned int y){
+  z[0] = (unsigned char)(y>>24);
+  z[1] = (unsigned char)(y>>16);
+  z[2] = (unsigned char)(y>>8);
+  z[3] = (unsigned char)(y);
+}
+
+/*
+** Write a varint into z[].  The buffer z[] must be at least 9 characters
+** long to accommodate the largest possible varint.  Return the number of
+** bytes of z[] used.
+*/
+static int lsm1PutVarint64(unsigned char *z, sqlite3_uint64 x){
+  unsigned int w, y;
+  if( x<=240 ){
+    z[0] = (unsigned char)x;
+    return 1;
+  }
+  if( x<=2287 ){
+    y = (unsigned int)(x - 240);
+    z[0] = (unsigned char)(y/256 + 241);
+    z[1] = (unsigned char)(y%256);
+    return 2;
+  }
+  if( x<=67823 ){
+    y = (unsigned int)(x - 2288);
+    z[0] = 249;
+    z[1] = (unsigned char)(y/256);
+    z[2] = (unsigned char)(y%256);
+    return 3;
+  }
+  y = (unsigned int)x;
+  w = (unsigned int)(x>>32);
+  if( w==0 ){
+    if( y<=16777215 ){
+      z[0] = 250;
+      z[1] = (unsigned char)(y>>16);
+      z[2] = (unsigned char)(y>>8);
+      z[3] = (unsigned char)(y);
+      return 4;
+    }
+    z[0] = 251;
+    varintWrite32(z+1, y);
+    return 5;
+  }
+  if( w<=255 ){
+    z[0] = 252;
+    z[1] = (unsigned char)w;
+    varintWrite32(z+2, y);
+    return 6;
+  }
+  if( w<=65535 ){
+    z[0] = 253;
+    z[1] = (unsigned char)(w>>8);
+    z[2] = (unsigned char)w;
+    varintWrite32(z+3, y);
+    return 7;
+  }
+  if( w<=16777215 ){
+    z[0] = 254;
+    z[1] = (unsigned char)(w>>16);
+    z[2] = (unsigned char)(w>>8);
+    z[3] = (unsigned char)w;
+    varintWrite32(z+4, y);
+    return 8;
+  }
+  z[0] = 255;
+  varintWrite32(z+1, w);
+  varintWrite32(z+5, y);
+  return 9;
+}
+
+/* Append non-negative integer x as a variable-length integer.
+*/
+static void lsm1VblobAppendVarint(lsm1_vblob *p, sqlite3_uint64 x){
+  sqlite3_int64 n = p->n;
+  if( n+9>p->nAlloc && lsm1VblobEnlarge(p, 9) ) return;
+  p->n += lsm1PutVarint64(p->a+p->n, x);
+}
+
+/*
+** Decode the varint in the first n bytes z[].  Write the integer value
+** into *pResult and return the number of bytes in the varint.
+**
+** If the decode fails because there are not enough bytes in z[] then
+** return 0;
+*/
+static int lsm1GetVarint64(
+  const unsigned char *z,
+  int n,
+  sqlite3_uint64 *pResult
+){
+  unsigned int x;
+  if( n<1 ) return 0;
+  if( z[0]<=240 ){
+    *pResult = z[0];
+    return 1;
+  }
+  if( z[0]<=248 ){
+    if( n<2 ) return 0;
+    *pResult = (z[0]-241)*256 + z[1] + 240;
+    return 2;
+  }
+  if( n<z[0]-246 ) return 0;
+  if( z[0]==249 ){
+    *pResult = 2288 + 256*z[1] + z[2];
+    return 3;
+  }
+  if( z[0]==250 ){
+    *pResult = (z[1]<<16) + (z[2]<<8) + z[3];
+    return 4;
+  }
+  x = (z[1]<<24) + (z[2]<<16) + (z[3]<<8) + z[4];
+  if( z[0]==251 ){
+    *pResult = x;
+    return 5;
+  }
+  if( z[0]==252 ){
+    *pResult = (((sqlite3_uint64)x)<<8) + z[5];
+    return 6;
+  }
+  if( z[0]==253 ){
+    *pResult = (((sqlite3_uint64)x)<<16) + (z[5]<<8) + z[6];
+    return 7;
+  }
+  if( z[0]==254 ){
+    *pResult = (((sqlite3_uint64)x)<<24) + (z[5]<<16) + (z[6]<<8) + z[7];
+    return 8;
+  }
+  *pResult = (((sqlite3_uint64)x)<<32) +
+               (0xffffffff & ((z[5]<<24) + (z[6]<<16) + (z[7]<<8) + z[8]));
+  return 9;
+}
+
+/* Encoded a signed integer as a varint.  Numbers close to zero uses fewer
+** bytes than numbers far away from zero.  However, the result is not in
+** lexicographical order.
+**
+** Encoding:  Non-negative integer X is encoding as an unsigned
+** varint X*2.  Negative integer Y is encoding as an unsigned
+** varint (1-Y)*2 + 1.
+*/
+static int lsm1PutSignedVarint64(u8 *z, sqlite3_int64 v){
+  sqlite3_uint64 u;
+  if( v>=0 ){
+    u = (sqlite3_uint64)v;
+    return lsm1PutVarint64(z, u*2);
+  }else{
+    u = (sqlite3_uint64)(-1-v);
+    return lsm1PutVarint64(z, u*2+1);
+  }
+}
+
+/* Decoded a signed varint. */
+static int lsm1GetSignedVarint64(
+  const unsigned char *z,
+  int n,
+  sqlite3_int64 *pResult
+){
+  sqlite3_uint64 u = 0;
+  n = lsm1GetVarint64(z, n, &u);
+  if( u&1 ){
+    *pResult = -1 - (sqlite3_int64)(u>>1);
+  }else{
+    *pResult = (sqlite3_int64)(u>>1);
+  }
+  return n;
+}
+
+
+/*
+** Read the value part of the key-value pair and decode it into columns.
+*/
+static int lsm1DecodeValues(lsm1_cursor *pCur){
+  lsm1_vtab *pTab = (lsm1_vtab*)(pCur->base.pVtab);
+  int i, n;
+  int rc;
+  u8 eType;
+  sqlite3_uint64 v;
+
+  if( pCur->zData ) return 1;
+  rc = lsm_csr_value(pCur->pLsmCur, (const void**)&pCur->zData,
+                     (int*)&pCur->nData);
+  if( rc ) return 0;
+  for(i=n=0; i<pTab->nVal; i++){
+    v = 0;
+    n += lsm1GetVarint64(pCur->zData+n, pCur->nData-n, &v);
+    pCur->aeType[i] = eType = (u8)(v%6);
+    if( eType==0 ){
+      pCur->aiOfst[i] = (u32)(v/6);
+      pCur->aiLen[i] = 0;
+    }else{ 
+      pCur->aiOfst[i] = n;
+      n += (pCur->aiLen[i] = (u32)(v/6));
+    }
+    if( n>pCur->nData ) break;
+  }
+  if( i<pTab->nVal ){
+    pCur->zData = 0;
+    return 0;
+  }
+  return 1;
+}
+
+/*
+** Return values of columns for the row at which the lsm1_cursor
+** is currently pointing.
+*/
+static int lsm1Column(
+  sqlite3_vtab_cursor *cur,   /* The cursor */
+  sqlite3_context *ctx,       /* First argument to sqlite3_result_...() */
+  int i                       /* Which column to return */
+){
+  lsm1_cursor *pCur = (lsm1_cursor*)cur;
+  lsm1_vtab *pTab = (lsm1_vtab*)(cur->pVtab);
+  if( i==0 ){
+    /* The key column */
+    const void *pVal;
+    int nVal;
+    if( lsm_csr_key(pCur->pLsmCur, &pVal, &nVal)==LSM_OK ){
+      if( pTab->keyType==SQLITE_BLOB ){
+        sqlite3_result_blob(ctx, pVal, nVal, SQLITE_TRANSIENT);
+      }else if( pTab->keyType==SQLITE_TEXT ){
+        sqlite3_result_text(ctx,(const char*)pVal, nVal, SQLITE_TRANSIENT);
+      }else{
+        const unsigned char *z = (const unsigned char*)pVal;
+        sqlite3_uint64 v1;
+        lsm1GetVarint64(z, nVal, &v1);
+        sqlite3_result_int64(ctx, (sqlite3_int64)v1);
+      }
+    }
+  }else if( i>pTab->nVal ){
+    if( i==pTab->nVal+2 ){  /* lsm1_key */
+      const void *pVal;
+      int nVal;
+      if( lsm_csr_key(pCur->pLsmCur, &pVal, &nVal)==LSM_OK ){
+        sqlite3_result_blob(ctx, pVal, nVal, SQLITE_TRANSIENT);
+      }
+    }else if( i==pTab->nVal+3 ){  /* lsm1_value */
+      const void *pVal;
+      int nVal;
+      if( lsm_csr_value(pCur->pLsmCur, &pVal, &nVal)==LSM_OK ){
+        sqlite3_result_blob(ctx, pVal, nVal, SQLITE_TRANSIENT);
+      }
+    }
+  }else if( lsm1DecodeValues(pCur) ){
+    /* The i-th value column (where leftmost is 1) */
+    const u8 *zData;
+    u32 nData;
+    i--;
+    zData = pCur->zData + pCur->aiOfst[i];
+    nData = pCur->aiLen[i];
+    switch( pCur->aeType[i] ){
+      case 0: {  /* in-line integer */
+        sqlite3_result_int(ctx, pCur->aiOfst[i]);
+        break;
+      }
+      case SQLITE_INTEGER: {
+        sqlite3_int64 v;
+        lsm1GetSignedVarint64(zData, nData, &v);
+        sqlite3_result_int64(ctx, v);
+        break;
+      }
+      case SQLITE_FLOAT: {
+        double v;
+        if( nData==sizeof(v) ){
+          memcpy(&v, zData, sizeof(v));
+          sqlite3_result_double(ctx, v);
+        }
+        break;
+      }
+      case SQLITE_TEXT: {
+        sqlite3_result_text(ctx, (const char*)zData, nData, SQLITE_TRANSIENT);
+        break;
+      }
+      case SQLITE_BLOB: {
+        sqlite3_result_blob(ctx, zData, nData, SQLITE_TRANSIENT);
+        break;
+      }
+      default: {
+         /* A NULL.  Do nothing */
+      }
+    }
+  }
+  return SQLITE_OK;
+}
+
+/* Parameter "pValue" contains an SQL value that is to be used as
+** a key in an LSM table.  The type of the key is determined by
+** "keyType".  Extract the raw bytes used for the key in LSM1.
+*/
+static void lsm1KeyFromValue(
+  int keyType,                 /* The key type */
+  sqlite3_value *pValue,       /* The key value */
+  u8 *pBuf,                    /* Storage space for a generated key */
+  const u8 **ppKey,            /* OUT: the bytes of the key */
+  int *pnKey                   /* OUT: size of the key */
+){
+  if( keyType==SQLITE_BLOB ){
+    *ppKey = (const u8*)sqlite3_value_blob(pValue);
+    *pnKey = sqlite3_value_bytes(pValue);
+  }else if( keyType==SQLITE_TEXT ){
+    *ppKey = (const u8*)sqlite3_value_text(pValue);
+    *pnKey = sqlite3_value_bytes(pValue);
+  }else{
+    sqlite3_int64 v = sqlite3_value_int64(pValue);
+    if( v<0 ) v = 0;
+    *pnKey = lsm1PutVarint64(pBuf, v);
+    *ppKey = pBuf;
+  }
+}
+
+/* Move to the first row to return.
+*/
+static int lsm1Filter(
+  sqlite3_vtab_cursor *pVtabCursor, 
+  int idxNum, const char *idxStr,
+  int argc, sqlite3_value **argv
+){
+  lsm1_cursor *pCur = (lsm1_cursor *)pVtabCursor;
+  lsm1_vtab *pTab = (lsm1_vtab*)(pCur->base.pVtab);
+  int rc = LSM_OK;
+  int seekType = -1;
+  const u8 *pVal = 0;
+  int nVal;
+  u8 keyType = pTab->keyType;
+  u8 aKey1[16];
+
+  pCur->atEof = 1;
+  sqlite3_free(pCur->pKey2);
+  pCur->pKey2 = 0;
+  if( idxNum<99 ){
+    lsm1KeyFromValue(keyType, argv[0], aKey1, &pVal, &nVal);
+  }
+  switch( idxNum ){
+    case 0: {   /* key==argv[0] */
+      assert( argc==1 );
+      seekType = LSM_SEEK_EQ;
+      pCur->isDesc = 0;
+      pCur->bUnique = 1;
+      break;
+    }
+    case 1: {  /* key>=argv[0] AND key<=argv[1] */
+      u8 aKey[12];
+      seekType = LSM_SEEK_GE;
+      pCur->isDesc = 0;
+      pCur->bUnique = 0;
+      if( keyType==SQLITE_INTEGER ){
+        sqlite3_int64 v = sqlite3_value_int64(argv[1]);
+        if( v<0 ) v = 0;
+        pCur->nKey2 = lsm1PutVarint64(aKey, (sqlite3_uint64)v);
+        pCur->pKey2 = sqlite3_malloc( pCur->nKey2 );
+        if( pCur->pKey2==0 ) return SQLITE_NOMEM;
+        memcpy(pCur->pKey2, aKey, pCur->nKey2);
+      }else{
+        pCur->nKey2 = sqlite3_value_bytes(argv[1]);
+        pCur->pKey2 = sqlite3_malloc( pCur->nKey2 );
+        if( pCur->pKey2==0 ) return SQLITE_NOMEM;
+        if( keyType==SQLITE_BLOB ){
+          memcpy(pCur->pKey2, sqlite3_value_blob(argv[1]), pCur->nKey2);
+        }else{
+          memcpy(pCur->pKey2, sqlite3_value_text(argv[1]), pCur->nKey2);
+        }
+      }
+      break;
+    }
+    case 2: {  /* key>=argv[0] */
+      seekType = LSM_SEEK_GE;
+      pCur->isDesc = 0;
+      pCur->bUnique = 0;
+      break;
+    }
+    case 3: {  /* key<=argv[0] */
+      seekType = LSM_SEEK_LE;
+      pCur->isDesc = 1;
+      pCur->bUnique = 0;
+      break;
+    }
+    default: { /* full table scan */
+      pCur->isDesc = 0;
+      pCur->bUnique = 0;
+      break;
+    }
+  }
+  if( pVal ){
+    rc = lsm_csr_seek(pCur->pLsmCur, pVal, nVal, seekType);
+  }else{
+    rc = lsm_csr_first(pCur->pLsmCur);
+  }
+  if( rc==LSM_OK && lsm_csr_valid(pCur->pLsmCur)!=0 ){
+    pCur->atEof = 0;
+  }
+  return rc==LSM_OK ? SQLITE_OK : SQLITE_ERROR;
+}
+
+/*
+** Only comparisons against the key are allowed.  The idxNum defines
+** which comparisons are available:
+**
+**     0        key==?1
+**     1        key>=?1 AND key<=?2
+**     2        key>?1 or key>=?1
+**     3        key<?1 or key<=?1
+**    99        Full table scan only
+*/
+static int lsm1BestIndex(
+  sqlite3_vtab *tab,
+  sqlite3_index_info *pIdxInfo
+){
+  int i;                 /* Loop over constraints */
+  int idxNum = 99;       /* The query plan */
+  int nArg = 0;          /* Number of arguments to xFilter */
+  int argIdx = -1;       /* Index of the key== constraint, or -1 if none */
+  int iIdx2 = -1;        /* The index of the second key */
+  int omit1 = 0;
+  int omit2 = 0;
+
+  const struct sqlite3_index_constraint *pConstraint;
+  pConstraint = pIdxInfo->aConstraint;
+  for(i=0; i<pIdxInfo->nConstraint; i++, pConstraint++){
+    if( pConstraint->usable==0 ) continue;
+    if( pConstraint->iColumn!=0 ) continue;
+    switch( pConstraint->op ){
+      case SQLITE_INDEX_CONSTRAINT_EQ: {
+        if( idxNum>0 ){
+          argIdx = i;
+          iIdx2 = -1;
+          idxNum = 0;
+          omit1 = 1;
+        }
+        break;
+      }
+      case SQLITE_INDEX_CONSTRAINT_GE:
+      case SQLITE_INDEX_CONSTRAINT_GT: {
+        if( idxNum==99 ){
+          argIdx = i;
+          idxNum = 2;
+          omit1 = pConstraint->op==SQLITE_INDEX_CONSTRAINT_GE;
+        }else if( idxNum==3 ){
+          iIdx2 = idxNum;
+          omit2 = omit1;
+          argIdx = i;
+          idxNum = 1;
+          omit1 = pConstraint->op==SQLITE_INDEX_CONSTRAINT_GE;
+        }
+        break;
+      }
+      case SQLITE_INDEX_CONSTRAINT_LE:
+      case SQLITE_INDEX_CONSTRAINT_LT: {
+        if( idxNum==99 ){
+          argIdx = i;
+          idxNum = 3;
+          omit1 = pConstraint->op==SQLITE_INDEX_CONSTRAINT_LE;
+        }else if( idxNum==2 ){
+          iIdx2 = i;
+          idxNum = 1;
+          omit1 = pConstraint->op==SQLITE_INDEX_CONSTRAINT_LE;
+        }
+        break;
+      }
+    }
+  }
+  if( argIdx>=0 ){
+    pIdxInfo->aConstraintUsage[argIdx].argvIndex = ++nArg;
+    pIdxInfo->aConstraintUsage[argIdx].omit = omit1;
+  }
+  if( iIdx2>=0 ){
+    pIdxInfo->aConstraintUsage[iIdx2].argvIndex = ++nArg;
+    pIdxInfo->aConstraintUsage[iIdx2].omit = omit2;
+  }
+  if( idxNum==0 ){
+    pIdxInfo->estimatedCost = (double)1;
+    pIdxInfo->estimatedRows = 1;
+    pIdxInfo->orderByConsumed = 1;
+  }else if( idxNum==1 ){
+    pIdxInfo->estimatedCost = (double)100;
+    pIdxInfo->estimatedRows = 100;
+  }else if( idxNum<99 ){
+    pIdxInfo->estimatedCost = (double)5000;
+    pIdxInfo->estimatedRows = 5000;
+  }else{
+    /* Full table scan */
+    pIdxInfo->estimatedCost = (double)2147483647;
+    pIdxInfo->estimatedRows = 2147483647;
+  }
+  pIdxInfo->idxNum = idxNum;
+  return SQLITE_OK;
+}
+
+/*
+** The xUpdate method is normally used for INSERT, REPLACE, UPDATE, and
+** DELETE.  But this virtual table only supports INSERT and REPLACE.
+** DELETE is accomplished by inserting a record with a value of NULL.
+** UPDATE is achieved by using REPLACE.
+*/
+int lsm1Update(
+  sqlite3_vtab *pVTab,
+  int argc,
+  sqlite3_value **argv,
+  sqlite_int64 *pRowid
+){
+  lsm1_vtab *p = (lsm1_vtab*)pVTab;
+  int nKey, nKey2;
+  int i;
+  int rc = LSM_OK;
+  const u8 *pKey, *pKey2;
+  unsigned char aKey[16];
+  unsigned char pSpace[16];
+  lsm1_vblob val;
+
+  if( argc==1 ){
+    /* DELETE the record whose key is argv[0] */
+    lsm1KeyFromValue(p->keyType, argv[0], aKey, &pKey, &nKey);
+    lsm_delete(p->pDb, pKey, nKey);
+    return SQLITE_OK;
+  }
+
+  if( sqlite3_value_type(argv[0])!=SQLITE_NULL ){
+    /* An UPDATE */
+    lsm1KeyFromValue(p->keyType, argv[0], aKey, &pKey, &nKey);
+    lsm1KeyFromValue(p->keyType, argv[1], pSpace, &pKey2, &nKey2);
+    if( nKey!=nKey2 || memcmp(pKey, pKey2, nKey)!=0 ){
+      /* The UPDATE changes the PRIMARY KEY value.  DELETE the old key */
+      lsm_delete(p->pDb, pKey, nKey);
+    }
+    /* Fall through into the INSERT case to complete the UPDATE */
+  }
+
+  /* "INSERT INTO tab(lsm1_command) VALUES('....')" is used to implement
+  ** special commands.
+  */
+  if( sqlite3_value_type(argv[3+p->nVal])!=SQLITE_NULL ){
+    return SQLITE_OK;
+  }
+  lsm1KeyFromValue(p->keyType, argv[2], aKey, &pKey, &nKey);
+  memset(&val, 0, sizeof(val));
+  for(i=0; i<p->nVal; i++){
+    sqlite3_value *pArg = argv[3+i];
+    u8 eType = sqlite3_value_type(pArg);
+    switch( eType ){
+      case SQLITE_NULL: {
+        lsm1VblobAppendVarint(&val, SQLITE_NULL);
+        break;
+      }
+      case SQLITE_INTEGER: {
+        sqlite3_int64 v = sqlite3_value_int64(pArg);
+        if( v>=0 && v<=240/6 ){
+          lsm1VblobAppendVarint(&val, v*6);
+        }else{
+          int n = lsm1PutSignedVarint64(pSpace, v);
+          lsm1VblobAppendVarint(&val, SQLITE_INTEGER + n*6);
+          lsm1VblobAppend(&val, pSpace, n);
+        }
+        break;
+      }
+      case SQLITE_FLOAT: {
+        double r = sqlite3_value_double(pArg);
+        lsm1VblobAppendVarint(&val, SQLITE_FLOAT + 8*6);
+        lsm1VblobAppend(&val, (u8*)&r, sizeof(r));
+        break;
+      }
+      case SQLITE_BLOB: {
+        int n = sqlite3_value_bytes(pArg);
+        lsm1VblobAppendVarint(&val, n*6 + SQLITE_BLOB);
+        lsm1VblobAppend(&val, sqlite3_value_blob(pArg), n);
+        break;
+      }
+      case SQLITE_TEXT: {
+        int n = sqlite3_value_bytes(pArg);
+        lsm1VblobAppendVarint(&val, n*6 + SQLITE_TEXT);
+        lsm1VblobAppend(&val, sqlite3_value_text(pArg), n);
+        break;
+      }
+    }
+  }
+  if( val.errNoMem ){
+    return SQLITE_NOMEM;
+  }
+  rc = lsm_insert(p->pDb, pKey, nKey, val.a, val.n);
+  sqlite3_free(val.a);
+  return rc==LSM_OK ? SQLITE_OK : SQLITE_ERROR;
+}      
+
+/* Begin a transaction
+*/
+static int lsm1Begin(sqlite3_vtab *pVtab){
+  lsm1_vtab *p = (lsm1_vtab*)pVtab;
+  int rc = lsm_begin(p->pDb, 1);
+  return rc==LSM_OK ? SQLITE_OK : SQLITE_ERROR;
+}
+
+/* Phase 1 of a transaction commit.
+*/
+static int lsm1Sync(sqlite3_vtab *pVtab){
+  return SQLITE_OK;
+}
+
+/* Commit a transaction
+*/
+static int lsm1Commit(sqlite3_vtab *pVtab){
+  lsm1_vtab *p = (lsm1_vtab*)pVtab;
+  int rc = lsm_commit(p->pDb, 0);
+  return rc==LSM_OK ? SQLITE_OK : SQLITE_ERROR;
+}
+
+/* Rollback a transaction
+*/
+static int lsm1Rollback(sqlite3_vtab *pVtab){
+  lsm1_vtab *p = (lsm1_vtab*)pVtab;
+  int rc = lsm_rollback(p->pDb, 0);
+  return rc==LSM_OK ? SQLITE_OK : SQLITE_ERROR;
+}
+
+/*
+** This following structure defines all the methods for the 
+** generate_lsm1 virtual table.
+*/
+static sqlite3_module lsm1Module = {
+  0,                       /* iVersion */
+  lsm1Connect,             /* xCreate */
+  lsm1Connect,             /* xConnect */
+  lsm1BestIndex,           /* xBestIndex */
+  lsm1Disconnect,          /* xDisconnect */
+  lsm1Disconnect,          /* xDestroy */
+  lsm1Open,                /* xOpen - open a cursor */
+  lsm1Close,               /* xClose - close a cursor */
+  lsm1Filter,              /* xFilter - configure scan constraints */
+  lsm1Next,                /* xNext - advance a cursor */
+  lsm1Eof,                 /* xEof - check for end of scan */
+  lsm1Column,              /* xColumn - read data */
+  lsm1Rowid,               /* xRowid - read data */
+  lsm1Update,              /* xUpdate */
+  lsm1Begin,               /* xBegin */
+  lsm1Sync,                /* xSync */
+  lsm1Commit,              /* xCommit */
+  lsm1Rollback,            /* xRollback */
+  0,                       /* xFindMethod */
+  0,                       /* xRename */
+  0,                       /* xSavepoint */
+  0,                       /* xRelease */
+  0,                       /* xRollbackTo */
+  0,                       /* xShadowName */
+  0                        /* xIntegrity */
+};
+
+
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_lsm_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  int rc = SQLITE_OK;
+  SQLITE_EXTENSION_INIT2(pApi);
+  rc = sqlite3_create_module(db, "lsm1", &lsm1Module, 0);
+  return rc;
+}
diff --git a/ext/lsm1/lsm_win32.c b/ext/lsm1/lsm_win32.c
new file mode 100644
index 0000000000000000000000000000000000000000..6c5d06b4c8e1db924b592fb480cb9da533bc5a6b
--- /dev/null
+++ b/ext/lsm1/lsm_win32.c
@@ -0,0 +1,1063 @@
+/*
+** 2011-12-03
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** Win32-specific run-time environment implementation for LSM.
+*/
+
+#ifdef _WIN32
+
+#include <assert.h>
+#include <string.h>
+
+#include <stdlib.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <ctype.h>
+
+#include "windows.h"
+
+#include "lsmInt.h"
+
+/*
+** An open file is an instance of the following object
+*/
+typedef struct Win32File Win32File;
+struct Win32File {
+  lsm_env *pEnv;                  /* The run-time environment */
+  const char *zName;              /* Full path to file */
+
+  HANDLE hFile;                   /* Open file handle */
+  HANDLE hShmFile;                /* File handle for *-shm file */
+
+  SYSTEM_INFO sysInfo;            /* Operating system information */
+  HANDLE hMap;                    /* File handle for mapping */
+  LPVOID pMap;                    /* Pointer to mapping of file fd */
+  size_t nMap;                    /* Size of mapping at pMap in bytes */
+  int nShm;                       /* Number of entries in ahShm[]/apShm[] */
+  LPHANDLE ahShm;                 /* Array of handles for shared mappings */
+  LPVOID *apShm;                  /* Array of 32K shared memory segments */
+};
+
+static char *win32ShmFile(Win32File *pWin32File){
+  char *zShm;
+  int nName = strlen(pWin32File->zName);
+  zShm = (char *)lsmMallocZero(pWin32File->pEnv, nName+4+1);
+  if( zShm ){
+    memcpy(zShm, pWin32File->zName, nName);
+    memcpy(&zShm[nName], "-shm", 5);
+  }
+  return zShm;
+}
+
+static int win32Sleep(int us){
+  Sleep((us + 999) / 1000);
+  return LSM_OK;
+}
+
+/*
+** The number of times that an I/O operation will be retried following a
+** locking error - probably caused by antivirus software.  Also the initial
+** delay before the first retry.  The delay increases linearly with each
+** retry.
+*/
+#ifndef LSM_WIN32_IOERR_RETRY
+# define LSM_WIN32_IOERR_RETRY 10
+#endif
+#ifndef LSM_WIN32_IOERR_RETRY_DELAY
+# define LSM_WIN32_IOERR_RETRY_DELAY 25000
+#endif
+static int win32IoerrRetry = LSM_WIN32_IOERR_RETRY;
+static int win32IoerrRetryDelay = LSM_WIN32_IOERR_RETRY_DELAY;
+
+/*
+** The "win32IoerrCanRetry1" macro is used to determine if a particular
+** I/O error code obtained via GetLastError() is eligible to be retried.
+** It must accept the error code DWORD as its only argument and should
+** return non-zero if the error code is transient in nature and the
+** operation responsible for generating the original error might succeed
+** upon being retried.  The argument to this macro should be a variable.
+**
+** Additionally, a macro named "win32IoerrCanRetry2" may be defined.  If
+** it is defined, it will be consulted only when the macro
+** "win32IoerrCanRetry1" returns zero.  The "win32IoerrCanRetry2" macro
+** is completely optional and may be used to include additional error
+** codes in the set that should result in the failing I/O operation being
+** retried by the caller.  If defined, the "win32IoerrCanRetry2" macro
+** must exhibit external semantics identical to those of the
+** "win32IoerrCanRetry1" macro.
+*/
+#if !defined(win32IoerrCanRetry1)
+#define win32IoerrCanRetry1(a) (((a)==ERROR_ACCESS_DENIED)        || \
+                                ((a)==ERROR_SHARING_VIOLATION)    || \
+                                ((a)==ERROR_LOCK_VIOLATION)       || \
+                                ((a)==ERROR_DEV_NOT_EXIST)        || \
+                                ((a)==ERROR_NETNAME_DELETED)      || \
+                                ((a)==ERROR_SEM_TIMEOUT)          || \
+                                ((a)==ERROR_NETWORK_UNREACHABLE))
+#endif
+
+/*
+** If an I/O error occurs, invoke this routine to see if it should be
+** retried.  Return TRUE to retry.  Return FALSE to give up with an
+** error.
+*/
+static int win32RetryIoerr(
+  lsm_env *pEnv,
+  int *pnRetry
+){
+  DWORD lastErrno;
+  if( *pnRetry>=win32IoerrRetry ){
+    return 0;
+  }
+  lastErrno = GetLastError();
+  if( win32IoerrCanRetry1(lastErrno) ){
+    win32Sleep(win32IoerrRetryDelay*(1+*pnRetry));
+    ++*pnRetry;
+    return 1;
+  }
+#if defined(win32IoerrCanRetry2)
+  else if( win32IoerrCanRetry2(lastErrno) ){
+    win32Sleep(win32IoerrRetryDelay*(1+*pnRetry));
+    ++*pnRetry;
+    return 1;
+  }
+#endif
+  return 0;
+}
+
+/*
+** Convert a UTF-8 string to Microsoft Unicode.
+**
+** Space to hold the returned string is obtained from lsmMalloc().
+*/
+static LPWSTR win32Utf8ToUnicode(lsm_env *pEnv, const char *zText){
+  int nChar;
+  LPWSTR zWideText;
+
+  nChar = MultiByteToWideChar(CP_UTF8, 0, zText, -1, NULL, 0);
+  if( nChar==0 ){
+    return 0;
+  }
+  zWideText = lsmMallocZero(pEnv, nChar * sizeof(WCHAR));
+  if( zWideText==0 ){
+    return 0;
+  }
+  nChar = MultiByteToWideChar(CP_UTF8, 0, zText, -1, zWideText, nChar);
+  if( nChar==0 ){
+    lsmFree(pEnv, zWideText);
+    zWideText = 0;
+  }
+  return zWideText;
+}
+
+/*
+** Convert a Microsoft Unicode string to UTF-8.
+**
+** Space to hold the returned string is obtained from lsmMalloc().
+*/
+static char *win32UnicodeToUtf8(lsm_env *pEnv, LPCWSTR zWideText){
+  int nByte;
+  char *zText;
+
+  nByte = WideCharToMultiByte(CP_UTF8, 0, zWideText, -1, 0, 0, 0, 0);
+  if( nByte == 0 ){
+    return 0;
+  }
+  zText = lsmMallocZero(pEnv, nByte);
+  if( zText==0 ){
+    return 0;
+  }
+  nByte = WideCharToMultiByte(CP_UTF8, 0, zWideText, -1, zText, nByte, 0, 0);
+  if( nByte == 0 ){
+    lsmFree(pEnv, zText);
+    zText = 0;
+  }
+  return zText;
+}
+
+#if !defined(win32IsNotFound)
+#define win32IsNotFound(a) (((a)==ERROR_FILE_NOT_FOUND)  || \
+                            ((a)==ERROR_PATH_NOT_FOUND))
+#endif
+
+static int win32Open(
+  lsm_env *pEnv,
+  const char *zFile,
+  int flags,
+  LPHANDLE phFile
+){
+  int rc;
+  LPWSTR zConverted;
+
+  zConverted = win32Utf8ToUnicode(pEnv, zFile);
+  if( zConverted==0 ){
+    rc = LSM_NOMEM_BKPT;
+  }else{
+    int bReadonly = (flags & LSM_OPEN_READONLY);
+    DWORD dwDesiredAccess;
+    DWORD dwShareMode = FILE_SHARE_READ | FILE_SHARE_WRITE;
+    DWORD dwCreationDisposition;
+    DWORD dwFlagsAndAttributes = FILE_ATTRIBUTE_NORMAL;
+    HANDLE hFile;
+    int nRetry = 0;
+    if( bReadonly ){
+      dwDesiredAccess = GENERIC_READ;
+      dwCreationDisposition = OPEN_EXISTING;
+    }else{
+      dwDesiredAccess = GENERIC_READ | GENERIC_WRITE;
+      dwCreationDisposition = OPEN_ALWAYS;
+    }
+    while( (hFile = CreateFileW((LPCWSTR)zConverted,
+                                dwDesiredAccess,
+                                dwShareMode, NULL,
+                                dwCreationDisposition,
+                                dwFlagsAndAttributes,
+                                NULL))==INVALID_HANDLE_VALUE &&
+                                win32RetryIoerr(pEnv, &nRetry) ){
+      /* Noop */
+    }
+    lsmFree(pEnv, zConverted);
+    if( hFile!=INVALID_HANDLE_VALUE ){
+      *phFile = hFile;
+      rc = LSM_OK;
+    }else{
+      if( win32IsNotFound(GetLastError()) ){
+        rc = lsmErrorBkpt(LSM_IOERR_NOENT);
+      }else{
+        rc = LSM_IOERR_BKPT;
+      }
+    }
+  }
+  return rc;
+}
+
+static int lsmWin32OsOpen(
+  lsm_env *pEnv,
+  const char *zFile,
+  int flags,
+  lsm_file **ppFile
+){
+  int rc = LSM_OK;
+  Win32File *pWin32File;
+
+  pWin32File = lsmMallocZero(pEnv, sizeof(Win32File));
+  if( pWin32File==0 ){
+    rc = LSM_NOMEM_BKPT;
+  }else{
+    HANDLE hFile = NULL;
+
+    rc = win32Open(pEnv, zFile, flags, &hFile);
+    if( rc==LSM_OK ){
+      memset(&pWin32File->sysInfo, 0, sizeof(SYSTEM_INFO));
+      GetSystemInfo(&pWin32File->sysInfo);
+      pWin32File->pEnv = pEnv;
+      pWin32File->zName = zFile;
+      pWin32File->hFile = hFile;
+    }else{
+      lsmFree(pEnv, pWin32File);
+      pWin32File = 0;
+    }
+  }
+  *ppFile = (lsm_file *)pWin32File;
+  return rc;
+}
+
+static int lsmWin32OsWrite(
+  lsm_file *pFile, /* File to write to */
+  lsm_i64 iOff,    /* Offset to write to */
+  void *pData,     /* Write data from this buffer */
+  int nData        /* Bytes of data to write */
+){
+  Win32File *pWin32File = (Win32File *)pFile;
+  OVERLAPPED overlapped;  /* The offset for WriteFile. */
+  u8 *aRem = (u8 *)pData; /* Data yet to be written */
+  int nRem = nData;       /* Number of bytes yet to be written */
+  int nRetry = 0;         /* Number of retrys */
+
+  memset(&overlapped, 0, sizeof(OVERLAPPED));
+  overlapped.Offset = (LONG)(iOff & 0XFFFFFFFF);
+  overlapped.OffsetHigh = (LONG)((iOff>>32) & 0x7FFFFFFF);
+  while( nRem>0 ){
+    DWORD nWrite = 0; /* Bytes written using WriteFile */
+    if( !WriteFile(pWin32File->hFile, aRem, nRem, &nWrite, &overlapped) ){
+      if( win32RetryIoerr(pWin32File->pEnv, &nRetry) ) continue;
+      break;
+    }
+    assert( nWrite==0 || nWrite<=(DWORD)nRem );
+    if( nWrite==0 || nWrite>(DWORD)nRem ){
+      break;
+    }
+    iOff += nWrite;
+    overlapped.Offset = (LONG)(iOff & 0xFFFFFFFF);
+    overlapped.OffsetHigh = (LONG)((iOff>>32) & 0x7FFFFFFF);
+    aRem += nWrite;
+    nRem -= nWrite;
+  }
+  if( nRem!=0 ) return LSM_IOERR_BKPT;
+  return LSM_OK;
+}
+
+static int win32Truncate(
+  HANDLE hFile,
+  lsm_i64 nSize
+){
+  LARGE_INTEGER offset;
+  offset.QuadPart = nSize;
+  if( !SetFilePointerEx(hFile, offset, 0, FILE_BEGIN) ){
+    return LSM_IOERR_BKPT;
+  }
+  if (!SetEndOfFile(hFile) ){
+    return LSM_IOERR_BKPT;
+  }
+  return LSM_OK;
+}
+
+static int lsmWin32OsTruncate(
+  lsm_file *pFile, /* File to write to */
+  lsm_i64 nSize    /* Size to truncate file to */
+){
+  Win32File *pWin32File = (Win32File *)pFile;
+  return win32Truncate(pWin32File->hFile, nSize);
+}
+
+static int lsmWin32OsRead(
+  lsm_file *pFile, /* File to read from */
+  lsm_i64 iOff,    /* Offset to read from */
+  void *pData,     /* Read data into this buffer */
+  int nData        /* Bytes of data to read */
+){
+  Win32File *pWin32File = (Win32File *)pFile;
+  OVERLAPPED overlapped; /* The offset for ReadFile */
+  DWORD nRead = 0;       /* Bytes read using ReadFile */
+  int nRetry = 0;        /* Number of retrys */
+
+  memset(&overlapped, 0, sizeof(OVERLAPPED));
+  overlapped.Offset = (LONG)(iOff & 0XFFFFFFFF);
+  overlapped.OffsetHigh = (LONG)((iOff>>32) & 0X7FFFFFFF);
+  while( !ReadFile(pWin32File->hFile, pData, nData, &nRead, &overlapped) &&
+         GetLastError()!=ERROR_HANDLE_EOF ){
+    if( win32RetryIoerr(pWin32File->pEnv, &nRetry) ) continue;
+    return LSM_IOERR_BKPT;
+  }
+  if( nRead<(DWORD)nData ){
+    /* Unread parts of the buffer must be zero-filled */
+    memset(&((char*)pData)[nRead], 0, nData - nRead);
+  }
+  return LSM_OK;
+}
+
+static int lsmWin32OsSync(lsm_file *pFile){
+  int rc = LSM_OK;
+
+#ifndef LSM_NO_SYNC
+  Win32File *pWin32File = (Win32File *)pFile;
+
+  if( pWin32File->pMap!=NULL ){
+    if( !FlushViewOfFile(pWin32File->pMap, 0) ){
+      rc = LSM_IOERR_BKPT;
+    }
+  }
+  if( rc==LSM_OK && !FlushFileBuffers(pWin32File->hFile) ){
+    rc = LSM_IOERR_BKPT;
+  }
+#else
+  unused_parameter(pFile);
+#endif
+
+  return rc;
+}
+
+static int lsmWin32OsSectorSize(lsm_file *pFile){
+  return 512;
+}
+
+static void win32Unmap(Win32File *pWin32File){
+  if( pWin32File->pMap!=NULL ){
+    UnmapViewOfFile(pWin32File->pMap);
+    pWin32File->pMap = NULL;
+    pWin32File->nMap = 0;
+  }
+  if( pWin32File->hMap!=NULL ){
+    CloseHandle(pWin32File->hMap);
+    pWin32File->hMap = NULL;
+  }
+}
+
+static int lsmWin32OsRemap(
+  lsm_file *pFile,
+  lsm_i64 iMin,
+  void **ppOut,
+  lsm_i64 *pnOut
+){
+  Win32File *pWin32File = (Win32File *)pFile;
+
+  /* If the file is between 0 and 2MB in size, extend it in chunks of 256K.
+  ** Thereafter, in chunks of 1MB at a time.  */
+  const int aIncrSz[] = {256*1024, 1024*1024};
+  int nIncrSz = aIncrSz[iMin>(2*1024*1024)];
+
+  *ppOut = NULL;
+  *pnOut = 0;
+
+  win32Unmap(pWin32File);
+  if( iMin>=0 ){
+    LARGE_INTEGER fileSize;
+    DWORD dwSizeHigh;
+    DWORD dwSizeLow;
+    HANDLE hMap;
+    LPVOID pMap;
+    memset(&fileSize, 0, sizeof(LARGE_INTEGER));
+    if( !GetFileSizeEx(pWin32File->hFile, &fileSize) ){
+      return LSM_IOERR_BKPT;
+    }
+    assert( fileSize.QuadPart>=0 );
+    if( fileSize.QuadPart<iMin ){
+      int rc;
+      fileSize.QuadPart = ((iMin + nIncrSz-1) / nIncrSz) * nIncrSz;
+      rc = lsmWin32OsTruncate(pFile, fileSize.QuadPart);
+      if( rc!=LSM_OK ){
+        return rc;
+      }
+    }
+    dwSizeLow = (DWORD)(fileSize.QuadPart & 0xFFFFFFFF);
+    dwSizeHigh = (DWORD)((fileSize.QuadPart & 0x7FFFFFFFFFFFFFFF) >> 32);
+    hMap = CreateFileMappingW(pWin32File->hFile, NULL, PAGE_READWRITE,
+                              dwSizeHigh, dwSizeLow, NULL);
+    if( hMap==NULL ){
+      return LSM_IOERR_BKPT;
+    }
+    pWin32File->hMap = hMap;
+    assert( fileSize.QuadPart<=0xFFFFFFFF );
+    pMap = MapViewOfFile(hMap, FILE_MAP_WRITE | FILE_MAP_READ, 0, 0,
+                         (SIZE_T)fileSize.QuadPart);
+    if( pMap==NULL ){
+      return LSM_IOERR_BKPT;
+    }
+    pWin32File->pMap = pMap;
+    pWin32File->nMap = (SIZE_T)fileSize.QuadPart;
+  }
+  *ppOut = pWin32File->pMap;
+  *pnOut = pWin32File->nMap;
+  return LSM_OK;
+}
+
+static BOOL win32IsDriveLetterAndColon(
+  const char *zPathname
+){
+  return ( isalpha(zPathname[0]) && zPathname[1]==':' );
+}
+
+static int lsmWin32OsFullpath(
+  lsm_env *pEnv,
+  const char *zName,
+  char *zOut,
+  int *pnOut
+){
+  DWORD nByte;
+  void *zConverted;
+  LPWSTR zTempWide;
+  char *zTempUtf8;
+
+  if( zName[0]=='/' && win32IsDriveLetterAndColon(zName+1) ){
+    zName++;
+  }
+  zConverted = win32Utf8ToUnicode(pEnv, zName);
+  if( zConverted==0 ){
+    return LSM_NOMEM_BKPT;
+  }
+  nByte = GetFullPathNameW((LPCWSTR)zConverted, 0, 0, 0);
+  if( nByte==0 ){
+    lsmFree(pEnv, zConverted);
+    return LSM_IOERR_BKPT;
+  }
+  nByte += 3;
+  zTempWide = lsmMallocZero(pEnv, nByte * sizeof(zTempWide[0]));
+  if( zTempWide==0 ){
+    lsmFree(pEnv, zConverted);
+    return LSM_NOMEM_BKPT;
+  }
+  nByte = GetFullPathNameW((LPCWSTR)zConverted, nByte, zTempWide, 0);
+  if( nByte==0 ){
+    lsmFree(pEnv, zConverted);
+    lsmFree(pEnv, zTempWide);
+    return LSM_IOERR_BKPT;
+  }
+  lsmFree(pEnv, zConverted);
+  zTempUtf8 = win32UnicodeToUtf8(pEnv, zTempWide);
+  lsmFree(pEnv, zTempWide);
+  if( zTempUtf8 ){
+    int nOut = *pnOut;
+    int nLen = strlen(zTempUtf8) + 1;
+    if( nLen<=nOut ){
+      snprintf(zOut, nOut, "%s", zTempUtf8);
+    }
+    lsmFree(pEnv, zTempUtf8);
+    *pnOut = nLen;
+    return LSM_OK;
+  }else{
+    return LSM_NOMEM_BKPT;
+  }
+}
+
+static int lsmWin32OsFileid(
+  lsm_file *pFile,
+  void *pBuf,
+  int *pnBuf
+){
+  int nBuf;
+  int nReq;
+  u8 *pBuf2 = (u8 *)pBuf;
+  Win32File *pWin32File = (Win32File *)pFile;
+  BY_HANDLE_FILE_INFORMATION fileInfo;
+
+  nBuf = *pnBuf;
+  nReq = (sizeof(fileInfo.dwVolumeSerialNumber) +
+          sizeof(fileInfo.nFileIndexHigh) +
+          sizeof(fileInfo.nFileIndexLow));
+  *pnBuf = nReq;
+  if( nReq>nBuf ) return LSM_OK;
+  memset(&fileInfo, 0, sizeof(BY_HANDLE_FILE_INFORMATION));
+  if( !GetFileInformationByHandle(pWin32File->hFile, &fileInfo) ){
+    return LSM_IOERR_BKPT;
+  }
+  nReq = sizeof(fileInfo.dwVolumeSerialNumber);
+  memcpy(pBuf2, &fileInfo.dwVolumeSerialNumber, nReq);
+  pBuf2 += nReq;
+  nReq = sizeof(fileInfo.nFileIndexHigh);
+  memcpy(pBuf, &fileInfo.nFileIndexHigh, nReq);
+  pBuf2 += nReq;
+  nReq = sizeof(fileInfo.nFileIndexLow);
+  memcpy(pBuf2, &fileInfo.nFileIndexLow, nReq);
+  return LSM_OK;
+}
+
+static int win32Delete(
+  lsm_env *pEnv,
+  const char *zFile
+){
+  int rc;
+  LPWSTR zConverted;
+
+  zConverted = win32Utf8ToUnicode(pEnv, zFile);
+  if( zConverted==0 ){
+    rc = LSM_NOMEM_BKPT;
+  }else{
+    int nRetry = 0;
+    DWORD attr;
+
+    do {
+      attr = GetFileAttributesW(zConverted);
+      if ( attr==INVALID_FILE_ATTRIBUTES ){
+        rc = LSM_IOERR_BKPT;
+        break;
+      }
+      if ( attr&FILE_ATTRIBUTE_DIRECTORY ){
+        rc = LSM_IOERR_BKPT; /* Files only. */
+        break;
+      }
+      if ( DeleteFileW(zConverted) ){
+        rc = LSM_OK; /* Deleted OK. */
+        break;
+      }
+      if ( !win32RetryIoerr(pEnv, &nRetry) ){
+        rc = LSM_IOERR_BKPT; /* No more retries. */
+        break;
+      }
+    }while( 1 );
+  }
+  lsmFree(pEnv, zConverted);
+  return rc;
+}
+
+static int lsmWin32OsUnlink(lsm_env *pEnv, const char *zFile){
+  return win32Delete(pEnv, zFile);
+}
+
+#if !defined(win32IsLockBusy)
+#define win32IsLockBusy(a) (((a)==ERROR_LOCK_VIOLATION) || \
+                            ((a)==ERROR_IO_PENDING))
+#endif
+
+static int win32LockFile(
+  Win32File *pWin32File,
+  int iLock,
+  int nLock,
+  int eType
+){
+  OVERLAPPED ovlp;
+
+  assert( LSM_LOCK_UNLOCK==0 );
+  assert( LSM_LOCK_SHARED==1 );
+  assert( LSM_LOCK_EXCL==2 );
+  assert( eType>=LSM_LOCK_UNLOCK && eType<=LSM_LOCK_EXCL );
+  assert( nLock>=0 );
+  assert( iLock>0 && iLock<=32 );
+
+  memset(&ovlp, 0, sizeof(OVERLAPPED));
+  ovlp.Offset = (4096-iLock-nLock+1);
+  if( eType>LSM_LOCK_UNLOCK ){
+    DWORD flags = LOCKFILE_FAIL_IMMEDIATELY;
+    if( eType>=LSM_LOCK_EXCL ) flags |= LOCKFILE_EXCLUSIVE_LOCK;
+    if( !LockFileEx(pWin32File->hFile, flags, 0, (DWORD)nLock, 0, &ovlp) ){
+      if( win32IsLockBusy(GetLastError()) ){
+        return LSM_BUSY;
+      }else{
+        return LSM_IOERR_BKPT;
+      }
+    }
+  }else{
+    if( !UnlockFileEx(pWin32File->hFile, 0, (DWORD)nLock, 0, &ovlp) ){
+      return LSM_IOERR_BKPT;
+    }
+  }
+  return LSM_OK;
+}
+
+static int lsmWin32OsLock(lsm_file *pFile, int iLock, int eType){
+  Win32File *pWin32File = (Win32File *)pFile;
+  return win32LockFile(pWin32File, iLock, 1, eType);
+}
+
+static int lsmWin32OsTestLock(lsm_file *pFile, int iLock, int nLock, int eType){
+  int rc;
+  Win32File *pWin32File = (Win32File *)pFile;
+  rc = win32LockFile(pWin32File, iLock, nLock, eType);
+  if( rc!=LSM_OK ) return rc;
+  win32LockFile(pWin32File, iLock, nLock, LSM_LOCK_UNLOCK);
+  return LSM_OK;
+}
+
+static int lsmWin32OsShmMap(lsm_file *pFile, int iChunk, int sz, void **ppShm){
+  int rc;
+  Win32File *pWin32File = (Win32File *)pFile;
+  int iOffset = iChunk * sz;
+  int iOffsetShift = iOffset % pWin32File->sysInfo.dwAllocationGranularity;
+  int nNew = iChunk + 1;
+  lsm_i64 nReq = nNew * sz;
+
+  *ppShm = NULL;
+  assert( sz>=0 );
+  assert( sz==LSM_SHM_CHUNK_SIZE );
+  if( iChunk>=pWin32File->nShm ){
+    LPHANDLE ahNew;
+    LPVOID *apNew;
+    LARGE_INTEGER fileSize;
+
+    /* If the shared-memory file has not been opened, open it now. */
+    if( pWin32File->hShmFile==NULL ){
+      char *zShm = win32ShmFile(pWin32File);
+      if( !zShm ) return LSM_NOMEM_BKPT;
+      rc = win32Open(pWin32File->pEnv, zShm, 0, &pWin32File->hShmFile);
+      lsmFree(pWin32File->pEnv, zShm);
+      if( rc!=LSM_OK ){
+        return rc;
+      }
+    }
+
+    /* If the shared-memory file is not large enough to contain the
+    ** requested chunk, cause it to grow.  */
+    memset(&fileSize, 0, sizeof(LARGE_INTEGER));
+    if( !GetFileSizeEx(pWin32File->hShmFile, &fileSize) ){
+      return LSM_IOERR_BKPT;
+    }
+    assert( fileSize.QuadPart>=0 );
+    if( fileSize.QuadPart<nReq ){
+      rc = win32Truncate(pWin32File->hShmFile, nReq);
+      if( rc!=LSM_OK ){
+        return rc;
+      }
+    }
+
+    ahNew = (LPHANDLE)lsmMallocZero(pWin32File->pEnv, sizeof(HANDLE) * nNew);
+    if( !ahNew ) return LSM_NOMEM_BKPT;
+    apNew = (LPVOID *)lsmMallocZero(pWin32File->pEnv, sizeof(LPVOID) * nNew);
+    if( !apNew ){
+      lsmFree(pWin32File->pEnv, ahNew);
+      return LSM_NOMEM_BKPT;
+    }
+    memcpy(ahNew, pWin32File->ahShm, sizeof(HANDLE) * pWin32File->nShm);
+    memcpy(apNew, pWin32File->apShm, sizeof(LPVOID) * pWin32File->nShm);
+    lsmFree(pWin32File->pEnv, pWin32File->ahShm);
+    pWin32File->ahShm = ahNew;
+    lsmFree(pWin32File->pEnv, pWin32File->apShm);
+    pWin32File->apShm = apNew;
+    pWin32File->nShm = nNew;
+  }
+
+  if( pWin32File->ahShm[iChunk]==NULL ){
+    HANDLE hMap;
+    assert( nReq<=0xFFFFFFFF );
+    hMap = CreateFileMappingW(pWin32File->hShmFile, NULL, PAGE_READWRITE, 0,
+                              (DWORD)nReq, NULL);
+    if( hMap==NULL ){
+      return LSM_IOERR_BKPT;
+    }
+    pWin32File->ahShm[iChunk] = hMap;
+  }
+  if( pWin32File->apShm[iChunk]==NULL ){
+    LPVOID pMap;
+    pMap = MapViewOfFile(pWin32File->ahShm[iChunk],
+                         FILE_MAP_WRITE | FILE_MAP_READ, 0,
+                         iOffset - iOffsetShift, sz + iOffsetShift);
+    if( pMap==NULL ){
+      return LSM_IOERR_BKPT;
+    }
+    pWin32File->apShm[iChunk] = pMap;
+  }
+  if( iOffsetShift!=0 ){
+    char *p = (char *)pWin32File->apShm[iChunk];
+    *ppShm = (void *)&p[iOffsetShift];
+  }else{
+    *ppShm = pWin32File->apShm[iChunk];
+  }
+  return LSM_OK;
+}
+
+static void lsmWin32OsShmBarrier(void){
+  MemoryBarrier();
+}
+
+static int lsmWin32OsShmUnmap(lsm_file *pFile, int bDelete){
+  Win32File *pWin32File = (Win32File *)pFile;
+
+  if( pWin32File->hShmFile!=NULL ){
+    int i;
+    for(i=0; i<pWin32File->nShm; i++){
+      if( pWin32File->apShm[i]!=NULL ){
+        UnmapViewOfFile(pWin32File->apShm[i]);
+        pWin32File->apShm[i] = NULL;
+      }
+      if( pWin32File->ahShm[i]!=NULL ){
+        CloseHandle(pWin32File->ahShm[i]);
+        pWin32File->ahShm[i] = NULL;
+      }
+    }
+    CloseHandle(pWin32File->hShmFile);
+    pWin32File->hShmFile = NULL;
+    if( bDelete ){
+      char *zShm = win32ShmFile(pWin32File);
+      if( zShm ){ win32Delete(pWin32File->pEnv, zShm); }
+      lsmFree(pWin32File->pEnv, zShm);
+    }
+  }
+  return LSM_OK;
+}
+
+#define MX_CLOSE_ATTEMPT 3
+static int lsmWin32OsClose(lsm_file *pFile){
+  int rc;
+  int nRetry = 0;
+  Win32File *pWin32File = (Win32File *)pFile;
+  lsmWin32OsShmUnmap(pFile, 0);
+  win32Unmap(pWin32File);
+  do{
+    if( pWin32File->hFile==NULL ){
+      rc = LSM_IOERR_BKPT;
+      break;
+    }
+    rc = CloseHandle(pWin32File->hFile);
+    if( rc ){
+      pWin32File->hFile = NULL;
+      rc = LSM_OK;
+      break;
+    }
+    if( ++nRetry>=MX_CLOSE_ATTEMPT ){
+      rc = LSM_IOERR_BKPT;
+      break;
+    }
+  }while( 1 );
+  lsmFree(pWin32File->pEnv, pWin32File->ahShm);
+  lsmFree(pWin32File->pEnv, pWin32File->apShm);
+  lsmFree(pWin32File->pEnv, pWin32File);
+  return rc;
+}
+
+static int lsmWin32OsSleep(lsm_env *pEnv, int us){
+  unused_parameter(pEnv);
+  return win32Sleep(us);
+}
+
+/****************************************************************************
+** Memory allocation routines.
+*/
+
+static void *lsmWin32OsMalloc(lsm_env *pEnv, size_t N){
+  assert( HeapValidate(GetProcessHeap(), 0, NULL) );
+  return HeapAlloc(GetProcessHeap(), 0, (SIZE_T)N);
+}
+
+static void lsmWin32OsFree(lsm_env *pEnv, void *p){
+  assert( HeapValidate(GetProcessHeap(), 0, NULL) );
+  if( p ){
+    HeapFree(GetProcessHeap(), 0, p);
+  }
+}
+
+static void *lsmWin32OsRealloc(lsm_env *pEnv, void *p, size_t N){
+  unsigned char *m = (unsigned char *)p;
+  assert( HeapValidate(GetProcessHeap(), 0, NULL) );
+  if( 1>N ){
+    lsmWin32OsFree(pEnv, p);
+    return NULL;
+  }else if( NULL==p ){
+    return lsmWin32OsMalloc(pEnv, N);
+  }else{
+#if 0 /* arguable: don't shrink */
+    SIZE_T sz = HeapSize(GetProcessHeap(), 0, m);
+    if( sz>=(SIZE_T)N ){
+      return p;
+    }
+#endif
+    return HeapReAlloc(GetProcessHeap(), 0, m, N);
+  }
+}
+
+static size_t lsmWin32OsMSize(lsm_env *pEnv, void *p){
+  assert( HeapValidate(GetProcessHeap(), 0, NULL) );
+  return (size_t)HeapSize(GetProcessHeap(), 0, p);
+}
+
+
+#ifdef LSM_MUTEX_WIN32
+/*************************************************************************
+** Mutex methods for Win32 based systems.  If LSM_MUTEX_WIN32 is
+** missing then a no-op implementation of mutexes found below will be
+** used instead.
+*/
+#include "windows.h"
+
+typedef struct Win32Mutex Win32Mutex;
+struct Win32Mutex {
+  lsm_env *pEnv;
+  CRITICAL_SECTION mutex;
+#ifdef LSM_DEBUG
+  DWORD owner;
+#endif
+};
+
+#ifndef WIN32_MUTEX_INITIALIZER
+# define WIN32_MUTEX_INITIALIZER { 0 }
+#endif
+
+#ifdef LSM_DEBUG
+# define LSM_WIN32_STATIC_MUTEX { 0, WIN32_MUTEX_INITIALIZER, 0 }
+#else
+# define LSM_WIN32_STATIC_MUTEX { 0, WIN32_MUTEX_INITIALIZER }
+#endif
+
+static int lsmWin32OsMutexStatic(
+  lsm_env *pEnv,
+  int iMutex,
+  lsm_mutex **ppStatic
+){
+  static volatile LONG initialized = 0;
+  static Win32Mutex sMutex[2] = {
+    LSM_WIN32_STATIC_MUTEX,
+    LSM_WIN32_STATIC_MUTEX
+  };
+
+  assert( iMutex==LSM_MUTEX_GLOBAL || iMutex==LSM_MUTEX_HEAP );
+  assert( LSM_MUTEX_GLOBAL==1 && LSM_MUTEX_HEAP==2 );
+
+  if( InterlockedCompareExchange(&initialized, 1, 0)==0 ){
+    int i;
+    for(i=0; i<array_size(sMutex); i++){
+      InitializeCriticalSection(&sMutex[i].mutex);
+    }
+  }
+  *ppStatic = (lsm_mutex *)&sMutex[iMutex-1];
+  return LSM_OK;
+}
+
+static int lsmWin32OsMutexNew(lsm_env *pEnv, lsm_mutex **ppNew){
+  Win32Mutex *pMutex;           /* Pointer to new mutex */
+
+  pMutex = (Win32Mutex *)lsmMallocZero(pEnv, sizeof(Win32Mutex));
+  if( !pMutex ) return LSM_NOMEM_BKPT;
+
+  pMutex->pEnv = pEnv;
+  InitializeCriticalSection(&pMutex->mutex);
+
+  *ppNew = (lsm_mutex *)pMutex;
+  return LSM_OK;
+}
+
+static void lsmWin32OsMutexDel(lsm_mutex *p){
+  Win32Mutex *pMutex = (Win32Mutex *)p;
+  DeleteCriticalSection(&pMutex->mutex);
+  lsmFree(pMutex->pEnv, pMutex);
+}
+
+static void lsmWin32OsMutexEnter(lsm_mutex *p){
+  Win32Mutex *pMutex = (Win32Mutex *)p;
+  EnterCriticalSection(&pMutex->mutex);
+
+#ifdef LSM_DEBUG
+  assert( pMutex->owner!=GetCurrentThreadId() );
+  pMutex->owner = GetCurrentThreadId();
+  assert( pMutex->owner==GetCurrentThreadId() );
+#endif
+}
+
+static int lsmWin32OsMutexTry(lsm_mutex *p){
+  BOOL bRet;
+  Win32Mutex *pMutex = (Win32Mutex *)p;
+  bRet = TryEnterCriticalSection(&pMutex->mutex);
+#ifdef LSM_DEBUG
+  if( bRet ){
+    assert( pMutex->owner!=GetCurrentThreadId() );
+    pMutex->owner = GetCurrentThreadId();
+    assert( pMutex->owner==GetCurrentThreadId() );
+  }
+#endif
+  return !bRet;
+}
+
+static void lsmWin32OsMutexLeave(lsm_mutex *p){
+  Win32Mutex *pMutex = (Win32Mutex *)p;
+#ifdef LSM_DEBUG
+  assert( pMutex->owner==GetCurrentThreadId() );
+  pMutex->owner = 0;
+  assert( pMutex->owner!=GetCurrentThreadId() );
+#endif
+  LeaveCriticalSection(&pMutex->mutex);
+}
+
+#ifdef LSM_DEBUG
+static int lsmWin32OsMutexHeld(lsm_mutex *p){
+  Win32Mutex *pMutex = (Win32Mutex *)p;
+  return pMutex ? pMutex->owner==GetCurrentThreadId() : 1;
+}
+static int lsmWin32OsMutexNotHeld(lsm_mutex *p){
+  Win32Mutex *pMutex = (Win32Mutex *)p;
+  return pMutex ? pMutex->owner!=GetCurrentThreadId() : 1;
+}
+#endif
+/*
+** End of Win32 mutex implementation.
+*************************************************************************/
+#else
+/*************************************************************************
+** Noop mutex implementation
+*/
+typedef struct NoopMutex NoopMutex;
+struct NoopMutex {
+  lsm_env *pEnv;                  /* Environment handle (for xFree()) */
+  int bHeld;                      /* True if mutex is held */
+  int bStatic;                    /* True for a static mutex */
+};
+static NoopMutex aStaticNoopMutex[2] = {
+  {0, 0, 1},
+  {0, 0, 1},
+};
+
+static int lsmWin32OsMutexStatic(
+  lsm_env *pEnv,
+  int iMutex,
+  lsm_mutex **ppStatic
+){
+  assert( iMutex>=1 && iMutex<=(int)array_size(aStaticNoopMutex) );
+  *ppStatic = (lsm_mutex *)&aStaticNoopMutex[iMutex-1];
+  return LSM_OK;
+}
+static int lsmWin32OsMutexNew(lsm_env *pEnv, lsm_mutex **ppNew){
+  NoopMutex *p;
+  p = (NoopMutex *)lsmMallocZero(pEnv, sizeof(NoopMutex));
+  if( p ) p->pEnv = pEnv;
+  *ppNew = (lsm_mutex *)p;
+  return (p ? LSM_OK : LSM_NOMEM_BKPT);
+}
+static void lsmWin32OsMutexDel(lsm_mutex *pMutex)  {
+  NoopMutex *p = (NoopMutex *)pMutex;
+  assert( p->bStatic==0 && p->pEnv );
+  lsmFree(p->pEnv, p);
+}
+static void lsmWin32OsMutexEnter(lsm_mutex *pMutex){
+  NoopMutex *p = (NoopMutex *)pMutex;
+  assert( p->bHeld==0 );
+  p->bHeld = 1;
+}
+static int lsmWin32OsMutexTry(lsm_mutex *pMutex){
+  NoopMutex *p = (NoopMutex *)pMutex;
+  assert( p->bHeld==0 );
+  p->bHeld = 1;
+  return 0;
+}
+static void lsmWin32OsMutexLeave(lsm_mutex *pMutex){
+  NoopMutex *p = (NoopMutex *)pMutex;
+  assert( p->bHeld==1 );
+  p->bHeld = 0;
+}
+#ifdef LSM_DEBUG
+static int lsmWin32OsMutexHeld(lsm_mutex *pMutex){
+  NoopMutex *p = (NoopMutex *)pMutex;
+  return p ? p->bHeld : 1;
+}
+static int lsmWin32OsMutexNotHeld(lsm_mutex *pMutex){
+  NoopMutex *p = (NoopMutex *)pMutex;
+  return p ? !p->bHeld : 1;
+}
+#endif
+/***************************************************************************/
+#endif /* else LSM_MUTEX_NONE */
+
+/* Without LSM_DEBUG, the MutexHeld tests are never called */
+#ifndef LSM_DEBUG
+# define lsmWin32OsMutexHeld    0
+# define lsmWin32OsMutexNotHeld 0
+#endif
+
+lsm_env *lsm_default_env(void){
+  static lsm_env win32_env = {
+    sizeof(lsm_env),         /* nByte */
+    1,                       /* iVersion */
+    /***** file i/o ******************/
+    0,                       /* pVfsCtx */
+    lsmWin32OsFullpath,      /* xFullpath */
+    lsmWin32OsOpen,          /* xOpen */
+    lsmWin32OsRead,          /* xRead */
+    lsmWin32OsWrite,         /* xWrite */
+    lsmWin32OsTruncate,      /* xTruncate */
+    lsmWin32OsSync,          /* xSync */
+    lsmWin32OsSectorSize,    /* xSectorSize */
+    lsmWin32OsRemap,         /* xRemap */
+    lsmWin32OsFileid,        /* xFileid */
+    lsmWin32OsClose,         /* xClose */
+    lsmWin32OsUnlink,        /* xUnlink */
+    lsmWin32OsLock,          /* xLock */
+    lsmWin32OsTestLock,      /* xTestLock */
+    lsmWin32OsShmMap,        /* xShmMap */
+    lsmWin32OsShmBarrier,    /* xShmBarrier */
+    lsmWin32OsShmUnmap,      /* xShmUnmap */
+    /***** memory allocation *********/
+    0,                       /* pMemCtx */
+    lsmWin32OsMalloc,        /* xMalloc */
+    lsmWin32OsRealloc,       /* xRealloc */
+    lsmWin32OsFree,          /* xFree */
+    lsmWin32OsMSize,         /* xSize */
+    /***** mutexes *********************/
+    0,                       /* pMutexCtx */
+    lsmWin32OsMutexStatic,   /* xMutexStatic */
+    lsmWin32OsMutexNew,      /* xMutexNew */
+    lsmWin32OsMutexDel,      /* xMutexDel */
+    lsmWin32OsMutexEnter,    /* xMutexEnter */
+    lsmWin32OsMutexTry,      /* xMutexTry */
+    lsmWin32OsMutexLeave,    /* xMutexLeave */
+    lsmWin32OsMutexHeld,     /* xMutexHeld */
+    lsmWin32OsMutexNotHeld,  /* xMutexNotHeld */
+    /***** other *********************/
+    lsmWin32OsSleep,         /* xSleep */
+  };
+  return &win32_env;
+}
+
+#endif
diff --git a/ext/lsm1/test/lsm1_common.tcl b/ext/lsm1/test/lsm1_common.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..0e6cd84e319eabcbd35cf106df528cbd07066a9a
--- /dev/null
+++ b/ext/lsm1/test/lsm1_common.tcl
@@ -0,0 +1,38 @@
+# 2014 Dec 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. .. test]
+}
+source $testdir/tester.tcl
+
+# Check if the lsm1 extension has been compiled.
+if {$::tcl_platform(platform) == "windows"} {
+  set lsm1 lsm.dll
+} else {
+  set lsm1 lsm.so
+}
+
+if {[file exists [file join .. $lsm1]]} {
+  proc return_if_no_lsm1 {} {}
+} else {
+  proc return_if_no_lsm1 {} {
+    finish_test
+    return -code return
+  }
+  return
+}
+
+proc load_lsm1_vtab {db} {
+  db enable_load_extension 1
+  db eval {SELECT load_extension('../lsm')}
+}
diff --git a/ext/lsm1/test/lsm1_simple.test b/ext/lsm1/test/lsm1_simple.test
new file mode 100644
index 0000000000000000000000000000000000000000..2eab50a83a410ef57d70d88042f7395d15fe65cc
--- /dev/null
+++ b/ext/lsm1/test/lsm1_simple.test
@@ -0,0 +1,152 @@
+# 2017 July 14
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the lsm1 virtual table module.
+#
+
+source [file join [file dirname [info script]] lsm1_common.tcl]
+set testprefix lsm1_simple
+return_if_no_lsm1
+load_lsm1_vtab db
+
+forcedelete testlsm.db
+
+do_execsql_test 100 {
+  CREATE VIRTUAL TABLE x1 USING lsm1(testlsm.db,a,UINT,b,c,d);
+  PRAGMA table_info(x1);
+} {
+  0 a UINT 1 {} 1 
+  1 b {} 0 {} 0 
+  2 c {} 0 {} 0 
+  3 d {} 0 {} 0
+}
+
+do_execsql_test 110 {
+  INSERT INTO x1(a,b,c,d) VALUES(15, 11, 22, 33),(8,'banjo',x'333231',NULL),
+      (12,NULL,3.25,-559281390);
+  SELECT a, quote(b), quote(c), quote(d) FROM x1;
+} {8 'banjo' X'333231' NULL 12 NULL 3.25 -559281390 15 11 22 33}
+do_execsql_test 111 {
+  SELECT a, quote(lsm1_key), quote(lsm1_value) FROM x1;
+} {8 X'08' X'2162616E6A6F1633323105' 12 X'0C' X'05320000000000000A401FFB42ABE9DB' 15 X'0F' X'4284C6'}
+
+do_execsql_test 120 {
+  UPDATE x1 SET d = d+1.0 WHERE a=15;
+  SELECT a, quote(b), quote(c), quote(d) FROM x1;
+} {8 'banjo' X'333231' NULL 12 NULL 3.25 -559281390 15 11 22 34.0}
+
+do_execsql_test 130 {
+  UPDATE x1 SET a=123456789 WHERE a=12;
+  SELECT a, quote(b), quote(c), quote(d) FROM x1;
+} {8 'banjo' X'333231' NULL 15 11 22 34.0 123456789 NULL 3.25 -559281390}
+do_execsql_test 131 {
+  SELECT quote(lsm1_key), printf('0x%x',a) FROM x1 WHERE a > 100000000;
+} {X'FB075BCD15' 0x75bcd15}
+
+do_execsql_test 140 {
+  DELETE FROM x1 WHERE a=15;
+  SELECT a, quote(b), quote(c), quote(d) FROM x1;
+} {8 'banjo' X'333231' NULL 123456789 NULL 3.25 -559281390}
+
+do_test 150 {
+  lsort [glob testlsm.db*]
+} {testlsm.db testlsm.db-log testlsm.db-shm}
+
+db close
+do_test 160 {
+  lsort [glob testlsm.db*]
+} {testlsm.db}
+
+forcedelete testlsm.db
+forcedelete test.db
+sqlite3 db test.db
+load_lsm1_vtab db
+
+
+do_execsql_test 200 {
+  CREATE VIRTUAL TABLE x1 USING lsm1(testlsm.db,a,TEXT,b,c,d);
+  PRAGMA table_info(x1);
+} {
+  0 a TEXT 1 {} 1 
+  1 b {} 0 {} 0 
+  2 c {} 0 {} 0 
+  3 d {} 0 {} 0
+}
+do_execsql_test 210 {
+  INSERT INTO x1(a,b,c,d) VALUES(15, 11, 22, 33),(8,'banjo',x'333231',NULL),
+      (12,NULL,3.25,-559281390);
+  SELECT quote(a), quote(b), quote(c), quote(d), '|' FROM x1;
+} {'12' NULL 3.25 -559281390 | '15' 11 22 33 | '8' 'banjo' X'333231' NULL |}
+do_execsql_test 211 {
+  SELECT quote(a), quote(lsm1_key), quote(lsm1_value), '|' FROM x1;
+} {'12' X'3132' X'05320000000000000A401FFB42ABE9DB' | '15' X'3135' X'4284C6' | '8' X'38' X'2162616E6A6F1633323105' |}
+do_execsql_test 212 {
+  SELECT quote(a), quote(lsm1_key), quote(lsm1_value) FROM x1 WHERE a='12';
+} {'12' X'3132' X'05320000000000000A401FFB42ABE9DB'}
+
+#-------------------------------------------------------------------------
+reset_db
+forcedelete testlsm.db
+load_lsm1_vtab db
+do_execsql_test 300 {
+  CREATE VIRTUAL TABLE x1 USING lsm1(testlsm.db,a,TEXT,b,c,d);
+}
+do_eqp_test 310 {
+  SELECT * FROM x1 WHERE a=?
+} {SCAN TABLE x1 VIRTUAL TABLE INDEX 0:}
+
+do_eqp_test 320 {
+  SELECT * FROM x1 WHERE a>?
+} {SCAN TABLE x1 VIRTUAL TABLE INDEX 2:}
+
+do_eqp_test 330 {
+  SELECT * FROM x1 WHERE a<?
+} {SCAN TABLE x1 VIRTUAL TABLE INDEX 3:}
+do_eqp_test 340 {
+  SELECT * FROM x1 WHERE a BETWEEN ? AND ?
+} {SCAN TABLE x1 VIRTUAL TABLE INDEX 1:}
+
+#-------------------------------------------------------------------------
+reset_db
+forcedelete testlsm.db
+load_lsm1_vtab db
+do_execsql_test 400 {
+  CREATE VIRTUAL TABLE x1 USING lsm1(testlsm.db,a,TEXT,b);
+  INSERT INTO x1 VALUES('one', 1);
+  INSERT INTO x1 VALUES('two', 2);
+  INSERT INTO x1 VALUES('three', 3);
+  INSERT INTO x1 VALUES('four', 4);
+  INSERT INTO x1 VALUES('five', 5);
+}
+do_execsql_test 410 {
+  SELECT b FROM x1 WHERE a = 'two'
+} {2}
+do_execsql_test 411 {
+  SELECT b FROM x1 WHERE a = 'one'
+} {1}
+do_execsql_test 412 {
+  SELECT b FROM x1 WHERE a = 'five'
+} {5}
+
+do_execsql_test 420 {
+  SELECT b FROM x1 WHERE a BETWEEN 'one' AND 'three';
+} {1 3}
+do_execsql_test 421 {
+  SELECT b FROM x1 WHERE a BETWEEN 'five' AND 'two';
+} {5 4 1 3 2}
+do_execsql_test 421 {
+  SELECT b FROM x1 WHERE a > 'five';
+} {4 1 3 2}
+do_execsql_test 421 {
+  SELECT b FROM x1 WHERE a <= 'three';
+} {3 1 4 5}
+
+finish_test
diff --git a/ext/lsm1/tool/mklsm1c.tcl b/ext/lsm1/tool/mklsm1c.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..d4a317b7003238e49ebc5d9ce521d86200cf877b
--- /dev/null
+++ b/ext/lsm1/tool/mklsm1c.tcl
@@ -0,0 +1,88 @@
+#!/bin/sh
+# restart with tclsh \
+exec tclsh "$0" "$@"
+
+set srcdir [file dirname [file dirname [info script]]]
+set G(src) [string map [list %dir% $srcdir] {
+  %dir%/lsm.h
+  %dir%/lsmInt.h
+  %dir%/lsm_vtab.c
+  %dir%/lsm_ckpt.c
+  %dir%/lsm_file.c
+  %dir%/lsm_log.c
+  %dir%/lsm_main.c
+  %dir%/lsm_mem.c
+  %dir%/lsm_mutex.c
+  %dir%/lsm_shared.c
+  %dir%/lsm_sorted.c
+  %dir%/lsm_str.c
+  %dir%/lsm_tree.c
+  %dir%/lsm_unix.c
+  %dir%/lsm_varint.c
+  %dir%/lsm_win32.c
+}]
+
+set G(hdr) {
+
+#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_LSM1) 
+
+#if !defined(NDEBUG) && !defined(SQLITE_DEBUG) 
+# define NDEBUG 1
+#endif
+#if defined(NDEBUG) && defined(SQLITE_DEBUG)
+# undef NDEBUG
+#endif
+
+}
+
+set G(footer) {
+    
+#endif /* !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_LSM1) */
+}
+
+#-------------------------------------------------------------------------
+# Read and return the entire contents of text file $zFile from disk.
+#
+proc readfile {zFile} {
+  set fd [open $zFile]
+  set data [read $fd]
+  close $fd
+  return $data
+}
+
+proc lsm1c_init {zOut} {
+  global G
+  set G(fd) stdout
+  set G(fd) [open $zOut w]
+
+  puts -nonewline $G(fd) $G(hdr)
+}
+
+proc lsm1c_printfile {zIn} {
+  global G
+  set data [readfile $zIn]
+  set zTail [file tail $zIn]
+  puts $G(fd) "#line 1 \"$zTail\""
+
+  foreach line [split $data "\n"] {
+    if {[regexp {^# *include.*lsm} $line]} {
+      set line "/* $line */"
+    } elseif { [regexp {^(const )?[a-zA-Z][a-zA-Z0-9]* [*]?lsm[^_]} $line] } {
+      set line "static $line"
+    }
+    puts $G(fd) $line
+  }
+}
+
+proc lsm1c_close {} {
+  global G
+  puts -nonewline $G(fd) $G(footer)
+  if {$G(fd)!="stdout"} {
+    close $G(fd)
+  }
+}
+
+
+lsm1c_init lsm1.c
+foreach f $G(src) { lsm1c_printfile $f }
+lsm1c_close
diff --git a/ext/misc/README.md b/ext/misc/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..69cb230255e9cf78ecd6c4d99c9706a2f534b9d7
--- /dev/null
+++ b/ext/misc/README.md
@@ -0,0 +1,60 @@
+## Miscellaneous Extensions
+
+This folder contains a collection of smaller loadable extensions.
+See <https://www.sqlite.org/loadext.html> for instructions on how
+to compile and use loadable extensions.
+Each extension in this folder is implemented in a single file of C code.
+
+Each source file contains a description in its header comment.  See the
+header comments for details about each extension.  Additional notes are
+as follows:
+
+  *  **carray.c** &mdash;  This module implements the
+     [carray](https://www.sqlite.org/carray.html) table-valued function.
+     It is a good example of how to go about implementing a custom
+     [table-valued function](https://www.sqlite.org/vtab.html#tabfunc2).
+
+  *  **csv.c** &mdash;  A [virtual table](https://sqlite.org/vtab.html)
+     for reading 
+     [Comma-Separated-Value (CSV) files](https://en.wikipedia.org/wiki/Comma-separated_values).
+
+  *  **dbdump.c** &mdash;  This is not actually a loadable extension, but
+     rather a library that implements an approximate equivalent to the
+     ".dump" command of the
+     [command-line shell](https://www.sqlite.org/cli.html).
+
+  *  **json1.c** &mdash;  Various SQL functions and table-valued functions
+     for processing JSON.  This extension is already built into the
+     [SQLite amalgamation](https://sqlite.org/amalgamation.html).  See
+     <https://sqlite.org/json1.html> for additional information.
+
+  *  **memvfs.c** &mdash;  This file implements a custom
+     [VFS](https://www.sqlite.org/vfs.html) that stores an entire database
+     file in a single block of RAM.  It serves as a good example of how
+     to implement a simple custom VFS.
+
+  *  **rot13.c** &mdash;  This file implements the very simple rot13()
+     substitution function.  This file makes a good template for implementing
+     new custom SQL functions for SQLite.
+
+  *  **series.c** &mdash;  This is an implementation of the
+     "generate_series" [virtual table](https://www.sqlite.org/vtab.html).
+     It can make a good template for new custom virtual table implementations.
+
+  *  **shathree.c** &mdash;  An implementation of the sha3() and
+     sha3_query() SQL functions.  The file is named "shathree.c" instead
+     of "sha3.c" because the default entry point names in SQLite are based
+     on the source filename with digits removed, so if we used the name
+     "sha3.c" then the entry point would conflict with the prior "sha1.c"
+     extension.
+
+  *  **unionvtab.c** &mdash; Implementation of the unionvtab and
+     [swarmvtab](https://sqlite.org/swarmvtab.html) virtual tables.
+     These virtual tables allow a single
+     large table to be spread out across multiple database files.  In the
+     case of swarmvtab, the individual database files can be attached on
+     demand.
+
+  *  **zipfile.c** &mdash;  A [virtual table](https://sqlite.org/vtab.html)
+     that can read and write a 
+     [ZIP archive](https://en.wikipedia.org/wiki/Zip_%28file_format%29).
diff --git a/ext/misc/amatch.c b/ext/misc/amatch.c
new file mode 100644
index 0000000000000000000000000000000000000000..dd9bee53d7ed2a58787ab24faae2ab51cddc5b4a
--- /dev/null
+++ b/ext/misc/amatch.c
@@ -0,0 +1,1502 @@
+/*
+** 2013-03-14
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** This file contains code for a demonstration virtual table that finds
+** "approximate matches" - strings from a finite set that are nearly the
+** same as a single input string.  The virtual table is called "amatch".
+**
+** A amatch virtual table is created like this:
+**
+**     CREATE VIRTUAL TABLE f USING approximate_match(
+**        vocabulary_table=<tablename>,      -- V
+**        vocabulary_word=<columnname>,      -- W
+**        vocabulary_language=<columnname>,  -- L
+**        edit_distances=<edit-cost-table>
+**     );
+**
+** When it is created, the new amatch table must be supplied with the
+** the name of a table V and columns V.W and V.L such that 
+**
+**     SELECT W FROM V WHERE L=$language
+**
+** returns the allowed vocabulary for the match.  If the "vocabulary_language"
+** or L columnname is left unspecified or is an empty string, then no
+** filtering of the vocabulary by language is performed. 
+**
+** For efficiency, it is essential that the vocabulary table be indexed:
+**
+**     CREATE vocab_index ON V(W)
+**
+** A separate edit-cost-table provides scoring information that defines 
+** what it means for one string to be "close" to another.
+**
+** The edit-cost-table must contain exactly four columns (more precisely,
+** the statement "SELECT * FROM <edit-cost-table>" must return records
+** that consist of four columns). It does not matter what the columns are
+** named. 
+**
+** Each row in the edit-cost-table represents a single character
+** transformation going from user input to the vocabulary. The leftmost 
+** column of the row (column 0) contains an integer identifier of the
+** language to which the transformation rule belongs (see "MULTIPLE LANGUAGES"
+** below). The second column of the row (column 1) contains the input
+** character or characters - the characters of user input. The third 
+** column contains characters as they appear in the vocabulary table.
+** And the fourth column contains the integer cost of making the
+** transformation. For example:
+**
+**    CREATE TABLE f_data(iLang, cFrom, cTo, Cost);
+**    INSERT INTO f_data(iLang, cFrom, cTo, Cost) VALUES(0, '', 'a', 100);
+**    INSERT INTO f_data(iLang, cFrom, cTo, Cost) VALUES(0, 'b', '', 87);
+**    INSERT INTO f_data(iLang, cFrom, cTo, Cost) VALUES(0, 'o', 'oe', 38);
+**    INSERT INTO f_data(iLang, cFrom, cTo, Cost) VALUES(0, 'oe', 'o', 40);
+**
+** The first row inserted into the edit-cost-table by the SQL script
+** above indicates that the cost of having an extra 'a' in the vocabulary
+** table that is missing in the user input 100.  (All costs are integers.
+** Overall cost must not exceed 16777216.)  The second INSERT statement 
+** creates a rule saying that the cost of having a single letter 'b' in
+** user input which is missing in the vocabulary table is 87.  The third
+** INSERT statement mean that the cost of matching an 'o' in user input 
+** against an 'oe' in the vocabulary table is 38.  And so forth.
+**
+** The following rules are special:
+**
+**    INSERT INTO f_data(iLang, cFrom, cTo, Cost) VALUES(0, '?', '', 97);
+**    INSERT INTO f_data(iLang, cFrom, cTo, Cost) VALUES(0, '', '?', 98);
+**    INSERT INTO f_data(iLang, cFrom, cTo, Cost) VALUES(0, '?', '?', 99);
+**
+** The '?' to '' rule is the cost of having any single character in the input
+** that is not found in the vocabular.  The '' to '?' rule is the cost of
+** having a character in the vocabulary table that is missing from input.
+** And the '?' to '?' rule is the cost of doing an arbitrary character
+** substitution.  These three generic rules apply across all languages.
+** In other words, the iLang field is ignored for the generic substitution
+** rules.  If more than one cost is given for a generic substitution rule,
+** then the lowest cost is used.
+**
+** Once it has been created, the amatch virtual table can be queried
+** as follows:
+**
+**    SELECT word, distance FROM f
+**     WHERE word MATCH 'abcdefg'
+**       AND distance<200;
+**
+** This query outputs the strings contained in the T(F) field that
+** are close to "abcdefg" and in order of increasing distance.  No string
+** is output more than once.  If there are multiple ways to transform the
+** target string ("abcdefg") into a string in the vocabulary table then
+** the lowest cost transform is the one that is returned.  In this example,
+** the search is limited to strings with a total distance of less than 200.
+**
+** For efficiency, it is important to put tight bounds on the distance.
+** The time and memory space needed to perform this query is exponential
+** in the maximum distance.  A good rule of thumb is to limit the distance
+** to no more than 1.5 or 2 times the maximum cost of any rule in the
+** edit-cost-table.
+**
+** The amatch is a read-only table.  Any attempt to DELETE, INSERT, or
+** UPDATE on a amatch table will throw an error.
+**
+** It is important to put some kind of a limit on the amatch output.  This
+** can be either in the form of a LIMIT clause at the end of the query,
+** or better, a "distance<NNN" constraint where NNN is some number.  The
+** running time and memory requirement is exponential in the value of NNN 
+** so you want to make sure that NNN is not too big.  A value of NNN that
+** is about twice the average transformation cost seems to give good results.
+**
+** The amatch table can be useful for tasks such as spelling correction.
+** Suppose all allowed words are in table vocabulary(w).  Then one would create
+** an amatch virtual table like this:
+**
+**   CREATE VIRTUAL TABLE ex1 USING amatch(
+**       vocabtable=vocabulary,
+**       vocabcolumn=w,
+**       edit_distances=ec1
+**   );
+**
+** Then given an input word $word, look up close spellings this way:
+**
+**   SELECT word, distance FROM ex1
+**    WHERE word MATCH $word AND distance<200;
+**
+** MULTIPLE LANGUAGES
+**
+** Normally, the "iLang" value associated with all character transformations
+** in the edit-cost-table is zero. However, if required, the amatch 
+** virtual table allows multiple languages to be defined. Each query uses 
+** only a single iLang value.   This allows, for example, a single 
+** amatch table to support multiple languages.
+**
+** By default, only the rules with iLang=0 are used. To specify an 
+** alternative language, a "language = ?" expression must be added to the
+** WHERE clause of a SELECT, where ? is the integer identifier of the desired 
+** language. For example:
+**
+**   SELECT word, distance FROM ex1
+**    WHERE word MATCH $word
+**      AND distance<=200
+**      AND language=1 -- Specify use language 1 instead of 0
+**
+** If no "language = ?" constraint is specified in the WHERE clause, language
+** 0 is used.
+**
+** LIMITS
+**
+** The maximum language number is 2147483647.  The maximum length of either
+** of the strings in the second or third column of the amatch data table
+** is 50 bytes.  The maximum cost on a rule is 1000.
+*/
+#include "sqlite3ext.h"
+SQLITE_EXTENSION_INIT1
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <stdio.h>
+#include <ctype.h>
+
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+
+/*
+** Forward declaration of objects used by this implementation
+*/
+typedef struct amatch_vtab amatch_vtab;
+typedef struct amatch_cursor amatch_cursor;
+typedef struct amatch_rule amatch_rule;
+typedef struct amatch_word amatch_word;
+typedef struct amatch_avl amatch_avl;
+
+
+/*****************************************************************************
+** AVL Tree implementation
+*/
+/*
+** Objects that want to be members of the AVL tree should embedded an
+** instance of this structure.
+*/
+struct amatch_avl {
+  amatch_word *pWord;   /* Points to the object being stored in the tree */
+  char *zKey;           /* Key.  zero-terminated string.  Must be unique */
+  amatch_avl *pBefore;  /* Other elements less than zKey */
+  amatch_avl *pAfter;   /* Other elements greater than zKey */
+  amatch_avl *pUp;      /* Parent element */
+  short int height;     /* Height of this node.  Leaf==1 */
+  short int imbalance;  /* Height difference between pBefore and pAfter */
+};
+
+/* Recompute the amatch_avl.height and amatch_avl.imbalance fields for p.
+** Assume that the children of p have correct heights.
+*/
+static void amatchAvlRecomputeHeight(amatch_avl *p){
+  short int hBefore = p->pBefore ? p->pBefore->height : 0;
+  short int hAfter = p->pAfter ? p->pAfter->height : 0;
+  p->imbalance = hBefore - hAfter;  /* -: pAfter higher.  +: pBefore higher */
+  p->height = (hBefore>hAfter ? hBefore : hAfter)+1;
+}
+
+/*
+**     P                B
+**    / \              / \
+**   B   Z    ==>     X   P
+**  / \                  / \
+** X   Y                Y   Z
+**
+*/
+static amatch_avl *amatchAvlRotateBefore(amatch_avl *pP){
+  amatch_avl *pB = pP->pBefore;
+  amatch_avl *pY = pB->pAfter;
+  pB->pUp = pP->pUp;
+  pB->pAfter = pP;
+  pP->pUp = pB;
+  pP->pBefore = pY;
+  if( pY ) pY->pUp = pP;
+  amatchAvlRecomputeHeight(pP);
+  amatchAvlRecomputeHeight(pB);
+  return pB;
+}
+
+/*
+**     P                A
+**    / \              / \
+**   X   A    ==>     P   Z
+**      / \          / \
+**     Y   Z        X   Y
+**
+*/
+static amatch_avl *amatchAvlRotateAfter(amatch_avl *pP){
+  amatch_avl *pA = pP->pAfter;
+  amatch_avl *pY = pA->pBefore;
+  pA->pUp = pP->pUp;
+  pA->pBefore = pP;
+  pP->pUp = pA;
+  pP->pAfter = pY;
+  if( pY ) pY->pUp = pP;
+  amatchAvlRecomputeHeight(pP);
+  amatchAvlRecomputeHeight(pA);
+  return pA;
+}
+
+/*
+** Return a pointer to the pBefore or pAfter pointer in the parent
+** of p that points to p.  Or if p is the root node, return pp.
+*/
+static amatch_avl **amatchAvlFromPtr(amatch_avl *p, amatch_avl **pp){
+  amatch_avl *pUp = p->pUp;
+  if( pUp==0 ) return pp;
+  if( pUp->pAfter==p ) return &pUp->pAfter;
+  return &pUp->pBefore;
+}
+
+/*
+** Rebalance all nodes starting with p and working up to the root.
+** Return the new root.
+*/
+static amatch_avl *amatchAvlBalance(amatch_avl *p){
+  amatch_avl *pTop = p;
+  amatch_avl **pp;
+  while( p ){
+    amatchAvlRecomputeHeight(p);
+    if( p->imbalance>=2 ){
+      amatch_avl *pB = p->pBefore;
+      if( pB->imbalance<0 ) p->pBefore = amatchAvlRotateAfter(pB);
+      pp = amatchAvlFromPtr(p,&p);
+      p = *pp = amatchAvlRotateBefore(p);
+    }else if( p->imbalance<=(-2) ){
+      amatch_avl *pA = p->pAfter;
+      if( pA->imbalance>0 ) p->pAfter = amatchAvlRotateBefore(pA);
+      pp = amatchAvlFromPtr(p,&p);
+      p = *pp = amatchAvlRotateAfter(p);
+    }
+    pTop = p;
+    p = p->pUp;
+  }
+  return pTop;
+}
+
+/* Search the tree rooted at p for an entry with zKey.  Return a pointer
+** to the entry or return NULL.
+*/
+static amatch_avl *amatchAvlSearch(amatch_avl *p, const char *zKey){
+  int c;
+  while( p && (c = strcmp(zKey, p->zKey))!=0 ){
+    p = (c<0) ? p->pBefore : p->pAfter;
+  }
+  return p;
+}
+
+/* Find the first node (the one with the smallest key).
+*/
+static amatch_avl *amatchAvlFirst(amatch_avl *p){
+  if( p ) while( p->pBefore ) p = p->pBefore;
+  return p;
+}
+
+#if 0 /* NOT USED */
+/* Return the node with the next larger key after p.
+*/
+static amatch_avl *amatchAvlNext(amatch_avl *p){
+  amatch_avl *pPrev = 0;
+  while( p && p->pAfter==pPrev ){
+    pPrev = p;
+    p = p->pUp;
+  }
+  if( p && pPrev==0 ){
+    p = amatchAvlFirst(p->pAfter);
+  }
+  return p;
+}
+#endif
+
+#if 0 /* NOT USED */
+/* Verify AVL tree integrity
+*/
+static int amatchAvlIntegrity(amatch_avl *pHead){
+  amatch_avl *p;
+  if( pHead==0 ) return 1;
+  if( (p = pHead->pBefore)!=0 ){
+    assert( p->pUp==pHead );
+    assert( amatchAvlIntegrity(p) );
+    assert( strcmp(p->zKey, pHead->zKey)<0 );
+    while( p->pAfter ) p = p->pAfter;
+    assert( strcmp(p->zKey, pHead->zKey)<0 );
+  }
+  if( (p = pHead->pAfter)!=0 ){
+    assert( p->pUp==pHead );
+    assert( amatchAvlIntegrity(p) );
+    assert( strcmp(p->zKey, pHead->zKey)>0 );
+    p = amatchAvlFirst(p);
+    assert( strcmp(p->zKey, pHead->zKey)>0 );
+  }
+  return 1;
+}
+static int amatchAvlIntegrity2(amatch_avl *pHead){
+  amatch_avl *p, *pNext;
+  for(p=amatchAvlFirst(pHead); p; p=pNext){
+    pNext = amatchAvlNext(p);
+    if( pNext==0 ) break;
+    assert( strcmp(p->zKey, pNext->zKey)<0 );
+  }
+  return 1;
+}
+#endif
+
+/* Insert a new node pNew.  Return NULL on success.  If the key is not
+** unique, then do not perform the insert but instead leave pNew unchanged
+** and return a pointer to an existing node with the same key.
+*/
+static amatch_avl *amatchAvlInsert(amatch_avl **ppHead, amatch_avl *pNew){
+  int c;
+  amatch_avl *p = *ppHead;
+  if( p==0 ){
+    p = pNew;
+    pNew->pUp = 0;
+  }else{
+    while( p ){
+      c = strcmp(pNew->zKey, p->zKey);
+      if( c<0 ){
+        if( p->pBefore ){
+          p = p->pBefore;
+        }else{
+          p->pBefore = pNew;
+          pNew->pUp = p;
+          break;
+        }
+      }else if( c>0 ){
+        if( p->pAfter ){
+          p = p->pAfter;
+        }else{
+          p->pAfter = pNew;
+          pNew->pUp = p;
+          break;
+        }
+      }else{
+        return p;
+      }
+    }
+  }
+  pNew->pBefore = 0;
+  pNew->pAfter = 0;
+  pNew->height = 1;
+  pNew->imbalance = 0;
+  *ppHead = amatchAvlBalance(p);
+  /* assert( amatchAvlIntegrity(*ppHead) ); */
+  /* assert( amatchAvlIntegrity2(*ppHead) ); */
+  return 0;
+}
+
+/* Remove node pOld from the tree.  pOld must be an element of the tree or
+** the AVL tree will become corrupt.
+*/
+static void amatchAvlRemove(amatch_avl **ppHead, amatch_avl *pOld){
+  amatch_avl **ppParent;
+  amatch_avl *pBalance = 0;
+  /* assert( amatchAvlSearch(*ppHead, pOld->zKey)==pOld ); */
+  ppParent = amatchAvlFromPtr(pOld, ppHead);
+  if( pOld->pBefore==0 && pOld->pAfter==0 ){
+    *ppParent = 0;
+    pBalance = pOld->pUp;
+  }else if( pOld->pBefore && pOld->pAfter ){
+    amatch_avl *pX, *pY;
+    pX = amatchAvlFirst(pOld->pAfter);
+    *amatchAvlFromPtr(pX, 0) = pX->pAfter;
+    if( pX->pAfter ) pX->pAfter->pUp = pX->pUp;
+    pBalance = pX->pUp;
+    pX->pAfter = pOld->pAfter;
+    if( pX->pAfter ){
+      pX->pAfter->pUp = pX;
+    }else{
+      assert( pBalance==pOld );
+      pBalance = pX;
+    }
+    pX->pBefore = pY = pOld->pBefore;
+    if( pY ) pY->pUp = pX;
+    pX->pUp = pOld->pUp;
+    *ppParent = pX;
+  }else if( pOld->pBefore==0 ){
+    *ppParent = pBalance = pOld->pAfter;
+    pBalance->pUp = pOld->pUp;
+  }else if( pOld->pAfter==0 ){
+    *ppParent = pBalance = pOld->pBefore;
+    pBalance->pUp = pOld->pUp;
+  }
+  *ppHead = amatchAvlBalance(pBalance);
+  pOld->pUp = 0;
+  pOld->pBefore = 0;
+  pOld->pAfter = 0;
+  /* assert( amatchAvlIntegrity(*ppHead) ); */
+  /* assert( amatchAvlIntegrity2(*ppHead) ); */
+}
+/*
+** End of the AVL Tree implementation
+******************************************************************************/
+
+
+/*
+** Various types.
+**
+** amatch_cost is the "cost" of an edit operation.
+**
+** amatch_len is the length of a matching string.  
+**
+** amatch_langid is an ruleset identifier.
+*/
+typedef int amatch_cost;
+typedef signed char amatch_len;
+typedef int amatch_langid;
+
+/*
+** Limits
+*/
+#define AMATCH_MX_LENGTH          50  /* Maximum length of a rule string */
+#define AMATCH_MX_LANGID  2147483647  /* Maximum rule ID */
+#define AMATCH_MX_COST          1000  /* Maximum single-rule cost */
+
+/*
+** A match or partial match
+*/
+struct amatch_word {
+  amatch_word *pNext;   /* Next on a list of all amatch_words */
+  amatch_avl sCost;     /* Linkage of this node into the cost tree */
+  amatch_avl sWord;     /* Linkage of this node into the word tree */
+  amatch_cost rCost;    /* Cost of the match so far */
+  int iSeq;             /* Sequence number */
+  char zCost[10];       /* Cost key (text rendering of rCost) */
+  short int nMatch;     /* Input characters matched */
+  char zWord[4];        /* Text of the word.  Extra space appended as needed */
+};
+
+/*
+** Each transformation rule is stored as an instance of this object.
+** All rules are kept on a linked list sorted by rCost.
+*/
+struct amatch_rule {
+  amatch_rule *pNext;      /* Next rule in order of increasing rCost */
+  char *zFrom;             /* Transform from (a string from user input) */
+  amatch_cost rCost;       /* Cost of this transformation */
+  amatch_langid iLang;     /* The langauge to which this rule belongs */
+  amatch_len nFrom, nTo;   /* Length of the zFrom and zTo strings */
+  char zTo[4];             /* Tranform to V.W value (extra space appended) */
+};
+
+/* 
+** A amatch virtual-table object 
+*/
+struct amatch_vtab {
+  sqlite3_vtab base;         /* Base class - must be first */
+  char *zClassName;          /* Name of this class.  Default: "amatch" */
+  char *zDb;                 /* Name of database.  (ex: "main") */
+  char *zSelf;               /* Name of this virtual table */
+  char *zCostTab;            /* Name of edit-cost-table */
+  char *zVocabTab;           /* Name of vocabulary table */
+  char *zVocabWord;          /* Name of vocabulary table word column */
+  char *zVocabLang;          /* Name of vocabulary table language column */
+  amatch_rule *pRule;        /* All active rules in this amatch */
+  amatch_cost rIns;          /* Generic insertion cost  '' -> ? */
+  amatch_cost rDel;          /* Generic deletion cost  ? -> '' */
+  amatch_cost rSub;          /* Generic substitution cost ? -> ? */
+  sqlite3 *db;               /* The database connection */
+  sqlite3_stmt *pVCheck;     /* Query to check zVocabTab */
+  int nCursor;               /* Number of active cursors */
+};
+
+/* A amatch cursor object */
+struct amatch_cursor {
+  sqlite3_vtab_cursor base;  /* Base class - must be first */
+  sqlite3_int64 iRowid;      /* The rowid of the current word */
+  amatch_langid iLang;       /* Use this language ID */
+  amatch_cost rLimit;        /* Maximum cost of any term */
+  int nBuf;                  /* Space allocated for zBuf */
+  int oomErr;                /* True following an OOM error */
+  int nWord;                 /* Number of amatch_word objects */
+  char *zBuf;                /* Temp-use buffer space */
+  char *zInput;              /* Input word to match against */
+  amatch_vtab *pVtab;        /* The virtual table this cursor belongs to */
+  amatch_word *pAllWords;    /* List of all amatch_word objects */
+  amatch_word *pCurrent;     /* Most recent solution */
+  amatch_avl *pCost;         /* amatch_word objects keyed by iCost */
+  amatch_avl *pWord;         /* amatch_word objects keyed by zWord */
+};
+
+/*
+** The two input rule lists are both sorted in order of increasing
+** cost.  Merge them together into a single list, sorted by cost, and
+** return a pointer to the head of that list.
+*/
+static amatch_rule *amatchMergeRules(amatch_rule *pA, amatch_rule *pB){
+  amatch_rule head;
+  amatch_rule *pTail;
+
+  pTail =  &head;
+  while( pA && pB ){
+    if( pA->rCost<=pB->rCost ){
+      pTail->pNext = pA;
+      pTail = pA;
+      pA = pA->pNext;
+    }else{
+      pTail->pNext = pB;
+      pTail = pB;
+      pB = pB->pNext;
+    }
+  }
+  if( pA==0 ){
+    pTail->pNext = pB;
+  }else{
+    pTail->pNext = pA;
+  }
+  return head.pNext;
+}
+
+/*
+** Statement pStmt currently points to a row in the amatch data table. This
+** function allocates and populates a amatch_rule structure according to
+** the content of the row.
+**
+** If successful, *ppRule is set to point to the new object and SQLITE_OK
+** is returned. Otherwise, *ppRule is zeroed, *pzErr may be set to point
+** to an error message and an SQLite error code returned.
+*/
+static int amatchLoadOneRule(
+  amatch_vtab *p,                 /* Fuzzer virtual table handle */
+  sqlite3_stmt *pStmt,            /* Base rule on statements current row */
+  amatch_rule **ppRule,           /* OUT: New rule object */
+  char **pzErr                    /* OUT: Error message */
+){
+  sqlite3_int64 iLang = sqlite3_column_int64(pStmt, 0);
+  const char *zFrom = (const char *)sqlite3_column_text(pStmt, 1);
+  const char *zTo = (const char *)sqlite3_column_text(pStmt, 2);
+  amatch_cost rCost = sqlite3_column_int(pStmt, 3);
+
+  int rc = SQLITE_OK;             /* Return code */
+  int nFrom;                      /* Size of string zFrom, in bytes */
+  int nTo;                        /* Size of string zTo, in bytes */
+  amatch_rule *pRule = 0;         /* New rule object to return */
+
+  if( zFrom==0 ) zFrom = "";
+  if( zTo==0 ) zTo = "";
+  nFrom = (int)strlen(zFrom);
+  nTo = (int)strlen(zTo);
+
+  /* Silently ignore null transformations */
+  if( strcmp(zFrom, zTo)==0 ){
+    if( zFrom[0]=='?' && zFrom[1]==0 ){
+      if( p->rSub==0 || p->rSub>rCost ) p->rSub = rCost;
+    }
+    *ppRule = 0;
+    return SQLITE_OK;
+  }
+
+  if( rCost<=0 || rCost>AMATCH_MX_COST ){
+    *pzErr = sqlite3_mprintf("%s: cost must be between 1 and %d", 
+        p->zClassName, AMATCH_MX_COST
+    );
+    rc = SQLITE_ERROR;
+  }else
+  if( nFrom>AMATCH_MX_LENGTH || nTo>AMATCH_MX_LENGTH ){
+    *pzErr = sqlite3_mprintf("%s: maximum string length is %d", 
+        p->zClassName, AMATCH_MX_LENGTH
+    );
+    rc = SQLITE_ERROR;    
+  }else
+  if( iLang<0 || iLang>AMATCH_MX_LANGID ){
+    *pzErr = sqlite3_mprintf("%s: iLang must be between 0 and %d", 
+        p->zClassName, AMATCH_MX_LANGID
+    );
+    rc = SQLITE_ERROR;    
+  }else
+  if( strcmp(zFrom,"")==0 && strcmp(zTo,"?")==0 ){
+    if( p->rIns==0 || p->rIns>rCost ) p->rIns = rCost;
+  }else
+  if( strcmp(zFrom,"?")==0 && strcmp(zTo,"")==0 ){
+    if( p->rDel==0 || p->rDel>rCost ) p->rDel = rCost;
+  }else
+  {
+    pRule = sqlite3_malloc64( sizeof(*pRule) + nFrom + nTo );
+    if( pRule==0 ){
+      rc = SQLITE_NOMEM;
+    }else{
+      memset(pRule, 0, sizeof(*pRule));
+      pRule->zFrom = &pRule->zTo[nTo+1];
+      pRule->nFrom = (amatch_len)nFrom;
+      memcpy(pRule->zFrom, zFrom, nFrom+1);
+      memcpy(pRule->zTo, zTo, nTo+1);
+      pRule->nTo = (amatch_len)nTo;
+      pRule->rCost = rCost;
+      pRule->iLang = (int)iLang;
+    }
+  }
+
+  *ppRule = pRule;
+  return rc;
+}
+
+/*
+** Free all the content in the edit-cost-table
+*/
+static void amatchFreeRules(amatch_vtab *p){
+  while( p->pRule ){
+    amatch_rule *pRule = p->pRule;
+    p->pRule = pRule->pNext;
+    sqlite3_free(pRule);
+  }
+  p->pRule = 0;
+}
+
+/*
+** Load the content of the amatch data table into memory.
+*/
+static int amatchLoadRules(
+  sqlite3 *db,                    /* Database handle */
+  amatch_vtab *p,                 /* Virtual amatch table to configure */
+  char **pzErr                    /* OUT: Error message */
+){
+  int rc = SQLITE_OK;             /* Return code */
+  char *zSql;                     /* SELECT used to read from rules table */
+  amatch_rule *pHead = 0;
+
+  zSql = sqlite3_mprintf("SELECT * FROM %Q.%Q", p->zDb, p->zCostTab);
+  if( zSql==0 ){
+    rc = SQLITE_NOMEM;
+  }else{
+    int rc2;                      /* finalize() return code */
+    sqlite3_stmt *pStmt = 0;
+    rc = sqlite3_prepare_v2(db, zSql, -1, &pStmt, 0);
+    if( rc!=SQLITE_OK ){
+      *pzErr = sqlite3_mprintf("%s: %s", p->zClassName, sqlite3_errmsg(db));
+    }else if( sqlite3_column_count(pStmt)!=4 ){
+      *pzErr = sqlite3_mprintf("%s: %s has %d columns, expected 4",
+          p->zClassName, p->zCostTab, sqlite3_column_count(pStmt)
+      );
+      rc = SQLITE_ERROR;
+    }else{
+      while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pStmt) ){
+        amatch_rule *pRule = 0;
+        rc = amatchLoadOneRule(p, pStmt, &pRule, pzErr);
+        if( pRule ){
+          pRule->pNext = pHead;
+          pHead = pRule;
+        }
+      }
+    }
+    rc2 = sqlite3_finalize(pStmt);
+    if( rc==SQLITE_OK ) rc = rc2;
+  }
+  sqlite3_free(zSql);
+
+  /* All rules are now in a singly linked list starting at pHead. This
+  ** block sorts them by cost and then sets amatch_vtab.pRule to point to 
+  ** point to the head of the sorted list.
+  */
+  if( rc==SQLITE_OK ){
+    unsigned int i;
+    amatch_rule *pX;
+    amatch_rule *a[15];
+    for(i=0; i<sizeof(a)/sizeof(a[0]); i++) a[i] = 0;
+    while( (pX = pHead)!=0 ){
+      pHead = pX->pNext;
+      pX->pNext = 0;
+      for(i=0; a[i] && i<sizeof(a)/sizeof(a[0])-1; i++){
+        pX = amatchMergeRules(a[i], pX);
+        a[i] = 0;
+      }
+      a[i] = amatchMergeRules(a[i], pX);
+    }
+    for(pX=a[0], i=1; i<sizeof(a)/sizeof(a[0]); i++){
+      pX = amatchMergeRules(a[i], pX);
+    }
+    p->pRule = amatchMergeRules(p->pRule, pX);
+  }else{
+    /* An error has occurred. Setting p->pRule to point to the head of the
+    ** allocated list ensures that the list will be cleaned up in this case.
+    */
+    assert( p->pRule==0 );
+    p->pRule = pHead;
+  }
+
+  return rc;
+}
+
+/*
+** This function converts an SQL quoted string into an unquoted string
+** and returns a pointer to a buffer allocated using sqlite3_malloc() 
+** containing the result. The caller should eventually free this buffer
+** using sqlite3_free.
+**
+** Examples:
+**
+**     "abc"   becomes   abc
+**     'xyz'   becomes   xyz
+**     [pqr]   becomes   pqr
+**     `mno`   becomes   mno
+*/
+static char *amatchDequote(const char *zIn){
+  sqlite3_int64 nIn;              /* Size of input string, in bytes */
+  char *zOut;                     /* Output (dequoted) string */
+
+  nIn = strlen(zIn);
+  zOut = sqlite3_malloc64(nIn+1);
+  if( zOut ){
+    char q = zIn[0];              /* Quote character (if any ) */
+
+    if( q!='[' && q!= '\'' && q!='"' && q!='`' ){
+      memcpy(zOut, zIn, (size_t)(nIn+1));
+    }else{
+      int iOut = 0;               /* Index of next byte to write to output */
+      int iIn;                    /* Index of next byte to read from input */
+
+      if( q=='[' ) q = ']';
+      for(iIn=1; iIn<nIn; iIn++){
+        if( zIn[iIn]==q ) iIn++;
+        zOut[iOut++] = zIn[iIn];
+      }
+    }
+    assert( (int)strlen(zOut)<=nIn );
+  }
+  return zOut;
+}
+
+/*
+** Deallocate the pVCheck prepared statement.
+*/
+static void amatchVCheckClear(amatch_vtab *p){
+  if( p->pVCheck ){
+    sqlite3_finalize(p->pVCheck);
+    p->pVCheck = 0;
+  }
+}
+
+/*
+** Deallocate an amatch_vtab object
+*/
+static void amatchFree(amatch_vtab *p){
+  if( p ){
+    amatchFreeRules(p);
+    amatchVCheckClear(p);
+    sqlite3_free(p->zClassName);
+    sqlite3_free(p->zDb);
+    sqlite3_free(p->zCostTab);
+    sqlite3_free(p->zVocabTab);
+    sqlite3_free(p->zVocabWord);
+    sqlite3_free(p->zVocabLang);
+    sqlite3_free(p->zSelf);
+    memset(p, 0, sizeof(*p));
+    sqlite3_free(p);
+  }
+}
+
+/*
+** xDisconnect/xDestroy method for the amatch module.
+*/
+static int amatchDisconnect(sqlite3_vtab *pVtab){
+  amatch_vtab *p = (amatch_vtab*)pVtab;
+  assert( p->nCursor==0 );
+  amatchFree(p);
+  return SQLITE_OK;
+}
+
+/*
+** Check to see if the argument is of the form:
+**
+**       KEY = VALUE
+**
+** If it is, return a pointer to the first character of VALUE.
+** If not, return NULL.  Spaces around the = are ignored.
+*/
+static const char *amatchValueOfKey(const char *zKey, const char *zStr){
+  int nKey = (int)strlen(zKey);
+  int nStr = (int)strlen(zStr);
+  int i;
+  if( nStr<nKey+1 ) return 0;
+  if( memcmp(zStr, zKey, nKey)!=0 ) return 0;
+  for(i=nKey; isspace((unsigned char)zStr[i]); i++){}
+  if( zStr[i]!='=' ) return 0;
+  i++;
+  while( isspace((unsigned char)zStr[i]) ){ i++; }
+  return zStr+i;
+}
+
+/*
+** xConnect/xCreate method for the amatch module. Arguments are:
+**
+**   argv[0]    -> module name  ("approximate_match")
+**   argv[1]    -> database name
+**   argv[2]    -> table name
+**   argv[3...] -> arguments
+*/
+static int amatchConnect(
+  sqlite3 *db,
+  void *pAux,
+  int argc, const char *const*argv,
+  sqlite3_vtab **ppVtab,
+  char **pzErr
+){
+  int rc = SQLITE_OK;             /* Return code */
+  amatch_vtab *pNew = 0;          /* New virtual table */
+  const char *zModule = argv[0];
+  const char *zDb = argv[1];
+  const char *zVal;
+  int i;
+
+  (void)pAux;
+  *ppVtab = 0;
+  pNew = sqlite3_malloc( sizeof(*pNew) );
+  if( pNew==0 ) return SQLITE_NOMEM;
+  rc = SQLITE_NOMEM;
+  memset(pNew, 0, sizeof(*pNew));
+  pNew->db = db;
+  pNew->zClassName = sqlite3_mprintf("%s", zModule);
+  if( pNew->zClassName==0 ) goto amatchConnectError;
+  pNew->zDb = sqlite3_mprintf("%s", zDb);
+  if( pNew->zDb==0 ) goto amatchConnectError;
+  pNew->zSelf = sqlite3_mprintf("%s", argv[2]);
+  if( pNew->zSelf==0 ) goto amatchConnectError;
+  for(i=3; i<argc; i++){
+    zVal = amatchValueOfKey("vocabulary_table", argv[i]);
+    if( zVal ){
+      sqlite3_free(pNew->zVocabTab);
+      pNew->zVocabTab = amatchDequote(zVal);
+      if( pNew->zVocabTab==0 ) goto amatchConnectError;
+      continue;
+    }
+    zVal = amatchValueOfKey("vocabulary_word", argv[i]);
+    if( zVal ){
+      sqlite3_free(pNew->zVocabWord);
+      pNew->zVocabWord = amatchDequote(zVal);
+      if( pNew->zVocabWord==0 ) goto amatchConnectError;
+      continue;
+    }
+    zVal = amatchValueOfKey("vocabulary_language", argv[i]);
+    if( zVal ){
+      sqlite3_free(pNew->zVocabLang);
+      pNew->zVocabLang = amatchDequote(zVal);
+      if( pNew->zVocabLang==0 ) goto amatchConnectError;
+      continue;
+    }
+    zVal = amatchValueOfKey("edit_distances", argv[i]);
+    if( zVal ){
+      sqlite3_free(pNew->zCostTab);
+      pNew->zCostTab = amatchDequote(zVal);
+      if( pNew->zCostTab==0 ) goto amatchConnectError;
+      continue;
+    }
+    *pzErr = sqlite3_mprintf("unrecognized argument: [%s]\n", argv[i]);
+    amatchFree(pNew);
+    *ppVtab = 0;
+    return SQLITE_ERROR;
+  }
+  rc = SQLITE_OK;
+  if( pNew->zCostTab==0 ){
+    *pzErr = sqlite3_mprintf("no edit_distances table specified");
+    rc = SQLITE_ERROR;
+  }else{
+    rc = amatchLoadRules(db, pNew, pzErr);
+  }
+  if( rc==SQLITE_OK ){
+    sqlite3_vtab_config(db, SQLITE_VTAB_INNOCUOUS);
+    rc = sqlite3_declare_vtab(db,
+           "CREATE TABLE x(word,distance,language,"
+           "command HIDDEN,nword HIDDEN)"
+         );
+#define AMATCH_COL_WORD       0
+#define AMATCH_COL_DISTANCE   1
+#define AMATCH_COL_LANGUAGE   2
+#define AMATCH_COL_COMMAND    3
+#define AMATCH_COL_NWORD      4
+  }
+  if( rc!=SQLITE_OK ){
+    amatchFree(pNew);
+  }
+  *ppVtab = &pNew->base;
+  return rc;
+
+amatchConnectError:
+  amatchFree(pNew);
+  return rc;
+}
+
+/*
+** Open a new amatch cursor.
+*/
+static int amatchOpen(sqlite3_vtab *pVTab, sqlite3_vtab_cursor **ppCursor){
+  amatch_vtab *p = (amatch_vtab*)pVTab;
+  amatch_cursor *pCur;
+  pCur = sqlite3_malloc( sizeof(*pCur) );
+  if( pCur==0 ) return SQLITE_NOMEM;
+  memset(pCur, 0, sizeof(*pCur));
+  pCur->pVtab = p;
+  *ppCursor = &pCur->base;
+  p->nCursor++;
+  return SQLITE_OK;
+}
+
+/*
+** Free up all the memory allocated by a cursor.  Set it rLimit to 0
+** to indicate that it is at EOF.
+*/
+static void amatchClearCursor(amatch_cursor *pCur){
+  amatch_word *pWord, *pNextWord;
+  for(pWord=pCur->pAllWords; pWord; pWord=pNextWord){
+    pNextWord = pWord->pNext;
+    sqlite3_free(pWord);
+  }
+  pCur->pAllWords = 0;
+  sqlite3_free(pCur->zInput);
+  pCur->zInput = 0;
+  sqlite3_free(pCur->zBuf);
+  pCur->zBuf = 0;
+  pCur->nBuf = 0;
+  pCur->pCost = 0;
+  pCur->pWord = 0;
+  pCur->pCurrent = 0;
+  pCur->rLimit = 1000000;
+  pCur->iLang = 0;
+  pCur->nWord = 0;
+}
+
+/*
+** Close a amatch cursor.
+*/
+static int amatchClose(sqlite3_vtab_cursor *cur){
+  amatch_cursor *pCur = (amatch_cursor *)cur;
+  amatchClearCursor(pCur);
+  pCur->pVtab->nCursor--;
+  sqlite3_free(pCur);
+  return SQLITE_OK;
+}
+
+/*
+** Render a 24-bit unsigned integer as a 4-byte base-64 number.
+*/
+static void amatchEncodeInt(int x, char *z){
+  static const char a[] = 
+    "0123456789"
+    "ABCDEFGHIJ"
+    "KLMNOPQRST"
+    "UVWXYZ^abc"
+    "defghijklm"
+    "nopqrstuvw"
+    "xyz~";
+  z[0] = a[(x>>18)&0x3f];
+  z[1] = a[(x>>12)&0x3f];
+  z[2] = a[(x>>6)&0x3f];
+  z[3] = a[x&0x3f];
+}
+
+/*
+** Write the zCost[] field for a amatch_word object
+*/
+static void amatchWriteCost(amatch_word *pWord){
+  amatchEncodeInt(pWord->rCost, pWord->zCost);
+  amatchEncodeInt(pWord->iSeq, pWord->zCost+4);
+  pWord->zCost[8] = 0;
+}
+
+/* Circumvent compiler warnings about the use of strcpy() by supplying
+** our own implementation.
+*/
+static void amatchStrcpy(char *dest, const char *src){
+  while( (*(dest++) = *(src++))!=0 ){}
+}
+static void amatchStrcat(char *dest, const char *src){
+  while( *dest ) dest++;
+  amatchStrcpy(dest, src);
+}
+
+/*
+** Add a new amatch_word object to the queue.
+**
+** If a prior amatch_word object with the same zWord, and nMatch
+** already exists, update its rCost (if the new rCost is less) but
+** otherwise leave it unchanged.  Do not add a duplicate.
+**
+** Do nothing if the cost exceeds threshold.
+*/
+static void amatchAddWord(
+  amatch_cursor *pCur,
+  amatch_cost rCost,
+  int nMatch,
+  const char *zWordBase,
+  const char *zWordTail
+){
+  amatch_word *pWord;
+  amatch_avl *pNode;
+  amatch_avl *pOther;
+  int nBase, nTail;
+  char zBuf[4];
+  
+  if( rCost>pCur->rLimit ){
+    return;
+  }
+  nBase = (int)strlen(zWordBase);
+  nTail = (int)strlen(zWordTail);
+  if( nBase+nTail+3>pCur->nBuf ){
+    pCur->nBuf = nBase+nTail+100;
+    pCur->zBuf = sqlite3_realloc(pCur->zBuf, pCur->nBuf);
+    if( pCur->zBuf==0 ){
+      pCur->nBuf = 0;
+      return;
+    }
+  }
+  amatchEncodeInt(nMatch, zBuf);
+  memcpy(pCur->zBuf, zBuf+2, 2);
+  memcpy(pCur->zBuf+2, zWordBase, nBase);
+  memcpy(pCur->zBuf+2+nBase, zWordTail, nTail+1);
+  pNode = amatchAvlSearch(pCur->pWord, pCur->zBuf);
+  if( pNode ){
+    pWord = pNode->pWord;
+    if( pWord->rCost>rCost ){
+#ifdef AMATCH_TRACE_1
+      printf("UPDATE [%s][%.*s^%s] %d (\"%s\" \"%s\")\n",
+             pWord->zWord+2, pWord->nMatch, pCur->zInput, pCur->zInput,
+             pWord->rCost, pWord->zWord, pWord->zCost);
+#endif
+      amatchAvlRemove(&pCur->pCost, &pWord->sCost);
+      pWord->rCost = rCost;
+      amatchWriteCost(pWord);
+#ifdef AMATCH_TRACE_1
+      printf("  ---> %d (\"%s\" \"%s\")\n",
+             pWord->rCost, pWord->zWord, pWord->zCost);
+#endif
+      pOther = amatchAvlInsert(&pCur->pCost, &pWord->sCost);
+      assert( pOther==0 ); (void)pOther;
+    }
+    return;
+  }
+  pWord = sqlite3_malloc64( sizeof(*pWord) + nBase + nTail - 1 );
+  if( pWord==0 ) return;
+  memset(pWord, 0, sizeof(*pWord));
+  pWord->rCost = rCost;
+  pWord->iSeq = pCur->nWord++;
+  amatchWriteCost(pWord);
+  pWord->nMatch = (short)nMatch;
+  pWord->pNext = pCur->pAllWords;
+  pCur->pAllWords = pWord;
+  pWord->sCost.zKey = pWord->zCost;
+  pWord->sCost.pWord = pWord;
+  pOther = amatchAvlInsert(&pCur->pCost, &pWord->sCost);
+  assert( pOther==0 ); (void)pOther;
+  pWord->sWord.zKey = pWord->zWord;
+  pWord->sWord.pWord = pWord;
+  amatchStrcpy(pWord->zWord, pCur->zBuf);
+  pOther = amatchAvlInsert(&pCur->pWord, &pWord->sWord);
+  assert( pOther==0 ); (void)pOther;
+#ifdef AMATCH_TRACE_1
+  printf("INSERT [%s][%.*s^%s] %d (\"%s\" \"%s\")\n", pWord->zWord+2,
+       pWord->nMatch, pCur->zInput, pCur->zInput+pWord->nMatch, rCost,
+       pWord->zWord, pWord->zCost);
+#endif
+}
+
+
+/*
+** Advance a cursor to its next row of output
+*/
+static int amatchNext(sqlite3_vtab_cursor *cur){
+  amatch_cursor *pCur = (amatch_cursor*)cur;
+  amatch_word *pWord = 0;
+  amatch_avl *pNode;
+  int isMatch = 0;
+  amatch_vtab *p = pCur->pVtab;
+  int nWord;
+  int rc;
+  int i;
+  const char *zW;
+  amatch_rule *pRule;
+  char *zBuf = 0;
+  char nBuf = 0;
+  char zNext[8];
+  char zNextIn[8];
+  int nNextIn;
+
+  if( p->pVCheck==0 ){
+    char *zSql;
+    if( p->zVocabLang && p->zVocabLang[0] ){
+      zSql = sqlite3_mprintf(
+          "SELECT \"%w\" FROM \"%w\"",
+          " WHERE \"%w\">=?1 AND \"%w\"=?2"
+          " ORDER BY 1",
+          p->zVocabWord, p->zVocabTab,
+          p->zVocabWord, p->zVocabLang
+      );
+    }else{
+      zSql = sqlite3_mprintf(
+          "SELECT \"%w\" FROM \"%w\""
+          " WHERE \"%w\">=?1"
+          " ORDER BY 1",
+          p->zVocabWord, p->zVocabTab,
+          p->zVocabWord
+      );
+    }
+    rc = sqlite3_prepare_v2(p->db, zSql, -1, &p->pVCheck, 0);
+    sqlite3_free(zSql);
+    if( rc ) return rc;
+  }
+  sqlite3_bind_int(p->pVCheck, 2, pCur->iLang);
+
+  do{
+    pNode = amatchAvlFirst(pCur->pCost);
+    if( pNode==0 ){
+      pWord = 0;
+      break;
+    }
+    pWord = pNode->pWord;
+    amatchAvlRemove(&pCur->pCost, &pWord->sCost);
+
+#ifdef AMATCH_TRACE_1
+    printf("PROCESS [%s][%.*s^%s] %d (\"%s\" \"%s\")\n",
+       pWord->zWord+2, pWord->nMatch, pCur->zInput, pCur->zInput+pWord->nMatch,
+       pWord->rCost, pWord->zWord, pWord->zCost);
+#endif
+    nWord = (int)strlen(pWord->zWord+2);
+    if( nWord+20>nBuf ){
+      nBuf = (char)(nWord+100);
+      zBuf = sqlite3_realloc(zBuf, nBuf);
+      if( zBuf==0 ) return SQLITE_NOMEM;
+    }
+    amatchStrcpy(zBuf, pWord->zWord+2);
+    zNext[0] = 0;
+    zNextIn[0] = pCur->zInput[pWord->nMatch];
+    if( zNextIn[0] ){
+      for(i=1; i<=4 && (pCur->zInput[pWord->nMatch+i]&0xc0)==0x80; i++){
+        zNextIn[i] = pCur->zInput[pWord->nMatch+i];
+      }
+      zNextIn[i] = 0;
+      nNextIn = i;
+    }else{
+      nNextIn = 0;
+    }
+
+    if( zNextIn[0] && zNextIn[0]!='*' ){
+      sqlite3_reset(p->pVCheck);
+      amatchStrcat(zBuf, zNextIn);
+      sqlite3_bind_text(p->pVCheck, 1, zBuf, nWord+nNextIn, SQLITE_STATIC);
+      rc = sqlite3_step(p->pVCheck);
+      if( rc==SQLITE_ROW ){
+        zW = (const char*)sqlite3_column_text(p->pVCheck, 0);
+        if( strncmp(zBuf, zW, nWord+nNextIn)==0 ){
+          amatchAddWord(pCur, pWord->rCost, pWord->nMatch+nNextIn, zBuf, "");
+        }
+      }
+      zBuf[nWord] = 0;
+    }
+
+    while( 1 ){
+      amatchStrcpy(zBuf+nWord, zNext);
+      sqlite3_reset(p->pVCheck);
+      sqlite3_bind_text(p->pVCheck, 1, zBuf, -1, SQLITE_TRANSIENT);
+      rc = sqlite3_step(p->pVCheck);
+      if( rc!=SQLITE_ROW ) break;
+      zW = (const char*)sqlite3_column_text(p->pVCheck, 0);
+      amatchStrcpy(zBuf+nWord, zNext);
+      if( strncmp(zW, zBuf, nWord)!=0 ) break;
+      if( (zNextIn[0]=='*' && zNextIn[1]==0)
+       || (zNextIn[0]==0 && zW[nWord]==0)
+      ){
+        isMatch = 1;
+        zNextIn[0] = 0;
+        nNextIn = 0;
+        break;
+      }
+      zNext[0] = zW[nWord];
+      for(i=1; i<=4 && (zW[nWord+i]&0xc0)==0x80; i++){
+        zNext[i] = zW[nWord+i];
+      }
+      zNext[i] = 0;
+      zBuf[nWord] = 0;
+      if( p->rIns>0 ){
+        amatchAddWord(pCur, pWord->rCost+p->rIns, pWord->nMatch, 
+                      zBuf, zNext);
+      }
+      if( p->rSub>0 ){
+        amatchAddWord(pCur, pWord->rCost+p->rSub, pWord->nMatch+nNextIn, 
+                      zBuf, zNext);
+      }
+      if( p->rIns<0 && p->rSub<0 ) break;
+      zNext[i-1]++;  /* FIX ME */
+    }
+    sqlite3_reset(p->pVCheck);
+
+    if( p->rDel>0 ){
+      zBuf[nWord] = 0;
+      amatchAddWord(pCur, pWord->rCost+p->rDel, pWord->nMatch+nNextIn,
+                    zBuf, "");
+    }
+
+    for(pRule=p->pRule; pRule; pRule=pRule->pNext){
+      if( pRule->iLang!=pCur->iLang ) continue;
+      if( strncmp(pRule->zFrom, pCur->zInput+pWord->nMatch, pRule->nFrom)==0 ){
+        amatchAddWord(pCur, pWord->rCost+pRule->rCost,
+                      pWord->nMatch+pRule->nFrom, pWord->zWord+2, pRule->zTo);
+      }
+    }
+  }while( !isMatch );
+  pCur->pCurrent = pWord;
+  sqlite3_free(zBuf);
+  return SQLITE_OK;
+}
+
+/*
+** Called to "rewind" a cursor back to the beginning so that
+** it starts its output over again.  Always called at least once
+** prior to any amatchColumn, amatchRowid, or amatchEof call.
+*/
+static int amatchFilter(
+  sqlite3_vtab_cursor *pVtabCursor, 
+  int idxNum, const char *idxStr,
+  int argc, sqlite3_value **argv
+){
+  amatch_cursor *pCur = (amatch_cursor *)pVtabCursor;
+  const char *zWord = "*";
+  int idx;
+
+  amatchClearCursor(pCur);
+  idx = 0;
+  if( idxNum & 1 ){
+    zWord = (const char*)sqlite3_value_text(argv[0]);
+    idx++;
+  }
+  if( idxNum & 2 ){
+    pCur->rLimit = (amatch_cost)sqlite3_value_int(argv[idx]);
+    idx++;
+  }
+  if( idxNum & 4 ){
+    pCur->iLang = (amatch_cost)sqlite3_value_int(argv[idx]);
+    idx++;
+  }
+  pCur->zInput = sqlite3_mprintf("%s", zWord);
+  if( pCur->zInput==0 ) return SQLITE_NOMEM;
+  amatchAddWord(pCur, 0, 0, "", "");
+  amatchNext(pVtabCursor);
+
+  return SQLITE_OK;
+}
+
+/*
+** Only the word and distance columns have values.  All other columns
+** return NULL
+*/
+static int amatchColumn(sqlite3_vtab_cursor *cur, sqlite3_context *ctx, int i){
+  amatch_cursor *pCur = (amatch_cursor*)cur;
+  switch( i ){
+    case AMATCH_COL_WORD: {
+      sqlite3_result_text(ctx, pCur->pCurrent->zWord+2, -1, SQLITE_STATIC);
+      break;
+    }
+    case AMATCH_COL_DISTANCE: {
+      sqlite3_result_int(ctx, pCur->pCurrent->rCost);
+      break;
+    }
+    case AMATCH_COL_LANGUAGE: {
+      sqlite3_result_int(ctx, pCur->iLang);
+      break;
+    }
+    case AMATCH_COL_NWORD: {
+      sqlite3_result_int(ctx, pCur->nWord);
+      break;
+    }
+    default: {
+      sqlite3_result_null(ctx);
+      break;
+    }
+  }
+  return SQLITE_OK;
+}
+
+/*
+** The rowid.
+*/
+static int amatchRowid(sqlite3_vtab_cursor *cur, sqlite_int64 *pRowid){
+  amatch_cursor *pCur = (amatch_cursor*)cur;
+  *pRowid = pCur->iRowid;
+  return SQLITE_OK;
+}
+
+/*
+** EOF indicator
+*/
+static int amatchEof(sqlite3_vtab_cursor *cur){
+  amatch_cursor *pCur = (amatch_cursor*)cur;
+  return pCur->pCurrent==0;
+}
+
+/*
+** Search for terms of these forms:
+**
+**   (A)    word MATCH $str
+**   (B1)   distance < $value
+**   (B2)   distance <= $value
+**   (C)    language == $language
+**
+** The distance< and distance<= are both treated as distance<=.
+** The query plan number is a bit vector:
+**
+**   bit 1:   Term of the form (A) found
+**   bit 2:   Term like (B1) or (B2) found
+**   bit 3:   Term like (C) found
+**
+** If bit-1 is set, $str is always in filter.argv[0].  If bit-2 is set
+** then $value is in filter.argv[0] if bit-1 is clear and is in 
+** filter.argv[1] if bit-1 is set.  If bit-3 is set, then $ruleid is
+** in filter.argv[0] if bit-1 and bit-2 are both zero, is in
+** filter.argv[1] if exactly one of bit-1 and bit-2 are set, and is in
+** filter.argv[2] if both bit-1 and bit-2 are set.
+*/
+static int amatchBestIndex(
+  sqlite3_vtab *tab,
+  sqlite3_index_info *pIdxInfo
+){
+  int iPlan = 0;
+  int iDistTerm = -1;
+  int iLangTerm = -1;
+  int i;
+  const struct sqlite3_index_constraint *pConstraint;
+
+  (void)tab;
+  pConstraint = pIdxInfo->aConstraint;
+  for(i=0; i<pIdxInfo->nConstraint; i++, pConstraint++){
+    if( pConstraint->usable==0 ) continue;
+    if( (iPlan & 1)==0 
+     && pConstraint->iColumn==0
+     && pConstraint->op==SQLITE_INDEX_CONSTRAINT_MATCH
+    ){
+      iPlan |= 1;
+      pIdxInfo->aConstraintUsage[i].argvIndex = 1;
+      pIdxInfo->aConstraintUsage[i].omit = 1;
+    }
+    if( (iPlan & 2)==0
+     && pConstraint->iColumn==1
+     && (pConstraint->op==SQLITE_INDEX_CONSTRAINT_LT
+           || pConstraint->op==SQLITE_INDEX_CONSTRAINT_LE)
+    ){
+      iPlan |= 2;
+      iDistTerm = i;
+    }
+    if( (iPlan & 4)==0
+     && pConstraint->iColumn==2
+     && pConstraint->op==SQLITE_INDEX_CONSTRAINT_EQ
+    ){
+      iPlan |= 4;
+      pIdxInfo->aConstraintUsage[i].omit = 1;
+      iLangTerm = i;
+    }
+  }
+  if( iPlan & 2 ){
+    pIdxInfo->aConstraintUsage[iDistTerm].argvIndex = 1+((iPlan&1)!=0);
+  }
+  if( iPlan & 4 ){
+    int idx = 1;
+    if( iPlan & 1 ) idx++;
+    if( iPlan & 2 ) idx++;
+    pIdxInfo->aConstraintUsage[iLangTerm].argvIndex = idx;
+  }
+  pIdxInfo->idxNum = iPlan;
+  if( pIdxInfo->nOrderBy==1
+   && pIdxInfo->aOrderBy[0].iColumn==1
+   && pIdxInfo->aOrderBy[0].desc==0
+  ){
+    pIdxInfo->orderByConsumed = 1;
+  }
+  pIdxInfo->estimatedCost = (double)10000;
+   
+  return SQLITE_OK;
+}
+
+/*
+** The xUpdate() method.  
+**
+** This implementation disallows DELETE and UPDATE.  The only thing
+** allowed is INSERT into the "command" column.
+*/
+static int amatchUpdate(
+  sqlite3_vtab *pVTab,
+  int argc,
+  sqlite3_value **argv,
+  sqlite_int64 *pRowid
+){
+  amatch_vtab *p = (amatch_vtab*)pVTab;
+  const unsigned char *zCmd;
+  (void)pRowid;
+  if( argc==1 ){
+    pVTab->zErrMsg = sqlite3_mprintf("DELETE from %s is not allowed", 
+                                      p->zSelf);
+    return SQLITE_ERROR;
+  }
+  if( sqlite3_value_type(argv[0])!=SQLITE_NULL ){
+    pVTab->zErrMsg = sqlite3_mprintf("UPDATE of %s is not allowed", 
+                                      p->zSelf);
+    return SQLITE_ERROR;
+  }
+  if( sqlite3_value_type(argv[2+AMATCH_COL_WORD])!=SQLITE_NULL
+   || sqlite3_value_type(argv[2+AMATCH_COL_DISTANCE])!=SQLITE_NULL
+   || sqlite3_value_type(argv[2+AMATCH_COL_LANGUAGE])!=SQLITE_NULL
+  ){
+    pVTab->zErrMsg = sqlite3_mprintf(
+            "INSERT INTO %s allowed for column [command] only", p->zSelf);
+    return SQLITE_ERROR;
+  }
+  zCmd = sqlite3_value_text(argv[2+AMATCH_COL_COMMAND]);
+  if( zCmd==0 ) return SQLITE_OK;
+  
+  return SQLITE_OK;
+}
+
+/*
+** A virtual table module that implements the "approximate_match".
+*/
+static sqlite3_module amatchModule = {
+  0,                      /* iVersion */
+  amatchConnect,          /* xCreate */
+  amatchConnect,          /* xConnect */
+  amatchBestIndex,        /* xBestIndex */
+  amatchDisconnect,       /* xDisconnect */
+  amatchDisconnect,       /* xDestroy */
+  amatchOpen,             /* xOpen - open a cursor */
+  amatchClose,            /* xClose - close a cursor */
+  amatchFilter,           /* xFilter - configure scan constraints */
+  amatchNext,             /* xNext - advance a cursor */
+  amatchEof,              /* xEof - check for end of scan */
+  amatchColumn,           /* xColumn - read data */
+  amatchRowid,            /* xRowid - read data */
+  amatchUpdate,           /* xUpdate */
+  0,                      /* xBegin */
+  0,                      /* xSync */
+  0,                      /* xCommit */
+  0,                      /* xRollback */
+  0,                      /* xFindMethod */
+  0,                      /* xRename */
+  0,                      /* xSavepoint */
+  0,                      /* xRelease */
+  0,                      /* xRollbackTo */
+  0,                      /* xShadowName */
+  0                       /* xIntegrity */
+};
+
+#endif /* SQLITE_OMIT_VIRTUALTABLE */
+
+/*
+** Register the amatch virtual table
+*/
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_amatch_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  int rc = SQLITE_OK;
+  SQLITE_EXTENSION_INIT2(pApi);
+  (void)pzErrMsg;  /* Not used */
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+  rc = sqlite3_create_module(db, "approximate_match", &amatchModule, 0);
+#endif /* SQLITE_OMIT_VIRTUALTABLE */
+  return rc;
+}
diff --git a/ext/misc/anycollseq.c b/ext/misc/anycollseq.c
new file mode 100644
index 0000000000000000000000000000000000000000..27b7049d5fececb4b7413fc076a06b422212cbb9
--- /dev/null
+++ b/ext/misc/anycollseq.c
@@ -0,0 +1,58 @@
+/*
+** 2017-04-16
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** This file implements a run-time loadable extension to SQLite that
+** registers a sqlite3_collation_needed() callback to register a fake
+** collating function for any unknown collating sequence.  The fake
+** collating function works like BINARY.
+**
+** This extension can be used to load schemas that contain one or more
+** unknown collating sequences.
+*/
+#include "sqlite3ext.h"
+SQLITE_EXTENSION_INIT1
+#include <string.h>
+
+static int anyCollFunc(
+  void *NotUsed,
+  int nKey1, const void *pKey1,
+  int nKey2, const void *pKey2
+){
+  int rc, n;
+  n = nKey1<nKey2 ? nKey1 : nKey2;
+  rc = memcmp(pKey1, pKey2, n);
+  if( rc==0 ) rc = nKey1 - nKey2;
+  return rc;
+}
+
+static void anyCollNeeded(
+  void *NotUsed,
+  sqlite3 *db,
+  int eTextRep,
+  const char *zCollName
+){
+  sqlite3_create_collation(db, zCollName, eTextRep, 0, anyCollFunc); 
+}
+
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_anycollseq_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  int rc = SQLITE_OK;
+  SQLITE_EXTENSION_INIT2(pApi);
+  rc = sqlite3_collation_needed(db, 0, anyCollNeeded);
+  return rc;
+}
diff --git a/ext/misc/appendvfs.c b/ext/misc/appendvfs.c
new file mode 100644
index 0000000000000000000000000000000000000000..eb9ed01f62e38d725f7fc56d4eda4a047044f0d2
--- /dev/null
+++ b/ext/misc/appendvfs.c
@@ -0,0 +1,672 @@
+/*
+** 2017-10-20
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This file implements a VFS shim that allows an SQLite database to be
+** appended onto the end of some other file, such as an executable.
+**
+** A special record must appear at the end of the file that identifies the
+** file as an appended database and provides the offset to the first page
+** of the exposed content. (Or, it is the length of the content prefix.)
+** For best performance page 1 should be located at a disk page boundary,
+** though that is not required.
+**
+** When opening a database using this VFS, the connection might treat
+** the file as an ordinary SQLite database, or it might treat it as a
+** database appended onto some other file.  The decision is made by
+** applying the following rules in order:
+**
+**  (1)  An empty file is an ordinary database.
+**
+**  (2)  If the file ends with the appendvfs trailer string
+**       "Start-Of-SQLite3-NNNNNNNN" that file is an appended database.
+**
+**  (3)  If the file begins with the standard SQLite prefix string
+**       "SQLite format 3", that file is an ordinary database.
+**
+**  (4)  If none of the above apply and the SQLITE_OPEN_CREATE flag is
+**       set, then a new database is appended to the already existing file.
+**
+**  (5)  Otherwise, SQLITE_CANTOPEN is returned.
+**
+** To avoid unnecessary complications with the PENDING_BYTE, the size of
+** the file containing the database is limited to 1GiB. (1073741824 bytes)
+** This VFS will not read or write past the 1GiB mark.  This restriction
+** might be lifted in future versions.  For now, if you need a larger
+** database, then keep it in a separate file.
+**
+** If the file being opened is a plain database (not an appended one), then
+** this shim is a pass-through into the default underlying VFS. (rule 3)
+**/
+#include "sqlite3ext.h"
+SQLITE_EXTENSION_INIT1
+#include <string.h>
+#include <assert.h>
+
+/* The append mark at the end of the database is:
+**
+**     Start-Of-SQLite3-NNNNNNNN
+**     123456789 123456789 12345
+**
+** The NNNNNNNN represents a 64-bit big-endian unsigned integer which is
+** the offset to page 1, and also the length of the prefix content.
+*/
+#define APND_MARK_PREFIX     "Start-Of-SQLite3-"
+#define APND_MARK_PREFIX_SZ  17
+#define APND_MARK_FOS_SZ      8
+#define APND_MARK_SIZE       (APND_MARK_PREFIX_SZ+APND_MARK_FOS_SZ)
+
+/*
+** Maximum size of the combined prefix + database + append-mark.  This
+** must be less than 0x40000000 to avoid locking issues on Windows.
+*/
+#define APND_MAX_SIZE  (0x40000000)
+
+/*
+** Try to align the database to an even multiple of APND_ROUNDUP bytes.
+*/
+#ifndef APND_ROUNDUP
+#define APND_ROUNDUP 4096
+#endif
+#define APND_ALIGN_MASK         ((sqlite3_int64)(APND_ROUNDUP-1))
+#define APND_START_ROUNDUP(fsz) (((fsz)+APND_ALIGN_MASK) & ~APND_ALIGN_MASK)
+
+/*
+** Forward declaration of objects used by this utility
+*/
+typedef struct sqlite3_vfs ApndVfs;
+typedef struct ApndFile ApndFile;
+
+/* Access to a lower-level VFS that (might) implement dynamic loading,
+** access to randomness, etc.
+*/
+#define ORIGVFS(p)  ((sqlite3_vfs*)((p)->pAppData))
+#define ORIGFILE(p) ((sqlite3_file*)(((ApndFile*)(p))+1))
+
+/* An open appendvfs file
+**
+** An instance of this structure describes the appended database file.
+** A separate sqlite3_file object is always appended. The appended
+** sqlite3_file object (which can be accessed using ORIGFILE()) describes
+** the entire file, including the prefix, the database, and the
+** append-mark.
+**
+** The structure of an AppendVFS database is like this:
+**
+**   +-------------+---------+----------+-------------+
+**   | prefix-file | padding | database | append-mark |
+**   +-------------+---------+----------+-------------+
+**                           ^          ^
+**                           |          |
+**                         iPgOne      iMark
+**
+**
+** "prefix file" -  file onto which the database has been appended.
+** "padding"     -  zero or more bytes inserted so that "database"
+**                  starts on an APND_ROUNDUP boundary
+** "database"    -  The SQLite database file
+** "append-mark" -  The 25-byte "Start-Of-SQLite3-NNNNNNNN" that indicates
+**                  the offset from the start of prefix-file to the start
+**                  of "database".
+**
+** The size of the database is iMark - iPgOne.
+**
+** The NNNNNNNN in the "Start-Of-SQLite3-NNNNNNNN" suffix is the value
+** of iPgOne stored as a big-ending 64-bit integer.
+**
+** iMark will be the size of the underlying file minus 25 (APND_MARKSIZE).
+** Or, iMark is -1 to indicate that it has not yet been written.
+*/
+struct ApndFile {
+  sqlite3_file base;        /* Subclass.  MUST BE FIRST! */
+  sqlite3_int64 iPgOne;     /* Offset to the start of the database */
+  sqlite3_int64 iMark;      /* Offset of the append mark.  -1 if unwritten */
+  /* Always followed by another sqlite3_file that describes the whole file */
+};
+
+/*
+** Methods for ApndFile
+*/
+static int apndClose(sqlite3_file*);
+static int apndRead(sqlite3_file*, void*, int iAmt, sqlite3_int64 iOfst);
+static int apndWrite(sqlite3_file*,const void*,int iAmt, sqlite3_int64 iOfst);
+static int apndTruncate(sqlite3_file*, sqlite3_int64 size);
+static int apndSync(sqlite3_file*, int flags);
+static int apndFileSize(sqlite3_file*, sqlite3_int64 *pSize);
+static int apndLock(sqlite3_file*, int);
+static int apndUnlock(sqlite3_file*, int);
+static int apndCheckReservedLock(sqlite3_file*, int *pResOut);
+static int apndFileControl(sqlite3_file*, int op, void *pArg);
+static int apndSectorSize(sqlite3_file*);
+static int apndDeviceCharacteristics(sqlite3_file*);
+static int apndShmMap(sqlite3_file*, int iPg, int pgsz, int, void volatile**);
+static int apndShmLock(sqlite3_file*, int offset, int n, int flags);
+static void apndShmBarrier(sqlite3_file*);
+static int apndShmUnmap(sqlite3_file*, int deleteFlag);
+static int apndFetch(sqlite3_file*, sqlite3_int64 iOfst, int iAmt, void **pp);
+static int apndUnfetch(sqlite3_file*, sqlite3_int64 iOfst, void *p);
+
+/*
+** Methods for ApndVfs
+*/
+static int apndOpen(sqlite3_vfs*, const char *, sqlite3_file*, int , int *);
+static int apndDelete(sqlite3_vfs*, const char *zName, int syncDir);
+static int apndAccess(sqlite3_vfs*, const char *zName, int flags, int *);
+static int apndFullPathname(sqlite3_vfs*, const char *zName, int, char *zOut);
+static void *apndDlOpen(sqlite3_vfs*, const char *zFilename);
+static void apndDlError(sqlite3_vfs*, int nByte, char *zErrMsg);
+static void (*apndDlSym(sqlite3_vfs *pVfs, void *p, const char*zSym))(void);
+static void apndDlClose(sqlite3_vfs*, void*);
+static int apndRandomness(sqlite3_vfs*, int nByte, char *zOut);
+static int apndSleep(sqlite3_vfs*, int microseconds);
+static int apndCurrentTime(sqlite3_vfs*, double*);
+static int apndGetLastError(sqlite3_vfs*, int, char *);
+static int apndCurrentTimeInt64(sqlite3_vfs*, sqlite3_int64*);
+static int apndSetSystemCall(sqlite3_vfs*, const char*,sqlite3_syscall_ptr);
+static sqlite3_syscall_ptr apndGetSystemCall(sqlite3_vfs*, const char *z);
+static const char *apndNextSystemCall(sqlite3_vfs*, const char *zName);
+
+static sqlite3_vfs apnd_vfs = {
+  3,                            /* iVersion (set when registered) */
+  0,                            /* szOsFile (set when registered) */
+  1024,                         /* mxPathname */
+  0,                            /* pNext */
+  "apndvfs",                    /* zName */
+  0,                            /* pAppData (set when registered) */ 
+  apndOpen,                     /* xOpen */
+  apndDelete,                   /* xDelete */
+  apndAccess,                   /* xAccess */
+  apndFullPathname,             /* xFullPathname */
+  apndDlOpen,                   /* xDlOpen */
+  apndDlError,                  /* xDlError */
+  apndDlSym,                    /* xDlSym */
+  apndDlClose,                  /* xDlClose */
+  apndRandomness,               /* xRandomness */
+  apndSleep,                    /* xSleep */
+  apndCurrentTime,              /* xCurrentTime */
+  apndGetLastError,             /* xGetLastError */
+  apndCurrentTimeInt64,         /* xCurrentTimeInt64 */
+  apndSetSystemCall,            /* xSetSystemCall */
+  apndGetSystemCall,            /* xGetSystemCall */
+  apndNextSystemCall            /* xNextSystemCall */
+};
+
+static const sqlite3_io_methods apnd_io_methods = {
+  3,                              /* iVersion */
+  apndClose,                      /* xClose */
+  apndRead,                       /* xRead */
+  apndWrite,                      /* xWrite */
+  apndTruncate,                   /* xTruncate */
+  apndSync,                       /* xSync */
+  apndFileSize,                   /* xFileSize */
+  apndLock,                       /* xLock */
+  apndUnlock,                     /* xUnlock */
+  apndCheckReservedLock,          /* xCheckReservedLock */
+  apndFileControl,                /* xFileControl */
+  apndSectorSize,                 /* xSectorSize */
+  apndDeviceCharacteristics,      /* xDeviceCharacteristics */
+  apndShmMap,                     /* xShmMap */
+  apndShmLock,                    /* xShmLock */
+  apndShmBarrier,                 /* xShmBarrier */
+  apndShmUnmap,                   /* xShmUnmap */
+  apndFetch,                      /* xFetch */
+  apndUnfetch                     /* xUnfetch */
+};
+
+/*
+** Close an apnd-file.
+*/
+static int apndClose(sqlite3_file *pFile){
+  pFile = ORIGFILE(pFile);
+  return pFile->pMethods->xClose(pFile);
+}
+
+/*
+** Read data from an apnd-file.
+*/
+static int apndRead(
+  sqlite3_file *pFile, 
+  void *zBuf, 
+  int iAmt, 
+  sqlite_int64 iOfst
+){
+  ApndFile *paf = (ApndFile *)pFile;
+  pFile = ORIGFILE(pFile);
+  return pFile->pMethods->xRead(pFile, zBuf, iAmt, paf->iPgOne+iOfst);
+}
+
+/*
+** Add the append-mark onto what should become the end of the file.
+*  If and only if this succeeds, internal ApndFile.iMark is updated.
+*  Parameter iWriteEnd is the appendvfs-relative offset of the new mark.
+*/
+static int apndWriteMark(
+  ApndFile *paf,
+  sqlite3_file *pFile,
+  sqlite_int64 iWriteEnd
+){
+  sqlite_int64 iPgOne = paf->iPgOne;
+  unsigned char a[APND_MARK_SIZE];
+  int i = APND_MARK_FOS_SZ;
+  int rc;
+  assert(pFile == ORIGFILE(paf));
+  memcpy(a, APND_MARK_PREFIX, APND_MARK_PREFIX_SZ);
+  while( --i >= 0 ){
+    a[APND_MARK_PREFIX_SZ+i] = (unsigned char)(iPgOne & 0xff);
+    iPgOne >>= 8;
+  }
+  iWriteEnd += paf->iPgOne;
+  if( SQLITE_OK==(rc = pFile->pMethods->xWrite
+                  (pFile, a, APND_MARK_SIZE, iWriteEnd)) ){
+    paf->iMark = iWriteEnd;
+  }
+  return rc;
+}
+
+/*
+** Write data to an apnd-file.
+*/
+static int apndWrite(
+  sqlite3_file *pFile,
+  const void *zBuf,
+  int iAmt,
+  sqlite_int64 iOfst
+){
+  ApndFile *paf = (ApndFile *)pFile;
+  sqlite_int64 iWriteEnd = iOfst + iAmt;
+  if( iWriteEnd>=APND_MAX_SIZE ) return SQLITE_FULL;
+  pFile = ORIGFILE(pFile);
+  /* If append-mark is absent or will be overwritten, write it. */
+  if( paf->iMark < 0 || paf->iPgOne + iWriteEnd > paf->iMark ){
+    int rc = apndWriteMark(paf, pFile, iWriteEnd);
+    if( SQLITE_OK!=rc ) return rc;
+  }
+  return pFile->pMethods->xWrite(pFile, zBuf, iAmt, paf->iPgOne+iOfst);
+}
+
+/*
+** Truncate an apnd-file.
+*/
+static int apndTruncate(sqlite3_file *pFile, sqlite_int64 size){
+  ApndFile *paf = (ApndFile *)pFile;
+  pFile = ORIGFILE(pFile);
+  /* The append mark goes out first so truncate failure does not lose it. */
+  if( SQLITE_OK!=apndWriteMark(paf, pFile, size) ) return SQLITE_IOERR;
+  /* Truncate underlying file just past append mark */
+  return pFile->pMethods->xTruncate(pFile, paf->iMark+APND_MARK_SIZE);
+}
+
+/*
+** Sync an apnd-file.
+*/
+static int apndSync(sqlite3_file *pFile, int flags){
+  pFile = ORIGFILE(pFile);
+  return pFile->pMethods->xSync(pFile, flags);
+}
+
+/*
+** Return the current file-size of an apnd-file.
+** If the append mark is not yet there, the file-size is 0.
+*/
+static int apndFileSize(sqlite3_file *pFile, sqlite_int64 *pSize){
+  ApndFile *paf = (ApndFile *)pFile;
+  *pSize = ( paf->iMark >= 0 )? (paf->iMark - paf->iPgOne) : 0;
+  return SQLITE_OK;
+}
+
+/*
+** Lock an apnd-file.
+*/
+static int apndLock(sqlite3_file *pFile, int eLock){
+  pFile = ORIGFILE(pFile);
+  return pFile->pMethods->xLock(pFile, eLock);
+}
+
+/*
+** Unlock an apnd-file.
+*/
+static int apndUnlock(sqlite3_file *pFile, int eLock){
+  pFile = ORIGFILE(pFile);
+  return pFile->pMethods->xUnlock(pFile, eLock);
+}
+
+/*
+** Check if another file-handle holds a RESERVED lock on an apnd-file.
+*/
+static int apndCheckReservedLock(sqlite3_file *pFile, int *pResOut){
+  pFile = ORIGFILE(pFile);
+  return pFile->pMethods->xCheckReservedLock(pFile, pResOut);
+}
+
+/*
+** File control method. For custom operations on an apnd-file.
+*/
+static int apndFileControl(sqlite3_file *pFile, int op, void *pArg){
+  ApndFile *paf = (ApndFile *)pFile;
+  int rc;
+  pFile = ORIGFILE(pFile);
+  if( op==SQLITE_FCNTL_SIZE_HINT ) *(sqlite3_int64*)pArg += paf->iPgOne;
+  rc = pFile->pMethods->xFileControl(pFile, op, pArg);
+  if( rc==SQLITE_OK && op==SQLITE_FCNTL_VFSNAME ){
+    *(char**)pArg = sqlite3_mprintf("apnd(%lld)/%z", paf->iPgOne,*(char**)pArg);
+  }
+  return rc;
+}
+
+/*
+** Return the sector-size in bytes for an apnd-file.
+*/
+static int apndSectorSize(sqlite3_file *pFile){
+  pFile = ORIGFILE(pFile);
+  return pFile->pMethods->xSectorSize(pFile);
+}
+
+/*
+** Return the device characteristic flags supported by an apnd-file.
+*/
+static int apndDeviceCharacteristics(sqlite3_file *pFile){
+  pFile = ORIGFILE(pFile);
+  return pFile->pMethods->xDeviceCharacteristics(pFile);
+}
+
+/* Create a shared memory file mapping */
+static int apndShmMap(
+  sqlite3_file *pFile,
+  int iPg,
+  int pgsz,
+  int bExtend,
+  void volatile **pp
+){
+  pFile = ORIGFILE(pFile);
+  return pFile->pMethods->xShmMap(pFile,iPg,pgsz,bExtend,pp);
+}
+
+/* Perform locking on a shared-memory segment */
+static int apndShmLock(sqlite3_file *pFile, int offset, int n, int flags){
+  pFile = ORIGFILE(pFile);
+  return pFile->pMethods->xShmLock(pFile,offset,n,flags);
+}
+
+/* Memory barrier operation on shared memory */
+static void apndShmBarrier(sqlite3_file *pFile){
+  pFile = ORIGFILE(pFile);
+  pFile->pMethods->xShmBarrier(pFile);
+}
+
+/* Unmap a shared memory segment */
+static int apndShmUnmap(sqlite3_file *pFile, int deleteFlag){
+  pFile = ORIGFILE(pFile);
+  return pFile->pMethods->xShmUnmap(pFile,deleteFlag);
+}
+
+/* Fetch a page of a memory-mapped file */
+static int apndFetch(
+  sqlite3_file *pFile,
+  sqlite3_int64 iOfst,
+  int iAmt,
+  void **pp
+){
+  ApndFile *p = (ApndFile *)pFile;
+  if( p->iMark < 0 || iOfst+iAmt > p->iMark ){
+    return SQLITE_IOERR; /* Cannot read what is not yet there. */
+  }
+  pFile = ORIGFILE(pFile);
+  return pFile->pMethods->xFetch(pFile, iOfst+p->iPgOne, iAmt, pp);
+}
+
+/* Release a memory-mapped page */
+static int apndUnfetch(sqlite3_file *pFile, sqlite3_int64 iOfst, void *pPage){
+  ApndFile *p = (ApndFile *)pFile;
+  pFile = ORIGFILE(pFile);
+  return pFile->pMethods->xUnfetch(pFile, iOfst+p->iPgOne, pPage);
+}
+
+/*
+** Try to read the append-mark off the end of a file.  Return the
+** start of the appended database if the append-mark is present.
+** If there is no valid append-mark, return -1;
+**
+** An append-mark is only valid if the NNNNNNNN start-of-database offset
+** indicates that the appended database contains at least one page.  The
+** start-of-database value must be a multiple of 512.
+*/
+static sqlite3_int64 apndReadMark(sqlite3_int64 sz, sqlite3_file *pFile){
+  int rc, i;
+  sqlite3_int64 iMark;
+  int msbs = 8 * (APND_MARK_FOS_SZ-1);
+  unsigned char a[APND_MARK_SIZE];
+
+  if( APND_MARK_SIZE!=(sz & 0x1ff) ) return -1;
+  rc = pFile->pMethods->xRead(pFile, a, APND_MARK_SIZE, sz-APND_MARK_SIZE);
+  if( rc ) return -1;
+  if( memcmp(a, APND_MARK_PREFIX, APND_MARK_PREFIX_SZ)!=0 ) return -1;
+  iMark = ((sqlite3_int64)(a[APND_MARK_PREFIX_SZ] & 0x7f)) << msbs;
+  for(i=1; i<8; i++){
+    msbs -= 8;
+    iMark |= (sqlite3_int64)a[APND_MARK_PREFIX_SZ+i]<<msbs;
+  }
+  if( iMark > (sz - APND_MARK_SIZE - 512) ) return -1;
+  if( iMark & 0x1ff ) return -1;
+  return iMark;
+}
+
+static const char apvfsSqliteHdr[] = "SQLite format 3";
+/*
+** Check to see if the file is an appendvfs SQLite database file.
+** Return true iff it is such. Parameter sz is the file's size.
+*/
+static int apndIsAppendvfsDatabase(sqlite3_int64 sz, sqlite3_file *pFile){
+  int rc;
+  char zHdr[16];
+  sqlite3_int64 iMark = apndReadMark(sz, pFile);
+  if( iMark>=0 ){
+    /* If file has the correct end-marker, the expected odd size, and the
+    ** SQLite DB type marker where the end-marker puts it, then it
+    ** is an appendvfs database.
+    */
+    rc = pFile->pMethods->xRead(pFile, zHdr, sizeof(zHdr), iMark);
+    if( SQLITE_OK==rc
+     && memcmp(zHdr, apvfsSqliteHdr, sizeof(zHdr))==0
+     && (sz & 0x1ff) == APND_MARK_SIZE
+     && sz>=512+APND_MARK_SIZE
+    ){
+      return 1; /* It's an appendvfs database */
+    }
+  }
+  return 0;
+}
+
+/*
+** Check to see if the file is an ordinary SQLite database file.
+** Return true iff so. Parameter sz is the file's size.
+*/
+static int apndIsOrdinaryDatabaseFile(sqlite3_int64 sz, sqlite3_file *pFile){
+  char zHdr[16];
+  if( apndIsAppendvfsDatabase(sz, pFile) /* rule 2 */
+   || (sz & 0x1ff) != 0
+   || SQLITE_OK!=pFile->pMethods->xRead(pFile, zHdr, sizeof(zHdr), 0)
+   || memcmp(zHdr, apvfsSqliteHdr, sizeof(zHdr))!=0
+  ){
+    return 0;
+  }else{
+    return 1;
+  }
+}
+
+/*
+** Open an apnd file handle.
+*/
+static int apndOpen(
+  sqlite3_vfs *pApndVfs,
+  const char *zName,
+  sqlite3_file *pFile,
+  int flags,
+  int *pOutFlags
+){
+  ApndFile *pApndFile = (ApndFile*)pFile;
+  sqlite3_file *pBaseFile = ORIGFILE(pFile);
+  sqlite3_vfs *pBaseVfs = ORIGVFS(pApndVfs);
+  int rc;
+  sqlite3_int64 sz = 0;
+  if( (flags & SQLITE_OPEN_MAIN_DB)==0 ){
+    /* The appendvfs is not to be used for transient or temporary databases.
+    ** Just use the base VFS open to initialize the given file object and
+    ** open the underlying file. (Appendvfs is then unused for this file.)
+    */
+    return pBaseVfs->xOpen(pBaseVfs, zName, pFile, flags, pOutFlags);
+  }
+  memset(pApndFile, 0, sizeof(ApndFile));
+  pFile->pMethods = &apnd_io_methods;
+  pApndFile->iMark = -1;    /* Append mark not yet written */
+
+  rc = pBaseVfs->xOpen(pBaseVfs, zName, pBaseFile, flags, pOutFlags);
+  if( rc==SQLITE_OK ){
+    rc = pBaseFile->pMethods->xFileSize(pBaseFile, &sz);
+    if( rc ){
+      pBaseFile->pMethods->xClose(pBaseFile);
+    }
+  }
+  if( rc ){
+    pFile->pMethods = 0;
+    return rc;
+  }
+  if( apndIsOrdinaryDatabaseFile(sz, pBaseFile) ){
+    /* The file being opened appears to be just an ordinary DB. Copy
+    ** the base dispatch-table so this instance mimics the base VFS. 
+    */
+    memmove(pApndFile, pBaseFile, pBaseVfs->szOsFile);
+    return SQLITE_OK;
+  }
+  pApndFile->iPgOne = apndReadMark(sz, pFile);
+  if( pApndFile->iPgOne>=0 ){
+    pApndFile->iMark = sz - APND_MARK_SIZE; /* Append mark found */
+    return SQLITE_OK;
+  }
+  if( (flags & SQLITE_OPEN_CREATE)==0 ){
+    pBaseFile->pMethods->xClose(pBaseFile);
+    rc = SQLITE_CANTOPEN;
+    pFile->pMethods = 0;
+  }else{
+    /* Round newly added appendvfs location to #define'd page boundary. 
+    ** Note that nothing has yet been written to the underlying file.
+    ** The append mark will be written along with first content write.
+    ** Until then, paf->iMark value indicates it is not yet written.
+    */
+    pApndFile->iPgOne = APND_START_ROUNDUP(sz);
+  }
+  return rc;
+}
+
+/*
+** Delete an apnd file.
+** For an appendvfs, this could mean delete the appendvfs portion,
+** leaving the appendee as it was before it gained an appendvfs.
+** For now, this code deletes the underlying file too.
+*/
+static int apndDelete(sqlite3_vfs *pVfs, const char *zPath, int dirSync){
+  return ORIGVFS(pVfs)->xDelete(ORIGVFS(pVfs), zPath, dirSync);
+}
+
+/*
+** All other VFS methods are pass-thrus.
+*/
+static int apndAccess(
+  sqlite3_vfs *pVfs, 
+  const char *zPath, 
+  int flags, 
+  int *pResOut
+){
+  return ORIGVFS(pVfs)->xAccess(ORIGVFS(pVfs), zPath, flags, pResOut);
+}
+static int apndFullPathname(
+  sqlite3_vfs *pVfs, 
+  const char *zPath, 
+  int nOut, 
+  char *zOut
+){
+  return ORIGVFS(pVfs)->xFullPathname(ORIGVFS(pVfs),zPath,nOut,zOut);
+}
+static void *apndDlOpen(sqlite3_vfs *pVfs, const char *zPath){
+  return ORIGVFS(pVfs)->xDlOpen(ORIGVFS(pVfs), zPath);
+}
+static void apndDlError(sqlite3_vfs *pVfs, int nByte, char *zErrMsg){
+  ORIGVFS(pVfs)->xDlError(ORIGVFS(pVfs), nByte, zErrMsg);
+}
+static void (*apndDlSym(sqlite3_vfs *pVfs, void *p, const char *zSym))(void){
+  return ORIGVFS(pVfs)->xDlSym(ORIGVFS(pVfs), p, zSym);
+}
+static void apndDlClose(sqlite3_vfs *pVfs, void *pHandle){
+  ORIGVFS(pVfs)->xDlClose(ORIGVFS(pVfs), pHandle);
+}
+static int apndRandomness(sqlite3_vfs *pVfs, int nByte, char *zBufOut){
+  return ORIGVFS(pVfs)->xRandomness(ORIGVFS(pVfs), nByte, zBufOut);
+}
+static int apndSleep(sqlite3_vfs *pVfs, int nMicro){
+  return ORIGVFS(pVfs)->xSleep(ORIGVFS(pVfs), nMicro);
+}
+static int apndCurrentTime(sqlite3_vfs *pVfs, double *pTimeOut){
+  return ORIGVFS(pVfs)->xCurrentTime(ORIGVFS(pVfs), pTimeOut);
+}
+static int apndGetLastError(sqlite3_vfs *pVfs, int a, char *b){
+  return ORIGVFS(pVfs)->xGetLastError(ORIGVFS(pVfs), a, b);
+}
+static int apndCurrentTimeInt64(sqlite3_vfs *pVfs, sqlite3_int64 *p){
+  return ORIGVFS(pVfs)->xCurrentTimeInt64(ORIGVFS(pVfs), p);
+}
+static int apndSetSystemCall(
+  sqlite3_vfs *pVfs,
+  const char *zName,
+  sqlite3_syscall_ptr pCall
+){
+  return ORIGVFS(pVfs)->xSetSystemCall(ORIGVFS(pVfs),zName,pCall);
+}
+static sqlite3_syscall_ptr apndGetSystemCall(
+  sqlite3_vfs *pVfs,
+  const char *zName
+){
+  return ORIGVFS(pVfs)->xGetSystemCall(ORIGVFS(pVfs),zName);
+}
+static const char *apndNextSystemCall(sqlite3_vfs *pVfs, const char *zName){
+  return ORIGVFS(pVfs)->xNextSystemCall(ORIGVFS(pVfs), zName);
+}
+
+  
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+/* 
+** This routine is called when the extension is loaded.
+** Register the new VFS.
+*/
+int sqlite3_appendvfs_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  int rc = SQLITE_OK;
+  sqlite3_vfs *pOrig;
+  SQLITE_EXTENSION_INIT2(pApi);
+  (void)pzErrMsg;
+  (void)db;
+  pOrig = sqlite3_vfs_find(0);
+  if( pOrig==0 ) return SQLITE_ERROR;
+  apnd_vfs.iVersion = pOrig->iVersion;
+  apnd_vfs.pAppData = pOrig;
+  apnd_vfs.szOsFile = pOrig->szOsFile + sizeof(ApndFile);
+  rc = sqlite3_vfs_register(&apnd_vfs, 0);
+#ifdef APPENDVFS_TEST
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_auto_extension((void(*)(void))apndvfsRegister);
+  }
+#endif
+  if( rc==SQLITE_OK ) rc = SQLITE_OK_LOAD_PERMANENTLY;
+  return rc;
+}
diff --git a/ext/misc/base64.c b/ext/misc/base64.c
new file mode 100644
index 0000000000000000000000000000000000000000..bc7a976abcf905b555fee14a73ae1b738a140bdb
--- /dev/null
+++ b/ext/misc/base64.c
@@ -0,0 +1,292 @@
+/*
+** 2022-11-18
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** This is a SQLite extension for converting in either direction
+** between a (binary) blob and base64 text. Base64 can transit a
+** sane USASCII channel unmolested. It also plays nicely in CSV or
+** written as TCL brace-enclosed literals or SQL string literals,
+** and can be used unmodified in XML-like documents.
+**
+** This is an independent implementation of conversions specified in
+** RFC 4648, done on the above date by the author (Larry Brasfield)
+** who thereby has the right to put this into the public domain.
+**
+** The conversions meet RFC 4648 requirements, provided that this
+** C source specifies that line-feeds are included in the encoded
+** data to limit visible line lengths to 72 characters and to
+** terminate any encoded blob having non-zero length.
+**
+** Length limitations are not imposed except that the runtime
+** SQLite string or blob length limits are respected. Otherwise,
+** any length binary sequence can be represented and recovered.
+** Generated base64 sequences, with their line-feeds included,
+** can be concatenated; the result converted back to binary will
+** be the concatenation of the represented binary sequences.
+**
+** This SQLite3 extension creates a function, base64(x), which
+** either: converts text x containing base64 to a returned blob;
+** or converts a blob x to returned text containing base64. An
+** error will be thrown for other input argument types.
+**
+** This code relies on UTF-8 encoding only with respect to the
+** meaning of the first 128 (7-bit) codes matching that of USASCII.
+** It will fail miserably if somehow made to try to convert EBCDIC.
+** Because it is table-driven, it could be enhanced to handle that,
+** but the world and SQLite have moved on from that anachronism.
+**
+** To build the extension:
+** Set shell variable SQDIR=<your favorite SQLite checkout directory>
+** *Nix: gcc -O2 -shared -I$SQDIR -fPIC -o base64.so base64.c
+** OSX: gcc -O2 -dynamiclib -fPIC -I$SQDIR -o base64.dylib base64.c
+** Win32: gcc -O2 -shared -I%SQDIR% -o base64.dll base64.c
+** Win32: cl /Os -I%SQDIR% base64.c -link -dll -out:base64.dll
+*/
+
+#include <assert.h>
+
+#include "sqlite3ext.h"
+
+#ifndef deliberate_fall_through
+/* Quiet some compilers about some of our intentional code. */
+# if GCC_VERSION>=7000000
+#  define deliberate_fall_through __attribute__((fallthrough));
+# else
+#  define deliberate_fall_through
+# endif
+#endif
+
+SQLITE_EXTENSION_INIT1;
+
+#define PC 0x80 /* pad character */
+#define WS 0x81 /* whitespace */
+#define ND 0x82 /* Not above or digit-value */
+#define PAD_CHAR '='
+
+#ifndef U8_TYPEDEF
+typedef unsigned char u8;
+#define U8_TYPEDEF
+#endif
+
+/* Decoding table, ASCII (7-bit) value to base 64 digit value or other */
+static const u8 b64DigitValues[128] = {
+  /*                             HT LF VT  FF CR       */
+    ND,ND,ND,ND, ND,ND,ND,ND, ND,WS,WS,WS, WS,WS,ND,ND,
+  /*                                                US */
+    ND,ND,ND,ND, ND,ND,ND,ND, ND,ND,ND,ND, ND,ND,ND,ND,
+  /*sp                                  +            / */
+    WS,ND,ND,ND, ND,ND,ND,ND, ND,ND,ND,62, ND,ND,ND,63,
+  /* 0  1            5            9            =       */
+    52,53,54,55, 56,57,58,59, 60,61,ND,ND, ND,PC,ND,ND,
+  /*    A                                            O */
+    ND, 0, 1, 2,  3, 4, 5, 6,  7, 8, 9,10, 11,12,13,14,
+  /* P                               Z                 */
+    15,16,17,18, 19,20,21,22, 23,24,25,ND, ND,ND,ND,ND,
+  /*    a                                            o */
+    ND,26,27,28, 29,30,31,32, 33,34,35,36, 37,38,39,40,
+  /* p                               z                 */
+    41,42,43,44, 45,46,47,48, 49,50,51,ND, ND,ND,ND,ND
+};
+
+static const char b64Numerals[64+1]
+= "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+
+#define BX_DV_PROTO(c) \
+  ((((u8)(c))<0x80)? (u8)(b64DigitValues[(u8)(c)]) : 0x80)
+#define IS_BX_DIGIT(bdp) (((u8)(bdp))<0x80)
+#define IS_BX_WS(bdp) ((bdp)==WS)
+#define IS_BX_PAD(bdp) ((bdp)==PC)
+#define BX_NUMERAL(dv) (b64Numerals[(u8)(dv)])
+/* Width of base64 lines. Should be an integer multiple of 4. */
+#define B64_DARK_MAX 72
+
+/* Encode a byte buffer into base64 text with linefeeds appended to limit
+** encoded group lengths to B64_DARK_MAX or to terminate the last group.
+*/
+static char* toBase64( u8 *pIn, int nbIn, char *pOut ){
+  int nCol = 0;
+  while( nbIn >= 3 ){
+    /* Do the bit-shuffle, exploiting unsigned input to avoid masking. */
+    pOut[0] = BX_NUMERAL(pIn[0]>>2);
+    pOut[1] = BX_NUMERAL(((pIn[0]<<4)|(pIn[1]>>4))&0x3f);
+    pOut[2] = BX_NUMERAL(((pIn[1]&0xf)<<2)|(pIn[2]>>6));
+    pOut[3] = BX_NUMERAL(pIn[2]&0x3f);
+    pOut += 4;
+    nbIn -= 3;
+    pIn += 3;
+    if( (nCol += 4)>=B64_DARK_MAX || nbIn<=0 ){
+      *pOut++ = '\n';
+      nCol = 0;
+    }
+  }
+  if( nbIn > 0 ){
+    signed char nco = nbIn+1;
+    int nbe;
+    unsigned long qv = *pIn++;
+    for( nbe=1; nbe<3; ++nbe ){
+      qv <<= 8;
+      if( nbe<nbIn ) qv |= *pIn++;
+    }
+    for( nbe=3; nbe>=0; --nbe ){
+      char ce = (nbe<nco)? BX_NUMERAL((u8)(qv & 0x3f)) : PAD_CHAR;
+      qv >>= 6;
+      pOut[nbe] = ce;
+    }
+    pOut += 4;
+    *pOut++ = '\n';
+  }
+  *pOut = 0;
+  return pOut;
+}
+
+/* Skip over text which is not base64 numeral(s). */
+static char * skipNonB64( char *s, int nc ){
+  char c;
+  while( nc-- > 0 && (c = *s) && !IS_BX_DIGIT(BX_DV_PROTO(c)) ) ++s;
+  return s;
+}
+
+/* Decode base64 text into a byte buffer. */
+static u8* fromBase64( char *pIn, int ncIn, u8 *pOut ){
+  if( ncIn>0 && pIn[ncIn-1]=='\n' ) --ncIn;
+  while( ncIn>0 && *pIn!=PAD_CHAR ){
+    static signed char nboi[] = { 0, 0, 1, 2, 3 };
+    char *pUse = skipNonB64(pIn, ncIn);
+    unsigned long qv = 0L;
+    int nti, nbo, nac;
+    ncIn -= (pUse - pIn);
+    pIn = pUse;
+    nti = (ncIn>4)? 4 : ncIn;
+    ncIn -= nti;
+    nbo = nboi[nti];
+    if( nbo==0 ) break;
+    for( nac=0; nac<4; ++nac ){
+      char c = (nac<nti)? *pIn++ : b64Numerals[0];
+      u8 bdp = BX_DV_PROTO(c);
+      switch( bdp ){
+      case ND:
+        /*  Treat dark non-digits as pad, but they terminate decode too. */
+        ncIn = 0;
+        deliberate_fall_through;
+      case WS:
+        /* Treat whitespace as pad and terminate this group.*/
+        nti = nac;
+        deliberate_fall_through;
+      case PC:
+        bdp = 0;
+        --nbo;
+        deliberate_fall_through;
+      default: /* bdp is the digit value. */
+        qv = qv<<6 | bdp;
+        break;
+      }
+    }
+    switch( nbo ){
+    case 3:
+      pOut[2] = (qv) & 0xff;
+    case 2:
+      pOut[1] = (qv>>8) & 0xff;
+    case 1:
+      pOut[0] = (qv>>16) & 0xff;
+    }
+    pOut += nbo;
+  }
+  return pOut;
+}
+
+/* This function does the work for the SQLite base64(x) UDF. */
+static void base64(sqlite3_context *context, int na, sqlite3_value *av[]){
+  int nb, nc, nv = sqlite3_value_bytes(av[0]);
+  int nvMax = sqlite3_limit(sqlite3_context_db_handle(context),
+                            SQLITE_LIMIT_LENGTH, -1);
+  char *cBuf;
+  u8 *bBuf;
+  assert(na==1);
+  switch( sqlite3_value_type(av[0]) ){
+  case SQLITE_BLOB:
+    nb = nv;
+    nc = 4*(nv+2/3); /* quads needed */
+    nc += (nc+(B64_DARK_MAX-1))/B64_DARK_MAX + 1; /* LFs and a 0-terminator */
+    if( nvMax < nc ){
+      sqlite3_result_error(context, "blob expanded to base64 too big", -1);
+      return;
+    }
+    bBuf = (u8*)sqlite3_value_blob(av[0]);
+    if( !bBuf ){
+      if( SQLITE_NOMEM==sqlite3_errcode(sqlite3_context_db_handle(context)) ){
+        goto memFail;
+      }
+      sqlite3_result_text(context,"",-1,SQLITE_STATIC);
+      break;
+    }
+    cBuf = sqlite3_malloc(nc);
+    if( !cBuf ) goto memFail;
+    nc = (int)(toBase64(bBuf, nb, cBuf) - cBuf);
+    sqlite3_result_text(context, cBuf, nc, sqlite3_free);
+    break;
+  case SQLITE_TEXT:
+    nc = nv;
+    nb = 3*((nv+3)/4); /* may overestimate due to LF and padding */
+    if( nvMax < nb ){
+      sqlite3_result_error(context, "blob from base64 may be too big", -1);
+      return;
+    }else if( nb<1 ){
+      nb = 1;
+    }
+    cBuf = (char *)sqlite3_value_text(av[0]);
+    if( !cBuf ){
+      if( SQLITE_NOMEM==sqlite3_errcode(sqlite3_context_db_handle(context)) ){
+        goto memFail;
+      }
+      sqlite3_result_zeroblob(context, 0);
+      break;
+    }
+    bBuf = sqlite3_malloc(nb);
+    if( !bBuf ) goto memFail;
+    nb = (int)(fromBase64(cBuf, nc, bBuf) - bBuf);
+    sqlite3_result_blob(context, bBuf, nb, sqlite3_free);
+    break;
+  default:
+    sqlite3_result_error(context, "base64 accepts only blob or text", -1);
+    return;
+  }
+  return;
+ memFail:
+  sqlite3_result_error(context, "base64 OOM", -1);
+}
+
+/*
+** Establish linkage to running SQLite library.
+*/
+#ifndef SQLITE_SHELL_EXTFUNCS
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_base_init
+#else
+static int sqlite3_base64_init
+#endif
+(sqlite3 *db, char **pzErr, const sqlite3_api_routines *pApi){
+  SQLITE_EXTENSION_INIT2(pApi);
+  (void)pzErr;
+  return sqlite3_create_function
+    (db, "base64", 1,
+     SQLITE_DETERMINISTIC|SQLITE_INNOCUOUS|SQLITE_DIRECTONLY|SQLITE_UTF8,
+     0, base64, 0, 0);
+}
+
+/*
+** Define some macros to allow this extension to be built into the shell
+** conveniently, in conjunction with use of SQLITE_SHELL_EXTFUNCS. This
+** allows shell.c, as distributed, to have this extension built in.
+*/
+#define BASE64_INIT(db) sqlite3_base64_init(db, 0, 0)
+#define BASE64_EXPOSE(db, pzErr) /* Not needed, ..._init() does this. */
diff --git a/ext/misc/base85.c b/ext/misc/base85.c
new file mode 100644
index 0000000000000000000000000000000000000000..e7ef0a04c97538bbc66faf56e3094804f7023dfd
--- /dev/null
+++ b/ext/misc/base85.c
@@ -0,0 +1,450 @@
+/*
+** 2022-11-16
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** This is a utility for converting binary to base85 or vice-versa.
+** It can be built as a standalone program or an SQLite3 extension.
+**
+** Much like base64 representations, base85 can be sent through a
+** sane USASCII channel unmolested. It also plays nicely in CSV or
+** written as TCL brace-enclosed literals or SQL string literals.
+** It is not suited for unmodified use in XML-like documents.
+**
+** The encoding used resembles Ascii85, but was devised by the author
+** (Larry Brasfield) before Mozilla, Adobe, ZMODEM or other Ascii85
+** variant sources existed, in the 1984 timeframe on a VAX mainframe.
+** Further, this is an independent implementation of a base85 system.
+** Hence, the author has rightfully put this into the public domain.
+**
+** Base85 numerals are taken from the set of 7-bit USASCII codes,
+** excluding control characters and Space ! " ' ( ) { | } ~ Del
+** in code order representing digit values 0 to 84 (base 10.)
+**
+** Groups of 4 bytes, interpreted as big-endian 32-bit values,
+** are represented as 5-digit base85 numbers with MS to LS digit
+** order. Groups of 1-3 bytes are represented with 2-4 digits,
+** still big-endian but 8-24 bit values. (Using big-endian yields
+** the simplest transition to byte groups smaller than 4 bytes.
+** These byte groups can also be considered base-256 numbers.)
+** Groups of 0 bytes are represented with 0 digits and vice-versa.
+** No pad characters are used; Encoded base85 numeral sequence
+** (aka "group") length maps 1-to-1 to the decoded binary length.
+**
+** Any character not in the base85 numeral set delimits groups.
+** When base85 is streamed or stored in containers of indefinite
+** size, newline is used to separate it into sub-sequences of no
+** more than 80 digits so that fgets() can be used to read it.
+**
+** Length limitations are not imposed except that the runtime
+** SQLite string or blob length limits are respected. Otherwise,
+** any length binary sequence can be represented and recovered.
+** Base85 sequences can be concatenated by separating them with
+** a non-base85 character; the conversion to binary will then
+** be the concatenation of the represented binary sequences.
+
+** The standalone program either converts base85 on stdin to create
+** a binary file or converts a binary file to base85 on stdout.
+** Read or make it blurt its help for invocation details.
+**
+** The SQLite3 extension creates a function, base85(x), which will
+** either convert text base85 to a blob or a blob to text base85
+** and return the result (or throw an error for other types.)
+** Unless built with OMIT_BASE85_CHECKER defined, it also creates a
+** function, is_base85(t), which returns 1 iff the text t contains
+** nothing other than base85 numerals and whitespace, or 0 otherwise.
+**
+** To build the extension:
+** Set shell variable SQDIR=<your favorite SQLite checkout directory>
+** and variable OPTS to -DOMIT_BASE85_CHECKER if is_base85() unwanted.
+** *Nix: gcc -O2 -shared -I$SQDIR $OPTS -fPIC -o base85.so base85.c
+** OSX: gcc -O2 -dynamiclib -fPIC -I$SQDIR $OPTS -o base85.dylib base85.c
+** Win32: gcc -O2 -shared -I%SQDIR% %OPTS% -o base85.dll base85.c
+** Win32: cl /Os -I%SQDIR% %OPTS% base85.c -link -dll -out:base85.dll
+**
+** To build the standalone program, define PP symbol BASE85_STANDALONE. Eg.
+** *Nix or OSX: gcc -O2 -DBASE85_STANDALONE base85.c -o base85
+** Win32: gcc -O2 -DBASE85_STANDALONE -o base85.exe base85.c
+** Win32: cl /Os /MD -DBASE85_STANDALONE base85.c
+*/
+
+#include <stdio.h>
+#include <memory.h>
+#include <string.h>
+#include <assert.h>
+#ifndef OMIT_BASE85_CHECKER
+# include <ctype.h>
+#endif
+
+#ifndef BASE85_STANDALONE
+
+# include "sqlite3ext.h"
+
+SQLITE_EXTENSION_INIT1;
+
+#else
+
+# ifdef _WIN32
+#  include <io.h>
+#  include <fcntl.h>
+# else
+#  define setmode(fd,m)
+# endif
+
+static char *zHelp =
+  "Usage: base85 <dirFlag> <binFile>\n"
+  " <dirFlag> is either -r to read or -w to write <binFile>,\n"
+  "   content to be converted to/from base85 on stdout/stdin.\n"
+  " <binFile> names a binary file to be rendered or created.\n"
+  "   Or, the name '-' refers to the stdin or stdout stream.\n"
+  ;
+
+static void sayHelp(){
+  printf("%s", zHelp);
+}
+#endif
+
+#ifndef U8_TYPEDEF
+typedef unsigned char u8;
+#define U8_TYPEDEF
+#endif
+
+/* Classify c according to interval within USASCII set w.r.t. base85
+ * Values of 1 and 3 are base85 numerals. Values of 0, 2, or 4 are not.
+ */
+#define B85_CLASS( c ) (((c)>='#')+((c)>'&')+((c)>='*')+((c)>'z'))
+
+/* Provide digitValue to b85Numeral offset as a function of above class. */
+static u8 b85_cOffset[] = { 0, '#', 0, '*'-4, 0 };
+#define B85_DNOS( c ) b85_cOffset[B85_CLASS(c)]
+
+/* Say whether c is a base85 numeral. */
+#define IS_B85( c ) (B85_CLASS(c) & 1)
+
+#if 0 /* Not used, */
+static u8 base85DigitValue( char c ){
+  u8 dv = (u8)(c - '#');
+  if( dv>87 ) return 0xff;
+  return (dv > 3)? dv-3 : dv;
+}
+#endif
+
+/* Width of base64 lines. Should be an integer multiple of 5. */
+#define B85_DARK_MAX 80
+
+
+static char * skipNonB85( char *s, int nc ){
+  char c;
+  while( nc-- > 0 && (c = *s) && !IS_B85(c) ) ++s;
+  return s;
+}
+
+/* Convert small integer, known to be in 0..84 inclusive, to base85 numeral.
+ * Do not use the macro form with argument expression having a side-effect.*/
+#if 0
+static char base85Numeral( u8 b ){
+  return (b < 4)? (char)(b + '#') : (char)(b - 4 + '*');
+}
+#else
+# define base85Numeral( dn )\
+  ((char)(((dn) < 4)? (char)((dn) + '#') : (char)((dn) - 4 + '*')))
+#endif
+
+static char *putcs(char *pc, char *s){
+  char c;
+  while( (c = *s++)!=0 ) *pc++ = c;
+  return pc;
+}
+
+/* Encode a byte buffer into base85 text. If pSep!=0, it's a C string
+** to be appended to encoded groups to limit their length to B85_DARK_MAX
+** or to terminate the last group (to aid concatenation.)
+*/
+static char* toBase85( u8 *pIn, int nbIn, char *pOut, char *pSep ){
+  int nCol = 0;
+  while( nbIn >= 4 ){
+    int nco = 5;
+    unsigned long qbv = (((unsigned long)pIn[0])<<24) |
+                        (pIn[1]<<16) | (pIn[2]<<8) | pIn[3];
+    while( nco > 0 ){
+      unsigned nqv = (unsigned)(qbv/85UL);
+      unsigned char dv = qbv - 85UL*nqv;
+      qbv = nqv;
+      pOut[--nco] = base85Numeral(dv);
+    }
+    nbIn -= 4;
+    pIn += 4;
+    pOut += 5;
+    if( pSep && (nCol += 5)>=B85_DARK_MAX ){
+      pOut = putcs(pOut, pSep);
+      nCol = 0;
+    }
+  }
+  if( nbIn > 0 ){
+    int nco = nbIn + 1;
+    unsigned long qv = *pIn++;
+    int nbe = 1;
+    while( nbe++ < nbIn ){
+      qv = (qv<<8) | *pIn++;
+    }
+    nCol += nco;
+    while( nco > 0 ){
+      u8 dv = (u8)(qv % 85);
+      qv /= 85;
+      pOut[--nco] = base85Numeral(dv);
+    }
+    pOut += (nbIn+1);
+  }
+  if( pSep && nCol>0 ) pOut = putcs(pOut, pSep);
+  *pOut = 0;
+  return pOut;
+}
+
+/* Decode base85 text into a byte buffer. */
+static u8* fromBase85( char *pIn, int ncIn, u8 *pOut ){
+  if( ncIn>0 && pIn[ncIn-1]=='\n' ) --ncIn;
+  while( ncIn>0 ){
+    static signed char nboi[] = { 0, 0, 1, 2, 3, 4 };
+    char *pUse = skipNonB85(pIn, ncIn);
+    unsigned long qv = 0L;
+    int nti, nbo;
+    ncIn -= (pUse - pIn);
+    pIn = pUse;
+    nti = (ncIn>5)? 5 : ncIn;
+    nbo = nboi[nti];
+    if( nbo==0 ) break;
+    while( nti>0 ){
+      char c = *pIn++;
+      u8 cdo = B85_DNOS(c);
+      --ncIn;
+      if( cdo==0 ) break;
+      qv = 85 * qv + (c - cdo);
+      --nti;
+    }
+    nbo -= nti; /* Adjust for early (non-digit) end of group. */
+    switch( nbo ){
+    case 4:
+      *pOut++ = (qv >> 24)&0xff;
+    case 3:
+      *pOut++ = (qv >> 16)&0xff;
+    case 2:
+      *pOut++ = (qv >> 8)&0xff;
+    case 1:
+      *pOut++ = qv&0xff;
+    case 0:
+      break;
+    }
+  }
+  return pOut;
+}
+
+#ifndef OMIT_BASE85_CHECKER
+/* Say whether input char sequence is all (base85 and/or whitespace).*/
+static int allBase85( char *p, int len ){
+  char c;
+  while( len-- > 0 && (c = *p++) != 0 ){
+    if( !IS_B85(c) && !isspace(c) ) return 0;
+  }
+  return 1;
+}
+#endif
+
+#ifndef BASE85_STANDALONE
+
+# ifndef OMIT_BASE85_CHECKER
+/* This function does the work for the SQLite is_base85(t) UDF. */
+static void is_base85(sqlite3_context *context, int na, sqlite3_value *av[]){
+  assert(na==1);
+  switch( sqlite3_value_type(av[0]) ){
+  case SQLITE_TEXT:
+    {
+      int rv = allBase85( (char *)sqlite3_value_text(av[0]),
+                          sqlite3_value_bytes(av[0]) );
+      sqlite3_result_int(context, rv);
+    }
+    break;
+  case SQLITE_NULL:
+    sqlite3_result_null(context);
+    break;
+  default:
+    sqlite3_result_error(context, "is_base85 accepts only text or NULL", -1);
+    return;
+  }
+}
+# endif
+
+/* This function does the work for the SQLite base85(x) UDF. */
+static void base85(sqlite3_context *context, int na, sqlite3_value *av[]){
+  int nb, nc, nv = sqlite3_value_bytes(av[0]);
+  int nvMax = sqlite3_limit(sqlite3_context_db_handle(context),
+                            SQLITE_LIMIT_LENGTH, -1);
+  char *cBuf;
+  u8 *bBuf;
+  assert(na==1);
+  switch( sqlite3_value_type(av[0]) ){
+  case SQLITE_BLOB:
+    nb = nv;
+    /*    ulongs    tail   newlines  tailenc+nul*/
+    nc = 5*(nv/4) + nv%4 + nv/64+1 + 2;
+    if( nvMax < nc ){
+      sqlite3_result_error(context, "blob expanded to base85 too big", -1);
+      return;
+    }
+    bBuf = (u8*)sqlite3_value_blob(av[0]);
+    if( !bBuf ){
+      if( SQLITE_NOMEM==sqlite3_errcode(sqlite3_context_db_handle(context)) ){
+        goto memFail;
+      }
+      sqlite3_result_text(context,"",-1,SQLITE_STATIC);
+      break;
+    }
+    cBuf = sqlite3_malloc(nc);
+    if( !cBuf ) goto memFail;
+    nc = (int)(toBase85(bBuf, nb, cBuf, "\n") - cBuf);
+    sqlite3_result_text(context, cBuf, nc, sqlite3_free);
+    break;
+  case SQLITE_TEXT:
+    nc = nv;
+    nb = 4*(nv/5) + nv%5; /* may overestimate */
+    if( nvMax < nb ){
+      sqlite3_result_error(context, "blob from base85 may be too big", -1);
+      return;
+    }else if( nb<1 ){
+      nb = 1;
+    }
+    cBuf = (char *)sqlite3_value_text(av[0]);
+    if( !cBuf ){
+      if( SQLITE_NOMEM==sqlite3_errcode(sqlite3_context_db_handle(context)) ){
+        goto memFail;
+      }
+      sqlite3_result_zeroblob(context, 0);
+      break;
+    }
+    bBuf = sqlite3_malloc(nb);
+    if( !bBuf ) goto memFail;
+    nb = (int)(fromBase85(cBuf, nc, bBuf) - bBuf);
+    sqlite3_result_blob(context, bBuf, nb, sqlite3_free);
+    break;
+  default:
+    sqlite3_result_error(context, "base85 accepts only blob or text.", -1);
+    return;
+  }
+  return;
+ memFail:
+  sqlite3_result_error(context, "base85 OOM", -1);
+}
+
+/*
+** Establish linkage to running SQLite library.
+*/
+#ifndef SQLITE_SHELL_EXTFUNCS
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_base_init
+#else
+static int sqlite3_base85_init
+#endif
+(sqlite3 *db, char **pzErr, const sqlite3_api_routines *pApi){
+  SQLITE_EXTENSION_INIT2(pApi);
+  (void)pzErr;
+# ifndef OMIT_BASE85_CHECKER
+  {
+    int rc = sqlite3_create_function
+      (db, "is_base85", 1,
+       SQLITE_DETERMINISTIC|SQLITE_INNOCUOUS|SQLITE_UTF8,
+       0, is_base85, 0, 0);
+    if( rc!=SQLITE_OK ) return rc;
+  }
+# endif
+  return sqlite3_create_function
+    (db, "base85", 1,
+     SQLITE_DETERMINISTIC|SQLITE_INNOCUOUS|SQLITE_DIRECTONLY|SQLITE_UTF8,
+     0, base85, 0, 0);
+}
+
+/*
+** Define some macros to allow this extension to be built into the shell
+** conveniently, in conjunction with use of SQLITE_SHELL_EXTFUNCS. This
+** allows shell.c, as distributed, to have this extension built in.
+*/
+# define BASE85_INIT(db) sqlite3_base85_init(db, 0, 0)
+# define BASE85_EXPOSE(db, pzErr) /* Not needed, ..._init() does this. */
+
+#else /* standalone program */
+
+int main(int na, char *av[]){
+  int cin;
+  int rc = 0;
+  u8 bBuf[4*(B85_DARK_MAX/5)];
+  char cBuf[5*(sizeof(bBuf)/4)+2];
+  size_t nio;
+# ifndef OMIT_BASE85_CHECKER
+  int b85Clean = 1;
+# endif
+  char rw;
+  FILE *fb = 0, *foc = 0;
+  char fmode[3] = "xb";
+  if( na < 3 || av[1][0]!='-' || (rw = av[1][1])==0 || (rw!='r' && rw!='w') ){
+    sayHelp();
+    return 0;
+  }
+  fmode[0] = rw;
+  if( av[2][0]=='-' && av[2][1]==0 ){
+    switch( rw ){
+    case 'r':
+      fb = stdin;
+      setmode(fileno(stdin), O_BINARY);
+      break;
+    case 'w':
+      fb = stdout;
+      setmode(fileno(stdout), O_BINARY);
+      break;
+    }
+  }else{
+    fb = fopen(av[2], fmode);
+    foc = fb;
+  }
+  if( !fb ){
+    fprintf(stderr, "Cannot open %s for %c\n", av[2], rw);
+    rc = 1;
+  }else{
+    switch( rw ){
+    case 'r':
+      while( (nio = fread( bBuf, 1, sizeof(bBuf), fb))>0 ){
+        toBase85( bBuf, (int)nio, cBuf, 0 );
+        fprintf(stdout, "%s\n", cBuf);
+      }
+      break;
+    case 'w':
+      while( 0 != fgets(cBuf, sizeof(cBuf), stdin) ){
+        int nc = strlen(cBuf);
+        size_t nbo = fromBase85( cBuf, nc, bBuf ) - bBuf;
+        if( 1 != fwrite(bBuf, nbo, 1, fb) ) rc = 1;
+# ifndef OMIT_BASE85_CHECKER
+        b85Clean &= allBase85( cBuf, nc );
+# endif
+      }
+      break;
+    default:
+      sayHelp();
+      rc = 1;
+    }
+    if( foc ) fclose(foc);
+  }
+# ifndef OMIT_BASE85_CHECKER
+  if( !b85Clean ){
+    fprintf(stderr, "Base85 input had non-base85 dark or control content.\n");
+  }
+# endif
+  return rc;
+}
+
+#endif
diff --git a/ext/misc/basexx.c b/ext/misc/basexx.c
new file mode 100644
index 0000000000000000000000000000000000000000..0dcde543566f4b595984360c080f4c399a3ce55d
--- /dev/null
+++ b/ext/misc/basexx.c
@@ -0,0 +1,89 @@
+/*
+** 2022-11-20
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** This source allows multiple SQLite extensions to be either: combined
+** into a single runtime-loadable library; or built into the SQLite shell
+** using a preprocessing convention set by src/shell.c.in (and shell.c).
+**
+** Presently, it combines the base64.c and base85.c extensions. However,
+** it can be used as a template for other combinations.
+**
+** Example usages:
+**
+**  - Build a runtime-loadable extension from SQLite checkout directory:
+** *Nix, OSX: gcc -O2 -shared -I. -fPIC -o basexx.so ext/misc/basexx.c
+** Win32: cl /Os -I. ext/misc/basexx.c -link -dll -out:basexx.dll
+**
+**  - Incorporate as built-in in sqlite3 shell:
+** *Nix, OSX with gcc on a like platform:
+**  export mop1=-DSQLITE_SHELL_EXTSRC=ext/misc/basexx.c
+**  export mop2=-DSQLITE_SHELL_EXTFUNCS=BASEXX
+**  make sqlite3 "OPTS=$mop1 $mop2"
+** Win32 with Microsoft toolset on Windows:
+**  set mop1=-DSQLITE_SHELL_EXTSRC=ext/misc/basexx.c
+**  set mop2=-DSQLITE_SHELL_EXTFUNCS=BASEXX
+**  set mops="OPTS=%mop1% %mop2%"
+**  nmake -f Makefile.msc sqlite3.exe %mops%
+*/
+
+#ifndef SQLITE_SHELL_EXTFUNCS /* Guard for #include as built-in extension. */
+# include "sqlite3ext.h"
+SQLITE_EXTENSION_INIT1;
+#endif
+
+static void init_api_ptr(const sqlite3_api_routines *pApi){
+  SQLITE_EXTENSION_INIT2(pApi);
+}
+
+#undef SQLITE_EXTENSION_INIT1
+#define SQLITE_EXTENSION_INIT1 /* */
+#undef SQLITE_EXTENSION_INIT2
+#define SQLITE_EXTENSION_INIT2(v) (void)v
+
+typedef unsigned char u8;
+#define U8_TYPEDEF
+
+/* These next 2 undef's are only needed because the entry point names
+ * collide when formulated per the rules stated for loadable extension
+ * entry point names that will be deduced from the file basenames.
+ */
+#undef sqlite3_base_init
+#define sqlite3_base_init sqlite3_base64_init
+#include "base64.c"
+
+#undef sqlite3_base_init
+#define sqlite3_base_init sqlite3_base85_init
+#include "base85.c"
+
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_basexx_init(sqlite3 *db, char **pzErr,
+                               const sqlite3_api_routines *pApi){
+  int rc1;
+  int rc2;
+
+  init_api_ptr(pApi);
+  rc1 = BASE64_INIT(db);
+  rc2 = BASE85_INIT(db);
+
+  if( rc1==SQLITE_OK && rc2==SQLITE_OK ){
+    BASE64_EXPOSE(db, pzErr);
+    BASE64_EXPOSE(db, pzErr);
+    return SQLITE_OK;
+  }else{
+    return SQLITE_ERROR;
+  }
+}
+
+# define BASEXX_INIT(db) sqlite3_basexx_init(db, 0, 0)
+# define BASEXX_EXPOSE(db, pzErr) /* Not needed, ..._init() does this. */
diff --git a/ext/misc/blobio.c b/ext/misc/blobio.c
new file mode 100644
index 0000000000000000000000000000000000000000..3a1ee8465c9323e590585b46775514af7c4ee7cf
--- /dev/null
+++ b/ext/misc/blobio.c
@@ -0,0 +1,152 @@
+/*
+** 2019-03-30
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** An SQL function that uses the incremental BLOB I/O mechanism of SQLite
+** to read or write part of a blob.  This is intended for debugging use
+** in the CLI.
+**
+**      readblob(SCHEMA,TABLE,COLUMN,ROWID,OFFSET,N)
+**
+** Returns N bytes of the blob starting at OFFSET.
+**
+**      writeblob(SCHEMA,TABLE,COLUMN,ROWID,OFFSET,NEWDATA)
+**
+** NEWDATA must be a blob.  The content of NEWDATA overwrites the
+** existing BLOB data at SCHEMA.TABLE.COLUMN for row ROWID beginning
+** at OFFSET bytes into the blob.
+*/
+#include "sqlite3ext.h"
+SQLITE_EXTENSION_INIT1
+#include <assert.h>
+#include <string.h>
+
+static void readblobFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  sqlite3_blob *pBlob = 0;
+  const char *zSchema;
+  const char *zTable;
+  const char *zColumn;
+  sqlite3_int64 iRowid;
+  int iOfst;
+  unsigned char *aData;
+  int nData;
+  sqlite3 *db;
+  int rc;
+
+  zSchema = (const char*)sqlite3_value_text(argv[0]);
+  zTable = (const char*)sqlite3_value_text(argv[1]);
+  if( zTable==0 ){
+    sqlite3_result_error(context, "bad table name", -1);
+    return;
+  }
+  zColumn = (const char*)sqlite3_value_text(argv[2]);
+  if( zTable==0 ){
+    sqlite3_result_error(context, "bad column name", -1);
+    return;
+  }
+  iRowid = sqlite3_value_int64(argv[3]);
+  iOfst = sqlite3_value_int(argv[4]);
+  nData = sqlite3_value_int(argv[5]);
+  if( nData<=0 ) return;
+  aData = sqlite3_malloc64( nData+1 );
+  if( aData==0 ){
+    sqlite3_result_error_nomem(context);
+    return;
+  }
+  db = sqlite3_context_db_handle(context);
+  rc = sqlite3_blob_open(db, zSchema, zTable, zColumn, iRowid, 0, &pBlob);
+  if( rc ){
+    sqlite3_free(aData);
+    sqlite3_result_error(context, "cannot open BLOB pointer", -1);
+    return;
+  }
+  rc = sqlite3_blob_read(pBlob, aData, nData, iOfst);
+  sqlite3_blob_close(pBlob);
+  if( rc ){
+    sqlite3_free(aData);
+    sqlite3_result_error(context, "BLOB read failed", -1);
+  }else{
+    sqlite3_result_blob(context, aData, nData, sqlite3_free);
+  }
+}    
+
+static void writeblobFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  sqlite3_blob *pBlob = 0;
+  const char *zSchema;
+  const char *zTable;
+  const char *zColumn;
+  sqlite3_int64 iRowid;
+  int iOfst;
+  unsigned char *aData;
+  int nData;
+  sqlite3 *db;
+  int rc;
+
+  zSchema = (const char*)sqlite3_value_text(argv[0]);
+  zTable = (const char*)sqlite3_value_text(argv[1]);
+  if( zTable==0 ){
+    sqlite3_result_error(context, "bad table name", -1);
+    return;
+  }
+  zColumn = (const char*)sqlite3_value_text(argv[2]);
+  if( zTable==0 ){
+    sqlite3_result_error(context, "bad column name", -1);
+    return;
+  }
+  iRowid = sqlite3_value_int64(argv[3]);
+  iOfst = sqlite3_value_int(argv[4]);
+  if( sqlite3_value_type(argv[5])!=SQLITE_BLOB ){
+    sqlite3_result_error(context, "6th argument must be a BLOB", -1);
+    return;
+  }
+  nData = sqlite3_value_bytes(argv[5]);
+  aData = (unsigned char *)sqlite3_value_blob(argv[5]);
+  db = sqlite3_context_db_handle(context);
+  rc = sqlite3_blob_open(db, zSchema, zTable, zColumn, iRowid, 1, &pBlob);
+  if( rc ){
+    sqlite3_result_error(context, "cannot open BLOB pointer", -1);
+    return;
+  }
+  rc = sqlite3_blob_write(pBlob, aData, nData, iOfst);
+  sqlite3_blob_close(pBlob);
+  if( rc ){
+    sqlite3_result_error(context, "BLOB write failed", -1);
+  }
+}    
+
+
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_blobio_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  int rc = SQLITE_OK;
+  SQLITE_EXTENSION_INIT2(pApi);
+  (void)pzErrMsg;  /* Unused parameter */
+  rc = sqlite3_create_function(db, "readblob", 6, SQLITE_UTF8, 0,
+                               readblobFunc, 0, 0);
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_function(db, "writeblob", 6, SQLITE_UTF8, 0,
+                               writeblobFunc, 0, 0);
+  }
+  return rc;
+}
diff --git a/ext/misc/btreeinfo.c b/ext/misc/btreeinfo.c
new file mode 100644
index 0000000000000000000000000000000000000000..02f8c0319c6c7ab45b71780c7fd3ddc32cc415d8
--- /dev/null
+++ b/ext/misc/btreeinfo.c
@@ -0,0 +1,430 @@
+/*
+** 2017-10-24
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This file contains an implementation of the "sqlite_btreeinfo" virtual table.
+**
+** The sqlite_btreeinfo virtual table is a read-only eponymous-only virtual
+** table that shows information about all btrees in an SQLite database file.
+** The schema is like this:
+**
+** CREATE TABLE sqlite_btreeinfo(
+**    type TEXT,                   -- "table" or "index"
+**    name TEXT,                   -- Name of table or index for this btree.
+**    tbl_name TEXT,               -- Associated table
+**    rootpage INT,                -- The root page of the btree
+**    sql TEXT,                    -- SQL for this btree - from sqlite_schema
+**    hasRowid BOOLEAN,            -- True if the btree has a rowid
+**    nEntry INT,                  -- Estimated number of entries
+**    nPage INT,                   -- Estimated number of pages
+**    depth INT,                   -- Depth of the btree
+**    szPage INT,                  -- Size of each page in bytes
+**    zSchema TEXT HIDDEN          -- The schema to which this btree belongs
+** );
+**
+** The first 5 fields are taken directly from the sqlite_schema table.
+** Considering only the first 5 fields, the only difference between 
+** this virtual table and the sqlite_schema table is that this virtual
+** table omits all entries that have a 0 or NULL rowid - in other words
+** it omits triggers and views.
+**
+** The value added by this table comes in the next 5 fields.
+**
+** Note that nEntry and nPage are *estimated*.  They are computed doing
+** a single search from the root to a leaf, counting the number of cells
+** at each level, and assuming that unvisited pages have a similar number
+** of cells.
+**
+** The sqlite_dbpage virtual table must be available for this virtual table
+** to operate.
+**
+** USAGE EXAMPLES:
+**
+** Show the table btrees in a schema order with the tables with the most
+** rows occuring first:
+**
+**      SELECT name, nEntry
+**        FROM sqlite_btreeinfo
+**       WHERE type='table'
+**       ORDER BY nEntry DESC, name;
+**
+** Show the names of all WITHOUT ROWID tables: 
+**
+**      SELECT name FROM sqlite_btreeinfo
+**       WHERE type='table' AND NOT hasRowid;
+*/
+#if !defined(SQLITEINT_H)
+#include "sqlite3ext.h"
+#endif
+SQLITE_EXTENSION_INIT1
+#include <string.h>
+#include <assert.h>
+
+/* Columns available in this virtual table */
+#define BINFO_COLUMN_TYPE         0
+#define BINFO_COLUMN_NAME         1
+#define BINFO_COLUMN_TBL_NAME     2
+#define BINFO_COLUMN_ROOTPAGE     3
+#define BINFO_COLUMN_SQL          4
+#define BINFO_COLUMN_HASROWID     5
+#define BINFO_COLUMN_NENTRY       6
+#define BINFO_COLUMN_NPAGE        7
+#define BINFO_COLUMN_DEPTH        8
+#define BINFO_COLUMN_SZPAGE       9
+#define BINFO_COLUMN_SCHEMA      10
+
+/* Forward declarations */
+typedef struct BinfoTable BinfoTable;
+typedef struct BinfoCursor BinfoCursor;
+
+/* A cursor for the sqlite_btreeinfo table */
+struct BinfoCursor {
+  sqlite3_vtab_cursor base;       /* Base class.  Must be first */
+  sqlite3_stmt *pStmt;            /* Query against sqlite_schema */
+  int rc;                         /* Result of previous sqlite_step() call */
+  int hasRowid;                   /* hasRowid value.  Negative if unknown. */
+  sqlite3_int64 nEntry;           /* nEntry value */
+  int nPage;                      /* nPage value */
+  int depth;                      /* depth value */
+  int szPage;                     /* size of a btree page.  0 if unknown */
+  char *zSchema;                  /* Schema being interrogated */
+};
+
+/* The sqlite_btreeinfo table */
+struct BinfoTable {
+  sqlite3_vtab base;              /* Base class.  Must be first */
+  sqlite3 *db;                    /* The databse connection */
+};
+
+/*
+** Connect to the sqlite_btreeinfo virtual table.
+*/
+static int binfoConnect(
+  sqlite3 *db,
+  void *pAux,
+  int argc, const char *const*argv,
+  sqlite3_vtab **ppVtab,
+  char **pzErr
+){
+  BinfoTable *pTab = 0;
+  int rc = SQLITE_OK;
+  rc = sqlite3_declare_vtab(db, 
+      "CREATE TABLE x(\n"
+      " type TEXT,\n"
+      " name TEXT,\n"
+      " tbl_name TEXT,\n"
+      " rootpage INT,\n"
+      " sql TEXT,\n"
+      " hasRowid BOOLEAN,\n"
+      " nEntry INT,\n"
+      " nPage INT,\n"
+      " depth INT,\n"
+      " szPage INT,\n"
+      " zSchema TEXT HIDDEN\n"
+      ")");
+  if( rc==SQLITE_OK ){
+    pTab = (BinfoTable *)sqlite3_malloc64(sizeof(BinfoTable));
+    if( pTab==0 ) rc = SQLITE_NOMEM;
+  }
+  assert( rc==SQLITE_OK || pTab==0 );
+  if( pTab ){
+    pTab->db = db;
+  }
+  *ppVtab = (sqlite3_vtab*)pTab;
+  return rc;
+}
+
+/*
+** Disconnect from or destroy a btreeinfo virtual table.
+*/
+static int binfoDisconnect(sqlite3_vtab *pVtab){
+  sqlite3_free(pVtab);
+  return SQLITE_OK;
+}
+
+/*
+** idxNum:
+**
+**     0     Use "main" for the schema
+**     1     Schema identified by parameter ?1
+*/
+static int binfoBestIndex(sqlite3_vtab *tab, sqlite3_index_info *pIdxInfo){
+  int i;
+  pIdxInfo->estimatedCost = 10000.0;  /* Cost estimate */
+  pIdxInfo->estimatedRows = 100;
+  for(i=0; i<pIdxInfo->nConstraint; i++){
+    struct sqlite3_index_constraint *p = &pIdxInfo->aConstraint[i];
+    if( p->usable
+     && p->iColumn==BINFO_COLUMN_SCHEMA
+     && p->op==SQLITE_INDEX_CONSTRAINT_EQ
+    ){
+      pIdxInfo->estimatedCost = 1000.0;
+      pIdxInfo->idxNum = 1;
+      pIdxInfo->aConstraintUsage[i].argvIndex = 1;
+      pIdxInfo->aConstraintUsage[i].omit = 1;
+      break;
+    }
+  }
+  return SQLITE_OK;
+}
+
+/*
+** Open a new btreeinfo cursor.
+*/
+static int binfoOpen(sqlite3_vtab *pVTab, sqlite3_vtab_cursor **ppCursor){
+  BinfoCursor *pCsr;
+
+  pCsr = (BinfoCursor *)sqlite3_malloc64(sizeof(BinfoCursor));
+  if( pCsr==0 ){
+    return SQLITE_NOMEM;
+  }else{
+    memset(pCsr, 0, sizeof(BinfoCursor));
+    pCsr->base.pVtab = pVTab;
+  }
+
+  *ppCursor = (sqlite3_vtab_cursor *)pCsr;
+  return SQLITE_OK;
+}
+
+/*
+** Close a btreeinfo cursor.
+*/
+static int binfoClose(sqlite3_vtab_cursor *pCursor){
+  BinfoCursor *pCsr = (BinfoCursor *)pCursor;
+  sqlite3_finalize(pCsr->pStmt);
+  sqlite3_free(pCsr->zSchema);
+  sqlite3_free(pCsr);
+  return SQLITE_OK;
+}
+
+/*
+** Move a btreeinfo cursor to the next entry in the file.
+*/
+static int binfoNext(sqlite3_vtab_cursor *pCursor){
+  BinfoCursor *pCsr = (BinfoCursor *)pCursor;
+  pCsr->rc = sqlite3_step(pCsr->pStmt);
+  pCsr->hasRowid = -1;
+  return pCsr->rc==SQLITE_ERROR ? SQLITE_ERROR : SQLITE_OK;
+}
+
+/* We have reached EOF if previous sqlite3_step() returned
+** anything other than SQLITE_ROW;
+*/
+static int binfoEof(sqlite3_vtab_cursor *pCursor){
+  BinfoCursor *pCsr = (BinfoCursor *)pCursor;
+  return pCsr->rc!=SQLITE_ROW;
+}
+
+/* Position a cursor back to the beginning.
+*/
+static int binfoFilter(
+  sqlite3_vtab_cursor *pCursor, 
+  int idxNum, const char *idxStr,
+  int argc, sqlite3_value **argv
+){
+  BinfoCursor *pCsr = (BinfoCursor *)pCursor;
+  BinfoTable *pTab = (BinfoTable *)pCursor->pVtab;
+  char *zSql;
+  int rc;
+
+  sqlite3_free(pCsr->zSchema);
+  if( idxNum==1 && sqlite3_value_type(argv[0])!=SQLITE_NULL ){
+    pCsr->zSchema = sqlite3_mprintf("%s", sqlite3_value_text(argv[0]));
+  }else{
+    pCsr->zSchema = sqlite3_mprintf("main");
+  }
+  zSql = sqlite3_mprintf(
+      "SELECT 0, 'table','sqlite_schema','sqlite_schema',1,NULL "
+      "UNION ALL "
+      "SELECT rowid, type, name, tbl_name, rootpage, sql"
+      " FROM \"%w\".sqlite_schema WHERE rootpage>=1",
+       pCsr->zSchema);
+  sqlite3_finalize(pCsr->pStmt);
+  pCsr->pStmt = 0;
+  pCsr->hasRowid = -1;
+  rc = sqlite3_prepare_v2(pTab->db, zSql, -1, &pCsr->pStmt, 0);
+  sqlite3_free(zSql);
+  if( rc==SQLITE_OK ){
+    rc = binfoNext(pCursor);
+  }
+  return rc;
+}
+
+/* Decode big-endian integers */
+static unsigned int get_uint16(unsigned char *a){
+  return (a[0]<<8)|a[1];
+}
+static unsigned int get_uint32(unsigned char *a){
+  return (a[0]<<24)|(a[1]<<16)|(a[2]<<8)|a[3];
+}
+
+/* Examine the b-tree rooted at pgno and estimate its size.
+** Return non-zero if anything goes wrong.
+*/
+static int binfoCompute(sqlite3 *db, int pgno, BinfoCursor *pCsr){
+  sqlite3_int64 nEntry = 1;
+  int nPage = 1;
+  unsigned char *aData;
+  sqlite3_stmt *pStmt = 0;
+  int rc = SQLITE_OK;
+  int pgsz = 0;
+  int nCell;
+  int iCell;
+
+  rc = sqlite3_prepare_v2(db, 
+           "SELECT data FROM sqlite_dbpage('main') WHERE pgno=?1", -1,
+           &pStmt, 0);
+  if( rc ) return rc;
+  pCsr->depth = 1;
+  while(1){
+    sqlite3_bind_int(pStmt, 1, pgno);
+    rc = sqlite3_step(pStmt);
+    if( rc!=SQLITE_ROW ){
+      rc = SQLITE_ERROR;
+      break;
+    }
+    pCsr->szPage = pgsz = sqlite3_column_bytes(pStmt, 0);
+    aData = (unsigned char*)sqlite3_column_blob(pStmt, 0);
+    if( aData==0 ){    
+      rc = SQLITE_NOMEM;
+      break;
+    }
+    if( pgno==1 ){
+      aData += 100;
+      pgsz -= 100;
+    }
+    pCsr->hasRowid = aData[0]!=2 && aData[0]!=10;
+    nCell = get_uint16(aData+3);
+    nEntry *= (nCell+1);
+    if( aData[0]==10 || aData[0]==13 ) break;
+    nPage *= (nCell+1);
+    if( nCell<=1 ){
+      pgno = get_uint32(aData+8);
+    }else{
+      iCell = get_uint16(aData+12+2*(nCell/2));
+      if( pgno==1 ) iCell -= 100;
+      if( iCell<=12 || iCell>=pgsz-4 ){
+        rc = SQLITE_CORRUPT;
+        break;
+      }
+      pgno = get_uint32(aData+iCell);
+    }
+    pCsr->depth++;
+    sqlite3_reset(pStmt);
+  }
+  sqlite3_finalize(pStmt);
+  pCsr->nPage = nPage;
+  pCsr->nEntry = nEntry;
+  if( rc==SQLITE_ROW ) rc = SQLITE_OK;
+  return rc;
+}
+
+/* Return a column for the sqlite_btreeinfo table */
+static int binfoColumn(
+  sqlite3_vtab_cursor *pCursor, 
+  sqlite3_context *ctx, 
+  int i
+){
+  BinfoCursor *pCsr = (BinfoCursor *)pCursor;
+  if( i>=BINFO_COLUMN_HASROWID && i<=BINFO_COLUMN_SZPAGE && pCsr->hasRowid<0 ){
+    int pgno = sqlite3_column_int(pCsr->pStmt, BINFO_COLUMN_ROOTPAGE+1);
+    sqlite3 *db = sqlite3_context_db_handle(ctx);
+    int rc = binfoCompute(db, pgno, pCsr);
+    if( rc ){
+      pCursor->pVtab->zErrMsg = sqlite3_mprintf("%s", sqlite3_errmsg(db));
+      return SQLITE_ERROR;
+    }
+  }
+  switch( i ){
+    case BINFO_COLUMN_NAME:
+    case BINFO_COLUMN_TYPE:
+    case BINFO_COLUMN_TBL_NAME:
+    case BINFO_COLUMN_ROOTPAGE:
+    case BINFO_COLUMN_SQL: {
+      sqlite3_result_value(ctx, sqlite3_column_value(pCsr->pStmt, i+1));
+      break;
+    }
+    case BINFO_COLUMN_HASROWID: {
+      sqlite3_result_int(ctx, pCsr->hasRowid);
+      break;
+    }
+    case BINFO_COLUMN_NENTRY: {
+      sqlite3_result_int64(ctx, pCsr->nEntry);
+      break;
+    }
+    case BINFO_COLUMN_NPAGE: {
+      sqlite3_result_int(ctx, pCsr->nPage);
+      break;
+    }
+    case BINFO_COLUMN_DEPTH: {
+      sqlite3_result_int(ctx, pCsr->depth);
+      break;
+    }
+    case BINFO_COLUMN_SCHEMA: {
+      sqlite3_result_text(ctx, pCsr->zSchema, -1, SQLITE_STATIC);
+      break;
+    }
+  }
+  return SQLITE_OK;
+}
+
+/* Return the ROWID for the sqlite_btreeinfo table */
+static int binfoRowid(sqlite3_vtab_cursor *pCursor, sqlite_int64 *pRowid){
+  BinfoCursor *pCsr = (BinfoCursor *)pCursor;
+  *pRowid = sqlite3_column_int64(pCsr->pStmt, 0);
+  return SQLITE_OK;
+}
+
+/*
+** Invoke this routine to register the "sqlite_btreeinfo" virtual table module
+*/
+int sqlite3BinfoRegister(sqlite3 *db){
+  static sqlite3_module binfo_module = {
+    0,                           /* iVersion */
+    0,                           /* xCreate */
+    binfoConnect,                /* xConnect */
+    binfoBestIndex,              /* xBestIndex */
+    binfoDisconnect,             /* xDisconnect */
+    0,                           /* xDestroy */
+    binfoOpen,                   /* xOpen - open a cursor */
+    binfoClose,                  /* xClose - close a cursor */
+    binfoFilter,                 /* xFilter - configure scan constraints */
+    binfoNext,                   /* xNext - advance a cursor */
+    binfoEof,                    /* xEof - check for end of scan */
+    binfoColumn,                 /* xColumn - read data */
+    binfoRowid,                  /* xRowid - read data */
+    0,                           /* xUpdate */
+    0,                           /* xBegin */
+    0,                           /* xSync */
+    0,                           /* xCommit */
+    0,                           /* xRollback */
+    0,                           /* xFindMethod */
+    0,                           /* xRename */
+    0,                           /* xSavepoint */
+    0,                           /* xRelease */
+    0,                           /* xRollbackTo */
+    0,                           /* xShadowName */
+    0                            /* xIntegrity */
+  };
+  return sqlite3_create_module(db, "sqlite_btreeinfo", &binfo_module, 0);
+}
+
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_btreeinfo_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  SQLITE_EXTENSION_INIT2(pApi);
+  return sqlite3BinfoRegister(db);
+}
diff --git a/ext/misc/carray.c b/ext/misc/carray.c
new file mode 100644
index 0000000000000000000000000000000000000000..b1caa98c3fa899a472bc0952eb7341b5fc04dfad
--- /dev/null
+++ b/ext/misc/carray.c
@@ -0,0 +1,561 @@
+/*
+** 2016-06-29
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** This file demonstrates how to create a table-valued-function that
+** returns the values in a C-language array.
+** Examples:
+**
+**      SELECT * FROM carray($ptr,5)
+**
+** The query above returns 5 integers contained in a C-language array
+** at the address $ptr.  $ptr is a pointer to the array of integers.
+** The pointer value must be assigned to $ptr using the
+** sqlite3_bind_pointer() interface with a pointer type of "carray".
+** For example:
+**
+**    static int aX[] = { 53, 9, 17, 2231, 4, 99 };
+**    int i = sqlite3_bind_parameter_index(pStmt, "$ptr");
+**    sqlite3_bind_pointer(pStmt, i, aX, "carray", 0);
+**
+** There is an optional third parameter to determine the datatype of
+** the C-language array.  Allowed values of the third parameter are
+** 'int32', 'int64', 'double', 'char*', 'struct iovec'.  Example:
+**
+**      SELECT * FROM carray($ptr,10,'char*');
+**
+** The default value of the third parameter is 'int32'.
+**
+** HOW IT WORKS
+**
+** The carray "function" is really a virtual table with the
+** following schema:
+**
+**     CREATE TABLE carray(
+**       value,
+**       pointer HIDDEN,
+**       count HIDDEN,
+**       ctype TEXT HIDDEN
+**     );
+**
+** If the hidden columns "pointer" and "count" are unconstrained, then 
+** the virtual table has no rows.  Otherwise, the virtual table interprets
+** the integer value of "pointer" as a pointer to the array and "count"
+** as the number of elements in the array.  The virtual table steps through
+** the array, element by element.
+*/
+#include "sqlite3ext.h"
+SQLITE_EXTENSION_INIT1
+#include <assert.h>
+#include <string.h>
+#ifdef _WIN32
+  struct iovec {
+    void *iov_base;
+    size_t iov_len;
+  };
+#else
+# include <sys/uio.h>
+#endif
+ 
+/* Allowed values for the mFlags parameter to sqlite3_carray_bind().
+** Must exactly match the definitions in carray.h.
+*/
+#ifndef CARRAY_INT32
+# define CARRAY_INT32     0      /* Data is 32-bit signed integers */
+# define CARRAY_INT64     1      /* Data is 64-bit signed integers */
+# define CARRAY_DOUBLE    2      /* Data is doubles */
+# define CARRAY_TEXT      3      /* Data is char* */
+# define CARRAY_BLOB      4      /* Data is struct iovec* */
+#endif
+
+#ifndef SQLITE_API
+# ifdef _WIN32
+#  define SQLITE_API __declspec(dllexport)
+# else
+#  define SQLITE_API
+# endif
+#endif
+
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+
+/*
+** Names of allowed datatypes
+*/
+static const char *azType[] = { "int32", "int64", "double", "char*",
+                                "struct iovec" };
+
+/*
+** Structure used to hold the sqlite3_carray_bind() information
+*/
+typedef struct carray_bind carray_bind;
+struct carray_bind {
+  void *aData;                /* The data */
+  int nData;                  /* Number of elements */
+  int mFlags;                 /* Control flags */
+  void (*xDel)(void*);        /* Destructor for aData */
+};
+
+
+/* carray_cursor is a subclass of sqlite3_vtab_cursor which will
+** serve as the underlying representation of a cursor that scans
+** over rows of the result
+*/
+typedef struct carray_cursor carray_cursor;
+struct carray_cursor {
+  sqlite3_vtab_cursor base;  /* Base class - must be first */
+  sqlite3_int64 iRowid;      /* The rowid */
+  void *pPtr;                /* Pointer to the array of values */
+  sqlite3_int64 iCnt;        /* Number of integers in the array */
+  unsigned char eType;       /* One of the CARRAY_type values */
+};
+
+/*
+** The carrayConnect() method is invoked to create a new
+** carray_vtab that describes the carray virtual table.
+**
+** Think of this routine as the constructor for carray_vtab objects.
+**
+** All this routine needs to do is:
+**
+**    (1) Allocate the carray_vtab object and initialize all fields.
+**
+**    (2) Tell SQLite (via the sqlite3_declare_vtab() interface) what the
+**        result set of queries against carray will look like.
+*/
+static int carrayConnect(
+  sqlite3 *db,
+  void *pAux,
+  int argc, const char *const*argv,
+  sqlite3_vtab **ppVtab,
+  char **pzErr
+){
+  sqlite3_vtab *pNew;
+  int rc;
+
+/* Column numbers */
+#define CARRAY_COLUMN_VALUE   0
+#define CARRAY_COLUMN_POINTER 1
+#define CARRAY_COLUMN_COUNT   2
+#define CARRAY_COLUMN_CTYPE   3
+
+  rc = sqlite3_declare_vtab(db,
+     "CREATE TABLE x(value,pointer hidden,count hidden,ctype hidden)");
+  if( rc==SQLITE_OK ){
+    pNew = *ppVtab = sqlite3_malloc( sizeof(*pNew) );
+    if( pNew==0 ) return SQLITE_NOMEM;
+    memset(pNew, 0, sizeof(*pNew));
+  }
+  return rc;
+}
+
+/*
+** This method is the destructor for carray_cursor objects.
+*/
+static int carrayDisconnect(sqlite3_vtab *pVtab){
+  sqlite3_free(pVtab);
+  return SQLITE_OK;
+}
+
+/*
+** Constructor for a new carray_cursor object.
+*/
+static int carrayOpen(sqlite3_vtab *p, sqlite3_vtab_cursor **ppCursor){
+  carray_cursor *pCur;
+  pCur = sqlite3_malloc( sizeof(*pCur) );
+  if( pCur==0 ) return SQLITE_NOMEM;
+  memset(pCur, 0, sizeof(*pCur));
+  *ppCursor = &pCur->base;
+  return SQLITE_OK;
+}
+
+/*
+** Destructor for a carray_cursor.
+*/
+static int carrayClose(sqlite3_vtab_cursor *cur){
+  sqlite3_free(cur);
+  return SQLITE_OK;
+}
+
+
+/*
+** Advance a carray_cursor to its next row of output.
+*/
+static int carrayNext(sqlite3_vtab_cursor *cur){
+  carray_cursor *pCur = (carray_cursor*)cur;
+  pCur->iRowid++;
+  return SQLITE_OK;
+}
+
+/*
+** Return values of columns for the row at which the carray_cursor
+** is currently pointing.
+*/
+static int carrayColumn(
+  sqlite3_vtab_cursor *cur,   /* The cursor */
+  sqlite3_context *ctx,       /* First argument to sqlite3_result_...() */
+  int i                       /* Which column to return */
+){
+  carray_cursor *pCur = (carray_cursor*)cur;
+  sqlite3_int64 x = 0;
+  switch( i ){
+    case CARRAY_COLUMN_POINTER:   return SQLITE_OK;
+    case CARRAY_COLUMN_COUNT:     x = pCur->iCnt;   break;
+    case CARRAY_COLUMN_CTYPE: {
+      sqlite3_result_text(ctx, azType[pCur->eType], -1, SQLITE_STATIC);
+      return SQLITE_OK;
+    }
+    default: {
+      switch( pCur->eType ){
+        case CARRAY_INT32: {
+          int *p = (int*)pCur->pPtr;
+          sqlite3_result_int(ctx, p[pCur->iRowid-1]);
+          return SQLITE_OK;
+        }
+        case CARRAY_INT64: {
+          sqlite3_int64 *p = (sqlite3_int64*)pCur->pPtr;
+          sqlite3_result_int64(ctx, p[pCur->iRowid-1]);
+          return SQLITE_OK;
+        }
+        case CARRAY_DOUBLE: {
+          double *p = (double*)pCur->pPtr;
+          sqlite3_result_double(ctx, p[pCur->iRowid-1]);
+          return SQLITE_OK;
+        }
+        case CARRAY_TEXT: {
+          const char **p = (const char**)pCur->pPtr;
+          sqlite3_result_text(ctx, p[pCur->iRowid-1], -1, SQLITE_TRANSIENT);
+          return SQLITE_OK;
+        }
+        case CARRAY_BLOB: {
+          const struct iovec *p = (struct iovec*)pCur->pPtr;
+          sqlite3_result_blob(ctx, p[pCur->iRowid-1].iov_base,
+                               (int)p[pCur->iRowid-1].iov_len, SQLITE_TRANSIENT);
+          return SQLITE_OK;
+        }
+      }
+    }
+  }
+  sqlite3_result_int64(ctx, x);
+  return SQLITE_OK;
+}
+
+/*
+** Return the rowid for the current row.  In this implementation, the
+** rowid is the same as the output value.
+*/
+static int carrayRowid(sqlite3_vtab_cursor *cur, sqlite_int64 *pRowid){
+  carray_cursor *pCur = (carray_cursor*)cur;
+  *pRowid = pCur->iRowid;
+  return SQLITE_OK;
+}
+
+/*
+** Return TRUE if the cursor has been moved off of the last
+** row of output.
+*/
+static int carrayEof(sqlite3_vtab_cursor *cur){
+  carray_cursor *pCur = (carray_cursor*)cur;
+  return pCur->iRowid>pCur->iCnt;
+}
+
+/*
+** This method is called to "rewind" the carray_cursor object back
+** to the first row of output.
+*/
+static int carrayFilter(
+  sqlite3_vtab_cursor *pVtabCursor, 
+  int idxNum, const char *idxStr,
+  int argc, sqlite3_value **argv
+){
+  carray_cursor *pCur = (carray_cursor *)pVtabCursor;
+  pCur->pPtr = 0;
+  pCur->iCnt = 0;
+  switch( idxNum ){
+    case 1: {
+      carray_bind *pBind = sqlite3_value_pointer(argv[0], "carray-bind");
+      if( pBind==0 ) break;
+      pCur->pPtr = pBind->aData;
+      pCur->iCnt = pBind->nData;
+      pCur->eType = pBind->mFlags & 0x07;
+      break;
+    }
+    case 2:
+    case 3: {
+      pCur->pPtr = sqlite3_value_pointer(argv[0], "carray");
+      pCur->iCnt = pCur->pPtr ? sqlite3_value_int64(argv[1]) : 0;
+      if( idxNum<3 ){
+        pCur->eType = CARRAY_INT32;
+      }else{
+        unsigned char i;
+        const char *zType = (const char*)sqlite3_value_text(argv[2]);
+        for(i=0; i<sizeof(azType)/sizeof(azType[0]); i++){
+          if( sqlite3_stricmp(zType, azType[i])==0 ) break;
+        }
+        if( i>=sizeof(azType)/sizeof(azType[0]) ){
+          pVtabCursor->pVtab->zErrMsg = sqlite3_mprintf(
+            "unknown datatype: %Q", zType);
+          return SQLITE_ERROR;
+        }else{
+          pCur->eType = i;
+        }
+      }
+      break;
+    }
+  }
+  pCur->iRowid = 1;
+  return SQLITE_OK;
+}
+
+/*
+** SQLite will invoke this method one or more times while planning a query
+** that uses the carray virtual table.  This routine needs to create
+** a query plan for each invocation and compute an estimated cost for that
+** plan.
+**
+** In this implementation idxNum is used to represent the
+** query plan.  idxStr is unused.
+**
+** idxNum is:
+**
+**    1    If only the pointer= constraint exists.  In this case, the
+**         parameter must be bound using sqlite3_carray_bind().
+**
+**    2    if the pointer= and count= constraints exist.
+**
+**    3    if the ctype= constraint also exists.
+**
+** idxNum is 0 otherwise and carray becomes an empty table.
+*/
+static int carrayBestIndex(
+  sqlite3_vtab *tab,
+  sqlite3_index_info *pIdxInfo
+){
+  int i;                 /* Loop over constraints */
+  int ptrIdx = -1;       /* Index of the pointer= constraint, or -1 if none */
+  int cntIdx = -1;       /* Index of the count= constraint, or -1 if none */
+  int ctypeIdx = -1;     /* Index of the ctype= constraint, or -1 if none */
+
+  const struct sqlite3_index_constraint *pConstraint;
+  pConstraint = pIdxInfo->aConstraint;
+  for(i=0; i<pIdxInfo->nConstraint; i++, pConstraint++){
+    if( pConstraint->usable==0 ) continue;
+    if( pConstraint->op!=SQLITE_INDEX_CONSTRAINT_EQ ) continue;
+    switch( pConstraint->iColumn ){
+      case CARRAY_COLUMN_POINTER:
+        ptrIdx = i;
+        break;
+      case CARRAY_COLUMN_COUNT:
+        cntIdx = i;
+        break;
+      case CARRAY_COLUMN_CTYPE:
+        ctypeIdx = i;
+        break;
+    }
+  }
+  if( ptrIdx>=0 ){
+    pIdxInfo->aConstraintUsage[ptrIdx].argvIndex = 1;
+    pIdxInfo->aConstraintUsage[ptrIdx].omit = 1;
+    pIdxInfo->estimatedCost = (double)1;
+    pIdxInfo->estimatedRows = 100;
+    pIdxInfo->idxNum = 1;
+    if( cntIdx>=0 ){
+      pIdxInfo->aConstraintUsage[cntIdx].argvIndex = 2;
+      pIdxInfo->aConstraintUsage[cntIdx].omit = 1;
+      pIdxInfo->idxNum = 2;
+      if( ctypeIdx>=0 ){
+        pIdxInfo->aConstraintUsage[ctypeIdx].argvIndex = 3;
+        pIdxInfo->aConstraintUsage[ctypeIdx].omit = 1;
+        pIdxInfo->idxNum = 3;
+      }
+    }
+  }else{
+    pIdxInfo->estimatedCost = (double)2147483647;
+    pIdxInfo->estimatedRows = 2147483647;
+    pIdxInfo->idxNum = 0;
+  }
+  return SQLITE_OK;
+}
+
+/*
+** This following structure defines all the methods for the 
+** carray virtual table.
+*/
+static sqlite3_module carrayModule = {
+  0,                         /* iVersion */
+  0,                         /* xCreate */
+  carrayConnect,             /* xConnect */
+  carrayBestIndex,           /* xBestIndex */
+  carrayDisconnect,          /* xDisconnect */
+  0,                         /* xDestroy */
+  carrayOpen,                /* xOpen - open a cursor */
+  carrayClose,               /* xClose - close a cursor */
+  carrayFilter,              /* xFilter - configure scan constraints */
+  carrayNext,                /* xNext - advance a cursor */
+  carrayEof,                 /* xEof - check for end of scan */
+  carrayColumn,              /* xColumn - read data */
+  carrayRowid,               /* xRowid - read data */
+  0,                         /* xUpdate */
+  0,                         /* xBegin */
+  0,                         /* xSync */
+  0,                         /* xCommit */
+  0,                         /* xRollback */
+  0,                         /* xFindMethod */
+  0,                         /* xRename */
+  0,                         /* xSavepoint */
+  0,                         /* xRelease */
+  0,                         /* xRollbackTo */
+  0,                         /* xShadow */
+  0                          /* xIntegrity */
+};
+
+/*
+** Destructor for the carray_bind object
+*/
+static void carrayBindDel(void *pPtr){
+  carray_bind *p = (carray_bind*)pPtr;
+  if( p->xDel!=SQLITE_STATIC ){
+     p->xDel(p->aData);
+  }
+  sqlite3_free(p);
+}
+
+/*
+** Invoke this interface in order to bind to the single-argument
+** version of CARRAY().
+*/
+SQLITE_API int sqlite3_carray_bind(
+  sqlite3_stmt *pStmt,
+  int idx,
+  void *aData,
+  int nData,
+  int mFlags,
+  void (*xDestroy)(void*)
+){
+  carray_bind *pNew;
+  int i;
+  pNew = sqlite3_malloc64(sizeof(*pNew));
+  if( pNew==0 ){
+    if( xDestroy!=SQLITE_STATIC && xDestroy!=SQLITE_TRANSIENT ){
+      xDestroy(aData);
+    }
+    return SQLITE_NOMEM;
+  }
+  pNew->nData = nData;
+  pNew->mFlags = mFlags;
+  if( xDestroy==SQLITE_TRANSIENT ){
+    sqlite3_int64 sz = nData;
+    switch( mFlags & 0x07 ){
+      case CARRAY_INT32:   sz *= 4;                     break;
+      case CARRAY_INT64:   sz *= 8;                     break;
+      case CARRAY_DOUBLE:  sz *= 8;                     break;
+      case CARRAY_TEXT:    sz *= sizeof(char*);         break;
+      case CARRAY_BLOB:    sz *= sizeof(struct iovec);  break;
+    }
+    if( (mFlags & 0x07)==CARRAY_TEXT ){
+      for(i=0; i<nData; i++){
+        const char *z = ((char**)aData)[i];
+        if( z ) sz += strlen(z) + 1;
+      }
+    }else if( (mFlags & 0x07)==CARRAY_BLOB ){
+      for(i=0; i<nData; i++){
+        sz += ((struct iovec*)aData)[i].iov_len;
+      }
+    } 
+    pNew->aData = sqlite3_malloc64( sz );
+    if( pNew->aData==0 ){
+      sqlite3_free(pNew);
+      return SQLITE_NOMEM;
+    }
+    if( (mFlags & 0x07)==CARRAY_TEXT ){
+      char **az = (char**)pNew->aData;
+      char *z = (char*)&az[nData];
+      for(i=0; i<nData; i++){
+        const char *zData = ((char**)aData)[i];
+        sqlite3_int64 n;
+        if( zData==0 ){
+          az[i] = 0;
+          continue;
+        }
+        az[i] = z;
+        n = strlen(zData);
+        memcpy(z, zData, n+1);
+        z += n+1;
+      }
+    }else if( (mFlags & 0x07)==CARRAY_BLOB ){
+      struct iovec *p = (struct iovec*)pNew->aData;
+      unsigned char *z = (unsigned char*)&p[nData];
+      for(i=0; i<nData; i++){
+        size_t n = ((struct iovec*)aData)[i].iov_len;
+        p[i].iov_len = n;
+        p[i].iov_base = z;
+        z += n;
+        memcpy(p[i].iov_base, ((struct iovec*)aData)[i].iov_base, n);
+      }
+    }else{
+      memcpy(pNew->aData, aData, sz);
+    }
+    pNew->xDel = sqlite3_free;
+  }else{
+    pNew->aData = aData;
+    pNew->xDel = xDestroy;
+  }
+  return sqlite3_bind_pointer(pStmt, idx, pNew, "carray-bind", carrayBindDel);
+}
+
+
+/*
+** For testing purpose in the TCL test harness, we need a method for
+** setting the pointer value.  The inttoptr(X) SQL function accomplishes
+** this.  Tcl script will bind an integer to X and the inttoptr() SQL
+** function will use sqlite3_result_pointer() to convert that integer into
+** a pointer.
+**
+** This is for testing on TCL only.
+*/
+#ifdef SQLITE_TEST
+static void inttoptrFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  void *p;
+  sqlite3_int64 i64;
+  i64 = sqlite3_value_int64(argv[0]);
+  if( sizeof(i64)==sizeof(p) ){
+    memcpy(&p, &i64, sizeof(p));
+  }else{
+    int i32 = i64 & 0xffffffff;
+    memcpy(&p, &i32, sizeof(p));
+  }
+  sqlite3_result_pointer(context, p, "carray", 0);
+}
+#endif /* SQLITE_TEST */
+
+#endif /* SQLITE_OMIT_VIRTUALTABLE */
+
+SQLITE_API int sqlite3_carray_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  int rc = SQLITE_OK;
+  SQLITE_EXTENSION_INIT2(pApi);
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+  rc = sqlite3_create_module(db, "carray", &carrayModule, 0);
+#ifdef SQLITE_TEST
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_function(db, "inttoptr", 1, SQLITE_UTF8, 0,
+                                 inttoptrFunc, 0, 0);
+  }
+#endif /* SQLITE_TEST */
+#endif /* SQLITE_OMIT_VIRTUALTABLE */
+  return rc;
+}
diff --git a/ext/misc/carray.h b/ext/misc/carray.h
new file mode 100644
index 0000000000000000000000000000000000000000..ae0a9e8ab07095147542e918a4203e8af1817475
--- /dev/null
+++ b/ext/misc/carray.h
@@ -0,0 +1,50 @@
+/*
+** 2020-11-17
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** Interface definitions for the CARRAY table-valued function
+** extension.
+*/
+
+#ifndef _CARRAY_H
+#define _CARRAY_H
+
+#include "sqlite3.h"              /* Required for error code definitions */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Use this interface to bind an array to the single-argument version
+** of CARRAY().
+*/
+SQLITE_API int sqlite3_carray_bind(
+  sqlite3_stmt *pStmt,        /* Statement to be bound */
+  int i,                      /* Parameter index */
+  void *aData,                /* Pointer to array data */
+  int nData,                  /* Number of data elements */
+  int mFlags,                 /* CARRAY flags */
+  void (*xDel)(void*)         /* Destructgor for aData*/
+);
+
+/* Allowed values for the mFlags parameter to sqlite3_carray_bind().
+*/
+#define CARRAY_INT32     0    /* Data is 32-bit signed integers */
+#define CARRAY_INT64     1    /* Data is 64-bit signed integers */
+#define CARRAY_DOUBLE    2    /* Data is doubles */
+#define CARRAY_TEXT      3    /* Data is char* */
+#define CARRAY_BLOB      4    /* Data is struct iovec */
+
+#ifdef __cplusplus
+}  /* end of the 'extern "C"' block */
+#endif
+
+#endif /* ifndef _CARRAY_H */
diff --git a/ext/misc/cksumvfs.c b/ext/misc/cksumvfs.c
new file mode 100644
index 0000000000000000000000000000000000000000..2d7f6584ea1b48740ec0ec4be012bcf6617ca632
--- /dev/null
+++ b/ext/misc/cksumvfs.c
@@ -0,0 +1,880 @@
+/*
+** 2020-04-20
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This file implements a VFS shim that writes a checksum on each page
+** of an SQLite database file.  When reading pages, the checksum is verified
+** and an error is raised if the checksum is incorrect.
+**
+** COMPILING
+**
+** This extension requires SQLite 3.32.0 or later.  It uses the
+** sqlite3_database_file_object() interface which was added in
+** version 3.32.0, so it will not link with an earlier version of
+** SQLite.
+**
+** To build this extension as a separately loaded shared library or
+** DLL, use compiler command-lines similar to the following:
+**
+**   (linux)    gcc -fPIC -shared cksumvfs.c -o cksumvfs.so
+**   (mac)      clang -fPIC -dynamiclib cksumvfs.c -o cksumvfs.dylib
+**   (windows)  cl cksumvfs.c -link -dll -out:cksumvfs.dll
+**
+** You may want to add additional compiler options, of course,
+** according to the needs of your project.
+**
+** If you want to statically link this extension with your product,
+** then compile it like any other C-language module but add the
+** "-DSQLITE_CKSUMVFS_STATIC" option so that this module knows that
+** it is being statically linked rather than dynamically linked
+**
+** LOADING
+**
+** To load this extension as a shared library, you first have to
+** bring up a dummy SQLite database connection to use as the argument
+** to the sqlite3_load_extension() API call.  Then you invoke the
+** sqlite3_load_extension() API and shutdown the dummy database
+** connection.  All subsequent database connections that are opened
+** will include this extension.  For example:
+**
+**     sqlite3 *db;
+**     sqlite3_open(":memory:", &db);
+**     sqlite3_load_extension(db, "./cksumvfs");
+**     sqlite3_close(db);
+**
+** If this extension is compiled with -DSQLITE_CKSUMVFS_STATIC and
+** statically linked against the application, initialize it using
+** a single API call as follows:
+**
+**     sqlite3_register_cksumvfs();
+**
+** Cksumvfs is a VFS Shim. When loaded, "cksmvfs" becomes the new
+** default VFS and it uses the prior default VFS as the next VFS
+** down in the stack.  This is normally what you want.  However, in
+** complex situations where multiple VFS shims are being loaded,
+** it might be important to ensure that cksumvfs is loaded in the
+** correct order so that it sequences itself into the default VFS
+** Shim stack in the right order.
+**
+** USING
+**
+** Open database connections using the sqlite3_open() or 
+** sqlite3_open_v2() interfaces, as normal.  Ordinary database files
+** (without a checksum) will operate normally.  Databases with 
+** checksums will return an SQLITE_IOERR_DATA error if a page is
+** encountered that contains an invalid checksum.
+**
+** Checksumming only works on databases that have a reserve-bytes
+** value of exactly 8.  The default value for reserve-bytes is 0.
+** Hence, newly created database files will omit the checksum by
+** default.  To create a database that includes a checksum, change
+** the reserve-bytes value to 8 by runing:
+**
+**    int n = 8;
+**    sqlite3_file_control(db, 0, SQLITE_FCNTL_RESERVE_BYTES, &n);
+**
+** If you do this immediately after creating a new database file,
+** before anything else has been written into the file, then that
+** might be all that you need to do.  Otherwise, the API call
+** above should be followed by:
+**
+**    sqlite3_exec(db, "VACUUM", 0, 0, 0);
+**
+** It never hurts to run the VACUUM, even if you don't need it.
+** If the database is in WAL mode, you should shutdown and
+** reopen all database connections before continuing.
+**
+** From the CLI, use the ".filectrl reserve_bytes 8" command, 
+** followed by "VACUUM;".
+**
+** Note that SQLite allows the number of reserve-bytes to be
+** increased but not decreased.  So if a database file already
+** has a reserve-bytes value greater than 8, there is no way to
+** activate checksumming on that database, other than to dump
+** and restore the database file.  Note also that other extensions
+** might also make use of the reserve-bytes.  Checksumming will
+** be incompatible with those other extensions.
+**
+** VERIFICATION OF CHECKSUMS
+**
+** If any checksum is incorrect, the "PRAGMA quick_check" command
+** will find it.  To verify that checksums are actually enabled
+** and running, use the following query:
+**
+**   SELECT count(*), verify_checksum(data)
+**     FROM sqlite_dbpage
+**    GROUP BY 2;
+**
+** There are three possible outputs form the verify_checksum()
+** function: 1, 0, and NULL.  1 is returned if the checksum is
+** correct.  0 is returned if the checksum is incorrect.  NULL
+** is returned if the page is unreadable.  If checksumming is
+** enabled, the read will fail if the checksum is wrong, so the
+** usual result from verify_checksum() on a bad checksum is NULL.
+**
+** If everything is OK, the query above should return a single
+** row where the second column is 1.  Any other result indicates
+** either that there is a checksum error, or checksum validation
+** is disabled.
+**
+** CONTROLLING CHECKSUM VERIFICATION
+**
+** The cksumvfs extension implements a new PRAGMA statement that can
+** be used to disable, re-enable, or query the status of checksum
+** verification:
+**
+**    PRAGMA checksum_verification;          -- query status
+**    PRAGMA checksum_verification=OFF;      -- disable verification
+**    PRAGMA checksum_verification=ON;       -- re-enable verification
+**
+** The "checksum_verification" pragma will return "1" (true) or "0"
+** (false) if checksum verification is enabled or disabled, respectively.
+** "Verification" in this context means the feature that causes
+** SQLITE_IOERR_DATA errors if a checksum mismatch is detected while
+** reading.  Checksums are always kept up-to-date as long as the
+** reserve-bytes value of the database is 8, regardless of the setting
+** of this pragma.  Checksum verification can be disabled (for example)
+** to do forensic analysis of a database that has previously reported
+** a checksum error.
+**
+** The "checksum_verification" pragma will always respond with "0" if
+** the database file does not have a reserve-bytes value of 8.  The
+** pragma will return no rows at all if the cksumvfs extension is
+** not loaded.
+**
+** IMPLEMENTATION NOTES
+**
+** The checksum is stored in the last 8 bytes of each page.  This
+** module only operates if the "bytes of reserved space on each page"
+** value at offset 20 the SQLite database header is exactly 8.  If
+** the reserved-space value is not 8, this module is a no-op.
+*/
+#if defined(SQLITE_AMALGAMATION) && !defined(SQLITE_CKSUMVFS_STATIC)
+# define SQLITE_CKSUMVFS_STATIC
+#endif
+#ifdef SQLITE_CKSUMVFS_STATIC
+# include "sqlite3.h"
+#else
+# include "sqlite3ext.h"
+  SQLITE_EXTENSION_INIT1
+#endif
+#include <string.h>
+#include <assert.h>
+
+
+/*
+** Forward declaration of objects used by this utility
+*/
+typedef struct sqlite3_vfs CksmVfs;
+typedef struct CksmFile CksmFile;
+
+/*
+** Useful datatype abbreviations
+*/
+#if !defined(SQLITE_AMALGAMATION)
+  typedef unsigned char u8;
+  typedef unsigned int u32;
+#endif
+
+/* Access to a lower-level VFS that (might) implement dynamic loading,
+** access to randomness, etc.
+*/
+#define ORIGVFS(p)  ((sqlite3_vfs*)((p)->pAppData))
+#define ORIGFILE(p) ((sqlite3_file*)(((CksmFile*)(p))+1))
+
+/* An open file */
+struct CksmFile {
+  sqlite3_file base;    /* IO methods */
+  const char *zFName;   /* Original name of the file */
+  char computeCksm;     /* True to compute checksums.
+                        ** Always true if reserve size is 8. */
+  char verifyCksm;      /* True to verify checksums */
+  char isWal;           /* True if processing a WAL file */
+  char inCkpt;          /* Currently doing a checkpoint */
+  CksmFile *pPartner;   /* Ptr from WAL to main-db, or from main-db to WAL */
+};
+
+/*
+** Methods for CksmFile
+*/
+static int cksmClose(sqlite3_file*);
+static int cksmRead(sqlite3_file*, void*, int iAmt, sqlite3_int64 iOfst);
+static int cksmWrite(sqlite3_file*,const void*,int iAmt, sqlite3_int64 iOfst);
+static int cksmTruncate(sqlite3_file*, sqlite3_int64 size);
+static int cksmSync(sqlite3_file*, int flags);
+static int cksmFileSize(sqlite3_file*, sqlite3_int64 *pSize);
+static int cksmLock(sqlite3_file*, int);
+static int cksmUnlock(sqlite3_file*, int);
+static int cksmCheckReservedLock(sqlite3_file*, int *pResOut);
+static int cksmFileControl(sqlite3_file*, int op, void *pArg);
+static int cksmSectorSize(sqlite3_file*);
+static int cksmDeviceCharacteristics(sqlite3_file*);
+static int cksmShmMap(sqlite3_file*, int iPg, int pgsz, int, void volatile**);
+static int cksmShmLock(sqlite3_file*, int offset, int n, int flags);
+static void cksmShmBarrier(sqlite3_file*);
+static int cksmShmUnmap(sqlite3_file*, int deleteFlag);
+static int cksmFetch(sqlite3_file*, sqlite3_int64 iOfst, int iAmt, void **pp);
+static int cksmUnfetch(sqlite3_file*, sqlite3_int64 iOfst, void *p);
+
+/*
+** Methods for CksmVfs
+*/
+static int cksmOpen(sqlite3_vfs*, const char *, sqlite3_file*, int , int *);
+static int cksmDelete(sqlite3_vfs*, const char *zName, int syncDir);
+static int cksmAccess(sqlite3_vfs*, const char *zName, int flags, int *);
+static int cksmFullPathname(sqlite3_vfs*, const char *zName, int, char *zOut);
+static void *cksmDlOpen(sqlite3_vfs*, const char *zFilename);
+static void cksmDlError(sqlite3_vfs*, int nByte, char *zErrMsg);
+static void (*cksmDlSym(sqlite3_vfs *pVfs, void *p, const char*zSym))(void);
+static void cksmDlClose(sqlite3_vfs*, void*);
+static int cksmRandomness(sqlite3_vfs*, int nByte, char *zOut);
+static int cksmSleep(sqlite3_vfs*, int microseconds);
+static int cksmCurrentTime(sqlite3_vfs*, double*);
+static int cksmGetLastError(sqlite3_vfs*, int, char *);
+static int cksmCurrentTimeInt64(sqlite3_vfs*, sqlite3_int64*);
+static int cksmSetSystemCall(sqlite3_vfs*, const char*,sqlite3_syscall_ptr);
+static sqlite3_syscall_ptr cksmGetSystemCall(sqlite3_vfs*, const char *z);
+static const char *cksmNextSystemCall(sqlite3_vfs*, const char *zName);
+
+static sqlite3_vfs cksm_vfs = {
+  3,                            /* iVersion (set when registered) */
+  0,                            /* szOsFile (set when registered) */
+  1024,                         /* mxPathname */
+  0,                            /* pNext */
+  "cksmvfs",                    /* zName */
+  0,                            /* pAppData (set when registered) */ 
+  cksmOpen,                     /* xOpen */
+  cksmDelete,                   /* xDelete */
+  cksmAccess,                   /* xAccess */
+  cksmFullPathname,             /* xFullPathname */
+  cksmDlOpen,                   /* xDlOpen */
+  cksmDlError,                  /* xDlError */
+  cksmDlSym,                    /* xDlSym */
+  cksmDlClose,                  /* xDlClose */
+  cksmRandomness,               /* xRandomness */
+  cksmSleep,                    /* xSleep */
+  cksmCurrentTime,              /* xCurrentTime */
+  cksmGetLastError,             /* xGetLastError */
+  cksmCurrentTimeInt64,         /* xCurrentTimeInt64 */
+  cksmSetSystemCall,            /* xSetSystemCall */
+  cksmGetSystemCall,            /* xGetSystemCall */
+  cksmNextSystemCall            /* xNextSystemCall */
+};
+
+static const sqlite3_io_methods cksm_io_methods = {
+  3,                              /* iVersion */
+  cksmClose,                      /* xClose */
+  cksmRead,                       /* xRead */
+  cksmWrite,                      /* xWrite */
+  cksmTruncate,                   /* xTruncate */
+  cksmSync,                       /* xSync */
+  cksmFileSize,                   /* xFileSize */
+  cksmLock,                       /* xLock */
+  cksmUnlock,                     /* xUnlock */
+  cksmCheckReservedLock,          /* xCheckReservedLock */
+  cksmFileControl,                /* xFileControl */
+  cksmSectorSize,                 /* xSectorSize */
+  cksmDeviceCharacteristics,      /* xDeviceCharacteristics */
+  cksmShmMap,                     /* xShmMap */
+  cksmShmLock,                    /* xShmLock */
+  cksmShmBarrier,                 /* xShmBarrier */
+  cksmShmUnmap,                   /* xShmUnmap */
+  cksmFetch,                      /* xFetch */
+  cksmUnfetch                     /* xUnfetch */
+};
+
+/* Do byte swapping on a unsigned 32-bit integer */
+#define BYTESWAP32(x) ( \
+    (((x)&0x000000FF)<<24) + (((x)&0x0000FF00)<<8)  \
+  + (((x)&0x00FF0000)>>8)  + (((x)&0xFF000000)>>24) \
+)
+
+/* Compute a checksum on a buffer */
+static void cksmCompute(
+  u8 *a,           /* Content to be checksummed */
+  int nByte,       /* Bytes of content in a[].  Must be a multiple of 8. */
+  u8 *aOut         /* OUT: Final 8-byte checksum value output */
+){
+  u32 s1 = 0, s2 = 0;
+  u32 *aData = (u32*)a;
+  u32 *aEnd = (u32*)&a[nByte];
+  u32 x = 1;
+
+  assert( nByte>=8 );
+  assert( (nByte&0x00000007)==0 );
+  assert( nByte<=65536 );
+
+  if( 1 == *(u8*)&x ){
+    /* Little-endian */
+    do {
+      s1 += *aData++ + s2;
+      s2 += *aData++ + s1;
+    }while( aData<aEnd );
+  }else{
+    /* Big-endian */
+    do {
+      s1 += BYTESWAP32(aData[0]) + s2;
+      s2 += BYTESWAP32(aData[1]) + s1;
+      aData += 2;
+    }while( aData<aEnd );
+    s1 = BYTESWAP32(s1);
+    s2 = BYTESWAP32(s2);
+  }
+  memcpy(aOut, &s1, 4);
+  memcpy(aOut+4, &s2, 4);
+}
+
+/*
+** SQL function:    verify_checksum(BLOB)
+**
+** Return 0 or 1 if the checksum is invalid or valid.  Or return
+** NULL if the input is not a BLOB that is the right size for a
+** database page.
+*/
+static void cksmVerifyFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  int nByte;
+  u8 *data;
+  u8 cksum[8];
+  data = (u8*)sqlite3_value_blob(argv[0]);
+  if( data==0 ) return;
+  if( sqlite3_value_type(argv[0])!=SQLITE_BLOB ) return;
+  nByte = sqlite3_value_bytes(argv[0]);
+  if( nByte<512 || nByte>65536 || (nByte & (nByte-1))!=0 ) return;
+  cksmCompute(data, nByte-8, cksum);
+  sqlite3_result_int(context, memcmp(data+nByte-8,cksum,8)==0);
+}
+
+#ifdef SQLITE_CKSUMVFS_INIT_FUNCNAME
+/*
+** SQL function:    initialize_cksumvfs(SCHEMANAME)
+**
+** This SQL functions (whose name is actually determined at compile-time
+** by the value of the SQLITE_CKSUMVFS_INIT_FUNCNAME macro) invokes:
+**
+**   sqlite3_file_control(db, SCHEMANAME, SQLITE_FCNTL_RESERVE_BYTE, &n);
+**
+** In order to set the reserve bytes value to 8, so that cksumvfs will
+** operation.  This feature is provided (if and only if the
+** SQLITE_CKSUMVFS_INIT_FUNCNAME compile-time option is set to a string
+** which is the name of the SQL function) so as to provide the ability
+** to invoke the file-control in programming languages that lack
+** direct access to the sqlite3_file_control() interface (ex: Java).
+**
+** This interface is undocumented, apart from this comment.  Usage
+** example:
+**
+**    1.  Compile with -DSQLITE_CKSUMVFS_INIT_FUNCNAME="ckvfs_init"
+**    2.  Run:  "SELECT cksum_init('main'); VACUUM;"
+*/
+static void cksmInitFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  int nByte = 8;
+  const char *zSchemaName = (const char*)sqlite3_value_text(argv[0]);
+  sqlite3 *db = sqlite3_context_db_handle(context);
+  sqlite3_file_control(db, zSchemaName, SQLITE_FCNTL_RESERVE_BYTES, &nByte);
+  /* Return NULL */
+}
+#endif /* SQLITE_CKSUMBFS_INIT_FUNCNAME */
+
+/*
+** Close a cksm-file.
+*/
+static int cksmClose(sqlite3_file *pFile){
+  CksmFile *p = (CksmFile *)pFile;
+  if( p->pPartner ){
+    assert( p->pPartner->pPartner==p );
+    p->pPartner->pPartner = 0;
+    p->pPartner = 0;
+  }
+  pFile = ORIGFILE(pFile);
+  return pFile->pMethods->xClose(pFile);
+}
+
+/*
+** Set the computeCkSm and verifyCksm flags, if they need to be
+** changed.
+*/
+static void cksmSetFlags(CksmFile *p, int hasCorrectReserveSize){
+  if( hasCorrectReserveSize!=p->computeCksm ){
+    p->computeCksm = p->verifyCksm = hasCorrectReserveSize;
+    if( p->pPartner ){
+      p->pPartner->verifyCksm = hasCorrectReserveSize;
+      p->pPartner->computeCksm = hasCorrectReserveSize;
+    }
+  }
+}
+
+/*
+** Read data from a cksm-file.
+*/
+static int cksmRead(
+  sqlite3_file *pFile, 
+  void *zBuf, 
+  int iAmt, 
+  sqlite_int64 iOfst
+){
+  int rc;
+  CksmFile *p = (CksmFile *)pFile;
+  pFile = ORIGFILE(pFile);
+  rc = pFile->pMethods->xRead(pFile, zBuf, iAmt, iOfst);
+  if( rc==SQLITE_OK ){
+    if( iOfst==0 && iAmt>=100 && (
+          memcmp(zBuf,"SQLite format 3",16)==0 || memcmp(zBuf,"ZV-",3)==0 
+    )){
+      u8 *d = (u8*)zBuf;
+      char hasCorrectReserveSize = (d[20]==8);
+      cksmSetFlags(p, hasCorrectReserveSize);
+    }
+    /* Verify the checksum if
+    **    (1) the size indicates that we are dealing with a complete
+    **        database page
+    **    (2) checksum verification is enabled
+    **    (3) we are not in the middle of checkpoint
+    */
+    if( iAmt>=512 && (iAmt & (iAmt-1))==0   /* (1) */
+     && p->verifyCksm                       /* (2) */
+     && !p->inCkpt                          /* (3) */
+    ){
+      u8 cksum[8];
+      cksmCompute((u8*)zBuf, iAmt-8, cksum);
+      if( memcmp((u8*)zBuf+iAmt-8, cksum, 8)!=0 ){
+        sqlite3_log(SQLITE_IOERR_DATA,
+           "checksum fault offset %lld of \"%s\"",
+           iOfst, p->zFName);
+        rc = SQLITE_IOERR_DATA;
+      }
+    }
+  }
+  return rc;
+}
+
+/*
+** Write data to a cksm-file.
+*/
+static int cksmWrite(
+  sqlite3_file *pFile,
+  const void *zBuf,
+  int iAmt,
+  sqlite_int64 iOfst
+){
+  CksmFile *p = (CksmFile *)pFile;
+  pFile = ORIGFILE(pFile);
+  if( iOfst==0 && iAmt>=100 && (
+        memcmp(zBuf,"SQLite format 3",16)==0 || memcmp(zBuf,"ZV-",3)==0 
+  )){
+    u8 *d = (u8*)zBuf;
+    char hasCorrectReserveSize = (d[20]==8);
+    cksmSetFlags(p, hasCorrectReserveSize);
+  }
+  /* If the write size is appropriate for a database page and if
+  ** checksums where ever enabled, then it will be safe to compute
+  ** the checksums.  The reserve byte size might have increased, but
+  ** it will never decrease.  And because it cannot decrease, the
+  ** checksum will not overwrite anything.
+  */
+  if( iAmt>=512
+   && p->computeCksm
+   && !p->inCkpt
+  ){
+    cksmCompute((u8*)zBuf, iAmt-8, ((u8*)zBuf)+iAmt-8);
+  }
+  return pFile->pMethods->xWrite(pFile, zBuf, iAmt, iOfst);
+}
+
+/*
+** Truncate a cksm-file.
+*/
+static int cksmTruncate(sqlite3_file *pFile, sqlite_int64 size){
+  pFile = ORIGFILE(pFile);
+  return pFile->pMethods->xTruncate(pFile, size);
+}
+
+/*
+** Sync a cksm-file.
+*/
+static int cksmSync(sqlite3_file *pFile, int flags){
+  pFile = ORIGFILE(pFile);
+  return pFile->pMethods->xSync(pFile, flags);
+}
+
+/*
+** Return the current file-size of a cksm-file.
+*/
+static int cksmFileSize(sqlite3_file *pFile, sqlite_int64 *pSize){
+  CksmFile *p = (CksmFile *)pFile;
+  pFile = ORIGFILE(p);
+  return pFile->pMethods->xFileSize(pFile, pSize);
+}
+
+/*
+** Lock a cksm-file.
+*/
+static int cksmLock(sqlite3_file *pFile, int eLock){
+  pFile = ORIGFILE(pFile);
+  return pFile->pMethods->xLock(pFile, eLock);
+}
+
+/*
+** Unlock a cksm-file.
+*/
+static int cksmUnlock(sqlite3_file *pFile, int eLock){
+  pFile = ORIGFILE(pFile);
+  return pFile->pMethods->xUnlock(pFile, eLock);
+}
+
+/*
+** Check if another file-handle holds a RESERVED lock on a cksm-file.
+*/
+static int cksmCheckReservedLock(sqlite3_file *pFile, int *pResOut){
+  pFile = ORIGFILE(pFile);
+  return pFile->pMethods->xCheckReservedLock(pFile, pResOut);
+}
+
+/*
+** File control method. For custom operations on a cksm-file.
+*/
+static int cksmFileControl(sqlite3_file *pFile, int op, void *pArg){
+  int rc;
+  CksmFile *p = (CksmFile*)pFile;
+  pFile = ORIGFILE(pFile);
+  if( op==SQLITE_FCNTL_PRAGMA ){
+    char **azArg = (char**)pArg;
+    assert( azArg[1]!=0 );
+    if( sqlite3_stricmp(azArg[1],"checksum_verification")==0 ){
+      char *zArg = azArg[2];
+      if( zArg!=0 ){
+        if( (zArg[0]>='1' && zArg[0]<='9')
+         || sqlite3_strlike("enable%",zArg,0)==0
+         || sqlite3_stricmp("yes",zArg)==0
+         || sqlite3_stricmp("on",zArg)==0
+        ){
+          p->verifyCksm = p->computeCksm;
+        }else{
+          p->verifyCksm = 0;
+        }
+        if( p->pPartner ) p->pPartner->verifyCksm = p->verifyCksm;
+      }
+      azArg[0] = sqlite3_mprintf("%d",p->verifyCksm);
+      return SQLITE_OK;
+    }else if( p->computeCksm && azArg[2]!=0
+           && sqlite3_stricmp(azArg[1], "page_size")==0 ){
+      /* Do not allow page size changes on a checksum database */
+      return SQLITE_OK;
+    }
+  }else if( op==SQLITE_FCNTL_CKPT_START || op==SQLITE_FCNTL_CKPT_DONE ){
+    p->inCkpt = op==SQLITE_FCNTL_CKPT_START;
+    if( p->pPartner ) p->pPartner->inCkpt = p->inCkpt;
+  }else if( op==SQLITE_FCNTL_CKSM_FILE ){
+    /* This VFS needs to obtain a pointer to the corresponding database
+    ** file handle from within xOpen() calls to open wal files. To do this,
+    ** it uses the sqlite3_database_file_object() API to obtain a pointer
+    ** to the file-handle used by SQLite to access the db file. This is
+    ** fine if cksmvfs happens to be the top-level VFS, but not if there
+    ** are one or more wrapper VFS. To handle this case, this file-control
+    ** is used to extract the cksmvfs file-handle from any wrapper file 
+    ** handle.  */
+    sqlite3_file **ppFile = (sqlite3_file**)pArg;
+    *ppFile = (sqlite3_file*)p;
+    return SQLITE_OK;
+  }
+  rc = pFile->pMethods->xFileControl(pFile, op, pArg);
+  if( rc==SQLITE_OK && op==SQLITE_FCNTL_VFSNAME ){
+    *(char**)pArg = sqlite3_mprintf("cksm/%z", *(char**)pArg);
+  }
+  return rc;
+}
+
+/*
+** Return the sector-size in bytes for a cksm-file.
+*/
+static int cksmSectorSize(sqlite3_file *pFile){
+  pFile = ORIGFILE(pFile);
+  return pFile->pMethods->xSectorSize(pFile);
+}
+
+/*
+** Return the device characteristic flags supported by a cksm-file.
+*/
+static int cksmDeviceCharacteristics(sqlite3_file *pFile){
+  pFile = ORIGFILE(pFile);
+  return pFile->pMethods->xDeviceCharacteristics(pFile);
+}
+
+/* Create a shared memory file mapping */
+static int cksmShmMap(
+  sqlite3_file *pFile,
+  int iPg,
+  int pgsz,
+  int bExtend,
+  void volatile **pp
+){
+  pFile = ORIGFILE(pFile);
+  return pFile->pMethods->xShmMap(pFile,iPg,pgsz,bExtend,pp);
+}
+
+/* Perform locking on a shared-memory segment */
+static int cksmShmLock(sqlite3_file *pFile, int offset, int n, int flags){
+  pFile = ORIGFILE(pFile);
+  return pFile->pMethods->xShmLock(pFile,offset,n,flags);
+}
+
+/* Memory barrier operation on shared memory */
+static void cksmShmBarrier(sqlite3_file *pFile){
+  pFile = ORIGFILE(pFile);
+  pFile->pMethods->xShmBarrier(pFile);
+}
+
+/* Unmap a shared memory segment */
+static int cksmShmUnmap(sqlite3_file *pFile, int deleteFlag){
+  pFile = ORIGFILE(pFile);
+  return pFile->pMethods->xShmUnmap(pFile,deleteFlag);
+}
+
+/* Fetch a page of a memory-mapped file */
+static int cksmFetch(
+  sqlite3_file *pFile,
+  sqlite3_int64 iOfst,
+  int iAmt,
+  void **pp
+){
+  CksmFile *p = (CksmFile *)pFile;
+  if( p->computeCksm ){
+    *pp = 0;
+    return SQLITE_OK;
+  }
+  pFile = ORIGFILE(pFile);
+  if( pFile->pMethods->iVersion>2 && pFile->pMethods->xFetch ){
+    return pFile->pMethods->xFetch(pFile, iOfst, iAmt, pp);
+  }
+  *pp = 0;
+  return SQLITE_OK;
+}
+
+/* Release a memory-mapped page */
+static int cksmUnfetch(sqlite3_file *pFile, sqlite3_int64 iOfst, void *pPage){
+  pFile = ORIGFILE(pFile);
+  if( pFile->pMethods->iVersion>2 && pFile->pMethods->xUnfetch ){
+    return pFile->pMethods->xUnfetch(pFile, iOfst, pPage);
+  }
+  return SQLITE_OK;
+}
+
+/*
+** Open a cksm file handle.
+*/
+static int cksmOpen(
+  sqlite3_vfs *pVfs,
+  const char *zName,
+  sqlite3_file *pFile,
+  int flags,
+  int *pOutFlags
+){
+  CksmFile *p;
+  sqlite3_file *pSubFile;
+  sqlite3_vfs *pSubVfs;
+  int rc;
+  pSubVfs = ORIGVFS(pVfs);
+  if( (flags & (SQLITE_OPEN_MAIN_DB|SQLITE_OPEN_WAL))==0 ){
+    return pSubVfs->xOpen(pSubVfs, zName, pFile, flags, pOutFlags);
+  }
+  p = (CksmFile*)pFile;
+  memset(p, 0, sizeof(*p));
+  pSubFile = ORIGFILE(pFile);
+  pFile->pMethods = &cksm_io_methods;
+  rc = pSubVfs->xOpen(pSubVfs, zName, pSubFile, flags, pOutFlags);
+  if( rc ) goto cksm_open_done;
+  if( flags & SQLITE_OPEN_WAL ){
+    sqlite3_file *pDb = sqlite3_database_file_object(zName);
+    rc = pDb->pMethods->xFileControl(pDb, SQLITE_FCNTL_CKSM_FILE, (void*)&pDb);
+    assert( rc==SQLITE_OK );
+    p->pPartner = (CksmFile*)pDb;
+    assert( p->pPartner->pPartner==0 );
+    p->pPartner->pPartner = p;
+    p->isWal = 1;
+    p->computeCksm = p->pPartner->computeCksm;
+  }else{
+    p->isWal = 0;
+    p->computeCksm = 0;
+  }
+  p->zFName = zName;
+cksm_open_done:
+  if( rc ) pFile->pMethods = 0;
+  return rc;
+}
+
+/*
+** All other VFS methods are pass-thrus.
+*/
+static int cksmDelete(sqlite3_vfs *pVfs, const char *zPath, int dirSync){
+  return ORIGVFS(pVfs)->xDelete(ORIGVFS(pVfs), zPath, dirSync);
+}
+static int cksmAccess(
+  sqlite3_vfs *pVfs, 
+  const char *zPath, 
+  int flags, 
+  int *pResOut
+){
+  return ORIGVFS(pVfs)->xAccess(ORIGVFS(pVfs), zPath, flags, pResOut);
+}
+static int cksmFullPathname(
+  sqlite3_vfs *pVfs, 
+  const char *zPath, 
+  int nOut, 
+  char *zOut
+){
+  return ORIGVFS(pVfs)->xFullPathname(ORIGVFS(pVfs),zPath,nOut,zOut);
+}
+static void *cksmDlOpen(sqlite3_vfs *pVfs, const char *zPath){
+  return ORIGVFS(pVfs)->xDlOpen(ORIGVFS(pVfs), zPath);
+}
+static void cksmDlError(sqlite3_vfs *pVfs, int nByte, char *zErrMsg){
+  ORIGVFS(pVfs)->xDlError(ORIGVFS(pVfs), nByte, zErrMsg);
+}
+static void (*cksmDlSym(sqlite3_vfs *pVfs, void *p, const char *zSym))(void){
+  return ORIGVFS(pVfs)->xDlSym(ORIGVFS(pVfs), p, zSym);
+}
+static void cksmDlClose(sqlite3_vfs *pVfs, void *pHandle){
+  ORIGVFS(pVfs)->xDlClose(ORIGVFS(pVfs), pHandle);
+}
+static int cksmRandomness(sqlite3_vfs *pVfs, int nByte, char *zBufOut){
+  return ORIGVFS(pVfs)->xRandomness(ORIGVFS(pVfs), nByte, zBufOut);
+}
+static int cksmSleep(sqlite3_vfs *pVfs, int nMicro){
+  return ORIGVFS(pVfs)->xSleep(ORIGVFS(pVfs), nMicro);
+}
+static int cksmCurrentTime(sqlite3_vfs *pVfs, double *pTimeOut){
+  return ORIGVFS(pVfs)->xCurrentTime(ORIGVFS(pVfs), pTimeOut);
+}
+static int cksmGetLastError(sqlite3_vfs *pVfs, int a, char *b){
+  return ORIGVFS(pVfs)->xGetLastError(ORIGVFS(pVfs), a, b);
+}
+static int cksmCurrentTimeInt64(sqlite3_vfs *pVfs, sqlite3_int64 *p){
+  sqlite3_vfs *pOrig = ORIGVFS(pVfs);
+  int rc;
+  assert( pOrig->iVersion>=2 );
+  if( pOrig->xCurrentTimeInt64 ){
+    rc = pOrig->xCurrentTimeInt64(pOrig, p);
+  }else{
+    double r;
+    rc = pOrig->xCurrentTime(pOrig, &r);
+    *p = (sqlite3_int64)(r*86400000.0);
+  }
+  return rc;
+}
+static int cksmSetSystemCall(
+  sqlite3_vfs *pVfs,
+  const char *zName,
+  sqlite3_syscall_ptr pCall
+){
+  return ORIGVFS(pVfs)->xSetSystemCall(ORIGVFS(pVfs),zName,pCall);
+}
+static sqlite3_syscall_ptr cksmGetSystemCall(
+  sqlite3_vfs *pVfs,
+  const char *zName
+){
+  return ORIGVFS(pVfs)->xGetSystemCall(ORIGVFS(pVfs),zName);
+}
+static const char *cksmNextSystemCall(sqlite3_vfs *pVfs, const char *zName){
+  return ORIGVFS(pVfs)->xNextSystemCall(ORIGVFS(pVfs), zName);
+}
+
+/* Register the verify_checksum() SQL function.
+*/
+static int cksmRegisterFunc(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  int rc;
+  if( db==0 ) return SQLITE_OK;
+  rc = sqlite3_create_function(db, "verify_checksum", 1,
+                   SQLITE_UTF8|SQLITE_INNOCUOUS|SQLITE_DETERMINISTIC,
+                   0, cksmVerifyFunc, 0, 0);
+#ifdef SQLITE_CKSUMVFS_INIT_FUNCNAME
+  (void)sqlite3_create_function(db, SQLITE_CKSUMVFS_INIT_FUNCNAME, 1,
+                   SQLITE_UTF8|SQLITE_DIRECTONLY,
+                   0, cksmInitFunc, 0, 0);
+#endif
+  return rc;
+}
+
+/*
+** Register the cksum VFS as the default VFS for the system.
+** Also make arrangements to automatically register the "verify_checksum()"
+** SQL function on each new database connection.
+*/
+static int cksmRegisterVfs(void){
+  int rc = SQLITE_OK;
+  sqlite3_vfs *pOrig;
+  if( sqlite3_vfs_find("cksmvfs")!=0 ) return SQLITE_OK;
+  pOrig = sqlite3_vfs_find(0);
+  if( pOrig==0 ) return SQLITE_ERROR;
+  cksm_vfs.iVersion = pOrig->iVersion;
+  cksm_vfs.pAppData = pOrig;
+  cksm_vfs.szOsFile = pOrig->szOsFile + sizeof(CksmFile);
+  rc = sqlite3_vfs_register(&cksm_vfs, 1);
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_auto_extension((void(*)(void))cksmRegisterFunc);
+  }
+  return rc;
+}
+
+#if defined(SQLITE_CKSUMVFS_STATIC)
+/* This variant of the initializer runs when the extension is
+** statically linked.
+*/
+int sqlite3_register_cksumvfs(const char *NotUsed){
+  (void)NotUsed;
+  return cksmRegisterVfs();
+}
+int sqlite3_unregister_cksumvfs(void){
+  if( sqlite3_vfs_find("cksmvfs") ){
+    sqlite3_vfs_unregister(&cksm_vfs);
+    sqlite3_cancel_auto_extension((void(*)(void))cksmRegisterFunc);
+  }
+  return SQLITE_OK;
+}
+#endif /* defined(SQLITE_CKSUMVFS_STATIC */
+
+#if !defined(SQLITE_CKSUMVFS_STATIC)
+/* This variant of the initializer function is used when the
+** extension is shared library to be loaded at run-time.
+*/
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+/* 
+** This routine is called by sqlite3_load_extension() when the
+** extension is first loaded.
+***/
+int sqlite3_cksumvfs_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  int rc;
+  SQLITE_EXTENSION_INIT2(pApi);
+  (void)pzErrMsg; /* not used */
+  rc = cksmRegisterFunc(db, 0, 0);
+  if( rc==SQLITE_OK ){
+    rc = cksmRegisterVfs();
+  }
+  if( rc==SQLITE_OK ) rc = SQLITE_OK_LOAD_PERMANENTLY;
+  return rc;
+}
+#endif /* !defined(SQLITE_CKSUMVFS_STATIC) */
diff --git a/ext/misc/closure.c b/ext/misc/closure.c
new file mode 100644
index 0000000000000000000000000000000000000000..79a5a21d1e6f43a6aa3b0c0fea9ecd114bba7e76
--- /dev/null
+++ b/ext/misc/closure.c
@@ -0,0 +1,966 @@
+/*
+** 2013-04-16
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** This file contains code for a virtual table that finds the transitive
+** closure of a parent/child relationship in a real table.  The virtual 
+** table is called "transitive_closure".
+**
+** A transitive_closure virtual table is created like this:
+**
+**     CREATE VIRTUAL TABLE x USING transitive_closure(
+**        tablename=<tablename>,      -- T
+**        idcolumn=<columnname>,      -- X
+**        parentcolumn=<columnname>   -- P
+**     );
+**
+** When it is created, the new transitive_closure table may be supplied 
+** with default values for the name of a table T and columns T.X and T.P.
+** The T.X and T.P columns must contain integers.  The ideal case is for 
+** T.X to be the INTEGER PRIMARY KEY.  The T.P column should reference
+** the T.X column. The row referenced by T.P is the parent of the current row.
+**
+** The tablename, idcolumn, and parentcolumn supplied by the CREATE VIRTUAL
+** TABLE statement may be overridden in individual queries by including
+** terms like tablename='newtable', idcolumn='id2', or 
+** parentcolumn='parent3' in the WHERE clause of the query.
+**
+** For efficiency, it is essential that there be an index on the P column:
+**
+**    CREATE Tidx1 ON T(P)
+**
+** Suppose a specific instance of the closure table is as follows:
+**
+**    CREATE VIRTUAL TABLE ct1 USING transitive_closure(
+**       tablename='group',
+**       idcolumn='groupId',
+**       parentcolumn='parentId'
+**    );
+**
+** Such an instance of the transitive_closure virtual table would be
+** appropriate for walking a tree defined using a table like this, for example:
+**
+**    CREATE TABLE group(
+**      groupId INTEGER PRIMARY KEY,
+**      parentId INTEGER REFERENCES group
+**    );
+**    CREATE INDEX group_idx1 ON group(parentId);
+**
+** The group table above would presumably have other application-specific
+** fields.  The key point here is that rows of the group table form a
+** tree.  The purpose of the ct1 virtual table is to easily extract
+** branches of that tree.
+**
+** Once it has been created, the ct1 virtual table can be queried
+** as follows:
+**
+**    SELECT * FROM element
+**     WHERE element.groupId IN (SELECT id FROM ct1 WHERE root=?1);
+**
+** The above query will return all elements that are part of group ?1
+** or children of group ?1 or grand-children of ?1 and so forth for all
+** descendents of group ?1.  The same query can be formulated as a join:
+**
+**    SELECT element.* FROM element, ct1
+**     WHERE element.groupid=ct1.id
+**       AND ct1.root=?1;
+**
+** The depth of the transitive_closure (the number of generations of
+** parent/child relations to follow) can be limited by setting "depth"
+** column in the WHERE clause.  So, for example, the following query
+** finds only children and grandchildren but no further descendents:
+**
+**    SELECT element.* FROM element, ct1
+**     WHERE element.groupid=ct1.id
+**       AND ct1.root=?1
+**       AND ct1.depth<=2;
+**
+** The "ct1.depth<=2" term could be a strict equality "ct1.depth=2" in
+** order to find only the grandchildren of ?1, not ?1 itself or the
+** children of ?1.
+** 
+** The root=?1 term must be supplied in WHERE clause or else the query
+** of the ct1 virtual table will return an empty set.  The tablename,
+** idcolumn, and parentcolumn attributes can be overridden in the WHERE
+** clause if desired.  So, for example, the ct1 table could be repurposed
+** to find ancestors rather than descendents by inverting the roles of
+** the idcolumn and parentcolumn:
+**
+**    SELECT element.* FROM element, ct1
+**     WHERE element.groupid=ct1.id
+**       AND ct1.root=?1
+**       AND ct1.idcolumn='parentId'
+**       AND ct1.parentcolumn='groupId';
+**
+** Multiple calls to ct1 could be combined.  For example, the following
+** query finds all elements that "cousins" of groupId ?1.  That is to say
+** elements where the groupId is a grandchild of the grandparent of ?1.
+** (This definition of "cousins" also includes siblings and self.)
+**
+**    SELECT element.* FROM element, ct1
+**     WHERE element.groupId=ct1.id
+**       AND ct1.depth=2
+**       AND ct1.root IN (SELECT id FROM ct1
+**                         WHERE root=?1
+**                           AND depth=2
+**                           AND idcolumn='parentId'
+**                           AND parentcolumn='groupId');
+**
+** In our example, the group.groupId column is unique and thus the
+** subquery will return exactly one row.  For that reason, the IN
+** operator could be replaced by "=" to get the same result.  But
+** in the general case where the idcolumn is not unique, an IN operator
+** would be required for this kind of query.
+**
+** Note that because the tablename, idcolumn, and parentcolumn can
+** all be specified in the query, it is possible for an application
+** to define a single transitive_closure virtual table for use on lots
+** of different hierarchy tables.  One might say:
+**
+**     CREATE VIRTUAL TABLE temp.closure USING transitive_closure;
+**
+** As each database connection is being opened.  Then the application
+** would always have a "closure" virtual table handy to use for querying.
+**
+**    SELECT element.* FROM element, closure
+**     WHERE element.groupid=ct1.id
+**       AND closure.root=?1
+**       AND closure.tablename='group'
+**       AND closure.idname='groupId'
+**       AND closure.parentname='parentId';
+**
+** See the documentation at http://www.sqlite.org/loadext.html for information
+** on how to compile and use loadable extensions such as this one.
+*/
+#include "sqlite3ext.h"
+SQLITE_EXTENSION_INIT1
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <stdio.h>
+#include <ctype.h>
+
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+
+/*
+** Forward declaration of objects used by this implementation
+*/
+typedef struct closure_vtab closure_vtab;
+typedef struct closure_cursor closure_cursor;
+typedef struct closure_queue closure_queue;
+typedef struct closure_avl closure_avl;
+
+/*****************************************************************************
+** AVL Tree implementation
+*/
+/*
+** Objects that want to be members of the AVL tree should embedded an
+** instance of this structure.
+*/
+struct closure_avl {
+  sqlite3_int64 id;     /* Id of this entry in the table */
+  int iGeneration;      /* Which generation is this entry part of */
+  closure_avl *pList;   /* A linked list of nodes */
+  closure_avl *pBefore; /* Other elements less than id */
+  closure_avl *pAfter;  /* Other elements greater than id */
+  closure_avl *pUp;     /* Parent element */
+  short int height;     /* Height of this node.  Leaf==1 */
+  short int imbalance;  /* Height difference between pBefore and pAfter */
+};
+
+/* Recompute the closure_avl.height and closure_avl.imbalance fields for p.
+** Assume that the children of p have correct heights.
+*/
+static void closureAvlRecomputeHeight(closure_avl *p){
+  short int hBefore = p->pBefore ? p->pBefore->height : 0;
+  short int hAfter = p->pAfter ? p->pAfter->height : 0;
+  p->imbalance = hBefore - hAfter;  /* -: pAfter higher.  +: pBefore higher */
+  p->height = (hBefore>hAfter ? hBefore : hAfter)+1;
+}
+
+/*
+**     P                B
+**    / \              / \
+**   B   Z    ==>     X   P
+**  / \                  / \
+** X   Y                Y   Z
+**
+*/
+static closure_avl *closureAvlRotateBefore(closure_avl *pP){
+  closure_avl *pB = pP->pBefore;
+  closure_avl *pY = pB->pAfter;
+  pB->pUp = pP->pUp;
+  pB->pAfter = pP;
+  pP->pUp = pB;
+  pP->pBefore = pY;
+  if( pY ) pY->pUp = pP;
+  closureAvlRecomputeHeight(pP);
+  closureAvlRecomputeHeight(pB);
+  return pB;
+}
+
+/*
+**     P                A
+**    / \              / \
+**   X   A    ==>     P   Z
+**      / \          / \
+**     Y   Z        X   Y
+**
+*/
+static closure_avl *closureAvlRotateAfter(closure_avl *pP){
+  closure_avl *pA = pP->pAfter;
+  closure_avl *pY = pA->pBefore;
+  pA->pUp = pP->pUp;
+  pA->pBefore = pP;
+  pP->pUp = pA;
+  pP->pAfter = pY;
+  if( pY ) pY->pUp = pP;
+  closureAvlRecomputeHeight(pP);
+  closureAvlRecomputeHeight(pA);
+  return pA;
+}
+
+/*
+** Return a pointer to the pBefore or pAfter pointer in the parent
+** of p that points to p.  Or if p is the root node, return pp.
+*/
+static closure_avl **closureAvlFromPtr(closure_avl *p, closure_avl **pp){
+  closure_avl *pUp = p->pUp;
+  if( pUp==0 ) return pp;
+  if( pUp->pAfter==p ) return &pUp->pAfter;
+  return &pUp->pBefore;
+}
+
+/*
+** Rebalance all nodes starting with p and working up to the root.
+** Return the new root.
+*/
+static closure_avl *closureAvlBalance(closure_avl *p){
+  closure_avl *pTop = p;
+  closure_avl **pp;
+  while( p ){
+    closureAvlRecomputeHeight(p);
+    if( p->imbalance>=2 ){
+      closure_avl *pB = p->pBefore;
+      if( pB->imbalance<0 ) p->pBefore = closureAvlRotateAfter(pB);
+      pp = closureAvlFromPtr(p,&p);
+      p = *pp = closureAvlRotateBefore(p);
+    }else if( p->imbalance<=(-2) ){
+      closure_avl *pA = p->pAfter;
+      if( pA->imbalance>0 ) p->pAfter = closureAvlRotateBefore(pA);
+      pp = closureAvlFromPtr(p,&p);
+      p = *pp = closureAvlRotateAfter(p);
+    }
+    pTop = p;
+    p = p->pUp;
+  }
+  return pTop;
+}
+
+/* Search the tree rooted at p for an entry with id.  Return a pointer
+** to the entry or return NULL.
+*/
+static closure_avl *closureAvlSearch(closure_avl *p, sqlite3_int64 id){
+  while( p && id!=p->id ){
+    p = (id<p->id) ? p->pBefore : p->pAfter;
+  }
+  return p;
+}
+
+/* Find the first node (the one with the smallest key).
+*/
+static closure_avl *closureAvlFirst(closure_avl *p){
+  if( p ) while( p->pBefore ) p = p->pBefore;
+  return p;
+}
+
+/* Return the node with the next larger key after p.
+*/
+closure_avl *closureAvlNext(closure_avl *p){
+  closure_avl *pPrev = 0;
+  while( p && p->pAfter==pPrev ){
+    pPrev = p;
+    p = p->pUp;
+  }
+  if( p && pPrev==0 ){
+    p = closureAvlFirst(p->pAfter);
+  }
+  return p;
+}
+
+/* Insert a new node pNew.  Return NULL on success.  If the key is not
+** unique, then do not perform the insert but instead leave pNew unchanged
+** and return a pointer to an existing node with the same key.
+*/
+static closure_avl *closureAvlInsert(
+  closure_avl **ppHead,  /* Head of the tree */
+  closure_avl *pNew      /* New node to be inserted */
+){
+  closure_avl *p = *ppHead;
+  if( p==0 ){
+    p = pNew;
+    pNew->pUp = 0;
+  }else{
+    while( p ){
+      if( pNew->id<p->id ){
+        if( p->pBefore ){
+          p = p->pBefore;
+        }else{
+          p->pBefore = pNew;
+          pNew->pUp = p;
+          break;
+        }
+      }else if( pNew->id>p->id ){
+        if( p->pAfter ){
+          p = p->pAfter;
+        }else{
+          p->pAfter = pNew;
+          pNew->pUp = p;
+          break;
+        }
+      }else{
+        return p;
+      }
+    }
+  }
+  pNew->pBefore = 0;
+  pNew->pAfter = 0;
+  pNew->height = 1;
+  pNew->imbalance = 0;
+  *ppHead = closureAvlBalance(p);
+  return 0;
+}
+
+/* Walk the tree can call xDestroy on each node
+*/
+static void closureAvlDestroy(closure_avl *p, void (*xDestroy)(closure_avl*)){
+  if( p ){
+    closureAvlDestroy(p->pBefore, xDestroy);
+    closureAvlDestroy(p->pAfter, xDestroy);
+    xDestroy(p);
+  }
+}
+/*
+** End of the AVL Tree implementation
+******************************************************************************/
+
+/* 
+** A closure virtual-table object 
+*/
+struct closure_vtab {
+  sqlite3_vtab base;         /* Base class - must be first */
+  char *zDb;                 /* Name of database.  (ex: "main") */
+  char *zSelf;               /* Name of this virtual table */
+  char *zTableName;          /* Name of table holding parent/child relation */
+  char *zIdColumn;           /* Name of ID column of zTableName */
+  char *zParentColumn;       /* Name of PARENT column in zTableName */
+  sqlite3 *db;               /* The database connection */
+  int nCursor;               /* Number of pending cursors */
+};
+
+/* A closure cursor object */
+struct closure_cursor {
+  sqlite3_vtab_cursor base;  /* Base class - must be first */
+  closure_vtab *pVtab;       /* The virtual table this cursor belongs to */
+  char *zTableName;          /* Name of table holding parent/child relation */
+  char *zIdColumn;           /* Name of ID column of zTableName */
+  char *zParentColumn;       /* Name of PARENT column in zTableName */
+  closure_avl *pCurrent;     /* Current element of output */
+  closure_avl *pClosure;     /* The complete closure tree */
+};
+
+/* A queue of AVL nodes */
+struct closure_queue {
+  closure_avl *pFirst;       /* Oldest node on the queue */
+  closure_avl *pLast;        /* Youngest node on the queue */
+};
+
+/*
+** Add a node to the end of the queue
+*/
+static void queuePush(closure_queue *pQueue, closure_avl *pNode){
+  pNode->pList = 0;
+  if( pQueue->pLast ){
+    pQueue->pLast->pList = pNode;
+  }else{
+    pQueue->pFirst = pNode;
+  }
+  pQueue->pLast = pNode;
+}
+
+/*
+** Extract the oldest element (the front element) from the queue.
+*/
+static closure_avl *queuePull(closure_queue *pQueue){
+  closure_avl *p = pQueue->pFirst;
+  if( p ){
+    pQueue->pFirst = p->pList;
+    if( pQueue->pFirst==0 ) pQueue->pLast = 0;
+  }
+  return p;
+}
+
+/*
+** This function converts an SQL quoted string into an unquoted string
+** and returns a pointer to a buffer allocated using sqlite3_malloc() 
+** containing the result. The caller should eventually free this buffer
+** using sqlite3_free.
+**
+** Examples:
+**
+**     "abc"   becomes   abc
+**     'xyz'   becomes   xyz
+**     [pqr]   becomes   pqr
+**     `mno`   becomes   mno
+*/
+static char *closureDequote(const char *zIn){
+  sqlite3_int64 nIn;              /* Size of input string, in bytes */
+  char *zOut;                     /* Output (dequoted) string */
+
+  nIn = strlen(zIn);
+  zOut = sqlite3_malloc64(nIn+1);
+  if( zOut ){
+    char q = zIn[0];              /* Quote character (if any ) */
+
+    if( q!='[' && q!= '\'' && q!='"' && q!='`' ){
+      memcpy(zOut, zIn, (size_t)(nIn+1));
+    }else{
+      int iOut = 0;               /* Index of next byte to write to output */
+      int iIn;                    /* Index of next byte to read from input */
+
+      if( q=='[' ) q = ']';
+      for(iIn=1; iIn<nIn; iIn++){
+        if( zIn[iIn]==q ) iIn++;
+        zOut[iOut++] = zIn[iIn];
+      }
+    }
+    assert( (int)strlen(zOut)<=nIn );
+  }
+  return zOut;
+}
+
+/*
+** Deallocate an closure_vtab object
+*/
+static void closureFree(closure_vtab *p){
+  if( p ){
+    sqlite3_free(p->zDb);
+    sqlite3_free(p->zSelf);
+    sqlite3_free(p->zTableName);
+    sqlite3_free(p->zIdColumn);
+    sqlite3_free(p->zParentColumn);
+    memset(p, 0, sizeof(*p));
+    sqlite3_free(p);
+  }
+}
+
+/*
+** xDisconnect/xDestroy method for the closure module.
+*/
+static int closureDisconnect(sqlite3_vtab *pVtab){
+  closure_vtab *p = (closure_vtab*)pVtab;
+  assert( p->nCursor==0 );
+  closureFree(p);
+  return SQLITE_OK;
+}
+
+/*
+** Check to see if the argument is of the form:
+**
+**       KEY = VALUE
+**
+** If it is, return a pointer to the first character of VALUE.
+** If not, return NULL.  Spaces around the = are ignored.
+*/
+static const char *closureValueOfKey(const char *zKey, const char *zStr){
+  int nKey = (int)strlen(zKey);
+  int nStr = (int)strlen(zStr);
+  int i;
+  if( nStr<nKey+1 ) return 0;
+  if( memcmp(zStr, zKey, nKey)!=0 ) return 0;
+  for(i=nKey; isspace((unsigned char)zStr[i]); i++){}
+  if( zStr[i]!='=' ) return 0;
+  i++;
+  while( isspace((unsigned char)zStr[i]) ){ i++; }
+  return zStr+i;
+}
+
+/*
+** xConnect/xCreate method for the closure module. Arguments are:
+**
+**   argv[0]    -> module name  ("transitive_closure")
+**   argv[1]    -> database name
+**   argv[2]    -> table name
+**   argv[3...] -> arguments
+*/
+static int closureConnect(
+  sqlite3 *db,
+  void *pAux,
+  int argc, const char *const*argv,
+  sqlite3_vtab **ppVtab,
+  char **pzErr
+){
+  int rc = SQLITE_OK;              /* Return code */
+  closure_vtab *pNew = 0;          /* New virtual table */
+  const char *zDb = argv[1];
+  const char *zVal;
+  int i;
+
+  (void)pAux;
+  *ppVtab = 0;
+  pNew = sqlite3_malloc( sizeof(*pNew) );
+  if( pNew==0 ) return SQLITE_NOMEM;
+  rc = SQLITE_NOMEM;
+  memset(pNew, 0, sizeof(*pNew));
+  pNew->db = db;
+  pNew->zDb = sqlite3_mprintf("%s", zDb);
+  if( pNew->zDb==0 ) goto closureConnectError;
+  pNew->zSelf = sqlite3_mprintf("%s", argv[2]);
+  if( pNew->zSelf==0 ) goto closureConnectError;
+  for(i=3; i<argc; i++){
+    zVal = closureValueOfKey("tablename", argv[i]);
+    if( zVal ){
+      sqlite3_free(pNew->zTableName);
+      pNew->zTableName = closureDequote(zVal);
+      if( pNew->zTableName==0 ) goto closureConnectError;
+      continue;
+    }
+    zVal = closureValueOfKey("idcolumn", argv[i]);
+    if( zVal ){
+      sqlite3_free(pNew->zIdColumn);
+      pNew->zIdColumn = closureDequote(zVal);
+      if( pNew->zIdColumn==0 ) goto closureConnectError;
+      continue;
+    }
+    zVal = closureValueOfKey("parentcolumn", argv[i]);
+    if( zVal ){
+      sqlite3_free(pNew->zParentColumn);
+      pNew->zParentColumn = closureDequote(zVal);
+      if( pNew->zParentColumn==0 ) goto closureConnectError;
+      continue;
+    }
+    *pzErr = sqlite3_mprintf("unrecognized argument: [%s]\n", argv[i]);
+    closureFree(pNew);
+    *ppVtab = 0;
+    return SQLITE_ERROR;
+  }
+  rc = sqlite3_declare_vtab(db,
+         "CREATE TABLE x(id,depth,root HIDDEN,tablename HIDDEN,"
+                        "idcolumn HIDDEN,parentcolumn HIDDEN)"
+       );
+#define CLOSURE_COL_ID              0
+#define CLOSURE_COL_DEPTH           1
+#define CLOSURE_COL_ROOT            2
+#define CLOSURE_COL_TABLENAME       3
+#define CLOSURE_COL_IDCOLUMN        4
+#define CLOSURE_COL_PARENTCOLUMN    5
+  if( rc!=SQLITE_OK ){
+    closureFree(pNew);
+  }
+  *ppVtab = &pNew->base;
+  return rc;
+
+closureConnectError:
+  closureFree(pNew);
+  return rc;
+}
+
+/*
+** Open a new closure cursor.
+*/
+static int closureOpen(sqlite3_vtab *pVTab, sqlite3_vtab_cursor **ppCursor){
+  closure_vtab *p = (closure_vtab*)pVTab;
+  closure_cursor *pCur;
+  pCur = sqlite3_malloc( sizeof(*pCur) );
+  if( pCur==0 ) return SQLITE_NOMEM;
+  memset(pCur, 0, sizeof(*pCur));
+  pCur->pVtab = p;
+  *ppCursor = &pCur->base;
+  p->nCursor++;
+  return SQLITE_OK;
+}
+
+/*
+** Free up all the memory allocated by a cursor.  Set it rLimit to 0
+** to indicate that it is at EOF.
+*/
+static void closureClearCursor(closure_cursor *pCur){
+  closureAvlDestroy(pCur->pClosure, (void(*)(closure_avl*))sqlite3_free);
+  sqlite3_free(pCur->zTableName);
+  sqlite3_free(pCur->zIdColumn);
+  sqlite3_free(pCur->zParentColumn);
+  pCur->zTableName = 0;
+  pCur->zIdColumn = 0;
+  pCur->zParentColumn = 0;
+  pCur->pCurrent = 0;
+  pCur->pClosure = 0;
+}
+
+/*
+** Close a closure cursor.
+*/
+static int closureClose(sqlite3_vtab_cursor *cur){
+  closure_cursor *pCur = (closure_cursor *)cur;
+  closureClearCursor(pCur);
+  pCur->pVtab->nCursor--;
+  sqlite3_free(pCur);
+  return SQLITE_OK;
+}
+
+/*
+** Advance a cursor to its next row of output
+*/
+static int closureNext(sqlite3_vtab_cursor *cur){
+  closure_cursor *pCur = (closure_cursor*)cur;
+  pCur->pCurrent = closureAvlNext(pCur->pCurrent);
+  return SQLITE_OK;
+}
+
+/*
+** Allocate and insert a node
+*/
+static int closureInsertNode(
+  closure_queue *pQueue,  /* Add new node to this queue */
+  closure_cursor *pCur,   /* The cursor into which to add the node */
+  sqlite3_int64 id,       /* The node ID */
+  int iGeneration         /* The generation number for this node */
+){
+  closure_avl *pNew = sqlite3_malloc( sizeof(*pNew) );
+  if( pNew==0 ) return SQLITE_NOMEM;
+  memset(pNew, 0, sizeof(*pNew));
+  pNew->id = id;
+  pNew->iGeneration = iGeneration;
+  closureAvlInsert(&pCur->pClosure, pNew);
+  queuePush(pQueue, pNew);
+  return SQLITE_OK;
+}
+
+/*
+** Called to "rewind" a cursor back to the beginning so that
+** it starts its output over again.  Always called at least once
+** prior to any closureColumn, closureRowid, or closureEof call.
+**
+** This routine actually computes the closure.
+**
+** See the comment at the beginning of closureBestIndex() for a 
+** description of the meaning of idxNum.  The idxStr parameter is
+** not used.
+*/
+static int closureFilter(
+  sqlite3_vtab_cursor *pVtabCursor, 
+  int idxNum, const char *idxStr,
+  int argc, sqlite3_value **argv
+){
+  closure_cursor *pCur = (closure_cursor *)pVtabCursor;
+  closure_vtab *pVtab = pCur->pVtab;
+  sqlite3_int64 iRoot;
+  int mxGen = 999999999;
+  char *zSql;
+  sqlite3_stmt *pStmt;
+  closure_avl *pAvl;
+  int rc = SQLITE_OK;
+  const char *zTableName = pVtab->zTableName;
+  const char *zIdColumn = pVtab->zIdColumn;
+  const char *zParentColumn = pVtab->zParentColumn;
+  closure_queue sQueue;
+
+  (void)idxStr;  /* Unused parameter */
+  (void)argc;    /* Unused parameter */
+  closureClearCursor(pCur);
+  memset(&sQueue, 0, sizeof(sQueue));
+  if( (idxNum & 1)==0 ){
+    /* No root=$root in the WHERE clause.  Return an empty set */
+    return SQLITE_OK;
+  }
+  iRoot = sqlite3_value_int64(argv[0]);
+  if( (idxNum & 0x000f0)!=0 ){
+    mxGen = sqlite3_value_int(argv[(idxNum>>4)&0x0f]);
+    if( (idxNum & 0x00002)!=0 ) mxGen--;
+  }
+  if( (idxNum & 0x00f00)!=0 ){
+    zTableName = (const char*)sqlite3_value_text(argv[(idxNum>>8)&0x0f]);
+    pCur->zTableName = sqlite3_mprintf("%s", zTableName);
+  }
+  if( (idxNum & 0x0f000)!=0 ){
+    zIdColumn = (const char*)sqlite3_value_text(argv[(idxNum>>12)&0x0f]);
+    pCur->zIdColumn = sqlite3_mprintf("%s", zIdColumn);
+  }
+  if( (idxNum & 0x0f0000)!=0 ){
+    zParentColumn = (const char*)sqlite3_value_text(argv[(idxNum>>16)&0x0f]);
+    pCur->zParentColumn = sqlite3_mprintf("%s", zParentColumn);
+  }
+
+  zSql = sqlite3_mprintf(
+       "SELECT \"%w\".\"%w\" FROM \"%w\" WHERE \"%w\".\"%w\"=?1",
+       zTableName, zIdColumn, zTableName, zTableName, zParentColumn);
+  if( zSql==0 ){
+    return SQLITE_NOMEM;
+  }else{
+    rc = sqlite3_prepare_v2(pVtab->db, zSql, -1, &pStmt, 0);
+    sqlite3_free(zSql);
+    if( rc ){
+      sqlite3_free(pVtab->base.zErrMsg);
+      pVtab->base.zErrMsg = sqlite3_mprintf("%s", sqlite3_errmsg(pVtab->db));
+      return rc;
+    }
+  }
+  if( rc==SQLITE_OK ){
+    rc = closureInsertNode(&sQueue, pCur, iRoot, 0);
+  }
+  while( (pAvl = queuePull(&sQueue))!=0 ){
+    if( pAvl->iGeneration>=mxGen ) continue;
+    sqlite3_bind_int64(pStmt, 1, pAvl->id);
+    while( rc==SQLITE_OK && sqlite3_step(pStmt)==SQLITE_ROW ){
+      if( sqlite3_column_type(pStmt,0)==SQLITE_INTEGER ){
+        sqlite3_int64 iNew = sqlite3_column_int64(pStmt, 0);
+        if( closureAvlSearch(pCur->pClosure, iNew)==0 ){
+          rc = closureInsertNode(&sQueue, pCur, iNew, pAvl->iGeneration+1);
+        }
+      }
+    }
+    sqlite3_reset(pStmt);
+  }
+  sqlite3_finalize(pStmt);
+  if( rc==SQLITE_OK ){
+    pCur->pCurrent = closureAvlFirst(pCur->pClosure);
+  }
+
+  return rc;
+}
+
+/*
+** Only the word and distance columns have values.  All other columns
+** return NULL
+*/
+static int closureColumn(sqlite3_vtab_cursor *cur, sqlite3_context *ctx, int i){
+  closure_cursor *pCur = (closure_cursor*)cur;
+  switch( i ){
+    case CLOSURE_COL_ID: {
+      sqlite3_result_int64(ctx, pCur->pCurrent->id);
+      break;
+    }
+    case CLOSURE_COL_DEPTH: {
+      sqlite3_result_int(ctx, pCur->pCurrent->iGeneration);
+      break;
+    }
+    case CLOSURE_COL_ROOT: {
+      sqlite3_result_null(ctx);
+      break;
+    }
+    case CLOSURE_COL_TABLENAME: {
+      sqlite3_result_text(ctx,
+         pCur->zTableName ? pCur->zTableName : pCur->pVtab->zTableName,
+         -1, SQLITE_TRANSIENT);
+      break;
+    }
+    case CLOSURE_COL_IDCOLUMN: {
+      sqlite3_result_text(ctx,
+         pCur->zIdColumn ? pCur->zIdColumn : pCur->pVtab->zIdColumn,
+         -1, SQLITE_TRANSIENT);
+      break;
+    }
+    case CLOSURE_COL_PARENTCOLUMN: {
+      sqlite3_result_text(ctx,
+         pCur->zParentColumn ? pCur->zParentColumn : pCur->pVtab->zParentColumn,
+         -1, SQLITE_TRANSIENT);
+      break;
+    }
+  }
+  return SQLITE_OK;
+}
+
+/*
+** The rowid.  For the closure table, this is the same as the "id" column.
+*/
+static int closureRowid(sqlite3_vtab_cursor *cur, sqlite_int64 *pRowid){
+  closure_cursor *pCur = (closure_cursor*)cur;
+  *pRowid = pCur->pCurrent->id;
+  return SQLITE_OK;
+}
+
+/*
+** EOF indicator
+*/
+static int closureEof(sqlite3_vtab_cursor *cur){
+  closure_cursor *pCur = (closure_cursor*)cur;
+  return pCur->pCurrent==0;
+}
+
+/*
+** Search for terms of these forms:
+**
+**   (A)    root = $root
+**   (B1)   depth < $depth
+**   (B2)   depth <= $depth
+**   (B3)   depth = $depth
+**   (C)    tablename = $tablename
+**   (D)    idcolumn = $idcolumn
+**   (E)    parentcolumn = $parentcolumn
+**
+** 
+**
+**   idxNum       meaning
+**   ----------   ------------------------------------------------------
+**   0x00000001   Term of the form (A) found
+**   0x00000002   The term of bit-2 is like (B1)
+**   0x000000f0   Index in filter.argv[] of $depth.  0 if not used.
+**   0x00000f00   Index in filter.argv[] of $tablename.  0 if not used.
+**   0x0000f000   Index in filter.argv[] of $idcolumn.  0 if not used
+**   0x000f0000   Index in filter.argv[] of $parentcolumn.  0 if not used.
+**
+** There must be a term of type (A).  If there is not, then the index type
+** is 0 and the query will return an empty set.
+*/
+static int closureBestIndex(
+  sqlite3_vtab *pTab,             /* The virtual table */
+  sqlite3_index_info *pIdxInfo    /* Information about the query */
+){
+  int iPlan = 0;
+  int i;
+  int idx = 1;
+  const struct sqlite3_index_constraint *pConstraint;
+  closure_vtab *pVtab = (closure_vtab*)pTab;
+  double rCost = 10000000.0;
+
+  pConstraint = pIdxInfo->aConstraint;
+  for(i=0; i<pIdxInfo->nConstraint; i++, pConstraint++){
+    if( pConstraint->usable==0 ) continue;
+    if( (iPlan & 1)==0 
+     && pConstraint->iColumn==CLOSURE_COL_ROOT
+     && pConstraint->op==SQLITE_INDEX_CONSTRAINT_EQ
+    ){
+      iPlan |= 1;
+      pIdxInfo->aConstraintUsage[i].argvIndex = 1;
+      pIdxInfo->aConstraintUsage[i].omit = 1;
+      rCost /= 100.0;
+    }
+    if( (iPlan & 0x0000f0)==0
+     && pConstraint->iColumn==CLOSURE_COL_DEPTH
+     && (pConstraint->op==SQLITE_INDEX_CONSTRAINT_LT
+           || pConstraint->op==SQLITE_INDEX_CONSTRAINT_LE
+           || pConstraint->op==SQLITE_INDEX_CONSTRAINT_EQ)
+    ){
+      iPlan |= idx<<4;
+      pIdxInfo->aConstraintUsage[i].argvIndex = ++idx;
+      if( pConstraint->op==SQLITE_INDEX_CONSTRAINT_LT ) iPlan |= 0x000002;
+      rCost /= 5.0;
+    }
+    if( (iPlan & 0x000f00)==0
+     && pConstraint->iColumn==CLOSURE_COL_TABLENAME
+     && pConstraint->op==SQLITE_INDEX_CONSTRAINT_EQ
+    ){
+      iPlan |= idx<<8;
+      pIdxInfo->aConstraintUsage[i].argvIndex = ++idx;
+      pIdxInfo->aConstraintUsage[i].omit = 1;
+      rCost /= 5.0;
+    }
+    if( (iPlan & 0x00f000)==0
+     && pConstraint->iColumn==CLOSURE_COL_IDCOLUMN
+     && pConstraint->op==SQLITE_INDEX_CONSTRAINT_EQ
+    ){
+      iPlan |= idx<<12;
+      pIdxInfo->aConstraintUsage[i].argvIndex = ++idx;
+      pIdxInfo->aConstraintUsage[i].omit = 1;
+    }
+    if( (iPlan & 0x0f0000)==0
+     && pConstraint->iColumn==CLOSURE_COL_PARENTCOLUMN
+     && pConstraint->op==SQLITE_INDEX_CONSTRAINT_EQ
+    ){
+      iPlan |= idx<<16;
+      pIdxInfo->aConstraintUsage[i].argvIndex = ++idx;
+      pIdxInfo->aConstraintUsage[i].omit = 1;
+    }
+  }
+  if( (pVtab->zTableName==0    && (iPlan & 0x000f00)==0)
+   || (pVtab->zIdColumn==0     && (iPlan & 0x00f000)==0)
+   || (pVtab->zParentColumn==0 && (iPlan & 0x0f0000)==0)
+  ){
+    /* All of tablename, idcolumn, and parentcolumn must be specified
+    ** in either the CREATE VIRTUAL TABLE or in the WHERE clause constraints
+    ** or else the result is an empty set. */
+    iPlan = 0;
+  }
+  if( (iPlan&1)==0 ){
+    /* If there is no usable "root=?" term, then set the index-type to 0.
+    ** Also clear any argvIndex variables already set. This is necessary
+    ** to prevent the core from throwing an "xBestIndex malfunction error"
+    ** error (because the argvIndex values are not contiguously assigned
+    ** starting from 1).  */
+    rCost *= 1e30;
+    for(i=0; i<pIdxInfo->nConstraint; i++, pConstraint++){
+      pIdxInfo->aConstraintUsage[i].argvIndex = 0;
+    }
+    iPlan = 0;
+  }
+  pIdxInfo->idxNum = iPlan;
+  if( pIdxInfo->nOrderBy==1
+   && pIdxInfo->aOrderBy[0].iColumn==CLOSURE_COL_ID
+   && pIdxInfo->aOrderBy[0].desc==0
+  ){
+    pIdxInfo->orderByConsumed = 1;
+  }
+  pIdxInfo->estimatedCost = rCost;
+   
+  return SQLITE_OK;
+}
+
+/*
+** A virtual table module that implements the "transitive_closure".
+*/
+static sqlite3_module closureModule = {
+  0,                      /* iVersion */
+  closureConnect,         /* xCreate */
+  closureConnect,         /* xConnect */
+  closureBestIndex,       /* xBestIndex */
+  closureDisconnect,      /* xDisconnect */
+  closureDisconnect,      /* xDestroy */
+  closureOpen,            /* xOpen - open a cursor */
+  closureClose,           /* xClose - close a cursor */
+  closureFilter,          /* xFilter - configure scan constraints */
+  closureNext,            /* xNext - advance a cursor */
+  closureEof,             /* xEof - check for end of scan */
+  closureColumn,          /* xColumn - read data */
+  closureRowid,           /* xRowid - read data */
+  0,                      /* xUpdate */
+  0,                      /* xBegin */
+  0,                      /* xSync */
+  0,                      /* xCommit */
+  0,                      /* xRollback */
+  0,                      /* xFindMethod */
+  0,                      /* xRename */
+  0,                      /* xSavepoint */
+  0,                      /* xRelease */
+  0,                      /* xRollbackTo */
+  0,                      /* xShadowName */
+  0                       /* xIntegrity */
+};
+
+#endif /* SQLITE_OMIT_VIRTUALTABLE */
+
+/*
+** Register the closure virtual table
+*/
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_closure_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  int rc = SQLITE_OK;
+  SQLITE_EXTENSION_INIT2(pApi);
+  (void)pzErrMsg;
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+  rc = sqlite3_create_module(db, "transitive_closure", &closureModule, 0);
+#endif /* SQLITE_OMIT_VIRTUALTABLE */
+  return rc;
+}
diff --git a/ext/misc/completion.c b/ext/misc/completion.c
new file mode 100644
index 0000000000000000000000000000000000000000..54abc0ae154722629668a04f0b4fcba2b963ea2a
--- /dev/null
+++ b/ext/misc/completion.c
@@ -0,0 +1,502 @@
+/*
+** 2017-07-10
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** This file implements an eponymous virtual table that returns suggested
+** completions for a partial SQL input.
+**
+** Suggested usage:
+**
+**     SELECT DISTINCT candidate COLLATE nocase
+**       FROM completion($prefix,$wholeline)
+**      ORDER BY 1;
+**
+** The two query parameters are optional.  $prefix is the text of the
+** current word being typed and that is to be completed.  $wholeline is
+** the complete input line, used for context.
+**
+** The raw completion() table might return the same candidate multiple
+** times, for example if the same column name is used to two or more
+** tables.  And the candidates are returned in an arbitrary order.  Hence,
+** the DISTINCT and ORDER BY are recommended.
+**
+** This virtual table operates at the speed of human typing, and so there
+** is no attempt to make it fast.  Even a slow implementation will be much
+** faster than any human can type.
+**
+*/
+#include "sqlite3ext.h"
+SQLITE_EXTENSION_INIT1
+#include <assert.h>
+#include <string.h>
+#include <ctype.h>
+
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+
+/* completion_vtab is a subclass of sqlite3_vtab which will
+** serve as the underlying representation of a completion virtual table
+*/
+typedef struct completion_vtab completion_vtab;
+struct completion_vtab {
+  sqlite3_vtab base;  /* Base class - must be first */
+  sqlite3 *db;        /* Database connection for this completion vtab */
+};
+
+/* completion_cursor is a subclass of sqlite3_vtab_cursor which will
+** serve as the underlying representation of a cursor that scans
+** over rows of the result
+*/
+typedef struct completion_cursor completion_cursor;
+struct completion_cursor {
+  sqlite3_vtab_cursor base;  /* Base class - must be first */
+  sqlite3 *db;               /* Database connection for this cursor */
+  int nPrefix, nLine;        /* Number of bytes in zPrefix and zLine */
+  char *zPrefix;             /* The prefix for the word we want to complete */
+  char *zLine;               /* The whole that we want to complete */
+  const char *zCurrentRow;   /* Current output row */
+  int szRow;                 /* Length of the zCurrentRow string */
+  sqlite3_stmt *pStmt;       /* Current statement */
+  sqlite3_int64 iRowid;      /* The rowid */
+  int ePhase;                /* Current phase */
+  int j;                     /* inter-phase counter */
+};
+
+/* Values for ePhase:
+*/
+#define COMPLETION_FIRST_PHASE   1
+#define COMPLETION_KEYWORDS      1
+#define COMPLETION_PRAGMAS       2
+#define COMPLETION_FUNCTIONS     3
+#define COMPLETION_COLLATIONS    4
+#define COMPLETION_INDEXES       5
+#define COMPLETION_TRIGGERS      6
+#define COMPLETION_DATABASES     7
+#define COMPLETION_TABLES        8    /* Also VIEWs and TRIGGERs */
+#define COMPLETION_COLUMNS       9
+#define COMPLETION_MODULES       10
+#define COMPLETION_EOF           11
+
+/*
+** The completionConnect() method is invoked to create a new
+** completion_vtab that describes the completion virtual table.
+**
+** Think of this routine as the constructor for completion_vtab objects.
+**
+** All this routine needs to do is:
+**
+**    (1) Allocate the completion_vtab object and initialize all fields.
+**
+**    (2) Tell SQLite (via the sqlite3_declare_vtab() interface) what the
+**        result set of queries against completion will look like.
+*/
+static int completionConnect(
+  sqlite3 *db,
+  void *pAux,
+  int argc, const char *const*argv,
+  sqlite3_vtab **ppVtab,
+  char **pzErr
+){
+  completion_vtab *pNew;
+  int rc;
+
+  (void)(pAux);    /* Unused parameter */
+  (void)(argc);    /* Unused parameter */
+  (void)(argv);    /* Unused parameter */
+  (void)(pzErr);   /* Unused parameter */
+
+/* Column numbers */
+#define COMPLETION_COLUMN_CANDIDATE 0  /* Suggested completion of the input */
+#define COMPLETION_COLUMN_PREFIX    1  /* Prefix of the word to be completed */
+#define COMPLETION_COLUMN_WHOLELINE 2  /* Entire line seen so far */
+#define COMPLETION_COLUMN_PHASE     3  /* ePhase - used for debugging only */
+
+  sqlite3_vtab_config(db, SQLITE_VTAB_INNOCUOUS);
+  rc = sqlite3_declare_vtab(db,
+      "CREATE TABLE x("
+      "  candidate TEXT,"
+      "  prefix TEXT HIDDEN,"
+      "  wholeline TEXT HIDDEN,"
+      "  phase INT HIDDEN"        /* Used for debugging only */
+      ")");
+  if( rc==SQLITE_OK ){
+    pNew = sqlite3_malloc( sizeof(*pNew) );
+    *ppVtab = (sqlite3_vtab*)pNew;
+    if( pNew==0 ) return SQLITE_NOMEM;
+    memset(pNew, 0, sizeof(*pNew));
+    pNew->db = db;
+  }
+  return rc;
+}
+
+/*
+** This method is the destructor for completion_cursor objects.
+*/
+static int completionDisconnect(sqlite3_vtab *pVtab){
+  sqlite3_free(pVtab);
+  return SQLITE_OK;
+}
+
+/*
+** Constructor for a new completion_cursor object.
+*/
+static int completionOpen(sqlite3_vtab *p, sqlite3_vtab_cursor **ppCursor){
+  completion_cursor *pCur;
+  pCur = sqlite3_malloc( sizeof(*pCur) );
+  if( pCur==0 ) return SQLITE_NOMEM;
+  memset(pCur, 0, sizeof(*pCur));
+  pCur->db = ((completion_vtab*)p)->db;
+  *ppCursor = &pCur->base;
+  return SQLITE_OK;
+}
+
+/*
+** Reset the completion_cursor.
+*/
+static void completionCursorReset(completion_cursor *pCur){
+  sqlite3_free(pCur->zPrefix);   pCur->zPrefix = 0;  pCur->nPrefix = 0;
+  sqlite3_free(pCur->zLine);     pCur->zLine = 0;    pCur->nLine = 0;
+  sqlite3_finalize(pCur->pStmt); pCur->pStmt = 0;
+  pCur->j = 0;
+}
+
+/*
+** Destructor for a completion_cursor.
+*/
+static int completionClose(sqlite3_vtab_cursor *cur){
+  completionCursorReset((completion_cursor*)cur);
+  sqlite3_free(cur);
+  return SQLITE_OK;
+}
+
+/*
+** Advance a completion_cursor to its next row of output.
+**
+** The ->ePhase, ->j, and ->pStmt fields of the completion_cursor object
+** record the current state of the scan.  This routine sets ->zCurrentRow
+** to the current row of output and then returns.  If no more rows remain,
+** then ->ePhase is set to COMPLETION_EOF which will signal the virtual
+** table that has reached the end of its scan.
+**
+** The current implementation just lists potential identifiers and
+** keywords and filters them by zPrefix.  Future enhancements should
+** take zLine into account to try to restrict the set of identifiers and
+** keywords based on what would be legal at the current point of input.
+*/
+static int completionNext(sqlite3_vtab_cursor *cur){
+  completion_cursor *pCur = (completion_cursor*)cur;
+  int eNextPhase = 0;  /* Next phase to try if current phase reaches end */
+  int iCol = -1;       /* If >=0, step pCur->pStmt and use the i-th column */
+  pCur->iRowid++;
+  while( pCur->ePhase!=COMPLETION_EOF ){
+    switch( pCur->ePhase ){
+      case COMPLETION_KEYWORDS: {
+        if( pCur->j >= sqlite3_keyword_count() ){
+          pCur->zCurrentRow = 0;
+          pCur->ePhase = COMPLETION_DATABASES;
+        }else{
+          sqlite3_keyword_name(pCur->j++, &pCur->zCurrentRow, &pCur->szRow);
+        }
+        iCol = -1;
+        break;
+      }
+      case COMPLETION_DATABASES: {
+        if( pCur->pStmt==0 ){
+          sqlite3_prepare_v2(pCur->db, "PRAGMA database_list", -1,
+                             &pCur->pStmt, 0);
+        }
+        iCol = 1;
+        eNextPhase = COMPLETION_TABLES;
+        break;
+      }
+      case COMPLETION_TABLES: {
+        if( pCur->pStmt==0 ){
+          sqlite3_stmt *pS2;
+          char *zSql = 0;
+          const char *zSep = "";
+          sqlite3_prepare_v2(pCur->db, "PRAGMA database_list", -1, &pS2, 0);
+          while( sqlite3_step(pS2)==SQLITE_ROW ){
+            const char *zDb = (const char*)sqlite3_column_text(pS2, 1);
+            zSql = sqlite3_mprintf(
+               "%z%s"
+               "SELECT name FROM \"%w\".sqlite_schema",
+               zSql, zSep, zDb
+            );
+            if( zSql==0 ) return SQLITE_NOMEM;
+            zSep = " UNION ";
+          }
+          sqlite3_finalize(pS2);
+          sqlite3_prepare_v2(pCur->db, zSql, -1, &pCur->pStmt, 0);
+          sqlite3_free(zSql);
+        }
+        iCol = 0;
+        eNextPhase = COMPLETION_COLUMNS;
+        break;
+      }
+      case COMPLETION_COLUMNS: {
+        if( pCur->pStmt==0 ){
+          sqlite3_stmt *pS2;
+          char *zSql = 0;
+          const char *zSep = "";
+          sqlite3_prepare_v2(pCur->db, "PRAGMA database_list", -1, &pS2, 0);
+          while( sqlite3_step(pS2)==SQLITE_ROW ){
+            const char *zDb = (const char*)sqlite3_column_text(pS2, 1);
+            zSql = sqlite3_mprintf(
+               "%z%s"
+               "SELECT pti.name FROM \"%w\".sqlite_schema AS sm"
+                       " JOIN pragma_table_xinfo(sm.name,%Q) AS pti"
+               " WHERE sm.type='table'",
+               zSql, zSep, zDb, zDb
+            );
+            if( zSql==0 ) return SQLITE_NOMEM;
+            zSep = " UNION ";
+          }
+          sqlite3_finalize(pS2);
+          sqlite3_prepare_v2(pCur->db, zSql, -1, &pCur->pStmt, 0);
+          sqlite3_free(zSql);
+        }
+        iCol = 0;
+        eNextPhase = COMPLETION_EOF;
+        break;
+      }
+    }
+    if( iCol<0 ){
+      /* This case is when the phase presets zCurrentRow */
+      if( pCur->zCurrentRow==0 ) continue;
+    }else{
+      if( sqlite3_step(pCur->pStmt)==SQLITE_ROW ){
+        /* Extract the next row of content */
+        pCur->zCurrentRow = (const char*)sqlite3_column_text(pCur->pStmt, iCol);
+        pCur->szRow = sqlite3_column_bytes(pCur->pStmt, iCol);
+      }else{
+        /* When all rows are finished, advance to the next phase */
+        sqlite3_finalize(pCur->pStmt);
+        pCur->pStmt = 0;
+        pCur->ePhase = eNextPhase;
+        continue;
+      }
+    }
+    if( pCur->nPrefix==0 ) break;
+    if( pCur->nPrefix<=pCur->szRow
+     && sqlite3_strnicmp(pCur->zPrefix, pCur->zCurrentRow, pCur->nPrefix)==0
+    ){
+      break;
+    }
+  }
+
+  return SQLITE_OK;
+}
+
+/*
+** Return values of columns for the row at which the completion_cursor
+** is currently pointing.
+*/
+static int completionColumn(
+  sqlite3_vtab_cursor *cur,   /* The cursor */
+  sqlite3_context *ctx,       /* First argument to sqlite3_result_...() */
+  int i                       /* Which column to return */
+){
+  completion_cursor *pCur = (completion_cursor*)cur;
+  switch( i ){
+    case COMPLETION_COLUMN_CANDIDATE: {
+      sqlite3_result_text(ctx, pCur->zCurrentRow, pCur->szRow,SQLITE_TRANSIENT);
+      break;
+    }
+    case COMPLETION_COLUMN_PREFIX: {
+      sqlite3_result_text(ctx, pCur->zPrefix, -1, SQLITE_TRANSIENT);
+      break;
+    }
+    case COMPLETION_COLUMN_WHOLELINE: {
+      sqlite3_result_text(ctx, pCur->zLine, -1, SQLITE_TRANSIENT);
+      break;
+    }
+    case COMPLETION_COLUMN_PHASE: {
+      sqlite3_result_int(ctx, pCur->ePhase);
+      break;
+    }
+  }
+  return SQLITE_OK;
+}
+
+/*
+** Return the rowid for the current row.  In this implementation, the
+** rowid is the same as the output value.
+*/
+static int completionRowid(sqlite3_vtab_cursor *cur, sqlite_int64 *pRowid){
+  completion_cursor *pCur = (completion_cursor*)cur;
+  *pRowid = pCur->iRowid;
+  return SQLITE_OK;
+}
+
+/*
+** Return TRUE if the cursor has been moved off of the last
+** row of output.
+*/
+static int completionEof(sqlite3_vtab_cursor *cur){
+  completion_cursor *pCur = (completion_cursor*)cur;
+  return pCur->ePhase >= COMPLETION_EOF;
+}
+
+/*
+** This method is called to "rewind" the completion_cursor object back
+** to the first row of output.  This method is always called at least
+** once prior to any call to completionColumn() or completionRowid() or 
+** completionEof().
+*/
+static int completionFilter(
+  sqlite3_vtab_cursor *pVtabCursor, 
+  int idxNum, const char *idxStr,
+  int argc, sqlite3_value **argv
+){
+  completion_cursor *pCur = (completion_cursor *)pVtabCursor;
+  int iArg = 0;
+  (void)(idxStr);   /* Unused parameter */
+  (void)(argc);     /* Unused parameter */
+  completionCursorReset(pCur);
+  if( idxNum & 1 ){
+    pCur->nPrefix = sqlite3_value_bytes(argv[iArg]);
+    if( pCur->nPrefix>0 ){
+      pCur->zPrefix = sqlite3_mprintf("%s", sqlite3_value_text(argv[iArg]));
+      if( pCur->zPrefix==0 ) return SQLITE_NOMEM;
+    }
+    iArg = 1;
+  }
+  if( idxNum & 2 ){
+    pCur->nLine = sqlite3_value_bytes(argv[iArg]);
+    if( pCur->nLine>0 ){
+      pCur->zLine = sqlite3_mprintf("%s", sqlite3_value_text(argv[iArg]));
+      if( pCur->zLine==0 ) return SQLITE_NOMEM;
+    }
+  }
+  if( pCur->zLine!=0 && pCur->zPrefix==0 ){
+    int i = pCur->nLine;
+    while( i>0 && (isalnum(pCur->zLine[i-1]) || pCur->zLine[i-1]=='_') ){
+      i--;
+    }
+    pCur->nPrefix = pCur->nLine - i;
+    if( pCur->nPrefix>0 ){
+      pCur->zPrefix = sqlite3_mprintf("%.*s", pCur->nPrefix, pCur->zLine + i);
+      if( pCur->zPrefix==0 ) return SQLITE_NOMEM;
+    }
+  }
+  pCur->iRowid = 0;
+  pCur->ePhase = COMPLETION_FIRST_PHASE;
+  return completionNext(pVtabCursor);
+}
+
+/*
+** SQLite will invoke this method one or more times while planning a query
+** that uses the completion virtual table.  This routine needs to create
+** a query plan for each invocation and compute an estimated cost for that
+** plan.
+**
+** There are two hidden parameters that act as arguments to the table-valued
+** function:  "prefix" and "wholeline".  Bit 0 of idxNum is set if "prefix"
+** is available and bit 1 is set if "wholeline" is available.
+*/
+static int completionBestIndex(
+  sqlite3_vtab *tab,
+  sqlite3_index_info *pIdxInfo
+){
+  int i;                 /* Loop over constraints */
+  int idxNum = 0;        /* The query plan bitmask */
+  int prefixIdx = -1;    /* Index of the start= constraint, or -1 if none */
+  int wholelineIdx = -1; /* Index of the stop= constraint, or -1 if none */
+  int nArg = 0;          /* Number of arguments that completeFilter() expects */
+  const struct sqlite3_index_constraint *pConstraint;
+
+  (void)(tab);    /* Unused parameter */
+  pConstraint = pIdxInfo->aConstraint;
+  for(i=0; i<pIdxInfo->nConstraint; i++, pConstraint++){
+    if( pConstraint->usable==0 ) continue;
+    if( pConstraint->op!=SQLITE_INDEX_CONSTRAINT_EQ ) continue;
+    switch( pConstraint->iColumn ){
+      case COMPLETION_COLUMN_PREFIX:
+        prefixIdx = i;
+        idxNum |= 1;
+        break;
+      case COMPLETION_COLUMN_WHOLELINE:
+        wholelineIdx = i;
+        idxNum |= 2;
+        break;
+    }
+  }
+  if( prefixIdx>=0 ){
+    pIdxInfo->aConstraintUsage[prefixIdx].argvIndex = ++nArg;
+    pIdxInfo->aConstraintUsage[prefixIdx].omit = 1;
+  }
+  if( wholelineIdx>=0 ){
+    pIdxInfo->aConstraintUsage[wholelineIdx].argvIndex = ++nArg;
+    pIdxInfo->aConstraintUsage[wholelineIdx].omit = 1;
+  }
+  pIdxInfo->idxNum = idxNum;
+  pIdxInfo->estimatedCost = (double)5000 - 1000*nArg;
+  pIdxInfo->estimatedRows = 500 - 100*nArg;
+  return SQLITE_OK;
+}
+
+/*
+** This following structure defines all the methods for the 
+** completion virtual table.
+*/
+static sqlite3_module completionModule = {
+  0,                         /* iVersion */
+  0,                         /* xCreate */
+  completionConnect,         /* xConnect */
+  completionBestIndex,       /* xBestIndex */
+  completionDisconnect,      /* xDisconnect */
+  0,                         /* xDestroy */
+  completionOpen,            /* xOpen - open a cursor */
+  completionClose,           /* xClose - close a cursor */
+  completionFilter,          /* xFilter - configure scan constraints */
+  completionNext,            /* xNext - advance a cursor */
+  completionEof,             /* xEof - check for end of scan */
+  completionColumn,          /* xColumn - read data */
+  completionRowid,           /* xRowid - read data */
+  0,                         /* xUpdate */
+  0,                         /* xBegin */
+  0,                         /* xSync */
+  0,                         /* xCommit */
+  0,                         /* xRollback */
+  0,                         /* xFindMethod */
+  0,                         /* xRename */
+  0,                         /* xSavepoint */
+  0,                         /* xRelease */
+  0,                         /* xRollbackTo */
+  0,                         /* xShadowName */
+  0                          /* xIntegrity */
+};
+
+#endif /* SQLITE_OMIT_VIRTUALTABLE */
+
+int sqlite3CompletionVtabInit(sqlite3 *db){
+  int rc = SQLITE_OK;
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+  rc = sqlite3_create_module(db, "completion", &completionModule, 0);
+#endif
+  return rc;
+}
+
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_completion_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  int rc = SQLITE_OK;
+  SQLITE_EXTENSION_INIT2(pApi);
+  (void)(pzErrMsg);  /* Unused parameter */
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+  rc = sqlite3CompletionVtabInit(db);
+#endif
+  return rc;
+}
diff --git a/ext/misc/compress.c b/ext/misc/compress.c
new file mode 100644
index 0000000000000000000000000000000000000000..6b034eb45fde4ae073efd5a1786e0fab253510ff
--- /dev/null
+++ b/ext/misc/compress.c
@@ -0,0 +1,131 @@
+/*
+** 2014-06-13
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This SQLite extension implements SQL compression functions
+** compress() and uncompress() using ZLIB.
+*/
+#include "sqlite3ext.h"
+SQLITE_EXTENSION_INIT1
+#include <zlib.h>
+
+/*
+** Implementation of the "compress(X)" SQL function.  The input X is
+** compressed using zLib and the output is returned.
+**
+** The output is a BLOB that begins with a variable-length integer that
+** is the input size in bytes (the size of X before compression).  The
+** variable-length integer is implemented as 1 to 5 bytes.  There are
+** seven bits per integer stored in the lower seven bits of each byte.
+** More significant bits occur first.  The most significant bit (0x80)
+** is a flag to indicate the end of the integer.
+**
+** This function, SQLAR, and ZIP all use the same "deflate" compression
+** algorithm, but each is subtly different:
+**
+**   *  ZIP uses raw deflate.
+**
+**   *  SQLAR uses the "zlib format" which is raw deflate with a two-byte
+**      algorithm-identification header and a four-byte checksum at the end.
+**
+**   *  This utility uses the "zlib format" like SQLAR, but adds the variable-
+**      length integer uncompressed size value at the beginning.
+**
+** This function might be extended in the future to support compression
+** formats other than deflate, by providing a different algorithm-id
+** mark following the variable-length integer size parameter.
+*/
+static void compressFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  const unsigned char *pIn;
+  unsigned char *pOut;
+  unsigned int nIn;
+  unsigned long int nOut;
+  unsigned char x[8];
+  int rc;
+  int i, j;
+
+  pIn = sqlite3_value_blob(argv[0]);
+  nIn = sqlite3_value_bytes(argv[0]);
+  nOut = 13 + nIn + (nIn+999)/1000;
+  pOut = sqlite3_malloc( nOut+5 );
+  for(i=4; i>=0; i--){
+    x[i] = (nIn >> (7*(4-i)))&0x7f;
+  }
+  for(i=0; i<4 && x[i]==0; i++){}
+  for(j=0; i<=4; i++, j++) pOut[j] = x[i];
+  pOut[j-1] |= 0x80;
+  rc = compress(&pOut[j], &nOut, pIn, nIn);
+  if( rc==Z_OK ){
+    sqlite3_result_blob(context, pOut, nOut+j, sqlite3_free);
+  }else{
+    sqlite3_free(pOut);
+  }
+}
+
+/*
+** Implementation of the "uncompress(X)" SQL function.  The argument X
+** is a blob which was obtained from compress(Y).  The output will be
+** the value Y.
+*/
+static void uncompressFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  const unsigned char *pIn;
+  unsigned char *pOut;
+  unsigned int nIn;
+  unsigned long int nOut;
+  int rc;
+  unsigned int i;
+
+  pIn = sqlite3_value_blob(argv[0]);
+  nIn = sqlite3_value_bytes(argv[0]);
+  nOut = 0;
+  for(i=0; i<nIn && i<5; i++){
+    nOut = (nOut<<7) | (pIn[i]&0x7f);
+    if( (pIn[i]&0x80)!=0 ){ i++; break; }
+  }
+  pOut = sqlite3_malloc( nOut+1 );
+  rc = uncompress(pOut, &nOut, &pIn[i], nIn-i);
+  if( rc==Z_OK ){
+    sqlite3_result_blob(context, pOut, nOut, sqlite3_free);
+  }else{
+    sqlite3_free(pOut);
+  }
+}
+
+
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_compress_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  int rc = SQLITE_OK;
+  SQLITE_EXTENSION_INIT2(pApi);
+  (void)pzErrMsg;  /* Unused parameter */
+  rc = sqlite3_create_function(db, "compress", 1, 
+                    SQLITE_UTF8 | SQLITE_INNOCUOUS,
+                    0, compressFunc, 0, 0);
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_function(db, "uncompress", 1,
+                    SQLITE_UTF8 | SQLITE_INNOCUOUS | SQLITE_DETERMINISTIC,
+                    0, uncompressFunc, 0, 0);
+  }
+  return rc;
+}
diff --git a/ext/misc/csv.c b/ext/misc/csv.c
new file mode 100644
index 0000000000000000000000000000000000000000..b38500f4b92939d77ac74dada25ad7575dcebaf4
--- /dev/null
+++ b/ext/misc/csv.c
@@ -0,0 +1,974 @@
+/*
+** 2016-05-28
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This file contains the implementation of an SQLite virtual table for
+** reading CSV files.
+**
+** Usage:
+**
+**    .load ./csv
+**    CREATE VIRTUAL TABLE temp.csv USING csv(filename=FILENAME);
+**    SELECT * FROM csv;
+**
+** The columns are named "c1", "c2", "c3", ... by default.  Or the
+** application can define its own CREATE TABLE statement using the
+** schema= parameter, like this:
+**
+**    CREATE VIRTUAL TABLE temp.csv2 USING csv(
+**       filename = "../http.log",
+**       schema = "CREATE TABLE x(date,ipaddr,url,referrer,userAgent)"
+**    );
+**
+** Instead of specifying a file, the text of the CSV can be loaded using
+** the data= parameter.
+**
+** If the columns=N parameter is supplied, then the CSV file is assumed to have
+** N columns.  If both the columns= and schema= parameters are omitted, then
+** the number and names of the columns is determined by the first line of
+** the CSV input.
+**
+** Some extra debugging features (used for testing virtual tables) are available
+** if this module is compiled with -DSQLITE_TEST.
+*/
+#include <sqlite3ext.h>
+SQLITE_EXTENSION_INIT1
+#include <string.h>
+#include <stdlib.h>
+#include <assert.h>
+#include <stdarg.h>
+#include <ctype.h>
+#include <stdio.h>
+
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+
+/*
+** A macro to hint to the compiler that a function should not be
+** inlined.
+*/
+#if defined(__GNUC__)
+#  define CSV_NOINLINE  __attribute__((noinline))
+#elif defined(_MSC_VER) && _MSC_VER>=1310
+#  define CSV_NOINLINE  __declspec(noinline)
+#else
+#  define CSV_NOINLINE
+#endif
+
+
+/* Max size of the error message in a CsvReader */
+#define CSV_MXERR 200
+
+/* Size of the CsvReader input buffer */
+#define CSV_INBUFSZ 1024
+
+/* A context object used when read a CSV file. */
+typedef struct CsvReader CsvReader;
+struct CsvReader {
+  FILE *in;              /* Read the CSV text from this input stream */
+  char *z;               /* Accumulated text for a field */
+  int n;                 /* Number of bytes in z */
+  int nAlloc;            /* Space allocated for z[] */
+  int nLine;             /* Current line number */
+  int bNotFirst;         /* True if prior text has been seen */
+  int cTerm;             /* Character that terminated the most recent field */
+  size_t iIn;            /* Next unread character in the input buffer */
+  size_t nIn;            /* Number of characters in the input buffer */
+  char *zIn;             /* The input buffer */
+  char zErr[CSV_MXERR];  /* Error message */
+};
+
+/* Initialize a CsvReader object */
+static void csv_reader_init(CsvReader *p){
+  p->in = 0;
+  p->z = 0;
+  p->n = 0;
+  p->nAlloc = 0;
+  p->nLine = 0;
+  p->bNotFirst = 0;
+  p->nIn = 0;
+  p->zIn = 0;
+  p->zErr[0] = 0;
+}
+
+/* Close and reset a CsvReader object */
+static void csv_reader_reset(CsvReader *p){
+  if( p->in ){
+    fclose(p->in);
+    sqlite3_free(p->zIn);
+  }
+  sqlite3_free(p->z);
+  csv_reader_init(p);
+}
+
+/* Report an error on a CsvReader */
+static void csv_errmsg(CsvReader *p, const char *zFormat, ...){
+  va_list ap;
+  va_start(ap, zFormat);
+  sqlite3_vsnprintf(CSV_MXERR, p->zErr, zFormat, ap);
+  va_end(ap);
+}
+
+/* Open the file associated with a CsvReader
+** Return the number of errors.
+*/
+static int csv_reader_open(
+  CsvReader *p,               /* The reader to open */
+  const char *zFilename,      /* Read from this filename */
+  const char *zData           /*  ... or use this data */
+){
+  if( zFilename ){
+    p->zIn = sqlite3_malloc( CSV_INBUFSZ );
+    if( p->zIn==0 ){
+      csv_errmsg(p, "out of memory");
+      return 1;
+    }
+    p->in = fopen(zFilename, "rb");
+    if( p->in==0 ){
+      sqlite3_free(p->zIn);
+      csv_reader_reset(p);
+      csv_errmsg(p, "cannot open '%s' for reading", zFilename);
+      return 1;
+    }
+  }else{
+    assert( p->in==0 );
+    p->zIn = (char*)zData;
+    p->nIn = strlen(zData);
+  }
+  return 0;
+}
+
+/* The input buffer has overflowed.  Refill the input buffer, then
+** return the next character
+*/
+static CSV_NOINLINE int csv_getc_refill(CsvReader *p){
+  size_t got;
+
+  assert( p->iIn>=p->nIn );  /* Only called on an empty input buffer */
+  assert( p->in!=0 );        /* Only called if reading froma file */
+
+  got = fread(p->zIn, 1, CSV_INBUFSZ, p->in);
+  if( got==0 ) return EOF;
+  p->nIn = got;
+  p->iIn = 1;
+  return p->zIn[0];
+}
+
+/* Return the next character of input.  Return EOF at end of input. */
+static int csv_getc(CsvReader *p){
+  if( p->iIn >= p->nIn ){
+    if( p->in!=0 ) return csv_getc_refill(p);
+    return EOF;
+  }
+  return ((unsigned char*)p->zIn)[p->iIn++];
+}
+
+/* Increase the size of p->z and append character c to the end. 
+** Return 0 on success and non-zero if there is an OOM error */
+static CSV_NOINLINE int csv_resize_and_append(CsvReader *p, char c){
+  char *zNew;
+  int nNew = p->nAlloc*2 + 100;
+  zNew = sqlite3_realloc64(p->z, nNew);
+  if( zNew ){
+    p->z = zNew;
+    p->nAlloc = nNew;
+    p->z[p->n++] = c;
+    return 0;
+  }else{
+    csv_errmsg(p, "out of memory");
+    return 1;
+  }
+}
+
+/* Append a single character to the CsvReader.z[] array.
+** Return 0 on success and non-zero if there is an OOM error */
+static int csv_append(CsvReader *p, char c){
+  if( p->n>=p->nAlloc-1 ) return csv_resize_and_append(p, c);
+  p->z[p->n++] = c;
+  return 0;
+}
+
+/* Read a single field of CSV text.  Compatible with rfc4180 and extended
+** with the option of having a separator other than ",".
+**
+**   +  Input comes from p->in.
+**   +  Store results in p->z of length p->n.  Space to hold p->z comes
+**      from sqlite3_malloc64().
+**   +  Keep track of the line number in p->nLine.
+**   +  Store the character that terminates the field in p->cTerm.  Store
+**      EOF on end-of-file.
+**
+** Return 0 at EOF or on OOM.  On EOF, the p->cTerm character will have
+** been set to EOF.
+*/
+static char *csv_read_one_field(CsvReader *p){
+  int c;
+  p->n = 0;
+  c = csv_getc(p);
+  if( c==EOF ){
+    p->cTerm = EOF;
+    return 0;
+  }
+  if( c=='"' ){
+    int pc, ppc;
+    int startLine = p->nLine;
+    pc = ppc = 0;
+    while( 1 ){
+      c = csv_getc(p);
+      if( c<='"' || pc=='"' ){
+        if( c=='\n' ) p->nLine++;
+        if( c=='"' ){
+          if( pc=='"' ){
+            pc = 0;
+            continue;
+          }
+        }
+        if( (c==',' && pc=='"')
+         || (c=='\n' && pc=='"')
+         || (c=='\n' && pc=='\r' && ppc=='"')
+         || (c==EOF && pc=='"')
+        ){
+          do{ p->n--; }while( p->z[p->n]!='"' );
+          p->cTerm = (char)c;
+          break;
+        }
+        if( pc=='"' && c!='\r' ){
+          csv_errmsg(p, "line %d: unescaped %c character", p->nLine, '"');
+          break;
+        }
+        if( c==EOF ){
+          csv_errmsg(p, "line %d: unterminated %c-quoted field\n",
+                     startLine, '"');
+          p->cTerm = (char)c;
+          break;
+        }
+      }
+      if( csv_append(p, (char)c) ) return 0;
+      ppc = pc;
+      pc = c;
+    }
+  }else{
+    /* If this is the first field being parsed and it begins with the
+    ** UTF-8 BOM  (0xEF BB BF) then skip the BOM */
+    if( (c&0xff)==0xef && p->bNotFirst==0 ){
+      csv_append(p, (char)c);
+      c = csv_getc(p);
+      if( (c&0xff)==0xbb ){
+        csv_append(p, (char)c);
+        c = csv_getc(p);
+        if( (c&0xff)==0xbf ){
+          p->bNotFirst = 1;
+          p->n = 0;
+          return csv_read_one_field(p);
+        }
+      }
+    }
+    while( c>',' || (c!=EOF && c!=',' && c!='\n') ){
+      if( csv_append(p, (char)c) ) return 0;
+      c = csv_getc(p);
+    }
+    if( c=='\n' ){
+      p->nLine++;
+      if( p->n>0 && p->z[p->n-1]=='\r' ) p->n--;
+    }
+    p->cTerm = (char)c;
+  }
+  assert( p->z==0 || p->n<p->nAlloc );
+  if( p->z ) p->z[p->n] = 0;
+  p->bNotFirst = 1;
+  return p->z;
+}
+
+
+/* Forward references to the various virtual table methods implemented
+** in this file. */
+static int csvtabCreate(sqlite3*, void*, int, const char*const*, 
+                           sqlite3_vtab**,char**);
+static int csvtabConnect(sqlite3*, void*, int, const char*const*, 
+                           sqlite3_vtab**,char**);
+static int csvtabBestIndex(sqlite3_vtab*,sqlite3_index_info*);
+static int csvtabDisconnect(sqlite3_vtab*);
+static int csvtabOpen(sqlite3_vtab*, sqlite3_vtab_cursor**);
+static int csvtabClose(sqlite3_vtab_cursor*);
+static int csvtabFilter(sqlite3_vtab_cursor*, int idxNum, const char *idxStr,
+                          int argc, sqlite3_value **argv);
+static int csvtabNext(sqlite3_vtab_cursor*);
+static int csvtabEof(sqlite3_vtab_cursor*);
+static int csvtabColumn(sqlite3_vtab_cursor*,sqlite3_context*,int);
+static int csvtabRowid(sqlite3_vtab_cursor*,sqlite3_int64*);
+
+/* An instance of the CSV virtual table */
+typedef struct CsvTable {
+  sqlite3_vtab base;              /* Base class.  Must be first */
+  char *zFilename;                /* Name of the CSV file */
+  char *zData;                    /* Raw CSV data in lieu of zFilename */
+  long iStart;                    /* Offset to start of data in zFilename */
+  int nCol;                       /* Number of columns in the CSV file */
+  unsigned int tstFlags;          /* Bit values used for testing */
+} CsvTable;
+
+/* Allowed values for tstFlags */
+#define CSVTEST_FIDX  0x0001      /* Pretend that constrained searchs cost less*/
+
+/* A cursor for the CSV virtual table */
+typedef struct CsvCursor {
+  sqlite3_vtab_cursor base;       /* Base class.  Must be first */
+  CsvReader rdr;                  /* The CsvReader object */
+  char **azVal;                   /* Value of the current row */
+  int *aLen;                      /* Length of each entry */
+  sqlite3_int64 iRowid;           /* The current rowid.  Negative for EOF */
+} CsvCursor;
+
+/* Transfer error message text from a reader into a CsvTable */
+static void csv_xfer_error(CsvTable *pTab, CsvReader *pRdr){
+  sqlite3_free(pTab->base.zErrMsg);
+  pTab->base.zErrMsg = sqlite3_mprintf("%s", pRdr->zErr);
+}
+
+/*
+** This method is the destructor fo a CsvTable object.
+*/
+static int csvtabDisconnect(sqlite3_vtab *pVtab){
+  CsvTable *p = (CsvTable*)pVtab;
+  sqlite3_free(p->zFilename);
+  sqlite3_free(p->zData);
+  sqlite3_free(p);
+  return SQLITE_OK;
+}
+
+/* Skip leading whitespace.  Return a pointer to the first non-whitespace
+** character, or to the zero terminator if the string has only whitespace */
+static const char *csv_skip_whitespace(const char *z){
+  while( isspace((unsigned char)z[0]) ) z++;
+  return z;
+}
+
+/* Remove trailing whitespace from the end of string z[] */
+static void csv_trim_whitespace(char *z){
+  size_t n = strlen(z);
+  while( n>0 && isspace((unsigned char)z[n]) ) n--;
+  z[n] = 0;
+}
+
+/* Dequote the string */
+static void csv_dequote(char *z){
+  int j;
+  char cQuote = z[0];
+  size_t i, n;
+
+  if( cQuote!='\'' && cQuote!='"' ) return;
+  n = strlen(z);
+  if( n<2 || z[n-1]!=z[0] ) return;
+  for(i=1, j=0; i<n-1; i++){
+    if( z[i]==cQuote && z[i+1]==cQuote ) i++;
+    z[j++] = z[i];
+  }
+  z[j] = 0;
+}
+
+/* Check to see if the string is of the form:  "TAG = VALUE" with optional
+** whitespace before and around tokens.  If it is, return a pointer to the
+** first character of VALUE.  If it is not, return NULL.
+*/
+static const char *csv_parameter(const char *zTag, int nTag, const char *z){
+  z = csv_skip_whitespace(z);
+  if( strncmp(zTag, z, nTag)!=0 ) return 0;
+  z = csv_skip_whitespace(z+nTag);
+  if( z[0]!='=' ) return 0;
+  return csv_skip_whitespace(z+1);
+}
+
+/* Decode a parameter that requires a dequoted string.
+**
+** Return 1 if the parameter is seen, or 0 if not.  1 is returned
+** even if there is an error.  If an error occurs, then an error message
+** is left in p->zErr.  If there are no errors, p->zErr[0]==0.
+*/
+static int csv_string_parameter(
+  CsvReader *p,            /* Leave the error message here, if there is one */
+  const char *zParam,      /* Parameter we are checking for */
+  const char *zArg,        /* Raw text of the virtual table argment */
+  char **pzVal             /* Write the dequoted string value here */
+){
+  const char *zValue;
+  zValue = csv_parameter(zParam,(int)strlen(zParam),zArg);
+  if( zValue==0 ) return 0;
+  p->zErr[0] = 0;
+  if( *pzVal ){
+    csv_errmsg(p, "more than one '%s' parameter", zParam);
+    return 1;
+  }
+  *pzVal = sqlite3_mprintf("%s", zValue);
+  if( *pzVal==0 ){
+    csv_errmsg(p, "out of memory");
+    return 1;
+  }
+  csv_trim_whitespace(*pzVal);
+  csv_dequote(*pzVal);
+  return 1;
+}
+
+
+/* Return 0 if the argument is false and 1 if it is true.  Return -1 if
+** we cannot really tell.
+*/
+static int csv_boolean(const char *z){
+  if( sqlite3_stricmp("yes",z)==0
+   || sqlite3_stricmp("on",z)==0
+   || sqlite3_stricmp("true",z)==0
+   || (z[0]=='1' && z[1]==0)
+  ){
+    return 1;
+  }
+  if( sqlite3_stricmp("no",z)==0
+   || sqlite3_stricmp("off",z)==0
+   || sqlite3_stricmp("false",z)==0
+   || (z[0]=='0' && z[1]==0)
+  ){
+    return 0;
+  }
+  return -1;
+}
+
+/* Check to see if the string is of the form:  "TAG = BOOLEAN" or just "TAG".
+** If it is, set *pValue to be the value of the boolean ("true" if there is
+** not "= BOOLEAN" component) and return non-zero.  If the input string
+** does not begin with TAG, return zero.
+*/
+static int csv_boolean_parameter(
+  const char *zTag,       /* Tag we are looking for */
+  int nTag,               /* Size of the tag in bytes */
+  const char *z,          /* Input parameter */
+  int *pValue             /* Write boolean value here */
+){
+  int b;
+  z = csv_skip_whitespace(z);
+  if( strncmp(zTag, z, nTag)!=0 ) return 0;
+  z = csv_skip_whitespace(z + nTag);
+  if( z[0]==0 ){
+    *pValue = 1;
+    return 1;
+  }
+  if( z[0]!='=' ) return 0;
+  z = csv_skip_whitespace(z+1);
+  b = csv_boolean(z);
+  if( b>=0 ){
+    *pValue = b;
+    return 1;
+  }
+  return 0;
+}
+
+/*
+** Parameters:
+**    filename=FILENAME          Name of file containing CSV content
+**    data=TEXT                  Direct CSV content.
+**    schema=SCHEMA              Alternative CSV schema.
+**    header=YES|NO              First row of CSV defines the names of
+**                               columns if "yes".  Default "no".
+**    columns=N                  Assume the CSV file contains N columns.
+**
+** Only available if compiled with SQLITE_TEST:
+**    
+**    testflags=N                Bitmask of test flags.  Optional
+**
+** If schema= is omitted, then the columns are named "c0", "c1", "c2",
+** and so forth.  If columns=N is omitted, then the file is opened and
+** the number of columns in the first row is counted to determine the
+** column count.  If header=YES, then the first row is skipped.
+*/
+static int csvtabConnect(
+  sqlite3 *db,
+  void *pAux,
+  int argc, const char *const*argv,
+  sqlite3_vtab **ppVtab,
+  char **pzErr
+){
+  CsvTable *pNew = 0;        /* The CsvTable object to construct */
+  int bHeader = -1;          /* header= flags.  -1 means not seen yet */
+  int rc = SQLITE_OK;        /* Result code from this routine */
+  int i, j;                  /* Loop counters */
+#ifdef SQLITE_TEST
+  int tstFlags = 0;          /* Value for testflags=N parameter */
+#endif
+  int b;                     /* Value of a boolean parameter */
+  int nCol = -99;            /* Value of the columns= parameter */
+  CsvReader sRdr;            /* A CSV file reader used to store an error
+                             ** message and/or to count the number of columns */
+  static const char *azParam[] = {
+     "filename", "data", "schema", 
+  };
+  char *azPValue[3];         /* Parameter values */
+# define CSV_FILENAME (azPValue[0])
+# define CSV_DATA     (azPValue[1])
+# define CSV_SCHEMA   (azPValue[2])
+
+
+  assert( sizeof(azPValue)==sizeof(azParam) );
+  memset(&sRdr, 0, sizeof(sRdr));
+  memset(azPValue, 0, sizeof(azPValue));
+  for(i=3; i<argc; i++){
+    const char *z = argv[i];
+    const char *zValue;
+    for(j=0; j<sizeof(azParam)/sizeof(azParam[0]); j++){
+      if( csv_string_parameter(&sRdr, azParam[j], z, &azPValue[j]) ) break;
+    }
+    if( j<sizeof(azParam)/sizeof(azParam[0]) ){
+      if( sRdr.zErr[0] ) goto csvtab_connect_error;
+    }else
+    if( csv_boolean_parameter("header",6,z,&b) ){
+      if( bHeader>=0 ){
+        csv_errmsg(&sRdr, "more than one 'header' parameter");
+        goto csvtab_connect_error;
+      }
+      bHeader = b;
+    }else
+#ifdef SQLITE_TEST
+    if( (zValue = csv_parameter("testflags",9,z))!=0 ){
+      tstFlags = (unsigned int)atoi(zValue);
+    }else
+#endif
+    if( (zValue = csv_parameter("columns",7,z))!=0 ){
+      if( nCol>0 ){
+        csv_errmsg(&sRdr, "more than one 'columns' parameter");
+        goto csvtab_connect_error;
+      }
+      nCol = atoi(zValue);
+      if( nCol<=0 ){
+        csv_errmsg(&sRdr, "column= value must be positive");
+        goto csvtab_connect_error;
+      }
+    }else
+    {
+      csv_errmsg(&sRdr, "bad parameter: '%s'", z);
+      goto csvtab_connect_error;
+    }
+  }
+  if( (CSV_FILENAME==0)==(CSV_DATA==0) ){
+    csv_errmsg(&sRdr, "must specify either filename= or data= but not both");
+    goto csvtab_connect_error;
+  }
+
+  if( (nCol<=0 || bHeader==1)
+   && csv_reader_open(&sRdr, CSV_FILENAME, CSV_DATA)
+  ){
+    goto csvtab_connect_error;
+  }
+  pNew = sqlite3_malloc( sizeof(*pNew) );
+  *ppVtab = (sqlite3_vtab*)pNew;
+  if( pNew==0 ) goto csvtab_connect_oom;
+  memset(pNew, 0, sizeof(*pNew));
+  if( CSV_SCHEMA==0 ){
+    sqlite3_str *pStr = sqlite3_str_new(0);
+    char *zSep = "";
+    int iCol = 0;
+    sqlite3_str_appendf(pStr, "CREATE TABLE x(");
+    if( nCol<0 && bHeader<1 ){
+      nCol = 0;
+      do{
+        csv_read_one_field(&sRdr);
+        nCol++;
+      }while( sRdr.cTerm==',' );
+    }
+    if( nCol>0 && bHeader<1 ){
+      for(iCol=0; iCol<nCol; iCol++){
+        sqlite3_str_appendf(pStr, "%sc%d TEXT", zSep, iCol);
+        zSep = ",";
+      }
+    }else{
+      do{
+        char *z = csv_read_one_field(&sRdr);
+        if( (nCol>0 && iCol<nCol) || (nCol<0 && bHeader) ){
+          sqlite3_str_appendf(pStr,"%s\"%w\" TEXT", zSep, z);
+          zSep = ",";
+          iCol++;
+        }
+      }while( sRdr.cTerm==',' );
+      if( nCol<0 ){
+        nCol = iCol;
+      }else{
+        while( iCol<nCol ){
+          sqlite3_str_appendf(pStr,"%sc%d TEXT", zSep, ++iCol);
+          zSep = ",";
+        }
+      }
+    }
+    pNew->nCol = nCol;
+    sqlite3_str_appendf(pStr, ")");
+    CSV_SCHEMA = sqlite3_str_finish(pStr);
+    if( CSV_SCHEMA==0 ) goto csvtab_connect_oom;
+  }else if( nCol<0 ){
+    do{
+      csv_read_one_field(&sRdr);
+      pNew->nCol++;
+    }while( sRdr.cTerm==',' );
+  }else{
+    pNew->nCol = nCol;
+  }
+  pNew->zFilename = CSV_FILENAME;  CSV_FILENAME = 0;
+  pNew->zData = CSV_DATA;          CSV_DATA = 0;
+#ifdef SQLITE_TEST
+  pNew->tstFlags = tstFlags;
+#endif
+  if( bHeader!=1 ){
+    pNew->iStart = 0;
+  }else if( pNew->zData ){
+    pNew->iStart = (int)sRdr.iIn;
+  }else{
+    pNew->iStart = (int)(ftell(sRdr.in) - sRdr.nIn + sRdr.iIn);
+  }
+  csv_reader_reset(&sRdr);
+  rc = sqlite3_declare_vtab(db, CSV_SCHEMA);
+  if( rc ){
+    csv_errmsg(&sRdr, "bad schema: '%s' - %s", CSV_SCHEMA, sqlite3_errmsg(db));
+    goto csvtab_connect_error;
+  }
+  for(i=0; i<sizeof(azPValue)/sizeof(azPValue[0]); i++){
+    sqlite3_free(azPValue[i]);
+  }
+  /* Rationale for DIRECTONLY:
+  ** An attacker who controls a database schema could use this vtab
+  ** to exfiltrate sensitive data from other files in the filesystem.
+  ** And, recommended practice is to put all CSV virtual tables in the
+  ** TEMP namespace, so they should still be usable from within TEMP
+  ** views, so there shouldn't be a serious loss of functionality by
+  ** prohibiting the use of this vtab from persistent triggers and views.
+  */
+  sqlite3_vtab_config(db, SQLITE_VTAB_DIRECTONLY);
+  return SQLITE_OK;
+
+csvtab_connect_oom:
+  rc = SQLITE_NOMEM;
+  csv_errmsg(&sRdr, "out of memory");
+
+csvtab_connect_error:
+  if( pNew ) csvtabDisconnect(&pNew->base);
+  for(i=0; i<sizeof(azPValue)/sizeof(azPValue[0]); i++){
+    sqlite3_free(azPValue[i]);
+  }
+  if( sRdr.zErr[0] ){
+    sqlite3_free(*pzErr);
+    *pzErr = sqlite3_mprintf("%s", sRdr.zErr);
+  }
+  csv_reader_reset(&sRdr);
+  if( rc==SQLITE_OK ) rc = SQLITE_ERROR;
+  return rc;
+}
+
+/*
+** Reset the current row content held by a CsvCursor.
+*/
+static void csvtabCursorRowReset(CsvCursor *pCur){
+  CsvTable *pTab = (CsvTable*)pCur->base.pVtab;
+  int i;
+  for(i=0; i<pTab->nCol; i++){
+    sqlite3_free(pCur->azVal[i]);
+    pCur->azVal[i] = 0;
+    pCur->aLen[i] = 0;
+  }
+}
+
+/*
+** The xConnect and xCreate methods do the same thing, but they must be
+** different so that the virtual table is not an eponymous virtual table.
+*/
+static int csvtabCreate(
+  sqlite3 *db,
+  void *pAux,
+  int argc, const char *const*argv,
+  sqlite3_vtab **ppVtab,
+  char **pzErr
+){
+ return csvtabConnect(db, pAux, argc, argv, ppVtab, pzErr);
+}
+
+/*
+** Destructor for a CsvCursor.
+*/
+static int csvtabClose(sqlite3_vtab_cursor *cur){
+  CsvCursor *pCur = (CsvCursor*)cur;
+  csvtabCursorRowReset(pCur);
+  csv_reader_reset(&pCur->rdr);
+  sqlite3_free(cur);
+  return SQLITE_OK;
+}
+
+/*
+** Constructor for a new CsvTable cursor object.
+*/
+static int csvtabOpen(sqlite3_vtab *p, sqlite3_vtab_cursor **ppCursor){
+  CsvTable *pTab = (CsvTable*)p;
+  CsvCursor *pCur;
+  size_t nByte;
+  nByte = sizeof(*pCur) + (sizeof(char*)+sizeof(int))*pTab->nCol;
+  pCur = sqlite3_malloc64( nByte );
+  if( pCur==0 ) return SQLITE_NOMEM;
+  memset(pCur, 0, nByte);
+  pCur->azVal = (char**)&pCur[1];
+  pCur->aLen = (int*)&pCur->azVal[pTab->nCol];
+  *ppCursor = &pCur->base;
+  if( csv_reader_open(&pCur->rdr, pTab->zFilename, pTab->zData) ){
+    csv_xfer_error(pTab, &pCur->rdr);
+    return SQLITE_ERROR;
+  }
+  return SQLITE_OK;
+}
+
+
+/*
+** Advance a CsvCursor to its next row of input.
+** Set the EOF marker if we reach the end of input.
+*/
+static int csvtabNext(sqlite3_vtab_cursor *cur){
+  CsvCursor *pCur = (CsvCursor*)cur;
+  CsvTable *pTab = (CsvTable*)cur->pVtab;
+  int i = 0;
+  char *z;
+  do{
+    z = csv_read_one_field(&pCur->rdr);
+    if( z==0 ){
+      break;
+    }
+    if( i<pTab->nCol ){
+      if( pCur->aLen[i] < pCur->rdr.n+1 ){
+        char *zNew = sqlite3_realloc64(pCur->azVal[i], pCur->rdr.n+1);
+        if( zNew==0 ){
+          csv_errmsg(&pCur->rdr, "out of memory");
+          csv_xfer_error(pTab, &pCur->rdr);
+          break;
+        }
+        pCur->azVal[i] = zNew;
+        pCur->aLen[i] = pCur->rdr.n+1;
+      }
+      memcpy(pCur->azVal[i], z, pCur->rdr.n+1);
+      i++;
+    }
+  }while( pCur->rdr.cTerm==',' );
+  if( z==0 && i==0 ){
+    pCur->iRowid = -1;
+  }else{
+    pCur->iRowid++;
+    while( i<pTab->nCol ){
+      sqlite3_free(pCur->azVal[i]);
+      pCur->azVal[i] = 0;
+      pCur->aLen[i] = 0;
+      i++;
+    }
+  }
+  return SQLITE_OK;
+}
+
+/*
+** Return values of columns for the row at which the CsvCursor
+** is currently pointing.
+*/
+static int csvtabColumn(
+  sqlite3_vtab_cursor *cur,   /* The cursor */
+  sqlite3_context *ctx,       /* First argument to sqlite3_result_...() */
+  int i                       /* Which column to return */
+){
+  CsvCursor *pCur = (CsvCursor*)cur;
+  CsvTable *pTab = (CsvTable*)cur->pVtab;
+  if( i>=0 && i<pTab->nCol && pCur->azVal[i]!=0 ){
+    sqlite3_result_text(ctx, pCur->azVal[i], -1, SQLITE_TRANSIENT);
+  }
+  return SQLITE_OK;
+}
+
+/*
+** Return the rowid for the current row.
+*/
+static int csvtabRowid(sqlite3_vtab_cursor *cur, sqlite_int64 *pRowid){
+  CsvCursor *pCur = (CsvCursor*)cur;
+  *pRowid = pCur->iRowid;
+  return SQLITE_OK;
+}
+
+/*
+** Return TRUE if the cursor has been moved off of the last
+** row of output.
+*/
+static int csvtabEof(sqlite3_vtab_cursor *cur){
+  CsvCursor *pCur = (CsvCursor*)cur;
+  return pCur->iRowid<0;
+}
+
+/*
+** Only a full table scan is supported.  So xFilter simply rewinds to
+** the beginning.
+*/
+static int csvtabFilter(
+  sqlite3_vtab_cursor *pVtabCursor, 
+  int idxNum, const char *idxStr,
+  int argc, sqlite3_value **argv
+){
+  CsvCursor *pCur = (CsvCursor*)pVtabCursor;
+  CsvTable *pTab = (CsvTable*)pVtabCursor->pVtab;
+  pCur->iRowid = 0;
+
+  /* Ensure the field buffer is always allocated. Otherwise, if the
+  ** first field is zero bytes in size, this may be mistaken for an OOM
+  ** error in csvtabNext(). */
+  if( csv_append(&pCur->rdr, 0) ) return SQLITE_NOMEM;
+
+  if( pCur->rdr.in==0 ){
+    assert( pCur->rdr.zIn==pTab->zData );
+    assert( pTab->iStart>=0 );
+    assert( (size_t)pTab->iStart<=pCur->rdr.nIn );
+    pCur->rdr.iIn = pTab->iStart;
+  }else{
+    fseek(pCur->rdr.in, pTab->iStart, SEEK_SET);
+    pCur->rdr.iIn = 0;
+    pCur->rdr.nIn = 0;
+  }
+  return csvtabNext(pVtabCursor);
+}
+
+/*
+** Only a forward full table scan is supported.  xBestIndex is mostly
+** a no-op.  If CSVTEST_FIDX is set, then the presence of equality
+** constraints lowers the estimated cost, which is fiction, but is useful
+** for testing certain kinds of virtual table behavior.
+*/
+static int csvtabBestIndex(
+  sqlite3_vtab *tab,
+  sqlite3_index_info *pIdxInfo
+){
+  pIdxInfo->estimatedCost = 1000000;
+#ifdef SQLITE_TEST
+  if( (((CsvTable*)tab)->tstFlags & CSVTEST_FIDX)!=0 ){
+    /* The usual (and sensible) case is to always do a full table scan.
+    ** The code in this branch only runs when testflags=1.  This code
+    ** generates an artifical and unrealistic plan which is useful
+    ** for testing virtual table logic but is not helpful to real applications.
+    **
+    ** Any ==, LIKE, or GLOB constraint is marked as usable by the virtual
+    ** table (even though it is not) and the cost of running the virtual table
+    ** is reduced from 1 million to just 10.  The constraints are *not* marked
+    ** as omittable, however, so the query planner should still generate a
+    ** plan that gives a correct answer, even if they plan is not optimal.
+    */
+    int i;
+    int nConst = 0;
+    for(i=0; i<pIdxInfo->nConstraint; i++){
+      unsigned char op;
+      if( pIdxInfo->aConstraint[i].usable==0 ) continue;
+      op = pIdxInfo->aConstraint[i].op;
+      if( op==SQLITE_INDEX_CONSTRAINT_EQ 
+       || op==SQLITE_INDEX_CONSTRAINT_LIKE
+       || op==SQLITE_INDEX_CONSTRAINT_GLOB
+      ){
+        pIdxInfo->estimatedCost = 10;
+        pIdxInfo->aConstraintUsage[nConst].argvIndex = nConst+1;
+        nConst++;
+      }
+    }
+  }
+#endif
+  return SQLITE_OK;
+}
+
+
+static sqlite3_module CsvModule = {
+  0,                       /* iVersion */
+  csvtabCreate,            /* xCreate */
+  csvtabConnect,           /* xConnect */
+  csvtabBestIndex,         /* xBestIndex */
+  csvtabDisconnect,        /* xDisconnect */
+  csvtabDisconnect,        /* xDestroy */
+  csvtabOpen,              /* xOpen - open a cursor */
+  csvtabClose,             /* xClose - close a cursor */
+  csvtabFilter,            /* xFilter - configure scan constraints */
+  csvtabNext,              /* xNext - advance a cursor */
+  csvtabEof,               /* xEof - check for end of scan */
+  csvtabColumn,            /* xColumn - read data */
+  csvtabRowid,             /* xRowid - read data */
+  0,                       /* xUpdate */
+  0,                       /* xBegin */
+  0,                       /* xSync */
+  0,                       /* xCommit */
+  0,                       /* xRollback */
+  0,                       /* xFindMethod */
+  0,                       /* xRename */
+  0,                       /* xSavepoint */
+  0,                       /* xRelease */
+  0,                       /* xRollbackTo */
+  0,                       /* xShadowName */
+  0                        /* xIntegrity */
+};
+
+#ifdef SQLITE_TEST
+/*
+** For virtual table testing, make a version of the CSV virtual table
+** available that has an xUpdate function.  But the xUpdate always returns
+** SQLITE_READONLY since the CSV file is not really writable.
+*/
+static int csvtabUpdate(sqlite3_vtab *p,int n,sqlite3_value**v,sqlite3_int64*x){
+  return SQLITE_READONLY;
+}
+static sqlite3_module CsvModuleFauxWrite = {
+  0,                       /* iVersion */
+  csvtabCreate,            /* xCreate */
+  csvtabConnect,           /* xConnect */
+  csvtabBestIndex,         /* xBestIndex */
+  csvtabDisconnect,        /* xDisconnect */
+  csvtabDisconnect,        /* xDestroy */
+  csvtabOpen,              /* xOpen - open a cursor */
+  csvtabClose,             /* xClose - close a cursor */
+  csvtabFilter,            /* xFilter - configure scan constraints */
+  csvtabNext,              /* xNext - advance a cursor */
+  csvtabEof,               /* xEof - check for end of scan */
+  csvtabColumn,            /* xColumn - read data */
+  csvtabRowid,             /* xRowid - read data */
+  csvtabUpdate,            /* xUpdate */
+  0,                       /* xBegin */
+  0,                       /* xSync */
+  0,                       /* xCommit */
+  0,                       /* xRollback */
+  0,                       /* xFindMethod */
+  0,                       /* xRename */
+  0,                       /* xSavepoint */
+  0,                       /* xRelease */
+  0,                       /* xRollbackTo */
+  0,                       /* xShadowName */
+  0                        /* xIntegrity */
+};
+#endif /* SQLITE_TEST */
+
+#endif /* !defined(SQLITE_OMIT_VIRTUALTABLE) */
+
+
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+/* 
+** This routine is called when the extension is loaded.  The new
+** CSV virtual table module is registered with the calling database
+** connection.
+*/
+int sqlite3_csv_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+  int rc;
+  SQLITE_EXTENSION_INIT2(pApi);
+  rc = sqlite3_create_module(db, "csv", &CsvModule, 0);
+#ifdef SQLITE_TEST
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_module(db, "csv_wr", &CsvModuleFauxWrite, 0);
+  }
+#endif
+  return rc;
+#else
+  return SQLITE_OK;
+#endif
+}
diff --git a/ext/misc/dbdump.c b/ext/misc/dbdump.c
new file mode 100644
index 0000000000000000000000000000000000000000..ecf7d810d514833823227136af6bd8bfe0781093
--- /dev/null
+++ b/ext/misc/dbdump.c
@@ -0,0 +1,724 @@
+/*
+** 2016-03-13
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This file implements a C-language subroutine that converts the content
+** of an SQLite database into UTF-8 text SQL statements that can be used
+** to exactly recreate the original database.  ROWID values are preserved.
+**
+** A prototype of the implemented subroutine is this:
+**
+**   int sqlite3_db_dump(
+**          sqlite3 *db,
+**          const char *zSchema,
+**          const char *zTable,
+**          void (*xCallback)(void*, const char*),
+**          void *pArg
+**   );
+**
+** The db parameter is the database connection.  zSchema is the schema within
+** that database which is to be dumped.  Usually the zSchema is "main" but
+** can also be "temp" or any ATTACH-ed database.  If zTable is not NULL, then
+** only the content of that one table is dumped.  If zTable is NULL, then all
+** tables are dumped.
+**
+** The generate text is passed to xCallback() in multiple calls.  The second
+** argument to xCallback() is a copy of the pArg parameter.  The first
+** argument is some of the output text that this routine generates.  The
+** signature to xCallback() is designed to make it compatible with fputs().
+**
+** The sqlite3_db_dump() subroutine returns SQLITE_OK on success or some error
+** code if it encounters a problem.
+**
+** If this file is compiled with -DDBDUMP_STANDALONE then a "main()" routine
+** is included so that this routine becomes a command-line utility.  The
+** command-line utility takes two or three arguments which are the name
+** of the database file, the schema, and optionally the table, forming the
+** first three arguments of a single call to the library routine.
+*/
+#include "sqlite3.h"
+#include <stdarg.h>
+#include <string.h>
+#include <ctype.h>
+
+/*
+** The state of the dump process.
+*/
+typedef struct DState DState;
+struct DState {
+  sqlite3 *db;                /* The database connection */
+  int nErr;                   /* Number of errors seen so far */
+  int rc;                     /* Error code */
+  int writableSchema;                    /* True if in writable_schema mode */
+  int (*xCallback)(const char*,void*);   /* Send output here */
+  void *pArg;                            /* Argument to xCallback() */
+};
+
+/*
+** A variable length string to which one can append text.
+*/
+typedef struct DText DText;
+struct DText {
+  char *z;           /* The text */
+  int n;             /* Number of bytes of content in z[] */
+  int nAlloc;        /* Number of bytes allocated to z[] */
+};
+
+/*
+** Initialize and destroy a DText object
+*/
+static void initText(DText *p){
+  memset(p, 0, sizeof(*p));
+}
+static void freeText(DText *p){
+  sqlite3_free(p->z);
+  initText(p);
+}
+
+/* zIn is either a pointer to a NULL-terminated string in memory obtained
+** from malloc(), or a NULL pointer. The string pointed to by zAppend is
+** added to zIn, and the result returned in memory obtained from malloc().
+** zIn, if it was not NULL, is freed.
+**
+** If the third argument, quote, is not '\0', then it is used as a
+** quote character for zAppend.
+*/
+static void appendText(DText *p, char const *zAppend, char quote){
+  int len;
+  int i;
+  int nAppend = (int)(strlen(zAppend) & 0x3fffffff);
+
+  len = nAppend+p->n+1;
+  if( quote ){
+    len += 2;
+    for(i=0; i<nAppend; i++){
+      if( zAppend[i]==quote ) len++;
+    }
+  }
+
+  if( p->n+len>=p->nAlloc ){
+    char *zNew;
+    p->nAlloc = p->nAlloc*2 + len + 20;
+    zNew = sqlite3_realloc(p->z, p->nAlloc);
+    if( zNew==0 ){
+      freeText(p);
+      return;
+    }
+    p->z = zNew;
+  }
+
+  if( quote ){
+    char *zCsr = p->z+p->n;
+    *zCsr++ = quote;
+    for(i=0; i<nAppend; i++){
+      *zCsr++ = zAppend[i];
+      if( zAppend[i]==quote ) *zCsr++ = quote;
+    }
+    *zCsr++ = quote;
+    p->n = (int)(zCsr - p->z);
+    *zCsr = '\0';
+  }else{
+    memcpy(p->z+p->n, zAppend, nAppend);
+    p->n += nAppend;
+    p->z[p->n] = '\0';
+  }
+}
+
+/*
+** Attempt to determine if identifier zName needs to be quoted, either
+** because it contains non-alphanumeric characters, or because it is an
+** SQLite keyword.  Be conservative in this estimate:  When in doubt assume
+** that quoting is required.
+**
+** Return '"' if quoting is required.  Return 0 if no quoting is required.
+*/
+static char quoteChar(const char *zName){
+  int i;
+  if( !isalpha((unsigned char)zName[0]) && zName[0]!='_' ) return '"';
+  for(i=0; zName[i]; i++){
+    if( !isalnum((unsigned char)zName[i]) && zName[i]!='_' ) return '"';
+  }
+  return sqlite3_keyword_check(zName, i) ? '"' : 0;
+}
+
+
+/*
+** Release memory previously allocated by tableColumnList().
+*/
+static void freeColumnList(char **azCol){
+  int i;
+  for(i=1; azCol[i]; i++){
+    sqlite3_free(azCol[i]);
+  }
+  /* azCol[0] is a static string */
+  sqlite3_free(azCol);
+}
+
+/*
+** Return a list of pointers to strings which are the names of all
+** columns in table zTab.   The memory to hold the names is dynamically
+** allocated and must be released by the caller using a subsequent call
+** to freeColumnList().
+**
+** The azCol[0] entry is usually NULL.  However, if zTab contains a rowid
+** value that needs to be preserved, then azCol[0] is filled in with the
+** name of the rowid column.
+**
+** The first regular column in the table is azCol[1].  The list is terminated
+** by an entry with azCol[i]==0.
+*/
+static char **tableColumnList(DState *p, const char *zTab){
+  char **azCol = 0;
+  sqlite3_stmt *pStmt = 0;
+  char *zSql;
+  int nCol = 0;
+  int nAlloc = 0;
+  int nPK = 0;       /* Number of PRIMARY KEY columns seen */
+  int isIPK = 0;     /* True if one PRIMARY KEY column of type INTEGER */
+  int preserveRowid = 1;
+  int rc;
+
+  zSql = sqlite3_mprintf("PRAGMA table_info=%Q", zTab);
+  if( zSql==0 ) return 0;
+  rc = sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0);
+  sqlite3_free(zSql);
+  if( rc ) return 0;
+  while( sqlite3_step(pStmt)==SQLITE_ROW ){
+    if( nCol>=nAlloc-2 ){
+      char **azNew;
+      nAlloc = nAlloc*2 + nCol + 10;
+      azNew = sqlite3_realloc64(azCol, nAlloc*sizeof(azCol[0]));
+      if( azNew==0 ) goto col_oom;
+      azCol = azNew;
+      azCol[0] = 0;
+    }
+    azCol[++nCol] = sqlite3_mprintf("%s", sqlite3_column_text(pStmt, 1));
+    if( azCol[nCol]==0 ) goto col_oom;
+    if( sqlite3_column_int(pStmt, 5) ){
+      nPK++;
+      if( nPK==1
+       && sqlite3_stricmp((const char*)sqlite3_column_text(pStmt,2),
+                          "INTEGER")==0 
+      ){
+        isIPK = 1;
+      }else{
+        isIPK = 0;
+      }
+    }
+  }
+  sqlite3_finalize(pStmt);
+  pStmt = 0;
+  azCol[nCol+1] = 0;
+
+  /* The decision of whether or not a rowid really needs to be preserved
+  ** is tricky.  We never need to preserve a rowid for a WITHOUT ROWID table
+  ** or a table with an INTEGER PRIMARY KEY.  We are unable to preserve
+  ** rowids on tables where the rowid is inaccessible because there are other
+  ** columns in the table named "rowid", "_rowid_", and "oid".
+  */
+  if( isIPK ){
+    /* If a single PRIMARY KEY column with type INTEGER was seen, then it
+    ** might be an alise for the ROWID.  But it might also be a WITHOUT ROWID
+    ** table or a INTEGER PRIMARY KEY DESC column, neither of which are
+    ** ROWID aliases.  To distinguish these cases, check to see if
+    ** there is a "pk" entry in "PRAGMA index_list".  There will be
+    ** no "pk" index if the PRIMARY KEY really is an alias for the ROWID.
+    */
+    zSql = sqlite3_mprintf("SELECT 1 FROM pragma_index_list(%Q)"
+                           " WHERE origin='pk'", zTab);
+    if( zSql==0 ) goto col_oom;
+    rc = sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0);
+    sqlite3_free(zSql);
+    if( rc ){
+      freeColumnList(azCol);
+      return 0;
+    }
+    rc = sqlite3_step(pStmt);
+    sqlite3_finalize(pStmt);
+    pStmt = 0;
+    preserveRowid = rc==SQLITE_ROW;
+  }
+  if( preserveRowid ){
+    /* Only preserve the rowid if we can find a name to use for the
+    ** rowid */
+    static char *azRowid[] = { "rowid", "_rowid_", "oid" };
+    int i, j;
+    for(j=0; j<3; j++){
+      for(i=1; i<=nCol; i++){
+        if( sqlite3_stricmp(azRowid[j],azCol[i])==0 ) break;
+      }
+      if( i>nCol ){
+        /* At this point, we know that azRowid[j] is not the name of any
+        ** ordinary column in the table.  Verify that azRowid[j] is a valid
+        ** name for the rowid before adding it to azCol[0].  WITHOUT ROWID
+        ** tables will fail this last check */
+        rc = sqlite3_table_column_metadata(p->db,0,zTab,azRowid[j],0,0,0,0,0);
+        if( rc==SQLITE_OK ) azCol[0] = azRowid[j];
+        break;
+      }
+    }
+  }
+  return azCol;
+
+col_oom:
+  sqlite3_finalize(pStmt);
+  freeColumnList(azCol);
+  p->nErr++;
+  p->rc = SQLITE_NOMEM;
+  return 0;
+}
+
+/*
+** Send mprintf-formatted content to the output callback.
+*/
+static void output_formatted(DState *p, const char *zFormat, ...){
+  va_list ap;
+  char *z;
+  va_start(ap, zFormat);
+  z = sqlite3_vmprintf(zFormat, ap);
+  va_end(ap);
+  p->xCallback(z, p->pArg);
+  sqlite3_free(z);
+}
+
+/*
+** Find a string that is not found anywhere in z[].  Return a pointer
+** to that string.
+**
+** Try to use zA and zB first.  If both of those are already found in z[]
+** then make up some string and store it in the buffer zBuf.
+*/
+static const char *unused_string(
+  const char *z,                    /* Result must not appear anywhere in z */
+  const char *zA, const char *zB,   /* Try these first */
+  char *zBuf                        /* Space to store a generated string */
+){
+  unsigned i = 0;
+  if( strstr(z, zA)==0 ) return zA;
+  if( strstr(z, zB)==0 ) return zB;
+  do{
+    sqlite3_snprintf(20,zBuf,"(%s%u)", zA, i++);
+  }while( strstr(z,zBuf)!=0 );
+  return zBuf;
+}
+
+/*
+** Output the given string as a quoted string using SQL quoting conventions.
+** Additionallly , escape the "\n" and "\r" characters so that they do not
+** get corrupted by end-of-line translation facilities in some operating
+** systems.
+*/
+static void output_quoted_escaped_string(DState *p, const char *z){
+  int i;
+  char c;
+  for(i=0; (c = z[i])!=0 && c!='\'' && c!='\n' && c!='\r'; i++){}
+  if( c==0 ){
+    output_formatted(p,"'%s'",z);
+  }else{
+    const char *zNL = 0;
+    const char *zCR = 0;
+    int nNL = 0;
+    int nCR = 0;
+    char zBuf1[20], zBuf2[20];
+    for(i=0; z[i]; i++){
+      if( z[i]=='\n' ) nNL++;
+      if( z[i]=='\r' ) nCR++;
+    }
+    if( nNL ){
+      p->xCallback("replace(", p->pArg);
+      zNL = unused_string(z, "\\n", "\\012", zBuf1);
+    }
+    if( nCR ){
+      p->xCallback("replace(", p->pArg);
+      zCR = unused_string(z, "\\r", "\\015", zBuf2);
+    }
+    p->xCallback("'", p->pArg);
+    while( *z ){
+      for(i=0; (c = z[i])!=0 && c!='\n' && c!='\r' && c!='\''; i++){}
+      if( c=='\'' ) i++;
+      if( i ){
+        output_formatted(p, "%.*s", i, z);
+        z += i;
+      }
+      if( c=='\'' ){
+        p->xCallback("'", p->pArg);
+        continue;
+      }
+      if( c==0 ){
+        break;
+      }
+      z++;
+      if( c=='\n' ){
+        p->xCallback(zNL, p->pArg);
+        continue;
+      }
+      p->xCallback(zCR, p->pArg);
+    }
+    p->xCallback("'", p->pArg);
+    if( nCR ){
+      output_formatted(p, ",'%s',char(13))", zCR);
+    }
+    if( nNL ){
+      output_formatted(p, ",'%s',char(10))", zNL);
+    }
+  }
+}
+
+/*
+** This is an sqlite3_exec callback routine used for dumping the database.
+** Each row received by this callback consists of a table name,
+** the table type ("index" or "table") and SQL to create the table.
+** This routine should print text sufficient to recreate the table.
+*/
+static int dump_callback(void *pArg, int nArg, char **azArg, char **azCol){
+  int rc;
+  const char *zTable;
+  const char *zType;
+  const char *zSql;
+  DState *p = (DState*)pArg;
+  sqlite3_stmt *pStmt;
+
+  (void)azCol;
+  if( nArg!=3 ) return 1;
+  zTable = azArg[0];
+  zType = azArg[1];
+  zSql = azArg[2];
+
+  if( strcmp(zTable, "sqlite_sequence")==0 ){
+    p->xCallback("DELETE FROM sqlite_sequence;\n", p->pArg);
+  }else if( sqlite3_strglob("sqlite_stat?", zTable)==0 ){
+    p->xCallback("ANALYZE sqlite_schema;\n", p->pArg);
+  }else if( strncmp(zTable, "sqlite_", 7)==0 ){
+    return 0;
+  }else if( strncmp(zSql, "CREATE VIRTUAL TABLE", 20)==0 ){
+    if( !p->writableSchema ){
+      p->xCallback("PRAGMA writable_schema=ON;\n", p->pArg);
+      p->writableSchema = 1;
+    }
+    output_formatted(p,
+       "INSERT INTO sqlite_schema(type,name,tbl_name,rootpage,sql)"
+       "VALUES('table','%q','%q',0,'%q');",
+       zTable, zTable, zSql);
+    return 0;
+  }else{
+    if( sqlite3_strglob("CREATE TABLE ['\"]*", zSql)==0 ){
+      p->xCallback("CREATE TABLE IF NOT EXISTS ", p->pArg);
+      p->xCallback(zSql+13, p->pArg);
+    }else{
+      p->xCallback(zSql, p->pArg);
+    }
+    p->xCallback(";\n", p->pArg);
+  }
+
+  if( strcmp(zType, "table")==0 ){
+    DText sSelect;
+    DText sTable;
+    char **azTCol;
+    int i;
+    int nCol;
+
+    azTCol = tableColumnList(p, zTable);
+    if( azTCol==0 ) return 0;
+
+    initText(&sTable);
+    appendText(&sTable, "INSERT INTO ", 0);
+
+    /* Always quote the table name, even if it appears to be pure ascii,
+    ** in case it is a keyword. Ex:  INSERT INTO "table" ... */
+    appendText(&sTable, zTable, quoteChar(zTable));
+
+    /* If preserving the rowid, add a column list after the table name.
+    ** In other words:  "INSERT INTO tab(rowid,a,b,c,...) VALUES(...)"
+    ** instead of the usual "INSERT INTO tab VALUES(...)".
+    */
+    if( azTCol[0] ){
+      appendText(&sTable, "(", 0);
+      appendText(&sTable, azTCol[0], 0);
+      for(i=1; azTCol[i]; i++){
+        appendText(&sTable, ",", 0);
+        appendText(&sTable, azTCol[i], quoteChar(azTCol[i]));
+      }
+      appendText(&sTable, ")", 0);
+    }
+    appendText(&sTable, " VALUES(", 0);
+
+    /* Build an appropriate SELECT statement */
+    initText(&sSelect);
+    appendText(&sSelect, "SELECT ", 0);
+    if( azTCol[0] ){
+      appendText(&sSelect, azTCol[0], 0);
+      appendText(&sSelect, ",", 0);
+    }
+    for(i=1; azTCol[i]; i++){
+      appendText(&sSelect, azTCol[i], quoteChar(azTCol[i]));
+      if( azTCol[i+1] ){
+        appendText(&sSelect, ",", 0);
+      }
+    }
+    nCol = i;
+    if( azTCol[0]==0 ) nCol--;
+    freeColumnList(azTCol);
+    appendText(&sSelect, " FROM ", 0);
+    appendText(&sSelect, zTable, quoteChar(zTable));
+
+    rc = sqlite3_prepare_v2(p->db, sSelect.z, -1, &pStmt, 0);
+    if( rc!=SQLITE_OK ){
+      p->nErr++;
+      if( p->rc==SQLITE_OK ) p->rc = rc;
+    }else{
+      while( SQLITE_ROW==sqlite3_step(pStmt) ){
+        p->xCallback(sTable.z, p->pArg);
+        for(i=0; i<nCol; i++){
+          if( i ) p->xCallback(",", p->pArg);
+          switch( sqlite3_column_type(pStmt,i) ){
+            case SQLITE_INTEGER: {
+              output_formatted(p, "%lld", sqlite3_column_int64(pStmt,i));
+              break;
+            }
+            case SQLITE_FLOAT: {
+              double r = sqlite3_column_double(pStmt,i);
+              sqlite3_uint64 ur;
+              memcpy(&ur,&r,sizeof(r));
+              if( ur==0x7ff0000000000000LL ){
+                p->xCallback("1e999", p->pArg);
+              }else if( ur==0xfff0000000000000LL ){
+                p->xCallback("-1e999", p->pArg);
+              }else{
+                output_formatted(p, "%!.20g", r);
+              }
+              break;
+            }
+            case SQLITE_NULL: {
+              p->xCallback("NULL", p->pArg);
+              break;
+            }
+            case SQLITE_TEXT: {
+              output_quoted_escaped_string(p, 
+                   (const char*)sqlite3_column_text(pStmt,i));
+              break;
+            }
+            case SQLITE_BLOB: {
+              int nByte = sqlite3_column_bytes(pStmt,i);
+              unsigned char *a = (unsigned char*)sqlite3_column_blob(pStmt,i);
+              int j;
+              p->xCallback("x'", p->pArg);
+              for(j=0; j<nByte; j++){
+                char zWord[3];
+                zWord[0] = "0123456789abcdef"[(a[j]>>4)&15];
+                zWord[1] = "0123456789abcdef"[a[j]&15];
+                zWord[2] = 0;
+                p->xCallback(zWord, p->pArg);
+              }
+              p->xCallback("'", p->pArg);
+              break;
+            }
+          }
+        }
+        p->xCallback(");\n", p->pArg);
+      }
+    }
+    sqlite3_finalize(pStmt);
+    freeText(&sTable);
+    freeText(&sSelect);
+  }
+  return 0;
+}
+
+
+/*
+** Execute a query statement that will generate SQL output.  Print
+** the result columns, comma-separated, on a line and then add a
+** semicolon terminator to the end of that line.
+**
+** If the number of columns is 1 and that column contains text "--"
+** then write the semicolon on a separate line.  That way, if a
+** "--" comment occurs at the end of the statement, the comment
+** won't consume the semicolon terminator.
+*/
+static void output_sql_from_query(
+  DState *p,               /* Query context */
+  const char *zSelect,     /* SELECT statement to extract content */
+  ...
+){
+  sqlite3_stmt *pSelect;
+  int rc;
+  int nResult;
+  int i;
+  const char *z;
+  char *zSql;
+  va_list ap;
+  va_start(ap, zSelect);
+  zSql = sqlite3_vmprintf(zSelect, ap);
+  va_end(ap);
+  if( zSql==0 ){
+    p->rc = SQLITE_NOMEM;
+    p->nErr++;
+    return;
+  }
+  rc = sqlite3_prepare_v2(p->db, zSql, -1, &pSelect, 0);
+  sqlite3_free(zSql);
+  if( rc!=SQLITE_OK || !pSelect ){
+    output_formatted(p, "/**** ERROR: (%d) %s *****/\n", rc,
+                sqlite3_errmsg(p->db));
+    p->nErr++;
+    return;
+  }
+  rc = sqlite3_step(pSelect);
+  nResult = sqlite3_column_count(pSelect);
+  while( rc==SQLITE_ROW ){
+    z = (const char*)sqlite3_column_text(pSelect, 0);
+    p->xCallback(z, p->pArg);
+    for(i=1; i<nResult; i++){
+      p->xCallback(",", p->pArg);
+      p->xCallback((const char*)sqlite3_column_text(pSelect,i), p->pArg);
+    }
+    if( z==0 ) z = "";
+    while( z[0] && (z[0]!='-' || z[1]!='-') ) z++;
+    if( z[0] ){
+      p->xCallback("\n;\n", p->pArg);
+    }else{
+      p->xCallback(";\n", p->pArg);
+    }
+    rc = sqlite3_step(pSelect);
+  }
+  rc = sqlite3_finalize(pSelect);
+  if( rc!=SQLITE_OK ){
+    output_formatted(p, "/**** ERROR: (%d) %s *****/\n", rc,
+                     sqlite3_errmsg(p->db));
+    if( (rc&0xff)!=SQLITE_CORRUPT ) p->nErr++;
+  }
+}
+
+/*
+** Run zQuery.  Use dump_callback() as the callback routine so that
+** the contents of the query are output as SQL statements.
+**
+** If we get a SQLITE_CORRUPT error, rerun the query after appending
+** "ORDER BY rowid DESC" to the end.
+*/
+static void run_schema_dump_query(
+  DState *p,
+  const char *zQuery,
+  ...
+){
+  char *zErr = 0;
+  char *z;
+  va_list ap;
+  va_start(ap, zQuery);
+  z = sqlite3_vmprintf(zQuery, ap);
+  va_end(ap); 
+  sqlite3_exec(p->db, z, dump_callback, p, &zErr);
+  sqlite3_free(z);
+  if( zErr ){
+    output_formatted(p, "/****** %s ******/\n", zErr);
+    sqlite3_free(zErr);
+    p->nErr++;
+    zErr = 0;
+  }
+}
+
+/*
+** Convert an SQLite database into SQL statements that will recreate that
+** database.
+*/
+int sqlite3_db_dump(
+  sqlite3 *db,               /* The database connection */
+  const char *zSchema,       /* Which schema to dump.  Usually "main". */
+  const char *zTable,        /* Which table to dump.  NULL means everything. */
+  int (*xCallback)(const char*,void*),   /* Output sent to this callback */
+  void *pArg                             /* Second argument of the callback */
+){
+  DState x;
+  memset(&x, 0, sizeof(x));
+  x.rc = sqlite3_exec(db, "BEGIN", 0, 0, 0);
+  if( x.rc ) return x.rc;
+  x.db = db;
+  x.xCallback = xCallback;
+  x.pArg = pArg;
+  xCallback("PRAGMA foreign_keys=OFF;\nBEGIN TRANSACTION;\n", pArg);
+  if( zTable==0 ){
+    run_schema_dump_query(&x,
+      "SELECT name, type, sql FROM \"%w\".sqlite_schema "
+      "WHERE sql NOT NULL AND type=='table' AND name!='sqlite_sequence'",
+      zSchema
+    );
+    run_schema_dump_query(&x,
+      "SELECT name, type, sql FROM \"%w\".sqlite_schema "
+      "WHERE name=='sqlite_sequence'", zSchema
+    );
+    output_sql_from_query(&x,
+      "SELECT sql FROM sqlite_schema "
+      "WHERE sql NOT NULL AND type IN ('index','trigger','view')", 0
+    );
+  }else{
+    run_schema_dump_query(&x,
+      "SELECT name, type, sql FROM \"%w\".sqlite_schema "
+      "WHERE tbl_name=%Q COLLATE nocase AND type=='table'"
+      "  AND sql NOT NULL",
+      zSchema, zTable
+    );
+    output_sql_from_query(&x,
+      "SELECT sql FROM \"%w\".sqlite_schema "
+      "WHERE sql NOT NULL"
+      "  AND type IN ('index','trigger','view')"
+      "  AND tbl_name=%Q COLLATE nocase",
+      zSchema, zTable
+    ); 
+  }
+  if( x.writableSchema ){
+    xCallback("PRAGMA writable_schema=OFF;\n", pArg);
+  }
+  xCallback(x.nErr ? "ROLLBACK; -- due to errors\n" : "COMMIT;\n", pArg);
+  sqlite3_exec(db, "COMMIT", 0, 0, 0);
+  return x.rc;
+}
+
+
+
+/* The generic subroutine is above.  The code the follows implements
+** the command-line interface.
+*/
+#ifdef DBDUMP_STANDALONE
+#include <stdio.h>
+
+/*
+** Command-line interface
+*/
+int main(int argc, char **argv){
+  sqlite3 *db;
+  const char *zDb;
+  const char *zSchema;
+  const char *zTable = 0;
+  int rc;
+
+  if( argc<2 || argc>4 ){
+    fprintf(stderr, "Usage: %s DATABASE ?SCHEMA? ?TABLE?\n", argv[0]);
+    return 1;
+  }
+  zDb = argv[1];
+  zSchema = argc>=3 ? argv[2] : "main";
+  zTable = argc==4 ? argv[3] : 0;
+
+  rc = sqlite3_open(zDb, &db);
+  if( rc ){
+    fprintf(stderr, "Cannot open \"%s\": %s\n", zDb, sqlite3_errmsg(db));
+    sqlite3_close(db);
+    return 1;
+  }
+  rc = sqlite3_db_dump(db, zSchema, zTable, 
+          (int(*)(const char*,void*))fputs, (void*)stdout);
+  if( rc ){
+    fprintf(stderr, "Error: sqlite3_db_dump() returns %d\n", rc);
+  }
+  sqlite3_close(db);
+  return rc!=SQLITE_OK;  
+}
+#endif /* DBDUMP_STANDALONE */
diff --git a/ext/misc/decimal.c b/ext/misc/decimal.c
new file mode 100644
index 0000000000000000000000000000000000000000..9365ae68b9f3aaa15752429056829ff2487cbe77
--- /dev/null
+++ b/ext/misc/decimal.c
@@ -0,0 +1,884 @@
+/*
+** 2020-06-22
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** Routines to implement arbitrary-precision decimal math.
+**
+** The focus here is on simplicity and correctness, not performance.
+*/
+#include "sqlite3ext.h"
+SQLITE_EXTENSION_INIT1
+#include <assert.h>
+#include <string.h>
+#include <ctype.h>
+#include <stdlib.h>
+
+/* Mark a function parameter as unused, to suppress nuisance compiler
+** warnings. */
+#ifndef UNUSED_PARAMETER
+# define UNUSED_PARAMETER(X)  (void)(X)
+#endif
+
+
+/* A decimal object */
+typedef struct Decimal Decimal;
+struct Decimal {
+  char sign;        /* 0 for positive, 1 for negative */
+  char oom;         /* True if an OOM is encountered */
+  char isNull;      /* True if holds a NULL rather than a number */
+  char isInit;      /* True upon initialization */
+  int nDigit;       /* Total number of digits */
+  int nFrac;        /* Number of digits to the right of the decimal point */
+  signed char *a;   /* Array of digits.  Most significant first. */
+};
+
+/*
+** Release memory held by a Decimal, but do not free the object itself.
+*/
+static void decimal_clear(Decimal *p){
+  sqlite3_free(p->a);
+}
+
+/*
+** Destroy a Decimal object
+*/
+static void decimal_free(Decimal *p){
+  if( p ){
+    decimal_clear(p);
+    sqlite3_free(p);
+  }
+}
+
+/*
+** Allocate a new Decimal object initialized to the text in zIn[].
+** Return NULL if any kind of error occurs.
+*/
+static Decimal *decimalNewFromText(const char *zIn, int n){
+  Decimal *p = 0;
+  int i;
+  int iExp = 0;
+
+  p = sqlite3_malloc( sizeof(*p) );
+  if( p==0 ) goto new_from_text_failed;
+  p->sign = 0;
+  p->oom = 0;
+  p->isInit = 1;
+  p->isNull = 0;
+  p->nDigit = 0;
+  p->nFrac = 0;
+  p->a = sqlite3_malloc64( n+1 );
+  if( p->a==0 ) goto new_from_text_failed;
+  for(i=0; isspace(zIn[i]); i++){}
+  if( zIn[i]=='-' ){
+    p->sign = 1;
+    i++;
+  }else if( zIn[i]=='+' ){
+    i++;
+  }
+  while( i<n && zIn[i]=='0' ) i++;
+  while( i<n ){
+    char c = zIn[i];
+    if( c>='0' && c<='9' ){
+      p->a[p->nDigit++] = c - '0';
+    }else if( c=='.' ){
+      p->nFrac = p->nDigit + 1;
+    }else if( c=='e' || c=='E' ){
+      int j = i+1;
+      int neg = 0;
+      if( j>=n ) break;
+      if( zIn[j]=='-' ){
+        neg = 1;
+        j++;
+      }else if( zIn[j]=='+' ){
+        j++;
+      }
+      while( j<n && iExp<1000000 ){
+        if( zIn[j]>='0' && zIn[j]<='9' ){
+          iExp = iExp*10 + zIn[j] - '0';
+        }
+        j++;
+      }
+      if( neg ) iExp = -iExp;
+      break;
+    }
+    i++;
+  }
+  if( p->nFrac ){
+    p->nFrac = p->nDigit - (p->nFrac - 1);
+  }
+  if( iExp>0 ){
+    if( p->nFrac>0 ){
+      if( iExp<=p->nFrac ){
+        p->nFrac -= iExp;
+        iExp = 0;
+      }else{
+        iExp -= p->nFrac;
+        p->nFrac = 0;
+      }
+    }
+    if( iExp>0 ){   
+      p->a = sqlite3_realloc64(p->a, p->nDigit + iExp + 1 );
+      if( p->a==0 ) goto new_from_text_failed;
+      memset(p->a+p->nDigit, 0, iExp);
+      p->nDigit += iExp;
+    }
+  }else if( iExp<0 ){
+    int nExtra;
+    iExp = -iExp;
+    nExtra = p->nDigit - p->nFrac - 1;
+    if( nExtra ){
+      if( nExtra>=iExp ){
+        p->nFrac += iExp;
+        iExp  = 0;
+      }else{
+        iExp -= nExtra;
+        p->nFrac = p->nDigit - 1;
+      }
+    }
+    if( iExp>0 ){
+      p->a = sqlite3_realloc64(p->a, p->nDigit + iExp + 1 );
+      if( p->a==0 ) goto new_from_text_failed;
+      memmove(p->a+iExp, p->a, p->nDigit);
+      memset(p->a, 0, iExp);
+      p->nDigit += iExp;
+      p->nFrac += iExp;
+    }
+  }
+  return p;
+
+new_from_text_failed:
+  if( p ){
+    if( p->a ) sqlite3_free(p->a);
+    sqlite3_free(p);
+  }
+  return 0;
+}
+
+/* Forward reference */
+static Decimal *decimalFromDouble(double);
+
+/*
+** Allocate a new Decimal object from an sqlite3_value.  Return a pointer
+** to the new object, or NULL if there is an error.  If the pCtx argument
+** is not NULL, then errors are reported on it as well.
+**
+** If the pIn argument is SQLITE_TEXT or SQLITE_INTEGER, it is converted
+** directly into a Decimal.  For SQLITE_FLOAT or for SQLITE_BLOB of length
+** 8 bytes, the resulting double value is expanded into its decimal equivalent.
+** If pIn is NULL or if it is a BLOB that is not exactly 8 bytes in length,
+** then NULL is returned.
+*/
+static Decimal *decimal_new(
+  sqlite3_context *pCtx,       /* Report error here, if not null */
+  sqlite3_value *pIn,          /* Construct the decimal object from this */
+  int bTextOnly                /* Always interpret pIn as text if true */
+){
+  Decimal *p = 0;
+  int eType = sqlite3_value_type(pIn);
+  if( bTextOnly && (eType==SQLITE_FLOAT || eType==SQLITE_BLOB) ){
+    eType = SQLITE_TEXT;
+  }
+  switch( eType ){
+    case SQLITE_TEXT:
+    case SQLITE_INTEGER: {
+      const char *zIn = (const char*)sqlite3_value_text(pIn);
+      int n = sqlite3_value_bytes(pIn);
+      p = decimalNewFromText(zIn, n);
+      if( p==0 ) goto new_failed;
+      break;
+    }
+
+    case SQLITE_FLOAT: {
+      p = decimalFromDouble(sqlite3_value_double(pIn));
+      break;
+    }
+
+    case SQLITE_BLOB: {
+      const unsigned char *x;
+      unsigned int i;
+      sqlite3_uint64 v = 0;
+      double r;
+
+      if( sqlite3_value_bytes(pIn)!=sizeof(r) ) break;
+      x = sqlite3_value_blob(pIn);
+      for(i=0; i<sizeof(r); i++){
+        v = (v<<8) | x[i];
+      }
+      memcpy(&r, &v, sizeof(r));
+      p = decimalFromDouble(r);
+      break;
+    }
+
+    case SQLITE_NULL: {
+      break;
+    }
+  }
+  return p;
+
+new_failed:
+  if( pCtx ) sqlite3_result_error_nomem(pCtx);
+  sqlite3_free(p);
+  return 0;
+}
+
+/*
+** Make the given Decimal the result.
+*/
+static void decimal_result(sqlite3_context *pCtx, Decimal *p){
+  char *z;
+  int i, j;
+  int n;
+  if( p==0 || p->oom ){
+    sqlite3_result_error_nomem(pCtx);
+    return;
+  }
+  if( p->isNull ){
+    sqlite3_result_null(pCtx);
+    return;
+  }
+  z = sqlite3_malloc( p->nDigit+4 );
+  if( z==0 ){
+    sqlite3_result_error_nomem(pCtx);
+    return;
+  }
+  i = 0;
+  if( p->nDigit==0 || (p->nDigit==1 && p->a[0]==0) ){
+    p->sign = 0;
+  }
+  if( p->sign ){
+    z[0] = '-';
+    i = 1;
+  }
+  n = p->nDigit - p->nFrac;
+  if( n<=0 ){
+    z[i++] = '0';
+  }
+  j = 0;
+  while( n>1 && p->a[j]==0 ){
+    j++;
+    n--;
+  }
+  while( n>0  ){
+    z[i++] = p->a[j] + '0';
+    j++;
+    n--;
+  }
+  if( p->nFrac ){
+    z[i++] = '.';
+    do{
+      z[i++] = p->a[j] + '0';
+      j++;
+    }while( j<p->nDigit );
+  }
+  z[i] = 0;
+  sqlite3_result_text(pCtx, z, i, sqlite3_free);
+}
+
+/*
+** Make the given Decimal the result in an format similar to  '%+#e'.
+** In other words, show exponential notation with leading and trailing
+** zeros omitted.
+*/
+static void decimal_result_sci(sqlite3_context *pCtx, Decimal *p){
+  char *z;       /* The output buffer */
+  int i;         /* Loop counter */
+  int nZero;     /* Number of leading zeros */
+  int nDigit;    /* Number of digits not counting trailing zeros */
+  int nFrac;     /* Digits to the right of the decimal point */
+  int exp;       /* Exponent value */
+  signed char zero;     /* Zero value */
+  signed char *a;       /* Array of digits */
+
+  if( p==0 || p->oom ){
+    sqlite3_result_error_nomem(pCtx);
+    return;
+  }
+  if( p->isNull ){
+    sqlite3_result_null(pCtx);
+    return;
+  }
+  for(nDigit=p->nDigit; nDigit>0 && p->a[nDigit-1]==0; nDigit--){}
+  for(nZero=0; nZero<nDigit && p->a[nZero]==0; nZero++){}
+  nFrac = p->nFrac + (nDigit - p->nDigit);
+  nDigit -= nZero;
+  z = sqlite3_malloc( nDigit+20 );
+  if( z==0 ){
+    sqlite3_result_error_nomem(pCtx);
+    return;
+  }
+  if( nDigit==0 ){
+    zero = 0;
+    a = &zero;
+    nDigit = 1;
+    nFrac = 0;
+  }else{
+    a = &p->a[nZero];
+  }
+  if( p->sign && nDigit>0 ){
+    z[0] = '-';
+  }else{
+    z[0] = '+';
+  }
+  z[1] = a[0]+'0';
+  z[2] = '.';
+  if( nDigit==1 ){
+    z[3] = '0';
+    i = 4;
+  }else{
+    for(i=1; i<nDigit; i++){
+      z[2+i] = a[i]+'0';
+    }
+    i = nDigit+2;
+  }
+  exp = nDigit - nFrac - 1;
+  sqlite3_snprintf(nDigit+20-i, &z[i], "e%+03d", exp);
+  sqlite3_result_text(pCtx, z, -1, sqlite3_free);
+}
+
+/*
+** Compare to Decimal objects.  Return negative, 0, or positive if the
+** first object is less than, equal to, or greater than the second.
+**
+** Preconditions for this routine:
+**
+**    pA!=0
+**    pA->isNull==0
+**    pB!=0
+**    pB->isNull==0
+*/
+static int decimal_cmp(const Decimal *pA, const Decimal *pB){
+  int nASig, nBSig, rc, n;
+  if( pA->sign!=pB->sign ){
+    return pA->sign ? -1 : +1;
+  }
+  if( pA->sign ){
+    const Decimal *pTemp = pA;
+    pA = pB;
+    pB = pTemp;
+  }
+  nASig = pA->nDigit - pA->nFrac;
+  nBSig = pB->nDigit - pB->nFrac;
+  if( nASig!=nBSig ){
+    return nASig - nBSig;
+  }
+  n = pA->nDigit;
+  if( n>pB->nDigit ) n = pB->nDigit;
+  rc = memcmp(pA->a, pB->a, n);
+  if( rc==0 ){
+    rc = pA->nDigit - pB->nDigit;
+  }
+  return rc;
+}
+
+/*
+** SQL Function:   decimal_cmp(X, Y)
+**
+** Return negative, zero, or positive if X is less then, equal to, or
+** greater than Y.
+*/
+static void decimalCmpFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  Decimal *pA = 0, *pB = 0;
+  int rc;
+
+  UNUSED_PARAMETER(argc);
+  pA = decimal_new(context, argv[0], 1);
+  if( pA==0 || pA->isNull ) goto cmp_done;
+  pB = decimal_new(context, argv[1], 1);
+  if( pB==0 || pB->isNull ) goto cmp_done;
+  rc = decimal_cmp(pA, pB);
+  if( rc<0 ) rc = -1;
+  else if( rc>0 ) rc = +1;
+  sqlite3_result_int(context, rc);
+cmp_done:
+  decimal_free(pA);
+  decimal_free(pB);
+}
+
+/*
+** Expand the Decimal so that it has a least nDigit digits and nFrac
+** digits to the right of the decimal point.
+*/
+static void decimal_expand(Decimal *p, int nDigit, int nFrac){
+  int nAddSig;
+  int nAddFrac;
+  if( p==0 ) return;
+  nAddFrac = nFrac - p->nFrac;
+  nAddSig = (nDigit - p->nDigit) - nAddFrac;
+  if( nAddFrac==0 && nAddSig==0 ) return;
+  p->a = sqlite3_realloc64(p->a, nDigit+1);
+  if( p->a==0 ){
+    p->oom = 1;
+    return;
+  }
+  if( nAddSig ){
+    memmove(p->a+nAddSig, p->a, p->nDigit);
+    memset(p->a, 0, nAddSig);
+    p->nDigit += nAddSig;
+  }
+  if( nAddFrac ){
+    memset(p->a+p->nDigit, 0, nAddFrac);
+    p->nDigit += nAddFrac;
+    p->nFrac += nAddFrac;
+  }
+}
+
+/*
+** Add the value pB into pA.   A := A + B.
+**
+** Both pA and pB might become denormalized by this routine.
+*/
+static void decimal_add(Decimal *pA, Decimal *pB){
+  int nSig, nFrac, nDigit;
+  int i, rc;
+  if( pA==0 ){
+    return;
+  }
+  if( pA->oom || pB==0 || pB->oom ){
+    pA->oom = 1;
+    return;
+  }
+  if( pA->isNull || pB->isNull ){
+    pA->isNull = 1;
+    return;
+  }
+  nSig = pA->nDigit - pA->nFrac;
+  if( nSig && pA->a[0]==0 ) nSig--;
+  if( nSig<pB->nDigit-pB->nFrac ){
+    nSig = pB->nDigit - pB->nFrac;
+  }
+  nFrac = pA->nFrac;
+  if( nFrac<pB->nFrac ) nFrac = pB->nFrac;
+  nDigit = nSig + nFrac + 1;
+  decimal_expand(pA, nDigit, nFrac);
+  decimal_expand(pB, nDigit, nFrac);
+  if( pA->oom || pB->oom ){
+    pA->oom = 1;
+  }else{
+    if( pA->sign==pB->sign ){
+      int carry = 0;
+      for(i=nDigit-1; i>=0; i--){
+        int x = pA->a[i] + pB->a[i] + carry;
+        if( x>=10 ){
+          carry = 1;
+          pA->a[i] = x - 10;
+        }else{
+          carry = 0;
+          pA->a[i] = x;
+        }
+      }
+    }else{
+      signed char *aA, *aB;
+      int borrow = 0;
+      rc = memcmp(pA->a, pB->a, nDigit);
+      if( rc<0 ){
+        aA = pB->a;
+        aB = pA->a;
+        pA->sign = !pA->sign;
+      }else{
+        aA = pA->a;
+        aB = pB->a;
+      }
+      for(i=nDigit-1; i>=0; i--){
+        int x = aA[i] - aB[i] - borrow;
+        if( x<0 ){
+          pA->a[i] = x+10;
+          borrow = 1;
+        }else{
+          pA->a[i] = x;
+          borrow = 0;
+        }
+      }
+    }
+  }
+}
+
+/*
+** Multiply A by B.   A := A * B
+**
+** All significant digits after the decimal point are retained.
+** Trailing zeros after the decimal point are omitted as long as
+** the number of digits after the decimal point is no less than
+** either the number of digits in either input.
+*/
+static void decimalMul(Decimal *pA, Decimal *pB){
+  signed char *acc = 0;
+  int i, j, k;
+  int minFrac;
+
+  if( pA==0 || pA->oom || pA->isNull
+   || pB==0 || pB->oom || pB->isNull 
+  ){
+    goto mul_end;
+  }
+  acc = sqlite3_malloc64( pA->nDigit + pB->nDigit + 2 );
+  if( acc==0 ){
+    pA->oom = 1;
+    goto mul_end;
+  }
+  memset(acc, 0, pA->nDigit + pB->nDigit + 2);
+  minFrac = pA->nFrac;
+  if( pB->nFrac<minFrac ) minFrac = pB->nFrac;
+  for(i=pA->nDigit-1; i>=0; i--){
+    signed char f = pA->a[i];
+    int carry = 0, x;
+    for(j=pB->nDigit-1, k=i+j+3; j>=0; j--, k--){
+      x = acc[k] + f*pB->a[j] + carry;
+      acc[k] = x%10;
+      carry = x/10;
+    }
+    x = acc[k] + carry;
+    acc[k] = x%10;
+    acc[k-1] += x/10;
+  }
+  sqlite3_free(pA->a);
+  pA->a = acc;
+  acc = 0;
+  pA->nDigit += pB->nDigit + 2;
+  pA->nFrac += pB->nFrac;
+  pA->sign ^= pB->sign;
+  while( pA->nFrac>minFrac && pA->a[pA->nDigit-1]==0 ){
+    pA->nFrac--;
+    pA->nDigit--;
+  }
+
+mul_end:
+  sqlite3_free(acc);
+}
+
+/*
+** Create a new Decimal object that contains an integer power of 2.
+*/
+static Decimal *decimalPow2(int N){
+  Decimal *pA = 0;      /* The result to be returned */
+  Decimal *pX = 0;      /* Multiplier */
+  if( N<-20000 || N>20000 ) goto pow2_fault;
+  pA = decimalNewFromText("1.0", 3);
+  if( pA==0 || pA->oom ) goto pow2_fault;
+  if( N==0 ) return pA;
+  if( N>0 ){
+    pX = decimalNewFromText("2.0", 3);
+  }else{
+    N = -N;
+    pX = decimalNewFromText("0.5", 3);
+  }
+  if( pX==0 || pX->oom ) goto pow2_fault;
+  while( 1 /* Exit by break */ ){
+    if( N & 1 ){
+      decimalMul(pA, pX);
+      if( pA->oom ) goto pow2_fault;
+    }
+    N >>= 1;
+    if( N==0 ) break;
+    decimalMul(pX, pX);
+  }
+  decimal_free(pX);
+  return pA;
+
+pow2_fault:
+  decimal_free(pA);
+  decimal_free(pX);
+  return 0;
+}
+
+/*
+** Use an IEEE754 binary64 ("double") to generate a new Decimal object.
+*/
+static Decimal *decimalFromDouble(double r){
+  sqlite3_int64 m, a;
+  int e;
+  int isNeg;
+  Decimal *pA;
+  Decimal *pX;
+  char zNum[100];
+  if( r<0.0 ){
+    isNeg = 1;
+    r = -r;
+  }else{
+    isNeg = 0;
+  }
+  memcpy(&a,&r,sizeof(a));
+  if( a==0 ){
+    e = 0;
+    m = 0;
+  }else{
+    e = a>>52;
+    m = a & ((((sqlite3_int64)1)<<52)-1);
+    if( e==0 ){
+      m <<= 1;
+    }else{
+      m |= ((sqlite3_int64)1)<<52;
+    }
+    while( e<1075 && m>0 && (m&1)==0 ){
+      m >>= 1;
+      e++;
+    }
+    if( isNeg ) m = -m;
+    e = e - 1075;
+    if( e>971 ){
+      return 0;  /* A NaN or an Infinity */
+    }
+  }
+
+  /* At this point m is the integer significand and e is the exponent */
+  sqlite3_snprintf(sizeof(zNum), zNum, "%lld", m);
+  pA = decimalNewFromText(zNum, (int)strlen(zNum));
+  pX = decimalPow2(e);
+  decimalMul(pA, pX);
+  decimal_free(pX);
+  return pA;
+}
+
+/*
+** SQL Function:   decimal(X)
+** OR:             decimal_exp(X)
+**
+** Convert input X into decimal and then back into text.
+**
+** If X is originally a float, then a full decimal expansion of that floating
+** point value is done.  Or if X is an 8-byte blob, it is interpreted
+** as a float and similarly expanded.
+**
+** The decimal_exp(X) function returns the result in exponential notation.
+** decimal(X) returns a complete decimal, without the e+NNN at the end.
+*/
+static void decimalFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  Decimal *p =  decimal_new(context, argv[0], 0);
+  UNUSED_PARAMETER(argc);
+  if( p ){
+    if( sqlite3_user_data(context)!=0 ){
+      decimal_result_sci(context, p);
+    }else{
+      decimal_result(context, p);
+    }
+    decimal_free(p);
+  }
+}
+
+/*
+** Compare text in decimal order.
+*/
+static int decimalCollFunc(
+  void *notUsed,
+  int nKey1, const void *pKey1,
+  int nKey2, const void *pKey2
+){
+  const unsigned char *zA = (const unsigned char*)pKey1;
+  const unsigned char *zB = (const unsigned char*)pKey2;
+  Decimal *pA = decimalNewFromText((const char*)zA, nKey1);
+  Decimal *pB = decimalNewFromText((const char*)zB, nKey2);
+  int rc;
+  UNUSED_PARAMETER(notUsed);
+  if( pA==0 || pB==0 ){
+    rc = 0;
+  }else{
+    rc = decimal_cmp(pA, pB);
+  }
+  decimal_free(pA);
+  decimal_free(pB);
+  return rc;
+}
+
+
+/*
+** SQL Function:   decimal_add(X, Y)
+**                 decimal_sub(X, Y)
+**
+** Return the sum or difference of X and Y.
+*/
+static void decimalAddFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  Decimal *pA = decimal_new(context, argv[0], 1);
+  Decimal *pB = decimal_new(context, argv[1], 1);
+  UNUSED_PARAMETER(argc);
+  decimal_add(pA, pB);
+  decimal_result(context, pA);
+  decimal_free(pA);
+  decimal_free(pB);
+}
+static void decimalSubFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  Decimal *pA = decimal_new(context, argv[0], 1);
+  Decimal *pB = decimal_new(context, argv[1], 1);
+  UNUSED_PARAMETER(argc);
+  if( pB ){
+    pB->sign = !pB->sign;
+    decimal_add(pA, pB);
+    decimal_result(context, pA);
+  }
+  decimal_free(pA);
+  decimal_free(pB);
+}
+
+/* Aggregate funcion:   decimal_sum(X)
+**
+** Works like sum() except that it uses decimal arithmetic for unlimited
+** precision.
+*/
+static void decimalSumStep(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  Decimal *p;
+  Decimal *pArg;
+  UNUSED_PARAMETER(argc);
+  p = sqlite3_aggregate_context(context, sizeof(*p));
+  if( p==0 ) return;
+  if( !p->isInit ){
+    p->isInit = 1;
+    p->a = sqlite3_malloc(2);
+    if( p->a==0 ){
+      p->oom = 1;
+    }else{
+      p->a[0] = 0;
+    }
+    p->nDigit = 1;
+    p->nFrac = 0;
+  }
+  if( sqlite3_value_type(argv[0])==SQLITE_NULL ) return;
+  pArg = decimal_new(context, argv[0], 1);
+  decimal_add(p, pArg);
+  decimal_free(pArg);
+}
+static void decimalSumInverse(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  Decimal *p;
+  Decimal *pArg;
+  UNUSED_PARAMETER(argc);
+  p = sqlite3_aggregate_context(context, sizeof(*p));
+  if( p==0 ) return;
+  if( sqlite3_value_type(argv[0])==SQLITE_NULL ) return;
+  pArg = decimal_new(context, argv[0], 1);
+  if( pArg ) pArg->sign = !pArg->sign;
+  decimal_add(p, pArg);
+  decimal_free(pArg);
+}
+static void decimalSumValue(sqlite3_context *context){
+  Decimal *p = sqlite3_aggregate_context(context, 0);
+  if( p==0 ) return;
+  decimal_result(context, p);
+}
+static void decimalSumFinalize(sqlite3_context *context){
+  Decimal *p = sqlite3_aggregate_context(context, 0);
+  if( p==0 ) return;
+  decimal_result(context, p);
+  decimal_clear(p);
+}
+
+/*
+** SQL Function:   decimal_mul(X, Y)
+**
+** Return the product of X and Y.
+*/
+static void decimalMulFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  Decimal *pA = decimal_new(context, argv[0], 1);
+  Decimal *pB = decimal_new(context, argv[1], 1);
+  UNUSED_PARAMETER(argc);
+  if( pA==0 || pA->oom || pA->isNull
+   || pB==0 || pB->oom || pB->isNull 
+  ){
+    goto mul_end;
+  }
+  decimalMul(pA, pB);
+  if( pA->oom ){
+    goto mul_end;
+  }
+  decimal_result(context, pA);
+
+mul_end:
+  decimal_free(pA);
+  decimal_free(pB);
+}
+
+/*
+** SQL Function:   decimal_pow2(N)
+**
+** Return the N-th power of 2.  N must be an integer.
+*/
+static void decimalPow2Func(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  UNUSED_PARAMETER(argc);
+  if( sqlite3_value_type(argv[0])==SQLITE_INTEGER ){
+    Decimal *pA = decimalPow2(sqlite3_value_int(argv[0]));
+    decimal_result_sci(context, pA);
+    decimal_free(pA);
+  }
+}
+
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_decimal_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  int rc = SQLITE_OK;
+  static const struct {
+    const char *zFuncName;
+    int nArg;
+    int iArg;
+    void (*xFunc)(sqlite3_context*,int,sqlite3_value**);
+  } aFunc[] = {
+    { "decimal",       1, 0,  decimalFunc        },
+    { "decimal_exp",   1, 1,  decimalFunc        },
+    { "decimal_cmp",   2, 0,  decimalCmpFunc     },
+    { "decimal_add",   2, 0,  decimalAddFunc     },
+    { "decimal_sub",   2, 0,  decimalSubFunc     },
+    { "decimal_mul",   2, 0,  decimalMulFunc     },
+    { "decimal_pow2",  1, 0,  decimalPow2Func    },
+  };
+  unsigned int i;
+  (void)pzErrMsg;  /* Unused parameter */
+
+  SQLITE_EXTENSION_INIT2(pApi);
+
+  for(i=0; i<(int)(sizeof(aFunc)/sizeof(aFunc[0])) && rc==SQLITE_OK; i++){
+    rc = sqlite3_create_function(db, aFunc[i].zFuncName, aFunc[i].nArg,
+                   SQLITE_UTF8|SQLITE_INNOCUOUS|SQLITE_DETERMINISTIC,
+                   aFunc[i].iArg ? db : 0, aFunc[i].xFunc, 0, 0);
+  }
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_window_function(db, "decimal_sum", 1,
+                   SQLITE_UTF8|SQLITE_INNOCUOUS|SQLITE_DETERMINISTIC, 0,
+                   decimalSumStep, decimalSumFinalize,
+                   decimalSumValue, decimalSumInverse, 0);
+  }
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_collation(db, "decimal", SQLITE_UTF8,
+                                  0, decimalCollFunc);
+  }
+  return rc;
+}
diff --git a/ext/misc/eval.c b/ext/misc/eval.c
new file mode 100644
index 0000000000000000000000000000000000000000..d3849d65871b1fbc15dfca1cba1bfdd63ed14238
--- /dev/null
+++ b/ext/misc/eval.c
@@ -0,0 +1,125 @@
+/*
+** 2014-11-10
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This SQLite extension implements SQL function eval() which runs
+** SQL statements recursively.
+*/
+#include "sqlite3ext.h"
+SQLITE_EXTENSION_INIT1
+#include <string.h>
+
+/*
+** Structure used to accumulate the output
+*/
+struct EvalResult {
+  char *z;               /* Accumulated output */
+  const char *zSep;      /* Separator */
+  int szSep;             /* Size of the separator string */
+  sqlite3_int64 nAlloc;  /* Number of bytes allocated for z[] */
+  sqlite3_int64 nUsed;   /* Number of bytes of z[] actually used */
+};
+
+/*
+** Callback from sqlite_exec() for the eval() function.
+*/
+static int callback(void *pCtx, int argc, char **argv, char **colnames){
+  struct EvalResult *p = (struct EvalResult*)pCtx;
+  int i; 
+  if( argv==0 ) return 0;
+  for(i=0; i<argc; i++){
+    const char *z = argv[i] ? argv[i] : "";
+    size_t sz = strlen(z);
+    if( (sqlite3_int64)sz+p->nUsed+p->szSep+1 > p->nAlloc ){
+      char *zNew;
+      p->nAlloc = p->nAlloc*2 + sz + p->szSep + 1;
+      /* Using sqlite3_realloc64() would be better, but it is a recent
+      ** addition and will cause a segfault if loaded by an older version
+      ** of SQLite.  */
+      zNew = p->nAlloc<=0x7fffffff ? sqlite3_realloc64(p->z, p->nAlloc) : 0;
+      if( zNew==0 ){
+        sqlite3_free(p->z);
+        memset(p, 0, sizeof(*p));
+        return 1;
+      }
+      p->z = zNew;
+    }
+    if( p->nUsed>0 ){
+      memcpy(&p->z[p->nUsed], p->zSep, p->szSep);
+      p->nUsed += p->szSep;
+    }
+    memcpy(&p->z[p->nUsed], z, sz);
+    p->nUsed += sz;
+  }
+  return 0;
+}
+
+/*
+** Implementation of the eval(X) and eval(X,Y) SQL functions.
+**
+** Evaluate the SQL text in X.  Return the results, using string
+** Y as the separator.  If Y is omitted, use a single space character.
+*/
+static void sqlEvalFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  const char *zSql;
+  sqlite3 *db;
+  char *zErr = 0;
+  int rc;
+  struct EvalResult x;
+
+  memset(&x, 0, sizeof(x));
+  x.zSep = " ";
+  zSql = (const char*)sqlite3_value_text(argv[0]);
+  if( zSql==0 ) return;
+  if( argc>1 ){
+    x.zSep = (const char*)sqlite3_value_text(argv[1]);
+    if( x.zSep==0 ) return;
+  }
+  x.szSep = (int)strlen(x.zSep);
+  db = sqlite3_context_db_handle(context);
+  rc = sqlite3_exec(db, zSql, callback, &x, &zErr);
+  if( rc!=SQLITE_OK ){
+    sqlite3_result_error(context, zErr, -1);
+    sqlite3_free(zErr);
+  }else if( x.zSep==0 ){
+    sqlite3_result_error_nomem(context);
+    sqlite3_free(x.z);
+  }else{
+    sqlite3_result_text(context, x.z, (int)x.nUsed, sqlite3_free);
+  }
+}
+
+
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_eval_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  int rc = SQLITE_OK;
+  SQLITE_EXTENSION_INIT2(pApi);
+  (void)pzErrMsg;  /* Unused parameter */
+  rc = sqlite3_create_function(db, "eval", 1, 
+                               SQLITE_UTF8|SQLITE_DIRECTONLY, 0,
+                               sqlEvalFunc, 0, 0);
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_function(db, "eval", 2,
+                                 SQLITE_UTF8|SQLITE_DIRECTONLY, 0,
+                                 sqlEvalFunc, 0, 0);
+  }
+  return rc;
+}
diff --git a/ext/misc/explain.c b/ext/misc/explain.c
new file mode 100644
index 0000000000000000000000000000000000000000..726af76b9660707ebbae9b1b5b1f33c603d9c05c
--- /dev/null
+++ b/ext/misc/explain.c
@@ -0,0 +1,323 @@
+/*
+** 2018-09-16
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** This file demonstrates an eponymous virtual table that returns the
+** EXPLAIN output from an SQL statement.
+**
+** Usage example:
+**
+**     .load ./explain
+**     SELECT p2 FROM explain('SELECT * FROM sqlite_schema')
+**      WHERE opcode='OpenRead';
+**
+** This module was originally written to help simplify SQLite testing,
+** by providing an easier means of verifying certain patterns in the
+** generated bytecode.
+*/
+#if !defined(SQLITEINT_H)
+#include "sqlite3ext.h"
+#endif
+SQLITE_EXTENSION_INIT1
+#include <assert.h>
+#include <string.h>
+
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+
+/* explain_vtab is a subclass of sqlite3_vtab which will
+** serve as the underlying representation of a explain virtual table
+*/
+typedef struct explain_vtab explain_vtab;
+struct explain_vtab {
+  sqlite3_vtab base;  /* Base class - must be first */
+  sqlite3 *db;        /* Database connection for this explain vtab */
+};
+
+/* explain_cursor is a subclass of sqlite3_vtab_cursor which will
+** serve as the underlying representation of a cursor that scans
+** over rows of the result from an EXPLAIN operation.
+*/
+typedef struct explain_cursor explain_cursor;
+struct explain_cursor {
+  sqlite3_vtab_cursor base;  /* Base class - must be first */
+  sqlite3 *db;               /* Database connection for this cursor */
+  char *zSql;                /* Value for the EXPLN_COLUMN_SQL column */
+  sqlite3_stmt *pExplain;    /* Statement being explained */
+  int rc;                    /* Result of last sqlite3_step() on pExplain */
+};
+
+/*
+** The explainConnect() method is invoked to create a new
+** explain_vtab that describes the explain virtual table.
+**
+** Think of this routine as the constructor for explain_vtab objects.
+**
+** All this routine needs to do is:
+**
+**    (1) Allocate the explain_vtab object and initialize all fields.
+**
+**    (2) Tell SQLite (via the sqlite3_declare_vtab() interface) what the
+**        result set of queries against explain will look like.
+*/
+static int explainConnect(
+  sqlite3 *db,
+  void *pAux,
+  int argc, const char *const*argv,
+  sqlite3_vtab **ppVtab,
+  char **pzErr
+){
+  explain_vtab *pNew;
+  int rc;
+
+/* Column numbers */
+#define EXPLN_COLUMN_ADDR     0   /* Instruction address */
+#define EXPLN_COLUMN_OPCODE   1   /* Opcode */
+#define EXPLN_COLUMN_P1       2   /* Operand 1 */
+#define EXPLN_COLUMN_P2       3   /* Operand 2 */
+#define EXPLN_COLUMN_P3       4   /* Operand 3 */
+#define EXPLN_COLUMN_P4       5   /* Operand 4 */
+#define EXPLN_COLUMN_P5       6   /* Operand 5 */
+#define EXPLN_COLUMN_COMMENT  7   /* Comment */
+#define EXPLN_COLUMN_SQL      8   /* SQL that is being explained */
+
+
+  rc = sqlite3_declare_vtab(db,
+     "CREATE TABLE x(addr,opcode,p1,p2,p3,p4,p5,comment,sql HIDDEN)");
+  if( rc==SQLITE_OK ){
+    pNew = sqlite3_malloc( sizeof(*pNew) );
+    *ppVtab = (sqlite3_vtab*)pNew;
+    if( pNew==0 ) return SQLITE_NOMEM;
+    memset(pNew, 0, sizeof(*pNew));
+    pNew->db = db;
+  }
+  return rc;
+}
+
+/*
+** This method is the destructor for explain_cursor objects.
+*/
+static int explainDisconnect(sqlite3_vtab *pVtab){
+  sqlite3_free(pVtab);
+  return SQLITE_OK;
+}
+
+/*
+** Constructor for a new explain_cursor object.
+*/
+static int explainOpen(sqlite3_vtab *p, sqlite3_vtab_cursor **ppCursor){
+  explain_cursor *pCur;
+  pCur = sqlite3_malloc( sizeof(*pCur) );
+  if( pCur==0 ) return SQLITE_NOMEM;
+  memset(pCur, 0, sizeof(*pCur));
+  pCur->db = ((explain_vtab*)p)->db;
+  *ppCursor = &pCur->base;
+  return SQLITE_OK;
+}
+
+/*
+** Destructor for a explain_cursor.
+*/
+static int explainClose(sqlite3_vtab_cursor *cur){
+  explain_cursor *pCur = (explain_cursor*)cur;
+  sqlite3_finalize(pCur->pExplain);
+  sqlite3_free(pCur->zSql);
+  sqlite3_free(pCur);
+  return SQLITE_OK;
+}
+
+
+/*
+** Advance a explain_cursor to its next row of output.
+*/
+static int explainNext(sqlite3_vtab_cursor *cur){
+  explain_cursor *pCur = (explain_cursor*)cur;
+  pCur->rc = sqlite3_step(pCur->pExplain);
+  if( pCur->rc!=SQLITE_DONE && pCur->rc!=SQLITE_ROW ) return pCur->rc;
+  return SQLITE_OK;
+}
+
+/*
+** Return values of columns for the row at which the explain_cursor
+** is currently pointing.
+*/
+static int explainColumn(
+  sqlite3_vtab_cursor *cur,   /* The cursor */
+  sqlite3_context *ctx,       /* First argument to sqlite3_result_...() */
+  int i                       /* Which column to return */
+){
+  explain_cursor *pCur = (explain_cursor*)cur;
+  if( i==EXPLN_COLUMN_SQL ){
+    sqlite3_result_text(ctx, pCur->zSql, -1, SQLITE_TRANSIENT);
+  }else{
+    sqlite3_result_value(ctx, sqlite3_column_value(pCur->pExplain, i));
+  }
+  return SQLITE_OK;
+}
+
+/*
+** Return the rowid for the current row.  In this implementation, the
+** rowid is the same as the output value.
+*/
+static int explainRowid(sqlite3_vtab_cursor *cur, sqlite_int64 *pRowid){
+  explain_cursor *pCur = (explain_cursor*)cur;
+  *pRowid = sqlite3_column_int64(pCur->pExplain, 0);
+  return SQLITE_OK;
+}
+
+/*
+** Return TRUE if the cursor has been moved off of the last
+** row of output.
+*/
+static int explainEof(sqlite3_vtab_cursor *cur){
+  explain_cursor *pCur = (explain_cursor*)cur;
+  return pCur->rc!=SQLITE_ROW;
+}
+
+/*
+** This method is called to "rewind" the explain_cursor object back
+** to the first row of output.  This method is always called at least
+** once prior to any call to explainColumn() or explainRowid() or 
+** explainEof().
+**
+** The argv[0] is the SQL statement that is to be explained.
+*/
+static int explainFilter(
+  sqlite3_vtab_cursor *pVtabCursor, 
+  int idxNum, const char *idxStr,
+  int argc, sqlite3_value **argv
+){
+  explain_cursor *pCur = (explain_cursor *)pVtabCursor;
+  char *zSql = 0;
+  int rc;
+  sqlite3_finalize(pCur->pExplain);
+  pCur->pExplain = 0;
+  if( sqlite3_value_type(argv[0])!=SQLITE_TEXT ){
+    pCur->rc = SQLITE_DONE;
+    return SQLITE_OK;
+  }
+  sqlite3_free(pCur->zSql);
+  pCur->zSql = sqlite3_mprintf("%s", sqlite3_value_text(argv[0]));
+  if( pCur->zSql ){
+    zSql = sqlite3_mprintf("EXPLAIN %s", pCur->zSql);
+  }
+  if( zSql==0 ){
+    rc = SQLITE_NOMEM;
+  }else{
+    rc = sqlite3_prepare_v2(pCur->db, zSql, -1, &pCur->pExplain, 0);
+    sqlite3_free(zSql);
+  }
+  if( rc ){
+    sqlite3_finalize(pCur->pExplain);
+    pCur->pExplain = 0;
+    sqlite3_free(pCur->zSql);
+    pCur->zSql = 0;
+  }else{
+    pCur->rc = sqlite3_step(pCur->pExplain);
+    rc = (pCur->rc==SQLITE_DONE || pCur->rc==SQLITE_ROW) ? SQLITE_OK : pCur->rc;
+  }
+  return rc;
+}
+
+/*
+** SQLite will invoke this method one or more times while planning a query
+** that uses the explain virtual table.  This routine needs to create
+** a query plan for each invocation and compute an estimated cost for that
+** plan.
+*/
+static int explainBestIndex(
+  sqlite3_vtab *tab,
+  sqlite3_index_info *pIdxInfo
+){
+  int i;                  /* Loop counter */
+  int idx = -1;           /* Index of a usable == constraint against SQL */
+  int unusable = 0;       /* True if there are unusable constraints on SQL */
+
+  pIdxInfo->estimatedRows = 500;
+  for(i=0; i<pIdxInfo->nConstraint; i++){
+    struct sqlite3_index_constraint *p = &pIdxInfo->aConstraint[i];
+    if( p->iColumn!=EXPLN_COLUMN_SQL ) continue;
+    if( !p->usable ){
+      unusable = 1;
+    }else if( p->op==SQLITE_INDEX_CONSTRAINT_EQ ){
+      idx = i;
+    }
+  }
+  if( idx>=0 ){
+    /* There exists a usable == constraint against the SQL column */
+    pIdxInfo->estimatedCost = 10.0;
+    pIdxInfo->idxNum = 1;
+    pIdxInfo->aConstraintUsage[idx].argvIndex = 1;
+    pIdxInfo->aConstraintUsage[idx].omit = 1;
+  }else if( unusable ){
+    /* There are unusable constraints against the SQL column.  Do not allow
+    ** this plan to continue forward. */
+    return SQLITE_CONSTRAINT;
+  }
+  return SQLITE_OK;
+}
+
+/*
+** This following structure defines all the methods for the 
+** explain virtual table.
+*/
+static sqlite3_module explainModule = {
+  0,                         /* iVersion */
+  0,                         /* xCreate */
+  explainConnect,            /* xConnect */
+  explainBestIndex,          /* xBestIndex */
+  explainDisconnect,         /* xDisconnect */
+  0,                         /* xDestroy */
+  explainOpen,               /* xOpen - open a cursor */
+  explainClose,              /* xClose - close a cursor */
+  explainFilter,             /* xFilter - configure scan constraints */
+  explainNext,               /* xNext - advance a cursor */
+  explainEof,                /* xEof - check for end of scan */
+  explainColumn,             /* xColumn - read data */
+  explainRowid,              /* xRowid - read data */
+  0,                         /* xUpdate */
+  0,                         /* xBegin */
+  0,                         /* xSync */
+  0,                         /* xCommit */
+  0,                         /* xRollback */
+  0,                         /* xFindMethod */
+  0,                         /* xRename */
+  0,                         /* xSavepoint */
+  0,                         /* xRelease */
+  0,                         /* xRollbackTo */
+  0,                         /* xShadowName */
+  0                          /* xIntegrity */
+};
+
+#endif /* SQLITE_OMIT_VIRTUALTABLE */
+
+int sqlite3ExplainVtabInit(sqlite3 *db){
+  int rc = SQLITE_OK;
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+  rc = sqlite3_create_module(db, "explain", &explainModule, 0);
+#endif
+  return rc;
+}
+
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_explain_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  int rc = SQLITE_OK;
+  SQLITE_EXTENSION_INIT2(pApi);
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+  rc = sqlite3ExplainVtabInit(db);
+#endif
+  return rc;
+}
diff --git a/ext/misc/fileio.c b/ext/misc/fileio.c
new file mode 100644
index 0000000000000000000000000000000000000000..483ef0187f9d59d54b9b0c78af4c1eadc9a39a6d
--- /dev/null
+++ b/ext/misc/fileio.c
@@ -0,0 +1,1046 @@
+/*
+** 2014-06-13
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This SQLite extension implements SQL functions readfile() and
+** writefile(), and eponymous virtual type "fsdir".
+**
+** WRITEFILE(FILE, DATA [, MODE [, MTIME]]):
+**
+**   If neither of the optional arguments is present, then this UDF
+**   function writes blob DATA to file FILE. If successful, the number
+**   of bytes written is returned. If an error occurs, NULL is returned.
+**
+**   If the first option argument - MODE - is present, then it must
+**   be passed an integer value that corresponds to a POSIX mode
+**   value (file type + permissions, as returned in the stat.st_mode
+**   field by the stat() system call). Three types of files may
+**   be written/created:
+**
+**     regular files:  (mode & 0170000)==0100000
+**     symbolic links: (mode & 0170000)==0120000
+**     directories:    (mode & 0170000)==0040000
+**
+**   For a directory, the DATA is ignored. For a symbolic link, it is
+**   interpreted as text and used as the target of the link. For a
+**   regular file, it is interpreted as a blob and written into the
+**   named file. Regardless of the type of file, its permissions are
+**   set to (mode & 0777) before returning.
+**
+**   If the optional MTIME argument is present, then it is interpreted
+**   as an integer - the number of seconds since the unix epoch. The
+**   modification-time of the target file is set to this value before
+**   returning.
+**
+**   If five or more arguments are passed to this function and an
+**   error is encountered, an exception is raised.
+**
+** READFILE(FILE):
+**
+**   Read and return the contents of file FILE (type blob) from disk.
+**
+** FSDIR:
+**
+**   Used as follows:
+**
+**     SELECT * FROM fsdir($path [, $dir]);
+**
+**   Parameter $path is an absolute or relative pathname. If the file that it
+**   refers to does not exist, it is an error. If the path refers to a regular
+**   file or symbolic link, it returns a single row. Or, if the path refers
+**   to a directory, it returns one row for the directory, and one row for each
+**   file within the hierarchy rooted at $path.
+**
+**   Each row has the following columns:
+**
+**     name:  Path to file or directory (text value).
+**     mode:  Value of stat.st_mode for directory entry (an integer).
+**     mtime: Value of stat.st_mtime for directory entry (an integer).
+**     data:  For a regular file, a blob containing the file data. For a
+**            symlink, a text value containing the text of the link. For a
+**            directory, NULL.
+**
+**   If a non-NULL value is specified for the optional $dir parameter and
+**   $path is a relative path, then $path is interpreted relative to $dir. 
+**   And the paths returned in the "name" column of the table are also 
+**   relative to directory $dir.
+**
+** Notes on building this extension for Windows:
+**   Unless linked statically with the SQLite library, a preprocessor
+**   symbol, FILEIO_WIN32_DLL, must be #define'd to create a stand-alone
+**   DLL form of this extension for WIN32. See its use below for details.
+*/
+#include "sqlite3ext.h"
+SQLITE_EXTENSION_INIT1
+#include <stdio.h>
+#include <string.h>
+#include <assert.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#if !defined(_WIN32) && !defined(WIN32)
+#  include <unistd.h>
+#  include <dirent.h>
+#  include <utime.h>
+#  include <sys/time.h>
+#else
+#  include "windows.h"
+#  include <io.h>
+#  include <direct.h>
+#  include "test_windirent.h"
+#  define dirent DIRENT
+#  ifndef chmod
+#    define chmod _chmod
+#  endif
+#  ifndef stat
+#    define stat _stat
+#  endif
+#  define mkdir(path,mode) _mkdir(path)
+#  define lstat(path,buf) stat(path,buf)
+#endif
+#include <time.h>
+#include <errno.h>
+
+/* When used as part of the CLI, the sqlite3_stdio.h module will have
+** been included before this one. In that case use the sqlite3_stdio.h
+** #defines.  If not, create our own for fopen().
+*/
+#ifndef _SQLITE3_STDIO_H_
+# define sqlite3_fopen fopen
+#endif
+
+/*
+** Structure of the fsdir() table-valued function
+*/
+                 /*    0    1    2     3    4           5             */
+#define FSDIR_SCHEMA "(name,mode,mtime,data,path HIDDEN,dir HIDDEN)"
+#define FSDIR_COLUMN_NAME     0     /* Name of the file */
+#define FSDIR_COLUMN_MODE     1     /* Access mode */
+#define FSDIR_COLUMN_MTIME    2     /* Last modification time */
+#define FSDIR_COLUMN_DATA     3     /* File content */
+#define FSDIR_COLUMN_PATH     4     /* Path to top of search */
+#define FSDIR_COLUMN_DIR      5     /* Path is relative to this directory */
+
+
+/*
+** Set the result stored by context ctx to a blob containing the 
+** contents of file zName.  Or, leave the result unchanged (NULL)
+** if the file does not exist or is unreadable.
+**
+** If the file exceeds the SQLite blob size limit, through an
+** SQLITE_TOOBIG error.
+**
+** Throw an SQLITE_IOERR if there are difficulties pulling the file
+** off of disk.
+*/
+static void readFileContents(sqlite3_context *ctx, const char *zName){
+  FILE *in;
+  sqlite3_int64 nIn;
+  void *pBuf;
+  sqlite3 *db;
+  int mxBlob;
+
+  in = sqlite3_fopen(zName, "rb");
+  if( in==0 ){
+    /* File does not exist or is unreadable. Leave the result set to NULL. */
+    return;
+  }
+  fseek(in, 0, SEEK_END);
+  nIn = ftell(in);
+  rewind(in);
+  db = sqlite3_context_db_handle(ctx);
+  mxBlob = sqlite3_limit(db, SQLITE_LIMIT_LENGTH, -1);
+  if( nIn>mxBlob ){
+    sqlite3_result_error_code(ctx, SQLITE_TOOBIG);
+    fclose(in);
+    return;
+  }
+  pBuf = sqlite3_malloc64( nIn ? nIn : 1 );
+  if( pBuf==0 ){
+    sqlite3_result_error_nomem(ctx);
+    fclose(in);
+    return;
+  }
+  if( nIn==(sqlite3_int64)fread(pBuf, 1, (size_t)nIn, in) ){
+    sqlite3_result_blob64(ctx, pBuf, nIn, sqlite3_free);
+  }else{
+    sqlite3_result_error_code(ctx, SQLITE_IOERR);
+    sqlite3_free(pBuf);
+  }
+  fclose(in);
+}
+
+/*
+** Implementation of the "readfile(X)" SQL function.  The entire content
+** of the file named X is read and returned as a BLOB.  NULL is returned
+** if the file does not exist or is unreadable.
+*/
+static void readfileFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  const char *zName;
+  (void)(argc);  /* Unused parameter */
+  zName = (const char*)sqlite3_value_text(argv[0]);
+  if( zName==0 ) return;
+  readFileContents(context, zName);
+}
+
+/*
+** Set the error message contained in context ctx to the results of
+** vprintf(zFmt, ...).
+*/
+static void ctxErrorMsg(sqlite3_context *ctx, const char *zFmt, ...){
+  char *zMsg = 0;
+  va_list ap;
+  va_start(ap, zFmt);
+  zMsg = sqlite3_vmprintf(zFmt, ap);
+  sqlite3_result_error(ctx, zMsg, -1);
+  sqlite3_free(zMsg);
+  va_end(ap);
+}
+
+#if defined(_WIN32)
+/*
+** This function is designed to convert a Win32 FILETIME structure into the
+** number of seconds since the Unix Epoch (1970-01-01 00:00:00 UTC).
+*/
+static sqlite3_uint64 fileTimeToUnixTime(
+  LPFILETIME pFileTime
+){
+  SYSTEMTIME epochSystemTime;
+  ULARGE_INTEGER epochIntervals;
+  FILETIME epochFileTime;
+  ULARGE_INTEGER fileIntervals;
+
+  memset(&epochSystemTime, 0, sizeof(SYSTEMTIME));
+  epochSystemTime.wYear = 1970;
+  epochSystemTime.wMonth = 1;
+  epochSystemTime.wDay = 1;
+  SystemTimeToFileTime(&epochSystemTime, &epochFileTime);
+  epochIntervals.LowPart = epochFileTime.dwLowDateTime;
+  epochIntervals.HighPart = epochFileTime.dwHighDateTime;
+
+  fileIntervals.LowPart = pFileTime->dwLowDateTime;
+  fileIntervals.HighPart = pFileTime->dwHighDateTime;
+
+  return (fileIntervals.QuadPart - epochIntervals.QuadPart) / 10000000;
+}
+
+
+#if defined(FILEIO_WIN32_DLL) && (defined(_WIN32) || defined(WIN32))
+#  /* To allow a standalone DLL, use this next replacement function: */
+#  undef sqlite3_win32_utf8_to_unicode
+#  define sqlite3_win32_utf8_to_unicode utf8_to_utf16
+#
+LPWSTR utf8_to_utf16(const char *z){
+  int nAllot = MultiByteToWideChar(CP_UTF8, 0, z, -1, NULL, 0);
+  LPWSTR rv = sqlite3_malloc(nAllot * sizeof(WCHAR));
+  if( rv!=0 && 0 < MultiByteToWideChar(CP_UTF8, 0, z, -1, rv, nAllot) )
+    return rv;
+  sqlite3_free(rv);
+  return 0;
+}
+#endif
+
+/*
+** This function attempts to normalize the time values found in the stat()
+** buffer to UTC.  This is necessary on Win32, where the runtime library
+** appears to return these values as local times.
+*/
+static void statTimesToUtc(
+  const char *zPath,
+  struct stat *pStatBuf
+){
+  HANDLE hFindFile;
+  WIN32_FIND_DATAW fd;
+  LPWSTR zUnicodeName;
+  extern LPWSTR sqlite3_win32_utf8_to_unicode(const char*);
+  zUnicodeName = sqlite3_win32_utf8_to_unicode(zPath);
+  if( zUnicodeName ){
+    memset(&fd, 0, sizeof(WIN32_FIND_DATAW));
+    hFindFile = FindFirstFileW(zUnicodeName, &fd);
+    if( hFindFile!=NULL ){
+      pStatBuf->st_ctime = (time_t)fileTimeToUnixTime(&fd.ftCreationTime);
+      pStatBuf->st_atime = (time_t)fileTimeToUnixTime(&fd.ftLastAccessTime);
+      pStatBuf->st_mtime = (time_t)fileTimeToUnixTime(&fd.ftLastWriteTime);
+      FindClose(hFindFile);
+    }
+    sqlite3_free(zUnicodeName);
+  }
+}
+#endif
+
+/*
+** This function is used in place of stat().  On Windows, special handling
+** is required in order for the included time to be returned as UTC.  On all
+** other systems, this function simply calls stat().
+*/
+static int fileStat(
+  const char *zPath,
+  struct stat *pStatBuf
+){
+#if defined(_WIN32)
+  int rc = stat(zPath, pStatBuf);
+  if( rc==0 ) statTimesToUtc(zPath, pStatBuf);
+  return rc;
+#else
+  return stat(zPath, pStatBuf);
+#endif
+}
+
+/*
+** This function is used in place of lstat().  On Windows, special handling
+** is required in order for the included time to be returned as UTC.  On all
+** other systems, this function simply calls lstat().
+*/
+static int fileLinkStat(
+  const char *zPath,
+  struct stat *pStatBuf
+){
+#if defined(_WIN32)
+  int rc = lstat(zPath, pStatBuf);
+  if( rc==0 ) statTimesToUtc(zPath, pStatBuf);
+  return rc;
+#else
+  return lstat(zPath, pStatBuf);
+#endif
+}
+
+/*
+** Argument zFile is the name of a file that will be created and/or written
+** by SQL function writefile(). This function ensures that the directory
+** zFile will be written to exists, creating it if required. The permissions
+** for any path components created by this function are set in accordance
+** with the current umask.
+**
+** If an OOM condition is encountered, SQLITE_NOMEM is returned. Otherwise,
+** SQLITE_OK is returned if the directory is successfully created, or
+** SQLITE_ERROR otherwise.
+*/
+static int makeDirectory(
+  const char *zFile
+){
+  char *zCopy = sqlite3_mprintf("%s", zFile);
+  int rc = SQLITE_OK;
+
+  if( zCopy==0 ){
+    rc = SQLITE_NOMEM;
+  }else{
+    int nCopy = (int)strlen(zCopy);
+    int i = 1;
+
+    while( rc==SQLITE_OK ){
+      struct stat sStat;
+      int rc2;
+
+      for(; zCopy[i]!='/' && i<nCopy; i++);
+      if( i==nCopy ) break;
+      zCopy[i] = '\0';
+
+      rc2 = fileStat(zCopy, &sStat);
+      if( rc2!=0 ){
+        if( mkdir(zCopy, 0777) ) rc = SQLITE_ERROR;
+      }else{
+        if( !S_ISDIR(sStat.st_mode) ) rc = SQLITE_ERROR;
+      }
+      zCopy[i] = '/';
+      i++;
+    }
+
+    sqlite3_free(zCopy);
+  }
+
+  return rc;
+}
+
+/*
+** This function does the work for the writefile() UDF. Refer to 
+** header comments at the top of this file for details.
+*/
+static int writeFile(
+  sqlite3_context *pCtx,          /* Context to return bytes written in */
+  const char *zFile,              /* File to write */
+  sqlite3_value *pData,           /* Data to write */
+  mode_t mode,                    /* MODE parameter passed to writefile() */
+  sqlite3_int64 mtime             /* MTIME parameter (or -1 to not set time) */
+){
+  if( zFile==0 ) return 1;
+#if !defined(_WIN32) && !defined(WIN32)
+  if( S_ISLNK(mode) ){
+    const char *zTo = (const char*)sqlite3_value_text(pData);
+    if( zTo==0 ) return 1;
+    unlink(zFile);
+    if( symlink(zTo, zFile)<0 ) return 1;
+  }else
+#endif
+  {
+    if( S_ISDIR(mode) ){
+      if( mkdir(zFile, mode) ){
+        /* The mkdir() call to create the directory failed. This might not
+        ** be an error though - if there is already a directory at the same
+        ** path and either the permissions already match or can be changed
+        ** to do so using chmod(), it is not an error.  */
+        struct stat sStat;
+        if( errno!=EEXIST
+         || 0!=fileStat(zFile, &sStat)
+         || !S_ISDIR(sStat.st_mode)
+         || ((sStat.st_mode&0777)!=(mode&0777) && 0!=chmod(zFile, mode&0777))
+        ){
+          return 1;
+        }
+      }
+    }else{
+      sqlite3_int64 nWrite = 0;
+      const char *z;
+      int rc = 0;
+      FILE *out = sqlite3_fopen(zFile, "wb");
+      if( out==0 ) return 1;
+      z = (const char*)sqlite3_value_blob(pData);
+      if( z ){
+        sqlite3_int64 n = fwrite(z, 1, sqlite3_value_bytes(pData), out);
+        nWrite = sqlite3_value_bytes(pData);
+        if( nWrite!=n ){
+          rc = 1;
+        }
+      }
+      fclose(out);
+      if( rc==0 && mode && chmod(zFile, mode & 0777) ){
+        rc = 1;
+      }
+      if( rc ) return 2;
+      sqlite3_result_int64(pCtx, nWrite);
+    }
+  }
+
+  if( mtime>=0 ){
+#if defined(_WIN32)
+#if !SQLITE_OS_WINRT
+    /* Windows */
+    FILETIME lastAccess;
+    FILETIME lastWrite;
+    SYSTEMTIME currentTime;
+    LONGLONG intervals;
+    HANDLE hFile;
+    LPWSTR zUnicodeName;
+    extern LPWSTR sqlite3_win32_utf8_to_unicode(const char*);
+
+    GetSystemTime(&currentTime);
+    SystemTimeToFileTime(&currentTime, &lastAccess);
+    intervals = Int32x32To64(mtime, 10000000) + 116444736000000000;
+    lastWrite.dwLowDateTime = (DWORD)intervals;
+    lastWrite.dwHighDateTime = intervals >> 32;
+    zUnicodeName = sqlite3_win32_utf8_to_unicode(zFile);
+    if( zUnicodeName==0 ){
+      return 1;
+    }
+    hFile = CreateFileW(
+      zUnicodeName, FILE_WRITE_ATTRIBUTES, 0, NULL, OPEN_EXISTING,
+      FILE_FLAG_BACKUP_SEMANTICS, NULL
+    );
+    sqlite3_free(zUnicodeName);
+    if( hFile!=INVALID_HANDLE_VALUE ){
+      BOOL bResult = SetFileTime(hFile, NULL, &lastAccess, &lastWrite);
+      CloseHandle(hFile);
+      return !bResult;
+    }else{
+      return 1;
+    }
+#endif
+#elif defined(AT_FDCWD) && 0 /* utimensat() is not universally available */
+    /* Recent unix */
+    struct timespec times[2];
+    times[0].tv_nsec = times[1].tv_nsec = 0;
+    times[0].tv_sec = time(0);
+    times[1].tv_sec = mtime;
+    if( utimensat(AT_FDCWD, zFile, times, AT_SYMLINK_NOFOLLOW) ){
+      return 1;
+    }
+#else
+    /* Legacy unix. 
+    **
+    ** Do not use utimes() on a symbolic link - it sees through the link and
+    ** modifies the timestamps on the target. Or fails if the target does 
+    ** not exist.  */
+    if( 0==S_ISLNK(mode) ){
+      struct timeval times[2];
+      times[0].tv_usec = times[1].tv_usec = 0;
+      times[0].tv_sec = time(0);
+      times[1].tv_sec = mtime;
+      if( utimes(zFile, times) ){
+        return 1;
+      }
+    }
+#endif
+  }
+
+  return 0;
+}
+
+/*
+** Implementation of the "writefile(W,X[,Y[,Z]]])" SQL function.  
+** Refer to header comments at the top of this file for details.
+*/
+static void writefileFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  const char *zFile;
+  mode_t mode = 0;
+  int res;
+  sqlite3_int64 mtime = -1;
+
+  if( argc<2 || argc>4 ){
+    sqlite3_result_error(context, 
+        "wrong number of arguments to function writefile()", -1
+    );
+    return;
+  }
+
+  zFile = (const char*)sqlite3_value_text(argv[0]);
+  if( zFile==0 ) return;
+  if( argc>=3 ){
+    mode = (mode_t)sqlite3_value_int(argv[2]);
+  }
+  if( argc==4 ){
+    mtime = sqlite3_value_int64(argv[3]);
+  }
+
+  res = writeFile(context, zFile, argv[1], mode, mtime);
+  if( res==1 && errno==ENOENT ){
+    if( makeDirectory(zFile)==SQLITE_OK ){
+      res = writeFile(context, zFile, argv[1], mode, mtime);
+    }
+  }
+
+  if( argc>2 && res!=0 ){
+    if( S_ISLNK(mode) ){
+      ctxErrorMsg(context, "failed to create symlink: %s", zFile);
+    }else if( S_ISDIR(mode) ){
+      ctxErrorMsg(context, "failed to create directory: %s", zFile);
+    }else{
+      ctxErrorMsg(context, "failed to write file: %s", zFile);
+    }
+  }
+}
+
+/*
+** SQL function:   lsmode(MODE)
+**
+** Given a numberic st_mode from stat(), convert it into a human-readable
+** text string in the style of "ls -l".
+*/
+static void lsModeFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  int i;
+  int iMode = sqlite3_value_int(argv[0]);
+  char z[16];
+  (void)argc;
+  if( S_ISLNK(iMode) ){
+    z[0] = 'l';
+  }else if( S_ISREG(iMode) ){
+    z[0] = '-';
+  }else if( S_ISDIR(iMode) ){
+    z[0] = 'd';
+  }else{
+    z[0] = '?';
+  }
+  for(i=0; i<3; i++){
+    int m = (iMode >> ((2-i)*3));
+    char *a = &z[1 + i*3];
+    a[0] = (m & 0x4) ? 'r' : '-';
+    a[1] = (m & 0x2) ? 'w' : '-';
+    a[2] = (m & 0x1) ? 'x' : '-';
+  }
+  z[10] = '\0';
+  sqlite3_result_text(context, z, -1, SQLITE_TRANSIENT);
+}
+
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+
+/* 
+** Cursor type for recursively iterating through a directory structure.
+*/
+typedef struct fsdir_cursor fsdir_cursor;
+typedef struct FsdirLevel FsdirLevel;
+
+struct FsdirLevel {
+  DIR *pDir;                 /* From opendir() */
+  char *zDir;                /* Name of directory (nul-terminated) */
+};
+
+struct fsdir_cursor {
+  sqlite3_vtab_cursor base;  /* Base class - must be first */
+
+  int nLvl;                  /* Number of entries in aLvl[] array */
+  int iLvl;                  /* Index of current entry */
+  FsdirLevel *aLvl;          /* Hierarchy of directories being traversed */
+
+  const char *zBase;
+  int nBase;
+
+  struct stat sStat;         /* Current lstat() results */
+  char *zPath;               /* Path to current entry */
+  sqlite3_int64 iRowid;      /* Current rowid */
+};
+
+typedef struct fsdir_tab fsdir_tab;
+struct fsdir_tab {
+  sqlite3_vtab base;         /* Base class - must be first */
+};
+
+/*
+** Construct a new fsdir virtual table object.
+*/
+static int fsdirConnect(
+  sqlite3 *db,
+  void *pAux,
+  int argc, const char *const*argv,
+  sqlite3_vtab **ppVtab,
+  char **pzErr
+){
+  fsdir_tab *pNew = 0;
+  int rc;
+  (void)pAux;
+  (void)argc;
+  (void)argv;
+  (void)pzErr;
+  rc = sqlite3_declare_vtab(db, "CREATE TABLE x" FSDIR_SCHEMA);
+  if( rc==SQLITE_OK ){
+    pNew = (fsdir_tab*)sqlite3_malloc( sizeof(*pNew) );
+    if( pNew==0 ) return SQLITE_NOMEM;
+    memset(pNew, 0, sizeof(*pNew));
+    sqlite3_vtab_config(db, SQLITE_VTAB_DIRECTONLY);
+  }
+  *ppVtab = (sqlite3_vtab*)pNew;
+  return rc;
+}
+
+/*
+** This method is the destructor for fsdir vtab objects.
+*/
+static int fsdirDisconnect(sqlite3_vtab *pVtab){
+  sqlite3_free(pVtab);
+  return SQLITE_OK;
+}
+
+/*
+** Constructor for a new fsdir_cursor object.
+*/
+static int fsdirOpen(sqlite3_vtab *p, sqlite3_vtab_cursor **ppCursor){
+  fsdir_cursor *pCur;
+  (void)p;
+  pCur = sqlite3_malloc( sizeof(*pCur) );
+  if( pCur==0 ) return SQLITE_NOMEM;
+  memset(pCur, 0, sizeof(*pCur));
+  pCur->iLvl = -1;
+  *ppCursor = &pCur->base;
+  return SQLITE_OK;
+}
+
+/*
+** Reset a cursor back to the state it was in when first returned
+** by fsdirOpen().
+*/
+static void fsdirResetCursor(fsdir_cursor *pCur){
+  int i;
+  for(i=0; i<=pCur->iLvl; i++){
+    FsdirLevel *pLvl = &pCur->aLvl[i];
+    if( pLvl->pDir ) closedir(pLvl->pDir);
+    sqlite3_free(pLvl->zDir);
+  }
+  sqlite3_free(pCur->zPath);
+  sqlite3_free(pCur->aLvl);
+  pCur->aLvl = 0;
+  pCur->zPath = 0;
+  pCur->zBase = 0;
+  pCur->nBase = 0;
+  pCur->nLvl = 0;
+  pCur->iLvl = -1;
+  pCur->iRowid = 1;
+}
+
+/*
+** Destructor for an fsdir_cursor.
+*/
+static int fsdirClose(sqlite3_vtab_cursor *cur){
+  fsdir_cursor *pCur = (fsdir_cursor*)cur;
+
+  fsdirResetCursor(pCur);
+  sqlite3_free(pCur);
+  return SQLITE_OK;
+}
+
+/*
+** Set the error message for the virtual table associated with cursor
+** pCur to the results of vprintf(zFmt, ...).
+*/
+static void fsdirSetErrmsg(fsdir_cursor *pCur, const char *zFmt, ...){
+  va_list ap;
+  va_start(ap, zFmt);
+  pCur->base.pVtab->zErrMsg = sqlite3_vmprintf(zFmt, ap);
+  va_end(ap);
+}
+
+
+/*
+** Advance an fsdir_cursor to its next row of output.
+*/
+static int fsdirNext(sqlite3_vtab_cursor *cur){
+  fsdir_cursor *pCur = (fsdir_cursor*)cur;
+  mode_t m = pCur->sStat.st_mode;
+
+  pCur->iRowid++;
+  if( S_ISDIR(m) ){
+    /* Descend into this directory */
+    int iNew = pCur->iLvl + 1;
+    FsdirLevel *pLvl;
+    if( iNew>=pCur->nLvl ){
+      int nNew = iNew+1;
+      sqlite3_int64 nByte = nNew*sizeof(FsdirLevel);
+      FsdirLevel *aNew = (FsdirLevel*)sqlite3_realloc64(pCur->aLvl, nByte);
+      if( aNew==0 ) return SQLITE_NOMEM;
+      memset(&aNew[pCur->nLvl], 0, sizeof(FsdirLevel)*(nNew-pCur->nLvl));
+      pCur->aLvl = aNew;
+      pCur->nLvl = nNew;
+    }
+    pCur->iLvl = iNew;
+    pLvl = &pCur->aLvl[iNew];
+    
+    pLvl->zDir = pCur->zPath;
+    pCur->zPath = 0;
+    pLvl->pDir = opendir(pLvl->zDir);
+    if( pLvl->pDir==0 ){
+      fsdirSetErrmsg(pCur, "cannot read directory: %s", pCur->zPath);
+      return SQLITE_ERROR;
+    }
+  }
+
+  while( pCur->iLvl>=0 ){
+    FsdirLevel *pLvl = &pCur->aLvl[pCur->iLvl];
+    struct dirent *pEntry = readdir(pLvl->pDir);
+    if( pEntry ){
+      if( pEntry->d_name[0]=='.' ){
+       if( pEntry->d_name[1]=='.' && pEntry->d_name[2]=='\0' ) continue;
+       if( pEntry->d_name[1]=='\0' ) continue;
+      }
+      sqlite3_free(pCur->zPath);
+      pCur->zPath = sqlite3_mprintf("%s/%s", pLvl->zDir, pEntry->d_name);
+      if( pCur->zPath==0 ) return SQLITE_NOMEM;
+      if( fileLinkStat(pCur->zPath, &pCur->sStat) ){
+        fsdirSetErrmsg(pCur, "cannot stat file: %s", pCur->zPath);
+        return SQLITE_ERROR;
+      }
+      return SQLITE_OK;
+    }
+    closedir(pLvl->pDir);
+    sqlite3_free(pLvl->zDir);
+    pLvl->pDir = 0;
+    pLvl->zDir = 0;
+    pCur->iLvl--;
+  }
+
+  /* EOF */
+  sqlite3_free(pCur->zPath);
+  pCur->zPath = 0;
+  return SQLITE_OK;
+}
+
+/*
+** Return values of columns for the row at which the series_cursor
+** is currently pointing.
+*/
+static int fsdirColumn(
+  sqlite3_vtab_cursor *cur,   /* The cursor */
+  sqlite3_context *ctx,       /* First argument to sqlite3_result_...() */
+  int i                       /* Which column to return */
+){
+  fsdir_cursor *pCur = (fsdir_cursor*)cur;
+  switch( i ){
+    case FSDIR_COLUMN_NAME: {
+      sqlite3_result_text(ctx, &pCur->zPath[pCur->nBase], -1, SQLITE_TRANSIENT);
+      break;
+    }
+
+    case FSDIR_COLUMN_MODE:
+      sqlite3_result_int64(ctx, pCur->sStat.st_mode);
+      break;
+
+    case FSDIR_COLUMN_MTIME:
+      sqlite3_result_int64(ctx, pCur->sStat.st_mtime);
+      break;
+
+    case FSDIR_COLUMN_DATA: {
+      mode_t m = pCur->sStat.st_mode;
+      if( S_ISDIR(m) ){
+        sqlite3_result_null(ctx);
+#if !defined(_WIN32) && !defined(WIN32)
+      }else if( S_ISLNK(m) ){
+        char aStatic[64];
+        char *aBuf = aStatic;
+        sqlite3_int64 nBuf = 64;
+        int n;
+
+        while( 1 ){
+          n = readlink(pCur->zPath, aBuf, nBuf);
+          if( n<nBuf ) break;
+          if( aBuf!=aStatic ) sqlite3_free(aBuf);
+          nBuf = nBuf*2;
+          aBuf = sqlite3_malloc64(nBuf);
+          if( aBuf==0 ){
+            sqlite3_result_error_nomem(ctx);
+            return SQLITE_NOMEM;
+          }
+        }
+
+        sqlite3_result_text(ctx, aBuf, n, SQLITE_TRANSIENT);
+        if( aBuf!=aStatic ) sqlite3_free(aBuf);
+#endif
+      }else{
+        readFileContents(ctx, pCur->zPath);
+      }
+    }
+    case FSDIR_COLUMN_PATH:
+    default: {
+      /* The FSDIR_COLUMN_PATH and FSDIR_COLUMN_DIR are input parameters.
+      ** always return their values as NULL */
+      break;
+    }
+  }
+  return SQLITE_OK;
+}
+
+/*
+** Return the rowid for the current row. In this implementation, the
+** first row returned is assigned rowid value 1, and each subsequent
+** row a value 1 more than that of the previous.
+*/
+static int fsdirRowid(sqlite3_vtab_cursor *cur, sqlite_int64 *pRowid){
+  fsdir_cursor *pCur = (fsdir_cursor*)cur;
+  *pRowid = pCur->iRowid;
+  return SQLITE_OK;
+}
+
+/*
+** Return TRUE if the cursor has been moved off of the last
+** row of output.
+*/
+static int fsdirEof(sqlite3_vtab_cursor *cur){
+  fsdir_cursor *pCur = (fsdir_cursor*)cur;
+  return (pCur->zPath==0);
+}
+
+/*
+** xFilter callback.
+**
+** idxNum==1   PATH parameter only
+** idxNum==2   Both PATH and DIR supplied
+*/
+static int fsdirFilter(
+  sqlite3_vtab_cursor *cur, 
+  int idxNum, const char *idxStr,
+  int argc, sqlite3_value **argv
+){
+  const char *zDir = 0;
+  fsdir_cursor *pCur = (fsdir_cursor*)cur;
+  (void)idxStr;
+  fsdirResetCursor(pCur);
+
+  if( idxNum==0 ){
+    fsdirSetErrmsg(pCur, "table function fsdir requires an argument");
+    return SQLITE_ERROR;
+  }
+
+  assert( argc==idxNum && (argc==1 || argc==2) );
+  zDir = (const char*)sqlite3_value_text(argv[0]);
+  if( zDir==0 ){
+    fsdirSetErrmsg(pCur, "table function fsdir requires a non-NULL argument");
+    return SQLITE_ERROR;
+  }
+  if( argc==2 ){
+    pCur->zBase = (const char*)sqlite3_value_text(argv[1]);
+  }
+  if( pCur->zBase ){
+    pCur->nBase = (int)strlen(pCur->zBase)+1;
+    pCur->zPath = sqlite3_mprintf("%s/%s", pCur->zBase, zDir);
+  }else{
+    pCur->zPath = sqlite3_mprintf("%s", zDir);
+  }
+
+  if( pCur->zPath==0 ){
+    return SQLITE_NOMEM;
+  }
+  if( fileLinkStat(pCur->zPath, &pCur->sStat) ){
+    fsdirSetErrmsg(pCur, "cannot stat file: %s", pCur->zPath);
+    return SQLITE_ERROR;
+  }
+
+  return SQLITE_OK;
+}
+
+/*
+** SQLite will invoke this method one or more times while planning a query
+** that uses the generate_series virtual table.  This routine needs to create
+** a query plan for each invocation and compute an estimated cost for that
+** plan.
+**
+** In this implementation idxNum is used to represent the
+** query plan.  idxStr is unused.
+**
+** The query plan is represented by values of idxNum:
+**
+**  (1)  The path value is supplied by argv[0]
+**  (2)  Path is in argv[0] and dir is in argv[1]
+*/
+static int fsdirBestIndex(
+  sqlite3_vtab *tab,
+  sqlite3_index_info *pIdxInfo
+){
+  int i;                 /* Loop over constraints */
+  int idxPath = -1;      /* Index in pIdxInfo->aConstraint of PATH= */
+  int idxDir = -1;       /* Index in pIdxInfo->aConstraint of DIR= */
+  int seenPath = 0;      /* True if an unusable PATH= constraint is seen */
+  int seenDir = 0;       /* True if an unusable DIR= constraint is seen */
+  const struct sqlite3_index_constraint *pConstraint;
+
+  (void)tab;
+  pConstraint = pIdxInfo->aConstraint;
+  for(i=0; i<pIdxInfo->nConstraint; i++, pConstraint++){
+    if( pConstraint->op!=SQLITE_INDEX_CONSTRAINT_EQ ) continue;
+    switch( pConstraint->iColumn ){
+      case FSDIR_COLUMN_PATH: {
+        if( pConstraint->usable ){
+          idxPath = i;
+          seenPath = 0;
+        }else if( idxPath<0 ){
+          seenPath = 1;
+        }
+        break;
+      }
+      case FSDIR_COLUMN_DIR: {
+        if( pConstraint->usable ){
+          idxDir = i;
+          seenDir = 0;
+        }else if( idxDir<0 ){
+          seenDir = 1;
+        }
+        break;
+      }
+    } 
+  }
+  if( seenPath || seenDir ){
+    /* If input parameters are unusable, disallow this plan */
+    return SQLITE_CONSTRAINT;
+  }
+
+  if( idxPath<0 ){
+    pIdxInfo->idxNum = 0;
+    /* The pIdxInfo->estimatedCost should have been initialized to a huge
+    ** number.  Leave it unchanged. */
+    pIdxInfo->estimatedRows = 0x7fffffff;
+  }else{
+    pIdxInfo->aConstraintUsage[idxPath].omit = 1;
+    pIdxInfo->aConstraintUsage[idxPath].argvIndex = 1;
+    if( idxDir>=0 ){
+      pIdxInfo->aConstraintUsage[idxDir].omit = 1;
+      pIdxInfo->aConstraintUsage[idxDir].argvIndex = 2;
+      pIdxInfo->idxNum = 2;
+      pIdxInfo->estimatedCost = 10.0;
+    }else{
+      pIdxInfo->idxNum = 1;
+      pIdxInfo->estimatedCost = 100.0;
+    }
+  }
+
+  return SQLITE_OK;
+}
+
+/*
+** Register the "fsdir" virtual table.
+*/
+static int fsdirRegister(sqlite3 *db){
+  static sqlite3_module fsdirModule = {
+    0,                         /* iVersion */
+    0,                         /* xCreate */
+    fsdirConnect,              /* xConnect */
+    fsdirBestIndex,            /* xBestIndex */
+    fsdirDisconnect,           /* xDisconnect */
+    0,                         /* xDestroy */
+    fsdirOpen,                 /* xOpen - open a cursor */
+    fsdirClose,                /* xClose - close a cursor */
+    fsdirFilter,               /* xFilter - configure scan constraints */
+    fsdirNext,                 /* xNext - advance a cursor */
+    fsdirEof,                  /* xEof - check for end of scan */
+    fsdirColumn,               /* xColumn - read data */
+    fsdirRowid,                /* xRowid - read data */
+    0,                         /* xUpdate */
+    0,                         /* xBegin */
+    0,                         /* xSync */
+    0,                         /* xCommit */
+    0,                         /* xRollback */
+    0,                         /* xFindMethod */
+    0,                         /* xRename */
+    0,                         /* xSavepoint */
+    0,                         /* xRelease */
+    0,                         /* xRollbackTo */
+    0,                         /* xShadowName */
+    0                          /* xIntegrity */
+  };
+
+  int rc = sqlite3_create_module(db, "fsdir", &fsdirModule, 0);
+  return rc;
+}
+#else         /* SQLITE_OMIT_VIRTUALTABLE */
+# define fsdirRegister(x) SQLITE_OK
+#endif
+
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_fileio_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  int rc = SQLITE_OK;
+  SQLITE_EXTENSION_INIT2(pApi);
+  (void)pzErrMsg;  /* Unused parameter */
+  rc = sqlite3_create_function(db, "readfile", 1, 
+                               SQLITE_UTF8|SQLITE_DIRECTONLY, 0,
+                               readfileFunc, 0, 0);
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_function(db, "writefile", -1,
+                                 SQLITE_UTF8|SQLITE_DIRECTONLY, 0,
+                                 writefileFunc, 0, 0);
+  }
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_function(db, "lsmode", 1, SQLITE_UTF8, 0,
+                                 lsModeFunc, 0, 0);
+  }
+  if( rc==SQLITE_OK ){
+    rc = fsdirRegister(db);
+  }
+  return rc;
+}
+
+#if defined(FILEIO_WIN32_DLL) && (defined(_WIN32) || defined(WIN32))
+/* To allow a standalone DLL, make test_windirent.c use the same
+ * redefined SQLite API calls as the above extension code does.
+ * Just pull in this .c to accomplish this. As a beneficial side
+ * effect, this extension becomes a single translation unit. */
+#  include "test_windirent.c"
+#endif
diff --git a/ext/misc/fossildelta.c b/ext/misc/fossildelta.c
new file mode 100644
index 0000000000000000000000000000000000000000..e638737d2b2dfba7734caf053b06e7c1aaef4f61
--- /dev/null
+++ b/ext/misc/fossildelta.c
@@ -0,0 +1,1093 @@
+/*
+** 2019-02-19
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This SQLite extension implements the delta functions used by the RBU
+** extension. Three scalar functions and one table-valued function are
+** implemented here:
+**
+**   delta_apply(X,D)     -- apply delta D to file X and return the result
+**   delta_create(X,Y)    -- compute and return a delta that carries X into Y
+**   delta_output_size(D) -- blob size in bytes output from applying delta D
+**   delta_parse(D)       -- returns rows describing delta D
+**
+** The delta format is the Fossil delta format, described in a comment
+** on the delete_create() function implementation below, and also at
+**
+**    https://www.fossil-scm.org/fossil/doc/trunk/www/delta_format.wiki
+**
+** This delta format is used by the RBU extension, which is the main
+** reason that these routines are included in the extension library.
+** RBU does not use this extension directly.  Rather, this extension is
+** provided as a convenience to developers who want to analyze RBU files 
+** that contain deltas.
+*/
+#include <string.h>
+#include <assert.h>
+#include <stdlib.h>
+#include "sqlite3ext.h"
+SQLITE_EXTENSION_INIT1
+
+#ifndef SQLITE_AMALGAMATION
+/*
+** The "u32" type must be an unsigned 32-bit integer.  Adjust this
+*/
+typedef unsigned int u32;
+
+/*
+** Must be a 16-bit value
+*/
+typedef short int s16;
+typedef unsigned short int u16;
+
+#endif /* SQLITE_AMALGAMATION */
+
+
+/*
+** The width of a hash window in bytes.  The algorithm only works if this
+** is a power of 2.
+*/
+#define NHASH 16
+
+/*
+** The current state of the rolling hash.
+**
+** z[] holds the values that have been hashed.  z[] is a circular buffer.
+** z[i] is the first entry and z[(i+NHASH-1)%NHASH] is the last entry of
+** the window.
+**
+** Hash.a is the sum of all elements of hash.z[].  Hash.b is a weighted
+** sum.  Hash.b is z[i]*NHASH + z[i+1]*(NHASH-1) + ... + z[i+NHASH-1]*1.
+** (Each index for z[] should be module NHASH, of course.  The %NHASH operator
+** is omitted in the prior expression for brevity.)
+*/
+typedef struct hash hash;
+struct hash {
+  u16 a, b;         /* Hash values */
+  u16 i;            /* Start of the hash window */
+  char z[NHASH];    /* The values that have been hashed */
+};
+
+/*
+** Initialize the rolling hash using the first NHASH characters of z[]
+*/
+static void hash_init(hash *pHash, const char *z){
+  u16 a, b, i;
+  a = b = z[0];
+  for(i=1; i<NHASH; i++){
+    a += z[i];
+    b += a;
+  }
+  memcpy(pHash->z, z, NHASH);
+  pHash->a = a & 0xffff;
+  pHash->b = b & 0xffff;
+  pHash->i = 0;
+}
+
+/*
+** Advance the rolling hash by a single character "c"
+*/
+static void hash_next(hash *pHash, int c){
+  u16 old = pHash->z[pHash->i];
+  pHash->z[pHash->i] = c;
+  pHash->i = (pHash->i+1)&(NHASH-1);
+  pHash->a = pHash->a - old + c;
+  pHash->b = pHash->b - NHASH*old + pHash->a;
+}
+
+/*
+** Return a 32-bit hash value
+*/
+static u32 hash_32bit(hash *pHash){
+  return (pHash->a & 0xffff) | (((u32)(pHash->b & 0xffff))<<16);
+}
+
+/*
+** Compute a hash on NHASH bytes.
+**
+** This routine is intended to be equivalent to:
+**    hash h;
+**    hash_init(&h, zInput);
+**    return hash_32bit(&h);
+*/
+static u32 hash_once(const char *z){
+  u16 a, b, i;
+  a = b = z[0];
+  for(i=1; i<NHASH; i++){
+    a += z[i];
+    b += a;
+  }
+  return a | (((u32)b)<<16);
+}
+
+/*
+** Write an base-64 integer into the given buffer.
+*/
+static void putInt(unsigned int v, char **pz){
+  static const char zDigits[] =
+    "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz~";
+  /*  123456789 123456789 123456789 123456789 123456789 123456789 123 */
+  int i, j;
+  char zBuf[20];
+  if( v==0 ){
+    *(*pz)++ = '0';
+    return;
+  }
+  for(i=0; v>0; i++, v>>=6){
+    zBuf[i] = zDigits[v&0x3f];
+  }
+  for(j=i-1; j>=0; j--){
+    *(*pz)++ = zBuf[j];
+  }
+}
+
+/*
+** Read bytes from *pz and convert them into a positive integer.  When
+** finished, leave *pz pointing to the first character past the end of
+** the integer.  The *pLen parameter holds the length of the string
+** in *pz and is decremented once for each character in the integer.
+*/
+static unsigned int deltaGetInt(const char **pz, int *pLen){
+  static const signed char zValue[] = {
+    -1, -1, -1, -1, -1, -1, -1, -1,   -1, -1, -1, -1, -1, -1, -1, -1,
+    -1, -1, -1, -1, -1, -1, -1, -1,   -1, -1, -1, -1, -1, -1, -1, -1,
+    -1, -1, -1, -1, -1, -1, -1, -1,   -1, -1, -1, -1, -1, -1, -1, -1,
+     0,  1,  2,  3,  4,  5,  6,  7,    8,  9, -1, -1, -1, -1, -1, -1,
+    -1, 10, 11, 12, 13, 14, 15, 16,   17, 18, 19, 20, 21, 22, 23, 24,
+    25, 26, 27, 28, 29, 30, 31, 32,   33, 34, 35, -1, -1, -1, -1, 36,
+    -1, 37, 38, 39, 40, 41, 42, 43,   44, 45, 46, 47, 48, 49, 50, 51,
+    52, 53, 54, 55, 56, 57, 58, 59,   60, 61, 62, -1, -1, -1, 63, -1,
+  };
+  unsigned int v = 0;
+  int c;
+  unsigned char *z = (unsigned char*)*pz;
+  unsigned char *zStart = z;
+  while( (c = zValue[0x7f&*(z++)])>=0 ){
+     v = (v<<6) + c;
+  }
+  z--;
+  *pLen -= z - zStart;
+  *pz = (char*)z;
+  return v;
+}
+
+/*
+** Return the number digits in the base-64 representation of a positive integer
+*/
+static int digit_count(int v){
+  unsigned int i, x;
+  for(i=1, x=64; v>=x; i++, x <<= 6){}
+  return i;
+}
+
+#ifdef __GNUC__
+# define GCC_VERSION (__GNUC__*1000000+__GNUC_MINOR__*1000+__GNUC_PATCHLEVEL__)
+#else
+# define GCC_VERSION 0
+#endif
+
+/*
+** Compute a 32-bit big-endian checksum on the N-byte buffer.  If the
+** buffer is not a multiple of 4 bytes length, compute the sum that would
+** have occurred if the buffer was padded with zeros to the next multiple
+** of four bytes.
+*/
+static unsigned int checksum(const char *zIn, size_t N){
+  static const int byteOrderTest = 1;
+  const unsigned char *z = (const unsigned char *)zIn;
+  const unsigned char *zEnd = (const unsigned char*)&zIn[N&~3];
+  unsigned sum = 0;
+  assert( (z - (const unsigned char*)0)%4==0 );  /* Four-byte alignment */
+  if( 0==*(char*)&byteOrderTest ){
+    /* This is a big-endian machine */
+    while( z<zEnd ){
+      sum += *(unsigned*)z;
+      z += 4;
+    }
+  }else{
+    /* A little-endian machine */
+#if GCC_VERSION>=4003000
+    while( z<zEnd ){
+      sum += __builtin_bswap32(*(unsigned*)z);
+      z += 4;
+    }
+#elif defined(_MSC_VER) && _MSC_VER>=1300
+    while( z<zEnd ){
+      sum += _byteswap_ulong(*(unsigned*)z);
+      z += 4;
+    }
+#else
+    unsigned sum0 = 0;
+    unsigned sum1 = 0;
+    unsigned sum2 = 0;
+    while(N >= 16){
+      sum0 += ((unsigned)z[0] + z[4] + z[8] + z[12]);
+      sum1 += ((unsigned)z[1] + z[5] + z[9] + z[13]);
+      sum2 += ((unsigned)z[2] + z[6] + z[10]+ z[14]);
+      sum  += ((unsigned)z[3] + z[7] + z[11]+ z[15]);
+      z += 16;
+      N -= 16;
+    }
+    while(N >= 4){
+      sum0 += z[0];
+      sum1 += z[1];
+      sum2 += z[2];
+      sum  += z[3];
+      z += 4;
+      N -= 4;
+    }
+    sum += (sum2 << 8) + (sum1 << 16) + (sum0 << 24);
+#endif
+  }
+  switch(N&3){
+    case 3:   sum += (z[2] << 8);
+    case 2:   sum += (z[1] << 16);
+    case 1:   sum += (z[0] << 24);
+    default:  ;
+  }
+  return sum;
+}
+
+/*
+** Create a new delta.
+**
+** The delta is written into a preallocated buffer, zDelta, which
+** should be at least 60 bytes longer than the target file, zOut.
+** The delta string will be NUL-terminated, but it might also contain
+** embedded NUL characters if either the zSrc or zOut files are
+** binary.  This function returns the length of the delta string
+** in bytes, excluding the final NUL terminator character.
+**
+** Output Format:
+**
+** The delta begins with a base64 number followed by a newline.  This
+** number is the number of bytes in the TARGET file.  Thus, given a
+** delta file z, a program can compute the size of the output file
+** simply by reading the first line and decoding the base-64 number
+** found there.  The delta_output_size() routine does exactly this.
+**
+** After the initial size number, the delta consists of a series of
+** literal text segments and commands to copy from the SOURCE file.
+** A copy command looks like this:
+**
+**     NNN@MMM,
+**
+** where NNN is the number of bytes to be copied and MMM is the offset
+** into the source file of the first byte (both base-64).   If NNN is 0
+** it means copy the rest of the input file.  Literal text is like this:
+**
+**     NNN:TTTTT
+**
+** where NNN is the number of bytes of text (base-64) and TTTTT is the text.
+**
+** The last term is of the form
+**
+**     NNN;
+**
+** In this case, NNN is a 32-bit bigendian checksum of the output file
+** that can be used to verify that the delta applied correctly.  All
+** numbers are in base-64.
+**
+** Pure text files generate a pure text delta.  Binary files generate a
+** delta that may contain some binary data.
+**
+** Algorithm:
+**
+** The encoder first builds a hash table to help it find matching
+** patterns in the source file.  16-byte chunks of the source file
+** sampled at evenly spaced intervals are used to populate the hash
+** table.
+**
+** Next we begin scanning the target file using a sliding 16-byte
+** window.  The hash of the 16-byte window in the target is used to
+** search for a matching section in the source file.  When a match
+** is found, a copy command is added to the delta.  An effort is
+** made to extend the matching section to regions that come before
+** and after the 16-byte hash window.  A copy command is only issued
+** if the result would use less space that just quoting the text
+** literally. Literal text is added to the delta for sections that
+** do not match or which can not be encoded efficiently using copy
+** commands.
+*/
+static int delta_create(
+  const char *zSrc,      /* The source or pattern file */
+  unsigned int lenSrc,   /* Length of the source file */
+  const char *zOut,      /* The target file */
+  unsigned int lenOut,   /* Length of the target file */
+  char *zDelta           /* Write the delta into this buffer */
+){
+  int i, base;
+  char *zOrigDelta = zDelta;
+  hash h;
+  int nHash;                 /* Number of hash table entries */
+  int *landmark;             /* Primary hash table */
+  int *collide;              /* Collision chain */
+  int lastRead = -1;         /* Last byte of zSrc read by a COPY command */
+
+  /* Add the target file size to the beginning of the delta
+  */
+  putInt(lenOut, &zDelta);
+  *(zDelta++) = '\n';
+
+  /* If the source file is very small, it means that we have no
+  ** chance of ever doing a copy command.  Just output a single
+  ** literal segment for the entire target and exit.
+  */
+  if( lenSrc<=NHASH ){
+    putInt(lenOut, &zDelta);
+    *(zDelta++) = ':';
+    memcpy(zDelta, zOut, lenOut);
+    zDelta += lenOut;
+    putInt(checksum(zOut, lenOut), &zDelta);
+    *(zDelta++) = ';';
+    return zDelta - zOrigDelta;
+  }
+
+  /* Compute the hash table used to locate matching sections in the
+  ** source file.
+  */
+  nHash = lenSrc/NHASH;
+  collide = sqlite3_malloc64( (sqlite3_int64)nHash*2*sizeof(int) );
+  memset(collide, -1, nHash*2*sizeof(int));
+  landmark = &collide[nHash];
+  for(i=0; i<lenSrc-NHASH; i+=NHASH){
+    int hv = hash_once(&zSrc[i]) % nHash;
+    collide[i/NHASH] = landmark[hv];
+    landmark[hv] = i/NHASH;
+  }
+
+  /* Begin scanning the target file and generating copy commands and
+  ** literal sections of the delta.
+  */
+  base = 0;    /* We have already generated everything before zOut[base] */
+  while( base+NHASH<lenOut ){
+    int iSrc, iBlock;
+    unsigned int bestCnt, bestOfst=0, bestLitsz=0;
+    hash_init(&h, &zOut[base]);
+    i = 0;     /* Trying to match a landmark against zOut[base+i] */
+    bestCnt = 0;
+    while( 1 ){
+      int hv;
+      int limit = 250;
+
+      hv = hash_32bit(&h) % nHash;
+      iBlock = landmark[hv];
+      while( iBlock>=0 && (limit--)>0 ){
+        /*
+        ** The hash window has identified a potential match against
+        ** landmark block iBlock.  But we need to investigate further.
+        **
+        ** Look for a region in zOut that matches zSrc. Anchor the search
+        ** at zSrc[iSrc] and zOut[base+i].  Do not include anything prior to
+        ** zOut[base] or after zOut[outLen] nor anything after zSrc[srcLen].
+        **
+        ** Set cnt equal to the length of the match and set ofst so that
+        ** zSrc[ofst] is the first element of the match.  litsz is the number
+        ** of characters between zOut[base] and the beginning of the match.
+        ** sz will be the overhead (in bytes) needed to encode the copy
+        ** command.  Only generate copy command if the overhead of the
+        ** copy command is less than the amount of literal text to be copied.
+        */
+        int cnt, ofst, litsz;
+        int j, k, x, y;
+        int sz;
+        int limitX;
+
+        /* Beginning at iSrc, match forwards as far as we can.  j counts
+        ** the number of characters that match */
+        iSrc = iBlock*NHASH;
+        y = base+i;
+        limitX = ( lenSrc-iSrc <= lenOut-y ) ? lenSrc : iSrc + lenOut - y;
+        for(x=iSrc; x<limitX; x++, y++){
+          if( zSrc[x]!=zOut[y] ) break;
+        }
+        j = x - iSrc - 1;
+
+        /* Beginning at iSrc-1, match backwards as far as we can.  k counts
+        ** the number of characters that match */
+        for(k=1; k<iSrc && k<=i; k++){
+          if( zSrc[iSrc-k]!=zOut[base+i-k] ) break;
+        }
+        k--;
+
+        /* Compute the offset and size of the matching region */
+        ofst = iSrc-k;
+        cnt = j+k+1;
+        litsz = i-k;  /* Number of bytes of literal text before the copy */
+        /* sz will hold the number of bytes needed to encode the "insert"
+        ** command and the copy command, not counting the "insert" text */
+        sz = digit_count(i-k)+digit_count(cnt)+digit_count(ofst)+3;
+        if( cnt>=sz && cnt>bestCnt ){
+          /* Remember this match only if it is the best so far and it
+          ** does not increase the file size */
+          bestCnt = cnt;
+          bestOfst = iSrc-k;
+          bestLitsz = litsz;
+        }
+
+        /* Check the next matching block */
+        iBlock = collide[iBlock];
+      }
+
+      /* We have a copy command that does not cause the delta to be larger
+      ** than a literal insert.  So add the copy command to the delta.
+      */
+      if( bestCnt>0 ){
+        if( bestLitsz>0 ){
+          /* Add an insert command before the copy */
+          putInt(bestLitsz,&zDelta);
+          *(zDelta++) = ':';
+          memcpy(zDelta, &zOut[base], bestLitsz);
+          zDelta += bestLitsz;
+          base += bestLitsz;
+        }
+        base += bestCnt;
+        putInt(bestCnt, &zDelta);
+        *(zDelta++) = '@';
+        putInt(bestOfst, &zDelta);
+        *(zDelta++) = ',';
+        if( bestOfst + bestCnt -1 > lastRead ){
+          lastRead = bestOfst + bestCnt - 1;
+        }
+        bestCnt = 0;
+        break;
+      }
+
+      /* If we reach this point, it means no match is found so far */
+      if( base+i+NHASH>=lenOut ){
+        /* We have reached the end of the file and have not found any
+        ** matches.  Do an "insert" for everything that does not match */
+        putInt(lenOut-base, &zDelta);
+        *(zDelta++) = ':';
+        memcpy(zDelta, &zOut[base], lenOut-base);
+        zDelta += lenOut-base;
+        base = lenOut;
+        break;
+      }
+
+      /* Advance the hash by one character.  Keep looking for a match */
+      hash_next(&h, zOut[base+i+NHASH]);
+      i++;
+    }
+  }
+  /* Output a final "insert" record to get all the text at the end of
+  ** the file that does not match anything in the source file.
+  */
+  if( base<lenOut ){
+    putInt(lenOut-base, &zDelta);
+    *(zDelta++) = ':';
+    memcpy(zDelta, &zOut[base], lenOut-base);
+    zDelta += lenOut-base;
+  }
+  /* Output the final checksum record. */
+  putInt(checksum(zOut, lenOut), &zDelta);
+  *(zDelta++) = ';';
+  sqlite3_free(collide);
+  return zDelta - zOrigDelta;
+}
+
+/*
+** Return the size (in bytes) of the output from applying
+** a delta.
+**
+** This routine is provided so that an procedure that is able
+** to call delta_apply() can learn how much space is required
+** for the output and hence allocate nor more space that is really
+** needed.
+*/
+static int delta_output_size(const char *zDelta, int lenDelta){
+  int size;
+  size = deltaGetInt(&zDelta, &lenDelta);
+  if( *zDelta!='\n' ){
+    /* ERROR: size integer not terminated by "\n" */
+    return -1;
+  }
+  return size;
+}
+
+
+/*
+** Apply a delta.
+**
+** The output buffer should be big enough to hold the whole output
+** file and a NUL terminator at the end.  The delta_output_size()
+** routine will determine this size for you.
+**
+** The delta string should be null-terminated.  But the delta string
+** may contain embedded NUL characters (if the input and output are
+** binary files) so we also have to pass in the length of the delta in
+** the lenDelta parameter.
+**
+** This function returns the size of the output file in bytes (excluding
+** the final NUL terminator character).  Except, if the delta string is
+** malformed or intended for use with a source file other than zSrc,
+** then this routine returns -1.
+**
+** Refer to the delta_create() documentation above for a description
+** of the delta file format.
+*/
+static int delta_apply(
+  const char *zSrc,      /* The source or pattern file */
+  int lenSrc,            /* Length of the source file */
+  const char *zDelta,    /* Delta to apply to the pattern */
+  int lenDelta,          /* Length of the delta */
+  char *zOut             /* Write the output into this preallocated buffer */
+){
+  unsigned int limit;
+  unsigned int total = 0;
+#ifdef FOSSIL_ENABLE_DELTA_CKSUM_TEST
+  char *zOrigOut = zOut;
+#endif
+
+  limit = deltaGetInt(&zDelta, &lenDelta);
+  if( *zDelta!='\n' ){
+    /* ERROR: size integer not terminated by "\n" */
+    return -1;
+  }
+  zDelta++; lenDelta--;
+  while( *zDelta && lenDelta>0 ){
+    unsigned int cnt, ofst;
+    cnt = deltaGetInt(&zDelta, &lenDelta);
+    switch( zDelta[0] ){
+      case '@': {
+        zDelta++; lenDelta--;
+        ofst = deltaGetInt(&zDelta, &lenDelta);
+        if( lenDelta>0 && zDelta[0]!=',' ){
+          /* ERROR: copy command not terminated by ',' */
+          return -1;
+        }
+        zDelta++; lenDelta--;
+        total += cnt;
+        if( total>limit ){
+          /* ERROR: copy exceeds output file size */
+          return -1;
+        }
+        if( ofst+cnt > lenSrc ){
+          /* ERROR: copy extends past end of input */
+          return -1;
+        }
+        memcpy(zOut, &zSrc[ofst], cnt);
+        zOut += cnt;
+        break;
+      }
+      case ':': {
+        zDelta++; lenDelta--;
+        total += cnt;
+        if( total>limit ){
+          /* ERROR:  insert command gives an output larger than predicted */
+          return -1;
+        }
+        if( cnt>lenDelta ){
+          /* ERROR: insert count exceeds size of delta */
+          return -1;
+        }
+        memcpy(zOut, zDelta, cnt);
+        zOut += cnt;
+        zDelta += cnt;
+        lenDelta -= cnt;
+        break;
+      }
+      case ';': {
+        zDelta++; lenDelta--;
+        zOut[0] = 0;
+#ifdef FOSSIL_ENABLE_DELTA_CKSUM_TEST
+        if( cnt!=checksum(zOrigOut, total) ){
+          /* ERROR:  bad checksum */
+          return -1;
+        }
+#endif
+        if( total!=limit ){
+          /* ERROR: generated size does not match predicted size */
+          return -1;
+        }
+        return total;
+      }
+      default: {
+        /* ERROR: unknown delta operator */
+        return -1;
+      }
+    }
+  }
+  /* ERROR: unterminated delta */
+  return -1;
+}
+
+/*
+** SQL functions:  delta_create(X,Y)
+**
+** Return a delta for carrying X into Y.
+*/
+static void deltaCreateFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  const char *aOrig; int nOrig;  /* old blob */
+  const char *aNew;  int nNew;   /* new blob */
+  char *aOut;        int nOut;   /* output delta */
+
+  assert( argc==2 );
+  if( sqlite3_value_type(argv[0])==SQLITE_NULL ) return;
+  if( sqlite3_value_type(argv[1])==SQLITE_NULL ) return;
+  nOrig = sqlite3_value_bytes(argv[0]);
+  aOrig = (const char*)sqlite3_value_blob(argv[0]);
+  nNew = sqlite3_value_bytes(argv[1]);
+  aNew = (const char*)sqlite3_value_blob(argv[1]);
+  aOut = sqlite3_malloc64(nNew+70);
+  if( aOut==0 ){
+    sqlite3_result_error_nomem(context);
+  }else{
+    nOut = delta_create(aOrig, nOrig, aNew, nNew, aOut);
+    if( nOut<0 ){
+      sqlite3_free(aOut);
+      sqlite3_result_error(context, "cannot create fossil delta", -1);
+    }else{
+      sqlite3_result_blob(context, aOut, nOut, sqlite3_free);
+    }
+  }
+}
+
+/*
+** SQL functions:  delta_apply(X,D)
+**
+** Return the result of applying delta D to input X.
+*/
+static void deltaApplyFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  const char *aOrig;   int nOrig;        /* The X input */
+  const char *aDelta;  int nDelta;       /* The input delta (D) */
+  char *aOut;          int nOut, nOut2;  /* The output */
+
+  assert( argc==2 );
+  if( sqlite3_value_type(argv[0])==SQLITE_NULL ) return;
+  if( sqlite3_value_type(argv[1])==SQLITE_NULL ) return;
+  nOrig = sqlite3_value_bytes(argv[0]);
+  aOrig = (const char*)sqlite3_value_blob(argv[0]);
+  nDelta = sqlite3_value_bytes(argv[1]);
+  aDelta = (const char*)sqlite3_value_blob(argv[1]);
+
+  /* Figure out the size of the output */
+  nOut = delta_output_size(aDelta, nDelta);
+  if( nOut<0 ){
+    sqlite3_result_error(context, "corrupt fossil delta", -1);
+    return;
+  }
+  aOut = sqlite3_malloc64((sqlite3_int64)nOut+1);
+  if( aOut==0 ){
+    sqlite3_result_error_nomem(context);
+  }else{
+    nOut2 = delta_apply(aOrig, nOrig, aDelta, nDelta, aOut);
+    if( nOut2!=nOut ){
+      sqlite3_free(aOut);
+      sqlite3_result_error(context, "corrupt fossil delta", -1);
+    }else{
+      sqlite3_result_blob(context, aOut, nOut, sqlite3_free);
+    }
+  }
+}
+
+
+/*
+** SQL functions:  delta_output_size(D)
+**
+** Return the size of the output that results from applying delta D.
+*/
+static void deltaOutputSizeFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  const char *aDelta;  int nDelta;       /* The input delta (D) */
+  int nOut;                              /* Size of output */
+  assert( argc==1 );
+  if( sqlite3_value_type(argv[0])==SQLITE_NULL ) return;
+  nDelta = sqlite3_value_bytes(argv[0]);
+  aDelta = (const char*)sqlite3_value_blob(argv[0]);
+
+  /* Figure out the size of the output */
+  nOut = delta_output_size(aDelta, nDelta);
+  if( nOut<0 ){
+    sqlite3_result_error(context, "corrupt fossil delta", -1);
+    return;
+  }else{
+    sqlite3_result_int(context, nOut);
+  }
+}
+
+/*****************************************************************************
+** Table-valued SQL function:   delta_parse(DELTA)
+**
+** Schema:
+**
+**     CREATE TABLE delta_parse(
+**       op TEXT,
+**       a1 INT,
+**       a2 ANY,
+**       delta HIDDEN BLOB
+**     );
+**
+** Given an input DELTA, this function parses the delta and returns
+** rows for each entry in the delta.  The op column has one of the
+** values SIZE, COPY, INSERT, CHECKSUM, ERROR.
+**
+** Assuming no errors, the first row has op='SIZE'.  a1 is the size of
+** the output in bytes and a2 is NULL.
+**
+** After the initial SIZE row, there are zero or more 'COPY' and/or 'INSERT'
+** rows.  A COPY row means content is copied from the source into the
+** output.  Column a1 is the number of bytes to copy and a2 is the offset
+** into source from which to begin copying.  An INSERT row means to
+** insert text into the output stream.  Column a1 is the number of bytes
+** to insert and column is a BLOB that contains the text to be inserted.
+**
+** The last row of a well-formed delta will have an op value of 'CHECKSUM'.
+** The a1 column will be the value of the checksum and a2 will be NULL.
+**
+** If the input delta is not well-formed, then a row with an op value
+** of 'ERROR' is returned.  The a1 value of the ERROR row is the offset
+** into the delta where the error was encountered and a2 is NULL.
+*/
+typedef struct deltaparsevtab_vtab deltaparsevtab_vtab;
+typedef struct deltaparsevtab_cursor deltaparsevtab_cursor;
+struct deltaparsevtab_vtab {
+  sqlite3_vtab base;  /* Base class - must be first */
+  /* No additional information needed */
+};
+struct deltaparsevtab_cursor {
+  sqlite3_vtab_cursor base;  /* Base class - must be first */
+  char *aDelta;              /* The delta being parsed */
+  int nDelta;                /* Number of bytes in the delta */
+  int iCursor;               /* Current cursor location */
+  int eOp;                   /* Name of current operator */
+  unsigned int a1, a2;       /* Arguments to current operator */
+  int iNext;                 /* Next cursor value */
+};
+
+/* Operator names:
+*/
+static const char *azOp[] = {
+  "SIZE", "COPY", "INSERT", "CHECKSUM", "ERROR", "EOF"
+};
+#define DELTAPARSE_OP_SIZE         0
+#define DELTAPARSE_OP_COPY         1
+#define DELTAPARSE_OP_INSERT       2
+#define DELTAPARSE_OP_CHECKSUM     3
+#define DELTAPARSE_OP_ERROR        4
+#define DELTAPARSE_OP_EOF          5
+
+/*
+** The deltaparsevtabConnect() method is invoked to create a new
+** deltaparse virtual table.
+**
+** Think of this routine as the constructor for deltaparsevtab_vtab objects.
+**
+** All this routine needs to do is:
+**
+**    (1) Allocate the deltaparsevtab_vtab object and initialize all fields.
+**
+**    (2) Tell SQLite (via the sqlite3_declare_vtab() interface) what the
+**        result set of queries against the virtual table will look like.
+*/
+static int deltaparsevtabConnect(
+  sqlite3 *db,
+  void *pAux,
+  int argc, const char *const*argv,
+  sqlite3_vtab **ppVtab,
+  char **pzErr
+){
+  deltaparsevtab_vtab *pNew;
+  int rc;
+
+  rc = sqlite3_declare_vtab(db,
+           "CREATE TABLE x(op,a1,a2,delta HIDDEN)"
+       );
+  /* For convenience, define symbolic names for the index to each column. */
+#define DELTAPARSEVTAB_OP     0
+#define DELTAPARSEVTAB_A1     1
+#define DELTAPARSEVTAB_A2     2
+#define DELTAPARSEVTAB_DELTA  3
+  if( rc==SQLITE_OK ){
+    pNew = sqlite3_malloc64( sizeof(*pNew) );
+    *ppVtab = (sqlite3_vtab*)pNew;
+    if( pNew==0 ) return SQLITE_NOMEM;
+    memset(pNew, 0, sizeof(*pNew));
+    sqlite3_vtab_config(db, SQLITE_VTAB_INNOCUOUS);
+  }
+  return rc;
+}
+
+/*
+** This method is the destructor for deltaparsevtab_vtab objects.
+*/
+static int deltaparsevtabDisconnect(sqlite3_vtab *pVtab){
+  deltaparsevtab_vtab *p = (deltaparsevtab_vtab*)pVtab;
+  sqlite3_free(p);
+  return SQLITE_OK;
+}
+
+/*
+** Constructor for a new deltaparsevtab_cursor object.
+*/
+static int deltaparsevtabOpen(sqlite3_vtab *p, sqlite3_vtab_cursor **ppCursor){
+  deltaparsevtab_cursor *pCur;
+  pCur = sqlite3_malloc( sizeof(*pCur) );
+  if( pCur==0 ) return SQLITE_NOMEM;
+  memset(pCur, 0, sizeof(*pCur));
+  *ppCursor = &pCur->base;
+  return SQLITE_OK;
+}
+
+/*
+** Destructor for a deltaparsevtab_cursor.
+*/
+static int deltaparsevtabClose(sqlite3_vtab_cursor *cur){
+  deltaparsevtab_cursor *pCur = (deltaparsevtab_cursor*)cur;
+  sqlite3_free(pCur->aDelta);
+  sqlite3_free(pCur);
+  return SQLITE_OK;
+}
+
+
+/*
+** Advance a deltaparsevtab_cursor to its next row of output.
+*/
+static int deltaparsevtabNext(sqlite3_vtab_cursor *cur){
+  deltaparsevtab_cursor *pCur = (deltaparsevtab_cursor*)cur;
+  const char *z;
+  int i = 0;
+
+  pCur->iCursor = pCur->iNext;
+  z = pCur->aDelta + pCur->iCursor;
+  pCur->a1 = deltaGetInt(&z, &i);
+  switch( z[0] ){
+    case '@': {
+      z++;
+      pCur->a2 = deltaGetInt(&z, &i);
+      pCur->eOp = DELTAPARSE_OP_COPY;
+      pCur->iNext = (int)(&z[1] - pCur->aDelta);
+      break;
+    }
+    case ':': {
+      z++;
+      pCur->a2 = (unsigned int)(z - pCur->aDelta);
+      pCur->eOp = DELTAPARSE_OP_INSERT;
+      pCur->iNext = (int)(&z[pCur->a1] - pCur->aDelta);
+      break;
+    }
+    case ';': {
+      pCur->eOp = DELTAPARSE_OP_CHECKSUM;
+      pCur->iNext = pCur->nDelta;
+      break;
+    }
+    default: {
+      if( pCur->iNext==pCur->nDelta ){
+        pCur->eOp = DELTAPARSE_OP_EOF;
+      }else{
+        pCur->eOp = DELTAPARSE_OP_ERROR;
+        pCur->iNext = pCur->nDelta;
+      }
+      break;
+    }
+  }
+  return SQLITE_OK;
+}
+
+/*
+** Return values of columns for the row at which the deltaparsevtab_cursor
+** is currently pointing.
+*/
+static int deltaparsevtabColumn(
+  sqlite3_vtab_cursor *cur,   /* The cursor */
+  sqlite3_context *ctx,       /* First argument to sqlite3_result_...() */
+  int i                       /* Which column to return */
+){
+  deltaparsevtab_cursor *pCur = (deltaparsevtab_cursor*)cur;
+  switch( i ){
+    case DELTAPARSEVTAB_OP: {
+      sqlite3_result_text(ctx, azOp[pCur->eOp], -1, SQLITE_STATIC);
+      break;
+    }
+    case DELTAPARSEVTAB_A1: {
+      sqlite3_result_int(ctx, pCur->a1);
+      break;
+    }
+    case DELTAPARSEVTAB_A2: {
+      if( pCur->eOp==DELTAPARSE_OP_COPY ){
+        sqlite3_result_int(ctx, pCur->a2);
+      }else if( pCur->eOp==DELTAPARSE_OP_INSERT ){
+        sqlite3_result_blob(ctx, pCur->aDelta+pCur->a2, pCur->a1,
+                            SQLITE_TRANSIENT);
+      }
+      break;
+    }
+    case DELTAPARSEVTAB_DELTA: {
+      sqlite3_result_blob(ctx, pCur->aDelta, pCur->nDelta, SQLITE_TRANSIENT);
+      break;
+    }
+  }
+  return SQLITE_OK;
+}
+
+/*
+** Return the rowid for the current row.  In this implementation, the
+** rowid is the same as the output value.
+*/
+static int deltaparsevtabRowid(sqlite3_vtab_cursor *cur, sqlite_int64 *pRowid){
+  deltaparsevtab_cursor *pCur = (deltaparsevtab_cursor*)cur;
+  *pRowid = pCur->iCursor;
+  return SQLITE_OK;
+}
+
+/*
+** Return TRUE if the cursor has been moved off of the last
+** row of output.
+*/
+static int deltaparsevtabEof(sqlite3_vtab_cursor *cur){
+  deltaparsevtab_cursor *pCur = (deltaparsevtab_cursor*)cur;
+  return pCur->eOp==DELTAPARSE_OP_EOF;
+}
+
+/*
+** This method is called to "rewind" the deltaparsevtab_cursor object back
+** to the first row of output.  This method is always called at least
+** once prior to any call to deltaparsevtabColumn() or deltaparsevtabRowid() or 
+** deltaparsevtabEof().
+*/
+static int deltaparsevtabFilter(
+  sqlite3_vtab_cursor *pVtabCursor, 
+  int idxNum, const char *idxStr,
+  int argc, sqlite3_value **argv
+){
+  deltaparsevtab_cursor *pCur = (deltaparsevtab_cursor *)pVtabCursor;
+  const char *a;
+  int i = 0;
+  pCur->eOp = DELTAPARSE_OP_ERROR;
+  if( idxNum!=1 ){
+    return SQLITE_OK;
+  }
+  pCur->nDelta = sqlite3_value_bytes(argv[0]);
+  a = (const char*)sqlite3_value_blob(argv[0]);
+  if( pCur->nDelta==0 || a==0 ){
+    return SQLITE_OK;
+  }
+  pCur->aDelta = sqlite3_malloc64( pCur->nDelta+1 );
+  if( pCur->aDelta==0 ){
+    pCur->nDelta = 0;
+    return SQLITE_NOMEM;
+  }
+  memcpy(pCur->aDelta, a, pCur->nDelta);
+  pCur->aDelta[pCur->nDelta] = 0;
+  a = pCur->aDelta;
+  pCur->eOp = DELTAPARSE_OP_SIZE;
+  pCur->a1 = deltaGetInt(&a, &i);
+  if( a[0]!='\n' ){
+    pCur->eOp = DELTAPARSE_OP_ERROR;
+    pCur->a1 = pCur->a2 = 0;
+    pCur->iNext = pCur->nDelta;
+    return SQLITE_OK;
+  }
+  a++;
+  pCur->iNext = (unsigned int)(a - pCur->aDelta);
+  return SQLITE_OK;
+}
+
+/*
+** SQLite will invoke this method one or more times while planning a query
+** that uses the virtual table.  This routine needs to create
+** a query plan for each invocation and compute an estimated cost for that
+** plan.
+*/
+static int deltaparsevtabBestIndex(
+  sqlite3_vtab *tab,
+  sqlite3_index_info *pIdxInfo
+){
+  int i;
+  for(i=0; i<pIdxInfo->nConstraint; i++){
+    if( pIdxInfo->aConstraint[i].iColumn != DELTAPARSEVTAB_DELTA ) continue;
+    if( pIdxInfo->aConstraint[i].usable==0 ) continue;
+    if( pIdxInfo->aConstraint[i].op!=SQLITE_INDEX_CONSTRAINT_EQ ) continue;
+    pIdxInfo->aConstraintUsage[i].argvIndex = 1;
+    pIdxInfo->aConstraintUsage[i].omit = 1;
+    pIdxInfo->estimatedCost = (double)1;
+    pIdxInfo->estimatedRows = 10;
+    pIdxInfo->idxNum = 1;
+    return SQLITE_OK;
+  }
+  pIdxInfo->idxNum = 0;
+  pIdxInfo->estimatedCost = (double)0x7fffffff;
+  pIdxInfo->estimatedRows = 0x7fffffff;
+  return SQLITE_CONSTRAINT;
+}
+
+/*
+** This following structure defines all the methods for the 
+** virtual table.
+*/
+static sqlite3_module deltaparsevtabModule = {
+  /* iVersion    */ 0,
+  /* xCreate     */ 0,
+  /* xConnect    */ deltaparsevtabConnect,
+  /* xBestIndex  */ deltaparsevtabBestIndex,
+  /* xDisconnect */ deltaparsevtabDisconnect,
+  /* xDestroy    */ 0,
+  /* xOpen       */ deltaparsevtabOpen,
+  /* xClose      */ deltaparsevtabClose,
+  /* xFilter     */ deltaparsevtabFilter,
+  /* xNext       */ deltaparsevtabNext,
+  /* xEof        */ deltaparsevtabEof,
+  /* xColumn     */ deltaparsevtabColumn,
+  /* xRowid      */ deltaparsevtabRowid,
+  /* xUpdate     */ 0,
+  /* xBegin      */ 0,
+  /* xSync       */ 0,
+  /* xCommit     */ 0,
+  /* xRollback   */ 0,
+  /* xFindMethod */ 0,
+  /* xRename     */ 0,
+  /* xSavepoint  */ 0,
+  /* xRelease    */ 0,
+  /* xRollbackTo */ 0,
+  /* xShadowName */ 0,
+  /* xIntegrity  */ 0
+};
+
+
+
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_fossildelta_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  static const int enc = SQLITE_UTF8|SQLITE_INNOCUOUS;
+  int rc = SQLITE_OK;
+  SQLITE_EXTENSION_INIT2(pApi);
+  (void)pzErrMsg;  /* Unused parameter */
+  rc = sqlite3_create_function(db, "delta_create", 2, enc, 0,
+                               deltaCreateFunc, 0, 0);
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_function(db, "delta_apply", 2, enc, 0,
+                                 deltaApplyFunc, 0, 0);
+  }
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_function(db, "delta_output_size", 1, enc, 0,
+                                 deltaOutputSizeFunc, 0, 0);
+  }
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_module(db, "delta_parse", &deltaparsevtabModule, 0);
+  }
+  return rc;
+}
diff --git a/ext/misc/fuzzer.c b/ext/misc/fuzzer.c
new file mode 100644
index 0000000000000000000000000000000000000000..92b7c0dae0fea5b3548e6b4aea84763180a46f40
--- /dev/null
+++ b/ext/misc/fuzzer.c
@@ -0,0 +1,1192 @@
+/*
+** 2011 March 24
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** Code for a demonstration virtual table that generates variations
+** on an input word at increasing edit distances from the original.
+**
+** A fuzzer virtual table is created like this:
+**
+**     CREATE VIRTUAL TABLE f USING fuzzer(<fuzzer-data-table>);
+**
+** When it is created, the new fuzzer table must be supplied with the
+** name of a "fuzzer data table", which must reside in the same database
+** file as the new fuzzer table. The fuzzer data table contains the various
+** transformations and their costs that the fuzzer logic uses to generate
+** variations.
+**
+** The fuzzer data table must contain exactly four columns (more precisely,
+** the statement "SELECT * FROM <fuzzer_data_table>" must return records
+** that consist of four columns). It does not matter what the columns are
+** named. 
+**
+** Each row in the fuzzer data table represents a single character
+** transformation. The left most column of the row (column 0) contains an
+** integer value - the identifier of the ruleset to which the transformation
+** rule belongs (see "MULTIPLE RULE SETS" below). The second column of the
+** row (column 0) contains the input character or characters. The third 
+** column contains the output character or characters. And the fourth column
+** contains the integer cost of making the transformation. For example:
+**
+**    CREATE TABLE f_data(ruleset, cFrom, cTo, Cost);
+**    INSERT INTO f_data(ruleset, cFrom, cTo, Cost) VALUES(0, '', 'a', 100);
+**    INSERT INTO f_data(ruleset, cFrom, cTo, Cost) VALUES(0, 'b', '', 87);
+**    INSERT INTO f_data(ruleset, cFrom, cTo, Cost) VALUES(0, 'o', 'oe', 38);
+**    INSERT INTO f_data(ruleset, cFrom, cTo, Cost) VALUES(0, 'oe', 'o', 40);
+**
+** The first row inserted into the fuzzer data table by the SQL script
+** above indicates that the cost of inserting a letter 'a' is 100.  (All 
+** costs are integers.  We recommend that costs be scaled so that the 
+** average cost is around 100.) The second INSERT statement creates a rule
+** saying that the cost of deleting a single letter 'b' is 87.  The third
+** and fourth INSERT statements mean that the cost of transforming a
+** single letter "o" into the two-letter sequence "oe" is 38 and that the
+** cost of transforming "oe" back into "o" is 40.
+**
+** The contents of the fuzzer data table are loaded into main memory when
+** a fuzzer table is first created, and may be internally reloaded by the
+** system at any subsequent time. Therefore, the fuzzer data table should be 
+** populated before the fuzzer table is created and not modified thereafter.
+** If you do need to modify the contents of the fuzzer data table, it is
+** recommended that the associated fuzzer table be dropped, the fuzzer data
+** table edited, and the fuzzer table recreated within a single transaction.
+** Alternatively, the fuzzer data table can be edited then the database
+** connection can be closed and reopened.
+**
+** Once it has been created, the fuzzer table can be queried as follows:
+**
+**    SELECT word, distance FROM f
+**     WHERE word MATCH 'abcdefg'
+**       AND distance<200;
+**
+** This first query outputs the string "abcdefg" and all strings that
+** can be derived from that string by appling the specified transformations.
+** The strings are output together with their total transformation cost
+** (called "distance") and appear in order of increasing cost.  No string
+** is output more than once.  If there are multiple ways to transform the
+** target string into the output string then the lowest cost transform is
+** the one that is returned.  In the example, the search is limited to 
+** strings with a total distance of less than 200.
+**
+** The fuzzer is a read-only table.  Any attempt to DELETE, INSERT, or
+** UPDATE on a fuzzer table will throw an error.
+**
+** It is important to put some kind of a limit on the fuzzer output.  This
+** can be either in the form of a LIMIT clause at the end of the query,
+** or better, a "distance<NNN" constraint where NNN is some number.  The
+** running time and memory requirement is exponential in the value of NNN 
+** so you want to make sure that NNN is not too big.  A value of NNN that
+** is about twice the average transformation cost seems to give good results.
+**
+** The fuzzer table can be useful for tasks such as spelling correction.
+** Suppose there is a second table vocabulary(w) where the w column contains
+** all correctly spelled words.   Let $word be a word you want to look up.
+**
+**   SELECT vocabulary.w FROM f, vocabulary
+**    WHERE f.word MATCH $word
+**      AND f.distance<=200
+**      AND f.word=vocabulary.w
+**    LIMIT 20
+**
+** The query above gives the 20 closest words to the $word being tested.
+** (Note that for good performance, the vocubulary.w column should be
+** indexed.)
+**
+** A similar query can be used to find all words in the dictionary that
+** begin with some prefix $prefix:
+**
+**   SELECT vocabulary.w FROM f, vocabulary
+**    WHERE f.word MATCH $prefix
+**      AND f.distance<=200
+**      AND vocabulary.w BETWEEN f.word AND (f.word || x'F7BFBFBF')
+**    LIMIT 50
+**
+** This last query will show up to 50 words out of the vocabulary that
+** match or nearly match the $prefix.
+**
+** MULTIPLE RULE SETS
+**
+** Normally, the "ruleset" value associated with all character transformations
+** in the fuzzer data table is zero. However, if required, the fuzzer table
+** allows multiple rulesets to be defined. Each query uses only a single
+** ruleset. This allows, for example, a single fuzzer table to support 
+** multiple languages.
+**
+** By default, only the rules from ruleset 0 are used. To specify an 
+** alternative ruleset, a "ruleset = ?" expression must be added to the
+** WHERE clause of a SELECT, where ? is the identifier of the desired 
+** ruleset. For example:
+**
+**   SELECT vocabulary.w FROM f, vocabulary
+**    WHERE f.word MATCH $word
+**      AND f.distance<=200
+**      AND f.word=vocabulary.w
+**      AND f.ruleset=1  -- Specify the ruleset to use here
+**    LIMIT 20
+**
+** If no "ruleset = ?" constraint is specified in the WHERE clause, ruleset 
+** 0 is used.
+**
+** LIMITS
+**
+** The maximum ruleset number is 2147483647.  The maximum length of either
+** of the strings in the second or third column of the fuzzer data table
+** is 50 bytes.  The maximum cost on a rule is 1000.
+*/
+#include "sqlite3ext.h"
+SQLITE_EXTENSION_INIT1
+
+/* If SQLITE_DEBUG is not defined, disable assert statements. */
+#if !defined(NDEBUG) && !defined(SQLITE_DEBUG)
+# define NDEBUG
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <stdio.h>
+
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+
+/*
+** Forward declaration of objects used by this implementation
+*/
+typedef struct fuzzer_vtab fuzzer_vtab;
+typedef struct fuzzer_cursor fuzzer_cursor;
+typedef struct fuzzer_rule fuzzer_rule;
+typedef struct fuzzer_seen fuzzer_seen;
+typedef struct fuzzer_stem fuzzer_stem;
+
+/*
+** Various types.
+**
+** fuzzer_cost is the "cost" of an edit operation.
+**
+** fuzzer_len is the length of a matching string.  
+**
+** fuzzer_ruleid is an ruleset identifier.
+*/
+typedef int fuzzer_cost;
+typedef signed char fuzzer_len;
+typedef int fuzzer_ruleid;
+
+/*
+** Limits
+*/
+#define FUZZER_MX_LENGTH           50   /* Maximum length of a rule string */
+#define FUZZER_MX_RULEID   2147483647   /* Maximum rule ID */
+#define FUZZER_MX_COST           1000   /* Maximum single-rule cost */
+#define FUZZER_MX_OUTPUT_LENGTH   100   /* Maximum length of an output string */
+
+
+/*
+** Each transformation rule is stored as an instance of this object.
+** All rules are kept on a linked list sorted by rCost.
+*/
+struct fuzzer_rule {
+  fuzzer_rule *pNext;         /* Next rule in order of increasing rCost */
+  char *zFrom;                /* Transform from */
+  fuzzer_cost rCost;          /* Cost of this transformation */
+  fuzzer_len nFrom, nTo;      /* Length of the zFrom and zTo strings */
+  fuzzer_ruleid iRuleset;     /* The rule set to which this rule belongs */
+  char zTo[4];                /* Transform to (extra space appended) */
+};
+
+/*
+** A stem object is used to generate variants.  It is also used to record
+** previously generated outputs.
+**
+** Every stem is added to a hash table as it is output.  Generation of
+** duplicate stems is suppressed.
+**
+** Active stems (those that might generate new outputs) are kepts on a linked
+** list sorted by increasing cost.  The cost is the sum of rBaseCost and
+** pRule->rCost.
+*/
+struct fuzzer_stem {
+  char *zBasis;              /* Word being fuzzed */
+  const fuzzer_rule *pRule;  /* Current rule to apply */
+  fuzzer_stem *pNext;        /* Next stem in rCost order */
+  fuzzer_stem *pHash;        /* Next stem with same hash on zBasis */
+  fuzzer_cost rBaseCost;     /* Base cost of getting to zBasis */
+  fuzzer_cost rCostX;        /* Precomputed rBaseCost + pRule->rCost */
+  fuzzer_len nBasis;         /* Length of the zBasis string */
+  fuzzer_len n;              /* Apply pRule at this character offset */
+};
+
+/* 
+** A fuzzer virtual-table object 
+*/
+struct fuzzer_vtab {
+  sqlite3_vtab base;         /* Base class - must be first */
+  char *zClassName;          /* Name of this class.  Default: "fuzzer" */
+  fuzzer_rule *pRule;        /* All active rules in this fuzzer */
+  int nCursor;               /* Number of active cursors */
+};
+
+#define FUZZER_HASH  4001    /* Hash table size */
+#define FUZZER_NQUEUE  20    /* Number of slots on the stem queue */
+
+/* A fuzzer cursor object */
+struct fuzzer_cursor {
+  sqlite3_vtab_cursor base;  /* Base class - must be first */
+  sqlite3_int64 iRowid;      /* The rowid of the current word */
+  fuzzer_vtab *pVtab;        /* The virtual table this cursor belongs to */
+  fuzzer_cost rLimit;        /* Maximum cost of any term */
+  fuzzer_stem *pStem;        /* Stem with smallest rCostX */
+  fuzzer_stem *pDone;        /* Stems already processed to completion */
+  fuzzer_stem *aQueue[FUZZER_NQUEUE];  /* Queue of stems with higher rCostX */
+  int mxQueue;               /* Largest used index in aQueue[] */
+  char *zBuf;                /* Temporary use buffer */
+  int nBuf;                  /* Bytes allocated for zBuf */
+  int nStem;                 /* Number of stems allocated */
+  int iRuleset;              /* Only process rules from this ruleset */
+  fuzzer_rule nullRule;      /* Null rule used first */
+  fuzzer_stem *apHash[FUZZER_HASH]; /* Hash of previously generated terms */
+};
+
+/*
+** The two input rule lists are both sorted in order of increasing
+** cost.  Merge them together into a single list, sorted by cost, and
+** return a pointer to the head of that list.
+*/
+static fuzzer_rule *fuzzerMergeRules(fuzzer_rule *pA, fuzzer_rule *pB){
+  fuzzer_rule head;
+  fuzzer_rule *pTail;
+
+  pTail =  &head;
+  while( pA && pB ){
+    if( pA->rCost<=pB->rCost ){
+      pTail->pNext = pA;
+      pTail = pA;
+      pA = pA->pNext;
+    }else{
+      pTail->pNext = pB;
+      pTail = pB;
+      pB = pB->pNext;
+    }
+  }
+  if( pA==0 ){
+    pTail->pNext = pB;
+  }else{
+    pTail->pNext = pA;
+  }
+  return head.pNext;
+}
+
+/*
+** Statement pStmt currently points to a row in the fuzzer data table. This
+** function allocates and populates a fuzzer_rule structure according to
+** the content of the row.
+**
+** If successful, *ppRule is set to point to the new object and SQLITE_OK
+** is returned. Otherwise, *ppRule is zeroed, *pzErr may be set to point
+** to an error message and an SQLite error code returned.
+*/
+static int fuzzerLoadOneRule(
+  fuzzer_vtab *p,                 /* Fuzzer virtual table handle */
+  sqlite3_stmt *pStmt,            /* Base rule on statements current row */
+  fuzzer_rule **ppRule,           /* OUT: New rule object */
+  char **pzErr                    /* OUT: Error message */
+){
+  sqlite3_int64 iRuleset = sqlite3_column_int64(pStmt, 0);
+  const char *zFrom = (const char *)sqlite3_column_text(pStmt, 1);
+  const char *zTo = (const char *)sqlite3_column_text(pStmt, 2);
+  int nCost = sqlite3_column_int(pStmt, 3);
+
+  int rc = SQLITE_OK;             /* Return code */
+  int nFrom;                      /* Size of string zFrom, in bytes */
+  int nTo;                        /* Size of string zTo, in bytes */
+  fuzzer_rule *pRule = 0;         /* New rule object to return */
+
+  if( zFrom==0 ) zFrom = "";
+  if( zTo==0 ) zTo = "";
+  nFrom = (int)strlen(zFrom);
+  nTo = (int)strlen(zTo);
+
+  /* Silently ignore null transformations */
+  if( strcmp(zFrom, zTo)==0 ){
+    *ppRule = 0;
+    return SQLITE_OK;
+  }
+
+  if( nCost<=0 || nCost>FUZZER_MX_COST ){
+    *pzErr = sqlite3_mprintf("%s: cost must be between 1 and %d", 
+        p->zClassName, FUZZER_MX_COST
+    );
+    rc = SQLITE_ERROR;
+  }else
+  if( nFrom>FUZZER_MX_LENGTH || nTo>FUZZER_MX_LENGTH ){
+    *pzErr = sqlite3_mprintf("%s: maximum string length is %d", 
+        p->zClassName, FUZZER_MX_LENGTH
+    );
+    rc = SQLITE_ERROR;    
+  }else
+  if( iRuleset<0 || iRuleset>FUZZER_MX_RULEID ){
+    *pzErr = sqlite3_mprintf("%s: ruleset must be between 0 and %d", 
+        p->zClassName, FUZZER_MX_RULEID
+    );
+    rc = SQLITE_ERROR;    
+  }else{
+
+    pRule = sqlite3_malloc64( sizeof(*pRule) + nFrom + nTo );
+    if( pRule==0 ){
+      rc = SQLITE_NOMEM;
+    }else{
+      memset(pRule, 0, sizeof(*pRule));
+      pRule->zFrom = pRule->zTo;
+      pRule->zFrom += nTo + 1;
+      pRule->nFrom = (fuzzer_len)nFrom;
+      memcpy(pRule->zFrom, zFrom, nFrom+1);
+      memcpy(pRule->zTo, zTo, nTo+1);
+      pRule->nTo = (fuzzer_len)nTo;
+      pRule->rCost = nCost;
+      pRule->iRuleset = (int)iRuleset;
+    }
+  }
+
+  *ppRule = pRule;
+  return rc;
+}
+
+/*
+** Load the content of the fuzzer data table into memory.
+*/
+static int fuzzerLoadRules(
+  sqlite3 *db,                    /* Database handle */
+  fuzzer_vtab *p,                 /* Virtual fuzzer table to configure */
+  const char *zDb,                /* Database containing rules data */
+  const char *zData,              /* Table containing rules data */
+  char **pzErr                    /* OUT: Error message */
+){
+  int rc = SQLITE_OK;             /* Return code */
+  char *zSql;                     /* SELECT used to read from rules table */
+  fuzzer_rule *pHead = 0;
+
+  zSql = sqlite3_mprintf("SELECT * FROM %Q.%Q", zDb, zData);
+  if( zSql==0 ){
+    rc = SQLITE_NOMEM;
+  }else{
+    int rc2;                      /* finalize() return code */
+    sqlite3_stmt *pStmt = 0;
+    rc = sqlite3_prepare_v2(db, zSql, -1, &pStmt, 0);
+    if( rc!=SQLITE_OK ){
+      *pzErr = sqlite3_mprintf("%s: %s", p->zClassName, sqlite3_errmsg(db));
+    }else if( sqlite3_column_count(pStmt)!=4 ){
+      *pzErr = sqlite3_mprintf("%s: %s has %d columns, expected 4",
+          p->zClassName, zData, sqlite3_column_count(pStmt)
+      );
+      rc = SQLITE_ERROR;
+    }else{
+      while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pStmt) ){
+        fuzzer_rule *pRule = 0;
+        rc = fuzzerLoadOneRule(p, pStmt, &pRule, pzErr);
+        if( pRule ){
+          pRule->pNext = pHead;
+          pHead = pRule;
+        }
+      }
+    }
+    rc2 = sqlite3_finalize(pStmt);
+    if( rc==SQLITE_OK ) rc = rc2;
+  }
+  sqlite3_free(zSql);
+
+  /* All rules are now in a singly linked list starting at pHead. This
+  ** block sorts them by cost and then sets fuzzer_vtab.pRule to point to 
+  ** point to the head of the sorted list.
+  */
+  if( rc==SQLITE_OK ){
+    unsigned int i;
+    fuzzer_rule *pX;
+    fuzzer_rule *a[15];
+    for(i=0; i<sizeof(a)/sizeof(a[0]); i++) a[i] = 0;
+    while( (pX = pHead)!=0 ){
+      pHead = pX->pNext;
+      pX->pNext = 0;
+      for(i=0; a[i] && i<sizeof(a)/sizeof(a[0])-1; i++){
+        pX = fuzzerMergeRules(a[i], pX);
+        a[i] = 0;
+      }
+      a[i] = fuzzerMergeRules(a[i], pX);
+    }
+    for(pX=a[0], i=1; i<sizeof(a)/sizeof(a[0]); i++){
+      pX = fuzzerMergeRules(a[i], pX);
+    }
+    p->pRule = fuzzerMergeRules(p->pRule, pX);
+  }else{
+    /* An error has occurred. Setting p->pRule to point to the head of the
+    ** allocated list ensures that the list will be cleaned up in this case.
+    */
+    assert( p->pRule==0 );
+    p->pRule = pHead;
+  }
+
+  return rc;
+}
+
+/*
+** This function converts an SQL quoted string into an unquoted string
+** and returns a pointer to a buffer allocated using sqlite3_malloc() 
+** containing the result. The caller should eventually free this buffer
+** using sqlite3_free.
+**
+** Examples:
+**
+**     "abc"   becomes   abc
+**     'xyz'   becomes   xyz
+**     [pqr]   becomes   pqr
+**     `mno`   becomes   mno
+*/
+static char *fuzzerDequote(const char *zIn){
+  sqlite3_int64 nIn;              /* Size of input string, in bytes */
+  char *zOut;                     /* Output (dequoted) string */
+
+  nIn = strlen(zIn);
+  zOut = sqlite3_malloc64(nIn+1);
+  if( zOut ){
+    char q = zIn[0];              /* Quote character (if any ) */
+
+    if( q!='[' && q!= '\'' && q!='"' && q!='`' ){
+      memcpy(zOut, zIn, (size_t)(nIn+1));
+    }else{
+      int iOut = 0;               /* Index of next byte to write to output */
+      int iIn;                    /* Index of next byte to read from input */
+
+      if( q=='[' ) q = ']';
+      for(iIn=1; iIn<nIn; iIn++){
+        if( zIn[iIn]==q ) iIn++;
+        zOut[iOut++] = zIn[iIn];
+      }
+    }
+    assert( (int)strlen(zOut)<=nIn );
+  }
+  return zOut;
+}
+
+/*
+** xDisconnect/xDestroy method for the fuzzer module.
+*/
+static int fuzzerDisconnect(sqlite3_vtab *pVtab){
+  fuzzer_vtab *p = (fuzzer_vtab*)pVtab;
+  assert( p->nCursor==0 );
+  while( p->pRule ){
+    fuzzer_rule *pRule = p->pRule;
+    p->pRule = pRule->pNext;
+    sqlite3_free(pRule);
+  }
+  sqlite3_free(p);
+  return SQLITE_OK;
+}
+
+/*
+** xConnect/xCreate method for the fuzzer module. Arguments are:
+**
+**   argv[0]   -> module name  ("fuzzer")
+**   argv[1]   -> database name
+**   argv[2]   -> table name
+**   argv[3]   -> fuzzer rule table name
+*/
+static int fuzzerConnect(
+  sqlite3 *db,
+  void *pAux,
+  int argc, const char *const*argv,
+  sqlite3_vtab **ppVtab,
+  char **pzErr
+){
+  int rc = SQLITE_OK;             /* Return code */
+  fuzzer_vtab *pNew = 0;          /* New virtual table */
+  const char *zModule = argv[0];
+  const char *zDb = argv[1];
+
+  if( argc!=4 ){
+    *pzErr = sqlite3_mprintf(
+        "%s: wrong number of CREATE VIRTUAL TABLE arguments", zModule
+    );
+    rc = SQLITE_ERROR;
+  }else{
+    sqlite3_int64 nModule;        /* Length of zModule, in bytes */
+
+    nModule = strlen(zModule);
+    pNew = sqlite3_malloc64( sizeof(*pNew) + nModule + 1);
+    if( pNew==0 ){
+      rc = SQLITE_NOMEM;
+    }else{
+      char *zTab;                 /* Dequoted name of fuzzer data table */
+
+      memset(pNew, 0, sizeof(*pNew));
+      pNew->zClassName = (char*)&pNew[1];
+      memcpy(pNew->zClassName, zModule, (size_t)(nModule+1));
+
+      zTab = fuzzerDequote(argv[3]);
+      if( zTab==0 ){
+        rc = SQLITE_NOMEM;
+      }else{
+        rc = fuzzerLoadRules(db, pNew, zDb, zTab, pzErr);
+        sqlite3_free(zTab);
+      }
+
+      if( rc==SQLITE_OK ){
+        rc = sqlite3_declare_vtab(db, "CREATE TABLE x(word,distance,ruleset)");
+      }
+      if( rc!=SQLITE_OK ){
+        fuzzerDisconnect((sqlite3_vtab *)pNew);
+        pNew = 0;
+      }else{
+        sqlite3_vtab_config(db, SQLITE_VTAB_INNOCUOUS);
+      }
+    }
+  }
+
+  *ppVtab = (sqlite3_vtab *)pNew;
+  return rc;
+}
+
+/*
+** Open a new fuzzer cursor.
+*/
+static int fuzzerOpen(sqlite3_vtab *pVTab, sqlite3_vtab_cursor **ppCursor){
+  fuzzer_vtab *p = (fuzzer_vtab*)pVTab;
+  fuzzer_cursor *pCur;
+  pCur = sqlite3_malloc( sizeof(*pCur) );
+  if( pCur==0 ) return SQLITE_NOMEM;
+  memset(pCur, 0, sizeof(*pCur));
+  pCur->pVtab = p;
+  *ppCursor = &pCur->base;
+  p->nCursor++;
+  return SQLITE_OK;
+}
+
+/*
+** Free all stems in a list.
+*/
+static void fuzzerClearStemList(fuzzer_stem *pStem){
+  while( pStem ){
+    fuzzer_stem *pNext = pStem->pNext;
+    sqlite3_free(pStem);
+    pStem = pNext;
+  }
+}
+
+/*
+** Free up all the memory allocated by a cursor.  Set it rLimit to 0
+** to indicate that it is at EOF.
+*/
+static void fuzzerClearCursor(fuzzer_cursor *pCur, int clearHash){
+  int i;
+  fuzzerClearStemList(pCur->pStem);
+  fuzzerClearStemList(pCur->pDone);
+  for(i=0; i<FUZZER_NQUEUE; i++) fuzzerClearStemList(pCur->aQueue[i]);
+  pCur->rLimit = (fuzzer_cost)0;
+  if( clearHash && pCur->nStem ){
+    pCur->mxQueue = 0;
+    pCur->pStem = 0;
+    pCur->pDone = 0;
+    memset(pCur->aQueue, 0, sizeof(pCur->aQueue));
+    memset(pCur->apHash, 0, sizeof(pCur->apHash));
+  }
+  pCur->nStem = 0;
+}
+
+/*
+** Close a fuzzer cursor.
+*/
+static int fuzzerClose(sqlite3_vtab_cursor *cur){
+  fuzzer_cursor *pCur = (fuzzer_cursor *)cur;
+  fuzzerClearCursor(pCur, 0);
+  sqlite3_free(pCur->zBuf);
+  pCur->pVtab->nCursor--;
+  sqlite3_free(pCur);
+  return SQLITE_OK;
+}
+
+/*
+** Compute the current output term for a fuzzer_stem.
+*/
+static int fuzzerRender(
+  fuzzer_stem *pStem,   /* The stem to be rendered */
+  char **pzBuf,         /* Write results into this buffer.  realloc if needed */
+  int *pnBuf            /* Size of the buffer */
+){
+  const fuzzer_rule *pRule = pStem->pRule;
+  int n;                          /* Size of output term without nul-term */
+  char *z;                        /* Buffer to assemble output term in */
+
+  n = pStem->nBasis + pRule->nTo - pRule->nFrom;
+  if( (*pnBuf)<n+1 ){
+    (*pzBuf) = sqlite3_realloc((*pzBuf), n+100);
+    if( (*pzBuf)==0 ) return SQLITE_NOMEM;
+    (*pnBuf) = n+100;
+  }
+  n = pStem->n;
+  z = *pzBuf;
+  if( n<0 ){
+    memcpy(z, pStem->zBasis, pStem->nBasis+1);
+  }else{
+    memcpy(z, pStem->zBasis, n);
+    memcpy(&z[n], pRule->zTo, pRule->nTo);
+    memcpy(&z[n+pRule->nTo], &pStem->zBasis[n+pRule->nFrom], 
+           pStem->nBasis-n-pRule->nFrom+1);
+  }
+
+  assert( z[pStem->nBasis + pRule->nTo - pRule->nFrom]==0 );
+  return SQLITE_OK;
+}
+
+/*
+** Compute a hash on zBasis.
+*/
+static unsigned int fuzzerHash(const char *z){
+  unsigned int h = 0;
+  while( *z ){ h = (h<<3) ^ (h>>29) ^ *(z++); }
+  return h % FUZZER_HASH;
+}
+
+/*
+** Current cost of a stem
+*/
+static fuzzer_cost fuzzerCost(fuzzer_stem *pStem){
+  return pStem->rCostX = pStem->rBaseCost + pStem->pRule->rCost;
+}
+
+#if 0
+/*
+** Print a description of a fuzzer_stem on stderr.
+*/
+static void fuzzerStemPrint(
+  const char *zPrefix,
+  fuzzer_stem *pStem,
+  const char *zSuffix
+){
+  if( pStem->n<0 ){
+    fprintf(stderr, "%s[%s](%d)-->self%s",
+       zPrefix,
+       pStem->zBasis, pStem->rBaseCost,
+       zSuffix
+    );
+  }else{
+    char *zBuf = 0;
+    int nBuf = 0;
+    if( fuzzerRender(pStem, &zBuf, &nBuf)!=SQLITE_OK ) return;
+    fprintf(stderr, "%s[%s](%d)-->{%s}(%d)%s",
+      zPrefix,
+      pStem->zBasis, pStem->rBaseCost, zBuf, pStem->,
+      zSuffix
+    );
+    sqlite3_free(zBuf);
+  }
+}
+#endif
+
+/*
+** Return 1 if the string to which the cursor is point has already
+** been emitted.  Return 0 if not.  Return -1 on a memory allocation
+** failures.
+*/
+static int fuzzerSeen(fuzzer_cursor *pCur, fuzzer_stem *pStem){
+  unsigned int h;
+  fuzzer_stem *pLookup;
+
+  if( fuzzerRender(pStem, &pCur->zBuf, &pCur->nBuf)==SQLITE_NOMEM ){
+    return -1;
+  }
+  h = fuzzerHash(pCur->zBuf);
+  pLookup = pCur->apHash[h];
+  while( pLookup && strcmp(pLookup->zBasis, pCur->zBuf)!=0 ){
+    pLookup = pLookup->pHash;
+  }
+  return pLookup!=0;
+}
+
+/*
+** If argument pRule is NULL, this function returns false.
+**
+** Otherwise, it returns true if rule pRule should be skipped. A rule 
+** should be skipped if it does not belong to rule-set iRuleset, or if
+** applying it to stem pStem would create a string longer than 
+** FUZZER_MX_OUTPUT_LENGTH bytes.
+*/
+static int fuzzerSkipRule(
+  const fuzzer_rule *pRule,       /* Determine whether or not to skip this */
+  fuzzer_stem *pStem,             /* Stem rule may be applied to */
+  int iRuleset                    /* Rule-set used by the current query */
+){
+  return pRule && (
+      (pRule->iRuleset!=iRuleset)
+   || (pStem->nBasis + pRule->nTo - pRule->nFrom)>FUZZER_MX_OUTPUT_LENGTH
+  );
+}
+
+/*
+** Advance a fuzzer_stem to its next value.   Return 0 if there are
+** no more values that can be generated by this fuzzer_stem.  Return
+** -1 on a memory allocation failure.
+*/
+static int fuzzerAdvance(fuzzer_cursor *pCur, fuzzer_stem *pStem){
+  const fuzzer_rule *pRule;
+  while( (pRule = pStem->pRule)!=0 ){
+    assert( pRule==&pCur->nullRule || pRule->iRuleset==pCur->iRuleset );
+    while( pStem->n < pStem->nBasis - pRule->nFrom ){
+      pStem->n++;
+      if( pRule->nFrom==0
+       || memcmp(&pStem->zBasis[pStem->n], pRule->zFrom, pRule->nFrom)==0
+      ){
+        /* Found a rewrite case.  Make sure it is not a duplicate */
+        int rc = fuzzerSeen(pCur, pStem);
+        if( rc<0 ) return -1;
+        if( rc==0 ){
+          fuzzerCost(pStem);
+          return 1;
+        }
+      }
+    }
+    pStem->n = -1;
+    do{
+      pRule = pRule->pNext;
+    }while( fuzzerSkipRule(pRule, pStem, pCur->iRuleset) );
+    pStem->pRule = pRule;
+    if( pRule && fuzzerCost(pStem)>pCur->rLimit ) pStem->pRule = 0;
+  }
+  return 0;
+}
+
+/*
+** The two input stem lists are both sorted in order of increasing
+** rCostX.  Merge them together into a single list, sorted by rCostX, and
+** return a pointer to the head of that new list.
+*/
+static fuzzer_stem *fuzzerMergeStems(fuzzer_stem *pA, fuzzer_stem *pB){
+  fuzzer_stem head;
+  fuzzer_stem *pTail;
+
+  pTail =  &head;
+  while( pA && pB ){
+    if( pA->rCostX<=pB->rCostX ){
+      pTail->pNext = pA;
+      pTail = pA;
+      pA = pA->pNext;
+    }else{
+      pTail->pNext = pB;
+      pTail = pB;
+      pB = pB->pNext;
+    }
+  }
+  if( pA==0 ){
+    pTail->pNext = pB;
+  }else{
+    pTail->pNext = pA;
+  }
+  return head.pNext;
+}
+
+/*
+** Load pCur->pStem with the lowest-cost stem.  Return a pointer
+** to the lowest-cost stem.
+*/
+static fuzzer_stem *fuzzerLowestCostStem(fuzzer_cursor *pCur){
+  fuzzer_stem *pBest, *pX;
+  int iBest;
+  int i;
+
+  if( pCur->pStem==0 ){
+    iBest = -1;
+    pBest = 0;
+    for(i=0; i<=pCur->mxQueue; i++){
+      pX = pCur->aQueue[i];
+      if( pX==0 ) continue;
+      if( pBest==0 || pBest->rCostX>pX->rCostX ){
+        pBest = pX;
+        iBest = i;
+      }
+    } 
+    if( pBest ){
+      pCur->aQueue[iBest] = pBest->pNext;
+      pBest->pNext = 0;
+      pCur->pStem = pBest;
+    }
+  }
+  return pCur->pStem;
+}
+
+/*
+** Insert pNew into queue of pending stems.  Then find the stem
+** with the lowest rCostX and move it into pCur->pStem.
+** list.  The insert is done such the pNew is in the correct order
+** according to fuzzer_stem.zBaseCost+fuzzer_stem.pRule->rCost.
+*/
+static fuzzer_stem *fuzzerInsert(fuzzer_cursor *pCur, fuzzer_stem *pNew){
+  fuzzer_stem *pX;
+  int i;
+
+  /* If pCur->pStem exists and is greater than pNew, then make pNew
+  ** the new pCur->pStem and insert the old pCur->pStem instead.
+  */
+  if( (pX = pCur->pStem)!=0 && pX->rCostX>pNew->rCostX ){
+    pNew->pNext = 0;
+    pCur->pStem = pNew;
+    pNew = pX;
+  }
+
+  /* Insert the new value */
+  pNew->pNext = 0;
+  pX = pNew;
+  for(i=0; i<=pCur->mxQueue; i++){
+    if( pCur->aQueue[i] ){
+      pX = fuzzerMergeStems(pX, pCur->aQueue[i]);
+      pCur->aQueue[i] = 0;
+    }else{
+      pCur->aQueue[i] = pX;
+      break;
+    }
+  }
+  if( i>pCur->mxQueue ){
+    if( i<FUZZER_NQUEUE ){
+      pCur->mxQueue = i;
+      pCur->aQueue[i] = pX;
+    }else{
+      assert( pCur->mxQueue==FUZZER_NQUEUE-1 );
+      pX = fuzzerMergeStems(pX, pCur->aQueue[FUZZER_NQUEUE-1]);
+      pCur->aQueue[FUZZER_NQUEUE-1] = pX;
+    }
+  }
+
+  return fuzzerLowestCostStem(pCur);
+}
+
+/*
+** Allocate a new fuzzer_stem.  Add it to the hash table but do not
+** link it into either the pCur->pStem or pCur->pDone lists.
+*/
+static fuzzer_stem *fuzzerNewStem(
+  fuzzer_cursor *pCur,
+  const char *zWord,
+  fuzzer_cost rBaseCost
+){
+  fuzzer_stem *pNew;
+  fuzzer_rule *pRule;
+  unsigned int h;
+
+  pNew = sqlite3_malloc64( sizeof(*pNew) + strlen(zWord) + 1 );
+  if( pNew==0 ) return 0;
+  memset(pNew, 0, sizeof(*pNew));
+  pNew->zBasis = (char*)&pNew[1];
+  pNew->nBasis = (fuzzer_len)strlen(zWord);
+  memcpy(pNew->zBasis, zWord, pNew->nBasis+1);
+  pRule = pCur->pVtab->pRule;
+  while( fuzzerSkipRule(pRule, pNew, pCur->iRuleset) ){
+    pRule = pRule->pNext;
+  }
+  pNew->pRule = pRule;
+  pNew->n = -1;
+  pNew->rBaseCost = pNew->rCostX = rBaseCost;
+  h = fuzzerHash(pNew->zBasis);
+  pNew->pHash = pCur->apHash[h];
+  pCur->apHash[h] = pNew;
+  pCur->nStem++;
+  return pNew;
+}
+
+
+/*
+** Advance a cursor to its next row of output
+*/
+static int fuzzerNext(sqlite3_vtab_cursor *cur){
+  fuzzer_cursor *pCur = (fuzzer_cursor*)cur;
+  int rc;
+  fuzzer_stem *pStem, *pNew;
+
+  pCur->iRowid++;
+
+  /* Use the element the cursor is currently point to to create
+  ** a new stem and insert the new stem into the priority queue.
+  */
+  pStem = pCur->pStem;
+  if( pStem->rCostX>0 ){
+    rc = fuzzerRender(pStem, &pCur->zBuf, &pCur->nBuf);
+    if( rc==SQLITE_NOMEM ) return SQLITE_NOMEM;
+    pNew = fuzzerNewStem(pCur, pCur->zBuf, pStem->rCostX);
+    if( pNew ){
+      if( fuzzerAdvance(pCur, pNew)==0 ){
+        pNew->pNext = pCur->pDone;
+        pCur->pDone = pNew;
+      }else{
+        if( fuzzerInsert(pCur, pNew)==pNew ){
+          return SQLITE_OK;
+        }
+      }
+    }else{
+      return SQLITE_NOMEM;
+    }
+  }
+
+  /* Adjust the priority queue so that the first element of the
+  ** stem list is the next lowest cost word.
+  */
+  while( (pStem = pCur->pStem)!=0 ){
+    int res = fuzzerAdvance(pCur, pStem);
+    if( res<0 ){
+      return SQLITE_NOMEM;
+    }else if( res>0 ){
+      pCur->pStem = 0;
+      pStem = fuzzerInsert(pCur, pStem);
+      if( (rc = fuzzerSeen(pCur, pStem))!=0 ){
+        if( rc<0 ) return SQLITE_NOMEM;
+        continue;
+      }
+      return SQLITE_OK;  /* New word found */
+    }
+    pCur->pStem = 0;
+    pStem->pNext = pCur->pDone;
+    pCur->pDone = pStem;
+    if( fuzzerLowestCostStem(pCur) ){
+      rc = fuzzerSeen(pCur, pCur->pStem);
+      if( rc<0 ) return SQLITE_NOMEM;
+      if( rc==0 ){
+        return SQLITE_OK;
+      }
+    }
+  }
+
+  /* Reach this point only if queue has been exhausted and there is
+  ** nothing left to be output. */
+  pCur->rLimit = (fuzzer_cost)0;
+  return SQLITE_OK;
+}
+
+/*
+** Called to "rewind" a cursor back to the beginning so that
+** it starts its output over again.  Always called at least once
+** prior to any fuzzerColumn, fuzzerRowid, or fuzzerEof call.
+*/
+static int fuzzerFilter(
+  sqlite3_vtab_cursor *pVtabCursor, 
+  int idxNum, const char *idxStr,
+  int argc, sqlite3_value **argv
+){
+  fuzzer_cursor *pCur = (fuzzer_cursor *)pVtabCursor;
+  const char *zWord = "";
+  fuzzer_stem *pStem;
+  int idx;
+
+  fuzzerClearCursor(pCur, 1);
+  pCur->rLimit = 2147483647;
+  idx = 0;
+  if( idxNum & 1 ){
+    zWord = (const char*)sqlite3_value_text(argv[0]);
+    idx++;
+  }
+  if( idxNum & 2 ){
+    pCur->rLimit = (fuzzer_cost)sqlite3_value_int(argv[idx]);
+    idx++;
+  }
+  if( idxNum & 4 ){
+    pCur->iRuleset = (fuzzer_cost)sqlite3_value_int(argv[idx]);
+    idx++;
+  }
+  pCur->nullRule.pNext = pCur->pVtab->pRule;
+  pCur->nullRule.rCost = 0;
+  pCur->nullRule.nFrom = 0;
+  pCur->nullRule.nTo = 0;
+  pCur->nullRule.zFrom = "";
+  pCur->iRowid = 1;
+  assert( pCur->pStem==0 );
+
+  /* If the query term is longer than FUZZER_MX_OUTPUT_LENGTH bytes, this
+  ** query will return zero rows.  */
+  if( (int)strlen(zWord)<FUZZER_MX_OUTPUT_LENGTH ){
+    pCur->pStem = pStem = fuzzerNewStem(pCur, zWord, (fuzzer_cost)0);
+    if( pStem==0 ) return SQLITE_NOMEM;
+    pStem->pRule = &pCur->nullRule;
+    pStem->n = pStem->nBasis;
+  }else{
+    pCur->rLimit = 0;
+  }
+
+  return SQLITE_OK;
+}
+
+/*
+** Only the word and distance columns have values.  All other columns
+** return NULL
+*/
+static int fuzzerColumn(sqlite3_vtab_cursor *cur, sqlite3_context *ctx, int i){
+  fuzzer_cursor *pCur = (fuzzer_cursor*)cur;
+  if( i==0 ){
+    /* the "word" column */
+    if( fuzzerRender(pCur->pStem, &pCur->zBuf, &pCur->nBuf)==SQLITE_NOMEM ){
+      return SQLITE_NOMEM;
+    }
+    sqlite3_result_text(ctx, pCur->zBuf, -1, SQLITE_TRANSIENT);
+  }else if( i==1 ){
+    /* the "distance" column */
+    sqlite3_result_int(ctx, pCur->pStem->rCostX);
+  }else{
+    /* All other columns are NULL */
+    sqlite3_result_null(ctx);
+  }
+  return SQLITE_OK;
+}
+
+/*
+** The rowid.
+*/
+static int fuzzerRowid(sqlite3_vtab_cursor *cur, sqlite_int64 *pRowid){
+  fuzzer_cursor *pCur = (fuzzer_cursor*)cur;
+  *pRowid = pCur->iRowid;
+  return SQLITE_OK;
+}
+
+/*
+** When the fuzzer_cursor.rLimit value is 0 or less, that is a signal
+** that the cursor has nothing more to output.
+*/
+static int fuzzerEof(sqlite3_vtab_cursor *cur){
+  fuzzer_cursor *pCur = (fuzzer_cursor*)cur;
+  return pCur->rLimit<=(fuzzer_cost)0;
+}
+
+/*
+** Search for terms of these forms:
+**
+**   (A)    word MATCH $str
+**   (B1)   distance < $value
+**   (B2)   distance <= $value
+**   (C)    ruleid == $ruleid
+**
+** The distance< and distance<= are both treated as distance<=.
+** The query plan number is a bit vector:
+**
+**   bit 1:   Term of the form (A) found
+**   bit 2:   Term like (B1) or (B2) found
+**   bit 3:   Term like (C) found
+**
+** If bit-1 is set, $str is always in filter.argv[0].  If bit-2 is set
+** then $value is in filter.argv[0] if bit-1 is clear and is in 
+** filter.argv[1] if bit-1 is set.  If bit-3 is set, then $ruleid is
+** in filter.argv[0] if bit-1 and bit-2 are both zero, is in
+** filter.argv[1] if exactly one of bit-1 and bit-2 are set, and is in
+** filter.argv[2] if both bit-1 and bit-2 are set.
+*/
+static int fuzzerBestIndex(sqlite3_vtab *tab, sqlite3_index_info *pIdxInfo){
+  int iPlan = 0;
+  int iDistTerm = -1;
+  int iRulesetTerm = -1;
+  int i;
+  int seenMatch = 0;
+  const struct sqlite3_index_constraint *pConstraint;
+  double rCost = 1e12;
+
+  pConstraint = pIdxInfo->aConstraint;
+  for(i=0; i<pIdxInfo->nConstraint; i++, pConstraint++){
+    if( pConstraint->iColumn==0
+     && pConstraint->op==SQLITE_INDEX_CONSTRAINT_MATCH ){
+      seenMatch = 1;
+    }
+    if( pConstraint->usable==0 ) continue;
+    if( (iPlan & 1)==0 
+     && pConstraint->iColumn==0
+     && pConstraint->op==SQLITE_INDEX_CONSTRAINT_MATCH
+    ){
+      iPlan |= 1;
+      pIdxInfo->aConstraintUsage[i].argvIndex = 1;
+      pIdxInfo->aConstraintUsage[i].omit = 1;
+      rCost /= 1e6;
+    }
+    if( (iPlan & 2)==0
+     && pConstraint->iColumn==1
+     && (pConstraint->op==SQLITE_INDEX_CONSTRAINT_LT
+           || pConstraint->op==SQLITE_INDEX_CONSTRAINT_LE)
+    ){
+      iPlan |= 2;
+      iDistTerm = i;
+      rCost /= 10.0;
+    }
+    if( (iPlan & 4)==0
+     && pConstraint->iColumn==2
+     && pConstraint->op==SQLITE_INDEX_CONSTRAINT_EQ
+    ){
+      iPlan |= 4;
+      pIdxInfo->aConstraintUsage[i].omit = 1;
+      iRulesetTerm = i;
+      rCost /= 10.0;
+    }
+  }
+  if( iPlan & 2 ){
+    pIdxInfo->aConstraintUsage[iDistTerm].argvIndex = 1+((iPlan&1)!=0);
+  }
+  if( iPlan & 4 ){
+    int idx = 1;
+    if( iPlan & 1 ) idx++;
+    if( iPlan & 2 ) idx++;
+    pIdxInfo->aConstraintUsage[iRulesetTerm].argvIndex = idx;
+  }
+  pIdxInfo->idxNum = iPlan;
+  if( pIdxInfo->nOrderBy==1
+   && pIdxInfo->aOrderBy[0].iColumn==1
+   && pIdxInfo->aOrderBy[0].desc==0
+  ){
+    pIdxInfo->orderByConsumed = 1;
+  }
+  if( seenMatch && (iPlan&1)==0 ) rCost = 1e99;
+  pIdxInfo->estimatedCost = rCost;
+   
+  return SQLITE_OK;
+}
+
+/*
+** A virtual table module that implements the "fuzzer".
+*/
+static sqlite3_module fuzzerModule = {
+  0,                           /* iVersion */
+  fuzzerConnect,
+  fuzzerConnect,
+  fuzzerBestIndex,
+  fuzzerDisconnect, 
+  fuzzerDisconnect,
+  fuzzerOpen,                  /* xOpen - open a cursor */
+  fuzzerClose,                 /* xClose - close a cursor */
+  fuzzerFilter,                /* xFilter - configure scan constraints */
+  fuzzerNext,                  /* xNext - advance a cursor */
+  fuzzerEof,                   /* xEof - check for end of scan */
+  fuzzerColumn,                /* xColumn - read data */
+  fuzzerRowid,                 /* xRowid - read data */
+  0,                           /* xUpdate */
+  0,                           /* xBegin */
+  0,                           /* xSync */
+  0,                           /* xCommit */
+  0,                           /* xRollback */
+  0,                           /* xFindMethod */
+  0,                           /* xRename */
+  0,                           /* xSavepoint */
+  0,                           /* xRelease */
+  0,                           /* xRollbackTo */
+  0,                           /* xShadowName */
+  0                            /* xIntegrity */
+};
+
+#endif /* SQLITE_OMIT_VIRTUALTABLE */
+
+
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_fuzzer_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  int rc = SQLITE_OK;
+  SQLITE_EXTENSION_INIT2(pApi);
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+  rc = sqlite3_create_module(db, "fuzzer", &fuzzerModule, 0);
+#endif
+  return rc;
+}
diff --git a/ext/misc/ieee754.c b/ext/misc/ieee754.c
new file mode 100644
index 0000000000000000000000000000000000000000..99489fe9caebe4138e8c365fca2bb66ee764978b
--- /dev/null
+++ b/ext/misc/ieee754.c
@@ -0,0 +1,324 @@
+/*
+** 2013-04-17
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This SQLite extension implements functions for the exact display
+** and input of IEEE754 Binary64 floating-point numbers.
+**
+**   ieee754(X)
+**   ieee754(Y,Z)
+**
+** In the first form, the value X should be a floating-point number.
+** The function will return a string of the form 'ieee754(Y,Z)' where
+** Y and Z are integers such that X==Y*pow(2,Z).
+**
+** In the second form, Y and Z are integers which are the mantissa and
+** base-2 exponent of a new floating point number.  The function returns
+** a floating-point value equal to Y*pow(2,Z).
+**
+** Examples:
+**
+**     ieee754(2.0)             ->     'ieee754(2,0)'
+**     ieee754(45.25)           ->     'ieee754(181,-2)'
+**     ieee754(2, 0)            ->     2.0
+**     ieee754(181, -2)         ->     45.25
+**
+** Two additional functions break apart the one-argument ieee754()
+** result into separate integer values:
+**
+**     ieee754_mantissa(45.25)  ->     181
+**     ieee754_exponent(45.25)  ->     -2
+**
+** These functions convert binary64 numbers into blobs and back again.
+**
+**     ieee754_from_blob(x'3ff0000000000000')  ->  1.0
+**     ieee754_to_blob(1.0)                    ->  x'3ff0000000000000'
+**
+** In all single-argument functions, if the argument is an 8-byte blob
+** then that blob is interpreted as a big-endian binary64 value.
+**
+**
+** EXACT DECIMAL REPRESENTATION OF BINARY64 VALUES
+** -----------------------------------------------
+**
+** This extension in combination with the separate 'decimal' extension
+** can be used to compute the exact decimal representation of binary64
+** values.  To begin, first compute a table of exponent values:
+**
+**    CREATE TABLE pow2(x INTEGER PRIMARY KEY, v TEXT);
+**    WITH RECURSIVE c(x,v) AS (
+**      VALUES(0,'1')
+**      UNION ALL
+**      SELECT x+1, decimal_mul(v,'2') FROM c WHERE x+1<=971
+**    ) INSERT INTO pow2(x,v) SELECT x, v FROM c;
+**    WITH RECURSIVE c(x,v) AS (
+**      VALUES(-1,'0.5')
+**      UNION ALL
+**      SELECT x-1, decimal_mul(v,'0.5') FROM c WHERE x-1>=-1075
+**    ) INSERT INTO pow2(x,v) SELECT x, v FROM c;
+**
+** Then, to compute the exact decimal representation of a floating
+** point value (the value 47.49 is used in the example) do:
+**
+**    WITH c(n) AS (VALUES(47.49))
+**          ---------------^^^^^---- Replace with whatever you want
+**    SELECT decimal_mul(ieee754_mantissa(c.n),pow2.v)
+**      FROM pow2, c WHERE pow2.x=ieee754_exponent(c.n);
+**
+** Here is a query to show various boundry values for the binary64
+** number format:
+**
+**    WITH c(name,bin) AS (VALUES
+**       ('minimum positive value',        x'0000000000000001'),
+**       ('maximum subnormal value',       x'000fffffffffffff'),
+**       ('mininum positive nornal value', x'0010000000000000'),
+**       ('maximum value',                 x'7fefffffffffffff'))
+**    SELECT c.name, decimal_mul(ieee754_mantissa(c.bin),pow2.v)
+**      FROM pow2, c WHERE pow2.x=ieee754_exponent(c.bin);
+**
+*/
+#include "sqlite3ext.h"
+SQLITE_EXTENSION_INIT1
+#include <assert.h>
+#include <string.h>
+
+/* Mark a function parameter as unused, to suppress nuisance compiler
+** warnings. */
+#ifndef UNUSED_PARAMETER
+# define UNUSED_PARAMETER(X)  (void)(X)
+#endif
+
+/*
+** Implementation of the ieee754() function
+*/
+static void ieee754func(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  if( argc==1 ){
+    sqlite3_int64 m, a;
+    double r;
+    int e;
+    int isNeg;
+    char zResult[100];
+    assert( sizeof(m)==sizeof(r) );
+    if( sqlite3_value_type(argv[0])==SQLITE_BLOB
+     && sqlite3_value_bytes(argv[0])==sizeof(r)
+    ){
+      const unsigned char *x = sqlite3_value_blob(argv[0]);
+      unsigned int i;
+      sqlite3_uint64 v = 0;
+      for(i=0; i<sizeof(r); i++){
+        v = (v<<8) | x[i];
+      }
+      memcpy(&r, &v, sizeof(r));
+    }else{
+      r = sqlite3_value_double(argv[0]);
+    }
+    if( r<0.0 ){
+      isNeg = 1;
+      r = -r;
+    }else{
+      isNeg = 0;
+    }
+    memcpy(&a,&r,sizeof(a));
+    if( a==0 ){
+      e = 0;
+      m = 0;
+    }else{
+      e = a>>52;
+      m = a & ((((sqlite3_int64)1)<<52)-1);
+      if( e==0 ){
+        m <<= 1;
+      }else{
+        m |= ((sqlite3_int64)1)<<52;
+      }
+      while( e<1075 && m>0 && (m&1)==0 ){
+        m >>= 1;
+        e++;
+      }
+      if( isNeg ) m = -m;
+    }
+    switch( *(int*)sqlite3_user_data(context) ){
+      case 0:
+        sqlite3_snprintf(sizeof(zResult), zResult, "ieee754(%lld,%d)",
+                         m, e-1075);
+        sqlite3_result_text(context, zResult, -1, SQLITE_TRANSIENT);
+        break;
+      case 1:
+        sqlite3_result_int64(context, m);
+        break;
+      case 2:
+        sqlite3_result_int(context, e-1075);
+        break;
+    }
+  }else{
+    sqlite3_int64 m, e, a;
+    double r;
+    int isNeg = 0;
+    m = sqlite3_value_int64(argv[0]);
+    e = sqlite3_value_int64(argv[1]);
+
+    /* Limit the range of e.  Ticket 22dea1cfdb9151e4 2021-03-02 */
+    if( e>10000 ){
+      e = 10000;
+    }else if( e<-10000 ){
+      e = -10000;
+    }
+
+    if( m<0 ){
+      isNeg = 1;
+      m = -m;
+      if( m<0 ) return;
+    }else if( m==0 && e>-1000 && e<1000 ){
+      sqlite3_result_double(context, 0.0);
+      return;
+    }
+    while( (m>>32)&0xffe00000 ){
+      m >>= 1;
+      e++;
+    }
+    while( m!=0 && ((m>>32)&0xfff00000)==0 ){
+      m <<= 1;
+      e--;
+    }
+    e += 1075;
+    if( e<=0 ){
+      /* Subnormal */
+      if( 1-e >= 64 ){
+        m = 0;
+      }else{
+        m >>= 1-e;
+      }
+      e = 0;
+    }else if( e>0x7ff ){
+      e = 0x7ff;
+    }
+    a = m & ((((sqlite3_int64)1)<<52)-1);
+    a |= e<<52;
+    if( isNeg ) a |= ((sqlite3_uint64)1)<<63;
+    memcpy(&r, &a, sizeof(r));
+    sqlite3_result_double(context, r);
+  }
+}
+
+/*
+** Functions to convert between blobs and floats.
+*/
+static void ieee754func_from_blob(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  UNUSED_PARAMETER(argc);
+  if( sqlite3_value_type(argv[0])==SQLITE_BLOB
+   && sqlite3_value_bytes(argv[0])==sizeof(double)
+  ){
+    double r;
+    const unsigned char *x = sqlite3_value_blob(argv[0]);
+    unsigned int i;
+    sqlite3_uint64 v = 0;
+    for(i=0; i<sizeof(r); i++){
+      v = (v<<8) | x[i];
+    }
+    memcpy(&r, &v, sizeof(r));
+    sqlite3_result_double(context, r);
+  }
+}
+static void ieee754func_to_blob(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  UNUSED_PARAMETER(argc);
+  if( sqlite3_value_type(argv[0])==SQLITE_FLOAT
+   || sqlite3_value_type(argv[0])==SQLITE_INTEGER
+  ){
+    double r = sqlite3_value_double(argv[0]);
+    sqlite3_uint64 v;
+    unsigned char a[sizeof(r)];
+    unsigned int i;
+    memcpy(&v, &r, sizeof(r));
+    for(i=1; i<=sizeof(r); i++){
+      a[sizeof(r)-i] = v&0xff;
+      v >>= 8;
+    }
+    sqlite3_result_blob(context, a, sizeof(r), SQLITE_TRANSIENT);
+  }
+}
+
+/*
+** SQL Function:   ieee754_inc(r,N)
+**
+** Move the floating point value r by N quantums and return the new
+** values.
+**
+** Behind the scenes: this routine merely casts r into a 64-bit unsigned
+** integer, adds N, then casts the value back into float.
+**
+** Example:  To find the smallest positive number:
+**
+**     SELECT ieee754_inc(0.0,+1);
+*/
+static void ieee754inc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  double r;
+  sqlite3_int64 N;
+  sqlite3_uint64 m1, m2;
+  double r2;
+  UNUSED_PARAMETER(argc);
+  r = sqlite3_value_double(argv[0]);
+  N = sqlite3_value_int64(argv[1]);
+  memcpy(&m1, &r, 8);
+  m2 = m1 + N;
+  memcpy(&r2, &m2, 8);
+  sqlite3_result_double(context, r2);
+}
+
+
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_ieee_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  static const struct {
+    char *zFName;
+    int nArg;
+    int iAux;
+    void (*xFunc)(sqlite3_context*,int,sqlite3_value**);
+  } aFunc[] = {
+    { "ieee754",           1,   0, ieee754func },
+    { "ieee754",           2,   0, ieee754func },
+    { "ieee754_mantissa",  1,   1, ieee754func },
+    { "ieee754_exponent",  1,   2, ieee754func },
+    { "ieee754_to_blob",   1,   0, ieee754func_to_blob },
+    { "ieee754_from_blob", 1,   0, ieee754func_from_blob },
+    { "ieee754_inc",       2,   0, ieee754inc  },
+  };
+  unsigned int i;
+  int rc = SQLITE_OK;
+  SQLITE_EXTENSION_INIT2(pApi);
+  (void)pzErrMsg;  /* Unused parameter */
+  for(i=0; i<sizeof(aFunc)/sizeof(aFunc[0]) && rc==SQLITE_OK; i++){
+    rc = sqlite3_create_function(db, aFunc[i].zFName, aFunc[i].nArg,
+                               SQLITE_UTF8|SQLITE_INNOCUOUS,
+                               (void*)&aFunc[i].iAux,
+                               aFunc[i].xFunc, 0, 0);
+  }
+  return rc;
+}
diff --git a/ext/misc/memstat.c b/ext/misc/memstat.c
new file mode 100644
index 0000000000000000000000000000000000000000..c56af9f2976c43ff17d3d55e0333335724501335
--- /dev/null
+++ b/ext/misc/memstat.c
@@ -0,0 +1,429 @@
+/*
+** 2018-09-27
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** This file demonstrates an eponymous virtual table that returns information
+** from sqlite3_status64() and sqlite3_db_status().
+**
+** Usage example:
+**
+**     .load ./memstat
+**     .mode quote
+**     .header on
+**     SELECT * FROM memstat;
+*/
+#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_MEMSTATVTAB)
+#if !defined(SQLITEINT_H)
+#include "sqlite3ext.h"
+#endif
+SQLITE_EXTENSION_INIT1
+#include <assert.h>
+#include <string.h>
+
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+
+/* memstat_vtab is a subclass of sqlite3_vtab which will
+** serve as the underlying representation of a memstat virtual table
+*/
+typedef struct memstat_vtab memstat_vtab;
+struct memstat_vtab {
+  sqlite3_vtab base;  /* Base class - must be first */
+  sqlite3 *db;        /* Database connection for this memstat vtab */
+};
+
+/* memstat_cursor is a subclass of sqlite3_vtab_cursor which will
+** serve as the underlying representation of a cursor that scans
+** over rows of the result
+*/
+typedef struct memstat_cursor memstat_cursor;
+struct memstat_cursor {
+  sqlite3_vtab_cursor base;  /* Base class - must be first */
+  sqlite3 *db;               /* Database connection for this cursor */
+  int iRowid;                /* Current row in aMemstatColumn[] */
+  int iDb;                   /* Which schema we are looking at */
+  int nDb;                   /* Number of schemas */
+  char **azDb;               /* Names of all schemas */
+  sqlite3_int64 aVal[2];     /* Result values */
+};
+
+/*
+** The memstatConnect() method is invoked to create a new
+** memstat_vtab that describes the memstat virtual table.
+**
+** Think of this routine as the constructor for memstat_vtab objects.
+**
+** All this routine needs to do is:
+**
+**    (1) Allocate the memstat_vtab object and initialize all fields.
+**
+**    (2) Tell SQLite (via the sqlite3_declare_vtab() interface) what the
+**        result set of queries against memstat will look like.
+*/
+static int memstatConnect(
+  sqlite3 *db,
+  void *pAux,
+  int argc, const char *const*argv,
+  sqlite3_vtab **ppVtab,
+  char **pzErr
+){
+  memstat_vtab *pNew;
+  int rc;
+
+/* Column numbers */
+#define MSV_COLUMN_NAME    0   /* Name of quantity being measured */
+#define MSV_COLUMN_SCHEMA  1   /* schema name */
+#define MSV_COLUMN_VALUE   2   /* Current value */
+#define MSV_COLUMN_HIWTR   3   /* Highwater mark */
+
+  rc = sqlite3_declare_vtab(db,"CREATE TABLE x(name,schema,value,hiwtr)");
+  if( rc==SQLITE_OK ){
+    pNew = sqlite3_malloc( sizeof(*pNew) );
+    *ppVtab = (sqlite3_vtab*)pNew;
+    if( pNew==0 ) return SQLITE_NOMEM;
+    memset(pNew, 0, sizeof(*pNew));
+    pNew->db = db;
+  }
+  return rc;
+}
+
+/*
+** This method is the destructor for memstat_cursor objects.
+*/
+static int memstatDisconnect(sqlite3_vtab *pVtab){
+  sqlite3_free(pVtab);
+  return SQLITE_OK;
+}
+
+/*
+** Constructor for a new memstat_cursor object.
+*/
+static int memstatOpen(sqlite3_vtab *p, sqlite3_vtab_cursor **ppCursor){
+  memstat_cursor *pCur;
+  pCur = sqlite3_malloc( sizeof(*pCur) );
+  if( pCur==0 ) return SQLITE_NOMEM;
+  memset(pCur, 0, sizeof(*pCur));
+  pCur->db = ((memstat_vtab*)p)->db;
+  *ppCursor = &pCur->base;
+  return SQLITE_OK;
+}
+
+/*
+** Clear all the schema names from a cursor
+*/
+static void memstatClearSchema(memstat_cursor *pCur){
+  int i;
+  if( pCur->azDb==0 ) return;
+  for(i=0; i<pCur->nDb; i++){
+    sqlite3_free(pCur->azDb[i]);
+  }
+  sqlite3_free(pCur->azDb);
+  pCur->azDb = 0;
+  pCur->nDb = 0;
+}
+
+/*
+** Fill in the azDb[] array for the cursor.
+*/
+static int memstatFindSchemas(memstat_cursor *pCur){
+  sqlite3_stmt *pStmt = 0;
+  int rc;
+  if( pCur->nDb ) return SQLITE_OK;
+  rc = sqlite3_prepare_v2(pCur->db, "PRAGMA database_list", -1, &pStmt, 0);
+  if( rc ){
+    sqlite3_finalize(pStmt);
+    return rc;
+  }
+  while( sqlite3_step(pStmt)==SQLITE_ROW ){
+    char **az, *z;
+    az = sqlite3_realloc64(pCur->azDb, sizeof(char*)*(pCur->nDb+1));
+    if( az==0 ){
+      memstatClearSchema(pCur);
+      return SQLITE_NOMEM;
+    }
+    pCur->azDb = az;
+    z = sqlite3_mprintf("%s", sqlite3_column_text(pStmt, 1));
+    if( z==0 ){
+      memstatClearSchema(pCur);
+      return SQLITE_NOMEM;
+    }
+    pCur->azDb[pCur->nDb] = z;
+    pCur->nDb++;
+  }
+  sqlite3_finalize(pStmt);
+  return SQLITE_OK;
+}
+
+
+/*
+** Destructor for a memstat_cursor.
+*/
+static int memstatClose(sqlite3_vtab_cursor *cur){
+  memstat_cursor *pCur = (memstat_cursor*)cur;
+  memstatClearSchema(pCur);
+  sqlite3_free(cur);
+  return SQLITE_OK;
+}
+
+
+/*
+** Allowed values for aMemstatColumn[].eType
+*/
+#define MSV_GSTAT   0          /* sqlite3_status64() information */
+#define MSV_DB      1          /* sqlite3_db_status() information */
+#define MSV_ZIPVFS  2          /* ZIPVFS file-control with 64-bit return */
+
+/*
+** An array of quantities that can be measured and reported by
+** this virtual table
+*/
+static const struct MemstatColumns {
+  const char *zName;    /* Symbolic name */
+  unsigned char eType;  /* Type of interface */
+  unsigned char mNull;  /* Bitmask of which columns are NULL */
+                        /* 2: dbname,  4: current,  8: hiwtr */
+  int eOp;              /* Opcode */
+} aMemstatColumn[] = {
+ {"MEMORY_USED",            MSV_GSTAT,  2, SQLITE_STATUS_MEMORY_USED          },
+ {"MALLOC_SIZE",            MSV_GSTAT,  6, SQLITE_STATUS_MALLOC_SIZE          },
+ {"MALLOC_COUNT",           MSV_GSTAT,  2, SQLITE_STATUS_MALLOC_COUNT         },
+ {"PAGECACHE_USED",         MSV_GSTAT,  2, SQLITE_STATUS_PAGECACHE_USED       },
+ {"PAGECACHE_OVERFLOW",     MSV_GSTAT,  2, SQLITE_STATUS_PAGECACHE_OVERFLOW   },
+ {"PAGECACHE_SIZE",         MSV_GSTAT,  6, SQLITE_STATUS_PAGECACHE_SIZE       },
+ {"PARSER_STACK",           MSV_GSTAT,  6, SQLITE_STATUS_PARSER_STACK         },
+ {"DB_LOOKASIDE_USED",      MSV_DB,     2, SQLITE_DBSTATUS_LOOKASIDE_USED     },
+ {"DB_LOOKASIDE_HIT",       MSV_DB,     6, SQLITE_DBSTATUS_LOOKASIDE_HIT      },
+ {"DB_LOOKASIDE_MISS_SIZE", MSV_DB,     6, SQLITE_DBSTATUS_LOOKASIDE_MISS_SIZE},
+ {"DB_LOOKASIDE_MISS_FULL", MSV_DB,     6, SQLITE_DBSTATUS_LOOKASIDE_MISS_FULL},
+ {"DB_CACHE_USED",          MSV_DB,    10, SQLITE_DBSTATUS_CACHE_USED         },
+#if SQLITE_VERSION_NUMBER >= 3140000
+ {"DB_CACHE_USED_SHARED",   MSV_DB,    10, SQLITE_DBSTATUS_CACHE_USED_SHARED  },
+#endif
+ {"DB_SCHEMA_USED",         MSV_DB,    10, SQLITE_DBSTATUS_SCHEMA_USED        },
+ {"DB_STMT_USED",           MSV_DB,    10, SQLITE_DBSTATUS_STMT_USED          },
+ {"DB_CACHE_HIT",           MSV_DB,    10, SQLITE_DBSTATUS_CACHE_HIT          },
+ {"DB_CACHE_MISS",          MSV_DB,    10, SQLITE_DBSTATUS_CACHE_MISS         },
+ {"DB_CACHE_WRITE",         MSV_DB,    10, SQLITE_DBSTATUS_CACHE_WRITE        },
+#if SQLITE_VERSION_NUMBER >= 3230000
+ {"DB_CACHE_SPILL",         MSV_DB,    10, SQLITE_DBSTATUS_CACHE_SPILL        },
+#endif
+ {"DB_DEFERRED_FKS",        MSV_DB,    10, SQLITE_DBSTATUS_DEFERRED_FKS       },
+#ifdef SQLITE_ENABLE_ZIPVFS
+ {"ZIPVFS_CACHE_USED",      MSV_ZIPVFS, 8, 231454 },
+ {"ZIPVFS_CACHE_HIT",       MSV_ZIPVFS, 8, 231455 },
+ {"ZIPVFS_CACHE_MISS",      MSV_ZIPVFS, 8, 231456 },
+ {"ZIPVFS_CACHE_WRITE",     MSV_ZIPVFS, 8, 231457 },
+ {"ZIPVFS_DIRECT_READ",     MSV_ZIPVFS, 8, 231458 },
+ {"ZIPVFS_DIRECT_BYTES",    MSV_ZIPVFS, 8, 231459 },
+#endif /* SQLITE_ENABLE_ZIPVFS */
+};
+#define MSV_NROW (sizeof(aMemstatColumn)/sizeof(aMemstatColumn[0]))
+
+/*
+** Advance a memstat_cursor to its next row of output.
+*/
+static int memstatNext(sqlite3_vtab_cursor *cur){
+  memstat_cursor *pCur = (memstat_cursor*)cur;
+  int i;
+  assert( pCur->iRowid<=MSV_NROW );
+  while(1){
+    i = (int)pCur->iRowid - 1;
+    if( i<0 || (aMemstatColumn[i].mNull & 2)!=0 || (++pCur->iDb)>=pCur->nDb ){
+      pCur->iRowid++;
+      if( pCur->iRowid>MSV_NROW ) return SQLITE_OK;  /* End of the table */
+      pCur->iDb = 0;
+      i++;
+    }
+    pCur->aVal[0] = 0;
+    pCur->aVal[1] = 0;    
+    switch( aMemstatColumn[i].eType ){
+      case MSV_GSTAT: {
+        if( sqlite3_libversion_number()>=3010000 ){
+          sqlite3_status64(aMemstatColumn[i].eOp,
+                           &pCur->aVal[0], &pCur->aVal[1],0);
+        }else{
+          int xCur, xHiwtr;
+          sqlite3_status(aMemstatColumn[i].eOp, &xCur, &xHiwtr, 0);
+          pCur->aVal[0] = xCur;
+          pCur->aVal[1] = xHiwtr;
+        }
+        break;
+      }
+      case MSV_DB: {
+        int xCur, xHiwtr;
+        sqlite3_db_status(pCur->db, aMemstatColumn[i].eOp, &xCur, &xHiwtr, 0);
+        pCur->aVal[0] = xCur;
+        pCur->aVal[1] = xHiwtr;
+        break;
+      }
+      case MSV_ZIPVFS: {
+        int rc;
+        rc = sqlite3_file_control(pCur->db, pCur->azDb[pCur->iDb],
+                                  aMemstatColumn[i].eOp, (void*)&pCur->aVal[0]);
+        if( rc!=SQLITE_OK ) continue;
+        break;
+      }
+    }
+    break;
+  }
+  return SQLITE_OK;
+}
+  
+
+/*
+** Return values of columns for the row at which the memstat_cursor
+** is currently pointing.
+*/
+static int memstatColumn(
+  sqlite3_vtab_cursor *cur,   /* The cursor */
+  sqlite3_context *ctx,       /* First argument to sqlite3_result_...() */
+  int iCol                    /* Which column to return */
+){
+  memstat_cursor *pCur = (memstat_cursor*)cur;
+  int i;
+  assert( pCur->iRowid>0 && pCur->iRowid<=MSV_NROW );
+  i = (int)pCur->iRowid - 1;
+  if( (aMemstatColumn[i].mNull & (1<<iCol))!=0 ){
+    return SQLITE_OK;
+  }
+  switch( iCol ){
+    case MSV_COLUMN_NAME: {
+      sqlite3_result_text(ctx, aMemstatColumn[i].zName, -1, SQLITE_STATIC);
+      break;
+    }
+    case MSV_COLUMN_SCHEMA: {
+      sqlite3_result_text(ctx, pCur->azDb[pCur->iDb], -1, 0);
+      break;
+    }
+    case MSV_COLUMN_VALUE: {
+      sqlite3_result_int64(ctx, pCur->aVal[0]);
+      break;
+    }
+    case MSV_COLUMN_HIWTR: {
+      sqlite3_result_int64(ctx, pCur->aVal[1]);
+      break;
+    }
+  }
+  return SQLITE_OK;
+}
+
+/*
+** Return the rowid for the current row.  In this implementation, the
+** rowid is the same as the output value.
+*/
+static int memstatRowid(sqlite3_vtab_cursor *cur, sqlite_int64 *pRowid){
+  memstat_cursor *pCur = (memstat_cursor*)cur;
+  *pRowid = pCur->iRowid*1000 + pCur->iDb;
+  return SQLITE_OK;
+}
+
+/*
+** Return TRUE if the cursor has been moved off of the last
+** row of output.
+*/
+static int memstatEof(sqlite3_vtab_cursor *cur){
+  memstat_cursor *pCur = (memstat_cursor*)cur;
+  return pCur->iRowid>MSV_NROW;
+}
+
+/*
+** This method is called to "rewind" the memstat_cursor object back
+** to the first row of output.  This method is always called at least
+** once prior to any call to memstatColumn() or memstatRowid() or 
+** memstatEof().
+*/
+static int memstatFilter(
+  sqlite3_vtab_cursor *pVtabCursor, 
+  int idxNum, const char *idxStr,
+  int argc, sqlite3_value **argv
+){
+  memstat_cursor *pCur = (memstat_cursor *)pVtabCursor;
+  int rc = memstatFindSchemas(pCur);
+  if( rc ) return rc;
+  pCur->iRowid = 0;
+  pCur->iDb = 0;
+  return memstatNext(pVtabCursor);
+}
+
+/*
+** SQLite will invoke this method one or more times while planning a query
+** that uses the memstat virtual table.  This routine needs to create
+** a query plan for each invocation and compute an estimated cost for that
+** plan.
+*/
+static int memstatBestIndex(
+  sqlite3_vtab *tab,
+  sqlite3_index_info *pIdxInfo
+){
+  pIdxInfo->estimatedCost = (double)500;
+  pIdxInfo->estimatedRows = 500;
+  return SQLITE_OK;
+}
+
+/*
+** This following structure defines all the methods for the 
+** memstat virtual table.
+*/
+static sqlite3_module memstatModule = {
+  0,                         /* iVersion */
+  0,                         /* xCreate */
+  memstatConnect,            /* xConnect */
+  memstatBestIndex,          /* xBestIndex */
+  memstatDisconnect,         /* xDisconnect */
+  0,                         /* xDestroy */
+  memstatOpen,               /* xOpen - open a cursor */
+  memstatClose,              /* xClose - close a cursor */
+  memstatFilter,             /* xFilter - configure scan constraints */
+  memstatNext,               /* xNext - advance a cursor */
+  memstatEof,                /* xEof - check for end of scan */
+  memstatColumn,             /* xColumn - read data */
+  memstatRowid,              /* xRowid - read data */
+  0,                         /* xUpdate */
+  0,                         /* xBegin */
+  0,                         /* xSync */
+  0,                         /* xCommit */
+  0,                         /* xRollback */
+  0,                         /* xFindMethod */
+  0,                         /* xRename */
+  0,                         /* xSavepoint */
+  0,                         /* xRelease */
+  0,                         /* xRollbackTo */
+  0,                         /* xShadowName */
+  0                          /* xIntegrity */
+};
+
+#endif /* SQLITE_OMIT_VIRTUALTABLE */
+
+int sqlite3MemstatVtabInit(sqlite3 *db){
+  int rc = SQLITE_OK;
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+  rc = sqlite3_create_module(db, "sqlite_memstat", &memstatModule, 0);
+#endif
+  return rc;
+}
+
+#ifndef SQLITE_CORE
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_memstat_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  int rc = SQLITE_OK;
+  SQLITE_EXTENSION_INIT2(pApi);
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+  rc = sqlite3MemstatVtabInit(db);
+#endif
+  return rc;
+}
+#endif /* SQLITE_CORE */
+#endif /* !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_MEMSTATVTAB) */
diff --git a/ext/misc/memtrace.c b/ext/misc/memtrace.c
new file mode 100644
index 0000000000000000000000000000000000000000..19ff4c4170550efba6c7fb787654750ab2b14523
--- /dev/null
+++ b/ext/misc/memtrace.c
@@ -0,0 +1,108 @@
+/*
+** 2019-01-21
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** This file implements an extension that uses the SQLITE_CONFIG_MALLOC
+** mechanism to add a tracing layer on top of SQLite.  If this extension
+** is registered prior to sqlite3_initialize(), it will cause all memory
+** allocation activities to be logged on standard output, or to some other
+** FILE specified by the initializer.
+**
+** This file needs to be compiled into the application that uses it.
+**
+** This extension is used to implement the --memtrace option of the
+** command-line shell.
+*/
+#include <assert.h>
+#include <string.h>
+#include <stdio.h>
+
+/* The original memory allocation routines */
+static sqlite3_mem_methods memtraceBase;
+static FILE *memtraceOut;
+
+/* Methods that trace memory allocations */
+static void *memtraceMalloc(int n){
+  if( memtraceOut ){
+    fprintf(memtraceOut, "MEMTRACE: allocate %d bytes\n", 
+            memtraceBase.xRoundup(n));
+  }
+  return memtraceBase.xMalloc(n);
+}
+static void memtraceFree(void *p){
+  if( p==0 ) return;
+  if( memtraceOut ){
+    fprintf(memtraceOut, "MEMTRACE: free %d bytes\n", memtraceBase.xSize(p));
+  }
+  memtraceBase.xFree(p);
+}
+static void *memtraceRealloc(void *p, int n){
+  if( p==0 ) return memtraceMalloc(n);
+  if( n==0 ){
+    memtraceFree(p);
+    return 0;
+  }
+  if( memtraceOut ){
+    fprintf(memtraceOut, "MEMTRACE: resize %d -> %d bytes\n",
+            memtraceBase.xSize(p), memtraceBase.xRoundup(n));
+  }
+  return memtraceBase.xRealloc(p, n);
+}
+static int memtraceSize(void *p){
+  return memtraceBase.xSize(p);
+}
+static int memtraceRoundup(int n){
+  return memtraceBase.xRoundup(n);
+}
+static int memtraceInit(void *p){
+  return memtraceBase.xInit(p);
+}
+static void memtraceShutdown(void *p){
+  memtraceBase.xShutdown(p);
+}
+
+/* The substitute memory allocator */
+static sqlite3_mem_methods ersaztMethods = {
+  memtraceMalloc,
+  memtraceFree,
+  memtraceRealloc,
+  memtraceSize,
+  memtraceRoundup,
+  memtraceInit,
+  memtraceShutdown,
+  0
+};
+
+/* Begin tracing memory allocations to out. */
+int sqlite3MemTraceActivate(FILE *out){
+  int rc = SQLITE_OK;
+  if( memtraceBase.xMalloc==0 ){
+    rc = sqlite3_config(SQLITE_CONFIG_GETMALLOC, &memtraceBase);
+    if( rc==SQLITE_OK ){
+      rc = sqlite3_config(SQLITE_CONFIG_MALLOC, &ersaztMethods);
+    }
+  }
+  memtraceOut = out;
+  return rc;
+}
+
+/* Deactivate memory tracing */
+int sqlite3MemTraceDeactivate(void){
+  int rc = SQLITE_OK;
+  if( memtraceBase.xMalloc!=0 ){
+    rc = sqlite3_config(SQLITE_CONFIG_MALLOC, &memtraceBase);
+    if( rc==SQLITE_OK ){
+      memset(&memtraceBase, 0, sizeof(memtraceBase));
+    }
+  }
+  memtraceOut = 0;
+  return rc;
+}
diff --git a/ext/misc/memvfs.c b/ext/misc/memvfs.c
new file mode 100644
index 0000000000000000000000000000000000000000..83fc9468e69ae654e93ef839d86164f9992e44a1
--- /dev/null
+++ b/ext/misc/memvfs.c
@@ -0,0 +1,575 @@
+/*
+** 2016-09-07
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This is an in-memory VFS implementation.  The application supplies
+** a chunk of memory to hold the database file.
+**
+** Because there is place to store a rollback or wal journal, the database
+** must use one of journal_mode=MEMORY or journal_mode=NONE.
+**
+** USAGE:
+**
+**    sqlite3_open_v2("file:/whatever?ptr=0xf05538&sz=14336&max=65536", &db,
+**                    SQLITE_OPEN_READWRITE | SQLITE_OPEN_URI,
+**                    "memvfs");
+**
+** These are the query parameters:
+**
+**    ptr=          The address of the memory buffer that holds the database.
+**
+**    sz=           The current size the database file
+**
+**    maxsz=        The maximum size of the database.  In other words, the
+**                  amount of space allocated for the ptr= buffer.
+**
+**    freeonclose=  If true, then sqlite3_free() is called on the ptr=
+**                  value when the connection closes.
+**
+** The ptr= and sz= query parameters are required.  If maxsz= is omitted,
+** then it defaults to the sz= value.  Parameter values can be in either
+** decimal or hexadecimal.  The filename in the URI is ignored.
+*/
+#include <sqlite3ext.h>
+SQLITE_EXTENSION_INIT1
+#include <string.h>
+#include <assert.h>
+
+
+/*
+** Forward declaration of objects used by this utility
+*/
+typedef struct sqlite3_vfs MemVfs;
+typedef struct MemFile MemFile;
+
+/* Access to a lower-level VFS that (might) implement dynamic loading,
+** access to randomness, etc.
+*/
+#define ORIGVFS(p) ((sqlite3_vfs*)((p)->pAppData))
+
+/* An open file */
+struct MemFile {
+  sqlite3_file base;              /* IO methods */
+  sqlite3_int64 sz;               /* Size of the file */
+  sqlite3_int64 szMax;            /* Space allocated to aData */
+  unsigned char *aData;           /* content of the file */
+  int bFreeOnClose;               /* Invoke sqlite3_free() on aData at close */
+};
+
+/*
+** Methods for MemFile
+*/
+static int memClose(sqlite3_file*);
+static int memRead(sqlite3_file*, void*, int iAmt, sqlite3_int64 iOfst);
+static int memWrite(sqlite3_file*,const void*,int iAmt, sqlite3_int64 iOfst);
+static int memTruncate(sqlite3_file*, sqlite3_int64 size);
+static int memSync(sqlite3_file*, int flags);
+static int memFileSize(sqlite3_file*, sqlite3_int64 *pSize);
+static int memLock(sqlite3_file*, int);
+static int memUnlock(sqlite3_file*, int);
+static int memCheckReservedLock(sqlite3_file*, int *pResOut);
+static int memFileControl(sqlite3_file*, int op, void *pArg);
+static int memSectorSize(sqlite3_file*);
+static int memDeviceCharacteristics(sqlite3_file*);
+static int memShmMap(sqlite3_file*, int iPg, int pgsz, int, void volatile**);
+static int memShmLock(sqlite3_file*, int offset, int n, int flags);
+static void memShmBarrier(sqlite3_file*);
+static int memShmUnmap(sqlite3_file*, int deleteFlag);
+static int memFetch(sqlite3_file*, sqlite3_int64 iOfst, int iAmt, void **pp);
+static int memUnfetch(sqlite3_file*, sqlite3_int64 iOfst, void *p);
+
+/*
+** Methods for MemVfs
+*/
+static int memOpen(sqlite3_vfs*, const char *, sqlite3_file*, int , int *);
+static int memDelete(sqlite3_vfs*, const char *zName, int syncDir);
+static int memAccess(sqlite3_vfs*, const char *zName, int flags, int *);
+static int memFullPathname(sqlite3_vfs*, const char *zName, int, char *zOut);
+static void *memDlOpen(sqlite3_vfs*, const char *zFilename);
+static void memDlError(sqlite3_vfs*, int nByte, char *zErrMsg);
+static void (*memDlSym(sqlite3_vfs *pVfs, void *p, const char*zSym))(void);
+static void memDlClose(sqlite3_vfs*, void*);
+static int memRandomness(sqlite3_vfs*, int nByte, char *zOut);
+static int memSleep(sqlite3_vfs*, int microseconds);
+static int memCurrentTime(sqlite3_vfs*, double*);
+static int memGetLastError(sqlite3_vfs*, int, char *);
+static int memCurrentTimeInt64(sqlite3_vfs*, sqlite3_int64*);
+
+static sqlite3_vfs mem_vfs = {
+  2,                           /* iVersion */
+  0,                           /* szOsFile (set when registered) */
+  1024,                        /* mxPathname */
+  0,                           /* pNext */
+  "memvfs",                    /* zName */
+  0,                           /* pAppData (set when registered) */ 
+  memOpen,                     /* xOpen */
+  memDelete,                   /* xDelete */
+  memAccess,                   /* xAccess */
+  memFullPathname,             /* xFullPathname */
+  memDlOpen,                   /* xDlOpen */
+  memDlError,                  /* xDlError */
+  memDlSym,                    /* xDlSym */
+  memDlClose,                  /* xDlClose */
+  memRandomness,               /* xRandomness */
+  memSleep,                    /* xSleep */
+  memCurrentTime,              /* xCurrentTime */
+  memGetLastError,             /* xGetLastError */
+  memCurrentTimeInt64          /* xCurrentTimeInt64 */
+};
+
+static const sqlite3_io_methods mem_io_methods = {
+  3,                              /* iVersion */
+  memClose,                      /* xClose */
+  memRead,                       /* xRead */
+  memWrite,                      /* xWrite */
+  memTruncate,                   /* xTruncate */
+  memSync,                       /* xSync */
+  memFileSize,                   /* xFileSize */
+  memLock,                       /* xLock */
+  memUnlock,                     /* xUnlock */
+  memCheckReservedLock,          /* xCheckReservedLock */
+  memFileControl,                /* xFileControl */
+  memSectorSize,                 /* xSectorSize */
+  memDeviceCharacteristics,      /* xDeviceCharacteristics */
+  memShmMap,                     /* xShmMap */
+  memShmLock,                    /* xShmLock */
+  memShmBarrier,                 /* xShmBarrier */
+  memShmUnmap,                   /* xShmUnmap */
+  memFetch,                      /* xFetch */
+  memUnfetch                     /* xUnfetch */
+};
+
+
+
+/*
+** Close an mem-file.
+**
+** The pData pointer is owned by the application, so there is nothing
+** to free.
+*/
+static int memClose(sqlite3_file *pFile){
+  MemFile *p = (MemFile *)pFile;
+  if( p->bFreeOnClose ) sqlite3_free(p->aData);
+  return SQLITE_OK;
+}
+
+/*
+** Read data from an mem-file.
+*/
+static int memRead(
+  sqlite3_file *pFile, 
+  void *zBuf, 
+  int iAmt, 
+  sqlite_int64 iOfst
+){
+  MemFile *p = (MemFile *)pFile;
+  memcpy(zBuf, p->aData+iOfst, iAmt);
+  return SQLITE_OK;
+}
+
+/*
+** Write data to an mem-file.
+*/
+static int memWrite(
+  sqlite3_file *pFile,
+  const void *z,
+  int iAmt,
+  sqlite_int64 iOfst
+){
+  MemFile *p = (MemFile *)pFile;
+  if( iOfst+iAmt>p->sz ){
+    if( iOfst+iAmt>p->szMax ) return SQLITE_FULL;
+    if( iOfst>p->sz ) memset(p->aData+p->sz, 0, iOfst-p->sz);
+    p->sz = iOfst+iAmt;
+  }
+  memcpy(p->aData+iOfst, z, iAmt);
+  return SQLITE_OK;
+}
+
+/*
+** Truncate an mem-file.
+*/
+static int memTruncate(sqlite3_file *pFile, sqlite_int64 size){
+  MemFile *p = (MemFile *)pFile;
+  if( size>p->sz ){
+    if( size>p->szMax ) return SQLITE_FULL;
+    memset(p->aData+p->sz, 0, size-p->sz);
+  }
+  p->sz = size; 
+  return SQLITE_OK;
+}
+
+/*
+** Sync an mem-file.
+*/
+static int memSync(sqlite3_file *pFile, int flags){
+  return SQLITE_OK;
+}
+
+/*
+** Return the current file-size of an mem-file.
+*/
+static int memFileSize(sqlite3_file *pFile, sqlite_int64 *pSize){
+  MemFile *p = (MemFile *)pFile;
+  *pSize = p->sz;
+  return SQLITE_OK;
+}
+
+/*
+** Lock an mem-file.
+*/
+static int memLock(sqlite3_file *pFile, int eLock){
+  return SQLITE_OK;
+}
+
+/*
+** Unlock an mem-file.
+*/
+static int memUnlock(sqlite3_file *pFile, int eLock){
+  return SQLITE_OK;
+}
+
+/*
+** Check if another file-handle holds a RESERVED lock on an mem-file.
+*/
+static int memCheckReservedLock(sqlite3_file *pFile, int *pResOut){
+  *pResOut = 0;
+  return SQLITE_OK;
+}
+
+/*
+** File control method. For custom operations on an mem-file.
+*/
+static int memFileControl(sqlite3_file *pFile, int op, void *pArg){
+  MemFile *p = (MemFile *)pFile;
+  int rc = SQLITE_NOTFOUND;
+  if( op==SQLITE_FCNTL_VFSNAME ){
+    *(char**)pArg = sqlite3_mprintf("mem(%p,%lld)", p->aData, p->sz);
+    rc = SQLITE_OK;
+  }
+  return rc;
+}
+
+/*
+** Return the sector-size in bytes for an mem-file.
+*/
+static int memSectorSize(sqlite3_file *pFile){
+  return 1024;
+}
+
+/*
+** Return the device characteristic flags supported by an mem-file.
+*/
+static int memDeviceCharacteristics(sqlite3_file *pFile){
+  return SQLITE_IOCAP_ATOMIC | 
+         SQLITE_IOCAP_POWERSAFE_OVERWRITE |
+         SQLITE_IOCAP_SAFE_APPEND |
+         SQLITE_IOCAP_SEQUENTIAL;
+}
+
+/* Create a shared memory file mapping */
+static int memShmMap(
+  sqlite3_file *pFile,
+  int iPg,
+  int pgsz,
+  int bExtend,
+  void volatile **pp
+){
+  return SQLITE_IOERR_SHMMAP;
+}
+
+/* Perform locking on a shared-memory segment */
+static int memShmLock(sqlite3_file *pFile, int offset, int n, int flags){
+  return SQLITE_IOERR_SHMLOCK;
+}
+
+/* Memory barrier operation on shared memory */
+static void memShmBarrier(sqlite3_file *pFile){
+  return;
+}
+
+/* Unmap a shared memory segment */
+static int memShmUnmap(sqlite3_file *pFile, int deleteFlag){
+  return SQLITE_OK;
+}
+
+/* Fetch a page of a memory-mapped file */
+static int memFetch(
+  sqlite3_file *pFile,
+  sqlite3_int64 iOfst,
+  int iAmt,
+  void **pp
+){
+  MemFile *p = (MemFile *)pFile;
+  *pp = (void*)(p->aData + iOfst);
+  return SQLITE_OK;
+}
+
+/* Release a memory-mapped page */
+static int memUnfetch(sqlite3_file *pFile, sqlite3_int64 iOfst, void *pPage){
+  return SQLITE_OK;
+}
+
+/*
+** Open an mem file handle.
+*/
+static int memOpen(
+  sqlite3_vfs *pVfs,
+  const char *zName,
+  sqlite3_file *pFile,
+  int flags,
+  int *pOutFlags
+){
+  MemFile *p = (MemFile*)pFile;
+  memset(p, 0, sizeof(*p));
+  if( (flags & SQLITE_OPEN_MAIN_DB)==0 ) return SQLITE_CANTOPEN;
+  p->aData = (unsigned char*)sqlite3_uri_int64(zName,"ptr",0);
+  if( p->aData==0 ) return SQLITE_CANTOPEN;
+  p->sz = sqlite3_uri_int64(zName,"sz",0);
+  if( p->sz<0 ) return SQLITE_CANTOPEN;
+  p->szMax = sqlite3_uri_int64(zName,"max",p->sz);
+  if( p->szMax<p->sz ) return SQLITE_CANTOPEN;
+  p->bFreeOnClose = sqlite3_uri_boolean(zName,"freeonclose",0);
+  pFile->pMethods = &mem_io_methods;
+  return SQLITE_OK;
+}
+
+/*
+** Delete the file located at zPath. If the dirSync argument is true,
+** ensure the file-system modifications are synced to disk before
+** returning.
+*/
+static int memDelete(sqlite3_vfs *pVfs, const char *zPath, int dirSync){
+  return SQLITE_IOERR_DELETE;
+}
+
+/*
+** Test for access permissions. Return true if the requested permission
+** is available, or false otherwise.
+*/
+static int memAccess(
+  sqlite3_vfs *pVfs, 
+  const char *zPath, 
+  int flags, 
+  int *pResOut
+){
+  *pResOut = 0;
+  return SQLITE_OK;
+}
+
+/*
+** Populate buffer zOut with the full canonical pathname corresponding
+** to the pathname in zPath. zOut is guaranteed to point to a buffer
+** of at least (INST_MAX_PATHNAME+1) bytes.
+*/
+static int memFullPathname(
+  sqlite3_vfs *pVfs, 
+  const char *zPath, 
+  int nOut, 
+  char *zOut
+){
+  sqlite3_snprintf(nOut, zOut, "%s", zPath);
+  return SQLITE_OK;
+}
+
+/*
+** Open the dynamic library located at zPath and return a handle.
+*/
+static void *memDlOpen(sqlite3_vfs *pVfs, const char *zPath){
+  return ORIGVFS(pVfs)->xDlOpen(ORIGVFS(pVfs), zPath);
+}
+
+/*
+** Populate the buffer zErrMsg (size nByte bytes) with a human readable
+** utf-8 string describing the most recent error encountered associated 
+** with dynamic libraries.
+*/
+static void memDlError(sqlite3_vfs *pVfs, int nByte, char *zErrMsg){
+  ORIGVFS(pVfs)->xDlError(ORIGVFS(pVfs), nByte, zErrMsg);
+}
+
+/*
+** Return a pointer to the symbol zSymbol in the dynamic library pHandle.
+*/
+static void (*memDlSym(sqlite3_vfs *pVfs, void *p, const char *zSym))(void){
+  return ORIGVFS(pVfs)->xDlSym(ORIGVFS(pVfs), p, zSym);
+}
+
+/*
+** Close the dynamic library handle pHandle.
+*/
+static void memDlClose(sqlite3_vfs *pVfs, void *pHandle){
+  ORIGVFS(pVfs)->xDlClose(ORIGVFS(pVfs), pHandle);
+}
+
+/*
+** Populate the buffer pointed to by zBufOut with nByte bytes of 
+** random data.
+*/
+static int memRandomness(sqlite3_vfs *pVfs, int nByte, char *zBufOut){
+  return ORIGVFS(pVfs)->xRandomness(ORIGVFS(pVfs), nByte, zBufOut);
+}
+
+/*
+** Sleep for nMicro microseconds. Return the number of microseconds 
+** actually slept.
+*/
+static int memSleep(sqlite3_vfs *pVfs, int nMicro){
+  return ORIGVFS(pVfs)->xSleep(ORIGVFS(pVfs), nMicro);
+}
+
+/*
+** Return the current time as a Julian Day number in *pTimeOut.
+*/
+static int memCurrentTime(sqlite3_vfs *pVfs, double *pTimeOut){
+  return ORIGVFS(pVfs)->xCurrentTime(ORIGVFS(pVfs), pTimeOut);
+}
+
+static int memGetLastError(sqlite3_vfs *pVfs, int a, char *b){
+  return ORIGVFS(pVfs)->xGetLastError(ORIGVFS(pVfs), a, b);
+}
+static int memCurrentTimeInt64(sqlite3_vfs *pVfs, sqlite3_int64 *p){
+  return ORIGVFS(pVfs)->xCurrentTimeInt64(ORIGVFS(pVfs), p);
+}
+
+#ifdef MEMVFS_TEST
+/*
+**       memvfs_from_file(FILENAME, MAXSIZE)
+**
+** This an SQL function used to help in testing the memvfs VFS.  The
+** function reads the content of a file into memory and then returns
+** a URI that can be handed to ATTACH to attach the memory buffer as
+** a database.  Example:
+**
+**       ATTACH memvfs_from_file('test.db',1048576) AS inmem;
+**
+** The optional MAXSIZE argument gives the size of the memory allocation
+** used to hold the database.  If omitted, it defaults to the size of the
+** file on disk.
+*/
+#include <stdio.h>
+static void memvfsFromFileFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  unsigned char *p;
+  sqlite3_int64 sz;
+  sqlite3_int64 szMax;
+  FILE *in;
+  const char *zFilename = (const char*)sqlite3_value_text(argv[0]);
+  char *zUri;
+
+  if( zFilename==0 ) return;
+  in = fopen(zFilename, "rb");
+  if( in==0 ) return;
+  fseek(in, 0, SEEK_END);
+  szMax = sz = ftell(in);
+  rewind(in);
+  if( argc>=2 ){
+    szMax = sqlite3_value_int64(argv[1]);
+    if( szMax<sz ) szMax = sz;
+  }
+  p = sqlite3_malloc64( szMax );
+  if( p==0 ){
+    fclose(in);
+    sqlite3_result_error_nomem(context);
+    return;
+  }
+  fread(p, sz, 1, in);
+  fclose(in);
+  zUri = sqlite3_mprintf(
+           "file:/mem?vfs=memvfs&ptr=%lld&sz=%lld&max=%lld&freeonclose=1",
+                         (sqlite3_int64)p, sz, szMax);
+  sqlite3_result_text(context, zUri, -1, sqlite3_free);
+}
+#endif /* MEMVFS_TEST */
+
+#ifdef MEMVFS_TEST
+/*
+**       memvfs_to_file(SCHEMA, FILENAME)
+**
+** The schema identified by SCHEMA must be a memvfs database.  Write
+** the content of this database into FILENAME.
+*/
+static void memvfsToFileFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  MemFile *p = 0;
+  FILE *out;
+  int rc;
+  sqlite3 *db = sqlite3_context_db_handle(context);
+  sqlite3_vfs *pVfs = 0;
+  const char *zSchema = (const char*)sqlite3_value_text(argv[0]);
+  const char *zFilename = (const char*)sqlite3_value_text(argv[1]);
+
+  if( zFilename==0 ) return;
+  out = fopen(zFilename, "wb");
+  if( out==0 ) return;
+  rc = sqlite3_file_control(db, zSchema, SQLITE_FCNTL_VFS_POINTER, &pVfs);
+  if( rc || pVfs==0 ) return;
+  if( strcmp(pVfs->zName,"memvfs")!=0 ) return;
+  rc = sqlite3_file_control(db, zSchema, SQLITE_FCNTL_FILE_POINTER, &p);
+  if( rc ) return;
+  fwrite(p->aData, 1, (size_t)p->sz, out);
+  fclose(out);
+}
+#endif /* MEMVFS_TEST */
+
+#ifdef MEMVFS_TEST
+/* Called for each new database connection */
+static int memvfsRegister(
+  sqlite3 *db,
+  char **pzErrMsg,
+  const struct sqlite3_api_routines *pThunk
+){
+  sqlite3_create_function(db, "memvfs_from_file", 1, SQLITE_UTF8, 0,
+                          memvfsFromFileFunc, 0, 0);
+  sqlite3_create_function(db, "memvfs_from_file", 2, SQLITE_UTF8, 0,
+                          memvfsFromFileFunc, 0, 0);
+  sqlite3_create_function(db, "memvfs_to_file", 2, SQLITE_UTF8, 0,
+                          memvfsToFileFunc, 0, 0);
+  return SQLITE_OK;
+}
+#endif /* MEMVFS_TEST */
+
+  
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+/* 
+** This routine is called when the extension is loaded.
+** Register the new VFS.
+*/
+int sqlite3_memvfs_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  int rc = SQLITE_OK;
+  SQLITE_EXTENSION_INIT2(pApi);
+  mem_vfs.pAppData = sqlite3_vfs_find(0);
+  if( mem_vfs.pAppData==0 ) return SQLITE_ERROR;
+  mem_vfs.szOsFile = sizeof(MemFile);
+  rc = sqlite3_vfs_register(&mem_vfs, 1);
+#ifdef MEMVFS_TEST
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_auto_extension((void(*)(void))memvfsRegister);
+  }
+  if( rc==SQLITE_OK ){
+    rc = memvfsRegister(db, pzErrMsg, pApi);
+  }
+#endif
+  if( rc==SQLITE_OK ) rc = SQLITE_OK_LOAD_PERMANENTLY;
+  return rc;
+}
diff --git a/ext/misc/mmapwarm.c b/ext/misc/mmapwarm.c
new file mode 100644
index 0000000000000000000000000000000000000000..851f8b0eb7a39a9e77b0a6e0ddac805980685bfd
--- /dev/null
+++ b/ext/misc/mmapwarm.c
@@ -0,0 +1,108 @@
+/*
+** 2017-09-18
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+*/
+
+#include "sqlite3.h"
+
+
+/*
+** This function is used to touch each page of a mapping of a memory
+** mapped SQLite database. Assuming that the system has sufficient free
+** memory and supports sufficiently large mappings, this causes the OS 
+** to cache the entire database in main memory, making subsequent 
+** database accesses faster.
+**
+** If the second parameter to this function is not NULL, it is the name of
+** the specific database to operate on (i.e. "main" or the name of an
+** attached database).
+**
+** SQLITE_OK is returned if successful, or an SQLite error code otherwise.
+** It is not considered an error if the file is not memory-mapped, or if
+** the mapping does not span the entire file. If an error does occur, a
+** transaction may be left open on the database file.
+**
+** It is illegal to call this function when the database handle has an 
+** open transaction. SQLITE_MISUSE is returned in this case.
+*/
+int sqlite3_mmap_warm(sqlite3 *db, const char *zDb){
+  int rc = SQLITE_OK;
+  char *zSql = 0;
+  int pgsz = 0;
+  unsigned int nTotal = 0;
+
+  if( 0==sqlite3_get_autocommit(db) ) return SQLITE_MISUSE;
+
+  /* Open a read-only transaction on the file in question */
+  zSql = sqlite3_mprintf("BEGIN; SELECT * FROM %s%q%ssqlite_schema", 
+      (zDb ? "'" : ""), (zDb ? zDb : ""), (zDb ? "'." : "")
+  );
+  if( zSql==0 ) return SQLITE_NOMEM;
+  rc = sqlite3_exec(db, zSql, 0, 0, 0);
+  sqlite3_free(zSql);
+
+  /* Find the SQLite page size of the file */
+  if( rc==SQLITE_OK ){
+    zSql = sqlite3_mprintf("PRAGMA %s%q%spage_size", 
+        (zDb ? "'" : ""), (zDb ? zDb : ""), (zDb ? "'." : "")
+    );
+    if( zSql==0 ){
+      rc = SQLITE_NOMEM;
+    }else{
+      sqlite3_stmt *pPgsz = 0;
+      rc = sqlite3_prepare_v2(db, zSql, -1, &pPgsz, 0);
+      sqlite3_free(zSql);
+      if( rc==SQLITE_OK ){
+        if( sqlite3_step(pPgsz)==SQLITE_ROW ){
+          pgsz = sqlite3_column_int(pPgsz, 0);
+        }
+        rc = sqlite3_finalize(pPgsz);
+      }
+      if( rc==SQLITE_OK && pgsz==0 ){
+        rc = SQLITE_ERROR;
+      }
+    }
+  }
+
+  /* Touch each mmap'd page of the file */
+  if( rc==SQLITE_OK ){
+    int rc2;
+    sqlite3_file *pFd = 0;
+    rc = sqlite3_file_control(db, zDb, SQLITE_FCNTL_FILE_POINTER, &pFd);
+    if( rc==SQLITE_OK && pFd->pMethods->iVersion>=3 ){
+      sqlite3_int64 iPg = 1;
+      sqlite3_io_methods const *p = pFd->pMethods;
+      while( 1 ){
+        unsigned char *pMap;
+        rc = p->xFetch(pFd, pgsz*iPg, pgsz, (void**)&pMap);
+        if( rc!=SQLITE_OK || pMap==0 ) break;
+
+        nTotal += (unsigned int)pMap[0];
+        nTotal += (unsigned int)pMap[pgsz-1];
+
+        rc = p->xUnfetch(pFd, pgsz*iPg, (void*)pMap);
+        if( rc!=SQLITE_OK ) break;
+        iPg++;
+      }
+      sqlite3_log(SQLITE_OK, 
+          "sqlite3_mmap_warm_cache: Warmed up %d pages of %s", iPg==1?0:iPg,
+          sqlite3_db_filename(db, zDb)
+      );
+    }
+
+    rc2 = sqlite3_exec(db, "END", 0, 0, 0);
+    if( rc==SQLITE_OK ) rc = rc2;
+  }
+
+  (void)nTotal;
+  return rc;
+}
diff --git a/ext/misc/nextchar.c b/ext/misc/nextchar.c
new file mode 100644
index 0000000000000000000000000000000000000000..60fa3db94dc0530f9b1379a7ec589e37a4877faa
--- /dev/null
+++ b/ext/misc/nextchar.c
@@ -0,0 +1,314 @@
+/*
+** 2013-02-28
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This file contains code to implement the next_char(A,T,F,W,C) SQL function.
+**
+** The next_char(A,T,F,W,C) function finds all valid "next" characters for
+** string A given the vocabulary in T.F.  If the W value exists and is a
+** non-empty string, then it is an SQL expression that limits the entries
+** in T.F that will be considered.  If C exists and is a non-empty string,
+** then it is the name of the collating sequence to use for comparison.  If
+** 
+** Only the first three arguments are required.  If the C parameter is 
+** omitted or is NULL or is an empty string, then the default collating 
+** sequence of T.F is used for comparision.  If the W parameter is omitted
+** or is NULL or is an empty string, then no filtering of the output is
+** done.
+**
+** The T.F column should be indexed using collation C or else this routine
+** will be quite slow.
+**
+** For example, suppose an application has a dictionary like this:
+**
+**   CREATE TABLE dictionary(word TEXT UNIQUE);
+**
+** Further suppose that for user keypad entry, it is desired to disable
+** (gray out) keys that are not valid as the next character.  If the
+** the user has previously entered (say) 'cha' then to find all allowed
+** next characters (and thereby determine when keys should not be grayed
+** out) run the following query:
+**
+**   SELECT next_char('cha','dictionary','word');
+**
+** IMPLEMENTATION NOTES:
+**
+** The next_char function is implemented using recursive SQL that makes
+** use of the table name and column name as part of a query.  If either
+** the table name or column name are keywords or contain special characters,
+** then they should be escaped.  For example:
+**
+**   SELECT next_char('cha','[dictionary]','[word]');
+**
+** This also means that the table name can be a subquery:
+**
+**   SELECT next_char('cha','(SELECT word AS w FROM dictionary)','w');
+*/
+#include "sqlite3ext.h"
+SQLITE_EXTENSION_INIT1
+#include <string.h>
+
+/*
+** A structure to hold context of the next_char() computation across
+** nested function calls.
+*/
+typedef struct nextCharContext nextCharContext;
+struct nextCharContext {
+  sqlite3 *db;                      /* Database connection */
+  sqlite3_stmt *pStmt;              /* Prepared statement used to query */
+  const unsigned char *zPrefix;     /* Prefix to scan */
+  int nPrefix;                      /* Size of zPrefix in bytes */
+  int nAlloc;                       /* Space allocated to aResult */
+  int nUsed;                        /* Space used in aResult */
+  unsigned int *aResult;            /* Array of next characters */
+  int mallocFailed;                 /* True if malloc fails */
+  int otherError;                   /* True for any other failure */
+};
+
+/*
+** Append a result character if the character is not already in the
+** result.
+*/
+static void nextCharAppend(nextCharContext *p, unsigned c){
+  int i;
+  for(i=0; i<p->nUsed; i++){
+    if( p->aResult[i]==c ) return;
+  }
+  if( p->nUsed+1 > p->nAlloc ){
+    unsigned int *aNew;
+    int n = p->nAlloc*2 + 30;
+    aNew = sqlite3_realloc64(p->aResult, n*sizeof(unsigned int));
+    if( aNew==0 ){
+      p->mallocFailed = 1;
+      return;
+    }else{
+      p->aResult = aNew;
+      p->nAlloc = n;
+    }
+  }
+  p->aResult[p->nUsed++] = c;
+}
+
+/*
+** Write a character into z[] as UTF8.  Return the number of bytes needed
+** to hold the character
+*/
+static int writeUtf8(unsigned char *z, unsigned c){
+  if( c<0x00080 ){
+    z[0] = (unsigned char)(c&0xff);
+    return 1;
+  }
+  if( c<0x00800 ){
+    z[0] = 0xC0 + (unsigned char)((c>>6)&0x1F);
+    z[1] = 0x80 + (unsigned char)(c & 0x3F);
+    return 2;
+  }
+  if( c<0x10000 ){
+    z[0] = 0xE0 + (unsigned char)((c>>12)&0x0F);
+    z[1] = 0x80 + (unsigned char)((c>>6) & 0x3F);
+    z[2] = 0x80 + (unsigned char)(c & 0x3F);
+    return 3;
+  }
+  z[0] = 0xF0 + (unsigned char)((c>>18) & 0x07);
+  z[1] = 0x80 + (unsigned char)((c>>12) & 0x3F);
+  z[2] = 0x80 + (unsigned char)((c>>6) & 0x3F);
+  z[3] = 0x80 + (unsigned char)(c & 0x3F);
+  return 4;
+}
+
+/*
+** Read a UTF8 character out of z[] and write it into *pOut.  Return
+** the number of bytes in z[] that were used to construct the character.
+*/
+static int readUtf8(const unsigned char *z, unsigned *pOut){
+  static const unsigned char validBits[] = {
+    0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+    0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
+    0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
+    0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
+    0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+    0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
+    0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+    0x00, 0x01, 0x02, 0x03, 0x00, 0x01, 0x00, 0x00,
+  };
+  unsigned c = z[0];
+  if( c<0xc0 ){
+    *pOut = c;
+    return 1;
+  }else{
+    int n = 1;
+    c = validBits[c-0xc0];
+    while( (z[n] & 0xc0)==0x80 ){
+      c = (c<<6) + (0x3f & z[n++]);
+    }
+    if( c<0x80 || (c&0xFFFFF800)==0xD800 || (c&0xFFFFFFFE)==0xFFFE ){
+      c = 0xFFFD;
+    }
+    *pOut = c;
+    return n;
+  }
+}
+
+/*
+** The nextCharContext structure has been set up.  Add all "next" characters
+** to the result set.
+*/
+static void findNextChars(nextCharContext *p){
+  unsigned cPrev = 0;
+  unsigned char zPrev[8];
+  int n, rc;
+  
+  for(;;){
+    sqlite3_bind_text(p->pStmt, 1, (char*)p->zPrefix, p->nPrefix,
+                      SQLITE_STATIC);
+    n = writeUtf8(zPrev, cPrev+1);
+    sqlite3_bind_text(p->pStmt, 2, (char*)zPrev, n, SQLITE_STATIC);
+    rc = sqlite3_step(p->pStmt);
+    if( rc==SQLITE_DONE ){
+      sqlite3_reset(p->pStmt);
+      return;
+    }else if( rc!=SQLITE_ROW ){
+      p->otherError = rc;
+      return;
+    }else{
+      const unsigned char *zOut = sqlite3_column_text(p->pStmt, 0);
+      unsigned cNext;
+      n = readUtf8(zOut+p->nPrefix, &cNext);
+      sqlite3_reset(p->pStmt);
+      nextCharAppend(p, cNext);
+      cPrev = cNext;
+      if( p->mallocFailed ) return;
+    }
+  }
+}
+
+
+/*
+** next_character(A,T,F,W)
+**
+** Return a string composted of all next possible characters after
+** A for elements of T.F.  If W is supplied, then it is an SQL expression
+** that limits the elements in T.F that are considered.
+*/
+static void nextCharFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  nextCharContext c;
+  const unsigned char *zTable = sqlite3_value_text(argv[1]);
+  const unsigned char *zField = sqlite3_value_text(argv[2]);
+  const unsigned char *zWhere;
+  const unsigned char *zCollName;
+  char *zWhereClause = 0;
+  char *zColl = 0;
+  char *zSql;
+  int rc;
+
+  memset(&c, 0, sizeof(c));
+  c.db = sqlite3_context_db_handle(context);
+  c.zPrefix = sqlite3_value_text(argv[0]);
+  c.nPrefix = sqlite3_value_bytes(argv[0]);
+  if( zTable==0 || zField==0 || c.zPrefix==0 ) return;
+  if( argc>=4
+   && (zWhere = sqlite3_value_text(argv[3]))!=0
+   && zWhere[0]!=0
+  ){
+    zWhereClause = sqlite3_mprintf("AND (%s)", zWhere);
+    if( zWhereClause==0 ){
+      sqlite3_result_error_nomem(context);
+      return;
+    }
+  }else{
+    zWhereClause = "";
+  }
+  if( argc>=5
+   && (zCollName = sqlite3_value_text(argv[4]))!=0
+   && zCollName[0]!=0 
+  ){
+    zColl = sqlite3_mprintf("collate \"%w\"", zCollName);
+    if( zColl==0 ){
+      sqlite3_result_error_nomem(context);
+      if( zWhereClause[0] ) sqlite3_free(zWhereClause);
+      return;
+    }
+  }else{
+    zColl = "";
+  }
+  zSql = sqlite3_mprintf(
+    "SELECT %s FROM %s"
+    " WHERE %s>=(?1 || ?2) %s"
+    "   AND %s<=(?1 || char(1114111)) %s" /* 1114111 == 0x10ffff */
+    "   %s"
+    " ORDER BY 1 %s ASC LIMIT 1",
+    zField, zTable, zField, zColl, zField, zColl, zWhereClause, zColl
+  );
+  if( zWhereClause[0] ) sqlite3_free(zWhereClause);
+  if( zColl[0] ) sqlite3_free(zColl);
+  if( zSql==0 ){
+    sqlite3_result_error_nomem(context);
+    return;
+  }
+
+  rc = sqlite3_prepare_v2(c.db, zSql, -1, &c.pStmt, 0);
+  sqlite3_free(zSql);
+  if( rc ){
+    sqlite3_result_error(context, sqlite3_errmsg(c.db), -1);
+    return;
+  }
+  findNextChars(&c);
+  if( c.mallocFailed ){
+    sqlite3_result_error_nomem(context);
+  }else{
+    unsigned char *pRes;
+    pRes = sqlite3_malloc64( c.nUsed*4 + 1 );
+    if( pRes==0 ){
+      sqlite3_result_error_nomem(context);
+    }else{
+      int i;
+      int n = 0;
+      for(i=0; i<c.nUsed; i++){
+        n += writeUtf8(pRes+n, c.aResult[i]);
+      }
+      pRes[n] = 0;
+      sqlite3_result_text(context, (const char*)pRes, n, sqlite3_free);
+    }
+  }
+  sqlite3_finalize(c.pStmt);
+  sqlite3_free(c.aResult);
+}
+
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_nextchar_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  int rc = SQLITE_OK;
+  SQLITE_EXTENSION_INIT2(pApi);
+  (void)pzErrMsg;  /* Unused parameter */
+  rc = sqlite3_create_function(db, "next_char", 3,
+                               SQLITE_UTF8|SQLITE_INNOCUOUS, 0,
+                               nextCharFunc, 0, 0);
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_function(db, "next_char", 4,
+                                 SQLITE_UTF8|SQLITE_INNOCUOUS, 0,
+                                 nextCharFunc, 0, 0);
+  }
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_function(db, "next_char", 5,
+                                 SQLITE_UTF8|SQLITE_INNOCUOUS, 0,
+                                 nextCharFunc, 0, 0);
+  }
+  return rc;
+}
diff --git a/ext/misc/noop.c b/ext/misc/noop.c
new file mode 100644
index 0000000000000000000000000000000000000000..18c25e10f798769bf129621dbf383008ebfad7b5
--- /dev/null
+++ b/ext/misc/noop.c
@@ -0,0 +1,90 @@
+/*
+** 2020-01-08
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This SQLite extension implements a noop() function used for testing.
+**
+** Variants:
+**
+**    noop(X)           The default.  Deterministic.
+**    noop_i(X)         Deterministic and innocuous.
+**    noop_do(X)        Deterministic and direct-only.
+**    noop_nd(X)        Non-deterministic.
+*/
+#include "sqlite3ext.h"
+SQLITE_EXTENSION_INIT1
+#include <assert.h>
+#include <string.h>
+
+/*
+** Implementation of the noop() function.
+**
+** The function returns its argument, unchanged.
+*/
+static void noopfunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  assert( argc==1 );
+  sqlite3_result_value(context, argv[0]);
+}
+
+/*
+** Implementation of the multitype_text() function.
+**
+** The function returns its argument.  The result will always have a
+** TEXT value.  But if the original input is numeric, it will also
+** have that numeric value.
+*/
+static void multitypeTextFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  assert( argc==1 );
+  (void)argc;
+  (void)sqlite3_value_text(argv[0]);
+  sqlite3_result_value(context, argv[0]);
+}
+
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_noop_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  int rc = SQLITE_OK;
+  SQLITE_EXTENSION_INIT2(pApi);
+  (void)pzErrMsg;  /* Unused parameter */
+  rc = sqlite3_create_function(db, "noop", 1,
+                     SQLITE_UTF8 | SQLITE_DETERMINISTIC,
+                     0, noopfunc, 0, 0);
+  if( rc ) return rc;
+  rc = sqlite3_create_function(db, "noop_i", 1,
+                     SQLITE_UTF8 | SQLITE_DETERMINISTIC | SQLITE_INNOCUOUS,
+                     0, noopfunc, 0, 0);
+  if( rc ) return rc;
+  rc = sqlite3_create_function(db, "noop_do", 1,
+                     SQLITE_UTF8 | SQLITE_DETERMINISTIC | SQLITE_DIRECTONLY,
+                     0, noopfunc, 0, 0);
+  if( rc ) return rc;
+  rc = sqlite3_create_function(db, "noop_nd", 1,
+                     SQLITE_UTF8,
+                     0, noopfunc, 0, 0);
+  if( rc ) return rc;
+  rc = sqlite3_create_function(db, "multitype_text", 1,
+                     SQLITE_UTF8,
+                     0, multitypeTextFunc, 0, 0);
+  return rc;
+}
diff --git a/ext/misc/normalize.c b/ext/misc/normalize.c
new file mode 100644
index 0000000000000000000000000000000000000000..08d7733b96090aab0c3d871cf36d7312a6bce2e9
--- /dev/null
+++ b/ext/misc/normalize.c
@@ -0,0 +1,716 @@
+/*
+** 2018-01-08
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This file contains code to implement the sqlite3_normalize() function.
+**
+**    char *sqlite3_normalize(const char *zSql);
+**
+** This function takes an SQL string as input and returns a "normalized"
+** version of that string in memory obtained from sqlite3_malloc64().  The
+** caller is responsible for ensuring that the returned memory is freed.
+**
+** If a memory allocation error occurs, this routine returns NULL.
+**
+** The normalization consists of the following transformations:
+**
+**   (1)  Convert every literal (string, blob literal, numeric constant,
+**        or "NULL" constant) into a ?
+**
+**   (2)  Remove all superfluous whitespace, including comments.  Change
+**        all required whitespace to a single space character.
+**
+**   (3)  Lowercase all ASCII characters.
+**
+**   (4)  If an IN or NOT IN operator is followed by a list of 1 or more
+**        values, convert that list into "(?,?,?)".
+**
+** The purpose of normalization is two-fold:
+**
+**   (1)  Sanitize queries by removing potentially private or sensitive
+**        information contained in literals.
+**
+**   (2)  Identify structurally identical queries by comparing their
+**        normalized forms.
+**
+** Command-Line Utility
+** --------------------
+**
+** This file also contains code for a command-line utility that converts
+** SQL queries in text files into their normalized forms.  To build the
+** command-line program, compile this file with -DSQLITE_NORMALIZE_CLI
+** and link it against the SQLite library.
+*/
+#include <sqlite3.h>
+#include <string.h>
+
+/*
+** Implementation note:
+**
+** Much of the tokenizer logic is copied out of the tokenize.c source file
+** of SQLite.  That logic could be simplified for this particular application,
+** but that would impose a risk of introducing subtle errors.  It is best to
+** keep the code as close to the original as possible.
+**
+** The tokenize code is in sync with the SQLite core as of 2018-01-08.
+** Any future changes to the core tokenizer might require corresponding
+** adjustments to the tokenizer logic in this module.
+*/
+
+
+/* Character classes for tokenizing
+**
+** In the sqlite3GetToken() function, a switch() on aiClass[c] is implemented
+** using a lookup table, whereas a switch() directly on c uses a binary search.
+** The lookup table is much faster.  To maximize speed, and to ensure that
+** a lookup table is used, all of the classes need to be small integers and
+** all of them need to be used within the switch.
+*/
+#define CC_X          0    /* The letter 'x', or start of BLOB literal */
+#define CC_KYWD       1    /* Alphabetics or '_'.  Usable in a keyword */
+#define CC_ID         2    /* unicode characters usable in IDs */
+#define CC_DIGIT      3    /* Digits */
+#define CC_DOLLAR     4    /* '$' */
+#define CC_VARALPHA   5    /* '@', '#', ':'.  Alphabetic SQL variables */
+#define CC_VARNUM     6    /* '?'.  Numeric SQL variables */
+#define CC_SPACE      7    /* Space characters */
+#define CC_QUOTE      8    /* '"', '\'', or '`'.  String literals, quoted ids */
+#define CC_QUOTE2     9    /* '['.   [...] style quoted ids */
+#define CC_PIPE      10    /* '|'.   Bitwise OR or concatenate */
+#define CC_MINUS     11    /* '-'.  Minus or SQL-style comment */
+#define CC_LT        12    /* '<'.  Part of < or <= or <> */
+#define CC_GT        13    /* '>'.  Part of > or >= */
+#define CC_EQ        14    /* '='.  Part of = or == */
+#define CC_BANG      15    /* '!'.  Part of != */
+#define CC_SLASH     16    /* '/'.  / or c-style comment */
+#define CC_LP        17    /* '(' */
+#define CC_RP        18    /* ')' */
+#define CC_SEMI      19    /* ';' */
+#define CC_PLUS      20    /* '+' */
+#define CC_STAR      21    /* '*' */
+#define CC_PERCENT   22    /* '%' */
+#define CC_COMMA     23    /* ',' */
+#define CC_AND       24    /* '&' */
+#define CC_TILDA     25    /* '~' */
+#define CC_DOT       26    /* '.' */
+#define CC_ILLEGAL   27    /* Illegal character */
+
+static const unsigned char aiClass[] = {
+/*         x0  x1  x2  x3  x4  x5  x6  x7  x8  x9  xa  xb  xc  xd  xe  xf */
+/* 0x */   27, 27, 27, 27, 27, 27, 27, 27, 27,  7,  7, 27,  7,  7, 27, 27,
+/* 1x */   27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27,
+/* 2x */    7, 15,  8,  5,  4, 22, 24,  8, 17, 18, 21, 20, 23, 11, 26, 16,
+/* 3x */    3,  3,  3,  3,  3,  3,  3,  3,  3,  3,  5, 19, 12, 14, 13,  6,
+/* 4x */    5,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
+/* 5x */    1,  1,  1,  1,  1,  1,  1,  1,  0,  1,  1,  9, 27, 27, 27,  1,
+/* 6x */    8,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
+/* 7x */    1,  1,  1,  1,  1,  1,  1,  1,  0,  1,  1, 27, 10, 27, 25, 27,
+/* 8x */    2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,
+/* 9x */    2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,
+/* Ax */    2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,
+/* Bx */    2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,
+/* Cx */    2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,
+/* Dx */    2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,
+/* Ex */    2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,
+/* Fx */    2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2
+};
+
+/* An array to map all upper-case characters into their corresponding
+** lower-case character. 
+**
+** SQLite only considers US-ASCII (or EBCDIC) characters.  We do not
+** handle case conversions for the UTF character set since the tables
+** involved are nearly as big or bigger than SQLite itself.
+*/
+static const unsigned char sqlite3UpperToLower[] = {
+      0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15, 16, 17,
+     18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35,
+     36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53,
+     54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 97, 98, 99,100,101,102,103,
+    104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,
+    122, 91, 92, 93, 94, 95, 96, 97, 98, 99,100,101,102,103,104,105,106,107,
+    108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,
+    126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,
+    144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,161,
+    162,163,164,165,166,167,168,169,170,171,172,173,174,175,176,177,178,179,
+    180,181,182,183,184,185,186,187,188,189,190,191,192,193,194,195,196,197,
+    198,199,200,201,202,203,204,205,206,207,208,209,210,211,212,213,214,215,
+    216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,232,233,
+    234,235,236,237,238,239,240,241,242,243,244,245,246,247,248,249,250,251,
+    252,253,254,255
+};
+
+/*
+** The following 256 byte lookup table is used to support SQLites built-in
+** equivalents to the following standard library functions:
+**
+**   isspace()                        0x01
+**   isalpha()                        0x02
+**   isdigit()                        0x04
+**   isalnum()                        0x06
+**   isxdigit()                       0x08
+**   toupper()                        0x20
+**   SQLite identifier character      0x40
+**   Quote character                  0x80
+**
+** Bit 0x20 is set if the mapped character requires translation to upper
+** case. i.e. if the character is a lower-case ASCII character.
+** If x is a lower-case ASCII character, then its upper-case equivalent
+** is (x - 0x20). Therefore toupper() can be implemented as:
+**
+**   (x & ~(map[x]&0x20))
+**
+** The equivalent of tolower() is implemented using the sqlite3UpperToLower[]
+** array. tolower() is used more often than toupper() by SQLite.
+**
+** Bit 0x40 is set if the character is non-alphanumeric and can be used in an 
+** SQLite identifier.  Identifiers are alphanumerics, "_", "$", and any
+** non-ASCII UTF character. Hence the test for whether or not a character is
+** part of an identifier is 0x46.
+*/
+static const unsigned char sqlite3CtypeMap[256] = {
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,  /* 00..07    ........ */
+  0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00,  /* 08..0f    ........ */
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,  /* 10..17    ........ */
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,  /* 18..1f    ........ */
+  0x01, 0x00, 0x80, 0x00, 0x40, 0x00, 0x00, 0x80,  /* 20..27     !"#$%&' */
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,  /* 28..2f    ()*+,-./ */
+  0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c,  /* 30..37    01234567 */
+  0x0c, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,  /* 38..3f    89:;<=>? */
+
+  0x00, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x02,  /* 40..47    @ABCDEFG */
+  0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02,  /* 48..4f    HIJKLMNO */
+  0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02,  /* 50..57    PQRSTUVW */
+  0x02, 0x02, 0x02, 0x80, 0x00, 0x00, 0x00, 0x40,  /* 58..5f    XYZ[\]^_ */
+  0x80, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x22,  /* 60..67    `abcdefg */
+  0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22,  /* 68..6f    hijklmno */
+  0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22,  /* 70..77    pqrstuvw */
+  0x22, 0x22, 0x22, 0x00, 0x00, 0x00, 0x00, 0x00,  /* 78..7f    xyz{|}~. */
+
+  0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,  /* 80..87    ........ */
+  0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,  /* 88..8f    ........ */
+  0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,  /* 90..97    ........ */
+  0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,  /* 98..9f    ........ */
+  0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,  /* a0..a7    ........ */
+  0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,  /* a8..af    ........ */
+  0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,  /* b0..b7    ........ */
+  0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,  /* b8..bf    ........ */
+
+  0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,  /* c0..c7    ........ */
+  0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,  /* c8..cf    ........ */
+  0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,  /* d0..d7    ........ */
+  0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,  /* d8..df    ........ */
+  0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,  /* e0..e7    ........ */
+  0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,  /* e8..ef    ........ */
+  0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,  /* f0..f7    ........ */
+  0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40   /* f8..ff    ........ */
+};
+#define sqlite3Toupper(x)   ((x)&~(sqlite3CtypeMap[(unsigned char)(x)]&0x20))
+#define sqlite3Isspace(x)   (sqlite3CtypeMap[(unsigned char)(x)]&0x01)
+#define sqlite3Isalnum(x)   (sqlite3CtypeMap[(unsigned char)(x)]&0x06)
+#define sqlite3Isalpha(x)   (sqlite3CtypeMap[(unsigned char)(x)]&0x02)
+#define sqlite3Isdigit(x)   (sqlite3CtypeMap[(unsigned char)(x)]&0x04)
+#define sqlite3Isxdigit(x)  (sqlite3CtypeMap[(unsigned char)(x)]&0x08)
+#define sqlite3Tolower(x)   (sqlite3UpperToLower[(unsigned char)(x)])
+#define sqlite3Isquote(x)   (sqlite3CtypeMap[(unsigned char)(x)]&0x80)
+
+
+/*
+** If X is a character that can be used in an identifier then
+** IdChar(X) will be true.  Otherwise it is false.
+**
+** For ASCII, any character with the high-order bit set is
+** allowed in an identifier.  For 7-bit characters, 
+** sqlite3IsIdChar[X] must be 1.
+**
+** For EBCDIC, the rules are more complex but have the same
+** end result.
+**
+** Ticket #1066.  the SQL standard does not allow '$' in the
+** middle of identifiers.  But many SQL implementations do. 
+** SQLite will allow '$' in identifiers for compatibility.
+** But the feature is undocumented.
+*/
+#define IdChar(C)  ((sqlite3CtypeMap[(unsigned char)C]&0x46)!=0)
+
+/*
+** Ignore testcase() macros
+*/
+#define testcase(X)
+
+/*
+** Token values
+*/
+#define TK_SPACE    0
+#define TK_NAME     1
+#define TK_LITERAL  2
+#define TK_PUNCT    3
+#define TK_ERROR    4
+
+#define TK_MINUS    TK_PUNCT
+#define TK_LP       TK_PUNCT
+#define TK_RP       TK_PUNCT
+#define TK_SEMI     TK_PUNCT
+#define TK_PLUS     TK_PUNCT
+#define TK_STAR     TK_PUNCT
+#define TK_SLASH    TK_PUNCT
+#define TK_REM      TK_PUNCT
+#define TK_EQ       TK_PUNCT
+#define TK_LE       TK_PUNCT
+#define TK_NE       TK_PUNCT
+#define TK_LSHIFT   TK_PUNCT
+#define TK_LT       TK_PUNCT
+#define TK_GE       TK_PUNCT
+#define TK_RSHIFT   TK_PUNCT
+#define TK_GT       TK_PUNCT
+#define TK_GE       TK_PUNCT
+#define TK_BITOR    TK_PUNCT
+#define TK_CONCAT   TK_PUNCT
+#define TK_COMMA    TK_PUNCT
+#define TK_BITAND   TK_PUNCT
+#define TK_BITNOT   TK_PUNCT
+#define TK_STRING   TK_LITERAL
+#define TK_ID       TK_NAME
+#define TK_ILLEGAL  TK_ERROR
+#define TK_DOT      TK_PUNCT
+#define TK_INTEGER  TK_LITERAL
+#define TK_FLOAT    TK_LITERAL
+#define TK_VARIABLE TK_LITERAL
+#define TK_BLOB     TK_LITERAL
+
+/* Disable nuisence warnings about case fall-through */
+#if !defined(deliberate_fall_through) && defined(__GCC__) && __GCC__>=7
+# define deliberate_fall_through __attribute__((fallthrough));
+#else
+# define deliberate_fall_through
+#endif
+
+/*
+** Return the length (in bytes) of the token that begins at z[0]. 
+** Store the token type in *tokenType before returning.
+*/
+static int sqlite3GetToken(const unsigned char *z, int *tokenType){
+  int i, c;
+  switch( aiClass[*z] ){  /* Switch on the character-class of the first byte
+                          ** of the token. See the comment on the CC_ defines
+                          ** above. */
+    case CC_SPACE: {
+      for(i=1; sqlite3Isspace(z[i]); i++){}
+      *tokenType = TK_SPACE;
+      return i;
+    }
+    case CC_MINUS: {
+      if( z[1]=='-' ){
+        for(i=2; (c=z[i])!=0 && c!='\n'; i++){}
+        *tokenType = TK_SPACE;
+        return i;
+      }
+      *tokenType = TK_MINUS;
+      return 1;
+    }
+    case CC_LP: {
+      *tokenType = TK_LP;
+      return 1;
+    }
+    case CC_RP: {
+      *tokenType = TK_RP;
+      return 1;
+    }
+    case CC_SEMI: {
+      *tokenType = TK_SEMI;
+      return 1;
+    }
+    case CC_PLUS: {
+      *tokenType = TK_PLUS;
+      return 1;
+    }
+    case CC_STAR: {
+      *tokenType = TK_STAR;
+      return 1;
+    }
+    case CC_SLASH: {
+      if( z[1]!='*' || z[2]==0 ){
+        *tokenType = TK_SLASH;
+        return 1;
+      }
+      for(i=3, c=z[2]; (c!='*' || z[i]!='/') && (c=z[i])!=0; i++){}
+      if( c ) i++;
+      *tokenType = TK_SPACE;
+      return i;
+    }
+    case CC_PERCENT: {
+      *tokenType = TK_REM;
+      return 1;
+    }
+    case CC_EQ: {
+      *tokenType = TK_EQ;
+      return 1 + (z[1]=='=');
+    }
+    case CC_LT: {
+      if( (c=z[1])=='=' ){
+        *tokenType = TK_LE;
+        return 2;
+      }else if( c=='>' ){
+        *tokenType = TK_NE;
+        return 2;
+      }else if( c=='<' ){
+        *tokenType = TK_LSHIFT;
+        return 2;
+      }else{
+        *tokenType = TK_LT;
+        return 1;
+      }
+    }
+    case CC_GT: {
+      if( (c=z[1])=='=' ){
+        *tokenType = TK_GE;
+        return 2;
+      }else if( c=='>' ){
+        *tokenType = TK_RSHIFT;
+        return 2;
+      }else{
+        *tokenType = TK_GT;
+        return 1;
+      }
+    }
+    case CC_BANG: {
+      if( z[1]!='=' ){
+        *tokenType = TK_ILLEGAL;
+        return 1;
+      }else{
+        *tokenType = TK_NE;
+        return 2;
+      }
+    }
+    case CC_PIPE: {
+      if( z[1]!='|' ){
+        *tokenType = TK_BITOR;
+        return 1;
+      }else{
+        *tokenType = TK_CONCAT;
+        return 2;
+      }
+    }
+    case CC_COMMA: {
+      *tokenType = TK_COMMA;
+      return 1;
+    }
+    case CC_AND: {
+      *tokenType = TK_BITAND;
+      return 1;
+    }
+    case CC_TILDA: {
+      *tokenType = TK_BITNOT;
+      return 1;
+    }
+    case CC_QUOTE: {
+      int delim = z[0];
+      testcase( delim=='`' );
+      testcase( delim=='\'' );
+      testcase( delim=='"' );
+      for(i=1; (c=z[i])!=0; i++){
+        if( c==delim ){
+          if( z[i+1]==delim ){
+            i++;
+          }else{
+            break;
+          }
+        }
+      }
+      if( c=='\'' ){
+        *tokenType = TK_STRING;
+        return i+1;
+      }else if( c!=0 ){
+        *tokenType = TK_ID;
+        return i+1;
+      }else{
+        *tokenType = TK_ILLEGAL;
+        return i;
+      }
+    }
+    case CC_DOT: {
+      if( !sqlite3Isdigit(z[1]) ){
+        *tokenType = TK_DOT;
+        return 1;
+      }
+      /* If the next character is a digit, this is a floating point
+      ** number that begins with ".".  Fall thru into the next case */
+      /* no break */ deliberate_fall_through
+    }
+    case CC_DIGIT: {
+      *tokenType = TK_INTEGER;
+      if( z[0]=='0' && (z[1]=='x' || z[1]=='X') && sqlite3Isxdigit(z[2]) ){
+        for(i=3; sqlite3Isxdigit(z[i]); i++){}
+        return i;
+      }
+      for(i=0; sqlite3Isdigit(z[i]); i++){}
+      if( z[i]=='.' ){
+        i++;
+        while( sqlite3Isdigit(z[i]) ){ i++; }
+        *tokenType = TK_FLOAT;
+      }
+      if( (z[i]=='e' || z[i]=='E') &&
+           ( sqlite3Isdigit(z[i+1]) 
+            || ((z[i+1]=='+' || z[i+1]=='-') && sqlite3Isdigit(z[i+2]))
+           )
+      ){
+        i += 2;
+        while( sqlite3Isdigit(z[i]) ){ i++; }
+        *tokenType = TK_FLOAT;
+      }
+      while( IdChar(z[i]) ){
+        *tokenType = TK_ILLEGAL;
+        i++;
+      }
+      return i;
+    }
+    case CC_QUOTE2: {
+      for(i=1, c=z[0]; c!=']' && (c=z[i])!=0; i++){}
+      *tokenType = c==']' ? TK_ID : TK_ILLEGAL;
+      return i;
+    }
+    case CC_VARNUM: {
+      *tokenType = TK_VARIABLE;
+      for(i=1; sqlite3Isdigit(z[i]); i++){}
+      return i;
+    }
+    case CC_DOLLAR:
+    case CC_VARALPHA: {
+      int n = 0;
+      testcase( z[0]=='$' );  testcase( z[0]=='@' );
+      testcase( z[0]==':' );  testcase( z[0]=='#' );
+      *tokenType = TK_VARIABLE;
+      for(i=1; (c=z[i])!=0; i++){
+        if( IdChar(c) ){
+          n++;
+        }else if( c=='(' && n>0 ){
+          do{
+            i++;
+          }while( (c=z[i])!=0 && !sqlite3Isspace(c) && c!=')' );
+          if( c==')' ){
+            i++;
+          }else{
+            *tokenType = TK_ILLEGAL;
+          }
+          break;
+        }else if( c==':' && z[i+1]==':' ){
+          i++;
+        }else{
+          break;
+        }
+      }
+      if( n==0 ) *tokenType = TK_ILLEGAL;
+      return i;
+    }
+    case CC_KYWD: {
+      for(i=1; aiClass[z[i]]<=CC_KYWD; i++){}
+      if( IdChar(z[i]) ){
+        /* This token started out using characters that can appear in keywords,
+        ** but z[i] is a character not allowed within keywords, so this must
+        ** be an identifier instead */
+        i++;
+        break;
+      }
+      *tokenType = TK_ID;
+      return i;
+    }
+    case CC_X: {
+      testcase( z[0]=='x' ); testcase( z[0]=='X' );
+      if( z[1]=='\'' ){
+        *tokenType = TK_BLOB;
+        for(i=2; sqlite3Isxdigit(z[i]); i++){}
+        if( z[i]!='\'' || i%2 ){
+          *tokenType = TK_ILLEGAL;
+          while( z[i] && z[i]!='\'' ){ i++; }
+        }
+        if( z[i] ) i++;
+        return i;
+      }
+      /* If it is not a BLOB literal, then it must be an ID, since no
+      ** SQL keywords start with the letter 'x'.  Fall through */
+      /* no break */ deliberate_fall_through
+    }
+    case CC_ID: {
+      i = 1;
+      break;
+    }
+    default: {
+      *tokenType = TK_ILLEGAL;
+      return 1;
+    }
+  }
+  while( IdChar(z[i]) ){ i++; }
+  *tokenType = TK_ID;
+  return i;
+}
+
+char *sqlite3_normalize(const char *zSql){
+  char *z;              /* The output string */
+  sqlite3_int64 nZ;     /* Size of the output string in bytes */
+  sqlite3_int64 nSql;   /* Size of the input string in bytes */
+  int i;                /* Next character to read from zSql[] */
+  int j;                /* Next slot to fill in on z[] */
+  int tokenType;        /* Type of the next token */
+  int n;                /* Size of the next token */
+  int k;                /* Loop counter */
+
+  nSql = strlen(zSql);
+  nZ = nSql;
+  z = sqlite3_malloc64( nZ+2 );
+  if( z==0 ) return 0;
+  for(i=j=0; zSql[i]; i += n){
+    n = sqlite3GetToken((unsigned char*)zSql+i, &tokenType);
+    switch( tokenType ){
+      case TK_SPACE: {
+        break;
+      }
+      case TK_ERROR: {
+        sqlite3_free(z);
+        return 0;
+      }
+      case TK_LITERAL: {
+        z[j++] = '?';
+        break;
+      }
+      case TK_PUNCT:
+      case TK_NAME: {
+        if( n==4 && sqlite3_strnicmp(zSql+i,"NULL",4)==0 ){
+          if( (j>=3 && strncmp(z+j-2,"is",2)==0 && !IdChar(z[j-3]))
+           || (j>=4 && strncmp(z+j-3,"not",3)==0 && !IdChar(z[j-4]))
+          ){
+            /* NULL is a keyword in this case, not a literal value */
+          }else{
+            /* Here the NULL is a literal value */
+            z[j++] = '?';
+            break;
+          }
+        }
+        if( j>0 && IdChar(z[j-1]) && IdChar(zSql[i]) ) z[j++] = ' ';
+        for(k=0; k<n; k++){
+          z[j++] = sqlite3Tolower(zSql[i+k]);
+        }
+        break;
+      }
+    }
+  }
+  while( j>0 && z[j-1]==' ' ){ j--; }
+  if( j>0 && z[j-1]!=';' ){ z[j++] = ';'; }
+  z[j] = 0;
+
+  /* Make a second pass converting "in(...)" where the "..." is not a
+  ** SELECT statement into "in(?,?,?)" */
+  for(i=0; i<j; i=n){
+    char *zIn = strstr(z+i, "in(");
+    int nParen;
+    if( zIn==0 ) break;
+    n = (int)(zIn-z)+3;  /* Index of first char past "in(" */
+    if( n && IdChar(zIn[-1]) ) continue;
+    if( strncmp(zIn, "in(select",9)==0 && !IdChar(zIn[9]) ) continue;
+    if( strncmp(zIn, "in(with",7)==0 && !IdChar(zIn[7]) ) continue;
+    for(nParen=1, k=0; z[n+k]; k++){
+      if( z[n+k]=='(' ) nParen++;
+      if( z[n+k]==')' ){
+        nParen--;
+        if( nParen==0 ) break;
+      }
+    }
+    /* k is the number of bytes in the "..." within "in(...)" */
+    if( k<5 ){
+      z = sqlite3_realloc64(z, j+(5-k)+1);
+      if( z==0 ) return 0;
+      memmove(z+n+5, z+n+k, j-(n+k));
+    }else if( k>5 ){
+      memmove(z+n+5, z+n+k, j-(n+k));
+    }
+    j = j-k+5;
+    z[j] = 0;
+    memcpy(z+n, "?,?,?", 5);
+  }
+  return z;
+}
+
+/*
+** For testing purposes, or to build a stand-alone SQL normalizer program,
+** compile this one source file with the -DSQLITE_NORMALIZE_CLI and link
+** it against any SQLite library.  The resulting command-line program will
+** run sqlite3_normalize() over the text of all files named on the command-
+** line and show the result on standard output.
+*/
+#ifdef SQLITE_NORMALIZE_CLI
+#include <stdio.h>
+#include <stdlib.h>
+
+/*
+** Break zIn up into separate SQL statements and run sqlite3_normalize()
+** on each one.  Print the result of each run.
+*/
+static void normalizeFile(char *zIn){
+  int i;
+  if( zIn==0 ) return;
+  for(i=0; zIn[i]; i++){
+    char cSaved;
+    if( zIn[i]!=';' ) continue;
+    cSaved = zIn[i+1];
+    zIn[i+1] = 0;
+    if( sqlite3_complete(zIn) ){
+      char *zOut = sqlite3_normalize(zIn);
+      if( zOut ){
+        printf("%s\n", zOut);
+        sqlite3_free(zOut);
+      }else{
+        fprintf(stderr, "ERROR: %s\n", zIn);
+      }
+      zIn[i+1] = cSaved;
+      zIn += i+1;
+      i = -1;
+    }else{
+      zIn[i+1] = cSaved;
+    }
+  }
+}
+
+/*
+** The main routine for "sql_normalize".  Read files named on the
+** command-line and run the text of each through sqlite3_normalize().
+*/
+int main(int argc, char **argv){
+  int i;
+  FILE *in;
+  char *zBuf = 0;
+  sqlite3_int64 sz, got;
+
+  for(i=1; i<argc; i++){
+    in = fopen(argv[i], "rb");
+    if( in==0 ){
+      fprintf(stderr, "cannot open \"%s\"\n", argv[i]);
+      continue;
+    }
+    fseek(in, 0, SEEK_END);
+    sz = ftell(in);
+    rewind(in);
+    zBuf = sqlite3_realloc64(zBuf, sz+1);
+    if( zBuf==0 ){
+      fprintf(stderr, "failed to malloc for %lld bytes\n", sz);
+      exit(1);
+    }
+    got = fread(zBuf, 1, sz, in);
+    fclose(in);
+    if( got!=sz ){
+      fprintf(stderr, "only able to read %lld of %lld bytes from \"%s\"\n",
+              got, sz, argv[i]);
+    }else{
+      zBuf[got] = 0;
+      normalizeFile(zBuf);
+    }
+  }
+  sqlite3_free(zBuf);
+}
+#endif /* SQLITE_NORMALIZE_CLI */
diff --git a/ext/misc/pcachetrace.c b/ext/misc/pcachetrace.c
new file mode 100644
index 0000000000000000000000000000000000000000..3757d8d4d56351c42c98355dc54ae10f5d2c4b5d
--- /dev/null
+++ b/ext/misc/pcachetrace.c
@@ -0,0 +1,179 @@
+/*
+** 2023-06-21
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** This file implements an extension that uses the SQLITE_CONFIG_PCACHE2
+** mechanism to add a tracing layer on top of pluggable page cache of
+** SQLite.  If this extension is registered prior to sqlite3_initialize(),
+** it will cause all page cache activities to be logged on standard output,
+** or to some other FILE specified by the initializer.
+**
+** This file needs to be compiled into the application that uses it.
+**
+** This extension is used to implement the --pcachetrace option of the
+** command-line shell.
+*/
+#include <assert.h>
+#include <string.h>
+#include <stdio.h>
+
+/* The original page cache routines */
+static sqlite3_pcache_methods2 pcacheBase;
+static FILE *pcachetraceOut;
+
+/* Methods that trace pcache activity */
+static int pcachetraceInit(void *pArg){
+  int nRes;
+  if( pcachetraceOut ){
+    fprintf(pcachetraceOut, "PCACHETRACE: xInit(%p)\n", pArg);
+  }
+  nRes = pcacheBase.xInit(pArg);
+  if( pcachetraceOut ){
+    fprintf(pcachetraceOut, "PCACHETRACE: xInit(%p) -> %d\n", pArg, nRes);
+  }
+  return nRes;
+}
+static void pcachetraceShutdown(void *pArg){
+  if( pcachetraceOut ){
+    fprintf(pcachetraceOut, "PCACHETRACE: xShutdown(%p)\n", pArg);
+  }
+  pcacheBase.xShutdown(pArg);
+}
+static sqlite3_pcache *pcachetraceCreate(int szPage, int szExtra, int bPurge){
+  sqlite3_pcache *pRes;
+  if( pcachetraceOut ){
+    fprintf(pcachetraceOut, "PCACHETRACE: xCreate(%d,%d,%d)\n",
+            szPage, szExtra, bPurge);
+  }
+  pRes = pcacheBase.xCreate(szPage, szExtra, bPurge);
+  if( pcachetraceOut ){
+    fprintf(pcachetraceOut, "PCACHETRACE: xCreate(%d,%d,%d) -> %p\n",
+            szPage, szExtra, bPurge, pRes);
+  }
+  return pRes;
+}
+static void pcachetraceCachesize(sqlite3_pcache *p, int nCachesize){
+  if( pcachetraceOut ){
+    fprintf(pcachetraceOut, "PCACHETRACE: xCachesize(%p, %d)\n", p, nCachesize);
+  }
+  pcacheBase.xCachesize(p, nCachesize);
+}
+static int pcachetracePagecount(sqlite3_pcache *p){
+  int nRes;
+  if( pcachetraceOut ){
+    fprintf(pcachetraceOut, "PCACHETRACE: xPagecount(%p)\n", p);
+  }
+  nRes = pcacheBase.xPagecount(p);
+  if( pcachetraceOut ){
+    fprintf(pcachetraceOut, "PCACHETRACE: xPagecount(%p) -> %d\n", p, nRes);
+  }
+  return nRes;
+}
+static sqlite3_pcache_page *pcachetraceFetch(
+  sqlite3_pcache *p,
+  unsigned key,
+  int crFg
+){
+  sqlite3_pcache_page *pRes;
+  if( pcachetraceOut ){
+    fprintf(pcachetraceOut, "PCACHETRACE: xFetch(%p,%u,%d)\n", p, key, crFg);
+  }
+  pRes = pcacheBase.xFetch(p, key, crFg);
+  if( pcachetraceOut ){
+    fprintf(pcachetraceOut, "PCACHETRACE: xFetch(%p,%u,%d) -> %p\n",
+            p, key, crFg, pRes);
+  }
+  return pRes;
+}
+static void pcachetraceUnpin(
+  sqlite3_pcache *p,
+  sqlite3_pcache_page *pPg,
+  int bDiscard
+){
+  if( pcachetraceOut ){
+    fprintf(pcachetraceOut, "PCACHETRACE: xUnpin(%p, %p, %d)\n",
+            p, pPg, bDiscard);
+  }
+  pcacheBase.xUnpin(p, pPg, bDiscard);
+}
+static void pcachetraceRekey(
+  sqlite3_pcache *p,
+  sqlite3_pcache_page *pPg,
+  unsigned oldKey,
+  unsigned newKey
+){
+  if( pcachetraceOut ){
+    fprintf(pcachetraceOut, "PCACHETRACE: xRekey(%p, %p, %u, %u)\n",
+        p, pPg, oldKey, newKey);
+  }
+  pcacheBase.xRekey(p, pPg, oldKey, newKey);
+}
+static void pcachetraceTruncate(sqlite3_pcache *p, unsigned n){
+  if( pcachetraceOut ){
+    fprintf(pcachetraceOut, "PCACHETRACE: xTruncate(%p, %u)\n", p, n);
+  }
+  pcacheBase.xTruncate(p, n);
+}
+static void pcachetraceDestroy(sqlite3_pcache *p){
+  if( pcachetraceOut ){
+    fprintf(pcachetraceOut, "PCACHETRACE: xDestroy(%p)\n", p);
+  }
+  pcacheBase.xDestroy(p);
+}
+static void pcachetraceShrink(sqlite3_pcache *p){
+  if( pcachetraceOut ){
+    fprintf(pcachetraceOut, "PCACHETRACE: xShrink(%p)\n", p);
+  }
+  pcacheBase.xShrink(p);
+}
+
+/* The substitute pcache methods */
+static sqlite3_pcache_methods2 ersaztPcacheMethods = {
+  0,
+  0,
+  pcachetraceInit,
+  pcachetraceShutdown,
+  pcachetraceCreate,
+  pcachetraceCachesize,
+  pcachetracePagecount,
+  pcachetraceFetch,
+  pcachetraceUnpin,
+  pcachetraceRekey,
+  pcachetraceTruncate,
+  pcachetraceDestroy,
+  pcachetraceShrink
+};
+
+/* Begin tracing memory allocations to out. */
+int sqlite3PcacheTraceActivate(FILE *out){
+  int rc = SQLITE_OK;
+  if( pcacheBase.xFetch==0 ){
+    rc = sqlite3_config(SQLITE_CONFIG_GETPCACHE2, &pcacheBase);
+    if( rc==SQLITE_OK ){
+      rc = sqlite3_config(SQLITE_CONFIG_PCACHE2, &ersaztPcacheMethods);
+    }
+  }
+  pcachetraceOut = out;
+  return rc;
+}
+
+/* Deactivate memory tracing */
+int sqlite3PcacheTraceDeactivate(void){
+  int rc = SQLITE_OK;
+  if( pcacheBase.xFetch!=0 ){
+    rc = sqlite3_config(SQLITE_CONFIG_PCACHE2, &pcacheBase);
+    if( rc==SQLITE_OK ){
+      memset(&pcacheBase, 0, sizeof(pcacheBase));
+    }
+  }
+  pcachetraceOut = 0;
+  return rc;
+}
diff --git a/ext/misc/percentile.c b/ext/misc/percentile.c
new file mode 100644
index 0000000000000000000000000000000000000000..06865185df506010960f66d2248e6dbf8f4f043d
--- /dev/null
+++ b/ext/misc/percentile.c
@@ -0,0 +1,503 @@
+/*
+** 2013-05-28
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This file contains code to implement the percentile(Y,P) SQL function
+** and similar as described below:
+**
+**   (1)  The percentile(Y,P) function is an aggregate function taking
+**        exactly two arguments.
+**
+**   (2)  If the P argument to percentile(Y,P) is not the same for every
+**        row in the aggregate then an error is thrown.  The word "same"
+**        in the previous sentence means that the value differ by less
+**        than 0.001.
+**
+**   (3)  If the P argument to percentile(Y,P) evaluates to anything other
+**        than a number in the range of 0.0 to 100.0 inclusive then an
+**        error is thrown.
+**
+**   (4)  If any Y argument to percentile(Y,P) evaluates to a value that
+**        is not NULL and is not numeric then an error is thrown.
+**
+**   (5)  If any Y argument to percentile(Y,P) evaluates to plus or minus
+**        infinity then an error is thrown.  (SQLite always interprets NaN
+**        values as NULL.)
+**
+**   (6)  Both Y and P in percentile(Y,P) can be arbitrary expressions,
+**        including CASE WHEN expressions.
+**
+**   (7)  The percentile(Y,P) aggregate is able to handle inputs of at least
+**        one million (1,000,000) rows.
+**
+**   (8)  If there are no non-NULL values for Y, then percentile(Y,P)
+**        returns NULL.
+**
+**   (9)  If there is exactly one non-NULL value for Y, the percentile(Y,P)
+**        returns the one Y value.
+**
+**  (10)  If there N non-NULL values of Y where N is two or more and
+**        the Y values are ordered from least to greatest and a graph is
+**        drawn from 0 to N-1 such that the height of the graph at J is
+**        the J-th Y value and such that straight lines are drawn between
+**        adjacent Y values, then the percentile(Y,P) function returns
+**        the height of the graph at P*(N-1)/100.
+**
+**  (11)  The percentile(Y,P) function always returns either a floating
+**        point number or NULL.
+**
+**  (12)  The percentile(Y,P) is implemented as a single C99 source-code
+**        file that compiles into a shared-library or DLL that can be loaded
+**        into SQLite using the sqlite3_load_extension() interface.
+**
+**  (13)  A separate median(Y) function is the equivalent percentile(Y,50).
+**
+**  (14)  A separate percentile_cont(Y,P) function is equivalent to
+**        percentile(Y,P/100.0).  In other words, the fraction value in
+**        the second argument is in the range of 0 to 1 instead of 0 to 100.
+**
+**  (15)  A separate percentile_disc(Y,P) function is like
+**        percentile_cont(Y,P) except that instead of returning the weighted
+**        average of the nearest two input values, it returns the next lower
+**        value.  So the percentile_disc(Y,P) will always return a value
+**        that was one of the inputs.
+**
+**  (16)  All of median(), percentile(Y,P), percentile_cont(Y,P) and
+**        percentile_disc(Y,P) can be used as window functions.
+**
+** Differences from standard SQL:
+**
+**  *  The percentile_cont(X,P) function is equivalent to the following in
+**     standard SQL:
+**
+**         (percentile_cont(P) WITHIN GROUP (ORDER BY X))
+**
+**     The SQLite syntax is much more compact.  The standard SQL syntax
+**     is also supported if SQLite is compiled with the
+**     -DSQLITE_ENABLE_ORDERED_SET_AGGREGATES option.
+**
+**  *  No median(X) function exists in the SQL standard.  App developers
+**     are expected to write "percentile_cont(0.5)WITHIN GROUP(ORDER BY X)".
+**
+**  *  No percentile(Y,P) function exists in the SQL standard.  Instead of
+**     percential(Y,P), developers must write this:
+**     "percentile_cont(P/100.0) WITHIN GROUP (ORDER BY Y)".  Note that
+**     the fraction parameter to percentile() goes from 0 to 100 whereas
+**     the fraction parameter in SQL standard percentile_cont() goes from
+**     0 to 1.
+**
+** Implementation notes as of 2024-08-31:
+**
+**  *  The regular aggregate-function versions of these routines work
+**     by accumulating all values in an array of doubles, then sorting
+**     that array using quicksort before computing the answer. Thus
+**     the runtime is O(NlogN) where N is the number of rows of input.
+**
+**  *  For the window-function versions of these routines, the array of
+**     inputs is sorted as soon as the first value is computed.  Thereafter,
+**     the array is kept in sorted order using an insert-sort.  This
+**     results in O(N*K) performance where K is the size of the window.
+**     One can imagine alternative implementations that give O(N*logN*logK)
+**     performance, but they require more complex logic and data structures.
+**     The developers have elected to keep the asymptotically slower
+**     algorithm for now, for simplicity, under the theory that window
+**     functions are seldom used and when they are, the window size K is
+**     often small.  The developers might revisit that decision later,
+**     should the need arise.
+*/
+#if defined(SQLITE3_H)
+  /* no-op */
+#elif defined(SQLITE_STATIC_PERCENTILE)
+#  include "sqlite3.h"
+#else
+#  include "sqlite3ext.h"
+   SQLITE_EXTENSION_INIT1
+#endif
+#include <assert.h>
+#include <string.h>
+#include <stdlib.h>
+
+/* The following object is the group context for a single percentile()
+** aggregate.  Remember all input Y values until the very end.
+** Those values are accumulated in the Percentile.a[] array.
+*/
+typedef struct Percentile Percentile;
+struct Percentile {
+  unsigned nAlloc;     /* Number of slots allocated for a[] */
+  unsigned nUsed;      /* Number of slots actually used in a[] */
+  char bSorted;        /* True if a[] is already in sorted order */
+  char bKeepSorted;    /* True if advantageous to keep a[] sorted */
+  char bPctValid;      /* True if rPct is valid */
+  double rPct;         /* Fraction.  0.0 to 1.0 */
+  double *a;           /* Array of Y values */
+};
+
+/* Details of each function in the percentile family */
+typedef struct PercentileFunc PercentileFunc;
+struct PercentileFunc {
+  const char *zName;   /* Function name */
+  char nArg;           /* Number of arguments */
+  char mxFrac;         /* Maximum value of the "fraction" input */
+  char bDiscrete;      /* True for percentile_disc() */
+};
+static const PercentileFunc aPercentFunc[] = {
+  { "median",           1,   1, 0 },
+  { "percentile",       2, 100, 0 },
+  { "percentile_cont",  2,   1, 0 },
+  { "percentile_disc",  2,   1, 1 },
+};
+
+/*
+** Return TRUE if the input floating-point number is an infinity.
+*/
+static int percentIsInfinity(double r){
+  sqlite3_uint64 u;
+  assert( sizeof(u)==sizeof(r) );
+  memcpy(&u, &r, sizeof(u));
+  return ((u>>52)&0x7ff)==0x7ff;
+}
+
+/*
+** Return TRUE if two doubles differ by 0.001 or less.
+*/
+static int percentSameValue(double a, double b){
+  a -= b;
+  return a>=-0.001 && a<=0.001;
+}
+
+/*
+** Search p (which must have p->bSorted) looking for an entry with
+** value y.  Return the index of that entry.
+**
+** If bExact is true, return -1 if the entry is not found.
+**
+** If bExact is false, return the index at which a new entry with
+** value y should be insert in order to keep the values in sorted
+** order.  The smallest return value in this case will be 0, and
+** the largest return value will be p->nUsed.
+*/
+static int percentBinarySearch(Percentile *p, double y, int bExact){
+  int iFirst = 0;              /* First element of search range */
+  int iLast = p->nUsed - 1;    /* Last element of search range */
+  while( iLast>=iFirst ){
+    int iMid = (iFirst+iLast)/2;
+    double x = p->a[iMid];
+    if( x<y ){
+      iFirst = iMid + 1;
+    }else if( x>y ){
+      iLast = iMid - 1;
+    }else{
+      return iMid;
+    }
+  }
+  if( bExact ) return -1;
+  return iFirst;
+}
+
+/*
+** Generate an error for a percentile function.
+**
+** The error format string must have exactly one occurrance of "%%s()"
+** (with two '%' characters).  That substring will be replaced by the name
+** of the function.
+*/
+static void percentError(sqlite3_context *pCtx, const char *zFormat, ...){
+  PercentileFunc *pFunc = (PercentileFunc*)sqlite3_user_data(pCtx);
+  char *zMsg1;
+  char *zMsg2;
+  va_list ap;
+
+  va_start(ap, zFormat);
+  zMsg1 = sqlite3_vmprintf(zFormat, ap);
+  va_end(ap);
+  zMsg2 = zMsg1 ? sqlite3_mprintf(zMsg1, pFunc->zName) : 0;
+  sqlite3_result_error(pCtx, zMsg2, -1);
+  sqlite3_free(zMsg1);
+  sqlite3_free(zMsg2);
+}
+
+/*
+** The "step" function for percentile(Y,P) is called once for each
+** input row.
+*/
+static void percentStep(sqlite3_context *pCtx, int argc, sqlite3_value **argv){
+  Percentile *p;
+  double rPct;
+  int eType;
+  double y;
+  assert( argc==2 || argc==1 );
+
+  if( argc==1 ){
+    /* Requirement 13:  median(Y) is the same as percentile(Y,50). */
+    rPct = 0.5;
+  }else{
+    /* Requirement 3:  P must be a number between 0 and 100 */
+    PercentileFunc *pFunc = (PercentileFunc*)sqlite3_user_data(pCtx);
+    eType = sqlite3_value_numeric_type(argv[1]);
+    rPct = sqlite3_value_double(argv[1])/(double)pFunc->mxFrac;
+    if( (eType!=SQLITE_INTEGER && eType!=SQLITE_FLOAT)
+     || rPct<0.0 || rPct>1.0
+    ){
+      percentError(pCtx, "the fraction argument to %%s()"
+                        " is not between 0.0 and %.1f",
+                        (double)pFunc->mxFrac);
+      return;
+    }
+  }
+
+  /* Allocate the session context. */
+  p = (Percentile*)sqlite3_aggregate_context(pCtx, sizeof(*p));
+  if( p==0 ) return;
+
+  /* Remember the P value.  Throw an error if the P value is different
+  ** from any prior row, per Requirement (2). */
+  if( !p->bPctValid ){
+    p->rPct = rPct;
+    p->bPctValid = 1;
+  }else if( !percentSameValue(p->rPct,rPct) ){
+    percentError(pCtx, "the fraction argument to %%s()"
+                      " is not the same for all input rows");
+    return;
+  }
+
+  /* Ignore rows for which Y is NULL */
+  eType = sqlite3_value_type(argv[0]);
+  if( eType==SQLITE_NULL ) return;
+
+  /* If not NULL, then Y must be numeric.  Otherwise throw an error.
+  ** Requirement 4 */
+  if( eType!=SQLITE_INTEGER && eType!=SQLITE_FLOAT ){
+    percentError(pCtx, "input to %%s() is not numeric");
+    return;
+  }
+
+  /* Throw an error if the Y value is infinity or NaN */
+  y = sqlite3_value_double(argv[0]);
+  if( percentIsInfinity(y) ){
+    percentError(pCtx, "Inf input to %%s()");
+    return;
+  }
+
+  /* Allocate and store the Y */
+  if( p->nUsed>=p->nAlloc ){
+    unsigned n = p->nAlloc*2 + 250;
+    double *a = sqlite3_realloc64(p->a, sizeof(double)*n);
+    if( a==0 ){
+      sqlite3_free(p->a);
+      memset(p, 0, sizeof(*p));
+      sqlite3_result_error_nomem(pCtx);
+      return;
+    }
+    p->nAlloc = n;
+    p->a = a;
+  }
+  if( p->nUsed==0 ){
+    p->a[p->nUsed++] = y;
+    p->bSorted = 1;
+  }else if( !p->bSorted || y>=p->a[p->nUsed-1] ){
+    p->a[p->nUsed++] = y;
+  }else if( p->bKeepSorted ){
+    int i;
+    i = percentBinarySearch(p, y, 0);
+    if( i<(int)p->nUsed ){
+      memmove(&p->a[i+1], &p->a[i], (p->nUsed-i)*sizeof(p->a[0]));
+    }
+    p->a[i] = y;
+    p->nUsed++;
+  }else{
+    p->a[p->nUsed++] = y;
+    p->bSorted = 0;
+  }
+}
+
+/*
+** Interchange two doubles.
+*/
+#define SWAP_DOUBLE(X,Y)  {double ttt=(X);(X)=(Y);(Y)=ttt;}
+
+/*
+** Sort an array of doubles.
+**
+** Algorithm: quicksort
+**
+** This is implemented separately rather than using the qsort() routine
+** from the standard library because:
+**
+**    (1)  To avoid a dependency on qsort()
+**    (2)  To avoid the function call to the comparison routine for each
+**         comparison.
+*/
+static void percentSort(double *a, unsigned int n){
+  int iLt;  /* Entries before a[iLt] are less than rPivot */
+  int iGt;  /* Entries at or after a[iGt] are greater than rPivot */
+  int i;         /* Loop counter */
+  double rPivot; /* The pivot value */
+  
+  assert( n>=2 );
+  if( a[0]>a[n-1] ){
+    SWAP_DOUBLE(a[0],a[n-1])
+  }
+  if( n==2 ) return;
+  iGt = n-1;
+  i = n/2;
+  if( a[0]>a[i] ){
+    SWAP_DOUBLE(a[0],a[i])
+  }else if( a[i]>a[iGt] ){
+    SWAP_DOUBLE(a[i],a[iGt])
+  }
+  if( n==3 ) return;
+  rPivot = a[i];
+  iLt = i = 1;
+  do{
+    if( a[i]<rPivot ){
+      if( i>iLt ) SWAP_DOUBLE(a[i],a[iLt])
+      iLt++;
+      i++;
+    }else if( a[i]>rPivot ){
+      do{
+        iGt--;
+      }while( iGt>i && a[iGt]>rPivot );
+      SWAP_DOUBLE(a[i],a[iGt])
+    }else{
+      i++;
+    }
+  }while( i<iGt );
+  if( iLt>=2 ) percentSort(a, iLt);
+  if( n-iGt>=2 ) percentSort(a+iGt, n-iGt);
+    
+/* Uncomment for testing */
+#if 0
+  for(i=0; i<n-1; i++){
+    assert( a[i]<=a[i+1] );
+  }
+#endif
+}
+
+
+/*
+** The "inverse" function for percentile(Y,P) is called to remove a
+** row that was previously inserted by "step".
+*/
+static void percentInverse(sqlite3_context *pCtx,int argc,sqlite3_value **argv){
+  Percentile *p;
+  int eType;
+  double y;
+  int i;
+  assert( argc==2 || argc==1 );
+
+  /* Allocate the session context. */
+  p = (Percentile*)sqlite3_aggregate_context(pCtx, sizeof(*p));
+  assert( p!=0 );
+
+  /* Ignore rows for which Y is NULL */
+  eType = sqlite3_value_type(argv[0]);
+  if( eType==SQLITE_NULL ) return;
+
+  /* If not NULL, then Y must be numeric.  Otherwise throw an error.
+  ** Requirement 4 */
+  if( eType!=SQLITE_INTEGER && eType!=SQLITE_FLOAT ){
+    return;
+  }
+
+  /* Ignore the Y value if it is infinity or NaN */
+  y = sqlite3_value_double(argv[0]);
+  if( percentIsInfinity(y) ){
+    return;
+  }
+  if( p->bSorted==0 ){
+    assert( p->nUsed>1 );
+    percentSort(p->a, p->nUsed);
+    p->bSorted = 1;
+  }
+  p->bKeepSorted = 1;
+
+  /* Find and remove the row */
+  i = percentBinarySearch(p, y, 1);
+  if( i>=0 ){
+    p->nUsed--;
+    if( i<(int)p->nUsed ){
+      memmove(&p->a[i], &p->a[i+1], (p->nUsed - i)*sizeof(p->a[0]));
+    }
+  }
+}
+
+/*
+** Compute the final output of percentile().  Clean up all allocated
+** memory if and only if bIsFinal is true.
+*/
+static void percentCompute(sqlite3_context *pCtx, int bIsFinal){
+  Percentile *p;
+  PercentileFunc *pFunc = (PercentileFunc*)sqlite3_user_data(pCtx);
+  unsigned i1, i2;
+  double v1, v2;
+  double ix, vx;
+  p = (Percentile*)sqlite3_aggregate_context(pCtx, 0);
+  if( p==0 ) return;
+  if( p->a==0 ) return;
+  if( p->nUsed ){
+    if( p->bSorted==0 ){
+      assert( p->nUsed>1 );
+      percentSort(p->a, p->nUsed);
+      p->bSorted = 1;
+    }
+    ix = p->rPct*(p->nUsed-1);
+    i1 = (unsigned)ix;
+    if( pFunc->bDiscrete ){
+      vx = p->a[i1];
+    }else{
+      i2 = ix==(double)i1 || i1==p->nUsed-1 ? i1 : i1+1;
+      v1 = p->a[i1];
+      v2 = p->a[i2];
+      vx = v1 + (v2-v1)*(ix-i1);
+    }
+    sqlite3_result_double(pCtx, vx);
+  }
+  if( bIsFinal ){
+    sqlite3_free(p->a);
+    memset(p, 0, sizeof(*p));
+  }else{
+    p->bKeepSorted = 1;
+  }
+}
+static void percentFinal(sqlite3_context *pCtx){
+  percentCompute(pCtx, 1);
+}
+static void percentValue(sqlite3_context *pCtx){
+  percentCompute(pCtx, 0);
+}
+
+#if defined(_WIN32) && !defined(SQLITE3_H) && !defined(SQLITE_STATIC_PERCENTILE)
+__declspec(dllexport)
+#endif
+int sqlite3_percentile_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  int rc = SQLITE_OK;
+  unsigned int i;
+#ifdef SQLITE3EXT_H
+  SQLITE_EXTENSION_INIT2(pApi);
+#else
+  (void)pApi;      /* Unused parameter */
+#endif
+  (void)pzErrMsg;  /* Unused parameter */
+  for(i=0; i<sizeof(aPercentFunc)/sizeof(aPercentFunc[0]); i++){
+    rc = sqlite3_create_window_function(db,
+            aPercentFunc[i].zName,
+            aPercentFunc[i].nArg,
+            SQLITE_UTF8|SQLITE_INNOCUOUS|SQLITE_SELFORDER1,
+            (void*)&aPercentFunc[i],
+            percentStep, percentFinal, percentValue, percentInverse, 0);
+    if( rc ) break;
+  }
+  return rc;
+}
diff --git a/ext/misc/prefixes.c b/ext/misc/prefixes.c
new file mode 100644
index 0000000000000000000000000000000000000000..e6517e719587c6d59cbd2b830f7c981f18243961
--- /dev/null
+++ b/ext/misc/prefixes.c
@@ -0,0 +1,321 @@
+/*
+** 2018-04-19
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** This file implements a table-valued function:
+**
+**      prefixes('abcdefg')
+**
+** The function has a single (non-HIDDEN) column named prefix that takes
+** on all prefixes of the string in its argument, including an empty string
+** and the input string itself.  The order of prefixes is from longest
+** to shortest.
+*/
+#if !defined(SQLITE_CORE) || !defined(SQLITE_OMIT_VIRTUALTABLE)
+#if !defined(SQLITEINT_H)
+#include "sqlite3ext.h"
+#endif
+SQLITE_EXTENSION_INIT1
+#include <string.h>
+#include <assert.h>
+
+/* prefixes_vtab is a subclass of sqlite3_vtab which is
+** underlying representation of the virtual table
+*/
+typedef struct prefixes_vtab prefixes_vtab;
+struct prefixes_vtab {
+  sqlite3_vtab base;  /* Base class - must be first */
+  /* No additional fields are necessary */
+};
+
+/* prefixes_cursor is a subclass of sqlite3_vtab_cursor which will
+** serve as the underlying representation of a cursor that scans
+** over rows of the result
+*/
+typedef struct prefixes_cursor prefixes_cursor;
+struct prefixes_cursor {
+  sqlite3_vtab_cursor base;  /* Base class - must be first */
+  sqlite3_int64 iRowid;      /* The rowid */
+  char *zStr;                /* Original string to be prefixed */
+  int nStr;                  /* Length of the string in bytes */
+};
+
+/*
+** The prefixesConnect() method is invoked to create a new
+** template virtual table.
+**
+** Think of this routine as the constructor for prefixes_vtab objects.
+**
+** All this routine needs to do is:
+**
+**    (1) Allocate the prefixes_vtab object and initialize all fields.
+**
+**    (2) Tell SQLite (via the sqlite3_declare_vtab() interface) what the
+**        result set of queries against the virtual table will look like.
+*/
+static int prefixesConnect(
+  sqlite3 *db,
+  void *pAux,
+  int argc, const char *const*argv,
+  sqlite3_vtab **ppVtab,
+  char **pzErr
+){
+  prefixes_vtab *pNew;
+  int rc;
+
+  rc = sqlite3_declare_vtab(db,
+           "CREATE TABLE prefixes(prefix TEXT, original_string TEXT HIDDEN)"
+       );
+  if( rc==SQLITE_OK ){
+    pNew = sqlite3_malloc( sizeof(*pNew) );
+    *ppVtab = (sqlite3_vtab*)pNew;
+    if( pNew==0 ) return SQLITE_NOMEM;
+    memset(pNew, 0, sizeof(*pNew));
+    sqlite3_vtab_config(db, SQLITE_VTAB_INNOCUOUS);
+  }
+  return rc;
+}
+
+/*
+** This method is the destructor for prefixes_vtab objects.
+*/
+static int prefixesDisconnect(sqlite3_vtab *pVtab){
+  prefixes_vtab *p = (prefixes_vtab*)pVtab;
+  sqlite3_free(p);
+  return SQLITE_OK;
+}
+
+/*
+** Constructor for a new prefixes_cursor object.
+*/
+static int prefixesOpen(sqlite3_vtab *p, sqlite3_vtab_cursor **ppCursor){
+  prefixes_cursor *pCur;
+  pCur = sqlite3_malloc( sizeof(*pCur) );
+  if( pCur==0 ) return SQLITE_NOMEM;
+  memset(pCur, 0, sizeof(*pCur));
+  *ppCursor = &pCur->base;
+  return SQLITE_OK;
+}
+
+/*
+** Destructor for a prefixes_cursor.
+*/
+static int prefixesClose(sqlite3_vtab_cursor *cur){
+  prefixes_cursor *pCur = (prefixes_cursor*)cur;
+  sqlite3_free(pCur->zStr);
+  sqlite3_free(pCur);
+  return SQLITE_OK;
+}
+
+
+/*
+** Advance a prefixes_cursor to its next row of output.
+*/
+static int prefixesNext(sqlite3_vtab_cursor *cur){
+  prefixes_cursor *pCur = (prefixes_cursor*)cur;
+  pCur->iRowid++;
+  return SQLITE_OK;
+}
+
+/*
+** Return values of columns for the row at which the prefixes_cursor
+** is currently pointing.
+*/
+static int prefixesColumn(
+  sqlite3_vtab_cursor *cur,   /* The cursor */
+  sqlite3_context *ctx,       /* First argument to sqlite3_result_...() */
+  int i                       /* Which column to return */
+){
+  prefixes_cursor *pCur = (prefixes_cursor*)cur;
+  switch( i ){
+    case 0:
+      sqlite3_result_text(ctx, pCur->zStr, pCur->nStr - (int)pCur->iRowid,
+                          0); 
+      break;
+    default:
+      sqlite3_result_text(ctx, pCur->zStr, pCur->nStr, 0);
+      break;
+  }
+  return SQLITE_OK;
+}
+
+/*
+** Return the rowid for the current row.  In this implementation, the
+** rowid is the same as the output value.
+*/
+static int prefixesRowid(sqlite3_vtab_cursor *cur, sqlite_int64 *pRowid){
+  prefixes_cursor *pCur = (prefixes_cursor*)cur;
+  *pRowid = pCur->iRowid;
+  return SQLITE_OK;
+}
+
+/*
+** Return TRUE if the cursor has been moved off of the last
+** row of output.
+*/
+static int prefixesEof(sqlite3_vtab_cursor *cur){
+  prefixes_cursor *pCur = (prefixes_cursor*)cur;
+  return pCur->iRowid>pCur->nStr;
+}
+
+/*
+** This method is called to "rewind" the prefixes_cursor object back
+** to the first row of output.  This method is always called at least
+** once prior to any call to prefixesColumn() or prefixesRowid() or 
+** prefixesEof().
+*/
+static int prefixesFilter(
+  sqlite3_vtab_cursor *pVtabCursor, 
+  int idxNum, const char *idxStr,
+  int argc, sqlite3_value **argv
+){
+  prefixes_cursor *pCur = (prefixes_cursor *)pVtabCursor;
+  sqlite3_free(pCur->zStr);
+  if( argc>0 ){
+    pCur->zStr = sqlite3_mprintf("%s", sqlite3_value_text(argv[0]));
+    pCur->nStr = pCur->zStr ? (int)strlen(pCur->zStr) : 0;
+  }else{
+    pCur->zStr = 0;
+    pCur->nStr = 0;
+  }
+  pCur->iRowid = 0;
+  return SQLITE_OK;
+}
+
+/*
+** SQLite will invoke this method one or more times while planning a query
+** that uses the virtual table.  This routine needs to create
+** a query plan for each invocation and compute an estimated cost for that
+** plan.
+*/
+static int prefixesBestIndex(
+  sqlite3_vtab *tab,
+  sqlite3_index_info *pIdxInfo
+){
+  /* Search for a usable equality constraint against column 1 
+  ** (original_string) and use it if at all possible */
+  int i;
+  const struct sqlite3_index_constraint *p;
+
+  for(i=0, p=pIdxInfo->aConstraint; i<pIdxInfo->nConstraint; i++, p++){
+    if( p->iColumn!=1 ) continue;
+    if( p->op!=SQLITE_INDEX_CONSTRAINT_EQ ) continue;
+    if( !p->usable ) continue;
+    pIdxInfo->aConstraintUsage[i].argvIndex = 1;
+    pIdxInfo->aConstraintUsage[i].omit = 1;
+    pIdxInfo->estimatedCost = (double)10;
+    pIdxInfo->estimatedRows = 10;
+    return SQLITE_OK;
+  }
+  pIdxInfo->estimatedCost = (double)1000000000;
+  pIdxInfo->estimatedRows = 1000000000;
+  return SQLITE_OK;
+}
+
+/*
+** This following structure defines all the methods for the 
+** virtual table.
+*/
+static sqlite3_module prefixesModule = {
+  /* iVersion    */ 0,
+  /* xCreate     */ 0,
+  /* xConnect    */ prefixesConnect,
+  /* xBestIndex  */ prefixesBestIndex,
+  /* xDisconnect */ prefixesDisconnect,
+  /* xDestroy    */ 0,
+  /* xOpen       */ prefixesOpen,
+  /* xClose      */ prefixesClose,
+  /* xFilter     */ prefixesFilter,
+  /* xNext       */ prefixesNext,
+  /* xEof        */ prefixesEof,
+  /* xColumn     */ prefixesColumn,
+  /* xRowid      */ prefixesRowid,
+  /* xUpdate     */ 0,
+  /* xBegin      */ 0,
+  /* xSync       */ 0,
+  /* xCommit     */ 0,
+  /* xRollback   */ 0,
+  /* xFindMethod */ 0,
+  /* xRename     */ 0,
+  /* xSavepoint  */ 0,
+  /* xRelease    */ 0,
+  /* xRollbackTo */ 0,
+  /* xShadowName */ 0,
+  /* xIntegrity  */ 0
+};
+
+/*
+** This is a copy of the SQLITE_SKIP_UTF8(zIn) macro in sqliteInt.h.
+**
+** Assuming zIn points to the first byte of a UTF-8 character,
+** advance zIn to point to the first byte of the next UTF-8 character.
+*/
+#define PREFIX_SKIP_UTF8(zIn) {                        \
+  if( (*(zIn++))>=0xc0 ){                              \
+    while( (*zIn & 0xc0)==0x80 ){ zIn++; }             \
+  }                                                    \
+}
+
+/*
+** Implementation of function prefix_length(). This function accepts two
+** strings as arguments and returns the length in characters (not bytes), 
+** of the longest prefix shared by the two strings. For example:
+**
+**   prefix_length('abcdxxx', 'abcyy') == 3
+**   prefix_length('abcdxxx', 'bcyyy') == 0
+**   prefix_length('abcdxxx', 'ab')    == 2
+**   prefix_length('ab',      'abcd')  == 2
+**
+** This function assumes the input is well-formed utf-8. If it is not,
+** it is possible for this function to return -1.
+*/
+static void prefixLengthFunc(
+  sqlite3_context *ctx,
+  int nVal,
+  sqlite3_value **apVal
+){
+  int nByte;                      /* Number of bytes to compare */
+  int nRet = 0;                   /* Return value */
+  const unsigned char *zL = sqlite3_value_text(apVal[0]);
+  const unsigned char *zR = sqlite3_value_text(apVal[1]);
+  int nL = sqlite3_value_bytes(apVal[0]);
+  int nR = sqlite3_value_bytes(apVal[1]);
+  int i;
+
+  nByte = (nL > nR ? nL : nR);
+  for(i=0; i<nByte; i++){
+    if( zL[i]!=zR[i] ) break;
+    if( (zL[i] & 0xC0)!=0x80 ) nRet++;
+  }
+
+  if( (zL[i] & 0xC0)==0x80 ) nRet--;
+  sqlite3_result_int(ctx, nRet);
+}
+
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_prefixes_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  int rc = SQLITE_OK;
+  SQLITE_EXTENSION_INIT2(pApi);
+  rc = sqlite3_create_module(db, "prefixes", &prefixesModule, 0);
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_function(
+        db, "prefix_length", 2, SQLITE_UTF8, 0, prefixLengthFunc, 0, 0
+    );
+  }
+  return rc;
+}
+#endif /* !defined(SQLITE_CORE) || !defined(SQLITE_OMIT_VIRTUALTABLE) */
diff --git a/ext/misc/qpvtab.c b/ext/misc/qpvtab.c
new file mode 100644
index 0000000000000000000000000000000000000000..b7c2a05126b4d18dab1943b182284d26ae131496
--- /dev/null
+++ b/ext/misc/qpvtab.c
@@ -0,0 +1,462 @@
+/*
+** 2022-01-19
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** This file implements a virtual-table that returns information about
+** how the query planner called the xBestIndex method.  This virtual table
+** is intended for testing and debugging only.
+**
+** The schema of the virtual table is this:
+**
+**    CREATE TABLE qpvtab(
+**      vn     TEXT,           -- Name of an sqlite3_index_info field
+**      ix     INTEGER,        -- Array index or value
+**      cn     TEXT,           -- Column name
+**      op     INTEGER,        -- operator
+**      ux     BOOLEAN,        -- "usable" field
+**      rhs    TEXT,           -- sqlite3_vtab_rhs_value()
+**
+**      a, b, c, d, e,         -- Extra columns to attach constraints to
+**
+**      flags    INTEGER HIDDEN  -- control flags
+**    );
+**
+** The virtual table returns a description of the sqlite3_index_info object
+** that was provided to the (successful) xBestIndex method.  There is one
+** row in the result table for each field in the sqlite3_index_info object.
+**
+** The values of the "a" through "e" columns are one of:
+**
+**    1.   TEXT - the same as the column name
+**    2.   INTEGER - 1 for "a", 2 for "b", and so forth
+**
+** Option 1 is the default behavior.  2 is use if there is a usable
+** constraint on "flags" with an integer right-hand side that where the
+** value of the right-hand side has its 0x001 bit set.
+**
+** All constraints on columns "a" through "e" are marked as "omit".
+**
+** If there is a usable constraint on "flags" that has a RHS value that
+** is an integer and that integer has its 0x02 bit set, then the
+** orderByConsumed flag is set.
+**
+** FLAGS SUMMARY:
+**
+**   0x001               Columns 'a' through 'e' have INT values
+**   0x002               orderByConsumed is set
+**   0x004               OFFSET and LIMIT have omit set
+**
+** COMPILE:
+**
+**   gcc -Wall -g -shared -fPIC -I. qpvtab.c -o qqvtab.so
+**
+** EXAMPLE USAGE:
+**
+**   .load ./qpvtab
+**   SELECT rowid, *, flags FROM qpvtab(102)
+**    WHERE a=19
+**      AND b BETWEEN 4.5 and 'hello'
+**      AND c<>x'aabbcc'
+**    ORDER BY d, e DESC;
+*/
+#if !defined(SQLITEINT_H)
+#include "sqlite3ext.h"
+#endif
+SQLITE_EXTENSION_INIT1
+#include <string.h>
+#include <assert.h>
+#include <stdlib.h>
+
+#if !defined(SQLITE_OMIT_VIRTUALTABLE)
+
+/* qpvtab_vtab is a subclass of sqlite3_vtab which is
+** underlying representation of the virtual table
+*/
+typedef struct qpvtab_vtab qpvtab_vtab;
+struct qpvtab_vtab {
+  sqlite3_vtab base;  /* Base class - must be first */
+};
+
+/* qpvtab_cursor is a subclass of sqlite3_vtab_cursor which will
+** serve as the underlying representation of a cursor that scans
+** over rows of the result
+*/
+typedef struct qpvtab_cursor qpvtab_cursor;
+struct qpvtab_cursor {
+  sqlite3_vtab_cursor base;  /* Base class - must be first */
+  sqlite3_int64 iRowid;      /* The rowid */
+  const char *zData;         /* Data to return */
+  int nData;                 /* Number of bytes of data */
+  int flags;                 /* Flags value */
+};
+
+/*
+** Names of columns
+*/
+static const char *azColname[] = {
+  "vn",
+  "ix",
+  "cn",
+  "op",
+  "ux",
+  "rhs",
+  "a", "b", "c", "d", "e",
+  "flags",
+  ""
+};
+
+/*
+** The qpvtabConnect() method is invoked to create a new
+** qpvtab virtual table.
+*/
+static int qpvtabConnect(
+  sqlite3 *db,
+  void *pAux,
+  int argc, const char *const*argv,
+  sqlite3_vtab **ppVtab,
+  char **pzErr
+){
+  qpvtab_vtab *pNew;
+  int rc;
+
+  rc = sqlite3_declare_vtab(db,
+         "CREATE TABLE x("
+         " vn TEXT,"
+         " ix INT,"
+         " cn TEXT,"
+         " op INT,"
+         " ux BOOLEAN,"
+         " rhs TEXT,"
+         " a, b, c, d, e,"
+         " flags INT HIDDEN)"
+       );
+#define QPVTAB_VN      0
+#define QPVTAB_IX      1
+#define QPVTAB_CN      2
+#define QPVTAB_OP      3
+#define QPVTAB_UX      4
+#define QPVTAB_RHS     5
+#define QPVTAB_A       6
+#define QPVTAB_B       7
+#define QPVTAB_C       8
+#define QPVTAB_D       9
+#define QPVTAB_E      10
+#define QPVTAB_FLAGS  11
+#define QPVTAB_NONE   12
+  if( rc==SQLITE_OK ){
+    pNew = sqlite3_malloc( sizeof(*pNew) );
+    *ppVtab = (sqlite3_vtab*)pNew;
+    if( pNew==0 ) return SQLITE_NOMEM;
+    memset(pNew, 0, sizeof(*pNew));
+  }
+  return rc;
+}
+
+/*
+** This method is the destructor for qpvtab_vtab objects.
+*/
+static int qpvtabDisconnect(sqlite3_vtab *pVtab){
+  qpvtab_vtab *p = (qpvtab_vtab*)pVtab;
+  sqlite3_free(p);
+  return SQLITE_OK;
+}
+
+/*
+** Constructor for a new qpvtab_cursor object.
+*/
+static int qpvtabOpen(sqlite3_vtab *p, sqlite3_vtab_cursor **ppCursor){
+  qpvtab_cursor *pCur;
+  pCur = sqlite3_malloc( sizeof(*pCur) );
+  if( pCur==0 ) return SQLITE_NOMEM;
+  memset(pCur, 0, sizeof(*pCur));
+  *ppCursor = &pCur->base;
+  return SQLITE_OK;
+}
+
+/*
+** Destructor for a qpvtab_cursor.
+*/
+static int qpvtabClose(sqlite3_vtab_cursor *cur){
+  qpvtab_cursor *pCur = (qpvtab_cursor*)cur;
+  sqlite3_free(pCur);
+  return SQLITE_OK;
+}
+
+
+/*
+** Advance a qpvtab_cursor to its next row of output.
+*/
+static int qpvtabNext(sqlite3_vtab_cursor *cur){
+  qpvtab_cursor *pCur = (qpvtab_cursor*)cur;
+  if( pCur->iRowid<pCur->nData ){
+    const char *z = &pCur->zData[pCur->iRowid];
+    const char *zEnd = strchr(z, '\n');
+    if( zEnd ) zEnd++;
+    pCur->iRowid = (int)(zEnd - pCur->zData);
+  }
+  return SQLITE_OK;
+}
+
+/*
+** Return values of columns for the row at which the qpvtab_cursor
+** is currently pointing.
+*/
+static int qpvtabColumn(
+  sqlite3_vtab_cursor *cur,   /* The cursor */
+  sqlite3_context *ctx,       /* First argument to sqlite3_result_...() */
+  int i                       /* Which column to return */
+){
+  qpvtab_cursor *pCur = (qpvtab_cursor*)cur;
+  if( i>=QPVTAB_VN && i<=QPVTAB_RHS && pCur->iRowid<pCur->nData ){
+    const char *z = &pCur->zData[pCur->iRowid];
+    const char *zEnd;
+    int j;
+    j = QPVTAB_VN;
+    while(1){
+      zEnd = strchr(z, j==QPVTAB_RHS ? '\n' : ',');
+      if( j==i || zEnd==0 ) break;
+      z = zEnd+1;
+      j++;
+    }
+    if( zEnd==z ){
+      sqlite3_result_null(ctx);
+    }else if( i==QPVTAB_IX || i==QPVTAB_OP || i==QPVTAB_UX ){
+      sqlite3_result_int(ctx, atoi(z));
+    }else{
+      sqlite3_result_text64(ctx, z, zEnd-z, SQLITE_TRANSIENT, SQLITE_UTF8);
+    }
+  }else if( i>=QPVTAB_A && i<=QPVTAB_E ){
+    if( pCur->flags & 0x001 ){
+      sqlite3_result_int(ctx, i-QPVTAB_A+1);
+    }else{
+      char x = 'a'+i-QPVTAB_A;
+      sqlite3_result_text64(ctx, &x, 1, SQLITE_TRANSIENT, SQLITE_UTF8);
+    }
+  }else if( i==QPVTAB_FLAGS ){
+    sqlite3_result_int(ctx, pCur->flags);
+  }
+  return SQLITE_OK;
+}
+
+/*
+** Return the rowid for the current row.  In this implementation, the
+** rowid is the same as the output value.
+*/
+static int qpvtabRowid(sqlite3_vtab_cursor *cur, sqlite_int64 *pRowid){
+  qpvtab_cursor *pCur = (qpvtab_cursor*)cur;
+  *pRowid = pCur->iRowid;
+  return SQLITE_OK;
+}
+
+/*
+** Return TRUE if the cursor has been moved off of the last
+** row of output.
+*/
+static int qpvtabEof(sqlite3_vtab_cursor *cur){
+  qpvtab_cursor *pCur = (qpvtab_cursor*)cur;
+  return pCur->iRowid>=pCur->nData;
+}
+
+/*
+** This method is called to "rewind" the qpvtab_cursor object back
+** to the first row of output.  This method is always called at least
+** once prior to any call to qpvtabColumn() or qpvtabRowid() or 
+** qpvtabEof().
+*/
+static int qpvtabFilter(
+  sqlite3_vtab_cursor *pVtabCursor, 
+  int idxNum, const char *idxStr,
+  int argc, sqlite3_value **argv
+){
+  qpvtab_cursor *pCur = (qpvtab_cursor *)pVtabCursor;
+  pCur->iRowid = 0;
+  pCur->zData = idxStr;
+  pCur->nData = (int)strlen(idxStr);
+  pCur->flags = idxNum;
+  return SQLITE_OK;
+}
+
+/*
+** Append the text of a value to pStr
+*/
+static void qpvtabStrAppendValue(
+  sqlite3_str *pStr,
+  sqlite3_value *pVal
+){
+  switch( sqlite3_value_type(pVal) ){
+    case SQLITE_NULL:
+      sqlite3_str_appendf(pStr, "NULL");
+      break;
+    case SQLITE_INTEGER:
+      sqlite3_str_appendf(pStr, "%lld", sqlite3_value_int64(pVal));
+      break;
+    case SQLITE_FLOAT:
+      sqlite3_str_appendf(pStr, "%!f", sqlite3_value_double(pVal));
+      break;
+    case SQLITE_TEXT: {
+      int i;
+      const char *a = (const char*)sqlite3_value_text(pVal);
+      int n = sqlite3_value_bytes(pVal);
+      sqlite3_str_append(pStr, "'", 1);
+      for(i=0; i<n; i++){
+        char c = a[i];
+        if( c=='\n' ) c = ' ';
+        sqlite3_str_append(pStr, &c, 1);
+        if( c=='\'' ) sqlite3_str_append(pStr, &c, 1);
+      }
+      sqlite3_str_append(pStr, "'", 1);
+      break;
+    }
+    case SQLITE_BLOB: {
+      int i;
+      const unsigned char *a = sqlite3_value_blob(pVal);
+      int n = sqlite3_value_bytes(pVal);
+      sqlite3_str_append(pStr, "x'", 2);
+      for(i=0; i<n; i++){
+        sqlite3_str_appendf(pStr, "%02x", a[i]);
+      }
+      sqlite3_str_append(pStr, "'", 1);
+      break;
+    }
+  }
+}
+
+/*
+** SQLite will invoke this method one or more times while planning a query
+** that uses the virtual table.  This routine needs to create
+** a query plan for each invocation and compute an estimated cost for that
+** plan.
+*/
+static int qpvtabBestIndex(
+  sqlite3_vtab *tab,
+  sqlite3_index_info *pIdxInfo
+){
+  sqlite3_str *pStr = sqlite3_str_new(0);
+  int i, k = 0;
+  int rc;
+  sqlite3_str_appendf(pStr, "nConstraint,%d,,,,\n", pIdxInfo->nConstraint);
+  for(i=0; i<pIdxInfo->nConstraint; i++){
+    sqlite3_value *pVal;
+    int iCol = pIdxInfo->aConstraint[i].iColumn;
+    int op = pIdxInfo->aConstraint[i].op;
+    if( iCol==QPVTAB_FLAGS &&  pIdxInfo->aConstraint[i].usable ){
+      pVal = 0;
+      rc = sqlite3_vtab_rhs_value(pIdxInfo, i, &pVal);
+      assert( rc==SQLITE_OK || pVal==0 );
+      if( pVal ){
+        pIdxInfo->idxNum = sqlite3_value_int(pVal);
+        if( pIdxInfo->idxNum & 0x002 ) pIdxInfo->orderByConsumed = 1;
+      }
+    }
+    if( op==SQLITE_INDEX_CONSTRAINT_LIMIT
+     || op==SQLITE_INDEX_CONSTRAINT_OFFSET
+    ){
+      iCol = QPVTAB_NONE;
+    }
+    sqlite3_str_appendf(pStr,"aConstraint,%d,%s,%d,%d,",
+       i,
+       azColname[iCol],
+       op,
+       pIdxInfo->aConstraint[i].usable);
+    pVal = 0;
+    rc = sqlite3_vtab_rhs_value(pIdxInfo, i, &pVal);
+    assert( rc==SQLITE_OK || pVal==0 );
+    if( pVal ){
+      qpvtabStrAppendValue(pStr, pVal);
+    }
+    sqlite3_str_append(pStr, "\n", 1);
+  }
+  for(i=0; i<pIdxInfo->nConstraint; i++){
+    int iCol = pIdxInfo->aConstraint[i].iColumn;
+    int op = pIdxInfo->aConstraint[i].op;
+    if( op==SQLITE_INDEX_CONSTRAINT_LIMIT
+     || op==SQLITE_INDEX_CONSTRAINT_OFFSET
+    ){
+      iCol = QPVTAB_NONE;
+    }
+    if( iCol>=QPVTAB_A && pIdxInfo->aConstraint[i].usable ){
+      pIdxInfo->aConstraintUsage[i].argvIndex = ++k;
+      if( iCol<=QPVTAB_FLAGS || (pIdxInfo->idxNum & 0x004)!=0 ){
+        pIdxInfo->aConstraintUsage[i].omit = 1;
+      }
+    }
+  }
+  sqlite3_str_appendf(pStr, "nOrderBy,%d,,,,\n", pIdxInfo->nOrderBy);
+  for(i=0; i<pIdxInfo->nOrderBy; i++){
+    int iCol = pIdxInfo->aOrderBy[i].iColumn;
+    sqlite3_str_appendf(pStr, "aOrderBy,%d,%s,%d,,\n",i,
+      iCol>=0 ? azColname[iCol] : "rowid",
+      pIdxInfo->aOrderBy[i].desc
+    );
+  }
+  sqlite3_str_appendf(pStr, "sqlite3_vtab_distinct,%d,,,,\n", 
+                      sqlite3_vtab_distinct(pIdxInfo));
+  sqlite3_str_appendf(pStr, "idxFlags,%d,,,,\n", pIdxInfo->idxFlags);
+  sqlite3_str_appendf(pStr, "colUsed,%d,,,,\n", (int)pIdxInfo->colUsed);
+  pIdxInfo->estimatedCost = (double)10;
+  pIdxInfo->estimatedRows = 10;
+  sqlite3_str_appendf(pStr, "idxNum,%d,,,,\n", pIdxInfo->idxNum);
+  sqlite3_str_appendf(pStr, "orderByConsumed,%d,,,,\n",
+                      pIdxInfo->orderByConsumed);
+  pIdxInfo->idxStr = sqlite3_str_finish(pStr);
+  pIdxInfo->needToFreeIdxStr = 1;
+  return SQLITE_OK;
+}
+
+/*
+** This following structure defines all the methods for the 
+** virtual table.
+*/
+static sqlite3_module qpvtabModule = {
+  /* iVersion    */ 0,
+  /* xCreate     */ 0,
+  /* xConnect    */ qpvtabConnect,
+  /* xBestIndex  */ qpvtabBestIndex,
+  /* xDisconnect */ qpvtabDisconnect,
+  /* xDestroy    */ 0,
+  /* xOpen       */ qpvtabOpen,
+  /* xClose      */ qpvtabClose,
+  /* xFilter     */ qpvtabFilter,
+  /* xNext       */ qpvtabNext,
+  /* xEof        */ qpvtabEof,
+  /* xColumn     */ qpvtabColumn,
+  /* xRowid      */ qpvtabRowid,
+  /* xUpdate     */ 0,
+  /* xBegin      */ 0,
+  /* xSync       */ 0,
+  /* xCommit     */ 0,
+  /* xRollback   */ 0,
+  /* xFindMethod */ 0,
+  /* xRename     */ 0,
+  /* xSavepoint  */ 0,
+  /* xRelease    */ 0,
+  /* xRollbackTo */ 0,
+  /* xShadowName */ 0,
+  /* xIntegrity  */ 0
+};
+#endif /* SQLITE_OMIT_VIRTUALTABLE */
+
+
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_qpvtab_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  int rc = SQLITE_OK;
+  SQLITE_EXTENSION_INIT2(pApi);
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+  rc = sqlite3_create_module(db, "qpvtab", &qpvtabModule, 0);
+#endif
+  return rc;
+}
diff --git a/ext/misc/randomjson.c b/ext/misc/randomjson.c
new file mode 100644
index 0000000000000000000000000000000000000000..cacc4feb68f84e3a7f225091a37a6e90e9f23c16
--- /dev/null
+++ b/ext/misc/randomjson.c
@@ -0,0 +1,240 @@
+/*
+** 2023-04-28
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This SQLite extension implements a the random_json(SEED) and
+** random_json5(SEED) functions.  Given a numeric SEED value, these
+** routines generate pseudo-random JSON or JSON5, respectively.  The
+** same value is always generated for the same seed.
+**
+** These SQL functions are intended for testing.  They do not have any
+** practical real-world use, that we know of.
+**
+** COMPILE:
+**
+**     gcc --shared -fPIC -o randomjson.so -I. ext/misc/randomjson.c
+**
+** USING FROM THE CLI:
+**
+**     .load ./randomjson
+**     SELECT random_json(1);
+**     SELECT random_json5(1);
+*/
+#ifdef SQLITE_STATIC_RANDOMJSON
+#  include "sqlite3.h"
+#else
+#  include "sqlite3ext.h"
+   SQLITE_EXTENSION_INIT1
+#endif
+#include <assert.h>
+#include <string.h>
+#include <stdlib.h>
+
+/* Pseudo-random number generator */
+typedef struct Prng {
+  unsigned int x, y;
+} Prng;
+
+/* Reseed the PRNG */
+static void prngSeed(Prng *p, unsigned int iSeed){
+  p->x = iSeed | 1;
+  p->y = iSeed;
+}
+
+/* Extract a random number */
+static unsigned int prngInt(Prng *p){
+  p->x = (p->x>>1) ^ ((1+~(p->x&1)) & 0xd0000001);
+  p->y = p->y*1103515245 + 12345;
+  return p->x ^ p->y;
+}
+
+static char *azJsonAtoms[] = {
+  /* JSON                    JSON-5 */
+  "0",                       "0",
+  "1",                       "1",
+  "-1",                      "-1",
+  "2",                       "+2",
+  "3DDDD",                   "3DDDD",
+  "2.5DD",                   "2.5DD",
+  "0.75",                    ".75",
+  "-4.0e2",                  "-4.e2",
+  "5.0e-3",                  "+5e-3",
+  "6.DDe+0DD",                "6.DDe+0DD",
+  "0",                       "0x0",
+  "512",                     "0x200",
+  "256",                     "+0x100",
+  "-2748",                   "-0xabc",
+  "true",                    "true",
+  "false",                   "false",
+  "null",                    "null",
+  "9.0e999",                 "Infinity",
+  "-9.0e999",                "-Infinity",
+  "9.0e999",                 "+Infinity",
+  "null",                    "NaN",
+  "-0.0005DD",              "-0.0005DD",
+  "4.35e-3",                 "+4.35e-3",
+  "\"gem\\\"hay\"",          "\"gem\\\"hay\"",
+  "\"icy'joy\"",             "'icy\\'joy\'",
+  "\"keylog\"",              "\"key\\\nlog\"",
+  "\"mix\\\\\\tnet\"",       "\"mix\\\\\\tnet\"",
+  "\"oat\\r\\n\"",           "\"oat\\r\\n\"",
+  "\"\\fpan\\b\"",           "\"\\fpan\\b\"",
+  "{}",                      "{}",
+  "[]",                      "[]",
+  "[]",                      "[/*empty*/]",
+  "{}",                      "{//empty\n}",
+  "\"ask\"",                 "\"ask\"",
+  "\"bag\"",                 "\"bag\"",
+  "\"can\"",                 "\"can\"",
+  "\"day\"",                 "\"day\"",
+  "\"end\"",                 "'end'",
+  "\"fly\"",                 "\"fly\"",
+  "\"\\u00XX\\u00XX\"",      "\"\\xXX\\xXX\"",
+  "\"y\\uXXXXz\"",           "\"y\\uXXXXz\"",
+  "\"\"",                    "\"\"",
+};
+static char *azJsonTemplate[] = {
+  /* JSON                                      JSON-5 */
+  "{\"a\":%,\"b\":%,\"cDD\":%}",               "{a:%,b:%,cDD:%}",
+  "{\"a\":%,\"b\":%,\"c\":%,\"d\":%,\"e\":%}", "{a:%,b:%,c:%,d:%,e:%}",
+  "{\"a\":%,\"b\":%,\"c\":%,\"d\":%,\"\":%}",  "{a:%,b:%,c:%,d:%,'':%}",
+  "{\"d\":%}",                                 "{d:%}",
+  "{\"eeee\":%, \"ffff\":%}",                  "{eeee:% /*and*/, ffff:%}",
+  "{\"$g\":%,\"_h_\":%,\"a b c d\":%}",        "{$g:%,_h_:%,\"a b c d\":%}",
+  "{\"x\":%,\n  \"y\":%}",                     "{\"x\":%,\n  \"y\":%}",
+  "{\"\\u00XX\":%,\"\\uXXXX\":%}",             "{\"\\xXX\":%,\"\\uXXXX\":%}",
+  "{\"Z\":%}",                                 "{Z:%,}",
+  "[%]",                                       "[%,]",
+  "[%,%]",                                     "[%,%]",
+  "[%,%,%]",                                   "[%,%,%,]",
+  "[%,%,%,%]",                                 "[%,%,%,%]",
+  "[%,%,%,%,%]",                               "[%,%,%,%,%]",
+};
+
+#define count(X)  (sizeof(X)/sizeof(X[0]))
+
+#define STRSZ 10000
+
+static void jsonExpand(
+  const char *zSrc,
+  char *zDest,
+  Prng *p,
+  int eType,            /* 0 for JSON, 1 for JSON5 */
+  unsigned int r        /* Growth probability 0..1000.  0 means no growth */
+){
+  unsigned int i, j, k;
+  char *z;
+  char *zX;
+  size_t n;
+  char zBuf[200];
+
+  j = 0;
+  if( zSrc==0 ) zSrc = "%";
+  if( strlen(zSrc)>=STRSZ/10 ) r = 0;
+  for(i=0; zSrc[i]; i++){
+    if( zSrc[i]!='%' ){
+      if( j<STRSZ ) zDest[j++] = zSrc[i];
+      continue;
+    }
+    if( r==0 || (r<1000 && (prngInt(p)%1000)<=r) ){
+      /* Fill in without values without any new % */
+      k = prngInt(p)%(count(azJsonAtoms)/2);
+      k = k*2 + eType;
+      z = azJsonAtoms[k];
+    }else{
+      /* Add new % terms */
+      k = prngInt(p)%(count(azJsonTemplate)/2);
+      k = k*2 + eType;
+      z = azJsonTemplate[k];
+    }
+    n = strlen(z);
+    if( (zX = strstr(z,"XX"))!=0 ){
+      unsigned int y = prngInt(p);
+      if( (y&0xff)==((y>>8)&0xff) ) y += 0x100;
+      while( (y&0xff)==((y>>16)&0xff) || ((y>>8)&0xff)==((y>>16)&0xff) ){
+        y += 0x10000;
+      }
+      memcpy(zBuf, z, n+1);
+      z = zBuf;
+      zX = strstr(z,"XX");
+      while( zX!=0 ){
+        zX[0] = "0123456789abcdef"[y%16];  y /= 16;
+        zX[1] = "0123456789abcdef"[y%16];  y /= 16;
+        zX = strstr(zX, "XX");
+      }
+    }else if( (zX = strstr(z,"DD"))!=0 ){
+      unsigned int y = prngInt(p);
+      memcpy(zBuf, z, n+1);
+      z = zBuf;
+      zX = strstr(z,"DD");
+      while( zX!=0 ){
+        zX[0] = "0123456789"[y%10];  y /= 10;
+        zX[1] = "0123456789"[y%10];  y /= 10;
+        zX = strstr(zX, "DD");
+      }
+    }
+    assert( strstr(z, "XX")==0 );
+    assert( strstr(z, "DD")==0 );
+    if( j+n<STRSZ ){
+      memcpy(&zDest[j], z, n);
+      j += (int)n;
+    }
+  }
+  zDest[STRSZ-1] = 0;
+  if( j<STRSZ ) zDest[j] = 0;
+}
+
+static void randJsonFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  unsigned int iSeed;
+  int eType = *(int*)sqlite3_user_data(context);
+  Prng prng;
+  char z1[STRSZ+1], z2[STRSZ+1];
+
+  iSeed = (unsigned int)sqlite3_value_int(argv[0]);
+  prngSeed(&prng, iSeed);
+  jsonExpand(0, z2, &prng, eType, 1000);
+  jsonExpand(z2, z1, &prng, eType, 1000);
+  jsonExpand(z1, z2, &prng, eType, 100);
+  jsonExpand(z2, z1, &prng, eType, 0);
+  sqlite3_result_text(context, z1, -1, SQLITE_TRANSIENT);
+}
+
+#ifdef _WIN32
+  __declspec(dllexport)
+#endif
+int sqlite3_randomjson_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  static int cOne = 1;
+  static int cZero = 0;
+  int rc = SQLITE_OK;
+#ifdef SQLITE_STATIC_RANDOMJSON
+  (void)pApi;      /* Unused parameter */
+#else
+  SQLITE_EXTENSION_INIT2(pApi);
+#endif
+  (void)pzErrMsg;  /* Unused parameter */
+  rc = sqlite3_create_function(db, "random_json", 1,
+                   SQLITE_UTF8|SQLITE_INNOCUOUS|SQLITE_DETERMINISTIC,
+                   &cZero, randJsonFunc, 0, 0);
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_function(db, "random_json5", 1,
+                   SQLITE_UTF8|SQLITE_INNOCUOUS|SQLITE_DETERMINISTIC,
+                   &cOne, randJsonFunc, 0, 0);
+  }
+  return rc;
+}
diff --git a/ext/misc/regexp.c b/ext/misc/regexp.c
new file mode 100644
index 0000000000000000000000000000000000000000..a50008ca355a02b49436d6f48405dba1430cd681
--- /dev/null
+++ b/ext/misc/regexp.c
@@ -0,0 +1,881 @@
+/*
+** 2012-11-13
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** The code in this file implements a compact but reasonably
+** efficient regular-expression matcher for posix extended regular
+** expressions against UTF8 text.
+**
+** This file is an SQLite extension.  It registers a single function
+** named "regexp(A,B)" where A is the regular expression and B is the
+** string to be matched.  By registering this function, SQLite will also
+** then implement the "B regexp A" operator.  Note that with the function
+** the regular expression comes first, but with the operator it comes
+** second.
+**
+**  The following regular expression syntax is supported:
+**
+**     X*      zero or more occurrences of X
+**     X+      one or more occurrences of X
+**     X?      zero or one occurrences of X
+**     X{p,q}  between p and q occurrences of X
+**     (X)     match X
+**     X|Y     X or Y
+**     ^X      X occurring at the beginning of the string
+**     X$      X occurring at the end of the string
+**     .       Match any single character
+**     \c      Character c where c is one of \{}()[]|*+?.
+**     \c      C-language escapes for c in afnrtv.  ex: \t or \n
+**     \uXXXX  Where XXXX is exactly 4 hex digits, unicode value XXXX
+**     \xXX    Where XX is exactly 2 hex digits, unicode value XX
+**     [abc]   Any single character from the set abc
+**     [^abc]  Any single character not in the set abc
+**     [a-z]   Any single character in the range a-z
+**     [^a-z]  Any single character not in the range a-z
+**     \b      Word boundary
+**     \w      Word character.  [A-Za-z0-9_]
+**     \W      Non-word character
+**     \d      Digit
+**     \D      Non-digit
+**     \s      Whitespace character
+**     \S      Non-whitespace character
+**
+** A nondeterministic finite automaton (NFA) is used for matching, so the
+** performance is bounded by O(N*M) where N is the size of the regular
+** expression and M is the size of the input string.  The matcher never
+** exhibits exponential behavior.  Note that the X{p,q} operator expands
+** to p copies of X following by q-p copies of X? and that the size of the
+** regular expression in the O(N*M) performance bound is computed after
+** this expansion.
+*/
+#include <string.h>
+#include <stdlib.h>
+#include "sqlite3ext.h"
+SQLITE_EXTENSION_INIT1
+
+/*
+** The following #defines change the names of some functions implemented in
+** this file to prevent name collisions with C-library functions of the
+** same name.
+*/
+#define re_match   sqlite3re_match
+#define re_compile sqlite3re_compile
+#define re_free    sqlite3re_free
+
+/* The end-of-input character */
+#define RE_EOF            0    /* End of input */
+#define RE_START  0xfffffff    /* Start of input - larger than an UTF-8 */
+
+/* The NFA is implemented as sequence of opcodes taken from the following
+** set.  Each opcode has a single integer argument.
+*/
+#define RE_OP_MATCH       1    /* Match the one character in the argument */
+#define RE_OP_ANY         2    /* Match any one character.  (Implements ".") */
+#define RE_OP_ANYSTAR     3    /* Special optimized version of .* */
+#define RE_OP_FORK        4    /* Continue to both next and opcode at iArg */
+#define RE_OP_GOTO        5    /* Jump to opcode at iArg */
+#define RE_OP_ACCEPT      6    /* Halt and indicate a successful match */
+#define RE_OP_CC_INC      7    /* Beginning of a [...] character class */
+#define RE_OP_CC_EXC      8    /* Beginning of a [^...] character class */
+#define RE_OP_CC_VALUE    9    /* Single value in a character class */
+#define RE_OP_CC_RANGE   10    /* Range of values in a character class */
+#define RE_OP_WORD       11    /* Perl word character [A-Za-z0-9_] */
+#define RE_OP_NOTWORD    12    /* Not a perl word character */
+#define RE_OP_DIGIT      13    /* digit:  [0-9] */
+#define RE_OP_NOTDIGIT   14    /* Not a digit */
+#define RE_OP_SPACE      15    /* space:  [ \t\n\r\v\f] */
+#define RE_OP_NOTSPACE   16    /* Not a digit */
+#define RE_OP_BOUNDARY   17    /* Boundary between word and non-word */
+#define RE_OP_ATSTART    18    /* Currently at the start of the string */
+
+#if defined(SQLITE_DEBUG)
+/* Opcode names used for symbolic debugging */
+static const char *ReOpName[] = {
+  "EOF",
+  "MATCH",
+  "ANY",
+  "ANYSTAR",
+  "FORK",
+  "GOTO",
+  "ACCEPT",
+  "CC_INC",
+  "CC_EXC",
+  "CC_VALUE",
+  "CC_RANGE",
+  "WORD",
+  "NOTWORD",
+  "DIGIT",
+  "NOTDIGIT",
+  "SPACE",
+  "NOTSPACE",
+  "BOUNDARY",
+  "ATSTART",
+};
+#endif /* SQLITE_DEBUG */
+
+
+/* Each opcode is a "state" in the NFA */
+typedef unsigned short ReStateNumber;
+
+/* Because this is an NFA and not a DFA, multiple states can be active at
+** once.  An instance of the following object records all active states in
+** the NFA.  The implementation is optimized for the common case where the
+** number of actives states is small.
+*/
+typedef struct ReStateSet {
+  unsigned nState;            /* Number of current states */
+  ReStateNumber *aState;      /* Current states */
+} ReStateSet;
+
+/* An input string read one character at a time.
+*/
+typedef struct ReInput ReInput;
+struct ReInput {
+  const unsigned char *z;  /* All text */
+  int i;                   /* Next byte to read */
+  int mx;                  /* EOF when i>=mx */
+};
+
+/* A compiled NFA (or an NFA that is in the process of being compiled) is
+** an instance of the following object.
+*/
+typedef struct ReCompiled ReCompiled;
+struct ReCompiled {
+  ReInput sIn;                /* Regular expression text */
+  const char *zErr;           /* Error message to return */
+  char *aOp;                  /* Operators for the virtual machine */
+  int *aArg;                  /* Arguments to each operator */
+  unsigned (*xNextChar)(ReInput*);  /* Next character function */
+  unsigned char zInit[12];    /* Initial text to match */
+  int nInit;                  /* Number of bytes in zInit */
+  unsigned nState;            /* Number of entries in aOp[] and aArg[] */
+  unsigned nAlloc;            /* Slots allocated for aOp[] and aArg[] */
+};
+
+/* Add a state to the given state set if it is not already there */
+static void re_add_state(ReStateSet *pSet, int newState){
+  unsigned i;
+  for(i=0; i<pSet->nState; i++) if( pSet->aState[i]==newState ) return;
+  pSet->aState[pSet->nState++] = (ReStateNumber)newState;
+}
+
+/* Extract the next unicode character from *pzIn and return it.  Advance
+** *pzIn to the first byte past the end of the character returned.  To
+** be clear:  this routine converts utf8 to unicode.  This routine is 
+** optimized for the common case where the next character is a single byte.
+*/
+static unsigned re_next_char(ReInput *p){
+  unsigned c;
+  if( p->i>=p->mx ) return 0;
+  c = p->z[p->i++];
+  if( c>=0x80 ){
+    if( (c&0xe0)==0xc0 && p->i<p->mx && (p->z[p->i]&0xc0)==0x80 ){
+      c = (c&0x1f)<<6 | (p->z[p->i++]&0x3f);
+      if( c<0x80 ) c = 0xfffd;
+    }else if( (c&0xf0)==0xe0 && p->i+1<p->mx && (p->z[p->i]&0xc0)==0x80
+           && (p->z[p->i+1]&0xc0)==0x80 ){
+      c = (c&0x0f)<<12 | ((p->z[p->i]&0x3f)<<6) | (p->z[p->i+1]&0x3f);
+      p->i += 2;
+      if( c<=0x7ff || (c>=0xd800 && c<=0xdfff) ) c = 0xfffd;
+    }else if( (c&0xf8)==0xf0 && p->i+2<p->mx && (p->z[p->i]&0xc0)==0x80
+           && (p->z[p->i+1]&0xc0)==0x80 && (p->z[p->i+2]&0xc0)==0x80 ){
+      c = (c&0x07)<<18 | ((p->z[p->i]&0x3f)<<12) | ((p->z[p->i+1]&0x3f)<<6)
+                       | (p->z[p->i+2]&0x3f);
+      p->i += 3;
+      if( c<=0xffff || c>0x10ffff ) c = 0xfffd;
+    }else{
+      c = 0xfffd;
+    }
+  }
+  return c;
+}
+static unsigned re_next_char_nocase(ReInput *p){
+  unsigned c = re_next_char(p);
+  if( c>='A' && c<='Z' ) c += 'a' - 'A';
+  return c;
+}
+
+/* Return true if c is a perl "word" character:  [A-Za-z0-9_] */
+static int re_word_char(int c){
+  return (c>='0' && c<='9') || (c>='a' && c<='z')
+      || (c>='A' && c<='Z') || c=='_';
+}
+
+/* Return true if c is a "digit" character:  [0-9] */
+static int re_digit_char(int c){
+  return (c>='0' && c<='9');
+}
+
+/* Return true if c is a perl "space" character:  [ \t\r\n\v\f] */
+static int re_space_char(int c){
+  return c==' ' || c=='\t' || c=='\n' || c=='\r' || c=='\v' || c=='\f';
+}
+
+/* Run a compiled regular expression on the zero-terminated input
+** string zIn[].  Return true on a match and false if there is no match.
+*/
+static int re_match(ReCompiled *pRe, const unsigned char *zIn, int nIn){
+  ReStateSet aStateSet[2], *pThis, *pNext;
+  ReStateNumber aSpace[100];
+  ReStateNumber *pToFree;
+  unsigned int i = 0;
+  unsigned int iSwap = 0;
+  int c = RE_START;
+  int cPrev = 0;
+  int rc = 0;
+  ReInput in;
+
+  in.z = zIn;
+  in.i = 0;
+  in.mx = nIn>=0 ? nIn : (int)strlen((char const*)zIn);
+
+  /* Look for the initial prefix match, if there is one. */
+  if( pRe->nInit ){
+    unsigned char x = pRe->zInit[0];
+    while( in.i+pRe->nInit<=in.mx 
+     && (zIn[in.i]!=x ||
+         strncmp((const char*)zIn+in.i, (const char*)pRe->zInit, pRe->nInit)!=0)
+    ){
+      in.i++;
+    }
+    if( in.i+pRe->nInit>in.mx ) return 0;
+    c = RE_START-1;
+  }
+
+  if( pRe->nState<=(sizeof(aSpace)/(sizeof(aSpace[0])*2)) ){
+    pToFree = 0;
+    aStateSet[0].aState = aSpace;
+  }else{
+    pToFree = sqlite3_malloc64( sizeof(ReStateNumber)*2*pRe->nState );
+    if( pToFree==0 ) return -1;
+    aStateSet[0].aState = pToFree;
+  }
+  aStateSet[1].aState = &aStateSet[0].aState[pRe->nState];
+  pNext = &aStateSet[1];
+  pNext->nState = 0;
+  re_add_state(pNext, 0);
+  while( c!=RE_EOF && pNext->nState>0 ){
+    cPrev = c;
+    c = pRe->xNextChar(&in);
+    pThis = pNext;
+    pNext = &aStateSet[iSwap];
+    iSwap = 1 - iSwap;
+    pNext->nState = 0;
+    for(i=0; i<pThis->nState; i++){
+      int x = pThis->aState[i];
+      switch( pRe->aOp[x] ){
+        case RE_OP_MATCH: {
+          if( pRe->aArg[x]==c ) re_add_state(pNext, x+1);
+          break;
+        }
+        case RE_OP_ATSTART: {
+          if( cPrev==RE_START ) re_add_state(pThis, x+1);
+          break;
+        }
+        case RE_OP_ANY: {
+          if( c!=0 ) re_add_state(pNext, x+1);
+          break;
+        }
+        case RE_OP_WORD: {
+          if( re_word_char(c) ) re_add_state(pNext, x+1);
+          break;
+        }
+        case RE_OP_NOTWORD: {
+          if( !re_word_char(c) && c!=0 ) re_add_state(pNext, x+1);
+          break;
+        }
+        case RE_OP_DIGIT: {
+          if( re_digit_char(c) ) re_add_state(pNext, x+1);
+          break;
+        }
+        case RE_OP_NOTDIGIT: {
+          if( !re_digit_char(c) && c!=0 ) re_add_state(pNext, x+1);
+          break;
+        }
+        case RE_OP_SPACE: {
+          if( re_space_char(c) ) re_add_state(pNext, x+1);
+          break;
+        }
+        case RE_OP_NOTSPACE: {
+          if( !re_space_char(c) && c!=0 ) re_add_state(pNext, x+1);
+          break;
+        }
+        case RE_OP_BOUNDARY: {
+          if( re_word_char(c)!=re_word_char(cPrev) ) re_add_state(pThis, x+1);
+          break;
+        }
+        case RE_OP_ANYSTAR: {
+          re_add_state(pNext, x);
+          re_add_state(pThis, x+1);
+          break;
+        }
+        case RE_OP_FORK: {
+          re_add_state(pThis, x+pRe->aArg[x]);
+          re_add_state(pThis, x+1);
+          break;
+        }
+        case RE_OP_GOTO: {
+          re_add_state(pThis, x+pRe->aArg[x]);
+          break;
+        }
+        case RE_OP_ACCEPT: {
+          rc = 1;
+          goto re_match_end;
+        }
+        case RE_OP_CC_EXC: {
+          if( c==0 ) break;
+          /* fall-through */ goto re_op_cc_inc;
+        }
+        case RE_OP_CC_INC: re_op_cc_inc: {
+          int j = 1;
+          int n = pRe->aArg[x];
+          int hit = 0;
+          for(j=1; j>0 && j<n; j++){
+            if( pRe->aOp[x+j]==RE_OP_CC_VALUE ){
+              if( pRe->aArg[x+j]==c ){
+                hit = 1;
+                j = -1;
+              }
+            }else{
+              if( pRe->aArg[x+j]<=c && pRe->aArg[x+j+1]>=c ){
+                hit = 1;
+                j = -1;
+              }else{
+                j++;
+              }
+            }
+          }
+          if( pRe->aOp[x]==RE_OP_CC_EXC ) hit = !hit;
+          if( hit ) re_add_state(pNext, x+n);
+          break;
+        }
+      }
+    }
+  }
+  for(i=0; i<pNext->nState; i++){
+    int x = pNext->aState[i];
+    while( pRe->aOp[x]==RE_OP_GOTO ) x += pRe->aArg[x];
+    if( pRe->aOp[x]==RE_OP_ACCEPT ){ rc = 1; break; }
+  }
+re_match_end:
+  sqlite3_free(pToFree);
+  return rc;
+}
+
+/* Resize the opcode and argument arrays for an RE under construction.
+*/
+static int re_resize(ReCompiled *p, int N){
+  char *aOp;
+  int *aArg;
+  aOp = sqlite3_realloc64(p->aOp, N*sizeof(p->aOp[0]));
+  if( aOp==0 ) return 1;
+  p->aOp = aOp;
+  aArg = sqlite3_realloc64(p->aArg, N*sizeof(p->aArg[0]));
+  if( aArg==0 ) return 1;
+  p->aArg = aArg;
+  p->nAlloc = N;
+  return 0;
+}
+
+/* Insert a new opcode and argument into an RE under construction.  The
+** insertion point is just prior to existing opcode iBefore.
+*/
+static int re_insert(ReCompiled *p, int iBefore, int op, int arg){
+  int i;
+  if( p->nAlloc<=p->nState && re_resize(p, p->nAlloc*2) ) return 0;
+  for(i=p->nState; i>iBefore; i--){
+    p->aOp[i] = p->aOp[i-1];
+    p->aArg[i] = p->aArg[i-1];
+  }
+  p->nState++;
+  p->aOp[iBefore] = (char)op;
+  p->aArg[iBefore] = arg;
+  return iBefore;
+}
+
+/* Append a new opcode and argument to the end of the RE under construction.
+*/
+static int re_append(ReCompiled *p, int op, int arg){
+  return re_insert(p, p->nState, op, arg);
+}
+
+/* Make a copy of N opcodes starting at iStart onto the end of the RE
+** under construction.
+*/
+static void re_copy(ReCompiled *p, int iStart, int N){
+  if( p->nState+N>=p->nAlloc && re_resize(p, p->nAlloc*2+N) ) return;
+  memcpy(&p->aOp[p->nState], &p->aOp[iStart], N*sizeof(p->aOp[0]));
+  memcpy(&p->aArg[p->nState], &p->aArg[iStart], N*sizeof(p->aArg[0]));
+  p->nState += N;
+}
+
+/* Return true if c is a hexadecimal digit character:  [0-9a-fA-F]
+** If c is a hex digit, also set *pV = (*pV)*16 + valueof(c).  If
+** c is not a hex digit *pV is unchanged.
+*/
+static int re_hex(int c, int *pV){
+  if( c>='0' && c<='9' ){
+    c -= '0';
+  }else if( c>='a' && c<='f' ){
+    c -= 'a' - 10;
+  }else if( c>='A' && c<='F' ){
+    c -= 'A' - 10;
+  }else{
+    return 0;
+  }
+  *pV = (*pV)*16 + (c & 0xff);
+  return 1;
+}
+
+/* A backslash character has been seen, read the next character and
+** return its interpretation.
+*/
+static unsigned re_esc_char(ReCompiled *p){
+  static const char zEsc[] = "afnrtv\\()*.+?[$^{|}]";
+  static const char zTrans[] = "\a\f\n\r\t\v";
+  int i, v = 0;
+  char c;
+  if( p->sIn.i>=p->sIn.mx ) return 0;
+  c = p->sIn.z[p->sIn.i];
+  if( c=='u' && p->sIn.i+4<p->sIn.mx ){
+    const unsigned char *zIn = p->sIn.z + p->sIn.i;
+    if( re_hex(zIn[1],&v)
+     && re_hex(zIn[2],&v)
+     && re_hex(zIn[3],&v)
+     && re_hex(zIn[4],&v)
+    ){
+      p->sIn.i += 5;
+      return v;
+    }
+  }
+  if( c=='x' && p->sIn.i+2<p->sIn.mx ){
+    const unsigned char *zIn = p->sIn.z + p->sIn.i;
+    if( re_hex(zIn[1],&v)
+     && re_hex(zIn[2],&v)
+    ){
+      p->sIn.i += 3;
+      return v;
+    }
+  }
+  for(i=0; zEsc[i] && zEsc[i]!=c; i++){}
+  if( zEsc[i] ){
+    if( i<6 ) c = zTrans[i];
+    p->sIn.i++;
+  }else{
+    p->zErr = "unknown \\ escape";
+  }
+  return c;
+}
+
+/* Forward declaration */
+static const char *re_subcompile_string(ReCompiled*);
+
+/* Peek at the next byte of input */
+static unsigned char rePeek(ReCompiled *p){
+  return p->sIn.i<p->sIn.mx ? p->sIn.z[p->sIn.i] : 0;
+}
+
+/* Compile RE text into a sequence of opcodes.  Continue up to the
+** first unmatched ")" character, then return.  If an error is found,
+** return a pointer to the error message string.
+*/
+static const char *re_subcompile_re(ReCompiled *p){
+  const char *zErr;
+  int iStart, iEnd, iGoto;
+  iStart = p->nState;
+  zErr = re_subcompile_string(p);
+  if( zErr ) return zErr;
+  while( rePeek(p)=='|' ){
+    iEnd = p->nState;
+    re_insert(p, iStart, RE_OP_FORK, iEnd + 2 - iStart);
+    iGoto = re_append(p, RE_OP_GOTO, 0);
+    p->sIn.i++;
+    zErr = re_subcompile_string(p);
+    if( zErr ) return zErr;
+    p->aArg[iGoto] = p->nState - iGoto;
+  }
+  return 0;
+}
+
+/* Compile an element of regular expression text (anything that can be
+** an operand to the "|" operator).  Return NULL on success or a pointer
+** to the error message if there is a problem.
+*/
+static const char *re_subcompile_string(ReCompiled *p){
+  int iPrev = -1;
+  int iStart;
+  unsigned c;
+  const char *zErr;
+  while( (c = p->xNextChar(&p->sIn))!=0 ){
+    iStart = p->nState;
+    switch( c ){
+      case '|':
+      case ')': {
+        p->sIn.i--;
+        return 0;
+      }
+      case '(': {
+        zErr = re_subcompile_re(p);
+        if( zErr ) return zErr;
+        if( rePeek(p)!=')' ) return "unmatched '('";
+        p->sIn.i++;
+        break;
+      }
+      case '.': {
+        if( rePeek(p)=='*' ){
+          re_append(p, RE_OP_ANYSTAR, 0);
+          p->sIn.i++;
+        }else{
+          re_append(p, RE_OP_ANY, 0);
+        }
+        break;
+      }
+      case '*': {
+        if( iPrev<0 ) return "'*' without operand";
+        re_insert(p, iPrev, RE_OP_GOTO, p->nState - iPrev + 1);
+        re_append(p, RE_OP_FORK, iPrev - p->nState + 1);
+        break;
+      }
+      case '+': {
+        if( iPrev<0 ) return "'+' without operand";
+        re_append(p, RE_OP_FORK, iPrev - p->nState);
+        break;
+      }
+      case '?': {
+        if( iPrev<0 ) return "'?' without operand";
+        re_insert(p, iPrev, RE_OP_FORK, p->nState - iPrev+1);
+        break;
+      }
+      case '$': {
+        re_append(p, RE_OP_MATCH, RE_EOF);
+        break;
+      }
+      case '^': {
+        re_append(p, RE_OP_ATSTART, 0);
+        break;
+      }
+      case '{': {
+        int m = 0, n = 0;
+        int sz, j;
+        if( iPrev<0 ) return "'{m,n}' without operand";
+        while( (c=rePeek(p))>='0' && c<='9' ){ m = m*10 + c - '0'; p->sIn.i++; }
+        n = m;
+        if( c==',' ){
+          p->sIn.i++;
+          n = 0;
+          while( (c=rePeek(p))>='0' && c<='9' ){ n = n*10 + c-'0'; p->sIn.i++; }
+        }
+        if( c!='}' ) return "unmatched '{'";
+        if( n>0 && n<m ) return "n less than m in '{m,n}'";
+        p->sIn.i++;
+        sz = p->nState - iPrev;
+        if( m==0 ){
+          if( n==0 ) return "both m and n are zero in '{m,n}'";
+          re_insert(p, iPrev, RE_OP_FORK, sz+1);
+          iPrev++;
+          n--;
+        }else{
+          for(j=1; j<m; j++) re_copy(p, iPrev, sz);
+        }
+        for(j=m; j<n; j++){
+          re_append(p, RE_OP_FORK, sz+1);
+          re_copy(p, iPrev, sz);
+        }
+        if( n==0 && m>0 ){
+          re_append(p, RE_OP_FORK, -sz);
+        }
+        break;
+      }
+      case '[': {
+        unsigned int iFirst = p->nState;
+        if( rePeek(p)=='^' ){
+          re_append(p, RE_OP_CC_EXC, 0);
+          p->sIn.i++;
+        }else{
+          re_append(p, RE_OP_CC_INC, 0);
+        }
+        while( (c = p->xNextChar(&p->sIn))!=0 ){
+          if( c=='[' && rePeek(p)==':' ){
+            return "POSIX character classes not supported";
+          }
+          if( c=='\\' ) c = re_esc_char(p);
+          if( rePeek(p)=='-' ){
+            re_append(p, RE_OP_CC_RANGE, c);
+            p->sIn.i++;
+            c = p->xNextChar(&p->sIn);
+            if( c=='\\' ) c = re_esc_char(p);
+            re_append(p, RE_OP_CC_RANGE, c);
+          }else{
+            re_append(p, RE_OP_CC_VALUE, c);
+          }
+          if( rePeek(p)==']' ){ p->sIn.i++; break; }
+        }
+        if( c==0 ) return "unclosed '['";
+        if( p->nState>iFirst ) p->aArg[iFirst] = p->nState - iFirst;
+        break;
+      }
+      case '\\': {
+        int specialOp = 0;
+        switch( rePeek(p) ){
+          case 'b': specialOp = RE_OP_BOUNDARY;   break;
+          case 'd': specialOp = RE_OP_DIGIT;      break;
+          case 'D': specialOp = RE_OP_NOTDIGIT;   break;
+          case 's': specialOp = RE_OP_SPACE;      break;
+          case 'S': specialOp = RE_OP_NOTSPACE;   break;
+          case 'w': specialOp = RE_OP_WORD;       break;
+          case 'W': specialOp = RE_OP_NOTWORD;    break;
+        }
+        if( specialOp ){
+          p->sIn.i++;
+          re_append(p, specialOp, 0);
+        }else{
+          c = re_esc_char(p);
+          re_append(p, RE_OP_MATCH, c);
+        }
+        break;
+      }
+      default: {
+        re_append(p, RE_OP_MATCH, c);
+        break;
+      }
+    }
+    iPrev = iStart;
+  }
+  return 0;
+}
+
+/* Free and reclaim all the memory used by a previously compiled
+** regular expression.  Applications should invoke this routine once
+** for every call to re_compile() to avoid memory leaks.
+*/
+static void re_free(ReCompiled *pRe){
+  if( pRe ){
+    sqlite3_free(pRe->aOp);
+    sqlite3_free(pRe->aArg);
+    sqlite3_free(pRe);
+  }
+}
+
+/*
+** Compile a textual regular expression in zIn[] into a compiled regular
+** expression suitable for us by re_match() and return a pointer to the
+** compiled regular expression in *ppRe.  Return NULL on success or an
+** error message if something goes wrong.
+*/
+static const char *re_compile(ReCompiled **ppRe, const char *zIn, int noCase){
+  ReCompiled *pRe;
+  const char *zErr;
+  int i, j;
+
+  *ppRe = 0;
+  pRe = sqlite3_malloc( sizeof(*pRe) );
+  if( pRe==0 ){
+    return "out of memory";
+  }
+  memset(pRe, 0, sizeof(*pRe));
+  pRe->xNextChar = noCase ? re_next_char_nocase : re_next_char;
+  if( re_resize(pRe, 30) ){
+    re_free(pRe);
+    return "out of memory";
+  }
+  if( zIn[0]=='^' ){
+    zIn++;
+  }else{
+    re_append(pRe, RE_OP_ANYSTAR, 0);
+  }
+  pRe->sIn.z = (unsigned char*)zIn;
+  pRe->sIn.i = 0;
+  pRe->sIn.mx = (int)strlen(zIn);
+  zErr = re_subcompile_re(pRe);
+  if( zErr ){
+    re_free(pRe);
+    return zErr;
+  }
+  if( pRe->sIn.i>=pRe->sIn.mx ){
+    re_append(pRe, RE_OP_ACCEPT, 0);
+    *ppRe = pRe;
+  }else{
+    re_free(pRe);
+    return "unrecognized character";
+  }
+
+  /* The following is a performance optimization.  If the regex begins with
+  ** ".*" (if the input regex lacks an initial "^") and afterwards there are
+  ** one or more matching characters, enter those matching characters into
+  ** zInit[].  The re_match() routine can then search ahead in the input 
+  ** string looking for the initial match without having to run the whole
+  ** regex engine over the string.  Do not worry about trying to match
+  ** unicode characters beyond plane 0 - those are very rare and this is
+  ** just an optimization. */
+  if( pRe->aOp[0]==RE_OP_ANYSTAR && !noCase ){
+    for(j=0, i=1; j<(int)sizeof(pRe->zInit)-2 && pRe->aOp[i]==RE_OP_MATCH; i++){
+      unsigned x = pRe->aArg[i];
+      if( x<=0x7f ){
+        pRe->zInit[j++] = (unsigned char)x;
+      }else if( x<=0x7ff ){
+        pRe->zInit[j++] = (unsigned char)(0xc0 | (x>>6));
+        pRe->zInit[j++] = 0x80 | (x&0x3f);
+      }else if( x<=0xffff ){
+        pRe->zInit[j++] = (unsigned char)(0xe0 | (x>>12));
+        pRe->zInit[j++] = 0x80 | ((x>>6)&0x3f);
+        pRe->zInit[j++] = 0x80 | (x&0x3f);
+      }else{
+        break;
+      }
+    }
+    if( j>0 && pRe->zInit[j-1]==0 ) j--;
+    pRe->nInit = j;
+  }
+  return pRe->zErr;
+}
+
+/*
+** Implementation of the regexp() SQL function.  This function implements
+** the build-in REGEXP operator.  The first argument to the function is the
+** pattern and the second argument is the string.  So, the SQL statements:
+**
+**       A REGEXP B
+**
+** is implemented as regexp(B,A).
+*/
+static void re_sql_func(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  ReCompiled *pRe;          /* Compiled regular expression */
+  const char *zPattern;     /* The regular expression */
+  const unsigned char *zStr;/* String being searched */
+  const char *zErr;         /* Compile error message */
+  int setAux = 0;           /* True to invoke sqlite3_set_auxdata() */
+
+  (void)argc;  /* Unused */
+  pRe = sqlite3_get_auxdata(context, 0);
+  if( pRe==0 ){
+    zPattern = (const char*)sqlite3_value_text(argv[0]);
+    if( zPattern==0 ) return;
+    zErr = re_compile(&pRe, zPattern, sqlite3_user_data(context)!=0);
+    if( zErr ){
+      re_free(pRe);
+      sqlite3_result_error(context, zErr, -1);
+      return;
+    }
+    if( pRe==0 ){
+      sqlite3_result_error_nomem(context);
+      return;
+    }
+    setAux = 1;
+  }
+  zStr = (const unsigned char*)sqlite3_value_text(argv[1]);
+  if( zStr!=0 ){
+    sqlite3_result_int(context, re_match(pRe, zStr, -1));
+  }
+  if( setAux ){
+    sqlite3_set_auxdata(context, 0, pRe, (void(*)(void*))re_free);
+  }
+}
+
+#if defined(SQLITE_DEBUG)
+/*
+** This function is used for testing and debugging only.  It is only available
+** if the SQLITE_DEBUG compile-time option is used.
+**
+** Compile a regular expression and then convert the compiled expression into
+** text and return that text.
+*/
+static void re_bytecode_func(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  const char *zPattern;
+  const char *zErr;
+  ReCompiled *pRe;
+  sqlite3_str *pStr;
+  int i;
+  int n;
+  char *z;
+  (void)argc;
+
+  zPattern = (const char*)sqlite3_value_text(argv[0]);
+  if( zPattern==0 ) return;
+  zErr = re_compile(&pRe, zPattern, sqlite3_user_data(context)!=0);
+  if( zErr ){
+    re_free(pRe);
+    sqlite3_result_error(context, zErr, -1);
+    return;
+  }
+  if( pRe==0 ){
+    sqlite3_result_error_nomem(context);
+    return;
+  }
+  pStr = sqlite3_str_new(0);
+  if( pStr==0 ) goto re_bytecode_func_err;
+  if( pRe->nInit>0 ){
+    sqlite3_str_appendf(pStr, "INIT     ");
+    for(i=0; i<pRe->nInit; i++){
+      sqlite3_str_appendf(pStr, "%02x", pRe->zInit[i]);
+    }
+    sqlite3_str_appendf(pStr, "\n");
+  }
+  for(i=0; (unsigned)i<pRe->nState; i++){
+    sqlite3_str_appendf(pStr, "%-8s %4d\n",
+         ReOpName[(unsigned char)pRe->aOp[i]], pRe->aArg[i]);
+  }
+  n = sqlite3_str_length(pStr);
+  z = sqlite3_str_finish(pStr);
+  if( n==0 ){
+    sqlite3_free(z);
+  }else{
+    sqlite3_result_text(context, z, n-1, sqlite3_free);
+  }
+
+re_bytecode_func_err:
+  re_free(pRe);
+}
+
+#endif /* SQLITE_DEBUG */
+
+
+/*
+** Invoke this routine to register the regexp() function with the
+** SQLite database connection.
+*/
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_regexp_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  int rc = SQLITE_OK;
+  SQLITE_EXTENSION_INIT2(pApi);
+  (void)pzErrMsg;  /* Unused */
+  rc = sqlite3_create_function(db, "regexp", 2, 
+                            SQLITE_UTF8|SQLITE_INNOCUOUS|SQLITE_DETERMINISTIC,
+                            0, re_sql_func, 0, 0);
+  if( rc==SQLITE_OK ){
+    /* The regexpi(PATTERN,STRING) function is a case-insensitive version
+    ** of regexp(PATTERN,STRING). */
+    rc = sqlite3_create_function(db, "regexpi", 2,
+                            SQLITE_UTF8|SQLITE_INNOCUOUS|SQLITE_DETERMINISTIC,
+                            (void*)db, re_sql_func, 0, 0);
+#if defined(SQLITE_DEBUG)
+    if( rc==SQLITE_OK ){
+      rc = sqlite3_create_function(db, "regexp_bytecode", 1,
+                            SQLITE_UTF8|SQLITE_INNOCUOUS|SQLITE_DETERMINISTIC,
+                            0, re_bytecode_func, 0, 0);
+    }
+#endif /* SQLITE_DEBUG */
+  }
+  return rc;
+}
diff --git a/ext/misc/remember.c b/ext/misc/remember.c
new file mode 100644
index 0000000000000000000000000000000000000000..18f6edec9d314e8a64c4cfa07be89e67f011b46e
--- /dev/null
+++ b/ext/misc/remember.c
@@ -0,0 +1,72 @@
+/*
+** 2016-08-09
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** This file demonstrates how to create an SQL function that is a pass-through
+** for integer values (it returns a copy of its argument) but also saves the
+** value that is passed through into a C-language variable.  The address of
+** the C-language variable is supplied as the second argument.
+**
+** This allows, for example, a counter to incremented and the original
+** value retrieved, atomically, using a single statement:
+**
+**    UPDATE counterTab SET cnt=remember(cnt,$PTR)+1 WHERE id=$ID
+**
+** Prepare the above statement once.  Then to use it, bind the address
+** of the output variable to $PTR using sqlite3_bind_pointer() with a
+** pointer type of "carray" and bind the id of the counter to $ID and
+** run the prepared statement.
+**
+** This implementation of the remember() function uses a "carray"
+** pointer so that it can share pointers with the carray() extension.
+**
+** One can imagine doing similar things with floating-point values and
+** strings, but this demonstration extension will stick to using just
+** integers.
+*/
+#include "sqlite3ext.h"
+SQLITE_EXTENSION_INIT1
+#include <assert.h>
+
+/*
+**      remember(V,PTR)
+**
+** Return the integer value V.  Also save the value of V in a
+** C-language variable whose address is PTR.
+*/
+static void rememberFunc(
+  sqlite3_context *pCtx,
+  int argc,
+  sqlite3_value **argv
+){
+  sqlite3_int64 v;
+  sqlite3_int64 *ptr;
+  assert( argc==2 );
+  v = sqlite3_value_int64(argv[0]);
+  ptr = sqlite3_value_pointer(argv[1], "carray");
+  if( ptr ) *ptr = v;
+  sqlite3_result_int64(pCtx, v);
+}
+
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_remember_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  int rc = SQLITE_OK;
+  SQLITE_EXTENSION_INIT2(pApi);
+  rc = sqlite3_create_function(db, "remember", 2, SQLITE_UTF8, 0,
+                               rememberFunc, 0, 0);
+  return rc;
+}
diff --git a/ext/misc/rot13.c b/ext/misc/rot13.c
new file mode 100644
index 0000000000000000000000000000000000000000..05b4a188018227ecd3969a97ed1dfe2acac25f88
--- /dev/null
+++ b/ext/misc/rot13.c
@@ -0,0 +1,115 @@
+/*
+** 2013-05-15
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This SQLite extension implements a rot13() function and a rot13
+** collating sequence.
+*/
+#include "sqlite3ext.h"
+SQLITE_EXTENSION_INIT1
+#include <assert.h>
+#include <string.h>
+
+/*
+** Perform rot13 encoding on a single ASCII character.
+*/
+static unsigned char rot13(unsigned char c){
+  if( c>='a' && c<='z' ){
+    c += 13;
+    if( c>'z' ) c -= 26;
+  }else if( c>='A' && c<='Z' ){
+    c += 13;
+    if( c>'Z' ) c -= 26;
+  }
+  return c;
+}
+
+/*
+** Implementation of the rot13() function.
+**
+** Rotate ASCII alphabetic characters by 13 character positions.  
+** Non-ASCII characters are unchanged.  rot13(rot13(X)) should always
+** equal X.
+*/
+static void rot13func(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  const unsigned char *zIn;
+  int nIn;
+  unsigned char *zOut;
+  unsigned char *zToFree = 0;
+  int i;
+  unsigned char zTemp[100];
+  assert( argc==1 );
+  if( sqlite3_value_type(argv[0])==SQLITE_NULL ) return;
+  zIn = (const unsigned char*)sqlite3_value_text(argv[0]);
+  nIn = sqlite3_value_bytes(argv[0]);
+  if( nIn<sizeof(zTemp)-1 ){
+    zOut = zTemp;
+  }else{
+    zOut = zToFree = (unsigned char*)sqlite3_malloc64( nIn+1 );
+    if( zOut==0 ){
+      sqlite3_result_error_nomem(context);
+      return;
+    }
+  }
+  for(i=0; i<nIn; i++) zOut[i] = rot13(zIn[i]);
+  zOut[i] = 0;
+  sqlite3_result_text(context, (char*)zOut, i, SQLITE_TRANSIENT);
+  sqlite3_free(zToFree);
+}
+
+/*
+** Implement the rot13 collating sequence so that if
+**
+**      x=y COLLATE rot13
+**
+** Then 
+**
+**      rot13(x)=rot13(y) COLLATE binary
+*/
+static int rot13CollFunc(
+  void *notUsed,
+  int nKey1, const void *pKey1,
+  int nKey2, const void *pKey2
+){
+  const char *zA = (const char*)pKey1;
+  const char *zB = (const char*)pKey2;
+  int i, x;
+  for(i=0; i<nKey1 && i<nKey2; i++){
+    x = (int)rot13(zA[i]) - (int)rot13(zB[i]);
+    if( x!=0 ) return x;
+  }
+  return nKey1 - nKey2;
+}
+
+
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_rot_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  int rc = SQLITE_OK;
+  SQLITE_EXTENSION_INIT2(pApi);
+  (void)pzErrMsg;  /* Unused parameter */
+  rc = sqlite3_create_function(db, "rot13", 1,
+                   SQLITE_UTF8|SQLITE_INNOCUOUS|SQLITE_DETERMINISTIC,
+                   0, rot13func, 0, 0);
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_collation(db, "rot13", SQLITE_UTF8, 0, rot13CollFunc);
+  }
+  return rc;
+}
diff --git a/ext/misc/scrub.c b/ext/misc/scrub.c
new file mode 100644
index 0000000000000000000000000000000000000000..9fbf2aed4aa56899c593730892fcfc7e523d2c26
--- /dev/null
+++ b/ext/misc/scrub.c
@@ -0,0 +1,610 @@
+/*
+** 2016-05-05
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This file implements a utility function (and a utility program) that
+** makes a copy of an SQLite database while simultaneously zeroing out all
+** deleted content.
+**
+** Normally (when PRAGMA secure_delete=OFF, which is the default) when SQLite
+** deletes content, it does not overwrite the deleted content but rather marks
+** the region of the file that held that content as being reusable.  This can
+** cause deleted content to recoverable from the database file.  This stale
+** content is removed by the VACUUM command, but VACUUM can be expensive for
+** large databases.  When in PRAGMA secure_delete=ON mode, the deleted content
+** is zeroed, but secure_delete=ON has overhead as well.
+**
+** This utility attempts to make a copy of a complete SQLite database where
+** all of the deleted content is zeroed out in the copy, and it attempts to
+** do so while being faster than running VACUUM.
+**
+** Usage:
+**
+**   int sqlite3_scrub_backup(
+**       const char *zSourceFile,   // Source database filename
+**       const char *zDestFile,     // Destination database filename
+**       char **pzErrMsg            // Write error message here
+**   );
+**
+** Simply call the API above specifying the filename of the source database
+** and the name of the backup copy.  The source database must already exist
+** and can be in active use. (A read lock is held during the backup.)  The
+** destination file should not previously exist.  If the pzErrMsg parameter
+** is non-NULL and if an error occurs, then an error message might be written
+** into memory obtained from sqlite3_malloc() and *pzErrMsg made to point to
+** that error message.  But if the error is an OOM, the error might not be
+** reported.  The routine always returns non-zero if there is an error.
+**
+** If compiled with -DSCRUB_STANDALONE then a main() procedure is added and
+** this file becomes a standalone program that can be run as follows:
+**
+**      ./sqlite3scrub SOURCE DEST
+*/
+#include "sqlite3.h"
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+
+typedef struct ScrubState ScrubState;
+typedef unsigned char u8;
+typedef unsigned short u16;
+typedef unsigned int u32;
+
+
+/* State information for a scrub-and-backup operation */
+struct ScrubState {
+  const char *zSrcFile;    /* Name of the source file */
+  const char *zDestFile;   /* Name of the destination file */
+  int rcErr;               /* Error code */
+  char *zErr;              /* Error message text */
+  sqlite3 *dbSrc;          /* Source database connection */
+  sqlite3_file *pSrc;      /* Source file handle */
+  sqlite3 *dbDest;         /* Destination database connection */
+  sqlite3_file *pDest;     /* Destination file handle */
+  u32 szPage;              /* Page size */
+  u32 szUsable;            /* Usable bytes on each page */
+  u32 nPage;               /* Number of pages */
+  u32 iLastPage;           /* Page number of last page written so far*/
+  u8 *page1;               /* Content of page 1 */
+};
+
+/* Store an error message */
+static void scrubBackupErr(ScrubState *p, const char *zFormat, ...){
+  va_list ap;
+  sqlite3_free(p->zErr);
+  va_start(ap, zFormat);
+  p->zErr = sqlite3_vmprintf(zFormat, ap);
+  va_end(ap);
+  if( p->rcErr==0 ) p->rcErr = SQLITE_ERROR;
+}
+
+/* Allocate memory to hold a single page of content */
+static u8 *scrubBackupAllocPage(ScrubState *p){
+  u8 *pPage;
+  if( p->rcErr ) return 0;
+  pPage = sqlite3_malloc( p->szPage );
+  if( pPage==0 ) p->rcErr = SQLITE_NOMEM;
+  return pPage;
+}
+
+/* Read a page from the source database into memory.  Use the memory
+** provided by pBuf if not NULL or allocate a new page if pBuf==NULL.
+*/
+static u8 *scrubBackupRead(ScrubState *p, int pgno, u8 *pBuf){
+  int rc;
+  sqlite3_int64 iOff;
+  u8 *pOut = pBuf;
+  if( p->rcErr ) return 0;
+  if( pOut==0 ){
+    pOut = scrubBackupAllocPage(p);
+    if( pOut==0 ) return 0;
+  }
+  iOff = (pgno-1)*(sqlite3_int64)p->szPage;
+  rc = p->pSrc->pMethods->xRead(p->pSrc, pOut, p->szPage, iOff);
+  if( rc!=SQLITE_OK ){
+    if( pBuf==0 ) sqlite3_free(pOut);
+    pOut = 0;
+    scrubBackupErr(p, "read failed for page %d", pgno);
+    p->rcErr = SQLITE_IOERR;
+  }
+  return pOut;  
+}
+
+/* Write a page to the destination database */
+static void scrubBackupWrite(ScrubState *p, int pgno, const u8 *pData){
+  int rc;
+  sqlite3_int64 iOff;
+  if( p->rcErr ) return;
+  iOff = (pgno-1)*(sqlite3_int64)p->szPage;
+  rc = p->pDest->pMethods->xWrite(p->pDest, pData, p->szPage, iOff);
+  if( rc!=SQLITE_OK ){
+    scrubBackupErr(p, "write failed for page %d", pgno);
+    p->rcErr = SQLITE_IOERR;
+  }
+  if( (u32)pgno>p->iLastPage ) p->iLastPage = pgno;
+}
+
+/* Prepare a statement against the "db" database. */
+static sqlite3_stmt *scrubBackupPrepare(
+  ScrubState *p,      /* Backup context */
+  sqlite3 *db,        /* Database to prepare against */
+  const char *zSql    /* SQL statement */
+){
+  sqlite3_stmt *pStmt;
+  if( p->rcErr ) return 0;
+  p->rcErr = sqlite3_prepare_v2(db, zSql, -1, &pStmt, 0);
+  if( p->rcErr ){
+    scrubBackupErr(p, "SQL error \"%s\" on \"%s\"",
+                   sqlite3_errmsg(db), zSql);
+    sqlite3_finalize(pStmt);
+    return 0;
+  }
+  return pStmt;
+}
+
+
+/* Open the source database file */
+static void scrubBackupOpenSrc(ScrubState *p){
+  sqlite3_stmt *pStmt;
+  int rc;
+  /* Open the source database file */
+  p->rcErr = sqlite3_open_v2(p->zSrcFile, &p->dbSrc,
+                 SQLITE_OPEN_READWRITE |
+                 SQLITE_OPEN_URI | SQLITE_OPEN_PRIVATECACHE, 0);
+  if( p->rcErr ){
+    scrubBackupErr(p, "cannot open source database: %s",
+                      sqlite3_errmsg(p->dbSrc));
+    return;
+  }
+  p->rcErr = sqlite3_exec(p->dbSrc, "SELECT 1 FROM sqlite_schema; BEGIN;",
+                          0, 0, 0);
+  if( p->rcErr ){
+    scrubBackupErr(p,
+       "cannot start a read transaction on the source database: %s",
+       sqlite3_errmsg(p->dbSrc));
+    return;
+  }
+  rc = sqlite3_wal_checkpoint_v2(p->dbSrc, "main", SQLITE_CHECKPOINT_FULL,
+                                 0, 0);
+  if( rc ){
+    scrubBackupErr(p, "cannot checkpoint the source database");
+    return;
+  }
+  pStmt = scrubBackupPrepare(p, p->dbSrc, "PRAGMA page_size");
+  if( pStmt==0 ) return;
+  rc = sqlite3_step(pStmt);
+  if( rc==SQLITE_ROW ){
+    p->szPage = sqlite3_column_int(pStmt, 0);
+  }else{
+    scrubBackupErr(p, "unable to determine the page size");
+  }
+  sqlite3_finalize(pStmt);
+  if( p->rcErr ) return;
+  pStmt = scrubBackupPrepare(p, p->dbSrc, "PRAGMA page_count");
+  if( pStmt==0 ) return;
+  rc = sqlite3_step(pStmt);
+  if( rc==SQLITE_ROW ){
+    p->nPage = sqlite3_column_int(pStmt, 0);
+  }else{
+    scrubBackupErr(p, "unable to determine the size of the source database");
+  }
+  sqlite3_finalize(pStmt);
+  sqlite3_file_control(p->dbSrc, "main", SQLITE_FCNTL_FILE_POINTER, &p->pSrc);
+  if( p->pSrc==0 || p->pSrc->pMethods==0 ){
+    scrubBackupErr(p, "cannot get the source file handle");
+    p->rcErr = SQLITE_ERROR;
+  }
+}
+
+/* Create and open the destination file */
+static void scrubBackupOpenDest(ScrubState *p){
+  sqlite3_stmt *pStmt;
+  int rc;
+  char *zSql;
+  if( p->rcErr ) return;
+  p->rcErr = sqlite3_open_v2(p->zDestFile, &p->dbDest,
+                 SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE |
+                 SQLITE_OPEN_URI | SQLITE_OPEN_PRIVATECACHE, 0);
+  if( p->rcErr ){
+    scrubBackupErr(p, "cannot open destination database: %s",
+                      sqlite3_errmsg(p->dbDest));
+    return;
+  }
+  zSql = sqlite3_mprintf("PRAGMA page_size(%u);", p->szPage);
+  if( zSql==0 ){
+    p->rcErr = SQLITE_NOMEM;
+    return;
+  }
+  p->rcErr = sqlite3_exec(p->dbDest, zSql, 0, 0, 0);
+  sqlite3_free(zSql);
+  if( p->rcErr ){
+    scrubBackupErr(p,
+       "cannot set the page size on the destination database: %s",
+       sqlite3_errmsg(p->dbDest));
+    return;
+  }
+  sqlite3_exec(p->dbDest, "PRAGMA journal_mode=OFF;", 0, 0, 0);
+  p->rcErr = sqlite3_exec(p->dbDest, "BEGIN EXCLUSIVE;", 0, 0, 0);
+  if( p->rcErr ){
+    scrubBackupErr(p,
+       "cannot start a write transaction on the destination database: %s",
+       sqlite3_errmsg(p->dbDest));
+    return;
+  }
+  pStmt = scrubBackupPrepare(p, p->dbDest, "PRAGMA page_count;");
+  if( pStmt==0 ) return;
+  rc = sqlite3_step(pStmt);
+  if( rc!=SQLITE_ROW ){
+    scrubBackupErr(p, "cannot measure the size of the destination");
+  }else if( sqlite3_column_int(pStmt, 0)>1 ){
+    scrubBackupErr(p, "destination database is not empty - holds %d pages",
+                   sqlite3_column_int(pStmt, 0));
+  }
+  sqlite3_finalize(pStmt);
+  sqlite3_file_control(p->dbDest, "main", SQLITE_FCNTL_FILE_POINTER, &p->pDest);
+  if( p->pDest==0 || p->pDest->pMethods==0 ){
+    scrubBackupErr(p, "cannot get the destination file handle");
+    p->rcErr = SQLITE_ERROR;
+  }
+}
+
+/* Read a 32-bit big-endian integer */
+static u32 scrubBackupInt32(const u8 *a){
+  u32 v = a[3];
+  v += ((u32)a[2])<<8;
+  v += ((u32)a[1])<<16;
+  v += ((u32)a[0])<<24;
+  return v;
+}
+
+/* Read a 16-bit big-endian integer */
+static u32 scrubBackupInt16(const u8 *a){
+  return (a[0]<<8) + a[1];
+}
+
+/*
+** Read a varint.  Put the value in *pVal and return the number of bytes.
+*/
+static int scrubBackupVarint(const u8 *z, sqlite3_int64 *pVal){
+  sqlite3_int64 v = 0;
+  int i;
+  for(i=0; i<8; i++){
+    v = (v<<7) + (z[i]&0x7f);
+    if( (z[i]&0x80)==0 ){ *pVal = v; return i+1; }
+  }
+  v = (v<<8) + (z[i]&0xff);
+  *pVal = v;
+  return 9;
+}
+
+/*
+** Return the number of bytes in a varint.
+*/
+static int scrubBackupVarintSize(const u8 *z){
+  int i;
+  for(i=0; i<8; i++){
+    if( (z[i]&0x80)==0 ){ return i+1; }
+  }
+  return 9;
+}
+
+/*
+** Copy the freelist trunk page given, and all its descendents,
+** zeroing out as much as possible in the process.
+*/
+static void scrubBackupFreelist(ScrubState *p, int pgno, u32 nFree){
+  u8 *a, *aBuf;
+  u32 n, mx;
+
+  if( p->rcErr ) return;
+  aBuf = scrubBackupAllocPage(p);
+  if( aBuf==0 ) return;
+ 
+  while( pgno && nFree){
+    a = scrubBackupRead(p, pgno, aBuf);
+    if( a==0 ) break;
+    n = scrubBackupInt32(&a[4]);
+    mx = p->szUsable/4 - 2;
+    if( n<mx ){
+      memset(&a[n*4+8], 0, 4*(mx-n));
+    }
+    scrubBackupWrite(p, pgno, a);
+    pgno = scrubBackupInt32(a);
+#if 0
+    /* There is really no point in copying the freelist leaf pages.
+    ** Simply leave them uninitialized in the destination database.  The
+    ** OS filesystem should zero those pages for us automatically.
+    */
+    for(i=0; i<n && nFree; i++){
+      u32 iLeaf = scrubBackupInt32(&a[i*4+8]);
+      if( aZero==0 ){
+        aZero = scrubBackupAllocPage(p);
+        if( aZero==0 ){ pgno = 0; break; }
+        memset(aZero, 0, p->szPage);
+      }
+      scrubBackupWrite(p, iLeaf, aZero);
+      nFree--;
+    }
+#endif
+  }
+  sqlite3_free(aBuf);
+}
+
+/*
+** Copy an overflow chain from source to destination.  Zero out any
+** unused tail at the end of the overflow chain.
+*/
+static void scrubBackupOverflow(ScrubState *p, int pgno, u32 nByte){
+  u8 *a, *aBuf;
+
+  aBuf = scrubBackupAllocPage(p);
+  if( aBuf==0 ) return;
+  while( nByte>0 && pgno!=0 ){
+    a = scrubBackupRead(p, pgno, aBuf);
+    if( a==0 ) break;
+    if( nByte >= (p->szUsable)-4 ){
+      nByte -= (p->szUsable) - 4;
+    }else{
+      u32 x = (p->szUsable - 4) - nByte;
+      u32 i = p->szUsable - x;
+      memset(&a[i], 0, x);
+      nByte = 0;
+    }
+    scrubBackupWrite(p, pgno, a);
+    pgno = scrubBackupInt32(a);
+  }
+  sqlite3_free(aBuf);      
+}
+   
+
+/*
+** Copy B-Tree page pgno, and all of its children, from source to destination.
+** Zero out deleted content during the copy.
+*/
+static void scrubBackupBtree(ScrubState *p, int pgno, int iDepth){
+  u8 *a;
+  u32 i, n, pc;
+  u32 nCell;
+  u32 nPrefix;
+  u32 szHdr;
+  u32 iChild;
+  u8 *aTop;
+  u8 *aCell;
+  u32 x, y;
+  int ln = 0;
+
+  
+  if( p->rcErr ) return;
+  if( iDepth>50 ){
+    scrubBackupErr(p, "corrupt: b-tree too deep at page %d", pgno);
+    return;
+  }
+  if( pgno==1 ){
+    a = p->page1;
+  }else{
+    a = scrubBackupRead(p, pgno, 0);
+    if( a==0 ) return;
+  }
+  nPrefix = pgno==1 ? 100 : 0;
+  aTop = &a[nPrefix];
+  szHdr = 8 + 4*(aTop[0]==0x02 || aTop[0]==0x05);
+  aCell = aTop + szHdr;
+  nCell = scrubBackupInt16(&aTop[3]);
+
+  /* Zero out the gap between the cell index and the start of the
+  ** cell content area */
+  x = scrubBackupInt16(&aTop[5]);  /* First byte of cell content area */
+  if( x>p->szUsable ){ ln=__LINE__; goto btree_corrupt; }
+  y = szHdr + nPrefix + nCell*2;
+  if( y>x ){ ln=__LINE__; goto btree_corrupt; }
+  if( y<x ) memset(a+y, 0, x-y);  /* Zero the gap */
+
+  /* Zero out all the free blocks */  
+  pc = scrubBackupInt16(&aTop[1]);
+  if( pc>0 && pc<x ){ ln=__LINE__; goto btree_corrupt; }
+  while( pc ){
+    if( pc>(p->szUsable)-4 ){ ln=__LINE__; goto btree_corrupt; }
+    n = scrubBackupInt16(&a[pc+2]);
+    if( pc+n>(p->szUsable) ){ ln=__LINE__; goto btree_corrupt; }
+    if( n>4 ) memset(&a[pc+4], 0, n-4);
+    x = scrubBackupInt16(&a[pc]);
+    if( x<pc+4 && x>0 ){ ln=__LINE__; goto btree_corrupt; }
+    pc = x;
+  }
+
+  /* Write this one page */
+  scrubBackupWrite(p, pgno, a);
+
+  /* Walk the tree and process child pages */
+  for(i=0; i<nCell; i++){
+    u32 X, M, K, nLocal;
+    sqlite3_int64 P;
+    pc = scrubBackupInt16(&aCell[i*2]);
+    if( pc <= szHdr ){ ln=__LINE__; goto btree_corrupt; }
+    if( pc > p->szUsable-3 ){ ln=__LINE__; goto btree_corrupt; }
+    if( aTop[0]==0x05 || aTop[0]==0x02 ){
+      if( pc+4 > p->szUsable ){ ln=__LINE__; goto btree_corrupt; }
+      iChild = scrubBackupInt32(&a[pc]);
+      pc += 4;
+      scrubBackupBtree(p, iChild, iDepth+1);
+      if( aTop[0]==0x05 ) continue;
+    }
+    pc += scrubBackupVarint(&a[pc], &P);
+    if( pc >= p->szUsable ){ ln=__LINE__; goto btree_corrupt; }
+    if( aTop[0]==0x0d ){
+      X = p->szUsable - 35;
+    }else{
+      X = ((p->szUsable - 12)*64/255) - 23;
+    }
+    if( P<=X ){
+      /* All content is local.  No overflow */
+      continue;
+    }
+    M = ((p->szUsable - 12)*32/255)-23;
+    K = M + ((P-M)%(p->szUsable-4));
+    if( aTop[0]==0x0d ){
+      pc += scrubBackupVarintSize(&a[pc]);
+      if( pc > (p->szUsable-4) ){ ln=__LINE__; goto btree_corrupt; }
+    }
+    nLocal = K<=X ? K : M;
+    if( pc+nLocal > p->szUsable-4 ){ ln=__LINE__; goto btree_corrupt; }
+    iChild = scrubBackupInt32(&a[pc+nLocal]);
+    scrubBackupOverflow(p, iChild, (u32)(P-nLocal));
+  }
+
+  /* Walk the right-most tree */
+  if( aTop[0]==0x05 || aTop[0]==0x02 ){
+    iChild = scrubBackupInt32(&aTop[8]);
+    scrubBackupBtree(p, iChild, iDepth+1);
+  }
+
+  /* All done */
+  if( pgno>1 ) sqlite3_free(a);
+  return;
+
+btree_corrupt:
+  scrubBackupErr(p, "corruption on page %d of source database (errid=%d)",
+                 pgno, ln);
+  if( pgno>1 ) sqlite3_free(a);  
+}
+
+/*
+** Copy all ptrmap pages from source to destination.
+** This routine is only called if the source database is in autovacuum
+** or incremental vacuum mode.
+*/
+static void scrubBackupPtrmap(ScrubState *p){
+  u32 pgno = 2;
+  u32 J = p->szUsable/5;
+  u32 iLock = (1073742335/p->szPage)+1;
+  u8 *a, *pBuf;
+  if( p->rcErr ) return;
+  pBuf = scrubBackupAllocPage(p);
+  if( pBuf==0 ) return;
+  while( pgno<=p->nPage ){
+    a = scrubBackupRead(p, pgno, pBuf);
+    if( a==0 ) break;
+    scrubBackupWrite(p, pgno, a);
+    pgno += J+1;
+    if( pgno==iLock ) pgno++;
+  }
+  sqlite3_free(pBuf);
+}
+
+int sqlite3_scrub_backup(
+  const char *zSrcFile,    /* Source file */
+  const char *zDestFile,   /* Destination file */
+  char **pzErr             /* Write error here if non-NULL */
+){
+  ScrubState s;
+  u32 n, i;
+  sqlite3_stmt *pStmt;
+
+  memset(&s, 0, sizeof(s));
+  s.zSrcFile = zSrcFile;
+  s.zDestFile = zDestFile;
+
+  /* Open both source and destination databases */
+  scrubBackupOpenSrc(&s);
+  scrubBackupOpenDest(&s);
+
+  /* Read in page 1 */
+  s.page1 = scrubBackupRead(&s, 1, 0);
+  if( s.page1==0 ) goto scrub_abort;
+  s.szUsable = s.szPage - s.page1[20];
+
+  /* Copy the freelist */    
+  n = scrubBackupInt32(&s.page1[36]);
+  i = scrubBackupInt32(&s.page1[32]);
+  if( n ) scrubBackupFreelist(&s, i, n);
+
+  /* Copy ptrmap pages */
+  n = scrubBackupInt32(&s.page1[52]);
+  if( n ) scrubBackupPtrmap(&s);
+
+  /* Copy all of the btrees */
+  scrubBackupBtree(&s, 1, 0);
+  pStmt = scrubBackupPrepare(&s, s.dbSrc,
+       "SELECT rootpage FROM sqlite_schema WHERE coalesce(rootpage,0)>0");
+  if( pStmt==0 ) goto scrub_abort;
+  while( sqlite3_step(pStmt)==SQLITE_ROW ){
+    i = (u32)sqlite3_column_int(pStmt, 0);
+    scrubBackupBtree(&s, i, 0);
+  }
+  sqlite3_finalize(pStmt);
+
+  /* If the last page of the input db file is a free-list leaf, then the
+  ** backup file on disk is still smaller than the size indicated within 
+  ** the database header. In this case, write a page of zeroes to the 
+  ** last page of the backup database so that SQLite does not mistakenly
+  ** think the db is corrupt.  */
+  if( s.iLastPage<s.nPage ){
+    u8 *aZero = scrubBackupAllocPage(&s);
+    if( aZero ){
+      memset(aZero, 0, s.szPage);
+      scrubBackupWrite(&s, s.nPage, aZero);
+      sqlite3_free(aZero);
+    }
+  }
+
+scrub_abort:    
+  /* Close the destination database without closing the transaction. If we
+  ** commit, page zero will be overwritten. */
+  sqlite3_close(s.dbDest);
+
+  /* But do close out the read-transaction on the source database */
+  sqlite3_exec(s.dbSrc, "COMMIT;", 0, 0, 0);
+  sqlite3_close(s.dbSrc);
+  sqlite3_free(s.page1);
+  if( pzErr ){
+    *pzErr = s.zErr;
+  }else{
+    sqlite3_free(s.zErr);
+  }
+  return s.rcErr;
+}   
+
+#ifdef SCRUB_STANDALONE
+/* Error and warning log */
+static void errorLogCallback(void *pNotUsed, int iErr, const char *zMsg){
+  const char *zType;
+  switch( iErr&0xff ){
+    case SQLITE_WARNING: zType = "WARNING";  break;
+    case SQLITE_NOTICE:  zType = "NOTICE";   break;
+    default:             zType = "ERROR";    break;
+  }
+  fprintf(stderr, "%s: %s\n", zType, zMsg);
+}
+
+/* The main() routine when this utility is run as a stand-alone program */
+int main(int argc, char **argv){
+  char *zErr = 0;
+  int rc;
+  if( argc!=3 ){
+    fprintf(stderr,"Usage: %s SOURCE DESTINATION\n", argv[0]);
+    exit(1);
+  }
+  sqlite3_config(SQLITE_CONFIG_LOG, errorLogCallback, 0);
+  rc = sqlite3_scrub_backup(argv[1], argv[2], &zErr);
+  if( rc==SQLITE_NOMEM ){
+    fprintf(stderr, "%s: out of memory\n", argv[0]);
+    exit(1);
+  }
+  if( zErr ){
+    fprintf(stderr, "%s: %s\n", argv[0], zErr);
+    sqlite3_free(zErr);
+    exit(1);
+  }
+  return 0;
+}
+#endif
diff --git a/ext/misc/series.c b/ext/misc/series.c
new file mode 100644
index 0000000000000000000000000000000000000000..aff97969224f684444b6f8bd0c407ddfec979eec
--- /dev/null
+++ b/ext/misc/series.c
@@ -0,0 +1,841 @@
+/*
+** 2015-08-18, 2023-04-28
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** This file demonstrates how to create a table-valued-function using
+** a virtual table.  This demo implements the generate_series() function
+** which gives the same results as the eponymous function in PostgreSQL,
+** within the limitation that its arguments are signed 64-bit integers.
+**
+** Considering its equivalents to generate_series(start,stop,step): A
+** value V[n] sequence is produced for integer n ascending from 0 where
+**  ( V[n] == start + n * step  &&  sgn(V[n] - stop) * sgn(step) >= 0 )
+** for each produced value (independent of production time ordering.)
+**
+** All parameters must be either integer or convertable to integer.
+** The start parameter is required.
+** The stop parameter defaults to (1<<32)-1 (aka 4294967295 or 0xffffffff)
+** The step parameter defaults to 1 and 0 is treated as 1.
+**
+** Examples:
+**
+**      SELECT * FROM generate_series(0,100,5);
+**
+** The query above returns integers from 0 through 100 counting by steps
+** of 5.
+**
+**      SELECT * FROM generate_series(0,100);
+**
+** Integers from 0 through 100 with a step size of 1.
+**
+**      SELECT * FROM generate_series(20) LIMIT 10;
+**
+** Integers 20 through 29.
+**
+**      SELECT * FROM generate_series(0,-100,-5);
+**
+** Integers 0 -5 -10 ... -100.
+**
+**      SELECT * FROM generate_series(0,-1);
+**
+** Empty sequence.
+**
+** HOW IT WORKS
+**
+** The generate_series "function" is really a virtual table with the
+** following schema:
+**
+**     CREATE TABLE generate_series(
+**       value,
+**       start HIDDEN,
+**       stop HIDDEN,
+**       step HIDDEN
+**     );
+**
+** The virtual table also has a rowid, logically equivalent to n+1 where
+** "n" is the ascending integer in the aforesaid production definition.
+**
+** Function arguments in queries against this virtual table are translated
+** into equality constraints against successive hidden columns.  In other
+** words, the following pairs of queries are equivalent to each other:
+**
+**    SELECT * FROM generate_series(0,100,5);
+**    SELECT * FROM generate_series WHERE start=0 AND stop=100 AND step=5;
+**
+**    SELECT * FROM generate_series(0,100);
+**    SELECT * FROM generate_series WHERE start=0 AND stop=100;
+**
+**    SELECT * FROM generate_series(20) LIMIT 10;
+**    SELECT * FROM generate_series WHERE start=20 LIMIT 10;
+**
+** The generate_series virtual table implementation leaves the xCreate method
+** set to NULL.  This means that it is not possible to do a CREATE VIRTUAL
+** TABLE command with "generate_series" as the USING argument.  Instead, there
+** is a single generate_series virtual table that is always available without
+** having to be created first.
+**
+** The xBestIndex method looks for equality constraints against the hidden
+** start, stop, and step columns, and if present, it uses those constraints
+** to bound the sequence of generated values.  If the equality constraints
+** are missing, it uses 0 for start, 4294967295 for stop, and 1 for step.
+** xBestIndex returns a small cost when both start and stop are available,
+** and a very large cost if either start or stop are unavailable.  This
+** encourages the query planner to order joins such that the bounds of the
+** series are well-defined.
+**
+** Update on 2024-08-22:
+** xBestIndex now also looks for equality and inequality constraints against
+** the value column and uses those constraints as additional bounds against
+** the sequence range.  Thus, a query like this:
+**
+**     SELECT value FROM generate_series($SA,$EA)
+**      WHERE value BETWEEN $SB AND $EB;
+**
+** Is logically the same as:
+**
+**     SELECT value FROM generate_series(max($SA,$SB),min($EA,$EB));
+**
+** Constraints on the value column can server as substitutes for constraints
+** on the hidden start and stop columns.  So, the following two queries
+** are equivalent:
+**
+**     SELECT value FROM generate_series($S,$E);
+**     SELECT value FROM generate_series WHERE value BETWEEN $S and $E;
+**
+*/
+#include "sqlite3ext.h"
+SQLITE_EXTENSION_INIT1
+#include <assert.h>
+#include <string.h>
+#include <limits.h>
+
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+/*
+** Return that member of a generate_series(...) sequence whose 0-based
+** index is ix. The 0th member is given by smBase. The sequence members
+** progress per ix increment by smStep.
+*/
+static sqlite3_int64 genSeqMember(
+  sqlite3_int64 smBase,
+  sqlite3_int64 smStep,
+  sqlite3_uint64 ix
+){
+  static const sqlite3_uint64 mxI64 =
+      ((sqlite3_uint64)0x7fffffff)<<32 | 0xffffffff;
+  if( ix>=mxI64 ){
+    /* Get ix into signed i64 range. */
+    ix -= mxI64;
+    /* With 2's complement ALU, this next can be 1 step, but is split into
+     * 2 for UBSAN's satisfaction (and hypothetical 1's complement ALUs.) */
+    smBase += (mxI64/2) * smStep;
+    smBase += (mxI64 - mxI64/2) * smStep;
+  }
+  /* Under UBSAN (or on 1's complement machines), must do this last term
+   * in steps to avoid the dreaded (and harmless) signed multiply overlow. */
+  if( ix>=2 ){
+    sqlite3_int64 ix2 = (sqlite3_int64)ix/2;
+    smBase += ix2*smStep;
+    ix -= ix2;
+  }
+  return smBase + ((sqlite3_int64)ix)*smStep;
+}
+
+typedef unsigned char u8;
+
+typedef struct SequenceSpec {
+  sqlite3_int64 iOBase;        /* Original starting value ("start") */
+  sqlite3_int64 iOTerm;        /* Original terminal value ("stop") */
+  sqlite3_int64 iBase;         /* Starting value to actually use */
+  sqlite3_int64 iTerm;         /* Terminal value to actually use */
+  sqlite3_int64 iStep;         /* Increment ("step") */
+  sqlite3_uint64 uSeqIndexMax; /* maximum sequence index (aka "n") */
+  sqlite3_uint64 uSeqIndexNow; /* Current index during generation */
+  sqlite3_int64 iValueNow;     /* Current value during generation */
+  u8 isNotEOF;                 /* Sequence generation not exhausted */
+  u8 isReversing;              /* Sequence is being reverse generated */
+} SequenceSpec;
+
+/*
+** Prepare a SequenceSpec for use in generating an integer series
+** given initialized iBase, iTerm and iStep values. Sequence is
+** initialized per given isReversing. Other members are computed.
+*/
+static void setupSequence( SequenceSpec *pss ){
+  int bSameSigns;
+  pss->uSeqIndexMax = 0;
+  pss->isNotEOF = 0;
+  bSameSigns = (pss->iBase < 0)==(pss->iTerm < 0);
+  if( pss->iTerm < pss->iBase ){
+    sqlite3_uint64 nuspan = 0;
+    if( bSameSigns ){
+      nuspan = (sqlite3_uint64)(pss->iBase - pss->iTerm);
+    }else{
+      /* Under UBSAN (or on 1's complement machines), must do this in steps.
+       * In this clause, iBase>=0 and iTerm<0 . */
+      nuspan = 1;
+      nuspan += pss->iBase;
+      nuspan += -(pss->iTerm+1);
+    }
+    if( pss->iStep<0 ){
+      pss->isNotEOF = 1;
+      if( nuspan==ULONG_MAX ){
+        pss->uSeqIndexMax = ( pss->iStep>LLONG_MIN )? nuspan/-pss->iStep : 1;
+      }else if( pss->iStep>LLONG_MIN ){
+        pss->uSeqIndexMax = nuspan/-pss->iStep;
+      }
+    }
+  }else if( pss->iTerm > pss->iBase ){
+    sqlite3_uint64 puspan = 0;
+    if( bSameSigns ){
+      puspan = (sqlite3_uint64)(pss->iTerm - pss->iBase);
+    }else{
+      /* Under UBSAN (or on 1's complement machines), must do this in steps.
+       * In this clause, iTerm>=0 and iBase<0 . */
+      puspan = 1;
+      puspan += pss->iTerm;
+      puspan += -(pss->iBase+1);
+    }
+    if( pss->iStep>0 ){
+      pss->isNotEOF = 1;
+      pss->uSeqIndexMax = puspan/pss->iStep;
+    }
+  }else if( pss->iTerm == pss->iBase ){
+      pss->isNotEOF = 1;
+      pss->uSeqIndexMax = 0;
+  }
+  pss->uSeqIndexNow = (pss->isReversing)? pss->uSeqIndexMax : 0;
+  pss->iValueNow = (pss->isReversing)
+    ? genSeqMember(pss->iBase, pss->iStep, pss->uSeqIndexMax)
+    : pss->iBase;
+}
+
+/*
+** Progress sequence generator to yield next value, if any.
+** Leave its state to either yield next value or be at EOF.
+** Return whether there is a next value, or 0 at EOF.
+*/
+static int progressSequence( SequenceSpec *pss ){
+  if( !pss->isNotEOF ) return 0;
+  if( pss->isReversing ){
+    if( pss->uSeqIndexNow > 0 ){
+      pss->uSeqIndexNow--;
+      pss->iValueNow -= pss->iStep;
+    }else{
+      pss->isNotEOF = 0;
+    }
+  }else{
+    if( pss->uSeqIndexNow < pss->uSeqIndexMax ){
+      pss->uSeqIndexNow++;
+      pss->iValueNow += pss->iStep;
+    }else{
+      pss->isNotEOF = 0;
+    }
+  }
+  return pss->isNotEOF;
+}
+
+/* series_cursor is a subclass of sqlite3_vtab_cursor which will
+** serve as the underlying representation of a cursor that scans
+** over rows of the result
+*/
+typedef struct series_cursor series_cursor;
+struct series_cursor {
+  sqlite3_vtab_cursor base;  /* Base class - must be first */
+  SequenceSpec ss;           /* (this) Derived class data */
+};
+
+/*
+** The seriesConnect() method is invoked to create a new
+** series_vtab that describes the generate_series virtual table.
+**
+** Think of this routine as the constructor for series_vtab objects.
+**
+** All this routine needs to do is:
+**
+**    (1) Allocate the series_vtab object and initialize all fields.
+**
+**    (2) Tell SQLite (via the sqlite3_declare_vtab() interface) what the
+**        result set of queries against generate_series will look like.
+*/
+static int seriesConnect(
+  sqlite3 *db,
+  void *pUnused,
+  int argcUnused, const char *const*argvUnused,
+  sqlite3_vtab **ppVtab,
+  char **pzErrUnused
+){
+  sqlite3_vtab *pNew;
+  int rc;
+
+/* Column numbers */
+#define SERIES_COLUMN_VALUE 0
+#define SERIES_COLUMN_START 1
+#define SERIES_COLUMN_STOP  2
+#define SERIES_COLUMN_STEP  3
+
+  (void)pUnused;
+  (void)argcUnused;
+  (void)argvUnused;
+  (void)pzErrUnused;
+  rc = sqlite3_declare_vtab(db,
+     "CREATE TABLE x(value,start hidden,stop hidden,step hidden)");
+  if( rc==SQLITE_OK ){
+    pNew = *ppVtab = sqlite3_malloc( sizeof(*pNew) );
+    if( pNew==0 ) return SQLITE_NOMEM;
+    memset(pNew, 0, sizeof(*pNew));
+    sqlite3_vtab_config(db, SQLITE_VTAB_INNOCUOUS);
+  }
+  return rc;
+}
+
+/*
+** This method is the destructor for series_cursor objects.
+*/
+static int seriesDisconnect(sqlite3_vtab *pVtab){
+  sqlite3_free(pVtab);
+  return SQLITE_OK;
+}
+
+/*
+** Constructor for a new series_cursor object.
+*/
+static int seriesOpen(sqlite3_vtab *pUnused, sqlite3_vtab_cursor **ppCursor){
+  series_cursor *pCur;
+  (void)pUnused;
+  pCur = sqlite3_malloc( sizeof(*pCur) );
+  if( pCur==0 ) return SQLITE_NOMEM;
+  memset(pCur, 0, sizeof(*pCur));
+  *ppCursor = &pCur->base;
+  return SQLITE_OK;
+}
+
+/*
+** Destructor for a series_cursor.
+*/
+static int seriesClose(sqlite3_vtab_cursor *cur){
+  sqlite3_free(cur);
+  return SQLITE_OK;
+}
+
+
+/*
+** Advance a series_cursor to its next row of output.
+*/
+static int seriesNext(sqlite3_vtab_cursor *cur){
+  series_cursor *pCur = (series_cursor*)cur;
+  progressSequence( & pCur->ss );
+  return SQLITE_OK;
+}
+
+/*
+** Return values of columns for the row at which the series_cursor
+** is currently pointing.
+*/
+static int seriesColumn(
+  sqlite3_vtab_cursor *cur,   /* The cursor */
+  sqlite3_context *ctx,       /* First argument to sqlite3_result_...() */
+  int i                       /* Which column to return */
+){
+  series_cursor *pCur = (series_cursor*)cur;
+  sqlite3_int64 x = 0;
+  switch( i ){
+    case SERIES_COLUMN_START:  x = pCur->ss.iOBase;     break;
+    case SERIES_COLUMN_STOP:   x = pCur->ss.iOTerm;     break;
+    case SERIES_COLUMN_STEP:   x = pCur->ss.iStep;      break;
+    default:                   x = pCur->ss.iValueNow;  break;
+  }
+  sqlite3_result_int64(ctx, x);
+  return SQLITE_OK;
+}
+
+#ifndef LARGEST_UINT64
+#define LARGEST_INT64  (0xffffffff|(((sqlite3_int64)0x7fffffff)<<32))
+#define LARGEST_UINT64 (0xffffffff|(((sqlite3_uint64)0xffffffff)<<32))
+#define SMALLEST_INT64 (((sqlite3_int64)-1) - LARGEST_INT64)
+#endif
+
+/*
+** Return the rowid for the current row, logically equivalent to n+1 where
+** "n" is the ascending integer in the aforesaid production definition.
+*/
+static int seriesRowid(sqlite3_vtab_cursor *cur, sqlite_int64 *pRowid){
+  series_cursor *pCur = (series_cursor*)cur;
+  sqlite3_uint64 n = pCur->ss.uSeqIndexNow;
+  *pRowid = (sqlite3_int64)((n<LARGEST_UINT64)? n+1 : 0);
+  return SQLITE_OK;
+}
+
+/*
+** Return TRUE if the cursor has been moved off of the last
+** row of output.
+*/
+static int seriesEof(sqlite3_vtab_cursor *cur){
+  series_cursor *pCur = (series_cursor*)cur;
+  return !pCur->ss.isNotEOF;
+}
+
+/* True to cause run-time checking of the start=, stop=, and/or step=
+** parameters.  The only reason to do this is for testing the
+** constraint checking logic for virtual tables in the SQLite core.
+*/
+#ifndef SQLITE_SERIES_CONSTRAINT_VERIFY
+# define SQLITE_SERIES_CONSTRAINT_VERIFY 0
+#endif
+
+/*
+** This method is called to "rewind" the series_cursor object back
+** to the first row of output.  This method is always called at least
+** once prior to any call to seriesColumn() or seriesRowid() or
+** seriesEof().
+**
+** The query plan selected by seriesBestIndex is passed in the idxNum
+** parameter.  (idxStr is not used in this implementation.)  idxNum
+** is a bitmask showing which constraints are available:
+**
+**   0x0001:    start=VALUE
+**   0x0002:    stop=VALUE
+**   0x0004:    step=VALUE
+**   0x0008:    descending order
+**   0x0010:    ascending order
+**   0x0020:    LIMIT  VALUE
+**   0x0040:    OFFSET  VALUE
+**   0x0080:    value=VALUE
+**   0x0100:    value>=VALUE
+**   0x0200:    value>VALUE
+**   0x1000:    value<=VALUE
+**   0x2000:    value<VALUE
+**
+** This routine should initialize the cursor and position it so that it
+** is pointing at the first row, or pointing off the end of the table
+** (so that seriesEof() will return true) if the table is empty.
+*/
+static int seriesFilter(
+  sqlite3_vtab_cursor *pVtabCursor,
+  int idxNum, const char *idxStrUnused,
+  int argc, sqlite3_value **argv
+){
+  series_cursor *pCur = (series_cursor *)pVtabCursor;
+  int i = 0;
+  int returnNoRows = 0;
+  sqlite3_int64 iMin = SMALLEST_INT64;
+  sqlite3_int64 iMax = LARGEST_INT64;
+  sqlite3_int64 iLimit = 0;
+  sqlite3_int64 iOffset = 0;
+
+  (void)idxStrUnused;
+  if( idxNum & 0x01 ){
+    pCur->ss.iBase = sqlite3_value_int64(argv[i++]);
+  }else{
+    pCur->ss.iBase = 0;
+  }
+  if( idxNum & 0x02 ){
+    pCur->ss.iTerm = sqlite3_value_int64(argv[i++]);
+  }else{
+    pCur->ss.iTerm = 0xffffffff;
+  }
+  if( idxNum & 0x04 ){
+    pCur->ss.iStep = sqlite3_value_int64(argv[i++]);
+    if( pCur->ss.iStep==0 ){
+      pCur->ss.iStep = 1;
+    }else if( pCur->ss.iStep<0 ){
+      if( (idxNum & 0x10)==0 ) idxNum |= 0x08;
+    }
+  }else{
+    pCur->ss.iStep = 1;
+  }
+
+  /* If there are constraints on the value column but there are
+  ** no constraints on  the start, stop, and step columns, then
+  ** initialize the default range to be the entire range of 64-bit signed
+  ** integers.  This range will contracted by the value column constraints
+  ** further below.
+  */
+  if( (idxNum & 0x05)==0 && (idxNum & 0x0380)!=0 ){
+    pCur->ss.iBase = SMALLEST_INT64;
+  }
+  if( (idxNum & 0x06)==0 && (idxNum & 0x3080)!=0 ){
+    pCur->ss.iTerm = LARGEST_INT64;
+  }
+  pCur->ss.iOBase = pCur->ss.iBase;
+  pCur->ss.iOTerm = pCur->ss.iTerm;
+
+  /* Extract the LIMIT and OFFSET values, but do not apply them yet.
+  ** The range must first be constrained by the limits on value.
+  */
+  if( idxNum & 0x20 ){
+    iLimit = sqlite3_value_int64(argv[i++]);
+    if( idxNum & 0x40 ){
+      iOffset = sqlite3_value_int64(argv[i++]);
+    }
+  }
+
+  if( idxNum & 0x3380 ){
+    /* Extract the maximum range of output values determined by
+    ** constraints on the "value" column.
+    */
+    if( idxNum & 0x0080 ){
+      iMin = iMax = sqlite3_value_int64(argv[i++]);
+    }else{
+      if( idxNum & 0x0300 ){
+        iMin = sqlite3_value_int64(argv[i++]);
+        if( idxNum & 0x0200 ){
+          if( iMin==LARGEST_INT64 ){
+            returnNoRows = 1;
+          }else{
+            iMin++;
+          }
+        }
+      }
+      if( idxNum & 0x3000 ){
+        iMax = sqlite3_value_int64(argv[i++]);
+        if( idxNum & 0x2000 ){
+          if( iMax==SMALLEST_INT64 ){
+            returnNoRows = 1;
+          }else{
+            iMax--;
+          }
+        }
+      }
+      if( iMin>iMax ){
+        returnNoRows = 1;
+      }
+    }
+
+    /* Try to reduce the range of values to be generated based on
+    ** constraints on the "value" column.
+    */
+    if( pCur->ss.iStep>0 ){
+      sqlite3_int64 szStep = pCur->ss.iStep;
+      if( pCur->ss.iBase<iMin ){
+        sqlite3_uint64 d = iMin - pCur->ss.iBase;
+        pCur->ss.iBase += ((d+szStep-1)/szStep)*szStep;
+      }
+      if( pCur->ss.iTerm>iMax ){
+        sqlite3_uint64 d = pCur->ss.iTerm - iMax;
+        pCur->ss.iTerm -= ((d+szStep-1)/szStep)*szStep;
+      }
+    }else{
+      sqlite3_int64 szStep = -pCur->ss.iStep;
+      assert( szStep>0 );
+      if( pCur->ss.iBase>iMax ){
+        sqlite3_uint64 d = pCur->ss.iBase - iMax;
+        pCur->ss.iBase -= ((d+szStep-1)/szStep)*szStep;
+      }
+      if( pCur->ss.iTerm<iMin ){
+        sqlite3_uint64 d = iMin - pCur->ss.iTerm;
+        pCur->ss.iTerm += ((d+szStep-1)/szStep)*szStep;
+      }
+    }
+  }
+
+  /* Apply LIMIT and OFFSET constraints, if any */
+  if( idxNum & 0x20 ){
+    if( iOffset>0 ){
+      pCur->ss.iBase += pCur->ss.iStep*iOffset;
+    }
+    if( iLimit>=0 ){
+      sqlite3_int64 iTerm;
+      iTerm = pCur->ss.iBase + (iLimit - 1)*pCur->ss.iStep;
+      if( pCur->ss.iStep<0 ){
+        if( iTerm>pCur->ss.iTerm ) pCur->ss.iTerm = iTerm;
+      }else{
+        if( iTerm<pCur->ss.iTerm ) pCur->ss.iTerm = iTerm;
+      }
+    }
+  }
+
+
+  for(i=0; i<argc; i++){
+    if( sqlite3_value_type(argv[i])==SQLITE_NULL ){
+      /* If any of the constraints have a NULL value, then return no rows.
+      ** See ticket https://www.sqlite.org/src/info/fac496b61722daf2 */
+      returnNoRows = 1;
+      break;
+    }
+  }
+  if( returnNoRows ){
+    pCur->ss.iBase = 1;
+    pCur->ss.iTerm = 0;
+    pCur->ss.iStep = 1;
+  }
+  if( idxNum & 0x08 ){
+    pCur->ss.isReversing = pCur->ss.iStep > 0;
+  }else{
+    pCur->ss.isReversing = pCur->ss.iStep < 0;
+  }
+  setupSequence( &pCur->ss );
+  return SQLITE_OK;
+}
+
+/*
+** SQLite will invoke this method one or more times while planning a query
+** that uses the generate_series virtual table.  This routine needs to create
+** a query plan for each invocation and compute an estimated cost for that
+** plan.
+**
+** In this implementation idxNum is used to represent the
+** query plan.  idxStr is unused.
+**
+** The query plan is represented by bits in idxNum:
+**
+**   0x0001  start = $num
+**   0x0002  stop = $num
+**   0x0004  step = $num
+**   0x0008  output is in descending order
+**   0x0010  output is in ascending order
+**   0x0020  LIMIT $num
+**   0x0040  OFFSET $num
+**   0x0080  value = $num
+**   0x0100  value >= $num
+**   0x0200  value > $num
+**   0x1000  value <= $num
+**   0x2000  value < $num
+**
+** Only one of 0x0100 or 0x0200 will be returned.  Similarly, only
+** one of 0x1000 or 0x2000 will be returned.  If the 0x0080 is set, then
+** none of the 0xff00 bits will be set.
+**
+** The order of parameters passed to xFilter is as follows:
+**
+**    * The argument to start= if bit 0x0001 is in the idxNum mask
+**    * The argument to stop= if bit 0x0002 is in the idxNum mask
+**    * The argument to step= if bit 0x0004 is in the idxNum mask
+**    * The argument to LIMIT if bit 0x0020 is in the idxNum mask
+**    * The argument to OFFSET if bit 0x0040 is in the idxNum mask
+**    * The argument to value=, or value>= or value> if any of
+**      bits 0x0380 are in the idxNum mask
+**    * The argument to value<= or value< if either of bits 0x3000
+**      are in the mask
+**
+*/
+static int seriesBestIndex(
+  sqlite3_vtab *pVTab,
+  sqlite3_index_info *pIdxInfo
+){
+  int i, j;              /* Loop over constraints */
+  int idxNum = 0;        /* The query plan bitmask */
+#ifndef ZERO_ARGUMENT_GENERATE_SERIES
+  int bStartSeen = 0;    /* EQ constraint seen on the START column */
+#endif
+  int unusableMask = 0;  /* Mask of unusable constraints */
+  int nArg = 0;          /* Number of arguments that seriesFilter() expects */
+  int aIdx[7];           /* Constraints on start, stop, step, LIMIT, OFFSET,
+                         ** and value.  aIdx[5] covers value=, value>=, and
+                         ** value>,  aIdx[6] covers value<= and value< */
+  const struct sqlite3_index_constraint *pConstraint;
+
+  /* This implementation assumes that the start, stop, and step columns
+  ** are the last three columns in the virtual table. */
+  assert( SERIES_COLUMN_STOP == SERIES_COLUMN_START+1 );
+  assert( SERIES_COLUMN_STEP == SERIES_COLUMN_START+2 );
+
+  aIdx[0] = aIdx[1] = aIdx[2] = aIdx[3] = aIdx[4] = aIdx[5] = aIdx[6] = -1;
+  pConstraint = pIdxInfo->aConstraint;
+  for(i=0; i<pIdxInfo->nConstraint; i++, pConstraint++){
+    int iCol;    /* 0 for start, 1 for stop, 2 for step */
+    int iMask;   /* bitmask for those column */
+    int op = pConstraint->op;
+    if( op>=SQLITE_INDEX_CONSTRAINT_LIMIT
+     && op<=SQLITE_INDEX_CONSTRAINT_OFFSET
+    ){
+      if( pConstraint->usable==0 ){
+        /* do nothing */
+      }else if( op==SQLITE_INDEX_CONSTRAINT_LIMIT ){
+        aIdx[3] = i;
+        idxNum |= 0x20;
+      }else{
+        assert( op==SQLITE_INDEX_CONSTRAINT_OFFSET );
+        aIdx[4] = i;
+        idxNum |= 0x40;
+      }
+      continue;
+    }
+    if( pConstraint->iColumn<SERIES_COLUMN_START ){
+      if( pConstraint->iColumn==SERIES_COLUMN_VALUE && pConstraint->usable ){
+        switch( op ){
+          case SQLITE_INDEX_CONSTRAINT_EQ:
+          case SQLITE_INDEX_CONSTRAINT_IS: {
+            idxNum |=  0x0080;
+            idxNum &= ~0x3300;
+            aIdx[5] = i;
+            aIdx[6] = -1;
+#ifndef ZERO_ARGUMENT_GENERATE_SERIES
+            bStartSeen = 1;
+#endif
+            break;
+          }
+          case SQLITE_INDEX_CONSTRAINT_GE: {
+            if( idxNum & 0x0080 ) break;
+            idxNum |=  0x0100;
+            idxNum &= ~0x0200;
+            aIdx[5] = i;
+#ifndef ZERO_ARGUMENT_GENERATE_SERIES
+            bStartSeen = 1;
+#endif
+            break;
+          }
+          case SQLITE_INDEX_CONSTRAINT_GT: {
+            if( idxNum & 0x0080 ) break;
+            idxNum |=  0x0200;
+            idxNum &= ~0x0100;
+            aIdx[5] = i;
+#ifndef ZERO_ARGUMENT_GENERATE_SERIES
+            bStartSeen = 1;
+#endif
+            break;
+          }
+          case SQLITE_INDEX_CONSTRAINT_LE: {
+            if( idxNum & 0x0080 ) break;
+            idxNum |=  0x1000;
+            idxNum &= ~0x2000;
+            aIdx[6] = i;
+            break;
+          }
+          case SQLITE_INDEX_CONSTRAINT_LT: {
+            if( idxNum & 0x0080 ) break;
+            idxNum |=  0x2000;
+            idxNum &= ~0x1000;
+            aIdx[6] = i;
+            break;
+          }
+        }
+      }
+      continue;
+    }
+    iCol = pConstraint->iColumn - SERIES_COLUMN_START;
+    assert( iCol>=0 && iCol<=2 );
+    iMask = 1 << iCol;
+#ifndef ZERO_ARGUMENT_GENERATE_SERIES
+    if( iCol==0 && op==SQLITE_INDEX_CONSTRAINT_EQ ){
+      bStartSeen = 1;
+    }
+#endif
+    if( pConstraint->usable==0 ){
+      unusableMask |=  iMask;
+      continue;
+    }else if( op==SQLITE_INDEX_CONSTRAINT_EQ ){
+      idxNum |= iMask;
+      aIdx[iCol] = i;
+    }
+  }
+  if( aIdx[3]==0 ){
+    /* Ignore OFFSET if LIMIT is omitted */
+    idxNum &= ~0x60;
+    aIdx[4] = 0;
+  }
+  for(i=0; i<7; i++){
+    if( (j = aIdx[i])>=0 ){
+      pIdxInfo->aConstraintUsage[j].argvIndex = ++nArg;
+      pIdxInfo->aConstraintUsage[j].omit =
+         !SQLITE_SERIES_CONSTRAINT_VERIFY || i>=3;
+    }
+  }
+  /* The current generate_column() implementation requires at least one
+  ** argument (the START value).  Legacy versions assumed START=0 if the
+  ** first argument was omitted.  Compile with -DZERO_ARGUMENT_GENERATE_SERIES
+  ** to obtain the legacy behavior */
+#ifndef ZERO_ARGUMENT_GENERATE_SERIES
+  if( !bStartSeen ){
+    sqlite3_free(pVTab->zErrMsg);
+    pVTab->zErrMsg = sqlite3_mprintf(
+        "first argument to \"generate_series()\" missing or unusable");
+    return SQLITE_ERROR;
+  }
+#endif
+  if( (unusableMask & ~idxNum)!=0 ){
+    /* The start, stop, and step columns are inputs.  Therefore if there
+    ** are unusable constraints on any of start, stop, or step then
+    ** this plan is unusable */
+    return SQLITE_CONSTRAINT;
+  }
+  if( (idxNum & 0x03)==0x03 ){
+    /* Both start= and stop= boundaries are available.  This is the 
+    ** the preferred case */
+    pIdxInfo->estimatedCost = (double)(2 - ((idxNum&4)!=0));
+    pIdxInfo->estimatedRows = 1000;
+    if( pIdxInfo->nOrderBy>=1 && pIdxInfo->aOrderBy[0].iColumn==0 ){
+      if( pIdxInfo->aOrderBy[0].desc ){
+        idxNum |= 0x08;
+      }else{
+        idxNum |= 0x10;
+      }
+      pIdxInfo->orderByConsumed = 1;
+    }
+  }else if( (idxNum & 0x21)==0x21 ){
+    /* We have start= and LIMIT */
+    pIdxInfo->estimatedRows = 2500;
+  }else{
+    /* If either boundary is missing, we have to generate a huge span
+    ** of numbers.  Make this case very expensive so that the query
+    ** planner will work hard to avoid it. */
+    pIdxInfo->estimatedRows = 2147483647;
+  }
+  pIdxInfo->idxNum = idxNum;
+#ifdef SQLITE_INDEX_SCAN_HEX
+  pIdxInfo->idxFlags = SQLITE_INDEX_SCAN_HEX;
+#endif
+  return SQLITE_OK;
+}
+
+/*
+** This following structure defines all the methods for the 
+** generate_series virtual table.
+*/
+static sqlite3_module seriesModule = {
+  0,                         /* iVersion */
+  0,                         /* xCreate */
+  seriesConnect,             /* xConnect */
+  seriesBestIndex,           /* xBestIndex */
+  seriesDisconnect,          /* xDisconnect */
+  0,                         /* xDestroy */
+  seriesOpen,                /* xOpen - open a cursor */
+  seriesClose,               /* xClose - close a cursor */
+  seriesFilter,              /* xFilter - configure scan constraints */
+  seriesNext,                /* xNext - advance a cursor */
+  seriesEof,                 /* xEof - check for end of scan */
+  seriesColumn,              /* xColumn - read data */
+  seriesRowid,               /* xRowid - read data */
+  0,                         /* xUpdate */
+  0,                         /* xBegin */
+  0,                         /* xSync */
+  0,                         /* xCommit */
+  0,                         /* xRollback */
+  0,                         /* xFindMethod */
+  0,                         /* xRename */
+  0,                         /* xSavepoint */
+  0,                         /* xRelease */
+  0,                         /* xRollbackTo */
+  0,                         /* xShadowName */
+  0                          /* xIntegrity */
+};
+
+#endif /* SQLITE_OMIT_VIRTUALTABLE */
+
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_series_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  int rc = SQLITE_OK;
+  SQLITE_EXTENSION_INIT2(pApi);
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+  if( sqlite3_libversion_number()<3008012 && pzErrMsg!=0 ){
+    *pzErrMsg = sqlite3_mprintf(
+        "generate_series() requires SQLite 3.8.12 or later");
+    return SQLITE_ERROR;
+  }
+  rc = sqlite3_create_module(db, "generate_series", &seriesModule, 0);
+#endif
+  return rc;
+}
diff --git a/ext/misc/sha1.c b/ext/misc/sha1.c
new file mode 100644
index 0000000000000000000000000000000000000000..07d7970609463096d7bc64b2d3b5e091314a6ba7
--- /dev/null
+++ b/ext/misc/sha1.c
@@ -0,0 +1,409 @@
+/*
+** 2017-01-27
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This SQLite extension implements functions that compute SHA1 hashes.
+** Two SQL functions are implemented:
+**
+**     sha1(X)
+**     sha1_query(Y)
+**
+** The sha1(X) function computes the SHA1 hash of the input X, or NULL if
+** X is NULL.
+**
+** The sha1_query(Y) function evalutes all queries in the SQL statements of Y
+** and returns a hash of their results.
+*/
+#include "sqlite3ext.h"
+SQLITE_EXTENSION_INIT1
+#include <assert.h>
+#include <string.h>
+#include <stdarg.h>
+
+/******************************************************************************
+** The Hash Engine
+*/
+/* Context for the SHA1 hash */
+typedef struct SHA1Context SHA1Context;
+struct SHA1Context {
+  unsigned int state[5];
+  unsigned int count[2];
+  unsigned char buffer[64];
+};
+
+#define SHA_ROT(x,l,r) ((x) << (l) | (x) >> (r))
+#define rol(x,k) SHA_ROT(x,k,32-(k))
+#define ror(x,k) SHA_ROT(x,32-(k),k)
+
+#define blk0le(i) (block[i] = (ror(block[i],8)&0xFF00FF00) \
+    |(rol(block[i],8)&0x00FF00FF))
+#define blk0be(i) block[i]
+#define blk(i) (block[i&15] = rol(block[(i+13)&15]^block[(i+8)&15] \
+    ^block[(i+2)&15]^block[i&15],1))
+
+/*
+ * (R0+R1), R2, R3, R4 are the different operations (rounds) used in SHA1
+ *
+ * Rl0() for little-endian and Rb0() for big-endian.  Endianness is
+ * determined at run-time.
+ */
+#define Rl0(v,w,x,y,z,i) \
+    z+=((w&(x^y))^y)+blk0le(i)+0x5A827999+rol(v,5);w=ror(w,2);
+#define Rb0(v,w,x,y,z,i) \
+    z+=((w&(x^y))^y)+blk0be(i)+0x5A827999+rol(v,5);w=ror(w,2);
+#define R1(v,w,x,y,z,i) \
+    z+=((w&(x^y))^y)+blk(i)+0x5A827999+rol(v,5);w=ror(w,2);
+#define R2(v,w,x,y,z,i) \
+    z+=(w^x^y)+blk(i)+0x6ED9EBA1+rol(v,5);w=ror(w,2);
+#define R3(v,w,x,y,z,i) \
+    z+=(((w|x)&y)|(w&x))+blk(i)+0x8F1BBCDC+rol(v,5);w=ror(w,2);
+#define R4(v,w,x,y,z,i) \
+    z+=(w^x^y)+blk(i)+0xCA62C1D6+rol(v,5);w=ror(w,2);
+
+/*
+ * Hash a single 512-bit block. This is the core of the algorithm.
+ */
+static void SHA1Transform(unsigned int state[5], const unsigned char buffer[64]){
+  unsigned int qq[5]; /* a, b, c, d, e; */
+  static int one = 1;
+  unsigned int block[16];
+  memcpy(block, buffer, 64);
+  memcpy(qq,state,5*sizeof(unsigned int));
+
+#define a qq[0]
+#define b qq[1]
+#define c qq[2]
+#define d qq[3]
+#define e qq[4]
+
+  /* Copy p->state[] to working vars */
+  /*
+  a = state[0];
+  b = state[1];
+  c = state[2];
+  d = state[3];
+  e = state[4];
+  */
+
+  /* 4 rounds of 20 operations each. Loop unrolled. */
+  if( 1 == *(unsigned char*)&one ){
+    Rl0(a,b,c,d,e, 0); Rl0(e,a,b,c,d, 1); Rl0(d,e,a,b,c, 2); Rl0(c,d,e,a,b, 3);
+    Rl0(b,c,d,e,a, 4); Rl0(a,b,c,d,e, 5); Rl0(e,a,b,c,d, 6); Rl0(d,e,a,b,c, 7);
+    Rl0(c,d,e,a,b, 8); Rl0(b,c,d,e,a, 9); Rl0(a,b,c,d,e,10); Rl0(e,a,b,c,d,11);
+    Rl0(d,e,a,b,c,12); Rl0(c,d,e,a,b,13); Rl0(b,c,d,e,a,14); Rl0(a,b,c,d,e,15);
+  }else{
+    Rb0(a,b,c,d,e, 0); Rb0(e,a,b,c,d, 1); Rb0(d,e,a,b,c, 2); Rb0(c,d,e,a,b, 3);
+    Rb0(b,c,d,e,a, 4); Rb0(a,b,c,d,e, 5); Rb0(e,a,b,c,d, 6); Rb0(d,e,a,b,c, 7);
+    Rb0(c,d,e,a,b, 8); Rb0(b,c,d,e,a, 9); Rb0(a,b,c,d,e,10); Rb0(e,a,b,c,d,11);
+    Rb0(d,e,a,b,c,12); Rb0(c,d,e,a,b,13); Rb0(b,c,d,e,a,14); Rb0(a,b,c,d,e,15);
+  }
+  R1(e,a,b,c,d,16); R1(d,e,a,b,c,17); R1(c,d,e,a,b,18); R1(b,c,d,e,a,19);
+  R2(a,b,c,d,e,20); R2(e,a,b,c,d,21); R2(d,e,a,b,c,22); R2(c,d,e,a,b,23);
+  R2(b,c,d,e,a,24); R2(a,b,c,d,e,25); R2(e,a,b,c,d,26); R2(d,e,a,b,c,27);
+  R2(c,d,e,a,b,28); R2(b,c,d,e,a,29); R2(a,b,c,d,e,30); R2(e,a,b,c,d,31);
+  R2(d,e,a,b,c,32); R2(c,d,e,a,b,33); R2(b,c,d,e,a,34); R2(a,b,c,d,e,35);
+  R2(e,a,b,c,d,36); R2(d,e,a,b,c,37); R2(c,d,e,a,b,38); R2(b,c,d,e,a,39);
+  R3(a,b,c,d,e,40); R3(e,a,b,c,d,41); R3(d,e,a,b,c,42); R3(c,d,e,a,b,43);
+  R3(b,c,d,e,a,44); R3(a,b,c,d,e,45); R3(e,a,b,c,d,46); R3(d,e,a,b,c,47);
+  R3(c,d,e,a,b,48); R3(b,c,d,e,a,49); R3(a,b,c,d,e,50); R3(e,a,b,c,d,51);
+  R3(d,e,a,b,c,52); R3(c,d,e,a,b,53); R3(b,c,d,e,a,54); R3(a,b,c,d,e,55);
+  R3(e,a,b,c,d,56); R3(d,e,a,b,c,57); R3(c,d,e,a,b,58); R3(b,c,d,e,a,59);
+  R4(a,b,c,d,e,60); R4(e,a,b,c,d,61); R4(d,e,a,b,c,62); R4(c,d,e,a,b,63);
+  R4(b,c,d,e,a,64); R4(a,b,c,d,e,65); R4(e,a,b,c,d,66); R4(d,e,a,b,c,67);
+  R4(c,d,e,a,b,68); R4(b,c,d,e,a,69); R4(a,b,c,d,e,70); R4(e,a,b,c,d,71);
+  R4(d,e,a,b,c,72); R4(c,d,e,a,b,73); R4(b,c,d,e,a,74); R4(a,b,c,d,e,75);
+  R4(e,a,b,c,d,76); R4(d,e,a,b,c,77); R4(c,d,e,a,b,78); R4(b,c,d,e,a,79);
+
+  /* Add the working vars back into context.state[] */
+  state[0] += a;
+  state[1] += b;
+  state[2] += c;
+  state[3] += d;
+  state[4] += e;
+
+#undef a
+#undef b
+#undef c
+#undef d
+#undef e
+}
+
+
+/* Initialize a SHA1 context */
+static void hash_init(SHA1Context *p){
+  /* SHA1 initialization constants */
+  p->state[0] = 0x67452301;
+  p->state[1] = 0xEFCDAB89;
+  p->state[2] = 0x98BADCFE;
+  p->state[3] = 0x10325476;
+  p->state[4] = 0xC3D2E1F0;
+  p->count[0] = p->count[1] = 0;
+}
+
+/* Add new content to the SHA1 hash */
+static void hash_step(
+  SHA1Context *p,                 /* Add content to this context */
+  const unsigned char *data,      /* Data to be added */
+  unsigned int len                /* Number of bytes in data */
+){
+  unsigned int i, j;
+
+  j = p->count[0];
+  if( (p->count[0] += len << 3) < j ){
+    p->count[1] += (len>>29)+1;
+  }
+  j = (j >> 3) & 63;
+  if( (j + len) > 63 ){
+    (void)memcpy(&p->buffer[j], data, (i = 64-j));
+    SHA1Transform(p->state, p->buffer);
+    for(; i + 63 < len; i += 64){
+      SHA1Transform(p->state, &data[i]);
+    }
+    j = 0;
+  }else{
+    i = 0;
+  }
+  (void)memcpy(&p->buffer[j], &data[i], len - i);
+}
+
+/* Compute a string using sqlite3_vsnprintf() and hash it */
+static void hash_step_vformat(
+  SHA1Context *p,                 /* Add content to this context */
+  const char *zFormat,
+  ...
+){
+  va_list ap;
+  int n;
+  char zBuf[50];
+  va_start(ap, zFormat);
+  sqlite3_vsnprintf(sizeof(zBuf),zBuf,zFormat,ap);
+  va_end(ap);
+  n = (int)strlen(zBuf);
+  hash_step(p, (unsigned char*)zBuf, n);
+}
+
+
+/* Add padding and compute the message digest.  Render the
+** message digest as lower-case hexadecimal and put it into
+** zOut[].  zOut[] must be at least 41 bytes long. */
+static void hash_finish(
+  SHA1Context *p,           /* The SHA1 context to finish and render */
+  char *zOut,               /* Store hex or binary hash here */
+  int bAsBinary             /* 1 for binary hash, 0 for hex hash */
+){
+  unsigned int i;
+  unsigned char finalcount[8];
+  unsigned char digest[20];
+  static const char zEncode[] = "0123456789abcdef";
+
+  for (i = 0; i < 8; i++){
+    finalcount[i] = (unsigned char)((p->count[(i >= 4 ? 0 : 1)]
+       >> ((3-(i & 3)) * 8) ) & 255); /* Endian independent */
+  }
+  hash_step(p, (const unsigned char *)"\200", 1);
+  while ((p->count[0] & 504) != 448){
+    hash_step(p, (const unsigned char *)"\0", 1);
+  }
+  hash_step(p, finalcount, 8);  /* Should cause a SHA1Transform() */
+  for (i = 0; i < 20; i++){
+    digest[i] = (unsigned char)((p->state[i>>2] >> ((3-(i & 3)) * 8) ) & 255);
+  }
+  if( bAsBinary ){
+    memcpy(zOut, digest, 20);
+  }else{
+    for(i=0; i<20; i++){
+      zOut[i*2] = zEncode[(digest[i]>>4)&0xf];
+      zOut[i*2+1] = zEncode[digest[i] & 0xf];
+    }
+    zOut[i*2]= 0;
+  }
+}
+/* End of the hashing logic
+*****************************************************************************/
+
+/*
+** Implementation of the sha1(X) function.
+**
+** Return a lower-case hexadecimal rendering of the SHA1 hash of the
+** argument X.  If X is a BLOB, it is hashed as is.  For all other
+** types of input, X is converted into a UTF-8 string and the string
+** is hash without the trailing 0x00 terminator.  The hash of a NULL
+** value is NULL.
+*/
+static void sha1Func(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  SHA1Context cx;
+  int eType = sqlite3_value_type(argv[0]);
+  int nByte = sqlite3_value_bytes(argv[0]);
+  char zOut[44];
+
+  assert( argc==1 );
+  if( eType==SQLITE_NULL ) return;
+  hash_init(&cx);
+  if( eType==SQLITE_BLOB ){
+    hash_step(&cx, sqlite3_value_blob(argv[0]), nByte);
+  }else{
+    hash_step(&cx, sqlite3_value_text(argv[0]), nByte);
+  }
+  if( sqlite3_user_data(context)!=0 ){
+    hash_finish(&cx, zOut, 1);
+    sqlite3_result_blob(context, zOut, 20, SQLITE_TRANSIENT);
+  }else{
+    hash_finish(&cx, zOut, 0);
+    sqlite3_result_blob(context, zOut, 40, SQLITE_TRANSIENT);
+  }
+}
+
+/*
+** Implementation of the sha1_query(SQL) function.
+**
+** This function compiles and runs the SQL statement(s) given in the
+** argument. The results are hashed using SHA1 and that hash is returned.
+**
+** The original SQL text is included as part of the hash.
+**
+** The hash is not just a concatenation of the outputs.  Each query
+** is delimited and each row and value within the query is delimited,
+** with all values being marked with their datatypes.
+*/
+static void sha1QueryFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  sqlite3 *db = sqlite3_context_db_handle(context);
+  const char *zSql = (const char*)sqlite3_value_text(argv[0]);
+  sqlite3_stmt *pStmt = 0;
+  int nCol;                   /* Number of columns in the result set */
+  int i;                      /* Loop counter */
+  int rc;
+  int n;
+  const char *z;
+  SHA1Context cx;
+  char zOut[44];
+
+  assert( argc==1 );
+  if( zSql==0 ) return;
+  hash_init(&cx);
+  while( zSql[0] ){
+    rc = sqlite3_prepare_v2(db, zSql, -1, &pStmt, &zSql);
+    if( rc ){
+      char *zMsg = sqlite3_mprintf("error SQL statement [%s]: %s",
+                                   zSql, sqlite3_errmsg(db));
+      sqlite3_finalize(pStmt);
+      sqlite3_result_error(context, zMsg, -1);
+      sqlite3_free(zMsg);
+      return;
+    }
+    if( !sqlite3_stmt_readonly(pStmt) ){
+      char *zMsg = sqlite3_mprintf("non-query: [%s]", sqlite3_sql(pStmt));
+      sqlite3_finalize(pStmt);
+      sqlite3_result_error(context, zMsg, -1);
+      sqlite3_free(zMsg);
+      return;
+    }
+    nCol = sqlite3_column_count(pStmt);
+    z = sqlite3_sql(pStmt);
+    n = (int)strlen(z);
+    hash_step_vformat(&cx,"S%d:",n);
+    hash_step(&cx,(unsigned char*)z,n);
+
+    /* Compute a hash over the result of the query */
+    while( SQLITE_ROW==sqlite3_step(pStmt) ){
+      hash_step(&cx,(const unsigned char*)"R",1);
+      for(i=0; i<nCol; i++){
+        switch( sqlite3_column_type(pStmt,i) ){
+          case SQLITE_NULL: {
+            hash_step(&cx, (const unsigned char*)"N",1);
+            break;
+          }
+          case SQLITE_INTEGER: {
+            sqlite3_uint64 u;
+            int j;
+            unsigned char x[9];
+            sqlite3_int64 v = sqlite3_column_int64(pStmt,i);
+            memcpy(&u, &v, 8);
+            for(j=8; j>=1; j--){
+              x[j] = u & 0xff;
+              u >>= 8;
+            }
+            x[0] = 'I';
+            hash_step(&cx, x, 9);
+            break;
+          }
+          case SQLITE_FLOAT: {
+            sqlite3_uint64 u;
+            int j;
+            unsigned char x[9];
+            double r = sqlite3_column_double(pStmt,i);
+            memcpy(&u, &r, 8);
+            for(j=8; j>=1; j--){
+              x[j] = u & 0xff;
+              u >>= 8;
+            }
+            x[0] = 'F';
+            hash_step(&cx,x,9);
+            break;
+          }
+          case SQLITE_TEXT: {
+            int n2 = sqlite3_column_bytes(pStmt, i);
+            const unsigned char *z2 = sqlite3_column_text(pStmt, i);
+            hash_step_vformat(&cx,"T%d:",n2);
+            hash_step(&cx, z2, n2);
+            break;
+          }
+          case SQLITE_BLOB: {
+            int n2 = sqlite3_column_bytes(pStmt, i);
+            const unsigned char *z2 = sqlite3_column_blob(pStmt, i);
+            hash_step_vformat(&cx,"B%d:",n2);
+            hash_step(&cx, z2, n2);
+            break;
+          }
+        }
+      }
+    }
+    sqlite3_finalize(pStmt);
+  }
+  hash_finish(&cx, zOut, 0);
+  sqlite3_result_text(context, zOut, 40, SQLITE_TRANSIENT);
+}
+
+
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_sha_init(
+  sqlite3 *db,
+  char **pzErrMsg,
+  const sqlite3_api_routines *pApi
+){
+  int rc = SQLITE_OK;
+  static int one = 1;
+  SQLITE_EXTENSION_INIT2(pApi);
+  (void)pzErrMsg;  /* Unused parameter */
+  rc = sqlite3_create_function(db, "sha1", 1, 
+                       SQLITE_UTF8 | SQLITE_INNOCUOUS | SQLITE_DETERMINISTIC,
+                                0, sha1Func, 0, 0);
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_function(db, "sha1b", 1, 
+                       SQLITE_UTF8 | SQLITE_INNOCUOUS | SQLITE_DETERMINISTIC,
+                          (void*)&one, sha1Func, 0, 0);
+  }
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_function(db, "sha1_query", 1, 
+                                 SQLITE_UTF8|SQLITE_DIRECTONLY, 0,
+                                 sha1QueryFunc, 0, 0);
+  }
+  return rc;
+}
diff --git a/ext/misc/shathree.c b/ext/misc/shathree.c
new file mode 100644
index 0000000000000000000000000000000000000000..fc05a3b73aacac9e2f099083ba3417ab91a25973
--- /dev/null
+++ b/ext/misc/shathree.c
@@ -0,0 +1,854 @@
+/*
+** 2017-03-08
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This SQLite extension implements functions that compute SHA3 hashes
+** in the way described by the (U.S.) NIST FIPS 202 SHA-3 Standard.
+** Three SQL functions are implemented:
+**
+**     sha3(X,SIZE)
+**     sha3_agg(Y,SIZE)
+**     sha3_query(Z,SIZE)
+**
+** The sha3(X) function computes the SHA3 hash of the input X, or NULL if
+** X is NULL.  If inputs X is text, the UTF-8 rendering of that text is
+** used to compute the hash.  If X is a BLOB, then the binary data of the
+** blob is used to compute the hash.  If X is an integer or real number,
+** then that number if converted into UTF-8 text and the hash is computed
+** over the text.
+**
+** The sha3_agg(Y) function computes the SHA3 hash of all Y inputs.  Since
+** order is important for the hash, it is recommended that the Y expression
+** by followed by an ORDER BY clause to guarantee that the inputs occur
+** in the desired order.
+**
+** The sha3_query(Y) function evaluates all queries in the SQL statements of Y
+** and returns a hash of their results.
+**
+** The SIZE argument is optional.  If omitted, the SHA3-256 hash algorithm
+** is used.  If SIZE is included it must be one of the integers 224, 256,
+** 384, or 512, to determine SHA3 hash variant that is computed.
+**
+** Because the sha3_agg() and sha3_query() functions compute a hash over
+** multiple values, the values are encode to use include type information.
+**
+** In sha3_agg(), the sequence of bytes that gets hashed for each input
+** Y depends on the datatype of Y:
+**
+**    typeof(Y)='null'         A single "N" is hashed.  (One byte)
+**
+**    typeof(Y)='integer'      The data hash is the character "I" followed
+**                             by an 8-byte big-endian binary of the
+**                             64-bit signed integer.  (Nine bytes total.)
+**
+**    typeof(Y)='real'         The character "F" followed by an 8-byte
+**                             big-ending binary of the double.  (Nine
+**                             bytes total.)
+**
+**    typeof(Y)='text'         The hash is over prefix "Tnnn:" followed
+**                             by the UTF8 encoding of the text.  The "nnn"
+**                             in the prefix is the minimum-length decimal
+**                             representation of the octet_length of the text.
+**                             Notice the ":" at the end of the prefix, which
+**                             is needed to separate the prefix from the
+**                             content in cases where the content starts
+**                             with a digit.
+**
+**    typeof(Y)='blob'         The hash is taken over prefix "Bnnn:" followed
+**                             by the binary content of the blob.  The "nnn"
+**                             in the prefix is the mimimum-length decimal
+**                             representation of the byte-length of the blob.
+**
+** According to the rules above, all of the following SELECT statements
+** should return TRUE:
+**
+**    SELECT sha3(1) = sha3('1');
+**
+**    SELECT sha3('hello') = sha3(x'68656c6c6f');
+**
+**    WITH a(x) AS (VALUES('xyzzy'))
+**      SELECT sha3_agg(x) = sha3('T5:xyzzy')            FROM a;
+**
+**    WITH a(x) AS (VALUES(x'010203'))
+**      SELECT sha3_agg(x) = sha3(x'42333a010203')       FROM a;
+**
+**    WITH a(x) AS (VALUES(0x123456))
+**      SELECT sha3_agg(x) = sha3(x'490000000000123456') FROM a;
+**
+**    WITH a(x) AS (VALUES(100.015625))
+**      SELECT sha3_agg(x) = sha3(x'464059010000000000') FROM a;
+**
+**    WITH a(x) AS (VALUES(NULL))
+**      SELECT sha3_agg(x) = sha3('N') FROM a;
+**
+**
+** In sha3_query(), individual column values are encoded as with
+** sha3_agg(), but with the addition that a single "R" character is
+** inserted at the start of each row.
+**
+** Note that sha3_agg() hashes rows for which Y is NULL.  Add a FILTER
+** clause if NULL rows should be excluded:
+**
+**    SELECT sha3_agg(x ORDER BY rowid) FILTER(WHERE x NOT NULL) FROM t1;
+*/
+#include "sqlite3ext.h"
+SQLITE_EXTENSION_INIT1
+#include <assert.h>
+#include <string.h>
+#include <stdarg.h>
+
+#ifndef SQLITE_AMALGAMATION
+typedef sqlite3_uint64 u64;
+#endif /* SQLITE_AMALGAMATION */
+
+/******************************************************************************
+** The Hash Engine
+*/
+/*
+** Macros to determine whether the machine is big or little endian,
+** and whether or not that determination is run-time or compile-time.
+**
+** For best performance, an attempt is made to guess at the byte-order
+** using C-preprocessor macros.  If that is unsuccessful, or if
+** -DSHA3_BYTEORDER=0 is set, then byte-order is determined
+** at run-time.
+*/
+#ifndef SHA3_BYTEORDER
+# if defined(i386)     || defined(__i386__)   || defined(_M_IX86) ||    \
+     defined(__x86_64) || defined(__x86_64__) || defined(_M_X64)  ||    \
+     defined(_M_AMD64) || defined(_M_ARM)     || defined(__x86)   ||    \
+     defined(__arm__)
+#   define SHA3_BYTEORDER    1234
+# elif defined(sparc)    || defined(__ppc__)
+#   define SHA3_BYTEORDER    4321
+# else
+#   define SHA3_BYTEORDER 0
+# endif
+#endif
+
+
+/*
+** State structure for a SHA3 hash in progress
+*/
+typedef struct SHA3Context SHA3Context;
+struct SHA3Context {
+  union {
+    u64 s[25];                /* Keccak state. 5x5 lines of 64 bits each */
+    unsigned char x[1600];    /* ... or 1600 bytes */
+  } u;
+  unsigned nRate;        /* Bytes of input accepted per Keccak iteration */
+  unsigned nLoaded;      /* Input bytes loaded into u.x[] so far this cycle */
+  unsigned ixMask;       /* Insert next input into u.x[nLoaded^ixMask]. */
+  unsigned iSize;        /* 224, 256, 358, or 512 */
+};
+
+/*
+** A single step of the Keccak mixing function for a 1600-bit state
+*/
+static void KeccakF1600Step(SHA3Context *p){
+  int i;
+  u64 b0, b1, b2, b3, b4;
+  u64 c0, c1, c2, c3, c4;
+  u64 d0, d1, d2, d3, d4;
+  static const u64 RC[] = {
+    0x0000000000000001ULL,  0x0000000000008082ULL,
+    0x800000000000808aULL,  0x8000000080008000ULL,
+    0x000000000000808bULL,  0x0000000080000001ULL,
+    0x8000000080008081ULL,  0x8000000000008009ULL,
+    0x000000000000008aULL,  0x0000000000000088ULL,
+    0x0000000080008009ULL,  0x000000008000000aULL,
+    0x000000008000808bULL,  0x800000000000008bULL,
+    0x8000000000008089ULL,  0x8000000000008003ULL,
+    0x8000000000008002ULL,  0x8000000000000080ULL,
+    0x000000000000800aULL,  0x800000008000000aULL,
+    0x8000000080008081ULL,  0x8000000000008080ULL,
+    0x0000000080000001ULL,  0x8000000080008008ULL
+  };
+# define a00 (p->u.s[0])
+# define a01 (p->u.s[1])
+# define a02 (p->u.s[2])
+# define a03 (p->u.s[3])
+# define a04 (p->u.s[4])
+# define a10 (p->u.s[5])
+# define a11 (p->u.s[6])
+# define a12 (p->u.s[7])
+# define a13 (p->u.s[8])
+# define a14 (p->u.s[9])
+# define a20 (p->u.s[10])
+# define a21 (p->u.s[11])
+# define a22 (p->u.s[12])
+# define a23 (p->u.s[13])
+# define a24 (p->u.s[14])
+# define a30 (p->u.s[15])
+# define a31 (p->u.s[16])
+# define a32 (p->u.s[17])
+# define a33 (p->u.s[18])
+# define a34 (p->u.s[19])
+# define a40 (p->u.s[20])
+# define a41 (p->u.s[21])
+# define a42 (p->u.s[22])
+# define a43 (p->u.s[23])
+# define a44 (p->u.s[24])
+# define ROL64(a,x) ((a<<x)|(a>>(64-x)))
+
+  for(i=0; i<24; i+=4){
+    c0 = a00^a10^a20^a30^a40;
+    c1 = a01^a11^a21^a31^a41;
+    c2 = a02^a12^a22^a32^a42;
+    c3 = a03^a13^a23^a33^a43;
+    c4 = a04^a14^a24^a34^a44;
+    d0 = c4^ROL64(c1, 1);
+    d1 = c0^ROL64(c2, 1);
+    d2 = c1^ROL64(c3, 1);
+    d3 = c2^ROL64(c4, 1);
+    d4 = c3^ROL64(c0, 1);
+
+    b0 = (a00^d0);
+    b1 = ROL64((a11^d1), 44);
+    b2 = ROL64((a22^d2), 43);
+    b3 = ROL64((a33^d3), 21);
+    b4 = ROL64((a44^d4), 14);
+    a00 =   b0 ^((~b1)&  b2 );
+    a00 ^= RC[i];
+    a11 =   b1 ^((~b2)&  b3 );
+    a22 =   b2 ^((~b3)&  b4 );
+    a33 =   b3 ^((~b4)&  b0 );
+    a44 =   b4 ^((~b0)&  b1 );
+
+    b2 = ROL64((a20^d0), 3);
+    b3 = ROL64((a31^d1), 45);
+    b4 = ROL64((a42^d2), 61);
+    b0 = ROL64((a03^d3), 28);
+    b1 = ROL64((a14^d4), 20);
+    a20 =   b0 ^((~b1)&  b2 );
+    a31 =   b1 ^((~b2)&  b3 );
+    a42 =   b2 ^((~b3)&  b4 );
+    a03 =   b3 ^((~b4)&  b0 );
+    a14 =   b4 ^((~b0)&  b1 );
+
+    b4 = ROL64((a40^d0), 18);
+    b0 = ROL64((a01^d1), 1);
+    b1 = ROL64((a12^d2), 6);
+    b2 = ROL64((a23^d3), 25);
+    b3 = ROL64((a34^d4), 8);
+    a40 =   b0 ^((~b1)&  b2 );
+    a01 =   b1 ^((~b2)&  b3 );
+    a12 =   b2 ^((~b3)&  b4 );
+    a23 =   b3 ^((~b4)&  b0 );
+    a34 =   b4 ^((~b0)&  b1 );
+
+    b1 = ROL64((a10^d0), 36);
+    b2 = ROL64((a21^d1), 10);
+    b3 = ROL64((a32^d2), 15);
+    b4 = ROL64((a43^d3), 56);
+    b0 = ROL64((a04^d4), 27);
+    a10 =   b0 ^((~b1)&  b2 );
+    a21 =   b1 ^((~b2)&  b3 );
+    a32 =   b2 ^((~b3)&  b4 );
+    a43 =   b3 ^((~b4)&  b0 );
+    a04 =   b4 ^((~b0)&  b1 );
+
+    b3 = ROL64((a30^d0), 41);
+    b4 = ROL64((a41^d1), 2);
+    b0 = ROL64((a02^d2), 62);
+    b1 = ROL64((a13^d3), 55);
+    b2 = ROL64((a24^d4), 39);
+    a30 =   b0 ^((~b1)&  b2 );
+    a41 =   b1 ^((~b2)&  b3 );
+    a02 =   b2 ^((~b3)&  b4 );
+    a13 =   b3 ^((~b4)&  b0 );
+    a24 =   b4 ^((~b0)&  b1 );
+
+    c0 = a00^a20^a40^a10^a30;
+    c1 = a11^a31^a01^a21^a41;
+    c2 = a22^a42^a12^a32^a02;
+    c3 = a33^a03^a23^a43^a13;
+    c4 = a44^a14^a34^a04^a24;
+    d0 = c4^ROL64(c1, 1);
+    d1 = c0^ROL64(c2, 1);
+    d2 = c1^ROL64(c3, 1);
+    d3 = c2^ROL64(c4, 1);
+    d4 = c3^ROL64(c0, 1);
+
+    b0 = (a00^d0);
+    b1 = ROL64((a31^d1), 44);
+    b2 = ROL64((a12^d2), 43);
+    b3 = ROL64((a43^d3), 21);
+    b4 = ROL64((a24^d4), 14);
+    a00 =   b0 ^((~b1)&  b2 );
+    a00 ^= RC[i+1];
+    a31 =   b1 ^((~b2)&  b3 );
+    a12 =   b2 ^((~b3)&  b4 );
+    a43 =   b3 ^((~b4)&  b0 );
+    a24 =   b4 ^((~b0)&  b1 );
+
+    b2 = ROL64((a40^d0), 3);
+    b3 = ROL64((a21^d1), 45);
+    b4 = ROL64((a02^d2), 61);
+    b0 = ROL64((a33^d3), 28);
+    b1 = ROL64((a14^d4), 20);
+    a40 =   b0 ^((~b1)&  b2 );
+    a21 =   b1 ^((~b2)&  b3 );
+    a02 =   b2 ^((~b3)&  b4 );
+    a33 =   b3 ^((~b4)&  b0 );
+    a14 =   b4 ^((~b0)&  b1 );
+
+    b4 = ROL64((a30^d0), 18);
+    b0 = ROL64((a11^d1), 1);
+    b1 = ROL64((a42^d2), 6);
+    b2 = ROL64((a23^d3), 25);
+    b3 = ROL64((a04^d4), 8);
+    a30 =   b0 ^((~b1)&  b2 );
+    a11 =   b1 ^((~b2)&  b3 );
+    a42 =   b2 ^((~b3)&  b4 );
+    a23 =   b3 ^((~b4)&  b0 );
+    a04 =   b4 ^((~b0)&  b1 );
+
+    b1 = ROL64((a20^d0), 36);
+    b2 = ROL64((a01^d1), 10);
+    b3 = ROL64((a32^d2), 15);
+    b4 = ROL64((a13^d3), 56);
+    b0 = ROL64((a44^d4), 27);
+    a20 =   b0 ^((~b1)&  b2 );
+    a01 =   b1 ^((~b2)&  b3 );
+    a32 =   b2 ^((~b3)&  b4 );
+    a13 =   b3 ^((~b4)&  b0 );
+    a44 =   b4 ^((~b0)&  b1 );
+
+    b3 = ROL64((a10^d0), 41);
+    b4 = ROL64((a41^d1), 2);
+    b0 = ROL64((a22^d2), 62);
+    b1 = ROL64((a03^d3), 55);
+    b2 = ROL64((a34^d4), 39);
+    a10 =   b0 ^((~b1)&  b2 );
+    a41 =   b1 ^((~b2)&  b3 );
+    a22 =   b2 ^((~b3)&  b4 );
+    a03 =   b3 ^((~b4)&  b0 );
+    a34 =   b4 ^((~b0)&  b1 );
+
+    c0 = a00^a40^a30^a20^a10;
+    c1 = a31^a21^a11^a01^a41;
+    c2 = a12^a02^a42^a32^a22;
+    c3 = a43^a33^a23^a13^a03;
+    c4 = a24^a14^a04^a44^a34;
+    d0 = c4^ROL64(c1, 1);
+    d1 = c0^ROL64(c2, 1);
+    d2 = c1^ROL64(c3, 1);
+    d3 = c2^ROL64(c4, 1);
+    d4 = c3^ROL64(c0, 1);
+
+    b0 = (a00^d0);
+    b1 = ROL64((a21^d1), 44);
+    b2 = ROL64((a42^d2), 43);
+    b3 = ROL64((a13^d3), 21);
+    b4 = ROL64((a34^d4), 14);
+    a00 =   b0 ^((~b1)&  b2 );
+    a00 ^= RC[i+2];
+    a21 =   b1 ^((~b2)&  b3 );
+    a42 =   b2 ^((~b3)&  b4 );
+    a13 =   b3 ^((~b4)&  b0 );
+    a34 =   b4 ^((~b0)&  b1 );
+
+    b2 = ROL64((a30^d0), 3);
+    b3 = ROL64((a01^d1), 45);
+    b4 = ROL64((a22^d2), 61);
+    b0 = ROL64((a43^d3), 28);
+    b1 = ROL64((a14^d4), 20);
+    a30 =   b0 ^((~b1)&  b2 );
+    a01 =   b1 ^((~b2)&  b3 );
+    a22 =   b2 ^((~b3)&  b4 );
+    a43 =   b3 ^((~b4)&  b0 );
+    a14 =   b4 ^((~b0)&  b1 );
+
+    b4 = ROL64((a10^d0), 18);
+    b0 = ROL64((a31^d1), 1);
+    b1 = ROL64((a02^d2), 6);
+    b2 = ROL64((a23^d3), 25);
+    b3 = ROL64((a44^d4), 8);
+    a10 =   b0 ^((~b1)&  b2 );
+    a31 =   b1 ^((~b2)&  b3 );
+    a02 =   b2 ^((~b3)&  b4 );
+    a23 =   b3 ^((~b4)&  b0 );
+    a44 =   b4 ^((~b0)&  b1 );
+
+    b1 = ROL64((a40^d0), 36);
+    b2 = ROL64((a11^d1), 10);
+    b3 = ROL64((a32^d2), 15);
+    b4 = ROL64((a03^d3), 56);
+    b0 = ROL64((a24^d4), 27);
+    a40 =   b0 ^((~b1)&  b2 );
+    a11 =   b1 ^((~b2)&  b3 );
+    a32 =   b2 ^((~b3)&  b4 );
+    a03 =   b3 ^((~b4)&  b0 );
+    a24 =   b4 ^((~b0)&  b1 );
+
+    b3 = ROL64((a20^d0), 41);
+    b4 = ROL64((a41^d1), 2);
+    b0 = ROL64((a12^d2), 62);
+    b1 = ROL64((a33^d3), 55);
+    b2 = ROL64((a04^d4), 39);
+    a20 =   b0 ^((~b1)&  b2 );
+    a41 =   b1 ^((~b2)&  b3 );
+    a12 =   b2 ^((~b3)&  b4 );
+    a33 =   b3 ^((~b4)&  b0 );
+    a04 =   b4 ^((~b0)&  b1 );
+
+    c0 = a00^a30^a10^a40^a20;
+    c1 = a21^a01^a31^a11^a41;
+    c2 = a42^a22^a02^a32^a12;
+    c3 = a13^a43^a23^a03^a33;
+    c4 = a34^a14^a44^a24^a04;
+    d0 = c4^ROL64(c1, 1);
+    d1 = c0^ROL64(c2, 1);
+    d2 = c1^ROL64(c3, 1);
+    d3 = c2^ROL64(c4, 1);
+    d4 = c3^ROL64(c0, 1);
+
+    b0 = (a00^d0);
+    b1 = ROL64((a01^d1), 44);
+    b2 = ROL64((a02^d2), 43);
+    b3 = ROL64((a03^d3), 21);
+    b4 = ROL64((a04^d4), 14);
+    a00 =   b0 ^((~b1)&  b2 );
+    a00 ^= RC[i+3];
+    a01 =   b1 ^((~b2)&  b3 );
+    a02 =   b2 ^((~b3)&  b4 );
+    a03 =   b3 ^((~b4)&  b0 );
+    a04 =   b4 ^((~b0)&  b1 );
+
+    b2 = ROL64((a10^d0), 3);
+    b3 = ROL64((a11^d1), 45);
+    b4 = ROL64((a12^d2), 61);
+    b0 = ROL64((a13^d3), 28);
+    b1 = ROL64((a14^d4), 20);
+    a10 =   b0 ^((~b1)&  b2 );
+    a11 =   b1 ^((~b2)&  b3 );
+    a12 =   b2 ^((~b3)&  b4 );
+    a13 =   b3 ^((~b4)&  b0 );
+    a14 =   b4 ^((~b0)&  b1 );
+
+    b4 = ROL64((a20^d0), 18);
+    b0 = ROL64((a21^d1), 1);
+    b1 = ROL64((a22^d2), 6);
+    b2 = ROL64((a23^d3), 25);
+    b3 = ROL64((a24^d4), 8);
+    a20 =   b0 ^((~b1)&  b2 );
+    a21 =   b1 ^((~b2)&  b3 );
+    a22 =   b2 ^((~b3)&  b4 );
+    a23 =   b3 ^((~b4)&  b0 );
+    a24 =   b4 ^((~b0)&  b1 );
+
+    b1 = ROL64((a30^d0), 36);
+    b2 = ROL64((a31^d1), 10);
+    b3 = ROL64((a32^d2), 15);
+    b4 = ROL64((a33^d3), 56);
+    b0 = ROL64((a34^d4), 27);
+    a30 =   b0 ^((~b1)&  b2 );
+    a31 =   b1 ^((~b2)&  b3 );
+    a32 =   b2 ^((~b3)&  b4 );
+    a33 =   b3 ^((~b4)&  b0 );
+    a34 =   b4 ^((~b0)&  b1 );
+
+    b3 = ROL64((a40^d0), 41);
+    b4 = ROL64((a41^d1), 2);
+    b0 = ROL64((a42^d2), 62);
+    b1 = ROL64((a43^d3), 55);
+    b2 = ROL64((a44^d4), 39);
+    a40 =   b0 ^((~b1)&  b2 );
+    a41 =   b1 ^((~b2)&  b3 );
+    a42 =   b2 ^((~b3)&  b4 );
+    a43 =   b3 ^((~b4)&  b0 );
+    a44 =   b4 ^((~b0)&  b1 );
+  }
+}
+
+/*
+** Initialize a new hash.  iSize determines the size of the hash
+** in bits and should be one of 224, 256, 384, or 512.  Or iSize
+** can be zero to use the default hash size of 256 bits.
+*/
+static void SHA3Init(SHA3Context *p, int iSize){
+  memset(p, 0, sizeof(*p));
+  p->iSize = iSize;
+  if( iSize>=128 && iSize<=512 ){
+    p->nRate = (1600 - ((iSize + 31)&~31)*2)/8;
+  }else{
+    p->nRate = (1600 - 2*256)/8;
+  }
+#if SHA3_BYTEORDER==1234
+  /* Known to be little-endian at compile-time. No-op */
+#elif SHA3_BYTEORDER==4321
+  p->ixMask = 7;  /* Big-endian */
+#else
+  {
+    static unsigned int one = 1;
+    if( 1==*(unsigned char*)&one ){
+      /* Little endian.  No byte swapping. */
+      p->ixMask = 0;
+    }else{
+      /* Big endian.  Byte swap. */
+      p->ixMask = 7;
+    }
+  }
+#endif
+}
+
+/*
+** Make consecutive calls to the SHA3Update function to add new content
+** to the hash
+*/
+static void SHA3Update(
+  SHA3Context *p,
+  const unsigned char *aData,
+  unsigned int nData
+){
+  unsigned int i = 0;
+  if( aData==0 ) return;
+#if SHA3_BYTEORDER==1234
+  if( (p->nLoaded % 8)==0 && ((aData - (const unsigned char*)0)&7)==0 ){
+    for(; i+7<nData; i+=8){
+      p->u.s[p->nLoaded/8] ^= *(u64*)&aData[i];
+      p->nLoaded += 8;
+      if( p->nLoaded>=p->nRate ){
+        KeccakF1600Step(p);
+        p->nLoaded = 0;
+      }
+    }
+  }
+#endif
+  for(; i<nData; i++){
+#if SHA3_BYTEORDER==1234
+    p->u.x[p->nLoaded] ^= aData[i];
+#elif SHA3_BYTEORDER==4321
+    p->u.x[p->nLoaded^0x07] ^= aData[i];
+#else
+    p->u.x[p->nLoaded^p->ixMask] ^= aData[i];
+#endif
+    p->nLoaded++;
+    if( p->nLoaded==p->nRate ){
+      KeccakF1600Step(p);
+      p->nLoaded = 0;
+    }
+  }
+}
+
+/*
+** After all content has been added, invoke SHA3Final() to compute
+** the final hash.  The function returns a pointer to the binary
+** hash value.
+*/
+static unsigned char *SHA3Final(SHA3Context *p){
+  unsigned int i;
+  if( p->nLoaded==p->nRate-1 ){
+    const unsigned char c1 = 0x86;
+    SHA3Update(p, &c1, 1);
+  }else{
+    const unsigned char c2 = 0x06;
+    const unsigned char c3 = 0x80;
+    SHA3Update(p, &c2, 1);
+    p->nLoaded = p->nRate - 1;
+    SHA3Update(p, &c3, 1);
+  }
+  for(i=0; i<p->nRate; i++){
+    p->u.x[i+p->nRate] = p->u.x[i^p->ixMask];
+  }
+  return &p->u.x[p->nRate];
+}
+/* End of the hashing logic
+*****************************************************************************/
+
+/*
+** Implementation of the sha3(X,SIZE) function.
+**
+** Return a BLOB which is the SIZE-bit SHA3 hash of X.  The default
+** size is 256.  If X is a BLOB, it is hashed as is.  
+** For all other non-NULL types of input, X is converted into a UTF-8 string
+** and the string is hashed without the trailing 0x00 terminator.  The hash
+** of a NULL value is NULL.
+*/
+static void sha3Func(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  SHA3Context cx;
+  int eType = sqlite3_value_type(argv[0]);
+  int nByte = sqlite3_value_bytes(argv[0]);
+  int iSize;
+  if( argc==1 ){
+    iSize = 256;
+  }else{
+    iSize = sqlite3_value_int(argv[1]);
+    if( iSize!=224 && iSize!=256 && iSize!=384 && iSize!=512 ){
+      sqlite3_result_error(context, "SHA3 size should be one of: 224 256 "
+                                    "384 512", -1);
+      return;
+    }
+  }
+  if( eType==SQLITE_NULL ) return;
+  SHA3Init(&cx, iSize);
+  if( eType==SQLITE_BLOB ){
+    SHA3Update(&cx, sqlite3_value_blob(argv[0]), nByte);
+  }else{
+    SHA3Update(&cx, sqlite3_value_text(argv[0]), nByte);
+  }
+  sqlite3_result_blob(context, SHA3Final(&cx), iSize/8, SQLITE_TRANSIENT);
+}
+
+/* Compute a string using sqlite3_vsnprintf() with a maximum length
+** of 50 bytes and add it to the hash.
+*/
+static void sha3_step_vformat(
+  SHA3Context *p,                 /* Add content to this context */
+  const char *zFormat,
+  ...
+){
+  va_list ap;
+  int n;
+  char zBuf[50];
+  va_start(ap, zFormat);
+  sqlite3_vsnprintf(sizeof(zBuf),zBuf,zFormat,ap);
+  va_end(ap);
+  n = (int)strlen(zBuf);
+  SHA3Update(p, (unsigned char*)zBuf, n);
+}
+
+/*
+** Update a SHA3Context using a single sqlite3_value.
+*/
+static void sha3UpdateFromValue(SHA3Context *p, sqlite3_value *pVal){
+  switch( sqlite3_value_type(pVal) ){
+    case SQLITE_NULL: {
+      SHA3Update(p, (const unsigned char*)"N",1);
+      break;
+    }
+    case SQLITE_INTEGER: {
+      sqlite3_uint64 u;
+      int j;
+      unsigned char x[9];
+      sqlite3_int64 v = sqlite3_value_int64(pVal);
+      memcpy(&u, &v, 8);
+      for(j=8; j>=1; j--){
+        x[j] = u & 0xff;
+        u >>= 8;
+      }
+      x[0] = 'I';
+      SHA3Update(p, x, 9);
+      break;
+    }
+    case SQLITE_FLOAT: {
+      sqlite3_uint64 u;
+      int j;
+      unsigned char x[9];
+      double r = sqlite3_value_double(pVal);
+      memcpy(&u, &r, 8);
+      for(j=8; j>=1; j--){
+        x[j] = u & 0xff;
+        u >>= 8;
+      }
+      x[0] = 'F';
+      SHA3Update(p,x,9);
+      break;
+    }
+    case SQLITE_TEXT: {
+      int n2 = sqlite3_value_bytes(pVal);
+      const unsigned char *z2 = sqlite3_value_text(pVal);
+      sha3_step_vformat(p,"T%d:",n2);
+      SHA3Update(p, z2, n2);
+      break;
+    }
+    case SQLITE_BLOB: {
+      int n2 = sqlite3_value_bytes(pVal);
+      const unsigned char *z2 = sqlite3_value_blob(pVal);
+      sha3_step_vformat(p,"B%d:",n2);
+      SHA3Update(p, z2, n2);
+      break;
+    }
+  }
+}
+
+/*
+** Implementation of the sha3_query(SQL,SIZE) function.
+**
+** This function compiles and runs the SQL statement(s) given in the
+** argument. The results are hashed using a SIZE-bit SHA3.  The default
+** size is 256.
+**
+** The format of the byte stream that is hashed is summarized as follows:
+**
+**       S<n>:<sql>
+**       R
+**       N
+**       I<int>
+**       F<ieee-float>
+**       B<size>:<bytes>
+**       T<size>:<text>
+**
+** <sql> is the original SQL text for each statement run and <n> is
+** the size of that text.  The SQL text is UTF-8.  A single R character
+** occurs before the start of each row.  N means a NULL value.
+** I mean an 8-byte little-endian integer <int>.  F is a floating point
+** number with an 8-byte little-endian IEEE floating point value <ieee-float>.
+** B means blobs of <size> bytes.  T means text rendered as <size>
+** bytes of UTF-8.  The <n> and <size> values are expressed as an ASCII
+** text integers.
+**
+** For each SQL statement in the X input, there is one S segment.  Each
+** S segment is followed by zero or more R segments, one for each row in the
+** result set.  After each R, there are one or more N, I, F, B, or T segments,
+** one for each column in the result set.  Segments are concatentated directly
+** with no delimiters of any kind.
+*/
+static void sha3QueryFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  sqlite3 *db = sqlite3_context_db_handle(context);
+  const char *zSql = (const char*)sqlite3_value_text(argv[0]);
+  sqlite3_stmt *pStmt = 0;
+  int nCol;                   /* Number of columns in the result set */
+  int i;                      /* Loop counter */
+  int rc;
+  int n;
+  const char *z;
+  SHA3Context cx;
+  int iSize;
+
+  if( argc==1 ){
+    iSize = 256;
+  }else{
+    iSize = sqlite3_value_int(argv[1]);
+    if( iSize!=224 && iSize!=256 && iSize!=384 && iSize!=512 ){
+      sqlite3_result_error(context, "SHA3 size should be one of: 224 256 "
+                                    "384 512", -1);
+      return;
+    }
+  }
+  if( zSql==0 ) return;
+  SHA3Init(&cx, iSize);
+  while( zSql[0] ){
+    rc = sqlite3_prepare_v2(db, zSql, -1, &pStmt, &zSql);
+    if( rc ){
+      char *zMsg = sqlite3_mprintf("error SQL statement [%s]: %s",
+                                   zSql, sqlite3_errmsg(db));
+      sqlite3_finalize(pStmt);
+      sqlite3_result_error(context, zMsg, -1);
+      sqlite3_free(zMsg);
+      return;
+    }
+    if( !sqlite3_stmt_readonly(pStmt) ){
+      char *zMsg = sqlite3_mprintf("non-query: [%s]", sqlite3_sql(pStmt));
+      sqlite3_finalize(pStmt);
+      sqlite3_result_error(context, zMsg, -1);
+      sqlite3_free(zMsg);
+      return;
+    }
+    nCol = sqlite3_column_count(pStmt);
+    z = sqlite3_sql(pStmt);
+    if( z ){
+      n = (int)strlen(z);
+      sha3_step_vformat(&cx,"S%d:",n);
+      SHA3Update(&cx,(unsigned char*)z,n);
+    }
+
+    /* Compute a hash over the result of the query */
+    while( SQLITE_ROW==sqlite3_step(pStmt) ){
+      SHA3Update(&cx,(const unsigned char*)"R",1);
+      for(i=0; i<nCol; i++){
+        sha3UpdateFromValue(&cx, sqlite3_column_value(pStmt,i));
+      }
+    }
+    sqlite3_finalize(pStmt);
+  }
+  sqlite3_result_blob(context, SHA3Final(&cx), iSize/8, SQLITE_TRANSIENT);
+}
+
+/*
+** xStep function for sha3_agg().
+*/
+static void sha3AggStep(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  SHA3Context *p;
+  p = (SHA3Context*)sqlite3_aggregate_context(context, sizeof(*p));
+  if( p==0 ) return;
+  if( p->nRate==0 ){
+    int sz = 256;
+    if( argc==2 ){
+      sz = sqlite3_value_int(argv[1]);
+      if( sz!=224 && sz!=384 && sz!=512 ){
+        sz = 256;
+      }
+    }
+    SHA3Init(p, sz);
+  }
+  sha3UpdateFromValue(p, argv[0]);
+}
+
+
+/*
+** xFinal function for sha3_agg().
+*/
+static void sha3AggFinal(sqlite3_context *context){
+  SHA3Context *p;
+  p = (SHA3Context*)sqlite3_aggregate_context(context, sizeof(*p));
+  if( p==0 ) return;
+  if( p->iSize ){
+    sqlite3_result_blob(context, SHA3Final(p), p->iSize/8, SQLITE_TRANSIENT);
+  }
+}
+
+
+
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_shathree_init(
+  sqlite3 *db,
+  char **pzErrMsg,
+  const sqlite3_api_routines *pApi
+){
+  int rc = SQLITE_OK;
+  SQLITE_EXTENSION_INIT2(pApi);
+  (void)pzErrMsg;  /* Unused parameter */
+  rc = sqlite3_create_function(db, "sha3", 1,
+                      SQLITE_UTF8 | SQLITE_INNOCUOUS | SQLITE_DETERMINISTIC,
+                      0, sha3Func, 0, 0);
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_function(db, "sha3", 2,
+                      SQLITE_UTF8 | SQLITE_INNOCUOUS | SQLITE_DETERMINISTIC,
+                      0, sha3Func, 0, 0);
+  }
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_function(db, "sha3_agg", 1,
+                      SQLITE_UTF8 | SQLITE_INNOCUOUS | SQLITE_DETERMINISTIC,
+                      0, 0, sha3AggStep, sha3AggFinal);
+  }
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_function(db, "sha3_agg", 2,
+                      SQLITE_UTF8 | SQLITE_INNOCUOUS | SQLITE_DETERMINISTIC,
+                      0, 0, sha3AggStep, sha3AggFinal);
+  }
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_function(db, "sha3_query", 1,
+                      SQLITE_UTF8 | SQLITE_DIRECTONLY,
+                      0, sha3QueryFunc, 0, 0);
+  }
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_function(db, "sha3_query", 2,
+                      SQLITE_UTF8 | SQLITE_DIRECTONLY,
+                      0, sha3QueryFunc, 0, 0);
+  }
+  return rc;
+}
diff --git a/ext/misc/showauth.c b/ext/misc/showauth.c
new file mode 100644
index 0000000000000000000000000000000000000000..87a9a6843c4dc1d291a8755900754e1a3fad2b8a
--- /dev/null
+++ b/ext/misc/showauth.c
@@ -0,0 +1,103 @@
+/*
+** 2014-09-21
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This SQLite extension adds a debug "authorizer" callback to the database
+** connection.  The callback merely writes the authorization request to
+** standard output and returns SQLITE_OK.
+**
+** This extension can be used (for example) in the command-line shell to
+** trace the operation of the authorizer.
+*/
+#include "sqlite3ext.h"
+SQLITE_EXTENSION_INIT1
+#include <stdio.h>
+
+/*
+** Display the authorization request
+*/
+static int authCallback(
+  void *pClientData,
+  int op,
+  const char *z1,
+  const char *z2,
+  const char *z3,
+  const char *z4
+){
+  const char *zOp;
+  char zOpSpace[50];
+  switch( op ){
+    case SQLITE_CREATE_INDEX:        zOp = "CREATE_INDEX";        break;
+    case SQLITE_CREATE_TABLE:        zOp = "CREATE_TABLE";        break;
+    case SQLITE_CREATE_TEMP_INDEX:   zOp = "CREATE_TEMP_INDEX";   break;
+    case SQLITE_CREATE_TEMP_TABLE:   zOp = "CREATE_TEMP_TABLE";   break;
+    case SQLITE_CREATE_TEMP_TRIGGER: zOp = "CREATE_TEMP_TRIGGER"; break;
+    case SQLITE_CREATE_TEMP_VIEW:    zOp = "CREATE_TEMP_VIEW";    break;
+    case SQLITE_CREATE_TRIGGER:      zOp = "CREATE_TRIGGER";      break;
+    case SQLITE_CREATE_VIEW:         zOp = "CREATE_VIEW";         break;
+    case SQLITE_DELETE:              zOp = "DELETE";              break;
+    case SQLITE_DROP_INDEX:          zOp = "DROP_INDEX";          break;
+    case SQLITE_DROP_TABLE:          zOp = "DROP_TABLE";          break;
+    case SQLITE_DROP_TEMP_INDEX:     zOp = "DROP_TEMP_INDEX";     break;
+    case SQLITE_DROP_TEMP_TABLE:     zOp = "DROP_TEMP_TABLE";     break;
+    case SQLITE_DROP_TEMP_TRIGGER:   zOp = "DROP_TEMP_TRIGGER";   break;
+    case SQLITE_DROP_TEMP_VIEW:      zOp = "DROP_TEMP_VIEW";      break;
+    case SQLITE_DROP_TRIGGER:        zOp = "DROP_TRIGGER";        break;
+    case SQLITE_DROP_VIEW:           zOp = "DROP_VIEW";           break;
+    case SQLITE_INSERT:              zOp = "INSERT";              break;
+    case SQLITE_PRAGMA:              zOp = "PRAGMA";              break;
+    case SQLITE_READ:                zOp = "READ";                break;
+    case SQLITE_SELECT:              zOp = "SELECT";              break;
+    case SQLITE_TRANSACTION:         zOp = "TRANSACTION";         break;
+    case SQLITE_UPDATE:              zOp = "UPDATE";              break;
+    case SQLITE_ATTACH:              zOp = "ATTACH";              break;
+    case SQLITE_DETACH:              zOp = "DETACH";              break;
+    case SQLITE_ALTER_TABLE:         zOp = "ALTER_TABLE";         break;
+    case SQLITE_REINDEX:             zOp = "REINDEX";             break;
+    case SQLITE_ANALYZE:             zOp = "ANALYZE";             break;
+    case SQLITE_CREATE_VTABLE:       zOp = "CREATE_VTABLE";       break;
+    case SQLITE_DROP_VTABLE:         zOp = "DROP_VTABLE";         break;
+    case SQLITE_FUNCTION:            zOp = "FUNCTION";            break;
+    case SQLITE_SAVEPOINT:           zOp = "SAVEPOINT";           break;
+    case SQLITE_COPY:                zOp = "COPY";                break;
+    case SQLITE_RECURSIVE:           zOp = "RECURSIVE";           break;
+
+
+    default: {
+      sqlite3_snprintf(sizeof(zOpSpace), zOpSpace, "%d", op);
+      zOp = zOpSpace;
+      break;
+    }
+  }
+  if( z1==0 ) z1 = "NULL";
+  if( z2==0 ) z2 = "NULL";
+  if( z3==0 ) z3 = "NULL";
+  if( z4==0 ) z4 = "NULL";
+  printf("AUTH: %s,%s,%s,%s,%s\n", zOp, z1, z2, z3, z4);
+  return SQLITE_OK;
+}
+
+
+
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_showauth_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  int rc = SQLITE_OK;
+  SQLITE_EXTENSION_INIT2(pApi);
+  (void)pzErrMsg;  /* Unused parameter */
+  rc = sqlite3_set_authorizer(db, authCallback, 0);
+  return rc;
+}
diff --git a/ext/misc/spellfix.c b/ext/misc/spellfix.c
new file mode 100644
index 0000000000000000000000000000000000000000..6debdf5dbdc9c5799620340fb1e00507776bf823
--- /dev/null
+++ b/ext/misc/spellfix.c
@@ -0,0 +1,3076 @@
+/*
+** 2012 April 10
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** This module implements the spellfix1 VIRTUAL TABLE that can be used
+** to search a large vocabulary for close matches.  See separate
+** documentation (http://www.sqlite.org/spellfix1.html) for details.
+*/
+#include "sqlite3ext.h"
+SQLITE_EXTENSION_INIT1
+
+#ifndef SQLITE_AMALGAMATION
+# if !defined(NDEBUG) && !defined(SQLITE_DEBUG)
+#  define NDEBUG 1
+# endif
+# if defined(NDEBUG) && defined(SQLITE_DEBUG)
+#  undef NDEBUG
+# endif
+# include <string.h>
+# include <stdio.h>
+# include <stdlib.h>
+# include <assert.h>
+# define ALWAYS(X)  1
+# define NEVER(X)   0
+  typedef unsigned char u8;
+  typedef unsigned short u16;
+#endif
+#include <ctype.h>
+
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+
+/*
+** Character classes for ASCII characters:
+**
+**   0   ''        Silent letters:   H W
+**   1   'A'       Any vowel:   A E I O U (Y)
+**   2   'B'       A bilabeal stop or fricative:  B F P V W
+**   3   'C'       Other fricatives or back stops:  C G J K Q S X Z
+**   4   'D'       Alveolar stops:  D T
+**   5   'H'       Letter H at the beginning of a word
+**   6   'L'       Glide:  L
+**   7   'R'       Semivowel:  R
+**   8   'M'       Nasals:  M N
+**   9   'Y'       Letter Y at the beginning of a word.
+**   10  '9'       Digits: 0 1 2 3 4 5 6 7 8 9
+**   11  ' '       White space
+**   12  '?'       Other.
+*/
+#define CCLASS_SILENT         0
+#define CCLASS_VOWEL          1
+#define CCLASS_B              2
+#define CCLASS_C              3
+#define CCLASS_D              4
+#define CCLASS_H              5
+#define CCLASS_L              6
+#define CCLASS_R              7
+#define CCLASS_M              8
+#define CCLASS_Y              9
+#define CCLASS_DIGIT         10
+#define CCLASS_SPACE         11
+#define CCLASS_OTHER         12
+
+/*
+** The following table gives the character class for non-initial ASCII
+** characters.
+*/
+static const unsigned char midClass[] = {
+ /*   */ CCLASS_OTHER,    /*   */ CCLASS_OTHER,   /*   */ CCLASS_OTHER,
+ /*   */ CCLASS_OTHER,    /*   */ CCLASS_OTHER,   /*   */ CCLASS_OTHER,
+ /*   */ CCLASS_OTHER,    /*   */ CCLASS_OTHER,   /*   */ CCLASS_OTHER,
+ /*   */ CCLASS_SPACE,    /*   */ CCLASS_OTHER,   /*   */ CCLASS_OTHER,
+ /*   */ CCLASS_SPACE,    /*   */ CCLASS_SPACE,   /*   */ CCLASS_OTHER,
+ /*   */ CCLASS_OTHER,    /*   */ CCLASS_OTHER,   /*   */ CCLASS_OTHER,
+ /*   */ CCLASS_OTHER,    /*   */ CCLASS_OTHER,   /*   */ CCLASS_OTHER,
+ /*   */ CCLASS_OTHER,    /*   */ CCLASS_OTHER,   /*   */ CCLASS_OTHER,
+ /*   */ CCLASS_OTHER,    /*   */ CCLASS_OTHER,   /*   */ CCLASS_OTHER,
+ /*   */ CCLASS_OTHER,    /*   */ CCLASS_OTHER,   /*   */ CCLASS_OTHER,
+ /*   */ CCLASS_OTHER,    /*   */ CCLASS_OTHER,   /*   */ CCLASS_SPACE,
+ /* ! */ CCLASS_OTHER,    /* " */ CCLASS_OTHER,   /* # */ CCLASS_OTHER,
+ /* $ */ CCLASS_OTHER,    /* % */ CCLASS_OTHER,   /* & */ CCLASS_OTHER,
+ /* ' */ CCLASS_SILENT,   /* ( */ CCLASS_OTHER,   /* ) */ CCLASS_OTHER,
+ /* * */ CCLASS_OTHER,    /* + */ CCLASS_OTHER,   /* , */ CCLASS_OTHER,
+ /* - */ CCLASS_OTHER,    /* . */ CCLASS_OTHER,   /* / */ CCLASS_OTHER,
+ /* 0 */ CCLASS_DIGIT,    /* 1 */ CCLASS_DIGIT,   /* 2 */ CCLASS_DIGIT,
+ /* 3 */ CCLASS_DIGIT,    /* 4 */ CCLASS_DIGIT,   /* 5 */ CCLASS_DIGIT,
+ /* 6 */ CCLASS_DIGIT,    /* 7 */ CCLASS_DIGIT,   /* 8 */ CCLASS_DIGIT,
+ /* 9 */ CCLASS_DIGIT,    /* : */ CCLASS_OTHER,   /* ; */ CCLASS_OTHER,
+ /* < */ CCLASS_OTHER,    /* = */ CCLASS_OTHER,   /* > */ CCLASS_OTHER,
+ /* ? */ CCLASS_OTHER,    /* @ */ CCLASS_OTHER,   /* A */ CCLASS_VOWEL,
+ /* B */ CCLASS_B,        /* C */ CCLASS_C,       /* D */ CCLASS_D,
+ /* E */ CCLASS_VOWEL,    /* F */ CCLASS_B,       /* G */ CCLASS_C,
+ /* H */ CCLASS_SILENT,   /* I */ CCLASS_VOWEL,   /* J */ CCLASS_C,
+ /* K */ CCLASS_C,        /* L */ CCLASS_L,       /* M */ CCLASS_M,
+ /* N */ CCLASS_M,        /* O */ CCLASS_VOWEL,   /* P */ CCLASS_B,
+ /* Q */ CCLASS_C,        /* R */ CCLASS_R,       /* S */ CCLASS_C,
+ /* T */ CCLASS_D,        /* U */ CCLASS_VOWEL,   /* V */ CCLASS_B,
+ /* W */ CCLASS_B,        /* X */ CCLASS_C,       /* Y */ CCLASS_VOWEL,
+ /* Z */ CCLASS_C,        /* [ */ CCLASS_OTHER,   /* \ */ CCLASS_OTHER,
+ /* ] */ CCLASS_OTHER,    /* ^ */ CCLASS_OTHER,   /* _ */ CCLASS_OTHER,
+ /* ` */ CCLASS_OTHER,    /* a */ CCLASS_VOWEL,   /* b */ CCLASS_B,
+ /* c */ CCLASS_C,        /* d */ CCLASS_D,       /* e */ CCLASS_VOWEL,
+ /* f */ CCLASS_B,        /* g */ CCLASS_C,       /* h */ CCLASS_SILENT,
+ /* i */ CCLASS_VOWEL,    /* j */ CCLASS_C,       /* k */ CCLASS_C,
+ /* l */ CCLASS_L,        /* m */ CCLASS_M,       /* n */ CCLASS_M,
+ /* o */ CCLASS_VOWEL,    /* p */ CCLASS_B,       /* q */ CCLASS_C,
+ /* r */ CCLASS_R,        /* s */ CCLASS_C,       /* t */ CCLASS_D,
+ /* u */ CCLASS_VOWEL,    /* v */ CCLASS_B,       /* w */ CCLASS_B,
+ /* x */ CCLASS_C,        /* y */ CCLASS_VOWEL,   /* z */ CCLASS_C,
+ /* { */ CCLASS_OTHER,    /* | */ CCLASS_OTHER,   /* } */ CCLASS_OTHER,
+ /* ~ */ CCLASS_OTHER,    /*   */ CCLASS_OTHER,   
+};
+/* 
+** This tables gives the character class for ASCII characters that form the
+** initial character of a word.  The only difference from midClass is with
+** the letters H, W, and Y.
+*/
+static const unsigned char initClass[] = {
+ /*   */ CCLASS_OTHER,    /*   */ CCLASS_OTHER,   /*   */ CCLASS_OTHER,
+ /*   */ CCLASS_OTHER,    /*   */ CCLASS_OTHER,   /*   */ CCLASS_OTHER,
+ /*   */ CCLASS_OTHER,    /*   */ CCLASS_OTHER,   /*   */ CCLASS_OTHER,
+ /*   */ CCLASS_SPACE,    /*   */ CCLASS_OTHER,   /*   */ CCLASS_OTHER,
+ /*   */ CCLASS_SPACE,    /*   */ CCLASS_SPACE,   /*   */ CCLASS_OTHER,
+ /*   */ CCLASS_OTHER,    /*   */ CCLASS_OTHER,   /*   */ CCLASS_OTHER,
+ /*   */ CCLASS_OTHER,    /*   */ CCLASS_OTHER,   /*   */ CCLASS_OTHER,
+ /*   */ CCLASS_OTHER,    /*   */ CCLASS_OTHER,   /*   */ CCLASS_OTHER,
+ /*   */ CCLASS_OTHER,    /*   */ CCLASS_OTHER,   /*   */ CCLASS_OTHER,
+ /*   */ CCLASS_OTHER,    /*   */ CCLASS_OTHER,   /*   */ CCLASS_OTHER,
+ /*   */ CCLASS_OTHER,    /*   */ CCLASS_OTHER,   /*   */ CCLASS_SPACE,
+ /* ! */ CCLASS_OTHER,    /* " */ CCLASS_OTHER,   /* # */ CCLASS_OTHER,
+ /* $ */ CCLASS_OTHER,    /* % */ CCLASS_OTHER,   /* & */ CCLASS_OTHER,
+ /* ' */ CCLASS_OTHER,    /* ( */ CCLASS_OTHER,   /* ) */ CCLASS_OTHER,
+ /* * */ CCLASS_OTHER,    /* + */ CCLASS_OTHER,   /* , */ CCLASS_OTHER,
+ /* - */ CCLASS_OTHER,    /* . */ CCLASS_OTHER,   /* / */ CCLASS_OTHER,
+ /* 0 */ CCLASS_DIGIT,    /* 1 */ CCLASS_DIGIT,   /* 2 */ CCLASS_DIGIT,
+ /* 3 */ CCLASS_DIGIT,    /* 4 */ CCLASS_DIGIT,   /* 5 */ CCLASS_DIGIT,
+ /* 6 */ CCLASS_DIGIT,    /* 7 */ CCLASS_DIGIT,   /* 8 */ CCLASS_DIGIT,
+ /* 9 */ CCLASS_DIGIT,    /* : */ CCLASS_OTHER,   /* ; */ CCLASS_OTHER,
+ /* < */ CCLASS_OTHER,    /* = */ CCLASS_OTHER,   /* > */ CCLASS_OTHER,
+ /* ? */ CCLASS_OTHER,    /* @ */ CCLASS_OTHER,   /* A */ CCLASS_VOWEL,
+ /* B */ CCLASS_B,        /* C */ CCLASS_C,       /* D */ CCLASS_D,
+ /* E */ CCLASS_VOWEL,    /* F */ CCLASS_B,       /* G */ CCLASS_C,
+ /* H */ CCLASS_SILENT,   /* I */ CCLASS_VOWEL,   /* J */ CCLASS_C,
+ /* K */ CCLASS_C,        /* L */ CCLASS_L,       /* M */ CCLASS_M,
+ /* N */ CCLASS_M,        /* O */ CCLASS_VOWEL,   /* P */ CCLASS_B,
+ /* Q */ CCLASS_C,        /* R */ CCLASS_R,       /* S */ CCLASS_C,
+ /* T */ CCLASS_D,        /* U */ CCLASS_VOWEL,   /* V */ CCLASS_B,
+ /* W */ CCLASS_B,        /* X */ CCLASS_C,       /* Y */ CCLASS_Y,
+ /* Z */ CCLASS_C,        /* [ */ CCLASS_OTHER,   /* \ */ CCLASS_OTHER,
+ /* ] */ CCLASS_OTHER,    /* ^ */ CCLASS_OTHER,   /* _ */ CCLASS_OTHER,
+ /* ` */ CCLASS_OTHER,    /* a */ CCLASS_VOWEL,   /* b */ CCLASS_B,
+ /* c */ CCLASS_C,        /* d */ CCLASS_D,       /* e */ CCLASS_VOWEL,
+ /* f */ CCLASS_B,        /* g */ CCLASS_C,       /* h */ CCLASS_SILENT,
+ /* i */ CCLASS_VOWEL,    /* j */ CCLASS_C,       /* k */ CCLASS_C,
+ /* l */ CCLASS_L,        /* m */ CCLASS_M,       /* n */ CCLASS_M,
+ /* o */ CCLASS_VOWEL,    /* p */ CCLASS_B,       /* q */ CCLASS_C,
+ /* r */ CCLASS_R,        /* s */ CCLASS_C,       /* t */ CCLASS_D,
+ /* u */ CCLASS_VOWEL,    /* v */ CCLASS_B,       /* w */ CCLASS_B,
+ /* x */ CCLASS_C,        /* y */ CCLASS_Y,       /* z */ CCLASS_C,
+ /* { */ CCLASS_OTHER,    /* | */ CCLASS_OTHER,   /* } */ CCLASS_OTHER,
+ /* ~ */ CCLASS_OTHER,    /*   */ CCLASS_OTHER,   
+};
+
+/*
+** Mapping from the character class number (0-13) to a symbol for each
+** character class.  Note that initClass[] can be used to map the class
+** symbol back into the class number.
+*/
+static const unsigned char className[] = ".ABCDHLRMY9 ?";
+
+/*
+** Generate a "phonetic hash" from a string of ASCII characters
+** in zIn[0..nIn-1].
+**
+**   * Map characters by character class as defined above.
+**   * Omit double-letters
+**   * Omit vowels beside R and L
+**   * Omit T when followed by CH
+**   * Omit W when followed by R
+**   * Omit D when followed by J or G
+**   * Omit K in KN or G in GN at the beginning of a word
+**
+** Space to hold the result is obtained from sqlite3_malloc()
+**
+** Return NULL if memory allocation fails.  
+*/
+static unsigned char *phoneticHash(const unsigned char *zIn, int nIn){
+  unsigned char *zOut = sqlite3_malloc64( nIn + 1 );
+  int i;
+  int nOut = 0;
+  char cPrev = 0x77;
+  char cPrevX = 0x77;
+  const unsigned char *aClass = initClass;
+
+  if( zOut==0 ) return 0;
+  if( nIn>2 ){
+    switch( zIn[0] ){
+      case 'g': 
+      case 'k': {
+        if( zIn[1]=='n' ){ zIn++; nIn--; }
+        break;
+      }
+    }
+  }
+  for(i=0; i<nIn; i++){
+    unsigned char c = zIn[i];
+    if( i+1<nIn ){
+      if( c=='w' && zIn[i+1]=='r' ) continue;
+      if( c=='d' && (zIn[i+1]=='j' || zIn[i+1]=='g') ) continue;
+      if( i+2<nIn ){
+        if( c=='t' && zIn[i+1]=='c' && zIn[i+2]=='h' ) continue;
+      }
+    }
+    c = aClass[c&0x7f];
+    if( c==CCLASS_SPACE ) continue;
+    if( c==CCLASS_OTHER && cPrev!=CCLASS_DIGIT ) continue;
+    aClass = midClass;
+    if( c==CCLASS_VOWEL && (cPrevX==CCLASS_R || cPrevX==CCLASS_L) ){
+       continue; /* No vowels beside L or R */ 
+    }
+    if( (c==CCLASS_R || c==CCLASS_L) && cPrevX==CCLASS_VOWEL ){
+       nOut--;   /* No vowels beside L or R */
+    }
+    cPrev = c;
+    if( c==CCLASS_SILENT ) continue;
+    cPrevX = c;
+    c = className[c];
+    assert( nOut>=0 );
+    if( nOut==0 || c!=zOut[nOut-1] ) zOut[nOut++] = c;
+  }
+  zOut[nOut] = 0;
+  return zOut;
+}
+
+/*
+** This is an SQL function wrapper around phoneticHash().  See
+** the description of phoneticHash() for additional information.
+*/
+static void phoneticHashSqlFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  const unsigned char *zIn;
+  unsigned char *zOut;
+
+  zIn = sqlite3_value_text(argv[0]);
+  if( zIn==0 ) return;
+  zOut = phoneticHash(zIn, sqlite3_value_bytes(argv[0]));
+  if( zOut==0 ){
+    sqlite3_result_error_nomem(context);
+  }else{
+    sqlite3_result_text(context, (char*)zOut, -1, sqlite3_free);
+  }
+}
+
+/*
+** Return the character class number for a character given its
+** context.
+*/
+static char characterClass(char cPrev, char c){
+  return cPrev==0 ? initClass[c&0x7f] : midClass[c&0x7f];
+}
+
+/*
+** Return the cost of inserting or deleting character c immediately
+** following character cPrev.  If cPrev==0, that means c is the first
+** character of the word.
+*/
+static int insertOrDeleteCost(char cPrev, char c, char cNext){
+  char classC = characterClass(cPrev, c);
+  char classCprev;
+
+  if( classC==CCLASS_SILENT ){
+    /* Insert or delete "silent" characters such as H or W */
+    return 1;
+  }
+  if( cPrev==c ){
+    /* Repeated characters, or miss a repeat */
+    return 10;
+  }
+  if( classC==CCLASS_VOWEL && (cPrev=='r' || cNext=='r') ){
+    return 20;  /* Insert a vowel before or after 'r' */
+  }
+  classCprev = characterClass(cPrev, cPrev);
+  if( classC==classCprev ){
+    if( classC==CCLASS_VOWEL ){
+      /* Remove or add a new vowel to a vowel cluster */
+      return 15;
+    }else{
+      /* Remove or add a consonant not in the same class */
+      return 50;
+    }
+  }
+
+  /* any other character insertion or deletion */
+  return 100;
+}
+
+/*
+** Divide the insertion cost by this factor when appending to the
+** end of the word.
+*/
+#define FINAL_INS_COST_DIV  4
+
+/*
+** Return the cost of substituting cTo in place of cFrom assuming
+** the previous character is cPrev.  If cPrev==0 then cTo is the first
+** character of the word.
+*/
+static int substituteCost(char cPrev, char cFrom, char cTo){
+  char classFrom, classTo;
+  if( cFrom==cTo ){
+    /* Exact match */
+    return 0;
+  }
+  if( cFrom==(cTo^0x20) && ((cTo>='A' && cTo<='Z') || (cTo>='a' && cTo<='z')) ){
+    /* differ only in case */
+    return 0;
+  }
+  classFrom = characterClass(cPrev, cFrom);
+  classTo = characterClass(cPrev, cTo);
+  if( classFrom==classTo ){
+    /* Same character class */
+    return 40;
+  }
+  if( classFrom>=CCLASS_B && classFrom<=CCLASS_Y
+      && classTo>=CCLASS_B && classTo<=CCLASS_Y ){
+    /* Convert from one consonant to another, but in a different class */
+    return 75;
+  }
+  /* Any other subsitution */
+  return 100;
+}
+
+/*
+** Given two strings zA and zB which are pure ASCII, return the cost
+** of transforming zA into zB.  If zA ends with '*' assume that it is
+** a prefix of zB and give only minimal penalty for extra characters
+** on the end of zB.
+**
+** Smaller numbers mean a closer match.
+**
+** Negative values indicate an error:
+**    -1  One of the inputs is NULL
+**    -2  Non-ASCII characters on input
+**    -3  Unable to allocate memory
+**
+** If pnMatch is not NULL, then *pnMatch is set to the number of bytes
+** of zB that matched the pattern in zA. If zA does not end with a '*',
+** then this value is always the number of bytes in zB (i.e. strlen(zB)).
+** If zA does end in a '*', then it is the number of bytes in the prefix
+** of zB that was deemed to match zA.
+*/
+static int editdist1(const char *zA, const char *zB, int *pnMatch){
+  unsigned int nA, nB;   /* Number of characters in zA[] and zB[] */
+  unsigned int xA, xB;   /* Loop counters for zA[] and zB[] */
+  char cA = 0, cB;       /* Current character of zA and zB */
+  char cAprev, cBprev;   /* Previous character of zA and zB */
+  char cAnext, cBnext;   /* Next character in zA and zB */
+  int d;                 /* North-west cost value */
+  int dc = 0;            /* North-west character value */
+  int res;               /* Final result */
+  int *m;                /* The cost matrix */
+  char *cx;              /* Corresponding character values */
+  int *toFree = 0;       /* Malloced space */
+  int nMatch = 0;
+  int mStack[60+15];     /* Stack space to use if not too much is needed */
+
+  /* Early out if either input is NULL */
+  if( zA==0 || zB==0 ) return -1;
+
+  /* Skip any common prefix */
+  while( zA[0] && zA[0]==zB[0] ){ dc = zA[0]; zA++; zB++; nMatch++; }
+  if( pnMatch ) *pnMatch = nMatch;
+  if( zA[0]==0 && zB[0]==0 ) return 0;
+
+#if 0
+  printf("A=\"%s\" B=\"%s\" dc=%c\n", zA, zB, dc?dc:' ');
+#endif
+
+  /* Verify input strings and measure their lengths */
+  for(nA=0; zA[nA]; nA++){
+    if( zA[nA]&0x80 ) return -2;
+  }
+  for(nB=0; zB[nB]; nB++){
+    if( zB[nB]&0x80 ) return -2;
+  }
+
+  /* Special processing if either string is empty */
+  if( nA==0 ){
+    cBprev = (char)dc;
+    for(xB=res=0; (cB = zB[xB])!=0; xB++){
+      res += insertOrDeleteCost(cBprev, cB, zB[xB+1])/FINAL_INS_COST_DIV;
+      cBprev = cB;
+    }
+    return res;
+  }
+  if( nB==0 ){
+    cAprev = (char)dc;
+    for(xA=res=0; (cA = zA[xA])!=0; xA++){
+      res += insertOrDeleteCost(cAprev, cA, zA[xA+1]);
+      cAprev = cA;
+    }
+    return res;
+  }
+
+  /* A is a prefix of B */
+  if( zA[0]=='*' && zA[1]==0 ) return 0;
+
+  /* Allocate and initialize the Wagner matrix */
+  if( nB<(sizeof(mStack)*4)/(sizeof(mStack[0])*5) ){
+    m = mStack;
+  }else{
+    m = toFree = sqlite3_malloc64( (nB+1)*5*sizeof(m[0])/4 );
+    if( m==0 ) return -3;
+  }
+  cx = (char*)&m[nB+1];
+
+  /* Compute the Wagner edit distance */
+  m[0] = 0;
+  cx[0] = (char)dc;
+  cBprev = (char)dc;
+  for(xB=1; xB<=nB; xB++){
+    cBnext = zB[xB];
+    cB = zB[xB-1];
+    cx[xB] = cB;
+    m[xB] = m[xB-1] + insertOrDeleteCost(cBprev, cB, cBnext);
+    cBprev = cB;
+  }
+  cAprev = (char)dc;
+  for(xA=1; xA<=nA; xA++){
+    int lastA = (xA==nA);
+    cA = zA[xA-1];
+    cAnext = zA[xA];
+    if( cA=='*' && lastA ) break;
+    d = m[0];
+    dc = cx[0];
+    m[0] = d + insertOrDeleteCost(cAprev, cA, cAnext);
+    cBprev = 0;
+    for(xB=1; xB<=nB; xB++){
+      int totalCost, insCost, delCost, subCost, ncx;
+      cB = zB[xB-1];
+      cBnext = zB[xB];
+
+      /* Cost to insert cB */
+      insCost = insertOrDeleteCost(cx[xB-1], cB, cBnext);
+      if( lastA ) insCost /= FINAL_INS_COST_DIV;
+
+      /* Cost to delete cA */
+      delCost = insertOrDeleteCost(cx[xB], cA, cBnext);
+
+      /* Cost to substitute cA->cB */
+      subCost = substituteCost(cx[xB-1], cA, cB);
+
+      /* Best cost */
+      totalCost = insCost + m[xB-1];
+      ncx = cB;
+      if( (delCost + m[xB])<totalCost ){
+        totalCost = delCost + m[xB];
+        ncx = cA;
+      }
+      if( (subCost + d)<totalCost ){
+        totalCost = subCost + d;
+      }
+
+#if 0
+      printf("%d,%d d=%4d u=%4d r=%4d dc=%c cA=%c cB=%c"
+             " ins=%4d del=%4d sub=%4d t=%4d ncx=%c\n",
+             xA, xB, d, m[xB], m[xB-1], dc?dc:' ', cA, cB,
+             insCost, delCost, subCost, totalCost, ncx?ncx:' ');
+#endif
+
+      /* Update the matrix */
+      d = m[xB];
+      dc = cx[xB];
+      m[xB] = totalCost;
+      cx[xB] = (char)ncx;
+      cBprev = cB;
+    }
+    cAprev = cA;
+  }
+
+  /* Free the wagner matrix and return the result */
+  if( cA=='*' ){
+    res = m[1];
+    for(xB=1; xB<=nB; xB++){
+      if( m[xB]<res ){
+        res = m[xB];
+        if( pnMatch ) *pnMatch = xB+nMatch;
+      }
+    }
+  }else{
+    res = m[nB];
+    /* In the current implementation, pnMatch is always NULL if zA does
+    ** not end in "*" */
+    assert( pnMatch==0 );
+  }
+  sqlite3_free(toFree);
+  return res;
+}
+
+/*
+** Function:    editdist(A,B)
+**
+** Return the cost of transforming string A into string B.  Both strings
+** must be pure ASCII text.  If A ends with '*' then it is assumed to be
+** a prefix of B and extra characters on the end of B have minimal additional
+** cost.
+*/
+static void editdistSqlFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  int res = editdist1(
+                    (const char*)sqlite3_value_text(argv[0]),
+                    (const char*)sqlite3_value_text(argv[1]),
+                    0);
+  if( res<0 ){
+    if( res==(-3) ){
+      sqlite3_result_error_nomem(context);
+    }else if( res==(-2) ){
+      sqlite3_result_error(context, "non-ASCII input to editdist()", -1);
+    }else{
+      sqlite3_result_error(context, "NULL input to editdist()", -1);
+    }
+  }else{ 
+    sqlite3_result_int(context, res);
+  }
+}
+
+/* End of the fixed-cost edit distance implementation
+******************************************************************************
+*****************************************************************************
+** Begin: Configurable cost unicode edit distance routines
+*/
+/* Forward declaration of structures */
+typedef struct EditDist3Cost EditDist3Cost;
+typedef struct EditDist3Config EditDist3Config;
+typedef struct EditDist3Point EditDist3Point;
+typedef struct EditDist3From EditDist3From;
+typedef struct EditDist3FromString EditDist3FromString;
+typedef struct EditDist3To EditDist3To;
+typedef struct EditDist3ToString EditDist3ToString;
+typedef struct EditDist3Lang EditDist3Lang;
+
+
+/*
+** An entry in the edit cost table
+*/
+struct EditDist3Cost {
+  EditDist3Cost *pNext;     /* Next cost element */
+  u8 nFrom;                 /* Number of bytes in aFrom */
+  u8 nTo;                   /* Number of bytes in aTo */
+  u16 iCost;                /* Cost of this transformation */
+  char a[4]    ;            /* FROM string followed by TO string */
+  /* Additional TO and FROM string bytes appended as necessary */
+};
+
+/*
+** Edit costs for a particular language ID 
+*/
+struct EditDist3Lang {
+  int iLang;             /* Language ID */
+  int iInsCost;          /* Default insertion cost */
+  int iDelCost;          /* Default deletion cost */
+  int iSubCost;          /* Default substitution cost */
+  EditDist3Cost *pCost;  /* Costs */
+};
+
+
+/*
+** The default EditDist3Lang object, with default costs.
+*/
+static const EditDist3Lang editDist3Lang = { 0, 100, 100, 150, 0 };
+
+/*
+** Complete configuration
+*/
+struct EditDist3Config {
+  int nLang;             /* Number of language IDs.  Size of a[] */
+  EditDist3Lang *a;      /* One for each distinct language ID */
+};
+
+/*
+** Extra information about each character in the FROM string.
+*/
+struct EditDist3From {
+  int nSubst;              /* Number of substitution cost entries */
+  int nDel;                /* Number of deletion cost entries */
+  int nByte;               /* Number of bytes in this character */
+  EditDist3Cost **apSubst; /* Array of substitution costs for this element */
+  EditDist3Cost **apDel;   /* Array of deletion cost entries */
+};
+
+/*
+** A precompiled FROM string.
+*
+** In the common case we expect the FROM string to be reused multiple times.
+** In other words, the common case will be to measure the edit distance
+** from a single origin string to multiple target strings.
+*/
+struct EditDist3FromString {
+  char *z;                 /* The complete text of the FROM string */
+  int n;                   /* Number of characters in the FROM string */
+  int isPrefix;            /* True if ends with '*' character */
+  EditDist3From *a;        /* Extra info about each char of the FROM string */
+};
+
+/*
+** Extra information about each character in the TO string.
+*/
+struct EditDist3To {
+  int nIns;                /* Number of insertion cost entries */
+  int nByte;               /* Number of bytes in this character */
+  EditDist3Cost **apIns;   /* Array of deletion cost entries */
+};
+
+/*
+** A precompiled FROM string
+*/
+struct EditDist3ToString {
+  char *z;                 /* The complete text of the TO string */
+  int n;                   /* Number of characters in the TO string */
+  EditDist3To *a;          /* Extra info about each char of the TO string */
+};
+
+/*
+** Clear or delete an instance of the object that records all edit-distance
+** weights.
+*/
+static void editDist3ConfigClear(EditDist3Config *p){
+  int i;
+  if( p==0 ) return;
+  for(i=0; i<p->nLang; i++){
+    EditDist3Cost *pCost, *pNext;
+    pCost = p->a[i].pCost;
+    while( pCost ){
+      pNext = pCost->pNext;
+      sqlite3_free(pCost);
+      pCost = pNext;
+    }
+  }
+  sqlite3_free(p->a);
+  memset(p, 0, sizeof(*p));
+}
+static void editDist3ConfigDelete(void *pIn){
+  EditDist3Config *p = (EditDist3Config*)pIn;
+  editDist3ConfigClear(p);
+  sqlite3_free(p);
+}
+
+/* Compare the FROM values of two EditDist3Cost objects, for sorting.
+** Return negative, zero, or positive if the A is less than, equal to,
+** or greater than B.
+*/
+static int editDist3CostCompare(EditDist3Cost *pA, EditDist3Cost *pB){
+  int n = pA->nFrom;
+  int rc;
+  if( n>pB->nFrom ) n = pB->nFrom;
+  rc = strncmp(pA->a, pB->a, n);
+  if( rc==0 ) rc = pA->nFrom - pB->nFrom;
+  return rc;
+}
+
+/*
+** Merge together two sorted lists of EditDist3Cost objects, in order
+** of increasing FROM.
+*/
+static EditDist3Cost *editDist3CostMerge(
+  EditDist3Cost *pA,
+  EditDist3Cost *pB
+){
+  EditDist3Cost *pHead = 0;
+  EditDist3Cost **ppTail = &pHead;
+  EditDist3Cost *p;
+  while( pA && pB ){
+    if( editDist3CostCompare(pA,pB)<=0 ){
+      p = pA;
+      pA = pA->pNext;
+    }else{
+      p = pB;
+      pB = pB->pNext;
+    }
+    *ppTail = p;
+    ppTail =  &p->pNext;
+  }
+  if( pA ){
+    *ppTail = pA;
+  }else{
+    *ppTail = pB;
+  }
+  return pHead;
+}
+
+/*
+** Sort a list of EditDist3Cost objects into order of increasing FROM
+*/
+static EditDist3Cost *editDist3CostSort(EditDist3Cost *pList){
+  EditDist3Cost *ap[60], *p;
+  int i;
+  int mx = 0;
+  ap[0] = 0;
+  ap[1] = 0;
+  while( pList ){
+    p = pList;
+    pList = p->pNext;
+    p->pNext = 0;
+    for(i=0; ap[i]; i++){
+      p = editDist3CostMerge(ap[i],p);
+      ap[i] = 0;
+    }
+    ap[i] = p;
+    if( i>mx ){
+      mx = i;
+      ap[i+1] = 0;
+    }
+  }
+  p = 0;
+  for(i=0; i<=mx; i++){
+    if( ap[i] ) p = editDist3CostMerge(p,ap[i]);
+  }
+  return p;
+}
+
+/*
+** Load all edit-distance weights from a table.
+*/
+static int editDist3ConfigLoad(
+  EditDist3Config *p,      /* The edit distance configuration to load */
+  sqlite3 *db,            /* Load from this database */
+  const char *zTable      /* Name of the table from which to load */
+){
+  sqlite3_stmt *pStmt;
+  int rc, rc2;
+  char *zSql;
+  int iLangPrev = -9999;
+  EditDist3Lang *pLang = 0;
+
+  zSql = sqlite3_mprintf("SELECT iLang, cFrom, cTo, iCost"
+                         " FROM \"%w\" WHERE iLang>=0 ORDER BY iLang", zTable);
+  if( zSql==0 ) return SQLITE_NOMEM;
+  rc = sqlite3_prepare(db, zSql, -1, &pStmt, 0);
+  sqlite3_free(zSql);
+  if( rc ) return rc;
+  editDist3ConfigClear(p);
+  while( sqlite3_step(pStmt)==SQLITE_ROW ){
+    int iLang = sqlite3_column_int(pStmt, 0);
+    const char *zFrom = (const char*)sqlite3_column_text(pStmt, 1);
+    int nFrom = zFrom ? sqlite3_column_bytes(pStmt, 1) : 0;
+    const char *zTo = (const char*)sqlite3_column_text(pStmt, 2);
+    int nTo = zTo ? sqlite3_column_bytes(pStmt, 2) : 0;
+    int iCost = sqlite3_column_int(pStmt, 3);
+
+    assert( zFrom!=0 || nFrom==0 );
+    assert( zTo!=0 || nTo==0 );
+    if( nFrom>100 || nTo>100 ) continue;
+    if( iCost<0 ) continue;
+    if( iCost>=10000 ) continue;  /* Costs above 10K are considered infinite */
+    if( pLang==0 || iLang!=iLangPrev ){
+      EditDist3Lang *pNew;
+      pNew = sqlite3_realloc64(p->a, (p->nLang+1)*sizeof(p->a[0]));
+      if( pNew==0 ){ rc = SQLITE_NOMEM; break; }
+      p->a = pNew;
+      pLang = &p->a[p->nLang];
+      p->nLang++;
+      pLang->iLang = iLang;
+      pLang->iInsCost = 100;
+      pLang->iDelCost = 100;
+      pLang->iSubCost = 150;
+      pLang->pCost = 0;
+      iLangPrev = iLang;
+    }
+    if( nFrom==1 && zFrom[0]=='?' && nTo==0 ){
+      pLang->iDelCost = iCost;
+    }else if( nFrom==0 && nTo==1 && zTo[0]=='?' ){
+      pLang->iInsCost = iCost;
+    }else if( nFrom==1 && nTo==1 && zFrom[0]=='?' && zTo[0]=='?' ){
+      pLang->iSubCost = iCost;
+    }else{
+      EditDist3Cost *pCost;
+      int nExtra = nFrom + nTo - 4;
+      if( nExtra<0 ) nExtra = 0;
+      pCost = sqlite3_malloc64( sizeof(*pCost) + nExtra );
+      if( pCost==0 ){ rc = SQLITE_NOMEM; break; }
+      pCost->nFrom = (u8)nFrom;
+      pCost->nTo = (u8)nTo;
+      pCost->iCost = (u16)iCost;
+      memcpy(pCost->a, zFrom, nFrom);
+      memcpy(pCost->a + nFrom, zTo, nTo);
+      pCost->pNext = pLang->pCost;
+      pLang->pCost = pCost; 
+    }
+  }
+  rc2 = sqlite3_finalize(pStmt);
+  if( rc==SQLITE_OK ) rc = rc2;
+  if( rc==SQLITE_OK ){
+    int iLang;
+    for(iLang=0; iLang<p->nLang; iLang++){
+      p->a[iLang].pCost = editDist3CostSort(p->a[iLang].pCost);
+    }
+  }
+  return rc;
+}
+
+/*
+** Return the length (in bytes) of a utf-8 character.  Or return a maximum
+** of N.
+*/
+static int utf8Len(unsigned char c, int N){
+  int len = 1;
+  if( c>0x7f ){
+    if( (c&0xe0)==0xc0 ){
+      len = 2;
+    }else if( (c&0xf0)==0xe0 ){
+      len = 3;
+    }else{
+      len = 4;
+    }
+  }
+  if( len>N ) len = N;
+  return len;
+}
+
+/*
+** Return TRUE (non-zero) if the To side of the given cost matches
+** the given string.
+*/
+static int matchTo(EditDist3Cost *p, const char *z, int n){
+  assert( n>0 );
+  if( p->a[p->nFrom]!=z[0] ) return 0;
+  if( p->nTo>n ) return 0;
+  if( strncmp(p->a+p->nFrom, z, p->nTo)!=0 ) return 0;
+  return 1;
+}
+
+/*
+** Return TRUE (non-zero) if the From side of the given cost matches
+** the given string.
+*/
+static int matchFrom(EditDist3Cost *p, const char *z, int n){
+  assert( p->nFrom<=n );
+  if( p->nFrom ){
+    if( p->a[0]!=z[0] ) return 0;
+    if( strncmp(p->a, z, p->nFrom)!=0 ) return 0;
+  }
+  return 1;
+}
+
+/*
+** Return TRUE (non-zero) of the next FROM character and the next TO
+** character are the same.
+*/
+static int matchFromTo(
+  EditDist3FromString *pStr,  /* Left hand string */
+  int n1,                     /* Index of comparison character on the left */
+  const char *z2,             /* Right-handl comparison character */
+  int n2                      /* Bytes remaining in z2[] */
+){
+  int b1 = pStr->a[n1].nByte;
+  if( b1>n2 ) return 0;
+  assert( b1>0 );
+  if( pStr->z[n1]!=z2[0] ) return 0;
+  if( strncmp(pStr->z+n1, z2, b1)!=0 ) return 0;
+  return 1;
+}
+
+/*
+** Delete an EditDist3FromString objecct
+*/
+static void editDist3FromStringDelete(EditDist3FromString *p){
+  int i;
+  if( p ){
+    for(i=0; i<p->n; i++){
+      sqlite3_free(p->a[i].apDel);
+      sqlite3_free(p->a[i].apSubst);
+    }
+    sqlite3_free(p);
+  }
+}
+
+/*
+** Create a EditDist3FromString object.
+*/
+static EditDist3FromString *editDist3FromStringNew(
+  const EditDist3Lang *pLang,
+  const char *z,
+  int n
+){
+  EditDist3FromString *pStr;
+  EditDist3Cost *p;
+  int i;
+
+  if( z==0 ) return 0;
+  if( n<0 ) n = (int)strlen(z);
+  pStr = sqlite3_malloc64( sizeof(*pStr) + sizeof(pStr->a[0])*n + n + 1 );
+  if( pStr==0 ) return 0;
+  pStr->a = (EditDist3From*)&pStr[1];
+  memset(pStr->a, 0, sizeof(pStr->a[0])*n);
+  pStr->n = n;
+  pStr->z = (char*)&pStr->a[n];
+  memcpy(pStr->z, z, n+1);
+  if( n && z[n-1]=='*' ){
+    pStr->isPrefix = 1;
+    n--;
+    pStr->n--;
+    pStr->z[n] = 0;
+  }else{
+    pStr->isPrefix = 0;
+  }
+
+  for(i=0; i<n; i++){
+    EditDist3From *pFrom = &pStr->a[i];
+    memset(pFrom, 0, sizeof(*pFrom));
+    pFrom->nByte = utf8Len((unsigned char)z[i], n-i);
+    for(p=pLang->pCost; p; p=p->pNext){
+      EditDist3Cost **apNew;
+      if( i+p->nFrom>n ) continue;
+      if( matchFrom(p, z+i, n-i)==0 ) continue;
+      if( p->nTo==0 ){
+        apNew = sqlite3_realloc64(pFrom->apDel,
+                                sizeof(*apNew)*(pFrom->nDel+1));
+        if( apNew==0 ) break;
+        pFrom->apDel = apNew;
+        apNew[pFrom->nDel++] = p;
+      }else{
+        apNew = sqlite3_realloc64(pFrom->apSubst,
+                                sizeof(*apNew)*(pFrom->nSubst+1));
+        if( apNew==0 ) break;
+        pFrom->apSubst = apNew;
+        apNew[pFrom->nSubst++] = p;
+      }
+    }
+    if( p ){
+      editDist3FromStringDelete(pStr);
+      pStr = 0;
+      break;
+    }
+  }
+  return pStr;
+}
+
+/*
+** Update entry m[i] such that it is the minimum of its current value
+** and m[j]+iCost.
+*/
+static void updateCost(
+  unsigned int *m,
+  int i,
+  int j,
+  int iCost
+){
+  unsigned int b;
+  assert( iCost>=0 );
+  assert( iCost<10000 );
+  b = m[j] + iCost;
+  if( b<m[i] ) m[i] = b;
+}
+
+/*
+** How much stack space (int bytes) to use for Wagner matrix in 
+** editDist3Core().  If more space than this is required, the entire
+** matrix is taken from the heap.  To reduce the load on the memory
+** allocator, make this value as large as practical for the
+** architecture in use.
+*/
+#ifndef SQLITE_SPELLFIX_STACKALLOC_SZ
+# define SQLITE_SPELLFIX_STACKALLOC_SZ  (1024)
+#endif
+
+/* Compute the edit distance between two strings.
+**
+** If an error occurs, return a negative number which is the error code.
+**
+** If pnMatch is not NULL, then *pnMatch is set to the number of characters
+** (not bytes) in z2 that matched the search pattern in *pFrom. If pFrom does
+** not contain the pattern for a prefix-search, then this is always the number
+** of characters in z2. If pFrom does contain a prefix search pattern, then
+** it is the number of characters in the prefix of z2 that was deemed to 
+** match pFrom.
+*/
+static int editDist3Core(
+  EditDist3FromString *pFrom,  /* The FROM string */
+  const char *z2,              /* The TO string */
+  int n2,                      /* Length of the TO string */
+  const EditDist3Lang *pLang,  /* Edit weights for a particular language ID */
+  int *pnMatch                 /* OUT: Characters in matched prefix */
+){
+  int k, n;
+  int i1, b1;
+  int i2, b2;
+  EditDist3FromString f = *pFrom;
+  EditDist3To *a2;
+  unsigned int *m;
+  unsigned int *pToFree;
+  int szRow;
+  EditDist3Cost *p;
+  int res;
+  sqlite3_uint64 nByte;
+  unsigned int stackSpace[SQLITE_SPELLFIX_STACKALLOC_SZ/sizeof(unsigned int)];
+
+  /* allocate the Wagner matrix and the aTo[] array for the TO string */
+  n = (f.n+1)*(n2+1);
+  n = (n+1)&~1;
+  nByte = n*sizeof(m[0]) + sizeof(a2[0])*n2;
+  if( nByte<=sizeof(stackSpace) ){
+    m = stackSpace;
+    pToFree = 0;
+  }else{
+    m = pToFree = sqlite3_malloc64( nByte );
+    if( m==0 ) return -1;            /* Out of memory */
+  }
+  a2 = (EditDist3To*)&m[n];
+  memset(a2, 0, sizeof(a2[0])*n2);
+
+  /* Fill in the a1[] matrix for all characters of the TO string */
+  for(i2=0; i2<n2; i2++){
+    a2[i2].nByte = utf8Len((unsigned char)z2[i2], n2-i2);
+    for(p=pLang->pCost; p; p=p->pNext){
+      EditDist3Cost **apNew;
+      if( p->nFrom>0 ) break;
+      if( i2+p->nTo>n2 ) continue;
+      if( p->a[0]>z2[i2] ) break;
+      if( matchTo(p, z2+i2, n2-i2)==0 ) continue;
+      a2[i2].nIns++;
+      apNew = sqlite3_realloc64(a2[i2].apIns, sizeof(*apNew)*a2[i2].nIns);
+      if( apNew==0 ){
+        res = -1;  /* Out of memory */
+        goto editDist3Abort;
+      }
+      a2[i2].apIns = apNew;
+      a2[i2].apIns[a2[i2].nIns-1] = p;
+    }
+  }
+
+  /* Prepare to compute the minimum edit distance */
+  szRow = f.n+1;
+  memset(m, 0x01, (n2+1)*szRow*sizeof(m[0]));
+  m[0] = 0;
+
+  /* First fill in the top-row of the matrix with FROM deletion costs */
+  for(i1=0; i1<f.n; i1 += b1){
+    b1 = f.a[i1].nByte;
+    updateCost(m, i1+b1, i1, pLang->iDelCost);
+    for(k=0; k<f.a[i1].nDel; k++){
+      p = f.a[i1].apDel[k];
+      updateCost(m, i1+p->nFrom, i1, p->iCost);
+    }
+  }
+
+  /* Fill in all subsequent rows, top-to-bottom, left-to-right */
+  for(i2=0; i2<n2; i2 += b2){
+    int rx;      /* Starting index for current row */
+    int rxp;     /* Starting index for previous row */
+    b2 = a2[i2].nByte;
+    rx = szRow*(i2+b2);
+    rxp = szRow*i2;
+    updateCost(m, rx, rxp, pLang->iInsCost);
+    for(k=0; k<a2[i2].nIns; k++){
+      p = a2[i2].apIns[k];
+      updateCost(m, szRow*(i2+p->nTo), rxp, p->iCost);
+    }
+    for(i1=0; i1<f.n; i1+=b1){
+      int cx;    /* Index of current cell */
+      int cxp;   /* Index of cell immediately to the left */
+      int cxd;   /* Index of cell to the left and one row above */
+      int cxu;   /* Index of cell immediately above */
+      b1 = f.a[i1].nByte;
+      cxp = rx + i1;
+      cx = cxp + b1;
+      cxd = rxp + i1;
+      cxu = cxd + b1;
+      updateCost(m, cx, cxp, pLang->iDelCost);
+      for(k=0; k<f.a[i1].nDel; k++){
+        p = f.a[i1].apDel[k];
+        updateCost(m, cxp+p->nFrom, cxp, p->iCost);
+      }
+      updateCost(m, cx, cxu, pLang->iInsCost);
+      if( matchFromTo(&f, i1, z2+i2, n2-i2) ){
+        updateCost(m, cx, cxd, 0);
+      }
+      updateCost(m, cx, cxd, pLang->iSubCost);
+      for(k=0; k<f.a[i1].nSubst; k++){
+        p = f.a[i1].apSubst[k];
+        if( matchTo(p, z2+i2, n2-i2) ){
+          updateCost(m, cxd+p->nFrom+szRow*p->nTo, cxd, p->iCost);
+        }
+      }
+    }
+  }
+
+#if 0  /* Enable for debugging */
+  printf("         ^");
+  for(i1=0; i1<f.n; i1++) printf(" %c-%2x", f.z[i1], f.z[i1]&0xff);
+  printf("\n   ^:");
+  for(i1=0; i1<szRow; i1++){
+    int v = m[i1];
+    if( v>9999 ) printf(" ****");
+    else         printf(" %4d", v);
+  }
+  printf("\n");
+  for(i2=0; i2<n2; i2++){
+    printf("%c-%02x:", z2[i2], z2[i2]&0xff);
+    for(i1=0; i1<szRow; i1++){
+      int v = m[(i2+1)*szRow+i1];
+      if( v>9999 ) printf(" ****");
+      else         printf(" %4d", v);
+    }
+    printf("\n");
+  }
+#endif
+
+  /* Free memory allocations and return the result */
+  res = (int)m[szRow*(n2+1)-1];
+  n = n2;
+  if( f.isPrefix ){
+    for(i2=1; i2<=n2; i2++){
+      int b = m[szRow*i2-1];
+      if( b<=res ){ 
+        res = b;
+        n = i2 - 1;
+      }
+    }
+  }
+  if( pnMatch ){
+    int nExtra = 0;
+    for(k=0; k<n; k++){
+      if( (z2[k] & 0xc0)==0x80 ) nExtra++;
+    }
+    *pnMatch = n - nExtra;
+  }
+
+editDist3Abort:
+  for(i2=0; i2<n2; i2++) sqlite3_free(a2[i2].apIns);
+  sqlite3_free(pToFree);
+  return res;
+}
+
+/*
+** Get an appropriate EditDist3Lang object.
+*/
+static const EditDist3Lang *editDist3FindLang(
+  EditDist3Config *pConfig,
+  int iLang
+){
+  int i;
+  for(i=0; i<pConfig->nLang; i++){
+    if( pConfig->a[i].iLang==iLang ) return &pConfig->a[i];
+  }
+  return &editDist3Lang;
+}
+
+/*
+** Function:    editdist3(A,B,iLang)
+**              editdist3(tablename)
+**
+** Return the cost of transforming string A into string B using edit
+** weights for iLang.
+**
+** The second form loads edit weights into memory from a table.
+*/
+static void editDist3SqlFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  EditDist3Config *pConfig = (EditDist3Config*)sqlite3_user_data(context);
+  sqlite3 *db = sqlite3_context_db_handle(context);
+  int rc;
+  if( argc==1 ){
+    const char *zTable = (const char*)sqlite3_value_text(argv[0]);
+    rc = editDist3ConfigLoad(pConfig, db, zTable);
+    if( rc ) sqlite3_result_error_code(context, rc);
+  }else{
+    const char *zA = (const char*)sqlite3_value_text(argv[0]);
+    const char *zB = (const char*)sqlite3_value_text(argv[1]);
+    int nA = sqlite3_value_bytes(argv[0]);
+    int nB = sqlite3_value_bytes(argv[1]);
+    int iLang = argc==3 ? sqlite3_value_int(argv[2]) : 0;
+    const EditDist3Lang *pLang = editDist3FindLang(pConfig, iLang);
+    EditDist3FromString *pFrom;
+    int dist;
+
+    pFrom = editDist3FromStringNew(pLang, zA, nA);
+    if( pFrom==0 ){
+      sqlite3_result_error_nomem(context);
+      return;
+    }
+    dist = editDist3Core(pFrom, zB, nB, pLang, 0);
+    editDist3FromStringDelete(pFrom);
+    if( dist==(-1) ){
+      sqlite3_result_error_nomem(context);
+    }else{
+      sqlite3_result_int(context, dist);
+    }
+  } 
+}
+
+/*
+** Register the editDist3 function with SQLite
+*/
+static int editDist3Install(sqlite3 *db){
+  int rc;
+  EditDist3Config *pConfig = sqlite3_malloc64( sizeof(*pConfig) );
+  if( pConfig==0 ) return SQLITE_NOMEM;
+  memset(pConfig, 0, sizeof(*pConfig));
+  rc = sqlite3_create_function_v2(db, "editdist3",
+              2, SQLITE_UTF8|SQLITE_DETERMINISTIC, pConfig,
+              editDist3SqlFunc, 0, 0, 0);
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_function_v2(db, "editdist3",
+                3, SQLITE_UTF8|SQLITE_DETERMINISTIC, pConfig,
+                editDist3SqlFunc, 0, 0, 0);
+  }
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_function_v2(db, "editdist3",
+                1, SQLITE_UTF8|SQLITE_DETERMINISTIC, pConfig,
+                editDist3SqlFunc, 0, 0, editDist3ConfigDelete);
+  }else{
+    sqlite3_free(pConfig);
+  }
+  return rc;
+}
+/* End configurable cost unicode edit distance routines
+******************************************************************************
+******************************************************************************
+** Begin transliterate unicode-to-ascii implementation
+*/
+
+#if !SQLITE_AMALGAMATION
+/*
+** This lookup table is used to help decode the first byte of
+** a multi-byte UTF8 character.
+*/
+static const unsigned char sqlite3Utf8Trans1[] = {
+  0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+  0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
+  0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
+  0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
+  0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+  0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
+  0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+  0x00, 0x01, 0x02, 0x03, 0x00, 0x01, 0x00, 0x00,
+};
+#endif
+
+/*
+** Return the value of the first UTF-8 character in the string.
+*/
+static int utf8Read(const unsigned char *z, int n, int *pSize){
+  int c, i;
+
+  /* All callers to this routine (in the current implementation)
+  ** always have n>0. */
+  if( NEVER(n==0) ){
+    c = i = 0;
+  }else{
+    c = z[0];
+    i = 1;
+    if( c>=0xc0 ){
+      c = sqlite3Utf8Trans1[c-0xc0];
+      while( i<n && (z[i] & 0xc0)==0x80 ){
+        c = (c<<6) + (0x3f & z[i++]);
+      }
+    }
+  }
+  *pSize = i;
+  return c;
+}
+
+/*
+** Return the number of characters in the utf-8 string in the nIn byte
+** buffer pointed to by zIn.
+*/
+static int utf8Charlen(const char *zIn, int nIn){
+  int i;
+  int nChar = 0;
+  for(i=0; i<nIn; nChar++){
+    int sz;
+    utf8Read((const unsigned char *)&zIn[i], nIn-i, &sz);
+    i += sz;
+  }
+  return nChar;
+}
+
+typedef struct Transliteration Transliteration;
+struct Transliteration {
+ unsigned short int cFrom;
+ unsigned char cTo0, cTo1, cTo2, cTo3;
+#ifdef SQLITE_SPELLFIX_5BYTE_MAPPINGS
+ unsigned char cTo4;
+#endif
+};
+
+/*
+** Table of translations from unicode characters into ASCII.
+*/
+static const Transliteration translit[] = {
+  { 0x00A0,  0x20, 0x00, 0x00, 0x00 },  /*   to   */
+  { 0x00B5,  0x75, 0x00, 0x00, 0x00 },  /* µ to u */
+  { 0x00C0,  0x41, 0x00, 0x00, 0x00 },  /* À to A */
+  { 0x00C1,  0x41, 0x00, 0x00, 0x00 },  /* Á to A */
+  { 0x00C2,  0x41, 0x00, 0x00, 0x00 },  /* Â to A */
+  { 0x00C3,  0x41, 0x00, 0x00, 0x00 },  /* Ã to A */
+  { 0x00C4,  0x41, 0x65, 0x00, 0x00 },  /* Ä to Ae */
+  { 0x00C5,  0x41, 0x61, 0x00, 0x00 },  /* Å to Aa */
+  { 0x00C6,  0x41, 0x45, 0x00, 0x00 },  /* Æ to AE */
+  { 0x00C7,  0x43, 0x00, 0x00, 0x00 },  /* Ç to C */
+  { 0x00C8,  0x45, 0x00, 0x00, 0x00 },  /* È to E */
+  { 0x00C9,  0x45, 0x00, 0x00, 0x00 },  /* É to E */
+  { 0x00CA,  0x45, 0x00, 0x00, 0x00 },  /* Ê to E */
+  { 0x00CB,  0x45, 0x00, 0x00, 0x00 },  /* Ë to E */
+  { 0x00CC,  0x49, 0x00, 0x00, 0x00 },  /* Ì to I */
+  { 0x00CD,  0x49, 0x00, 0x00, 0x00 },  /* Í to I */
+  { 0x00CE,  0x49, 0x00, 0x00, 0x00 },  /* Î to I */
+  { 0x00CF,  0x49, 0x00, 0x00, 0x00 },  /* Ï to I */
+  { 0x00D0,  0x44, 0x00, 0x00, 0x00 },  /* Ð to D */
+  { 0x00D1,  0x4E, 0x00, 0x00, 0x00 },  /* Ñ to N */
+  { 0x00D2,  0x4F, 0x00, 0x00, 0x00 },  /* Ò to O */
+  { 0x00D3,  0x4F, 0x00, 0x00, 0x00 },  /* Ó to O */
+  { 0x00D4,  0x4F, 0x00, 0x00, 0x00 },  /* Ô to O */
+  { 0x00D5,  0x4F, 0x00, 0x00, 0x00 },  /* Õ to O */
+  { 0x00D6,  0x4F, 0x65, 0x00, 0x00 },  /* Ö to Oe */
+  { 0x00D7,  0x78, 0x00, 0x00, 0x00 },  /* × to x */
+  { 0x00D8,  0x4F, 0x00, 0x00, 0x00 },  /* Ø to O */
+  { 0x00D9,  0x55, 0x00, 0x00, 0x00 },  /* Ù to U */
+  { 0x00DA,  0x55, 0x00, 0x00, 0x00 },  /* Ú to U */
+  { 0x00DB,  0x55, 0x00, 0x00, 0x00 },  /* Û to U */
+  { 0x00DC,  0x55, 0x65, 0x00, 0x00 },  /* Ü to Ue */
+  { 0x00DD,  0x59, 0x00, 0x00, 0x00 },  /* Ý to Y */
+  { 0x00DE,  0x54, 0x68, 0x00, 0x00 },  /* Þ to Th */
+  { 0x00DF,  0x73, 0x73, 0x00, 0x00 },  /* ß to ss */
+  { 0x00E0,  0x61, 0x00, 0x00, 0x00 },  /* à to a */
+  { 0x00E1,  0x61, 0x00, 0x00, 0x00 },  /* á to a */
+  { 0x00E2,  0x61, 0x00, 0x00, 0x00 },  /* â to a */
+  { 0x00E3,  0x61, 0x00, 0x00, 0x00 },  /* ã to a */
+  { 0x00E4,  0x61, 0x65, 0x00, 0x00 },  /* ä to ae */
+  { 0x00E5,  0x61, 0x61, 0x00, 0x00 },  /* å to aa */
+  { 0x00E6,  0x61, 0x65, 0x00, 0x00 },  /* æ to ae */
+  { 0x00E7,  0x63, 0x00, 0x00, 0x00 },  /* ç to c */
+  { 0x00E8,  0x65, 0x00, 0x00, 0x00 },  /* è to e */
+  { 0x00E9,  0x65, 0x00, 0x00, 0x00 },  /* é to e */
+  { 0x00EA,  0x65, 0x00, 0x00, 0x00 },  /* ê to e */
+  { 0x00EB,  0x65, 0x00, 0x00, 0x00 },  /* ë to e */
+  { 0x00EC,  0x69, 0x00, 0x00, 0x00 },  /* ì to i */
+  { 0x00ED,  0x69, 0x00, 0x00, 0x00 },  /* í to i */
+  { 0x00EE,  0x69, 0x00, 0x00, 0x00 },  /* î to i */
+  { 0x00EF,  0x69, 0x00, 0x00, 0x00 },  /* ï to i */
+  { 0x00F0,  0x64, 0x00, 0x00, 0x00 },  /* ð to d */
+  { 0x00F1,  0x6E, 0x00, 0x00, 0x00 },  /* ñ to n */
+  { 0x00F2,  0x6F, 0x00, 0x00, 0x00 },  /* ò to o */
+  { 0x00F3,  0x6F, 0x00, 0x00, 0x00 },  /* ó to o */
+  { 0x00F4,  0x6F, 0x00, 0x00, 0x00 },  /* ô to o */
+  { 0x00F5,  0x6F, 0x00, 0x00, 0x00 },  /* õ to o */
+  { 0x00F6,  0x6F, 0x65, 0x00, 0x00 },  /* ö to oe */
+  { 0x00F7,  0x3A, 0x00, 0x00, 0x00 },  /* ÷ to : */
+  { 0x00F8,  0x6F, 0x00, 0x00, 0x00 },  /* ø to o */
+  { 0x00F9,  0x75, 0x00, 0x00, 0x00 },  /* ù to u */
+  { 0x00FA,  0x75, 0x00, 0x00, 0x00 },  /* ú to u */
+  { 0x00FB,  0x75, 0x00, 0x00, 0x00 },  /* û to u */
+  { 0x00FC,  0x75, 0x65, 0x00, 0x00 },  /* ü to ue */
+  { 0x00FD,  0x79, 0x00, 0x00, 0x00 },  /* ý to y */
+  { 0x00FE,  0x74, 0x68, 0x00, 0x00 },  /* þ to th */
+  { 0x00FF,  0x79, 0x00, 0x00, 0x00 },  /* ÿ to y */
+  { 0x0100,  0x41, 0x00, 0x00, 0x00 },  /* Ā to A */
+  { 0x0101,  0x61, 0x00, 0x00, 0x00 },  /* ā to a */
+  { 0x0102,  0x41, 0x00, 0x00, 0x00 },  /* Ă to A */
+  { 0x0103,  0x61, 0x00, 0x00, 0x00 },  /* ă to a */
+  { 0x0104,  0x41, 0x00, 0x00, 0x00 },  /* Ą to A */
+  { 0x0105,  0x61, 0x00, 0x00, 0x00 },  /* ą to a */
+  { 0x0106,  0x43, 0x00, 0x00, 0x00 },  /* Ć to C */
+  { 0x0107,  0x63, 0x00, 0x00, 0x00 },  /* ć to c */
+  { 0x0108,  0x43, 0x68, 0x00, 0x00 },  /* Ĉ to Ch */
+  { 0x0109,  0x63, 0x68, 0x00, 0x00 },  /* ĉ to ch */
+  { 0x010A,  0x43, 0x00, 0x00, 0x00 },  /* Ċ to C */
+  { 0x010B,  0x63, 0x00, 0x00, 0x00 },  /* ċ to c */
+  { 0x010C,  0x43, 0x00, 0x00, 0x00 },  /* Č to C */
+  { 0x010D,  0x63, 0x00, 0x00, 0x00 },  /* č to c */
+  { 0x010E,  0x44, 0x00, 0x00, 0x00 },  /* Ď to D */
+  { 0x010F,  0x64, 0x00, 0x00, 0x00 },  /* ď to d */
+  { 0x0110,  0x44, 0x00, 0x00, 0x00 },  /* Đ to D */
+  { 0x0111,  0x64, 0x00, 0x00, 0x00 },  /* đ to d */
+  { 0x0112,  0x45, 0x00, 0x00, 0x00 },  /* Ē to E */
+  { 0x0113,  0x65, 0x00, 0x00, 0x00 },  /* ē to e */
+  { 0x0114,  0x45, 0x00, 0x00, 0x00 },  /* Ĕ to E */
+  { 0x0115,  0x65, 0x00, 0x00, 0x00 },  /* ĕ to e */
+  { 0x0116,  0x45, 0x00, 0x00, 0x00 },  /* Ė to E */
+  { 0x0117,  0x65, 0x00, 0x00, 0x00 },  /* ė to e */
+  { 0x0118,  0x45, 0x00, 0x00, 0x00 },  /* Ę to E */
+  { 0x0119,  0x65, 0x00, 0x00, 0x00 },  /* ę to e */
+  { 0x011A,  0x45, 0x00, 0x00, 0x00 },  /* Ě to E */
+  { 0x011B,  0x65, 0x00, 0x00, 0x00 },  /* ě to e */
+  { 0x011C,  0x47, 0x68, 0x00, 0x00 },  /* Ĝ to Gh */
+  { 0x011D,  0x67, 0x68, 0x00, 0x00 },  /* ĝ to gh */
+  { 0x011E,  0x47, 0x00, 0x00, 0x00 },  /* Ğ to G */
+  { 0x011F,  0x67, 0x00, 0x00, 0x00 },  /* ğ to g */
+  { 0x0120,  0x47, 0x00, 0x00, 0x00 },  /* Ġ to G */
+  { 0x0121,  0x67, 0x00, 0x00, 0x00 },  /* ġ to g */
+  { 0x0122,  0x47, 0x00, 0x00, 0x00 },  /* Ģ to G */
+  { 0x0123,  0x67, 0x00, 0x00, 0x00 },  /* ģ to g */
+  { 0x0124,  0x48, 0x68, 0x00, 0x00 },  /* Ĥ to Hh */
+  { 0x0125,  0x68, 0x68, 0x00, 0x00 },  /* ĥ to hh */
+  { 0x0126,  0x48, 0x00, 0x00, 0x00 },  /* Ħ to H */
+  { 0x0127,  0x68, 0x00, 0x00, 0x00 },  /* ħ to h */
+  { 0x0128,  0x49, 0x00, 0x00, 0x00 },  /* Ĩ to I */
+  { 0x0129,  0x69, 0x00, 0x00, 0x00 },  /* ĩ to i */
+  { 0x012A,  0x49, 0x00, 0x00, 0x00 },  /* Ī to I */
+  { 0x012B,  0x69, 0x00, 0x00, 0x00 },  /* ī to i */
+  { 0x012C,  0x49, 0x00, 0x00, 0x00 },  /* Ĭ to I */
+  { 0x012D,  0x69, 0x00, 0x00, 0x00 },  /* ĭ to i */
+  { 0x012E,  0x49, 0x00, 0x00, 0x00 },  /* Į to I */
+  { 0x012F,  0x69, 0x00, 0x00, 0x00 },  /* į to i */
+  { 0x0130,  0x49, 0x00, 0x00, 0x00 },  /* İ to I */
+  { 0x0131,  0x69, 0x00, 0x00, 0x00 },  /* ı to i */
+  { 0x0132,  0x49, 0x4A, 0x00, 0x00 },  /* IJ to IJ */
+  { 0x0133,  0x69, 0x6A, 0x00, 0x00 },  /* ij to ij */
+  { 0x0134,  0x4A, 0x68, 0x00, 0x00 },  /* Ĵ to Jh */
+  { 0x0135,  0x6A, 0x68, 0x00, 0x00 },  /* ĵ to jh */
+  { 0x0136,  0x4B, 0x00, 0x00, 0x00 },  /* Ķ to K */
+  { 0x0137,  0x6B, 0x00, 0x00, 0x00 },  /* ķ to k */
+  { 0x0138,  0x6B, 0x00, 0x00, 0x00 },  /* ĸ to k */
+  { 0x0139,  0x4C, 0x00, 0x00, 0x00 },  /* Ĺ to L */
+  { 0x013A,  0x6C, 0x00, 0x00, 0x00 },  /* ĺ to l */
+  { 0x013B,  0x4C, 0x00, 0x00, 0x00 },  /* Ļ to L */
+  { 0x013C,  0x6C, 0x00, 0x00, 0x00 },  /* ļ to l */
+  { 0x013D,  0x4C, 0x00, 0x00, 0x00 },  /* Ľ to L */
+  { 0x013E,  0x6C, 0x00, 0x00, 0x00 },  /* ľ to l */
+  { 0x013F,  0x4C, 0x2E, 0x00, 0x00 },  /* Ŀ to L. */
+  { 0x0140,  0x6C, 0x2E, 0x00, 0x00 },  /* ŀ to l. */
+  { 0x0141,  0x4C, 0x00, 0x00, 0x00 },  /* Ł to L */
+  { 0x0142,  0x6C, 0x00, 0x00, 0x00 },  /* ł to l */
+  { 0x0143,  0x4E, 0x00, 0x00, 0x00 },  /* Ń to N */
+  { 0x0144,  0x6E, 0x00, 0x00, 0x00 },  /* ń to n */
+  { 0x0145,  0x4E, 0x00, 0x00, 0x00 },  /* Ņ to N */
+  { 0x0146,  0x6E, 0x00, 0x00, 0x00 },  /* ņ to n */
+  { 0x0147,  0x4E, 0x00, 0x00, 0x00 },  /* Ň to N */
+  { 0x0148,  0x6E, 0x00, 0x00, 0x00 },  /* ň to n */
+  { 0x0149,  0x27, 0x6E, 0x00, 0x00 },  /* ʼn to 'n */
+  { 0x014A,  0x4E, 0x47, 0x00, 0x00 },  /* Ŋ to NG */
+  { 0x014B,  0x6E, 0x67, 0x00, 0x00 },  /* ŋ to ng */
+  { 0x014C,  0x4F, 0x00, 0x00, 0x00 },  /* Ō to O */
+  { 0x014D,  0x6F, 0x00, 0x00, 0x00 },  /* ō to o */
+  { 0x014E,  0x4F, 0x00, 0x00, 0x00 },  /* Ŏ to O */
+  { 0x014F,  0x6F, 0x00, 0x00, 0x00 },  /* ŏ to o */
+  { 0x0150,  0x4F, 0x00, 0x00, 0x00 },  /* Ő to O */
+  { 0x0151,  0x6F, 0x00, 0x00, 0x00 },  /* ő to o */
+  { 0x0152,  0x4F, 0x45, 0x00, 0x00 },  /* Πto OE */
+  { 0x0153,  0x6F, 0x65, 0x00, 0x00 },  /* œ to oe */
+  { 0x0154,  0x52, 0x00, 0x00, 0x00 },  /* Ŕ to R */
+  { 0x0155,  0x72, 0x00, 0x00, 0x00 },  /* ŕ to r */
+  { 0x0156,  0x52, 0x00, 0x00, 0x00 },  /* Ŗ to R */
+  { 0x0157,  0x72, 0x00, 0x00, 0x00 },  /* ŗ to r */
+  { 0x0158,  0x52, 0x00, 0x00, 0x00 },  /* Ř to R */
+  { 0x0159,  0x72, 0x00, 0x00, 0x00 },  /* ř to r */
+  { 0x015A,  0x53, 0x00, 0x00, 0x00 },  /* Ś to S */
+  { 0x015B,  0x73, 0x00, 0x00, 0x00 },  /* ś to s */
+  { 0x015C,  0x53, 0x68, 0x00, 0x00 },  /* Ŝ to Sh */
+  { 0x015D,  0x73, 0x68, 0x00, 0x00 },  /* ŝ to sh */
+  { 0x015E,  0x53, 0x00, 0x00, 0x00 },  /* Ş to S */
+  { 0x015F,  0x73, 0x00, 0x00, 0x00 },  /* ş to s */
+  { 0x0160,  0x53, 0x00, 0x00, 0x00 },  /* Š to S */
+  { 0x0161,  0x73, 0x00, 0x00, 0x00 },  /* š to s */
+  { 0x0162,  0x54, 0x00, 0x00, 0x00 },  /* Ţ to T */
+  { 0x0163,  0x74, 0x00, 0x00, 0x00 },  /* ţ to t */
+  { 0x0164,  0x54, 0x00, 0x00, 0x00 },  /* Ť to T */
+  { 0x0165,  0x74, 0x00, 0x00, 0x00 },  /* ť to t */
+  { 0x0166,  0x54, 0x00, 0x00, 0x00 },  /* Ŧ to T */
+  { 0x0167,  0x74, 0x00, 0x00, 0x00 },  /* ŧ to t */
+  { 0x0168,  0x55, 0x00, 0x00, 0x00 },  /* Ũ to U */
+  { 0x0169,  0x75, 0x00, 0x00, 0x00 },  /* ũ to u */
+  { 0x016A,  0x55, 0x00, 0x00, 0x00 },  /* Ū to U */
+  { 0x016B,  0x75, 0x00, 0x00, 0x00 },  /* ū to u */
+  { 0x016C,  0x55, 0x00, 0x00, 0x00 },  /* Ŭ to U */
+  { 0x016D,  0x75, 0x00, 0x00, 0x00 },  /* ŭ to u */
+  { 0x016E,  0x55, 0x00, 0x00, 0x00 },  /* Ů to U */
+  { 0x016F,  0x75, 0x00, 0x00, 0x00 },  /* ů to u */
+  { 0x0170,  0x55, 0x00, 0x00, 0x00 },  /* Ű to U */
+  { 0x0171,  0x75, 0x00, 0x00, 0x00 },  /* ű to u */
+  { 0x0172,  0x55, 0x00, 0x00, 0x00 },  /* Ų to U */
+  { 0x0173,  0x75, 0x00, 0x00, 0x00 },  /* ų to u */
+  { 0x0174,  0x57, 0x00, 0x00, 0x00 },  /* Ŵ to W */
+  { 0x0175,  0x77, 0x00, 0x00, 0x00 },  /* ŵ to w */
+  { 0x0176,  0x59, 0x00, 0x00, 0x00 },  /* Ŷ to Y */
+  { 0x0177,  0x79, 0x00, 0x00, 0x00 },  /* ŷ to y */
+  { 0x0178,  0x59, 0x00, 0x00, 0x00 },  /* Ÿ to Y */
+  { 0x0179,  0x5A, 0x00, 0x00, 0x00 },  /* Ź to Z */
+  { 0x017A,  0x7A, 0x00, 0x00, 0x00 },  /* ź to z */
+  { 0x017B,  0x5A, 0x00, 0x00, 0x00 },  /* Ż to Z */
+  { 0x017C,  0x7A, 0x00, 0x00, 0x00 },  /* ż to z */
+  { 0x017D,  0x5A, 0x00, 0x00, 0x00 },  /* Ž to Z */
+  { 0x017E,  0x7A, 0x00, 0x00, 0x00 },  /* ž to z */
+  { 0x017F,  0x73, 0x00, 0x00, 0x00 },  /* ſ to s */
+  { 0x0192,  0x66, 0x00, 0x00, 0x00 },  /* ƒ to f */
+  { 0x0218,  0x53, 0x00, 0x00, 0x00 },  /* Ș to S */
+  { 0x0219,  0x73, 0x00, 0x00, 0x00 },  /* ș to s */
+  { 0x021A,  0x54, 0x00, 0x00, 0x00 },  /* Ț to T */
+  { 0x021B,  0x74, 0x00, 0x00, 0x00 },  /* ț to t */
+  { 0x0386,  0x41, 0x00, 0x00, 0x00 },  /* Ά to A */
+  { 0x0388,  0x45, 0x00, 0x00, 0x00 },  /* Έ to E */
+  { 0x0389,  0x49, 0x00, 0x00, 0x00 },  /* Ή to I */
+  { 0x038A,  0x49, 0x00, 0x00, 0x00 },  /* Ί to I */
+  { 0x038C,  0x4f, 0x00, 0x00, 0x00 },  /* Ό to O */
+  { 0x038E,  0x59, 0x00, 0x00, 0x00 },  /* Ύ to Y */
+  { 0x038F,  0x4f, 0x00, 0x00, 0x00 },  /* Ώ to O */
+  { 0x0390,  0x69, 0x00, 0x00, 0x00 },  /* ΐ to i */
+  { 0x0391,  0x41, 0x00, 0x00, 0x00 },  /* Α to A */
+  { 0x0392,  0x42, 0x00, 0x00, 0x00 },  /* Β to B */
+  { 0x0393,  0x47, 0x00, 0x00, 0x00 },  /* Γ to G */
+  { 0x0394,  0x44, 0x00, 0x00, 0x00 },  /* Δ to D */
+  { 0x0395,  0x45, 0x00, 0x00, 0x00 },  /* Ε to E */
+  { 0x0396,  0x5a, 0x00, 0x00, 0x00 },  /* Ζ to Z */
+  { 0x0397,  0x49, 0x00, 0x00, 0x00 },  /* Η to I */
+  { 0x0398,  0x54, 0x68, 0x00, 0x00 },  /* Θ to Th */
+  { 0x0399,  0x49, 0x00, 0x00, 0x00 },  /* Ι to I */
+  { 0x039A,  0x4b, 0x00, 0x00, 0x00 },  /* Κ to K */
+  { 0x039B,  0x4c, 0x00, 0x00, 0x00 },  /* Λ to L */
+  { 0x039C,  0x4d, 0x00, 0x00, 0x00 },  /* Μ to M */
+  { 0x039D,  0x4e, 0x00, 0x00, 0x00 },  /* Ν to N */
+  { 0x039E,  0x58, 0x00, 0x00, 0x00 },  /* Ξ to X */
+  { 0x039F,  0x4f, 0x00, 0x00, 0x00 },  /* Ο to O */
+  { 0x03A0,  0x50, 0x00, 0x00, 0x00 },  /* Π to P */
+  { 0x03A1,  0x52, 0x00, 0x00, 0x00 },  /* Ρ to R */
+  { 0x03A3,  0x53, 0x00, 0x00, 0x00 },  /* Σ to S */
+  { 0x03A4,  0x54, 0x00, 0x00, 0x00 },  /* Τ to T */
+  { 0x03A5,  0x59, 0x00, 0x00, 0x00 },  /* Υ to Y */
+  { 0x03A6,  0x46, 0x00, 0x00, 0x00 },  /* Φ to F */
+  { 0x03A7,  0x43, 0x68, 0x00, 0x00 },  /* Χ to Ch */
+  { 0x03A8,  0x50, 0x73, 0x00, 0x00 },  /* Ψ to Ps */
+  { 0x03A9,  0x4f, 0x00, 0x00, 0x00 },  /* Ω to O */
+  { 0x03AA,  0x49, 0x00, 0x00, 0x00 },  /* Ϊ to I */
+  { 0x03AB,  0x59, 0x00, 0x00, 0x00 },  /* Ϋ to Y */
+  { 0x03AC,  0x61, 0x00, 0x00, 0x00 },  /* ά to a */
+  { 0x03AD,  0x65, 0x00, 0x00, 0x00 },  /* έ to e */
+  { 0x03AE,  0x69, 0x00, 0x00, 0x00 },  /* ή to i */
+  { 0x03AF,  0x69, 0x00, 0x00, 0x00 },  /* ί to i */
+  { 0x03B1,  0x61, 0x00, 0x00, 0x00 },  /* α to a */
+  { 0x03B2,  0x62, 0x00, 0x00, 0x00 },  /* β to b */
+  { 0x03B3,  0x67, 0x00, 0x00, 0x00 },  /* γ to g */
+  { 0x03B4,  0x64, 0x00, 0x00, 0x00 },  /* δ to d */
+  { 0x03B5,  0x65, 0x00, 0x00, 0x00 },  /* ε to e */
+  { 0x03B6,  0x7a, 0x00, 0x00, 0x00 },  /* ζ to z */
+  { 0x03B7,  0x69, 0x00, 0x00, 0x00 },  /* η to i */
+  { 0x03B8,  0x74, 0x68, 0x00, 0x00 },  /* θ to th */
+  { 0x03B9,  0x69, 0x00, 0x00, 0x00 },  /* ι to i */
+  { 0x03BA,  0x6b, 0x00, 0x00, 0x00 },  /* κ to k */
+  { 0x03BB,  0x6c, 0x00, 0x00, 0x00 },  /* λ to l */
+  { 0x03BC,  0x6d, 0x00, 0x00, 0x00 },  /* μ to m */
+  { 0x03BD,  0x6e, 0x00, 0x00, 0x00 },  /* ν to n */
+  { 0x03BE,  0x78, 0x00, 0x00, 0x00 },  /* ξ to x */
+  { 0x03BF,  0x6f, 0x00, 0x00, 0x00 },  /* ο to o */
+  { 0x03C0,  0x70, 0x00, 0x00, 0x00 },  /* π to p */
+  { 0x03C1,  0x72, 0x00, 0x00, 0x00 },  /* ρ to r */
+  { 0x03C3,  0x73, 0x00, 0x00, 0x00 },  /* σ to s */
+  { 0x03C4,  0x74, 0x00, 0x00, 0x00 },  /* τ to t */
+  { 0x03C5,  0x79, 0x00, 0x00, 0x00 },  /* υ to y */
+  { 0x03C6,  0x66, 0x00, 0x00, 0x00 },  /* φ to f */
+  { 0x03C7,  0x63, 0x68, 0x00, 0x00 },  /* χ to ch */
+  { 0x03C8,  0x70, 0x73, 0x00, 0x00 },  /* ψ to ps */
+  { 0x03C9,  0x6f, 0x00, 0x00, 0x00 },  /* ω to o */
+  { 0x03CA,  0x69, 0x00, 0x00, 0x00 },  /* ϊ to i */
+  { 0x03CB,  0x79, 0x00, 0x00, 0x00 },  /* ϋ to y */
+  { 0x03CC,  0x6f, 0x00, 0x00, 0x00 },  /* ό to o */
+  { 0x03CD,  0x79, 0x00, 0x00, 0x00 },  /* ύ to y */
+  { 0x03CE,  0x69, 0x00, 0x00, 0x00 },  /* ώ to i */
+  { 0x0400,  0x45, 0x00, 0x00, 0x00 },  /* Ѐ to E */
+  { 0x0401,  0x45, 0x00, 0x00, 0x00 },  /* Ё to E */
+  { 0x0402,  0x44, 0x00, 0x00, 0x00 },  /* Ђ to D */
+  { 0x0403,  0x47, 0x00, 0x00, 0x00 },  /* Ѓ to G */
+  { 0x0404,  0x45, 0x00, 0x00, 0x00 },  /* Є to E */
+  { 0x0405,  0x5a, 0x00, 0x00, 0x00 },  /* Ѕ to Z */
+  { 0x0406,  0x49, 0x00, 0x00, 0x00 },  /* І to I */
+  { 0x0407,  0x49, 0x00, 0x00, 0x00 },  /* Ї to I */
+  { 0x0408,  0x4a, 0x00, 0x00, 0x00 },  /* Ј to J */
+  { 0x0409,  0x49, 0x00, 0x00, 0x00 },  /* Љ to I */
+  { 0x040A,  0x4e, 0x00, 0x00, 0x00 },  /* Њ to N */
+  { 0x040B,  0x44, 0x00, 0x00, 0x00 },  /* Ћ to D */
+  { 0x040C,  0x4b, 0x00, 0x00, 0x00 },  /* Ќ to K */
+  { 0x040D,  0x49, 0x00, 0x00, 0x00 },  /* Ѝ to I */
+  { 0x040E,  0x55, 0x00, 0x00, 0x00 },  /* Ў to U */
+  { 0x040F,  0x44, 0x00, 0x00, 0x00 },  /* Џ to D */
+  { 0x0410,  0x41, 0x00, 0x00, 0x00 },  /* А to A */
+  { 0x0411,  0x42, 0x00, 0x00, 0x00 },  /* Б to B */
+  { 0x0412,  0x56, 0x00, 0x00, 0x00 },  /* В to V */
+  { 0x0413,  0x47, 0x00, 0x00, 0x00 },  /* Г to G */
+  { 0x0414,  0x44, 0x00, 0x00, 0x00 },  /* Д to D */
+  { 0x0415,  0x45, 0x00, 0x00, 0x00 },  /* Е to E */
+  { 0x0416,  0x5a, 0x68, 0x00, 0x00 },  /* Ж to Zh */
+  { 0x0417,  0x5a, 0x00, 0x00, 0x00 },  /* З to Z */
+  { 0x0418,  0x49, 0x00, 0x00, 0x00 },  /* И to I */
+  { 0x0419,  0x49, 0x00, 0x00, 0x00 },  /* Й to I */
+  { 0x041A,  0x4b, 0x00, 0x00, 0x00 },  /* К to K */
+  { 0x041B,  0x4c, 0x00, 0x00, 0x00 },  /* Л to L */
+  { 0x041C,  0x4d, 0x00, 0x00, 0x00 },  /* М to M */
+  { 0x041D,  0x4e, 0x00, 0x00, 0x00 },  /* Н to N */
+  { 0x041E,  0x4f, 0x00, 0x00, 0x00 },  /* О to O */
+  { 0x041F,  0x50, 0x00, 0x00, 0x00 },  /* П to P */
+  { 0x0420,  0x52, 0x00, 0x00, 0x00 },  /* Р to R */
+  { 0x0421,  0x53, 0x00, 0x00, 0x00 },  /* С to S */
+  { 0x0422,  0x54, 0x00, 0x00, 0x00 },  /* Т to T */
+  { 0x0423,  0x55, 0x00, 0x00, 0x00 },  /* У to U */
+  { 0x0424,  0x46, 0x00, 0x00, 0x00 },  /* Ф to F */
+  { 0x0425,  0x4b, 0x68, 0x00, 0x00 },  /* Х to Kh */
+  { 0x0426,  0x54, 0x63, 0x00, 0x00 },  /* Ц to Tc */
+  { 0x0427,  0x43, 0x68, 0x00, 0x00 },  /* Ч to Ch */
+  { 0x0428,  0x53, 0x68, 0x00, 0x00 },  /* Ш to Sh */
+  { 0x0429,  0x53, 0x68, 0x63, 0x68 },  /* Щ to Shch */
+  { 0x042A,  0x61, 0x00, 0x00, 0x00 },  /*  to A */
+  { 0x042B,  0x59, 0x00, 0x00, 0x00 },  /* Ы to Y */
+  { 0x042C,  0x59, 0x00, 0x00, 0x00 },  /*  to Y */
+  { 0x042D,  0x45, 0x00, 0x00, 0x00 },  /* Э to E */
+  { 0x042E,  0x49, 0x75, 0x00, 0x00 },  /* Ю to Iu */
+  { 0x042F,  0x49, 0x61, 0x00, 0x00 },  /* Я to Ia */
+  { 0x0430,  0x61, 0x00, 0x00, 0x00 },  /* а to a */
+  { 0x0431,  0x62, 0x00, 0x00, 0x00 },  /* б to b */
+  { 0x0432,  0x76, 0x00, 0x00, 0x00 },  /* в to v */
+  { 0x0433,  0x67, 0x00, 0x00, 0x00 },  /* г to g */
+  { 0x0434,  0x64, 0x00, 0x00, 0x00 },  /* д to d */
+  { 0x0435,  0x65, 0x00, 0x00, 0x00 },  /* е to e */
+  { 0x0436,  0x7a, 0x68, 0x00, 0x00 },  /* ж to zh */
+  { 0x0437,  0x7a, 0x00, 0x00, 0x00 },  /* з to z */
+  { 0x0438,  0x69, 0x00, 0x00, 0x00 },  /* и to i */
+  { 0x0439,  0x69, 0x00, 0x00, 0x00 },  /* й to i */
+  { 0x043A,  0x6b, 0x00, 0x00, 0x00 },  /* к to k */
+  { 0x043B,  0x6c, 0x00, 0x00, 0x00 },  /* л to l */
+  { 0x043C,  0x6d, 0x00, 0x00, 0x00 },  /* м to m */
+  { 0x043D,  0x6e, 0x00, 0x00, 0x00 },  /* н to n */
+  { 0x043E,  0x6f, 0x00, 0x00, 0x00 },  /* о to o */
+  { 0x043F,  0x70, 0x00, 0x00, 0x00 },  /* п to p */
+  { 0x0440,  0x72, 0x00, 0x00, 0x00 },  /* р to r */
+  { 0x0441,  0x73, 0x00, 0x00, 0x00 },  /* с to s */
+  { 0x0442,  0x74, 0x00, 0x00, 0x00 },  /* т to t */
+  { 0x0443,  0x75, 0x00, 0x00, 0x00 },  /* у to u */
+  { 0x0444,  0x66, 0x00, 0x00, 0x00 },  /* ф to f */
+  { 0x0445,  0x6b, 0x68, 0x00, 0x00 },  /* х to kh */
+  { 0x0446,  0x74, 0x63, 0x00, 0x00 },  /* ц to tc */
+  { 0x0447,  0x63, 0x68, 0x00, 0x00 },  /* ч to ch */
+  { 0x0448,  0x73, 0x68, 0x00, 0x00 },  /* ш to sh */
+  { 0x0449,  0x73, 0x68, 0x63, 0x68 },  /* щ to shch */
+  { 0x044A,  0x61, 0x00, 0x00, 0x00 },  /*  to a */
+  { 0x044B,  0x79, 0x00, 0x00, 0x00 },  /* ы to y */
+  { 0x044C,  0x79, 0x00, 0x00, 0x00 },  /*  to y */
+  { 0x044D,  0x65, 0x00, 0x00, 0x00 },  /* э to e */
+  { 0x044E,  0x69, 0x75, 0x00, 0x00 },  /* ю to iu */
+  { 0x044F,  0x69, 0x61, 0x00, 0x00 },  /* я to ia */
+  { 0x0450,  0x65, 0x00, 0x00, 0x00 },  /* ѐ to e */
+  { 0x0451,  0x65, 0x00, 0x00, 0x00 },  /* ё to e */
+  { 0x0452,  0x64, 0x00, 0x00, 0x00 },  /* ђ to d */
+  { 0x0453,  0x67, 0x00, 0x00, 0x00 },  /* ѓ to g */
+  { 0x0454,  0x65, 0x00, 0x00, 0x00 },  /* є to e */
+  { 0x0455,  0x7a, 0x00, 0x00, 0x00 },  /* ѕ to z */
+  { 0x0456,  0x69, 0x00, 0x00, 0x00 },  /* і to i */
+  { 0x0457,  0x69, 0x00, 0x00, 0x00 },  /* ї to i */
+  { 0x0458,  0x6a, 0x00, 0x00, 0x00 },  /* ј to j */
+  { 0x0459,  0x69, 0x00, 0x00, 0x00 },  /* љ to i */
+  { 0x045A,  0x6e, 0x00, 0x00, 0x00 },  /* њ to n */
+  { 0x045B,  0x64, 0x00, 0x00, 0x00 },  /* ћ to d */
+  { 0x045C,  0x6b, 0x00, 0x00, 0x00 },  /* ќ to k */
+  { 0x045D,  0x69, 0x00, 0x00, 0x00 },  /* ѝ to i */
+  { 0x045E,  0x75, 0x00, 0x00, 0x00 },  /* ў to u */
+  { 0x045F,  0x64, 0x00, 0x00, 0x00 },  /* џ to d */
+  { 0x1E02,  0x42, 0x00, 0x00, 0x00 },  /* Ḃ to B */
+  { 0x1E03,  0x62, 0x00, 0x00, 0x00 },  /* ḃ to b */
+  { 0x1E0A,  0x44, 0x00, 0x00, 0x00 },  /* Ḋ to D */
+  { 0x1E0B,  0x64, 0x00, 0x00, 0x00 },  /* ḋ to d */
+  { 0x1E1E,  0x46, 0x00, 0x00, 0x00 },  /* Ḟ to F */
+  { 0x1E1F,  0x66, 0x00, 0x00, 0x00 },  /* ḟ to f */
+  { 0x1E40,  0x4D, 0x00, 0x00, 0x00 },  /* Ṁ to M */
+  { 0x1E41,  0x6D, 0x00, 0x00, 0x00 },  /* ṁ to m */
+  { 0x1E56,  0x50, 0x00, 0x00, 0x00 },  /* Ṗ to P */
+  { 0x1E57,  0x70, 0x00, 0x00, 0x00 },  /* ṗ to p */
+  { 0x1E60,  0x53, 0x00, 0x00, 0x00 },  /* Ṡ to S */
+  { 0x1E61,  0x73, 0x00, 0x00, 0x00 },  /* ṡ to s */
+  { 0x1E6A,  0x54, 0x00, 0x00, 0x00 },  /* Ṫ to T */
+  { 0x1E6B,  0x74, 0x00, 0x00, 0x00 },  /* ṫ to t */
+  { 0x1E80,  0x57, 0x00, 0x00, 0x00 },  /* Ẁ to W */
+  { 0x1E81,  0x77, 0x00, 0x00, 0x00 },  /* ẁ to w */
+  { 0x1E82,  0x57, 0x00, 0x00, 0x00 },  /* Ẃ to W */
+  { 0x1E83,  0x77, 0x00, 0x00, 0x00 },  /* ẃ to w */
+  { 0x1E84,  0x57, 0x00, 0x00, 0x00 },  /* Ẅ to W */
+  { 0x1E85,  0x77, 0x00, 0x00, 0x00 },  /* ẅ to w */
+  { 0x1EF2,  0x59, 0x00, 0x00, 0x00 },  /* Ỳ to Y */
+  { 0x1EF3,  0x79, 0x00, 0x00, 0x00 },  /* ỳ to y */
+  { 0xFB00,  0x66, 0x66, 0x00, 0x00 },  /* ff to ff */
+  { 0xFB01,  0x66, 0x69, 0x00, 0x00 },  /* fi to fi */
+  { 0xFB02,  0x66, 0x6C, 0x00, 0x00 },  /* fl to fl */
+  { 0xFB05,  0x73, 0x74, 0x00, 0x00 },  /* ſt to st */
+  { 0xFB06,  0x73, 0x74, 0x00, 0x00 },  /* st to st */
+};
+
+static const Transliteration *spellfixFindTranslit(int c, int *pxTop){
+  *pxTop = (sizeof(translit)/sizeof(translit[0])) - 1;
+  return translit;
+}
+
+/*
+** Convert the input string from UTF-8 into pure ASCII by converting
+** all non-ASCII characters to some combination of characters in the
+** ASCII subset.
+**
+** The returned string might contain more characters than the input.
+**
+** Space to hold the returned string comes from sqlite3_malloc() and
+** should be freed by the caller.
+*/
+static unsigned char *transliterate(const unsigned char *zIn, int nIn){
+#ifdef SQLITE_SPELLFIX_5BYTE_MAPPINGS
+  unsigned char *zOut = sqlite3_malloc64( nIn*5 + 1 );
+#else
+  unsigned char *zOut = sqlite3_malloc64( nIn*4 + 1 );
+#endif
+  int c, sz, nOut;
+  if( zOut==0 ) return 0;
+  nOut = 0;
+  while( nIn>0 ){
+    c = utf8Read(zIn, nIn, &sz);
+    zIn += sz;
+    nIn -= sz;
+    if( c<=127 ){
+      zOut[nOut++] = (unsigned char)c;
+    }else{
+      int xTop, xBtm, x;
+      const Transliteration *tbl = spellfixFindTranslit(c, &xTop);
+      xBtm = 0;
+      while( xTop>=xBtm ){
+        x = (xTop + xBtm)/2;
+        if( tbl[x].cFrom==c ){
+          zOut[nOut++] = tbl[x].cTo0;
+          if( tbl[x].cTo1 ){
+            zOut[nOut++] = tbl[x].cTo1;
+            if( tbl[x].cTo2 ){
+              zOut[nOut++] = tbl[x].cTo2;
+              if( tbl[x].cTo3 ){
+                zOut[nOut++] = tbl[x].cTo3;
+#ifdef SQLITE_SPELLFIX_5BYTE_MAPPINGS
+                if( tbl[x].cTo4 ){
+                  zOut[nOut++] = tbl[x].cTo4;
+                }
+#endif /* SQLITE_SPELLFIX_5BYTE_MAPPINGS */
+              }
+            }
+          }
+          c = 0;
+          break;
+        }else if( tbl[x].cFrom>c ){
+          xTop = x-1;
+        }else{
+          xBtm = x+1;
+        }
+      }
+      if( c ) zOut[nOut++] = '?';
+    }
+  }
+  zOut[nOut] = 0;
+  return zOut;
+}
+
+/*
+** Return the number of characters in the shortest prefix of the input
+** string that transliterates to an ASCII string nTrans bytes or longer.
+** Or, if the transliteration of the input string is less than nTrans
+** bytes in size, return the number of characters in the input string.
+*/
+static int translen_to_charlen(const char *zIn, int nIn, int nTrans){
+  int i, c, sz, nOut;
+  int nChar;
+
+  i = nOut = 0;
+  for(nChar=0; i<nIn && nOut<nTrans; nChar++){
+    c = utf8Read((const unsigned char *)&zIn[i], nIn-i, &sz);
+    i += sz;
+
+    nOut++;
+    if( c>=128 ){
+      int xTop, xBtm, x;
+      const Transliteration *tbl = spellfixFindTranslit(c, &xTop);
+      xBtm = 0;
+      while( xTop>=xBtm ){
+        x = (xTop + xBtm)/2;
+        if( tbl[x].cFrom==c ){
+          if( tbl[x].cTo1 ){
+            nOut++;
+            if( tbl[x].cTo2 ){
+              nOut++;
+              if( tbl[x].cTo3 ){
+                nOut++;
+              }
+            }
+          }
+          break;
+        }else if( tbl[x].cFrom>c ){
+          xTop = x-1;
+        }else{
+          xBtm = x+1;
+        }
+      }
+    }
+  }
+
+  return nChar;
+}
+
+
+/*
+**    spellfix1_translit(X)
+**
+** Convert a string that contains non-ASCII Roman characters into 
+** pure ASCII.
+*/
+static void transliterateSqlFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  const unsigned char *zIn = sqlite3_value_text(argv[0]);
+  int nIn = sqlite3_value_bytes(argv[0]);
+  unsigned char *zOut = transliterate(zIn, nIn);
+  if( zOut==0 ){
+    sqlite3_result_error_nomem(context);
+  }else{
+    sqlite3_result_text(context, (char*)zOut, -1, sqlite3_free);
+  }
+}
+
+/*
+**    spellfix1_scriptcode(X)
+**
+** Try to determine the dominant script used by the word X and return
+** its ISO 15924 numeric code.
+**
+** The current implementation only understands the following scripts:
+**
+**    215  (Latin)
+**    220  (Cyrillic)
+**    200  (Greek)
+**
+** This routine will return 998 if the input X contains characters from
+** two or more of the above scripts or 999 if X contains no characters
+** from any of the above scripts.
+*/
+static void scriptCodeSqlFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  const unsigned char *zIn = sqlite3_value_text(argv[0]);
+  int nIn = sqlite3_value_bytes(argv[0]);
+  int c, sz;
+  int scriptMask = 0;
+  int res;
+  int seenDigit = 0;
+# define SCRIPT_LATIN       0x0001
+# define SCRIPT_CYRILLIC    0x0002
+# define SCRIPT_GREEK       0x0004
+# define SCRIPT_HEBREW      0x0008
+# define SCRIPT_ARABIC      0x0010
+
+  while( nIn>0 ){
+    c = utf8Read(zIn, nIn, &sz);
+    zIn += sz;
+    nIn -= sz;
+    if( c<0x02af ){
+      if( c>=0x80 || midClass[c&0x7f]<CCLASS_DIGIT ){
+        scriptMask |= SCRIPT_LATIN;
+      }else if( c>='0' && c<='9' ){
+        seenDigit = 1;
+      }
+    }else if( c>=0x0400 && c<=0x04ff ){
+      scriptMask |= SCRIPT_CYRILLIC;
+    }else if( c>=0x0386 && c<=0x03ce ){
+      scriptMask |= SCRIPT_GREEK;
+    }else if( c>=0x0590 && c<=0x05ff ){
+      scriptMask |= SCRIPT_HEBREW;
+    }else if( c>=0x0600 && c<=0x06ff ){
+      scriptMask |= SCRIPT_ARABIC;
+    }
+  }
+  if( scriptMask==0 && seenDigit ) scriptMask = SCRIPT_LATIN;
+  switch( scriptMask ){
+    case 0:                res = 999; break;
+    case SCRIPT_LATIN:     res = 215; break;
+    case SCRIPT_CYRILLIC:  res = 220; break;
+    case SCRIPT_GREEK:     res = 200; break;
+    case SCRIPT_HEBREW:    res = 125; break;
+    case SCRIPT_ARABIC:    res = 160; break;
+    default:               res = 998; break;
+  }
+  sqlite3_result_int(context, res);
+}
+
+/* End transliterate
+******************************************************************************
+******************************************************************************
+** Begin spellfix1 virtual table.
+*/
+
+/* Maximum length of a phonehash used for querying the shadow table */
+#define SPELLFIX_MX_HASH  32
+
+/* Maximum number of hash strings to examine per query */
+#define SPELLFIX_MX_RUN   1
+
+typedef struct spellfix1_vtab spellfix1_vtab;
+typedef struct spellfix1_cursor spellfix1_cursor;
+
+/* Fuzzy-search virtual table object */
+struct spellfix1_vtab {
+  sqlite3_vtab base;         /* Base class - must be first */
+  sqlite3 *db;               /* Database connection */
+  char *zDbName;             /* Name of database holding this table */
+  char *zTableName;          /* Name of the virtual table */
+  char *zCostTable;          /* Table holding edit-distance cost numbers */
+  EditDist3Config *pConfig3; /* Parsed edit distance costs */
+};
+
+/* Fuzzy-search cursor object */
+struct spellfix1_cursor {
+  sqlite3_vtab_cursor base;    /* Base class - must be first */
+  spellfix1_vtab *pVTab;       /* The table to which this cursor belongs */
+  char *zPattern;              /* rhs of MATCH clause */
+  int idxNum;                  /* idxNum value passed to xFilter() */
+  int nRow;                    /* Number of rows of content */
+  int nAlloc;                  /* Number of allocated rows */
+  int iRow;                    /* Current row of content */
+  int iLang;                   /* Value of the langid= constraint */
+  int iTop;                    /* Value of the top= constraint */
+  int iScope;                  /* Value of the scope= constraint */
+  int nSearch;                 /* Number of vocabulary items checked */
+  sqlite3_stmt *pFullScan;     /* Shadow query for a full table scan */
+  struct spellfix1_row {       /* For each row of content */
+    sqlite3_int64 iRowid;         /* Rowid for this row */
+    char *zWord;                  /* Text for this row */
+    int iRank;                    /* Rank for this row */
+    int iDistance;                /* Distance from pattern for this row */
+    int iScore;                   /* Score for sorting */
+    int iMatchlen;                /* Value of matchlen column (or -1) */
+    char zHash[SPELLFIX_MX_HASH]; /* the phonehash used for this match */
+  } *a; 
+};
+
+/*
+** Construct one or more SQL statements from the format string given
+** and then evaluate those statements. The success code is written
+** into *pRc.
+**
+** If *pRc is initially non-zero then this routine is a no-op.
+*/
+static void spellfix1DbExec(
+  int *pRc,              /* Success code */
+  sqlite3 *db,           /* Database in which to run SQL */
+  const char *zFormat,   /* Format string for SQL */
+  ...                    /* Arguments to the format string */
+){
+  va_list ap;
+  char *zSql;
+  if( *pRc ) return;
+  va_start(ap, zFormat);
+  zSql = sqlite3_vmprintf(zFormat, ap);
+  va_end(ap);
+  if( zSql==0 ){
+    *pRc = SQLITE_NOMEM;
+  }else{
+    *pRc = sqlite3_exec(db, zSql, 0, 0, 0);
+    sqlite3_free(zSql);
+  }
+}
+
+/*
+** xDisconnect/xDestroy method for the fuzzy-search module.
+*/
+static int spellfix1Uninit(int isDestroy, sqlite3_vtab *pVTab){
+  spellfix1_vtab *p = (spellfix1_vtab*)pVTab;
+  int rc = SQLITE_OK;
+  if( isDestroy ){
+    sqlite3 *db = p->db;
+    spellfix1DbExec(&rc, db, "DROP TABLE IF EXISTS \"%w\".\"%w_vocab\"",
+                  p->zDbName, p->zTableName);
+  }
+  if( rc==SQLITE_OK ){
+    sqlite3_free(p->zTableName);
+    editDist3ConfigDelete(p->pConfig3);
+    sqlite3_free(p->zCostTable);
+    sqlite3_free(p);
+  }
+  return rc;
+}
+static int spellfix1Disconnect(sqlite3_vtab *pVTab){
+  return spellfix1Uninit(0, pVTab);
+}
+static int spellfix1Destroy(sqlite3_vtab *pVTab){
+  return spellfix1Uninit(1, pVTab);
+}
+
+/*
+** Make a copy of a string.  Remove leading and trailing whitespace
+** and dequote it.
+*/
+static char *spellfix1Dequote(const char *zIn){
+  char *zOut;
+  int i, j;
+  char c;
+  while( isspace((unsigned char)zIn[0]) ) zIn++;
+  zOut = sqlite3_mprintf("%s", zIn);
+  if( zOut==0 ) return 0;
+  i = (int)strlen(zOut);
+#if 0  /* The parser will never leave spaces at the end */
+  while( i>0 && isspace(zOut[i-1]) ){ i--; }
+#endif
+  zOut[i] = 0;
+  c = zOut[0];
+  if( c=='\'' || c=='"' ){
+    for(i=1, j=0; ALWAYS(zOut[i]); i++){
+      zOut[j++] = zOut[i];
+      if( zOut[i]==c ){
+        if( zOut[i+1]==c ){
+          i++;
+        }else{
+          zOut[j-1] = 0;
+          break;
+        }
+      }
+    }
+  }
+  return zOut;
+}
+
+
+/*
+** xConnect/xCreate method for the spellfix1 module. Arguments are:
+**
+**   argv[0]   -> module name  ("spellfix1")
+**   argv[1]   -> database name
+**   argv[2]   -> table name
+**   argv[3].. -> optional arguments (i.e. "edit_cost_table" parameter)
+*/
+static int spellfix1Init(
+  int isCreate,
+  sqlite3 *db,
+  void *pAux,
+  int argc, const char *const*argv,
+  sqlite3_vtab **ppVTab,
+  char **pzErr
+){
+  spellfix1_vtab *pNew = 0;
+  /* const char *zModule = argv[0]; // not used */
+  const char *zDbName = argv[1];
+  const char *zTableName = argv[2];
+  int nDbName;
+  int rc = SQLITE_OK;
+  int i;
+
+  nDbName = (int)strlen(zDbName);
+  pNew = sqlite3_malloc64( sizeof(*pNew) + nDbName + 1);
+  if( pNew==0 ){
+    rc = SQLITE_NOMEM;
+  }else{
+    memset(pNew, 0, sizeof(*pNew));
+    pNew->zDbName = (char*)&pNew[1];
+    memcpy(pNew->zDbName, zDbName, nDbName+1);
+    pNew->zTableName = sqlite3_mprintf("%s", zTableName);
+    pNew->db = db;
+    if( pNew->zTableName==0 ){
+      rc = SQLITE_NOMEM;
+    }else{
+      sqlite3_vtab_config(db, SQLITE_VTAB_INNOCUOUS);
+      rc = sqlite3_declare_vtab(db, 
+           "CREATE TABLE x(word,rank,distance,langid, "
+           "score, matchlen, phonehash HIDDEN, "
+           "top HIDDEN, scope HIDDEN, srchcnt HIDDEN, "
+           "soundslike HIDDEN, command HIDDEN)"
+      );
+#define SPELLFIX_COL_WORD            0
+#define SPELLFIX_COL_RANK            1
+#define SPELLFIX_COL_DISTANCE        2
+#define SPELLFIX_COL_LANGID          3
+#define SPELLFIX_COL_SCORE           4
+#define SPELLFIX_COL_MATCHLEN        5
+#define SPELLFIX_COL_PHONEHASH       6
+#define SPELLFIX_COL_TOP             7
+#define SPELLFIX_COL_SCOPE           8
+#define SPELLFIX_COL_SRCHCNT         9
+#define SPELLFIX_COL_SOUNDSLIKE     10
+#define SPELLFIX_COL_COMMAND        11
+    }
+    if( rc==SQLITE_OK && isCreate ){
+      spellfix1DbExec(&rc, db,
+         "CREATE TABLE IF NOT EXISTS \"%w\".\"%w_vocab\"(\n"
+         "  id INTEGER PRIMARY KEY,\n"
+         "  rank INT,\n"
+         "  langid INT,\n"
+         "  word TEXT,\n"
+         "  k1 TEXT,\n"
+         "  k2 TEXT\n"
+         ");\n",
+         zDbName, zTableName
+      );
+      spellfix1DbExec(&rc, db,
+         "CREATE INDEX IF NOT EXISTS \"%w\".\"%w_vocab_index_langid_k2\" "
+            "ON \"%w_vocab\"(langid,k2);",
+         zDbName, zTableName, zTableName
+      );
+    }
+    for(i=3; rc==SQLITE_OK && i<argc; i++){
+      if( strncmp(argv[i],"edit_cost_table=",16)==0 && pNew->zCostTable==0 ){
+        pNew->zCostTable = spellfix1Dequote(&argv[i][16]);
+        if( pNew->zCostTable==0 ) rc = SQLITE_NOMEM;
+        continue;
+      }
+      *pzErr = sqlite3_mprintf("bad argument to spellfix1(): \"%s\"", argv[i]);
+      rc = SQLITE_ERROR; 
+    }
+  }
+
+  if( rc && pNew ){
+    *ppVTab = 0;
+    spellfix1Uninit(0, &pNew->base);
+  }else{
+    *ppVTab = (sqlite3_vtab *)pNew;
+  }
+  return rc;
+}
+
+/*
+** The xConnect and xCreate methods
+*/
+static int spellfix1Connect(
+  sqlite3 *db,
+  void *pAux,
+  int argc, const char *const*argv,
+  sqlite3_vtab **ppVTab,
+  char **pzErr
+){
+  return spellfix1Init(0, db, pAux, argc, argv, ppVTab, pzErr);
+}
+static int spellfix1Create(
+  sqlite3 *db,
+  void *pAux,
+  int argc, const char *const*argv,
+  sqlite3_vtab **ppVTab,
+  char **pzErr
+){
+  return spellfix1Init(1, db, pAux, argc, argv, ppVTab, pzErr);
+}
+
+/*
+** Clear all of the content from a cursor.
+*/
+static void spellfix1ResetCursor(spellfix1_cursor *pCur){
+  int i;
+  for(i=0; i<pCur->nRow; i++){
+    sqlite3_free(pCur->a[i].zWord);
+  }
+  pCur->nRow = 0;
+  pCur->iRow = 0;
+  pCur->nSearch = 0;
+  if( pCur->pFullScan ){
+    sqlite3_finalize(pCur->pFullScan);
+    pCur->pFullScan = 0;
+  }
+}
+
+/*
+** Resize the cursor to hold up to N rows of content
+*/
+static void spellfix1ResizeCursor(spellfix1_cursor *pCur, int N){
+  struct spellfix1_row *aNew;
+  assert( N>=pCur->nRow );
+  aNew = sqlite3_realloc64(pCur->a, sizeof(pCur->a[0])*N);
+  if( aNew==0 && N>0 ){
+    spellfix1ResetCursor(pCur);
+    sqlite3_free(pCur->a);
+    pCur->nAlloc = 0;
+    pCur->a = 0;
+  }else{
+    pCur->nAlloc = N;
+    pCur->a = aNew;
+  }
+}
+
+
+/*
+** Close a fuzzy-search cursor.
+*/
+static int spellfix1Close(sqlite3_vtab_cursor *cur){
+  spellfix1_cursor *pCur = (spellfix1_cursor *)cur;
+  spellfix1ResetCursor(pCur);
+  spellfix1ResizeCursor(pCur, 0);
+  sqlite3_free(pCur->zPattern);
+  sqlite3_free(pCur);
+  return SQLITE_OK;
+}
+
+#define SPELLFIX_IDXNUM_MATCH  0x01         /* word MATCH $str */
+#define SPELLFIX_IDXNUM_LANGID 0x02         /* langid == $langid */
+#define SPELLFIX_IDXNUM_TOP    0x04         /* top = $top */
+#define SPELLFIX_IDXNUM_SCOPE  0x08         /* scope = $scope */
+#define SPELLFIX_IDXNUM_DISTLT 0x10         /* distance < $distance */
+#define SPELLFIX_IDXNUM_DISTLE 0x20         /* distance <= $distance */
+#define SPELLFIX_IDXNUM_ROWID  0x40         /* rowid = $rowid */
+#define SPELLFIX_IDXNUM_DIST   (0x10|0x20)  /* DISTLT and DISTLE */
+
+/*
+**
+** The plan number is a bitmask of the SPELLFIX_IDXNUM_* values defined
+** above.
+**
+** filter.argv[*] values contains $str, $langid, $top, $scope and $rowid
+** if specified and in that order.
+*/
+static int spellfix1BestIndex(sqlite3_vtab *tab, sqlite3_index_info *pIdxInfo){
+  int iPlan = 0;
+  int iLangTerm = -1;
+  int iTopTerm = -1;
+  int iScopeTerm = -1;
+  int iDistTerm = -1;
+  int iRowidTerm = -1;
+  int i;
+  const struct sqlite3_index_constraint *pConstraint;
+  pConstraint = pIdxInfo->aConstraint;
+  for(i=0; i<pIdxInfo->nConstraint; i++, pConstraint++){
+    if( pConstraint->usable==0 ) continue;
+
+    /* Terms of the form:  word MATCH $str */
+    if( (iPlan & SPELLFIX_IDXNUM_MATCH)==0 
+     && pConstraint->iColumn==SPELLFIX_COL_WORD
+     && pConstraint->op==SQLITE_INDEX_CONSTRAINT_MATCH
+    ){
+      iPlan |= SPELLFIX_IDXNUM_MATCH;
+      pIdxInfo->aConstraintUsage[i].argvIndex = 1;
+      pIdxInfo->aConstraintUsage[i].omit = 1;
+    }
+
+    /* Terms of the form:  langid = $langid  */
+    if( (iPlan & SPELLFIX_IDXNUM_LANGID)==0
+     && pConstraint->iColumn==SPELLFIX_COL_LANGID
+     && pConstraint->op==SQLITE_INDEX_CONSTRAINT_EQ
+    ){
+      iPlan |= SPELLFIX_IDXNUM_LANGID;
+      iLangTerm = i;
+    }
+
+    /* Terms of the form:  top = $top */
+    if( (iPlan & SPELLFIX_IDXNUM_TOP)==0
+     && pConstraint->iColumn==SPELLFIX_COL_TOP
+     && pConstraint->op==SQLITE_INDEX_CONSTRAINT_EQ
+    ){
+      iPlan |= SPELLFIX_IDXNUM_TOP;
+      iTopTerm = i;
+    }
+
+    /* Terms of the form:  scope = $scope */
+    if( (iPlan & SPELLFIX_IDXNUM_SCOPE)==0
+     && pConstraint->iColumn==SPELLFIX_COL_SCOPE
+     && pConstraint->op==SQLITE_INDEX_CONSTRAINT_EQ
+    ){
+      iPlan |= SPELLFIX_IDXNUM_SCOPE;
+      iScopeTerm = i;
+    }
+
+    /* Terms of the form:  distance < $dist or distance <= $dist */
+    if( (iPlan & SPELLFIX_IDXNUM_DIST)==0
+     && pConstraint->iColumn==SPELLFIX_COL_DISTANCE
+     && (pConstraint->op==SQLITE_INDEX_CONSTRAINT_LT
+          || pConstraint->op==SQLITE_INDEX_CONSTRAINT_LE)
+    ){
+      if( pConstraint->op==SQLITE_INDEX_CONSTRAINT_LT ){
+        iPlan |= SPELLFIX_IDXNUM_DISTLT;
+      }else{
+        iPlan |= SPELLFIX_IDXNUM_DISTLE;
+      }
+      iDistTerm = i;
+    }
+
+    /* Terms of the form:  distance < $dist or distance <= $dist */
+    if( (iPlan & SPELLFIX_IDXNUM_ROWID)==0
+     && pConstraint->iColumn<0
+     && pConstraint->op==SQLITE_INDEX_CONSTRAINT_EQ
+    ){
+      iPlan |= SPELLFIX_IDXNUM_ROWID;
+      iRowidTerm = i;
+    }
+  }
+  if( iPlan&SPELLFIX_IDXNUM_MATCH ){
+    int idx = 2;
+    pIdxInfo->idxNum = iPlan;
+    if( pIdxInfo->nOrderBy==1
+     && pIdxInfo->aOrderBy[0].iColumn==SPELLFIX_COL_SCORE
+     && pIdxInfo->aOrderBy[0].desc==0
+    ){
+      pIdxInfo->orderByConsumed = 1;  /* Default order by iScore */
+    }
+    if( iPlan&SPELLFIX_IDXNUM_LANGID ){
+      pIdxInfo->aConstraintUsage[iLangTerm].argvIndex = idx++;
+      pIdxInfo->aConstraintUsage[iLangTerm].omit = 1;
+    }
+    if( iPlan&SPELLFIX_IDXNUM_TOP ){
+      pIdxInfo->aConstraintUsage[iTopTerm].argvIndex = idx++;
+      pIdxInfo->aConstraintUsage[iTopTerm].omit = 1;
+    }
+    if( iPlan&SPELLFIX_IDXNUM_SCOPE ){
+      pIdxInfo->aConstraintUsage[iScopeTerm].argvIndex = idx++;
+      pIdxInfo->aConstraintUsage[iScopeTerm].omit = 1;
+    }
+    if( iPlan&SPELLFIX_IDXNUM_DIST ){
+      pIdxInfo->aConstraintUsage[iDistTerm].argvIndex = idx++;
+      pIdxInfo->aConstraintUsage[iDistTerm].omit = 1;
+    }
+    pIdxInfo->estimatedCost = 1e5;
+  }else if( (iPlan & SPELLFIX_IDXNUM_ROWID) ){
+    pIdxInfo->idxNum = SPELLFIX_IDXNUM_ROWID;
+    pIdxInfo->aConstraintUsage[iRowidTerm].argvIndex = 1;
+    pIdxInfo->aConstraintUsage[iRowidTerm].omit = 1;
+    pIdxInfo->estimatedCost = 5;
+  }else{
+    pIdxInfo->idxNum = 0;
+    pIdxInfo->estimatedCost = 1e50;
+  }
+  return SQLITE_OK;
+}
+
+/*
+** Open a new fuzzy-search cursor.
+*/
+static int spellfix1Open(sqlite3_vtab *pVTab, sqlite3_vtab_cursor **ppCursor){
+  spellfix1_vtab *p = (spellfix1_vtab*)pVTab;
+  spellfix1_cursor *pCur;
+  pCur = sqlite3_malloc64( sizeof(*pCur) );
+  if( pCur==0 ) return SQLITE_NOMEM;
+  memset(pCur, 0, sizeof(*pCur));
+  pCur->pVTab = p;
+  *ppCursor = &pCur->base;
+  return SQLITE_OK;
+}
+
+/*
+** Adjust a distance measurement by the words rank in order to show
+** preference to common words.
+*/
+static int spellfix1Score(int iDistance, int iRank){
+  int iLog2;
+  for(iLog2=0; iRank>0; iLog2++, iRank>>=1){}
+  return iDistance + 32 - iLog2;
+}
+
+/*
+** Compare two spellfix1_row objects for sorting purposes in qsort() such
+** that they sort in order of increasing distance.
+*/
+static int SQLITE_CDECL spellfix1RowCompare(const void *A, const void *B){
+  const struct spellfix1_row *a = (const struct spellfix1_row*)A;
+  const struct spellfix1_row *b = (const struct spellfix1_row*)B;
+  return a->iScore - b->iScore;
+}
+
+/*
+** A structure used to pass information from spellfix1FilterForMatch()
+** into spellfix1RunQuery().
+*/
+typedef struct MatchQuery {
+  spellfix1_cursor *pCur;          /* The cursor being queried */
+  sqlite3_stmt *pStmt;             /* shadow table query statment */
+  char zHash[SPELLFIX_MX_HASH];    /* The current phonehash for zPattern */
+  const char *zPattern;            /* Transliterated input string */
+  int nPattern;                    /* Length of zPattern */
+  EditDist3FromString *pMatchStr3; /* Original unicode string */
+  EditDist3Config *pConfig3;       /* Edit-distance cost coefficients */
+  const EditDist3Lang *pLang;      /* The selected language coefficients */
+  int iLang;                       /* The language id */
+  int iScope;                      /* Default scope */
+  int iMaxDist;                    /* Maximum allowed edit distance, or -1 */
+  int rc;                          /* Error code */
+  int nRun;                  /* Number of prior runs for the same zPattern */
+  char azPrior[SPELLFIX_MX_RUN][SPELLFIX_MX_HASH];  /* Prior hashes */
+} MatchQuery;
+
+/*
+** Run a query looking for the best matches against zPattern using
+** zHash as the character class seed hash.
+*/
+static void spellfix1RunQuery(MatchQuery *p, const char *zQuery, int nQuery){
+  const char *zK1;
+  const char *zWord;
+  int iDist;
+  int iRank;
+  int iScore;
+  int iWorst = 0;
+  int idx;
+  int idxWorst = -1;
+  int i;
+  int iScope = p->iScope;
+  spellfix1_cursor *pCur = p->pCur;
+  sqlite3_stmt *pStmt = p->pStmt;
+  char zHash1[SPELLFIX_MX_HASH];
+  char zHash2[SPELLFIX_MX_HASH];
+  char *zClass;
+  int nClass;
+  int rc;
+
+  if( pCur->a==0 || p->rc ) return;   /* Prior memory allocation failure */
+  zClass = (char*)phoneticHash((unsigned char*)zQuery, nQuery);
+  if( zClass==0 ){
+    p->rc = SQLITE_NOMEM;
+    return;
+  }
+  nClass = (int)strlen(zClass);
+  if( nClass>SPELLFIX_MX_HASH-2 ){
+    nClass = SPELLFIX_MX_HASH-2;
+    zClass[nClass] = 0;
+  }
+  if( nClass<=iScope ){
+    if( nClass>2 ){
+      iScope = nClass-1;
+    }else{
+      iScope = nClass;
+    }
+  }
+  memcpy(zHash1, zClass, iScope);
+  sqlite3_free(zClass);
+  zHash1[iScope] = 0;
+  memcpy(zHash2, zHash1, iScope);
+  zHash2[iScope] = 'Z';
+  zHash2[iScope+1] = 0;
+#if SPELLFIX_MX_RUN>1
+  for(i=0; i<p->nRun; i++){
+    if( strcmp(p->azPrior[i], zHash1)==0 ) return;
+  }
+#endif
+  assert( p->nRun<SPELLFIX_MX_RUN );
+  memcpy(p->azPrior[p->nRun++], zHash1, iScope+1);
+  if( sqlite3_bind_text(pStmt, 1, zHash1, -1, SQLITE_STATIC)==SQLITE_NOMEM
+   || sqlite3_bind_text(pStmt, 2, zHash2, -1, SQLITE_STATIC)==SQLITE_NOMEM
+  ){
+    p->rc = SQLITE_NOMEM;
+    return;
+  }
+#if SPELLFIX_MX_RUN>1
+  for(i=0; i<pCur->nRow; i++){
+    if( pCur->a[i].iScore>iWorst ){
+      iWorst = pCur->a[i].iScore;
+      idxWorst = i;
+    }
+  }
+#endif
+  while( sqlite3_step(pStmt)==SQLITE_ROW ){
+    int iMatchlen = -1;
+    iRank = sqlite3_column_int(pStmt, 2);
+    if( p->pMatchStr3 ){
+      int nWord = sqlite3_column_bytes(pStmt, 1);
+      zWord = (const char*)sqlite3_column_text(pStmt, 1);
+      iDist = editDist3Core(p->pMatchStr3, zWord, nWord, p->pLang, &iMatchlen);
+    }else{
+      zK1 = (const char*)sqlite3_column_text(pStmt, 3);
+      if( zK1==0 ) continue;
+      iDist = editdist1(p->zPattern, zK1, 0);
+    }
+    if( iDist<0 ){
+      p->rc = SQLITE_NOMEM;
+      break;
+    }
+    pCur->nSearch++;
+    
+    /* If there is a "distance < $dist" or "distance <= $dist" constraint,
+    ** check if this row meets it. If not, jump back up to the top of the
+    ** loop to process the next row. Otherwise, if the row does match the
+    ** distance constraint, check if the pCur->a[] array is already full.
+    ** If it is and no explicit "top = ?" constraint was present in the
+    ** query, grow the array to ensure there is room for the new entry. */
+    assert( (p->iMaxDist>=0)==((pCur->idxNum & SPELLFIX_IDXNUM_DIST) ? 1 : 0) );
+    if( p->iMaxDist>=0 ){
+      if( iDist>p->iMaxDist ) continue;
+      if( pCur->nRow>=pCur->nAlloc && (pCur->idxNum & SPELLFIX_IDXNUM_TOP)==0 ){
+        spellfix1ResizeCursor(pCur, pCur->nAlloc*2 + 10);
+        if( pCur->a==0 ) break;
+      }
+    }
+
+    iScore = spellfix1Score(iDist,iRank);
+    if( pCur->nRow<pCur->nAlloc ){
+      idx = pCur->nRow;
+    }else if( iScore<iWorst ){
+      idx = idxWorst;
+      sqlite3_free(pCur->a[idx].zWord);
+    }else{
+      continue;
+    }
+
+    pCur->a[idx].zWord = sqlite3_mprintf("%s", sqlite3_column_text(pStmt, 1));
+    if( pCur->a[idx].zWord==0 ){
+      p->rc = SQLITE_NOMEM;
+      break;
+    }
+    pCur->a[idx].iRowid = sqlite3_column_int64(pStmt, 0);
+    pCur->a[idx].iRank = iRank;
+    pCur->a[idx].iDistance = iDist;
+    pCur->a[idx].iScore = iScore;
+    pCur->a[idx].iMatchlen = iMatchlen;
+    memcpy(pCur->a[idx].zHash, zHash1, iScope+1);
+    if( pCur->nRow<pCur->nAlloc ) pCur->nRow++;
+    if( pCur->nRow==pCur->nAlloc ){
+      iWorst = pCur->a[0].iScore;
+      idxWorst = 0;
+      for(i=1; i<pCur->nRow; i++){
+        iScore = pCur->a[i].iScore;
+        if( iWorst<iScore ){
+          iWorst = iScore;
+          idxWorst = i;
+        }
+      }
+    }
+  }
+  rc = sqlite3_reset(pStmt);
+  if( rc ) p->rc = rc;
+}
+
+/*
+** This version of the xFilter method work if the MATCH term is present
+** and we are doing a scan.
+*/
+static int spellfix1FilterForMatch(
+  spellfix1_cursor *pCur,
+  int argc,
+  sqlite3_value **argv
+){
+  int idxNum = pCur->idxNum;
+  const unsigned char *zMatchThis;   /* RHS of the MATCH operator */
+  EditDist3FromString *pMatchStr3 = 0; /* zMatchThis as an editdist string */
+  char *zPattern;                    /* Transliteration of zMatchThis */
+  int nPattern;                      /* Length of zPattern */
+  int iLimit = 20;                   /* Max number of rows of output */
+  int iScope = 3;                    /* Use this many characters of zClass */
+  int iLang = 0;                     /* Language code */
+  char *zSql;                        /* SQL of shadow table query */
+  sqlite3_stmt *pStmt = 0;           /* Shadow table query */
+  int rc;                            /* Result code */
+  int idx = 1;                       /* Next available filter parameter */
+  spellfix1_vtab *p = pCur->pVTab;   /* The virtual table that owns pCur */
+  MatchQuery x;                      /* For passing info to RunQuery() */
+
+  /* Load the cost table if we have not already done so */
+  if( p->zCostTable!=0 && p->pConfig3==0 ){
+    p->pConfig3 = sqlite3_malloc64( sizeof(p->pConfig3[0]) );
+    if( p->pConfig3==0 ) return SQLITE_NOMEM;
+    memset(p->pConfig3, 0, sizeof(p->pConfig3[0]));
+    rc = editDist3ConfigLoad(p->pConfig3, p->db, p->zCostTable);
+    if( rc ) return rc;
+  }
+  memset(&x, 0, sizeof(x));
+  x.iScope = 3;  /* Default scope if none specified by "WHERE scope=N" */
+  x.iMaxDist = -1;   /* Maximum allowed edit distance */
+
+  if( idxNum&2 ){
+    iLang = sqlite3_value_int(argv[idx++]);
+  }
+  if( idxNum&4 ){
+    iLimit = sqlite3_value_int(argv[idx++]);
+    if( iLimit<1 ) iLimit = 1;
+  }
+  if( idxNum&8 ){
+    x.iScope = sqlite3_value_int(argv[idx++]);
+    if( x.iScope<1 ) x.iScope = 1;
+    if( x.iScope>SPELLFIX_MX_HASH-2 ) x.iScope = SPELLFIX_MX_HASH-2;
+  }
+  if( idxNum&(16|32) ){
+    x.iMaxDist = sqlite3_value_int(argv[idx++]);
+    if( idxNum&16 ) x.iMaxDist--;
+    if( x.iMaxDist<0 ) x.iMaxDist = 0;
+  }
+  spellfix1ResetCursor(pCur);
+  spellfix1ResizeCursor(pCur, iLimit);
+  zMatchThis = sqlite3_value_text(argv[0]);
+  if( zMatchThis==0 ) return SQLITE_OK;
+  if( p->pConfig3 ){
+    x.pLang = editDist3FindLang(p->pConfig3, iLang);
+    pMatchStr3 = editDist3FromStringNew(x.pLang, (const char*)zMatchThis, -1);
+    if( pMatchStr3==0 ){
+      x.rc = SQLITE_NOMEM;
+      goto filter_exit;
+    }
+  }else{
+    x.pLang = 0;
+  }
+  zPattern = (char*)transliterate(zMatchThis, sqlite3_value_bytes(argv[0]));
+  sqlite3_free(pCur->zPattern);
+  pCur->zPattern = zPattern;
+  if( zPattern==0 ){
+    x.rc = SQLITE_NOMEM;
+    goto filter_exit;
+  }
+  nPattern = (int)strlen(zPattern);
+  if( zPattern[nPattern-1]=='*' ) nPattern--;
+  zSql = sqlite3_mprintf(
+     "SELECT id, word, rank, coalesce(k1,word)"
+     "  FROM \"%w\".\"%w_vocab\""
+     " WHERE langid=%d AND k2>=?1 AND k2<?2",
+     p->zDbName, p->zTableName, iLang
+  );
+  if( zSql==0 ){
+    x.rc = SQLITE_NOMEM;
+    pStmt = 0;
+    goto filter_exit;
+  }
+  rc = sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0);
+  sqlite3_free(zSql);
+  pCur->iLang = iLang;
+  x.pCur = pCur;
+  x.pStmt = pStmt;
+  x.zPattern = zPattern;
+  x.nPattern = nPattern;
+  x.pMatchStr3 = pMatchStr3;
+  x.iLang = iLang;
+  x.rc = rc;
+  x.pConfig3 = p->pConfig3;
+  if( x.rc==SQLITE_OK ){
+    spellfix1RunQuery(&x, zPattern, nPattern);
+  }
+
+  if( pCur->a ){
+    qsort(pCur->a, pCur->nRow, sizeof(pCur->a[0]), spellfix1RowCompare);
+    pCur->iTop = iLimit;
+    pCur->iScope = iScope;
+  }else{
+    x.rc = SQLITE_NOMEM;
+  }
+
+filter_exit:
+  sqlite3_finalize(pStmt);
+  editDist3FromStringDelete(pMatchStr3);
+  return x.rc;
+}
+
+/*
+** This version of xFilter handles a full-table scan case
+*/
+static int spellfix1FilterForFullScan(
+  spellfix1_cursor *pCur,
+  int argc,
+  sqlite3_value **argv
+){
+  int rc = SQLITE_OK;
+  int idxNum = pCur->idxNum;
+  char *zSql;
+  spellfix1_vtab *pVTab = pCur->pVTab;
+  spellfix1ResetCursor(pCur);
+  assert( idxNum==0 || idxNum==64 );
+  zSql = sqlite3_mprintf(
+     "SELECT word, rank, NULL, langid, id FROM \"%w\".\"%w_vocab\"%s",
+     pVTab->zDbName, pVTab->zTableName,
+     ((idxNum & 64) ? " WHERE rowid=?" : "")
+  );
+  if( zSql==0 ) return SQLITE_NOMEM;
+  rc = sqlite3_prepare_v2(pVTab->db, zSql, -1, &pCur->pFullScan, 0);
+  sqlite3_free(zSql);
+  if( rc==SQLITE_OK && (idxNum & 64) ){
+    assert( argc==1 );
+    rc = sqlite3_bind_value(pCur->pFullScan, 1, argv[0]);
+  }
+  pCur->nRow = pCur->iRow = 0;
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_step(pCur->pFullScan);
+    if( rc==SQLITE_ROW ){ pCur->iRow = -1; rc = SQLITE_OK; }
+    if( rc==SQLITE_DONE ){ rc = SQLITE_OK; }
+  }else{
+    pCur->iRow = 0;
+  }
+  return rc;
+}
+
+
+/*
+** Called to "rewind" a cursor back to the beginning so that
+** it starts its output over again.  Always called at least once
+** prior to any spellfix1Column, spellfix1Rowid, or spellfix1Eof call.
+*/
+static int spellfix1Filter(
+  sqlite3_vtab_cursor *cur, 
+  int idxNum, const char *idxStr,
+  int argc, sqlite3_value **argv
+){
+  spellfix1_cursor *pCur = (spellfix1_cursor *)cur;
+  int rc;
+  pCur->idxNum = idxNum;
+  if( idxNum & 1 ){
+    rc = spellfix1FilterForMatch(pCur, argc, argv);
+  }else{
+    rc = spellfix1FilterForFullScan(pCur, argc, argv);
+  }
+  return rc;
+}
+
+
+/*
+** Advance a cursor to its next row of output
+*/
+static int spellfix1Next(sqlite3_vtab_cursor *cur){
+  spellfix1_cursor *pCur = (spellfix1_cursor *)cur;
+  int rc = SQLITE_OK;
+  if( pCur->iRow < pCur->nRow ){
+    if( pCur->pFullScan ){
+      rc = sqlite3_step(pCur->pFullScan);
+      if( rc!=SQLITE_ROW ) pCur->iRow = pCur->nRow;
+      if( rc==SQLITE_ROW || rc==SQLITE_DONE ) rc = SQLITE_OK;
+    }else{
+      pCur->iRow++;
+    }
+  }
+  return rc;
+}
+
+/*
+** Return TRUE if we are at the end-of-file
+*/
+static int spellfix1Eof(sqlite3_vtab_cursor *cur){
+  spellfix1_cursor *pCur = (spellfix1_cursor *)cur;
+  return pCur->iRow>=pCur->nRow;
+}
+
+/*
+** Return columns from the current row.
+*/
+static int spellfix1Column(
+  sqlite3_vtab_cursor *cur,
+  sqlite3_context *ctx,
+  int i
+){
+  spellfix1_cursor *pCur = (spellfix1_cursor*)cur;
+  if( pCur->pFullScan ){
+    if( i<=SPELLFIX_COL_LANGID ){
+      sqlite3_result_value(ctx, sqlite3_column_value(pCur->pFullScan, i));
+    }else{
+      sqlite3_result_null(ctx);
+    }
+    return SQLITE_OK;
+  }
+  switch( i ){
+    case SPELLFIX_COL_WORD: {
+      sqlite3_result_text(ctx, pCur->a[pCur->iRow].zWord, -1, SQLITE_STATIC);
+      break;
+    }
+    case SPELLFIX_COL_RANK: {
+      sqlite3_result_int(ctx, pCur->a[pCur->iRow].iRank);
+      break;
+    }
+    case SPELLFIX_COL_DISTANCE: {
+      sqlite3_result_int(ctx, pCur->a[pCur->iRow].iDistance);
+      break;
+    }
+    case SPELLFIX_COL_LANGID: {
+      sqlite3_result_int(ctx, pCur->iLang);
+      break;
+    }
+    case SPELLFIX_COL_SCORE: {
+      sqlite3_result_int(ctx, pCur->a[pCur->iRow].iScore);
+      break;
+    }
+    case SPELLFIX_COL_MATCHLEN: {
+      int iMatchlen = pCur->a[pCur->iRow].iMatchlen;
+      if( iMatchlen<0 ){
+        int nPattern = (int)strlen(pCur->zPattern);
+        char *zWord = pCur->a[pCur->iRow].zWord;
+        int nWord = (int)strlen(zWord);
+
+        if( nPattern>0 && pCur->zPattern[nPattern-1]=='*' ){
+          char *zTranslit;
+          int res;
+          zTranslit = (char *)transliterate((unsigned char *)zWord, nWord);
+          if( !zTranslit ) return SQLITE_NOMEM;
+          res = editdist1(pCur->zPattern, zTranslit, &iMatchlen);
+          sqlite3_free(zTranslit);
+          if( res<0 ) return SQLITE_NOMEM;
+          iMatchlen = translen_to_charlen(zWord, nWord, iMatchlen);
+        }else{
+          iMatchlen = utf8Charlen(zWord, nWord);
+        }
+      }
+
+      sqlite3_result_int(ctx, iMatchlen);
+      break;
+    }
+    case SPELLFIX_COL_PHONEHASH: {
+      sqlite3_result_text(ctx, pCur->a[pCur->iRow].zHash, -1, SQLITE_STATIC);
+      break;
+    }
+    case SPELLFIX_COL_TOP: {
+      sqlite3_result_int(ctx, pCur->iTop);
+      break;
+    }
+    case SPELLFIX_COL_SCOPE: {
+      sqlite3_result_int(ctx, pCur->iScope);
+      break;
+    }
+    case SPELLFIX_COL_SRCHCNT: {
+      sqlite3_result_int(ctx, pCur->nSearch);
+      break;
+    }
+    default: {
+      sqlite3_result_null(ctx);
+      break;
+    }
+  }
+  return SQLITE_OK;
+}
+
+/*
+** The rowid.
+*/
+static int spellfix1Rowid(sqlite3_vtab_cursor *cur, sqlite_int64 *pRowid){
+  spellfix1_cursor *pCur = (spellfix1_cursor*)cur;
+  if( pCur->pFullScan ){
+    *pRowid = sqlite3_column_int64(pCur->pFullScan, 4);
+  }else{
+    *pRowid = pCur->a[pCur->iRow].iRowid;
+  }
+  return SQLITE_OK;
+}
+
+/*
+** This function is called by the xUpdate() method. It returns a string
+** containing the conflict mode that xUpdate() should use for the current
+** operation. One of: "ROLLBACK", "IGNORE", "ABORT" or "REPLACE".
+*/
+static const char *spellfix1GetConflict(sqlite3 *db){
+  static const char *azConflict[] = {
+    /* Note: Instead of "FAIL" - "ABORT". */
+    "ROLLBACK", "IGNORE", "ABORT", "ABORT", "REPLACE"
+  };
+  int eConflict = sqlite3_vtab_on_conflict(db);
+
+  assert( eConflict==SQLITE_ROLLBACK || eConflict==SQLITE_IGNORE
+       || eConflict==SQLITE_FAIL || eConflict==SQLITE_ABORT
+       || eConflict==SQLITE_REPLACE
+  );
+  assert( SQLITE_ROLLBACK==1 );
+  assert( SQLITE_IGNORE==2 );
+  assert( SQLITE_FAIL==3 );
+  assert( SQLITE_ABORT==4 );
+  assert( SQLITE_REPLACE==5 );
+
+  return azConflict[eConflict-1];
+}
+
+/*
+** The xUpdate() method.
+*/
+static int spellfix1Update(
+  sqlite3_vtab *pVTab,
+  int argc,
+  sqlite3_value **argv,
+  sqlite_int64 *pRowid
+){
+  int rc = SQLITE_OK;
+  sqlite3_int64 rowid, newRowid;
+  spellfix1_vtab *p = (spellfix1_vtab*)pVTab;
+  sqlite3 *db = p->db;
+
+  if( argc==1 ){
+    /* A delete operation on the rowid given by argv[0] */
+    rowid = *pRowid = sqlite3_value_int64(argv[0]);
+    spellfix1DbExec(&rc, db, "DELETE FROM \"%w\".\"%w_vocab\" "
+                           " WHERE id=%lld",
+                  p->zDbName, p->zTableName, rowid);
+  }else{
+    const unsigned char *zWord = sqlite3_value_text(argv[SPELLFIX_COL_WORD+2]);
+    int nWord = sqlite3_value_bytes(argv[SPELLFIX_COL_WORD+2]);
+    int iLang = sqlite3_value_int(argv[SPELLFIX_COL_LANGID+2]);
+    int iRank = sqlite3_value_int(argv[SPELLFIX_COL_RANK+2]);
+    const unsigned char *zSoundslike =
+           sqlite3_value_text(argv[SPELLFIX_COL_SOUNDSLIKE+2]);
+    int nSoundslike = sqlite3_value_bytes(argv[SPELLFIX_COL_SOUNDSLIKE+2]);
+    char *zK1, *zK2;
+    int i;
+    char c;
+    const char *zConflict = spellfix1GetConflict(db);
+
+    if( zWord==0 ){
+      /* Inserts of the form:  INSERT INTO table(command) VALUES('xyzzy');
+      ** cause zWord to be NULL, so we look at the "command" column to see
+      ** what special actions to take */
+      const char *zCmd = 
+         (const char*)sqlite3_value_text(argv[SPELLFIX_COL_COMMAND+2]);
+      if( zCmd==0 ){
+        pVTab->zErrMsg = sqlite3_mprintf("NOT NULL constraint failed: %s.word",
+                                         p->zTableName);
+        return SQLITE_CONSTRAINT_NOTNULL;
+      }
+      if( strcmp(zCmd,"reset")==0 ){
+        /* Reset the  edit cost table (if there is one). */
+        editDist3ConfigDelete(p->pConfig3);
+        p->pConfig3 = 0;
+        return SQLITE_OK;
+      }
+      if( strncmp(zCmd,"edit_cost_table=",16)==0 ){
+        editDist3ConfigDelete(p->pConfig3);
+        p->pConfig3 = 0;
+        sqlite3_free(p->zCostTable);
+        p->zCostTable = spellfix1Dequote(zCmd+16);
+        if( p->zCostTable==0 ) return SQLITE_NOMEM;
+        if( p->zCostTable[0]==0 || sqlite3_stricmp(p->zCostTable,"null")==0 ){
+          sqlite3_free(p->zCostTable);
+          p->zCostTable = 0;
+        }
+        return SQLITE_OK;
+      }
+      pVTab->zErrMsg = sqlite3_mprintf("unknown value for %s.command: \"%w\"",
+                                       p->zTableName, zCmd);
+      return SQLITE_ERROR;
+    }
+    if( iRank<1 ) iRank = 1;
+    if( zSoundslike ){
+      zK1 = (char*)transliterate(zSoundslike, nSoundslike);
+    }else{
+      zK1 = (char*)transliterate(zWord, nWord);
+    }
+    if( zK1==0 ) return SQLITE_NOMEM;
+    for(i=0; (c = zK1[i])!=0; i++){
+       if( c>='A' && c<='Z' ) zK1[i] += 'a' - 'A';
+    }
+    zK2 = (char*)phoneticHash((const unsigned char*)zK1, i);
+    if( zK2==0 ){
+      sqlite3_free(zK1);
+      return SQLITE_NOMEM;
+    }
+    if( sqlite3_value_type(argv[0])==SQLITE_NULL ){
+      if( sqlite3_value_type(argv[1])==SQLITE_NULL ){
+        spellfix1DbExec(&rc, db,
+               "INSERT INTO \"%w\".\"%w_vocab\"(rank,langid,word,k1,k2) "
+               "VALUES(%d,%d,%Q,nullif(%Q,%Q),%Q)",
+               p->zDbName, p->zTableName,
+               iRank, iLang, zWord, zK1, zWord, zK2
+        );
+      }else{
+        newRowid = sqlite3_value_int64(argv[1]);
+        spellfix1DbExec(&rc, db,
+            "INSERT OR %s INTO \"%w\".\"%w_vocab\"(id,rank,langid,word,k1,k2) "
+            "VALUES(%lld,%d,%d,%Q,nullif(%Q,%Q),%Q)",
+            zConflict, p->zDbName, p->zTableName,
+            newRowid, iRank, iLang, zWord, zK1, zWord, zK2
+        );
+      }
+      *pRowid = sqlite3_last_insert_rowid(db);
+    }else{
+      rowid = sqlite3_value_int64(argv[0]);
+      newRowid = *pRowid = sqlite3_value_int64(argv[1]);
+      spellfix1DbExec(&rc, db,
+             "UPDATE OR %s \"%w\".\"%w_vocab\" SET id=%lld, rank=%d, langid=%d,"
+             " word=%Q, k1=nullif(%Q,%Q), k2=%Q WHERE id=%lld",
+             zConflict, p->zDbName, p->zTableName, newRowid, iRank, iLang,
+             zWord, zK1, zWord, zK2, rowid
+      );
+    }
+    sqlite3_free(zK1);
+    sqlite3_free(zK2);
+  }
+  return rc;
+}
+
+/*
+** Rename the spellfix1 table.
+*/
+static int spellfix1Rename(sqlite3_vtab *pVTab, const char *zNew){
+  spellfix1_vtab *p = (spellfix1_vtab*)pVTab;
+  sqlite3 *db = p->db;
+  int rc = SQLITE_OK;
+  char *zNewName = sqlite3_mprintf("%s", zNew);
+  if( zNewName==0 ){
+    return SQLITE_NOMEM;
+  }
+  spellfix1DbExec(&rc, db, 
+     "ALTER TABLE \"%w\".\"%w_vocab\" RENAME TO \"%w_vocab\"",
+     p->zDbName, p->zTableName, zNewName
+  );
+  if( rc==SQLITE_OK ){
+    sqlite3_free(p->zTableName);
+    p->zTableName = zNewName;
+  }else{
+    sqlite3_free(zNewName);
+  }
+  return rc;
+}
+
+
+/*
+** A virtual table module that provides fuzzy search.
+*/
+static sqlite3_module spellfix1Module = {
+  0,                       /* iVersion */
+  spellfix1Create,         /* xCreate - handle CREATE VIRTUAL TABLE */
+  spellfix1Connect,        /* xConnect - reconnected to an existing table */
+  spellfix1BestIndex,      /* xBestIndex - figure out how to do a query */
+  spellfix1Disconnect,     /* xDisconnect - close a connection */
+  spellfix1Destroy,        /* xDestroy - handle DROP TABLE */
+  spellfix1Open,           /* xOpen - open a cursor */
+  spellfix1Close,          /* xClose - close a cursor */
+  spellfix1Filter,         /* xFilter - configure scan constraints */
+  spellfix1Next,           /* xNext - advance a cursor */
+  spellfix1Eof,            /* xEof - check for end of scan */
+  spellfix1Column,         /* xColumn - read data */
+  spellfix1Rowid,          /* xRowid - read data */
+  spellfix1Update,         /* xUpdate */
+  0,                       /* xBegin */
+  0,                       /* xSync */
+  0,                       /* xCommit */
+  0,                       /* xRollback */
+  0,                       /* xFindMethod */
+  spellfix1Rename,         /* xRename */
+  0,                       /* xSavepoint */
+  0,                       /* xRelease */
+  0,                       /* xRollbackTo */
+  0,                       /* xShadowName */
+  0                        /* xIntegrity */
+};
+
+/*
+** Register the various functions and the virtual table.
+*/
+static int spellfix1Register(sqlite3 *db){
+  int rc = SQLITE_OK;
+  unsigned int i;
+  rc = sqlite3_create_function(db, "spellfix1_translit", 1,
+                               SQLITE_UTF8|SQLITE_DETERMINISTIC, 0,
+                                transliterateSqlFunc, 0, 0);
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_function(db, "spellfix1_editdist", 2,
+                                 SQLITE_UTF8|SQLITE_DETERMINISTIC, 0,
+                                  editdistSqlFunc, 0, 0);
+  }
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_function(db, "spellfix1_phonehash", 1,
+                                 SQLITE_UTF8|SQLITE_DETERMINISTIC, 0,
+                                  phoneticHashSqlFunc, 0, 0);
+  }
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_function(db, "spellfix1_scriptcode", 1,
+                                  SQLITE_UTF8|SQLITE_DETERMINISTIC, 0,
+                                  scriptCodeSqlFunc, 0, 0);
+  }
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_module(db, "spellfix1", &spellfix1Module, 0);
+  }
+  if( rc==SQLITE_OK ){
+    rc = editDist3Install(db);
+  }
+
+  /* Verify sanity of the translit[] table */
+  for(i=0; i<sizeof(translit)/sizeof(translit[0])-1; i++){
+    assert( translit[i].cFrom<translit[i+1].cFrom );
+  }
+
+  return rc;
+}
+
+#endif /* SQLITE_OMIT_VIRTUALTABLE */
+
+/*
+** Extension load function.
+*/
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_spellfix_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  SQLITE_EXTENSION_INIT2(pApi);
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+  return spellfix1Register(db);
+#endif
+  return SQLITE_OK;
+}
diff --git a/ext/misc/sqlar.c b/ext/misc/sqlar.c
new file mode 100644
index 0000000000000000000000000000000000000000..9f726f0b89d0ee4ded323abcf210aac3451f6d1c
--- /dev/null
+++ b/ext/misc/sqlar.c
@@ -0,0 +1,126 @@
+/*
+** 2017-12-17
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** Utility functions sqlar_compress() and sqlar_uncompress(). Useful
+** for working with sqlar archives and used by the shell tool's built-in
+** sqlar support.
+*/
+#include "sqlite3ext.h"
+SQLITE_EXTENSION_INIT1
+#include <zlib.h>
+#include <assert.h>
+
+/*
+** Implementation of the "sqlar_compress(X)" SQL function.
+**
+** If the type of X is SQLITE_BLOB, and compressing that blob using
+** zlib utility function compress() yields a smaller blob, return the
+** compressed blob. Otherwise, return a copy of X.
+**
+** SQLar uses the "zlib format" for compressed content.  The zlib format
+** contains a two-byte identification header and a four-byte checksum at
+** the end.  This is different from ZIP which uses the raw deflate format.
+**
+** Future enhancements to SQLar might add support for new compression formats.
+** If so, those new formats will be identified by alternative headers in the
+** compressed data.
+*/
+static void sqlarCompressFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  assert( argc==1 );
+  if( sqlite3_value_type(argv[0])==SQLITE_BLOB ){
+    const Bytef *pData = sqlite3_value_blob(argv[0]);
+    uLong nData = sqlite3_value_bytes(argv[0]);
+    uLongf nOut = compressBound(nData);
+    Bytef *pOut;
+
+    pOut = (Bytef*)sqlite3_malloc(nOut);
+    if( pOut==0 ){
+      sqlite3_result_error_nomem(context);
+      return;
+    }else{
+      if( Z_OK!=compress(pOut, &nOut, pData, nData) ){
+        sqlite3_result_error(context, "error in compress()", -1);
+      }else if( nOut<nData ){
+        sqlite3_result_blob(context, pOut, nOut, SQLITE_TRANSIENT);
+      }else{
+        sqlite3_result_value(context, argv[0]);
+      }
+      sqlite3_free(pOut);
+    }
+  }else{
+    sqlite3_result_value(context, argv[0]);
+  }
+}
+
+/*
+** Implementation of the "sqlar_uncompress(X,SZ)" SQL function
+**
+** Parameter SZ is interpreted as an integer. If it is less than or
+** equal to zero, then this function returns a copy of X. Or, if
+** SZ is equal to the size of X when interpreted as a blob, also
+** return a copy of X. Otherwise, decompress blob X using zlib
+** utility function uncompress() and return the results (another
+** blob).
+*/
+static void sqlarUncompressFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  uLong nData;
+  sqlite3_int64 sz;
+
+  assert( argc==2 );
+  sz = sqlite3_value_int(argv[1]);
+
+  if( sz<=0 || sz==(nData = sqlite3_value_bytes(argv[0])) ){
+    sqlite3_result_value(context, argv[0]);
+  }else{
+    uLongf szf = sz;
+    const Bytef *pData= sqlite3_value_blob(argv[0]);
+    Bytef *pOut = sqlite3_malloc(sz);
+    if( pOut==0 ){
+      sqlite3_result_error_nomem(context);
+    }else if( Z_OK!=uncompress(pOut, &szf, pData, nData) ){
+      sqlite3_result_error(context, "error in uncompress()", -1);
+    }else{
+      sqlite3_result_blob(context, pOut, szf, SQLITE_TRANSIENT);
+    }
+    sqlite3_free(pOut);
+  }
+}
+
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_sqlar_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  int rc = SQLITE_OK;
+  SQLITE_EXTENSION_INIT2(pApi);
+  (void)pzErrMsg;  /* Unused parameter */
+  rc = sqlite3_create_function(db, "sqlar_compress", 1, 
+                               SQLITE_UTF8|SQLITE_INNOCUOUS, 0,
+                               sqlarCompressFunc, 0, 0);
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_function(db, "sqlar_uncompress", 2,
+                                 SQLITE_UTF8|SQLITE_INNOCUOUS, 0,
+                                 sqlarUncompressFunc, 0, 0);
+  }
+  return rc;
+}
diff --git a/ext/misc/sqlite3_stdio.c b/ext/misc/sqlite3_stdio.c
new file mode 100644
index 0000000000000000000000000000000000000000..97c3551da251911602c6622cc2a4b75bcfdd60e7
--- /dev/null
+++ b/ext/misc/sqlite3_stdio.c
@@ -0,0 +1,298 @@
+/*
+** 2024-09-24
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** Implementation of standard I/O interfaces for UTF-8 that are missing
+** on Windows.
+*/
+#ifdef _WIN32  /* This file is a no-op on all platforms except Windows */
+#ifndef _SQLITE3_STDIO_H_
+#include "sqlite3_stdio.h"
+#endif
+#undef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <assert.h>
+#include "sqlite3.h"
+#include <ctype.h>
+#include <stdarg.h>
+#include <io.h>
+#include <fcntl.h>
+
+/*
+** If the SQLITE_U8TEXT_ONLY option is defined, then use O_U8TEXT
+** when appropriate on all output.  (Sometimes use O_BINARY when
+** rendering ASCII text in cases where NL-to-CRLF expansion would
+** not be correct.)
+**
+** If the SQLITE_U8TEXT_STDIO option is defined, then use O_U8TEXT
+** when appropriate when writing to stdout or stderr.  Use O_BINARY
+** or O_TEXT (depending on things like the .mode and the .crlf setting
+** in the CLI, or other context clues in other applications) for all
+** other output channels.
+**
+** The default behavior, if neither of the above is defined is to
+** use O_U8TEXT when writing to the Windows console (or anything
+** else for which _isatty() returns true) and to use O_BINARY or O_TEXT
+** for all other output channels.
+*/
+#if defined(SQLITE_U8TEXT_ONLY)
+# define UseWtextForOutput(fd) 1
+# define UseWtextForInput(fd)  1
+# define IsConsole(fd)         _isatty(_fileno(fd))
+#elif defined(SQLITE_U8TEXT_STDIO)
+# define UseWtextForOutput(fd) ((fd)==stdout || (fd)==stderr)
+# define UseWtextForInput(fd)  ((fd)==stdin)
+# define IsConsole(fd)         _isatty(_fileno(fd))
+#else
+# define UseWtextForOutput(fd) _isatty(_fileno(fd))
+# define UseWtextForInput(fd)  _isatty(_fileno(fd))
+# define IsConsole(fd)         1
+#endif
+
+/*
+** Global variables determine if simulated O_BINARY mode is to be
+** used for stdout or other, respectively.  Simulated O_BINARY mode
+** means the mode is usually O_BINARY, but switches to O_U8TEXT for
+** unicode characters U+0080 or greater (any character that has a
+** multi-byte representation in UTF-8).  This is the only way we
+** have found to render Unicode characters on a Windows console while
+** at the same time avoiding undesirable \n to \r\n translation.
+*/
+static int simBinaryStdout = 0;
+static int simBinaryOther = 0;
+
+
+/*
+** Determine if simulated binary mode should be used for output to fd
+*/
+static int UseBinaryWText(FILE *fd){
+  if( fd==stdout || fd==stderr ){
+    return simBinaryStdout;
+  }else{
+    return simBinaryOther;
+  }
+}
+
+
+/*
+** Work-alike for the fopen() routine from the standard C library.
+*/
+FILE *sqlite3_fopen(const char *zFilename, const char *zMode){
+  FILE *fp = 0;
+  wchar_t *b1, *b2;
+  int sz1, sz2;
+
+  sz1 = (int)strlen(zFilename);
+  sz2 = (int)strlen(zMode);
+  b1 = sqlite3_malloc( (sz1+1)*sizeof(b1[0]) );
+  b2 = sqlite3_malloc( (sz2+1)*sizeof(b1[0]) );
+  if( b1 && b2 ){
+    sz1 = MultiByteToWideChar(CP_UTF8, 0, zFilename, sz1, b1, sz1);
+    b1[sz1] = 0;
+    sz2 = MultiByteToWideChar(CP_UTF8, 0, zMode, sz2, b2, sz2);
+    b2[sz2] = 0;
+    fp = _wfopen(b1, b2);
+  }
+  sqlite3_free(b1);
+  sqlite3_free(b2);
+  simBinaryOther = 0;
+  return fp;
+}
+
+
+/*
+** Work-alike for the popen() routine from the standard C library.
+*/
+FILE *sqlite3_popen(const char *zCommand, const char *zMode){
+  FILE *fp = 0;
+  wchar_t *b1, *b2;
+  int sz1, sz2;
+
+  sz1 = (int)strlen(zCommand);
+  sz2 = (int)strlen(zMode);
+  b1 = sqlite3_malloc( (sz1+1)*sizeof(b1[0]) );
+  b2 = sqlite3_malloc( (sz2+1)*sizeof(b1[0]) );
+  if( b1 && b2 ){
+    sz1 = MultiByteToWideChar(CP_UTF8, 0, zCommand, sz1, b1, sz1);
+    b1[sz1] = 0;
+    sz2 = MultiByteToWideChar(CP_UTF8, 0, zMode, sz2, b2, sz2);
+    b2[sz2] = 0;
+    fp = _wpopen(b1, b2);
+  }
+  sqlite3_free(b1);
+  sqlite3_free(b2);
+  return fp;
+}
+
+/*
+** Work-alike for fgets() from the standard C library.
+*/
+char *sqlite3_fgets(char *buf, int sz, FILE *in){
+  if( UseWtextForInput(in) ){
+    /* When reading from the command-prompt in Windows, it is necessary
+    ** to use _O_WTEXT input mode to read UTF-16 characters, then translate
+    ** that into UTF-8.  Otherwise, non-ASCII characters all get translated
+    ** into '?'.
+    */
+    wchar_t *b1 = sqlite3_malloc( sz*sizeof(wchar_t) );
+    if( b1==0 ) return 0;
+#ifndef SQLITE_USE_STDIO_FOR_CONSOLE
+    DWORD nRead = 0;
+    if( IsConsole(in)
+     && ReadConsoleW(GetStdHandle(STD_INPUT_HANDLE), b1, sz, &nRead, 0)
+    ){
+      b1[nRead] = 0;
+    }else
+#endif
+    {
+      _setmode(_fileno(in), IsConsole(in) ? _O_WTEXT : _O_U8TEXT);
+      if( fgetws(b1, sz/4, in)==0 ){
+        sqlite3_free(b1);
+        return 0;
+      }
+    }
+    WideCharToMultiByte(CP_UTF8, 0, b1, -1, buf, sz, 0, 0);
+    sqlite3_free(b1);
+    return buf;
+  }else{
+    /* Reading from a file or other input source, just read bytes without
+    ** any translation. */
+    return fgets(buf, sz, in);
+  }
+}
+
+/*
+** Send ASCII text as O_BINARY.  But for Unicode characters U+0080 and
+** greater, switch to O_U8TEXT.
+*/
+static void piecemealOutput(wchar_t *b1, int sz, FILE *out){
+  int i;
+  wchar_t c;
+  while( sz>0 ){
+    for(i=0; i<sz && b1[i]>=0x80; i++){}
+    if( i>0 ){
+      c = b1[i];
+      b1[i] = 0;
+      fflush(out);
+      _setmode(_fileno(out), _O_U8TEXT);
+      fputws(b1, out);
+      fflush(out);
+      b1 += i;
+      b1[0] = c;
+      sz -= i;
+    }else{
+      fflush(out);
+      _setmode(_fileno(out), _O_TEXT);
+      _setmode(_fileno(out), _O_BINARY);
+      fwrite(&b1[0], 1, 1, out);
+      for(i=1; i<sz && b1[i]<0x80; i++){
+        fwrite(&b1[i], 1, 1, out);
+      }
+      fflush(out);
+      _setmode(_fileno(out), _O_U8TEXT);
+      b1 += i;
+      sz -= i;
+    }
+  }
+}
+
+/*
+** Work-alike for fputs() from the standard C library.
+*/
+int sqlite3_fputs(const char *z, FILE *out){
+  if( !UseWtextForOutput(out) ){
+    /* Writing to a file or other destination, just write bytes without
+    ** any translation. */
+    return fputs(z, out);
+  }else{
+    /* One must use UTF16 in order to get unicode support when writing
+    ** to the console on Windows. 
+    */
+    int sz = (int)strlen(z);
+    wchar_t *b1 = sqlite3_malloc( (sz+1)*sizeof(wchar_t) );
+    if( b1==0 ) return 0;
+    sz = MultiByteToWideChar(CP_UTF8, 0, z, sz, b1, sz);
+    b1[sz] = 0;
+
+#ifndef SQLITE_STDIO_FOR_CONSOLE
+    DWORD nWr = 0;
+    if( IsConsole(out)
+      && WriteConsoleW(GetStdHandle(STD_OUTPUT_HANDLE),b1,sz,&nWr,0)
+    ){
+      /* If writing to the console, then the WriteConsoleW() is all we
+      ** need to do. */
+    }else
+#endif
+    {
+      /* For non-console I/O, or if SQLITE_USE_STDIO_FOR_CONSOLE is defined
+      ** then write using the standard library. */
+      _setmode(_fileno(out), _O_U8TEXT);
+      if( UseBinaryWText(out) ){
+        piecemealOutput(b1, sz, out);
+      }else{
+        fputws(b1, out);
+      }
+    }
+    sqlite3_free(b1);
+    return 0;
+  }
+}
+
+
+/*
+** Work-alike for fprintf() from the standard C library.
+*/
+int sqlite3_fprintf(FILE *out, const char *zFormat, ...){
+  int rc;
+  if( UseWtextForOutput(out) ){
+    /* When writing to the command-prompt in Windows, it is necessary
+    ** to use _O_WTEXT input mode and write UTF-16 characters.
+    */
+    char *z;
+    va_list ap;
+
+    va_start(ap, zFormat);
+    z = sqlite3_vmprintf(zFormat, ap);
+    va_end(ap);
+    sqlite3_fputs(z, out);
+    rc = (int)strlen(z);
+    sqlite3_free(z);
+  }else{
+    /* Writing to a file or other destination, just write bytes without
+    ** any translation. */
+    va_list ap;
+    va_start(ap, zFormat);
+    rc = vfprintf(out, zFormat, ap);
+    va_end(ap);
+  }
+  return rc;
+}
+
+/*
+** Set the mode for an output stream.  mode argument is typically _O_BINARY or
+** _O_TEXT.
+*/
+void sqlite3_fsetmode(FILE *fp, int mode){
+  if( !UseWtextForOutput(fp) ){
+    fflush(fp);
+    _setmode(_fileno(fp), mode);
+  }else if( fp==stdout || fp==stderr ){
+    simBinaryStdout = (mode==_O_BINARY);
+  }else{
+    simBinaryOther = (mode==_O_BINARY);
+  }
+}
+
+#endif /* defined(_WIN32) */
diff --git a/ext/misc/sqlite3_stdio.h b/ext/misc/sqlite3_stdio.h
new file mode 100644
index 0000000000000000000000000000000000000000..dd0eefad043beab3afb7b9b8beb921377c7ed97a
--- /dev/null
+++ b/ext/misc/sqlite3_stdio.h
@@ -0,0 +1,55 @@
+/*
+** 2024-09-24
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** This header file contains definitions of interfaces that provide 
+** cross-platform I/O for UTF-8 content.
+**
+** On most platforms, the interfaces definitions in this file are
+** just #defines.  For example sqlite3_fopen() is a macro that resolves
+** to the standard fopen() in the C-library.
+**
+** But Windows does not have a standard C-library, at least not one that
+** can handle UTF-8.  So for windows build, the interfaces resolve to new
+** C-language routines contained in the separate sqlite3_stdio.c source file.
+**
+** So on all non-Windows platforms, simply #include this header file and
+** use the interfaces defined herein.  Then to run your application on Windows,
+** also link in the accompanying sqlite3_stdio.c source file when compiling
+** to get compatible interfaces.
+*/
+#ifndef _SQLITE3_STDIO_H_
+#define _SQLITE3_STDIO_H_ 1
+#ifdef _WIN32
+/**** Definitions For Windows ****/
+#include <stdio.h>
+#include <windows.h>
+
+FILE *sqlite3_fopen(const char *zFilename, const char *zMode);
+FILE *sqlite3_popen(const char *zCommand, const char *type);
+char *sqlite3_fgets(char *s, int size, FILE *stream);
+int sqlite3_fputs(const char *s, FILE *stream);
+int sqlite3_fprintf(FILE *stream, const char *format, ...);
+void sqlite3_fsetmode(FILE *stream, int mode);
+
+
+#else
+/**** Definitions For All Other Platforms ****/
+#include <stdio.h>
+#define sqlite3_fopen     fopen
+#define sqlite3_popen     popen
+#define sqlite3_fgets     fgets
+#define sqlite3_fputs     fputs
+#define sqlite3_fprintf   fprintf
+#define sqlite3_fsetmode(F,X)   /*no-op*/
+
+#endif
+#endif /* _SQLITE3_STDIO_H_ */
diff --git a/ext/misc/stmt.c b/ext/misc/stmt.c
new file mode 100644
index 0000000000000000000000000000000000000000..cc1aaa84937f279be52f71248444ca332f0c94b1
--- /dev/null
+++ b/ext/misc/stmt.c
@@ -0,0 +1,347 @@
+/*
+** 2017-05-31
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** This file demonstrates an eponymous virtual table that returns information
+** about all prepared statements for the database connection.
+**
+** Usage example:
+**
+**     .load ./stmt
+**     .mode line
+**     .header on
+**     SELECT * FROM stmt;
+*/
+#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_STMTVTAB)
+#if !defined(SQLITEINT_H)
+#include "sqlite3ext.h"
+#endif
+SQLITE_EXTENSION_INIT1
+#include <assert.h>
+#include <string.h>
+
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+
+
+#define STMT_NUM_INTEGER_COLUMN 10
+typedef struct StmtRow StmtRow;
+struct StmtRow {
+  sqlite3_int64 iRowid;                /* Rowid value */
+  char *zSql;                          /* column "sql" */
+  int aCol[STMT_NUM_INTEGER_COLUMN+1]; /* all other column values */
+  StmtRow *pNext;                      /* Next row to return */
+};
+
+/* stmt_vtab is a subclass of sqlite3_vtab which will
+** serve as the underlying representation of a stmt virtual table
+*/
+typedef struct stmt_vtab stmt_vtab;
+struct stmt_vtab {
+  sqlite3_vtab base;  /* Base class - must be first */
+  sqlite3 *db;        /* Database connection for this stmt vtab */
+};
+
+/* stmt_cursor is a subclass of sqlite3_vtab_cursor which will
+** serve as the underlying representation of a cursor that scans
+** over rows of the result
+*/
+typedef struct stmt_cursor stmt_cursor;
+struct stmt_cursor {
+  sqlite3_vtab_cursor base;  /* Base class - must be first */
+  sqlite3 *db;               /* Database connection for this cursor */
+  StmtRow *pRow;             /* Current row */
+};
+
+/*
+** The stmtConnect() method is invoked to create a new
+** stmt_vtab that describes the stmt virtual table.
+**
+** Think of this routine as the constructor for stmt_vtab objects.
+**
+** All this routine needs to do is:
+**
+**    (1) Allocate the stmt_vtab object and initialize all fields.
+**
+**    (2) Tell SQLite (via the sqlite3_declare_vtab() interface) what the
+**        result set of queries against stmt will look like.
+*/
+static int stmtConnect(
+  sqlite3 *db,
+  void *pAux,
+  int argc, const char *const*argv,
+  sqlite3_vtab **ppVtab,
+  char **pzErr
+){
+  stmt_vtab *pNew;
+  int rc;
+
+/* Column numbers */
+#define STMT_COLUMN_SQL     0   /* SQL for the statement */
+#define STMT_COLUMN_NCOL    1   /* Number of result columns */
+#define STMT_COLUMN_RO      2   /* True if read-only */
+#define STMT_COLUMN_BUSY    3   /* True if currently busy */
+#define STMT_COLUMN_NSCAN   4   /* SQLITE_STMTSTATUS_FULLSCAN_STEP */
+#define STMT_COLUMN_NSORT   5   /* SQLITE_STMTSTATUS_SORT */
+#define STMT_COLUMN_NAIDX   6   /* SQLITE_STMTSTATUS_AUTOINDEX */
+#define STMT_COLUMN_NSTEP   7   /* SQLITE_STMTSTATUS_VM_STEP */
+#define STMT_COLUMN_REPREP  8   /* SQLITE_STMTSTATUS_REPREPARE */
+#define STMT_COLUMN_RUN     9   /* SQLITE_STMTSTATUS_RUN */
+#define STMT_COLUMN_MEM    10   /* SQLITE_STMTSTATUS_MEMUSED */
+
+
+  (void)pAux;
+  (void)argc;
+  (void)argv;
+  (void)pzErr;
+  rc = sqlite3_declare_vtab(db,
+     "CREATE TABLE x(sql,ncol,ro,busy,nscan,nsort,naidx,nstep,"
+                    "reprep,run,mem)");
+  if( rc==SQLITE_OK ){
+    pNew = sqlite3_malloc64( sizeof(*pNew) );
+    *ppVtab = (sqlite3_vtab*)pNew;
+    if( pNew==0 ) return SQLITE_NOMEM;
+    memset(pNew, 0, sizeof(*pNew));
+    pNew->db = db;
+  }
+  return rc;
+}
+
+/*
+** This method is the destructor for stmt_cursor objects.
+*/
+static int stmtDisconnect(sqlite3_vtab *pVtab){
+  sqlite3_free(pVtab);
+  return SQLITE_OK;
+}
+
+/*
+** Constructor for a new stmt_cursor object.
+*/
+static int stmtOpen(sqlite3_vtab *p, sqlite3_vtab_cursor **ppCursor){
+  stmt_cursor *pCur;
+  pCur = sqlite3_malloc64( sizeof(*pCur) );
+  if( pCur==0 ) return SQLITE_NOMEM;
+  memset(pCur, 0, sizeof(*pCur));
+  pCur->db = ((stmt_vtab*)p)->db;
+  *ppCursor = &pCur->base;
+  return SQLITE_OK;
+}
+
+static void stmtCsrReset(stmt_cursor *pCur){
+  StmtRow *pRow = 0;
+  StmtRow *pNext = 0;
+  for(pRow=pCur->pRow; pRow; pRow=pNext){
+    pNext = pRow->pNext;
+    sqlite3_free(pRow);
+  }
+  pCur->pRow = 0;
+}
+
+/*
+** Destructor for a stmt_cursor.
+*/
+static int stmtClose(sqlite3_vtab_cursor *cur){
+  stmtCsrReset((stmt_cursor*)cur);
+  sqlite3_free(cur);
+  return SQLITE_OK;
+}
+
+
+/*
+** Advance a stmt_cursor to its next row of output.
+*/
+static int stmtNext(sqlite3_vtab_cursor *cur){
+  stmt_cursor *pCur = (stmt_cursor*)cur;
+  StmtRow *pNext = pCur->pRow->pNext;
+  sqlite3_free(pCur->pRow);
+  pCur->pRow = pNext;
+  return SQLITE_OK;
+}
+
+/*
+** Return values of columns for the row at which the stmt_cursor
+** is currently pointing.
+*/
+static int stmtColumn(
+  sqlite3_vtab_cursor *cur,   /* The cursor */
+  sqlite3_context *ctx,       /* First argument to sqlite3_result_...() */
+  int i                       /* Which column to return */
+){
+  stmt_cursor *pCur = (stmt_cursor*)cur;
+  StmtRow *pRow = pCur->pRow;
+  if( i==STMT_COLUMN_SQL ){
+    sqlite3_result_text(ctx, pRow->zSql, -1, SQLITE_TRANSIENT);
+  }else{
+    sqlite3_result_int(ctx, pRow->aCol[i]);
+  }
+  return SQLITE_OK;
+}
+
+/*
+** Return the rowid for the current row.  In this implementation, the
+** rowid is the same as the output value.
+*/
+static int stmtRowid(sqlite3_vtab_cursor *cur, sqlite_int64 *pRowid){
+  stmt_cursor *pCur = (stmt_cursor*)cur;
+  *pRowid = pCur->pRow->iRowid;
+  return SQLITE_OK;
+}
+
+/*
+** Return TRUE if the cursor has been moved off of the last
+** row of output.
+*/
+static int stmtEof(sqlite3_vtab_cursor *cur){
+  stmt_cursor *pCur = (stmt_cursor*)cur;
+  return pCur->pRow==0;
+}
+
+/*
+** This method is called to "rewind" the stmt_cursor object back
+** to the first row of output.  This method is always called at least
+** once prior to any call to stmtColumn() or stmtRowid() or 
+** stmtEof().
+*/
+static int stmtFilter(
+  sqlite3_vtab_cursor *pVtabCursor, 
+  int idxNum, const char *idxStr,
+  int argc, sqlite3_value **argv
+){
+  stmt_cursor *pCur = (stmt_cursor *)pVtabCursor;
+  sqlite3_stmt *p = 0;
+  sqlite3_int64 iRowid = 1;
+  StmtRow **ppRow = 0;
+
+  (void)idxNum;
+  (void)idxStr;
+  (void)argc;
+  (void)argv;
+  stmtCsrReset(pCur);
+  ppRow = &pCur->pRow;
+  for(p=sqlite3_next_stmt(pCur->db, 0); p; p=sqlite3_next_stmt(pCur->db, p)){
+    const char *zSql = sqlite3_sql(p);
+    sqlite3_int64 nSql = zSql ? strlen(zSql)+1 : 0;
+    StmtRow *pNew = (StmtRow*)sqlite3_malloc64(sizeof(StmtRow) + nSql);
+
+    if( pNew==0 ) return SQLITE_NOMEM;
+    memset(pNew, 0, sizeof(StmtRow));
+    if( zSql ){
+      pNew->zSql = (char*)&pNew[1];
+      memcpy(pNew->zSql, zSql, nSql);
+    }
+    pNew->aCol[STMT_COLUMN_NCOL] = sqlite3_column_count(p);
+    pNew->aCol[STMT_COLUMN_RO] = sqlite3_stmt_readonly(p);
+    pNew->aCol[STMT_COLUMN_BUSY] = sqlite3_stmt_busy(p);
+    pNew->aCol[STMT_COLUMN_NSCAN] = sqlite3_stmt_status(
+        p, SQLITE_STMTSTATUS_FULLSCAN_STEP, 0
+    );
+    pNew->aCol[STMT_COLUMN_NSORT] = sqlite3_stmt_status(
+        p, SQLITE_STMTSTATUS_SORT, 0
+    );
+    pNew->aCol[STMT_COLUMN_NAIDX] = sqlite3_stmt_status(
+        p, SQLITE_STMTSTATUS_AUTOINDEX, 0
+    );
+    pNew->aCol[STMT_COLUMN_NSTEP] = sqlite3_stmt_status(
+        p, SQLITE_STMTSTATUS_VM_STEP, 0
+    );
+    pNew->aCol[STMT_COLUMN_REPREP] = sqlite3_stmt_status(
+        p, SQLITE_STMTSTATUS_REPREPARE, 0
+    );
+    pNew->aCol[STMT_COLUMN_RUN] = sqlite3_stmt_status(
+        p, SQLITE_STMTSTATUS_RUN, 0
+    );
+    pNew->aCol[STMT_COLUMN_MEM] = sqlite3_stmt_status(
+        p, SQLITE_STMTSTATUS_MEMUSED, 0
+    );
+    pNew->iRowid = iRowid++;
+    *ppRow = pNew;
+    ppRow = &pNew->pNext;
+  }
+
+  return SQLITE_OK;
+}
+
+/*
+** SQLite will invoke this method one or more times while planning a query
+** that uses the stmt virtual table.  This routine needs to create
+** a query plan for each invocation and compute an estimated cost for that
+** plan.
+*/
+static int stmtBestIndex(
+  sqlite3_vtab *tab,
+  sqlite3_index_info *pIdxInfo
+){
+  (void)tab;
+  pIdxInfo->estimatedCost = (double)500;
+  pIdxInfo->estimatedRows = 500;
+  return SQLITE_OK;
+}
+
+/*
+** This following structure defines all the methods for the 
+** stmt virtual table.
+*/
+static sqlite3_module stmtModule = {
+  0,                         /* iVersion */
+  0,                         /* xCreate */
+  stmtConnect,               /* xConnect */
+  stmtBestIndex,             /* xBestIndex */
+  stmtDisconnect,            /* xDisconnect */
+  0,                         /* xDestroy */
+  stmtOpen,                  /* xOpen - open a cursor */
+  stmtClose,                 /* xClose - close a cursor */
+  stmtFilter,                /* xFilter - configure scan constraints */
+  stmtNext,                  /* xNext - advance a cursor */
+  stmtEof,                   /* xEof - check for end of scan */
+  stmtColumn,                /* xColumn - read data */
+  stmtRowid,                 /* xRowid - read data */
+  0,                         /* xUpdate */
+  0,                         /* xBegin */
+  0,                         /* xSync */
+  0,                         /* xCommit */
+  0,                         /* xRollback */
+  0,                         /* xFindMethod */
+  0,                         /* xRename */
+  0,                         /* xSavepoint */
+  0,                         /* xRelease */
+  0,                         /* xRollbackTo */
+  0,                         /* xShadowName */
+  0                          /* xIntegrity */
+};
+
+#endif /* SQLITE_OMIT_VIRTUALTABLE */
+
+int sqlite3StmtVtabInit(sqlite3 *db){
+  int rc = SQLITE_OK;
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+  rc = sqlite3_create_module(db, "sqlite_stmt", &stmtModule, 0);
+#endif
+  return rc;
+}
+
+#ifndef SQLITE_CORE
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_stmt_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  int rc = SQLITE_OK;
+  SQLITE_EXTENSION_INIT2(pApi);
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+  rc = sqlite3StmtVtabInit(db);
+#endif
+  return rc;
+}
+#endif /* SQLITE_CORE */
+#endif /* !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_STMTVTAB) */
diff --git a/ext/misc/stmtrand.c b/ext/misc/stmtrand.c
new file mode 100644
index 0000000000000000000000000000000000000000..b5e3b89a32000f4f3e07e7f468d037c55c9852c6
--- /dev/null
+++ b/ext/misc/stmtrand.c
@@ -0,0 +1,97 @@
+/*
+** 2024-05-24
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** An SQL function that return pseudo-random non-negative integers.
+**
+**      SELECT stmtrand(123);
+**
+** A special feature of this function is that the same sequence of random
+** integers is returned for each invocation of the statement.  This makes
+** the results repeatable, and hence useful for testing.  The argument is
+** an integer which is the seed for the random number sequence.  The seed
+** is used by the first invocation of this function only and is ignored
+** for all subsequent calls within the same statement.
+**
+** Resetting a statement (sqlite3_reset()) also resets the random number
+** sequence.
+*/
+#include "sqlite3ext.h"
+SQLITE_EXTENSION_INIT1
+#include <assert.h>
+#include <string.h>
+
+/* State of the pseudo-random number generator */
+typedef struct Stmtrand {
+  unsigned int x, y;
+} Stmtrand;
+
+/* auxdata key */
+#define STMTRAND_KEY  (-4418371)
+
+/*
+** Function:     stmtrand(SEED)
+**
+** Return a pseudo-random number.
+*/
+static void stmtrandFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  Stmtrand *p;
+
+  p = (Stmtrand*)sqlite3_get_auxdata(context, STMTRAND_KEY);
+  if( p==0 ){
+    unsigned int seed;
+    p = sqlite3_malloc( sizeof(*p) );
+    if( p==0 ){
+      sqlite3_result_error_nomem(context);
+      return;
+    }
+    if( argc>=1 ){
+      seed = (unsigned int)sqlite3_value_int(argv[0]);
+    }else{
+      seed = 0;
+    }
+    p->x = seed | 1;
+    p->y = seed;
+    sqlite3_set_auxdata(context, STMTRAND_KEY, p, sqlite3_free);
+    p = (Stmtrand*)sqlite3_get_auxdata(context, STMTRAND_KEY);
+    if( p==0 ){
+      sqlite3_result_error_nomem(context);
+      return;
+    }
+  }
+  p->x = (p->x>>1) ^ ((1+~(p->x&1)) & 0xd0000001);
+  p->y = p->y*1103515245 + 12345;
+  sqlite3_result_int(context, (int)((p->x ^ p->y)&0x7fffffff));
+}
+
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_stmtrand_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  int rc = SQLITE_OK;
+  SQLITE_EXTENSION_INIT2(pApi);
+  (void)pzErrMsg;  /* Unused parameter */
+  rc = sqlite3_create_function(db, "stmtrand", 1, SQLITE_UTF8, 0,
+                               stmtrandFunc, 0, 0);
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_function(db, "stmtrand", 0, SQLITE_UTF8, 0,
+                                 stmtrandFunc, 0, 0);
+  }
+  return rc;
+}
diff --git a/ext/misc/templatevtab.c b/ext/misc/templatevtab.c
new file mode 100644
index 0000000000000000000000000000000000000000..5865f5214b7dc4ada935896d09e25b9abed6daa7
--- /dev/null
+++ b/ext/misc/templatevtab.c
@@ -0,0 +1,269 @@
+/*
+** 2018-04-19
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** This file implements a template virtual-table.
+** Developers can make a copy of this file as a baseline for writing
+** new virtual tables and/or table-valued functions.
+**
+** Steps for writing a new virtual table implementation:
+**
+**     (1)  Make a copy of this file.  Perhaps call it "mynewvtab.c"
+**
+**     (2)  Replace this header comment with something appropriate for
+**          the new virtual table
+**
+**     (3)  Change every occurrence of "templatevtab" to some other string
+**          appropriate for the new virtual table.  Ideally, the new string
+**          should be the basename of the source file: "mynewvtab".  Also
+**          globally change "TEMPLATEVTAB" to "MYNEWVTAB".
+**
+**     (4)  Run a test compilation to make sure the unmodified virtual
+**          table works.
+**
+**     (5)  Begin making incremental changes, testing as you go, to evolve
+**          the new virtual table to do what you want it to do.
+**
+** This template is minimal, in the sense that it uses only the required
+** methods on the sqlite3_module object.  As a result, templatevtab is
+** a read-only and eponymous-only table.  Those limitation can be removed
+** by adding new methods.
+**
+** This template implements an eponymous-only virtual table with a rowid and
+** two columns named "a" and "b".  The table as 10 rows with fixed integer
+** values. Usage example:
+**
+**     SELECT rowid, a, b FROM templatevtab;
+*/
+#if !defined(SQLITEINT_H)
+#include "sqlite3ext.h"
+#endif
+SQLITE_EXTENSION_INIT1
+#include <string.h>
+#include <assert.h>
+
+/* templatevtab_vtab is a subclass of sqlite3_vtab which is
+** underlying representation of the virtual table
+*/
+typedef struct templatevtab_vtab templatevtab_vtab;
+struct templatevtab_vtab {
+  sqlite3_vtab base;  /* Base class - must be first */
+  /* Add new fields here, as necessary */
+};
+
+/* templatevtab_cursor is a subclass of sqlite3_vtab_cursor which will
+** serve as the underlying representation of a cursor that scans
+** over rows of the result
+*/
+typedef struct templatevtab_cursor templatevtab_cursor;
+struct templatevtab_cursor {
+  sqlite3_vtab_cursor base;  /* Base class - must be first */
+  /* Insert new fields here.  For this templatevtab we only keep track
+  ** of the rowid */
+  sqlite3_int64 iRowid;      /* The rowid */
+};
+
+/*
+** The templatevtabConnect() method is invoked to create a new
+** template virtual table.
+**
+** Think of this routine as the constructor for templatevtab_vtab objects.
+**
+** All this routine needs to do is:
+**
+**    (1) Allocate the templatevtab_vtab object and initialize all fields.
+**
+**    (2) Tell SQLite (via the sqlite3_declare_vtab() interface) what the
+**        result set of queries against the virtual table will look like.
+*/
+static int templatevtabConnect(
+  sqlite3 *db,
+  void *pAux,
+  int argc, const char *const*argv,
+  sqlite3_vtab **ppVtab,
+  char **pzErr
+){
+  templatevtab_vtab *pNew;
+  int rc;
+
+  rc = sqlite3_declare_vtab(db,
+           "CREATE TABLE x(a,b)"
+       );
+  /* For convenience, define symbolic names for the index to each column. */
+#define TEMPLATEVTAB_A  0
+#define TEMPLATEVTAB_B  1
+  if( rc==SQLITE_OK ){
+    pNew = sqlite3_malloc( sizeof(*pNew) );
+    *ppVtab = (sqlite3_vtab*)pNew;
+    if( pNew==0 ) return SQLITE_NOMEM;
+    memset(pNew, 0, sizeof(*pNew));
+  }
+  return rc;
+}
+
+/*
+** This method is the destructor for templatevtab_vtab objects.
+*/
+static int templatevtabDisconnect(sqlite3_vtab *pVtab){
+  templatevtab_vtab *p = (templatevtab_vtab*)pVtab;
+  sqlite3_free(p);
+  return SQLITE_OK;
+}
+
+/*
+** Constructor for a new templatevtab_cursor object.
+*/
+static int templatevtabOpen(sqlite3_vtab *p, sqlite3_vtab_cursor **ppCursor){
+  templatevtab_cursor *pCur;
+  pCur = sqlite3_malloc( sizeof(*pCur) );
+  if( pCur==0 ) return SQLITE_NOMEM;
+  memset(pCur, 0, sizeof(*pCur));
+  *ppCursor = &pCur->base;
+  return SQLITE_OK;
+}
+
+/*
+** Destructor for a templatevtab_cursor.
+*/
+static int templatevtabClose(sqlite3_vtab_cursor *cur){
+  templatevtab_cursor *pCur = (templatevtab_cursor*)cur;
+  sqlite3_free(pCur);
+  return SQLITE_OK;
+}
+
+
+/*
+** Advance a templatevtab_cursor to its next row of output.
+*/
+static int templatevtabNext(sqlite3_vtab_cursor *cur){
+  templatevtab_cursor *pCur = (templatevtab_cursor*)cur;
+  pCur->iRowid++;
+  return SQLITE_OK;
+}
+
+/*
+** Return values of columns for the row at which the templatevtab_cursor
+** is currently pointing.
+*/
+static int templatevtabColumn(
+  sqlite3_vtab_cursor *cur,   /* The cursor */
+  sqlite3_context *ctx,       /* First argument to sqlite3_result_...() */
+  int i                       /* Which column to return */
+){
+  templatevtab_cursor *pCur = (templatevtab_cursor*)cur;
+  switch( i ){
+    case TEMPLATEVTAB_A:
+      sqlite3_result_int(ctx, 1000 + pCur->iRowid);
+      break;
+    default:
+      assert( i==TEMPLATEVTAB_B );
+      sqlite3_result_int(ctx, 2000 + pCur->iRowid);
+      break;
+  }
+  return SQLITE_OK;
+}
+
+/*
+** Return the rowid for the current row.  In this implementation, the
+** rowid is the same as the output value.
+*/
+static int templatevtabRowid(sqlite3_vtab_cursor *cur, sqlite_int64 *pRowid){
+  templatevtab_cursor *pCur = (templatevtab_cursor*)cur;
+  *pRowid = pCur->iRowid;
+  return SQLITE_OK;
+}
+
+/*
+** Return TRUE if the cursor has been moved off of the last
+** row of output.
+*/
+static int templatevtabEof(sqlite3_vtab_cursor *cur){
+  templatevtab_cursor *pCur = (templatevtab_cursor*)cur;
+  return pCur->iRowid>=10;
+}
+
+/*
+** This method is called to "rewind" the templatevtab_cursor object back
+** to the first row of output.  This method is always called at least
+** once prior to any call to templatevtabColumn() or templatevtabRowid() or 
+** templatevtabEof().
+*/
+static int templatevtabFilter(
+  sqlite3_vtab_cursor *pVtabCursor, 
+  int idxNum, const char *idxStr,
+  int argc, sqlite3_value **argv
+){
+  templatevtab_cursor *pCur = (templatevtab_cursor *)pVtabCursor;
+  pCur->iRowid = 1;
+  return SQLITE_OK;
+}
+
+/*
+** SQLite will invoke this method one or more times while planning a query
+** that uses the virtual table.  This routine needs to create
+** a query plan for each invocation and compute an estimated cost for that
+** plan.
+*/
+static int templatevtabBestIndex(
+  sqlite3_vtab *tab,
+  sqlite3_index_info *pIdxInfo
+){
+  pIdxInfo->estimatedCost = (double)10;
+  pIdxInfo->estimatedRows = 10;
+  return SQLITE_OK;
+}
+
+/*
+** This following structure defines all the methods for the 
+** virtual table.
+*/
+static sqlite3_module templatevtabModule = {
+  /* iVersion    */ 0,
+  /* xCreate     */ 0,
+  /* xConnect    */ templatevtabConnect,
+  /* xBestIndex  */ templatevtabBestIndex,
+  /* xDisconnect */ templatevtabDisconnect,
+  /* xDestroy    */ 0,
+  /* xOpen       */ templatevtabOpen,
+  /* xClose      */ templatevtabClose,
+  /* xFilter     */ templatevtabFilter,
+  /* xNext       */ templatevtabNext,
+  /* xEof        */ templatevtabEof,
+  /* xColumn     */ templatevtabColumn,
+  /* xRowid      */ templatevtabRowid,
+  /* xUpdate     */ 0,
+  /* xBegin      */ 0,
+  /* xSync       */ 0,
+  /* xCommit     */ 0,
+  /* xRollback   */ 0,
+  /* xFindMethod */ 0,
+  /* xRename     */ 0,
+  /* xSavepoint  */ 0,
+  /* xRelease    */ 0,
+  /* xRollbackTo */ 0,
+  /* xShadowName */ 0,
+  /* xIntegrity  */ 0
+};
+
+
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_templatevtab_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  int rc = SQLITE_OK;
+  SQLITE_EXTENSION_INIT2(pApi);
+  rc = sqlite3_create_module(db, "templatevtab", &templatevtabModule, 0);
+  return rc;
+}
diff --git a/ext/misc/totype.c b/ext/misc/totype.c
new file mode 100644
index 0000000000000000000000000000000000000000..31c497a5675a63b73af256480f90baaac63f2b7f
--- /dev/null
+++ b/ext/misc/totype.c
@@ -0,0 +1,528 @@
+/*
+** 2013-10-14
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This SQLite extension implements functions tointeger(X) and toreal(X).
+**
+** If X is an integer, real, or string value that can be
+** losslessly represented as an integer, then tointeger(X)
+** returns the corresponding integer value.
+** If X is an 8-byte BLOB then that blob is interpreted as
+** a signed two-compliment little-endian encoding of an integer
+** and tointeger(X) returns the corresponding integer value.
+** Otherwise tointeger(X) return NULL.
+**
+** If X is an integer, real, or string value that can be
+** convert into a real number, preserving at least 15 digits
+** of precision, then toreal(X) returns the corresponding real value.
+** If X is an 8-byte BLOB then that blob is interpreted as
+** a 64-bit IEEE754 big-endian floating point value
+** and toreal(X) returns the corresponding real value.
+** Otherwise toreal(X) return NULL.
+**
+** Note that tointeger(X) of an 8-byte BLOB assumes a little-endian
+** encoding whereas toreal(X) of an 8-byte BLOB assumes a big-endian
+** encoding.
+*/
+#include "sqlite3ext.h"
+SQLITE_EXTENSION_INIT1
+#include <assert.h>
+#include <string.h>
+
+/*
+** Determine if this is running on a big-endian or little-endian
+** processor
+*/
+#if defined(i386) || defined(__i386__) || defined(_M_IX86)\
+                             || defined(__x86_64) || defined(__x86_64__)
+# define TOTYPE_BIGENDIAN    0
+# define TOTYPE_LITTLEENDIAN 1
+#else
+  const int totype_one = 1;
+# define TOTYPE_BIGENDIAN    (*(char *)(&totype_one)==0)
+# define TOTYPE_LITTLEENDIAN (*(char *)(&totype_one)==1)
+#endif
+
+/*
+** Constants for the largest and smallest possible 64-bit signed integers.
+** These macros are designed to work correctly on both 32-bit and 64-bit
+** compilers.
+*/
+#ifndef LARGEST_INT64
+# define LARGEST_INT64   (0xffffffff|(((sqlite3_int64)0x7fffffff)<<32))
+#endif
+
+#ifndef SMALLEST_INT64
+# define SMALLEST_INT64  (((sqlite3_int64)-1) - LARGEST_INT64)
+#endif
+
+/*
+** Return TRUE if character c is a whitespace character
+*/
+static int totypeIsspace(unsigned char c){
+  return c==' ' || c=='\t' || c=='\n' || c=='\v' || c=='\f' || c=='\r';
+}
+
+/*
+** Return TRUE if character c is a digit
+*/
+static int totypeIsdigit(unsigned char c){
+  return c>='0' && c<='9';
+}
+
+/*
+** Compare the 19-character string zNum against the text representation
+** value 2^63:  9223372036854775808.  Return negative, zero, or positive
+** if zNum is less than, equal to, or greater than the string.
+** Note that zNum must contain exactly 19 characters.
+**
+** Unlike memcmp() this routine is guaranteed to return the difference
+** in the values of the last digit if the only difference is in the
+** last digit.  So, for example,
+**
+**      totypeCompare2pow63("9223372036854775800")
+**
+** will return -8.
+*/
+static int totypeCompare2pow63(const char *zNum){
+  int c = 0;
+  int i;
+                    /* 012345678901234567 */
+  const char *pow63 = "922337203685477580";
+  for(i=0; c==0 && i<18; i++){
+    c = (zNum[i]-pow63[i])*10;
+  }
+  if( c==0 ){
+    c = zNum[18] - '8';
+  }
+  return c;
+}
+
+/*
+** Convert zNum to a 64-bit signed integer.
+**
+** If the zNum value is representable as a 64-bit twos-complement
+** integer, then write that value into *pNum and return 0.
+**
+** If zNum is exactly 9223372036854665808, return 2.  This special
+** case is broken out because while 9223372036854665808 cannot be a
+** signed 64-bit integer, its negative -9223372036854665808 can be.
+**
+** If zNum is too big for a 64-bit integer and is not
+** 9223372036854665808  or if zNum contains any non-numeric text,
+** then return 1.
+**
+** The string is not necessarily zero-terminated.
+*/
+static int totypeAtoi64(const char *zNum, sqlite3_int64 *pNum, int length){
+  sqlite3_uint64 u = 0;
+  int neg = 0; /* assume positive */
+  int i;
+  int c = 0;
+  int nonNum = 0;
+  const char *zStart;
+  const char *zEnd = zNum + length;
+
+  while( zNum<zEnd && totypeIsspace(*zNum) ) zNum++;
+  if( zNum<zEnd ){
+    if( *zNum=='-' ){
+      neg = 1;
+      zNum++;
+    }else if( *zNum=='+' ){
+      zNum++;
+    }
+  }
+  zStart = zNum;
+  while( zNum<zEnd && zNum[0]=='0' ){ zNum++; } /* Skip leading zeros. */
+  for(i=0; &zNum[i]<zEnd && (c=zNum[i])>='0' && c<='9'; i++){
+    u = u*10 + c - '0';
+  }
+  if( u>LARGEST_INT64 ){
+    *pNum = SMALLEST_INT64;
+  }else if( neg ){
+    *pNum = -(sqlite3_int64)u;
+  }else{
+    *pNum = (sqlite3_int64)u;
+  }
+  if( (c!=0 && &zNum[i]<zEnd) || (i==0 && zStart==zNum) || i>19 || nonNum ){
+    /* zNum is empty or contains non-numeric text or is longer
+    ** than 19 digits (thus guaranteeing that it is too large) */
+    return 1;
+  }else if( i<19 ){
+    /* Less than 19 digits, so we know that it fits in 64 bits */
+    assert( u<=LARGEST_INT64 );
+    return 0;
+  }else{
+    /* zNum is a 19-digit numbers.  Compare it against 9223372036854775808. */
+    c = totypeCompare2pow63(zNum);
+    if( c<0 ){
+      /* zNum is less than 9223372036854775808 so it fits */
+      assert( u<=LARGEST_INT64 );
+      return 0;
+    }else if( c>0 ){
+      /* zNum is greater than 9223372036854775808 so it overflows */
+      return 1;
+    }else{
+      /* zNum is exactly 9223372036854775808.  Fits if negative.  The
+      ** special case 2 overflow if positive */
+      assert( u-1==LARGEST_INT64 );
+      assert( (*pNum)==SMALLEST_INT64 );
+      return neg ? 0 : 2;
+    }
+  }
+}
+
+/*
+** The string z[] is an text representation of a real number.
+** Convert this string to a double and write it into *pResult.
+**
+** The string is not necessarily zero-terminated.
+**
+** Return TRUE if the result is a valid real number (or integer) and FALSE
+** if the string is empty or contains extraneous text.  Valid numbers
+** are in one of these formats:
+**
+**    [+-]digits[E[+-]digits]
+**    [+-]digits.[digits][E[+-]digits]
+**    [+-].digits[E[+-]digits]
+**
+** Leading and trailing whitespace is ignored for the purpose of determining
+** validity.
+**
+** If some prefix of the input string is a valid number, this routine
+** returns FALSE but it still converts the prefix and writes the result
+** into *pResult.
+*/
+static int totypeAtoF(const char *z, double *pResult, int length){
+  const char *zEnd = z + length;
+  /* sign * significand * (10 ^ (esign * exponent)) */
+  int sign = 1;    /* sign of significand */
+  sqlite3_int64 s = 0;       /* significand */
+  int d = 0;       /* adjust exponent for shifting decimal point */
+  int esign = 1;   /* sign of exponent */
+  int e = 0;       /* exponent */
+  int eValid = 1;  /* True exponent is either not used or is well-formed */
+  double result;
+  int nDigits = 0;
+  int nonNum = 0;
+
+  *pResult = 0.0;   /* Default return value, in case of an error */
+
+  /* skip leading spaces */
+  while( z<zEnd && totypeIsspace(*z) ) z++;
+  if( z>=zEnd ) return 0;
+
+  /* get sign of significand */
+  if( *z=='-' ){
+    sign = -1;
+    z++;
+  }else if( *z=='+' ){
+    z++;
+  }
+
+  /* skip leading zeroes */
+  while( z<zEnd && z[0]=='0' ) z++, nDigits++;
+
+  /* copy max significant digits to significand */
+  while( z<zEnd && totypeIsdigit(*z) && s<((LARGEST_INT64-9)/10) ){
+    s = s*10 + (*z - '0');
+    z++, nDigits++;
+  }
+
+  /* skip non-significant significand digits
+  ** (increase exponent by d to shift decimal left) */
+  while( z<zEnd && totypeIsdigit(*z) ) z++, nDigits++, d++;
+  if( z>=zEnd ) goto totype_atof_calc;
+
+  /* if decimal point is present */
+  if( *z=='.' ){
+    z++;
+    /* copy digits from after decimal to significand
+    ** (decrease exponent by d to shift decimal right) */
+    while( z<zEnd && totypeIsdigit(*z) && s<((LARGEST_INT64-9)/10) ){
+      s = s*10 + (*z - '0');
+      z++, nDigits++, d--;
+    }
+    /* skip non-significant digits */
+    while( z<zEnd && totypeIsdigit(*z) ) z++, nDigits++;
+  }
+  if( z>=zEnd ) goto totype_atof_calc;
+
+  /* if exponent is present */
+  if( *z=='e' || *z=='E' ){
+    z++;
+    eValid = 0;
+    if( z>=zEnd ) goto totype_atof_calc;
+    /* get sign of exponent */
+    if( *z=='-' ){
+      esign = -1;
+      z++;
+    }else if( *z=='+' ){
+      z++;
+    }
+    /* copy digits to exponent */
+    while( z<zEnd && totypeIsdigit(*z) ){
+      e = e<10000 ? (e*10 + (*z - '0')) : 10000;
+      z++;
+      eValid = 1;
+    }
+  }
+
+  /* skip trailing spaces */
+  if( nDigits && eValid ){
+    while( z<zEnd && totypeIsspace(*z) ) z++;
+  }
+
+totype_atof_calc:
+  /* adjust exponent by d, and update sign */
+  e = (e*esign) + d;
+  if( e<0 ) {
+    esign = -1;
+    e *= -1;
+  } else {
+    esign = 1;
+  }
+
+  /* if 0 significand */
+  if( !s ) {
+    /* In the IEEE 754 standard, zero is signed.
+    ** Add the sign if we've seen at least one digit */
+    result = (sign<0 && nDigits) ? -(double)0 : (double)0;
+  } else {
+    /* attempt to reduce exponent */
+    if( esign>0 ){
+      while( s<(LARGEST_INT64/10) && e>0 ) e--,s*=10;
+    }else{
+      while( !(s%10) && e>0 ) e--,s/=10;
+    }
+
+    /* adjust the sign of significand */
+    s = sign<0 ? -s : s;
+
+    /* if exponent, scale significand as appropriate
+    ** and store in result. */
+    if( e ){
+      double scale = 1.0;
+      /* attempt to handle extremely small/large numbers better */
+      if( e>307 && e<342 ){
+        while( e%308 ) { scale *= 1.0e+1; e -= 1; }
+        if( esign<0 ){
+          result = s / scale;
+          result /= 1.0e+308;
+        }else{
+          result = s * scale;
+          result *= 1.0e+308;
+        }
+      }else if( e>=342 ){
+        if( esign<0 ){
+          result = 0.0*s;
+        }else{
+          result = 1e308*1e308*s;  /* Infinity */
+        }
+      }else{
+        /* 1.0e+22 is the largest power of 10 than can be
+        ** represented exactly. */
+        while( e%22 ) { scale *= 1.0e+1; e -= 1; }
+        while( e>0 ) { scale *= 1.0e+22; e -= 22; }
+        if( esign<0 ){
+          result = s / scale;
+        }else{
+          result = s * scale;
+        }
+      }
+    } else {
+      result = (double)s;
+    }
+  }
+
+  /* store the result */
+  *pResult = result;
+
+  /* return true if number and no extra non-whitespace chracters after */
+  return z>=zEnd && nDigits>0 && eValid && nonNum==0;
+}
+
+/* 
+** Convert a floating point value to an integer. Or, if this cannot be
+** done in a way that avoids 'outside the range of representable values' 
+** warnings from UBSAN, return 0.
+**
+** This function is a modified copy of internal SQLite function
+** sqlite3RealToI64().
+*/
+static sqlite3_int64 totypeDoubleToInt(double r){
+  if( r<-9223372036854774784.0 ) return 0;
+  if( r>+9223372036854774784.0 ) return 0;
+  return (sqlite3_int64)r;
+}
+
+/*
+** tointeger(X):  If X is any value (integer, double, blob, or string) that
+** can be losslessly converted into an integer, then make the conversion and
+** return the result.  Otherwise, return NULL.
+*/
+static void tointegerFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  assert( argc==1 );
+  (void)argc;
+  switch( sqlite3_value_type(argv[0]) ){
+    case SQLITE_FLOAT: {
+      double rVal = sqlite3_value_double(argv[0]);
+      sqlite3_int64 iVal = totypeDoubleToInt(rVal);
+      if( rVal==(double)iVal ){
+        sqlite3_result_int64(context, iVal);
+      }
+      break;
+    }
+    case SQLITE_INTEGER: {
+      sqlite3_result_int64(context, sqlite3_value_int64(argv[0]));
+      break;
+    }
+    case SQLITE_BLOB: {
+      const unsigned char *zBlob = sqlite3_value_blob(argv[0]);
+      if( zBlob ){
+        int nBlob = sqlite3_value_bytes(argv[0]);
+        if( nBlob==sizeof(sqlite3_int64) ){
+          sqlite3_int64 iVal;
+          if( TOTYPE_BIGENDIAN ){
+            int i;
+            unsigned char zBlobRev[sizeof(sqlite3_int64)];
+            for(i=0; i<sizeof(sqlite3_int64); i++){
+              zBlobRev[i] = zBlob[sizeof(sqlite3_int64)-1-i];
+            }
+            memcpy(&iVal, zBlobRev, sizeof(sqlite3_int64));
+          }else{
+            memcpy(&iVal, zBlob, sizeof(sqlite3_int64));
+          }
+          sqlite3_result_int64(context, iVal);
+        }
+      }
+      break;
+    }
+    case SQLITE_TEXT: {
+      const unsigned char *zStr = sqlite3_value_text(argv[0]);
+      if( zStr ){
+        int nStr = sqlite3_value_bytes(argv[0]);
+        if( nStr && !totypeIsspace(zStr[0]) ){
+          sqlite3_int64 iVal;
+          if( !totypeAtoi64((const char*)zStr, &iVal, nStr) ){
+            sqlite3_result_int64(context, iVal);
+          }
+        }
+      }
+      break;
+    }
+    default: {
+      assert( sqlite3_value_type(argv[0])==SQLITE_NULL );
+      break;
+    }
+  }
+}
+
+/*
+** toreal(X): If X is any value (integer, double, blob, or string) that can
+** be losslessly converted into a real number, then do so and return that
+** real number.  Otherwise return NULL.
+*/
+#if defined(_MSC_VER)
+#pragma warning(disable: 4748)
+#pragma optimize("", off)
+#endif
+static void torealFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  assert( argc==1 );
+  (void)argc;
+  switch( sqlite3_value_type(argv[0]) ){
+    case SQLITE_FLOAT: {
+      sqlite3_result_double(context, sqlite3_value_double(argv[0]));
+      break;
+    }
+    case SQLITE_INTEGER: {
+      sqlite3_int64 iVal = sqlite3_value_int64(argv[0]);
+      double rVal = (double)iVal;
+      if( iVal==totypeDoubleToInt(rVal) ){
+        sqlite3_result_double(context, rVal);
+      }
+      break;
+    }
+    case SQLITE_BLOB: {
+      const unsigned char *zBlob = sqlite3_value_blob(argv[0]);
+      if( zBlob ){
+        int nBlob = sqlite3_value_bytes(argv[0]);
+        if( nBlob==sizeof(double) ){
+          double rVal;
+          if( TOTYPE_LITTLEENDIAN ){
+            int i;
+            unsigned char zBlobRev[sizeof(double)];
+            for(i=0; i<sizeof(double); i++){
+              zBlobRev[i] = zBlob[sizeof(double)-1-i];
+            }
+            memcpy(&rVal, zBlobRev, sizeof(double));
+          }else{
+            memcpy(&rVal, zBlob, sizeof(double));
+          }
+          sqlite3_result_double(context, rVal);
+        }
+      }
+      break;
+    }
+    case SQLITE_TEXT: {
+      const unsigned char *zStr = sqlite3_value_text(argv[0]);
+      if( zStr ){
+        int nStr = sqlite3_value_bytes(argv[0]);
+        if( nStr && !totypeIsspace(zStr[0]) && !totypeIsspace(zStr[nStr-1]) ){
+          double rVal;
+          if( totypeAtoF((const char*)zStr, &rVal, nStr) ){
+            sqlite3_result_double(context, rVal);
+            return;
+          }
+        }
+      }
+      break;
+    }
+    default: {
+      assert( sqlite3_value_type(argv[0])==SQLITE_NULL );
+      break;
+    }
+  }
+}
+#if defined(_MSC_VER)
+#pragma optimize("", on)
+#pragma warning(default: 4748)
+#endif
+
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_totype_init(
+  sqlite3 *db,
+  char **pzErrMsg,
+  const sqlite3_api_routines *pApi
+){
+  int rc = SQLITE_OK;
+  SQLITE_EXTENSION_INIT2(pApi);
+  (void)pzErrMsg;  /* Unused parameter */
+  rc = sqlite3_create_function(db, "tointeger", 1,
+        SQLITE_UTF8 | SQLITE_DETERMINISTIC | SQLITE_INNOCUOUS, 0,
+        tointegerFunc, 0, 0);
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_function(db, "toreal", 1,
+        SQLITE_UTF8 | SQLITE_DETERMINISTIC | SQLITE_INNOCUOUS, 0,
+        torealFunc, 0, 0);
+  }
+  return rc;
+}
diff --git a/ext/misc/uint.c b/ext/misc/uint.c
new file mode 100644
index 0000000000000000000000000000000000000000..286314fefa94fed9e38a09d699aa1d8bee193443
--- /dev/null
+++ b/ext/misc/uint.c
@@ -0,0 +1,92 @@
+/*
+** 2020-04-14
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This SQLite extension implements the UINT collating sequence.
+**
+** UINT works like BINARY for text, except that embedded strings
+** of digits compare in numeric order.
+**
+**     *   Leading zeros are handled properly, in the sense that
+**         they do not mess of the maginitude comparison of embedded
+**         strings of digits.  "x00123y" is equal to "x123y".
+**
+**     *   Only unsigned integers are recognized.  Plus and minus
+**         signs are ignored.  Decimal points and exponential notation
+**         are ignored.
+**
+**     *   Embedded integers can be of arbitrary length.  Comparison
+**         is *not* limited integers that can be expressed as a
+**         64-bit machine integer.
+*/
+#include "sqlite3ext.h"
+SQLITE_EXTENSION_INIT1
+#include <assert.h>
+#include <string.h>
+#include <ctype.h>
+
+/*
+** Compare text in lexicographic order, except strings of digits
+** compare in numeric order.
+*/
+static int uintCollFunc(
+  void *notUsed,
+  int nKey1, const void *pKey1,
+  int nKey2, const void *pKey2
+){
+  const unsigned char *zA = (const unsigned char*)pKey1;
+  const unsigned char *zB = (const unsigned char*)pKey2;
+  int i=0, j=0, x;
+  (void)notUsed;
+  while( i<nKey1 && j<nKey2 ){
+    x = zA[i] - zB[j];
+    if( isdigit(zA[i]) ){
+      int k;
+      if( !isdigit(zB[j]) ) return x;
+      while( i<nKey1 && zA[i]=='0' ){ i++; }
+      while( j<nKey2 && zB[j]=='0' ){ j++; }
+      k = 0;
+      while( i+k<nKey1 && isdigit(zA[i+k])
+             && j+k<nKey2 && isdigit(zB[j+k]) ){
+        k++;
+      }
+      if( i+k<nKey1 && isdigit(zA[i+k]) ){
+        return +1;
+      }else if( j+k<nKey2 && isdigit(zB[j+k]) ){
+        return -1;
+      }else{
+        x = memcmp(zA+i, zB+j, k);
+        if( x ) return x;
+        i += k;
+        j += k;
+      }
+    }else if( x ){
+      return x;
+    }else{
+      i++;
+      j++;
+    }
+  }
+  return (nKey1 - i) - (nKey2 - j);
+}
+
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_uint_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  SQLITE_EXTENSION_INIT2(pApi);
+  (void)pzErrMsg;  /* Unused parameter */
+  return sqlite3_create_collation(db, "uint", SQLITE_UTF8, 0, uintCollFunc);
+}
diff --git a/ext/misc/unionvtab.c b/ext/misc/unionvtab.c
new file mode 100644
index 0000000000000000000000000000000000000000..506ad5ddbaa954297bad6324f9e4e7156c426dfd
--- /dev/null
+++ b/ext/misc/unionvtab.c
@@ -0,0 +1,1383 @@
+/*
+** 2017 July 15
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** This file contains the implementation of the "unionvtab" and "swarmvtab"
+** virtual tables. These modules provide read-only access to multiple tables,
+** possibly in multiple database files, via a single database object.
+** The source tables must have the following characteristics:
+**
+**   * They must all be rowid tables (not VIRTUAL or WITHOUT ROWID
+**     tables or views).
+**
+**   * Each table must have the same set of columns, declared in
+**     the same order and with the same declared types.
+**
+**   * The tables must not feature a user-defined column named "_rowid_".
+**
+**   * Each table must contain a distinct range of rowid values.
+**
+** The difference between the two virtual table modules is that for 
+** "unionvtab", all source tables must be located in the main database or
+** in databases ATTACHed to the main database by the user. For "swarmvtab",
+** the tables may be located in any database file on disk. The "swarmvtab"
+** implementation takes care of opening and closing database files
+** automatically.
+**
+** UNIONVTAB
+**
+**   A "unionvtab" virtual table is created as follows:
+**
+**     CREATE VIRTUAL TABLE <name> USING unionvtab(<sql-statement>);
+**
+**   The implementation evalutes <sql statement> whenever a unionvtab virtual
+**   table is created or opened. It should return one row for each source
+**   database table. The four columns required of each row are:
+**
+**     1. The name of the database containing the table ("main" or "temp" or
+**        the name of an attached database). Or NULL to indicate that all
+**        databases should be searched for the table in the usual fashion.
+**
+**     2. The name of the database table.
+**
+**     3. The smallest rowid in the range of rowids that may be stored in the
+**        database table (an integer).
+**
+**     4. The largest rowid in the range of rowids that may be stored in the
+**        database table (an integer).
+**
+** SWARMVTAB
+**
+**  LEGACY SYNTAX:
+**
+**   A "swarmvtab" virtual table is created similarly to a unionvtab table:
+**
+**     CREATE VIRTUAL TABLE <name>
+**      USING swarmvtab(<sql-statement>, <callback>);
+**
+**   The difference is that for a swarmvtab table, the first column returned
+**   by the <sql statement> must return a path or URI that can be used to open
+**   the database file containing the source table.  The <callback> option
+**   is optional.  If included, it is the name of an application-defined
+**   SQL function that is invoked with the URI of the file, if the file
+**   does not already exist on disk when required by swarmvtab.
+**
+**  NEW SYNTAX:
+**
+**   Using the new syntax, a swarmvtab table is created with:
+**
+**      CREATE VIRTUAL TABLE <name> USING swarmvtab(
+**        <sql-statement> [, <options>]
+**      );
+**
+**   where valid <options> are:
+**
+**      missing=<udf-function-name>
+**      openclose=<udf-function-name>
+**      maxopen=<integer>
+**      <sql-parameter>=<text-value>
+**
+**   The <sql-statement> must return the same 4 columns as for a swarmvtab
+**   table in legacy mode. However, it may also return a 5th column - the
+**   "context" column. The text value returned in this column is not used
+**   at all by the swarmvtab implementation, except that it is passed as
+**   an additional argument to the two UDF functions that may be invoked
+**   (see below).
+**
+**   The "missing" option, if present, specifies the name of an SQL UDF
+**   function to be invoked if a database file is not already present on
+**   disk when required by swarmvtab. If the <sql-statement> did not provide
+**   a context column, it is invoked as:
+**
+**     SELECT <missing-udf>(<database filename/uri>);
+**
+**   Or, if there was a context column:
+**
+**     SELECT <missing-udf>(<database filename/uri>, <context>);
+**
+**   The "openclose" option may also specify a UDF function. This function
+**   is invoked right before swarmvtab opens a database, and right after
+**   it closes one. The first argument - or first two arguments, if
+**   <sql-statement> supplied the context column - is the same as for
+**   the "missing" UDF. Following this, the UDF is passed integer value
+**   0 before a db is opened, and 1 right after it is closed. If both
+**   a missing and openclose UDF is supplied, the application should expect
+**   the following sequence of calls (for a single database):
+**
+**      SELECT <openclose-udf>(<db filename>, <context>, 0);
+**      if( db not already on disk ){
+**          SELECT <missing-udf>(<db filename>, <context>);
+**      }
+**      ... swarmvtab uses database ...
+**      SELECT <openclose-udf>(<db filename>, <context>, 1);
+**
+**   The "maxopen" option is used to configure the maximum number of
+**   database files swarmvtab will hold open simultaneously (default 9).
+**
+**   If an option name begins with a ":" character, then it is assumed
+**   to be an SQL parameter. In this case, the specified text value is
+**   bound to the same variable of the <sql-statement> before it is 
+**   executed. It is an error of the named SQL parameter does not exist.
+**   For example:
+**
+**     CREATE VIRTUAL TABLE swarm USING swarmvtab(
+**       'SELECT :path || localfile, tbl, min, max FROM swarmdir',
+**       :path='/home/user/databases/'
+**       missing='missing_func'
+**     );
+*/
+
+#include "sqlite3ext.h"
+SQLITE_EXTENSION_INIT1
+#include <assert.h>
+#include <string.h>
+#include <stdlib.h>
+
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+
+/*
+** Largest and smallest possible 64-bit signed integers. These macros
+** copied from sqliteInt.h.
+*/
+#ifndef LARGEST_INT64
+# define LARGEST_INT64  (0xffffffff|(((sqlite3_int64)0x7fffffff)<<32))
+#endif
+#ifndef SMALLEST_INT64
+# define SMALLEST_INT64 (((sqlite3_int64)-1) - LARGEST_INT64)
+#endif
+
+/*
+** The following is also copied from sqliteInt.h. To facilitate coverage
+** testing.
+*/
+#ifndef ALWAYS
+# if defined(SQLITE_COVERAGE_TEST) || defined(SQLITE_MUTATION_TEST)
+#  define ALWAYS(X)      (1)
+#  define NEVER(X)       (0)
+# elif !defined(NDEBUG)
+#  define ALWAYS(X)      ((X)?1:(assert(0),0))
+#  define NEVER(X)       ((X)?(assert(0),1):0)
+# else
+#  define ALWAYS(X)      (X)
+#  define NEVER(X)       (X)
+# endif
+#endif
+
+/*
+** The swarmvtab module attempts to keep the number of open database files
+** at or below this limit. This may not be possible if there are too many
+** simultaneous queries.
+*/
+#define SWARMVTAB_MAX_OPEN 9
+
+typedef struct UnionCsr UnionCsr;
+typedef struct UnionTab UnionTab;
+typedef struct UnionSrc UnionSrc;
+
+/*
+** Each source table (row returned by the initialization query) is 
+** represented by an instance of the following structure stored in the
+** UnionTab.aSrc[] array.
+*/
+struct UnionSrc {
+  char *zDb;                      /* Database containing source table */
+  char *zTab;                     /* Source table name */
+  sqlite3_int64 iMin;             /* Minimum rowid */
+  sqlite3_int64 iMax;             /* Maximum rowid */
+
+  /* Fields used by swarmvtab only */
+  char *zFile;                    /* Database file containing table zTab */
+  char *zContext;                 /* Context string, if any */
+  int nUser;                      /* Current number of users */
+  sqlite3 *db;                    /* Database handle */
+  UnionSrc *pNextClosable;        /* Next in list of closable sources */
+};
+
+/*
+** Virtual table  type for union vtab.
+*/
+struct UnionTab {
+  sqlite3_vtab base;              /* Base class - must be first */
+  sqlite3 *db;                    /* Database handle */
+  int bSwarm;                     /* 1 for "swarmvtab", 0 for "unionvtab" */
+  int iPK;                        /* INTEGER PRIMARY KEY column, or -1 */
+  int nSrc;                       /* Number of elements in the aSrc[] array */
+  UnionSrc *aSrc;                 /* Array of source tables, sorted by rowid */
+
+  /* Used by swarmvtab only */
+  int bHasContext;                /* Has context strings */
+  char *zSourceStr;               /* Expected unionSourceToStr() value */
+  sqlite3_stmt *pNotFound;        /* UDF to invoke if file not found on open */
+  sqlite3_stmt *pOpenClose;       /* UDF to invoke on open and close */
+
+  UnionSrc *pClosable;            /* First in list of closable sources */
+  int nOpen;                      /* Current number of open sources */
+  int nMaxOpen;                   /* Maximum number of open sources */
+};
+
+/*
+** Virtual table cursor type for union vtab.
+*/
+struct UnionCsr {
+  sqlite3_vtab_cursor base;       /* Base class - must be first */
+  sqlite3_stmt *pStmt;            /* SQL statement to run */
+
+  /* Used by swarmvtab only */
+  sqlite3_int64 iMaxRowid;        /* Last rowid to visit */
+  int iTab;                       /* Index of table read by pStmt */
+};
+
+/*
+** Given UnionTab table pTab and UnionSrc object pSrc, return the database
+** handle that should be used to access the table identified by pSrc. This
+** is the main db handle for "unionvtab" tables, or the source-specific 
+** handle for "swarmvtab".
+*/
+#define unionGetDb(pTab, pSrc) ((pTab)->bSwarm ? (pSrc)->db : (pTab)->db)
+
+/*
+** If *pRc is other than SQLITE_OK when this function is called, it
+** always returns NULL. Otherwise, it attempts to allocate and return
+** a pointer to nByte bytes of zeroed memory. If the memory allocation
+** is attempted but fails, NULL is returned and *pRc is set to 
+** SQLITE_NOMEM.
+*/
+static void *unionMalloc(int *pRc, sqlite3_int64 nByte){
+  void *pRet;
+  assert( nByte>0 );
+  if( *pRc==SQLITE_OK ){
+    pRet = sqlite3_malloc64(nByte);
+    if( pRet ){
+      memset(pRet, 0, (size_t)nByte);
+    }else{
+      *pRc = SQLITE_NOMEM;
+    }
+  }else{
+    pRet = 0;
+  }
+  return pRet;
+}
+
+/*
+** If *pRc is other than SQLITE_OK when this function is called, it
+** always returns NULL. Otherwise, it attempts to allocate and return
+** a copy of the nul-terminated string passed as the second argument.
+** If the allocation is attempted but fails, NULL is returned and *pRc is 
+** set to SQLITE_NOMEM.
+*/
+static char *unionStrdup(int *pRc, const char *zIn){
+  char *zRet = 0;
+  if( zIn ){
+    sqlite3_int64 nByte = strlen(zIn) + 1;
+    zRet = unionMalloc(pRc, nByte);
+    if( zRet ){
+      memcpy(zRet, zIn, (size_t)nByte);
+    }
+  }
+  return zRet;
+}
+
+/*
+** If the first character of the string passed as the only argument to this
+** function is one of the 4 that may be used as an open quote character
+** in SQL, this function assumes that the input is a well-formed quoted SQL 
+** string. In this case the string is dequoted in place.
+**
+** If the first character of the input is not an open quote, then this
+** function is a no-op.
+*/
+static void unionDequote(char *z){
+  if( z ){
+    char q = z[0];
+
+    /* Set stack variable q to the close-quote character */
+    if( q=='[' || q=='\'' || q=='"' || q=='`' ){
+      int iIn = 1;
+      int iOut = 0;
+      if( q=='[' ) q = ']';  
+      while( ALWAYS(z[iIn]) ){
+        if( z[iIn]==q ){
+          if( z[iIn+1]!=q ){
+            /* Character iIn was the close quote. */
+            iIn++;
+            break;
+          }else{
+            /* Character iIn and iIn+1 form an escaped quote character. Skip
+            ** the input cursor past both and copy a single quote character 
+            ** to the output buffer. */
+            iIn += 2;
+            z[iOut++] = q;
+          }
+        }else{
+          z[iOut++] = z[iIn++];
+        }
+      }
+      z[iOut] = '\0';
+    }
+  }
+}
+
+/*
+** This function is a no-op if *pRc is set to other than SQLITE_OK when it
+** is called. NULL is returned in this case.
+**
+** Otherwise, the SQL statement passed as the third argument is prepared
+** against the database handle passed as the second. If the statement is
+** successfully prepared, a pointer to the new statement handle is 
+** returned. It is the responsibility of the caller to eventually free the
+** statement by calling sqlite3_finalize(). Alternatively, if statement
+** compilation fails, NULL is returned, *pRc is set to an SQLite error
+** code and *pzErr may be set to an error message buffer allocated by
+** sqlite3_malloc().
+*/
+static sqlite3_stmt *unionPrepare(
+  int *pRc,                       /* IN/OUT: Error code */
+  sqlite3 *db,                    /* Database handle */
+  const char *zSql,               /* SQL statement to prepare */
+  char **pzErr                    /* OUT: Error message */
+){
+  sqlite3_stmt *pRet = 0;
+  assert( pzErr );
+  if( *pRc==SQLITE_OK ){
+    int rc = sqlite3_prepare_v2(db, zSql, -1, &pRet, 0);
+    if( rc!=SQLITE_OK ){
+      *pzErr = sqlite3_mprintf("sql error: %s", sqlite3_errmsg(db));
+      *pRc = rc;
+    }
+  }
+  return pRet;
+}
+
+/*
+** Like unionPrepare(), except prepare the results of vprintf(zFmt, ...)
+** instead of a constant SQL string.
+*/
+static sqlite3_stmt *unionPreparePrintf(
+  int *pRc,                       /* IN/OUT: Error code */
+  char **pzErr,                   /* OUT: Error message */
+  sqlite3 *db,                    /* Database handle */
+  const char *zFmt,               /* printf() format string */
+  ...                             /* Trailing printf args */
+){
+  sqlite3_stmt *pRet = 0;
+  char *zSql;
+  va_list ap;
+  va_start(ap, zFmt);
+
+  zSql = sqlite3_vmprintf(zFmt, ap);
+  if( *pRc==SQLITE_OK ){
+    if( zSql==0 ){
+      *pRc = SQLITE_NOMEM;
+    }else{
+      pRet = unionPrepare(pRc, db, zSql, pzErr);
+    }
+  }
+  sqlite3_free(zSql);
+
+  va_end(ap);
+  return pRet;
+}
+
+
+/*
+** Call sqlite3_reset() on SQL statement pStmt. If *pRc is set to 
+** SQLITE_OK when this function is called, then it is set to the
+** value returned by sqlite3_reset() before this function exits.
+** In this case, *pzErr may be set to point to an error message
+** buffer allocated by sqlite3_malloc().
+*/
+#if 0
+static void unionReset(int *pRc, sqlite3_stmt *pStmt, char **pzErr){
+  int rc = sqlite3_reset(pStmt);
+  if( *pRc==SQLITE_OK ){
+    *pRc = rc;
+    if( rc ){
+      *pzErr = sqlite3_mprintf("%s", sqlite3_errmsg(sqlite3_db_handle(pStmt)));
+    }
+  }
+}
+#endif
+
+/*
+** Call sqlite3_finalize() on SQL statement pStmt. If *pRc is set to 
+** SQLITE_OK when this function is called, then it is set to the
+** value returned by sqlite3_finalize() before this function exits.
+*/
+static void unionFinalize(int *pRc, sqlite3_stmt *pStmt, char **pzErr){
+  sqlite3 *db = sqlite3_db_handle(pStmt);
+  int rc = sqlite3_finalize(pStmt);
+  if( *pRc==SQLITE_OK ){
+    *pRc = rc;
+    if( rc ){
+      *pzErr = sqlite3_mprintf("%s", sqlite3_errmsg(db));
+    }
+  }
+}
+
+/*
+** If an "openclose" UDF was supplied when this virtual table was created,
+** invoke it now. The first argument passed is the name of the database
+** file for source pSrc. The second is integer value bClose.
+**
+** If successful, return SQLITE_OK. Otherwise an SQLite error code. In this
+** case if argument pzErr is not NULL, also set (*pzErr) to an English
+** language error message. The caller is responsible for eventually freeing 
+** any error message using sqlite3_free().
+*/
+static int unionInvokeOpenClose(
+  UnionTab *pTab, 
+  UnionSrc *pSrc, 
+  int bClose,
+  char **pzErr
+){
+  int rc = SQLITE_OK;
+  if( pTab->pOpenClose ){
+    sqlite3_bind_text(pTab->pOpenClose, 1, pSrc->zFile, -1, SQLITE_STATIC);
+    if( pTab->bHasContext ){
+      sqlite3_bind_text(pTab->pOpenClose, 2, pSrc->zContext, -1, SQLITE_STATIC);
+    }
+    sqlite3_bind_int(pTab->pOpenClose, 2+pTab->bHasContext, bClose);
+    sqlite3_step(pTab->pOpenClose);
+    if( SQLITE_OK!=(rc = sqlite3_reset(pTab->pOpenClose)) ){
+      if( pzErr ){
+        *pzErr = sqlite3_mprintf("%s", sqlite3_errmsg(pTab->db));
+      }
+    }
+  }
+  return rc;
+}
+
+/*
+** This function is a no-op for unionvtab. For swarmvtab, it attempts to
+** close open database files until at most nMax are open. An SQLite error
+** code is returned if an error occurs, or SQLITE_OK otherwise.
+*/
+static void unionCloseSources(UnionTab *pTab, int nMax){
+  while( pTab->pClosable && pTab->nOpen>nMax ){
+    UnionSrc *p;
+    UnionSrc **pp;
+    for(pp=&pTab->pClosable; (*pp)->pNextClosable; pp=&(*pp)->pNextClosable);
+    p = *pp;
+    assert( p->db );
+    sqlite3_close(p->db);
+    p->db = 0;
+    *pp = 0;
+    pTab->nOpen--;
+    unionInvokeOpenClose(pTab, p, 1, 0);
+  }
+}
+
+/*
+** xDisconnect method.
+*/
+static int unionDisconnect(sqlite3_vtab *pVtab){
+  if( pVtab ){
+    UnionTab *pTab = (UnionTab*)pVtab;
+    int i;
+    for(i=0; i<pTab->nSrc; i++){
+      UnionSrc *pSrc = &pTab->aSrc[i];
+      int bHaveSrcDb = (pSrc->db!=0);
+      sqlite3_close(pSrc->db);
+      if( bHaveSrcDb ){
+        unionInvokeOpenClose(pTab, pSrc, 1, 0);
+      }
+      sqlite3_free(pSrc->zDb);
+      sqlite3_free(pSrc->zTab);
+      sqlite3_free(pSrc->zFile);
+      sqlite3_free(pSrc->zContext);
+    }
+    sqlite3_finalize(pTab->pNotFound);
+    sqlite3_finalize(pTab->pOpenClose);
+    sqlite3_free(pTab->zSourceStr);
+    sqlite3_free(pTab->aSrc);
+    sqlite3_free(pTab);
+  }
+  return SQLITE_OK;
+}
+
+/*
+** Check that the table identified by pSrc is a rowid table. If not,
+** return SQLITE_ERROR and set (*pzErr) to point to an English language
+** error message. If the table is a rowid table and no error occurs,
+** return SQLITE_OK and leave (*pzErr) unmodified.
+*/
+static int unionIsIntkeyTable(
+  sqlite3 *db,                    /* Database handle */
+  UnionSrc *pSrc,                 /* Source table to test */
+  char **pzErr                    /* OUT: Error message */
+){
+  int bPk = 0;
+  const char *zType = 0;
+  int rc;
+
+  sqlite3_table_column_metadata(
+      db, pSrc->zDb, pSrc->zTab, "_rowid_", &zType, 0, 0, &bPk, 0
+  );
+  rc = sqlite3_errcode(db);
+  if( rc==SQLITE_ERROR 
+   || (rc==SQLITE_OK && (!bPk || sqlite3_stricmp("integer", zType)))
+  ){
+    rc = SQLITE_ERROR;
+    *pzErr = sqlite3_mprintf("no such rowid table: %s%s%s",
+        (pSrc->zDb ? pSrc->zDb : ""),
+        (pSrc->zDb ? "." : ""),
+        pSrc->zTab
+    );
+  }
+  return rc;
+}
+
+/*
+** This function is a no-op if *pRc is other than SQLITE_OK when it is
+** called. In this case it returns NULL.
+**
+** Otherwise, this function checks that the source table passed as the
+** second argument (a) exists, (b) is not a view and (c) has a column 
+** named "_rowid_" of type "integer" that is the primary key.
+** If this is not the case, *pRc is set to SQLITE_ERROR and NULL is
+** returned.
+**
+** Finally, if the source table passes the checks above, a nul-terminated
+** string describing the column names and types belonging to the source
+** table is returned. Tables with the same set of column names and types 
+** cause this function to return identical strings. Is is the responsibility
+** of the caller to free the returned string using sqlite3_free() when
+** it is no longer required.
+*/
+static char *unionSourceToStr(
+  int *pRc,                       /* IN/OUT: Error code */
+  UnionTab *pTab,                 /* Virtual table object */
+  UnionSrc *pSrc,                 /* Source table to test */
+  char **pzErr                    /* OUT: Error message */
+){
+  char *zRet = 0;
+  if( *pRc==SQLITE_OK ){
+    sqlite3 *db = unionGetDb(pTab, pSrc);
+    int rc = unionIsIntkeyTable(db, pSrc, pzErr);
+    sqlite3_stmt *pStmt = unionPrepare(&rc, db, 
+        "SELECT group_concat(quote(name) || '.' || quote(type)) "
+        "FROM pragma_table_info(?, ?)", pzErr
+    );
+    if( rc==SQLITE_OK ){
+      sqlite3_bind_text(pStmt, 1, pSrc->zTab, -1, SQLITE_STATIC);
+      sqlite3_bind_text(pStmt, 2, pSrc->zDb, -1, SQLITE_STATIC);
+      if( SQLITE_ROW==sqlite3_step(pStmt) ){
+        const char *z = (const char*)sqlite3_column_text(pStmt, 0);
+        zRet = unionStrdup(&rc, z);
+      }
+      unionFinalize(&rc, pStmt, pzErr);
+    }
+    *pRc = rc;
+  }
+
+  return zRet;
+}
+
+/*
+** Check that all configured source tables exist and have the same column
+** names and datatypes. If this is not the case, or if some other error
+** occurs, return an SQLite error code. In this case *pzErr may be set
+** to point to an error message buffer allocated by sqlite3_mprintf().
+** Or, if no problems regarding the source tables are detected and no
+** other error occurs, SQLITE_OK is returned.
+*/
+static int unionSourceCheck(UnionTab *pTab, char **pzErr){
+  int rc = SQLITE_OK;
+  char *z0 = 0;
+  int i;
+
+  assert( *pzErr==0 );
+  z0 = unionSourceToStr(&rc, pTab, &pTab->aSrc[0], pzErr);
+  for(i=1; i<pTab->nSrc; i++){
+    char *z = unionSourceToStr(&rc, pTab, &pTab->aSrc[i], pzErr);
+    if( rc==SQLITE_OK && sqlite3_stricmp(z, z0) ){
+      *pzErr = sqlite3_mprintf("source table schema mismatch");
+      rc = SQLITE_ERROR;
+    }
+    sqlite3_free(z);
+  }
+  sqlite3_free(z0);
+
+  return rc;
+}
+
+/*
+** Try to open the swarmvtab database.  If initially unable, invoke the
+** not-found callback UDF and then try again.
+*/
+static int unionOpenDatabaseInner(UnionTab *pTab, UnionSrc *pSrc, char **pzErr){
+  static const int openFlags = SQLITE_OPEN_READONLY | SQLITE_OPEN_URI;
+  int rc;
+
+  rc = unionInvokeOpenClose(pTab, pSrc, 0, pzErr);
+  if( rc!=SQLITE_OK ) return rc;
+
+  rc = sqlite3_open_v2(pSrc->zFile, &pSrc->db, openFlags, 0);
+  if( rc==SQLITE_OK ) return rc;
+  if( pTab->pNotFound ){
+    sqlite3_close(pSrc->db);
+    pSrc->db = 0;
+    sqlite3_bind_text(pTab->pNotFound, 1, pSrc->zFile, -1, SQLITE_STATIC);
+    if( pTab->bHasContext ){
+      sqlite3_bind_text(pTab->pNotFound, 2, pSrc->zContext, -1, SQLITE_STATIC);
+    }
+    sqlite3_step(pTab->pNotFound);
+    if( SQLITE_OK!=(rc = sqlite3_reset(pTab->pNotFound)) ){
+      *pzErr = sqlite3_mprintf("%s", sqlite3_errmsg(pTab->db));
+      return rc;
+    }
+    rc = sqlite3_open_v2(pSrc->zFile, &pSrc->db, openFlags, 0);
+  }
+  if( rc!=SQLITE_OK ){
+    *pzErr = sqlite3_mprintf("%s", sqlite3_errmsg(pSrc->db));
+  }
+  return rc;
+}
+
+/*
+** This function may only be called for swarmvtab tables. The results of
+** calling it on a unionvtab table are undefined.
+**
+** For a swarmvtab table, this function ensures that source database iSrc
+** is open. If the database is opened successfully and the schema is as
+** expected, or if it is already open when this function is called, SQLITE_OK
+** is returned.
+**
+** Alternatively If an error occurs while opening the databases, or if the
+** database schema is unsuitable, an SQLite error code is returned and (*pzErr)
+** may be set to point to an English language error message. In this case it is
+** the responsibility of the caller to eventually free the error message buffer
+** using sqlite3_free(). 
+*/
+static int unionOpenDatabase(UnionTab *pTab, int iSrc, char **pzErr){
+  int rc = SQLITE_OK;
+  UnionSrc *pSrc = &pTab->aSrc[iSrc];
+
+  assert( pTab->bSwarm && iSrc<pTab->nSrc );
+  if( pSrc->db==0 ){
+    unionCloseSources(pTab, pTab->nMaxOpen-1);
+    rc = unionOpenDatabaseInner(pTab, pSrc, pzErr);
+    if( rc==SQLITE_OK ){
+      char *z = unionSourceToStr(&rc, pTab, pSrc, pzErr);
+      if( rc==SQLITE_OK ){
+        if( pTab->zSourceStr==0 ){
+          pTab->zSourceStr = z;
+        }else{
+          if( sqlite3_stricmp(z, pTab->zSourceStr) ){
+            *pzErr = sqlite3_mprintf("source table schema mismatch");
+            rc = SQLITE_ERROR;
+          }
+          sqlite3_free(z);
+        }
+      }
+    }
+
+    if( rc==SQLITE_OK ){
+      pSrc->pNextClosable = pTab->pClosable;
+      pTab->pClosable = pSrc;
+      pTab->nOpen++;
+    }else{
+      sqlite3_close(pSrc->db);
+      pSrc->db = 0;
+      unionInvokeOpenClose(pTab, pSrc, 1, 0);
+    }
+  }
+
+  return rc;
+}
+
+
+/*
+** This function is a no-op for unionvtab tables. For swarmvtab, increment 
+** the reference count for source table iTab. If the reference count was
+** zero before it was incremented, also remove the source from the closable
+** list.
+*/
+static void unionIncrRefcount(UnionTab *pTab, int iTab){
+  if( pTab->bSwarm ){
+    UnionSrc *pSrc = &pTab->aSrc[iTab];
+    assert( pSrc->nUser>=0 && pSrc->db );
+    if( pSrc->nUser==0 ){
+      UnionSrc **pp;
+      for(pp=&pTab->pClosable; *pp!=pSrc; pp=&(*pp)->pNextClosable);
+      *pp = pSrc->pNextClosable;
+      pSrc->pNextClosable = 0;
+    }
+    pSrc->nUser++;
+  }
+}
+
+/*
+** Finalize the SQL statement pCsr->pStmt and return the result.
+**
+** If this is a swarmvtab table (not unionvtab) and pCsr->pStmt was not
+** NULL when this function was called, also decrement the reference
+** count on the associated source table. If this means the source tables
+** refcount is now zero, add it to the closable list.
+*/
+static int unionFinalizeCsrStmt(UnionCsr *pCsr){
+  int rc = SQLITE_OK;
+  if( pCsr->pStmt ){
+    UnionTab *pTab = (UnionTab*)pCsr->base.pVtab;
+    UnionSrc *pSrc = &pTab->aSrc[pCsr->iTab];
+    rc = sqlite3_finalize(pCsr->pStmt);
+    pCsr->pStmt = 0;
+    if( pTab->bSwarm ){
+      pSrc->nUser--;
+      assert( pSrc->nUser>=0 );
+      if( pSrc->nUser==0 ){
+        pSrc->pNextClosable = pTab->pClosable;
+        pTab->pClosable = pSrc;
+      }
+      unionCloseSources(pTab, pTab->nMaxOpen);
+    }
+  }
+  return rc;
+}
+
+/* 
+** Return true if the argument is a space, tab, CR or LF character.
+*/
+static int union_isspace(char c){
+  return (c==' ' || c=='\n' || c=='\r' || c=='\t');
+}
+
+/* 
+** Return true if the argument is an alphanumeric character in the 
+** ASCII range.
+*/
+static int union_isidchar(char c){
+  return ((c>='a' && c<='z') || (c>='A' && c<'Z') || (c>='0' && c<='9'));
+}
+
+/*
+** This function is called to handle all arguments following the first 
+** (the SQL statement) passed to a swarmvtab (not unionvtab) CREATE 
+** VIRTUAL TABLE statement. It may bind parameters to the SQL statement 
+** or configure members of the UnionTab object passed as the second
+** argument.
+**
+** Refer to header comments at the top of this file for a description
+** of the arguments parsed.
+**
+** This function is a no-op if *pRc is other than SQLITE_OK when it is
+** called. Otherwise, if an error occurs, *pRc is set to an SQLite error
+** code. In this case *pzErr may be set to point to a buffer containing
+** an English language error message. It is the responsibility of the 
+** caller to eventually free the buffer using sqlite3_free().
+*/
+static void unionConfigureVtab(
+  int *pRc,                       /* IN/OUT: Error code */
+  UnionTab *pTab,                 /* Table to configure */
+  sqlite3_stmt *pStmt,            /* SQL statement to find sources */
+  int nArg,                       /* Number of entries in azArg[] array */
+  const char * const *azArg,      /* Array of arguments to consider */
+  char **pzErr                    /* OUT: Error message */
+){
+  int rc = *pRc;
+  int i;
+  if( rc==SQLITE_OK ){
+    pTab->bHasContext = (sqlite3_column_count(pStmt)>4);
+  }
+  for(i=0; rc==SQLITE_OK && i<nArg; i++){
+    char *zArg = unionStrdup(&rc, azArg[i]);
+    if( zArg ){
+      int nOpt = 0;               /* Size of option name in bytes */
+      char *zOpt;                 /* Pointer to option name */
+      char *zVal;                 /* Pointer to value */
+
+      unionDequote(zArg);
+      zOpt = zArg;
+      while( union_isspace(*zOpt) ) zOpt++;
+      zVal = zOpt;
+      if( *zVal==':' ) zVal++;
+      while( union_isidchar(*zVal) ) zVal++;
+      nOpt = (int)(zVal-zOpt);
+
+      while( union_isspace(*zVal) ) zVal++;
+      if( *zVal=='=' ){
+        zOpt[nOpt] = '\0';
+        zVal++;
+        while( union_isspace(*zVal) ) zVal++;
+        zVal = unionStrdup(&rc, zVal);
+        if( zVal ){
+          unionDequote(zVal);
+          if( zOpt[0]==':' ){
+            /* A value to bind to the SQL statement */
+            int iParam = sqlite3_bind_parameter_index(pStmt, zOpt);
+            if( iParam==0 ){
+              *pzErr = sqlite3_mprintf(
+                  "swarmvtab: no such SQL parameter: %s", zOpt
+              );
+              rc = SQLITE_ERROR;
+            }else{
+              rc = sqlite3_bind_text(pStmt, iParam, zVal, -1, SQLITE_TRANSIENT);
+            }
+          }else if( nOpt==7 && 0==sqlite3_strnicmp(zOpt, "maxopen", 7) ){
+            pTab->nMaxOpen = atoi(zVal);
+            if( pTab->nMaxOpen<=0 ){
+              *pzErr = sqlite3_mprintf("swarmvtab: illegal maxopen value");
+              rc = SQLITE_ERROR;
+            }
+          }else if( nOpt==7 && 0==sqlite3_strnicmp(zOpt, "missing", 7) ){
+            if( pTab->pNotFound ){
+              *pzErr = sqlite3_mprintf(
+                  "swarmvtab: duplicate \"missing\" option");
+              rc = SQLITE_ERROR;
+            }else{
+              pTab->pNotFound = unionPreparePrintf(&rc, pzErr, pTab->db,
+                  "SELECT \"%w\"(?%s)", zVal, pTab->bHasContext ? ",?" : ""
+              );
+            }
+          }else if( nOpt==9 && 0==sqlite3_strnicmp(zOpt, "openclose", 9) ){
+            if( pTab->pOpenClose ){
+              *pzErr = sqlite3_mprintf(
+                  "swarmvtab: duplicate \"openclose\" option");
+              rc = SQLITE_ERROR;
+            }else{
+              pTab->pOpenClose = unionPreparePrintf(&rc, pzErr, pTab->db,
+                  "SELECT \"%w\"(?,?%s)", zVal, pTab->bHasContext ? ",?" : ""
+              );
+            }
+          }else{
+            *pzErr = sqlite3_mprintf("swarmvtab: unrecognized option: %s",zOpt);
+            rc = SQLITE_ERROR;
+          }
+          sqlite3_free(zVal);
+        }
+      }else{
+        if( i==0 && nArg==1 ){
+          pTab->pNotFound = unionPreparePrintf(&rc, pzErr, pTab->db,
+              "SELECT \"%w\"(?)", zArg
+          );
+        }else{
+          *pzErr = sqlite3_mprintf( "swarmvtab: parse error: %s", azArg[i]);
+          rc = SQLITE_ERROR;
+        }
+      }
+      sqlite3_free(zArg);
+    }
+  }
+  *pRc = rc;
+}
+
+/* 
+** xConnect/xCreate method.
+**
+** The argv[] array contains the following:
+**
+**   argv[0]   -> module name  ("unionvtab" or "swarmvtab")
+**   argv[1]   -> database name
+**   argv[2]   -> table name
+**   argv[3]   -> SQL statement
+**   argv[4]   -> not-found callback UDF name
+*/
+static int unionConnect(
+  sqlite3 *db,
+  void *pAux,
+  int argc, const char *const*argv,
+  sqlite3_vtab **ppVtab,
+  char **pzErr
+){
+  UnionTab *pTab = 0;
+  int rc = SQLITE_OK;
+  int bSwarm = (pAux==0 ? 0 : 1);
+  const char *zVtab = (bSwarm ? "swarmvtab" : "unionvtab");
+
+  if( sqlite3_stricmp("temp", argv[1]) ){
+    /* unionvtab tables may only be created in the temp schema */
+    *pzErr = sqlite3_mprintf("%s tables must be created in TEMP schema", zVtab);
+    rc = SQLITE_ERROR;
+  }else if( argc<4 || (argc>4 && bSwarm==0) ){
+    *pzErr = sqlite3_mprintf("wrong number of arguments for %s", zVtab);
+    rc = SQLITE_ERROR;
+  }else{
+    int nAlloc = 0;               /* Allocated size of pTab->aSrc[] */
+    sqlite3_stmt *pStmt = 0;      /* Argument statement */
+    char *zArg = unionStrdup(&rc, argv[3]);      /* Copy of argument to CVT */
+
+    /* Prepare the SQL statement. Instead of executing it directly, sort
+    ** the results by the "minimum rowid" field. This makes it easier to
+    ** check that there are no rowid range overlaps between source tables 
+    ** and that the UnionTab.aSrc[] array is always sorted by rowid.  */
+    unionDequote(zArg);
+    pStmt = unionPreparePrintf(&rc, pzErr, db, 
+        "SELECT * FROM (%z) ORDER BY 3", zArg
+    );
+
+    /* Allocate the UnionTab structure */
+    pTab = unionMalloc(&rc, sizeof(UnionTab));
+    if( pTab ){
+      assert( rc==SQLITE_OK );
+      pTab->db = db;
+      pTab->bSwarm = bSwarm;
+      pTab->nMaxOpen = SWARMVTAB_MAX_OPEN;
+    }
+
+    /* Parse other CVT arguments, if any */
+    if( bSwarm ){
+      unionConfigureVtab(&rc, pTab, pStmt, argc-4, &argv[4], pzErr);
+    }
+
+    /* Iterate through the rows returned by the SQL statement specified
+    ** as an argument to the CREATE VIRTUAL TABLE statement. */
+    while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pStmt) ){
+      const char *zDb = (const char*)sqlite3_column_text(pStmt, 0);
+      const char *zTab = (const char*)sqlite3_column_text(pStmt, 1);
+      sqlite3_int64 iMin = sqlite3_column_int64(pStmt, 2);
+      sqlite3_int64 iMax = sqlite3_column_int64(pStmt, 3);
+      UnionSrc *pSrc;
+
+      /* Grow the pTab->aSrc[] array if required. */
+      if( nAlloc<=pTab->nSrc ){
+        int nNew = nAlloc ? nAlloc*2 : 8;
+        UnionSrc *aNew = (UnionSrc*)sqlite3_realloc64(
+            pTab->aSrc, nNew*sizeof(UnionSrc)
+        );
+        if( aNew==0 ){
+          rc = SQLITE_NOMEM;
+          break;
+        }else{
+          memset(&aNew[pTab->nSrc], 0, (nNew-pTab->nSrc)*sizeof(UnionSrc));
+          pTab->aSrc = aNew;
+          nAlloc = nNew;
+        }
+      }
+
+      /* Check for problems with the specified range of rowids */
+      if( iMax<iMin || (pTab->nSrc>0 && iMin<=pTab->aSrc[pTab->nSrc-1].iMax) ){
+        *pzErr = sqlite3_mprintf("rowid range mismatch error");
+        rc = SQLITE_ERROR;
+      }
+
+      if( rc==SQLITE_OK ){
+        pSrc = &pTab->aSrc[pTab->nSrc++];
+        pSrc->zTab = unionStrdup(&rc, zTab);
+        pSrc->iMin = iMin;
+        pSrc->iMax = iMax;
+        if( bSwarm ){
+          pSrc->zFile = unionStrdup(&rc, zDb);
+        }else{
+          pSrc->zDb = unionStrdup(&rc, zDb);
+        }
+        if( pTab->bHasContext ){
+          const char *zContext = (const char*)sqlite3_column_text(pStmt, 4);
+          pSrc->zContext = unionStrdup(&rc, zContext);
+        }
+      }
+    }
+    unionFinalize(&rc, pStmt, pzErr);
+    pStmt = 0;
+
+    /* It is an error if the SELECT statement returned zero rows. If only
+    ** because there is no way to determine the schema of the virtual 
+    ** table in this case.  */
+    if( rc==SQLITE_OK && pTab->nSrc==0 ){
+      *pzErr = sqlite3_mprintf("no source tables configured");
+      rc = SQLITE_ERROR;
+    }
+
+    /* For unionvtab, verify that all source tables exist and have 
+    ** compatible schemas. For swarmvtab, attach the first database and
+    ** check that the first table is a rowid table only.  */
+    if( rc==SQLITE_OK ){
+      if( bSwarm ){
+        rc = unionOpenDatabase(pTab, 0, pzErr);
+      }else{
+        rc = unionSourceCheck(pTab, pzErr);
+      }
+    }
+
+    /* Compose a CREATE TABLE statement and pass it to declare_vtab() */
+    if( rc==SQLITE_OK ){
+      UnionSrc *pSrc = &pTab->aSrc[0];
+      sqlite3 *tdb = unionGetDb(pTab, pSrc);
+      pStmt = unionPreparePrintf(&rc, pzErr, tdb, "SELECT "
+          "'CREATE TABLE xyz('"
+          "    || group_concat(quote(name) || ' ' || type, ', ')"
+          "    || ')',"
+          "max((cid+1) * (type='INTEGER' COLLATE nocase AND pk=1))-1 "
+          "FROM pragma_table_info(%Q, ?)", 
+          pSrc->zTab, pSrc->zDb
+      );
+    }
+    if( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pStmt) ){
+      const char *zDecl = (const char*)sqlite3_column_text(pStmt, 0);
+      rc = sqlite3_declare_vtab(db, zDecl);
+      pTab->iPK = sqlite3_column_int(pStmt, 1);
+    }
+
+    unionFinalize(&rc, pStmt, pzErr);
+  }
+
+  if( rc!=SQLITE_OK ){
+    unionDisconnect((sqlite3_vtab*)pTab);
+    pTab = 0;
+  }
+
+  *ppVtab = (sqlite3_vtab*)pTab;
+  return rc;
+}
+
+/*
+** xOpen
+*/
+static int unionOpen(sqlite3_vtab *p, sqlite3_vtab_cursor **ppCursor){
+  UnionCsr *pCsr;
+  int rc = SQLITE_OK;
+  (void)p;  /* Suppress harmless warning */
+  pCsr = (UnionCsr*)unionMalloc(&rc, sizeof(UnionCsr));
+  *ppCursor = &pCsr->base;
+  return rc;
+}
+
+/*
+** xClose
+*/
+static int unionClose(sqlite3_vtab_cursor *cur){
+  UnionCsr *pCsr = (UnionCsr*)cur;
+  unionFinalizeCsrStmt(pCsr);
+  sqlite3_free(pCsr);
+  return SQLITE_OK;
+}
+
+/*
+** This function does the work of the xNext() method. Except that, if it
+** returns SQLITE_ROW, it should be called again within the same xNext()
+** method call. See unionNext() for details.
+*/
+static int doUnionNext(UnionCsr *pCsr){
+  int rc = SQLITE_OK;
+  assert( pCsr->pStmt );
+  if( sqlite3_step(pCsr->pStmt)!=SQLITE_ROW ){
+    UnionTab *pTab = (UnionTab*)pCsr->base.pVtab;
+    rc = unionFinalizeCsrStmt(pCsr);
+    if( rc==SQLITE_OK && pTab->bSwarm ){
+      pCsr->iTab++;
+      if( pCsr->iTab<pTab->nSrc ){
+        UnionSrc *pSrc = &pTab->aSrc[pCsr->iTab];
+        if( pCsr->iMaxRowid>=pSrc->iMin ){
+          /* It is necessary to scan the next table. */
+          rc = unionOpenDatabase(pTab, pCsr->iTab, &pTab->base.zErrMsg);
+          pCsr->pStmt = unionPreparePrintf(&rc, &pTab->base.zErrMsg, pSrc->db,
+              "SELECT rowid, * FROM %Q %s %lld",
+              pSrc->zTab,
+              (pSrc->iMax>pCsr->iMaxRowid ? "WHERE _rowid_ <=" : "-- "),
+              pCsr->iMaxRowid
+          );
+          if( rc==SQLITE_OK ){
+            assert( pCsr->pStmt );
+            unionIncrRefcount(pTab, pCsr->iTab);
+            rc = SQLITE_ROW;
+          }
+        }
+      }
+    }
+  }
+
+  return rc;
+}
+
+/*
+** xNext
+*/
+static int unionNext(sqlite3_vtab_cursor *cur){
+  int rc;
+  do {
+    rc = doUnionNext((UnionCsr*)cur);
+  }while( rc==SQLITE_ROW );
+  return rc;
+}
+
+/*
+** xColumn
+*/
+static int unionColumn(
+  sqlite3_vtab_cursor *cur,
+  sqlite3_context *ctx,
+  int i
+){
+  UnionCsr *pCsr = (UnionCsr*)cur;
+  sqlite3_result_value(ctx, sqlite3_column_value(pCsr->pStmt, i+1));
+  return SQLITE_OK;
+}
+
+/*
+** xRowid
+*/
+static int unionRowid(sqlite3_vtab_cursor *cur, sqlite_int64 *pRowid){
+  UnionCsr *pCsr = (UnionCsr*)cur;
+  *pRowid = sqlite3_column_int64(pCsr->pStmt, 0);
+  return SQLITE_OK;
+}
+
+/*
+** xEof
+*/
+static int unionEof(sqlite3_vtab_cursor *cur){
+  UnionCsr *pCsr = (UnionCsr*)cur;
+  return pCsr->pStmt==0;
+}
+
+/*
+** xFilter
+*/
+static int unionFilter(
+  sqlite3_vtab_cursor *pVtabCursor, 
+  int idxNum, const char *idxStr,
+  int argc, sqlite3_value **argv
+){
+  UnionTab *pTab = (UnionTab*)(pVtabCursor->pVtab);
+  UnionCsr *pCsr = (UnionCsr*)pVtabCursor;
+  int rc = SQLITE_OK;
+  int i;
+  char *zSql = 0;
+  int bZero = 0;
+
+  sqlite3_int64 iMin = SMALLEST_INT64;
+  sqlite3_int64 iMax = LARGEST_INT64;
+
+  assert( idxNum==0 
+       || idxNum==SQLITE_INDEX_CONSTRAINT_EQ
+       || idxNum==SQLITE_INDEX_CONSTRAINT_LE
+       || idxNum==SQLITE_INDEX_CONSTRAINT_GE
+       || idxNum==SQLITE_INDEX_CONSTRAINT_LT
+       || idxNum==SQLITE_INDEX_CONSTRAINT_GT
+       || idxNum==(SQLITE_INDEX_CONSTRAINT_GE|SQLITE_INDEX_CONSTRAINT_LE)
+  );
+
+  (void)idxStr;  /* Suppress harmless warning */
+  
+  if( idxNum==SQLITE_INDEX_CONSTRAINT_EQ ){
+    assert( argc==1 );
+    iMin = iMax = sqlite3_value_int64(argv[0]);
+  }else{
+
+    if( idxNum & (SQLITE_INDEX_CONSTRAINT_LE|SQLITE_INDEX_CONSTRAINT_LT) ){
+      assert( argc>=1 );
+      iMax = sqlite3_value_int64(argv[0]);
+      if( idxNum & SQLITE_INDEX_CONSTRAINT_LT ){
+        if( iMax==SMALLEST_INT64 ){
+          bZero = 1;
+        }else{
+          iMax--;
+        }
+      }
+    }
+
+    if( idxNum & (SQLITE_INDEX_CONSTRAINT_GE|SQLITE_INDEX_CONSTRAINT_GT) ){
+      assert( argc>=1 );
+      iMin = sqlite3_value_int64(argv[argc-1]);
+      if( idxNum & SQLITE_INDEX_CONSTRAINT_GT ){
+        if( iMin==LARGEST_INT64 ){
+          bZero = 1;
+        }else{
+          iMin++;
+        }
+      }
+    }
+  }
+
+  unionFinalizeCsrStmt(pCsr);
+  if( bZero ){
+    return SQLITE_OK;
+  }
+
+  for(i=0; i<pTab->nSrc; i++){
+    UnionSrc *pSrc = &pTab->aSrc[i];
+    if( iMin>pSrc->iMax || iMax<pSrc->iMin ){
+      continue;
+    }
+
+    zSql = sqlite3_mprintf("%z%sSELECT rowid, * FROM %s%q%s%Q"
+        , zSql
+        , (zSql ? " UNION ALL " : "")
+        , (pSrc->zDb ? "'" : "")
+        , (pSrc->zDb ? pSrc->zDb : "")
+        , (pSrc->zDb ? "'." : "")
+        , pSrc->zTab
+    );
+    if( zSql==0 ){
+      rc = SQLITE_NOMEM;
+      break;
+    }
+
+    if( iMin==iMax ){
+      zSql = sqlite3_mprintf("%z WHERE rowid=%lld", zSql, iMin);
+    }else{
+      const char *zWhere = "WHERE";
+      if( iMin!=SMALLEST_INT64 && iMin>pSrc->iMin ){
+        zSql = sqlite3_mprintf("%z WHERE rowid>=%lld", zSql, iMin);
+        zWhere = "AND";
+      }
+      if( iMax!=LARGEST_INT64 && iMax<pSrc->iMax ){
+        zSql = sqlite3_mprintf("%z %s rowid<=%lld", zSql, zWhere, iMax);
+      }
+    }
+
+    if( pTab->bSwarm ){
+      pCsr->iTab = i;
+      pCsr->iMaxRowid = iMax;
+      rc = unionOpenDatabase(pTab, i, &pTab->base.zErrMsg);
+      break;
+    }
+  }
+
+  if( zSql==0 ){
+    return rc;
+  }else{
+    sqlite3 *db = unionGetDb(pTab, &pTab->aSrc[pCsr->iTab]);
+    pCsr->pStmt = unionPrepare(&rc, db, zSql, &pTab->base.zErrMsg);
+    if( pCsr->pStmt ){
+      unionIncrRefcount(pTab, pCsr->iTab);
+    }
+    sqlite3_free(zSql);
+  }
+  if( rc!=SQLITE_OK ) return rc;
+  return unionNext(pVtabCursor);
+}
+
+/*
+** xBestIndex.
+**
+** This implementation searches for constraints on the rowid field. EQ, 
+** LE, LT, GE and GT are handled.
+**
+** If there is an EQ comparison, then idxNum is set to INDEX_CONSTRAINT_EQ.
+** In this case the only argument passed to xFilter is the rhs of the ==
+** operator.
+**
+** Otherwise, if an LE or LT constraint is found, then the INDEX_CONSTRAINT_LE
+** or INDEX_CONSTRAINT_LT (but not both) bit is set in idxNum. The first
+** argument to xFilter is the rhs of the <= or < operator.  Similarly, if 
+** an GE or GT constraint is found, then the INDEX_CONSTRAINT_GE or
+** INDEX_CONSTRAINT_GT bit is set in idxNum. The rhs of the >= or > operator
+** is passed as either the first or second argument to xFilter, depending
+** on whether or not there is also a LT|LE constraint.
+*/
+static int unionBestIndex(
+  sqlite3_vtab *tab,
+  sqlite3_index_info *pIdxInfo
+){
+  UnionTab *pTab = (UnionTab*)tab;
+  int iEq = -1;
+  int iLt = -1;
+  int iGt = -1;
+  int i;
+
+  for(i=0; i<pIdxInfo->nConstraint; i++){
+    struct sqlite3_index_constraint *p = &pIdxInfo->aConstraint[i];
+    if( p->usable && (p->iColumn<0 || p->iColumn==pTab->iPK) ){
+      switch( p->op ){
+        case SQLITE_INDEX_CONSTRAINT_EQ:
+          iEq = i;
+          break;
+        case SQLITE_INDEX_CONSTRAINT_LE:
+        case SQLITE_INDEX_CONSTRAINT_LT:
+          iLt = i;
+          break;
+        case SQLITE_INDEX_CONSTRAINT_GE:
+        case SQLITE_INDEX_CONSTRAINT_GT:
+          iGt = i;
+          break;
+      }
+    }
+  }
+
+  if( iEq>=0 ){
+    pIdxInfo->estimatedRows = 1;
+    pIdxInfo->idxFlags = SQLITE_INDEX_SCAN_UNIQUE;
+    pIdxInfo->estimatedCost = 3.0;
+    pIdxInfo->idxNum = SQLITE_INDEX_CONSTRAINT_EQ;
+    pIdxInfo->aConstraintUsage[iEq].argvIndex = 1;
+    pIdxInfo->aConstraintUsage[iEq].omit = 1;
+  }else{
+    int iCons = 1;
+    int idxNum = 0;
+    sqlite3_int64 nRow = 1000000;
+    if( iLt>=0 ){
+      nRow = nRow / 2;
+      pIdxInfo->aConstraintUsage[iLt].argvIndex = iCons++;
+      pIdxInfo->aConstraintUsage[iLt].omit = 1;
+      idxNum |= pIdxInfo->aConstraint[iLt].op;
+    }
+    if( iGt>=0 ){
+      nRow = nRow / 2;
+      pIdxInfo->aConstraintUsage[iGt].argvIndex = iCons++;
+      pIdxInfo->aConstraintUsage[iGt].omit = 1;
+      idxNum |= pIdxInfo->aConstraint[iGt].op;
+    }
+    pIdxInfo->estimatedRows = nRow;
+    pIdxInfo->estimatedCost = 3.0 * (double)nRow;
+    pIdxInfo->idxNum = idxNum;
+  }
+
+  return SQLITE_OK;
+}
+
+/*
+** Register the unionvtab virtual table module with database handle db.
+*/
+static int createUnionVtab(sqlite3 *db){
+  static sqlite3_module unionModule = {
+    0,                            /* iVersion */
+    unionConnect,
+    unionConnect,
+    unionBestIndex,               /* xBestIndex - query planner */
+    unionDisconnect, 
+    unionDisconnect,
+    unionOpen,                    /* xOpen - open a cursor */
+    unionClose,                   /* xClose - close a cursor */
+    unionFilter,                  /* xFilter - configure scan constraints */
+    unionNext,                    /* xNext - advance a cursor */
+    unionEof,                     /* xEof - check for end of scan */
+    unionColumn,                  /* xColumn - read data */
+    unionRowid,                   /* xRowid - read data */
+    0,                            /* xUpdate */
+    0,                            /* xBegin */
+    0,                            /* xSync */
+    0,                            /* xCommit */
+    0,                            /* xRollback */
+    0,                            /* xFindMethod */
+    0,                            /* xRename */
+    0,                            /* xSavepoint */
+    0,                            /* xRelease */
+    0,                            /* xRollbackTo */
+    0,                            /* xShadowName */
+    0                             /* xIntegrity */
+  };
+  int rc;
+
+  rc = sqlite3_create_module(db, "unionvtab", &unionModule, 0);
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_module(db, "swarmvtab", &unionModule, (void*)db);
+  }
+  return rc;
+}
+
+#endif /* SQLITE_OMIT_VIRTUALTABLE */
+
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_unionvtab_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  int rc = SQLITE_OK;
+  SQLITE_EXTENSION_INIT2(pApi);
+  (void)pzErrMsg;  /* Suppress harmless warning */
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+  rc = createUnionVtab(db);
+#endif
+  return rc;
+}
diff --git a/ext/misc/urifuncs.c b/ext/misc/urifuncs.c
new file mode 100644
index 0000000000000000000000000000000000000000..9697b724cb7efcaf41101cdd0234172a413e28c0
--- /dev/null
+++ b/ext/misc/urifuncs.c
@@ -0,0 +1,209 @@
+/*
+** 2020-01-11
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This SQLite extension implements various SQL functions used to access
+** the following SQLite C-language APIs:
+**
+**         sqlite3_uri_parameter()
+**         sqlite3_uri_boolean()
+**         sqlite3_uri_int64()
+**         sqlite3_uri_key()
+**         sqlite3_filename_database()
+**         sqlite3_filename_journal()
+**         sqlite3_filename_wal()
+**         sqlite3_db_filename()
+**
+** These SQL functions are for testing and demonstration purposes only.
+**
+**
+*/
+#include "sqlite3ext.h"
+SQLITE_EXTENSION_INIT1
+#include <assert.h>
+#include <string.h>
+
+/*
+** SQL function:    sqlite3_db_filename(SCHEMA) 
+**
+** Return the filename corresponding to SCHEMA.
+*/
+static void func_db_filename(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  const char *zSchema = (const char*)sqlite3_value_text(argv[0]);
+  sqlite3 *db = sqlite3_context_db_handle(context);
+  const char *zFile = sqlite3_db_filename(db, zSchema);
+  sqlite3_result_text(context, zFile, -1, SQLITE_TRANSIENT);
+}
+
+/*
+** SQL function:    sqlite3_uri_parameter(SCHEMA,NAME) 
+**
+** Return the value of the NAME query parameter to the database for SCHEMA
+*/
+static void func_uri_parameter(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  const char *zSchema = (const char*)sqlite3_value_text(argv[0]);
+  sqlite3 *db = sqlite3_context_db_handle(context);
+  const char *zName = (const char*)sqlite3_value_text(argv[1]);
+  const char *zFile = sqlite3_db_filename(db, zSchema);
+  const char *zRes = sqlite3_uri_parameter(zFile, zName);
+  sqlite3_result_text(context, zRes, -1, SQLITE_TRANSIENT);
+}
+
+/*
+** SQL function:    sqlite3_uri_boolean(SCHEMA,NAME,DEFAULT) 
+**
+** Return the boolean value of the NAME query parameter to
+** the database for SCHEMA
+*/
+static void func_uri_boolean(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  const char *zSchema = (const char*)sqlite3_value_text(argv[0]);
+  sqlite3 *db = sqlite3_context_db_handle(context);
+  const char *zName = (const char*)sqlite3_value_text(argv[1]);
+  const char *zFile = sqlite3_db_filename(db, zSchema);
+  int iDflt = sqlite3_value_int(argv[2]);
+  int iRes = sqlite3_uri_boolean(zFile, zName, iDflt);
+  sqlite3_result_int(context, iRes);
+}
+
+/*
+** SQL function:    sqlite3_uri_key(SCHEMA,N)
+**
+** Return the name of the Nth query parameter
+*/
+static void func_uri_key(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  const char *zSchema = (const char*)sqlite3_value_text(argv[0]);
+  sqlite3 *db = sqlite3_context_db_handle(context);
+  int N = sqlite3_value_int(argv[1]);
+  const char *zFile = sqlite3_db_filename(db, zSchema);
+  const char *zRes = sqlite3_uri_key(zFile, N);
+  sqlite3_result_text(context, zRes, -1, SQLITE_TRANSIENT);
+}
+
+/*
+** SQL function:    sqlite3_uri_int64(SCHEMA,NAME,DEFAULT) 
+**
+** Return the int64 value of the NAME query parameter to
+** the database for SCHEMA
+*/
+static void func_uri_int64(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  const char *zSchema = (const char*)sqlite3_value_text(argv[0]);
+  sqlite3 *db = sqlite3_context_db_handle(context);
+  const char *zName = (const char*)sqlite3_value_text(argv[1]);
+  const char *zFile = sqlite3_db_filename(db, zSchema);
+  sqlite3_int64 iDflt = sqlite3_value_int64(argv[2]);
+  sqlite3_int64 iRes = sqlite3_uri_int64(zFile, zName, iDflt);
+  sqlite3_result_int64(context, iRes);
+}
+
+/*
+** SQL function:    sqlite3_filename_database(SCHEMA)
+**
+** Return the database filename for SCHEMA
+*/
+static void func_filename_database(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  const char *zSchema = (const char*)sqlite3_value_text(argv[0]);
+  sqlite3 *db = sqlite3_context_db_handle(context);
+  const char *zFile = sqlite3_db_filename(db, zSchema);
+  const char *zRes = zFile ? sqlite3_filename_database(zFile) : 0;
+  sqlite3_result_text(context, zRes, -1, SQLITE_TRANSIENT);
+}
+
+/*
+** SQL function:    sqlite3_filename_journal(SCHEMA)
+**
+** Return the rollback journal filename for SCHEMA
+*/
+static void func_filename_journal(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  const char *zSchema = (const char*)sqlite3_value_text(argv[0]);
+  sqlite3 *db = sqlite3_context_db_handle(context);
+  const char *zFile = sqlite3_db_filename(db, zSchema);
+  const char *zRes = zFile ? sqlite3_filename_journal(zFile) : 0;
+  sqlite3_result_text(context, zRes, -1, SQLITE_TRANSIENT);
+}
+
+/*
+** SQL function:    sqlite3_filename_wal(SCHEMA)
+**
+** Return the WAL filename for SCHEMA
+*/
+static void func_filename_wal(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  const char *zSchema = (const char*)sqlite3_value_text(argv[0]);
+  sqlite3 *db = sqlite3_context_db_handle(context);
+  const char *zFile = sqlite3_db_filename(db, zSchema);
+  const char *zRes = zFile ? sqlite3_filename_wal(zFile) : 0;
+  sqlite3_result_text(context, zRes, -1, SQLITE_TRANSIENT);
+}
+
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_urifuncs_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  static const struct {
+    const char *zFuncName;
+    int nArg;
+    void (*xFunc)(sqlite3_context*,int,sqlite3_value**);
+  } aFunc[] = {
+    { "sqlite3_db_filename",       1, func_db_filename       },
+    { "sqlite3_uri_parameter",     2, func_uri_parameter     },
+    { "sqlite3_uri_boolean",       3, func_uri_boolean       },
+    { "sqlite3_uri_int64",         3, func_uri_int64         },
+    { "sqlite3_uri_key",           2, func_uri_key           },
+    { "sqlite3_filename_database", 1, func_filename_database },
+    { "sqlite3_filename_journal",  1, func_filename_journal  },
+    { "sqlite3_filename_wal",      1, func_filename_wal      },
+  };
+  int rc = SQLITE_OK;
+  int i;
+  SQLITE_EXTENSION_INIT2(pApi);
+  (void)pzErrMsg;  /* Unused parameter */
+  for(i=0; rc==SQLITE_OK && i<sizeof(aFunc)/sizeof(aFunc[0]); i++){
+    rc = sqlite3_create_function(db, aFunc[i].zFuncName, aFunc[i].nArg,
+                     SQLITE_UTF8, 0,
+                     aFunc[i].xFunc, 0, 0);
+  }
+  return rc;
+}
diff --git a/ext/misc/uuid.c b/ext/misc/uuid.c
new file mode 100644
index 0000000000000000000000000000000000000000..5b5b8085ad962568483f2a61d66d108229c9d81c
--- /dev/null
+++ b/ext/misc/uuid.c
@@ -0,0 +1,233 @@
+/*
+** 2019-10-23
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This SQLite extension implements functions that handling RFC-4122 UUIDs
+** Three SQL functions are implemented:
+**
+**     uuid()        - generate a version 4 UUID as a string
+**     uuid_str(X)   - convert a UUID X into a well-formed UUID string
+**     uuid_blob(X)  - convert a UUID X into a 16-byte blob
+**
+** The output from uuid() and uuid_str(X) are always well-formed RFC-4122
+** UUID strings in this format:
+**
+**        xxxxxxxx-xxxx-Mxxx-Nxxx-xxxxxxxxxxxx
+**
+** All of the 'x', 'M', and 'N' values are lower-case hexadecimal digits.
+** The M digit indicates the "version".  For uuid()-generated UUIDs, the
+** version is always "4" (a random UUID).  The upper three bits of N digit
+** are the "variant".  This library only supports variant 1 (indicated
+** by values of N between '8' and 'b') as those are overwhelming the most
+** common.  Other variants are for legacy compatibility only.
+**
+** The output of uuid_blob(X) is always a 16-byte blob.  The UUID input
+** string is converted in network byte order (big-endian) in accordance
+** with RFC-4122 specifications for variant-1 UUIDs.  Note that network
+** byte order is *always* used, even if the input self-identifies as a
+** variant-2 UUID.
+**
+** The input X to the uuid_str() and uuid_blob() functions can be either
+** a string or a BLOB.  If it is a BLOB it must be exactly 16 bytes in
+** length or else a NULL is returned.  If the input is a string it must
+** consist of 32 hexadecimal digits, upper or lower case, optionally
+** surrounded by {...} and with optional "-" characters interposed in the
+** middle.  The flexibility of input is inspired by the PostgreSQL
+** implementation of UUID functions that accept in all of the following
+** formats:
+**
+**     A0EEBC99-9C0B-4EF8-BB6D-6BB9BD380A11
+**     {a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a11}
+**     a0eebc999c0b4ef8bb6d6bb9bd380a11
+**     a0ee-bc99-9c0b-4ef8-bb6d-6bb9-bd38-0a11
+**     {a0eebc99-9c0b4ef8-bb6d6bb9-bd380a11}
+**
+** If any of the above inputs are passed into uuid_str(), the output will
+** always be in the canonical RFC-4122 format:
+**
+**     a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a11
+**
+** If the X input string has too few or too many digits or contains
+** stray characters other than {, }, or -, then NULL is returned.
+*/
+#include "sqlite3ext.h"
+SQLITE_EXTENSION_INIT1
+#include <assert.h>
+#include <string.h>
+#include <ctype.h>
+
+#if !defined(SQLITE_ASCII) && !defined(SQLITE_EBCDIC)
+# define SQLITE_ASCII 1
+#endif
+
+/*
+** Translate a single byte of Hex into an integer.
+** This routine only works if h really is a valid hexadecimal
+** character:  0..9a..fA..F
+*/
+static unsigned char sqlite3UuidHexToInt(int h){
+  assert( (h>='0' && h<='9') ||  (h>='a' && h<='f') ||  (h>='A' && h<='F') );
+#ifdef SQLITE_ASCII
+  h += 9*(1&(h>>6));
+#endif
+#ifdef SQLITE_EBCDIC
+  h += 9*(1&~(h>>4));
+#endif
+  return (unsigned char)(h & 0xf);
+}
+
+/*
+** Convert a 16-byte BLOB into a well-formed RFC-4122 UUID.  The output
+** buffer zStr should be at least 37 bytes in length.   The output will
+** be zero-terminated.
+*/
+static void sqlite3UuidBlobToStr(
+  const unsigned char *aBlob,  /* Input blob */
+  unsigned char *zStr          /* Write the answer here */
+){
+  static const char zDigits[] = "0123456789abcdef";
+  int i, k;
+  unsigned char x;
+  k = 0;
+  for(i=0, k=0x550; i<16; i++, k=k>>1){
+    if( k&1 ){
+      zStr[0] = '-';
+      zStr++;
+    }
+    x = aBlob[i];
+    zStr[0] = zDigits[x>>4];
+    zStr[1] = zDigits[x&0xf];
+    zStr += 2;
+  }
+  *zStr = 0;
+}
+
+/*
+** Attempt to parse a zero-terminated input string zStr into a binary
+** UUID.  Return 0 on success, or non-zero if the input string is not
+** parsable.
+*/
+static int sqlite3UuidStrToBlob(
+  const unsigned char *zStr,   /* Input string */
+  unsigned char *aBlob         /* Write results here */
+){
+  int i;
+  if( zStr[0]=='{' ) zStr++;
+  for(i=0; i<16; i++){
+    if( zStr[0]=='-' ) zStr++;
+    if( isxdigit(zStr[0]) && isxdigit(zStr[1]) ){
+      aBlob[i] = (sqlite3UuidHexToInt(zStr[0])<<4)
+                      + sqlite3UuidHexToInt(zStr[1]);
+      zStr += 2;
+    }else{
+      return 1;
+    }
+  }
+  if( zStr[0]=='}' ) zStr++;
+  return zStr[0]!=0;
+}
+
+/*
+** Render sqlite3_value pIn as a 16-byte UUID blob.  Return a pointer
+** to the blob, or NULL if the input is not well-formed.
+*/
+static const unsigned char *sqlite3UuidInputToBlob(
+  sqlite3_value *pIn,     /* Input text */
+  unsigned char *pBuf     /* output buffer */
+){
+  switch( sqlite3_value_type(pIn) ){
+    case SQLITE_TEXT: {
+      const unsigned char *z = sqlite3_value_text(pIn);
+      if( sqlite3UuidStrToBlob(z, pBuf) ) return 0;
+      return pBuf;
+    }
+    case SQLITE_BLOB: {
+      int n = sqlite3_value_bytes(pIn);
+      return n==16 ? sqlite3_value_blob(pIn) : 0;
+    }
+    default: {
+      return 0;
+    }
+  }
+}
+
+/* Implementation of uuid() */
+static void sqlite3UuidFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  unsigned char aBlob[16];
+  unsigned char zStr[37];
+  (void)argc;
+  (void)argv;
+  sqlite3_randomness(16, aBlob);
+  aBlob[6] = (aBlob[6]&0x0f) + 0x40;
+  aBlob[8] = (aBlob[8]&0x3f) + 0x80;
+  sqlite3UuidBlobToStr(aBlob, zStr);
+  sqlite3_result_text(context, (char*)zStr, 36, SQLITE_TRANSIENT);
+}
+
+/* Implementation of uuid_str() */
+static void sqlite3UuidStrFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  unsigned char aBlob[16];
+  unsigned char zStr[37];
+  const unsigned char *pBlob;
+  (void)argc;
+  pBlob = sqlite3UuidInputToBlob(argv[0], aBlob);
+  if( pBlob==0 ) return;
+  sqlite3UuidBlobToStr(pBlob, zStr);
+  sqlite3_result_text(context, (char*)zStr, 36, SQLITE_TRANSIENT);
+}
+
+/* Implementation of uuid_blob() */
+static void sqlite3UuidBlobFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  unsigned char aBlob[16];
+  const unsigned char *pBlob;
+  (void)argc;
+  pBlob = sqlite3UuidInputToBlob(argv[0], aBlob);
+  if( pBlob==0 ) return;
+  sqlite3_result_blob(context, pBlob, 16, SQLITE_TRANSIENT);
+}
+
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_uuid_init(
+  sqlite3 *db,
+  char **pzErrMsg,
+  const sqlite3_api_routines *pApi
+){
+  int rc = SQLITE_OK;
+  SQLITE_EXTENSION_INIT2(pApi);
+  (void)pzErrMsg;  /* Unused parameter */
+  rc = sqlite3_create_function(db, "uuid", 0, SQLITE_UTF8|SQLITE_INNOCUOUS, 0,
+                               sqlite3UuidFunc, 0, 0);
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_function(db, "uuid_str", 1, 
+                       SQLITE_UTF8|SQLITE_INNOCUOUS|SQLITE_DETERMINISTIC,
+                       0, sqlite3UuidStrFunc, 0, 0);
+  }
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_function(db, "uuid_blob", 1,
+                       SQLITE_UTF8|SQLITE_INNOCUOUS|SQLITE_DETERMINISTIC,
+                       0, sqlite3UuidBlobFunc, 0, 0);
+  }
+  return rc;
+}
diff --git a/ext/misc/vfslog.c b/ext/misc/vfslog.c
new file mode 100644
index 0000000000000000000000000000000000000000..cb5bc5513ab857bbd13b8a3d291c4285f39c569e
--- /dev/null
+++ b/ext/misc/vfslog.c
@@ -0,0 +1,760 @@
+/*
+** 2013-10-09
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This file contains the implementation of an SQLite vfs wrapper for
+** unix that generates per-database log files of all disk activity.
+*/
+
+/*
+** This module contains code for a wrapper VFS that causes a log of
+** most VFS calls to be written into a file on disk.
+**
+** Each database connection creates a separate log file in the same
+** directory as the original database and named after the original
+** database.  A unique suffix is added to avoid name collisions.  
+** Separate log files are used so that concurrent processes do not
+** try to write log operations to the same file at the same instant, 
+** resulting in overwritten or comingled log text.
+**
+** Each individual log file records operations by a single database
+** connection on both the original database and its associated rollback
+** journal.
+**
+** The log files are in the comma-separated-value (CSV) format.  The
+** log files can be imported into an SQLite database using the ".import"
+** command of the SQLite command-line shell for analysis.
+**
+** One technique for using this module is to append the text of this
+** module to the end of a standard "sqlite3.c" amalgamation file then
+** add the following compile-time options:
+**
+**     -DSQLITE_EXTRA_INIT=sqlite3_register_vfslog
+**     -DSQLITE_USE_FCNTL_TRACE
+**
+** The first compile-time option causes the sqlite3_register_vfslog()
+** function, defined below, to be invoked when SQLite is initialized.
+** That causes this custom VFS to become the default VFS for all
+** subsequent connections.  The SQLITE_USE_FCNTL_TRACE option causes
+** the SQLite core to issue extra sqlite3_file_control() operations
+** with SQLITE_FCNTL_TRACE to give some indication of what is going
+** on in the core.
+*/
+
+#include "sqlite3.h"
+#include <string.h>
+#include <assert.h>
+#include <stdio.h>
+#if SQLITE_OS_UNIX
+# include <unistd.h>
+#endif
+
+/*
+** Forward declaration of objects used by this utility
+*/
+typedef struct VLogLog VLogLog;
+typedef struct VLogVfs VLogVfs;
+typedef struct VLogFile VLogFile;
+
+/* There is a pair (an array of size 2) of the following objects for
+** each database file being logged.  The first contains the filename
+** and is used to log I/O with the main database.  The second has
+** a NULL filename and is used to log I/O for the journal.  Both
+** out pointers are the same.
+*/
+struct VLogLog {
+  VLogLog *pNext;                 /* Next in a list of all active logs */
+  VLogLog **ppPrev;               /* Pointer to this in the list */
+  int nRef;                       /* Number of references to this object */
+  int nFilename;                  /* Length of zFilename in bytes */
+  char *zFilename;                /* Name of database file.  NULL for journal */
+  FILE *out;                      /* Write information here */
+};
+
+struct VLogVfs {
+  sqlite3_vfs base;               /* VFS methods */
+  sqlite3_vfs *pVfs;              /* Parent VFS */
+};
+
+struct VLogFile {
+  sqlite3_file base;              /* IO methods */
+  sqlite3_file *pReal;            /* Underlying file handle */
+  VLogLog *pLog;                  /* The log file for this file */
+};
+
+#define REALVFS(p) (((VLogVfs*)(p))->pVfs)
+
+/*
+** Methods for VLogFile
+*/
+static int vlogClose(sqlite3_file*);
+static int vlogRead(sqlite3_file*, void*, int iAmt, sqlite3_int64 iOfst);
+static int vlogWrite(sqlite3_file*,const void*,int iAmt, sqlite3_int64 iOfst);
+static int vlogTruncate(sqlite3_file*, sqlite3_int64 size);
+static int vlogSync(sqlite3_file*, int flags);
+static int vlogFileSize(sqlite3_file*, sqlite3_int64 *pSize);
+static int vlogLock(sqlite3_file*, int);
+static int vlogUnlock(sqlite3_file*, int);
+static int vlogCheckReservedLock(sqlite3_file*, int *pResOut);
+static int vlogFileControl(sqlite3_file*, int op, void *pArg);
+static int vlogSectorSize(sqlite3_file*);
+static int vlogDeviceCharacteristics(sqlite3_file*);
+
+/*
+** Methods for VLogVfs
+*/
+static int vlogOpen(sqlite3_vfs*, const char *, sqlite3_file*, int , int *);
+static int vlogDelete(sqlite3_vfs*, const char *zName, int syncDir);
+static int vlogAccess(sqlite3_vfs*, const char *zName, int flags, int *);
+static int vlogFullPathname(sqlite3_vfs*, const char *zName, int, char *zOut);
+static void *vlogDlOpen(sqlite3_vfs*, const char *zFilename);
+static void vlogDlError(sqlite3_vfs*, int nByte, char *zErrMsg);
+static void (*vlogDlSym(sqlite3_vfs *pVfs, void *p, const char*zSym))(void);
+static void vlogDlClose(sqlite3_vfs*, void*);
+static int vlogRandomness(sqlite3_vfs*, int nByte, char *zOut);
+static int vlogSleep(sqlite3_vfs*, int microseconds);
+static int vlogCurrentTime(sqlite3_vfs*, double*);
+static int vlogGetLastError(sqlite3_vfs*, int, char *);
+static int vlogCurrentTimeInt64(sqlite3_vfs*, sqlite3_int64*);
+
+static VLogVfs vlog_vfs = {
+  {
+    1,                            /* iVersion */
+    0,                            /* szOsFile (set by register_vlog()) */
+    1024,                         /* mxPathname */
+    0,                            /* pNext */
+    "vfslog",                     /* zName */
+    0,                            /* pAppData */
+    vlogOpen,                     /* xOpen */
+    vlogDelete,                   /* xDelete */
+    vlogAccess,                   /* xAccess */
+    vlogFullPathname,             /* xFullPathname */
+    vlogDlOpen,                   /* xDlOpen */
+    vlogDlError,                  /* xDlError */
+    vlogDlSym,                    /* xDlSym */
+    vlogDlClose,                  /* xDlClose */
+    vlogRandomness,               /* xRandomness */
+    vlogSleep,                    /* xSleep */
+    vlogCurrentTime,              /* xCurrentTime */
+    vlogGetLastError,             /* xGetLastError */
+    vlogCurrentTimeInt64          /* xCurrentTimeInt64 */
+  },
+  0
+};
+
+static sqlite3_io_methods vlog_io_methods = {
+  1,                              /* iVersion */
+  vlogClose,                      /* xClose */
+  vlogRead,                       /* xRead */
+  vlogWrite,                      /* xWrite */
+  vlogTruncate,                   /* xTruncate */
+  vlogSync,                       /* xSync */
+  vlogFileSize,                   /* xFileSize */
+  vlogLock,                       /* xLock */
+  vlogUnlock,                     /* xUnlock */
+  vlogCheckReservedLock,          /* xCheckReservedLock */
+  vlogFileControl,                /* xFileControl */
+  vlogSectorSize,                 /* xSectorSize */
+  vlogDeviceCharacteristics,      /* xDeviceCharacteristics */
+  0,                              /* xShmMap */
+  0,                              /* xShmLock */
+  0,                              /* xShmBarrier */
+  0                               /* xShmUnmap */
+};
+
+#if SQLITE_OS_UNIX && !defined(NO_GETTOD)
+#include <sys/time.h>
+static sqlite3_uint64 vlog_time(){
+  struct timeval sTime;
+  gettimeofday(&sTime, 0);
+  return sTime.tv_usec + (sqlite3_uint64)sTime.tv_sec * 1000000;
+}
+#elif SQLITE_OS_WIN
+#include <windows.h>
+#include <time.h>
+static sqlite3_uint64 vlog_time(){
+  FILETIME ft;
+  sqlite3_uint64 u64time = 0;
+ 
+  GetSystemTimeAsFileTime(&ft);
+
+  u64time |= ft.dwHighDateTime;
+  u64time <<= 32;
+  u64time |= ft.dwLowDateTime;
+
+  /* ft is 100-nanosecond intervals, we want microseconds */
+  return u64time /(sqlite3_uint64)10;
+}
+#else
+static sqlite3_uint64 vlog_time(){
+  return 0;
+}
+#endif
+
+
+/*
+** Write a message to the log file
+*/
+static void vlogLogPrint(
+  VLogLog *pLog,                 /* The log file to write into */
+  sqlite3_int64 tStart,            /* Start time of system call */
+  sqlite3_int64 tElapse,           /* Elapse time of system call */
+  const char *zOp,                 /* Type of system call */
+  sqlite3_int64 iArg1,             /* First argument */
+  sqlite3_int64 iArg2,             /* Second argument */
+  const char *zArg3,               /* Third argument */
+  int iRes                         /* Result */
+){
+  char z1[40], z2[40], z3[2000];
+  if( pLog==0 ) return;
+  if( iArg1>=0 ){
+    sqlite3_snprintf(sizeof(z1), z1, "%lld", iArg1);
+  }else{
+    z1[0] = 0;
+  }
+  if( iArg2>=0 ){
+    sqlite3_snprintf(sizeof(z2), z2, "%lld", iArg2);
+  }else{
+    z2[0] = 0;
+  }
+  if( zArg3 ){
+    sqlite3_snprintf(sizeof(z3), z3, "\"%.*w\"", sizeof(z3)-4, zArg3);
+  }else{
+    z3[0] = 0;
+  }
+  fprintf(pLog->out,"%lld,%lld,%s,%d,%s,%s,%s,%d\n",
+      tStart, tElapse, zOp, pLog->zFilename==0, z1, z2, z3, iRes);
+}
+
+/*
+** List of all active log connections.  Protected by the master mutex.
+*/
+static VLogLog *allLogs = 0;
+
+/*
+** Close a VLogLog object
+*/
+static void vlogLogClose(VLogLog *p){
+  if( p ){
+    sqlite3_mutex *pMutex;
+    p->nRef--;
+    if( p->nRef>0 || p->zFilename==0 ) return;
+    pMutex = sqlite3_mutex_alloc(SQLITE_MUTEX_STATIC_MASTER);
+    sqlite3_mutex_enter(pMutex);
+    *p->ppPrev = p->pNext;
+    if( p->pNext ) p->pNext->ppPrev = p->ppPrev;
+    sqlite3_mutex_leave(pMutex);
+    fclose(p->out);
+    sqlite3_free(p);
+  }
+}
+
+/*
+** Open a VLogLog object on the given file
+*/
+static VLogLog *vlogLogOpen(const char *zFilename){
+  int nName = (int)strlen(zFilename);
+  int isJournal = 0;
+  sqlite3_mutex *pMutex;
+  VLogLog *pLog, *pTemp;
+  sqlite3_int64 tNow = 0;
+  if( nName>4 && strcmp(zFilename+nName-4,"-wal")==0 ){
+    return 0;  /* Do not log wal files */
+  }else
+  if( nName>8 && strcmp(zFilename+nName-8,"-journal")==0 ){
+    nName -= 8;
+    isJournal = 1;
+  }else if( nName>12 
+         && sqlite3_strglob("-mj??????9??", zFilename+nName-12)==0 ){
+    return 0;  /* Do not log master journal files */
+  }
+  pTemp = sqlite3_malloc64( sizeof(*pLog)*2 + nName + 60 );
+  if( pTemp==0 ) return 0;
+  pMutex = sqlite3_mutex_alloc(SQLITE_MUTEX_STATIC_MASTER);
+  sqlite3_mutex_enter(pMutex);
+  for(pLog=allLogs; pLog; pLog=pLog->pNext){
+    if( pLog->nFilename==nName && !memcmp(pLog->zFilename, zFilename, nName) ){
+      break;
+    }
+  }
+  if( pLog==0 ){
+    pLog = pTemp;
+    pTemp = 0;
+    memset(pLog, 0, sizeof(*pLog)*2);
+    pLog->zFilename = (char*)&pLog[2];
+    tNow = vlog_time();
+    sqlite3_snprintf(nName+60, pLog->zFilename, "%.*s-debuglog-%lld",
+                     nName, zFilename, tNow);
+    pLog->out = fopen(pLog->zFilename, "a");
+    if( pLog->out==0 ){
+      sqlite3_mutex_leave(pMutex);
+      sqlite3_free(pLog);
+      return 0;
+    }
+    pLog->nFilename = nName;
+    pLog[1].out = pLog[0].out;
+    pLog->ppPrev = &allLogs;
+    if( allLogs ) allLogs->ppPrev = &pLog->pNext;
+    pLog->pNext = allLogs;
+    allLogs = pLog;
+  }
+  sqlite3_mutex_leave(pMutex);
+  if( pTemp ){
+    sqlite3_free(pTemp);
+  }else{
+#if SQLITE_OS_UNIX
+    char zHost[200];
+    zHost[0] = 0;
+    gethostname(zHost, sizeof(zHost)-1);
+    zHost[sizeof(zHost)-1] = 0;
+    vlogLogPrint(pLog, tNow, 0, "IDENT", getpid(), -1, zHost, 0);
+#endif
+  }
+  if( pLog && isJournal ) pLog++;
+  pLog->nRef++;
+  return pLog;
+}
+
+
+/*
+** Close an vlog-file.
+*/
+static int vlogClose(sqlite3_file *pFile){
+  sqlite3_uint64 tStart, tElapse;
+  int rc = SQLITE_OK;
+  VLogFile *p = (VLogFile *)pFile;
+
+  tStart = vlog_time();
+  if( p->pReal->pMethods ){
+    rc = p->pReal->pMethods->xClose(p->pReal);
+  }
+  tElapse = vlog_time() - tStart;
+  vlogLogPrint(p->pLog, tStart, tElapse, "CLOSE", -1, -1, 0, rc);
+  vlogLogClose(p->pLog);
+  return rc;
+}
+
+/*
+** Compute signature for a block of content.
+**
+** For blocks of 16 or fewer bytes, the signature is just a hex dump of
+** the entire block.
+**
+** For blocks of more than 16 bytes, the signature is a hex dump of the
+** first 8 bytes followed by a 64-bit has of the entire block.
+*/
+static void vlogSignature(unsigned char *p, int n, char *zCksum){
+  unsigned int s0 = 0, s1 = 0;
+  unsigned int *pI;
+  int i;
+  if( n<=16 ){
+    for(i=0; i<n; i++) sqlite3_snprintf(3, zCksum+i*2, "%02x", p[i]);
+  }else{ 
+    pI = (unsigned int*)p;
+    for(i=0; i<n-7; i+=8){
+      s0 += pI[0] + s1;
+      s1 += pI[1] + s0;
+      pI += 2;
+    }
+    for(i=0; i<8; i++) sqlite3_snprintf(3, zCksum+i*2, "%02x", p[i]);
+    sqlite3_snprintf(18, zCksum+i*2, "-%08x%08x", s0, s1);
+  }
+}
+
+/*
+** Convert a big-endian 32-bit integer into a native integer
+*/
+static int bigToNative(const unsigned char *x){
+  return (x[0]<<24) + (x[1]<<16) + (x[2]<<8) + x[3];
+}
+
+/*
+** Read data from an vlog-file.
+*/
+static int vlogRead(
+  sqlite3_file *pFile, 
+  void *zBuf, 
+  int iAmt, 
+  sqlite_int64 iOfst
+){
+  int rc;
+  sqlite3_uint64 tStart, tElapse;
+  VLogFile *p = (VLogFile *)pFile;
+  char zSig[40];
+
+  tStart = vlog_time();
+  rc = p->pReal->pMethods->xRead(p->pReal, zBuf, iAmt, iOfst);
+  tElapse = vlog_time() - tStart;
+  if( rc==SQLITE_OK ){
+    vlogSignature(zBuf, iAmt, zSig);
+  }else{
+    zSig[0] = 0;
+  }
+  vlogLogPrint(p->pLog, tStart, tElapse, "READ", iAmt, iOfst, zSig, rc);
+  if( rc==SQLITE_OK
+   && p->pLog
+   && p->pLog->zFilename
+   && iOfst<=24
+   && iOfst+iAmt>=28
+  ){
+    unsigned char *x = ((unsigned char*)zBuf)+(24-iOfst);
+    unsigned iCtr, nFree = -1;
+    char *zFree = 0;
+    char zStr[12];
+    iCtr = bigToNative(x);
+    if( iOfst+iAmt>=40 ){
+      zFree = zStr;
+      sqlite3_snprintf(sizeof(zStr), zStr, "%d", bigToNative(x+8));
+      nFree = bigToNative(x+12);
+    }
+    vlogLogPrint(p->pLog, tStart, 0, "CHNGCTR-READ", iCtr, nFree, zFree, 0);
+  }
+  return rc;
+}
+
+/*
+** Write data to an vlog-file.
+*/
+static int vlogWrite(
+  sqlite3_file *pFile,
+  const void *z,
+  int iAmt,
+  sqlite_int64 iOfst
+){
+  int rc;
+  sqlite3_uint64 tStart, tElapse;
+  VLogFile *p = (VLogFile *)pFile;
+  char zSig[40];
+
+  tStart = vlog_time();
+  vlogSignature((unsigned char*)z, iAmt, zSig);
+  rc = p->pReal->pMethods->xWrite(p->pReal, z, iAmt, iOfst);
+  tElapse = vlog_time() - tStart;
+  vlogLogPrint(p->pLog, tStart, tElapse, "WRITE", iAmt, iOfst, zSig, rc);
+  if( rc==SQLITE_OK
+   && p->pLog
+   && p->pLog->zFilename
+   && iOfst<=24
+   && iOfst+iAmt>=28
+  ){
+    unsigned char *x = ((unsigned char*)z)+(24-iOfst);
+    unsigned iCtr, nFree = -1;
+    char *zFree = 0;
+    char zStr[12];
+    iCtr = bigToNative(x);
+    if( iOfst+iAmt>=40 ){
+      zFree = zStr;
+      sqlite3_snprintf(sizeof(zStr), zStr, "%d", bigToNative(x+8));
+      nFree = bigToNative(x+12);
+    }
+    vlogLogPrint(p->pLog, tStart, 0, "CHNGCTR-WRITE", iCtr, nFree, zFree, 0);
+  }
+  return rc;
+}
+
+/*
+** Truncate an vlog-file.
+*/
+static int vlogTruncate(sqlite3_file *pFile, sqlite_int64 size){
+  int rc;
+  sqlite3_uint64 tStart, tElapse;
+  VLogFile *p = (VLogFile *)pFile;
+  tStart = vlog_time();
+  rc = p->pReal->pMethods->xTruncate(p->pReal, size);
+  tElapse = vlog_time() - tStart;
+  vlogLogPrint(p->pLog, tStart, tElapse, "TRUNCATE", size, -1, 0, rc);
+  return rc;
+}
+
+/*
+** Sync an vlog-file.
+*/
+static int vlogSync(sqlite3_file *pFile, int flags){
+  int rc;
+  sqlite3_uint64 tStart, tElapse;
+  VLogFile *p = (VLogFile *)pFile;
+  tStart = vlog_time();
+  rc = p->pReal->pMethods->xSync(p->pReal, flags);
+  tElapse = vlog_time() - tStart;
+  vlogLogPrint(p->pLog, tStart, tElapse, "SYNC", flags, -1, 0, rc);
+  return rc;
+}
+
+/*
+** Return the current file-size of an vlog-file.
+*/
+static int vlogFileSize(sqlite3_file *pFile, sqlite_int64 *pSize){
+  int rc;
+  sqlite3_uint64 tStart, tElapse;
+  VLogFile *p = (VLogFile *)pFile;
+  tStart = vlog_time();
+  rc = p->pReal->pMethods->xFileSize(p->pReal, pSize);
+  tElapse = vlog_time() - tStart;
+  vlogLogPrint(p->pLog, tStart, tElapse, "FILESIZE", *pSize, -1, 0, rc);
+  return rc;
+}
+
+/*
+** Lock an vlog-file.
+*/
+static int vlogLock(sqlite3_file *pFile, int eLock){
+  int rc;
+  sqlite3_uint64 tStart, tElapse;
+  VLogFile *p = (VLogFile *)pFile;
+  tStart = vlog_time();
+  rc = p->pReal->pMethods->xLock(p->pReal, eLock);
+  tElapse = vlog_time() - tStart;
+  vlogLogPrint(p->pLog, tStart, tElapse, "LOCK", eLock, -1, 0, rc);
+  return rc;
+}
+
+/*
+** Unlock an vlog-file.
+*/
+static int vlogUnlock(sqlite3_file *pFile, int eLock){
+  int rc;
+  sqlite3_uint64 tStart;
+  VLogFile *p = (VLogFile *)pFile;
+  tStart = vlog_time();
+  vlogLogPrint(p->pLog, tStart, 0, "UNLOCK", eLock, -1, 0, 0);
+  rc = p->pReal->pMethods->xUnlock(p->pReal, eLock);
+  return rc;
+}
+
+/*
+** Check if another file-handle holds a RESERVED lock on an vlog-file.
+*/
+static int vlogCheckReservedLock(sqlite3_file *pFile, int *pResOut){
+  int rc;
+  sqlite3_uint64 tStart, tElapse;
+  VLogFile *p = (VLogFile *)pFile;
+  tStart = vlog_time();
+  rc = p->pReal->pMethods->xCheckReservedLock(p->pReal, pResOut);
+  tElapse = vlog_time() - tStart;
+  vlogLogPrint(p->pLog, tStart, tElapse, "CHECKRESERVEDLOCK",
+                 *pResOut, -1, "", rc);
+  return rc;
+}
+
+/*
+** File control method. For custom operations on an vlog-file.
+*/
+static int vlogFileControl(sqlite3_file *pFile, int op, void *pArg){
+  VLogFile *p = (VLogFile *)pFile;
+  sqlite3_uint64 tStart, tElapse;
+  int rc;
+  tStart = vlog_time();
+  rc = p->pReal->pMethods->xFileControl(p->pReal, op, pArg);
+  if( op==SQLITE_FCNTL_VFSNAME && rc==SQLITE_OK ){
+    *(char**)pArg = sqlite3_mprintf("vlog/%z", *(char**)pArg);
+  }
+  tElapse = vlog_time() - tStart;
+  if( op==SQLITE_FCNTL_TRACE ){
+    vlogLogPrint(p->pLog, tStart, tElapse, "TRACE", op, -1, pArg, rc);
+  }else if( op==SQLITE_FCNTL_PRAGMA ){
+    const char **azArg = (const char **)pArg;
+    vlogLogPrint(p->pLog, tStart, tElapse, "FILECONTROL", op, -1, azArg[1], rc);
+  }else if( op==SQLITE_FCNTL_SIZE_HINT ){
+    sqlite3_int64 sz = *(sqlite3_int64*)pArg;
+    vlogLogPrint(p->pLog, tStart, tElapse, "FILECONTROL", op, sz, 0, rc);
+  }else{
+    vlogLogPrint(p->pLog, tStart, tElapse, "FILECONTROL", op, -1, 0, rc);
+  }
+  return rc;
+}
+
+/*
+** Return the sector-size in bytes for an vlog-file.
+*/
+static int vlogSectorSize(sqlite3_file *pFile){
+  int rc;
+  sqlite3_uint64 tStart, tElapse;
+  VLogFile *p = (VLogFile *)pFile;
+  tStart = vlog_time();
+  rc = p->pReal->pMethods->xSectorSize(p->pReal);
+  tElapse = vlog_time() - tStart;
+  vlogLogPrint(p->pLog, tStart, tElapse, "SECTORSIZE", -1, -1, 0, rc);
+  return rc;
+}
+
+/*
+** Return the device characteristic flags supported by an vlog-file.
+*/
+static int vlogDeviceCharacteristics(sqlite3_file *pFile){
+  int rc;
+  sqlite3_uint64 tStart, tElapse;
+  VLogFile *p = (VLogFile *)pFile;
+  tStart = vlog_time();
+  rc = p->pReal->pMethods->xDeviceCharacteristics(p->pReal);
+  tElapse = vlog_time() - tStart;
+  vlogLogPrint(p->pLog, tStart, tElapse, "DEVCHAR", -1, -1, 0, rc);
+  return rc;
+}
+
+
+/*
+** Open an vlog file handle.
+*/
+static int vlogOpen(
+  sqlite3_vfs *pVfs,
+  const char *zName,
+  sqlite3_file *pFile,
+  int flags,
+  int *pOutFlags
+){
+  int rc;
+  sqlite3_uint64 tStart, tElapse;
+  sqlite3_int64 iArg2;
+  VLogFile *p = (VLogFile*)pFile;
+
+  p->pReal = (sqlite3_file*)&p[1];
+  if( (flags & (SQLITE_OPEN_MAIN_DB|SQLITE_OPEN_MAIN_JOURNAL))!=0 ){
+    p->pLog = vlogLogOpen(zName);
+  }else{
+    p->pLog = 0;
+  }
+  tStart = vlog_time();
+  rc = REALVFS(pVfs)->xOpen(REALVFS(pVfs), zName, p->pReal, flags, pOutFlags);
+  tElapse = vlog_time() - tStart;
+  iArg2 = pOutFlags ? *pOutFlags : -1;
+  vlogLogPrint(p->pLog, tStart, tElapse, "OPEN", flags, iArg2, 0, rc);
+  if( rc==SQLITE_OK ){
+    pFile->pMethods = &vlog_io_methods;
+  }else{
+    if( p->pLog ) vlogLogClose(p->pLog);
+    p->pLog = 0;
+  }
+  return rc;
+}
+
+/*
+** Delete the file located at zPath. If the dirSync argument is true,
+** ensure the file-system modifications are synced to disk before
+** returning.
+*/
+static int vlogDelete(sqlite3_vfs *pVfs, const char *zPath, int dirSync){
+  int rc;
+  sqlite3_uint64 tStart, tElapse;
+  VLogLog *pLog;
+  tStart = vlog_time();
+  rc = REALVFS(pVfs)->xDelete(REALVFS(pVfs), zPath, dirSync);
+  tElapse = vlog_time() - tStart;
+  pLog = vlogLogOpen(zPath);
+  vlogLogPrint(pLog, tStart, tElapse, "DELETE", dirSync, -1, 0, rc);
+  vlogLogClose(pLog);
+  return rc;
+}
+
+/*
+** Test for access permissions. Return true if the requested permission
+** is available, or false otherwise.
+*/
+static int vlogAccess(
+  sqlite3_vfs *pVfs, 
+  const char *zPath, 
+  int flags, 
+  int *pResOut
+){
+  int rc;
+  sqlite3_uint64 tStart, tElapse;
+  VLogLog *pLog;
+  tStart = vlog_time();
+  rc = REALVFS(pVfs)->xAccess(REALVFS(pVfs), zPath, flags, pResOut);
+  tElapse = vlog_time() - tStart;
+  pLog = vlogLogOpen(zPath);
+  vlogLogPrint(pLog, tStart, tElapse, "ACCESS", flags, *pResOut, 0, rc);
+  vlogLogClose(pLog);
+  return rc;
+}
+
+/*
+** Populate buffer zOut with the full canonical pathname corresponding
+** to the pathname in zPath. zOut is guaranteed to point to a buffer
+** of at least (INST_MAX_PATHNAME+1) bytes.
+*/
+static int vlogFullPathname(
+  sqlite3_vfs *pVfs, 
+  const char *zPath, 
+  int nOut, 
+  char *zOut
+){
+  return REALVFS(pVfs)->xFullPathname(REALVFS(pVfs), zPath, nOut, zOut);
+}
+
+/*
+** Open the dynamic library located at zPath and return a handle.
+*/
+static void *vlogDlOpen(sqlite3_vfs *pVfs, const char *zPath){
+  return REALVFS(pVfs)->xDlOpen(REALVFS(pVfs), zPath);
+}
+
+/*
+** Populate the buffer zErrMsg (size nByte bytes) with a human readable
+** utf-8 string describing the most recent error encountered associated 
+** with dynamic libraries.
+*/
+static void vlogDlError(sqlite3_vfs *pVfs, int nByte, char *zErrMsg){
+  REALVFS(pVfs)->xDlError(REALVFS(pVfs), nByte, zErrMsg);
+}
+
+/*
+** Return a pointer to the symbol zSymbol in the dynamic library pHandle.
+*/
+static void (*vlogDlSym(sqlite3_vfs *pVfs, void *p, const char *zSym))(void){
+  return REALVFS(pVfs)->xDlSym(REALVFS(pVfs), p, zSym);
+}
+
+/*
+** Close the dynamic library handle pHandle.
+*/
+static void vlogDlClose(sqlite3_vfs *pVfs, void *pHandle){
+  REALVFS(pVfs)->xDlClose(REALVFS(pVfs), pHandle);
+}
+
+/*
+** Populate the buffer pointed to by zBufOut with nByte bytes of 
+** random data.
+*/
+static int vlogRandomness(sqlite3_vfs *pVfs, int nByte, char *zBufOut){
+  return REALVFS(pVfs)->xRandomness(REALVFS(pVfs), nByte, zBufOut);
+}
+
+/*
+** Sleep for nMicro microseconds. Return the number of microseconds 
+** actually slept.
+*/
+static int vlogSleep(sqlite3_vfs *pVfs, int nMicro){
+  return REALVFS(pVfs)->xSleep(REALVFS(pVfs), nMicro);
+}
+
+/*
+** Return the current time as a Julian Day number in *pTimeOut.
+*/
+static int vlogCurrentTime(sqlite3_vfs *pVfs, double *pTimeOut){
+  return REALVFS(pVfs)->xCurrentTime(REALVFS(pVfs), pTimeOut);
+}
+
+static int vlogGetLastError(sqlite3_vfs *pVfs, int a, char *b){
+  return REALVFS(pVfs)->xGetLastError(REALVFS(pVfs), a, b);
+}
+static int vlogCurrentTimeInt64(sqlite3_vfs *pVfs, sqlite3_int64 *p){
+  return REALVFS(pVfs)->xCurrentTimeInt64(REALVFS(pVfs), p);
+}
+
+/*
+** Register debugvfs as the default VFS for this process.
+*/
+int sqlite3_register_vfslog(const char *zArg){
+  vlog_vfs.pVfs = sqlite3_vfs_find(0);
+  if( vlog_vfs.pVfs==0 ) return SQLITE_ERROR;
+  vlog_vfs.base.szOsFile = sizeof(VLogFile) + vlog_vfs.pVfs->szOsFile;
+  return sqlite3_vfs_register(&vlog_vfs.base, 1);
+}
diff --git a/ext/misc/vfsstat.c b/ext/misc/vfsstat.c
new file mode 100644
index 0000000000000000000000000000000000000000..ba22115ab863d6729d998a25700ce8be86f3917d
--- /dev/null
+++ b/ext/misc/vfsstat.c
@@ -0,0 +1,825 @@
+/*
+** 2016-05-27
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This file contains the implementation of an SQLite vfs shim that
+** tracks I/O.  Access to the accumulated status counts is provided using
+** an eponymous virtual table.
+*/
+#include <sqlite3ext.h>
+SQLITE_EXTENSION_INIT1
+
+/*
+** This module contains code for a wrapper VFS that cause stats for
+** most VFS calls to be recorded.
+**
+** To use this module, first compile it as a loadable extension.  See
+** https://www.sqlite.org/loadext.html#build for compilations instructions.
+**
+** After compliing, load this extension, then open database connections to be
+** measured.  Query usages status using the vfsstat virtual table:
+**
+**         SELECT * FROM vfsstat;
+**
+** Reset counters using UPDATE statements against vfsstat:
+**
+**         UPDATE vfsstat SET count=0;
+**
+** EXAMPLE SCRIPT:
+**
+**      .load ./vfsstat
+**      .open test.db
+**      DROP TABLE IF EXISTS t1;
+**      CREATE TABLE t1(x,y);
+**      INSERT INTO t1 VALUES(123, randomblob(5000));
+**      CREATE INDEX t1x ON t1(x);
+**      DROP TABLE t1;
+**      VACUUM;
+**      SELECT * FROM vfsstat WHERE count>0;
+**
+** LIMITATIONS:
+** 
+** This module increments counters without using mutex protection.  So if
+** two or more threads try to use this module at the same time, race conditions
+** may occur which mess up the counts.  This is harmless, other than giving
+** incorrect statistics.
+*/
+#include <string.h>
+#include <stdlib.h>
+#include <assert.h>
+
+/*
+** File types
+*/
+#define VFSSTAT_MAIN         0   /* Main database file */
+#define VFSSTAT_JOURNAL      1   /* Rollback journal */
+#define VFSSTAT_WAL          2   /* Write-ahead log file */
+#define VFSSTAT_MASTERJRNL   3   /* Master journal */
+#define VFSSTAT_SUBJRNL      4   /* Subjournal */
+#define VFSSTAT_TEMPDB       5   /* TEMP database */
+#define VFSSTAT_TEMPJRNL     6   /* Journal for TEMP database */
+#define VFSSTAT_TRANSIENT    7   /* Transient database */
+#define VFSSTAT_ANY          8   /* Unspecified file type */
+#define VFSSTAT_nFile        9   /* This many file types */
+
+/* Names of the file types.  These are allowed values for the
+** first column of the vfsstat virtual table.
+*/
+static const char *azFile[] = {
+  "database", "journal", "wal", "master-journal", "sub-journal",
+  "temp-database", "temp-journal", "transient-db", "*"
+};
+
+/*
+** Stat types
+*/
+#define VFSSTAT_BYTESIN      0   /* Bytes read in */
+#define VFSSTAT_BYTESOUT     1   /* Bytes written out */   
+#define VFSSTAT_READ         2   /* Read requests */
+#define VFSSTAT_WRITE        3   /* Write requests */
+#define VFSSTAT_SYNC         4   /* Syncs */
+#define VFSSTAT_OPEN         5   /* File opens */
+#define VFSSTAT_LOCK         6   /* Lock requests */
+#define VFSSTAT_ACCESS       0   /* xAccess calls.  filetype==ANY only */
+#define VFSSTAT_DELETE       1   /* xDelete calls.  filetype==ANY only */
+#define VFSSTAT_FULLPATH     2   /* xFullPathname calls.  ANY only */
+#define VFSSTAT_RANDOM       3   /* xRandomness calls.    ANY only */
+#define VFSSTAT_SLEEP        4   /* xSleep calls.         ANY only */
+#define VFSSTAT_CURTIME      5   /* xCurrentTime calls.   ANY only */
+#define VFSSTAT_nStat        7   /* This many stat types */
+
+
+/* Names for the second column of the vfsstat virtual table for all
+** cases except when the first column is "*" or VFSSTAT_ANY. */
+static const char *azStat[] = {
+  "bytes-in", "bytes-out", "read", "write", "sync", "open", "lock",
+};
+static const char *azStatAny[] = {
+  "access", "delete", "fullpathname", "randomness", "sleep", "currenttimestamp",
+  "not-used"
+};
+
+/* Total number of counters */
+#define VFSSTAT_MXCNT  (VFSSTAT_nStat*VFSSTAT_nFile)
+
+/*
+** Performance stats are collected in an instance of the following
+** global array.
+*/
+static sqlite3_uint64 aVfsCnt[VFSSTAT_MXCNT];
+
+/*
+** Access to a specific counter
+*/
+#define STATCNT(filetype,stat) (aVfsCnt[(filetype)*VFSSTAT_nStat+(stat)])
+
+/*
+** Forward declaration of objects used by this utility
+*/
+typedef struct VStatVfs VStatVfs;
+typedef struct VStatFile VStatFile;
+
+/* An instance of the VFS */
+struct VStatVfs {
+  sqlite3_vfs base;               /* VFS methods */
+  sqlite3_vfs *pVfs;              /* Parent VFS */
+};
+
+/* An open file */
+struct VStatFile {
+  sqlite3_file base;              /* IO methods */
+  sqlite3_file *pReal;            /* Underlying file handle */
+  unsigned char eFiletype;        /* What type of file is this */
+};
+
+#define REALVFS(p) (((VStatVfs*)(p))->pVfs)
+
+/*
+** Methods for VStatFile
+*/
+static int vstatClose(sqlite3_file*);
+static int vstatRead(sqlite3_file*, void*, int iAmt, sqlite3_int64 iOfst);
+static int vstatWrite(sqlite3_file*,const void*,int iAmt, sqlite3_int64 iOfst);
+static int vstatTruncate(sqlite3_file*, sqlite3_int64 size);
+static int vstatSync(sqlite3_file*, int flags);
+static int vstatFileSize(sqlite3_file*, sqlite3_int64 *pSize);
+static int vstatLock(sqlite3_file*, int);
+static int vstatUnlock(sqlite3_file*, int);
+static int vstatCheckReservedLock(sqlite3_file*, int *pResOut);
+static int vstatFileControl(sqlite3_file*, int op, void *pArg);
+static int vstatSectorSize(sqlite3_file*);
+static int vstatDeviceCharacteristics(sqlite3_file*);
+static int vstatShmMap(sqlite3_file*, int iPg, int pgsz, int, void volatile**);
+static int vstatShmLock(sqlite3_file*, int offset, int n, int flags);
+static void vstatShmBarrier(sqlite3_file*);
+static int vstatShmUnmap(sqlite3_file*, int deleteFlag);
+static int vstatFetch(sqlite3_file*, sqlite3_int64 iOfst, int iAmt, void **pp);
+static int vstatUnfetch(sqlite3_file*, sqlite3_int64 iOfst, void *p);
+
+/*
+** Methods for VStatVfs
+*/
+static int vstatOpen(sqlite3_vfs*, const char *, sqlite3_file*, int , int *);
+static int vstatDelete(sqlite3_vfs*, const char *zName, int syncDir);
+static int vstatAccess(sqlite3_vfs*, const char *zName, int flags, int *);
+static int vstatFullPathname(sqlite3_vfs*, const char *zName, int, char *zOut);
+static void *vstatDlOpen(sqlite3_vfs*, const char *zFilename);
+static void vstatDlError(sqlite3_vfs*, int nByte, char *zErrMsg);
+static void (*vstatDlSym(sqlite3_vfs *pVfs, void *p, const char*zSym))(void);
+static void vstatDlClose(sqlite3_vfs*, void*);
+static int vstatRandomness(sqlite3_vfs*, int nByte, char *zOut);
+static int vstatSleep(sqlite3_vfs*, int microseconds);
+static int vstatCurrentTime(sqlite3_vfs*, double*);
+static int vstatGetLastError(sqlite3_vfs*, int, char *);
+static int vstatCurrentTimeInt64(sqlite3_vfs*, sqlite3_int64*);
+
+static VStatVfs vstat_vfs = {
+  {
+    2,                            /* iVersion */
+    0,                            /* szOsFile (set by register_vstat()) */
+    1024,                         /* mxPathname */
+    0,                            /* pNext */
+    "vfslog",                     /* zName */
+    0,                            /* pAppData */
+    vstatOpen,                     /* xOpen */
+    vstatDelete,                   /* xDelete */
+    vstatAccess,                   /* xAccess */
+    vstatFullPathname,             /* xFullPathname */
+    vstatDlOpen,                   /* xDlOpen */
+    vstatDlError,                  /* xDlError */
+    vstatDlSym,                    /* xDlSym */
+    vstatDlClose,                  /* xDlClose */
+    vstatRandomness,               /* xRandomness */
+    vstatSleep,                    /* xSleep */
+    vstatCurrentTime,              /* xCurrentTime */
+    vstatGetLastError,             /* xGetLastError */
+    vstatCurrentTimeInt64          /* xCurrentTimeInt64 */
+  },
+  0
+};
+
+static const sqlite3_io_methods vstat_io_methods = {
+  3,                              /* iVersion */
+  vstatClose,                      /* xClose */
+  vstatRead,                       /* xRead */
+  vstatWrite,                      /* xWrite */
+  vstatTruncate,                   /* xTruncate */
+  vstatSync,                       /* xSync */
+  vstatFileSize,                   /* xFileSize */
+  vstatLock,                       /* xLock */
+  vstatUnlock,                     /* xUnlock */
+  vstatCheckReservedLock,          /* xCheckReservedLock */
+  vstatFileControl,                /* xFileControl */
+  vstatSectorSize,                 /* xSectorSize */
+  vstatDeviceCharacteristics,      /* xDeviceCharacteristics */
+  vstatShmMap,                     /* xShmMap */
+  vstatShmLock,                    /* xShmLock */
+  vstatShmBarrier,                 /* xShmBarrier */
+  vstatShmUnmap,                   /* xShmUnmap */
+  vstatFetch,                      /* xFetch */
+  vstatUnfetch                     /* xUnfetch */
+};
+
+
+
+/*
+** Close an vstat-file.
+*/
+static int vstatClose(sqlite3_file *pFile){
+  VStatFile *p = (VStatFile *)pFile;
+  int rc = SQLITE_OK;
+
+  if( p->pReal->pMethods ){
+    rc = p->pReal->pMethods->xClose(p->pReal);
+  }
+  return rc;
+}
+
+
+/*
+** Read data from an vstat-file.
+*/
+static int vstatRead(
+  sqlite3_file *pFile, 
+  void *zBuf, 
+  int iAmt, 
+  sqlite_int64 iOfst
+){
+  int rc;
+  VStatFile *p = (VStatFile *)pFile;
+
+  rc = p->pReal->pMethods->xRead(p->pReal, zBuf, iAmt, iOfst);
+  STATCNT(p->eFiletype,VFSSTAT_READ)++;
+  if( rc==SQLITE_OK ){
+    STATCNT(p->eFiletype,VFSSTAT_BYTESIN) += iAmt;
+  }
+  return rc;
+}
+
+/*
+** Write data to an vstat-file.
+*/
+static int vstatWrite(
+  sqlite3_file *pFile,
+  const void *z,
+  int iAmt,
+  sqlite_int64 iOfst
+){
+  int rc;
+  VStatFile *p = (VStatFile *)pFile;
+
+  rc = p->pReal->pMethods->xWrite(p->pReal, z, iAmt, iOfst);
+  STATCNT(p->eFiletype,VFSSTAT_WRITE)++;
+  if( rc==SQLITE_OK ){
+    STATCNT(p->eFiletype,VFSSTAT_BYTESOUT) += iAmt;
+  }
+  return rc;
+}
+
+/*
+** Truncate an vstat-file.
+*/
+static int vstatTruncate(sqlite3_file *pFile, sqlite_int64 size){
+  int rc;
+  VStatFile *p = (VStatFile *)pFile;
+  rc = p->pReal->pMethods->xTruncate(p->pReal, size);
+  return rc;
+}
+
+/*
+** Sync an vstat-file.
+*/
+static int vstatSync(sqlite3_file *pFile, int flags){
+  int rc;
+  VStatFile *p = (VStatFile *)pFile;
+  rc = p->pReal->pMethods->xSync(p->pReal, flags);
+  STATCNT(p->eFiletype,VFSSTAT_SYNC)++;
+  return rc;
+}
+
+/*
+** Return the current file-size of an vstat-file.
+*/
+static int vstatFileSize(sqlite3_file *pFile, sqlite_int64 *pSize){
+  int rc;
+  VStatFile *p = (VStatFile *)pFile;
+  rc = p->pReal->pMethods->xFileSize(p->pReal, pSize);
+  return rc;
+}
+
+/*
+** Lock an vstat-file.
+*/
+static int vstatLock(sqlite3_file *pFile, int eLock){
+  int rc;
+  VStatFile *p = (VStatFile *)pFile;
+  rc = p->pReal->pMethods->xLock(p->pReal, eLock);
+  STATCNT(p->eFiletype,VFSSTAT_LOCK)++;
+  return rc;
+}
+
+/*
+** Unlock an vstat-file.
+*/
+static int vstatUnlock(sqlite3_file *pFile, int eLock){
+  int rc;
+  VStatFile *p = (VStatFile *)pFile;
+  rc = p->pReal->pMethods->xUnlock(p->pReal, eLock);
+  STATCNT(p->eFiletype,VFSSTAT_LOCK)++;
+  return rc;
+}
+
+/*
+** Check if another file-handle holds a RESERVED lock on an vstat-file.
+*/
+static int vstatCheckReservedLock(sqlite3_file *pFile, int *pResOut){
+  int rc;
+  VStatFile *p = (VStatFile *)pFile;
+  rc = p->pReal->pMethods->xCheckReservedLock(p->pReal, pResOut);
+  STATCNT(p->eFiletype,VFSSTAT_LOCK)++;
+  return rc;
+}
+
+/*
+** File control method. For custom operations on an vstat-file.
+*/
+static int vstatFileControl(sqlite3_file *pFile, int op, void *pArg){
+  VStatFile *p = (VStatFile *)pFile;
+  int rc;
+  rc = p->pReal->pMethods->xFileControl(p->pReal, op, pArg);
+  if( op==SQLITE_FCNTL_VFSNAME && rc==SQLITE_OK ){
+    *(char**)pArg = sqlite3_mprintf("vstat/%z", *(char**)pArg);
+  }
+  return rc;
+}
+
+/*
+** Return the sector-size in bytes for an vstat-file.
+*/
+static int vstatSectorSize(sqlite3_file *pFile){
+  int rc;
+  VStatFile *p = (VStatFile *)pFile;
+  rc = p->pReal->pMethods->xSectorSize(p->pReal);
+  return rc;
+}
+
+/*
+** Return the device characteristic flags supported by an vstat-file.
+*/
+static int vstatDeviceCharacteristics(sqlite3_file *pFile){
+  int rc;
+  VStatFile *p = (VStatFile *)pFile;
+  rc = p->pReal->pMethods->xDeviceCharacteristics(p->pReal);
+  return rc;
+}
+
+/* Create a shared memory file mapping */
+static int vstatShmMap(
+  sqlite3_file *pFile,
+  int iPg,
+  int pgsz,
+  int bExtend,
+  void volatile **pp
+){
+  VStatFile *p = (VStatFile *)pFile;
+  return p->pReal->pMethods->xShmMap(p->pReal, iPg, pgsz, bExtend, pp);
+}
+
+/* Perform locking on a shared-memory segment */
+static int vstatShmLock(sqlite3_file *pFile, int offset, int n, int flags){
+  VStatFile *p = (VStatFile *)pFile;
+  return p->pReal->pMethods->xShmLock(p->pReal, offset, n, flags);
+}
+
+/* Memory barrier operation on shared memory */
+static void vstatShmBarrier(sqlite3_file *pFile){
+  VStatFile *p = (VStatFile *)pFile;
+  p->pReal->pMethods->xShmBarrier(p->pReal);
+}
+
+/* Unmap a shared memory segment */
+static int vstatShmUnmap(sqlite3_file *pFile, int deleteFlag){
+  VStatFile *p = (VStatFile *)pFile;
+  return p->pReal->pMethods->xShmUnmap(p->pReal, deleteFlag);
+}
+
+/* Fetch a page of a memory-mapped file */
+static int vstatFetch(
+  sqlite3_file *pFile,
+  sqlite3_int64 iOfst,
+  int iAmt,
+  void **pp
+){
+  VStatFile *p = (VStatFile *)pFile;
+  return p->pReal->pMethods->xFetch(p->pReal, iOfst, iAmt, pp);
+}
+
+/* Release a memory-mapped page */
+static int vstatUnfetch(sqlite3_file *pFile, sqlite3_int64 iOfst, void *pPage){
+  VStatFile *p = (VStatFile *)pFile;
+  return p->pReal->pMethods->xUnfetch(p->pReal, iOfst, pPage);
+}
+
+/*
+** Open an vstat file handle.
+*/
+static int vstatOpen(
+  sqlite3_vfs *pVfs,
+  const char *zName,
+  sqlite3_file *pFile,
+  int flags,
+  int *pOutFlags
+){
+  int rc;
+  VStatFile *p = (VStatFile*)pFile;
+
+  p->pReal = (sqlite3_file*)&p[1];
+  rc = REALVFS(pVfs)->xOpen(REALVFS(pVfs), zName, p->pReal, flags, pOutFlags);
+  if( flags & SQLITE_OPEN_MAIN_DB ){
+    p->eFiletype = VFSSTAT_MAIN;
+  }else if( flags & SQLITE_OPEN_MAIN_JOURNAL ){
+    p->eFiletype = VFSSTAT_JOURNAL;
+  }else if( flags & SQLITE_OPEN_WAL ){
+    p->eFiletype = VFSSTAT_WAL;
+  }else if( flags & SQLITE_OPEN_MASTER_JOURNAL ){
+    p->eFiletype = VFSSTAT_MASTERJRNL;
+  }else if( flags & SQLITE_OPEN_SUBJOURNAL ){
+    p->eFiletype = VFSSTAT_SUBJRNL;
+  }else if( flags & SQLITE_OPEN_TEMP_DB ){
+    p->eFiletype = VFSSTAT_TEMPDB;
+  }else if( flags & SQLITE_OPEN_TEMP_JOURNAL ){
+    p->eFiletype = VFSSTAT_TEMPJRNL;
+  }else{
+    p->eFiletype = VFSSTAT_TRANSIENT;
+  }
+  STATCNT(p->eFiletype,VFSSTAT_OPEN)++;
+  pFile->pMethods = rc ? 0 : &vstat_io_methods;
+  return rc;
+}
+
+/*
+** Delete the file located at zPath. If the dirSync argument is true,
+** ensure the file-system modifications are synced to disk before
+** returning.
+*/
+static int vstatDelete(sqlite3_vfs *pVfs, const char *zPath, int dirSync){
+  int rc;
+  rc = REALVFS(pVfs)->xDelete(REALVFS(pVfs), zPath, dirSync);
+  STATCNT(VFSSTAT_ANY,VFSSTAT_DELETE)++;
+  return rc;
+}
+
+/*
+** Test for access permissions. Return true if the requested permission
+** is available, or false otherwise.
+*/
+static int vstatAccess(
+  sqlite3_vfs *pVfs, 
+  const char *zPath, 
+  int flags, 
+  int *pResOut
+){
+  int rc;
+  rc = REALVFS(pVfs)->xAccess(REALVFS(pVfs), zPath, flags, pResOut);
+  STATCNT(VFSSTAT_ANY,VFSSTAT_ACCESS)++;
+  return rc;
+}
+
+/*
+** Populate buffer zOut with the full canonical pathname corresponding
+** to the pathname in zPath. zOut is guaranteed to point to a buffer
+** of at least (INST_MAX_PATHNAME+1) bytes.
+*/
+static int vstatFullPathname(
+  sqlite3_vfs *pVfs, 
+  const char *zPath, 
+  int nOut, 
+  char *zOut
+){
+  STATCNT(VFSSTAT_ANY,VFSSTAT_FULLPATH)++;
+  return REALVFS(pVfs)->xFullPathname(REALVFS(pVfs), zPath, nOut, zOut);
+}
+
+/*
+** Open the dynamic library located at zPath and return a handle.
+*/
+static void *vstatDlOpen(sqlite3_vfs *pVfs, const char *zPath){
+  return REALVFS(pVfs)->xDlOpen(REALVFS(pVfs), zPath);
+}
+
+/*
+** Populate the buffer zErrMsg (size nByte bytes) with a human readable
+** utf-8 string describing the most recent error encountered associated 
+** with dynamic libraries.
+*/
+static void vstatDlError(sqlite3_vfs *pVfs, int nByte, char *zErrMsg){
+  REALVFS(pVfs)->xDlError(REALVFS(pVfs), nByte, zErrMsg);
+}
+
+/*
+** Return a pointer to the symbol zSymbol in the dynamic library pHandle.
+*/
+static void (*vstatDlSym(sqlite3_vfs *pVfs, void *p, const char *zSym))(void){
+  return REALVFS(pVfs)->xDlSym(REALVFS(pVfs), p, zSym);
+}
+
+/*
+** Close the dynamic library handle pHandle.
+*/
+static void vstatDlClose(sqlite3_vfs *pVfs, void *pHandle){
+  REALVFS(pVfs)->xDlClose(REALVFS(pVfs), pHandle);
+}
+
+/*
+** Populate the buffer pointed to by zBufOut with nByte bytes of 
+** random data.
+*/
+static int vstatRandomness(sqlite3_vfs *pVfs, int nByte, char *zBufOut){
+  STATCNT(VFSSTAT_ANY,VFSSTAT_RANDOM)++;
+  return REALVFS(pVfs)->xRandomness(REALVFS(pVfs), nByte, zBufOut);
+}
+
+/*
+** Sleep for nMicro microseconds. Return the number of microseconds 
+** actually slept.
+*/
+static int vstatSleep(sqlite3_vfs *pVfs, int nMicro){
+  STATCNT(VFSSTAT_ANY,VFSSTAT_SLEEP)++;
+  return REALVFS(pVfs)->xSleep(REALVFS(pVfs), nMicro);
+}
+
+/*
+** Return the current time as a Julian Day number in *pTimeOut.
+*/
+static int vstatCurrentTime(sqlite3_vfs *pVfs, double *pTimeOut){
+  STATCNT(VFSSTAT_ANY,VFSSTAT_CURTIME)++;
+  return REALVFS(pVfs)->xCurrentTime(REALVFS(pVfs), pTimeOut);
+}
+
+static int vstatGetLastError(sqlite3_vfs *pVfs, int a, char *b){
+  return REALVFS(pVfs)->xGetLastError(REALVFS(pVfs), a, b);
+}
+static int vstatCurrentTimeInt64(sqlite3_vfs *pVfs, sqlite3_int64 *p){
+  STATCNT(VFSSTAT_ANY,VFSSTAT_CURTIME)++;
+  return REALVFS(pVfs)->xCurrentTimeInt64(REALVFS(pVfs), p);
+}
+
+/*
+** A virtual table for accessing the stats collected by this VFS shim
+*/
+static int vstattabConnect(sqlite3*, void*, int, const char*const*, 
+                           sqlite3_vtab**,char**);
+static int vstattabBestIndex(sqlite3_vtab*,sqlite3_index_info*);
+static int vstattabDisconnect(sqlite3_vtab*);
+static int vstattabOpen(sqlite3_vtab*, sqlite3_vtab_cursor**);
+static int vstattabClose(sqlite3_vtab_cursor*);
+static int vstattabFilter(sqlite3_vtab_cursor*, int idxNum, const char *idxStr,
+                          int argc, sqlite3_value **argv);
+static int vstattabNext(sqlite3_vtab_cursor*);
+static int vstattabEof(sqlite3_vtab_cursor*);
+static int vstattabColumn(sqlite3_vtab_cursor*,sqlite3_context*,int);
+static int vstattabRowid(sqlite3_vtab_cursor*,sqlite3_int64*);
+static int vstattabUpdate(sqlite3_vtab*,int,sqlite3_value**,sqlite3_int64*);
+
+/* A cursor for the vfsstat virtual table */
+typedef struct VfsStatCursor {
+  sqlite3_vtab_cursor base;       /* Base class.  Must be first */
+  int i;                          /* Pointing to this aVfsCnt[] value */
+} VfsStatCursor;
+
+
+static int vstattabConnect(
+  sqlite3 *db,
+  void *pAux,
+  int argc, const char *const*argv,
+  sqlite3_vtab **ppVtab,
+  char **pzErr
+){
+  sqlite3_vtab *pNew;
+  int rc;
+
+/* Column numbers */
+#define VSTAT_COLUMN_FILE  0 
+#define VSTAT_COLUMN_STAT  1
+#define VSTAT_COLUMN_COUNT 2
+
+  rc = sqlite3_declare_vtab(db,"CREATE TABLE x(file,stat,count)");
+  if( rc==SQLITE_OK ){
+    pNew = *ppVtab = sqlite3_malloc( sizeof(*pNew) );
+    if( pNew==0 ) return SQLITE_NOMEM;
+    memset(pNew, 0, sizeof(*pNew));
+  }
+  return rc;
+}
+
+/*
+** This method is the destructor for vstat table object.
+*/
+static int vstattabDisconnect(sqlite3_vtab *pVtab){
+  sqlite3_free(pVtab);
+  return SQLITE_OK;
+}
+
+/*
+** Constructor for a new vstat table cursor object.
+*/
+static int vstattabOpen(sqlite3_vtab *p, sqlite3_vtab_cursor **ppCursor){
+  VfsStatCursor *pCur;
+  pCur = sqlite3_malloc( sizeof(*pCur) );
+  if( pCur==0 ) return SQLITE_NOMEM;
+  memset(pCur, 0, sizeof(*pCur));
+  *ppCursor = &pCur->base;
+  return SQLITE_OK;
+}
+
+
+/*
+** Destructor for a VfsStatCursor.
+*/
+static int vstattabClose(sqlite3_vtab_cursor *cur){
+  sqlite3_free(cur);
+  return SQLITE_OK;
+}
+
+
+/*
+** Advance a VfsStatCursor to its next row of output.
+*/
+static int vstattabNext(sqlite3_vtab_cursor *cur){
+  ((VfsStatCursor*)cur)->i++;
+  return SQLITE_OK;
+}
+
+/*
+** Return values of columns for the row at which the VfsStatCursor
+** is currently pointing.
+*/
+static int vstattabColumn(
+  sqlite3_vtab_cursor *cur,   /* The cursor */
+  sqlite3_context *ctx,       /* First argument to sqlite3_result_...() */
+  int i                       /* Which column to return */
+){
+  VfsStatCursor *pCur = (VfsStatCursor*)cur;
+  switch( i ){
+    case VSTAT_COLUMN_FILE: {
+      sqlite3_result_text(ctx, azFile[pCur->i/VFSSTAT_nStat], -1, SQLITE_STATIC);
+      break;
+    }
+    case VSTAT_COLUMN_STAT: {
+      const char **az;
+      az = (pCur->i/VFSSTAT_nStat)==VFSSTAT_ANY ? azStatAny : azStat;
+      sqlite3_result_text(ctx, az[pCur->i%VFSSTAT_nStat], -1, SQLITE_STATIC);
+      break;
+    }
+    case VSTAT_COLUMN_COUNT: {
+      sqlite3_result_int64(ctx, aVfsCnt[pCur->i]);
+      break;
+    }
+  }
+  return SQLITE_OK;
+}
+
+/*
+** Return the rowid for the current row.
+*/
+static int vstattabRowid(sqlite3_vtab_cursor *cur, sqlite_int64 *pRowid){
+  VfsStatCursor *pCur = (VfsStatCursor*)cur;
+  *pRowid = pCur->i;
+  return SQLITE_OK;
+}
+
+/*
+** Return TRUE if the cursor has been moved off of the last
+** row of output.
+*/
+static int vstattabEof(sqlite3_vtab_cursor *cur){
+  VfsStatCursor *pCur = (VfsStatCursor*)cur;
+  return pCur->i >= VFSSTAT_MXCNT;
+}
+
+/*
+** Only a full table scan is supported.  So xFilter simply rewinds to
+** the beginning.
+*/
+static int vstattabFilter(
+  sqlite3_vtab_cursor *pVtabCursor, 
+  int idxNum, const char *idxStr,
+  int argc, sqlite3_value **argv
+){
+  VfsStatCursor *pCur = (VfsStatCursor*)pVtabCursor;
+  pCur->i = 0;
+  return SQLITE_OK;
+}
+
+/*
+** Only a forwards full table scan is supported.  xBestIndex is a no-op.
+*/
+static int vstattabBestIndex(
+  sqlite3_vtab *tab,
+  sqlite3_index_info *pIdxInfo
+){
+  return SQLITE_OK;
+}
+
+/*
+** Any VSTAT_COLUMN_COUNT can be changed to a positive integer.
+** No deletions or insertions are allowed.  No changes to other
+** columns are allowed.
+*/
+static int vstattabUpdate(
+  sqlite3_vtab *tab,
+  int argc, sqlite3_value **argv,
+  sqlite3_int64 *pRowid
+){
+  sqlite3_int64 iRowid, x;
+  if( argc==1 ) return SQLITE_ERROR;
+  if( sqlite3_value_type(argv[0])!=SQLITE_INTEGER ) return SQLITE_ERROR;
+  iRowid = sqlite3_value_int64(argv[0]);
+  if( iRowid!=sqlite3_value_int64(argv[1]) ) return SQLITE_ERROR;
+  if( iRowid<0 || iRowid>=VFSSTAT_MXCNT ) return SQLITE_ERROR;
+  if( sqlite3_value_type(argv[VSTAT_COLUMN_COUNT+2])!=SQLITE_INTEGER ){
+    return SQLITE_ERROR;
+  }
+  x = sqlite3_value_int64(argv[VSTAT_COLUMN_COUNT+2]);
+  if( x<0 ) return SQLITE_ERROR;
+  aVfsCnt[iRowid] = x;
+  return SQLITE_OK;
+}
+
+static sqlite3_module VfsStatModule = {
+  0,                         /* iVersion */
+  0,                         /* xCreate */
+  vstattabConnect,           /* xConnect */
+  vstattabBestIndex,         /* xBestIndex */
+  vstattabDisconnect,        /* xDisconnect */
+  0,                         /* xDestroy */
+  vstattabOpen,              /* xOpen - open a cursor */
+  vstattabClose,             /* xClose - close a cursor */
+  vstattabFilter,            /* xFilter - configure scan constraints */
+  vstattabNext,              /* xNext - advance a cursor */
+  vstattabEof,               /* xEof - check for end of scan */
+  vstattabColumn,            /* xColumn - read data */
+  vstattabRowid,             /* xRowid - read data */
+  vstattabUpdate,            /* xUpdate */
+  0,                         /* xBegin */
+  0,                         /* xSync */
+  0,                         /* xCommit */
+  0,                         /* xRollback */
+  0,                         /* xFindMethod */
+  0,                         /* xRename */
+  0,                         /* xSavepoint */
+  0,                         /* xRelease */
+  0,                         /* xRollbackTo */
+  0,                         /* xShadowName */
+  0                          /* xIntegrity */
+};
+
+/*
+** This routine is an sqlite3_auto_extension() callback, invoked to register
+** the vfsstat virtual table for all new database connections.
+*/
+static int vstatRegister(
+  sqlite3 *db,
+  char **pzErrMsg,
+  const sqlite3_api_routines *pThunk
+){
+  return sqlite3_create_module(db, "vfsstat", &VfsStatModule, 0);
+}
+
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+/* 
+** This routine is called when the extension is loaded.
+**
+** Register the new VFS.  Make arrangement to register the virtual table
+** for each new database connection.
+*/
+int sqlite3_vfsstat_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  int rc = SQLITE_OK;
+  SQLITE_EXTENSION_INIT2(pApi);
+  vstat_vfs.pVfs = sqlite3_vfs_find(0);
+  if( vstat_vfs.pVfs==0 ) return SQLITE_ERROR;
+  vstat_vfs.base.szOsFile = sizeof(VStatFile) + vstat_vfs.pVfs->szOsFile;
+  rc = sqlite3_vfs_register(&vstat_vfs.base, 1);
+  if( rc==SQLITE_OK ){
+    rc = vstatRegister(db, pzErrMsg, pApi);
+    if( rc==SQLITE_OK ){
+      rc = sqlite3_auto_extension((void(*)(void))vstatRegister);
+    }
+  }
+  if( rc==SQLITE_OK ) rc = SQLITE_OK_LOAD_PERMANENTLY;
+  return rc;
+}
diff --git a/ext/misc/vfstrace.c b/ext/misc/vfstrace.c
new file mode 100644
index 0000000000000000000000000000000000000000..fed87e88f3e8370ade174b570d9fcf66adb4c8cf
--- /dev/null
+++ b/ext/misc/vfstrace.c
@@ -0,0 +1,1211 @@
+/*
+** 2011 March 16
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This file contains code implements a VFS shim that writes diagnostic
+** output for each VFS call, similar to "strace".
+**
+** USAGE:
+**
+** This source file exports a single symbol which is the name of a
+** function:
+**
+**   int vfstrace_register(
+**     const char *zTraceName,         // Name of the newly constructed VFS
+**     const char *zOldVfsName,        // Name of the underlying VFS
+**     int (*xOut)(const char*,void*), // Output routine.  ex: fputs
+**     void *pOutArg,                  // 2nd argument to xOut.  ex: stderr
+**     int makeDefault                 // Make the new VFS the default
+**   );
+**
+** Applications that want to trace their VFS usage must provide a callback
+** function with this prototype:
+**
+**   int traceOutput(const char *zMessage, void *pAppData);
+**
+** This function will "output" the trace messages, where "output" can
+** mean different things to different applications.  The traceOutput function
+** for the command-line shell (see shell.c) is "fputs" from the standard
+** library, which means that all trace output is written on the stream
+** specified by the second argument.  In the case of the command-line shell
+** the second argument is stderr.  Other applications might choose to output
+** trace information to a file, over a socket, or write it into a buffer.
+**
+** The vfstrace_register() function creates a new "shim" VFS named by
+** the zTraceName parameter.  A "shim" VFS is an SQLite backend that does
+** not really perform the duties of a true backend, but simply filters or
+** interprets VFS calls before passing them off to another VFS which does
+** the actual work.  In this case the other VFS - the one that does the
+** real work - is identified by the second parameter, zOldVfsName.  If
+** the 2nd parameter is NULL then the default VFS is used.  The common
+** case is for the 2nd parameter to be NULL.
+**
+** The third and fourth parameters are the pointer to the output function
+** and the second argument to the output function.  For the SQLite
+** command-line shell, when the -vfstrace option is used, these parameters
+** are fputs and stderr, respectively.
+**
+** The fifth argument is true (non-zero) to cause the newly created VFS
+** to become the default VFS.  The common case is for the fifth parameter
+** to be true.
+**
+** The call to vfstrace_register() simply creates the shim VFS that does
+** tracing.  The application must also arrange to use the new VFS for
+** all database connections that are created and for which tracing is 
+** desired.  This can be done by specifying the trace VFS using URI filename
+** notation, or by specifying the trace VFS as the 4th parameter to
+** sqlite3_open_v2() or by making the trace VFS be the default (by setting
+** the 5th parameter of vfstrace_register() to 1).
+**
+**
+** ENABLING VFSTRACE IN A COMMAND-LINE SHELL
+**
+** The SQLite command line shell implemented by the shell.c source file
+** can be used with this module.  To compile in -vfstrace support, first
+** gather this file (test_vfstrace.c), the shell source file (shell.c),
+** and the SQLite amalgamation source files (sqlite3.c, sqlite3.h) into
+** the working directory.  Then compile using a command like the following:
+**
+**    gcc -o sqlite3 -Os -I. -DSQLITE_ENABLE_VFSTRACE \
+**        -DSQLITE_THREADSAFE=0 -DSQLITE_ENABLE_FTS3 -DSQLITE_ENABLE_RTREE \
+**        -DHAVE_READLINE -DHAVE_USLEEP=1 \
+**        shell.c test_vfstrace.c sqlite3.c -ldl -lreadline -lncurses
+**
+** The gcc command above works on Linux and provides (in addition to the
+** -vfstrace option) support for FTS3 and FTS4, RTREE, and command-line
+** editing using the readline library.  The command-line shell does not
+** use threads so we added -DSQLITE_THREADSAFE=0 just to make the code
+** run a little faster.   For compiling on a Mac, you'll probably need
+** to omit the -DHAVE_READLINE, the -lreadline, and the -lncurses options.
+** The compilation could be simplified to just this:
+**
+**    gcc -DSQLITE_ENABLE_VFSTRACE \
+**         shell.c test_vfstrace.c sqlite3.c -ldl -lpthread
+**
+** In this second example, all unnecessary options have been removed
+** Note that since the code is now threadsafe, we had to add the -lpthread
+** option to pull in the pthreads library.
+**
+** To cross-compile for windows using MinGW, a command like this might
+** work:
+**
+**    /opt/mingw/bin/i386-mingw32msvc-gcc -o sqlite3.exe -Os -I \
+**         -DSQLITE_THREADSAFE=0 -DSQLITE_ENABLE_VFSTRACE \
+**         shell.c test_vfstrace.c sqlite3.c
+**
+** Similar compiler commands will work on different systems.  The key
+** invariants are (1) you must have -DSQLITE_ENABLE_VFSTRACE so that
+** the shell.c source file will know to include the -vfstrace command-line
+** option and (2) you must compile and link the three source files
+** shell,c, test_vfstrace.c, and sqlite3.c.
+**
+** RUNTIME CONTROL OF VFSTRACE OUTPUT
+**
+** The application can use the "vfstrace" pragma to control which VFS
+** APIs are traced.  To disable all output:
+**
+**    PRAGMA vfstrace('-all');
+**
+** To enable all output (which is the default setting):
+**
+**    PRAGMA vfstrace('+all');
+**
+** Individual APIs can be enabled or disabled by name, with or without
+** the initial "x" character.  For example, to set up for tracing lock
+** primatives only:
+**
+**    PRAGMA vfstrace('-all, +Lock,Unlock,ShmLock');
+**
+** The argument to the vfstrace pragma ignores capitalization and any
+** characters other than alphabetics, '+', and '-'.
+*/
+#include <stdlib.h>
+#include <string.h>
+#include "sqlite3.h"
+
+/*
+** An instance of this structure is attached to the each trace VFS to
+** provide auxiliary information.
+*/
+typedef struct vfstrace_info vfstrace_info;
+struct vfstrace_info {
+  sqlite3_vfs *pRootVfs;              /* The underlying real VFS */
+  int (*xOut)(const char*, void*);    /* Send output here */
+  unsigned int mTrace;                /* Mask of interfaces to trace */
+  u8 bOn;                             /* Tracing on/off */
+  void *pOutArg;                      /* First argument to xOut */
+  const char *zVfsName;               /* Name of this trace-VFS */
+  sqlite3_vfs *pTraceVfs;             /* Pointer back to the trace VFS */
+};
+
+/*
+** The sqlite3_file object for the trace VFS
+*/
+typedef struct vfstrace_file vfstrace_file;
+struct vfstrace_file {
+  sqlite3_file base;        /* Base class.  Must be first */
+  vfstrace_info *pInfo;     /* The trace-VFS to which this file belongs */
+  const char *zFName;       /* Base name of the file */
+  sqlite3_file *pReal;      /* The real underlying file */
+};
+
+/*
+** Bit values for vfstrace_info.mTrace.
+*/
+#define VTR_CLOSE           0x00000001
+#define VTR_READ            0x00000002
+#define VTR_WRITE           0x00000004
+#define VTR_TRUNC           0x00000008
+#define VTR_SYNC            0x00000010
+#define VTR_FSIZE           0x00000020
+#define VTR_LOCK            0x00000040
+#define VTR_UNLOCK          0x00000080
+#define VTR_CRL             0x00000100
+#define VTR_FCTRL           0x00000200
+#define VTR_SECSZ           0x00000400
+#define VTR_DEVCHAR         0x00000800
+#define VTR_SHMLOCK         0x00001000
+#define VTR_SHMMAP          0x00002000
+#define VTR_SHMBAR          0x00004000
+#define VTR_SHMUNMAP        0x00008000
+#define VTR_OPEN            0x00010000
+#define VTR_DELETE          0x00020000
+#define VTR_ACCESS          0x00040000
+#define VTR_FULLPATH        0x00080000
+#define VTR_DLOPEN          0x00100000
+#define VTR_DLERR           0x00200000
+#define VTR_DLSYM           0x00400000
+#define VTR_DLCLOSE         0x00800000
+#define VTR_RAND            0x01000000
+#define VTR_SLEEP           0x02000000
+#define VTR_CURTIME         0x04000000
+#define VTR_LASTERR         0x08000000
+#define VTR_FETCH           0x10000000   /* Also coverse xUnfetch */
+
+/*
+** Method declarations for vfstrace_file.
+*/
+static int vfstraceClose(sqlite3_file*);
+static int vfstraceRead(sqlite3_file*, void*, int iAmt, sqlite3_int64 iOfst);
+static int vfstraceWrite(sqlite3_file*,const void*,int iAmt, sqlite3_int64);
+static int vfstraceTruncate(sqlite3_file*, sqlite3_int64 size);
+static int vfstraceSync(sqlite3_file*, int flags);
+static int vfstraceFileSize(sqlite3_file*, sqlite3_int64 *pSize);
+static int vfstraceLock(sqlite3_file*, int);
+static int vfstraceUnlock(sqlite3_file*, int);
+static int vfstraceCheckReservedLock(sqlite3_file*, int *);
+static int vfstraceFileControl(sqlite3_file*, int op, void *pArg);
+static int vfstraceSectorSize(sqlite3_file*);
+static int vfstraceDeviceCharacteristics(sqlite3_file*);
+static int vfstraceShmLock(sqlite3_file*,int,int,int);
+static int vfstraceShmMap(sqlite3_file*,int,int,int, void volatile **);
+static void vfstraceShmBarrier(sqlite3_file*);
+static int vfstraceShmUnmap(sqlite3_file*,int);
+
+/*
+** Method declarations for vfstrace_vfs.
+*/
+static int vfstraceOpen(sqlite3_vfs*, const char *, sqlite3_file*, int , int *);
+static int vfstraceDelete(sqlite3_vfs*, const char *zName, int syncDir);
+static int vfstraceAccess(sqlite3_vfs*, const char *zName, int flags, int *);
+static int vfstraceFullPathname(sqlite3_vfs*, const char *zName, int, char *);
+static void *vfstraceDlOpen(sqlite3_vfs*, const char *zFilename);
+static void vfstraceDlError(sqlite3_vfs*, int nByte, char *zErrMsg);
+static void (*vfstraceDlSym(sqlite3_vfs*,void*, const char *zSymbol))(void);
+static void vfstraceDlClose(sqlite3_vfs*, void*);
+static int vfstraceRandomness(sqlite3_vfs*, int nByte, char *zOut);
+static int vfstraceSleep(sqlite3_vfs*, int microseconds);
+static int vfstraceCurrentTime(sqlite3_vfs*, double*);
+static int vfstraceGetLastError(sqlite3_vfs*, int, char*);
+static int vfstraceCurrentTimeInt64(sqlite3_vfs*, sqlite3_int64*);
+static int vfstraceSetSystemCall(sqlite3_vfs*,const char*, sqlite3_syscall_ptr);
+static sqlite3_syscall_ptr vfstraceGetSystemCall(sqlite3_vfs*, const char *);
+static const char *vfstraceNextSystemCall(sqlite3_vfs*, const char *zName);
+
+/*
+** Return a pointer to the tail of the pathname.  Examples:
+**
+**     /home/drh/xyzzy.txt -> xyzzy.txt
+**     xyzzy.txt           -> xyzzy.txt
+*/
+static const char *fileTail(const char *z){
+  size_t i;
+  if( z==0 ) return 0;
+  i = strlen(z)-1;
+  while( i>0 && z[i-1]!='/' ){ i--; }
+  return &z[i];
+}
+
+/*
+** Send trace output defined by zFormat and subsequent arguments.
+*/
+static void vfstrace_printf(
+  vfstrace_info *pInfo,
+  const char *zFormat,
+  ...
+){
+  va_list ap;
+  char *zMsg;
+  if( pInfo->bOn ){
+    va_start(ap, zFormat);
+    zMsg = sqlite3_vmprintf(zFormat, ap);
+    va_end(ap);
+    pInfo->xOut(zMsg, pInfo->pOutArg);
+    sqlite3_free(zMsg);
+  }
+}
+
+/*
+** Try to convert an error code into a symbolic name for that error code.
+*/
+static const char *vfstrace_errcode_name(int rc ){
+  const char *zVal = 0;
+  switch( rc ){
+    case SQLITE_OK:                 zVal = "SQLITE_OK";                 break;
+    case SQLITE_INTERNAL:           zVal = "SQLITE_INTERNAL";           break;
+    case SQLITE_ERROR:              zVal = "SQLITE_ERROR";              break;
+    case SQLITE_PERM:               zVal = "SQLITE_PERM";               break;
+    case SQLITE_ABORT:              zVal = "SQLITE_ABORT";              break;
+    case SQLITE_BUSY:               zVal = "SQLITE_BUSY";               break;
+    case SQLITE_LOCKED:             zVal = "SQLITE_LOCKED";             break;
+    case SQLITE_NOMEM:              zVal = "SQLITE_NOMEM";              break;
+    case SQLITE_READONLY:           zVal = "SQLITE_READONLY";           break;
+    case SQLITE_INTERRUPT:          zVal = "SQLITE_INTERRUPT";          break;
+    case SQLITE_IOERR:              zVal = "SQLITE_IOERR";              break;
+    case SQLITE_CORRUPT:            zVal = "SQLITE_CORRUPT";            break;
+    case SQLITE_NOTFOUND:           zVal = "SQLITE_NOTFOUND";           break;
+    case SQLITE_FULL:               zVal = "SQLITE_FULL";               break;
+    case SQLITE_CANTOPEN:           zVal = "SQLITE_CANTOPEN";           break;
+    case SQLITE_PROTOCOL:           zVal = "SQLITE_PROTOCOL";           break;
+    case SQLITE_EMPTY:              zVal = "SQLITE_EMPTY";              break;
+    case SQLITE_SCHEMA:             zVal = "SQLITE_SCHEMA";             break;
+    case SQLITE_TOOBIG:             zVal = "SQLITE_TOOBIG";             break;
+    case SQLITE_CONSTRAINT:         zVal = "SQLITE_CONSTRAINT";         break;
+    case SQLITE_MISMATCH:           zVal = "SQLITE_MISMATCH";           break;
+    case SQLITE_MISUSE:             zVal = "SQLITE_MISUSE";             break;
+    case SQLITE_NOLFS:              zVal = "SQLITE_NOLFS";              break;
+    case SQLITE_IOERR_READ:         zVal = "SQLITE_IOERR_READ";         break;
+    case SQLITE_IOERR_SHORT_READ:   zVal = "SQLITE_IOERR_SHORT_READ";   break;
+    case SQLITE_IOERR_WRITE:        zVal = "SQLITE_IOERR_WRITE";        break;
+    case SQLITE_IOERR_FSYNC:        zVal = "SQLITE_IOERR_FSYNC";        break;
+    case SQLITE_IOERR_DIR_FSYNC:    zVal = "SQLITE_IOERR_DIR_FSYNC";    break;
+    case SQLITE_IOERR_TRUNCATE:     zVal = "SQLITE_IOERR_TRUNCATE";     break;
+    case SQLITE_IOERR_FSTAT:        zVal = "SQLITE_IOERR_FSTAT";        break;
+    case SQLITE_IOERR_UNLOCK:       zVal = "SQLITE_IOERR_UNLOCK";       break;
+    case SQLITE_IOERR_RDLOCK:       zVal = "SQLITE_IOERR_RDLOCK";       break;
+    case SQLITE_IOERR_DELETE:       zVal = "SQLITE_IOERR_DELETE";       break;
+    case SQLITE_IOERR_BLOCKED:      zVal = "SQLITE_IOERR_BLOCKED";      break;
+    case SQLITE_IOERR_NOMEM:        zVal = "SQLITE_IOERR_NOMEM";        break;
+    case SQLITE_IOERR_ACCESS:       zVal = "SQLITE_IOERR_ACCESS";       break;
+    case SQLITE_IOERR_CHECKRESERVEDLOCK:
+                               zVal = "SQLITE_IOERR_CHECKRESERVEDLOCK"; break;
+    case SQLITE_IOERR_LOCK:         zVal = "SQLITE_IOERR_LOCK";         break;
+    case SQLITE_IOERR_CLOSE:        zVal = "SQLITE_IOERR_CLOSE";        break;
+    case SQLITE_IOERR_DIR_CLOSE:    zVal = "SQLITE_IOERR_DIR_CLOSE";    break;
+    case SQLITE_IOERR_SHMOPEN:      zVal = "SQLITE_IOERR_SHMOPEN";      break;
+    case SQLITE_IOERR_SHMSIZE:      zVal = "SQLITE_IOERR_SHMSIZE";      break;
+    case SQLITE_IOERR_SHMLOCK:      zVal = "SQLITE_IOERR_SHMLOCK";      break;
+    case SQLITE_IOERR_SHMMAP:       zVal = "SQLITE_IOERR_SHMMAP";       break;
+    case SQLITE_IOERR_SEEK:         zVal = "SQLITE_IOERR_SEEK";         break;
+    case SQLITE_IOERR_GETTEMPPATH:  zVal = "SQLITE_IOERR_GETTEMPPATH";  break;
+    case SQLITE_IOERR_CONVPATH:     zVal = "SQLITE_IOERR_CONVPATH";     break;
+    case SQLITE_READONLY_DBMOVED:   zVal = "SQLITE_READONLY_DBMOVED";   break;
+    case SQLITE_LOCKED_SHAREDCACHE: zVal = "SQLITE_LOCKED_SHAREDCACHE"; break;
+    case SQLITE_BUSY_RECOVERY:      zVal = "SQLITE_BUSY_RECOVERY";      break;
+    case SQLITE_CANTOPEN_NOTEMPDIR: zVal = "SQLITE_CANTOPEN_NOTEMPDIR"; break;
+  }
+  return zVal;
+}
+
+/*
+** Convert value rc into a string and print it using zFormat.  zFormat
+** should have exactly one %s
+*/
+static void vfstrace_print_errcode(
+  vfstrace_info *pInfo,
+  const char *zFormat,
+  int rc
+){
+  const char *zVal;
+  char zBuf[50];
+  zVal = vfstrace_errcode_name(rc);
+  if( zVal==0 ){
+    zVal = vfstrace_errcode_name(rc&0xff);
+    if( zVal ){
+      sqlite3_snprintf(sizeof(zBuf), zBuf, "%s | 0x%x", zVal, rc&0xffff00);
+    }else{
+      sqlite3_snprintf(sizeof(zBuf), zBuf, "%d (0x%x)", rc, rc);
+    }
+    zVal = zBuf;
+  }
+  vfstrace_printf(pInfo, zFormat, zVal);
+}
+
+/*
+** Append to a buffer.
+*/
+static void strappend(char *z, int *pI, const char *zAppend){
+  int i = *pI;
+  while( zAppend[0] ){ z[i++] = *(zAppend++); }
+  z[i] = 0;
+  *pI = i;
+}
+
+/*
+** Turn tracing output on or off according to mMask.
+*/
+static void vfstraceOnOff(vfstrace_info *pInfo, unsigned int mMask){
+  pInfo->bOn = (pInfo->mTrace & mMask)!=0;
+}
+
+/*
+** Close an vfstrace-file.
+*/
+static int vfstraceClose(sqlite3_file *pFile){
+  vfstrace_file *p = (vfstrace_file *)pFile;
+  vfstrace_info *pInfo = p->pInfo;
+  int rc;
+  vfstraceOnOff(pInfo, VTR_CLOSE);
+  vfstrace_printf(pInfo, "%s.xClose(%s)", pInfo->zVfsName, p->zFName);
+  rc = p->pReal->pMethods->xClose(p->pReal);
+  vfstrace_print_errcode(pInfo, " -> %s\n", rc);
+  if( rc==SQLITE_OK ){
+    sqlite3_free((void*)p->base.pMethods);
+    p->base.pMethods = 0;
+  }
+  return rc;
+}
+
+/*
+** Read data from an vfstrace-file.
+*/
+static int vfstraceRead(
+  sqlite3_file *pFile, 
+  void *zBuf, 
+  int iAmt, 
+  sqlite_int64 iOfst
+){
+  vfstrace_file *p = (vfstrace_file *)pFile;
+  vfstrace_info *pInfo = p->pInfo;
+  int rc;
+  vfstraceOnOff(pInfo, VTR_READ);
+  vfstrace_printf(pInfo, "%s.xRead(%s,n=%d,ofst=%lld)",
+                  pInfo->zVfsName, p->zFName, iAmt, iOfst);
+  rc = p->pReal->pMethods->xRead(p->pReal, zBuf, iAmt, iOfst);
+  vfstrace_print_errcode(pInfo, " -> %s\n", rc);
+  return rc;
+}
+
+/*
+** Write data to an vfstrace-file.
+*/
+static int vfstraceWrite(
+  sqlite3_file *pFile, 
+  const void *zBuf, 
+  int iAmt, 
+  sqlite_int64 iOfst
+){
+  vfstrace_file *p = (vfstrace_file *)pFile;
+  vfstrace_info *pInfo = p->pInfo;
+  int rc;
+  vfstraceOnOff(pInfo, VTR_WRITE);
+  vfstrace_printf(pInfo, "%s.xWrite(%s,n=%d,ofst=%lld)",
+                  pInfo->zVfsName, p->zFName, iAmt, iOfst);
+  rc = p->pReal->pMethods->xWrite(p->pReal, zBuf, iAmt, iOfst);
+  vfstrace_print_errcode(pInfo, " -> %s\n", rc);
+  return rc;
+}
+
+/*
+** Truncate an vfstrace-file.
+*/
+static int vfstraceTruncate(sqlite3_file *pFile, sqlite_int64 size){
+  vfstrace_file *p = (vfstrace_file *)pFile;
+  vfstrace_info *pInfo = p->pInfo;
+  int rc;
+  vfstraceOnOff(pInfo, VTR_TRUNC);
+  vfstrace_printf(pInfo, "%s.xTruncate(%s,%lld)", pInfo->zVfsName, p->zFName,
+                  size);
+  rc = p->pReal->pMethods->xTruncate(p->pReal, size);
+  vfstrace_printf(pInfo, " -> %d\n", rc);
+  return rc;
+}
+
+/*
+** Sync an vfstrace-file.
+*/
+static int vfstraceSync(sqlite3_file *pFile, int flags){
+  vfstrace_file *p = (vfstrace_file *)pFile;
+  vfstrace_info *pInfo = p->pInfo;
+  int rc;
+  int i;
+  char zBuf[100];
+  memcpy(zBuf, "|0", 3);
+  i = 0;
+  if( flags & SQLITE_SYNC_FULL )        strappend(zBuf, &i, "|FULL");
+  else if( flags & SQLITE_SYNC_NORMAL ) strappend(zBuf, &i, "|NORMAL");
+  if( flags & SQLITE_SYNC_DATAONLY )    strappend(zBuf, &i, "|DATAONLY");
+  if( flags & ~(SQLITE_SYNC_FULL|SQLITE_SYNC_DATAONLY) ){
+    sqlite3_snprintf(sizeof(zBuf)-i, &zBuf[i], "|0x%x", flags);
+  }
+  vfstraceOnOff(pInfo, VTR_SYNC);
+  vfstrace_printf(pInfo, "%s.xSync(%s,%s)", pInfo->zVfsName, p->zFName,
+                  &zBuf[1]);
+  rc = p->pReal->pMethods->xSync(p->pReal, flags);
+  vfstrace_printf(pInfo, " -> %d\n", rc);
+  return rc;
+}
+
+/*
+** Return the current file-size of an vfstrace-file.
+*/
+static int vfstraceFileSize(sqlite3_file *pFile, sqlite_int64 *pSize){
+  vfstrace_file *p = (vfstrace_file *)pFile;
+  vfstrace_info *pInfo = p->pInfo;
+  int rc;
+  vfstraceOnOff(pInfo, VTR_FSIZE);
+  vfstrace_printf(pInfo, "%s.xFileSize(%s)", pInfo->zVfsName, p->zFName);
+  rc = p->pReal->pMethods->xFileSize(p->pReal, pSize);
+  vfstrace_print_errcode(pInfo, " -> %s,", rc);
+  vfstrace_printf(pInfo, " size=%lld\n", *pSize);
+  return rc;
+}
+
+/*
+** Return the name of a lock.
+*/
+static const char *lockName(int eLock){
+  const char *azLockNames[] = {
+     "NONE", "SHARED", "RESERVED", "PENDING", "EXCLUSIVE"
+  };
+  if( eLock<0 || eLock>=(int)(sizeof(azLockNames)/sizeof(azLockNames[0])) ){
+    return "???";
+  }else{
+    return azLockNames[eLock];
+  }
+}
+
+/*
+** Lock an vfstrace-file.
+*/
+static int vfstraceLock(sqlite3_file *pFile, int eLock){
+  vfstrace_file *p = (vfstrace_file *)pFile;
+  vfstrace_info *pInfo = p->pInfo;
+  int rc;
+  vfstraceOnOff(pInfo, VTR_LOCK);
+  vfstrace_printf(pInfo, "%s.xLock(%s,%s)", pInfo->zVfsName, p->zFName,
+                  lockName(eLock));
+  rc = p->pReal->pMethods->xLock(p->pReal, eLock);
+  vfstrace_print_errcode(pInfo, " -> %s\n", rc);
+  return rc;
+}
+
+/*
+** Unlock an vfstrace-file.
+*/
+static int vfstraceUnlock(sqlite3_file *pFile, int eLock){
+  vfstrace_file *p = (vfstrace_file *)pFile;
+  vfstrace_info *pInfo = p->pInfo;
+  int rc;
+  vfstraceOnOff(pInfo, VTR_UNLOCK);
+  vfstrace_printf(pInfo, "%s.xUnlock(%s,%s)", pInfo->zVfsName, p->zFName,
+                  lockName(eLock));
+  rc = p->pReal->pMethods->xUnlock(p->pReal, eLock);
+  vfstrace_print_errcode(pInfo, " -> %s\n", rc);
+  return rc;
+}
+
+/*
+** Check if another file-handle holds a RESERVED lock on an vfstrace-file.
+*/
+static int vfstraceCheckReservedLock(sqlite3_file *pFile, int *pResOut){
+  vfstrace_file *p = (vfstrace_file *)pFile;
+  vfstrace_info *pInfo = p->pInfo;
+  int rc;
+  vfstraceOnOff(pInfo, VTR_CRL);
+  vfstrace_printf(pInfo, "%s.xCheckReservedLock(%s,%d)", 
+                  pInfo->zVfsName, p->zFName);
+  rc = p->pReal->pMethods->xCheckReservedLock(p->pReal, pResOut);
+  vfstrace_print_errcode(pInfo, " -> %s", rc);
+  vfstrace_printf(pInfo, ", out=%d\n", *pResOut);
+  return rc;
+}
+
+/*
+** File control method. For custom operations on an vfstrace-file.
+*/
+static int vfstraceFileControl(sqlite3_file *pFile, int op, void *pArg){
+  vfstrace_file *p = (vfstrace_file *)pFile;
+  vfstrace_info *pInfo = p->pInfo;
+  int rc;
+  char zBuf[100];
+  char zBuf2[100];
+  char *zOp;
+  char *zRVal = 0;
+  vfstraceOnOff(pInfo, VTR_FCTRL);
+  switch( op ){
+    case SQLITE_FCNTL_LOCKSTATE:           zOp = "LOCKSTATE";           break;
+    case SQLITE_GET_LOCKPROXYFILE:         zOp = "GET_LOCKPROXYFILE";   break;
+    case SQLITE_SET_LOCKPROXYFILE:         zOp = "SET_LOCKPROXYFILE";   break;
+    case SQLITE_LAST_ERRNO:                zOp = "LAST_ERRNO";          break;
+    case SQLITE_FCNTL_SIZE_HINT: {
+      sqlite3_snprintf(sizeof(zBuf), zBuf, "SIZE_HINT,%lld",
+                       *(sqlite3_int64*)pArg);
+      zOp = zBuf;
+      break;
+    }
+    case SQLITE_FCNTL_CHUNK_SIZE: {
+      sqlite3_snprintf(sizeof(zBuf), zBuf, "CHUNK_SIZE,%d", *(int*)pArg);
+      zOp = zBuf;
+      break;
+    }
+    case SQLITE_FCNTL_FILE_POINTER:        zOp = "FILE_POINTER";        break;
+    case SQLITE_FCNTL_WIN32_AV_RETRY:      zOp = "WIN32_AV_RETRY";      break;
+    case SQLITE_FCNTL_PERSIST_WAL: {
+       sqlite3_snprintf(sizeof(zBuf), zBuf, "PERSIST_WAL,%d", *(int*)pArg);
+       zOp = zBuf;
+       break;
+    }
+    case SQLITE_FCNTL_OVERWRITE:           zOp = "OVERWRITE";           break;
+    case SQLITE_FCNTL_VFSNAME:             zOp = "VFSNAME";             break;
+    case SQLITE_FCNTL_POWERSAFE_OVERWRITE: zOp = "POWERSAFE_OVERWRITE"; break;
+    case SQLITE_FCNTL_PRAGMA: {
+      const char *const* a = (const char*const*)pArg;
+      if( a[1] && strcmp(a[1],"vfstrace")==0 && a[2] ){
+        const u8 *zArg = (const u8*)a[2];
+        if( zArg[0]>='0' && zArg[0]<=9 ){
+          pInfo->mTrace = (sqlite3_uint64)strtoll(a[2], 0, 0);
+        }else{
+          static const struct {
+            const char *z;
+            unsigned int m;
+          } aKw[] = {
+            { "all",                   0xffffffff   },
+            { "close",                 VTR_CLOSE    },
+            { "read",                  VTR_READ     },
+            { "write",                 VTR_WRITE    },
+            { "truncate",              VTR_TRUNC    },
+            { "sync",                  VTR_SYNC     },
+            { "filesize",              VTR_FSIZE    },
+            { "lock",                  VTR_LOCK     },
+            { "unlock",                VTR_UNLOCK   },
+            { "checkreservedlock",     VTR_CRL      },
+            { "filecontrol",           VTR_FCTRL    },
+            { "sectorsize",            VTR_SECSZ    },
+            { "devicecharacteristics", VTR_DEVCHAR  },
+            { "shmlock",               VTR_SHMLOCK  },
+            { "shmmap",                VTR_SHMMAP   },
+            { "shmummap",              VTR_SHMUNMAP },
+            { "shmbarrier",            VTR_SHMBAR   },
+            { "open",                  VTR_OPEN     },
+            { "delete",                VTR_DELETE   },
+            { "access",                VTR_ACCESS   },
+            { "fullpathname",          VTR_FULLPATH },
+            { "dlopen",                VTR_DLOPEN   },
+            { "dlerror",               VTR_DLERR    },
+            { "dlsym",                 VTR_DLSYM    },
+            { "dlclose",               VTR_DLCLOSE  },
+            { "randomness",            VTR_RAND     },
+            { "sleep",                 VTR_SLEEP    },
+            { "currenttime",           VTR_CURTIME  },
+            { "currenttimeint64",      VTR_CURTIME  },
+            { "getlasterror",          VTR_LASTERR  },
+            { "fetch",                 VTR_FETCH    },
+          };
+          int onOff = 1;
+          while( zArg[0] ){
+            int jj, n;
+            while( zArg[0]!=0 && zArg[0]!='-' && zArg[0]!='+'
+                   && !isalpha(zArg[0]) ) zArg++;
+            if( zArg[0]==0 ) break;
+            if( zArg[0]=='-' ){
+              onOff = 0;
+              zArg++;
+            }else if( zArg[0]=='+' ){
+              onOff = 1;
+              zArg++;
+            }
+            while( !isalpha(zArg[0]) ){
+              if( zArg[0]==0 ) break;
+              zArg++;
+            }
+            if( zArg[0]=='x' && isalpha(zArg[1]) ) zArg++;
+            for(n=0; isalpha(zArg[n]); n++){}
+            for(jj=0; jj<(int)(sizeof(aKw)/sizeof(aKw[0])); jj++){
+              if( sqlite3_strnicmp(aKw[jj].z,(const char*)zArg,n)==0 ){
+                if( onOff ){
+                  pInfo->mTrace |= aKw[jj].m;
+                }else{
+                  pInfo->mTrace &= ~aKw[jj].m;
+                }
+                break;
+              }
+            }
+            zArg += n;
+          }
+        }
+      }
+      sqlite3_snprintf(sizeof(zBuf), zBuf, "PRAGMA,[%s,%s]",a[1],a[2]);
+      zOp = zBuf;
+      break;
+    }
+    case SQLITE_FCNTL_BUSYHANDLER:         zOp = "BUSYHANDLER";         break;
+    case SQLITE_FCNTL_TEMPFILENAME:        zOp = "TEMPFILENAME";        break;
+    case SQLITE_FCNTL_MMAP_SIZE: {
+      sqlite3_int64 iMMap = *(sqlite3_int64*)pArg;
+      sqlite3_snprintf(sizeof(zBuf), zBuf, "MMAP_SIZE,%lld",iMMap);
+      zOp = zBuf;
+      break;
+    }
+    case SQLITE_FCNTL_TRACE:               zOp = "TRACE";               break;
+    case SQLITE_FCNTL_HAS_MOVED:           zOp = "HAS_MOVED";           break;
+    case SQLITE_FCNTL_SYNC:                zOp = "SYNC";                break;
+    case SQLITE_FCNTL_COMMIT_PHASETWO:     zOp = "COMMIT_PHASETWO";     break;
+    case SQLITE_FCNTL_WIN32_SET_HANDLE:    zOp = "WIN32_SET_HANDLE";    break;
+    case SQLITE_FCNTL_WAL_BLOCK:           zOp = "WAL_BLOCK";           break;
+    case SQLITE_FCNTL_ZIPVFS:              zOp = "ZIPVFS";              break; 
+    case SQLITE_FCNTL_RBU:                 zOp = "RBU";                 break;
+    case SQLITE_FCNTL_VFS_POINTER:         zOp = "VFS_POINTER";         break;
+    case SQLITE_FCNTL_JOURNAL_POINTER:     zOp = "JOURNAL_POINTER";     break;
+    case SQLITE_FCNTL_WIN32_GET_HANDLE:    zOp = "WIN32_GET_HANDLE";    break;
+    case SQLITE_FCNTL_PDB:                 zOp = "PDB";                 break;
+    case SQLITE_FCNTL_BEGIN_ATOMIC_WRITE:  zOp = "BEGIN_ATOMIC_WRITE";  break;
+    case SQLITE_FCNTL_COMMIT_ATOMIC_WRITE: zOp = "COMMIT_ATOMIC_WRITE"; break;
+    case SQLITE_FCNTL_ROLLBACK_ATOMIC_WRITE: {
+       zOp = "ROLLBACK_ATOMIC_WRITE";
+       break;
+    }
+    case SQLITE_FCNTL_LOCK_TIMEOUT: {
+       sqlite3_snprintf(sizeof(zBuf), zBuf, "LOCK_TIMEOUT,%d", *(int*)pArg);
+       zOp = zBuf;
+       break;
+    }
+    case SQLITE_FCNTL_DATA_VERSION:        zOp = "DATA_VERSION";        break;
+    case SQLITE_FCNTL_SIZE_LIMIT:          zOp = "SIZE_LIMIT";          break;
+    case SQLITE_FCNTL_CKPT_DONE:           zOp = "CKPT_DONE";           break;
+    case SQLITE_FCNTL_RESERVE_BYTES:       zOp = "RESERVED_BYTES";      break;
+    case SQLITE_FCNTL_CKPT_START:          zOp = "CKPT_START";          break;
+    case SQLITE_FCNTL_EXTERNAL_READER:     zOp = "EXTERNAL_READER";     break;
+    case SQLITE_FCNTL_CKSM_FILE:           zOp = "CKSM_FILE";           break;
+    case SQLITE_FCNTL_RESET_CACHE:         zOp = "RESET_CACHE";         break;
+    case 0xca093fa0:                       zOp = "DB_UNCHANGED";        break;
+    default: {
+      sqlite3_snprintf(sizeof zBuf, zBuf, "%d", op);
+      zOp = zBuf;
+      break;
+    }
+  }
+  vfstrace_printf(pInfo, "%s.xFileControl(%s,%s)",
+                  pInfo->zVfsName, p->zFName, zOp);
+  rc = p->pReal->pMethods->xFileControl(p->pReal, op, pArg);
+  if( rc==SQLITE_OK ){
+    switch( op ){
+      case SQLITE_FCNTL_VFSNAME: {
+        *(char**)pArg = sqlite3_mprintf("vfstrace.%s/%z",
+                                    pInfo->zVfsName, *(char**)pArg);
+        zRVal = *(char**)pArg;
+        break;
+      }
+      case SQLITE_FCNTL_MMAP_SIZE: {
+        sqlite3_snprintf(sizeof(zBuf2), zBuf2, "%lld", *(sqlite3_int64*)pArg);
+        zRVal = zBuf2;
+        break;
+      }
+      case SQLITE_FCNTL_HAS_MOVED:
+      case SQLITE_FCNTL_PERSIST_WAL: {
+        sqlite3_snprintf(sizeof(zBuf2), zBuf2, "%d", *(int*)pArg);
+        zRVal = zBuf2;
+        break;
+      }
+      case SQLITE_FCNTL_PRAGMA:
+      case SQLITE_FCNTL_TEMPFILENAME: {
+        zRVal = *(char**)pArg;
+        break;
+      }
+    }
+  }
+  if( zRVal ){
+    vfstrace_print_errcode(pInfo, " -> %s", rc);
+    vfstrace_printf(pInfo, ", %s\n", zRVal);
+  }else{
+    vfstrace_print_errcode(pInfo, " -> %s\n", rc);
+  }
+  return rc;
+}
+
+/*
+** Return the sector-size in bytes for an vfstrace-file.
+*/
+static int vfstraceSectorSize(sqlite3_file *pFile){
+  vfstrace_file *p = (vfstrace_file *)pFile;
+  vfstrace_info *pInfo = p->pInfo;
+  int rc;
+  vfstraceOnOff(pInfo, VTR_SECSZ);
+  vfstrace_printf(pInfo, "%s.xSectorSize(%s)", pInfo->zVfsName, p->zFName);
+  rc = p->pReal->pMethods->xSectorSize(p->pReal);
+  vfstrace_printf(pInfo, " -> %d\n", rc);
+  return rc;
+}
+
+/*
+** Return the device characteristic flags supported by an vfstrace-file.
+*/
+static int vfstraceDeviceCharacteristics(sqlite3_file *pFile){
+  vfstrace_file *p = (vfstrace_file *)pFile;
+  vfstrace_info *pInfo = p->pInfo;
+  int rc;
+  vfstraceOnOff(pInfo, VTR_DEVCHAR);
+  vfstrace_printf(pInfo, "%s.xDeviceCharacteristics(%s)",
+                  pInfo->zVfsName, p->zFName);
+  rc = p->pReal->pMethods->xDeviceCharacteristics(p->pReal);
+  vfstrace_printf(pInfo, " -> 0x%08x\n", rc);
+  return rc;
+}
+
+/*
+** Shared-memory operations.
+*/
+static int vfstraceShmLock(sqlite3_file *pFile, int ofst, int n, int flags){
+  static const char *azLockName[] = {
+     "WRITE",
+     "CKPT",
+     "RECOVER",
+     "READ0",
+     "READ1",
+     "READ2",
+     "READ3",
+     "READ4",
+  };
+  vfstrace_file *p = (vfstrace_file *)pFile;
+  vfstrace_info *pInfo = p->pInfo;
+  int rc;
+  char zLck[100];
+  int i = 0;
+  vfstraceOnOff(pInfo, VTR_SHMLOCK);
+  memcpy(zLck, "|0", 3);
+  if( flags & SQLITE_SHM_UNLOCK )    strappend(zLck, &i, "|UNLOCK");
+  if( flags & SQLITE_SHM_LOCK )      strappend(zLck, &i, "|LOCK");
+  if( flags & SQLITE_SHM_SHARED )    strappend(zLck, &i, "|SHARED");
+  if( flags & SQLITE_SHM_EXCLUSIVE ) strappend(zLck, &i, "|EXCLUSIVE");
+  if( flags & ~(0xf) ){
+     sqlite3_snprintf(sizeof(zLck)-i, &zLck[i], "|0x%x", flags);
+  }
+  if( ofst>=0 && ofst<(int)(sizeof(azLockName)/sizeof(azLockName[0])) ){
+    vfstrace_printf(pInfo, "%s.xShmLock(%s,ofst=%d(%s),n=%d,%s)",
+                  pInfo->zVfsName, p->zFName, ofst, azLockName[ofst],
+                  n, &zLck[1]);
+  }else{
+    vfstrace_printf(pInfo, "%s.xShmLock(%s,ofst=5d,n=%d,%s)",
+                  pInfo->zVfsName, p->zFName, ofst,
+                  n, &zLck[1]);
+  }
+  rc = p->pReal->pMethods->xShmLock(p->pReal, ofst, n, flags);
+  vfstrace_print_errcode(pInfo, " -> %s\n", rc);
+  return rc;
+}
+static int vfstraceShmMap(
+  sqlite3_file *pFile, 
+  int iRegion, 
+  int szRegion, 
+  int isWrite, 
+  void volatile **pp
+){
+  vfstrace_file *p = (vfstrace_file *)pFile;
+  vfstrace_info *pInfo = p->pInfo;
+  int rc;
+  vfstraceOnOff(pInfo, VTR_SHMMAP);
+  vfstrace_printf(pInfo, "%s.xShmMap(%s,iRegion=%d,szRegion=%d,isWrite=%d,*)",
+                  pInfo->zVfsName, p->zFName, iRegion, szRegion, isWrite);
+  rc = p->pReal->pMethods->xShmMap(p->pReal, iRegion, szRegion, isWrite, pp);
+  vfstrace_print_errcode(pInfo, " -> %s\n", rc);
+  return rc;
+}
+static void vfstraceShmBarrier(sqlite3_file *pFile){
+  vfstrace_file *p = (vfstrace_file *)pFile;
+  vfstrace_info *pInfo = p->pInfo;
+  vfstraceOnOff(pInfo, VTR_SHMBAR);
+  vfstrace_printf(pInfo, "%s.xShmBarrier(%s)\n", pInfo->zVfsName, p->zFName);
+  p->pReal->pMethods->xShmBarrier(p->pReal);
+}
+static int vfstraceShmUnmap(sqlite3_file *pFile, int delFlag){
+  vfstrace_file *p = (vfstrace_file *)pFile;
+  vfstrace_info *pInfo = p->pInfo;
+  int rc;
+  vfstraceOnOff(pInfo, VTR_SHMUNMAP);
+  vfstrace_printf(pInfo, "%s.xShmUnmap(%s,delFlag=%d)",
+                  pInfo->zVfsName, p->zFName, delFlag);
+  rc = p->pReal->pMethods->xShmUnmap(p->pReal, delFlag);
+  vfstrace_print_errcode(pInfo, " -> %s\n", rc);
+  return rc;
+}
+static int vfstraceFetch(sqlite3_file *pFile, i64 iOff, int nAmt, void **pptr){
+  vfstrace_file *p = (vfstrace_file *)pFile;
+  vfstrace_info *pInfo = p->pInfo;
+  int rc;
+  vfstraceOnOff(pInfo, VTR_FETCH);
+  vfstrace_printf(pInfo, "%s.xFetch(%s,iOff=%lld,nAmt=%d,p=%p)",
+                  pInfo->zVfsName, p->zFName, iOff, nAmt, *pptr);
+  rc = p->pReal->pMethods->xFetch(p->pReal, iOff, nAmt, pptr);
+  vfstrace_print_errcode(pInfo, " -> %s\n", rc);
+  return rc;
+}
+static int vfstraceUnfetch(sqlite3_file *pFile, i64 iOff, void *ptr){
+  vfstrace_file *p = (vfstrace_file *)pFile;
+  vfstrace_info *pInfo = p->pInfo;
+  int rc;
+  vfstraceOnOff(pInfo, VTR_FETCH);
+  vfstrace_printf(pInfo, "%s.xUnfetch(%s,iOff=%lld,p=%p)",
+                  pInfo->zVfsName, p->zFName, iOff, ptr);
+  rc = p->pReal->pMethods->xUnfetch(p->pReal, iOff, ptr);
+  vfstrace_print_errcode(pInfo, " -> %s\n", rc);
+  return rc;
+}
+
+
+/*
+** Open an vfstrace file handle.
+*/
+static int vfstraceOpen(
+  sqlite3_vfs *pVfs,
+  const char *zName,
+  sqlite3_file *pFile,
+  int flags,
+  int *pOutFlags
+){
+  int rc;
+  vfstrace_file *p = (vfstrace_file *)pFile;
+  vfstrace_info *pInfo = (vfstrace_info*)pVfs->pAppData;
+  sqlite3_vfs *pRoot = pInfo->pRootVfs;
+  p->pInfo = pInfo;
+  p->zFName = zName ? fileTail(zName) : "<temp>";
+  p->pReal = (sqlite3_file *)&p[1];
+  rc = pRoot->xOpen(pRoot, zName, p->pReal, flags, pOutFlags);
+  vfstraceOnOff(pInfo, VTR_OPEN);
+  vfstrace_printf(pInfo, "%s.xOpen(%s,flags=0x%x)",
+                  pInfo->zVfsName, p->zFName, flags);
+  if( p->pReal->pMethods ){
+    sqlite3_io_methods *pNew = sqlite3_malloc( sizeof(*pNew) );
+    const sqlite3_io_methods *pSub = p->pReal->pMethods;
+    memset(pNew, 0, sizeof(*pNew));
+    pNew->iVersion = pSub->iVersion;
+    pNew->xClose = vfstraceClose;
+    pNew->xRead = vfstraceRead;
+    pNew->xWrite = vfstraceWrite;
+    pNew->xTruncate = vfstraceTruncate;
+    pNew->xSync = vfstraceSync;
+    pNew->xFileSize = vfstraceFileSize;
+    pNew->xLock = vfstraceLock;
+    pNew->xUnlock = vfstraceUnlock;
+    pNew->xCheckReservedLock = vfstraceCheckReservedLock;
+    pNew->xFileControl = vfstraceFileControl;
+    pNew->xSectorSize = vfstraceSectorSize;
+    pNew->xDeviceCharacteristics = vfstraceDeviceCharacteristics;
+    if( pNew->iVersion>=2 ){
+      pNew->xShmMap = pSub->xShmMap ? vfstraceShmMap : 0;
+      pNew->xShmLock = pSub->xShmLock ? vfstraceShmLock : 0;
+      pNew->xShmBarrier = pSub->xShmBarrier ? vfstraceShmBarrier : 0;
+      pNew->xShmUnmap = pSub->xShmUnmap ? vfstraceShmUnmap : 0;
+    }
+    if( pNew->iVersion>=3 ){
+      pNew->xFetch = pSub->xFetch ? vfstraceFetch : 0;
+      pNew->xUnfetch = pSub->xUnfetch ? vfstraceUnfetch : 0;
+    }
+    pFile->pMethods = pNew;
+  }
+  vfstrace_print_errcode(pInfo, " -> %s", rc);
+  if( pOutFlags ){
+    vfstrace_printf(pInfo, ", outFlags=0x%x\n", *pOutFlags);
+  }else{
+    vfstrace_printf(pInfo, "\n");
+  }
+  return rc;
+}
+
+/*
+** Delete the file located at zPath. If the dirSync argument is true,
+** ensure the file-system modifications are synced to disk before
+** returning.
+*/
+static int vfstraceDelete(sqlite3_vfs *pVfs, const char *zPath, int dirSync){
+  vfstrace_info *pInfo = (vfstrace_info*)pVfs->pAppData;
+  sqlite3_vfs *pRoot = pInfo->pRootVfs;
+  int rc;
+  vfstraceOnOff(pInfo, VTR_DELETE);
+  vfstrace_printf(pInfo, "%s.xDelete(\"%s\",%d)",
+                  pInfo->zVfsName, zPath, dirSync);
+  rc = pRoot->xDelete(pRoot, zPath, dirSync);
+  vfstrace_print_errcode(pInfo, " -> %s\n", rc);
+  return rc;
+}
+
+/*
+** Test for access permissions. Return true if the requested permission
+** is available, or false otherwise.
+*/
+static int vfstraceAccess(
+  sqlite3_vfs *pVfs, 
+  const char *zPath, 
+  int flags, 
+  int *pResOut
+){
+  vfstrace_info *pInfo = (vfstrace_info*)pVfs->pAppData;
+  sqlite3_vfs *pRoot = pInfo->pRootVfs;
+  int rc;
+  vfstraceOnOff(pInfo, VTR_ACCESS);
+  vfstrace_printf(pInfo, "%s.xAccess(\"%s\",%d)",
+                  pInfo->zVfsName, zPath, flags);
+  rc = pRoot->xAccess(pRoot, zPath, flags, pResOut);
+  vfstrace_print_errcode(pInfo, " -> %s", rc);
+  vfstrace_printf(pInfo, ", out=%d\n", *pResOut);
+  return rc;
+}
+
+/*
+** Populate buffer zOut with the full canonical pathname corresponding
+** to the pathname in zPath. zOut is guaranteed to point to a buffer
+** of at least (DEVSYM_MAX_PATHNAME+1) bytes.
+*/
+static int vfstraceFullPathname(
+  sqlite3_vfs *pVfs, 
+  const char *zPath, 
+  int nOut, 
+  char *zOut
+){
+  vfstrace_info *pInfo = (vfstrace_info*)pVfs->pAppData;
+  sqlite3_vfs *pRoot = pInfo->pRootVfs;
+  int rc;
+  vfstraceOnOff(pInfo, VTR_FULLPATH);
+  vfstrace_printf(pInfo, "%s.xFullPathname(\"%s\")",
+                  pInfo->zVfsName, zPath);
+  rc = pRoot->xFullPathname(pRoot, zPath, nOut, zOut);
+  vfstrace_print_errcode(pInfo, " -> %s", rc);
+  vfstrace_printf(pInfo, ", out=\"%.*s\"\n", nOut, zOut);
+  return rc;
+}
+
+/*
+** Open the dynamic library located at zPath and return a handle.
+*/
+static void *vfstraceDlOpen(sqlite3_vfs *pVfs, const char *zPath){
+  vfstrace_info *pInfo = (vfstrace_info*)pVfs->pAppData;
+  sqlite3_vfs *pRoot = pInfo->pRootVfs;
+  vfstraceOnOff(pInfo, VTR_DLOPEN);
+  vfstrace_printf(pInfo, "%s.xDlOpen(\"%s\")\n", pInfo->zVfsName, zPath);
+  return pRoot->xDlOpen(pRoot, zPath);
+}
+
+/*
+** Populate the buffer zErrMsg (size nByte bytes) with a human readable
+** utf-8 string describing the most recent error encountered associated 
+** with dynamic libraries.
+*/
+static void vfstraceDlError(sqlite3_vfs *pVfs, int nByte, char *zErrMsg){
+  vfstrace_info *pInfo = (vfstrace_info*)pVfs->pAppData;
+  sqlite3_vfs *pRoot = pInfo->pRootVfs;
+  vfstraceOnOff(pInfo, VTR_DLERR);
+  vfstrace_printf(pInfo, "%s.xDlError(%d)", pInfo->zVfsName, nByte);
+  pRoot->xDlError(pRoot, nByte, zErrMsg);
+  vfstrace_printf(pInfo, " -> \"%s\"", zErrMsg);
+}
+
+/*
+** Return a pointer to the symbol zSymbol in the dynamic library pHandle.
+*/
+static void (*vfstraceDlSym(sqlite3_vfs *pVfs,void *p,const char *zSym))(void){
+  vfstrace_info *pInfo = (vfstrace_info*)pVfs->pAppData;
+  sqlite3_vfs *pRoot = pInfo->pRootVfs;
+  vfstrace_printf(pInfo, "%s.xDlSym(\"%s\")\n", pInfo->zVfsName, zSym);
+  return pRoot->xDlSym(pRoot, p, zSym);
+}
+
+/*
+** Close the dynamic library handle pHandle.
+*/
+static void vfstraceDlClose(sqlite3_vfs *pVfs, void *pHandle){
+  vfstrace_info *pInfo = (vfstrace_info*)pVfs->pAppData;
+  sqlite3_vfs *pRoot = pInfo->pRootVfs;
+  vfstraceOnOff(pInfo, VTR_DLCLOSE);
+  vfstrace_printf(pInfo, "%s.xDlOpen()\n", pInfo->zVfsName);
+  pRoot->xDlClose(pRoot, pHandle);
+}
+
+/*
+** Populate the buffer pointed to by zBufOut with nByte bytes of 
+** random data.
+*/
+static int vfstraceRandomness(sqlite3_vfs *pVfs, int nByte, char *zBufOut){
+  vfstrace_info *pInfo = (vfstrace_info*)pVfs->pAppData;
+  sqlite3_vfs *pRoot = pInfo->pRootVfs;
+  vfstraceOnOff(pInfo, VTR_RAND);
+  vfstrace_printf(pInfo, "%s.xRandomness(%d)\n", pInfo->zVfsName, nByte);
+  return pRoot->xRandomness(pRoot, nByte, zBufOut);
+}
+
+/*
+** Sleep for nMicro microseconds. Return the number of microseconds 
+** actually slept.
+*/
+static int vfstraceSleep(sqlite3_vfs *pVfs, int nMicro){
+  vfstrace_info *pInfo = (vfstrace_info*)pVfs->pAppData;
+  sqlite3_vfs *pRoot = pInfo->pRootVfs;
+  vfstraceOnOff(pInfo, VTR_SLEEP);
+  vfstrace_printf(pInfo, "%s.xSleep(%d)\n", pInfo->zVfsName, nMicro);
+  return pRoot->xSleep(pRoot, nMicro);
+}
+
+/*
+** Return the current time as a Julian Day number in *pTimeOut.
+*/
+static int vfstraceCurrentTime(sqlite3_vfs *pVfs, double *pTimeOut){
+  vfstrace_info *pInfo = (vfstrace_info*)pVfs->pAppData;
+  sqlite3_vfs *pRoot = pInfo->pRootVfs;
+  int rc;
+  vfstraceOnOff(pInfo, VTR_CURTIME);
+  vfstrace_printf(pInfo, "%s.xCurrentTime()", pInfo->zVfsName);
+  rc = pRoot->xCurrentTime(pRoot, pTimeOut);
+  vfstrace_printf(pInfo, " -> %.17g\n", *pTimeOut);
+  return rc;
+}
+static int vfstraceCurrentTimeInt64(sqlite3_vfs *pVfs, sqlite3_int64 *pTimeOut){
+  vfstrace_info *pInfo = (vfstrace_info*)pVfs->pAppData;
+  sqlite3_vfs *pRoot = pInfo->pRootVfs;
+  int rc;
+  vfstraceOnOff(pInfo, VTR_CURTIME);
+  vfstrace_printf(pInfo, "%s.xCurrentTimeInt64()", pInfo->zVfsName);
+  rc = pRoot->xCurrentTimeInt64(pRoot, pTimeOut);
+  vfstrace_printf(pInfo, " -> %lld\n", *pTimeOut);
+  return rc;
+}
+
+/*
+** Return the most recent error code and message
+*/
+static int vfstraceGetLastError(sqlite3_vfs *pVfs, int nErr, char *zErr){
+  vfstrace_info *pInfo = (vfstrace_info*)pVfs->pAppData;
+  sqlite3_vfs *pRoot = pInfo->pRootVfs;
+  int rc;
+  vfstraceOnOff(pInfo, VTR_LASTERR);
+  vfstrace_printf(pInfo, "%s.xGetLastError(%d,zBuf)", pInfo->zVfsName, nErr);
+  if( nErr ) zErr[0] = 0;
+  rc = pRoot->xGetLastError(pRoot, nErr, zErr);
+  vfstrace_printf(pInfo, " -> zBuf[] = \"%s\", rc = %d\n", nErr?zErr:"", rc);
+  return rc;
+}
+
+/*
+** Override system calls.
+*/
+static int vfstraceSetSystemCall(
+  sqlite3_vfs *pVfs,
+  const char *zName,
+  sqlite3_syscall_ptr pFunc
+){
+  vfstrace_info *pInfo = (vfstrace_info*)pVfs->pAppData;
+  sqlite3_vfs *pRoot = pInfo->pRootVfs;
+  return pRoot->xSetSystemCall(pRoot, zName, pFunc);
+}
+static sqlite3_syscall_ptr vfstraceGetSystemCall(
+  sqlite3_vfs *pVfs,
+  const char *zName
+){
+  vfstrace_info *pInfo = (vfstrace_info*)pVfs->pAppData;
+  sqlite3_vfs *pRoot = pInfo->pRootVfs;
+  return pRoot->xGetSystemCall(pRoot, zName);
+}
+static const char *vfstraceNextSystemCall(sqlite3_vfs *pVfs, const char *zName){
+  vfstrace_info *pInfo = (vfstrace_info*)pVfs->pAppData;
+  sqlite3_vfs *pRoot = pInfo->pRootVfs;
+  return pRoot->xNextSystemCall(pRoot, zName);
+}
+
+
+/*
+** Clients invoke this routine to construct a new trace-vfs shim.
+**
+** Return SQLITE_OK on success.  
+**
+** SQLITE_NOMEM is returned in the case of a memory allocation error.
+** SQLITE_NOTFOUND is returned if zOldVfsName does not exist.
+*/
+int vfstrace_register(
+   const char *zTraceName,           /* Name of the newly constructed VFS */
+   const char *zOldVfsName,          /* Name of the underlying VFS */
+   int (*xOut)(const char*,void*),   /* Output routine.  ex: fputs */
+   void *pOutArg,                    /* 2nd argument to xOut.  ex: stderr */
+   int makeDefault                   /* True to make the new VFS the default */
+){
+  sqlite3_vfs *pNew;
+  sqlite3_vfs *pRoot;
+  vfstrace_info *pInfo;
+  size_t nName;
+  size_t nByte;
+
+  pRoot = sqlite3_vfs_find(zOldVfsName);
+  if( pRoot==0 ) return SQLITE_NOTFOUND;
+  nName = strlen(zTraceName);
+  nByte = sizeof(*pNew) + sizeof(*pInfo) + nName + 1;
+  pNew = sqlite3_malloc64( nByte );
+  if( pNew==0 ) return SQLITE_NOMEM;
+  memset(pNew, 0, nByte);
+  pInfo = (vfstrace_info*)&pNew[1];
+  pNew->iVersion = pRoot->iVersion;
+  pNew->szOsFile = pRoot->szOsFile + sizeof(vfstrace_file);
+  pNew->mxPathname = pRoot->mxPathname;
+  pNew->zName = (char*)&pInfo[1];
+  memcpy((char*)&pInfo[1], zTraceName, nName+1);
+  pNew->pAppData = pInfo;
+  pNew->xOpen = vfstraceOpen;
+  pNew->xDelete = vfstraceDelete;
+  pNew->xAccess = vfstraceAccess;
+  pNew->xFullPathname = vfstraceFullPathname;
+  pNew->xDlOpen = pRoot->xDlOpen==0 ? 0 : vfstraceDlOpen;
+  pNew->xDlError = pRoot->xDlError==0 ? 0 : vfstraceDlError;
+  pNew->xDlSym = pRoot->xDlSym==0 ? 0 : vfstraceDlSym;
+  pNew->xDlClose = pRoot->xDlClose==0 ? 0 : vfstraceDlClose;
+  pNew->xRandomness = vfstraceRandomness;
+  pNew->xSleep = vfstraceSleep;
+  pNew->xCurrentTime = vfstraceCurrentTime;
+  pNew->xGetLastError = pRoot->xGetLastError==0 ? 0 : vfstraceGetLastError;
+  if( pNew->iVersion>=2 ){
+    pNew->xCurrentTimeInt64 = pRoot->xCurrentTimeInt64==0 ? 0 :
+                                   vfstraceCurrentTimeInt64;
+    if( pNew->iVersion>=3 ){
+      pNew->xSetSystemCall = pRoot->xSetSystemCall==0 ? 0 : 
+                                   vfstraceSetSystemCall;
+      pNew->xGetSystemCall = pRoot->xGetSystemCall==0 ? 0 : 
+                                   vfstraceGetSystemCall;
+      pNew->xNextSystemCall = pRoot->xNextSystemCall==0 ? 0 : 
+                                   vfstraceNextSystemCall;
+    }
+  }
+  pInfo->pRootVfs = pRoot;
+  pInfo->xOut = xOut;
+  pInfo->pOutArg = pOutArg;
+  pInfo->zVfsName = pNew->zName;
+  pInfo->pTraceVfs = pNew;
+  pInfo->mTrace = 0xffffffff;
+  pInfo->bOn = 1;
+  vfstrace_printf(pInfo, "%s.enabled_for(\"%s\")\n",
+       pInfo->zVfsName, pRoot->zName);
+  return sqlite3_vfs_register(pNew, makeDefault);
+}
+
+/*
+** Look for the named VFS.  If it is a TRACEVFS, then unregister it
+** and delete it.
+*/
+void vfstrace_unregister(const char *zTraceName){
+  sqlite3_vfs *pVfs = sqlite3_vfs_find(zTraceName);
+  if( pVfs==0 ) return;
+  if( pVfs->xOpen!=vfstraceOpen ) return;
+  sqlite3_vfs_unregister(pVfs);
+  sqlite3_free(pVfs);
+}
diff --git a/ext/misc/vtablog.c b/ext/misc/vtablog.c
new file mode 100644
index 0000000000000000000000000000000000000000..2cc29c285f91322ae48e16c33213f7307abe6ba8
--- /dev/null
+++ b/ext/misc/vtablog.c
@@ -0,0 +1,625 @@
+/*
+** 2017-08-10
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** This file implements a virtual table that prints diagnostic information
+** on stdout when its key interfaces are called.  This is intended for
+** interactive analysis and debugging of virtual table interfaces.
+**
+** Usage example:
+**
+**     .load ./vtablog
+**     CREATE VIRTUAL TABLE temp.log USING vtablog(
+**        schema='CREATE TABLE x(a,b,c)',
+**        rows=25
+**     );
+**     SELECT * FROM log;
+*/
+#include "sqlite3ext.h"
+SQLITE_EXTENSION_INIT1
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+#include <string.h>
+#include <ctype.h>
+
+
+/* vtablog_vtab is a subclass of sqlite3_vtab which will
+** serve as the underlying representation of a vtablog virtual table
+*/
+typedef struct vtablog_vtab vtablog_vtab;
+struct vtablog_vtab {
+  sqlite3_vtab base;  /* Base class - must be first */
+  char *zDb;          /* Schema name.  argv[1] of xConnect/xCreate */
+  char *zName;        /* Table name.  argv[2] of xConnect/xCreate */
+  int nRow;           /* Number of rows in the table */
+  int nCursor;        /* Number of cursors created */
+};
+
+/* vtablog_cursor is a subclass of sqlite3_vtab_cursor which will
+** serve as the underlying representation of a cursor that scans
+** over rows of the result
+*/
+typedef struct vtablog_cursor vtablog_cursor;
+struct vtablog_cursor {
+  sqlite3_vtab_cursor base;  /* Base class - must be first */
+  int iCursor;               /* Cursor number */
+  sqlite3_int64 iRowid;      /* The rowid */
+};
+
+/* Skip leading whitespace.  Return a pointer to the first non-whitespace
+** character, or to the zero terminator if the string has only whitespace */
+static const char *vtablog_skip_whitespace(const char *z){
+  while( isspace((unsigned char)z[0]) ) z++;
+  return z;
+}
+
+/* Remove trailing whitespace from the end of string z[] */
+static void vtablog_trim_whitespace(char *z){
+  size_t n = strlen(z);
+  while( n>0 && isspace((unsigned char)z[n]) ) n--;
+  z[n] = 0;
+}
+
+/* Dequote the string */
+static void vtablog_dequote(char *z){
+  int j;
+  char cQuote = z[0];
+  size_t i, n;
+
+  if( cQuote!='\'' && cQuote!='"' ) return;
+  n = strlen(z);
+  if( n<2 || z[n-1]!=z[0] ) return;
+  for(i=1, j=0; i<n-1; i++){
+    if( z[i]==cQuote && z[i+1]==cQuote ) i++;
+    z[j++] = z[i];
+  }
+  z[j] = 0;
+}
+
+/* Check to see if the string is of the form:  "TAG = VALUE" with optional
+** whitespace before and around tokens.  If it is, return a pointer to the
+** first character of VALUE.  If it is not, return NULL.
+*/
+static const char *vtablog_parameter(const char *zTag, int nTag, const char *z){
+  z = vtablog_skip_whitespace(z);
+  if( strncmp(zTag, z, nTag)!=0 ) return 0;
+  z = vtablog_skip_whitespace(z+nTag);
+  if( z[0]!='=' ) return 0;
+  return vtablog_skip_whitespace(z+1);
+}
+
+/* Decode a parameter that requires a dequoted string.
+**
+** Return non-zero on an error.
+*/
+static int vtablog_string_parameter(
+  char **pzErr,            /* Leave the error message here, if there is one */
+  const char *zParam,      /* Parameter we are checking for */
+  const char *zArg,        /* Raw text of the virtual table argment */
+  char **pzVal             /* Write the dequoted string value here */
+){
+  const char *zValue;
+  zValue = vtablog_parameter(zParam,(int)strlen(zParam),zArg);
+  if( zValue==0 ) return 0;
+  if( *pzVal ){
+    *pzErr = sqlite3_mprintf("more than one '%s' parameter", zParam);
+    return 1;
+  }
+  *pzVal = sqlite3_mprintf("%s", zValue);
+  if( *pzVal==0 ){
+    *pzErr = sqlite3_mprintf("out of memory");
+    return 1;
+  }
+  vtablog_trim_whitespace(*pzVal);
+  vtablog_dequote(*pzVal);
+  return 0;
+}
+
+#if 0 /* not used - yet */
+/* Return 0 if the argument is false and 1 if it is true.  Return -1 if
+** we cannot really tell.
+*/
+static int vtablog_boolean(const char *z){
+  if( sqlite3_stricmp("yes",z)==0
+   || sqlite3_stricmp("on",z)==0
+   || sqlite3_stricmp("true",z)==0
+   || (z[0]=='1' && z[1]==0)
+  ){
+    return 1;
+  }
+  if( sqlite3_stricmp("no",z)==0
+   || sqlite3_stricmp("off",z)==0
+   || sqlite3_stricmp("false",z)==0
+   || (z[0]=='0' && z[1]==0)
+  ){
+    return 0;
+  }
+  return -1;
+}
+#endif
+
+/*
+** The vtablogConnect() method is invoked to create a new
+** vtablog_vtab that describes the vtablog virtual table.
+**
+** Think of this routine as the constructor for vtablog_vtab objects.
+**
+** All this routine needs to do is:
+**
+**    (1) Allocate the vtablog_vtab object and initialize all fields.
+**
+**    (2) Tell SQLite (via the sqlite3_declare_vtab() interface) what the
+**        result set of queries against vtablog will look like.
+*/
+static int vtablogConnectCreate(
+  sqlite3 *db,
+  void *pAux,
+  int argc, const char *const*argv,
+  sqlite3_vtab **ppVtab,
+  char **pzErr,
+  int isCreate
+){
+  vtablog_vtab *pNew;
+  int i;
+  int rc;
+  char *zSchema = 0;
+  char *zNRow = 0;
+
+  printf("%s.%s.%s():\n", argv[1], argv[2], 
+         isCreate ? "xCreate" : "xConnect");
+  printf("  argc=%d\n", argc);
+  for(i=0; i<argc; i++){
+    printf("  argv[%d] = ", i);
+    if( argv[i] ){
+      printf("[%s]\n", argv[i]);
+    }else{
+      printf("NULL\n");
+    }
+  }
+
+  for(i=3; i<argc; i++){
+    const char *z = argv[i];
+    if( vtablog_string_parameter(pzErr, "schema", z, &zSchema) ){
+      rc = SQLITE_ERROR;
+      goto vtablog_end_connect;
+    }
+    if( vtablog_string_parameter(pzErr, "rows", z, &zNRow) ){
+      rc = SQLITE_ERROR;
+      goto vtablog_end_connect;
+    }
+  }
+  if( zSchema==0 ){
+    zSchema = sqlite3_mprintf("%s","CREATE TABLE x(a,b);");
+  }
+  printf("  schema = '%s'\n", zSchema);
+  rc = sqlite3_declare_vtab(db, zSchema);
+  if( rc==SQLITE_OK ){
+    pNew = sqlite3_malloc( sizeof(*pNew) );
+    *ppVtab = (sqlite3_vtab*)pNew;
+    if( pNew==0 ) return SQLITE_NOMEM;
+    memset(pNew, 0, sizeof(*pNew));
+    pNew->nRow = 10;
+    if( zNRow ) pNew->nRow = atoi(zNRow);
+    printf("  nrow = %d\n", pNew->nRow);
+    pNew->zDb = sqlite3_mprintf("%s", argv[1]);
+    pNew->zName = sqlite3_mprintf("%s", argv[2]);
+  }
+
+vtablog_end_connect:
+  sqlite3_free(zSchema);
+  sqlite3_free(zNRow);
+  return rc;
+}
+static int vtablogCreate(
+  sqlite3 *db,
+  void *pAux,
+  int argc, const char *const*argv,
+  sqlite3_vtab **ppVtab,
+  char **pzErr
+){
+  return vtablogConnectCreate(db,pAux,argc,argv,ppVtab,pzErr,1);
+}
+static int vtablogConnect(
+  sqlite3 *db,
+  void *pAux,
+  int argc, const char *const*argv,
+  sqlite3_vtab **ppVtab,
+  char **pzErr
+){
+  return vtablogConnectCreate(db,pAux,argc,argv,ppVtab,pzErr,0);
+}
+
+
+/*
+** This method is the destructor for vtablog_cursor objects.
+*/
+static int vtablogDisconnect(sqlite3_vtab *pVtab){
+  vtablog_vtab *pTab = (vtablog_vtab*)pVtab;
+  printf("%s.%s.xDisconnect()\n", pTab->zDb, pTab->zName);
+  sqlite3_free(pTab->zDb);
+  sqlite3_free(pTab->zName);
+  sqlite3_free(pVtab);
+  return SQLITE_OK;
+}
+
+/*
+** This method is the destructor for vtablog_cursor objects.
+*/
+static int vtablogDestroy(sqlite3_vtab *pVtab){
+  vtablog_vtab *pTab = (vtablog_vtab*)pVtab;
+  printf("%s.%s.xDestroy()\n", pTab->zDb, pTab->zName);
+  sqlite3_free(pTab->zDb);
+  sqlite3_free(pTab->zName);
+  sqlite3_free(pVtab);
+  return SQLITE_OK;
+}
+
+/*
+** Constructor for a new vtablog_cursor object.
+*/
+static int vtablogOpen(sqlite3_vtab *p, sqlite3_vtab_cursor **ppCursor){
+  vtablog_vtab *pTab = (vtablog_vtab*)p;
+  vtablog_cursor *pCur;
+  printf("%s.%s.xOpen(cursor=%d)\n", pTab->zDb, pTab->zName,
+         ++pTab->nCursor);
+  pCur = sqlite3_malloc( sizeof(*pCur) );
+  if( pCur==0 ) return SQLITE_NOMEM;
+  memset(pCur, 0, sizeof(*pCur));
+  pCur->iCursor = pTab->nCursor;
+  *ppCursor = &pCur->base;
+  return SQLITE_OK;
+}
+
+/*
+** Destructor for a vtablog_cursor.
+*/
+static int vtablogClose(sqlite3_vtab_cursor *cur){
+  vtablog_cursor *pCur = (vtablog_cursor*)cur;
+  vtablog_vtab *pTab = (vtablog_vtab*)cur->pVtab;
+  printf("%s.%s.xClose(cursor=%d)\n", pTab->zDb, pTab->zName, pCur->iCursor);
+  sqlite3_free(cur);
+  return SQLITE_OK;
+}
+
+
+/*
+** Advance a vtablog_cursor to its next row of output.
+*/
+static int vtablogNext(sqlite3_vtab_cursor *cur){
+  vtablog_cursor *pCur = (vtablog_cursor*)cur;
+  vtablog_vtab *pTab = (vtablog_vtab*)cur->pVtab;
+  printf("%s.%s.xNext(cursor=%d)  rowid %d -> %d\n", 
+         pTab->zDb, pTab->zName, pCur->iCursor,
+         (int)pCur->iRowid, (int)pCur->iRowid+1);
+  pCur->iRowid++;
+  return SQLITE_OK;
+}
+
+/*
+** Return values of columns for the row at which the vtablog_cursor
+** is currently pointing.
+*/
+static int vtablogColumn(
+  sqlite3_vtab_cursor *cur,   /* The cursor */
+  sqlite3_context *ctx,       /* First argument to sqlite3_result_...() */
+  int i                       /* Which column to return */
+){
+  vtablog_cursor *pCur = (vtablog_cursor*)cur;
+  vtablog_vtab *pTab = (vtablog_vtab*)cur->pVtab;
+  char zVal[50];
+
+  if( i<26 ){
+    sqlite3_snprintf(sizeof(zVal),zVal,"%c%d", 
+                     "abcdefghijklmnopqrstuvwyz"[i], pCur->iRowid);
+  }else{
+    sqlite3_snprintf(sizeof(zVal),zVal,"{%d}%d", i, pCur->iRowid);
+  }
+  printf("%s.%s.xColumn(cursor=%d, i=%d): [%s]\n",
+         pTab->zDb, pTab->zName, pCur->iCursor, i, zVal);
+  sqlite3_result_text(ctx, zVal, -1, SQLITE_TRANSIENT);
+  return SQLITE_OK;
+}
+
+/*
+** Return the rowid for the current row.  In this implementation, the
+** rowid is the same as the output value.
+*/
+static int vtablogRowid(sqlite3_vtab_cursor *cur, sqlite_int64 *pRowid){
+  vtablog_cursor *pCur = (vtablog_cursor*)cur;
+  vtablog_vtab *pTab = (vtablog_vtab*)cur->pVtab;
+  printf("%s.%s.xRowid(cursor=%d): %d\n",
+         pTab->zDb, pTab->zName, pCur->iCursor, (int)pCur->iRowid);
+  *pRowid = pCur->iRowid;
+  return SQLITE_OK;
+}
+
+/*
+** Return TRUE if the cursor has been moved off of the last
+** row of output.
+*/
+static int vtablogEof(sqlite3_vtab_cursor *cur){
+  vtablog_cursor *pCur = (vtablog_cursor*)cur;
+  vtablog_vtab *pTab = (vtablog_vtab*)cur->pVtab;
+  int rc = pCur->iRowid >= pTab->nRow;
+  printf("%s.%s.xEof(cursor=%d): %d\n",
+         pTab->zDb, pTab->zName, pCur->iCursor, rc);
+  return rc;
+}
+
+/*
+** Output an sqlite3_value object's value as an SQL literal.
+*/
+static void vtablogQuote(sqlite3_value *p){
+  char z[50];
+  switch( sqlite3_value_type(p) ){
+    case SQLITE_NULL: {
+      printf("NULL");
+      break;
+    }
+    case SQLITE_INTEGER: {
+      sqlite3_snprintf(50,z,"%lld", sqlite3_value_int64(p));
+      printf("%s", z);
+      break;
+    }
+    case SQLITE_FLOAT: {
+      sqlite3_snprintf(50,z,"%!.20g", sqlite3_value_double(p));
+      printf("%s", z);
+      break;
+    }
+    case SQLITE_BLOB: {
+      int n = sqlite3_value_bytes(p);
+      const unsigned char *z = (const unsigned char*)sqlite3_value_blob(p);
+      int i;
+      printf("x'");
+      for(i=0; i<n; i++) printf("%02x", z[i]);
+      printf("'");
+      break;
+    }
+    case SQLITE_TEXT: {
+      const char *z = (const char*)sqlite3_value_text(p);
+      int i;
+      char c;
+      for(i=0; (c = z[i])!=0 && c!='\''; i++){}
+      if( c==0 ){
+        printf("'%s'",z);
+      }else{
+        printf("'");
+        while( *z ){
+          for(i=0; (c = z[i])!=0 && c!='\''; i++){}
+          if( c=='\'' ) i++;
+          if( i ){
+            printf("%.*s", i, z);
+            z += i;
+          }
+          if( c=='\'' ){
+            printf("'");
+            continue;
+          }
+          if( c==0 ){
+            break;
+          }
+          z++;
+        }
+        printf("'");
+      }
+      break;
+    }
+  }
+}
+
+
+/*
+** This method is called to "rewind" the vtablog_cursor object back
+** to the first row of output.  This method is always called at least
+** once prior to any call to vtablogColumn() or vtablogRowid() or 
+** vtablogEof().
+*/
+static int vtablogFilter(
+  sqlite3_vtab_cursor *cur,
+  int idxNum, const char *idxStr,
+  int argc, sqlite3_value **argv
+){
+  vtablog_cursor *pCur = (vtablog_cursor *)cur;
+  vtablog_vtab *pTab = (vtablog_vtab*)cur->pVtab;
+  printf("%s.%s.xFilter(cursor=%d):\n", pTab->zDb, pTab->zName, pCur->iCursor);
+  pCur->iRowid = 0;
+  return SQLITE_OK;
+}
+
+/*
+** SQLite will invoke this method one or more times while planning a query
+** that uses the vtablog virtual table.  This routine needs to create
+** a query plan for each invocation and compute an estimated cost for that
+** plan.
+*/
+static int vtablogBestIndex(
+  sqlite3_vtab *tab,
+  sqlite3_index_info *p
+){
+  vtablog_vtab *pTab = (vtablog_vtab*)tab;
+  int i;
+  printf("%s.%s.xBestIndex():\n", pTab->zDb, pTab->zName);
+  printf("  colUsed: 0x%016llx\n", p->colUsed);
+  printf("  nConstraint: %d\n", p->nConstraint);
+  for(i=0; i<p->nConstraint; i++){
+    printf(
+       "  constraint[%d]: col=%d termid=%d op=%d usabled=%d collseq=%s\n",
+       i,
+       p->aConstraint[i].iColumn,
+       p->aConstraint[i].iTermOffset,
+       p->aConstraint[i].op,
+       p->aConstraint[i].usable,
+       sqlite3_vtab_collation(p,i));
+  }
+  printf("  nOrderBy: %d\n", p->nOrderBy);
+  for(i=0; i<p->nOrderBy; i++){
+    printf("  orderby[%d]: col=%d desc=%d\n",
+       i,
+       p->aOrderBy[i].iColumn,
+       p->aOrderBy[i].desc);
+  }
+  p->estimatedCost = (double)500;
+  p->estimatedRows = 500;
+  printf("  idxNum=%d\n", p->idxNum);
+  printf("  idxStr=NULL\n");
+  printf("  orderByConsumed=%d\n", p->orderByConsumed);
+  printf("  estimatedCost=%g\n", p->estimatedCost);
+  printf("  estimatedRows=%lld\n", p->estimatedRows);
+  return SQLITE_OK;
+}
+
+/*
+** SQLite invokes this method to INSERT, UPDATE, or DELETE content from
+** the table. 
+**
+** This implementation does not actually make any changes to the table
+** content.  It merely logs the fact that the method was invoked
+*/
+static int vtablogUpdate(
+  sqlite3_vtab *tab,
+  int argc,
+  sqlite3_value **argv,
+  sqlite_int64 *pRowid
+){
+  vtablog_vtab *pTab = (vtablog_vtab*)tab;
+  int i;
+  printf("%s.%s.xUpdate():\n", pTab->zDb, pTab->zName);
+  printf("  argc=%d\n", argc);
+  for(i=0; i<argc; i++){
+    printf("  argv[%d]=", i);
+    vtablogQuote(argv[i]);
+    printf("\n");
+  }
+  return SQLITE_OK;
+}
+
+static int vtablogBegin(sqlite3_vtab *tab){
+  vtablog_vtab *pTab = (vtablog_vtab*)tab;
+  printf("%s.%s.xBegin()\n", pTab->zDb, pTab->zName);
+  return SQLITE_OK;
+}
+static int vtablogSync(sqlite3_vtab *tab){
+  vtablog_vtab *pTab = (vtablog_vtab*)tab;
+  printf("%s.%s.xSync()\n", pTab->zDb, pTab->zName);
+  return SQLITE_OK;
+}
+static int vtablogCommit(sqlite3_vtab *tab){
+  vtablog_vtab *pTab = (vtablog_vtab*)tab;
+  printf("%s.%s.xCommit()\n", pTab->zDb, pTab->zName);
+  return SQLITE_OK;
+}
+static int vtablogRollback(sqlite3_vtab *tab){
+  vtablog_vtab *pTab = (vtablog_vtab*)tab;
+  printf("%s.%s.xRollback()\n", pTab->zDb, pTab->zName);
+  return SQLITE_OK;
+}
+static int vtablogSavepoint(sqlite3_vtab *tab, int N){
+  vtablog_vtab *pTab = (vtablog_vtab*)tab;
+  printf("%s.%s.xSavepoint(%d)\n", pTab->zDb, pTab->zName, N);
+  return SQLITE_OK;
+}
+static int vtablogRelease(sqlite3_vtab *tab, int N){
+  vtablog_vtab *pTab = (vtablog_vtab*)tab;
+  printf("%s.%s.xRelease(%d)\n", pTab->zDb, pTab->zName, N);
+  return SQLITE_OK;
+}
+static int vtablogRollbackTo(sqlite3_vtab *tab, int N){
+  vtablog_vtab *pTab = (vtablog_vtab*)tab;
+  printf("%s.%s.xRollbackTo(%d)\n", pTab->zDb, pTab->zName, N);
+  return SQLITE_OK;
+}
+
+static int vtablogFindMethod(
+  sqlite3_vtab *tab,
+  int nArg,
+  const char *zName,
+  void (**pxFunc)(sqlite3_context*,int,sqlite3_value**),
+  void **ppArg
+){
+  vtablog_vtab *pTab = (vtablog_vtab*)tab;
+  printf("%s.%s.xFindMethod(nArg=%d, zName=%s)\n",
+         pTab->zDb, pTab->zName, nArg, zName);
+  return SQLITE_OK;
+}
+static int vtablogRename(sqlite3_vtab *tab, const char *zNew){
+  vtablog_vtab *pTab = (vtablog_vtab*)tab;
+  printf("%s.%s.xRename('%s')\n", pTab->zDb, pTab->zName, zNew);
+  sqlite3_free(pTab->zName);
+  pTab->zName = sqlite3_mprintf("%s", zNew);
+  return SQLITE_OK;
+}
+
+/* Any table name that contains the text "shadow" is seen as a
+** shadow table.  Nothing else is.
+*/
+static int vtablogShadowName(const char *zName){
+  printf("vtablog.xShadowName('%s')\n", zName);
+  return sqlite3_strglob("*shadow*", zName)==0;
+}
+
+static int vtablogIntegrity(
+  sqlite3_vtab *tab,
+  const char *zSchema,
+  const char *zTabName,
+  int mFlags,
+  char **pzErr
+){
+  vtablog_vtab *pTab = (vtablog_vtab*)tab;
+  printf("%s.%s.xIntegrity(mFlags=0x%x)\n", pTab->zDb, pTab->zName, mFlags);
+  return 0;
+}
+
+/*
+** This following structure defines all the methods for the 
+** vtablog virtual table.
+*/
+static sqlite3_module vtablogModule = {
+  4,                         /* iVersion */
+  vtablogCreate,             /* xCreate */
+  vtablogConnect,            /* xConnect */
+  vtablogBestIndex,          /* xBestIndex */
+  vtablogDisconnect,         /* xDisconnect */
+  vtablogDestroy,            /* xDestroy */
+  vtablogOpen,               /* xOpen - open a cursor */
+  vtablogClose,              /* xClose - close a cursor */
+  vtablogFilter,             /* xFilter - configure scan constraints */
+  vtablogNext,               /* xNext - advance a cursor */
+  vtablogEof,                /* xEof - check for end of scan */
+  vtablogColumn,             /* xColumn - read data */
+  vtablogRowid,              /* xRowid - read data */
+  vtablogUpdate,             /* xUpdate */
+  vtablogBegin,              /* xBegin */
+  vtablogSync,               /* xSync */
+  vtablogCommit,             /* xCommit */
+  vtablogRollback,           /* xRollback */
+  vtablogFindMethod,         /* xFindMethod */
+  vtablogRename,             /* xRename */
+  vtablogSavepoint,          /* xSavepoint */
+  vtablogRelease,            /* xRelease */
+  vtablogRollbackTo,         /* xRollbackTo */
+  vtablogShadowName,         /* xShadowName */
+  vtablogIntegrity           /* xIntegrity */
+};
+
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_vtablog_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  int rc;
+  SQLITE_EXTENSION_INIT2(pApi);
+  rc = sqlite3_create_module(db, "vtablog", &vtablogModule, 0);
+  return rc;
+}
diff --git a/ext/misc/vtshim.c b/ext/misc/vtshim.c
new file mode 100644
index 0000000000000000000000000000000000000000..0709a26a7f16a6969dddbd4a28eb4670eedea316
--- /dev/null
+++ b/ext/misc/vtshim.c
@@ -0,0 +1,553 @@
+/*
+** 2013-06-12
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** A shim that sits between the SQLite virtual table interface and
+** runtimes with garbage collector based memory management.
+*/
+#include "sqlite3ext.h"
+SQLITE_EXTENSION_INIT1
+#include <assert.h>
+#include <string.h>
+
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+
+/* Forward references */
+typedef struct vtshim_aux vtshim_aux;
+typedef struct vtshim_vtab vtshim_vtab;
+typedef struct vtshim_cursor vtshim_cursor;
+
+
+/* The vtshim_aux argument is the auxiliary parameter that is passed
+** into sqlite3_create_module_v2().
+*/
+struct vtshim_aux {
+  void *pChildAux;              /* pAux for child virtual tables */
+  void (*xChildDestroy)(void*); /* Destructor for pChildAux */
+  sqlite3_module *pMod;         /* Methods for child virtual tables */
+  sqlite3 *db;                  /* The database to which we are attached */
+  char *zName;                  /* Name of the module */
+  int bDisposed;                /* True if disposed */
+  vtshim_vtab *pAllVtab;        /* List of all vtshim_vtab objects */
+  sqlite3_module sSelf;         /* Methods used by this shim */
+};
+
+/* A vtshim virtual table object */
+struct vtshim_vtab {
+  sqlite3_vtab base;       /* Base class - must be first */
+  sqlite3_vtab *pChild;    /* Child virtual table */
+  vtshim_aux *pAux;        /* Pointer to vtshim_aux object */
+  vtshim_cursor *pAllCur;  /* List of all cursors */
+  vtshim_vtab **ppPrev;    /* Previous on list */
+  vtshim_vtab *pNext;      /* Next on list */
+};
+
+/* A vtshim cursor object */
+struct vtshim_cursor {
+  sqlite3_vtab_cursor base;    /* Base class - must be first */
+  sqlite3_vtab_cursor *pChild; /* Cursor generated by the managed subclass */
+  vtshim_cursor **ppPrev;      /* Previous on list of all cursors */
+  vtshim_cursor *pNext;        /* Next on list of all cursors */
+};
+
+/* Macro used to copy the child vtable error message to outer vtable */
+#define VTSHIM_COPY_ERRMSG()                                             \
+  do {                                                                   \
+    sqlite3_free(pVtab->base.zErrMsg);                                   \
+    pVtab->base.zErrMsg = sqlite3_mprintf("%s", pVtab->pChild->zErrMsg); \
+  } while (0)
+
+/* Methods for the vtshim module */
+static int vtshimCreate(
+  sqlite3 *db,
+  void *ppAux,
+  int argc,
+  const char *const*argv,
+  sqlite3_vtab **ppVtab,
+  char **pzErr
+){
+  vtshim_aux *pAux = (vtshim_aux*)ppAux;
+  vtshim_vtab *pNew;
+  int rc;
+
+  assert( db==pAux->db );
+  if( pAux->bDisposed ){
+    if( pzErr ){
+      *pzErr = sqlite3_mprintf("virtual table was disposed: \"%s\"",
+                               pAux->zName);
+    }
+    return SQLITE_ERROR;
+  }
+  pNew = sqlite3_malloc( sizeof(*pNew) );
+  *ppVtab = (sqlite3_vtab*)pNew;
+  if( pNew==0 ) return SQLITE_NOMEM;
+  memset(pNew, 0, sizeof(*pNew));
+  rc = pAux->pMod->xCreate(db, pAux->pChildAux, argc, argv,
+                           &pNew->pChild, pzErr);
+  if( rc ){
+    sqlite3_free(pNew);
+    *ppVtab = 0;
+    return rc;
+  }
+  pNew->pAux = pAux;
+  pNew->ppPrev = &pAux->pAllVtab;
+  pNew->pNext = pAux->pAllVtab;
+  if( pAux->pAllVtab ) pAux->pAllVtab->ppPrev = &pNew->pNext;
+  pAux->pAllVtab = pNew;
+  return rc;
+}
+
+static int vtshimConnect(
+  sqlite3 *db,
+  void *ppAux,
+  int argc,
+  const char *const*argv,
+  sqlite3_vtab **ppVtab,
+  char **pzErr
+){
+  vtshim_aux *pAux = (vtshim_aux*)ppAux;
+  vtshim_vtab *pNew;
+  int rc;
+
+  assert( db==pAux->db );
+  if( pAux->bDisposed ){
+    if( pzErr ){
+      *pzErr = sqlite3_mprintf("virtual table was disposed: \"%s\"",
+                               pAux->zName);
+    }
+    return SQLITE_ERROR;
+  }
+  pNew = sqlite3_malloc( sizeof(*pNew) );
+  *ppVtab = (sqlite3_vtab*)pNew;
+  if( pNew==0 ) return SQLITE_NOMEM;
+  memset(pNew, 0, sizeof(*pNew));
+  rc = pAux->pMod->xConnect(db, pAux->pChildAux, argc, argv,
+                            &pNew->pChild, pzErr);
+  if( rc ){
+    sqlite3_free(pNew);
+    *ppVtab = 0;
+    return rc;
+  }
+  pNew->pAux = pAux;
+  pNew->ppPrev = &pAux->pAllVtab;
+  pNew->pNext = pAux->pAllVtab;
+  if( pAux->pAllVtab ) pAux->pAllVtab->ppPrev = &pNew->pNext;
+  pAux->pAllVtab = pNew;
+  return rc;
+}
+
+static int vtshimBestIndex(
+  sqlite3_vtab *pBase,
+  sqlite3_index_info *pIdxInfo
+){
+  vtshim_vtab *pVtab = (vtshim_vtab*)pBase;
+  vtshim_aux *pAux = pVtab->pAux;
+  int rc;
+  if( pAux->bDisposed ) return SQLITE_ERROR;
+  rc = pAux->pMod->xBestIndex(pVtab->pChild, pIdxInfo);
+  if( rc!=SQLITE_OK ){
+    VTSHIM_COPY_ERRMSG();
+  }
+  return rc;
+}
+
+static int vtshimDisconnect(sqlite3_vtab *pBase){
+  vtshim_vtab *pVtab = (vtshim_vtab*)pBase;
+  vtshim_aux *pAux = pVtab->pAux;
+  int rc = SQLITE_OK;
+  if( !pAux->bDisposed ){
+    rc = pAux->pMod->xDisconnect(pVtab->pChild);
+  }
+  if( pVtab->pNext ) pVtab->pNext->ppPrev = pVtab->ppPrev;
+  *pVtab->ppPrev = pVtab->pNext;
+  sqlite3_free(pVtab);
+  return rc;
+}
+
+static int vtshimDestroy(sqlite3_vtab *pBase){
+  vtshim_vtab *pVtab = (vtshim_vtab*)pBase;
+  vtshim_aux *pAux = pVtab->pAux;
+  int rc = SQLITE_OK;
+  if( !pAux->bDisposed ){
+    rc = pAux->pMod->xDestroy(pVtab->pChild);
+  }
+  if( pVtab->pNext ) pVtab->pNext->ppPrev = pVtab->ppPrev;
+  *pVtab->ppPrev = pVtab->pNext;
+  sqlite3_free(pVtab);
+  return rc;
+}
+
+static int vtshimOpen(sqlite3_vtab *pBase, sqlite3_vtab_cursor **ppCursor){
+  vtshim_vtab *pVtab = (vtshim_vtab*)pBase;
+  vtshim_aux *pAux = pVtab->pAux;
+  vtshim_cursor *pCur;
+  int rc;
+  *ppCursor = 0;
+  if( pAux->bDisposed ) return SQLITE_ERROR;
+  pCur = sqlite3_malloc( sizeof(*pCur) );
+  if( pCur==0 ) return SQLITE_NOMEM;
+  memset(pCur, 0, sizeof(*pCur));
+  rc = pAux->pMod->xOpen(pVtab->pChild, &pCur->pChild);
+  if( rc ){
+    sqlite3_free(pCur);
+    VTSHIM_COPY_ERRMSG();
+    return rc;
+  }
+  pCur->pChild->pVtab = pVtab->pChild;
+  *ppCursor = &pCur->base;
+  pCur->ppPrev = &pVtab->pAllCur;
+  if( pVtab->pAllCur ) pVtab->pAllCur->ppPrev = &pCur->pNext;
+  pCur->pNext = pVtab->pAllCur;
+  pVtab->pAllCur = pCur;
+  return SQLITE_OK;
+}
+
+static int vtshimClose(sqlite3_vtab_cursor *pX){
+  vtshim_cursor *pCur = (vtshim_cursor*)pX;
+  vtshim_vtab *pVtab = (vtshim_vtab*)pCur->base.pVtab;
+  vtshim_aux *pAux = pVtab->pAux;
+  int rc = SQLITE_OK;
+  if( !pAux->bDisposed ){
+    rc = pAux->pMod->xClose(pCur->pChild);
+    if( rc!=SQLITE_OK ){
+      VTSHIM_COPY_ERRMSG();
+    }
+  }
+  if( pCur->pNext ) pCur->pNext->ppPrev = pCur->ppPrev;
+  *pCur->ppPrev = pCur->pNext;
+  sqlite3_free(pCur);
+  return rc;
+}
+
+static int vtshimFilter(
+  sqlite3_vtab_cursor *pX,
+  int idxNum,
+  const char *idxStr,
+  int argc,
+  sqlite3_value **argv
+){
+  vtshim_cursor *pCur = (vtshim_cursor*)pX;
+  vtshim_vtab *pVtab = (vtshim_vtab*)pCur->base.pVtab;
+  vtshim_aux *pAux = pVtab->pAux;
+  int rc;
+  if( pAux->bDisposed ) return SQLITE_ERROR;
+  rc = pAux->pMod->xFilter(pCur->pChild, idxNum, idxStr, argc, argv);
+  if( rc!=SQLITE_OK ){
+    VTSHIM_COPY_ERRMSG();
+  }
+  return rc;
+}
+
+static int vtshimNext(sqlite3_vtab_cursor *pX){
+  vtshim_cursor *pCur = (vtshim_cursor*)pX;
+  vtshim_vtab *pVtab = (vtshim_vtab*)pCur->base.pVtab;
+  vtshim_aux *pAux = pVtab->pAux;
+  int rc;
+  if( pAux->bDisposed ) return SQLITE_ERROR;
+  rc = pAux->pMod->xNext(pCur->pChild);
+  if( rc!=SQLITE_OK ){
+    VTSHIM_COPY_ERRMSG();
+  }
+  return rc;
+}
+
+static int vtshimEof(sqlite3_vtab_cursor *pX){
+  vtshim_cursor *pCur = (vtshim_cursor*)pX;
+  vtshim_vtab *pVtab = (vtshim_vtab*)pCur->base.pVtab;
+  vtshim_aux *pAux = pVtab->pAux;
+  int rc;
+  if( pAux->bDisposed ) return 1;
+  rc = pAux->pMod->xEof(pCur->pChild);
+  VTSHIM_COPY_ERRMSG();
+  return rc;
+}
+
+static int vtshimColumn(sqlite3_vtab_cursor *pX, sqlite3_context *ctx, int i){
+  vtshim_cursor *pCur = (vtshim_cursor*)pX;
+  vtshim_vtab *pVtab = (vtshim_vtab*)pCur->base.pVtab;
+  vtshim_aux *pAux = pVtab->pAux;
+  int rc;
+  if( pAux->bDisposed ) return SQLITE_ERROR;
+  rc = pAux->pMod->xColumn(pCur->pChild, ctx, i);
+  if( rc!=SQLITE_OK ){
+    VTSHIM_COPY_ERRMSG();
+  }
+  return rc;
+}
+
+static int vtshimRowid(sqlite3_vtab_cursor *pX, sqlite3_int64 *pRowid){
+  vtshim_cursor *pCur = (vtshim_cursor*)pX;
+  vtshim_vtab *pVtab = (vtshim_vtab*)pCur->base.pVtab;
+  vtshim_aux *pAux = pVtab->pAux;
+  int rc;
+  if( pAux->bDisposed ) return SQLITE_ERROR;
+  rc = pAux->pMod->xRowid(pCur->pChild, pRowid);
+  if( rc!=SQLITE_OK ){
+    VTSHIM_COPY_ERRMSG();
+  }
+  return rc;
+}
+
+static int vtshimUpdate(
+  sqlite3_vtab *pBase,
+  int argc,
+  sqlite3_value **argv,
+  sqlite3_int64 *pRowid
+){
+  vtshim_vtab *pVtab = (vtshim_vtab*)pBase;
+  vtshim_aux *pAux = pVtab->pAux;
+  int rc;
+  if( pAux->bDisposed ) return SQLITE_ERROR;
+  rc = pAux->pMod->xUpdate(pVtab->pChild, argc, argv, pRowid);
+  if( rc!=SQLITE_OK ){
+    VTSHIM_COPY_ERRMSG();
+  }
+  return rc;
+}
+
+static int vtshimBegin(sqlite3_vtab *pBase){
+  vtshim_vtab *pVtab = (vtshim_vtab*)pBase;
+  vtshim_aux *pAux = pVtab->pAux;
+  int rc;
+  if( pAux->bDisposed ) return SQLITE_ERROR;
+  rc = pAux->pMod->xBegin(pVtab->pChild);
+  if( rc!=SQLITE_OK ){
+    VTSHIM_COPY_ERRMSG();
+  }
+  return rc;
+}
+
+static int vtshimSync(sqlite3_vtab *pBase){
+  vtshim_vtab *pVtab = (vtshim_vtab*)pBase;
+  vtshim_aux *pAux = pVtab->pAux;
+  int rc;
+  if( pAux->bDisposed ) return SQLITE_ERROR;
+  rc = pAux->pMod->xSync(pVtab->pChild);
+  if( rc!=SQLITE_OK ){
+    VTSHIM_COPY_ERRMSG();
+  }
+  return rc;
+}
+
+static int vtshimCommit(sqlite3_vtab *pBase){
+  vtshim_vtab *pVtab = (vtshim_vtab*)pBase;
+  vtshim_aux *pAux = pVtab->pAux;
+  int rc;
+  if( pAux->bDisposed ) return SQLITE_ERROR;
+  rc = pAux->pMod->xCommit(pVtab->pChild);
+  if( rc!=SQLITE_OK ){
+    VTSHIM_COPY_ERRMSG();
+  }
+  return rc;
+}
+
+static int vtshimRollback(sqlite3_vtab *pBase){
+  vtshim_vtab *pVtab = (vtshim_vtab*)pBase;
+  vtshim_aux *pAux = pVtab->pAux;
+  int rc;
+  if( pAux->bDisposed ) return SQLITE_ERROR;
+  rc = pAux->pMod->xRollback(pVtab->pChild);
+  if( rc!=SQLITE_OK ){
+    VTSHIM_COPY_ERRMSG();
+  }
+  return rc;
+}
+
+static int vtshimFindFunction(
+  sqlite3_vtab *pBase,
+  int nArg,
+  const char *zName,
+  void (**pxFunc)(sqlite3_context*,int,sqlite3_value**),
+  void **ppArg
+){
+  vtshim_vtab *pVtab = (vtshim_vtab*)pBase;
+  vtshim_aux *pAux = pVtab->pAux;
+  int rc;
+  if( pAux->bDisposed ) return 0;
+  rc = pAux->pMod->xFindFunction(pVtab->pChild, nArg, zName, pxFunc, ppArg);
+  VTSHIM_COPY_ERRMSG();
+  return rc;
+}
+
+static int vtshimRename(sqlite3_vtab *pBase, const char *zNewName){
+  vtshim_vtab *pVtab = (vtshim_vtab*)pBase;
+  vtshim_aux *pAux = pVtab->pAux;
+  int rc;
+  if( pAux->bDisposed ) return SQLITE_ERROR;
+  rc = pAux->pMod->xRename(pVtab->pChild, zNewName);
+  if( rc!=SQLITE_OK ){
+    VTSHIM_COPY_ERRMSG();
+  }
+  return rc;
+}
+
+static int vtshimSavepoint(sqlite3_vtab *pBase, int n){
+  vtshim_vtab *pVtab = (vtshim_vtab*)pBase;
+  vtshim_aux *pAux = pVtab->pAux;
+  int rc;
+  if( pAux->bDisposed ) return SQLITE_ERROR;
+  rc = pAux->pMod->xSavepoint(pVtab->pChild, n);
+  if( rc!=SQLITE_OK ){
+    VTSHIM_COPY_ERRMSG();
+  }
+  return rc;
+}
+
+static int vtshimRelease(sqlite3_vtab *pBase, int n){
+  vtshim_vtab *pVtab = (vtshim_vtab*)pBase;
+  vtshim_aux *pAux = pVtab->pAux;
+  int rc;
+  if( pAux->bDisposed ) return SQLITE_ERROR;
+  rc = pAux->pMod->xRelease(pVtab->pChild, n);
+  if( rc!=SQLITE_OK ){
+    VTSHIM_COPY_ERRMSG();
+  }
+  return rc;
+}
+
+static int vtshimRollbackTo(sqlite3_vtab *pBase, int n){
+  vtshim_vtab *pVtab = (vtshim_vtab*)pBase;
+  vtshim_aux *pAux = pVtab->pAux;
+  int rc;
+  if( pAux->bDisposed ) return SQLITE_ERROR;
+  rc = pAux->pMod->xRollbackTo(pVtab->pChild, n);
+  if( rc!=SQLITE_OK ){
+    VTSHIM_COPY_ERRMSG();
+  }
+  return rc;
+}
+
+/* The destructor function for a disposible module */
+static void vtshimAuxDestructor(void *pXAux){
+  vtshim_aux *pAux = (vtshim_aux*)pXAux;
+  assert( pAux->pAllVtab==0 );
+  if( !pAux->bDisposed && pAux->xChildDestroy ){
+    pAux->xChildDestroy(pAux->pChildAux);
+    pAux->xChildDestroy = 0;
+  }
+  sqlite3_free(pAux->zName);
+  sqlite3_free(pAux->pMod);
+  sqlite3_free(pAux);
+}
+
+static int vtshimCopyModule(
+  const sqlite3_module *pMod,   /* Source module to be copied */
+  sqlite3_module **ppMod        /* Destination for copied module */
+){
+  sqlite3_module *p;
+  if( !pMod || !ppMod ) return SQLITE_ERROR;
+  p = sqlite3_malloc( sizeof(*p) );
+  if( p==0 ) return SQLITE_NOMEM;
+  memcpy(p, pMod, sizeof(*p));
+  *ppMod = p;
+  return SQLITE_OK;
+}
+
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+void *sqlite3_create_disposable_module(
+  sqlite3 *db,               /* SQLite connection to register module with */
+  const char *zName,         /* Name of the module */
+  const sqlite3_module *p,   /* Methods for the module */
+  void *pClientData,         /* Client data for xCreate/xConnect */
+  void(*xDestroy)(void*)     /* Module destructor function */
+){
+  vtshim_aux *pAux;
+  sqlite3_module *pMod;
+  int rc;
+  pAux = sqlite3_malloc( sizeof(*pAux) );
+  if( pAux==0 ){
+    if( xDestroy ) xDestroy(pClientData);
+    return 0;
+  }
+  rc = vtshimCopyModule(p, &pMod);
+  if( rc!=SQLITE_OK ){
+    sqlite3_free(pAux);
+    return 0;
+  }
+  pAux->pChildAux = pClientData;
+  pAux->xChildDestroy = xDestroy;
+  pAux->pMod = pMod;
+  pAux->db = db;
+  pAux->zName = sqlite3_mprintf("%s", zName);
+  pAux->bDisposed = 0;
+  pAux->pAllVtab = 0;
+  pAux->sSelf.iVersion = p->iVersion<=2 ? p->iVersion : 2;
+  pAux->sSelf.xCreate = p->xCreate ? vtshimCreate : 0;
+  pAux->sSelf.xConnect = p->xConnect ? vtshimConnect : 0;
+  pAux->sSelf.xBestIndex = p->xBestIndex ? vtshimBestIndex : 0;
+  pAux->sSelf.xDisconnect = p->xDisconnect ? vtshimDisconnect : 0;
+  pAux->sSelf.xDestroy = p->xDestroy ? vtshimDestroy : 0;
+  pAux->sSelf.xOpen = p->xOpen ? vtshimOpen : 0;
+  pAux->sSelf.xClose = p->xClose ? vtshimClose : 0;
+  pAux->sSelf.xFilter = p->xFilter ? vtshimFilter : 0;
+  pAux->sSelf.xNext = p->xNext ? vtshimNext : 0;
+  pAux->sSelf.xEof = p->xEof ? vtshimEof : 0;
+  pAux->sSelf.xColumn = p->xColumn ? vtshimColumn : 0;
+  pAux->sSelf.xRowid = p->xRowid ? vtshimRowid : 0;
+  pAux->sSelf.xUpdate = p->xUpdate ? vtshimUpdate : 0;
+  pAux->sSelf.xBegin = p->xBegin ? vtshimBegin : 0;
+  pAux->sSelf.xSync = p->xSync ? vtshimSync : 0;
+  pAux->sSelf.xCommit = p->xCommit ? vtshimCommit : 0;
+  pAux->sSelf.xRollback = p->xRollback ? vtshimRollback : 0;
+  pAux->sSelf.xFindFunction = p->xFindFunction ? vtshimFindFunction : 0;
+  pAux->sSelf.xRename = p->xRename ? vtshimRename : 0;
+  if( p->iVersion>=2 ){
+    pAux->sSelf.xSavepoint = p->xSavepoint ? vtshimSavepoint : 0;
+    pAux->sSelf.xRelease = p->xRelease ? vtshimRelease : 0;
+    pAux->sSelf.xRollbackTo = p->xRollbackTo ? vtshimRollbackTo : 0;
+  }else{
+    pAux->sSelf.xSavepoint = 0;
+    pAux->sSelf.xRelease = 0;
+    pAux->sSelf.xRollbackTo = 0;
+  }
+  rc = sqlite3_create_module_v2(db, zName, &pAux->sSelf,
+                                pAux, vtshimAuxDestructor);
+  return rc==SQLITE_OK ? (void*)pAux : 0;
+}
+
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+void sqlite3_dispose_module(void *pX){
+  vtshim_aux *pAux = (vtshim_aux*)pX;
+  if( !pAux->bDisposed ){
+    vtshim_vtab *pVtab;
+    vtshim_cursor *pCur;
+    for(pVtab=pAux->pAllVtab; pVtab; pVtab=pVtab->pNext){
+      for(pCur=pVtab->pAllCur; pCur; pCur=pCur->pNext){
+        pAux->pMod->xClose(pCur->pChild);
+      }
+      pAux->pMod->xDisconnect(pVtab->pChild);
+    }
+    pAux->bDisposed = 1;
+    if( pAux->xChildDestroy ){
+      pAux->xChildDestroy(pAux->pChildAux);
+      pAux->xChildDestroy = 0;
+    }
+  }
+}
+
+
+#endif /* SQLITE_OMIT_VIRTUALTABLE */
+
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_vtshim_init(
+  sqlite3 *db,
+  char **pzErrMsg,
+  const sqlite3_api_routines *pApi
+){
+  SQLITE_EXTENSION_INIT2(pApi);
+  return SQLITE_OK;
+}
diff --git a/ext/misc/wholenumber.c b/ext/misc/wholenumber.c
new file mode 100644
index 0000000000000000000000000000000000000000..4c955925da4a23a8f0a1fb76c62a44ffe6eecf15
--- /dev/null
+++ b/ext/misc/wholenumber.c
@@ -0,0 +1,280 @@
+/*
+** 2011 April 02
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** This file implements a virtual table that returns the whole numbers
+** between 1 and 4294967295, inclusive.
+**
+** Example:
+**
+**     CREATE VIRTUAL TABLE nums USING wholenumber;
+**     SELECT value FROM nums WHERE value<10;
+**
+** Results in:
+**
+**     1 2 3 4 5 6 7 8 9
+*/
+#include "sqlite3ext.h"
+SQLITE_EXTENSION_INIT1
+#include <assert.h>
+#include <string.h>
+
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+
+
+/* A wholenumber cursor object */
+typedef struct wholenumber_cursor wholenumber_cursor;
+struct wholenumber_cursor {
+  sqlite3_vtab_cursor base;  /* Base class - must be first */
+  sqlite3_int64 iValue;      /* Current value */
+  sqlite3_int64 mxValue;     /* Maximum value */
+};
+
+/* Methods for the wholenumber module */
+static int wholenumberConnect(
+  sqlite3 *db,
+  void *pAux,
+  int argc, const char *const*argv,
+  sqlite3_vtab **ppVtab,
+  char **pzErr
+){
+  sqlite3_vtab *pNew;
+  pNew = *ppVtab = sqlite3_malloc( sizeof(*pNew) );
+  if( pNew==0 ) return SQLITE_NOMEM;
+  sqlite3_declare_vtab(db, "CREATE TABLE x(value)");
+  sqlite3_vtab_config(db, SQLITE_VTAB_INNOCUOUS);
+  memset(pNew, 0, sizeof(*pNew));
+  return SQLITE_OK;
+}
+/* Note that for this virtual table, the xCreate and xConnect
+** methods are identical. */
+
+static int wholenumberDisconnect(sqlite3_vtab *pVtab){
+  sqlite3_free(pVtab);
+  return SQLITE_OK;
+}
+/* The xDisconnect and xDestroy methods are also the same */
+
+
+/*
+** Open a new wholenumber cursor.
+*/
+static int wholenumberOpen(sqlite3_vtab *p, sqlite3_vtab_cursor **ppCursor){
+  wholenumber_cursor *pCur;
+  pCur = sqlite3_malloc( sizeof(*pCur) );
+  if( pCur==0 ) return SQLITE_NOMEM;
+  memset(pCur, 0, sizeof(*pCur));
+  *ppCursor = &pCur->base;
+  return SQLITE_OK;
+}
+
+/*
+** Close a wholenumber cursor.
+*/
+static int wholenumberClose(sqlite3_vtab_cursor *cur){
+  sqlite3_free(cur);
+  return SQLITE_OK;
+}
+
+
+/*
+** Advance a cursor to its next row of output
+*/
+static int wholenumberNext(sqlite3_vtab_cursor *cur){
+  wholenumber_cursor *pCur = (wholenumber_cursor*)cur;
+  pCur->iValue++;
+  return SQLITE_OK;
+}
+
+/*
+** Return the value associated with a wholenumber.
+*/
+static int wholenumberColumn(
+  sqlite3_vtab_cursor *cur,
+  sqlite3_context *ctx,
+  int i
+){
+  wholenumber_cursor *pCur = (wholenumber_cursor*)cur;
+  sqlite3_result_int64(ctx, pCur->iValue);
+  return SQLITE_OK;
+}
+
+/*
+** The rowid.
+*/
+static int wholenumberRowid(sqlite3_vtab_cursor *cur, sqlite_int64 *pRowid){
+  wholenumber_cursor *pCur = (wholenumber_cursor*)cur;
+  *pRowid = pCur->iValue;
+  return SQLITE_OK;
+}
+
+/*
+** When the wholenumber_cursor.rLimit value is 0 or less, that is a signal
+** that the cursor has nothing more to output.
+*/
+static int wholenumberEof(sqlite3_vtab_cursor *cur){
+  wholenumber_cursor *pCur = (wholenumber_cursor*)cur;
+  return pCur->iValue>pCur->mxValue || pCur->iValue==0;
+}
+
+/*
+** Called to "rewind" a cursor back to the beginning so that
+** it starts its output over again.  Always called at least once
+** prior to any wholenumberColumn, wholenumberRowid, or wholenumberEof call.
+**
+**    idxNum   Constraints
+**    ------   ---------------------
+**      0      (none)
+**      1      value > $argv0
+**      2      value >= $argv0
+**      4      value < $argv0
+**      8      value <= $argv0
+**
+**      5      value > $argv0 AND value < $argv1
+**      6      value >= $argv0 AND value < $argv1
+**      9      value > $argv0 AND value <= $argv1
+**     10      value >= $argv0 AND value <= $argv1
+*/
+static int wholenumberFilter(
+  sqlite3_vtab_cursor *pVtabCursor, 
+  int idxNum, const char *idxStr,
+  int argc, sqlite3_value **argv
+){
+  wholenumber_cursor *pCur = (wholenumber_cursor *)pVtabCursor;
+  sqlite3_int64 v;
+  int i = 0;
+  pCur->iValue = 1;
+  pCur->mxValue = 0xffffffff;  /* 4294967295 */
+  if( idxNum & 3 ){
+    v = sqlite3_value_int64(argv[0]) + (idxNum&1);
+    if( v>pCur->iValue && v<=pCur->mxValue ) pCur->iValue = v;
+    i++;
+  }
+  if( idxNum & 12 ){
+    v = sqlite3_value_int64(argv[i]) - ((idxNum>>2)&1);
+    if( v>=pCur->iValue && v<pCur->mxValue ) pCur->mxValue = v;
+  }
+  return SQLITE_OK;
+}
+
+/*
+** Search for terms of these forms:
+**
+**  (1)  value > $value
+**  (2)  value >= $value
+**  (4)  value < $value
+**  (8)  value <= $value
+**
+** idxNum is an ORed combination of 1 or 2 with 4 or 8.
+*/
+static int wholenumberBestIndex(
+  sqlite3_vtab *tab,
+  sqlite3_index_info *pIdxInfo
+){
+  int i;
+  int idxNum = 0;
+  int argvIdx = 1;
+  int ltIdx = -1;
+  int gtIdx = -1;
+  const struct sqlite3_index_constraint *pConstraint;
+  pConstraint = pIdxInfo->aConstraint;
+  for(i=0; i<pIdxInfo->nConstraint; i++, pConstraint++){
+    if( pConstraint->usable==0 ) continue;
+    if( (idxNum & 3)==0 && pConstraint->op==SQLITE_INDEX_CONSTRAINT_GT ){
+      idxNum |= 1;
+      ltIdx = i;
+    }
+    if( (idxNum & 3)==0 && pConstraint->op==SQLITE_INDEX_CONSTRAINT_GE ){
+      idxNum |= 2;
+      ltIdx = i;
+    }
+    if( (idxNum & 12)==0 && pConstraint->op==SQLITE_INDEX_CONSTRAINT_LT ){
+      idxNum |= 4;
+      gtIdx = i;
+    }
+    if( (idxNum & 12)==0 && pConstraint->op==SQLITE_INDEX_CONSTRAINT_LE ){
+      idxNum |= 8;
+      gtIdx = i;
+    }
+  }
+  pIdxInfo->idxNum = idxNum;
+  if( ltIdx>=0 ){
+    pIdxInfo->aConstraintUsage[ltIdx].argvIndex = argvIdx++;
+    pIdxInfo->aConstraintUsage[ltIdx].omit = 1;
+  }
+  if( gtIdx>=0 ){
+    pIdxInfo->aConstraintUsage[gtIdx].argvIndex = argvIdx;
+    pIdxInfo->aConstraintUsage[gtIdx].omit = 1;
+  }
+  if( pIdxInfo->nOrderBy==1
+   && pIdxInfo->aOrderBy[0].desc==0
+  ){
+    pIdxInfo->orderByConsumed = 1;
+  }
+  if( (idxNum & 12)==0 ){
+    pIdxInfo->estimatedCost = 1e99;
+  }else if( (idxNum & 3)==0 ){
+    pIdxInfo->estimatedCost = (double)5;
+  }else{
+    pIdxInfo->estimatedCost = (double)1;
+  }
+  return SQLITE_OK;
+}
+
+/*
+** A virtual table module that provides read-only access to a
+** Tcl global variable namespace.
+*/
+static sqlite3_module wholenumberModule = {
+  0,                         /* iVersion */
+  wholenumberConnect,
+  wholenumberConnect,
+  wholenumberBestIndex,
+  wholenumberDisconnect, 
+  wholenumberDisconnect,
+  wholenumberOpen,           /* xOpen - open a cursor */
+  wholenumberClose,          /* xClose - close a cursor */
+  wholenumberFilter,         /* xFilter - configure scan constraints */
+  wholenumberNext,           /* xNext - advance a cursor */
+  wholenumberEof,            /* xEof - check for end of scan */
+  wholenumberColumn,         /* xColumn - read data */
+  wholenumberRowid,          /* xRowid - read data */
+  0,                         /* xUpdate */
+  0,                         /* xBegin */
+  0,                         /* xSync */
+  0,                         /* xCommit */
+  0,                         /* xRollback */
+  0,                         /* xFindMethod */
+  0,                         /* xRename */
+  0,                         /* xSavepoint */
+  0,                         /* xRelease */
+  0,                         /* xRollbackTo */
+  0,                         /* xShadowName */
+  0                          /* xIntegrity */
+};
+
+#endif /* SQLITE_OMIT_VIRTUALTABLE */
+
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_wholenumber_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  int rc = SQLITE_OK;
+  SQLITE_EXTENSION_INIT2(pApi);
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+  rc = sqlite3_create_module(db, "wholenumber", &wholenumberModule, 0);
+#endif
+  return rc;
+}
diff --git a/ext/misc/zipfile.c b/ext/misc/zipfile.c
new file mode 100644
index 0000000000000000000000000000000000000000..2377457dfb93edbd36c0566919b3fb070a53c757
--- /dev/null
+++ b/ext/misc/zipfile.c
@@ -0,0 +1,2246 @@
+/*
+** 2017-12-26
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This file implements a virtual table for reading and writing ZIP archive
+** files.
+**
+** Usage example:
+**
+**     SELECT name, sz, datetime(mtime,'unixepoch') FROM zipfile($filename);
+**
+** Current limitations:
+**
+**    *  No support for encryption
+**    *  No support for ZIP archives spanning multiple files
+**    *  No support for zip64 extensions
+**    *  Only the "inflate/deflate" (zlib) compression method is supported
+*/
+#include "sqlite3ext.h"
+SQLITE_EXTENSION_INIT1
+#include <stdio.h>
+#include <string.h>
+#include <assert.h>
+#ifndef SQLITE_NO_STDINT
+#  include <stdint.h>
+#endif
+
+#include <zlib.h>
+
+/* When used as part of the CLI, the sqlite3_stdio.h module will have
+** been included before this one. In that case use the sqlite3_stdio.h
+** #defines.  If not, create our own for fopen().
+*/
+#ifndef _SQLITE3_STDIO_H_
+# define sqlite3_fopen fopen
+#endif
+
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+
+#ifndef SQLITE_AMALGAMATION
+
+#ifndef UINT32_TYPE
+# ifdef HAVE_UINT32_T
+#  define UINT32_TYPE uint32_t
+# else
+#  define UINT32_TYPE unsigned int
+# endif
+#endif
+#ifndef UINT16_TYPE
+# ifdef HAVE_UINT16_T
+#  define UINT16_TYPE uint16_t
+# else
+#  define UINT16_TYPE unsigned short int
+# endif
+#endif
+typedef sqlite3_int64 i64;
+typedef unsigned char u8;
+typedef UINT32_TYPE u32;           /* 4-byte unsigned integer */
+typedef UINT16_TYPE u16;           /* 2-byte unsigned integer */
+#define MIN(a,b) ((a)<(b) ? (a) : (b))
+
+#if defined(SQLITE_COVERAGE_TEST) || defined(SQLITE_MUTATION_TEST)
+# define SQLITE_OMIT_AUXILIARY_SAFETY_CHECKS 1
+#endif
+#if defined(SQLITE_OMIT_AUXILIARY_SAFETY_CHECKS)
+# define ALWAYS(X)      (1)
+# define NEVER(X)       (0)
+#elif !defined(NDEBUG)
+# define ALWAYS(X)      ((X)?1:(assert(0),0))
+# define NEVER(X)       ((X)?(assert(0),1):0)
+#else
+# define ALWAYS(X)      (X)
+# define NEVER(X)       (X)
+#endif
+
+#endif   /* SQLITE_AMALGAMATION */
+
+/*
+** Definitions for mode bitmasks S_IFDIR, S_IFREG and S_IFLNK.
+**
+** In some ways it would be better to obtain these values from system 
+** header files. But, the dependency is undesirable and (a) these
+** have been stable for decades, (b) the values are part of POSIX and
+** are also made explicit in [man stat], and (c) are part of the 
+** file format for zip archives.
+*/
+#ifndef S_IFDIR
+# define S_IFDIR 0040000
+#endif
+#ifndef S_IFREG
+# define S_IFREG 0100000
+#endif
+#ifndef S_IFLNK
+# define S_IFLNK 0120000
+#endif
+
+static const char ZIPFILE_SCHEMA[] = 
+  "CREATE TABLE y("
+    "name PRIMARY KEY,"  /* 0: Name of file in zip archive */
+    "mode,"              /* 1: POSIX mode for file */
+    "mtime,"             /* 2: Last modification time (secs since 1970)*/
+    "sz,"                /* 3: Size of object */
+    "rawdata,"           /* 4: Raw data */
+    "data,"              /* 5: Uncompressed data */
+    "method,"            /* 6: Compression method (integer) */
+    "z HIDDEN"           /* 7: Name of zip file */
+  ") WITHOUT ROWID;";
+
+#define ZIPFILE_F_COLUMN_IDX 7    /* Index of column "file" in the above */
+#define ZIPFILE_BUFFER_SIZE (64*1024)
+
+
+/*
+** Magic numbers used to read and write zip files.
+**
+** ZIPFILE_NEWENTRY_MADEBY:
+**   Use this value for the "version-made-by" field in new zip file
+**   entries. The upper byte indicates "unix", and the lower byte 
+**   indicates that the zip file matches pkzip specification 3.0. 
+**   This is what info-zip seems to do.
+**
+** ZIPFILE_NEWENTRY_REQUIRED:
+**   Value for "version-required-to-extract" field of new entries.
+**   Version 2.0 is required to support folders and deflate compression.
+**
+** ZIPFILE_NEWENTRY_FLAGS:
+**   Value for "general-purpose-bit-flags" field of new entries. Bit
+**   11 means "utf-8 filename and comment".
+**
+** ZIPFILE_SIGNATURE_CDS:
+**   First 4 bytes of a valid CDS record.
+**
+** ZIPFILE_SIGNATURE_LFH:
+**   First 4 bytes of a valid LFH record.
+**
+** ZIPFILE_SIGNATURE_EOCD
+**   First 4 bytes of a valid EOCD record.
+*/
+#define ZIPFILE_EXTRA_TIMESTAMP   0x5455
+#define ZIPFILE_NEWENTRY_MADEBY   ((3<<8) + 30)
+#define ZIPFILE_NEWENTRY_REQUIRED 20
+#define ZIPFILE_NEWENTRY_FLAGS    0x800
+#define ZIPFILE_SIGNATURE_CDS     0x02014b50
+#define ZIPFILE_SIGNATURE_LFH     0x04034b50
+#define ZIPFILE_SIGNATURE_EOCD    0x06054b50
+
+/*
+** The sizes of the fixed-size part of each of the three main data 
+** structures in a zip archive.
+*/
+#define ZIPFILE_LFH_FIXED_SZ      30
+#define ZIPFILE_EOCD_FIXED_SZ     22
+#define ZIPFILE_CDS_FIXED_SZ      46
+
+/*
+*** 4.3.16  End of central directory record:
+***
+***   end of central dir signature    4 bytes  (0x06054b50)
+***   number of this disk             2 bytes
+***   number of the disk with the
+***   start of the central directory  2 bytes
+***   total number of entries in the
+***   central directory on this disk  2 bytes
+***   total number of entries in
+***   the central directory           2 bytes
+***   size of the central directory   4 bytes
+***   offset of start of central
+***   directory with respect to
+***   the starting disk number        4 bytes
+***   .ZIP file comment length        2 bytes
+***   .ZIP file comment       (variable size)
+*/
+typedef struct ZipfileEOCD ZipfileEOCD;
+struct ZipfileEOCD {
+  u16 iDisk;
+  u16 iFirstDisk;
+  u16 nEntry;
+  u16 nEntryTotal;
+  u32 nSize;
+  u32 iOffset;
+};
+
+/*
+*** 4.3.12  Central directory structure:
+***
+*** ...
+***
+***   central file header signature   4 bytes  (0x02014b50)
+***   version made by                 2 bytes
+***   version needed to extract       2 bytes
+***   general purpose bit flag        2 bytes
+***   compression method              2 bytes
+***   last mod file time              2 bytes
+***   last mod file date              2 bytes
+***   crc-32                          4 bytes
+***   compressed size                 4 bytes
+***   uncompressed size               4 bytes
+***   file name length                2 bytes
+***   extra field length              2 bytes
+***   file comment length             2 bytes
+***   disk number start               2 bytes
+***   internal file attributes        2 bytes
+***   external file attributes        4 bytes
+***   relative offset of local header 4 bytes
+*/
+typedef struct ZipfileCDS ZipfileCDS;
+struct ZipfileCDS {
+  u16 iVersionMadeBy;
+  u16 iVersionExtract;
+  u16 flags;
+  u16 iCompression;
+  u16 mTime;
+  u16 mDate;
+  u32 crc32;
+  u32 szCompressed;
+  u32 szUncompressed;
+  u16 nFile;
+  u16 nExtra;
+  u16 nComment;
+  u16 iDiskStart;
+  u16 iInternalAttr;
+  u32 iExternalAttr;
+  u32 iOffset;
+  char *zFile;                    /* Filename (sqlite3_malloc()) */
+};
+
+/*
+*** 4.3.7  Local file header:
+***
+***   local file header signature     4 bytes  (0x04034b50)
+***   version needed to extract       2 bytes
+***   general purpose bit flag        2 bytes
+***   compression method              2 bytes
+***   last mod file time              2 bytes
+***   last mod file date              2 bytes
+***   crc-32                          4 bytes
+***   compressed size                 4 bytes
+***   uncompressed size               4 bytes
+***   file name length                2 bytes
+***   extra field length              2 bytes
+***   
+*/
+typedef struct ZipfileLFH ZipfileLFH;
+struct ZipfileLFH {
+  u16 iVersionExtract;
+  u16 flags;
+  u16 iCompression;
+  u16 mTime;
+  u16 mDate;
+  u32 crc32;
+  u32 szCompressed;
+  u32 szUncompressed;
+  u16 nFile;
+  u16 nExtra;
+};
+
+typedef struct ZipfileEntry ZipfileEntry;
+struct ZipfileEntry {
+  ZipfileCDS cds;            /* Parsed CDS record */
+  u32 mUnixTime;             /* Modification time, in UNIX format */
+  u8 *aExtra;                /* cds.nExtra+cds.nComment bytes of extra data */
+  i64 iDataOff;              /* Offset to data in file (if aData==0) */
+  u8 *aData;                 /* cds.szCompressed bytes of compressed data */
+  ZipfileEntry *pNext;       /* Next element in in-memory CDS */
+};
+
+/* 
+** Cursor type for zipfile tables.
+*/
+typedef struct ZipfileCsr ZipfileCsr;
+struct ZipfileCsr {
+  sqlite3_vtab_cursor base;  /* Base class - must be first */
+  i64 iId;                   /* Cursor ID */
+  u8 bEof;                   /* True when at EOF */
+  u8 bNoop;                  /* If next xNext() call is no-op */
+
+  /* Used outside of write transactions */
+  FILE *pFile;               /* Zip file */
+  i64 iNextOff;              /* Offset of next record in central directory */
+  ZipfileEOCD eocd;          /* Parse of central directory record */
+
+  ZipfileEntry *pFreeEntry;  /* Free this list when cursor is closed or reset */
+  ZipfileEntry *pCurrent;    /* Current entry */
+  ZipfileCsr *pCsrNext;      /* Next cursor on same virtual table */
+};
+
+typedef struct ZipfileTab ZipfileTab;
+struct ZipfileTab {
+  sqlite3_vtab base;         /* Base class - must be first */
+  char *zFile;               /* Zip file this table accesses (may be NULL) */
+  sqlite3 *db;               /* Host database connection */
+  u8 *aBuffer;               /* Temporary buffer used for various tasks */
+
+  ZipfileCsr *pCsrList;      /* List of cursors */
+  i64 iNextCsrid;
+
+  /* The following are used by write transactions only */
+  ZipfileEntry *pFirstEntry; /* Linked list of all files (if pWriteFd!=0) */
+  ZipfileEntry *pLastEntry;  /* Last element in pFirstEntry list */
+  FILE *pWriteFd;            /* File handle open on zip archive */
+  i64 szCurrent;             /* Current size of zip archive */
+  i64 szOrig;                /* Size of archive at start of transaction */
+};
+
+/*
+** Set the error message contained in context ctx to the results of
+** vprintf(zFmt, ...).
+*/
+static void zipfileCtxErrorMsg(sqlite3_context *ctx, const char *zFmt, ...){
+  char *zMsg = 0;
+  va_list ap;
+  va_start(ap, zFmt);
+  zMsg = sqlite3_vmprintf(zFmt, ap);
+  sqlite3_result_error(ctx, zMsg, -1);
+  sqlite3_free(zMsg);
+  va_end(ap);
+}
+
+/*
+** If string zIn is quoted, dequote it in place. Otherwise, if the string
+** is not quoted, do nothing.
+*/
+static void zipfileDequote(char *zIn){
+  char q = zIn[0];
+  if( q=='"' || q=='\'' || q=='`' || q=='[' ){
+    int iIn = 1;
+    int iOut = 0;
+    if( q=='[' ) q = ']';
+    while( ALWAYS(zIn[iIn]) ){
+      char c = zIn[iIn++];
+      if( c==q && zIn[iIn++]!=q ) break;
+      zIn[iOut++] = c;
+    }
+    zIn[iOut] = '\0';
+  }
+}
+
+/*
+** Construct a new ZipfileTab virtual table object.
+** 
+**   argv[0]   -> module name  ("zipfile")
+**   argv[1]   -> database name
+**   argv[2]   -> table name
+**   argv[...] -> "column name" and other module argument fields.
+*/
+static int zipfileConnect(
+  sqlite3 *db,
+  void *pAux,
+  int argc, const char *const*argv,
+  sqlite3_vtab **ppVtab,
+  char **pzErr
+){
+  int nByte = sizeof(ZipfileTab) + ZIPFILE_BUFFER_SIZE;
+  int nFile = 0;
+  const char *zFile = 0;
+  ZipfileTab *pNew = 0;
+  int rc;
+  (void)pAux;
+
+  /* If the table name is not "zipfile", require that the argument be
+  ** specified. This stops zipfile tables from being created as:
+  **
+  **   CREATE VIRTUAL TABLE zzz USING zipfile();
+  **
+  ** It does not prevent:
+  **
+  **   CREATE VIRTUAL TABLE zipfile USING zipfile();
+  */
+  assert( 0==sqlite3_stricmp(argv[0], "zipfile") );
+  if( (0!=sqlite3_stricmp(argv[2], "zipfile") && argc<4) || argc>4 ){
+    *pzErr = sqlite3_mprintf("zipfile constructor requires one argument");
+    return SQLITE_ERROR;
+  }
+
+  if( argc>3 ){
+    zFile = argv[3];
+    nFile = (int)strlen(zFile)+1;
+  }
+
+  rc = sqlite3_declare_vtab(db, ZIPFILE_SCHEMA);
+  if( rc==SQLITE_OK ){
+    pNew = (ZipfileTab*)sqlite3_malloc64((sqlite3_int64)nByte+nFile);
+    if( pNew==0 ) return SQLITE_NOMEM;
+    memset(pNew, 0, nByte+nFile);
+    pNew->db = db;
+    pNew->aBuffer = (u8*)&pNew[1];
+    if( zFile ){
+      pNew->zFile = (char*)&pNew->aBuffer[ZIPFILE_BUFFER_SIZE];
+      memcpy(pNew->zFile, zFile, nFile);
+      zipfileDequote(pNew->zFile);
+    }
+  }
+  sqlite3_vtab_config(db, SQLITE_VTAB_DIRECTONLY);
+  *ppVtab = (sqlite3_vtab*)pNew;
+  return rc;
+}
+
+/*
+** Free the ZipfileEntry structure indicated by the only argument.
+*/
+static void zipfileEntryFree(ZipfileEntry *p){
+  if( p ){
+    sqlite3_free(p->cds.zFile);
+    sqlite3_free(p);
+  }
+}
+
+/*
+** Release resources that should be freed at the end of a write 
+** transaction.
+*/
+static void zipfileCleanupTransaction(ZipfileTab *pTab){
+  ZipfileEntry *pEntry;
+  ZipfileEntry *pNext;
+
+  if( pTab->pWriteFd ){
+    fclose(pTab->pWriteFd);
+    pTab->pWriteFd = 0;
+  }
+  for(pEntry=pTab->pFirstEntry; pEntry; pEntry=pNext){
+    pNext = pEntry->pNext;
+    zipfileEntryFree(pEntry);
+  }
+  pTab->pFirstEntry = 0;
+  pTab->pLastEntry = 0;
+  pTab->szCurrent = 0;
+  pTab->szOrig = 0;
+}
+
+/*
+** This method is the destructor for zipfile vtab objects.
+*/
+static int zipfileDisconnect(sqlite3_vtab *pVtab){
+  zipfileCleanupTransaction((ZipfileTab*)pVtab);
+  sqlite3_free(pVtab);
+  return SQLITE_OK;
+}
+
+/*
+** Constructor for a new ZipfileCsr object.
+*/
+static int zipfileOpen(sqlite3_vtab *p, sqlite3_vtab_cursor **ppCsr){
+  ZipfileTab *pTab = (ZipfileTab*)p;
+  ZipfileCsr *pCsr;
+  pCsr = sqlite3_malloc(sizeof(*pCsr));
+  *ppCsr = (sqlite3_vtab_cursor*)pCsr;
+  if( pCsr==0 ){
+    return SQLITE_NOMEM;
+  }
+  memset(pCsr, 0, sizeof(*pCsr));
+  pCsr->iId = ++pTab->iNextCsrid;
+  pCsr->pCsrNext = pTab->pCsrList;
+  pTab->pCsrList = pCsr;
+  return SQLITE_OK;
+}
+
+/*
+** Reset a cursor back to the state it was in when first returned
+** by zipfileOpen().
+*/
+static void zipfileResetCursor(ZipfileCsr *pCsr){
+  ZipfileEntry *p;
+  ZipfileEntry *pNext;
+
+  pCsr->bEof = 0;
+  if( pCsr->pFile ){
+    fclose(pCsr->pFile);
+    pCsr->pFile = 0;
+    zipfileEntryFree(pCsr->pCurrent);
+    pCsr->pCurrent = 0;
+  }
+
+  for(p=pCsr->pFreeEntry; p; p=pNext){
+    pNext = p->pNext;
+    zipfileEntryFree(p);
+  }
+}
+
+/*
+** Destructor for an ZipfileCsr.
+*/
+static int zipfileClose(sqlite3_vtab_cursor *cur){
+  ZipfileCsr *pCsr = (ZipfileCsr*)cur;
+  ZipfileTab *pTab = (ZipfileTab*)(pCsr->base.pVtab);
+  ZipfileCsr **pp;
+  zipfileResetCursor(pCsr);
+
+  /* Remove this cursor from the ZipfileTab.pCsrList list. */
+  for(pp=&pTab->pCsrList; *pp!=pCsr; pp=&((*pp)->pCsrNext));
+  *pp = pCsr->pCsrNext;
+
+  sqlite3_free(pCsr);
+  return SQLITE_OK;
+}
+
+/*
+** Set the error message for the virtual table associated with cursor
+** pCsr to the results of vprintf(zFmt, ...).
+*/
+static void zipfileTableErr(ZipfileTab *pTab, const char *zFmt, ...){
+  va_list ap;
+  va_start(ap, zFmt);
+  sqlite3_free(pTab->base.zErrMsg);
+  pTab->base.zErrMsg = sqlite3_vmprintf(zFmt, ap);
+  va_end(ap);
+}
+static void zipfileCursorErr(ZipfileCsr *pCsr, const char *zFmt, ...){
+  va_list ap;
+  va_start(ap, zFmt);
+  sqlite3_free(pCsr->base.pVtab->zErrMsg);
+  pCsr->base.pVtab->zErrMsg = sqlite3_vmprintf(zFmt, ap);
+  va_end(ap);
+}
+
+/*
+** Read nRead bytes of data from offset iOff of file pFile into buffer
+** aRead[]. Return SQLITE_OK if successful, or an SQLite error code
+** otherwise. 
+**
+** If an error does occur, output variable (*pzErrmsg) may be set to point
+** to an English language error message. It is the responsibility of the
+** caller to eventually free this buffer using
+** sqlite3_free().
+*/
+static int zipfileReadData(
+  FILE *pFile,                    /* Read from this file */
+  u8 *aRead,                      /* Read into this buffer */
+  int nRead,                      /* Number of bytes to read */
+  i64 iOff,                       /* Offset to read from */
+  char **pzErrmsg                 /* OUT: Error message (from sqlite3_malloc) */
+){
+  size_t n;
+  fseek(pFile, (long)iOff, SEEK_SET);
+  n = fread(aRead, 1, nRead, pFile);
+  if( (int)n!=nRead ){
+    *pzErrmsg = sqlite3_mprintf("error in fread()");
+    return SQLITE_ERROR;
+  }
+  return SQLITE_OK;
+}
+
+static int zipfileAppendData(
+  ZipfileTab *pTab,
+  const u8 *aWrite,
+  int nWrite
+){
+  if( nWrite>0 ){
+    size_t n = nWrite;
+    fseek(pTab->pWriteFd, (long)pTab->szCurrent, SEEK_SET);
+    n = fwrite(aWrite, 1, nWrite, pTab->pWriteFd);
+    if( (int)n!=nWrite ){
+      pTab->base.zErrMsg = sqlite3_mprintf("error in fwrite()");
+      return SQLITE_ERROR;
+    }
+    pTab->szCurrent += nWrite;
+  }
+  return SQLITE_OK;
+}
+
+/*
+** Read and return a 16-bit little-endian unsigned integer from buffer aBuf.
+*/
+static u16 zipfileGetU16(const u8 *aBuf){
+  return (aBuf[1] << 8) + aBuf[0];
+}
+
+/*
+** Read and return a 32-bit little-endian unsigned integer from buffer aBuf.
+*/
+static u32 zipfileGetU32(const u8 *aBuf){
+  if( aBuf==0 ) return 0;
+  return ((u32)(aBuf[3]) << 24)
+       + ((u32)(aBuf[2]) << 16)
+       + ((u32)(aBuf[1]) <<  8)
+       + ((u32)(aBuf[0]) <<  0);
+}
+
+/*
+** Write a 16-bit little endiate integer into buffer aBuf.
+*/
+static void zipfilePutU16(u8 *aBuf, u16 val){
+  aBuf[0] = val & 0xFF;
+  aBuf[1] = (val>>8) & 0xFF;
+}
+
+/*
+** Write a 32-bit little endiate integer into buffer aBuf.
+*/
+static void zipfilePutU32(u8 *aBuf, u32 val){
+  aBuf[0] = val & 0xFF;
+  aBuf[1] = (val>>8) & 0xFF;
+  aBuf[2] = (val>>16) & 0xFF;
+  aBuf[3] = (val>>24) & 0xFF;
+}
+
+#define zipfileRead32(aBuf) ( aBuf+=4, zipfileGetU32(aBuf-4) )
+#define zipfileRead16(aBuf) ( aBuf+=2, zipfileGetU16(aBuf-2) )
+
+#define zipfileWrite32(aBuf,val) { zipfilePutU32(aBuf,val); aBuf+=4; }
+#define zipfileWrite16(aBuf,val) { zipfilePutU16(aBuf,val); aBuf+=2; }
+
+/*
+** Magic numbers used to read CDS records.
+*/
+#define ZIPFILE_CDS_NFILE_OFF        28
+#define ZIPFILE_CDS_SZCOMPRESSED_OFF 20
+
+/*
+** Decode the CDS record in buffer aBuf into (*pCDS). Return SQLITE_ERROR
+** if the record is not well-formed, or SQLITE_OK otherwise.
+*/
+static int zipfileReadCDS(u8 *aBuf, ZipfileCDS *pCDS){
+  u8 *aRead = aBuf;
+  u32 sig = zipfileRead32(aRead);
+  int rc = SQLITE_OK;
+  if( sig!=ZIPFILE_SIGNATURE_CDS ){
+    rc = SQLITE_ERROR;
+  }else{
+    pCDS->iVersionMadeBy = zipfileRead16(aRead);
+    pCDS->iVersionExtract = zipfileRead16(aRead);
+    pCDS->flags = zipfileRead16(aRead);
+    pCDS->iCompression = zipfileRead16(aRead);
+    pCDS->mTime = zipfileRead16(aRead);
+    pCDS->mDate = zipfileRead16(aRead);
+    pCDS->crc32 = zipfileRead32(aRead);
+    pCDS->szCompressed = zipfileRead32(aRead);
+    pCDS->szUncompressed = zipfileRead32(aRead);
+    assert( aRead==&aBuf[ZIPFILE_CDS_NFILE_OFF] );
+    pCDS->nFile = zipfileRead16(aRead);
+    pCDS->nExtra = zipfileRead16(aRead);
+    pCDS->nComment = zipfileRead16(aRead);
+    pCDS->iDiskStart = zipfileRead16(aRead);
+    pCDS->iInternalAttr = zipfileRead16(aRead);
+    pCDS->iExternalAttr = zipfileRead32(aRead);
+    pCDS->iOffset = zipfileRead32(aRead);
+    assert( aRead==&aBuf[ZIPFILE_CDS_FIXED_SZ] );
+  }
+
+  return rc;
+}
+
+/*
+** Decode the LFH record in buffer aBuf into (*pLFH). Return SQLITE_ERROR
+** if the record is not well-formed, or SQLITE_OK otherwise.
+*/
+static int zipfileReadLFH(
+  u8 *aBuffer,
+  ZipfileLFH *pLFH
+){
+  u8 *aRead = aBuffer;
+  int rc = SQLITE_OK;
+
+  u32 sig = zipfileRead32(aRead);
+  if( sig!=ZIPFILE_SIGNATURE_LFH ){
+    rc = SQLITE_ERROR;
+  }else{
+    pLFH->iVersionExtract = zipfileRead16(aRead);
+    pLFH->flags = zipfileRead16(aRead);
+    pLFH->iCompression = zipfileRead16(aRead);
+    pLFH->mTime = zipfileRead16(aRead);
+    pLFH->mDate = zipfileRead16(aRead);
+    pLFH->crc32 = zipfileRead32(aRead);
+    pLFH->szCompressed = zipfileRead32(aRead);
+    pLFH->szUncompressed = zipfileRead32(aRead);
+    pLFH->nFile = zipfileRead16(aRead);
+    pLFH->nExtra = zipfileRead16(aRead);
+  }
+  return rc;
+}
+
+
+/*
+** Buffer aExtra (size nExtra bytes) contains zip archive "extra" fields.
+** Scan through this buffer to find an "extra-timestamp" field. If one
+** exists, extract the 32-bit modification-timestamp from it and store
+** the value in output parameter *pmTime.
+**
+** Zero is returned if no extra-timestamp record could be found (and so
+** *pmTime is left unchanged), or non-zero otherwise.
+**
+** The general format of an extra field is:
+**
+**   Header ID    2 bytes
+**   Data Size    2 bytes
+**   Data         N bytes
+*/
+static int zipfileScanExtra(u8 *aExtra, int nExtra, u32 *pmTime){
+  int ret = 0;
+  u8 *p = aExtra;
+  u8 *pEnd = &aExtra[nExtra];
+
+  while( p<pEnd ){
+    u16 id = zipfileRead16(p);
+    u16 nByte = zipfileRead16(p);
+
+    switch( id ){
+      case ZIPFILE_EXTRA_TIMESTAMP: {
+        u8 b = p[0];
+        if( b & 0x01 ){     /* 0x01 -> modtime is present */
+          *pmTime = zipfileGetU32(&p[1]);
+          ret = 1;
+        }
+        break;
+      }
+    }
+
+    p += nByte;
+  }
+  return ret;
+}
+
+/*
+** Convert the standard MS-DOS timestamp stored in the mTime and mDate
+** fields of the CDS structure passed as the only argument to a 32-bit
+** UNIX seconds-since-the-epoch timestamp. Return the result.
+**
+** "Standard" MS-DOS time format:
+**
+**   File modification time:
+**     Bits 00-04: seconds divided by 2
+**     Bits 05-10: minute
+**     Bits 11-15: hour
+**   File modification date:
+**     Bits 00-04: day
+**     Bits 05-08: month (1-12)
+**     Bits 09-15: years from 1980 
+**
+** https://msdn.microsoft.com/en-us/library/9kkf9tah.aspx
+*/
+static u32 zipfileMtime(ZipfileCDS *pCDS){
+  int Y,M,D,X1,X2,A,B,sec,min,hr;
+  i64 JDsec;
+  Y = (1980 + ((pCDS->mDate >> 9) & 0x7F));
+  M = ((pCDS->mDate >> 5) & 0x0F);
+  D = (pCDS->mDate & 0x1F);
+  sec = (pCDS->mTime & 0x1F)*2;
+  min = (pCDS->mTime >> 5) & 0x3F;
+  hr = (pCDS->mTime >> 11) & 0x1F;
+  if( M<=2 ){
+    Y--;
+    M += 12;
+  }
+  X1 = 36525*(Y+4716)/100;
+  X2 = 306001*(M+1)/10000;
+  A = Y/100;
+  B = 2 - A + (A/4);
+  JDsec = (i64)((X1 + X2 + D + B - 1524.5)*86400) + hr*3600 + min*60 + sec;
+  return (u32)(JDsec - (i64)24405875*(i64)8640);
+}
+
+/*
+** The opposite of zipfileMtime(). This function populates the mTime and
+** mDate fields of the CDS structure passed as the first argument according
+** to the UNIX timestamp value passed as the second.
+*/
+static void zipfileMtimeToDos(ZipfileCDS *pCds, u32 mUnixTime){
+  /* Convert unix timestamp to JD (2440588 is noon on 1/1/1970) */
+  i64 JD = (i64)2440588 + mUnixTime / (24*60*60);
+
+  int A, B, C, D, E;
+  int yr, mon, day;
+  int hr, min, sec;
+
+  A = (int)((JD - 1867216.25)/36524.25);
+  A = (int)(JD + 1 + A - (A/4));
+  B = A + 1524;
+  C = (int)((B - 122.1)/365.25);
+  D = (36525*(C&32767))/100;
+  E = (int)((B-D)/30.6001);
+
+  day = B - D - (int)(30.6001*E);
+  mon = (E<14 ? E-1 : E-13);
+  yr = mon>2 ? C-4716 : C-4715;
+
+  hr = (mUnixTime % (24*60*60)) / (60*60);
+  min = (mUnixTime % (60*60)) / 60;
+  sec = (mUnixTime % 60);
+
+  if( yr>=1980 ){
+    pCds->mDate = (u16)(day + (mon << 5) + ((yr-1980) << 9));
+    pCds->mTime = (u16)(sec/2 + (min<<5) + (hr<<11));
+  }else{
+    pCds->mDate = pCds->mTime = 0;
+  }
+
+  assert( mUnixTime<315507600 
+       || mUnixTime==zipfileMtime(pCds) 
+       || ((mUnixTime % 2) && mUnixTime-1==zipfileMtime(pCds)) 
+       /* || (mUnixTime % 2) */
+  );
+}
+
+/*
+** If aBlob is not NULL, then it is a pointer to a buffer (nBlob bytes in
+** size) containing an entire zip archive image. Or, if aBlob is NULL,
+** then pFile is a file-handle open on a zip file. In either case, this
+** function creates a ZipfileEntry object based on the zip archive entry
+** for which the CDS record is at offset iOff.
+**
+** If successful, SQLITE_OK is returned and (*ppEntry) set to point to
+** the new object. Otherwise, an SQLite error code is returned and the
+** final value of (*ppEntry) undefined.
+*/
+static int zipfileGetEntry(
+  ZipfileTab *pTab,               /* Store any error message here */
+  const u8 *aBlob,                /* Pointer to in-memory file image */
+  int nBlob,                      /* Size of aBlob[] in bytes */
+  FILE *pFile,                    /* If aBlob==0, read from this file */
+  i64 iOff,                       /* Offset of CDS record */
+  ZipfileEntry **ppEntry          /* OUT: Pointer to new object */
+){
+  u8 *aRead;
+  char **pzErr = &pTab->base.zErrMsg;
+  int rc = SQLITE_OK;
+  (void)nBlob;
+
+  if( aBlob==0 ){
+    aRead = pTab->aBuffer;
+    rc = zipfileReadData(pFile, aRead, ZIPFILE_CDS_FIXED_SZ, iOff, pzErr);
+  }else{
+    aRead = (u8*)&aBlob[iOff];
+  }
+
+  if( rc==SQLITE_OK ){
+    sqlite3_int64 nAlloc;
+    ZipfileEntry *pNew;
+
+    int nFile = zipfileGetU16(&aRead[ZIPFILE_CDS_NFILE_OFF]);
+    int nExtra = zipfileGetU16(&aRead[ZIPFILE_CDS_NFILE_OFF+2]);
+    nExtra += zipfileGetU16(&aRead[ZIPFILE_CDS_NFILE_OFF+4]);
+
+    nAlloc = sizeof(ZipfileEntry) + nExtra;
+    if( aBlob ){
+      nAlloc += zipfileGetU32(&aRead[ZIPFILE_CDS_SZCOMPRESSED_OFF]);
+    }
+
+    pNew = (ZipfileEntry*)sqlite3_malloc64(nAlloc);
+    if( pNew==0 ){
+      rc = SQLITE_NOMEM;
+    }else{
+      memset(pNew, 0, sizeof(ZipfileEntry));
+      rc = zipfileReadCDS(aRead, &pNew->cds);
+      if( rc!=SQLITE_OK ){
+        *pzErr = sqlite3_mprintf("failed to read CDS at offset %lld", iOff);
+      }else if( aBlob==0 ){
+        rc = zipfileReadData(
+            pFile, aRead, nExtra+nFile, iOff+ZIPFILE_CDS_FIXED_SZ, pzErr
+        );
+      }else{
+        aRead = (u8*)&aBlob[iOff + ZIPFILE_CDS_FIXED_SZ];
+      }
+    }
+
+    if( rc==SQLITE_OK ){
+      u32 *pt = &pNew->mUnixTime;
+      pNew->cds.zFile = sqlite3_mprintf("%.*s", nFile, aRead); 
+      pNew->aExtra = (u8*)&pNew[1];
+      memcpy(pNew->aExtra, &aRead[nFile], nExtra);
+      if( pNew->cds.zFile==0 ){
+        rc = SQLITE_NOMEM;
+      }else if( 0==zipfileScanExtra(&aRead[nFile], pNew->cds.nExtra, pt) ){
+        pNew->mUnixTime = zipfileMtime(&pNew->cds);
+      }
+    }
+
+    if( rc==SQLITE_OK ){
+      static const int szFix = ZIPFILE_LFH_FIXED_SZ;
+      ZipfileLFH lfh;
+      if( pFile ){
+        rc = zipfileReadData(pFile, aRead, szFix, pNew->cds.iOffset, pzErr);
+      }else{
+        aRead = (u8*)&aBlob[pNew->cds.iOffset];
+      }
+
+      if( rc==SQLITE_OK ) rc = zipfileReadLFH(aRead, &lfh);
+      if( rc==SQLITE_OK ){
+        pNew->iDataOff =  pNew->cds.iOffset + ZIPFILE_LFH_FIXED_SZ;
+        pNew->iDataOff += lfh.nFile + lfh.nExtra;
+        if( aBlob && pNew->cds.szCompressed ){
+          pNew->aData = &pNew->aExtra[nExtra];
+          memcpy(pNew->aData, &aBlob[pNew->iDataOff], pNew->cds.szCompressed);
+        }
+      }else{
+        *pzErr = sqlite3_mprintf("failed to read LFH at offset %d", 
+            (int)pNew->cds.iOffset
+        );
+      }
+    }
+
+    if( rc!=SQLITE_OK ){
+      zipfileEntryFree(pNew);
+    }else{
+      *ppEntry = pNew;
+    }
+  }
+
+  return rc;
+}
+
+/*
+** Advance an ZipfileCsr to its next row of output.
+*/
+static int zipfileNext(sqlite3_vtab_cursor *cur){
+  ZipfileCsr *pCsr = (ZipfileCsr*)cur;
+  int rc = SQLITE_OK;
+
+  if( pCsr->pFile ){
+    i64 iEof = pCsr->eocd.iOffset + pCsr->eocd.nSize;
+    zipfileEntryFree(pCsr->pCurrent);
+    pCsr->pCurrent = 0;
+    if( pCsr->iNextOff>=iEof ){
+      pCsr->bEof = 1;
+    }else{
+      ZipfileEntry *p = 0;
+      ZipfileTab *pTab = (ZipfileTab*)(cur->pVtab);
+      rc = zipfileGetEntry(pTab, 0, 0, pCsr->pFile, pCsr->iNextOff, &p);
+      if( rc==SQLITE_OK ){
+        pCsr->iNextOff += ZIPFILE_CDS_FIXED_SZ;
+        pCsr->iNextOff += (int)p->cds.nExtra + p->cds.nFile + p->cds.nComment;
+      }
+      pCsr->pCurrent = p;
+    }
+  }else{
+    if( !pCsr->bNoop ){
+      pCsr->pCurrent = pCsr->pCurrent->pNext;
+    }
+    if( pCsr->pCurrent==0 ){
+      pCsr->bEof = 1;
+    }
+  }
+
+  pCsr->bNoop = 0;
+  return rc;
+}
+
+static void zipfileFree(void *p) { 
+  sqlite3_free(p); 
+}
+
+/*
+** Buffer aIn (size nIn bytes) contains compressed data. Uncompressed, the
+** size is nOut bytes. This function uncompresses the data and sets the
+** return value in context pCtx to the result (a blob).
+**
+** If an error occurs, an error code is left in pCtx instead.
+*/
+static void zipfileInflate(
+  sqlite3_context *pCtx,          /* Store result here */
+  const u8 *aIn,                  /* Compressed data */
+  int nIn,                        /* Size of buffer aIn[] in bytes */
+  int nOut                        /* Expected output size */
+){
+  u8 *aRes = sqlite3_malloc(nOut);
+  if( aRes==0 ){
+    sqlite3_result_error_nomem(pCtx);
+  }else{
+    int err;
+    z_stream str;
+    memset(&str, 0, sizeof(str));
+
+    str.next_in = (Byte*)aIn;
+    str.avail_in = nIn;
+    str.next_out = (Byte*)aRes;
+    str.avail_out = nOut;
+
+    err = inflateInit2(&str, -15);
+    if( err!=Z_OK ){
+      zipfileCtxErrorMsg(pCtx, "inflateInit2() failed (%d)", err);
+    }else{
+      err = inflate(&str, Z_NO_FLUSH);
+      if( err!=Z_STREAM_END ){
+        zipfileCtxErrorMsg(pCtx, "inflate() failed (%d)", err);
+      }else{
+        sqlite3_result_blob(pCtx, aRes, nOut, zipfileFree);
+        aRes = 0;
+      }
+    }
+    sqlite3_free(aRes);
+    inflateEnd(&str);
+  }
+}
+
+/*
+** Buffer aIn (size nIn bytes) contains uncompressed data. This function
+** compresses it and sets (*ppOut) to point to a buffer containing the
+** compressed data. The caller is responsible for eventually calling
+** sqlite3_free() to release buffer (*ppOut). Before returning, (*pnOut) 
+** is set to the size of buffer (*ppOut) in bytes.
+**
+** If no error occurs, SQLITE_OK is returned. Otherwise, an SQLite error
+** code is returned and an error message left in virtual-table handle
+** pTab. The values of (*ppOut) and (*pnOut) are left unchanged in this
+** case.
+*/
+static int zipfileDeflate(
+  const u8 *aIn, int nIn,         /* Input */
+  u8 **ppOut, int *pnOut,         /* Output */
+  char **pzErr                    /* OUT: Error message */
+){
+  int rc = SQLITE_OK;
+  sqlite3_int64 nAlloc;
+  z_stream str;
+  u8 *aOut;
+
+  memset(&str, 0, sizeof(str));
+  str.next_in = (Bytef*)aIn;
+  str.avail_in = nIn;
+  deflateInit2(&str, 9, Z_DEFLATED, -15, 8, Z_DEFAULT_STRATEGY);
+
+  nAlloc = deflateBound(&str, nIn);
+  aOut = (u8*)sqlite3_malloc64(nAlloc);
+  if( aOut==0 ){
+    rc = SQLITE_NOMEM;
+  }else{
+    int res;
+    str.next_out = aOut;
+    str.avail_out = nAlloc;
+    res = deflate(&str, Z_FINISH);
+    if( res==Z_STREAM_END ){
+      *ppOut = aOut;
+      *pnOut = (int)str.total_out;
+    }else{
+      sqlite3_free(aOut);
+      *pzErr = sqlite3_mprintf("zipfile: deflate() error");
+      rc = SQLITE_ERROR;
+    }
+    deflateEnd(&str);
+  }
+
+  return rc;
+}
+
+
+/*
+** Return values of columns for the row at which the series_cursor
+** is currently pointing.
+*/
+static int zipfileColumn(
+  sqlite3_vtab_cursor *cur,   /* The cursor */
+  sqlite3_context *ctx,       /* First argument to sqlite3_result_...() */
+  int i                       /* Which column to return */
+){
+  ZipfileCsr *pCsr = (ZipfileCsr*)cur;
+  ZipfileCDS *pCDS = &pCsr->pCurrent->cds;
+  int rc = SQLITE_OK;
+  switch( i ){
+    case 0:   /* name */
+      sqlite3_result_text(ctx, pCDS->zFile, -1, SQLITE_TRANSIENT);
+      break;
+    case 1:   /* mode */
+      /* TODO: Whether or not the following is correct surely depends on
+      ** the platform on which the archive was created.  */
+      sqlite3_result_int(ctx, pCDS->iExternalAttr >> 16);
+      break;
+    case 2: { /* mtime */
+      sqlite3_result_int64(ctx, pCsr->pCurrent->mUnixTime);
+      break;
+    }
+    case 3: { /* sz */
+      if( sqlite3_vtab_nochange(ctx)==0 ){
+        sqlite3_result_int64(ctx, pCDS->szUncompressed);
+      }
+      break;
+    }
+    case 4:   /* rawdata */
+      if( sqlite3_vtab_nochange(ctx) ) break;
+    case 5: { /* data */
+      if( i==4 || pCDS->iCompression==0 || pCDS->iCompression==8 ){
+        int sz = pCDS->szCompressed;
+        int szFinal = pCDS->szUncompressed;
+        if( szFinal>0 ){
+          u8 *aBuf;
+          u8 *aFree = 0;
+          if( pCsr->pCurrent->aData ){
+            aBuf = pCsr->pCurrent->aData;
+          }else{
+            aBuf = aFree = sqlite3_malloc64(sz);
+            if( aBuf==0 ){
+              rc = SQLITE_NOMEM;
+            }else{
+              FILE *pFile = pCsr->pFile;
+              if( pFile==0 ){
+                pFile = ((ZipfileTab*)(pCsr->base.pVtab))->pWriteFd;
+              }
+              rc = zipfileReadData(pFile, aBuf, sz, pCsr->pCurrent->iDataOff,
+                  &pCsr->base.pVtab->zErrMsg
+              );
+            }
+          }
+          if( rc==SQLITE_OK ){
+            if( i==5 && pCDS->iCompression ){
+              zipfileInflate(ctx, aBuf, sz, szFinal);
+            }else{
+              sqlite3_result_blob(ctx, aBuf, sz, SQLITE_TRANSIENT);
+            }
+          }
+          sqlite3_free(aFree);
+        }else{
+          /* Figure out if this is a directory or a zero-sized file. Consider
+          ** it to be a directory either if the mode suggests so, or if
+          ** the final character in the name is '/'.  */
+          u32 mode = pCDS->iExternalAttr >> 16;
+          if( !(mode & S_IFDIR)
+           && pCDS->nFile>=1
+           && pCDS->zFile[pCDS->nFile-1]!='/'
+          ){
+            sqlite3_result_blob(ctx, "", 0, SQLITE_STATIC);
+          }
+        }
+      }
+      break;
+    }
+    case 6:   /* method */
+      sqlite3_result_int(ctx, pCDS->iCompression);
+      break;
+    default:  /* z */
+      assert( i==7 );
+      sqlite3_result_int64(ctx, pCsr->iId);
+      break;
+  }
+
+  return rc;
+}
+
+/*
+** Return TRUE if the cursor is at EOF.
+*/
+static int zipfileEof(sqlite3_vtab_cursor *cur){
+  ZipfileCsr *pCsr = (ZipfileCsr*)cur;
+  return pCsr->bEof;
+}
+
+/*
+** If aBlob is not NULL, then it points to a buffer nBlob bytes in size
+** containing an entire zip archive image. Or, if aBlob is NULL, then pFile
+** is guaranteed to be a file-handle open on a zip file.
+**
+** This function attempts to locate the EOCD record within the zip archive
+** and populate *pEOCD with the results of decoding it. SQLITE_OK is
+** returned if successful. Otherwise, an SQLite error code is returned and
+** an English language error message may be left in virtual-table pTab.
+*/
+static int zipfileReadEOCD(
+  ZipfileTab *pTab,               /* Return errors here */
+  const u8 *aBlob,                /* Pointer to in-memory file image */
+  int nBlob,                      /* Size of aBlob[] in bytes */
+  FILE *pFile,                    /* Read from this file if aBlob==0 */
+  ZipfileEOCD *pEOCD              /* Object to populate */
+){
+  u8 *aRead = pTab->aBuffer;      /* Temporary buffer */
+  int nRead;                      /* Bytes to read from file */
+  int rc = SQLITE_OK;
+
+  memset(pEOCD, 0, sizeof(ZipfileEOCD));
+  if( aBlob==0 ){
+    i64 iOff;                     /* Offset to read from */
+    i64 szFile;                   /* Total size of file in bytes */
+    fseek(pFile, 0, SEEK_END);
+    szFile = (i64)ftell(pFile);
+    if( szFile==0 ){
+      return SQLITE_OK;
+    }
+    nRead = (int)(MIN(szFile, ZIPFILE_BUFFER_SIZE));
+    iOff = szFile - nRead;
+    rc = zipfileReadData(pFile, aRead, nRead, iOff, &pTab->base.zErrMsg);
+  }else{
+    nRead = (int)(MIN(nBlob, ZIPFILE_BUFFER_SIZE));
+    aRead = (u8*)&aBlob[nBlob-nRead];
+  }
+
+  if( rc==SQLITE_OK ){
+    int i;
+
+    /* Scan backwards looking for the signature bytes */
+    for(i=nRead-20; i>=0; i--){
+      if( aRead[i]==0x50 && aRead[i+1]==0x4b 
+       && aRead[i+2]==0x05 && aRead[i+3]==0x06 
+      ){
+        break;
+      }
+    }
+    if( i<0 ){
+      pTab->base.zErrMsg = sqlite3_mprintf(
+          "cannot find end of central directory record"
+      );
+      return SQLITE_ERROR;
+    }
+
+    aRead += i+4;
+    pEOCD->iDisk = zipfileRead16(aRead);
+    pEOCD->iFirstDisk = zipfileRead16(aRead);
+    pEOCD->nEntry = zipfileRead16(aRead);
+    pEOCD->nEntryTotal = zipfileRead16(aRead);
+    pEOCD->nSize = zipfileRead32(aRead);
+    pEOCD->iOffset = zipfileRead32(aRead);
+  }
+
+  return rc;
+}
+
+/*
+** Add object pNew to the linked list that begins at ZipfileTab.pFirstEntry 
+** and ends with pLastEntry. If argument pBefore is NULL, then pNew is added
+** to the end of the list. Otherwise, it is added to the list immediately
+** before pBefore (which is guaranteed to be a part of said list).
+*/
+static void zipfileAddEntry(
+  ZipfileTab *pTab, 
+  ZipfileEntry *pBefore, 
+  ZipfileEntry *pNew
+){
+  assert( (pTab->pFirstEntry==0)==(pTab->pLastEntry==0) );
+  assert( pNew->pNext==0 );
+  if( pBefore==0 ){
+    if( pTab->pFirstEntry==0 ){
+      pTab->pFirstEntry = pTab->pLastEntry = pNew;
+    }else{
+      assert( pTab->pLastEntry->pNext==0 );
+      pTab->pLastEntry->pNext = pNew;
+      pTab->pLastEntry = pNew;
+    }
+  }else{
+    ZipfileEntry **pp;
+    for(pp=&pTab->pFirstEntry; *pp!=pBefore; pp=&((*pp)->pNext));
+    pNew->pNext = pBefore;
+    *pp = pNew;
+  }
+}
+
+static int zipfileLoadDirectory(ZipfileTab *pTab, const u8 *aBlob, int nBlob){
+  ZipfileEOCD eocd;
+  int rc;
+  int i;
+  i64 iOff;
+
+  rc = zipfileReadEOCD(pTab, aBlob, nBlob, pTab->pWriteFd, &eocd);
+  iOff = eocd.iOffset;
+  for(i=0; rc==SQLITE_OK && i<eocd.nEntry; i++){
+    ZipfileEntry *pNew = 0;
+    rc = zipfileGetEntry(pTab, aBlob, nBlob, pTab->pWriteFd, iOff, &pNew);
+
+    if( rc==SQLITE_OK ){
+      zipfileAddEntry(pTab, 0, pNew);
+      iOff += ZIPFILE_CDS_FIXED_SZ;
+      iOff += (int)pNew->cds.nExtra + pNew->cds.nFile + pNew->cds.nComment;
+    }
+  }
+  return rc;
+}
+
+/*
+** xFilter callback.
+*/
+static int zipfileFilter(
+  sqlite3_vtab_cursor *cur, 
+  int idxNum, const char *idxStr,
+  int argc, sqlite3_value **argv
+){
+  ZipfileTab *pTab = (ZipfileTab*)cur->pVtab;
+  ZipfileCsr *pCsr = (ZipfileCsr*)cur;
+  const char *zFile = 0;          /* Zip file to scan */
+  int rc = SQLITE_OK;             /* Return Code */
+  int bInMemory = 0;              /* True for an in-memory zipfile */
+
+  (void)idxStr;
+  (void)argc;
+
+  zipfileResetCursor(pCsr);
+
+  if( pTab->zFile ){
+    zFile = pTab->zFile;
+  }else if( idxNum==0 ){
+    zipfileCursorErr(pCsr, "zipfile() function requires an argument");
+    return SQLITE_ERROR;
+  }else if( sqlite3_value_type(argv[0])==SQLITE_BLOB ){
+    static const u8 aEmptyBlob = 0;
+    const u8 *aBlob = (const u8*)sqlite3_value_blob(argv[0]);
+    int nBlob = sqlite3_value_bytes(argv[0]);
+    assert( pTab->pFirstEntry==0 );
+    if( aBlob==0 ){
+      aBlob = &aEmptyBlob;
+      nBlob = 0;
+    }
+    rc = zipfileLoadDirectory(pTab, aBlob, nBlob);
+    pCsr->pFreeEntry = pTab->pFirstEntry;
+    pTab->pFirstEntry = pTab->pLastEntry = 0;
+    if( rc!=SQLITE_OK ) return rc;
+    bInMemory = 1;
+  }else{
+    zFile = (const char*)sqlite3_value_text(argv[0]);
+  }
+
+  if( 0==pTab->pWriteFd && 0==bInMemory ){
+    pCsr->pFile = zFile ? sqlite3_fopen(zFile, "rb") : 0;
+    if( pCsr->pFile==0 ){
+      zipfileCursorErr(pCsr, "cannot open file: %s", zFile);
+      rc = SQLITE_ERROR;
+    }else{
+      rc = zipfileReadEOCD(pTab, 0, 0, pCsr->pFile, &pCsr->eocd);
+      if( rc==SQLITE_OK ){
+        if( pCsr->eocd.nEntry==0 ){
+          pCsr->bEof = 1;
+        }else{
+          pCsr->iNextOff = pCsr->eocd.iOffset;
+          rc = zipfileNext(cur);
+        }
+      }
+    }
+  }else{
+    pCsr->bNoop = 1;
+    pCsr->pCurrent = pCsr->pFreeEntry ? pCsr->pFreeEntry : pTab->pFirstEntry;
+    rc = zipfileNext(cur);
+  }
+
+  return rc;
+}
+
+/*
+** xBestIndex callback.
+*/
+static int zipfileBestIndex(
+  sqlite3_vtab *tab,
+  sqlite3_index_info *pIdxInfo
+){
+  int i;
+  int idx = -1;
+  int unusable = 0;
+  (void)tab;
+
+  for(i=0; i<pIdxInfo->nConstraint; i++){
+    const struct sqlite3_index_constraint *pCons = &pIdxInfo->aConstraint[i];
+    if( pCons->iColumn!=ZIPFILE_F_COLUMN_IDX ) continue;
+    if( pCons->usable==0 ){
+      unusable = 1;
+    }else if( pCons->op==SQLITE_INDEX_CONSTRAINT_EQ ){
+      idx = i;
+    }
+  }
+  pIdxInfo->estimatedCost = 1000.0;
+  if( idx>=0 ){
+    pIdxInfo->aConstraintUsage[idx].argvIndex = 1;
+    pIdxInfo->aConstraintUsage[idx].omit = 1;
+    pIdxInfo->idxNum = 1;
+  }else if( unusable ){
+    return SQLITE_CONSTRAINT;
+  }
+  return SQLITE_OK;
+}
+
+static ZipfileEntry *zipfileNewEntry(const char *zPath){
+  ZipfileEntry *pNew;
+  pNew = sqlite3_malloc(sizeof(ZipfileEntry));
+  if( pNew ){
+    memset(pNew, 0, sizeof(ZipfileEntry));
+    pNew->cds.zFile = sqlite3_mprintf("%s", zPath);
+    if( pNew->cds.zFile==0 ){
+      sqlite3_free(pNew);
+      pNew = 0;
+    }
+  }
+  return pNew;
+}
+
+static int zipfileSerializeLFH(ZipfileEntry *pEntry, u8 *aBuf){
+  ZipfileCDS *pCds = &pEntry->cds;
+  u8 *a = aBuf;
+
+  pCds->nExtra = 9;
+
+  /* Write the LFH itself */
+  zipfileWrite32(a, ZIPFILE_SIGNATURE_LFH);
+  zipfileWrite16(a, pCds->iVersionExtract);
+  zipfileWrite16(a, pCds->flags);
+  zipfileWrite16(a, pCds->iCompression);
+  zipfileWrite16(a, pCds->mTime);
+  zipfileWrite16(a, pCds->mDate);
+  zipfileWrite32(a, pCds->crc32);
+  zipfileWrite32(a, pCds->szCompressed);
+  zipfileWrite32(a, pCds->szUncompressed);
+  zipfileWrite16(a, (u16)pCds->nFile);
+  zipfileWrite16(a, pCds->nExtra);
+  assert( a==&aBuf[ZIPFILE_LFH_FIXED_SZ] );
+
+  /* Add the file name */
+  memcpy(a, pCds->zFile, (int)pCds->nFile);
+  a += (int)pCds->nFile;
+
+  /* The "extra" data */
+  zipfileWrite16(a, ZIPFILE_EXTRA_TIMESTAMP);
+  zipfileWrite16(a, 5);
+  *a++ = 0x01;
+  zipfileWrite32(a, pEntry->mUnixTime);
+
+  return a-aBuf;
+}
+
+static int zipfileAppendEntry(
+  ZipfileTab *pTab,
+  ZipfileEntry *pEntry,
+  const u8 *pData,
+  int nData
+){
+  u8 *aBuf = pTab->aBuffer;
+  int nBuf;
+  int rc;
+
+  nBuf = zipfileSerializeLFH(pEntry, aBuf);
+  rc = zipfileAppendData(pTab, aBuf, nBuf);
+  if( rc==SQLITE_OK ){
+    pEntry->iDataOff = pTab->szCurrent;
+    rc = zipfileAppendData(pTab, pData, nData);
+  }
+
+  return rc;
+}
+
+static int zipfileGetMode(
+  sqlite3_value *pVal, 
+  int bIsDir,                     /* If true, default to directory */
+  u32 *pMode,                     /* OUT: Mode value */
+  char **pzErr                    /* OUT: Error message */
+){
+  const char *z = (const char*)sqlite3_value_text(pVal);
+  u32 mode = 0;
+  if( z==0 ){
+    mode = (bIsDir ? (S_IFDIR + 0755) : (S_IFREG + 0644));
+  }else if( z[0]>='0' && z[0]<='9' ){
+    mode = (unsigned int)sqlite3_value_int(pVal);
+  }else{
+    const char zTemplate[11] = "-rwxrwxrwx";
+    int i;
+    if( strlen(z)!=10 ) goto parse_error;
+    switch( z[0] ){
+      case '-': mode |= S_IFREG; break;
+      case 'd': mode |= S_IFDIR; break;
+      case 'l': mode |= S_IFLNK; break;
+      default: goto parse_error;
+    }
+    for(i=1; i<10; i++){
+      if( z[i]==zTemplate[i] ) mode |= 1 << (9-i);
+      else if( z[i]!='-' ) goto parse_error;
+    }
+  }
+  if( ((mode & S_IFDIR)==0)==bIsDir ){
+    /* The "mode" attribute is a directory, but data has been specified.
+    ** Or vice-versa - no data but "mode" is a file or symlink.  */
+    *pzErr = sqlite3_mprintf("zipfile: mode does not match data");
+    return SQLITE_CONSTRAINT;
+  }
+  *pMode = mode;
+  return SQLITE_OK;
+
+ parse_error:
+  *pzErr = sqlite3_mprintf("zipfile: parse error in mode: %s", z);
+  return SQLITE_ERROR;
+}
+
+/*
+** Both (const char*) arguments point to nul-terminated strings. Argument
+** nB is the value of strlen(zB). This function returns 0 if the strings are
+** identical, ignoring any trailing '/' character in either path.  */
+static int zipfileComparePath(const char *zA, const char *zB, int nB){
+  int nA = (int)strlen(zA);
+  if( nA>0 && zA[nA-1]=='/' ) nA--;
+  if( nB>0 && zB[nB-1]=='/' ) nB--;
+  if( nA==nB && memcmp(zA, zB, nA)==0 ) return 0;
+  return 1;
+}
+
+static int zipfileBegin(sqlite3_vtab *pVtab){
+  ZipfileTab *pTab = (ZipfileTab*)pVtab;
+  int rc = SQLITE_OK;
+
+  assert( pTab->pWriteFd==0 );
+  if( pTab->zFile==0 || pTab->zFile[0]==0 ){
+    pTab->base.zErrMsg = sqlite3_mprintf("zipfile: missing filename");
+    return SQLITE_ERROR;
+  }
+
+  /* Open a write fd on the file. Also load the entire central directory
+  ** structure into memory. During the transaction any new file data is 
+  ** appended to the archive file, but the central directory is accumulated
+  ** in main-memory until the transaction is committed.  */
+  pTab->pWriteFd = sqlite3_fopen(pTab->zFile, "ab+");
+  if( pTab->pWriteFd==0 ){
+    pTab->base.zErrMsg = sqlite3_mprintf(
+        "zipfile: failed to open file %s for writing", pTab->zFile
+        );
+    rc = SQLITE_ERROR;
+  }else{
+    fseek(pTab->pWriteFd, 0, SEEK_END);
+    pTab->szCurrent = pTab->szOrig = (i64)ftell(pTab->pWriteFd);
+    rc = zipfileLoadDirectory(pTab, 0, 0);
+  }
+
+  if( rc!=SQLITE_OK ){
+    zipfileCleanupTransaction(pTab);
+  }
+
+  return rc;
+}
+
+/*
+** Return the current time as a 32-bit timestamp in UNIX epoch format (like
+** time(2)).
+*/
+static u32 zipfileTime(void){
+  sqlite3_vfs *pVfs = sqlite3_vfs_find(0);
+  u32 ret;
+  if( pVfs==0 ) return 0;
+  if( pVfs->iVersion>=2 && pVfs->xCurrentTimeInt64 ){
+    i64 ms;
+    pVfs->xCurrentTimeInt64(pVfs, &ms);
+    ret = (u32)((ms/1000) - ((i64)24405875 * 8640));
+  }else{
+    double day;
+    pVfs->xCurrentTime(pVfs, &day);
+    ret = (u32)((day - 2440587.5) * 86400);
+  }
+  return ret;
+}
+
+/*
+** Return a 32-bit timestamp in UNIX epoch format.
+**
+** If the value passed as the only argument is either NULL or an SQL NULL,
+** return the current time. Otherwise, return the value stored in (*pVal)
+** cast to a 32-bit unsigned integer.
+*/
+static u32 zipfileGetTime(sqlite3_value *pVal){
+  if( pVal==0 || sqlite3_value_type(pVal)==SQLITE_NULL ){
+    return zipfileTime();
+  }
+  return (u32)sqlite3_value_int64(pVal);
+}
+
+/*
+** Unless it is NULL, entry pOld is currently part of the pTab->pFirstEntry
+** linked list.  Remove it from the list and free the object.
+*/
+static void zipfileRemoveEntryFromList(ZipfileTab *pTab, ZipfileEntry *pOld){
+  if( pOld ){
+    if( pTab->pFirstEntry==pOld ){
+      pTab->pFirstEntry = pOld->pNext;
+      if( pTab->pLastEntry==pOld ) pTab->pLastEntry = 0;
+    }else{
+      ZipfileEntry *p;
+      for(p=pTab->pFirstEntry; p; p=p->pNext){
+        if( p->pNext==pOld ){
+          p->pNext = pOld->pNext;
+          if( pTab->pLastEntry==pOld ) pTab->pLastEntry = p;
+          break;
+        }
+      }
+    }
+    zipfileEntryFree(pOld);
+  }
+}
+
+/*
+** xUpdate method.
+*/
+static int zipfileUpdate(
+  sqlite3_vtab *pVtab, 
+  int nVal, 
+  sqlite3_value **apVal, 
+  sqlite_int64 *pRowid
+){
+  ZipfileTab *pTab = (ZipfileTab*)pVtab;
+  int rc = SQLITE_OK;             /* Return Code */
+  ZipfileEntry *pNew = 0;         /* New in-memory CDS entry */
+
+  u32 mode = 0;                   /* Mode for new entry */
+  u32 mTime = 0;                  /* Modification time for new entry */
+  i64 sz = 0;                     /* Uncompressed size */
+  const char *zPath = 0;          /* Path for new entry */
+  int nPath = 0;                  /* strlen(zPath) */
+  const u8 *pData = 0;            /* Pointer to buffer containing content */
+  int nData = 0;                  /* Size of pData buffer in bytes */
+  int iMethod = 0;                /* Compression method for new entry */
+  u8 *pFree = 0;                  /* Free this */
+  char *zFree = 0;                /* Also free this */
+  ZipfileEntry *pOld = 0;
+  ZipfileEntry *pOld2 = 0;
+  int bUpdate = 0;                /* True for an update that modifies "name" */
+  int bIsDir = 0;
+  u32 iCrc32 = 0;
+
+  (void)pRowid;
+
+  if( pTab->pWriteFd==0 ){
+    rc = zipfileBegin(pVtab);
+    if( rc!=SQLITE_OK ) return rc;
+  }
+
+  /* If this is a DELETE or UPDATE, find the archive entry to delete. */
+  if( sqlite3_value_type(apVal[0])!=SQLITE_NULL ){
+    const char *zDelete = (const char*)sqlite3_value_text(apVal[0]);
+    int nDelete = (int)strlen(zDelete);
+    if( nVal>1 ){
+      const char *zUpdate = (const char*)sqlite3_value_text(apVal[1]);
+      if( zUpdate && zipfileComparePath(zUpdate, zDelete, nDelete)!=0 ){
+        bUpdate = 1;
+      }
+    }
+    for(pOld=pTab->pFirstEntry; 1; pOld=pOld->pNext){
+      if( zipfileComparePath(pOld->cds.zFile, zDelete, nDelete)==0 ){
+        break;
+      }
+      assert( pOld->pNext );
+    }
+  }
+
+  if( nVal>1 ){
+    /* Check that "sz" and "rawdata" are both NULL: */
+    if( sqlite3_value_type(apVal[5])!=SQLITE_NULL ){
+      zipfileTableErr(pTab, "sz must be NULL");
+      rc = SQLITE_CONSTRAINT;
+    }
+    if( sqlite3_value_type(apVal[6])!=SQLITE_NULL ){
+      zipfileTableErr(pTab, "rawdata must be NULL"); 
+      rc = SQLITE_CONSTRAINT;
+    }
+
+    if( rc==SQLITE_OK ){
+      if( sqlite3_value_type(apVal[7])==SQLITE_NULL ){
+        /* data=NULL. A directory */
+        bIsDir = 1;
+      }else{
+        /* Value specified for "data", and possibly "method". This must be
+        ** a regular file or a symlink. */
+        const u8 *aIn = sqlite3_value_blob(apVal[7]);
+        int nIn = sqlite3_value_bytes(apVal[7]);
+        int bAuto = sqlite3_value_type(apVal[8])==SQLITE_NULL;
+
+        iMethod = sqlite3_value_int(apVal[8]);
+        sz = nIn;
+        pData = aIn;
+        nData = nIn;
+        if( iMethod!=0 && iMethod!=8 ){
+          zipfileTableErr(pTab, "unknown compression method: %d", iMethod);
+          rc = SQLITE_CONSTRAINT;
+        }else{
+          if( bAuto || iMethod ){
+            int nCmp;
+            rc = zipfileDeflate(aIn, nIn, &pFree, &nCmp, &pTab->base.zErrMsg);
+            if( rc==SQLITE_OK ){
+              if( iMethod || nCmp<nIn ){
+                iMethod = 8;
+                pData = pFree;
+                nData = nCmp;
+              }
+            }
+          }
+          iCrc32 = crc32(0, aIn, nIn);
+        }
+      }
+    }
+
+    if( rc==SQLITE_OK ){
+      rc = zipfileGetMode(apVal[3], bIsDir, &mode, &pTab->base.zErrMsg);
+    }
+
+    if( rc==SQLITE_OK ){
+      zPath = (const char*)sqlite3_value_text(apVal[2]);
+      if( zPath==0 ) zPath = "";
+      nPath = (int)strlen(zPath);
+      mTime = zipfileGetTime(apVal[4]);
+    }
+
+    if( rc==SQLITE_OK && bIsDir ){
+      /* For a directory, check that the last character in the path is a
+      ** '/'. This appears to be required for compatibility with info-zip
+      ** (the unzip command on unix). It does not create directories
+      ** otherwise.  */
+      if( nPath<=0 || zPath[nPath-1]!='/' ){
+        zFree = sqlite3_mprintf("%s/", zPath);
+        zPath = (const char*)zFree;
+        if( zFree==0 ){
+          rc = SQLITE_NOMEM;
+          nPath = 0;
+        }else{
+          nPath = (int)strlen(zPath);
+        }
+      }
+    }
+
+    /* Check that we're not inserting a duplicate entry -OR- updating an
+    ** entry with a path, thereby making it into a duplicate. */
+    if( (pOld==0 || bUpdate) && rc==SQLITE_OK ){
+      ZipfileEntry *p;
+      for(p=pTab->pFirstEntry; p; p=p->pNext){
+        if( zipfileComparePath(p->cds.zFile, zPath, nPath)==0 ){
+          switch( sqlite3_vtab_on_conflict(pTab->db) ){
+            case SQLITE_IGNORE: {
+              goto zipfile_update_done;
+            }
+            case SQLITE_REPLACE: {
+              pOld2 = p;
+              break;
+            }
+            default: {
+              zipfileTableErr(pTab, "duplicate name: \"%s\"", zPath);
+              rc = SQLITE_CONSTRAINT;
+              break;
+            }
+          }
+          break;
+        }
+      }
+    }
+
+    if( rc==SQLITE_OK ){
+      /* Create the new CDS record. */
+      pNew = zipfileNewEntry(zPath);
+      if( pNew==0 ){
+        rc = SQLITE_NOMEM;
+      }else{
+        pNew->cds.iVersionMadeBy = ZIPFILE_NEWENTRY_MADEBY;
+        pNew->cds.iVersionExtract = ZIPFILE_NEWENTRY_REQUIRED;
+        pNew->cds.flags = ZIPFILE_NEWENTRY_FLAGS;
+        pNew->cds.iCompression = (u16)iMethod;
+        zipfileMtimeToDos(&pNew->cds, mTime);
+        pNew->cds.crc32 = iCrc32;
+        pNew->cds.szCompressed = nData;
+        pNew->cds.szUncompressed = (u32)sz;
+        pNew->cds.iExternalAttr = (mode<<16);
+        pNew->cds.iOffset = (u32)pTab->szCurrent;
+        pNew->cds.nFile = (u16)nPath;
+        pNew->mUnixTime = (u32)mTime;
+        rc = zipfileAppendEntry(pTab, pNew, pData, nData);
+        zipfileAddEntry(pTab, pOld, pNew);
+      }
+    }
+  }
+
+  if( rc==SQLITE_OK && (pOld || pOld2) ){
+    ZipfileCsr *pCsr;
+    for(pCsr=pTab->pCsrList; pCsr; pCsr=pCsr->pCsrNext){
+      if( pCsr->pCurrent && (pCsr->pCurrent==pOld || pCsr->pCurrent==pOld2) ){
+        pCsr->pCurrent = pCsr->pCurrent->pNext;
+        pCsr->bNoop = 1;
+      }
+    }
+
+    zipfileRemoveEntryFromList(pTab, pOld);
+    zipfileRemoveEntryFromList(pTab, pOld2);
+  }
+
+zipfile_update_done:
+  sqlite3_free(pFree);
+  sqlite3_free(zFree);
+  return rc;
+}
+
+static int zipfileSerializeEOCD(ZipfileEOCD *p, u8 *aBuf){
+  u8 *a = aBuf;
+  zipfileWrite32(a, ZIPFILE_SIGNATURE_EOCD);
+  zipfileWrite16(a, p->iDisk);
+  zipfileWrite16(a, p->iFirstDisk);
+  zipfileWrite16(a, p->nEntry);
+  zipfileWrite16(a, p->nEntryTotal);
+  zipfileWrite32(a, p->nSize);
+  zipfileWrite32(a, p->iOffset);
+  zipfileWrite16(a, 0);        /* Size of trailing comment in bytes*/
+
+  return a-aBuf;
+}
+
+static int zipfileAppendEOCD(ZipfileTab *pTab, ZipfileEOCD *p){
+  int nBuf = zipfileSerializeEOCD(p, pTab->aBuffer);
+  assert( nBuf==ZIPFILE_EOCD_FIXED_SZ );
+  return zipfileAppendData(pTab, pTab->aBuffer, nBuf);
+}
+
+/*
+** Serialize the CDS structure into buffer aBuf[]. Return the number
+** of bytes written.
+*/
+static int zipfileSerializeCDS(ZipfileEntry *pEntry, u8 *aBuf){
+  u8 *a = aBuf;
+  ZipfileCDS *pCDS = &pEntry->cds;
+
+  if( pEntry->aExtra==0 ){
+    pCDS->nExtra = 9;
+  }
+
+  zipfileWrite32(a, ZIPFILE_SIGNATURE_CDS);
+  zipfileWrite16(a, pCDS->iVersionMadeBy);
+  zipfileWrite16(a, pCDS->iVersionExtract);
+  zipfileWrite16(a, pCDS->flags);
+  zipfileWrite16(a, pCDS->iCompression);
+  zipfileWrite16(a, pCDS->mTime);
+  zipfileWrite16(a, pCDS->mDate);
+  zipfileWrite32(a, pCDS->crc32);
+  zipfileWrite32(a, pCDS->szCompressed);
+  zipfileWrite32(a, pCDS->szUncompressed);
+  assert( a==&aBuf[ZIPFILE_CDS_NFILE_OFF] );
+  zipfileWrite16(a, pCDS->nFile);
+  zipfileWrite16(a, pCDS->nExtra);
+  zipfileWrite16(a, pCDS->nComment);
+  zipfileWrite16(a, pCDS->iDiskStart);
+  zipfileWrite16(a, pCDS->iInternalAttr);
+  zipfileWrite32(a, pCDS->iExternalAttr);
+  zipfileWrite32(a, pCDS->iOffset);
+
+  memcpy(a, pCDS->zFile, pCDS->nFile);
+  a += pCDS->nFile;
+
+  if( pEntry->aExtra ){
+    int n = (int)pCDS->nExtra + (int)pCDS->nComment;
+    memcpy(a, pEntry->aExtra, n);
+    a += n;
+  }else{
+    assert( pCDS->nExtra==9 );
+    zipfileWrite16(a, ZIPFILE_EXTRA_TIMESTAMP);
+    zipfileWrite16(a, 5);
+    *a++ = 0x01;
+    zipfileWrite32(a, pEntry->mUnixTime);
+  }
+
+  return a-aBuf;
+}
+
+static int zipfileCommit(sqlite3_vtab *pVtab){
+  ZipfileTab *pTab = (ZipfileTab*)pVtab;
+  int rc = SQLITE_OK;
+  if( pTab->pWriteFd ){
+    i64 iOffset = pTab->szCurrent;
+    ZipfileEntry *p;
+    ZipfileEOCD eocd;
+    int nEntry = 0;
+
+    /* Write out all entries */
+    for(p=pTab->pFirstEntry; rc==SQLITE_OK && p; p=p->pNext){
+      int n = zipfileSerializeCDS(p, pTab->aBuffer);
+      rc = zipfileAppendData(pTab, pTab->aBuffer, n);
+      nEntry++;
+    }
+
+    /* Write out the EOCD record */
+    eocd.iDisk = 0;
+    eocd.iFirstDisk = 0;
+    eocd.nEntry = (u16)nEntry;
+    eocd.nEntryTotal = (u16)nEntry;
+    eocd.nSize = (u32)(pTab->szCurrent - iOffset);
+    eocd.iOffset = (u32)iOffset;
+    rc = zipfileAppendEOCD(pTab, &eocd);
+
+    zipfileCleanupTransaction(pTab);
+  }
+  return rc;
+}
+
+static int zipfileRollback(sqlite3_vtab *pVtab){
+  return zipfileCommit(pVtab);
+}
+
+static ZipfileCsr *zipfileFindCursor(ZipfileTab *pTab, i64 iId){
+  ZipfileCsr *pCsr;
+  for(pCsr=pTab->pCsrList; pCsr; pCsr=pCsr->pCsrNext){
+    if( iId==pCsr->iId ) break;
+  }
+  return pCsr;
+}
+
+static void zipfileFunctionCds(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  ZipfileCsr *pCsr;
+  ZipfileTab *pTab = (ZipfileTab*)sqlite3_user_data(context);
+  assert( argc>0 );
+
+  pCsr = zipfileFindCursor(pTab, sqlite3_value_int64(argv[0]));
+  if( pCsr ){
+    ZipfileCDS *p = &pCsr->pCurrent->cds;
+    char *zRes = sqlite3_mprintf("{"
+        "\"version-made-by\" : %u, "
+        "\"version-to-extract\" : %u, "
+        "\"flags\" : %u, "
+        "\"compression\" : %u, "
+        "\"time\" : %u, "
+        "\"date\" : %u, "
+        "\"crc32\" : %u, "
+        "\"compressed-size\" : %u, "
+        "\"uncompressed-size\" : %u, "
+        "\"file-name-length\" : %u, "
+        "\"extra-field-length\" : %u, "
+        "\"file-comment-length\" : %u, "
+        "\"disk-number-start\" : %u, "
+        "\"internal-attr\" : %u, "
+        "\"external-attr\" : %u, "
+        "\"offset\" : %u }",
+        (u32)p->iVersionMadeBy, (u32)p->iVersionExtract,
+        (u32)p->flags, (u32)p->iCompression,
+        (u32)p->mTime, (u32)p->mDate,
+        (u32)p->crc32, (u32)p->szCompressed,
+        (u32)p->szUncompressed, (u32)p->nFile,
+        (u32)p->nExtra, (u32)p->nComment,
+        (u32)p->iDiskStart, (u32)p->iInternalAttr,
+        (u32)p->iExternalAttr, (u32)p->iOffset
+    );
+
+    if( zRes==0 ){
+      sqlite3_result_error_nomem(context);
+    }else{
+      sqlite3_result_text(context, zRes, -1, SQLITE_TRANSIENT);
+      sqlite3_free(zRes);
+    }
+  }
+}
+
+/*
+** xFindFunction method.
+*/
+static int zipfileFindFunction(
+  sqlite3_vtab *pVtab,            /* Virtual table handle */
+  int nArg,                       /* Number of SQL function arguments */
+  const char *zName,              /* Name of SQL function */
+  void (**pxFunc)(sqlite3_context*,int,sqlite3_value**), /* OUT: Result */
+  void **ppArg                    /* OUT: User data for *pxFunc */
+){
+  (void)nArg;
+  if( sqlite3_stricmp("zipfile_cds", zName)==0 ){
+    *pxFunc = zipfileFunctionCds;
+    *ppArg = (void*)pVtab;
+    return 1;
+  }
+  return 0;
+}
+
+typedef struct ZipfileBuffer ZipfileBuffer;
+struct ZipfileBuffer {
+  u8 *a;                          /* Pointer to buffer */
+  int n;                          /* Size of buffer in bytes */
+  int nAlloc;                     /* Byte allocated at a[] */
+};
+
+typedef struct ZipfileCtx ZipfileCtx;
+struct ZipfileCtx {
+  int nEntry;
+  ZipfileBuffer body;
+  ZipfileBuffer cds;
+};
+
+static int zipfileBufferGrow(ZipfileBuffer *pBuf, int nByte){
+  if( pBuf->n+nByte>pBuf->nAlloc ){
+    u8 *aNew;
+    sqlite3_int64 nNew = pBuf->n ? pBuf->n*2 : 512;
+    int nReq = pBuf->n + nByte;
+
+    while( nNew<nReq ) nNew = nNew*2;
+    aNew = sqlite3_realloc64(pBuf->a, nNew);
+    if( aNew==0 ) return SQLITE_NOMEM;
+    pBuf->a = aNew;
+    pBuf->nAlloc = (int)nNew;
+  }
+  return SQLITE_OK;
+}
+
+/*
+** xStep() callback for the zipfile() aggregate. This can be called in
+** any of the following ways:
+**
+**   SELECT zipfile(name,data) ...
+**   SELECT zipfile(name,mode,mtime,data) ...
+**   SELECT zipfile(name,mode,mtime,data,method) ...
+*/
+static void zipfileStep(sqlite3_context *pCtx, int nVal, sqlite3_value **apVal){
+  ZipfileCtx *p;                  /* Aggregate function context */
+  ZipfileEntry e;                 /* New entry to add to zip archive */
+
+  sqlite3_value *pName = 0;
+  sqlite3_value *pMode = 0;
+  sqlite3_value *pMtime = 0;
+  sqlite3_value *pData = 0;
+  sqlite3_value *pMethod = 0;
+
+  int bIsDir = 0;
+  u32 mode;
+  int rc = SQLITE_OK;
+  char *zErr = 0;
+
+  int iMethod = -1;               /* Compression method to use (0 or 8) */
+
+  const u8 *aData = 0;            /* Possibly compressed data for new entry */
+  int nData = 0;                  /* Size of aData[] in bytes */
+  int szUncompressed = 0;         /* Size of data before compression */
+  u8 *aFree = 0;                  /* Free this before returning */
+  u32 iCrc32 = 0;                 /* crc32 of uncompressed data */
+
+  char *zName = 0;                /* Path (name) of new entry */
+  int nName = 0;                  /* Size of zName in bytes */
+  char *zFree = 0;                /* Free this before returning */
+  int nByte;
+
+  memset(&e, 0, sizeof(e));
+  p = (ZipfileCtx*)sqlite3_aggregate_context(pCtx, sizeof(ZipfileCtx));
+  if( p==0 ) return;
+
+  /* Martial the arguments into stack variables */
+  if( nVal!=2 && nVal!=4 && nVal!=5 ){
+    zErr = sqlite3_mprintf("wrong number of arguments to function zipfile()");
+    rc = SQLITE_ERROR;
+    goto zipfile_step_out;
+  }
+  pName = apVal[0];
+  if( nVal==2 ){
+    pData = apVal[1];
+  }else{
+    pMode = apVal[1];
+    pMtime = apVal[2];
+    pData = apVal[3];
+    if( nVal==5 ){
+      pMethod = apVal[4];
+    }
+  }
+
+  /* Check that the 'name' parameter looks ok. */
+  zName = (char*)sqlite3_value_text(pName);
+  nName = sqlite3_value_bytes(pName);
+  if( zName==0 ){
+    zErr = sqlite3_mprintf("first argument to zipfile() must be non-NULL");
+    rc = SQLITE_ERROR;
+    goto zipfile_step_out;
+  }
+
+  /* Inspect the 'method' parameter. This must be either 0 (store), 8 (use
+  ** deflate compression) or NULL (choose automatically).  */
+  if( pMethod && SQLITE_NULL!=sqlite3_value_type(pMethod) ){
+    iMethod = (int)sqlite3_value_int64(pMethod);
+    if( iMethod!=0 && iMethod!=8 ){
+      zErr = sqlite3_mprintf("illegal method value: %d", iMethod);
+      rc = SQLITE_ERROR;
+      goto zipfile_step_out;
+    }
+  }
+
+  /* Now inspect the data. If this is NULL, then the new entry must be a
+  ** directory.  Otherwise, figure out whether or not the data should
+  ** be deflated or simply stored in the zip archive. */
+  if( sqlite3_value_type(pData)==SQLITE_NULL ){
+    bIsDir = 1;
+    iMethod = 0;
+  }else{
+    aData = sqlite3_value_blob(pData);
+    szUncompressed = nData = sqlite3_value_bytes(pData);
+    iCrc32 = crc32(0, aData, nData);
+    if( iMethod<0 || iMethod==8 ){
+      int nOut = 0;
+      rc = zipfileDeflate(aData, nData, &aFree, &nOut, &zErr);
+      if( rc!=SQLITE_OK ){
+        goto zipfile_step_out;
+      }
+      if( iMethod==8 || nOut<nData ){
+        aData = aFree;
+        nData = nOut;
+        iMethod = 8;
+      }else{
+        iMethod = 0;
+      }
+    }
+  }
+
+  /* Decode the "mode" argument. */
+  rc = zipfileGetMode(pMode, bIsDir, &mode, &zErr);
+  if( rc ) goto zipfile_step_out;
+
+  /* Decode the "mtime" argument. */
+  e.mUnixTime = zipfileGetTime(pMtime);
+
+  /* If this is a directory entry, ensure that there is exactly one '/'
+  ** at the end of the path. Or, if this is not a directory and the path
+  ** ends in '/' it is an error. */
+  if( bIsDir==0 ){
+    if( nName>0 && zName[nName-1]=='/' ){
+      zErr = sqlite3_mprintf("non-directory name must not end with /");
+      rc = SQLITE_ERROR;
+      goto zipfile_step_out;
+    }
+  }else{
+    if( nName==0 || zName[nName-1]!='/' ){
+      zName = zFree = sqlite3_mprintf("%s/", zName);
+      if( zName==0 ){
+        rc = SQLITE_NOMEM;
+        goto zipfile_step_out;
+      }
+      nName = (int)strlen(zName);
+    }else{
+      while( nName>1 && zName[nName-2]=='/' ) nName--;
+    }
+  }
+
+  /* Assemble the ZipfileEntry object for the new zip archive entry */
+  e.cds.iVersionMadeBy = ZIPFILE_NEWENTRY_MADEBY;
+  e.cds.iVersionExtract = ZIPFILE_NEWENTRY_REQUIRED;
+  e.cds.flags = ZIPFILE_NEWENTRY_FLAGS;
+  e.cds.iCompression = (u16)iMethod;
+  zipfileMtimeToDos(&e.cds, (u32)e.mUnixTime);
+  e.cds.crc32 = iCrc32;
+  e.cds.szCompressed = nData;
+  e.cds.szUncompressed = szUncompressed;
+  e.cds.iExternalAttr = (mode<<16);
+  e.cds.iOffset = p->body.n;
+  e.cds.nFile = (u16)nName;
+  e.cds.zFile = zName;
+
+  /* Append the LFH to the body of the new archive */
+  nByte = ZIPFILE_LFH_FIXED_SZ + e.cds.nFile + 9;
+  if( (rc = zipfileBufferGrow(&p->body, nByte)) ) goto zipfile_step_out;
+  p->body.n += zipfileSerializeLFH(&e, &p->body.a[p->body.n]);
+
+  /* Append the data to the body of the new archive */
+  if( nData>0 ){
+    if( (rc = zipfileBufferGrow(&p->body, nData)) ) goto zipfile_step_out;
+    memcpy(&p->body.a[p->body.n], aData, nData);
+    p->body.n += nData;
+  }
+
+  /* Append the CDS record to the directory of the new archive */
+  nByte = ZIPFILE_CDS_FIXED_SZ + e.cds.nFile + 9;
+  if( (rc = zipfileBufferGrow(&p->cds, nByte)) ) goto zipfile_step_out;
+  p->cds.n += zipfileSerializeCDS(&e, &p->cds.a[p->cds.n]);
+
+  /* Increment the count of entries in the archive */
+  p->nEntry++;
+
+ zipfile_step_out:
+  sqlite3_free(aFree);
+  sqlite3_free(zFree);
+  if( rc ){
+    if( zErr ){
+      sqlite3_result_error(pCtx, zErr, -1);
+    }else{
+      sqlite3_result_error_code(pCtx, rc);
+    }
+  }
+  sqlite3_free(zErr);
+}
+
+/*
+** xFinalize() callback for zipfile aggregate function.
+*/
+static void zipfileFinal(sqlite3_context *pCtx){
+  ZipfileCtx *p;
+  ZipfileEOCD eocd;
+  sqlite3_int64 nZip;
+  u8 *aZip;
+
+  p = (ZipfileCtx*)sqlite3_aggregate_context(pCtx, sizeof(ZipfileCtx));
+  if( p==0 ) return;
+  if( p->nEntry>0 ){
+    memset(&eocd, 0, sizeof(eocd));
+    eocd.nEntry = (u16)p->nEntry;
+    eocd.nEntryTotal = (u16)p->nEntry;
+    eocd.nSize = p->cds.n;
+    eocd.iOffset = p->body.n;
+
+    nZip = p->body.n + p->cds.n + ZIPFILE_EOCD_FIXED_SZ;
+    aZip = (u8*)sqlite3_malloc64(nZip);
+    if( aZip==0 ){
+      sqlite3_result_error_nomem(pCtx);
+    }else{
+      memcpy(aZip, p->body.a, p->body.n);
+      memcpy(&aZip[p->body.n], p->cds.a, p->cds.n);
+      zipfileSerializeEOCD(&eocd, &aZip[p->body.n + p->cds.n]);
+      sqlite3_result_blob(pCtx, aZip, (int)nZip, zipfileFree);
+    }
+  }
+
+  sqlite3_free(p->body.a);
+  sqlite3_free(p->cds.a);
+}
+
+
+/*
+** Register the "zipfile" virtual table.
+*/
+static int zipfileRegister(sqlite3 *db){
+  static sqlite3_module zipfileModule = {
+    1,                         /* iVersion */
+    zipfileConnect,            /* xCreate */
+    zipfileConnect,            /* xConnect */
+    zipfileBestIndex,          /* xBestIndex */
+    zipfileDisconnect,         /* xDisconnect */
+    zipfileDisconnect,         /* xDestroy */
+    zipfileOpen,               /* xOpen - open a cursor */
+    zipfileClose,              /* xClose - close a cursor */
+    zipfileFilter,             /* xFilter - configure scan constraints */
+    zipfileNext,               /* xNext - advance a cursor */
+    zipfileEof,                /* xEof - check for end of scan */
+    zipfileColumn,             /* xColumn - read data */
+    0,                         /* xRowid - read data */
+    zipfileUpdate,             /* xUpdate */
+    zipfileBegin,              /* xBegin */
+    0,                         /* xSync */
+    zipfileCommit,             /* xCommit */
+    zipfileRollback,           /* xRollback */
+    zipfileFindFunction,       /* xFindMethod */
+    0,                         /* xRename */
+    0,                         /* xSavepoint */
+    0,                         /* xRelease */
+    0,                         /* xRollback */
+    0,                         /* xShadowName */
+    0                          /* xIntegrity */
+  };
+
+  int rc = sqlite3_create_module(db, "zipfile"  , &zipfileModule, 0);
+  if( rc==SQLITE_OK ) rc = sqlite3_overload_function(db, "zipfile_cds", -1);
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_function(db, "zipfile", -1, SQLITE_UTF8, 0, 0, 
+        zipfileStep, zipfileFinal
+    );
+  }
+  assert( sizeof(i64)==8 );
+  assert( sizeof(u32)==4 );
+  assert( sizeof(u16)==2 );
+  assert( sizeof(u8)==1 );
+  return rc;
+}
+#else         /* SQLITE_OMIT_VIRTUALTABLE */
+# define zipfileRegister(x) SQLITE_OK
+#endif
+
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_zipfile_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  SQLITE_EXTENSION_INIT2(pApi);
+  (void)pzErrMsg;  /* Unused parameter */
+  return zipfileRegister(db);
+}
diff --git a/ext/misc/zorder.c b/ext/misc/zorder.c
new file mode 100644
index 0000000000000000000000000000000000000000..c385d3c3c3968b6e83d4e91629196d853741a6b8
--- /dev/null
+++ b/ext/misc/zorder.c
@@ -0,0 +1,102 @@
+/*
+** 2018-02-09
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** SQL functions for z-order (Morton code) transformations.
+**
+**      zorder(X0,X0,..,xN)      Generate an N+1 dimension Morton code
+**
+**      unzorder(Z,N,I)          Extract the I-th dimension from N-dimensional
+**                               Morton code Z.
+*/
+#include "sqlite3ext.h"
+SQLITE_EXTENSION_INIT1
+#include <assert.h>
+#include <string.h>
+
+/*
+** Functions:     zorder(X0,X1,....)
+**
+** Convert integers X0, X1, ... into morton code.
+**
+** The output is a signed 64-bit integer.  If any argument is too large,
+** an error is thrown.
+*/
+static void zorderFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  sqlite3_int64 z, x[63];
+  int i, j;
+  z = 0;
+  for(i=0; i<argc; i++){
+    x[i] = sqlite3_value_int64(argv[i]);
+  }
+  if( argc>0 ){
+    for(i=0; i<63; i++){
+      j = i%argc;
+      z |= (x[j]&1)<<i;
+      x[j] >>= 1;
+    }
+  }
+  sqlite3_result_int64(context, z);
+  for(i=0; i<argc; i++){
+    if( x[i] ){
+      sqlite3_result_error(context, "parameter too large", -1);
+    }
+  }
+}
+
+
+/*
+** Functions:     unzorder(Z,N,I)
+**
+** Assuming that Z is an N-dimensional Morton code, extract the I-th
+** dimension.
+*/
+static void unzorderFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  sqlite3_int64 z, n, i, x;
+  int j, k;
+  z = sqlite3_value_int64(argv[0]);
+  n = sqlite3_value_int64(argv[1]);
+  i = sqlite3_value_int64(argv[2]);
+  x = 0;
+  for(k=0, j=i; j<63; j+=n, k++){
+    x |= ((z>>j)&1)<<k;
+  }
+  sqlite3_result_int64(context, x);
+}
+
+
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_zorder_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  int rc = SQLITE_OK;
+  SQLITE_EXTENSION_INIT2(pApi);
+  (void)pzErrMsg;  /* Unused parameter */
+  rc = sqlite3_create_function(db, "zorder", -1, SQLITE_UTF8, 0,
+                               zorderFunc, 0, 0);
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_function(db, "unzorder", 3, SQLITE_UTF8, 0,
+                               unzorderFunc, 0, 0);
+  }
+  return rc;
+}
diff --git a/ext/rbu/rbu.c b/ext/rbu/rbu.c
new file mode 100644
index 0000000000000000000000000000000000000000..7a24db214e6347c9263d363302b9cac8556bc108
--- /dev/null
+++ b/ext/rbu/rbu.c
@@ -0,0 +1,195 @@
+/*
+** 2014 August 30
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** This file contains a command-line application that uses the RBU 
+** extension. See the usage() function below for an explanation.
+*/
+
+#include "sqlite3rbu.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+/*
+** Print a usage message and exit.
+*/
+void usage(const char *zArgv0){
+  fprintf(stderr, 
+"Usage: %s ?OPTIONS? TARGET-DB RBU-DB\n"
+"\n"
+"Where options are:\n"
+"\n"
+"    -step NSTEP\n"
+"    -statstep NSTATSTEP\n"
+"    -vacuum\n"
+"    -presql SQL\n"
+"\n"
+"  If the -vacuum switch is not present, argument RBU-DB must be an RBU\n"
+"  database containing an update suitable for target database TARGET-DB.\n"
+"  Or, if -vacuum is specified, then TARGET-DB is a database to vacuum using\n"
+"  RBU, and RBU-DB is used as the state database for the vacuum (refer to\n"
+"  API documentation for details).\n"
+"\n"
+"  If NSTEP is set to less than or equal to zero (the default value), this \n"
+"  program attempts to perform the entire update or vacuum operation before\n"
+"  exiting\n"
+"\n"
+"  If NSTEP is greater than zero, then a maximum of NSTEP calls are made\n"
+"  to sqlite3rbu_step(). If the RBU update has not been completely applied\n"
+"  after the NSTEP'th call is made, the state is saved in the database RBU-DB\n"
+"  and the program exits. Subsequent invocations of this (or any other RBU)\n"
+"  application will use this state to resume applying the RBU update to the\n"
+"  target db.\n"
+"\n"
+, zArgv0);
+  exit(1);
+}
+
+void report_default_vfs(){
+  sqlite3_vfs *pVfs = sqlite3_vfs_find(0);
+  fprintf(stdout, "default vfs is \"%s\"\n", pVfs ? pVfs->zName : "NULL");
+}
+
+void report_rbu_vfs(sqlite3rbu *pRbu){
+  sqlite3 *db = sqlite3rbu_db(pRbu, 0);
+  if( db ){
+    char *zName = 0;
+    sqlite3_file_control(db, "main", SQLITE_FCNTL_VFSNAME, &zName);
+    if( zName ){
+      fprintf(stdout, "using vfs \"%s\"\n", zName);
+    }else{
+      fprintf(stdout, "vfs name not available\n");
+    }
+    sqlite3_free(zName);
+  }
+}
+
+int main(int argc, char **argv){
+  int i;
+  const char *zTarget;            /* Target database to apply RBU to */
+  const char *zRbu;               /* Database containing RBU */
+  char zBuf[200];                 /* Buffer for printf() */
+  char *zErrmsg = 0;              /* Error message, if any */
+  sqlite3rbu *pRbu;               /* RBU handle */
+  int nStep = 0;                  /* Maximum number of step() calls */
+  int nStatStep = 0;              /* Report stats after this many step calls */
+  int bVacuum = 0;
+  const char *zPreSql = 0;
+  int rc = SQLITE_OK;
+  sqlite3_int64 nProgress = 0;
+  int nArgc = argc-2;
+
+  if( argc<3 ) usage(argv[0]);
+  for(i=1; i<nArgc; i++){
+    const char *zArg = argv[i];
+    int nArg = strlen(zArg);
+    if( nArg>1 && nArg<=8 && 0==memcmp(zArg, "-vacuum", nArg) ){
+      bVacuum = 1;
+    }else if( nArg>1 && nArg<=7 
+           && 0==memcmp(zArg, "-presql", nArg) && i<nArg-1 ){
+      i++;
+      zPreSql = argv[i];
+    }else if( nArg>1 && nArg<=5 && 0==memcmp(zArg, "-step", nArg) && i<nArg-1 ){
+      i++;
+      nStep = atoi(argv[i]);
+    }else if( nArg>1 && nArg<=9 
+           && 0==memcmp(zArg, "-statstep", nArg) && i<nArg-1 
+    ){
+      i++;
+      nStatStep = atoi(argv[i]);
+    }else{
+      usage(argv[0]);
+    }
+  }
+
+  zTarget = argv[argc-2];
+  zRbu = argv[argc-1];
+
+  report_default_vfs();
+
+  /* Open an RBU handle. A vacuum handle if -vacuum was specified, or a
+  ** regular RBU update handle otherwise.  */
+  if( bVacuum ){
+    pRbu = sqlite3rbu_vacuum(zTarget, zRbu);
+  }else{
+    pRbu = sqlite3rbu_open(zTarget, zRbu, 0);
+  }
+  report_rbu_vfs(pRbu);
+
+  if( zPreSql && pRbu ){
+    sqlite3 *dbMain = sqlite3rbu_db(pRbu, 0);
+    rc = sqlite3_exec(dbMain, zPreSql, 0, 0, 0);
+    if( rc==SQLITE_OK ){
+      sqlite3 *dbRbu = sqlite3rbu_db(pRbu, 1);
+      rc = sqlite3_exec(dbRbu, zPreSql, 0, 0, 0);
+    }
+  }
+
+  /* If nStep is less than or equal to zero, call
+  ** sqlite3rbu_step() until either the RBU has been completely applied
+  ** or an error occurs. Or, if nStep is greater than zero, call
+  ** sqlite3rbu_step() a maximum of nStep times.  */
+  if( rc==SQLITE_OK ){
+    for(i=0; (nStep<=0 || i<nStep) && sqlite3rbu_step(pRbu)==SQLITE_OK; i++){
+      if( nStatStep>0 && (i % nStatStep)==0 ){
+        sqlite3_int64 nUsed;
+        sqlite3_int64 nHighwater;
+        sqlite3_status64(SQLITE_STATUS_MEMORY_USED, &nUsed, &nHighwater, 0);
+        fprintf(stdout, "memory used=%lld highwater=%lld", nUsed, nHighwater);
+        if( bVacuum==0 ){
+          int one;
+          int two;
+          sqlite3rbu_bp_progress(pRbu, &one, &two);
+          fprintf(stdout, "  progress=%d/%d\n", one, two);
+        }else{
+          fprintf(stdout, "\n");
+        }
+        fflush(stdout);
+      }
+    }
+    nProgress = sqlite3rbu_progress(pRbu);
+    rc = sqlite3rbu_close(pRbu, &zErrmsg);
+  }
+
+  /* Let the user know what happened. */
+  switch( rc ){
+    case SQLITE_OK:
+      sqlite3_snprintf(sizeof(zBuf), zBuf,
+          "SQLITE_OK: rbu update incomplete (%lld operations so far)\n",
+          nProgress
+      );
+      fprintf(stdout, "%s", zBuf);
+      break;
+
+    case SQLITE_DONE:
+      sqlite3_snprintf(sizeof(zBuf), zBuf,
+          "SQLITE_DONE: rbu update completed (%lld operations)\n",
+          nProgress
+      );
+      fprintf(stdout, "%s", zBuf);
+      break;
+
+    default:
+      fprintf(stderr, "error=%d: %s\n", rc, zErrmsg);
+      break;
+  }
+
+  if( nStatStep>0 ){
+    sqlite3_int64 nUsed;
+    sqlite3_int64 nHighwater;
+    sqlite3_status64(SQLITE_STATUS_MEMORY_USED, &nUsed, &nHighwater, 0);
+    fprintf(stdout, "memory used=%lld highwater=%lld\n", nUsed, nHighwater);
+  }
+
+  sqlite3_free(zErrmsg);
+  return (rc==SQLITE_OK || rc==SQLITE_DONE) ? 0 : 1;
+}
diff --git a/ext/rbu/rbu1.test b/ext/rbu/rbu1.test
new file mode 100644
index 0000000000000000000000000000000000000000..418857d8b1494eee51f128c8c1c7b532d2c82438
--- /dev/null
+++ b/ext/rbu/rbu1.test
@@ -0,0 +1,676 @@
+# 2014 August 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname [info script]] rbu_common.tcl]
+if_no_rbu_support { finish_test ; return }
+set ::testprefix rbu1
+
+db close
+
+# Create a simple RBU database. That expects to write to a table:
+#
+#   CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+#
+proc create_rbu1 {filename} {
+  forcedelete $filename
+  sqlite3 rbu1 $filename  
+  rbu1 eval {
+    CREATE TABLE data_t1(a, b, c, rbu_control);
+    INSERT INTO data_t1 VALUES(1, 2, 3, 0);
+    INSERT INTO data_t1 VALUES(2, 'two', 'three', 0);
+    INSERT INTO data_t1 VALUES(3, NULL, 8.2, 0);
+  }
+  rbu1 close
+  return $filename
+}
+
+# Create a simple RBU database. That expects to write to a table:
+#
+#   CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+#
+# This RBU includes both insert and delete operations.
+#
+proc create_rbu4 {filename} {
+  forcedelete $filename
+  sqlite3 rbu1 $filename  
+  rbu1 eval {
+    CREATE TABLE data_t1(a, b, c, rbu_control);
+    INSERT INTO data_t1 VALUES(1, 2, 3, 0);
+    INSERT INTO data_t1 VALUES(2, NULL, 5, 1);
+    INSERT INTO data_t1 VALUES(3, 8, 9, 0);
+    INSERT INTO data_t1 VALUES(4, NULL, 11, 1);
+  }
+  rbu1 close
+  return $filename
+}
+#
+# Create a simple RBU database. That expects to write to a table:
+#
+#   CREATE TABLE t1(c, b, '(a)' INTEGER PRIMARY KEY);
+#
+# This RBU includes both insert and delete operations.
+#
+proc create_rbu4b {filename} {
+  forcedelete $filename
+  sqlite3 rbu1 $filename  
+  rbu1 eval {
+    CREATE TABLE data_t1(c, b, '(a)', rbu_control);
+    INSERT INTO data_t1 VALUES(3, 2, 1, 0);
+    INSERT INTO data_t1 VALUES(5, NULL, 2, 1);
+    INSERT INTO data_t1 VALUES(9, 8, 3, 0);
+    INSERT INTO data_t1 VALUES(11, NULL, 4, 1);
+  }
+  rbu1 close
+  return $filename
+}
+
+# Create a simple RBU database. That expects to write to a table:
+#
+#   CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c, d);
+#
+# This RBU includes update statements.
+#
+proc create_rbu5 {filename} {
+  forcedelete $filename
+  sqlite3 rbu5 $filename  
+  rbu5 eval {
+    CREATE TABLE data_t1(a, b, c, d, rbu_control);
+    INSERT INTO data_t1 VALUES(1, NULL, NULL, 5, '...x');  -- SET d = 5
+    INSERT INTO data_t1 VALUES(2, NULL, 10, 5, '..xx');    -- SET c=10, d = 5
+    INSERT INTO data_t1 VALUES(3, 11, NULL, NULL, '.x..'); -- SET b=11
+  }
+  rbu5 close
+  return $filename
+}
+
+
+# Same as [step_rbu], except using a URI to open the target db.
+#
+proc step_rbu_uri {target rbu} {
+  while 1 {
+    sqlite3rbu rbu file:$target?xyz=&abc=123 $rbu
+    set rc [rbu step]
+    rbu close
+    if {$rc != "SQLITE_OK"} break
+  }
+  set rc
+}
+
+# Same as [step_rbu], except using an external state database - "state.db"
+#
+proc step_rbu_state {target rbu} {
+  while 1 {
+    sqlite3rbu rbu $target $rbu state.db
+    set rc [rbu step]
+    rbu close
+    if {$rc != "SQLITE_OK"} break
+  }
+  set rc
+}
+
+proc dbfilecksum {file} {
+  sqlite3 ck $file
+  set cksum [dbcksum ck main]
+  ck close
+  set cksum
+}
+
+foreach {tn3 create_vfs destroy_vfs} {
+  1 {} {}
+  2 {
+    sqlite3rbu_create_vfs -default myrbu ""
+  } {
+    sqlite3rbu_destroy_vfs myrbu
+  }
+  3 {
+    sqlite3_register_cksumvfs
+  } {
+    sqlite3_unregister_cksumvfs
+  }
+} {
+
+  eval $create_vfs
+
+  foreach {tn2 cmd} {
+      1 run_rbu 
+      2 step_rbu 3 step_rbu_uri 4 step_rbu_state
+      5 step_rbu_legacy
+  } {
+    foreach {tn schema} {
+      1 {
+        CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+      }
+      2 { 
+        CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+        CREATE INDEX i1 ON t1(b);
+      }
+      3 { 
+        CREATE TABLE t1(a PRIMARY KEY, b, c) WITHOUT ROWID;
+      }
+      4 { 
+        CREATE TABLE t1(a PRIMARY KEY, b, c) WITHOUT ROWID;
+        CREATE INDEX i1 ON t1(b);
+      }
+      5 { 
+        CREATE TABLE t1(a, b, c, PRIMARY KEY(a, c)) WITHOUT ROWID;
+        CREATE INDEX i1 ON t1(b);
+      }
+      6 { 
+        CREATE TABLE t1(a, b, c, PRIMARY KEY(c)) WITHOUT ROWID;
+        CREATE INDEX i1 ON t1(b, a);
+      }
+      7 { 
+        CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+        CREATE INDEX i1 ON t1(b, c);
+        CREATE INDEX i2 ON t1(c, b);
+        CREATE INDEX i3 ON t1(a, b, c, a, b, c);
+      }
+
+      8 { 
+        CREATE TABLE t1(a PRIMARY KEY, b, c);
+        CREATE INDEX i1 ON t1(b, c);
+        CREATE INDEX i2 ON t1(c, b);
+        CREATE INDEX i3 ON t1(a, b, c, a, b, c);
+      }
+
+      9 { 
+        CREATE TABLE t1(a, b, c, PRIMARY KEY(a, c));
+        CREATE INDEX i1 ON t1(b);
+      }
+
+      10 { 
+        CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+        CREATE INDEX i1 ON t1(b DESC);
+      }
+
+      11 { 
+        CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+        CREATE INDEX i1 ON t1(b DESC, a ASC, c DESC);
+      }
+
+      12 { 
+        CREATE TABLE t1(a INT PRIMARY KEY DESC, b, c) WITHOUT ROWID; 
+      }
+
+      13 { 
+        CREATE TABLE t1(a INT, b, c, PRIMARY KEY(a DESC)) WITHOUT ROWID; 
+      }
+
+      14 { 
+        CREATE TABLE t1(a, b, c, PRIMARY KEY(a DESC, c)) WITHOUT ROWID;
+        CREATE INDEX i1 ON t1(b);
+      }
+
+      15 { 
+        CREATE TABLE t1(a, b, c, PRIMARY KEY(a, c DESC)) WITHOUT ROWID;
+        CREATE INDEX i1 ON t1(b);
+      }
+
+      16 { 
+        CREATE TABLE t1(a, b, c, PRIMARY KEY(c DESC, a)) WITHOUT ROWID;
+        CREATE INDEX i1 ON t1(b DESC, c, a);
+      }
+    } {
+      reset_db
+      execsql $schema
+      create_rbu1 rbu.db
+      set check [dbfilecksum rbu.db]
+      forcedelete state.db
+
+      do_test $tn3.1.$tn2.$tn.1 {
+        $cmd test.db rbu.db
+      } {SQLITE_DONE}
+
+      do_execsql_test $tn3.1.$tn2.$tn.2 { SELECT * FROM t1 ORDER BY a ASC } {
+        1 2 3 
+        2 two three 
+        3 {} 8.2
+      }
+      do_execsql_test $tn3.1.$tn2.$tn.3 { SELECT * FROM t1 ORDER BY b ASC } {
+        3 {} 8.2
+        1 2 3 
+        2 two three 
+      }
+      do_execsql_test $tn3.1.$tn2.$tn.4 { SELECT * FROM t1 ORDER BY c ASC } {
+        1 2 3 
+        3 {} 8.2
+        2 two three 
+      }
+   
+      do_execsql_test $tn3.1.$tn2.$tn.5 { PRAGMA integrity_check } ok
+
+      if {$cmd=="step_rbu_state"} {
+        do_test $tn3.1.$tn2.$tn.6 { file exists state.db } 1
+        do_test $tn3.1.$tn2.$tn.7 { expr {$check == [dbfilecksum rbu.db]} } 1
+      } else {
+        do_test $tn3.1.$tn2.$tn.8 { file exists state.db } 0
+        do_test $tn3.1.$tn2.$tn.9 { expr {$check == [dbfilecksum rbu.db]} } 0
+      }
+    }
+  }
+
+  #-------------------------------------------------------------------------
+  # Check that an RBU cannot be applied to a table that has no PK.
+  #
+  # UPDATE: At one point RBU required that all tables featured either
+  # explicit IPK columns or were declared WITHOUT ROWID. This has been
+  # relaxed so that external PRIMARY KEYs on tables with automatic rowids
+  # are now allowed.
+  #
+  # UPDATE 2: Tables without any PRIMARY KEY declaration are now allowed.
+  # However the input table must feature an "rbu_rowid" column.
+  #
+  reset_db
+  create_rbu1 rbu.db
+  do_execsql_test $tn3.2.1 { CREATE TABLE t1(a, b, c) }
+  do_test $tn3.2.2 {
+    sqlite3rbu rbu test.db rbu.db
+    rbu step
+  } {SQLITE_ERROR}
+  do_test $tn3.2.3 {
+    list [catch { rbu close } msg] $msg
+  } {1 {SQLITE_ERROR - table data_t1 requires rbu_rowid column}}
+  reset_db
+  do_execsql_test $tn3.2.4 { CREATE TABLE t1(a PRIMARY KEY, b, c) }
+  do_test $tn3.2.5 {
+    sqlite3rbu rbu test.db rbu.db
+    rbu step
+  } {SQLITE_OK}
+  do_test $tn3.2.6 {
+    list [catch { rbu close } msg] $msg
+  } {0 SQLITE_OK}
+
+  #-------------------------------------------------------------------------
+  # Check that if a UNIQUE constraint is violated the current and all 
+  # subsequent [rbu step] calls return SQLITE_CONSTRAINT. And that the RBU 
+  # transaction is rolled back by the [rbu close] that deletes the rbu 
+  # handle.
+  #
+  foreach {tn errcode errmsg schema} {
+    1 SQLITE_CONSTRAINT "UNIQUE constraint failed: t1.a" {
+      CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+      INSERT INTO t1 VALUES(3, 2, 1);
+    } 
+
+    2 SQLITE_CONSTRAINT "UNIQUE constraint failed: t1.c" {
+      CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c UNIQUE);
+      INSERT INTO t1 VALUES(4, 2, 'three');
+    } 
+
+    3 SQLITE_CONSTRAINT "UNIQUE constraint failed: t1.a" {
+      CREATE TABLE t1(a PRIMARY KEY, b, c);
+      INSERT INTO t1 VALUES(3, 2, 1);
+    } 
+
+    4 SQLITE_CONSTRAINT "UNIQUE constraint failed: t1.c" {
+      CREATE TABLE t1(a PRIMARY KEY, b, c UNIQUE);
+      INSERT INTO t1 VALUES(4, 2, 'three');
+    } 
+
+  } {
+    reset_db
+    execsql $schema
+    set cksum [dbcksum db main]
+
+    do_test $tn3.3.$tn.1 {
+      create_rbu1 rbu.db
+      sqlite3rbu rbu test.db rbu.db
+      while {[set res [rbu step]]=="SQLITE_OK"} {}
+      set res
+    } $errcode
+
+    do_test $tn3.3.$tn.2 { rbu step } $errcode
+
+    do_test $tn3.3.$tn.3 { 
+      list [catch { rbu close } msg] $msg
+    } [list 1 "$errcode - $errmsg"]
+
+    do_test $tn3.3.$tn.4 { dbcksum db main } $cksum
+  }
+
+  #-------------------------------------------------------------------------
+  #
+  foreach {tn2 cmd} {1 run_rbu 2 step_rbu 3 step_rbu_state } {
+    foreach {tn schema} {
+      1 {
+        CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+      }
+      2 {
+        CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+        CREATE INDEX i1 ON t1(b);
+      }
+      3 {
+        CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+        CREATE INDEX i1 ON t1(b);
+        CREATE INDEX i2 ON t1(c, b);
+        CREATE INDEX i3 ON t1(c, b, c);
+      }
+      4 {
+        CREATE TABLE t1(a INT PRIMARY KEY, b, c) WITHOUT ROWID;
+        CREATE INDEX i1 ON t1(b);
+        CREATE INDEX i2 ON t1(c, b);
+        CREATE INDEX i3 ON t1(c, b, c);
+      }
+      5 {
+        CREATE TABLE t1(a INT PRIMARY KEY, b, c);
+        CREATE INDEX i1 ON t1(b);
+        CREATE INDEX i2 ON t1(c, b);
+        CREATE INDEX i3 ON t1(c, b, c);
+      }
+
+      6 {
+        CREATE TABLE t1(a INT PRIMARY KEY DESC, b, c);
+        CREATE INDEX i1 ON t1(b DESC);
+        CREATE INDEX i2 ON t1(c, b);
+        CREATE INDEX i3 ON t1(c DESC, b, c);
+      }
+      7 {
+        CREATE TABLE t1(a INT PRIMARY KEY DESC, b, c) WITHOUT ROWID;
+        CREATE INDEX i1 ON t1(b);
+        CREATE INDEX i2 ON t1(c, b);
+        CREATE INDEX i3 ON t1(c, b, c);
+      }
+    } {
+      reset_db
+      execsql $schema
+      execsql {
+        INSERT INTO t1 VALUES(2, 'hello', 'world');
+        INSERT INTO t1 VALUES(4, 'hello', 'planet');
+        INSERT INTO t1 VALUES(6, 'hello', 'xyz');
+      }
+
+      create_rbu4 rbu.db
+      set check [dbfilecksum rbu.db]
+      forcedelete state.db
+    
+      do_test $tn3.4.$tn2.$tn.1 {
+        $cmd test.db rbu.db
+      } {SQLITE_DONE}
+      
+      do_execsql_test $tn3.4.$tn2.$tn.2 {
+        SELECT * FROM t1 ORDER BY a ASC;
+      } {
+        1 2 3 
+        3 8 9
+        6 hello xyz
+      }
+    
+      do_execsql_test $tn3.4.$tn2.$tn.3 { PRAGMA integrity_check } ok
+
+      if {$cmd=="step_rbu_state"} {
+        do_test $tn3.4.$tn2.$tn.4 { file exists state.db } 1
+        do_test $tn3.4.$tn2.$tn.5 { expr {$check == [dbfilecksum rbu.db]} } 1
+      } else {
+        do_test $tn3.4.$tn2.$tn.6 { file exists state.db } 0
+        do_test $tn3.4.$tn2.$tn.7 { expr {$check == [dbfilecksum rbu.db]} } 0
+      }
+    }
+  }
+
+  foreach {tn2 cmd} {1 run_rbu 2 step_rbu 3 step_rbu_state} {
+    foreach {tn schema} {
+      1 {
+        CREATE TABLE t1(c, b, '(a)' INTEGER PRIMARY KEY);
+        CREATE INDEX i1 ON t1(c, b);
+      }
+      2 {
+        CREATE TABLE t1(c, b, '(a)' PRIMARY KEY);
+      }
+      3 {
+        CREATE TABLE t1(c, b, '(a)' PRIMARY KEY) WITHOUT ROWID;
+      }
+    } {
+      reset_db
+      execsql $schema
+      execsql {
+        INSERT INTO t1('(a)', b, c) VALUES(2, 'hello', 'world');
+        INSERT INTO t1('(a)', b, c) VALUES(4, 'hello', 'planet');
+        INSERT INTO t1('(a)', b, c) VALUES(6, 'hello', 'xyz');
+      }
+
+      create_rbu4b rbu.db
+      set check [dbfilecksum rbu.db]
+      forcedelete state.db
+    
+      do_test $tn3.5.$tn2.$tn.1 {
+        $cmd test.db rbu.db
+      } {SQLITE_DONE}
+      
+      do_execsql_test $tn3.5.$tn2.$tn.2 {
+        SELECT * FROM t1 ORDER BY "(a)" ASC;
+      } {
+        3 2 1
+        9 8 3
+        xyz hello 6
+      }
+    
+      do_execsql_test $tn3.4.$tn2.$tn.3 { PRAGMA integrity_check } ok
+
+      if {$cmd=="step_rbu_state"} {
+        do_test $tn3.5.$tn2.$tn.4 { file exists state.db } 1
+        do_test $tn3.5.$tn2.$tn.5 { expr {$check == [dbfilecksum rbu.db]} } 1
+      } else {
+        do_test $tn3.5.$tn2.$tn.6 { file exists state.db } 0
+        do_test $tn3.5.$tn2.$tn.7 { expr {$check == [dbfilecksum rbu.db]} } 0
+      }
+    }
+  }
+
+  #-------------------------------------------------------------------------
+  #
+  foreach {tn2 cmd} {1 run_rbu 2 step_rbu 3 step_rbu_state} {
+    foreach {tn schema} {
+      1 {
+        CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c, d);
+      }
+      2 {
+        CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c, d);
+        CREATE INDEX i1 ON t1(d);
+        CREATE INDEX i2 ON t1(d, c);
+        CREATE INDEX i3 ON t1(d, c, b);
+        CREATE INDEX i4 ON t1(b);
+        CREATE INDEX i5 ON t1(c);
+        CREATE INDEX i6 ON t1(c, b);
+      }
+      3 {
+        CREATE TABLE t1(a PRIMARY KEY, b, c, d) WITHOUT ROWID;
+        CREATE INDEX i1 ON t1(d);
+        CREATE INDEX i2 ON t1(d, c);
+        CREATE INDEX i3 ON t1(d, c, b);
+        CREATE INDEX i4 ON t1(b);
+        CREATE INDEX i5 ON t1(c);
+        CREATE INDEX i6 ON t1(c, b);
+      }
+      4 {
+        CREATE TABLE t1(a PRIMARY KEY, b, c, d);
+        CREATE INDEX i1 ON t1(d);
+        CREATE INDEX i2 ON t1(d, c);
+        CREATE INDEX i3 ON t1(d, c, b);
+        CREATE INDEX i4 ON t1(b);
+        CREATE INDEX i5 ON t1(c);
+        CREATE INDEX i6 ON t1(c, b);
+      }
+    } {
+      reset_db
+      execsql $schema
+      execsql {
+        INSERT INTO t1 VALUES(1, 2, 3, 4);
+        INSERT INTO t1 VALUES(2, 5, 6, 7);
+        INSERT INTO t1 VALUES(3, 8, 9, 10);
+      }
+    
+      create_rbu5 rbu.db
+      set check [dbfilecksum rbu.db]
+      forcedelete state.db
+
+      do_test $tn3.5.$tn2.$tn.1 {
+        $cmd test.db rbu.db
+      } {SQLITE_DONE}
+      
+      do_execsql_test $tn3.5.$tn2.$tn.2 {
+        SELECT * FROM t1 ORDER BY a ASC;
+      } {
+        1 2 3 5
+        2 5 10 5
+        3 11 9 10
+      }
+    
+      do_execsql_test $tn3.6.$tn2.$tn.3 { PRAGMA integrity_check } ok
+
+      if {$cmd=="step_rbu_state"} {
+        do_test $tn3.6.$tn2.$tn.4 { file exists state.db } 1
+        do_test $tn3.6.$tn2.$tn.5 { expr {$check == [dbfilecksum rbu.db]} } 1
+      } else {
+        do_test $tn3.6.$tn2.$tn.6 { file exists state.db } 0
+        do_test $tn3.6.$tn2.$tn.7 { expr {$check == [dbfilecksum rbu.db]} } 0
+      }
+    }
+  }
+
+  #-------------------------------------------------------------------------
+  # Test some error cases:
+  # 
+  #   * A virtual table with no rbu_rowid column.
+  #   * A no-PK table with no rbu_rowid column.
+  #   * A PK table with an rbu_rowid column.
+  #
+  #   6: An update string of the wrong length
+  #
+  ifcapable fts3 {
+    foreach {tn schema error} {
+       1 {
+         CREATE TABLE t1(a, b);
+         CREATE TABLE rbu.data_t1(a, b, rbu_control);
+       } {SQLITE_ERROR - table data_t1 requires rbu_rowid column}
+    
+       2 {
+         CREATE VIRTUAL TABLE t1 USING fts4(a, b);
+         CREATE TABLE rbu.data_t1(a, b, rbu_control);
+       } {SQLITE_ERROR - table data_t1 requires rbu_rowid column}
+    
+       3 {
+         CREATE TABLE t1(a PRIMARY KEY, b);
+         CREATE TABLE rbu.data_t1(a, b, rbu_rowid, rbu_control);
+       } {SQLITE_ERROR - table data_t1 may not have rbu_rowid column}
+    
+       4 {
+         CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+         CREATE TABLE rbu.data_t1(a, b, rbu_rowid, rbu_control);
+       } {SQLITE_ERROR - table data_t1 may not have rbu_rowid column}
+    
+       5 {
+         CREATE TABLE t1(a, b PRIMARY KEY) WITHOUT ROWID;
+         CREATE TABLE rbu.data_t1(a, b, rbu_rowid, rbu_control);
+       } {SQLITE_ERROR - table data_t1 may not have rbu_rowid column}
+
+       6 {
+         CREATE TABLE t1(a, b PRIMARY KEY) WITHOUT ROWID;
+         CREATE TABLE rbu.data_t1(a, b, rbu_control);
+         INSERT INTO rbu.data_t1 VALUES(1, 2, 'x.x');
+       } {SQLITE_ERROR - invalid rbu_control value}
+
+       7 {
+         CREATE TABLE t1(a, b PRIMARY KEY) WITHOUT ROWID;
+         CREATE TABLE rbu.data_t1(a, b, rbu_control);
+         INSERT INTO rbu.data_t1 VALUES(1, 2, NULL);
+       } {SQLITE_ERROR - invalid rbu_control value}
+
+       8 {
+         CREATE TABLE t1(a, b PRIMARY KEY) WITHOUT ROWID;
+         CREATE TABLE rbu.data_t1(a, b, rbu_control);
+         INSERT INTO rbu.data_t1 VALUES(1, 2, 4);
+       } {SQLITE_ERROR - invalid rbu_control value}
+
+       9 {
+         CREATE TABLE t1(a, b PRIMARY KEY) WITHOUT ROWID;
+         CREATE TABLE rbu.data_t1(a, b, rbu_control);
+         INSERT INTO rbu.data_t1 VALUES(1, 2, 3);
+       } {SQLITE_ERROR - invalid rbu_control value}
+
+       10 {
+         CREATE TABLE t2(a, b);
+         CREATE TABLE rbu.data_t1(a, b, rbu_control);
+         INSERT INTO rbu.data_t1 VALUES(1, 2, 2);
+       } {SQLITE_ERROR - no such table: t1}
+
+       11 {
+         CREATE TABLE rbu.data_t2(a, b, rbu_control);
+         INSERT INTO rbu.data_t2 VALUES(1, 2, 2);
+       } {SQLITE_ERROR - no such table: t2}
+
+    } {
+      reset_db
+      forcedelete rbu.db
+      execsql { ATTACH 'rbu.db' AS rbu }
+      execsql $schema
+
+      do_test $tn3.7.$tn {
+        list [catch { run_rbu test.db rbu.db } msg] $msg
+      } [list 1 $error]
+    }
+  }
+
+  # Test that an RBU database containing no input tables is handled
+  # correctly.
+  reset_db
+  forcedelete rbu.db
+  do_test $tn3.8.1 {
+    list [catch { run_rbu test.db rbu.db } msg] $msg
+  } {0 SQLITE_DONE}
+
+  # Test that an RBU database containing only empty data_xxx tables is
+  # also handled correctly.
+  reset_db
+  forcedelete rbu.db
+  do_execsql_test $tn3.8.2.1 {
+    CREATE TABLE t1(a PRIMARY KEY, b);
+    INSERT INTO t1 VALUES(1, 2);
+    ATTACH 'rbu.db' AS rbu;
+    CREATE TABLE data_t1(a, b, rbu_control);
+    DETACH rbu;
+  }
+  do_test $tn3.8.2.1 {
+    list [catch { run_rbu test.db rbu.db } msg] $msg
+  } {0 SQLITE_DONE}
+
+  # Test that RBU can update indexes containing NULL values.
+  #
+  reset_db
+  forcedelete rbu.db
+  do_execsql_test $tn3.9.1 {
+    CREATE TABLE t1(a PRIMARY KEY, b, c);
+    CREATE INDEX i1 ON t1(b, c);
+    INSERT INTO t1 VALUES(1, 1, NULL);
+    INSERT INTO t1 VALUES(2, NULL, 2);
+    INSERT INTO t1 VALUES(3, NULL, NULL);
+
+    ATTACH 'rbu.db' AS rbu;
+    CREATE TABLE rbu.data_t1(a, b, c, rbu_control);
+    INSERT INTO data_t1 VALUES(1, NULL, NULL, 1);
+    INSERT INTO data_t1 VALUES(3, NULL, NULL, 1);
+  } {}
+
+  do_test $tn3.9.2 {
+    list [catch { run_rbu test.db rbu.db } msg] $msg
+  } {0 SQLITE_DONE}
+
+  do_execsql_test $tn3.9.3 {
+    SELECT * FROM t1
+  } {2 {} 2}
+  do_execsql_test $tn3.9.4 { PRAGMA integrity_check } {ok}
+
+  catch { db close }
+  eval $destroy_vfs
+}
+
+
+finish_test
diff --git a/ext/rbu/rbu10.test b/ext/rbu/rbu10.test
new file mode 100644
index 0000000000000000000000000000000000000000..8705c7b2e5d7083cc60775ab2a0f26f42f08267c
--- /dev/null
+++ b/ext/rbu/rbu10.test
@@ -0,0 +1,184 @@
+# 2014 August 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname [info script]] rbu_common.tcl]
+if_no_rbu_support { finish_test ; return }
+set ::testprefix rbu10
+
+#--------------------------------------------------------------------
+# Test that UPDATE commands work even if the input columns are in a 
+# different order to the output columns. 
+#
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+  INSERT INTO t1 VALUES(1, 'b', 'c');
+}
+
+proc apply_rbu {sql} {
+  forcedelete rbu.db
+  sqlite3 db2 rbu.db
+  db2 eval $sql
+  db2 close
+  sqlite3rbu rbu test.db rbu.db
+  while { [rbu step]=="SQLITE_OK" } {}
+  rbu close
+}
+
+do_test 1.1 {
+  apply_rbu {
+    CREATE TABLE data_t1(a, c, b, rbu_control);
+    INSERT INTO data_t1 VALUES(1, 'xxx', NULL, '.x.');
+  }
+  db eval { SELECT * FROM t1 }
+} {1 b xxx}
+
+#--------------------------------------------------------------------
+# Test that the hidden languageid column of an fts4 table can be 
+# written.
+#
+ifcapable fts3 {
+  do_execsql_test 2.0 {
+    create virtual TABLE ft USING fts4(a, b, languageid='langid');
+  }
+  do_test 2.1 {
+    apply_rbu {
+      CREATE TABLE data_ft(a, b, rbu_rowid, langid, rbu_control);
+      INSERT INTO data_ft VALUES('a', 'b', 22, 1, 0);    -- insert
+      INSERT INTO data_ft VALUES('a', 'b', 23, 10, 0);   -- insert
+      INSERT INTO data_ft VALUES('a', 'b', 24, 100, 0);  -- insert
+    }
+    db eval { SELECT a, b, rowid, langid FROM ft }
+  } [list {*}{
+    a b 22 1
+    a b 23 10
+    a b 24 100
+  }]
+  
+  # Or not - this data_xxx table has no langid column, so langid 
+  # defaults to 0.
+  #
+  do_test 2.2 {
+    apply_rbu {
+      CREATE TABLE data_ft(a, b, rbu_rowid, rbu_control);
+      INSERT INTO data_ft VALUES('a', 'b', 25, 0);    -- insert
+    }
+    db eval { SELECT a, b, rowid, langid FROM ft }
+  } [list {*}{
+    a b 22 1
+    a b 23 10
+    a b 24 100
+    a b 25 0
+  }]
+  
+  # Update langid.
+  #
+  do_test 2.3 {
+    apply_rbu {
+      CREATE TABLE data_ft(a, b, rbu_rowid, langid, rbu_control);
+      INSERT INTO data_ft VALUES(NULL, NULL, 23, 50, '..x');
+      INSERT INTO data_ft VALUES(NULL, NULL, 25, 500, '..x');
+    }
+    db eval { SELECT a, b, rowid, langid FROM ft }
+  } [list {*}{
+    a b 22 1
+    a b 23 50
+    a b 24 100
+    a b 25 500
+  }]
+}
+
+#--------------------------------------------------------------------
+# Test that if writing a hidden virtual table column is an error, 
+# attempting to do so via rbu is also an error.
+#
+ifcapable fts3 {
+  do_execsql_test 3.0 {
+    CREATE VIRTUAL TABLE xt USING fts4(a);
+  }
+  do_test 3.1 {
+    list [catch {
+      apply_rbu {
+        CREATE TABLE data_xt(a, xt, rbu_rowid, rbu_control);
+        INSERT INTO data_xt VALUES('a', 'b', 1, 0);
+      }
+    } msg] $msg
+  } {1 {SQLITE_ERROR - SQL logic error}}
+}
+
+#--------------------------------------------------------------------
+# Test that it is not possible to violate a NOT NULL constraint by
+# applying an RBU update.
+#
+do_execsql_test 4.1 {
+  CREATE TABLE t2(a INTEGER NOT NULL, b TEXT NOT NULL, c PRIMARY KEY);
+  CREATE TABLE t3(a INTEGER NOT NULL, b TEXT NOT NULL, c INTEGER PRIMARY KEY);
+  CREATE TABLE t4(a, b, PRIMARY KEY(a, b)) WITHOUT ROWID;
+
+  INSERT INTO t2 VALUES(10, 10, 10);
+  INSERT INTO t3 VALUES(10, 10, 10);
+  INSERT INTO t4 VALUES(10, 10);
+}
+
+foreach {tn error rbu} {
+  2 {SQLITE_CONSTRAINT - NOT NULL constraint failed: t2.a} {
+    INSERT INTO data_t2 VALUES(NULL, 'abc', 1, 0);
+  }
+  3 {SQLITE_CONSTRAINT - NOT NULL constraint failed: t2.b} {
+    INSERT INTO data_t2 VALUES(2, NULL, 1, 0);
+  }
+  4 {SQLITE_CONSTRAINT - NOT NULL constraint failed: t2.c} {
+    INSERT INTO data_t2 VALUES(1, 'abc', NULL, 0);
+  }
+
+  5 {SQLITE_MISMATCH - datatype mismatch} {
+    INSERT INTO data_t3 VALUES(1, 'abc', NULL, 0);
+  }
+
+  6 {SQLITE_CONSTRAINT - NOT NULL constraint failed: t4.b} {
+    INSERT INTO data_t4 VALUES('a', NULL, 0);
+  }
+  7 {SQLITE_CONSTRAINT - NOT NULL constraint failed: t4.a} {
+    INSERT INTO data_t4 VALUES(NULL, 'a', 0);
+  }
+  8  {SQLITE_CONSTRAINT - NOT NULL constraint failed: t2.a} {
+    INSERT INTO data_t2 VALUES(NULL, 0, 10, 'x..');
+  }
+  9  {SQLITE_CONSTRAINT - NOT NULL constraint failed: t3.b} {
+    INSERT INTO data_t3 VALUES(10, NULL, 10, '.x.');
+  }
+
+  10 {SQLITE_MISMATCH - datatype mismatch} {
+    INSERT INTO data_t3 VALUES(1, 'abc', 'text', 0);
+  }
+} {
+  set rbu "
+    CREATE TABLE data_t2(a, b, c, rbu_control);
+    CREATE TABLE data_t3(a, b, c, rbu_control);
+    CREATE TABLE data_t4(a, b, rbu_control);
+    $rbu
+  "
+  do_test 4.2.$tn {
+    list [catch { apply_rbu $rbu } msg] $msg
+  } [list 1 $error]
+}
+
+do_test 4.3 {
+  set rbu {
+    CREATE TABLE data_t3(a, b, c, rbu_control);
+    INSERT INTO data_t3 VALUES(1, 'abc', '5', 0);
+    INSERT INTO data_t3 VALUES(1, 'abc', '-6.0', 0);
+  }
+  list [catch { apply_rbu $rbu } msg] $msg
+} {0 SQLITE_DONE}
+
+
+finish_test
diff --git a/ext/rbu/rbu11.test b/ext/rbu/rbu11.test
new file mode 100644
index 0000000000000000000000000000000000000000..a42163cce6a362c9e4a7d21b7bf67466d31898af
--- /dev/null
+++ b/ext/rbu/rbu11.test
@@ -0,0 +1,195 @@
+# 2015 February 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname [info script]] rbu_common.tcl]
+if_no_rbu_support { finish_test ; return }
+set ::testprefix rbu11
+
+
+#--------------------------------------------------------------------
+# Test that the xAccess() method of an rbu vfs handles queries other
+# than SQLITE_ACCESS_EXISTS correctly. The test code below causes
+# SQLite to call xAccess(SQLITE_ACCESS_READWRITE) on the directory
+# path argument passed to "PRAGMA temp_store_directory".
+#
+do_test 1.1 {
+  sqlite3rbu_create_vfs -default rbu ""
+  reset_db
+  catchsql { PRAGMA temp_store_directory = '/no/such/directory' }
+} {1 {not a writable directory}}
+
+do_test 1.2 {
+  catchsql " PRAGMA temp_store_directory = '[pwd]' "
+} {0 {}}
+
+do_test 1.3 {
+  catchsql " PRAGMA temp_store_directory = '' "
+} {0 {}}
+
+do_test 1.4 {
+  db close
+  sqlite3rbu_destroy_vfs rbu
+} {}
+
+#--------------------------------------------------------------------
+# Try to trick rbu into operating on a database opened in wal mode.
+#
+reset_db
+do_execsql_test 2.1 {
+  CREATE TABLE t1(a PRIMARY KEY, b, c);
+  INSERT INTO t1 VALUES(1, 2, 3);
+  PRAGMA journal_mode = 'wal';
+  CREATE TABLE t2(d PRIMARY KEY, e, f);
+} {wal}
+
+do_test 2.2 {
+  db_save 
+  db close
+
+  forcedelete rbu.db
+  sqlite3 dbo rbu.db
+  dbo eval {
+    CREATE TABLE data_t1(a, b, c, rbu_control);
+    INSERT INTO data_t1 VALUES(4, 5, 6, 0);
+    INSERT INTO data_t1 VALUES(7, 8, 9, 0);
+  }
+  dbo close
+
+  db_restore 
+  hexio_write test.db 18 0101
+  file exists test.db-wal
+} {1}
+
+do_test 2.3 {
+  sqlite3rbu rbu test.db rbu.db
+  rbu step
+} {SQLITE_ERROR}
+
+do_test 2.4 {
+  list [catch {rbu close} msg] $msg
+} {1 {SQLITE_ERROR - cannot update wal mode database}}
+
+#--------------------------------------------------------------------
+# Test a constraint violation message with an unusual table name. 
+# Specifically, one for which the first character is a codepoint
+# smaller than 30 (character '0').
+#
+reset_db
+do_execsql_test 3.1 {
+  CREATE TABLE "(t1)"(a PRIMARY KEY, b, c);
+  INSERT INTO "(t1)" VALUES(1, 2, 3);
+  INSERT INTO "(t1)" VALUES(4, 5, 6);
+}
+db close
+
+do_test 3.2 {
+  forcedelete rbu.db
+  sqlite3 dbo rbu.db
+  dbo eval {
+    CREATE TABLE "data_(t1)"(a, b, c, rbu_control);
+    INSERT INTO "data_(t1)" VALUES(4, 8, 9, 0);
+  }
+  dbo close
+
+  sqlite3rbu rbu test.db rbu.db
+  rbu step
+  rbu step
+} {SQLITE_CONSTRAINT}
+
+do_test 3.3 {
+  list [catch {rbu close} msg] $msg
+} {1 {SQLITE_CONSTRAINT - UNIQUE constraint failed: (t1).a}}
+
+#--------------------------------------------------------------------
+# Check that once an RBU update has been applied, attempting to apply
+# it a second time is a no-op (as the state stored in the RBU database is
+# "all steps completed").
+#
+reset_db
+do_execsql_test 4.1 {
+  CREATE TABLE "(t1)"(a, b, c, PRIMARY KEY(c, b, a));
+  INSERT INTO "(t1)" VALUES(1, 2, 3);
+  INSERT INTO "(t1)" VALUES(4, 5, 6);
+}
+db close
+
+do_test 4.2 {
+  forcedelete rbu.db
+  sqlite3 dbo rbu.db
+  dbo eval {
+    CREATE TABLE "data_(t1)"(a, b, c, rbu_control);
+    INSERT INTO "data_(t1)" VALUES(7, 8, 9, 0);
+    INSERT INTO "data_(t1)" VALUES(1, 2, 3, 1);
+  }
+  dbo close
+
+  sqlite3rbu rbu test.db rbu.db
+  while {[rbu step]=="SQLITE_OK"} { }
+  rbu close
+} {SQLITE_DONE}
+
+do_test 4.3 {
+  sqlite3rbu rbu test.db rbu.db
+  rbu step
+} {SQLITE_DONE}
+
+do_test 4.4 {
+  rbu close
+} {SQLITE_DONE}
+
+do_test 4.5.1 {
+  sqlite3 dbo rbu.db
+  dbo eval { INSERT INTO rbu_state VALUES(100, 100) }
+  dbo close
+  sqlite3rbu rbu test.db rbu.db
+  rbu step
+} {SQLITE_CORRUPT}
+do_test 4.5.2 {
+  list [catch {rbu close} msg] $msg
+} {1 SQLITE_CORRUPT}
+do_test 4.5.3 {
+  sqlite3 dbo rbu.db
+  dbo eval { DELETE FROM rbu_state WHERE k = 100 }
+  dbo close 
+} {}
+
+# Also, check that an invalid state value in the rbu_state table is
+# detected and reported as corruption.
+do_test 4.6.1 {
+  sqlite3 dbo rbu.db
+  dbo eval { UPDATE rbu_state SET v = v*-1 WHERE k = 1 }
+  dbo close
+  sqlite3rbu rbu test.db rbu.db
+  rbu step
+} {SQLITE_CORRUPT}
+do_test 4.6.2 {
+  list [catch {rbu close} msg] $msg
+} {1 SQLITE_CORRUPT}
+do_test 4.6.3 {
+  sqlite3 dbo rbu.db
+  dbo eval { UPDATE rbu_state SET v = v*-1 WHERE k = 1 }
+  dbo close 
+} {}
+
+do_test 4.7.1 {
+  sqlite3 dbo rbu.db
+  dbo eval { UPDATE rbu_state SET v = 1 WHERE k = 1 }
+  dbo eval { UPDATE rbu_state SET v = 'nosuchtable' WHERE k = 2 }
+  dbo close
+  sqlite3rbu rbu test.db rbu.db
+  rbu step
+} {SQLITE_ERROR}
+do_test 4.7.2 {
+  list [catch {rbu close} msg] $msg
+} {1 {SQLITE_ERROR - rbu_state mismatch error}}
+
+finish_test
diff --git a/ext/rbu/rbu12.test b/ext/rbu/rbu12.test
new file mode 100644
index 0000000000000000000000000000000000000000..a753ef2494fd0f00187c39f230d379fd80e90375
--- /dev/null
+++ b/ext/rbu/rbu12.test
@@ -0,0 +1,232 @@
+# 2015 February 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname [info script]] rbu_common.tcl]
+if_no_rbu_support { finish_test ; return }
+source $testdir/lock_common.tcl
+set ::testprefix rbu12
+
+set setup_sql {
+  DROP TABLE IF EXISTS xx;
+  DROP TABLE IF EXISTS xy;
+  CREATE TABLE xx(a, b, c PRIMARY KEY);
+  INSERT INTO xx VALUES(1, 2, 3);
+  CREATE TABLE xy(a, b, c PRIMARY KEY);
+
+  ATTACH 'rbu.db' AS rbu;
+    DROP TABLE IF EXISTS data_xx;
+    CREATE TABLE rbu.data_xx(a, b, c, rbu_control);
+    INSERT INTO data_xx VALUES(4, 5, 6, 0);
+    INSERT INTO data_xx VALUES(7, 8, 9, 0);
+    CREATE TABLE rbu.data_xy(a, b, c, rbu_control);
+    INSERT INTO data_xy VALUES(10, 11, 12, 0);
+  DETACH rbu;
+}
+
+do_multiclient_test tn {
+
+  # Initialize a target (test.db) and rbu (rbu.db) database.
+  #
+  forcedelete rbu.db
+  sql1 $setup_sql
+
+  # Using connection 2, open a read transaction on the target database.
+  # RBU will still be able to generate "test.db-oal", but it will not be
+  # able to rename it to "test.db-wal".
+  #
+  do_test 1.$tn.1 {
+    sql2 { BEGIN; SELECT * FROM xx; }
+  } {1 2 3}
+  do_test 1.$tn.2 {
+    sqlite3rbu rbu test.db rbu.db
+    while 1 {
+      set res [rbu step]
+      if {$res!="SQLITE_OK"} break
+    }
+    set res
+  } {SQLITE_BUSY}
+
+  do_test 1.$tn.3 { sql2 { SELECT * FROM xx; } } {1 2 3}
+  do_test 1.$tn.4 { sql2 { SELECT * FROM xy; } } {}
+  do_test 1.$tn.5 {
+    list [file exists test.db-wal] [file exists test.db-oal]
+  } {0 1}
+  do_test 1.$tn.6 { sql2 COMMIT } {}
+
+  # The rbu object that hit the SQLITE_BUSY error above cannot be reused.
+  # It is stuck in a permanent SQLITE_BUSY state at this point.
+  #
+  do_test 1.$tn.7 { rbu step } {SQLITE_BUSY}
+  do_test 1.$tn.8 { 
+    list [catch { rbu close } msg] $msg 
+  } {1 SQLITE_BUSY}
+
+  do_test 1.$tn.9.1 { sql2 { BEGIN EXCLUSIVE } } {}
+  do_test 1.$tn.9.2 {
+    sqlite3rbu rbu test.db rbu.db
+    rbu step
+  } {SQLITE_BUSY}
+  do_test 1.$tn.9.3 {
+    list [catch { rbu close } msg] $msg 
+  } {1 {SQLITE_BUSY - database is locked}}
+  do_test 1.$tn.9.4 { sql2 COMMIT } {}
+
+  sqlite3rbu rbu test.db rbu.db
+  do_test 1.$tn.10.1 { sql2 { BEGIN EXCLUSIVE } } {}
+  do_test 1.$tn.10.2 {
+    rbu step
+  } {SQLITE_BUSY}
+  do_test 1.$tn.10.3 {
+    list [catch { rbu close } msg] $msg 
+  } {1 SQLITE_BUSY}
+  do_test 1.$tn.10.4 { sql2 COMMIT } {}
+
+  # A new rbu object can finish the work though.
+  #
+  do_test 1.$tn.11 {
+    sqlite3rbu rbu test.db rbu.db
+    rbu step
+  } {SQLITE_OK}
+  do_test 1.$tn.12 {
+    list [file exists test.db-wal] [file exists test.db-oal]
+  } {1 0}
+  do_test 1.$tn.13 {
+    while 1 {
+      set res [rbu step]
+      if {$res!="SQLITE_OK"} break
+    }
+    set res
+  } {SQLITE_DONE}
+
+  do_test 1.$tn.14 {
+    rbu close
+  } {SQLITE_DONE}
+}
+
+do_multiclient_test tn {
+
+  # Initialize a target (test.db) and rbu (rbu.db) database.
+  #
+  forcedelete rbu.db
+  sql1 $setup_sql
+
+  do_test 2.$tn.1 {
+    sqlite3rbu rbu test.db rbu.db
+    while {[file exists test.db-wal]==0} {
+      if {[rbu step]!="SQLITE_OK"} {error "problem here...."}
+    }
+    rbu close
+  } {SQLITE_OK}
+
+
+  do_test 2.$tn.2 { sql2 { BEGIN IMMEDIATE } } {}
+
+  do_test 2.$tn.3 { 
+    sqlite3rbu rbu test.db rbu.db
+    rbu step 
+  } {SQLITE_BUSY}
+
+  do_test 2.$tn.4 { list [catch { rbu close } msg] $msg } {1 SQLITE_BUSY}
+
+  do_test 2.$tn.5 { 
+    sql2 { SELECT * FROM xx ; COMMIT }
+  } {1 2 3 4 5 6 7 8 9}
+
+  do_test 2.$tn.6 {
+    sqlite3rbu rbu test.db rbu.db
+    rbu step
+    rbu close
+  } {SQLITE_OK}
+
+  do_test 2.$tn.7 { sql2 { BEGIN EXCLUSIVE } } {}
+
+  do_test 2.$tn.8 { 
+    sqlite3rbu rbu test.db rbu.db
+    rbu step 
+  } {SQLITE_BUSY}
+  do_test 2.$tn.9 { list [catch { rbu close } msg] $msg } {1 SQLITE_BUSY}
+  do_test 2.$tn.10 { 
+    sql2 { SELECT * FROM xx ; COMMIT }
+  } {1 2 3 4 5 6 7 8 9}
+
+  do_test 2.$tn.11 {
+    sqlite3rbu rbu test.db rbu.db
+    while {[rbu step]=="SQLITE_OK"} {}
+    rbu close
+  } {SQLITE_DONE}
+
+}
+
+#-------------------------------------------------------------------------
+# Test that "PRAGMA data_version" works when an RBU client writes the
+# database.
+#
+do_multiclient_test tn {
+
+  # Initialize a target (test.db) and rbu (rbu.db) database.
+  #
+  forcedelete rbu.db
+  sql1 $setup_sql
+
+  # Check the initial database contains table "xx" with a single row.
+  # Also save the current values of "PRAGMA data-version" for [db1] 
+  # and [db2].
+  #
+  do_test 2.$tn.1 {
+    list [sql1 { SELECT count(*) FROM xx }] [sql2 { SELECT count(*) FROM xx }]
+  } {1 1}
+  set V1 [sql1 {PRAGMA data_version}] 
+  set V2 [sql2 {PRAGMA data_version}]
+
+  # Check the values of data-version have not magically changed.
+  #
+  do_test 2.$tn.2 {
+    list [sql1 {PRAGMA data_version}] [sql2 {PRAGMA data_version}]
+  } [list $V1 $V2]
+
+  # Start stepping the RBU. From the point of view of [db1] and [db2], the 
+  # data-version values remain unchanged until the database contents are
+  # modified. At which point the values are incremented.
+  #
+  sqlite3rbu rbu test.db rbu.db
+  set x 0
+  while {[db one {SELECT count(*) FROM xx}]==1} {
+    do_test 2.$tn.3.[incr x] {
+      list [sql1 {PRAGMA data_version}] [sql2 {PRAGMA data_version}]
+    } [list $V1 $V2]
+    rbu step
+  }
+  do_test 2.$tn.5.1 { expr {$V1 < [sql1 {PRAGMA data_version}]} } 1
+  do_test 2.$tn.5.2 { expr {$V2 < [sql2 {PRAGMA data_version}]} } 1
+
+  # Check the db contents is as expected.
+  #
+  do_test 2.$tn.4 {
+    list [sql1 {SELECT count(*) FROM xx}] [sql2 {SELECT count(*) FROM xx}]
+  } {3 3}
+
+  set V1 [sql1 {PRAGMA data_version}] 
+  set V2 [sql2 {PRAGMA data_version}]
+
+  # Finish applying the RBU (i.e. do the incremental checkpoint). Check that
+  # this does not cause the data-version values to change.
+  #
+  while {[rbu step]=="SQLITE_OK"} { }
+  rbu close
+
+  do_test 2.$tn.6 {
+    list [sql1 {PRAGMA data_version}] [sql2 {PRAGMA data_version}]
+  } [list $V1 $V2]
+
+}
+
+finish_test
diff --git a/ext/rbu/rbu13.test b/ext/rbu/rbu13.test
new file mode 100644
index 0000000000000000000000000000000000000000..9bf2adc6fabf2dde2435d1d94818df3ded67a3e8
--- /dev/null
+++ b/ext/rbu/rbu13.test
@@ -0,0 +1,62 @@
+# 2015 February 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test an RBU update that features lots of different rbu_control strings
+# for UPDATE statements. This tests RBU's internal UPDATE statement cache.
+#
+
+source [file join [file dirname [info script]] rbu_common.tcl]
+if_no_rbu_support { finish_test ; return }
+source $testdir/lock_common.tcl
+set ::testprefix rbu13
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a PRIMARY KEY, b, c, d, e, f, g, h);
+  WITH ii(i) AS (SELECT 0 UNION ALL SELECT i+1 FROM ii WHERE i<127)
+  INSERT INTO t1 SELECT i, 0, 0, 0, 0, 0, 0, 0 FROM ii;
+}
+
+forcedelete rbu.db
+do_execsql_test 1.1 {
+  ATTACH 'rbu.db' AS rbu;
+  CREATE TABLE rbu.data_t1(a, b, c, d, e, f, g, h, rbu_control);
+}
+
+do_test 1.2 {
+  for {set i 0} {$i<128} {incr i} {
+    set control "."
+    for {set bit 6} {$bit>=0} {incr bit -1} {
+      if { $i & (1<<$bit) } {
+        append control "x"
+      } else {
+        append control "."
+      }
+    }
+    execsql { INSERT INTO data_t1 VALUES($i, 1, 1, 1, 1, 1, 1, 1, $control) }
+  }
+} {}
+
+do_test 1.3 {
+  sqlite3rbu rbu test.db rbu.db
+  while 1 {
+    set rc [rbu step]
+    if {$rc!="SQLITE_OK"} break
+  }
+  rbu close
+} {SQLITE_DONE}
+
+do_execsql_test 1.4 {
+  SELECT count(*) FROM t1 WHERE
+  a == ( (b<<6) + (c<<5) + (d<<4) + (e<<3) + (f<<2) + (g<<1) + (h<<0) )
+} {128}
+
+
+finish_test
diff --git a/ext/rbu/rbu14.test b/ext/rbu/rbu14.test
new file mode 100644
index 0000000000000000000000000000000000000000..ac5b92c6c7870e098e0f7d9906ff6516ba5d2807
--- /dev/null
+++ b/ext/rbu/rbu14.test
@@ -0,0 +1,92 @@
+# 2015 July 25
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test that an RBU data_xxx table may be a view instead of a regular
+# table.
+#
+
+source [file join [file dirname [info script]] rbu_common.tcl]
+if_no_rbu_support { finish_test ; return }
+source $testdir/lock_common.tcl
+set ::testprefix rbu14
+
+
+foreach {tn schema} {
+  1 {
+    CREATE TABLE t1(a PRIMARY KEY, b, c);
+    CREATE TABLE t2(a PRIMARY KEY, b, c);
+  }
+  2 {
+    CREATE TABLE t1(a PRIMARY KEY, b, c);
+    CREATE TABLE t2(a PRIMARY KEY, b, c);
+    CREATE INDEX i1 ON t1(b, c);
+    CREATE INDEX i2 ON t2(b, c);
+  }
+  3 {
+    CREATE TABLE t1(a PRIMARY KEY, b, c) WITHOUT ROWID;
+    CREATE TABLE t2(a PRIMARY KEY, b, c) WITHOUT ROWID;
+  }
+  4 {
+    CREATE TABLE t1(a PRIMARY KEY, b, c) WITHOUT ROWID;
+    CREATE TABLE t2(a PRIMARY KEY, b, c) WITHOUT ROWID;
+    CREATE INDEX i1 ON t1(b, c);
+    CREATE INDEX i2 ON t2(b, c);
+  }
+} {
+  reset_db
+
+  execsql $schema
+  execsql {
+    INSERT INTO t1 VALUES(50, 50, 50);
+    INSERT INTO t1 VALUES(51, 51, 51);
+    INSERT INTO t2 VALUES(50, 50, 50);
+    INSERT INTO t2 VALUES(51, 51, 51);
+  }
+
+  forcedelete rbu.db
+  do_execsql_test $tn.1 {
+    ATTACH 'rbu.db' AS rbu;
+    CREATE TABLE rbu.stuff(tbl, a, b, c, rbu_control);
+    INSERT INTO stuff VALUES
+      ('t1', 1, 2, 3, 0),                   -- insert into t1
+      ('t2', 4, 5, 6, 0),                   -- insert into t2
+      ('t1', 50, NULL, NULL, 1),            -- delete from t1
+      ('t2', 51, NULL, NULL, 1);            -- delete from t2
+
+    CREATE VIEW rbu.data_t1 AS 
+    SELECT a, b, c, rbu_control FROM stuff WHERE tbl='t1';
+    CREATE VIEW rbu.data_t2 AS 
+    SELECT a, b, c, rbu_control FROM stuff WHERE tbl='t2';
+  }
+
+  do_test $tn.2 {
+    while 1 {
+      sqlite3rbu rbu test.db rbu.db
+      set rc [rbu step]
+      rbu close
+      if {$rc != "SQLITE_OK"} break
+    }
+    set rc
+  } {SQLITE_DONE}
+
+  do_execsql_test $tn.3.1 {
+    SELECT * FROM t1 ORDER BY a;
+  } {1 2 3 51 51 51}
+
+  do_execsql_test $tn.3.2 {
+    SELECT * FROM t2 ORDER BY a;
+  } {4 5 6 50 50 50}
+
+  integrity_check $tn.4
+}
+
+
+finish_test
diff --git a/ext/rbu/rbu3.test b/ext/rbu/rbu3.test
new file mode 100644
index 0000000000000000000000000000000000000000..4ea6adbcdaaac27571168f4ddd423ff5e3924698
--- /dev/null
+++ b/ext/rbu/rbu3.test
@@ -0,0 +1,200 @@
+# 2014 August 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname [info script]] rbu_common.tcl]
+if_no_rbu_support { finish_test ; return }
+set ::testprefix rbu3
+
+
+# Run the RBU in file $rbu on target database $target until completion.
+#
+proc run_rbu {target rbu} {
+  sqlite3rbu rbu $target $rbu
+  while { [rbu step]=="SQLITE_OK" } {}
+  rbu close
+}
+
+forcedelete test.db-oal rbu.db
+reset_db
+
+#--------------------------------------------------------------------
+# Test that for an RBU to be applied, no corruption results if the
+# affinities on the source and target table do not match.
+#
+do_execsql_test 1.0 {
+  CREATE TABLE x1(a INTEGER PRIMARY KEY, b TEXT, c REAL);
+  CREATE INDEX i1 ON x1(b, c);
+} {}
+
+do_test 1.1 {
+  sqlite3 db2 rbu.db
+  db2 eval {
+    CREATE TABLE data_x1(a, b, c, rbu_control);
+    INSERT INTO data_x1 VALUES(1, '123', '123', 0);
+    INSERT INTO data_x1 VALUES(2, 123, 123, 0);
+  }
+  db2 close
+  run_rbu test.db rbu.db
+} {SQLITE_DONE}
+
+do_execsql_test 1.2 {
+  PRAGMA integrity_check;
+} {ok}
+
+#--------------------------------------------------------------------
+# Test that NULL values may not be inserted into INTEGER PRIMARY KEY
+# columns.
+#
+forcedelete rbu.db
+reset_db
+
+do_execsql_test 2.0 {
+  CREATE TABLE x1(a INTEGER PRIMARY KEY, b TEXT, c REAL);
+  CREATE INDEX i1 ON x1(b, c);
+} {}
+
+foreach {tn rbudb} {
+  1 {
+    CREATE TABLE data_x1(a, b, c, rbu_control);
+    INSERT INTO data_x1 VALUES(NULL, 'a', 'b', 0);
+  }
+
+  2 {
+    CREATE TABLE data_x1(c, b, a, rbu_control);
+    INSERT INTO data_x1 VALUES('b', 'a', NULL, 0);
+  }
+} {
+  do_test 2.$tn.1 {
+    forcedelete rbu.db
+    sqlite3 db2 rbu.db
+    db2 eval $rbudb
+    db2 close
+    list [catch { run_rbu test.db rbu.db } msg] $msg
+  } {1 {SQLITE_MISMATCH - datatype mismatch}}
+
+  do_execsql_test 2.1.2 {
+    PRAGMA integrity_check;
+  } {ok}
+}
+
+#--------------------------------------------------------------------
+# Test that missing columns are detected.
+#
+forcedelete rbu.db
+reset_db
+
+do_execsql_test 2.0 {
+  CREATE TABLE x1(a INTEGER PRIMARY KEY, b, c);
+  CREATE INDEX i1 ON x1(b, c);
+} {}
+
+do_test 2.1 {
+  sqlite3 db2 rbu.db
+  db2 eval {
+    CREATE TABLE data_x1(a, b, rbu_control);
+    INSERT INTO data_x1 VALUES(1, 'a', 0);
+  }
+  db2 close
+  list [catch { run_rbu test.db rbu.db } msg] $msg
+} {1 {SQLITE_ERROR - column missing from data_x1: c}}
+
+do_execsql_test 2.2 {
+  PRAGMA integrity_check;
+} {ok}
+
+# Also extra columns.
+#
+do_execsql_test 2.3 {
+  CREATE TABLE x2(a INTEGER PRIMARY KEY, b, c);
+  CREATE INDEX i2 ON x2(b, c);
+} {}
+
+do_test 2.4 {
+  forcedelete rbu.db
+  sqlite3 db2 rbu.db
+  db2 eval {
+    CREATE TABLE data_x2(a, b, c, d, rbu_control);
+    INSERT INTO data_x2 VALUES(1, 'a', 2, 3, 0);
+  }
+  db2 close
+  list [catch { run_rbu test.db rbu.db } msg] $msg
+} {1 SQLITE_ERROR}
+
+do_execsql_test 2.5 {
+  PRAGMA integrity_check;
+} {ok}
+
+
+#-------------------------------------------------------------------------
+# Test that sqlite3rbu_create_vfs() returns an error if the requested 
+# parent VFS is unknown.
+#
+# And that nothing disasterous happens if a VFS name passed to
+# sqlite3rbu_destroy_vfs() is unknown or not an RBU vfs.
+#
+do_test 3.1 {
+  list [catch {sqlite3rbu_create_vfs xyz nosuchparent} msg] $msg
+} {1 SQLITE_NOTFOUND}
+
+do_test 3.2 {
+  sqlite3rbu_destroy_vfs nosuchvfs
+  sqlite3rbu_destroy_vfs unix
+  sqlite3rbu_destroy_vfs win32
+} {}
+
+#-------------------------------------------------------------------------
+# Test that it is an error to specify an explicit VFS that does not 
+# include rbu VFS functionality.
+#
+do_test 4.1 {
+  testvfs tvfs
+  sqlite3rbu rbu file:test.db?vfs=tvfs rbu.db 
+  list [catch { rbu step } msg] $msg
+} {0 SQLITE_ERROR}
+do_test 4.2 {
+  list [catch { rbu close } msg] $msg
+} {1 {SQLITE_ERROR - rbu vfs not found}}
+tvfs delete
+
+#-------------------------------------------------------------------------
+# Test a large rbu update to ensure that wal_autocheckpoint does not get
+# in the way.
+#
+forcedelete rbu.db
+reset_db
+do_execsql_test 5.1 {
+  CREATE TABLE x1(a, b, c, PRIMARY KEY(a)) WITHOUT ROWID;
+  CREATE INDEX i1 ON x1(a);
+
+  ATTACH 'rbu.db' AS rbu;
+  CREATE TABLE rbu.data_x1(a, b, c, rbu_control);
+  WITH s(a, b, c) AS (
+    SELECT randomblob(300), randomblob(300), 1
+    UNION ALL
+    SELECT randomblob(300), randomblob(300), c+1 FROM s WHERE c<2000
+  )
+  INSERT INTO data_x1 SELECT a, b, c, 0 FROM s;
+}
+
+do_test 5.2 {
+  sqlite3rbu rbu test.db rbu.db
+  while {[rbu step]=="SQLITE_OK" && [file exists test.db-wal]==0} {}
+  rbu close
+} {SQLITE_OK}
+
+do_test 5.3 {
+  expr {[file size test.db-wal] > (1024 * 1200)}
+} 1
+
+do_test 6.1 { sqlite3rbu_internal_test } {}
+
+finish_test
diff --git a/ext/rbu/rbu5.test b/ext/rbu/rbu5.test
new file mode 100644
index 0000000000000000000000000000000000000000..2ae69e96526c8aa68714f30ec9b9b93572c28426
--- /dev/null
+++ b/ext/rbu/rbu5.test
@@ -0,0 +1,303 @@
+# 2014 August 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test some properties of the pager_rbu_mode and rbu_mode pragmas.
+#
+
+source [file join [file dirname [info script]] rbu_common.tcl]
+if_no_rbu_support { finish_test ; return }
+set ::testprefix rbu5
+
+
+# Return a list of the primary key columns for table $tbl in the database
+# opened by database handle $db.
+#
+proc pkcols {db tbl} {
+  set ret [list]
+  $db eval "PRAGMA table_info = '$tbl'" {
+    if {$pk} { lappend ret $name }
+  }
+  return $ret
+}
+
+# Return a list of all columns for table $tbl in the database opened by 
+# database handle $db.
+#
+proc allcols {db tbl} {
+  set ret [list]
+  $db eval "PRAGMA table_info = '$tbl'" {
+    lappend ret $name
+  }
+  return $ret
+}
+
+# Return a checksum on all tables and data in the main database attached
+# to database handle $db. It is possible to add indexes without changing
+# the checksum.
+#
+proc datacksum {db} {
+
+  $db eval { SELECT name FROM sqlite_master WHERE type='table' } {
+    append txt $name
+    set cols [list]
+    set order [list]
+    set cnt 0
+    $db eval "PRAGMA table_info = $name" x {
+      lappend cols "quote($x(name))"
+      lappend order [incr cnt]
+    }
+    set cols [join $cols ,]
+    set order [join $order ,]
+    append txt [$db eval "SELECT $cols FROM $name ORDER BY $order"]
+  }
+  return "[string length $txt]-[md5 $txt]"
+}
+
+proc ucontrol {args} {
+  set ret ""
+  foreach a $args {
+    if {$a} {
+      append ret .
+    } else {
+      append ret x
+    }
+  }
+  return $ret
+}
+
+# Argument $target is the name of an SQLite database file. $sql is an SQL
+# script containing INSERT, UPDATE and DELETE statements to execute against
+# it. This command creates an RBU update database in file $rbu that has
+# the same effect as the script. The target database is not modified by
+# this command.
+#
+proc generate_rbu_db {target rbu sql} {
+
+  forcedelete $rbu
+  forcecopy $target copy.db
+
+  # Evaluate the SQL script to modify the contents of copy.db.
+  #
+  sqlite3 dbRbu copy.db
+  dbRbu eval $sql
+
+  dbRbu function ucontrol ucontrol
+  
+  # Evaluate the SQL script to modify the contents of copy.db.
+  set ret [datacksum dbRbu]
+
+  dbRbu eval { ATTACH $rbu AS rbu }
+  dbRbu eval { ATTACH $target AS orig }
+
+  dbRbu eval { SELECT name AS tbl FROM sqlite_master WHERE type = 'table' } {
+    set pk [pkcols dbRbu $tbl]
+    set cols [allcols dbRbu $tbl]
+
+    # A WHERE clause to test that the PK columns match.
+    #
+    set where [list]
+    foreach c $pk { lappend where "main.$tbl.$c IS orig.$tbl.$c" }
+    set where [join $where " AND "]
+    
+    # A WHERE clause to test that all columns match.
+    #
+    set where2 [list]
+    foreach c $cols { lappend where2 "main.$tbl.$c IS orig.$tbl.$c" }
+    set ucontrol "ucontrol([join $where2 ,])"
+    set where2 [join $where2 " AND "]
+
+    # Create a data_xxx table in the RBU update database.
+    dbRbu eval "
+      CREATE TABLE rbu.data_$tbl AS SELECT *, '' AS rbu_control 
+      FROM main.$tbl LIMIT 0
+    "
+
+    # Find all new rows INSERTed by the script.
+    dbRbu eval "
+      INSERT INTO rbu.data_$tbl 
+          SELECT *, 0 AS rbu_control FROM main.$tbl
+          WHERE NOT EXISTS (
+            SELECT 1 FROM orig.$tbl WHERE $where
+          )
+    "
+    
+    # Find all old rows DELETEd by the script.
+    dbRbu eval "
+      INSERT INTO rbu.data_$tbl 
+          SELECT *, 1 AS rbu_control FROM orig.$tbl
+          WHERE NOT EXISTS (
+            SELECT 1 FROM main.$tbl WHERE $where
+          )
+    "
+    
+    # Find all rows UPDATEd by the script.
+    set origcols [list]
+    foreach c $cols { lappend origcols "main.$tbl.$c" }
+    set origcols [join $origcols ,]
+    dbRbu eval "
+      INSERT INTO rbu.data_$tbl
+          SELECT $origcols, $ucontrol AS rbu_control 
+          FROM orig.$tbl, main.$tbl
+          WHERE $where AND NOT ($where2)
+    "
+
+  }
+
+  dbRbu close
+  forcedelete copy.db
+
+  return $ret
+}
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+  CREATE TABLE t2(x, y, z, PRIMARY KEY(y, z)) WITHOUT ROWID;
+
+  INSERT INTO t1 VALUES(1, 2, 3);
+  INSERT INTO t1 VALUES(2, 4, 6);
+  INSERT INTO t1 VALUES(3, 6, 9);
+
+  INSERT INTO t2 VALUES(1, 2, 3);
+  INSERT INTO t2 VALUES(2, 4, 6);
+  INSERT INTO t2 VALUES(3, 6, 9);
+}
+db close
+
+set cksum [generate_rbu_db test.db rbu.db {
+  INSERT INTO t1 VALUES(4, 8, 12);
+  DELETE FROM t1 WHERE a = 2;
+  UPDATE t1 SET c = 15 WHERE a=3;
+
+  INSERT INTO t2 VALUES(4, 8, 12);
+  DELETE FROM t2 WHERE x = 2;
+  UPDATE t2 SET x = 15 WHERE z=9;
+}]
+
+foreach {tn idx} {
+  1 {
+  }
+  2 {
+    CREATE INDEX i1 ON t1(a, b, c);
+    CREATE INDEX i2 ON t2(x, y, z);
+  }
+} {
+  foreach cmd {run step} {
+    forcecopy test.db test.db2
+    forcecopy rbu.db rbu.db2
+
+    sqlite3 db test.db2
+    db eval $idx
+
+    do_test 1.$tn.$cmd.1 {
+      ${cmd}_rbu test.db2 rbu.db2
+      datacksum db
+    } $cksum
+
+    do_test 1.$tn.$cmd.2 {
+      db eval { PRAGMA integrity_check } 
+    } {ok}
+
+    db close
+  }
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 2.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c, d, e);
+  INSERT INTO t1 VALUES(-750250,'fyetckfaagjkzqjx',-185831,X'FEAD',444258.29);
+  INSERT INTO t1 VALUES(649081,NULL,X'7DF25BF78778',-342324.63,'akvspktocwozo');
+  INSERT INTO t1 VALUES(-133045,-44822.31,X'',287935,NULL);
+  INSERT INTO t1 VALUES(202132,NULL,X'5399','cujsjtspryqeyovcdpz','m');
+  INSERT INTO t1 VALUES(302910,NULL,'dvdhivtfkaedzhdcnn',-717113.41,688487);
+  INSERT INTO t1 VALUES(-582327,X'7A267A',X'7E6B3CFE5CB9','zacuzilrok',-196478);
+  INSERT INTO t1 VALUES(-190462,X'D1A087E7D68D9578','lsmleti',NULL,-928094);
+  INSERT INTO t1 VALUES(-467665,176344.57,-536684.23,828876.22,X'903E');
+  INSERT INTO t1 VALUES(-629138,632630.29,X'28D6',-774501,X'819BBBFC65');
+  INSERT INTO t1 VALUES(-828110,-54379.24,-881121.44,X'',X'8D5A894F0D');
+
+  CREATE TABLE t2(a PRIMARY KEY, b, c, d, e) WITHOUT ROWID;
+  INSERT INTO t2 VALUES(-65174,X'AC1DBFFE27310F',-194471.08,347988,X'84041BA6F9BDDE86A8');
+  INSERT INTO t2 VALUES('bzbpi',-952693.69,811628.25,NULL,-817434);
+  INSERT INTO t2 VALUES(-643830,NULL,'n',NULL,'dio');
+  INSERT INTO t2 VALUES('rovoenxxj',NULL,'owupbtdcoxxnvg',-119676,X'55431DFA');
+  INSERT INTO t2 VALUES(899770,'jlygdl',X'DBCA4D1A',NULL,-631773);
+  INSERT INTO t2 VALUES(334698.80,NULL,-697585.58,-89277,-817352);
+  INSERT INTO t2 VALUES(X'1A9EB7547A4AAF38','aiprdhkpzdz','anw','szvjbwdvzucybpwwqjt',X'53');
+  INSERT INTO t2 VALUES(713220,NULL,'hfcqhqzjuqplvkum',X'20B076075649DE','fthgpvqdyy');
+  INSERT INTO t2 VALUES(763908,NULL,'xgslzcpvwfknbr',X'75',X'668146');
+  INSERT INTO t2 VALUES(X'E1BA2B6BA27278','wjbpd',NULL,139341,-290086.15);
+}
+db close
+
+set cksum [generate_rbu_db test.db rbu.db {
+INSERT INTO t2 VALUES(222916.23,'idh',X'472C517405',X'E3',X'7C4F31824669');
+INSERT INTO t2 VALUES('xcndjwafcoxwxizoktd',-319567.21,NULL,-720906.43,-577170);
+INSERT INTO t2 VALUES(376369.99,-536058,'yoaiurfqupdscwc',X'29EC8A2542EC3953E9',-740485.22);
+INSERT INTO t2 VALUES(X'0EFB4DC50693',-175590.83,X'1779E253CAB5B1789E',X'BC6903',NULL);
+INSERT INTO t2 VALUES(-288299,'hfrp',NULL,528477,730676.77);
+DELETE FROM t2 WHERE a < -60000;
+
+UPDATE t2 SET b = 'pgnnaaoflnw' WHERE a = 'bzbpi';
+UPDATE t2 SET c = -675583 WHERE a = 'rovoenxxj';
+UPDATE t2 SET d = X'09CDF2B2C241' WHERE a = 713220;
+
+INSERT INTO t1 VALUES(224938,'bmruycvfznhhnfmgqys','fr',854381,789143);
+INSERT INTO t1 VALUES(-863931,-1386.26,X'2A058540C2FB5C',NULL,X'F9D5990A');
+INSERT INTO t1 VALUES(673696,X'97301F0AC5735F44B5',X'440C',227999.92,-709599.79);
+INSERT INTO t1 VALUES(-243640,NULL,-71718.11,X'1EEFEB38',X'8CC7C55D95E142FBA5');
+INSERT INTO t1 VALUES(275893,X'',375606.30,X'0AF9EC334711FB',-468194);
+DELETE FROM t1 WHERE a > 200000;
+
+UPDATE t1 SET b = 'pgnnaaoflnw' WHERE a = -190462;
+UPDATE t1 SET c = -675583 WHERE a = -467665;
+UPDATE t1 SET d = X'09CDF2B2C241' WHERE a = -133045;
+
+}]
+
+foreach {tn idx} {
+  1 {
+  }
+  2 {
+    CREATE UNIQUE INDEX i1 ON t1(b, c, d);
+    CREATE UNIQUE INDEX i2 ON t1(d, e, a);
+    CREATE UNIQUE INDEX i3 ON t1(e, d, c, b);
+
+    CREATE UNIQUE INDEX i4 ON t2(b, c, d);
+    CREATE UNIQUE INDEX i5 ON t2(d, e, a);
+    CREATE UNIQUE INDEX i6 ON t2(e, d, c, b);
+  }
+} {
+  foreach cmd {run step} {
+    forcecopy test.db test.db2
+    forcecopy rbu.db rbu.db2
+
+    sqlite3 db test.db2
+    db eval $idx
+
+    do_test 2.$tn.$cmd.1 {
+      ${cmd}_rbu test.db2 rbu.db2
+      datacksum db
+    } $cksum
+
+    do_test 2.$tn.$cmd.2 {
+      db eval { PRAGMA integrity_check } 
+    } {ok}
+
+    db close
+  }
+}
+
+
+finish_test
diff --git a/ext/rbu/rbu6.test b/ext/rbu/rbu6.test
new file mode 100644
index 0000000000000000000000000000000000000000..29d4c5e1a2f0ac52c14997ffc4b977d1d0290635
--- /dev/null
+++ b/ext/rbu/rbu6.test
@@ -0,0 +1,100 @@
+# 2014 October 21
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains tests for the RBU module. Specifically, it tests the
+# outcome of some other client writing to the database while an RBU update
+# is being applied.
+
+source [file join [file dirname [info script]] rbu_common.tcl]
+if_no_rbu_support { finish_test ; return }
+set ::testprefix rbu6
+
+proc setup_test {} {
+  reset_db
+  execsql {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b UNIQUE);
+    CREATE TABLE t2(a INTEGER PRIMARY KEY, b UNIQUE);
+    CREATE TABLE t3(a INTEGER PRIMARY KEY, b UNIQUE);
+  }
+  db close
+
+  forcedelete rbu.db
+  sqlite3 rbu rbu.db
+  rbu eval {
+    CREATE TABLE data_t1(a, b, rbu_control);
+    CREATE TABLE data_t2(a, b, rbu_control);
+    CREATE TABLE data_t3(a, b, rbu_control);
+    INSERT INTO data_t1 VALUES(1, 't1', 0);
+    INSERT INTO data_t2 VALUES(2, 't2', 0);
+    INSERT INTO data_t3 VALUES(3, 't3', 0);
+  }
+  rbu close
+}
+
+# Test the outcome of some other client writing the db while the *-oal 
+# file is being generated. Once this has happened, the update cannot be
+# progressed.
+#
+for {set nStep 1} {$nStep < 8} {incr nStep} {
+  do_test 1.$nStep.1 {
+    setup_test
+    sqlite3rbu rbu test.db rbu.db
+    for {set i 0} {$i<$nStep} {incr i} {rbu step}
+
+    rbu close
+    sqlite3 db test.db
+    execsql { INSERT INTO t1 VALUES(5, 'hello') }
+    sqlite3rbu rbu test.db rbu.db
+    rbu step
+  } {SQLITE_BUSY}
+  do_test 1.$nStep.2 {
+    rbu step
+  } {SQLITE_BUSY}
+  do_test 1.$nStep.3 {
+    list [file exists test.db-oal] [file exists test.db-wal]
+  } {1 0}
+  do_test 1.$nStep.4 {
+    list [catch { rbu close } msg] $msg
+  } {1 {SQLITE_BUSY - database modified during rbu update}}
+}
+
+# Test the outcome of some other client writing the db after the *-oal
+# file has been copied to the *-wal path. Once this has happened, any
+# other client writing to the db causes RBU to consider its job finished.
+#
+for {set nStep 8} {$nStep < 20} {incr nStep} {
+  do_test 1.$nStep.1 {
+    setup_test
+    sqlite3rbu rbu test.db rbu.db
+    for {set i 0} {$i<$nStep} {incr i} {rbu step}
+    rbu close
+    sqlite3 db test.db
+    execsql { INSERT INTO t1 VALUES(5, 'hello') }
+    sqlite3rbu rbu test.db rbu.db
+    rbu step
+  } {SQLITE_DONE}
+  do_test 1.$nStep.2 {
+    rbu step
+  } {SQLITE_DONE}
+  do_test 1.$nStep.3 {
+    file exists test.db-oal
+  } {0}
+  do_test 1.$nStep.4 {
+    list [catch { rbu close } msg] $msg
+  } {0 SQLITE_DONE}
+
+  do_execsql_test 1.$nStep.5 {
+    SELECT * FROM t1;
+  } {1 t1 5 hello}
+}
+
+
+finish_test
diff --git a/ext/rbu/rbu7.test b/ext/rbu/rbu7.test
new file mode 100644
index 0000000000000000000000000000000000000000..ffe6ebe1b64f7efa2d8b4b30ac2ed86176fca027
--- /dev/null
+++ b/ext/rbu/rbu7.test
@@ -0,0 +1,106 @@
+# 2014 October 21
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains tests for the RBU module.
+#
+
+
+source [file join [file dirname [info script]] rbu_common.tcl]
+if_no_rbu_support { finish_test ; return }
+set ::testprefix rbu7
+
+# Test index:
+#
+#   1.*: That affinities are correctly applied to values within the 
+#        RBU database.
+#
+#   2.*: Tests for multi-column primary keys.
+#
+
+do_test 1.0 {
+  execsql {
+    CREATE TABLE t1(a INT PRIMARY KEY, b) WITHOUT ROWID;
+    INSERT INTO t1 VALUES(1, 'abc');
+    INSERT INTO t1 VALUES(2, 'def');
+  }
+
+  forcedelete rbu.db
+  sqlite3 rbu rbu.db
+  rbu eval {
+    CREATE TABLE data_t1(a, b, rbu_control);
+    INSERT INTO data_t1 VALUES('1', NULL, 1);
+  }
+  rbu close
+} {}
+
+do_test 1.1 {
+  sqlite3rbu rbu test.db rbu.db
+  while { [rbu step]=="SQLITE_OK" } {}
+  rbu close
+} {SQLITE_DONE}
+
+sqlite3 db test.db
+do_execsql_test 1.2 {
+  SELECT * FROM t1
+} {2 def}
+
+#-------------------------------------------------------------------------
+#
+foreach {tn tbl} {
+  1 { CREATE TABLE t1(a, b, c, PRIMARY KEY(a, b)) WITHOUT ROWID }
+  2 { CREATE TABLE t1(a, b, c, PRIMARY KEY(a, b)) }
+} {
+  reset_db
+
+  execsql $tbl
+  do_execsql_test 2.$tn.1 {
+    CREATE INDEX t1c ON t1(c);
+    INSERT INTO t1 VALUES(1, 1, 'a');
+    INSERT INTO t1 VALUES(1, 2, 'b');
+    INSERT INTO t1 VALUES(2, 1, 'c');
+    INSERT INTO t1 VALUES(2, 2, 'd');
+  }
+
+  do_test 2.$tn.2 {
+    forcedelete rbu.db
+    sqlite3 rbu rbu.db
+    execsql {
+      CREATE TABLE data_t1(a, b, c, rbu_control);
+      INSERT INTO data_t1 VALUES(3, 1, 'e', 0);
+      INSERT INTO data_t1 VALUES(3, 2, 'f', 0);
+      INSERT INTO data_t1 VALUES(1, 2, NULL, 1);
+      INSERT INTO data_t1 VALUES(2, 1, 'X', '..x');
+    } rbu
+    rbu close
+  } {}
+
+  do_test 2.$tn.3 {
+    set rc "SQLITE_OK"
+    while {$rc == "SQLITE_OK"} {
+      sqlite3rbu rbu test.db rbu.db
+      rbu step
+      set rc [rbu close]
+    } 
+    set rc
+  } {SQLITE_DONE}
+
+  do_execsql_test 2.$tn.1 {
+    SELECT * FROM t1 ORDER BY a, b
+  } {
+    1 1 a
+    2 1 X
+    2 2 d
+    3 1 e
+    3 2 f
+  }
+}
+
+finish_test
diff --git a/ext/rbu/rbu8.test b/ext/rbu/rbu8.test
new file mode 100644
index 0000000000000000000000000000000000000000..b73bde274ca6fc59e90b86a06e45d01f87eef341
--- /dev/null
+++ b/ext/rbu/rbu8.test
@@ -0,0 +1,72 @@
+# 2014 November 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test the rbu_delta() feature.
+#
+
+source [file join [file dirname [info script]] rbu_common.tcl]
+if_no_rbu_support { finish_test ; return }
+set ::testprefix rbu8
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(x, y PRIMARY KEY, z);
+  INSERT INTO t1 VALUES(NULL, 1, 'one');
+  INSERT INTO t1 VALUES(NULL, 2, 'two');
+  INSERT INTO t1 VALUES(NULL, 3, 'three');
+  CREATE INDEX i1z ON t1(z, x);
+}
+
+do_test 1.1 {
+  forcedelete rbu.db
+  sqlite3 db2 rbu.db
+  db2 eval {
+    CREATE TABLE data_t1(x, y, z, rbu_control);
+    INSERT INTO data_t1 VALUES('a',    1, '_i'      , 'x.d');
+    INSERT INTO data_t1 VALUES('b',    2, 2         , '..x');
+    INSERT INTO data_t1 VALUES('_iii', 3, '-III'    , 'd.d');
+  }
+  db2 close
+} {}
+
+do_test 1.2.1 {
+  sqlite3rbu rbu test.db rbu.db
+  rbu step
+} {SQLITE_ERROR}
+do_test 1.2.2 {
+  list [catch {rbu close} msg] $msg
+} {1 {SQLITE_ERROR - no such function: rbu_delta}}
+
+proc rbu_delta {orig new} {
+ return "${orig}${new}"
+}
+
+do_test 1.3.1 {
+  while 1 {
+    sqlite3rbu rbu test.db rbu.db
+    rbu create_rbu_delta
+    set rc [rbu step]
+    if {$rc != "SQLITE_OK"} break
+    rbu close
+  }
+  rbu close
+} {SQLITE_DONE}
+
+do_execsql_test 1.3.2 {
+  SELECT * FROM t1
+} {
+  a    1 one_i
+  {}   2 2
+  _iii 3 three-III
+}
+integrity_check 1.3.3
+
+
+finish_test
diff --git a/ext/rbu/rbu9.test b/ext/rbu/rbu9.test
new file mode 100644
index 0000000000000000000000000000000000000000..499ff09459e90e11cdff238bb68eb8dd6f61c593
--- /dev/null
+++ b/ext/rbu/rbu9.test
@@ -0,0 +1,125 @@
+# 2014 November 21
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test RBU with virtual tables. And tables with no PRIMARY KEY declarations.
+#
+
+source [file join [file dirname [info script]] rbu_common.tcl]
+if_no_rbu_support { finish_test ; return }
+set ::testprefix rbu9
+
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+do_execsql_test 1.1 {
+  CREATE VIRTUAL TABLE f1 USING fts4(a, b, c);
+  INSERT INTO f1(rowid, a, b, c) VALUES(11, 'a', 'b', 'c');
+  INSERT INTO f1(rowid, a, b, c) VALUES(12, 'd', 'e', 'f');
+  INSERT INTO f1(rowid, a, b, c) VALUES(13, 'g', 'h', 'i');
+}
+
+do_test 1.1 {
+  forcedelete rbu.db
+  sqlite3 db2 rbu.db
+  db2 eval {
+    CREATE TABLE data_f1(rbu_rowid, a, b, c, rbu_control);
+    INSERT INTO data_f1 VALUES(14, 'x', 'y', 'z', 0);         -- INSERT
+    INSERT INTO data_f1 VALUES(11, NULL, NULL, NULL, 1);      -- DELETE
+    INSERT INTO data_f1 VALUES(13, NULL, NULL, 'X', '..x');   -- UPDATE
+  }
+  db2 close
+} {}
+
+do_test 1.2.1 {
+  while 1 {
+    sqlite3rbu rbu test.db rbu.db
+    set rc [rbu step]
+    if {$rc != "SQLITE_OK"} break
+    rbu close
+  }
+  rbu close
+} {SQLITE_DONE}
+
+do_execsql_test 1.2.2 { SELECT rowid, * FROM f1 } { 
+  12 d e f
+  13 g h X
+  14 x y z
+}
+do_execsql_test 1.2.3 { INSERT INTO f1(f1) VALUES('integrity-check') }
+integrity_check 1.2.4
+
+#-------------------------------------------------------------------------
+# Tables with no PK declaration.
+#
+
+# Run the RBU in file $rbu on target database $target until completion.
+#
+proc run_rbu {target rbu} {
+  sqlite3rbu rbu $target $rbu
+  while { [rbu step]=="SQLITE_OK" } {}
+  rbu close
+}
+
+foreach {tn idx} {
+  1 { }
+  2 { 
+    CREATE INDEX i1 ON t1(a);
+  }
+  3 { 
+    CREATE INDEX i1 ON t1(b, c);
+    CREATE INDEX i2 ON t1(c, b);
+    CREATE INDEX i3 ON t1(a, a, a, b, b, b, c, c, c);
+  }
+} {
+
+  reset_db
+  do_execsql_test 2.$tn.1 {
+    CREATE TABLE t1(a, b, c);
+    INSERT INTO t1 VALUES(1, 2, 3);
+    INSERT INTO t1 VALUES(4, 5, 6);
+    INSERT INTO t1(rowid, a, b, c) VALUES(-1, 'a', 'b', 'c');
+    INSERT INTO t1(rowid, a, b, c) VALUES(-2, 'd', 'e', 'f');
+  }
+
+  db eval $idx
+  
+  do_test 2.$tn.2 {
+    forcedelete rbu.db
+    sqlite3 db2 rbu.db
+    db2 eval {
+      CREATE TABLE data_t1(rbu_rowid, a, b, c, rbu_control);
+      INSERT INTO data_t1 VALUES(3, 'x', 'y', 'z', 0);
+      INSERT INTO data_t1 VALUES(NULL, 'X', 'Y', 'Z', 0);
+      INSERT INTO data_t1 VALUES('1', NULL, NULL, NULL, 1);
+      INSERT INTO data_t1 VALUES(-2, NULL, NULL, 'fff', '..x');
+    }
+    db2 close
+  } {}
+  
+  run_rbu test.db rbu.db
+  
+  do_execsql_test 2.$tn.3 {
+    SELECT rowid, a, b, c FROM t1 ORDER BY rowid;
+  } {
+    -2 d e fff
+    -1 a b c
+     2 4 5 6
+     3 x y z
+     4 X Y Z
+  }
+  
+  integrity_check 2.$tn.4
+}
+
+
+finish_test
diff --git a/ext/rbu/rbuA.test b/ext/rbu/rbuA.test
new file mode 100644
index 0000000000000000000000000000000000000000..b43d30d4f6d54d4942b22c7c649481c9343ee301
--- /dev/null
+++ b/ext/rbu/rbuA.test
@@ -0,0 +1,80 @@
+# 2014 August 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains tests for the RBU module. More specifically, it
+# contains tests to ensure that it is an error to attempt to update
+# a wal mode database via RBU.
+#
+
+source [file join [file dirname [info script]] rbu_common.tcl]
+if_no_rbu_support { finish_test ; return }
+set ::testprefix rbuA
+
+set db_sql {
+  CREATE TABLE t1(a PRIMARY KEY, b, c);
+}
+set rbu_sql {
+  CREATE TABLE data_t1(a, b, c, rbu_control);
+  INSERT INTO data_t1 VALUES(1, 2, 3, 0);
+  INSERT INTO data_t1 VALUES(4, 5, 6, 0);
+  INSERT INTO data_t1 VALUES(7, 8, 9, 0);
+}
+
+do_test 1.0 {
+  db close
+  forcedelete test.db rbu.db
+
+  sqlite3 db test.db
+  db eval $db_sql
+  db eval { PRAGMA journal_mode = wal }
+  db close
+
+  sqlite3 db rbu.db
+  db eval $rbu_sql
+  db close
+
+  sqlite3rbu rbu test.db rbu.db
+  rbu step
+} {SQLITE_ERROR}
+do_test 1.1 {
+  list [catch { rbu close } msg] $msg
+} {1 {SQLITE_ERROR - cannot update wal mode database}}
+
+do_test 2.0 {
+  forcedelete test.db rbu.db
+
+  sqlite3 db test.db
+  db eval $db_sql
+  db close
+
+  sqlite3 db rbu.db
+  db eval $rbu_sql
+  db close
+
+  sqlite3rbu rbu test.db rbu.db
+  rbu step
+  rbu close
+} {SQLITE_OK}
+
+do_test 2.1 {
+  sqlite3 db test.db
+  db eval {PRAGMA journal_mode = wal}
+  db close
+  sqlite3rbu rbu test.db rbu.db
+  rbu step
+} {SQLITE_ERROR}
+
+do_test 2.2 {
+  list [catch { rbu close } msg] $msg
+} {1 {SQLITE_ERROR - cannot update wal mode database}}
+
+
+finish_test
diff --git a/ext/rbu/rbuB.test b/ext/rbu/rbuB.test
new file mode 100644
index 0000000000000000000000000000000000000000..3e777631d59b8c58416e1591f695f676d76d0c52
--- /dev/null
+++ b/ext/rbu/rbuB.test
@@ -0,0 +1,62 @@
+# 2014 August 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+#
+
+source [file join [file dirname [info script]] rbu_common.tcl]
+if_no_rbu_support { finish_test ; return }
+set ::testprefix rbuB
+
+db close
+sqlite3_shutdown
+test_sqlite3_log xLog
+reset_db
+
+proc xLog {args} { }
+
+set db_sql {
+  CREATE TABLE t1(a PRIMARY KEY, b, c);
+}
+set rbu_sql {
+  CREATE TABLE data_t1(a, b, c, rbu_control);
+  INSERT INTO data_t1 VALUES(1, 2, 3, 0);
+  INSERT INTO data_t1 VALUES(4, 5, 6, 0);
+  INSERT INTO data_t1 VALUES(7, 8, 9, 0);
+}
+
+do_test 1.1 {
+  forcedelete rbu.db
+  sqlite3 rbu rbu.db
+  rbu eval $rbu_sql
+  rbu close
+
+  db eval $db_sql
+} {}
+
+set ::errlog [list]
+proc xLog {err msg} { lappend ::errlog $err }
+do_test 1.2 {
+  run_rbu test.db rbu.db
+} {SQLITE_DONE}
+
+do_test 1.3 {
+  set ::errlog
+} {SQLITE_NOTICE_RECOVER_WAL SQLITE_NOTICE_RBU}
+
+do_execsql_test 1.4 {
+  SELECT * FROM t1
+} {1 2 3 4 5 6 7 8 9}
+
+db close
+sqlite3_shutdown
+test_sqlite3_log 
+sqlite3_initialize
+finish_test
diff --git a/ext/rbu/rbuC.test b/ext/rbu/rbuC.test
new file mode 100644
index 0000000000000000000000000000000000000000..a38a6918a9d1a820e6ab27544087a08dc53c6503
--- /dev/null
+++ b/ext/rbu/rbuC.test
@@ -0,0 +1,142 @@
+# 2016 March 7
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# Tests for RBU focused on the REPLACE operation (rbu_control column
+# contains integer value 2).
+#
+
+source [file join [file dirname [info script]] rbu_common.tcl]
+if_no_rbu_support { finish_test ; return }
+set ::testprefix rbuC
+
+#-------------------------------------------------------------------------
+# This test is actually of an UPDATE directive. Just to establish that
+# these work with UNIQUE indexes before preceding to REPLACE.
+#
+do_execsql_test 1.0 {
+  CREATE TABLE t1(i INTEGER PRIMARY KEY, a, b, c UNIQUE);
+  INSERT INTO t1 VALUES(1, 'a', 'b', 'c');
+}
+
+forcedelete rbu.db
+do_execsql_test 1.1 {
+  ATTACH 'rbu.db' AS rbu;
+  CREATE TABLE rbu.data_t1(i, a, b, c, rbu_control);
+  INSERT INTO data_t1 VALUES(1, 'a', 'b', 'c', '.xxx');
+}
+
+do_test 1.2 {
+  step_rbu test.db rbu.db
+} {SQLITE_DONE}
+
+do_execsql_test 1.3 {
+  SELECT * FROM t1
+} {
+  1 a b c
+}
+
+#-------------------------------------------------------------------------
+#
+foreach {tn schema} {
+  1 {
+    CREATE TABLE t1(i INTEGER PRIMARY KEY, a, b, c UNIQUE);
+    CREATE INDEX t1a ON t1(a);
+  }
+  2 {
+    CREATE TABLE t1(i PRIMARY KEY, a, b, c UNIQUE);
+    CREATE INDEX t1a ON t1(a);
+  }
+  3 {
+    CREATE TABLE t1(i PRIMARY KEY, a, b, c UNIQUE) WITHOUT ROWID;
+    CREATE INDEX t1a ON t1(a);
+  }
+} {
+  reset_db
+  forcedelete rbu.db
+  execsql $schema
+
+  do_execsql_test 2.$tn.0 {
+    INSERT INTO t1 VALUES(1, 'a', 'b', 'c');
+    INSERT INTO t1 VALUES(2, 'b', 'c', 'd');
+    INSERT INTO t1 VALUES(3, 'c', 'd', 'e');
+  }
+  
+  do_execsql_test 2.$tn.1 {
+    ATTACH 'rbu.db' AS rbu;
+    CREATE TABLE rbu.data_t1(i, a, b, c, rbu_control);
+    INSERT INTO data_t1 VALUES(1, 1, 2, 3, 2);
+    INSERT INTO data_t1 VALUES(3, 'c', 'd', 'e', 2);
+    INSERT INTO data_t1 VALUES(4, 'd', 'e', 'f', 2);
+  }
+  
+  do_test 2.$tn.2 {
+    step_rbu test.db rbu.db
+  } {SQLITE_DONE}
+  
+  do_execsql_test 2.$tn.3 {
+    SELECT * FROM t1 ORDER BY i
+  } {
+    1 1 2 3
+    2 b c d
+    3 c d e
+    4 d e f
+  }
+  
+  integrity_check 2.$tn.4
+}
+
+foreach {tn schema} {
+  1 {
+    CREATE TABLE t1(a, b, c UNIQUE);
+    CREATE INDEX t1a ON t1(a);
+  }
+
+  2 {
+    CREATE VIRTUAL TABLE t1 USING fts5(a, b, c);
+  }
+} {
+  if {$tn==2} { ifcapable !fts5 break }
+  reset_db
+  forcedelete rbu.db
+  execsql $schema
+
+  do_execsql_test 3.$tn.0 {
+    INSERT INTO t1 VALUES('a', 'b', 'c');
+    INSERT INTO t1 VALUES('b', 'c', 'd');
+    INSERT INTO t1 VALUES('c', 'd', 'e');
+  }
+  
+  do_execsql_test 3.$tn.1 {
+    ATTACH 'rbu.db' AS rbu;
+    CREATE TABLE rbu.data_t1(rbu_rowid, a, b, c, rbu_control);
+    INSERT INTO data_t1 VALUES(1, 1, 2, 3, 2);
+    INSERT INTO data_t1 VALUES(3, 'c', 'd', 'e', 2);
+    INSERT INTO data_t1 VALUES(4, 'd', 'e', 'f', 2);
+  }
+  
+  do_test 3.$tn.2 {
+    step_rbu test.db rbu.db
+  } {SQLITE_DONE}
+  
+  do_execsql_test 3.$tn.3 {
+    SELECT rowid, * FROM t1 ORDER BY 1
+  } {
+    1 1 2 3
+    2 b c d
+    3 c d e
+    4 d e f
+  }
+  
+  integrity_check 3.$tn.4
+}
+
+
+
+finish_test
diff --git a/ext/rbu/rbu_common.tcl b/ext/rbu/rbu_common.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..57db5a561fa5932b0378c62f20d7f0adf3c25a9f
--- /dev/null
+++ b/ext/rbu/rbu_common.tcl
@@ -0,0 +1,120 @@
+# 2015 Aug 8
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+}
+source $testdir/tester.tcl
+
+proc if_no_rbu_support {tcl} {
+  set bOk 1
+  ifcapable !rbu { set bOk 0 }
+  if {[permutation]=="journaltest"} { set bOk 0 }
+  if {$bOk==0} {
+    set c [catch {uplevel 1 $tcl} r]
+    return -code $c $r
+  } 
+}
+
+proc check_prestep_state {target state} {
+  set oal_exists [file exists $target-oal]
+  set wal_exists [file exists $target-wal]
+  set progress [rbu progress]
+
+  if {($progress==0 && $state!="oal" && $state!="done")
+   || ($oal_exists && $wal_exists)
+   || ($progress>0 && $state=="oal" && (!$oal_exists || $wal_exists))
+   || ($state=="move" && (!$oal_exists || $wal_exists))
+   || ($state=="checkpoint" && ($oal_exists || !$wal_exists))
+   || ($state=="done" && ($oal_exists && $progress!=0))
+  } {
+    error "B: state=$state progress=$progress oal=$oal_exists wal=$wal_exists"
+  }
+}
+
+proc check_poststep_state {rc target state} {
+  if {$rc=="SQLITE_OK" || $rc=="SQLITE_DONE"} {
+    set oal_exists [file exists $target-oal]
+    set wal_exists [file exists $target-wal]
+    if {$state=="move" && ($oal_exists || !$wal_exists)} {
+      error "A: state=$state progress=$progress oal=$oal_exists wal=$wal_exists"
+    }
+  }
+}
+
+# Run the RBU in file $rbu on target database $target until completion.
+#
+proc run_rbu {target rbu} {
+  sqlite3rbu rbu $target $rbu
+  while 1 {
+    set state [rbu state]
+
+    check_prestep_state $target $state
+    set rc [rbu step]
+    check_poststep_state $rc $target $state
+
+    if {$rc!="SQLITE_OK"} break
+  }
+  rbu close
+}
+
+proc step_rbu {target rbu} {
+  while 1 {
+    sqlite3rbu rbu $target $rbu
+    set state [rbu state]
+    check_prestep_state $target $state
+    set rc [rbu step]
+    check_poststep_state $rc $target $state
+    rbu close
+    if {$rc != "SQLITE_OK"} break
+  }
+  set rc
+}
+
+proc step_rbu_legacy {target rbu} {
+  while 1 {
+    sqlite3rbu rbu $target $rbu
+    set state [rbu state]
+    check_prestep_state $target $state
+    set rc [rbu step]
+    check_poststep_state $rc $target $state
+    rbu close
+    if {$rc != "SQLITE_OK"} break
+    sqlite3 tmpdb $rbu
+    tmpdb eval { DELETE FROM rbu_state WHERE k==10 }
+    tmpdb close
+  }
+  set rc
+}
+
+proc do_rbu_vacuum_test {tn step {statedb state.db}} {
+  forcedelete $statedb
+  if {$statedb=="" && $step==1} breakpoint
+  uplevel [list do_test $tn.1 [string map [list %state% $statedb %step% $step] {
+    if {%step%==0} { sqlite3rbu_vacuum rbu test.db {%state%}}
+    while 1 {
+      if {%step%==1} { sqlite3rbu_vacuum rbu test.db {%state%}}
+      set state [rbu state]
+      check_prestep_state test.db $state
+      set rc [rbu step]
+      check_poststep_state $rc test.db $state
+      if {$rc!="SQLITE_OK"} break
+      if {%step%==1} { rbu close }
+    }
+    rbu close
+  }] {SQLITE_DONE}]
+
+  uplevel [list do_execsql_test $tn.2 {
+    PRAGMA integrity_check
+  } ok]
+}
+
diff --git a/ext/rbu/rbubusy.test b/ext/rbu/rbubusy.test
new file mode 100644
index 0000000000000000000000000000000000000000..b4b43219be151d329af5c7461e4c54d101f93e2c
--- /dev/null
+++ b/ext/rbu/rbubusy.test
@@ -0,0 +1,89 @@
+# 2014 August 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+#
+
+source [file join [file dirname [info script]] rbu_common.tcl]
+ifcapable !rbu { finish_test ; return }
+if_no_rbu_support { finish_test ; return }
+set ::testprefix rbubusy
+
+db close
+sqlite3_shutdown
+test_sqlite3_log xLog
+reset_db
+
+set db_sql {
+  CREATE TABLE t1(a PRIMARY KEY, b, c);
+  INSERT INTO t1 VALUES(1000, 2000, 3000);
+}
+
+set rbu_sql {
+  CREATE TABLE data_t1(a, b, c, rbu_control);
+  INSERT INTO data_t1 VALUES(1, 2, 3, 0);
+  INSERT INTO data_t1 VALUES(4, 5, 6, 0);
+  INSERT INTO data_t1 VALUES(7, 8, 9, 0);
+}
+
+do_test 1.1 {
+  forcedelete rbu.db
+  sqlite3 rbu rbu.db
+  rbu eval $rbu_sql
+  rbu close
+
+  db eval $db_sql
+} {}
+
+do_execsql_test 1.2 {
+  BEGIN;
+    SELECT * FROM t1
+} {1000 2000 3000}
+
+do_test 1.3 {
+  sqlite3rbu rbu test.db rbu.db
+  rbu step
+} {SQLITE_OK}
+
+do_test 1.4 {
+  while 1 {
+    set rc [rbu step]
+    if {$rc!="SQLITE_OK"} break
+  }
+  set rc
+} {SQLITE_BUSY}
+
+do_test 1.5 {
+  rbu step
+} {SQLITE_BUSY}
+
+do_test 1.6 {
+  db eval COMMIT
+  rbu step
+} {SQLITE_BUSY}
+catch { rbu close }
+
+do_test 1.7 {
+  sqlite3rbu rbu test.db rbu.db
+  while 1 {
+    set rc [rbu step]
+    if {$rc!="SQLITE_OK"} break
+  }
+  set rc
+} {SQLITE_DONE}
+
+rbu close
+
+db close
+sqlite3_shutdown
+test_sqlite3_log 
+sqlite3_initialize
+finish_test
+
diff --git a/ext/rbu/rbucollate.test b/ext/rbu/rbucollate.test
new file mode 100644
index 0000000000000000000000000000000000000000..beb54aa54e274a9c88303878df831769b90dad25
--- /dev/null
+++ b/ext/rbu/rbucollate.test
@@ -0,0 +1,58 @@
+# 2018 March 22
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname [info script]] rbu_common.tcl]
+if_no_rbu_support { finish_test ; return }
+set ::testprefix rbucollate
+
+ifcapable !icu_collations {
+  finish_test
+  return
+}
+
+# Create a simple RBU database. That expects to write to a table:
+#
+#   CREATE TABLE t1(a PRIMARY KEY, b, c);
+#
+proc create_rbu1 {filename} {
+  forcedelete $filename
+  sqlite3 rbu1 $filename  
+  rbu1 eval {
+    CREATE TABLE data_t1(a, b, c, rbu_control);
+    INSERT INTO data_t1 VALUES('a', 'one', 1, 0);
+    INSERT INTO data_t1 VALUES('b', 'two', 2, 0);
+    INSERT INTO data_t1 VALUES('c', 'three', 3, 0);
+  }
+  rbu1 close
+  return $filename
+}
+
+do_execsql_test 1.0 {
+  SELECT icu_load_collation('en_US', 'my-collate');
+  CREATE TABLE t1(a COLLATE "my-collate" PRIMARY KEY, b, c);
+} {{}}
+
+do_test 1.2 {
+  create_rbu1 testrbu.db
+  sqlite3rbu rbu test.db testrbu.db
+  rbu dbMain_eval { SELECT icu_load_collation('en_US', 'my-collate') }
+  rbu dbRbu_eval { SELECT icu_load_collation('en_US', 'my-collate') }
+  while 1 {
+    set rc [rbu step]
+    if {$rc!="SQLITE_OK"} break
+  }
+  rbu close
+  db eval { SELECT * FROM t1 }
+} {a one 1 b two 2 c three 3}
+
+#forcedelete testrbu.db
+finish_test
diff --git a/ext/rbu/rbucrash.test b/ext/rbu/rbucrash.test
new file mode 100644
index 0000000000000000000000000000000000000000..e187e8db380eb2e91c0d848c1fb521dba086e0a4
--- /dev/null
+++ b/ext/rbu/rbucrash.test
@@ -0,0 +1,139 @@
+# 2014 October 22
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname [info script]] rbu_common.tcl]
+if_no_rbu_support { finish_test ; return }
+set ::testprefix rbucrash
+
+# Set up a target database and an rbu update database. The target
+# db is the usual "test.db", the rbu db is "test.db2".
+#
+forcedelete test.db2
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b, c, PRIMARY KEY(a), UNIQUE(b));
+  INSERT INTO t1 VALUES(1, 2, 3);
+  INSERT INTO t1 VALUES(4, 5, 6);
+  INSERT INTO t1 VALUES(7, 8, 9);
+
+  ATTACH 'test.db2' AS rbu;
+  CREATE TABLE rbu.data_t1(a, b, c, rbu_control);
+  INSERT INTO data_t1 VALUES(10, 11, 12, 0);
+  INSERT INTO data_t1 VALUES(13, 14, 15, 0);
+  INSERT INTO data_t1 VALUES(4, NULL, NULL, 1);
+  INSERT INTO data_t1 VALUES(1, NULL, 100, '..x');
+}
+db_save_and_close
+
+
+# Determine the number of steps in applying the rbu update to the test
+# target database created above. Set $::rbu_num_steps accordingly
+#
+# Check that the same number of steps are required to apply the rbu
+# update using many calls to sqlite3rbu_step() on a single rbu handle
+# as required to apply it using a series of rbu handles, on each of 
+# which sqlite3rbu_step() is called once.
+#
+do_test 1.1 {
+  db_restore
+  sqlite3rbu rbu test.db test.db2
+  set nStep 0
+  while {[rbu step]=="SQLITE_OK"} { incr nStep }
+  rbu close
+} {SQLITE_DONE}
+set rbu_num_steps $nStep
+do_test 1.2 {
+  db_restore
+  set nStep 0
+  while {1} {
+    sqlite3rbu rbu test.db test.db2
+    rbu step
+    if {[rbu close]=="SQLITE_DONE"} break
+    incr nStep
+  }
+  set nStep
+} $rbu_num_steps
+
+
+# Run one or more tests using the target (test.db) and rbu (test.db2)
+# databases created above. As follows:
+#
+#   1. This process starts the rbu update and calls sqlite3rbu_step()
+#      $nPre times. Then closes the rbu update handle.
+#
+#   2. A second process resumes the rbu update and attempts to call 
+#      sqlite3rbu_step() $nStep times before closing the handle. A
+#      crash is simulated during each xSync() of file test.db2.
+#
+#   3. This process attempts to resume the rbu update from whatever
+#      state it was left in by step (2). Test that it is successful
+#      in doing so and that the final target database is as expected.
+#
+# In total (nSync+1) tests are run, where nSync is the number of times
+# xSync() is called on test.db2.
+#
+proc do_rbu_crash_test {tn nPre nStep} {
+
+  set script [subst -nocommands {
+    sqlite3rbu rbu test.db file:test.db2?vfs=crash
+    set i 0
+    while {[set i] < $nStep} {
+      if {[rbu step]!="SQLITE_OK"} break
+      incr i
+    }
+    rbu close
+  }]
+
+  set bDone 0
+  for {set iDelay 1} {$bDone==0} {incr iDelay} {
+    forcedelete test.db2 test.db2-journal test.db test.db-oal test.db-wal
+    db_restore
+
+    if {$nPre>0} {
+      sqlite3rbu rbu test.db file:test.db2
+      set i 0
+      for {set i 0} {$i < $nPre} {incr i} { 
+        if {[rbu step]!="SQLITE_OK"} break
+      }
+      rbu close
+    }
+
+    set res [
+      crashsql -file test.db2 -delay $iDelay -tclbody $script -opendb {} {}
+    ]
+
+    set bDone 1
+    if {$res == "1 {child process exited abnormally}"} {
+      set bDone 0
+    } elseif {$res != "0 {}"} {
+      error "unexected catchsql result: $res"
+    }
+
+    sqlite3rbu rbu test.db test.db2
+    while {[rbu step]=="SQLITE_OK"} {}
+    rbu close
+
+    sqlite3 db test.db
+    do_execsql_test $tn.delay=$iDelay {
+      SELECT * FROM t1;
+      PRAGMA integrity_check;
+    } {1 2 100  7 8 9  10 11 12  13 14 15  ok}
+    db close
+  }
+}
+
+for {set nPre 0} {$nPre < $rbu_num_steps} {incr nPre} {
+  for {set is 1} {$is <= ($rbu_num_steps - $nPre)} {incr is} {
+    do_rbu_crash_test 2.pre=$nPre.step=$is $nPre $is
+  }
+}
+
+finish_test
diff --git a/ext/rbu/rbucrash2.test b/ext/rbu/rbucrash2.test
new file mode 100644
index 0000000000000000000000000000000000000000..10721df709354f4cd921e3ae7e1dcbe1f19660c2
--- /dev/null
+++ b/ext/rbu/rbucrash2.test
@@ -0,0 +1,97 @@
+# 2017 March 02
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname [info script]] rbu_common.tcl]
+if_no_rbu_support { finish_test ; return }
+set ::testprefix rbucrash2
+
+# Set up a target database and an rbu update database. The target
+# db is the usual "test.db", the rbu db is "test.db2".
+#
+forcedelete test.db2
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b, c, PRIMARY KEY(a), UNIQUE(b));
+  INSERT INTO t1 VALUES(1, 2, 3);
+  INSERT INTO t1 VALUES(4, 5, 6);
+  INSERT INTO t1 VALUES(7, 8, 9);
+
+  ATTACH 'test.db2' AS rbu;
+  CREATE TABLE rbu.data_t1(a, b, c, rbu_control);
+  INSERT INTO data_t1 VALUES('one', randomblob(3500), NULL, 0);
+  INSERT INTO data_t1 VALUES('two', randomblob(3500), NULL, 0);
+  INSERT INTO data_t1 VALUES('three', randomblob(3500), NULL, 0);
+  INSERT INTO data_t1 VALUES('four', randomblob(3500), NULL, 0);
+  INSERT INTO data_t1 VALUES('five', randomblob(3500), NULL, 0);
+  INSERT INTO data_t1 VALUES('six', randomblob(3500), NULL, 0);
+}
+db_save_and_close
+
+proc do_rbu_crash_test2 {tn script} {
+
+  foreach {f blksz} {
+    test.db   512
+    test.db2  512
+    test.db   4096
+    test.db2  4096
+  } {
+    set bDone 0
+    for {set iDelay 1} {$bDone==0} {incr iDelay} {
+      forcedelete test.db2 test.db2-journal test.db test.db-oal test.db-wal
+      db_restore
+  
+      set res [
+        crashsql -file $f -delay $iDelay -tclbody $script -dflt 1 -opendb {} \
+            -blocksize $blksz {}
+      ]
+  
+      set bDone 1
+      if {$res == "1 {child process exited abnormally}"} {
+        set bDone 0
+      } elseif {$res != "0 {}"} {
+        error "unexected catchsql result: $res"
+      }
+  
+      sqlite3rbu rbu test.db test.db2
+      while {[rbu step]=="SQLITE_OK"} {}
+      rbu close
+  
+      sqlite3 db test.db
+      do_execsql_test $tn.delay=$iDelay.f=$f.blksz=$blksz {
+        PRAGMA integrity_check;
+      } {ok}
+      db close
+    }
+  }
+}
+
+for {set x 1} {$x < 10} {incr x} {
+  do_rbu_crash_test2 1.$x {
+    sqlite3rbu rbu test.db test.db2
+    while {[rbu step]=="SQLITE_OK"} {
+      rbu savestate
+    }
+    rbu close
+  }
+}
+
+for {set x 1} {$x < 2} {incr x} {
+  do_rbu_crash_test2 2.$x {
+    sqlite3rbu rbu test.db test.db2
+    while {[rbu step]=="SQLITE_OK"} {
+      rbu close
+      sqlite3rbu rbu test.db test.db2
+    }
+    rbu close
+  }
+}
+
+finish_test
diff --git a/ext/rbu/rbudiff.test b/ext/rbu/rbudiff.test
new file mode 100644
index 0000000000000000000000000000000000000000..e5e3df12f266e1bc2dfc3bd9a0c22cd671f54f7f
--- /dev/null
+++ b/ext/rbu/rbudiff.test
@@ -0,0 +1,309 @@
+# 2015-07-31
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests for the [sqldiff --rbu] command.
+#
+#
+
+source [file join [file dirname [info script]] rbu_common.tcl]
+if_no_rbu_support { finish_test ; return }
+set testprefix rbudiff
+
+set PROG [test_find_sqldiff]
+db close
+
+proc get_rbudiff_sql {db1 db2} {
+  exec $::PROG --rbu $db1 $db2
+}
+
+proc get_vtab_rbudiff_sql {db1 db2} {
+  exec $::PROG --vtab --rbu $db1 $db2
+}
+
+proc step_rbu {target rbu} {
+  while 1 {
+    sqlite3rbu rbu $target $rbu
+    set rc [rbu step]
+    rbu close
+    if {$rc != "SQLITE_OK"} break
+  }
+  set rc
+}
+
+proc apply_rbudiff {sql target} {
+  test_rbucount $sql
+  forcedelete rbu.db
+  sqlite3 rbudb rbu.db
+  rbudb eval $sql
+  rbudb close
+  step_rbu $target rbu.db
+}
+
+proc sqlesc {id} {
+  set ret "'[string map {' ''} $id]'"
+  set ret
+}
+
+# The only argument is the output of an [sqldiff -rbu] run. This command
+# tests that the contents of the rbu_count table is correct. An exception
+# is thrown if it is not.
+#
+proc test_rbucount {sql} {
+  sqlite3 tmpdb ""
+  tmpdb eval $sql
+  tmpdb eval {
+    SELECT name FROM sqlite_master WHERE name LIKE 'data%' AND type='table'
+  } {
+    set a [tmpdb eval "SELECT count(*) FROM [sqlesc $name]"]
+    set b [tmpdb eval {SELECT cnt FROM rbu_count WHERE tbl = $name}]
+    if {$a != $b} { 
+      tmpdb close
+      error "rbu_count error - tbl = $name" 
+    }
+  }
+  tmpdb close
+  return ""
+}
+
+proc rbudiff_cksum {db1} {
+  set txt ""
+
+  sqlite3 dbtmp $db1
+  foreach tbl [dbtmp eval {SELECT name FROM sqlite_master WHERE type='table'}] {
+    set cols [list]
+    dbtmp eval "PRAGMA table_info = [sqlesc $tbl]" { 
+      lappend cols "quote( $name )" 
+    }
+    append txt [dbtmp eval \
+      "SELECT [join $cols {||'.'||}] FROM [sqlesc $tbl] ORDER BY 1"
+    ]
+  }
+  dbtmp close
+
+  md5 $txt
+}
+
+foreach {tn init mod} {
+  1 {
+    CREATE TABLE t1(a PRIMARY KEY, b, c);
+    INSERT INTO t1 VALUES(1, 2, 3);
+    INSERT INTO t1 VALUES(4, 5, 6);
+  
+    CREATE TABLE t2(a, b, c, PRIMARY KEY(b, c));
+    INSERT INTO t2 VALUES(1, 2, 3);
+    INSERT INTO t2 VALUES(4, 5, 6);
+  } {
+    INSERT INTO t1 VALUES(7, 8, 9);
+    DELETE FROM t1 WHERE a=4;
+    UPDATE t1 SET c = 11 WHERE a = 1;
+  
+    INSERT INTO t2 VALUES(7, 8, 9);
+    DELETE FROM t2 WHERE a=4;
+    UPDATE t2 SET c = 11 WHERE a = 1;
+  }
+
+  2 {
+    CREATE TABLE t1(a, b, c, PRIMARY KEY(a, b, c));
+    INSERT INTO t1 VALUES('u', 'v', 'w');
+    INSERT INTO t1 VALUES('x', 'y', 'z');
+  } {
+    DELETE FROM t1 WHERE a='u';
+    INSERT INTO t1 VALUES('a', 'b', 'c');
+  }
+
+  3 {
+    CREATE TABLE t1(i INTEGER PRIMARY KEY, x);
+    INSERT INTO t1 VALUES(1,
+      X'0000000000000000111111111111111122222222222222223333333333333333'
+    );
+    CREATE TABLE t2(y INTEGER PRIMARY KEY, x);
+    INSERT INTO t2 VALUES(1,
+        X'0000000000000000111111111111111122222222222222223333333333333333'
+    );
+  } {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES(1,
+      X'0000000000000000111111111111111122222555555552223333333333333333'
+    );
+    DELETE FROM t2;
+    INSERT INTO t2 VALUES(1,
+        X'0000000000000000111111111111111122222222222222223333333FFF333333'
+    );
+  }
+
+  4 {
+    CREATE TABLE x1(a, b, c, PRIMARY KEY(a, b, c));
+    INSERT INTO x1 VALUES('u', 'v', NULL);
+    INSERT INTO x1 VALUES('x', 'y', 'z');
+    INSERT INTO x1 VALUES('a', NULL, 'b');
+  } {
+    INSERT INTO x1 VALUES('a', 'b', 'c');
+  }
+
+  5 {
+    CREATE TABLE t1(a PRIMARY KEY, b);
+    INSERT INTO t1 VALUES(1, NULL);
+    INSERT INTO t1 VALUES(2, X'');
+  } {
+    UPDATE t1 SET b = X'' WHERE a=1;
+    UPDATE t1 SET b = NULL WHERE a=2;
+  }
+
+} {
+  catch { db close }
+
+  forcedelete test.db test.db2
+  sqlite3 db test.db
+  db eval "$init"
+  sqlite3 db test.db2
+  db eval "$init ; $mod"
+  db close
+
+  do_test 1.$tn.2 {
+    set sql [get_rbudiff_sql test.db test.db2]
+    apply_rbudiff $sql test.db
+  } {SQLITE_DONE}
+  do_test 1.$tn.3 { rbudiff_cksum test.db } [rbudiff_cksum test.db2]
+
+  forcedelete test.db test.db2
+  sqlite3 db test.db
+  db eval "$init ; $mod"
+  sqlite3 db test.db2
+  db eval "$init"
+  db close
+
+  do_test 1.$tn.4 {
+    set sql [get_rbudiff_sql test.db test.db2]
+    apply_rbudiff $sql test.db
+  } {SQLITE_DONE}
+  do_test 1.$tn.5 { rbudiff_cksum test.db } [rbudiff_cksum test.db2]
+}
+
+#-------------------------------------------------------------------------
+# Test that if the --vtab switch is present, [sqldiff] handles virtual
+# table types fts[345] and rtree correctly.
+#
+ifcapable fts3&&fts5&&rtree {
+
+foreach {tn init mod} {
+  1 {
+    CREATE VIRTUAL TABLE t1 USING fts5(c);
+    INSERT INTO t1 VALUES('a b c');
+    INSERT INTO t1 VALUES('a b c');
+  } {
+    DELETE FROM t1 WHERE rowid = 1;
+    INSERT INTO t1 VALUES('a b c');
+  }
+
+  2 {
+    CREATE VIRTUAL TABLE "x y" USING 'rtree'(id, x1, x2);
+    INSERT INTO "x y" VALUES(1, 2, 3);
+    INSERT INTO "x y" VALUES(2, 4, 6);
+  } {
+    DELETE FROM "x y" WHERE rowid = 1;
+    INSERT INTO "x y" VALUES(3, 6, 9);
+  }
+
+  3 {
+    CREATE VIRTUAL TABLE 'x''y' USING fts3;
+    INSERT INTO 'x''y' VALUES('one two three');
+    INSERT INTO 'x''y' VALUES('four five six');
+  } {
+    DELETE FROM 'x''y' WHERE rowid = 1;
+    INSERT INTO 'x''y' VALUES('one two three');
+  }
+} {
+
+  forcedelete test.db test.db2
+  sqlite3 db test.db
+  db eval "$init"
+  sqlite3 db test.db2
+  db eval "$init ; $mod"
+  db close
+
+  do_test 2.$tn.1 {
+    set sql [get_vtab_rbudiff_sql test.db test.db2]
+    apply_rbudiff $sql test.db
+  } {SQLITE_DONE}
+  do_test 2.$tn.2 { rbudiff_cksum test.db } [rbudiff_cksum test.db2]
+}
+
+}
+
+ifcapable fts5 {
+  foreach {tn init mod} {
+    1 {
+      CREATE VIRTUAL TABLE t1 USING fts5(c);
+      INSERT INTO t1 VALUES('a b c');
+      INSERT INTO t1 VALUES('a b c');
+    } {
+      DELETE FROM t1 WHERE rowid = 1;
+      INSERT INTO t1 VALUES('a b c');
+    }
+
+    2 {
+      CREATE VIRTUAL TABLE t1 USING FTs5(c);
+      INSERT INTO t1 VALUES('a b c');
+      INSERT INTO t1 VALUES('a b c');
+    } {
+      DELETE FROM t1 WHERE rowid = 1;
+      INSERT INTO t1 VALUES('a b c');
+    }
+
+    3 {
+      creAte    virTUal
+tablE t1 USING FTs5(c);
+      INSERT INTO t1 VALUES('a b c');
+      INSERT INTO t1 VALUES('a b c');
+    } {
+      DELETE FROM t1 WHERE rowid = 1;
+      INSERT INTO t1 VALUES('a b c');
+    }
+    4 {
+      creAte virTUal tablE	t1	USING FTs5(c);
+      INSERT INTO t1 VALUES('a b c');
+      INSERT INTO t1 VALUES('a b c');
+    } {
+      DELETE FROM t1 WHERE rowid = 1;
+      INSERT INTO t1 VALUES('a b c');
+    }
+
+  } {
+    forcedelete test.db test.db2
+    sqlite3 db test.db
+    db eval "$init"
+    sqlite3 db test.db2
+    db eval "$init ; $mod"
+    db eval { INSERT INTO t1(t1) VALUES('optimize') }
+    db close
+
+    do_test 3.$tn.1 {
+      set sql [get_vtab_rbudiff_sql test.db test.db2]
+      apply_rbudiff $sql test.db
+    } {SQLITE_DONE}
+
+    sqlite3 db test.db
+    sqlite3 db2 test.db2
+    do_test 3.$tn.2 { 
+      db2 eval { SELECT * FROM t1 ORDER BY rowid }
+    } [db eval { SELECT * FROM t1 ORDER BY rowid }]
+
+    do_test 3.$tn.3 { 
+      db2 eval { INSERT INTO t1(t1) VALUES('integrity-check') }
+    } {}
+
+    db close
+    db2 close
+  }
+}
+
+
+finish_test
diff --git a/ext/rbu/rbudor.test b/ext/rbu/rbudor.test
new file mode 100644
index 0000000000000000000000000000000000000000..c456d6ab71eb613a7a8a09c068d20ba64b4d3b39
--- /dev/null
+++ b/ext/rbu/rbudor.test
@@ -0,0 +1,56 @@
+# 2016 October 21
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This test file focuses on interactions between RBU and the feature
+# enabled by SQLITE_DIRECT_OVERFLOW_READ - Direct Overflow Read.
+#
+
+source [file join [file dirname [info script]] rbu_common.tcl]
+if_no_rbu_support { finish_test ; return }
+set ::testprefix rbudor
+
+set bigA [string repeat a 5000]
+set bigB [string repeat b 5000]
+do_execsql_test 1.0 {
+  PRAGMA page_size = 1024;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b BLOB);
+  INSERT INTO t1 VALUES(1, $bigA);
+} {}
+
+do_test 1.1 {
+  forcedelete rbu.db
+  sqlite3 rbu rbu.db 
+  rbu eval {
+    CREATE TABLE data_t1(a, b, rbu_control);
+    INSERT INTO data_t1 VALUES(2, $bigB, 0);
+  }
+  rbu close
+} {}
+
+do_test 1.2 {
+  sqlite3rbu rbu test.db rbu.db
+  while {[rbu state]!="checkpoint"} {
+    rbu step
+  }
+  rbu step
+  db eval { SELECT * FROM t1 }
+} [list 1 $bigA 2 $bigB]
+
+do_test 1.3 {
+  while {[rbu step]=="SQLITE_OK"} {}
+  rbu close
+} {SQLITE_DONE}
+
+do_execsql_test 1.4 {
+  SELECT * FROM t1 
+} [list 1 $bigA 2 $bigB]
+
+finish_test
diff --git a/ext/rbu/rbuexlock.test b/ext/rbu/rbuexlock.test
new file mode 100644
index 0000000000000000000000000000000000000000..28ab308fc082ec04143ec14a9763293b3d1a5dd4
--- /dev/null
+++ b/ext/rbu/rbuexlock.test
@@ -0,0 +1,292 @@
+# 2021 November 06
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname [info script]] rbu_common.tcl]
+if_no_rbu_support { finish_test ; return }
+set ::testprefix rbuexlock
+
+db close
+
+set journalmode delete
+if {[permutation]=="inmemory_journal"} {
+  set journalmode memory
+}
+
+# Create a simple RBU database. That expects to write to a table:
+#
+#   CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+#
+proc create_rbu {filename} {
+  forcedelete $filename
+  sqlite3 rbu1 $filename  
+  rbu1 eval {
+    CREATE TABLE data_t1(a, b, c, rbu_control);
+    INSERT INTO data_t1 VALUES(10, random(), random(), 0);
+    INSERT INTO data_t1 VALUES(20, random(), random(), 0);
+    INSERT INTO data_t1 VALUES(30, random(), random(), 0);
+    INSERT INTO data_t1 VALUES(40, random(), random(), 0);
+    INSERT INTO data_t1 VALUES(50, random(), random(), 0);
+    INSERT INTO data_t1 VALUES(60, random(), random(), 0);
+    INSERT INTO data_t1 VALUES(70, random(), random(), 0);
+    INSERT INTO data_t1 VALUES(80, random(), random(), 0);
+  }
+  rbu1 close
+  return $filename
+}
+
+reset_db
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a PRIMARY KEY, b INT, c INT);
+  CREATE INDEX t1b ON t1(b);
+  CREATE INDEX t1c ON t1(c);
+  INSERT INTO t1 VALUES(1, 2, 3);
+}
+create_rbu rbu1.db
+
+do_test 1.1.0 {
+  sqlite3rbu rbu file:test.db?rbu_exclusive_checkpoint=1 rbu1.db
+  rbu step
+} SQLITE_OK
+do_catchsql_test 1.1.1 { SELECT * FROM t1 } {0 {1 2 3}}
+
+do_test 1.2.0 {
+  for {set ii 0} {$ii < 10} {incr ii} {
+    rbu step
+  }
+  rbu step
+} SQLITE_OK
+do_catchsql_test 1.2.1 { SELECT * FROM t1 } {0 {1 2 3}}
+do_test 1.2.2 {
+  db eval {PRAGMA journal_mode}
+} $journalmode
+
+do_test 1.3.0 {
+  while {[file exists test.db-wal]==0} {
+    rbu step
+  }
+} {}
+do_catchsql_test 1.3.1 { SELECT * FROM t1 } {1 {database is locked}}
+do_test 1.3.2 {
+  db eval {PRAGMA journal_mode}
+} $journalmode
+
+
+do_test 1.4.0 {
+  rbu step
+} SQLITE_OK
+do_catchsql_test 1.4.1 { SELECT * FROM t1 } {1 {database is locked}}
+do_test 1.4.2 {
+  db eval {PRAGMA journal_mode}
+} $journalmode
+
+
+rbu close
+
+do_test 1.5.0 {
+  file exists test.db-wal
+} {1}
+do_test 1.5.1 {
+  sqlite3rbu rbu file:test.db?rbu_exclusive_checkpoint=1 rbu1.db
+  file exists test.db-wal
+} 1
+do_catchsql_test 1.5.2 { SELECT * FROM t1 } {1 {database is locked}}
+do_test 1.5.2 {
+  db eval {PRAGMA journal_mode}
+} $journalmode
+
+
+do_test 1.6.0 {
+  rbu step
+} SQLITE_OK
+do_catchsql_test 1.6.1 { SELECT * FROM t1 } {1 {database is locked}}
+do_test 1.6.2 {
+  db eval {PRAGMA journal_mode}
+} $journalmode
+
+do_test 1.7.0 {
+  while {[rbu step]=="SQLITE_OK"} {}
+  rbu close
+} SQLITE_DONE
+do_catchsql_test 1.7.2 { SELECT count(*) FROM t1 } {0 9}
+do_test 1.7.2 {
+  db eval {PRAGMA journal_mode}
+} $journalmode
+
+reset_db
+do_execsql_test 2.0 {
+  CREATE TABLE t1(a PRIMARY KEY, b INT, c INT);
+  CREATE INDEX t1b ON t1(b);
+  CREATE INDEX t1c ON t1(c);
+  INSERT INTO t1 VALUES(1, 2, 3);
+}
+create_rbu rbu1.db
+
+do_test 2.1.0 {
+  sqlite3rbu rbu file:test.db?rbu_exclusive_checkpoint=0 rbu1.db
+  rbu step
+} SQLITE_OK
+do_catchsql_test 2.1.1 { SELECT * FROM t1 } {0 {1 2 3}}
+
+do_test 2.2.0 {
+  for {set ii 0} {$ii < 10} {incr ii} {
+    rbu step
+  }
+  rbu step
+} SQLITE_OK
+do_catchsql_test 2.2.1 { SELECT * FROM t1 } {0 {1 2 3}}
+
+do_test 2.3.0 {
+  while {[file exists test.db-wal]==0} {
+    rbu step
+  }
+} {}
+do_test 2.3.1 {
+  llength [db eval {SELECT * FROM t1}]
+} {27}
+do_test 2.3.2 {
+  db eval {PRAGMA journal_mode}
+} {wal}
+
+do_test 2.4.0 {
+  rbu step
+} SQLITE_OK
+do_test 2.4.1 {
+  llength [db eval  {SELECT * FROM t1}]
+} {27}
+do_test 2.4.2 {
+  db eval {PRAGMA journal_mode}
+} {wal}
+
+rbu close
+
+do_test 2.5.0 {
+  db eval {PRAGMA journal_mode}
+} {wal}
+do_execsql_test 2.5.1 {
+  DELETE FROM t1;
+} {}
+
+create_rbu rbu1.db
+do_test 3.1.0 {
+  sqlite3rbu rbu file:test.db?rbu_exclusive_checkpoint=0 rbu1.db
+  rbu step
+} SQLITE_ERROR
+
+do_test 3.1.1 {
+  set rc [catch {rbu close} msg]
+  lappend rc $msg
+} {1 {SQLITE_ERROR - cannot update wal mode database}}
+db eval {PRAGMA journal_mode=DELETE}
+
+create_rbu rbu1.db
+do_test 3.2.0 {
+  sqlite3rbu rbu file:test.db?rbu_exclusive_checkpoint=0 rbu1.db
+  rbu step
+} SQLITE_OK
+
+do_test 3.3.1 {
+  set rc [catch {rbu close} msg]
+  lappend rc $msg
+} {0 SQLITE_OK}
+
+db close
+create_rbu rbu1.db
+do_test 3.4.0 {
+  sqlite3rbu rbu file:test.db?rbu_exclusive_checkpoint=0 rbu1.db
+  rbu step
+} SQLITE_OK
+rbu close
+
+#-------------------------------------------------------------------------
+reset_db
+forcedelete rbu1.db
+forcedelete rbu2.db
+
+sqlite3 rbu rbu1.db 
+do_execsql_test -db rbu 4.1 {
+  CREATE TABLE data_t1(a, b, rbu_control);
+  INSERT INTO data_t1 VALUES(1, 'one', 0);
+}
+rbu close
+sqlite3 rbu rbu2.db 
+do_execsql_test -db rbu 4.2 {
+  CREATE TABLE data_t1(a, b, rbu_control);
+  INSERT INTO data_t1 VALUES(2, 'two', 0);
+}
+rbu close
+
+do_execsql_test 4.3 {
+  CREATE TABLE t1(a PRIMARY KEY, b);
+}
+db close
+
+do_test 4.4 {
+  sqlite3rbu rbu file:test.db?rbu_exclusive_checkpoint=1 rbu1.db
+  rbu step
+  rbu state
+} {oal}
+
+sqlite3 cons test.db
+do_execsql_test -db cons 4.5 {
+  SELECT * FROM t1
+} {}
+
+do_test 4.6 { rbu step ; rbu state } {oal}
+do_test 4.7 { rbu step ; rbu state } {move}
+do_execsql_test -db cons 4.8 {
+  SELECT * FROM t1
+} {}
+do_test 4.9 { rbu step ; rbu state } {checkpoint}
+do_test 4.10 {
+  catchsql { SELECT * FROM t1 } cons
+} {1 {database is locked}}
+do_test 4.11 { rbu step ; rbu state } {checkpoint}
+do_test 4.11 { rbu step ; rbu state } {done}
+rbu close
+
+do_test 4.12 {
+  catchsql { SELECT * FROM t1 } cons
+} {0 {1 one}}
+
+do_test 4.13 {
+  sqlite3rbu rbu file:test.db?rbu_exclusive_checkpoint=1 rbu2.db
+  rbu step
+  rbu state
+} {oal}
+
+do_test 4.14 {
+  catchsql { SELECT * FROM t1 } cons
+} {0 {1 one}}
+
+do_test 4.15 { rbu step ; rbu state } {oal}
+do_test 4.16 { rbu step ; rbu state } {move}
+
+do_test 4.17 {
+  catchsql { SELECT * FROM t1 } cons
+} {0 {1 one}}
+
+do_test 4.18 { rbu step ; rbu state } {checkpoint}
+do_test 4.19 {
+  catchsql { SELECT * FROM t1 } cons
+} {1 {database is locked}}
+do_test 4.20 { rbu step ; rbu state } {checkpoint}
+do_test 4.21 { rbu step ; rbu state } {done}
+rbu close
+
+do_test 4.22 {
+  catchsql { SELECT * FROM t1 } cons
+} {0 {1 one 2 two}}
+
+cons close
+
+finish_test
diff --git a/ext/rbu/rbuexpr.test b/ext/rbu/rbuexpr.test
new file mode 100644
index 0000000000000000000000000000000000000000..4635d9fef26278d04d3a6b283522387523a60716
--- /dev/null
+++ b/ext/rbu/rbuexpr.test
@@ -0,0 +1,88 @@
+# 2014 August 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname [info script]] rbu_common.tcl]
+if_no_rbu_support { finish_test ; return }
+set ::testprefix rbuexpr
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b, c PRIMARY KEY);
+  CREATE INDEX i1 ON t1(a, null, b+1);
+  CREATE INDEX i2 ON t1(a+1, b+1, c+1);
+
+  INSERT INTO t1 VALUES(1, 2, 3);
+  INSERT INTO t1 VALUES(4, 5, 6);
+  INSERT INTO t1 VALUES(7, 8, 9);
+  INSERT INTO t1 VALUES(10, 11, 12);
+
+  PRAGMA integrity_check;
+} {ok}
+
+forcedelete rbu.db
+sqlite3 db2 rbu.db
+do_execsql_test -db db2 1.1 {
+  CREATE TABLE data_t1(a, b, c, rbu_control);
+  INSERT INTO data_t1 VALUES(13, 14, 15, 0);
+  INSERT INTO data_t1 VALUES(NULL, NULL, 6, 1);
+  INSERT INTO data_t1 VALUES(NULL, 'three', 3, '.x.');
+}
+db2 close
+db close
+
+do_test 1.2 {
+  run_rbu test.db rbu.db
+} {SQLITE_DONE}
+
+sqlite3 db test.db
+
+do_execsql_test 1.3 {
+  SELECT * FROM t1 WHERE a=4;
+}
+
+integrity_check 1.4
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 2.0 {
+  CREATE TABLE t1(c1, c2, c3, i INTEGER PRIMARY KEY);
+  INSERT INTO t1 VALUES('one', 'one', 'one', 1);
+  INSERT INTO t1 VALUES('two', 'two', 'two', 2);
+  INSERT INTO t1 VALUES('three', 'three', 'three', 3);
+  INSERT INTO t1 VALUES('four', 'four', 'four', 4);
+
+  CREATE INDEX i1 ON t1( substr(c1, 1, 2) );
+  CREATE INDEX i2 ON t1( c1 || c2 || c3 );
+  CREATE INDEX i3 ON t1( length(c1) + length(c2) - 1, c3||i );
+}
+
+forcedelete rbu.db
+sqlite3 db2 rbu.db
+do_execsql_test -db db2 2.1 {
+  CREATE TABLE data_t1(c1, c2, c3, i, rbu_control);
+  INSERT INTO data_t1 VALUES(NULL, NULL, NULL, 2, 1);
+  INSERT INTO data_t1 VALUES('thirty', NULL, NULL, 3, 'xx..');
+  INSERT INTO data_t1 VALUES('five', 'five', 'five', 5, 0);
+}
+db2 close
+
+db close
+
+do_test 2.2 {
+  run_rbu test.db rbu.db
+} {SQLITE_DONE}
+
+sqlite3 db test.db
+integrity_check 2.3
+
+finish_test
+
diff --git a/ext/rbu/rbufault.test b/ext/rbu/rbufault.test
new file mode 100644
index 0000000000000000000000000000000000000000..d35c389d7be165672d03981f0b1084fb6b718e8c
--- /dev/null
+++ b/ext/rbu/rbufault.test
@@ -0,0 +1,234 @@
+# 2014 October 22
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname [info script]] rbu_common.tcl]
+if_no_rbu_support { finish_test ; return }
+source $testdir/malloc_common.tcl
+set ::testprefix rbufault
+
+proc copy_if_exists {src target} {
+  if {[file exists $src]} {
+    forcecopy $src $target
+  } else {
+    forcedelete $target
+  }
+}
+
+foreach {tn2 setup sql expect} {
+  1 {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+    CREATE INDEX t1cb ON t1(c, b);
+    INSERT INTO t1 VALUES(1, 1, 1);
+    INSERT INTO t1 VALUES(2, 2, 2);
+    INSERT INTO t1 VALUES(3, 3, 3);
+
+    CREATE TABLE rbu.data_t1(a, b, c, rbu_control);
+    INSERT INTO data_t1 VALUES(2, NULL, NULL, 1);
+    INSERT INTO data_t1 VALUES(3, 'three', NULL, '.x.');
+    INSERT INTO data_t1 VALUES(4, 4, 4, 0);
+  } {
+    SELECT * FROM t1
+  } {1 1 1   3 three 3   4 4 4}
+
+  2 {
+    CREATE TABLE t2(a PRIMARY KEY, b, c) WITHOUT ROWID;
+    CREATE INDEX t2cb ON t2(c, b);
+    INSERT INTO t2 VALUES('a', 'a', 'a');
+    INSERT INTO t2 VALUES('b', 'b', 'b');
+    INSERT INTO t2 VALUES('c', 'c', 'c');
+
+    CREATE TABLE rbu.data_t2(a, b, c, rbu_control);
+    INSERT INTO data_t2 VALUES('b', NULL, NULL, 1);
+    INSERT INTO data_t2 VALUES('c', 'see', NULL, '.x.');
+    INSERT INTO data_t2 VALUES('d', 'd', 'd', 0);
+  } {
+    SELECT * FROM t2
+  } {a a a   c see c     d d d}
+
+  3 {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+    CREATE TABLE t2(a PRIMARY KEY, b, c) WITHOUT ROWID;
+    CREATE INDEX t1cb ON t1(c, b);
+    CREATE INDEX t2cb ON t2(c, b);
+
+    CREATE TABLE rbu.data_t1(a, b, c, rbu_control);
+    CREATE TABLE rbu.data_t2(a, b, c, rbu_control);
+    INSERT INTO data_t1 VALUES(1, 2, 3, 0);
+    INSERT INTO data_t2 VALUES(4, 5, 6, 0);
+  } {
+    SELECT * FROM t1 UNION ALL SELECT * FROM t2
+  } {1 2 3 4 5 6}
+
+  4 {
+    CREATE TABLE t1(a PRIMARY KEY, b, c);
+    CREATE INDEX t1c ON t1(c);
+    INSERT INTO t1 VALUES('A', 'B', 'C');
+    INSERT INTO t1 VALUES('D', 'E', 'F');
+
+    CREATE TABLE rbu.data_t1(a, b, c, rbu_control);
+    INSERT INTO data_t1 VALUES('D', NULL, NULL, 1);
+    INSERT INTO data_t1 VALUES('A', 'Z', NULL, '.x.');
+    INSERT INTO data_t1 VALUES('G', 'H', 'I', 0);
+  } {
+    SELECT * FROM t1 ORDER BY a;
+  } {A Z C G H I}
+
+  5 {
+    CREATE TABLE t1(a, b, c);
+    CREATE INDEX t1c ON t1(c, b);
+
+    CREATE TABLE rbu.data_t1(a, b, c, rbu_rowid, rbu_control);
+    INSERT INTO data_t1 VALUES('a', 'b', 'c', 1, 0);
+    INSERT INTO data_t1 VALUES('d', 'e', 'f', '2', 0);
+  } {
+    SELECT * FROM t1 ORDER BY a;
+  } {a b c d e f}
+
+} {
+  catch {db close}
+  forcedelete rbu.db test.db
+  sqlite3 db test.db
+  execsql {
+    PRAGMA encoding = utf16;
+    ATTACH 'rbu.db' AS rbu;
+  }
+  execsql $setup
+  db close
+
+  forcecopy test.db test.db.bak
+  forcecopy rbu.db rbu.db.bak
+
+  foreach {tn f reslist} {
+    1 oom-tra*  {
+      {0 SQLITE_DONE} 
+      {1 {SQLITE_NOMEM - out of memory}} 
+      {1 SQLITE_NOMEM} 
+      {1 SQLITE_IOERR_NOMEM} 
+      {1 {SQLITE_NOMEM - unable to open a temporary database file for storing temporary tables}}
+    }
+  
+    2 ioerr-*  {
+      {0 SQLITE_DONE} 
+      {1 {SQLITE_IOERR - disk I/O error}}
+      {1 SQLITE_IOERR}
+      {1 SQLITE_IOERR_WRITE}
+      {1 SQLITE_IOERR_READ}
+      {1 SQLITE_IOERR_FSYNC}
+      {1 {SQLITE_ERROR - SQL logic error}}
+      {1 {SQLITE_ERROR - unable to open database: rbu.db}}
+      {1 {SQLITE_IOERR - unable to open database: rbu.db}}
+    }
+
+    3 shmerr-*  {
+      {0 SQLITE_DONE} 
+      {1 {SQLITE_IOERR - disk I/O error}}
+      {1 SQLITE_IOERR}
+    }
+  } {
+
+    catch {db close}
+    sqlite3_shutdown
+    set lookaside_config [sqlite3_config_lookaside 0 0]
+    sqlite3_initialize
+    autoinstall_test_functions
+
+    do_faultsim_test 2.$tn2 -faults $::f -prep {
+      catch { db close }
+      forcedelete test.db-journal test.db-wal rbu.db-journal rbu.db-wal
+      forcecopy test.db.bak test.db
+      forcecopy rbu.db.bak  rbu.db
+    } -body {
+      sqlite3rbu rbu test.db rbu.db
+      while {[rbu step]=="SQLITE_OK"} {}
+      rbu close
+    } -test {
+      faultsim_test_result {*}$::reslist
+      if {$testrc==0} {
+        sqlite3 db test.db
+        faultsim_integrity_check
+        set res [db eval $::sql]
+        if {$res != [list {*}$::expect]} {
+          puts ""
+          puts "res: $res"
+          puts "exp: $expect"
+          error "data not as expected!"
+        }
+      }
+    }
+
+    catch {db close}
+    sqlite3_shutdown
+    sqlite3_config_lookaside {*}$lookaside_config
+    sqlite3_initialize
+    autoinstall_test_functions
+
+
+    for {set iStep 0} {$iStep<=21} {incr iStep} {
+    
+      forcedelete test.db-journal test.db-wal rbu.db-journal rbu.db-wal
+    
+      copy_if_exists test.db.bak test.db
+      copy_if_exists rbu.db.bak rbu.db
+    
+      sqlite3rbu rbu test.db rbu.db
+      for {set x 0} {$x < $::iStep} {incr x} { rbu step }
+      rbu close
+  
+# sqlite3 x rbu.db ; puts "XYZ [x eval { SELECT * FROM rbu_state } ]" ; x close
+    
+      copy_if_exists test.db     test.db.bak.2
+      copy_if_exists test.db-wal test.db.bak.2-wal
+      copy_if_exists test.db-oal test.db.bak.2-oal
+      copy_if_exists rbu.db      rbu.db.bak.2
+    
+      do_faultsim_test 3.$tn.$iStep -faults $::f -prep {
+        catch { db close }
+        forcedelete test.db-journal test.db-wal rbu.db-journal rbu.db-wal
+        copy_if_exists test.db.bak.2 test.db
+        copy_if_exists test.db.bak.2-wal test.db-wal
+        copy_if_exists test.db.bak.2-oal test.db-oal
+        copy_if_exists rbu.db.bak.2  rbu.db
+      } -body {
+        sqlite3rbu rbu test.db rbu.db
+        rbu step
+        rbu close
+      } -test {
+
+        if {$testresult=="SQLITE_OK"} {set testresult "SQLITE_DONE"}
+        faultsim_test_result {*}$::reslist
+      
+        if {$testrc==0} {
+          # No error occurred. If the RBU has not already been fully applied,
+          # apply the rest of it now. Then ensure that the final state of the
+          # target db is as expected. And that "PRAGMA integrity_check"
+          # passes.
+          sqlite3rbu rbu test.db rbu.db
+          while {[rbu step] == "SQLITE_OK"} {}
+          rbu close
+
+          sqlite3 db test.db
+          faultsim_integrity_check
+
+          set res [db eval $::sql]
+          if {$res != [list {*}$::expect]} {
+            puts ""
+            puts "res: $res"
+            puts "exp: $::expect"
+            error "data not as expected!"
+          }
+        }
+      }
+    }
+  }
+}
+
+finish_test
diff --git a/ext/rbu/rbufault2.test b/ext/rbu/rbufault2.test
new file mode 100644
index 0000000000000000000000000000000000000000..fafe0ede7d2d62fa7f1b0cc53c532dca901fa174
--- /dev/null
+++ b/ext/rbu/rbufault2.test
@@ -0,0 +1,64 @@
+# 2014 October 22
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname [info script]] rbu_common.tcl]
+if_no_rbu_support { finish_test ; return }
+source $testdir/malloc_common.tcl
+set ::testprefix rbufault2
+
+forcedelete rbu.db
+do_execsql_test 1.0 {
+  CREATE TABLE target(x UNIQUE, y, z, PRIMARY KEY(y));
+  INSERT INTO target VALUES(1, 2, 3);
+  INSERT INTO target VALUES(4, 5, 6);
+
+  ATTACH 'rbu.db' AS rbu;
+  CREATE TABLE rbu.data_target(x, y, z, rbu_control);
+  INSERT INTO data_target VALUES(7, 8, 9, 0);
+  INSERT INTO data_target VALUES(1, 11, 12, 0);
+  DETACH rbu;
+}
+db close
+
+forcecopy test.db test.db-bak 
+forcecopy rbu.db rbu.db-bak 
+
+do_faultsim_test 1 -faults oom* -prep {
+  forcecopy test.db-bak test.db
+  forcecopy rbu.db-bak rbu.db
+  forcedelete test.db-oal test.db-wal rbu.db-journal
+  sqlite3rbu rbu test.db rbu.db
+} -body {
+  while {[rbu step]=="SQLITE_OK"} { }
+  rbu close
+} -test {
+  faultsim_test_result      \
+      {1 {SQLITE_CONSTRAINT - UNIQUE constraint failed: target.x}} \
+      {1 SQLITE_CONSTRAINT} \
+      {1 SQLITE_NOMEM} \
+      {1 {SQLITE_NOMEM - unable to open a temporary database file for storing temporary tables}} \
+      {1 {SQLITE_NOMEM - out of memory}} 
+}
+
+
+sqlite3rbu_create_vfs -default rbu ""
+sqlite3 db test.db
+set ::vfsname [file_control_vfsname db]
+do_faultsim_test 2 -faults oom* -prep {
+} -body {
+  file_control_vfsname db
+} 
+db close
+sqlite3rbu_destroy_vfs rbu
+
+
+finish_test
diff --git a/ext/rbu/rbufault3.test b/ext/rbu/rbufault3.test
new file mode 100644
index 0000000000000000000000000000000000000000..543e23762625aafd4992f520bfdef36f71ee8bd3
--- /dev/null
+++ b/ext/rbu/rbufault3.test
@@ -0,0 +1,96 @@
+# 2016 April 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains fault injection tests for RBU vacuum operations.
+#
+
+source [file join [file dirname [info script]] rbu_common.tcl]
+if_no_rbu_support { finish_test ; return }
+source $testdir/malloc_common.tcl
+set ::testprefix rbufault3
+
+foreach {fault errlist} {
+  oom-* {
+    {1 SQLITE_NOMEM}
+    {1 SQLITE_IOERR_NOMEM}
+    {1 {SQLITE_NOMEM - out of memory}}
+  }
+
+  ioerr-* {
+    {1 {SQLITE_IOERR - disk I/O error}}
+    {1 SQLITE_IOERR} 
+    {1 SQLITE_IOERR_WRITE} 
+    {1 SQLITE_IOERR_FSYNC} 
+    {1 SQLITE_IOERR_READ} 
+    {1 {SQLITE_IOERR - unable to open database: test.db2}} 
+    {1 {SQLITE_ERROR - unable to open database: test.db2}} 
+    {1 {SQLITE_ERROR - SQL logic error}}
+  }
+
+  cantopen* {
+    {1 {SQLITE_CANTOPEN - unable to open database: test.db2}}  
+    {1 {SQLITE_CANTOPEN - unable to open database: test.db2}}  
+    {1 {SQLITE_CANTOPEN - unable to open database file}}  
+    {1 SQLITE_CANTOPEN} 
+  }
+
+} {
+
+  reset_db
+  do_execsql_test 0 {
+    CREATE TABLE target(x UNIQUE, y, z, PRIMARY KEY(y));
+    INSERT INTO target VALUES(1, 2, 3);
+    INSERT INTO target VALUES(4, 5, 6);
+    INSERT INTO target VALUES(7, 8, 9);
+    CREATE INDEX i1 ON target(z);
+  }
+  faultsim_save_and_close
+
+  do_faultsim_test 1 -faults $fault -prep {
+    faultsim_restore_and_reopen
+    forcedelete test.db2
+  } -body {
+    sqlite3rbu_vacuum rbu test.db test.db2
+    while {[rbu step]=="SQLITE_OK"} {}
+    rbu close
+  } -test {
+    eval [list faultsim_test_result {0 SQLITE_DONE} {*}$::errlist]
+  }
+
+  do_faultsim_test 2 -faults $fault -prep {
+    faultsim_restore_and_reopen
+    forcedelete test.db2
+  } -body {
+    sqlite3rbu_vacuum rbu test.db test.db2
+    rbu step
+    rbu close
+  } -test {
+    eval [list faultsim_test_result {0 SQLITE_OK} {*}$::errlist]
+  }
+
+  forcedelete test.db2
+  sqlite3rbu_vacuum rbu test.db test.db2
+  rbu step
+  rbu close
+  faultsim_save_and_close
+
+  do_faultsim_test 3 -faults $fault -prep {
+    faultsim_restore_and_reopen
+  } -body {
+    sqlite3rbu_vacuum rbu test.db test.db2
+    rbu step
+    rbu close
+  } -test {
+    eval [list faultsim_test_result {0 SQLITE_OK} {*}$::errlist]
+  }
+}
+
+finish_test
diff --git a/ext/rbu/rbufault4.test b/ext/rbu/rbufault4.test
new file mode 100644
index 0000000000000000000000000000000000000000..b95612449f2d3b5f5d85d3f27004ec91a02da495
--- /dev/null
+++ b/ext/rbu/rbufault4.test
@@ -0,0 +1,66 @@
+# 2014 October 22
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname [info script]] rbu_common.tcl]
+if_no_rbu_support { finish_test ; return }
+source $testdir/malloc_common.tcl
+set ::testprefix rbufault4
+
+for {set tn 1} {1} {incr tn} {
+  reset_db
+  do_execsql_test 1.0 {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+    CREATE INDEX i1b ON t1(b);
+    CREATE INDEX i1c ON t1(c);
+    INSERT INTO t1 VALUES(1, 2, 3);
+    INSERT INTO t1 VALUES(4, 5, 6);
+  }
+  db close
+
+  forcedelete test.db2
+  sqlite3rbu_vacuum rbu test.db test.db2
+  for {set i 0} {$i < $tn} {incr i} { rbu step }
+  set rc [rbu close]
+  if {$rc!="SQLITE_OK"} { 
+    if {$rc!="SQLITE_DONE"} {error $rc}
+    break
+  }
+  faultsim_save
+
+  do_faultsim_test $tn -faults oom-t* -prep {
+    faultsim_restore
+  } -body {
+    sqlite3rbu_vacuum rbu test.db test.db2
+    while 1 {
+      set rc [rbu step]
+      if {$rc=="SQLITE_DONE"} break
+      if {$rc!="SQLITE_OK"} { error $rc }
+    }
+  } -test {
+    catch {rbu close}
+    faultsim_test_result {0 {}} {1 SQLITE_NOMEM} {1 SQLITE_IOERR_NOMEM}
+
+    sqlite3rbu_vacuum rbu test.db test.db2
+    while {[rbu step]=="SQLITE_OK"} {}
+    set trc [rbu close]
+    if {$trc!="SQLITE_DONE"} { error "Got $trc instead of SQLITE_DONE!" }
+
+    sqlite3 db test.db
+    set rc [db one {PRAGMA integrity_check}]
+    if {$rc!="ok"} { error "Got $rc instead of ok!" }
+    db close
+  }
+}
+
+
+
+finish_test
diff --git a/ext/rbu/rbufts.test b/ext/rbu/rbufts.test
new file mode 100644
index 0000000000000000000000000000000000000000..b46c32fdc21344d4138c5c8551166621f12123cf
--- /dev/null
+++ b/ext/rbu/rbufts.test
@@ -0,0 +1,131 @@
+# 2014 August 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains tests for the RBU module. More specifically, it
+# contains tests to ensure that RBU works with FTS tables.
+#
+
+source [file join [file dirname [info script]] rbu_common.tcl]
+if_no_rbu_support { finish_test ; return }
+set ::testprefix rbufts
+
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+proc step_rbu {target rbu} {
+  while 1 {
+    sqlite3rbu rbu $target $rbu
+    set rc [rbu step]
+    rbu close
+    if {$rc != "SQLITE_OK"} break
+  }
+  set rc
+}
+
+proc apply_rbu_update {target sql} {
+  forcedelete rbu.db
+  sqlite3 dbrbu rbu.db
+  execsql $sql dbrbu
+  dbrbu close
+
+  step_rbu $target rbu.db
+}
+
+do_execsql_test 1.1.0 {
+  CREATE TABLE t1(i INTEGER PRIMARY KEY, a, b);
+  CREATE VIRTUAL TABLE xx USING fts4(content=t1, a, b);
+  INSERT INTO t1(rowid, a, b) VALUES(10, 'a b c', 'c b a');
+  INSERT INTO t1(rowid, a, b) VALUES(20, 'a b c', 'd e f');
+  INSERT INTO t1(rowid, a, b) VALUES(30, 'd e f', 'a b c');
+  INSERT INTO t1(rowid, a, b) VALUES(40, 'd e f', 'd e f');
+}
+
+do_execsql_test 1.1.1 {
+  INSERT INTO xx(xx) VALUES('rebuild');
+  INSERT INTO xx(xx) VALUES('integrity-check');
+}
+
+do_test 1.1.2 {
+  apply_rbu_update test.db {
+    CREATE TABLE data_t1(i, a, b, rbu_control);
+    INSERT INTO data_t1 VALUES(20, NULL, NULL, 1);        -- delete
+    INSERT INTO data_t1 VALUES(30, 'x y z', NULL, '.x.'); -- update
+    INSERT INTO data_t1 VALUES(50, '1 2 3', 'x y z', 0);  -- insert
+
+    CREATE VIEW data0_xx AS 
+    SELECT i AS rbu_rowid, a, b, 
+    CASE WHEN rbu_control IN (0, 1) 
+    THEN rbu_control ELSE substr(rbu_control, 2) END AS rbu_control
+    FROM data_t1;
+  }
+} {SQLITE_DONE}
+
+do_execsql_test 1.1.3 {
+  INSERT INTO xx(xx) VALUES('integrity-check');
+}
+
+reset_db
+do_execsql_test 1.2.1 {
+  CREATE TABLE ccc(addr, text);
+  CREATE VIRTUAL TABLE ccc_fts USING fts4(addr, text, content=ccc);
+  INSERT INTO ccc VALUES('a b c', 'd e f');
+  INSERT INTO ccc VALUES('a b c', 'd e f');
+  INSERT INTO ccc_fts(ccc_fts) VALUES('rebuild');
+  INSERT INTO ccc_fts(ccc_fts) VALUES('integrity-check');
+}
+
+do_test 1.2.2 {
+  apply_rbu_update test.db {
+    CREATE TABLE data_ccc(addr, text, rbu_rowid, rbu_control);
+    CREATE VIEW data0_ccc_fts AS SELECT * FROM data_ccc;
+    INSERT INTO data_ccc VALUES(NULL, NULL, 1, 1);
+    INSERT INTO data_ccc VALUES('x y z', NULL, 2, 'x.');
+    INSERT INTO data_ccc VALUES('y y y', '1 1 1', 3, 0);
+  }
+} {SQLITE_DONE}
+
+do_execsql_test 1.2.3 {
+  INSERT INTO ccc_fts(ccc_fts) VALUES('integrity-check');
+}
+do_execsql_test 1.2.4 {
+  SELECT rowid, * FROM ccc_fts;
+} {2 {x y z} {d e f} 3 {y y y} {1 1 1}}
+
+#-------------------------------------------------------------------------
+# Test the outcome of attempting to delete or update a row within a 
+# contentless FTS table using RBU. An error.
+#
+reset_db
+do_execsql_test 3.1 {
+  CREATE VIRTUAL TABLE ft USING fts4(x, content=);
+  INSERT INTO ft(rowid, x) VALUES(1, '1 2 3');
+  INSERT INTO ft(rowid, x) VALUES(2, '4 5 6');
+}
+
+do_test 3.2 {
+  list [catch { apply_rbu_update test.db {
+    CREATE TABLE data_ft(x, rbu_rowid, rbu_control);
+    INSERT INTO data_ft VALUES(NULL, 2, 1);
+  } } msg] $msg]
+} {1 {SQLITE_ERROR - SQL logic error]}}
+
+do_test 3.3 {
+  list [catch { apply_rbu_update test.db {
+    CREATE TABLE data_ft(x, rbu_rowid, rbu_control);
+    INSERT INTO data_ft VALUES('7 8 9', 1, 'x');
+  } } msg] $msg]
+} {1 {SQLITE_ERROR - SQL logic error]}}
+
+
+
+finish_test
diff --git a/ext/rbu/rbumisc.test b/ext/rbu/rbumisc.test
new file mode 100644
index 0000000000000000000000000000000000000000..16293141be9cdedb92660afd84d25d68aed8b3b4
--- /dev/null
+++ b/ext/rbu/rbumisc.test
@@ -0,0 +1,176 @@
+# 2014 August 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname [info script]] rbu_common.tcl]
+if_no_rbu_support { finish_test ; return }
+set ::testprefix rbumisc
+
+proc populate_rbu_db {} {
+  forcedelete rbu.db
+  sqlite3 rbu rbu.db
+  rbu eval {
+    CREATE TABLE data_x1(a, b, c, rbu_control);
+    INSERT INTO data_x1 VALUES(1, 1, 1, 0);
+    INSERT INTO data_x1 VALUES(2, 2, 2, 0);
+
+    CREATE TABLE dat(a, b, c, rbu_control);
+    CREATE TABLE "data x1"(a, b, c, rbu_control);
+    CREATE TABLE datax1(a, b, c, rbu_control);
+    CREATE TABLE data_(a, b, c, rbu_control);
+
+    INSERT INTO "data x1" VALUES(3, 3, 3, 0);
+    INSERT INTO datax1 VALUES(3, 3, 3, 0);
+    INSERT INTO data_ VALUES(3, 3, 3, 0);
+    INSERT INTO dat VALUES(3, 3, 3, 0);
+  }
+  rbu close
+}
+
+#-------------------------------------------------------------------------
+# Ensure that RBU is not confused by oddly named tables in an RBU 
+# database.
+#
+do_execsql_test 1.0 {
+  CREATE TABLE x1(a, b, c INTEGER PRIMARY KEY);
+}
+do_test 1.1 {
+  populate_rbu_db
+} {}
+
+do_test 1.2 {
+  step_rbu test.db rbu.db
+  db eval { SELECT * FROM x1 }
+} {1 1 1 2 2 2}
+
+do_test 1.3 {
+  db eval { DELETE FROM x1 }
+  sqlite3 rbu rbu.db
+  rbu eval { DELETE FROM rbu_state }
+  rbu close
+  step_rbu test.db rbu.db
+  db eval { SELECT * FROM x1 }
+} {1 1 1 2 2 2}
+
+do_test 1.4 {
+  db eval { DELETE FROM x1 }
+  populate_rbu_db
+
+  sqlite3rbu rbu test.db rbu.db
+  rbu step
+  rbu step
+  rbu close
+
+  forcecopy test.db-oal test.db-wal
+  sqlite3rbu rbu test.db rbu.db
+  rbu step
+  list [catch { rbu close } msg] $msg
+} {1 {SQLITE_ERROR - cannot update wal mode database}}
+
+#-------------------------------------------------------------------------
+# Test the effect of a wal file appearing after the target database has
+# been opened, but before it has been locked.
+#
+catch { db close }
+testvfs tvfs -default 1
+
+for {set N 1} {$N < 10} {incr N} {
+  reset_db
+  populate_rbu_db
+  do_execsql_test 2.$N.0 {
+    CREATE TABLE x1(a, b, c INTEGER PRIMARY KEY);
+  }
+  
+  set nAccessCnt 0
+  do_test 2.$N.1 {
+    sqlite3rbu rbu test.db rbu.db
+    rbu step
+    rbu step
+    rbu close
+  } {SQLITE_OK}
+  
+  tvfs script xAccess
+  tvfs filter xAccess
+  set nAccessCnt 0
+  proc xAccess {method file args} {
+    global nAccessCnt
+    if {[file tail $file]=="test.db-wal"} {
+      incr nAccessCnt -1
+      if {$nAccessCnt==0} {
+        set fd [open test.db-wal w]
+        puts -nonewline $fd [string repeat 0 2000]
+        close $fd
+      }
+    }
+    return SQLITE_OK
+  }
+
+  foreach r {
+     {1 {SQLITE_ERROR - cannot update wal mode database}}
+     {0 SQLITE_OK}
+     {1 {SQLITE_CANTOPEN - unable to open database file}}
+  } {
+    set RES($r) 1
+  }
+  do_test 2.$N.2 {
+    set ::nAccessCnt $N
+    set res [list [catch {
+      sqlite3rbu rbu test.db rbu.db
+      rbu step
+      rbu close
+    } msg ] $msg]
+    set RES($res)
+  } {1}
+  catch {rbu close}
+}
+catch {db close}
+catch {tvfs delete}
+
+#-------------------------------------------------------------------------
+testvfs tvfs -default 1
+reset_db
+populate_rbu_db
+do_execsql_test 3.0 {
+  CREATE TABLE x1(a, b, c INTEGER PRIMARY KEY);
+}
+  
+tvfs script xFileControl
+tvfs filter xFileControl
+
+proc xFileControl {method file verb args} {
+  if {$verb=="ZIPVFS" && [info exists ::zipvfs_filecontrol]} {
+    return $::zipvfs_filecontrol 
+  }
+  return "SQLITE_NOTFOUND"
+}
+
+breakpoint
+foreach {tn ret err} {
+  1 SQLITE_OK           0
+  2 SQLITE_ERROR        1
+  3 SQLITE_NOTFOUND     0
+  4 SQLITE_OMIT         1
+} {
+  set ::zipvfs_filecontrol $ret
+  do_test 3.$tn.1 {
+    catch {
+      sqlite3rbu rbu test.db rbu.db
+      rbu step
+      rbu close
+    }
+  } $err
+}
+catch {db close}
+catch {tvfs delete}
+
+#-------------------------------------------------------------------------
+
+finish_test
diff --git a/ext/rbu/rbumulti.test b/ext/rbu/rbumulti.test
new file mode 100644
index 0000000000000000000000000000000000000000..c24da3518ddf4a13ccf5266c1b22f1fd86c6a5f7
--- /dev/null
+++ b/ext/rbu/rbumulti.test
@@ -0,0 +1,175 @@
+# 2018 January 11
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# TESTRUNNER: slow
+#
+# This file contains tests of multiple RBU operations running
+# concurrently within the same process. 
+#
+
+source [file join [file dirname [info script]] rbu_common.tcl]
+if_no_rbu_support { finish_test ; return }
+set ::testprefix rbumulti
+
+db close
+
+autoinstall_test_functions
+
+proc build_db {db} {
+  $db eval {
+    CREATE TABLE t1(a PRIMARY KEY, b, c);
+    CREATE INDEX i1 ON t1(b);
+    CREATE INDEX i2 ON t1(c);
+
+    WITH s(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<500 )
+    INSERT INTO t1 
+    SELECT randomblob(10), randomblob(100), randomblob(100) FROM s;
+  }
+}
+
+proc build_rbu {db} {
+  $db eval {
+    CREATE TABLE data_t1(a, b, c, rbu_control);
+    WITH s(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<100 )
+    INSERT INTO data_t1 
+    SELECT randomblob(10), randomblob(100), randomblob(100), 0 FROM s;
+  }
+}
+
+proc step_rbu2 {bOpenClose openr1 openr2} {
+
+  forcedelete teststate.db1
+  forcedelete teststate.db2
+
+  if {$bOpenClose!=0 && $bOpenClose!=1} { error $bOpenClose }
+  if {$bOpenClose==0} {
+    eval $openr1 
+    eval $openr2 
+  }
+
+  set b1 0
+  set b2 0
+
+  while {$b1==0 || $b2==0} {
+    if {$bOpenClose==1} {
+      if {$b1==0} { eval $openr1 teststate.db1 }
+      if {$b2==0} { eval $openr2 teststate.db2 }
+    }
+    if {$b1==0} {
+      set rc1 [r1 step]
+      if {$rc1 != "SQLITE_OK"} { set b1 1 }
+    }
+    if {$b2==0} {
+      set rc2 [r2 step]
+      if {$rc2 != "SQLITE_OK"} { set b2 1 }
+    }
+    if {$bOpenClose==1} {
+      if {$b1==0} { r1 close }
+      if {$b2==0} { r2 close }
+    }
+  }
+
+  set rc1 [r1 close]
+  set rc2 [r2 close]
+
+  list $rc1 $rc2
+}
+
+
+for {set i 0} {$i<=3} {incr i} {
+
+  if {$i & 0x01} {
+    sqlite3rbu_create_vfs -default myrbu ""
+  }
+  set bOpenClose [expr $i>>1]
+
+  forcedelete test.db
+  forcedelete test.db2
+  forcedelete rbu.db
+  forcedelete rbu.db2
+  
+  do_test 1.$i.0 {
+    sqlite3 db test.db
+    sqlite3 db2 test.db2
+    build_db db
+    build_db db2
+  
+    sqlite3 rbu1 rbu.db
+    sqlite3 rbu2 rbu.db2
+  
+    build_rbu rbu1
+    build_rbu rbu2
+  
+    rbu1 close
+    rbu2 close
+  } {}
+
+  set m1 [db eval {SELECT md5sum(a, b, c) FROM t1}]
+  set m2 [db2 eval {SELECT md5sum(a, b, c) FROM t1}]
+  
+  do_test 1.$i.1 {
+    step_rbu2 $bOpenClose {
+      sqlite3rbu r1 test.db rbu.db
+    } {
+      sqlite3rbu r2 test.db2 rbu.db2
+    }
+  } {SQLITE_DONE SQLITE_DONE}
+  
+  do_execsql_test -db db  1.$i.2.1 { PRAGMA integrity_check } ok
+  do_execsql_test -db db2 1.$i.2.2 { PRAGMA integrity_check } ok
+
+  do_execsql_test -db db  1.$i.3.1 { SELECT md5sum(a, b, c)==$m1 FROM t1 } 0
+  do_execsql_test -db db2 1.$i.3.2 { SELECT md5sum(a, b, c)==$m2 FROM t1 } 0
+  
+  catch { db close }
+  catch { db2 close }
+  #-----------------------------------------------------------------------
+  forcedelete test.db2
+  forcedelete test.db
+  forcedelete rbu.db2
+  
+  do_test 1.$i.4 {
+    sqlite3 db test.db
+    sqlite3 db2 test.db2
+    build_db db
+    build_db db2
+    sqlite3 rbu2 rbu.db2
+    build_rbu rbu2
+    rbu2 close
+  } {}
+
+  set m1 [db eval {SELECT md5sum(a, b, c) FROM t1}]
+  set m2 [db2 eval {SELECT md5sum(a, b, c) FROM t1}]
+
+  do_test 1.$i.5 {
+    step_rbu2 $bOpenClose {
+      sqlite3rbu_vacuum r1 test.db
+    } {
+      sqlite3rbu r2 test.db2 rbu.db2
+    }
+  } {SQLITE_DONE SQLITE_DONE}
+
+  do_execsql_test -db db  1.$i.6.1 { SELECT md5sum(a, b, c)==$m1 FROM t1 } 1
+  do_execsql_test -db db2 1.$i.6.2 { SELECT md5sum(a, b, c)==$m2 FROM t1 } 0
+
+  do_execsql_test -db db  1.$i.7.1 { PRAGMA integrity_check } ok
+  do_execsql_test -db db2 1.$i.7.2 { PRAGMA integrity_check } ok
+
+  catch { db close }
+  catch { db2 close }
+  if {$i & 0x01} {
+    sqlite3rbu_destroy_vfs myrbu
+  }
+
+}
+
+
+finish_test
diff --git a/ext/rbu/rbupartial.test b/ext/rbu/rbupartial.test
new file mode 100644
index 0000000000000000000000000000000000000000..0c8191d2b6d0dde75ced230d5dd81fd06a187b3f
--- /dev/null
+++ b/ext/rbu/rbupartial.test
@@ -0,0 +1,98 @@
+# 2019 April 11
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname [info script]] rbu_common.tcl]
+if_no_rbu_support { finish_test ; return }
+set ::testprefix rbupartial
+
+db close
+
+foreach {tn without_rowid a b c d} {
+  1 ""              a b c d
+  2 "WITHOUT ROWID" aaa bbb ccc ddd
+  3 "WITHOUT ROWID" "\"hello\"" {"one'two"}  {[c]} ddd
+  4 "WITHOUT ROWID" {`a b`} {"one'two"}  {[c c c]} ddd
+  5 "" a b c {"d""d"}
+  6 "" {'one''two'} b {"c""c"} {"d""d"}
+} {
+  eval [string map [list \
+    %WITHOUT_ROWID% $without_rowid %A% $a %B% $b %C% $c %D% $d
+  ] {
+  reset_db
+  do_execsql_test $tn.1.0 {
+    CREATE TABLE t1(%A% PRIMARY KEY, %B%, %C%, %D%) %WITHOUT_ROWID% ;
+    CREATE INDEX i1b  ON t1(%B%);
+    CREATE INDEX i1b2 ON t1(%B%) WHERE %C%<5;
+    CREATE INDEX i1b3 ON t1(%B%) WHERE %C%>=5;
+
+    CREATE INDEX i1c  ON t1(%C%);
+    CREATE INDEX i1c2 ON t1(%C%) WHERE %C% IS NULL;
+    CREATE INDEX i1c3 ON t1(%C%) WHERE %C% IS NOT NULL;
+
+    CREATE INDEX i1c4 ON t1(%C%) WHERE %D% < 'd';
+    CREATE INDEX i1c5 ON t1(
+        %C%                   -- for (c = ... expressions
+    ) WHERE %D% < 'd';
+    CREATE INDEX i1c6 ON t1(
+        %C% /* Again, for (c=... expr */, %D%
+    ) WHERE %D% < 'd';
+
+    CREATE INDEX i1c7 ON t1(
+        %C% /* As before, for (c=... "expr */) WHERE %D% < 'd';
+  }
+
+  do_execsql_test $tn.1.1 {
+    INSERT INTO t1 VALUES(0, NULL, NULL, 'a');
+    INSERT INTO t1 VALUES(1, 2, 3, 'b');
+    INSERT INTO t1 VALUES(4, 5, 6, 'c');
+    INSERT INTO t1 VALUES(7, 8, 9, 'd');
+  }
+
+  forcedelete rbu.db
+  do_test $tn.1.2 {
+    sqlite3 rbu rbu.db
+    rbu eval {
+      CREATE TABLE data_t1(%A%, %B%, %C%, %D%, rbu_control);
+
+      INSERT INTO data_t1 VALUES(10, 11, 12, 'e', 0);
+      INSERT INTO data_t1 VALUES(13, 14, NULL, 'f', 0);
+
+      INSERT INTO data_t1 VALUES(0, NULL, NULL, NULL, 1);
+      INSERT INTO data_t1 VALUES(4, NULL, NULL, NULL, 1);
+
+      INSERT INTO data_t1 VALUES(7, NULL, 4, NULL, '..x.');
+      INSERT INTO data_t1 VALUES(1, 10, NULL, NULL, '.xx.');
+    }
+    rbu close
+  } {}
+
+  do_test $tn.1.3 {
+    run_rbu test.db rbu.db
+    execsql { PRAGMA integrity_check }
+  } {ok}
+
+  do_execsql_test $tn.1.4 {
+    SELECT * FROM t1 ORDER BY %A%;
+  } {
+    1 10 {} b   7 8 4 d   10 11 12 e   13 14 {} f
+  }
+
+  set step 0
+  do_rbu_vacuum_test $tn.1.5 0
+
+  do_test $tn.1.6 {
+    execsql { PRAGMA integrity_check }
+  } {ok}
+  }]
+}
+
+finish_test
diff --git a/ext/rbu/rbupass.test b/ext/rbu/rbupass.test
new file mode 100644
index 0000000000000000000000000000000000000000..8b921cba4a6645a2e8e3d62632b3e8797491898f
--- /dev/null
+++ b/ext/rbu/rbupass.test
@@ -0,0 +1,81 @@
+# 2023 January 13
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname [info script]] rbu_common.tcl]
+if_no_rbu_support { finish_test ; return }
+set ::testprefix rbupass
+
+if {[info commands register_demovfs]==""} {
+  finish_test
+  return
+}
+
+db close
+
+register_demovfs
+sqlite3rbu_create_vfs myvfs demo
+
+sqlite3 db file:test.db?vfs=myvfs -uri 1
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+  INSERT INTO t1 VALUES(1, 2);
+  SELECT * FROM t1;
+} {1 2}
+
+if {[permutation]!="inmemory_journal"} {
+  do_execsql_test 1.1 {
+    PRAGMA journal_mode = wal;
+  } {delete}
+}
+
+do_execsql_test 1.2 {
+  SELECT * FROM t1;
+} {1 2}
+
+do_test 1.3 {
+  forcedelete rbu.db
+  sqlite3 rbu rbu.db
+  rbu eval {
+    CREATE TABLE data_t1(a, b, rbu_control);
+    INSERT INTO data_t1 VALUES(2, 4, 0);
+  }
+  rbu close
+} {}
+
+do_test 1.4 {
+  sqlite3rbu rbu test.db rbu.db
+} {rbu}
+do_test 1.5 {
+  rbu step
+} {SQLITE_CANTOPEN}
+do_test 1.6 {
+  list [catch { rbu close } msg] $msg
+} {1 {SQLITE_CANTOPEN - unable to open database file}}
+
+do_test 1.7 {
+  sqlite3rbu_vacuum rbu test.db
+} {rbu}
+do_test 1.8 {
+  rbu step
+  catch { rbu close } 
+} {1}
+
+do_execsql_test 1.9 {
+  SELECT * FROM t1;
+} {1 2}
+
+db close
+sqlite3rbu_destroy_vfs myvfs 
+unregister_demovfs
+sqlite3_shutdown
+finish_test
+
diff --git a/ext/rbu/rbuprogress.test b/ext/rbu/rbuprogress.test
new file mode 100644
index 0000000000000000000000000000000000000000..072683742475c448861f7bb599891cf7537ae720
--- /dev/null
+++ b/ext/rbu/rbuprogress.test
@@ -0,0 +1,451 @@
+# 2016 March 18
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname [info script]] rbu_common.tcl]
+if_no_rbu_support { finish_test ; return }
+set ::testprefix rbuprogress
+
+
+proc create_db_file {filename sql} {
+  forcedelete $filename
+  sqlite3 tmpdb $filename  
+  tmpdb eval $sql
+  tmpdb close
+}
+
+# Create a simple RBU database. That expects to write to a table:
+#
+#   CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+#
+proc create_rbu1 {filename} {
+  create_db_file $filename {
+    CREATE TABLE data_t1(a, b, c, rbu_control);
+    INSERT INTO data_t1 VALUES(1, 2, 3, 0);
+    INSERT INTO data_t1 VALUES(2, 'two', 'three', 0);
+    INSERT INTO data_t1 VALUES(3, NULL, 8.2, 0);
+
+    CREATE TABLE rbu_count(tbl, cnt);
+    INSERT INTO rbu_count VALUES('data_t1', 3);
+  }
+  return $filename
+}
+
+
+do_execsql_test 1.0 {
+  PRAGMA page_size = 4096;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+}
+
+do_test 1.1 {
+  create_rbu1 rbu.db
+  sqlite3rbu rbu test.db rbu.db
+  rbu bp_progress
+} {0 0}
+do_test 1.2 { rbu step ; rbu bp_progress } {3333 0}
+do_test 1.3 { rbu step ; rbu bp_progress } {6666 0}
+do_test 1.4 { rbu step ; rbu bp_progress } {10000 0}
+do_test 1.5 { rbu step ; rbu bp_progress } {10000 0}
+do_test 1.6 { rbu step ; rbu bp_progress } {10000 0}
+do_test 1.7 { rbu step ; rbu bp_progress } {10000 5000}
+do_test 1.8 { rbu step ; rbu bp_progress } {10000 10000}
+do_test 1.9 { rbu step ; rbu bp_progress } {10000 10000}
+
+do_test 1.10 {
+  rbu close
+} {SQLITE_DONE}
+
+#-------------------------------------------------------------------------
+#
+proc do_sp_test {tn bReopen target rbu reslist} {
+  uplevel [list do_test $tn [subst -nocommands {
+    if {$bReopen==0} { sqlite3rbu rbu $target $rbu }
+    set res [list]
+    while 1 {
+      if {$bReopen} { sqlite3rbu rbu $target $rbu }
+      set rc [rbu step]
+      if {[set rc] != "SQLITE_OK"} { rbu close ; error "error 1" }
+      lappend res [lindex [rbu bp_progress] 0]
+      if {[lindex [set res] end]==10000} break
+      if {$bReopen} { rbu close }
+    }
+    if {[set res] != [list $reslist]} {
+      rbu close
+      error "1. reslist incorrect (expect=$reslist got=[set res])"
+    }
+
+    # One step to clean up the temporary tables used to update the only
+    # target table in the rbu database. And one more to move the *-oal 
+    # file to *-wal. After each of these steps, the progress remains
+    # at "10000 0".
+    #
+    if {[lindex [list $reslist] 0]!=-1} {
+      rbu step
+      set res [rbu bp_progress]
+      if {[set res] != [list 10000 0]} {
+        rbu close
+        error "2. reslist incorrect (expect=10000 0 got=[set res])"
+      }
+    }
+
+    rbu step
+    set res [rbu bp_progress]
+    if {[set res] != [list 10000 0]} {
+      rbu close
+      error "3. reslist incorrect (expect=10000 0 got=[set res])"
+    }
+
+    # Do the checkpoint.
+    while {[rbu step]=="SQLITE_OK"} { 
+      foreach {a b} [rbu bp_progress] {}
+      if {[set a]!=10000 || [set b]<=0 || [set b]>10000} {
+        rbu close
+        error "4. reslist incorrect (expect=10000 1..10000 got=[set a] [set b])"
+      }
+    }
+
+    set res [rbu bp_progress]
+    if {[set res] != [list 10000 10000]} {
+      rbu close
+      error "5. reslist is incorrect (expect=10000 10000 got=[set res])"
+    }
+
+    rbu close
+  }] {SQLITE_DONE}]
+}
+
+foreach {bReopen} { 0 1 } {
+  reset_db
+  do_test 2.$bReopen.1.0 {
+    execsql {
+      CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+    }
+    create_db_file rbu.db {
+      CREATE TABLE data_t1(a, b, c, rbu_control);
+      INSERT INTO data_t1 VALUES(4, 4, 4, 0);
+      INSERT INTO data_t1 VALUES(5, 5, 5, 0);
+  
+      CREATE TABLE rbu_count(tbl, cnt);
+      INSERT INTO rbu_count VALUES('data_t1', 2);
+    }
+  } {}
+  do_sp_test 2.$bReopen.1.1 $bReopen test.db rbu.db {5000 10000}
+  
+  reset_db
+  do_test 2.$bReopen.2.0 {
+    execsql { CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c) }
+    create_rbu1 rbu.db
+  } {rbu.db}
+  do_sp_test 2.$bReopen.2.1 $bReopen test.db rbu.db {3333 6666 10000}
+  
+  reset_db
+  do_test 2.$bReopen.3.0 {
+    execsql { 
+      CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+      CREATE INDEX i1 ON t1(b);
+      INSERT INTO t1 VALUES(1, 1, 1);
+      INSERT INTO t1 VALUES(2, 2, 2);
+      INSERT INTO t1 VALUES(3, 3, 3);
+    }
+    create_db_file rbu.db {
+      CREATE TABLE data_t1(a, b, c, rbu_control);
+      INSERT INTO data_t1 VALUES(4, 4, 4, 0);
+      INSERT INTO data_t1 VALUES(2, NULL, NULL, 1);
+      INSERT INTO data_t1 VALUES(5, NULL, NULL, 1);
+  
+      CREATE TABLE rbu_count(tbl, cnt);
+      INSERT INTO rbu_count VALUES('data_t1', 3);
+    }
+  } {}
+  do_sp_test 2.$bReopen.3.1 $bReopen test.db rbu.db {1666 3333 6000 8000 10000}
+  
+  reset_db
+  do_test 2.$bReopen.4.0 {
+    execsql { 
+      CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+      CREATE INDEX i1 ON t1(b);
+      INSERT INTO t1 VALUES(1, 1, 1);
+      INSERT INTO t1 VALUES(2, 2, 2);
+      INSERT INTO t1 VALUES(3, 3, 3);
+    }
+    create_db_file rbu.db {
+      CREATE TABLE data_t1(a, b, c, rbu_control);
+      INSERT INTO data_t1 VALUES(2, 4, 4, '.xx');
+  
+      CREATE TABLE rbu_count(tbl, cnt);
+      INSERT INTO rbu_count VALUES('data_t1', 1);
+    }
+  } {}
+  do_sp_test 2.$bReopen.4.1 $bReopen test.db rbu.db {3333 6666 10000}
+  
+  reset_db
+  do_test 2.$bReopen.5.0 {
+    execsql { 
+      CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+      CREATE INDEX i1 ON t1(b);
+      INSERT INTO t1 VALUES(1, 1, 1);
+      INSERT INTO t1 VALUES(2, 2, 2);
+      INSERT INTO t1 VALUES(3, 3, 3);
+    }
+    create_db_file rbu.db {
+      CREATE TABLE data_t1(a, b, c, rbu_control);
+      INSERT INTO data_t1 VALUES(4, NULL, 4, '.xx');
+  
+      CREATE TABLE rbu_count(tbl, cnt);
+      INSERT INTO rbu_count VALUES('data_t1', 1);
+    }
+  } {}
+  do_sp_test 2.$bReopen.5.1 $bReopen test.db rbu.db {10000}
+
+  reset_db
+  do_test 2.$bReopen.6.0 {
+    execsql { 
+      CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+      CREATE INDEX i1 ON t1(b);
+      INSERT INTO t1 VALUES(1, 1, 1);
+      INSERT INTO t1 VALUES(2, 2, 2);
+      INSERT INTO t1 VALUES(3, 3, 3);
+    }
+    create_db_file rbu.db {
+      CREATE TABLE data_t1(a, b, c, rbu_control);
+      INSERT INTO data_t1 VALUES(4, 4, 4, 0);
+      INSERT INTO data_t1 VALUES(2, NULL, NULL, 1);
+      INSERT INTO data_t1 VALUES(5, NULL, NULL, 1);
+    }
+  } {}
+  do_sp_test 2.$bReopen.6.1 $bReopen test.db rbu.db {-1 -1 -1 -1 -1 10000}
+}
+
+#-------------------------------------------------------------------------
+# The following tests verify that the API works when resuming an update
+# during the incremental checkpoint stage.
+#
+proc do_phase2_test {tn bReopen target rbu nStep} {
+  uplevel [list do_test $tn [subst -nocommands {
+
+    # Build the OAL/WAL file:
+    sqlite3rbu rbu $target $rbu
+    while {[lindex [rbu bp_progress] 0]<10000} { 
+      set rc [rbu step]
+      if {"SQLITE_OK" != [set rc]} { rbu close }
+    }
+
+    # Clean up the temp tables and move the *-oal file to *-wal.
+    rbu step
+    rbu step
+
+    for {set i 0} {[set i] < $nStep} {incr i} {
+      if {$bReopen} {
+        rbu close
+        sqlite3rbu rbu $target $rbu
+      }
+      rbu step
+      set res [rbu bp_progress]
+      set expect [expr (1 + [set i]) * 10000 / $nStep]
+      if {[lindex [set res] 1] != [set expect]} {
+        error "Have [set res], expected 10000 [set expect]"
+      }
+    }
+
+    set rc [rbu step]
+    if {[set rc] != "SQLITE_DONE"} {
+      error "Have [set rc], expected SQLITE_DONE" 
+    }
+
+    rbu close
+  }] {SQLITE_DONE}]
+}
+
+foreach bReopen {0 1} {
+  do_test 3.$bReopen.1.0 {
+    reset_db
+    execsql {
+      PRAGMA page_size = 4096;
+      CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+      CREATE TABLE t2(a INTEGER PRIMARY KEY, b);
+      CREATE TABLE t3(a INTEGER PRIMARY KEY, b);
+      CREATE TABLE t4(a INTEGER PRIMARY KEY, b);
+    }
+    create_db_file rbu.db {
+      CREATE TABLE data_t1(a, b, rbu_control);
+      CREATE TABLE data_t2(a, b, rbu_control);
+      CREATE TABLE data_t3(a, b, rbu_control);
+      CREATE TABLE data_t4(a, b, rbu_control);
+      INSERT INTO data_t1 VALUES(1, 2, 0);
+      INSERT INTO data_t2 VALUES(1, 2, 0);
+      INSERT INTO data_t3 VALUES(1, 2, 0);
+      INSERT INTO data_t4 VALUES(1, 2, 0);
+  
+      CREATE TABLE rbu_count(tbl, cnt);
+      INSERT INTO rbu_count VALUES('data_t1', 1);
+      INSERT INTO rbu_count VALUES('data_t2', 1);
+      INSERT INTO rbu_count VALUES('data_t3', 1);
+      INSERT INTO rbu_count VALUES('data_t4', 1);
+    }
+  } {}
+  do_phase2_test 3.$bReopen.1.1 $bReopen test.db rbu.db 5
+}
+
+
+foreach {bReopen} { 0 1 } {
+  foreach {tn tbl} {
+    ipk { CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c) }
+    wr  { CREATE TABLE t1(a INT PRIMARY KEY, b, c) WITHOUT ROWID }
+    pk  { CREATE TABLE t1(a INT PRIMARY KEY, b, c) }
+  } {
+
+    foreach {tn2 rbusql r1 r3} {
+      1 {
+        CREATE TABLE data0_t1(a, b, c, rbu_control);
+        INSERT INTO data0_t1 VALUES(15, 15, 15, 0);
+        INSERT INTO data0_t1 VALUES(20, 20, 20, 0);
+        CREATE TABLE rbu_count(tbl, cnt);
+        INSERT INTO rbu_count VALUES('data0_t1', 2); 
+      } 
+      {2500 5000 7500 10000}
+      {1666 3333 5000 6666 8333 10000}
+
+      2 {
+        CREATE TABLE data0_t1(a, b, c, rbu_control);
+        INSERT INTO data0_t1 VALUES(10, 10, 10, 2);
+        CREATE TABLE rbu_count(tbl, cnt);
+        INSERT INTO rbu_count VALUES('data0_t1', 1); 
+      } 
+      {3333 6666 10000}
+      {2000 4000 6000 8000 10000}
+
+      3 {
+        CREATE TABLE data0_t1(a, b, c, rbu_control);
+        INSERT INTO data0_t1 VALUES(7, 7, 7, 2);
+        INSERT INTO data0_t1 VALUES(10, 10, 10, 2);
+        CREATE TABLE rbu_count(tbl, cnt);
+        INSERT INTO rbu_count VALUES('data0_t1', 2); 
+      } 
+      {2500 4000 6000 8000 10000}
+      {1666 2500 3750 5000 6250 7500 8750 10000}
+
+    } {
+
+      reset_db ; execsql $tbl
+      do_test 4.$tn.$bReopen.$tn2.0 {
+        execsql {
+          CREATE INDEX t1c ON t1(c);
+          INSERT INTO t1 VALUES(1, 1, 1);
+          INSERT INTO t1 VALUES(5, 5, 5);
+          INSERT INTO t1 VALUES(10, 10, 10);
+        }
+        create_db_file rbu.db $rbusql
+      } {}
+
+      set R(ipk) $r1
+      set R(wr) $r1
+      set R(pk) $r3
+      do_sp_test 4.$tn.$bReopen.$tn2.1 $bReopen test.db rbu.db $R($tn)
+    }
+  }
+}
+
+foreach {bReopen} { 0 1 } {
+  foreach {tn tbl} {
+    nopk { 
+      CREATE TABLE t1(a, b, c);
+      CREATE INDEX t1c ON t1(c);
+    }
+    vtab { 
+      CREATE VIRTUAL TABLE t1 USING fts5(a, b, c);
+    }
+  } {
+
+    if {$tn=="vtab"} { ifcapable !fts5 break }
+
+    foreach {tn2 rbusql r1 r2} {
+      1 {
+        CREATE TABLE data0_t1(a, b, c, rbu_rowid, rbu_control);
+        INSERT INTO data0_t1 VALUES(15, 15, 15, 4, 0);
+        INSERT INTO data0_t1 VALUES(20, 20, 20, 5, 0);
+        CREATE TABLE rbu_count(tbl, cnt);
+        INSERT INTO rbu_count VALUES('data0_t1', 2); 
+      } 
+      {2500 5000 7500 10000}
+      {5000 10000}
+
+      2 {
+        CREATE TABLE data0_t1(rbu_rowid, a, b, c, rbu_control);
+        INSERT INTO data0_t1 VALUES(0, 7, 7, 7, 2);
+        INSERT INTO data0_t1 VALUES(2, 10, 10, 10, 2);
+        CREATE TABLE rbu_count(tbl, cnt);
+        INSERT INTO rbu_count VALUES('data0_t1', 2); 
+      } 
+      {2500 4000 6000 8000 10000}
+      {5000 10000}
+
+      3 {
+        CREATE TABLE data0_t1(rbu_rowid, a, b, c, rbu_control);
+        INSERT INTO data0_t1 VALUES(1, NULL, NULL, NULL, 1);
+        INSERT INTO data0_t1 VALUES(2, NULL, NULL, 7, '..x');
+        CREATE TABLE rbu_count(tbl, cnt);
+        INSERT INTO rbu_count VALUES('data0_t1', 2); 
+      } 
+      {2500 4000 6000 8000 10000}
+      {5000 10000}
+    } {
+
+      reset_db ; execsql $tbl
+      do_test 5.$tn.$bReopen.$tn2.0 {
+        execsql {
+          INSERT INTO t1 VALUES(1, 1, 1);
+          INSERT INTO t1 VALUES(5, 5, 5);
+          INSERT INTO t1 VALUES(10, 10, 10);
+        }
+        create_db_file rbu.db $rbusql
+      } {}
+
+      set R(nopk) $r1
+      set R(vtab) $r2
+      do_sp_test 5.$tn.$bReopen.$tn2.1 $bReopen test.db rbu.db $R($tn)
+    }
+  }
+}
+
+#-------------------------------------------------------------------------
+# Test that sqlite3_bp_progress() works with an RBU vacuum if there
+# is an rbu_count table in the db being vacuumed.
+#
+reset_db
+do_execsql_test 6.0 {
+  CREATE TABLE t1(a, b, c);
+  CREATE INDEX i1 ON t1(a);
+  CREATE INDEX i2 ON t1(b);
+  WITH s(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<100
+  )
+  INSERT INTO t1 SELECT i, i, i FROM s;
+  CREATE TABLE rbu_count(tbl TEXT PRIMARY KEY, cnt INTEGER) WITHOUT ROWID;
+  INSERT INTO rbu_count VALUES('t1', (SELECT count(*) FROM t1));
+  INSERT INTO rbu_count VALUES('rbu_count', 2);
+}
+
+forcedelete state.db
+do_test 6.1 {
+  set maxA 0
+  set maxB 0
+  sqlite3rbu_vacuum rbu test.db state.db
+  while {[rbu step]=="SQLITE_OK"} {
+    foreach {a b} [rbu bp_progress] {
+      if {$a > $maxA} { set maxA $a }
+      if {$b > $maxB} { set maxB $b }
+    }
+  }
+  list [rbu close] $maxA $maxB
+} {SQLITE_DONE 10000 10000}
+
+
+finish_test
diff --git a/ext/rbu/rburename.test b/ext/rbu/rburename.test
new file mode 100644
index 0000000000000000000000000000000000000000..e2bacaea501ae8fb7c42b46004c450febd799a52
--- /dev/null
+++ b/ext/rbu/rburename.test
@@ -0,0 +1,55 @@
+# 2022 November 07
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+#
+
+source [file join [file dirname [info script]] rbu_common.tcl]
+if_no_rbu_support { finish_test ; return }
+set ::testprefix rburename
+
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b);
+  INSERT INTO t1 VALUES(1, 2);
+  INSERT INTO t1 VALUES(3, 4);
+  INSERT INTO t1 VALUES(5, 6);
+}
+
+forcedelete test.db-vacuum
+
+proc my_rename {old new} {
+  lappend ::my_rename_calls [list [file tail $old] [file tail $new]]
+  file rename $old $new
+}
+
+do_test 1.1 {
+  sqlite3rbu_vacuum rbu test.db
+  rbu rename_handler my_rename
+  while {[rbu step]=="SQLITE_OK"} {}
+  rbu close
+} SQLITE_DONE
+
+do_test 1.2 {
+  set ::my_rename_calls
+} {{test.db-oal test.db-wal}}
+
+proc my_rename {old new} {
+  error "something went wrong"
+}
+
+do_test 1.3 {
+  sqlite3rbu_vacuum rbu test.db
+  rbu rename_handler my_rename
+  while {[rbu step]=="SQLITE_OK"} {}
+  list [catch { rbu close } msg] $msg
+} {1 SQLITE_IOERR}
+
+finish_test
diff --git a/ext/rbu/rburesume.test b/ext/rbu/rburesume.test
new file mode 100644
index 0000000000000000000000000000000000000000..cdd8908435ca6a8846a04e5cd91666313b270e80
--- /dev/null
+++ b/ext/rbu/rburesume.test
@@ -0,0 +1,256 @@
+# 2017 January 13
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# TESTRUNNER: slow
+#
+# This file contains tests for resumption of RBU operations in the
+# case where the previous RBU process crashed.
+#
+
+source [file join [file dirname [info script]] rbu_common.tcl]
+if_no_rbu_support { finish_test ; return }
+set ::testprefix rburesume
+
+forcedelete test.db-shm test.db-oal
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a PRIMARY KEY, b, c);
+  CREATE INDEX t1a ON t1(a);
+  CREATE INDEX t1b ON t1(b);
+  CREATE INDEX t1c ON t1(c);
+  WITH s(i) AS (
+    VALUES(1) UNION ALL SELECT i+1 FROM s WHERE i<50
+  )
+  INSERT INTO t1 SELECT randomblob(50), randomblob(75), randomblob(100) FROM s;
+}
+db_save_and_close
+
+do_test 1.1 {
+  list [file exists test.db] \
+       [file exists test.db-wal] \
+       [file exists test.db-shm] \
+       [file exists test.db-oal]
+} {1 0 0 0}
+
+# Each iteration of the following loop:
+#
+#   1. Restores the db to the state it was in following test case 1.0
+#   2. Opens an RBU vacuum and steps it $n times.
+#   3. Closes the RBU vacuum handled opened in (2).
+#   4. Opens a second RBU vacuum handle, resumes and completes the vacuum op. 
+#
+# The loop runs until $n is large enough that step (2) vacuums the entire
+# database.
+#
+for {set n 1} {$n < 5000} {incr n} {
+  db_restore
+  forcedelete state.db
+  sqlite3rbu_vacuum rbu test.db state.db
+  for {set i 0} {$i<$n} {incr i} {
+    set rc [rbu step]
+    if {$rc == "SQLITE_DONE"} break
+  }
+  rbu close
+  if {$rc == "SQLITE_DONE"} break
+
+  do_test 1.2.$n.1 {
+    sqlite3rbu_vacuum rbu test.db state.db
+    while {[rbu step]=="SQLITE_OK"} {}
+    rbu close
+  } {SQLITE_DONE}
+
+  do_test 1.2.$n.2 {
+    sqlite3 db2 test.db
+    db2 eval { 
+      SELECT count(*) FROM t1;
+      PRAGMA integrity_check;
+    }
+  } {50 ok}
+  db2 close
+}
+
+# Each iteration of this loop:
+#
+#   1. Restores the db to the state it was in following test case 1.0
+#   2. Opens an RBU vacuum and steps it $n times.
+#   3. Takes a copy of all database files and the state db.
+#   4. Opens a second RBU vacuum handle on the copy, resumes and completes the
+#      vacuum op. 
+#
+# The loop runs until $n is large enough that step (2) vacuums the entire
+# database.
+#
+for {set n 1} {$n < 5000} {incr n} {
+  db_restore
+  forcedelete state.db state.db-shm state.db-oal state.db-wal
+  sqlite3rbu_vacuum rbu test.db state.db
+  for {set i 0} {$i<$n} {incr i} {
+    set rc [rbu step]
+    if {$rc == "SQLITE_DONE"} break
+  }
+  if {$rc == "SQLITE_DONE"} {
+    rbu close
+    break
+  }
+
+  foreach f {test.db test.db-oal test.db-wal test.db-vacuum} {
+    set f2 [string map [list test.db test.db2] $f]
+    if {[file exists $f]} {
+      forcecopy $f $f2
+    } else {
+      forcedelete $f2
+    }
+  }
+  forcecopy state.db state.db2
+  rbu close
+
+  do_test 1.3.$n.1 {
+    sqlite3rbu_vacuum rbu test.db2 state.db2
+    while {[rbu step]=="SQLITE_OK"} {}
+    rbu close
+  } {SQLITE_DONE}
+
+  do_test 1.3.$n.2 {
+    sqlite3 db2 test.db2
+    db2 eval { 
+      SELECT count(*) FROM t1;
+      PRAGMA integrity_check;
+    }
+  } {50 ok}
+  db2 close
+}
+
+# Each iteration of this loop:
+#
+#   1. Restores the db to the state it was in following test case 1.0
+#   2. Opens an RBU vacuum and steps it 10 times. Then closes it.
+#   2. Opens an RBU vacuum and steps it $n times.
+#   3. Takes a copy of all database files and the state db.
+#   4. Opens a second RBU vacuum handle on the copy, resumes and completes the
+#      vacuum op. 
+#
+# The loop runs until $n is large enough that step (3) vacuums the entire
+# database.
+#
+for {set n 1} {$n < 5000} {incr n} {
+  db_restore
+  forcedelete state.db state.db-shm state.db-oal state.db-wal
+
+  sqlite3rbu_vacuum rbu test.db state.db
+  for {set i 0} {$i<10} {incr i} {
+    rbu step
+  }
+  rbu close
+
+  sqlite3rbu_vacuum rbu test.db state.db
+  for {set i 0} {$i<$n} {incr i} {
+    set rc [rbu step]
+    if {$rc == "SQLITE_DONE"} break
+  }
+  if {$rc == "SQLITE_DONE"} {
+    rbu close
+    break
+  }
+
+  foreach f {test.db test.db-oal test.db-wal test.db-vacuum} {
+    set f2 [string map [list test.db test.db2] $f]
+    if {[file exists $f]} {
+      forcecopy $f $f2
+    } else {
+      forcedelete $f2
+    }
+  }
+  forcecopy state.db state.db2
+  rbu close
+
+  do_test 1.4.$n.1 {
+    sqlite3rbu_vacuum rbu test.db2 state.db2
+    while {[rbu step]=="SQLITE_OK"} {}
+    rbu close
+  } {SQLITE_DONE}
+
+  do_test 1.4.$n.2 {
+    sqlite3 db2 test.db2
+    db2 eval { 
+      SELECT count(*) FROM t1;
+      PRAGMA integrity_check;
+    }
+  } {50 ok}
+  db2 close
+}
+
+forcedelete rbu.db
+do_test 2.0 {
+  sqlite3 db2 rbu.db
+  db2 eval {
+    CREATE TABLE data_t1(a, b, c, rbu_control);
+    WITH s(i) AS (
+        VALUES(1) UNION ALL SELECT i+1 FROM s WHERE i<10
+    )
+    INSERT INTO data_t1 
+      SELECT randomblob(50), randomblob(75), randomblob(100), 0 FROM s;
+  }
+  db2 close
+} {}
+
+# Each iteration of this loop:
+#
+#   1. Restores the db to the state it was in following test case 1.0
+#   2. Opens an RBU handle to apply the RBU update created in test case 2.0.
+#   3. Steps the RBU handle $n times.
+#   4. Takes a copy of all database files and the state db.
+#   5. Opens a second RBU handle on the copy, resumes and completes the
+#      RBU op. Checks it worked as expected.
+#
+# The loop runs until $n is large enough that step (3) applies the entire
+# update.
+#
+for {set n 1} {$n < 5000} {incr n} {
+  db_restore
+  forcedelete state.db state.db-shm state.db-oal state.db-wal
+  sqlite3rbu rbu test.db rbu.db state.db
+
+  for {set i 0} {$i<$n} {incr i} {
+    set rc [rbu step]
+    if {$rc == "SQLITE_DONE"} break
+  }
+  if {$rc == "SQLITE_DONE"} {
+    rbu close
+    break
+  }
+
+  foreach f {test.db test.db-oal test.db-wal test.db-vacuum} {
+    set f2 [string map [list test.db test.db2] $f]
+    if {[file exists $f]} {
+      forcecopy $f $f2
+    } else {
+      forcedelete $f2
+    }
+  }
+  forcecopy state.db state.db2
+  rbu close
+
+  do_test 2.$n.1 {
+    sqlite3rbu rbu test.db2 rbu.db state.db2
+    while {[rbu step]=="SQLITE_OK"} {}
+    rbu close
+  } {SQLITE_DONE}
+
+  do_test 2.$n.2 {
+    sqlite3 db2 test.db2
+    db2 eval { 
+      SELECT count(*) FROM t1;
+      PRAGMA integrity_check;
+    }
+  } {60 ok}
+  db2 close
+}
+
+finish_test
diff --git a/ext/rbu/rbusave.test b/ext/rbu/rbusave.test
new file mode 100644
index 0000000000000000000000000000000000000000..8e9708980be4215c04c11a5ea8abe58fcb3043b4
--- /dev/null
+++ b/ext/rbu/rbusave.test
@@ -0,0 +1,102 @@
+# 2015 August 14
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname [info script]] rbu_common.tcl]
+if_no_rbu_support { finish_test ; return }
+set ::testprefix rbusave
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a PRIMARY KEY, b, c) WITHOUT ROWID;
+  CREATE TABLE t2(a INTEGER PRIMARY KEY, b, c);
+  CREATE INDEX i1 ON t1(b);
+  CREATE INDEX i2 ON t2(c, b);
+
+  INSERT INTO t1 VALUES(1, 1, 1);
+  INSERT INTO t1 VALUES(2, 2, 2);
+  INSERT INTO t1 VALUES(3, 3, 3);
+
+  INSERT INTO t2 VALUES(1, 1, 1);
+  INSERT INTO t2 VALUES(2, 2, 2);
+  INSERT INTO t2 VALUES(3, 3, 3);
+}
+
+do_test 1.1 {
+  forcedelete test.db2
+  sqlite3 db2 test.db2
+  db2 eval {
+    CREATE TABLE data_t1(a, b, c, rbu_control);
+    INSERT INTO data_t1 VALUES(4, 4, 4, 0);
+    INSERT INTO data_t1 VALUES(2, NULL, NULL, 1);
+    INSERT INTO data_t1 VALUES(1, 'one', NULL, '.x.');
+
+    CREATE TABLE data_t2(a, b, c, rbu_control);
+    INSERT INTO data_t2 VALUES(4, 4, 4, 0);
+    INSERT INTO data_t2 VALUES(2, NULL, NULL, 1);
+    INSERT INTO data_t2 VALUES(1, 'one', NULL, '.x.');
+  }
+} {}
+
+proc test_to_bak {} {
+  foreach f {
+    test.db test.db-wal test.db-oal test.db-journal 
+    test.db2 test.db2-wal test.db2-oal test.db2-journal 
+  } {
+    set t [string map {test bak} $f]
+    forcedelete $t
+    if {[file exists $f]} { forcecopy $f $t }
+  }
+}
+
+do_test 1.2 {
+  test_to_bak
+  sqlite3rbu rrr bak.db bak.db2
+  set nStep 0
+  while {[rrr step]=="SQLITE_OK"} {incr nStep}
+  set res2 [rrr close]
+} {SQLITE_DONE}
+
+
+sqlite3rbu rbu test.db test.db2
+set res "SQLITE_OK"
+for {set i 1} {$res=="SQLITE_OK"} {incr i} {
+  set res [rbu step]
+
+  do_test 1.3.$i.1 {
+    rbu savestate
+    test_to_bak
+    sqlite3rbu rrr bak.db bak.db2
+    set nRem 0
+    while {[rrr step]=="SQLITE_OK"} {incr nRem}
+    set res2 [rrr close]
+  } {SQLITE_DONE}
+
+  do_test 1.3.$i.3 { expr $nRem+$i } [expr {$nStep + ($res=="SQLITE_DONE")}]
+
+  do_test 1.3.$i.3 {
+    sqlite3 bak bak.db
+    bak eval {
+      SELECT * FROM t1;
+      SELECT * FROM t2;
+    }
+  } {1 one 1 3 3 3 4 4 4 1 one 1 3 3 3 4 4 4}
+
+  bak close
+}
+
+do_test 1.4 { rbu close } {SQLITE_DONE}
+
+do_execsql_test 1.5 {
+  SELECT * FROM t1;
+  SELECT * FROM t2;
+} {1 one 1 3 3 3 4 4 4 1 one 1 3 3 3 4 4 4}
+
+finish_test
diff --git a/ext/rbu/rbusplit.test b/ext/rbu/rbusplit.test
new file mode 100644
index 0000000000000000000000000000000000000000..fb1d7238d4b79bf81b3fafc0963d32fcbe29a9ff
--- /dev/null
+++ b/ext/rbu/rbusplit.test
@@ -0,0 +1,93 @@
+# 2018 April 28
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+#
+
+source [file join [file dirname [info script]] rbu_common.tcl]
+if_no_rbu_support { finish_test ; return }
+set ::testprefix rbusplit
+
+db close
+
+autoinstall_test_functions
+
+proc build_db {db} {
+  $db eval {
+    CREATE TABLE t1(a PRIMARY KEY, b, c);
+    CREATE TABLE t2(a PRIMARY KEY, b, c);
+
+    CREATE INDEX t1c ON t1(c);
+  }
+}
+
+proc build_rbu {filename} {
+  forcedelete $filename
+  sqlite3 dbRbu $filename
+  dbRbu eval {
+    CREATE TABLE data0_t1(a, b, c, rbu_control);
+    CREATE TABLE data1_t1(a, b, c, rbu_control);
+    CREATE TABLE data2_t1(a, b, c, rbu_control);
+    CREATE TABLE data3_t1(a, b, c, rbu_control);
+
+    CREATE TABLE data_t2(a, b, c, rbu_control);
+
+    INSERT INTO data0_t1 VALUES(1, 1, 1, 0);
+    INSERT INTO data0_t1 VALUES(2, 2, 2, 0);
+    INSERT INTO data0_t1 VALUES(3, 3, 3, 0);
+    INSERT INTO data0_t1 VALUES(4, 4, 4, 0);
+    INSERT INTO data1_t1 VALUES(5, 5, 5, 0);
+    INSERT INTO data1_t1 VALUES(6, 6, 6, 0);
+    INSERT INTO data1_t1 VALUES(7, 7, 7, 0);
+    INSERT INTO data1_t1 VALUES(8, 8, 8, 0);
+    INSERT INTO data3_t1 VALUES(9, 9, 9, 0);
+
+    INSERT INTO data_t2 VALUES(1, 1, 1, 0);
+    INSERT INTO data_t2 VALUES(2, 2, 2, 0);
+    INSERT INTO data_t2 VALUES(3, 3, 3, 0);
+    INSERT INTO data_t2 VALUES(4, 4, 4, 0);
+    INSERT INTO data_t2 VALUES(5, 5, 5, 0);
+    INSERT INTO data_t2 VALUES(6, 6, 6, 0);
+    INSERT INTO data_t2 VALUES(7, 7, 7, 0);
+    INSERT INTO data_t2 VALUES(8, 8, 8, 0);
+    INSERT INTO data_t2 VALUES(9, 9, 9, 0);
+  }
+  
+  dbRbu close
+}
+
+foreach {tn cmd} {
+  1 run_rbu
+  2 step_rbu
+} {
+  reset_db
+  build_db db
+  build_rbu testrbu.db
+
+  do_test 1.$tn.1 {
+    $cmd test.db testrbu.db
+  } {SQLITE_DONE}
+  do_execsql_test 1.$tn.1 {
+    SELECT * FROM t1;
+  } {
+    1 1 1 2 2 2 3 3 3 4 4 4
+    5 5 5 6 6 6 7 7 7 8 8 8
+    9 9 9
+  }
+  do_execsql_test 1.$tn.2 {
+    SELECT * FROM t2;
+  } {
+    1 1 1 2 2 2 3 3 3 4 4 4
+    5 5 5 6 6 6 7 7 7 8 8 8
+    9 9 9
+  }
+}
+
+finish_test
diff --git a/ext/rbu/rbutemplimit.test b/ext/rbu/rbutemplimit.test
new file mode 100644
index 0000000000000000000000000000000000000000..88b5f4152defb4b5d4e9c4d0396c952a6d28462d
--- /dev/null
+++ b/ext/rbu/rbutemplimit.test
@@ -0,0 +1,129 @@
+# 2014 August 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# TESTRUNNER: slow
+
+source [file join [file dirname [info script]] rbu_common.tcl]
+if_no_rbu_support { finish_test ; return }
+set ::testprefix rbutemplimit
+
+db close
+
+proc setup_databases {} {
+  forcedelete test.db2
+  forcedelete test.db
+  sqlite3 db test.db
+  execsql {
+    -- Create target database schema.
+    --
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b BLOB(100), c BLOB(100));
+    CREATE TABLE t2(a INTEGER PRIMARY KEY, b BLOB(100), c BLOB(100));
+    CREATE INDEX i1b ON t1(b);
+    CREATE INDEX i1c ON t1(c);
+    CREATE INDEX i2b ON t2(b);
+    CREATE INDEX i2c ON t2(c);
+  
+    -- Create a large RBU database.
+    --
+    ATTACH 'test.db2' AS rbu;
+    CREATE TABLE rbu.data_t1(a, b, c, rbu_control);
+    WITH s(i) AS (
+      VALUES(1) UNION ALL SELECT i+1 FROM s WHERE i<10000
+    )
+    INSERT INTO data_t1 SELECT i, randomblob(100), randomblob(100), 0 FROM s;
+    CREATE TABLE rbu.data_t2(a, b, c, rbu_control);
+    WITH s(i) AS (
+      VALUES(1) UNION ALL SELECT i+1 FROM s WHERE i<15000
+    )
+    INSERT INTO data_t2 SELECT i, randomblob(100), randomblob(100), 0 FROM s;
+  }
+  db close
+}
+
+proc run_rbu_cachesize {target rbu cachesize temp_limit} {
+  sqlite3rbu rbu $target $rbu
+  rbu temp_size_limit $temp_limit
+  sqlite3_exec_nr [rbu db 1] "PRAGMA cache_size = $cachesize"
+  while 1 {
+    set rc [rbu step]
+    set ::A([rbu temp_size]) 1
+    if {$rc!="SQLITE_OK"} break
+  }
+  list [catch {rbu close} msg] $msg
+}
+
+proc step_rbu_cachesize {target rbu stepsize cachesize temp_limit} {
+  set res ""
+  while 1 {
+    sqlite3rbu rbu $target $rbu
+    rbu temp_size_limit $temp_limit
+    if { [rbu temp_size_limit -1]!=$temp_limit } { error "round trip problem!" }
+    sqlite3_exec_nr [rbu db 1] "PRAGMA cache_size = $cachesize"
+    for {set i 0} {$i < $stepsize} {incr i} {
+      set rc [rbu step]
+      set ::A([rbu temp_size]) 1
+      if {$rc!="SQLITE_OK"} break
+    }
+    set res [list [catch {rbu close} msg] $msg]
+    if {$res != "0 SQLITE_OK"} break
+  }
+  set res
+}
+
+do_test 1.1.0 { setup_databases } {}
+
+do_test 1.1.1 {
+  unset -nocomplain ::A
+  run_rbu_cachesize test.db test.db2 10 0
+} {0 SQLITE_DONE}
+
+do_test 1.1.2 { llength [array names ::A] } 3
+
+do_test 1.1.3 { 
+  foreach {a0 a1 a2} [lsort -integer [array names ::A]] {}
+  list [expr $a0==0]                         \
+       [expr $a1>1048576] [expr $a1<1200000] \
+       [expr $a2>1500000] [expr $a2<1700000]
+} {1 1 1 1 1}
+
+do_test 1.2.1 {
+  setup_databases
+  run_rbu_cachesize test.db test.db2 10 1000000
+} {1 SQLITE_FULL}
+do_test 1.2.2 { info commands rbu } {}
+
+do_test 1.3.1 {
+  setup_databases
+  run_rbu_cachesize test.db test.db2 10 1300000
+} {1 SQLITE_FULL}
+do_test 1.3.2 { info commands rbu } {}
+
+do_test 1.4.1 {
+  setup_databases
+  run_rbu_cachesize test.db test.db2 10 1800000
+} {0 SQLITE_DONE}
+do_test 1.4.2 { info commands rbu } {}
+
+do_test 1.5.1 {
+  setup_databases
+  unset -nocomplain ::A
+  step_rbu_cachesize test.db test.db2 1000 10 2400000
+} {0 SQLITE_DONE}
+do_test 1.5.2 { info commands rbu } {}
+
+do_test 1.6.1 {
+  setup_databases
+  unset -nocomplain ::A
+  step_rbu_cachesize test.db test.db2 1000 10 1400000
+} {1 SQLITE_FULL}
+do_test 1.6.2 { info commands rbu } {}
+
+finish_test
diff --git a/ext/rbu/rbuvacuum.test b/ext/rbu/rbuvacuum.test
new file mode 100644
index 0000000000000000000000000000000000000000..ad377a4bebf569c483289811bafff9f8037d11fd
--- /dev/null
+++ b/ext/rbu/rbuvacuum.test
@@ -0,0 +1,400 @@
+# 2016 April 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains tests for the RBU module. More specifically, it
+# contains tests to ensure that the sqlite3rbu_vacuum() API works as
+# expected.
+#
+
+source [file join [file dirname [info script]] rbu_common.tcl]
+if_no_rbu_support { finish_test ; return }
+set ::testprefix rbuvacuum
+
+foreach step {0 1} {
+
+  set ::testprefix rbuvacuum-step=$step
+  reset_db
+
+  # Simplest possible vacuum.
+  do_execsql_test 1.0 {
+    PRAGMA page_size = 1024;
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+    INSERT INTO t1 VALUES(1, 2, 3);
+    INSERT INTO t1 VALUES(4, 5, 6);
+    INSERT INTO t1 VALUES(7, 8, 9);
+    PRAGMA integrity_check;
+  } {ok}
+  do_rbu_vacuum_test 1.1 $step
+
+  # A vacuum that actually reclaims space.
+  do_execsql_test 1.2.1 {
+    INSERT INTO t1 VALUES(8, randomblob(900), randomblob(900));
+    INSERT INTO t1 VALUES(9, randomblob(900), randomblob(900));
+    INSERT INTO t1 VALUES(10, randomblob(900), randomblob(900));
+    INSERT INTO t1 VALUES(11, randomblob(900), randomblob(900));
+    INSERT INTO t1 VALUES(12, randomblob(900), randomblob(900));
+    PRAGMA page_count;
+  } {12}
+  do_execsql_test 1.2.2 {
+    DELETE FROM t1 WHERE rowid BETWEEN 8 AND 11;
+    PRAGMA page_count;
+  } {12}
+  do_rbu_vacuum_test 1.2.3 $step
+  do_execsql_test 1.2.4 {
+    PRAGMA page_count;
+  } {3}
+  
+  # Add an index to the table.
+  do_execsql_test 1.3.1 {
+    CREATE INDEX t1b ON t1(b);
+    INSERT INTO t1 VALUES(13, randomblob(900), randomblob(900));
+    INSERT INTO t1 VALUES(14, randomblob(900), randomblob(900));
+    INSERT INTO t1 VALUES(15, randomblob(900), randomblob(900));
+    INSERT INTO t1 VALUES(16, randomblob(900), randomblob(900));
+    PRAGMA page_count;
+  } {18}
+  do_execsql_test 1.3.2 {
+    DELETE FROM t1 WHERE rowid BETWEEN 12 AND 15;
+    PRAGMA page_count;
+  } {18}
+  do_rbu_vacuum_test 1.3.3 $step
+  do_execsql_test 1.3.4 {
+    PRAGMA page_count;
+  } {5}
+
+  # WITHOUT ROWID table.
+  do_execsql_test 1.4.1 {
+    CREATE TABLE t2(a, b, c, PRIMARY KEY(a, b)) WITHOUT ROWID;
+
+    INSERT INTO t2 VALUES(randomblob(900), 1, randomblob(900));
+    INSERT INTO t2 VALUES(randomblob(900), 2, randomblob(900));
+    INSERT INTO t2 VALUES(randomblob(900), 3, randomblob(900));
+    INSERT INTO t2 VALUES(randomblob(900), 4, randomblob(900));
+    INSERT INTO t2 VALUES(randomblob(900), 6, randomblob(900));
+    INSERT INTO t2 VALUES(randomblob(900), 7, randomblob(900));
+    INSERT INTO t2 VALUES(randomblob(900), 8, randomblob(900));
+
+    DELETE FROM t2 WHERE b BETWEEN 2 AND 7;
+    PRAGMA page_count;
+  } {20}
+  do_rbu_vacuum_test 1.4.2 $step
+  do_execsql_test 1.4.3 {
+    PRAGMA page_count;
+  } {10}
+  
+  # WITHOUT ROWID table with an index.
+  do_execsql_test 1.4.1 {
+    CREATE INDEX t2c ON t2(c);
+
+    INSERT INTO t2 VALUES(randomblob(900), 9, randomblob(900));
+    INSERT INTO t2 VALUES(randomblob(900), 10, randomblob(900));
+    INSERT INTO t2 VALUES(randomblob(900), 11, randomblob(900));
+    INSERT INTO t2 VALUES(randomblob(900), 12, randomblob(900));
+    INSERT INTO t2 VALUES(randomblob(900), 13, randomblob(900));
+
+    DELETE FROM t2 WHERE b BETWEEN 8 AND 12;
+    PRAGMA page_count;
+  } {35}
+  do_rbu_vacuum_test 1.4.2 $step
+  do_execsql_test 1.4.3 {
+    PRAGMA page_count;
+  } {15}
+  do_execsql_test 1.4.4 {
+    VACUUM;
+    PRAGMA page_count;
+  } {15}
+
+  do_execsql_test 1.5.1 {
+    CREATE TABLE t3(a, b, c);
+    INSERT INTO t3 VALUES('a', 'b', 'c');
+    INSERT INTO t3 VALUES('d', 'e', 'f');
+    INSERT INTO t3 VALUES('g', 'h', 'i');
+  }
+  do_rbu_vacuum_test 1.5.2 $step
+  do_execsql_test 1.5.3 {
+    SELECT * FROM t3
+  } {a b c d e f g h i}
+  do_execsql_test 1.5.4 {
+    CREATE INDEX t3a ON t3(a);
+    CREATE INDEX t3b ON t3(b);
+    CREATE INDEX t3c ON t3(c);
+    INSERT INTO t3 VALUES('j', 'k', 'l');
+    DELETE FROM t3 WHERE a = 'g';
+  }
+  do_rbu_vacuum_test 1.5.5 $step
+  do_execsql_test 1.5.6 {
+    SELECT rowid, * FROM t3 ORDER BY b
+  } {1 a b c 2 d e f 4 j k l}
+
+  do_execsql_test 1.6.1 {
+    CREATE TABLE t4(a PRIMARY KEY, b, c);
+    INSERT INTO t4 VALUES('a', 'b', 'c');
+    INSERT INTO t4 VALUES('d', 'e', 'f');
+    INSERT INTO t4 VALUES('g', 'h', 'i');
+  }
+  do_rbu_vacuum_test 1.6.2 $step
+  do_execsql_test 1.6.3 {
+    SELECT * FROM t4
+  } {a b c d e f g h i}
+  do_execsql_test 1.6.4 {
+    CREATE INDEX t4a ON t4(a);
+    CREATE INDEX t4b ON t4(b);
+    CREATE INDEX t4c ON t4(c);
+    
+    INSERT INTO t4 VALUES('j', 'k', 'l');
+    DELETE FROM t4 WHERE a='g';
+  }
+  do_rbu_vacuum_test 1.6.5 $step
+  do_execsql_test 1.6.6 {
+    SELECT * FROM t4 ORDER BY b
+  } {a b c d e f j k l}
+
+  reset_db
+  do_execsql_test 1.7.0 {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY AUTOINCREMENT, b);
+    INSERT INTO t1 VALUES(NULL, 'one');
+    INSERT INTO t1 VALUES(NULL, 'two');
+    DELETE FROM t1 WHERE a=2;
+    INSERT INTO t1 VALUES(NULL, 'three');
+    INSERT INTO t1 VALUES(NULL, 'four');
+    DELETE FROM t1 WHERE a=4;
+    INSERT INTO t1 VALUES(NULL, 'five');
+    INSERT INTO t1 VALUES(NULL, 'six');
+    DELETE FROM t1 WHERE a=6;
+    SELECT * FROM t1;
+  } {1 one 3 three 5 five}
+  do_rbu_vacuum_test 1.7.1 $step
+  do_execsql_test 1.7.2 {
+    INSERT INTO t1 VALUES(NULL, 'seven');
+    SELECT * FROM t1;
+  } {1 one 3 three 5 five 7 seven}
+
+  reset_db
+  do_execsql_test 1.8.0 {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY AUTOINCREMENT, b);
+    CREATE INDEX i1 ON t1(b);
+    INSERT INTO t1 VALUES(NULL, 'one');
+    INSERT INTO t1 VALUES(NULL, 'two');
+    INSERT INTO t1 VALUES(NULL, 'three');
+    INSERT INTO t1 VALUES(NULL, 'four');
+    INSERT INTO t1 VALUES(NULL, 'five');
+    INSERT INTO t1 VALUES(NULL, 'six');
+    ANALYZE;
+    SELECT * FROM sqlite_stat1;
+  } {t1 i1 {6 1}}
+  do_rbu_vacuum_test 1.8.1 $step
+  do_execsql_test 1.7.2 {
+    SELECT * FROM sqlite_stat1;
+  } {t1 i1 {6 1}}
+
+  reset_db
+  do_execsql_test 1.9.0 {
+    PRAGMA page_size = 8192;
+    PRAGMA auto_vacuum = 2;
+    PRAGMA user_version = 412;
+    PRAGMA application_id = 413;
+
+    CREATE TABLE t1(a INTEGER PRIMARY KEY AUTOINCREMENT, b);
+    CREATE INDEX i1 ON t1(b);
+    INSERT INTO t1 VALUES(NULL, 'one');
+    INSERT INTO t1 VALUES(NULL, 'two');
+    INSERT INTO t1 VALUES(NULL, 'three');
+    INSERT INTO t1 VALUES(NULL, 'four');
+    INSERT INTO t1 VALUES(NULL, 'five');
+    INSERT INTO t1 VALUES(NULL, 'six');
+
+    PRAGMA main.page_size;
+    PRAGMA main.auto_vacuum;
+    PRAGMA main.user_version;
+    PRAGMA main.application_id;
+  } {8192 2 412 413}
+
+  do_rbu_vacuum_test 1.9.1 $step
+  do_execsql_test 1.9.2 {
+    PRAGMA main.page_size;
+    PRAGMA main.auto_vacuum;
+    PRAGMA main.user_version;
+    PRAGMA main.application_id;
+  } {8192 2 412 413}
+
+  # Vacuum a database with a large sqlite_master table.
+  #
+  reset_db
+  do_test 1.10.1 {
+    for {set i 1} {$i < 50} {incr i} {
+      execsql "PRAGMA page_size = 1024"
+      execsql "CREATE TABLE t$i (a, b, c, PRIMARY KEY(a, b));"
+      execsql "
+        INSERT INTO t$i VALUES(1, 2, 3);
+        INSERT INTO t$i VALUES(4, 5, 6);
+      "
+    }
+  } {}
+  do_rbu_vacuum_test 1.10.2 $step
+
+  # Database with empty tables.
+  #
+  reset_db
+  do_execsql_test 1.11.1 {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+    CREATE TABLE t2(a INTEGER PRIMARY KEY, b);
+    CREATE TABLE t3(a INTEGER PRIMARY KEY, b);
+    CREATE TABLE t4(a INTEGER PRIMARY KEY, b);
+    INSERT INTO t4 VALUES(1, 2);
+  }
+  do_rbu_vacuum_test 1.11.2 $step
+  do_execsql_test 1.11.3 {
+    SELECT * FROM t1;
+    SELECT * FROM t2;
+    SELECT * FROM t3;
+    SELECT * FROM t4;
+  } {1 2}
+  reset_db
+  do_execsql_test 1.12.1 {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+    CREATE TABLE t2(a INTEGER PRIMARY KEY, b);
+    CREATE TABLE t3(a INTEGER PRIMARY KEY, b);
+    CREATE TABLE t4(a INTEGER PRIMARY KEY, b);
+    INSERT INTO t1 VALUES(1, 2);
+  }
+  do_rbu_vacuum_test 1.12.2 $step
+  do_execsql_test 1.12.3 {
+    SELECT * FROM t1;
+    SELECT * FROM t2;
+    SELECT * FROM t3;
+    SELECT * FROM t4;
+  } {1 2}
+}
+set ::testprefix rbuvacuum
+
+#-------------------------------------------------------------------------
+# Test some error cases:
+#
+#   2.1.* the db being vacuumed being in wal mode already.
+#   2.2.* database modified mid vacuum.
+#
+reset_db
+do_execsql_test 2.1.0 {
+  CREATE TABLE t1(a, b);
+  INSERT INTO t1 VALUES(1, 2);
+  INSERT INTO t1 VALUES(3, 4);
+  INSERT INTO t1 VALUES(5, 6);
+  INSERT INTO t1 VALUES(7, 8);
+  PRAGMA journal_mode = wal;
+  INSERT INTO t1 VALUES(9, 10);
+} wal
+do_test 2.1.1 {
+  sqlite3rbu_vacuum rbu test.db state.db
+  rbu step
+} {SQLITE_ERROR}
+do_test 2.1.2 {
+  list [catch { rbu close } msg] $msg
+} {1 {SQLITE_ERROR - cannot vacuum wal mode database}}
+
+do_test 2.1.3 {
+  sqlite3rbu_vacuum rbu test.db state.db
+  rbu step
+} {SQLITE_ERROR}
+do_test 2.1.4 {
+  list [catch { rbu close_no_error } msg] $msg
+} {1 SQLITE_ERROR}
+
+reset_db
+do_execsql_test 2.2.0 {
+  CREATE TABLE tx(a PRIMARY KEY, b BLOB);
+  INSERT INTO tx VALUES(1, randomblob(900));
+  INSERT INTO tx SELECT a+1, randomblob(900) FROM tx;
+  INSERT INTO tx SELECT a+2, randomblob(900) FROM tx;
+  INSERT INTO tx SELECT a+4, randomblob(900) FROM tx;
+  INSERT INTO tx SELECT a+8, randomblob(900) FROM tx;
+}
+db_save_and_close
+for {set i 1} 1 {incr i} {
+  db_restore_and_reopen
+
+  sqlite3rbu_vacuum rbu test.db state.db
+  for {set step 0} {$step<$i} {incr step} { rbu step }
+  rbu close
+  if {[file exists test.db-wal]} break
+
+  execsql { INSERT INTO tx VALUES(20, 20) }
+
+  do_test 2.2.$i.1 {
+    sqlite3rbu_vacuum rbu test.db state.db 
+    rbu step
+  } {SQLITE_BUSY}
+  do_test 2.2.$i.2 {
+    list [catch { rbu close } msg] $msg
+  } {1 {SQLITE_BUSY - database modified during rbu vacuum}}
+}
+
+#-------------------------------------------------------------------------
+# Test that a database that uses custom collation sequences can be RBU
+# vacuumed.
+#
+reset_db
+forcedelete state.db
+proc noop {args} {}
+proc length_cmp {x y} {
+  set n1 [string length $x]
+  set n2 [string length $y]
+  return [expr $n1 - $n2]
+}
+sqlite3_create_collation_v2 db length length_cmp noop
+
+do_execsql_test 3.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+  INSERT INTO t1 VALUES(1, 'i');
+  INSERT INTO t1 VALUES(2, 'iiii');
+  INSERT INTO t1 VALUES(3, 'ii');
+  INSERT INTO t1 VALUES(4, 'iii');
+  SELECT a FROM t1 ORDER BY b COLLATE length;
+} {1 3 4 2}
+do_execsql_test 3.1 {
+  CREATE INDEX i1 ON t1(b COLLATE length);
+}
+
+do_test 3.2 {
+  sqlite3rbu_vacuum rbu test.db state.db
+  while {[rbu step]=="SQLITE_OK"} {}
+  list [catch { rbu close } msg] $msg
+} {1 {SQLITE_ERROR - no such collation sequence: length}}
+
+do_test 3.3 {
+  sqlite3rbu_vacuum rbu test.db state.db
+  set db1 [rbu db 0]
+  sqlite3_create_collation_v2 $db1 length length_cmp noop
+  while {[rbu step]=="SQLITE_OK"} {}
+  list [catch { rbu close } msg] $msg
+} {1 {SQLITE_ERROR - no such collation sequence: length}}
+
+do_test 3.4 {
+  sqlite3rbu_vacuum rbu test.db state.db
+  set db1 [rbu db 1]
+  sqlite3_create_collation_v2 $db1 length length_cmp noop
+  while {[rbu step]=="SQLITE_OK"} {}
+  list [catch { rbu close } msg] $msg
+} {1 {SQLITE_ERROR - no such collation sequence: length}}
+
+do_test 3.5 {
+  sqlite3rbu_vacuum rbu test.db state.db
+  set db1 [rbu db 0]
+  set db2 [rbu db 1]
+
+  sqlite3_create_collation_v2 $db1 length length_cmp noop
+  sqlite3_create_collation_v2 $db2 length length_cmp noop
+
+  while {[rbu step]=="SQLITE_OK"} {}
+  list [catch { rbu close } msg] $msg
+} {0 SQLITE_DONE}
+
+catch { db close }
+finish_test
diff --git a/ext/rbu/rbuvacuum2.test b/ext/rbu/rbuvacuum2.test
new file mode 100644
index 0000000000000000000000000000000000000000..34ec26188ac076e7fa9a62e8e1e17e4ce05b097c
--- /dev/null
+++ b/ext/rbu/rbuvacuum2.test
@@ -0,0 +1,249 @@
+# 2016 June 1
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains tests for the RBU module. More specifically, it
+# contains tests to ensure that the sqlite3rbu_vacuum() API works as
+# expected.
+#
+
+source [file join [file dirname [info script]] rbu_common.tcl]
+if_no_rbu_support { finish_test ; return }
+
+foreach {step} {0 1} {
+foreach {ttt state} {
+  s state.db t test.db-vacuum n {}
+} {
+  set ::testprefix rbuvacuum2-$step$ttt
+  
+  #-------------------------------------------------------------------------
+  # Test that a database that contains fts3 tables can be vacuumed.
+  #
+  ifcapable fts3 {
+    reset_db
+    do_execsql_test 1.1 {
+      CREATE VIRTUAL TABLE t1 USING fts3(z, y);
+      INSERT INTO t1 VALUES('fix this issue', 'at some point');
+    }
+  
+    do_rbu_vacuum_test 1.2 $step $state
+  
+    do_execsql_test 1.3 {
+      SELECT * FROM t1;
+    } {{fix this issue} {at some point}}
+  
+    do_execsql_test 1.4 {
+      SELECT rowid FROM t1 WHERE t1 MATCH 'fix';
+    } {1}
+
+    do_execsql_test 1.5 {
+      INSERT INTO t1 VALUES('a b c', 'd e f');
+      INSERT INTO t1 VALUES('l h i', 'd e f');
+      DELETE FROM t1 WHERE docid = 2;
+      INSERT INTO t1 VALUES('a b c', 'x y z');
+    }
+
+    do_rbu_vacuum_test 1.6 $step $state
+    do_execsql_test 1.7 {
+      INSERT INTO t1(t1) VALUES('integrity-check');
+      SELECT * FROM t1;
+    } {
+      {fix this issue} {at some point}
+      {l h i} {d e f}
+      {a b c} {x y z}
+    }
+  }
+  
+  #-------------------------------------------------------------------------
+  # Test that a database that contains fts5 tables can be vacuumed.
+  #
+  ifcapable fts5 {
+    reset_db
+    do_execsql_test 2.1 {
+      CREATE VIRTUAL TABLE t1 USING fts5(z, y);
+      INSERT INTO t1 VALUES('fix this issue', 'at some point');
+    }
+  
+    do_rbu_vacuum_test 2.2 $step $state
+  
+    do_execsql_test 2.3 {
+      SELECT * FROM t1;
+    } {{fix this issue} {at some point}}
+  
+    do_execsql_test 2.4 {
+      SELECT rowid FROM t1 ('fix');
+    } {1}
+
+    do_execsql_test 2.5 {
+      INSERT INTO t1 VALUES('a b c', 'd e f');
+      INSERT INTO t1 VALUES('l h i', 'd e f');
+      DELETE FROM t1 WHERE rowid = 2;
+      INSERT INTO t1 VALUES('a b c', 'x y z');
+    }
+
+    do_rbu_vacuum_test 2.6 $step $state
+    do_execsql_test 2.7 {
+      INSERT INTO t1(t1) VALUES('integrity-check');
+      SELECT * FROM t1;
+    } {
+      {fix this issue} {at some point}
+      {l h i} {d e f}
+      {a b c} {x y z}
+    }
+  }
+
+  #-------------------------------------------------------------------------
+  # Test that a database that contains an rtree table can be vacuumed.
+  #
+  ifcapable rtree {
+    reset_db
+    do_execsql_test 3.1 {
+      CREATE VIRTUAL TABLE rt USING rtree(id, x1, x2);
+      INSERT INTO rt VALUES(1, 45, 55);
+      INSERT INTO rt VALUES(2, 50, 60);
+      INSERT INTO rt VALUES(3, 55, 65);
+    }
+  
+    do_rbu_vacuum_test 3.2 $step $state
+  
+    do_execsql_test 3.3 {
+      SELECT * FROM rt;
+    } {1 45.0 55.0 2 50.0 60.0 3 55.0 65.0}
+  
+    do_execsql_test 3.4.1 {
+      SELECT rowid FROM rt WHERE x2>51 AND x1 < 51
+    } {1 2}
+    do_execsql_test 3.4.2 {
+      SELECT rowid FROM rt WHERE x2>59 AND x1 < 59
+    } {2 3}
+
+    do_rbu_vacuum_test 3.5 $step $state
+
+    do_execsql_test 3.6.1 {
+      SELECT rowid FROM rt WHERE x2>51 AND x1 < 51
+    } {1 2}
+    do_execsql_test 3.6.2 {
+      SELECT rowid FROM rt WHERE x2>59 AND x1 < 59
+    } {2 3}
+  }
+
+  ifcapable trigger {
+    reset_db
+    do_execsql_test 4.1 {
+      CREATE TABLE t1(a, b, c);
+      INSERT INTO t1 VALUES(1, 2, 3);
+      CREATE VIEW v1 AS SELECT * FROM t1;
+      CREATE TRIGGER tr1 AFTER INSERT ON t1 BEGIN SELECT 1; END;
+    }
+
+    do_execsql_test 4.2 {
+      SELECT * FROM sqlite_master;
+    } {
+    table t1 t1 2 {CREATE TABLE t1(a, b, c)}
+    view v1 v1 0 {CREATE VIEW v1 AS SELECT * FROM t1}
+    trigger tr1 t1 0 {CREATE TRIGGER tr1 AFTER INSERT ON t1 BEGIN SELECT 1; END}
+    }
+
+    do_rbu_vacuum_test 4.3 $step $state
+    do_execsql_test 4.4 {
+      SELECT * FROM sqlite_master;
+    } {
+    table t1 t1 2 {CREATE TABLE t1(a, b, c)}
+    view v1 v1 0 {CREATE VIEW v1 AS SELECT * FROM t1}
+    trigger tr1 t1 0 {CREATE TRIGGER tr1 AFTER INSERT ON t1 BEGIN SELECT 1; END}
+    }
+  }
+}
+}
+  
+#-------------------------------------------------------------------------
+# Test that passing a NULL value as the second argument to 
+# sqlite3rbu_vacuum() causes it to:
+#
+#   * Use <database>-vacuum as the state db, and
+#   * Set the state db permissions to the same as those on the db file.
+#
+db close
+if {$::tcl_platform(platform)=="unix"} {
+  forcedelete test.db
+
+  sqlite3 db test.db
+  do_execsql_test 5.0 {
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, 2);
+    INSERT INTO t1 VALUES(3, 4);
+    INSERT INTO t1 VALUES(5, 6);
+    INSERT INTO t1 VALUES(7, 8);
+  }
+  db close
+
+  foreach {tn perm} {
+    1 00755
+    2 00666
+    3 00644
+    4 00444
+  } {
+    forcedelete test.db-vacuum
+
+    do_test 5.$tn.1 {
+      file attributes test.db -permissions $perm
+      sqlite3rbu_vacuum rbu test.db
+      rbu step
+    } {SQLITE_OK}
+
+    do_test 5.$tn.2 { file exists test.db-vacuum } 1
+    # The result pattern might be 00xxx or 0oxxx depending on which
+    # version of TCL is being used.  So make perm2 into a regexp that
+    # will match either
+    regsub {^00} $perm {0.} perm2
+    do_test 5.$tn.3 { file attributes test.db-vacuum -permissions} /$perm2/
+    rbu close
+  }
+}
+
+#-------------------------------------------------------------------------
+# Test the outcome of some other connection running a checkpoint while
+# the incremental checkpoint is suspended.
+#
+reset_db
+do_execsql_test 6.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+  CREATE INDEX i1b ON t1(b);
+  CREATE INDEX i1c ON t1(c);
+  INSERT INTO t1 VALUES(1, 2, 3);
+  INSERT INTO t1 VALUES(4, 5, 6);
+}
+forcedelete test.db2
+
+do_test 6.1 {
+  sqlite3rbu_vacuum rbu test.db test.db2
+  while {[rbu state]!="checkpoint"} { rbu step }
+  rbu close
+} {SQLITE_OK}
+
+do_test 6.2 {
+  execsql { SELECT 1 FROM sqlite_master LIMIT 1 }
+  execsql { PRAGMA wal_checkpoint }
+  execsql { SELECT 1 FROM sqlite_master LIMIT 1 }
+} {1}
+
+do_test 6.3 {
+  sqlite3rbu_vacuum rbu test.db test.db2
+  while {[rbu step]!="SQLITE_DONE"} { rbu step }
+  rbu close
+  execsql { PRAGMA integrity_check }
+} {ok}
+
+do_test 6.4 {
+  sqlite3rbu_vacuum rbu test.db test.db-vactmp
+  list [catch { rbu close } msg] $msg
+} {1 SQLITE_MISUSE}
+
+finish_test
diff --git a/ext/rbu/rbuvacuum3.test b/ext/rbu/rbuvacuum3.test
new file mode 100644
index 0000000000000000000000000000000000000000..d70c094f2fff41e15130bf6431522d76426bf67d
--- /dev/null
+++ b/ext/rbu/rbuvacuum3.test
@@ -0,0 +1,64 @@
+# 2019 Jan 3
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains tests for the RBU module. More specifically, it
+# contains tests to ensure that the sqlite3rbu_vacuum() API works as
+# expected.
+#
+
+source [file join [file dirname [info script]] rbu_common.tcl]
+if_no_rbu_support { finish_test ; return }
+set testprefix rbuvacuum3
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a PRIMARY KEY, b, c);
+  CREATE INDEX i1b ON t1(b);
+  CREATE INDEX i1c ON t1(c);
+  
+  WITH s(i) AS (
+    VALUES(1) UNION ALL SELECT i+1 FROM s WHERE i<100
+  )
+  INSERT INTO t1 SELECT i, randomblob(100), randomblob(100) FROM s;
+}
+
+forcedelete state.db
+do_test 1.1 {
+  sqlite3rbu_vacuum rbu test.db state.db
+  while {1} {
+    set rc [rbu step]
+    if {$rc!="SQLITE_OK"} break
+    rbu savestate
+  }
+  rbu close
+} {SQLITE_DONE}
+
+do_test 1.2 {
+  sqlite3rbu_vacuum rbu test.db state.db
+  while {1} {
+    set rc [rbu step]
+    if {$rc!="SQLITE_OK"} break
+    rbu savestate
+  }
+  rbu close
+} {SQLITE_DONE}
+
+do_test 1.3 {
+  while {1} {
+    sqlite3rbu_vacuum rbu test.db state.db
+    set rc [rbu step]
+    if {$rc!="SQLITE_OK"} break
+    rbu savestate
+    rbu close
+  }
+  rbu close
+} {SQLITE_DONE}
+
+finish_test
diff --git a/ext/rbu/rbuvacuum4.test b/ext/rbu/rbuvacuum4.test
new file mode 100644
index 0000000000000000000000000000000000000000..7b0db974d3f9057a3f895fac8a226bfa73889a6d
--- /dev/null
+++ b/ext/rbu/rbuvacuum4.test
@@ -0,0 +1,118 @@
+# 2019 Jan 3
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains tests for the RBU module. More specifically, it
+# contains tests to ensure that the sqlite3rbu_vacuum() API works as
+# expected.
+#
+
+source [file join [file dirname [info script]] rbu_common.tcl]
+if_no_rbu_support { finish_test ; return }
+set testprefix rbuvacuum4
+
+set step 1
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a PRIMARY KEY, b, c) WITHOUT ROWID;
+  INSERT INTO t1 VALUES(1, 2, 3);
+  INSERT INTO t1 VALUES(4, 5, 6);
+  INSERT INTO t1 VALUES(7, 8, 9);
+}
+do_rbu_vacuum_test 1.1 1
+
+#-------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 2.0 {
+  CREATE TABLE t1(a, b, c, PRIMARY KEY(a, b, c)) WITHOUT ROWID;
+  INSERT INTO t1 VALUES(1, 2, 3);
+  INSERT INTO t1 VALUES(4, 5, 6);
+  INSERT INTO t1 VALUES(7, 8, 9);
+}
+do_rbu_vacuum_test 2.1 1
+do_execsql_test 2.2 {
+  SELECT * FROM t1;
+} {1 2 3 4 5 6 7 8 9}
+
+#-------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 3.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+  CREATE INDEX i1 oN t1(b, c);
+  INSERT INTO t1 VALUES(1, 2, 3);
+  INSERT INTO t1 VALUES(4, 5, 6);
+  INSERT INTO t1 VALUES(7, 8, 9);
+
+  CREATE TABLE t2(a, b, c INTEGER, PRIMARY KEY(c));
+  CREATE INDEX i2 oN t2(b, a);
+  INSERT INTO t2 VALUES('a', 'b', -1);
+  INSERT INTO t2 VALUES('c', 'd', -2);
+  INSERT INTO t2 VALUES('e', 'f', -3);
+}
+
+do_rbu_vacuum_test 3.1 1
+
+do_execsql_test 3.2 {
+  SELECT * FROM t1;
+  SELECT * FROM t2;
+} {1 2 3 4 5 6 7 8 9 e f -3 c d -2 a b -1}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 4.0 {
+  CREATE TABLE x1(a, b, c, d, PRIMARY KEY(c, b)) WITHOUT ROWID;
+  INSERT INTO x1 VALUES(1, 1, 1, 1);
+  INSERT INTO x1 VALUES(1, 1, 2, 1);
+  INSERT INTO x1 VALUES(1, 2, 2, 1);
+
+  INSERT INTO x1 VALUES(NULL, 2, 3, NULL);
+  INSERT INTO x1 VALUES(NULL, 2, 4, NULL);
+  INSERT INTO x1 VALUES(NULL, 2, 5, NULL);
+
+  CREATE INDEX x1ad ON x1(d, a);
+  CREATE INDEX x1null ON x1(d, a) WHERE d>15;
+}
+
+do_rbu_vacuum_test 4.1.1 1
+
+do_execsql_test 4.2 {
+  SELECT count(*) fROM x1
+} 6
+
+db cache flush
+do_rbu_vacuum_test 4.1.2 0
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 5.0 {
+  CREATE TABLE "a b c"(a, "b b" PRIMARY KEY, "c c");
+  CREATE INDEX abc1 ON "a b c"(a, "c c");
+
+  INSERT INTO "a b c" VALUES(NULL, 'a', NULL);
+  INSERT INTO "a b c" VALUES(NULL, 'b', NULL);
+  INSERT INTO "a b c" VALUES(NULL, 'c', NULL);
+
+  INSERT INTO "a b c" VALUES(1, 2, 3);
+  INSERT INTO "a b c" VALUES(3, 9, 1);
+  INSERT INTO "a b c" VALUES('aaa', 'bbb', 'ccc');
+
+  CREATE INDEX abc2 ON "a b c"("c c" DESC, a);
+
+  CREATE TABLE x(a);
+  INSERT INTO x VALUES('a'), ('b'), ('d');
+  CREATE UNIQUE INDEX y ON x(a);
+}
+
+do_rbu_vacuum_test 5.1 1
+
+finish_test
+
diff --git a/ext/rbu/sqlite3rbu.c b/ext/rbu/sqlite3rbu.c
new file mode 100644
index 0000000000000000000000000000000000000000..36688925d6bf1bb4f5f431a184dd0ff03a875c5d
--- /dev/null
+++ b/ext/rbu/sqlite3rbu.c
@@ -0,0 +1,5447 @@
+/*
+** 2014 August 30
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+**
+** OVERVIEW 
+**
+**  The RBU extension requires that the RBU update be packaged as an
+**  SQLite database. The tables it expects to find are described in
+**  sqlite3rbu.h.  Essentially, for each table xyz in the target database
+**  that the user wishes to write to, a corresponding data_xyz table is
+**  created in the RBU database and populated with one row for each row to
+**  update, insert or delete from the target table.
+** 
+**  The update proceeds in three stages:
+** 
+**  1) The database is updated. The modified database pages are written
+**     to a *-oal file. A *-oal file is just like a *-wal file, except
+**     that it is named "<database>-oal" instead of "<database>-wal".
+**     Because regular SQLite clients do not look for file named
+**     "<database>-oal", they go on using the original database in
+**     rollback mode while the *-oal file is being generated.
+** 
+**     During this stage RBU does not update the database by writing
+**     directly to the target tables. Instead it creates "imposter"
+**     tables using the SQLITE_TESTCTRL_IMPOSTER interface that it uses
+**     to update each b-tree individually. All updates required by each
+**     b-tree are completed before moving on to the next, and all
+**     updates are done in sorted key order.
+** 
+**  2) The "<database>-oal" file is moved to the equivalent "<database>-wal"
+**     location using a call to rename(2). Before doing this the RBU
+**     module takes an EXCLUSIVE lock on the database file, ensuring
+**     that there are no other active readers.
+** 
+**     Once the EXCLUSIVE lock is released, any other database readers
+**     detect the new *-wal file and read the database in wal mode. At
+**     this point they see the new version of the database - including
+**     the updates made as part of the RBU update.
+** 
+**  3) The new *-wal file is checkpointed. This proceeds in the same way 
+**     as a regular database checkpoint, except that a single frame is
+**     checkpointed each time sqlite3rbu_step() is called. If the RBU
+**     handle is closed before the entire *-wal file is checkpointed,
+**     the checkpoint progress is saved in the RBU database and the
+**     checkpoint can be resumed by another RBU client at some point in
+**     the future.
+**
+** POTENTIAL PROBLEMS
+** 
+**  The rename() call might not be portable. And RBU is not currently
+**  syncing the directory after renaming the file.
+**
+**  When state is saved, any commit to the *-oal file and the commit to
+**  the RBU update database are not atomic. So if the power fails at the
+**  wrong moment they might get out of sync. As the main database will be
+**  committed before the RBU update database this will likely either just
+**  pass unnoticed, or result in SQLITE_CONSTRAINT errors (due to UNIQUE
+**  constraint violations).
+**
+**  If some client does modify the target database mid RBU update, or some
+**  other error occurs, the RBU extension will keep throwing errors. It's
+**  not really clear how to get out of this state. The system could just
+**  by delete the RBU update database and *-oal file and have the device
+**  download the update again and start over.
+**
+**  At present, for an UPDATE, both the new.* and old.* records are
+**  collected in the rbu_xyz table. And for both UPDATEs and DELETEs all
+**  fields are collected.  This means we're probably writing a lot more
+**  data to disk when saving the state of an ongoing update to the RBU
+**  update database than is strictly necessary.
+** 
+*/
+
+#include <assert.h>
+#include <string.h>
+#include <stdio.h>
+
+#include "sqlite3.h"
+
+#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_RBU)
+#include "sqlite3rbu.h"
+
+#if defined(_WIN32_WCE)
+#include "windows.h"
+#endif
+
+/* Maximum number of prepared UPDATE statements held by this module */
+#define SQLITE_RBU_UPDATE_CACHESIZE 16
+
+/* Delta checksums disabled by default.  Compile with -DRBU_ENABLE_DELTA_CKSUM
+** to enable checksum verification.
+*/
+#ifndef RBU_ENABLE_DELTA_CKSUM
+# define RBU_ENABLE_DELTA_CKSUM 0
+#endif
+
+/*
+** Swap two objects of type TYPE.
+*/
+#if !defined(SQLITE_AMALGAMATION)
+# define SWAP(TYPE,A,B) {TYPE t=A; A=B; B=t;}
+#endif
+
+/*
+** Name of the URI option that causes RBU to take an exclusive lock as
+** part of the incremental checkpoint operation.
+*/
+#define RBU_EXCLUSIVE_CHECKPOINT "rbu_exclusive_checkpoint"
+
+
+/*
+** The rbu_state table is used to save the state of a partially applied
+** update so that it can be resumed later. The table consists of integer
+** keys mapped to values as follows:
+**
+** RBU_STATE_STAGE:
+**   May be set to integer values 1, 2, 4 or 5. As follows:
+**       1: the *-rbu file is currently under construction.
+**       2: the *-rbu file has been constructed, but not yet moved 
+**          to the *-wal path.
+**       4: the checkpoint is underway.
+**       5: the rbu update has been checkpointed.
+**
+** RBU_STATE_TBL:
+**   Only valid if STAGE==1. The target database name of the table 
+**   currently being written.
+**
+** RBU_STATE_IDX:
+**   Only valid if STAGE==1. The target database name of the index 
+**   currently being written, or NULL if the main table is currently being
+**   updated.
+**
+** RBU_STATE_ROW:
+**   Only valid if STAGE==1. Number of rows already processed for the current
+**   table/index.
+**
+** RBU_STATE_PROGRESS:
+**   Trbul number of sqlite3rbu_step() calls made so far as part of this
+**   rbu update.
+**
+** RBU_STATE_CKPT:
+**   Valid if STAGE==4. The 64-bit checksum associated with the wal-index
+**   header created by recovering the *-wal file. This is used to detect
+**   cases when another client appends frames to the *-wal file in the
+**   middle of an incremental checkpoint (an incremental checkpoint cannot
+**   be continued if this happens).
+**
+** RBU_STATE_COOKIE:
+**   Valid if STAGE==1. The current change-counter cookie value in the 
+**   target db file.
+**
+** RBU_STATE_OALSZ:
+**   Valid if STAGE==1. The size in bytes of the *-oal file.
+**
+** RBU_STATE_DATATBL:
+**   Only valid if STAGE==1. The RBU database name of the table 
+**   currently being read.
+*/
+#define RBU_STATE_STAGE        1
+#define RBU_STATE_TBL          2
+#define RBU_STATE_IDX          3
+#define RBU_STATE_ROW          4
+#define RBU_STATE_PROGRESS     5
+#define RBU_STATE_CKPT         6
+#define RBU_STATE_COOKIE       7
+#define RBU_STATE_OALSZ        8
+#define RBU_STATE_PHASEONESTEP 9
+#define RBU_STATE_DATATBL     10
+
+#define RBU_STAGE_OAL         1
+#define RBU_STAGE_MOVE        2
+#define RBU_STAGE_CAPTURE     3
+#define RBU_STAGE_CKPT        4
+#define RBU_STAGE_DONE        5
+
+
+#define RBU_CREATE_STATE \
+  "CREATE TABLE IF NOT EXISTS %s.rbu_state(k INTEGER PRIMARY KEY, v)"
+
+typedef struct RbuFrame RbuFrame;
+typedef struct RbuObjIter RbuObjIter;
+typedef struct RbuState RbuState;
+typedef struct RbuSpan RbuSpan;
+typedef struct rbu_vfs rbu_vfs;
+typedef struct rbu_file rbu_file;
+typedef struct RbuUpdateStmt RbuUpdateStmt;
+
+#if !defined(SQLITE_AMALGAMATION)
+typedef unsigned int u32;
+typedef unsigned short u16;
+typedef unsigned char u8;
+typedef sqlite3_int64 i64;
+typedef sqlite3_uint64 u64;
+#endif
+
+/*
+** These values must match the values defined in wal.c for the equivalent
+** locks. These are not magic numbers as they are part of the SQLite file
+** format.
+*/
+#define WAL_LOCK_WRITE  0
+#define WAL_LOCK_CKPT   1
+#define WAL_LOCK_READ0  3
+
+#define SQLITE_FCNTL_RBUCNT    5149216
+
+/*
+** A structure to store values read from the rbu_state table in memory.
+*/
+struct RbuState {
+  int eStage;
+  char *zTbl;
+  char *zDataTbl;
+  char *zIdx;
+  i64 iWalCksum;
+  int nRow;
+  i64 nProgress;
+  u32 iCookie;
+  i64 iOalSz;
+  i64 nPhaseOneStep;
+};
+
+struct RbuUpdateStmt {
+  char *zMask;                    /* Copy of update mask used with pUpdate */
+  sqlite3_stmt *pUpdate;          /* Last update statement (or NULL) */
+  RbuUpdateStmt *pNext;
+};
+
+struct RbuSpan {
+  const char *zSpan;
+  int nSpan;
+};
+
+/*
+** An iterator of this type is used to iterate through all objects in
+** the target database that require updating. For each such table, the
+** iterator visits, in order:
+**
+**     * the table itself, 
+**     * each index of the table (zero or more points to visit), and
+**     * a special "cleanup table" state.
+**
+** abIndexed:
+**   If the table has no indexes on it, abIndexed is set to NULL. Otherwise,
+**   it points to an array of flags nTblCol elements in size. The flag is
+**   set for each column that is either a part of the PK or a part of an
+**   index. Or clear otherwise.
+**
+**   If there are one or more partial indexes on the table, all fields of
+**   this array set set to 1. This is because in that case, the module has
+**   no way to tell which fields will be required to add and remove entries
+**   from the partial indexes.
+**   
+*/
+struct RbuObjIter {
+  sqlite3_stmt *pTblIter;         /* Iterate through tables */
+  sqlite3_stmt *pIdxIter;         /* Index iterator */
+  int nTblCol;                    /* Size of azTblCol[] array */
+  char **azTblCol;                /* Array of unquoted target column names */
+  char **azTblType;               /* Array of target column types */
+  int *aiSrcOrder;                /* src table col -> target table col */
+  u8 *abTblPk;                    /* Array of flags, set on target PK columns */
+  u8 *abNotNull;                  /* Array of flags, set on NOT NULL columns */
+  u8 *abIndexed;                  /* Array of flags, set on indexed & PK cols */
+  int eType;                      /* Table type - an RBU_PK_XXX value */
+
+  /* Output variables. zTbl==0 implies EOF. */
+  int bCleanup;                   /* True in "cleanup" state */
+  const char *zTbl;               /* Name of target db table */
+  const char *zDataTbl;           /* Name of rbu db table (or null) */
+  const char *zIdx;               /* Name of target db index (or null) */
+  int iTnum;                      /* Root page of current object */
+  int iPkTnum;                    /* If eType==EXTERNAL, root of PK index */
+  int bUnique;                    /* Current index is unique */
+  int nIndex;                     /* Number of aux. indexes on table zTbl */
+
+  /* Statements created by rbuObjIterPrepareAll() */
+  int nCol;                       /* Number of columns in current object */
+  sqlite3_stmt *pSelect;          /* Source data */
+  sqlite3_stmt *pInsert;          /* Statement for INSERT operations */
+  sqlite3_stmt *pDelete;          /* Statement for DELETE ops */
+  sqlite3_stmt *pTmpInsert;       /* Insert into rbu_tmp_$zDataTbl */
+  int nIdxCol;
+  RbuSpan *aIdxCol;
+  char *zIdxSql;
+
+  /* Last UPDATE used (for PK b-tree updates only), or NULL. */
+  RbuUpdateStmt *pRbuUpdate;
+};
+
+/*
+** Values for RbuObjIter.eType
+**
+**     0: Table does not exist (error)
+**     1: Table has an implicit rowid.
+**     2: Table has an explicit IPK column.
+**     3: Table has an external PK index.
+**     4: Table is WITHOUT ROWID.
+**     5: Table is a virtual table.
+*/
+#define RBU_PK_NOTABLE        0
+#define RBU_PK_NONE           1
+#define RBU_PK_IPK            2
+#define RBU_PK_EXTERNAL       3
+#define RBU_PK_WITHOUT_ROWID  4
+#define RBU_PK_VTAB           5
+
+
+/*
+** Within the RBU_STAGE_OAL stage, each call to sqlite3rbu_step() performs
+** one of the following operations.
+*/
+#define RBU_INSERT     1          /* Insert on a main table b-tree */
+#define RBU_DELETE     2          /* Delete a row from a main table b-tree */
+#define RBU_REPLACE    3          /* Delete and then insert a row */
+#define RBU_IDX_DELETE 4          /* Delete a row from an aux. index b-tree */
+#define RBU_IDX_INSERT 5          /* Insert on an aux. index b-tree */
+
+#define RBU_UPDATE     6          /* Update a row in a main table b-tree */
+
+/*
+** A single step of an incremental checkpoint - frame iWalFrame of the wal
+** file should be copied to page iDbPage of the database file.
+*/
+struct RbuFrame {
+  u32 iDbPage;
+  u32 iWalFrame;
+};
+
+#ifndef UNUSED_PARAMETER
+/*
+** The following macros are used to suppress compiler warnings and to
+** make it clear to human readers when a function parameter is deliberately
+** left unused within the body of a function. This usually happens when
+** a function is called via a function pointer. For example the
+** implementation of an SQL aggregate step callback may not use the
+** parameter indicating the number of arguments passed to the aggregate,
+** if it knows that this is enforced elsewhere.
+**
+** When a function parameter is not used at all within the body of a function,
+** it is generally named "NotUsed" or "NotUsed2" to make things even clearer.
+** However, these macros may also be used to suppress warnings related to
+** parameters that may or may not be used depending on compilation options.
+** For example those parameters only used in assert() statements. In these
+** cases the parameters are named as per the usual conventions.
+*/
+#define UNUSED_PARAMETER(x) (void)(x)
+#define UNUSED_PARAMETER2(x,y) UNUSED_PARAMETER(x),UNUSED_PARAMETER(y)
+#endif
+
+/*
+** RBU handle.
+**
+** nPhaseOneStep:
+**   If the RBU database contains an rbu_count table, this value is set to
+**   a running estimate of the number of b-tree operations required to 
+**   finish populating the *-oal file. This allows the sqlite3_bp_progress()
+**   API to calculate the permyriadage progress of populating the *-oal file
+**   using the formula:
+**
+**     permyriadage = (10000 * nProgress) / nPhaseOneStep
+**
+**   nPhaseOneStep is initialized to the sum of:
+**
+**     nRow * (nIndex + 1)
+**
+**   for all source tables in the RBU database, where nRow is the number
+**   of rows in the source table and nIndex the number of indexes on the
+**   corresponding target database table.
+**
+**   This estimate is accurate if the RBU update consists entirely of
+**   INSERT operations. However, it is inaccurate if:
+**
+**     * the RBU update contains any UPDATE operations. If the PK specified
+**       for an UPDATE operation does not exist in the target table, then
+**       no b-tree operations are required on index b-trees. Or if the 
+**       specified PK does exist, then (nIndex*2) such operations are
+**       required (one delete and one insert on each index b-tree).
+**
+**     * the RBU update contains any DELETE operations for which the specified
+**       PK does not exist. In this case no operations are required on index
+**       b-trees.
+**
+**     * the RBU update contains REPLACE operations. These are similar to
+**       UPDATE operations.
+**
+**   nPhaseOneStep is updated to account for the conditions above during the
+**   first pass of each source table. The updated nPhaseOneStep value is
+**   stored in the rbu_state table if the RBU update is suspended.
+*/
+struct sqlite3rbu {
+  int eStage;                     /* Value of RBU_STATE_STAGE field */
+  sqlite3 *dbMain;                /* target database handle */
+  sqlite3 *dbRbu;                 /* rbu database handle */
+  char *zTarget;                  /* Path to target db */
+  char *zRbu;                     /* Path to rbu db */
+  char *zState;                   /* Path to state db (or NULL if zRbu) */
+  char zStateDb[5];               /* Db name for state ("stat" or "main") */
+  int rc;                         /* Value returned by last rbu_step() call */
+  char *zErrmsg;                  /* Error message if rc!=SQLITE_OK */
+  int nStep;                      /* Rows processed for current object */
+  sqlite3_int64 nProgress;        /* Rows processed for all objects */
+  RbuObjIter objiter;             /* Iterator for skipping through tbl/idx */
+  const char *zVfsName;           /* Name of automatically created rbu vfs */
+  rbu_file *pTargetFd;            /* File handle open on target db */
+  int nPagePerSector;             /* Pages per sector for pTargetFd */
+  i64 iOalSz;
+  i64 nPhaseOneStep;
+  void *pRenameArg;
+  int (*xRename)(void*, const char*, const char*);
+
+  /* The following state variables are used as part of the incremental
+  ** checkpoint stage (eStage==RBU_STAGE_CKPT). See comments surrounding
+  ** function rbuSetupCheckpoint() for details.  */
+  u32 iMaxFrame;                  /* Largest iWalFrame value in aFrame[] */
+  u32 mLock;
+  int nFrame;                     /* Entries in aFrame[] array */
+  int nFrameAlloc;                /* Allocated size of aFrame[] array */
+  RbuFrame *aFrame;
+  int pgsz;
+  u8 *aBuf;
+  i64 iWalCksum;
+  i64 szTemp;                     /* Current size of all temp files in use */
+  i64 szTempLimit;                /* Total size limit for temp files */
+
+  /* Used in RBU vacuum mode only */
+  int nRbu;                       /* Number of RBU VFS in the stack */
+  rbu_file *pRbuFd;               /* Fd for main db of dbRbu */
+};
+
+/*
+** An rbu VFS is implemented using an instance of this structure.
+**
+** Variable pRbu is only non-NULL for automatically created RBU VFS objects.
+** It is NULL for RBU VFS objects created explicitly using
+** sqlite3rbu_create_vfs(). It is used to track the total amount of temp
+** space used by the RBU handle.
+*/
+struct rbu_vfs {
+  sqlite3_vfs base;               /* rbu VFS shim methods */
+  sqlite3_vfs *pRealVfs;          /* Underlying VFS */
+  sqlite3_mutex *mutex;           /* Mutex to protect pMain */
+  sqlite3rbu *pRbu;               /* Owner RBU object */
+  rbu_file *pMain;                /* List of main db files */
+  rbu_file *pMainRbu;             /* List of main db files with pRbu!=0 */
+};
+
+/*
+** Each file opened by an rbu VFS is represented by an instance of
+** the following structure.
+**
+** If this is a temporary file (pRbu!=0 && flags&DELETE_ON_CLOSE), variable
+** "sz" is set to the current size of the database file.
+*/
+struct rbu_file {
+  sqlite3_file base;              /* sqlite3_file methods */
+  sqlite3_file *pReal;            /* Underlying file handle */
+  rbu_vfs *pRbuVfs;               /* Pointer to the rbu_vfs object */
+  sqlite3rbu *pRbu;               /* Pointer to rbu object (rbu target only) */
+  i64 sz;                         /* Size of file in bytes (temp only) */
+
+  int openFlags;                  /* Flags this file was opened with */
+  u32 iCookie;                    /* Cookie value for main db files */
+  u8 iWriteVer;                   /* "write-version" value for main db files */
+  u8 bNolock;                     /* True to fail EXCLUSIVE locks */
+
+  int nShm;                       /* Number of entries in apShm[] array */
+  char **apShm;                   /* Array of mmap'd *-shm regions */
+  char *zDel;                     /* Delete this when closing file */
+
+  const char *zWal;               /* Wal filename for this main db file */
+  rbu_file *pWalFd;               /* Wal file descriptor for this main db */
+  rbu_file *pMainNext;            /* Next MAIN_DB file */
+  rbu_file *pMainRbuNext;         /* Next MAIN_DB file with pRbu!=0 */
+};
+
+/*
+** True for an RBU vacuum handle, or false otherwise.
+*/
+#define rbuIsVacuum(p) ((p)->zTarget==0)
+
+
+/*************************************************************************
+** The following three functions, found below:
+**
+**   rbuDeltaGetInt()
+**   rbuDeltaChecksum()
+**   rbuDeltaApply()
+**
+** are lifted from the fossil source code (http://fossil-scm.org). They
+** are used to implement the scalar SQL function rbu_fossil_delta().
+*/
+
+/*
+** Read bytes from *pz and convert them into a positive integer.  When
+** finished, leave *pz pointing to the first character past the end of
+** the integer.  The *pLen parameter holds the length of the string
+** in *pz and is decremented once for each character in the integer.
+*/
+static unsigned int rbuDeltaGetInt(const char **pz, int *pLen){
+  static const signed char zValue[] = {
+    -1, -1, -1, -1, -1, -1, -1, -1,   -1, -1, -1, -1, -1, -1, -1, -1,
+    -1, -1, -1, -1, -1, -1, -1, -1,   -1, -1, -1, -1, -1, -1, -1, -1,
+    -1, -1, -1, -1, -1, -1, -1, -1,   -1, -1, -1, -1, -1, -1, -1, -1,
+     0,  1,  2,  3,  4,  5,  6,  7,    8,  9, -1, -1, -1, -1, -1, -1,
+    -1, 10, 11, 12, 13, 14, 15, 16,   17, 18, 19, 20, 21, 22, 23, 24,
+    25, 26, 27, 28, 29, 30, 31, 32,   33, 34, 35, -1, -1, -1, -1, 36,
+    -1, 37, 38, 39, 40, 41, 42, 43,   44, 45, 46, 47, 48, 49, 50, 51,
+    52, 53, 54, 55, 56, 57, 58, 59,   60, 61, 62, -1, -1, -1, 63, -1,
+  };
+  unsigned int v = 0;
+  int c;
+  unsigned char *z = (unsigned char*)*pz;
+  unsigned char *zStart = z;
+  while( (c = zValue[0x7f&*(z++)])>=0 ){
+     v = (v<<6) + c;
+  }
+  z--;
+  *pLen -= (int)(z - zStart);
+  *pz = (char*)z;
+  return v;
+}
+
+#if RBU_ENABLE_DELTA_CKSUM
+/*
+** Compute a 32-bit checksum on the N-byte buffer.  Return the result.
+*/
+static unsigned int rbuDeltaChecksum(const char *zIn, size_t N){
+  const unsigned char *z = (const unsigned char *)zIn;
+  unsigned sum0 = 0;
+  unsigned sum1 = 0;
+  unsigned sum2 = 0;
+  unsigned sum3 = 0;
+  while(N >= 16){
+    sum0 += ((unsigned)z[0] + z[4] + z[8] + z[12]);
+    sum1 += ((unsigned)z[1] + z[5] + z[9] + z[13]);
+    sum2 += ((unsigned)z[2] + z[6] + z[10]+ z[14]);
+    sum3 += ((unsigned)z[3] + z[7] + z[11]+ z[15]);
+    z += 16;
+    N -= 16;
+  }
+  while(N >= 4){
+    sum0 += z[0];
+    sum1 += z[1];
+    sum2 += z[2];
+    sum3 += z[3];
+    z += 4;
+    N -= 4;
+  }
+  sum3 += (sum2 << 8) + (sum1 << 16) + (sum0 << 24);
+  switch(N){
+    case 3:   sum3 += (z[2] << 8);
+    case 2:   sum3 += (z[1] << 16);
+    case 1:   sum3 += (z[0] << 24);
+    default:  ;
+  }
+  return sum3;
+}
+#endif
+
+/*
+** Apply a delta.
+**
+** The output buffer should be big enough to hold the whole output
+** file and a NUL terminator at the end.  The delta_output_size()
+** routine will determine this size for you.
+**
+** The delta string should be null-terminated.  But the delta string
+** may contain embedded NUL characters (if the input and output are
+** binary files) so we also have to pass in the length of the delta in
+** the lenDelta parameter.
+**
+** This function returns the size of the output file in bytes (excluding
+** the final NUL terminator character).  Except, if the delta string is
+** malformed or intended for use with a source file other than zSrc,
+** then this routine returns -1.
+**
+** Refer to the delta_create() documentation above for a description
+** of the delta file format.
+*/
+static int rbuDeltaApply(
+  const char *zSrc,      /* The source or pattern file */
+  int lenSrc,            /* Length of the source file */
+  const char *zDelta,    /* Delta to apply to the pattern */
+  int lenDelta,          /* Length of the delta */
+  char *zOut             /* Write the output into this preallocated buffer */
+){
+  unsigned int limit;
+  unsigned int total = 0;
+#if RBU_ENABLE_DELTA_CKSUM
+  char *zOrigOut = zOut;
+#endif
+
+  limit = rbuDeltaGetInt(&zDelta, &lenDelta);
+  if( *zDelta!='\n' ){
+    /* ERROR: size integer not terminated by "\n" */
+    return -1;
+  }
+  zDelta++; lenDelta--;
+  while( *zDelta && lenDelta>0 ){
+    unsigned int cnt, ofst;
+    cnt = rbuDeltaGetInt(&zDelta, &lenDelta);
+    switch( zDelta[0] ){
+      case '@': {
+        zDelta++; lenDelta--;
+        ofst = rbuDeltaGetInt(&zDelta, &lenDelta);
+        if( lenDelta>0 && zDelta[0]!=',' ){
+          /* ERROR: copy command not terminated by ',' */
+          return -1;
+        }
+        zDelta++; lenDelta--;
+        total += cnt;
+        if( total>limit ){
+          /* ERROR: copy exceeds output file size */
+          return -1;
+        }
+        if( (int)(ofst+cnt) > lenSrc ){
+          /* ERROR: copy extends past end of input */
+          return -1;
+        }
+        memcpy(zOut, &zSrc[ofst], cnt);
+        zOut += cnt;
+        break;
+      }
+      case ':': {
+        zDelta++; lenDelta--;
+        total += cnt;
+        if( total>limit ){
+          /* ERROR:  insert command gives an output larger than predicted */
+          return -1;
+        }
+        if( (int)cnt>lenDelta ){
+          /* ERROR: insert count exceeds size of delta */
+          return -1;
+        }
+        memcpy(zOut, zDelta, cnt);
+        zOut += cnt;
+        zDelta += cnt;
+        lenDelta -= cnt;
+        break;
+      }
+      case ';': {
+        zDelta++; lenDelta--;
+        zOut[0] = 0;
+#if RBU_ENABLE_DELTA_CKSUM
+        if( cnt!=rbuDeltaChecksum(zOrigOut, total) ){
+          /* ERROR:  bad checksum */
+          return -1;
+        }
+#endif
+        if( total!=limit ){
+          /* ERROR: generated size does not match predicted size */
+          return -1;
+        }
+        return total;
+      }
+      default: {
+        /* ERROR: unknown delta operator */
+        return -1;
+      }
+    }
+  }
+  /* ERROR: unterminated delta */
+  return -1;
+}
+
+static int rbuDeltaOutputSize(const char *zDelta, int lenDelta){
+  int size;
+  size = rbuDeltaGetInt(&zDelta, &lenDelta);
+  if( *zDelta!='\n' ){
+    /* ERROR: size integer not terminated by "\n" */
+    return -1;
+  }
+  return size;
+}
+
+/*
+** End of code taken from fossil.
+*************************************************************************/
+
+/*
+** Implementation of SQL scalar function rbu_fossil_delta().
+**
+** This function applies a fossil delta patch to a blob. Exactly two
+** arguments must be passed to this function. The first is the blob to
+** patch and the second the patch to apply. If no error occurs, this
+** function returns the patched blob.
+*/
+static void rbuFossilDeltaFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  const char *aDelta;
+  int nDelta;
+  const char *aOrig;
+  int nOrig;
+
+  int nOut;
+  int nOut2;
+  char *aOut;
+
+  assert( argc==2 );
+  UNUSED_PARAMETER(argc);
+
+  nOrig = sqlite3_value_bytes(argv[0]);
+  aOrig = (const char*)sqlite3_value_blob(argv[0]);
+  nDelta = sqlite3_value_bytes(argv[1]);
+  aDelta = (const char*)sqlite3_value_blob(argv[1]);
+
+  /* Figure out the size of the output */
+  nOut = rbuDeltaOutputSize(aDelta, nDelta);
+  if( nOut<0 ){
+    sqlite3_result_error(context, "corrupt fossil delta", -1);
+    return;
+  }
+
+  aOut = sqlite3_malloc(nOut+1);
+  if( aOut==0 ){
+    sqlite3_result_error_nomem(context);
+  }else{
+    nOut2 = rbuDeltaApply(aOrig, nOrig, aDelta, nDelta, aOut);
+    if( nOut2!=nOut ){
+      sqlite3_free(aOut);
+      sqlite3_result_error(context, "corrupt fossil delta", -1);
+    }else{
+      sqlite3_result_blob(context, aOut, nOut, sqlite3_free);
+    }
+  }
+}
+
+
+/*
+** Prepare the SQL statement in buffer zSql against database handle db.
+** If successful, set *ppStmt to point to the new statement and return
+** SQLITE_OK. 
+**
+** Otherwise, if an error does occur, set *ppStmt to NULL and return
+** an SQLite error code. Additionally, set output variable *pzErrmsg to
+** point to a buffer containing an error message. It is the responsibility
+** of the caller to (eventually) free this buffer using sqlite3_free().
+*/
+static int prepareAndCollectError(
+  sqlite3 *db, 
+  sqlite3_stmt **ppStmt,
+  char **pzErrmsg,
+  const char *zSql
+){
+  int rc = sqlite3_prepare_v2(db, zSql, -1, ppStmt, 0);
+  if( rc!=SQLITE_OK ){
+    *pzErrmsg = sqlite3_mprintf("%s", sqlite3_errmsg(db));
+    *ppStmt = 0;
+  }
+  return rc;
+}
+
+/*
+** Reset the SQL statement passed as the first argument. Return a copy
+** of the value returned by sqlite3_reset().
+**
+** If an error has occurred, then set *pzErrmsg to point to a buffer
+** containing an error message. It is the responsibility of the caller
+** to eventually free this buffer using sqlite3_free().
+*/
+static int resetAndCollectError(sqlite3_stmt *pStmt, char **pzErrmsg){
+  int rc = sqlite3_reset(pStmt);
+  if( rc!=SQLITE_OK ){
+    *pzErrmsg = sqlite3_mprintf("%s", sqlite3_errmsg(sqlite3_db_handle(pStmt)));
+  }
+  return rc;
+}
+
+/*
+** Unless it is NULL, argument zSql points to a buffer allocated using
+** sqlite3_malloc containing an SQL statement. This function prepares the SQL
+** statement against database db and frees the buffer. If statement 
+** compilation is successful, *ppStmt is set to point to the new statement 
+** handle and SQLITE_OK is returned. 
+**
+** Otherwise, if an error occurs, *ppStmt is set to NULL and an error code
+** returned. In this case, *pzErrmsg may also be set to point to an error
+** message. It is the responsibility of the caller to free this error message
+** buffer using sqlite3_free().
+**
+** If argument zSql is NULL, this function assumes that an OOM has occurred.
+** In this case SQLITE_NOMEM is returned and *ppStmt set to NULL.
+*/
+static int prepareFreeAndCollectError(
+  sqlite3 *db, 
+  sqlite3_stmt **ppStmt,
+  char **pzErrmsg,
+  char *zSql
+){
+  int rc;
+  assert( *pzErrmsg==0 );
+  if( zSql==0 ){
+    rc = SQLITE_NOMEM;
+    *ppStmt = 0;
+  }else{
+    rc = prepareAndCollectError(db, ppStmt, pzErrmsg, zSql);
+    sqlite3_free(zSql);
+  }
+  return rc;
+}
+
+/*
+** Free the RbuObjIter.azTblCol[] and RbuObjIter.abTblPk[] arrays allocated
+** by an earlier call to rbuObjIterCacheTableInfo().
+*/
+static void rbuObjIterFreeCols(RbuObjIter *pIter){
+  int i;
+  for(i=0; i<pIter->nTblCol; i++){
+    sqlite3_free(pIter->azTblCol[i]);
+    sqlite3_free(pIter->azTblType[i]);
+  }
+  sqlite3_free(pIter->azTblCol);
+  pIter->azTblCol = 0;
+  pIter->azTblType = 0;
+  pIter->aiSrcOrder = 0;
+  pIter->abTblPk = 0;
+  pIter->abNotNull = 0;
+  pIter->nTblCol = 0;
+  pIter->eType = 0;               /* Invalid value */
+}
+
+/*
+** Finalize all statements and free all allocations that are specific to
+** the current object (table/index pair).
+*/
+static void rbuObjIterClearStatements(RbuObjIter *pIter){
+  RbuUpdateStmt *pUp;
+
+  sqlite3_finalize(pIter->pSelect);
+  sqlite3_finalize(pIter->pInsert);
+  sqlite3_finalize(pIter->pDelete);
+  sqlite3_finalize(pIter->pTmpInsert);
+  pUp = pIter->pRbuUpdate;
+  while( pUp ){
+    RbuUpdateStmt *pTmp = pUp->pNext;
+    sqlite3_finalize(pUp->pUpdate);
+    sqlite3_free(pUp);
+    pUp = pTmp;
+  }
+  sqlite3_free(pIter->aIdxCol);
+  sqlite3_free(pIter->zIdxSql);
+  
+  pIter->pSelect = 0;
+  pIter->pInsert = 0;
+  pIter->pDelete = 0;
+  pIter->pRbuUpdate = 0;
+  pIter->pTmpInsert = 0;
+  pIter->nCol = 0;
+  pIter->nIdxCol = 0;
+  pIter->aIdxCol = 0;
+  pIter->zIdxSql = 0;
+}
+
+/*
+** Clean up any resources allocated as part of the iterator object passed
+** as the only argument.
+*/
+static void rbuObjIterFinalize(RbuObjIter *pIter){
+  rbuObjIterClearStatements(pIter);
+  sqlite3_finalize(pIter->pTblIter);
+  sqlite3_finalize(pIter->pIdxIter);
+  rbuObjIterFreeCols(pIter);
+  memset(pIter, 0, sizeof(RbuObjIter));
+}
+
+/*
+** Advance the iterator to the next position.
+**
+** If no error occurs, SQLITE_OK is returned and the iterator is left 
+** pointing to the next entry. Otherwise, an error code and message is 
+** left in the RBU handle passed as the first argument. A copy of the 
+** error code is returned.
+*/
+static int rbuObjIterNext(sqlite3rbu *p, RbuObjIter *pIter){
+  int rc = p->rc;
+  if( rc==SQLITE_OK ){
+
+    /* Free any SQLite statements used while processing the previous object */ 
+    rbuObjIterClearStatements(pIter);
+    if( pIter->zIdx==0 ){
+      rc = sqlite3_exec(p->dbMain,
+          "DROP TRIGGER IF EXISTS temp.rbu_insert_tr;"
+          "DROP TRIGGER IF EXISTS temp.rbu_update1_tr;"
+          "DROP TRIGGER IF EXISTS temp.rbu_update2_tr;"
+          "DROP TRIGGER IF EXISTS temp.rbu_delete_tr;"
+          , 0, 0, &p->zErrmsg
+      );
+    }
+
+    if( rc==SQLITE_OK ){
+      if( pIter->bCleanup ){
+        rbuObjIterFreeCols(pIter);
+        pIter->bCleanup = 0;
+        rc = sqlite3_step(pIter->pTblIter);
+        if( rc!=SQLITE_ROW ){
+          rc = resetAndCollectError(pIter->pTblIter, &p->zErrmsg);
+          pIter->zTbl = 0;
+          pIter->zDataTbl = 0;
+        }else{
+          pIter->zTbl = (const char*)sqlite3_column_text(pIter->pTblIter, 0);
+          pIter->zDataTbl = (const char*)sqlite3_column_text(pIter->pTblIter,1);
+          rc = (pIter->zDataTbl && pIter->zTbl) ? SQLITE_OK : SQLITE_NOMEM;
+        }
+      }else{
+        if( pIter->zIdx==0 ){
+          sqlite3_stmt *pIdx = pIter->pIdxIter;
+          rc = sqlite3_bind_text(pIdx, 1, pIter->zTbl, -1, SQLITE_STATIC);
+        }
+        if( rc==SQLITE_OK ){
+          rc = sqlite3_step(pIter->pIdxIter);
+          if( rc!=SQLITE_ROW ){
+            rc = resetAndCollectError(pIter->pIdxIter, &p->zErrmsg);
+            pIter->bCleanup = 1;
+            pIter->zIdx = 0;
+          }else{
+            pIter->zIdx = (const char*)sqlite3_column_text(pIter->pIdxIter, 0);
+            pIter->iTnum = sqlite3_column_int(pIter->pIdxIter, 1);
+            pIter->bUnique = sqlite3_column_int(pIter->pIdxIter, 2);
+            rc = pIter->zIdx ? SQLITE_OK : SQLITE_NOMEM;
+          }
+        }
+      }
+    }
+  }
+
+  if( rc!=SQLITE_OK ){
+    rbuObjIterFinalize(pIter);
+    p->rc = rc;
+  }
+  return rc;
+}
+
+
+/*
+** The implementation of the rbu_target_name() SQL function. This function
+** accepts one or two arguments. The first argument is the name of a table -
+** the name of a table in the RBU database.  The second, if it is present, is 1
+** for a view or 0 for a table. 
+**
+** For a non-vacuum RBU handle, if the table name matches the pattern:
+**
+**     data[0-9]_<name>
+**
+** where <name> is any sequence of 1 or more characters, <name> is returned.
+** Otherwise, if the only argument does not match the above pattern, an SQL
+** NULL is returned.
+**
+**     "data_t1"     -> "t1"
+**     "data0123_t2" -> "t2"
+**     "dataAB_t3"   -> NULL
+**
+** For an rbu vacuum handle, a copy of the first argument is returned if
+** the second argument is either missing or 0 (not a view).
+*/
+static void rbuTargetNameFunc(
+  sqlite3_context *pCtx,
+  int argc,
+  sqlite3_value **argv
+){
+  sqlite3rbu *p = sqlite3_user_data(pCtx);
+  const char *zIn;
+  assert( argc==1 || argc==2 );
+
+  zIn = (const char*)sqlite3_value_text(argv[0]);
+  if( zIn ){
+    if( rbuIsVacuum(p) ){
+      assert( argc==2 || argc==1 );
+      if( argc==1 || 0==sqlite3_value_int(argv[1]) ){
+        sqlite3_result_text(pCtx, zIn, -1, SQLITE_STATIC);
+      }
+    }else{
+      if( strlen(zIn)>4 && memcmp("data", zIn, 4)==0 ){
+        int i;
+        for(i=4; zIn[i]>='0' && zIn[i]<='9'; i++);
+        if( zIn[i]=='_' && zIn[i+1] ){
+          sqlite3_result_text(pCtx, &zIn[i+1], -1, SQLITE_STATIC);
+        }
+      }
+    }
+  }
+}
+
+/*
+** Initialize the iterator structure passed as the second argument.
+**
+** If no error occurs, SQLITE_OK is returned and the iterator is left 
+** pointing to the first entry. Otherwise, an error code and message is 
+** left in the RBU handle passed as the first argument. A copy of the 
+** error code is returned.
+*/
+static int rbuObjIterFirst(sqlite3rbu *p, RbuObjIter *pIter){
+  int rc;
+  memset(pIter, 0, sizeof(RbuObjIter));
+
+  rc = prepareFreeAndCollectError(p->dbRbu, &pIter->pTblIter, &p->zErrmsg, 
+    sqlite3_mprintf(
+      "SELECT rbu_target_name(name, type='view') AS target, name "
+      "FROM sqlite_schema "
+      "WHERE type IN ('table', 'view') AND target IS NOT NULL "
+      " %s "
+      "ORDER BY name"
+  , rbuIsVacuum(p) ? "AND rootpage!=0 AND rootpage IS NOT NULL" : ""));
+
+  if( rc==SQLITE_OK ){
+    rc = prepareAndCollectError(p->dbMain, &pIter->pIdxIter, &p->zErrmsg,
+        "SELECT name, rootpage, sql IS NULL OR substr(8, 6)=='UNIQUE' "
+        "  FROM main.sqlite_schema "
+        "  WHERE type='index' AND tbl_name = ?"
+    );
+  }
+
+  pIter->bCleanup = 1;
+  p->rc = rc;
+  return rbuObjIterNext(p, pIter);
+}
+
+/*
+** This is a wrapper around "sqlite3_mprintf(zFmt, ...)". If an OOM occurs,
+** an error code is stored in the RBU handle passed as the first argument.
+**
+** If an error has already occurred (p->rc is already set to something other
+** than SQLITE_OK), then this function returns NULL without modifying the
+** stored error code. In this case it still calls sqlite3_free() on any 
+** printf() parameters associated with %z conversions.
+*/
+static char *rbuMPrintf(sqlite3rbu *p, const char *zFmt, ...){
+  char *zSql = 0;
+  va_list ap;
+  va_start(ap, zFmt);
+  zSql = sqlite3_vmprintf(zFmt, ap);
+  if( p->rc==SQLITE_OK ){
+    if( zSql==0 ) p->rc = SQLITE_NOMEM;
+  }else{
+    sqlite3_free(zSql);
+    zSql = 0;
+  }
+  va_end(ap);
+  return zSql;
+}
+
+/*
+** Argument zFmt is a sqlite3_mprintf() style format string. The trailing
+** arguments are the usual subsitution values. This function performs
+** the printf() style substitutions and executes the result as an SQL
+** statement on the RBU handles database.
+**
+** If an error occurs, an error code and error message is stored in the
+** RBU handle. If an error has already occurred when this function is
+** called, it is a no-op.
+*/
+static int rbuMPrintfExec(sqlite3rbu *p, sqlite3 *db, const char *zFmt, ...){
+  va_list ap;
+  char *zSql;
+  va_start(ap, zFmt);
+  zSql = sqlite3_vmprintf(zFmt, ap);
+  if( p->rc==SQLITE_OK ){
+    if( zSql==0 ){
+      p->rc = SQLITE_NOMEM;
+    }else{
+      p->rc = sqlite3_exec(db, zSql, 0, 0, &p->zErrmsg);
+    }
+  }
+  sqlite3_free(zSql);
+  va_end(ap);
+  return p->rc;
+}
+
+/*
+** Attempt to allocate and return a pointer to a zeroed block of nByte 
+** bytes. 
+**
+** If an error (i.e. an OOM condition) occurs, return NULL and leave an 
+** error code in the rbu handle passed as the first argument. Or, if an 
+** error has already occurred when this function is called, return NULL 
+** immediately without attempting the allocation or modifying the stored
+** error code.
+*/
+static void *rbuMalloc(sqlite3rbu *p, sqlite3_int64 nByte){
+  void *pRet = 0;
+  if( p->rc==SQLITE_OK ){
+    assert( nByte>0 );
+    pRet = sqlite3_malloc64(nByte);
+    if( pRet==0 ){
+      p->rc = SQLITE_NOMEM;
+    }else{
+      memset(pRet, 0, nByte);
+    }
+  }
+  return pRet;
+}
+
+
+/*
+** Allocate and zero the pIter->azTblCol[] and abTblPk[] arrays so that
+** there is room for at least nCol elements. If an OOM occurs, store an
+** error code in the RBU handle passed as the first argument.
+*/
+static void rbuAllocateIterArrays(sqlite3rbu *p, RbuObjIter *pIter, int nCol){
+  sqlite3_int64 nByte = (2*sizeof(char*) + sizeof(int) + 3*sizeof(u8)) * nCol;
+  char **azNew;
+
+  azNew = (char**)rbuMalloc(p, nByte);
+  if( azNew ){
+    pIter->azTblCol = azNew;
+    pIter->azTblType = &azNew[nCol];
+    pIter->aiSrcOrder = (int*)&pIter->azTblType[nCol];
+    pIter->abTblPk = (u8*)&pIter->aiSrcOrder[nCol];
+    pIter->abNotNull = (u8*)&pIter->abTblPk[nCol];
+    pIter->abIndexed = (u8*)&pIter->abNotNull[nCol];
+  }
+}
+
+/*
+** The first argument must be a nul-terminated string. This function
+** returns a copy of the string in memory obtained from sqlite3_malloc().
+** It is the responsibility of the caller to eventually free this memory
+** using sqlite3_free().
+**
+** If an OOM condition is encountered when attempting to allocate memory,
+** output variable (*pRc) is set to SQLITE_NOMEM before returning. Otherwise,
+** if the allocation succeeds, (*pRc) is left unchanged.
+*/
+static char *rbuStrndup(const char *zStr, int *pRc){
+  char *zRet = 0;
+
+  if( *pRc==SQLITE_OK ){
+    if( zStr ){
+      size_t nCopy = strlen(zStr) + 1;
+      zRet = (char*)sqlite3_malloc64(nCopy);
+      if( zRet ){
+        memcpy(zRet, zStr, nCopy);
+      }else{
+        *pRc = SQLITE_NOMEM;
+      }
+    }
+  }
+
+  return zRet;
+}
+
+/*
+** Finalize the statement passed as the second argument.
+**
+** If the sqlite3_finalize() call indicates that an error occurs, and the
+** rbu handle error code is not already set, set the error code and error
+** message accordingly.
+*/
+static void rbuFinalize(sqlite3rbu *p, sqlite3_stmt *pStmt){
+  sqlite3 *db = sqlite3_db_handle(pStmt);
+  int rc = sqlite3_finalize(pStmt);
+  if( p->rc==SQLITE_OK && rc!=SQLITE_OK ){
+    p->rc = rc;
+    p->zErrmsg = sqlite3_mprintf("%s", sqlite3_errmsg(db));
+  }
+}
+
+/* Determine the type of a table.
+**
+**   peType is of type (int*), a pointer to an output parameter of type
+**   (int). This call sets the output parameter as follows, depending
+**   on the type of the table specified by parameters dbName and zTbl.
+**
+**     RBU_PK_NOTABLE:       No such table.
+**     RBU_PK_NONE:          Table has an implicit rowid.
+**     RBU_PK_IPK:           Table has an explicit IPK column.
+**     RBU_PK_EXTERNAL:      Table has an external PK index.
+**     RBU_PK_WITHOUT_ROWID: Table is WITHOUT ROWID.
+**     RBU_PK_VTAB:          Table is a virtual table.
+**
+**   Argument *piPk is also of type (int*), and also points to an output
+**   parameter. Unless the table has an external primary key index 
+**   (i.e. unless *peType is set to 3), then *piPk is set to zero. Or,
+**   if the table does have an external primary key index, then *piPk
+**   is set to the root page number of the primary key index before
+**   returning.
+**
+** ALGORITHM:
+**
+**   if( no entry exists in sqlite_schema ){
+**     return RBU_PK_NOTABLE
+**   }else if( sql for the entry starts with "CREATE VIRTUAL" ){
+**     return RBU_PK_VTAB
+**   }else if( "PRAGMA index_list()" for the table contains a "pk" index ){
+**     if( the index that is the pk exists in sqlite_schema ){
+**       *piPK = rootpage of that index.
+**       return RBU_PK_EXTERNAL
+**     }else{
+**       return RBU_PK_WITHOUT_ROWID
+**     }
+**   }else if( "PRAGMA table_info()" lists one or more "pk" columns ){
+**     return RBU_PK_IPK
+**   }else{
+**     return RBU_PK_NONE
+**   }
+*/
+static void rbuTableType(
+  sqlite3rbu *p,
+  const char *zTab,
+  int *peType,
+  int *piTnum,
+  int *piPk
+){
+  /*
+  ** 0) SELECT count(*) FROM sqlite_schema where name=%Q AND IsVirtual(%Q)
+  ** 1) PRAGMA index_list = ?
+  ** 2) SELECT count(*) FROM sqlite_schema where name=%Q 
+  ** 3) PRAGMA table_info = ?
+  */
+  sqlite3_stmt *aStmt[4] = {0, 0, 0, 0};
+
+  *peType = RBU_PK_NOTABLE;
+  *piPk = 0;
+
+  assert( p->rc==SQLITE_OK );
+  p->rc = prepareFreeAndCollectError(p->dbMain, &aStmt[0], &p->zErrmsg, 
+    sqlite3_mprintf(
+          "SELECT "
+          " (sql COLLATE nocase BETWEEN 'CREATE VIRTUAL' AND 'CREATE VIRTUAM'),"
+          " rootpage"
+          "  FROM sqlite_schema"
+          " WHERE name=%Q", zTab
+  ));
+  if( p->rc!=SQLITE_OK || sqlite3_step(aStmt[0])!=SQLITE_ROW ){
+    /* Either an error, or no such table. */
+    goto rbuTableType_end;
+  }
+  if( sqlite3_column_int(aStmt[0], 0) ){
+    *peType = RBU_PK_VTAB;                     /* virtual table */
+    goto rbuTableType_end;
+  }
+  *piTnum = sqlite3_column_int(aStmt[0], 1);
+
+  p->rc = prepareFreeAndCollectError(p->dbMain, &aStmt[1], &p->zErrmsg, 
+    sqlite3_mprintf("PRAGMA index_list=%Q",zTab)
+  );
+  if( p->rc ) goto rbuTableType_end;
+  while( sqlite3_step(aStmt[1])==SQLITE_ROW ){
+    const u8 *zOrig = sqlite3_column_text(aStmt[1], 3);
+    const u8 *zIdx = sqlite3_column_text(aStmt[1], 1);
+    if( zOrig && zIdx && zOrig[0]=='p' ){
+      p->rc = prepareFreeAndCollectError(p->dbMain, &aStmt[2], &p->zErrmsg, 
+          sqlite3_mprintf(
+            "SELECT rootpage FROM sqlite_schema WHERE name = %Q", zIdx
+      ));
+      if( p->rc==SQLITE_OK ){
+        if( sqlite3_step(aStmt[2])==SQLITE_ROW ){
+          *piPk = sqlite3_column_int(aStmt[2], 0);
+          *peType = RBU_PK_EXTERNAL;
+        }else{
+          *peType = RBU_PK_WITHOUT_ROWID;
+        }
+      }
+      goto rbuTableType_end;
+    }
+  }
+
+  p->rc = prepareFreeAndCollectError(p->dbMain, &aStmt[3], &p->zErrmsg, 
+    sqlite3_mprintf("PRAGMA table_info=%Q",zTab)
+  );
+  if( p->rc==SQLITE_OK ){
+    while( sqlite3_step(aStmt[3])==SQLITE_ROW ){
+      if( sqlite3_column_int(aStmt[3],5)>0 ){
+        *peType = RBU_PK_IPK;                /* explicit IPK column */
+        goto rbuTableType_end;
+      }
+    }
+    *peType = RBU_PK_NONE;
+  }
+
+rbuTableType_end: {
+    unsigned int i;
+    for(i=0; i<sizeof(aStmt)/sizeof(aStmt[0]); i++){
+      rbuFinalize(p, aStmt[i]);
+    }
+  }
+}
+
+/*
+** This is a helper function for rbuObjIterCacheTableInfo(). It populates
+** the pIter->abIndexed[] array.
+*/
+static void rbuObjIterCacheIndexedCols(sqlite3rbu *p, RbuObjIter *pIter){
+  sqlite3_stmt *pList = 0;
+  int bIndex = 0;
+
+  if( p->rc==SQLITE_OK ){
+    memcpy(pIter->abIndexed, pIter->abTblPk, sizeof(u8)*pIter->nTblCol);
+    p->rc = prepareFreeAndCollectError(p->dbMain, &pList, &p->zErrmsg,
+        sqlite3_mprintf("PRAGMA main.index_list = %Q", pIter->zTbl)
+    );
+  }
+
+  pIter->nIndex = 0;
+  while( p->rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pList) ){
+    const char *zIdx = (const char*)sqlite3_column_text(pList, 1);
+    int bPartial = sqlite3_column_int(pList, 4);
+    sqlite3_stmt *pXInfo = 0;
+    if( zIdx==0 ) break;
+    if( bPartial ){
+      memset(pIter->abIndexed, 0x01, sizeof(u8)*pIter->nTblCol);
+    }
+    p->rc = prepareFreeAndCollectError(p->dbMain, &pXInfo, &p->zErrmsg,
+        sqlite3_mprintf("PRAGMA main.index_xinfo = %Q", zIdx)
+    );
+    while( p->rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pXInfo) ){
+      int iCid = sqlite3_column_int(pXInfo, 1);
+      if( iCid>=0 ) pIter->abIndexed[iCid] = 1;
+      if( iCid==-2 ){
+        memset(pIter->abIndexed, 0x01, sizeof(u8)*pIter->nTblCol);
+      }
+    }
+    rbuFinalize(p, pXInfo);
+    bIndex = 1;
+    pIter->nIndex++;
+  }
+
+  if( pIter->eType==RBU_PK_WITHOUT_ROWID ){
+    /* "PRAGMA index_list" includes the main PK b-tree */
+    pIter->nIndex--;
+  }
+
+  rbuFinalize(p, pList);
+  if( bIndex==0 ) pIter->abIndexed = 0;
+}
+
+
+/*
+** If they are not already populated, populate the pIter->azTblCol[],
+** pIter->abTblPk[], pIter->nTblCol and pIter->bRowid variables according to
+** the table (not index) that the iterator currently points to.
+**
+** Return SQLITE_OK if successful, or an SQLite error code otherwise. If
+** an error does occur, an error code and error message are also left in 
+** the RBU handle.
+*/
+static int rbuObjIterCacheTableInfo(sqlite3rbu *p, RbuObjIter *pIter){
+  if( pIter->azTblCol==0 ){
+    sqlite3_stmt *pStmt = 0;
+    int nCol = 0;
+    int i;                        /* for() loop iterator variable */
+    int bRbuRowid = 0;            /* If input table has column "rbu_rowid" */
+    int iOrder = 0;
+    int iTnum = 0;
+
+    /* Figure out the type of table this step will deal with. */
+    assert( pIter->eType==0 );
+    rbuTableType(p, pIter->zTbl, &pIter->eType, &iTnum, &pIter->iPkTnum);
+    if( p->rc==SQLITE_OK && pIter->eType==RBU_PK_NOTABLE ){
+      p->rc = SQLITE_ERROR;
+      p->zErrmsg = sqlite3_mprintf("no such table: %s", pIter->zTbl);
+    }
+    if( p->rc ) return p->rc;
+    if( pIter->zIdx==0 ) pIter->iTnum = iTnum;
+
+    assert( pIter->eType==RBU_PK_NONE || pIter->eType==RBU_PK_IPK 
+         || pIter->eType==RBU_PK_EXTERNAL || pIter->eType==RBU_PK_WITHOUT_ROWID
+         || pIter->eType==RBU_PK_VTAB
+    );
+
+    /* Populate the azTblCol[] and nTblCol variables based on the columns
+    ** of the input table. Ignore any input table columns that begin with
+    ** "rbu_".  */
+    p->rc = prepareFreeAndCollectError(p->dbRbu, &pStmt, &p->zErrmsg, 
+        sqlite3_mprintf("SELECT * FROM '%q'", pIter->zDataTbl)
+    );
+    if( p->rc==SQLITE_OK ){
+      nCol = sqlite3_column_count(pStmt);
+      rbuAllocateIterArrays(p, pIter, nCol);
+    }
+    for(i=0; p->rc==SQLITE_OK && i<nCol; i++){
+      const char *zName = (const char*)sqlite3_column_name(pStmt, i);
+      if( sqlite3_strnicmp("rbu_", zName, 4) ){
+        char *zCopy = rbuStrndup(zName, &p->rc);
+        pIter->aiSrcOrder[pIter->nTblCol] = pIter->nTblCol;
+        pIter->azTblCol[pIter->nTblCol++] = zCopy;
+      }
+      else if( 0==sqlite3_stricmp("rbu_rowid", zName) ){
+        bRbuRowid = 1;
+      }
+    }
+    sqlite3_finalize(pStmt);
+    pStmt = 0;
+
+    if( p->rc==SQLITE_OK
+     && rbuIsVacuum(p)==0
+     && bRbuRowid!=(pIter->eType==RBU_PK_VTAB || pIter->eType==RBU_PK_NONE)
+    ){
+      p->rc = SQLITE_ERROR;
+      p->zErrmsg = sqlite3_mprintf(
+          "table %q %s rbu_rowid column", pIter->zDataTbl,
+          (bRbuRowid ? "may not have" : "requires")
+      );
+    }
+
+    /* Check that all non-HIDDEN columns in the destination table are also
+    ** present in the input table. Populate the abTblPk[], azTblType[] and
+    ** aiTblOrder[] arrays at the same time.  */
+    if( p->rc==SQLITE_OK ){
+      p->rc = prepareFreeAndCollectError(p->dbMain, &pStmt, &p->zErrmsg, 
+          sqlite3_mprintf("PRAGMA table_info(%Q)", pIter->zTbl)
+      );
+    }
+    while( p->rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pStmt) ){
+      const char *zName = (const char*)sqlite3_column_text(pStmt, 1);
+      if( zName==0 ) break;  /* An OOM - finalize() below returns S_NOMEM */
+      for(i=iOrder; i<pIter->nTblCol; i++){
+        if( 0==strcmp(zName, pIter->azTblCol[i]) ) break;
+      }
+      if( i==pIter->nTblCol ){
+        p->rc = SQLITE_ERROR;
+        p->zErrmsg = sqlite3_mprintf("column missing from %q: %s",
+            pIter->zDataTbl, zName
+        );
+      }else{
+        int iPk = sqlite3_column_int(pStmt, 5);
+        int bNotNull = sqlite3_column_int(pStmt, 3);
+        const char *zType = (const char*)sqlite3_column_text(pStmt, 2);
+
+        if( i!=iOrder ){
+          SWAP(int, pIter->aiSrcOrder[i], pIter->aiSrcOrder[iOrder]);
+          SWAP(char*, pIter->azTblCol[i], pIter->azTblCol[iOrder]);
+        }
+
+        pIter->azTblType[iOrder] = rbuStrndup(zType, &p->rc);
+        assert( iPk>=0 );
+        pIter->abTblPk[iOrder] = (u8)iPk;
+        pIter->abNotNull[iOrder] = (u8)bNotNull || (iPk!=0);
+        iOrder++;
+      }
+    }
+
+    rbuFinalize(p, pStmt);
+    rbuObjIterCacheIndexedCols(p, pIter);
+    assert( pIter->eType!=RBU_PK_VTAB || pIter->abIndexed==0 );
+    assert( pIter->eType!=RBU_PK_VTAB || pIter->nIndex==0 );
+  }
+
+  return p->rc;
+}
+
+/*
+** This function constructs and returns a pointer to a nul-terminated 
+** string containing some SQL clause or list based on one or more of the 
+** column names currently stored in the pIter->azTblCol[] array.
+*/
+static char *rbuObjIterGetCollist(
+  sqlite3rbu *p,                  /* RBU object */
+  RbuObjIter *pIter               /* Object iterator for column names */
+){
+  char *zList = 0;
+  const char *zSep = "";
+  int i;
+  for(i=0; i<pIter->nTblCol; i++){
+    const char *z = pIter->azTblCol[i];
+    zList = rbuMPrintf(p, "%z%s\"%w\"", zList, zSep, z);
+    zSep = ", ";
+  }
+  return zList;
+}
+
+/*
+** Return a comma separated list of the quoted PRIMARY KEY column names,
+** in order, for the current table. Before each column name, add the text
+** zPre. After each column name, add the zPost text. Use zSeparator as
+** the separator text (usually ", ").
+*/
+static char *rbuObjIterGetPkList(
+  sqlite3rbu *p,                  /* RBU object */
+  RbuObjIter *pIter,              /* Object iterator for column names */
+  const char *zPre,               /* Before each quoted column name */
+  const char *zSeparator,         /* Separator to use between columns */
+  const char *zPost               /* After each quoted column name */
+){
+  int iPk = 1;
+  char *zRet = 0;
+  const char *zSep = "";
+  while( 1 ){
+    int i;
+    for(i=0; i<pIter->nTblCol; i++){
+      if( (int)pIter->abTblPk[i]==iPk ){
+        const char *zCol = pIter->azTblCol[i];
+        zRet = rbuMPrintf(p, "%z%s%s\"%w\"%s", zRet, zSep, zPre, zCol, zPost);
+        zSep = zSeparator;
+        break;
+      }
+    }
+    if( i==pIter->nTblCol ) break;
+    iPk++;
+  }
+  return zRet;
+}
+
+/*
+** This function is called as part of restarting an RBU vacuum within 
+** stage 1 of the process (while the *-oal file is being built) while
+** updating a table (not an index). The table may be a rowid table or
+** a WITHOUT ROWID table. It queries the target database to find the 
+** largest key that has already been written to the target table and
+** constructs a WHERE clause that can be used to extract the remaining
+** rows from the source table. For a rowid table, the WHERE clause
+** is of the form:
+**
+**     "WHERE _rowid_ > ?"
+**
+** and for WITHOUT ROWID tables:
+**
+**     "WHERE (key1, key2) > (?, ?)"
+**
+** Instead of "?" placeholders, the actual WHERE clauses created by
+** this function contain literal SQL values.
+*/
+static char *rbuVacuumTableStart(
+  sqlite3rbu *p,                  /* RBU handle */
+  RbuObjIter *pIter,              /* RBU iterator object */
+  int bRowid,                     /* True for a rowid table */
+  const char *zWrite              /* Target table name prefix */
+){
+  sqlite3_stmt *pMax = 0;
+  char *zRet = 0;
+  if( bRowid ){
+    p->rc = prepareFreeAndCollectError(p->dbMain, &pMax, &p->zErrmsg, 
+        sqlite3_mprintf(
+          "SELECT max(_rowid_) FROM \"%s%w\"", zWrite, pIter->zTbl
+        )
+    );
+    if( p->rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pMax) ){
+      sqlite3_int64 iMax = sqlite3_column_int64(pMax, 0);
+      zRet = rbuMPrintf(p, " WHERE _rowid_ > %lld ", iMax);
+    }
+    rbuFinalize(p, pMax);
+  }else{
+    char *zOrder = rbuObjIterGetPkList(p, pIter, "", ", ", " DESC");
+    char *zSelect = rbuObjIterGetPkList(p, pIter, "quote(", "||','||", ")");
+    char *zList = rbuObjIterGetPkList(p, pIter, "", ", ", "");
+
+    if( p->rc==SQLITE_OK ){
+      p->rc = prepareFreeAndCollectError(p->dbMain, &pMax, &p->zErrmsg, 
+          sqlite3_mprintf(
+            "SELECT %s FROM \"%s%w\" ORDER BY %s LIMIT 1", 
+                zSelect, zWrite, pIter->zTbl, zOrder
+          )
+      );
+      if( p->rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pMax) ){
+        const char *zVal = (const char*)sqlite3_column_text(pMax, 0);
+        zRet = rbuMPrintf(p, " WHERE (%s) > (%s) ", zList, zVal);
+      }
+      rbuFinalize(p, pMax);
+    }
+
+    sqlite3_free(zOrder);
+    sqlite3_free(zSelect);
+    sqlite3_free(zList);
+  }
+  return zRet;
+}
+
+/*
+** This function is called as part of restating an RBU vacuum when the
+** current operation is writing content to an index. If possible, it
+** queries the target index b-tree for the largest key already written to
+** it, then composes and returns an expression that can be used in a WHERE 
+** clause to select the remaining required rows from the source table. 
+** It is only possible to return such an expression if:
+**
+**   * The index contains no DESC columns, and
+**   * The last key written to the index before the operation was 
+**     suspended does not contain any NULL values.
+**
+** The expression is of the form:
+**
+**   (index-field1, index-field2, ...) > (?, ?, ...)
+**
+** except that the "?" placeholders are replaced with literal values.
+**
+** If the expression cannot be created, NULL is returned. In this case,
+** the caller has to use an OFFSET clause to extract only the required 
+** rows from the sourct table, just as it does for an RBU update operation.
+*/
+static char *rbuVacuumIndexStart(
+  sqlite3rbu *p,                  /* RBU handle */
+  RbuObjIter *pIter               /* RBU iterator object */
+){
+  char *zOrder = 0;
+  char *zLhs = 0;
+  char *zSelect = 0;
+  char *zVector = 0;
+  char *zRet = 0;
+  int bFailed = 0;
+  const char *zSep = "";
+  int iCol = 0;
+  sqlite3_stmt *pXInfo = 0;
+
+  p->rc = prepareFreeAndCollectError(p->dbMain, &pXInfo, &p->zErrmsg,
+      sqlite3_mprintf("PRAGMA main.index_xinfo = %Q", pIter->zIdx)
+  );
+  while( p->rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pXInfo) ){
+    int iCid = sqlite3_column_int(pXInfo, 1);
+    const char *zCollate = (const char*)sqlite3_column_text(pXInfo, 4);
+    const char *zCol;
+    if( sqlite3_column_int(pXInfo, 3) ){
+      bFailed = 1;
+      break;
+    }
+
+    if( iCid<0 ){
+      if( pIter->eType==RBU_PK_IPK ){
+        int i;
+        for(i=0; pIter->abTblPk[i]==0; i++);
+        assert( i<pIter->nTblCol );
+        zCol = pIter->azTblCol[i];
+      }else{
+        zCol = "_rowid_";
+      }
+    }else{
+      zCol = pIter->azTblCol[iCid];
+    }
+
+    zLhs = rbuMPrintf(p, "%z%s \"%w\" COLLATE %Q",
+        zLhs, zSep, zCol, zCollate
+        );
+    zOrder = rbuMPrintf(p, "%z%s \"rbu_imp_%d%w\" COLLATE %Q DESC",
+        zOrder, zSep, iCol, zCol, zCollate
+        );
+    zSelect = rbuMPrintf(p, "%z%s quote(\"rbu_imp_%d%w\")",
+        zSelect, zSep, iCol, zCol
+        );
+    zSep = ", ";
+    iCol++;
+  }
+  rbuFinalize(p, pXInfo);
+  if( bFailed ) goto index_start_out;
+
+  if( p->rc==SQLITE_OK ){
+    sqlite3_stmt *pSel = 0;
+
+    p->rc = prepareFreeAndCollectError(p->dbMain, &pSel, &p->zErrmsg,
+        sqlite3_mprintf("SELECT %s FROM \"rbu_imp_%w\" ORDER BY %s LIMIT 1",
+          zSelect, pIter->zTbl, zOrder
+        )
+    );
+    if( p->rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pSel) ){
+      zSep = "";
+      for(iCol=0; iCol<pIter->nCol; iCol++){
+        const char *zQuoted = (const char*)sqlite3_column_text(pSel, iCol);
+        if( zQuoted==0 ){
+          p->rc = SQLITE_NOMEM;
+        }else if( zQuoted[0]=='N' ){
+          bFailed = 1;
+          break;
+        }
+        zVector = rbuMPrintf(p, "%z%s%s", zVector, zSep, zQuoted);
+        zSep = ", ";
+      }
+
+      if( !bFailed ){
+        zRet = rbuMPrintf(p, "(%s) > (%s)", zLhs, zVector);
+      }
+    }
+    rbuFinalize(p, pSel);
+  }
+
+ index_start_out:
+  sqlite3_free(zOrder);
+  sqlite3_free(zSelect);
+  sqlite3_free(zVector);
+  sqlite3_free(zLhs);
+  return zRet;
+}
+
+/*
+** This function is used to create a SELECT list (the list of SQL 
+** expressions that follows a SELECT keyword) for a SELECT statement 
+** used to read from an data_xxx or rbu_tmp_xxx table while updating the 
+** index object currently indicated by the iterator object passed as the 
+** second argument. A "PRAGMA index_xinfo = <idxname>" statement is used 
+** to obtain the required information.
+**
+** If the index is of the following form:
+**
+**   CREATE INDEX i1 ON t1(c, b COLLATE nocase);
+**
+** and "t1" is a table with an explicit INTEGER PRIMARY KEY column 
+** "ipk", the returned string is:
+**
+**   "`c` COLLATE 'BINARY', `b` COLLATE 'NOCASE', `ipk` COLLATE 'BINARY'"
+**
+** As well as the returned string, three other malloc'd strings are 
+** returned via output parameters. As follows:
+**
+**   pzImposterCols: ...
+**   pzImposterPk: ...
+**   pzWhere: ...
+*/
+static char *rbuObjIterGetIndexCols(
+  sqlite3rbu *p,                  /* RBU object */
+  RbuObjIter *pIter,              /* Object iterator for column names */
+  char **pzImposterCols,          /* OUT: Columns for imposter table */
+  char **pzImposterPk,            /* OUT: Imposter PK clause */
+  char **pzWhere,                 /* OUT: WHERE clause */
+  int *pnBind                     /* OUT: Trbul number of columns */
+){
+  int rc = p->rc;                 /* Error code */
+  int rc2;                        /* sqlite3_finalize() return code */
+  char *zRet = 0;                 /* String to return */
+  char *zImpCols = 0;             /* String to return via *pzImposterCols */
+  char *zImpPK = 0;               /* String to return via *pzImposterPK */
+  char *zWhere = 0;               /* String to return via *pzWhere */
+  int nBind = 0;                  /* Value to return via *pnBind */
+  const char *zCom = "";          /* Set to ", " later on */
+  const char *zAnd = "";          /* Set to " AND " later on */
+  sqlite3_stmt *pXInfo = 0;       /* PRAGMA index_xinfo = ? */
+
+  if( rc==SQLITE_OK ){
+    assert( p->zErrmsg==0 );
+    rc = prepareFreeAndCollectError(p->dbMain, &pXInfo, &p->zErrmsg,
+        sqlite3_mprintf("PRAGMA main.index_xinfo = %Q", pIter->zIdx)
+    );
+  }
+
+  while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pXInfo) ){
+    int iCid = sqlite3_column_int(pXInfo, 1);
+    int bDesc = sqlite3_column_int(pXInfo, 3);
+    const char *zCollate = (const char*)sqlite3_column_text(pXInfo, 4);
+    const char *zCol = 0;
+    const char *zType;
+
+    if( iCid==-2 ){
+      int iSeq = sqlite3_column_int(pXInfo, 0);
+      zRet = sqlite3_mprintf("%z%s(%.*s) COLLATE %Q", zRet, zCom,
+          pIter->aIdxCol[iSeq].nSpan, pIter->aIdxCol[iSeq].zSpan, zCollate
+      );
+      zType = "";
+    }else {
+      if( iCid<0 ){
+        /* An integer primary key. If the table has an explicit IPK, use
+        ** its name. Otherwise, use "rbu_rowid".  */
+        if( pIter->eType==RBU_PK_IPK ){
+          int i;
+          for(i=0; pIter->abTblPk[i]==0; i++);
+          assert( i<pIter->nTblCol );
+          zCol = pIter->azTblCol[i];
+        }else if( rbuIsVacuum(p) ){
+          zCol = "_rowid_";
+        }else{
+          zCol = "rbu_rowid";
+        }
+        zType = "INTEGER";
+      }else{
+        zCol = pIter->azTblCol[iCid];
+        zType = pIter->azTblType[iCid];
+      }
+      zRet = sqlite3_mprintf("%z%s\"%w\" COLLATE %Q", zRet, zCom,zCol,zCollate);
+    }
+
+    if( pIter->bUnique==0 || sqlite3_column_int(pXInfo, 5) ){
+      const char *zOrder = (bDesc ? " DESC" : "");
+      zImpPK = sqlite3_mprintf("%z%s\"rbu_imp_%d%w\"%s", 
+          zImpPK, zCom, nBind, zCol, zOrder
+      );
+    }
+    zImpCols = sqlite3_mprintf("%z%s\"rbu_imp_%d%w\" %s COLLATE %Q", 
+        zImpCols, zCom, nBind, zCol, zType, zCollate
+    );
+    zWhere = sqlite3_mprintf(
+        "%z%s\"rbu_imp_%d%w\" IS ?", zWhere, zAnd, nBind, zCol
+    );
+    if( zRet==0 || zImpPK==0 || zImpCols==0 || zWhere==0 ) rc = SQLITE_NOMEM;
+    zCom = ", ";
+    zAnd = " AND ";
+    nBind++;
+  }
+
+  rc2 = sqlite3_finalize(pXInfo);
+  if( rc==SQLITE_OK ) rc = rc2;
+
+  if( rc!=SQLITE_OK ){
+    sqlite3_free(zRet);
+    sqlite3_free(zImpCols);
+    sqlite3_free(zImpPK);
+    sqlite3_free(zWhere);
+    zRet = 0;
+    zImpCols = 0;
+    zImpPK = 0;
+    zWhere = 0;
+    p->rc = rc;
+  }
+
+  *pzImposterCols = zImpCols;
+  *pzImposterPk = zImpPK;
+  *pzWhere = zWhere;
+  *pnBind = nBind;
+  return zRet;
+}
+
+/*
+** Assuming the current table columns are "a", "b" and "c", and the zObj
+** paramter is passed "old", return a string of the form:
+**
+**     "old.a, old.b, old.b"
+**
+** With the column names escaped.
+**
+** For tables with implicit rowids - RBU_PK_EXTERNAL and RBU_PK_NONE, append
+** the text ", old._rowid_" to the returned value.
+*/
+static char *rbuObjIterGetOldlist(
+  sqlite3rbu *p, 
+  RbuObjIter *pIter,
+  const char *zObj
+){
+  char *zList = 0;
+  if( p->rc==SQLITE_OK && pIter->abIndexed ){
+    const char *zS = "";
+    int i;
+    for(i=0; i<pIter->nTblCol; i++){
+      if( pIter->abIndexed[i] ){
+        const char *zCol = pIter->azTblCol[i];
+        zList = sqlite3_mprintf("%z%s%s.\"%w\"", zList, zS, zObj, zCol);
+      }else{
+        zList = sqlite3_mprintf("%z%sNULL", zList, zS);
+      }
+      zS = ", ";
+      if( zList==0 ){
+        p->rc = SQLITE_NOMEM;
+        break;
+      }
+    }
+
+    /* For a table with implicit rowids, append "old._rowid_" to the list. */
+    if( pIter->eType==RBU_PK_EXTERNAL || pIter->eType==RBU_PK_NONE ){
+      zList = rbuMPrintf(p, "%z, %s._rowid_", zList, zObj);
+    }
+  }
+  return zList;
+}
+
+/*
+** Return an expression that can be used in a WHERE clause to match the
+** primary key of the current table. For example, if the table is:
+**
+**   CREATE TABLE t1(a, b, c, PRIMARY KEY(b, c));
+**
+** Return the string:
+**
+**   "b = ?1 AND c = ?2"
+*/
+static char *rbuObjIterGetWhere(
+  sqlite3rbu *p, 
+  RbuObjIter *pIter
+){
+  char *zList = 0;
+  if( pIter->eType==RBU_PK_VTAB || pIter->eType==RBU_PK_NONE ){
+    zList = rbuMPrintf(p, "_rowid_ = ?%d", pIter->nTblCol+1);
+  }else if( pIter->eType==RBU_PK_EXTERNAL ){
+    const char *zSep = "";
+    int i;
+    for(i=0; i<pIter->nTblCol; i++){
+      if( pIter->abTblPk[i] ){
+        zList = rbuMPrintf(p, "%z%sc%d=?%d", zList, zSep, i, i+1);
+        zSep = " AND ";
+      }
+    }
+    zList = rbuMPrintf(p, 
+        "_rowid_ = (SELECT id FROM rbu_imposter2 WHERE %z)", zList
+    );
+
+  }else{
+    const char *zSep = "";
+    int i;
+    for(i=0; i<pIter->nTblCol; i++){
+      if( pIter->abTblPk[i] ){
+        const char *zCol = pIter->azTblCol[i];
+        zList = rbuMPrintf(p, "%z%s\"%w\"=?%d", zList, zSep, zCol, i+1);
+        zSep = " AND ";
+      }
+    }
+  }
+  return zList;
+}
+
+/*
+** The SELECT statement iterating through the keys for the current object
+** (p->objiter.pSelect) currently points to a valid row. However, there
+** is something wrong with the rbu_control value in the rbu_control value
+** stored in the (p->nCol+1)'th column. Set the error code and error message
+** of the RBU handle to something reflecting this.
+*/
+static void rbuBadControlError(sqlite3rbu *p){
+  p->rc = SQLITE_ERROR;
+  p->zErrmsg = sqlite3_mprintf("invalid rbu_control value");
+}
+
+
+/*
+** Return a nul-terminated string containing the comma separated list of
+** assignments that should be included following the "SET" keyword of
+** an UPDATE statement used to update the table object that the iterator
+** passed as the second argument currently points to if the rbu_control
+** column of the data_xxx table entry is set to zMask.
+**
+** The memory for the returned string is obtained from sqlite3_malloc().
+** It is the responsibility of the caller to eventually free it using
+** sqlite3_free(). 
+**
+** If an OOM error is encountered when allocating space for the new
+** string, an error code is left in the rbu handle passed as the first
+** argument and NULL is returned. Or, if an error has already occurred
+** when this function is called, NULL is returned immediately, without
+** attempting the allocation or modifying the stored error code.
+*/
+static char *rbuObjIterGetSetlist(
+  sqlite3rbu *p,
+  RbuObjIter *pIter,
+  const char *zMask
+){
+  char *zList = 0;
+  if( p->rc==SQLITE_OK ){
+    int i;
+
+    if( (int)strlen(zMask)!=pIter->nTblCol ){
+      rbuBadControlError(p);
+    }else{
+      const char *zSep = "";
+      for(i=0; i<pIter->nTblCol; i++){
+        char c = zMask[pIter->aiSrcOrder[i]];
+        if( c=='x' ){
+          zList = rbuMPrintf(p, "%z%s\"%w\"=?%d", 
+              zList, zSep, pIter->azTblCol[i], i+1
+          );
+          zSep = ", ";
+        }
+        else if( c=='d' ){
+          zList = rbuMPrintf(p, "%z%s\"%w\"=rbu_delta(\"%w\", ?%d)", 
+              zList, zSep, pIter->azTblCol[i], pIter->azTblCol[i], i+1
+          );
+          zSep = ", ";
+        }
+        else if( c=='f' ){
+          zList = rbuMPrintf(p, "%z%s\"%w\"=rbu_fossil_delta(\"%w\", ?%d)", 
+              zList, zSep, pIter->azTblCol[i], pIter->azTblCol[i], i+1
+          );
+          zSep = ", ";
+        }
+      }
+    }
+  }
+  return zList;
+}
+
+/*
+** Return a nul-terminated string consisting of nByte comma separated
+** "?" expressions. For example, if nByte is 3, return a pointer to
+** a buffer containing the string "?,?,?".
+**
+** The memory for the returned string is obtained from sqlite3_malloc().
+** It is the responsibility of the caller to eventually free it using
+** sqlite3_free(). 
+**
+** If an OOM error is encountered when allocating space for the new
+** string, an error code is left in the rbu handle passed as the first
+** argument and NULL is returned. Or, if an error has already occurred
+** when this function is called, NULL is returned immediately, without
+** attempting the allocation or modifying the stored error code.
+*/
+static char *rbuObjIterGetBindlist(sqlite3rbu *p, int nBind){
+  char *zRet = 0;
+  sqlite3_int64 nByte = 2*(sqlite3_int64)nBind + 1;
+
+  zRet = (char*)rbuMalloc(p, nByte);
+  if( zRet ){
+    int i;
+    for(i=0; i<nBind; i++){
+      zRet[i*2] = '?';
+      zRet[i*2+1] = (i+1==nBind) ? '\0' : ',';
+    }
+  }
+  return zRet;
+}
+
+/*
+** The iterator currently points to a table (not index) of type 
+** RBU_PK_WITHOUT_ROWID. This function creates the PRIMARY KEY 
+** declaration for the corresponding imposter table. For example,
+** if the iterator points to a table created as:
+**
+**   CREATE TABLE t1(a, b, c, PRIMARY KEY(b, a DESC)) WITHOUT ROWID
+**
+** this function returns:
+**
+**   PRIMARY KEY("b", "a" DESC)
+*/
+static char *rbuWithoutRowidPK(sqlite3rbu *p, RbuObjIter *pIter){
+  char *z = 0;
+  assert( pIter->zIdx==0 );
+  if( p->rc==SQLITE_OK ){
+    const char *zSep = "PRIMARY KEY(";
+    sqlite3_stmt *pXList = 0;     /* PRAGMA index_list = (pIter->zTbl) */
+    sqlite3_stmt *pXInfo = 0;     /* PRAGMA index_xinfo = <pk-index> */
+   
+    p->rc = prepareFreeAndCollectError(p->dbMain, &pXList, &p->zErrmsg,
+        sqlite3_mprintf("PRAGMA main.index_list = %Q", pIter->zTbl)
+    );
+    while( p->rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pXList) ){
+      const char *zOrig = (const char*)sqlite3_column_text(pXList,3);
+      if( zOrig && strcmp(zOrig, "pk")==0 ){
+        const char *zIdx = (const char*)sqlite3_column_text(pXList,1);
+        if( zIdx ){
+          p->rc = prepareFreeAndCollectError(p->dbMain, &pXInfo, &p->zErrmsg,
+              sqlite3_mprintf("PRAGMA main.index_xinfo = %Q", zIdx)
+          );
+        }
+        break;
+      }
+    }
+    rbuFinalize(p, pXList);
+
+    while( p->rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pXInfo) ){
+      if( sqlite3_column_int(pXInfo, 5) ){
+        /* int iCid = sqlite3_column_int(pXInfo, 0); */
+        const char *zCol = (const char*)sqlite3_column_text(pXInfo, 2);
+        const char *zDesc = sqlite3_column_int(pXInfo, 3) ? " DESC" : "";
+        z = rbuMPrintf(p, "%z%s\"%w\"%s", z, zSep, zCol, zDesc);
+        zSep = ", ";
+      }
+    }
+    z = rbuMPrintf(p, "%z)", z);
+    rbuFinalize(p, pXInfo);
+  }
+  return z;
+}
+
+/*
+** This function creates the second imposter table used when writing to
+** a table b-tree where the table has an external primary key. If the
+** iterator passed as the second argument does not currently point to
+** a table (not index) with an external primary key, this function is a
+** no-op. 
+**
+** Assuming the iterator does point to a table with an external PK, this
+** function creates a WITHOUT ROWID imposter table named "rbu_imposter2"
+** used to access that PK index. For example, if the target table is
+** declared as follows:
+**
+**   CREATE TABLE t1(a, b TEXT, c REAL, PRIMARY KEY(b, c));
+**
+** then the imposter table schema is:
+**
+**   CREATE TABLE rbu_imposter2(c1 TEXT, c2 REAL, id INTEGER) WITHOUT ROWID;
+**
+*/
+static void rbuCreateImposterTable2(sqlite3rbu *p, RbuObjIter *pIter){
+  if( p->rc==SQLITE_OK && pIter->eType==RBU_PK_EXTERNAL ){
+    int tnum = pIter->iPkTnum;    /* Root page of PK index */
+    sqlite3_stmt *pQuery = 0;     /* SELECT name ... WHERE rootpage = $tnum */
+    const char *zIdx = 0;         /* Name of PK index */
+    sqlite3_stmt *pXInfo = 0;     /* PRAGMA main.index_xinfo = $zIdx */
+    const char *zComma = "";
+    char *zCols = 0;              /* Used to build up list of table cols */
+    char *zPk = 0;                /* Used to build up table PK declaration */
+
+    /* Figure out the name of the primary key index for the current table.
+    ** This is needed for the argument to "PRAGMA index_xinfo". Set
+    ** zIdx to point to a nul-terminated string containing this name. */
+    p->rc = prepareAndCollectError(p->dbMain, &pQuery, &p->zErrmsg, 
+        "SELECT name FROM sqlite_schema WHERE rootpage = ?"
+    );
+    if( p->rc==SQLITE_OK ){
+      sqlite3_bind_int(pQuery, 1, tnum);
+      if( SQLITE_ROW==sqlite3_step(pQuery) ){
+        zIdx = (const char*)sqlite3_column_text(pQuery, 0);
+      }
+    }
+    if( zIdx ){
+      p->rc = prepareFreeAndCollectError(p->dbMain, &pXInfo, &p->zErrmsg,
+          sqlite3_mprintf("PRAGMA main.index_xinfo = %Q", zIdx)
+      );
+    }
+    rbuFinalize(p, pQuery);
+
+    while( p->rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pXInfo) ){
+      int bKey = sqlite3_column_int(pXInfo, 5);
+      if( bKey ){
+        int iCid = sqlite3_column_int(pXInfo, 1);
+        int bDesc = sqlite3_column_int(pXInfo, 3);
+        const char *zCollate = (const char*)sqlite3_column_text(pXInfo, 4);
+        zCols = rbuMPrintf(p, "%z%sc%d %s COLLATE %Q", zCols, zComma, 
+            iCid, pIter->azTblType[iCid], zCollate
+        );
+        zPk = rbuMPrintf(p, "%z%sc%d%s", zPk, zComma, iCid, bDesc?" DESC":"");
+        zComma = ", ";
+      }
+    }
+    zCols = rbuMPrintf(p, "%z, id INTEGER", zCols);
+    rbuFinalize(p, pXInfo);
+
+    sqlite3_test_control(SQLITE_TESTCTRL_IMPOSTER, p->dbMain, "main", 1, tnum);
+    rbuMPrintfExec(p, p->dbMain,
+        "CREATE TABLE rbu_imposter2(%z, PRIMARY KEY(%z)) WITHOUT ROWID", 
+        zCols, zPk
+    );
+    sqlite3_test_control(SQLITE_TESTCTRL_IMPOSTER, p->dbMain, "main", 0, 0);
+  }
+}
+
+/*
+** If an error has already occurred when this function is called, it 
+** immediately returns zero (without doing any work). Or, if an error
+** occurs during the execution of this function, it sets the error code
+** in the sqlite3rbu object indicated by the first argument and returns
+** zero.
+**
+** The iterator passed as the second argument is guaranteed to point to
+** a table (not an index) when this function is called. This function
+** attempts to create any imposter table required to write to the main
+** table b-tree of the table before returning. Non-zero is returned if
+** an imposter table are created, or zero otherwise.
+**
+** An imposter table is required in all cases except RBU_PK_VTAB. Only
+** virtual tables are written to directly. The imposter table has the 
+** same schema as the actual target table (less any UNIQUE constraints). 
+** More precisely, the "same schema" means the same columns, types, 
+** collation sequences. For tables that do not have an external PRIMARY
+** KEY, it also means the same PRIMARY KEY declaration.
+*/
+static void rbuCreateImposterTable(sqlite3rbu *p, RbuObjIter *pIter){
+  if( p->rc==SQLITE_OK && pIter->eType!=RBU_PK_VTAB ){
+    int tnum = pIter->iTnum;
+    const char *zComma = "";
+    char *zSql = 0;
+    int iCol;
+    sqlite3_test_control(SQLITE_TESTCTRL_IMPOSTER, p->dbMain, "main", 0, 1);
+
+    for(iCol=0; p->rc==SQLITE_OK && iCol<pIter->nTblCol; iCol++){
+      const char *zPk = "";
+      const char *zCol = pIter->azTblCol[iCol];
+      const char *zColl = 0;
+
+      p->rc = sqlite3_table_column_metadata(
+          p->dbMain, "main", pIter->zTbl, zCol, 0, &zColl, 0, 0, 0
+      );
+
+      if( pIter->eType==RBU_PK_IPK && pIter->abTblPk[iCol] ){
+        /* If the target table column is an "INTEGER PRIMARY KEY", add
+        ** "PRIMARY KEY" to the imposter table column declaration. */
+        zPk = "PRIMARY KEY ";
+      }
+      zSql = rbuMPrintf(p, "%z%s\"%w\" %s %sCOLLATE %Q%s", 
+          zSql, zComma, zCol, pIter->azTblType[iCol], zPk, zColl,
+          (pIter->abNotNull[iCol] ? " NOT NULL" : "")
+      );
+      zComma = ", ";
+    }
+
+    if( pIter->eType==RBU_PK_WITHOUT_ROWID ){
+      char *zPk = rbuWithoutRowidPK(p, pIter);
+      if( zPk ){
+        zSql = rbuMPrintf(p, "%z, %z", zSql, zPk);
+      }
+    }
+
+    sqlite3_test_control(SQLITE_TESTCTRL_IMPOSTER, p->dbMain, "main", 1, tnum);
+    rbuMPrintfExec(p, p->dbMain, "CREATE TABLE \"rbu_imp_%w\"(%z)%s", 
+        pIter->zTbl, zSql, 
+        (pIter->eType==RBU_PK_WITHOUT_ROWID ? " WITHOUT ROWID" : "")
+    );
+    sqlite3_test_control(SQLITE_TESTCTRL_IMPOSTER, p->dbMain, "main", 0, 0);
+  }
+}
+
+/*
+** Prepare a statement used to insert rows into the "rbu_tmp_xxx" table.
+** Specifically a statement of the form:
+**
+**     INSERT INTO rbu_tmp_xxx VALUES(?, ?, ? ...);
+**
+** The number of bound variables is equal to the number of columns in
+** the target table, plus one (for the rbu_control column), plus one more 
+** (for the rbu_rowid column) if the target table is an implicit IPK or 
+** virtual table.
+*/
+static void rbuObjIterPrepareTmpInsert(
+  sqlite3rbu *p, 
+  RbuObjIter *pIter,
+  const char *zCollist,
+  const char *zRbuRowid
+){
+  int bRbuRowid = (pIter->eType==RBU_PK_EXTERNAL || pIter->eType==RBU_PK_NONE);
+  char *zBind = rbuObjIterGetBindlist(p, pIter->nTblCol + 1 + bRbuRowid);
+  if( zBind ){
+    assert( pIter->pTmpInsert==0 );
+    p->rc = prepareFreeAndCollectError(
+        p->dbRbu, &pIter->pTmpInsert, &p->zErrmsg, sqlite3_mprintf(
+          "INSERT INTO %s.'rbu_tmp_%q'(rbu_control,%s%s) VALUES(%z)", 
+          p->zStateDb, pIter->zDataTbl, zCollist, zRbuRowid, zBind
+    ));
+  }
+}
+
+static void rbuTmpInsertFunc(
+  sqlite3_context *pCtx, 
+  int nVal,
+  sqlite3_value **apVal
+){
+  sqlite3rbu *p = sqlite3_user_data(pCtx);
+  int rc = SQLITE_OK;
+  int i;
+
+  assert( sqlite3_value_int(apVal[0])!=0
+      || p->objiter.eType==RBU_PK_EXTERNAL 
+      || p->objiter.eType==RBU_PK_NONE 
+  );
+  if( sqlite3_value_int(apVal[0])!=0 ){
+    p->nPhaseOneStep += p->objiter.nIndex;
+  }
+
+  for(i=0; rc==SQLITE_OK && i<nVal; i++){
+    rc = sqlite3_bind_value(p->objiter.pTmpInsert, i+1, apVal[i]);
+  }
+  if( rc==SQLITE_OK ){
+    sqlite3_step(p->objiter.pTmpInsert);
+    rc = sqlite3_reset(p->objiter.pTmpInsert);
+  }
+
+  if( rc!=SQLITE_OK ){
+    sqlite3_result_error_code(pCtx, rc);
+  }
+}
+
+static char *rbuObjIterGetIndexWhere(sqlite3rbu *p, RbuObjIter *pIter){
+  sqlite3_stmt *pStmt = 0;
+  int rc = p->rc;
+  char *zRet = 0;
+
+  assert( pIter->zIdxSql==0 && pIter->nIdxCol==0 && pIter->aIdxCol==0 );
+
+  if( rc==SQLITE_OK ){
+    rc = prepareAndCollectError(p->dbMain, &pStmt, &p->zErrmsg,
+        "SELECT trim(sql) FROM sqlite_schema WHERE type='index' AND name=?"
+    );
+  }
+  if( rc==SQLITE_OK ){
+    int rc2;
+    rc = sqlite3_bind_text(pStmt, 1, pIter->zIdx, -1, SQLITE_STATIC);
+    if( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pStmt) ){
+      char *zSql = (char*)sqlite3_column_text(pStmt, 0);
+      if( zSql ){
+        pIter->zIdxSql = zSql = rbuStrndup(zSql, &rc);
+      }
+      if( zSql ){
+        int nParen = 0;           /* Number of open parenthesis */
+        int i;
+        int iIdxCol = 0;
+        int nIdxAlloc = 0;
+        for(i=0; zSql[i]; i++){
+          char c = zSql[i];
+
+          /* If necessary, grow the pIter->aIdxCol[] array */
+          if( iIdxCol==nIdxAlloc ){
+            RbuSpan *aIdxCol = (RbuSpan*)sqlite3_realloc(
+                pIter->aIdxCol, (nIdxAlloc+16)*sizeof(RbuSpan)
+            );
+            if( aIdxCol==0 ){
+              rc = SQLITE_NOMEM;
+              break;
+            }
+            pIter->aIdxCol = aIdxCol;
+            nIdxAlloc += 16;
+          }
+
+          if( c=='(' ){
+            if( nParen==0 ){
+              assert( iIdxCol==0 );
+              pIter->aIdxCol[0].zSpan = &zSql[i+1];
+            }
+            nParen++;
+          }
+          else if( c==')' ){
+            nParen--;
+            if( nParen==0 ){
+              int nSpan = (int)(&zSql[i] - pIter->aIdxCol[iIdxCol].zSpan);
+              pIter->aIdxCol[iIdxCol++].nSpan = nSpan;
+              i++;
+              break;
+            }
+          }else if( c==',' && nParen==1 ){
+            int nSpan = (int)(&zSql[i] - pIter->aIdxCol[iIdxCol].zSpan);
+            pIter->aIdxCol[iIdxCol++].nSpan = nSpan;
+            pIter->aIdxCol[iIdxCol].zSpan = &zSql[i+1];
+          }else if( c=='"' || c=='\'' || c=='`' ){
+            for(i++; 1; i++){
+              if( zSql[i]==c ){
+                if( zSql[i+1]!=c ) break;
+                i++;
+              }
+            }
+          }else if( c=='[' ){
+            for(i++; 1; i++){
+              if( zSql[i]==']' ) break;
+            }
+          }else if( c=='-' && zSql[i+1]=='-' ){
+            for(i=i+2; zSql[i] && zSql[i]!='\n'; i++);
+            if( zSql[i]=='\0' ) break;
+          }else if( c=='/' && zSql[i+1]=='*' ){
+            for(i=i+2; zSql[i] && (zSql[i]!='*' || zSql[i+1]!='/'); i++);
+            if( zSql[i]=='\0' ) break;
+            i++;
+          }
+        }
+        if( zSql[i] ){
+          zRet = rbuStrndup(&zSql[i], &rc);
+        }
+        pIter->nIdxCol = iIdxCol;
+      }
+    }
+
+    rc2 = sqlite3_finalize(pStmt);
+    if( rc==SQLITE_OK ) rc = rc2;
+  }
+
+  p->rc = rc;
+  return zRet;
+}
+
+/*
+** Ensure that the SQLite statement handles required to update the 
+** target database object currently indicated by the iterator passed 
+** as the second argument are available.
+*/
+static int rbuObjIterPrepareAll(
+  sqlite3rbu *p, 
+  RbuObjIter *pIter,
+  int nOffset                     /* Add "LIMIT -1 OFFSET $nOffset" to SELECT */
+){
+  assert( pIter->bCleanup==0 );
+  if( pIter->pSelect==0 && rbuObjIterCacheTableInfo(p, pIter)==SQLITE_OK ){
+    const int tnum = pIter->iTnum;
+    char *zCollist = 0;           /* List of indexed columns */
+    char **pz = &p->zErrmsg;
+    const char *zIdx = pIter->zIdx;
+    char *zLimit = 0;
+
+    if( nOffset ){
+      zLimit = sqlite3_mprintf(" LIMIT -1 OFFSET %d", nOffset);
+      if( !zLimit ) p->rc = SQLITE_NOMEM;
+    }
+
+    if( zIdx ){
+      const char *zTbl = pIter->zTbl;
+      char *zImposterCols = 0;    /* Columns for imposter table */
+      char *zImposterPK = 0;      /* Primary key declaration for imposter */
+      char *zWhere = 0;           /* WHERE clause on PK columns */
+      char *zBind = 0;
+      char *zPart = 0;
+      int nBind = 0;
+
+      assert( pIter->eType!=RBU_PK_VTAB );
+      zPart = rbuObjIterGetIndexWhere(p, pIter);
+      zCollist = rbuObjIterGetIndexCols(
+          p, pIter, &zImposterCols, &zImposterPK, &zWhere, &nBind
+      );
+      zBind = rbuObjIterGetBindlist(p, nBind);
+
+      /* Create the imposter table used to write to this index. */
+      sqlite3_test_control(SQLITE_TESTCTRL_IMPOSTER, p->dbMain, "main", 0, 1);
+      sqlite3_test_control(SQLITE_TESTCTRL_IMPOSTER, p->dbMain, "main", 1,tnum);
+      rbuMPrintfExec(p, p->dbMain,
+          "CREATE TABLE \"rbu_imp_%w\"( %s, PRIMARY KEY( %s ) ) WITHOUT ROWID",
+          zTbl, zImposterCols, zImposterPK
+      );
+      sqlite3_test_control(SQLITE_TESTCTRL_IMPOSTER, p->dbMain, "main", 0, 0);
+
+      /* Create the statement to insert index entries */
+      pIter->nCol = nBind;
+      if( p->rc==SQLITE_OK ){
+        p->rc = prepareFreeAndCollectError(
+            p->dbMain, &pIter->pInsert, &p->zErrmsg,
+          sqlite3_mprintf("INSERT INTO \"rbu_imp_%w\" VALUES(%s)", zTbl, zBind)
+        );
+      }
+
+      /* And to delete index entries */
+      if( rbuIsVacuum(p)==0 && p->rc==SQLITE_OK ){
+        p->rc = prepareFreeAndCollectError(
+            p->dbMain, &pIter->pDelete, &p->zErrmsg,
+          sqlite3_mprintf("DELETE FROM \"rbu_imp_%w\" WHERE %s", zTbl, zWhere)
+        );
+      }
+
+      /* Create the SELECT statement to read keys in sorted order */
+      if( p->rc==SQLITE_OK ){
+        char *zSql;
+        if( rbuIsVacuum(p) ){
+          char *zStart = 0;
+          if( nOffset ){
+            zStart = rbuVacuumIndexStart(p, pIter);
+            if( zStart ){
+              sqlite3_free(zLimit);
+              zLimit = 0;
+            }
+          }
+
+          zSql = sqlite3_mprintf(
+              "SELECT %s, 0 AS rbu_control FROM '%q' %s %s %s ORDER BY %s%s",
+              zCollist, 
+              pIter->zDataTbl,
+              zPart, 
+              (zStart ? (zPart ? "AND" : "WHERE") : ""), zStart,
+              zCollist, zLimit
+          );
+          sqlite3_free(zStart);
+        }else
+
+        if( pIter->eType==RBU_PK_EXTERNAL || pIter->eType==RBU_PK_NONE ){
+          zSql = sqlite3_mprintf(
+              "SELECT %s, rbu_control FROM %s.'rbu_tmp_%q' %s ORDER BY %s%s",
+              zCollist, p->zStateDb, pIter->zDataTbl,
+              zPart, zCollist, zLimit
+          );
+        }else{
+          zSql = sqlite3_mprintf(
+              "SELECT %s, rbu_control FROM %s.'rbu_tmp_%q' %s "
+              "UNION ALL "
+              "SELECT %s, rbu_control FROM '%q' "
+              "%s %s typeof(rbu_control)='integer' AND rbu_control!=1 "
+              "ORDER BY %s%s",
+              zCollist, p->zStateDb, pIter->zDataTbl, zPart,
+              zCollist, pIter->zDataTbl, 
+              zPart,
+              (zPart ? "AND" : "WHERE"),
+              zCollist, zLimit
+          );
+        }
+        if( p->rc==SQLITE_OK ){
+          p->rc = prepareFreeAndCollectError(p->dbRbu,&pIter->pSelect,pz,zSql);
+        }else{
+          sqlite3_free(zSql);
+        }
+      }
+
+      sqlite3_free(zImposterCols);
+      sqlite3_free(zImposterPK);
+      sqlite3_free(zWhere);
+      sqlite3_free(zBind);
+      sqlite3_free(zPart);
+    }else{
+      int bRbuRowid = (pIter->eType==RBU_PK_VTAB)
+                    ||(pIter->eType==RBU_PK_NONE)
+                    ||(pIter->eType==RBU_PK_EXTERNAL && rbuIsVacuum(p));
+      const char *zTbl = pIter->zTbl;       /* Table this step applies to */
+      const char *zWrite;                   /* Imposter table name */
+
+      char *zBindings = rbuObjIterGetBindlist(p, pIter->nTblCol + bRbuRowid);
+      char *zWhere = rbuObjIterGetWhere(p, pIter);
+      char *zOldlist = rbuObjIterGetOldlist(p, pIter, "old");
+      char *zNewlist = rbuObjIterGetOldlist(p, pIter, "new");
+
+      zCollist = rbuObjIterGetCollist(p, pIter);
+      pIter->nCol = pIter->nTblCol;
+
+      /* Create the imposter table or tables (if required). */
+      rbuCreateImposterTable(p, pIter);
+      rbuCreateImposterTable2(p, pIter);
+      zWrite = (pIter->eType==RBU_PK_VTAB ? "" : "rbu_imp_");
+
+      /* Create the INSERT statement to write to the target PK b-tree */
+      if( p->rc==SQLITE_OK ){
+        p->rc = prepareFreeAndCollectError(p->dbMain, &pIter->pInsert, pz,
+            sqlite3_mprintf(
+              "INSERT INTO \"%s%w\"(%s%s) VALUES(%s)", 
+              zWrite, zTbl, zCollist, (bRbuRowid ? ", _rowid_" : ""), zBindings
+            )
+        );
+      }
+
+      /* Create the DELETE statement to write to the target PK b-tree.
+      ** Because it only performs INSERT operations, this is not required for
+      ** an rbu vacuum handle.  */
+      if( rbuIsVacuum(p)==0 && p->rc==SQLITE_OK ){
+        p->rc = prepareFreeAndCollectError(p->dbMain, &pIter->pDelete, pz,
+            sqlite3_mprintf(
+              "DELETE FROM \"%s%w\" WHERE %s", zWrite, zTbl, zWhere
+            )
+        );
+      }
+
+      if( rbuIsVacuum(p)==0 && pIter->abIndexed ){
+        const char *zRbuRowid = "";
+        if( pIter->eType==RBU_PK_EXTERNAL || pIter->eType==RBU_PK_NONE ){
+          zRbuRowid = ", rbu_rowid";
+        }
+
+        /* Create the rbu_tmp_xxx table and the triggers to populate it. */
+        rbuMPrintfExec(p, p->dbRbu,
+            "CREATE TABLE IF NOT EXISTS %s.'rbu_tmp_%q' AS "
+            "SELECT *%s FROM '%q' WHERE 0;"
+            , p->zStateDb, pIter->zDataTbl
+            , (pIter->eType==RBU_PK_EXTERNAL ? ", 0 AS rbu_rowid" : "")
+            , pIter->zDataTbl
+        );
+
+        rbuMPrintfExec(p, p->dbMain,
+            "CREATE TEMP TRIGGER rbu_delete_tr BEFORE DELETE ON \"%s%w\" "
+            "BEGIN "
+            "  SELECT rbu_tmp_insert(3, %s);"
+            "END;"
+
+            "CREATE TEMP TRIGGER rbu_update1_tr BEFORE UPDATE ON \"%s%w\" "
+            "BEGIN "
+            "  SELECT rbu_tmp_insert(3, %s);"
+            "END;"
+
+            "CREATE TEMP TRIGGER rbu_update2_tr AFTER UPDATE ON \"%s%w\" "
+            "BEGIN "
+            "  SELECT rbu_tmp_insert(4, %s);"
+            "END;",
+            zWrite, zTbl, zOldlist,
+            zWrite, zTbl, zOldlist,
+            zWrite, zTbl, zNewlist
+        );
+
+        if( pIter->eType==RBU_PK_EXTERNAL || pIter->eType==RBU_PK_NONE ){
+          rbuMPrintfExec(p, p->dbMain,
+              "CREATE TEMP TRIGGER rbu_insert_tr AFTER INSERT ON \"%s%w\" "
+              "BEGIN "
+              "  SELECT rbu_tmp_insert(0, %s);"
+              "END;",
+              zWrite, zTbl, zNewlist
+          );
+        }
+
+        rbuObjIterPrepareTmpInsert(p, pIter, zCollist, zRbuRowid);
+      }
+
+      /* Create the SELECT statement to read keys from data_xxx */
+      if( p->rc==SQLITE_OK ){
+        const char *zRbuRowid = "";
+        char *zStart = 0;
+        char *zOrder = 0;
+        if( bRbuRowid ){
+          zRbuRowid = rbuIsVacuum(p) ? ",_rowid_ " : ",rbu_rowid";
+        }
+
+        if( rbuIsVacuum(p) ){
+          if( nOffset ){
+            zStart = rbuVacuumTableStart(p, pIter, bRbuRowid, zWrite);
+            if( zStart ){
+              sqlite3_free(zLimit);
+              zLimit = 0;
+            }
+          }
+          if( bRbuRowid ){
+            zOrder = rbuMPrintf(p, "_rowid_");
+          }else{
+            zOrder = rbuObjIterGetPkList(p, pIter, "", ", ", "");
+          }
+        }
+
+        if( p->rc==SQLITE_OK ){
+          p->rc = prepareFreeAndCollectError(p->dbRbu, &pIter->pSelect, pz,
+              sqlite3_mprintf(
+                "SELECT %s,%s rbu_control%s FROM '%q'%s %s %s %s",
+                zCollist, 
+                (rbuIsVacuum(p) ? "0 AS " : ""),
+                zRbuRowid,
+                pIter->zDataTbl, (zStart ? zStart : ""), 
+                (zOrder ? "ORDER BY" : ""), zOrder,
+                zLimit
+              )
+          );
+        }
+        sqlite3_free(zStart);
+        sqlite3_free(zOrder);
+      }
+
+      sqlite3_free(zWhere);
+      sqlite3_free(zOldlist);
+      sqlite3_free(zNewlist);
+      sqlite3_free(zBindings);
+    }
+    sqlite3_free(zCollist);
+    sqlite3_free(zLimit);
+  }
+  
+  return p->rc;
+}
+
+/*
+** Set output variable *ppStmt to point to an UPDATE statement that may
+** be used to update the imposter table for the main table b-tree of the
+** table object that pIter currently points to, assuming that the 
+** rbu_control column of the data_xyz table contains zMask.
+** 
+** If the zMask string does not specify any columns to update, then this
+** is not an error. Output variable *ppStmt is set to NULL in this case.
+*/
+static int rbuGetUpdateStmt(
+  sqlite3rbu *p,                  /* RBU handle */
+  RbuObjIter *pIter,              /* Object iterator */
+  const char *zMask,              /* rbu_control value ('x.x.') */
+  sqlite3_stmt **ppStmt           /* OUT: UPDATE statement handle */
+){
+  RbuUpdateStmt **pp;
+  RbuUpdateStmt *pUp = 0;
+  int nUp = 0;
+
+  /* In case an error occurs */
+  *ppStmt = 0;
+
+  /* Search for an existing statement. If one is found, shift it to the front
+  ** of the LRU queue and return immediately. Otherwise, leave nUp pointing
+  ** to the number of statements currently in the cache and pUp to the
+  ** last object in the list.  */
+  for(pp=&pIter->pRbuUpdate; *pp; pp=&((*pp)->pNext)){
+    pUp = *pp;
+    if( strcmp(pUp->zMask, zMask)==0 ){
+      *pp = pUp->pNext;
+      pUp->pNext = pIter->pRbuUpdate;
+      pIter->pRbuUpdate = pUp;
+      *ppStmt = pUp->pUpdate; 
+      return SQLITE_OK;
+    }
+    nUp++;
+  }
+  assert( pUp==0 || pUp->pNext==0 );
+
+  if( nUp>=SQLITE_RBU_UPDATE_CACHESIZE ){
+    for(pp=&pIter->pRbuUpdate; *pp!=pUp; pp=&((*pp)->pNext));
+    *pp = 0;
+    sqlite3_finalize(pUp->pUpdate);
+    pUp->pUpdate = 0;
+  }else{
+    pUp = (RbuUpdateStmt*)rbuMalloc(p, sizeof(RbuUpdateStmt)+pIter->nTblCol+1);
+  }
+
+  if( pUp ){
+    char *zWhere = rbuObjIterGetWhere(p, pIter);
+    char *zSet = rbuObjIterGetSetlist(p, pIter, zMask);
+    char *zUpdate = 0;
+
+    pUp->zMask = (char*)&pUp[1];
+    memcpy(pUp->zMask, zMask, pIter->nTblCol);
+    pUp->pNext = pIter->pRbuUpdate;
+    pIter->pRbuUpdate = pUp;
+
+    if( zSet ){
+      const char *zPrefix = "";
+
+      if( pIter->eType!=RBU_PK_VTAB ) zPrefix = "rbu_imp_";
+      zUpdate = sqlite3_mprintf("UPDATE \"%s%w\" SET %s WHERE %s", 
+          zPrefix, pIter->zTbl, zSet, zWhere
+      );
+      p->rc = prepareFreeAndCollectError(
+          p->dbMain, &pUp->pUpdate, &p->zErrmsg, zUpdate
+      );
+      *ppStmt = pUp->pUpdate;
+    }
+    sqlite3_free(zWhere);
+    sqlite3_free(zSet);
+  }
+
+  return p->rc;
+}
+
+static sqlite3 *rbuOpenDbhandle(
+  sqlite3rbu *p, 
+  const char *zName, 
+  int bUseVfs
+){
+  sqlite3 *db = 0;
+  if( p->rc==SQLITE_OK ){
+    const int flags = SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE|SQLITE_OPEN_URI;
+    p->rc = sqlite3_open_v2(zName, &db, flags, bUseVfs ? p->zVfsName : 0);
+    if( p->rc ){
+      p->zErrmsg = sqlite3_mprintf("%s", sqlite3_errmsg(db));
+      sqlite3_close(db);
+      db = 0;
+    }
+  }
+  return db;
+}
+
+/*
+** Free an RbuState object allocated by rbuLoadState().
+*/
+static void rbuFreeState(RbuState *p){
+  if( p ){
+    sqlite3_free(p->zTbl);
+    sqlite3_free(p->zDataTbl);
+    sqlite3_free(p->zIdx);
+    sqlite3_free(p);
+  }
+}
+
+/*
+** Allocate an RbuState object and load the contents of the rbu_state 
+** table into it. Return a pointer to the new object. It is the 
+** responsibility of the caller to eventually free the object using
+** sqlite3_free().
+**
+** If an error occurs, leave an error code and message in the rbu handle
+** and return NULL.
+*/
+static RbuState *rbuLoadState(sqlite3rbu *p){
+  RbuState *pRet = 0;
+  sqlite3_stmt *pStmt = 0;
+  int rc;
+  int rc2;
+
+  pRet = (RbuState*)rbuMalloc(p, sizeof(RbuState));
+  if( pRet==0 ) return 0;
+
+  rc = prepareFreeAndCollectError(p->dbRbu, &pStmt, &p->zErrmsg, 
+      sqlite3_mprintf("SELECT k, v FROM %s.rbu_state", p->zStateDb)
+  );
+  while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pStmt) ){
+    switch( sqlite3_column_int(pStmt, 0) ){
+      case RBU_STATE_STAGE:
+        pRet->eStage = sqlite3_column_int(pStmt, 1);
+        if( pRet->eStage!=RBU_STAGE_OAL
+         && pRet->eStage!=RBU_STAGE_MOVE
+         && pRet->eStage!=RBU_STAGE_CKPT
+        ){
+          p->rc = SQLITE_CORRUPT;
+        }
+        break;
+
+      case RBU_STATE_TBL:
+        pRet->zTbl = rbuStrndup((char*)sqlite3_column_text(pStmt, 1), &rc);
+        break;
+
+      case RBU_STATE_IDX:
+        pRet->zIdx = rbuStrndup((char*)sqlite3_column_text(pStmt, 1), &rc);
+        break;
+
+      case RBU_STATE_ROW:
+        pRet->nRow = sqlite3_column_int(pStmt, 1);
+        break;
+
+      case RBU_STATE_PROGRESS:
+        pRet->nProgress = sqlite3_column_int64(pStmt, 1);
+        break;
+
+      case RBU_STATE_CKPT:
+        pRet->iWalCksum = sqlite3_column_int64(pStmt, 1);
+        break;
+
+      case RBU_STATE_COOKIE:
+        pRet->iCookie = (u32)sqlite3_column_int64(pStmt, 1);
+        break;
+
+      case RBU_STATE_OALSZ:
+        pRet->iOalSz = sqlite3_column_int64(pStmt, 1);
+        break;
+
+      case RBU_STATE_PHASEONESTEP:
+        pRet->nPhaseOneStep = sqlite3_column_int64(pStmt, 1);
+        break;
+
+      case RBU_STATE_DATATBL:
+        pRet->zDataTbl = rbuStrndup((char*)sqlite3_column_text(pStmt, 1), &rc);
+        break;
+
+      default:
+        rc = SQLITE_CORRUPT;
+        break;
+    }
+  }
+  rc2 = sqlite3_finalize(pStmt);
+  if( rc==SQLITE_OK ) rc = rc2;
+
+  p->rc = rc;
+  return pRet;
+}
+
+
+/*
+** Open the database handle and attach the RBU database as "rbu". If an
+** error occurs, leave an error code and message in the RBU handle.
+**
+** If argument dbMain is not NULL, then it is a database handle already
+** open on the target database. Use this handle instead of opening a new
+** one.
+*/
+static void rbuOpenDatabase(sqlite3rbu *p, sqlite3 *dbMain, int *pbRetry){
+  assert( p->rc || (p->dbMain==0 && p->dbRbu==0) );
+  assert( p->rc || rbuIsVacuum(p) || p->zTarget!=0 );
+  assert( dbMain==0 || rbuIsVacuum(p)==0 );
+
+  /* Open the RBU database */
+  p->dbRbu = rbuOpenDbhandle(p, p->zRbu, 1);
+  p->dbMain = dbMain;
+
+  if( p->rc==SQLITE_OK && rbuIsVacuum(p) ){
+    sqlite3_file_control(p->dbRbu, "main", SQLITE_FCNTL_RBUCNT, (void*)p);
+    if( p->zState==0 ){
+      const char *zFile = sqlite3_db_filename(p->dbRbu, "main");
+      p->zState = rbuMPrintf(p, "file:///%s-vacuum?modeof=%s", zFile, zFile);
+    }
+  }
+
+  /* If using separate RBU and state databases, attach the state database to
+  ** the RBU db handle now.  */
+  if( p->zState ){
+    rbuMPrintfExec(p, p->dbRbu, "ATTACH %Q AS stat", p->zState);
+    memcpy(p->zStateDb, "stat", 4);
+  }else{
+    memcpy(p->zStateDb, "main", 4);
+  }
+
+#if 0
+  if( p->rc==SQLITE_OK && rbuIsVacuum(p) ){
+    p->rc = sqlite3_exec(p->dbRbu, "BEGIN", 0, 0, 0);
+  }
+#endif
+
+  /* If it has not already been created, create the rbu_state table */
+  rbuMPrintfExec(p, p->dbRbu, RBU_CREATE_STATE, p->zStateDb);
+
+#if 0
+  if( rbuIsVacuum(p) ){
+    if( p->rc==SQLITE_OK ){
+      int rc2;
+      int bOk = 0;
+      sqlite3_stmt *pCnt = 0;
+      p->rc = prepareAndCollectError(p->dbRbu, &pCnt, &p->zErrmsg,
+          "SELECT count(*) FROM stat.sqlite_schema"
+      );
+      if( p->rc==SQLITE_OK 
+       && sqlite3_step(pCnt)==SQLITE_ROW
+       && 1==sqlite3_column_int(pCnt, 0)
+      ){
+        bOk = 1;
+      }
+      rc2 = sqlite3_finalize(pCnt);
+      if( p->rc==SQLITE_OK ) p->rc = rc2;
+
+      if( p->rc==SQLITE_OK && bOk==0 ){
+        p->rc = SQLITE_ERROR;
+        p->zErrmsg = sqlite3_mprintf("invalid state database");
+      }
+    
+      if( p->rc==SQLITE_OK ){
+        p->rc = sqlite3_exec(p->dbRbu, "COMMIT", 0, 0, 0);
+      }
+    }
+  }
+#endif
+
+  if( p->rc==SQLITE_OK && rbuIsVacuum(p) ){
+    int bOpen = 0;
+    int rc;
+    p->nRbu = 0;
+    p->pRbuFd = 0;
+    rc = sqlite3_file_control(p->dbRbu, "main", SQLITE_FCNTL_RBUCNT, (void*)p);
+    if( rc!=SQLITE_NOTFOUND ) p->rc = rc;
+    if( p->eStage>=RBU_STAGE_MOVE ){
+      bOpen = 1;
+    }else{
+      RbuState *pState = rbuLoadState(p);
+      if( pState ){
+        bOpen = (pState->eStage>=RBU_STAGE_MOVE);
+        rbuFreeState(pState);
+      }
+    }
+    if( bOpen ) p->dbMain = rbuOpenDbhandle(p, p->zRbu, p->nRbu<=1);
+  }
+
+  p->eStage = 0;
+  if( p->rc==SQLITE_OK && p->dbMain==0 ){
+    if( !rbuIsVacuum(p) ){
+      p->dbMain = rbuOpenDbhandle(p, p->zTarget, 1);
+    }else if( p->pRbuFd->pWalFd ){
+      if( pbRetry ){
+        p->pRbuFd->bNolock = 0;
+        sqlite3_close(p->dbRbu);
+        sqlite3_close(p->dbMain);
+        p->dbMain = 0;
+        p->dbRbu = 0;
+        *pbRetry = 1;
+        return;
+      }
+      p->rc = SQLITE_ERROR;
+      p->zErrmsg = sqlite3_mprintf("cannot vacuum wal mode database");
+    }else{
+      char *zTarget;
+      char *zExtra = 0;
+      if( strlen(p->zRbu)>=5 && 0==memcmp("file:", p->zRbu, 5) ){
+        zExtra = &p->zRbu[5];
+        while( *zExtra ){
+          if( *zExtra++=='?' ) break;
+        }
+        if( *zExtra=='\0' ) zExtra = 0;
+      }
+
+      zTarget = sqlite3_mprintf("file:%s-vactmp?rbu_memory=1%s%s", 
+          sqlite3_db_filename(p->dbRbu, "main"),
+          (zExtra==0 ? "" : "&"), (zExtra==0 ? "" : zExtra)
+      );
+
+      if( zTarget==0 ){
+        p->rc = SQLITE_NOMEM;
+        return;
+      }
+      p->dbMain = rbuOpenDbhandle(p, zTarget, p->nRbu<=1);
+      sqlite3_free(zTarget);
+    }
+  }
+
+  if( p->rc==SQLITE_OK ){
+    p->rc = sqlite3_create_function(p->dbMain, 
+        "rbu_tmp_insert", -1, SQLITE_UTF8, (void*)p, rbuTmpInsertFunc, 0, 0
+    );
+  }
+
+  if( p->rc==SQLITE_OK ){
+    p->rc = sqlite3_create_function(p->dbMain, 
+        "rbu_fossil_delta", 2, SQLITE_UTF8, 0, rbuFossilDeltaFunc, 0, 0
+    );
+  }
+
+  if( p->rc==SQLITE_OK ){
+    p->rc = sqlite3_create_function(p->dbRbu, 
+        "rbu_target_name", -1, SQLITE_UTF8, (void*)p, rbuTargetNameFunc, 0, 0
+    );
+  }
+
+  if( p->rc==SQLITE_OK ){
+    p->rc = sqlite3_file_control(p->dbMain, "main", SQLITE_FCNTL_RBU, (void*)p);
+  }
+  rbuMPrintfExec(p, p->dbMain, "SELECT * FROM sqlite_schema");
+
+  /* Mark the database file just opened as an RBU target database. If 
+  ** this call returns SQLITE_NOTFOUND, then the RBU vfs is not in use.
+  ** This is an error.  */
+  if( p->rc==SQLITE_OK ){
+    p->rc = sqlite3_file_control(p->dbMain, "main", SQLITE_FCNTL_RBU, (void*)p);
+  }
+
+  if( p->rc==SQLITE_NOTFOUND ){
+    p->rc = SQLITE_ERROR;
+    p->zErrmsg = sqlite3_mprintf("rbu vfs not found");
+  }
+}
+
+/*
+** This routine is a copy of the sqlite3FileSuffix3() routine from the core.
+** It is a no-op unless SQLITE_ENABLE_8_3_NAMES is defined.
+**
+** If SQLITE_ENABLE_8_3_NAMES is set at compile-time and if the database
+** filename in zBaseFilename is a URI with the "8_3_names=1" parameter and
+** if filename in z[] has a suffix (a.k.a. "extension") that is longer than
+** three characters, then shorten the suffix on z[] to be the last three
+** characters of the original suffix.
+**
+** If SQLITE_ENABLE_8_3_NAMES is set to 2 at compile-time, then always
+** do the suffix shortening regardless of URI parameter.
+**
+** Examples:
+**
+**     test.db-journal    =>   test.nal
+**     test.db-wal        =>   test.wal
+**     test.db-shm        =>   test.shm
+**     test.db-mj7f3319fa =>   test.9fa
+*/
+static void rbuFileSuffix3(const char *zBase, char *z){
+#ifdef SQLITE_ENABLE_8_3_NAMES
+#if SQLITE_ENABLE_8_3_NAMES<2
+  if( sqlite3_uri_boolean(zBase, "8_3_names", 0) )
+#endif
+  {
+    int i, sz;
+    sz = (int)strlen(z)&0xffffff;
+    for(i=sz-1; i>0 && z[i]!='/' && z[i]!='.'; i--){}
+    if( z[i]=='.' && sz>i+4 ) memmove(&z[i+1], &z[sz-3], 4);
+  }
+#else
+  UNUSED_PARAMETER2(zBase,z);
+#endif
+}
+
+/*
+** Return the current wal-index header checksum for the target database 
+** as a 64-bit integer.
+**
+** The checksum is store in the first page of xShmMap memory as an 8-byte 
+** blob starting at byte offset 40.
+*/
+static i64 rbuShmChecksum(sqlite3rbu *p){
+  i64 iRet = 0;
+  if( p->rc==SQLITE_OK ){
+    sqlite3_file *pDb = p->pTargetFd->pReal;
+    u32 volatile *ptr;
+    p->rc = pDb->pMethods->xShmMap(pDb, 0, 32*1024, 0, (void volatile**)&ptr);
+    if( p->rc==SQLITE_OK ){
+      iRet = (i64)(((u64)ptr[10] << 32) + ptr[11]);
+    }
+  }
+  return iRet;
+}
+
+/*
+** This function is called as part of initializing or reinitializing an
+** incremental checkpoint. 
+**
+** It populates the sqlite3rbu.aFrame[] array with the set of 
+** (wal frame -> db page) copy operations required to checkpoint the 
+** current wal file, and obtains the set of shm locks required to safely 
+** perform the copy operations directly on the file-system.
+**
+** If argument pState is not NULL, then the incremental checkpoint is
+** being resumed. In this case, if the checksum of the wal-index-header
+** following recovery is not the same as the checksum saved in the RbuState
+** object, then the rbu handle is set to DONE state. This occurs if some
+** other client appends a transaction to the wal file in the middle of
+** an incremental checkpoint.
+*/
+static void rbuSetupCheckpoint(sqlite3rbu *p, RbuState *pState){
+
+  /* If pState is NULL, then the wal file may not have been opened and
+  ** recovered. Running a read-statement here to ensure that doing so
+  ** does not interfere with the "capture" process below.  */
+  if( pState==0 ){
+    p->eStage = 0;
+    if( p->rc==SQLITE_OK ){
+      p->rc = sqlite3_exec(p->dbMain, "SELECT * FROM sqlite_schema", 0, 0, 0);
+    }
+  }
+
+  /* Assuming no error has occurred, run a "restart" checkpoint with the
+  ** sqlite3rbu.eStage variable set to CAPTURE. This turns on the following
+  ** special behaviour in the rbu VFS:
+  **
+  **   * If the exclusive shm WRITER or READ0 lock cannot be obtained,
+  **     the checkpoint fails with SQLITE_BUSY (normally SQLite would
+  **     proceed with running a passive checkpoint instead of failing).
+  **
+  **   * Attempts to read from the *-wal file or write to the database file
+  **     do not perform any IO. Instead, the frame/page combinations that
+  **     would be read/written are recorded in the sqlite3rbu.aFrame[]
+  **     array.
+  **
+  **   * Calls to xShmLock(UNLOCK) to release the exclusive shm WRITER, 
+  **     READ0 and CHECKPOINT locks taken as part of the checkpoint are
+  **     no-ops. These locks will not be released until the connection
+  **     is closed.
+  **
+  **   * Attempting to xSync() the database file causes an SQLITE_NOTICE 
+  **     error.
+  **
+  ** As a result, unless an error (i.e. OOM or SQLITE_BUSY) occurs, the
+  ** checkpoint below fails with SQLITE_NOTICE, and leaves the aFrame[]
+  ** array populated with a set of (frame -> page) mappings. Because the 
+  ** WRITER, CHECKPOINT and READ0 locks are still held, it is safe to copy 
+  ** data from the wal file into the database file according to the 
+  ** contents of aFrame[].
+  */
+  if( p->rc==SQLITE_OK ){
+    int rc2;
+    p->eStage = RBU_STAGE_CAPTURE;
+    rc2 = sqlite3_exec(p->dbMain, "PRAGMA main.wal_checkpoint=restart", 0, 0,0);
+    if( rc2!=SQLITE_NOTICE ) p->rc = rc2;
+  }
+
+  if( p->rc==SQLITE_OK && p->nFrame>0 ){
+    p->eStage = RBU_STAGE_CKPT;
+    p->nStep = (pState ? pState->nRow : 0);
+    p->aBuf = rbuMalloc(p, p->pgsz);
+    p->iWalCksum = rbuShmChecksum(p);
+  }
+
+  if( p->rc==SQLITE_OK ){
+    if( p->nFrame==0 || (pState && pState->iWalCksum!=p->iWalCksum) ){
+      p->rc = SQLITE_DONE;
+      p->eStage = RBU_STAGE_DONE;
+    }else{
+      int nSectorSize;
+      sqlite3_file *pDb = p->pTargetFd->pReal;
+      sqlite3_file *pWal = p->pTargetFd->pWalFd->pReal;
+      assert( p->nPagePerSector==0 );
+      nSectorSize = pDb->pMethods->xSectorSize(pDb);
+      if( nSectorSize>p->pgsz ){
+        p->nPagePerSector = nSectorSize / p->pgsz;
+      }else{
+        p->nPagePerSector = 1;
+      }
+
+      /* Call xSync() on the wal file. This causes SQLite to sync the 
+      ** directory in which the target database and the wal file reside, in 
+      ** case it has not been synced since the rename() call in 
+      ** rbuMoveOalFile(). */
+      p->rc = pWal->pMethods->xSync(pWal, SQLITE_SYNC_NORMAL);
+    }
+  }
+}
+
+/*
+** Called when iAmt bytes are read from offset iOff of the wal file while
+** the rbu object is in capture mode. Record the frame number of the frame
+** being read in the aFrame[] array.
+*/
+static int rbuCaptureWalRead(sqlite3rbu *pRbu, i64 iOff, int iAmt){
+  const u32 mReq = (1<<WAL_LOCK_WRITE)|(1<<WAL_LOCK_CKPT)|(1<<WAL_LOCK_READ0);
+  u32 iFrame;
+
+  if( pRbu->mLock!=mReq ){
+    pRbu->rc = SQLITE_BUSY;
+    return SQLITE_NOTICE_RBU;
+  }
+
+  pRbu->pgsz = iAmt;
+  if( pRbu->nFrame==pRbu->nFrameAlloc ){
+    int nNew = (pRbu->nFrameAlloc ? pRbu->nFrameAlloc : 64) * 2;
+    RbuFrame *aNew;
+    aNew = (RbuFrame*)sqlite3_realloc64(pRbu->aFrame, nNew * sizeof(RbuFrame));
+    if( aNew==0 ) return SQLITE_NOMEM;
+    pRbu->aFrame = aNew;
+    pRbu->nFrameAlloc = nNew;
+  }
+
+  iFrame = (u32)((iOff-32) / (i64)(iAmt+24)) + 1;
+  if( pRbu->iMaxFrame<iFrame ) pRbu->iMaxFrame = iFrame;
+  pRbu->aFrame[pRbu->nFrame].iWalFrame = iFrame;
+  pRbu->aFrame[pRbu->nFrame].iDbPage = 0;
+  pRbu->nFrame++;
+  return SQLITE_OK;
+}
+
+/*
+** Called when a page of data is written to offset iOff of the database
+** file while the rbu handle is in capture mode. Record the page number 
+** of the page being written in the aFrame[] array.
+*/
+static int rbuCaptureDbWrite(sqlite3rbu *pRbu, i64 iOff){
+  pRbu->aFrame[pRbu->nFrame-1].iDbPage = (u32)(iOff / pRbu->pgsz) + 1;
+  return SQLITE_OK;
+}
+
+/*
+** This is called as part of an incremental checkpoint operation. Copy
+** a single frame of data from the wal file into the database file, as
+** indicated by the RbuFrame object.
+*/
+static void rbuCheckpointFrame(sqlite3rbu *p, RbuFrame *pFrame){
+  sqlite3_file *pWal = p->pTargetFd->pWalFd->pReal;
+  sqlite3_file *pDb = p->pTargetFd->pReal;
+  i64 iOff;
+
+  assert( p->rc==SQLITE_OK );
+  iOff = (i64)(pFrame->iWalFrame-1) * (p->pgsz + 24) + 32 + 24;
+  p->rc = pWal->pMethods->xRead(pWal, p->aBuf, p->pgsz, iOff);
+  if( p->rc ) return;
+
+  iOff = (i64)(pFrame->iDbPage-1) * p->pgsz;
+  p->rc = pDb->pMethods->xWrite(pDb, p->aBuf, p->pgsz, iOff);
+}
+
+/*
+** This value is copied from the definition of ZIPVFS_CTRL_FILE_POINTER
+** in zipvfs.h. 
+*/
+#define RBU_ZIPVFS_CTRL_FILE_POINTER 230439
+
+/*
+** Take an EXCLUSIVE lock on the database file. Return SQLITE_OK if
+** successful, or an SQLite error code otherwise.
+*/
+static int rbuLockDatabase(sqlite3 *db){
+  int rc = SQLITE_OK;
+  sqlite3_file *fd = 0;
+
+  sqlite3_file_control(db, "main", RBU_ZIPVFS_CTRL_FILE_POINTER, &fd);
+  if( fd ){
+    sqlite3_file_control(db, "main", SQLITE_FCNTL_FILE_POINTER, &fd);
+    rc = fd->pMethods->xLock(fd, SQLITE_LOCK_SHARED);
+    if( rc==SQLITE_OK ){
+      rc = fd->pMethods->xUnlock(fd, SQLITE_LOCK_NONE);
+    }
+    sqlite3_file_control(db, "main", RBU_ZIPVFS_CTRL_FILE_POINTER, &fd);
+  }else{
+    sqlite3_file_control(db, "main", SQLITE_FCNTL_FILE_POINTER, &fd);
+  }
+
+  if( rc==SQLITE_OK && fd->pMethods ){
+    rc = fd->pMethods->xLock(fd, SQLITE_LOCK_SHARED);
+    if( rc==SQLITE_OK ){
+      rc = fd->pMethods->xLock(fd, SQLITE_LOCK_EXCLUSIVE);
+    }
+  }
+  return rc;
+}
+
+/*
+** Return true if the database handle passed as the only argument
+** was opened with the rbu_exclusive_checkpoint=1 URI parameter
+** specified. Or false otherwise.
+*/
+static int rbuExclusiveCheckpoint(sqlite3 *db){
+  const char *zUri = sqlite3_db_filename(db, 0);
+  return sqlite3_uri_boolean(zUri, RBU_EXCLUSIVE_CHECKPOINT, 0);
+}
+
+#if defined(_WIN32_WCE)
+static LPWSTR rbuWinUtf8ToUnicode(const char *zFilename){
+  int nChar;
+  LPWSTR zWideFilename;
+
+  nChar = MultiByteToWideChar(CP_UTF8, 0, zFilename, -1, NULL, 0);
+  if( nChar==0 ){
+    return 0;
+  }
+  zWideFilename = sqlite3_malloc64( nChar*sizeof(zWideFilename[0]) );
+  if( zWideFilename==0 ){
+    return 0;
+  }
+  memset(zWideFilename, 0, nChar*sizeof(zWideFilename[0]));
+  nChar = MultiByteToWideChar(CP_UTF8, 0, zFilename, -1, zWideFilename,
+                                nChar);
+  if( nChar==0 ){
+    sqlite3_free(zWideFilename);
+    zWideFilename = 0;
+  }
+  return zWideFilename;
+}
+#endif
+
+/*
+** The RBU handle is currently in RBU_STAGE_OAL state, with a SHARED lock
+** on the database file. This proc moves the *-oal file to the *-wal path,
+** then reopens the database file (this time in vanilla, non-oal, WAL mode).
+** If an error occurs, leave an error code and error message in the rbu 
+** handle.
+*/
+static void rbuMoveOalFile(sqlite3rbu *p){
+  const char *zBase = sqlite3_db_filename(p->dbMain, "main");
+  const char *zMove = zBase;
+  char *zOal;
+  char *zWal;
+
+  if( rbuIsVacuum(p) ){
+    zMove = sqlite3_db_filename(p->dbRbu, "main");
+  }
+  zOal = sqlite3_mprintf("%s-oal", zMove);
+  zWal = sqlite3_mprintf("%s-wal", zMove);
+
+  assert( p->eStage==RBU_STAGE_MOVE );
+  assert( p->rc==SQLITE_OK && p->zErrmsg==0 );
+  if( zWal==0 || zOal==0 ){
+    p->rc = SQLITE_NOMEM;
+  }else{
+    /* Move the *-oal file to *-wal. At this point connection p->db is
+    ** holding a SHARED lock on the target database file (because it is
+    ** in WAL mode). So no other connection may be writing the db. 
+    **
+    ** In order to ensure that there are no database readers, an EXCLUSIVE
+    ** lock is obtained here before the *-oal is moved to *-wal.
+    */
+    sqlite3 *dbMain = 0;
+    rbuFileSuffix3(zBase, zWal);
+    rbuFileSuffix3(zBase, zOal);
+
+    /* Re-open the databases. */
+    rbuObjIterFinalize(&p->objiter);
+    sqlite3_close(p->dbRbu);
+    sqlite3_close(p->dbMain);
+    p->dbMain = 0;
+    p->dbRbu = 0;
+
+    dbMain = rbuOpenDbhandle(p, p->zTarget, 1);
+    if( dbMain ){
+      assert( p->rc==SQLITE_OK );
+      p->rc = rbuLockDatabase(dbMain);
+    }
+
+    if( p->rc==SQLITE_OK ){
+      p->rc = p->xRename(p->pRenameArg, zOal, zWal);
+    }
+
+    if( p->rc!=SQLITE_OK 
+     || rbuIsVacuum(p) 
+     || rbuExclusiveCheckpoint(dbMain)==0 
+    ){
+      sqlite3_close(dbMain);
+      dbMain = 0;
+    }
+
+    if( p->rc==SQLITE_OK ){
+      rbuOpenDatabase(p, dbMain, 0);
+      rbuSetupCheckpoint(p, 0);
+    }
+  }
+
+  sqlite3_free(zWal);
+  sqlite3_free(zOal);
+}
+
+/*
+** The SELECT statement iterating through the keys for the current object
+** (p->objiter.pSelect) currently points to a valid row. This function
+** determines the type of operation requested by this row and returns
+** one of the following values to indicate the result:
+**
+**     * RBU_INSERT
+**     * RBU_DELETE
+**     * RBU_IDX_DELETE
+**     * RBU_UPDATE
+**
+** If RBU_UPDATE is returned, then output variable *pzMask is set to
+** point to the text value indicating the columns to update.
+**
+** If the rbu_control field contains an invalid value, an error code and
+** message are left in the RBU handle and zero returned.
+*/
+static int rbuStepType(sqlite3rbu *p, const char **pzMask){
+  int iCol = p->objiter.nCol;     /* Index of rbu_control column */
+  int res = 0;                    /* Return value */
+
+  switch( sqlite3_column_type(p->objiter.pSelect, iCol) ){
+    case SQLITE_INTEGER: {
+      int iVal = sqlite3_column_int(p->objiter.pSelect, iCol);
+      switch( iVal ){
+        case 0: res = RBU_INSERT;     break;
+        case 1: res = RBU_DELETE;     break;
+        case 2: res = RBU_REPLACE;    break;
+        case 3: res = RBU_IDX_DELETE; break;
+        case 4: res = RBU_IDX_INSERT; break;
+      }
+      break;
+    }
+
+    case SQLITE_TEXT: {
+      const unsigned char *z = sqlite3_column_text(p->objiter.pSelect, iCol);
+      if( z==0 ){
+        p->rc = SQLITE_NOMEM;
+      }else{
+        *pzMask = (const char*)z;
+      }
+      res = RBU_UPDATE;
+
+      break;
+    }
+
+    default:
+      break;
+  }
+
+  if( res==0 ){
+    rbuBadControlError(p);
+  }
+  return res;
+}
+
+#ifdef SQLITE_DEBUG
+/*
+** Assert that column iCol of statement pStmt is named zName.
+*/
+static void assertColumnName(sqlite3_stmt *pStmt, int iCol, const char *zName){
+  const char *zCol = sqlite3_column_name(pStmt, iCol);
+  assert( 0==sqlite3_stricmp(zName, zCol) );
+}
+#else
+# define assertColumnName(x,y,z)
+#endif
+
+/*
+** Argument eType must be one of RBU_INSERT, RBU_DELETE, RBU_IDX_INSERT or
+** RBU_IDX_DELETE. This function performs the work of a single
+** sqlite3rbu_step() call for the type of operation specified by eType.
+*/
+static void rbuStepOneOp(sqlite3rbu *p, int eType){
+  RbuObjIter *pIter = &p->objiter;
+  sqlite3_value *pVal;
+  sqlite3_stmt *pWriter;
+  int i;
+
+  assert( p->rc==SQLITE_OK );
+  assert( eType!=RBU_DELETE || pIter->zIdx==0 );
+  assert( eType==RBU_DELETE || eType==RBU_IDX_DELETE
+       || eType==RBU_INSERT || eType==RBU_IDX_INSERT
+  );
+
+  /* If this is a delete, decrement nPhaseOneStep by nIndex. If the DELETE
+  ** statement below does actually delete a row, nPhaseOneStep will be
+  ** incremented by the same amount when SQL function rbu_tmp_insert()
+  ** is invoked by the trigger.  */
+  if( eType==RBU_DELETE ){
+    p->nPhaseOneStep -= p->objiter.nIndex;
+  }
+
+  if( eType==RBU_IDX_DELETE || eType==RBU_DELETE ){
+    pWriter = pIter->pDelete;
+  }else{
+    pWriter = pIter->pInsert;
+  }
+
+  for(i=0; i<pIter->nCol; i++){
+    /* If this is an INSERT into a table b-tree and the table has an
+    ** explicit INTEGER PRIMARY KEY, check that this is not an attempt
+    ** to write a NULL into the IPK column. That is not permitted.  */
+    if( eType==RBU_INSERT 
+     && pIter->zIdx==0 && pIter->eType==RBU_PK_IPK && pIter->abTblPk[i] 
+     && sqlite3_column_type(pIter->pSelect, i)==SQLITE_NULL
+    ){
+      p->rc = SQLITE_MISMATCH;
+      p->zErrmsg = sqlite3_mprintf("datatype mismatch");
+      return;
+    }
+
+    if( eType==RBU_DELETE && pIter->abTblPk[i]==0 ){
+      continue;
+    }
+
+    pVal = sqlite3_column_value(pIter->pSelect, i);
+    p->rc = sqlite3_bind_value(pWriter, i+1, pVal);
+    if( p->rc ) return;
+  }
+  if( pIter->zIdx==0 ){
+    if( pIter->eType==RBU_PK_VTAB 
+     || pIter->eType==RBU_PK_NONE 
+     || (pIter->eType==RBU_PK_EXTERNAL && rbuIsVacuum(p)) 
+    ){
+      /* For a virtual table, or a table with no primary key, the 
+      ** SELECT statement is:
+      **
+      **   SELECT <cols>, rbu_control, rbu_rowid FROM ....
+      **
+      ** Hence column_value(pIter->nCol+1).
+      */
+      assertColumnName(pIter->pSelect, pIter->nCol+1, 
+          rbuIsVacuum(p) ? "rowid" : "rbu_rowid"
+      );
+      pVal = sqlite3_column_value(pIter->pSelect, pIter->nCol+1);
+      p->rc = sqlite3_bind_value(pWriter, pIter->nCol+1, pVal);
+    }
+  }
+  if( p->rc==SQLITE_OK ){
+    sqlite3_step(pWriter);
+    p->rc = resetAndCollectError(pWriter, &p->zErrmsg);
+  }
+}
+
+/*
+** This function does the work for an sqlite3rbu_step() call.
+**
+** The object-iterator (p->objiter) currently points to a valid object,
+** and the input cursor (p->objiter.pSelect) currently points to a valid
+** input row. Perform whatever processing is required and return.
+**
+** If no  error occurs, SQLITE_OK is returned. Otherwise, an error code
+** and message is left in the RBU handle and a copy of the error code
+** returned.
+*/
+static int rbuStep(sqlite3rbu *p){
+  RbuObjIter *pIter = &p->objiter;
+  const char *zMask = 0;
+  int eType = rbuStepType(p, &zMask);
+
+  if( eType ){
+    assert( eType==RBU_INSERT     || eType==RBU_DELETE
+         || eType==RBU_REPLACE    || eType==RBU_IDX_DELETE
+         || eType==RBU_IDX_INSERT || eType==RBU_UPDATE
+    );
+    assert( eType!=RBU_UPDATE || pIter->zIdx==0 );
+
+    if( pIter->zIdx==0 && (eType==RBU_IDX_DELETE || eType==RBU_IDX_INSERT) ){
+      rbuBadControlError(p);
+    }
+    else if( eType==RBU_REPLACE ){
+      if( pIter->zIdx==0 ){
+        p->nPhaseOneStep += p->objiter.nIndex;
+        rbuStepOneOp(p, RBU_DELETE);
+      }
+      if( p->rc==SQLITE_OK ) rbuStepOneOp(p, RBU_INSERT);
+    }
+    else if( eType!=RBU_UPDATE ){
+      rbuStepOneOp(p, eType);
+    }
+    else{
+      sqlite3_value *pVal;
+      sqlite3_stmt *pUpdate = 0;
+      assert( eType==RBU_UPDATE );
+      p->nPhaseOneStep -= p->objiter.nIndex;
+      rbuGetUpdateStmt(p, pIter, zMask, &pUpdate);
+      if( pUpdate ){
+        int i;
+        for(i=0; p->rc==SQLITE_OK && i<pIter->nCol; i++){
+          char c = zMask[pIter->aiSrcOrder[i]];
+          pVal = sqlite3_column_value(pIter->pSelect, i);
+          if( pIter->abTblPk[i] || c!='.' ){
+            p->rc = sqlite3_bind_value(pUpdate, i+1, pVal);
+          }
+        }
+        if( p->rc==SQLITE_OK 
+         && (pIter->eType==RBU_PK_VTAB || pIter->eType==RBU_PK_NONE) 
+        ){
+          /* Bind the rbu_rowid value to column _rowid_ */
+          assertColumnName(pIter->pSelect, pIter->nCol+1, "rbu_rowid");
+          pVal = sqlite3_column_value(pIter->pSelect, pIter->nCol+1);
+          p->rc = sqlite3_bind_value(pUpdate, pIter->nCol+1, pVal);
+        }
+        if( p->rc==SQLITE_OK ){
+          sqlite3_step(pUpdate);
+          p->rc = resetAndCollectError(pUpdate, &p->zErrmsg);
+        }
+      }
+    }
+  }
+  return p->rc;
+}
+
+/*
+** Increment the schema cookie of the main database opened by p->dbMain.
+**
+** Or, if this is an RBU vacuum, set the schema cookie of the main db
+** opened by p->dbMain to one more than the schema cookie of the main
+** db opened by p->dbRbu.
+*/
+static void rbuIncrSchemaCookie(sqlite3rbu *p){
+  if( p->rc==SQLITE_OK ){
+    sqlite3 *dbread = (rbuIsVacuum(p) ? p->dbRbu : p->dbMain);
+    int iCookie = 1000000;
+    sqlite3_stmt *pStmt;
+
+    p->rc = prepareAndCollectError(dbread, &pStmt, &p->zErrmsg, 
+        "PRAGMA schema_version"
+    );
+    if( p->rc==SQLITE_OK ){
+      /* Coverage: it may be that this sqlite3_step() cannot fail. There
+      ** is already a transaction open, so the prepared statement cannot
+      ** throw an SQLITE_SCHEMA exception. The only database page the
+      ** statement reads is page 1, which is guaranteed to be in the cache.
+      ** And no memory allocations are required.  */
+      if( SQLITE_ROW==sqlite3_step(pStmt) ){
+        iCookie = sqlite3_column_int(pStmt, 0);
+      }
+      rbuFinalize(p, pStmt);
+    }
+    if( p->rc==SQLITE_OK ){
+      rbuMPrintfExec(p, p->dbMain, "PRAGMA schema_version = %d", iCookie+1);
+    }
+  }
+}
+
+/*
+** Update the contents of the rbu_state table within the rbu database. The
+** value stored in the RBU_STATE_STAGE column is eStage. All other values
+** are determined by inspecting the rbu handle passed as the first argument.
+*/
+static void rbuSaveState(sqlite3rbu *p, int eStage){
+  if( p->rc==SQLITE_OK || p->rc==SQLITE_DONE ){
+    sqlite3_stmt *pInsert = 0;
+    rbu_file *pFd = (rbuIsVacuum(p) ? p->pRbuFd : p->pTargetFd);
+    int rc;
+
+    assert( p->zErrmsg==0 );
+    rc = prepareFreeAndCollectError(p->dbRbu, &pInsert, &p->zErrmsg, 
+        sqlite3_mprintf(
+          "INSERT OR REPLACE INTO %s.rbu_state(k, v) VALUES "
+          "(%d, %d), "
+          "(%d, %Q), "
+          "(%d, %Q), "
+          "(%d, %d), "
+          "(%d, %lld), "
+          "(%d, %lld), "
+          "(%d, %lld), "
+          "(%d, %lld), "
+          "(%d, %lld), "
+          "(%d, %Q)  ",
+          p->zStateDb,
+          RBU_STATE_STAGE, eStage,
+          RBU_STATE_TBL, p->objiter.zTbl, 
+          RBU_STATE_IDX, p->objiter.zIdx, 
+          RBU_STATE_ROW, p->nStep, 
+          RBU_STATE_PROGRESS, p->nProgress,
+          RBU_STATE_CKPT, p->iWalCksum,
+          RBU_STATE_COOKIE, (i64)pFd->iCookie,
+          RBU_STATE_OALSZ, p->iOalSz,
+          RBU_STATE_PHASEONESTEP, p->nPhaseOneStep,
+          RBU_STATE_DATATBL, p->objiter.zDataTbl
+      )
+    );
+    assert( pInsert==0 || rc==SQLITE_OK );
+
+    if( rc==SQLITE_OK ){
+      sqlite3_step(pInsert);
+      rc = sqlite3_finalize(pInsert);
+    }
+    if( rc!=SQLITE_OK ) p->rc = rc;
+  }
+}
+
+
+/*
+** The second argument passed to this function is the name of a PRAGMA 
+** setting - "page_size", "auto_vacuum", "user_version" or "application_id".
+** This function executes the following on sqlite3rbu.dbRbu:
+**
+**   "PRAGMA main.$zPragma"
+**
+** where $zPragma is the string passed as the second argument, then
+** on sqlite3rbu.dbMain:
+**
+**   "PRAGMA main.$zPragma = $val"
+**
+** where $val is the value returned by the first PRAGMA invocation.
+**
+** In short, it copies the value  of the specified PRAGMA setting from
+** dbRbu to dbMain.
+*/
+static void rbuCopyPragma(sqlite3rbu *p, const char *zPragma){
+  if( p->rc==SQLITE_OK ){
+    sqlite3_stmt *pPragma = 0;
+    p->rc = prepareFreeAndCollectError(p->dbRbu, &pPragma, &p->zErrmsg, 
+        sqlite3_mprintf("PRAGMA main.%s", zPragma)
+    );
+    if( p->rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pPragma) ){
+      p->rc = rbuMPrintfExec(p, p->dbMain, "PRAGMA main.%s = %d",
+          zPragma, sqlite3_column_int(pPragma, 0)
+      );
+    }
+    rbuFinalize(p, pPragma);
+  }
+}
+
+/*
+** The RBU handle passed as the only argument has just been opened and 
+** the state database is empty. If this RBU handle was opened for an
+** RBU vacuum operation, create the schema in the target db.
+*/
+static void rbuCreateTargetSchema(sqlite3rbu *p){
+  sqlite3_stmt *pSql = 0;
+  sqlite3_stmt *pInsert = 0;
+
+  assert( rbuIsVacuum(p) );
+  p->rc = sqlite3_exec(p->dbMain, "PRAGMA writable_schema=1", 0,0, &p->zErrmsg);
+  if( p->rc==SQLITE_OK ){
+    p->rc = prepareAndCollectError(p->dbRbu, &pSql, &p->zErrmsg, 
+      "SELECT sql FROM sqlite_schema WHERE sql!='' AND rootpage!=0"
+      " AND name!='sqlite_sequence' "
+      " ORDER BY type DESC"
+    );
+  }
+
+  while( p->rc==SQLITE_OK && sqlite3_step(pSql)==SQLITE_ROW ){
+    const char *zSql = (const char*)sqlite3_column_text(pSql, 0);
+    p->rc = sqlite3_exec(p->dbMain, zSql, 0, 0, &p->zErrmsg);
+  }
+  rbuFinalize(p, pSql);
+  if( p->rc!=SQLITE_OK ) return;
+
+  if( p->rc==SQLITE_OK ){
+    p->rc = prepareAndCollectError(p->dbRbu, &pSql, &p->zErrmsg, 
+        "SELECT * FROM sqlite_schema WHERE rootpage=0 OR rootpage IS NULL" 
+    );
+  }
+
+  if( p->rc==SQLITE_OK ){
+    p->rc = prepareAndCollectError(p->dbMain, &pInsert, &p->zErrmsg, 
+        "INSERT INTO sqlite_schema VALUES(?,?,?,?,?)"
+    );
+  }
+
+  while( p->rc==SQLITE_OK && sqlite3_step(pSql)==SQLITE_ROW ){
+    int i;
+    for(i=0; i<5; i++){
+      sqlite3_bind_value(pInsert, i+1, sqlite3_column_value(pSql, i));
+    }
+    sqlite3_step(pInsert);
+    p->rc = sqlite3_reset(pInsert);
+  }
+  if( p->rc==SQLITE_OK ){
+    p->rc = sqlite3_exec(p->dbMain, "PRAGMA writable_schema=0",0,0,&p->zErrmsg);
+  }
+
+  rbuFinalize(p, pSql);
+  rbuFinalize(p, pInsert);
+}
+
+/*
+** Step the RBU object.
+*/
+int sqlite3rbu_step(sqlite3rbu *p){
+  if( p ){
+    switch( p->eStage ){
+      case RBU_STAGE_OAL: {
+        RbuObjIter *pIter = &p->objiter;
+
+        /* If this is an RBU vacuum operation and the state table was empty
+        ** when this handle was opened, create the target database schema. */
+        if( rbuIsVacuum(p) && p->nProgress==0 && p->rc==SQLITE_OK ){
+          rbuCreateTargetSchema(p);
+          rbuCopyPragma(p, "user_version");
+          rbuCopyPragma(p, "application_id");
+        }
+
+        while( p->rc==SQLITE_OK && pIter->zTbl ){
+
+          if( pIter->bCleanup ){
+            /* Clean up the rbu_tmp_xxx table for the previous table. It 
+            ** cannot be dropped as there are currently active SQL statements.
+            ** But the contents can be deleted.  */
+            if( rbuIsVacuum(p)==0 && pIter->abIndexed ){
+              rbuMPrintfExec(p, p->dbRbu, 
+                  "DELETE FROM %s.'rbu_tmp_%q'", p->zStateDb, pIter->zDataTbl
+              );
+            }
+          }else{
+            rbuObjIterPrepareAll(p, pIter, 0);
+
+            /* Advance to the next row to process. */
+            if( p->rc==SQLITE_OK ){
+              int rc = sqlite3_step(pIter->pSelect);
+              if( rc==SQLITE_ROW ){
+                p->nProgress++;
+                p->nStep++;
+                return rbuStep(p);
+              }
+              p->rc = sqlite3_reset(pIter->pSelect);
+              p->nStep = 0;
+            }
+          }
+
+          rbuObjIterNext(p, pIter);
+        }
+
+        if( p->rc==SQLITE_OK ){
+          assert( pIter->zTbl==0 );
+          rbuSaveState(p, RBU_STAGE_MOVE);
+          rbuIncrSchemaCookie(p);
+          if( p->rc==SQLITE_OK ){
+            p->rc = sqlite3_exec(p->dbMain, "COMMIT", 0, 0, &p->zErrmsg);
+          }
+          if( p->rc==SQLITE_OK ){
+            p->rc = sqlite3_exec(p->dbRbu, "COMMIT", 0, 0, &p->zErrmsg);
+          }
+          p->eStage = RBU_STAGE_MOVE;
+        }
+        break;
+      }
+
+      case RBU_STAGE_MOVE: {
+        if( p->rc==SQLITE_OK ){
+          rbuMoveOalFile(p);
+          p->nProgress++;
+        }
+        break;
+      }
+
+      case RBU_STAGE_CKPT: {
+        if( p->rc==SQLITE_OK ){
+          if( p->nStep>=p->nFrame ){
+            sqlite3_file *pDb = p->pTargetFd->pReal;
+  
+            /* Sync the db file */
+            p->rc = pDb->pMethods->xSync(pDb, SQLITE_SYNC_NORMAL);
+  
+            /* Update nBackfill */
+            if( p->rc==SQLITE_OK ){
+              void volatile *ptr;
+              p->rc = pDb->pMethods->xShmMap(pDb, 0, 32*1024, 0, &ptr);
+              if( p->rc==SQLITE_OK ){
+                ((u32 volatile*)ptr)[24] = p->iMaxFrame;
+              }
+            }
+  
+            if( p->rc==SQLITE_OK ){
+              p->eStage = RBU_STAGE_DONE;
+              p->rc = SQLITE_DONE;
+            }
+          }else{
+            /* At one point the following block copied a single frame from the
+            ** wal file to the database file. So that one call to sqlite3rbu_step()
+            ** checkpointed a single frame. 
+            **
+            ** However, if the sector-size is larger than the page-size, and the
+            ** application calls sqlite3rbu_savestate() or close() immediately
+            ** after this step, then rbu_step() again, then a power failure occurs,
+            ** then the database page written here may be damaged. Work around
+            ** this by checkpointing frames until the next page in the aFrame[]
+            ** lies on a different disk sector to the current one. */
+            u32 iSector;
+            do{
+              RbuFrame *pFrame = &p->aFrame[p->nStep];
+              iSector = (pFrame->iDbPage-1) / p->nPagePerSector;
+              rbuCheckpointFrame(p, pFrame);
+              p->nStep++;
+            }while( p->nStep<p->nFrame 
+                 && iSector==((p->aFrame[p->nStep].iDbPage-1) / p->nPagePerSector)
+                 && p->rc==SQLITE_OK
+            );
+          }
+          p->nProgress++;
+        }
+        break;
+      }
+
+      default:
+        break;
+    }
+    return p->rc;
+  }else{
+    return SQLITE_NOMEM;
+  }
+}
+
+/*
+** Compare strings z1 and z2, returning 0 if they are identical, or non-zero
+** otherwise. Either or both argument may be NULL. Two NULL values are
+** considered equal, and NULL is considered distinct from all other values.
+*/
+static int rbuStrCompare(const char *z1, const char *z2){
+  if( z1==0 && z2==0 ) return 0;
+  if( z1==0 || z2==0 ) return 1;
+  return (sqlite3_stricmp(z1, z2)!=0);
+}
+
+/*
+** This function is called as part of sqlite3rbu_open() when initializing
+** an rbu handle in OAL stage. If the rbu update has not started (i.e.
+** the rbu_state table was empty) it is a no-op. Otherwise, it arranges
+** things so that the next call to sqlite3rbu_step() continues on from
+** where the previous rbu handle left off.
+**
+** If an error occurs, an error code and error message are left in the
+** rbu handle passed as the first argument.
+*/
+static void rbuSetupOal(sqlite3rbu *p, RbuState *pState){
+  assert( p->rc==SQLITE_OK );
+  if( pState->zTbl ){
+    RbuObjIter *pIter = &p->objiter;
+    int rc = SQLITE_OK;
+
+    while( rc==SQLITE_OK && pIter->zTbl && (pIter->bCleanup 
+       || rbuStrCompare(pIter->zIdx, pState->zIdx)
+       || (pState->zDataTbl==0 && rbuStrCompare(pIter->zTbl, pState->zTbl))
+       || (pState->zDataTbl && rbuStrCompare(pIter->zDataTbl, pState->zDataTbl))
+    )){
+      rc = rbuObjIterNext(p, pIter);
+    }
+
+    if( rc==SQLITE_OK && !pIter->zTbl ){
+      rc = SQLITE_ERROR;
+      p->zErrmsg = sqlite3_mprintf("rbu_state mismatch error");
+    }
+
+    if( rc==SQLITE_OK ){
+      p->nStep = pState->nRow;
+      rc = rbuObjIterPrepareAll(p, &p->objiter, p->nStep);
+    }
+
+    p->rc = rc;
+  }
+}
+
+/*
+** If there is a "*-oal" file in the file-system corresponding to the
+** target database in the file-system, delete it. If an error occurs,
+** leave an error code and error message in the rbu handle.
+*/
+static void rbuDeleteOalFile(sqlite3rbu *p){
+  char *zOal = rbuMPrintf(p, "%s-oal", p->zTarget);
+  if( zOal ){
+    sqlite3_vfs *pVfs = 0;
+    sqlite3_file_control(p->dbMain, "main", SQLITE_FCNTL_VFS_POINTER, &pVfs);
+    assert( pVfs && p->rc==SQLITE_OK && p->zErrmsg==0 );
+    pVfs->xDelete(pVfs, zOal, 0);
+    sqlite3_free(zOal);
+  }
+}
+
+/*
+** Allocate a private rbu VFS for the rbu handle passed as the only
+** argument. This VFS will be used unless the call to sqlite3rbu_open()
+** specified a URI with a vfs=? option in place of a target database
+** file name.
+*/
+static void rbuCreateVfs(sqlite3rbu *p){
+  int rnd;
+  char zRnd[64];
+
+  assert( p->rc==SQLITE_OK );
+  sqlite3_randomness(sizeof(int), (void*)&rnd);
+  sqlite3_snprintf(sizeof(zRnd), zRnd, "rbu_vfs_%d", rnd);
+  p->rc = sqlite3rbu_create_vfs(zRnd, 0);
+  if( p->rc==SQLITE_OK ){
+    sqlite3_vfs *pVfs = sqlite3_vfs_find(zRnd);
+    assert( pVfs );
+    p->zVfsName = pVfs->zName;
+    ((rbu_vfs*)pVfs)->pRbu = p;
+  }
+}
+
+/*
+** Destroy the private VFS created for the rbu handle passed as the only
+** argument by an earlier call to rbuCreateVfs().
+*/
+static void rbuDeleteVfs(sqlite3rbu *p){
+  if( p->zVfsName ){
+    sqlite3rbu_destroy_vfs(p->zVfsName);
+    p->zVfsName = 0;
+  }
+}
+
+/*
+** This user-defined SQL function is invoked with a single argument - the
+** name of a table expected to appear in the target database. It returns
+** the number of auxilliary indexes on the table.
+*/
+static void rbuIndexCntFunc(
+  sqlite3_context *pCtx, 
+  int nVal,
+  sqlite3_value **apVal
+){
+  sqlite3rbu *p = (sqlite3rbu*)sqlite3_user_data(pCtx);
+  sqlite3_stmt *pStmt = 0;
+  char *zErrmsg = 0;
+  int rc;
+  sqlite3 *db = (rbuIsVacuum(p) ? p->dbRbu : p->dbMain);
+
+  assert( nVal==1 );
+  UNUSED_PARAMETER(nVal);
+  
+  rc = prepareFreeAndCollectError(db, &pStmt, &zErrmsg, 
+      sqlite3_mprintf("SELECT count(*) FROM sqlite_schema "
+        "WHERE type='index' AND tbl_name = %Q", sqlite3_value_text(apVal[0]))
+  );
+  if( rc!=SQLITE_OK ){
+    sqlite3_result_error(pCtx, zErrmsg, -1);
+  }else{
+    int nIndex = 0;
+    if( SQLITE_ROW==sqlite3_step(pStmt) ){
+      nIndex = sqlite3_column_int(pStmt, 0);
+    }
+    rc = sqlite3_finalize(pStmt);
+    if( rc==SQLITE_OK ){
+      sqlite3_result_int(pCtx, nIndex);
+    }else{
+      sqlite3_result_error(pCtx, sqlite3_errmsg(db), -1);
+    }
+  }
+
+  sqlite3_free(zErrmsg);
+}
+
+/*
+** If the RBU database contains the rbu_count table, use it to initialize
+** the sqlite3rbu.nPhaseOneStep variable. The schema of the rbu_count table
+** is assumed to contain the same columns as:
+**
+**   CREATE TABLE rbu_count(tbl TEXT PRIMARY KEY, cnt INTEGER) WITHOUT ROWID;
+**
+** There should be one row in the table for each data_xxx table in the
+** database. The 'tbl' column should contain the name of a data_xxx table,
+** and the cnt column the number of rows it contains.
+**
+** sqlite3rbu.nPhaseOneStep is initialized to the sum of (1 + nIndex) * cnt
+** for all rows in the rbu_count table, where nIndex is the number of 
+** indexes on the corresponding target database table.
+*/
+static void rbuInitPhaseOneSteps(sqlite3rbu *p){
+  if( p->rc==SQLITE_OK ){
+    sqlite3_stmt *pStmt = 0;
+    int bExists = 0;                /* True if rbu_count exists */
+
+    p->nPhaseOneStep = -1;
+
+    p->rc = sqlite3_create_function(p->dbRbu, 
+        "rbu_index_cnt", 1, SQLITE_UTF8, (void*)p, rbuIndexCntFunc, 0, 0
+    );
+  
+    /* Check for the rbu_count table. If it does not exist, or if an error
+    ** occurs, nPhaseOneStep will be left set to -1. */
+    if( p->rc==SQLITE_OK ){
+      p->rc = prepareAndCollectError(p->dbRbu, &pStmt, &p->zErrmsg,
+          "SELECT 1 FROM sqlite_schema WHERE tbl_name = 'rbu_count'"
+      );
+    }
+    if( p->rc==SQLITE_OK ){
+      if( SQLITE_ROW==sqlite3_step(pStmt) ){
+        bExists = 1;
+      }
+      p->rc = sqlite3_finalize(pStmt);
+    }
+  
+    if( p->rc==SQLITE_OK && bExists ){
+      p->rc = prepareAndCollectError(p->dbRbu, &pStmt, &p->zErrmsg,
+          "SELECT sum(cnt * (1 + rbu_index_cnt(rbu_target_name(tbl))))"
+          "FROM rbu_count"
+      );
+      if( p->rc==SQLITE_OK ){
+        if( SQLITE_ROW==sqlite3_step(pStmt) ){
+          p->nPhaseOneStep = sqlite3_column_int64(pStmt, 0);
+        }
+        p->rc = sqlite3_finalize(pStmt);
+      }
+    }
+  }
+}
+
+
+static sqlite3rbu *openRbuHandle(
+  const char *zTarget, 
+  const char *zRbu,
+  const char *zState
+){
+  sqlite3rbu *p;
+  size_t nTarget = zTarget ? strlen(zTarget) : 0;
+  size_t nRbu = strlen(zRbu);
+  size_t nByte = sizeof(sqlite3rbu) + nTarget+1 + nRbu+1;
+
+  p = (sqlite3rbu*)sqlite3_malloc64(nByte);
+  if( p ){
+    RbuState *pState = 0;
+
+    /* Create the custom VFS. */
+    memset(p, 0, sizeof(sqlite3rbu));
+    sqlite3rbu_rename_handler(p, 0, 0);
+    rbuCreateVfs(p);
+
+    /* Open the target, RBU and state databases */
+    if( p->rc==SQLITE_OK ){
+      char *pCsr = (char*)&p[1];
+      int bRetry = 0;
+      if( zTarget ){
+        p->zTarget = pCsr;
+        memcpy(p->zTarget, zTarget, nTarget+1);
+        pCsr += nTarget+1;
+      }
+      p->zRbu = pCsr;
+      memcpy(p->zRbu, zRbu, nRbu+1);
+      pCsr += nRbu+1;
+      if( zState ){
+        p->zState = rbuMPrintf(p, "%s", zState);
+      }
+
+      /* If the first attempt to open the database file fails and the bRetry
+      ** flag it set, this means that the db was not opened because it seemed
+      ** to be a wal-mode db. But, this may have happened due to an earlier
+      ** RBU vacuum operation leaving an old wal file in the directory.
+      ** If this is the case, it will have been checkpointed and deleted
+      ** when the handle was closed and a second attempt to open the 
+      ** database may succeed.  */
+      rbuOpenDatabase(p, 0, &bRetry);
+      if( bRetry ){
+        rbuOpenDatabase(p, 0, 0);
+      }
+    }
+
+    if( p->rc==SQLITE_OK ){
+      pState = rbuLoadState(p);
+      assert( pState || p->rc!=SQLITE_OK );
+      if( p->rc==SQLITE_OK ){
+
+        if( pState->eStage==0 ){ 
+          rbuDeleteOalFile(p);
+          rbuInitPhaseOneSteps(p);
+          p->eStage = RBU_STAGE_OAL;
+        }else{
+          p->eStage = pState->eStage;
+          p->nPhaseOneStep = pState->nPhaseOneStep;
+        }
+        p->nProgress = pState->nProgress;
+        p->iOalSz = pState->iOalSz;
+      }
+    }
+    assert( p->rc!=SQLITE_OK || p->eStage!=0 );
+
+    if( p->rc==SQLITE_OK && p->pTargetFd->pWalFd ){
+      if( p->eStage==RBU_STAGE_OAL ){
+        p->rc = SQLITE_ERROR;
+        p->zErrmsg = sqlite3_mprintf("cannot update wal mode database");
+      }else if( p->eStage==RBU_STAGE_MOVE ){
+        p->eStage = RBU_STAGE_CKPT;
+        p->nStep = 0;
+      }
+    }
+
+    if( p->rc==SQLITE_OK 
+     && (p->eStage==RBU_STAGE_OAL || p->eStage==RBU_STAGE_MOVE)
+     && pState->eStage!=0
+    ){
+      rbu_file *pFd = (rbuIsVacuum(p) ? p->pRbuFd : p->pTargetFd);
+      if( pFd->iCookie!=pState->iCookie ){   
+        /* At this point (pTargetFd->iCookie) contains the value of the
+        ** change-counter cookie (the thing that gets incremented when a 
+        ** transaction is committed in rollback mode) currently stored on 
+        ** page 1 of the database file. */
+        p->rc = SQLITE_BUSY;
+        p->zErrmsg = sqlite3_mprintf("database modified during rbu %s",
+            (rbuIsVacuum(p) ? "vacuum" : "update")
+        );
+      }
+    }
+
+    if( p->rc==SQLITE_OK ){
+      if( p->eStage==RBU_STAGE_OAL ){
+        sqlite3 *db = p->dbMain;
+        p->rc = sqlite3_exec(p->dbRbu, "BEGIN", 0, 0, &p->zErrmsg);
+
+        /* Point the object iterator at the first object */
+        if( p->rc==SQLITE_OK ){
+          p->rc = rbuObjIterFirst(p, &p->objiter);
+        }
+
+        /* If the RBU database contains no data_xxx tables, declare the RBU
+        ** update finished.  */
+        if( p->rc==SQLITE_OK && p->objiter.zTbl==0 ){
+          p->rc = SQLITE_DONE;
+          p->eStage = RBU_STAGE_DONE;
+        }else{
+          if( p->rc==SQLITE_OK && pState->eStage==0 && rbuIsVacuum(p) ){
+            rbuCopyPragma(p, "page_size");
+            rbuCopyPragma(p, "auto_vacuum");
+          }
+
+          /* Open transactions both databases. The *-oal file is opened or
+          ** created at this point. */
+          if( p->rc==SQLITE_OK ){
+            p->rc = sqlite3_exec(db, "BEGIN IMMEDIATE", 0, 0, &p->zErrmsg);
+          }
+
+          /* Check if the main database is a zipvfs db. If it is, set the upper
+          ** level pager to use "journal_mode=off". This prevents it from 
+          ** generating a large journal using a temp file.  */
+          if( p->rc==SQLITE_OK ){
+            int frc = sqlite3_file_control(db, "main", SQLITE_FCNTL_ZIPVFS, 0);
+            if( frc==SQLITE_OK ){
+              p->rc = sqlite3_exec(
+                db, "PRAGMA journal_mode=off",0,0,&p->zErrmsg);
+            }
+          }
+
+          if( p->rc==SQLITE_OK ){
+            rbuSetupOal(p, pState);
+          }
+        }
+      }else if( p->eStage==RBU_STAGE_MOVE ){
+        /* no-op */
+      }else if( p->eStage==RBU_STAGE_CKPT ){
+        if( !rbuIsVacuum(p) && rbuExclusiveCheckpoint(p->dbMain) ){
+          /* If the rbu_exclusive_checkpoint=1 URI parameter was specified
+          ** and an incremental checkpoint is being resumed, attempt an
+          ** exclusive lock on the db file. If this fails, so be it.  */
+          p->eStage = RBU_STAGE_DONE;
+          rbuLockDatabase(p->dbMain);
+          p->eStage = RBU_STAGE_CKPT;
+        }
+        rbuSetupCheckpoint(p, pState);
+      }else if( p->eStage==RBU_STAGE_DONE ){
+        p->rc = SQLITE_DONE;
+      }else{
+        p->rc = SQLITE_CORRUPT;
+      }
+    }
+
+    rbuFreeState(pState);
+  }
+
+  return p;
+}
+
+/*
+** Allocate and return an RBU handle with all fields zeroed except for the
+** error code, which is set to SQLITE_MISUSE.
+*/
+static sqlite3rbu *rbuMisuseError(void){
+  sqlite3rbu *pRet;
+  pRet = sqlite3_malloc64(sizeof(sqlite3rbu));
+  if( pRet ){
+    memset(pRet, 0, sizeof(sqlite3rbu));
+    pRet->rc = SQLITE_MISUSE;
+  }
+  return pRet;
+}
+
+/*
+** Open and return a new RBU handle. 
+*/
+sqlite3rbu *sqlite3rbu_open(
+  const char *zTarget, 
+  const char *zRbu,
+  const char *zState
+){
+  if( zTarget==0 || zRbu==0 ){ return rbuMisuseError(); }
+  return openRbuHandle(zTarget, zRbu, zState);
+}
+
+/*
+** Open a handle to begin or resume an RBU VACUUM operation.
+*/
+sqlite3rbu *sqlite3rbu_vacuum(
+  const char *zTarget, 
+  const char *zState
+){
+  if( zTarget==0 ){ return rbuMisuseError(); }
+  if( zState ){
+    size_t n = strlen(zState);
+    if( n>=7 && 0==memcmp("-vactmp", &zState[n-7], 7) ){
+      return rbuMisuseError();
+    }
+  }
+  /* TODO: Check that both arguments are non-NULL */
+  return openRbuHandle(0, zTarget, zState);
+}
+
+/*
+** Return the database handle used by pRbu.
+*/
+sqlite3 *sqlite3rbu_db(sqlite3rbu *pRbu, int bRbu){
+  sqlite3 *db = 0;
+  if( pRbu ){
+    db = (bRbu ? pRbu->dbRbu : pRbu->dbMain);
+  }
+  return db;
+}
+
+
+/*
+** If the error code currently stored in the RBU handle is SQLITE_CONSTRAINT,
+** then edit any error message string so as to remove all occurrences of
+** the pattern "rbu_imp_[0-9]*".
+*/
+static void rbuEditErrmsg(sqlite3rbu *p){
+  if( p->rc==SQLITE_CONSTRAINT && p->zErrmsg ){
+    unsigned int i;
+    size_t nErrmsg = strlen(p->zErrmsg);
+    for(i=0; i<(nErrmsg-8); i++){
+      if( memcmp(&p->zErrmsg[i], "rbu_imp_", 8)==0 ){
+        int nDel = 8;
+        while( p->zErrmsg[i+nDel]>='0' && p->zErrmsg[i+nDel]<='9' ) nDel++;
+        memmove(&p->zErrmsg[i], &p->zErrmsg[i+nDel], nErrmsg + 1 - i - nDel);
+        nErrmsg -= nDel;
+      }
+    }
+  }
+}
+
+/*
+** Close the RBU handle.
+*/
+int sqlite3rbu_close(sqlite3rbu *p, char **pzErrmsg){
+  int rc;
+  if( p ){
+
+    /* Commit the transaction to the *-oal file. */
+    if( p->rc==SQLITE_OK && p->eStage==RBU_STAGE_OAL ){
+      p->rc = sqlite3_exec(p->dbMain, "COMMIT", 0, 0, &p->zErrmsg);
+    }
+
+    /* Sync the db file if currently doing an incremental checkpoint */
+    if( p->rc==SQLITE_OK && p->eStage==RBU_STAGE_CKPT ){
+      sqlite3_file *pDb = p->pTargetFd->pReal;
+      p->rc = pDb->pMethods->xSync(pDb, SQLITE_SYNC_NORMAL);
+    }
+
+    rbuSaveState(p, p->eStage);
+
+    if( p->rc==SQLITE_OK && p->eStage==RBU_STAGE_OAL ){
+      p->rc = sqlite3_exec(p->dbRbu, "COMMIT", 0, 0, &p->zErrmsg);
+    }
+
+    /* Close any open statement handles. */
+    rbuObjIterFinalize(&p->objiter);
+
+    /* If this is an RBU vacuum handle and the vacuum has either finished
+    ** successfully or encountered an error, delete the contents of the 
+    ** state table. This causes the next call to sqlite3rbu_vacuum() 
+    ** specifying the current target and state databases to start a new
+    ** vacuum from scratch.  */
+    if( rbuIsVacuum(p) && p->rc!=SQLITE_OK && p->dbRbu ){
+      int rc2 = sqlite3_exec(p->dbRbu, "DELETE FROM stat.rbu_state", 0, 0, 0);
+      if( p->rc==SQLITE_DONE && rc2!=SQLITE_OK ) p->rc = rc2;
+    }
+
+    /* Close the open database handle and VFS object. */
+    sqlite3_close(p->dbRbu);
+    sqlite3_close(p->dbMain);
+    assert( p->szTemp==0 );
+    rbuDeleteVfs(p);
+    sqlite3_free(p->aBuf);
+    sqlite3_free(p->aFrame);
+
+    rbuEditErrmsg(p);
+    rc = p->rc;
+    if( pzErrmsg ){
+      *pzErrmsg = p->zErrmsg;
+    }else{
+      sqlite3_free(p->zErrmsg);
+    }
+    sqlite3_free(p->zState);
+    sqlite3_free(p);
+  }else{
+    rc = SQLITE_NOMEM;
+    *pzErrmsg = 0;
+  }
+  return rc;
+}
+
+/*
+** Return the total number of key-value operations (inserts, deletes or 
+** updates) that have been performed on the target database since the
+** current RBU update was started.
+*/
+sqlite3_int64 sqlite3rbu_progress(sqlite3rbu *pRbu){
+  return pRbu->nProgress;
+}
+
+/*
+** Return permyriadage progress indications for the two main stages of
+** an RBU update.
+*/
+void sqlite3rbu_bp_progress(sqlite3rbu *p, int *pnOne, int *pnTwo){
+  const int MAX_PROGRESS = 10000;
+  switch( p->eStage ){
+    case RBU_STAGE_OAL:
+      if( p->nPhaseOneStep>0 ){
+        *pnOne = (int)(MAX_PROGRESS * (i64)p->nProgress/(i64)p->nPhaseOneStep);
+      }else{
+        *pnOne = -1;
+      }
+      *pnTwo = 0;
+      break;
+
+    case RBU_STAGE_MOVE:
+      *pnOne = MAX_PROGRESS;
+      *pnTwo = 0;
+      break;
+
+    case RBU_STAGE_CKPT:
+      *pnOne = MAX_PROGRESS;
+      *pnTwo = (int)(MAX_PROGRESS * (i64)p->nStep / (i64)p->nFrame);
+      break;
+
+    case RBU_STAGE_DONE:
+      *pnOne = MAX_PROGRESS;
+      *pnTwo = MAX_PROGRESS;
+      break;
+
+    default:
+      assert( 0 );
+  }
+}
+
+/*
+** Return the current state of the RBU vacuum or update operation.
+*/
+int sqlite3rbu_state(sqlite3rbu *p){
+  int aRes[] = {
+    0, SQLITE_RBU_STATE_OAL, SQLITE_RBU_STATE_MOVE,
+    0, SQLITE_RBU_STATE_CHECKPOINT, SQLITE_RBU_STATE_DONE
+  };
+
+  assert( RBU_STAGE_OAL==1 );
+  assert( RBU_STAGE_MOVE==2 );
+  assert( RBU_STAGE_CKPT==4 );
+  assert( RBU_STAGE_DONE==5 );
+  assert( aRes[RBU_STAGE_OAL]==SQLITE_RBU_STATE_OAL );
+  assert( aRes[RBU_STAGE_MOVE]==SQLITE_RBU_STATE_MOVE );
+  assert( aRes[RBU_STAGE_CKPT]==SQLITE_RBU_STATE_CHECKPOINT );
+  assert( aRes[RBU_STAGE_DONE]==SQLITE_RBU_STATE_DONE );
+
+  if( p->rc!=SQLITE_OK && p->rc!=SQLITE_DONE ){
+    return SQLITE_RBU_STATE_ERROR;
+  }else{
+    assert( p->rc!=SQLITE_DONE || p->eStage==RBU_STAGE_DONE );
+    assert( p->eStage==RBU_STAGE_OAL
+         || p->eStage==RBU_STAGE_MOVE
+         || p->eStage==RBU_STAGE_CKPT
+         || p->eStage==RBU_STAGE_DONE
+    );
+    return aRes[p->eStage];
+  }
+}
+
+int sqlite3rbu_savestate(sqlite3rbu *p){
+  int rc = p->rc;
+  if( rc==SQLITE_DONE ) return SQLITE_OK;
+
+  assert( p->eStage>=RBU_STAGE_OAL && p->eStage<=RBU_STAGE_DONE );
+  if( p->eStage==RBU_STAGE_OAL ){
+    assert( rc!=SQLITE_DONE );
+    if( rc==SQLITE_OK ) rc = sqlite3_exec(p->dbMain, "COMMIT", 0, 0, 0);
+  }
+
+  /* Sync the db file */
+  if( rc==SQLITE_OK && p->eStage==RBU_STAGE_CKPT ){
+    sqlite3_file *pDb = p->pTargetFd->pReal;
+    rc = pDb->pMethods->xSync(pDb, SQLITE_SYNC_NORMAL);
+  }
+
+  p->rc = rc;
+  rbuSaveState(p, p->eStage);
+  rc = p->rc;
+
+  if( p->eStage==RBU_STAGE_OAL ){
+    assert( rc!=SQLITE_DONE );
+    if( rc==SQLITE_OK ) rc = sqlite3_exec(p->dbRbu, "COMMIT", 0, 0, 0);
+    if( rc==SQLITE_OK ){ 
+      const char *zBegin = rbuIsVacuum(p) ? "BEGIN" : "BEGIN IMMEDIATE";
+      rc = sqlite3_exec(p->dbRbu, zBegin, 0, 0, 0);
+    }
+    if( rc==SQLITE_OK ) rc = sqlite3_exec(p->dbMain, "BEGIN IMMEDIATE", 0, 0,0);
+  }
+
+  p->rc = rc;
+  return rc;
+}
+
+/*
+** Default xRename callback for RBU.
+*/
+static int xDefaultRename(void *pArg, const char *zOld, const char *zNew){
+  int rc = SQLITE_OK;
+  UNUSED_PARAMETER(pArg);
+#if defined(_WIN32_WCE)
+  {
+    LPWSTR zWideOld;
+    LPWSTR zWideNew;
+
+    zWideOld = rbuWinUtf8ToUnicode(zOld);
+    if( zWideOld ){
+      zWideNew = rbuWinUtf8ToUnicode(zNew);
+      if( zWideNew ){
+        if( MoveFileW(zWideOld, zWideNew) ){
+          rc = SQLITE_OK;
+        }else{
+          rc = SQLITE_IOERR;
+        }
+        sqlite3_free(zWideNew);
+      }else{
+        rc = SQLITE_IOERR_NOMEM;
+      }
+      sqlite3_free(zWideOld);
+    }else{
+      rc = SQLITE_IOERR_NOMEM;
+    }
+  }
+#else
+  rc = rename(zOld, zNew) ? SQLITE_IOERR : SQLITE_OK;
+#endif
+  return rc;
+}
+
+void sqlite3rbu_rename_handler(
+  sqlite3rbu *pRbu, 
+  void *pArg,
+  int (*xRename)(void *pArg, const char *zOld, const char *zNew)
+){
+  if( xRename ){
+    pRbu->xRename = xRename;
+    pRbu->pRenameArg = pArg;
+  }else{
+    pRbu->xRename = xDefaultRename;
+    pRbu->pRenameArg = 0;
+  }
+}
+
+/**************************************************************************
+** Beginning of RBU VFS shim methods. The VFS shim modifies the behaviour
+** of a standard VFS in the following ways:
+**
+** 1. Whenever the first page of a main database file is read or 
+**    written, the value of the change-counter cookie is stored in
+**    rbu_file.iCookie. Similarly, the value of the "write-version"
+**    database header field is stored in rbu_file.iWriteVer. This ensures
+**    that the values are always trustworthy within an open transaction.
+**
+** 2. Whenever an SQLITE_OPEN_WAL file is opened, the (rbu_file.pWalFd)
+**    member variable of the associated database file descriptor is set
+**    to point to the new file. A mutex protected linked list of all main 
+**    db fds opened using a particular RBU VFS is maintained at 
+**    rbu_vfs.pMain to facilitate this.
+**
+** 3. Using a new file-control "SQLITE_FCNTL_RBU", a main db rbu_file 
+**    object can be marked as the target database of an RBU update. This
+**    turns on the following extra special behaviour:
+**
+** 3a. If xAccess() is called to check if there exists a *-wal file 
+**     associated with an RBU target database currently in RBU_STAGE_OAL
+**     stage (preparing the *-oal file), the following special handling
+**     applies:
+**
+**      * if the *-wal file does exist, return SQLITE_CANTOPEN. An RBU
+**        target database may not be in wal mode already.
+**
+**      * if the *-wal file does not exist, set the output parameter to
+**        non-zero (to tell SQLite that it does exist) anyway.
+**
+**     Then, when xOpen() is called to open the *-wal file associated with
+**     the RBU target in RBU_STAGE_OAL stage, instead of opening the *-wal
+**     file, the rbu vfs opens the corresponding *-oal file instead. 
+**
+** 3b. The *-shm pages returned by xShmMap() for a target db file in
+**     RBU_STAGE_OAL mode are actually stored in heap memory. This is to
+**     avoid creating a *-shm file on disk. Additionally, xShmLock() calls
+**     are no-ops on target database files in RBU_STAGE_OAL mode. This is
+**     because assert() statements in some VFS implementations fail if 
+**     xShmLock() is called before xShmMap().
+**
+** 3c. If an EXCLUSIVE lock is attempted on a target database file in any
+**     mode except RBU_STAGE_DONE (all work completed and checkpointed), it 
+**     fails with an SQLITE_BUSY error. This is to stop RBU connections
+**     from automatically checkpointing a *-wal (or *-oal) file from within
+**     sqlite3_close().
+**
+** 3d. In RBU_STAGE_CAPTURE mode, all xRead() calls on the wal file, and
+**     all xWrite() calls on the target database file perform no IO. 
+**     Instead the frame and page numbers that would be read and written
+**     are recorded. Additionally, successful attempts to obtain exclusive
+**     xShmLock() WRITER, CHECKPOINTER and READ0 locks on the target 
+**     database file are recorded. xShmLock() calls to unlock the same
+**     locks are no-ops (so that once obtained, these locks are never
+**     relinquished). Finally, calls to xSync() on the target database
+**     file fail with SQLITE_NOTICE errors.
+*/
+
+static void rbuUnlockShm(rbu_file *p){
+  assert( p->openFlags & SQLITE_OPEN_MAIN_DB );
+  if( p->pRbu ){
+    int (*xShmLock)(sqlite3_file*,int,int,int) = p->pReal->pMethods->xShmLock;
+    int i;
+    for(i=0; i<SQLITE_SHM_NLOCK;i++){
+      if( (1<<i) & p->pRbu->mLock ){
+        xShmLock(p->pReal, i, 1, SQLITE_SHM_UNLOCK|SQLITE_SHM_EXCLUSIVE);
+      }
+    }
+    p->pRbu->mLock = 0;
+  }
+}
+
+/*
+*/
+static int rbuUpdateTempSize(rbu_file *pFd, sqlite3_int64 nNew){
+  sqlite3rbu *pRbu = pFd->pRbu;
+  i64 nDiff = nNew - pFd->sz;
+  pRbu->szTemp += nDiff;
+  pFd->sz = nNew;
+  assert( pRbu->szTemp>=0 );
+  if( pRbu->szTempLimit && pRbu->szTemp>pRbu->szTempLimit ) return SQLITE_FULL;
+  return SQLITE_OK;
+}
+
+/*
+** Add an item to the main-db lists, if it is not already present.
+**
+** There are two main-db lists. One for all file descriptors, and one
+** for all file descriptors with rbu_file.pDb!=0. If the argument has
+** rbu_file.pDb!=0, then it is assumed to already be present on the
+** main list and is only added to the pDb!=0 list.
+*/
+static void rbuMainlistAdd(rbu_file *p){
+  rbu_vfs *pRbuVfs = p->pRbuVfs;
+  rbu_file *pIter;
+  assert( (p->openFlags & SQLITE_OPEN_MAIN_DB) );
+  sqlite3_mutex_enter(pRbuVfs->mutex);
+  if( p->pRbu==0 ){
+    for(pIter=pRbuVfs->pMain; pIter; pIter=pIter->pMainNext);
+    p->pMainNext = pRbuVfs->pMain;
+    pRbuVfs->pMain = p;
+  }else{
+    for(pIter=pRbuVfs->pMainRbu; pIter && pIter!=p; pIter=pIter->pMainRbuNext){}
+    if( pIter==0 ){
+      p->pMainRbuNext = pRbuVfs->pMainRbu;
+      pRbuVfs->pMainRbu = p;
+    }
+  }
+  sqlite3_mutex_leave(pRbuVfs->mutex);
+}
+
+/*
+** Remove an item from the main-db lists.
+*/
+static void rbuMainlistRemove(rbu_file *p){
+  rbu_file **pp;
+  sqlite3_mutex_enter(p->pRbuVfs->mutex);
+  for(pp=&p->pRbuVfs->pMain; *pp && *pp!=p; pp=&((*pp)->pMainNext)){}
+  if( *pp ) *pp = p->pMainNext;
+  p->pMainNext = 0;
+  for(pp=&p->pRbuVfs->pMainRbu; *pp && *pp!=p; pp=&((*pp)->pMainRbuNext)){}
+  if( *pp ) *pp = p->pMainRbuNext;
+  p->pMainRbuNext = 0;
+  sqlite3_mutex_leave(p->pRbuVfs->mutex);
+}
+
+/*
+** Given that zWal points to a buffer containing a wal file name passed to 
+** either the xOpen() or xAccess() VFS method, search the main-db list for
+** a file-handle opened by the same database connection on the corresponding
+** database file.
+**
+** If parameter bRbu is true, only search for file-descriptors with
+** rbu_file.pDb!=0.
+*/
+static rbu_file *rbuFindMaindb(rbu_vfs *pRbuVfs, const char *zWal, int bRbu){
+  rbu_file *pDb;
+  sqlite3_mutex_enter(pRbuVfs->mutex);
+  if( bRbu ){
+    for(pDb=pRbuVfs->pMainRbu; pDb && pDb->zWal!=zWal; pDb=pDb->pMainRbuNext){}
+  }else{
+    for(pDb=pRbuVfs->pMain; pDb && pDb->zWal!=zWal; pDb=pDb->pMainNext){}
+  }
+  sqlite3_mutex_leave(pRbuVfs->mutex);
+  return pDb;
+}
+
+/*
+** Close an rbu file.
+*/
+static int rbuVfsClose(sqlite3_file *pFile){
+  rbu_file *p = (rbu_file*)pFile;
+  int rc;
+  int i;
+
+  /* Free the contents of the apShm[] array. And the array itself. */
+  for(i=0; i<p->nShm; i++){
+    sqlite3_free(p->apShm[i]);
+  }
+  sqlite3_free(p->apShm);
+  p->apShm = 0;
+  sqlite3_free(p->zDel);
+
+  if( p->openFlags & SQLITE_OPEN_MAIN_DB ){
+    const sqlite3_io_methods *pMeth = p->pReal->pMethods;
+    rbuMainlistRemove(p);
+    rbuUnlockShm(p);
+    if( pMeth->iVersion>1 && pMeth->xShmUnmap ){
+      pMeth->xShmUnmap(p->pReal, 0);
+    }
+  }
+  else if( (p->openFlags & SQLITE_OPEN_DELETEONCLOSE) && p->pRbu ){
+    rbuUpdateTempSize(p, 0);
+  }
+  assert( p->pMainNext==0 && p->pRbuVfs->pMain!=p );
+
+  /* Close the underlying file handle */
+  rc = p->pReal->pMethods->xClose(p->pReal);
+  return rc;
+}
+
+
+/*
+** Read and return an unsigned 32-bit big-endian integer from the buffer 
+** passed as the only argument.
+*/
+static u32 rbuGetU32(u8 *aBuf){
+  return ((u32)aBuf[0] << 24)
+       + ((u32)aBuf[1] << 16)
+       + ((u32)aBuf[2] <<  8)
+       + ((u32)aBuf[3]);
+}
+
+/*
+** Write an unsigned 32-bit value in big-endian format to the supplied
+** buffer.
+*/
+static void rbuPutU32(u8 *aBuf, u32 iVal){
+  aBuf[0] = (iVal >> 24) & 0xFF;
+  aBuf[1] = (iVal >> 16) & 0xFF;
+  aBuf[2] = (iVal >>  8) & 0xFF;
+  aBuf[3] = (iVal >>  0) & 0xFF;
+}
+
+static void rbuPutU16(u8 *aBuf, u16 iVal){
+  aBuf[0] = (iVal >>  8) & 0xFF;
+  aBuf[1] = (iVal >>  0) & 0xFF;
+}
+
+/*
+** Read data from an rbuVfs-file.
+*/
+static int rbuVfsRead(
+  sqlite3_file *pFile, 
+  void *zBuf, 
+  int iAmt, 
+  sqlite_int64 iOfst
+){
+  rbu_file *p = (rbu_file*)pFile;
+  sqlite3rbu *pRbu = p->pRbu;
+  int rc;
+
+  if( pRbu && pRbu->eStage==RBU_STAGE_CAPTURE ){
+    assert( p->openFlags & SQLITE_OPEN_WAL );
+    rc = rbuCaptureWalRead(p->pRbu, iOfst, iAmt);
+  }else{
+    if( pRbu && pRbu->eStage==RBU_STAGE_OAL 
+     && (p->openFlags & SQLITE_OPEN_WAL) 
+     && iOfst>=pRbu->iOalSz 
+    ){
+      rc = SQLITE_OK;
+      memset(zBuf, 0, iAmt);
+    }else{
+      rc = p->pReal->pMethods->xRead(p->pReal, zBuf, iAmt, iOfst);
+#if 1
+      /* If this is being called to read the first page of the target 
+      ** database as part of an rbu vacuum operation, synthesize the 
+      ** contents of the first page if it does not yet exist. Otherwise,
+      ** SQLite will not check for a *-wal file.  */
+      if( pRbu && rbuIsVacuum(pRbu) 
+          && rc==SQLITE_IOERR_SHORT_READ && iOfst==0
+          && (p->openFlags & SQLITE_OPEN_MAIN_DB)
+          && pRbu->rc==SQLITE_OK
+      ){
+        sqlite3_file *pFd = (sqlite3_file*)pRbu->pRbuFd;
+        rc = pFd->pMethods->xRead(pFd, zBuf, iAmt, iOfst);
+        if( rc==SQLITE_OK ){
+          u8 *aBuf = (u8*)zBuf;
+          u32 iRoot = rbuGetU32(&aBuf[52]) ? 1 : 0;
+          rbuPutU32(&aBuf[52], iRoot);      /* largest root page number */
+          rbuPutU32(&aBuf[36], 0);          /* number of free pages */
+          rbuPutU32(&aBuf[32], 0);          /* first page on free list trunk */
+          rbuPutU32(&aBuf[28], 1);          /* size of db file in pages */
+          rbuPutU32(&aBuf[24], pRbu->pRbuFd->iCookie+1);  /* Change counter */
+
+          if( iAmt>100 ){
+            memset(&aBuf[100], 0, iAmt-100);
+            rbuPutU16(&aBuf[105], iAmt & 0xFFFF);
+            aBuf[100] = 0x0D;
+          }
+        }
+      }
+#endif
+    }
+    if( rc==SQLITE_OK && iOfst==0 && (p->openFlags & SQLITE_OPEN_MAIN_DB) ){
+      /* These look like magic numbers. But they are stable, as they are part
+       ** of the definition of the SQLite file format, which may not change. */
+      u8 *pBuf = (u8*)zBuf;
+      p->iCookie = rbuGetU32(&pBuf[24]);
+      p->iWriteVer = pBuf[19];
+    }
+  }
+  return rc;
+}
+
+/*
+** Write data to an rbuVfs-file.
+*/
+static int rbuVfsWrite(
+  sqlite3_file *pFile, 
+  const void *zBuf, 
+  int iAmt, 
+  sqlite_int64 iOfst
+){
+  rbu_file *p = (rbu_file*)pFile;
+  sqlite3rbu *pRbu = p->pRbu;
+  int rc;
+
+  if( pRbu && pRbu->eStage==RBU_STAGE_CAPTURE ){
+    assert( p->openFlags & SQLITE_OPEN_MAIN_DB );
+    rc = rbuCaptureDbWrite(p->pRbu, iOfst);
+  }else{
+    if( pRbu ){
+      if( pRbu->eStage==RBU_STAGE_OAL 
+       && (p->openFlags & SQLITE_OPEN_WAL) 
+       && iOfst>=pRbu->iOalSz
+      ){
+        pRbu->iOalSz = iAmt + iOfst;
+      }else if( p->openFlags & SQLITE_OPEN_DELETEONCLOSE ){
+        i64 szNew = iAmt+iOfst;
+        if( szNew>p->sz ){
+          rc = rbuUpdateTempSize(p, szNew);
+          if( rc!=SQLITE_OK ) return rc;
+        }
+      }
+    }
+    rc = p->pReal->pMethods->xWrite(p->pReal, zBuf, iAmt, iOfst);
+    if( rc==SQLITE_OK && iOfst==0 && (p->openFlags & SQLITE_OPEN_MAIN_DB) ){
+      /* These look like magic numbers. But they are stable, as they are part
+      ** of the definition of the SQLite file format, which may not change. */
+      u8 *pBuf = (u8*)zBuf;
+      p->iCookie = rbuGetU32(&pBuf[24]);
+      p->iWriteVer = pBuf[19];
+    }
+  }
+  return rc;
+}
+
+/*
+** Truncate an rbuVfs-file.
+*/
+static int rbuVfsTruncate(sqlite3_file *pFile, sqlite_int64 size){
+  rbu_file *p = (rbu_file*)pFile;
+  if( (p->openFlags & SQLITE_OPEN_DELETEONCLOSE) && p->pRbu ){
+    int rc = rbuUpdateTempSize(p, size);
+    if( rc!=SQLITE_OK ) return rc;
+  }
+  return p->pReal->pMethods->xTruncate(p->pReal, size);
+}
+
+/*
+** Sync an rbuVfs-file.
+*/
+static int rbuVfsSync(sqlite3_file *pFile, int flags){
+  rbu_file *p = (rbu_file *)pFile;
+  if( p->pRbu && p->pRbu->eStage==RBU_STAGE_CAPTURE ){
+    if( p->openFlags & SQLITE_OPEN_MAIN_DB ){
+      return SQLITE_NOTICE_RBU;
+    }
+    return SQLITE_OK;
+  }
+  return p->pReal->pMethods->xSync(p->pReal, flags);
+}
+
+/*
+** Return the current file-size of an rbuVfs-file.
+*/
+static int rbuVfsFileSize(sqlite3_file *pFile, sqlite_int64 *pSize){
+  rbu_file *p = (rbu_file *)pFile;
+  int rc;
+  rc = p->pReal->pMethods->xFileSize(p->pReal, pSize);
+
+  /* If this is an RBU vacuum operation and this is the target database,
+  ** pretend that it has at least one page. Otherwise, SQLite will not
+  ** check for the existance of a *-wal file. rbuVfsRead() contains 
+  ** similar logic.  */
+  if( rc==SQLITE_OK && *pSize==0 
+   && p->pRbu && rbuIsVacuum(p->pRbu) 
+   && (p->openFlags & SQLITE_OPEN_MAIN_DB)
+  ){
+    *pSize = 1024;
+  }
+  return rc;
+}
+
+/*
+** Lock an rbuVfs-file.
+*/
+static int rbuVfsLock(sqlite3_file *pFile, int eLock){
+  rbu_file *p = (rbu_file*)pFile;
+  sqlite3rbu *pRbu = p->pRbu;
+  int rc = SQLITE_OK;
+
+  assert( p->openFlags & (SQLITE_OPEN_MAIN_DB|SQLITE_OPEN_TEMP_DB) );
+  if( eLock==SQLITE_LOCK_EXCLUSIVE 
+   && (p->bNolock || (pRbu && pRbu->eStage!=RBU_STAGE_DONE))
+  ){
+    /* Do not allow EXCLUSIVE locks. Preventing SQLite from taking this 
+    ** prevents it from checkpointing the database from sqlite3_close(). */
+    rc = SQLITE_BUSY;
+  }else{
+    rc = p->pReal->pMethods->xLock(p->pReal, eLock);
+  }
+
+  return rc;
+}
+
+/*
+** Unlock an rbuVfs-file.
+*/
+static int rbuVfsUnlock(sqlite3_file *pFile, int eLock){
+  rbu_file *p = (rbu_file *)pFile;
+  return p->pReal->pMethods->xUnlock(p->pReal, eLock);
+}
+
+/*
+** Check if another file-handle holds a RESERVED lock on an rbuVfs-file.
+*/
+static int rbuVfsCheckReservedLock(sqlite3_file *pFile, int *pResOut){
+  rbu_file *p = (rbu_file *)pFile;
+  return p->pReal->pMethods->xCheckReservedLock(p->pReal, pResOut);
+}
+
+/*
+** File control method. For custom operations on an rbuVfs-file.
+*/
+static int rbuVfsFileControl(sqlite3_file *pFile, int op, void *pArg){
+  rbu_file *p = (rbu_file *)pFile;
+  int (*xControl)(sqlite3_file*,int,void*) = p->pReal->pMethods->xFileControl;
+  int rc;
+
+  assert( p->openFlags & (SQLITE_OPEN_MAIN_DB|SQLITE_OPEN_TEMP_DB)
+       || p->openFlags & (SQLITE_OPEN_TRANSIENT_DB|SQLITE_OPEN_TEMP_JOURNAL)
+  );
+  if( op==SQLITE_FCNTL_RBU ){
+    sqlite3rbu *pRbu = (sqlite3rbu*)pArg;
+
+    /* First try to find another RBU vfs lower down in the vfs stack. If
+    ** one is found, this vfs will operate in pass-through mode. The lower
+    ** level vfs will do the special RBU handling.  */
+    rc = xControl(p->pReal, op, pArg);
+
+    if( rc==SQLITE_NOTFOUND ){
+      /* Now search for a zipvfs instance lower down in the VFS stack. If
+      ** one is found, this is an error.  */
+      void *dummy = 0;
+      rc = xControl(p->pReal, SQLITE_FCNTL_ZIPVFS, &dummy);
+      if( rc==SQLITE_OK ){
+        rc = SQLITE_ERROR;
+        pRbu->zErrmsg = sqlite3_mprintf("rbu/zipvfs setup error");
+      }else if( rc==SQLITE_NOTFOUND ){
+        pRbu->pTargetFd = p;
+        p->pRbu = pRbu;
+        rbuMainlistAdd(p);
+        if( p->pWalFd ) p->pWalFd->pRbu = pRbu;
+        rc = SQLITE_OK;
+      }
+    }
+    return rc;
+  }
+  else if( op==SQLITE_FCNTL_RBUCNT ){
+    sqlite3rbu *pRbu = (sqlite3rbu*)pArg;
+    pRbu->nRbu++;
+    pRbu->pRbuFd = p;
+    p->bNolock = 1;
+  }
+
+  rc = xControl(p->pReal, op, pArg);
+  if( rc==SQLITE_OK && op==SQLITE_FCNTL_VFSNAME ){
+    rbu_vfs *pRbuVfs = p->pRbuVfs;
+    char *zIn = *(char**)pArg;
+    char *zOut = sqlite3_mprintf("rbu(%s)/%z", pRbuVfs->base.zName, zIn);
+    *(char**)pArg = zOut;
+    if( zOut==0 ) rc = SQLITE_NOMEM;
+  }
+
+  return rc;
+}
+
+/*
+** Return the sector-size in bytes for an rbuVfs-file.
+*/
+static int rbuVfsSectorSize(sqlite3_file *pFile){
+  rbu_file *p = (rbu_file *)pFile;
+  return p->pReal->pMethods->xSectorSize(p->pReal);
+}
+
+/*
+** Return the device characteristic flags supported by an rbuVfs-file.
+*/
+static int rbuVfsDeviceCharacteristics(sqlite3_file *pFile){
+  rbu_file *p = (rbu_file *)pFile;
+  return p->pReal->pMethods->xDeviceCharacteristics(p->pReal);
+}
+
+/*
+** Take or release a shared-memory lock.
+*/
+static int rbuVfsShmLock(sqlite3_file *pFile, int ofst, int n, int flags){
+  rbu_file *p = (rbu_file*)pFile;
+  sqlite3rbu *pRbu = p->pRbu;
+  int rc = SQLITE_OK;
+
+#ifdef SQLITE_AMALGAMATION
+    assert( WAL_CKPT_LOCK==1 );
+#endif
+
+  assert( p->openFlags & (SQLITE_OPEN_MAIN_DB|SQLITE_OPEN_TEMP_DB) );
+  if( pRbu && (
+       pRbu->eStage==RBU_STAGE_OAL 
+    || pRbu->eStage==RBU_STAGE_MOVE 
+    || pRbu->eStage==RBU_STAGE_DONE
+  )){
+    /* Prevent SQLite from taking a shm-lock on the target file when it 
+    ** is supplying heap memory to the upper layer in place of *-shm 
+    ** segments. */
+    if( ofst==WAL_LOCK_CKPT && n==1 ) rc = SQLITE_BUSY;
+  }else{
+    int bCapture = 0;
+    if( pRbu && pRbu->eStage==RBU_STAGE_CAPTURE ){
+      bCapture = 1;
+    }
+    if( bCapture==0 || 0==(flags & SQLITE_SHM_UNLOCK) ){
+      rc = p->pReal->pMethods->xShmLock(p->pReal, ofst, n, flags);
+      if( bCapture && rc==SQLITE_OK ){
+        pRbu->mLock |= ((1<<n) - 1) << ofst;
+      }
+    }
+  }
+
+  return rc;
+}
+
+/*
+** Obtain a pointer to a mapping of a single 32KiB page of the *-shm file.
+*/
+static int rbuVfsShmMap(
+  sqlite3_file *pFile, 
+  int iRegion, 
+  int szRegion, 
+  int isWrite, 
+  void volatile **pp
+){
+  rbu_file *p = (rbu_file*)pFile;
+  int rc = SQLITE_OK;
+  int eStage = (p->pRbu ? p->pRbu->eStage : 0);
+
+  /* If not in RBU_STAGE_OAL, allow this call to pass through. Or, if this
+  ** rbu is in the RBU_STAGE_OAL state, use heap memory for *-shm space 
+  ** instead of a file on disk.  */
+  assert( p->openFlags & (SQLITE_OPEN_MAIN_DB|SQLITE_OPEN_TEMP_DB) );
+  if( eStage==RBU_STAGE_OAL ){
+    sqlite3_int64 nByte = (iRegion+1) * sizeof(char*);
+    char **apNew = (char**)sqlite3_realloc64(p->apShm, nByte);
+
+    /* This is an RBU connection that uses its own heap memory for the
+    ** pages of the *-shm file. Since no other process can have run
+    ** recovery, the connection must request *-shm pages in order
+    ** from start to finish.  */
+    assert( iRegion==p->nShm );
+    if( apNew==0 ){
+      rc = SQLITE_NOMEM;
+    }else{
+      memset(&apNew[p->nShm], 0, sizeof(char*) * (1 + iRegion - p->nShm));
+      p->apShm = apNew;
+      p->nShm = iRegion+1;
+    }
+
+    if( rc==SQLITE_OK ){
+      char *pNew = (char*)sqlite3_malloc64(szRegion);
+      if( pNew==0 ){
+        rc = SQLITE_NOMEM;
+      }else{
+        memset(pNew, 0, szRegion);
+        p->apShm[iRegion] = pNew;
+      }
+    }
+
+    if( rc==SQLITE_OK ){
+      *pp = p->apShm[iRegion];
+    }else{
+      *pp = 0;
+    }
+  }else{
+    assert( p->apShm==0 );
+    rc = p->pReal->pMethods->xShmMap(p->pReal, iRegion, szRegion, isWrite, pp);
+  }
+
+  return rc;
+}
+
+/*
+** Memory barrier.
+*/
+static void rbuVfsShmBarrier(sqlite3_file *pFile){
+  rbu_file *p = (rbu_file *)pFile;
+  p->pReal->pMethods->xShmBarrier(p->pReal);
+}
+
+/*
+** The xShmUnmap method.
+*/
+static int rbuVfsShmUnmap(sqlite3_file *pFile, int delFlag){
+  rbu_file *p = (rbu_file*)pFile;
+  int rc = SQLITE_OK;
+  int eStage = (p->pRbu ? p->pRbu->eStage : 0);
+
+  assert( p->openFlags & (SQLITE_OPEN_MAIN_DB|SQLITE_OPEN_TEMP_DB) );
+  if( eStage==RBU_STAGE_OAL || eStage==RBU_STAGE_MOVE ){
+    /* no-op */
+  }else{
+    /* Release the checkpointer and writer locks */
+    rbuUnlockShm(p);
+    rc = p->pReal->pMethods->xShmUnmap(p->pReal, delFlag);
+  }
+  return rc;
+}
+
+/*
+** Open an rbu file handle.
+*/
+static int rbuVfsOpen(
+  sqlite3_vfs *pVfs,
+  const char *zName,
+  sqlite3_file *pFile,
+  int flags,
+  int *pOutFlags
+){
+  static sqlite3_io_methods rbuvfs_io_methods = {
+    2,                            /* iVersion */
+    rbuVfsClose,                  /* xClose */
+    rbuVfsRead,                   /* xRead */
+    rbuVfsWrite,                  /* xWrite */
+    rbuVfsTruncate,               /* xTruncate */
+    rbuVfsSync,                   /* xSync */
+    rbuVfsFileSize,               /* xFileSize */
+    rbuVfsLock,                   /* xLock */
+    rbuVfsUnlock,                 /* xUnlock */
+    rbuVfsCheckReservedLock,      /* xCheckReservedLock */
+    rbuVfsFileControl,            /* xFileControl */
+    rbuVfsSectorSize,             /* xSectorSize */
+    rbuVfsDeviceCharacteristics,  /* xDeviceCharacteristics */
+    rbuVfsShmMap,                 /* xShmMap */
+    rbuVfsShmLock,                /* xShmLock */
+    rbuVfsShmBarrier,             /* xShmBarrier */
+    rbuVfsShmUnmap,               /* xShmUnmap */
+    0, 0                          /* xFetch, xUnfetch */
+  };
+  static sqlite3_io_methods rbuvfs_io_methods1 = {
+    1,                            /* iVersion */
+    rbuVfsClose,                  /* xClose */
+    rbuVfsRead,                   /* xRead */
+    rbuVfsWrite,                  /* xWrite */
+    rbuVfsTruncate,               /* xTruncate */
+    rbuVfsSync,                   /* xSync */
+    rbuVfsFileSize,               /* xFileSize */
+    rbuVfsLock,                   /* xLock */
+    rbuVfsUnlock,                 /* xUnlock */
+    rbuVfsCheckReservedLock,      /* xCheckReservedLock */
+    rbuVfsFileControl,            /* xFileControl */
+    rbuVfsSectorSize,             /* xSectorSize */
+    rbuVfsDeviceCharacteristics,  /* xDeviceCharacteristics */
+    0, 0, 0, 0, 0, 0
+  };
+
+
+
+  rbu_vfs *pRbuVfs = (rbu_vfs*)pVfs;
+  sqlite3_vfs *pRealVfs = pRbuVfs->pRealVfs;
+  rbu_file *pFd = (rbu_file *)pFile;
+  int rc = SQLITE_OK;
+  const char *zOpen = zName;
+  int oflags = flags;
+
+  memset(pFd, 0, sizeof(rbu_file));
+  pFd->pReal = (sqlite3_file*)&pFd[1];
+  pFd->pRbuVfs = pRbuVfs;
+  pFd->openFlags = flags;
+  if( zName ){
+    if( flags & SQLITE_OPEN_MAIN_DB ){
+      /* A main database has just been opened. The following block sets
+      ** (pFd->zWal) to point to a buffer owned by SQLite that contains
+      ** the name of the *-wal file this db connection will use. SQLite
+      ** happens to pass a pointer to this buffer when using xAccess()
+      ** or xOpen() to operate on the *-wal file.  */
+      pFd->zWal = sqlite3_filename_wal(zName);
+    }
+    else if( flags & SQLITE_OPEN_WAL ){
+      rbu_file *pDb = rbuFindMaindb(pRbuVfs, zName, 0);
+      if( pDb ){
+        if( pDb->pRbu && pDb->pRbu->eStage==RBU_STAGE_OAL ){
+          /* This call is to open a *-wal file. Intead, open the *-oal. */
+          size_t nOpen;
+          if( rbuIsVacuum(pDb->pRbu) ){
+            zOpen = sqlite3_db_filename(pDb->pRbu->dbRbu, "main");
+            zOpen = sqlite3_filename_wal(zOpen);
+          }
+          nOpen = strlen(zOpen);
+          ((char*)zOpen)[nOpen-3] = 'o';
+          pFd->pRbu = pDb->pRbu;
+        }
+        pDb->pWalFd = pFd;
+      }
+    }
+  }else{
+    pFd->pRbu = pRbuVfs->pRbu;
+  }
+
+  if( oflags & SQLITE_OPEN_MAIN_DB 
+   && sqlite3_uri_boolean(zName, "rbu_memory", 0) 
+  ){
+    assert( oflags & SQLITE_OPEN_MAIN_DB );
+    oflags =  SQLITE_OPEN_TEMP_DB | SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE |
+              SQLITE_OPEN_EXCLUSIVE | SQLITE_OPEN_DELETEONCLOSE;
+    zOpen = 0;
+  }
+
+  if( rc==SQLITE_OK ){
+    rc = pRealVfs->xOpen(pRealVfs, zOpen, pFd->pReal, oflags, pOutFlags);
+  }
+  if( pFd->pReal->pMethods ){
+    const sqlite3_io_methods *pMeth = pFd->pReal->pMethods;
+    /* The xOpen() operation has succeeded. Set the sqlite3_file.pMethods
+    ** pointer and, if the file is a main database file, link it into the
+    ** mutex protected linked list of all such files.  */
+    if( pMeth->iVersion<2 || pMeth->xShmLock==0 ){
+      pFile->pMethods = &rbuvfs_io_methods1;
+    }else{
+      pFile->pMethods = &rbuvfs_io_methods;
+    }
+    if( flags & SQLITE_OPEN_MAIN_DB ){
+      rbuMainlistAdd(pFd);
+    }
+  }else{
+    sqlite3_free(pFd->zDel);
+  }
+
+  return rc;
+}
+
+/*
+** Delete the file located at zPath.
+*/
+static int rbuVfsDelete(sqlite3_vfs *pVfs, const char *zPath, int dirSync){
+  sqlite3_vfs *pRealVfs = ((rbu_vfs*)pVfs)->pRealVfs;
+  return pRealVfs->xDelete(pRealVfs, zPath, dirSync);
+}
+
+/*
+** Test for access permissions. Return true if the requested permission
+** is available, or false otherwise.
+*/
+static int rbuVfsAccess(
+  sqlite3_vfs *pVfs, 
+  const char *zPath, 
+  int flags, 
+  int *pResOut
+){
+  rbu_vfs *pRbuVfs = (rbu_vfs*)pVfs;
+  sqlite3_vfs *pRealVfs = pRbuVfs->pRealVfs;
+  int rc;
+
+  rc = pRealVfs->xAccess(pRealVfs, zPath, flags, pResOut);
+
+  /* If this call is to check if a *-wal file associated with an RBU target
+  ** database connection exists, and the RBU update is in RBU_STAGE_OAL,
+  ** the following special handling is activated:
+  **
+  **   a) if the *-wal file does exist, return SQLITE_CANTOPEN. This
+  **      ensures that the RBU extension never tries to update a database
+  **      in wal mode, even if the first page of the database file has
+  **      been damaged. 
+  **
+  **   b) if the *-wal file does not exist, claim that it does anyway,
+  **      causing SQLite to call xOpen() to open it. This call will also
+  **      be intercepted (see the rbuVfsOpen() function) and the *-oal
+  **      file opened instead.
+  */
+  if( rc==SQLITE_OK && flags==SQLITE_ACCESS_EXISTS ){
+    rbu_file *pDb = rbuFindMaindb(pRbuVfs, zPath, 1);
+    if( pDb && pDb->pRbu->eStage==RBU_STAGE_OAL ){
+      assert( pDb->pRbu );
+      if( *pResOut ){
+        rc = SQLITE_CANTOPEN;
+      }else{
+        sqlite3_int64 sz = 0;
+        rc = rbuVfsFileSize(&pDb->base, &sz);
+        *pResOut = (sz>0);
+      }
+    }
+  }
+
+  return rc;
+}
+
+/*
+** Populate buffer zOut with the full canonical pathname corresponding
+** to the pathname in zPath. zOut is guaranteed to point to a buffer
+** of at least (DEVSYM_MAX_PATHNAME+1) bytes.
+*/
+static int rbuVfsFullPathname(
+  sqlite3_vfs *pVfs, 
+  const char *zPath, 
+  int nOut, 
+  char *zOut
+){
+  sqlite3_vfs *pRealVfs = ((rbu_vfs*)pVfs)->pRealVfs;
+  return pRealVfs->xFullPathname(pRealVfs, zPath, nOut, zOut);
+}
+
+#ifndef SQLITE_OMIT_LOAD_EXTENSION
+/*
+** Open the dynamic library located at zPath and return a handle.
+*/
+static void *rbuVfsDlOpen(sqlite3_vfs *pVfs, const char *zPath){
+  sqlite3_vfs *pRealVfs = ((rbu_vfs*)pVfs)->pRealVfs;
+  return pRealVfs->xDlOpen(pRealVfs, zPath);
+}
+
+/*
+** Populate the buffer zErrMsg (size nByte bytes) with a human readable
+** utf-8 string describing the most recent error encountered associated 
+** with dynamic libraries.
+*/
+static void rbuVfsDlError(sqlite3_vfs *pVfs, int nByte, char *zErrMsg){
+  sqlite3_vfs *pRealVfs = ((rbu_vfs*)pVfs)->pRealVfs;
+  pRealVfs->xDlError(pRealVfs, nByte, zErrMsg);
+}
+
+/*
+** Return a pointer to the symbol zSymbol in the dynamic library pHandle.
+*/
+static void (*rbuVfsDlSym(
+  sqlite3_vfs *pVfs, 
+  void *pArg, 
+  const char *zSym
+))(void){
+  sqlite3_vfs *pRealVfs = ((rbu_vfs*)pVfs)->pRealVfs;
+  return pRealVfs->xDlSym(pRealVfs, pArg, zSym);
+}
+
+/*
+** Close the dynamic library handle pHandle.
+*/
+static void rbuVfsDlClose(sqlite3_vfs *pVfs, void *pHandle){
+  sqlite3_vfs *pRealVfs = ((rbu_vfs*)pVfs)->pRealVfs;
+  pRealVfs->xDlClose(pRealVfs, pHandle);
+}
+#endif /* SQLITE_OMIT_LOAD_EXTENSION */
+
+/*
+** Populate the buffer pointed to by zBufOut with nByte bytes of 
+** random data.
+*/
+static int rbuVfsRandomness(sqlite3_vfs *pVfs, int nByte, char *zBufOut){
+  sqlite3_vfs *pRealVfs = ((rbu_vfs*)pVfs)->pRealVfs;
+  return pRealVfs->xRandomness(pRealVfs, nByte, zBufOut);
+}
+
+/*
+** Sleep for nMicro microseconds. Return the number of microseconds 
+** actually slept.
+*/
+static int rbuVfsSleep(sqlite3_vfs *pVfs, int nMicro){
+  sqlite3_vfs *pRealVfs = ((rbu_vfs*)pVfs)->pRealVfs;
+  return pRealVfs->xSleep(pRealVfs, nMicro);
+}
+
+/*
+** Return the current time as a Julian Day number in *pTimeOut.
+*/
+static int rbuVfsCurrentTime(sqlite3_vfs *pVfs, double *pTimeOut){
+  sqlite3_vfs *pRealVfs = ((rbu_vfs*)pVfs)->pRealVfs;
+  return pRealVfs->xCurrentTime(pRealVfs, pTimeOut);
+}
+
+/*
+** No-op.
+*/
+static int rbuVfsGetLastError(sqlite3_vfs *pVfs, int a, char *b){
+  UNUSED_PARAMETER(pVfs);
+  UNUSED_PARAMETER(a);
+  UNUSED_PARAMETER(b);
+  return 0;
+}
+
+/*
+** Deregister and destroy an RBU vfs created by an earlier call to
+** sqlite3rbu_create_vfs().
+*/
+void sqlite3rbu_destroy_vfs(const char *zName){
+  sqlite3_vfs *pVfs = sqlite3_vfs_find(zName);
+  if( pVfs && pVfs->xOpen==rbuVfsOpen ){
+    sqlite3_mutex_free(((rbu_vfs*)pVfs)->mutex);
+    sqlite3_vfs_unregister(pVfs);
+    sqlite3_free(pVfs);
+  }
+}
+
+/*
+** Create an RBU VFS named zName that accesses the underlying file-system
+** via existing VFS zParent. The new object is registered as a non-default
+** VFS with SQLite before returning.
+*/
+int sqlite3rbu_create_vfs(const char *zName, const char *zParent){
+
+  /* Template for VFS */
+  static sqlite3_vfs vfs_template = {
+    1,                            /* iVersion */
+    0,                            /* szOsFile */
+    0,                            /* mxPathname */
+    0,                            /* pNext */
+    0,                            /* zName */
+    0,                            /* pAppData */
+    rbuVfsOpen,                   /* xOpen */
+    rbuVfsDelete,                 /* xDelete */
+    rbuVfsAccess,                 /* xAccess */
+    rbuVfsFullPathname,           /* xFullPathname */
+
+#ifndef SQLITE_OMIT_LOAD_EXTENSION
+    rbuVfsDlOpen,                 /* xDlOpen */
+    rbuVfsDlError,                /* xDlError */
+    rbuVfsDlSym,                  /* xDlSym */
+    rbuVfsDlClose,                /* xDlClose */
+#else
+    0, 0, 0, 0,
+#endif
+
+    rbuVfsRandomness,             /* xRandomness */
+    rbuVfsSleep,                  /* xSleep */
+    rbuVfsCurrentTime,            /* xCurrentTime */
+    rbuVfsGetLastError,           /* xGetLastError */
+    0,                            /* xCurrentTimeInt64 (version 2) */
+    0, 0, 0                       /* Unimplemented version 3 methods */
+  };
+
+  rbu_vfs *pNew = 0;              /* Newly allocated VFS */
+  int rc = SQLITE_OK;
+  size_t nName;
+  size_t nByte;
+
+  nName = strlen(zName);
+  nByte = sizeof(rbu_vfs) + nName + 1;
+  pNew = (rbu_vfs*)sqlite3_malloc64(nByte);
+  if( pNew==0 ){
+    rc = SQLITE_NOMEM;
+  }else{
+    sqlite3_vfs *pParent;           /* Parent VFS */
+    memset(pNew, 0, nByte);
+    pParent = sqlite3_vfs_find(zParent);
+    if( pParent==0 ){
+      rc = SQLITE_NOTFOUND;
+    }else{
+      char *zSpace;
+      memcpy(&pNew->base, &vfs_template, sizeof(sqlite3_vfs));
+      pNew->base.mxPathname = pParent->mxPathname;
+      pNew->base.szOsFile = sizeof(rbu_file) + pParent->szOsFile;
+      pNew->pRealVfs = pParent;
+      pNew->base.zName = (const char*)(zSpace = (char*)&pNew[1]);
+      memcpy(zSpace, zName, nName);
+
+      /* Allocate the mutex and register the new VFS (not as the default) */
+      pNew->mutex = sqlite3_mutex_alloc(SQLITE_MUTEX_RECURSIVE);
+      if( pNew->mutex==0 ){
+        rc = SQLITE_NOMEM;
+      }else{
+        rc = sqlite3_vfs_register(&pNew->base, 0);
+      }
+    }
+
+    if( rc!=SQLITE_OK ){
+      sqlite3_mutex_free(pNew->mutex);
+      sqlite3_free(pNew);
+    }
+  }
+
+  return rc;
+}
+
+/*
+** Configure the aggregate temp file size limit for this RBU handle.
+*/
+sqlite3_int64 sqlite3rbu_temp_size_limit(sqlite3rbu *pRbu, sqlite3_int64 n){
+  if( n>=0 ){
+    pRbu->szTempLimit = n;
+  }
+  return pRbu->szTempLimit;
+}
+
+sqlite3_int64 sqlite3rbu_temp_size(sqlite3rbu *pRbu){
+  return pRbu->szTemp;
+}
+
+
+/**************************************************************************/
+
+#endif /* !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_RBU) */
diff --git a/ext/rbu/sqlite3rbu.h b/ext/rbu/sqlite3rbu.h
new file mode 100644
index 0000000000000000000000000000000000000000..d156b3178a1e8bbcca31f51f43db3db7823646c5
--- /dev/null
+++ b/ext/rbu/sqlite3rbu.h
@@ -0,0 +1,633 @@
+/*
+** 2014 August 30
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** This file contains the public interface for the RBU extension.
+*/
+
+/*
+** SUMMARY
+**
+** Writing a transaction containing a large number of operations on
+** b-tree indexes that are collectively larger than the available cache
+** memory can be very inefficient.
+**
+** The problem is that in order to update a b-tree, the leaf page (at least)
+** containing the entry being inserted or deleted must be modified. If the
+** working set of leaves is larger than the available cache memory, then a
+** single leaf that is modified more than once as part of the transaction
+** may be loaded from or written to the persistent media multiple times.
+** Additionally, because the index updates are likely to be applied in
+** random order, access to pages within the database is also likely to be in
+** random order, which is itself quite inefficient.
+**
+** One way to improve the situation is to sort the operations on each index
+** by index key before applying them to the b-tree. This leads to an IO
+** pattern that resembles a single linear scan through the index b-tree,
+** and all but guarantees each modified leaf page is loaded and stored
+** exactly once. SQLite uses this trick to improve the performance of
+** CREATE INDEX commands. This extension allows it to be used to improve
+** the performance of large transactions on existing databases.
+**
+** Additionally, this extension allows the work involved in writing the
+** large transaction to be broken down into sub-transactions performed
+** sequentially by separate processes. This is useful if the system cannot
+** guarantee that a single update process will run for long enough to apply
+** the entire update, for example because the update is being applied on a
+** mobile device that is frequently rebooted. Even after the writer process
+** has committed one or more sub-transactions, other database clients continue
+** to read from the original database snapshot. In other words, partially
+** applied transactions are not visible to other clients.
+**
+** "RBU" stands for "Resumable Bulk Update". As in a large database update
+** transmitted via a wireless network to a mobile device. A transaction
+** applied using this extension is hence refered to as an "RBU update".
+**
+**
+** LIMITATIONS
+**
+** An "RBU update" transaction is subject to the following limitations:
+**
+**   * The transaction must consist of INSERT, UPDATE and DELETE operations
+**     only.
+**
+**   * INSERT statements may not use any default values.
+**
+**   * UPDATE and DELETE statements must identify their target rows by
+**     non-NULL PRIMARY KEY values. Rows with NULL values stored in PRIMARY
+**     KEY fields may not be updated or deleted. If the table being written
+**     has no PRIMARY KEY, affected rows must be identified by rowid.
+**
+**   * UPDATE statements may not modify PRIMARY KEY columns.
+**
+**   * No triggers will be fired.
+**
+**   * No foreign key violations are detected or reported.
+**
+**   * CHECK constraints are not enforced.
+**
+**   * No constraint handling mode except for "OR ROLLBACK" is supported.
+**
+**
+** PREPARATION
+**
+** An "RBU update" is stored as a separate SQLite database. A database
+** containing an RBU update is an "RBU database". For each table in the
+** target database to be updated, the RBU database should contain a table
+** named "data_<target name>" containing the same set of columns as the
+** target table, and one more - "rbu_control". The data_% table should
+** have no PRIMARY KEY or UNIQUE constraints, but each column should have
+** the same type as the corresponding column in the target database.
+** The "rbu_control" column should have no type at all. For example, if
+** the target database contains:
+**
+**   CREATE TABLE t1(a INTEGER PRIMARY KEY, b TEXT, c UNIQUE);
+**
+** Then the RBU database should contain:
+**
+**   CREATE TABLE data_t1(a INTEGER, b TEXT, c, rbu_control);
+**
+** The order of the columns in the data_% table does not matter.
+**
+** Instead of a regular table, the RBU database may also contain virtual
+** tables or views named using the data_<target> naming scheme.
+**
+** Instead of the plain data_<target> naming scheme, RBU database tables
+** may also be named data<integer>_<target>, where <integer> is any sequence
+** of zero or more numeric characters (0-9). This can be significant because
+** tables within the RBU database are always processed in order sorted by
+** name. By judicious selection of the <integer> portion of the names
+** of the RBU tables the user can therefore control the order in which they
+** are processed. This can be useful, for example, to ensure that "external
+** content" FTS4 tables are updated before their underlying content tables.
+**
+** If the target database table is a virtual table or a table that has no
+** PRIMARY KEY declaration, the data_% table must also contain a column
+** named "rbu_rowid". This column is mapped to the table's implicit primary
+** key column - "rowid". Virtual tables for which the "rowid" column does
+** not function like a primary key value cannot be updated using RBU. For
+** example, if the target db contains either of the following:
+**
+**   CREATE VIRTUAL TABLE x1 USING fts3(a, b);
+**   CREATE TABLE x1(a, b)
+**
+** then the RBU database should contain:
+**
+**   CREATE TABLE data_x1(a, b, rbu_rowid, rbu_control);
+**
+** All non-hidden columns (i.e. all columns matched by "SELECT *") of the
+** target table must be present in the input table. For virtual tables,
+** hidden columns are optional - they are updated by RBU if present in
+** the input table, or not otherwise. For example, to write to an fts4
+** table with a hidden languageid column such as:
+**
+**   CREATE VIRTUAL TABLE ft1 USING fts4(a, b, languageid='langid');
+**
+** Either of the following input table schemas may be used:
+**
+**   CREATE TABLE data_ft1(a, b, langid, rbu_rowid, rbu_control);
+**   CREATE TABLE data_ft1(a, b, rbu_rowid, rbu_control);
+**
+** For each row to INSERT into the target database as part of the RBU
+** update, the corresponding data_% table should contain a single record
+** with the "rbu_control" column set to contain integer value 0. The
+** other columns should be set to the values that make up the new record
+** to insert.
+**
+** If the target database table has an INTEGER PRIMARY KEY, it is not
+** possible to insert a NULL value into the IPK column. Attempting to
+** do so results in an SQLITE_MISMATCH error.
+**
+** For each row to DELETE from the target database as part of the RBU
+** update, the corresponding data_% table should contain a single record
+** with the "rbu_control" column set to contain integer value 1. The
+** real primary key values of the row to delete should be stored in the
+** corresponding columns of the data_% table. The values stored in the
+** other columns are not used.
+**
+** For each row to UPDATE from the target database as part of the RBU
+** update, the corresponding data_% table should contain a single record
+** with the "rbu_control" column set to contain a value of type text.
+** The real primary key values identifying the row to update should be
+** stored in the corresponding columns of the data_% table row, as should
+** the new values of all columns being update. The text value in the
+** "rbu_control" column must contain the same number of characters as
+** there are columns in the target database table, and must consist entirely
+** of 'x' and '.' characters (or in some special cases 'd' - see below). For
+** each column that is being updated, the corresponding character is set to
+** 'x'. For those that remain as they are, the corresponding character of the
+** rbu_control value should be set to '.'. For example, given the tables
+** above, the update statement:
+**
+**   UPDATE t1 SET c = 'usa' WHERE a = 4;
+**
+** is represented by the data_t1 row created by:
+**
+**   INSERT INTO data_t1(a, b, c, rbu_control) VALUES(4, NULL, 'usa', '..x');
+**
+** Instead of an 'x' character, characters of the rbu_control value specified
+** for UPDATEs may also be set to 'd'. In this case, instead of updating the
+** target table with the value stored in the corresponding data_% column, the
+** user-defined SQL function "rbu_delta()" is invoked and the result stored in
+** the target table column. rbu_delta() is invoked with two arguments - the
+** original value currently stored in the target table column and the
+** value specified in the data_xxx table.
+**
+** For example, this row:
+**
+**   INSERT INTO data_t1(a, b, c, rbu_control) VALUES(4, NULL, 'usa', '..d');
+**
+** is similar to an UPDATE statement such as:
+**
+**   UPDATE t1 SET c = rbu_delta(c, 'usa') WHERE a = 4;
+**
+** Finally, if an 'f' character appears in place of a 'd' or 's' in an
+** ota_control string, the contents of the data_xxx table column is assumed
+** to be a "fossil delta" - a patch to be applied to a blob value in the
+** format used by the fossil source-code management system. In this case
+** the existing value within the target database table must be of type BLOB.
+** It is replaced by the result of applying the specified fossil delta to
+** itself.
+**
+** If the target database table is a virtual table or a table with no PRIMARY
+** KEY, the rbu_control value should not include a character corresponding
+** to the rbu_rowid value. For example, this:
+**
+**   INSERT INTO data_ft1(a, b, rbu_rowid, rbu_control)
+**       VALUES(NULL, 'usa', 12, '.x');
+**
+** causes a result similar to:
+**
+**   UPDATE ft1 SET b = 'usa' WHERE rowid = 12;
+**
+** The data_xxx tables themselves should have no PRIMARY KEY declarations.
+** However, RBU is more efficient if reading the rows in from each data_xxx
+** table in "rowid" order is roughly the same as reading them sorted by
+** the PRIMARY KEY of the corresponding target database table. In other 
+** words, rows should be sorted using the destination table PRIMARY KEY 
+** fields before they are inserted into the data_xxx tables.
+**
+** USAGE
+**
+** The API declared below allows an application to apply an RBU update 
+** stored on disk to an existing target database. Essentially, the 
+** application:
+**
+**     1) Opens an RBU handle using the sqlite3rbu_open() function.
+**
+**     2) Registers any required virtual table modules with the database
+**        handle returned by sqlite3rbu_db(). Also, if required, register
+**        the rbu_delta() implementation.
+**
+**     3) Calls the sqlite3rbu_step() function one or more times on
+**        the new handle. Each call to sqlite3rbu_step() performs a single
+**        b-tree operation, so thousands of calls may be required to apply 
+**        a complete update.
+**
+**     4) Calls sqlite3rbu_close() to close the RBU update handle. If
+**        sqlite3rbu_step() has been called enough times to completely
+**        apply the update to the target database, then the RBU database
+**        is marked as fully applied. Otherwise, the state of the RBU 
+**        update application is saved in the RBU database for later 
+**        resumption.
+**
+** See comments below for more detail on APIs.
+**
+** If an update is only partially applied to the target database by the
+** time sqlite3rbu_close() is called, various state information is saved 
+** within the RBU database. This allows subsequent processes to automatically
+** resume the RBU update from where it left off.
+**
+** To remove all RBU extension state information, returning an RBU database 
+** to its original contents, it is sufficient to drop all tables that begin
+** with the prefix "rbu_"
+**
+** DATABASE LOCKING
+**
+** An RBU update may not be applied to a database in WAL mode. Attempting
+** to do so is an error (SQLITE_ERROR).
+**
+** While an RBU handle is open, a SHARED lock may be held on the target
+** database file. This means it is possible for other clients to read the
+** database, but not to write it.
+**
+** If an RBU update is started and then suspended before it is completed,
+** then an external client writes to the database, then attempting to resume
+** the suspended RBU update is also an error (SQLITE_BUSY).
+*/
+
+#ifndef _SQLITE3RBU_H
+#define _SQLITE3RBU_H
+
+#include "sqlite3.h"              /* Required for error code definitions */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct sqlite3rbu sqlite3rbu;
+
+/*
+** Open an RBU handle.
+**
+** Argument zTarget is the path to the target database. Argument zRbu is
+** the path to the RBU database. Each call to this function must be matched
+** by a call to sqlite3rbu_close(). When opening the databases, RBU passes
+** the SQLITE_CONFIG_URI flag to sqlite3_open_v2(). So if either zTarget
+** or zRbu begin with "file:", it will be interpreted as an SQLite 
+** database URI, not a regular file name.
+**
+** If the zState argument is passed a NULL value, the RBU extension stores 
+** the current state of the update (how many rows have been updated, which 
+** indexes are yet to be updated etc.) within the RBU database itself. This
+** can be convenient, as it means that the RBU application does not need to
+** organize removing a separate state file after the update is concluded. 
+** Or, if zState is non-NULL, it must be a path to a database file in which 
+** the RBU extension can store the state of the update.
+**
+** When resuming an RBU update, the zState argument must be passed the same
+** value as when the RBU update was started.
+**
+** Once the RBU update is finished, the RBU extension does not 
+** automatically remove any zState database file, even if it created it.
+**
+** By default, RBU uses the default VFS to access the files on disk. To
+** use a VFS other than the default, an SQLite "file:" URI containing a
+** "vfs=..." option may be passed as the zTarget option.
+**
+** IMPORTANT NOTE FOR ZIPVFS USERS: The RBU extension works with all of
+** SQLite's built-in VFSs, including the multiplexor VFS. However it does
+** not work out of the box with zipvfs. Refer to the comment describing
+** the zipvfs_create_vfs() API below for details on using RBU with zipvfs.
+*/
+SQLITE_API sqlite3rbu *sqlite3rbu_open(
+  const char *zTarget, 
+  const char *zRbu,
+  const char *zState
+);
+
+/*
+** Open an RBU handle to perform an RBU vacuum on database file zTarget.
+** An RBU vacuum is similar to SQLite's built-in VACUUM command, except
+** that it can be suspended and resumed like an RBU update.
+**
+** The second argument to this function identifies a database in which 
+** to store the state of the RBU vacuum operation if it is suspended. The 
+** first time sqlite3rbu_vacuum() is called, to start an RBU vacuum
+** operation, the state database should either not exist or be empty
+** (contain no tables). If an RBU vacuum is suspended by calling 
+** sqlite3rbu_close() on the RBU handle before sqlite3rbu_step() has
+** returned SQLITE_DONE, the vacuum state is stored in the state database. 
+** The vacuum can be resumed by calling this function to open a new RBU
+** handle specifying the same target and state databases.
+**
+** If the second argument passed to this function is NULL, then the
+** name of the state database is "<database>-vacuum", where <database>
+** is the name of the target database file. In this case, on UNIX, if the
+** state database is not already present in the file-system, it is created
+** with the same permissions as the target db is made. 
+**
+** With an RBU vacuum, it is an SQLITE_MISUSE error if the name of the 
+** state database ends with "-vactmp". This name is reserved for internal 
+** use.
+**
+** This function does not delete the state database after an RBU vacuum
+** is completed, even if it created it. However, if the call to
+** sqlite3rbu_close() returns any value other than SQLITE_OK, the contents
+** of the state tables within the state database are zeroed. This way,
+** the next call to sqlite3rbu_vacuum() opens a handle that starts a 
+** new RBU vacuum operation.
+**
+** As with sqlite3rbu_open(), Zipvfs users should rever to the comment
+** describing the sqlite3rbu_create_vfs() API function below for 
+** a description of the complications associated with using RBU with 
+** zipvfs databases.
+*/
+SQLITE_API sqlite3rbu *sqlite3rbu_vacuum(
+  const char *zTarget, 
+  const char *zState
+);
+
+/*
+** Configure a limit for the amount of temp space that may be used by
+** the RBU handle passed as the first argument. The new limit is specified
+** in bytes by the second parameter. If it is positive, the limit is updated.
+** If the second parameter to this function is passed zero, then the limit
+** is removed entirely. If the second parameter is negative, the limit is
+** not modified (this is useful for querying the current limit).
+**
+** In all cases the returned value is the current limit in bytes (zero 
+** indicates unlimited).
+**
+** If the temp space limit is exceeded during operation, an SQLITE_FULL
+** error is returned.
+*/
+SQLITE_API sqlite3_int64 sqlite3rbu_temp_size_limit(sqlite3rbu*, sqlite3_int64);
+
+/*
+** Return the current amount of temp file space, in bytes, currently used by 
+** the RBU handle passed as the only argument.
+*/
+SQLITE_API sqlite3_int64 sqlite3rbu_temp_size(sqlite3rbu*);
+
+/*
+** Internally, each RBU connection uses a separate SQLite database 
+** connection to access the target and rbu update databases. This
+** API allows the application direct access to these database handles.
+**
+** The first argument passed to this function must be a valid, open, RBU
+** handle. The second argument should be passed zero to access the target
+** database handle, or non-zero to access the rbu update database handle.
+** Accessing the underlying database handles may be useful in the
+** following scenarios:
+**
+**   * If any target tables are virtual tables, it may be necessary to
+**     call sqlite3_create_module() on the target database handle to 
+**     register the required virtual table implementations.
+**
+**   * If the data_xxx tables in the RBU source database are virtual 
+**     tables, the application may need to call sqlite3_create_module() on
+**     the rbu update db handle to any required virtual table
+**     implementations.
+**
+**   * If the application uses the "rbu_delta()" feature described above,
+**     it must use sqlite3_create_function() or similar to register the
+**     rbu_delta() implementation with the target database handle.
+**
+** If an error has occurred, either while opening or stepping the RBU object,
+** this function may return NULL. The error code and message may be collected
+** when sqlite3rbu_close() is called.
+**
+** Database handles returned by this function remain valid until the next
+** call to any sqlite3rbu_xxx() function other than sqlite3rbu_db().
+*/
+SQLITE_API sqlite3 *sqlite3rbu_db(sqlite3rbu*, int bRbu);
+
+/*
+** Do some work towards applying the RBU update to the target db. 
+**
+** Return SQLITE_DONE if the update has been completely applied, or 
+** SQLITE_OK if no error occurs but there remains work to do to apply
+** the RBU update. If an error does occur, some other error code is 
+** returned. 
+**
+** Once a call to sqlite3rbu_step() has returned a value other than
+** SQLITE_OK, all subsequent calls on the same RBU handle are no-ops
+** that immediately return the same value.
+*/
+SQLITE_API int sqlite3rbu_step(sqlite3rbu *pRbu);
+
+/*
+** Force RBU to save its state to disk.
+**
+** If a power failure or application crash occurs during an update, following
+** system recovery RBU may resume the update from the point at which the state
+** was last saved. In other words, from the most recent successful call to 
+** sqlite3rbu_close() or this function.
+**
+** SQLITE_OK is returned if successful, or an SQLite error code otherwise.
+*/
+SQLITE_API int sqlite3rbu_savestate(sqlite3rbu *pRbu);
+
+/*
+** Close an RBU handle. 
+**
+** If the RBU update has been completely applied, mark the RBU database
+** as fully applied. Otherwise, assuming no error has occurred, save the
+** current state of the RBU update appliation to the RBU database.
+**
+** If an error has already occurred as part of an sqlite3rbu_step()
+** or sqlite3rbu_open() call, or if one occurs within this function, an
+** SQLite error code is returned. Additionally, if pzErrmsg is not NULL,
+** *pzErrmsg may be set to point to a buffer containing a utf-8 formatted
+** English language error message. It is the responsibility of the caller to
+** eventually free any such buffer using sqlite3_free().
+**
+** Otherwise, if no error occurs, this function returns SQLITE_OK if the
+** update has been partially applied, or SQLITE_DONE if it has been 
+** completely applied.
+*/
+SQLITE_API int sqlite3rbu_close(sqlite3rbu *pRbu, char **pzErrmsg);
+
+/*
+** Return the total number of key-value operations (inserts, deletes or 
+** updates) that have been performed on the target database since the
+** current RBU update was started.
+*/
+SQLITE_API sqlite3_int64 sqlite3rbu_progress(sqlite3rbu *pRbu);
+
+/*
+** Obtain permyriadage (permyriadage is to 10000 as percentage is to 100) 
+** progress indications for the two stages of an RBU update. This API may
+** be useful for driving GUI progress indicators and similar.
+**
+** An RBU update is divided into two stages:
+**
+**   * Stage 1, in which changes are accumulated in an oal/wal file, and
+**   * Stage 2, in which the contents of the wal file are copied into the
+**     main database.
+**
+** The update is visible to non-RBU clients during stage 2. During stage 1
+** non-RBU reader clients may see the original database.
+**
+** If this API is called during stage 2 of the update, output variable 
+** (*pnOne) is set to 10000 to indicate that stage 1 has finished and (*pnTwo)
+** to a value between 0 and 10000 to indicate the permyriadage progress of
+** stage 2. A value of 5000 indicates that stage 2 is half finished, 
+** 9000 indicates that it is 90% finished, and so on.
+**
+** If this API is called during stage 1 of the update, output variable 
+** (*pnTwo) is set to 0 to indicate that stage 2 has not yet started. The
+** value to which (*pnOne) is set depends on whether or not the RBU 
+** database contains an "rbu_count" table. The rbu_count table, if it 
+** exists, must contain the same columns as the following:
+**
+**   CREATE TABLE rbu_count(tbl TEXT PRIMARY KEY, cnt INTEGER) WITHOUT ROWID;
+**
+** There must be one row in the table for each source (data_xxx) table within
+** the RBU database. The 'tbl' column should contain the name of the source
+** table. The 'cnt' column should contain the number of rows within the
+** source table.
+**
+** If the rbu_count table is present and populated correctly and this
+** API is called during stage 1, the *pnOne output variable is set to the
+** permyriadage progress of the same stage. If the rbu_count table does
+** not exist, then (*pnOne) is set to -1 during stage 1. If the rbu_count
+** table exists but is not correctly populated, the value of the *pnOne
+** output variable during stage 1 is undefined.
+*/
+SQLITE_API void sqlite3rbu_bp_progress(sqlite3rbu *pRbu, int *pnOne, int*pnTwo);
+
+/*
+** Obtain an indication as to the current stage of an RBU update or vacuum.
+** This function always returns one of the SQLITE_RBU_STATE_XXX constants
+** defined in this file. Return values should be interpreted as follows:
+**
+** SQLITE_RBU_STATE_OAL:
+**   RBU is currently building a *-oal file. The next call to sqlite3rbu_step()
+**   may either add further data to the *-oal file, or compute data that will
+**   be added by a subsequent call.
+**
+** SQLITE_RBU_STATE_MOVE:
+**   RBU has finished building the *-oal file. The next call to sqlite3rbu_step()
+**   will move the *-oal file to the equivalent *-wal path. If the current
+**   operation is an RBU update, then the updated version of the database
+**   file will become visible to ordinary SQLite clients following the next
+**   call to sqlite3rbu_step().
+**
+** SQLITE_RBU_STATE_CHECKPOINT:
+**   RBU is currently performing an incremental checkpoint. The next call to
+**   sqlite3rbu_step() will copy a page of data from the *-wal file into
+**   the target database file.
+**
+** SQLITE_RBU_STATE_DONE:
+**   The RBU operation has finished. Any subsequent calls to sqlite3rbu_step()
+**   will immediately return SQLITE_DONE.
+**
+** SQLITE_RBU_STATE_ERROR:
+**   An error has occurred. Any subsequent calls to sqlite3rbu_step() will
+**   immediately return the SQLite error code associated with the error.
+*/
+#define SQLITE_RBU_STATE_OAL        1
+#define SQLITE_RBU_STATE_MOVE       2
+#define SQLITE_RBU_STATE_CHECKPOINT 3
+#define SQLITE_RBU_STATE_DONE       4
+#define SQLITE_RBU_STATE_ERROR      5
+
+SQLITE_API int sqlite3rbu_state(sqlite3rbu *pRbu);
+
+/*
+** As part of applying an RBU update or performing an RBU vacuum operation,
+** the system must at one point move the *-oal file to the equivalent *-wal
+** path. Normally, it does this by invoking POSIX function rename(2) directly.
+** Except on WINCE platforms, where it uses win32 API MoveFileW(). This 
+** function may be used to register a callback that the RBU module will invoke
+** instead of one of these APIs. 
+**
+** If a callback is registered with an RBU handle, it invokes it instead
+** of rename(2) when it needs to move a file within the file-system. The
+** first argument passed to the xRename() callback is a copy of the second
+** argument (pArg) passed to this function. The second is the full path
+** to the file to move and the third the full path to which it should be
+** moved. The callback function should return SQLITE_OK to indicate 
+** success. If an error occurs, it should return an SQLite error code.
+** In this case the RBU operation will be abandoned and the error returned
+** to the RBU user.
+**
+** Passing a NULL pointer in place of the xRename argument to this function
+** restores the default behaviour.
+*/
+SQLITE_API void sqlite3rbu_rename_handler(
+  sqlite3rbu *pRbu, 
+  void *pArg,
+  int (*xRename)(void *pArg, const char *zOld, const char *zNew)
+);
+
+
+/*
+** Create an RBU VFS named zName that accesses the underlying file-system
+** via existing VFS zParent. Or, if the zParent parameter is passed NULL, 
+** then the new RBU VFS uses the default system VFS to access the file-system.
+** The new object is registered as a non-default VFS with SQLite before 
+** returning.
+**
+** Part of the RBU implementation uses a custom VFS object. Usually, this
+** object is created and deleted automatically by RBU. 
+**
+** The exception is for applications that also use zipvfs. In this case,
+** the custom VFS must be explicitly created by the user before the RBU
+** handle is opened. The RBU VFS should be installed so that the zipvfs
+** VFS uses the RBU VFS, which in turn uses any other VFS layers in use 
+** (for example multiplexor) to access the file-system. For example,
+** to assemble an RBU enabled VFS stack that uses both zipvfs and 
+** multiplexor (error checking omitted):
+**
+**     // Create a VFS named "multiplex" (not the default).
+**     sqlite3_multiplex_initialize(0, 0);
+**
+**     // Create an rbu VFS named "rbu" that uses multiplexor. If the
+**     // second argument were replaced with NULL, the "rbu" VFS would
+**     // access the file-system via the system default VFS, bypassing the
+**     // multiplexor.
+**     sqlite3rbu_create_vfs("rbu", "multiplex");
+**
+**     // Create a zipvfs VFS named "zipvfs" that uses rbu.
+**     zipvfs_create_vfs_v3("zipvfs", "rbu", 0, xCompressorAlgorithmDetector);
+**
+**     // Make zipvfs the default VFS.
+**     sqlite3_vfs_register(sqlite3_vfs_find("zipvfs"), 1);
+**
+** Because the default VFS created above includes a RBU functionality, it
+** may be used by RBU clients. Attempting to use RBU with a zipvfs VFS stack
+** that does not include the RBU layer results in an error.
+**
+** The overhead of adding the "rbu" VFS to the system is negligible for 
+** non-RBU users. There is no harm in an application accessing the 
+** file-system via "rbu" all the time, even if it only uses RBU functionality 
+** occasionally.
+*/
+SQLITE_API int sqlite3rbu_create_vfs(const char *zName, const char *zParent);
+
+/*
+** Deregister and destroy an RBU vfs created by an earlier call to
+** sqlite3rbu_create_vfs().
+**
+** VFS objects are not reference counted. If a VFS object is destroyed
+** before all database handles that use it have been closed, the results
+** are undefined.
+*/
+SQLITE_API void sqlite3rbu_destroy_vfs(const char *zName);
+
+#ifdef __cplusplus
+}  /* end of the 'extern "C"' block */
+#endif
+
+#endif /* _SQLITE3RBU_H */
diff --git a/ext/rbu/test_rbu.c b/ext/rbu/test_rbu.c
new file mode 100644
index 0000000000000000000000000000000000000000..969d6208d86b721dc4f9bae117518598f0f607fd
--- /dev/null
+++ b/ext/rbu/test_rbu.c
@@ -0,0 +1,431 @@
+/*
+** 2015 February 16
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+*/
+
+#include "sqlite3.h"
+
+#if defined(SQLITE_TEST)
+#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_RBU)
+
+#include "sqlite3rbu.h"
+#include "tclsqlite.h"
+#include <assert.h>
+#include <string.h>
+
+typedef struct TestRbu TestRbu;
+struct TestRbu {
+  sqlite3rbu *pRbu;
+  Tcl_Interp *interp;
+  Tcl_Obj *xRename;
+};
+
+/* From main.c */ 
+extern const char *sqlite3ErrName(int);
+extern int sqlite3TestMakePointerStr(Tcl_Interp*, char*, void*);
+
+void test_rbu_delta(sqlite3_context *pCtx, int nArg, sqlite3_value **apVal){
+  Tcl_Interp *interp = (Tcl_Interp*)sqlite3_user_data(pCtx);
+  Tcl_Obj *pScript;
+  int i;
+
+  pScript = Tcl_NewObj();
+  Tcl_IncrRefCount(pScript);
+  Tcl_ListObjAppendElement(0, pScript, Tcl_NewStringObj("rbu_delta", -1));
+  for(i=0; i<nArg; i++){
+    sqlite3_value *pIn = apVal[i];
+    const char *z = (const char*)sqlite3_value_text(pIn);
+    Tcl_ListObjAppendElement(0, pScript, Tcl_NewStringObj(z, -1));
+  }
+
+  if( TCL_OK==Tcl_EvalObjEx(interp, pScript, TCL_GLOBAL_ONLY) ){
+    const char *z = Tcl_GetStringResult(interp);
+    sqlite3_result_text(pCtx, z, -1, SQLITE_TRANSIENT);
+  }else{
+    Tcl_BackgroundError(interp);
+  }
+
+  Tcl_DecrRefCount(pScript);
+}
+
+static int xRenameCallback(void *pArg, const char *zOld, const char *zNew){
+  int rc = SQLITE_OK;
+  TestRbu *pTest = (TestRbu*)pArg;
+  Tcl_Obj *pEval = Tcl_DuplicateObj(pTest->xRename);
+
+  Tcl_IncrRefCount(pEval);
+  Tcl_ListObjAppendElement(pTest->interp, pEval, Tcl_NewStringObj(zOld, -1));
+  Tcl_ListObjAppendElement(pTest->interp, pEval, Tcl_NewStringObj(zNew, -1));
+
+  rc = Tcl_EvalObjEx(pTest->interp, pEval, TCL_GLOBAL_ONLY);
+  Tcl_DecrRefCount(pEval);
+
+  return rc ? SQLITE_IOERR : SQLITE_OK;
+}
+
+static int SQLITE_TCLAPI test_sqlite3rbu_cmd(
+  ClientData clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  int ret = TCL_OK;
+  TestRbu *pTest = (TestRbu*)clientData;
+  sqlite3rbu *pRbu = pTest->pRbu;
+  struct RbuCmd {
+    const char *zName;
+    int nArg;
+    const char *zUsage;
+  } aCmd[] = {
+    {"step", 2, ""},                 /* 0 */
+    {"close", 2, ""},                /* 1 */
+    {"create_rbu_delta", 2, ""},     /* 2 */
+    {"savestate", 2, ""},            /* 3 */
+    {"dbMain_eval", 3, "SQL"},       /* 4 */
+    {"bp_progress", 2, ""},          /* 5 */
+    {"db", 3, "RBU"},                /* 6 */
+    {"state", 2, ""},                /* 7 */
+    {"progress", 2, ""},             /* 8 */
+    {"close_no_error", 2, ""},       /* 9 */
+    {"temp_size_limit", 3, "LIMIT"}, /* 10 */
+    {"temp_size", 2, ""},            /* 11 */
+    {"dbRbu_eval", 3, "SQL"},        /* 12 */
+    {"rename_handler", 3, "SCRIPT"},/* 13 */
+    {0,0,0}
+  };
+  int iCmd;
+
+  if( objc<2 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "METHOD");
+    return TCL_ERROR;
+  }
+  ret = Tcl_GetIndexFromObjStruct(
+      interp, objv[1], aCmd, sizeof(aCmd[0]), "method", 0, &iCmd
+  );
+  if( ret ) return TCL_ERROR;
+  if( objc!=aCmd[iCmd].nArg ){
+    Tcl_WrongNumArgs(interp, 1, objv, aCmd[iCmd].zUsage);
+    return TCL_ERROR;
+  }
+
+  switch( iCmd ){
+    case 0: /* step */ {
+      int rc = sqlite3rbu_step(pRbu);
+      Tcl_SetObjResult(interp, Tcl_NewStringObj(sqlite3ErrName(rc), -1));
+      break;
+    }
+
+    case 9: /* close_no_error */ 
+    case 1: /* close */ {
+      char *zErrmsg = 0;
+      int rc;
+      Tcl_DeleteCommand(interp, Tcl_GetString(objv[0]));
+      if( iCmd==1 ){
+        rc = sqlite3rbu_close(pRbu, &zErrmsg);
+      }else{
+        rc = sqlite3rbu_close(pRbu, 0);
+      }
+      if( rc==SQLITE_OK || rc==SQLITE_DONE ){
+        Tcl_SetObjResult(interp, Tcl_NewStringObj(sqlite3ErrName(rc), -1));
+        assert( zErrmsg==0 );
+      }else{
+        Tcl_SetObjResult(interp, Tcl_NewStringObj(sqlite3ErrName(rc), -1));
+        if( zErrmsg ){
+          Tcl_AppendResult(interp, " - ", zErrmsg, 0);
+          sqlite3_free(zErrmsg);
+        }
+        ret = TCL_ERROR;
+      }
+      if( pTest->xRename ) Tcl_DecrRefCount(pTest->xRename);
+      ckfree(pTest);
+      break;
+    }
+
+    case 2: /* create_rbu_delta */ {
+      sqlite3 *db = sqlite3rbu_db(pRbu, 0);
+      int rc = sqlite3_create_function(
+          db, "rbu_delta", -1, SQLITE_UTF8, (void*)interp, test_rbu_delta, 0, 0
+      );
+      Tcl_SetObjResult(interp, Tcl_NewStringObj(sqlite3ErrName(rc), -1));
+      ret = (rc==SQLITE_OK ? TCL_OK : TCL_ERROR);
+      break;
+    }
+
+    case 3: /* savestate */ {
+      int rc = sqlite3rbu_savestate(pRbu);
+      Tcl_SetObjResult(interp, Tcl_NewStringObj(sqlite3ErrName(rc), -1));
+      ret = (rc==SQLITE_OK ? TCL_OK : TCL_ERROR);
+      break;
+    }
+
+    case 12: /* dbRbu_eval */ 
+    case 4:  /* dbMain_eval */ {
+      sqlite3 *db = sqlite3rbu_db(pRbu, (iCmd==12));
+      int rc = sqlite3_exec(db, Tcl_GetString(objv[2]), 0, 0, 0);
+      if( rc!=SQLITE_OK ){
+        Tcl_SetObjResult(interp, Tcl_NewStringObj(sqlite3_errmsg(db), -1));
+        ret = TCL_ERROR;
+      }
+      break;
+    }
+
+    case 5: /* bp_progress */ {
+      int one, two;
+      Tcl_Obj *pObj;
+      sqlite3rbu_bp_progress(pRbu, &one, &two);
+
+      pObj = Tcl_NewObj();
+      Tcl_ListObjAppendElement(interp, pObj, Tcl_NewIntObj(one));
+      Tcl_ListObjAppendElement(interp, pObj, Tcl_NewIntObj(two));
+      Tcl_SetObjResult(interp, pObj);
+      break;
+    }
+
+    case 6: /* db */ {
+      int bArg;
+      if( Tcl_GetBooleanFromObj(interp, objv[2], &bArg) ){
+        ret = TCL_ERROR;
+      }else{
+        char zBuf[50];
+        sqlite3 *db = sqlite3rbu_db(pRbu, bArg);
+        if( sqlite3TestMakePointerStr(interp, zBuf, (void*)db) ){
+          ret = TCL_ERROR;
+        }else{
+          Tcl_SetResult(interp, zBuf, TCL_VOLATILE);
+        }
+      }
+      break;
+    }
+    case 7: /* state */ {
+      const char *aRes[] = { 0, "oal", "move", "checkpoint", "done", "error" };
+      int eState = sqlite3rbu_state(pRbu);
+      assert( eState>0 && eState<=5 );
+      Tcl_SetResult(interp, (char*)aRes[eState], TCL_STATIC);
+      break;
+    }
+    case 8: /* progress */ {
+      sqlite3_int64 nStep =  sqlite3rbu_progress(pRbu);
+      Tcl_SetObjResult(interp, Tcl_NewWideIntObj(nStep));
+      break;
+    }
+                           
+    case 10: /* temp_size_limit */ {
+      sqlite3_int64 nLimit;
+      if( Tcl_GetWideIntFromObj(interp, objv[2], &nLimit) ){
+        ret = TCL_ERROR;
+      }else{
+        nLimit = sqlite3rbu_temp_size_limit(pRbu, nLimit);
+        Tcl_SetObjResult(interp, Tcl_NewWideIntObj(nLimit));
+      }
+      break;
+    }
+    case 11: /* temp_size */ {
+      sqlite3_int64 sz = sqlite3rbu_temp_size(pRbu);
+      Tcl_SetObjResult(interp, Tcl_NewWideIntObj(sz));
+      break;
+    }
+
+    case 13: /* rename_handler */ {
+      Tcl_Obj *pScript = objv[2];
+      assert( !sqlite3_stricmp(aCmd[13].zName, "rename_handler") );
+      if( Tcl_GetCharLength(pScript)==0 ){
+        sqlite3rbu_rename_handler(pRbu, 0, 0);
+      }else{
+        pTest->xRename = Tcl_DuplicateObj(pScript);
+        Tcl_IncrRefCount(pTest->xRename);
+        sqlite3rbu_rename_handler(pRbu, pTest, xRenameCallback);
+      }
+      break;
+    }
+
+    default: /* seems unlikely */
+      assert( !"cannot happen" );
+      break;
+  }
+
+  return ret;
+}
+
+static void createRbuWrapper(
+  Tcl_Interp *interp,
+  const char *zCmd,
+  sqlite3rbu *pRbu
+){
+  TestRbu *pTest = (TestRbu*)ckalloc(sizeof(TestRbu));
+  memset(pTest, 0, sizeof(TestRbu));
+  pTest->pRbu = pRbu;
+  pTest->interp = interp;
+  Tcl_CreateObjCommand(interp, zCmd, test_sqlite3rbu_cmd, (ClientData)pTest, 0);
+}
+
+/*
+** Tclcmd: sqlite3rbu CMD <target-db> <rbu-db> ?<state-db>?
+*/
+static int SQLITE_TCLAPI test_sqlite3rbu(
+  ClientData clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  sqlite3rbu *pRbu = 0;
+  const char *zCmd;
+  const char *zTarget;
+  const char *zRbu;
+  const char *zStateDb = 0;
+
+  if( objc!=4 && objc!=5 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "NAME TARGET-DB RBU-DB ?STATE-DB?");
+    return TCL_ERROR;
+  }
+  zCmd = Tcl_GetString(objv[1]);
+  zTarget = Tcl_GetString(objv[2]);
+  zRbu = Tcl_GetString(objv[3]);
+  if( objc==5 ) zStateDb = Tcl_GetString(objv[4]);
+
+  pRbu = sqlite3rbu_open(zTarget, zRbu, zStateDb);
+  createRbuWrapper(interp, zCmd, pRbu);
+  Tcl_SetObjResult(interp, objv[1]);
+  return TCL_OK;
+}
+
+/*
+** Tclcmd: sqlite3rbu_vacuum CMD <target-db> <state-db>
+*/
+static int SQLITE_TCLAPI test_sqlite3rbu_vacuum(
+  ClientData clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  sqlite3rbu *pRbu = 0;
+  const char *zCmd;
+  const char *zTarget;
+  const char *zStateDb = 0;
+
+  if( objc!=3 && objc!=4 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "NAME TARGET-DB ?STATE-DB?");
+    return TCL_ERROR;
+  }
+  zCmd = Tcl_GetString(objv[1]);
+  zTarget = Tcl_GetString(objv[2]);
+  if( objc==4 ) zStateDb = Tcl_GetString(objv[3]);
+  if( zStateDb && zStateDb[0]=='\0' ) zStateDb = 0;
+
+  pRbu = sqlite3rbu_vacuum(zTarget, zStateDb);
+  createRbuWrapper(interp, zCmd, pRbu);
+  Tcl_SetObjResult(interp, objv[1]);
+  return TCL_OK;
+}
+
+/*
+** Tclcmd: sqlite3rbu_create_vfs ?-default? NAME PARENT
+*/
+static int SQLITE_TCLAPI test_sqlite3rbu_create_vfs(
+  ClientData clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  const char *zName;
+  const char *zParent;
+  int rc;
+
+  if( objc!=3 && objc!=4 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "?-default? NAME PARENT");
+    return TCL_ERROR;
+  }
+
+  zName = Tcl_GetString(objv[objc-2]);
+  zParent = Tcl_GetString(objv[objc-1]);
+  if( zParent[0]=='\0' ) zParent = 0;
+
+  rc = sqlite3rbu_create_vfs(zName, zParent);
+  if( rc!=SQLITE_OK ){
+    Tcl_SetObjResult(interp, Tcl_NewStringObj(sqlite3ErrName(rc), -1));
+    return TCL_ERROR;
+  }else if( objc==4 ){
+    sqlite3_vfs *pVfs = sqlite3_vfs_find(zName);
+    sqlite3_vfs_register(pVfs, 1);
+  }
+
+  Tcl_ResetResult(interp);
+  return TCL_OK;
+}
+
+/*
+** Tclcmd: sqlite3rbu_destroy_vfs NAME
+*/
+static int SQLITE_TCLAPI test_sqlite3rbu_destroy_vfs(
+  ClientData clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  const char *zName;
+
+  if( objc!=2 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "NAME");
+    return TCL_ERROR;
+  }
+
+  zName = Tcl_GetString(objv[1]);
+  sqlite3rbu_destroy_vfs(zName);
+  return TCL_OK;
+}
+
+/*
+** Tclcmd: sqlite3rbu_internal_test
+*/
+static int SQLITE_TCLAPI test_sqlite3rbu_internal_test(
+  ClientData clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  sqlite3 *db;
+
+  if( objc!=1 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "");
+    return TCL_ERROR;
+  }
+
+  db = sqlite3rbu_db(0, 0);
+  if( db!=0 ){
+    Tcl_AppendResult(interp, "sqlite3rbu_db(0, 0)!=0", 0);
+    return TCL_ERROR;
+  }
+
+  return TCL_OK;
+}
+
+int SqliteRbu_Init(Tcl_Interp *interp){ 
+  static struct {
+     char *zName;
+     Tcl_ObjCmdProc *xProc;
+  } aObjCmd[] = {
+    { "sqlite3rbu", test_sqlite3rbu },
+    { "sqlite3rbu_vacuum", test_sqlite3rbu_vacuum },
+    { "sqlite3rbu_create_vfs", test_sqlite3rbu_create_vfs },
+    { "sqlite3rbu_destroy_vfs", test_sqlite3rbu_destroy_vfs },
+    { "sqlite3rbu_internal_test", test_sqlite3rbu_internal_test },
+  };
+  int i;
+  for(i=0; i<sizeof(aObjCmd)/sizeof(aObjCmd[0]); i++){
+    Tcl_CreateObjCommand(interp, aObjCmd[i].zName, aObjCmd[i].xProc, 0, 0);
+  }
+  return TCL_OK;
+}
+
+#else
+#include "tclsqlite.h"
+int SqliteRbu_Init(Tcl_Interp *interp){ return TCL_OK; }
+#endif /* !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_RBU) */
+#endif /* defined(SQLITE_TEST) */
diff --git a/ext/recover/dbdata.c b/ext/recover/dbdata.c
new file mode 100644
index 0000000000000000000000000000000000000000..001840b17ef639a80a0a0b1df8db5538b22289d7
--- /dev/null
+++ b/ext/recover/dbdata.c
@@ -0,0 +1,1020 @@
+/*
+** 2019-04-17
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This file contains an implementation of two eponymous virtual tables,
+** "sqlite_dbdata" and "sqlite_dbptr". Both modules require that the
+** "sqlite_dbpage" eponymous virtual table be available.
+**
+** SQLITE_DBDATA:
+**   sqlite_dbdata is used to extract data directly from a database b-tree
+**   page and its associated overflow pages, bypassing the b-tree layer.
+**   The table schema is equivalent to:
+**
+**     CREATE TABLE sqlite_dbdata(
+**       pgno INTEGER,
+**       cell INTEGER,
+**       field INTEGER,
+**       value ANY,
+**       schema TEXT HIDDEN
+**     );
+**
+**   IMPORTANT: THE VIRTUAL TABLE SCHEMA ABOVE IS SUBJECT TO CHANGE. IN THE
+**   FUTURE NEW NON-HIDDEN COLUMNS MAY BE ADDED BETWEEN "value" AND
+**   "schema".
+**
+**   Each page of the database is inspected. If it cannot be interpreted as
+**   a b-tree page, or if it is a b-tree page containing 0 entries, the
+**   sqlite_dbdata table contains no rows for that page.  Otherwise, the
+**   table contains one row for each field in the record associated with
+**   each cell on the page. For intkey b-trees, the key value is stored in
+**   field -1.
+**
+**   For example, for the database:
+**
+**     CREATE TABLE t1(a, b);     -- root page is page 2
+**     INSERT INTO t1(rowid, a, b) VALUES(5, 'v', 'five');
+**     INSERT INTO t1(rowid, a, b) VALUES(10, 'x', 'ten');
+**
+**   the sqlite_dbdata table contains, as well as from entries related to 
+**   page 1, content equivalent to:
+**
+**     INSERT INTO sqlite_dbdata(pgno, cell, field, value) VALUES
+**         (2, 0, -1, 5     ),
+**         (2, 0,  0, 'v'   ),
+**         (2, 0,  1, 'five'),
+**         (2, 1, -1, 10    ),
+**         (2, 1,  0, 'x'   ),
+**         (2, 1,  1, 'ten' );
+**
+**   If database corruption is encountered, this module does not report an
+**   error. Instead, it attempts to extract as much data as possible and
+**   ignores the corruption.
+**
+** SQLITE_DBPTR:
+**   The sqlite_dbptr table has the following schema:
+**
+**     CREATE TABLE sqlite_dbptr(
+**       pgno INTEGER,
+**       child INTEGER,
+**       schema TEXT HIDDEN
+**     );
+**
+**   It contains one entry for each b-tree pointer between a parent and
+**   child page in the database.
+*/
+
+#if !defined(SQLITEINT_H) 
+#include "sqlite3.h"
+
+typedef unsigned char u8;
+typedef unsigned int u32;
+
+#endif
+#include <string.h>
+#include <assert.h>
+
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+
+#define DBDATA_PADDING_BYTES 100 
+
+typedef struct DbdataTable DbdataTable;
+typedef struct DbdataCursor DbdataCursor;
+typedef struct DbdataBuffer DbdataBuffer;
+
+/*
+** Buffer type.
+*/
+struct DbdataBuffer {
+  u8 *aBuf;
+  sqlite3_int64 nBuf;
+};
+
+/* Cursor object */
+struct DbdataCursor {
+  sqlite3_vtab_cursor base;       /* Base class.  Must be first */
+  sqlite3_stmt *pStmt;            /* For fetching database pages */
+
+  int iPgno;                      /* Current page number */
+  u8 *aPage;                      /* Buffer containing page */
+  int nPage;                      /* Size of aPage[] in bytes */
+  int nCell;                      /* Number of cells on aPage[] */
+  int iCell;                      /* Current cell number */
+  int bOnePage;                   /* True to stop after one page */
+  int szDb;
+  sqlite3_int64 iRowid;
+
+  /* Only for the sqlite_dbdata table */
+  DbdataBuffer rec;
+  sqlite3_int64 nRec;             /* Size of pRec[] in bytes */
+  sqlite3_int64 nHdr;             /* Size of header in bytes */
+  int iField;                     /* Current field number */
+  u8 *pHdrPtr;
+  u8 *pPtr;
+  u32 enc;                        /* Text encoding */
+  
+  sqlite3_int64 iIntkey;          /* Integer key value */
+};
+
+/* Table object */
+struct DbdataTable {
+  sqlite3_vtab base;              /* Base class.  Must be first */
+  sqlite3 *db;                    /* The database connection */
+  sqlite3_stmt *pStmt;            /* For fetching database pages */
+  int bPtr;                       /* True for sqlite3_dbptr table */
+};
+
+/* Column and schema definitions for sqlite_dbdata */
+#define DBDATA_COLUMN_PGNO        0
+#define DBDATA_COLUMN_CELL        1
+#define DBDATA_COLUMN_FIELD       2
+#define DBDATA_COLUMN_VALUE       3
+#define DBDATA_COLUMN_SCHEMA      4
+#define DBDATA_SCHEMA             \
+      "CREATE TABLE x("           \
+      "  pgno INTEGER,"           \
+      "  cell INTEGER,"           \
+      "  field INTEGER,"          \
+      "  value ANY,"              \
+      "  schema TEXT HIDDEN"      \
+      ")"
+
+/* Column and schema definitions for sqlite_dbptr */
+#define DBPTR_COLUMN_PGNO         0
+#define DBPTR_COLUMN_CHILD        1
+#define DBPTR_COLUMN_SCHEMA       2
+#define DBPTR_SCHEMA              \
+      "CREATE TABLE x("           \
+      "  pgno INTEGER,"           \
+      "  child INTEGER,"          \
+      "  schema TEXT HIDDEN"      \
+      ")"
+
+/*
+** Ensure the buffer passed as the first argument is at least nMin bytes
+** in size. If an error occurs while attempting to resize the buffer,
+** SQLITE_NOMEM is returned. Otherwise, SQLITE_OK.
+*/
+static int dbdataBufferSize(DbdataBuffer *pBuf, sqlite3_int64 nMin){
+  if( nMin>pBuf->nBuf ){
+    sqlite3_int64 nNew = nMin+16384;
+    u8 *aNew = (u8*)sqlite3_realloc64(pBuf->aBuf, nNew);
+
+    if( aNew==0 ) return SQLITE_NOMEM;
+    pBuf->aBuf = aNew;
+    pBuf->nBuf = nNew;
+  }
+  return SQLITE_OK;
+}
+
+/*
+** Release the allocation managed by buffer pBuf.
+*/
+static void dbdataBufferFree(DbdataBuffer *pBuf){
+  sqlite3_free(pBuf->aBuf);
+  memset(pBuf, 0, sizeof(*pBuf));
+}
+
+/*
+** Connect to an sqlite_dbdata (pAux==0) or sqlite_dbptr (pAux!=0) virtual 
+** table.
+*/
+static int dbdataConnect(
+  sqlite3 *db,
+  void *pAux,
+  int argc, const char *const*argv,
+  sqlite3_vtab **ppVtab,
+  char **pzErr
+){
+  DbdataTable *pTab = 0;
+  int rc = sqlite3_declare_vtab(db, pAux ? DBPTR_SCHEMA : DBDATA_SCHEMA);
+
+  (void)argc;
+  (void)argv;
+  (void)pzErr;
+  sqlite3_vtab_config(db, SQLITE_VTAB_USES_ALL_SCHEMAS);
+  if( rc==SQLITE_OK ){
+    pTab = (DbdataTable*)sqlite3_malloc64(sizeof(DbdataTable));
+    if( pTab==0 ){
+      rc = SQLITE_NOMEM;
+    }else{
+      memset(pTab, 0, sizeof(DbdataTable));
+      pTab->db = db;
+      pTab->bPtr = (pAux!=0);
+    }
+  }
+
+  *ppVtab = (sqlite3_vtab*)pTab;
+  return rc;
+}
+
+/*
+** Disconnect from or destroy a sqlite_dbdata or sqlite_dbptr virtual table.
+*/
+static int dbdataDisconnect(sqlite3_vtab *pVtab){
+  DbdataTable *pTab = (DbdataTable*)pVtab;
+  if( pTab ){
+    sqlite3_finalize(pTab->pStmt);
+    sqlite3_free(pVtab);
+  }
+  return SQLITE_OK;
+}
+
+/*
+** This function interprets two types of constraints:
+**
+**       schema=?
+**       pgno=?
+**
+** If neither are present, idxNum is set to 0. If schema=? is present,
+** the 0x01 bit in idxNum is set. If pgno=? is present, the 0x02 bit
+** in idxNum is set.
+**
+** If both parameters are present, schema is in position 0 and pgno in
+** position 1.
+*/
+static int dbdataBestIndex(sqlite3_vtab *tab, sqlite3_index_info *pIdx){
+  DbdataTable *pTab = (DbdataTable*)tab;
+  int i;
+  int iSchema = -1;
+  int iPgno = -1;
+  int colSchema = (pTab->bPtr ? DBPTR_COLUMN_SCHEMA : DBDATA_COLUMN_SCHEMA);
+
+  for(i=0; i<pIdx->nConstraint; i++){
+    struct sqlite3_index_constraint *p = &pIdx->aConstraint[i];
+    if( p->op==SQLITE_INDEX_CONSTRAINT_EQ ){
+      if( p->iColumn==colSchema ){
+        if( p->usable==0 ) return SQLITE_CONSTRAINT;
+        iSchema = i;
+      }
+      if( p->iColumn==DBDATA_COLUMN_PGNO && p->usable ){
+        iPgno = i;
+      }
+    }
+  }
+
+  if( iSchema>=0 ){
+    pIdx->aConstraintUsage[iSchema].argvIndex = 1;
+    pIdx->aConstraintUsage[iSchema].omit = 1;
+  }
+  if( iPgno>=0 ){
+    pIdx->aConstraintUsage[iPgno].argvIndex = 1 + (iSchema>=0);
+    pIdx->aConstraintUsage[iPgno].omit = 1;
+    pIdx->estimatedCost = 100;
+    pIdx->estimatedRows =  50;
+
+    if( pTab->bPtr==0 && pIdx->nOrderBy && pIdx->aOrderBy[0].desc==0 ){
+      int iCol = pIdx->aOrderBy[0].iColumn;
+      if( pIdx->nOrderBy==1 ){
+        pIdx->orderByConsumed = (iCol==0 || iCol==1);
+      }else if( pIdx->nOrderBy==2 && pIdx->aOrderBy[1].desc==0 && iCol==0 ){
+        pIdx->orderByConsumed = (pIdx->aOrderBy[1].iColumn==1);
+      }
+    }
+
+  }else{
+    pIdx->estimatedCost = 100000000;
+    pIdx->estimatedRows = 1000000000;
+  }
+  pIdx->idxNum = (iSchema>=0 ? 0x01 : 0x00) | (iPgno>=0 ? 0x02 : 0x00);
+  return SQLITE_OK;
+}
+
+/*
+** Open a new sqlite_dbdata or sqlite_dbptr cursor.
+*/
+static int dbdataOpen(sqlite3_vtab *pVTab, sqlite3_vtab_cursor **ppCursor){
+  DbdataCursor *pCsr;
+
+  pCsr = (DbdataCursor*)sqlite3_malloc64(sizeof(DbdataCursor));
+  if( pCsr==0 ){
+    return SQLITE_NOMEM;
+  }else{
+    memset(pCsr, 0, sizeof(DbdataCursor));
+    pCsr->base.pVtab = pVTab;
+  }
+
+  *ppCursor = (sqlite3_vtab_cursor *)pCsr;
+  return SQLITE_OK;
+}
+
+/*
+** Restore a cursor object to the state it was in when first allocated 
+** by dbdataOpen().
+*/
+static void dbdataResetCursor(DbdataCursor *pCsr){
+  DbdataTable *pTab = (DbdataTable*)(pCsr->base.pVtab);
+  if( pTab->pStmt==0 ){
+    pTab->pStmt = pCsr->pStmt;
+  }else{
+    sqlite3_finalize(pCsr->pStmt);
+  }
+  pCsr->pStmt = 0;
+  pCsr->iPgno = 1;
+  pCsr->iCell = 0;
+  pCsr->iField = 0;
+  pCsr->bOnePage = 0;
+  sqlite3_free(pCsr->aPage);
+  dbdataBufferFree(&pCsr->rec);
+  pCsr->aPage = 0;
+  pCsr->nRec = 0;
+}
+
+/*
+** Close an sqlite_dbdata or sqlite_dbptr cursor.
+*/
+static int dbdataClose(sqlite3_vtab_cursor *pCursor){
+  DbdataCursor *pCsr = (DbdataCursor*)pCursor;
+  dbdataResetCursor(pCsr);
+  sqlite3_free(pCsr);
+  return SQLITE_OK;
+}
+
+/* 
+** Utility methods to decode 16 and 32-bit big-endian unsigned integers. 
+*/
+static u32 get_uint16(unsigned char *a){
+  return (a[0]<<8)|a[1];
+}
+static u32 get_uint32(unsigned char *a){
+  return ((u32)a[0]<<24)
+       | ((u32)a[1]<<16)
+       | ((u32)a[2]<<8)
+       | ((u32)a[3]);
+}
+
+/*
+** Load page pgno from the database via the sqlite_dbpage virtual table.
+** If successful, set (*ppPage) to point to a buffer containing the page
+** data, (*pnPage) to the size of that buffer in bytes and return
+** SQLITE_OK. In this case it is the responsibility of the caller to
+** eventually free the buffer using sqlite3_free().
+**
+** Or, if an error occurs, set both (*ppPage) and (*pnPage) to 0 and
+** return an SQLite error code.
+*/
+static int dbdataLoadPage(
+  DbdataCursor *pCsr,             /* Cursor object */
+  u32 pgno,                       /* Page number of page to load */
+  u8 **ppPage,                    /* OUT: pointer to page buffer */
+  int *pnPage                     /* OUT: Size of (*ppPage) in bytes */
+){
+  int rc2;
+  int rc = SQLITE_OK;
+  sqlite3_stmt *pStmt = pCsr->pStmt;
+
+  *ppPage = 0;
+  *pnPage = 0;
+  if( pgno>0 ){
+    sqlite3_bind_int64(pStmt, 2, pgno);
+    if( SQLITE_ROW==sqlite3_step(pStmt) ){
+      int nCopy = sqlite3_column_bytes(pStmt, 0);
+      if( nCopy>0 ){
+        u8 *pPage;
+        pPage = (u8*)sqlite3_malloc64(nCopy + DBDATA_PADDING_BYTES);
+        if( pPage==0 ){
+          rc = SQLITE_NOMEM;
+        }else{
+          const u8 *pCopy = sqlite3_column_blob(pStmt, 0);
+          memcpy(pPage, pCopy, nCopy);
+          memset(&pPage[nCopy], 0, DBDATA_PADDING_BYTES);
+        }
+        *ppPage = pPage;
+        *pnPage = nCopy;
+      }
+    }
+    rc2 = sqlite3_reset(pStmt);
+    if( rc==SQLITE_OK ) rc = rc2;
+  }
+
+  return rc;
+}
+
+/*
+** Read a varint.  Put the value in *pVal and return the number of bytes.
+*/
+static int dbdataGetVarint(const u8 *z, sqlite3_int64 *pVal){
+  sqlite3_uint64 u = 0;
+  int i;
+  for(i=0; i<8; i++){
+    u = (u<<7) + (z[i]&0x7f);
+    if( (z[i]&0x80)==0 ){ *pVal = (sqlite3_int64)u; return i+1; }
+  }
+  u = (u<<8) + (z[i]&0xff);
+  *pVal = (sqlite3_int64)u;
+  return 9;
+}
+
+/*
+** Like dbdataGetVarint(), but set the output to 0 if it is less than 0
+** or greater than 0xFFFFFFFF. This can be used for all varints in an
+** SQLite database except for key values in intkey tables.
+*/
+static int dbdataGetVarintU32(const u8 *z, sqlite3_int64 *pVal){
+  sqlite3_int64 val;
+  int nRet = dbdataGetVarint(z, &val);
+  if( val<0 || val>0xFFFFFFFF ) val = 0;
+  *pVal = val;
+  return nRet;
+}
+
+/*
+** Return the number of bytes of space used by an SQLite value of type
+** eType.
+*/
+static int dbdataValueBytes(int eType){
+  switch( eType ){
+    case 0: case 8: case 9:
+    case 10: case 11:
+      return 0;
+    case 1:
+      return 1;
+    case 2:
+      return 2;
+    case 3:
+      return 3;
+    case 4:
+      return 4;
+    case 5:
+      return 6;
+    case 6:
+    case 7:
+      return 8;
+    default:
+      if( eType>0 ){
+        return ((eType-12) / 2);
+      }
+      return 0;
+  }
+}
+
+/*
+** Load a value of type eType from buffer pData and use it to set the
+** result of context object pCtx.
+*/
+static void dbdataValue(
+  sqlite3_context *pCtx, 
+  u32 enc,
+  int eType, 
+  u8 *pData,
+  sqlite3_int64 nData
+){
+  if( eType>=0 ){
+    if( dbdataValueBytes(eType)<=nData ){
+      switch( eType ){
+        case 0: 
+        case 10: 
+        case 11: 
+          sqlite3_result_null(pCtx);
+          break;
+        
+        case 8: 
+          sqlite3_result_int(pCtx, 0);
+          break;
+        case 9:
+          sqlite3_result_int(pCtx, 1);
+          break;
+    
+        case 1: case 2: case 3: case 4: case 5: case 6: case 7: {
+          sqlite3_uint64 v = (signed char)pData[0];
+          pData++;
+          switch( eType ){
+            case 7:
+            case 6:  v = (v<<16) + (pData[0]<<8) + pData[1];  pData += 2;
+            case 5:  v = (v<<16) + (pData[0]<<8) + pData[1];  pData += 2;
+            case 4:  v = (v<<8) + pData[0];  pData++;
+            case 3:  v = (v<<8) + pData[0];  pData++;
+            case 2:  v = (v<<8) + pData[0];  pData++;
+          }
+    
+          if( eType==7 ){
+            double r;
+            memcpy(&r, &v, sizeof(r));
+            sqlite3_result_double(pCtx, r);
+          }else{
+            sqlite3_result_int64(pCtx, (sqlite3_int64)v);
+          }
+          break;
+        }
+    
+        default: {
+          int n = ((eType-12) / 2);
+          if( eType % 2 ){
+            switch( enc ){
+  #ifndef SQLITE_OMIT_UTF16
+              case SQLITE_UTF16BE:
+                sqlite3_result_text16be(pCtx, (void*)pData, n, SQLITE_TRANSIENT);
+                break;
+              case SQLITE_UTF16LE:
+                sqlite3_result_text16le(pCtx, (void*)pData, n, SQLITE_TRANSIENT);
+                break;
+  #endif
+              default:
+                sqlite3_result_text(pCtx, (char*)pData, n, SQLITE_TRANSIENT);
+                break;
+            }
+          }else{
+            sqlite3_result_blob(pCtx, pData, n, SQLITE_TRANSIENT);
+          }
+        }
+      }
+    }else{
+      if( eType==7 ){
+        sqlite3_result_double(pCtx, 0.0);
+      }else if( eType<7 ){
+        sqlite3_result_int(pCtx, 0);
+      }else if( eType%2 ){
+        sqlite3_result_text(pCtx, "", 0, SQLITE_STATIC);
+      }else{
+        sqlite3_result_blob(pCtx, "", 0, SQLITE_STATIC);
+      }
+    }
+  }
+}
+
+/* This macro is a copy of the MX_CELL() macro in the SQLite core. Given
+** a page-size, it returns the maximum number of cells that may be present
+** on the page.  */
+#define DBDATA_MX_CELL(pgsz) ((pgsz-8)/6)
+
+/* Maximum number of fields that may appear in a single record. This is
+** the "hard-limit", according to comments in sqliteLimit.h. */
+#define DBDATA_MX_FIELD 32676
+
+/*
+** Move an sqlite_dbdata or sqlite_dbptr cursor to the next entry.
+*/
+static int dbdataNext(sqlite3_vtab_cursor *pCursor){
+  DbdataCursor *pCsr = (DbdataCursor*)pCursor;
+  DbdataTable *pTab = (DbdataTable*)pCursor->pVtab;
+
+  pCsr->iRowid++;
+  while( 1 ){
+    int rc;
+    int iOff = (pCsr->iPgno==1 ? 100 : 0);
+    int bNextPage = 0;
+
+    if( pCsr->aPage==0 ){
+      while( 1 ){
+        if( pCsr->bOnePage==0 && pCsr->iPgno>pCsr->szDb ) return SQLITE_OK;
+        rc = dbdataLoadPage(pCsr, pCsr->iPgno, &pCsr->aPage, &pCsr->nPage);
+        if( rc!=SQLITE_OK ) return rc;
+        if( pCsr->aPage && pCsr->nPage>=256 ) break;
+        sqlite3_free(pCsr->aPage);
+        pCsr->aPage = 0;
+        if( pCsr->bOnePage ) return SQLITE_OK;
+        pCsr->iPgno++;
+      }
+
+      assert( iOff+3+2<=pCsr->nPage );
+      pCsr->iCell = pTab->bPtr ? -2 : 0;
+      pCsr->nCell = get_uint16(&pCsr->aPage[iOff+3]);
+      if( pCsr->nCell>DBDATA_MX_CELL(pCsr->nPage) ){
+        pCsr->nCell = DBDATA_MX_CELL(pCsr->nPage);
+      }
+    }
+
+    if( pTab->bPtr ){
+      if( pCsr->aPage[iOff]!=0x02 && pCsr->aPage[iOff]!=0x05 ){
+        pCsr->iCell = pCsr->nCell;
+      }
+      pCsr->iCell++;
+      if( pCsr->iCell>=pCsr->nCell ){
+        sqlite3_free(pCsr->aPage);
+        pCsr->aPage = 0;
+        if( pCsr->bOnePage ) return SQLITE_OK;
+        pCsr->iPgno++;
+      }else{
+        return SQLITE_OK;
+      }
+    }else{
+      /* If there is no record loaded, load it now. */
+      assert( pCsr->rec.aBuf!=0 || pCsr->nRec==0 );
+      if( pCsr->nRec==0 ){
+        int bHasRowid = 0;
+        int nPointer = 0;
+        sqlite3_int64 nPayload = 0;
+        sqlite3_int64 nHdr = 0;
+        int iHdr;
+        int U, X;
+        int nLocal;
+  
+        switch( pCsr->aPage[iOff] ){
+          case 0x02:
+            nPointer = 4;
+            break;
+          case 0x0a:
+            break;
+          case 0x0d:
+            bHasRowid = 1;
+            break;
+          default:
+            /* This is not a b-tree page with records on it. Continue. */
+            pCsr->iCell = pCsr->nCell;
+            break;
+        }
+
+        if( pCsr->iCell>=pCsr->nCell ){
+          bNextPage = 1;
+        }else{
+          int iCellPtr = iOff + 8 + nPointer + pCsr->iCell*2;
+  
+          if( iCellPtr>pCsr->nPage ){
+            bNextPage = 1;
+          }else{
+            iOff = get_uint16(&pCsr->aPage[iCellPtr]);
+          }
+    
+          /* For an interior node cell, skip past the child-page number */
+          iOff += nPointer;
+    
+          /* Load the "byte of payload including overflow" field */
+          if( bNextPage || iOff>pCsr->nPage || iOff<=iCellPtr ){
+            bNextPage = 1;
+          }else{
+            iOff += dbdataGetVarintU32(&pCsr->aPage[iOff], &nPayload);
+            if( nPayload>0x7fffff00 ) nPayload &= 0x3fff;
+            if( nPayload==0 ) nPayload = 1;
+          }
+    
+          /* If this is a leaf intkey cell, load the rowid */
+          if( bHasRowid && !bNextPage && iOff<pCsr->nPage ){
+            iOff += dbdataGetVarint(&pCsr->aPage[iOff], &pCsr->iIntkey);
+          }
+    
+          /* Figure out how much data to read from the local page */
+          U = pCsr->nPage;
+          if( bHasRowid ){
+            X = U-35;
+          }else{
+            X = ((U-12)*64/255)-23;
+          }
+          if( nPayload<=X ){
+            nLocal = nPayload;
+          }else{
+            int M, K;
+            M = ((U-12)*32/255)-23;
+            K = M+((nPayload-M)%(U-4));
+            if( K<=X ){
+              nLocal = K;
+            }else{
+              nLocal = M;
+            }
+          }
+
+          if( bNextPage || nLocal+iOff>pCsr->nPage ){
+            bNextPage = 1;
+          }else{
+
+            /* Allocate space for payload. And a bit more to catch small buffer
+            ** overruns caused by attempting to read a varint or similar from 
+            ** near the end of a corrupt record.  */
+            rc = dbdataBufferSize(&pCsr->rec, nPayload+DBDATA_PADDING_BYTES);
+            if( rc!=SQLITE_OK ) return rc;
+            assert( pCsr->rec.aBuf!=0 );
+            assert( nPayload!=0 );
+
+            /* Load the nLocal bytes of payload */
+            memcpy(pCsr->rec.aBuf, &pCsr->aPage[iOff], nLocal);
+            iOff += nLocal;
+
+            /* Load content from overflow pages */
+            if( nPayload>nLocal ){
+              sqlite3_int64 nRem = nPayload - nLocal;
+              u32 pgnoOvfl = get_uint32(&pCsr->aPage[iOff]);
+              while( nRem>0 ){
+                u8 *aOvfl = 0;
+                int nOvfl = 0;
+                int nCopy;
+                rc = dbdataLoadPage(pCsr, pgnoOvfl, &aOvfl, &nOvfl);
+                assert( rc!=SQLITE_OK || aOvfl==0 || nOvfl==pCsr->nPage );
+                if( rc!=SQLITE_OK ) return rc;
+                if( aOvfl==0 ) break;
+
+                nCopy = U-4;
+                if( nCopy>nRem ) nCopy = nRem;
+                memcpy(&pCsr->rec.aBuf[nPayload-nRem], &aOvfl[4], nCopy);
+                nRem -= nCopy;
+
+                pgnoOvfl = get_uint32(aOvfl);
+                sqlite3_free(aOvfl);
+              }
+              nPayload -= nRem;
+            }
+            memset(&pCsr->rec.aBuf[nPayload], 0, DBDATA_PADDING_BYTES);
+            pCsr->nRec = nPayload;
+    
+            iHdr = dbdataGetVarintU32(pCsr->rec.aBuf, &nHdr);
+            if( nHdr>nPayload ) nHdr = 0;
+            pCsr->nHdr = nHdr;
+            pCsr->pHdrPtr = &pCsr->rec.aBuf[iHdr];
+            pCsr->pPtr = &pCsr->rec.aBuf[pCsr->nHdr];
+            pCsr->iField = (bHasRowid ? -1 : 0);
+          }
+        }
+      }else{
+        pCsr->iField++;
+        if( pCsr->iField>0 ){
+          sqlite3_int64 iType;
+          if( pCsr->pHdrPtr>=&pCsr->rec.aBuf[pCsr->nRec] 
+           || pCsr->iField>=DBDATA_MX_FIELD
+          ){
+            bNextPage = 1;
+          }else{
+            int szField = 0;
+            pCsr->pHdrPtr += dbdataGetVarintU32(pCsr->pHdrPtr, &iType);
+            szField = dbdataValueBytes(iType);
+            if( (pCsr->nRec - (pCsr->pPtr - pCsr->rec.aBuf))<szField ){
+              pCsr->pPtr = &pCsr->rec.aBuf[pCsr->nRec];
+            }else{
+              pCsr->pPtr += szField;
+            }
+          }
+        }
+      }
+
+      if( bNextPage ){
+        sqlite3_free(pCsr->aPage);
+        pCsr->aPage = 0;
+        pCsr->nRec = 0;
+        if( pCsr->bOnePage ) return SQLITE_OK;
+        pCsr->iPgno++;
+      }else{
+        if( pCsr->iField<0 || pCsr->pHdrPtr<&pCsr->rec.aBuf[pCsr->nHdr] ){
+          return SQLITE_OK;
+        }
+
+        /* Advance to the next cell. The next iteration of the loop will load
+        ** the record and so on. */
+        pCsr->nRec = 0;
+        pCsr->iCell++;
+      }
+    }
+  }
+
+  assert( !"can't get here" );
+  return SQLITE_OK;
+}
+
+/* 
+** Return true if the cursor is at EOF.
+*/
+static int dbdataEof(sqlite3_vtab_cursor *pCursor){
+  DbdataCursor *pCsr = (DbdataCursor*)pCursor;
+  return pCsr->aPage==0;
+}
+
+/*
+** Return true if nul-terminated string zSchema ends in "()". Or false
+** otherwise.
+*/
+static int dbdataIsFunction(const char *zSchema){
+  size_t n = strlen(zSchema);
+  if( n>2 && zSchema[n-2]=='(' && zSchema[n-1]==')' ){
+    return (int)n-2;
+  }
+  return 0;
+}
+
+/* 
+** Determine the size in pages of database zSchema (where zSchema is
+** "main", "temp" or the name of an attached database) and set 
+** pCsr->szDb accordingly. If successful, return SQLITE_OK. Otherwise,
+** an SQLite error code.
+*/
+static int dbdataDbsize(DbdataCursor *pCsr, const char *zSchema){
+  DbdataTable *pTab = (DbdataTable*)pCsr->base.pVtab;
+  char *zSql = 0;
+  int rc, rc2;
+  int nFunc = 0;
+  sqlite3_stmt *pStmt = 0;
+
+  if( (nFunc = dbdataIsFunction(zSchema))>0 ){
+    zSql = sqlite3_mprintf("SELECT %.*s(0)", nFunc, zSchema);
+  }else{
+    zSql = sqlite3_mprintf("PRAGMA %Q.page_count", zSchema);
+  }
+  if( zSql==0 ) return SQLITE_NOMEM;
+
+  rc = sqlite3_prepare_v2(pTab->db, zSql, -1, &pStmt, 0);
+  sqlite3_free(zSql);
+  if( rc==SQLITE_OK && sqlite3_step(pStmt)==SQLITE_ROW ){
+    pCsr->szDb = sqlite3_column_int(pStmt, 0);
+  }
+  rc2 = sqlite3_finalize(pStmt);
+  if( rc==SQLITE_OK ) rc = rc2;
+  return rc;
+}
+
+/*
+** Attempt to figure out the encoding of the database by retrieving page 1
+** and inspecting the header field. If successful, set the pCsr->enc variable
+** and return SQLITE_OK. Otherwise, return an SQLite error code.
+*/
+static int dbdataGetEncoding(DbdataCursor *pCsr){
+  int rc = SQLITE_OK;
+  int nPg1 = 0;
+  u8 *aPg1 = 0;
+  rc = dbdataLoadPage(pCsr, 1, &aPg1, &nPg1);
+  if( rc==SQLITE_OK && nPg1>=(56+4) ){
+    pCsr->enc = get_uint32(&aPg1[56]);
+  }
+  sqlite3_free(aPg1);
+  return rc;
+}
+
+
+/* 
+** xFilter method for sqlite_dbdata and sqlite_dbptr.
+*/
+static int dbdataFilter(
+  sqlite3_vtab_cursor *pCursor, 
+  int idxNum, const char *idxStr,
+  int argc, sqlite3_value **argv
+){
+  DbdataCursor *pCsr = (DbdataCursor*)pCursor;
+  DbdataTable *pTab = (DbdataTable*)pCursor->pVtab;
+  int rc = SQLITE_OK;
+  const char *zSchema = "main";
+  (void)idxStr;
+  (void)argc;
+
+  dbdataResetCursor(pCsr);
+  assert( pCsr->iPgno==1 );
+  if( idxNum & 0x01 ){
+    zSchema = (const char*)sqlite3_value_text(argv[0]);
+    if( zSchema==0 ) zSchema = "";
+  }
+  if( idxNum & 0x02 ){
+    pCsr->iPgno = sqlite3_value_int(argv[(idxNum & 0x01)]);
+    pCsr->bOnePage = 1;
+  }else{
+    rc = dbdataDbsize(pCsr, zSchema);
+  }
+
+  if( rc==SQLITE_OK ){
+    int nFunc = 0;
+    if( pTab->pStmt ){
+      pCsr->pStmt = pTab->pStmt;
+      pTab->pStmt = 0;
+    }else if( (nFunc = dbdataIsFunction(zSchema))>0 ){
+      char *zSql = sqlite3_mprintf("SELECT %.*s(?2)", nFunc, zSchema);
+      if( zSql==0 ){
+        rc = SQLITE_NOMEM;
+      }else{
+        rc = sqlite3_prepare_v2(pTab->db, zSql, -1, &pCsr->pStmt, 0);
+        sqlite3_free(zSql);
+      }
+    }else{
+      rc = sqlite3_prepare_v2(pTab->db, 
+          "SELECT data FROM sqlite_dbpage(?) WHERE pgno=?", -1,
+          &pCsr->pStmt, 0
+      );
+    }
+  }
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_bind_text(pCsr->pStmt, 1, zSchema, -1, SQLITE_TRANSIENT);
+  }
+
+  /* Try to determine the encoding of the db by inspecting the header
+  ** field on page 1. */
+  if( rc==SQLITE_OK ){
+    rc = dbdataGetEncoding(pCsr);
+  }
+
+  if( rc!=SQLITE_OK ){
+    pTab->base.zErrMsg = sqlite3_mprintf("%s", sqlite3_errmsg(pTab->db));
+  }
+
+  if( rc==SQLITE_OK ){
+    rc = dbdataNext(pCursor);
+  }
+  return rc;
+}
+
+/*
+** Return a column for the sqlite_dbdata or sqlite_dbptr table.
+*/
+static int dbdataColumn(
+  sqlite3_vtab_cursor *pCursor, 
+  sqlite3_context *ctx, 
+  int i
+){
+  DbdataCursor *pCsr = (DbdataCursor*)pCursor;
+  DbdataTable *pTab = (DbdataTable*)pCursor->pVtab;
+  if( pTab->bPtr ){
+    switch( i ){
+      case DBPTR_COLUMN_PGNO:
+        sqlite3_result_int64(ctx, pCsr->iPgno);
+        break;
+      case DBPTR_COLUMN_CHILD: {
+        int iOff = pCsr->iPgno==1 ? 100 : 0;
+        if( pCsr->iCell<0 ){
+          iOff += 8;
+        }else{
+          iOff += 12 + pCsr->iCell*2;
+          if( iOff>pCsr->nPage ) return SQLITE_OK;
+          iOff = get_uint16(&pCsr->aPage[iOff]);
+        }
+        if( iOff<=pCsr->nPage ){
+          sqlite3_result_int64(ctx, get_uint32(&pCsr->aPage[iOff]));
+        }
+        break;
+      }
+    }
+  }else{
+    switch( i ){
+      case DBDATA_COLUMN_PGNO:
+        sqlite3_result_int64(ctx, pCsr->iPgno);
+        break;
+      case DBDATA_COLUMN_CELL:
+        sqlite3_result_int(ctx, pCsr->iCell);
+        break;
+      case DBDATA_COLUMN_FIELD:
+        sqlite3_result_int(ctx, pCsr->iField);
+        break;
+      case DBDATA_COLUMN_VALUE: {
+        if( pCsr->iField<0 ){
+          sqlite3_result_int64(ctx, pCsr->iIntkey);
+        }else if( &pCsr->rec.aBuf[pCsr->nRec] >= pCsr->pPtr ){
+          sqlite3_int64 iType;
+          dbdataGetVarintU32(pCsr->pHdrPtr, &iType);
+          dbdataValue(
+              ctx, pCsr->enc, iType, pCsr->pPtr, 
+              &pCsr->rec.aBuf[pCsr->nRec] - pCsr->pPtr
+          );
+        }
+        break;
+      }
+    }
+  }
+  return SQLITE_OK;
+}
+
+/* 
+** Return the rowid for an sqlite_dbdata or sqlite_dptr table.
+*/
+static int dbdataRowid(sqlite3_vtab_cursor *pCursor, sqlite_int64 *pRowid){
+  DbdataCursor *pCsr = (DbdataCursor*)pCursor;
+  *pRowid = pCsr->iRowid;
+  return SQLITE_OK;
+}
+
+
+/*
+** Invoke this routine to register the "sqlite_dbdata" virtual table module
+*/
+static int sqlite3DbdataRegister(sqlite3 *db){
+  static sqlite3_module dbdata_module = {
+    0,                            /* iVersion */
+    0,                            /* xCreate */
+    dbdataConnect,                /* xConnect */
+    dbdataBestIndex,              /* xBestIndex */
+    dbdataDisconnect,             /* xDisconnect */
+    0,                            /* xDestroy */
+    dbdataOpen,                   /* xOpen - open a cursor */
+    dbdataClose,                  /* xClose - close a cursor */
+    dbdataFilter,                 /* xFilter - configure scan constraints */
+    dbdataNext,                   /* xNext - advance a cursor */
+    dbdataEof,                    /* xEof - check for end of scan */
+    dbdataColumn,                 /* xColumn - read data */
+    dbdataRowid,                  /* xRowid - read data */
+    0,                            /* xUpdate */
+    0,                            /* xBegin */
+    0,                            /* xSync */
+    0,                            /* xCommit */
+    0,                            /* xRollback */
+    0,                            /* xFindMethod */
+    0,                            /* xRename */
+    0,                            /* xSavepoint */
+    0,                            /* xRelease */
+    0,                            /* xRollbackTo */
+    0,                            /* xShadowName */
+    0                             /* xIntegrity */
+  };
+
+  int rc = sqlite3_create_module(db, "sqlite_dbdata", &dbdata_module, 0);
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_module(db, "sqlite_dbptr", &dbdata_module, (void*)1);
+  }
+  return rc;
+}
+
+int sqlite3_dbdata_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  (void)pzErrMsg;
+  return sqlite3DbdataRegister(db);
+}
+
+#endif /* ifndef SQLITE_OMIT_VIRTUALTABLE */
diff --git a/ext/recover/recover1.test b/ext/recover/recover1.test
new file mode 100644
index 0000000000000000000000000000000000000000..11a43780d971ca0d3eeecf0861879ed4efdc2b34
--- /dev/null
+++ b/ext/recover/recover1.test
@@ -0,0 +1,377 @@
+# 2022 August 28
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname [info script]] recover_common.tcl]
+set testprefix recover1
+
+proc compare_result {db1 db2 sql} {
+  set r1 [$db1 eval $sql]
+  set r2 [$db2 eval $sql]
+  if {$r1 != $r2} {
+    puts "r1: $r1"
+    puts "r2: $r2"
+    error "mismatch for $sql"
+  }
+  return ""
+}
+
+proc compare_dbs {db1 db2} {
+  compare_result $db1 $db2 "SELECT sql FROM sqlite_master ORDER BY 1"
+  foreach tbl [$db1 eval {SELECT name FROM sqlite_master WHERE type='table'}] {
+    compare_result $db1 $db2 "SELECT * FROM $tbl"
+  }
+
+  compare_result $db1 $db2 "PRAGMA page_size"
+  compare_result $db1 $db2 "PRAGMA auto_vacuum"
+  compare_result $db1 $db2 "PRAGMA encoding"
+  compare_result $db1 $db2 "PRAGMA user_version"
+  compare_result $db1 $db2 "PRAGMA application_id"
+}
+
+proc do_recover_test {tn} {
+  forcedelete test.db2
+  forcedelete rstate.db
+
+  uplevel [list do_test $tn.1 {
+    set R [sqlite3_recover_init db main test.db2]
+    $R config testdb rstate.db
+    $R run
+    $R finish
+  } {}]
+
+  sqlite3 db2 test.db2
+  uplevel [list do_test $tn.2 [list compare_dbs db db2] {}]
+  db2 close
+
+  forcedelete test.db2
+  forcedelete rstate.db
+
+  uplevel [list do_test $tn.3 {
+    set ::sqlhook [list]
+    set R [sqlite3_recover_init_sql db main my_sql_hook]
+    $R config testdb rstate.db
+    $R config rowids 1
+    $R run
+    $R finish
+  } {}]
+
+  sqlite3 db2 test.db2
+  execsql [join $::sqlhook ";"] db2
+  db2 close
+  sqlite3 db2 test.db2
+  uplevel [list do_test $tn.4 [list compare_dbs db db2] {}]
+  db2 close
+}
+
+proc my_sql_hook {sql} {
+  lappend ::sqlhook $sql
+  return 0
+}
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+  CREATE TABLE t2(a INTEGER PRIMARY KEY, b) WITHOUT ROWID;
+  WITH s(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<10
+  )
+  INSERT INTO t1 SELECT i*2, hex(randomblob(250)) FROM s;
+  INSERT INTO t2 SELECT * FROM t1;
+}
+
+do_recover_test 1
+
+do_execsql_test 2.0 {
+  ALTER TABLE t1 ADD COLUMN c DEFAULT 'xyz'
+}
+do_recover_test 2
+
+do_execsql_test 3.0 {
+  CREATE INDEX i1 ON t1(c);
+}
+do_recover_test 3
+
+do_execsql_test 4.0 {
+  CREATE VIEW v1 AS SELECT * FROM t2;
+}
+do_recover_test 4
+
+do_execsql_test 5.0 {
+  CREATE UNIQUE INDEX i2 ON t1(c, b);
+}
+do_recover_test 5
+
+#--------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 6.0 {
+  CREATE TABLE t1(
+      a INTEGER PRIMARY KEY,
+      b INT,
+      c TEXT,
+      d INT GENERATED ALWAYS AS (a*abs(b)) VIRTUAL,
+      e TEXT GENERATED ALWAYS AS (substr(c,b,b+1)) STORED,
+      f TEXT GENERATED ALWAYS AS (substr(c,b,b+1)) STORED
+  );
+
+  INSERT INTO t1 VALUES(1, 2, 'hello world');
+}
+do_recover_test 6
+
+do_execsql_test 7.0 {
+  CREATE TABLE t2(i, j GENERATED ALWAYS AS (i+1) STORED, k);
+  INSERT INTO t2 VALUES(10, 'ten');
+}
+do_execsql_test 7.1 {
+  SELECT * FROM t2
+} {10 11 ten}
+
+do_recover_test 7.2
+
+#--------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 8.0 {
+  CREATE TABLE x1(a INTEGER PRIMARY KEY AUTOINCREMENT, b, c);
+  WITH s(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<2
+  )
+  INSERT INTO x1(b, c) SELECT hex(randomblob(100)), hex(randomblob(100)) FROM s;
+  
+  CREATE INDEX x1b ON x1(b);
+  CREATE INDEX x1cb ON x1(c, b);
+  DELETE FROM x1 WHERE a>50;
+
+  ANALYZE;
+}
+
+do_recover_test 8
+
+#-------------------------------------------------------------------------
+reset_db
+ifcapable fts5 {
+  do_execsql_test 9.1 {
+    CREATE VIRTUAL TABLE ft5 USING fts5(a, b);
+    INSERT INTO ft5 VALUES('hello', 'world');
+  }
+  do_recover_test 9 
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 10.1 {
+  CREATE TABLE x1(a PRIMARY KEY, str TEXT) WITHOUT ROWID;
+  INSERT INTO x1 VALUES(1, '
+    \nhello\012world(\n0)(\n1)
+  ');
+  INSERT INTO x1 VALUES(2, '
+    \nhello
+  ');
+}
+do_execsql_test 10.2 "
+  INSERT INTO x1 VALUES(3, '\012hello there\015world');
+  INSERT INTO x1 VALUES(4, '\015hello there\015world');
+"
+do_recover_test 10 
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 11.1 {
+  PRAGMA page_size = 4096;
+  PRAGMA encoding='utf16';
+  PRAGMA auto_vacuum = 2;
+  PRAGMA user_version = 45;
+  PRAGMA application_id = 22;
+
+  CREATE TABLE u1(u, v);
+  INSERT INTO u1 VALUES('edvin marton', 'bond');
+  INSERT INTO u1 VALUES(1, 4.0);
+}
+do_execsql_test 11.1a {
+  PRAGMA auto_vacuum;
+} {2}
+
+do_recover_test 11 
+
+do_test 12.1 {
+  set R [sqlite3_recover_init db "" test.db2]
+  $R config lostandfound ""
+  $R config invalid xyz
+} {12}
+do_test 12.2 {
+  $R run
+  $R run
+} {0}
+
+do_test 12.3 {
+  $R finish
+} {}
+
+
+
+#-------------------------------------------------------------------------
+reset_db
+file_control_reservebytes db 16
+do_execsql_test 12.1 {
+  PRAGMA auto_vacuum = 2;
+  PRAGMA user_version = 45;
+  PRAGMA application_id = 22;
+
+  CREATE TABLE u1(u, v);
+  CREATE UNIQUE INDEX i1 ON u1(u, v);
+  INSERT INTO u1 VALUES(1, 2), (3, 4);
+
+  CREATE TABLE u2(u, v);
+  CREATE UNIQUE INDEX i2 ON u1(u, v);
+  INSERT INTO u2 VALUES(hex(randomblob(500)), hex(randomblob(1000)));
+  INSERT INTO u2 VALUES(hex(randomblob(500)), hex(randomblob(1000)));
+  INSERT INTO u2 VALUES(hex(randomblob(500)), hex(randomblob(1000)));
+  INSERT INTO u2 VALUES(hex(randomblob(50000)), hex(randomblob(20000)));
+}
+
+do_recover_test 12 
+
+#-------------------------------------------------------------------------
+reset_db
+sqlite3 db "" 
+do_recover_test 13
+
+do_execsql_test 14.1 {
+  PRAGMA auto_vacuum = 2;
+  PRAGMA user_version = 45;
+  PRAGMA application_id = 22;
+
+  CREATE TABLE u1(u, v);
+  CREATE UNIQUE INDEX i1 ON u1(u, v);
+  INSERT INTO u1 VALUES(1, 2), (3, 4);
+
+  CREATE TABLE u2(u, v);
+  CREATE UNIQUE INDEX i2 ON u1(u, v);
+  INSERT INTO u2 VALUES(hex(randomblob(500)), hex(randomblob(1000)));
+  INSERT INTO u2 VALUES(hex(randomblob(500)), hex(randomblob(1000)));
+  INSERT INTO u2 VALUES(hex(randomblob(500)), hex(randomblob(1000)));
+  INSERT INTO u2 VALUES(hex(randomblob(50000)), hex(randomblob(20000)));
+}
+do_recover_test 14 
+
+#-------------------------------------------------------------------------
+reset_db
+execsql {
+  PRAGMA journal_mode=OFF;
+  PRAGMA mmap_size=10;
+}
+do_execsql_test 15.1 {
+  CREATE TABLE t1(x);
+} {}
+do_recover_test 15 
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 16.1 {
+  execsql { PRAGMA journal_mode = wal }
+  execsql {
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(1), (2), (3);
+  }
+} {}
+do_test 16.2 {
+  set R [sqlite3_recover_init db main test.db2]
+  $R run
+  $R finish
+} {}
+do_execsql_test 16.3 {
+  SELECT * FROM t1;
+} {1 2 3}
+
+do_execsql_test 16.4 {
+  BEGIN;
+    SELECT * FROM t1;
+} {1 2 3}
+do_test 16.5 {
+  set R [sqlite3_recover_init db main test.db2]
+  $R run
+  list [catch { $R finish } msg] $msg
+} {1 {cannot start a transaction within a transaction}}
+do_execsql_test 16.6 {
+  SELECT * FROM t1;
+} {1 2 3}
+do_execsql_test 16.7 {
+  INSERT INTO t1 VALUES(4);
+}
+do_test 16.8 {
+  set R [sqlite3_recover_init db main test.db2]
+  $R run
+  list [catch { $R finish } msg] $msg
+} {1 {cannot start a transaction within a transaction}}
+do_execsql_test 16.9 {
+  SELECT * FROM t1;
+  COMMIT;
+} {1 2 3 4}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 17.1 {
+  CREATE TABLE t(a, PRIMARY KEY(a, a COLLATE NOCASE)) WITHOUT ROWID;
+  INSERT INTO t VALUES('abc');
+  INSERT INTO t VALUES('def');
+}
+do_test 17.2 {
+  set R [sqlite3_recover_init db main test.db2]
+  $R run
+  list [catch { $R finish } msg] $msg
+} {0 {}}
+
+#-------------------------------------------------------------------------
+foreach enc {utf8 utf16 utf16le utf16be} {
+  reset_db
+  do_execsql_test 18.$enc.1 {
+    PRAGMA auto_vacuum = 0;
+    PRAGMA encoding='utf16';
+    CREATE TABLE t1(a, b);
+    CREATE TABLE t2(a, b);
+    INSERT INTO t1 VALUES('abc', 'def');
+    PRAGMA writable_schema = 1;
+    DELETE FROM sqlite_schema WHERE name='t1';
+  }
+
+  proc my_sql_hook2 {sql} {
+    if {[string match "INSERT INTO lostandfound*" $sql]} {
+      lappend ::script $sql
+    }
+    return 0
+  }
+  do_test 18.$enc.2 {
+    set ::script [list]
+    set R [sqlite3_recover_init_sql db main my_sql_hook2]
+    $R config lostandfound lostandfound
+    $R run
+    $R finish
+    set ::script
+  } {{INSERT INTO lostandfound VALUES(2, 2, 2, 1, 'abc', 'def')}}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 19.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b TEXT);
+  INSERT INTO t1 VALUES(1, 'one');
+  INSERT INTO t1 VALUES(2, 'two');
+
+  ALTER TABLE t1 ADD COLUMN c NOT NULL DEFAULT 13;
+  INSERT INTO t1 VALUES(3, 'three', 'hello world');
+}
+
+do_recover_test 19.1
+
+
+
+finish_test
+
diff --git a/ext/recover/recover_common.tcl b/ext/recover/recover_common.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..fdf735ee7597f547799019fc5e1ee77860e685b7
--- /dev/null
+++ b/ext/recover/recover_common.tcl
@@ -0,0 +1,14 @@
+
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source $testdir/tester.tcl
+
+if {[info commands sqlite3_recover_init]==""} {
+  finish_test
+  return -code return
+}
+
+
+
diff --git a/ext/recover/recoverbuild.test b/ext/recover/recoverbuild.test
new file mode 100644
index 0000000000000000000000000000000000000000..d119be7fde28625ec06010489239678373e3088d
--- /dev/null
+++ b/ext/recover/recoverbuild.test
@@ -0,0 +1,42 @@
+# 2023 February 28
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname [info script]] recover_common.tcl]
+set testprefix recoverbuild
+
+
+# The following tests verify that if the recovery extension is used with
+# a build that does not support the sqlite_dbpage table, the error message
+# is "no such table: sqlite_dbpage", and not something more generic.
+#
+reset_db
+create_null_module db sqlite_dbpage
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b TEXT);
+  INSERT INTO t1 VALUES(123, 'one hundred and twenty three');
+}
+
+forcedelete test.db2
+do_test 1.1 {
+  set R [sqlite3_recover_init db main test.db2]
+} {/sqlite_recover.*/}
+
+do_test 1.2 {
+  $R run
+} {1}
+
+do_test 1.3 {
+  list [catch { $R finish } msg] $msg
+} {1 {no such table: sqlite_dbpage}}
+
+finish_test
+
diff --git a/ext/recover/recoverclobber.test b/ext/recover/recoverclobber.test
new file mode 100644
index 0000000000000000000000000000000000000000..e096b2e2161f69676ede42c4b5e0459e52ee34ba
--- /dev/null
+++ b/ext/recover/recoverclobber.test
@@ -0,0 +1,50 @@
+# 2019 April 23
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+# Tests for the SQLITE_RECOVER_ROWIDS option.
+#
+
+source [file join [file dirname [info script]] recover_common.tcl]
+set testprefix recoverclobber
+
+proc recover {db output} {
+  set R [sqlite3_recover_init db main test.db2]
+  $R run
+  $R finish
+}
+
+forcedelete test.db2
+do_execsql_test 1.0 {
+  ATTACH 'test.db2' AS aux;
+  CREATE TABLE aux.x1(x, one);
+  INSERT INTO x1 VALUES(1, 'one'), (2, 'two'), (3, 'three');
+
+  CREATE TABLE t1(a, b);
+  INSERT INTO t1 VALUES(1, 1), (2, 2), (3, 3), (4, 4);
+
+  DETACH aux;
+}
+
+breakpoint
+do_test 1.1 {
+  recover db test.db2
+} {}
+
+do_execsql_test 1.2 {
+  ATTACH 'test.db2' AS aux;
+  SELECT * FROM aux.t1;
+} {1 1   2 2   3 3   4 4}
+
+do_catchsql_test 1.3 {
+  SELECT * FROM aux.x1;
+} {1 {no such table: aux.x1}}
+
+finish_test
diff --git a/ext/recover/recovercorrupt.test b/ext/recover/recovercorrupt.test
new file mode 100644
index 0000000000000000000000000000000000000000..eb6fe53add419cb7c788d68a6df6f25fb2ee10fc
--- /dev/null
+++ b/ext/recover/recovercorrupt.test
@@ -0,0 +1,67 @@
+# 2022 August 28
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname [info script]] recover_common.tcl]
+set testprefix recovercorrupt
+
+database_may_be_corrupt
+
+do_execsql_test 1.0 {
+  PRAGMA page_size = 512;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+  INSERT INTO t1 VALUES(1, 2, 3);
+  INSERT INTO t1 VALUES(2, hex(randomblob(100)), randomblob(200));
+  CREATE INDEX i1 ON t1(b, c);
+  CREATE TABLE t2(a PRIMARY KEY, b, c) WITHOUT ROWID;
+  INSERT INTO t2 VALUES(1, 2, 3);
+  INSERT INTO t2 VALUES(2, hex(randomblob(100)), randomblob(200));
+  ANALYZE;
+  PRAGMA writable_schema = 1;
+  DELETE FROM sqlite_schema WHERE name='t2';
+}
+
+do_test 1.1 {
+  expr [file size test.db]>3072
+} {1}
+
+proc toggle_bit {blob bit} {
+  set byte [expr {$bit / 8}]
+  set bit [expr {$bit & 0x0F}]
+  binary scan $blob a${byte}ca* A x B
+  set x [expr {$x ^ (1 << $bit)}]
+  binary format a*ca* $A $x $B
+}
+
+
+db_save_and_close
+for {set ii 0} {$ii < 10000} {incr ii} {
+  db_restore_and_reopen
+  db func toggle_bit toggle_bit
+  set bitsperpage [expr 512*8]
+
+  set pg [expr {($ii / $bitsperpage)+1}]
+  set byte [expr {$ii % $bitsperpage}]
+  db eval {
+    UPDATE sqlite_dbpage SET data = toggle_bit(data, $byte) WHERE pgno=$pg
+  }
+
+    set R [sqlite3_recover_init db main test.db2]
+    $R config lostandfound lost_and_found
+    $R run
+  do_test 1.2.$ii {
+    $R finish
+  } {}
+}
+
+
+finish_test
+
diff --git a/ext/recover/recovercorrupt2.test b/ext/recover/recovercorrupt2.test
new file mode 100644
index 0000000000000000000000000000000000000000..ab6c94804def26971bf10235432e4afe5080d3ad
--- /dev/null
+++ b/ext/recover/recovercorrupt2.test
@@ -0,0 +1,608 @@
+# 2022 August 28
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname [info script]] recover_common.tcl]
+set testprefix recovercorrupt2
+
+do_execsql_test 1.0 {
+  PRAGMA page_size = 512;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+  INSERT INTO t1 VALUES(1, 2, 3);
+  INSERT INTO t1 VALUES(2, hex(randomblob(100)), randomblob(200));
+  CREATE INDEX i1 ON t1(b, c);
+  CREATE TABLE t2(a PRIMARY KEY, b, c) WITHOUT ROWID;
+  INSERT INTO t2 VALUES(1, 2, 3);
+  INSERT INTO t2 VALUES(2, hex(randomblob(100)), randomblob(200));
+  ANALYZE;
+  PRAGMA writable_schema = 1;
+  UPDATE sqlite_schema SET sql = 'CREATE INDEX i1 ON o(world)' WHERE name='i1'; 
+  DELETE FROM sqlite_schema WHERE name='sqlite_stat4';
+}
+
+do_test 1.1 {
+  set R [sqlite3_recover_init db main test.db2]
+  $R run
+  $R finish
+} {}
+
+sqlite3 db2 test.db2
+do_execsql_test -db db2 1.2 {
+  SELECT sql FROM sqlite_schema
+} {
+  {CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c)}
+  {CREATE TABLE t2(a PRIMARY KEY, b, c) WITHOUT ROWID} 
+  {CREATE TABLE sqlite_stat1(tbl,idx,stat)} 
+}
+db2 close
+
+do_execsql_test 1.3 {
+  PRAGMA writable_schema = 1;
+  UPDATE sqlite_schema SET sql = 'CREATE TABLE t2 syntax error!' WHERE name='t2';
+}
+
+do_test 1.4 {
+  set R [sqlite3_recover_init db main test.db2]
+  $R run
+  $R finish
+} {}
+
+sqlite3 db2 test.db2
+do_execsql_test -db db2 1.5 {
+  SELECT sql FROM sqlite_schema
+} {
+  {CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c)}
+  {CREATE TABLE sqlite_stat1(tbl,idx,stat)} 
+}
+db2 close
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_test 2.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 8192 pagesize 4096 filename x3.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 02 00 00 00 02   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 02   ................
+|     96: 00 2e 63 00 0d 00 00 00 01 0f d8 00 0f d8 00 00   ..c.............
+|   4048: 00 00 00 00 00 00 00 00 26 01 06 17 11 11 01 39   ........&......9
+|   4064: 74 61 62 6c 65 74 31 74 31 02 43 52 45 41 54 45   tablet1t1.CREATE
+|   4080: 20 54 41 42 4c 45 20 74 31 28 61 2c 62 2c 63 29    TABLE t1(a,b,c)
+| page 2 offset 4096
+|      0: 0d 00 00 00 01 0f ce 00 0f ce 00 00 00 00 00 00   ................
+|   4032: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ff ff   ..............(.
+|   4048: ff ff ff ff ff ff ff 28 04 27 25 23 61 61 61 61   .........'%#aaaa
+|   4064: 61 61 61 61 61 61 61 61 61 62 62 62 62 62 62 62   aaaaaaaaabbbbbbb
+|   4080: 62 62 62 62 62 63 63 63 63 63 63 63 63 63 63 63   bbbbbccccccccccc
+| end x3.db
+}]} {}
+
+do_test 2.1 {
+  set R [sqlite3_recover_init db main test.db2]
+  $R run
+  $R finish
+} {}
+
+sqlite3 db2 test.db2
+do_execsql_test -db db2 2.2 {
+  SELECT sql FROM sqlite_schema
+} {
+  {CREATE TABLE t1(a,b,c)}
+}
+do_execsql_test -db db2 2.3 {
+  SELECT * FROM t1
+} {}
+db2 close
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_test 3.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+  .open --hexdb
+  | size 4096 pagesize 1024 filename corrupt032.txt.db
+  | page 1 offset 0
+  |      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+  |     16: 04 00 01 01 08 40 20 20 00 00 00 02 00 00 00 03   .....@  ........
+  |     32: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 04   ................
+  |     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+  |     80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 02   ................
+  |     96: 00 2e 24 80 0d 00 00 00 01 03 d4 00 03 d4 00 00   ..$.............
+  |    976: 00 00 00 00 22 01 06 17 11 11 01 31 74 61 62 6c   ...........1tabl
+  |    992: 65 74 31 74 31 02 43 52 45 41 54 45 20 54 41 42   et1t1.CREATE TAB
+  |   1008: 4c 45 20 74 31 28 78 29 00 00 00 00 00 00 00 00   LE t1(x)........
+  | page 2 offset 1024
+  |      0: 0d 00 00 00 01 02 06 00 02 06 00 00 00 00 00 00   ................
+  |    512: 00 00 00 00 00 00 8b 60 01 03 97 46 00 00 00 00   .......`...F....
+  |   1008: 00 00 00 00 00 00 00 03 00 00 00 00 00 00 00 00   ................
+  | end corrupt032.txt.db
+}]} {}
+
+do_test 3.1 {
+  set R [sqlite3_recover_init db main test.db2]
+  $R run
+  $R finish
+} {}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_test 4.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+  .open --hexdb
+  | size 4096 pagesize 4096 filename crash-00f2d3627f1b43.db
+  | page 1 offset 0
+  |      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+  |     16: 00 01 01 02 00 40 20 20 01 00 ff 00 42 01 10 01   .....@  ....B...
+  |     32: ef 00 00 87 00 ff ff ff f0 01 01 10 ff ff 00 00   ................
+  | end crash-00f2d3627f1b43.db
+}]} {}
+
+do_test 4.1 {
+  set R [sqlite3_recover_init db main test.db2]
+  catch { $R run }
+  list [catch { $R finish } msg] $msg
+} {1 {unable to open database file}}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_test 5.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 16384 pagesize 4096 filename crash-7b75760a4c5f15.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 04   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 03 00 00 00 00   ................
+|     96: 00 00 00 00 0d 00 00 00 03 0f 4e 00 0f bc 0f 90   ..........N.....
+|    112: 0f 4e 00 00 00 00 00 00 00 00 00 00 00 00 00 00   .N..............
+|   3904: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 40 03   ..............@.
+|   3920: 06 17 11 11 01 6d 74 61 62 6c 65 74 32 74 32 04   .....mtablet2t2.
+|   3936: 43 52 45 41 54 45 20 54 41 42 4c 45 20 74 32 28   CREATE TABLE t2(
+|   3952: 78 2c 79 2c 7a 20 50 52 49 4d 41 52 59 20 4b 45   x,y,z PRIMARY KE
+|   3968: 59 29 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44   Y) WITHOUT ROWID
+|   3984: 2a 02 06 17 13 11 01 3f 69 6e 64 65 78 74 31 61   *......?indext1a
+|   4000: 74 31 03 43 52 45 41 54 45 20 49 4e 44 45 58 20   t1.CREATE INDEX 
+|   4016: 74 31 61 20 4f 4e 20 74 31 28 61 29 42 01 06 17   t1a ON t1(a)B...
+|   4032: 11 11 01 71 74 61 62 6c 65 74 31 74 31 02 43 52   ...qtablet1t1.CR
+|   4048: 45 41 54 45 20 54 41 42 4c 45 20 74 31 28 61 20   EATE TABLE t1(a 
+|   4064: 49 4e 54 2c 62 20 54 45 58 54 2c 63 20 42 4c 4f   INT,b TEXT,c BLO
+|   4080: 42 2c 64 20 52 45 41 4c 29 20 53 54 52 49 43 54   B,d REAL) STRICT
+| page 2 offset 4096
+|      0: 0d 00 00 00 14 0c ae 00 0f df 0f bd 0f 9a 0f 76   ...............v
+|     16: 0f 51 0f 2b 0f 04 0e dc 0e b3 0e 89 0e 5e 0e 32   .Q.+.........^.2
+|     32: 0e 05 0d 1a 0d a8 0d 78 0d 47 0d 15 0c e2 00 00   .......x.G......
+|   3232: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 32 14   ..............2.
+|   3248: 05 06 3f 34 07 15 f4 c9 23 af e2 b3 b6 61 62 63   ..?4....#....abc
+|   3264: 30 32 30 78 79 7a 01 00 00 00 00 00 00 00 00 00   020xyz..........
+|   3280: 00 00 00 00 00 00 00 00 00 00 c3 b0 96 7e fb 4e   .............~.N
+|   3296: c5 4c 31 13 05 06 1f 32 07 dd f2 2a a5 7e b2 4d   .L1....2...*.~.M
+|   3312: 82 61 62 63 30 31 39 78 79 7a 01 00 00 00 00 00   .abc019xyz......
+|   3328: 00 00 00 00 00 00 00 00 00 00 00 00 00 c3 a3 d6   ................
+|   3344: e9 f1 c2 fd f3 30 12 05 06 1f 30 07 8f 8f f5 c4   .....0....0.....
+|   3360: 35 b6 7f 8d 61 62 63 30 31 38 00 00 00 00 00 00   5...abc018......
+|   3376: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 43   ...............C
+|   3392: b2 13 1f 9d 56 8a 47 21 b1 05 06 1f 2e 07 7f 46   ....V.G!.......F
+|   3408: 91 03 3f 97 fb f7 61 62 63 30 00 00 00 00 00 00   ..?...abc0......
+|   3440: c3 bb d8 96 86 c2 e8 2b 2e 10 05 06 1f 2c 07 6d   .......+.....,.m
+|   3456: 85 7b ce d0 32 d2 54 61 62 63 30 00 00 00 00 00   ....2.Tabc0.....
+|   3488: 43 a1 eb 44 14 dc 03 7b 2d 0f 05 06 1f 2a 07 d9   C..D....-....*..
+|   3504: ab ec bf 34 51 70 f3 61 62 63 30 31 35 78 79 7a   ...4Qp.abc015xyz
+|   3520: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 c3   ................
+|   3536: b6 3d f4 46 b1 6a af 2c 0e 05 06 1f 28 07 36 75   .=.F.j.,....(.6u
+|   3552: e9 a2 bd 05 04 ea 61 62 63 30 31 34 78 79 7a 00   ......abc014xyz.
+|   3568: 00 00 00 00 00 00 00 00 00 00 00 00 00 c3 ab 23   ...............#
+|   3584: a7 6a 34 ca f8 2b 0d 05 06 1f 26 07 48 45 ab e0   .j4..+....&.HE..
+|   3600: 8c 7c ff 0c 61 62 63 30 31 33 78 79 7a 00 00 00   .|..abc013xyz...
+|   3616: 00 00 00 00 0d d0 00 00 00 00 43 b8 d3 93 f4 92   ..........C.....
+|   3632: 5b 7a 2a 0c 05 06 1f 24 07 be 6d 1e db 61 5d 80   [z*....$..m..a].
+|   3648: 9f 61 62 63 30 31 32 78 79 7a 00 00 00 00 00 00   .abc012xyz......
+|   3664: 00 00 00 00 00 00 43 b5 a1 a4 af 7b c6 60 29 0b   ......C......`).
+|   3680: 05 06 1f 22 07 6e a2 a3 64 68 d4 a6 bd 61 62 63   .....n..dh...abc
+|   3696: 30 31 31 78 79 7a 00 00 00 00 00 00 00 00 00 00   011xyz..........
+|   3712: 00 c3 c4 1e ff 0f fc e6 ff 28 0a 05 06 1f 20 07   .........(.... .
+|   3728: 50 f9 4a bb a5 7a 1e ca 61 62 63 30 31 30 78 79   P.J..z..abc010xy
+|   3744: 7a 00 00 00 00 00 00 00 00 00 00 c3 a7 90 ed d9   z...............
+|   3760: 5c 2c d5 27 09 05 06 1f 1e 07 90 8e 1d d9 1c 3a   .,.'...........:
+|   3776: e8 c1 61 62 63 30 30 39 78 79 7a 00 00 00 00 00   ..abc009xyz.....
+|   3792: 00 00 00 00 43 a7 97 87 cf b0 ff 79 26 08 05 06   ....C......y&...
+|   3808: 1f 1c 07 86 65 f6 7c 50 7a 2c 76 61 62 63 30 30   ....e.|Pz,vabc00
+|   3824: 38 78 79 7a 00 00 00 00 00 00 00 00 c3 b0 e3 4c   8xyz...........L
+|   3840: 4f d3 41 b5 25 07 05 06 1f 1a 07 8b 20 e5 68 11   O.A.%....... .h.
+|   3856: 13 55 87 61 62 63 30 30 37 78 79 7a 00 00 00 00   .U.abc007xyz....
+|   3872: 00 00 00 c3 b6 a3 74 f1 9c 33 f8 24 06 05 06 1f   ......t..3.$....
+|   3888: 18 07 97 3c bc 34 49 94 54 ab 61 62 63 30 30 36   ...<.4I.T.abc006
+|   3904: 78 79 7a 00 00 00 00 00 00 c3 88 00 c2 ca 4c 4d   xyz...........LM
+|   3920: d3 23 05 05 06 1f 16 07 59 37 11 10 e9 e5 3d d5   .#......Y7....=.
+|   3936: 61 62 63 30 30 35 78 79 7a 00 00 00 00 00 c3 c0   abc005xyz.......
+|   3952: 15 12 67 ed 4b 79 22 04 05 06 1f 14 07 93 39 01   ..g.Ky........9.
+|   3968: 7f b8 c7 99 58 61 62 63 30 30 34 78 79 7a 00 00   ....Xabc004xyz..
+|   3984: 09 c0 43 bf e0 e7 6d 70 fd 61 21 03 05 06 1f 12   ..C...mp.a!.....
+|   4000: 07 b6 df 8d 8b 27 08 22 5a 61 62 63 30 30 33 78   .....'..Zabc003x
+|   4016: 79 7a 00 00 00 c3 c7 ea 0f dc dd 32 22 20 02 05   yz.........2. ..
+|   4032: 06 1f 10 07 2f a6 da 71 df 66 b3 b5 61 62 63 30   ..../..q.f..abc0
+|   4048: 30 32 78 79 7a 00 00 c3 ce d9 8d e9 ec 20 45 1f   02xyz........ E.
+|   4064: 01 05 06 1f 0e 07 5a 47 53 20 3b 48 8f c0 61 62   ......ZGS ;H..ab
+|   4080: 63 30 30 31 78 79 7a 00 c3 c9 e6 81 f8 d9 24 04   c001xyz.......$.
+| page 3 offset 8192
+|      0: 0a 00 00 00 14 0e fd 00 0f f3 0f e6 0f d9 0f cc   ................
+|     16: 0f bf 0f b2 0f a5 0f 98 0f 8b 0f 7e 0f 71 0f 64   ...........~.q.d
+|     32: 0f 57 0f 4a 0f 3d 0f 30 0f 24 00 00 00 00 00 00   .W.J.=.0.$......
+|   3824: 00 00 00 00 00 00 00 00 00 00 00 00 00 0c 03 06   ................
+|   3840: 01 7f 46 91 03 3f 97 fb f7 11 0c 03 06 01 6e a2   ..F..?........n.
+|   3856: a3 64 68 d4 a6 bd 0b 0c 03 06 01 6d 85 7b ce d0   .dh........m....
+|   3872: 32 d2 54 10 0b 03 06 09 5a 47 53 20 3b 48 8f c0   2.T.....ZGS ;H..
+|   3888: 0c 03 06 01 59 37 11 10 e9 e5 3d d5 05 0c 03 06   ....Y7....=.....
+|   3904: 01 50 f9 4a bb a5 7a 1e ca 0a 0c 03 06 01 48 45   .P.J..z.......HE
+|   3920: ab e0 8c 7c ff 0c 0d 0c 03 06 01 36 75 e9 a2 bd   ...|.......6u...
+|   3936: 05 04 ea 0e 0c 03 06 01 2f a6 da 71 df 66 b3 b5   ......../..q.f..
+|   3952: 02 0c 03 06 01 15 f4 c9 23 af e2 b3 b6 14 0c 03   ........#.......
+|   3968: 06 01 dd f2 2a a5 7e b2 4d 82 13 0c 03 06 01 d9   ....*.~.M.......
+|   3984: ab ec bf 34 51 70 f3 0f 0c 03 06 01 be 6d 1e db   ...4Qp.......m..
+|   4000: 61 5d 80 9f 0c 0c 03 06 01 b6 df 8d 8b 27 08 22   a]...........'..
+|   4016: 5a 03 0c 03 06 01 97 3c bc 34 49 94 54 ab 06 0c   Z......<.4I.T...
+|   4032: 03 06 01 93 39 01 7f b8 c7 99 58 04 0c 03 06 01   ....9.....X.....
+|   4048: 90 8e 1d d9 1c 3a e8 c1 09 0c 03 06 01 8f 8f f5   .....:..........
+|   4064: c4 35 b6 7f 8d 12 0c 03 06 01 8b 20 e5 68 11 13   .5......... .h..
+|   4080: 55 87 07 0c 03 06 01 86 65 f6 7c 50 7a 2b 06 08   U.......e.|Pz+..
+| page 4 offset 12288
+|      0: 0a 00 00 00 14 0f 62 00 0f 7a 0f a1 0f c9 0f d9   ......b..z......
+|     16: 0f 81 0f d1 0f f1 0f f9 0f e1 0f 89 0e 6a 0f c1   .............j..
+|     32: 0f 91 0f 99 0f b9 0f 72 0f 62 0f e9 0f b1 0f a9   .......r.b......
+|   3936: 00 00 07 04 01 01 01 11 0e 9e 07 04 01 01 01 0b   ................
+|   3952: 31 16 07 04 01 01 01 10 37 36 06 04 09 01 01 ab   1.......76......
+|   3968: 58 07 04 01 01 01 05 1c 28 07 04 01 01 01 0a 10   X.......(.......
+|   3984: cf 07 04 01 01 01 0d b2 e3 07 04 01 01 01 0e d3   ................
+|   4000: f2 07 04 01 01 01 02 41 ad 07 04 01 01 01 14 3e   .......A.......>
+|   4016: 22 07 04 01 01 01 13 27 45 07 04 01 01 01 0f ad   .......'E.......
+|   4032: dd 07 04 01 01 01 0c 2e a1 07 04 01 01 01 03 df   ................
+|   4048: e1 07 04 01 01 01 06 59 a7 07 04 01 01 01 04 27   .......Y.......'
+|   4064: bd 07 04 01 01 01 09 d0 e0 07 04 01 01 01 12 39   ...............9
+|   4080: 4f 07 04 01 01 01 07 c4 11 06 04 00 00 00 00 00   O...............
+| end crash-7b75760a4c5f15.db
+}]} {}
+
+do_test 5.1 {
+  set R [sqlite3_recover_init db main test.db2]
+  catch { $R run }
+  list [catch { $R finish } msg] $msg
+} {0 {}}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_test 6.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 8192 pagesize 4096 filename abc.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 02 00 00 00 02   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 02   ................
+|     96: 00 2e 6e b8 0d 00 00 00 01 0f dc 00 0f dc 00 00   ..n.............
+|   4048: 00 00 00 00 00 00 00 00 00 00 00 00 22 01 06 17   ................
+|   4064: 11 11 01 31 74 61 62 6c 65 74 31 74 31 02 43 52   ...1tablet1t1.CR
+|   4080: 45 41 54 45 20 54 41 42 4c 45 20 74 31 28 78 29   EATE TABLE t1(x)
+| page 2 offset 4096
+|      0: 0d 00 00 00 01 0f e2 00 0f e2 00 00 00 00 00 00   ................
+|   4064: 00 00 1c 01 02 41 61 62 63 64 65 66 67 68 69 6a   .....Aabcdefghij
+|   4080: 6b 6c 6d 6e 6f 70 71 72 73 74 75 76 77 78 79 7a   klmnopqrstuvwxyz
+| end abc.db
+}]} {}
+do_test 6.1 {
+  set R [sqlite3_recover_init db main test.db2]
+  catch { $R run }
+  list [catch { $R finish } msg] $msg
+} {0 {}}
+
+reset_db
+breakpoint
+do_test 6.2 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 8192 pagesize 4096 filename abc.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 02 00 00 00 02   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 02   ................
+|     96: 00 2e 6e b8 0d 00 00 00 01 0f dc 00 0f dc 00 00   ..n.............
+|   4048: 00 00 00 00 00 00 00 00 00 00 00 00 22 01 06 17   ................
+|   4064: 11 11 01 31 74 61 62 6c 65 74 31 74 31 02 43 52   ...1tablet1t1.CR
+|   4080: 45 41 54 45 20 54 41 42 4c 45 20 74 31 28 78 29   EATE TABLE t1(x)
+| page 2 offset 4096
+|      0: 0d 00 00 00 01 0f e2 00 0f e2 00 00 00 00 00 00   ................
+|   4064: 00 00 1c 01 02 8F FF FF FF 7E 65 66 67 68 69 6a   .....Aabcdefghij
+|   4080: 6b 6c 6d 6e 6f 70 71 72 73 74 75 76 77 78 79 7a   klmnopqrstuvwxyz
+| end abc.db
+}]} {}
+do_test 6.3 {
+  set R [sqlite3_recover_init db main test.db2]
+  catch { $R run }
+  list [catch { $R finish } msg] $msg
+} {0 {}}
+
+reset_db
+breakpoint
+do_test 7.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 4108 pagesize 4096 filename x1.db
+| page 1 offset 0
+|      0: 02 01 00 00 00 00 14 15 40 00 00 00 00 00 00 00   ........@.......
+|     16: 33 3a 6d 65 6d 6f 72 79 3a 02 02 02 02 02 02 02   3:memory:.......
+|     32: 02 02 02 02 02 02 12 02 02 02 63 6f 6c 6f 72 20   ..........color 
+|     48: 73 70 61 63 00 f3 a0 81 a1 00 00 a0 02 02 02 02   spac............
+|     64: 69 95 73 6f 36 00 ff 0d 00 97 8c 90 3f 0a 70 02   i.so6.......?.p.
+|     80: 02 02 02 02 02 02 02 02 02 02 02 02 02 01 00 00   ................
+|     96: 06 02 02 02 02 5f 02 02 02 2c 02 02 02 02 02 02   ....._...,......
+|    112: 02 02 02 02 02 02 02 02 02 12 02 02 02 63 6f 6c   .............col
+|    128: 6f 72 20 73 70 61 63 00 f3 a0 81 a1 00 00 a0 02   or spac.........
+|    144: 02 02 02 69 95 73 6f 36 00 ff 0d 00 97 8c 90 3f   ...i.so6.......?
+|    160: 0a 70 02 02 02 02 02 02 02 02 02 02 02 02 02 02   .p..............
+|    176: 01 00 00 06 02 02 02 02 5f 02 02 02 2c 02 02 00   ........_...,...
+|    192: 00 01 00 01 00 00 00 01 00 02 fe 00 00 03 00 01   ................
+|    208: 00 00 00 01 c5 04 00 00 00 01 00 01 00 00 00 01   ................
+|    224: 00 fa 02 00 00 00 03 00 01 00 00 00 81 00 04 00   ................
+|    240: 00 00 01 00 01 00 00 00 01 00 02 00 fe 00 03 00   ................
+|    256: 01 00 00 00 01 00 04 00 00 00 01 00 01 00 00 00   ................
+|    272: 01 00 02 00 00 00 03 00 01 00 00 00 01 00 04 00   ................
+|    288: 00 00 01 00 01 00 00 00 01 00 02 00 00 00 03 00   ................
+|    304: 01 00 00 00 01 00 04 00 00 00 01 00 01 00 00 00   ................
+|    320: 01 00 02 00 00 00 03 00 01 00 00 00 40 00 84 00   ............@...
+|    336: 84 00 84 00 01 00 00 00 09 00 06 00 f5 00 01 00   ................
+|    352: 08 01 03 00 03 00 62 00 62 00 23 00 01 00 62 00   ......b.b.#...b.
+|    368: 04 00 1e 00 62 00 62 00 62 00 01 00 00 00 0a 00   ....b.b.b.......
+|    384: 01 00 03 00 01 00 03 00 04 00 02 00 01 00 01 00   ................
+|    400: 08 00 01 00 31 c6 00 03 00 0c 00 12 00 18 00 02   ....1...........
+|    416: 00 05 00 08 00 02 00 06 00 08 00 02 00 07 00 08   ................
+|    432: 00 02 00 01 00 01 00 08 00 01 00 0c 00 03 00 16   ................
+|    448: 00 1c 00 22 00 01 00 03 00 05 00 06 00 07 00 02   ................
+|    464: 00 05 00 09 00 02 00 06 00 09 00 02 00 07 00 09   ................
+|    480: 00 00 00 00 01 00 05 00 00 00 01 00 01 00 00 00   ................
+|    496: 01 00 02 00 00 00 03 00 01 00 00 00 01 00 04 00   ................
+|    512: 00 00 01 00 01 00 00 00 01 00 02 00 00 00 03 00   ................
+|    528: 01 00 00 00 01 00 04 00 00 00 01 00 01 00 00 00   ................
+|    544: 01 00 02 00 00 f6 03 00 00 02 00 00 01 00 04 00   ................
+|    560: 00 00 01 00 01 00 00 00 01 00 02 00 00 00 03 00   ................
+|    576: 01 00 00 00 01 00 04 00 00 00 01 00 01 00 00 00   ................
+|    592: 01 00 02 00 00 00 03 00 01 00 00 00 01 00 04 00   ................
+|    608: 00 00 01 00 01 00 00 00 01 00 02 00 00 00 03 00   ................
+|    624: 01 00 00 00 01 00 04 00 00 00 01 00 01 00 00 00   ................
+|    640: 01 3d 02 00 00 00 03 00 06 00 00 00 01 00 01 00   .=..............
+|    656: 00 00 01 00 01 00 00 00 01 00 02 00 00 00 03 00   ................
+|    672: 01 00 00 00 01 00 04 00 00 00 01 00 01 00 00 00   ................
+|    688: 01 00 02 00 00 00 55 52 4c 52 65 71 75 65 73 74   ......URLRequest
+|    704: 43 6f 6e 00 00 00 01 01 0e d4 00 04 00 00 00 01   Con.............
+|    720: 0e f8 00 04 00 00 00 01 0f 1c 00 04 00 00 00 01   ................
+|    736: 0f 00 00 01 00 00 00 01 0f 86 00 01 00 00 00 01   ................
+|    752: 0f 84 00 01 00 00 00 01 00 00 01 0f c0 00 01 00   ................
+|    768: 00 00 01 0f e8 00 d6 0f 00 01 6f 00 02 0f d6 00   ..........o.....
+|    784: 02 34 03 03 03 00 01 00 00 00 01 00 05 00 00 00   .4..............
+|    800: 01 00 01 00 00 00 01 00 02 00 00 00 03 00 01 00   ................
+|    816: 00 00 01 00 04 00 00 00 01 00 01 00 00 00 01 00   ................
+|    832: 02 00 00 00 03 00 01 00 10 00 01 00 04 00 00 00   ................
+|    848: 01 00 01 00 00 00 01 00 02 00 00 00 03 00 00 02   ................
+|    864: 00 00 01 40 04 00 00 03 01 00 01 00 00 00 01 00   ...@............
+|    880: 02 00 00 00 03 00 01 00 00 00 00 00 01 0e f8 00   ................
+|    896: 04 77 4f 46 32 73 40 23 70 00 00 00 70 00 1f 00   .wOF2s@#p...p...
+|    912: 00 00 d8 00 00 00 ff ff 00 00 00 00 43 00 00 00   ............C...
+|    928: 00 00 ff ff ff ff ff 00 00 a8 00 00 0c 00 00 00   ................
+|   1024: 00 00 00 00 00 00 00 00 00 00 10 22 00 22 0f 00   ................
+|   1040: 00 00 00 00 00 00 10 22 00 00 70 00 1f 00 00 0f   ..........p.....
+|   1056: d8 00 00 00 00 00 00 00 00 00 03 00 00 00 00 00   ................
+|   1072: 00 01 00 00 00 3f 23 70 00 00 00 01 0f 1c 00 04   .....?#p........
+|   1088: 00 00 00 01 0f 40 00 01 00 00 00 01 0f 86 00 01   .....@..........
+|   1104: 00 00 00 01 0f 84 00 01 00 00 00 01 00 00 01 0f   ................
+|   1120: c0 00 01 00 00 00 01 0f e8 00 01 0f d6 00 6f 00   ..............o.
+|   1136: 02 0f d6 00 03 02 31 03 2b 03 2a f2 00 0f d4 00   ......1.+.*.....
+|   1152: 01 00 08 00 01 00 04 03 2b 00 02 02 32 00 01 0f   ........+...2...
+|   1168: c8 01 15 00 02 20 c8 00 02 12 ad 02 00 24 06 c0   ..... .......$..
+|   1184: 00 00 00 03 00 00 01 24 00 2a 06 e4 00 00 00 03   .......$.*......
+|   1200: 00 00 01 25 00 38 07 0e 00 00 00 03 00 00 01 26   ...%.8.........&
+|   1216: 00 34 07 46 00 00 00 03 00 00 01 27 00 1c 07 7a   .4.F.......'...z
+|   1232: 00 00 00 03 00 00 01 28 00 2a 07 96 00 00 00 03   .......(.*......
+|   1248: 00 e5 01 29 00 34 07 c0 00 00 00 03 00 00 01 2a   ...).4.........*
+|   1264: 67 34 07 f4 00 00 00 03 00 00 01 2b 00 22 08 28   g4.........+...(
+|   1280: 00 00 00 00 01 00 01 00 00 00 01 00 02 00 00 00   ................
+|   1296: 03 00 01 00 00 00 01 00 00 00 01 00 00 00 01 00   ................
+|   1312: 01 00 00 00 01 00 02 00 00 00 03 00 00 02 00 00   ................
+|   1328: 01 00 04 00 00 00 01 00 01 00 00 00 01 00 02 00   ................
+|   1344: 00 00 03 00 01 00 00 00 01 00 04 00 00 00 01 00   ................
+|   1360: 01 00 00 00 01 00 02 00 00 00 03 00 01 00 00 21   ...............!
+|   1376: 04 00 01 00 00 00 00 00 01 00 00 00 01 00 02 00   ................
+|   1392: 00 00 03 00 01 00 00 00 01 00 04 00 00 00 01 00   ................
+|   1408: 01 00 00 00 01 00 02 00 00 00 03 00 01 00 00 00   ................
+|   1424: 01 00 05 00 00 00 01 00 01 00 00 01 00 02 02 02   ................
+|   1440: 12 02 02 02 63 6f 6c 6f 72 20 73 70 61 63 00 f3   ....color spac..
+|   1456: a0 81 a1 00 00 a0 02 02 02 02 69 95 73 6f 36 00   ..........i.so6.
+|   1472: ff 0d 00 97 8c 90 3f 0a 70 02 02 02 02 02 02 02   ......?.p.......
+|   1488: 02 02 02 02 02 02 02 01 00 00 06 02 02 02 02 5f   ..............._
+|   1504: 02 02 02 2c 02 02 00 00 01 00 01 00 00 00 01 00   ...,............
+|   1520: 02 fe 00 00 03 00 01 00 00 00 01 c5 04 00 00 00   ................
+|   1536: 01 00 01 00 00 00 01 00 02 00 00 00 03 00 01 00   ................
+|   1552: 00 00 81 00 04 00 00 00 01 00 01 00 00 00 01 00   ................
+|   1568: 02 00 fe 00 03 00 01 00 00 00 01 00 04 00 00 00   ................
+|   1584: 01 00 01 00 00 00 01 00 02 00 00 00 03 00 01 00   ................
+|   1600: 00 00 01 00 04 00 00 00 01 00 01 00 00 00 01 00   ................
+|   1616: 02 00 00 00 03 00 01 00 00 00 01 00 04 00 00 00   ................
+|   1632: 01 00 01 00 00 00 01 00 02 00 00 00 03 00 01 00   ................
+|   1648: 00 00 40 00 84 00 84 00 84 00 01 00 00 00 09 00   ..@.............
+|   1664: 06 00 f5 00 01 00 08 01 03 15 15 15 15 15 15 15   ................
+|   1680: 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15   ................
+|   1696: 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15   ................
+|   1712: 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15   ................
+|   1728: 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15   ................
+|   1744: 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15   ................
+|   1760: 15 15 15 15 15 15 15 15 15 15 15 00 03 00 62 00   ..............b.
+|   1776: 62 00 23 00 01 00 62 00 04 00 1e 00 62 00 62 00   b.#...b.....b.b.
+|   1792: 62 00 01 00 00 00 0a 00 01 00 03 00 01 00 03 00   b...............
+|   1808: 04 00 02 00 01 00 01 00 08 00 01 00 31 c6 00 03   ............1...
+|   1824: 00 0c 00 12 00 18 00 02 00 05 00 08 00 02 00 06   ................
+|   1840: 00 08 00 02 00 07 00 08 00 02 00 01 00 01 00 08   ................
+|   1856: 00 01 00 0c 00 03 00 16 00 1c 00 22 00 01 00 03   ................
+|   1872: 00 05 00 06 00 07 00 02 00 05 00 09 00 02 00 06   ................
+|   1888: 00 09 00 02 00 07 00 09 00 00 00 00 01 00 05 00   ................
+|   1904: 00 00 01 00 01 00 00 00 01 00 02 00 00 00 03 00   ................
+|   1920: 01 00 00 00 01 00 04 00 00 00 01 00 01 00 00 00   ................
+|   1936: 01 00 02 00 00 00 03 00 01 00 00 00 01 00 04 00   ................
+|   1952: 00 00 01 0f d6 00 02 34 03 03 03 00 01 00 00 00   .......4........
+|   1968: 01 00 05 00 00 00 01 00 01 00 00 00 01 00 02 00   ................
+|   1984: 00 00 03 00 01 00 00 00 01 00 04 00 00 00 01 00   ................
+|   2000: 01 00 00 00 01 00 02 fc 42 dc 19 5c 74 23 18 cd   ........B...t#..
+|   2016: b3 a5 a8 7a 90 40 1d 66 12 5d e5 4f 85 00 68 f4   ...z.@.f.].O..h.
+|   2032: 05 98 86 25 24 dd bc c2 f6 f6 4e a3 e2 61 d2 c6   ...%$.....N..a..
+|   2048: aa c1 56 50 d4 80 82 35 f1 e2 59 41 50 a6 da 51   ..VP...5..YAP..Q
+|   2064: d4 62 9c 19 94 58 aa 31 30 8a 22 c2 5f 33 2b c9   .b...X.10..._3+.
+|   2080: b6 e6 b4 11 4e 51 82 c4 d8 b6 d8 b4 06 04 fb 68   ....NQ.........h
+|   2096: f4 d2 6f e7 cb 8a a8 82 d5 74 00 00 00 00 00 00   ..o......t......
+|   2368: 00 00 00 00 00 00 00 00 00 08 00 00 00 00 00 00   ................
+|   2432: 00 00 00 00 00 03 00 01 00 10 00 01 00 04 00 00   ................
+|   2448: 00 01 00 01 00 00 00 01 00 02 00 00 00 03 00 00   ................
+|   2464: 02 00 00 01 40 04 00 00 03 01 00 01 00 00 00 01   ....@...........
+|   2480: 00 02 00 00 00 03 00 01 00 00 00 00 00 01 0e f8   ................
+|   2496: 00 04 77 4f 46 32 73 40 23 70 00 00 00 70 00 1f   ..wOF2s@#p...p..
+|   2512: 00 00 00 d8 00 00 00 ff ff 00 00 00 00 43 00 00   .............C..
+|   2528: 00 00 00 ff ff ff ff ff 00 00 a8 00 00 0c 00 00   ................
+|   2624: 00 00 00 00 00 00 00 00 00 00 00 10 22 00 22 0f   ................
+|   2640: 00 00 00 00 00 00 00 10 22 00 00 70 00 1f 00 00   ...........p....
+|   2656: 0f d8 00 00 00 00 00 00 00 00 00 03 00 00 00 00   ................
+|   2672: 00 00 01 00 00 00 3f 23 70 00 00 00 01 0f 1c 00   ......?#p.......
+|   2688: 04 00 00 00 01 0f 40 00 01 00 00 00 01 0f 86 00   ......@.........
+|   2704: 01 00 00 00 01 0f 84 00 01 00 00 00 01 00 00 01   ................
+|   2720: 0f c0 00 01 00 00 00 01 0f e8 00 01 0f d6 00 6f   ...............o
+|   2736: 00 02 0f d6 00 03 02 31 03 2b 03 2a f2 00 0f d4   .......1.+.*....
+|   2752: 00 01 00 08 00 01 00 04 03 2b 00 02 02 32 00 01   .........+...2..
+|   2768: 0f c8 01 15 00 02 20 c8 00 02 12 ad 02 00 24 06   ...... .......$.
+|   2784: c0 00 00 5a 03 00 00 01 24 00 2a 06 e4 00 00 00   ...Z....$.*.....
+|   2800: 03 00 00 01 25 00 38 07 0e 00 00 00 03 00 00 01   ....%.8.........
+|   2816: 26 00 34 07 46 00 00 00 03 00 00 01 27 00 1c 07   &.4.F.......'...
+|   2832: 7a 00 00 00 03 00 00 01 28 00 2a 07 96 00 00 00   z.......(.*.....
+|   2848: 03 00 e5 01 29 00 34 07 c0 00 00 00 03 00 00 01   ....).4.........
+|   2864: 2a 67 34 07 f4 00 00 00 03 00 00 01 2b 00 22 08   *g4.........+...
+|   2880: 28 00 00 00 00 01 00 01 00 00 00 01 00 02 00 00   (...............
+|   2896: 00 03 00 01 00 00 00 01 00 00 00 01 00 00 00 01   ................
+|   2912: 00 01 00 00 00 01 00 02 00 00 00 03 00 00 02 00   ................
+|   2928: 00 01 00 04 00 00 00 01 00 01 00 00 00 00 00 00   ................
+|   2992: 00 48 00 00 00 00 00 00 00 00 00 00 00 00 00 00   .H..............
+|   3504: 00 00 00 00 00 00 00 00 00 00 00 97 00 00 00 00   ................
+|   3904: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 09   ................
+|   3920: 03 fe 00 00 01 36 00 3c 0a 38 00 00 00 03 00 00   .....6.<.8......
+|   3936: 01 37 00 20 0a 74 00 00 00 fb ff ff 00 38 00 2a   .7. .t.......8.*
+|   3952: 0a 94 00 00 00 03 00 00 01 39 4f 54 54 4f 00 0e   .........9OTTO..
+|   3968: 00 80 00 03 00 60 43 46 46 20 e3 ae 89 2a 00 00   .....`CFF ...*..
+|   3984: 02 b0 00 00 02 76 42 50 4f 53 00 15 00 0a 00 00   .....vBPOS......
+|   4000: 05 28 00 00 00 0c 54 53 55 42 c9 70 c3 06 00 00   .(....TSUB.p....
+|   4016: 05 34 1f 00 40 00 48 00 00 00 00 00 00 00 00 00   .4..@.H.........
+|   4064: 00 00 00 00 00 08 00 01 00 01 00 01 00 01 00 06   ................
+|   4080: 00 02 00 08 00 01 00 01 00 01 00 01 00 00 00 00   ................
+| end x1.db
+}]} {}
+do_test 7.1 {
+  set R [sqlite3_recover_init db main test.db2]
+  catch { $R run }
+  list [catch { $R finish } msg] $msg
+} {1 {file is not a database}}
+
+reset_db
+do_test 8.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 8192 pagesize 4096 filename db.sqlite
+| page 1 offset 0
+|      0: ac ae b3 76 74 65 20 66 6f 72 6d 61 74 20 33 00   ...vte format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 01 00 00 00 02   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01   ................
+|     96: 00 2e 76 8a 0d ff ff ff 1e 0f cb 00 0f cb 00 00   ..v.............
+|   4032: 00 00 00 00 00 00 00 00 00 00 00 33 01 06 17 19   ...........3....
+|   4048: 19 01 43 74 61 62 6c 65 54 61 62 6c 65 30 54 61   ..CtableTable0Ta
+|   4064: 62 6c 65 30 02 43 52 45 41 54 45 20 54 41 42 4c   ble0.CREATE TABL
+|   4080: 45 20 54 61 62 6c 65 30 20 28 43 6f 6c 30 20 29   E Table0 (Col0 )
+| page 2 offset 4096
+|      0: 0d 00 00 00 00 10 00 00 00 00 00 00 00 00 00 00   ................
+| end db.sqlite
+}]} {}
+
+do_test 8.1 {
+  set R [sqlite3_recover_init db main test.db2]
+  catch { $R run }
+  list [catch { $R finish } msg] $msg
+} {0 {}}
+
+reset_db
+do_test 9.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 16384 pagesize 4096t 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 06   ........
+|     32: 00 00 00 0r 00 00 00 00 00 00 00 06 00 00 00 04 ..
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ........
+|     96: 00 00 00 00 0d 00 00 00 06 0d e2 00 0f c4 0f 6a   .......j
+|    112: 0e fc 0e 9d 0e 3d 0d e2 00 00 00 00 00 00 00 00  .
+|   3552: 00 00 59 06 06 17 21 21 01 7f 74 61 62 6c 65 74   ..tablet
+|   3568: 74 74 5f 63 6f 6e 66 69 67 74 74 74 5f 63 6f 6econ
+|   3584: 66 69 67 06 43 52 45 41 54 45 20 54 41 42 4c 45   
+|   3616: 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29 20 ) 
+|   3632: 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5e 05 07   WOWID^..
+|   3648: 17 23 23 01 81 03 74 61 62 6c 65 74 74 74 5f 6tt_d
+|   3664: 6f 63 73 69 7a 65 74 74 74 5f 64 6f 63 73 69 7a  z
+|   3680: 65 05 43 52 45 41 54 45 20 54 41 42 4c 45 20 27   e.ABLE '
+|   3696: 74 74 74 5f 64 6f 63 73 69 7a 65 27 28 69 64 20id 
+|   3712: 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59 20   
+|   3728: 4b 45 59 2c 20 73 7a 20 42 4c 4f 42 29 5d 04 07   KEYB)]..
+|   3744: 17 23 23 01 81 B1 74 61 62 6c 65 74 74 74 5f 63 _c
+|   3760: 6f 6e 74 65 6e 74 74 74 74 5f 63 6f 6e 74 65 6e   o_conten
+|   3776: 7 04 01 03 00 011 54 45 20 54 41 42 4c 45 20 27   t.CRLE '
+|   3792: 74 74 74 5f 63 6f 6e 74 65 6e 74 27 28 69 64 20   
+|   3808: 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59 20   INIMARY 
+|   3904: 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45 59 28 7EY(s
+|   3920: 65 67 69 64 2c 20 74 65 72 6d 29 29 20 57 49 54  T
+|   3936: 48 4f 55 54 20 52 4f 57 49 4 58 58 02 07 17 1d 1d  ..
+|   3952: 01 81 03 74 61 62 6c 65 74 74 74 5f 64 61 74 61   .tt_data
+|   3968: 74 74 74 5f 64 61 74 61 02 43 52 45 41 54 45 2ATE 
+|   3984: 54 41 42 4c 45 20 27 74 74 74 5f 64 61 74 61 27  '
+|   4000: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   (iR PRIM
+|   4016: 41 52 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42k B
+|   4032: 4c 4f 42 29 3a 01 06 17 13 13 08 5f 74 61 62 6c   
+|   4048: 65 74 74 74 74 74 74 43 52 45 41 54 45 20 56 49   ettTE VI
+|   4064: 52 54 55 41 4c 20 54 41 42 4c 45 20 74 74 74 20 t 
+|   4080: 55 53 49 4e 47 20 66 74 73 35 28 61 2c 20 62 29   U5(a, b)
+| page 4 offset 12288
+|      0: 0a 00 00 00 03 0f ea 00 0f fa 0f f2 0f ea 00 00   ........
+|   4064: 00 00 00 00 00 00 00 00 00 00 07 04 01 01 01 05 ..
+|   4080: 06 03 07 04 01 01 01 03 04 02 05 04 09 01 09 02   ........
+| end ro2.t
+}]} {}
+
+do_test 9.1 {
+  set R [sqlite3_recover_init db main test.db2]
+  catch { $R run }
+  list [catch { $R finish } msg] $msg
+} {0 {}}
+
+
+finish_test
+
diff --git a/ext/recover/recovercorrupt3.test b/ext/recover/recovercorrupt3.test
new file mode 100644
index 0000000000000000000000000000000000000000..9a7c2d09469001ace9c0ce32b0eaf46b13d17639
--- /dev/null
+++ b/ext/recover/recovercorrupt3.test
@@ -0,0 +1,549 @@
+# 2024 May 1
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname [info script]] recover_common.tcl]
+set testprefix recovercorrupt3
+
+#|      0: d5 d5 9b d5 d5 d5 d5 d5 d5 d5 d5 d5 d5 d5 d5 d5   ................
+#|     16: 04 00 00 00 1d 00 00 00 00 00 00 00 5f 5f 5f 5f   ............____
+#|     32: 5f 5f 5f 5f 5f 5f 5f 5f 71 5f 5f 5f 02 02 02 02   ________q___....
+#|     48: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+#|     64: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+#|     80: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+#|     96: 02 02 02 02
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 1.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 3821 pagesize 1024 filename clusterfuzz-testcase-sql_recovery_fuzzer-5803962339885056
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 01 00 00 00 02   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01   ................
+|     96: 00 2e 7a 70 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    112: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    128: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    144: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    160: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    176: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    192: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    208: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    224: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    240: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    256: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    272: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    288: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    304: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    320: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    336: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    352: 02 02 02 02 a0 02 02 02 02 02 02 02 02 02 02 02   ................
+|    368: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    384: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    400: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    416: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    432: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    448: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 29 29   ..............))
+|    464: 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29   ))))))))))))))))
+|    480: 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29   ))))))))))))))))
+|    496: 29 29 29 dd dd dd dd dd dd dd dd dd dd dd dd dd   ))).............
+|    512: dd dd dd dd dd dd dd dd dd 6e 69 d2 e9 e9 e9 d2   .........ni.....
+|    528: d2 d2 d2 d2 dd dd dd dd dd dd dd dd dd dd dd dd   ................
+|    544: dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd   ................
+|    560: dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd   ................
+|    576: dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd   ................
+|    592: dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd   ................
+|    608: dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd   ................
+|    624: dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd   ................
+|    640: dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd   ................
+|    656: dd dd dd dd dd dd dd da dd dd dd dd dd dd dd dd   ................
+|    672: dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd   ................
+|    688: dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd   ................
+|    704: dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd   ................
+|    720: dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd   ................
+|    736: dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd   ................
+|    752: dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd   ................
+|    768: dd dd dd dd dd dd dd dd dd dd dd dd dd 29 29 29   .............)))
+|    784: 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29   ))))))))))))))))
+|    800: 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29   ))))))))))))))))
+|    816: 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29   ))))))))))))))))
+|    832: 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29   ))))))))))))))))
+|    848: 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29   ))))))))))))))))
+|    864: 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29   ))))))))))))))))
+|    880: 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29   ))))))))))))))))
+|    896: 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29   ))))))))))))))))
+|    912: 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29   ))))))))))))))))
+|    928: 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29   ))))))))))))))))
+|    944: 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29   ))))))))))))))))
+|    960: 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29   ))))))))))))))))
+|    976: 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29   ))))))))))))))))
+|    992: 29 29 29 29 29 29 29 29 29 29 dd dd dd dd dd dd   ))))))))))......
+|   1008: dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd   ................
+| page 2 offset 1024
+|      0: dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd   ................
+|     16: dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd   ................
+|     32: dd dd 6e 69 d2 e9 e9 e9 d2 d2 d2 d2 d2 dd dd dd   ..ni............
+|     48: dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd   ................
+|     64: dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd   ................
+|     80: dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd   ................
+|     96: dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd   ................
+|    112: dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd   ................
+|    128: dd dd dd dd dd dd 29 29 29 29 29 29 29 29 29 29   ......))))))))))
+|    144: 29 29 29 29 29 29 29 29 29 ad a5 29 29 29 29 00   )))))))))..)))).
+|    160: 75 9c 11 00 5b e5 64 28 7c ca 09 69 28 2d 69 00   u...[.d(|..i(-i.
+|    176: 85 88 6c 81 48 83 a0 93 c0 c0 82 8b 81 84 85 f9   ..l.H...........
+|    192: 88 7a 00 7f 00 96 40 7b 12 4b 84 75 a0 00 99 a0   .z....@..K.u....
+|    208: df a0 7e 81 c6 90 8f 7f 84 85 cc 84 82 90 88 60   ..~............`
+|    224: 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80   ................
+|    240: 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80   ................
+|    256: 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80   ................
+|    272: 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80   ................
+|    288: 80 80 80 80 80 80 80 80 80 80 80 80 80 80 02 02   ................
+|    304: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    320: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    336: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
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+|    400: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    416: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    432: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    448: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    464: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    480: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    496: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    512: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    528: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
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+|    576: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    592: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    608: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    624: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    640: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    656: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    672: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    688: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
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+|    720: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    736: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    752: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    768: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    784: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    800: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    816: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    832: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    848: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    864: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    880: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    896: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    912: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    928: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    944: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    960: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    976: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    992: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|   1008: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+| page 3 offset 2048
+|      0: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|     16: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|     32: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|     48: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|     64: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|     80: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|     96: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    112: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    128: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    144: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    160: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
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+|    208: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
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+|    304: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    320: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
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+|    400: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
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+|    432: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    448: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    464: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    480: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    496: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    512: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    528: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    544: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    560: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    576: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    592: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    608: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    624: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    640: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    656: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    672: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    688: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    704: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    720: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
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+|    800: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    816: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    832: 02 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80   ................
+|    848: 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80   ................
+|    864: 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80   ................
+|    880: 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80   ................
+|    896: 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80   ................
+|    912: 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80   ................
+|    928: 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80   ................
+|    944: 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80   ................
+|    960: 80 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    976: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    992: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|   1008: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+| page 4 offset 3072
+|      0: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|     16: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|     32: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|     48: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
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+|    112: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    128: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    144: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    160: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    176: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    192: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    208: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    224: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    240: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    256: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    272: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    288: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    304: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    320: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    336: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    352: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    368: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    384: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    400: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    416: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    432: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    448: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    464: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    480: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    496: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    512: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    528: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    544: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    560: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    576: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    592: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    608: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    624: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    640: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    656: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    672: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    688: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    704: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    720: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    736: 5f 5f 5f 5f 5f 5f 5f 00 d5 fe fe fe 08 00 00 00   _______.........
+| end clusterfuzz-testcase-sql_recovery_fuzzer-5803962339885056
+}]} {}
+
+sqlite3_dbdata_init db
+do_execsql_test 1.1 {
+  PRAGMA writable_schema = 1;
+}
+
+do_test 1.2 {
+  set R [sqlite3_recover_init db main test.db2]
+  $R run
+  $R finish
+} {}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 2.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 3821 pagesize 1024 filename clusterfuzz-testcase-sql_recovery_fuzzer-5803962339885056
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 04 00 01 01 00 40 20 20 00 00 00 01 00 00 00 02   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01   ................
+|     96: 00 2e 7a 70 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    112: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    128: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    144: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    160: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    176: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    192: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    208: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    224: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    240: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    256: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    272: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    288: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    304: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    320: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    336: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    352: 02 02 02 02 a0 02 02 02 02 02 02 02 02 02 02 02   ................
+|    368: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    384: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    400: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    416: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    432: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    448: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 29 29   ..............))
+|    464: 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29   ))))))))))))))))
+|    480: 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29   ))))))))))))))))
+|    496: 29 29 29 dd dd dd dd dd dd dd dd dd dd dd dd dd   ))).............
+|    512: dd dd dd dd dd dd dd dd dd 6e 69 d2 e9 e9 e9 d2   .........ni.....
+|    528: d2 d2 d2 d2 dd dd dd dd dd dd dd dd dd dd dd dd   ................
+|    544: dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd   ................
+|    560: dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd   ................
+|    576: dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd   ................
+|    592: dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd   ................
+|    608: dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd   ................
+|    624: dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd   ................
+|    640: dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd   ................
+|    656: dd dd dd dd dd dd dd da dd dd dd dd dd dd dd dd   ................
+|    672: dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd   ................
+|    688: dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd   ................
+|    704: dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd   ................
+|    720: dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd   ................
+|    736: dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd   ................
+|    752: dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd   ................
+|    768: dd dd dd dd dd dd dd dd dd dd dd dd dd 29 29 29   .............)))
+|    784: 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29   ))))))))))))))))
+|    800: 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29   ))))))))))))))))
+|    816: 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29   ))))))))))))))))
+|    832: 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29   ))))))))))))))))
+|    848: 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29   ))))))))))))))))
+|    864: 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29   ))))))))))))))))
+|    880: 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29   ))))))))))))))))
+|    896: 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29   ))))))))))))))))
+|    912: 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29   ))))))))))))))))
+|    928: 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29   ))))))))))))))))
+|    944: 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29   ))))))))))))))))
+|    960: 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29   ))))))))))))))))
+|    976: 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29   ))))))))))))))))
+|    992: 29 29 29 29 29 29 29 29 29 29 dd dd dd dd dd dd   ))))))))))......
+|   1008: dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd   ................
+| page 2 offset 1024
+|      0: dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd   ................
+|     16: dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd   ................
+|     32: dd dd 6e 69 d2 e9 e9 e9 d2 d2 d2 d2 d2 dd dd dd   ..ni............
+|     48: dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd   ................
+|     64: dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd   ................
+|     80: dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd   ................
+|     96: dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd   ................
+|    112: dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd dd   ................
+|    128: dd dd dd dd dd dd 29 29 29 29 29 29 29 29 29 29   ......))))))))))
+|    144: 29 29 29 29 29 29 29 29 29 ad a5 29 29 29 29 00   )))))))))..)))).
+|    160: 75 9c 11 00 5b e5 64 28 7c ca 09 69 28 2d 69 00   u...[.d(|..i(-i.
+|    176: 85 88 6c 81 48 83 a0 93 c0 c0 82 8b 81 84 85 f9   ..l.H...........
+|    192: 88 7a 00 7f 00 96 40 7b 12 4b 84 75 a0 00 99 a0   .z....@..K.u....
+|    208: df a0 7e 81 c6 90 8f 7f 84 85 cc 84 82 90 88 60   ..~............`
+|    224: 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80   ................
+|    240: 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80   ................
+|    256: 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80   ................
+|    272: 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80   ................
+|    288: 80 80 80 80 80 80 80 80 80 80 80 80 80 80 02 02   ................
+|    304: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    320: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    336: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    352: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    368: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    384: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    400: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    416: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    432: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    448: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    464: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    480: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    496: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    512: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    528: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    544: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    560: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    576: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    592: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    608: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    624: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    640: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    656: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    672: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    688: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    704: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    720: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    736: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    752: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    768: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    784: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    800: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    816: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    832: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    848: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    864: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    880: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    896: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    912: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    928: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    944: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    960: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    976: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    992: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|   1008: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+| page 3 offset 2048
+|      0: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|     16: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|     32: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|     48: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|     64: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|     80: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|     96: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    112: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    128: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    144: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    160: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    176: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    192: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    208: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    224: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    240: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    256: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    272: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    288: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    304: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    320: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    336: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    352: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    368: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    384: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    400: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    416: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    432: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    448: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    464: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    480: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    496: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    512: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    528: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    544: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    560: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    576: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    592: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    608: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    624: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    640: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    656: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    672: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    688: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    704: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    720: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    736: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    752: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    768: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    784: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    800: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    816: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    832: 02 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80   ................
+|    848: 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80   ................
+|    864: 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80   ................
+|    880: 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80   ................
+|    896: 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80   ................
+|    912: 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80   ................
+|    928: 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80   ................
+|    944: 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80   ................
+|    960: 80 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    976: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    992: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|   1008: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+| page 4 offset 3072
+|      0: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|     16: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|     32: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|     48: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|     64: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|     80: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|     96: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    112: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    128: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    144: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    160: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    176: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    192: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    208: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    224: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    240: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    256: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    272: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    288: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    304: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    320: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    336: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    352: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    368: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    384: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    400: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    416: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    432: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    448: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    464: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    480: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    496: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    512: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    528: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    544: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    560: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    576: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    592: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    608: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    624: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    640: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    656: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    672: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    688: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    704: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    720: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02   ................
+|    736: 5f 5f 5f 5f 5f 5f 5f 00 d5 fe fe fe 08 00 00 00   _______.........
+| end clusterfuzz-testcase-sql_recovery_fuzzer-5803962339885056
+}]} {}
+
+sqlite3_dbdata_init db
+do_execsql_test 2.1 {
+  PRAGMA writable_schema = 1;
+}
+
+do_test 2.2 {
+  set R [sqlite3_recover_init db main test.db2]
+  $R run
+  $R finish
+} {}
+
+finish_test
+
diff --git a/ext/recover/recovercorrupt4.test b/ext/recover/recovercorrupt4.test
new file mode 100644
index 0000000000000000000000000000000000000000..25cfb88fa33a9e9d556cf36ef9b977659d069bf0
--- /dev/null
+++ b/ext/recover/recovercorrupt4.test
@@ -0,0 +1,63 @@
+# 2024 May 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname [info script]] recover_common.tcl]
+set testprefix recovercorrupt4
+
+database_may_be_corrupt
+
+if {[permutation]!="inmemory_journal"} {
+  # This test cannot be run with the inmemory_journal permutation, as it
+  # must open a truncated, corrupt, database file. With the inmemory_journal
+  # permutation, this fails (SQLITE_CORRUPT error) when the [sqlite3] wrapper
+  # executes "PRAGMA journal_mode = memory".
+  do_execsql_test 1.0 {
+    CREATE TABLE rows(indexed INTEGER NOT NULL, unindexed INTEGER NOT NULL, filler BLOB NOT NULL DEFAULT 13);
+    -- CREATE UNIQUE INDEX rows_index ON rows(indexed);
+    INSERT INTO rows(indexed, unindexed, filler) VALUES(1, 1, x'31');
+    INSERT INTO rows(indexed, unindexed, filler) VALUES(2, 2, x'32');
+    INSERT INTO rows(indexed, unindexed, filler) VALUES(4, 4, x'34');
+    INSERT INTO rows(indexed, unindexed, filler) VALUES(8, 8, randomblob(2048));
+  }
+  
+  db close
+  
+  do_test 1.1 {
+    set sz [expr [file size test.db] - 1024]
+    set fd [open test.db]
+    fconfigure $fd -translation binary
+  
+    set data [read $fd $sz]
+    set fd2 [open test.db2 w]
+    fconfigure $fd2 -translation binary
+    puts -nonewline $fd2 $data
+    close $fd2
+    set {} {}
+  } {}
+  
+  do_test 1.2 {
+    forcedelete test.db3
+    sqlite3 db test.db2
+    set R [sqlite3_recover_init db main test.db3]
+    $R run
+    $R finish
+  } {}
+  
+  do_test 1.3 {
+    sqlite3 db test.db3
+    execsql {
+      SELECT indexed, unindexed FROM rows
+    }
+  } {1 1 2 2 4 4 8 8}
+}
+
+finish_test
diff --git a/ext/recover/recoverfault.test b/ext/recover/recoverfault.test
new file mode 100644
index 0000000000000000000000000000000000000000..30bb65527d708992ba6fd89ff93994365290cdea
--- /dev/null
+++ b/ext/recover/recoverfault.test
@@ -0,0 +1,84 @@
+# 2022 August 28
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname [info script]] recover_common.tcl]
+set testprefix recoverfault
+
+
+#--------------------------------------------------------------------------
+proc compare_result {db1 db2 sql} {
+  set r1 [$db1 eval $sql]
+  set r2 [$db2 eval $sql]
+  if {$r1 != $r2} {
+    puts "r1: $r1"
+    puts "r2: $r2"
+    error "mismatch for $sql"
+  }
+  return ""
+}
+
+proc compare_dbs {db1 db2} {
+  compare_result $db1 $db2 "SELECT sql FROM sqlite_master ORDER BY 1"
+  foreach tbl [$db1 eval {SELECT name FROM sqlite_master WHERE type='table'}] {
+    compare_result $db1 $db2 "SELECT * FROM $tbl"
+  }
+}
+#--------------------------------------------------------------------------
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+  INSERT INTO t1 VALUES(1, 2, 3);
+  INSERT INTO t1 VALUES(2, hex(randomblob(1000)), randomblob(2000));
+  CREATE INDEX i1 ON t1(b, c);
+  ANALYZE;
+}
+faultsim_save_and_close
+
+do_faultsim_test 1 -faults oom* -prep {
+  catch { db2 close }
+  faultsim_restore_and_reopen
+} -body {
+  set R [sqlite3_recover_init db main test.db2]
+  $R run
+  $R finish
+} -test {
+  faultsim_test_result {0 {}} {1 {}}
+  if {$testrc==0} {
+    sqlite3 db2 test.db2
+    compare_dbs db db2
+    db2 close
+  }
+}
+
+faultsim_restore_and_reopen 
+do_execsql_test 2.0 {
+  CREATE TABLE t2(a INTEGER PRIMARY KEY, b, c);
+  INSERT INTO t2 VALUES(1, 2, 3);
+  INSERT INTO t2 VALUES(2, hex(randomblob(1000)), hex(randomblob(2000)));
+  PRAGMA writable_schema = 1;
+  DELETE FROM sqlite_schema WHERE name='t2';
+}
+faultsim_save_and_close
+
+do_faultsim_test 2 -faults oom* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  set R [sqlite3_recover_init db main test.db2]
+  $R config lostandfound lost_and_found
+  $R run
+  $R finish
+} -test {
+  faultsim_test_result {0 {}} {1 {}}
+}
+
+finish_test
+
diff --git a/ext/recover/recoverfault2.test b/ext/recover/recoverfault2.test
new file mode 100644
index 0000000000000000000000000000000000000000..e80d480ce109d8c6c71f87f2a2c7fafb312764e2
--- /dev/null
+++ b/ext/recover/recoverfault2.test
@@ -0,0 +1,102 @@
+# 2022 August 28
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname [info script]] recover_common.tcl]
+set testprefix recoverfault2
+
+
+#--------------------------------------------------------------------------
+proc compare_result {db1 db2 sql} {
+  set r1 [$db1 eval $sql]
+  set r2 [$db2 eval $sql]
+  if {$r1 != $r2} {
+    puts "r1: $r1"
+    puts "r2: $r2"
+    error "mismatch for $sql"
+  }
+  return ""
+}
+
+proc compare_dbs {db1 db2} {
+  compare_result $db1 $db2 "SELECT sql FROM sqlite_master ORDER BY 1"
+  foreach tbl [$db1 eval {SELECT name FROM sqlite_master WHERE type='table'}] {
+    compare_result $db1 $db2 "SELECT * FROM $tbl"
+  }
+}
+#--------------------------------------------------------------------------
+
+do_execsql_test 1.0 "
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+  INSERT INTO t1 VALUES(2, '\012hello\015world\012today\n');
+"
+faultsim_save_and_close
+
+proc my_sql_hook {sql} {
+  lappend ::lSql $sql
+  return 0
+}
+
+do_faultsim_test 1 -faults oom* -prep {
+  catch { db2 close }
+  faultsim_restore_and_reopen
+  set ::lSql [list]
+} -body {
+  set R [sqlite3_recover_init_sql db main my_sql_hook]
+  $R run
+  $R finish
+} -test {
+  faultsim_test_result {0 {}} {1 {}}
+  if {$testrc==0} {
+    sqlite3 db2 ""
+    db2 eval [join $::lSql ";"]
+    compare_dbs db db2
+    db2 close
+  }
+}
+
+ifcapable utf16 {
+  reset_db
+  do_execsql_test 2.0 "
+    PRAGMA encoding='utf-16';
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+    INSERT INTO t1 VALUES(2, '\012hello\015world\012today\n');
+  "
+  faultsim_save_and_close
+  
+  proc my_sql_hook {sql} {
+    lappend ::lSql $sql
+    return 0
+  }
+  
+  do_faultsim_test 2 -faults oom-t* -prep {
+    catch { db2 close }
+    faultsim_restore_and_reopen
+    set ::lSql [list]
+  } -body {
+    set R [sqlite3_recover_init_sql db main my_sql_hook]
+    $R run
+    $R finish
+  } -test {
+    faultsim_test_result {0 {}} {1 {}}
+    if {$testrc==0} {
+      sqlite3 db2 ""
+      db2 eval [join $::lSql ";"]
+      compare_dbs db db2
+      db2 close
+    }
+  }
+}
+
+
+
+finish_test
+
diff --git a/ext/recover/recoverold.test b/ext/recover/recoverold.test
new file mode 100644
index 0000000000000000000000000000000000000000..c6acbb2f42771c61a1e550b8d27918de9c8a5846
--- /dev/null
+++ b/ext/recover/recoverold.test
@@ -0,0 +1,189 @@
+# 2019 April 23
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+#
+
+source [file join [file dirname [info script]] recover_common.tcl]
+set testprefix recoverold
+
+proc compare_result {db1 db2 sql} {
+  set r1 [$db1 eval $sql]
+  set r2 [$db2 eval $sql]
+  if {$r1 != $r2} {
+  puts "sql: $sql"
+  puts "r1: $r1"
+  puts "r2: $r2"
+    error "mismatch for $sql"
+  }
+  return ""
+}
+
+proc compare_dbs {db1 db2} {
+  compare_result $db1 $db2 "SELECT sql FROM sqlite_master ORDER BY 1"
+  foreach tbl [$db1 eval {SELECT name FROM sqlite_master WHERE type='table'}] {
+    compare_result $db1 $db2 "SELECT * FROM $tbl"
+  }
+}
+
+proc do_recover_test {tn {tsql {}} {res {}}} {
+  forcedelete test.db2
+  forcedelete rstate.db
+
+  set R [sqlite3_recover_init db main test.db2]
+  $R config lostandfound lost_and_found
+  $R run
+  $R finish
+  
+  sqlite3 db2 test.db2
+
+  if {$tsql==""} {
+    uplevel [list do_test $tn.1 [list compare_dbs db db2] {}]
+  } else {
+    uplevel [list do_execsql_test -db db2 $tn.1 $tsql $res]
+  }
+  db2 close
+
+  forcedelete test.db2
+  forcedelete rstate.db
+
+  set ::sqlhook [list]
+  set R [sqlite3_recover_init_sql db main my_sql_hook]
+  $R config lostandfound lost_and_found
+  $R run
+  $R finish
+  
+  sqlite3 db2 test.db2
+  db2 eval [join $::sqlhook ";"]
+
+
+  db cache flush
+  if {$tsql==""} {
+  compare_dbs db db2
+    uplevel [list do_test $tn.sql [list compare_dbs db db2] {}]
+  } else {
+    uplevel [list do_execsql_test -db db2 $tn.sql $tsql $res]
+  }
+  db2 close
+}
+
+proc my_sql_hook {sql} {
+  lappend ::sqlhook $sql
+  return 0
+}
+
+
+set doc {
+  hello
+  world
+}
+do_execsql_test 1.1.1 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+  INSERT INTO t1 VALUES(1, 4, X'1234567800');
+  INSERT INTO t1 VALUES(2, 'test', 8.1);
+  INSERT INTO t1 VALUES(3, $doc, 8.4);
+}
+do_recover_test 1.1.2
+
+do_execsql_test 1.2.1 "
+  DELETE FROM t1;
+  INSERT INTO t1 VALUES(13, 'hello\r\nworld', 13);
+"
+do_recover_test 1.2.2
+
+do_execsql_test 1.3.1 "
+  CREATE TABLE t2(i INTEGER PRIMARY KEY AUTOINCREMENT, b, c);
+  INSERT INTO t2 VALUES(NULL, 1, 2);
+  INSERT INTO t2 VALUES(NULL, 3, 4);
+  INSERT INTO t2 VALUES(NULL, 5, 6);
+  CREATE TABLE t3(i INTEGER PRIMARY KEY AUTOINCREMENT, b, c);
+  INSERT INTO t3 VALUES(NULL, 1, 2);
+  INSERT INTO t3 VALUES(NULL, 3, 4);
+  INSERT INTO t3 VALUES(NULL, 5, 6);
+  DELETE FROM t2;
+"
+do_recover_test 1.3.2
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 2.1.0 {
+  PRAGMA auto_vacuum = 0;
+  CREATE TABLE t1(a, b, c, PRIMARY KEY(b, c)) WITHOUT ROWID;
+  INSERT INTO t1 VALUES(1, 2, 3);
+  INSERT INTO t1 VALUES(4, 5, 6);
+  INSERT INTO t1 VALUES(7, 8, 9);
+}
+
+do_recover_test 2.1.1
+
+do_execsql_test 2.2.0 {
+  PRAGMA writable_schema = 1;
+  DELETE FROM sqlite_master WHERE name='t1';
+}
+do_recover_test 2.2.1 {
+  SELECT name FROM sqlite_master
+} {lost_and_found}
+
+do_execsql_test 2.3.0 {
+  CREATE TABLE lost_and_found(a, b, c);
+}
+do_recover_test 2.3.1 {
+  SELECT name FROM sqlite_master
+} {lost_and_found lost_and_found_0}
+
+do_execsql_test 2.4.0 {
+  CREATE TABLE lost_and_found_0(a, b, c);
+}
+do_recover_test 2.4.1 {
+  SELECT name FROM sqlite_master;
+  SELECT * FROM lost_and_found_1;
+} {lost_and_found lost_and_found_0 lost_and_found_1
+  2 2 3 {} 2 3 1
+  2 2 3 {} 5 6 4
+  2 2 3 {} 8 9 7
+}
+
+do_execsql_test 2.5 {
+  CREATE TABLE x1(a, b, c);
+  WITH s(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<100
+  )
+  INSERT INTO x1 SELECT i, i, hex(randomblob(500)) FROM s;
+  DROP TABLE x1;
+}
+do_recover_test 2.5.1 {
+  SELECT name FROM sqlite_master;
+  SELECT * FROM lost_and_found_1;
+} {lost_and_found lost_and_found_0 lost_and_found_1
+  2 2 3 {} 2 3 1
+  2 2 3 {} 5 6 4
+  2 2 3 {} 8 9 7
+}
+
+ifcapable !secure_delete {
+  do_test 2.6 {
+    forcedelete test.db2
+    set R [sqlite3_recover_init db main test.db2]
+    $R config lostandfound lost_and_found
+    $R config freelistcorrupt 1
+    $R run
+    $R finish
+    sqlite3 db2 test.db2
+    execsql { SELECT count(*) FROM lost_and_found_1; } db2
+  } {103}
+  db2 close
+}
+
+#-------------------------------------------------------------------------
+breakpoint
+reset_db
+do_recover_test 3.0
+
+finish_test
diff --git a/ext/recover/recoverpgsz.test b/ext/recover/recoverpgsz.test
new file mode 100644
index 0000000000000000000000000000000000000000..f921a7869254edd1d643aca0441825c883777d50
--- /dev/null
+++ b/ext/recover/recoverpgsz.test
@@ -0,0 +1,97 @@
+# 2022 October 14
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname [info script]] recover_common.tcl]
+
+db close
+sqlite3_test_control_pending_byte 0x1000000
+
+set testprefix recoverpgsz
+
+foreach {pgsz bOverflow} {
+  512 0 1024 0 2048 0 4096 0 8192 0 16384 0 32768 0 65536 0
+  512 1 1024 1 2048 1 4096 1 8192 1 16384 1 32768 1 65536 1
+} {
+  reset_db
+  execsql "PRAGMA page_size = $pgsz"
+  execsql "PRAGMA auto_vacuum = 0"
+  do_execsql_test 1.$pgsz.$bOverflow.1 {
+    CREATE TABLE t1(a, b, c);
+    CREATE INDEX i1 ON t1(b, a, c);
+    INSERT INTO t1(a, b) VALUES(1, 2), (3, 4), (5, 6);
+    DELETE FROM t1 WHERE a=3;
+  }
+  if {$bOverflow} {
+    do_execsql_test 1.$pgsz.$bOverflow.1a {
+      UPDATE t1 SET c = randomblob(100000);
+    }
+  }
+  db close
+
+
+  set fd [open test.db]
+  fconfigure $fd -translation binary
+  seek $fd $pgsz
+  set pg1 [read $fd $pgsz]
+  set pg2 [read $fd $pgsz]
+  close $fd
+
+  set fd2 [open test.db2 w]
+  fconfigure $fd2 -translation binary
+  seek $fd2 $pgsz
+  puts -nonewline $fd2 $pg1
+  close $fd2
+
+  sqlite3 db2 test.db2
+  do_test 1.$pgsz.$bOverflow.2 {
+    set R [sqlite3_recover_init db2 main test.db3]
+    $R run
+    $R finish
+  } {}
+
+  sqlite3 db3 test.db3
+  do_test 1.$pgsz.$bOverflow.3 {
+    db3 eval { SELECT * FROM sqlite_schema }
+    db3 eval { PRAGMA page_size } 
+  } $pgsz
+
+  db2 close
+  db3 close
+
+  forcedelete test.db3
+  forcedelete test.db2
+
+  set fd2 [open test.db2 w]
+  fconfigure $fd2 -translation binary
+  seek $fd2 $pgsz
+  puts -nonewline $fd2 $pg2
+  close $fd2
+
+  sqlite3 db2 test.db2
+  do_test 1.$pgsz.$bOverflow.4 {
+    set R [sqlite3_recover_init db2 main test.db3]
+    $R run
+    $R finish
+  } {}
+
+  sqlite3 db3 test.db3
+  do_test 1.$pgsz.$bOverflow.5 {
+    db3 eval { SELECT * FROM sqlite_schema }
+    db3 eval { PRAGMA page_size } 
+  } $pgsz
+
+  db2 close
+  db3 close
+}
+
+
+finish_test
diff --git a/ext/recover/recoverrowid.test b/ext/recover/recoverrowid.test
new file mode 100644
index 0000000000000000000000000000000000000000..5855e84fa65055bd4988bf55a607acdd994582f1
--- /dev/null
+++ b/ext/recover/recoverrowid.test
@@ -0,0 +1,50 @@
+# 2022 September 07
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+# Tests for the SQLITE_RECOVER_ROWIDS option.
+#
+
+source [file join [file dirname [info script]] recover_common.tcl]
+set testprefix recoverrowid
+
+proc recover {db bRowids output} {
+  forcedelete $output
+
+  set R [sqlite3_recover_init db main test.db2]
+  $R config rowids $bRowids
+  $R run
+  $R finish
+}
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b);
+  INSERT INTO t1 VALUES(1, 1), (2, 2), (3, 3), (4, 4);
+  DELETE FROM t1 WHERE a IN (1, 3);
+}
+
+do_test 1.1 {
+  recover db 0 test.db2
+  sqlite3 db2 test.db2
+  execsql { SELECT rowid, a, b FROM t1 ORDER BY rowid} db2
+} {1 2 2 2 4 4}
+
+do_test 1.2 {
+  db2 close
+  recover db 1 test.db2
+  sqlite3 db2 test.db2
+  execsql { SELECT rowid, a, b FROM t1 ORDER BY rowid} db2
+} {2 2 2 4 4 4}
+db2 close
+
+
+
+
+finish_test
diff --git a/ext/recover/recoverslowidx.test b/ext/recover/recoverslowidx.test
new file mode 100644
index 0000000000000000000000000000000000000000..269105113dd6bf87d05dd9d54497843f0890e857
--- /dev/null
+++ b/ext/recover/recoverslowidx.test
@@ -0,0 +1,87 @@
+# 2022 September 25
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+# Tests for the SQLITE_RECOVER_SLOWINDEXES option.
+#
+
+source [file join [file dirname [info script]] recover_common.tcl]
+set testprefix recoverslowidx
+
+do_execsql_test 1.0 {
+  PRAGMA auto_vacuum = 0;
+  CREATE TABLE t1(a, b);
+  CREATE INDEX i1 ON t1(a);
+  INSERT INTO t1 VALUES(1, 1), (2, 2), (3, 3), (4, 4);
+}
+
+proc my_sql_hook {sql} {
+  lappend ::lSql $sql
+  return 0
+}
+
+do_test 1.1 {
+  set lSql [list]
+  set R [sqlite3_recover_init_sql db main my_sql_hook]
+  while {[$R step]==0} { }
+  $R finish
+} {}
+
+do_test 1.2 {
+  set lSql
+} [list {*}{
+  {BEGIN}
+  {PRAGMA writable_schema = on}
+  {PRAGMA encoding = 'UTF-8'}
+  {PRAGMA page_size = '1024'}
+  {PRAGMA auto_vacuum = '0'}
+  {PRAGMA user_version = '0'}
+  {PRAGMA application_id = '0'}
+  {CREATE TABLE t1(a, b)}
+  {INSERT OR IGNORE INTO 't1'(_rowid_, 'a', 'b') VALUES (1, 1, 1)}
+  {INSERT OR IGNORE INTO 't1'(_rowid_, 'a', 'b') VALUES (2, 2, 2)}
+  {INSERT OR IGNORE INTO 't1'(_rowid_, 'a', 'b') VALUES (3, 3, 3)}
+  {INSERT OR IGNORE INTO 't1'(_rowid_, 'a', 'b') VALUES (4, 4, 4)}
+  {CREATE INDEX i1 ON t1(a)}
+  {PRAGMA writable_schema = off}
+  {COMMIT}
+}]
+
+do_test 1.3 {
+  set lSql [list]
+  set R [sqlite3_recover_init_sql db main my_sql_hook]
+  $R config slowindexes 1
+  while {[$R step]==0} { }
+  $R finish
+} {}
+
+do_test 1.4 {
+  set lSql
+} [list {*}{
+  {BEGIN}
+  {PRAGMA writable_schema = on}
+  {PRAGMA encoding = 'UTF-8'}
+  {PRAGMA page_size = '1024'}
+  {PRAGMA auto_vacuum = '0'}
+  {PRAGMA user_version = '0'}
+  {PRAGMA application_id = '0'}
+  {CREATE TABLE t1(a, b)}
+  {CREATE INDEX i1 ON t1(a)}
+  {INSERT OR IGNORE INTO 't1'(_rowid_, 'a', 'b') VALUES (1, 1, 1)}
+  {INSERT OR IGNORE INTO 't1'(_rowid_, 'a', 'b') VALUES (2, 2, 2)}
+  {INSERT OR IGNORE INTO 't1'(_rowid_, 'a', 'b') VALUES (3, 3, 3)}
+  {INSERT OR IGNORE INTO 't1'(_rowid_, 'a', 'b') VALUES (4, 4, 4)}
+  {PRAGMA writable_schema = off}
+  {COMMIT}
+}]
+
+
+finish_test
+
diff --git a/ext/recover/recoversql.test b/ext/recover/recoversql.test
new file mode 100644
index 0000000000000000000000000000000000000000..0a6726727da7f74e61b1f7bfba58999276b2b520
--- /dev/null
+++ b/ext/recover/recoversql.test
@@ -0,0 +1,52 @@
+# 2022 September 13
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+#
+
+source [file join [file dirname [info script]] recover_common.tcl]
+set testprefix recoversql
+
+do_execsql_test 1.0 {
+  CREATE TABLE "x.1" (x, y);
+  INSERT INTO "x.1" VALUES(1, 1), (2, 2), (3, 3);
+  CREATE INDEX "i.1" ON "x.1"(y, x);
+}
+
+proc sql_hook {sql} {
+  incr ::iSqlHook
+  if {$::iSqlHook==$::sql_hook_cnt} { return 4 }
+  return 0
+}
+
+do_test 1.1 {
+  set ::sql_hook_cnt -1
+  set ::iSqlHook 0
+  set R [sqlite3_recover_init_sql db main sql_hook]
+  $R run
+  $R finish
+} {}
+
+set nSqlCall $iSqlHook
+
+for {set ii 1} {$ii<$nSqlCall} {incr ii} {
+  set iSqlHook 0
+  set sql_hook_cnt $ii
+  do_test 1.$ii.a {
+    set R [sqlite3_recover_init_sql db main sql_hook]
+    $R run
+  } {1}
+  do_test 1.$ii.b {
+    list [catch { $R finish } msg] $msg
+  } {1 {callback returned an error - 4}}
+}
+
+
+finish_test
diff --git a/ext/recover/sqlite3recover.c b/ext/recover/sqlite3recover.c
new file mode 100644
index 0000000000000000000000000000000000000000..58d726f599c9bd953395f4d27e85913d17e340e4
--- /dev/null
+++ b/ext/recover/sqlite3recover.c
@@ -0,0 +1,2872 @@
+/*
+** 2022-08-27
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+*/
+
+
+#include "sqlite3recover.h"
+#include <assert.h>
+#include <string.h>
+
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+
+/*
+** Declaration for public API function in file dbdata.c. This may be called
+** with NULL as the final two arguments to register the sqlite_dbptr and
+** sqlite_dbdata virtual tables with a database handle.
+*/
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_dbdata_init(sqlite3*, char**, const sqlite3_api_routines*);
+
+typedef unsigned int u32;
+typedef unsigned char u8;
+typedef sqlite3_int64 i64;
+
+typedef struct RecoverTable RecoverTable;
+typedef struct RecoverColumn RecoverColumn;
+
+/*
+** When recovering rows of data that can be associated with table
+** definitions recovered from the sqlite_schema table, each table is
+** represented by an instance of the following object.
+**
+** iRoot:
+**   The root page in the original database. Not necessarily (and usually
+**   not) the same in the recovered database.
+**
+** zTab:
+**   Name of the table.
+**
+** nCol/aCol[]:
+**   aCol[] is an array of nCol columns. In the order in which they appear 
+**   in the table.
+**
+** bIntkey:
+**   Set to true for intkey tables, false for WITHOUT ROWID.
+**
+** iRowidBind:
+**   Each column in the aCol[] array has associated with it the index of
+**   the bind parameter its values will be bound to in the INSERT statement
+**   used to construct the output database. If the table does has a rowid
+**   but not an INTEGER PRIMARY KEY column, then iRowidBind contains the
+**   index of the bind paramater to which the rowid value should be bound.
+**   Otherwise, it contains -1. If the table does contain an INTEGER PRIMARY 
+**   KEY column, then the rowid value should be bound to the index associated
+**   with the column.
+**
+** pNext:
+**   All RecoverTable objects used by the recovery operation are allocated
+**   and populated as part of creating the recovered database schema in
+**   the output database, before any non-schema data are recovered. They
+**   are then stored in a singly-linked list linked by this variable beginning
+**   at sqlite3_recover.pTblList.
+*/
+struct RecoverTable {
+  u32 iRoot;                      /* Root page in original database */
+  char *zTab;                     /* Name of table */
+  int nCol;                       /* Number of columns in table */
+  RecoverColumn *aCol;            /* Array of columns */
+  int bIntkey;                    /* True for intkey, false for without rowid */
+  int iRowidBind;                 /* If >0, bind rowid to INSERT here */
+  RecoverTable *pNext;
+};
+
+/*
+** Each database column is represented by an instance of the following object
+** stored in the RecoverTable.aCol[] array of the associated table.
+**
+** iField:
+**   The index of the associated field within database records. Or -1 if
+**   there is no associated field (e.g. for virtual generated columns).
+**
+** iBind:
+**   The bind index of the INSERT statement to bind this columns values
+**   to. Or 0 if there is no such index (iff (iField<0)).
+**
+** bIPK:
+**   True if this is the INTEGER PRIMARY KEY column.
+**
+** zCol:
+**   Name of column.
+**
+** eHidden:
+**   A RECOVER_EHIDDEN_* constant value (see below for interpretation of each).
+*/
+struct RecoverColumn {
+  int iField;                     /* Field in record on disk */
+  int iBind;                      /* Binding to use in INSERT */
+  int bIPK;                       /* True for IPK column */
+  char *zCol;
+  int eHidden;
+};
+
+#define RECOVER_EHIDDEN_NONE    0      /* Normal database column */
+#define RECOVER_EHIDDEN_HIDDEN  1      /* Column is __HIDDEN__ */
+#define RECOVER_EHIDDEN_VIRTUAL 2      /* Virtual generated column */
+#define RECOVER_EHIDDEN_STORED  3      /* Stored generated column */
+
+/*
+** Bitmap object used to track pages in the input database. Allocated
+** and manipulated only by the following functions:
+**
+**     recoverBitmapAlloc()
+**     recoverBitmapFree()
+**     recoverBitmapSet()
+**     recoverBitmapQuery()
+**
+** nPg:
+**   Largest page number that may be stored in the bitmap. The range
+**   of valid keys is 1 to nPg, inclusive.
+**
+** aElem[]:
+**   Array large enough to contain a bit for each key. For key value
+**   iKey, the associated bit is the bit (iKey%32) of aElem[iKey/32].
+**   In other words, the following is true if bit iKey is set, or 
+**   false if it is clear:
+**
+**       (aElem[iKey/32] & (1 << (iKey%32))) ? 1 : 0
+*/
+typedef struct RecoverBitmap RecoverBitmap;
+struct RecoverBitmap {
+  i64 nPg;                        /* Size of bitmap */
+  u32 aElem[1];                   /* Array of 32-bit bitmasks */
+};
+
+/*
+** State variables (part of the sqlite3_recover structure) used while
+** recovering data for tables identified in the recovered schema (state
+** RECOVER_STATE_WRITING).
+*/
+typedef struct RecoverStateW1 RecoverStateW1;
+struct RecoverStateW1 {
+  sqlite3_stmt *pTbls;
+  sqlite3_stmt *pSel;
+  sqlite3_stmt *pInsert;
+  int nInsert;
+
+  RecoverTable *pTab;             /* Table currently being written */
+  int nMax;                       /* Max column count in any schema table */
+  sqlite3_value **apVal;          /* Array of nMax values */
+  int nVal;                       /* Number of valid entries in apVal[] */
+  int bHaveRowid;
+  i64 iRowid;
+  i64 iPrevPage;
+  int iPrevCell;
+};
+
+/*
+** State variables (part of the sqlite3_recover structure) used while
+** recovering data destined for the lost and found table (states
+** RECOVER_STATE_LOSTANDFOUND[123]).
+*/
+typedef struct RecoverStateLAF RecoverStateLAF;
+struct RecoverStateLAF {
+  RecoverBitmap *pUsed;
+  i64 nPg;                        /* Size of db in pages */
+  sqlite3_stmt *pAllAndParent;
+  sqlite3_stmt *pMapInsert;
+  sqlite3_stmt *pMaxField;
+  sqlite3_stmt *pUsedPages;
+  sqlite3_stmt *pFindRoot;
+  sqlite3_stmt *pInsert;          /* INSERT INTO lost_and_found ... */
+  sqlite3_stmt *pAllPage;
+  sqlite3_stmt *pPageData;
+  sqlite3_value **apVal;
+  int nMaxField;
+};
+
+/*
+** Main recover handle structure.
+*/
+struct sqlite3_recover {
+  /* Copies of sqlite3_recover_init[_sql]() parameters */
+  sqlite3 *dbIn;                  /* Input database */
+  char *zDb;                      /* Name of input db ("main" etc.) */
+  char *zUri;                     /* URI for output database */
+  void *pSqlCtx;                  /* SQL callback context */
+  int (*xSql)(void*,const char*); /* Pointer to SQL callback function */
+
+  /* Values configured by sqlite3_recover_config() */
+  char *zStateDb;                 /* State database to use (or NULL) */
+  char *zLostAndFound;            /* Name of lost-and-found table (or NULL) */
+  int bFreelistCorrupt;           /* SQLITE_RECOVER_FREELIST_CORRUPT setting */
+  int bRecoverRowid;              /* SQLITE_RECOVER_ROWIDS setting */
+  int bSlowIndexes;               /* SQLITE_RECOVER_SLOWINDEXES setting */
+
+  int pgsz;
+  int detected_pgsz;
+  int nReserve;
+  u8 *pPage1Disk;
+  u8 *pPage1Cache;
+
+  /* Error code and error message */
+  int errCode;                    /* For sqlite3_recover_errcode() */
+  char *zErrMsg;                  /* For sqlite3_recover_errmsg() */
+
+  int eState;
+  int bCloseTransaction;
+
+  /* Variables used with eState==RECOVER_STATE_WRITING */
+  RecoverStateW1 w1;
+
+  /* Variables used with states RECOVER_STATE_LOSTANDFOUND[123] */
+  RecoverStateLAF laf;
+
+  /* Fields used within sqlite3_recover_run() */
+  sqlite3 *dbOut;                 /* Output database */
+  sqlite3_stmt *pGetPage;         /* SELECT against input db sqlite_dbdata */
+  RecoverTable *pTblList;         /* List of tables recovered from schema */
+};
+
+/*
+** The various states in which an sqlite3_recover object may exist:
+**
+**   RECOVER_STATE_INIT:
+**    The object is initially created in this state. sqlite3_recover_step()
+**    has yet to be called. This is the only state in which it is permitted
+**    to call sqlite3_recover_config().
+**
+**   RECOVER_STATE_WRITING:
+**
+**   RECOVER_STATE_LOSTANDFOUND1:
+**    State to populate the bitmap of pages used by other tables or the
+**    database freelist.
+**
+**   RECOVER_STATE_LOSTANDFOUND2:
+**    Populate the recovery.map table - used to figure out a "root" page
+**    for each lost page from in the database from which records are
+**    extracted.
+**
+**   RECOVER_STATE_LOSTANDFOUND3:
+**    Populate the lost-and-found table itself.
+*/
+#define RECOVER_STATE_INIT           0
+#define RECOVER_STATE_WRITING        1
+#define RECOVER_STATE_LOSTANDFOUND1  2
+#define RECOVER_STATE_LOSTANDFOUND2  3
+#define RECOVER_STATE_LOSTANDFOUND3  4
+#define RECOVER_STATE_SCHEMA2        5
+#define RECOVER_STATE_DONE           6
+
+
+/*
+** Global variables used by this extension.
+*/
+typedef struct RecoverGlobal RecoverGlobal;
+struct RecoverGlobal {
+  const sqlite3_io_methods *pMethods;
+  sqlite3_recover *p;
+};
+static RecoverGlobal recover_g;
+
+/*
+** Use this static SQLite mutex to protect the globals during the
+** first call to sqlite3_recover_step().
+*/ 
+#define RECOVER_MUTEX_ID SQLITE_MUTEX_STATIC_APP2
+
+
+/* 
+** Default value for SQLITE_RECOVER_ROWIDS (sqlite3_recover.bRecoverRowid).
+*/
+#define RECOVER_ROWID_DEFAULT 1
+
+/*
+** Mutex handling:
+**
+**    recoverEnterMutex()       -   Enter the recovery mutex
+**    recoverLeaveMutex()       -   Leave the recovery mutex
+**    recoverAssertMutexHeld()  -   Assert that the recovery mutex is held
+*/
+#if defined(SQLITE_THREADSAFE) && SQLITE_THREADSAFE==0
+# define recoverEnterMutex()
+# define recoverLeaveMutex()
+#else
+static void recoverEnterMutex(void){
+  sqlite3_mutex_enter(sqlite3_mutex_alloc(RECOVER_MUTEX_ID));
+}
+static void recoverLeaveMutex(void){
+  sqlite3_mutex_leave(sqlite3_mutex_alloc(RECOVER_MUTEX_ID));
+}
+#endif
+#if SQLITE_THREADSAFE+0>=1 && defined(SQLITE_DEBUG)
+static void recoverAssertMutexHeld(void){
+  assert( sqlite3_mutex_held(sqlite3_mutex_alloc(RECOVER_MUTEX_ID)) );
+}
+#else
+# define recoverAssertMutexHeld()
+#endif
+
+
+/*
+** Like strlen(). But handles NULL pointer arguments.
+*/
+static int recoverStrlen(const char *zStr){
+  if( zStr==0 ) return 0;
+  return (int)(strlen(zStr)&0x7fffffff);
+}
+
+/*
+** This function is a no-op if the recover handle passed as the first 
+** argument already contains an error (if p->errCode!=SQLITE_OK). 
+**
+** Otherwise, an attempt is made to allocate, zero and return a buffer nByte
+** bytes in size. If successful, a pointer to the new buffer is returned. Or,
+** if an OOM error occurs, NULL is returned and the handle error code
+** (p->errCode) set to SQLITE_NOMEM.
+*/
+static void *recoverMalloc(sqlite3_recover *p, i64 nByte){
+  void *pRet = 0;
+  assert( nByte>0 );
+  if( p->errCode==SQLITE_OK ){
+    pRet = sqlite3_malloc64(nByte);
+    if( pRet ){
+      memset(pRet, 0, nByte);
+    }else{
+      p->errCode = SQLITE_NOMEM;
+    }
+  }
+  return pRet;
+}
+
+/*
+** Set the error code and error message for the recover handle passed as
+** the first argument. The error code is set to the value of parameter
+** errCode.
+**
+** Parameter zFmt must be a printf() style formatting string. The handle 
+** error message is set to the result of using any trailing arguments for 
+** parameter substitutions in the formatting string.
+**
+** For example:
+**
+**   recoverError(p, SQLITE_ERROR, "no such table: %s", zTablename);
+*/
+static int recoverError(
+  sqlite3_recover *p, 
+  int errCode, 
+  const char *zFmt, ...
+){
+  char *z = 0;
+  va_list ap;
+  va_start(ap, zFmt);
+  if( zFmt ){
+    z = sqlite3_vmprintf(zFmt, ap);
+  }
+  va_end(ap);
+  sqlite3_free(p->zErrMsg);
+  p->zErrMsg = z;
+  p->errCode = errCode;
+  return errCode;
+}
+
+
+/*
+** This function is a no-op if p->errCode is initially other than SQLITE_OK.
+** In this case it returns NULL.
+**
+** Otherwise, an attempt is made to allocate and return a bitmap object
+** large enough to store a bit for all page numbers between 1 and nPg,
+** inclusive. The bitmap is initially zeroed.
+*/
+static RecoverBitmap *recoverBitmapAlloc(sqlite3_recover *p, i64 nPg){
+  int nElem = (nPg+1+31) / 32;
+  int nByte = sizeof(RecoverBitmap) + nElem*sizeof(u32);
+  RecoverBitmap *pRet = (RecoverBitmap*)recoverMalloc(p, nByte);
+
+  if( pRet ){
+    pRet->nPg = nPg;
+  }
+  return pRet;
+}
+
+/*
+** Free a bitmap object allocated by recoverBitmapAlloc().
+*/
+static void recoverBitmapFree(RecoverBitmap *pMap){
+  sqlite3_free(pMap);
+}
+
+/*
+** Set the bit associated with page iPg in bitvec pMap.
+*/
+static void recoverBitmapSet(RecoverBitmap *pMap, i64 iPg){
+  if( iPg<=pMap->nPg ){
+    int iElem = (iPg / 32);
+    int iBit = (iPg % 32);
+    pMap->aElem[iElem] |= (((u32)1) << iBit);
+  }
+}
+
+/*
+** Query bitmap object pMap for the state of the bit associated with page
+** iPg. Return 1 if it is set, or 0 otherwise.
+*/
+static int recoverBitmapQuery(RecoverBitmap *pMap, i64 iPg){
+  int ret = 1;
+  if( iPg<=pMap->nPg && iPg>0 ){
+    int iElem = (iPg / 32);
+    int iBit = (iPg % 32);
+    ret = (pMap->aElem[iElem] & (((u32)1) << iBit)) ? 1 : 0;
+  }
+  return ret;
+}
+
+/*
+** Set the recover handle error to the error code and message returned by
+** calling sqlite3_errcode() and sqlite3_errmsg(), respectively, on database
+** handle db.
+*/
+static int recoverDbError(sqlite3_recover *p, sqlite3 *db){
+  return recoverError(p, sqlite3_errcode(db), "%s", sqlite3_errmsg(db));
+}
+
+/*
+** This function is a no-op if recover handle p already contains an error
+** (if p->errCode!=SQLITE_OK). 
+**
+** Otherwise, it attempts to prepare the SQL statement in zSql against
+** database handle db. If successful, the statement handle is returned.
+** Or, if an error occurs, NULL is returned and an error left in the
+** recover handle.
+*/
+static sqlite3_stmt *recoverPrepare(
+  sqlite3_recover *p,
+  sqlite3 *db, 
+  const char *zSql
+){
+  sqlite3_stmt *pStmt = 0;
+  if( p->errCode==SQLITE_OK ){
+    if( sqlite3_prepare_v2(db, zSql, -1, &pStmt, 0) ){
+      recoverDbError(p, db);
+    }
+  }
+  return pStmt;
+}
+
+/*
+** This function is a no-op if recover handle p already contains an error
+** (if p->errCode!=SQLITE_OK). 
+**
+** Otherwise, argument zFmt is used as a printf() style format string,
+** along with any trailing arguments, to create an SQL statement. This
+** SQL statement is prepared against database handle db and, if successful,
+** the statment handle returned. Or, if an error occurs - either during
+** the printf() formatting or when preparing the resulting SQL - an
+** error code and message are left in the recover handle.
+*/
+static sqlite3_stmt *recoverPreparePrintf(
+  sqlite3_recover *p,
+  sqlite3 *db, 
+  const char *zFmt, ...
+){
+  sqlite3_stmt *pStmt = 0;
+  if( p->errCode==SQLITE_OK ){
+    va_list ap;
+    char *z;
+    va_start(ap, zFmt);
+    z = sqlite3_vmprintf(zFmt, ap);
+    va_end(ap);
+    if( z==0 ){
+      p->errCode = SQLITE_NOMEM;
+    }else{
+      pStmt = recoverPrepare(p, db, z);
+      sqlite3_free(z);
+    }
+  }
+  return pStmt;
+}
+
+/*
+** Reset SQLite statement handle pStmt. If the call to sqlite3_reset() 
+** indicates that an error occurred, and there is not already an error
+** in the recover handle passed as the first argument, set the error
+** code and error message appropriately.
+**
+** This function returns a copy of the statement handle pointer passed
+** as the second argument.
+*/
+static sqlite3_stmt *recoverReset(sqlite3_recover *p, sqlite3_stmt *pStmt){
+  int rc = sqlite3_reset(pStmt);
+  if( rc!=SQLITE_OK && rc!=SQLITE_CONSTRAINT && p->errCode==SQLITE_OK ){
+    recoverDbError(p, sqlite3_db_handle(pStmt));
+  }
+  return pStmt;
+}
+
+/*
+** Finalize SQLite statement handle pStmt. If the call to sqlite3_reset() 
+** indicates that an error occurred, and there is not already an error
+** in the recover handle passed as the first argument, set the error
+** code and error message appropriately.
+*/
+static void recoverFinalize(sqlite3_recover *p, sqlite3_stmt *pStmt){
+  sqlite3 *db = sqlite3_db_handle(pStmt);
+  int rc = sqlite3_finalize(pStmt);
+  if( rc!=SQLITE_OK && p->errCode==SQLITE_OK ){
+    recoverDbError(p, db);
+  }
+}
+
+/*
+** This function is a no-op if recover handle p already contains an error
+** (if p->errCode!=SQLITE_OK). A copy of p->errCode is returned in this 
+** case.
+**
+** Otherwise, execute SQL script zSql. If successful, return SQLITE_OK.
+** Or, if an error occurs, leave an error code and message in the recover
+** handle and return a copy of the error code.
+*/
+static int recoverExec(sqlite3_recover *p, sqlite3 *db, const char *zSql){
+  if( p->errCode==SQLITE_OK ){
+    int rc = sqlite3_exec(db, zSql, 0, 0, 0);
+    if( rc ){
+      recoverDbError(p, db);
+    }
+  }
+  return p->errCode;
+}
+
+/*
+** Bind the value pVal to parameter iBind of statement pStmt. Leave an
+** error in the recover handle passed as the first argument if an error
+** (e.g. an OOM) occurs.
+*/
+static void recoverBindValue(
+  sqlite3_recover *p, 
+  sqlite3_stmt *pStmt, 
+  int iBind, 
+  sqlite3_value *pVal
+){
+  if( p->errCode==SQLITE_OK ){
+    int rc = sqlite3_bind_value(pStmt, iBind, pVal);
+    if( rc ) recoverError(p, rc, 0);
+  }
+}
+
+/*
+** This function is a no-op if recover handle p already contains an error
+** (if p->errCode!=SQLITE_OK). NULL is returned in this case.
+**
+** Otherwise, an attempt is made to interpret zFmt as a printf() style
+** formatting string and the result of using the trailing arguments for
+** parameter substitution with it written into a buffer obtained from
+** sqlite3_malloc(). If successful, a pointer to the buffer is returned.
+** It is the responsibility of the caller to eventually free the buffer
+** using sqlite3_free().
+**
+** Or, if an error occurs, an error code and message is left in the recover
+** handle and NULL returned.
+*/
+static char *recoverMPrintf(sqlite3_recover *p, const char *zFmt, ...){
+  va_list ap;
+  char *z;
+  va_start(ap, zFmt);
+  z = sqlite3_vmprintf(zFmt, ap);
+  va_end(ap);
+  if( p->errCode==SQLITE_OK ){
+    if( z==0 ) p->errCode = SQLITE_NOMEM;
+  }else{
+    sqlite3_free(z);
+    z = 0;
+  }
+  return z;
+}
+
+/*
+** This function is a no-op if recover handle p already contains an error
+** (if p->errCode!=SQLITE_OK). Zero is returned in this case.
+**
+** Otherwise, execute "PRAGMA page_count" against the input database. If
+** successful, return the integer result. Or, if an error occurs, leave an
+** error code and error message in the sqlite3_recover handle and return
+** zero.
+*/
+static i64 recoverPageCount(sqlite3_recover *p){
+  i64 nPg = 0;
+  if( p->errCode==SQLITE_OK ){
+    sqlite3_stmt *pStmt = 0;
+    pStmt = recoverPreparePrintf(p, p->dbIn, "PRAGMA %Q.page_count", p->zDb);
+    if( pStmt ){
+      sqlite3_step(pStmt);
+      nPg = sqlite3_column_int64(pStmt, 0);
+    }
+    recoverFinalize(p, pStmt);
+  }
+  return nPg;
+}
+
+/*
+** Implementation of SQL scalar function "read_i32". The first argument to 
+** this function must be a blob. The second a non-negative integer. This 
+** function reads and returns a 32-bit big-endian integer from byte
+** offset (4*<arg2>) of the blob.
+**
+**     SELECT read_i32(<blob>, <idx>)
+*/
+static void recoverReadI32(
+  sqlite3_context *context, 
+  int argc, 
+  sqlite3_value **argv
+){
+  const unsigned char *pBlob;
+  int nBlob;
+  int iInt;
+
+  assert( argc==2 );
+  nBlob = sqlite3_value_bytes(argv[0]);
+  pBlob = (const unsigned char*)sqlite3_value_blob(argv[0]);
+  iInt = sqlite3_value_int(argv[1]) & 0xFFFF;
+
+  if( (iInt+1)*4<=nBlob ){
+    const unsigned char *a = &pBlob[iInt*4];
+    i64 iVal = ((i64)a[0]<<24)
+             + ((i64)a[1]<<16)
+             + ((i64)a[2]<< 8)
+             + ((i64)a[3]<< 0);
+    sqlite3_result_int64(context, iVal);
+  }
+}
+
+/*
+** Implementation of SQL scalar function "page_is_used". This function
+** is used as part of the procedure for locating orphan rows for the
+** lost-and-found table, and it depends on those routines having populated
+** the sqlite3_recover.laf.pUsed variable.
+**
+** The only argument to this function is a page-number. It returns true 
+** if the page has already been used somehow during data recovery, or false
+** otherwise.
+**
+**     SELECT page_is_used(<pgno>);
+*/
+static void recoverPageIsUsed(
+  sqlite3_context *pCtx,
+  int nArg,
+  sqlite3_value **apArg
+){
+  sqlite3_recover *p = (sqlite3_recover*)sqlite3_user_data(pCtx);
+  i64 pgno = sqlite3_value_int64(apArg[0]);
+  assert( nArg==1 );
+  sqlite3_result_int(pCtx, recoverBitmapQuery(p->laf.pUsed, pgno));
+}
+
+/*
+** The implementation of a user-defined SQL function invoked by the 
+** sqlite_dbdata and sqlite_dbptr virtual table modules to access pages
+** of the database being recovered.
+**
+** This function always takes a single integer argument. If the argument
+** is zero, then the value returned is the number of pages in the db being
+** recovered. If the argument is greater than zero, it is a page number. 
+** The value returned in this case is an SQL blob containing the data for 
+** the identified page of the db being recovered. e.g.
+**
+**     SELECT getpage(0);       -- return number of pages in db
+**     SELECT getpage(4);       -- return page 4 of db as a blob of data 
+*/
+static void recoverGetPage(
+  sqlite3_context *pCtx,
+  int nArg,
+  sqlite3_value **apArg
+){
+  sqlite3_recover *p = (sqlite3_recover*)sqlite3_user_data(pCtx);
+  i64 pgno = sqlite3_value_int64(apArg[0]);
+  sqlite3_stmt *pStmt = 0;
+
+  assert( nArg==1 );
+  if( pgno==0 ){
+    i64 nPg = recoverPageCount(p);
+    sqlite3_result_int64(pCtx, nPg);
+    return;
+  }else{
+    if( p->pGetPage==0 ){
+      pStmt = p->pGetPage = recoverPreparePrintf(
+          p, p->dbIn, "SELECT data FROM sqlite_dbpage(%Q) WHERE pgno=?", p->zDb
+      );
+    }else if( p->errCode==SQLITE_OK ){
+      pStmt = p->pGetPage;
+    }
+
+    if( pStmt ){
+      sqlite3_bind_int64(pStmt, 1, pgno);
+      if( SQLITE_ROW==sqlite3_step(pStmt) ){
+        const u8 *aPg;
+        int nPg;
+        assert( p->errCode==SQLITE_OK );
+        aPg = sqlite3_column_blob(pStmt, 0);
+        nPg = sqlite3_column_bytes(pStmt, 0);
+        if( pgno==1 && nPg==p->pgsz && 0==memcmp(p->pPage1Cache, aPg, nPg) ){
+          aPg = p->pPage1Disk;
+        }
+        sqlite3_result_blob(pCtx, aPg, nPg-p->nReserve, SQLITE_TRANSIENT);
+      }
+      recoverReset(p, pStmt);
+    }
+  }
+
+  if( p->errCode ){
+    if( p->zErrMsg ) sqlite3_result_error(pCtx, p->zErrMsg, -1);
+    sqlite3_result_error_code(pCtx, p->errCode);
+  }
+}
+
+/*
+** Find a string that is not found anywhere in z[].  Return a pointer
+** to that string.
+**
+** Try to use zA and zB first.  If both of those are already found in z[]
+** then make up some string and store it in the buffer zBuf.
+*/
+static const char *recoverUnusedString(
+  const char *z,                    /* Result must not appear anywhere in z */
+  const char *zA, const char *zB,   /* Try these first */
+  char *zBuf                        /* Space to store a generated string */
+){
+  unsigned i = 0;
+  if( strstr(z, zA)==0 ) return zA;
+  if( strstr(z, zB)==0 ) return zB;
+  do{
+    sqlite3_snprintf(20,zBuf,"(%s%u)", zA, i++);
+  }while( strstr(z,zBuf)!=0 );
+  return zBuf;
+}
+
+/*
+** Implementation of scalar SQL function "escape_crlf".  The argument passed to
+** this function is the output of built-in function quote(). If the first
+** character of the input is "'", indicating that the value passed to quote()
+** was a text value, then this function searches the input for "\n" and "\r"
+** characters and adds a wrapper similar to the following:
+**
+**   replace(replace(<input>, '\n', char(10), '\r', char(13));
+**
+** Or, if the first character of the input is not "'", then a copy of the input
+** is returned.
+*/
+static void recoverEscapeCrlf(
+  sqlite3_context *context, 
+  int argc, 
+  sqlite3_value **argv
+){
+  const char *zText = (const char*)sqlite3_value_text(argv[0]);
+  (void)argc;
+  if( zText && zText[0]=='\'' ){
+    int nText = sqlite3_value_bytes(argv[0]);
+    int i;
+    char zBuf1[20];
+    char zBuf2[20];
+    const char *zNL = 0;
+    const char *zCR = 0;
+    int nCR = 0;
+    int nNL = 0;
+
+    for(i=0; zText[i]; i++){
+      if( zNL==0 && zText[i]=='\n' ){
+        zNL = recoverUnusedString(zText, "\\n", "\\012", zBuf1);
+        nNL = (int)strlen(zNL);
+      }
+      if( zCR==0 && zText[i]=='\r' ){
+        zCR = recoverUnusedString(zText, "\\r", "\\015", zBuf2);
+        nCR = (int)strlen(zCR);
+      }
+    }
+
+    if( zNL || zCR ){
+      int iOut = 0;
+      i64 nMax = (nNL > nCR) ? nNL : nCR;
+      i64 nAlloc = nMax * nText + (nMax+64)*2;
+      char *zOut = (char*)sqlite3_malloc64(nAlloc);
+      if( zOut==0 ){
+        sqlite3_result_error_nomem(context);
+        return;
+      }
+
+      if( zNL && zCR ){
+        memcpy(&zOut[iOut], "replace(replace(", 16);
+        iOut += 16;
+      }else{
+        memcpy(&zOut[iOut], "replace(", 8);
+        iOut += 8;
+      }
+      for(i=0; zText[i]; i++){
+        if( zText[i]=='\n' ){
+          memcpy(&zOut[iOut], zNL, nNL);
+          iOut += nNL;
+        }else if( zText[i]=='\r' ){
+          memcpy(&zOut[iOut], zCR, nCR);
+          iOut += nCR;
+        }else{
+          zOut[iOut] = zText[i];
+          iOut++;
+        }
+      }
+
+      if( zNL ){
+        memcpy(&zOut[iOut], ",'", 2); iOut += 2;
+        memcpy(&zOut[iOut], zNL, nNL); iOut += nNL;
+        memcpy(&zOut[iOut], "', char(10))", 12); iOut += 12;
+      }
+      if( zCR ){
+        memcpy(&zOut[iOut], ",'", 2); iOut += 2;
+        memcpy(&zOut[iOut], zCR, nCR); iOut += nCR;
+        memcpy(&zOut[iOut], "', char(13))", 12); iOut += 12;
+      }
+
+      sqlite3_result_text(context, zOut, iOut, SQLITE_TRANSIENT);
+      sqlite3_free(zOut);
+      return;
+    }
+  }
+
+  sqlite3_result_value(context, argv[0]);
+}
+
+/*
+** This function is a no-op if recover handle p already contains an error
+** (if p->errCode!=SQLITE_OK). A copy of the error code is returned in
+** this case. 
+**
+** Otherwise, attempt to populate temporary table "recovery.schema" with the
+** parts of the database schema that can be extracted from the input database.
+**
+** If no error occurs, SQLITE_OK is returned. Otherwise, an error code
+** and error message are left in the recover handle and a copy of the
+** error code returned. It is not considered an error if part of all of
+** the database schema cannot be recovered due to corruption.
+*/
+static int recoverCacheSchema(sqlite3_recover *p){
+  return recoverExec(p, p->dbOut,
+    "WITH RECURSIVE pages(p) AS ("
+    "  SELECT 1"
+    "    UNION"
+    "  SELECT child FROM sqlite_dbptr('getpage()'), pages WHERE pgno=p"
+    ")"
+    "INSERT INTO recovery.schema SELECT"
+    "  max(CASE WHEN field=0 THEN value ELSE NULL END),"
+    "  max(CASE WHEN field=1 THEN value ELSE NULL END),"
+    "  max(CASE WHEN field=2 THEN value ELSE NULL END),"
+    "  max(CASE WHEN field=3 THEN value ELSE NULL END),"
+    "  max(CASE WHEN field=4 THEN value ELSE NULL END)"
+    "FROM sqlite_dbdata('getpage()') WHERE pgno IN ("
+    "  SELECT p FROM pages"
+    ") GROUP BY pgno, cell"
+  );
+}
+
+/*
+** If this recover handle is not in SQL callback mode (i.e. was not created 
+** using sqlite3_recover_init_sql()) of if an error has already occurred, 
+** this function is a no-op. Otherwise, issue a callback with SQL statement
+** zSql as the parameter. 
+**
+** If the callback returns non-zero, set the recover handle error code to
+** the value returned (so that the caller will abandon processing).
+*/
+static void recoverSqlCallback(sqlite3_recover *p, const char *zSql){
+  if( p->errCode==SQLITE_OK && p->xSql ){
+    int res = p->xSql(p->pSqlCtx, zSql);
+    if( res ){
+      recoverError(p, SQLITE_ERROR, "callback returned an error - %d", res);
+    }
+  }
+}
+
+/*
+** Transfer the following settings from the input database to the output
+** database:
+**
+**   + page-size,
+**   + auto-vacuum settings,
+**   + database encoding,
+**   + user-version (PRAGMA user_version), and
+**   + application-id (PRAGMA application_id), and
+*/
+static void recoverTransferSettings(sqlite3_recover *p){
+  const char *aPragma[] = {
+    "encoding",
+    "page_size",
+    "auto_vacuum",
+    "user_version",
+    "application_id"
+  };
+  int ii;
+
+  /* Truncate the output database to 0 pages in size. This is done by 
+  ** opening a new, empty, temp db, then using the backup API to clobber 
+  ** any existing output db with a copy of it. */
+  if( p->errCode==SQLITE_OK ){
+    sqlite3 *db2 = 0;
+    int rc = sqlite3_open("", &db2);
+    if( rc!=SQLITE_OK ){
+      recoverDbError(p, db2);
+      return;
+    }
+
+    for(ii=0; ii<(int)(sizeof(aPragma)/sizeof(aPragma[0])); ii++){
+      const char *zPrag = aPragma[ii];
+      sqlite3_stmt *p1 = 0;
+      p1 = recoverPreparePrintf(p, p->dbIn, "PRAGMA %Q.%s", p->zDb, zPrag);
+      if( p->errCode==SQLITE_OK && sqlite3_step(p1)==SQLITE_ROW ){
+        const char *zArg = (const char*)sqlite3_column_text(p1, 0);
+        char *z2 = recoverMPrintf(p, "PRAGMA %s = %Q", zPrag, zArg);
+        recoverSqlCallback(p, z2);
+        recoverExec(p, db2, z2);
+        sqlite3_free(z2);
+        if( zArg==0 ){
+          recoverError(p, SQLITE_NOMEM, 0);
+        }
+      }
+      recoverFinalize(p, p1);
+    }
+    recoverExec(p, db2, "CREATE TABLE t1(a); DROP TABLE t1;");
+
+    if( p->errCode==SQLITE_OK ){
+      sqlite3 *db = p->dbOut;
+      sqlite3_backup *pBackup = sqlite3_backup_init(db, "main", db2, "main");
+      if( pBackup ){
+        sqlite3_backup_step(pBackup, -1);
+        p->errCode = sqlite3_backup_finish(pBackup);
+      }else{
+        recoverDbError(p, db);
+      }
+    }
+
+    sqlite3_close(db2);
+  }
+}
+
+/*
+** This function is a no-op if recover handle p already contains an error
+** (if p->errCode!=SQLITE_OK). A copy of the error code is returned in
+** this case. 
+**
+** Otherwise, an attempt is made to open the output database, attach
+** and create the schema of the temporary database used to store
+** intermediate data, and to register all required user functions and
+** virtual table modules with the output handle.
+**
+** If no error occurs, SQLITE_OK is returned. Otherwise, an error code
+** and error message are left in the recover handle and a copy of the
+** error code returned.
+*/
+static int recoverOpenOutput(sqlite3_recover *p){
+  struct Func {
+    const char *zName;
+    int nArg;
+    void (*xFunc)(sqlite3_context*,int,sqlite3_value **);
+  } aFunc[] = {
+    { "getpage", 1, recoverGetPage },
+    { "page_is_used", 1, recoverPageIsUsed },
+    { "read_i32", 2, recoverReadI32 },
+    { "escape_crlf", 1, recoverEscapeCrlf },
+  };
+
+  const int flags = SQLITE_OPEN_URI|SQLITE_OPEN_CREATE|SQLITE_OPEN_READWRITE;
+  sqlite3 *db = 0;                /* New database handle */
+  int ii;                         /* For iterating through aFunc[] */
+
+  assert( p->dbOut==0 );
+
+  if( sqlite3_open_v2(p->zUri, &db, flags, 0) ){
+    recoverDbError(p, db);
+  }
+
+  /* Register the sqlite_dbdata and sqlite_dbptr virtual table modules.
+  ** These two are registered with the output database handle - this
+  ** module depends on the input handle supporting the sqlite_dbpage
+  ** virtual table only.  */
+  if( p->errCode==SQLITE_OK ){
+    p->errCode = sqlite3_dbdata_init(db, 0, 0);
+  }
+
+  /* Register the custom user-functions with the output handle. */
+  for(ii=0;
+      p->errCode==SQLITE_OK && ii<(int)(sizeof(aFunc)/sizeof(aFunc[0]));
+      ii++){
+    p->errCode = sqlite3_create_function(db, aFunc[ii].zName, 
+        aFunc[ii].nArg, SQLITE_UTF8, (void*)p, aFunc[ii].xFunc, 0, 0
+    );
+  }
+
+  p->dbOut = db;
+  return p->errCode;
+}
+
+/*
+** Attach the auxiliary database 'recovery' to the output database handle.
+** This temporary database is used during the recovery process and then 
+** discarded.
+*/
+static void recoverOpenRecovery(sqlite3_recover *p){
+  char *zSql = recoverMPrintf(p, "ATTACH %Q AS recovery;", p->zStateDb);
+  recoverExec(p, p->dbOut, zSql);
+  recoverExec(p, p->dbOut,
+      "PRAGMA writable_schema = 1;"
+      "CREATE TABLE recovery.map(pgno INTEGER PRIMARY KEY, parent INT);" 
+      "CREATE TABLE recovery.schema(type, name, tbl_name, rootpage, sql);"
+  );
+  sqlite3_free(zSql);
+}
+
+
+/*
+** This function is a no-op if recover handle p already contains an error
+** (if p->errCode!=SQLITE_OK).
+**
+** Otherwise, argument zName must be the name of a table that has just been
+** created in the output database. This function queries the output db
+** for the schema of said table, and creates a RecoverTable object to
+** store the schema in memory. The new RecoverTable object is linked into
+** the list at sqlite3_recover.pTblList.
+**
+** Parameter iRoot must be the root page of table zName in the INPUT 
+** database.
+*/
+static void recoverAddTable(
+  sqlite3_recover *p, 
+  const char *zName,              /* Name of table created in output db */
+  i64 iRoot                       /* Root page of same table in INPUT db */
+){
+  sqlite3_stmt *pStmt = recoverPreparePrintf(p, p->dbOut, 
+      "PRAGMA table_xinfo(%Q)", zName
+  );
+
+  if( pStmt ){
+    int iPk = -1;
+    int iBind = 1;
+    RecoverTable *pNew = 0;
+    int nCol = 0;
+    int nName = recoverStrlen(zName);
+    int nByte = 0;
+    while( sqlite3_step(pStmt)==SQLITE_ROW ){
+      nCol++;
+      nByte += (sqlite3_column_bytes(pStmt, 1)+1);
+    }
+    nByte += sizeof(RecoverTable) + nCol*sizeof(RecoverColumn) + nName+1;
+    recoverReset(p, pStmt);
+
+    pNew = recoverMalloc(p, nByte);
+    if( pNew ){
+      int i = 0;
+      int iField = 0;
+      char *csr = 0;
+      pNew->aCol = (RecoverColumn*)&pNew[1];
+      pNew->zTab = csr = (char*)&pNew->aCol[nCol];
+      pNew->nCol = nCol;
+      pNew->iRoot = iRoot;
+      memcpy(csr, zName, nName);
+      csr += nName+1;
+
+      for(i=0; sqlite3_step(pStmt)==SQLITE_ROW; i++){
+        int iPKF = sqlite3_column_int(pStmt, 5);
+        int n = sqlite3_column_bytes(pStmt, 1);
+        const char *z = (const char*)sqlite3_column_text(pStmt, 1);
+        const char *zType = (const char*)sqlite3_column_text(pStmt, 2);
+        int eHidden = sqlite3_column_int(pStmt, 6);
+
+        if( iPk==-1 && iPKF==1 && !sqlite3_stricmp("integer", zType) ) iPk = i;
+        if( iPKF>1 ) iPk = -2;
+        pNew->aCol[i].zCol = csr;
+        pNew->aCol[i].eHidden = eHidden;
+        if( eHidden==RECOVER_EHIDDEN_VIRTUAL ){
+          pNew->aCol[i].iField = -1;
+        }else{
+          pNew->aCol[i].iField = iField++;
+        }
+        if( eHidden!=RECOVER_EHIDDEN_VIRTUAL
+         && eHidden!=RECOVER_EHIDDEN_STORED
+        ){
+          pNew->aCol[i].iBind = iBind++;
+        }
+        memcpy(csr, z, n);
+        csr += (n+1);
+      }
+
+      pNew->pNext = p->pTblList;
+      p->pTblList = pNew;
+      pNew->bIntkey = 1;
+    }
+
+    recoverFinalize(p, pStmt);
+
+    pStmt = recoverPreparePrintf(p, p->dbOut, "PRAGMA index_xinfo(%Q)", zName);
+    while( pStmt && sqlite3_step(pStmt)==SQLITE_ROW ){
+      int iField = sqlite3_column_int(pStmt, 0);
+      int iCol = sqlite3_column_int(pStmt, 1);
+
+      assert( iCol<pNew->nCol );
+      pNew->aCol[iCol].iField = iField;
+
+      pNew->bIntkey = 0;
+      iPk = -2;
+    }
+    recoverFinalize(p, pStmt);
+
+    if( p->errCode==SQLITE_OK ){
+      if( iPk>=0 ){
+        pNew->aCol[iPk].bIPK = 1;
+      }else if( pNew->bIntkey ){
+        pNew->iRowidBind = iBind++;
+      }
+    }
+  }
+}
+
+/*
+** This function is called after recoverCacheSchema() has cached those parts
+** of the input database schema that could be recovered in temporary table
+** "recovery.schema". This function creates in the output database copies
+** of all parts of that schema that must be created before the tables can
+** be populated. Specifically, this means:
+**
+**     * all tables that are not VIRTUAL, and
+**     * UNIQUE indexes.
+**
+** If the recovery handle uses SQL callbacks, then callbacks containing
+** the associated "CREATE TABLE" and "CREATE INDEX" statements are made.
+**
+** Additionally, records are added to the sqlite_schema table of the
+** output database for any VIRTUAL tables. The CREATE VIRTUAL TABLE
+** records are written directly to sqlite_schema, not actually executed.
+** If the handle is in SQL callback mode, then callbacks are invoked 
+** with equivalent SQL statements.
+*/
+static int recoverWriteSchema1(sqlite3_recover *p){
+  sqlite3_stmt *pSelect = 0;
+  sqlite3_stmt *pTblname = 0;
+
+  pSelect = recoverPrepare(p, p->dbOut,
+      "WITH dbschema(rootpage, name, sql, tbl, isVirtual, isIndex) AS ("
+      "  SELECT rootpage, name, sql, "
+      "    type='table', "
+      "    sql LIKE 'create virtual%',"
+      "    (type='index' AND (sql LIKE '%unique%' OR ?1))"
+      "  FROM recovery.schema"
+      ")"
+      "SELECT rootpage, tbl, isVirtual, name, sql"
+      " FROM dbschema "
+      "  WHERE tbl OR isIndex"
+      "  ORDER BY tbl DESC, name=='sqlite_sequence' DESC"
+  );
+
+  pTblname = recoverPrepare(p, p->dbOut,
+      "SELECT name FROM sqlite_schema "
+      "WHERE type='table' ORDER BY rowid DESC LIMIT 1"
+  );
+
+  if( pSelect ){
+    sqlite3_bind_int(pSelect, 1, p->bSlowIndexes);
+    while( sqlite3_step(pSelect)==SQLITE_ROW ){
+      i64 iRoot = sqlite3_column_int64(pSelect, 0);
+      int bTable = sqlite3_column_int(pSelect, 1);
+      int bVirtual = sqlite3_column_int(pSelect, 2);
+      const char *zName = (const char*)sqlite3_column_text(pSelect, 3);
+      const char *zSql = (const char*)sqlite3_column_text(pSelect, 4);
+      char *zFree = 0;
+      int rc = SQLITE_OK;
+
+      if( bVirtual ){
+        zSql = (const char*)(zFree = recoverMPrintf(p,
+            "INSERT INTO sqlite_schema VALUES('table', %Q, %Q, 0, %Q)",
+            zName, zName, zSql
+        ));
+      }
+      rc = sqlite3_exec(p->dbOut, zSql, 0, 0, 0);
+      if( rc==SQLITE_OK ){
+        recoverSqlCallback(p, zSql);
+        if( bTable && !bVirtual ){
+          if( SQLITE_ROW==sqlite3_step(pTblname) ){
+            const char *zTbl = (const char*)sqlite3_column_text(pTblname, 0);
+            if( zTbl ) recoverAddTable(p, zTbl, iRoot);
+          }
+          recoverReset(p, pTblname);
+        }
+      }else if( rc!=SQLITE_ERROR ){
+        recoverDbError(p, p->dbOut);
+      }
+      sqlite3_free(zFree);
+    }
+  }
+  recoverFinalize(p, pSelect);
+  recoverFinalize(p, pTblname);
+
+  return p->errCode;
+}
+
+/*
+** This function is called after the output database has been populated. It
+** adds all recovered schema elements that were not created in the output
+** database by recoverWriteSchema1() - everything except for tables and
+** UNIQUE indexes. Specifically:
+**
+**     * views,
+**     * triggers,
+**     * non-UNIQUE indexes.
+**
+** If the recover handle is in SQL callback mode, then equivalent callbacks
+** are issued to create the schema elements.
+*/
+static int recoverWriteSchema2(sqlite3_recover *p){
+  sqlite3_stmt *pSelect = 0;
+
+  pSelect = recoverPrepare(p, p->dbOut,
+      p->bSlowIndexes ?
+      "SELECT rootpage, sql FROM recovery.schema "
+      "  WHERE type!='table' AND type!='index'"
+      :
+      "SELECT rootpage, sql FROM recovery.schema "
+      "  WHERE type!='table' AND (type!='index' OR sql NOT LIKE '%unique%')"
+  );
+
+  if( pSelect ){
+    while( sqlite3_step(pSelect)==SQLITE_ROW ){
+      const char *zSql = (const char*)sqlite3_column_text(pSelect, 1);
+      int rc = sqlite3_exec(p->dbOut, zSql, 0, 0, 0);
+      if( rc==SQLITE_OK ){
+        recoverSqlCallback(p, zSql);
+      }else if( rc!=SQLITE_ERROR ){
+        recoverDbError(p, p->dbOut);
+      }
+    }
+  }
+  recoverFinalize(p, pSelect);
+
+  return p->errCode;
+}
+
+/*
+** This function is a no-op if recover handle p already contains an error
+** (if p->errCode!=SQLITE_OK). In this case it returns NULL.
+**
+** Otherwise, if the recover handle is configured to create an output
+** database (was created by sqlite3_recover_init()), then this function
+** prepares and returns an SQL statement to INSERT a new record into table
+** pTab, assuming the first nField fields of a record extracted from disk
+** are valid.
+**
+** For example, if table pTab is:
+**
+**     CREATE TABLE name(a, b GENERATED ALWAYS AS (a+1) STORED, c, d, e);
+**
+** And nField is 4, then the SQL statement prepared and returned is:
+**
+**     INSERT INTO (a, c, d) VALUES (?1, ?2, ?3);
+**
+** In this case even though 4 values were extracted from the input db,
+** only 3 are written to the output, as the generated STORED column 
+** cannot be written.
+**
+** If the recover handle is in SQL callback mode, then the SQL statement
+** prepared is such that evaluating it returns a single row containing
+** a single text value - itself an SQL statement similar to the above,
+** except with SQL literals in place of the variables. For example:
+**
+**     SELECT 'INSERT INTO (a, c, d) VALUES (' 
+**          || quote(?1) || ', '
+**          || quote(?2) || ', '
+**          || quote(?3) || ')';
+**
+** In either case, it is the responsibility of the caller to eventually
+** free the statement handle using sqlite3_finalize().
+*/
+static sqlite3_stmt *recoverInsertStmt(
+  sqlite3_recover *p, 
+  RecoverTable *pTab,
+  int nField
+){
+  sqlite3_stmt *pRet = 0;
+  const char *zSep = "";
+  const char *zSqlSep = "";
+  char *zSql = 0;
+  char *zFinal = 0;
+  char *zBind = 0;
+  int ii;
+  int bSql = p->xSql ? 1 : 0;
+
+  if( nField<=0 ) return 0;
+
+  assert( nField<=pTab->nCol );
+
+  zSql = recoverMPrintf(p, "INSERT OR IGNORE INTO %Q(", pTab->zTab);
+
+  if( pTab->iRowidBind ){
+    assert( pTab->bIntkey );
+    zSql = recoverMPrintf(p, "%z_rowid_", zSql);
+    if( bSql ){
+      zBind = recoverMPrintf(p, "%zquote(?%d)", zBind, pTab->iRowidBind);
+    }else{
+      zBind = recoverMPrintf(p, "%z?%d", zBind, pTab->iRowidBind);
+    }
+    zSqlSep = "||', '||";
+    zSep = ", ";
+  }
+
+  for(ii=0; ii<nField; ii++){
+    int eHidden = pTab->aCol[ii].eHidden;
+    if( eHidden!=RECOVER_EHIDDEN_VIRTUAL
+     && eHidden!=RECOVER_EHIDDEN_STORED
+    ){
+      assert( pTab->aCol[ii].iField>=0 && pTab->aCol[ii].iBind>=1 );
+      zSql = recoverMPrintf(p, "%z%s%Q", zSql, zSep, pTab->aCol[ii].zCol);
+
+      if( bSql ){
+        zBind = recoverMPrintf(p, 
+            "%z%sescape_crlf(quote(?%d))", zBind, zSqlSep, pTab->aCol[ii].iBind
+        );
+        zSqlSep = "||', '||";
+      }else{
+        zBind = recoverMPrintf(p, "%z%s?%d", zBind, zSep, pTab->aCol[ii].iBind);
+      }
+      zSep = ", ";
+    }
+  }
+
+  if( bSql ){
+    zFinal = recoverMPrintf(p, "SELECT %Q || ') VALUES (' || %s || ')'", 
+        zSql, zBind
+    );
+  }else{
+    zFinal = recoverMPrintf(p, "%s) VALUES (%s)", zSql, zBind);
+  }
+
+  pRet = recoverPrepare(p, p->dbOut, zFinal);
+  sqlite3_free(zSql);
+  sqlite3_free(zBind);
+  sqlite3_free(zFinal);
+  
+  return pRet;
+}
+
+
+/*
+** Search the list of RecoverTable objects at p->pTblList for one that
+** has root page iRoot in the input database. If such an object is found,
+** return a pointer to it. Otherwise, return NULL.
+*/
+static RecoverTable *recoverFindTable(sqlite3_recover *p, u32 iRoot){
+  RecoverTable *pRet = 0;
+  for(pRet=p->pTblList; pRet && pRet->iRoot!=iRoot; pRet=pRet->pNext);
+  return pRet;
+}
+
+/*
+** This function attempts to create a lost and found table within the 
+** output db. If successful, it returns a pointer to a buffer containing
+** the name of the new table. It is the responsibility of the caller to
+** eventually free this buffer using sqlite3_free().
+**
+** If an error occurs, NULL is returned and an error code and error 
+** message left in the recover handle.
+*/
+static char *recoverLostAndFoundCreate(
+  sqlite3_recover *p,             /* Recover object */
+  int nField                      /* Number of column fields in new table */
+){
+  char *zTbl = 0;
+  sqlite3_stmt *pProbe = 0;
+  int ii = 0;
+
+  pProbe = recoverPrepare(p, p->dbOut,
+    "SELECT 1 FROM sqlite_schema WHERE name=?"
+  );
+  for(ii=-1; zTbl==0 && p->errCode==SQLITE_OK && ii<1000; ii++){
+    int bFail = 0;
+    if( ii<0 ){
+      zTbl = recoverMPrintf(p, "%s", p->zLostAndFound);
+    }else{
+      zTbl = recoverMPrintf(p, "%s_%d", p->zLostAndFound, ii);
+    }
+
+    if( p->errCode==SQLITE_OK ){
+      sqlite3_bind_text(pProbe, 1, zTbl, -1, SQLITE_STATIC);
+      if( SQLITE_ROW==sqlite3_step(pProbe) ){
+        bFail = 1;
+      }
+      recoverReset(p, pProbe);
+    }
+
+    if( bFail ){
+      sqlite3_clear_bindings(pProbe);
+      sqlite3_free(zTbl);
+      zTbl = 0;
+    }
+  }
+  recoverFinalize(p, pProbe);
+
+  if( zTbl ){
+    const char *zSep = 0;
+    char *zField = 0;
+    char *zSql = 0;
+
+    zSep = "rootpgno INTEGER, pgno INTEGER, nfield INTEGER, id INTEGER, ";
+    for(ii=0; p->errCode==SQLITE_OK && ii<nField; ii++){
+      zField = recoverMPrintf(p, "%z%sc%d", zField, zSep, ii);
+      zSep = ", ";
+    }
+
+    zSql = recoverMPrintf(p, "CREATE TABLE %s(%s)", zTbl, zField);
+    sqlite3_free(zField);
+
+    recoverExec(p, p->dbOut, zSql);
+    recoverSqlCallback(p, zSql);
+    sqlite3_free(zSql);
+  }else if( p->errCode==SQLITE_OK ){
+    recoverError(
+        p, SQLITE_ERROR, "failed to create %s output table", p->zLostAndFound
+    );
+  }
+
+  return zTbl;
+}
+
+/*
+** Synthesize and prepare an INSERT statement to write to the lost_and_found
+** table in the output database. The name of the table is zTab, and it has
+** nField c* fields.
+*/
+static sqlite3_stmt *recoverLostAndFoundInsert(
+  sqlite3_recover *p,
+  const char *zTab,
+  int nField
+){
+  int nTotal = nField + 4;
+  int ii;
+  char *zBind = 0;
+  sqlite3_stmt *pRet = 0;
+
+  if( p->xSql==0 ){
+    for(ii=0; ii<nTotal; ii++){
+      zBind = recoverMPrintf(p, "%z%s?", zBind, zBind?", ":"", ii);
+    }
+    pRet = recoverPreparePrintf(
+        p, p->dbOut, "INSERT INTO %s VALUES(%s)", zTab, zBind
+    );
+  }else{
+    const char *zSep = "";
+    for(ii=0; ii<nTotal; ii++){
+      zBind = recoverMPrintf(p, "%z%squote(?)", zBind, zSep);
+      zSep = "|| ', ' ||";
+    }
+    pRet = recoverPreparePrintf(
+        p, p->dbOut, "SELECT 'INSERT INTO %s VALUES(' || %s || ')'", zTab, zBind
+    );
+  }
+
+  sqlite3_free(zBind);
+  return pRet;
+}
+
+/*
+** Input database page iPg contains data that will be written to the
+** lost-and-found table of the output database. This function attempts
+** to identify the root page of the tree that page iPg belonged to.
+** If successful, it sets output variable (*piRoot) to the page number
+** of the root page and returns SQLITE_OK. Otherwise, if an error occurs,
+** an SQLite error code is returned and the final value of *piRoot 
+** undefined.
+*/
+static int recoverLostAndFoundFindRoot(
+  sqlite3_recover *p, 
+  i64 iPg,
+  i64 *piRoot
+){
+  RecoverStateLAF *pLaf = &p->laf;
+
+  if( pLaf->pFindRoot==0 ){
+    pLaf->pFindRoot = recoverPrepare(p, p->dbOut,
+        "WITH RECURSIVE p(pgno) AS ("
+        "  SELECT ?"
+        "    UNION"
+        "  SELECT parent FROM recovery.map AS m, p WHERE m.pgno=p.pgno"
+        ") "
+        "SELECT p.pgno FROM p, recovery.map m WHERE m.pgno=p.pgno "
+        "    AND m.parent IS NULL"
+    );
+  }
+  if( p->errCode==SQLITE_OK ){
+    sqlite3_bind_int64(pLaf->pFindRoot, 1, iPg);
+    if( sqlite3_step(pLaf->pFindRoot)==SQLITE_ROW ){
+      *piRoot = sqlite3_column_int64(pLaf->pFindRoot, 0);
+    }else{
+      *piRoot = iPg;
+    }
+    recoverReset(p, pLaf->pFindRoot);
+  }
+  return p->errCode;
+}
+
+/*
+** Recover data from page iPage of the input database and write it to
+** the lost-and-found table in the output database.
+*/
+static void recoverLostAndFoundOnePage(sqlite3_recover *p, i64 iPage){
+  RecoverStateLAF *pLaf = &p->laf;
+  sqlite3_value **apVal = pLaf->apVal;
+  sqlite3_stmt *pPageData = pLaf->pPageData;
+  sqlite3_stmt *pInsert = pLaf->pInsert;
+
+  int nVal = -1;
+  int iPrevCell = 0;
+  i64 iRoot = 0;
+  int bHaveRowid = 0;
+  i64 iRowid = 0;
+  int ii = 0;
+
+  if( recoverLostAndFoundFindRoot(p, iPage, &iRoot) ) return;
+  sqlite3_bind_int64(pPageData, 1, iPage);
+  while( p->errCode==SQLITE_OK && SQLITE_ROW==sqlite3_step(pPageData) ){
+    int iCell = sqlite3_column_int64(pPageData, 0);
+    int iField = sqlite3_column_int64(pPageData, 1);
+
+    if( iPrevCell!=iCell && nVal>=0 ){
+      /* Insert the new row */
+      sqlite3_bind_int64(pInsert, 1, iRoot);      /* rootpgno */
+      sqlite3_bind_int64(pInsert, 2, iPage);      /* pgno */
+      sqlite3_bind_int(pInsert, 3, nVal);         /* nfield */
+      if( bHaveRowid ){
+        sqlite3_bind_int64(pInsert, 4, iRowid);   /* id */
+      }
+      for(ii=0; ii<nVal; ii++){
+        recoverBindValue(p, pInsert, 5+ii, apVal[ii]);
+      }
+      if( sqlite3_step(pInsert)==SQLITE_ROW ){
+        recoverSqlCallback(p, (const char*)sqlite3_column_text(pInsert, 0));
+      }
+      recoverReset(p, pInsert);
+
+      /* Discard the accumulated row data */
+      for(ii=0; ii<nVal; ii++){
+        sqlite3_value_free(apVal[ii]);
+        apVal[ii] = 0;
+      }
+      sqlite3_clear_bindings(pInsert);
+      bHaveRowid = 0;
+      nVal = -1;
+    }
+
+    if( iCell<0 ) break;
+
+    if( iField<0 ){
+      assert( nVal==-1 );
+      iRowid = sqlite3_column_int64(pPageData, 2);
+      bHaveRowid = 1;
+      nVal = 0;
+    }else if( iField<pLaf->nMaxField ){
+      sqlite3_value *pVal = sqlite3_column_value(pPageData, 2);
+      apVal[iField] = sqlite3_value_dup(pVal);
+      assert( iField==nVal || (nVal==-1 && iField==0) );
+      nVal = iField+1;
+      if( apVal[iField]==0 ){
+        recoverError(p, SQLITE_NOMEM, 0);
+      }
+    }
+
+    iPrevCell = iCell;
+  }
+  recoverReset(p, pPageData);
+
+  for(ii=0; ii<nVal; ii++){
+    sqlite3_value_free(apVal[ii]);
+    apVal[ii] = 0;
+  }
+}
+
+/*
+** Perform one step (sqlite3_recover_step()) of work for the connection 
+** passed as the only argument, which is guaranteed to be in
+** RECOVER_STATE_LOSTANDFOUND3 state - during which the lost-and-found 
+** table of the output database is populated with recovered data that can 
+** not be assigned to any recovered schema object.
+*/ 
+static int recoverLostAndFound3Step(sqlite3_recover *p){
+  RecoverStateLAF *pLaf = &p->laf;
+  if( p->errCode==SQLITE_OK ){
+    if( pLaf->pInsert==0 ){
+      return SQLITE_DONE;
+    }else{
+      if( p->errCode==SQLITE_OK ){
+        int res = sqlite3_step(pLaf->pAllPage);
+        if( res==SQLITE_ROW ){
+          i64 iPage = sqlite3_column_int64(pLaf->pAllPage, 0);
+          if( recoverBitmapQuery(pLaf->pUsed, iPage)==0 ){
+            recoverLostAndFoundOnePage(p, iPage);
+          }
+        }else{
+          recoverReset(p, pLaf->pAllPage);
+          return SQLITE_DONE;
+        }
+      }
+    }
+  }
+  return SQLITE_OK;
+}
+
+/*
+** Initialize resources required in RECOVER_STATE_LOSTANDFOUND3 
+** state - during which the lost-and-found table of the output database 
+** is populated with recovered data that can not be assigned to any 
+** recovered schema object.
+*/ 
+static void recoverLostAndFound3Init(sqlite3_recover *p){
+  RecoverStateLAF *pLaf = &p->laf;
+
+  if( pLaf->nMaxField>0 ){
+    char *zTab = 0;               /* Name of lost_and_found table */
+
+    zTab = recoverLostAndFoundCreate(p, pLaf->nMaxField);
+    pLaf->pInsert = recoverLostAndFoundInsert(p, zTab, pLaf->nMaxField);
+    sqlite3_free(zTab);
+
+    pLaf->pAllPage = recoverPreparePrintf(p, p->dbOut,
+        "WITH RECURSIVE seq(ii) AS ("
+        "  SELECT 1 UNION ALL SELECT ii+1 FROM seq WHERE ii<%lld"
+        ")"
+        "SELECT ii FROM seq" , p->laf.nPg
+    );
+    pLaf->pPageData = recoverPrepare(p, p->dbOut,
+        "SELECT cell, field, value "
+        "FROM sqlite_dbdata('getpage()') d WHERE d.pgno=? "
+        "UNION ALL "
+        "SELECT -1, -1, -1"
+    );
+
+    pLaf->apVal = (sqlite3_value**)recoverMalloc(p, 
+        pLaf->nMaxField*sizeof(sqlite3_value*)
+    );
+  }
+}
+
+/*
+** Initialize resources required in RECOVER_STATE_WRITING state - during which
+** tables recovered from the schema of the input database are populated with
+** recovered data.
+*/ 
+static int recoverWriteDataInit(sqlite3_recover *p){
+  RecoverStateW1 *p1 = &p->w1;
+  RecoverTable *pTbl = 0;
+  int nByte = 0;
+
+  /* Figure out the maximum number of columns for any table in the schema */
+  assert( p1->nMax==0 );
+  for(pTbl=p->pTblList; pTbl; pTbl=pTbl->pNext){
+    if( pTbl->nCol>p1->nMax ) p1->nMax = pTbl->nCol;
+  }
+
+  /* Allocate an array of (sqlite3_value*) in which to accumulate the values
+  ** that will be written to the output database in a single row. */
+  nByte = sizeof(sqlite3_value*) * (p1->nMax+1);
+  p1->apVal = (sqlite3_value**)recoverMalloc(p, nByte);
+  if( p1->apVal==0 ) return p->errCode;
+
+  /* Prepare the SELECT to loop through schema tables (pTbls) and the SELECT
+  ** to loop through cells that appear to belong to a single table (pSel). */
+  p1->pTbls = recoverPrepare(p, p->dbOut,
+      "SELECT rootpage FROM recovery.schema "
+      "  WHERE type='table' AND (sql NOT LIKE 'create virtual%')"
+      "  ORDER BY (tbl_name='sqlite_sequence') ASC"
+  );
+  p1->pSel = recoverPrepare(p, p->dbOut, 
+      "WITH RECURSIVE pages(page) AS ("
+      "  SELECT ?1"
+      "    UNION"
+      "  SELECT child FROM sqlite_dbptr('getpage()'), pages "
+      "    WHERE pgno=page"
+      ") "
+      "SELECT page, cell, field, value "
+      "FROM sqlite_dbdata('getpage()') d, pages p WHERE p.page=d.pgno "
+      "UNION ALL "
+      "SELECT 0, 0, 0, 0"
+  );
+
+  return p->errCode;
+}
+
+/*
+** Clean up resources allocated by recoverWriteDataInit() (stuff in 
+** sqlite3_recover.w1).
+*/
+static void recoverWriteDataCleanup(sqlite3_recover *p){
+  RecoverStateW1 *p1 = &p->w1;
+  int ii;
+  for(ii=0; ii<p1->nVal; ii++){
+    sqlite3_value_free(p1->apVal[ii]);
+  }
+  sqlite3_free(p1->apVal);
+  recoverFinalize(p, p1->pInsert);
+  recoverFinalize(p, p1->pTbls);
+  recoverFinalize(p, p1->pSel);
+  memset(p1, 0, sizeof(*p1));
+}
+
+/*
+** Perform one step (sqlite3_recover_step()) of work for the connection 
+** passed as the only argument, which is guaranteed to be in
+** RECOVER_STATE_WRITING state - during which tables recovered from the
+** schema of the input database are populated with recovered data.
+*/ 
+static int recoverWriteDataStep(sqlite3_recover *p){
+  RecoverStateW1 *p1 = &p->w1;
+  sqlite3_stmt *pSel = p1->pSel;
+  sqlite3_value **apVal = p1->apVal;
+
+  if( p->errCode==SQLITE_OK && p1->pTab==0 ){
+    if( sqlite3_step(p1->pTbls)==SQLITE_ROW ){
+      i64 iRoot = sqlite3_column_int64(p1->pTbls, 0);
+      p1->pTab = recoverFindTable(p, iRoot);
+
+      recoverFinalize(p, p1->pInsert);
+      p1->pInsert = 0;
+
+      /* If this table is unknown, return early. The caller will invoke this
+      ** function again and it will move on to the next table.  */
+      if( p1->pTab==0 ) return p->errCode;
+
+      /* If this is the sqlite_sequence table, delete any rows added by
+      ** earlier INSERT statements on tables with AUTOINCREMENT primary
+      ** keys before recovering its contents. The p1->pTbls SELECT statement
+      ** is rigged to deliver "sqlite_sequence" last of all, so we don't
+      ** worry about it being modified after it is recovered. */
+      if( sqlite3_stricmp("sqlite_sequence", p1->pTab->zTab)==0 ){
+        recoverExec(p, p->dbOut, "DELETE FROM sqlite_sequence");
+        recoverSqlCallback(p, "DELETE FROM sqlite_sequence");
+      }
+
+      /* Bind the root page of this table within the original database to 
+      ** SELECT statement p1->pSel. The SELECT statement will then iterate
+      ** through cells that look like they belong to table pTab.  */
+      sqlite3_bind_int64(pSel, 1, iRoot);
+
+      p1->nVal = 0;
+      p1->bHaveRowid = 0;
+      p1->iPrevPage = -1;
+      p1->iPrevCell = -1;
+    }else{
+      return SQLITE_DONE;
+    }
+  }
+  assert( p->errCode!=SQLITE_OK || p1->pTab );
+
+  if( p->errCode==SQLITE_OK && sqlite3_step(pSel)==SQLITE_ROW ){
+    RecoverTable *pTab = p1->pTab;
+
+    i64 iPage = sqlite3_column_int64(pSel, 0);
+    int iCell = sqlite3_column_int(pSel, 1);
+    int iField = sqlite3_column_int(pSel, 2);
+    sqlite3_value *pVal = sqlite3_column_value(pSel, 3);
+    int bNewCell = (p1->iPrevPage!=iPage || p1->iPrevCell!=iCell);
+
+    assert( bNewCell==0 || (iField==-1 || iField==0) );
+    assert( bNewCell || iField==p1->nVal || p1->nVal==pTab->nCol );
+
+    if( bNewCell ){
+      int ii = 0;
+      if( p1->nVal>=0 ){
+        if( p1->pInsert==0 || p1->nVal!=p1->nInsert ){
+          recoverFinalize(p, p1->pInsert);
+          p1->pInsert = recoverInsertStmt(p, pTab, p1->nVal);
+          p1->nInsert = p1->nVal;
+        }
+        if( p1->nVal>0 ){
+          sqlite3_stmt *pInsert = p1->pInsert;
+          for(ii=0; ii<pTab->nCol; ii++){
+            RecoverColumn *pCol = &pTab->aCol[ii];
+            int iBind = pCol->iBind;
+            if( iBind>0 ){
+              if( pCol->bIPK ){
+                sqlite3_bind_int64(pInsert, iBind, p1->iRowid);
+              }else if( pCol->iField<p1->nVal ){
+                recoverBindValue(p, pInsert, iBind, apVal[pCol->iField]);
+              }
+            }
+          }
+          if( p->bRecoverRowid && pTab->iRowidBind>0 && p1->bHaveRowid ){
+            sqlite3_bind_int64(pInsert, pTab->iRowidBind, p1->iRowid);
+          }
+          if( SQLITE_ROW==sqlite3_step(pInsert) ){
+            const char *z = (const char*)sqlite3_column_text(pInsert, 0);
+            recoverSqlCallback(p, z);
+          }
+          recoverReset(p, pInsert);
+          assert( p->errCode || pInsert );
+          if( pInsert ) sqlite3_clear_bindings(pInsert);
+        }
+      }
+
+      for(ii=0; ii<p1->nVal; ii++){
+        sqlite3_value_free(apVal[ii]);
+        apVal[ii] = 0;
+      }
+      p1->nVal = -1;
+      p1->bHaveRowid = 0;
+    }
+
+    if( iPage!=0 ){
+      if( iField<0 ){
+        p1->iRowid = sqlite3_column_int64(pSel, 3);
+        assert( p1->nVal==-1 );
+        p1->nVal = 0;
+        p1->bHaveRowid = 1;
+      }else if( iField<pTab->nCol ){
+        assert( apVal[iField]==0 );
+        apVal[iField] = sqlite3_value_dup( pVal );
+        if( apVal[iField]==0 ){
+          recoverError(p, SQLITE_NOMEM, 0);
+        }
+        p1->nVal = iField+1;
+      }else if( pTab->nCol==0 ){
+        p1->nVal = pTab->nCol;
+      }
+      p1->iPrevCell = iCell;
+      p1->iPrevPage = iPage;
+    }
+  }else{
+    recoverReset(p, pSel);
+    p1->pTab = 0;
+  }
+
+  return p->errCode;
+}
+
+/*
+** Initialize resources required by sqlite3_recover_step() in
+** RECOVER_STATE_LOSTANDFOUND1 state - during which the set of pages not
+** already allocated to a recovered schema element is determined.
+*/ 
+static void recoverLostAndFound1Init(sqlite3_recover *p){
+  RecoverStateLAF *pLaf = &p->laf;
+  sqlite3_stmt *pStmt = 0;
+
+  assert( p->laf.pUsed==0 );
+  pLaf->nPg = recoverPageCount(p);
+  pLaf->pUsed = recoverBitmapAlloc(p, pLaf->nPg);
+
+  /* Prepare a statement to iterate through all pages that are part of any tree
+  ** in the recoverable part of the input database schema to the bitmap. And,
+  ** if !p->bFreelistCorrupt, add all pages that appear to be part of the
+  ** freelist.  */
+  pStmt = recoverPrepare(
+      p, p->dbOut,
+      "WITH trunk(pgno) AS ("
+      "  SELECT read_i32(getpage(1), 8) AS x WHERE x>0"
+      "    UNION"
+      "  SELECT read_i32(getpage(trunk.pgno), 0) AS x FROM trunk WHERE x>0"
+      "),"
+      "trunkdata(pgno, data) AS ("
+      "  SELECT pgno, getpage(pgno) FROM trunk"
+      "),"
+      "freelist(data, n, freepgno) AS ("
+      "  SELECT data, min(16384, read_i32(data, 1)-1), pgno FROM trunkdata"
+      "    UNION ALL"
+      "  SELECT data, n-1, read_i32(data, 2+n) FROM freelist WHERE n>=0"
+      "),"
+      ""
+      "roots(r) AS ("
+      "  SELECT 1 UNION ALL"
+      "  SELECT rootpage FROM recovery.schema WHERE rootpage>0"
+      "),"
+      "used(page) AS ("
+      "  SELECT r FROM roots"
+      "    UNION"
+      "  SELECT child FROM sqlite_dbptr('getpage()'), used "
+      "    WHERE pgno=page"
+      ") "
+      "SELECT page FROM used"
+      " UNION ALL "
+      "SELECT freepgno FROM freelist WHERE NOT ?"
+  );
+  if( pStmt ) sqlite3_bind_int(pStmt, 1, p->bFreelistCorrupt);
+  pLaf->pUsedPages = pStmt;
+}
+
+/*
+** Perform one step (sqlite3_recover_step()) of work for the connection 
+** passed as the only argument, which is guaranteed to be in
+** RECOVER_STATE_LOSTANDFOUND1 state - during which the set of pages not
+** already allocated to a recovered schema element is determined.
+*/ 
+static int recoverLostAndFound1Step(sqlite3_recover *p){
+  RecoverStateLAF *pLaf = &p->laf;
+  int rc = p->errCode;
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_step(pLaf->pUsedPages);
+    if( rc==SQLITE_ROW ){
+      i64 iPg = sqlite3_column_int64(pLaf->pUsedPages, 0);
+      recoverBitmapSet(pLaf->pUsed, iPg);
+      rc = SQLITE_OK;
+    }else{
+      recoverFinalize(p, pLaf->pUsedPages);
+      pLaf->pUsedPages = 0;
+    }
+  }
+  return rc;
+}
+
+/*
+** Initialize resources required by RECOVER_STATE_LOSTANDFOUND2 
+** state - during which the pages identified in RECOVER_STATE_LOSTANDFOUND1
+** are sorted into sets that likely belonged to the same database tree.
+*/ 
+static void recoverLostAndFound2Init(sqlite3_recover *p){
+  RecoverStateLAF *pLaf = &p->laf;
+
+  assert( p->laf.pAllAndParent==0 );
+  assert( p->laf.pMapInsert==0 );
+  assert( p->laf.pMaxField==0 );
+  assert( p->laf.nMaxField==0 );
+
+  pLaf->pMapInsert = recoverPrepare(p, p->dbOut,
+      "INSERT OR IGNORE INTO recovery.map(pgno, parent) VALUES(?, ?)"
+  );
+  pLaf->pAllAndParent = recoverPreparePrintf(p, p->dbOut,
+      "WITH RECURSIVE seq(ii) AS ("
+      "  SELECT 1 UNION ALL SELECT ii+1 FROM seq WHERE ii<%lld"
+      ")"
+      "SELECT pgno, child FROM sqlite_dbptr('getpage()') "
+      " UNION ALL "
+      "SELECT NULL, ii FROM seq", p->laf.nPg
+  );
+  pLaf->pMaxField = recoverPreparePrintf(p, p->dbOut,
+      "SELECT max(field)+1 FROM sqlite_dbdata('getpage') WHERE pgno = ?"
+  );
+}
+
+/*
+** Perform one step (sqlite3_recover_step()) of work for the connection 
+** passed as the only argument, which is guaranteed to be in
+** RECOVER_STATE_LOSTANDFOUND2 state - during which the pages identified 
+** in RECOVER_STATE_LOSTANDFOUND1 are sorted into sets that likely belonged 
+** to the same database tree.
+*/ 
+static int recoverLostAndFound2Step(sqlite3_recover *p){
+  RecoverStateLAF *pLaf = &p->laf;
+  if( p->errCode==SQLITE_OK ){
+    int res = sqlite3_step(pLaf->pAllAndParent);
+    if( res==SQLITE_ROW ){
+      i64 iChild = sqlite3_column_int(pLaf->pAllAndParent, 1);
+      if( recoverBitmapQuery(pLaf->pUsed, iChild)==0 ){
+        sqlite3_bind_int64(pLaf->pMapInsert, 1, iChild);
+        sqlite3_bind_value(pLaf->pMapInsert, 2, 
+            sqlite3_column_value(pLaf->pAllAndParent, 0)
+        );
+        sqlite3_step(pLaf->pMapInsert);
+        recoverReset(p, pLaf->pMapInsert);
+        sqlite3_bind_int64(pLaf->pMaxField, 1, iChild);
+        if( SQLITE_ROW==sqlite3_step(pLaf->pMaxField) ){
+          int nMax = sqlite3_column_int(pLaf->pMaxField, 0);
+          if( nMax>pLaf->nMaxField ) pLaf->nMaxField = nMax;
+        }
+        recoverReset(p, pLaf->pMaxField);
+      }
+    }else{
+      recoverFinalize(p, pLaf->pAllAndParent);
+      pLaf->pAllAndParent =0;
+      return SQLITE_DONE;
+    }
+  }
+  return p->errCode;
+}
+
+/*
+** Free all resources allocated as part of sqlite3_recover_step() calls
+** in one of the RECOVER_STATE_LOSTANDFOUND[123] states.
+*/
+static void recoverLostAndFoundCleanup(sqlite3_recover *p){
+  recoverBitmapFree(p->laf.pUsed);
+  p->laf.pUsed = 0;
+  sqlite3_finalize(p->laf.pUsedPages);
+  sqlite3_finalize(p->laf.pAllAndParent);
+  sqlite3_finalize(p->laf.pMapInsert);
+  sqlite3_finalize(p->laf.pMaxField);
+  sqlite3_finalize(p->laf.pFindRoot);
+  sqlite3_finalize(p->laf.pInsert);
+  sqlite3_finalize(p->laf.pAllPage);
+  sqlite3_finalize(p->laf.pPageData);
+  p->laf.pUsedPages = 0;
+  p->laf.pAllAndParent = 0;
+  p->laf.pMapInsert = 0;
+  p->laf.pMaxField = 0;
+  p->laf.pFindRoot = 0;
+  p->laf.pInsert = 0;
+  p->laf.pAllPage = 0;
+  p->laf.pPageData = 0;
+  sqlite3_free(p->laf.apVal);
+  p->laf.apVal = 0;
+}
+
+/*
+** Free all resources allocated as part of sqlite3_recover_step() calls.
+*/
+static void recoverFinalCleanup(sqlite3_recover *p){
+  RecoverTable *pTab = 0;
+  RecoverTable *pNext = 0;
+
+  recoverWriteDataCleanup(p);
+  recoverLostAndFoundCleanup(p);
+
+  for(pTab=p->pTblList; pTab; pTab=pNext){
+    pNext = pTab->pNext;
+    sqlite3_free(pTab);
+  }
+  p->pTblList = 0;
+  sqlite3_finalize(p->pGetPage);
+  p->pGetPage = 0;
+  sqlite3_file_control(p->dbIn, p->zDb, SQLITE_FCNTL_RESET_CACHE, 0);
+
+  {
+#ifndef NDEBUG
+    int res = 
+#endif
+       sqlite3_close(p->dbOut);
+    assert( res==SQLITE_OK );
+  }
+  p->dbOut = 0;
+}
+
+/*
+** Decode and return an unsigned 16-bit big-endian integer value from 
+** buffer a[].
+*/
+static u32 recoverGetU16(const u8 *a){
+  return (((u32)a[0])<<8) + ((u32)a[1]);
+}
+
+/*
+** Decode and return an unsigned 32-bit big-endian integer value from 
+** buffer a[].
+*/
+static u32 recoverGetU32(const u8 *a){
+  return (((u32)a[0])<<24) + (((u32)a[1])<<16) + (((u32)a[2])<<8) + ((u32)a[3]);
+}
+
+/*
+** Decode an SQLite varint from buffer a[]. Write the decoded value to (*pVal)
+** and return the number of bytes consumed.
+*/
+static int recoverGetVarint(const u8 *a, i64 *pVal){
+  sqlite3_uint64 u = 0;
+  int i;
+  for(i=0; i<8; i++){
+    u = (u<<7) + (a[i]&0x7f);
+    if( (a[i]&0x80)==0 ){ *pVal = (sqlite3_int64)u; return i+1; }
+  }
+  u = (u<<8) + (a[i]&0xff);
+  *pVal = (sqlite3_int64)u;
+  return 9;
+}
+
+/*
+** The second argument points to a buffer n bytes in size. If this buffer
+** or a prefix thereof appears to contain a well-formed SQLite b-tree page, 
+** return the page-size in bytes. Otherwise, if the buffer does not 
+** appear to contain a well-formed b-tree page, return 0.
+*/
+static int recoverIsValidPage(u8 *aTmp, const u8 *a, int n){
+  u8 *aUsed = aTmp;
+  int nFrag = 0;
+  int nActual = 0;
+  int iFree = 0;
+  int nCell = 0;                  /* Number of cells on page */
+  int iCellOff = 0;               /* Offset of cell array in page */
+  int iContent = 0;
+  int eType = 0;
+  int ii = 0;
+
+  eType = (int)a[0];
+  if( eType!=0x02 && eType!=0x05 && eType!=0x0A && eType!=0x0D ) return 0;
+
+  iFree = (int)recoverGetU16(&a[1]);
+  nCell = (int)recoverGetU16(&a[3]);
+  iContent = (int)recoverGetU16(&a[5]);
+  if( iContent==0 ) iContent = 65536;
+  nFrag = (int)a[7];
+
+  if( iContent>n ) return 0;
+
+  memset(aUsed, 0, n);
+  memset(aUsed, 0xFF, iContent);
+
+  /* Follow the free-list. This is the same format for all b-tree pages. */
+  if( iFree && iFree<=iContent ) return 0;
+  while( iFree ){
+    int iNext = 0;
+    int nByte = 0;
+    if( iFree>(n-4) ) return 0;
+    iNext = recoverGetU16(&a[iFree]);
+    nByte = recoverGetU16(&a[iFree+2]);
+    if( iFree+nByte>n || nByte<4 ) return 0;
+    if( iNext && iNext<iFree+nByte ) return 0;
+    memset(&aUsed[iFree], 0xFF, nByte);
+    iFree = iNext;
+  }
+
+  /* Run through the cells */
+  if( eType==0x02 || eType==0x05 ){
+    iCellOff = 12;
+  }else{
+    iCellOff = 8;
+  }
+  if( (iCellOff + 2*nCell)>iContent ) return 0;
+  for(ii=0; ii<nCell; ii++){
+    int iByte;
+    i64 nPayload = 0;
+    int nByte = 0;
+    int iOff = recoverGetU16(&a[iCellOff + 2*ii]);
+    if( iOff<iContent || iOff>n ){
+      return 0;
+    }
+    if( eType==0x05 || eType==0x02 ) nByte += 4;
+    nByte += recoverGetVarint(&a[iOff+nByte], &nPayload);
+    if( eType==0x0D ){
+      i64 dummy = 0;
+      nByte += recoverGetVarint(&a[iOff+nByte], &dummy);
+    }
+    if( eType!=0x05 ){
+      int X = (eType==0x0D) ? n-35 : (((n-12)*64/255)-23);
+      int M = ((n-12)*32/255)-23;
+      int K = M+((nPayload-M)%(n-4));
+
+      if( nPayload<X ){
+        nByte += nPayload;
+      }else if( K<=X ){
+        nByte += K+4;
+      }else{
+        nByte += M+4;
+      }
+    }
+
+    if( iOff+nByte>n ){
+      return 0;
+    }
+    for(iByte=iOff; iByte<(iOff+nByte); iByte++){
+      if( aUsed[iByte]!=0 ){
+        return 0;
+      }
+      aUsed[iByte] = 0xFF;
+    }
+  }
+
+  nActual = 0;
+  for(ii=0; ii<n; ii++){
+    if( aUsed[ii]==0 ) nActual++;
+  }
+  return (nActual==nFrag);
+}
+
+
+static int recoverVfsClose(sqlite3_file*);
+static int recoverVfsRead(sqlite3_file*, void*, int iAmt, sqlite3_int64 iOfst);
+static int recoverVfsWrite(sqlite3_file*, const void*, int, sqlite3_int64);
+static int recoverVfsTruncate(sqlite3_file*, sqlite3_int64 size);
+static int recoverVfsSync(sqlite3_file*, int flags);
+static int recoverVfsFileSize(sqlite3_file*, sqlite3_int64 *pSize);
+static int recoverVfsLock(sqlite3_file*, int);
+static int recoverVfsUnlock(sqlite3_file*, int);
+static int recoverVfsCheckReservedLock(sqlite3_file*, int *pResOut);
+static int recoverVfsFileControl(sqlite3_file*, int op, void *pArg);
+static int recoverVfsSectorSize(sqlite3_file*);
+static int recoverVfsDeviceCharacteristics(sqlite3_file*);
+static int recoverVfsShmMap(sqlite3_file*, int, int, int, void volatile**);
+static int recoverVfsShmLock(sqlite3_file*, int offset, int n, int flags);
+static void recoverVfsShmBarrier(sqlite3_file*);
+static int recoverVfsShmUnmap(sqlite3_file*, int deleteFlag);
+static int recoverVfsFetch(sqlite3_file*, sqlite3_int64, int, void**);
+static int recoverVfsUnfetch(sqlite3_file *pFd, sqlite3_int64 iOff, void *p);
+
+static sqlite3_io_methods recover_methods = {
+  2, /* iVersion */
+  recoverVfsClose,
+  recoverVfsRead,
+  recoverVfsWrite,
+  recoverVfsTruncate,
+  recoverVfsSync,
+  recoverVfsFileSize,
+  recoverVfsLock,
+  recoverVfsUnlock,
+  recoverVfsCheckReservedLock,
+  recoverVfsFileControl,
+  recoverVfsSectorSize,
+  recoverVfsDeviceCharacteristics,
+  recoverVfsShmMap,
+  recoverVfsShmLock,
+  recoverVfsShmBarrier,
+  recoverVfsShmUnmap,
+  recoverVfsFetch,
+  recoverVfsUnfetch
+};
+
+static int recoverVfsClose(sqlite3_file *pFd){
+  assert( pFd->pMethods!=&recover_methods );
+  return pFd->pMethods->xClose(pFd);
+}
+
+/*
+** Write value v to buffer a[] as a 16-bit big-endian unsigned integer.
+*/
+static void recoverPutU16(u8 *a, u32 v){
+  a[0] = (v>>8) & 0x00FF;
+  a[1] = (v>>0) & 0x00FF;
+}
+
+/*
+** Write value v to buffer a[] as a 32-bit big-endian unsigned integer.
+*/
+static void recoverPutU32(u8 *a, u32 v){
+  a[0] = (v>>24) & 0x00FF;
+  a[1] = (v>>16) & 0x00FF;
+  a[2] = (v>>8) & 0x00FF;
+  a[3] = (v>>0) & 0x00FF;
+}
+
+/*
+** Detect the page-size of the database opened by file-handle pFd by 
+** searching the first part of the file for a well-formed SQLite b-tree 
+** page. If parameter nReserve is non-zero, then as well as searching for
+** a b-tree page with zero reserved bytes, this function searches for one
+** with nReserve reserved bytes at the end of it.
+**
+** If successful, set variable p->detected_pgsz to the detected page-size
+** in bytes and return SQLITE_OK. Or, if no error occurs but no valid page
+** can be found, return SQLITE_OK but leave p->detected_pgsz set to 0. Or,
+** if an error occurs (e.g. an IO or OOM error), then an SQLite error code
+** is returned. The final value of p->detected_pgsz is undefined in this
+** case.
+*/
+static int recoverVfsDetectPagesize(
+  sqlite3_recover *p,             /* Recover handle */
+  sqlite3_file *pFd,              /* File-handle open on input database */
+  u32 nReserve,                   /* Possible nReserve value */
+  i64 nSz                         /* Size of database file in bytes */
+){
+  int rc = SQLITE_OK;
+  const int nMin = 512;
+  const int nMax = 65536;
+  const int nMaxBlk = 4;
+  u32 pgsz = 0;
+  int iBlk = 0;
+  u8 *aPg = 0;
+  u8 *aTmp = 0;
+  int nBlk = 0;
+
+  aPg = (u8*)sqlite3_malloc(2*nMax);
+  if( aPg==0 ) return SQLITE_NOMEM;
+  aTmp = &aPg[nMax];
+
+  nBlk = (nSz+nMax-1)/nMax;
+  if( nBlk>nMaxBlk ) nBlk = nMaxBlk;
+
+  do {
+    for(iBlk=0; rc==SQLITE_OK && iBlk<nBlk; iBlk++){
+      int nByte = (nSz>=((iBlk+1)*nMax)) ? nMax : (nSz % nMax);
+      memset(aPg, 0, nMax);
+      rc = pFd->pMethods->xRead(pFd, aPg, nByte, iBlk*nMax);
+      if( rc==SQLITE_OK ){
+        int pgsz2;
+        for(pgsz2=(pgsz ? pgsz*2 : nMin); pgsz2<=nMax; pgsz2=pgsz2*2){
+          int iOff;
+          for(iOff=0; iOff<nMax; iOff+=pgsz2){
+            if( recoverIsValidPage(aTmp, &aPg[iOff], pgsz2-nReserve) ){
+              pgsz = pgsz2;
+              break;
+            }
+          }
+        }
+      }
+    }
+    if( pgsz>(u32)p->detected_pgsz ){
+      p->detected_pgsz = pgsz;
+      p->nReserve = nReserve;
+    }
+    if( nReserve==0 ) break;
+    nReserve = 0;
+  }while( 1 );
+
+  p->detected_pgsz = pgsz;
+  sqlite3_free(aPg);
+  return rc;
+}
+
+/*
+** The xRead() method of the wrapper VFS. This is used to intercept calls
+** to read page 1 of the input database.
+*/
+static int recoverVfsRead(sqlite3_file *pFd, void *aBuf, int nByte, i64 iOff){
+  int rc = SQLITE_OK;
+  if( pFd->pMethods==&recover_methods ){
+    pFd->pMethods = recover_g.pMethods;
+    rc = pFd->pMethods->xRead(pFd, aBuf, nByte, iOff);
+    if( nByte==16 ){
+      sqlite3_randomness(16, aBuf);
+    }else
+    if( rc==SQLITE_OK && iOff==0 && nByte>=108 ){
+      /* Ensure that the database has a valid header file. The only fields
+      ** that really matter to recovery are:
+      **
+      **   + Database page size (16-bits at offset 16)
+      **   + Size of db in pages (32-bits at offset 28)
+      **   + Database encoding (32-bits at offset 56)
+      **
+      ** Also preserved are:
+      **
+      **   + first freelist page (32-bits at offset 32)
+      **   + size of freelist (32-bits at offset 36)
+      **   + the wal-mode flags (16-bits at offset 18)
+      **
+      ** We also try to preserve the auto-vacuum, incr-value, user-version
+      ** and application-id fields - all 32 bit quantities at offsets 
+      ** 52, 60, 64 and 68. All other fields are set to known good values.
+      **
+      ** Byte offset 105 should also contain the page-size as a 16-bit 
+      ** integer.
+      */
+      const int aPreserve[] = {32, 36, 52, 60, 64, 68};
+      u8 aHdr[108] = {
+        0x53, 0x51, 0x4c, 0x69, 0x74, 0x65, 0x20, 0x66, 
+        0x6f, 0x72, 0x6d, 0x61, 0x74, 0x20, 0x33, 0x00,
+        0xFF, 0xFF, 0x01, 0x01, 0x00, 0x40, 0x20, 0x20,
+        0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF,
+        0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04,
+        0x00, 0x00, 0x10, 0x00, 0xFF, 0xFF, 0xFF, 0xFF,
+        0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+        0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x2e, 0x5b, 0x30,
+
+        0x0D, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0x00
+      };
+      u8 *a = (u8*)aBuf;
+
+      u32 pgsz = recoverGetU16(&a[16]);
+      u32 nReserve = a[20];
+      u32 enc = recoverGetU32(&a[56]);
+      u32 dbsz = 0;
+      i64 dbFileSize = 0;
+      int ii;
+      sqlite3_recover *p = recover_g.p;
+
+      if( pgsz==0x01 ) pgsz = 65536;
+      rc = pFd->pMethods->xFileSize(pFd, &dbFileSize);
+
+      if( rc==SQLITE_OK && p->detected_pgsz==0 ){
+        rc = recoverVfsDetectPagesize(p, pFd, nReserve, dbFileSize);
+      }
+      if( p->detected_pgsz ){
+        pgsz = p->detected_pgsz;
+        nReserve = p->nReserve;
+      }
+
+      if( pgsz ){
+        dbsz = dbFileSize / pgsz;
+      }
+      if( enc!=SQLITE_UTF8 && enc!=SQLITE_UTF16BE && enc!=SQLITE_UTF16LE ){
+        enc = SQLITE_UTF8;
+      }
+
+      sqlite3_free(p->pPage1Cache);
+      p->pPage1Cache = 0;
+      p->pPage1Disk = 0;
+
+      p->pgsz = nByte;
+      p->pPage1Cache = (u8*)recoverMalloc(p, nByte*2);
+      if( p->pPage1Cache ){
+        p->pPage1Disk = &p->pPage1Cache[nByte];
+        memcpy(p->pPage1Disk, aBuf, nByte);
+        aHdr[18] = a[18];
+        aHdr[19] = a[19];
+        recoverPutU32(&aHdr[28], dbsz);
+        recoverPutU32(&aHdr[56], enc);
+        recoverPutU16(&aHdr[105], pgsz-nReserve);
+        if( pgsz==65536 ) pgsz = 1;
+        recoverPutU16(&aHdr[16], pgsz);
+        aHdr[20] = nReserve;
+        for(ii=0; ii<(int)(sizeof(aPreserve)/sizeof(aPreserve[0])); ii++){
+          memcpy(&aHdr[aPreserve[ii]], &a[aPreserve[ii]], 4);
+        }
+        memcpy(aBuf, aHdr, sizeof(aHdr));
+        memset(&((u8*)aBuf)[sizeof(aHdr)], 0, nByte-sizeof(aHdr));
+
+        memcpy(p->pPage1Cache, aBuf, nByte);
+      }else{
+        rc = p->errCode;
+      }
+
+    }
+    pFd->pMethods = &recover_methods;
+  }else{
+    rc = pFd->pMethods->xRead(pFd, aBuf, nByte, iOff);
+  }
+  return rc;
+}
+
+/*
+** Used to make sqlite3_io_methods wrapper methods less verbose.
+*/
+#define RECOVER_VFS_WRAPPER(code)                         \
+  int rc = SQLITE_OK;                                     \
+  if( pFd->pMethods==&recover_methods ){                  \
+    pFd->pMethods = recover_g.pMethods;                   \
+    rc = code;                                            \
+    pFd->pMethods = &recover_methods;                     \
+  }else{                                                  \
+    rc = code;                                            \
+  }                                                       \
+  return rc;                                              
+
+/*
+** Methods of the wrapper VFS. All methods except for xRead() and xClose()
+** simply uninstall the sqlite3_io_methods wrapper, invoke the equivalent
+** method on the lower level VFS, then reinstall the wrapper before returning.
+** Those that return an integer value use the RECOVER_VFS_WRAPPER macro.
+*/
+static int recoverVfsWrite(
+  sqlite3_file *pFd, const void *aBuf, int nByte, i64 iOff
+){
+  RECOVER_VFS_WRAPPER (
+      pFd->pMethods->xWrite(pFd, aBuf, nByte, iOff)
+  );
+}
+static int recoverVfsTruncate(sqlite3_file *pFd, sqlite3_int64 size){
+  RECOVER_VFS_WRAPPER (
+      pFd->pMethods->xTruncate(pFd, size)
+  );
+}
+static int recoverVfsSync(sqlite3_file *pFd, int flags){
+  RECOVER_VFS_WRAPPER (
+      pFd->pMethods->xSync(pFd, flags)
+  );
+}
+static int recoverVfsFileSize(sqlite3_file *pFd, sqlite3_int64 *pSize){
+  RECOVER_VFS_WRAPPER (
+      pFd->pMethods->xFileSize(pFd, pSize)
+  );
+}
+static int recoverVfsLock(sqlite3_file *pFd, int eLock){
+  RECOVER_VFS_WRAPPER (
+      pFd->pMethods->xLock(pFd, eLock)
+  );
+}
+static int recoverVfsUnlock(sqlite3_file *pFd, int eLock){
+  RECOVER_VFS_WRAPPER (
+      pFd->pMethods->xUnlock(pFd, eLock)
+  );
+}
+static int recoverVfsCheckReservedLock(sqlite3_file *pFd, int *pResOut){
+  RECOVER_VFS_WRAPPER (
+      pFd->pMethods->xCheckReservedLock(pFd, pResOut)
+  );
+}
+static int recoverVfsFileControl(sqlite3_file *pFd, int op, void *pArg){
+  RECOVER_VFS_WRAPPER (
+    (pFd->pMethods ?  pFd->pMethods->xFileControl(pFd, op, pArg) : SQLITE_NOTFOUND)
+  );
+}
+static int recoverVfsSectorSize(sqlite3_file *pFd){
+  RECOVER_VFS_WRAPPER (
+      pFd->pMethods->xSectorSize(pFd)
+  );
+}
+static int recoverVfsDeviceCharacteristics(sqlite3_file *pFd){
+  RECOVER_VFS_WRAPPER (
+      pFd->pMethods->xDeviceCharacteristics(pFd)
+  );
+}
+static int recoverVfsShmMap(
+  sqlite3_file *pFd, int iPg, int pgsz, int bExtend, void volatile **pp
+){
+  RECOVER_VFS_WRAPPER (
+      pFd->pMethods->xShmMap(pFd, iPg, pgsz, bExtend, pp)
+  );
+}
+static int recoverVfsShmLock(sqlite3_file *pFd, int offset, int n, int flags){
+  RECOVER_VFS_WRAPPER (
+      pFd->pMethods->xShmLock(pFd, offset, n, flags)
+  );
+}
+static void recoverVfsShmBarrier(sqlite3_file *pFd){
+  if( pFd->pMethods==&recover_methods ){
+    pFd->pMethods = recover_g.pMethods;
+    pFd->pMethods->xShmBarrier(pFd);
+    pFd->pMethods = &recover_methods;
+  }else{
+    pFd->pMethods->xShmBarrier(pFd);
+  }
+}
+static int recoverVfsShmUnmap(sqlite3_file *pFd, int deleteFlag){
+  RECOVER_VFS_WRAPPER (
+      pFd->pMethods->xShmUnmap(pFd, deleteFlag)
+  );
+}
+
+static int recoverVfsFetch(
+  sqlite3_file *pFd, 
+  sqlite3_int64 iOff, 
+  int iAmt, 
+  void **pp
+){
+  (void)pFd;
+  (void)iOff;
+  (void)iAmt;
+  *pp = 0;
+  return SQLITE_OK;
+}
+static int recoverVfsUnfetch(sqlite3_file *pFd, sqlite3_int64 iOff, void *p){
+  (void)pFd;
+  (void)iOff;
+  (void)p;
+  return SQLITE_OK;
+}
+
+/*
+** Install the VFS wrapper around the file-descriptor open on the input
+** database for recover handle p. Mutex RECOVER_MUTEX_ID must be held
+** when this function is called.
+*/
+static void recoverInstallWrapper(sqlite3_recover *p){
+  sqlite3_file *pFd = 0;
+  assert( recover_g.pMethods==0 );
+  recoverAssertMutexHeld();
+  sqlite3_file_control(p->dbIn, p->zDb, SQLITE_FCNTL_FILE_POINTER, (void*)&pFd);
+  assert( pFd==0 || pFd->pMethods!=&recover_methods );
+  if( pFd && pFd->pMethods ){
+    int iVersion = 1 + (pFd->pMethods->iVersion>1 && pFd->pMethods->xShmMap!=0);
+    recover_g.pMethods = pFd->pMethods;
+    recover_g.p = p;
+    recover_methods.iVersion = iVersion;
+    pFd->pMethods = &recover_methods;
+  }
+}
+
+/*
+** Uninstall the VFS wrapper that was installed around the file-descriptor open
+** on the input database for recover handle p. Mutex RECOVER_MUTEX_ID must be
+** held when this function is called.
+*/
+static void recoverUninstallWrapper(sqlite3_recover *p){
+  sqlite3_file *pFd = 0;
+  recoverAssertMutexHeld();
+  sqlite3_file_control(p->dbIn, p->zDb,SQLITE_FCNTL_FILE_POINTER,(void*)&pFd);
+  if( pFd && pFd->pMethods ){
+    pFd->pMethods = recover_g.pMethods;
+    recover_g.pMethods = 0;
+    recover_g.p = 0;
+  }
+}
+
+/*
+** This function does the work of a single sqlite3_recover_step() call. It
+** is guaranteed that the handle is not in an error state when this
+** function is called.
+*/
+static void recoverStep(sqlite3_recover *p){
+  assert( p && p->errCode==SQLITE_OK );
+  switch( p->eState ){
+    case RECOVER_STATE_INIT:
+      /* This is the very first call to sqlite3_recover_step() on this object.
+      */
+      recoverSqlCallback(p, "BEGIN");
+      recoverSqlCallback(p, "PRAGMA writable_schema = on");
+
+      recoverEnterMutex();
+      recoverInstallWrapper(p);
+
+      /* Open the output database. And register required virtual tables and 
+      ** user functions with the new handle. */
+      recoverOpenOutput(p);
+
+      /* Open transactions on both the input and output databases. */
+      sqlite3_file_control(p->dbIn, p->zDb, SQLITE_FCNTL_RESET_CACHE, 0);
+      recoverExec(p, p->dbIn, "PRAGMA writable_schema = on");
+      recoverExec(p, p->dbIn, "BEGIN");
+      if( p->errCode==SQLITE_OK ) p->bCloseTransaction = 1;
+      recoverExec(p, p->dbIn, "SELECT 1 FROM sqlite_schema");
+      recoverTransferSettings(p);
+      recoverOpenRecovery(p);
+      recoverCacheSchema(p);
+
+      recoverUninstallWrapper(p);
+      recoverLeaveMutex();
+
+      recoverExec(p, p->dbOut, "BEGIN");
+
+      recoverWriteSchema1(p);
+      p->eState = RECOVER_STATE_WRITING;
+      break;
+      
+    case RECOVER_STATE_WRITING: {
+      if( p->w1.pTbls==0 ){
+        recoverWriteDataInit(p);
+      }
+      if( SQLITE_DONE==recoverWriteDataStep(p) ){
+        recoverWriteDataCleanup(p);
+        if( p->zLostAndFound ){
+          p->eState = RECOVER_STATE_LOSTANDFOUND1;
+        }else{
+          p->eState = RECOVER_STATE_SCHEMA2;
+        }
+      }
+      break;
+    }
+
+    case RECOVER_STATE_LOSTANDFOUND1: {
+      if( p->laf.pUsed==0 ){
+        recoverLostAndFound1Init(p);
+      }
+      if( SQLITE_DONE==recoverLostAndFound1Step(p) ){
+        p->eState = RECOVER_STATE_LOSTANDFOUND2;
+      }
+      break;
+    }
+    case RECOVER_STATE_LOSTANDFOUND2: {
+      if( p->laf.pAllAndParent==0 ){
+        recoverLostAndFound2Init(p);
+      }
+      if( SQLITE_DONE==recoverLostAndFound2Step(p) ){
+        p->eState = RECOVER_STATE_LOSTANDFOUND3;
+      }
+      break;
+    }
+
+    case RECOVER_STATE_LOSTANDFOUND3: {
+      if( p->laf.pInsert==0 ){
+        recoverLostAndFound3Init(p);
+      }
+      if( SQLITE_DONE==recoverLostAndFound3Step(p) ){
+        p->eState = RECOVER_STATE_SCHEMA2;
+      }
+      break;
+    }
+
+    case RECOVER_STATE_SCHEMA2: {
+      int rc = SQLITE_OK;
+
+      recoverWriteSchema2(p);
+      p->eState = RECOVER_STATE_DONE;
+
+      /* If no error has occurred, commit the write transaction on the output
+      ** database. Regardless of whether or not an error has occurred, make
+      ** an attempt to end the read transaction on the input database.  */
+      recoverExec(p, p->dbOut, "COMMIT");
+      rc = sqlite3_exec(p->dbIn, "END", 0, 0, 0);
+      if( p->errCode==SQLITE_OK ) p->errCode = rc;
+
+      recoverSqlCallback(p, "PRAGMA writable_schema = off");
+      recoverSqlCallback(p, "COMMIT");
+      p->eState = RECOVER_STATE_DONE;
+      recoverFinalCleanup(p);
+      break;
+    };
+
+    case RECOVER_STATE_DONE: {
+      /* no-op */
+      break;
+    };
+  }
+}
+
+
+/*
+** This is a worker function that does the heavy lifting for both init
+** functions:
+**
+**     sqlite3_recover_init()
+**     sqlite3_recover_init_sql()
+**
+** All this function does is allocate space for the recover handle and
+** take copies of the input parameters. All the real work is done within
+** sqlite3_recover_run().
+*/
+sqlite3_recover *recoverInit(
+  sqlite3* db, 
+  const char *zDb, 
+  const char *zUri,               /* Output URI for _recover_init() */
+  int (*xSql)(void*, const char*),/* SQL callback for _recover_init_sql() */
+  void *pSqlCtx                   /* Context arg for _recover_init_sql() */
+){
+  sqlite3_recover *pRet = 0;
+  int nDb = 0;
+  int nUri = 0;
+  int nByte = 0;
+
+  if( zDb==0 ){ zDb = "main"; }
+
+  nDb = recoverStrlen(zDb);
+  nUri = recoverStrlen(zUri);
+
+  nByte = sizeof(sqlite3_recover) + nDb+1 + nUri+1;
+  pRet = (sqlite3_recover*)sqlite3_malloc(nByte);
+  if( pRet ){
+    memset(pRet, 0, nByte);
+    pRet->dbIn = db;
+    pRet->zDb = (char*)&pRet[1];
+    pRet->zUri = &pRet->zDb[nDb+1];
+    memcpy(pRet->zDb, zDb, nDb);
+    if( nUri>0 && zUri ) memcpy(pRet->zUri, zUri, nUri);
+    pRet->xSql = xSql;
+    pRet->pSqlCtx = pSqlCtx;
+    pRet->bRecoverRowid = RECOVER_ROWID_DEFAULT;
+  }
+
+  return pRet;
+}
+
+/*
+** Initialize a recovery handle that creates a new database containing
+** the recovered data.
+*/
+sqlite3_recover *sqlite3_recover_init(
+  sqlite3* db, 
+  const char *zDb, 
+  const char *zUri
+){
+  return recoverInit(db, zDb, zUri, 0, 0);
+}
+
+/*
+** Initialize a recovery handle that returns recovered data in the
+** form of SQL statements via a callback.
+*/
+sqlite3_recover *sqlite3_recover_init_sql(
+  sqlite3* db, 
+  const char *zDb, 
+  int (*xSql)(void*, const char*),
+  void *pSqlCtx
+){
+  return recoverInit(db, zDb, 0, xSql, pSqlCtx);
+}
+
+/*
+** Return the handle error message, if any.
+*/
+const char *sqlite3_recover_errmsg(sqlite3_recover *p){
+  return (p && p->errCode!=SQLITE_NOMEM) ? p->zErrMsg : "out of memory";
+}
+
+/*
+** Return the handle error code.
+*/
+int sqlite3_recover_errcode(sqlite3_recover *p){
+  return p ? p->errCode : SQLITE_NOMEM;
+}
+
+/*
+** Configure the handle.
+*/
+int sqlite3_recover_config(sqlite3_recover *p, int op, void *pArg){
+  int rc = SQLITE_OK;
+  if( p==0 ){
+    rc = SQLITE_NOMEM;
+  }else if( p->eState!=RECOVER_STATE_INIT ){
+    rc = SQLITE_MISUSE;
+  }else{
+    switch( op ){
+      case 789:
+        /* This undocumented magic configuration option is used to set the
+        ** name of the auxiliary database that is ATTACH-ed to the database
+        ** connection and used to hold state information during the
+        ** recovery process.  This option is for debugging use only and
+        ** is subject to change or removal at any time. */
+        sqlite3_free(p->zStateDb);
+        p->zStateDb = recoverMPrintf(p, "%s", (char*)pArg);
+        break;
+
+      case SQLITE_RECOVER_LOST_AND_FOUND: {
+        const char *zArg = (const char*)pArg;
+        sqlite3_free(p->zLostAndFound);
+        if( zArg ){
+          p->zLostAndFound = recoverMPrintf(p, "%s", zArg);
+        }else{
+          p->zLostAndFound = 0;
+        }
+        break;
+      }
+
+      case SQLITE_RECOVER_FREELIST_CORRUPT:
+        p->bFreelistCorrupt = *(int*)pArg;
+        break;
+
+      case SQLITE_RECOVER_ROWIDS:
+        p->bRecoverRowid = *(int*)pArg;
+        break;
+
+      case SQLITE_RECOVER_SLOWINDEXES:
+        p->bSlowIndexes = *(int*)pArg;
+        break;
+
+      default:
+        rc = SQLITE_NOTFOUND;
+        break;
+    }
+  }
+
+  return rc;
+}
+
+/*
+** Do a unit of work towards the recovery job. Return SQLITE_OK if
+** no error has occurred but database recovery is not finished, SQLITE_DONE
+** if database recovery has been successfully completed, or an SQLite
+** error code if an error has occurred.
+*/
+int sqlite3_recover_step(sqlite3_recover *p){
+  if( p==0 ) return SQLITE_NOMEM;
+  if( p->errCode==SQLITE_OK ) recoverStep(p);
+  if( p->eState==RECOVER_STATE_DONE && p->errCode==SQLITE_OK ){
+    return SQLITE_DONE;
+  }
+  return p->errCode;
+}
+
+/*
+** Do the configured recovery operation. Return SQLITE_OK if successful, or
+** else an SQLite error code.
+*/
+int sqlite3_recover_run(sqlite3_recover *p){
+  while( SQLITE_OK==sqlite3_recover_step(p) );
+  return sqlite3_recover_errcode(p);
+}
+
+
+/*
+** Free all resources associated with the recover handle passed as the only
+** argument. The results of using a handle with any sqlite3_recover_**
+** API function after it has been passed to this function are undefined.
+**
+** A copy of the value returned by the first call made to sqlite3_recover_run()
+** on this handle is returned, or SQLITE_OK if sqlite3_recover_run() has
+** not been called on this handle.
+*/
+int sqlite3_recover_finish(sqlite3_recover *p){
+  int rc;
+  if( p==0 ){
+    rc = SQLITE_NOMEM;
+  }else{
+    recoverFinalCleanup(p);
+    if( p->bCloseTransaction && sqlite3_get_autocommit(p->dbIn)==0 ){
+      rc = sqlite3_exec(p->dbIn, "END", 0, 0, 0);
+      if( p->errCode==SQLITE_OK ) p->errCode = rc;
+    }
+    rc = p->errCode;
+    sqlite3_free(p->zErrMsg);
+    sqlite3_free(p->zStateDb);
+    sqlite3_free(p->zLostAndFound);
+    sqlite3_free(p->pPage1Cache);
+    sqlite3_free(p);
+  }
+  return rc;
+}
+
+#endif /* ifndef SQLITE_OMIT_VIRTUALTABLE */
diff --git a/ext/recover/sqlite3recover.h b/ext/recover/sqlite3recover.h
new file mode 100644
index 0000000000000000000000000000000000000000..7a1cd1cd878f26d34f2b7aeebc39b0f8059a3735
--- /dev/null
+++ b/ext/recover/sqlite3recover.h
@@ -0,0 +1,249 @@
+/*
+** 2022-08-27
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** This file contains the public interface to the "recover" extension -
+** an SQLite extension designed to recover data from corrupted database
+** files.
+*/
+
+/*
+** OVERVIEW:
+**
+** To use the API to recover data from a corrupted database, an
+** application:
+**
+**   1) Creates an sqlite3_recover handle by calling either
+**      sqlite3_recover_init() or sqlite3_recover_init_sql().
+**
+**   2) Configures the new handle using one or more calls to
+**      sqlite3_recover_config().
+**
+**   3) Executes the recovery by repeatedly calling sqlite3_recover_step() on
+**      the handle until it returns something other than SQLITE_OK. If it
+**      returns SQLITE_DONE, then the recovery operation completed without 
+**      error. If it returns some other non-SQLITE_OK value, then an error 
+**      has occurred.
+**
+**   4) Retrieves any error code and English language error message using the
+**      sqlite3_recover_errcode() and sqlite3_recover_errmsg() APIs,
+**      respectively.
+**
+**   5) Destroys the sqlite3_recover handle and frees all resources
+**      using sqlite3_recover_finish().
+**
+** The application may abandon the recovery operation at any point 
+** before it is finished by passing the sqlite3_recover handle to
+** sqlite3_recover_finish(). This is not an error, but the final state
+** of the output database, or the results of running the partial script
+** delivered to the SQL callback, are undefined.
+*/
+
+#ifndef _SQLITE_RECOVER_H
+#define _SQLITE_RECOVER_H
+
+#include "sqlite3.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+** An instance of the sqlite3_recover object represents a recovery
+** operation in progress.
+**
+** Constructors:
+**
+**    sqlite3_recover_init()
+**    sqlite3_recover_init_sql()
+**
+** Destructor:
+**
+**    sqlite3_recover_finish()
+**
+** Methods:
+**
+**    sqlite3_recover_config()
+**    sqlite3_recover_errcode()
+**    sqlite3_recover_errmsg()
+**    sqlite3_recover_run()
+**    sqlite3_recover_step()
+*/
+typedef struct sqlite3_recover sqlite3_recover;
+
+/* 
+** These two APIs attempt to create and return a new sqlite3_recover object.
+** In both cases the first two arguments identify the (possibly
+** corrupt) database to recover data from. The first argument is an open
+** database handle and the second the name of a database attached to that
+** handle (i.e. "main", "temp" or the name of an attached database).
+**
+** If sqlite3_recover_init() is used to create the new sqlite3_recover
+** handle, then data is recovered into a new database, identified by
+** string parameter zUri. zUri may be an absolute or relative file path,
+** or may be an SQLite URI. If the identified database file already exists,
+** it is overwritten.
+**
+** If sqlite3_recover_init_sql() is invoked, then any recovered data will
+** be returned to the user as a series of SQL statements. Executing these
+** SQL statements results in the same database as would have been created
+** had sqlite3_recover_init() been used. For each SQL statement in the
+** output, the callback function passed as the third argument (xSql) is 
+** invoked once. The first parameter is a passed a copy of the fourth argument
+** to this function (pCtx) as its first parameter, and a pointer to a
+** nul-terminated buffer containing the SQL statement formated as UTF-8 as 
+** the second. If the xSql callback returns any value other than SQLITE_OK,
+** then processing is immediately abandoned and the value returned used as
+** the recover handle error code (see below).
+**
+** If an out-of-memory error occurs, NULL may be returned instead of
+** a valid handle. In all other cases, it is the responsibility of the
+** application to avoid resource leaks by ensuring that
+** sqlite3_recover_finish() is called on all allocated handles.
+*/
+sqlite3_recover *sqlite3_recover_init(
+  sqlite3* db, 
+  const char *zDb, 
+  const char *zUri
+);
+sqlite3_recover *sqlite3_recover_init_sql(
+  sqlite3* db, 
+  const char *zDb, 
+  int (*xSql)(void*, const char*),
+  void *pCtx
+);
+
+/*
+** Configure an sqlite3_recover object that has just been created using
+** sqlite3_recover_init() or sqlite3_recover_init_sql(). This function
+** may only be called before the first call to sqlite3_recover_step()
+** or sqlite3_recover_run() on the object.
+**
+** The second argument passed to this function must be one of the
+** SQLITE_RECOVER_* symbols defined below. Valid values for the third argument
+** depend on the specific SQLITE_RECOVER_* symbol in use.
+**
+** SQLITE_OK is returned if the configuration operation was successful,
+** or an SQLite error code otherwise.
+*/
+int sqlite3_recover_config(sqlite3_recover*, int op, void *pArg);
+
+/*
+** SQLITE_RECOVER_LOST_AND_FOUND:
+**   The pArg argument points to a string buffer containing the name
+**   of a "lost-and-found" table in the output database, or NULL. If
+**   the argument is non-NULL and the database contains seemingly
+**   valid pages that cannot be associated with any table in the
+**   recovered part of the schema, data is extracted from these
+**   pages to add to the lost-and-found table.
+**
+** SQLITE_RECOVER_FREELIST_CORRUPT:
+**   The pArg value must actually be a pointer to a value of type
+**   int containing value 0 or 1 cast as a (void*). If this option is set
+**   (argument is 1) and a lost-and-found table has been configured using
+**   SQLITE_RECOVER_LOST_AND_FOUND, then is assumed that the freelist is 
+**   corrupt and an attempt is made to recover records from pages that
+**   appear to be linked into the freelist. Otherwise, pages on the freelist
+**   are ignored. Setting this option can recover more data from the
+**   database, but often ends up "recovering" deleted records. The default 
+**   value is 0 (clear).
+**
+** SQLITE_RECOVER_ROWIDS:
+**   The pArg value must actually be a pointer to a value of type
+**   int containing value 0 or 1 cast as a (void*). If this option is set
+**   (argument is 1), then an attempt is made to recover rowid values
+**   that are not also INTEGER PRIMARY KEY values. If this option is
+**   clear, then new rowids are assigned to all recovered rows. The
+**   default value is 1 (set).
+**
+** SQLITE_RECOVER_SLOWINDEXES:
+**   The pArg value must actually be a pointer to a value of type
+**   int containing value 0 or 1 cast as a (void*). If this option is clear
+**   (argument is 0), then when creating an output database, the recover 
+**   module creates and populates non-UNIQUE indexes right at the end of the
+**   recovery operation - after all recoverable data has been inserted
+**   into the new database. This is faster overall, but means that the
+**   final call to sqlite3_recover_step() for a recovery operation may
+**   be need to create a large number of indexes, which may be very slow.
+**
+**   Or, if this option is set (argument is 1), then non-UNIQUE indexes
+**   are created in the output database before it is populated with 
+**   recovered data. This is slower overall, but avoids the slow call
+**   to sqlite3_recover_step() at the end of the recovery operation.
+**
+**   The default option value is 0.
+*/
+#define SQLITE_RECOVER_LOST_AND_FOUND   1
+#define SQLITE_RECOVER_FREELIST_CORRUPT 2
+#define SQLITE_RECOVER_ROWIDS           3
+#define SQLITE_RECOVER_SLOWINDEXES      4
+
+/*
+** Perform a unit of work towards the recovery operation. This function 
+** must normally be called multiple times to complete database recovery.
+**
+** If no error occurs but the recovery operation is not completed, this
+** function returns SQLITE_OK. If recovery has been completed successfully
+** then SQLITE_DONE is returned. If an error has occurred, then an SQLite
+** error code (e.g. SQLITE_IOERR or SQLITE_NOMEM) is returned. It is not
+** considered an error if some or all of the data cannot be recovered
+** due to database corruption.
+**
+** Once sqlite3_recover_step() has returned a value other than SQLITE_OK,
+** all further such calls on the same recover handle are no-ops that return
+** the same non-SQLITE_OK value.
+*/
+int sqlite3_recover_step(sqlite3_recover*);
+
+/* 
+** Run the recovery operation to completion. Return SQLITE_OK if successful,
+** or an SQLite error code otherwise. Calling this function is the same
+** as executing:
+**
+**     while( SQLITE_OK==sqlite3_recover_step(p) );
+**     return sqlite3_recover_errcode(p);
+*/
+int sqlite3_recover_run(sqlite3_recover*);
+
+/*
+** If an error has been encountered during a prior call to
+** sqlite3_recover_step(), then this function attempts to return a 
+** pointer to a buffer containing an English language explanation of 
+** the error. If no error message is available, or if an out-of memory 
+** error occurs while attempting to allocate a buffer in which to format
+** the error message, NULL is returned.
+**
+** The returned buffer remains valid until the sqlite3_recover handle is
+** destroyed using sqlite3_recover_finish().
+*/
+const char *sqlite3_recover_errmsg(sqlite3_recover*);
+
+/*
+** If this function is called on an sqlite3_recover handle after
+** an error occurs, an SQLite error code is returned. Otherwise, SQLITE_OK.
+*/
+int sqlite3_recover_errcode(sqlite3_recover*);
+
+/* 
+** Clean up a recovery object created by a call to sqlite3_recover_init().
+** The results of using a recovery object with any API after it has been
+** passed to this function are undefined.
+**
+** This function returns the same value as sqlite3_recover_errcode().
+*/
+int sqlite3_recover_finish(sqlite3_recover*);
+
+
+#ifdef __cplusplus
+}  /* end of the 'extern "C"' block */
+#endif
+
+#endif /* ifndef _SQLITE_RECOVER_H */
diff --git a/ext/recover/test_recover.c b/ext/recover/test_recover.c
new file mode 100644
index 0000000000000000000000000000000000000000..c1c0d883866f204651a055bdede9c9e298d158a8
--- /dev/null
+++ b/ext/recover/test_recover.c
@@ -0,0 +1,309 @@
+/*
+** 2022-08-27
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+*/
+
+#include "sqlite3recover.h"
+#include "sqliteInt.h"
+#include "tclsqlite.h"
+#include <assert.h>
+
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+
+typedef struct TestRecover TestRecover;
+struct TestRecover {
+  sqlite3_recover *p;
+  Tcl_Interp *interp;
+  Tcl_Obj *pScript;
+};
+
+static int xSqlCallback(void *pSqlArg, const char *zSql){
+  TestRecover *p = (TestRecover*)pSqlArg;
+  Tcl_Obj *pEval = 0;
+  int res = 0;
+
+  pEval = Tcl_DuplicateObj(p->pScript);
+  Tcl_IncrRefCount(pEval);
+
+  res = Tcl_ListObjAppendElement(p->interp, pEval, Tcl_NewStringObj(zSql, -1));
+  if( res==TCL_OK ){
+    res = Tcl_EvalObjEx(p->interp, pEval, 0);
+  }
+
+  Tcl_DecrRefCount(pEval);
+  if( res ){
+    Tcl_BackgroundError(p->interp);
+    return TCL_ERROR;
+  }else{
+    Tcl_Obj *pObj = Tcl_GetObjResult(p->interp);
+    if( Tcl_GetCharLength(pObj)==0 ){
+      res = 0;
+    }else if( Tcl_GetIntFromObj(p->interp, pObj, &res) ){
+      Tcl_BackgroundError(p->interp);
+      return TCL_ERROR;
+    }
+  }
+  return res;
+}
+
+static int getDbPointer(Tcl_Interp *interp, Tcl_Obj *pObj, sqlite3 **pDb){
+  Tcl_CmdInfo info;
+  if( 0==Tcl_GetCommandInfo(interp, Tcl_GetString(pObj), &info) ){
+    Tcl_AppendResult(interp, "no such handle: ", Tcl_GetString(pObj), 0);
+    return TCL_ERROR;
+  }
+  *pDb = *(sqlite3 **)info.objClientData;
+  return TCL_OK;
+}
+
+/*
+** Implementation of the command created by [sqlite3_recover_init]:
+**
+**     $cmd config OP ARG
+**     $cmd run
+**     $cmd errmsg
+**     $cmd errcode
+**     $cmd finalize
+*/
+static int testRecoverCmd(
+  void *clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  static struct RecoverSub {
+    const char *zSub;
+    int nArg;
+    const char *zMsg;
+  } aSub[] = {
+    { "config",    2, "ARG"         }, /* 0 */
+    { "run",      0, ""             }, /* 1 */
+    { "errmsg",    0, ""            }, /* 2 */
+    { "errcode",   0, ""            }, /* 3 */
+    { "finish",  0, ""              }, /* 4 */
+    { "step",  0, ""                }, /* 5 */
+    { 0 }
+  };
+  int rc = TCL_OK;
+  int iSub = 0;
+  TestRecover *pTest = (TestRecover*)clientData;
+
+  if( objc<2 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "SUBCOMMAND ...");
+    return TCL_ERROR;
+  }
+  rc = Tcl_GetIndexFromObjStruct(interp, 
+      objv[1], aSub, sizeof(aSub[0]), "sub-command", 0, &iSub
+  );
+  if( rc!=TCL_OK ) return rc;
+  if( (objc-2)!=aSub[iSub].nArg ){
+    Tcl_WrongNumArgs(interp, 2, objv, aSub[iSub].zMsg);
+    return TCL_ERROR;
+  }
+
+  switch( iSub ){
+    case 0:  assert( sqlite3_stricmp("config", aSub[iSub].zSub)==0 ); {
+      const char *aOp[] = {
+        "testdb",          /* 0 */
+        "lostandfound",    /* 1 */
+        "freelistcorrupt", /* 2 */
+        "rowids",          /* 3 */
+        "slowindexes",     /* 4 */
+        "invalid",         /* 5 */
+        0
+      };
+      int iOp = 0;
+      int res = 0;
+      if( Tcl_GetIndexFromObj(interp, objv[2], aOp, "option", 0, &iOp) ){
+        return TCL_ERROR;
+      }
+      switch( iOp ){
+        case 0:
+          res = sqlite3_recover_config(pTest->p, 
+              789, (void*)Tcl_GetString(objv[3]) /* MAGIC NUMBER! */
+          );
+          break;
+        case 1: {
+          const char *zStr = Tcl_GetString(objv[3]);
+          res = sqlite3_recover_config(pTest->p, 
+              SQLITE_RECOVER_LOST_AND_FOUND, (void*)(zStr[0] ? zStr : 0)
+          );
+          break;
+        }
+        case 2: {
+          int iVal = 0;
+          if( Tcl_GetBooleanFromObj(interp, objv[3], &iVal) ) return TCL_ERROR;
+          res = sqlite3_recover_config(pTest->p, 
+              SQLITE_RECOVER_FREELIST_CORRUPT, (void*)&iVal
+          );
+          break;
+        }
+        case 3: {
+          int iVal = 0;
+          if( Tcl_GetBooleanFromObj(interp, objv[3], &iVal) ) return TCL_ERROR;
+          res = sqlite3_recover_config(pTest->p, 
+              SQLITE_RECOVER_ROWIDS, (void*)&iVal
+          );
+          break;
+        }
+        case 4: {
+          int iVal = 0;
+          if( Tcl_GetBooleanFromObj(interp, objv[3], &iVal) ) return TCL_ERROR;
+          res = sqlite3_recover_config(pTest->p, 
+              SQLITE_RECOVER_SLOWINDEXES, (void*)&iVal
+          );
+          break;
+        }
+        case 5: {
+          res = sqlite3_recover_config(pTest->p, 12345, 0);
+          break;
+        }
+      }
+      Tcl_SetObjResult(interp, Tcl_NewIntObj(res));
+      break;
+    }
+    case 1:  assert( sqlite3_stricmp("run", aSub[iSub].zSub)==0 ); {
+      int res = sqlite3_recover_run(pTest->p);
+      Tcl_SetObjResult(interp, Tcl_NewIntObj(res));
+      break;
+    }
+    case 2:  assert( sqlite3_stricmp("errmsg", aSub[iSub].zSub)==0 ); {
+      const char *zErr = sqlite3_recover_errmsg(pTest->p);
+      Tcl_SetObjResult(interp, Tcl_NewStringObj(zErr, -1));
+      break;
+    }
+    case 3:  assert( sqlite3_stricmp("errcode", aSub[iSub].zSub)==0 ); {
+      int errCode = sqlite3_recover_errcode(pTest->p);
+      Tcl_SetObjResult(interp, Tcl_NewIntObj(errCode));
+      break;
+    }
+    case 4:  assert( sqlite3_stricmp("finish", aSub[iSub].zSub)==0 ); {
+      int res = sqlite3_recover_errcode(pTest->p);
+      int res2;
+      if( res!=SQLITE_OK ){
+        const char *zErr = sqlite3_recover_errmsg(pTest->p);
+        Tcl_SetObjResult(interp, Tcl_NewStringObj(zErr, -1));
+      }
+      res2 = sqlite3_recover_finish(pTest->p);
+      assert( res2==res );
+      if( res ) return TCL_ERROR;
+      break;
+    }
+    case 5:  assert( sqlite3_stricmp("step", aSub[iSub].zSub)==0 ); {
+      int res = sqlite3_recover_step(pTest->p);
+      Tcl_SetObjResult(interp, Tcl_NewIntObj(res));
+      break;
+    }
+  }
+
+  return TCL_OK;
+}
+
+/*
+** sqlite3_recover_init DB DBNAME URI
+*/
+static int test_sqlite3_recover_init(
+  void *clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  static int iTestRecoverCmd = 1;
+
+  TestRecover *pNew = 0;
+  sqlite3 *db = 0;
+  const char *zDb = 0;
+  const char *zUri = 0;
+  char zCmd[128];
+  int bSql = clientData ? 1 : 0;
+
+  if( objc!=4 ){
+    const char *zErr = (bSql ? "DB DBNAME SCRIPT" : "DB DBNAME URI");
+    Tcl_WrongNumArgs(interp, 1, objv, zErr);
+    return TCL_ERROR;
+  }
+  if( getDbPointer(interp, objv[1], &db) ) return TCL_ERROR;
+  zDb = Tcl_GetString(objv[2]);
+  if( zDb[0]=='\0' ) zDb = 0;
+
+  pNew = (TestRecover*)ckalloc(sizeof(TestRecover));
+  if( bSql==0 ){
+    zUri = Tcl_GetString(objv[3]);
+    pNew->p = sqlite3_recover_init(db, zDb, zUri);
+  }else{
+    pNew->interp = interp;
+    pNew->pScript = objv[3];
+    Tcl_IncrRefCount(pNew->pScript);
+    pNew->p = sqlite3_recover_init_sql(db, zDb, xSqlCallback, (void*)pNew);
+  }
+
+  sprintf(zCmd, "sqlite_recover%d", iTestRecoverCmd++);
+  Tcl_CreateObjCommand(interp, zCmd, testRecoverCmd, (void*)pNew, 0);
+
+  Tcl_SetObjResult(interp, Tcl_NewStringObj(zCmd, -1));
+  return TCL_OK;
+}
+
+/*
+** Declaration for public API function in file dbdata.c. This may be called
+** with NULL as the final two arguments to register the sqlite_dbptr and
+** sqlite_dbdata virtual tables with a database handle.
+*/
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_dbdata_init(sqlite3*, char**, const sqlite3_api_routines*);
+
+/*
+** sqlite3_recover_init DB DBNAME URI
+*/
+static int test_sqlite3_dbdata_init(
+  void *clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  sqlite3 *db = 0;
+
+  if( objc!=2 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "DB");
+    return TCL_ERROR;
+  }
+  if( getDbPointer(interp, objv[1], &db) ) return TCL_ERROR;
+  sqlite3_dbdata_init(db, 0, 0);
+
+  Tcl_ResetResult(interp);
+  return TCL_OK;
+}
+
+#endif /* SQLITE_OMIT_VIRTUALTABLE */
+
+int TestRecover_Init(Tcl_Interp *interp){
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+  struct Cmd {
+    const char *zCmd;
+    Tcl_ObjCmdProc *xProc;
+    void *pArg;
+  } aCmd[] = {
+    { "sqlite3_recover_init", test_sqlite3_recover_init, 0 },
+    { "sqlite3_recover_init_sql", test_sqlite3_recover_init, (void*)1 },
+    { "sqlite3_dbdata_init", test_sqlite3_dbdata_init, (void*)1 },
+  };
+  int i;
+
+  for(i=0; i<sizeof(aCmd)/sizeof(struct Cmd); i++){
+    struct Cmd *p = &aCmd[i];
+    Tcl_CreateObjCommand(interp, p->zCmd, p->xProc, p->pArg, 0);
+  }
+#endif
+  return TCL_OK;
+}
diff --git a/ext/repair/README.md b/ext/repair/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..927ceb7c4400745738b957bbcc582b2aa7790060
--- /dev/null
+++ b/ext/repair/README.md
@@ -0,0 +1,16 @@
+This folder contains extensions and utility programs intended to analyze
+live database files, detect problems, and possibly fix them.
+
+As SQLite is being used on larger and larger databases, database sizes
+are growing into the terabyte range.  At that size, hardware malfunctions
+and/or cosmic rays will occasionally corrupt a database file.  Detecting 
+problems and fixing errors a terabyte-sized databases can take hours or days,
+and it is undesirable to take applications that depend on the databases 
+off-line for such a long time.
+The utilities in the folder are intended to provide mechanisms for
+detecting and fixing problems in large databases while those databases
+are in active use.
+
+The utilities and extensions in this folder are experimental and under
+active development at the time of this writing (2017-10-12).  If and when
+they stabilize, this README will be updated to reflect that fact.
diff --git a/ext/repair/checkfreelist.c b/ext/repair/checkfreelist.c
new file mode 100644
index 0000000000000000000000000000000000000000..d1d3d540748c0af980b9041ee966b68b581a42d2
--- /dev/null
+++ b/ext/repair/checkfreelist.c
@@ -0,0 +1,310 @@
+/*
+** 2017 October 11
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** This module exports a single C function:
+**
+**   int sqlite3_check_freelist(sqlite3 *db, const char *zDb);
+**
+** This function checks the free-list in database zDb (one of "main", 
+** "temp", etc.) and reports any errors by invoking the sqlite3_log()
+** function. It returns SQLITE_OK if successful, or an SQLite error
+** code otherwise. It is not an error if the free-list is corrupted but
+** no IO or OOM errors occur.
+**
+** If this file is compiled and loaded as an SQLite loadable extension,
+** it adds an SQL function "checkfreelist" to the database handle, to
+** be invoked as follows:
+**
+**   SELECT checkfreelist(<database-name>);
+**
+** This function performs the same checks as sqlite3_check_freelist(),
+** except that it returns all error messages as a single text value,
+** separated by newline characters. If the freelist is not corrupted
+** in any way, an empty string is returned.
+**
+** To compile this module for use as an SQLite loadable extension:
+**
+**   gcc -Os -fPIC -shared checkfreelist.c -o checkfreelist.so
+*/
+
+#include "sqlite3ext.h"
+SQLITE_EXTENSION_INIT1
+
+#ifndef SQLITE_AMALGAMATION
+# include <string.h>
+# include <stdio.h>
+# include <stdlib.h>
+# include <assert.h>
+# if defined(SQLITE_COVERAGE_TEST) || defined(SQLITE_MUTATION_TEST)
+#   define SQLITE_OMIT_AUXILIARY_SAFETY_CHECKS 1
+# endif
+# if defined(SQLITE_OMIT_AUXILIARY_SAFETY_CHECKS)
+#   define ALWAYS(X)      (1)
+#   define NEVER(X)       (0)
+# elif !defined(NDEBUG)
+#   define ALWAYS(X)      ((X)?1:(assert(0),0))
+#   define NEVER(X)       ((X)?(assert(0),1):0)
+# else
+#   define ALWAYS(X)      (X)
+#   define NEVER(X)       (X)
+# endif
+  typedef unsigned char u8;
+  typedef unsigned short u16;
+  typedef unsigned int u32;
+#define get4byte(x) (        \
+    ((u32)((x)[0])<<24) +    \
+    ((u32)((x)[1])<<16) +    \
+    ((u32)((x)[2])<<8) +     \
+    ((u32)((x)[3]))          \
+)
+#endif
+
+/*
+** Execute a single PRAGMA statement and return the integer value returned
+** via output parameter (*pnOut).
+**
+** The SQL statement passed as the third argument should be a printf-style
+** format string containing a single "%s" which will be replace by the
+** value passed as the second argument. e.g.
+**
+**   sqlGetInteger(db, "main", "PRAGMA %s.page_count", pnOut)
+**
+** executes "PRAGMA main.page_count" and stores the results in (*pnOut).
+*/
+static int sqlGetInteger(
+  sqlite3 *db,                    /* Database handle */
+  const char *zDb,                /* Database name ("main", "temp" etc.) */
+  const char *zFmt,               /* SQL statement format */
+  u32 *pnOut                      /* OUT: Integer value */
+){
+  int rc, rc2;
+  char *zSql;
+  sqlite3_stmt *pStmt = 0;
+  int bOk = 0;
+
+  zSql = sqlite3_mprintf(zFmt, zDb);
+  if( zSql==0 ){
+    rc = SQLITE_NOMEM;
+  }else{
+    rc = sqlite3_prepare_v2(db, zSql, -1, &pStmt, 0);
+    sqlite3_free(zSql);
+  }
+
+  if( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pStmt) ){
+    *pnOut = (u32)sqlite3_column_int(pStmt, 0);
+    bOk = 1;
+  }
+
+  rc2 = sqlite3_finalize(pStmt);
+  if( rc==SQLITE_OK ) rc = rc2;
+  if( rc==SQLITE_OK && bOk==0 ) rc = SQLITE_ERROR;
+  return rc;
+}
+
+/*
+** Argument zFmt must be a printf-style format string and must be 
+** followed by its required arguments. If argument pzOut is NULL, 
+** then the results of printf()ing the format string are passed to
+** sqlite3_log(). Otherwise, they are appended to the string
+** at (*pzOut).
+*/
+static int checkFreelistError(char **pzOut, const char *zFmt, ...){
+  int rc = SQLITE_OK;
+  char *zErr = 0;
+  va_list ap;
+
+  va_start(ap, zFmt);
+  zErr = sqlite3_vmprintf(zFmt, ap);
+  if( zErr==0 ){
+    rc = SQLITE_NOMEM;
+  }else{
+    if( pzOut ){
+      *pzOut = sqlite3_mprintf("%s%z%s", *pzOut?"\n":"", *pzOut, zErr);
+      if( *pzOut==0 ) rc = SQLITE_NOMEM;
+    }else{
+      sqlite3_log(SQLITE_ERROR, "checkfreelist: %s", zErr);
+    }
+    sqlite3_free(zErr);
+  }
+  va_end(ap);
+  return rc;
+}
+
+static int checkFreelist(
+  sqlite3 *db, 
+  const char *zDb,
+  char **pzOut
+){
+  /* This query returns one row for each page on the free list. Each row has
+  ** two columns - the page number and page content.  */
+  const char *zTrunk = 
+    "WITH freelist_trunk(i, d, n) AS ("
+      "SELECT 1, NULL, sqlite_readint32(data, 32) "
+      "FROM sqlite_dbpage(:1) WHERE pgno=1 "
+        "UNION ALL "
+      "SELECT n, data, sqlite_readint32(data) "
+      "FROM freelist_trunk, sqlite_dbpage(:1) WHERE pgno=n "
+    ")"
+    "SELECT i, d FROM freelist_trunk WHERE i!=1;";
+
+  int rc, rc2;                    /* Return code */
+  sqlite3_stmt *pTrunk = 0;       /* Compilation of zTrunk */
+  u32 nPage = 0;                  /* Number of pages in db */
+  u32 nExpected = 0;              /* Expected number of free pages */
+  u32 nFree = 0;                  /* Number of pages on free list */
+
+  if( zDb==0 ) zDb = "main";
+
+  if( (rc = sqlGetInteger(db, zDb, "PRAGMA %s.page_count", &nPage))
+   || (rc = sqlGetInteger(db, zDb, "PRAGMA %s.freelist_count", &nExpected))
+  ){
+    return rc;
+  }
+
+  rc = sqlite3_prepare_v2(db, zTrunk, -1, &pTrunk, 0);
+  if( rc!=SQLITE_OK ) return rc;
+  sqlite3_bind_text(pTrunk, 1, zDb, -1, SQLITE_STATIC);
+  while( rc==SQLITE_OK && sqlite3_step(pTrunk)==SQLITE_ROW ){
+    u32 i;
+    u32 iTrunk = (u32)sqlite3_column_int(pTrunk, 0);
+    const u8 *aData = (const u8*)sqlite3_column_blob(pTrunk, 1);
+    u32 nData = (u32)sqlite3_column_bytes(pTrunk, 1);
+    u32 iNext = get4byte(&aData[0]);
+    u32 nLeaf = get4byte(&aData[4]);
+
+    if( nLeaf>((nData/4)-2-6) ){
+      rc = checkFreelistError(pzOut, 
+          "leaf count out of range (%d) on trunk page %d", 
+          (int)nLeaf, (int)iTrunk
+      );
+      nLeaf = (nData/4) - 2 - 6;
+    }
+
+    nFree += 1+nLeaf;
+    if( iNext>nPage ){
+      rc = checkFreelistError(pzOut, 
+          "trunk page %d is out of range", (int)iNext
+      );
+    }
+
+    for(i=0; rc==SQLITE_OK && i<nLeaf; i++){
+      u32 iLeaf = get4byte(&aData[8 + 4*i]);
+      if( iLeaf==0 || iLeaf>nPage ){
+        rc = checkFreelistError(pzOut,
+            "leaf page %d is out of range (child %d of trunk page %d)", 
+            (int)iLeaf, (int)i, (int)iTrunk
+        );
+      }
+    }
+  }
+
+  if( rc==SQLITE_OK && nFree!=nExpected ){
+    rc = checkFreelistError(pzOut,
+        "free-list count mismatch: actual=%d header=%d", 
+        (int)nFree, (int)nExpected
+    );
+  }
+
+  rc2 = sqlite3_finalize(pTrunk);
+  if( rc==SQLITE_OK ) rc = rc2;
+  return rc;
+}
+
+int sqlite3_check_freelist(sqlite3 *db, const char *zDb){
+  return checkFreelist(db, zDb, 0);
+}
+
+static void checkfreelist_function(
+  sqlite3_context *pCtx,
+  int nArg,
+  sqlite3_value **apArg
+){
+  const char *zDb;
+  int rc;
+  char *zOut = 0;
+  sqlite3 *db = sqlite3_context_db_handle(pCtx);
+
+  assert( nArg==1 );
+  zDb = (const char*)sqlite3_value_text(apArg[0]);
+  rc = checkFreelist(db, zDb, &zOut);
+  if( rc==SQLITE_OK ){
+    sqlite3_result_text(pCtx, zOut?zOut:"ok", -1, SQLITE_TRANSIENT);
+  }else{
+    sqlite3_result_error_code(pCtx, rc);
+  }
+
+  sqlite3_free(zOut);
+}
+
+/*
+** An SQL function invoked as follows:
+**
+**   sqlite_readint32(BLOB)           -- Decode 32-bit integer from start of blob
+*/
+static void readint_function(
+  sqlite3_context *pCtx,
+  int nArg,
+  sqlite3_value **apArg
+){
+  const u8 *zBlob;
+  int nBlob;
+  int iOff = 0;
+  u32 iRet = 0;
+
+  if( nArg!=1 && nArg!=2 ){
+    sqlite3_result_error(
+        pCtx, "wrong number of arguments to function sqlite_readint32()", -1
+    );
+    return;
+  }
+  if( nArg==2 ){
+    iOff = sqlite3_value_int(apArg[1]);
+  }
+
+  zBlob = sqlite3_value_blob(apArg[0]);
+  nBlob = sqlite3_value_bytes(apArg[0]);
+
+  if( nBlob>=(iOff+4) ){
+    iRet = get4byte(&zBlob[iOff]);
+  }
+
+  sqlite3_result_int64(pCtx, (sqlite3_int64)iRet);
+}
+
+/*
+** Register the SQL functions.
+*/
+static int cflRegister(sqlite3 *db){
+  int rc = sqlite3_create_function(
+      db, "sqlite_readint32", -1, SQLITE_UTF8, 0, readint_function, 0, 0
+  );
+  if( rc!=SQLITE_OK ) return rc;
+  rc = sqlite3_create_function(
+      db, "checkfreelist", 1, SQLITE_UTF8, 0, checkfreelist_function, 0, 0
+  );
+  return rc;
+}
+
+/*
+** Extension load function.
+*/
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_checkfreelist_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  SQLITE_EXTENSION_INIT2(pApi);
+  return cflRegister(db);
+}
diff --git a/ext/repair/checkindex.c b/ext/repair/checkindex.c
new file mode 100644
index 0000000000000000000000000000000000000000..5f6e646e4422c84dbe579766717ecf32a7ce82eb
--- /dev/null
+++ b/ext/repair/checkindex.c
@@ -0,0 +1,929 @@
+/*
+** 2017 October 27
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+*/
+
+#include "sqlite3ext.h"
+SQLITE_EXTENSION_INIT1
+
+/*
+** Stuff that is available inside the amalgamation, but which we need to
+** declare ourselves if this module is compiled separately.
+*/
+#ifndef SQLITE_AMALGAMATION
+# include <string.h>
+# include <stdio.h>
+# include <stdlib.h>
+# include <assert.h>
+typedef unsigned char u8;
+typedef unsigned short u16;
+typedef unsigned int u32;
+#define get4byte(x) (        \
+    ((u32)((x)[0])<<24) +    \
+    ((u32)((x)[1])<<16) +    \
+    ((u32)((x)[2])<<8) +     \
+    ((u32)((x)[3]))          \
+)
+#endif
+
+typedef struct CidxTable CidxTable;
+typedef struct CidxCursor CidxCursor;
+
+struct CidxTable {
+  sqlite3_vtab base;              /* Base class.  Must be first */
+  sqlite3 *db;
+};
+
+struct CidxCursor {
+  sqlite3_vtab_cursor base;       /* Base class.  Must be first */
+  sqlite3_int64 iRowid;           /* Row number of the output */
+  char *zIdxName;                 /* Copy of the index_name parameter */
+  char *zAfterKey;                /* Copy of the after_key parameter */
+  sqlite3_stmt *pStmt;            /* SQL statement that generates the output */
+};
+
+typedef struct CidxColumn CidxColumn;
+struct CidxColumn {
+  char *zExpr;                    /* Text for indexed expression */
+  int bDesc;                      /* True for DESC columns, otherwise false */
+  int bKey;                       /* Part of index, not PK */
+};
+
+typedef struct CidxIndex CidxIndex;
+struct CidxIndex {
+  char *zWhere;                   /* WHERE clause, if any */
+  int nCol;                       /* Elements in aCol[] array */
+  CidxColumn aCol[1];             /* Array of indexed columns */
+};
+
+static void *cidxMalloc(int *pRc, int n){
+  void *pRet = 0;
+  assert( n!=0 );
+  if( *pRc==SQLITE_OK ){
+    pRet = sqlite3_malloc(n);
+    if( pRet ){
+      memset(pRet, 0, n);
+    }else{
+      *pRc = SQLITE_NOMEM;
+    }
+  }
+  return pRet;
+}
+
+static void cidxCursorError(CidxCursor *pCsr, const char *zFmt, ...){
+  va_list ap;
+  va_start(ap, zFmt);
+  assert( pCsr->base.pVtab->zErrMsg==0 );
+  pCsr->base.pVtab->zErrMsg = sqlite3_vmprintf(zFmt, ap);
+  va_end(ap);
+}
+
+/*
+** Connect to the incremental_index_check virtual table.
+*/
+static int cidxConnect(
+  sqlite3 *db,
+  void *pAux,
+  int argc, const char *const*argv,
+  sqlite3_vtab **ppVtab,
+  char **pzErr
+){
+  int rc = SQLITE_OK;
+  CidxTable *pRet;
+
+#define IIC_ERRMSG        0
+#define IIC_CURRENT_KEY   1
+#define IIC_INDEX_NAME    2
+#define IIC_AFTER_KEY     3
+#define IIC_SCANNER_SQL   4
+  rc = sqlite3_declare_vtab(db,
+      "CREATE TABLE xyz("
+      " errmsg TEXT,"            /* Error message or NULL if everything is ok */
+      " current_key TEXT,"       /* SQLite quote() text of key values */
+      " index_name HIDDEN,"      /* IN: name of the index being scanned */
+      " after_key HIDDEN,"       /* IN: Start scanning after this key */
+      " scanner_sql HIDDEN"      /* debuggingn info: SQL used for scanner */
+      ")"
+  );
+  pRet = cidxMalloc(&rc, sizeof(CidxTable));
+  if( pRet ){
+    pRet->db = db;
+  }
+
+  *ppVtab = (sqlite3_vtab*)pRet;
+  return rc;
+}
+
+/*
+** Disconnect from or destroy an incremental_index_check virtual table.
+*/
+static int cidxDisconnect(sqlite3_vtab *pVtab){
+  CidxTable *pTab = (CidxTable*)pVtab;
+  sqlite3_free(pTab);
+  return SQLITE_OK;
+}
+
+/*
+** idxNum and idxStr are not used.  There are only three possible plans,
+** which are all distinguished by the number of parameters.
+**
+**   No parameters:         A degenerate plan.  The result is zero rows.
+**   1 Parameter:           Scan all of the index starting with first entry
+**   2 parameters:          Scan the index starting after the "after_key".    
+**
+** Provide successively smaller costs for each of these plans to encourage
+** the query planner to select the one with the most parameters.
+*/
+static int cidxBestIndex(sqlite3_vtab *tab, sqlite3_index_info *pInfo){
+  int iIdxName = -1;
+  int iAfterKey = -1;
+  int i;
+
+  for(i=0; i<pInfo->nConstraint; i++){
+    struct sqlite3_index_constraint *p = &pInfo->aConstraint[i];
+    if( p->usable==0 ) continue;
+    if( p->op!=SQLITE_INDEX_CONSTRAINT_EQ ) continue;
+
+    if( p->iColumn==IIC_INDEX_NAME ){
+      iIdxName = i;
+    }
+    if( p->iColumn==IIC_AFTER_KEY ){
+      iAfterKey = i;
+    }
+  }
+
+  if( iIdxName<0 ){
+    pInfo->estimatedCost = 1000000000.0;
+  }else{
+    pInfo->aConstraintUsage[iIdxName].argvIndex = 1;
+    pInfo->aConstraintUsage[iIdxName].omit = 1;
+    if( iAfterKey<0 ){
+      pInfo->estimatedCost = 1000000.0;
+    }else{
+      pInfo->aConstraintUsage[iAfterKey].argvIndex = 2;
+      pInfo->aConstraintUsage[iAfterKey].omit = 1;
+      pInfo->estimatedCost = 1000.0;
+    }
+  }
+
+  return SQLITE_OK;
+}
+
+/*
+** Open a new btreeinfo cursor.
+*/
+static int cidxOpen(sqlite3_vtab *pVTab, sqlite3_vtab_cursor **ppCursor){
+  CidxCursor *pRet;
+  int rc = SQLITE_OK;
+
+  pRet = cidxMalloc(&rc, sizeof(CidxCursor));
+
+  *ppCursor = (sqlite3_vtab_cursor*)pRet;
+  return rc;
+}
+
+/*
+** Close a btreeinfo cursor.
+*/
+static int cidxClose(sqlite3_vtab_cursor *pCursor){
+  CidxCursor *pCsr = (CidxCursor*)pCursor;
+  sqlite3_finalize(pCsr->pStmt);
+  sqlite3_free(pCsr->zIdxName);
+  sqlite3_free(pCsr->zAfterKey);
+  sqlite3_free(pCsr);
+  return SQLITE_OK;
+}
+
+/*
+** Move a btreeinfo cursor to the next entry in the file.
+*/
+static int cidxNext(sqlite3_vtab_cursor *pCursor){
+  CidxCursor *pCsr = (CidxCursor*)pCursor;
+  int rc = sqlite3_step(pCsr->pStmt);
+  if( rc!=SQLITE_ROW ){
+    rc = sqlite3_finalize(pCsr->pStmt);
+    pCsr->pStmt = 0;
+    if( rc!=SQLITE_OK ){
+      sqlite3 *db = ((CidxTable*)pCsr->base.pVtab)->db;
+      cidxCursorError(pCsr, "Cursor error: %s", sqlite3_errmsg(db));
+    }
+  }else{
+    pCsr->iRowid++;
+    rc = SQLITE_OK;
+  }
+  return rc;
+}
+
+/* We have reached EOF if previous sqlite3_step() returned
+** anything other than SQLITE_ROW;
+*/
+static int cidxEof(sqlite3_vtab_cursor *pCursor){
+  CidxCursor *pCsr = (CidxCursor*)pCursor;
+  return pCsr->pStmt==0;
+}
+
+static char *cidxMprintf(int *pRc, const char *zFmt, ...){
+  char *zRet = 0;
+  va_list ap;
+  va_start(ap, zFmt);
+  zRet = sqlite3_vmprintf(zFmt, ap);
+  if( *pRc==SQLITE_OK ){
+    if( zRet==0 ){
+      *pRc = SQLITE_NOMEM;
+    }
+  }else{
+    sqlite3_free(zRet);
+    zRet = 0;
+  }
+  va_end(ap);
+  return zRet;
+}
+
+static sqlite3_stmt *cidxPrepare(
+  int *pRc, CidxCursor *pCsr, const char *zFmt, ...
+){
+  sqlite3_stmt *pRet = 0;
+  char *zSql;
+  va_list ap;                     /* ... printf arguments */
+  va_start(ap, zFmt);
+
+  zSql = sqlite3_vmprintf(zFmt, ap);
+  if( *pRc==SQLITE_OK ){
+    if( zSql==0 ){
+      *pRc = SQLITE_NOMEM;
+    }else{
+      sqlite3 *db = ((CidxTable*)pCsr->base.pVtab)->db;
+      *pRc = sqlite3_prepare_v2(db, zSql, -1, &pRet, 0);
+      if( *pRc!=SQLITE_OK ){
+        cidxCursorError(pCsr, "SQL error: %s", sqlite3_errmsg(db));
+      }
+    }
+  }
+  sqlite3_free(zSql);
+  va_end(ap);
+
+  return pRet;
+}
+
+static void cidxFinalize(int *pRc, sqlite3_stmt *pStmt){
+  int rc = sqlite3_finalize(pStmt);
+  if( *pRc==SQLITE_OK ) *pRc = rc;
+}
+
+char *cidxStrdup(int *pRc, const char *zStr){
+  char *zRet = 0;
+  if( *pRc==SQLITE_OK ){
+    int n = (int)strlen(zStr);
+    zRet = cidxMalloc(pRc, n+1);
+    if( zRet ) memcpy(zRet, zStr, n+1);
+  }
+  return zRet;
+}
+
+static void cidxFreeIndex(CidxIndex *pIdx){
+  if( pIdx ){
+    int i;
+    for(i=0; i<pIdx->nCol; i++){
+      sqlite3_free(pIdx->aCol[i].zExpr);
+    }
+    sqlite3_free(pIdx->zWhere);
+    sqlite3_free(pIdx);
+  }
+}
+
+static int cidx_isspace(char c){
+  return c==' ' || c=='\t' || c=='\r' || c=='\n';
+}
+
+static int cidx_isident(char c){
+  return c<0 
+    || (c>='0' && c<='9') || (c>='a' && c<='z') 
+    || (c>='A' && c<='Z') || c=='_';
+}
+
+#define CIDX_PARSE_EOF   0
+#define CIDX_PARSE_COMMA 1      /*  "," */
+#define CIDX_PARSE_OPEN  2      /*  "(" */
+#define CIDX_PARSE_CLOSE 3      /*  ")" */
+
+/*
+** Argument zIn points into the start, middle or end of a CREATE INDEX
+** statement. If argument pbDoNotTrim is non-NULL, then this function
+** scans the input until it finds EOF, a comma (",") or an open or
+** close parenthesis character. It then sets (*pzOut) to point to said
+** character and returns a CIDX_PARSE_XXX constant as appropriate. The
+** parser is smart enough that special characters inside SQL strings
+** or comments are not returned for.
+**
+** Or, if argument pbDoNotTrim is NULL, then this function sets *pzOut
+** to point to the first character of the string that is not whitespace
+** or part of an SQL comment and returns CIDX_PARSE_EOF.
+**
+** Additionally, if pbDoNotTrim is not NULL and the element immediately
+** before (*pzOut) is an SQL comment of the form "-- comment", then
+** (*pbDoNotTrim) is set before returning. In all other cases it is
+** cleared.
+*/
+static int cidxFindNext(
+  const char *zIn, 
+  const char **pzOut,
+  int *pbDoNotTrim                /* OUT: True if prev is -- comment */
+){
+  const char *z = zIn;
+
+  while( 1 ){
+    while( cidx_isspace(*z) ) z++;
+    if( z[0]=='-' && z[1]=='-' ){
+      z += 2;
+      while( z[0]!='\n' ){
+        if( z[0]=='\0' ) return CIDX_PARSE_EOF;
+        z++;
+      }
+      while( cidx_isspace(*z) ) z++;
+      if( pbDoNotTrim ) *pbDoNotTrim = 1;
+    }else
+    if( z[0]=='/' && z[1]=='*' ){
+      z += 2;
+      while( z[0]!='*' || z[1]!='/' ){
+        if( z[1]=='\0' ) return CIDX_PARSE_EOF;
+        z++;
+      }
+      z += 2;
+    }else{
+      *pzOut = z;
+      if( pbDoNotTrim==0 ) return CIDX_PARSE_EOF;
+      switch( *z ){
+        case '\0':
+          return CIDX_PARSE_EOF;
+        case '(':
+          return CIDX_PARSE_OPEN;
+        case ')':
+          return CIDX_PARSE_CLOSE;
+        case ',':
+          return CIDX_PARSE_COMMA;
+  
+        case '"': 
+        case '\'': 
+        case '`': {
+          char q = *z;
+          z++;
+          while( *z ){
+            if( *z==q ){
+              z++;
+              if( *z!=q ) break;
+            }
+            z++;
+          }
+          break;
+        }
+  
+        case '[':
+          while( *z++!=']' );
+          break;
+  
+        default:
+          z++;
+          break;
+      }
+      *pbDoNotTrim = 0;
+    }
+  }
+
+  assert( 0 );
+  return -1;
+}
+
+static int cidxParseSQL(CidxCursor *pCsr, CidxIndex *pIdx, const char *zSql){
+  const char *z = zSql;
+  const char *z1;
+  int e;
+  int rc = SQLITE_OK;
+  int nParen = 1;
+  int bDoNotTrim = 0;
+  CidxColumn *pCol = pIdx->aCol;
+
+  e = cidxFindNext(z, &z, &bDoNotTrim);
+  if( e!=CIDX_PARSE_OPEN ) goto parse_error;
+  z1 = z+1;
+  z++;
+  while( nParen>0 ){
+    e = cidxFindNext(z, &z, &bDoNotTrim);
+    if( e==CIDX_PARSE_EOF ) goto parse_error;
+    if( (e==CIDX_PARSE_COMMA || e==CIDX_PARSE_CLOSE) && nParen==1 ){
+      const char *z2 = z;
+      if( pCol->zExpr ) goto parse_error;
+
+      if( bDoNotTrim==0 ){
+        while( cidx_isspace(z[-1]) ) z--;
+        if( !sqlite3_strnicmp(&z[-3], "asc", 3) && 0==cidx_isident(z[-4]) ){
+          z -= 3;
+          while( cidx_isspace(z[-1]) ) z--;
+        }else
+          if( !sqlite3_strnicmp(&z[-4], "desc", 4) && 0==cidx_isident(z[-5]) ){
+            z -= 4;
+            while( cidx_isspace(z[-1]) ) z--;
+          }
+        while( cidx_isspace(z1[0]) ) z1++;
+      }
+
+      pCol->zExpr = cidxMprintf(&rc, "%.*s", z-z1, z1);
+      pCol++;
+      z = z1 = z2+1;
+    }
+    if( e==CIDX_PARSE_OPEN ) nParen++;
+    if( e==CIDX_PARSE_CLOSE ) nParen--;
+    z++;
+  }
+
+  /* Search for a WHERE clause */
+  cidxFindNext(z, &z, 0);
+  if( 0==sqlite3_strnicmp(z, "where", 5) ){
+    pIdx->zWhere = cidxMprintf(&rc, "%s\n", &z[5]);
+  }else if( z[0]!='\0' ){
+    goto parse_error;
+  }
+
+  return rc;
+
+ parse_error:
+  cidxCursorError(pCsr, "Parse error in: %s", zSql);
+  return SQLITE_ERROR;
+}
+
+static int cidxLookupIndex(
+  CidxCursor *pCsr,               /* Cursor object */
+  const char *zIdx,               /* Name of index to look up */
+  CidxIndex **ppIdx,              /* OUT: Description of columns */
+  char **pzTab                    /* OUT: Table name */
+){
+  int rc = SQLITE_OK;
+  char *zTab = 0;
+  CidxIndex *pIdx = 0;
+
+  sqlite3_stmt *pFindTab = 0;
+  sqlite3_stmt *pInfo = 0;
+    
+  /* Find the table for this index. */
+  pFindTab = cidxPrepare(&rc, pCsr, 
+      "SELECT tbl_name, sql FROM sqlite_schema WHERE name=%Q AND type='index'",
+      zIdx
+  );
+  if( rc==SQLITE_OK && sqlite3_step(pFindTab)==SQLITE_ROW ){
+    const char *zSql = (const char*)sqlite3_column_text(pFindTab, 1);
+    zTab = cidxStrdup(&rc, (const char*)sqlite3_column_text(pFindTab, 0));
+
+    pInfo = cidxPrepare(&rc, pCsr, "PRAGMA index_xinfo(%Q)", zIdx);
+    if( rc==SQLITE_OK ){
+      int nAlloc = 0;
+      int iCol = 0;
+
+      while( sqlite3_step(pInfo)==SQLITE_ROW ){
+        const char *zName = (const char*)sqlite3_column_text(pInfo, 2);
+        const char *zColl = (const char*)sqlite3_column_text(pInfo, 4);
+        CidxColumn *p;
+        if( zName==0 ) zName = "rowid";
+        if( iCol==nAlloc ){
+          int nByte = sizeof(CidxIndex) + sizeof(CidxColumn)*(nAlloc+8);
+          pIdx = (CidxIndex*)sqlite3_realloc(pIdx, nByte);
+          nAlloc += 8;
+        }
+        p = &pIdx->aCol[iCol++];
+        p->bDesc = sqlite3_column_int(pInfo, 3);
+        p->bKey = sqlite3_column_int(pInfo, 5);
+        if( zSql==0 || p->bKey==0 ){
+          p->zExpr = cidxMprintf(&rc, "\"%w\" COLLATE %s",zName,zColl);
+        }else{
+          p->zExpr = 0;
+        }
+        pIdx->nCol = iCol;
+        pIdx->zWhere = 0;
+      }
+      cidxFinalize(&rc, pInfo);
+    }
+
+    if( rc==SQLITE_OK && zSql ){
+      rc = cidxParseSQL(pCsr, pIdx, zSql);
+    }
+  }
+
+  cidxFinalize(&rc, pFindTab);
+  if( rc==SQLITE_OK && zTab==0 ){
+    rc = SQLITE_ERROR;
+  }
+  
+  if( rc!=SQLITE_OK ){
+    sqlite3_free(zTab);
+    cidxFreeIndex(pIdx);
+  }else{
+    *pzTab = zTab;
+    *ppIdx = pIdx;
+  }
+
+  return rc;
+}
+
+static int cidxDecodeAfter(
+  CidxCursor *pCsr, 
+  int nCol, 
+  const char *zAfterKey, 
+  char ***pazAfter
+){
+  char **azAfter;
+  int rc = SQLITE_OK;
+  int nAfterKey = (int)strlen(zAfterKey);
+
+  azAfter = cidxMalloc(&rc, sizeof(char*)*nCol + nAfterKey+1);
+  if( rc==SQLITE_OK ){
+    int i;
+    char *zCopy = (char*)&azAfter[nCol];
+    char *p = zCopy;
+    memcpy(zCopy, zAfterKey, nAfterKey+1);
+    for(i=0; i<nCol; i++){
+      while( *p==' ' ) p++;
+
+      /* Check NULL values */
+      if( *p=='N' ){
+        if( memcmp(p, "NULL", 4) ) goto parse_error;
+        p += 4;
+      }
+
+      /* Check strings and blob literals */
+      else if( *p=='X' || *p=='\'' ){
+        azAfter[i] = p;
+        if( *p=='X' ) p++;
+        if( *p!='\'' ) goto parse_error;
+        p++;
+        while( 1 ){
+          if( *p=='\0' ) goto parse_error;
+          if( *p=='\'' ){
+            p++;
+            if( *p!='\'' ) break;
+          }
+          p++;
+        }
+      }
+
+      /* Check numbers */
+      else{
+        azAfter[i] = p;
+        while( (*p>='0' && *p<='9') 
+            || *p=='.' || *p=='+' || *p=='-' || *p=='e' || *p=='E'
+        ){
+          p++;
+        }
+      }
+
+      while( *p==' ' ) p++;
+      if( *p!=(i==(nCol-1) ? '\0' : ',') ){
+        goto parse_error;
+      }
+      *p++ = '\0';
+    }
+  }
+
+  *pazAfter = azAfter;
+  return rc;
+
+ parse_error:
+  sqlite3_free(azAfter);
+  *pazAfter = 0;
+  cidxCursorError(pCsr, "%s", "error parsing after value");
+  return SQLITE_ERROR;
+}
+
+static char *cidxWhere(
+  int *pRc, CidxColumn *aCol, char **azAfter, int iGt, int bLastIsNull
+){
+  char *zRet = 0;
+  const char *zSep = "";
+  int i;
+
+  for(i=0; i<iGt; i++){
+    zRet = cidxMprintf(pRc, "%z%s(%s) IS %s", zRet, 
+        zSep, aCol[i].zExpr, (azAfter[i] ? azAfter[i] : "NULL")
+    );
+    zSep = " AND ";
+  }
+
+  if( bLastIsNull ){
+    zRet = cidxMprintf(pRc, "%z%s(%s) IS NULL", zRet, zSep, aCol[iGt].zExpr);
+  }
+  else if( azAfter[iGt] ){
+    zRet = cidxMprintf(pRc, "%z%s(%s) %s %s", zRet, 
+        zSep, aCol[iGt].zExpr, (aCol[iGt].bDesc ? "<" : ">"), 
+        azAfter[iGt]
+    );
+  }else{
+    zRet = cidxMprintf(pRc, "%z%s(%s) IS NOT NULL", zRet, zSep,aCol[iGt].zExpr);
+  }
+
+  return zRet;
+}
+
+#define CIDX_CLIST_ALL         0
+#define CIDX_CLIST_ORDERBY     1
+#define CIDX_CLIST_CURRENT_KEY 2
+#define CIDX_CLIST_SUBWHERE    3
+#define CIDX_CLIST_SUBEXPR     4
+
+/*
+** This function returns various strings based on the contents of the
+** CidxIndex structure and the eType parameter.
+*/
+static char *cidxColumnList(
+  int *pRc,                       /* IN/OUT: Error code */
+  const char *zIdx,
+  CidxIndex *pIdx,                /* Indexed columns */
+  int eType                       /* True to include ASC/DESC */
+){
+  char *zRet = 0;
+  if( *pRc==SQLITE_OK ){
+    const char *aDir[2] = {"", " DESC"};
+    int i;
+    const char *zSep = "";
+
+    for(i=0; i<pIdx->nCol; i++){
+      CidxColumn *p = &pIdx->aCol[i];
+      assert( pIdx->aCol[i].bDesc==0 || pIdx->aCol[i].bDesc==1 );
+      switch( eType ){
+
+        case CIDX_CLIST_ORDERBY:
+          zRet = cidxMprintf(pRc, "%z%s%d%s", zRet, zSep, i+1, aDir[p->bDesc]);
+          zSep = ",";
+          break;
+
+        case CIDX_CLIST_CURRENT_KEY:
+          zRet = cidxMprintf(pRc, "%z%squote(i%d)", zRet, zSep, i);
+          zSep = "||','||";
+          break;
+
+        case CIDX_CLIST_SUBWHERE:
+          if( p->bKey==0 ){
+            zRet = cidxMprintf(pRc, "%z%s%s IS i.i%d", zRet, 
+                zSep, p->zExpr, i
+            );
+            zSep = " AND ";
+          }
+          break;
+
+        case CIDX_CLIST_SUBEXPR:
+          if( p->bKey==1 ){
+            zRet = cidxMprintf(pRc, "%z%s%s IS i.i%d", zRet, 
+                zSep, p->zExpr, i
+            );
+            zSep = " AND ";
+          }
+          break;
+
+        default:
+          assert( eType==CIDX_CLIST_ALL );
+          zRet = cidxMprintf(pRc, "%z%s(%s) AS i%d", zRet, zSep, p->zExpr, i);
+          zSep = ", ";
+          break;
+      }
+    }
+  }
+
+  return zRet;
+}
+
+/*
+** Generate SQL (in memory obtained from sqlite3_malloc()) that will
+** continue the index scan for zIdxName starting after zAfterKey.
+*/
+int cidxGenerateScanSql(
+  CidxCursor *pCsr,           /* The cursor which needs the new statement */
+  const char *zIdxName,       /* index to be scanned */
+  const char *zAfterKey,      /* start after this key, if not NULL */
+  char **pzSqlOut             /* OUT: Write the generated SQL here */
+){
+  int rc;
+  char *zTab = 0;
+  char *zCurrentKey = 0;
+  char *zOrderBy = 0;
+  char *zSubWhere = 0;
+  char *zSubExpr = 0;
+  char *zSrcList = 0;
+  char **azAfter = 0;
+  CidxIndex *pIdx = 0;
+
+  *pzSqlOut = 0;
+  rc = cidxLookupIndex(pCsr, zIdxName, &pIdx, &zTab);
+
+  zOrderBy = cidxColumnList(&rc, zIdxName, pIdx, CIDX_CLIST_ORDERBY);
+  zCurrentKey = cidxColumnList(&rc, zIdxName, pIdx, CIDX_CLIST_CURRENT_KEY);
+  zSubWhere = cidxColumnList(&rc, zIdxName, pIdx, CIDX_CLIST_SUBWHERE);
+  zSubExpr = cidxColumnList(&rc, zIdxName, pIdx, CIDX_CLIST_SUBEXPR);
+  zSrcList = cidxColumnList(&rc, zIdxName, pIdx, CIDX_CLIST_ALL);
+
+  if( rc==SQLITE_OK && zAfterKey ){
+    rc = cidxDecodeAfter(pCsr, pIdx->nCol, zAfterKey, &azAfter);
+  }
+
+  if( rc==SQLITE_OK ){
+    if( zAfterKey==0 ){
+      *pzSqlOut = cidxMprintf(&rc,
+          "SELECT (SELECT %s FROM %Q AS t WHERE %s), %s "
+          "FROM (SELECT %s FROM %Q INDEXED BY %Q %s%sORDER BY %s) AS i",
+          zSubExpr, zTab, zSubWhere, zCurrentKey, 
+          zSrcList, zTab, zIdxName, 
+          (pIdx->zWhere ? "WHERE " : ""), (pIdx->zWhere ? pIdx->zWhere : ""),
+          zOrderBy
+      );
+    }else{
+      const char *zSep = "";
+      char *zSql;
+      int i;
+  
+      zSql = cidxMprintf(&rc, 
+          "SELECT (SELECT %s FROM %Q WHERE %s), %s FROM (",
+          zSubExpr, zTab, zSubWhere, zCurrentKey
+      );
+      for(i=pIdx->nCol-1; i>=0; i--){
+        int j;
+        if( pIdx->aCol[i].bDesc && azAfter[i]==0 ) continue;
+        for(j=0; j<2; j++){
+          char *zWhere = cidxWhere(&rc, pIdx->aCol, azAfter, i, j);
+          zSql = cidxMprintf(&rc, "%z"
+              "%sSELECT * FROM ("
+                "SELECT %s FROM %Q INDEXED BY %Q WHERE %s%s%z ORDER BY %s"
+              ")",
+              zSql, zSep, zSrcList, zTab, zIdxName, 
+              pIdx->zWhere ? pIdx->zWhere : "",
+              pIdx->zWhere ? " AND " : "",
+              zWhere, zOrderBy
+          );
+          zSep = " UNION ALL ";
+          if( pIdx->aCol[i].bDesc==0 ) break;
+        }
+      }
+      *pzSqlOut = cidxMprintf(&rc, "%z) AS i", zSql);
+    }
+  }
+
+  sqlite3_free(zTab);
+  sqlite3_free(zCurrentKey);
+  sqlite3_free(zOrderBy);
+  sqlite3_free(zSubWhere);
+  sqlite3_free(zSubExpr);
+  sqlite3_free(zSrcList);
+  cidxFreeIndex(pIdx);
+  sqlite3_free(azAfter);
+  return rc;
+}
+
+
+/* 
+** Position a cursor back to the beginning.
+*/
+static int cidxFilter(
+  sqlite3_vtab_cursor *pCursor, 
+  int idxNum, const char *idxStr,
+  int argc, sqlite3_value **argv
+){
+  int rc = SQLITE_OK;
+  CidxCursor *pCsr = (CidxCursor*)pCursor;
+  const char *zIdxName = 0;
+  const char *zAfterKey = 0;
+
+  sqlite3_free(pCsr->zIdxName);
+  pCsr->zIdxName = 0;
+  sqlite3_free(pCsr->zAfterKey);
+  pCsr->zAfterKey = 0;
+  sqlite3_finalize(pCsr->pStmt);
+  pCsr->pStmt = 0;
+
+  if( argc>0 ){
+    zIdxName = (const char*)sqlite3_value_text(argv[0]);
+    if( argc>1 ){
+      zAfterKey = (const char*)sqlite3_value_text(argv[1]);
+    }
+  }
+
+  if( zIdxName ){
+    char *zSql = 0;
+    pCsr->zIdxName = sqlite3_mprintf("%s", zIdxName);
+    pCsr->zAfterKey = zAfterKey ? sqlite3_mprintf("%s", zAfterKey) : 0;
+    rc = cidxGenerateScanSql(pCsr, zIdxName, zAfterKey, &zSql);
+    if( zSql ){
+      pCsr->pStmt = cidxPrepare(&rc, pCsr, "%z", zSql);
+    }
+  }
+
+  if( pCsr->pStmt ){
+    assert( rc==SQLITE_OK );
+    rc = cidxNext(pCursor);
+  }
+  pCsr->iRowid = 1;
+  return rc;
+}
+
+/* 
+** Return a column value.
+*/
+static int cidxColumn(
+  sqlite3_vtab_cursor *pCursor, 
+  sqlite3_context *ctx, 
+  int iCol
+){
+  CidxCursor *pCsr = (CidxCursor*)pCursor;
+  assert( iCol>=IIC_ERRMSG && iCol<=IIC_SCANNER_SQL );
+  switch( iCol ){
+    case IIC_ERRMSG: {
+      const char *zVal = 0;
+      if( sqlite3_column_type(pCsr->pStmt, 0)==SQLITE_INTEGER ){
+        if( sqlite3_column_int(pCsr->pStmt, 0)==0 ){
+          zVal = "row data mismatch";
+        }
+      }else{
+        zVal = "row missing";
+      }
+      sqlite3_result_text(ctx, zVal, -1, SQLITE_STATIC);
+      break;
+    }
+    case IIC_CURRENT_KEY: {
+      sqlite3_result_value(ctx, sqlite3_column_value(pCsr->pStmt, 1));
+      break;
+    }
+    case IIC_INDEX_NAME: {
+      sqlite3_result_text(ctx, pCsr->zIdxName, -1, SQLITE_TRANSIENT);
+      break;
+    }
+    case IIC_AFTER_KEY: {
+      sqlite3_result_text(ctx, pCsr->zAfterKey, -1, SQLITE_TRANSIENT);
+      break;
+    }
+    case IIC_SCANNER_SQL: {
+      char *zSql = 0;
+      cidxGenerateScanSql(pCsr, pCsr->zIdxName, pCsr->zAfterKey, &zSql);
+      sqlite3_result_text(ctx, zSql, -1, sqlite3_free);
+      break;
+    }
+  }
+  return SQLITE_OK;
+}
+
+/* Return the ROWID for the sqlite_btreeinfo table */
+static int cidxRowid(sqlite3_vtab_cursor *pCursor, sqlite_int64 *pRowid){
+  CidxCursor *pCsr = (CidxCursor*)pCursor;
+  *pRowid = pCsr->iRowid;
+  return SQLITE_OK;
+}
+
+/*
+** Register the virtual table modules with the database handle passed
+** as the only argument.
+*/
+static int ciInit(sqlite3 *db){
+  static sqlite3_module cidx_module = {
+    0,                            /* iVersion */
+    0,                            /* xCreate */
+    cidxConnect,                  /* xConnect */
+    cidxBestIndex,                /* xBestIndex */
+    cidxDisconnect,               /* xDisconnect */
+    0,                            /* xDestroy */
+    cidxOpen,                     /* xOpen - open a cursor */
+    cidxClose,                    /* xClose - close a cursor */
+    cidxFilter,                   /* xFilter - configure scan constraints */
+    cidxNext,                     /* xNext - advance a cursor */
+    cidxEof,                      /* xEof - check for end of scan */
+    cidxColumn,                   /* xColumn - read data */
+    cidxRowid,                    /* xRowid - read data */
+    0,                            /* xUpdate */
+    0,                            /* xBegin */
+    0,                            /* xSync */
+    0,                            /* xCommit */
+    0,                            /* xRollback */
+    0,                            /* xFindMethod */
+    0,                            /* xRename */
+    0,                            /* xSavepoint */
+    0,                            /* xRelease */
+    0,                            /* xRollbackTo */
+    0,                            /* xShadowName */
+    0                             /* xIntegrity */
+  };
+  return sqlite3_create_module(db, "incremental_index_check", &cidx_module, 0);
+}
+
+/*
+** Extension load function.
+*/
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_checkindex_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  SQLITE_EXTENSION_INIT2(pApi);
+  return ciInit(db);
+}
diff --git a/ext/repair/sqlite3_checker.c.in b/ext/repair/sqlite3_checker.c.in
new file mode 100644
index 0000000000000000000000000000000000000000..96b15f2713613bd2cdf0f4072ea028b9021b8dd5
--- /dev/null
+++ b/ext/repair/sqlite3_checker.c.in
@@ -0,0 +1,85 @@
+/*
+** Read an SQLite database file and analyze its space utilization.  Generate
+** text on standard output.
+*/
+#define TCLSH_INIT_PROC sqlite3_checker_init_proc
+#define SQLITE_ENABLE_DBPAGE_VTAB 1
+#undef SQLITE_THREADSAFE
+#define SQLITE_THREADSAFE 0
+#undef SQLITE_ENABLE_COLUMN_METADATA
+#define SQLITE_OMIT_DECLTYPE 1
+#define SQLITE_OMIT_DEPRECATED 1
+#define SQLITE_OMIT_PROGRESS_CALLBACK 1
+#define SQLITE_OMIT_SHARED_CACHE 1
+#define SQLITE_DEFAULT_MEMSTATUS 0
+#define SQLITE_MAX_EXPR_DEPTH 0
+INCLUDE sqlite3.c
+INCLUDE $ROOT/src/tclsqlite.c
+INCLUDE $ROOT/ext/misc/btreeinfo.c
+INCLUDE $ROOT/ext/repair/checkindex.c
+INCLUDE $ROOT/ext/repair/checkfreelist.c
+
+/*
+** Decode a pointer to an sqlite3 object.
+*/
+int getDbPointer(Tcl_Interp *interp, const char *zA, sqlite3 **ppDb){
+  struct SqliteDb *p;
+  Tcl_CmdInfo cmdInfo;
+  if( Tcl_GetCommandInfo(interp, zA, &cmdInfo) ){
+    p = (struct SqliteDb*)cmdInfo.objClientData;
+    *ppDb = p->db;
+    return TCL_OK;
+  }else{
+    *ppDb = 0;
+    return TCL_ERROR;
+  }
+  return TCL_OK;
+}
+
+/*
+**   sqlite3_imposter db main rootpage {CREATE TABLE...}  ;# setup an imposter
+**   sqlite3_imposter db main                             ;# rm all imposters
+*/
+static int sqlite3_imposter(
+  void *clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  sqlite3 *db;
+  const char *zSchema;
+  int iRoot;
+  const char *zSql;
+
+  if( objc!=3 && objc!=5 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "DB SCHEMA [ROOTPAGE SQL]");
+    return TCL_ERROR;
+  }
+  if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
+  zSchema = Tcl_GetString(objv[2]);
+  if( objc==3 ){
+    sqlite3_test_control(SQLITE_TESTCTRL_IMPOSTER, db, zSchema, 0, 1);
+  }else{
+    if( Tcl_GetIntFromObj(interp, objv[3], &iRoot) ) return TCL_ERROR;
+    zSql = Tcl_GetString(objv[4]);
+    sqlite3_test_control(SQLITE_TESTCTRL_IMPOSTER, db, zSchema, 1, iRoot);
+    sqlite3_exec(db, zSql, 0, 0, 0);
+    sqlite3_test_control(SQLITE_TESTCTRL_IMPOSTER, db, zSchema, 0, 0);
+  }
+  return TCL_OK;
+}
+
+#include <stdio.h>
+
+const char *sqlite3_checker_init_proc(Tcl_Interp *interp){
+  Tcl_CreateObjCommand(interp, "sqlite3_imposter", 
+                       (Tcl_ObjCmdProc*)sqlite3_imposter, 0, 0);
+  sqlite3_auto_extension((void(*)(void))sqlite3_btreeinfo_init);
+  sqlite3_auto_extension((void(*)(void))sqlite3_checkindex_init);
+  sqlite3_auto_extension((void(*)(void))sqlite3_checkfreelist_init);
+  return
+BEGIN_STRING
+INCLUDE $ROOT/ext/repair/sqlite3_checker.tcl
+END_STRING
+;
+}
diff --git a/ext/repair/sqlite3_checker.tcl b/ext/repair/sqlite3_checker.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..2ae6e15b123cf733042ef5bc524ae95ffdc1d34c
--- /dev/null
+++ b/ext/repair/sqlite3_checker.tcl
@@ -0,0 +1,264 @@
+# This TCL script is the main driver script for the sqlite3_checker utility
+# program.
+#
+
+# Special case:
+#
+#      sqlite3_checker --test FILENAME ARGS
+#
+# uses FILENAME in place of this script.
+#
+if {[lindex $argv 0]=="--test" && [llength $argv]>1} {
+  set ::argv0 [lindex $argv 1]
+  set argv [lrange $argv 2 end]
+  source $argv0
+  exit 0
+}
+
+# Emulate a TCL shell
+#
+proc tclsh {} {
+  set line {}
+  while {![eof stdin]} {
+    if {$line!=""} {
+      puts -nonewline "> "
+    } else {
+      puts -nonewline "% "
+    }
+    flush stdout
+    append line [gets stdin]
+    if {[info complete $line]} {
+      if {[catch {uplevel #0 $line} result]} {
+        puts stderr "Error: $result"
+      } elseif {$result!=""} {
+        puts $result
+      }
+      set line {}
+    } else {
+      append line \n
+    }
+  }
+}
+
+# Do an incremental integrity check of a single index
+#
+proc check_index {idxname batchsize bTrace} {
+  set i 0
+  set more 1
+  set nerr 0
+  set pct 00.0
+  set max [db one {SELECT nEntry FROM sqlite_btreeinfo('main')
+                    WHERE name=$idxname}]
+  puts -nonewline "$idxname: $i of $max rows ($pct%)\r"
+  flush stdout
+  if {$bTrace} {
+    set sql {SELECT errmsg, current_key AS key,
+                    CASE WHEN rowid=1 THEN scanner_sql END AS traceOut
+               FROM incremental_index_check($idxname)
+              WHERE after_key=$key
+              LIMIT $batchsize}
+  } else {
+    set sql {SELECT errmsg, current_key AS key, NULL AS traceOut
+               FROM incremental_index_check($idxname)
+              WHERE after_key=$key
+              LIMIT $batchsize}
+  }
+  while {$more} {
+    set more 0
+    db eval $sql {
+      set more 1
+      if {$errmsg!=""} {
+        incr nerr
+        puts "$idxname: key($key): $errmsg"
+      } elseif {$traceOut!=""} {
+        puts "$idxname: $traceOut"
+      }
+      incr i
+      
+    }
+    set x [format {%.1f} [expr {($i*100.0)/$max}]]
+    if {$x!=$pct} {
+      puts -nonewline "$idxname: $i of $max rows ($pct%)\r"
+      flush stdout
+      set pct $x
+    }
+  }
+  puts "$idxname: $nerr errors out of $i entries"
+}
+
+# Print a usage message on standard error, then quit.
+#
+proc usage {} {
+  set argv0 [file rootname [file tail [info nameofexecutable]]]
+  puts stderr "Usage: $argv0 OPTIONS database-filename"
+  puts stderr {
+Do sanity checking on a live SQLite3 database file specified by the
+"database-filename" argument.
+
+Options:
+
+   --batchsize N     Number of rows to check per transaction
+
+   --freelist        Perform a freelist check
+
+   --index NAME      Run a check of the index NAME
+
+   --summary         Print summary information about the database
+
+   --table NAME      Run a check of all indexes for table NAME
+
+   --tclsh           Run the built-in TCL interpreter (for debugging)
+
+   --trace           (Debugging only:) Output trace information on the scan
+
+   --version         Show the version number of SQLite
+}
+  exit 1
+}
+
+set file_to_analyze {}
+append argv {}
+set bFreelistCheck 0
+set bSummary 0
+set zIndex {}
+set zTable {}
+set batchsize 1000
+set bAll 1
+set bTrace 0
+set argc [llength $argv]
+for {set i 0} {$i<$argc} {incr i} {
+  set arg [lindex $argv $i]
+  if {[regexp {^-+tclsh$} $arg]} {
+    tclsh
+    exit 0
+  }
+  if {[regexp {^-+version$} $arg]} {
+    sqlite3 mem :memory:
+    puts [mem one {SELECT sqlite_version()||' '||sqlite_source_id()}]
+    mem close
+    exit 0
+  }
+  if {[regexp {^-+freelist$} $arg]} {
+    set bFreelistCheck 1
+    set bAll 0
+    continue
+  }
+  if {[regexp {^-+summary$} $arg]} {
+    set bSummary 1
+    set bAll 0
+    continue
+  }
+  if {[regexp {^-+trace$} $arg]} {
+    set bTrace 1
+    continue
+  }
+  if {[regexp {^-+batchsize$} $arg]} {
+    incr i
+    if {$i>=$argc} {
+      puts stderr "missing argument on $arg"
+      exit 1
+    }
+    set batchsize [lindex $argv $i]
+    continue
+  }
+  if {[regexp {^-+index$} $arg]} {
+    incr i
+    if {$i>=$argc} {
+      puts stderr "missing argument on $arg"
+      exit 1
+    }
+    set zIndex [lindex $argv $i]
+    set bAll 0
+    continue
+  }
+  if {[regexp {^-+table$} $arg]} {
+    incr i
+    if {$i>=$argc} {
+      puts stderr "missing argument on $arg"
+      exit 1
+    }
+    set zTable [lindex $argv $i]
+    set bAll 0
+    continue
+  }
+  if {[regexp {^-} $arg]} {
+    puts stderr "Unknown option: $arg"
+    usage
+  }
+  if {$file_to_analyze!=""} {
+    usage
+  } else {
+    set file_to_analyze $arg
+  }
+}
+if {$file_to_analyze==""} usage
+
+# If a TCL script is specified on the command-line, then run that
+# script.
+#
+if {[file extension $file_to_analyze]==".tcl"} {
+  source $file_to_analyze
+  exit 0
+}
+
+set root_filename $file_to_analyze
+regexp {^file:(//)?([^?]*)} $file_to_analyze all x1 root_filename
+if {![file exists $root_filename]} {
+  puts stderr "No such file: $root_filename"
+  exit 1
+}
+if {![file readable $root_filename]} {
+  puts stderr "File is not readable: $root_filename"
+  exit 1
+}
+
+if {[catch {sqlite3 db $file_to_analyze} res]} {
+  puts stderr "Cannot open datababase $root_filename: $res"
+  exit 1
+}
+
+if {$bFreelistCheck || $bAll} {
+  puts -nonewline "freelist-check: "
+  flush stdout
+  db eval BEGIN
+  puts [db one {SELECT checkfreelist('main')}]
+  db eval END
+}
+if {$bSummary} {
+  set scale 0
+  set pgsz [db one {PRAGMA page_size}]
+  db eval {SELECT nPage*$pgsz AS sz, name, tbl_name
+             FROM sqlite_btreeinfo
+            WHERE type='index'
+            ORDER BY 1 DESC, name} {
+    if {$scale==0} {
+      if {$sz>10000000} {
+        set scale 1000000.0
+        set unit MB
+      } else {
+        set scale 1000.0
+        set unit KB
+      }
+    }
+    puts [format {%7.1f %s index %s of table %s} \
+            [expr {$sz/$scale}] $unit $name $tbl_name]
+  }
+}
+if {$zIndex!=""} {
+  check_index $zIndex $batchsize $bTrace
+}
+if {$zTable!=""} {
+  foreach idx [db eval {SELECT name FROM sqlite_master
+                         WHERE type='index' AND rootpage>0
+                           AND tbl_name=$zTable}] {
+    check_index $idx $batchsize $bTrace
+  }
+}
+if {$bAll} {
+  set allidx [db eval {SELECT name FROM sqlite_btreeinfo('main')
+                        WHERE type='index' AND rootpage>0
+                        ORDER BY nEntry}]
+  foreach idx $allidx {
+    check_index $idx $batchsize $bTrace
+  }
+}
diff --git a/ext/repair/test/README.md b/ext/repair/test/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..8cc954adf5e24ad4df1a2c65be4ecd4f606237d6
--- /dev/null
+++ b/ext/repair/test/README.md
@@ -0,0 +1,13 @@
+To run these tests, first build sqlite3_checker:
+
+
+>     make sqlite3_checker
+
+
+Then run the "test.tcl" script using:
+
+
+>     ./sqlite3_checker --test $path/test.tcl
+
+
+Optionally add the full pathnames of individual *.test modules
diff --git a/ext/repair/test/checkfreelist01.test b/ext/repair/test/checkfreelist01.test
new file mode 100644
index 0000000000000000000000000000000000000000..7e2dd51c3730e399cc923bf37a1ab61ee8e7d181
--- /dev/null
+++ b/ext/repair/test/checkfreelist01.test
@@ -0,0 +1,92 @@
+# 2017-10-11
+
+set testprefix checkfreelist
+
+do_execsql_test 1.0 {
+  PRAGMA page_size=1024;
+  CREATE TABLE t1(a, b);
+}
+
+do_execsql_test 1.2 { SELECT checkfreelist('main') } {ok}
+do_execsql_test 1.3 {
+  WITH s(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<10000
+  )
+  INSERT INTO t1 SELECT randomblob(400), randomblob(400) FROM s;
+  DELETE FROM t1 WHERE rowid%3;
+  PRAGMA freelist_count;
+} {6726}
+
+do_execsql_test 1.4 { SELECT checkfreelist('main') } {ok}
+do_execsql_test 1.5 {
+  WITH freelist_trunk(i, d, n) AS (
+    SELECT 1, NULL, sqlite_readint32(data, 32) FROM sqlite_dbpage WHERE pgno=1
+      UNION ALL
+    SELECT n, data, sqlite_readint32(data) 
+    FROM freelist_trunk, sqlite_dbpage WHERE pgno=n
+  )
+  SELECT i FROM freelist_trunk WHERE i!=1;
+} {
+  10009 9715 9343 8969 8595 8222 7847 7474 7102 6727 6354 5982 5608 5234
+  4860 4487 4112 3740 3367 2992 2619 2247 1872 1499 1125 752 377 5
+}
+
+do_execsql_test 1.6 { SELECT checkfreelist('main') } {ok}
+
+proc set_int {blob idx newval} {
+  binary scan $blob I* ints
+  lset ints $idx $newval
+  binary format I* $ints
+}
+db func set_int set_int
+
+proc get_int {blob idx} {
+  binary scan $blob I* ints
+  lindex $ints $idx
+}
+db func get_int get_int
+
+do_execsql_test 1.7 {
+  BEGIN;
+    UPDATE sqlite_dbpage 
+      SET data = set_int(data, 1, get_int(data, 1)-1) 
+      WHERE pgno=4860;
+    SELECT checkfreelist('main');
+  ROLLBACK;
+} {{free-list count mismatch: actual=6725 header=6726}}
+
+do_execsql_test 1.8 {
+  BEGIN;
+    UPDATE sqlite_dbpage 
+      SET data = set_int(data, 5, (SELECT * FROM pragma_page_count)+1)
+      WHERE pgno=4860;
+    SELECT checkfreelist('main');
+  ROLLBACK;
+} {{leaf page 10092 is out of range (child 3 of trunk page 4860)}}
+
+do_execsql_test 1.9 {
+  BEGIN;
+    UPDATE sqlite_dbpage 
+      SET data = set_int(data, 5, 0)
+      WHERE pgno=4860;
+    SELECT checkfreelist('main');
+  ROLLBACK;
+} {{leaf page 0 is out of range (child 3 of trunk page 4860)}}
+
+do_execsql_test 1.10 {
+  BEGIN;
+    UPDATE sqlite_dbpage 
+      SET data = set_int(data, get_int(data, 1)+1, 0)
+      WHERE pgno=5;
+    SELECT checkfreelist('main');
+  ROLLBACK;
+} {{leaf page 0 is out of range (child 247 of trunk page 5)}}
+
+do_execsql_test 1.11 {
+  BEGIN;
+    UPDATE sqlite_dbpage 
+      SET data = set_int(data, 1, 249)
+      WHERE pgno=5;
+    SELECT checkfreelist('main');
+  ROLLBACK;
+} {{leaf count out of range (249) on trunk page 5}}
diff --git a/ext/repair/test/checkindex01.test b/ext/repair/test/checkindex01.test
new file mode 100644
index 0000000000000000000000000000000000000000..97973aee71613fdee9b097505685c6c922c37a30
--- /dev/null
+++ b/ext/repair/test/checkindex01.test
@@ -0,0 +1,349 @@
+# 2017-10-11
+#
+set testprefix checkindex
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b);
+  CREATE INDEX i1 ON t1(a);
+  INSERT INTO t1 VALUES('one', 2);
+  INSERT INTO t1 VALUES('two', 4);
+  INSERT INTO t1 VALUES('three', 6);
+  INSERT INTO t1 VALUES('four', 8);
+  INSERT INTO t1 VALUES('five', 10);
+
+  CREATE INDEX i2 ON t1(a DESC);
+} {}
+
+proc incr_index_check {idx nStep} {
+  set Q {
+    SELECT errmsg, current_key FROM incremental_index_check($idx, $after)
+    LIMIT $nStep
+  }
+
+  set res [list]
+  while {1} {
+    unset -nocomplain current_key
+    set res1 [db eval $Q]
+    if {[llength $res1]==0} break
+    set res [concat $res $res1]
+    set after [lindex $res end]
+  }
+
+  return $res
+}
+
+proc do_index_check_test {tn idx res} {
+  uplevel [list do_execsql_test $tn.1 "
+    SELECT errmsg, current_key FROM incremental_index_check('$idx');
+  " $res]
+
+  uplevel [list do_test $tn.2 "incr_index_check $idx 1" [list {*}$res]]
+  uplevel [list do_test $tn.3 "incr_index_check $idx 2" [list {*}$res]]
+  uplevel [list do_test $tn.4 "incr_index_check $idx 5" [list {*}$res]]
+}
+
+
+do_execsql_test 1.2.1 {
+  SELECT rowid, errmsg IS NULL, current_key FROM incremental_index_check('i1');
+} {
+  1 1 'five',5
+  2 1 'four',4
+  3 1 'one',1
+  4 1 'three',3
+  5 1 'two',2
+}
+do_execsql_test 1.2.2 {
+  SELECT errmsg IS NULL, current_key, index_name, after_key, scanner_sql
+    FROM incremental_index_check('i1') LIMIT 1;
+} {
+  1
+  'five',5
+  i1
+  {}
+  {SELECT (SELECT a IS i.i0 FROM 't1' AS t WHERE "rowid" COLLATE BINARY IS i.i1), quote(i0)||','||quote(i1) FROM (SELECT (a) AS i0, ("rowid" COLLATE BINARY) AS i1 FROM 't1' INDEXED BY 'i1' ORDER BY 1,2) AS i}
+}
+
+do_index_check_test 1.3 i1 {
+  {} 'five',5
+  {} 'four',4
+  {} 'one',1
+  {} 'three',3
+  {} 'two',2
+}
+
+do_index_check_test 1.4 i2 {
+  {} 'two',2
+  {} 'three',3
+  {} 'one',1
+  {} 'four',4
+  {} 'five',5
+}
+
+do_test 1.5 {
+  set tblroot [db one { SELECT rootpage FROM sqlite_master WHERE name='t1' }]
+  sqlite3_imposter db main $tblroot {CREATE TABLE xt1(a,b)}
+  db eval {
+    UPDATE xt1 SET a='six' WHERE rowid=3;
+    DELETE FROM xt1 WHERE rowid = 5;
+  }
+  sqlite3_imposter db main
+} {}
+
+do_index_check_test 1.6 i1 {
+  {row missing} 'five',5
+  {} 'four',4
+  {} 'one',1
+  {row data mismatch} 'three',3
+  {} 'two',2
+}
+
+do_index_check_test 1.7 i2 {
+  {} 'two',2
+  {row data mismatch} 'three',3
+  {} 'one',1
+  {} 'four',4
+  {row missing} 'five',5
+}
+
+#--------------------------------------------------------------------------
+do_execsql_test 2.0 {
+
+  CREATE TABLE t2(a INTEGER PRIMARY KEY, b, c, d);
+
+  INSERT INTO t2 VALUES(1, NULL, 1, 1);
+  INSERT INTO t2 VALUES(2, 1, NULL, 1);
+  INSERT INTO t2 VALUES(3, 1, 1, NULL);
+
+  INSERT INTO t2 VALUES(4, 2, 2, 1);
+  INSERT INTO t2 VALUES(5, 2, 2, 2);
+  INSERT INTO t2 VALUES(6, 2, 2, 3);
+
+  INSERT INTO t2 VALUES(7, 2, 2, 1);
+  INSERT INTO t2 VALUES(8, 2, 2, 2);
+  INSERT INTO t2 VALUES(9, 2, 2, 3);
+
+  CREATE INDEX i3 ON t2(b, c, d);
+  CREATE INDEX i4 ON t2(b DESC, c DESC, d DESC);
+  CREATE INDEX i5 ON t2(d, c DESC, b);
+} {}
+
+do_index_check_test 2.1 i3 {
+  {} NULL,1,1,1 
+  {} 1,NULL,1,2 
+  {} 1,1,NULL,3 
+  {} 2,2,1,4 
+  {} 2,2,1,7 
+  {} 2,2,2,5
+  {} 2,2,2,8 
+  {} 2,2,3,6 
+  {} 2,2,3,9
+}
+
+do_index_check_test 2.2 i4 {
+  {} 2,2,3,6 
+  {} 2,2,3,9
+  {} 2,2,2,5
+  {} 2,2,2,8 
+  {} 2,2,1,4 
+  {} 2,2,1,7 
+  {} 1,1,NULL,3 
+  {} 1,NULL,1,2 
+  {} NULL,1,1,1 
+}
+
+do_index_check_test 2.3 i5 {
+  {} NULL,1,1,3 
+  {} 1,2,2,4 
+  {} 1,2,2,7 
+  {} 1,1,NULL,1 
+  {} 1,NULL,1,2 
+  {} 2,2,2,5 
+  {} 2,2,2,8 
+  {} 3,2,2,6 
+  {} 3,2,2,9
+}
+
+#--------------------------------------------------------------------------
+do_execsql_test 3.0 {
+
+  CREATE TABLE t3(w, x, y, z PRIMARY KEY) WITHOUT ROWID;
+  CREATE INDEX t3wxy ON t3(w, x, y);
+  CREATE INDEX t3wxy2 ON t3(w DESC, x DESC, y DESC);
+
+  INSERT INTO t3 VALUES(NULL, NULL, NULL, 1);
+  INSERT INTO t3 VALUES(NULL, NULL, NULL, 2);
+  INSERT INTO t3 VALUES(NULL, NULL, NULL, 3);
+
+  INSERT INTO t3 VALUES('a', NULL, NULL, 4);
+  INSERT INTO t3 VALUES('a', NULL, NULL, 5);
+  INSERT INTO t3 VALUES('a', NULL, NULL, 6);
+
+  INSERT INTO t3 VALUES('a', 'b', NULL, 7);
+  INSERT INTO t3 VALUES('a', 'b', NULL, 8);
+  INSERT INTO t3 VALUES('a', 'b', NULL, 9);
+
+} {}
+
+do_index_check_test 3.1 t3wxy {
+  {} NULL,NULL,NULL,1 {} NULL,NULL,NULL,2 {} NULL,NULL,NULL,3 
+  {} 'a',NULL,NULL,4  {} 'a',NULL,NULL,5  {} 'a',NULL,NULL,6 
+  {} 'a','b',NULL,7   {} 'a','b',NULL,8   {} 'a','b',NULL,9 
+}
+do_index_check_test 3.2 t3wxy2 {
+  {} 'a','b',NULL,7   {} 'a','b',NULL,8   {} 'a','b',NULL,9 
+  {} 'a',NULL,NULL,4  {} 'a',NULL,NULL,5  {} 'a',NULL,NULL,6 
+  {} NULL,NULL,NULL,1 {} NULL,NULL,NULL,2 {} NULL,NULL,NULL,3 
+}
+
+#--------------------------------------------------------------------------
+# Test with an index that uses non-default collation sequences.
+#
+do_execsql_test 4.0 {
+  CREATE TABLE t4(a INTEGER PRIMARY KEY, c1 TEXT, c2 TEXT);
+  INSERT INTO t4 VALUES(1, 'aaa', 'bbb');
+  INSERT INTO t4 VALUES(2, 'AAA', 'CCC');
+  INSERT INTO t4 VALUES(3, 'aab', 'ddd');
+  INSERT INTO t4 VALUES(4, 'AAB', 'EEE');
+
+  CREATE INDEX t4cc ON t4(c1 COLLATE nocase, c2 COLLATE nocase);
+}
+
+do_index_check_test 4.1 t4cc {
+  {} 'aaa','bbb',1 
+  {} 'AAA','CCC',2 
+  {} 'aab','ddd',3 
+  {} 'AAB','EEE',4
+}
+
+do_test 4.2 {
+  set tblroot [db one { SELECT rootpage FROM sqlite_master WHERE name='t4' }]
+  sqlite3_imposter db main $tblroot \
+     {CREATE TABLE xt4(a INTEGER PRIMARY KEY, c1 TEXT, c2 TEXT)}
+
+  db eval {
+    UPDATE xt4 SET c1='hello' WHERE rowid=2;
+    DELETE FROM xt4 WHERE rowid = 3;
+  }
+  sqlite3_imposter db main
+} {}
+
+do_index_check_test 4.3 t4cc {
+  {} 'aaa','bbb',1 
+  {row data mismatch} 'AAA','CCC',2 
+  {row missing} 'aab','ddd',3 
+  {} 'AAB','EEE',4
+}
+
+#--------------------------------------------------------------------------
+# Test an index on an expression.
+#
+do_execsql_test 5.0 {
+  CREATE TABLE t5(x INTEGER PRIMARY KEY, y TEXT, UNIQUE(y));
+  INSERT INTO t5 VALUES(1, '{"x":1, "y":1}');
+  INSERT INTO t5 VALUES(2, '{"x":2, "y":2}');
+  INSERT INTO t5 VALUES(3, '{"x":3, "y":3}');
+  INSERT INTO t5 VALUES(4, '{"w":4, "z":4}');
+  INSERT INTO t5 VALUES(5, '{"x":5, "y":5}');
+
+  CREATE INDEX t5x ON t5( json_extract(y, '$.x') );
+  CREATE INDEX t5y ON t5( json_extract(y, '$.y') DESC );
+}
+
+do_index_check_test 5.1.1 t5x {
+  {} NULL,4 {} 1,1 {} 2,2 {} 3,3 {} 5,5
+}
+
+do_index_check_test 5.1.2 t5y {
+  {} 5,5 {} 3,3 {} 2,2 {} 1,1 {} NULL,4
+}
+
+do_index_check_test 5.1.3 sqlite_autoindex_t5_1 {
+  {} {'{"w":4, "z":4}',4} 
+  {} {'{"x":1, "y":1}',1} 
+  {} {'{"x":2, "y":2}',2} 
+  {} {'{"x":3, "y":3}',3} 
+  {} {'{"x":5, "y":5}',5}
+}
+
+do_test 5.2 {
+  set tblroot [db one { SELECT rootpage FROM sqlite_master WHERE name='t5' }]
+  sqlite3_imposter db main $tblroot \
+      {CREATE TABLE xt5(a INTEGER PRIMARY KEY, c1 TEXT);}
+  db eval {
+    UPDATE xt5 SET c1='{"x":22, "y":11}' WHERE rowid=1;
+    DELETE FROM xt5 WHERE rowid = 4;
+  }
+  sqlite3_imposter db main
+} {}
+
+do_index_check_test 5.3.1 t5x {
+  {row missing} NULL,4 
+  {row data mismatch} 1,1 
+  {} 2,2 
+  {} 3,3 
+  {} 5,5
+}
+
+do_index_check_test 5.3.2 sqlite_autoindex_t5_1 {
+  {row missing} {'{"w":4, "z":4}',4} 
+  {row data mismatch} {'{"x":1, "y":1}',1} 
+  {} {'{"x":2, "y":2}',2} 
+  {} {'{"x":3, "y":3}',3} 
+  {} {'{"x":5, "y":5}',5}
+}
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test 6.0 {
+  CREATE TABLE t6(x INTEGER PRIMARY KEY, y, z);
+  CREATE INDEX t6x1 ON t6(y, /* one,two,three */ z);
+  CREATE INDEX t6x2 ON t6(z, -- hello,world,
+  y);
+
+  CREATE INDEX t6x3 ON t6(z -- hello,world
+  , y);
+
+  INSERT INTO t6 VALUES(1, 2, 3);
+  INSERT INTO t6 VALUES(4, 5, 6);
+}
+
+do_index_check_test 6.1 t6x1 {
+  {} 2,3,1 
+  {} 5,6,4
+}
+do_index_check_test 6.2 t6x2 {
+  {} 3,2,1 
+  {} 6,5,4
+}
+do_index_check_test 6.2 t6x3 {
+  {} 3,2,1 
+  {} 6,5,4
+}
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test 7.0 {
+  CREATE TABLE t7(x INTEGER PRIMARY KEY, y, z);
+  INSERT INTO t7 VALUES(1, 1, 1);
+  INSERT INTO t7 VALUES(2, 2, 0);
+  INSERT INTO t7 VALUES(3, 3, 1);
+  INSERT INTO t7 VALUES(4, 4, 0);
+
+  CREATE INDEX t7i1 ON t7(y) WHERE z=1;
+  CREATE INDEX t7i2 ON t7(y) /* hello,world */ WHERE z=1;
+  CREATE INDEX t7i3 ON t7(y) WHERE -- yep 
+  z=1;
+  CREATE INDEX t7i4 ON t7(y) WHERE z=1 -- yep;
+}
+do_index_check_test 7.1 t7i1 {
+  {} 1,1 {} 3,3
+}
+do_index_check_test 7.2 t7i2 {
+  {} 1,1 {} 3,3
+}
+do_index_check_test 7.3 t7i3 {
+  {} 1,1 {} 3,3
+}
+do_index_check_test 7.4 t7i4 {
+  {} 1,1 {} 3,3
+}
diff --git a/ext/repair/test/test.tcl b/ext/repair/test/test.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..c073bb73c5a6d80d053d938d752ff619181d6263
--- /dev/null
+++ b/ext/repair/test/test.tcl
@@ -0,0 +1,67 @@
+# Run this script using
+#
+#       sqlite3_checker --test $thisscript $testscripts
+#
+# The $testscripts argument is optional.  If omitted, all *.test files
+# in the same directory as $thisscript are run.
+#
+set NTEST 0
+set NERR  0
+
+
+# Invoke the do_test procedure to run a single test
+#
+# The $expected parameter is the expected result.  The result is the return
+# value from the last TCL command in $cmd.
+#
+# Normally, $expected must match exactly.  But if $expected is of the form
+# "/regexp/" then regular expression matching is used.  If $expected is
+# "~/regexp/" then the regular expression must NOT match.  If $expected is
+# of the form "#/value-list/" then each term in value-list must be numeric
+# and must approximately match the corresponding numeric term in $result.
+# Values must match within 10%.  Or if the $expected term is A..B then the
+# $result term must be in between A and B.
+#
+proc do_test {name cmd expected} {
+  if {[info exists ::testprefix]} {
+    set name "$::testprefix$name"
+  }
+
+  incr ::NTEST
+  puts -nonewline $name...
+  flush stdout
+
+  if {[catch {uplevel #0 "$cmd;\n"} result]} {
+    puts -nonewline $name...
+    puts "\nError: $result"
+    incr ::NERR
+  } else {
+    set ok [expr {[string compare $result $expected]==0}]
+    if {!$ok} {
+      puts "\n!  $name expected: \[$expected\]\n! $name got:      \[$result\]"
+      incr ::NERR
+    } else {
+      puts " Ok"
+    }
+  }
+  flush stdout
+}
+
+#
+#   do_execsql_test TESTNAME SQL RES
+#
+proc do_execsql_test {testname sql {result {}}} {
+  uplevel [list do_test $testname [list db eval $sql] [list {*}$result]]
+}
+
+if {[llength $argv]==0} {
+  set dir [file dirname $argv0]
+  set argv [glob -nocomplain $dir/*.test]
+}
+foreach testfile $argv {
+  file delete -force test.db
+  sqlite3 db test.db
+  source $testfile
+  catch {db close}
+}
+puts "$NERR errors out of $NTEST tests"
diff --git a/ext/rtree/README b/ext/rtree/README
new file mode 100644
index 0000000000000000000000000000000000000000..3736f45c5fd968542a4d201a2274dd09b66b7865
--- /dev/null
+++ b/ext/rtree/README
@@ -0,0 +1,120 @@
+
+This directory contains an SQLite extension that implements a virtual 
+table type that allows users to create, query and manipulate r-tree[1] 
+data structures inside of SQLite databases. Users create, populate 
+and query r-tree structures using ordinary SQL statements.
+
+    1.  SQL Interface
+
+        1.1  Table Creation
+        1.2  Data Manipulation
+        1.3  Data Querying
+        1.4  Introspection and Analysis
+
+    2.  Compilation and Deployment
+
+    3.  References
+
+
+1. SQL INTERFACE
+
+  1.1 Table Creation.
+
+    All r-tree virtual tables have an odd number of columns between
+    3 and 11. Unlike regular SQLite tables, r-tree tables are strongly 
+    typed. 
+
+    The leftmost column is always the pimary key and contains 64-bit 
+    integer values. Each subsequent column contains a 32-bit real
+    value. For each pair of real values, the first (leftmost) must be 
+    less than or equal to the second. R-tree tables may be 
+    constructed using the following syntax:
+
+      CREATE VIRTUAL TABLE <name> USING rtree(<column-names>)
+
+    For example:
+
+      CREATE VIRTUAL TABLE boxes USING rtree(boxno, xmin, xmax, ymin, ymax);
+      INSERT INTO boxes VALUES(1, 1.0, 3.0, 2.0, 4.0);
+
+    Constructing a virtual r-tree table <name> creates the following three
+    real tables in the database to store the data structure:
+
+      <name>_node
+      <name>_rowid
+      <name>_parent
+
+    Dropping or modifying the contents of these tables directly will
+    corrupt the r-tree structure. To delete an r-tree from a database,
+    use a regular DROP TABLE statement:
+
+      DROP TABLE <name>;
+
+    Dropping the main r-tree table automatically drops the automatically
+    created tables. 
+
+  1.2 Data Manipulation (INSERT, UPDATE, DELETE).
+
+    The usual INSERT, UPDATE or DELETE syntax is used to manipulate data
+    stored in an r-tree table. Please note the following:
+
+      * Inserting a NULL value into the primary key column has the
+        same effect as inserting a NULL into an INTEGER PRIMARY KEY
+        column of a regular table. The system automatically assigns
+        an unused integer key value to the new record. Usually, this
+        is one greater than the largest primary key value currently
+        present in the table.
+
+      * Attempting to insert a duplicate primary key value fails with
+        an SQLITE_CONSTRAINT error.
+
+      * Attempting to insert or modify a record such that the value
+        stored in the (N*2)th column is greater than that stored in
+        the (N*2+1)th column fails with an SQLITE_CONSTRAINT error.
+
+      * When a record is inserted, values are always converted to 
+        the required type (64-bit integer or 32-bit real) as if they
+        were part of an SQL CAST expression. Non-numeric strings are
+        converted to zero.
+
+  1.3 Queries.
+
+    R-tree tables may be queried using all of the same SQL syntax supported
+    by regular tables. However, some query patterns are more efficient
+    than others.
+
+    R-trees support fast lookup by primary key value (O(logN), like 
+    regular tables).
+
+    Any combination of equality and range (<, <=, >, >=) constraints
+    on spatial data columns may be used to optimize other queries. This
+    is the key advantage to using r-tree tables instead of creating 
+    indices on regular tables.
+
+  1.4 Introspection and Analysis.
+
+    TODO: Describe rtreenode() and rtreedepth() functions.
+
+
+2. COMPILATION AND USAGE
+
+  The easiest way to compile and use the RTREE extension is to build
+  and use it as a dynamically loadable SQLite extension. To do this
+  using gcc on *nix:
+
+    gcc -shared rtree.c -o libSqliteRtree.so
+
+  You may need to add "-I" flags so that gcc can find sqlite3ext.h
+  and sqlite3.h. The resulting shared lib, libSqliteRtree.so, may be
+  loaded into sqlite in the same way as any other dynamicly loadable
+  extension.
+
+
+3. REFERENCES
+
+  [1]  Atonin Guttman, "R-trees - A Dynamic Index Structure For Spatial 
+       Searching", University of California Berkeley, 1984.
+
+  [2]  Norbert Beckmann, Hans-Peter Kriegel, Ralf Schneider, Bernhard Seeger,
+       "The R*-tree: An Efficient and Robust Access Method for Points and
+       Rectangles", Universitaet Bremen, 1990.
diff --git a/ext/rtree/geopoly.c b/ext/rtree/geopoly.c
new file mode 100644
index 0000000000000000000000000000000000000000..3e9c2a2713cba417d8ab8419d00c47bb0d3e7567
--- /dev/null
+++ b/ext/rtree/geopoly.c
@@ -0,0 +1,1839 @@
+/*
+** 2018-05-25
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This file implements an alternative R-Tree virtual table that
+** uses polygons to express the boundaries of 2-dimensional objects.
+**
+** This file is #include-ed onto the end of "rtree.c" so that it has
+** access to all of the R-Tree internals.
+*/
+#include <stdlib.h>
+
+/* Enable -DGEOPOLY_ENABLE_DEBUG for debugging facilities */
+#ifdef GEOPOLY_ENABLE_DEBUG
+  static int geo_debug = 0;
+# define GEODEBUG(X) if(geo_debug)printf X
+#else
+# define GEODEBUG(X)
+#endif
+
+/* Character class routines */
+#ifdef sqlite3Isdigit
+   /* Use the SQLite core versions if this routine is part of the
+   ** SQLite amalgamation */
+#  define safe_isdigit(x)  sqlite3Isdigit(x)
+#  define safe_isalnum(x)  sqlite3Isalnum(x)
+#  define safe_isxdigit(x) sqlite3Isxdigit(x)
+#else
+   /* Use the standard library for separate compilation */
+#include <ctype.h>  /* amalgamator: keep */
+#  define safe_isdigit(x)  isdigit((unsigned char)(x))
+#  define safe_isalnum(x)  isalnum((unsigned char)(x))
+#  define safe_isxdigit(x) isxdigit((unsigned char)(x))
+#endif
+
+#ifndef JSON_NULL   /* The following stuff repeats things found in json1 */
+/*
+** Growing our own isspace() routine this way is twice as fast as
+** the library isspace() function.
+*/
+static const char geopolyIsSpace[] = {
+  0, 0, 0, 0, 0, 0, 0, 0,     0, 1, 1, 0, 0, 1, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
+  1, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
+};
+#define fast_isspace(x) (geopolyIsSpace[(unsigned char)x])
+#endif /* JSON NULL - back to original code */
+
+/* Compiler and version */
+#ifndef GCC_VERSION
+#if defined(__GNUC__) && !defined(SQLITE_DISABLE_INTRINSIC)
+# define GCC_VERSION (__GNUC__*1000000+__GNUC_MINOR__*1000+__GNUC_PATCHLEVEL__)
+#else
+# define GCC_VERSION 0
+#endif
+#endif
+#ifndef MSVC_VERSION
+#if defined(_MSC_VER) && !defined(SQLITE_DISABLE_INTRINSIC)
+# define MSVC_VERSION _MSC_VER
+#else
+# define MSVC_VERSION 0
+#endif
+#endif
+
+/* Datatype for coordinates
+*/
+typedef float GeoCoord;
+
+/*
+** Internal representation of a polygon.
+**
+** The polygon consists of a sequence of vertexes.  There is a line
+** segment between each pair of vertexes, and one final segment from
+** the last vertex back to the first.  (This differs from the GeoJSON
+** standard in which the final vertex is a repeat of the first.)
+**
+** The polygon follows the right-hand rule.  The area to the right of
+** each segment is "outside" and the area to the left is "inside".
+**
+** The on-disk representation consists of a 4-byte header followed by
+** the values.  The 4-byte header is:
+**
+**      encoding    (1 byte)   0=big-endian, 1=little-endian
+**      nvertex     (3 bytes)  Number of vertexes as a big-endian integer
+**
+** Enough space is allocated for 4 coordinates, to work around over-zealous
+** warnings coming from some compiler (notably, clang). In reality, the size
+** of each GeoPoly memory allocate is adjusted as necessary so that the
+** GeoPoly.a[] array at the end is the appropriate size.
+*/
+typedef struct GeoPoly GeoPoly;
+struct GeoPoly {
+  int nVertex;          /* Number of vertexes */
+  unsigned char hdr[4]; /* Header for on-disk representation */
+  GeoCoord a[8];        /* 2*nVertex values. X (longitude) first, then Y */
+};
+
+/* The size of a memory allocation needed for a GeoPoly object sufficient
+** to hold N coordinate pairs.
+*/
+#define GEOPOLY_SZ(N)  (sizeof(GeoPoly) + sizeof(GeoCoord)*2*((N)-4))
+
+/* Macros to access coordinates of a GeoPoly.
+** We have to use these macros, rather than just say p->a[i] in order
+** to silence (incorrect) UBSAN warnings if the array index is too large.
+*/
+#define GeoX(P,I)  (((GeoCoord*)(P)->a)[(I)*2])
+#define GeoY(P,I)  (((GeoCoord*)(P)->a)[(I)*2+1])
+
+
+/*
+** State of a parse of a GeoJSON input.
+*/
+typedef struct GeoParse GeoParse;
+struct GeoParse {
+  const unsigned char *z;   /* Unparsed input */
+  int nVertex;              /* Number of vertexes in a[] */
+  int nAlloc;               /* Space allocated to a[] */
+  int nErr;                 /* Number of errors encountered */
+  GeoCoord *a;          /* Array of vertexes.  From sqlite3_malloc64() */
+};
+
+/* Do a 4-byte byte swap */
+static void geopolySwab32(unsigned char *a){
+  unsigned char t = a[0];
+  a[0] = a[3];
+  a[3] = t;
+  t = a[1];
+  a[1] = a[2];
+  a[2] = t;
+}
+
+/* Skip whitespace.  Return the next non-whitespace character. */
+static char geopolySkipSpace(GeoParse *p){
+  while( fast_isspace(p->z[0]) ) p->z++;
+  return p->z[0];
+}
+
+/* Parse out a number.  Write the value into *pVal if pVal!=0.
+** return non-zero on success and zero if the next token is not a number.
+*/
+static int geopolyParseNumber(GeoParse *p, GeoCoord *pVal){
+  char c = geopolySkipSpace(p);
+  const unsigned char *z = p->z;
+  int j = 0;
+  int seenDP = 0;
+  int seenE = 0;
+  if( c=='-' ){
+    j = 1;
+    c = z[j];
+  }
+  if( c=='0' && z[j+1]>='0' && z[j+1]<='9' ) return 0;
+  for(;; j++){
+    c = z[j];
+    if( safe_isdigit(c) ) continue;
+    if( c=='.' ){
+      if( z[j-1]=='-' ) return 0;
+      if( seenDP ) return 0;
+      seenDP = 1;
+      continue;
+    }
+    if( c=='e' || c=='E' ){
+      if( z[j-1]<'0' ) return 0;
+      if( seenE ) return -1;
+      seenDP = seenE = 1;
+      c = z[j+1];
+      if( c=='+' || c=='-' ){
+        j++;
+        c = z[j+1];
+      }
+      if( c<'0' || c>'9' ) return 0;
+      continue;
+    }
+    break;
+  }
+  if( z[j-1]<'0' ) return 0;
+  if( pVal ){
+#ifdef SQLITE_AMALGAMATION
+     /* The sqlite3AtoF() routine is much much faster than atof(), if it
+     ** is available */
+     double r;
+     (void)sqlite3AtoF((const char*)p->z, &r, j, SQLITE_UTF8);
+     *pVal = r;
+#else
+     *pVal = (GeoCoord)atof((const char*)p->z);
+#endif
+  }
+  p->z += j;
+  return 1;
+}
+
+/*
+** If the input is a well-formed JSON array of coordinates with at least
+** four coordinates and where each coordinate is itself a two-value array,
+** then convert the JSON into a GeoPoly object and return a pointer to
+** that object.
+**
+** If any error occurs, return NULL.
+*/
+static GeoPoly *geopolyParseJson(const unsigned char *z, int *pRc){
+  GeoParse s;
+  int rc = SQLITE_OK;
+  memset(&s, 0, sizeof(s));
+  s.z = z;
+  if( geopolySkipSpace(&s)=='[' ){
+    s.z++;
+    while( geopolySkipSpace(&s)=='[' ){
+      int ii = 0;
+      char c;
+      s.z++;
+      if( s.nVertex>=s.nAlloc ){
+        GeoCoord *aNew;
+        s.nAlloc = s.nAlloc*2 + 16;
+        aNew = sqlite3_realloc64(s.a, s.nAlloc*sizeof(GeoCoord)*2 );
+        if( aNew==0 ){
+          rc = SQLITE_NOMEM;
+          s.nErr++;
+          break;
+        }
+        s.a = aNew;
+      }
+      while( geopolyParseNumber(&s, ii<=1 ? &s.a[s.nVertex*2+ii] : 0) ){
+        ii++;
+        if( ii==2 ) s.nVertex++;
+        c = geopolySkipSpace(&s);
+        s.z++;
+        if( c==',' ) continue;
+        if( c==']' && ii>=2 ) break;
+        s.nErr++;
+        rc = SQLITE_ERROR;
+        goto parse_json_err;
+      }
+      if( geopolySkipSpace(&s)==',' ){
+        s.z++;
+        continue;
+      }
+      break;
+    }
+    if( geopolySkipSpace(&s)==']'
+     && s.nVertex>=4
+     && s.a[0]==s.a[s.nVertex*2-2]
+     && s.a[1]==s.a[s.nVertex*2-1]
+     && (s.z++, geopolySkipSpace(&s)==0)
+    ){
+      GeoPoly *pOut;
+      int x = 1;
+      s.nVertex--;  /* Remove the redundant vertex at the end */
+      pOut = sqlite3_malloc64( GEOPOLY_SZ((sqlite3_int64)s.nVertex) );
+      x = 1;
+      if( pOut==0 ) goto parse_json_err;
+      pOut->nVertex = s.nVertex;
+      memcpy(pOut->a, s.a, s.nVertex*2*sizeof(GeoCoord));
+      pOut->hdr[0] = *(unsigned char*)&x;
+      pOut->hdr[1] = (s.nVertex>>16)&0xff;
+      pOut->hdr[2] = (s.nVertex>>8)&0xff;
+      pOut->hdr[3] = s.nVertex&0xff;
+      sqlite3_free(s.a);
+      if( pRc ) *pRc = SQLITE_OK;
+      return pOut;
+    }else{
+      s.nErr++;
+      rc = SQLITE_ERROR;
+    }
+  }
+parse_json_err:
+  if( pRc ) *pRc = rc;
+  sqlite3_free(s.a);
+  return 0;
+}
+
+/*
+** Given a function parameter, try to interpret it as a polygon, either
+** in the binary format or JSON text.  Compute a GeoPoly object and
+** return a pointer to that object.  Or if the input is not a well-formed
+** polygon, put an error message in sqlite3_context and return NULL.
+*/
+static GeoPoly *geopolyFuncParam(
+  sqlite3_context *pCtx,      /* Context for error messages */
+  sqlite3_value *pVal,        /* The value to decode */
+  int *pRc                    /* Write error here */
+){
+  GeoPoly *p = 0;
+  int nByte;
+  testcase( pCtx==0 );
+  if( sqlite3_value_type(pVal)==SQLITE_BLOB
+   && (nByte = sqlite3_value_bytes(pVal))>=(int)(4+6*sizeof(GeoCoord))
+  ){
+    const unsigned char *a = sqlite3_value_blob(pVal);
+    int nVertex;
+    if( a==0 ){
+      if( pCtx ) sqlite3_result_error_nomem(pCtx);
+      return 0;
+    }
+    nVertex = (a[1]<<16) + (a[2]<<8) + a[3];
+    if( (a[0]==0 || a[0]==1)
+     && (nVertex*2*sizeof(GeoCoord) + 4)==(unsigned int)nByte
+    ){
+      p = sqlite3_malloc64( sizeof(*p) + (nVertex-1)*2*sizeof(GeoCoord) );
+      if( p==0 ){
+        if( pRc ) *pRc = SQLITE_NOMEM;
+        if( pCtx ) sqlite3_result_error_nomem(pCtx);
+      }else{
+        int x = 1;
+        p->nVertex = nVertex;
+        memcpy(p->hdr, a, nByte);
+        if( a[0] != *(unsigned char*)&x ){
+          int ii;
+          for(ii=0; ii<nVertex; ii++){
+            geopolySwab32((unsigned char*)&GeoX(p,ii));
+            geopolySwab32((unsigned char*)&GeoY(p,ii));
+          }
+          p->hdr[0] ^= 1;
+        }
+      }
+    }
+    if( pRc ) *pRc = SQLITE_OK;
+    return p;
+  }else if( sqlite3_value_type(pVal)==SQLITE_TEXT ){
+    const unsigned char *zJson = sqlite3_value_text(pVal);
+    if( zJson==0 ){
+      if( pRc ) *pRc = SQLITE_NOMEM;
+      return 0;
+    }
+    return geopolyParseJson(zJson, pRc);
+  }else{
+    if( pRc ) *pRc = SQLITE_ERROR;
+    return 0;
+  }
+}
+
+/*
+** Implementation of the geopoly_blob(X) function.
+**
+** If the input is a well-formed Geopoly BLOB or JSON string
+** then return the BLOB representation of the polygon.  Otherwise
+** return NULL.
+*/
+static void geopolyBlobFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  GeoPoly *p = geopolyFuncParam(context, argv[0], 0);
+  (void)argc;
+  if( p ){
+    sqlite3_result_blob(context, p->hdr, 
+       4+8*p->nVertex, SQLITE_TRANSIENT);
+    sqlite3_free(p);
+  }
+}
+
+/*
+** SQL function:     geopoly_json(X)
+**
+** Interpret X as a polygon and render it as a JSON array
+** of coordinates.  Or, if X is not a valid polygon, return NULL.
+*/
+static void geopolyJsonFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  GeoPoly *p = geopolyFuncParam(context, argv[0], 0);
+  (void)argc;
+  if( p ){
+    sqlite3 *db = sqlite3_context_db_handle(context);
+    sqlite3_str *x = sqlite3_str_new(db);
+    int i;
+    sqlite3_str_append(x, "[", 1);
+    for(i=0; i<p->nVertex; i++){
+      sqlite3_str_appendf(x, "[%!g,%!g],", GeoX(p,i), GeoY(p,i));
+    }
+    sqlite3_str_appendf(x, "[%!g,%!g]]", GeoX(p,0), GeoY(p,0));
+    sqlite3_result_text(context, sqlite3_str_finish(x), -1, sqlite3_free);
+    sqlite3_free(p);
+  }
+}
+
+/*
+** SQL function:     geopoly_svg(X, ....)
+**
+** Interpret X as a polygon and render it as a SVG <polyline>.
+** Additional arguments are added as attributes to the <polyline>.
+*/
+static void geopolySvgFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  GeoPoly *p;
+  if( argc<1 ) return;
+  p = geopolyFuncParam(context, argv[0], 0);
+  if( p ){
+    sqlite3 *db = sqlite3_context_db_handle(context);
+    sqlite3_str *x = sqlite3_str_new(db);
+    int i;
+    char cSep = '\'';
+    sqlite3_str_appendf(x, "<polyline points=");
+    for(i=0; i<p->nVertex; i++){
+      sqlite3_str_appendf(x, "%c%g,%g", cSep, GeoX(p,i), GeoY(p,i));
+      cSep = ' ';
+    }
+    sqlite3_str_appendf(x, " %g,%g'", GeoX(p,0), GeoY(p,0));
+    for(i=1; i<argc; i++){
+      const char *z = (const char*)sqlite3_value_text(argv[i]);
+      if( z && z[0] ){
+        sqlite3_str_appendf(x, " %s", z);
+      }
+    }
+    sqlite3_str_appendf(x, "></polyline>");
+    sqlite3_result_text(context, sqlite3_str_finish(x), -1, sqlite3_free);
+    sqlite3_free(p);
+  }
+}
+
+/*
+** SQL Function:      geopoly_xform(poly, A, B, C, D, E, F)
+**
+** Transform and/or translate a polygon as follows:
+**
+**      x1 = A*x0 + B*y0 + E
+**      y1 = C*x0 + D*y0 + F
+**
+** For a translation:
+**
+**      geopoly_xform(poly, 1, 0, 0, 1, x-offset, y-offset)
+**
+** Rotate by R around the point (0,0):
+**
+**      geopoly_xform(poly, cos(R), sin(R), -sin(R), cos(R), 0, 0)
+*/
+static void geopolyXformFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  GeoPoly *p = geopolyFuncParam(context, argv[0], 0);
+  double A = sqlite3_value_double(argv[1]);
+  double B = sqlite3_value_double(argv[2]);
+  double C = sqlite3_value_double(argv[3]);
+  double D = sqlite3_value_double(argv[4]);
+  double E = sqlite3_value_double(argv[5]);
+  double F = sqlite3_value_double(argv[6]);
+  GeoCoord x1, y1, x0, y0;
+  int ii;
+  (void)argc;
+  if( p ){
+    for(ii=0; ii<p->nVertex; ii++){
+      x0 = GeoX(p,ii);
+      y0 = GeoY(p,ii);
+      x1 = (GeoCoord)(A*x0 + B*y0 + E);
+      y1 = (GeoCoord)(C*x0 + D*y0 + F);
+      GeoX(p,ii) = x1;
+      GeoY(p,ii) = y1;
+    }
+    sqlite3_result_blob(context, p->hdr, 
+       4+8*p->nVertex, SQLITE_TRANSIENT);
+    sqlite3_free(p);
+  }
+}
+
+/*
+** Compute the area enclosed by the polygon.
+**
+** This routine can also be used to detect polygons that rotate in
+** the wrong direction.  Polygons are suppose to be counter-clockwise (CCW).
+** This routine returns a negative value for clockwise (CW) polygons.
+*/
+static double geopolyArea(GeoPoly *p){
+  double rArea = 0.0;
+  int ii;
+  for(ii=0; ii<p->nVertex-1; ii++){
+    rArea += (GeoX(p,ii) - GeoX(p,ii+1))           /* (x0 - x1) */
+              * (GeoY(p,ii) + GeoY(p,ii+1))        /* (y0 + y1) */
+              * 0.5;
+  }
+  rArea += (GeoX(p,ii) - GeoX(p,0))                /* (xN - x0) */
+           * (GeoY(p,ii) + GeoY(p,0))              /* (yN + y0) */
+           * 0.5;
+  return rArea;
+}
+
+/*
+** Implementation of the geopoly_area(X) function.
+**
+** If the input is a well-formed Geopoly BLOB then return the area
+** enclosed by the polygon.  If the polygon circulates clockwise instead
+** of counterclockwise (as it should) then return the negative of the
+** enclosed area.  Otherwise return NULL.
+*/
+static void geopolyAreaFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  GeoPoly *p = geopolyFuncParam(context, argv[0], 0);
+  (void)argc;
+  if( p ){
+    sqlite3_result_double(context, geopolyArea(p));
+    sqlite3_free(p);
+  }            
+}
+
+/*
+** Implementation of the geopoly_ccw(X) function.
+**
+** If the rotation of polygon X is clockwise (incorrect) instead of
+** counter-clockwise (the correct winding order according to RFC7946)
+** then reverse the order of the vertexes in polygon X.  
+**
+** In other words, this routine returns a CCW polygon regardless of the
+** winding order of its input.
+**
+** Use this routine to sanitize historical inputs that that sometimes
+** contain polygons that wind in the wrong direction.
+*/
+static void geopolyCcwFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  GeoPoly *p = geopolyFuncParam(context, argv[0], 0);
+  (void)argc;
+  if( p ){
+    if( geopolyArea(p)<0.0 ){
+      int ii, jj;
+      for(ii=1, jj=p->nVertex-1; ii<jj; ii++, jj--){
+        GeoCoord t = GeoX(p,ii);
+        GeoX(p,ii) = GeoX(p,jj);
+        GeoX(p,jj) = t;
+        t = GeoY(p,ii);
+        GeoY(p,ii) = GeoY(p,jj);
+        GeoY(p,jj) = t;
+      }
+    }
+    sqlite3_result_blob(context, p->hdr, 
+       4+8*p->nVertex, SQLITE_TRANSIENT);
+    sqlite3_free(p);
+  }            
+}
+
+#define GEOPOLY_PI 3.1415926535897932385
+
+/* Fast approximation for sine(X) for X between -0.5*pi and 2*pi
+*/
+static double geopolySine(double r){
+  assert( r>=-0.5*GEOPOLY_PI && r<=2.0*GEOPOLY_PI );
+  if( r>=1.5*GEOPOLY_PI ){
+    r -= 2.0*GEOPOLY_PI;
+  }
+  if( r>=0.5*GEOPOLY_PI ){
+    return -geopolySine(r-GEOPOLY_PI);
+  }else{
+    double r2 = r*r;
+    double r3 = r2*r;
+    double r5 = r3*r2;
+    return 0.9996949*r - 0.1656700*r3 + 0.0075134*r5;
+  }
+}
+
+/*
+** Function:   geopoly_regular(X,Y,R,N)
+**
+** Construct a simple, convex, regular polygon centered at X, Y
+** with circumradius R and with N sides.
+*/
+static void geopolyRegularFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  double x = sqlite3_value_double(argv[0]);
+  double y = sqlite3_value_double(argv[1]);
+  double r = sqlite3_value_double(argv[2]);
+  int n = sqlite3_value_int(argv[3]);
+  int i;
+  GeoPoly *p;
+  (void)argc;
+
+  if( n<3 || r<=0.0 ) return;
+  if( n>1000 ) n = 1000;
+  p = sqlite3_malloc64( sizeof(*p) + (n-1)*2*sizeof(GeoCoord) );
+  if( p==0 ){
+    sqlite3_result_error_nomem(context);
+    return;
+  }
+  i = 1;
+  p->hdr[0] = *(unsigned char*)&i;
+  p->hdr[1] = 0;
+  p->hdr[2] = (n>>8)&0xff;
+  p->hdr[3] = n&0xff;
+  for(i=0; i<n; i++){
+    double rAngle = 2.0*GEOPOLY_PI*i/n;
+    GeoX(p,i) = x - r*geopolySine(rAngle-0.5*GEOPOLY_PI);
+    GeoY(p,i) = y + r*geopolySine(rAngle);
+  }
+  sqlite3_result_blob(context, p->hdr, 4+8*n, SQLITE_TRANSIENT);
+  sqlite3_free(p);
+}
+
+/*
+** If pPoly is a polygon, compute its bounding box. Then:
+**
+**    (1) if aCoord!=0 store the bounding box in aCoord, returning NULL
+**    (2) otherwise, compute a GeoPoly for the bounding box and return the
+**        new GeoPoly
+**
+** If pPoly is NULL but aCoord is not NULL, then compute a new GeoPoly from
+** the bounding box in aCoord and return a pointer to that GeoPoly.
+*/
+static GeoPoly *geopolyBBox(
+  sqlite3_context *context,   /* For recording the error */
+  sqlite3_value *pPoly,       /* The polygon */
+  RtreeCoord *aCoord,         /* Results here */
+  int *pRc                    /* Error code here */
+){
+  GeoPoly *pOut = 0;
+  GeoPoly *p;
+  float mnX, mxX, mnY, mxY;
+  if( pPoly==0 && aCoord!=0 ){
+    p = 0;
+    mnX = aCoord[0].f;
+    mxX = aCoord[1].f;
+    mnY = aCoord[2].f;
+    mxY = aCoord[3].f;
+    goto geopolyBboxFill;
+  }else{
+    p = geopolyFuncParam(context, pPoly, pRc);
+  }
+  if( p ){
+    int ii;
+    mnX = mxX = GeoX(p,0);
+    mnY = mxY = GeoY(p,0);
+    for(ii=1; ii<p->nVertex; ii++){
+      double r = GeoX(p,ii);
+      if( r<mnX ) mnX = (float)r;
+      else if( r>mxX ) mxX = (float)r;
+      r = GeoY(p,ii);
+      if( r<mnY ) mnY = (float)r;
+      else if( r>mxY ) mxY = (float)r;
+    }
+    if( pRc ) *pRc = SQLITE_OK;
+    if( aCoord==0 ){
+      geopolyBboxFill:
+      pOut = sqlite3_realloc64(p, GEOPOLY_SZ(4));
+      if( pOut==0 ){
+        sqlite3_free(p);
+        if( context ) sqlite3_result_error_nomem(context);
+        if( pRc ) *pRc = SQLITE_NOMEM;
+        return 0;
+      }
+      pOut->nVertex = 4;
+      ii = 1;
+      pOut->hdr[0] = *(unsigned char*)&ii;
+      pOut->hdr[1] = 0;
+      pOut->hdr[2] = 0;
+      pOut->hdr[3] = 4;
+      GeoX(pOut,0) = mnX;
+      GeoY(pOut,0) = mnY;
+      GeoX(pOut,1) = mxX;
+      GeoY(pOut,1) = mnY;
+      GeoX(pOut,2) = mxX;
+      GeoY(pOut,2) = mxY;
+      GeoX(pOut,3) = mnX;
+      GeoY(pOut,3) = mxY;
+    }else{
+      sqlite3_free(p);
+      aCoord[0].f = mnX;
+      aCoord[1].f = mxX;
+      aCoord[2].f = mnY;
+      aCoord[3].f = mxY;
+    }
+  }else if( aCoord ){
+    memset(aCoord, 0, sizeof(RtreeCoord)*4);
+  }
+  return pOut;
+}
+
+/*
+** Implementation of the geopoly_bbox(X) SQL function.
+*/
+static void geopolyBBoxFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  GeoPoly *p = geopolyBBox(context, argv[0], 0, 0);
+  (void)argc;
+  if( p ){
+    sqlite3_result_blob(context, p->hdr, 
+       4+8*p->nVertex, SQLITE_TRANSIENT);
+    sqlite3_free(p);
+  }
+}
+
+/*
+** State vector for the geopoly_group_bbox() aggregate function.
+*/
+typedef struct GeoBBox GeoBBox;
+struct GeoBBox {
+  int isInit;
+  RtreeCoord a[4];
+};
+
+
+/*
+** Implementation of the geopoly_group_bbox(X) aggregate SQL function.
+*/
+static void geopolyBBoxStep(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  RtreeCoord a[4];
+  int rc = SQLITE_OK;
+  (void)argc;
+  (void)geopolyBBox(context, argv[0], a, &rc);
+  if( rc==SQLITE_OK ){
+    GeoBBox *pBBox;
+    pBBox = (GeoBBox*)sqlite3_aggregate_context(context, sizeof(*pBBox));
+    if( pBBox==0 ) return;
+    if( pBBox->isInit==0 ){
+      pBBox->isInit = 1;
+      memcpy(pBBox->a, a, sizeof(RtreeCoord)*4);
+    }else{
+      if( a[0].f < pBBox->a[0].f ) pBBox->a[0] = a[0];
+      if( a[1].f > pBBox->a[1].f ) pBBox->a[1] = a[1];
+      if( a[2].f < pBBox->a[2].f ) pBBox->a[2] = a[2];
+      if( a[3].f > pBBox->a[3].f ) pBBox->a[3] = a[3];
+    }
+  }
+}
+static void geopolyBBoxFinal(
+  sqlite3_context *context
+){
+  GeoPoly *p;
+  GeoBBox *pBBox;
+  pBBox = (GeoBBox*)sqlite3_aggregate_context(context, 0);
+  if( pBBox==0 ) return;
+  p = geopolyBBox(context, 0, pBBox->a, 0);
+  if( p ){
+    sqlite3_result_blob(context, p->hdr, 
+       4+8*p->nVertex, SQLITE_TRANSIENT);
+    sqlite3_free(p);
+  }
+}
+
+
+/*
+** Determine if point (x0,y0) is beneath line segment (x1,y1)->(x2,y2).
+** Returns:
+**
+**    +2  x0,y0 is on the line segement
+**
+**    +1  x0,y0 is beneath line segment
+**
+**    0   x0,y0 is not on or beneath the line segment or the line segment
+**        is vertical and x0,y0 is not on the line segment
+**
+** The left-most coordinate min(x1,x2) is not considered to be part of
+** the line segment for the purposes of this analysis.
+*/
+static int pointBeneathLine(
+  double x0, double y0,
+  double x1, double y1,
+  double x2, double y2
+){
+  double y;
+  if( x0==x1 && y0==y1 ) return 2;
+  if( x1<x2 ){
+    if( x0<=x1 || x0>x2 ) return 0;
+  }else if( x1>x2 ){
+    if( x0<=x2 || x0>x1 ) return 0;
+  }else{
+    /* Vertical line segment */
+    if( x0!=x1 ) return 0;
+    if( y0<y1 && y0<y2 ) return 0;
+    if( y0>y1 && y0>y2 ) return 0;
+    return 2;
+  }
+  y = y1 + (y2-y1)*(x0-x1)/(x2-x1);
+  if( y0==y ) return 2;
+  if( y0<y ) return 1;
+  return 0;
+}
+
+/*
+** SQL function:    geopoly_contains_point(P,X,Y)
+**
+** Return +2 if point X,Y is within polygon P.
+** Return +1 if point X,Y is on the polygon boundary.
+** Return 0 if point X,Y is outside the polygon
+*/
+static void geopolyContainsPointFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  GeoPoly *p1 = geopolyFuncParam(context, argv[0], 0);
+  double x0 = sqlite3_value_double(argv[1]);
+  double y0 = sqlite3_value_double(argv[2]);
+  int v = 0;
+  int cnt = 0;
+  int ii;
+  (void)argc;
+    
+  if( p1==0 ) return;
+  for(ii=0; ii<p1->nVertex-1; ii++){
+    v = pointBeneathLine(x0,y0,GeoX(p1,ii), GeoY(p1,ii),
+                               GeoX(p1,ii+1),GeoY(p1,ii+1));
+    if( v==2 ) break;
+    cnt += v;
+  }
+  if( v!=2 ){
+    v = pointBeneathLine(x0,y0,GeoX(p1,ii), GeoY(p1,ii),
+                               GeoX(p1,0),  GeoY(p1,0));
+  }
+  if( v==2 ){
+    sqlite3_result_int(context, 1);
+  }else if( ((v+cnt)&1)==0 ){
+    sqlite3_result_int(context, 0);
+  }else{
+    sqlite3_result_int(context, 2);
+  }
+  sqlite3_free(p1);
+}
+
+/* Forward declaration */
+static int geopolyOverlap(GeoPoly *p1, GeoPoly *p2);
+
+/*
+** SQL function:    geopoly_within(P1,P2)
+**
+** Return +2 if P1 and P2 are the same polygon
+** Return +1 if P2 is contained within P1
+** Return 0 if any part of P2 is on the outside of P1
+**
+*/
+static void geopolyWithinFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  GeoPoly *p1 = geopolyFuncParam(context, argv[0], 0);
+  GeoPoly *p2 = geopolyFuncParam(context, argv[1], 0);
+  (void)argc;
+  if( p1 && p2 ){
+    int x = geopolyOverlap(p1, p2);
+    if( x<0 ){
+      sqlite3_result_error_nomem(context);
+    }else{
+      sqlite3_result_int(context, x==2 ? 1 : x==4 ? 2 : 0);
+    }
+  }
+  sqlite3_free(p1);
+  sqlite3_free(p2);
+}
+
+/* Objects used by the overlap algorihm. */
+typedef struct GeoEvent GeoEvent;
+typedef struct GeoSegment GeoSegment;
+typedef struct GeoOverlap GeoOverlap;
+struct GeoEvent {
+  double x;              /* X coordinate at which event occurs */
+  int eType;             /* 0 for ADD, 1 for REMOVE */
+  GeoSegment *pSeg;      /* The segment to be added or removed */
+  GeoEvent *pNext;       /* Next event in the sorted list */
+};
+struct GeoSegment {
+  double C, B;           /* y = C*x + B */
+  double y;              /* Current y value */
+  float y0;              /* Initial y value */
+  unsigned char side;    /* 1 for p1, 2 for p2 */
+  unsigned int idx;      /* Which segment within the side */
+  GeoSegment *pNext;     /* Next segment in a list sorted by y */
+};
+struct GeoOverlap {
+  GeoEvent *aEvent;          /* Array of all events */
+  GeoSegment *aSegment;      /* Array of all segments */
+  int nEvent;                /* Number of events */
+  int nSegment;              /* Number of segments */
+};
+
+/*
+** Add a single segment and its associated events.
+*/
+static void geopolyAddOneSegment(
+  GeoOverlap *p,
+  GeoCoord x0,
+  GeoCoord y0,
+  GeoCoord x1,
+  GeoCoord y1,
+  unsigned char side,
+  unsigned int idx
+){
+  GeoSegment *pSeg;
+  GeoEvent *pEvent;
+  if( x0==x1 ) return;  /* Ignore vertical segments */
+  if( x0>x1 ){
+    GeoCoord t = x0;
+    x0 = x1;
+    x1 = t;
+    t = y0;
+    y0 = y1;
+    y1 = t;
+  }
+  pSeg = p->aSegment + p->nSegment;
+  p->nSegment++;
+  pSeg->C = (y1-y0)/(x1-x0);
+  pSeg->B = y1 - x1*pSeg->C;
+  pSeg->y0 = y0;
+  pSeg->side = side;
+  pSeg->idx = idx;
+  pEvent = p->aEvent + p->nEvent;
+  p->nEvent++;
+  pEvent->x = x0;
+  pEvent->eType = 0;
+  pEvent->pSeg = pSeg;
+  pEvent = p->aEvent + p->nEvent;
+  p->nEvent++;
+  pEvent->x = x1;
+  pEvent->eType = 1;
+  pEvent->pSeg = pSeg;
+}
+  
+
+
+/*
+** Insert all segments and events for polygon pPoly.
+*/
+static void geopolyAddSegments(
+  GeoOverlap *p,          /* Add segments to this Overlap object */
+  GeoPoly *pPoly,         /* Take all segments from this polygon */
+  unsigned char side      /* The side of pPoly */
+){
+  unsigned int i;
+  GeoCoord *x;
+  for(i=0; i<(unsigned)pPoly->nVertex-1; i++){
+    x = &GeoX(pPoly,i);
+    geopolyAddOneSegment(p, x[0], x[1], x[2], x[3], side, i);
+  }
+  x = &GeoX(pPoly,i);
+  geopolyAddOneSegment(p, x[0], x[1], pPoly->a[0], pPoly->a[1], side, i);
+}
+
+/*
+** Merge two lists of sorted events by X coordinate
+*/
+static GeoEvent *geopolyEventMerge(GeoEvent *pLeft, GeoEvent *pRight){
+  GeoEvent head, *pLast;
+  head.pNext = 0;
+  pLast = &head;
+  while( pRight && pLeft ){
+    if( pRight->x <= pLeft->x ){
+      pLast->pNext = pRight;
+      pLast = pRight;
+      pRight = pRight->pNext;
+    }else{
+      pLast->pNext = pLeft;
+      pLast = pLeft;
+      pLeft = pLeft->pNext;
+    }
+  }
+  pLast->pNext = pRight ? pRight : pLeft;
+  return head.pNext;  
+}
+
+/*
+** Sort an array of nEvent event objects into a list.
+*/
+static GeoEvent *geopolySortEventsByX(GeoEvent *aEvent, int nEvent){
+  int mx = 0;
+  int i, j;
+  GeoEvent *p;
+  GeoEvent *a[50];
+  for(i=0; i<nEvent; i++){
+    p = &aEvent[i];
+    p->pNext = 0;
+    for(j=0; j<mx && a[j]; j++){
+      p = geopolyEventMerge(a[j], p);
+      a[j] = 0;
+    }
+    a[j] = p;
+    if( j>=mx ) mx = j+1;
+  }
+  p = 0;
+  for(i=0; i<mx; i++){
+    p = geopolyEventMerge(a[i], p);
+  }
+  return p;
+}
+
+/*
+** Merge two lists of sorted segments by Y, and then by C.
+*/
+static GeoSegment *geopolySegmentMerge(GeoSegment *pLeft, GeoSegment *pRight){
+  GeoSegment head, *pLast;
+  head.pNext = 0;
+  pLast = &head;
+  while( pRight && pLeft ){
+    double r = pRight->y - pLeft->y;
+    if( r==0.0 ) r = pRight->C - pLeft->C;
+    if( r<0.0 ){
+      pLast->pNext = pRight;
+      pLast = pRight;
+      pRight = pRight->pNext;
+    }else{
+      pLast->pNext = pLeft;
+      pLast = pLeft;
+      pLeft = pLeft->pNext;
+    }
+  }
+  pLast->pNext = pRight ? pRight : pLeft;
+  return head.pNext;  
+}
+
+/*
+** Sort a list of GeoSegments in order of increasing Y and in the event of
+** a tie, increasing C (slope).
+*/
+static GeoSegment *geopolySortSegmentsByYAndC(GeoSegment *pList){
+  int mx = 0;
+  int i;
+  GeoSegment *p;
+  GeoSegment *a[50];
+  while( pList ){
+    p = pList;
+    pList = pList->pNext;
+    p->pNext = 0;
+    for(i=0; i<mx && a[i]; i++){
+      p = geopolySegmentMerge(a[i], p);
+      a[i] = 0;
+    }
+    a[i] = p;
+    if( i>=mx ) mx = i+1;
+  }
+  p = 0;
+  for(i=0; i<mx; i++){
+    p = geopolySegmentMerge(a[i], p);
+  }
+  return p;
+}
+
+/*
+** Determine the overlap between two polygons
+*/
+static int geopolyOverlap(GeoPoly *p1, GeoPoly *p2){
+  sqlite3_int64 nVertex = p1->nVertex + p2->nVertex + 2;
+  GeoOverlap *p;
+  sqlite3_int64 nByte;
+  GeoEvent *pThisEvent;
+  double rX;
+  int rc = 0;
+  int needSort = 0;
+  GeoSegment *pActive = 0;
+  GeoSegment *pSeg;
+  unsigned char aOverlap[4];
+
+  nByte = sizeof(GeoEvent)*nVertex*2 
+           + sizeof(GeoSegment)*nVertex 
+           + sizeof(GeoOverlap);
+  p = sqlite3_malloc64( nByte );
+  if( p==0 ) return -1;
+  p->aEvent = (GeoEvent*)&p[1];
+  p->aSegment = (GeoSegment*)&p->aEvent[nVertex*2];
+  p->nEvent = p->nSegment = 0;
+  geopolyAddSegments(p, p1, 1);
+  geopolyAddSegments(p, p2, 2);
+  pThisEvent = geopolySortEventsByX(p->aEvent, p->nEvent);
+  rX = pThisEvent && pThisEvent->x==0.0 ? -1.0 : 0.0;
+  memset(aOverlap, 0, sizeof(aOverlap));
+  while( pThisEvent ){
+    if( pThisEvent->x!=rX ){
+      GeoSegment *pPrev = 0;
+      int iMask = 0;
+      GEODEBUG(("Distinct X: %g\n", pThisEvent->x));
+      rX = pThisEvent->x;
+      if( needSort ){
+        GEODEBUG(("SORT\n"));
+        pActive = geopolySortSegmentsByYAndC(pActive);
+        needSort = 0;
+      }
+      for(pSeg=pActive; pSeg; pSeg=pSeg->pNext){
+        if( pPrev ){
+          if( pPrev->y!=pSeg->y ){
+            GEODEBUG(("MASK: %d\n", iMask));
+            aOverlap[iMask] = 1;
+          }
+        }
+        iMask ^= pSeg->side;
+        pPrev = pSeg;
+      }
+      pPrev = 0;
+      for(pSeg=pActive; pSeg; pSeg=pSeg->pNext){
+        double y = pSeg->C*rX + pSeg->B;
+        GEODEBUG(("Segment %d.%d %g->%g\n", pSeg->side, pSeg->idx, pSeg->y, y));
+        pSeg->y = y;
+        if( pPrev ){
+          if( pPrev->y>pSeg->y && pPrev->side!=pSeg->side ){
+            rc = 1;
+            GEODEBUG(("Crossing: %d.%d and %d.%d\n",
+                    pPrev->side, pPrev->idx,
+                    pSeg->side, pSeg->idx));
+            goto geopolyOverlapDone;
+          }else if( pPrev->y!=pSeg->y ){
+            GEODEBUG(("MASK: %d\n", iMask));
+            aOverlap[iMask] = 1;
+          }
+        }
+        iMask ^= pSeg->side;
+        pPrev = pSeg;
+      }
+    }
+    GEODEBUG(("%s %d.%d C=%g B=%g\n",
+      pThisEvent->eType ? "RM " : "ADD",
+      pThisEvent->pSeg->side, pThisEvent->pSeg->idx,
+      pThisEvent->pSeg->C,
+      pThisEvent->pSeg->B));
+    if( pThisEvent->eType==0 ){
+      /* Add a segment */
+      pSeg = pThisEvent->pSeg;
+      pSeg->y = pSeg->y0;
+      pSeg->pNext = pActive;
+      pActive = pSeg;
+      needSort = 1;
+    }else{
+      /* Remove a segment */
+      if( pActive==pThisEvent->pSeg ){
+        pActive = ALWAYS(pActive) ? pActive->pNext : 0;
+      }else{
+        for(pSeg=pActive; pSeg; pSeg=pSeg->pNext){
+          if( pSeg->pNext==pThisEvent->pSeg ){
+            pSeg->pNext = ALWAYS(pSeg->pNext) ? pSeg->pNext->pNext : 0;
+            break;
+          }
+        }
+      }
+    }
+    pThisEvent = pThisEvent->pNext;
+  }
+  if( aOverlap[3]==0 ){
+    rc = 0;
+  }else if( aOverlap[1]!=0 && aOverlap[2]==0 ){
+    rc = 3;
+  }else if( aOverlap[1]==0 && aOverlap[2]!=0 ){
+    rc = 2;
+  }else if( aOverlap[1]==0 && aOverlap[2]==0 ){
+    rc = 4;
+  }else{
+    rc = 1;
+  }
+
+geopolyOverlapDone:
+  sqlite3_free(p);
+  return rc;
+}
+
+/*
+** SQL function:    geopoly_overlap(P1,P2)
+**
+** Determine whether or not P1 and P2 overlap. Return value:
+**
+**   0     The two polygons are disjoint
+**   1     They overlap
+**   2     P1 is completely contained within P2
+**   3     P2 is completely contained within P1
+**   4     P1 and P2 are the same polygon
+**   NULL  Either P1 or P2 or both are not valid polygons
+*/
+static void geopolyOverlapFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  GeoPoly *p1 = geopolyFuncParam(context, argv[0], 0);
+  GeoPoly *p2 = geopolyFuncParam(context, argv[1], 0);
+  (void)argc;
+  if( p1 && p2 ){
+    int x = geopolyOverlap(p1, p2);
+    if( x<0 ){
+      sqlite3_result_error_nomem(context);
+    }else{
+      sqlite3_result_int(context, x);
+    }
+  }
+  sqlite3_free(p1);
+  sqlite3_free(p2);
+}
+
+/*
+** Enable or disable debugging output
+*/
+static void geopolyDebugFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  (void)context;
+  (void)argc;
+#ifdef GEOPOLY_ENABLE_DEBUG
+  geo_debug = sqlite3_value_int(argv[0]);
+#else
+  (void)argv;
+#endif
+}
+
+/* 
+** This function is the implementation of both the xConnect and xCreate
+** methods of the geopoly virtual table.
+**
+**   argv[0]   -> module name
+**   argv[1]   -> database name
+**   argv[2]   -> table name
+**   argv[...] -> column names...
+*/
+static int geopolyInit(
+  sqlite3 *db,                        /* Database connection */
+  void *pAux,                         /* One of the RTREE_COORD_* constants */
+  int argc, const char *const*argv,   /* Parameters to CREATE TABLE statement */
+  sqlite3_vtab **ppVtab,              /* OUT: New virtual table */
+  char **pzErr,                       /* OUT: Error message, if any */
+  int isCreate                        /* True for xCreate, false for xConnect */
+){
+  int rc = SQLITE_OK;
+  Rtree *pRtree;
+  sqlite3_int64 nDb;              /* Length of string argv[1] */
+  sqlite3_int64 nName;            /* Length of string argv[2] */
+  sqlite3_str *pSql;
+  char *zSql;
+  int ii;
+  (void)pAux;
+
+  sqlite3_vtab_config(db, SQLITE_VTAB_CONSTRAINT_SUPPORT, 1);
+  sqlite3_vtab_config(db, SQLITE_VTAB_INNOCUOUS);
+
+  /* Allocate the sqlite3_vtab structure */
+  nDb = strlen(argv[1]);
+  nName = strlen(argv[2]);
+  pRtree = (Rtree *)sqlite3_malloc64(sizeof(Rtree)+nDb+nName*2+8);
+  if( !pRtree ){
+    return SQLITE_NOMEM;
+  }
+  memset(pRtree, 0, sizeof(Rtree)+nDb+nName*2+8);
+  pRtree->nBusy = 1;
+  pRtree->base.pModule = &rtreeModule;
+  pRtree->zDb = (char *)&pRtree[1];
+  pRtree->zName = &pRtree->zDb[nDb+1];
+  pRtree->zNodeName = &pRtree->zName[nName+1];
+  pRtree->eCoordType = RTREE_COORD_REAL32;
+  pRtree->nDim = 2;
+  pRtree->nDim2 = 4;
+  memcpy(pRtree->zDb, argv[1], nDb);
+  memcpy(pRtree->zName, argv[2], nName);
+  memcpy(pRtree->zNodeName, argv[2], nName);
+  memcpy(&pRtree->zNodeName[nName], "_node", 6);
+
+
+  /* Create/Connect to the underlying relational database schema. If
+  ** that is successful, call sqlite3_declare_vtab() to configure
+  ** the r-tree table schema.
+  */
+  pSql = sqlite3_str_new(db);
+  sqlite3_str_appendf(pSql, "CREATE TABLE x(_shape");
+  pRtree->nAux = 1;         /* Add one for _shape */
+  pRtree->nAuxNotNull = 1;  /* The _shape column is always not-null */
+  for(ii=3; ii<argc; ii++){
+    pRtree->nAux++;
+    sqlite3_str_appendf(pSql, ",%s", argv[ii]);
+  }
+  sqlite3_str_appendf(pSql, ");");
+  zSql = sqlite3_str_finish(pSql);
+  if( !zSql ){
+    rc = SQLITE_NOMEM;
+  }else if( SQLITE_OK!=(rc = sqlite3_declare_vtab(db, zSql)) ){
+    *pzErr = sqlite3_mprintf("%s", sqlite3_errmsg(db));
+  }
+  sqlite3_free(zSql);
+  if( rc ) goto geopolyInit_fail;
+  pRtree->nBytesPerCell = 8 + pRtree->nDim2*4;
+
+  /* Figure out the node size to use. */
+  rc = getNodeSize(db, pRtree, isCreate, pzErr);
+  if( rc ) goto geopolyInit_fail;
+  rc = rtreeSqlInit(pRtree, db, argv[1], argv[2], isCreate);
+  if( rc ){
+    *pzErr = sqlite3_mprintf("%s", sqlite3_errmsg(db));
+    goto geopolyInit_fail;
+  }
+
+  *ppVtab = (sqlite3_vtab *)pRtree;
+  return SQLITE_OK;
+
+geopolyInit_fail:
+  if( rc==SQLITE_OK ) rc = SQLITE_ERROR;
+  assert( *ppVtab==0 );
+  assert( pRtree->nBusy==1 );
+  rtreeRelease(pRtree);
+  return rc;
+}
+
+
+/* 
+** GEOPOLY virtual table module xCreate method.
+*/
+static int geopolyCreate(
+  sqlite3 *db,
+  void *pAux,
+  int argc, const char *const*argv,
+  sqlite3_vtab **ppVtab,
+  char **pzErr
+){
+  return geopolyInit(db, pAux, argc, argv, ppVtab, pzErr, 1);
+}
+
+/* 
+** GEOPOLY virtual table module xConnect method.
+*/
+static int geopolyConnect(
+  sqlite3 *db,
+  void *pAux,
+  int argc, const char *const*argv,
+  sqlite3_vtab **ppVtab,
+  char **pzErr
+){
+  return geopolyInit(db, pAux, argc, argv, ppVtab, pzErr, 0);
+}
+
+
+/* 
+** GEOPOLY virtual table module xFilter method.
+**
+** Query plans:
+**
+**      1         rowid lookup
+**      2         search for objects overlapping the same bounding box
+**                that contains polygon argv[0]
+**      3         search for objects overlapping the same bounding box
+**                that contains polygon argv[0]
+**      4         full table scan
+*/
+static int geopolyFilter(
+  sqlite3_vtab_cursor *pVtabCursor,     /* The cursor to initialize */
+  int idxNum,                           /* Query plan */
+  const char *idxStr,                   /* Not Used */
+  int argc, sqlite3_value **argv        /* Parameters to the query plan */
+){
+  Rtree *pRtree = (Rtree *)pVtabCursor->pVtab;
+  RtreeCursor *pCsr = (RtreeCursor *)pVtabCursor;
+  RtreeNode *pRoot = 0;
+  int rc = SQLITE_OK;
+  int iCell = 0;
+  (void)idxStr;
+
+  rtreeReference(pRtree);
+
+  /* Reset the cursor to the same state as rtreeOpen() leaves it in. */
+  resetCursor(pCsr);
+
+  pCsr->iStrategy = idxNum;
+  if( idxNum==1 ){
+    /* Special case - lookup by rowid. */
+    RtreeNode *pLeaf;        /* Leaf on which the required cell resides */
+    RtreeSearchPoint *p;     /* Search point for the leaf */
+    i64 iRowid = sqlite3_value_int64(argv[0]);
+    i64 iNode = 0;
+    rc = findLeafNode(pRtree, iRowid, &pLeaf, &iNode);
+    if( rc==SQLITE_OK && pLeaf!=0 ){
+      p = rtreeSearchPointNew(pCsr, RTREE_ZERO, 0);
+      assert( p!=0 );  /* Always returns pCsr->sPoint */
+      pCsr->aNode[0] = pLeaf;
+      p->id = iNode;
+      p->eWithin = PARTLY_WITHIN;
+      rc = nodeRowidIndex(pRtree, pLeaf, iRowid, &iCell);
+      p->iCell = (u8)iCell;
+      RTREE_QUEUE_TRACE(pCsr, "PUSH-F1:");
+    }else{
+      pCsr->atEOF = 1;
+    }
+  }else{
+    /* Normal case - r-tree scan. Set up the RtreeCursor.aConstraint array 
+    ** with the configured constraints. 
+    */
+    rc = nodeAcquire(pRtree, 1, 0, &pRoot);
+    if( rc==SQLITE_OK && idxNum<=3 ){
+      RtreeCoord bbox[4];
+      RtreeConstraint *p;
+      assert( argc==1 );
+      assert( argv[0]!=0 );
+      geopolyBBox(0, argv[0], bbox, &rc);
+      if( rc ){
+        goto geopoly_filter_end;
+      }
+      pCsr->aConstraint = p = sqlite3_malloc(sizeof(RtreeConstraint)*4);
+      pCsr->nConstraint = 4;
+      if( p==0 ){
+        rc = SQLITE_NOMEM;
+      }else{
+        memset(pCsr->aConstraint, 0, sizeof(RtreeConstraint)*4);
+        memset(pCsr->anQueue, 0, sizeof(u32)*(pRtree->iDepth + 1));
+        if( idxNum==2 ){
+          /* Overlap query */
+          p->op = 'B';
+          p->iCoord = 0;
+          p->u.rValue = bbox[1].f;
+          p++;
+          p->op = 'D';
+          p->iCoord = 1;
+          p->u.rValue = bbox[0].f;
+          p++;
+          p->op = 'B';
+          p->iCoord = 2;
+          p->u.rValue = bbox[3].f;
+          p++;
+          p->op = 'D';
+          p->iCoord = 3;
+          p->u.rValue = bbox[2].f;
+        }else{
+          /* Within query */
+          p->op = 'D';
+          p->iCoord = 0;
+          p->u.rValue = bbox[0].f;
+          p++;
+          p->op = 'B';
+          p->iCoord = 1;
+          p->u.rValue = bbox[1].f;
+          p++;
+          p->op = 'D';
+          p->iCoord = 2;
+          p->u.rValue = bbox[2].f;
+          p++;
+          p->op = 'B';
+          p->iCoord = 3;
+          p->u.rValue = bbox[3].f;
+        }
+      }
+    }
+    if( rc==SQLITE_OK ){
+      RtreeSearchPoint *pNew;
+      pNew = rtreeSearchPointNew(pCsr, RTREE_ZERO, (u8)(pRtree->iDepth+1));
+      if( pNew==0 ){
+        rc = SQLITE_NOMEM;
+        goto geopoly_filter_end;
+      }
+      pNew->id = 1;
+      pNew->iCell = 0;
+      pNew->eWithin = PARTLY_WITHIN;
+      assert( pCsr->bPoint==1 );
+      pCsr->aNode[0] = pRoot;
+      pRoot = 0;
+      RTREE_QUEUE_TRACE(pCsr, "PUSH-Fm:");
+      rc = rtreeStepToLeaf(pCsr);
+    }
+  }
+
+geopoly_filter_end:
+  nodeRelease(pRtree, pRoot);
+  rtreeRelease(pRtree);
+  return rc;
+}
+
+/*
+** Rtree virtual table module xBestIndex method. There are three
+** table scan strategies to choose from (in order from most to 
+** least desirable):
+**
+**   idxNum     idxStr        Strategy
+**   ------------------------------------------------
+**     1        "rowid"       Direct lookup by rowid.
+**     2        "rtree"       R-tree overlap query using geopoly_overlap()
+**     3        "rtree"       R-tree within query using geopoly_within()
+**     4        "fullscan"    full-table scan.
+**   ------------------------------------------------
+*/
+static int geopolyBestIndex(sqlite3_vtab *tab, sqlite3_index_info *pIdxInfo){
+  int ii;
+  int iRowidTerm = -1;
+  int iFuncTerm = -1;
+  int idxNum = 0;
+  (void)tab;
+
+  for(ii=0; ii<pIdxInfo->nConstraint; ii++){
+    struct sqlite3_index_constraint *p = &pIdxInfo->aConstraint[ii];
+    if( !p->usable ) continue;
+    if( p->iColumn<0 && p->op==SQLITE_INDEX_CONSTRAINT_EQ  ){
+      iRowidTerm = ii;
+      break;
+    }
+    if( p->iColumn==0 && p->op>=SQLITE_INDEX_CONSTRAINT_FUNCTION ){
+      /* p->op==SQLITE_INDEX_CONSTRAINT_FUNCTION for geopoly_overlap()
+      ** p->op==(SQLITE_INDEX_CONTRAINT_FUNCTION+1) for geopoly_within().
+      ** See geopolyFindFunction() */
+      iFuncTerm = ii;
+      idxNum = p->op - SQLITE_INDEX_CONSTRAINT_FUNCTION + 2;
+    }
+  }
+
+  if( iRowidTerm>=0 ){
+    pIdxInfo->idxNum = 1;
+    pIdxInfo->idxStr = "rowid";
+    pIdxInfo->aConstraintUsage[iRowidTerm].argvIndex = 1;
+    pIdxInfo->aConstraintUsage[iRowidTerm].omit = 1;
+    pIdxInfo->estimatedCost = 30.0;
+    pIdxInfo->estimatedRows = 1;
+    pIdxInfo->idxFlags = SQLITE_INDEX_SCAN_UNIQUE;
+    return SQLITE_OK;
+  }
+  if( iFuncTerm>=0 ){
+    pIdxInfo->idxNum = idxNum;
+    pIdxInfo->idxStr = "rtree";
+    pIdxInfo->aConstraintUsage[iFuncTerm].argvIndex = 1;
+    pIdxInfo->aConstraintUsage[iFuncTerm].omit = 0;
+    pIdxInfo->estimatedCost = 300.0;
+    pIdxInfo->estimatedRows = 10;
+    return SQLITE_OK;
+  }
+  pIdxInfo->idxNum = 4;
+  pIdxInfo->idxStr = "fullscan";
+  pIdxInfo->estimatedCost = 3000000.0;
+  pIdxInfo->estimatedRows = 100000;
+  return SQLITE_OK;
+}
+
+
+/* 
+** GEOPOLY virtual table module xColumn method.
+*/
+static int geopolyColumn(sqlite3_vtab_cursor *cur, sqlite3_context *ctx, int i){
+  Rtree *pRtree = (Rtree *)cur->pVtab;
+  RtreeCursor *pCsr = (RtreeCursor *)cur;
+  RtreeSearchPoint *p = rtreeSearchPointFirst(pCsr);
+  int rc = SQLITE_OK;
+  RtreeNode *pNode = rtreeNodeOfFirstSearchPoint(pCsr, &rc);
+
+  if( rc ) return rc;
+  if( p==0 ) return SQLITE_OK;
+  if( i==0 && sqlite3_vtab_nochange(ctx) ) return SQLITE_OK;
+  if( i<=pRtree->nAux ){
+    if( !pCsr->bAuxValid ){
+      if( pCsr->pReadAux==0 ){
+        rc = sqlite3_prepare_v3(pRtree->db, pRtree->zReadAuxSql, -1, 0,
+                                &pCsr->pReadAux, 0);
+        if( rc ) return rc;
+      }
+      sqlite3_bind_int64(pCsr->pReadAux, 1, 
+          nodeGetRowid(pRtree, pNode, p->iCell));
+      rc = sqlite3_step(pCsr->pReadAux);
+      if( rc==SQLITE_ROW ){
+        pCsr->bAuxValid = 1;
+      }else{
+        sqlite3_reset(pCsr->pReadAux);
+        if( rc==SQLITE_DONE ) rc = SQLITE_OK;
+        return rc;
+      }
+    }
+    sqlite3_result_value(ctx, sqlite3_column_value(pCsr->pReadAux, i+2));
+  }
+  return SQLITE_OK;
+}
+
+
+/*
+** The xUpdate method for GEOPOLY module virtual tables.
+**
+** For DELETE:
+**
+**     argv[0] = the rowid to be deleted
+**
+** For INSERT:
+**
+**     argv[0] = SQL NULL
+**     argv[1] = rowid to insert, or an SQL NULL to select automatically
+**     argv[2] = _shape column
+**     argv[3] = first application-defined column....
+**
+** For UPDATE:
+**
+**     argv[0] = rowid to modify.  Never NULL
+**     argv[1] = rowid after the change.  Never NULL
+**     argv[2] = new value for _shape
+**     argv[3] = new value for first application-defined column....
+*/
+static int geopolyUpdate(
+  sqlite3_vtab *pVtab, 
+  int nData, 
+  sqlite3_value **aData, 
+  sqlite_int64 *pRowid
+){
+  Rtree *pRtree = (Rtree *)pVtab;
+  int rc = SQLITE_OK;
+  RtreeCell cell;                 /* New cell to insert if nData>1 */
+  i64 oldRowid;                   /* The old rowid */
+  int oldRowidValid;              /* True if oldRowid is valid */
+  i64 newRowid;                   /* The new rowid */
+  int newRowidValid;              /* True if newRowid is valid */
+  int coordChange = 0;            /* Change in coordinates */
+
+  if( pRtree->nNodeRef ){
+    /* Unable to write to the btree while another cursor is reading from it,
+    ** since the write might do a rebalance which would disrupt the read
+    ** cursor. */
+    return SQLITE_LOCKED_VTAB;
+  }
+  rtreeReference(pRtree);
+  assert(nData>=1);
+
+  oldRowidValid = sqlite3_value_type(aData[0])!=SQLITE_NULL;;
+  oldRowid = oldRowidValid ? sqlite3_value_int64(aData[0]) : 0;
+  newRowidValid = nData>1 && sqlite3_value_type(aData[1])!=SQLITE_NULL;
+  newRowid = newRowidValid ? sqlite3_value_int64(aData[1]) : 0;
+  cell.iRowid = newRowid;
+
+  if( nData>1                                 /* not a DELETE */
+   && (!oldRowidValid                         /* INSERT */
+        || !sqlite3_value_nochange(aData[2])  /* UPDATE _shape */
+        || oldRowid!=newRowid)                /* Rowid change */
+  ){
+    assert( aData[2]!=0 );
+    geopolyBBox(0, aData[2], cell.aCoord, &rc);
+    if( rc ){
+      if( rc==SQLITE_ERROR ){
+        pVtab->zErrMsg =
+          sqlite3_mprintf("_shape does not contain a valid polygon");
+      }
+      goto geopoly_update_end;
+    }
+    coordChange = 1;
+
+    /* If a rowid value was supplied, check if it is already present in 
+    ** the table. If so, the constraint has failed. */
+    if( newRowidValid && (!oldRowidValid || oldRowid!=newRowid) ){
+      int steprc;
+      sqlite3_bind_int64(pRtree->pReadRowid, 1, cell.iRowid);
+      steprc = sqlite3_step(pRtree->pReadRowid);
+      rc = sqlite3_reset(pRtree->pReadRowid);
+      if( SQLITE_ROW==steprc ){
+        if( sqlite3_vtab_on_conflict(pRtree->db)==SQLITE_REPLACE ){
+          rc = rtreeDeleteRowid(pRtree, cell.iRowid);
+        }else{
+          rc = rtreeConstraintError(pRtree, 0);
+        }
+      }
+    }
+  }
+
+  /* If aData[0] is not an SQL NULL value, it is the rowid of a
+  ** record to delete from the r-tree table. The following block does
+  ** just that.
+  */
+  if( rc==SQLITE_OK && (nData==1 || (coordChange && oldRowidValid)) ){
+    rc = rtreeDeleteRowid(pRtree, oldRowid);
+  }
+
+  /* If the aData[] array contains more than one element, elements
+  ** (aData[2]..aData[argc-1]) contain a new record to insert into
+  ** the r-tree structure.
+  */
+  if( rc==SQLITE_OK && nData>1 && coordChange ){
+    /* Insert the new record into the r-tree */
+    RtreeNode *pLeaf = 0;
+    if( !newRowidValid ){
+      rc = rtreeNewRowid(pRtree, &cell.iRowid);
+    }
+    *pRowid = cell.iRowid;
+    if( rc==SQLITE_OK ){
+      rc = ChooseLeaf(pRtree, &cell, 0, &pLeaf);
+    }
+    if( rc==SQLITE_OK ){
+      int rc2;
+      rc = rtreeInsertCell(pRtree, pLeaf, &cell, 0);
+      rc2 = nodeRelease(pRtree, pLeaf);
+      if( rc==SQLITE_OK ){
+        rc = rc2;
+      }
+    }
+  }
+
+  /* Change the data */
+  if( rc==SQLITE_OK && nData>1 ){
+    sqlite3_stmt *pUp = pRtree->pWriteAux;
+    int jj;
+    int nChange = 0;
+    sqlite3_bind_int64(pUp, 1, cell.iRowid);
+    assert( pRtree->nAux>=1 );
+    if( sqlite3_value_nochange(aData[2]) ){
+      sqlite3_bind_null(pUp, 2);
+    }else{
+      GeoPoly *p = 0;
+      if( sqlite3_value_type(aData[2])==SQLITE_TEXT
+       && (p = geopolyFuncParam(0, aData[2], &rc))!=0
+       && rc==SQLITE_OK
+      ){
+        sqlite3_bind_blob(pUp, 2, p->hdr, 4+8*p->nVertex, SQLITE_TRANSIENT);
+      }else{
+        sqlite3_bind_value(pUp, 2, aData[2]);
+      }
+      sqlite3_free(p);
+      nChange = 1;
+    }
+    for(jj=1; jj<nData-2; jj++){
+      nChange++;
+      sqlite3_bind_value(pUp, jj+2, aData[jj+2]);
+    }
+    if( nChange ){
+      sqlite3_step(pUp);
+      rc = sqlite3_reset(pUp);
+    }
+  }
+
+geopoly_update_end:
+  rtreeRelease(pRtree);
+  return rc;
+}
+
+/*
+** Report that geopoly_overlap() is an overloaded function suitable
+** for use in xBestIndex.
+*/
+static int geopolyFindFunction(
+  sqlite3_vtab *pVtab,
+  int nArg,
+  const char *zName,
+  void (**pxFunc)(sqlite3_context*,int,sqlite3_value**),
+  void **ppArg
+){
+  (void)pVtab;
+  (void)nArg;
+  if( sqlite3_stricmp(zName, "geopoly_overlap")==0 ){
+    *pxFunc = geopolyOverlapFunc;
+    *ppArg = 0;
+    return SQLITE_INDEX_CONSTRAINT_FUNCTION;
+  }
+  if( sqlite3_stricmp(zName, "geopoly_within")==0 ){
+    *pxFunc = geopolyWithinFunc;
+    *ppArg = 0;
+    return SQLITE_INDEX_CONSTRAINT_FUNCTION+1;
+  }
+  return 0;
+}
+
+
+static sqlite3_module geopolyModule = {
+  3,                          /* iVersion */
+  geopolyCreate,              /* xCreate - create a table */
+  geopolyConnect,             /* xConnect - connect to an existing table */
+  geopolyBestIndex,           /* xBestIndex - Determine search strategy */
+  rtreeDisconnect,            /* xDisconnect - Disconnect from a table */
+  rtreeDestroy,               /* xDestroy - Drop a table */
+  rtreeOpen,                  /* xOpen - open a cursor */
+  rtreeClose,                 /* xClose - close a cursor */
+  geopolyFilter,              /* xFilter - configure scan constraints */
+  rtreeNext,                  /* xNext - advance a cursor */
+  rtreeEof,                   /* xEof */
+  geopolyColumn,              /* xColumn - read data */
+  rtreeRowid,                 /* xRowid - read data */
+  geopolyUpdate,              /* xUpdate - write data */
+  rtreeBeginTransaction,      /* xBegin - begin transaction */
+  rtreeEndTransaction,        /* xSync - sync transaction */
+  rtreeEndTransaction,        /* xCommit - commit transaction */
+  rtreeEndTransaction,        /* xRollback - rollback transaction */
+  geopolyFindFunction,        /* xFindFunction - function overloading */
+  rtreeRename,                /* xRename - rename the table */
+  rtreeSavepoint,             /* xSavepoint */
+  0,                          /* xRelease */
+  0,                          /* xRollbackTo */
+  rtreeShadowName,            /* xShadowName */
+  rtreeIntegrity              /* xIntegrity */
+};
+
+static int sqlite3_geopoly_init(sqlite3 *db){
+  int rc = SQLITE_OK;
+  static const struct {
+    void (*xFunc)(sqlite3_context*,int,sqlite3_value**);
+    signed char nArg;
+    unsigned char bPure;
+    const char *zName;
+  } aFunc[] = {
+     { geopolyAreaFunc,          1, 1,    "geopoly_area"             },
+     { geopolyBlobFunc,          1, 1,    "geopoly_blob"             },
+     { geopolyJsonFunc,          1, 1,    "geopoly_json"             },
+     { geopolySvgFunc,          -1, 1,    "geopoly_svg"              },
+     { geopolyWithinFunc,        2, 1,    "geopoly_within"           },
+     { geopolyContainsPointFunc, 3, 1,    "geopoly_contains_point"   },
+     { geopolyOverlapFunc,       2, 1,    "geopoly_overlap"          },
+     { geopolyDebugFunc,         1, 0,    "geopoly_debug"            },
+     { geopolyBBoxFunc,          1, 1,    "geopoly_bbox"             },
+     { geopolyXformFunc,         7, 1,    "geopoly_xform"            },
+     { geopolyRegularFunc,       4, 1,    "geopoly_regular"          },
+     { geopolyCcwFunc,           1, 1,    "geopoly_ccw"              },
+  };
+  static const struct {
+    void (*xStep)(sqlite3_context*,int,sqlite3_value**);
+    void (*xFinal)(sqlite3_context*);
+    const char *zName;
+  } aAgg[] = {
+     { geopolyBBoxStep, geopolyBBoxFinal, "geopoly_group_bbox"    },
+  };
+  unsigned int i;
+  for(i=0; i<sizeof(aFunc)/sizeof(aFunc[0]) && rc==SQLITE_OK; i++){
+    int enc;
+    if( aFunc[i].bPure ){
+      enc = SQLITE_UTF8|SQLITE_DETERMINISTIC|SQLITE_INNOCUOUS;
+    }else{
+      enc = SQLITE_UTF8|SQLITE_DIRECTONLY;
+    }
+    rc = sqlite3_create_function(db, aFunc[i].zName, aFunc[i].nArg,
+                                 enc, 0,
+                                 aFunc[i].xFunc, 0, 0);
+  }
+  for(i=0; i<sizeof(aAgg)/sizeof(aAgg[0]) && rc==SQLITE_OK; i++){
+    rc = sqlite3_create_function(db, aAgg[i].zName, 1, 
+              SQLITE_UTF8|SQLITE_DETERMINISTIC|SQLITE_INNOCUOUS, 0,
+              0, aAgg[i].xStep, aAgg[i].xFinal);
+  }
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_module_v2(db, "geopoly", &geopolyModule, 0, 0);
+  }
+  return rc;
+}
diff --git a/ext/rtree/rtree.c b/ext/rtree/rtree.c
new file mode 100644
index 0000000000000000000000000000000000000000..8ed8978bdebf740b282a77cd4ae8d99dbac473d7
--- /dev/null
+++ b/ext/rtree/rtree.c
@@ -0,0 +1,4466 @@
+/*
+** 2001 September 15
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file contains code for implementations of the r-tree and r*-tree
+** algorithms packaged as an SQLite virtual table module.
+*/
+
+/*
+** Database Format of R-Tree Tables
+** --------------------------------
+**
+** The data structure for a single virtual r-tree table is stored in three 
+** native SQLite tables declared as follows. In each case, the '%' character
+** in the table name is replaced with the user-supplied name of the r-tree
+** table.
+**
+**   CREATE TABLE %_node(nodeno INTEGER PRIMARY KEY, data BLOB)
+**   CREATE TABLE %_parent(nodeno INTEGER PRIMARY KEY, parentnode INTEGER)
+**   CREATE TABLE %_rowid(rowid INTEGER PRIMARY KEY, nodeno INTEGER, ...)
+**
+** The data for each node of the r-tree structure is stored in the %_node
+** table. For each node that is not the root node of the r-tree, there is
+** an entry in the %_parent table associating the node with its parent.
+** And for each row of data in the table, there is an entry in the %_rowid
+** table that maps from the entries rowid to the id of the node that it
+** is stored on.  If the r-tree contains auxiliary columns, those are stored
+** on the end of the %_rowid table.
+**
+** The root node of an r-tree always exists, even if the r-tree table is
+** empty. The nodeno of the root node is always 1. All other nodes in the
+** table must be the same size as the root node. The content of each node
+** is formatted as follows:
+**
+**   1. If the node is the root node (node 1), then the first 2 bytes
+**      of the node contain the tree depth as a big-endian integer.
+**      For non-root nodes, the first 2 bytes are left unused.
+**
+**   2. The next 2 bytes contain the number of entries currently 
+**      stored in the node.
+**
+**   3. The remainder of the node contains the node entries. Each entry
+**      consists of a single 8-byte integer followed by an even number
+**      of 4-byte coordinates. For leaf nodes the integer is the rowid
+**      of a record. For internal nodes it is the node number of a
+**      child page.
+*/
+
+#if !defined(SQLITE_CORE) \
+  || (defined(SQLITE_ENABLE_RTREE) && !defined(SQLITE_OMIT_VIRTUALTABLE))
+
+#ifndef SQLITE_CORE
+  #include "sqlite3ext.h"
+  SQLITE_EXTENSION_INIT1
+#else
+  #include "sqlite3.h"
+#endif
+int sqlite3GetToken(const unsigned char*,int*); /* In the SQLite core */
+
+/*
+** If building separately, we will need some setup that is normally
+** found in sqliteInt.h
+*/
+#if !defined(SQLITE_AMALGAMATION)
+#include "sqlite3rtree.h"
+typedef sqlite3_int64 i64;
+typedef sqlite3_uint64 u64;
+typedef unsigned char u8;
+typedef unsigned short u16;
+typedef unsigned int u32;
+#if !defined(NDEBUG) && !defined(SQLITE_DEBUG)
+# define NDEBUG 1
+#endif
+#if defined(NDEBUG) && defined(SQLITE_DEBUG)
+# undef NDEBUG
+#endif
+#if defined(SQLITE_COVERAGE_TEST) || defined(SQLITE_MUTATION_TEST)
+# define SQLITE_OMIT_AUXILIARY_SAFETY_CHECKS 1
+#endif
+#if defined(SQLITE_OMIT_AUXILIARY_SAFETY_CHECKS)
+# define ALWAYS(X)      (1)
+# define NEVER(X)       (0)
+#elif !defined(NDEBUG)
+# define ALWAYS(X)      ((X)?1:(assert(0),0))
+# define NEVER(X)       ((X)?(assert(0),1):0)
+#else
+# define ALWAYS(X)      (X)
+# define NEVER(X)       (X)
+#endif
+#endif /* !defined(SQLITE_AMALGAMATION) */
+
+/* Macro to check for 4-byte alignment.  Only used inside of assert() */
+#ifdef SQLITE_DEBUG
+# define FOUR_BYTE_ALIGNED(X)  ((((char*)(X) - (char*)0) & 3)==0)
+#endif
+
+#include <string.h>
+#include <stdio.h>
+#include <assert.h>
+#include <stdlib.h>
+
+/*  The following macro is used to suppress compiler warnings.
+*/
+#ifndef UNUSED_PARAMETER
+# define UNUSED_PARAMETER(x) (void)(x)
+#endif
+
+typedef struct Rtree Rtree;
+typedef struct RtreeCursor RtreeCursor;
+typedef struct RtreeNode RtreeNode;
+typedef struct RtreeCell RtreeCell;
+typedef struct RtreeConstraint RtreeConstraint;
+typedef struct RtreeMatchArg RtreeMatchArg;
+typedef struct RtreeGeomCallback RtreeGeomCallback;
+typedef union RtreeCoord RtreeCoord;
+typedef struct RtreeSearchPoint RtreeSearchPoint;
+
+/* The rtree may have between 1 and RTREE_MAX_DIMENSIONS dimensions. */
+#define RTREE_MAX_DIMENSIONS 5
+
+/* Maximum number of auxiliary columns */
+#define RTREE_MAX_AUX_COLUMN 100
+
+/* Size of hash table Rtree.aHash. This hash table is not expected to
+** ever contain very many entries, so a fixed number of buckets is 
+** used.
+*/
+#define HASHSIZE 97
+
+/* The xBestIndex method of this virtual table requires an estimate of
+** the number of rows in the virtual table to calculate the costs of
+** various strategies. If possible, this estimate is loaded from the
+** sqlite_stat1 table (with RTREE_MIN_ROWEST as a hard-coded minimum).
+** Otherwise, if no sqlite_stat1 entry is available, use 
+** RTREE_DEFAULT_ROWEST.
+*/
+#define RTREE_DEFAULT_ROWEST 1048576
+#define RTREE_MIN_ROWEST         100
+
+/* 
+** An rtree virtual-table object.
+*/
+struct Rtree {
+  sqlite3_vtab base;          /* Base class.  Must be first */
+  sqlite3 *db;                /* Host database connection */
+  int iNodeSize;              /* Size in bytes of each node in the node table */
+  u8 nDim;                    /* Number of dimensions */
+  u8 nDim2;                   /* Twice the number of dimensions */
+  u8 eCoordType;              /* RTREE_COORD_REAL32 or RTREE_COORD_INT32 */
+  u8 nBytesPerCell;           /* Bytes consumed per cell */
+  u8 inWrTrans;               /* True if inside write transaction */
+  u8 nAux;                    /* # of auxiliary columns in %_rowid */
+#ifdef SQLITE_ENABLE_GEOPOLY
+  u8 nAuxNotNull;             /* Number of initial not-null aux columns */
+#endif
+#ifdef SQLITE_DEBUG
+  u8 bCorrupt;                /* Shadow table corruption detected */
+#endif
+  int iDepth;                 /* Current depth of the r-tree structure */
+  char *zDb;                  /* Name of database containing r-tree table */
+  char *zName;                /* Name of r-tree table */ 
+  char *zNodeName;            /* Name of the %_node table */
+  u32 nBusy;                  /* Current number of users of this structure */
+  i64 nRowEst;                /* Estimated number of rows in this table */
+  u32 nCursor;                /* Number of open cursors */
+  u32 nNodeRef;               /* Number RtreeNodes with positive nRef */
+  char *zReadAuxSql;          /* SQL for statement to read aux data */
+
+  /* List of nodes removed during a CondenseTree operation. List is
+  ** linked together via the pointer normally used for hash chains -
+  ** RtreeNode.pNext. RtreeNode.iNode stores the depth of the sub-tree 
+  ** headed by the node (leaf nodes have RtreeNode.iNode==0).
+  */
+  RtreeNode *pDeleted;
+
+  /* Blob I/O on xxx_node */
+  sqlite3_blob *pNodeBlob;
+
+  /* Statements to read/write/delete a record from xxx_node */
+  sqlite3_stmt *pWriteNode;
+  sqlite3_stmt *pDeleteNode;
+
+  /* Statements to read/write/delete a record from xxx_rowid */
+  sqlite3_stmt *pReadRowid;
+  sqlite3_stmt *pWriteRowid;
+  sqlite3_stmt *pDeleteRowid;
+
+  /* Statements to read/write/delete a record from xxx_parent */
+  sqlite3_stmt *pReadParent;
+  sqlite3_stmt *pWriteParent;
+  sqlite3_stmt *pDeleteParent;
+
+  /* Statement for writing to the "aux:" fields, if there are any */
+  sqlite3_stmt *pWriteAux;
+
+  RtreeNode *aHash[HASHSIZE]; /* Hash table of in-memory nodes. */
+};
+
+/* Possible values for Rtree.eCoordType: */
+#define RTREE_COORD_REAL32 0
+#define RTREE_COORD_INT32  1
+
+/*
+** If SQLITE_RTREE_INT_ONLY is defined, then this virtual table will
+** only deal with integer coordinates.  No floating point operations
+** will be done.
+*/
+#ifdef SQLITE_RTREE_INT_ONLY
+  typedef sqlite3_int64 RtreeDValue;       /* High accuracy coordinate */
+  typedef int RtreeValue;                  /* Low accuracy coordinate */
+# define RTREE_ZERO 0
+#else
+  typedef double RtreeDValue;              /* High accuracy coordinate */
+  typedef float RtreeValue;                /* Low accuracy coordinate */
+# define RTREE_ZERO 0.0
+#endif
+
+/*
+** Set the Rtree.bCorrupt flag
+*/
+#ifdef SQLITE_DEBUG
+# define RTREE_IS_CORRUPT(X) ((X)->bCorrupt = 1)
+#else
+# define RTREE_IS_CORRUPT(X)
+#endif
+
+/*
+** When doing a search of an r-tree, instances of the following structure
+** record intermediate results from the tree walk.
+**
+** The id is always a node-id.  For iLevel>=1 the id is the node-id of
+** the node that the RtreeSearchPoint represents.  When iLevel==0, however,
+** the id is of the parent node and the cell that RtreeSearchPoint
+** represents is the iCell-th entry in the parent node.
+*/
+struct RtreeSearchPoint {
+  RtreeDValue rScore;    /* The score for this node.  Smallest goes first. */
+  sqlite3_int64 id;      /* Node ID */
+  u8 iLevel;             /* 0=entries.  1=leaf node.  2+ for higher */
+  u8 eWithin;            /* PARTLY_WITHIN or FULLY_WITHIN */
+  u8 iCell;              /* Cell index within the node */
+};
+
+/*
+** The minimum number of cells allowed for a node is a third of the 
+** maximum. In Gutman's notation:
+**
+**     m = M/3
+**
+** If an R*-tree "Reinsert" operation is required, the same number of
+** cells are removed from the overfull node and reinserted into the tree.
+*/
+#define RTREE_MINCELLS(p) ((((p)->iNodeSize-4)/(p)->nBytesPerCell)/3)
+#define RTREE_REINSERT(p) RTREE_MINCELLS(p)
+#define RTREE_MAXCELLS 51
+
+/*
+** The smallest possible node-size is (512-64)==448 bytes. And the largest
+** supported cell size is 48 bytes (8 byte rowid + ten 4 byte coordinates).
+** Therefore all non-root nodes must contain at least 3 entries. Since 
+** 3^40 is greater than 2^64, an r-tree structure always has a depth of
+** 40 or less.
+*/
+#define RTREE_MAX_DEPTH 40
+
+
+/*
+** Number of entries in the cursor RtreeNode cache.  The first entry is
+** used to cache the RtreeNode for RtreeCursor.sPoint.  The remaining
+** entries cache the RtreeNode for the first elements of the priority queue.
+*/
+#define RTREE_CACHE_SZ  5
+
+/* 
+** An rtree cursor object.
+*/
+struct RtreeCursor {
+  sqlite3_vtab_cursor base;         /* Base class.  Must be first */
+  u8 atEOF;                         /* True if at end of search */
+  u8 bPoint;                        /* True if sPoint is valid */
+  u8 bAuxValid;                     /* True if pReadAux is valid */
+  int iStrategy;                    /* Copy of idxNum search parameter */
+  int nConstraint;                  /* Number of entries in aConstraint */
+  RtreeConstraint *aConstraint;     /* Search constraints. */
+  int nPointAlloc;                  /* Number of slots allocated for aPoint[] */
+  int nPoint;                       /* Number of slots used in aPoint[] */
+  int mxLevel;                      /* iLevel value for root of the tree */
+  RtreeSearchPoint *aPoint;         /* Priority queue for search points */
+  sqlite3_stmt *pReadAux;           /* Statement to read aux-data */
+  RtreeSearchPoint sPoint;          /* Cached next search point */
+  RtreeNode *aNode[RTREE_CACHE_SZ]; /* Rtree node cache */
+  u32 anQueue[RTREE_MAX_DEPTH+1];   /* Number of queued entries by iLevel */
+};
+
+/* Return the Rtree of a RtreeCursor */
+#define RTREE_OF_CURSOR(X)   ((Rtree*)((X)->base.pVtab))
+
+/*
+** A coordinate can be either a floating point number or a integer.  All
+** coordinates within a single R-Tree are always of the same time.
+*/
+union RtreeCoord {
+  RtreeValue f;      /* Floating point value */
+  int i;             /* Integer value */
+  u32 u;             /* Unsigned for byte-order conversions */
+};
+
+/*
+** The argument is an RtreeCoord. Return the value stored within the RtreeCoord
+** formatted as a RtreeDValue (double or int64). This macro assumes that local
+** variable pRtree points to the Rtree structure associated with the
+** RtreeCoord.
+*/
+#ifdef SQLITE_RTREE_INT_ONLY
+# define DCOORD(coord) ((RtreeDValue)coord.i)
+#else
+# define DCOORD(coord) (                           \
+    (pRtree->eCoordType==RTREE_COORD_REAL32) ?      \
+      ((double)coord.f) :                           \
+      ((double)coord.i)                             \
+  )
+#endif
+
+/*
+** A search constraint.
+*/
+struct RtreeConstraint {
+  int iCoord;                     /* Index of constrained coordinate */
+  int op;                         /* Constraining operation */
+  union {
+    RtreeDValue rValue;             /* Constraint value. */
+    int (*xGeom)(sqlite3_rtree_geometry*,int,RtreeDValue*,int*);
+    int (*xQueryFunc)(sqlite3_rtree_query_info*);
+  } u;
+  sqlite3_rtree_query_info *pInfo;  /* xGeom and xQueryFunc argument */
+};
+
+/* Possible values for RtreeConstraint.op */
+#define RTREE_EQ    0x41  /* A */
+#define RTREE_LE    0x42  /* B */
+#define RTREE_LT    0x43  /* C */
+#define RTREE_GE    0x44  /* D */
+#define RTREE_GT    0x45  /* E */
+#define RTREE_MATCH 0x46  /* F: Old-style sqlite3_rtree_geometry_callback() */
+#define RTREE_QUERY 0x47  /* G: New-style sqlite3_rtree_query_callback() */
+
+/* Special operators available only on cursors.  Needs to be consecutive
+** with the normal values above, but must be less than RTREE_MATCH.  These
+** are used in the cursor for contraints such as x=NULL (RTREE_FALSE) or
+** x<'xyz' (RTREE_TRUE) */
+#define RTREE_TRUE  0x3f  /* ? */
+#define RTREE_FALSE 0x40  /* @ */
+
+/* 
+** An rtree structure node.
+*/
+struct RtreeNode {
+  RtreeNode *pParent;         /* Parent node */
+  i64 iNode;                  /* The node number */
+  int nRef;                   /* Number of references to this node */
+  int isDirty;                /* True if the node needs to be written to disk */
+  u8 *zData;                  /* Content of the node, as should be on disk */
+  RtreeNode *pNext;           /* Next node in this hash collision chain */
+};
+
+/* Return the number of cells in a node  */
+#define NCELL(pNode) readInt16(&(pNode)->zData[2])
+
+/* 
+** A single cell from a node, deserialized
+*/
+struct RtreeCell {
+  i64 iRowid;                                 /* Node or entry ID */
+  RtreeCoord aCoord[RTREE_MAX_DIMENSIONS*2];  /* Bounding box coordinates */
+};
+
+
+/*
+** This object becomes the sqlite3_user_data() for the SQL functions
+** that are created by sqlite3_rtree_geometry_callback() and
+** sqlite3_rtree_query_callback() and which appear on the right of MATCH
+** operators in order to constrain a search.
+**
+** xGeom and xQueryFunc are the callback functions.  Exactly one of 
+** xGeom and xQueryFunc fields is non-NULL, depending on whether the
+** SQL function was created using sqlite3_rtree_geometry_callback() or
+** sqlite3_rtree_query_callback().
+** 
+** This object is deleted automatically by the destructor mechanism in
+** sqlite3_create_function_v2().
+*/
+struct RtreeGeomCallback {
+  int (*xGeom)(sqlite3_rtree_geometry*, int, RtreeDValue*, int*);
+  int (*xQueryFunc)(sqlite3_rtree_query_info*);
+  void (*xDestructor)(void*);
+  void *pContext;
+};
+
+/*
+** An instance of this structure (in the form of a BLOB) is returned by
+** the SQL functions that sqlite3_rtree_geometry_callback() and
+** sqlite3_rtree_query_callback() create, and is read as the right-hand
+** operand to the MATCH operator of an R-Tree.
+*/
+struct RtreeMatchArg {
+  u32 iSize;                  /* Size of this object */
+  RtreeGeomCallback cb;       /* Info about the callback functions */
+  int nParam;                 /* Number of parameters to the SQL function */
+  sqlite3_value **apSqlParam; /* Original SQL parameter values */
+  RtreeDValue aParam[1];      /* Values for parameters to the SQL function */
+};
+
+#ifndef MAX
+# define MAX(x,y) ((x) < (y) ? (y) : (x))
+#endif
+#ifndef MIN
+# define MIN(x,y) ((x) > (y) ? (y) : (x))
+#endif
+
+/* What version of GCC is being used.  0 means GCC is not being used .
+** Note that the GCC_VERSION macro will also be set correctly when using
+** clang, since clang works hard to be gcc compatible.  So the gcc
+** optimizations will also work when compiling with clang.
+*/
+#ifndef GCC_VERSION
+#if defined(__GNUC__) && !defined(SQLITE_DISABLE_INTRINSIC)
+# define GCC_VERSION (__GNUC__*1000000+__GNUC_MINOR__*1000+__GNUC_PATCHLEVEL__)
+#else
+# define GCC_VERSION 0
+#endif
+#endif
+
+/* The testcase() macro should already be defined in the amalgamation.  If
+** it is not, make it a no-op.
+*/
+#ifndef SQLITE_AMALGAMATION
+# if defined(SQLITE_COVERAGE_TEST) || defined(SQLITE_DEBUG)
+    unsigned int sqlite3RtreeTestcase = 0;
+#   define testcase(X)  if( X ){ sqlite3RtreeTestcase += __LINE__; }
+# else
+#   define testcase(X)
+# endif
+#endif
+
+/*
+** Make sure that the compiler intrinsics we desire are enabled when
+** compiling with an appropriate version of MSVC unless prevented by
+** the SQLITE_DISABLE_INTRINSIC define.
+*/
+#if !defined(SQLITE_DISABLE_INTRINSIC)
+#  if defined(_MSC_VER) && _MSC_VER>=1400
+#    if !defined(_WIN32_WCE)
+#      include <intrin.h>
+#      pragma intrinsic(_byteswap_ulong)
+#      pragma intrinsic(_byteswap_uint64)
+#    else
+#      include <cmnintrin.h>
+#    endif
+#  endif
+#endif
+
+/*
+** Macros to determine whether the machine is big or little endian,
+** and whether or not that determination is run-time or compile-time.
+**
+** For best performance, an attempt is made to guess at the byte-order
+** using C-preprocessor macros.  If that is unsuccessful, or if
+** -DSQLITE_RUNTIME_BYTEORDER=1 is set, then byte-order is determined
+** at run-time.
+*/
+#ifndef SQLITE_BYTEORDER /* Replicate changes at tag-20230904a */
+# if defined(__BYTE_ORDER__) && __BYTE_ORDER__==__ORDER_BIG_ENDIAN__
+#   define SQLITE_BYTEORDER 4321
+# elif defined(__BYTE_ORDER__) && __BYTE_ORDER__==__ORDER_LITTLE_ENDIAN__
+#   define SQLITE_BYTEORDER 1234
+# elif defined(__BIG_ENDIAN__) && __BIG_ENDIAN__==1
+#   define SQLITE_BYTEORDER 4321
+# elif defined(i386)    || defined(__i386__)      || defined(_M_IX86) ||    \
+     defined(__x86_64)  || defined(__x86_64__)    || defined(_M_X64)  ||    \
+     defined(_M_AMD64)  || defined(_M_ARM)        || defined(__x86)   ||    \
+     defined(__ARMEL__) || defined(__AARCH64EL__) || defined(_M_ARM64)
+#   define SQLITE_BYTEORDER 1234
+# elif defined(sparc)   || defined(__ARMEB__)     || defined(__AARCH64EB__)
+#   define SQLITE_BYTEORDER 4321
+# else
+#   define SQLITE_BYTEORDER 0
+# endif
+#endif
+
+
+/* What version of MSVC is being used.  0 means MSVC is not being used */
+#ifndef MSVC_VERSION
+#if defined(_MSC_VER) && !defined(SQLITE_DISABLE_INTRINSIC)
+# define MSVC_VERSION _MSC_VER
+#else
+# define MSVC_VERSION 0
+#endif
+#endif
+
+/*
+** Functions to deserialize a 16 bit integer, 32 bit real number and
+** 64 bit integer. The deserialized value is returned.
+*/
+static int readInt16(u8 *p){
+  return (p[0]<<8) + p[1];
+}
+static void readCoord(u8 *p, RtreeCoord *pCoord){
+  assert( FOUR_BYTE_ALIGNED(p) );
+#if SQLITE_BYTEORDER==1234 && MSVC_VERSION>=1300
+  pCoord->u = _byteswap_ulong(*(u32*)p);
+#elif SQLITE_BYTEORDER==1234 && GCC_VERSION>=4003000
+  pCoord->u = __builtin_bswap32(*(u32*)p);
+#elif SQLITE_BYTEORDER==4321
+  pCoord->u = *(u32*)p;
+#else
+  pCoord->u = (
+    (((u32)p[0]) << 24) + 
+    (((u32)p[1]) << 16) + 
+    (((u32)p[2]) <<  8) + 
+    (((u32)p[3]) <<  0)
+  );
+#endif
+}
+static i64 readInt64(u8 *p){
+#if SQLITE_BYTEORDER==1234 && MSVC_VERSION>=1300
+  u64 x;
+  memcpy(&x, p, 8);
+  return (i64)_byteswap_uint64(x);
+#elif SQLITE_BYTEORDER==1234 && GCC_VERSION>=4003000
+  u64 x;
+  memcpy(&x, p, 8);
+  return (i64)__builtin_bswap64(x);
+#elif SQLITE_BYTEORDER==4321
+  i64 x;
+  memcpy(&x, p, 8);
+  return x;
+#else
+  return (i64)(
+    (((u64)p[0]) << 56) + 
+    (((u64)p[1]) << 48) + 
+    (((u64)p[2]) << 40) + 
+    (((u64)p[3]) << 32) + 
+    (((u64)p[4]) << 24) + 
+    (((u64)p[5]) << 16) + 
+    (((u64)p[6]) <<  8) + 
+    (((u64)p[7]) <<  0)
+  );
+#endif
+}
+
+/*
+** Functions to serialize a 16 bit integer, 32 bit real number and
+** 64 bit integer. The value returned is the number of bytes written
+** to the argument buffer (always 2, 4 and 8 respectively).
+*/
+static void writeInt16(u8 *p, int i){
+  p[0] = (i>> 8)&0xFF;
+  p[1] = (i>> 0)&0xFF;
+}
+static int writeCoord(u8 *p, RtreeCoord *pCoord){
+  u32 i;
+  assert( FOUR_BYTE_ALIGNED(p) );
+  assert( sizeof(RtreeCoord)==4 );
+  assert( sizeof(u32)==4 );
+#if SQLITE_BYTEORDER==1234 && GCC_VERSION>=4003000
+  i = __builtin_bswap32(pCoord->u);
+  memcpy(p, &i, 4);
+#elif SQLITE_BYTEORDER==1234 && MSVC_VERSION>=1300
+  i = _byteswap_ulong(pCoord->u);
+  memcpy(p, &i, 4);
+#elif SQLITE_BYTEORDER==4321
+  i = pCoord->u;
+  memcpy(p, &i, 4);
+#else
+  i = pCoord->u;
+  p[0] = (i>>24)&0xFF;
+  p[1] = (i>>16)&0xFF;
+  p[2] = (i>> 8)&0xFF;
+  p[3] = (i>> 0)&0xFF;
+#endif
+  return 4;
+}
+static int writeInt64(u8 *p, i64 i){
+#if SQLITE_BYTEORDER==1234 && GCC_VERSION>=4003000
+  i = (i64)__builtin_bswap64((u64)i);
+  memcpy(p, &i, 8);
+#elif SQLITE_BYTEORDER==1234 && MSVC_VERSION>=1300
+  i = (i64)_byteswap_uint64((u64)i);
+  memcpy(p, &i, 8);
+#elif SQLITE_BYTEORDER==4321
+  memcpy(p, &i, 8);
+#else
+  p[0] = (i>>56)&0xFF;
+  p[1] = (i>>48)&0xFF;
+  p[2] = (i>>40)&0xFF;
+  p[3] = (i>>32)&0xFF;
+  p[4] = (i>>24)&0xFF;
+  p[5] = (i>>16)&0xFF;
+  p[6] = (i>> 8)&0xFF;
+  p[7] = (i>> 0)&0xFF;
+#endif
+  return 8;
+}
+
+/*
+** Increment the reference count of node p.
+*/
+static void nodeReference(RtreeNode *p){
+  if( p ){
+    assert( p->nRef>0 );
+    p->nRef++;
+  }
+}
+
+/*
+** Clear the content of node p (set all bytes to 0x00).
+*/
+static void nodeZero(Rtree *pRtree, RtreeNode *p){
+  memset(&p->zData[2], 0, pRtree->iNodeSize-2);
+  p->isDirty = 1;
+}
+
+/*
+** Given a node number iNode, return the corresponding key to use
+** in the Rtree.aHash table.
+*/
+static unsigned int nodeHash(i64 iNode){
+  return ((unsigned)iNode) % HASHSIZE;
+}
+
+/*
+** Search the node hash table for node iNode. If found, return a pointer
+** to it. Otherwise, return 0.
+*/
+static RtreeNode *nodeHashLookup(Rtree *pRtree, i64 iNode){
+  RtreeNode *p;
+  for(p=pRtree->aHash[nodeHash(iNode)]; p && p->iNode!=iNode; p=p->pNext);
+  return p;
+}
+
+/*
+** Add node pNode to the node hash table.
+*/
+static void nodeHashInsert(Rtree *pRtree, RtreeNode *pNode){
+  int iHash;
+  assert( pNode->pNext==0 );
+  iHash = nodeHash(pNode->iNode);
+  pNode->pNext = pRtree->aHash[iHash];
+  pRtree->aHash[iHash] = pNode;
+}
+
+/*
+** Remove node pNode from the node hash table.
+*/
+static void nodeHashDelete(Rtree *pRtree, RtreeNode *pNode){
+  RtreeNode **pp;
+  if( pNode->iNode!=0 ){
+    pp = &pRtree->aHash[nodeHash(pNode->iNode)];
+    for( ; (*pp)!=pNode; pp = &(*pp)->pNext){ assert(*pp); }
+    *pp = pNode->pNext;
+    pNode->pNext = 0;
+  }
+}
+
+/*
+** Allocate and return new r-tree node. Initially, (RtreeNode.iNode==0),
+** indicating that node has not yet been assigned a node number. It is
+** assigned a node number when nodeWrite() is called to write the
+** node contents out to the database.
+*/
+static RtreeNode *nodeNew(Rtree *pRtree, RtreeNode *pParent){
+  RtreeNode *pNode;
+  pNode = (RtreeNode *)sqlite3_malloc64(sizeof(RtreeNode) + pRtree->iNodeSize);
+  if( pNode ){
+    memset(pNode, 0, sizeof(RtreeNode) + pRtree->iNodeSize);
+    pNode->zData = (u8 *)&pNode[1];
+    pNode->nRef = 1;
+    pRtree->nNodeRef++;
+    pNode->pParent = pParent;
+    pNode->isDirty = 1;
+    nodeReference(pParent);
+  }
+  return pNode;
+}
+
+/*
+** Clear the Rtree.pNodeBlob object
+*/
+static void nodeBlobReset(Rtree *pRtree){
+  sqlite3_blob *pBlob = pRtree->pNodeBlob;
+  pRtree->pNodeBlob = 0;
+  sqlite3_blob_close(pBlob);
+}
+
+/*
+** Obtain a reference to an r-tree node.
+*/
+static int nodeAcquire(
+  Rtree *pRtree,             /* R-tree structure */
+  i64 iNode,                 /* Node number to load */
+  RtreeNode *pParent,        /* Either the parent node or NULL */
+  RtreeNode **ppNode         /* OUT: Acquired node */
+){
+  int rc = SQLITE_OK;
+  RtreeNode *pNode = 0;
+
+  /* Check if the requested node is already in the hash table. If so,
+  ** increase its reference count and return it.
+  */
+  if( (pNode = nodeHashLookup(pRtree, iNode))!=0 ){
+    if( pParent && ALWAYS(pParent!=pNode->pParent) ){
+      RTREE_IS_CORRUPT(pRtree);
+      return SQLITE_CORRUPT_VTAB;
+    }
+    pNode->nRef++;
+    *ppNode = pNode;
+    return SQLITE_OK;
+  }
+
+  if( pRtree->pNodeBlob ){
+    sqlite3_blob *pBlob = pRtree->pNodeBlob;
+    pRtree->pNodeBlob = 0;
+    rc = sqlite3_blob_reopen(pBlob, iNode);
+    pRtree->pNodeBlob = pBlob;
+    if( rc ){
+      nodeBlobReset(pRtree);
+      if( rc==SQLITE_NOMEM ) return SQLITE_NOMEM;
+    }
+  }
+  if( pRtree->pNodeBlob==0 ){
+    rc = sqlite3_blob_open(pRtree->db, pRtree->zDb, pRtree->zNodeName,
+                           "data", iNode, 0,
+                           &pRtree->pNodeBlob);
+  }
+  if( rc ){
+    *ppNode = 0;
+    /* If unable to open an sqlite3_blob on the desired row, that can only
+    ** be because the shadow tables hold erroneous data. */
+    if( rc==SQLITE_ERROR ){
+      rc = SQLITE_CORRUPT_VTAB;
+      RTREE_IS_CORRUPT(pRtree);
+    }
+  }else if( pRtree->iNodeSize==sqlite3_blob_bytes(pRtree->pNodeBlob) ){
+    pNode = (RtreeNode *)sqlite3_malloc64(sizeof(RtreeNode)+pRtree->iNodeSize);
+    if( !pNode ){
+      rc = SQLITE_NOMEM;
+    }else{
+      pNode->pParent = pParent;
+      pNode->zData = (u8 *)&pNode[1];
+      pNode->nRef = 1;
+      pRtree->nNodeRef++;
+      pNode->iNode = iNode;
+      pNode->isDirty = 0;
+      pNode->pNext = 0;
+      rc = sqlite3_blob_read(pRtree->pNodeBlob, pNode->zData,
+                             pRtree->iNodeSize, 0);
+    }
+  }
+
+  /* If the root node was just loaded, set pRtree->iDepth to the height
+  ** of the r-tree structure. A height of zero means all data is stored on
+  ** the root node. A height of one means the children of the root node
+  ** are the leaves, and so on. If the depth as specified on the root node
+  ** is greater than RTREE_MAX_DEPTH, the r-tree structure must be corrupt.
+  */
+  if( rc==SQLITE_OK && pNode && iNode==1 ){
+    pRtree->iDepth = readInt16(pNode->zData);
+    if( pRtree->iDepth>RTREE_MAX_DEPTH ){
+      rc = SQLITE_CORRUPT_VTAB;
+      RTREE_IS_CORRUPT(pRtree);
+    }
+  }
+
+  /* If no error has occurred so far, check if the "number of entries"
+  ** field on the node is too large. If so, set the return code to 
+  ** SQLITE_CORRUPT_VTAB.
+  */
+  if( pNode && rc==SQLITE_OK ){
+    if( NCELL(pNode)>((pRtree->iNodeSize-4)/pRtree->nBytesPerCell) ){
+      rc = SQLITE_CORRUPT_VTAB;
+      RTREE_IS_CORRUPT(pRtree);
+    }
+  }
+
+  if( rc==SQLITE_OK ){
+    if( pNode!=0 ){
+      nodeReference(pParent);
+      nodeHashInsert(pRtree, pNode);
+    }else{
+      rc = SQLITE_CORRUPT_VTAB;
+      RTREE_IS_CORRUPT(pRtree);
+    }
+    *ppNode = pNode;
+  }else{
+    nodeBlobReset(pRtree);
+    if( pNode ){
+      pRtree->nNodeRef--;
+      sqlite3_free(pNode);
+    }
+    *ppNode = 0;
+  }
+
+  return rc;
+}
+
+/*
+** Overwrite cell iCell of node pNode with the contents of pCell.
+*/
+static void nodeOverwriteCell(
+  Rtree *pRtree,             /* The overall R-Tree */
+  RtreeNode *pNode,          /* The node into which the cell is to be written */
+  RtreeCell *pCell,          /* The cell to write */
+  int iCell                  /* Index into pNode into which pCell is written */
+){
+  int ii;
+  u8 *p = &pNode->zData[4 + pRtree->nBytesPerCell*iCell];
+  p += writeInt64(p, pCell->iRowid);
+  for(ii=0; ii<pRtree->nDim2; ii++){
+    p += writeCoord(p, &pCell->aCoord[ii]);
+  }
+  pNode->isDirty = 1;
+}
+
+/*
+** Remove the cell with index iCell from node pNode.
+*/
+static void nodeDeleteCell(Rtree *pRtree, RtreeNode *pNode, int iCell){
+  u8 *pDst = &pNode->zData[4 + pRtree->nBytesPerCell*iCell];
+  u8 *pSrc = &pDst[pRtree->nBytesPerCell];
+  int nByte = (NCELL(pNode) - iCell - 1) * pRtree->nBytesPerCell;
+  memmove(pDst, pSrc, nByte);
+  writeInt16(&pNode->zData[2], NCELL(pNode)-1);
+  pNode->isDirty = 1;
+}
+
+/*
+** Insert the contents of cell pCell into node pNode. If the insert
+** is successful, return SQLITE_OK.
+**
+** If there is not enough free space in pNode, return SQLITE_FULL.
+*/
+static int nodeInsertCell(
+  Rtree *pRtree,                /* The overall R-Tree */
+  RtreeNode *pNode,             /* Write new cell into this node */
+  RtreeCell *pCell              /* The cell to be inserted */
+){
+  int nCell;                    /* Current number of cells in pNode */
+  int nMaxCell;                 /* Maximum number of cells for pNode */
+
+  nMaxCell = (pRtree->iNodeSize-4)/pRtree->nBytesPerCell;
+  nCell = NCELL(pNode);
+
+  assert( nCell<=nMaxCell );
+  if( nCell<nMaxCell ){
+    nodeOverwriteCell(pRtree, pNode, pCell, nCell);
+    writeInt16(&pNode->zData[2], nCell+1);
+    pNode->isDirty = 1;
+  }
+
+  return (nCell==nMaxCell);
+}
+
+/*
+** If the node is dirty, write it out to the database.
+*/
+static int nodeWrite(Rtree *pRtree, RtreeNode *pNode){
+  int rc = SQLITE_OK;
+  if( pNode->isDirty ){
+    sqlite3_stmt *p = pRtree->pWriteNode;
+    if( pNode->iNode ){
+      sqlite3_bind_int64(p, 1, pNode->iNode);
+    }else{
+      sqlite3_bind_null(p, 1);
+    }
+    sqlite3_bind_blob(p, 2, pNode->zData, pRtree->iNodeSize, SQLITE_STATIC);
+    sqlite3_step(p);
+    pNode->isDirty = 0;
+    rc = sqlite3_reset(p);
+    sqlite3_bind_null(p, 2);
+    if( pNode->iNode==0 && rc==SQLITE_OK ){
+      pNode->iNode = sqlite3_last_insert_rowid(pRtree->db);
+      nodeHashInsert(pRtree, pNode);
+    }
+  }
+  return rc;
+}
+
+/*
+** Release a reference to a node. If the node is dirty and the reference
+** count drops to zero, the node data is written to the database.
+*/
+static int nodeRelease(Rtree *pRtree, RtreeNode *pNode){
+  int rc = SQLITE_OK;
+  if( pNode ){
+    assert( pNode->nRef>0 );
+    assert( pRtree->nNodeRef>0 );
+    pNode->nRef--;
+    if( pNode->nRef==0 ){
+      pRtree->nNodeRef--;
+      if( pNode->iNode==1 ){
+        pRtree->iDepth = -1;
+      }
+      if( pNode->pParent ){
+        rc = nodeRelease(pRtree, pNode->pParent);
+      }
+      if( rc==SQLITE_OK ){
+        rc = nodeWrite(pRtree, pNode);
+      }
+      nodeHashDelete(pRtree, pNode);
+      sqlite3_free(pNode);
+    }
+  }
+  return rc;
+}
+
+/*
+** Return the 64-bit integer value associated with cell iCell of
+** node pNode. If pNode is a leaf node, this is a rowid. If it is
+** an internal node, then the 64-bit integer is a child page number.
+*/
+static i64 nodeGetRowid(
+  Rtree *pRtree,       /* The overall R-Tree */
+  RtreeNode *pNode,    /* The node from which to extract the ID */
+  int iCell            /* The cell index from which to extract the ID */
+){
+  assert( iCell<NCELL(pNode) );
+  return readInt64(&pNode->zData[4 + pRtree->nBytesPerCell*iCell]);
+}
+
+/*
+** Return coordinate iCoord from cell iCell in node pNode.
+*/
+static void nodeGetCoord(
+  Rtree *pRtree,               /* The overall R-Tree */
+  RtreeNode *pNode,            /* The node from which to extract a coordinate */
+  int iCell,                   /* The index of the cell within the node */
+  int iCoord,                  /* Which coordinate to extract */
+  RtreeCoord *pCoord           /* OUT: Space to write result to */
+){
+  assert( iCell<NCELL(pNode) );
+  readCoord(&pNode->zData[12 + pRtree->nBytesPerCell*iCell + 4*iCoord], pCoord);
+}
+
+/*
+** Deserialize cell iCell of node pNode. Populate the structure pointed
+** to by pCell with the results.
+*/
+static void nodeGetCell(
+  Rtree *pRtree,               /* The overall R-Tree */
+  RtreeNode *pNode,            /* The node containing the cell to be read */
+  int iCell,                   /* Index of the cell within the node */
+  RtreeCell *pCell             /* OUT: Write the cell contents here */
+){
+  u8 *pData;
+  RtreeCoord *pCoord;
+  int ii = 0;
+  pCell->iRowid = nodeGetRowid(pRtree, pNode, iCell);
+  pData = pNode->zData + (12 + pRtree->nBytesPerCell*iCell);
+  pCoord = pCell->aCoord;
+  do{
+    readCoord(pData, &pCoord[ii]);
+    readCoord(pData+4, &pCoord[ii+1]);
+    pData += 8;
+    ii += 2;
+  }while( ii<pRtree->nDim2 );
+}
+
+
+/* Forward declaration for the function that does the work of
+** the virtual table module xCreate() and xConnect() methods.
+*/
+static int rtreeInit(
+  sqlite3 *, void *, int, const char *const*, sqlite3_vtab **, char **, int
+);
+
+/* 
+** Rtree virtual table module xCreate method.
+*/
+static int rtreeCreate(
+  sqlite3 *db,
+  void *pAux,
+  int argc, const char *const*argv,
+  sqlite3_vtab **ppVtab,
+  char **pzErr
+){
+  return rtreeInit(db, pAux, argc, argv, ppVtab, pzErr, 1);
+}
+
+/* 
+** Rtree virtual table module xConnect method.
+*/
+static int rtreeConnect(
+  sqlite3 *db,
+  void *pAux,
+  int argc, const char *const*argv,
+  sqlite3_vtab **ppVtab,
+  char **pzErr
+){
+  return rtreeInit(db, pAux, argc, argv, ppVtab, pzErr, 0);
+}
+
+/*
+** Increment the r-tree reference count.
+*/
+static void rtreeReference(Rtree *pRtree){
+  pRtree->nBusy++;
+}
+
+/*
+** Decrement the r-tree reference count. When the reference count reaches
+** zero the structure is deleted.
+*/
+static void rtreeRelease(Rtree *pRtree){
+  pRtree->nBusy--;
+  if( pRtree->nBusy==0 ){
+    pRtree->inWrTrans = 0;
+    assert( pRtree->nCursor==0 );
+    nodeBlobReset(pRtree);
+    assert( pRtree->nNodeRef==0 || pRtree->bCorrupt );
+    sqlite3_finalize(pRtree->pWriteNode);
+    sqlite3_finalize(pRtree->pDeleteNode);
+    sqlite3_finalize(pRtree->pReadRowid);
+    sqlite3_finalize(pRtree->pWriteRowid);
+    sqlite3_finalize(pRtree->pDeleteRowid);
+    sqlite3_finalize(pRtree->pReadParent);
+    sqlite3_finalize(pRtree->pWriteParent);
+    sqlite3_finalize(pRtree->pDeleteParent);
+    sqlite3_finalize(pRtree->pWriteAux);
+    sqlite3_free(pRtree->zReadAuxSql);
+    sqlite3_free(pRtree);
+  }
+}
+
+/* 
+** Rtree virtual table module xDisconnect method.
+*/
+static int rtreeDisconnect(sqlite3_vtab *pVtab){
+  rtreeRelease((Rtree *)pVtab);
+  return SQLITE_OK;
+}
+
+/* 
+** Rtree virtual table module xDestroy method.
+*/
+static int rtreeDestroy(sqlite3_vtab *pVtab){
+  Rtree *pRtree = (Rtree *)pVtab;
+  int rc;
+  char *zCreate = sqlite3_mprintf(
+    "DROP TABLE '%q'.'%q_node';"
+    "DROP TABLE '%q'.'%q_rowid';"
+    "DROP TABLE '%q'.'%q_parent';",
+    pRtree->zDb, pRtree->zName, 
+    pRtree->zDb, pRtree->zName,
+    pRtree->zDb, pRtree->zName
+  );
+  if( !zCreate ){
+    rc = SQLITE_NOMEM;
+  }else{
+    nodeBlobReset(pRtree);
+    rc = sqlite3_exec(pRtree->db, zCreate, 0, 0, 0);
+    sqlite3_free(zCreate);
+  }
+  if( rc==SQLITE_OK ){
+    rtreeRelease(pRtree);
+  }
+
+  return rc;
+}
+
+/* 
+** Rtree virtual table module xOpen method.
+*/
+static int rtreeOpen(sqlite3_vtab *pVTab, sqlite3_vtab_cursor **ppCursor){
+  int rc = SQLITE_NOMEM;
+  Rtree *pRtree = (Rtree *)pVTab;
+  RtreeCursor *pCsr;
+
+  pCsr = (RtreeCursor *)sqlite3_malloc64(sizeof(RtreeCursor));
+  if( pCsr ){
+    memset(pCsr, 0, sizeof(RtreeCursor));
+    pCsr->base.pVtab = pVTab;
+    rc = SQLITE_OK;
+    pRtree->nCursor++;
+  }
+  *ppCursor = (sqlite3_vtab_cursor *)pCsr;
+
+  return rc;
+}
+
+
+/*
+** Reset a cursor back to its initial state.
+*/
+static void resetCursor(RtreeCursor *pCsr){
+  Rtree *pRtree = (Rtree *)(pCsr->base.pVtab);
+  int ii;
+  sqlite3_stmt *pStmt;
+  if( pCsr->aConstraint ){
+    int i;                        /* Used to iterate through constraint array */
+    for(i=0; i<pCsr->nConstraint; i++){
+      sqlite3_rtree_query_info *pInfo = pCsr->aConstraint[i].pInfo;
+      if( pInfo ){
+        if( pInfo->xDelUser ) pInfo->xDelUser(pInfo->pUser);
+        sqlite3_free(pInfo);
+      }
+    }
+    sqlite3_free(pCsr->aConstraint);
+    pCsr->aConstraint = 0;
+  }
+  for(ii=0; ii<RTREE_CACHE_SZ; ii++) nodeRelease(pRtree, pCsr->aNode[ii]);
+  sqlite3_free(pCsr->aPoint);
+  pStmt = pCsr->pReadAux;
+  memset(pCsr, 0, sizeof(RtreeCursor));
+  pCsr->base.pVtab = (sqlite3_vtab*)pRtree;
+  pCsr->pReadAux = pStmt;
+
+}
+
+/* 
+** Rtree virtual table module xClose method.
+*/
+static int rtreeClose(sqlite3_vtab_cursor *cur){
+  Rtree *pRtree = (Rtree *)(cur->pVtab);
+  RtreeCursor *pCsr = (RtreeCursor *)cur;
+  assert( pRtree->nCursor>0 );
+  resetCursor(pCsr);
+  sqlite3_finalize(pCsr->pReadAux);
+  sqlite3_free(pCsr);
+  pRtree->nCursor--;
+  if( pRtree->nCursor==0 && pRtree->inWrTrans==0 ){
+    nodeBlobReset(pRtree);
+  }
+  return SQLITE_OK;
+}
+
+/*
+** Rtree virtual table module xEof method.
+**
+** Return non-zero if the cursor does not currently point to a valid 
+** record (i.e if the scan has finished), or zero otherwise.
+*/
+static int rtreeEof(sqlite3_vtab_cursor *cur){
+  RtreeCursor *pCsr = (RtreeCursor *)cur;
+  return pCsr->atEOF;
+}
+
+/*
+** Convert raw bits from the on-disk RTree record into a coordinate value.
+** The on-disk format is big-endian and needs to be converted for little-
+** endian platforms.  The on-disk record stores integer coordinates if
+** eInt is true and it stores 32-bit floating point records if eInt is
+** false.  a[] is the four bytes of the on-disk record to be decoded.
+** Store the results in "r".
+**
+** There are five versions of this macro.  The last one is generic.  The
+** other four are various architectures-specific optimizations.
+*/
+#if SQLITE_BYTEORDER==1234 && MSVC_VERSION>=1300
+#define RTREE_DECODE_COORD(eInt, a, r) {                        \
+    RtreeCoord c;    /* Coordinate decoded */                   \
+    c.u = _byteswap_ulong(*(u32*)a);                            \
+    r = eInt ? (sqlite3_rtree_dbl)c.i : (sqlite3_rtree_dbl)c.f; \
+}
+#elif SQLITE_BYTEORDER==1234 && GCC_VERSION>=4003000
+#define RTREE_DECODE_COORD(eInt, a, r) {                        \
+    RtreeCoord c;    /* Coordinate decoded */                   \
+    c.u = __builtin_bswap32(*(u32*)a);                          \
+    r = eInt ? (sqlite3_rtree_dbl)c.i : (sqlite3_rtree_dbl)c.f; \
+}
+#elif SQLITE_BYTEORDER==1234
+#define RTREE_DECODE_COORD(eInt, a, r) {                        \
+    RtreeCoord c;    /* Coordinate decoded */                   \
+    memcpy(&c.u,a,4);                                           \
+    c.u = ((c.u>>24)&0xff)|((c.u>>8)&0xff00)|                   \
+          ((c.u&0xff)<<24)|((c.u&0xff00)<<8);                   \
+    r = eInt ? (sqlite3_rtree_dbl)c.i : (sqlite3_rtree_dbl)c.f; \
+}
+#elif SQLITE_BYTEORDER==4321
+#define RTREE_DECODE_COORD(eInt, a, r) {                        \
+    RtreeCoord c;    /* Coordinate decoded */                   \
+    memcpy(&c.u,a,4);                                           \
+    r = eInt ? (sqlite3_rtree_dbl)c.i : (sqlite3_rtree_dbl)c.f; \
+}
+#else
+#define RTREE_DECODE_COORD(eInt, a, r) {                        \
+    RtreeCoord c;    /* Coordinate decoded */                   \
+    c.u = ((u32)a[0]<<24) + ((u32)a[1]<<16)                     \
+           +((u32)a[2]<<8) + a[3];                              \
+    r = eInt ? (sqlite3_rtree_dbl)c.i : (sqlite3_rtree_dbl)c.f; \
+}
+#endif
+
+/*
+** Check the RTree node or entry given by pCellData and p against the MATCH
+** constraint pConstraint.  
+*/
+static int rtreeCallbackConstraint(
+  RtreeConstraint *pConstraint,  /* The constraint to test */
+  int eInt,                      /* True if RTree holding integer coordinates */
+  u8 *pCellData,                 /* Raw cell content */
+  RtreeSearchPoint *pSearch,     /* Container of this cell */
+  sqlite3_rtree_dbl *prScore,    /* OUT: score for the cell */
+  int *peWithin                  /* OUT: visibility of the cell */
+){
+  sqlite3_rtree_query_info *pInfo = pConstraint->pInfo; /* Callback info */
+  int nCoord = pInfo->nCoord;                           /* No. of coordinates */
+  int rc;                                             /* Callback return code */
+  RtreeCoord c;                                       /* Translator union */
+  sqlite3_rtree_dbl aCoord[RTREE_MAX_DIMENSIONS*2];   /* Decoded coordinates */
+
+  assert( pConstraint->op==RTREE_MATCH || pConstraint->op==RTREE_QUERY );
+  assert( nCoord==2 || nCoord==4 || nCoord==6 || nCoord==8 || nCoord==10 );
+
+  if( pConstraint->op==RTREE_QUERY && pSearch->iLevel==1 ){
+    pInfo->iRowid = readInt64(pCellData);
+  }
+  pCellData += 8;
+#ifndef SQLITE_RTREE_INT_ONLY
+  if( eInt==0 ){
+    switch( nCoord ){
+      case 10:  readCoord(pCellData+36, &c); aCoord[9] = c.f;
+                readCoord(pCellData+32, &c); aCoord[8] = c.f;
+      case 8:   readCoord(pCellData+28, &c); aCoord[7] = c.f;
+                readCoord(pCellData+24, &c); aCoord[6] = c.f;
+      case 6:   readCoord(pCellData+20, &c); aCoord[5] = c.f;
+                readCoord(pCellData+16, &c); aCoord[4] = c.f;
+      case 4:   readCoord(pCellData+12, &c); aCoord[3] = c.f;
+                readCoord(pCellData+8,  &c); aCoord[2] = c.f;
+      default:  readCoord(pCellData+4,  &c); aCoord[1] = c.f;
+                readCoord(pCellData,    &c); aCoord[0] = c.f;
+    }
+  }else
+#endif
+  {
+    switch( nCoord ){
+      case 10:  readCoord(pCellData+36, &c); aCoord[9] = c.i;
+                readCoord(pCellData+32, &c); aCoord[8] = c.i;
+      case 8:   readCoord(pCellData+28, &c); aCoord[7] = c.i;
+                readCoord(pCellData+24, &c); aCoord[6] = c.i;
+      case 6:   readCoord(pCellData+20, &c); aCoord[5] = c.i;
+                readCoord(pCellData+16, &c); aCoord[4] = c.i;
+      case 4:   readCoord(pCellData+12, &c); aCoord[3] = c.i;
+                readCoord(pCellData+8,  &c); aCoord[2] = c.i;
+      default:  readCoord(pCellData+4,  &c); aCoord[1] = c.i;
+                readCoord(pCellData,    &c); aCoord[0] = c.i;
+    }
+  }
+  if( pConstraint->op==RTREE_MATCH ){
+    int eWithin = 0;
+    rc = pConstraint->u.xGeom((sqlite3_rtree_geometry*)pInfo,
+                              nCoord, aCoord, &eWithin);
+    if( eWithin==0 ) *peWithin = NOT_WITHIN;
+    *prScore = RTREE_ZERO;
+  }else{
+    pInfo->aCoord = aCoord;
+    pInfo->iLevel = pSearch->iLevel - 1;
+    pInfo->rScore = pInfo->rParentScore = pSearch->rScore;
+    pInfo->eWithin = pInfo->eParentWithin = pSearch->eWithin;
+    rc = pConstraint->u.xQueryFunc(pInfo);
+    if( pInfo->eWithin<*peWithin ) *peWithin = pInfo->eWithin;
+    if( pInfo->rScore<*prScore || *prScore<RTREE_ZERO ){
+      *prScore = pInfo->rScore;
+    }
+  }
+  return rc;
+}
+
+/* 
+** Check the internal RTree node given by pCellData against constraint p.
+** If this constraint cannot be satisfied by any child within the node,
+** set *peWithin to NOT_WITHIN.
+*/
+static void rtreeNonleafConstraint(
+  RtreeConstraint *p,        /* The constraint to test */
+  int eInt,                  /* True if RTree holds integer coordinates */
+  u8 *pCellData,             /* Raw cell content as appears on disk */
+  int *peWithin              /* Adjust downward, as appropriate */
+){
+  sqlite3_rtree_dbl val;     /* Coordinate value convert to a double */
+
+  /* p->iCoord might point to either a lower or upper bound coordinate
+  ** in a coordinate pair.  But make pCellData point to the lower bound.
+  */
+  pCellData += 8 + 4*(p->iCoord&0xfe);
+
+  assert(p->op==RTREE_LE || p->op==RTREE_LT || p->op==RTREE_GE 
+      || p->op==RTREE_GT || p->op==RTREE_EQ || p->op==RTREE_TRUE
+      || p->op==RTREE_FALSE );
+  assert( FOUR_BYTE_ALIGNED(pCellData) );
+  switch( p->op ){
+    case RTREE_TRUE:  return;   /* Always satisfied */
+    case RTREE_FALSE: break;    /* Never satisfied */
+    case RTREE_EQ:
+      RTREE_DECODE_COORD(eInt, pCellData, val);
+      /* val now holds the lower bound of the coordinate pair */
+      if( p->u.rValue>=val ){
+        pCellData += 4;
+        RTREE_DECODE_COORD(eInt, pCellData, val);
+        /* val now holds the upper bound of the coordinate pair */
+        if( p->u.rValue<=val ) return;
+      }
+      break;
+    case RTREE_LE:
+    case RTREE_LT:
+      RTREE_DECODE_COORD(eInt, pCellData, val);
+      /* val now holds the lower bound of the coordinate pair */
+      if( p->u.rValue>=val ) return;
+      break;
+
+    default:
+      pCellData += 4;
+      RTREE_DECODE_COORD(eInt, pCellData, val);
+      /* val now holds the upper bound of the coordinate pair */
+      if( p->u.rValue<=val ) return;
+      break;
+  }
+  *peWithin = NOT_WITHIN;
+}
+
+/*
+** Check the leaf RTree cell given by pCellData against constraint p.
+** If this constraint is not satisfied, set *peWithin to NOT_WITHIN.
+** If the constraint is satisfied, leave *peWithin unchanged.
+**
+** The constraint is of the form:  xN op $val
+**
+** The op is given by p->op.  The xN is p->iCoord-th coordinate in
+** pCellData.  $val is given by p->u.rValue.
+*/
+static void rtreeLeafConstraint(
+  RtreeConstraint *p,        /* The constraint to test */
+  int eInt,                  /* True if RTree holds integer coordinates */
+  u8 *pCellData,             /* Raw cell content as appears on disk */
+  int *peWithin              /* Adjust downward, as appropriate */
+){
+  RtreeDValue xN;      /* Coordinate value converted to a double */
+
+  assert(p->op==RTREE_LE || p->op==RTREE_LT || p->op==RTREE_GE 
+      || p->op==RTREE_GT || p->op==RTREE_EQ || p->op==RTREE_TRUE
+      || p->op==RTREE_FALSE );
+  pCellData += 8 + p->iCoord*4;
+  assert( FOUR_BYTE_ALIGNED(pCellData) );
+  RTREE_DECODE_COORD(eInt, pCellData, xN);
+  switch( p->op ){
+    case RTREE_TRUE:  return;   /* Always satisfied */
+    case RTREE_FALSE: break;    /* Never satisfied */
+    case RTREE_LE:    if( xN <= p->u.rValue ) return;  break;
+    case RTREE_LT:    if( xN <  p->u.rValue ) return;  break;
+    case RTREE_GE:    if( xN >= p->u.rValue ) return;  break;
+    case RTREE_GT:    if( xN >  p->u.rValue ) return;  break;
+    default:          if( xN == p->u.rValue ) return;  break;
+  }
+  *peWithin = NOT_WITHIN;
+}
+
+/*
+** One of the cells in node pNode is guaranteed to have a 64-bit 
+** integer value equal to iRowid. Return the index of this cell.
+*/
+static int nodeRowidIndex(
+  Rtree *pRtree, 
+  RtreeNode *pNode, 
+  i64 iRowid,
+  int *piIndex
+){
+  int ii;
+  int nCell = NCELL(pNode);
+  assert( nCell<200 );
+  for(ii=0; ii<nCell; ii++){
+    if( nodeGetRowid(pRtree, pNode, ii)==iRowid ){
+      *piIndex = ii;
+      return SQLITE_OK;
+    }
+  }
+  RTREE_IS_CORRUPT(pRtree);
+  return SQLITE_CORRUPT_VTAB;
+}
+
+/*
+** Return the index of the cell containing a pointer to node pNode
+** in its parent. If pNode is the root node, return -1.
+*/
+static int nodeParentIndex(Rtree *pRtree, RtreeNode *pNode, int *piIndex){
+  RtreeNode *pParent = pNode->pParent;
+  if( ALWAYS(pParent) ){
+    return nodeRowidIndex(pRtree, pParent, pNode->iNode, piIndex);
+  }else{
+    *piIndex = -1;
+    return SQLITE_OK;
+  }
+}
+
+/*
+** Compare two search points.  Return negative, zero, or positive if the first
+** is less than, equal to, or greater than the second.
+**
+** The rScore is the primary key.  Smaller rScore values come first.
+** If the rScore is a tie, then use iLevel as the tie breaker with smaller
+** iLevel values coming first.  In this way, if rScore is the same for all
+** SearchPoints, then iLevel becomes the deciding factor and the result
+** is a depth-first search, which is the desired default behavior.
+*/
+static int rtreeSearchPointCompare(
+  const RtreeSearchPoint *pA,
+  const RtreeSearchPoint *pB
+){
+  if( pA->rScore<pB->rScore ) return -1;
+  if( pA->rScore>pB->rScore ) return +1;
+  if( pA->iLevel<pB->iLevel ) return -1;
+  if( pA->iLevel>pB->iLevel ) return +1;
+  return 0;
+}
+
+/*
+** Interchange two search points in a cursor.
+*/
+static void rtreeSearchPointSwap(RtreeCursor *p, int i, int j){
+  RtreeSearchPoint t = p->aPoint[i];
+  assert( i<j );
+  p->aPoint[i] = p->aPoint[j];
+  p->aPoint[j] = t;
+  i++; j++;
+  if( i<RTREE_CACHE_SZ ){
+    if( j>=RTREE_CACHE_SZ ){
+      nodeRelease(RTREE_OF_CURSOR(p), p->aNode[i]);
+      p->aNode[i] = 0;
+    }else{
+      RtreeNode *pTemp = p->aNode[i];
+      p->aNode[i] = p->aNode[j];
+      p->aNode[j] = pTemp;
+    }
+  }
+}
+
+/*
+** Return the search point with the lowest current score.
+*/
+static RtreeSearchPoint *rtreeSearchPointFirst(RtreeCursor *pCur){
+  return pCur->bPoint ? &pCur->sPoint : pCur->nPoint ? pCur->aPoint : 0;
+}
+
+/*
+** Get the RtreeNode for the search point with the lowest score.
+*/
+static RtreeNode *rtreeNodeOfFirstSearchPoint(RtreeCursor *pCur, int *pRC){
+  sqlite3_int64 id;
+  int ii = 1 - pCur->bPoint;
+  assert( ii==0 || ii==1 );
+  assert( pCur->bPoint || pCur->nPoint );
+  if( pCur->aNode[ii]==0 ){
+    assert( pRC!=0 );
+    id = ii ? pCur->aPoint[0].id : pCur->sPoint.id;
+    *pRC = nodeAcquire(RTREE_OF_CURSOR(pCur), id, 0, &pCur->aNode[ii]);
+  }
+  return pCur->aNode[ii];
+}
+
+/*
+** Push a new element onto the priority queue
+*/
+static RtreeSearchPoint *rtreeEnqueue(
+  RtreeCursor *pCur,    /* The cursor */
+  RtreeDValue rScore,   /* Score for the new search point */
+  u8 iLevel             /* Level for the new search point */
+){
+  int i, j;
+  RtreeSearchPoint *pNew;
+  if( pCur->nPoint>=pCur->nPointAlloc ){
+    int nNew = pCur->nPointAlloc*2 + 8;
+    pNew = sqlite3_realloc64(pCur->aPoint, nNew*sizeof(pCur->aPoint[0]));
+    if( pNew==0 ) return 0;
+    pCur->aPoint = pNew;
+    pCur->nPointAlloc = nNew;
+  }
+  i = pCur->nPoint++;
+  pNew = pCur->aPoint + i;
+  pNew->rScore = rScore;
+  pNew->iLevel = iLevel;
+  assert( iLevel<=RTREE_MAX_DEPTH );
+  while( i>0 ){
+    RtreeSearchPoint *pParent;
+    j = (i-1)/2;
+    pParent = pCur->aPoint + j;
+    if( rtreeSearchPointCompare(pNew, pParent)>=0 ) break;
+    rtreeSearchPointSwap(pCur, j, i);
+    i = j;
+    pNew = pParent;
+  }
+  return pNew;
+}
+
+/*
+** Allocate a new RtreeSearchPoint and return a pointer to it.  Return
+** NULL if malloc fails.
+*/
+static RtreeSearchPoint *rtreeSearchPointNew(
+  RtreeCursor *pCur,    /* The cursor */
+  RtreeDValue rScore,   /* Score for the new search point */
+  u8 iLevel             /* Level for the new search point */
+){
+  RtreeSearchPoint *pNew, *pFirst;
+  pFirst = rtreeSearchPointFirst(pCur);
+  pCur->anQueue[iLevel]++;
+  if( pFirst==0
+   || pFirst->rScore>rScore 
+   || (pFirst->rScore==rScore && pFirst->iLevel>iLevel)
+  ){
+    if( pCur->bPoint ){
+      int ii;
+      pNew = rtreeEnqueue(pCur, rScore, iLevel);
+      if( pNew==0 ) return 0;
+      ii = (int)(pNew - pCur->aPoint) + 1;
+      assert( ii==1 );
+      if( ALWAYS(ii<RTREE_CACHE_SZ) ){
+        assert( pCur->aNode[ii]==0 );
+        pCur->aNode[ii] = pCur->aNode[0];
+      }else{
+        nodeRelease(RTREE_OF_CURSOR(pCur), pCur->aNode[0]);
+      }
+      pCur->aNode[0] = 0;
+      *pNew = pCur->sPoint;
+    }
+    pCur->sPoint.rScore = rScore;
+    pCur->sPoint.iLevel = iLevel;
+    pCur->bPoint = 1;
+    return &pCur->sPoint;
+  }else{
+    return rtreeEnqueue(pCur, rScore, iLevel);
+  }
+}
+
+#if 0
+/* Tracing routines for the RtreeSearchPoint queue */
+static void tracePoint(RtreeSearchPoint *p, int idx, RtreeCursor *pCur){
+  if( idx<0 ){ printf(" s"); }else{ printf("%2d", idx); }
+  printf(" %d.%05lld.%02d %g %d",
+    p->iLevel, p->id, p->iCell, p->rScore, p->eWithin
+  );
+  idx++;
+  if( idx<RTREE_CACHE_SZ ){
+    printf(" %p\n", pCur->aNode[idx]);
+  }else{
+    printf("\n");
+  }
+}
+static void traceQueue(RtreeCursor *pCur, const char *zPrefix){
+  int ii;
+  printf("=== %9s ", zPrefix);
+  if( pCur->bPoint ){
+    tracePoint(&pCur->sPoint, -1, pCur);
+  }
+  for(ii=0; ii<pCur->nPoint; ii++){
+    if( ii>0 || pCur->bPoint ) printf("              ");
+    tracePoint(&pCur->aPoint[ii], ii, pCur);
+  }
+}
+# define RTREE_QUEUE_TRACE(A,B) traceQueue(A,B)
+#else
+# define RTREE_QUEUE_TRACE(A,B)   /* no-op */
+#endif
+
+/* Remove the search point with the lowest current score.
+*/
+static void rtreeSearchPointPop(RtreeCursor *p){
+  int i, j, k, n;
+  i = 1 - p->bPoint;
+  assert( i==0 || i==1 );
+  if( p->aNode[i] ){
+    nodeRelease(RTREE_OF_CURSOR(p), p->aNode[i]);
+    p->aNode[i] = 0;
+  }
+  if( p->bPoint ){
+    p->anQueue[p->sPoint.iLevel]--;
+    p->bPoint = 0;
+  }else if( ALWAYS(p->nPoint) ){
+    p->anQueue[p->aPoint[0].iLevel]--;
+    n = --p->nPoint;
+    p->aPoint[0] = p->aPoint[n];
+    if( n<RTREE_CACHE_SZ-1 ){
+      p->aNode[1] = p->aNode[n+1];
+      p->aNode[n+1] = 0;
+    }
+    i = 0;
+    while( (j = i*2+1)<n ){
+      k = j+1;
+      if( k<n && rtreeSearchPointCompare(&p->aPoint[k], &p->aPoint[j])<0 ){
+        if( rtreeSearchPointCompare(&p->aPoint[k], &p->aPoint[i])<0 ){
+          rtreeSearchPointSwap(p, i, k);
+          i = k;
+        }else{
+          break;
+        }
+      }else{
+        if( rtreeSearchPointCompare(&p->aPoint[j], &p->aPoint[i])<0 ){
+          rtreeSearchPointSwap(p, i, j);
+          i = j;
+        }else{
+          break;
+        }
+      }
+    }
+  }
+}
+
+
+/*
+** Continue the search on cursor pCur until the front of the queue
+** contains an entry suitable for returning as a result-set row,
+** or until the RtreeSearchPoint queue is empty, indicating that the
+** query has completed.
+*/
+static int rtreeStepToLeaf(RtreeCursor *pCur){
+  RtreeSearchPoint *p;
+  Rtree *pRtree = RTREE_OF_CURSOR(pCur);
+  RtreeNode *pNode;
+  int eWithin;
+  int rc = SQLITE_OK;
+  int nCell;
+  int nConstraint = pCur->nConstraint;
+  int ii;
+  int eInt;
+  RtreeSearchPoint x;
+
+  eInt = pRtree->eCoordType==RTREE_COORD_INT32;
+  while( (p = rtreeSearchPointFirst(pCur))!=0 && p->iLevel>0 ){
+    u8 *pCellData;
+    pNode = rtreeNodeOfFirstSearchPoint(pCur, &rc);
+    if( rc ) return rc;
+    nCell = NCELL(pNode);
+    assert( nCell<200 );
+    pCellData = pNode->zData + (4+pRtree->nBytesPerCell*p->iCell);
+    while( p->iCell<nCell ){
+      sqlite3_rtree_dbl rScore = (sqlite3_rtree_dbl)-1;
+      eWithin = FULLY_WITHIN;
+      for(ii=0; ii<nConstraint; ii++){
+        RtreeConstraint *pConstraint = pCur->aConstraint + ii;
+        if( pConstraint->op>=RTREE_MATCH ){
+          rc = rtreeCallbackConstraint(pConstraint, eInt, pCellData, p,
+                                       &rScore, &eWithin);
+          if( rc ) return rc;
+        }else if( p->iLevel==1 ){
+          rtreeLeafConstraint(pConstraint, eInt, pCellData, &eWithin);
+        }else{
+          rtreeNonleafConstraint(pConstraint, eInt, pCellData, &eWithin);
+        }
+        if( eWithin==NOT_WITHIN ){
+          p->iCell++;
+          pCellData += pRtree->nBytesPerCell;
+          break;
+        }
+      }
+      if( eWithin==NOT_WITHIN ) continue;
+      p->iCell++;
+      x.iLevel = p->iLevel - 1;
+      if( x.iLevel ){
+        x.id = readInt64(pCellData);
+        for(ii=0; ii<pCur->nPoint; ii++){
+          if( pCur->aPoint[ii].id==x.id ){
+            RTREE_IS_CORRUPT(pRtree);
+            return SQLITE_CORRUPT_VTAB;
+          }
+        }
+        x.iCell = 0;
+      }else{
+        x.id = p->id;
+        x.iCell = p->iCell - 1;
+      }
+      if( p->iCell>=nCell ){
+        RTREE_QUEUE_TRACE(pCur, "POP-S:");
+        rtreeSearchPointPop(pCur);
+      }
+      if( rScore<RTREE_ZERO ) rScore = RTREE_ZERO;
+      p = rtreeSearchPointNew(pCur, rScore, x.iLevel);
+      if( p==0 ) return SQLITE_NOMEM;
+      p->eWithin = (u8)eWithin;
+      p->id = x.id;
+      p->iCell = x.iCell;
+      RTREE_QUEUE_TRACE(pCur, "PUSH-S:");
+      break;
+    }
+    if( p->iCell>=nCell ){
+      RTREE_QUEUE_TRACE(pCur, "POP-Se:");
+      rtreeSearchPointPop(pCur);
+    }
+  }
+  pCur->atEOF = p==0;
+  return SQLITE_OK;
+}
+
+/* 
+** Rtree virtual table module xNext method.
+*/
+static int rtreeNext(sqlite3_vtab_cursor *pVtabCursor){
+  RtreeCursor *pCsr = (RtreeCursor *)pVtabCursor;
+  int rc = SQLITE_OK;
+
+  /* Move to the next entry that matches the configured constraints. */
+  RTREE_QUEUE_TRACE(pCsr, "POP-Nx:");
+  if( pCsr->bAuxValid ){
+    pCsr->bAuxValid = 0;
+    sqlite3_reset(pCsr->pReadAux);
+  }
+  rtreeSearchPointPop(pCsr);
+  rc = rtreeStepToLeaf(pCsr);
+  return rc;
+}
+
+/* 
+** Rtree virtual table module xRowid method.
+*/
+static int rtreeRowid(sqlite3_vtab_cursor *pVtabCursor, sqlite_int64 *pRowid){
+  RtreeCursor *pCsr = (RtreeCursor *)pVtabCursor;
+  RtreeSearchPoint *p = rtreeSearchPointFirst(pCsr);
+  int rc = SQLITE_OK;
+  RtreeNode *pNode = rtreeNodeOfFirstSearchPoint(pCsr, &rc);
+  if( rc==SQLITE_OK && ALWAYS(p) ){
+    if( p->iCell>=NCELL(pNode) ){
+      rc = SQLITE_ABORT;
+    }else{
+      *pRowid = nodeGetRowid(RTREE_OF_CURSOR(pCsr), pNode, p->iCell);
+    }
+  }
+  return rc;
+}
+
+/* 
+** Rtree virtual table module xColumn method.
+*/
+static int rtreeColumn(sqlite3_vtab_cursor *cur, sqlite3_context *ctx, int i){
+  Rtree *pRtree = (Rtree *)cur->pVtab;
+  RtreeCursor *pCsr = (RtreeCursor *)cur;
+  RtreeSearchPoint *p = rtreeSearchPointFirst(pCsr);
+  RtreeCoord c;
+  int rc = SQLITE_OK;
+  RtreeNode *pNode = rtreeNodeOfFirstSearchPoint(pCsr, &rc);
+
+  if( rc ) return rc;
+  if( NEVER(p==0) ) return SQLITE_OK;
+  if( p->iCell>=NCELL(pNode) ) return SQLITE_ABORT;
+  if( i==0 ){
+    sqlite3_result_int64(ctx, nodeGetRowid(pRtree, pNode, p->iCell));
+  }else if( i<=pRtree->nDim2 ){
+    nodeGetCoord(pRtree, pNode, p->iCell, i-1, &c);
+#ifndef SQLITE_RTREE_INT_ONLY
+    if( pRtree->eCoordType==RTREE_COORD_REAL32 ){
+      sqlite3_result_double(ctx, c.f);
+    }else
+#endif
+    {
+      assert( pRtree->eCoordType==RTREE_COORD_INT32 );
+      sqlite3_result_int(ctx, c.i);
+    }
+  }else{
+    if( !pCsr->bAuxValid ){
+      if( pCsr->pReadAux==0 ){
+        rc = sqlite3_prepare_v3(pRtree->db, pRtree->zReadAuxSql, -1, 0,
+                                &pCsr->pReadAux, 0);
+        if( rc ) return rc;
+      }
+      sqlite3_bind_int64(pCsr->pReadAux, 1, 
+          nodeGetRowid(pRtree, pNode, p->iCell));
+      rc = sqlite3_step(pCsr->pReadAux);
+      if( rc==SQLITE_ROW ){
+        pCsr->bAuxValid = 1;
+      }else{
+        sqlite3_reset(pCsr->pReadAux);
+        if( rc==SQLITE_DONE ) rc = SQLITE_OK;
+        return rc;
+      }
+    }
+    sqlite3_result_value(ctx,
+         sqlite3_column_value(pCsr->pReadAux, i - pRtree->nDim2 + 1));
+  }  
+  return SQLITE_OK;
+}
+
+/* 
+** Use nodeAcquire() to obtain the leaf node containing the record with 
+** rowid iRowid. If successful, set *ppLeaf to point to the node and
+** return SQLITE_OK. If there is no such record in the table, set
+** *ppLeaf to 0 and return SQLITE_OK. If an error occurs, set *ppLeaf
+** to zero and return an SQLite error code.
+*/
+static int findLeafNode(
+  Rtree *pRtree,              /* RTree to search */
+  i64 iRowid,                 /* The rowid searching for */
+  RtreeNode **ppLeaf,         /* Write the node here */
+  sqlite3_int64 *piNode       /* Write the node-id here */
+){
+  int rc;
+  *ppLeaf = 0;
+  sqlite3_bind_int64(pRtree->pReadRowid, 1, iRowid);
+  if( sqlite3_step(pRtree->pReadRowid)==SQLITE_ROW ){
+    i64 iNode = sqlite3_column_int64(pRtree->pReadRowid, 0);
+    if( piNode ) *piNode = iNode;
+    rc = nodeAcquire(pRtree, iNode, 0, ppLeaf);
+    sqlite3_reset(pRtree->pReadRowid);
+  }else{
+    rc = sqlite3_reset(pRtree->pReadRowid);
+  }
+  return rc;
+}
+
+/*
+** This function is called to configure the RtreeConstraint object passed
+** as the second argument for a MATCH constraint. The value passed as the
+** first argument to this function is the right-hand operand to the MATCH
+** operator.
+*/
+static int deserializeGeometry(sqlite3_value *pValue, RtreeConstraint *pCons){
+  RtreeMatchArg *pBlob, *pSrc;       /* BLOB returned by geometry function */
+  sqlite3_rtree_query_info *pInfo;   /* Callback information */
+
+  pSrc = sqlite3_value_pointer(pValue, "RtreeMatchArg");
+  if( pSrc==0 ) return SQLITE_ERROR;
+  pInfo = (sqlite3_rtree_query_info*)
+                sqlite3_malloc64( sizeof(*pInfo)+pSrc->iSize );
+  if( !pInfo ) return SQLITE_NOMEM;
+  memset(pInfo, 0, sizeof(*pInfo));
+  pBlob = (RtreeMatchArg*)&pInfo[1];
+  memcpy(pBlob, pSrc, pSrc->iSize);
+  pInfo->pContext = pBlob->cb.pContext;
+  pInfo->nParam = pBlob->nParam;
+  pInfo->aParam = pBlob->aParam;
+  pInfo->apSqlParam = pBlob->apSqlParam;
+
+  if( pBlob->cb.xGeom ){
+    pCons->u.xGeom = pBlob->cb.xGeom;
+  }else{
+    pCons->op = RTREE_QUERY;
+    pCons->u.xQueryFunc = pBlob->cb.xQueryFunc;
+  }
+  pCons->pInfo = pInfo;
+  return SQLITE_OK;
+}
+
+int sqlite3IntFloatCompare(i64,double);
+
+/* 
+** Rtree virtual table module xFilter method.
+*/
+static int rtreeFilter(
+  sqlite3_vtab_cursor *pVtabCursor, 
+  int idxNum, const char *idxStr,
+  int argc, sqlite3_value **argv
+){
+  Rtree *pRtree = (Rtree *)pVtabCursor->pVtab;
+  RtreeCursor *pCsr = (RtreeCursor *)pVtabCursor;
+  RtreeNode *pRoot = 0;
+  int ii;
+  int rc = SQLITE_OK;
+  int iCell = 0;
+
+  rtreeReference(pRtree);
+
+  /* Reset the cursor to the same state as rtreeOpen() leaves it in. */
+  resetCursor(pCsr);
+
+  pCsr->iStrategy = idxNum;
+  if( idxNum==1 ){
+    /* Special case - lookup by rowid. */
+    RtreeNode *pLeaf;        /* Leaf on which the required cell resides */
+    RtreeSearchPoint *p;     /* Search point for the leaf */
+    i64 iRowid = sqlite3_value_int64(argv[0]);
+    i64 iNode = 0;
+    int eType = sqlite3_value_numeric_type(argv[0]);
+    if( eType==SQLITE_INTEGER
+     || (eType==SQLITE_FLOAT 
+         && 0==sqlite3IntFloatCompare(iRowid,sqlite3_value_double(argv[0])))
+    ){
+      rc = findLeafNode(pRtree, iRowid, &pLeaf, &iNode);
+    }else{
+      rc = SQLITE_OK;
+      pLeaf = 0;
+    }
+    if( rc==SQLITE_OK && pLeaf!=0 ){
+      p = rtreeSearchPointNew(pCsr, RTREE_ZERO, 0);
+      assert( p!=0 );  /* Always returns pCsr->sPoint */
+      pCsr->aNode[0] = pLeaf;
+      p->id = iNode;
+      p->eWithin = PARTLY_WITHIN;
+      rc = nodeRowidIndex(pRtree, pLeaf, iRowid, &iCell);
+      p->iCell = (u8)iCell;
+      RTREE_QUEUE_TRACE(pCsr, "PUSH-F1:");
+    }else{
+      pCsr->atEOF = 1;
+    }
+  }else{
+    /* Normal case - r-tree scan. Set up the RtreeCursor.aConstraint array 
+    ** with the configured constraints. 
+    */
+    rc = nodeAcquire(pRtree, 1, 0, &pRoot);
+    if( rc==SQLITE_OK && argc>0 ){
+      pCsr->aConstraint = sqlite3_malloc64(sizeof(RtreeConstraint)*argc);
+      pCsr->nConstraint = argc;
+      if( !pCsr->aConstraint ){
+        rc = SQLITE_NOMEM;
+      }else{
+        memset(pCsr->aConstraint, 0, sizeof(RtreeConstraint)*argc);
+        memset(pCsr->anQueue, 0, sizeof(u32)*(pRtree->iDepth + 1));
+        assert( (idxStr==0 && argc==0)
+                || (idxStr && (int)strlen(idxStr)==argc*2) );
+        for(ii=0; ii<argc; ii++){
+          RtreeConstraint *p = &pCsr->aConstraint[ii];
+          int eType = sqlite3_value_numeric_type(argv[ii]);
+          p->op = idxStr[ii*2];
+          p->iCoord = idxStr[ii*2+1]-'0';
+          if( p->op>=RTREE_MATCH ){
+            /* A MATCH operator. The right-hand-side must be a blob that
+            ** can be cast into an RtreeMatchArg object. One created using
+            ** an sqlite3_rtree_geometry_callback() SQL user function.
+            */
+            rc = deserializeGeometry(argv[ii], p);
+            if( rc!=SQLITE_OK ){
+              break;
+            }
+            p->pInfo->nCoord = pRtree->nDim2;
+            p->pInfo->anQueue = pCsr->anQueue;
+            p->pInfo->mxLevel = pRtree->iDepth + 1;
+          }else if( eType==SQLITE_INTEGER ){
+            sqlite3_int64 iVal = sqlite3_value_int64(argv[ii]);
+#ifdef SQLITE_RTREE_INT_ONLY
+            p->u.rValue = iVal;
+#else
+            p->u.rValue = (double)iVal;
+            if( iVal>=((sqlite3_int64)1)<<48
+             || iVal<=-(((sqlite3_int64)1)<<48)
+            ){
+              if( p->op==RTREE_LT ) p->op = RTREE_LE;
+              if( p->op==RTREE_GT ) p->op = RTREE_GE;
+            }
+#endif
+          }else if( eType==SQLITE_FLOAT ){
+#ifdef SQLITE_RTREE_INT_ONLY
+            p->u.rValue = sqlite3_value_int64(argv[ii]);
+#else
+            p->u.rValue = sqlite3_value_double(argv[ii]);
+#endif
+          }else{
+            p->u.rValue = RTREE_ZERO;
+            if( eType==SQLITE_NULL ){
+              p->op = RTREE_FALSE;
+            }else if( p->op==RTREE_LT || p->op==RTREE_LE ){
+              p->op = RTREE_TRUE;
+            }else{
+              p->op = RTREE_FALSE;
+            }
+          }
+        }
+      }
+    }
+    if( rc==SQLITE_OK ){
+      RtreeSearchPoint *pNew;
+      assert( pCsr->bPoint==0 );  /* Due to the resetCursor() call above */
+      pNew = rtreeSearchPointNew(pCsr, RTREE_ZERO, (u8)(pRtree->iDepth+1));
+      if( NEVER(pNew==0) ){       /* Because pCsr->bPoint was FALSE */
+        return SQLITE_NOMEM;
+      }
+      pNew->id = 1;
+      pNew->iCell = 0;
+      pNew->eWithin = PARTLY_WITHIN;
+      assert( pCsr->bPoint==1 );
+      pCsr->aNode[0] = pRoot;
+      pRoot = 0;
+      RTREE_QUEUE_TRACE(pCsr, "PUSH-Fm:");
+      rc = rtreeStepToLeaf(pCsr);
+    }
+  }
+
+  nodeRelease(pRtree, pRoot);
+  rtreeRelease(pRtree);
+  return rc;
+}
+
+/*
+** Rtree virtual table module xBestIndex method. There are three
+** table scan strategies to choose from (in order from most to 
+** least desirable):
+**
+**   idxNum     idxStr        Strategy
+**   ------------------------------------------------
+**     1        Unused        Direct lookup by rowid.
+**     2        See below     R-tree query or full-table scan.
+**   ------------------------------------------------
+**
+** If strategy 1 is used, then idxStr is not meaningful. If strategy
+** 2 is used, idxStr is formatted to contain 2 bytes for each 
+** constraint used. The first two bytes of idxStr correspond to 
+** the constraint in sqlite3_index_info.aConstraintUsage[] with
+** (argvIndex==1) etc.
+**
+** The first of each pair of bytes in idxStr identifies the constraint
+** operator as follows:
+**
+**   Operator    Byte Value
+**   ----------------------
+**      =        0x41 ('A')
+**     <=        0x42 ('B')
+**      <        0x43 ('C')
+**     >=        0x44 ('D')
+**      >        0x45 ('E')
+**   MATCH       0x46 ('F')
+**   ----------------------
+**
+** The second of each pair of bytes identifies the coordinate column
+** to which the constraint applies. The leftmost coordinate column
+** is 'a', the second from the left 'b' etc.
+*/
+static int rtreeBestIndex(sqlite3_vtab *tab, sqlite3_index_info *pIdxInfo){
+  Rtree *pRtree = (Rtree*)tab;
+  int rc = SQLITE_OK;
+  int ii;
+  int bMatch = 0;                 /* True if there exists a MATCH constraint */
+  i64 nRow;                       /* Estimated rows returned by this scan */
+
+  int iIdx = 0;
+  char zIdxStr[RTREE_MAX_DIMENSIONS*8+1];
+  memset(zIdxStr, 0, sizeof(zIdxStr));
+
+  /* Check if there exists a MATCH constraint - even an unusable one. If there
+  ** is, do not consider the lookup-by-rowid plan as using such a plan would
+  ** require the VDBE to evaluate the MATCH constraint, which is not currently
+  ** possible. */
+  for(ii=0; ii<pIdxInfo->nConstraint; ii++){
+    if( pIdxInfo->aConstraint[ii].op==SQLITE_INDEX_CONSTRAINT_MATCH ){
+      bMatch = 1;
+    }
+  }
+
+  assert( pIdxInfo->idxStr==0 );
+  for(ii=0; ii<pIdxInfo->nConstraint && iIdx<(int)(sizeof(zIdxStr)-1); ii++){
+    struct sqlite3_index_constraint *p = &pIdxInfo->aConstraint[ii];
+
+    if( bMatch==0 && p->usable 
+     && p->iColumn<=0 && p->op==SQLITE_INDEX_CONSTRAINT_EQ 
+    ){
+      /* We have an equality constraint on the rowid. Use strategy 1. */
+      int jj;
+      for(jj=0; jj<ii; jj++){
+        pIdxInfo->aConstraintUsage[jj].argvIndex = 0;
+        pIdxInfo->aConstraintUsage[jj].omit = 0;
+      }
+      pIdxInfo->idxNum = 1;
+      pIdxInfo->aConstraintUsage[ii].argvIndex = 1;
+      pIdxInfo->aConstraintUsage[jj].omit = 1;
+
+      /* This strategy involves a two rowid lookups on an B-Tree structures
+      ** and then a linear search of an R-Tree node. This should be 
+      ** considered almost as quick as a direct rowid lookup (for which 
+      ** sqlite uses an internal cost of 0.0). It is expected to return
+      ** a single row.
+      */ 
+      pIdxInfo->estimatedCost = 30.0;
+      pIdxInfo->estimatedRows = 1;
+      pIdxInfo->idxFlags = SQLITE_INDEX_SCAN_UNIQUE;
+      return SQLITE_OK;
+    }
+
+    if( p->usable
+    && ((p->iColumn>0 && p->iColumn<=pRtree->nDim2)
+        || p->op==SQLITE_INDEX_CONSTRAINT_MATCH)
+    ){
+      u8 op;
+      u8 doOmit = 1;
+      switch( p->op ){
+        case SQLITE_INDEX_CONSTRAINT_EQ:    op = RTREE_EQ;    doOmit = 0; break;
+        case SQLITE_INDEX_CONSTRAINT_GT:    op = RTREE_GT;    doOmit = 0; break;
+        case SQLITE_INDEX_CONSTRAINT_LE:    op = RTREE_LE;    break;
+        case SQLITE_INDEX_CONSTRAINT_LT:    op = RTREE_LT;    doOmit = 0; break;
+        case SQLITE_INDEX_CONSTRAINT_GE:    op = RTREE_GE;    break;
+        case SQLITE_INDEX_CONSTRAINT_MATCH: op = RTREE_MATCH; break;
+        default:                            op = 0;           break;
+      }
+      if( op ){
+        zIdxStr[iIdx++] = op;
+        zIdxStr[iIdx++] = (char)(p->iColumn - 1 + '0');
+        pIdxInfo->aConstraintUsage[ii].argvIndex = (iIdx/2);
+        pIdxInfo->aConstraintUsage[ii].omit = doOmit;
+      }
+    }
+  }
+
+  pIdxInfo->idxNum = 2;
+  pIdxInfo->needToFreeIdxStr = 1;
+  if( iIdx>0 ){
+    pIdxInfo->idxStr = sqlite3_malloc( iIdx+1 );
+    if( pIdxInfo->idxStr==0 ){
+      return SQLITE_NOMEM;
+    }
+    memcpy(pIdxInfo->idxStr, zIdxStr, iIdx+1);
+  }
+
+  nRow = pRtree->nRowEst >> (iIdx/2);
+  pIdxInfo->estimatedCost = (double)6.0 * (double)nRow;
+  pIdxInfo->estimatedRows = nRow;
+
+  return rc;
+}
+
+/*
+** Return the N-dimensional volumn of the cell stored in *p.
+*/
+static RtreeDValue cellArea(Rtree *pRtree, RtreeCell *p){
+  RtreeDValue area = (RtreeDValue)1;
+  assert( pRtree->nDim>=1 && pRtree->nDim<=5 );
+#ifndef SQLITE_RTREE_INT_ONLY
+  if( pRtree->eCoordType==RTREE_COORD_REAL32 ){
+    switch( pRtree->nDim ){
+      case 5:  area  = p->aCoord[9].f - p->aCoord[8].f;
+      case 4:  area *= p->aCoord[7].f - p->aCoord[6].f;
+      case 3:  area *= p->aCoord[5].f - p->aCoord[4].f;
+      case 2:  area *= p->aCoord[3].f - p->aCoord[2].f;
+      default: area *= p->aCoord[1].f - p->aCoord[0].f;
+    }
+  }else
+#endif
+  {
+    switch( pRtree->nDim ){
+      case 5:  area  = (i64)p->aCoord[9].i - (i64)p->aCoord[8].i;
+      case 4:  area *= (i64)p->aCoord[7].i - (i64)p->aCoord[6].i;
+      case 3:  area *= (i64)p->aCoord[5].i - (i64)p->aCoord[4].i;
+      case 2:  area *= (i64)p->aCoord[3].i - (i64)p->aCoord[2].i;
+      default: area *= (i64)p->aCoord[1].i - (i64)p->aCoord[0].i;
+    }
+  }
+  return area;
+}
+
+/*
+** Return the margin length of cell p. The margin length is the sum
+** of the objects size in each dimension.
+*/
+static RtreeDValue cellMargin(Rtree *pRtree, RtreeCell *p){
+  RtreeDValue margin = 0;
+  int ii = pRtree->nDim2 - 2;
+  do{
+    margin += (DCOORD(p->aCoord[ii+1]) - DCOORD(p->aCoord[ii]));
+    ii -= 2;
+  }while( ii>=0 );
+  return margin;
+}
+
+/*
+** Store the union of cells p1 and p2 in p1.
+*/
+static void cellUnion(Rtree *pRtree, RtreeCell *p1, RtreeCell *p2){
+  int ii = 0;
+  if( pRtree->eCoordType==RTREE_COORD_REAL32 ){
+    do{
+      p1->aCoord[ii].f = MIN(p1->aCoord[ii].f, p2->aCoord[ii].f);
+      p1->aCoord[ii+1].f = MAX(p1->aCoord[ii+1].f, p2->aCoord[ii+1].f);
+      ii += 2;
+    }while( ii<pRtree->nDim2 );
+  }else{
+    do{
+      p1->aCoord[ii].i = MIN(p1->aCoord[ii].i, p2->aCoord[ii].i);
+      p1->aCoord[ii+1].i = MAX(p1->aCoord[ii+1].i, p2->aCoord[ii+1].i);
+      ii += 2;
+    }while( ii<pRtree->nDim2 );
+  }
+}
+
+/*
+** Return true if the area covered by p2 is a subset of the area covered
+** by p1. False otherwise.
+*/
+static int cellContains(Rtree *pRtree, RtreeCell *p1, RtreeCell *p2){
+  int ii;
+  if( pRtree->eCoordType==RTREE_COORD_INT32 ){
+    for(ii=0; ii<pRtree->nDim2; ii+=2){
+      RtreeCoord *a1 = &p1->aCoord[ii];
+      RtreeCoord *a2 = &p2->aCoord[ii];
+      if( a2[0].i<a1[0].i || a2[1].i>a1[1].i ) return 0;
+    }
+  }else{
+    for(ii=0; ii<pRtree->nDim2; ii+=2){
+      RtreeCoord *a1 = &p1->aCoord[ii];
+      RtreeCoord *a2 = &p2->aCoord[ii];
+      if( a2[0].f<a1[0].f || a2[1].f>a1[1].f ) return 0;
+    }
+  }
+  return 1;
+}
+
+static RtreeDValue cellOverlap(
+  Rtree *pRtree, 
+  RtreeCell *p, 
+  RtreeCell *aCell, 
+  int nCell
+){
+  int ii;
+  RtreeDValue overlap = RTREE_ZERO;
+  for(ii=0; ii<nCell; ii++){
+    int jj;
+    RtreeDValue o = (RtreeDValue)1;
+    for(jj=0; jj<pRtree->nDim2; jj+=2){
+      RtreeDValue x1, x2;
+      x1 = MAX(DCOORD(p->aCoord[jj]), DCOORD(aCell[ii].aCoord[jj]));
+      x2 = MIN(DCOORD(p->aCoord[jj+1]), DCOORD(aCell[ii].aCoord[jj+1]));
+      if( x2<x1 ){
+        o = (RtreeDValue)0;
+        break;
+      }else{
+        o = o * (x2-x1);
+      }
+    }
+    overlap += o;
+  }
+  return overlap;
+}
+
+
+/*
+** This function implements the ChooseLeaf algorithm from Gutman[84].
+** ChooseSubTree in r*tree terminology.
+*/
+static int ChooseLeaf(
+  Rtree *pRtree,               /* Rtree table */
+  RtreeCell *pCell,            /* Cell to insert into rtree */
+  int iHeight,                 /* Height of sub-tree rooted at pCell */
+  RtreeNode **ppLeaf           /* OUT: Selected leaf page */
+){
+  int rc;
+  int ii;
+  RtreeNode *pNode = 0;
+  rc = nodeAcquire(pRtree, 1, 0, &pNode);
+
+  for(ii=0; rc==SQLITE_OK && ii<(pRtree->iDepth-iHeight); ii++){
+    int iCell;
+    sqlite3_int64 iBest = 0;
+    int bFound = 0;
+    RtreeDValue fMinGrowth = RTREE_ZERO;
+    RtreeDValue fMinArea = RTREE_ZERO;
+    int nCell = NCELL(pNode);
+    RtreeNode *pChild = 0;
+
+    /* First check to see if there is are any cells in pNode that completely
+    ** contains pCell.  If two or more cells in pNode completely contain pCell
+    ** then pick the smallest.
+    */
+    for(iCell=0; iCell<nCell; iCell++){
+      RtreeCell cell;
+      nodeGetCell(pRtree, pNode, iCell, &cell);
+      if( cellContains(pRtree, &cell, pCell) ){
+        RtreeDValue area = cellArea(pRtree, &cell);
+        if( bFound==0 || area<fMinArea ){
+          iBest = cell.iRowid;
+          fMinArea = area;
+          bFound = 1;
+        }
+      }
+    }
+    if( !bFound ){
+      /* No cells of pNode will completely contain pCell.  So pick the
+      ** cell of pNode that grows by the least amount when pCell is added.
+      ** Break ties by selecting the smaller cell.
+      */
+      for(iCell=0; iCell<nCell; iCell++){
+        RtreeCell cell;
+        RtreeDValue growth;
+        RtreeDValue area;
+        nodeGetCell(pRtree, pNode, iCell, &cell);
+        area = cellArea(pRtree, &cell);
+        cellUnion(pRtree, &cell, pCell);
+        growth = cellArea(pRtree, &cell)-area;
+        if( iCell==0
+         || growth<fMinGrowth
+         || (growth==fMinGrowth && area<fMinArea)
+        ){
+          fMinGrowth = growth;
+          fMinArea = area;
+          iBest = cell.iRowid;
+        }
+      }
+    }
+
+    rc = nodeAcquire(pRtree, iBest, pNode, &pChild);
+    nodeRelease(pRtree, pNode);
+    pNode = pChild;
+  }
+
+  *ppLeaf = pNode;
+  return rc;
+}
+
+/*
+** A cell with the same content as pCell has just been inserted into
+** the node pNode. This function updates the bounding box cells in
+** all ancestor elements.
+*/
+static int AdjustTree(
+  Rtree *pRtree,                    /* Rtree table */
+  RtreeNode *pNode,                 /* Adjust ancestry of this node. */
+  RtreeCell *pCell                  /* This cell was just inserted */
+){
+  RtreeNode *p = pNode;
+  int cnt = 0;
+  int rc;
+  while( p->pParent ){
+    RtreeNode *pParent = p->pParent;
+    RtreeCell cell;
+    int iCell;
+
+    cnt++;
+    if( NEVER(cnt>100) ){
+      RTREE_IS_CORRUPT(pRtree);
+      return SQLITE_CORRUPT_VTAB;
+    }
+    rc = nodeParentIndex(pRtree, p, &iCell);
+    if( NEVER(rc!=SQLITE_OK) ){
+      RTREE_IS_CORRUPT(pRtree);
+      return SQLITE_CORRUPT_VTAB;
+    }
+
+    nodeGetCell(pRtree, pParent, iCell, &cell);
+    if( !cellContains(pRtree, &cell, pCell) ){
+      cellUnion(pRtree, &cell, pCell);
+      nodeOverwriteCell(pRtree, pParent, &cell, iCell);
+    }
+ 
+    p = pParent;
+  }
+  return SQLITE_OK;
+}
+
+/*
+** Write mapping (iRowid->iNode) to the <rtree>_rowid table.
+*/
+static int rowidWrite(Rtree *pRtree, sqlite3_int64 iRowid, sqlite3_int64 iNode){
+  sqlite3_bind_int64(pRtree->pWriteRowid, 1, iRowid);
+  sqlite3_bind_int64(pRtree->pWriteRowid, 2, iNode);
+  sqlite3_step(pRtree->pWriteRowid);
+  return sqlite3_reset(pRtree->pWriteRowid);
+}
+
+/*
+** Write mapping (iNode->iPar) to the <rtree>_parent table.
+*/
+static int parentWrite(Rtree *pRtree, sqlite3_int64 iNode, sqlite3_int64 iPar){
+  sqlite3_bind_int64(pRtree->pWriteParent, 1, iNode);
+  sqlite3_bind_int64(pRtree->pWriteParent, 2, iPar);
+  sqlite3_step(pRtree->pWriteParent);
+  return sqlite3_reset(pRtree->pWriteParent);
+}
+
+static int rtreeInsertCell(Rtree *, RtreeNode *, RtreeCell *, int);
+
+
+
+/*
+** Arguments aIdx, aCell and aSpare all point to arrays of size
+** nIdx. The aIdx array contains the set of integers from 0 to 
+** (nIdx-1) in no particular order. This function sorts the values
+** in aIdx according to dimension iDim of the cells in aCell. The
+** minimum value of dimension iDim is considered first, the
+** maximum used to break ties.
+**
+** The aSpare array is used as temporary working space by the
+** sorting algorithm.
+*/
+static void SortByDimension(
+  Rtree *pRtree,
+  int *aIdx, 
+  int nIdx, 
+  int iDim, 
+  RtreeCell *aCell, 
+  int *aSpare
+){
+  if( nIdx>1 ){
+
+    int iLeft = 0;
+    int iRight = 0;
+
+    int nLeft = nIdx/2;
+    int nRight = nIdx-nLeft;
+    int *aLeft = aIdx;
+    int *aRight = &aIdx[nLeft];
+
+    SortByDimension(pRtree, aLeft, nLeft, iDim, aCell, aSpare);
+    SortByDimension(pRtree, aRight, nRight, iDim, aCell, aSpare);
+
+    memcpy(aSpare, aLeft, sizeof(int)*nLeft);
+    aLeft = aSpare;
+    while( iLeft<nLeft || iRight<nRight ){
+      RtreeDValue xleft1 = DCOORD(aCell[aLeft[iLeft]].aCoord[iDim*2]);
+      RtreeDValue xleft2 = DCOORD(aCell[aLeft[iLeft]].aCoord[iDim*2+1]);
+      RtreeDValue xright1 = DCOORD(aCell[aRight[iRight]].aCoord[iDim*2]);
+      RtreeDValue xright2 = DCOORD(aCell[aRight[iRight]].aCoord[iDim*2+1]);
+      if( (iLeft!=nLeft) && ((iRight==nRight)
+       || (xleft1<xright1)
+       || (xleft1==xright1 && xleft2<xright2)
+      )){
+        aIdx[iLeft+iRight] = aLeft[iLeft];
+        iLeft++;
+      }else{
+        aIdx[iLeft+iRight] = aRight[iRight];
+        iRight++;
+      }
+    }
+
+#if 0
+    /* Check that the sort worked */
+    {
+      int jj;
+      for(jj=1; jj<nIdx; jj++){
+        RtreeDValue xleft1 = aCell[aIdx[jj-1]].aCoord[iDim*2];
+        RtreeDValue xleft2 = aCell[aIdx[jj-1]].aCoord[iDim*2+1];
+        RtreeDValue xright1 = aCell[aIdx[jj]].aCoord[iDim*2];
+        RtreeDValue xright2 = aCell[aIdx[jj]].aCoord[iDim*2+1];
+        assert( xleft1<=xright1 && (xleft1<xright1 || xleft2<=xright2) );
+      }
+    }
+#endif
+  }
+}
+
+/*
+** Implementation of the R*-tree variant of SplitNode from Beckman[1990].
+*/
+static int splitNodeStartree(
+  Rtree *pRtree,
+  RtreeCell *aCell,
+  int nCell,
+  RtreeNode *pLeft,
+  RtreeNode *pRight,
+  RtreeCell *pBboxLeft,
+  RtreeCell *pBboxRight
+){
+  int **aaSorted;
+  int *aSpare;
+  int ii;
+
+  int iBestDim = 0;
+  int iBestSplit = 0;
+  RtreeDValue fBestMargin = RTREE_ZERO;
+
+  sqlite3_int64 nByte = (pRtree->nDim+1)*(sizeof(int*)+nCell*sizeof(int));
+
+  aaSorted = (int **)sqlite3_malloc64(nByte);
+  if( !aaSorted ){
+    return SQLITE_NOMEM;
+  }
+
+  aSpare = &((int *)&aaSorted[pRtree->nDim])[pRtree->nDim*nCell];
+  memset(aaSorted, 0, nByte);
+  for(ii=0; ii<pRtree->nDim; ii++){
+    int jj;
+    aaSorted[ii] = &((int *)&aaSorted[pRtree->nDim])[ii*nCell];
+    for(jj=0; jj<nCell; jj++){
+      aaSorted[ii][jj] = jj;
+    }
+    SortByDimension(pRtree, aaSorted[ii], nCell, ii, aCell, aSpare);
+  }
+
+  for(ii=0; ii<pRtree->nDim; ii++){
+    RtreeDValue margin = RTREE_ZERO;
+    RtreeDValue fBestOverlap = RTREE_ZERO;
+    RtreeDValue fBestArea = RTREE_ZERO;
+    int iBestLeft = 0;
+    int nLeft;
+
+    for(
+      nLeft=RTREE_MINCELLS(pRtree); 
+      nLeft<=(nCell-RTREE_MINCELLS(pRtree)); 
+      nLeft++
+    ){
+      RtreeCell left;
+      RtreeCell right;
+      int kk;
+      RtreeDValue overlap;
+      RtreeDValue area;
+
+      memcpy(&left, &aCell[aaSorted[ii][0]], sizeof(RtreeCell));
+      memcpy(&right, &aCell[aaSorted[ii][nCell-1]], sizeof(RtreeCell));
+      for(kk=1; kk<(nCell-1); kk++){
+        if( kk<nLeft ){
+          cellUnion(pRtree, &left, &aCell[aaSorted[ii][kk]]);
+        }else{
+          cellUnion(pRtree, &right, &aCell[aaSorted[ii][kk]]);
+        }
+      }
+      margin += cellMargin(pRtree, &left);
+      margin += cellMargin(pRtree, &right);
+      overlap = cellOverlap(pRtree, &left, &right, 1);
+      area = cellArea(pRtree, &left) + cellArea(pRtree, &right);
+      if( (nLeft==RTREE_MINCELLS(pRtree))
+       || (overlap<fBestOverlap)
+       || (overlap==fBestOverlap && area<fBestArea)
+      ){
+        iBestLeft = nLeft;
+        fBestOverlap = overlap;
+        fBestArea = area;
+      }
+    }
+
+    if( ii==0 || margin<fBestMargin ){
+      iBestDim = ii;
+      fBestMargin = margin;
+      iBestSplit = iBestLeft;
+    }
+  }
+
+  memcpy(pBboxLeft, &aCell[aaSorted[iBestDim][0]], sizeof(RtreeCell));
+  memcpy(pBboxRight, &aCell[aaSorted[iBestDim][iBestSplit]], sizeof(RtreeCell));
+  for(ii=0; ii<nCell; ii++){
+    RtreeNode *pTarget = (ii<iBestSplit)?pLeft:pRight;
+    RtreeCell *pBbox = (ii<iBestSplit)?pBboxLeft:pBboxRight;
+    RtreeCell *pCell = &aCell[aaSorted[iBestDim][ii]];
+    nodeInsertCell(pRtree, pTarget, pCell);
+    cellUnion(pRtree, pBbox, pCell);
+  }
+
+  sqlite3_free(aaSorted);
+  return SQLITE_OK;
+}
+
+
+static int updateMapping(
+  Rtree *pRtree, 
+  i64 iRowid, 
+  RtreeNode *pNode, 
+  int iHeight
+){
+  int (*xSetMapping)(Rtree *, sqlite3_int64, sqlite3_int64);
+  xSetMapping = ((iHeight==0)?rowidWrite:parentWrite);
+  if( iHeight>0 ){
+    RtreeNode *pChild = nodeHashLookup(pRtree, iRowid);
+    RtreeNode *p;
+    for(p=pNode; p; p=p->pParent){
+      if( p==pChild ) return SQLITE_CORRUPT_VTAB;
+    }
+    if( pChild ){
+      nodeRelease(pRtree, pChild->pParent);
+      nodeReference(pNode);
+      pChild->pParent = pNode;
+    }
+  }
+  if( NEVER(pNode==0) ) return SQLITE_ERROR;
+  return xSetMapping(pRtree, iRowid, pNode->iNode);
+}
+
+static int SplitNode(
+  Rtree *pRtree,
+  RtreeNode *pNode,
+  RtreeCell *pCell,
+  int iHeight
+){
+  int i;
+  int newCellIsRight = 0;
+
+  int rc = SQLITE_OK;
+  int nCell = NCELL(pNode);
+  RtreeCell *aCell;
+  int *aiUsed;
+
+  RtreeNode *pLeft = 0;
+  RtreeNode *pRight = 0;
+
+  RtreeCell leftbbox;
+  RtreeCell rightbbox;
+
+  /* Allocate an array and populate it with a copy of pCell and 
+  ** all cells from node pLeft. Then zero the original node.
+  */
+  aCell = sqlite3_malloc64((sizeof(RtreeCell)+sizeof(int))*(nCell+1));
+  if( !aCell ){
+    rc = SQLITE_NOMEM;
+    goto splitnode_out;
+  }
+  aiUsed = (int *)&aCell[nCell+1];
+  memset(aiUsed, 0, sizeof(int)*(nCell+1));
+  for(i=0; i<nCell; i++){
+    nodeGetCell(pRtree, pNode, i, &aCell[i]);
+  }
+  nodeZero(pRtree, pNode);
+  memcpy(&aCell[nCell], pCell, sizeof(RtreeCell));
+  nCell++;
+
+  if( pNode->iNode==1 ){
+    pRight = nodeNew(pRtree, pNode);
+    pLeft = nodeNew(pRtree, pNode);
+    pRtree->iDepth++;
+    pNode->isDirty = 1;
+    writeInt16(pNode->zData, pRtree->iDepth);
+  }else{
+    pLeft = pNode;
+    pRight = nodeNew(pRtree, pLeft->pParent);
+    pLeft->nRef++;
+  }
+
+  if( !pLeft || !pRight ){
+    rc = SQLITE_NOMEM;
+    goto splitnode_out;
+  }
+
+  memset(pLeft->zData, 0, pRtree->iNodeSize);
+  memset(pRight->zData, 0, pRtree->iNodeSize);
+
+  rc = splitNodeStartree(pRtree, aCell, nCell, pLeft, pRight,
+                         &leftbbox, &rightbbox);
+  if( rc!=SQLITE_OK ){
+    goto splitnode_out;
+  }
+
+  /* Ensure both child nodes have node numbers assigned to them by calling
+  ** nodeWrite(). Node pRight always needs a node number, as it was created
+  ** by nodeNew() above. But node pLeft sometimes already has a node number.
+  ** In this case avoid the all to nodeWrite().
+  */
+  if( SQLITE_OK!=(rc = nodeWrite(pRtree, pRight))
+   || (0==pLeft->iNode && SQLITE_OK!=(rc = nodeWrite(pRtree, pLeft)))
+  ){
+    goto splitnode_out;
+  }
+
+  rightbbox.iRowid = pRight->iNode;
+  leftbbox.iRowid = pLeft->iNode;
+
+  if( pNode->iNode==1 ){
+    rc = rtreeInsertCell(pRtree, pLeft->pParent, &leftbbox, iHeight+1);
+    if( rc!=SQLITE_OK ){
+      goto splitnode_out;
+    }
+  }else{
+    RtreeNode *pParent = pLeft->pParent;
+    int iCell;
+    rc = nodeParentIndex(pRtree, pLeft, &iCell);
+    if( ALWAYS(rc==SQLITE_OK) ){
+      nodeOverwriteCell(pRtree, pParent, &leftbbox, iCell);
+      rc = AdjustTree(pRtree, pParent, &leftbbox);
+      assert( rc==SQLITE_OK );
+    }
+    if( NEVER(rc!=SQLITE_OK) ){
+      goto splitnode_out;
+    }
+  }
+  if( (rc = rtreeInsertCell(pRtree, pRight->pParent, &rightbbox, iHeight+1)) ){
+    goto splitnode_out;
+  }
+
+  for(i=0; i<NCELL(pRight); i++){
+    i64 iRowid = nodeGetRowid(pRtree, pRight, i);
+    rc = updateMapping(pRtree, iRowid, pRight, iHeight);
+    if( iRowid==pCell->iRowid ){
+      newCellIsRight = 1;
+    }
+    if( rc!=SQLITE_OK ){
+      goto splitnode_out;
+    }
+  }
+  if( pNode->iNode==1 ){
+    for(i=0; i<NCELL(pLeft); i++){
+      i64 iRowid = nodeGetRowid(pRtree, pLeft, i);
+      rc = updateMapping(pRtree, iRowid, pLeft, iHeight);
+      if( rc!=SQLITE_OK ){
+        goto splitnode_out;
+      }
+    }
+  }else if( newCellIsRight==0 ){
+    rc = updateMapping(pRtree, pCell->iRowid, pLeft, iHeight);
+  }
+
+  if( rc==SQLITE_OK ){
+    rc = nodeRelease(pRtree, pRight);
+    pRight = 0;
+  }
+  if( rc==SQLITE_OK ){
+    rc = nodeRelease(pRtree, pLeft);
+    pLeft = 0;
+  }
+
+splitnode_out:
+  nodeRelease(pRtree, pRight);
+  nodeRelease(pRtree, pLeft);
+  sqlite3_free(aCell);
+  return rc;
+}
+
+/*
+** If node pLeaf is not the root of the r-tree and its pParent pointer is 
+** still NULL, load all ancestor nodes of pLeaf into memory and populate
+** the pLeaf->pParent chain all the way up to the root node.
+**
+** This operation is required when a row is deleted (or updated - an update
+** is implemented as a delete followed by an insert). SQLite provides the
+** rowid of the row to delete, which can be used to find the leaf on which
+** the entry resides (argument pLeaf). Once the leaf is located, this 
+** function is called to determine its ancestry.
+*/
+static int fixLeafParent(Rtree *pRtree, RtreeNode *pLeaf){
+  int rc = SQLITE_OK;
+  RtreeNode *pChild = pLeaf;
+  while( rc==SQLITE_OK && pChild->iNode!=1 && pChild->pParent==0 ){
+    int rc2 = SQLITE_OK;          /* sqlite3_reset() return code */
+    sqlite3_bind_int64(pRtree->pReadParent, 1, pChild->iNode);
+    rc = sqlite3_step(pRtree->pReadParent);
+    if( rc==SQLITE_ROW ){
+      RtreeNode *pTest;           /* Used to test for reference loops */
+      i64 iNode;                  /* Node number of parent node */
+
+      /* Before setting pChild->pParent, test that we are not creating a
+      ** loop of references (as we would if, say, pChild==pParent). We don't
+      ** want to do this as it leads to a memory leak when trying to delete
+      ** the referenced counted node structures.
+      */
+      iNode = sqlite3_column_int64(pRtree->pReadParent, 0);
+      for(pTest=pLeaf; pTest && pTest->iNode!=iNode; pTest=pTest->pParent);
+      if( pTest==0 ){
+        rc2 = nodeAcquire(pRtree, iNode, 0, &pChild->pParent);
+      }
+    }
+    rc = sqlite3_reset(pRtree->pReadParent);
+    if( rc==SQLITE_OK ) rc = rc2;
+    if( rc==SQLITE_OK && !pChild->pParent ){
+      RTREE_IS_CORRUPT(pRtree);
+      rc = SQLITE_CORRUPT_VTAB;
+    }
+    pChild = pChild->pParent;
+  }
+  return rc;
+}
+
+static int deleteCell(Rtree *, RtreeNode *, int, int);
+
+static int removeNode(Rtree *pRtree, RtreeNode *pNode, int iHeight){
+  int rc;
+  int rc2;
+  RtreeNode *pParent = 0;
+  int iCell;
+
+  assert( pNode->nRef==1 );
+
+  /* Remove the entry in the parent cell. */
+  rc = nodeParentIndex(pRtree, pNode, &iCell);
+  if( rc==SQLITE_OK ){
+    pParent = pNode->pParent;
+    pNode->pParent = 0;
+    rc = deleteCell(pRtree, pParent, iCell, iHeight+1);
+    testcase( rc!=SQLITE_OK );
+  }
+  rc2 = nodeRelease(pRtree, pParent);
+  if( rc==SQLITE_OK ){
+    rc = rc2;
+  }
+  if( rc!=SQLITE_OK ){
+    return rc;
+  }
+
+  /* Remove the xxx_node entry. */
+  sqlite3_bind_int64(pRtree->pDeleteNode, 1, pNode->iNode);
+  sqlite3_step(pRtree->pDeleteNode);
+  if( SQLITE_OK!=(rc = sqlite3_reset(pRtree->pDeleteNode)) ){
+    return rc;
+  }
+
+  /* Remove the xxx_parent entry. */
+  sqlite3_bind_int64(pRtree->pDeleteParent, 1, pNode->iNode);
+  sqlite3_step(pRtree->pDeleteParent);
+  if( SQLITE_OK!=(rc = sqlite3_reset(pRtree->pDeleteParent)) ){
+    return rc;
+  }
+  
+  /* Remove the node from the in-memory hash table and link it into
+  ** the Rtree.pDeleted list. Its contents will be re-inserted later on.
+  */
+  nodeHashDelete(pRtree, pNode);
+  pNode->iNode = iHeight;
+  pNode->pNext = pRtree->pDeleted;
+  pNode->nRef++;
+  pRtree->pDeleted = pNode;
+
+  return SQLITE_OK;
+}
+
+static int fixBoundingBox(Rtree *pRtree, RtreeNode *pNode){
+  RtreeNode *pParent = pNode->pParent;
+  int rc = SQLITE_OK; 
+  if( pParent ){
+    int ii; 
+    int nCell = NCELL(pNode);
+    RtreeCell box;                            /* Bounding box for pNode */
+    nodeGetCell(pRtree, pNode, 0, &box);
+    for(ii=1; ii<nCell; ii++){
+      RtreeCell cell;
+      nodeGetCell(pRtree, pNode, ii, &cell);
+      cellUnion(pRtree, &box, &cell);
+    }
+    box.iRowid = pNode->iNode;
+    rc = nodeParentIndex(pRtree, pNode, &ii);
+    if( rc==SQLITE_OK ){
+      nodeOverwriteCell(pRtree, pParent, &box, ii);
+      rc = fixBoundingBox(pRtree, pParent);
+    }
+  }
+  return rc;
+}
+
+/*
+** Delete the cell at index iCell of node pNode. After removing the
+** cell, adjust the r-tree data structure if required.
+*/
+static int deleteCell(Rtree *pRtree, RtreeNode *pNode, int iCell, int iHeight){
+  RtreeNode *pParent;
+  int rc;
+
+  if( SQLITE_OK!=(rc = fixLeafParent(pRtree, pNode)) ){
+    return rc;
+  }
+
+  /* Remove the cell from the node. This call just moves bytes around
+  ** the in-memory node image, so it cannot fail.
+  */
+  nodeDeleteCell(pRtree, pNode, iCell);
+
+  /* If the node is not the tree root and now has less than the minimum
+  ** number of cells, remove it from the tree. Otherwise, update the
+  ** cell in the parent node so that it tightly contains the updated
+  ** node.
+  */
+  pParent = pNode->pParent;
+  assert( pParent || pNode->iNode==1 );
+  if( pParent ){
+    if( NCELL(pNode)<RTREE_MINCELLS(pRtree) ){
+      rc = removeNode(pRtree, pNode, iHeight);
+    }else{
+      rc = fixBoundingBox(pRtree, pNode);
+    }
+  }
+
+  return rc;
+}
+	
+/*
+** Insert cell pCell into node pNode. Node pNode is the head of a 
+** subtree iHeight high (leaf nodes have iHeight==0).
+*/
+static int rtreeInsertCell(
+  Rtree *pRtree,
+  RtreeNode *pNode,
+  RtreeCell *pCell,
+  int iHeight
+){
+  int rc = SQLITE_OK;
+  if( iHeight>0 ){
+    RtreeNode *pChild = nodeHashLookup(pRtree, pCell->iRowid);
+    if( pChild ){
+      nodeRelease(pRtree, pChild->pParent);
+      nodeReference(pNode);
+      pChild->pParent = pNode;
+    }
+  }
+  if( nodeInsertCell(pRtree, pNode, pCell) ){
+    rc = SplitNode(pRtree, pNode, pCell, iHeight);
+  }else{
+    rc = AdjustTree(pRtree, pNode, pCell);
+    if( ALWAYS(rc==SQLITE_OK) ){
+      if( iHeight==0 ){
+        rc = rowidWrite(pRtree, pCell->iRowid, pNode->iNode);
+      }else{
+        rc = parentWrite(pRtree, pCell->iRowid, pNode->iNode);
+      }
+    }
+  }
+  return rc;
+}
+
+static int reinsertNodeContent(Rtree *pRtree, RtreeNode *pNode){
+  int ii;
+  int rc = SQLITE_OK;
+  int nCell = NCELL(pNode);
+
+  for(ii=0; rc==SQLITE_OK && ii<nCell; ii++){
+    RtreeNode *pInsert;
+    RtreeCell cell;
+    nodeGetCell(pRtree, pNode, ii, &cell);
+
+    /* Find a node to store this cell in. pNode->iNode currently contains
+    ** the height of the sub-tree headed by the cell.
+    */
+    rc = ChooseLeaf(pRtree, &cell, (int)pNode->iNode, &pInsert);
+    if( rc==SQLITE_OK ){
+      int rc2;
+      rc = rtreeInsertCell(pRtree, pInsert, &cell, (int)pNode->iNode);
+      rc2 = nodeRelease(pRtree, pInsert);
+      if( rc==SQLITE_OK ){
+        rc = rc2;
+      }
+    }
+  }
+  return rc;
+}
+
+/*
+** Select a currently unused rowid for a new r-tree record.
+*/
+static int rtreeNewRowid(Rtree *pRtree, i64 *piRowid){
+  int rc;
+  sqlite3_bind_null(pRtree->pWriteRowid, 1);
+  sqlite3_bind_null(pRtree->pWriteRowid, 2);
+  sqlite3_step(pRtree->pWriteRowid);
+  rc = sqlite3_reset(pRtree->pWriteRowid);
+  *piRowid = sqlite3_last_insert_rowid(pRtree->db);
+  return rc;
+}
+
+/*
+** Remove the entry with rowid=iDelete from the r-tree structure.
+*/
+static int rtreeDeleteRowid(Rtree *pRtree, sqlite3_int64 iDelete){
+  int rc;                         /* Return code */
+  RtreeNode *pLeaf = 0;           /* Leaf node containing record iDelete */
+  int iCell;                      /* Index of iDelete cell in pLeaf */
+  RtreeNode *pRoot = 0;           /* Root node of rtree structure */
+
+
+  /* Obtain a reference to the root node to initialize Rtree.iDepth */
+  rc = nodeAcquire(pRtree, 1, 0, &pRoot);
+
+  /* Obtain a reference to the leaf node that contains the entry 
+  ** about to be deleted. 
+  */
+  if( rc==SQLITE_OK ){
+    rc = findLeafNode(pRtree, iDelete, &pLeaf, 0);
+  }
+
+#ifdef CORRUPT_DB
+  assert( pLeaf!=0 || rc!=SQLITE_OK || CORRUPT_DB );
+#endif
+
+  /* Delete the cell in question from the leaf node. */
+  if( rc==SQLITE_OK && pLeaf ){
+    int rc2;
+    rc = nodeRowidIndex(pRtree, pLeaf, iDelete, &iCell);
+    if( rc==SQLITE_OK ){
+      rc = deleteCell(pRtree, pLeaf, iCell, 0);
+    }
+    rc2 = nodeRelease(pRtree, pLeaf);
+    if( rc==SQLITE_OK ){
+      rc = rc2;
+    }
+  }
+
+  /* Delete the corresponding entry in the <rtree>_rowid table. */
+  if( rc==SQLITE_OK ){
+    sqlite3_bind_int64(pRtree->pDeleteRowid, 1, iDelete);
+    sqlite3_step(pRtree->pDeleteRowid);
+    rc = sqlite3_reset(pRtree->pDeleteRowid);
+  }
+
+  /* Check if the root node now has exactly one child. If so, remove
+  ** it, schedule the contents of the child for reinsertion and 
+  ** reduce the tree height by one.
+  **
+  ** This is equivalent to copying the contents of the child into
+  ** the root node (the operation that Gutman's paper says to perform 
+  ** in this scenario).
+  */
+  if( rc==SQLITE_OK && pRtree->iDepth>0 && NCELL(pRoot)==1 ){
+    int rc2;
+    RtreeNode *pChild = 0;
+    i64 iChild = nodeGetRowid(pRtree, pRoot, 0);
+    rc = nodeAcquire(pRtree, iChild, pRoot, &pChild);  /* tag-20210916a */
+    if( rc==SQLITE_OK ){
+      rc = removeNode(pRtree, pChild, pRtree->iDepth-1);
+    }
+    rc2 = nodeRelease(pRtree, pChild);
+    if( rc==SQLITE_OK ) rc = rc2;
+    if( rc==SQLITE_OK ){
+      pRtree->iDepth--;
+      writeInt16(pRoot->zData, pRtree->iDepth);
+      pRoot->isDirty = 1;
+    }
+  }
+
+  /* Re-insert the contents of any underfull nodes removed from the tree. */
+  for(pLeaf=pRtree->pDeleted; pLeaf; pLeaf=pRtree->pDeleted){
+    if( rc==SQLITE_OK ){
+      rc = reinsertNodeContent(pRtree, pLeaf);
+    }
+    pRtree->pDeleted = pLeaf->pNext;
+    pRtree->nNodeRef--;
+    sqlite3_free(pLeaf);
+  }
+
+  /* Release the reference to the root node. */
+  if( rc==SQLITE_OK ){
+    rc = nodeRelease(pRtree, pRoot);
+  }else{
+    nodeRelease(pRtree, pRoot);
+  }
+
+  return rc;
+}
+
+/*
+** Rounding constants for float->double conversion.
+*/
+#define RNDTOWARDS  (1.0 - 1.0/8388608.0)  /* Round towards zero */
+#define RNDAWAY     (1.0 + 1.0/8388608.0)  /* Round away from zero */
+
+#if !defined(SQLITE_RTREE_INT_ONLY)
+/*
+** Convert an sqlite3_value into an RtreeValue (presumably a float)
+** while taking care to round toward negative or positive, respectively.
+*/
+static RtreeValue rtreeValueDown(sqlite3_value *v){
+  double d = sqlite3_value_double(v);
+  float f = (float)d;
+  if( f>d ){
+    f = (float)(d*(d<0 ? RNDAWAY : RNDTOWARDS));
+  }
+  return f;
+}
+static RtreeValue rtreeValueUp(sqlite3_value *v){
+  double d = sqlite3_value_double(v);
+  float f = (float)d;
+  if( f<d ){
+    f = (float)(d*(d<0 ? RNDTOWARDS : RNDAWAY));
+  }
+  return f;
+}
+#endif /* !defined(SQLITE_RTREE_INT_ONLY) */
+
+/*
+** A constraint has failed while inserting a row into an rtree table. 
+** Assuming no OOM error occurs, this function sets the error message 
+** (at pRtree->base.zErrMsg) to an appropriate value and returns
+** SQLITE_CONSTRAINT.
+**
+** Parameter iCol is the index of the leftmost column involved in the
+** constraint failure. If it is 0, then the constraint that failed is
+** the unique constraint on the id column. Otherwise, it is the rtree
+** (c1<=c2) constraint on columns iCol and iCol+1 that has failed.
+**
+** If an OOM occurs, SQLITE_NOMEM is returned instead of SQLITE_CONSTRAINT.
+*/
+static int rtreeConstraintError(Rtree *pRtree, int iCol){
+  sqlite3_stmt *pStmt = 0;
+  char *zSql; 
+  int rc;
+
+  assert( iCol==0 || iCol%2 );
+  zSql = sqlite3_mprintf("SELECT * FROM %Q.%Q", pRtree->zDb, pRtree->zName);
+  if( zSql ){
+    rc = sqlite3_prepare_v2(pRtree->db, zSql, -1, &pStmt, 0);
+  }else{
+    rc = SQLITE_NOMEM;
+  }
+  sqlite3_free(zSql);
+
+  if( rc==SQLITE_OK ){
+    if( iCol==0 ){
+      const char *zCol = sqlite3_column_name(pStmt, 0);
+      pRtree->base.zErrMsg = sqlite3_mprintf(
+          "UNIQUE constraint failed: %s.%s", pRtree->zName, zCol
+      );
+    }else{
+      const char *zCol1 = sqlite3_column_name(pStmt, iCol);
+      const char *zCol2 = sqlite3_column_name(pStmt, iCol+1);
+      pRtree->base.zErrMsg = sqlite3_mprintf(
+          "rtree constraint failed: %s.(%s<=%s)", pRtree->zName, zCol1, zCol2
+      );
+    }
+  }
+
+  sqlite3_finalize(pStmt);
+  return (rc==SQLITE_OK ? SQLITE_CONSTRAINT : rc);
+}
+
+
+
+/*
+** The xUpdate method for rtree module virtual tables.
+*/
+static int rtreeUpdate(
+  sqlite3_vtab *pVtab, 
+  int nData, 
+  sqlite3_value **aData, 
+  sqlite_int64 *pRowid
+){
+  Rtree *pRtree = (Rtree *)pVtab;
+  int rc = SQLITE_OK;
+  RtreeCell cell;                 /* New cell to insert if nData>1 */
+  int bHaveRowid = 0;             /* Set to 1 after new rowid is determined */
+
+  if( pRtree->nNodeRef ){
+    /* Unable to write to the btree while another cursor is reading from it,
+    ** since the write might do a rebalance which would disrupt the read
+    ** cursor. */
+    return SQLITE_LOCKED_VTAB;
+  }
+  rtreeReference(pRtree);
+  assert(nData>=1);
+
+  memset(&cell, 0, sizeof(cell));
+
+  /* Constraint handling. A write operation on an r-tree table may return
+  ** SQLITE_CONSTRAINT for two reasons:
+  **
+  **   1. A duplicate rowid value, or
+  **   2. The supplied data violates the "x2>=x1" constraint.
+  **
+  ** In the first case, if the conflict-handling mode is REPLACE, then
+  ** the conflicting row can be removed before proceeding. In the second
+  ** case, SQLITE_CONSTRAINT must be returned regardless of the
+  ** conflict-handling mode specified by the user.
+  */
+  if( nData>1 ){
+    int ii;
+    int nn = nData - 4;
+
+    if( nn > pRtree->nDim2 ) nn = pRtree->nDim2;
+    /* Populate the cell.aCoord[] array. The first coordinate is aData[3].
+    **
+    ** NB: nData can only be less than nDim*2+3 if the rtree is mis-declared
+    ** with "column" that are interpreted as table constraints.
+    ** Example:  CREATE VIRTUAL TABLE bad USING rtree(x,y,CHECK(y>5));
+    ** This problem was discovered after years of use, so we silently ignore
+    ** these kinds of misdeclared tables to avoid breaking any legacy.
+    */
+
+#ifndef SQLITE_RTREE_INT_ONLY
+    if( pRtree->eCoordType==RTREE_COORD_REAL32 ){
+      for(ii=0; ii<nn; ii+=2){
+        cell.aCoord[ii].f = rtreeValueDown(aData[ii+3]);
+        cell.aCoord[ii+1].f = rtreeValueUp(aData[ii+4]);
+        if( cell.aCoord[ii].f>cell.aCoord[ii+1].f ){
+          rc = rtreeConstraintError(pRtree, ii+1);
+          goto constraint;
+        }
+      }
+    }else
+#endif
+    {
+      for(ii=0; ii<nn; ii+=2){
+        cell.aCoord[ii].i = sqlite3_value_int(aData[ii+3]);
+        cell.aCoord[ii+1].i = sqlite3_value_int(aData[ii+4]);
+        if( cell.aCoord[ii].i>cell.aCoord[ii+1].i ){
+          rc = rtreeConstraintError(pRtree, ii+1);
+          goto constraint;
+        }
+      }
+    }
+
+    /* If a rowid value was supplied, check if it is already present in 
+    ** the table. If so, the constraint has failed. */
+    if( sqlite3_value_type(aData[2])!=SQLITE_NULL ){
+      cell.iRowid = sqlite3_value_int64(aData[2]);
+      if( sqlite3_value_type(aData[0])==SQLITE_NULL
+       || sqlite3_value_int64(aData[0])!=cell.iRowid
+      ){
+        int steprc;
+        sqlite3_bind_int64(pRtree->pReadRowid, 1, cell.iRowid);
+        steprc = sqlite3_step(pRtree->pReadRowid);
+        rc = sqlite3_reset(pRtree->pReadRowid);
+        if( SQLITE_ROW==steprc ){
+          if( sqlite3_vtab_on_conflict(pRtree->db)==SQLITE_REPLACE ){
+            rc = rtreeDeleteRowid(pRtree, cell.iRowid);
+          }else{
+            rc = rtreeConstraintError(pRtree, 0);
+            goto constraint;
+          }
+        }
+      }
+      bHaveRowid = 1;
+    }
+  }
+
+  /* If aData[0] is not an SQL NULL value, it is the rowid of a
+  ** record to delete from the r-tree table. The following block does
+  ** just that.
+  */
+  if( sqlite3_value_type(aData[0])!=SQLITE_NULL ){
+    rc = rtreeDeleteRowid(pRtree, sqlite3_value_int64(aData[0]));
+  }
+
+  /* If the aData[] array contains more than one element, elements
+  ** (aData[2]..aData[argc-1]) contain a new record to insert into
+  ** the r-tree structure.
+  */
+  if( rc==SQLITE_OK && nData>1 ){
+    /* Insert the new record into the r-tree */
+    RtreeNode *pLeaf = 0;
+
+    /* Figure out the rowid of the new row. */
+    if( bHaveRowid==0 ){
+      rc = rtreeNewRowid(pRtree, &cell.iRowid);
+    }
+    *pRowid = cell.iRowid;
+
+    if( rc==SQLITE_OK ){
+      rc = ChooseLeaf(pRtree, &cell, 0, &pLeaf);
+    }
+    if( rc==SQLITE_OK ){
+      int rc2;
+      rc = rtreeInsertCell(pRtree, pLeaf, &cell, 0);
+      rc2 = nodeRelease(pRtree, pLeaf);
+      if( rc==SQLITE_OK ){
+        rc = rc2;
+      }
+    }
+    if( rc==SQLITE_OK && pRtree->nAux ){
+      sqlite3_stmt *pUp = pRtree->pWriteAux;
+      int jj;
+      sqlite3_bind_int64(pUp, 1, *pRowid);
+      for(jj=0; jj<pRtree->nAux; jj++){
+        sqlite3_bind_value(pUp, jj+2, aData[pRtree->nDim2+3+jj]);
+      }
+      sqlite3_step(pUp);
+      rc = sqlite3_reset(pUp);
+    }
+  }
+
+constraint:
+  rtreeRelease(pRtree);
+  return rc;
+}
+
+/*
+** Called when a transaction starts.
+*/
+static int rtreeBeginTransaction(sqlite3_vtab *pVtab){
+  Rtree *pRtree = (Rtree *)pVtab;
+  assert( pRtree->inWrTrans==0 );
+  pRtree->inWrTrans = 1;
+  return SQLITE_OK;
+}
+
+/*
+** Called when a transaction completes (either by COMMIT or ROLLBACK).
+** The sqlite3_blob object should be released at this point.
+*/
+static int rtreeEndTransaction(sqlite3_vtab *pVtab){
+  Rtree *pRtree = (Rtree *)pVtab;
+  pRtree->inWrTrans = 0;
+  nodeBlobReset(pRtree);
+  return SQLITE_OK;
+}
+static int rtreeRollback(sqlite3_vtab *pVtab){
+  return rtreeEndTransaction(pVtab);  
+}
+
+/*
+** The xRename method for rtree module virtual tables.
+*/
+static int rtreeRename(sqlite3_vtab *pVtab, const char *zNewName){
+  Rtree *pRtree = (Rtree *)pVtab;
+  int rc = SQLITE_NOMEM;
+  char *zSql = sqlite3_mprintf(
+    "ALTER TABLE %Q.'%q_node'   RENAME TO \"%w_node\";"
+    "ALTER TABLE %Q.'%q_parent' RENAME TO \"%w_parent\";"
+    "ALTER TABLE %Q.'%q_rowid'  RENAME TO \"%w_rowid\";"
+    , pRtree->zDb, pRtree->zName, zNewName 
+    , pRtree->zDb, pRtree->zName, zNewName 
+    , pRtree->zDb, pRtree->zName, zNewName
+  );
+  if( zSql ){
+    nodeBlobReset(pRtree);
+    rc = sqlite3_exec(pRtree->db, zSql, 0, 0, 0);
+    sqlite3_free(zSql);
+  }
+  return rc;
+}
+
+/*
+** The xSavepoint method.
+**
+** This module does not need to do anything to support savepoints. However,
+** it uses this hook to close any open blob handle. This is done because a 
+** DROP TABLE command - which fortunately always opens a savepoint - cannot 
+** succeed if there are any open blob handles. i.e. if the blob handle were
+** not closed here, the following would fail:
+**
+**   BEGIN;
+**     INSERT INTO rtree...
+**     DROP TABLE <tablename>;    -- Would fail with SQLITE_LOCKED
+**   COMMIT;
+*/
+static int rtreeSavepoint(sqlite3_vtab *pVtab, int iSavepoint){
+  Rtree *pRtree = (Rtree *)pVtab;
+  u8 iwt = pRtree->inWrTrans;
+  UNUSED_PARAMETER(iSavepoint);
+  pRtree->inWrTrans = 0;
+  nodeBlobReset(pRtree);
+  pRtree->inWrTrans = iwt;
+  return SQLITE_OK;
+}
+
+/*
+** This function populates the pRtree->nRowEst variable with an estimate
+** of the number of rows in the virtual table. If possible, this is based
+** on sqlite_stat1 data. Otherwise, use RTREE_DEFAULT_ROWEST.
+*/
+static int rtreeQueryStat1(sqlite3 *db, Rtree *pRtree){
+  const char *zFmt = "SELECT stat FROM %Q.sqlite_stat1 WHERE tbl = '%q_rowid'";
+  char *zSql;
+  sqlite3_stmt *p;
+  int rc;
+  i64 nRow = RTREE_MIN_ROWEST;
+
+  rc = sqlite3_table_column_metadata(
+      db, pRtree->zDb, "sqlite_stat1",0,0,0,0,0,0
+  );
+  if( rc!=SQLITE_OK ){
+    pRtree->nRowEst = RTREE_DEFAULT_ROWEST;
+    return rc==SQLITE_ERROR ? SQLITE_OK : rc;
+  }
+  zSql = sqlite3_mprintf(zFmt, pRtree->zDb, pRtree->zName);
+  if( zSql==0 ){
+    rc = SQLITE_NOMEM;
+  }else{
+    rc = sqlite3_prepare_v2(db, zSql, -1, &p, 0);
+    if( rc==SQLITE_OK ){
+      if( sqlite3_step(p)==SQLITE_ROW ) nRow = sqlite3_column_int64(p, 0);
+      rc = sqlite3_finalize(p);
+    }
+    sqlite3_free(zSql);
+  }
+  pRtree->nRowEst = MAX(nRow, RTREE_MIN_ROWEST);
+  return rc;
+}
+
+
+/*
+** Return true if zName is the extension on one of the shadow tables used
+** by this module.
+*/
+static int rtreeShadowName(const char *zName){
+  static const char *azName[] = {
+    "node", "parent", "rowid"
+  };
+  unsigned int i;
+  for(i=0; i<sizeof(azName)/sizeof(azName[0]); i++){
+    if( sqlite3_stricmp(zName, azName[i])==0 ) return 1;
+  }
+  return 0;
+}
+
+/* Forward declaration */
+static int rtreeIntegrity(sqlite3_vtab*, const char*, const char*, int, char**);
+
+static sqlite3_module rtreeModule = {
+  4,                          /* iVersion */
+  rtreeCreate,                /* xCreate - create a table */
+  rtreeConnect,               /* xConnect - connect to an existing table */
+  rtreeBestIndex,             /* xBestIndex - Determine search strategy */
+  rtreeDisconnect,            /* xDisconnect - Disconnect from a table */
+  rtreeDestroy,               /* xDestroy - Drop a table */
+  rtreeOpen,                  /* xOpen - open a cursor */
+  rtreeClose,                 /* xClose - close a cursor */
+  rtreeFilter,                /* xFilter - configure scan constraints */
+  rtreeNext,                  /* xNext - advance a cursor */
+  rtreeEof,                   /* xEof */
+  rtreeColumn,                /* xColumn - read data */
+  rtreeRowid,                 /* xRowid - read data */
+  rtreeUpdate,                /* xUpdate - write data */
+  rtreeBeginTransaction,      /* xBegin - begin transaction */
+  rtreeEndTransaction,        /* xSync - sync transaction */
+  rtreeEndTransaction,        /* xCommit - commit transaction */
+  rtreeRollback,              /* xRollback - rollback transaction */
+  0,                          /* xFindFunction - function overloading */
+  rtreeRename,                /* xRename - rename the table */
+  rtreeSavepoint,             /* xSavepoint */
+  0,                          /* xRelease */
+  0,                          /* xRollbackTo */
+  rtreeShadowName,            /* xShadowName */
+  rtreeIntegrity              /* xIntegrity */
+};
+
+static int rtreeSqlInit(
+  Rtree *pRtree, 
+  sqlite3 *db, 
+  const char *zDb, 
+  const char *zPrefix, 
+  int isCreate
+){
+  int rc = SQLITE_OK;
+
+  #define N_STATEMENT 8
+  static const char *azSql[N_STATEMENT] = {
+    /* Write the xxx_node table */
+    "INSERT OR REPLACE INTO '%q'.'%q_node' VALUES(?1, ?2)",
+    "DELETE FROM '%q'.'%q_node' WHERE nodeno = ?1",
+
+    /* Read and write the xxx_rowid table */
+    "SELECT nodeno FROM '%q'.'%q_rowid' WHERE rowid = ?1",
+    "INSERT OR REPLACE INTO '%q'.'%q_rowid' VALUES(?1, ?2)",
+    "DELETE FROM '%q'.'%q_rowid' WHERE rowid = ?1",
+
+    /* Read and write the xxx_parent table */
+    "SELECT parentnode FROM '%q'.'%q_parent' WHERE nodeno = ?1",
+    "INSERT OR REPLACE INTO '%q'.'%q_parent' VALUES(?1, ?2)",
+    "DELETE FROM '%q'.'%q_parent' WHERE nodeno = ?1"
+  };
+  sqlite3_stmt **appStmt[N_STATEMENT];
+  int i;
+  const int f = SQLITE_PREPARE_PERSISTENT|SQLITE_PREPARE_NO_VTAB;
+
+  pRtree->db = db;
+
+  if( isCreate ){
+    char *zCreate;
+    sqlite3_str *p = sqlite3_str_new(db);
+    int ii;
+    sqlite3_str_appendf(p,
+       "CREATE TABLE \"%w\".\"%w_rowid\"(rowid INTEGER PRIMARY KEY,nodeno",
+       zDb, zPrefix);
+    for(ii=0; ii<pRtree->nAux; ii++){
+      sqlite3_str_appendf(p,",a%d",ii);
+    }
+    sqlite3_str_appendf(p,
+      ");CREATE TABLE \"%w\".\"%w_node\"(nodeno INTEGER PRIMARY KEY,data);",
+      zDb, zPrefix);
+    sqlite3_str_appendf(p,
+    "CREATE TABLE \"%w\".\"%w_parent\"(nodeno INTEGER PRIMARY KEY,parentnode);",
+      zDb, zPrefix);
+    sqlite3_str_appendf(p,
+       "INSERT INTO \"%w\".\"%w_node\"VALUES(1,zeroblob(%d))",
+       zDb, zPrefix, pRtree->iNodeSize);
+    zCreate = sqlite3_str_finish(p);
+    if( !zCreate ){
+      return SQLITE_NOMEM;
+    }
+    rc = sqlite3_exec(db, zCreate, 0, 0, 0);
+    sqlite3_free(zCreate);
+    if( rc!=SQLITE_OK ){
+      return rc;
+    }
+  }
+
+  appStmt[0] = &pRtree->pWriteNode;
+  appStmt[1] = &pRtree->pDeleteNode;
+  appStmt[2] = &pRtree->pReadRowid;
+  appStmt[3] = &pRtree->pWriteRowid;
+  appStmt[4] = &pRtree->pDeleteRowid;
+  appStmt[5] = &pRtree->pReadParent;
+  appStmt[6] = &pRtree->pWriteParent;
+  appStmt[7] = &pRtree->pDeleteParent;
+
+  rc = rtreeQueryStat1(db, pRtree);
+  for(i=0; i<N_STATEMENT && rc==SQLITE_OK; i++){
+    char *zSql;
+    const char *zFormat;
+    if( i!=3 || pRtree->nAux==0 ){
+       zFormat = azSql[i];
+    }else {
+       /* An UPSERT is very slightly slower than REPLACE, but it is needed
+       ** if there are auxiliary columns */
+       zFormat = "INSERT INTO\"%w\".\"%w_rowid\"(rowid,nodeno)VALUES(?1,?2)"
+                  "ON CONFLICT(rowid)DO UPDATE SET nodeno=excluded.nodeno";
+    }
+    zSql = sqlite3_mprintf(zFormat, zDb, zPrefix);
+    if( zSql ){
+      rc = sqlite3_prepare_v3(db, zSql, -1, f, appStmt[i], 0); 
+    }else{
+      rc = SQLITE_NOMEM;
+    }
+    sqlite3_free(zSql);
+  }
+  if( pRtree->nAux && rc!=SQLITE_NOMEM ){
+    pRtree->zReadAuxSql = sqlite3_mprintf(
+       "SELECT * FROM \"%w\".\"%w_rowid\" WHERE rowid=?1",
+       zDb, zPrefix);
+    if( pRtree->zReadAuxSql==0 ){
+      rc = SQLITE_NOMEM;
+    }else{
+      sqlite3_str *p = sqlite3_str_new(db);
+      int ii;
+      char *zSql;
+      sqlite3_str_appendf(p, "UPDATE \"%w\".\"%w_rowid\"SET ", zDb, zPrefix);
+      for(ii=0; ii<pRtree->nAux; ii++){
+        if( ii ) sqlite3_str_append(p, ",", 1);
+#ifdef SQLITE_ENABLE_GEOPOLY
+        if( ii<pRtree->nAuxNotNull ){
+          sqlite3_str_appendf(p,"a%d=coalesce(?%d,a%d)",ii,ii+2,ii);
+        }else
+#endif
+        {
+          sqlite3_str_appendf(p,"a%d=?%d",ii,ii+2);
+        }
+      }
+      sqlite3_str_appendf(p, " WHERE rowid=?1");
+      zSql = sqlite3_str_finish(p);
+      if( zSql==0 ){
+        rc = SQLITE_NOMEM;
+      }else{
+        rc = sqlite3_prepare_v3(db, zSql, -1, f, &pRtree->pWriteAux, 0); 
+        sqlite3_free(zSql);
+      }
+    }
+  }
+
+  return rc;
+}
+
+/*
+** The second argument to this function contains the text of an SQL statement
+** that returns a single integer value. The statement is compiled and executed
+** using database connection db. If successful, the integer value returned
+** is written to *piVal and SQLITE_OK returned. Otherwise, an SQLite error
+** code is returned and the value of *piVal after returning is not defined.
+*/
+static int getIntFromStmt(sqlite3 *db, const char *zSql, int *piVal){
+  int rc = SQLITE_NOMEM;
+  if( zSql ){
+    sqlite3_stmt *pStmt = 0;
+    rc = sqlite3_prepare_v2(db, zSql, -1, &pStmt, 0);
+    if( rc==SQLITE_OK ){
+      if( SQLITE_ROW==sqlite3_step(pStmt) ){
+        *piVal = sqlite3_column_int(pStmt, 0);
+      }
+      rc = sqlite3_finalize(pStmt);
+    }
+  }
+  return rc;
+}
+
+/*
+** This function is called from within the xConnect() or xCreate() method to
+** determine the node-size used by the rtree table being created or connected
+** to. If successful, pRtree->iNodeSize is populated and SQLITE_OK returned.
+** Otherwise, an SQLite error code is returned.
+**
+** If this function is being called as part of an xConnect(), then the rtree
+** table already exists. In this case the node-size is determined by inspecting
+** the root node of the tree.
+**
+** Otherwise, for an xCreate(), use 64 bytes less than the database page-size. 
+** This ensures that each node is stored on a single database page. If the 
+** database page-size is so large that more than RTREE_MAXCELLS entries 
+** would fit in a single node, use a smaller node-size.
+*/
+static int getNodeSize(
+  sqlite3 *db,                    /* Database handle */
+  Rtree *pRtree,                  /* Rtree handle */
+  int isCreate,                   /* True for xCreate, false for xConnect */
+  char **pzErr                    /* OUT: Error message, if any */
+){
+  int rc;
+  char *zSql;
+  if( isCreate ){
+    int iPageSize = 0;
+    zSql = sqlite3_mprintf("PRAGMA %Q.page_size", pRtree->zDb);
+    rc = getIntFromStmt(db, zSql, &iPageSize);
+    if( rc==SQLITE_OK ){
+      pRtree->iNodeSize = iPageSize-64;
+      if( (4+pRtree->nBytesPerCell*RTREE_MAXCELLS)<pRtree->iNodeSize ){
+        pRtree->iNodeSize = 4+pRtree->nBytesPerCell*RTREE_MAXCELLS;
+      }
+    }else{
+      *pzErr = sqlite3_mprintf("%s", sqlite3_errmsg(db));
+    }
+  }else{
+    zSql = sqlite3_mprintf(
+        "SELECT length(data) FROM '%q'.'%q_node' WHERE nodeno = 1",
+        pRtree->zDb, pRtree->zName
+    );
+    rc = getIntFromStmt(db, zSql, &pRtree->iNodeSize);
+    if( rc!=SQLITE_OK ){
+      *pzErr = sqlite3_mprintf("%s", sqlite3_errmsg(db));
+    }else if( pRtree->iNodeSize<(512-64) ){
+      rc = SQLITE_CORRUPT_VTAB;
+      RTREE_IS_CORRUPT(pRtree);
+      *pzErr = sqlite3_mprintf("undersize RTree blobs in \"%q_node\"",
+                               pRtree->zName);
+    }
+  }
+
+  sqlite3_free(zSql);
+  return rc;
+}
+
+/*
+** Return the length of a token
+*/
+static int rtreeTokenLength(const char *z){
+  int dummy = 0;
+  return sqlite3GetToken((const unsigned char*)z,&dummy);
+}
+
+/* 
+** This function is the implementation of both the xConnect and xCreate
+** methods of the r-tree virtual table.
+**
+**   argv[0]   -> module name
+**   argv[1]   -> database name
+**   argv[2]   -> table name
+**   argv[...] -> column names...
+*/
+static int rtreeInit(
+  sqlite3 *db,                        /* Database connection */
+  void *pAux,                         /* One of the RTREE_COORD_* constants */
+  int argc, const char *const*argv,   /* Parameters to CREATE TABLE statement */
+  sqlite3_vtab **ppVtab,              /* OUT: New virtual table */
+  char **pzErr,                       /* OUT: Error message, if any */
+  int isCreate                        /* True for xCreate, false for xConnect */
+){
+  int rc = SQLITE_OK;
+  Rtree *pRtree;
+  int nDb;              /* Length of string argv[1] */
+  int nName;            /* Length of string argv[2] */
+  int eCoordType = (pAux ? RTREE_COORD_INT32 : RTREE_COORD_REAL32);
+  sqlite3_str *pSql;
+  char *zSql;
+  int ii = 4;
+  int iErr;
+
+  const char *aErrMsg[] = {
+    0,                                                    /* 0 */
+    "Wrong number of columns for an rtree table",         /* 1 */
+    "Too few columns for an rtree table",                 /* 2 */
+    "Too many columns for an rtree table",                /* 3 */
+    "Auxiliary rtree columns must be last"                /* 4 */
+  };
+
+  assert( RTREE_MAX_AUX_COLUMN<256 ); /* Aux columns counted by a u8 */
+  if( argc<6 || argc>RTREE_MAX_AUX_COLUMN+3 ){
+    *pzErr = sqlite3_mprintf("%s", aErrMsg[2 + (argc>=6)]);
+    return SQLITE_ERROR;
+  }
+
+  sqlite3_vtab_config(db, SQLITE_VTAB_CONSTRAINT_SUPPORT, 1);
+  sqlite3_vtab_config(db, SQLITE_VTAB_INNOCUOUS);
+
+
+  /* Allocate the sqlite3_vtab structure */
+  nDb = (int)strlen(argv[1]);
+  nName = (int)strlen(argv[2]);
+  pRtree = (Rtree *)sqlite3_malloc64(sizeof(Rtree)+nDb+nName*2+8);
+  if( !pRtree ){
+    return SQLITE_NOMEM;
+  }
+  memset(pRtree, 0, sizeof(Rtree)+nDb+nName*2+8);
+  pRtree->nBusy = 1;
+  pRtree->base.pModule = &rtreeModule;
+  pRtree->zDb = (char *)&pRtree[1];
+  pRtree->zName = &pRtree->zDb[nDb+1];
+  pRtree->zNodeName = &pRtree->zName[nName+1];
+  pRtree->eCoordType = (u8)eCoordType;
+  memcpy(pRtree->zDb, argv[1], nDb);
+  memcpy(pRtree->zName, argv[2], nName);
+  memcpy(pRtree->zNodeName, argv[2], nName);
+  memcpy(&pRtree->zNodeName[nName], "_node", 6);
+
+
+  /* Create/Connect to the underlying relational database schema. If
+  ** that is successful, call sqlite3_declare_vtab() to configure
+  ** the r-tree table schema.
+  */
+  pSql = sqlite3_str_new(db);
+  sqlite3_str_appendf(pSql, "CREATE TABLE x(%.*s INT", 
+                      rtreeTokenLength(argv[3]), argv[3]);
+  for(ii=4; ii<argc; ii++){
+    const char *zArg = argv[ii];
+    if( zArg[0]=='+' ){
+      pRtree->nAux++;
+      sqlite3_str_appendf(pSql, ",%.*s", rtreeTokenLength(zArg+1), zArg+1);
+    }else if( pRtree->nAux>0 ){
+      break;
+    }else{
+      static const char *azFormat[] = {",%.*s REAL", ",%.*s INT"};
+      pRtree->nDim2++;
+      sqlite3_str_appendf(pSql, azFormat[eCoordType],
+                          rtreeTokenLength(zArg), zArg);
+    }
+  }
+  sqlite3_str_appendf(pSql, ");");
+  zSql = sqlite3_str_finish(pSql);
+  if( !zSql ){
+    rc = SQLITE_NOMEM;
+  }else if( ii<argc ){
+    *pzErr = sqlite3_mprintf("%s", aErrMsg[4]);
+    rc = SQLITE_ERROR;
+  }else if( SQLITE_OK!=(rc = sqlite3_declare_vtab(db, zSql)) ){
+    *pzErr = sqlite3_mprintf("%s", sqlite3_errmsg(db));
+  }
+  sqlite3_free(zSql);
+  if( rc ) goto rtreeInit_fail;
+  pRtree->nDim = pRtree->nDim2/2;
+  if( pRtree->nDim<1 ){
+    iErr = 2;
+  }else if( pRtree->nDim2>RTREE_MAX_DIMENSIONS*2 ){
+    iErr = 3;
+  }else if( pRtree->nDim2 % 2 ){
+    iErr = 1;
+  }else{
+    iErr = 0;
+  }
+  if( iErr ){
+    *pzErr = sqlite3_mprintf("%s", aErrMsg[iErr]);
+    goto rtreeInit_fail;
+  }
+  pRtree->nBytesPerCell = 8 + pRtree->nDim2*4;
+
+  /* Figure out the node size to use. */
+  rc = getNodeSize(db, pRtree, isCreate, pzErr);
+  if( rc ) goto rtreeInit_fail;
+  rc = rtreeSqlInit(pRtree, db, argv[1], argv[2], isCreate);
+  if( rc ){
+    *pzErr = sqlite3_mprintf("%s", sqlite3_errmsg(db));
+    goto rtreeInit_fail;
+  }
+
+  *ppVtab = (sqlite3_vtab *)pRtree;
+  return SQLITE_OK;
+
+rtreeInit_fail:
+  if( rc==SQLITE_OK ) rc = SQLITE_ERROR;
+  assert( *ppVtab==0 );
+  assert( pRtree->nBusy==1 );
+  rtreeRelease(pRtree);
+  return rc;
+}
+
+
+/*
+** Implementation of a scalar function that decodes r-tree nodes to
+** human readable strings. This can be used for debugging and analysis.
+**
+** The scalar function takes two arguments: (1) the number of dimensions
+** to the rtree (between 1 and 5, inclusive) and (2) a blob of data containing
+** an r-tree node.  For a two-dimensional r-tree structure called "rt", to
+** deserialize all nodes, a statement like:
+**
+**   SELECT rtreenode(2, data) FROM rt_node;
+**
+** The human readable string takes the form of a Tcl list with one
+** entry for each cell in the r-tree node. Each entry is itself a
+** list, containing the 8-byte rowid/pageno followed by the 
+** <num-dimension>*2 coordinates.
+*/
+static void rtreenode(sqlite3_context *ctx, int nArg, sqlite3_value **apArg){
+  RtreeNode node;
+  Rtree tree;
+  int ii;
+  int nData;
+  int errCode;
+  sqlite3_str *pOut;
+
+  UNUSED_PARAMETER(nArg);
+  memset(&node, 0, sizeof(RtreeNode));
+  memset(&tree, 0, sizeof(Rtree));
+  tree.nDim = (u8)sqlite3_value_int(apArg[0]);
+  if( tree.nDim<1 || tree.nDim>5 ) return;
+  tree.nDim2 = tree.nDim*2;
+  tree.nBytesPerCell = 8 + 8 * tree.nDim;
+  node.zData = (u8 *)sqlite3_value_blob(apArg[1]);
+  if( node.zData==0 ) return;
+  nData = sqlite3_value_bytes(apArg[1]);
+  if( nData<4 ) return;
+  if( nData<NCELL(&node)*tree.nBytesPerCell ) return;
+
+  pOut = sqlite3_str_new(0);
+  for(ii=0; ii<NCELL(&node); ii++){
+    RtreeCell cell;
+    int jj;
+
+    nodeGetCell(&tree, &node, ii, &cell);
+    if( ii>0 ) sqlite3_str_append(pOut, " ", 1);
+    sqlite3_str_appendf(pOut, "{%lld", cell.iRowid);
+    for(jj=0; jj<tree.nDim2; jj++){
+#ifndef SQLITE_RTREE_INT_ONLY
+      sqlite3_str_appendf(pOut, " %g", (double)cell.aCoord[jj].f);
+#else
+      sqlite3_str_appendf(pOut, " %d", cell.aCoord[jj].i);
+#endif
+    }
+    sqlite3_str_append(pOut, "}", 1);
+  }
+  errCode = sqlite3_str_errcode(pOut);
+  sqlite3_result_error_code(ctx, errCode);
+  sqlite3_result_text(ctx, sqlite3_str_finish(pOut), -1, sqlite3_free);
+}
+
+/* This routine implements an SQL function that returns the "depth" parameter
+** from the front of a blob that is an r-tree node.  For example:
+**
+**     SELECT rtreedepth(data) FROM rt_node WHERE nodeno=1;
+**
+** The depth value is 0 for all nodes other than the root node, and the root
+** node always has nodeno=1, so the example above is the primary use for this
+** routine.  This routine is intended for testing and analysis only.
+*/
+static void rtreedepth(sqlite3_context *ctx, int nArg, sqlite3_value **apArg){
+  UNUSED_PARAMETER(nArg);
+  if( sqlite3_value_type(apArg[0])!=SQLITE_BLOB 
+   || sqlite3_value_bytes(apArg[0])<2
+
+  ){
+    sqlite3_result_error(ctx, "Invalid argument to rtreedepth()", -1); 
+  }else{
+    u8 *zBlob = (u8 *)sqlite3_value_blob(apArg[0]);
+    if( zBlob ){
+      sqlite3_result_int(ctx, readInt16(zBlob));
+    }else{
+      sqlite3_result_error_nomem(ctx);
+    }
+  }
+}
+
+/*
+** Context object passed between the various routines that make up the
+** implementation of integrity-check function rtreecheck().
+*/
+typedef struct RtreeCheck RtreeCheck;
+struct RtreeCheck {
+  sqlite3 *db;                    /* Database handle */
+  const char *zDb;                /* Database containing rtree table */
+  const char *zTab;               /* Name of rtree table */
+  int bInt;                       /* True for rtree_i32 table */
+  int nDim;                       /* Number of dimensions for this rtree tbl */
+  sqlite3_stmt *pGetNode;         /* Statement used to retrieve nodes */
+  sqlite3_stmt *aCheckMapping[2]; /* Statements to query %_parent/%_rowid */
+  int nLeaf;                      /* Number of leaf cells in table */
+  int nNonLeaf;                   /* Number of non-leaf cells in table */
+  int rc;                         /* Return code */
+  char *zReport;                  /* Message to report */
+  int nErr;                       /* Number of lines in zReport */
+};
+
+#define RTREE_CHECK_MAX_ERROR 100
+
+/*
+** Reset SQL statement pStmt. If the sqlite3_reset() call returns an error,
+** and RtreeCheck.rc==SQLITE_OK, set RtreeCheck.rc to the error code.
+*/
+static void rtreeCheckReset(RtreeCheck *pCheck, sqlite3_stmt *pStmt){
+  int rc = sqlite3_reset(pStmt);
+  if( pCheck->rc==SQLITE_OK ) pCheck->rc = rc;
+}
+
+/*
+** The second and subsequent arguments to this function are a format string
+** and printf style arguments. This function formats the string and attempts
+** to compile it as an SQL statement.
+**
+** If successful, a pointer to the new SQL statement is returned. Otherwise,
+** NULL is returned and an error code left in RtreeCheck.rc.
+*/
+static sqlite3_stmt *rtreeCheckPrepare(
+  RtreeCheck *pCheck,             /* RtreeCheck object */
+  const char *zFmt, ...           /* Format string and trailing args */
+){
+  va_list ap;
+  char *z;
+  sqlite3_stmt *pRet = 0;
+
+  va_start(ap, zFmt);
+  z = sqlite3_vmprintf(zFmt, ap);
+
+  if( pCheck->rc==SQLITE_OK ){
+    if( z==0 ){
+      pCheck->rc = SQLITE_NOMEM;
+    }else{
+      pCheck->rc = sqlite3_prepare_v2(pCheck->db, z, -1, &pRet, 0);
+    }
+  }
+
+  sqlite3_free(z);
+  va_end(ap);
+  return pRet;
+}
+
+/*
+** The second and subsequent arguments to this function are a printf()
+** style format string and arguments. This function formats the string and
+** appends it to the report being accumuated in pCheck.
+*/
+static void rtreeCheckAppendMsg(RtreeCheck *pCheck, const char *zFmt, ...){
+  va_list ap;
+  va_start(ap, zFmt);
+  if( pCheck->rc==SQLITE_OK && pCheck->nErr<RTREE_CHECK_MAX_ERROR ){
+    char *z = sqlite3_vmprintf(zFmt, ap);
+    if( z==0 ){
+      pCheck->rc = SQLITE_NOMEM;
+    }else{
+      pCheck->zReport = sqlite3_mprintf("%z%s%z", 
+          pCheck->zReport, (pCheck->zReport ? "\n" : ""), z
+      );
+      if( pCheck->zReport==0 ){
+        pCheck->rc = SQLITE_NOMEM;
+      }
+    }
+    pCheck->nErr++;
+  }
+  va_end(ap);
+}
+
+/*
+** This function is a no-op if there is already an error code stored
+** in the RtreeCheck object indicated by the first argument. NULL is
+** returned in this case.
+**
+** Otherwise, the contents of rtree table node iNode are loaded from
+** the database and copied into a buffer obtained from sqlite3_malloc().
+** If no error occurs, a pointer to the buffer is returned and (*pnNode)
+** is set to the size of the buffer in bytes.
+**
+** Or, if an error does occur, NULL is returned and an error code left
+** in the RtreeCheck object. The final value of *pnNode is undefined in
+** this case.
+*/
+static u8 *rtreeCheckGetNode(RtreeCheck *pCheck, i64 iNode, int *pnNode){
+  u8 *pRet = 0;                   /* Return value */
+
+  if( pCheck->rc==SQLITE_OK && pCheck->pGetNode==0 ){
+    pCheck->pGetNode = rtreeCheckPrepare(pCheck,
+        "SELECT data FROM %Q.'%q_node' WHERE nodeno=?", 
+        pCheck->zDb, pCheck->zTab
+    );
+  }
+
+  if( pCheck->rc==SQLITE_OK ){
+    sqlite3_bind_int64(pCheck->pGetNode, 1, iNode);
+    if( sqlite3_step(pCheck->pGetNode)==SQLITE_ROW ){
+      int nNode = sqlite3_column_bytes(pCheck->pGetNode, 0);
+      const u8 *pNode = (const u8*)sqlite3_column_blob(pCheck->pGetNode, 0);
+      pRet = sqlite3_malloc64(nNode);
+      if( pRet==0 ){
+        pCheck->rc = SQLITE_NOMEM;
+      }else{
+        memcpy(pRet, pNode, nNode);
+        *pnNode = nNode;
+      }
+    }
+    rtreeCheckReset(pCheck, pCheck->pGetNode);
+    if( pCheck->rc==SQLITE_OK && pRet==0 ){
+      rtreeCheckAppendMsg(pCheck, "Node %lld missing from database", iNode);
+    }
+  }
+
+  return pRet;
+}
+
+/*
+** This function is used to check that the %_parent (if bLeaf==0) or %_rowid
+** (if bLeaf==1) table contains a specified entry. The schemas of the
+** two tables are:
+**
+**   CREATE TABLE %_parent(nodeno INTEGER PRIMARY KEY, parentnode INTEGER)
+**   CREATE TABLE %_rowid(rowid INTEGER PRIMARY KEY, nodeno INTEGER, ...)
+**
+** In both cases, this function checks that there exists an entry with
+** IPK value iKey and the second column set to iVal.
+**
+*/
+static void rtreeCheckMapping(
+  RtreeCheck *pCheck,             /* RtreeCheck object */
+  int bLeaf,                      /* True for a leaf cell, false for interior */
+  i64 iKey,                       /* Key for mapping */
+  i64 iVal                        /* Expected value for mapping */
+){
+  int rc;
+  sqlite3_stmt *pStmt;
+  const char *azSql[2] = {
+    "SELECT parentnode FROM %Q.'%q_parent' WHERE nodeno=?1",
+    "SELECT nodeno FROM %Q.'%q_rowid' WHERE rowid=?1"
+  };
+
+  assert( bLeaf==0 || bLeaf==1 );
+  if( pCheck->aCheckMapping[bLeaf]==0 ){
+    pCheck->aCheckMapping[bLeaf] = rtreeCheckPrepare(pCheck,
+        azSql[bLeaf], pCheck->zDb, pCheck->zTab
+    );
+  }
+  if( pCheck->rc!=SQLITE_OK ) return;
+
+  pStmt = pCheck->aCheckMapping[bLeaf];
+  sqlite3_bind_int64(pStmt, 1, iKey);
+  rc = sqlite3_step(pStmt);
+  if( rc==SQLITE_DONE ){
+    rtreeCheckAppendMsg(pCheck, "Mapping (%lld -> %lld) missing from %s table",
+        iKey, iVal, (bLeaf ? "%_rowid" : "%_parent")
+    );
+  }else if( rc==SQLITE_ROW ){
+    i64 ii = sqlite3_column_int64(pStmt, 0);
+    if( ii!=iVal ){
+      rtreeCheckAppendMsg(pCheck, 
+          "Found (%lld -> %lld) in %s table, expected (%lld -> %lld)",
+          iKey, ii, (bLeaf ? "%_rowid" : "%_parent"), iKey, iVal
+      );
+    }
+  }
+  rtreeCheckReset(pCheck, pStmt);
+}
+
+/*
+** Argument pCell points to an array of coordinates stored on an rtree page.
+** This function checks that the coordinates are internally consistent (no
+** x1>x2 conditions) and adds an error message to the RtreeCheck object
+** if they are not.
+**
+** Additionally, if pParent is not NULL, then it is assumed to point to
+** the array of coordinates on the parent page that bound the page 
+** containing pCell. In this case it is also verified that the two
+** sets of coordinates are mutually consistent and an error message added
+** to the RtreeCheck object if they are not.
+*/
+static void rtreeCheckCellCoord(
+  RtreeCheck *pCheck, 
+  i64 iNode,                      /* Node id to use in error messages */
+  int iCell,                      /* Cell number to use in error messages */
+  u8 *pCell,                      /* Pointer to cell coordinates */
+  u8 *pParent                     /* Pointer to parent coordinates */
+){
+  RtreeCoord c1, c2;
+  RtreeCoord p1, p2;
+  int i;
+
+  for(i=0; i<pCheck->nDim; i++){
+    readCoord(&pCell[4*2*i], &c1);
+    readCoord(&pCell[4*(2*i + 1)], &c2);
+
+    /* printf("%e, %e\n", c1.u.f, c2.u.f); */
+    if( pCheck->bInt ? c1.i>c2.i : c1.f>c2.f ){
+      rtreeCheckAppendMsg(pCheck, 
+          "Dimension %d of cell %d on node %lld is corrupt", i, iCell, iNode
+      );
+    }
+
+    if( pParent ){
+      readCoord(&pParent[4*2*i], &p1);
+      readCoord(&pParent[4*(2*i + 1)], &p2);
+
+      if( (pCheck->bInt ? c1.i<p1.i : c1.f<p1.f) 
+       || (pCheck->bInt ? c2.i>p2.i : c2.f>p2.f)
+      ){
+        rtreeCheckAppendMsg(pCheck, 
+            "Dimension %d of cell %d on node %lld is corrupt relative to parent"
+            , i, iCell, iNode
+        );
+      }
+    }
+  }
+}
+
+/*
+** Run rtreecheck() checks on node iNode, which is at depth iDepth within
+** the r-tree structure. Argument aParent points to the array of coordinates
+** that bound node iNode on the parent node.
+**
+** If any problems are discovered, an error message is appended to the
+** report accumulated in the RtreeCheck object.
+*/
+static void rtreeCheckNode(
+  RtreeCheck *pCheck,
+  int iDepth,                     /* Depth of iNode (0==leaf) */
+  u8 *aParent,                    /* Buffer containing parent coords */
+  i64 iNode                       /* Node to check */
+){
+  u8 *aNode = 0;
+  int nNode = 0;
+
+  assert( iNode==1 || aParent!=0 );
+  assert( pCheck->nDim>0 );
+
+  aNode = rtreeCheckGetNode(pCheck, iNode, &nNode);
+  if( aNode ){
+    if( nNode<4 ){
+      rtreeCheckAppendMsg(pCheck, 
+          "Node %lld is too small (%d bytes)", iNode, nNode
+      );
+    }else{
+      int nCell;                  /* Number of cells on page */
+      int i;                      /* Used to iterate through cells */
+      if( aParent==0 ){
+        iDepth = readInt16(aNode);
+        if( iDepth>RTREE_MAX_DEPTH ){
+          rtreeCheckAppendMsg(pCheck, "Rtree depth out of range (%d)", iDepth);
+          sqlite3_free(aNode);
+          return;
+        }
+      }
+      nCell = readInt16(&aNode[2]);
+      if( (4 + nCell*(8 + pCheck->nDim*2*4))>nNode ){
+        rtreeCheckAppendMsg(pCheck, 
+            "Node %lld is too small for cell count of %d (%d bytes)", 
+            iNode, nCell, nNode
+        );
+      }else{
+        for(i=0; i<nCell; i++){
+          u8 *pCell = &aNode[4 + i*(8 + pCheck->nDim*2*4)];
+          i64 iVal = readInt64(pCell);
+          rtreeCheckCellCoord(pCheck, iNode, i, &pCell[8], aParent);
+
+          if( iDepth>0 ){
+            rtreeCheckMapping(pCheck, 0, iVal, iNode);
+            rtreeCheckNode(pCheck, iDepth-1, &pCell[8], iVal);
+            pCheck->nNonLeaf++;
+          }else{
+            rtreeCheckMapping(pCheck, 1, iVal, iNode);
+            pCheck->nLeaf++;
+          }
+        }
+      }
+    }
+    sqlite3_free(aNode);
+  }
+}
+
+/*
+** The second argument to this function must be either "_rowid" or
+** "_parent". This function checks that the number of entries in the
+** %_rowid or %_parent table is exactly nExpect. If not, it adds
+** an error message to the report in the RtreeCheck object indicated
+** by the first argument.
+*/
+static void rtreeCheckCount(RtreeCheck *pCheck, const char *zTbl, i64 nExpect){
+  if( pCheck->rc==SQLITE_OK ){
+    sqlite3_stmt *pCount;
+    pCount = rtreeCheckPrepare(pCheck, "SELECT count(*) FROM %Q.'%q%s'",
+        pCheck->zDb, pCheck->zTab, zTbl
+    );
+    if( pCount ){
+      if( sqlite3_step(pCount)==SQLITE_ROW ){
+        i64 nActual = sqlite3_column_int64(pCount, 0);
+        if( nActual!=nExpect ){
+          rtreeCheckAppendMsg(pCheck, "Wrong number of entries in %%%s table"
+              " - expected %lld, actual %lld" , zTbl, nExpect, nActual
+          );
+        }
+      }
+      pCheck->rc = sqlite3_finalize(pCount);
+    }
+  }
+}
+
+/*
+** This function does the bulk of the work for the rtree integrity-check.
+** It is called by rtreecheck(), which is the SQL function implementation.
+*/
+static int rtreeCheckTable(
+  sqlite3 *db,                    /* Database handle to access db through */
+  const char *zDb,                /* Name of db ("main", "temp" etc.) */
+  const char *zTab,               /* Name of rtree table to check */
+  char **pzReport                 /* OUT: sqlite3_malloc'd report text */
+){
+  RtreeCheck check;               /* Common context for various routines */
+  sqlite3_stmt *pStmt = 0;        /* Used to find column count of rtree table */
+  int nAux = 0;                   /* Number of extra columns. */
+
+  /* Initialize the context object */
+  memset(&check, 0, sizeof(check));
+  check.db = db;
+  check.zDb = zDb;
+  check.zTab = zTab;
+
+  /* Find the number of auxiliary columns */
+  pStmt = rtreeCheckPrepare(&check, "SELECT * FROM %Q.'%q_rowid'", zDb, zTab);
+  if( pStmt ){
+    nAux = sqlite3_column_count(pStmt) - 2;
+    sqlite3_finalize(pStmt);
+  }else 
+  if( check.rc!=SQLITE_NOMEM ){
+    check.rc = SQLITE_OK;
+  }
+
+  /* Find number of dimensions in the rtree table. */
+  pStmt = rtreeCheckPrepare(&check, "SELECT * FROM %Q.%Q", zDb, zTab);
+  if( pStmt ){
+    int rc;
+    check.nDim = (sqlite3_column_count(pStmt) - 1 - nAux) / 2;
+    if( check.nDim<1 ){
+      rtreeCheckAppendMsg(&check, "Schema corrupt or not an rtree");
+    }else if( SQLITE_ROW==sqlite3_step(pStmt) ){
+      check.bInt = (sqlite3_column_type(pStmt, 1)==SQLITE_INTEGER);
+    }
+    rc = sqlite3_finalize(pStmt);
+    if( rc!=SQLITE_CORRUPT ) check.rc = rc;
+  }
+
+  /* Do the actual integrity-check */
+  if( check.nDim>=1 ){
+    if( check.rc==SQLITE_OK ){
+      rtreeCheckNode(&check, 0, 0, 1);
+    }
+    rtreeCheckCount(&check, "_rowid", check.nLeaf);
+    rtreeCheckCount(&check, "_parent", check.nNonLeaf);
+  }
+
+  /* Finalize SQL statements used by the integrity-check */
+  sqlite3_finalize(check.pGetNode);
+  sqlite3_finalize(check.aCheckMapping[0]);
+  sqlite3_finalize(check.aCheckMapping[1]);
+
+  *pzReport = check.zReport;
+  return check.rc;
+}
+
+/*
+** Implementation of the xIntegrity method for Rtree.
+*/
+static int rtreeIntegrity(
+  sqlite3_vtab *pVtab,   /* The virtual table to check */
+  const char *zSchema,   /* Schema in which the virtual table lives */
+  const char *zName,     /* Name of the virtual table */
+  int isQuick,           /* True for a quick_check */
+  char **pzErr           /* Write results here */
+){
+  Rtree *pRtree = (Rtree*)pVtab;
+  int rc;
+  assert( pzErr!=0 && *pzErr==0 );
+  UNUSED_PARAMETER(zSchema);
+  UNUSED_PARAMETER(zName);
+  UNUSED_PARAMETER(isQuick);
+  rc = rtreeCheckTable(pRtree->db, pRtree->zDb, pRtree->zName, pzErr);
+  if( rc==SQLITE_OK && *pzErr ){
+    *pzErr = sqlite3_mprintf("In RTree %s.%s:\n%z",
+                 pRtree->zDb, pRtree->zName, *pzErr);
+    if( (*pzErr)==0 ) rc = SQLITE_NOMEM;
+  }
+  return rc;
+}
+
+/*
+** Usage:
+**
+**   rtreecheck(<rtree-table>);
+**   rtreecheck(<database>, <rtree-table>);
+**
+** Invoking this SQL function runs an integrity-check on the named rtree
+** table. The integrity-check verifies the following:
+**
+**   1. For each cell in the r-tree structure (%_node table), that:
+**
+**       a) for each dimension, (coord1 <= coord2).
+**
+**       b) unless the cell is on the root node, that the cell is bounded
+**          by the parent cell on the parent node.
+**
+**       c) for leaf nodes, that there is an entry in the %_rowid 
+**          table corresponding to the cell's rowid value that 
+**          points to the correct node.
+**
+**       d) for cells on non-leaf nodes, that there is an entry in the 
+**          %_parent table mapping from the cell's child node to the
+**          node that it resides on.
+**
+**   2. That there are the same number of entries in the %_rowid table
+**      as there are leaf cells in the r-tree structure, and that there
+**      is a leaf cell that corresponds to each entry in the %_rowid table.
+**
+**   3. That there are the same number of entries in the %_parent table
+**      as there are non-leaf cells in the r-tree structure, and that 
+**      there is a non-leaf cell that corresponds to each entry in the 
+**      %_parent table.
+*/
+static void rtreecheck(
+  sqlite3_context *ctx, 
+  int nArg, 
+  sqlite3_value **apArg
+){
+  if( nArg!=1 && nArg!=2 ){
+    sqlite3_result_error(ctx, 
+        "wrong number of arguments to function rtreecheck()", -1
+    );
+  }else{
+    int rc;
+    char *zReport = 0;
+    const char *zDb = (const char*)sqlite3_value_text(apArg[0]);
+    const char *zTab;
+    if( nArg==1 ){
+      zTab = zDb;
+      zDb = "main";
+    }else{
+      zTab = (const char*)sqlite3_value_text(apArg[1]);
+    }
+    rc = rtreeCheckTable(sqlite3_context_db_handle(ctx), zDb, zTab, &zReport);
+    if( rc==SQLITE_OK ){
+      sqlite3_result_text(ctx, zReport ? zReport : "ok", -1, SQLITE_TRANSIENT);
+    }else{
+      sqlite3_result_error_code(ctx, rc);
+    }
+    sqlite3_free(zReport);
+  }
+}
+
+/* Conditionally include the geopoly code */
+#ifdef SQLITE_ENABLE_GEOPOLY
+# include "geopoly.c"
+#endif
+
+/*
+** Register the r-tree module with database handle db. This creates the
+** virtual table module "rtree" and the debugging/analysis scalar 
+** function "rtreenode".
+*/
+int sqlite3RtreeInit(sqlite3 *db){
+  const int utf8 = SQLITE_UTF8;
+  int rc;
+
+  rc = sqlite3_create_function(db, "rtreenode", 2, utf8, 0, rtreenode, 0, 0);
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_function(db, "rtreedepth", 1, utf8, 0,rtreedepth, 0, 0);
+  }
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_create_function(db, "rtreecheck", -1, utf8, 0,rtreecheck, 0,0);
+  }
+  if( rc==SQLITE_OK ){
+#ifdef SQLITE_RTREE_INT_ONLY
+    void *c = (void *)RTREE_COORD_INT32;
+#else
+    void *c = (void *)RTREE_COORD_REAL32;
+#endif
+    rc = sqlite3_create_module_v2(db, "rtree", &rtreeModule, c, 0);
+  }
+  if( rc==SQLITE_OK ){
+    void *c = (void *)RTREE_COORD_INT32;
+    rc = sqlite3_create_module_v2(db, "rtree_i32", &rtreeModule, c, 0);
+  }
+#ifdef SQLITE_ENABLE_GEOPOLY
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_geopoly_init(db);
+  }
+#endif
+
+  return rc;
+}
+
+/*
+** This routine deletes the RtreeGeomCallback object that was attached
+** one of the SQL functions create by sqlite3_rtree_geometry_callback()
+** or sqlite3_rtree_query_callback().  In other words, this routine is the
+** destructor for an RtreeGeomCallback objecct.  This routine is called when
+** the corresponding SQL function is deleted.
+*/
+static void rtreeFreeCallback(void *p){
+  RtreeGeomCallback *pInfo = (RtreeGeomCallback*)p;
+  if( pInfo->xDestructor ) pInfo->xDestructor(pInfo->pContext);
+  sqlite3_free(p);
+}
+
+/*
+** This routine frees the BLOB that is returned by geomCallback().
+*/
+static void rtreeMatchArgFree(void *pArg){
+  int i;
+  RtreeMatchArg *p = (RtreeMatchArg*)pArg;
+  for(i=0; i<p->nParam; i++){
+    sqlite3_value_free(p->apSqlParam[i]);
+  }
+  sqlite3_free(p);
+}
+
+/*
+** Each call to sqlite3_rtree_geometry_callback() or
+** sqlite3_rtree_query_callback() creates an ordinary SQLite
+** scalar function that is implemented by this routine.
+**
+** All this function does is construct an RtreeMatchArg object that
+** contains the geometry-checking callback routines and a list of
+** parameters to this function, then return that RtreeMatchArg object
+** as a BLOB.
+**
+** The R-Tree MATCH operator will read the returned BLOB, deserialize
+** the RtreeMatchArg object, and use the RtreeMatchArg object to figure
+** out which elements of the R-Tree should be returned by the query.
+*/
+static void geomCallback(sqlite3_context *ctx, int nArg, sqlite3_value **aArg){
+  RtreeGeomCallback *pGeomCtx = (RtreeGeomCallback *)sqlite3_user_data(ctx);
+  RtreeMatchArg *pBlob;
+  sqlite3_int64 nBlob;
+  int memErr = 0;
+
+  nBlob = sizeof(RtreeMatchArg) + (nArg-1)*sizeof(RtreeDValue)
+           + nArg*sizeof(sqlite3_value*);
+  pBlob = (RtreeMatchArg *)sqlite3_malloc64(nBlob);
+  if( !pBlob ){
+    sqlite3_result_error_nomem(ctx);
+  }else{
+    int i;
+    pBlob->iSize = nBlob;
+    pBlob->cb = pGeomCtx[0];
+    pBlob->apSqlParam = (sqlite3_value**)&pBlob->aParam[nArg];
+    pBlob->nParam = nArg;
+    for(i=0; i<nArg; i++){
+      pBlob->apSqlParam[i] = sqlite3_value_dup(aArg[i]);
+      if( pBlob->apSqlParam[i]==0 ) memErr = 1;
+#ifdef SQLITE_RTREE_INT_ONLY
+      pBlob->aParam[i] = sqlite3_value_int64(aArg[i]);
+#else
+      pBlob->aParam[i] = sqlite3_value_double(aArg[i]);
+#endif
+    }
+    if( memErr ){
+      sqlite3_result_error_nomem(ctx);
+      rtreeMatchArgFree(pBlob);
+    }else{
+      sqlite3_result_pointer(ctx, pBlob, "RtreeMatchArg", rtreeMatchArgFree);
+    }
+  }
+}
+
+/*
+** Register a new geometry function for use with the r-tree MATCH operator.
+*/
+int sqlite3_rtree_geometry_callback(
+  sqlite3 *db,                  /* Register SQL function on this connection */
+  const char *zGeom,            /* Name of the new SQL function */
+  int (*xGeom)(sqlite3_rtree_geometry*,int,RtreeDValue*,int*), /* Callback */
+  void *pContext                /* Extra data associated with the callback */
+){
+  RtreeGeomCallback *pGeomCtx;      /* Context object for new user-function */
+
+  /* Allocate and populate the context object. */
+  pGeomCtx = (RtreeGeomCallback *)sqlite3_malloc(sizeof(RtreeGeomCallback));
+  if( !pGeomCtx ) return SQLITE_NOMEM;
+  pGeomCtx->xGeom = xGeom;
+  pGeomCtx->xQueryFunc = 0;
+  pGeomCtx->xDestructor = 0;
+  pGeomCtx->pContext = pContext;
+  return sqlite3_create_function_v2(db, zGeom, -1, SQLITE_ANY, 
+      (void *)pGeomCtx, geomCallback, 0, 0, rtreeFreeCallback
+  );
+}
+
+/*
+** Register a new 2nd-generation geometry function for use with the
+** r-tree MATCH operator.
+*/
+int sqlite3_rtree_query_callback(
+  sqlite3 *db,                 /* Register SQL function on this connection */
+  const char *zQueryFunc,      /* Name of new SQL function */
+  int (*xQueryFunc)(sqlite3_rtree_query_info*), /* Callback */
+  void *pContext,              /* Extra data passed into the callback */
+  void (*xDestructor)(void*)   /* Destructor for the extra data */
+){
+  RtreeGeomCallback *pGeomCtx;      /* Context object for new user-function */
+
+  /* Allocate and populate the context object. */
+  pGeomCtx = (RtreeGeomCallback *)sqlite3_malloc(sizeof(RtreeGeomCallback));
+  if( !pGeomCtx ){
+    if( xDestructor ) xDestructor(pContext);
+    return SQLITE_NOMEM;
+  }
+  pGeomCtx->xGeom = 0;
+  pGeomCtx->xQueryFunc = xQueryFunc;
+  pGeomCtx->xDestructor = xDestructor;
+  pGeomCtx->pContext = pContext;
+  return sqlite3_create_function_v2(db, zQueryFunc, -1, SQLITE_ANY, 
+      (void *)pGeomCtx, geomCallback, 0, 0, rtreeFreeCallback
+  );
+}
+
+#ifndef SQLITE_CORE
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_rtree_init(
+  sqlite3 *db,
+  char **pzErrMsg,
+  const sqlite3_api_routines *pApi
+){
+  SQLITE_EXTENSION_INIT2(pApi)
+  return sqlite3RtreeInit(db);
+}
+#endif
+
+#endif
diff --git a/ext/rtree/rtree.h b/ext/rtree/rtree.h
new file mode 100644
index 0000000000000000000000000000000000000000..8f41500db1a45d6e19441b9759f493994bfcbffe
--- /dev/null
+++ b/ext/rtree/rtree.h
@@ -0,0 +1,30 @@
+/*
+** 2008 May 26
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+******************************************************************************
+**
+** This header file is used by programs that want to link against the
+** RTREE library.  All it does is declare the sqlite3RtreeInit() interface.
+*/
+#include "sqlite3.h"
+
+#ifdef SQLITE_OMIT_VIRTUALTABLE
+# undef SQLITE_ENABLE_RTREE
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif  /* __cplusplus */
+
+int sqlite3RtreeInit(sqlite3 *db);
+
+#ifdef __cplusplus
+}  /* extern "C" */
+#endif  /* __cplusplus */
diff --git a/ext/rtree/rtree1.test b/ext/rtree/rtree1.test
new file mode 100644
index 0000000000000000000000000000000000000000..e596df71d5862cadaf1f45b5a28fe5867bc7ae8b
--- /dev/null
+++ b/ext/rtree/rtree1.test
@@ -0,0 +1,818 @@
+# 2008 Feb 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# The focus of this file is testing the r-tree extension.
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+}
+source [file join [file dirname [info script]] rtree_util.tcl]
+source $testdir/tester.tcl
+set testprefix rtree1
+
+# Test plan:
+#
+#   rtree-1.*: Creating/destroying r-tree tables.
+#   rtree-2.*: Test the implicit constraints - unique rowid and
+#              (coord[N]<=coord[N+1]) for even values of N. Also
+#              automatic assigning of rowid values.
+#   rtree-3.*: Linear scans of r-tree data.
+#   rtree-4.*: Test INSERT
+#   rtree-5.*: Test DELETE
+#   rtree-6.*: Test UPDATE
+#   rtree-7.*: Test renaming an r-tree table.
+#   rtree-8.*: Test constrained scans of r-tree data.
+#
+#   rtree-12.*: Test that on-conflict clauses are supported.
+#   rtree-13.*: Test that bug [d2889096e7bdeac6d] has been fixed.
+#   rtree-14.*: Test if a non-integer is inserted into the PK column of an
+#               r-tree table, it is converted to an integer before being
+#               inserted. Also that if a non-numeric is inserted into one
+#               of the min/max dimension columns, it is converted to the
+#               required type before being inserted.
+#   rtree-15.*: Check that DROP TABLE works within a transaction that
+#               writes to an r-tree table.
+#
+
+ifcapable !rtree {
+  finish_test
+  return
+}
+
+#----------------------------------------------------------------------------
+# Test cases rtree-1.* test CREATE and DROP table statements.
+#
+
+# Test creating and dropping an rtree table.
+#
+do_test rtree-1.1.1 {
+  execsql { CREATE VIRTUAL TABLE t1 USING rtree(ii, x1, x2, y1, y2) }
+} {}
+do_test rtree-1.1.2a {
+  execsql { SELECT name FROM sqlite_master ORDER BY name }
+} {t1 t1_node t1_parent t1_rowid}
+do_execsql_test rtree-1.1.2b {
+  SELECT name FROM pragma_table_list WHERE type='shadow' ORDER BY name;
+} {t1_node t1_parent t1_rowid}
+do_test rtree-1.1.3 {
+  execsql { 
+    DROP TABLE t1; 
+    SELECT name FROM sqlite_master ORDER BY name;
+  }
+} {}
+
+# Test creating and dropping an rtree table with an odd name in
+# an attached database.
+#
+do_test rtree-1.2.1 {
+  file delete -force test2.db
+  execsql {
+    ATTACH 'test2.db' AS aux;
+    CREATE VIRTUAL TABLE aux.'a" "b' USING rtree(ii, x1, x2, y1, y2);
+  }
+} {}
+do_test rtree-1.2.2 {
+  execsql { SELECT name FROM sqlite_master ORDER BY name }
+} {}
+do_test rtree-1.2.3 {
+  execsql { SELECT name FROM aux.sqlite_master ORDER BY name }
+} {{a" "b} {a" "b_node} {a" "b_parent} {a" "b_rowid}}
+do_test rtree-1.2.4 {
+  execsql { 
+    DROP TABLE aux.'a" "b'; 
+    SELECT name FROM aux.sqlite_master ORDER BY name;
+  }
+} {}
+
+# Test that the logic for checking the number of columns specified
+# for an rtree table. Acceptable values are odd numbers between 3 and
+# 11, inclusive.
+#
+set cols [list i1 i2 i3 i4 i5 i6 i7 i8 i9 iA iB iC iD iE iF iG iH iI iJ iK]
+for {set nCol 1} {$nCol<[llength $cols]} {incr nCol} {
+
+  set columns [join [lrange $cols 0 [expr {$nCol-1}]] ,]
+
+  set X {0 {}}
+  if {$nCol%2 == 0}  { set X {1 {Wrong number of columns for an rtree table}} }
+  if {$nCol < 3}     { set X {1 {Too few columns for an rtree table}} }
+  if {$nCol > 11}    { set X {1 {Too many columns for an rtree table}} }
+
+  do_test rtree-1.3.$nCol {
+    catchsql " 
+      CREATE VIRTUAL TABLE t1 USING rtree($columns);
+    "
+  } $X
+
+  catchsql { DROP TABLE t1 }
+}
+do_catchsql_test rtree-1.3.1000 {
+  CREATE VIRTUAL TABLE t1000 USING rtree;
+} {1 {Too few columns for an rtree table}}
+
+# Like execsql except display output as integer where that can be
+# done without loss of information.
+#
+proc execsql_intout {sql} {
+  set out {}
+  foreach term [execsql $sql] {
+    regsub {\.0$} $term {} term
+    lappend out $term
+  }
+  return $out
+}
+
+# Test that it is possible to open an existing database that contains
+# r-tree tables.
+#
+do_execsql_test rtree-1.4.1a {
+  CREATE VIRTUAL TABLE t1 USING rtree(ii, x1, x2);
+  INSERT INTO t1 VALUES(1, 5.0, 10.0);
+  SELECT substr(hex(data),1,40) FROM t1_node;
+} {00000001000000000000000140A0000041200000}
+do_execsql_test rtree-1.4.1b {
+  INSERT INTO t1 VALUES(2, 15.0, 20.0);
+} {}
+do_test rtree-1.4.2 {
+  db close
+  sqlite3 db test.db
+  execsql_intout { SELECT * FROM t1 ORDER BY ii }
+} {1 5 10 2 15 20}
+do_test rtree-1.4.3 {
+  execsql { DROP TABLE t1 }
+} {}
+
+# Test that it is possible to create an r-tree table with ridiculous
+# column names.
+#
+do_test rtree-1.5.1 {
+  execsql_intout {
+    CREATE VIRTUAL TABLE t1 USING rtree("the key", "x dim.", "x2'dim");
+    INSERT INTO t1 VALUES(1, 2, 3);
+    SELECT "the key", "x dim.", "x2'dim" FROM t1;
+  }
+} {1 2 3}
+do_test rtree-1.5.1 {
+  execsql { DROP TABLE t1 }
+} {}
+
+# Force the r-tree constructor to fail.
+#
+do_test rtree-1.6.1 {
+  execsql { CREATE TABLE t1_rowid(a); }
+  catchsql {
+    CREATE VIRTUAL TABLE t1 USING rtree("the key", "x dim.", "x2'dim");
+  }
+} {1 {table "t1_rowid" already exists}}
+do_test rtree-1.6.1 {
+  execsql { DROP TABLE t1_rowid }
+} {}
+
+#----------------------------------------------------------------------------
+# Test cases rtree-2.* 
+#
+do_test rtree-2.1.1 {
+  execsql { 
+    CREATE VIRTUAL TABLE t1 USING rtree(ii, x1, x2, y1, y2);
+    SELECT * FROM t1;
+  }
+} {}
+
+do_test rtree-2.1.2 {
+  execsql { INSERT INTO t1 VALUES(NULL, 1, 3, 2, 4) }
+  execsql_intout { SELECT * FROM t1 }
+} {1 1 3 2 4}
+do_test rtree-2.1.3 {
+  execsql { INSERT INTO t1 VALUES(NULL, 1, 3, 2, 4) }
+  execsql { SELECT rowid FROM t1 ORDER BY rowid }
+} {1 2}
+do_test rtree-2.1.3 {
+  execsql { INSERT INTO t1 VALUES(NULL, 1, 3, 2, 4) }
+  execsql { SELECT ii FROM t1 ORDER BY ii }
+} {1 2 3}
+
+do_test rtree-2.2.1 {
+  catchsql { INSERT INTO t1 VALUES(2, 1, 3, 2, 4) }
+} {1 {UNIQUE constraint failed: t1.ii}}
+do_test rtree-2.2.2 {
+  catchsql { INSERT INTO t1 VALUES(4, 1, 3, 4, 2) }
+} {1 {rtree constraint failed: t1.(y1<=y2)}}
+do_test rtree-2.2.3 {
+  catchsql { INSERT INTO t1 VALUES(4, 3, 1, 2, 4) }
+} {1 {rtree constraint failed: t1.(x1<=x2)}}
+do_test rtree-2.2.4 {
+  execsql { SELECT ii FROM t1 ORDER BY ii }
+} {1 2 3}
+
+do_test rtree-2.X {
+  execsql { DROP TABLE t1 }
+} {}
+
+#----------------------------------------------------------------------------
+# Test cases rtree-3.* test linear scans of r-tree table data. To test
+# this we have to insert some data into an r-tree, but that is not the
+# focus of these tests.
+#
+do_test rtree-3.1.1 {
+  execsql { 
+    CREATE VIRTUAL TABLE t1 USING rtree(ii, x1, x2, y1, y2);
+    SELECT * FROM t1;
+  }
+} {}
+do_test rtree-3.1.2 {
+  execsql_intout { 
+    INSERT INTO t1 VALUES(5, 1, 3, 2, 4);
+    SELECT * FROM t1;
+  }
+} {5 1 3 2 4}
+do_test rtree-3.1.3 {
+  execsql_intout {
+    INSERT INTO t1 VALUES(6, 2, 6, 4, 8);
+    SELECT * FROM t1;
+  }
+} {5 1 3 2 4 6 2 6 4 8}
+
+# Test the constraint on the coordinates (c[i]<=c[i+1] where (i%2==0)):
+do_test rtree-3.2.1 {
+  catchsql { INSERT INTO t1 VALUES(7, 2, 6, 4, 3) }
+} {1 {rtree constraint failed: t1.(y1<=y2)}}
+do_test rtree-3.2.2 {
+  catchsql { INSERT INTO t1 VALUES(8, 2, 6, 3, 3) }
+} {0 {}}
+
+#----------------------------------------------------------------------------
+# Test cases rtree-5.* test DELETE operations.
+#
+do_test rtree-5.1.1 {
+  execsql { CREATE VIRTUAL TABLE t2 USING rtree(ii, x1, x2) }
+} {}
+do_test rtree-5.1.2 {
+  execsql_intout { 
+    INSERT INTO t2 VALUES(1, 10, 20);
+    INSERT INTO t2 VALUES(2, 30, 40);
+    INSERT INTO t2 VALUES(3, 50, 60);
+    SELECT * FROM t2 ORDER BY ii;
+  }
+} {1 10 20 2 30 40 3 50 60}
+do_test rtree-5.1.3 {
+  execsql_intout { 
+    DELETE FROM t2 WHERE ii=2;
+    SELECT * FROM t2 ORDER BY ii;
+  }
+} {1 10 20 3 50 60}
+do_test rtree-5.1.4 {
+  execsql_intout { 
+    DELETE FROM t2 WHERE ii=1;
+    SELECT * FROM t2 ORDER BY ii;
+  }
+} {3 50 60}
+do_test rtree-5.1.5 {
+  execsql { 
+    DELETE FROM t2 WHERE ii=3;
+    SELECT * FROM t2 ORDER BY ii;
+  }
+} {}
+do_test rtree-5.1.6 {
+  execsql { SELECT * FROM t2_rowid }
+} {}
+
+#----------------------------------------------------------------------------
+# Test cases rtree-5.* test UPDATE operations.
+#
+do_test rtree-6.1.1 {
+  execsql { CREATE VIRTUAL TABLE t3 USING rtree(ii, x1, x2, y1, y2) }
+} {}
+do_test rtree-6.1.2 {
+  execsql_intout {
+    INSERT INTO t3 VALUES(1, 2, 3, 4, 5);
+    UPDATE t3 SET x2=5;
+    SELECT * FROM t3;
+  }
+} {1 2 5 4 5}
+do_test rtree-6.1.3 {
+  execsql { UPDATE t3 SET ii = 2 }
+  execsql_intout { SELECT * FROM t3 }
+} {2 2 5 4 5}
+
+#----------------------------------------------------------------------------
+# Test cases rtree-7.* test rename operations.
+#
+do_test rtree-7.1.1 {
+  execsql {
+    CREATE VIRTUAL TABLE t4 USING rtree(ii, x1, x2, y1, y2, z1, z2);
+    INSERT INTO t4 VALUES(1, 2, 3, 4, 5, 6, 7);
+  }
+} {}
+do_test rtree-7.1.2 {
+  execsql { ALTER TABLE t4 RENAME TO t5 }
+  execsql_intout { SELECT * FROM t5 }
+} {1 2 3 4 5 6 7}
+do_test rtree-7.1.3 {
+  db close
+  sqlite3 db test.db
+  execsql_intout { SELECT * FROM t5 }
+} {1 2 3 4 5 6 7}
+do_test rtree-7.1.4 {
+  execsql { ALTER TABLE t5 RENAME TO 'raisara "one"'''}
+  execsql_intout { SELECT * FROM "raisara ""one""'" }
+} {1 2 3 4 5 6 7}
+do_test rtree-7.1.5 {
+  execsql_intout { SELECT * FROM 'raisara "one"''' }
+} {1 2 3 4 5 6 7}
+do_test rtree-7.1.6 {
+  execsql { ALTER TABLE "raisara ""one""'" RENAME TO "abc 123" }
+  execsql_intout { SELECT * FROM "abc 123" }
+} {1 2 3 4 5 6 7}
+do_test rtree-7.1.7 {
+  db close
+  sqlite3 db test.db
+  execsql_intout { SELECT * FROM "abc 123" }
+} {1 2 3 4 5 6 7}
+
+# An error midway through a rename operation.
+do_test rtree-7.2.1 {
+  execsql { 
+    CREATE TABLE t4_node(a);
+  }
+  catchsql { ALTER TABLE "abc 123" RENAME TO t4 }
+} {1 {SQL logic error}}
+do_test rtree-7.2.2 {
+  execsql_intout { SELECT * FROM "abc 123" }
+} {1 2 3 4 5 6 7}
+do_test rtree-7.2.3 {
+  execsql { 
+    DROP TABLE t4_node;
+    CREATE TABLE t4_rowid(a);
+  }
+  catchsql { ALTER TABLE "abc 123" RENAME TO t4 }
+} {1 {SQL logic error}}
+do_test rtree-7.2.4 {
+  db close
+  sqlite3 db test.db
+  execsql_intout { SELECT * FROM "abc 123" }
+} {1 2 3 4 5 6 7}
+do_test rtree-7.2.5 {
+  execsql { DROP TABLE t4_rowid }
+  execsql { ALTER TABLE "abc 123" RENAME TO t4 }
+  execsql_intout { SELECT * FROM t4 }
+} {1 2 3 4 5 6 7}
+
+
+#----------------------------------------------------------------------------
+# Test cases rtree-8.*
+#
+
+# Test that the function to determine if a leaf cell is part of the
+# result set works.
+do_test rtree-8.1.1 {
+  execsql {
+    CREATE VIRTUAL TABLE t6 USING rtree(ii, x1, x2);
+    INSERT INTO t6 VALUES(1, 3, 7);
+    INSERT INTO t6 VALUES(2, 4, 6);
+  }
+} {}
+do_test rtree-8.1.2 { execsql { SELECT ii FROM t6 WHERE x1>2 } }   {1 2}
+do_test rtree-8.1.3 { execsql { SELECT ii FROM t6 WHERE x1>3 } }   {2}
+do_test rtree-8.1.4 { execsql { SELECT ii FROM t6 WHERE x1>4 } }   {}
+do_test rtree-8.1.5 { execsql { SELECT ii FROM t6 WHERE x1>5 } }   {}
+do_test rtree-8.1.6 { execsql { SELECT ii FROM t6 WHERE x1>''} }   {}
+do_test rtree-8.1.7 { execsql { SELECT ii FROM t6 WHERE x1>null}}  {}
+do_test rtree-8.1.8 { execsql { SELECT ii FROM t6 WHERE x1>'2'} }   {1 2}
+do_test rtree-8.1.9 { execsql { SELECT ii FROM t6 WHERE x1>'3'} }   {2}
+do_test rtree-8.2.2 { execsql { SELECT ii FROM t6 WHERE x1>=2 } }  {1 2}
+do_test rtree-8.2.3 { execsql { SELECT ii FROM t6 WHERE x1>=3 } }  {1 2}
+do_test rtree-8.2.4 { execsql { SELECT ii FROM t6 WHERE x1>=4 } }  {2}
+do_test rtree-8.2.5 { execsql { SELECT ii FROM t6 WHERE x1>=5 } }  {}
+do_test rtree-8.2.6 { execsql { SELECT ii FROM t6 WHERE x1>=''} }  {}
+do_test rtree-8.2.7 { execsql { SELECT ii FROM t6 WHERE x1>=null}} {}
+do_test rtree-8.2.8 { execsql { SELECT ii FROM t6 WHERE x1>='4'} } {2}
+do_test rtree-8.2.9 { execsql { SELECT ii FROM t6 WHERE x1>='5'} } {}
+do_test rtree-8.3.2 { execsql { SELECT ii FROM t6 WHERE x1<2 } }   {}
+do_test rtree-8.3.3 { execsql { SELECT ii FROM t6 WHERE x1<3 } }   {}
+do_test rtree-8.3.4 { execsql { SELECT ii FROM t6 WHERE x1<4 } }   {1}
+do_test rtree-8.3.5 { execsql { SELECT ii FROM t6 WHERE x1<5 } }   {1 2}
+do_test rtree-8.3.6 { execsql { SELECT ii FROM t6 WHERE x1<''} }   {1 2}
+do_test rtree-8.3.7 { execsql { SELECT ii FROM t6 WHERE x1<null}}  {}
+do_test rtree-8.3.8 { execsql { SELECT ii FROM t6 WHERE x1<'3'} }  {}
+do_test rtree-8.3.9 { execsql { SELECT ii FROM t6 WHERE x1<'4'} }  {1}
+do_test rtree-8.4.2 { execsql { SELECT ii FROM t6 WHERE x1<=2 } }  {}
+do_test rtree-8.4.3 { execsql { SELECT ii FROM t6 WHERE x1<=3 } }  {1}
+do_test rtree-8.4.4 { execsql { SELECT ii FROM t6 WHERE x1<=4 } }  {1 2}
+do_test rtree-8.4.5 { execsql { SELECT ii FROM t6 WHERE x1<=5 } }  {1 2}
+do_test rtree-8.4.6 { execsql { SELECT ii FROM t6 WHERE x1<=''} }  {1 2}
+do_test rtree-8.4.7 { execsql { SELECT ii FROM t6 WHERE x1<=null}} {}
+do_test rtree-8.5.2 { execsql { SELECT ii FROM t6 WHERE x1=2 } }   {}
+do_test rtree-8.5.3 { execsql { SELECT ii FROM t6 WHERE x1=3 } }   {1}
+do_test rtree-8.5.4 { execsql { SELECT ii FROM t6 WHERE x1=4 } }   {2}
+do_test rtree-8.5.5 { execsql { SELECT ii FROM t6 WHERE x1=5 } }   {}
+do_test rtree-8.5.6 { execsql { SELECT ii FROM t6 WHERE x1=''} }   {}
+do_test rtree-8.5.7 { execsql { SELECT ii FROM t6 WHERE x1=null}}  {}
+
+
+#----------------------------------------------------------------------------
+# Test cases rtree-9.*
+#
+# Test that ticket #3549 is fixed.
+do_test rtree-9.1 {
+  execsql {
+    CREATE TABLE foo (id INTEGER PRIMARY KEY);
+    CREATE VIRTUAL TABLE bar USING rtree (id, minX, maxX, minY, maxY);
+    INSERT INTO foo VALUES (null);
+    INSERT INTO foo SELECT null FROM foo;
+    INSERT INTO foo SELECT null FROM foo;
+    INSERT INTO foo SELECT null FROM foo;
+    INSERT INTO foo SELECT null FROM foo;
+    INSERT INTO foo SELECT null FROM foo;
+    INSERT INTO foo SELECT null FROM foo;
+    DELETE FROM foo WHERE id > 40;
+    INSERT INTO bar SELECT NULL, 0, 0, 0, 0 FROM foo;
+  }
+} {}
+
+# This used to crash.
+do_test rtree-9.2 {
+  execsql {
+    SELECT count(*) FROM bar b1, bar b2, foo s1 WHERE s1.id = b1.id;
+  }
+} {1600}
+do_test rtree-9.3 {
+  execsql {
+    SELECT count(*) FROM bar b1, bar b2, foo s1 
+    WHERE b1.minX <= b2.maxX AND s1.id = b1.id;
+  }
+} {1600}
+
+#-------------------------------------------------------------------------
+# Ticket #3970: Check that the error message is meaningful when a 
+# keyword is used as a column name.
+#
+do_test rtree-10.1 {
+  catchsql { CREATE VIRTUAL TABLE t7 USING rtree(index, x1, y1, x2, y2) }
+} {1 {near "index": syntax error}}
+
+#-------------------------------------------------------------------------
+# Test last_insert_rowid().
+# 
+do_test rtree-11.1 {
+  execsql {
+    CREATE VIRTUAL TABLE t8 USING rtree(idx, x1, x2, y1, y2);
+    INSERT INTO t8 VALUES(1, 1.0, 1.0, 2.0, 2.0);
+    SELECT last_insert_rowid();
+  }
+} {1}
+do_test rtree-11.2 {
+  execsql {
+    INSERT INTO t8 VALUES(NULL, 1.0, 1.0, 2.0, 2.0);
+    SELECT last_insert_rowid();
+  }
+} {2}
+
+#-------------------------------------------------------------------------
+# Test on-conflict clause handling.
+#
+db_delete_and_reopen
+do_execsql_test 12.0.1 {
+  CREATE VIRTUAL TABLE t1 USING rtree_i32(idx, x1, x2, y1, y2);
+  INSERT INTO t1 VALUES(1,   1, 2, 3, 4);
+  SELECT substr(hex(data),1,56) FROM t1_node;
+} {00000001000000000000000100000001000000020000000300000004}
+do_execsql_test 12.0.2 {
+  INSERT INTO t1 VALUES(2,   2, 3, 4, 5);
+  INSERT INTO t1 VALUES(3,   3, 4, 5, 6);
+
+  CREATE TABLE source(idx, x1, x2, y1, y2);
+  INSERT INTO source VALUES(5, 8, 8, 8, 8);
+  INSERT INTO source VALUES(2, 7, 7, 7, 7);
+}
+db_save_and_close
+foreach {tn sql_template testdata} {
+  1    "INSERT %CONF% INTO t1 VALUES(2, 7, 7, 7, 7)" {
+    ROLLBACK 0 1 {1 1 2 3 4   2 2 3 4 5   3 3 4 5 6}
+    ABORT    0 1 {1 1 2 3 4   2 2 3 4 5   3 3 4 5 6   4 4 5 6 7}
+    IGNORE   0 0 {1 1 2 3 4   2 2 3 4 5   3 3 4 5 6   4 4 5 6 7}
+    FAIL     0 1 {1 1 2 3 4   2 2 3 4 5   3 3 4 5 6   4 4 5 6 7}
+    REPLACE  0 0 {1 1 2 3 4   2 7 7 7 7   3 3 4 5 6   4 4 5 6 7}
+  }
+
+  2    "INSERT %CONF% INTO t1 SELECT * FROM source" {
+    ROLLBACK 1 1 {1 1 2 3 4   2 2 3 4 5   3 3 4 5 6}
+    ABORT    1 1 {1 1 2 3 4   2 2 3 4 5   3 3 4 5 6   4 4 5 6 7}
+    IGNORE   1 0 {1 1 2 3 4   2 2 3 4 5   3 3 4 5 6   4 4 5 6 7  5 8 8 8 8}
+    FAIL     1 1 {1 1 2 3 4   2 2 3 4 5   3 3 4 5 6   4 4 5 6 7  5 8 8 8 8}
+    REPLACE  1 0 {1 1 2 3 4   2 7 7 7 7   3 3 4 5 6   4 4 5 6 7  5 8 8 8 8}
+  }
+
+  3    "UPDATE %CONF% t1 SET idx = 2 WHERE idx = 4" {
+    ROLLBACK 0 1 {1 1 2 3 4   2 2 3 4 5   3 3 4 5 6}
+    ABORT    0 1 {1 1 2 3 4   2 2 3 4 5   3 3 4 5 6   4 4 5 6 7}
+    IGNORE   0 0 {1 1 2 3 4   2 2 3 4 5   3 3 4 5 6   4 4 5 6 7}
+    FAIL     0 1 {1 1 2 3 4   2 2 3 4 5   3 3 4 5 6   4 4 5 6 7}
+    REPLACE  0 0 {1 1 2 3 4   2 4 5 6 7   3 3 4 5 6}
+  }
+
+  3    "UPDATE %CONF% t1 SET idx = ((idx+1)%5)+1 WHERE idx > 2" {
+    ROLLBACK 1 1 {1 1 2 3 4   2 2 3 4 5   3 3 4 5 6}
+    ABORT    1 1 {1 1 2 3 4   2 2 3 4 5   3 3 4 5 6   4 4 5 6 7}
+    IGNORE   1 0 {1 1 2 3 4   2 2 3 4 5               4 4 5 6 7   5 3 4 5 6}
+    FAIL     1 1 {1 1 2 3 4   2 2 3 4 5               4 4 5 6 7   5 3 4 5 6}
+    REPLACE  1 0 {1 4 5 6 7   2 2 3 4 5                           5 3 4 5 6}
+  }
+
+  4    "INSERT %CONF% INTO t1 VALUES(2, 7, 6, 7, 7)" {
+    ROLLBACK 0 2 {1 1 2 3 4   2 2 3 4 5   3 3 4 5 6}
+    ABORT    0 2 {1 1 2 3 4   2 2 3 4 5   3 3 4 5 6   4 4 5 6 7}
+    IGNORE   0 0 {1 1 2 3 4   2 2 3 4 5   3 3 4 5 6   4 4 5 6 7}
+    FAIL     0 2 {1 1 2 3 4   2 2 3 4 5   3 3 4 5 6   4 4 5 6 7}
+    REPLACE  0 2 {1 1 2 3 4   2 2 3 4 5   3 3 4 5 6   4 4 5 6 7}
+  }
+
+} {
+  foreach {mode uses error data} $testdata {
+    db_restore_and_reopen
+
+    set sql [string map [list %CONF% "OR $mode"] $sql_template]
+    set testname "12.$tn.[string tolower $mode]"
+
+    execsql {
+      BEGIN;
+        INSERT INTO t1 VALUES(4,   4, 5, 6, 7);
+    }
+
+    set res(0) {0 {}}
+    set res(1) {1 {UNIQUE constraint failed: t1.idx}}
+    set res(2) {1 {rtree constraint failed: t1.(x1<=x2)}}
+
+    do_catchsql_test $testname.1 $sql $res($error)
+    do_test $testname.2 [list sql_uses_stmt db $sql] $uses
+    do_execsql_test $testname.3 { SELECT * FROM t1 ORDER BY idx } $data
+
+    do_rtree_integrity_test $testname.4 t1
+    db close
+  }
+}
+
+#-------------------------------------------------------------------------
+# Test that bug [d2889096e7bdeac6d] has been fixed.
+#
+reset_db
+do_execsql_test 13.1 {
+  CREATE VIRTUAL TABLE t9 USING rtree(id, xmin, xmax);
+  INSERT INTO t9 VALUES(1,0,0);            
+  INSERT INTO t9 VALUES(2,0,0);
+  SELECT * FROM t9 WHERE id IN (1, 2);
+} {1 0.0 0.0 2 0.0 0.0}
+
+do_execsql_test 13.2 {
+  WITH r(x) AS (
+    SELECT 1 UNION ALL
+    SELECT 2 UNION ALL
+    SELECT 3
+  )
+  SELECT * FROM r CROSS JOIN t9 WHERE id=x;
+} {1 1 0.0 0.0 2 2 0.0 0.0}
+
+#-------------------------------------------------------------------------
+# Test if a non-integer is inserted into the PK column of an r-tree
+# table, it is converted to an integer before being inserted. Also
+# that if a non-numeric is inserted into one of the min/max dimension
+# columns, it is converted to the required type before being inserted.
+#
+do_execsql_test 14.1 {
+  CREATE VIRTUAL TABLE t10 USING rtree(ii, x1, x2);
+}
+
+do_execsql_test 14.2 {
+  INSERT INTO t10 VALUES(NULL,   1, 2);
+  INSERT INTO t10 VALUES(NULL,   2, 3);
+  INSERT INTO t10 VALUES('4xxx', 3, 4);
+  INSERT INTO t10 VALUES(5.0,    4, 5);
+  INSERT INTO t10 VALUES(6.4,    5, 6);
+}
+do_execsql_test 14.3 {
+  SELECT * FROM t10;
+} {
+  1 1.0 2.0   2 2.0 3.0   4 3.0 4.0   5 4.0 5.0   6 5.0 6.0
+}
+
+do_execsql_test 14.4 {
+  DELETE FROM t10;
+  INSERT INTO t10 VALUES(1, 'one', 'two');
+  INSERT INTO t10 VALUES(2, '52xyz', '81...');
+}
+do_execsql_test 14.5 {
+  SELECT * FROM t10;
+} {
+  1 0.0 0.0
+  2 52.0 81.0
+}
+do_execsql_test 14.6 {
+  INSERT INTO t10 VALUES(0,10,20);
+  SELECT * FROM t10 WHERE ii=NULL;
+} {}
+do_execsql_test 14.7 {
+  SELECT * FROM t10 WHERE ii='xyz';
+} {}
+do_execsql_test 14.8 {
+  SELECT * FROM t10 WHERE ii='0.0';
+} {0 10.0 20.0}
+do_execsql_test 14.9 {
+  SELECT * FROM t10 WHERE ii=0.0;
+} {0 10.0 20.0}
+
+
+do_execsql_test 14.104 {
+  DROP TABLE t10;
+  CREATE VIRTUAL TABLE t10 USING rtree_i32(ii, x1, x2);
+  INSERT INTO t10 VALUES(1, 'one', 'two');
+  INSERT INTO t10 VALUES(2, '52xyz', '81...');
+  INSERT INTO t10 VALUES(3, 42.3, 49.9);
+}
+do_execsql_test 14.105 {
+  SELECT * FROM t10;
+} {
+  1 0 0
+  2 52 81
+  3 42 49
+}
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test 15.0 {
+  CREATE VIRTUAL TABLE rt USING rtree(id, x1,x2, y1,y2);
+  CREATE TEMP TABLE t13(a, b, c);
+}
+do_execsql_test 15.1 {
+  BEGIN;
+  INSERT INTO rt VALUES(1,2,3,4,5);
+}
+do_execsql_test 15.2 {
+  DROP TABLE t13;
+  COMMIT;
+}
+
+# Test cases for the new auxiliary columns feature
+#
+do_catchsql_test 16.100 {
+  CREATE VIRTUAL TABLE t16 USING rtree(id,x0,x1,y0,+aux1,x1);
+} {1 {Auxiliary rtree columns must be last}}
+do_test 16.110 {
+  set sql {
+    CREATE VIRTUAL TABLE t16 USING rtree(
+      id, x00, x01, x10, x11, x20, x21, x30, x31, x40, x41
+  }
+  for {set i 12} {$i<=100} {incr i} {
+     append sql ", +a$i"
+  }
+  append sql ");"
+  execsql $sql
+} {}
+do_test 16.120 {
+  set sql {
+    CREATE VIRTUAL TABLE t16b USING rtree(
+      id, x00, x01, x10, x11, x20, x21, x30, x31, x40, x41
+  }
+  for {set i 12} {$i<=101} {incr i} {
+     append sql ", +a$i"
+  }
+  append sql ");"
+  catchsql $sql
+} {1 {Too many columns for an rtree table}}
+
+do_execsql_test 16.130 {
+  DROP TABLE IF EXISTS rt1;
+  CREATE VIRTUAL TABLE rt1 USING rtree(id, x1, x2, +aux);
+  INSERT INTO rt1 VALUES(1, 1, 2, 'aux1');
+  INSERT INTO rt1 VALUES(2, 2, 3, 'aux2');
+  INSERT INTO rt1 VALUES(3, 3, 4, 'aux3');
+  INSERT INTO rt1 VALUES(4, 4, 5, 'aux4');
+  SELECT * FROM rt1 WHERE id IN (1, 2, 3, 4);
+} {1 1.0 2.0 aux1 2 2.0 3.0 aux2 3 3.0 4.0 aux3 4 4.0 5.0 aux4}
+
+reset_db
+do_execsql_test 17.0 {
+  CREATE VIRTUAL TABLE t1 USING rtree(id, x1 PRIMARY KEY, x2, y1, y2);
+  CREATE VIRTUAL TABLE t2 USING rtree(id, x1, x2, y1, y2 UNIQUE);
+}
+do_execsql_test 17.1 {
+  REINDEX t1;
+  REINDEX t2;
+} {}
+
+do_execsql_test 17.2 {
+  REINDEX;
+} {}
+
+reset_db
+do_execsql_test 18.0 {
+  CREATE VIRTUAL TABLE rt0 USING rtree(c0, c1, c2);
+  INSERT INTO rt0(c0,c1,c2) VALUES(9,2,3);
+  SELECT c0 FROM rt0 WHERE rt0.c1 > '-1'; 
+  SELECT rt0.c1 > '-1' FROM rt0;
+} {9 1}
+
+expand_all_sql db
+
+# 2020-02-28 ticket e63b4d1a65546532
+reset_db
+do_execsql_test 19.0 {
+  CREATE VIRTUAL TABLE rt0 USING rtree(a,b,c);
+  INSERT INTO rt0(a,b,c) VALUES(0,0.0,0.0);
+  CREATE VIEW v0(x) AS SELECT DISTINCT rt0.b FROM rt0;
+  SELECT v0.x FROM v0, rt0;
+} {0.0}
+do_execsql_test 19.1 {
+  SELECT v0.x FROM v0, rt0 WHERE v0.x = rt0.b;
+} {0.0}
+
+# 2022-06-20 https://sqlite.org/forum/forumpost/57bdf2217d
+#
+reset_db
+do_execsql_test 20.0 {
+  CREATE VIRTUAL TABLE rt0 USING rtree(id, x0, x1);
+  CREATE TABLE t0(a INT);
+  CREATE TABLE t1(b INT);
+  INSERT INTO rt0 VALUES(0, 0, 0);
+}
+do_catchsql_test 20.1 {
+  SELECT * FROM t1 JOIN t0 ON x0>a RIGHT JOIN rt0 ON true WHERE +x0 = 0;
+} {1 {ON clause references tables to its right}}
+do_catchsql_test 20.2 {
+  SELECT * FROM t1 JOIN t0 ON x0>a RIGHT JOIN rt0 ON true WHERE x0 = 0;
+} {1 {ON clause references tables to its right}}
+db null -
+do_execsql_test 20.3 {
+  SELECT * FROM t1 JOIN t0 ON true RIGHT JOIN rt0 ON x0>a WHERE +x0 = 0;
+} {- - 0 0.0 0.0}
+do_execsql_test 20.4 {
+  SELECT * FROM t1 JOIN t0 ON true RIGHT JOIN rt0 ON x0>a WHERE x0 = 0;
+} {- - 0 0.0 0.0}
+
+# 2023-05-19 https://sqlite.org/forum/forumpost/da61c4a1b5b4af19
+# Do not omit constraints that involve equality comparisons of
+# floating-point values.
+#
+reset_db
+do_execsql_test 21.0 {
+  CREATE VIRTUAL TABLE t1 USING rtree(id, x0, x1);
+  INSERT INTO t1 VALUES(0, 1, 9223372036854775807);
+  SELECT count(*) FROM t1 WHERE x1=9223372036854775807;
+} {0}
+do_execsql_test 21.1 {
+ SELECT x1=9223372036854775807 FROM t1;
+} {0}
+
+# 2023-05-22 https://sqlite.org/forum/forumpost/da70ee0d0d
+# Round-off error associated with using large integer constraints on
+# a rtree search.
+#
+if {$tcl_platform(machine)!="i686" || $tcl_platform(os)!="Linux"} {
+  reset_db
+  do_execsql_test 22.0 {
+    CREATE VIRTUAL TABLE t1 USING rtree ( id, x0, x1 );  
+    INSERT INTO t1 VALUES (123, 9223372036854775799, 9223372036854775800);
+    SELECT id FROM t1 WHERE x0 > 9223372036854775807;
+  } {123}
+  do_execsql_test 22.1 {
+    SELECT id, x0 > 9223372036854775807 AS 'a0' FROM t1;
+  } {123 1}
+}
+
+# 2023-10-14 dbsqlfuzz --sql-fuzz find.  rtreecheck() should not call
+# BEGIN/COMMIT because that causes problems with statement transactions,
+# and it is unnecessary.
+#
+reset_db
+do_test 23.0 {
+  db eval {CREATE TABLE t1(a,b,c);}
+  catch {db eval {CREATE TABLE t2 AS SELECT rtreecheck('t1') AS y;}}
+  db eval {PRAGMA integrity_check;}
+} {ok}
+
+reset_db
+do_execsql_test 24.0 {
+  CREATE VIRTUAL TABLE rt1 USING rtree_i32(rid, c1, c2);
+  INSERT INTO rt1(rid, c1, c2) VALUES (9223372036854775807, 10, 18);
+}
+
+do_execsql_test 24.1 {
+  SELECT (rid = (CAST (9223372036854775807 AS REAL)))
+  FROM rt1 WHERE
+         (rid = (CAST (9223372036854775807 AS REAL)));
+}
+
+do_execsql_test 24.2 {
+  DELETE FROM rt1;
+  INSERT INTO rt1(rid, c1, c2) VALUES(1,2,3);
+  SELECT * FROM rt1 WHERE rid=1.005;
+} {}
+
+finish_test
diff --git a/ext/rtree/rtree2.test b/ext/rtree/rtree2.test
new file mode 100644
index 0000000000000000000000000000000000000000..31c191481e2a799e6f0213fa316537675ae74467
--- /dev/null
+++ b/ext/rtree/rtree2.test
@@ -0,0 +1,147 @@
+# 2008 Feb 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# The focus of this file is testing the r-tree extension.
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] rtree_util.tcl]
+source $testdir/tester.tcl
+
+ifcapable !rtree {
+  finish_test
+  return
+}
+
+set ::NROW   1000
+set ::NDEL     10
+set ::NSELECT 100
+
+if {[info exists G(isquick)] && $G(isquick)} {
+  set ::NROW 100
+  set ::NSELECT 10
+}
+
+foreach module {rtree_i32 rtree} {
+  if {$module=="rtree_i32"} {set etype INT} {set etype REAL}
+  for {set nDim 1} {$nDim <= 5} {incr nDim} {
+  
+    do_test rtree2-$module.$nDim.1 {
+      set cols [list]
+      foreach c [list c0 c1 c2 c3 c4 c5 c6 c7 c8 c9] {
+        lappend cols "$c $etype"
+      }
+      set cols [join [lrange $cols 0 [expr {$nDim*2-1}]] ", "]
+      execsql " 
+        CREATE VIRTUAL TABLE t1 USING ${module}(ii, $cols);
+        CREATE TABLE t2 (ii, $cols);
+      "
+    } {}
+  
+    do_test rtree2-$module.$nDim.2 {
+      db transaction {
+        for {set ii 0} {$ii < $::NROW} {incr ii} {
+          #puts "Row $ii"
+          set values [list]
+          for {set jj 0} {$jj<$nDim*2} {incr jj} {
+            lappend values [expr int(rand()*1000)]
+          }
+          set values [join $values ,]
+          #puts [rtree_treedump db t1]
+          #puts "INSERT INTO t2 VALUES($ii, $values)"
+          set rc [catch {db eval "INSERT INTO t1 VALUES($ii, $values)"}]
+          if {$rc} {
+            incr ii -1
+          } else {
+            db eval "INSERT INTO t2 VALUES($ii, $values)"
+          }
+          #if {[rtree_check db t1]} {
+            #puts [rtree_treedump db t1]
+            #exit
+          #}
+        }
+      }
+  
+      set t1 [execsql {SELECT * FROM t1 ORDER BY ii}]
+      set t2 [execsql {SELECT * FROM t2 ORDER BY ii}]
+      set rc [expr {$t1 eq $t2}]
+      if {$rc != 1} {
+        puts $t1
+        puts $t2
+      }
+      set rc
+    } {1}
+  
+    do_rtree_integrity_test rtree2-$module.$nDim.3 t1
+  
+    set OPS [list < > <= >= =]
+    for {set ii 0} {$ii < $::NSELECT} {incr ii} {
+      do_test rtree2-$module.$nDim.4.$ii.1 {
+        set where [list]
+        foreach look_three_dots! {. . .} {
+          set colidx [expr int(rand()*($nDim*2+1))-1]
+          if {$colidx<0} {
+            set col ii
+          } else {
+            set col "c$colidx"
+          }
+          set op  [lindex $OPS [expr int(rand()*[llength $OPS])]]
+          set val [expr int(rand()*1000)]
+          lappend where "$col $op $val"
+        }
+        set where [join $where " AND "]
+  
+        set t1 [execsql "SELECT * FROM t1 WHERE $where ORDER BY ii"]
+        set t2 [execsql "SELECT * FROM t2 WHERE $where ORDER BY ii"]
+        set rc [expr {$t1 eq $t2}]
+        if {$rc != 1} {
+          #puts $where
+          puts $t1
+          puts $t2
+          #puts [rtree_treedump db t1]
+          #breakpoint
+          #set t1 [execsql "SELECT * FROM t1 WHERE $where ORDER BY ii"]
+          #exit
+        }
+        set rc
+      } {1}
+    }
+  
+    for {set ii 0} {$ii < $::NROW} {incr ii $::NDEL} {
+      #puts [rtree_treedump db t1]
+      do_test rtree2-$module.$nDim.5.$ii.1 {
+        execsql "DELETE FROM t2 WHERE ii <= $::ii"
+        execsql "DELETE FROM t1 WHERE ii <= $::ii"
+  
+        set t1 [execsql {SELECT * FROM t1 ORDER BY ii}]
+        set t2 [execsql {SELECT * FROM t2 ORDER BY ii}]
+        set rc [expr {$t1 eq $t2}]
+        if {$rc != 1} {
+          puts $t1
+          puts $t2
+        }
+        set rc
+      } {1}
+      do_rtree_integrity_test rtree2-$module.$nDim.5.$ii.2 t1
+    }
+  
+    do_test rtree2-$module.$nDim.6 {
+      execsql {
+        DROP TABLE t1;
+        DROP TABLE t2;
+      }
+    } {}
+  }
+}
+
+finish_test
diff --git a/ext/rtree/rtree3.test b/ext/rtree/rtree3.test
new file mode 100644
index 0000000000000000000000000000000000000000..c980863dbbc5780032bf5c60797bdda37251cd53
--- /dev/null
+++ b/ext/rtree/rtree3.test
@@ -0,0 +1,270 @@
+# 2008 Feb 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# The focus of this file is testing that the r-tree correctly handles
+# out-of-memory conditions.
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+ifcapable !rtree {
+  finish_test
+  return
+}
+
+set ::TMPDBERROR [list 1 \
+  {unable to open a temporary database file for storing temporary tables}
+]
+
+# Test summary:
+#
+#   rtree3-1: Test OOM in simple CREATE TABLE, INSERT, DELETE and SELECT 
+#             commands on an almost empty table.
+#
+#   rtree3-2: Test OOM in a DROP TABLE command.
+#
+#   rtree3-3a: Test OOM during a transaction to insert 100 pseudo-random rows.
+#
+#   rtree3-3b: Test OOM during a transaction deleting all entries in the
+#              database constructed in [rtree3-3a] in pseudo-random order.
+#
+#   rtree3-4a: OOM during "SELECT count(*) FROM ..." on a big table.
+#
+#   rtree3-4b: OOM while deleting rows from a big table.
+#
+#   rtree3-5: Test OOM while inserting rows into a big table.
+#
+#   rtree3-6: Test OOM while deleting all rows of a table, one at a time.
+#
+#   rtree3-7: OOM during an ALTER TABLE RENAME TABLE command.
+#
+#   rtree3-8: Test OOM while registering the r-tree module with sqlite.
+#
+#   rtree3-11: OOM following a constraint failure
+#
+do_faultsim_test rtree3-1 -faults oom* -prep {
+  faultsim_delete_and_reopen
+} -body {
+  execsql {
+    BEGIN TRANSACTION;
+    CREATE VIRTUAL TABLE rt USING rtree(ii, x1, x2, y1, y2);
+    INSERT INTO rt VALUES(NULL, 3, 5, 7, 9);
+    INSERT INTO rt VALUES(NULL, 13, 15, 17, 19);
+    DELETE FROM rt WHERE ii = 1;
+    SELECT * FROM rt;
+    SELECT ii FROM rt WHERE ii = 2;
+    COMMIT;
+  }
+}
+
+do_test rtree3-2.prep {
+  faultsim_delete_and_reopen
+  execsql {
+    CREATE VIRTUAL TABLE rt USING rtree(ii, x1, x2, y1, y2);
+    INSERT INTO rt VALUES(NULL, 3, 5, 7, 9);
+  }
+  faultsim_save_and_close
+} {}
+do_faultsim_test rtree3-2 -faults oom* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { DROP TABLE rt } 
+}
+
+do_malloc_test rtree3-3.prep {
+  faultsim_delete_and_reopen
+  execsql {
+    CREATE VIRTUAL TABLE rt USING rtree(ii, x1, x2, y1, y2, +a1, +a2);
+    INSERT INTO rt VALUES(NULL, 3, 5, 7, 9);
+  }
+  faultsim_save_and_close
+} {}
+
+do_faultsim_test rtree3-3a -faults oom* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  db eval BEGIN
+  for {set ii 0} {$ii < 100} {incr ii} {
+    set f [expr rand()]
+    db eval {INSERT INTO rt VALUES(NULL, $f*10.0, $f*10.0, $f*15.0, $f*15.0)}
+  }
+  db eval COMMIT
+}
+faultsim_save_and_close
+
+do_faultsim_test rtree3-3b -faults oom* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  db eval BEGIN
+  for {set ii 0} {$ii < 100} {incr ii} {
+    set f [expr rand()]
+    db eval { DELETE FROM rt WHERE x1<($f*10.0) AND x1>($f*10.5) }
+  }
+  db eval COMMIT
+} 
+
+do_test rtree3-4.prep {
+  faultsim_delete_and_reopen
+  execsql {
+    BEGIN;
+    PRAGMA page_size = 512;
+    CREATE VIRTUAL TABLE rt USING rtree(ii, x1, x2, y1, y2);
+  }
+  for {set i 0} {$i < 1500} {incr i} {
+    execsql { INSERT INTO rt VALUES($i, $i, $i+1, $i, $i+1) }
+  }
+  execsql { COMMIT }
+  faultsim_save_and_close
+} {}
+
+do_faultsim_test rtree3-4a -faults oom-* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  db eval { SELECT count(*) FROM rt }
+} -test {
+  faultsim_test_result {0 1500}
+}
+
+do_faultsim_test rtree3-4b -faults oom-transient -prep {
+  faultsim_restore_and_reopen
+} -body {
+  db eval { DELETE FROM rt WHERE ii BETWEEN 1 AND 100 }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+do_test rtree3-5.prep {
+  faultsim_delete_and_reopen
+  execsql {
+    BEGIN;
+    PRAGMA page_size = 512;
+    CREATE VIRTUAL TABLE rt USING rtree(ii, x1, x2, y1, y2);
+  }
+  for {set i 0} {$i < 100} {incr i} {
+    execsql { INSERT INTO rt VALUES($i, $i, $i+1, $i, $i+1) }
+  }
+  execsql { COMMIT }
+  faultsim_save_and_close
+} {}
+do_faultsim_test rtree3-5 -faults oom-* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  for {set i 100} {$i < 110} {incr i} {
+    execsql { INSERT INTO rt VALUES($i, $i, $i+1, $i, $i+1) }
+  }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+do_test rtree3-6.prep {
+  faultsim_delete_and_reopen
+  execsql {
+    BEGIN;
+    PRAGMA page_size = 512;
+    CREATE VIRTUAL TABLE rt USING rtree(ii, x1, x2, y1, y2);
+  }
+  for {set i 0} {$i < 50} {incr i} {
+    execsql { INSERT INTO rt VALUES($i, $i, $i+1, $i, $i+1) }
+  }
+  execsql { COMMIT }
+  faultsim_save_and_close
+} {}
+do_faultsim_test rtree3-6 -faults oom-* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql BEGIN
+  for {set i 0} {$i < 50} {incr i} {
+    execsql { DELETE FROM rt WHERE ii=$i }
+  }
+  execsql COMMIT
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+do_test rtree3-7.prep {
+  faultsim_delete_and_reopen
+  execsql { CREATE VIRTUAL TABLE rt USING rtree(ii, x1, x2, y1, y2) }
+  faultsim_save_and_close
+} {}
+do_faultsim_test rtree3-7 -faults oom-* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { ALTER TABLE rt RENAME TO rt2 } 
+} -test {
+  faultsim_test_result {0 {}} $::TMPDBERROR
+}
+
+do_faultsim_test rtree3-8 -faults oom-* -prep {
+  catch { db close }
+} -body {
+  sqlite3 db test.db
+} 
+
+do_faultsim_test rtree3-9 -faults oom-* -prep {
+  sqlite3 db :memory:
+} -body {
+  set rc [register_cube_geom db]
+  if {$rc != "SQLITE_OK"} { error $rc }
+} -test {
+  faultsim_test_result {0 {}} {1 SQLITE_NOMEM}
+}
+
+do_test rtree3-10.prep {
+  faultsim_delete_and_reopen
+  execsql { 
+    CREATE VIRTUAL TABLE rt USING rtree(ii, x1, x2, y1, y2, z1, z2);
+    INSERT INTO rt VALUES(1,  10, 10, 10, 11, 11, 11);
+    INSERT INTO rt VALUES(2,  5, 6, 6, 7, 7, 8);
+  }
+  faultsim_save_and_close
+} {}
+do_faultsim_test rtree3-10 -faults oom-* -prep {
+  faultsim_restore_and_reopen
+  register_cube_geom db
+  execsql { SELECT * FROM rt }
+} -body {
+  execsql { SELECT ii FROM rt WHERE ii MATCH cube(4.5, 5.5, 6.5, 1, 1, 1) }
+} -test {
+  faultsim_test_result {0 2}
+}
+
+
+do_test rtree3-11.prep {
+  faultsim_delete_and_reopen
+  execsql { 
+    CREATE VIRTUAL TABLE rt USING rtree(ii, x1, x2, y1, y2);
+    INSERT INTO rt VALUES(1, 2, 3, 4, 5);
+  }
+  faultsim_save_and_close
+} {}
+do_faultsim_test rtree3-10.1 -faults oom-* -prep {
+  faultsim_restore_and_reopen
+  execsql { SELECT * FROM rt }
+} -body {
+  execsql { INSERT INTO rt VALUES(1, 2, 3, 4, 5) }
+} -test {
+  faultsim_test_result {1 {UNIQUE constraint failed: rt.ii}} \
+                       {1 {constraint failed}}
+}
+do_faultsim_test rtree3-10.2 -faults oom-* -prep {
+  faultsim_restore_and_reopen
+  execsql { SELECT * FROM rt }
+} -body {
+  execsql { INSERT INTO rt VALUES(2, 2, 3, 5, 4) }
+} -test {
+  faultsim_test_result {1 {rtree constraint failed: rt.(y1<=y2)}} \
+                       {1 {constraint failed}}
+}
+
+finish_test
diff --git a/ext/rtree/rtree4.test b/ext/rtree/rtree4.test
new file mode 100644
index 0000000000000000000000000000000000000000..a73921d8d573cb8da6fa7b5bd18cd2633573926c
--- /dev/null
+++ b/ext/rtree/rtree4.test
@@ -0,0 +1,254 @@
+# 2008 May 23
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Randomized test cases for the rtree extension.
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] rtree_util.tcl]
+source $testdir/tester.tcl
+
+ifcapable !rtree {
+  finish_test
+  return
+}
+
+set ::NROW 2500
+if {[info exists G(isquick)] && $G(isquick)} {
+  set ::NROW 250
+}
+
+ifcapable !rtree_int_only {
+  # Return a floating point number between -X and X.
+  # 
+  proc rand {X} {
+    return [expr {int((rand()-0.5)*1024.0*$X)/512.0}]
+  }
+  
+  # Return a positive floating point number less than or equal to X
+  #
+  proc randincr {X} {
+    while 1 {
+      set r [expr {int(rand()*$X*32.0)/32.0}]
+      if {$r>0.0} {return $r}
+    }
+  }
+} else {
+  # For rtree_int_only, return an number between -X and X.
+  # 
+  proc rand {X} {
+    return [expr {int((rand()-0.5)*2*$X)}]
+  }
+  
+  # Return a positive integer less than or equal to X
+  #
+  proc randincr {X} {
+    while 1 {
+      set r [expr {int(rand()*$X)+1}]
+      if {$r>0} {return $r}
+    }
+  }
+}
+  
+# Scramble the $inlist into a random order.
+#
+proc scramble {inlist} {
+  set y {}
+  foreach x $inlist {
+    lappend y [list [expr {rand()}] $x]
+  }
+  set y [lsort $y]
+  set outlist {}
+  foreach x $y {
+    lappend outlist [lindex $x 1]
+  }
+  return $outlist
+}
+
+# Always use the same random seed so that the sequence of tests
+# is repeatable.
+#
+expr {srand(1234)}
+
+# Run these tests for all number of dimensions between 1 and 5.
+#
+for {set nDim 1} {$nDim<=5} {incr nDim} {
+
+  # Construct an rtree virtual table and an ordinary btree table
+  # to mirror it.  The ordinary table should be much slower (since
+  # it has to do a full table scan) but should give the exact same
+  # answers.
+  #
+  do_test rtree4-$nDim.1 {
+    set clist {}
+    set cklist {}
+    for {set i 0} {$i<$nDim} {incr i} {
+      lappend clist mn$i mx$i
+      lappend cklist "mn$i<mx$i"
+    }
+    db eval "DROP TABLE IF EXISTS rx"
+    db eval "DROP TABLE IF EXISTS bx"
+    db eval "CREATE VIRTUAL TABLE rx USING rtree(id, [join $clist ,])"
+    db eval "CREATE TABLE bx(id INTEGER PRIMARY KEY,\
+                [join $clist ,], CHECK( [join $cklist { AND }] ))"
+  } {}
+
+  # Do many insertions of small objects.  Do both overlapping and
+  # contained-within queries after each insert to verify that all
+  # is well.
+  #
+  unset -nocomplain where
+  for {set i 1} {$i<$::NROW} {incr i} {
+    # Do a random insert
+    #
+    do_test rtree4-$nDim.2.$i.1 {
+      set vlist {}
+      for {set j 0} {$j<$nDim} {incr j} {
+        set mn [rand 10000]
+        set mx [expr {$mn+[randincr 50]}]
+        lappend vlist $mn $mx
+      }
+      db eval "INSERT INTO rx VALUES(NULL, [join $vlist ,])"
+      db eval "INSERT INTO bx VALUES(NULL, [join $vlist ,])"
+    } {}
+
+    # Do a contained-in query on all dimensions
+    #
+    set where {}
+    for {set j 0} {$j<$nDim} {incr j} {
+      set mn [rand 10000]
+      set mx [expr {$mn+[randincr 500]}]
+      lappend where mn$j>=$mn mx$j<=$mx
+    }
+    set where "WHERE [join $where { AND }]"
+    do_test rtree4-$nDim.2.$i.2 {
+      list $where [db eval "SELECT id FROM rx $where ORDER BY id"]
+    } [list $where [db eval "SELECT id FROM bx $where ORDER BY id"]]
+
+    # Do an overlaps query on all dimensions
+    #
+    set where {}
+    for {set j 0} {$j<$nDim} {incr j} {
+      set mn [rand 10000]
+      set mx [expr {$mn+[randincr 500]}]
+      lappend where mx$j>=$mn mn$j<=$mx
+    }
+    set where "WHERE [join $where { AND }]"
+    do_test rtree4-$nDim.2.$i.3 {
+      list $where [db eval "SELECT id FROM rx $where ORDER BY id"]
+    } [list $where [db eval "SELECT id FROM bx $where ORDER BY id"]]
+
+    # Do a contained-in query with surplus contraints at the beginning.
+    # This should force a full-table scan on the rtree.
+    #
+    set where {}
+    for {set j 0} {$j<$nDim} {incr j} {
+      lappend where mn$j>-10000 mx$j<10000
+    }
+    for {set j 0} {$j<$nDim} {incr j} {
+      set mn [rand 10000]
+      set mx [expr {$mn+[randincr 500]}]
+      lappend where mn$j>=$mn mx$j<=$mx
+    }
+    set where "WHERE [join $where { AND }]"
+    do_test rtree4-$nDim.2.$i.3 {
+      list $where [db eval "SELECT id FROM rx $where ORDER BY id"]
+    } [list $where [db eval "SELECT id FROM bx $where ORDER BY id"]]
+
+    # Do an overlaps query with surplus contraints at the beginning.
+    # This should force a full-table scan on the rtree.
+    #
+    set where {}
+    for {set j 0} {$j<$nDim} {incr j} {
+      lappend where mn$j>=-10000 mx$j<=10000
+    }
+    for {set j 0} {$j<$nDim} {incr j} {
+      set mn [rand 10000]
+      set mx [expr {$mn+[randincr 500]}]
+      lappend where mx$j>$mn mn$j<$mx
+    }
+    set where "WHERE [join $where { AND }]"
+    do_test rtree4-$nDim.2.$i.4 {
+      list $where [db eval "SELECT id FROM rx $where ORDER BY id"]
+    } [list $where [db eval "SELECT id FROM bx $where ORDER BY id"]]
+
+    # Do a contained-in query with surplus contraints at the end
+    #
+    set where {}
+    for {set j 0} {$j<$nDim} {incr j} {
+      set mn [rand 10000]
+      set mx [expr {$mn+[randincr 500]}]
+      lappend where mn$j>=$mn mx$j<$mx
+    }
+    for {set j [expr {$nDim-1}]} {$j>=0} {incr j -1} {
+      lappend where mn$j>=-10000 mx$j<10000
+    }
+    set where "WHERE [join $where { AND }]"
+    do_test rtree4-$nDim.2.$i.5 {
+      list $where [db eval "SELECT id FROM rx $where ORDER BY id"]
+    } [list $where [db eval "SELECT id FROM bx $where ORDER BY id"]]
+
+    # Do an overlaps query with surplus contraints at the end
+    #
+    set where {}
+    for {set j [expr {$nDim-1}]} {$j>=0} {incr j -1} {
+      set mn [rand 10000]
+      set mx [expr {$mn+[randincr 500]}]
+      lappend where mx$j>$mn mn$j<=$mx
+    }
+    for {set j 0} {$j<$nDim} {incr j} {
+      lappend where mx$j>-10000 mn$j<=10000
+    }
+    set where "WHERE [join $where { AND }]"
+    do_test rtree4-$nDim.2.$i.6 {
+      list $where [db eval "SELECT id FROM rx $where ORDER BY id"]
+    } [list $where [db eval "SELECT id FROM bx $where ORDER BY id"]]
+
+    # Do a contained-in query with surplus contraints where the 
+    # constraints appear in a random order.
+    #
+    set where {}
+    for {set j 0} {$j<$nDim} {incr j} {
+      set mn1 [rand 10000]
+      set mn2 [expr {$mn1+[randincr 100]}]
+      set mx1 [expr {$mn2+[randincr 400]}]
+      set mx2 [expr {$mx1+[randincr 100]}]
+      lappend where mn$j>=$mn1 mn$j>$mn2 mx$j<$mx1 mx$j<=$mx2
+    }
+    set where "WHERE [join [scramble $where] { AND }]"
+    do_test rtree4-$nDim.2.$i.7 {
+      list $where [db eval "SELECT id FROM rx $where ORDER BY id"]
+    } [list $where [db eval "SELECT id FROM bx $where ORDER BY id"]]
+
+    # Do an overlaps query with surplus contraints where the
+    # constraints appear in a random order.
+    #
+    set where {}
+    for {set j 0} {$j<$nDim} {incr j} {
+      set mn1 [rand 10000]
+      set mn2 [expr {$mn1+[randincr 100]}]
+      set mx1 [expr {$mn2+[randincr 400]}]
+      set mx2 [expr {$mx1+[randincr 100]}]
+      lappend where mx$j>=$mn1 mx$j>$mn2 mn$j<$mx1 mn$j<=$mx2
+    }
+    set where "WHERE [join [scramble $where] { AND }]"
+    do_test rtree4-$nDim.2.$i.8 {
+      list $where [db eval "SELECT id FROM rx $where ORDER BY id"]
+    } [list $where [db eval "SELECT id FROM bx $where ORDER BY id"]]
+  }
+
+  do_rtree_integrity_test rtree4-$nDim.3 rx
+}
+
+expand_all_sql db
+finish_test
diff --git a/ext/rtree/rtree5.test b/ext/rtree/rtree5.test
new file mode 100644
index 0000000000000000000000000000000000000000..92bb6905c7e9dfb57262a1762aede055cdd4c332
--- /dev/null
+++ b/ext/rtree/rtree5.test
@@ -0,0 +1,83 @@
+# 2008 Jul 14
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# The focus of this file is testing the r-tree extension when it is
+# configured to store values as 32 bit integers.
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] rtree_util.tcl]
+source $testdir/tester.tcl
+
+ifcapable !rtree {
+  finish_test
+  return
+}
+
+do_test rtree5-1.0 {
+  execsql { CREATE VIRTUAL TABLE t1 USING rtree_i32(id, x1, x2, y1, y2) }
+} {}
+do_test rtree5-1.1 {
+  execsql { INSERT INTO t1 VALUES(1, 5, 10, 4, 11.2) }
+} {}
+do_test rtree5-1.2 { 
+  execsql { SELECT * FROM t1 }
+} {1 5 10 4 11}
+do_test rtree5-1.3 { 
+  execsql { SELECT typeof(x1) FROM t1 }
+} {integer}
+
+do_test rtree5-1.4 { 
+  execsql { SELECT x1==5 FROM t1 }
+} {1}
+do_test rtree5-1.5 { 
+  execsql { SELECT x1==5.2 FROM t1 }
+} {0}
+do_test rtree5-1.6 { 
+  execsql { SELECT x1==5.0 FROM t1 }
+} {1}
+
+do_test rtree5-1.7 { 
+  execsql { SELECT count(*) FROM t1 WHERE x1==5 }
+} {1}
+ifcapable !rtree_int_only {
+  do_test rtree5-1.8 { 
+    execsql { SELECT count(*) FROM t1 WHERE x1==5.2 }
+  } {0}
+}
+do_test rtree5-1.9 { 
+  execsql { SELECT count(*) FROM t1 WHERE x1==5.0 }
+} {1}
+
+do_test rtree5-1.10 { 
+  execsql { SELECT (1<<31)-5, (1<<31)-1, -1*(1<<31), -1*(1<<31)+5 }
+} {2147483643 2147483647 -2147483648 -2147483643}
+do_test rtree5-1.11 { 
+  execsql { 
+    INSERT INTO t1 VALUES(2, (1<<31)-5, (1<<31)-1, -1*(1<<31), -1*(1<<31)+5) 
+  }
+} {}
+do_test rtree5-1.12 { 
+  execsql { SELECT * FROM t1 WHERE id=2 }
+} {2 2147483643 2147483647 -2147483648 -2147483643}
+do_test rtree5-1.13 { 
+  execsql { 
+    SELECT * FROM t1 WHERE 
+        x1=2147483643 AND x2=2147483647 AND 
+        y1=-2147483648 AND y2=-2147483643
+  }
+} {2 2147483643 2147483647 -2147483648 -2147483643}
+do_rtree_integrity_test rtree5-1.14 t1
+
+expand_all_sql db
+finish_test
diff --git a/ext/rtree/rtree6.test b/ext/rtree/rtree6.test
new file mode 100644
index 0000000000000000000000000000000000000000..1cbb2c6e87e66971fb84d0fc1a61fdba7f536545
--- /dev/null
+++ b/ext/rtree/rtree6.test
@@ -0,0 +1,183 @@
+# 2008 Sep 1
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source $testdir/tester.tcl
+set testprefix rtree6
+
+ifcapable {!rtree || rtree_int_only} {
+  finish_test
+  return
+}
+
+#   Operator    Byte Value
+#   ----------------------
+#      =        0x41 ('A')
+#     <=        0x42 ('B')
+#      <        0x43 ('C')
+#     >=        0x44 ('D')
+#      >        0x45 ('E')
+#   ----------------------
+
+proc rtree_strategy {sql} {
+  set ret [list]
+  db eval "explain $sql" a {
+    if {$a(opcode) eq "VFilter"} {
+      lappend ret $a(p4)
+    }
+  }
+  set ret
+}
+
+proc query_plan {sql} {
+  set ret [list]
+  db eval "explain query plan $sql" a {
+    lappend ret $a(detail)
+  }
+  set ret
+}
+
+do_test rtree6-1.1 {
+  execsql {
+    CREATE TABLE t2(k INTEGER PRIMARY KEY, v);
+    CREATE VIRTUAL TABLE t1 USING rtree(ii, x1, x2, y1, y2);
+  }
+} {}
+
+do_test rtree6-1.2 {
+  rtree_strategy {SELECT * FROM t1 WHERE x1>10}
+} {E0}
+do_test rtree6-1.2.1 {
+  rtree_strategy {SELECT * FROM t1 WHERE x1>10 AND x2 LIKE '%x%'}
+} {E0}
+
+do_test rtree6-1.3 {
+  rtree_strategy {SELECT * FROM t1 WHERE x1<10}
+} {C0}
+
+do_test rtree6-1.4 {
+  rtree_strategy {SELECT * FROM t1,t2 WHERE k=ii AND x1<10}
+} {C0}
+
+do_test rtree6-1.5 {
+  rtree_strategy {SELECT * FROM t1,t2 WHERE k=+ii AND x1<10}
+} {C0}
+
+do_eqp_test rtree6.2.1 {
+  SELECT * FROM t1,t2 WHERE k=+ii AND x1<10
+} {
+  QUERY PLAN
+  |--SCAN t1 VIRTUAL TABLE INDEX 2:C0
+  `--SEARCH t2 USING INTEGER PRIMARY KEY (rowid=?)
+}
+
+do_eqp_test rtree6.2.2 {
+  SELECT * FROM t1,t2 WHERE k=ii AND x1<10
+} {
+  QUERY PLAN
+  |--SCAN t1 VIRTUAL TABLE INDEX 2:C0
+  `--SEARCH t2 USING INTEGER PRIMARY KEY (rowid=?)
+}
+
+do_eqp_test rtree6.2.3 {
+  SELECT * FROM t1,t2 WHERE k=ii
+} {
+  QUERY PLAN
+  |--SCAN t1 VIRTUAL TABLE INDEX 2:
+  `--SEARCH t2 USING INTEGER PRIMARY KEY (rowid=?)
+}
+
+do_eqp_test rtree6.2.4.1 {
+  SELECT * FROM t1,t2 WHERE v=+ii and x1<10 and x2>10
+} {
+  QUERY PLAN
+  |--SCAN t1 VIRTUAL TABLE INDEX 2:C0E1
+  |--BLOOM FILTER ON t2 (v=?)
+  `--SEARCH t2 USING AUTOMATIC COVERING INDEX (v=?)
+}
+do_eqp_test rtree6.2.4.2 {
+  SELECT * FROM t1,t2 WHERE v=10 and x1<10 and x2>10
+} {
+  QUERY PLAN
+  |--SCAN t1 VIRTUAL TABLE INDEX 2:C0E1
+  |--BLOOM FILTER ON t2 (v=?)
+  `--SEARCH t2 USING AUTOMATIC PARTIAL COVERING INDEX (v=?)
+}
+
+do_eqp_test rtree6.2.5 {
+  SELECT * FROM t1,t2 WHERE k=ii AND x1<v
+} {
+  QUERY PLAN
+  |--SCAN t1 VIRTUAL TABLE INDEX 2:
+  `--SEARCH t2 USING INTEGER PRIMARY KEY (rowid=?)
+}
+
+do_execsql_test rtree6-3.1 {
+  CREATE VIRTUAL TABLE t3 USING rtree(id, x1, x2, y1, y2);
+  INSERT INTO t3 VALUES(NULL, 1, 1, 2, 2);
+  SELECT * FROM t3 WHERE 
+    x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND 
+    x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND 
+    x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND 
+    x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND 
+    x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND 
+    x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5;
+} {1 1.0 1.0 2.0 2.0}
+
+do_test rtree6.3.2 {
+  rtree_strategy {
+    SELECT * FROM t3 WHERE 
+      x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND 
+      x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND 
+      x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND 
+      x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 
+  }
+} {E0E0E0E0E0E0E0E0E0E0E0E0E0E0E0E0E0E0E0E0}
+do_test rtree6.3.3 {
+  rtree_strategy {
+    SELECT * FROM t3 WHERE 
+      x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND 
+      x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND 
+      x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND 
+      x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND 
+      x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND 
+      x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5
+  }
+} {E0E0E0E0E0E0E0E0E0E0E0E0E0E0E0E0E0E0E0E0}
+
+do_execsql_test rtree6-3.4 {
+  SELECT * FROM t3 WHERE x1>0.5 AND x1>0.8 AND x1>1.1
+} {}
+do_execsql_test rtree6-3.5 {
+  SELECT * FROM t3 WHERE 
+    x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND 
+    x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND 
+    x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND 
+    x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND 
+    x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND 
+    x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>0.5 AND x1>1.1
+} {}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE t1 USING rtree(id,x0,x1,y0,y1);
+}
+do_execsql_test 4.1 {
+  DELETE FROM t1 WHERE x0>1 AND x1<2 OR y0<92;
+}
+
+expand_all_sql db
+finish_test
diff --git a/ext/rtree/rtree7.test b/ext/rtree/rtree7.test
new file mode 100644
index 0000000000000000000000000000000000000000..1556179c4f52c6413458d60f3db90ac5276b2c72
--- /dev/null
+++ b/ext/rtree/rtree7.test
@@ -0,0 +1,73 @@
+# 2010 February 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+# Test that nothing goes wrong if an rtree table is created, then the
+# database page-size is modified. At one point (3.6.22), this was causing
+# malfunctions.
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] rtree_util.tcl]
+source $testdir/tester.tcl
+
+ifcapable !rtree||!vacuum {
+  finish_test
+  return
+}
+
+# Like execsql except display output as integer where that can be
+# done without loss of information.
+#
+proc execsql_intout {sql} {
+  set out {}
+  foreach term [execsql $sql] {
+    regsub {\.0$} $term {} term
+    lappend out $term
+  }
+  return $out
+}
+
+do_test rtree7-1.1 {
+  execsql {
+    PRAGMA page_size = 1024;
+    CREATE VIRTUAL TABLE rt USING rtree(id, x1, x2, y1, y2);
+    INSERT INTO rt VALUES(1, 1, 2, 3, 4);
+  }
+} {}
+do_test rtree7-1.2 {
+  execsql_intout { SELECT * FROM rt }
+} {1 1 2 3 4}
+do_test rtree7-1.3 {
+  execsql_intout { 
+    PRAGMA page_size = 2048;
+    VACUUM;
+    SELECT * FROM rt;
+  }
+} {1 1 2 3 4}
+do_test rtree7-1.4 {
+  for {set i 2} {$i <= 51} {incr i} {
+    execsql { INSERT INTO rt VALUES($i, 1, 2, 3, 4) }
+  }
+  execsql_intout { SELECT sum(x1), sum(x2), sum(y1), sum(y2) FROM rt }
+} {51 102 153 204}
+do_test rtree7-1.5 {
+  execsql_intout { 
+    PRAGMA page_size = 512;
+    VACUUM;
+    SELECT sum(x1), sum(x2), sum(y1), sum(y2) FROM rt
+  }
+} {51 102 153 204}
+
+do_rtree_integrity_test rtree7-1.6 rt
+
+finish_test
diff --git a/ext/rtree/rtree8.test b/ext/rtree/rtree8.test
new file mode 100644
index 0000000000000000000000000000000000000000..51bd4041646dfe806c52cfb6398cddfd678bbb93
--- /dev/null
+++ b/ext/rtree/rtree8.test
@@ -0,0 +1,209 @@
+# 2010 February 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] rtree_util.tcl]
+source $testdir/tester.tcl
+ifcapable !rtree { finish_test ; return }
+
+#-------------------------------------------------------------------------
+# The following block of tests - rtree8-1.* - feature reading and writing
+# an r-tree table while there exist open cursors on it.
+#
+proc populate_t1 {n} {
+  execsql { DELETE FROM t1 }
+  for {set i 1} {$i <= $n} {incr i} {
+    execsql { INSERT INTO t1 VALUES($i, $i, $i+2) }
+  }
+}
+
+# A DELETE while a cursor is reading the table.
+#
+do_test rtree8-1.1.1 {
+  execsql { PRAGMA page_size = 512 }
+  execsql { CREATE VIRTUAL TABLE t1 USING rtree_i32(id, x1, x2) }
+  populate_t1 5
+} {}
+do_test rtree8-1.1.2 {
+  set res [list]
+  set rc [catch {
+    db eval { SELECT * FROM t1 } { 
+      lappend res $x1 $x2
+      if {$id==3} { db eval { DELETE FROM t1 WHERE id>3 } }
+    }
+  } msg];
+  lappend rc $msg
+  set rc
+} {1 {database table is locked}}
+do_test rtree8-1.1.2b {
+  db eval { SELECT * FROM t1 ORDER BY +id } { 
+    if {$id==3} { db eval { DELETE FROM t1 WHERE id>3 } }
+  }
+  db eval {SELECT x1, x2 FROM t1}
+} {1 3 2 4 3 5}
+do_test rtree8-1.1.3 {
+  execsql { SELECT * FROM t1 }
+} {1 1 3 2 2 4 3 3 5}
+
+# Many SELECTs on the same small table.
+#
+proc nested_select {n} {
+  set ::max $n
+  db eval { SELECT * FROM t1 } {
+    if {$id == $n} { nested_select [expr $n+1] }
+  }
+  return $::max
+}
+do_test rtree8-1.2.1 { populate_t1 50  } {}
+do_test rtree8-1.2.2 { nested_select 1 } {51}
+
+# This test runs many SELECT queries simultaneously against a large 
+# table, causing a collision in the hash-table used to store r-tree 
+# nodes internally.
+#
+populate_t1 1500
+do_rtree_integrity_test rtree8-1.3.0 t1
+do_execsql_test rtree8-1.3.1 { SELECT max(nodeno) FROM t1_node } {183}
+do_test rtree8-1.3.2 {
+  set rowids [execsql {SELECT min(rowid) FROM t1_rowid GROUP BY nodeno}]
+  set stmt_list [list]
+  foreach row $rowids {
+    set stmt [sqlite3_prepare db "SELECT * FROM t1 WHERE id = $row" -1 tail]
+    sqlite3_step $stmt
+    lappend res_list [sqlite3_column_int $stmt 0]
+    lappend stmt_list $stmt 
+  }
+} {}
+do_test rtree8-1.3.3 { set res_list } $rowids
+do_execsql_test rtree8-1.3.4 { SELECT count(*) FROM t1 } {1500}
+do_test rtree8-1.3.5 { 
+  foreach stmt $stmt_list { sqlite3_finalize $stmt }
+} {}
+
+
+#-------------------------------------------------------------------------
+# The following block of tests - rtree8-2.* - test a couple of database
+# corruption cases. In this case things are not corrupted at the b-tree
+# level, but the contents of the various tables used internally by an
+# r-tree table are inconsistent.
+#
+populate_t1 50
+do_execsql_test rtree8-2.1.1 { SELECT max(nodeno) FROM t1_node } {5}
+sqlite3_db_config db DEFENSIVE 0
+do_execsql_test rtree8-2.1.2 { DELETE FROM t1_node } {}
+for {set i 1} {$i <= 50} {incr i} {
+  do_catchsql_test rtree8-2.1.3.$i { 
+    SELECT * FROM t1 WHERE id = $i 
+  } {1 {database disk image is malformed}}
+}
+do_catchsql_test rtree8-2.1.4 { 
+  SELECT * FROM t1
+} {1 {database disk image is malformed}}
+do_catchsql_test rtree8-2.1.5 { 
+  DELETE FROM t1
+} {1 {database disk image is malformed}}
+
+do_execsql_test rtree8-2.1.6 { 
+  DROP TABLE t1;
+  CREATE VIRTUAL TABLE t1 USING rtree_i32(id, x1, x2);
+} {}
+
+
+populate_t1 50
+sqlite3_db_config db DEFENSIVE 0
+do_execsql_test rtree8-2.2.1 {
+  DELETE FROM t1_parent
+} {}
+do_catchsql_test rtree8-2.2.2 {
+  DELETE FROM t1 WHERE id=25
+} {1 {database disk image is malformed}}
+do_execsql_test rtree8-2.2.3 { 
+  DROP TABLE t1;
+  CREATE VIRTUAL TABLE t1 USING rtree_i32(id, x1, x2);
+} {}
+
+
+#-------------------------------------------------------------------------
+# Test that trying to use the MATCH operator with the r-tree module does
+# not confuse it. 
+#
+populate_t1 10
+do_catchsql_test rtree8-3.1 { 
+  SELECT * FROM t1 WHERE x1 MATCH '1234'
+} {1 {SQL logic error}}
+
+#-------------------------------------------------------------------------
+# Test a couple of invalid arguments to rtreedepth().
+#
+do_catchsql_test rtree8-4.1 {
+  SELECT rtreedepth('hello world')
+} {1 {Invalid argument to rtreedepth()}}
+do_catchsql_test rtree8-4.2 {
+  SELECT rtreedepth(X'00')
+} {1 {Invalid argument to rtreedepth()}}
+
+
+#-------------------------------------------------------------------------
+# Delete half of a lopsided tree.
+#
+do_execsql_test rtree8-5.1 { 
+  CREATE VIRTUAL TABLE t2 USING rtree_i32(id, x1, x2) 
+} {}
+do_test rtree8-5.2 {
+  execsql BEGIN
+  for {set i 0} {$i < 100} {incr i} {
+    execsql { INSERT INTO t2 VALUES($i, 100, 101) }
+  }
+  for {set i 100} {$i < 200} {incr i} {
+    execsql { INSERT INTO t2 VALUES($i, 1000, 1001) }
+  }
+  execsql COMMIT
+} {}
+do_rtree_integrity_test rtree8-5.3 t2
+do_test rtree8-5.4 {
+  execsql BEGIN
+  for {set i 0} {$i < 200} {incr i} {
+    execsql { DELETE FROM t2 WHERE id = $i }
+  }
+  execsql COMMIT
+} {}
+do_rtree_integrity_test rtree8-5.5 t2
+
+# 2018-05-24
+# The following script caused an assertion fault and/or segfault
+# prior to the fix that prevents simultaneous reads and writes on
+# the same rtree virtual table.
+#
+do_test rtree8-6.1 {
+  db close
+  sqlite3 db :memory:
+  db eval {
+    PRAGMA page_size=512;
+    CREATE VIRTUAL TABLE t1 USING rtree(id,x1,x2,y1,y2);
+    WITH RECURSIVE c(x) AS (VALUES(0) UNION ALL SELECT x+1 FROM c WHERE x<49)
+    INSERT INTO t1 SELECT x, x, x+1, x, x+1 FROM c;
+  }
+  set rc [catch {
+    db eval {SELECT id FROM t1} x {
+      db eval {DELETE FROM t1 WHERE id=$x(id)}
+    }
+  } msg]
+  lappend rc $msg
+} {1 {database table is locked}}
+
+
+
+
+finish_test
diff --git a/ext/rtree/rtree9.test b/ext/rtree/rtree9.test
new file mode 100644
index 0000000000000000000000000000000000000000..f39a82e5821abfcf3d161709cae58e2d6525eaaa
--- /dev/null
+++ b/ext/rtree/rtree9.test
@@ -0,0 +1,129 @@
+# 2010 August 28
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file contains tests for the r-tree module. Specifically, it tests
+# that custom r-tree queries (geometry callbacks) work.
+# 
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] rtree_util.tcl]
+source $testdir/tester.tcl
+ifcapable !rtree { finish_test ; return }
+ifcapable rtree_int_only { finish_test; return }
+
+register_cube_geom db
+
+do_execsql_test rtree9-1.1 {
+  CREATE VIRTUAL TABLE rt USING rtree(id, x1, x2, y1, y2, z1, z2);
+  INSERT INTO rt VALUES(1, 1, 2, 1, 2, 1, 2);
+} {}
+do_execsql_test rtree9-1.2 {
+  SELECT * FROM rt WHERE id MATCH cube(0, 0, 0, 2, 2, 2);
+} {1 1.0 2.0 1.0 2.0 1.0 2.0}
+do_execsql_test rtree9-1.3 {
+  SELECT * FROM rt WHERE id MATCH cube(3, 3, 3, 2, 2, 2);
+} {}
+do_execsql_test rtree9-1.4 {
+  DELETE FROM rt;
+} {}
+
+unset -nocomplain x
+for {set i 0} {$i < 1000} {incr i} {
+  set x [expr $i%10]
+  set y [expr ($i/10)%10]
+  set z [expr ($i/100)%10]
+  execsql { INSERT INTO rt VALUES($i, $x, $x+1, $y, $y+1, $z, $z+1) }
+}
+do_rtree_integrity_test rtree9-2.0 rt
+do_execsql_test rtree9-2.1 {
+  SELECT id FROM rt WHERE id MATCH cube(2.5, 2.5, 2.5, 1, 1, 1) ORDER BY id;
+} {222 223 232 233 322 323 332 333}
+do_execsql_test rtree9-2.2 {
+  SELECT id FROM rt WHERE id MATCH cube(5.5, 5.5, 5.5, 1, 1, 1) ORDER BY id;
+} {555 556 565 566 655 656 665 666}
+
+
+do_execsql_test rtree9-3.0 {
+  CREATE VIRTUAL TABLE rt32 USING rtree_i32(id, x1, x2, y1, y2, z1, z2);
+} {} 
+for {set i 0} {$i < 1000} {incr i} {
+  set x [expr $i%10]
+  set y [expr ($i/10)%10]
+  set z [expr ($i/100)%10]
+  execsql { INSERT INTO rt32 VALUES($i, $x, $x+1, $y, $y+1, $z, $z+1) }
+}
+do_rtree_integrity_test rtree9-3.1 rt32
+do_execsql_test rtree9-3.2 {
+  SELECT id FROM rt32 WHERE id MATCH cube(3, 3, 3, 1, 1, 1) ORDER BY id;
+} {222 223 224 232 233 234 242 243 244 322 323 324 332 333 334 342 343 344 422 423 424 432 433 434 442 443 444}
+do_execsql_test rtree9-3.3 {
+  SELECT id FROM rt32 WHERE id MATCH cube(5.5, 5.5, 5.5, 1, 1, 1) ORDER BY id;
+} {555 556 565 566 655 656 665 666}
+
+
+do_catchsql_test rtree9-4.1 {
+  SELECT id FROM rt32 WHERE id MATCH cube(5.5, 5.5, 1, 1, 1) ORDER BY id;
+} {1 {SQL logic error}}
+for {set x 2} {$x<200} {incr x 2} {
+  do_catchsql_test rtree9-4.2.[expr $x/2] {
+    SELECT id FROM rt WHERE id MATCH randomblob($x)
+  } {1 {SQL logic error}}
+}
+do_catchsql_test rtree9-4.3 {
+  SELECT id FROM rt WHERE id MATCH CAST( 
+    (cube(5.5, 5.5, 5.5, 1, 1, 1) || X'1234567812345678') AS blob 
+  )
+} {1 {SQL logic error}}
+
+
+#-------------------------------------------------------------------------
+# Test the example 2d "circle" geometry callback.
+#
+register_circle_geom db
+
+do_execsql_test rtree9-5.1 {
+  CREATE VIRTUAL TABLE rt2 USING rtree(id, xmin, xmax, ymin, ymax);
+
+  INSERT INTO rt2 VALUES(1,    1,   2,  1,  2);
+  INSERT INTO rt2 VALUES(2,    1,   2, -2, -1);
+  INSERT INTO rt2 VALUES(3,    -2, -1, -2, -1);
+  INSERT INTO rt2 VALUES(4,    -2, -1,  1,  2);
+
+  INSERT INTO rt2 VALUES(5,    2,   3,  2,  3);
+  INSERT INTO rt2 VALUES(6,    2,   3, -3, -2);
+  INSERT INTO rt2 VALUES(7,    -3, -2, -3, -2);
+  INSERT INTO rt2 VALUES(8,    -3, -2,  2,  3);
+
+  INSERT INTO rt2 VALUES(9,    1.8,   3,  1.8,  3);
+  INSERT INTO rt2 VALUES(10,   1.8,   3, -3, -1.8);
+  INSERT INTO rt2 VALUES(11,   -3, -1.8, -3, -1.8);
+  INSERT INTO rt2 VALUES(12,   -3, -1.8,  1.8,  3);
+
+  INSERT INTO rt2 VALUES(13,   -15, 15, 1.8, 2.2);
+  INSERT INTO rt2 VALUES(14,   -15, 15, -2.2, -1.8);
+  INSERT INTO rt2 VALUES(15,   1.8, 2.2, -15, 15);
+  INSERT INTO rt2 VALUES(16,   -2.2, -1.8, -15, 15);
+
+  INSERT INTO rt2 VALUES(17,   -100, 100, -100, 100);
+} {}
+
+do_execsql_test rtree9-5.2 {
+  SELECT id FROM rt2 WHERE id MATCH circle(0.0, 0.0, 2.0);
+} {1 2 3 4 13 14 15 16 17}
+
+do_execsql_test rtree9-5.3 {
+  UPDATE rt2 SET xmin=xmin+5, ymin=ymin+5, xmax=xmax+5, ymax=ymax+5;
+  SELECT id FROM rt2 WHERE id MATCH circle(5.0, 5.0, 2.0);
+} {1 2 3 4 13 14 15 16 17}
+do_rtree_integrity_test rtree9-5.4 rt2
+
+finish_test
diff --git a/ext/rtree/rtreeA.test b/ext/rtree/rtreeA.test
new file mode 100644
index 0000000000000000000000000000000000000000..0b52070c42fcc7c3a87b05f42f44e128018e51e2
--- /dev/null
+++ b/ext/rtree/rtreeA.test
@@ -0,0 +1,262 @@
+# 2010 September 22
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file contains tests for the r-tree module. Specifically, it tests
+# that corrupt or inconsistent databases do not cause crashes in the r-tree
+# module.
+# 
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source $testdir/tester.tcl
+ifcapable !rtree { finish_test ; return }
+
+proc create_t1 {} {
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+  execsql {
+    PRAGMA page_size = 1024;
+    CREATE VIRTUAL TABLE t1 USING rtree(id, x1, x2, y1, y2);
+  }
+}
+proc populate_t1 {} {
+  execsql BEGIN
+  for {set i 0} {$i < 500} {incr i} {
+    set x2 [expr $i+5]
+    set y2 [expr $i+5]
+    execsql { INSERT INTO t1 VALUES($i, $i, $x2, $i, $y2) }
+  }
+  execsql COMMIT
+  sqlite3_db_config db DEFENSIVE 0
+}
+
+proc truncate_node {nodeno nTrunc} {
+  set blob [db one {SELECT data FROM t1_node WHERE nodeno=$nodeno}]
+  if {$nTrunc<0} {set nTrunc "end-$nTrunc"}
+  set blob [string range $blob 0 $nTrunc]
+  db eval { UPDATE t1_node SET data = $blob WHERE nodeno=$nodeno }
+}
+
+proc set_tree_depth {tbl {newvalue ""}} {
+  set blob [db one "SELECT data FROM ${tbl}_node WHERE nodeno=1"]
+
+  if {$newvalue == ""} {
+    binary scan $blob Su oldvalue
+    return $oldvalue
+  }
+
+  set blob [binary format Sua* $newvalue [string range $blob 2 end]]
+  db eval "UPDATE ${tbl}_node SET data = \$blob WHERE nodeno=1"
+  return [set_tree_depth $tbl]
+}
+
+proc set_entry_count {tbl nodeno {newvalue ""}} {
+  set blob [db one "SELECT data FROM ${tbl}_node WHERE nodeno=$nodeno"]
+
+  if {$newvalue == ""} {
+    binary scan [string range $blob 2 end] Su oldvalue
+    return $oldvalue
+  }
+
+  set blob [binary format a*Sua* \
+    [string range $blob 0 1] $newvalue [string range $blob 4 end]
+  ]
+  db eval "UPDATE ${tbl}_node SET data = \$blob WHERE nodeno=$nodeno"
+  return [set_entry_count $tbl $nodeno]
+}
+
+
+proc do_corruption_tests {prefix args} {
+  set testarray [lindex $args end]
+  set errormsg {database disk image is malformed}
+
+  foreach {z value} [lrange $args 0 end-1] {
+    set n [string length $z]
+    if {$n>=2 && [string equal -length $n $z "-error"]} {
+      set errormsg $value
+    }
+  }
+
+  foreach {tn sql} $testarray {
+    do_catchsql_test $prefix.$tn $sql [list 1 $errormsg]
+  }
+}
+
+#-------------------------------------------------------------------------
+# Test the libraries response if the %_node table is completely empty
+# (i.e. the root node is missing), or has been removed from the database
+# entirely.
+#
+create_t1
+populate_t1
+do_execsql_test rtreeA-1.0 {
+  DELETE FROM t1_node;
+} {}
+
+do_corruption_tests rtreeA-1.1 {
+  1   "SELECT * FROM t1"
+  2   "SELECT * FROM t1 WHERE rowid=5"
+  3   "INSERT INTO t1 VALUES(1000, 1, 2, 3, 4)"
+  4   "SELECT * FROM t1 WHERE x1<10 AND x2>12"
+}
+
+do_execsql_test rtreeA-1.1.1 {
+  SELECT rtreecheck('main', 't1')
+} {{Node 1 missing from database
+Wrong number of entries in %_rowid table - expected 0, actual 500
+Wrong number of entries in %_parent table - expected 0, actual 25}}
+
+do_execsql_test  rtreeA-1.2.0 { DROP TABLE t1_node } {}
+do_corruption_tests rtreeA-1.2 -error "database disk image is malformed" {
+  1   "SELECT * FROM t1"
+  2   "SELECT * FROM t1 WHERE rowid=5"
+  3   "INSERT INTO t1 VALUES(1000, 1, 2, 3, 4)"
+  4   "SELECT * FROM t1 WHERE x1<10 AND x2>12"
+}
+
+#-------------------------------------------------------------------------
+# Test the libraries response if some of the entries in the %_node table 
+# are the wrong size.
+#
+create_t1
+populate_t1
+do_test rtreeA-2.1.0 {
+  set nodes [db eval {select nodeno FROM t1_node}]
+  foreach {a b c} $nodes { truncate_node $c 200 }
+} {}
+do_corruption_tests rtreeA-2.1 {
+  1   "SELECT * FROM t1"
+  2   "SELECT * FROM t1 WHERE rowid=5"
+  3   "INSERT INTO t1 VALUES(1000, 1, 2, 3, 4)"
+  4   "SELECT * FROM t1 WHERE x1<10 AND x2>12"
+}
+
+create_t1
+populate_t1
+do_test rtreeA-2.2.0 { truncate_node 1 200 } {}
+do_corruption_tests rtreeA-2.2 {
+  1   "SELECT * FROM t1"
+  2   "SELECT * FROM t1 WHERE +rowid=5"
+  3   "INSERT INTO t1 VALUES(1000, 1, 2, 3, 4)"
+  4   "SELECT * FROM t1 WHERE x1<10 AND x2>12"
+}
+
+#-------------------------------------------------------------------------
+# Set the "depth" of the tree stored on the root node incorrectly. Test
+# that this does not cause any problems.
+#
+create_t1
+populate_t1
+do_test rtreeA-3.1.0.1 { set_tree_depth t1 } {1}
+do_test rtreeA-3.1.0.2 { set_tree_depth t1 3 } {3}
+do_corruption_tests rtreeA-3.1 {
+  1   "SELECT * FROM t1"
+  2   "SELECT * FROM t1 WHERE +rowid=5"
+  3   "INSERT INTO t1 VALUES(1000, 1, 2, 3, 4)"
+}
+
+do_execsql_test rtreeA-3.1.0.3 {
+  SELECT rtreecheck('main', 't1')!='ok'
+} {1}
+
+do_test rtreeA-3.2.0 { set_tree_depth t1 1000 } {1000}
+do_corruption_tests rtreeA-3.2 {
+  1   "SELECT * FROM t1"
+  2   "SELECT * FROM t1 WHERE +rowid=5"
+  3   "INSERT INTO t1 VALUES(1000, 1, 2, 3, 4)"
+}
+
+create_t1
+populate_t1
+do_test rtreeA-3.3.0 { 
+  execsql { DELETE FROM t1 WHERE rowid = 0 }
+  set_tree_depth t1 65535
+} {65535}
+do_corruption_tests rtreeA-3.3 {
+  1   "SELECT * FROM t1"
+  2   "SELECT * FROM t1 WHERE +rowid=5"
+  3   "INSERT INTO t1 VALUES(1000, 1, 2, 3, 4)"
+}
+
+do_execsql_test rtreeA-3.3.3.4 {
+  SELECT rtreecheck('main', 't1')
+} {{Rtree depth out of range (65535)
+Wrong number of entries in %_rowid table - expected 0, actual 499
+Wrong number of entries in %_parent table - expected 0, actual 25}}
+
+#-------------------------------------------------------------------------
+# Set the "number of entries" field on some nodes incorrectly.
+#
+create_t1
+populate_t1
+do_test rtreeA-4.1.0 { 
+  set_entry_count t1 1 4000
+} {4000}
+do_corruption_tests rtreeA-4.1 {
+  1   "SELECT * FROM t1"
+  2   "SELECT * FROM t1 WHERE +rowid=5"
+  3   "INSERT INTO t1 VALUES(1000, 1, 2, 3, 4)"
+  4   "SELECT * FROM t1 WHERE x1<10 AND x2>12"
+}
+
+#-------------------------------------------------------------------------
+# Remove entries from the %_parent table and check that this does not
+# cause a crash.
+#
+create_t1
+populate_t1
+do_execsql_test rtreeA-5.1.0 { DELETE FROM t1_parent } {}
+do_corruption_tests rtreeA-5.1 {
+  1   "DELETE FROM t1 WHERE +rowid = 5"
+  2   "DELETE FROM t1"
+}
+
+do_execsql_test rtreeA-5.2 {
+  SELECT rtreecheck('main', 't1')!='ok'
+} {1}
+
+#-------------------------------------------------------------------------
+# Add some bad entries to the %_parent table.
+#
+create_t1
+populate_t1
+do_execsql_test rtreeA-6.1.0 { 
+  UPDATE t1_parent set parentnode = parentnode+1
+} {}
+do_corruption_tests rtreeA-6.1 {
+  1   "DELETE FROM t1 WHERE rowid = 5"
+  2   "UPDATE t1 SET x1=x1+1, x2=x2+1"
+}
+
+do_execsql_test rtreeA-6.2 {
+  SELECT rtreecheck('main', 't1')!='ok'
+} {1}
+
+#-------------------------------------------------------------------------
+# Truncated blobs in the _node table.
+#
+create_t1
+populate_t1
+sqlite3 db test.db
+sqlite3_db_config db DEFENSIVE 0
+do_execsql_test rtreeA-7.100 { 
+  UPDATE t1_node SET data=x'' WHERE rowid=1;
+} {}
+do_catchsql_test rtreeA-7.110 {
+  SELECT * FROM t1 WHERE x1>0 AND x1<100 AND x2>0 AND x2<100;
+} {1 {undersize RTree blobs in "t1_node"}}
+do_test rtreeA-7.120 {
+  sqlite3_extended_errcode db
+} {SQLITE_CORRUPT_VTAB}
+
+
+finish_test
diff --git a/ext/rtree/rtreeB.test b/ext/rtree/rtreeB.test
new file mode 100644
index 0000000000000000000000000000000000000000..6fc31042ca92d6543a152c5e8d42e77c31a346af
--- /dev/null
+++ b/ext/rtree/rtreeB.test
@@ -0,0 +1,50 @@
+# 2011 March 2
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# Make sure the rtreenode() testing function can handle entries with
+# 64-bit rowids.
+# 
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] rtree_util.tcl]
+source $testdir/tester.tcl
+ifcapable !rtree { finish_test ; return }
+
+ifcapable rtree_int_only {
+  do_test rtreeB-1.1-intonly {
+    db eval {
+      CREATE VIRTUAL TABLE t1 USING rtree(ii, x0, y0, x1, y1);
+      INSERT INTO t1 VALUES(1073741824, 0.0, 0.0, 100.0, 100.0);
+      INSERT INTO t1 VALUES(2147483646, 0.0, 0.0, 200.0, 200.0);
+      INSERT INTO t1 VALUES(4294967296, 0.0, 0.0, 300.0, 300.0);
+      INSERT INTO t1 VALUES(8589934592, 20.0, 20.0, 150.0, 150.0);
+      INSERT INTO t1 VALUES(9223372036854775807, 150, 150, 400, 400);
+      SELECT rtreenode(2, data) FROM t1_node;
+    }
+  } {{{1073741824 0 0 100 100} {2147483646 0 0 200 200} {4294967296 0 0 300 300} {8589934592 20 20 150 150} {9223372036854775807 150 150 400 400}}}
+} else {  
+  do_test rtreeB-1.1 {
+    db eval {
+      CREATE VIRTUAL TABLE t1 USING rtree(ii, x0, y0, x1, y1);
+      INSERT INTO t1 VALUES(1073741824, 0.0, 0.0, 100.0, 100.0);
+      INSERT INTO t1 VALUES(2147483646, 0.0, 0.0, 200.0, 200.0);
+      INSERT INTO t1 VALUES(4294967296, 0.0, 0.0, 300.0, 300.0);
+      INSERT INTO t1 VALUES(8589934592, 20.0, 20.0, 150.0, 150.0);
+      INSERT INTO t1 VALUES(9223372036854775807, 150, 150, 400, 400);
+      SELECT rtreenode(2, data) FROM t1_node;
+    }
+  } {{{1073741824 0 0 100 100} {2147483646 0 0 200 200} {4294967296 0 0 300 300} {8589934592 20 20 150 150} {9223372036854775807 150 150 400 400}}}
+}
+
+do_rtree_integrity_test rtreeB-1.2 t1
+
+finish_test
diff --git a/ext/rtree/rtreeC.test b/ext/rtree/rtreeC.test
new file mode 100644
index 0000000000000000000000000000000000000000..bddc7d3030ebf4fece635924b4360f2c9aaa5340
--- /dev/null
+++ b/ext/rtree/rtreeC.test
@@ -0,0 +1,378 @@
+# 2011 March 2
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# Make sure the rtreenode() testing function can handle entries with
+# 64-bit rowids.
+# 
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] rtree_util.tcl]
+source $testdir/tester.tcl
+ifcapable !rtree { finish_test ; return }
+set testprefix rtreeC
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE r_tree USING rtree(id, min_x, max_x, min_y, max_y);
+  CREATE TABLE t(x, y);
+}
+
+do_eqp_test 1.1 {
+  SELECT * FROM r_tree, t 
+  WHERE t.x>=min_x AND t.x<=max_x AND t.y>=min_y AND t.x<=max_y
+} {
+  QUERY PLAN
+  |--SCAN t
+  `--SCAN r_tree VIRTUAL TABLE INDEX 2:D3B2D1B0
+}
+
+do_eqp_test 1.2 {
+  SELECT * FROM t, r_tree
+  WHERE t.x>=min_x AND t.x<=max_x AND t.y>=min_y AND t.x<=max_y
+} {
+  QUERY PLAN
+  |--SCAN t
+  `--SCAN r_tree VIRTUAL TABLE INDEX 2:D3B2D1B0
+}
+
+do_eqp_test 1.3 {
+  SELECT * FROM t, r_tree
+  WHERE t.x>=min_x AND t.x<=max_x AND t.y>=min_y AND ?<=max_y
+} {
+  QUERY PLAN
+  |--SCAN t
+  `--SCAN r_tree VIRTUAL TABLE INDEX 2:D3B2D1B0
+}
+
+do_eqp_test 1.5 {
+  SELECT * FROM t, r_tree
+} {
+  QUERY PLAN
+  |--SCAN r_tree VIRTUAL TABLE INDEX 2:
+  `--SCAN t
+}
+
+do_execsql_test 2.0 {
+  INSERT INTO t VALUES(0, 0);
+  INSERT INTO t VALUES(0, 1);
+  INSERT INTO t VALUES(0, 2);
+  INSERT INTO t VALUES(0, 3);
+  INSERT INTO t VALUES(0, 4);
+  INSERT INTO t VALUES(0, 5);
+  INSERT INTO t VALUES(0, 6);
+  INSERT INTO t VALUES(0, 7);
+  INSERT INTO t VALUES(0, 8);
+  INSERT INTO t VALUES(0, 9);
+
+  INSERT INTO t SELECT x+1, y FROM t;
+  INSERT INTO t SELECT x+2, y FROM t;
+  INSERT INTO t SELECT x+4, y FROM t;
+  INSERT INTO r_tree SELECT NULL, x-1, x+1, y-1, y+1 FROM t;
+  ANALYZE;
+}
+
+db close
+sqlite3 db test.db
+
+do_eqp_test 2.1 {
+  SELECT * FROM r_tree, t 
+  WHERE t.x>=min_x AND t.x<=max_x AND t.y>=min_y AND t.x<=max_y
+} {
+  QUERY PLAN
+  |--SCAN t
+  `--SCAN r_tree VIRTUAL TABLE INDEX 2:D3B2D1B0
+}
+
+do_eqp_test 2.2 {
+  SELECT * FROM t, r_tree
+  WHERE t.x>=min_x AND t.x<=max_x AND t.y>=min_y AND t.x<=max_y
+} {
+  QUERY PLAN
+  |--SCAN t
+  `--SCAN r_tree VIRTUAL TABLE INDEX 2:D3B2D1B0
+}
+
+do_eqp_test 2.3 {
+  SELECT * FROM t, r_tree
+  WHERE t.x>=min_x AND t.x<=max_x AND t.y>=min_y AND ?<=max_y
+} {
+  QUERY PLAN
+  |--SCAN t
+  `--SCAN r_tree VIRTUAL TABLE INDEX 2:D3B2D1B0
+}
+
+do_eqp_test 2.5 {
+  SELECT * FROM t, r_tree
+} {
+  QUERY PLAN
+  |--SCAN r_tree VIRTUAL TABLE INDEX 2:
+  `--SCAN t
+}
+
+#-------------------------------------------------------------------------
+# Test that the special CROSS JOIN handling works with rtree tables.
+#
+do_execsql_test 3.1 {
+  CREATE TABLE t1(x);
+  CREATE TABLE t2(y);
+  CREATE VIRTUAL TABLE t3 USING rtree(z, x1,x2, y1,y2);
+}
+
+do_eqp_test 3.2.1 { SELECT * FROM t1 CROSS JOIN t2 } {
+  QUERY PLAN
+  |--SCAN t1
+  `--SCAN t2
+}
+do_eqp_test 3.2.2 { SELECT * FROM t2 CROSS JOIN t1 } {
+  QUERY PLAN
+  |--SCAN t2
+  `--SCAN t1
+}
+
+do_eqp_test 3.3.1 { SELECT * FROM t1 CROSS JOIN t3 } {
+  QUERY PLAN
+  |--SCAN t1
+  `--SCAN t3 VIRTUAL TABLE INDEX 2:
+}
+do_eqp_test 3.3.2 { SELECT * FROM t3 CROSS JOIN t1 } {
+  QUERY PLAN
+  |--SCAN t3 VIRTUAL TABLE INDEX 2:
+  `--SCAN t1
+}
+
+#--------------------------------------------------------------------
+# Test that LEFT JOINs are not reordered if the right-hand-side is
+# a virtual table.
+#
+reset_db
+do_execsql_test 4.1 {
+  CREATE TABLE t1(a);
+  CREATE VIRTUAL TABLE t2 USING rtree(b, x1,x2);
+
+  INSERT INTO t1 VALUES(1);
+  INSERT INTO t1 VALUES(2);
+
+  INSERT INTO t2 VALUES(1, 0.0, 0.1);
+  INSERT INTO t2 VALUES(3, 0.0, 0.1);
+}
+
+do_execsql_test 4.2 {
+  SELECT a, b FROM t1 LEFT JOIN t2 ON (+a = +b);
+} {1 1 2 {}}
+
+do_execsql_test 4.3 {
+  SELECT b, a FROM t2 LEFT JOIN t1 ON (+a = +b);
+} {1 1 3 {}}
+
+#--------------------------------------------------------------------
+# Test that the sqlite_stat1 data is used correctly.
+#
+reset_db
+do_execsql_test 5.1 {
+  CREATE TABLE t1(x INT PRIMARY KEY, y);
+  CREATE VIRTUAL TABLE rt USING rtree(id, x1, x2, +d1);
+
+  INSERT INTO t1(x) VALUES(1);
+  INSERT INTO t1(x) SELECT x+1 FROM t1;   --   2
+  INSERT INTO t1(x) SELECT x+2 FROM t1;   --   4
+  INSERT INTO t1(x) SELECT x+4 FROM t1;   --   8
+  INSERT INTO t1(x) SELECT x+8 FROM t1;   --  16
+  INSERT INTO t1(x) SELECT x+16 FROM t1;  --  32
+  INSERT INTO t1(x) SELECT x+32 FROM t1;  --  64
+  INSERT INTO t1(x) SELECT x+64 FROM t1;  -- 128
+  INSERT INTO t1(x) SELECT x+128 FROM t1; -- 256
+  INSERT INTO t1(x) SELECT x+256 FROM t1; -- 512
+  INSERT INTO t1(x) SELECT x+512 FROM t1; --1024
+
+  INSERT INTO rt SELECT x, x, x+1, printf('x%04xy',x) FROM t1 WHERE x<=5;
+}
+do_rtree_integrity_test 5.1.1 rt
+
+# First test a query with no ANALYZE data at all. The outer loop is
+# real table "t1".
+#
+do_eqp_test 5.2 {
+  SELECT * FROM t1, rt WHERE x==id;
+} {
+  QUERY PLAN
+  |--SCAN t1
+  `--SCAN rt VIRTUAL TABLE INDEX 1:
+}
+
+# Now create enough ANALYZE data to tell SQLite that virtual table "rt"
+# contains very few rows. This causes it to move "rt" to the outer loop.
+#
+do_execsql_test 5.3 {
+  ANALYZE;
+  DELETE FROM sqlite_stat1 WHERE tbl='t1';
+}
+db close
+sqlite3 db test.db
+do_eqp_test 5.4 {
+  SELECT * FROM t1, rt WHERE x==id;
+} {
+  QUERY PLAN
+  |--SCAN rt VIRTUAL TABLE INDEX 2:
+  `--SEARCH t1 USING INDEX sqlite_autoindex_t1_1 (x=?)
+}
+
+# Delete the ANALYZE data. "t1" should be the outer loop again.
+#
+do_execsql_test 5.5 { DROP TABLE sqlite_stat1; }
+db close
+sqlite3 db test.db
+do_eqp_test 5.6 {
+  SELECT * FROM t1, rt WHERE x==id;
+} {
+  QUERY PLAN
+  |--SCAN t1
+  `--SCAN rt VIRTUAL TABLE INDEX 1:
+}
+
+# This time create and attach a database that contains ANALYZE data for
+# tables of the same names as those used internally by virtual table
+# "rt". Check that the rtree module is not fooled into using this data.
+# Table "t1" should remain the outer loop.
+#
+do_test 5.7 {
+  db backup test.db2
+  sqlite3 db2 test.db2
+  db2 eval {
+    ANALYZE;
+    DELETE FROM sqlite_stat1 WHERE tbl='t1';
+  }
+  db2 close
+  db close
+  sqlite3 db test.db
+  execsql { ATTACH 'test.db2' AS aux; }
+} {}
+do_eqp_test 5.8 {
+  SELECT * FROM t1, rt WHERE x==id;
+} {
+  QUERY PLAN
+  |--SCAN t1
+  `--SCAN rt VIRTUAL TABLE INDEX 1:
+}
+
+#--------------------------------------------------------------------
+# Test that having a second connection drop the sqlite_stat1 table
+# before it is required by rtreeConnect() does not cause problems.
+#
+ifcapable rtree {
+  reset_db
+  do_execsql_test 6.1 {
+    CREATE TABLE t1(x);
+    CREATE VIRTUAL TABLE rt USING rtree(id, x1, x2);
+    INSERT INTO t1 VALUES(1);
+    INSERT INTO rt VALUES(1,2,3);
+    ANALYZE;
+  }
+  db close
+  sqlite3 db test.db
+  do_execsql_test 6.2 { SELECT * FROM t1 } {1}
+  
+  do_test 6.3 {
+    sqlite3 db2 test.db
+    db2 eval { DROP TABLE sqlite_stat1 }
+    db2 close
+    execsql { SELECT * FROM rt }
+  } {1 2.0 3.0}
+  db close
+}
+
+#--------------------------------------------------------------------
+# Test that queries featuring LEFT or CROSS JOINS are handled correctly.
+# Handled correctly in this case means:
+#
+#   * Terms with prereqs that appear to the left of a LEFT JOIN against
+#     the virtual table are always available to xBestIndex.
+#
+#   * Terms with prereqs that appear to the right of a LEFT JOIN against
+#     the virtual table are never available to xBestIndex.
+#
+# And the same behaviour for CROSS joins.
+#
+reset_db
+do_execsql_test 7.0 {
+  CREATE TABLE xdir(x1);
+  CREATE TABLE ydir(y1);
+  CREATE VIRTUAL TABLE rt USING rtree_i32(id, xmin, xmax, ymin, ymax);
+
+  INSERT INTO xdir VALUES(5);
+  INSERT INTO ydir VALUES(10);
+
+  INSERT INTO rt VALUES(1, 2, 7, 12, 14);      -- Not a hit
+  INSERT INTO rt VALUES(2, 2, 7, 8, 12);       -- A hit!
+  INSERT INTO rt VALUES(3, 7, 11, 8, 12);      -- Not a hit!
+  INSERT INTO rt VALUES(4, 5, 5, 10, 10);      -- A hit!
+
+}
+
+proc do_eqp_execsql_test {tn sql res1 res2} {
+  do_eqp_test $tn.1 $sql $res1
+  do_execsql_test $tn.2 $sql $res2
+}
+
+do_eqp_execsql_test 7.1 {
+  SELECT id FROM xdir, rt, ydir 
+  ON (y1 BETWEEN ymin AND ymax)
+  WHERE (x1 BETWEEN xmin AND xmax);
+} {
+  QUERY PLAN
+  |--SCAN xdir
+  |--SCAN ydir
+  `--SCAN rt VIRTUAL TABLE INDEX 2:B2D3B0D1
+} {
+  2 4
+}
+
+do_eqp_execsql_test 7.2 {
+  SELECT * FROM xdir, rt LEFT JOIN ydir 
+  ON (y1 BETWEEN ymin AND ymax)
+  WHERE (x1 BETWEEN xmin AND xmax);
+} {
+  QUERY PLAN
+  |--SCAN xdir
+  |--SCAN rt VIRTUAL TABLE INDEX 2:B0D1
+  `--SCAN ydir LEFT-JOIN
+} {
+  5 1 2 7 12 14 {}
+  5 2 2 7  8 12 10
+  5 4 5 5 10 10 10
+}
+
+do_eqp_execsql_test 7.3 {
+  SELECT id FROM xdir, rt CROSS JOIN ydir 
+  ON (y1 BETWEEN ymin AND ymax)
+  WHERE (x1 BETWEEN xmin AND xmax);
+} {
+  QUERY PLAN
+  |--SCAN xdir
+  |--SCAN rt VIRTUAL TABLE INDEX 2:B0D1
+  `--SCAN ydir
+} {
+  2 4
+}
+
+do_eqp_execsql_test 7.4 {
+  SELECT id FROM rt, xdir CROSS JOIN ydir 
+  ON (y1 BETWEEN ymin AND ymax)
+  WHERE (x1 BETWEEN xmin AND xmax);
+} {
+  QUERY PLAN
+  |--SCAN xdir
+  |--SCAN rt VIRTUAL TABLE INDEX 2:B0D1
+  `--SCAN ydir
+} {
+  2 4
+}
+
+finish_test
diff --git a/ext/rtree/rtreeD.test b/ext/rtree/rtreeD.test
new file mode 100644
index 0000000000000000000000000000000000000000..7f92898b0ab1de392f9eba5f7a46059d2111ba01
--- /dev/null
+++ b/ext/rtree/rtreeD.test
@@ -0,0 +1,55 @@
+# 2014 March 11
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Miscellaneous tests for errors in the rtree constructor.
+#
+
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] rtree_util.tcl]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+ifcapable !rtree||!builtin_test {
+  finish_test
+  return
+}
+set testprefix rtreeD
+
+#-------------------------------------------------------------------------
+# Test that if an SQLITE_BUSY is encountered within the vtable 
+# constructor, a relevant error message is returned.
+#
+do_multiclient_test tn {
+  do_test 1.$tn.1 {
+    sql1 {
+      CREATE TABLE t1(a, b);
+      INSERT INTO t1 VALUES(1,2);
+      CREATE VIRTUAL TABLE rt USING rtree(id, minx, maxx, miny, maxy);
+      INSERT INTO rt VALUES(1,2,3,4,5);
+    }
+  } {}
+
+  do_test 1.$tn.2 {
+    sql2 { SELECT * FROM t1; }
+  } {1 2}
+
+  do_test 1.$tn.3 {
+    sql1 { BEGIN EXCLUSIVE; INSERT INTO t1 VALUES(3, 4); }
+  } {}
+
+  do_test 1.$tn.4 {
+    list [catch { sql2 { SELECT * FROM rt } } msg] $msg
+  } {1 {database is locked}}
+}
+
+finish_test
diff --git a/ext/rtree/rtreeE.test b/ext/rtree/rtreeE.test
new file mode 100644
index 0000000000000000000000000000000000000000..72dcc94c9f489ef01ee815381f880ec14be1a61b
--- /dev/null
+++ b/ext/rtree/rtreeE.test
@@ -0,0 +1,143 @@
+# 2010 August 28
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file contains tests for the r-tree module. Specifically, it tests
+# that new-style custom r-tree queries (geometry callbacks) work.
+# 
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] rtree_util.tcl]
+source $testdir/tester.tcl
+ifcapable !rtree { finish_test ; return }
+ifcapable rtree_int_only { finish_test; return }
+
+
+#-------------------------------------------------------------------------
+# Test the example 2d "circle" geometry callback.
+#
+register_circle_geom db
+
+do_execsql_test rtreeE-1.0.0 {
+  PRAGMA page_size=512;
+  CREATE VIRTUAL TABLE rt1 USING rtree(id,x0,x1,y0,y1);
+  
+  /* A tight pattern of small boxes near 0,0 */
+  WITH RECURSIVE
+    x(x) AS (VALUES(0) UNION ALL SELECT x+1 FROM x WHERE x<4),
+    y(y) AS (VALUES(0) UNION ALL SELECT y+1 FROM y WHERE y<4)
+  INSERT INTO rt1 SELECT x+5*y, x, x+2, y, y+2 FROM x, y;
+
+  /* A looser pattern of small boxes near 100, 0 */
+  WITH RECURSIVE
+    x(x) AS (VALUES(0) UNION ALL SELECT x+1 FROM x WHERE x<4),
+    y(y) AS (VALUES(0) UNION ALL SELECT y+1 FROM y WHERE y<4)
+  INSERT INTO rt1 SELECT 100+x+5*y, x*3+100, x*3+102, y*3, y*3+2 FROM x, y;
+
+  /* A looser pattern of larger boxes near 0, 200 */
+  WITH RECURSIVE
+    x(x) AS (VALUES(0) UNION ALL SELECT x+1 FROM x WHERE x<4),
+    y(y) AS (VALUES(0) UNION ALL SELECT y+1 FROM y WHERE y<4)
+  INSERT INTO rt1 SELECT 200+x+5*y, x*7, x*7+15, y*7+200, y*7+215 FROM x, y;
+} {}
+do_rtree_integrity_test rtreeE-1.0.1 rt1
+
+# Queries against each of the three clusters */
+do_execsql_test rtreeE-1.1 {
+  SELECT id FROM rt1 WHERE id MATCH Qcircle(0.0, 0.0, 50.0, 3) ORDER BY id;
+} {0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24}
+do_execsql_test rtreeE-1.1x {
+  SELECT id FROM rt1 WHERE id MATCH Qcircle('x:0 y:0 r:50.0 e:3') ORDER BY id;
+} {0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24}
+do_execsql_test rtreeE-1.2 {
+  SELECT id FROM rt1 WHERE id MATCH Qcircle(100.0, 0.0, 50.0, 3) ORDER BY id;
+} {100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124}
+do_execsql_test rtreeE-1.3 {
+  SELECT id FROM rt1 WHERE id MATCH Qcircle(0.0, 200.0, 50.0, 3) ORDER BY id;
+} {200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224}
+
+# The Qcircle geometry function gives a lower score to larger leaf-nodes.
+# This causes the 200s to sort before the 100s and the 0s to sort before
+# last.
+#
+do_execsql_test rtreeE-1.4 {
+  SELECT id FROM rt1 WHERE id MATCH Qcircle('r:1000 e:3') AND id%100==0
+} {200 100 0}
+
+# Exclude odd rowids on a depth-first search
+do_execsql_test rtreeE-1.5 {
+  SELECT id FROM rt1 WHERE id MATCH Qcircle('r:1000 e:4') ORDER BY +id
+} {0 2 4 6 8 10 12 14 16 18 20 22 24 100 102 104 106 108 110 112 114 116 118 120 122 124 200 202 204 206 208 210 212 214 216 218 220 222 224}
+
+# Exclude odd rowids on a breadth-first search.
+do_execsql_test rtreeE-1.6 {
+  SELECT id FROM rt1 WHERE id MATCH Qcircle(0,0,1000,5) ORDER BY +id
+} {0 2 4 6 8 10 12 14 16 18 20 22 24 100 102 104 106 108 110 112 114 116 118 120 122 124 200 202 204 206 208 210 212 214 216 218 220 222 224}
+
+# Test that rtree prefers MATCH to lookup-by-rowid.
+#
+do_execsql_test rtreeE-1.7 {
+  SELECT id FROM rt1 WHERE id=18 AND id MATCH Qcircle(0,0,1000,5)
+} {18}
+
+
+# Construct a large 2-D RTree with thousands of random entries.
+#
+do_test rtreeE-2.1 {
+  db eval {
+    CREATE TABLE t2(id,x0,x1,y0,y1);
+    CREATE VIRTUAL TABLE rt2 USING rtree(id,x0,x1,y0,y1);
+    BEGIN;
+  }
+  expr srand(0)
+  for {set i 1} {$i<=10000} {incr i} {
+    set dx [expr {int(rand()*40)+1}]
+    set dy [expr {int(rand()*40)+1}]
+    set x0 [expr {int(rand()*(10000 - $dx))}]
+    set x1 [expr {$x0+$dx}]
+    set y0 [expr {int(rand()*(10000 - $dy))}]
+    set y1 [expr {$y0+$dy}]
+    set id [expr {$i+10000}]
+    db eval {INSERT INTO t2 VALUES($id,$x0,$x1,$y0,$y1)}
+  }
+  db eval {
+    INSERT INTO rt2 SELECT * FROM t2;
+    COMMIT;
+  }
+} {}
+do_rtree_integrity_test rtreeE-2.1.1 rt2
+
+for {set i 1} {$i<=200} {incr i} {
+  set dx [expr {int(rand()*100)}]
+  set dy [expr {int(rand()*100)}]
+  set x0 [expr {int(rand()*(10000 - $dx))}]
+  set x1 [expr {$x0+$dx}]
+  set y0 [expr {int(rand()*(10000 - $dy))}]
+  set y1 [expr {$y0+$dy}]
+  set ans [db eval {SELECT id FROM t2 WHERE x1>=$x0 AND x0<=$x1 AND y1>=$y0 AND y0<=$y1 ORDER BY id}]
+  do_execsql_test rtreeE-2.2.$i {
+    SELECT id FROM rt2 WHERE id MATCH breadthfirstsearch($x0,$x1,$y0,$y1) ORDER BY id
+  } $ans
+}
+
+# Run query that have very deep priority queues
+#
+set ans [db eval {SELECT id FROM t2 WHERE x1>=0 AND x0<=5000 AND y1>=0 AND y0<=5000 ORDER BY id}]
+do_execsql_test rtreeE-2.3 {
+  SELECT id FROM rt2 WHERE id MATCH breadthfirstsearch(0,5000,0,5000) ORDER BY id
+} $ans
+set ans [db eval {SELECT id FROM t2 WHERE x1>=0 AND x0<=10000 AND y1>=0 AND y0<=10000 ORDER BY id}]
+do_execsql_test rtreeE-2.4 {
+  SELECT id FROM rt2 WHERE id MATCH breadthfirstsearch(0,10000,0,10000) ORDER BY id
+} $ans
+
+
+finish_test
diff --git a/ext/rtree/rtreeF.test b/ext/rtree/rtreeF.test
new file mode 100644
index 0000000000000000000000000000000000000000..561770d085bcb12730c6ae5e8b2781eaff859288
--- /dev/null
+++ b/ext/rtree/rtreeF.test
@@ -0,0 +1,84 @@
+# 2014-08-21
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file contains tests for the r-tree module.
+#
+# This file contains test cases for the ticket
+# [369d57fb8e5ccdff06f197a37147a88f9de95cda] (2014-08-21)
+#
+#  The following SQL causes an assertion fault while running
+#  sqlite3_prepare() on the DELETE statement:
+#
+#     CREATE TABLE t1(x);
+#     CREATE TABLE t2(y);
+#     CREATE VIRTUAL TABLE t3 USING rtree(a,b,c);
+#     CREATE TRIGGER t2del AFTER DELETE ON t2 WHEN (SELECT 1 from t1) BEGIN 
+#       DELETE FROM t3 WHERE a=old.y; 
+#     END;
+#     DELETE FROM t2 WHERE y=1;
+# 
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] rtree_util.tcl]
+source $testdir/tester.tcl
+ifcapable !rtree { finish_test ; return }
+
+do_execsql_test rtreeF-1.1 {
+  CREATE TABLE t1(x);
+  CREATE TABLE t2(y);
+  CREATE VIRTUAL TABLE t3 USING rtree(a,b,c);
+  CREATE TRIGGER t2dwl AFTER DELETE ON t2 WHEN (SELECT 1 from t1) BEGIN 
+    DELETE FROM t3 WHERE a=old.y; 
+  END;
+
+  INSERT INTO t1(x) VALUES(999);
+  INSERT INTO t2(y) VALUES(1),(2),(3),(4),(5);
+  INSERT INTO t3(a,b,c) VALUES(1,2,3),(2,3,4),(3,4,5),(4,5,6),(5,6,7);
+
+  SELECT a FROM t3 ORDER BY a;
+  SELECT '|';
+  SELECT y FROM t2 ORDER BY y;
+} {1 2 3 4 5 | 1 2 3 4 5}
+do_execsql_test rtreeF-1.2 {
+  DELETE FROM t2 WHERE y=3;
+
+  SELECT a FROM t3 ORDER BY a;
+  SELECT '|';
+  SELECT y FROM t2 ORDER BY y;
+} {1 2 4 5 | 1 2 4 5}
+do_execsql_test rtreeF-1.3 {
+  DELETE FROM t1;
+  DELETE FROM t2 WHERE y=5;
+
+  SELECT a FROM t3 ORDER BY a;
+  SELECT '|';
+  SELECT y FROM t2 ORDER BY y;
+} {1 2 4 5 | 1 2 4}
+do_execsql_test rtreeF-1.4 {
+  INSERT INTO t1 DEFAULT VALUES;
+  DELETE FROM t2 WHERE y=5;
+
+  SELECT a FROM t3 ORDER BY a;
+  SELECT '|';
+  SELECT y FROM t2 ORDER BY y;
+} {1 2 4 5 | 1 2 4}
+do_execsql_test rtreeF-1.5 {
+  DELETE FROM t2 WHERE y=2;
+
+  SELECT a FROM t3 ORDER BY a;
+  SELECT '|';
+  SELECT y FROM t2 ORDER BY y;
+} {1 4 5 | 1 4}
+
+do_rtree_integrity_test rtreeF-1.6 t3
+
+finish_test
diff --git a/ext/rtree/rtreeG.test b/ext/rtree/rtreeG.test
new file mode 100644
index 0000000000000000000000000000000000000000..12225d5832ee7dcfb7704d1cb753ac5bf88ca25e
--- /dev/null
+++ b/ext/rtree/rtreeG.test
@@ -0,0 +1,69 @@
+# 2016-05-32
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file contains tests for the r-tree module.
+#
+# Verify that no invalid SQL is run during initialization
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] rtree_util.tcl]
+source $testdir/tester.tcl
+ifcapable !rtree { finish_test ; return }
+
+db close
+sqlite3_shutdown
+test_sqlite3_log [list lappend ::log]
+set ::log [list]
+sqlite3 db test.db
+
+
+set ::log {}
+do_execsql_test rtreeG-1.1 {
+  CREATE VIRTUAL TABLE t1 USING rtree(id,x0,x1,y0,y1);
+} {}
+do_test rtreeG-1.1log {
+  set ::log
+} {}
+
+do_execsql_test rtreeG-1.2 {
+  INSERT INTO t1 VALUES(1,10,15,5,23),(2,20,21,5,23),(3,10,15,20,30);
+  SELECT id from t1 WHERE x0>8 AND x1<16 AND y0>2 AND y1<25;
+} {1}
+do_rtree_integrity_test rtreeG-1.2.integrity t1
+do_test rtreeG-1.2log {
+  set ::log
+} {}
+
+db close
+sqlite3 db test.db
+do_execsql_test rtreeG-1.3 {
+  SELECT id from t1 WHERE x0>8 AND x1<16 AND y0>2 AND y1<25;
+} {1}
+do_test rtreeG-1.3log {
+  set ::log
+} {}
+
+do_execsql_test rtreeG-1.4 {
+  DROP TABLE t1;
+} {}
+do_test rtreeG-1.4log {
+  set ::log
+} {}
+
+expand_all_sql db
+db close
+sqlite3_shutdown
+test_sqlite3_log
+sqlite3_initialize
+sqlite3 db test.db
+
+finish_test
diff --git a/ext/rtree/rtreeH.test b/ext/rtree/rtreeH.test
new file mode 100644
index 0000000000000000000000000000000000000000..e26107f075dde755f406aa202c7dad5237b19cb3
--- /dev/null
+++ b/ext/rtree/rtreeH.test
@@ -0,0 +1,103 @@
+# 2018-05-16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file contains tests for the r-tree module, specifically the
+# auxiliary column mechanism.
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] rtree_util.tcl]
+source $testdir/tester.tcl
+ifcapable !rtree { finish_test ; return }
+
+do_execsql_test rtreeH-100 {
+  CREATE VIRTUAL TABLE t1 USING rtree(id,x0,x1,y0,y1,+label,+other);
+  INSERT INTO t1(x0,x1,y0,y1,label) VALUES
+    (0,10,0,10,'lower-left corner'),
+    (0,10,90,100,'upper-left corner'),
+    (90,100,0,10,'lower-right corner'),
+    (90,100,90,100,'upper-right corner'),
+    (40,60,40,60,'center'),
+    (0,5,0,100,'left edge'),
+    (95,100,0,100,'right edge'),
+    (0,100,0,5,'bottom edge'),
+    (0,100,95,100,'top edge'),
+    (0,100,0,100,'the whole thing'),
+    (0,50,0,100,'left half'),
+    (51,100,0,100,'right half'),
+    (0,100,0,50,'bottom half'),
+    (0,100,51,100,'top half');
+} {}
+do_execsql_test rtreeH-101 {
+  SELECT * FROM t1_rowid ORDER BY rowid
+} {1 1 {lower-left corner} {} 2 1 {upper-left corner} {} 3 1 {lower-right corner} {} 4 1 {upper-right corner} {} 5 1 center {} 6 1 {left edge} {} 7 1 {right edge} {} 8 1 {bottom edge} {} 9 1 {top edge} {} 10 1 {the whole thing} {} 11 1 {left half} {} 12 1 {right half} {} 13 1 {bottom half} {} 14 1 {top half} {}}
+
+do_execsql_test rtreeH-102 {
+  SELECT * FROM t1 WHERE rowid=5;
+} {5 40.0 60.0 40.0 60.0 center {}}
+do_execsql_test rtreeH-102b {
+  SELECT * FROM t1 WHERE rowid=5.0;
+} {5 40.0 60.0 40.0 60.0 center {}}
+do_execsql_test rtreeH-102c {
+  SELECT * FROM t1 WHERE rowid='5';
+} {5 40.0 60.0 40.0 60.0 center {}}
+do_execsql_test rtreeH-102d {
+  SELECT * FROM t1 WHERE rowid='0005';
+} {5 40.0 60.0 40.0 60.0 center {}}
+do_execsql_test rtreeH-102e {
+  SELECT * FROM t1 WHERE rowid='+5.0e+0';
+} {5 40.0 60.0 40.0 60.0 center {}}
+do_execsql_test rtreeH-103 {
+  SELECT * FROM t1 WHERE label='center';
+} {5 40.0 60.0 40.0 60.0 center {}}
+
+do_execsql_test rtreeH-104 {
+  SELECT * FROM t1 WHERE rowid='+5.0e+0x';
+} {}
+do_execsql_test rtreeH-105 {
+  SELECT * FROM t1 WHERE rowid=x'35';
+} {}
+do_execsql_test rtreeH-106 {
+  SELECT * FROM t1 WHERE rowid=null;
+} {}
+
+
+do_rtree_integrity_test rtreeH-110 t1
+
+do_execsql_test rtreeH-120 {
+  SELECT label FROM t1 WHERE x1<=50 ORDER BY id
+} {{lower-left corner} {upper-left corner} {left edge} {left half}}
+do_execsql_test rtreeH-121 {
+  SELECT label FROM t1 WHERE x1<=50 AND label NOT LIKE '%corner%' ORDER BY id
+} {{left edge} {left half}}
+
+do_execsql_test rtreeH-200 {
+  WITH RECURSIVE
+    c1(x) AS (VALUES(0) UNION ALL SELECT x+1 FROM c1 WHERE x<99),
+    c2(y) AS (VALUES(0) UNION ALL SELECT y+1 FROM c2 WHERE y<99)
+  INSERT INTO t1(id, x0,x1,y0,y1,label)
+    SELECT 1000+x+y*100, x, x+1, y, y+1, printf('box-%d,%d',x,y) FROM c1, c2;
+} {}
+
+do_execsql_test rtreeH-210 {
+  SELECT label FROM t1 WHERE x0>=48 AND x1<=50 AND y0>=48 AND y1<=50
+     ORDER BY id;
+} {box-48,48 box-49,48 box-48,49 box-49,49}
+
+do_execsql_test rtreeH-300 {
+  UPDATE t1 SET label='x'||label
+    WHERE x0>=49 AND x1<=50 AND y0>=49 AND y1<=50;
+  SELECT label FROM t1 WHERE x0>=48 AND x1<=50 AND y0>=48 AND y1<=50
+     ORDER BY id;
+} {box-48,48 box-49,48 box-48,49 xbox-49,49}
+
+
+finish_test
diff --git a/ext/rtree/rtreeI.test b/ext/rtree/rtreeI.test
new file mode 100644
index 0000000000000000000000000000000000000000..0bc910e0f472cfae7edcb67e5a7c1a0b769b9de9
--- /dev/null
+++ b/ext/rtree/rtreeI.test
@@ -0,0 +1,74 @@
+# 2019-12-05
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# Additional test cases
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] rtree_util.tcl]
+source $testdir/tester.tcl
+ifcapable !rtree { finish_test ; return }
+
+# The following is a test of rowvalue handling on virtual tables that
+# deal with inequalities and that set the OMIT flag on terms of the
+# WHERE clause.  This is not specific to rtree.  We just use rtree because
+# it is a convenient test platform since it has all the right
+# characteristics.
+#
+do_execsql_test rtreeI-1.10 {
+  CREATE TABLE t1(a);
+  INSERT INTO t1 VALUES(2);
+  CREATE VIRTUAL TABLE t2 USING rtree(id,x0,x1);
+  INSERT INTO t2(id,x0,x1) VALUES(1,2,3);
+} {}
+do_execsql_test rtreeI-1.20 {
+  SELECT 123 FROM t1, t2 WHERE (a,0)>(x0,0);
+} {}
+do_execsql_test rtreeI-1.21 {
+  SELECT 123 FROM t1, t2 WHERE (a,0.1)>(x0,0);
+} {123}
+do_execsql_test rtreeI-1.22 {
+  SELECT 123 FROM t1, t2 WHERE (a,0)>=(x0,0);
+} {123}
+do_execsql_test rtreeI-1.23 {
+  SELECT 123 FROM t1, t2 WHERE (a,0)<=(x0,0);
+} {123}
+do_execsql_test rtreeI-1.24 {
+  SELECT 123 FROM t1, t2 WHERE (a,0)<(x0,0);
+} {}
+do_execsql_test rtreeI-1.30 {
+  SELECT 123 FROM t1, t2 WHERE (x0,0)<(a,0);
+} {}
+do_execsql_test rtreeI-1.31 {
+  SELECT 123 FROM t1, t2 WHERE (x0,0)<(a,0.1);
+} {123}
+do_execsql_test rtreeI-1.40 {
+  SELECT 123 FROM t1, t2 WHERE x1<5 AND id<99 AND (a,0)>(x0,0);
+} {}
+do_execsql_test rtreeI-1.41 {
+  SELECT 123 FROM t1, t2 WHERE x1<5 AND id<99 AND (a,0.5)>(x0,0);
+} {123}
+do_execsql_test rtreeI-1.42 {
+  SELECT 123 FROM t1, t2 WHERE x1<5 AND id<99 AND (a,0)>=(x0,0);
+} {123}
+do_execsql_test rtreeI-1.43 {
+  SELECT 123 FROM t1, t2 WHERE x1<5 AND id<99 AND (a,0)<(x0,0);
+} {}
+do_execsql_test rtreeI-1.50 {
+  SELECT 123 FROM t1, t2 WHERE 5>x1 AND 99>id AND (x0,0)<(a,0);
+} {}
+do_execsql_test rtreeI-1.51 {
+  SELECT 123 FROM t1, t2 WHERE 5>x1 AND 99>id AND (x0,0)<(a,0.5);
+} {123}
+
+
+
+finish_test
diff --git a/ext/rtree/rtreeJ.test b/ext/rtree/rtreeJ.test
new file mode 100644
index 0000000000000000000000000000000000000000..b091d2c686f69d81343d53b03b22d9d0e3265f82
--- /dev/null
+++ b/ext/rtree/rtreeJ.test
@@ -0,0 +1,273 @@
+# 2024-02-03
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+# ROLLBACK in the middle of an RTREE query
+#
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source $testdir/tester.tcl
+set testprefix rtreeJ
+ifcapable !rtree { finish_test ; return }
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING rtree(id, x1, x2);
+  INSERT INTO t1 VALUES(1, 1, 1), (2, 2, 2);
+} {}
+
+do_execsql_test 1.1 {
+  SELECT * FROM t1
+} {1 1.0 1.0 2 2.0 2.0}
+
+# If a ROLLBACK occurs that backs out changes to the RTREE, then
+# all pending queries to the RTREE are aborted.
+#
+do_test 1.2 {
+  db eval {
+    BEGIN;
+      INSERT INTO t1 VALUES(3, 3, 3);
+      INSERT INTO t1 VALUES(4, 4, 4);
+  }
+  set rc [catch {
+    db eval { SELECT * FROM t1 } {
+      if {$id==1} {
+        db eval { ROLLBACK }
+      }
+      lappend res $id $x1 $x2
+    }
+  } msg]
+  list $rc $msg
+} {1 {query aborted}}
+
+do_execsql_test 1.3 {
+  SELECT * FROM t1;
+} {1 1.0 1.0 2 2.0 2.0}
+
+# A COMMIT of changes to the RTREE does not affect pending queries
+#
+do_test 1.4 {
+  set res {}
+  db eval {
+    BEGIN;
+      INSERT INTO t1 VALUES(5, 5, 5);
+      INSERT INTO t1 VALUES(6, 6, 6);
+  }
+  db eval { SELECT * FROM t1 } {
+    if {$id==1} {
+      db eval { COMMIT }
+    }
+    lappend res $id $x1 $x2
+  }
+  set res
+} {1 1.0 1.0 2 2.0 2.0 5 5.0 5.0 6 6.0 6.0}
+
+do_execsql_test 1.5 {
+  SELECT * FROM t1;
+} {1 1.0 1.0 2 2.0 2.0 5 5.0 5.0 6 6.0 6.0}
+
+do_execsql_test 1.6 {
+  DELETE  FROM t1;
+  INSERT INTO t1 VALUES(1,1,1),(2,2,2),(3,3,3),(4,4,4);
+  CREATE TABLE t2(x);
+  SELECT * FROM t1;
+} {1 1.0 1.0 2 2.0 2.0 3 3.0 3.0 4 4.0 4.0}
+
+# A rollback that does not affect the rtree table because
+# the rtree table has not been written to does not cause
+# a query abort.
+#
+do_test 1.7 {
+  set res {}
+  db eval {
+    BEGIN;
+    INSERT INTO t2(x) VALUES(12345);
+  }
+  db eval { SELECT * FROM t1 } {
+    if {$id==1} {
+      db eval { ROLLBACK }
+    }
+    lappend res $id $x1 $x2
+  }
+  set res
+} {1 1.0 1.0 2 2.0 2.0 3 3.0 3.0 4 4.0 4.0}
+
+# ROLLBACK TO that affects the RTREE does cause a query abort.
+#
+do_test 1.8 {
+  db eval {
+    DELETE FROM t1 WHERE rowid>1;
+    BEGIN;
+    DELETE FROM t2;
+    INSERT INTO t2(x) VALUES(23456);
+    SAVEPOINT 'one';
+    INSERT INTO t1 VALUES(2,2,2),(3,3,3);
+  }
+  set rc [catch {
+    db eval { SELECT * FROM t1 } {
+      if {$id==1} {
+        db eval { ROLLBACK TO 'one'; }
+      }
+      lappend res $id $x1 $x2
+    }
+  } msg]
+  list $rc $msg
+} {1 {query aborted}}
+
+do_execsql_test 1.9 {
+  COMMIT;
+  SELECT * FROM t1;
+} {1 1.0 1.0}
+
+# ROLLBACK TO that does not affect the RTREE does not cause a query abort.
+#
+do_execsql_test 1.10 {
+  DELETE FROM t1;
+  INSERT INTO t1 VALUES(1,1,1),(2,2,2),(3,3,3);
+  BEGIN;
+  DELETE FROM t2;
+  INSERT INTO t2(x) VALUES(34567);
+  SAVEPOINT 'one';
+  INSERT INTO t2(x) VALUES('a string');
+  SELECT * FROM t1;
+} {1 1.0 1.0 2 2.0 2.0 3 3.0 3.0}
+do_test 1.11 {
+  set rc [catch {
+    set res {}
+    db eval { SELECT * FROM t1 } {
+      if {$id==2} {
+        # db eval { ROLLBACK TO 'one'; }
+      }
+      lappend res $id $x1 $x2
+    }
+    set res
+  } msg]
+  list $rc $msg
+} {0 {1 1.0 1.0 2 2.0 2.0 3 3.0 3.0}}
+
+do_execsql_test 1.12 {
+  COMMIT;
+  SELECT * FROM t1;
+} {1 1.0 1.0 2 2.0 2.0 3 3.0 3.0}
+
+#----------------------------------------------------------------------
+
+reset_db
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE t1 USING rtree(id, x1, x2);
+  INSERT INTO t1 VALUES(1, 1, 1), (2, 2, 2);
+  CREATE TABLE t2(x);
+} {}
+
+do_test 2.1 {
+  db eval {
+    BEGIN;
+    INSERT INTO t1 VALUES(3, 3, 3);
+    PRAGMA writable_schema = RESET;
+  }
+
+  set rc [catch {
+    db eval { SELECT x1, x2 FROM t1 } {
+      if {$x1==1} {
+        db eval { ROLLBACK }
+      }
+      lappend res $x1 $x2
+    }
+  } msg]
+  list $rc $msg
+}  {1 {query aborted}}
+
+do_execsql_test 2.1 {
+  CREATE TABLE bak_node(nodeno, data);
+  CREATE TABLE bak_parent(nodeno, parentnode);
+  CREATE TABLE bak_rowid(rowid, nodeno);
+}
+proc save_t1 {} {
+  db eval {
+    DELETE FROM bak_node;
+    DELETE FROM bak_parent;
+    DELETE FROM bak_rowid;
+    INSERT INTO bak_node SELECT * FROM t1_node;
+    INSERT INTO bak_parent SELECT * FROM t1_parent;
+    INSERT INTO bak_rowid SELECT * FROM t1_rowid;
+  }
+}
+proc restore_t1 {} {
+  db eval {
+    DELETE FROM t1_node;
+    DELETE FROM t1_parent;
+    DELETE FROM t1_rowid;
+    INSERT INTO t1_node SELECT * FROM bak_node;
+    INSERT INTO t1_parent SELECT * FROM bak_parent;
+    INSERT INTO t1_rowid SELECT * FROM bak_rowid;
+  }
+}
+
+do_test 2.3 {
+  save_t1
+  db eval {
+    INSERT INTO t1 VALUES(3, 3, 3);
+  }
+  set rc [catch {
+    db eval { SELECT rowid, x1, x2 FROM t1 } {
+      if {$x1==1} {
+        restore_t1
+      }
+      lappend res $x1 $x2
+    }
+  } msg]
+  list $rc $msg
+}  {1 {query aborted}}
+do_execsql_test 2.4 {
+  SELECT * FROM t1
+} {1 1.0 1.0 2 2.0 2.0}
+
+do_test 2.5 {
+  save_t1
+  db eval {
+    INSERT INTO t1 VALUES(3, 3, 3);
+  }
+  set rc [catch {
+    db eval { SELECT x1 FROM t1 } {
+      if {$x1==1} {
+        restore_t1
+      }
+      lappend res $x1 $x2
+    }
+  } msg]
+  list $rc $msg
+}  {1 {query aborted}}
+do_execsql_test 2.6 {
+  SELECT * FROM t1
+} {1 1.0 1.0 2 2.0 2.0}
+
+do_test 2.7 {
+  save_t1
+  db eval {
+    INSERT INTO t1 VALUES(3, 3, 3);
+  }
+  set ::res [list]
+  set rc [catch {
+    db eval { SELECT 'abc' FROM t1 } {
+      if {$::res==[list]} {
+        restore_t1
+        set ::bDone 1
+      }
+      lappend res abc
+    }
+  } msg]
+  set res
+} {abc abc abc}
+do_execsql_test 2.6 {
+  SELECT * FROM t1
+} {1 1.0 1.0 2 2.0 2.0}
+
+
+finish_test
diff --git a/ext/rtree/rtree_perf.tcl b/ext/rtree/rtree_perf.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..e42e68550611cce669945a51d1befe9efde7b8a2
--- /dev/null
+++ b/ext/rtree/rtree_perf.tcl
@@ -0,0 +1,74 @@
+
+set testdir [file join [file dirname $argv0] .. .. test]
+source $testdir/tester.tcl
+
+ifcapable !rtree {
+  finish_test
+  return
+}
+
+set NROW   10000
+set NQUERY   500
+
+puts "Generating $NROW rows of data..."
+set data [list]
+for {set ii 0} {$ii < $NROW} {incr ii} {
+  set x1 [expr {rand()*1000}]
+  set x2 [expr {$x1+rand()*50}]
+  set y1 [expr {rand()*1000}]
+  set y2 [expr {$y1+rand()*50}]
+  lappend data $x1 $x2 $y1 $y2
+}
+puts "Finished generating data"
+
+
+set sql1 {CREATE TABLE btree(ii INTEGER PRIMARY KEY, x1, x2, y1, y2)}
+set sql2 {CREATE VIRTUAL TABLE rtree USING rtree(ii, x1, x2, y1, y2)}
+puts "Creating tables:"
+puts "  $sql1"
+puts "  $sql2"
+db eval $sql1
+db eval $sql2
+
+db eval "pragma cache_size=100"
+
+puts -nonewline "Inserting into btree... "
+flush stdout
+set btree_time [time {db transaction {
+  set ii 1
+  foreach {x1 x2 y1 y2} $data {
+    db eval {INSERT INTO btree VALUES($ii, $x1, $x2, $y1, $y2)}
+    incr ii
+  }
+}}]
+puts "$btree_time"
+
+puts -nonewline "Inserting into rtree... "
+flush stdout
+set rtree_time [time {db transaction {
+  set ii 1
+  foreach {x1 x2 y1 y2} $data {
+    incr ii
+    db eval {INSERT INTO rtree VALUES($ii, $x1, $x2, $y1, $y2)}
+  }
+}}]
+puts "$rtree_time"
+
+
+puts -nonewline "Selecting from btree... "
+flush stdout
+set btree_select_time [time {
+  foreach {x1 x2 y1 y2} [lrange $data 0 [expr $NQUERY*4-1]] {
+    db eval {SELECT * FROM btree WHERE x1<$x1 AND x2>$x2 AND y1<$y1 AND y2>$y2}
+ }
+}]
+puts "$btree_select_time"
+
+puts -nonewline "Selecting from rtree... "
+flush stdout
+set rtree_select_time [time {
+  foreach {x1 x2 y1 y2} [lrange $data 0 [expr $NQUERY*4-1]] {
+    db eval {SELECT * FROM rtree WHERE x1<$x1 AND x2>$x2 AND y1<$y1 AND y2>$y2}
+  }
+}]
+puts "$rtree_select_time"
diff --git a/ext/rtree/rtree_util.tcl b/ext/rtree/rtree_util.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..5640baf4e075cc76d91f82380065b7e1aba894dc
--- /dev/null
+++ b/ext/rtree/rtree_util.tcl
@@ -0,0 +1,197 @@
+# 2008 Feb 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains Tcl code that may be useful for testing or
+# analyzing r-tree structures created with this module. It is
+# used by both test procedures and the r-tree viewer application.
+#
+
+
+#--------------------------------------------------------------------------
+# PUBLIC API:
+#
+#   rtree_depth
+#   rtree_ndim
+#   rtree_node
+#   rtree_mincells
+#   rtree_check
+#   rtree_dump
+#   rtree_treedump
+#
+
+proc rtree_depth {db zTab} {
+  $db one "SELECT rtreedepth(data) FROM ${zTab}_node WHERE nodeno=1"
+}
+
+proc rtree_nodedepth {db zTab iNode} {
+  set iDepth [rtree_depth $db $zTab]
+  
+  set ii $iNode
+  while {$ii != 1} {
+    set sql "SELECT parentnode FROM ${zTab}_parent WHERE nodeno = $ii"
+    set ii [db one $sql]
+    incr iDepth -1
+  }
+  
+  return $iDepth
+}
+
+# Return the number of dimensions of the rtree.
+#
+proc rtree_ndim {db zTab} {
+  set nDim [expr {(([llength [$db eval "pragma table_info($zTab)"]]/6)-1)/2}]
+}
+
+# Return the contents of rtree node $iNode.
+#
+proc rtree_node {db zTab iNode {iPrec 6}} {
+  set nDim [rtree_ndim $db $zTab]
+  set sql "
+    SELECT rtreenode($nDim, data) FROM ${zTab}_node WHERE nodeno = $iNode
+  "
+  set node [db one $sql]
+
+  set nCell [llength $node]
+  set nCoord [expr $nDim*2]
+  for {set ii 0} {$ii < $nCell} {incr ii} {
+    for {set jj 1} {$jj <= $nCoord} {incr jj} {
+      set newval [format "%.${iPrec}f" [lindex $node $ii $jj]]
+      lset node $ii $jj $newval
+    }
+  }
+  set node
+}
+
+proc rtree_mincells {db zTab} {
+  set n [$db one "select length(data) FROM ${zTab}_node LIMIT 1"]
+  set nMax [expr {int(($n-4)/(8+[rtree_ndim $db $zTab]*2*4))}]
+  return [expr {int($nMax/3)}]
+}
+
+# An integrity check for the rtree $zTab accessible via database 
+# connection $db.
+#
+proc rtree_check {db zTab} {
+  array unset ::checked
+ 
+  # Check each r-tree node.
+  set rc [catch {
+    rtree_node_check $db $zTab 1 [rtree_depth $db $zTab]
+  } msg]
+  if {$rc && $msg ne ""} { error $msg }
+
+  # Check that the _rowid and _parent tables have the right 
+  # number of entries.
+  set nNode   [$db one "SELECT count(*) FROM ${zTab}_node"]
+  set nRow    [$db one "SELECT count(*) FROM ${zTab}"]
+  set nRowid  [$db one "SELECT count(*) FROM ${zTab}_rowid"]
+  set nParent [$db one "SELECT count(*) FROM ${zTab}_parent"]
+
+  if {$nNode != ($nParent+1)} { 
+    error "Wrong number of entries in ${zTab}_parent"
+  }
+  if {$nRow != $nRowid} { 
+    error "Wrong number of entries in ${zTab}_rowid"
+  }
+  
+  return $rc
+}
+
+proc rtree_node_check {db zTab iNode iDepth} {
+  if {[info exists ::checked($iNode)]} { error "Second ref to $iNode" }
+  set ::checked($iNode) 1
+
+  set node [rtree_node $db $zTab $iNode]
+  if {$iNode!=1 && [llength $node]==0} { error "No such node: $iNode" }
+
+  if {$iNode != 1 && [llength $node]<[rtree_mincells $db $zTab]} {
+    puts "Node $iNode: Has only [llength $node] cells"
+    error ""
+  }
+  if {$iNode == 1 && [llength $node]==1 && [rtree_depth $db $zTab]>0} {
+    set depth [rtree_depth $db $zTab]
+    puts "Node $iNode: Has only 1 child (tree depth is $depth)"
+    error ""
+  }
+
+  set nDim [expr {([llength [lindex $node 0]]-1)/2}]
+
+  if {$iDepth > 0} {
+    set d [expr $iDepth-1]
+    foreach cell $node {
+      set shouldbe [rtree_node_check $db $zTab [lindex $cell 0] $d]
+      if {$cell ne $shouldbe} {
+        puts "Node $iNode: Cell is: {$cell}, should be {$shouldbe}"
+        error ""
+      }
+    }
+  }
+
+  set mapping_table "${zTab}_parent" 
+  set mapping_sql "SELECT parentnode FROM $mapping_table WHERE rowid = \$rowid"
+  if {$iDepth==0} { 
+    set mapping_table "${zTab}_rowid"
+    set mapping_sql "SELECT nodeno FROM $mapping_table WHERE rowid = \$rowid"
+  }
+  foreach cell $node {
+    set rowid [lindex $cell 0]
+    set mapping [db one $mapping_sql]
+    if {$mapping != $iNode} {
+      puts "Node $iNode: $mapping_table entry for cell $rowid is $mapping"
+      error ""
+    }
+  }
+
+  set ret [list $iNode]
+  for {set ii 1} {$ii <= $nDim*2} {incr ii} {
+    set f [lindex $node 0 $ii]
+    foreach cell $node {
+      set f2 [lindex $cell $ii]
+      if {($ii%2)==1 && $f2<$f} {set f $f2}
+      if {($ii%2)==0 && $f2>$f} {set f $f2}
+    }
+    lappend ret $f
+  }
+  return $ret
+}
+
+proc rtree_dump {db zTab} {
+  set zRet ""
+  set nDim [expr {(([llength [$db eval "pragma table_info($zTab)"]]/6)-1)/2}]
+  set sql "SELECT nodeno, rtreenode($nDim, data) AS node FROM ${zTab}_node"
+  $db eval $sql {
+    append zRet [format "% -10s %s\n" $nodeno $node]
+  }
+  set zRet
+}
+
+proc rtree_nodetreedump {db zTab zIndent iDepth iNode} {
+  set ret ""
+  set node [rtree_node $db $zTab $iNode 1]
+  append ret [format "%-3d %s%s\n" $iNode $zIndent $node]
+  if {$iDepth>0} {
+    foreach cell $node {
+      set i [lindex $cell 0]
+      append ret [rtree_nodetreedump $db $zTab "$zIndent  " [expr $iDepth-1] $i]
+    }
+  }
+  set ret
+}
+
+proc rtree_treedump {db zTab} {
+  set d [rtree_depth $db $zTab]
+  rtree_nodetreedump $db $zTab "" $d 1
+}
+
+proc do_rtree_integrity_test {tn tbl} {
+  uplevel [list do_execsql_test $tn.1 "SELECT rtreecheck('$tbl')" ok]
+  uplevel [list do_execsql_test $tn.2 "PRAGMA integrity_check" ok]
+}
diff --git a/ext/rtree/rtreecheck.test b/ext/rtree/rtreecheck.test
new file mode 100644
index 0000000000000000000000000000000000000000..d2c521cb8f4037c1f900e367cc01f89b56870fbb
--- /dev/null
+++ b/ext/rtree/rtreecheck.test
@@ -0,0 +1,204 @@
+# 2017 August 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+#
+
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source $testdir/tester.tcl
+set testprefix rtreecheck
+
+ifcapable !rtree {
+  finish_test
+  return
+}
+
+proc swap_int32 {blob i0 i1} {
+  binary scan $blob I* L
+
+  set a [lindex $L $i0]
+  set b [lindex $L $i1]
+
+  lset L $i0 $b
+  lset L $i1 $a
+
+  binary format I* $L
+}
+
+proc set_int32 {blob idx val} {
+  binary scan $blob I* L
+  lset L $idx $val
+  binary format I* $L
+}
+
+do_catchsql_test 1.0 {
+  SELECT rtreecheck();
+} {1 {wrong number of arguments to function rtreecheck()}}
+
+do_catchsql_test 1.1 {
+  SELECT rtreecheck(0,0,0);
+} {1 {wrong number of arguments to function rtreecheck()}}
+
+
+proc setup_simple_db {{module rtree}} {
+  reset_db
+  db func swap_int32 swap_int32
+  execsql "
+    CREATE VIRTUAL TABLE r1 USING $module (id, x1, x2, y1, y2);
+    INSERT INTO r1 VALUES(1,  5, 5, 5, 5);  --  3
+    INSERT INTO r1 VALUES(2,  6, 6, 6, 6);  --  9
+    INSERT INTO r1 VALUES(3,  7, 7, 7, 7);  -- 15
+    INSERT INTO r1 VALUES(4,  8, 8, 8, 8);  -- 21
+    INSERT INTO r1 VALUES(5,  9, 9, 9, 9);  -- 27
+  "
+  sqlite3_db_config db DEFENSIVE 0
+}
+
+setup_simple_db
+do_execsql_test 2.1 { 
+  SELECT rtreecheck('r1') 
+} {ok}
+
+do_execsql_test 2.2 {
+  UPDATE r1_node SET data = swap_int32(data, 3, 9);
+  UPDATE r1_node SET data = swap_int32(data, 23, 29);
+}
+
+do_execsql_test 2.3 { 
+  SELECT rtreecheck('r1') 
+} {{Dimension 0 of cell 0 on node 1 is corrupt
+Dimension 1 of cell 3 on node 1 is corrupt}}
+do_execsql_test 2.3b { 
+  PRAGMA integrity_check;
+} {{In RTree main.r1:
+Dimension 0 of cell 0 on node 1 is corrupt
+Dimension 1 of cell 3 on node 1 is corrupt}}
+
+setup_simple_db
+do_execsql_test 2.4 {
+  DELETE FROM r1_rowid WHERE rowid = 3;
+  SELECT rtreecheck('r1') 
+} {{Mapping (3 -> 1) missing from %_rowid table
+Wrong number of entries in %_rowid table - expected 5, actual 4}}
+do_execsql_test 2.4b {
+  PRAGMA integrity_check
+} {{In RTree main.r1:
+Mapping (3 -> 1) missing from %_rowid table
+Wrong number of entries in %_rowid table - expected 5, actual 4}}
+
+setup_simple_db
+do_execsql_test 2.5 {
+  UPDATE r1_rowid SET nodeno=2 WHERE rowid=3;
+  SELECT rtreecheck('r1') 
+} {{Found (3 -> 2) in %_rowid table, expected (3 -> 1)}}
+do_execsql_test 2.5b {
+  PRAGMA integrity_check
+} {{In RTree main.r1:
+Found (3 -> 2) in %_rowid table, expected (3 -> 1)}}
+
+reset_db
+do_execsql_test 3.0 { 
+  CREATE VIRTUAL TABLE r1 USING rtree_i32(id, x1, x2);
+  INSERT INTO r1 VALUES(1, 0x7FFFFFFF*-1, 0x7FFFFFFF);
+  INSERT INTO r1 VALUES(2, 0x7FFFFFFF*-1, 5);
+  INSERT INTO r1 VALUES(3, -5, 5);
+  INSERT INTO r1 VALUES(4, 5, 0x11111111);
+  INSERT INTO r1 VALUES(5, 5, 0x00800000);
+  INSERT INTO r1 VALUES(6, 5, 0x00008000);
+  INSERT INTO r1 VALUES(7, 5, 0x00000080);
+  INSERT INTO r1 VALUES(8, 5, 0x40490fdb);
+  INSERT INTO r1 VALUES(9, 0x7f800000, 0x7f900000);
+  SELECT rtreecheck('r1');
+  PRAGMA integrity_check;
+} {ok ok}
+
+do_execsql_test 3.1 { 
+  CREATE VIRTUAL TABLE r2 USING rtree_i32(id, x1, x2);
+  INSERT INTO r2 VALUES(2, -1*(1<<31), -1*(1<<31)+5);
+  SELECT rtreecheck('r2');
+  PRAGMA integrity_check;
+} {ok ok}
+
+sqlite3_db_config db DEFENSIVE 0
+do_execsql_test 3.2 {
+  BEGIN;
+    UPDATE r2_node SET data = X'123456';
+    SELECT rtreecheck('r2')!='ok';
+} {1}
+
+do_execsql_test 3.3 {
+  ROLLBACK;
+  UPDATE r2_node SET data = X'00001234';
+  SELECT rtreecheck('r2')!='ok';
+} {1}
+do_execsql_test 3.4 {
+  PRAGMA integrity_check;
+} {{In RTree main.r2:
+Node 1 is too small for cell count of 4660 (4 bytes)
+Wrong number of entries in %_rowid table - expected 0, actual 1}}
+
+do_execsql_test 4.0 {
+  CREATE TABLE notanrtree(i);
+  SELECT rtreecheck('notanrtree');
+} {{Schema corrupt or not an rtree}}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+db func set_int32 set_int32
+do_execsql_test 5.0 {
+  CREATE VIRTUAL TABLE r3 USING rtree_i32(id, x1, x2, y1, y2);
+  WITH x(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM x WHERE i<1000
+  )
+  INSERT INTO r3 SELECT i, i, i, i, i FROM x;
+}
+sqlite3_db_config db DEFENSIVE 0
+do_execsql_test 5.1 {
+  BEGIN;
+    UPDATE r3_node SET data = set_int32(data, 3, 5000);
+    UPDATE r3_node SET data = set_int32(data, 4, 5000);
+    SELECT rtreecheck('r3')=='ok'
+} 0
+do_execsql_test 5.2 {
+  ROLLBACK;
+  BEGIN;
+    UPDATE r3_node SET data = set_int32(data, 3, 0);
+    UPDATE r3_node SET data = set_int32(data, 4, 0);
+    SELECT rtreecheck('r3')=='ok'
+} 0
+
+#-------------------------------------------------------------------------
+# dbsqlfuzz 4a1399d39bf9feccbf6b290da51d3b30103a4bf6
+#
+reset_db
+do_execsql_test 6.0 {
+  PRAGMA encoding = 'utf16';
+  CREATE VIRTUAL TABLE t1 USING rtree(id, x, y);
+}
+db close
+sqlite3 db test.db
+
+if {[permutation]=="inmemory_journal"} {
+  # This doesn't hit an SQLITE_LOCKED in this permutation as the schema
+  # has already been loaded. 
+  do_catchsql_test 6.1.inmemory_journal {
+    SELECT ( 'elvis' IN(SELECT rtreecheck('t1')) ) FROM (SELECT 1) GROUP BY 1;
+  } {0 0}
+} else {
+  do_catchsql_test 6.1 {
+    SELECT ( 'elvis' IN(SELECT rtreecheck('t1')) ) FROM (SELECT 1) GROUP BY 1;
+  } {0 0}
+}
+
+finish_test
diff --git a/ext/rtree/rtreecirc.test b/ext/rtree/rtreecirc.test
new file mode 100644
index 0000000000000000000000000000000000000000..d77ed04b3de667a393827c291ecaef1cc60467d8
--- /dev/null
+++ b/ext/rtree/rtreecirc.test
@@ -0,0 +1,66 @@
+# 2018 Dec 22
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS5 module.
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+}
+source [file join [file dirname [info script]] rtree_util.tcl]
+source $testdir/tester.tcl
+set testprefix rtreecirc
+
+ifcapable !rtree {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE rt USING rtree(id, x1, x2, y1, y2);
+  SELECT name FROM sqlite_master ORDER BY 1;
+} {
+  rt rt_node rt_parent rt_rowid
+}
+db_save_and_close
+
+foreach {tn schema sql} {
+  1 {
+    CREATE TRIGGER tr1 AFTER INSERT ON rt_node BEGIN
+      SELECT * FROM rt;
+    END;
+  } {
+    INSERT INTO rt VALUES(1, 2, 3, 4, 5);
+  }
+  2 {
+    CREATE TRIGGER tr1 AFTER INSERT ON rt_parent BEGIN
+      SELECT * FROM rt;
+    END;
+  } {
+    INSERT INTO rt VALUES(1, 2, 3, 4, 5);
+  }
+  3 {
+    CREATE TRIGGER tr1 AFTER INSERT ON rt_rowid BEGIN
+      SELECT * FROM rt;
+    END;
+  } {
+    INSERT INTO rt VALUES(1, 2, 3, 4, 5);
+  }
+} {
+  db_restore_and_reopen
+  do_execsql_test  1.1.$tn.1 $schema
+  do_catchsql_test 1.1.$tn.2 $sql {1 {no such table: main.rt}}
+  db close
+}
+
+
+finish_test
+
diff --git a/ext/rtree/rtreeconnect.test b/ext/rtree/rtreeconnect.test
new file mode 100644
index 0000000000000000000000000000000000000000..16d04d9a047ad7bb19a43696a27f6a9ce2c62905
--- /dev/null
+++ b/ext/rtree/rtreeconnect.test
@@ -0,0 +1,56 @@
+# 2017 August 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# The focus of this file is testing the r-tree extension. Specifically,
+# the impact of an SQLITE_SCHEMA error within the rtree module xConnect
+# callback.
+#
+
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source $testdir/tester.tcl
+set testprefix rtreeconnect
+
+ifcapable !rtree {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE r1 USING rtree(id, x1, x2, y1, y2);
+  CREATE TABLE t1(id, x1, x2, y1, y2);
+  CREATE TABLE log(l);
+
+  CREATE TRIGGER tr1 AFTER INSERT ON t1 BEGIN
+    INSERT INTO r1 VALUES(new.id, new.x1, new.x2, new.y1, new.y2);
+    INSERT INTO log VALUES('r1: ' || new.id);
+  END;
+}
+
+db close
+sqlite3 db  test.db
+sqlite3 db2 test.db
+
+do_test 1.1 {
+  db eval { INSERT INTO log VALUES('startup'); }
+  db2 eval { CREATE TABLE newtable(x,y); }
+} {}
+
+do_execsql_test 1.2 {
+  INSERT INTO t1 VALUES(1, 2, 3, 4, 5);
+}
+
+db2 close
+db close
+
+finish_test
diff --git a/ext/rtree/rtreedoc.test b/ext/rtree/rtreedoc.test
new file mode 100644
index 0000000000000000000000000000000000000000..4e610db8a2e7ea6a0d54decb449fbe861ef5fdb5
--- /dev/null
+++ b/ext/rtree/rtreedoc.test
@@ -0,0 +1,1593 @@
+# 2021 September 13
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# The focus of this file is testing the r-tree extension.
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+}
+source [file join [file dirname [info script]] rtree_util.tcl]
+source $testdir/tester.tcl
+set testprefix rtreedoc
+
+ifcapable !rtree {
+  finish_test
+  return
+}
+
+# This command returns the number of columns in table $tbl within the
+# database opened by database handle $db
+proc column_count {db tbl} {
+  set nCol 0
+  $db eval "PRAGMA table_info = $tbl" { incr nCol }
+  return $nCol
+}
+
+proc column_name_list {db tbl} {
+  set lCol [list]
+  $db eval "PRAGMA table_info = $tbl" { 
+    lappend lCol $name
+  }
+  return $lCol
+}
+unset -nocomplain res
+
+#-------------------------------------------------------------------------
+#-------------------------------------------------------------------------
+# Section 3 of documentation.
+#-------------------------------------------------------------------------
+#-------------------------------------------------------------------------
+set testprefix rtreedoc-1
+
+# EVIDENCE-OF: R-15060-13876 A 1-dimensional R*Tree thus has 3 columns.
+do_execsql_test 1.1.1 { CREATE VIRTUAL TABLE rt1 USING rtree(id, x1,x2) }
+do_test         1.1.2 { column_count db rt1 } 3
+
+# EVIDENCE-OF: R-19353-19546 A 2-dimensional R*Tree has 5 columns.
+do_execsql_test 1.2.1 { CREATE VIRTUAL TABLE rt2 USING rtree(id,x1,x2, y1,y2) }
+do_test         1.2.2 { column_count db rt2 } 5
+
+# EVIDENCE-OF: R-13615-19528 A 3-dimensional R*Tree has 7 columns.
+do_execsql_test 1.3.1 { 
+  CREATE VIRTUAL TABLE rt3 USING rtree(id, x1,x2, y1,y2, z1,z2) 
+}
+do_test         1.3.2 { column_count db rt3 } 7
+
+# EVIDENCE-OF: R-53479-41922 A 4-dimensional R*Tree has 9 columns.
+do_execsql_test 1.4.1 { 
+  CREATE VIRTUAL TABLE rt4 USING rtree(id, x1,x2, y1,y2, z1,z2, v1,v2) 
+}
+do_test         1.4.2 { column_count db rt4 } 9
+
+# EVIDENCE-OF: R-13981-28768 And a 5-dimensional R*Tree has 11 columns.
+do_execsql_test 1.5.1 { 
+  CREATE VIRTUAL TABLE rt5 USING rtree(id, x1,x2, y1,y2, z1,z2, v1,v2, w1,w2)
+}
+do_test         1.5.2 { column_count db rt5 } 11
+
+
+# Attempt to create r-tree tables with 6 and 7 dimensions.
+#
+# EVIDENCE-OF: R-61533-25862 The SQLite R*Tree implementation does not
+# support R*Trees wider than 5 dimensions.
+do_catchsql_test 2.1.1 { 
+  CREATE VIRTUAL TABLE rt6 USING rtree(
+    id, x1,x2, y1,y2, z1,z2, v1,v2, w1,w2, a1,a2
+  )
+} {1 {Too many columns for an rtree table}}
+do_catchsql_test 2.1.2 { 
+  CREATE VIRTUAL TABLE rt6 USING rtree(
+    id, x1,x2, y1,y2, z1,z2, v1,v2, w1,w2, a1,a2, b1, b2
+  )
+} {1 {Too many columns for an rtree table}}
+
+# Attempt to create r-tree tables with no columns, a single column, or
+# an even number of columns. This and the tests above establish that:
+#
+# EVIDENCE-OF: R-16717-50504 Each R*Tree index is a virtual table with
+# an odd number of columns between 3 and 11.
+foreach {tn cols err} {
+  1 ""                        "Too few columns for an rtree table"
+  2 "x"                       "Too few columns for an rtree table"
+  3 "x,y"                     "Too few columns for an rtree table"
+  4 "a,b,c,d"                 "Wrong number of columns for an rtree table"
+  5 "a,b,c,d,e,f"             "Wrong number of columns for an rtree table"
+  6 "a,b,c,d,e,f,g,h"         "Wrong number of columns for an rtree table"
+  7 "a,b,c,d,e,f,g,h,i,j"     "Wrong number of columns for an rtree table"
+  8 "a,b,c,d,e,f,g,h,i,j,k,l" "Too many columns for an rtree table"
+} {
+  do_catchsql_test 3.$tn "
+    CREATE VIRTUAL TABLE xyz USING rtree($cols)
+  " [list 1 $err]
+}
+
+# EVIDENCE-OF: R-17874-21123 The first column of an SQLite R*Tree is
+# similar to an integer primary key column of a normal SQLite table.
+#
+# EVIDENCE-OF: R-46619-65417 The first column is always a 64-bit signed
+# integer primary key.
+#
+# EVIDENCE-OF: R-46866-24036 It may only store a 64-bit signed integer
+# value.
+#
+# EVIDENCE-OF: R-00250-64843 If an attempt is made to insert any other
+# non-integer value into this column, the r-tree module silently
+# converts it to an integer before writing it into the database.
+#
+do_execsql_test 4.0 { CREATE VIRTUAL TABLE rt USING rtree(id, x1, x2) }
+foreach {tn val res} {
+  1 10    10
+  2 10.6  10
+  3 10.99 10
+  4 '123' 123
+  5 X'313233'  123
+  6 -10   -10
+  7  9223372036854775807 9223372036854775807 
+  8 -9223372036854775808 -9223372036854775808 
+  9  '9223372036854775807' 9223372036854775807
+  10  '-9223372036854775808' -9223372036854775808
+  11  'hello+world' 0
+} {
+  do_execsql_test 4.$tn.1 "
+    DELETE FROM rt;
+    INSERT INTO rt VALUES($val, 10, 20);
+  "
+  do_execsql_test 4.$tn.2 {
+    SELECT typeof(id), id FROM rt
+  } [list integer $res]
+}
+
+# EVIDENCE-OF: R-15544-29079 Inserting a NULL value into this column
+# causes SQLite to automatically generate a new unique primary key
+# value.
+do_execsql_test 5.1 {
+  DELETE FROM rt;
+  INSERT INTO rt VALUES(100, 1, 2);
+  INSERT INTO rt VALUES(NULL, 1, 2);
+}
+do_execsql_test 5.2 { SELECT id FROM rt } {100 101}
+do_execsql_test 5.3 { 
+  INSERT INTO rt VALUES(9223372036854775807, 1, 2);
+  INSERT INTO rt VALUES(NULL, 1, 2);
+}
+do_execsql_test 5.4 {
+  SELECT count(*) FROM rt;
+} 4
+do_execsql_test 5.5 {
+  SELECT id IN(100, 101, 9223372036854775807) FROM rt ORDER BY 1;
+} {0 1 1 1}
+
+
+# EVIDENCE-OF: R-64317-38978 The other columns are pairs, one pair per
+# dimension, containing the minimum and maximum values for that
+# dimension, respectively.
+#
+# Show this by observing that attempts to insert rows with max>min fail.
+#
+do_execsql_test 6.1 {
+  CREATE VIRTUAL TABLE rtF USING rtree(id, x1,x2, y1,y2);
+  CREATE VIRTUAL TABLE rtI USING rtree_i32(id, x1,x2, y1,y2, z1,z2);
+}
+foreach {tn x1 x2 y1 y2 ok} {
+  1   10.3 20.1   30.9 40.2   1
+  2   10.3 20.1   40.2 30.9   0
+  3   10.3 30.9   20.1 40.2   1
+  4   20.1 10.3   30.9 40.2   0
+} {
+  do_test 6.2.$tn {
+    catch { db eval { INSERT INTO rtF VALUES(NULL, $x1, $x2, $y1, $y2) } }
+  } [expr $ok==0]
+}
+foreach {tn x1 x2 y1 y2 z1 z2 ok} {
+  1   10 20   30 40  50 60  1
+  2   10 20   30 40  60 50  0
+  3   10 20   30 50  40 60  1
+  4   10 20   40 30  50 60  0
+  5   10 30   20 40  50 60  1
+  6   20 10   30 40  50 60  0
+} {
+  do_test 6.3.$tn {
+    catch { db eval { INSERT INTO rtI VALUES(NULL,$x1,$x2,$y1,$y2,$z1,$z2) } }
+  } [expr $ok==0]
+}
+
+# EVIDENCE-OF: R-08054-15429 The min/max-value pair columns are stored
+# as 32-bit floating point values for "rtree" virtual tables or as
+# 32-bit signed integers in "rtree_i32" virtual tables.
+#
+# Show this by showing that large values are rounded in ways consistent
+# with those two 32-bit types.
+do_execsql_test 7.1 {
+  DELETE FROM rtI;
+  INSERT INTO rtI VALUES(
+    0, -2000000000, 2000000000, -5000000000, 5000000000,
+    -1000000000000, 10000000000000
+  );
+  SELECT * FROM rtI;
+} {
+  0 -2000000000 2000000000 -705032704 705032704 727379968 1316134912
+}
+do_execsql_test 7.2 {
+  DELETE FROM rtF;
+  INSERT INTO rtF VALUES(
+    0, -2000000000, 2000000000, 
+    -1000000000000, 10000000000000
+  );
+  SELECT * FROM rtF;
+} {
+  0 -2000000000.0 2000000000.0 -1000000126976.0 10000000876544.0
+}
+
+# EVIDENCE-OF: R-47371-54529 Unlike regular SQLite tables which can
+# store data in a variety of datatypes and formats, the R*Tree rigidly
+# enforce these storage types.
+#
+# EVIDENCE-OF: R-39153-14977 If any other type of value is inserted into
+# such a column, the r-tree module silently converts it to the required
+# type before writing the new record to the database.
+do_execsql_test 8.1 {
+  DELETE FROM rtI;
+  INSERT INTO rtI VALUES(
+    1, 'hello world', X'616263', NULL, 44.5, 1000, 9999.9999
+  );
+  SELECT * FROM rtI;
+} {
+  1   0 0    0 44    1000 9999
+}
+
+do_execsql_test 8.2 {
+  SELECT 
+    typeof(x1), typeof(x2), typeof(y1), typeof(y2), typeof(z1), typeof(z2)
+  FROM rtI
+} {integer integer integer integer integer integer}
+
+do_execsql_test 8.3 {
+  DELETE FROM rtF;
+  INSERT INTO rtF VALUES(
+    1, 'hello world', X'616263', NULL, 44
+  );
+  SELECT * FROM rtF;
+} {
+  1   0.0 0.0    0.0 44.0
+}
+do_execsql_test 8.4 {
+  SELECT 
+    typeof(x1), typeof(x2), typeof(y1), typeof(y2)
+  FROM rtF
+} {real real real real}
+
+
+
+
+#-------------------------------------------------------------------------
+#-------------------------------------------------------------------------
+# Section 3.1 of documentation.
+#-------------------------------------------------------------------------
+#-------------------------------------------------------------------------
+set testprefix rtreedoc-2
+reset_db
+
+foreach {tn name clist} {
+  1 t1 "id x1 x2"
+  2 t2 "id x1 x2   y1 y2   z1 z2"
+} {
+# EVIDENCE-OF: R-15142-18077 A new R*Tree index is created as follows:
+# CREATE VIRTUAL TABLE <name> USING rtree(<column-names>);
+  do_execsql_test 1.$tn.1 "
+    CREATE VIRTUAL TABLE $name USING rtree([join $clist ,])
+  "
+
+# EVIDENCE-OF: R-51698-09302 The <name> is the name your
+# application chooses for the R*Tree index and <column-names> is a
+# comma separated list of between 3 and 11 columns.
+  do_test 1.$tn.2 { column_name_list db $name } [list {*}$clist]
+
+# EVIDENCE-OF: R-50130-53472 The virtual <name> table creates
+# three shadow tables to actually store its content.
+  do_execsql_test 1.$tn.3 {
+    SELECT count(*) FROM sqlite_schema
+  } [expr 1+3]
+
+# EVIDENCE-OF: R-45256-35998 The names of these shadow tables are:
+# <name>_node <name>_rowid <name>_parent
+  do_execsql_test 1.$tn.4 {
+    SELECT name FROM sqlite_schema WHERE rootpage>0 ORDER BY 1
+  } [list ${name}_node ${name}_parent ${name}_rowid]
+
+  do_execsql_test 1.$tn.5 "DROP TABLE $name"
+}
+
+# EVIDENCE-OF: R-11241-54478 As an example, consider creating a
+# two-dimensional R*Tree index for use in spatial queries: CREATE
+# VIRTUAL TABLE demo_index USING rtree( id, -- Integer primary key minX,
+# maxX, -- Minimum and maximum X coordinate minY, maxY -- Minimum and
+# maximum Y coordinate );
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE demo_index USING rtree(
+      id,              -- Integer primary key
+      minX, maxX,      -- Minimum and maximum X coordinate
+      minY, maxY       -- Minimum and maximum Y coordinate
+  );
+  INSERT INTO demo_index VALUES(1,2,3,4,5);
+  INSERT INTO demo_index VALUES(6,7,8,9,10);
+}
+
+# EVIDENCE-OF: R-02287-33529 The shadow tables are ordinary SQLite data
+# tables.
+#
+# Ordinary tables. With ordinary sqlite_schema entries.
+do_execsql_test 2.1 {
+  SELECT type, name, sql FROM sqlite_schema WHERE sql NOT LIKE '%virtual%'
+} {
+  table demo_index_rowid 
+    {CREATE TABLE "demo_index_rowid"(rowid INTEGER PRIMARY KEY,nodeno)} 
+  table demo_index_node
+    {CREATE TABLE "demo_index_node"(nodeno INTEGER PRIMARY KEY,data)} 
+  table demo_index_parent
+    {CREATE TABLE "demo_index_parent"(nodeno INTEGER PRIMARY KEY,parentnode)}
+}
+
+# EVIDENCE-OF: R-10863-13089 You can query them directly if you like,
+# though this unlikely to reveal anything particularly useful.
+#
+# Querying:
+do_execsql_test 2.2 {
+  SELECT count(*) FROM demo_index_node;
+  SELECT count(*) FROM demo_index_rowid;
+  SELECT count(*) FROM demo_index_parent;
+} {1 2 0}
+
+# EVIDENCE-OF: R-05650-46070 And you can UPDATE, DELETE, INSERT or even
+# DROP the shadow tables, though doing so will corrupt your R*Tree
+# index.
+do_execsql_test 2.3 {
+  DELETE FROM demo_index_rowid;
+  INSERT INTO demo_index_parent VALUES(2, 3);
+  UPDATE demo_index_node SET data = 'hello world'
+}
+do_catchsql_test 2.4 {
+  SELECT * FROM demo_index WHERE minX>10 AND maxX<30
+} {1 {database disk image is malformed}}
+do_execsql_test 2.5 {
+  DROP TABLE demo_index_rowid
+}
+
+#-------------------------------------------------------------------------
+#-------------------------------------------------------------------------
+# Section 3.1.1 of documentation.
+#-------------------------------------------------------------------------
+#-------------------------------------------------------------------------
+set testprefix rtreedoc-3
+reset_db
+
+# EVIDENCE-OF: R-44253-50720 In the argments to "rtree" in the CREATE
+# VIRTUAL TABLE statement, the names of the columns are taken from the
+# first token of each argument. All subsequent tokens within each
+# argument are silently ignored.
+#
+foreach {tn cols lCol} {
+  1 {(id TEXT, x1 TEXT, x2 TEXT, y1 TEXT, y2 TEXT)} {id x1 x2 y1 y2}
+  2 {(id TEXT, x1 UNIQUE, x2 TEXT, y1 NOT NULL, y2 TEXT)} {id x1 x2 y1 y2}
+  3 {(id, x1 DEFAULT 4, x2 TEXT, y1 NOT NULL, y2 TEXT)} {id x1 x2 y1 y2}
+} {
+  do_execsql_test 1.$tn.1 " CREATE VIRTUAL TABLE abc USING rtree $cols "
+  do_test 1.$tn.2 { column_name_list db abc } $lCol
+
+# EVIDENCE-OF: R-52032-06717 This means, for example, that if you try to
+# give a column a type affinity or add a constraint such as UNIQUE or
+# NOT NULL or DEFAULT to a column, those extra tokens are accepted as
+# valid, but they do not change the behavior of the rtree.
+
+  # Show there are no UNIQUE constraints
+  do_execsql_test 1.$tn.3 {
+    INSERT INTO abc VALUES(1, 10.0, 20.0, 10.0, 20.0);
+    INSERT INTO abc VALUES(2, 10.0, 20.0, 10.0, 20.0);
+  }
+
+  # Show the default values have not been modified
+  do_execsql_test 1.$tn.4 {
+    INSERT INTO abc DEFAULT VALUES;
+    SELECT * FROM abc WHERE rowid NOT IN (1,2)
+  } {3 0.0 0.0 0.0 0.0}
+
+  # Show that there are no NOT NULL constraints
+  do_execsql_test 1.$tn.5 {
+    INSERT INTO abc VALUES(NULL, NULL, NULL, NULL, NULL);
+    SELECT * FROM abc WHERE rowid NOT IN (1,2,3)
+  } {4 0.0 0.0 0.0 0.0}
+
+# EVIDENCE-OF: R-06893-30579 In an RTREE virtual table, the first column
+# always has a type affinity of INTEGER and all other data columns have
+# a type affinity of REAL.
+  do_execsql_test 1.$tn.5 {
+    INSERT INTO abc VALUES('5', '5', '5', '5', '5');
+    SELECT * FROM abc WHERE rowid NOT IN (1,2,3,4)
+  } {5 5.0 5.0 5.0 5.0}
+  do_execsql_test 1.$tn.6 {
+    SELECT type FROM pragma_table_info('abc') ORDER BY cid
+  } {INT REAL REAL REAL REAL}
+
+  do_execsql_test 1.$tn.7 " CREATE VIRTUAL TABLE abc2 USING rtree_i32 $cols "
+
+# EVIDENCE-OF: R-06224-52418 In an RTREE_I32 virtual table, all columns
+# have type affinity of INTEGER.
+  do_execsql_test 1.$tn.8 {
+    INSERT INTO abc2 VALUES('6.0', '6.0', '6.0', '6.0', '6.0');
+    SELECT * FROM abc2
+  } {6 6 6 6 6}
+  do_execsql_test 1.$tn.9 {
+    SELECT type FROM pragma_table_info('abc2') ORDER BY cid
+  } {INT INT INT INT INT}
+
+
+  do_execsql_test 1.$tn.10 {
+    DROP TABLE abc;
+    DROP TABLE abc2;
+  }
+}
+
+#-------------------------------------------------------------------------
+#-------------------------------------------------------------------------
+# Section 3.2 of documentation.
+#-------------------------------------------------------------------------
+#-------------------------------------------------------------------------
+set testprefix rtreedoc-4
+reset_db
+
+# EVIDENCE-OF: R-36195-31555 The usual INSERT, UPDATE, and DELETE
+# commands work on an R*Tree index just like on regular tables.
+#
+# Create a regular table and an rtree table. Perform INSERT, UPDATE and
+# DELETE operations, then observe that the contents of the two tables
+# are identical.
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE rt USING rtree(id, x1, x2);
+  CREATE TABLE t1(id INTEGER PRIMARY KEY, x1 REAL, x2 REAL);
+}
+foreach {tn sql} {
+  1 "INSERT INTO %TBL% VALUES(5, 11,12)"
+  2 "INSERT INTO %TBL% VALUES(11, -11,14.5)"
+  3 "UPDATE %TBL% SET x1=-99 WHERE id=11"
+  4 "DELETE FROM %TBL% WHERE x2=14.5"
+  5 "DELETE FROM %TBL%"
+} {
+  set sql1 [string map {%TBL% rt} $sql]
+  set sql2 [string map {%TBL% t1} $sql]
+  do_execsql_test 1.$tn.0 $sql1
+  do_execsql_test 1.$tn.1 $sql2
+
+  set data1 [execsql {SELECT * FROM rt ORDER BY 1}]
+  set data2 [execsql {SELECT * FROM t1 ORDER BY 1}]
+
+  set res [expr {$data1==$data2}]
+  do_test 1.$tn.2 {set res} 1 
+}
+
+# EVIDENCE-OF: R-56987-45305
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE demo_index USING rtree(
+      id,              -- Integer primary key
+      minX, maxX,      -- Minimum and maximum X coordinate
+      minY, maxY       -- Minimum and maximum Y coordinate
+  );
+
+  INSERT INTO demo_index VALUES
+    (28215, -80.781227, -80.604706, 35.208813, 35.297367),
+    (28216, -80.957283, -80.840599, 35.235920, 35.367825),
+    (28217, -80.960869, -80.869431, 35.133682, 35.208233),
+    (28226, -80.878983, -80.778275, 35.060287, 35.154446),
+    (28227, -80.745544, -80.555382, 35.130215, 35.236916),
+    (28244, -80.844208, -80.841988, 35.223728, 35.225471),
+    (28262, -80.809074, -80.682938, 35.276207, 35.377747),
+    (28269, -80.851471, -80.735718, 35.272560, 35.407925),
+    (28270, -80.794983, -80.728966, 35.059872, 35.161823),
+    (28273, -80.994766, -80.875259, 35.074734, 35.172836),
+    (28277, -80.876793, -80.767586, 35.001709, 35.101063),
+    (28278, -81.058029, -80.956375, 35.044701, 35.223812),
+    (28280, -80.844208, -80.841972, 35.225468, 35.227203),
+    (28282, -80.846382, -80.844193, 35.223972, 35.225655);
+}
+
+#-------------------------------------------------------------------------
+#-------------------------------------------------------------------------
+# Section 3.3 of documentation.
+#-------------------------------------------------------------------------
+#-------------------------------------------------------------------------
+set testprefix rtreedoc-5
+
+do_execsql_test 1.0 {
+  INSERT INTO demo_index 
+    SELECT NULL, minX, maxX, minY+0.2, maxY+0.2 FROM demo_index;
+  INSERT INTO demo_index 
+    SELECT NULL, minX+0.2, maxX+0.2, minY, maxY FROM demo_index;
+  INSERT INTO demo_index 
+    SELECT NULL, minX, maxX, minY+0.4, maxY+0.4 FROM demo_index;
+  INSERT INTO demo_index 
+    SELECT NULL, minX+0.4, maxX+0.4, minY, maxY FROM demo_index;
+  INSERT INTO demo_index 
+    SELECT NULL, minX, maxX, minY+0.8, maxY+0.8 FROM demo_index;
+  INSERT INTO demo_index 
+    SELECT NULL, minX+0.8, maxX+0.8, minY, maxY FROM demo_index;
+
+  SELECT count(*) FROM demo_index;
+} {896}
+
+proc do_vmstep_test {tn sql expr} {
+  execsql $sql
+  set step [db status vmstep]
+  do_test $tn.$step "expr {[subst $expr]}" 1
+}
+
+# EVIDENCE-OF: R-45880-07724 Any valid query will work against an R*Tree
+# index.
+do_execsql_test 1.1.0 {
+  CREATE TABLE demo_tbl AS SELECT * FROM demo_index;
+}
+foreach {tn sql} {
+  1  {SELECT * FROM %TBL% ORDER BY 1}
+  2  {SELECT max(minX) FROM %TBL% ORDER BY 1}
+  3  {SELECT max(minX) FROM %TBL% GROUP BY round(minY) ORDER BY 1}
+} {
+  set sql1 [string map {%TBL% demo_index} $sql]
+  set sql2 [string map {%TBL% demo_tbl} $sql]
+
+  do_execsql_test 1.1.$tn $sql1 [execsql $sql2]
+}
+
+# EVIDENCE-OF: R-60814-18273 The R*Tree implementation just makes some
+# kinds of queries especially efficient.
+#
+# The second query is more efficient than the first.
+do_vmstep_test 1.2.1 {SELECT * FROM demo_index WHERE +rowid=28269} {$step>2000}
+do_vmstep_test 1.2.2 {SELECT * FROM demo_index WHERE rowid=28269} {$step<100}
+
+# EVIDENCE-OF: R-37800-50174 Queries against the primary key are
+# efficient: SELECT * FROM demo_index WHERE id=28269;
+do_vmstep_test 2.2 { SELECT * FROM demo_index WHERE id=28269 } {$step < 100}
+
+# EVIDENCE-OF: R-35847-18866 The big reason for using an R*Tree is so
+# that you can efficiently do range queries against the coordinate
+# ranges.
+#
+# EVIDENCE-OF: R-49927-54202
+do_vmstep_test 2.3 { 
+  SELECT id FROM demo_index
+    WHERE minX<=-80.77470 AND maxX>=-80.77470
+    AND minY<=35.37785  AND maxY>=35.37785;
+} {$step < 100}
+
+# EVIDENCE-OF: R-12823-37176 The query above will quickly locate all
+# zipcodes that contain the SQLite main office in their bounding box,
+# even if the R*Tree contains many entries.
+#
+do_execsql_test 2.4 { 
+  SELECT id FROM demo_index
+    WHERE minX<=-80.77470 AND maxX>=-80.77470
+    AND minY<=35.37785  AND maxY>=35.37785;
+} {
+  28322 28269 
+}
+
+# EVIDENCE-OF: R-07351-00257 For example, to find all zipcode bounding
+# boxes that overlap with the 28269 zipcode: SELECT A.id FROM demo_index
+# AS A, demo_index AS B WHERE A.maxX>=B.minX AND A.minX<=B.maxX
+# AND A.maxY>=B.minY AND A.minY<=B.maxY AND B.id=28269;
+#
+# Also check that it is efficient
+#
+# EVIDENCE-OF: R-39094-01937 This second query will find both 28269
+# entry (since every bounding box overlaps with itself) and also other
+# zipcode that is close enough to 28269 that their bounding boxes
+# overlap.
+#
+# 28269 is there in the result.
+#
+do_vmstep_test 2.5.1 {
+  SELECT A.id FROM demo_index AS A, demo_index AS B
+    WHERE A.maxX>=B.minX AND A.minX<=B.maxX
+    AND A.maxY>=B.minY AND A.minY<=B.maxY
+    AND B.id=28269
+} {$step < 100}
+do_execsql_test 2.5.2 {
+  SELECT A.id FROM demo_index AS A, demo_index AS B
+    WHERE A.maxX>=B.minX AND A.minX<=B.maxX
+    AND A.maxY>=B.minY AND A.minY<=B.maxY
+    AND B.id=28269 ORDER BY +A.id;
+} {
+  28215
+  28216
+  28262
+  28269
+  28286
+  28287
+  28291
+  28293
+  28298
+  28313
+  28320
+  28322
+  28336
+}
+
+# EVIDENCE-OF: R-02723-34107 Note that it is not necessary for all
+# coordinates in an R*Tree index to be constrained in order for the
+# index search to be efficient.
+#
+# EVIDENCE-OF: R-22490-27246 One might, for example, want to query all
+# objects that overlap with the 35th parallel: SELECT id FROM demo_index
+# WHERE maxY>=35.0 AND minY<=35.0;
+do_vmstep_test 2.6.1 {
+  SELECT id FROM demo_index
+   WHERE maxY>=35.0  AND minY<=35.0;
+} {$step < 100}
+do_execsql_test 2.6.2 {
+  SELECT id FROM demo_index
+   WHERE maxY>=35.0  AND minY<=35.0;
+} {}
+
+
+#-------------------------------------------------------------------------
+#-------------------------------------------------------------------------
+# Section 3.4 of documentation.
+#-------------------------------------------------------------------------
+#-------------------------------------------------------------------------
+set testprefix rtreedoc-6
+reset_db
+
+# EVIDENCE-OF: R-08327-00674 By default, coordinates are stored in an
+# R*Tree using 32-bit floating point values.
+#
+# EVIDENCE-OF: R-22000-53613 The default virtual table ("rtree") stores
+# coordinates as single-precision (4-byte) floating point numbers.
+#
+# Show this by showing that rounding is consistent with 32-bit float
+# rounding.
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE rt USING rtree(id, a,b);
+}
+do_execsql_test 1.1 {
+  INSERT INTO rt VALUES(14, -1000000000000, 1000000000000);
+  SELECT * FROM rt;
+} {14 -1000000126976.0 1000000126976.0}
+
+# EVIDENCE-OF: R-39127-51288 When a coordinate cannot be exactly
+# represented by a 32-bit floating point number, the lower-bound
+# coordinates are rounded down and the upper-bound coordinates are
+# rounded up.
+foreach {tn val} {
+  1 100000000000
+  2 200000000000
+  3 300000000000
+  4 400000000000
+
+  5 -100000000000
+  6 -200000000000
+  7 -300000000000
+  8 -400000000000
+} {
+  set val [expr $val]
+  do_execsql_test 2.$tn.0 {DELETE FROM rt}
+  do_execsql_test 2.$tn.1 {INSERT INTO rt VALUES(23, $val, $val)}
+  do_execsql_test 2.$tn.2 {
+    SELECT $val>=a, $val<=b, a!=b FROM rt
+  } {1 1 1}
+}
+
+do_execsql_test 3.0 {
+  DROP TABLE rt;
+  CREATE VIRTUAL TABLE rt USING rtree(id, x1,x2, y1,y2);
+}
+
+# EVIDENCE-OF: R-45870-62834 Thus, bounding boxes might be slightly
+# larger than specified, but will never be any smaller.
+foreach {tn x1 x2 y1 y2} {
+  1 100000000000 200000000000 300000000000 400000000000
+} {
+  set val [expr $val]
+  do_execsql_test 3.$tn.0 {DELETE FROM rt}
+  do_execsql_test 3.$tn.1 {INSERT INTO rt VALUES(23, $x1, $x2, $y1, $y2)}
+  do_execsql_test 3.$tn.2 {
+    SELECT (x2-x1)*(y2-y1) >= ($x2-$x1)*($y2-$y1) FROM rt
+  } {1}
+}
+
+#-------------------------------------------------------------------------
+#-------------------------------------------------------------------------
+# Section 3.5 of documentation.
+#-------------------------------------------------------------------------
+#-------------------------------------------------------------------------
+set testprefix rtreedoc-7
+reset_db
+
+# EVIDENCE-OF: R-55979-39402 It is the nature of the Guttman R-Tree
+# algorithm that any write might radically restructure the tree, and in
+# the process change the scan order of the nodes.
+#
+# In the test below, the INSERT marked "THIS INSERT!!" does not affect
+# the results of queries with an ORDER BY, but does affect the results
+# of one without an ORDER BY. Therefore the INSERT changed the scan 
+# order.
+do_execsql_test 1.0 { 
+  CREATE VIRTUAL TABLE rt USING rtree(id, minX, maxX);
+  WITH s(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<51
+  )
+  INSERT INTO rt SELECT NULL, i%10, (i%10)+5 FROM s
+}
+do_execsql_test 1.1 { SELECT count(*) FROM rt_node } 1
+do_test 1.2 {
+  set res1 [db eval {SELECT * FROM rt WHERE maxX < 30}]
+  set res1o [db eval {SELECT * FROM rt WHERE maxX < 30 ORDER BY +id}]
+
+  db eval { INSERT INTO rt VALUES(NULL, 50, 50) }   ;# THIS INSERT!!
+
+  set res2 [db eval {SELECT * FROM rt WHERE maxX < 30}]
+  set res2o [db eval {SELECT * FROM rt WHERE maxX < 30 ORDER BY +id}]
+  list [expr {$res1==$res2}] [expr {$res1o==$res2o}]
+} {0 1}
+
+do_execsql_test 1.3 { SELECT count(*) FROM rt_node } 3
+
+# EVIDENCE-OF: R-00683-48865 For this reason, it is not generally
+# possible to modify the R-Tree in the middle of a query of the R-Tree.
+# Attempts to do so will fail with a SQLITE_LOCKED "database table is
+# locked" error.
+#
+# SQLITE_LOCKED==6
+#
+do_test 1.4 {
+  set nCnt 3
+  db eval { SELECT * FROM rt WHERE minX>0 AND maxX<12 } {
+    incr nCnt -1
+    if {$nCnt==0} {
+      set rc [catch {db eval {
+        INSERT INTO rt VALUES(NULL, 51, 51);
+      }} msg]
+      set errorcode [db errorcode]
+      break
+    }
+  }
+
+  list $errorcode $rc $msg
+} {6 1 {database table is locked}}
+
+# EVIDENCE-OF: R-19740-29710 So, for example, suppose an application
+# runs one query against an R-Tree like this: SELECT id FROM demo_index
+# WHERE maxY>=35.0 AND minY<=35.0; Then for each "id" value
+# returned, suppose the application creates an UPDATE statement like the
+# following and binds the "id" value returned against the "?1"
+# parameter: UPDATE demo_index SET maxY=maxY+0.5 WHERE id=?1;
+#
+# EVIDENCE-OF: R-52919-32711 Then the UPDATE might fail with an
+# SQLITE_LOCKED error.
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE demo_index USING rtree(
+      id,              -- Integer primary key
+      minX, maxX,      -- Minimum and maximum X coordinate
+      minY, maxY       -- Minimum and maximum Y coordinate
+  );
+  INSERT INTO demo_index VALUES
+    (28215, -80.781227, -80.604706, 35.208813, 35.297367),
+    (28216, -80.957283, -80.840599, 35.235920, 35.367825),
+    (28217, -80.960869, -80.869431, 35.133682, 35.208233),
+    (28226, -80.878983, -80.778275, 35.060287, 35.154446);
+}
+do_test 2.1 {
+  db eval { SELECT id FROM demo_index WHERE maxY>=35.0  AND minY<=35.0 } {
+    set rc [catch { 
+      db eval { UPDATE demo_index SET maxY=maxY+0.5 WHERE id=$id } 
+    } msg]
+    set errorcode [db errorcode]
+    break
+  }
+  list $errorcode $rc $msg
+} {6 1 {database table is locked}}
+
+# EVIDENCE-OF: R-32604-49843 Ordinary tables in SQLite are able to read
+# and write at the same time.
+#
+do_execsql_test 3.0 {
+  CREATE TABLE x1(a INTEGER PRIMARY KEY, b, c);
+  INSERT INTO x1 VALUES(1, 1, 1);
+  INSERT INTO x1 VALUES(2, 2, 2);
+  INSERT INTO x1 VALUES(3, 3, 3);
+  INSERT INTO x1 VALUES(4, 4, 4);
+}
+do_test 3.1 {
+  unset -nocomplain res
+  set res [list]
+  db eval { SELECT * FROM x1 } {
+    lappend res $a $b $c
+    switch -- $a {
+      1 {
+        db eval { INSERT INTO x1 VALUES(5, 5, 5) }
+      }
+      2 {
+        db eval { UPDATE x1 SET c=20 WHERE a=2 }
+      }
+      3 {
+        db eval { DELETE FROM x1 WHERE c IN (3,4) }
+      }
+    }
+  }
+  set res
+} {1 1 1 2 2 2 3 3 3 5 5 5}
+do_execsql_test 3.2 {
+  SELECT * FROM x1
+} {1 1 1  2 2 20  5 5 5}
+
+# EVIDENCE-OF: R-06177-00576 And R-Tree can appear to read and write at
+# the same time in some circumstances, if it can figure out how to
+# reliably run the query to completion before starting the update.
+#
+# In 8.2, it can, it 8.1, it cannot.
+do_test 8.1 {
+  db eval { SELECT * FROM rt } {
+    set rc [catch { db eval { INSERT INTO rt VALUES(53,53,53) } } msg]
+    break;
+  }
+  list $rc $msg
+} {1 {database table is locked}}
+do_test 8.2 {
+  db eval { SELECT * FROM rt ORDER BY +id } {
+    set rc [catch { db eval { INSERT INTO rt VALUES(53,53,53) } } msg]
+    break
+  }
+  list $rc $msg
+} {0 {}}
+
+#-------------------------------------------------------------------------
+#-------------------------------------------------------------------------
+# Section 4 of documentation.
+#-------------------------------------------------------------------------
+#-------------------------------------------------------------------------
+set testprefix rtreedoc-8
+reset_db
+
+# EVIDENCE-OF: R-21062-30088 For the example above, one might create an
+# auxiliary table as follows: CREATE TABLE demo_data( id INTEGER PRIMARY
+# KEY, -- primary key objname TEXT, -- name of the object objtype TEXT,
+# -- object type boundary BLOB -- detailed boundary of object );
+#
+# One might.
+#
+do_execsql_test 1.0 {
+  CREATE TABLE demo_data(
+      id INTEGER PRIMARY KEY,  -- primary key
+      objname TEXT,            -- name of the object
+      objtype TEXT,            -- object type
+      boundary BLOB            -- detailed boundary of object
+  );
+}
+
+do_execsql_test 1.1 {
+  CREATE VIRTUAL TABLE demo_index USING rtree(
+      id,              -- Integer primary key
+      minX, maxX,      -- Minimum and maximum X coordinate
+      minY, maxY       -- Minimum and maximum Y coordinate
+  );
+
+  INSERT INTO demo_index VALUES
+    (28215, -80.781227, -80.604706, 35.208813, 35.297367),
+    (28216, -80.957283, -80.840599, 35.235920, 35.367825),
+    (28217, -80.960869, -80.869431, 35.133682, 35.208233),
+    (28226, -80.878983, -80.778275, 35.060287, 35.154446),
+    (28227, -80.745544, -80.555382, 35.130215, 35.236916),
+    (28244, -80.844208, -80.841988, 35.223728, 35.225471),
+    (28262, -80.809074, -80.682938, 35.276207, 35.377747),
+    (28269, -80.851471, -80.735718, 35.272560, 35.407925),
+    (28270, -80.794983, -80.728966, 35.059872, 35.161823),
+    (28273, -80.994766, -80.875259, 35.074734, 35.172836),
+    (28277, -80.876793, -80.767586, 35.001709, 35.101063),
+    (28278, -81.058029, -80.956375, 35.044701, 35.223812),
+    (28280, -80.844208, -80.841972, 35.225468, 35.227203),
+    (28282, -80.846382, -80.844193, 35.223972, 35.225655);
+
+  INSERT INTO demo_index 
+    SELECT NULL, minX, maxX, minY+0.2, maxY+0.2 FROM demo_index;
+  INSERT INTO demo_index 
+    SELECT NULL, minX+0.2, maxX+0.2, minY, maxY FROM demo_index;
+  INSERT INTO demo_index 
+    SELECT NULL, minX, maxX, minY+0.4, maxY+0.4 FROM demo_index;
+  INSERT INTO demo_index 
+    SELECT NULL, minX+0.4, maxX+0.4, minY, maxY FROM demo_index;
+  INSERT INTO demo_index 
+    SELECT NULL, minX, maxX, minY+0.8, maxY+0.8 FROM demo_index;
+  INSERT INTO demo_index 
+    SELECT NULL, minX+0.8, maxX+0.8, minY, maxY FROM demo_index;
+
+  INSERT INTO demo_data(id) SELECT id FROM demo_index;
+
+  SELECT count(*) FROM demo_index;
+} {896}
+
+set ::contained_in 0
+proc contained_in {args} {incr ::contained_in ; return 0}
+db func contained_in contained_in
+
+# EVIDENCE-OF: R-32671-43888 Then an efficient way to find the specific
+# ZIP code for the main SQLite office would be to run a query like this:
+# SELECT objname FROM demo_data, demo_index WHERE
+# demo_data.id=demo_index.id AND contained_in(demo_data.boundary,
+# 35.37785, -80.77470) AND minX<=-80.77470 AND maxX>=-80.77470 AND
+# minY<=35.37785 AND maxY>=35.37785;
+do_vmstep_test 1.2 {
+  SELECT objname FROM demo_data, demo_index
+    WHERE demo_data.id=demo_index.id
+    AND contained_in(demo_data.boundary, 35.37785, -80.77470)
+    AND minX<=-80.77470 AND maxX>=-80.77470
+    AND minY<=35.37785  AND maxY>=35.37785;
+} {$step<100}
+set ::contained_in1 $::contained_in
+
+# EVIDENCE-OF: R-32761-23915 One would get the same answer without the
+# use of the R*Tree index using the following simpler query: SELECT
+# objname FROM demo_data WHERE contained_in(demo_data.boundary,
+# 35.37785, -80.77470);
+set ::contained_in 0
+do_vmstep_test 1.3 {
+  SELECT objname FROM demo_data
+    WHERE contained_in(demo_data.boundary, 35.37785, -80.77470);
+} {$step>3200}
+
+# EVIDENCE-OF: R-40261-32799 The problem with this latter query is that
+# it must apply the contained_in() function to all entries in the
+# demo_data table.
+#
+# 896 of them, IIRC.
+do_test 1.4 {
+  set ::contained_in
+} 896
+
+# EVIDENCE-OF: R-24212-52761 The use of the R*Tree in the penultimate
+# query reduces the number of calls to contained_in() function to a
+# small subset of the entire table.
+#
+# 2 is a small subset of 896.
+#
+# EVIDENCE-OF: R-39057-63901 The R*Tree index did not find the exact
+# answer itself, it merely limited the search space.
+#
+# contained_in() filtered out those 2 rows.
+do_test 1.5 {
+  set ::contained_in1
+} {2}
+
+
+#-------------------------------------------------------------------------
+#-------------------------------------------------------------------------
+# Section 4.1 of documentation.
+#-------------------------------------------------------------------------
+#-------------------------------------------------------------------------
+set testprefix rtreedoc-9
+reset_db
+
+# EVIDENCE-OF: R-46566-43213 Beginning with SQLite version 3.24.0
+# (2018-06-04), r-tree tables can have auxiliary columns that store
+# arbitrary data. Auxiliary columns can be used in place of secondary
+# tables such as "demo_data".
+#
+# EVIDENCE-OF: R-41287-48160 Auxiliary columns are marked with a "+"
+# symbol before the column name.
+#
+# This interface cannot conveniently be used to prove anything about 
+# versions of SQLite prior to 3.24.0.
+#
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE rta USING rtree(
+    id, u1,u2,  v1,v2,   +aux
+  );
+
+  INSERT INTO rta(aux) VALUES(NULL);
+  INSERT INTO rta(aux) VALUES(45);
+  INSERT INTO rta(aux) VALUES(22.3);
+  INSERT INTO rta(aux) VALUES('hello');
+  INSERT INTO rta(aux) VALUES(X'ABCD');
+
+  SELECT typeof(aux), quote(aux) FROM rta;
+} {
+  null NULL
+  integer 45
+  real 22.3
+  text 'hello'
+  blob X'ABCD'
+}
+
+# EVIDENCE-OF: R-30514-26093 Auxiliary columns must come after all of
+# the coordinate boundary columns.
+foreach {tn cols} {
+  1 "id x1,x2, +extra,  y1,y2"
+  2 "extra, +id x1,x2, y1,y2"
+  3 "id, x1,+x2, extra, y1,y2"
+} {
+  do_catchsql_test 2.$tn "
+    CREATE VIRTUAL TABLE rrr USING rtree($cols)
+  " {1 {Auxiliary rtree columns must be last}}
+}
+do_catchsql_test 3.0 {
+  CREATE VIRTUAL TABLE rrr USING rtree(+id, extra, x1, x2);
+} {1 {near "+": syntax error}}
+
+# EVIDENCE-OF: R-01280-03635 An RTREE table can have no more than 100
+# columns total. In other words, the count of columns including the
+# integer primary key column, the coordinate boundary columns, and all
+# auxiliary columns must be 100 or less.
+do_catchsql_test 3.1 {
+  CREATE VIRTUAL TABLE r1 USING rtree(intid, u1,u2,
+    +c00, +c01, +c02, +c03, +c04, +c05, +c06, +c07, +c08, +c09,
+    +c10, +c11, +c12, +c13, +c14, +c15, +c16, +c17, +c18, +c19,
+    +c20, +c21, +c22, +c23, +c24, +c25, +c26, +c27, +c28, +c29,
+    +c30, +c31, +c32, +c33, +c34, +c35, +c36, +c37, +c38, +c39,
+    +c40, +c41, +c42, +c43, +c44, +c45, +c46, +c47, +c48, +c49,
+    +c50, +c51, +c52, +c53, +c54, +c55, +c56, +c57, +c58, +c59,
+    +c60, +c61, +c62, +c63, +c64, +c65, +c66, +c67, +c68, +c69,
+    +c70, +c71, +c72, +c73, +c74, +c75, +c76, +c77, +c78, +c79,
+    +c80, +c81, +c82, +c83, +c84, +c85, +c86, +c87, +c88, +c89,
+    +c90, +c91, +c92, +c93, +c94, +c95, +c96
+  );
+} {0 {}}
+do_catchsql_test 3.2 {
+  DROP TABLE r1;
+  CREATE VIRTUAL TABLE r1 USING rtree(intid, u1,u2,
+    +c00, +c01, +c02, +c03, +c04, +c05, +c06, +c07, +c08, +c09,
+    +c10, +c11, +c12, +c13, +c14, +c15, +c16, +c17, +c18, +c19,
+    +c20, +c21, +c22, +c23, +c24, +c25, +c26, +c27, +c28, +c29,
+    +c30, +c31, +c32, +c33, +c34, +c35, +c36, +c37, +c38, +c39,
+    +c40, +c41, +c42, +c43, +c44, +c45, +c46, +c47, +c48, +c49,
+    +c50, +c51, +c52, +c53, +c54, +c55, +c56, +c57, +c58, +c59,
+    +c60, +c61, +c62, +c63, +c64, +c65, +c66, +c67, +c68, +c69,
+    +c70, +c71, +c72, +c73, +c74, +c75, +c76, +c77, +c78, +c79,
+    +c80, +c81, +c82, +c83, +c84, +c85, +c86, +c87, +c88, +c89,
+    +c90, +c91, +c92, +c93, +c94, +c95, +c96, +c97
+  );
+} {1 {Too many columns for an rtree table}}
+do_catchsql_test 3.3 {
+  CREATE VIRTUAL TABLE r1 USING rtree(intid, u1,u2, v1,v2,
+    +c00, +c01, +c02, +c03, +c04, +c05, +c06, +c07, +c08, +c09,
+    +c10, +c11, +c12, +c13, +c14, +c15, +c16, +c17, +c18, +c19,
+    +c20, +c21, +c22, +c23, +c24, +c25, +c26, +c27, +c28, +c29,
+    +c30, +c31, +c32, +c33, +c34, +c35, +c36, +c37, +c38, +c39,
+    +c40, +c41, +c42, +c43, +c44, +c45, +c46, +c47, +c48, +c49,
+    +c50, +c51, +c52, +c53, +c54, +c55, +c56, +c57, +c58, +c59,
+    +c60, +c61, +c62, +c63, +c64, +c65, +c66, +c67, +c68, +c69,
+    +c70, +c71, +c72, +c73, +c74, +c75, +c76, +c77, +c78, +c79,
+    +c80, +c81, +c82, +c83, +c84, +c85, +c86, +c87, +c88, +c89,
+    +c90, +c91, +c92, +c93, +c94,
+  );
+} {0 {}}
+do_catchsql_test 3.4 {
+  DROP TABLE r1;
+  CREATE VIRTUAL TABLE r1 USING rtree(intid, u1,u2, v1,v2,
+    +c00, +c01, +c02, +c03, +c04, +c05, +c06, +c07, +c08, +c09,
+    +c10, +c11, +c12, +c13, +c14, +c15, +c16, +c17, +c18, +c19,
+    +c20, +c21, +c22, +c23, +c24, +c25, +c26, +c27, +c28, +c29,
+    +c30, +c31, +c32, +c33, +c34, +c35, +c36, +c37, +c38, +c39,
+    +c40, +c41, +c42, +c43, +c44, +c45, +c46, +c47, +c48, +c49,
+    +c50, +c51, +c52, +c53, +c54, +c55, +c56, +c57, +c58, +c59,
+    +c60, +c61, +c62, +c63, +c64, +c65, +c66, +c67, +c68, +c69,
+    +c70, +c71, +c72, +c73, +c74, +c75, +c76, +c77, +c78, +c79,
+    +c80, +c81, +c82, +c83, +c84, +c85, +c86, +c87, +c88, +c89,
+    +c90, +c91, +c92, +c93, +c94, +c95,
+  );
+} {1 {Too many columns for an rtree table}}
+
+# EVIDENCE-OF: R-05552-15084
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE demo_index2 USING rtree(
+      id,              -- Integer primary key
+      minX, maxX,      -- Minimum and maximum X coordinate
+      minY, maxY,      -- Minimum and maximum Y coordinate
+      +objname TEXT,   -- name of the object
+      +objtype TEXT,   -- object type
+      +boundary BLOB   -- detailed boundary of object
+  );
+}
+do_execsql_test 4.1 {
+  CREATE VIRTUAL TABLE demo_index USING rtree(
+      id,              -- Integer primary key
+      minX, maxX,      -- Minimum and maximum X coordinate
+      minY, maxY       -- Minimum and maximum Y coordinate
+  );
+  CREATE TABLE demo_data(
+      id INTEGER PRIMARY KEY,  -- primary key
+      objname TEXT,            -- name of the object
+      objtype TEXT,            -- object type
+      boundary BLOB            -- detailed boundary of object
+  );
+
+  INSERT INTO demo_index2(id) VALUES(1);
+  INSERT INTO demo_index(id) VALUES(1);
+  INSERT INTO demo_data(id) VALUES(1);
+}
+do_test 4.2 {
+  catch { array unset R }
+  db eval {SELECT * FROM demo_index2} R { set r1 [array names R] }
+  catch { array unset R }
+  db eval {SELECT * FROM demo_index NATURAL JOIN demo_data } R { 
+    set r2 [array names R] 
+  }
+  expr {$r1==$r2}
+} {1}
+
+# EVIDENCE-OF: R-26099-32169 SELECT objname FROM demo_index2 WHERE
+# contained_in(boundary, 35.37785, -80.77470) AND minX<=-80.77470 AND
+# maxX>=-80.77470 AND minY<=35.37785 AND maxY>=35.37785;
+do_execsql_test 4.3.1 {
+  DELETE FROM demo_index2;
+  INSERT INTO demo_index2(id,minX,maxX,minY,maxY) VALUES
+    (28215, -80.781227, -80.604706, 35.208813, 35.297367),
+    (28216, -80.957283, -80.840599, 35.235920, 35.367825),
+    (28217, -80.960869, -80.869431, 35.133682, 35.208233),
+    (28226, -80.878983, -80.778275, 35.060287, 35.154446),
+    (28227, -80.745544, -80.555382, 35.130215, 35.236916),
+    (28244, -80.844208, -80.841988, 35.223728, 35.225471),
+    (28262, -80.809074, -80.682938, 35.276207, 35.377747),
+    (28269, -80.851471, -80.735718, 35.272560, 35.407925),
+    (28270, -80.794983, -80.728966, 35.059872, 35.161823),
+    (28273, -80.994766, -80.875259, 35.074734, 35.172836),
+    (28277, -80.876793, -80.767586, 35.001709, 35.101063),
+    (28278, -81.058029, -80.956375, 35.044701, 35.223812),
+    (28280, -80.844208, -80.841972, 35.225468, 35.227203),
+    (28282, -80.846382, -80.844193, 35.223972, 35.225655);
+}
+set ::contained_in 0
+proc contained_in {args} {
+  incr ::contained_in
+  return 0
+}
+db func contained_in contained_in
+do_execsql_test 4.3.2 {
+  SELECT objname FROM demo_index2
+    WHERE contained_in(boundary, 35.37785, -80.77470)
+    AND minX<=-80.77470 AND maxX>=-80.77470
+    AND minY<=35.37785  AND maxY>=35.37785;
+}
+do_test 4.3.3 {
+  # Function invoked only once because r-tree filtering happened first.
+  set ::contained_in
+} 1
+set ::contained_in 0
+do_execsql_test 4.3.4 {
+  SELECT objname FROM demo_index2
+    WHERE contained_in(boundary, 35.37785, -80.77470)
+}
+do_test 4.3.3 {
+  # Function invoked 14 times because no r-tree filtering. Inefficient.
+  set ::contained_in
+} 14
+
+#-------------------------------------------------------------------------
+#-------------------------------------------------------------------------
+# Section 4.1.1 of documentation.
+#-------------------------------------------------------------------------
+#-------------------------------------------------------------------------
+set testprefix rtreedoc-9
+reset_db
+
+# EVIDENCE-OF: R-24021-02490 For auxiliary columns, only the name of the
+# column matters. The type affinity is ignored.
+#
+# EVIDENCE-OF: R-39906-44154 Constraints such as NOT NULL, UNIQUE,
+# REFERENCES, or CHECK are also ignored.
+do_execsql_test 1.0 { PRAGMA foreign_keys = on }
+foreach {tn auxcol nm} {
+  1 "+extra INTEGER" extra
+  2 "+extra TEXT"    extra
+  3 "+extra BLOB"    extra
+  4 "+extra REAL"    extra
+
+  5 "+col NOT NULL"                 col
+  6 "+col CHECK (col IS NOT NULL)"  col
+  7 "+col REFERENCES tbl(x)"        col
+} {
+  do_execsql_test 1.$tn.1 "
+    CREATE VIRTUAL TABLE rt USING rtree_i32(k, a,b, $auxcol)
+  "
+
+  # Check that the aux column has no affinity. Or NOT NULL constraint.
+  # And that the aux column is the child key of an FK constraint.
+  #
+  do_execsql_test 1.$tn.2 "
+    INSERT INTO rt($nm) VALUES(NULL), (45), (-123.2), ('456'), (X'ABCD');
+    SELECT typeof($nm), quote($nm) FROM rt;
+  " {
+    null NULL
+    integer 45
+    real -123.2
+    text '456'
+    blob X'ABCD'
+  }
+
+  # Check that there is no UNIQUE constraint either.
+  #
+  do_execsql_test 1.$tn.3 "
+    INSERT INTO rt($nm) VALUES('xyz'), ('xyz'), ('xyz');
+  "
+
+  do_execsql_test 1.$tn.2 {
+    DROP TABLE rt
+  }
+}
+
+#-------------------------------------------------------------------------
+#-------------------------------------------------------------------------
+# Section 5 of documentation.
+#-------------------------------------------------------------------------
+#-------------------------------------------------------------------------
+set testprefix rtreedoc-10
+
+# EVIDENCE-OF: R-21011-43790 If integer coordinates are desired, declare
+# the table using "rtree_i32" instead: CREATE VIRTUAL TABLE intrtree
+# USING rtree_i32(id,x0,x1,y0,y1,z0,z1);
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE intrtree USING rtree_i32(id,x0,x1,y0,y1,z0,z1);
+  INSERT INTO intrtree DEFAULT VALUES;
+  SELECT typeof(x0) FROM intrtree;
+} {integer}
+
+# EVIDENCE-OF: R-09193-49806 An rtree_i32 stores coordinates as 32-bit
+# signed integers.
+#
+# Show that coordinates are cast in a way consistent with casting to
+# a signed 32-bit integer.
+do_execsql_test 1.1 {
+  DELETE FROM intrtree;
+  INSERT INTO intrtree VALUES(333,
+      1<<44, (1<<44)+1,
+      10000000000, 10000000001,
+      -10000000001, -10000000000
+  );
+  SELECT * FROM intrtree;
+} {
+  333 0 1 1410065408 1410065409 -1410065409 -1410065408
+}
+
+#-------------------------------------------------------------------------
+#-------------------------------------------------------------------------
+# Section 7.1 of documentation.
+#-------------------------------------------------------------------------
+#-------------------------------------------------------------------------
+set testprefix rtreedoc-11
+reset_db
+
+# This command assumes that the argument is a node blob for a 2 dimensional
+# i32 r-tree table. It decodes and returns a list of cells from the node
+# as a list. Each cell is itself a list of the following form:
+#
+#    {$rowid $minX $maxX $minY $maxY}
+#
+# For internal (non-leaf) nodes, the rowid is replaced by the child node
+# number.
+#
+proc rnode {aData} {
+  set nDim 2
+
+  set nData [string length $aData]
+  set nBytePerCell [expr (8 + 2*$nDim*4)]
+  binary scan [string range $aData 2 3] S nCell
+
+  set res [list]
+  for {set i 0} {$i < $nCell} {incr i} {
+    set iOff [expr $i*$nBytePerCell+4]
+    set cell [string range $aData $iOff [expr $iOff+$nBytePerCell-1]]
+    binary scan $cell WIIII rowid x1 x2 y1 y2
+    lappend res [list $rowid $x1 $x2 $y1 $y2]
+  }
+
+  return $res
+}
+
+# aData must be a node blob. This command returns true if the node contains
+# rowid $rowid, or false otherwise.
+#
+proc rnode_contains {aData rowid} {
+  set L [rnode $aData]
+  foreach cell $L {
+    set r [lindex $cell 0]
+    if {$r==$rowid} { return 1 }
+  }
+  return 0
+}
+
+proc rnode_replace_cell {aData iCell cell} {
+  set aCell [binary format WIIII {*}$cell]
+  set nDim 2
+  set nBytePerCell [expr (8 + 2*$nDim*4)]
+  set iOff [expr $iCell*$nBytePerCell+4]
+
+  set aNew [binary format a*a*a* \
+      [string range $aData 0 $iOff-1]     \
+      $aCell     \
+      [string range $aData $iOff+$nBytePerCell end] \
+  ]
+  return $aNew
+}
+
+db function rnode rnode
+db function rnode_contains rnode_contains
+db function rnode_replace_cell rnode_replace_cell
+
+foreach {tn nm} {
+  1 x1
+  2 asdfghjkl
+  3 hello_world
+} {
+  do_execsql_test 1.$tn.1 "
+    CREATE VIRTUAL TABLE $nm USING rtree(a,b,c,d,e);
+  "
+
+  # EVIDENCE-OF: R-33789-46762 The content of an R*Tree index is actually
+  # stored in three ordinary SQLite tables with names derived from the
+  # name of the R*Tree.
+  #
+  # EVIDENCE-OF: R-39849-06566 This is their schema: CREATE TABLE
+  # %_node(nodeno INTEGER PRIMARY KEY, data) CREATE TABLE %_parent(nodeno
+  # INTEGER PRIMARY KEY, parentnode) CREATE TABLE %_rowid(rowid INTEGER
+  # PRIMARY KEY, nodeno)
+  #
+  # EVIDENCE-OF: R-07489-10051 The "%" in the name of each shadow table is
+  # replaced by the name of the R*Tree virtual table. So, if the name of
+  # the R*Tree table is "xyz" then the three shadow tables would be
+  # "xyz_node", "xyz_parent", and "xyz_rowid".
+  do_execsql_test 1.$tn.2 {
+    SELECT sql FROM sqlite_schema WHERE name!=$nm ORDER BY 1
+  } [string map [list % $nm] "
+    {CREATE TABLE \"%_node\"(nodeno INTEGER PRIMARY KEY,data)}
+    {CREATE TABLE \"%_parent\"(nodeno INTEGER PRIMARY KEY,parentnode)}
+    {CREATE TABLE \"%_rowid\"(rowid INTEGER PRIMARY KEY,nodeno)}
+  "]
+
+  do_execsql_test 1.$tn "DROP TABLE $nm"
+}
+
+
+# EVIDENCE-OF: R-51070-59303 There is one entry in the %_node table for
+# each R*Tree node.
+#
+# The following creates a 6 node r-tree structure.
+#
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE r1 USING rtree_i32(i, x1,x2, y1,y2);
+  WITH t(i) AS (
+    VALUES(1) UNION SELECT i+1 FROM t WHERE i<110
+  )
+  INSERT INTO r1 SELECT i, (i%10), (i%10)+2, (i%6), (i%7)+6 FROM t;
+}
+do_execsql_test 2.1 {
+  SELECT count(*) FROM r1_node;
+} 6
+
+# EVIDENCE-OF: R-27261-09153 All nodes other than the root have an entry
+# in the %_parent shadow table that identifies the parent node.
+#
+# In this case nodes 2-6 are the children of node 1.
+#
+do_execsql_test 2.3 {
+  SELECT nodeno, parentnode FROM r1_parent
+} {2 1  3 1  4 1  5 1  6 1}
+
+# EVIDENCE-OF: R-02358-35037 The %_rowid shadow table maps entry rowids
+# to the node that contains that entry.
+#
+do_execsql_test 2.4 {
+  SELECT 'failed' FROM r1_rowid WHERE 0==rnode_contains(
+    (SELECT data FROM r1_node WHERE nodeno=r1_rowid.nodeno), rowid
+  )
+}
+do_test 2.5 {
+  db eval { SELECT nodeno, data FROM r1_node WHERE nodeno!=1 } {
+    set L [rnode $data]
+    foreach cell $L {
+      set rowid [lindex $cell 0]
+      set rowid_nodeno 0
+      db eval {SELECT nodeno AS rowid_nodeno FROM r1_rowid WHERE rowid=$rowid} {
+        break
+      }
+      if {$rowid_nodeno!=$nodeno} { error "data mismatch!" }
+    }
+  }
+} {}
+
+# EVIDENCE-OF: R-65201-22208 Extra columns appended to the %_rowid table
+# hold the content of auxiliary columns.
+#
+# EVIDENCE-OF: R-44161-28345 The names of these extra %_rowid columns
+# are probably not the same as the actual auxiliary column names.
+#
+# In this case, the auxiliary columns are named "e1" and "e2". The
+# extra %_rowid columns are named "a0" and "a1".
+#
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE rtaux USING rtree(id, x1,x2, y1,y2, +e1, +e2);
+  SELECT sql FROM sqlite_schema WHERE name='rtaux_rowid';
+} {
+  {CREATE TABLE "rtaux_rowid"(rowid INTEGER PRIMARY KEY,nodeno,a0,a1)}
+}
+do_execsql_test 3.1 {
+  INSERT INTO rtaux(e1, e2) VALUES('hello', 'world'), (123, 456);
+}
+do_execsql_test 3.2 {
+  SELECT a0, a1 FROM rtaux_rowid;
+} {
+  hello world  123 456
+}
+
+#-------------------------------------------------------------------------
+#-------------------------------------------------------------------------
+# Section 7.2 of documentation.
+#-------------------------------------------------------------------------
+#-------------------------------------------------------------------------
+set testprefix rtreedoc-12
+reset_db
+forcedelete test.db2
+
+db function rnode rnode
+db function rnode_contains rnode_contains
+db function rnode_replace_cell rnode_replace_cell
+
+# EVIDENCE-OF: R-13571-45795 The scalar SQL function rtreecheck(R) or
+# rtreecheck(S,R) runs an integrity check on the rtree table named R
+# contained within database S.
+#
+# EVIDENCE-OF: R-36011-59963 The function returns a human-language
+# description of any problems found, or the string 'ok' if everything is
+# ok.
+#
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE rt1 USING rtree(id, a, b);
+  WITH s(i) AS (
+    VALUES(1) UNION ALL SELECT i+1 FROM s WHERE i<200
+  )
+  INSERT INTO rt1 SELECT i, i, i FROM s;
+
+  ATTACH 'test.db2' AS 'aux';
+  CREATE VIRTUAL TABLE aux.rt1 USING rtree(id, a, b);
+  INSERT INTO aux.rt1 SELECT * FROM rt1;
+}
+
+do_execsql_test 1.1.1 { SELECT rtreecheck('rt1'); } {ok}
+do_execsql_test 1.1.2 { SELECT rtreecheck('main', 'rt1'); } {ok}
+do_execsql_test 1.1.3 { SELECT rtreecheck('aux', 'rt1'); } {ok}
+do_catchsql_test 1.1.4 { 
+  SELECT rtreecheck('nosuchdb', 'rt1'); 
+} {1 {SQL logic error}}
+
+# Corrupt the table in database 'main':
+do_execsql_test 1.2.1 { UPDATE rt1_node SET nodeno=21 WHERE nodeno=3; }
+do_execsql_test 1.2.1 { SELECT rtreecheck('rt1')=='ok'; } {0}
+do_execsql_test 1.2.2 { SELECT rtreecheck('main', 'rt1')=='ok'; } {0}
+do_execsql_test 1.2.3 { SELECT rtreecheck('aux', 'rt1')=='ok'; } {1}
+do_execsql_test 1.2.4 { UPDATE rt1_node SET nodeno=3 WHERE nodeno=21; }
+
+# Corrupt the table in database 'aux':
+do_execsql_test 1.2.1 { UPDATE aux.rt1_node SET nodeno=21 WHERE nodeno=3; }
+do_execsql_test 1.2.1 { SELECT rtreecheck('rt1')=='ok'; } {1}
+do_execsql_test 1.2.2 { SELECT rtreecheck('main', 'rt1')=='ok'; } {1}
+do_execsql_test 1.2.3 { SELECT rtreecheck('aux', 'rt1')=='ok'; } {0}
+do_execsql_test 1.2.4 { UPDATE rt1_node SET nodeno=3 WHERE nodeno=21; }
+
+# EVIDENCE-OF: R-45759-33459 Example: To verify that an R*Tree named
+# "demo_index" is well-formed and internally consistent, run: SELECT
+# rtreecheck('demo_index');
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE demo_index USING rtree(id, x1,x2, y1,y2);
+  INSERT INTO demo_index SELECT id, a, b, a, b FROM rt1;
+}
+do_execsql_test 2.1 { SELECT rtreecheck('demo_index') } {ok}
+do_execsql_test 2.2 {
+  UPDATE demo_index_rowid SET nodeno=44 WHERE rowid=44;
+  SELECT rtreecheck('demo_index');
+} {{Found (44 -> 44) in %_rowid table, expected (44 -> 4)}}
+
+
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE rt2 USING rtree_i32(id, a, b, c, d);
+  WITH s(i) AS (
+    VALUES(1) UNION ALL SELECT i+1 FROM s WHERE i<200
+  )
+  INSERT INTO rt2 SELECT i, i, i+2, i, i+2 FROM s;
+}
+
+# EVIDENCE-OF: R-02555-31045 for each dimension, (coord1 <= coord2).
+#
+execsql BEGIN
+do_test 3.1 {
+  set cell [
+    lindex [execsql {SELECT rnode(data) FROM rt2_node WHERE nodeno=3}] 0 3
+  ]
+  set cell [list [lindex $cell 0]       \
+    [lindex $cell 2] [lindex $cell 1]   \
+    [lindex $cell 3] [lindex $cell 4]   \
+  ]
+  execsql { 
+    UPDATE rt2_node SET data=rnode_replace_cell(data, 3, $cell) WHERE nodeno=3 
+  }
+  execsql { SELECT rtreecheck('rt2') }
+} {{Dimension 0 of cell 3 on node 3 is corrupt}}
+execsql ROLLBACK
+
+# EVIDENCE-OF: R-13844-15873 unless the cell is on the root node, that
+# the cell is bounded by the parent cell on the parent node.
+#
+execsql BEGIN
+do_test 3.2 {
+  set cell [
+    lindex [execsql {SELECT rnode(data) FROM rt2_node WHERE nodeno=3}] 0 3
+  ]
+  lset cell 3 450
+  lset cell 4 451
+  execsql { 
+    UPDATE rt2_node SET data=rnode_replace_cell(data, 3, $cell) WHERE nodeno=3 
+  }
+  execsql { SELECT rtreecheck('rt2') }
+} {{Dimension 1 of cell 3 on node 3 is corrupt relative to parent}}
+execsql ROLLBACK
+
+# EVIDENCE-OF: R-02505-03621 for leaf nodes, that there is an entry in
+# the %_rowid table corresponding to the cell's rowid value that points
+# to the correct node.
+#
+execsql BEGIN
+do_test 3.3 {
+  execsql { 
+    UPDATE rt2_rowid SET rowid=452 WHERE rowid=100
+  }
+  execsql { SELECT rtreecheck('rt2') }
+} {{Mapping (100 -> 6) missing from %_rowid table}}
+execsql ROLLBACK
+
+# EVIDENCE-OF: R-50927-02218 for cells on non-leaf nodes, that there is
+# an entry in the %_parent table mapping from the cell's child node to
+# the node that it resides on.
+#
+execsql BEGIN
+do_test 3.4.1 {
+  execsql { 
+    UPDATE rt2_parent SET parentnode=123 WHERE nodeno=3
+  }
+  execsql { SELECT rtreecheck('rt2') }
+} {{Found (3 -> 123) in %_parent table, expected (3 -> 1)}}
+execsql ROLLBACK
+execsql BEGIN
+do_test 3.4.2 {
+  execsql { 
+    UPDATE rt2_parent SET nodeno=123 WHERE nodeno=3
+  }
+  execsql { SELECT rtreecheck('rt2') }
+} {{Mapping (3 -> 1) missing from %_parent table}}
+execsql ROLLBACK
+
+# EVIDENCE-OF: R-23235-09153 That there are the same number of entries
+# in the %_rowid table as there are leaf cells in the r-tree structure,
+# and that there is a leaf cell that corresponds to each entry in the
+# %_rowid table.
+execsql BEGIN
+do_test 3.5 {
+  execsql { INSERT INTO rt2_rowid VALUES(1000, 1000) }
+  execsql { SELECT rtreecheck('rt2') }
+} {{Wrong number of entries in %_rowid table - expected 200, actual 201}}
+execsql ROLLBACK
+
+# EVIDENCE-OF: R-62800-43436 That there are the same number of entries
+# in the %_parent table as there are non-leaf cells in the r-tree
+# structure, and that there is a non-leaf cell that corresponds to each
+# entry in the %_parent table.
+execsql BEGIN
+do_test 3.6 {
+  execsql { INSERT INTO rt2_parent VALUES(1000, 1000) }
+  execsql { SELECT rtreecheck('rt2') }
+} {{Wrong number of entries in %_parent table - expected 10, actual 11}}
+execsql ROLLBACK
+
+
+
+finish_test
diff --git a/ext/rtree/rtreedoc2.test b/ext/rtree/rtreedoc2.test
new file mode 100644
index 0000000000000000000000000000000000000000..ca0c6b31bd3018866712a826ca0d1101156c16a0
--- /dev/null
+++ b/ext/rtree/rtreedoc2.test
@@ -0,0 +1,346 @@
+# 2021 September 13
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# The focus of this file is testing the r-tree extension.
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+}
+source [file join [file dirname [info script]] rtree_util.tcl]
+source $testdir/tester.tcl
+set testprefix rtreedoc2
+
+ifcapable !rtree {
+  finish_test
+  return
+}
+
+#-------------------------------------------------------------------------
+#-------------------------------------------------------------------------
+# Section 6 of documentation.
+#-------------------------------------------------------------------------
+#-------------------------------------------------------------------------
+set testprefix rtreedoc2-1
+
+# EVIDENCE-OF: R-35254-48865 A call to one of the above APIs creates a
+# new SQL function named by the second parameter (zQueryFunc or zGeom).
+#
+# [register_circle_geom db] registers new geometry callback "Qcircle"
+# and legacy implementation "circle". Test that these do actually appear.
+#
+do_execsql_test 1.1.0 {
+  SELECT * FROM pragma_function_list WHERE name IN('circle', 'qcircle');
+} {
+}
+do_test 1.1 {
+  register_circle_geom db
+} {SQLITE_OK}
+do_execsql_test 1.1.2 {
+  SELECT * FROM pragma_function_list WHERE name = 'circle' AND enc='utf8';
+} {
+  circle 0 s utf8 -1 0
+}
+do_execsql_test 1.1.3 {
+  SELECT * FROM pragma_function_list WHERE name = 'qcircle' AND enc='utf8';
+} {
+  qcircle 0 s utf8 -1 0
+} 
+
+do_execsql_test 1.2.0 { SELECT circle(1, 2, 3); } {{}}
+do_execsql_test 1.2.1 { SELECT qcircle(1, 2, 3); } {{}}
+
+# EVIDENCE-OF: R-61427-46983
+do_execsql_test 1.3.0 {
+  CREATE VIRTUAL TABLE demo_index USING rtree(id, x1,x2, y1,y2);
+  INSERT INTO demo_index VALUES(10, 45,45,  24,24);
+  INSERT INTO demo_index VALUES(20, 50,50,  28,28);
+  INSERT INTO demo_index VALUES(30, 43,43,  22,22);
+}
+do_execsql_test 1.3.1 {
+  SELECT id FROM demo_index WHERE id MATCH circle(45.3, 22.9, 5.0)
+} {10 30}
+
+# EVIDENCE-OF: R-16907-50223 The SQL syntax for custom queries is the
+# same regardless of which interface, sqlite3_rtree_geometry_callback()
+# or sqlite3_rtree_query_callback(), is used to register the SQL
+# function.
+do_execsql_test 1.3.2 {
+  SELECT id FROM demo_index WHERE id MATCH qcircle(45.3, 22.9, 5.0, 1)
+} {10 30}
+
+
+# EVIDENCE-OF: R-59634-51678 When that SQL function appears on the
+# right-hand side of the MATCH operator and the left-hand side of the
+# MATCH operator is any column in the R*Tree virtual table, then the
+# callback defined by the third argument (xQueryFunc or xGeom) is
+# invoked to determine if a particular object or subtree overlaps the
+# desired region.
+proc box_geom {args} {
+  lappend ::box_geom [concat [lindex $args 0] [lrange $args 2 end-1]]
+  return ""
+}
+register_box_geom db box_geom
+set box_geom [list]
+do_execsql_test 1.3.2 {
+  SELECT id FROM demo_index WHERE id MATCH box(43,46, 21,25);
+} {10 30}
+do_test 1.3.3 {
+  set ::box_geom
+} [list {*}{
+  {box {43.0 46.0 21.0 25.0} {45.0 45.0 24.0 24.0}}
+  {box {43.0 46.0 21.0 25.0} {50.0 50.0 28.0 28.0}} 
+  {box {43.0 46.0 21.0 25.0} {43.0 43.0 22.0 22.0}}
+}]
+
+#-------------------------------------------------------------------------
+#-------------------------------------------------------------------------
+# Section 6 of documentation.
+#-------------------------------------------------------------------------
+#-------------------------------------------------------------------------
+set testprefix rtreedoc2-2
+
+# EVIDENCE-OF: R-02424-24769 The second argument is the number of
+# coordinates in each r-tree entry, and is always the same for any given
+# R*Tree.
+#
+# EVIDENCE-OF: R-40260-16838 The number of coordinates is 2 for a
+# 1-dimensional R*Tree, 4 for a 2-dimensional R*Tree, 6 for a
+# 3-dimensional R*Tree, and so forth.
+#
+# The second argument refered to above is the length of the list passed
+# as the 3rd parameter to the Tcl script.
+#
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE rt1 USING rtree(id, x1,x2);
+  CREATE VIRTUAL TABLE rt2 USING rtree(id, x1,x2, y1,y2);
+  CREATE VIRTUAL TABLE rt3 USING rtree(id, x1,x2, y1,y2, z1,z2);
+
+  INSERT INTO rt1 DEFAULT VALUES;
+  INSERT INTO rt2 DEFAULT VALUES;
+  INSERT INTO rt3 DEFAULT VALUES;
+}
+foreach {tn tbl nCoord} {
+  1 rt1 2     
+  2 rt2 4
+  3 rt3 6
+} {
+  set ::box_geom [list]
+  do_catchsql_test 1.$tn.1 "
+    SELECT id FROM $tbl WHERE id MATCH box();
+  " {1 {SQL logic error}}
+
+  do_test 1.$tn.2 {
+    llength [lindex $::box_geom 0 2]
+  } $nCoord
+}
+
+# EVIDENCE-OF: R-28051-48608 If xGeom returns anything other than
+# SQLITE_OK, then the r-tree query will abort with an error.
+proc box_geom {args} {
+  error "an error!"
+}
+do_catchsql_test 2.0 {
+  SELECT * FROM rt2 WHERE id MATCH box(22,23, 24,25); 
+} {1 {SQL logic error}}
+
+do_execsql_test 3.0 {
+  INSERT INTO rt1 VALUES(10, 10, 10);
+  INSERT INTO rt1 VALUES(11, 11, 11);
+  INSERT INTO rt1 VALUES(12, 12, 12);
+  INSERT INTO rt1 VALUES(13, 13, 13);
+  INSERT INTO rt1 VALUES(14, 14, 14);
+}
+
+# EVIDENCE-OF: R-53759-57366 The exact same sqlite3_rtree_geometry
+# structure is used for every callback for same MATCH operator in the
+# same query.
+proc box_geom {args} {
+  lappend ::ptr_list [lindex $args 4]
+  return 0
+}
+set ::ptr_list [list]
+do_execsql_test 3.1 {
+  SELECT * FROM rt1 WHERE id MATCH box(1,1);
+}
+do_test 3.2 {
+  set val [lindex $::ptr_list 0]
+  foreach p $::ptr_list {
+    if {$p!=$val} {error "pointer mismatch"}
+  }
+} {}
+
+# EVIDENCE-OF: R-60247-35692 The contents of the sqlite3_rtree_geometry
+# structure are initialized by SQLite but are not subsequently modified.
+proc box_geom {args} {
+  lappend ::box_geom [concat [lindex $args 0] [lrange $args 2 end-1]]
+  if {[llength $::box_geom]==3} {
+    return "zero"
+  }
+  return ""
+}
+set ::box_geom [list]
+do_catchsql_test 3.2 {
+  SELECT * FROM rt1 WHERE id MATCH box(1,1);
+} {1 {SQL logic error}}
+do_test 3.3 {
+  set ::box_geom
+} [list {*}{
+  {box {1.0 1.0} {0.0 0.0}} 
+  {box {1.0 1.0} {10.0 10.0}} 
+  {box {1.0 1.0} {11.0 11.0}} 
+  {box 0.0 {12.0 12.0}}
+}]
+
+# EVIDENCE-OF: R-31246-29731 The pContext member of the
+# sqlite3_rtree_geometry structure is always set to a copy of the
+# pContext argument passed to sqlite3_rtree_geometry_callback() when the
+# callback is registered.
+reset_db
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE r1 USING rtree(id, minX,maxX, minY,maxY);
+  WITH s(i) AS (
+    VALUES(1) UNION ALL SELECT i+1 FROM s WHERE i<120
+  )
+  INSERT INTO r1 SELECT i,i,i+1,  200,201 FROM s;
+}
+set ctx [register_box_geom db box_geom]
+set ::box_geom [list]
+proc box_geom {args} {
+  lappend ::box_geom [lindex $args 1]
+  return ""
+}
+do_execsql_test 4.1 {
+  SELECT count(*) FROM r1 WHERE id MATCH box(0,150,199,201)
+} 120
+do_test 4.2 {
+  foreach g $::box_geom {
+    if {$g!=$ctx} {error "pointer mismatch"}
+  }
+} {}
+
+# EVIDENCE-OF: R-09904-19077 The aParam[] array (size nParam) contains
+# the parameter values passed to the SQL function on the right-hand side
+# of the MATCH operator.
+proc box_geom {args} {
+  set ::box_geom [lindex $args 2]
+}
+foreach {tn q vals} {
+  1 "SELECT count(*) FROM r1 WHERE id MATCH box(1,2,3)" {1.0 2.0 3.0}
+  2 "SELECT count(*) FROM r1 WHERE id MATCH box(10001)" {10001.0}
+  3 "SELECT count(*) FROM r1 WHERE id MATCH box(-10001)" {-10001.0}
+} {
+  do_catchsql_test 5.$tn.1 $q {1 {SQL logic error}}
+  do_test 5.$tn.2 { set ::box_geom } $vals
+}
+
+do_execsql_test 5.0 {
+  CREATE VIRTUAL TABLE myrtree USING rtree(id, x1,x2);
+  INSERT INTO myrtree VALUES(1, 1, 1);
+  INSERT INTO myrtree VALUES(2, 2, 2);
+  INSERT INTO myrtree VALUES(3, 3, 3);
+}
+
+# EVIDENCE-OF: R-44448-00687 The pUser and xDelUser members of the
+# sqlite3_rtree_geometry structure are initially set to NULL.
+set ::box_geom_calls 0
+proc box_geom {args} {
+  incr ::box_geom_calls
+  return user_is_zero
+}
+do_execsql_test 5.1.1 {
+  SELECT * FROM myrtree WHERE id MATCH box(4, 5);
+} 
+do_test 5.1.2 { set ::box_geom_calls } 3
+
+
+# EVIDENCE-OF: R-55837-00155 The pUser variable may be set by the
+# callback implementation to any arbitrary value that may be useful to
+# subsequent invocations of the callback within the same query (for
+# example, a pointer to a complicated data structure used to test for
+# region intersection).
+#
+# EVIDENCE-OF: R-34745-08839 If the xDelUser variable is set to a
+# non-NULL value, then after the query has finished running SQLite
+# automatically invokes it with the value of the pUser variable as the
+# only argument.
+#
+set ::box_geom_calls 0
+proc box_geom {args} {
+  incr ::box_geom_calls
+  switch -- $::box_geom_calls {
+    1 {
+      return user_is_zero
+    }
+    2 {
+      return [list user box_geom_finalizer]
+    }
+  }
+  return ""
+}
+proc box_geom_finalizer {} {
+  set ::box_geom_finalizer "::box_geom_calls is $::box_geom_calls"
+}
+do_execsql_test 5.1.1 {
+  SELECT * FROM myrtree WHERE id MATCH box(4, 5);
+} 
+do_test 5.1.2 { set ::box_geom_calls } 3
+do_test 5.1.3 {
+  set ::box_geom_finalizer
+} {::box_geom_calls is 3}
+ 
+
+# EVIDENCE-OF: R-28176-28813 The xGeom callback always does a
+# depth-first search of the r-tree.
+#
+# For a breadth first search, final test case would return "B L" only.
+#
+do_execsql_test 6.0 {
+  CREATE VIRTUAL TABLE xyz USING rtree(x, x1,x2, y1,y2);
+  WITH s(i) AS (
+    VALUES(1) UNION ALL SELECT i+1 FROM s WHERE i<15
+  )
+  INSERT INTO xyz SELECT NULL, one.i,one.i+1,  two.i,two.i+1 FROM s one, s two;
+}
+do_execsql_test 6.1 {
+  SELECT count(*) FROM xyz_node
+} {10}
+proc box_geom {args} {
+  set coords [lindex $args 3]
+  set area [expr {
+    ([lindex $coords 1]-[lindex $coords 0]) * 
+    ([lindex $coords 3]-[lindex $coords 2])
+  }]
+  if {$area==1} {
+    lappend ::box_geom_calls L
+  } else {
+    lappend ::box_geom_calls B
+  }
+}
+set ::box_geom_calls [list]
+do_execsql_test 6.2 {
+  SELECT count(*) FROM xyz WHERE x MATCH box(0,20,0,20)
+} 225
+do_test 6.3 {
+  set prev ""
+  set box_calls [list]
+  foreach c $::box_geom_calls {
+    if {$c!=$prev} {
+      lappend ::box_calls $c
+      set prev $c
+    }
+  }
+  set ::box_calls
+} {B L B L B L B L B L B L B L B L B L}
+
+
+finish_test
+
diff --git a/ext/rtree/rtreedoc3.test b/ext/rtree/rtreedoc3.test
new file mode 100644
index 0000000000000000000000000000000000000000..0403409faeed1f6734912114a5197d936f75dce7
--- /dev/null
+++ b/ext/rtree/rtreedoc3.test
@@ -0,0 +1,292 @@
+# 2021 September 13
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# The focus of this file is testing the r-tree extension.
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+}
+source [file join [file dirname [info script]] rtree_util.tcl]
+source $testdir/tester.tcl
+set testprefix rtreedoc3
+
+ifcapable !rtree {
+  finish_test
+  return
+}
+
+
+# This command assumes that the argument is a node blob for a 2 dimensional
+# i32 r-tree table. It decodes and returns a list of cells from the node
+# as a list. Each cell is itself a list of the following form:
+#
+#    {$rowid $minX $maxX $minY $maxY}
+#
+# For internal (non-leaf) nodes, the rowid is replaced by the child node
+# number.
+#
+proc rnode_cells {aData} {
+  set nDim 2
+
+  set nData [string length $aData]
+  set nBytePerCell [expr (8 + 2*$nDim*4)]
+  binary scan [string range $aData 2 3] S nCell
+
+  set res [list]
+  for {set i 0} {$i < $nCell} {incr i} {
+    set iOff [expr $i*$nBytePerCell+4]
+    set cell [string range $aData $iOff [expr $iOff+$nBytePerCell-1]]
+    binary scan $cell WIIII rowid x1 x2 y1 y2
+    lappend res [list $rowid $x1 $x2 $y1 $y2]
+  }
+
+  return $res
+}
+
+# Interpret the first two bytes of the blob passed as the only parameter
+# as a 16-bit big-endian integer and return the value. If this blob is
+# the root node of an r-tree, this value is the height of the tree.
+#
+proc rnode_height {aData} {
+  binary scan [string range $aData 0 1] S nHeight
+  return $nHeight
+}
+
+# Return a blob containing node iNode of r-tree "rt".
+#
+proc rt_node_get {iNode} {
+  db one { SELECT data FROM rt_node WHERE nodeno=$iNode }
+}
+
+
+#--------------------------------------------------------------
+# API:
+#
+#    pq_init 
+#      Initialize a new test.
+#
+#    pq_test_callback
+#      Invoked each time the xQueryCallback function is called. This Tcl
+#      command checks that the arguments that SQLite passed to xQueryCallback
+#      are as expected.
+#
+#    pq_test_row
+#      Invoked each time a row is returned. Checks that the row returned
+#      was predicted by the documentation.
+#
+# DATA STRUCTURE:
+#    The priority queue is stored as a Tcl list. The order of elements in 
+#    the list is unimportant - it is just used as a set here. Each element
+#    in the priority queue is itself a list. The first element is the
+#    priority value for the entry (a real). Following this is a list of
+#    key-value pairs that make up the entries fields.
+#
+proc pq_init {} {
+  global Q 
+  set Q(pri_queue)  [list]
+
+  set nHeight [rnode_height [rt_node_get 1]]
+  set nCell [llength [rnode_cells [rt_node_get 1]]]
+
+  # EVIDENCE-OF: R-54708-13595 An R*Tree query is initialized by making
+  # the root node the only entry in a priority queue sorted by rScore.
+  lappend Q(pri_queue) [list 0.0 [list \
+    iLevel [expr $nHeight+1] \
+    iChild 1                 \
+    iCurrent   0             \
+  ]]
+}
+
+proc pq_extract {} {
+  global Q
+  if {[llength $Q(pri_queue)]==0} {
+    error "priority queue is empty!"
+  }
+
+  # Find the priority queue entry with the lowest score.
+  #
+  # EVIDENCE-OF: R-47257-47871 Smaller scores are processed first.
+  set iBest 0
+  set rBestScore [lindex $Q(pri_queue) 0 0]
+  for {set ii 1} {$ii < [llength $Q(pri_queue)]} {incr ii} {
+    set rScore [expr [lindex $Q(pri_queue) $ii 0]]
+    if {$rScore<$rBestScore} {
+      set rBestScore $rScore
+      set iBest $ii
+    }
+  }
+
+  # Extract the entry with the lowest score from the queue and return it. 
+  #
+  # EVIDENCE-OF: R-60002-49798 The query proceeds by extracting the entry
+  # from the priority queue that has the lowest score.
+  set ret [lindex $Q(pri_queue) $iBest]
+  set Q(pri_queue) [lreplace $Q(pri_queue) $iBest $iBest]
+
+  return $ret
+}
+
+proc pq_new_entry {rScore iLevel cell} {
+  global Q
+
+  set rowid_name "iChild"
+  if {$iLevel==0} { set rowid_name "iRowid" }
+
+  set kv [list]
+  lappend kv aCoord [lrange $cell 1 end]
+  lappend kv iLevel $iLevel
+
+  if {$iLevel==0} {
+    lappend kv iRowid [lindex $cell 0]
+  } else {
+    lappend kv iChild [lindex $cell 0]
+    lappend kv iCurrent 0
+  }
+
+  lappend Q(pri_queue) [list $rScore $kv]
+}
+
+proc pq_test_callback {L res} {
+  #pq_debug "pq_test_callback $L -> $res"
+  global Q
+
+  array set G $L    ;# "Got" - as in stuff passed to xQuery
+
+  # EVIDENCE-OF: R-65127-42665 If the extracted priority queue entry is a
+  # node (a subtree), then the next child of that node is passed to the
+  # xQueryFunc callback.
+  #
+  # If it had been a leaf, the row should have been returned, instead of
+  # xQueryCallback being called on a child - as is happening here.
+  foreach {rParentScore parent} [pq_extract] {}
+  array set P $parent ;# "Parent" - as in parent of expected cell
+  if {$P(iLevel)==0} { error "query callback mismatch (1)" }
+  set child_node [rnode_cells [rt_node_get $P(iChild)]]
+  set expected_cell [lindex $child_node $P(iCurrent)]
+  set expected_coords [lrange $expected_cell 1 end]
+  if {[llength $expected_coords] != [llength $G(aCoord)]} {
+  puts [array get P]
+  puts "E: $expected_coords  G: $G(aCoord)"
+    error "coordinate mismatch in query callback (1)"
+  }
+  foreach a [lrange $expected_cell 1 end] b $G(aCoord) {
+    if {$a!=$b} { error "coordinate mismatch in query callback (2)" }
+  }
+
+  # Check level is as expected
+  #
+  if {$G(iLevel) != $P(iLevel)-1} {
+    error "iLevel mismatch in query callback (1)"
+  }
+
+  # Unless the callback returned NOT_WITHIN, add the entry to the priority
+  # queue.
+  #
+  # EVIDENCE-OF: R-28754-35153 Those subelements for which the xQueryFunc
+  # callback sets eWithin to PARTLY_WITHIN or FULLY_WITHIN are added to
+  # the priority queue using the score supplied by the callback.
+  #
+  # EVIDENCE-OF: R-08681-45277 Subelements that return NOT_WITHIN are
+  # discarded.
+  set r [lindex $res 0]
+  set rScore [lindex $res 1]
+  if {$r!="fully" && $r!="partly" && $r!="not"} {
+    error "unknown result: $r - expected \"fully\", \"partly\" or \"not\""
+  }
+  if {$r!="not"} {
+    pq_new_entry $rScore [expr $P(iLevel)-1] $expected_cell
+  }
+
+  # EVIDENCE-OF: R-07194-63805 If the node has more children then it is
+  # returned to the priority queue. Otherwise it is discarded.
+  incr P(iCurrent)
+  if {$P(iCurrent)<[llength $child_node]} {
+    lappend Q(pri_queue) [list $rParentScore [array get P]]
+  }
+}
+
+proc pq_test_result {id x1 x2 y1 y2} {
+  #pq_debug "pq_test_result $id $x1 $x2 $y1 $y2"
+  foreach {rScore next} [pq_extract] {}
+
+  # The extracted entry must be a leaf (otherwise, xQueryCallback would
+  # have been called on the extracted entries children instead of just
+  # returning the data).
+  #
+  # EVIDENCE-OF: R-13214-54017 If that entry is a leaf (meaning that it is
+  # an actual R*Tree entry and not a subtree) then that entry is returned
+  # as one row of the query result.
+  array set N $next
+  if {$N(iLevel)!=0} { error "result row mismatch (1)" }
+
+  if {$x1!=[lindex $N(aCoord) 0] || $x2!=[lindex $N(aCoord) 1]
+   || $y1!=[lindex $N(aCoord) 2] || $y2!=[lindex $N(aCoord) 3]
+  } {
+    if {$N(iLevel)!=0} { error "result row mismatch (2)" }
+  }
+
+  if {$id!=$N(iRowid)} { error "result row mismatch (3)" }
+}
+
+proc pq_done {} {
+  global Q
+  # EVIDENCE-OF: R-57438-45968 The query runs until the priority queue is
+  # empty.
+  if {[llength $Q(pri_queue)]>0} {
+    error "priority queue is not empty!"
+  }
+}
+
+proc pq_debug {caption} {
+  global Q
+
+  puts "**** $caption ****"
+  set i 0
+  foreach q [lsort -real -index 0 $Q(pri_queue)] { 
+    puts "PQ $i: $q" 
+    incr i
+  }
+}
+
+#--------------------------------------------------------------
+
+proc box_query {a} {
+  set res [list fully [expr rand()]]
+  pq_test_callback $a $res
+  return $res
+}
+
+register_box_query db box_query
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE rt USING rtree_i32(id,  x1,x2,  y1,y2);
+  WITH s(i) AS (
+    SELECT 0 UNION ALL SELECT i+1 FROM s WHERE i<64
+  )
+  INSERT INTO rt SELECT NULL, a.i, a.i+1, b.i, b.i+1 FROM s a, s b;
+}
+
+proc box_query {a} {
+  set res [list fully [expr rand()]]
+  pq_test_callback $a $res
+  return $res
+}
+
+pq_init
+db eval { SELECT id, x1,x2, y1,y2 FROM rt WHERE id MATCH qbox() } {
+  pq_test_result $id $x1 $x2 $y1 $y2
+}
+pq_done
+
+finish_test
+
+
diff --git a/ext/rtree/rtreefuzz001.test b/ext/rtree/rtreefuzz001.test
new file mode 100644
index 0000000000000000000000000000000000000000..c81c41da30288ee018aed94478057d81c14f0336
--- /dev/null
+++ b/ext/rtree/rtreefuzz001.test
@@ -0,0 +1,1211 @@
+# 2012-12-21
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test cases for corrupt database files.
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source $testdir/tester.tcl
+
+ifcapable !deserialize||!rtree {
+  finish_test
+  return
+}
+database_may_be_corrupt
+
+do_test rtreefuzz001-100 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 24576 pagesize 4096 filename c1b.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 03 00 00 00 06   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 03 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 03   ................
+|     96: 00 2e 30 38 0d 00 00 00 04 0e 9c 00 0f ad 0f 4f   ..08...........O
+|    112: 0e fc 0e 9c 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   3728: 00 00 00 00 00 00 00 00 00 00 00 00 5e 04 07 17   ............^...
+|   3744: 1f 1f 01 81 0b 74 61 62 6c 65 74 31 5f 70 61 72   .....tablet1_par
+|   3760: 65 6e 74 74 31 5f 70 61 72 65 6e 74 04 43 52 45   entt1_parent.CRE
+|   3776: 41 54 45 20 54 41 42 4c 45 20 22 74 31 5f 70 61   ATE TABLE .t1_pa
+|   3792: 72 66 6e 74 22 28 6e 6f 64 65 6e 6f 20 49 4e 54   rfnt.(nodeno INT
+|   3808: 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59   EGER PRIMARY KEY
+|   3824: 2c 70 61 72 65 6e 74 6e 6f 64 65 29 51 03 06 17   ,parentnode)Q...
+|   3840: 1b 1b 01 7b 74 61 62 6c 65 74 31 5f 6e 6f 64 65   ....tablet1_node
+|   3856: 74 31 5f 6e 6f 64 65 03 43 52 45 41 54 45 20 54   t1_node.CREATE T
+|   3872: 41 42 4c 45 20 22 74 31 5f 6e 6f 64 65 22 28 6e   ABLE .t1_node.(n
+|   3888: 6f 64 65 6e 6f 20 49 4e 54 45 47 45 52 20 50 52   odeno INTEGER PR
+|   3904: 49 4d 41 52 59 20 4b 45 59 2c 64 61 74 61 29 5c   IMARY KEY,data).
+|   3920: 02 07 17 1d 1d 01 81 0b 74 61 62 6c 65 74 31 5f   ........tablet1_
+|   3936: 72 6f 77 69 64 74 31 5f 72 6f 77 69 64 02 43 52   rowidt1_rowid.CR
+|   3952: 45 41 54 45 20 54 41 42 4c 45 20 22 74 31 5f 72   EATE TABLE .t1_r
+|   3968: 6f 77 69 64 22 28 72 6f 77 69 64 20 49 4e 54 45   owid.(rowid INTE
+|   3984: 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c   GER PRIMARY KEY,
+|   4000: 6e 6f 64 65 6e 6f 2c 61 30 2c 61 31 29 51 01 07   nodeno,a0,a1)Q..
+|   4016: 17 11 11 08 81 0f 74 61 62 6c 65 74 31 74 31 43   ......tablet1t1C
+|   4032: 52 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41   REATE VIRTUAL TA
+|   4048: 42 4c 45 20 74 31 20 55 53 49 4e 47 20 72 74 72   BLE t1 USING rtr
+|   4064: 65 65 28 69 64 2c 78 30 2c 78 31 2c 79 30 2c 79   ee(id,x0,x1,y0,y
+|   4080: 31 2c 2b 6c 61 62 65 6c 2c 2b 6f 74 68 65 72 29   1,+label,+other)
+| page 2 offset 4096
+|      0: 0d 0c cd 00 74 08 75 01 0f e8 0c b3 0f d0 0f b7   ....t.u.........
+|     16: 0f 9e 0f 91 0f 81 0f 70 0f 5e 0f 4f 0f 39 0f 29   .......p.^.O.9.)
+|     32: 0f 18 0f 06 0e f7 0c 65 0e 58 0d c2 0d 2c 0c 25   .......e.X...,.%
+|     48: 0b 85 0a e5 0a 45 09 a5 09 05 0c 83 0c 93 0c a3   .....E..........
+|     64: 0f f0 0c 15 0b 75 0a d5 0a 35 09 95 08 f5 0e d8   .....u...5......
+|     80: 0e 42 0d ac 0d 16 0c 05 0b 65 0a c5 0a 25 09 85   .B.......e...%..
+|     96: 08 e5 0e c8 0e 32 0d 9c 0d 06 0b f5 0b 55 0a b5   .....2.......U..
+|    112: 0a 15 09 75 08 d5 0e b8 0e 22 0d 8c 0c f6 0b e5   ...u............
+|    128: 0b 45 0a a5 0a 05 09 65 08 c5 0e a8 0e 12 0d 7c   .E.....e.......|
+|    144: 0c e6 0b d5 0b 35 0a 95 09 f5 09 55 08 b5 0e 98   .....5.....U....
+|    160: 0e 02 0d 6c 0c d6 0b c5 0b 25 0a 85 09 e5 09 45   ...l.....%.....E
+|    176: 08 a5 0e 88 0d f2 0d 5c 0c 55 0b b5 0b 15 0a 75   .........U.....u
+|    192: 09 d5 09 35 08 95 0e 78 0d e2 0d 4c 0c 45 0b a5   ...5...x...L.E..
+|    208: 0b 05 0a 65 09 c5 09 25 08 85 0e 68 0d d2 0d 3c   ...e...%...h...<
+|    224: 0c 35 0b 95 0a f5 0a 55 09 b5 09 15 08 75 0c 75   .5.....U.....u.u
+|   2160: 00 00 00 00 00 0d 8e 75 05 00 01 1b 00 04 62 6f   .......u......bo
+|   2176: 78 2d 39 2c 39 0d 8e 11 05 00 01 1b 00 02 62 6f   x-9,9.........bo
+|   2192: 78 2d 39 2c 38 0d 8d 2d 05 00 01 1b 00 02 62 6f   x-9,8..-......bo
+|   2208: 78 2d 39 2c 37 0d 8c 49 05 00 01 1b 00 02 62 6f   x-9,7..I......bo
+|   2224: 78 2d 39 2c 36 0d 8b 65 05 00 01 1b 00 02 62 6f   x-9,6..e......bo
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+|   1904: 00 00 00 04 4e 40 00 00 00 40 40 00 00 3f 80 00   ....N@...@@..?..
+|   1920: 00 40 00 00 00 00 00 00 00 00 00 04 b2 40 00 00   .@...........@..
+|   1936: 00 40 40 00 00 40 00 00 00 40 40 00 00 00 00 00   .@@..@...@@.....
+|   1952: 00 00 00 05 16 40 00 00 00 40 40 00 00 40 40 00   .....@...@@..@@.
+|   1968: 00 40 80 00 00 00 00 00 00 00 00 05 7a 40 00 00   .@..........z@..
+|   1984: 00 40 40 00 00 40 80 00 00 40 a0 00 00 00 00 00   .@@..@...@......
+|   2000: 00 00 00 05 de 40 00 00 00 40 40 00 00 40 a0 00   .....@...@@..@..
+|   2016: 00 40 c0 00 00 00 00 00 00 00 00 04 4f 40 40 00   .@..........O@@.
+|   2032: 00 40 80 00 00 3f 80 00 00 40 00 00 00 00 00 00   .@...?...@......
+|   2048: 00 00 00 04 b3 40 40 00 00 40 80 00 00 40 00 00   .....@@..@...@..
+|   2064: 00 40 40 00 00 00 00 00 00 00 00 05 17 40 40 00   .@@..........@@.
+|   2080: 00 40 80 00 00 40 40 00 00 40 80 00 00 00 00 00   .@...@@..@......
+|   2096: 00 00 00 05 7b 40 40 00 00 40 80 00 00 40 80 00   .....@@..@...@..
+|   2112: 00 40 a0 00 00 00 00 00 00 00 00 05 df 40 40 00   .@...........@@.
+|   2128: 00 40 80 00 00 40 a0 00 00 40 c0 00 00 00 00 00   .@...@...@......
+|   2144: 00 00 00 03 ec 40 80 00 00 40 a0 00 00 00 00 00   .....@...@......
+|   2160: 00 3f 80 00 00 00 00 00 00 00 00 04 50 40 80 00   .?..........P@..
+|   2176: 00 40 a0 00 00 3f 80 00 00 40 00 00 00 00 00 00   .@...?...@......
+|   2192: 00 00 00 04 b4 40 80 00 00 40 a0 00 00 40 00 00   .....@...@...@..
+|   2208: 00 40 40 00 00 00 00 00 00 00 00 05 18 40 80 00   .@@..........@..
+|   2224: 00 40 a0 00 00 40 40 00 00 40 80 00 00 00 00 00   .@...@@..@......
+|   2240: 00 00 00 05 7c 40 80 00 00 40 a0 00 00 40 80 00   ....|@...@...@..
+|   2256: 00 40 a0 00 00 00 00 00 00 00 00 05 e0 40 80 00   .@...........@..
+|   2272: 00 40 a0 00 00 40 a0 00 00 40 c0 00 00 00 00 00   .@...@...@......
+|   2288: 00 00 00 03 f0 41 00 00 00 41 10 00 00 00 00 00   .....A...A......
+|   2304: 00 3f 80 00 00 00 00 00 00 00 00 04 54 41 00 00   .?..........TA..
+|   2320: 00 41 10 00 00 3f 80 00 00 40 00 00 00 00 00 00   .A...?...@......
+|   2336: 00 00 00 04 b8 41 00 00 00 41 10 00 00 40 00 00   .....A...A...@..
+|   2352: 00 40 40 00 00 00 00 00 00 00 00 05 1c 41 00 00   .@@..........A..
+|   2368: 00 41 10 00 00 40 40 00 00 40 80 00 00 00 00 00   .A...@@..@......
+|   2384: 00 00 00 05 80 41 00 00 00 41 10 00 00 40 80 00   .....A...A...@..
+|   2400: 00 40 a0 00 00 00 00 00 00 00 00 05 e4 41 00 00   .@...........A..
+|   2416: 00 41 10 00 00 40 a0 00 00 40 c0 00 00 00 00 00   .A...@...@......
+|   2432: 00 00 00 06 48 41 00 00 00 41 10 00 00 40 c0 00   ....HA...A...@..
+|   2448: 00 40 e0 00 00 00 00 00 00 00 00 06 ac 41 00 00   .@...........A..
+|   2464: 00 41 10 00 00 40 e0 00 00 41 00 00 00 00 00 00   .A...@...A......
+|   2480: 00 00 00 07 10 41 00 00 00 41 10 00 00 41 00 00   .....A...A...A..
+|   2496: 00 41 10 00 00 00 00 00 00 00 00 03 f1 41 10 00   .A...........A..
+|   2512: 00 41 20 00 00 00 00 00 00 3f 80 00 00 00 00 00   .A ......?......
+|   2528: 00 00 00 04 55 41 10 00 00 41 20 00 00 3f 80 00   ....UA...A ..?..
+|   2544: 00 40 00 00 00 00 00 00 00 00 00 04 b9 41 10 00   .@...........A..
+|   2560: 00 41 20 00 00 40 00 00 00 40 40 00 00 00 00 00   .A ..@...@@.....
+|   2576: 00 00 00 05 1d 41 10 00 00 41 20 00 00 40 40 00   .....A...A ..@@.
+|   2592: 00 40 80 00 00 00 00 00 00 00 00 05 81 41 10 00   .@...........A..
+|   2608: 00 41 20 00 00 40 80 00 00 40 a0 00 00 00 00 00   .A ..@...@......
+|   2624: 00 00 00 05 e5 41 10 00 00 41 20 00 00 40 a0 00   .....A...A ..@..
+|   2640: 00 40 c0 00 00 00 00 00 00 00 00 06 49 41 10 00   .@..........IA..
+|   2656: 00 41 20 00 00 40 c0 00 00 40 e0 00 00 00 00 00   .A ..@...@......
+|   2672: 00 00 00 06 ad 41 10 00 00 41 20 00 00 40 e0 00   .....A...A ..@..
+|   2688: 00 41 00 00 00 00 00 00 00 00 00 07 11 41 10 00   .A...........A..
+|   2704: 00 41 20 00 00 41 00 00 00 41 10 00 00 00 00 00   .A ..A...A......
+|   2848: 00 00 00 00 00 00 00 00 00 00 00 00 00 89 50 01   ..............P.
+|   2864: 04 00 93 24 00 01 00 04 00 00 00 00 00 00 00 03   ...$............
+|   2880: 00 00 00 00 40 80 00 00 00 00 00 00 3f 80 00 00   ....@.......?...
+|   2896: 00 00 00 00 00 00 00 02 00 00 00 00 41 20 00 00   ............A ..
+|   2912: 00 00 00 00 41 10 00 00 00 00 00 00 00 00 00 04   ....A...........
+|   2928: 00 00 00 00 41 20 00 00 40 c0 00 00 41 20 00 00   ....A ..@...A ..
+|   2944: 00 00 00 00 00 00 00 05 40 a0 00 00 41 00 00 00   ........@...A...
+|   2960: 00 00 00 00 41 20 00 00 00 00 00 00 00 00 00 00   ....A ..........
+| page 6 offset 20480
+|      0: 0d 00 00 00 02 06 5a 00 0b 2d 06 5a 00 00 00 00   ......Z..-.Z....
+|   1616: 00 00 00 00 00 00 00 00 00 00 89 50 05 04 00 93   ...........P....
+|   1632: 24 00 00 00 1c 00 00 00 00 00 00 03 ed 40 a0 00   $............@..
+|   1648: 00 40 c0 00 00 00 00 00 00 3f 80 00 00 00 00 00   .@.......?......
+|   1664: 00 00 00 04 51 40 a0 00 00 40 c0 00 00 3f 80 00   ....Q@...@...?..
+|   1680: 00 40 00 00 00 00 00 00 00 00 00 04 b5 40 a0 00   .@...........@..
+|   1696: 00 40 c0 00 00 40 00 00 00 40 40 00 00 00 00 00   .@...@...@@.....
+|   1712: 00 00 00 05 19 40 a0 00 00 40 c0 00 00 40 40 00   .....@...@...@@.
+|   1728: 00 40 80 00 00 00 00 00 00 00 00 05 7d 40 a0 00   .@...........@..
+|   1744: 00 40 c0 00 00 40 80 00 00 40 a0 00 00 00 00 00   .@...@...@......
+|   1760: 00 00 00 05 e1 40 a0 00 00 40 c0 00 00 40 a0 00   .....@...@...@..
+|   1776: 00 40 c0 00 00 00 00 00 00 00 00 06 45 40 a0 00   .@..........E@..
+|   1792: 00 40 c0 00 00 40 c0 00 00 40 e0 00 00 00 00 00   .@...@...@......
+|   1808: 00 00 00 06 a9 40 a0 00 00 40 c0 00 00 40 e0 00   .....@...@...@..
+|   1824: 00 41 00 00 00 00 00 00 00 00 00 07 0d 40 a0 00   .A...........@..
+|   1840: 00 40 c0 00 00 41 00 00 00 41 10 00 00 00 00 00   .@...A...A......
+|   1856: 00 00 00 03 ee 40 c0 00 00 40 e0 00 00 00 00 00   .....@...@......
+|   1872: 00 3f 80 00 00 00 00 00 00 00 00 04 52 40 c0 00   .?..........R@..
+|   1888: 00 40 e0 00 00 3f 80 00 00 40 00 00 00 00 00 00   .@...?...@......
+|   1904: 00 00 00 04 b6 40 c0 00 00 40 e0 00 00 40 00 00   .....@...@...@..
+|   1920: 00 40 40 00 00 00 00 00 00 00 00 05 1a 40 c0 00   .@@..........@..
+|   1936: 00 40 e0 00 00 40 40 00 00 40 80 00 00 00 00 00   .@...@@..@......
+|   1952: 00 00 00 05 7e 40 c0 00 00 40 e0 00 00 40 80 00   ....~@...@...@..
+|   1968: 00 40 a0 00 00 00 00 00 00 00 00 05 e2 40 c0 00   .@...........@..
+|   1984: 00 40 e0 00 00 40 a0 00 00 40 c0 00 00 00 00 00   .@...@...@......
+|   2000: 00 00 00 06 46 40 c0 00 00 40 e0 00 00 40 c0 00   ....F@...@...@..
+|   2016: 00 40 e0 00 00 00 00 00 00 00 00 06 aa 40 c0 00   .@...........@..
+|   2032: 00 40 e0 00 00 40 e0 00 00 41 00 00 00 00 00 00   .@...@...A......
+|   2048: 00 00 00 07 0e 40 c0 00 00 40 e0 00 00 41 00 00   .....@...@...A..
+|   2064: 00 41 10 00 00 00 00 00 00 00 00 03 ef 40 e0 00   .A...........@..
+|   2080: 00 41 00 00 00 00 00 00 00 3f 80 00 00 00 00 00   .A.......?......
+|   2096: 00 00 00 04 53 40 e0 00 00 41 00 00 00 3f 80 00   ....S@...A...?..
+|   2112: 00 40 00 00 00 00 00 00 00 00 00 04 b7 40 e0 00   .@...........@..
+|   2128: 00 41 00 00 00 40 00 00 00 40 40 00 00 00 00 00   .A...@...@@.....
+|   2144: 00 00 00 05 1b 40 e0 00 00 41 00 00 00 40 40 00   .....@...A...@@.
+|   2160: 00 40 80 00 00 00 00 00 00 00 00 05 7f 40 e0 00   .@...........@..
+|   2176: 00 41 00 00 00 40 80 00 00 40 a0 00 00 00 00 00   .A...@...@......
+|   2192: 00 00 00 05 e3 40 e0 00 00 41 00 00 00 40 a0 00   .....@...A...@..
+|   2208: 00 40 c0 00 00 00 00 00 00 00 00 06 47 40 e0 00   .@..........G@..
+|   2224: 00 41 00 00 00 40 c0 00 00 40 e0 00 00 00 00 00   .A...@...@......
+|   2240: 00 00 00 06 ab 40 e0 00 00 41 00 00 00 40 e0 00   .....@...A...@..
+|   2256: 00 41 00 00 00 00 00 00 00 00 00 07 0f 40 e0 00   .A...........@..
+|   2272: 00 41 00 00 00 41 00 00 00 41 10 00 00 00 00 00   .A...A...A......
+|   2288: 00 00 00 07 73 40 e0 00 00 41 00 00 00 41 10 00   ....s@...A...A..
+|   2304: 00 41 20 00 00 00 00 00 00 00 00 00 00 00 00 00   .A .............
+|   2848: 00 00 00 00 00 00 00 00 00 00 00 00 00 89 50 04   ..............P.
+|   2864: 04 00 93 24 00 00 00 18 00 00 00 00 00 00 06 43   ...$...........C
+|   2880: 40 40 00 00 40 80 00 00 40 c0 00 00 40 e0 00 00   @@..@...@...@...
+|   2896: 00 00 00 00 00 00 06 42 40 00 00 00 40 40 00 00   .......B@...@@..
+|   2912: 40 c0 00 00 40 e0 00 00 00 00 00 00 00 00 06 41   @...@..........A
+|   2928: 3f 80 00 00 40 00 00 00 40 c0 00 00 40 e0 00 00   ?...@...@...@...
+|   2944: 00 00 00 00 00 00 06 40 00 00 00 00 3f 80 00 00   .......@....?...
+|   2960: 40 c0 00 00 40 e0 00 00 00 00 00 00 00 00 06 44   @...@..........D
+|   2976: 40 80 00 00 40 a0 00 00 40 c0 00 00 40 e0 00 00   @...@...@...@...
+|   2992: 00 00 00 00 00 00 06 a7 40 40 00 00 40 80 00 00   ........@@..@...
+|   3008: 40 e0 00 00 41 00 00 00 00 00 00 00 00 00 06 a6   @...A...........
+|   3024: 40 00 00 00 40 40 00 00 40 e0 00 00 41 00 00 00   @...@@..@...A...
+|   3040: 00 00 00 00 00 00 06 a5 3f 80 00 00 40 00 00 00   ........?...@...
+|   3056: 40 e0 00 00 41 00 00 00 00 00 00 00 00 00 06 a4   @...A...........
+|   3072: 00 00 00 00 3f 80 00 00 40 e0 00 00 41 00 00 00   ....?...@...A...
+|   3088: 00 00 00 00 00 00 06 a8 40 80 00 00 40 a0 00 00   ........@...@...
+|   3104: 40 e0 00 00 41 00 00 00 00 00 00 00 00 00 07 0a   @...A...........
+|   3120: 40 00 00 00 40 40 00 00 41 00 00 00 41 10 00 00   @...@@..A...A...
+|   3136: 00 00 00 00 00 00 07 09 3f 80 00 00 40 00 00 00   ........?...@...
+|   3152: 41 00 00 00 41 10 00 00 00 00 00 00 00 00 07 08   A...A...........
+|   3168: 00 00 00 00 3f 80 00 00 41 00 00 00 41 10 00 00   ....?...A...A...
+|   3184: 00 00 00 00 00 00 07 0b 40 40 00 00 40 80 00 00   ........@@..@...
+|   3200: 41 00 00 00 41 10 00 00 00 00 00 00 00 00 07 0c   A...A...........
+|   3216: 40 80 00 00 40 a0 00 00 41 00 00 00 41 10 00 00   @...@...A...A...
+|   3232: 00 00 00 00 00 00 07 6e 40 00 00 00 40 40 00 00   .......n@...@@..
+|   3248: 41 10 00 00 41 20 00 00 00 00 00 00 00 00 07 6d   A...A .........m
+|   3264: 3f 80 00 00 40 00 00 00 41 10 00 00 41 20 00 00   ?...@...A...A ..
+|   3280: 00 00 00 00 00 00 07 6c 00 00 00 00 3f 80 00 00   .......l....?...
+|   3296: 41 10 00 00 41 20 00 00 00 00 00 00 00 00 07 6f   A...A .........o
+|   3312: 40 40 00 00 40 80 00 00 41 10 00 00 41 20 00 00   @@..@...A...A ..
+|   3328: 00 00 00 00 00 00 07 70 40 80 00 00 40 a0 00 00   .......p@...@...
+|   3344: 41 10 00 00 41 20 00 00 00 00 00 00 00 00 07 71   A...A .........q
+|   3360: 40 a0 00 00 40 c0 00 00 41 10 00 00 41 20 00 00   @...@...A...A ..
+|   3376: 00 00 00 00 00 00 07 72 40 c0 00 00 40 e0 00 00   .......r@...@...
+|   3392: 41 10 00 00 41 20 00 00 00 00 00 00 00 00 07 74   A...A .........t
+|   3408: 41 00 00 00 41 10 00 00 41 10 00 00 41 20 00 00   A...A...A...A ..
+|   3424: 00 00 00 00 00 00 07 75 41 10 00 00 41 20 00 00   .......uA...A ..
+|   3440: 41 10 00 00 41 20 00 00 00 00 00 00 00 00 00 00   A...A ..........
+| end c1b.db
+  }]
+  catchsql {
+     PRAGMA writable_schema = 1;
+     SELECT rtreecheck('t1');
+  }
+} {1 {SQL logic error}}
+
+do_test rtreefuzz001-200 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 16384 pagesize 4096 filename c3.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 04   .....@  ........
+|     32: 00 00 00 00 01 00 00 00 00 00 00 04 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 00 00 00 04 0e 9c 00 0f ad 0f 4f   ...............O
+|    112: 0e fc 0e 9c 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   3728: 00 00 00 00 00 00 00 00 00 00 00 00 5e 04 07 17   ............^...
+|   3744: 1f 1f 01 81 0b 74 61 62 6c 65 74 31 5f 70 61 72   .....tablet1_par
+|   3760: 65 6e 74 74 31 5f 70 61 72 65 6e 74 04 43 52 45   entt1_parent.CRE
+|   3776: 41 54 45 20 54 41 42 4c 45 20 22 74 31 5f 70 61   ATE TABLE .t1_pa
+|   3792: 72 65 6e 74 22 28 6e 6f 64 65 6e 6f 20 49 4e 54   rent.(nodeno INT
+|   3808: 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59   EGER PRIMARY KEY
+|   3824: 2c 70 61 72 65 6e 74 6e 6f 64 65 29 51 03 06 17   ,parentnode)Q...
+|   3840: 1b 1b 01 7b 74 61 62 6c 65 74 31 5f 6e 6f 64 65   ....tablet1_node
+|   3856: 74 31 5f 6e 6f 64 65 03 43 52 45 41 54 45 20 54   t1_node.CREATE T
+|   3872: 41 42 4c 45 20 22 74 31 5f 6e 6f 64 65 22 28 6e   ABLE .t1_node.(n
+|   3888: 6f 64 65 6e 6f 20 49 4e 54 45 47 45 52 20 50 52   odeno INTEGER PR
+|   3904: 49 4d 41 52 59 20 4b 45 59 2c 64 61 74 61 29 5c   IMARY KEY,data).
+|   3920: 02 07 17 1d 1d 01 81 0b 74 61 62 6c 65 74 31 5f   ........tablet1_
+|   3936: 72 6f 77 69 64 74 31 5f 72 6f 77 69 64 02 43 52   rowidt1_rowid.CR
+|   3952: 45 41 54 45 20 54 41 42 4c 45 20 22 74 31 5f 72   EATE TABLE .t1_r
+|   3968: 6f 77 69 64 22 28 72 6f 77 69 64 20 49 4e 54 45   owid.(rowid INTE
+|   3984: 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c   GER PRIMARY KEY,
+|   4000: 6e 6f 64 65 6e 6f 2c 61 30 2c 61 31 29 51 01 07   nodeno,a0,a1)Q..
+|   4016: 17 11 11 08 81 0f 74 61 62 6c 65 74 31 74 31 43   ......tablet1t1C
+|   4032: 52 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41   REATE VIRTUAL TA
+|   4048: 42 4c 45 20 74 31 20 55 53 49 4e 47 20 72 74 72   BLE t1 USING rtr
+|   4064: 65 65 28 69 64 2c 78 30 2c 78 31 2c 79 30 2c 79   ee(id,x0,x1,y0,y
+|   4080: 31 2c 2b 6c 61 62 65 6c 2c 2b 6f 74 68 65 72 29   1,+label,+other)
+| page 2 offset 4096
+|      0: 0d 00 00 00 0e 0e f7 00 0f e8 0f d0 0f b7 0f 9e   ................
+|     16: 0f 91 0f 81 0f 70 0f 5e 0f 4f 0f 39 0f 29 0f 18   .....p.^.O.9.)..
+|     32: 0f 06 0e f7 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   3824: 00 00 00 00 00 00 00 0d 0e 05 00 09 1d 00 74 6f   ..............to
+|   3840: 70 20 68 61 6c 66 10 0d 05 00 09 23 00 62 6f 74   p half.....#.bot
+|   3856: 74 6f 6d 20 68 61 6c 66 0f 0c 05 00 09 21 00 72   tom half.....!.r
+|   3872: 69 67 68 74 20 68 61 6c 66 0e 0b 05 00 09 1f 00   ight half.......
+|   3888: 6c 65 66 74 20 68 61 6c 66 14 0a 05 00 09 2b 00   left half.....+.
+|   3904: 74 68 65 20 77 68 6f 6c 65 20 74 68 69 6e 67 0d   the whole thing.
+|   3920: 09 05 00 09 1d 00 74 6f 70 20 65 64 67 65 10 08   ......top edge..
+|   3936: 05 00 09 23 00 62 6f 74 74 6f 6d 20 65 64 67 65   ...#.bottom edge
+|   3952: 0f 07 05 00 09 21 00 72 69 67 68 74 20 65 64 67   .....!.right edg
+|   3968: 65 0e 06 05 00 09 1f 00 6c 65 66 74 20 65 64 67   e.......left edg
+|   3984: 65 0b 05 05 00 09 19 00 63 65 6e 74 65 72 17 04   e.......center..
+|   4000: 05 00 09 31 00 75 70 70 65 72 2d 72 69 67 68 74   ...1.upper-right
+|   4016: 20 63 6f 72 6e 65 72 17 03 05 00 09 31 00 6c 6f    corner.....1.lo
+|   4032: 77 65 72 2d 72 69 67 68 74 27 60 f6 32 6e 65 72   wer-right'`.2ner
+|   4048: 16 02 05 00 09 2f 00 75 70 70 65 72 2d 6c 65 66   ...../.upper-lef
+|   4064: 74 20 63 6f 72 6e 65 72 16 01 05 00 09 2f 00 6c   t corner...../.l
+|   4080: 6f 77 65 72 2d 6c 65 66 74 20 63 6f 72 6e 65 72   ower-left corner
+| page 3 offset 8192
+|      0: 0d 00 00 00 02 0b 2d 00 0b 2d 00 00 00 00 00 00   ......-..-......
+|   2848: 00 00 00 00 00 00 00 00 00 00 00 00 00 89 50 01   ..............P.
+|   2864: 04 00 93 24 00 00 00 0e 00 00 00 00 00 00 00 01   ...$............
+|   2880: 00 00 00 00 41 20 00 00 00 00 00 00 41 20 01 00   ....A ......A ..
+|   2896: 00 00 00 00 00 00 00 02 00 00 00 00 41 00 00 04   ............A...
+|   2912: 2b 40 00 0c 42 c8 00 00 00 00 00 00 00 00 00 03   +@..B...........
+|   2928: 42 b4 00 00 42 c8 00 00 00 00 00 00 41 20 00 00   B...B.......A ..
+|   2944: 00 00 00 00 00 00 00 04 42 b4 00 00 42 c8 00 00   ........B...B...
+|   2960: 42 b4 00 00 42 c8 00 00 00 00 00 00 00 00 00 05   B...B...........
+|   2976: 42 20 00 00 42 70 00 00 42 20 00 00 42 70 00 00   B ..Bp..B ..Bp..
+|   2992: 00 00 00 00 00 00 00 60 00 00 00 04 0a 00 00 00   .......`........
+|   3008: 00 00 00 42 c8 00 00 00 00 00 00 00 00 00 07 42   ...B...........B
+|   3024: be 00 00 42 c8 00 00 00 00 00 00 42 c8 00 00 00   ...B.......B....
+|   3040: 00 00 00 00 00 00 08 00 00 00 00 42 c8 00 00 00   ...........B....
+|   3056: 00 00 00 40 a0 00 00 00 00 00 00 00 00 00 09 00   ...@............
+|   3072: 00 00 00 42 c8 00 00 42 be 00 00 42 c8 00 00 00   ...B...B...B....
+|   3088: 00 00 00 00 00 00 0a 00 00 00 00 42 c8 00 00 00   ...........B....
+|   3104: 00 00 00 42 c8 00 00 00 00 00 00 00 00 00 0b 00   ...B............
+|   3120: 00 00 00 42 48 00 00 00 00 00 04 2c 80 00 00 00   ...BH......,....
+|   3136: 00 00 00 00 00 00 c4 24 c0 00 04 2c 80 00 00 00   .......$...,....
+|   3152: 00 00 04 2c 80 00 00 00 00 00 00 00 00 00 d0 00   ...,............
+|   3168: 00 00 04 2c 80 00 00 00 00 00 04 24 80 00 00 00   ...,.......$....
+|   3184: 00 00 00 00 00 00 e0 00 00 00 04 2c 80 00 04 24   ...........,...$
+|   3200: c0 00 04 2c 00 00 00 00 00 00 00 00 00 00 00 00   ...,............
+| page 4 offset 12288
+|      0: 0d 00 00 00 00 10 00 00 00 00 00 00 00 00 00 00   ................
+| end c3.db
+  }]
+  catchsql {
+    WITH RECURSIVE
+      c1(x) AS (VALUES(0) UNION ALL SELECT x+1 FROM c1 WHERE x<99),
+      c2(y) AS (VALUES(0) UNION ALL SELECT y+1 FROM c2 WHERE y<99)
+    INSERT INTO t1(id, x0,x1,y0,y1,label)
+      SELECT 1000+x+y*100, x, x+1, y, y+1, printf('box-%d,%d',x,y) FROM c1, c2;
+  }
+} {1 {database disk image is malformed}}
+do_test rtreefuzz001-210 {
+  catchsql {
+    SELECT rtreecheck('t1');
+  }
+} {/1 .*corrupt.*/}
+
+do_test rtreefuzz001-300 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 16384 pagesize 4096 filename c4.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 04   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 04 00 00 00 04   ................
+|     96: 00 00 00 00 0d 00 00 00 04 0e 9c 00 0f ad 0f 4f   ...............O
+|    112: 0e fc 0e 9c 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   3728: 00 00 00 00 00 00 00 00 00 00 00 00 5e 04 07 17   ............^...
+|   3744: 1f 1f 01 81 0b 74 61 62 6c 65 74 31 5f 70 61 72   .....tablet1_par
+|   3760: 65 6e 74 74 31 5f 70 61 72 65 6e 74 04 43 52 45   entt1_parent.CRE
+|   3776: 41 54 45 20 54 41 42 4c 45 20 22 74 31 5f 70 61   ATE TABLE .t1_pa
+|   3792: 72 65 6e 74 22 28 6e 6f 64 65 6e 6f 20 49 4e 54   rent.(nodeno INT
+|   3808: 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59   EGER PRIMARY KEY
+|   3824: 2c 70 61 72 65 6e 74 6e 6f 64 65 29 51 03 06 17   ,parentnode)Q...
+|   3840: 1b 1b 01 7b 74 61 62 6c 65 74 31 5f 6e 6f 64 65   ....tablet1_node
+|   3856: 74 31 5f 6e 6f 64 65 03 43 52 45 41 54 45 20 54   t1_node.CREATE T
+|   3872: 41 42 4c 45 20 22 74 31 5f 6e 6f 64 65 22 28 6e   ABLE .t1_node.(n
+|   3888: 6f 64 65 6e 6f 20 49 4e 54 45 47 45 52 20 50 52   odeno INTEGER PR
+|   3904: 49 4d 41 52 59 20 4b 45 59 2c 64 61 74 61 29 5c   IMARY KEY,data).
+|   3920: 02 07 17 1d 1d 01 81 0b 74 61 62 6c 65 74 31 5f   ........tablet1_
+|   3936: 72 6f 77 69 64 74 31 5f 72 6f 77 69 64 02 43 52   rowidt1_rowid.CR
+|   3952: 45 41 54 45 20 54 41 42 4c 45 20 22 74 31 5f 72   EATE TABLE .t1_r
+|   3968: 6f 77 69 64 22 28 72 6f 77 69 64 20 49 4e 54 45   owid.(rowid INTE
+|   3984: 47 45 72 20 50 52 49 4d 41 52 59 20 4b 45 59 2c   GEr PRIMARY KEY,
+|   4000: 6e 6f 64 65 6e 6f 2c 61 30 2c 61 31 29 51 01 07   nodeno,a0,a1)Q..
+|   4016: 17 11 11 08 81 0f 74 61 62 6c 65 74 31 74 31 43   ......tablet1t1C
+|   4032: 52 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41   REATE VIRTUAL TA
+|   4048: 42 4c 45 20 74 31 20 55 53 49 4e 47 20 72 74 72   BLE t1 USING rtr
+|   4064: 65 65 28 69 64 2c 78 30 2c 78 31 2c 79 30 2c 79   ee(id,x0,x1,y0,y
+|   4080: 31 2c 2b 6c 61 62 65 6c 2c 2b 6f 74 68 65 72 29   1,+label,+other)
+| page 2 offset 4096
+|      0: 0d 00 00 00 0e 0e f7 00 0f e8 0f 00 fb 70 f9 e0   .............p..
+|     16: f9 10 f8 10 f7 00 f5 e0 f4 f0 f3 90 f2 90 f1 80   ................
+|     32: f0 60 ef 00 00 00 00 00 00 00 00 00 00 00 00 00   .`..............
+|   3824: 00 00 00 00 00 00 00 0d 0e 05 00 09 1d 00 74 6f   ..............to
+|   3840: 70 20 68 61 6c 66 10 0d 05 00 09 23 00 62 6f 74   p half.....#.bot
+|   3856: 74 6f 6d 20 68 61 6c 66 0f 0c 05 00 09 21 00 72   tom half.....!.r
+|   3872: 69 67 68 74 20 68 61 6c 66 0e 0b 05 00 09 1f 00   ight half.......
+|   3888: 6c 65 66 74 20 68 61 6c 66 14 0a 05 00 09 2b 00   left half.....+.
+|   3904: 00 03 98 20 49 98 2f 6c 62 05 74 68 69 6e 67 0d   ... I./lb.thing.
+|   3920: 09 05 00 09 1d 00 74 6f 70 20 65 64 67 65 10 08   ......top edge..
+|   3936: 05 00 09 23 00 62 6f 74 74 6f 6d 20 65 64 67 65   ...#.bottom edge
+|   3952: 0f 07 05 00 09 21 00 72 69 67 68 74 20 65 64 67   .....!.right edg
+|   3968: 65 0e 06 05 00 09 1f 00 6c 65 66 74 20 65 64 67   e.......left edg
+|   3984: 65 0b 05 05 00 09 19 00 63 65 6e 74 65 72 17 04   e.......center..
+|   4000: 05 00 09 31 00 75 70 70 65 72 2d 72 69 67 68 74   ...1.upper-right
+|   4016: 20 63 6f 72 6e 65 72 17 03 05 00 09 31 00 6c 6f    corner.....1.lo
+|   4032: 77 65 72 2d 72 69 67 68 74 20 63 6f 72 6e 65 72   wer-right corner
+|   4048: 16 02 05 00 09 2f 00 75 70 70 65 72 2d 6c 65 66   ...../.upper-lef
+|   4064: 74 20 63 6f 72 6e 65 72 16 01 05 00 09 2f 00 6c   t corner...../.l
+|   4080: 6f 77 65 72 2d 6c 65 66 74 20 63 6f 72 6e 65 72   ower-left corner
+| page 3 offset 8192
+|      0: 0d 00 00 00 01 0b 2d 00 0b 2d 00 00 00 00 00 00   ......-..-......
+|   2848: 00 00 00 00 00 00 00 00 00 00 00 00 00 89 50 01   ..............P.
+|   2864: 04 00 93 24 00 00 00 0e 00 00 00 00 00 00 00 01   ...$............
+|   2880: 00 00 00 04 01 20 00 00 00 00 00 04 12 00 00 00   ..... ..........
+|   2896: 00 00 00 00 00 00 00 23 00 00 00 00 41 20 00 00   .......#....A ..
+|   2912: 42 b4 00 00 42 c8 00 00 00 00 00 00 00 00 00 03   B...B...........
+|   2928: 42 b4 00 00 42 c8 00 00 00 00 00 00 41 20 00 00   B...B.......A ..
+|   2944: 00 00 00 00 00 00 00 04 42 b4 00 00 42 c8 00 00   ........B...B...
+|   2960: 42 b4 00 00 42 c8 00 00 00 00 00 00 00 00 00 05   B...B...........
+|   2976: 42 20 00 00 42 70 00 00 42 20 00 00 42 70 00 00   B ..Bp..B ..Bp..
+|   2992: 00 00 00 00 00 00 00 06 00 00 00 00 40 a0 00 00   ............@...
+|   3008: 00 00 00 04 2c 80 00 00 00 00 00 00 00 00 00 74   ....,..........t
+|   3024: 2b e0 00 04 2c 80 00 04 2c 80 00 00 00 00 00 00   +...,...,.......
+|   3040: 00 00 00 80 00 00 00 04 2c 80 00 00 00 00 00 04   ........,.......
+|   3056: 0a 00 00 00 00 00 b0 80 00 00 04 2c 80 00 04 2b   ...........,...+
+|   3072: e0 00 04 2c 80 00 00 00 00 00 00 00 00 00 a0 00   ...,............
+|   3088: 00 00 04 2c 80 00 00 00 00 00 04 2c 80 00 00 00   ...,.......,....
+|   3104: 00 00 00 00 00 00 b0 00 00 00 04 24 80 00 00 00   ...........$....
+|   3120: 00 00 04 2c 80 00 00 00 00 00 00 00 50 00 91 f0   ...,........P...
+|   3136: 06 c6 56 67 42 06 86 16 c6 61 40 a0 50 00 92 b0   ..VgB....a@.P...
+|   3152: 07 46 86 52 07 76 86 f6 c6 52 07 46 86 96 e6 70   .F.R.v...R.F...p
+|   3168: d0 90 50 00 91 d0 07 46 f7 02 06 56 46 76 51 00   ..P....F...VFvQ.
+|   3184: 80 50 00 92 30 06 26 f7 47 46 f6 d2 06 56 46 76   .P..0.&.GF...VFv
+|   3200: 50 f0 70 50 00 92 10 07 26 96 76 87 42 06 56 46   P.pP....&.v.B.VF
+|   3216: 76 50 e0 60 50 00 91 f0 06 c6 56 67 42 06 56 46   vP.`P.....VgB.VF
+|   3232: 76 50 b0 50 50 00 91 90 06 36 56 e7 46 57 21 70   vP.PP....6V.FW!p
+|   3248: 40 50 00 93 10 07 57 07 06 57 22 d7 26 96 76 87   @P....W..W..&.v.
+|   3264: 42 06 36 f7 26 e6 57 21 70 30 50 00 93 10 06 c6   B.6.&.W!p0P.....
+|   3280: f7 76 57 22 d7 26 96 76 87 42 06 36 f7 26 e6 57   .vW..&.v.B.6.&.W
+|   3296: 21 60 20 50 00 92 f0 07 57 07 06 57 22 d6 c6 56   !` P....W..W...V
+|   3312: 60 00 00 c4 24 c0 00 04 2c 80 00 00 00 00 00 04   `...$...,.......
+|   3328: 2c 80 00 00 00 00 00 00 00 00 00 d0 00 00 00 04   ,...............
+|   3344: 2c 80 00 00 00 00 00 04 24 80 00 00 00 00 00 00   ,.......$.......
+|   3360: 00 00 00 e0 00 00 00 04 2c 80 00 04 24 c0 00 04   ........,...$...
+|   3376: 2c 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ,...............
+| page 4 offset 12288
+|      0: 0d 00 00 00 00 10 00 00 00 00 00 00 00 00 00 00   ................
+| end c4.db
+  }]
+  catchsql {
+    UPDATE t1 SET label='x';
+  }
+} {1 {rtree constraint failed: t1.(y0<=y1)}}
+do_test rtreefuzz001-310 {
+  catchsql {
+    SELECT rtreecheck('t1');
+  }
+} {/1 .*corrupt.*/}
+
+do_test rtreefuzz001-400 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 16384 pagesize 4096 filename c7.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 04   .....@  ........
+|     32: 00 00 00 00 01 00 00 00 00 00 00 04 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 00 00 00 04 0e 9c 00 0f ad 0f 4f   ...............O
+|    112: 0e fc 0e 9c 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   3728: 00 00 00 00 00 00 00 00 00 00 00 00 5e 04 07 17   ............^...
+|   3744: 1f 1f 01 81 0b 74 61 62 6c 65 74 31 5f 70 61 72   .....tablet1_par
+|   3760: 65 6e 74 74 31 5f 70 61 72 65 6e 74 04 43 52 45   entt1_parent.CRE
+|   3776: 41 54 45 20 54 41 42 4c 45 20 22 74 31 5f 70 61   ATE TABLE .t1_pa
+|   3792: 72 65 6e 74 22 28 6e 6f 64 65 6e 6f 20 49 4e 54   rent.(nodeno INT
+|   3808: 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59   EGER PRIMARY KEY
+|   3824: 2c 70 61 72 65 6e 74 6e 6f 64 65 29 51 03 06 17   ,parentnode)Q...
+|   3840: 1b 1b 01 7b 74 61 62 6c 65 74 31 5f 6e 6f 64 65   ....tablet1_node
+|   3856: 74 31 5f 6e 6f 64 65 03 43 52 45 41 54 45 20 54   t1_node.CREATE T
+|   3872: 41 42 4c 45 20 22 74 31 5f 6e 6f 64 65 22 28 6e   ABLE .t1_node.(n
+|   3888: 6f 64 65 6e 6f 20 49 4e 54 45 47 45 52 20 50 52   odeno INTEGER PR
+|   3904: 49 4d 41 52 59 20 4b 45 59 2c 64 61 74 61 29 5c   IMARY KEY,data).
+|   3920: 02 07 17 1d 1d 01 81 0b 74 61 62 6c 65 74 31 5f   ........tablet1_
+|   3936: 72 6f 77 69 64 74 31 5f 72 6f 77 69 64 02 43 52   rowidt1_rowid.CR
+|   3952: 45 41 54 45 20 54 41 42 4c 45 20 22 74 31 5f 72   EATE TABLE .t1_r
+|   3968: 6f 77 69 64 22 28 72 6f 77 69 64 20 49 4e 54 45   owid.(rowid INTE
+|   3984: 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c   GER PRIMARY KEY,
+|   4000: 6e 6f 64 65 6e 6f 2c 61 30 2c 61 31 29 51 01 07   nodeno,a0,a1)Q..
+|   4016: 17 11 11 08 81 0f 74 61 62 6c 65 74 31 74 31 43   ......tablet1t1C
+|   4032: 52 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41   REATE VIRTUAL TA
+|   4048: 42 4c 45 20 74 31 20 55 53 49 4e 47 20 72 74 72   BLE t1 USING rtr
+|   4064: 65 65 28 69 64 2c 78 30 2c 78 31 2c 79 30 2c 79   ee(id,x0,x1,y0,y
+|   4080: 31 2c 2b 6c 61 62 65 6c 2c 2b 6f 74 68 65 72 29   1,+label,+other)
+| page 2 offset 4096
+|      0: 0d 00 00 00 0e 0e f7 00 0f e8 0f d0 0f b7 0f 9e   ................
+|     16: 0f 91 0f 81 0f 70 0f 5e 0f 4f 0f 39 0f 29 0f 18   .....p.^.O.9.)..
+|     32: 0f 06 0e f7 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   3824: 00 00 00 00 00 00 00 0d 0e 05 00 09 1d 00 74 6f   ..............to
+|   3840: 70 20 68 61 6c 66 10 0d 05 00 09 23 00 62 6f 74   p half.....#.bot
+|   3856: 74 6f 6d 20 68 61 6c 66 0f 0c 05 00 09 21 00 72   tom half.....!.r
+|   3872: 69 67 68 74 20 68 61 6c 66 0e 0b 05 00 09 1f 00   ight half.......
+|   3888: 6c 65 66 74 20 68 61 6c 66 14 0a 05 00 09 2b 00   left half.....+.
+|   3904: 74 68 65 20 77 68 6f 6c 65 20 74 68 69 6e 67 0d   the whole thing.
+|   3920: 09 05 00 09 1d 00 74 6f 70 20 65 64 67 65 10 08   ......top edge..
+|   3936: 05 00 09 23 00 62 6f 74 74 6f 6d 20 65 64 67 65   ...#.bottom edge
+|   3952: 0f 07 05 00 09 21 00 72 69 67 68 74 20 65 64 67   .....!.right edg
+|   3968: 65 0e 06 05 00 09 1f 00 6c 65 66 74 20 65 64 67   e.......left edg
+|   3984: 65 0b 05 05 00 09 19 00 23 65 6e 74 65 72 17 04   e.......#enter..
+|   4000: 05 00 09 31 00 75 70 70 65 72 2d 72 69 67 68 74   ...1.upper-right
+|   4016: 20 63 6f 72 6e 65 72 17 03 05 00 09 31 00 6c 6f    corner.....1.lo
+|   4032: 77 65 72 2d 72 69 67 68 74 20 63 6f 72 6e 65 72   wer-right corner
+|   4048: 16 02 05 00 09 2f 00 75 70 70 65 72 2d 6c 65 66   ...../.upper-lef
+|   4064: 74 20 63 6f 72 6e 65 72 16 01 05 00 09 2f 00 6c   t corner...../.l
+|   4080: 6f 77 65 72 2d 6c 65 66 74 20 63 6f 72 6e 65 72   ower-left corner
+| page 3 offset 8192
+|      0: 0d 00 00 00 02 0b 2d 00 0b 2d 00 00 00 00 00 00   ......-..-......
+|   2848: 00 00 00 00 00 00 00 00 00 00 00 00 00 89 50 01   ..............P.
+|   2864: 04 00 93 24 00 00 00 00 00 00 00 00 08 00 00 00   ...$............
+|   2880: 00 42 c8 00 00 00 00 00 00 40 a0 00 00 00 00 00   .B.......@......
+|   2896: 00 00 00 00 42 c8 00 00 00 00 00 00 00 00 00 07   ....B...........
+|   2912: 42 be 00 00 42 c8 00 00 00 00 00 00 42 c8 00 00   B...B.......B...
+|   2928: 00 00 00 00 00 00 00 08 00 00 00 00 42 c8 00 00   ............B...
+|   2944: 00 00 00 00 40 a0 00 00 00 00 00 00 00 00 00 09   ....@...........
+|   2960: 00 00 00 00 42 c8 00 00 42 be 00 00 42 c8 00 00   ....B...B...B...
+|   2976: 00 00 00 00 00 00 00 0a 00 00 00 00 42 c8 00 00   ............B...
+|   2992: 00 00 00 00 42 c8 00 00 00 00 00 00 00 00 00 0b   ....B...........
+|   3008: 00 00 00 00 42 48 00 00 00 00 00 04 2c 80 00 00   ....BH......,...
+|   3024: 00 00 00 00 00 00 00 c4 00 00 00 00 00 42 c8 00   .............B..
+|   3040: 00 00 00 00 00 00 00 00 07 42 be 00 00 42 c8 00   .........B...B..
+|   3056: 00 00 00 00 00 42 c8 00 00 00 00 00 00 00 00 00   .....B..........
+|   3072: 08 00 00 00 00 42 c8 00 00 00 00 00 00 40 a0 00   .....B.......@..
+|   3088: 00 00 00 00 00 00 00 00 09 00 00 00 00 42 c8 00   .............B..
+|   3104: 00 42 be 00 00 42 c8 00 00 00 00 00 00 00 00 00   .B...B..........
+|   3120: 0a 00 00 00 00 42 c8 00 00 00 00 00 00 42 c8 00   .....B.......B..
+|   3136: 00 00 00 00 00 00 00 00 0b 00 00 00 00 42 48 00   .............BH.
+|   3152: 00 00 00 00 04 2c 80 00 00 00 00 00 00 00 00 00   .....,..........
+|   3168: c4 24 c0 00 04 2c 80 00 00 00 00 00 04 2c 80 00   .$...,.......,..
+|   3184: 00 00 00 00 00 00 00 00 d0 00 00 00 04 2c 80 00   .............,..
+|   3200: 00 00 00 00 04 24 80 00 00 00 00 00 00 00 00 00   .....$..........
+|   3216: e0 00 00 00 04 2c 80 00 04 24 c0 00 04 2c 00 00   .....,...$...,..
+| page 4 offset 12288
+|      0: 0d 00 00 00 00 10 00 00 00 00 00 00 0e 00 00 00   ................
+|     16: 00 42 c8 00 00 42 4c 00 00 42 c8 00 00 00 00 00   .B...BL..B......
+|     32: 00 00 00 0a 00 00 00 00 42 c8 00 00 00 00 00 00   ........B.......
+|     48: 42 c8 00 00 00 00 00 00 00 00 00 0b 00 00 00 00   B...............
+|     64: 42 48 00 00 00 00 00 04 2c 80 00 00 00 00 00 00   BH......,.......
+|     80: 00 00 00 c4 24 c0 00 04 2c 80 00 00 00 00 00 04   ....$...,.......
+|     96: 2c 80 00 00 00 00 00 00 00 00 00 d0 00 00 00 04   ,...............
+|    112: 2c 80 00 00 00 00 00 04 24 80 00 00 00 00 00 00   ,.......$.......
+|    128: 00 00 00 e0 00 00 00 04 2c 80 00 04 24 c0 00 04   ........,...$...
+|    144: 2c 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ,...............
+| end c7.db
+  }]
+  catchsql {
+    WITH RECURSIVE
+      c1(x) AS (VALUES(0) UNION ALL SELECT x+1 FROM c1 WHERE x<8),
+      c2(y) AS (VALUES(0) UNION ALL SELECT y+1 FROM c2 WHERE y<5)
+    INSERT INTO t1(id, x0,x1,y0,y1,label)
+      SELECT 1000+x+y*100, x, x+1, y, y+1, printf('box-%d,%d',x,y) FROM c1, c2;
+  }
+} {1 {database disk image is malformed}}
+
+do_test rtreefuzz001-500 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 16384 pagesize 4096 filename crash-2e81f5dce5cbd4.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 00   .....@  ........
+|     96: 00 00 00 00 0d 00 00 00 05 0e 6d 00 0f c8 0f 7b   ..........m.....
+|    112: 0f 20 0e cd 0e 6d 00 00 00 00 00 00 00 00 00 00   . ...m..........
+|   3680: 00 00 00 00 00 00 00 00 00 00 00 00 00 5e 05 07   .............^..
+|   3696: 17 1f 1f 01 81 0b 74 61 62 6c 65 74 31 5f 70 61   ......tablet1_pa
+|   3712: 72 65 6e 74 74 31 5f 70 61 72 65 6e 74 05 43 52   rentt1_parent.CR
+|   3728: 45 41 54 45 20 54 41 42 4c 45 20 22 74 31 5f 70   EATE TABLE .t1_p
+|   3744: 61 72 65 6e 74 22 28 6e 6f 64 65 6e 6f 20 49 4e   arent.(nodeno IN
+|   3760: 54 45 47 45 42 20 50 52 49 4d 41 52 59 20 4b 45   TEGEB PRIMARY KE
+|   3776: 59 2c 70 61 72 65 6e 74 6e 6f 64 65 29 51 04 06   Y,parentnode)Q..
+|   3792: 17 1b 1b 01 7b 74 61 62 6c 65 74 31 5f 6e 6f 64   .....tablet1_nod
+|   3808: 65 74 31 5f 6e 6f 64 65 04 43 52 45 41 54 45 20   et1_node.CREATE 
+|   3824: 54 41 42 4c 45 20 22 74 31 5f 6e 6f 64 65 22 28   TABLE .t1_node.(
+|   3840: 6e 6f 64 65 6e 6f 20 49 4e 54 45 47 45 52 20 50   nodeno INTEGER P
+|   3856: 52 49 4d 41 52 59 20 4b 45 59 2c 64 61 74 61 29   RIMARY KEY,data)
+|   3872: 59 03 07 17 1d 1d 01 81 05 74 61 62 6c 65 84 31   Y........table.1
+|   3888: 5f 72 6f 77 69 64 74 31 5f 72 6f 87 69 64 03 43   _rowidt1_ro.id.C
+|   3904: 52 45 41 54 45 20 54 41 42 4c 45 20 22 74 31 5f   REATE TABLE .t1_
+|   3920: 72 6f 77 69 64 22 28 72 6f 77 69 64 20 49 4e 54   rowid.(rowid INT
+|   3936: 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59   EGER PRIMARY KEY
+|   3952: 2c 6e f8 64 65 6e 6f 2c 61 30 29 4b 02 07 17 11   ,n.deno,a0)K....
+|   3968: 11 08 81 03 74 22 62 6c 65 74 31 74 31 43 52 45   ....t.blet1t1CRE
+|   3984: 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42 4c   ATE VIRTUAL TABL
+|   4000: 45 20 74 31 20 55 53 49 4e 47 20 72 74 72 65 65   E t1 USING rtree
+|   4016: 5f 69 33 32 28 69 cc 2c 78 30 2c 78 31 2c 79 30   _i32(i.,x0,x1,y0
+|   4032: 2c 79 31 2c 2b 65 78 29 36 01 06 17 17 17 01 4d   ,y1,+ex)6......M
+|   4048: 74 61 62 6c 65 63 6f 6f 72 64 63 6f 6f 72 64 02   tablecoordcoord.
+|   4064: 43 52 45 41 54 45 20 54 41 42 4c 45 20 63 6f 6f   CREATE TABLE coo
+|   4080: 71 64 28 76 20 49 4e 54 2c 20 77 20 49 4e 54 29   qd(v INT, w INT)
+| page 2 offset 4096
+|   4016: 00 00 00 00 00 00 00 00 00 00 00 05 0a 03 01 01   ................
+|   4032: 0a 02 05 09 03 01 01 09 02 05 08 03 01 01 08 02   ................
+|   4048: 05 07 03 01 01 07 02 05 06 03 11 01 06 02 05 05   ................
+|   4064: 03 01 01 05 02 05 04 03 01 01 04 02 05 03 03 01   ................
+|   4080: 01 03 02 05 02 03 01 01 02 02 04 01 03 09 01 02   ................
+| page 3 offset 8192
+|      0: 0d 0e 4f 00 64 0b 5a 12 0d bb 0d 84 0f eb 0d c6   ..O.d.Z.........
+|     16: 0f d7 0e cc 0f c1 0f b6 0f ab 0f 9f 0f 94 0d 8f   ................
+|     32: 0f 86 0d d1 0f 62 0f 67 0f 5c 0f 51 1f 46 0f 3a   .....b.g...Q.F.:
+|     48: 0f 30 0d 9a 0f 21 0d dc 0f 00 00 00 00 00 00 00   .0...!..........
+|   2896: 00 00 00 00 00 00 00 00 00 00 0a ce 1a 04 00 01   ................
+|   2912: 17 03 31 30 78 31 30 0a 4e 19 03 ff f1 15 03 31   ..10x10.N......1
+|   2928: 30 78 39 09 ce 18 04 00 01 15 03 31 30 78 38 09   0x9........10x8.
+|   2944: ce 17 04 00 01 15 03 31 30 78 37 09 ce 16 04 00   .......10x7.....
+|   2960: 12 15 03 31 30 78 36 09 ce 15 04 00 01 15 03 31   ...10x6........1
+|   2976: 30 78 35 09 ce 14 04 00 01 15 0d a1 30 78 34 09   0x5.........0x4.
+|   2992: ce 13 04 00 01 15 03 31 30 78 33 09 ce 12 04 00   .......10x3.....
+|   3008: 01 15 03 31 40 78 32 09 ce 11 04 00 01 15 03 31   ...1@x2........1
+|   3024: 30 78 31 09 c6 32 04 00 01 15 03 39 78 31 30 08   0x1..2.....9x10.
+|   3040: c6 31 04 00 01 13 03 39 78 39 08 c6 30 04 00 01   .1.....9x9..0...
+|   3056: 13 03 39 78 38 08 c6 2f 04 00 01 14 03 39 78 37   ..9x8../.....9x7
+|   3072: 08 c6 2e 04 00 01 13 03 39 78 36 08 c6 2d 04 00   ........9x6..-..
+|   3088: 01 13 03 39 78 34 f8 c6 2c 04 00 01 13 03 39 78   ...9x4..,.....9x
+|   3104: 34 08 c6 2b 04 00 60 13 03 39 79 13 08 c6 2a 04   4..+..`..9y...*.
+|   3120: 00 11 13 03 39 78 32 08 c6 29 04 00 01 13 03 39   ....9x2..).....9
+|   3136: 78 31 09 be 4a 04 00 01 15 03 38 78 31 30 08 be   x1..J.....8x10..
+|   3152: 49 04 00 01 13 03 38 78 39 08 be 48 04 00 01 13   I.....8x9..H....
+|   3168: 03 38 77 98 08 be 47 04 00 01 14 23 38 78 37 08   .8w...G....#8x7.
+|   3184: be 46 04 00 01 13 03 38 78 36 08 be 45 04 00 01   .F.....8x6..E...
+|   3200: 13 03 38 78 35 08 be 44 04 00 01 13 03 38 78 34   ..8x5..D.....8x4
+|   3216: 08 be 43 04 00 01 13 03 38 78 33 08 be 42 04 00   ..C.....8x3..B..
+|   3232: 01 13 03 38 78 32 08 be 41 04 00 01 13 03 38 78   ...8x2..A.....8x
+|   3248: 31 09 b6 62 04 00 01 15 03 37 68 31 30 08 b6 61   1..b.....7h10..a
+|   3264: 04 00 01 13 03 37 79 39 08 b6 60 04 00 01 12 f3   .....7y9..`.....
+|   3280: 37 78 38 08 b6 5e 04 00 01 13 03 37 78 37 08 b6   7x8..^.....7x7..
+|   3296: 5e 04 00 01 13 03 37 78 36 08 b6 5d 04 00 01 13   ^.....7x6..]....
+|   3312: 03 37 78 35 08 b6 5c 04 00 00 13 03 37 78 34 08   .7x5........7x4.
+|   3328: b6 5b 04 00 01 13 03 37 78 33 08 b6 5a 04 00 01   .[.....7x3..Z...
+|   3344: 13 03 37 78 32 08 b6 59 04 00 01 13 03 37 78 31   ..7x2..Y.....7x1
+|   3360: 09 ae 7a 04 00 01 15 03 36 78 31 30 08 ae 79 04   ..z.....6x10..y.
+|   3376: 00 01 e2 03 36 78 39 08 ae 78 04 00 01 13 03 36   ....6x9..x.....6
+|   3392: 78 38 08 ae 77 04 00 01 13 03 36 78 37 08 ae 76   x8..w.....6x7..v
+|   3408: 04 00 01 13 03 36 78 36 08 ae 85 04 00 01 13 03   .....6x6........
+|   3424: 36 78 35 08 ae 73 f4 00 01 13 03 36 78 34 08 ae   6x5..s.....6x4..
+|   3440: 73 04 00 01 13 03 36 78 33 08 ae 72 04 00 01 13   s.....6x3..r....
+|   3456: 03 36 78 32 08 87 6a 04 00 01 13 02 3d e8 32 08   .6x2..j.....=.2.
+|   3472: 8f 52 04 00 01 13 02 32 78 32 08 97 3b 04 00 01   .R.....2x2..;...
+|   3488: 13 02 33 78 32 08 9f 22 04 00 01 13 02 34 78 32   ..3x2........4x2
+|   3504: 08 a7 0a 04 00 01 13 02 35 78 32 08 87 69 04 00   ........5x2..i..
+|   3520: 01 13 02 31 78 31 08 87 6c 04 00 01 13 02 31 78   ...1x1..l.....1x
+|   3536: 34 08 8f 54 04 00 01 13 02 32 78 34 08 97 3c 04   4..T.....2x4..<.
+|   3552: 00 01 12 f2 33 78 34 08 9f 24 04 00 01 13 02 34   ....3x4..$.....4
+|   3568: 78 34 08 a7 0c 04 00 01 13 02 35 78 34 0e 6c 00   x4........5x4.l.
+|   3584: 08 ae 71 04 00 01 13 03 36 78 31 09 a7 12 04 00   ..q.....6x1.....
+|   3600: 01 15 02 35 78 31 30 08 a7 11 04 00 01 13 02 35   ...5x10........5
+|   3616: 78 39 08 a7 10 04 00 01 13 02 35 78 38 08 a7 0f   x9........5x8...
+|   3632: 04 00 01 14 02 35 78 37 08 a7 0e 04 00 01 13 02   .....5x7........
+|   3648: 35 78 36 08 a7 0d 04 00 01 13 02 35 78 35 0e 0e   5x6........5x5..
+|   3664: b3 00 08 00 01 00 03 08 a7 0b 04 00 01 13 02 35   ...............5
+|   3680: 78 33 0e d1 00 08 a7 09 04 00 01 13 02 35 78 31   x3...........5x1
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+| end crash-2e81f5dce5cbd4.db}]
+  execsql { PRAGMA writable_schema = 1;}
+  catchsql {UPDATE t1 SET ex= ex ISNULL}
+} {0 {}}
+
+do_test rtreefuzz001-600 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 20480 pagesize 4096 filename crash-7b37d80f000235.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 05   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 10 06 00 00 00 04   ................
+|     96: 00 00 00 00 0d 00 00 00 05 0e 49 00 0f 99 0f 40   ..........I....@
+|    112: 0e da 0e 8f 0e 49 00 00 00 00 00 00 00 00 00 00   .....I..........
+|   3648: 00 00 00 00 00 00 00 00 00 44 05 06 17 15 15 08   .........D......
+|   3664: 6f 74 61 62 6c 65 67 65 6f 31 67 65 6f 31 43 52   otablegeo1geo1CR
+|   3680: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   3696: 4c 45 20 67 65 6f 31 20 55 53 49 4e 47 20 67 65   LE geo1 USING ge
+|   3712: 6f 70 6f 6c 79 28 74 79 70 65 2c 63 6c 72 29 49   opoly(type,clr)I
+|   3728: 04 06 17 1f 1f 01 63 74 61 62 6c 65 71 75 65 72   ......ctablequer
+|   3744: 79 70 6f 6c 79 71 75 65 72 79 70 6f 6c 79 05 43   ypolyquerypoly.C
+|   3760: 52 45 41 54 45 20 54 41 42 4c 45 20 71 75 65 72   REATE TABLE quer
+|   3776: 79 70 6f 6c 79 28 70 6f 6c 79 20 4a 53 4f 4e 2c   ypoly(poly JSON,
+|   3792: 20 63 6c 72 20 54 45 58 54 29 64 03 07 17 23 23    clr TEXT)d...##
+|   3808: 01 81 0f 74 61 62 6c 65 67 65 6f 31 5f 70 61 72   ...tablegeo1_par
+|   3824: 65 6e 74 67 65 6f 31 5f 70 61 72 65 6e 74 04 43   entgeo1_parent.C
+|   3840: 52 45 41 54 45 20 54 41 42 4c 45 20 22 67 65 6f   REATE TABLE .geo
+|   3856: 31 5f 70 61 72 65 6e 74 22 28 6e 6f 64 65 6e 6f   1_parent.(nodeno
+|   3872: 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59    INTEGER PRIMARY
+|   3888: 20 4b 45 59 2c 70 61 72 65 6e 74 6e 6f 64 85 29    KEY,parentnod.)
+|   3904: 57 02 06 17 1f 1f 01 7f 74 61 62 6c 65 67 65 6f   W.......tablegeo
+|   3920: 31 5f 6e 6f 64 65 67 65 6f 31 5f 6e 6f 64 65 03   1_nodegeo1_node.
+|   3936: 43 52 45 41 54 45 20 54 41 42 4c 45 20 22 67 65   CREATE TABLE .ge
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+|   3984: 4b 45 59 2c 64 61 74 61 29 65 01 07 17 21 21 01   KEY,data)e...!!.
+|   4000: 81 15 74 61 62 6c 65 67 65 6f 31 5f 72 6f 77 69   ..tablegeo1_rowi
+|   4016: 64 67 65 6f 31 5f 72 6f 77 69 64 02 43 52 45 41   dgeo1_rowid.CREA
+|   4032: 54 45 20 54 41 42 4c 45 20 22 67 65 6f 31 5f 72   TE TABLE .geo1_r
+|   4048: 6f 77 69 64 22 28 72 6f 77 69 64 20 49 4e 54 45   owid.(rowid INTE
+|   4064: 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c   GER PRIMARY KEY,
+|   4080: 6e 6f 64 65 6e 6f 2c 61 30 2c 61 31 2c 61 32 29   nodeno,a0,a1,a2)
+| page 2 offset 4096
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+| page 3 offset 8192
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+|   3136: 00 00 00 00 00 00 00 00 54 43 a2 00 00 43 b6 00   ........TC...C..
+|   3152: 00 44 24 00 00 44 25 40 00 00 00 00 00 00 00 00   .D$..D%@........
+|   3168: 54 43 a2 00 00 43 b6 00 00 44 24 00 00 44 25 40   TC...C...D$..D%@
+|   3184: 00 00 00 00 00 00 00 00 54 43 a2 00 00 43 b6 00   ........TC...C..
+|   3200: 00 44 24 00 00 44 25 40 00 00 00 00 00 00 00 00   .D$..D%@........
+|   3216: 54 43 a2 00 00 43 b6 00 00 44 24 00 00 44 25 40   TC...C...D$..D%@
+|   3232: 00 00 00 00 00 00 00 00 54 43 a2 00 00 43 b6 00   ........TC...C..
+|   3248: 00 44 24 00 00 44 25 40 00 00 00 00 00 00 00 00   .D$..D%@........
+|   3264: 54 43 a2 00 00 43 b6 00 00 44 24 00 00 44 25 40   TC...C...D$..D%@
+|   3280: 00 00 00 00 00 00 00 00 54 43 a2 00 00 43 b6 00   ........TC...C..
+|   3296: 00 44 24 00 00 44 25 40 00 00 00 00 00 00 00 00   .D$..D%@........
+|   3312: 54 43 a2 00 00 43 b6 00 00 44 24 00 00 44 25 40   TC...C...D$..D%@
+|   3328: 00 00 00 00 00 00 00 00 54 43 a2 00 00 43 b6 00   ........TC...C..
+|   3344: 00 44 24 00 00 44 25 40 00 00 00 00 00 00 00 01   .D$..D%@........
+|   3360: 36 44 53 e0 00 44 56 bb 64 43 71 34 bc 43 7d 00   6DS..DV.dCq4.C..
+|   3376: 00 00 00 00 00 00 00 01 36 44 53 e0 00 44 56 bb   ........6DS..DV.
+|   3392: 64 43 71 34 bc 43 7d 00 00 00 00 00 00 00 00 01   dCq4.C..........
+|   3408: 36 44 53 e0 00 44 56 bb 64 43 71 34 bc 43 7d 00   6DS..DV.dCq4.C..
+|   3424: 00 00 00 00 00 00 00 01 36 44 53 e0 00 44 56 bb   ........6DS..DV.
+|   3440: 64 43 71 34 bc 43 7d 00 00 00 00 00 00 00 00 01   dCq4.C..........
+|   3456: 36 44 53 e0 00 44 56 bb 64 43 71 34 bc 43 7d 00   6DS..DV.dCq4.C..
+|   3472: 00 00 00 00 00 00 00 01 36 44 53 e0 00 44 56 bb   ........6DS..DV.
+|   3488: 64 43 71 34 bc 43 7d 00 00 00 00 00 00 00 00 01   dCq4.C..........
+|   3504: 36 44 53 e0 00 44 56 bb 64 43 71 34 bc 43 7d 00   6DS..DV.dCq4.C..
+|   3520: 00 00 00 00 00 00 00 01 36 44 53 e0 00 44 56 bb   ........6DS..DV.
+|   3536: 64 43 71 34 bc 43 7d 00 00 00 00 00 00 00 00 01   dCq4.C..........
+|   3552: 36 44 53 e0 00 44 56 bb 64 43 71 34 bc 43 7d 00   6DS..DV.dCq4.C..
+|   3568: 00 00 00 00 00 00 00 01 36 44 53 e0 00 44 56 bb   ........6DS..DV.
+|   3584: 64 43 71 34 bc 43 7d 00 00 00 00 00 00 00 00 01   dCq4.C..........
+|   3600: 36 44 53 e0 00 44 56 bb 64 43 71 34 bc 43 7d 00   6DS..DV.dCq4.C..
+|   3616: 00 00 00 00 00 00 00 01 36 44 53 e0 00 44 56 bb   ........6DS..DV.
+|   3632: 64 43 71 34 bc 43 7d 00 00 00 00 00 00 00 00 01   dCq4.C..........
+|   3648: 36 44 53 e0 00 44 56 bb 64 43 71 34 bc 43 7d 00   6DS..DV.dCq4.C..
+|   3664: 00 00 00 00 00 00 00 01 36 44 53 e0 00 44 56 bb   ........6DS..DV.
+|   3680: 64 43 71 34 bc 43 7d 00 00 00 00 00 00 00 00 01   dCq4.C..........
+|   3696: 36 44 53 e0 00 44 56 bb 64 43 71 34 bc 43 7d 00   6DS..DV.dCq4.C..
+| page 4 offset 12288
+|      0: 0d 00 00 00 00 10 00 00 00 00 00 00 00 00 00 00   ................
+| page 5 offset 16384
+|      0: 0d 00 00 00 01 0f 8f 00 00 00 00 00 00 00 00 00   ................
+|   3968: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 6f   ...............o
+|   3984: 01 04 81 57 19 5b 5b 33 30 30 2c 33 30 30 5d 2c   ...W.[[300,300],
+|   4000: 5b 34 30 30 2c 33 35 30 5d 2c 5b 35 30 30 2c 32   [400,350],[500,2
+|   4016: 35 30 5d 2c 5b 34 38 30 2c 35 30 30 5d 2c 5b 34   50],[480,500],[4
+|   4032: 30 30 2c 34 38 30 5d 2c 5c 33 30 30 2c 35 35 30   00,480],.300,550
+|   4048: 5d 2c 5b 32 38 30 2c 34 35 30 5d 2c 5b 33 32 30   ],[280,450],[320
+|   4064: 2c 34 30 30 5d 2c 5b 32 38 30 2c 33 35 30 5d 2c   ,400],[280,350],
+|   4080: 5b 33 30 30 2c 33 30 00 00 00 00 00 00 00 00 00   [300,30.........
+| end crash-7b37d80f000235.db
+}]} {}
+
+ifcapable geopoly {
+
+do_catchsql_test rtreefuzz001-601 {
+  SAVEPOINT one;
+  UPDATE geo1 SET clr=CASE WHEN rowid IN ( SELECT geo1.rowid FROM geo1, querypoly ) THEN 'e' ELSE 'blue' END;
+} {1 {database disk image is malformed}}
+
+do_catchsql_test rtreefuzz001-602 {
+  SELECT geopoly_svg(_shape, printf('j',geo1.clr)) 
+    FROM geo1, querypoly WHERE geopoly_overlap(_shape, poly);
+} {1 {database disk image is malformed}}
+
+} ;# ifcapable geopoly
+
+finish_test
diff --git a/ext/rtree/sqlite3rtree.h b/ext/rtree/sqlite3rtree.h
new file mode 100644
index 0000000000000000000000000000000000000000..9976c2d28c3bbffdf06c329a9e51f2b0a945a1e1
--- /dev/null
+++ b/ext/rtree/sqlite3rtree.h
@@ -0,0 +1,117 @@
+/*
+** 2010 August 30
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+*/
+
+#ifndef _SQLITE3RTREE_H_
+#define _SQLITE3RTREE_H_
+
+#include <sqlite3.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct sqlite3_rtree_geometry sqlite3_rtree_geometry;
+typedef struct sqlite3_rtree_query_info sqlite3_rtree_query_info;
+
+/* The double-precision datatype used by RTree depends on the
+** SQLITE_RTREE_INT_ONLY compile-time option.
+*/
+#ifdef SQLITE_RTREE_INT_ONLY
+  typedef sqlite3_int64 sqlite3_rtree_dbl;
+#else
+  typedef double sqlite3_rtree_dbl;
+#endif
+
+/*
+** Register a geometry callback named zGeom that can be used as part of an
+** R-Tree geometry query as follows:
+**
+**   SELECT ... FROM <rtree> WHERE <rtree col> MATCH $zGeom(... params ...)
+*/
+int sqlite3_rtree_geometry_callback(
+  sqlite3 *db,
+  const char *zGeom,
+  int (*xGeom)(sqlite3_rtree_geometry*, int, sqlite3_rtree_dbl*,int*),
+  void *pContext
+);
+
+
+/*
+** A pointer to a structure of the following type is passed as the first
+** argument to callbacks registered using rtree_geometry_callback().
+*/
+struct sqlite3_rtree_geometry {
+  void *pContext;                 /* Copy of pContext passed to s_r_g_c() */
+  int nParam;                     /* Size of array aParam[] */
+  sqlite3_rtree_dbl *aParam;      /* Parameters passed to SQL geom function */
+  void *pUser;                    /* Callback implementation user data */
+  void (*xDelUser)(void *);       /* Called by SQLite to clean up pUser */
+};
+
+/*
+** Register a 2nd-generation geometry callback named zScore that can be 
+** used as part of an R-Tree geometry query as follows:
+**
+**   SELECT ... FROM <rtree> WHERE <rtree col> MATCH $zQueryFunc(... params ...)
+*/
+int sqlite3_rtree_query_callback(
+  sqlite3 *db,
+  const char *zQueryFunc,
+  int (*xQueryFunc)(sqlite3_rtree_query_info*),
+  void *pContext,
+  void (*xDestructor)(void*)
+);
+
+
+/*
+** A pointer to a structure of the following type is passed as the 
+** argument to scored geometry callback registered using
+** sqlite3_rtree_query_callback().
+**
+** Note that the first 5 fields of this structure are identical to
+** sqlite3_rtree_geometry.  This structure is a subclass of
+** sqlite3_rtree_geometry.
+*/
+struct sqlite3_rtree_query_info {
+  void *pContext;                   /* pContext from when function registered */
+  int nParam;                       /* Number of function parameters */
+  sqlite3_rtree_dbl *aParam;        /* value of function parameters */
+  void *pUser;                      /* callback can use this, if desired */
+  void (*xDelUser)(void*);          /* function to free pUser */
+  sqlite3_rtree_dbl *aCoord;        /* Coordinates of node or entry to check */
+  unsigned int *anQueue;            /* Number of pending entries in the queue */
+  int nCoord;                       /* Number of coordinates */
+  int iLevel;                       /* Level of current node or entry */
+  int mxLevel;                      /* The largest iLevel value in the tree */
+  sqlite3_int64 iRowid;             /* Rowid for current entry */
+  sqlite3_rtree_dbl rParentScore;   /* Score of parent node */
+  int eParentWithin;                /* Visibility of parent node */
+  int eWithin;                      /* OUT: Visibility */
+  sqlite3_rtree_dbl rScore;         /* OUT: Write the score here */
+  /* The following fields are only available in 3.8.11 and later */
+  sqlite3_value **apSqlParam;       /* Original SQL values of parameters */
+};
+
+/*
+** Allowed values for sqlite3_rtree_query.eWithin and .eParentWithin.
+*/
+#define NOT_WITHIN       0   /* Object completely outside of query region */
+#define PARTLY_WITHIN    1   /* Object partially overlaps query region */
+#define FULLY_WITHIN     2   /* Object fully contained within query region */
+
+
+#ifdef __cplusplus
+}  /* end of the 'extern "C"' block */
+#endif
+
+#endif  /* ifndef _SQLITE3RTREE_H_ */
diff --git a/ext/rtree/test_rtreedoc.c b/ext/rtree/test_rtreedoc.c
new file mode 100644
index 0000000000000000000000000000000000000000..0c042d05a99d8b098b5e0833852a6a08c05d164d
--- /dev/null
+++ b/ext/rtree/test_rtreedoc.c
@@ -0,0 +1,344 @@
+/*
+** 2010 August 28
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** Code for testing all sorts of SQLite interfaces. This code
+** is not included in the SQLite library. 
+*/
+
+#include "sqlite3.h"
+#include "tclsqlite.h"
+
+/* Solely for the UNUSED_PARAMETER() macro. */
+#include "sqliteInt.h"
+
+#ifdef SQLITE_ENABLE_RTREE
+
+typedef struct BoxGeomCtx BoxGeomCtx;
+struct BoxGeomCtx {
+  Tcl_Interp *interp;
+  Tcl_Obj *pScript;
+};
+
+typedef struct BoxQueryCtx BoxQueryCtx;
+struct BoxQueryCtx {
+  Tcl_Interp *interp;
+  Tcl_Obj *pScript;
+};
+
+static void testDelUser(void *pCtx){
+  BoxGeomCtx *p = (BoxGeomCtx*)pCtx;
+  Tcl_EvalObjEx(p->interp, p->pScript, 0);
+  Tcl_DecrRefCount(p->pScript);
+  sqlite3_free(p);
+}
+
+static int invokeTclGeomCb(
+  const char *zName, 
+  sqlite3_rtree_geometry *p, 
+  int nCoord,
+  sqlite3_rtree_dbl *aCoord
+){
+  int rc = SQLITE_OK;
+  if( p->pContext ){
+    char aPtr[64];
+    BoxGeomCtx *pCtx = (BoxGeomCtx*)p->pContext;
+    Tcl_Interp *interp = pCtx->interp;
+    Tcl_Obj *pScript = 0;
+    Tcl_Obj *pParam = 0;
+    Tcl_Obj *pCoord = 0;
+    int ii;
+    Tcl_Obj *pRes;
+
+
+    pScript = Tcl_DuplicateObj(pCtx->pScript);
+    Tcl_IncrRefCount(pScript);
+    Tcl_ListObjAppendElement(interp, pScript, Tcl_NewStringObj(zName,-1));
+
+    sqlite3_snprintf(sizeof(aPtr)-1, aPtr, "%p", (void*)p->pContext);
+    Tcl_ListObjAppendElement(interp, pScript, Tcl_NewStringObj(aPtr,-1));
+
+    pParam = Tcl_NewObj();
+    for(ii=0; ii<p->nParam; ii++){
+      Tcl_ListObjAppendElement(
+          interp, pParam, Tcl_NewDoubleObj(p->aParam[ii])
+      );
+    }
+    Tcl_ListObjAppendElement(interp, pScript, pParam);
+
+    pCoord = Tcl_NewObj();
+    for(ii=0; ii<nCoord; ii++){
+      Tcl_ListObjAppendElement(interp, pCoord, Tcl_NewDoubleObj(aCoord[ii]));
+    }
+    Tcl_ListObjAppendElement(interp, pScript, pCoord);
+
+    sqlite3_snprintf(sizeof(aPtr)-1, aPtr, "%p", (void*)p);
+    Tcl_ListObjAppendElement(interp, pScript, Tcl_NewStringObj(aPtr,-1));
+
+    rc = Tcl_EvalObjEx(interp, pScript, 0);
+    if( rc!=TCL_OK ){
+      rc = SQLITE_ERROR;
+    }else{
+      Tcl_Size nObj = 0;
+      Tcl_Obj **aObj = 0;
+
+      pRes = Tcl_GetObjResult(interp);
+      if( Tcl_ListObjGetElements(interp, pRes, &nObj, &aObj) ) return TCL_ERROR;
+      if( nObj>0 ){
+        const char *zCmd = Tcl_GetString(aObj[0]);
+        if( 0==sqlite3_stricmp(zCmd, "zero") ){
+          p->aParam[0] = 0.0;
+          p->nParam = 1;
+        }
+        else if( 0==sqlite3_stricmp(zCmd, "user") ){
+          if( p->pUser || p->xDelUser ){
+            rc = SQLITE_ERROR;
+          }else{
+            BoxGeomCtx *pBGCtx = sqlite3_malloc(sizeof(BoxGeomCtx));
+            if( pBGCtx==0 ){
+              rc = SQLITE_NOMEM;
+            }else{
+              pBGCtx->interp = interp;
+              pBGCtx->pScript = Tcl_DuplicateObj(pRes);
+              Tcl_IncrRefCount(pBGCtx->pScript);
+              Tcl_ListObjReplace(interp, pBGCtx->pScript, 0, 1, 0, 0);
+              p->pUser = (void*)pBGCtx;
+              p->xDelUser = testDelUser;
+            }
+          }
+        }
+        else if( 0==sqlite3_stricmp(zCmd, "user_is_zero") ){
+          if( p->pUser || p->xDelUser ) rc = SQLITE_ERROR;
+        }
+      }
+    }
+  }
+  return rc;
+}
+
+/*
+# EVIDENCE-OF: R-00693-36727 The legacy xGeom callback is invoked with
+# four arguments.
+
+# EVIDENCE-OF: R-50437-53270 The first argument is a pointer to an
+# sqlite3_rtree_geometry structure which provides information about how
+# the SQL function was invoked.
+
+# EVIDENCE-OF: R-00090-24248 The third argument, aCoord[], is an array
+# of nCoord coordinates that defines a bounding box to be tested.
+
+# EVIDENCE-OF: R-28207-40885 The last argument is a pointer into which
+# the callback result should be written.
+
+*/
+static int box_geom(
+  sqlite3_rtree_geometry *p,      /* R-50437-53270 */
+  int nCoord,                     /* R-02424-24769 */
+  sqlite3_rtree_dbl *aCoord,      /* R-00090-24248 */
+  int *pRes                       /* R-28207-40885 */
+){
+  int ii;
+
+  if( p->nParam!=nCoord ){
+    invokeTclGeomCb("box", p, nCoord, aCoord);
+    return SQLITE_ERROR;
+  }
+  if( invokeTclGeomCb("box", p, nCoord, aCoord) ) return SQLITE_ERROR;
+
+  for(ii=0; ii<nCoord; ii+=2){
+    if( aCoord[ii]>p->aParam[ii+1] || aCoord[ii+1]<p->aParam[ii] ){
+      /* R-28207-40885 */
+      *pRes = 0;
+      return SQLITE_OK;
+    }
+  }
+
+  /* R-28207-40885 */
+  *pRes = 1;
+
+  return SQLITE_OK;
+}
+
+static int SQLITE_TCLAPI register_box_geom(
+  void * clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  extern int getDbPointer(Tcl_Interp*, const char*, sqlite3**);
+  extern const char *sqlite3ErrName(int);
+  sqlite3 *db;
+  BoxGeomCtx *pCtx;
+  char aPtr[64];
+
+  if( objc!=3 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "DB SCRIPT");
+    return TCL_ERROR;
+  }
+  if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
+
+  pCtx = (BoxGeomCtx*)ckalloc(sizeof(BoxGeomCtx*));
+  pCtx->interp = interp;
+  pCtx->pScript = Tcl_DuplicateObj(objv[2]);
+  Tcl_IncrRefCount(pCtx->pScript);
+
+  sqlite3_rtree_geometry_callback(db, "box", box_geom, (void*)pCtx);
+
+  sqlite3_snprintf(64, aPtr, "%p", (void*)pCtx);
+  Tcl_SetObjResult(interp, Tcl_NewStringObj(aPtr, -1));
+  return TCL_OK;
+}
+
+static int box_query(sqlite3_rtree_query_info *pInfo){
+  const char *azParentWithin[] = {"not", "partly", "fully", 0};
+  BoxQueryCtx *pCtx = (BoxQueryCtx*)pInfo->pContext;
+  Tcl_Interp *interp = pCtx->interp;
+  Tcl_Obj *pEval;
+  Tcl_Obj *pArg;
+  Tcl_Obj *pTmp = 0;
+  int rc;
+  int ii;
+
+  pEval = Tcl_DuplicateObj(pCtx->pScript);
+  Tcl_IncrRefCount(pEval);
+  pArg = Tcl_NewObj();
+  Tcl_IncrRefCount(pArg);
+
+  /* aParam[] */
+  pTmp = Tcl_NewObj();
+  Tcl_IncrRefCount(pTmp);
+  for(ii=0; ii<pInfo->nParam; ii++){
+    Tcl_Obj *p = Tcl_NewDoubleObj(pInfo->aParam[ii]);
+    Tcl_ListObjAppendElement(interp, pTmp, p);
+  }
+  Tcl_ListObjAppendElement(interp, pArg, Tcl_NewStringObj("aParam", -1));
+  Tcl_ListObjAppendElement(interp, pArg, pTmp);
+  Tcl_DecrRefCount(pTmp);
+
+  /* aCoord[] */
+  pTmp = Tcl_NewObj();
+  Tcl_IncrRefCount(pTmp);
+  for(ii=0; ii<pInfo->nCoord; ii++){
+    Tcl_Obj *p = Tcl_NewDoubleObj(pInfo->aCoord[ii]);
+    Tcl_ListObjAppendElement(interp, pTmp, p);
+  }
+  Tcl_ListObjAppendElement(interp, pArg, Tcl_NewStringObj("aCoord", -1));
+  Tcl_ListObjAppendElement(interp, pArg, pTmp);
+  Tcl_DecrRefCount(pTmp);
+
+  /* anQueue[] */
+  pTmp = Tcl_NewObj();
+  Tcl_IncrRefCount(pTmp);
+  for(ii=0; ii<=pInfo->mxLevel; ii++){
+    Tcl_Obj *p = Tcl_NewIntObj((int)pInfo->anQueue[ii]);
+    Tcl_ListObjAppendElement(interp, pTmp, p);
+  }
+  Tcl_ListObjAppendElement(interp, pArg, Tcl_NewStringObj("anQueue", -1));
+  Tcl_ListObjAppendElement(interp, pArg, pTmp);
+  Tcl_DecrRefCount(pTmp);
+  
+  /* iLevel */
+  Tcl_ListObjAppendElement(interp, pArg, Tcl_NewStringObj("iLevel", -1));
+  Tcl_ListObjAppendElement(interp, pArg, Tcl_NewIntObj(pInfo->iLevel));
+
+  /* mxLevel */
+  Tcl_ListObjAppendElement(interp, pArg, Tcl_NewStringObj("mxLevel", -1));
+  Tcl_ListObjAppendElement(interp, pArg, Tcl_NewIntObj(pInfo->mxLevel));
+
+  /* iRowid */
+  Tcl_ListObjAppendElement(interp, pArg, Tcl_NewStringObj("iRowid", -1));
+  Tcl_ListObjAppendElement(interp, pArg, Tcl_NewWideIntObj(pInfo->iRowid));
+
+  /* rParentScore */
+  Tcl_ListObjAppendElement(interp, pArg, Tcl_NewStringObj("rParentScore", -1));
+  Tcl_ListObjAppendElement(interp, pArg, Tcl_NewDoubleObj(pInfo->rParentScore));
+
+  /* eParentWithin */
+  assert( pInfo->eParentWithin==0 
+       || pInfo->eParentWithin==1 
+       || pInfo->eParentWithin==2 
+  );
+  Tcl_ListObjAppendElement(interp, pArg, Tcl_NewStringObj("eParentWithin", -1));
+  Tcl_ListObjAppendElement(interp, pArg, 
+      Tcl_NewStringObj(azParentWithin[pInfo->eParentWithin], -1)
+  );
+
+  Tcl_ListObjAppendElement(interp, pEval, pArg);
+  rc = Tcl_EvalObjEx(interp, pEval, 0) ? SQLITE_ERROR : SQLITE_OK;
+
+  if( rc==SQLITE_OK ){
+    double rScore = 0.0;
+    Tcl_Size nObj = 0;
+    int eP = 0;
+    Tcl_Obj **aObj = 0;
+    Tcl_Obj *pRes = Tcl_GetObjResult(interp);
+
+    if( Tcl_ListObjGetElements(interp, pRes, &nObj, &aObj) 
+     || nObj!=2 
+     || Tcl_GetDoubleFromObj(interp, aObj[1], &rScore)
+     || Tcl_GetIndexFromObj(interp, aObj[0], azParentWithin, "value", 0, &eP)
+    ){
+      rc = SQLITE_ERROR;
+    }else{
+      pInfo->rScore = rScore;
+      pInfo->eParentWithin = eP;
+    }
+  }
+
+  Tcl_DecrRefCount(pArg);
+  Tcl_DecrRefCount(pEval);
+  return rc;
+}
+
+static void box_query_destroy(void *p){
+  BoxQueryCtx *pCtx = (BoxQueryCtx*)p;
+  Tcl_DecrRefCount(pCtx->pScript);
+  ckfree((char*)pCtx);
+}
+
+static int SQLITE_TCLAPI register_box_query(
+  void * clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  extern int getDbPointer(Tcl_Interp*, const char*, sqlite3**);
+  extern const char *sqlite3ErrName(int);
+  sqlite3 *db;
+  BoxQueryCtx *pCtx;
+
+  if( objc!=3 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "DB SCRIPT");
+    return TCL_ERROR;
+  }
+  if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
+
+  pCtx = (BoxQueryCtx*)ckalloc(sizeof(BoxQueryCtx));
+  pCtx->interp = interp;
+  pCtx->pScript = Tcl_DuplicateObj(objv[2]);
+  Tcl_IncrRefCount(pCtx->pScript);
+
+  sqlite3_rtree_query_callback(
+      db, "qbox", box_query, (void*)pCtx, box_query_destroy
+  );
+
+  Tcl_ResetResult(interp);
+  return TCL_OK;
+}
+#endif /* SQLITE_ENABLE_RTREE */
+
+
+int Sqlitetestrtreedoc_Init(Tcl_Interp *interp){
+#ifdef SQLITE_ENABLE_RTREE
+  Tcl_CreateObjCommand(interp, "register_box_geom", register_box_geom, 0, 0);
+  Tcl_CreateObjCommand(interp, "register_box_query", register_box_query, 0, 0);
+#endif /* SQLITE_ENABLE_RTREE */
+  return TCL_OK;
+}
diff --git a/ext/rtree/tkt3363.test b/ext/rtree/tkt3363.test
new file mode 100644
index 0000000000000000000000000000000000000000..db05ed527a125cbda255261cc79f1be8acb1c779
--- /dev/null
+++ b/ext/rtree/tkt3363.test
@@ -0,0 +1,50 @@
+# 2008 Sep 08
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# The focus of this file is testing that ticket #3363 is fixed.
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+}
+source [file join [file dirname [info script]] rtree_util.tcl]
+source $testdir/tester.tcl
+
+ifcapable !rtree {
+  finish_test
+  return
+}
+
+do_test tkt3363.1.1 {
+  execsql { CREATE VIRTUAL TABLE t1 USING rtree(ii, x1, x2, y1, y2) }
+} {}
+
+do_test tkt3363.1.2 {
+  for {set ii 1} {$ii < 50} {incr ii} {
+    set x 1000000
+    set y [expr 4000000 + $ii*10]
+    execsql { INSERT INTO t1 VALUES($ii, $x, $x, $y, $y) }
+  }
+} {}
+
+do_test tkt3363.1.3 {
+  execsql { 
+    SELECT count(*) FROM t1 WHERE +y2>4000425.0;
+  }
+} {7}
+
+do_test tkt3363.1.4 {
+  execsql { 
+    SELECT count(*) FROM t1 WHERE y2>4000425.0;
+  }
+} {7}
+
+finish_test
diff --git a/ext/rtree/util/randomshape.tcl b/ext/rtree/util/randomshape.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..98725bc9dc270a41d0ef36f2cc0500c1d1adbe35
--- /dev/null
+++ b/ext/rtree/util/randomshape.tcl
@@ -0,0 +1,87 @@
+#!/usr/bin/tclsh
+#
+# This script generates a cluster of random polygons that are useful
+# for testing the geopoly extension.
+#
+# Usage:
+#
+#    tclsh randomshape.tcl | tee x.sql | sqlite3 >x.html
+#
+# The output files are x.sql and x.html.  Run the above multiple times
+# until an interesting "x.html" file is found, then use the "x.sql" inputs
+# to construct test cases.
+#
+proc randomenclosure {cx cy p1 p2 p3 p4} {
+  set r 0
+  set pi 3.145926
+  set pi2 [expr {$pi*2}]
+  set x0 [expr {$cx + rand()*$p3 + $p4}]
+  set ans "\[\[$x0,$cy\]"
+  while {1} {
+    set r [expr {$r+$p1+$p2*rand()}]
+    if {$r>=$pi2} break
+    set m [expr {rand()*$p3 + $p4}]
+    set x [expr {$cx+$m*cos($r)}]
+    set y [expr {$cy+$m*sin($r)}]
+    append ans ",\[$x,$y\]"
+  }
+  append ans ",\[$x0,$cy\]\]"
+  return $ans
+}
+proc randomshape1 {} {
+  set cx [expr {100+int(rand()*800)}]
+  set cy [expr {100+int(rand()*600)}]
+  set p1 [expr {rand()*0.1}]
+  set p2 [expr {rand()*0.5+0.5}]
+  set p3 [expr {rand()*100+25}]
+  set p4 [expr {rand()*25}]
+  return [randomenclosure $cx $cy $p1 $p2 $p3 $p4]
+}
+proc randomshape1_sm {} {
+  set cx [expr {100+int(rand()*800)}]
+  set cy [expr {100+int(rand()*600)}]
+  set p1 [expr {rand()*0.1}]
+  set p2 [expr {rand()*0.5+0.5}]
+  set p3 [expr {rand()*10+25}]
+  set p4 [expr {rand()*5}]
+  return [randomenclosure $cx $cy $p1 $p2 $p3 $p4]
+}
+proc randomshape2 {} {
+  set cx [expr {400+int(rand()*200)}]
+  set cy [expr {300+int(rand()*200)}]
+  set p1 [expr {rand()*0.05}]
+  set p2 [expr {rand()*0.5+0.5}]
+  set p3 [expr {rand()*50+200}]
+  set p4 [expr {rand()*50+100}]
+  return [randomenclosure $cx $cy $p1 $p2 $p3 $p4]
+}
+proc randomcolor {} {
+  set n [expr {int(rand()*5)}]
+  return [lindex {red orange green blue purple} $n]
+}
+
+puts {.print '<html>'}
+puts {.print '<svg width="1000" height="800" style="border:1px solid black">'}
+puts {CREATE TABLE t1(poly,clr);}
+puts {CREATE TABLE t2(poly,clr);}
+for {set i 0} {$i<30} {incr i} {
+  puts "INSERT INTO t1(rowid,poly,clr)"
+  puts " VALUES($i,'[randomshape1]','[randomcolor]');"
+}
+for {set i 30} {$i<80} {incr i} {
+  puts "INSERT INTO t1(rowid,poly,clr)"
+  puts " VALUES($i,'[randomshape1_sm]','[randomcolor]');"
+}
+for {set i 100} {$i<105} {incr i} {
+  puts "INSERT INTO t2(rowid,poly,clr)"
+  puts " VALUES($i,'[randomshape2]','[randomcolor]');"
+}
+
+puts {DELETE FROM t1 WHERE geopoly_json(poly) IS NULL;}
+puts {SELECT geopoly_svg(poly,
+   printf('style="fill:none;stroke:%s;stroke-width:1;"',clr))
+  FROM t1;}
+puts {SELECT geopoly_svg(poly,
+   printf('style="fill:none;stroke:%s;stroke-width:2;"',clr))
+  FROM t2;}
+puts {.print '<svg>'}
diff --git a/ext/rtree/viewrtree.tcl b/ext/rtree/viewrtree.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..794677f5a371c772fdbc00c0134c4e931a6ae488
--- /dev/null
+++ b/ext/rtree/viewrtree.tcl
@@ -0,0 +1,188 @@
+
+load ./libsqlite3.dylib
+#package require sqlite3
+source [file join [file dirname $argv0] rtree_util.tcl]
+
+wm title . "SQLite r-tree viewer"
+
+if {[llength $argv]!=1} {
+  puts stderr "Usage: $argv0 <database-file>"
+  puts stderr ""
+  exit
+}
+sqlite3 db [lindex $argv 0]
+
+canvas .c -background white -width 400 -height 300 -highlightthickness 0
+
+button .b -text "Parent Node" -command {
+  set sql "SELECT parentnode FROM $::O(zTab)_parent WHERE nodeno = $::O(iNode)"
+  set ::O(iNode) [db one $sql]
+  if {$::O(iNode) eq ""} {set ::O(iNode) 1}
+  view_node
+}
+
+set O(iNode) 1
+set O(zTab) ""
+set O(listbox_captions)  [list]
+set O(listbox_itemmap)   [list]
+set O(listbox_highlight) -1
+
+listbox   .l -listvariable ::O(listbox_captions) -yscrollcommand {.ls set}
+scrollbar .ls -command {.l yview}
+label     .status -font courier -anchor w
+label     .title -anchor w -text "Node 1:" -background white -borderwidth 0
+
+
+set rtree_tables [list]
+db eval {
+  SELECT name 
+  FROM sqlite_master 
+  WHERE type='table' AND sql LIKE '%virtual%table%using%rtree%'
+} {
+  set nCol [expr [llength [db eval "pragma table_info($name)"]]/6]
+  if {$nCol != 5} {
+    puts stderr "Not viewing $name - is not 2-dimensional"
+  } else {
+    lappend rtree_tables [list Table $name]
+  }
+}
+if {$rtree_tables eq ""} {
+  puts stderr "Cannot find an r-tree table in database [lindex $argv 0]"
+  puts stderr ""
+  exit
+}
+eval tk_optionMenu .select option_var $rtree_tables
+trace add variable option_var write set_option_var
+proc set_option_var {args} {
+  set ::O(zTab) [lindex $::option_var 1]
+  set ::O(iNode) 1
+  view_node
+}
+set ::O(zTab) [lindex $::rtree_tables 0 1]
+
+bind .l <1> {listbox_click [.l nearest %y]}
+bind .l <Motion> {listbox_mouseover [.l nearest %y]}
+bind .l <Leave>  {listbox_mouseover -1}
+
+proc listbox_click {sel} {
+  if {$sel ne ""} {
+    set ::O(iNode) [lindex $::O(listbox_captions) $sel 1]
+    view_node
+  }
+}
+proc listbox_mouseover {i} {
+  set oldid [lindex $::O(listbox_itemmap) $::O(listbox_highlight)]
+  .c itemconfigure $oldid -fill ""
+
+  .l selection clear 0 end
+  .status configure -text ""
+  if {$i>=0} {
+    set id [lindex $::O(listbox_itemmap) $i]
+    .c itemconfigure $id -fill grey
+    .c lower $id
+    set ::O(listbox_highlight) $i
+    .l selection set $i
+    .status configure -text [cell_report db $::O(zTab) $::O(iNode) $i]
+  }
+}
+
+grid configure .select  -row 0 -column 0 -columnspan 2 -sticky nsew
+grid configure .b       -row 1 -column 0 -columnspan 2 -sticky nsew
+grid configure .l       -row 2 -column 0               -sticky nsew
+grid configure .status  -row 3 -column 0 -columnspan 3 -sticky nsew
+
+grid configure .title   -row 0 -column 2               -sticky nsew
+grid configure .c       -row 1 -column 2 -rowspan 2    -sticky nsew
+grid configure .ls      -row 2 -column 1               -sticky nsew
+
+grid columnconfigure . 2 -weight 1
+grid rowconfigure    . 2 -weight 1
+
+proc node_bbox {data} {
+  set xmin 0
+  set xmax 0
+  set ymin 0
+  set ymax 0
+  foreach {rowid xmin xmax ymin ymax} [lindex $data 0] break
+  foreach cell [lrange $data 1 end] {
+    foreach {rowid x1 x2 y1 y2} $cell break
+    if {$x1 < $xmin} {set xmin $x1}
+    if {$x2 > $xmax} {set xmax $x2}
+    if {$y1 < $ymin} {set ymin $y1}
+    if {$y2 > $ymax} {set ymax $y2}
+  }
+  list $xmin $xmax $ymin $ymax
+}
+
+proc view_node {} {
+  set iNode $::O(iNode)
+  set zTab $::O(zTab)
+
+  set data [rtree_node db $zTab $iNode 12]
+  set depth [rtree_nodedepth db $zTab $iNode]
+
+  .c delete all
+  set ::O(listbox_captions) [list]
+  set ::O(listbox_itemmap) [list]
+  set $::O(listbox_highlight) -1
+
+  .b configure -state normal
+  if {$iNode == 1} {.b configure -state disabled}
+  .title configure -text "Node $iNode: [cell_report db $zTab $iNode -1]"
+
+  foreach {xmin xmax ymin ymax} [node_bbox $data] break
+  set total_area 0.0
+
+  set xscale [expr {double([winfo width .c]-20)/($xmax-$xmin)}]
+  set yscale [expr {double([winfo height .c]-20)/($ymax-$ymin)}]
+
+  set xoff [expr {10.0 - $xmin*$xscale}]
+  set yoff [expr {10.0 - $ymin*$yscale}]
+
+  foreach cell $data {
+    foreach {rowid x1 x2 y1 y2} $cell break
+    set total_area [expr {$total_area + ($x2-$x1)*($y2-$y1)}]
+    set x1 [expr {$x1*$xscale + $xoff}]
+    set x2 [expr {$x2*$xscale + $xoff}]
+    set y1 [expr {$y1*$yscale + $yoff}]
+    set y2 [expr {$y2*$yscale + $yoff}]
+
+    set id [.c create rectangle $x1 $y1 $x2 $y2]
+    if {$depth>0} {
+      lappend ::O(listbox_captions) "Node $rowid"
+      lappend ::O(listbox_itemmap) $id
+    }
+  }
+}
+
+proc cell_report {db zTab iParent iCell} {
+  set data [rtree_node db $zTab $iParent 12]
+  set cell [lindex $data $iCell]
+
+  foreach {xmin xmax ymin ymax} [node_bbox $data] break
+  set total_area [expr ($xmax-$xmin)*($ymax-$ymin)]
+
+  if {$cell eq ""} {
+    set cell_area 0.0
+    foreach cell $data {
+      foreach {rowid x1 x2 y1 y2} $cell break
+      set cell_area [expr $cell_area+($x2-$x1)*($y2-$y1)]
+    }
+    set cell_area [expr $cell_area/[llength $data]]
+    set zReport [format "Size = %.1f x %.1f    Average child area = %.1f%%" \
+      [expr $xmax-$xmin] [expr $ymax-$ymin] [expr 100.0*$cell_area/$total_area]\
+    ]
+    append zReport "   Sub-tree height: [rtree_nodedepth db $zTab $iParent]"
+  } else {
+    foreach {rowid x1 x2 y1 y2} $cell break
+    set cell_area  [expr ($x2-$x1)*($y2-$y1)]
+    set zReport [format "Size = %.1f x %.1f    Area = %.1f%%" \
+      [expr $x2-$x1] [expr $y2-$y1] [expr 100.0*$cell_area/$total_area]
+    ]
+  }
+
+  return $zReport
+}
+
+view_node
+bind .c <Configure> view_node
diff --git a/ext/rtree/visual01.txt b/ext/rtree/visual01.txt
new file mode 100644
index 0000000000000000000000000000000000000000..281d610842f03ecc31c99704101e88bd86f5a92a
--- /dev/null
+++ b/ext/rtree/visual01.txt
@@ -0,0 +1,602 @@
+#!sqlite3
+#
+# This is a visual test case for the geopoly virtual table.
+#
+# Run this script in the sqlite3 CLI, and redirect output into an
+# HTML file.  This display the HTML in a webbrowser.
+#
+
+/* Test data.
+** Lots of shapes to be displayed over a 1000x800 canvas.
+*/
+CREATE TEMP TABLE basis(name TEXT, jshape TEXT);
+INSERT INTO basis(name,jshape) VALUES
+  ('box-20','[[0,0],[20,0],[20,20],[0,20],[0,0]]'),
+  ('house-70','[[0,0],[50,0],[50,50],[25,70],[0,50],[0,0]]'),
+  ('line-40','[[0,0],[40,0],[40,5],[0,5],[0,0]]'),
+  ('line-80','[[0,0],[80,0],[80,7],[0,7],[0,0]]'),
+  ('arrow-50','[[0,0],[25,25],[0,50],[15,25],[0,0]]'),
+  ('triangle-30','[[0,0],[30,0],[15,30],[0,0]]'),
+  ('angle-30','[[0,0],[30,0],[30,30],[26,30],[26,4],[0,4],[0,0]]'),
+  ('star-10','[[1,0],[5,2],[9,0],[7,4],[10,8],[7,7],[5,10],[3,7],[0,8],[3,4],[1,0]]');
+CREATE TEMP TABLE xform(A,B,C,D,clr);
+INSERT INTO xform(A,B,clr) VALUES
+  (1,0,'black'),
+  (0.707,0.707,'blue'),
+  (0.5,0.866,'red'),
+  (-0.866,0.5,'green');
+CREATE TEMP TABLE xyoff(id1,id2,xoff,yoff,PRIMARY KEY(id1,id2,xoff,yoff))
+  WITHOUT ROWID;
+INSERT INTO xyoff VALUES(1,1,811,659);
+INSERT INTO xyoff VALUES(1,1,235,550);
+INSERT INTO xyoff VALUES(1,1,481,620);
+INSERT INTO xyoff VALUES(1,1,106,494);
+INSERT INTO xyoff VALUES(1,1,487,106);
+INSERT INTO xyoff VALUES(1,1,817,595);
+INSERT INTO xyoff VALUES(1,1,240,504);
+INSERT INTO xyoff VALUES(1,1,806,457);
+INSERT INTO xyoff VALUES(1,1,608,107);
+INSERT INTO xyoff VALUES(1,1,768,662);
+INSERT INTO xyoff VALUES(1,2,808,528);
+INSERT INTO xyoff VALUES(1,2,768,528);
+INSERT INTO xyoff VALUES(1,2,771,171);
+INSERT INTO xyoff VALUES(1,2,275,671);
+INSERT INTO xyoff VALUES(1,2,326,336);
+INSERT INTO xyoff VALUES(1,2,690,688);
+INSERT INTO xyoff VALUES(1,2,597,239);
+INSERT INTO xyoff VALUES(1,2,317,528);
+INSERT INTO xyoff VALUES(1,2,366,223);
+INSERT INTO xyoff VALUES(1,2,621,154);
+INSERT INTO xyoff VALUES(1,3,829,469);
+INSERT INTO xyoff VALUES(1,3,794,322);
+INSERT INTO xyoff VALUES(1,3,358,387);
+INSERT INTO xyoff VALUES(1,3,184,444);
+INSERT INTO xyoff VALUES(1,3,729,500);
+INSERT INTO xyoff VALUES(1,3,333,523);
+INSERT INTO xyoff VALUES(1,3,117,595);
+INSERT INTO xyoff VALUES(1,3,496,201);
+INSERT INTO xyoff VALUES(1,3,818,601);
+INSERT INTO xyoff VALUES(1,3,541,343);
+INSERT INTO xyoff VALUES(1,4,603,248);
+INSERT INTO xyoff VALUES(1,4,761,649);
+INSERT INTO xyoff VALUES(1,4,611,181);
+INSERT INTO xyoff VALUES(1,4,607,233);
+INSERT INTO xyoff VALUES(1,4,860,206);
+INSERT INTO xyoff VALUES(1,4,310,231);
+INSERT INTO xyoff VALUES(1,4,727,539);
+INSERT INTO xyoff VALUES(1,4,660,661);
+INSERT INTO xyoff VALUES(1,4,403,133);
+INSERT INTO xyoff VALUES(1,4,619,331);
+INSERT INTO xyoff VALUES(2,1,712,578);
+INSERT INTO xyoff VALUES(2,1,567,313);
+INSERT INTO xyoff VALUES(2,1,231,423);
+INSERT INTO xyoff VALUES(2,1,490,175);
+INSERT INTO xyoff VALUES(2,1,898,353);
+INSERT INTO xyoff VALUES(2,1,589,483);
+INSERT INTO xyoff VALUES(2,1,188,462);
+INSERT INTO xyoff VALUES(2,1,720,106);
+INSERT INTO xyoff VALUES(2,1,793,380);
+INSERT INTO xyoff VALUES(2,1,154,396);
+INSERT INTO xyoff VALUES(2,2,324,218);
+INSERT INTO xyoff VALUES(2,2,120,327);
+INSERT INTO xyoff VALUES(2,2,655,133);
+INSERT INTO xyoff VALUES(2,2,516,603);
+INSERT INTO xyoff VALUES(2,2,529,572);
+INSERT INTO xyoff VALUES(2,2,481,212);
+INSERT INTO xyoff VALUES(2,2,802,107);
+INSERT INTO xyoff VALUES(2,2,234,509);
+INSERT INTO xyoff VALUES(2,2,501,269);
+INSERT INTO xyoff VALUES(2,2,349,553);
+INSERT INTO xyoff VALUES(2,3,495,685);
+INSERT INTO xyoff VALUES(2,3,897,372);
+INSERT INTO xyoff VALUES(2,3,350,681);
+INSERT INTO xyoff VALUES(2,3,832,257);
+INSERT INTO xyoff VALUES(2,3,778,149);
+INSERT INTO xyoff VALUES(2,3,683,426);
+INSERT INTO xyoff VALUES(2,3,693,217);
+INSERT INTO xyoff VALUES(2,3,746,317);
+INSERT INTO xyoff VALUES(2,3,805,369);
+INSERT INTO xyoff VALUES(2,3,336,585);
+INSERT INTO xyoff VALUES(2,4,890,255);
+INSERT INTO xyoff VALUES(2,4,556,565);
+INSERT INTO xyoff VALUES(2,4,865,555);
+INSERT INTO xyoff VALUES(2,4,230,293);
+INSERT INTO xyoff VALUES(2,4,247,251);
+INSERT INTO xyoff VALUES(2,4,730,563);
+INSERT INTO xyoff VALUES(2,4,318,282);
+INSERT INTO xyoff VALUES(2,4,220,431);
+INSERT INTO xyoff VALUES(2,4,828,336);
+INSERT INTO xyoff VALUES(2,4,278,525);
+INSERT INTO xyoff VALUES(3,1,324,656);
+INSERT INTO xyoff VALUES(3,1,625,362);
+INSERT INTO xyoff VALUES(3,1,155,570);
+INSERT INTO xyoff VALUES(3,1,267,433);
+INSERT INTO xyoff VALUES(3,1,599,121);
+INSERT INTO xyoff VALUES(3,1,873,498);
+INSERT INTO xyoff VALUES(3,1,789,520);
+INSERT INTO xyoff VALUES(3,1,656,378);
+INSERT INTO xyoff VALUES(3,1,831,601);
+INSERT INTO xyoff VALUES(3,1,256,471);
+INSERT INTO xyoff VALUES(3,2,332,258);
+INSERT INTO xyoff VALUES(3,2,305,463);
+INSERT INTO xyoff VALUES(3,2,796,341);
+INSERT INTO xyoff VALUES(3,2,830,229);
+INSERT INTO xyoff VALUES(3,2,413,271);
+INSERT INTO xyoff VALUES(3,2,269,140);
+INSERT INTO xyoff VALUES(3,2,628,441);
+INSERT INTO xyoff VALUES(3,2,747,643);
+INSERT INTO xyoff VALUES(3,2,584,435);
+INSERT INTO xyoff VALUES(3,2,784,314);
+INSERT INTO xyoff VALUES(3,3,722,233);
+INSERT INTO xyoff VALUES(3,3,815,421);
+INSERT INTO xyoff VALUES(3,3,401,267);
+INSERT INTO xyoff VALUES(3,3,451,650);
+INSERT INTO xyoff VALUES(3,3,329,485);
+INSERT INTO xyoff VALUES(3,3,878,370);
+INSERT INTO xyoff VALUES(3,3,162,616);
+INSERT INTO xyoff VALUES(3,3,844,183);
+INSERT INTO xyoff VALUES(3,3,161,216);
+INSERT INTO xyoff VALUES(3,3,176,676);
+INSERT INTO xyoff VALUES(3,4,780,128);
+INSERT INTO xyoff VALUES(3,4,566,121);
+INSERT INTO xyoff VALUES(3,4,646,120);
+INSERT INTO xyoff VALUES(3,4,223,557);
+INSERT INTO xyoff VALUES(3,4,251,117);
+INSERT INTO xyoff VALUES(3,4,139,209);
+INSERT INTO xyoff VALUES(3,4,813,597);
+INSERT INTO xyoff VALUES(3,4,454,538);
+INSERT INTO xyoff VALUES(3,4,616,198);
+INSERT INTO xyoff VALUES(3,4,210,159);
+INSERT INTO xyoff VALUES(4,1,208,415);
+INSERT INTO xyoff VALUES(4,1,326,665);
+INSERT INTO xyoff VALUES(4,1,612,133);
+INSERT INTO xyoff VALUES(4,1,537,513);
+INSERT INTO xyoff VALUES(4,1,638,438);
+INSERT INTO xyoff VALUES(4,1,808,269);
+INSERT INTO xyoff VALUES(4,1,552,121);
+INSERT INTO xyoff VALUES(4,1,100,189);
+INSERT INTO xyoff VALUES(4,1,643,664);
+INSERT INTO xyoff VALUES(4,1,726,378);
+INSERT INTO xyoff VALUES(4,2,478,409);
+INSERT INTO xyoff VALUES(4,2,497,507);
+INSERT INTO xyoff VALUES(4,2,233,148);
+INSERT INTO xyoff VALUES(4,2,587,237);
+INSERT INTO xyoff VALUES(4,2,604,166);
+INSERT INTO xyoff VALUES(4,2,165,455);
+INSERT INTO xyoff VALUES(4,2,320,258);
+INSERT INTO xyoff VALUES(4,2,353,496);
+INSERT INTO xyoff VALUES(4,2,347,495);
+INSERT INTO xyoff VALUES(4,2,166,622);
+INSERT INTO xyoff VALUES(4,3,461,332);
+INSERT INTO xyoff VALUES(4,3,685,278);
+INSERT INTO xyoff VALUES(4,3,427,594);
+INSERT INTO xyoff VALUES(4,3,467,346);
+INSERT INTO xyoff VALUES(4,3,125,548);
+INSERT INTO xyoff VALUES(4,3,597,680);
+INSERT INTO xyoff VALUES(4,3,820,445);
+INSERT INTO xyoff VALUES(4,3,144,330);
+INSERT INTO xyoff VALUES(4,3,557,434);
+INSERT INTO xyoff VALUES(4,3,254,315);
+INSERT INTO xyoff VALUES(4,4,157,339);
+INSERT INTO xyoff VALUES(4,4,249,220);
+INSERT INTO xyoff VALUES(4,4,391,323);
+INSERT INTO xyoff VALUES(4,4,589,429);
+INSERT INTO xyoff VALUES(4,4,859,592);
+INSERT INTO xyoff VALUES(4,4,337,680);
+INSERT INTO xyoff VALUES(4,4,410,288);
+INSERT INTO xyoff VALUES(4,4,636,596);
+INSERT INTO xyoff VALUES(4,4,734,433);
+INSERT INTO xyoff VALUES(4,4,559,549);
+INSERT INTO xyoff VALUES(5,1,549,607);
+INSERT INTO xyoff VALUES(5,1,584,498);
+INSERT INTO xyoff VALUES(5,1,699,116);
+INSERT INTO xyoff VALUES(5,1,525,524);
+INSERT INTO xyoff VALUES(5,1,304,667);
+INSERT INTO xyoff VALUES(5,1,302,232);
+INSERT INTO xyoff VALUES(5,1,403,149);
+INSERT INTO xyoff VALUES(5,1,824,403);
+INSERT INTO xyoff VALUES(5,1,697,203);
+INSERT INTO xyoff VALUES(5,1,293,689);
+INSERT INTO xyoff VALUES(5,2,199,275);
+INSERT INTO xyoff VALUES(5,2,395,393);
+INSERT INTO xyoff VALUES(5,2,657,642);
+INSERT INTO xyoff VALUES(5,2,200,655);
+INSERT INTO xyoff VALUES(5,2,882,234);
+INSERT INTO xyoff VALUES(5,2,483,565);
+INSERT INTO xyoff VALUES(5,2,755,640);
+INSERT INTO xyoff VALUES(5,2,810,305);
+INSERT INTO xyoff VALUES(5,2,731,655);
+INSERT INTO xyoff VALUES(5,2,466,690);
+INSERT INTO xyoff VALUES(5,3,563,584);
+INSERT INTO xyoff VALUES(5,3,491,117);
+INSERT INTO xyoff VALUES(5,3,779,292);
+INSERT INTO xyoff VALUES(5,3,375,637);
+INSERT INTO xyoff VALUES(5,3,253,553);
+INSERT INTO xyoff VALUES(5,3,797,514);
+INSERT INTO xyoff VALUES(5,3,229,480);
+INSERT INTO xyoff VALUES(5,3,257,194);
+INSERT INTO xyoff VALUES(5,3,449,555);
+INSERT INTO xyoff VALUES(5,3,849,630);
+INSERT INTO xyoff VALUES(5,4,329,286);
+INSERT INTO xyoff VALUES(5,4,640,197);
+INSERT INTO xyoff VALUES(5,4,104,150);
+INSERT INTO xyoff VALUES(5,4,438,272);
+INSERT INTO xyoff VALUES(5,4,773,226);
+INSERT INTO xyoff VALUES(5,4,441,650);
+INSERT INTO xyoff VALUES(5,4,242,340);
+INSERT INTO xyoff VALUES(5,4,301,435);
+INSERT INTO xyoff VALUES(5,4,171,397);
+INSERT INTO xyoff VALUES(5,4,541,619);
+INSERT INTO xyoff VALUES(6,1,651,301);
+INSERT INTO xyoff VALUES(6,1,637,137);
+INSERT INTO xyoff VALUES(6,1,765,643);
+INSERT INTO xyoff VALUES(6,1,173,296);
+INSERT INTO xyoff VALUES(6,1,263,192);
+INSERT INTO xyoff VALUES(6,1,791,302);
+INSERT INTO xyoff VALUES(6,1,860,601);
+INSERT INTO xyoff VALUES(6,1,780,445);
+INSERT INTO xyoff VALUES(6,1,462,214);
+INSERT INTO xyoff VALUES(6,1,802,207);
+INSERT INTO xyoff VALUES(6,2,811,685);
+INSERT INTO xyoff VALUES(6,2,533,531);
+INSERT INTO xyoff VALUES(6,2,390,614);
+INSERT INTO xyoff VALUES(6,2,260,580);
+INSERT INTO xyoff VALUES(6,2,116,377);
+INSERT INTO xyoff VALUES(6,2,860,458);
+INSERT INTO xyoff VALUES(6,2,438,590);
+INSERT INTO xyoff VALUES(6,2,604,562);
+INSERT INTO xyoff VALUES(6,2,241,242);
+INSERT INTO xyoff VALUES(6,2,667,298);
+INSERT INTO xyoff VALUES(6,3,787,698);
+INSERT INTO xyoff VALUES(6,3,868,521);
+INSERT INTO xyoff VALUES(6,3,412,587);
+INSERT INTO xyoff VALUES(6,3,640,131);
+INSERT INTO xyoff VALUES(6,3,748,410);
+INSERT INTO xyoff VALUES(6,3,257,244);
+INSERT INTO xyoff VALUES(6,3,411,195);
+INSERT INTO xyoff VALUES(6,3,464,356);
+INSERT INTO xyoff VALUES(6,3,157,339);
+INSERT INTO xyoff VALUES(6,3,434,505);
+INSERT INTO xyoff VALUES(6,4,480,671);
+INSERT INTO xyoff VALUES(6,4,519,228);
+INSERT INTO xyoff VALUES(6,4,404,513);
+INSERT INTO xyoff VALUES(6,4,120,538);
+INSERT INTO xyoff VALUES(6,4,403,663);
+INSERT INTO xyoff VALUES(6,4,477,677);
+INSERT INTO xyoff VALUES(6,4,690,154);
+INSERT INTO xyoff VALUES(6,4,606,498);
+INSERT INTO xyoff VALUES(6,4,430,665);
+INSERT INTO xyoff VALUES(6,4,499,273);
+INSERT INTO xyoff VALUES(7,1,118,526);
+INSERT INTO xyoff VALUES(7,1,817,522);
+INSERT INTO xyoff VALUES(7,1,388,638);
+INSERT INTO xyoff VALUES(7,1,181,265);
+INSERT INTO xyoff VALUES(7,1,442,332);
+INSERT INTO xyoff VALUES(7,1,475,282);
+INSERT INTO xyoff VALUES(7,1,722,633);
+INSERT INTO xyoff VALUES(7,1,104,394);
+INSERT INTO xyoff VALUES(7,1,631,262);
+INSERT INTO xyoff VALUES(7,1,372,392);
+INSERT INTO xyoff VALUES(7,2,600,413);
+INSERT INTO xyoff VALUES(7,2,386,223);
+INSERT INTO xyoff VALUES(7,2,839,174);
+INSERT INTO xyoff VALUES(7,2,293,410);
+INSERT INTO xyoff VALUES(7,2,281,391);
+INSERT INTO xyoff VALUES(7,2,859,387);
+INSERT INTO xyoff VALUES(7,2,478,347);
+INSERT INTO xyoff VALUES(7,2,646,690);
+INSERT INTO xyoff VALUES(7,2,713,234);
+INSERT INTO xyoff VALUES(7,2,199,588);
+INSERT INTO xyoff VALUES(7,3,389,256);
+INSERT INTO xyoff VALUES(7,3,349,542);
+INSERT INTO xyoff VALUES(7,3,363,345);
+INSERT INTO xyoff VALUES(7,3,751,302);
+INSERT INTO xyoff VALUES(7,3,423,386);
+INSERT INTO xyoff VALUES(7,3,267,444);
+INSERT INTO xyoff VALUES(7,3,243,182);
+INSERT INTO xyoff VALUES(7,3,453,658);
+INSERT INTO xyoff VALUES(7,3,126,345);
+INSERT INTO xyoff VALUES(7,3,120,472);
+INSERT INTO xyoff VALUES(7,4,359,654);
+INSERT INTO xyoff VALUES(7,4,339,516);
+INSERT INTO xyoff VALUES(7,4,710,452);
+INSERT INTO xyoff VALUES(7,4,810,560);
+INSERT INTO xyoff VALUES(7,4,644,692);
+INSERT INTO xyoff VALUES(7,4,826,327);
+INSERT INTO xyoff VALUES(7,4,465,462);
+INSERT INTO xyoff VALUES(7,4,310,456);
+INSERT INTO xyoff VALUES(7,4,577,613);
+INSERT INTO xyoff VALUES(7,4,502,555);
+INSERT INTO xyoff VALUES(8,1,601,620);
+INSERT INTO xyoff VALUES(8,1,372,683);
+INSERT INTO xyoff VALUES(8,1,758,399);
+INSERT INTO xyoff VALUES(8,1,485,552);
+INSERT INTO xyoff VALUES(8,1,159,563);
+INSERT INTO xyoff VALUES(8,1,536,303);
+INSERT INTO xyoff VALUES(8,1,122,263);
+INSERT INTO xyoff VALUES(8,1,836,435);
+INSERT INTO xyoff VALUES(8,1,544,146);
+INSERT INTO xyoff VALUES(8,1,270,277);
+INSERT INTO xyoff VALUES(8,2,849,281);
+INSERT INTO xyoff VALUES(8,2,563,242);
+INSERT INTO xyoff VALUES(8,2,704,463);
+INSERT INTO xyoff VALUES(8,2,102,165);
+INSERT INTO xyoff VALUES(8,2,797,524);
+INSERT INTO xyoff VALUES(8,2,612,426);
+INSERT INTO xyoff VALUES(8,2,345,372);
+INSERT INTO xyoff VALUES(8,2,820,376);
+INSERT INTO xyoff VALUES(8,2,789,156);
+INSERT INTO xyoff VALUES(8,2,321,466);
+INSERT INTO xyoff VALUES(8,3,150,332);
+INSERT INTO xyoff VALUES(8,3,136,152);
+INSERT INTO xyoff VALUES(8,3,468,528);
+INSERT INTO xyoff VALUES(8,3,409,192);
+INSERT INTO xyoff VALUES(8,3,820,216);
+INSERT INTO xyoff VALUES(8,3,847,249);
+INSERT INTO xyoff VALUES(8,3,801,267);
+INSERT INTO xyoff VALUES(8,3,181,670);
+INSERT INTO xyoff VALUES(8,3,398,563);
+INSERT INTO xyoff VALUES(8,3,439,576);
+INSERT INTO xyoff VALUES(8,4,123,309);
+INSERT INTO xyoff VALUES(8,4,190,496);
+INSERT INTO xyoff VALUES(8,4,571,531);
+INSERT INTO xyoff VALUES(8,4,290,255);
+INSERT INTO xyoff VALUES(8,4,244,412);
+INSERT INTO xyoff VALUES(8,4,264,596);
+INSERT INTO xyoff VALUES(8,4,253,420);
+INSERT INTO xyoff VALUES(8,4,847,536);
+INSERT INTO xyoff VALUES(8,4,120,288);
+INSERT INTO xyoff VALUES(8,4,331,639);
+
+/* Create the geopoly object from test data above */
+CREATE VIRTUAL TABLE geo1 USING geopoly(type,clr);
+INSERT INTO geo1(_shape,type,clr)
+  SELECT geopoly_xform(jshape,A,B,-B,A,xoff,yoff), basis.name, xform.clr
+    FROM basis, xform, xyoff
+   WHERE xyoff.id1=basis.rowid AND xyoff.id2=xform.rowid;
+
+
+/* Query polygon */
+CREATE TEMP TABLE querypoly(poly JSON, clr TEXT);
+INSERT INTO querypoly(clr, poly) VALUES
+  ('orange', '[[300,300],[400,350],[500,250],[480,500],[400,480],[300,550],[280,450],[320,400],[280,350],[300,300]]');
+
+/* Generate the HTML */
+.print '<html>'
+.print '<h1>Everything</h1>'
+.print '<svg width="1000" height="800" style="border:1px solid black">'
+SELECT geopoly_svg(_shape, 
+         printf('style="fill:none;stroke:%s;stroke-width:1"',clr)
+       )
+  FROM geo1;
+SELECT geopoly_svg(poly, 
+         printf('style="fill:%s;fill-opacity:0.5;"',clr)
+       )
+  FROM querypoly;
+.print '</svg>'
+
+.print '<h1>Overlap Query</h1>'
+.print '<pre>'
+.print 'SELECT *'
+.print '  FROM geo1, querypoly'
+.print ' WHERE geopoly_overlap(_shape, poly);'
+.print 
+EXPLAIN QUERY PLAN
+SELECT geopoly_svg(_shape,
+         printf('style="fill:none;stroke:%s;stroke-width:1"',geo1.clr)
+       )
+  FROM geo1, querypoly
+ WHERE geopoly_overlap(_shape, poly);
+.print '</pre>'
+.print '<svg width="1000" height="800" style="border:1px solid black">'
+SELECT geopoly_svg(_shape,
+         printf('style="fill:none;stroke:%s;stroke-width:1"',geo1.clr)
+       )
+  FROM geo1, querypoly
+ WHERE geopoly_overlap(_shape, poly);
+SELECT geopoly_svg(poly, 
+         printf('style="fill:%s;fill-opacity:0.5;"',clr)
+       )
+  FROM querypoly;
+.print '</svg>'
+
+.print '<h1>Overlap Query And Result Bounding Box</h1>'
+.print '<svg width="1000" height="800" style="border:1px solid black">'
+SELECT geopoly_svg(_shape,
+         printf('style="fill:none;stroke:%s;stroke-width:1"',geo1.clr)
+       )
+  FROM geo1, querypoly
+ WHERE geopoly_overlap(_shape, poly);
+SELECT geopoly_svg(geopoly_bbox(poly),
+         'style="fill:none;stroke:black;stroke-width:3"'
+       )
+  FROM querypoly;
+SELECT geopoly_svg(poly, 
+         printf('style="fill:%s;fill-opacity:0.5;"',clr)
+       )
+  FROM querypoly;
+SELECT geopoly_svg(geopoly_group_bbox(_shape),
+         'style="fill:none;stroke:red;stroke-width:3"'
+       )
+  FROM geo1, querypoly
+ WHERE geopoly_overlap(_shape, poly);
+.print '</svg>'
+
+.print '<h1>Bounding-Box Overlap Query</h1>'
+.print '<svg width="1000" height="800" style="border:1px solid black">'
+SELECT geopoly_svg(_shape,
+         printf('style="fill:none;stroke:%s;stroke-width:1"',geo1.clr)
+       ),
+       geopoly_svg(geopoly_bbox(_shape),
+         'style="fill:none;stroke:black;stroke-width:1"'
+       )
+  FROM geo1, querypoly
+ WHERE geopoly_overlap(geopoly_bbox(_shape), geopoly_bbox(poly));
+SELECT geopoly_svg(poly, 
+         printf('style="fill:%s;fill-opacity:0.5;"',clr)
+       )
+  FROM querypoly;
+SELECT geopoly_svg(geopoly_bbox(poly),
+         'style="fill:none;stroke:black;stroke-width:3"'
+       )
+  FROM querypoly;
+.print '</svg>'
+
+.print '<h1>Within Query</h1>'
+.print '<pre>'
+.print 'SELECT *'
+.print '  FROM geo1, querypoly'
+.print ' WHERE geopoly_within(_shape, poly);'
+.print 
+EXPLAIN QUERY PLAN
+SELECT geopoly_svg(_shape,
+         printf('style="fill:none;stroke:%s;stroke-width:1"',geo1.clr)
+       )
+  FROM geo1, querypoly
+ WHERE geopoly_within(_shape, poly);
+.print '</pre>'
+.print '<svg width="1000" height="800" style="border:1px solid black">'
+SELECT geopoly_svg(_shape,
+         printf('style="fill:none;stroke:%s;stroke-width:1"',geo1.clr)
+       )
+  FROM geo1, querypoly
+ WHERE geopoly_within(_shape, poly);
+SELECT geopoly_svg(poly, 
+         printf('style="fill:%s;fill-opacity:0.5;"',clr)
+       )
+  FROM querypoly;
+.print '</svg>'
+
+.print '<h1>Bounding-Box WITHIN Query</h1>'
+.print '<svg width="1000" height="800" style="border:1px solid black">'
+SELECT geopoly_svg(_shape,
+         printf('style="fill:none;stroke:%s;stroke-width:1"',geo1.clr)
+       ),
+       geopoly_svg(geopoly_bbox(_shape),
+         'style="fill:none;stroke:black;stroke-width:1"'
+       )
+  FROM geo1, querypoly
+ WHERE geopoly_within(geopoly_bbox(_shape), geopoly_bbox(poly));
+SELECT geopoly_svg(poly, 
+         printf('style="fill:%s;fill-opacity:0.5;"',clr)
+       )
+  FROM querypoly;
+SELECT geopoly_svg(geopoly_bbox(poly),
+         'style="fill:none;stroke:black;stroke-width:3"'
+       )
+  FROM querypoly;
+.print '</svg>'
+
+.print '<h1>Not Overlap Query</h1>'
+.print '<pre>'
+.print 'SELECT *'
+.print '  FROM geo1, querypoly'
+.print ' WHERE NOT geopoly_overlap(_shape, poly);'
+.print 
+EXPLAIN QUERY PLAN
+SELECT geopoly_svg(_shape,
+         printf('style="fill:none;stroke:%s;stroke-width:1"',geo1.clr)
+       )
+  FROM geo1, querypoly
+ WHERE NOT geopoly_overlap(_shape, poly);
+.print '</pre>'
+.print '<svg width="1000" height="800" style="border:1px solid black">'
+SELECT geopoly_svg(_shape,
+         printf('style="fill:none;stroke:%s;stroke-width:1"',geo1.clr)
+       )
+  FROM geo1, querypoly
+ WHERE NOT geopoly_overlap(_shape, poly);
+SELECT geopoly_svg(poly, 
+         printf('style="fill:%s;fill-opacity:0.5;"',clr)
+       )
+  FROM querypoly;
+.print '</svg>'
+
+.print '<h1>Not Within Query</h1>'
+.print '<pre>'
+.print 'SELECT *'
+.print '  FROM geo1, querypoly'
+.print ' WHERE NOT geopoly_within(_shape, poly);'
+.print 
+EXPLAIN QUERY PLAN
+SELECT geopoly_svg(_shape,
+         printf('style="fill:none;stroke:%s;stroke-width:1"',geo1.clr)
+       )
+  FROM geo1, querypoly
+ WHERE NOT geopoly_within(_shape, poly);
+.print '</pre>'
+.print '<svg width="1000" height="800" style="border:1px solid black">'
+SELECT geopoly_svg(_shape,
+         printf('style="fill:none;stroke:%s;stroke-width:1"',geo1.clr)
+       )
+  FROM geo1, querypoly
+ WHERE NOT geopoly_within(_shape, poly);
+SELECT geopoly_svg(poly, 
+         printf('style="fill:%s;fill-opacity:0.5;"',clr)
+       )
+  FROM querypoly;
+.print '</svg>'
+
+.print '<h1>Color-Change For Overlapping Elements</h1>'
+BEGIN;
+UPDATE geo1
+   SET clr=CASE WHEN rowid IN (SELECT geo1.rowid FROM geo1, querypoly
+                                WHERE geopoly_overlap(_shape,poly))
+           THEN 'red' ELSE 'blue' END;
+.print '<svg width="1000" height="800" style="border:1px solid black">'
+SELECT geopoly_svg(_shape,
+         printf('style="fill:none;stroke:%s;stroke-width:1"',geo1.clr)
+       )
+  FROM geo1;
+SELECT geopoly_svg(poly,'style="fill:none;stroke:black;stroke-width:2"')
+  FROM querypoly;
+ROLLBACK;
+.print '</svg>'
+
+.print '<h1>Color-Change And Move Overlapping Elements</h1>'
+BEGIN;
+UPDATE geo1
+   SET clr=CASE WHEN rowid IN (SELECT geo1.rowid FROM geo1, querypoly
+                                WHERE geopoly_overlap(_shape,poly))
+           THEN 'red' ELSE '#76ccff' END;
+UPDATE geo1
+   SET _shape=geopoly_xform(_shape,1,0,0,1,300,0)
+ WHERE geopoly_overlap(_shape,(SELECT poly FROM querypoly));
+.print '<svg width="1000" height="800" style="border:1px solid black">'
+SELECT geopoly_svg(_shape,
+         printf('style="fill:none;stroke:%s;stroke-width:1"',geo1.clr)
+       )
+  FROM geo1;
+SELECT geopoly_svg(poly,'style="fill:none;stroke:black;stroke-width:2"')
+  FROM querypoly;
+--ROLLBACK;
+.print '</svg>'
+
+
+.print '<h1>Overlap With Translated Query Polygon</h1>'
+UPDATE querypoly SET poly=geopoly_xform(poly,1,0,0,1,300,0);
+.print '<svg width="1000" height="800" style="border:1px solid black">'
+SELECT geopoly_svg(_shape,
+         printf('style="fill:none;stroke:%s;stroke-width:1"',geo1.clr)
+       )
+  FROM geo1
+ WHERE geopoly_overlap(_shape,(SELECT poly FROM querypoly));
+SELECT geopoly_svg(poly,'style="fill:none;stroke:black;stroke-width:2"')
+  FROM querypoly;
+ROLLBACK;
+.print '</svg>'
+
+.print '<h1>Regular Polygons</h1>'
+.print '<svg width="1000" height="200" style="border:1px solid black">'
+SELECT geopoly_svg(geopoly_regular(100,100,40,3),'style="fill:none;stroke:red;stroke-width:1"');
+SELECT geopoly_svg(geopoly_regular(200,100,40,4),'style="fill:none;stroke:orange;stroke-width:1"');
+SELECT geopoly_svg(geopoly_regular(300,100,40,5),'style="fill:none;stroke:green;stroke-width:1"');
+SELECT geopoly_svg(geopoly_regular(400,100,40,6),'style="fill:none;stroke:blue;stroke-width:1"');
+SELECT geopoly_svg(geopoly_regular(500,100,40,7),'style="fill:none;stroke:purple;stroke-width:1"');
+SELECT geopoly_svg(geopoly_regular(600,100,40,8),'style="fill:none;stroke:red;stroke-width:1"');
+SELECT geopoly_svg(geopoly_regular(700,100,40,10),'style="fill:none;stroke:orange;stroke-width:1"');
+SELECT geopoly_svg(geopoly_regular(800,100,40,20),'style="fill:none;stroke:green;stroke-width:1"');
+SELECT geopoly_svg(geopoly_regular(900,100,40,30),'style="fill:none;stroke:blue;stroke-width:1"');
+.print '</svg>'
+
+.print '</html>'
diff --git a/ext/session/changeset.c b/ext/session/changeset.c
new file mode 100644
index 0000000000000000000000000000000000000000..9cf62949a10dd4297febc69e744a9f7c1ade28ff
--- /dev/null
+++ b/ext/session/changeset.c
@@ -0,0 +1,417 @@
+/*
+** 2014-08-18
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file contains code to implement the "changeset" command line
+** utility for displaying and transforming changesets generated by
+** the Sessions extension.
+*/
+#include "sqlite3.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <ctype.h>
+
+
+/*
+** Show a usage message on stderr then quit.
+*/
+static void usage(const char *argv0){
+  fprintf(stderr, "Usage: %s FILENAME COMMAND ...\n", argv0);
+  fprintf(stderr,
+    "COMMANDs:\n"
+    "   apply DB           Apply the changeset to database file DB\n"
+    "   concat FILE2 OUT   Concatenate FILENAME and FILE2 into OUT\n"
+    "   dump               Show the complete content of the changeset\n"
+    "   invert OUT         Write an inverted changeset into file OUT\n"
+    "   sql                Give a pseudo-SQL rendering of the changeset\n"
+  );
+  exit(1);
+}
+
+/*
+** Read the content of a disk file into an in-memory buffer
+*/
+static void readFile(const char *zFilename, int *pSz, void **ppBuf){
+  FILE *f;
+  sqlite3_int64 sz;
+  void *pBuf;
+  f = fopen(zFilename, "rb");
+  if( f==0 ){
+    fprintf(stderr, "cannot open \"%s\" for reading\n", zFilename);
+    exit(1);
+  }
+  fseek(f, 0, SEEK_END);
+  sz = ftell(f);
+  rewind(f);
+  pBuf = sqlite3_malloc64( sz ? sz : 1 );
+  if( pBuf==0 ){
+    fprintf(stderr, "cannot allocate %d to hold content of \"%s\"\n",
+            (int)sz, zFilename);
+    exit(1);
+  }
+  if( sz>0 ){
+    if( fread(pBuf, (size_t)sz, 1, f)!=1 ){
+      fprintf(stderr, "cannot read all %d bytes of \"%s\"\n",
+              (int)sz, zFilename);
+      exit(1);
+    }
+    fclose(f);
+  }
+  *pSz = (int)sz;
+  *ppBuf = pBuf;
+}
+
+/* Array for converting from half-bytes (nybbles) into ASCII hex
+** digits. */
+static const char hexdigits[] = {
+  '0', '1', '2', '3', '4', '5', '6', '7',
+  '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' 
+};
+
+/*
+** Render an sqlite3_value as an SQL string.
+*/
+static void renderValue(sqlite3_value *pVal){
+  switch( sqlite3_value_type(pVal) ){
+    case SQLITE_FLOAT: {
+      double r1;
+      char zBuf[50];
+      r1 = sqlite3_value_double(pVal);
+      sqlite3_snprintf(sizeof(zBuf), zBuf, "%!.15g", r1);
+      printf("%s", zBuf);
+      break;
+    }
+    case SQLITE_INTEGER: {
+      printf("%lld", sqlite3_value_int64(pVal));
+      break;
+    }
+    case SQLITE_BLOB: {
+      char const *zBlob = sqlite3_value_blob(pVal);
+      int nBlob = sqlite3_value_bytes(pVal);
+      int i;
+      printf("x'");
+      for(i=0; i<nBlob; i++){
+        putchar(hexdigits[(zBlob[i]>>4)&0x0F]);
+        putchar(hexdigits[(zBlob[i])&0x0F]);
+      }
+      putchar('\'');
+      break;
+    }
+    case SQLITE_TEXT: {
+      const unsigned char *zArg = sqlite3_value_text(pVal);
+      putchar('\'');
+      while( zArg[0] ){
+        putchar(zArg[0]);
+        if( zArg[0]=='\'' ) putchar(zArg[0]);
+        zArg++;
+      }
+      putchar('\'');
+      break;
+    }
+    default: {
+      assert( sqlite3_value_type(pVal)==SQLITE_NULL );
+      printf("NULL");
+      break;
+    }
+  }
+}
+
+/*
+** Number of conflicts seen
+*/
+static int nConflict = 0;
+
+/*
+** The conflict callback
+*/
+static int conflictCallback(
+  void *pCtx,
+  int eConflict,
+  sqlite3_changeset_iter *pIter
+){
+  int op, bIndirect, nCol, i;
+  const char *zTab;
+  unsigned char *abPK;
+  const char *zType = "";
+  const char *zOp = "";
+  const char *zSep = " ";
+
+  nConflict++;
+  sqlite3changeset_op(pIter, &zTab, &nCol, &op, &bIndirect);
+  sqlite3changeset_pk(pIter, &abPK, 0);
+  switch( eConflict ){
+    case SQLITE_CHANGESET_DATA:         zType = "DATA";         break;
+    case SQLITE_CHANGESET_NOTFOUND:     zType = "NOTFOUND";     break;
+    case SQLITE_CHANGESET_CONFLICT:     zType = "PRIMARY KEY";  break;
+    case SQLITE_CHANGESET_FOREIGN_KEY:  zType = "FOREIGN KEY";  break;
+    case SQLITE_CHANGESET_CONSTRAINT:   zType = "CONSTRAINT";   break;
+  }
+  switch( op ){
+    case SQLITE_UPDATE:     zOp = "UPDATE of";     break;
+    case SQLITE_INSERT:     zOp = "INSERT into";   break;
+    case SQLITE_DELETE:     zOp = "DELETE from";   break;
+  }
+  printf("%s conflict on %s table %s with primary key", zType, zOp, zTab);
+  for(i=0; i<nCol; i++){
+    sqlite3_value *pVal;
+    if( abPK[i]==0 ) continue;
+    printf("%s", zSep);
+    if( op==SQLITE_INSERT ){
+      sqlite3changeset_new(pIter, i, &pVal);
+    }else{
+      sqlite3changeset_old(pIter, i, &pVal);
+    }
+    renderValue(pVal);
+    zSep = ",";
+  }
+  printf("\n");
+  return SQLITE_CHANGESET_OMIT;
+}
+
+int main(int argc, char **argv){
+  int sz, rc;
+  void *pBuf = 0;
+  if( argc<3 ) usage(argv[0]);
+  readFile(argv[1], &sz, &pBuf);
+
+  /* changeset FILENAME apply DB
+  ** Apply the changeset in FILENAME to the database file DB
+  */
+  if( strcmp(argv[2],"apply")==0 ){
+    sqlite3 *db;
+    if( argc!=4 ) usage(argv[0]);
+    rc = sqlite3_open(argv[3], &db);
+    if( rc!=SQLITE_OK ){
+      fprintf(stderr, "unable to open database file \"%s\": %s\n",
+              argv[3], sqlite3_errmsg(db));
+      sqlite3_close(db);
+      exit(1);
+    }
+    sqlite3_exec(db, "BEGIN", 0, 0, 0);
+    nConflict = 0;
+    rc = sqlite3changeset_apply(db, sz, pBuf, 0, conflictCallback, 0);
+    if( rc ){
+      fprintf(stderr, "sqlite3changeset_apply() returned %d\n", rc);
+    }
+    if( nConflict ){
+      fprintf(stderr, "%d conflicts - no changes applied\n", nConflict);
+      sqlite3_exec(db, "ROLLBACK", 0, 0, 0);
+    }else if( rc ){
+      fprintf(stderr, "sqlite3changeset_apply() returns %d "
+                      "- no changes applied\n", rc);
+      sqlite3_exec(db, "ROLLBACK", 0, 0, 0);
+    }else{
+      sqlite3_exec(db, "COMMIT", 0, 0, 0);
+    }
+    sqlite3_close(db);
+  }else
+
+  /* changeset FILENAME concat FILE2 OUT
+  ** Add changeset FILE2 onto the end of the changeset in FILENAME
+  ** and write the result into OUT.
+  */
+  if( strcmp(argv[2],"concat")==0 ){
+    int szB;
+    void *pB;
+    int szOut;
+    void *pOutBuf;
+    FILE *out;
+    const char *zOut = argv[4];
+    if( argc!=5 ) usage(argv[0]);
+    out = fopen(zOut, "wb");
+    if( out==0 ){
+      fprintf(stderr, "cannot open \"%s\" for writing\n", zOut);
+      exit(1);
+    }
+    readFile(argv[3], &szB, &pB);
+    rc = sqlite3changeset_concat(sz, pBuf, szB, pB, &szOut, &pOutBuf);
+    if( rc!=SQLITE_OK ){
+      fprintf(stderr, "sqlite3changeset_concat() returns %d\n", rc);
+    }else if( szOut>0 && fwrite(pOutBuf, szOut, 1, out)!=1 ){
+      fprintf(stderr, "unable to write all %d bytes of output to \"%s\"\n",
+              szOut, zOut);
+    }
+    fclose(out);
+    sqlite3_free(pOutBuf);
+    sqlite3_free(pB);
+  }else
+
+  /* changeset FILENAME dump
+  ** Show the complete content of the changeset in FILENAME
+  */
+  if( strcmp(argv[2],"dump")==0 ){
+    int cnt = 0;
+    int i;
+    sqlite3_changeset_iter *pIter;
+    rc = sqlite3changeset_start(&pIter, sz, pBuf);
+    if( rc!=SQLITE_OK ){
+      fprintf(stderr, "sqlite3changeset_start() returns %d\n", rc);
+      exit(1);
+    }
+    while( sqlite3changeset_next(pIter)==SQLITE_ROW ){
+      int op, bIndirect, nCol;
+      const char *zTab;
+      unsigned char *abPK;
+      sqlite3changeset_op(pIter, &zTab, &nCol, &op, &bIndirect);
+      cnt++;
+      printf("%d: %s table=[%s] indirect=%d nColumn=%d\n",
+             cnt, op==SQLITE_INSERT ? "INSERT" :
+                       op==SQLITE_UPDATE ? "UPDATE" : "DELETE",
+             zTab, bIndirect, nCol);
+      sqlite3changeset_pk(pIter, &abPK, 0);
+      for(i=0; i<nCol; i++){
+        sqlite3_value *pVal;
+        pVal = 0;
+        sqlite3changeset_old(pIter, i, &pVal);
+        if( pVal ){
+          printf("    old[%d]%s = ", i, abPK[i] ? "pk" : "  ");
+          renderValue(pVal);
+          printf("\n");
+        }
+        pVal = 0;
+        sqlite3changeset_new(pIter, i, &pVal);
+        if( pVal ){
+          printf("    new[%d]%s = ", i, abPK[i] ? "pk" : "  ");
+          renderValue(pVal);
+          printf("\n");
+        }
+      }
+    }
+    sqlite3changeset_finalize(pIter);
+  }else
+
+  /* changeset FILENAME invert OUT
+  ** Invert the changes in FILENAME and writes the result on OUT
+  */
+  if( strcmp(argv[2],"invert")==0 ){
+    FILE *out;
+    int szOut = 0;
+    void *pOutBuf = 0;
+    const char *zOut = argv[3];
+    if( argc!=4 ) usage(argv[0]);
+    out = fopen(zOut, "wb");
+    if( out==0 ){
+      fprintf(stderr, "cannot open \"%s\" for writing\n", zOut);
+      exit(1);
+    }
+    rc = sqlite3changeset_invert(sz, pBuf, &szOut, &pOutBuf);
+    if( rc!=SQLITE_OK ){
+      fprintf(stderr, "sqlite3changeset_invert() returns %d\n", rc);
+    }else if( szOut>0 && fwrite(pOutBuf, szOut, 1, out)!=1 ){
+      fprintf(stderr, "unable to write all %d bytes of output to \"%s\"\n",
+              szOut, zOut);
+    }
+    fclose(out);
+    sqlite3_free(pOutBuf);
+  }else
+
+  /* changeset FILE sql
+  ** Show the content of the changeset as pseudo-SQL
+  */
+  if( strcmp(argv[2],"sql")==0 ){
+    int cnt = 0;
+    char *zPrevTab = 0;
+    char *zSQLTabName = 0;
+    sqlite3_changeset_iter *pIter = 0;
+    rc = sqlite3changeset_start(&pIter, sz, pBuf);
+    if( rc!=SQLITE_OK ){
+      fprintf(stderr, "sqlite3changeset_start() returns %d\n", rc);
+      exit(1);
+    }
+    printf("BEGIN;\n");
+    while( sqlite3changeset_next(pIter)==SQLITE_ROW ){
+      int op, bIndirect, nCol;
+      const char *zTab;
+      sqlite3changeset_op(pIter, &zTab, &nCol, &op, &bIndirect);
+      cnt++;
+      if( zPrevTab==0 || strcmp(zPrevTab,zTab)!=0 ){
+        sqlite3_free(zPrevTab);
+        sqlite3_free(zSQLTabName);
+        zPrevTab = sqlite3_mprintf("%s", zTab);
+        if( !isalnum(zTab[0]) || sqlite3_strglob("*[^a-zA-Z0-9]*",zTab)==0 ){
+          zSQLTabName = sqlite3_mprintf("\"%w\"", zTab);
+        }else{
+          zSQLTabName = sqlite3_mprintf("%s", zTab);
+        }
+        printf("/****** Changes for table %s ***************/\n", zSQLTabName);
+      }
+      switch( op ){
+        case SQLITE_DELETE: {
+          unsigned char *abPK;
+          int i;
+          const char *zSep = " ";
+          sqlite3changeset_pk(pIter, &abPK, 0);
+          printf("/* %d */ DELETE FROM %s WHERE", cnt, zSQLTabName);
+          for(i=0; i<nCol; i++){
+            sqlite3_value *pVal;
+            if( abPK[i]==0 ) continue;
+            printf("%sc%d=", zSep, i+1);
+            zSep = " AND ";
+            sqlite3changeset_old(pIter, i, &pVal);
+            renderValue(pVal);
+          }
+          printf(";\n");
+          break;
+        }
+        case SQLITE_UPDATE: {
+          unsigned char *abPK;
+          int i;
+          const char *zSep = " ";
+          sqlite3changeset_pk(pIter, &abPK, 0);
+          printf("/* %d */ UPDATE %s SET", cnt, zSQLTabName);
+          for(i=0; i<nCol; i++){
+            sqlite3_value *pVal = 0;
+            sqlite3changeset_new(pIter, i, &pVal);
+            if( pVal ){
+              printf("%sc%d=", zSep, i+1);
+              zSep = ", ";
+              renderValue(pVal);
+            }
+          }
+          printf(" WHERE");
+          zSep = " ";
+          for(i=0; i<nCol; i++){
+            sqlite3_value *pVal;
+            if( abPK[i]==0 ) continue;
+            printf("%sc%d=", zSep, i+1);
+            zSep = " AND ";
+            sqlite3changeset_old(pIter, i, &pVal);
+            renderValue(pVal);
+          }
+          printf(";\n");
+          break;
+        }
+        case SQLITE_INSERT: {
+          int i;
+          printf("/* %d */ INSERT INTO %s VALUES", cnt, zSQLTabName);
+          for(i=0; i<nCol; i++){
+            sqlite3_value *pVal;
+            printf("%c", i==0 ? '(' : ',');
+            sqlite3changeset_new(pIter, i, &pVal);
+            renderValue(pVal);
+          }
+          printf(");\n");
+          break;
+        }
+      }
+    }
+    printf("COMMIT;\n");
+    sqlite3changeset_finalize(pIter);
+    sqlite3_free(zPrevTab);
+    sqlite3_free(zSQLTabName);
+  }else
+
+  /* If nothing else matches, show the usage comment */
+  usage(argv[0]);
+  sqlite3_free(pBuf);
+  return 0; 
+}
diff --git a/ext/session/changesetfuzz.c b/ext/session/changesetfuzz.c
new file mode 100644
index 0000000000000000000000000000000000000000..bbd72f6d9dde07770194c3c1b068fa2e7691fa9a
--- /dev/null
+++ b/ext/session/changesetfuzz.c
@@ -0,0 +1,1238 @@
+/*
+** 2018-11-01
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file contains code to implement the "changesetfuzz" command 
+** line utility for fuzzing changeset blobs without corrupting them.
+*/
+
+
+/************************************************************************
+** USAGE:
+**
+** This program may be invoked in two ways:
+**
+**   changesetfuzz INPUT
+**   changesetfuzz INPUT SEED N
+**
+** Argument INPUT must be the name of a file containing a binary changeset.
+** In the first form above, this program outputs a human-readable version
+** of the same changeset. This is chiefly for debugging.
+**
+** As well as changesets, this program can also dump and fuzz patchsets.
+** The term "changeset" is used for both patchsets and changesets from this
+** point on.
+**
+** In the second form, arguments SEED and N must both be integers. In this
+** case, this program writes N binary changesets to disk. Each output
+** changeset is a slightly modified - "fuzzed" - version of the input. 
+** The output changesets are written to files name "INPUT-$n", where $n is 
+** an integer between 0 and N-1, inclusive. Output changesets are always
+** well-formed. Parameter SEED is used to seed the PRNG - any two 
+** invocations of this program with the same SEED and input changeset create
+** the same N output changesets.
+**
+** The ways in which an input changeset may be fuzzed are as follows:
+**
+**   1. Any two values within the changeset may be exchanged.
+**
+**   2. Any TEXT, BLOB, INTEGER or REAL value within the changeset 
+**      may have a single bit of its content flipped.
+**
+**   3. Any value within a changeset may be replaced by a pseudo-randomly
+**      generated value.
+**
+** The above operations never set a PRIMARY KEY column to NULL. Nor do they
+** set any value to "undefined", or replace any "undefined" value with
+** another. Any such operation risks producing a changeset that is not 
+** well-formed.
+**
+**   4. A single change may be duplicated.
+**
+**   5. A single change may be removed, so long as this does not mean that
+**      there are zero changes following a table-header within the changeset.
+**
+**   6. A single change may have its type (INSERT, DELETE, UPDATE) changed.
+**      If an INSERT is changed to a DELETE (or vice versa), the type is
+**      simply changed - no other modifications are required. If an INSERT
+**      or DELETE is changed to an UPDATE, then the single record is duplicated
+**      (as both the old.* and new.* records of the new UPDATE change). If an
+**      UPDATE is changed to a DELETE or INSERT, the new.* record is discarded
+**      and any "undefined" fields replaced with pseudo-randomly generated
+**      values.
+**
+**   7. An UPDATE change that modifies N table columns may be modified so
+**      that it updates N-1 columns, so long as (N>1).
+**
+**   8. The "indirect" flag may be toggled for any change.
+**
+** Entire group of changes may also be operated on:
+**
+**   9. Duplicate an existing group.
+**
+**  10. Remove an existing group.
+**
+**  11. The positions of two groups may be exchanged.
+**
+** There are also schema changes:
+**
+**  12. A non-PK column may be added to a table. In this case a NULL 
+**      value is appended to all records.
+**
+**  13. A PK column may be added to a table. In this case a non-NULL 
+**      value is appended to all INSERT, DELETE and UPDATE old.* records.
+**      An "undefined" is appended to new.* UPDATE records.
+**
+**  14. A column may be removed from a table, provided that it is not the
+**      only PRIMARY KEY column in the table. In this case the corresponding
+**      field is removed from all records. In cases where this leaves an UPDATE
+**      with no non-PK, non-undefined fields, the entire change is removed.
+*/
+
+#include "sqlite3.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <ctype.h>
+
+#define FUZZ_VALUE_SUB       1    /* Replace one value with a copy of another */
+#define FUZZ_VALUE_MOD       2    /* Modify content by 1 bit */
+#define FUZZ_VALUE_RND       3    /* Replace with pseudo-random value */
+
+#define FUZZ_CHANGE_DUP      4    /* Duplicate an existing change */
+#define FUZZ_CHANGE_DEL      5    /* Completely remove one change */
+#define FUZZ_CHANGE_TYPE     6    /* Change the type of one change */
+#define FUZZ_CHANGE_FIELD    7    /* Change an UPDATE to modify fewer columns */
+#define FUZZ_CHANGE_INDIRECT 8    /* Toggle the "indirect" flag of a change */
+
+#define FUZZ_GROUP_DUP       9    /* Duplicate a change group */
+#define FUZZ_GROUP_DEL      10    /* Delete an entire change group */
+#define FUZZ_GROUP_SWAP     11    /* Exchange the position of two groups */
+
+#define FUZZ_COLUMN_ADD     12     /* Add column to table definition */
+#define FUZZ_COLUMN_ADDPK   13     /* Add PK column to table definition */
+#define FUZZ_COLUMN_DEL     14     /* Remove column from table definition */
+
+
+
+typedef unsigned char u8;
+typedef sqlite3_uint64 u64;
+typedef sqlite3_int64 i64;
+typedef unsigned int u32;
+
+/*
+** Show a usage message on stderr then quit.
+*/
+static void usage(const char *argv0){
+  fprintf(stderr, "Usage: %s FILENAME ?SEED N?\n", argv0);
+  exit(1);
+}
+
+/*
+** Read the content of a disk file into an in-memory buffer
+*/
+static void fuzzReadFile(const char *zFilename, int *pSz, void **ppBuf){
+  FILE *f;
+  sqlite3_int64 sz;
+  void *pBuf;
+  f = fopen(zFilename, "rb");
+  if( f==0 ){
+    fprintf(stderr, "cannot open \"%s\" for reading\n", zFilename);
+    exit(1);
+  }
+  fseek(f, 0, SEEK_END);
+  sz = ftell(f);
+  rewind(f);
+  pBuf = sqlite3_malloc64( sz ? sz : 1 );
+  if( pBuf==0 ){
+    fprintf(stderr, "cannot allocate %d to hold content of \"%s\"\n",
+            (int)sz, zFilename);
+    exit(1);
+  }
+  if( sz>0 ){
+    if( fread(pBuf, (size_t)sz, 1, f)!=1 ){
+      fprintf(stderr, "cannot read all %d bytes of \"%s\"\n",
+              (int)sz, zFilename);
+      exit(1);
+    }
+    fclose(f);
+  }
+  *pSz = (int)sz;
+  *ppBuf = pBuf;
+}
+
+/* 
+** Write the contents of buffer pBuf, size nBuf bytes, into file zFilename
+** on disk. zFilename, if it already exists, is clobbered.
+*/
+static void fuzzWriteFile(const char *zFilename, void *pBuf, int nBuf){
+  FILE *f;
+  f = fopen(zFilename, "wb");
+  if( f==0 ){
+    fprintf(stderr, "cannot open \"%s\" for writing\n", zFilename);
+    exit(1);
+  }
+  if( fwrite(pBuf, nBuf, 1, f)!=1 ){
+    fprintf(stderr, "cannot write to \"%s\"\n", zFilename);
+    exit(1);
+  }
+  fclose(f);
+}
+
+static int fuzzCorrupt(){
+  return SQLITE_CORRUPT;
+}
+
+/*************************************************************************
+** The following block is a copy of the implementation of SQLite function
+** sqlite3_randomness. This version has two important differences:
+**
+**   1. It always uses the same seed. So the sequence of random data output
+**      is the same for every run of the program.
+**
+**   2. It is not threadsafe.
+*/
+static struct sqlite3PrngType {
+  unsigned char i, j;             /* State variables */
+  unsigned char s[256];           /* State variables */
+} sqlite3Prng = {
+    0xAF, 0x28,
+  {
+    0x71, 0xF5, 0xB4, 0x6E, 0x80, 0xAB, 0x1D, 0xB8, 
+    0xFB, 0xB7, 0x49, 0xBF, 0xFF, 0x72, 0x2D, 0x14, 
+    0x79, 0x09, 0xE3, 0x78, 0x76, 0xB0, 0x2C, 0x0A, 
+    0x8E, 0x23, 0xEE, 0xDF, 0xE0, 0x9A, 0x2F, 0x67, 
+    0xE1, 0xBE, 0x0E, 0xA7, 0x08, 0x97, 0xEB, 0x77, 
+    0x78, 0xBA, 0x9D, 0xCA, 0x49, 0x4C, 0x60, 0x9A, 
+    0xF6, 0xBD, 0xDA, 0x7F, 0xBC, 0x48, 0x58, 0x52, 
+    0xE5, 0xCD, 0x83, 0x72, 0x23, 0x52, 0xFF, 0x6D, 
+    0xEF, 0x0F, 0x82, 0x29, 0xA0, 0x83, 0x3F, 0x7D, 
+    0xA4, 0x88, 0x31, 0xE7, 0x88, 0x92, 0x3B, 0x9B, 
+    0x3B, 0x2C, 0xC2, 0x4C, 0x71, 0xA2, 0xB0, 0xEA, 
+    0x36, 0xD0, 0x00, 0xF1, 0xD3, 0x39, 0x17, 0x5D, 
+    0x2A, 0x7A, 0xE4, 0xAD, 0xE1, 0x64, 0xCE, 0x0F, 
+    0x9C, 0xD9, 0xF5, 0xED, 0xB0, 0x22, 0x5E, 0x62, 
+    0x97, 0x02, 0xA3, 0x8C, 0x67, 0x80, 0xFC, 0x88, 
+    0x14, 0x0B, 0x15, 0x10, 0x0F, 0xC7, 0x40, 0xD4, 
+    0xF1, 0xF9, 0x0E, 0x1A, 0xCE, 0xB9, 0x1E, 0xA1, 
+    0x72, 0x8E, 0xD7, 0x78, 0x39, 0xCD, 0xF4, 0x5D, 
+    0x2A, 0x59, 0x26, 0x34, 0xF2, 0x73, 0x0B, 0xA0, 
+    0x02, 0x51, 0x2C, 0x03, 0xA3, 0xA7, 0x43, 0x13, 
+    0xE8, 0x98, 0x2B, 0xD2, 0x53, 0xF8, 0xEE, 0x91, 
+    0x7D, 0xE7, 0xE3, 0xDA, 0xD5, 0xBB, 0xC0, 0x92, 
+    0x9D, 0x98, 0x01, 0x2C, 0xF9, 0xB9, 0xA0, 0xEB, 
+    0xCF, 0x32, 0xFA, 0x01, 0x49, 0xA5, 0x1D, 0x9A, 
+    0x76, 0x86, 0x3F, 0x40, 0xD4, 0x89, 0x8F, 0x9C, 
+    0xE2, 0xE3, 0x11, 0x31, 0x37, 0xB2, 0x49, 0x28, 
+    0x35, 0xC0, 0x99, 0xB6, 0xD0, 0xBC, 0x66, 0x35, 
+    0xF7, 0x83, 0x5B, 0xD7, 0x37, 0x1A, 0x2B, 0x18, 
+    0xA6, 0xFF, 0x8D, 0x7C, 0x81, 0xA8, 0xFC, 0x9E, 
+    0xC4, 0xEC, 0x80, 0xD0, 0x98, 0xA7, 0x76, 0xCC, 
+    0x9C, 0x2F, 0x7B, 0xFF, 0x8E, 0x0E, 0xBB, 0x90, 
+    0xAE, 0x13, 0x06, 0xF5, 0x1C, 0x4E, 0x52, 0xF7
+  }
+};
+
+/* 
+** Generate and return single random byte 
+*/
+static unsigned char fuzzRandomByte(void){
+  unsigned char t;
+  sqlite3Prng.i++;
+  t = sqlite3Prng.s[sqlite3Prng.i];
+  sqlite3Prng.j += t;
+  sqlite3Prng.s[sqlite3Prng.i] = sqlite3Prng.s[sqlite3Prng.j];
+  sqlite3Prng.s[sqlite3Prng.j] = t;
+  t += sqlite3Prng.s[sqlite3Prng.i];
+  return sqlite3Prng.s[t];
+}
+
+/*
+** Return N random bytes.
+*/
+static void fuzzRandomBlob(int nBuf, unsigned char *zBuf){
+  int i;
+  for(i=0; i<nBuf; i++){
+    zBuf[i] = fuzzRandomByte();
+  }
+}
+
+/*
+** Return a random integer between 0 and nRange (not inclusive).
+*/
+static unsigned int fuzzRandomInt(unsigned int nRange){
+  unsigned int ret;
+  assert( nRange>0 );
+  fuzzRandomBlob(sizeof(ret), (unsigned char*)&ret);
+  return (ret % nRange);
+}
+
+static u64 fuzzRandomU64(){
+  u64 ret;
+  fuzzRandomBlob(sizeof(ret), (unsigned char*)&ret);
+  return ret;
+}
+
+static void fuzzRandomSeed(unsigned int iSeed){
+  int i;
+  for(i=0; i<256; i+=4){
+    sqlite3Prng.s[i] ^= ((iSeed >> 24) & 0xFF);
+    sqlite3Prng.s[i+1] ^= ((iSeed >> 16) & 0xFF);
+    sqlite3Prng.s[i+2] ^= ((iSeed >>  8) & 0xFF);
+    sqlite3Prng.s[i+3] ^= ((iSeed >>  0) & 0xFF);
+  }
+}
+/*
+** End of code for generating pseudo-random values.
+*************************************************************************/
+
+typedef struct FuzzChangeset FuzzChangeset;
+typedef struct FuzzChangesetGroup FuzzChangesetGroup;
+typedef struct FuzzChange FuzzChange;
+
+/* 
+** Object containing partially parsed changeset.
+*/
+struct FuzzChangeset {
+  int bPatchset;                  /* True for a patchset */
+  FuzzChangesetGroup **apGroup;   /* Array of groups in changeset */
+  int nGroup;                     /* Number of items in list pGroup */
+  u8 **apVal;                     /* Array of all values in changeset */
+  int nVal;                       /* Number of used slots in apVal[] */
+  int nChange;                    /* Number of changes in changeset */
+  int nUpdate;                    /* Number of UPDATE changes in changeset */
+};
+
+/* 
+** There is one object of this type for each change-group (table header)
+** in the input changeset.
+*/
+struct FuzzChangesetGroup {
+  const char *zTab;               /* Name of table */
+  int nCol;                       /* Number of columns in table */
+  u8 *aPK;                        /* PK array for this table */
+  u8 *aChange;                    /* Buffer containing array of changes */
+  int szChange;                   /* Size of buffer aChange[] in bytes */
+  int nChange;                    /* Number of changes in buffer aChange[] */
+};
+
+/*
+** Description of a fuzz change to be applied to a changeset.
+*/
+struct FuzzChange {
+  int eType;                      /* One of the FUZZ_* constants above */
+  int iChange;                    /* Change or UPDATE to modify */
+  int iGroup;                     /* Group to modify */
+  int iDelete;                    /* Field to remove (FUZZ_COLUMN_DEL) */
+  u8 *pSub1;                      /* Replace this value with pSub2 */
+  u8 *pSub2;                      /* And this one with pSub1 */
+  u8 aSub[128];                   /* Buffer for substitute value */
+  int iCurrent;                   /* Current change number */
+};
+
+/*
+** Allocate and return nByte bytes of zeroed memory.
+*/
+static void *fuzzMalloc(sqlite3_int64 nByte){
+  void *pRet = sqlite3_malloc64(nByte);
+  if( pRet ){
+    memset(pRet, 0, (size_t)nByte);
+  }
+  return pRet;
+}
+
+/*
+** Free the buffer indicated by the first argument. This function is used
+** to free buffers allocated by fuzzMalloc().
+*/
+static void fuzzFree(void *p){
+  sqlite3_free(p);
+}
+
+/*
+** Argument p points to a buffer containing an SQLite varint that, assuming the
+** input is not corrupt, may be between 0 and 0x7FFFFFFF, inclusive. Before
+** returning, this function sets (*pnVal) to the value of that varint, and
+** returns the number of bytes of space that it takes up.
+*/
+static int fuzzGetVarint(u8 *p, int *pnVal){
+  int i;
+  sqlite3_uint64 nVal = 0;
+  for(i=0; i<9; i++){
+    nVal = (nVal<<7) + (p[i] & 0x7F);
+    if( (p[i] & 0x80)==0 ){
+      i++;
+      break;
+    }
+  }
+  *pnVal = (int)nVal;
+  return i;
+}
+
+/*
+** Write value nVal into the buffer indicated by argument p as an SQLite
+** varint. nVal is guaranteed to be between 0 and (2^21-1), inclusive.
+** Return the number of bytes written to buffer p.
+*/
+static int fuzzPutVarint(u8 *p, int nVal){
+  assert( nVal>0 && nVal<2097152 );
+  if( nVal<128 ){
+    p[0] = (u8)nVal;
+    return 1;
+  }
+  if( nVal<16384 ){
+    p[0] = ((nVal >> 7) & 0x7F) | 0x80;
+    p[1] = (nVal & 0x7F);
+    return 2;
+  }
+
+  p[0] = ((nVal >> 14) & 0x7F) | 0x80;
+  p[1] = ((nVal >> 7) & 0x7F) | 0x80;
+  p[2] = (nVal & 0x7F);
+  return 3;
+}
+
+/*
+** Read a 64-bit big-endian integer value from buffer aRec[]. Return
+** the value read.
+*/
+static i64 fuzzGetI64(u8 *aRec){
+  return (i64)(
+      (((u64)aRec[0]) << 56)
+    + (((u64)aRec[1]) << 48)
+    + (((u64)aRec[2]) << 40)
+    + (((u64)aRec[3]) << 32)
+    + (((u64)aRec[4]) << 24)
+    + (((u64)aRec[5]) << 16)
+    + (((u64)aRec[6]) <<  8)
+    + (((u64)aRec[7]) <<  0)
+  );
+}
+
+/*
+** Write value iVal to buffer aRec[] as an unsigned 64-bit big-endian integer.
+*/
+static void fuzzPutU64(u8 *aRec, u64 iVal){
+  aRec[0] = (iVal>>56) & 0xFF;
+  aRec[1] = (iVal>>48) & 0xFF;
+  aRec[2] = (iVal>>40) & 0xFF;
+  aRec[3] = (iVal>>32) & 0xFF;
+  aRec[4] = (iVal>>24) & 0xFF;
+  aRec[5] = (iVal>>16) & 0xFF;
+  aRec[6] = (iVal>> 8) & 0xFF;
+  aRec[7] = (iVal)     & 0xFF;
+}
+
+/*
+** Parse a single table-header from the input. Allocate a new change-group
+** object with the results. Return SQLITE_OK if successful, or an error code
+** otherwise.
+*/
+static int fuzzParseHeader(
+  FuzzChangeset *pParse,          /* Changeset parse object */
+  u8 **ppHdr,                     /* IN/OUT: Iterator */
+  u8 *pEnd,                       /* 1 byte past EOF */
+  FuzzChangesetGroup **ppGrp      /* OUT: New change-group object */
+){
+  int rc = SQLITE_OK;
+  FuzzChangesetGroup *pGrp;
+  u8 cHdr = (pParse->bPatchset ? 'P' : 'T');
+
+  assert( pEnd>(*ppHdr) );
+  pGrp = (FuzzChangesetGroup*)fuzzMalloc(sizeof(FuzzChangesetGroup));
+  if( !pGrp ){
+    rc = SQLITE_NOMEM;
+  }else{
+    u8 *p = *ppHdr;
+    if( p[0]!=cHdr ){
+      rc = fuzzCorrupt();
+    }else{
+      p++;
+      p += fuzzGetVarint(p, &pGrp->nCol);
+      pGrp->aPK = p;
+      p += pGrp->nCol;
+      pGrp->zTab = (const char*)p;
+      p = &p[strlen((const char*)p)+1];
+
+      if( p>=pEnd ){
+        rc = fuzzCorrupt();
+      }
+    }
+    *ppHdr = p;
+  }
+
+  if( rc!=SQLITE_OK ){
+    fuzzFree(pGrp);
+    pGrp = 0;
+  }
+
+  *ppGrp = pGrp;
+  return rc;
+}
+
+/*
+** Argument p points to a buffer containing a single changeset-record value. 
+** This function attempts to determine the size of the value in bytes. If
+** successful, it sets (*pSz) to the size and returns SQLITE_OK. Or, if the
+** buffer does not contain a valid value, SQLITE_CORRUPT is returned and
+** the final value of (*pSz) is undefined.
+*/
+static int fuzzChangeSize(u8 *p, int *pSz){
+  u8 eType = p[0];
+  switch( eType ){
+    case 0x00:                    /* undefined */
+    case 0x05:                    /* null */
+      *pSz = 1;
+      break;
+
+    case 0x01:                    /* integer */
+    case 0x02:                    /* real */
+      *pSz = 9;
+      break;
+
+    case 0x03:                    /* text */
+    case 0x04: {                  /* blob */
+      int nTxt;
+      int sz;
+      sz = fuzzGetVarint(&p[1], &nTxt);
+      *pSz = 1 + sz + nTxt;
+      break;
+    }
+
+    default:
+      return fuzzCorrupt();
+  }
+  return SQLITE_OK;
+}
+
+/*
+** When this function is called, (*ppRec) points to the start of a 
+** record in a changeset being parsed. This function adds entries
+** to the pParse->apVal[] array for all values and advances (*ppRec) 
+** to one byte past the end of the record. Argument pEnd points to
+** one byte past the end of the input changeset.
+**
+** Argument bPkOnly is true if the record being parsed is part of
+** a DELETE record in a patchset. In this case, all non-primary-key
+** fields have been omitted from the record.
+**
+** SQLITE_OK is returned if successful, or an SQLite error code otherwise.
+*/
+static int fuzzParseRecord(
+  u8 **ppRec,                     /* IN/OUT: Iterator */
+  u8 *pEnd,                       /* One byte after end of input data */
+  FuzzChangeset *pParse,          /* Changeset parse context */
+  int bPkOnly                     /* True if non-PK fields omitted */
+){
+  int rc = SQLITE_OK;
+  FuzzChangesetGroup *pGrp = pParse->apGroup[pParse->nGroup-1];
+  int i;
+  u8 *p = *ppRec;
+
+  for(i=0; rc==SQLITE_OK && i<pGrp->nCol; i++){
+    if( bPkOnly==0 || pGrp->aPK[i] ){
+      int sz;
+      if( p>=pEnd ) break;
+      if( (pParse->nVal & (pParse->nVal-1))==0 ){
+        int nNew = pParse->nVal ? pParse->nVal*2 : 4;
+        u8 **apNew = (u8**)sqlite3_realloc(pParse->apVal, nNew*sizeof(u8*));
+        if( apNew==0 ) return SQLITE_NOMEM;
+        pParse->apVal = apNew;
+      }
+      pParse->apVal[pParse->nVal++] = p;
+      rc = fuzzChangeSize(p, &sz);
+      p += sz;
+    }
+  }
+
+  if( rc==SQLITE_OK && i<pGrp->nCol ){
+    rc = fuzzCorrupt();
+  }
+
+  *ppRec = p;
+  return rc;
+}
+
+/*
+** Parse the array of changes starting at (*ppData) and add entries for
+** all values to the pParse->apVal[] array. Argument pEnd points to one byte
+** past the end of the input changeset. If successful, set (*ppData) to point
+** to one byte past the end of the change array and return SQLITE_OK.
+** Otherwise, return an SQLite error code. The final value of (*ppData) is
+** undefined in this case.
+*/
+static int fuzzParseChanges(u8 **ppData, u8 *pEnd, FuzzChangeset *pParse){
+  u8 cHdr = (pParse->bPatchset ? 'P' : 'T');
+  FuzzChangesetGroup *pGrp = pParse->apGroup[pParse->nGroup-1];
+  int rc = SQLITE_OK;
+  u8 *p = *ppData;
+
+  pGrp->aChange = p;
+  while( rc==SQLITE_OK && p<pEnd && p[0]!=cHdr ){
+    u8 eOp = p[0];
+    u8 bIndirect = p[1];
+
+    p += 2;
+    if( eOp==SQLITE_UPDATE ){
+      pParse->nUpdate++;
+      if( pParse->bPatchset==0 ){
+        rc = fuzzParseRecord(&p, pEnd, pParse, 0);
+      }
+    }else if( eOp!=SQLITE_INSERT && eOp!=SQLITE_DELETE ){
+      rc = fuzzCorrupt();
+    }
+    if( rc==SQLITE_OK ){
+      int bPkOnly = (eOp==SQLITE_DELETE && pParse->bPatchset);
+      rc = fuzzParseRecord(&p, pEnd, pParse, bPkOnly);
+    }
+    pGrp->nChange++;
+    pParse->nChange++;
+  }
+  pGrp->szChange = p - pGrp->aChange;
+
+  *ppData = p;
+  return rc;
+}
+
+/*
+** Parse the changeset stored in buffer pChangeset (nChangeset bytes in
+** size). If successful, write the results into (*pParse) and return
+** SQLITE_OK. Or, if an error occurs, return an SQLite error code. The
+** final state of (*pParse) is undefined in this case.
+*/
+static int fuzzParseChangeset(
+  u8 *pChangeset,                 /* Buffer containing changeset */
+  int nChangeset,                 /* Size of buffer in bytes */
+  FuzzChangeset *pParse           /* OUT: Results of parse */
+){
+  u8 *pEnd = &pChangeset[nChangeset];
+  u8 *p = pChangeset;
+  int rc = SQLITE_OK;
+
+  memset(pParse, 0, sizeof(FuzzChangeset));
+  if( nChangeset>0 ){
+    pParse->bPatchset = (pChangeset[0]=='P');
+  }
+
+  while( rc==SQLITE_OK && p<pEnd ){
+    FuzzChangesetGroup *pGrp = 0;
+
+    /* Read a table-header from the changeset */
+    rc = fuzzParseHeader(pParse, &p, pEnd, &pGrp);
+    assert( (rc==SQLITE_OK)==(pGrp!=0) );
+
+    /* If the table-header was successfully parsed, add the new change-group
+    ** to the array and parse the associated changes. */
+    if( rc==SQLITE_OK ){
+      FuzzChangesetGroup **apNew = (FuzzChangesetGroup**)sqlite3_realloc64(
+          pParse->apGroup, sizeof(FuzzChangesetGroup*)*(pParse->nGroup+1)
+      );
+      if( apNew==0 ){
+        rc = SQLITE_NOMEM;
+      }else{
+        apNew[pParse->nGroup] = pGrp;
+        pParse->apGroup = apNew;
+        pParse->nGroup++;
+      }
+      rc = fuzzParseChanges(&p, pEnd, pParse);
+    }
+  }
+
+  return rc;
+}
+
+/*
+** When this function is called, (*ppRec) points to the first byte of
+** a record that is part of change-group pGrp. This function attempts
+** to output a human-readable version of the record to stdout and advance
+** (*ppRec) to point to the first byte past the end of the record before
+** returning. If successful, SQLITE_OK is returned. Otherwise, an SQLite
+** error code.
+**
+** If parameter bPkOnly is non-zero, then all non-primary-key fields have
+** been omitted from the record. This occurs for records that are part
+** of DELETE changes in patchsets.
+*/
+static int fuzzPrintRecord(FuzzChangesetGroup *pGrp, u8 **ppRec, int bPKOnly){
+  int rc = SQLITE_OK;
+  u8 *p = *ppRec;
+  int i;
+  const char *zPre = " (";
+
+  for(i=0; i<pGrp->nCol; i++){
+    if( bPKOnly==0 || pGrp->aPK[i] ){
+      u8 eType = p++[0];
+      switch( eType ){
+        case 0x00:                    /* undefined */
+          printf("%sn/a", zPre);
+          break;
+
+        case 0x01: {                  /* integer */
+          sqlite3_int64 iVal = 0;
+          iVal = fuzzGetI64(p);
+          printf("%s%lld", zPre, iVal);
+          p += 8;
+          break;
+        }
+
+        case 0x02: {                  /* real */
+          sqlite3_int64 iVal = 0;
+          double fVal = 0.0;
+          iVal = fuzzGetI64(p);
+          memcpy(&fVal, &iVal, 8);
+          printf("%s%f", zPre, fVal);
+          p += 8;
+          break;
+        }
+
+        case 0x03:                    /* text */
+        case 0x04: {                  /* blob */
+          int nTxt;
+          p += fuzzGetVarint(p, &nTxt);
+          printf("%s%s", zPre, eType==0x03 ? "'" : "X'");
+          for(i=0; i<nTxt; i++){
+            if( eType==0x03 ){
+              printf("%c", p[i]);
+            }else{
+              char aHex[16] = {'0', '1', '2', '3', '4', '5', '6', '7',
+                               '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'
+              };
+              printf("%c", aHex[ p[i]>>4 ]);
+              printf("%c", aHex[ p[i] & 0x0F ]);
+            }
+          }
+          printf("'");
+          p += nTxt;
+          break;
+        }
+
+        case 0x05:                    /* null */
+          printf("%sNULL", zPre);
+          break;
+      }
+      zPre = ", ";
+    }
+  }
+  printf(")");
+
+  *ppRec = p;
+  return rc;
+}
+
+/*
+** Print a human-readable version of the table-header and all changes in the
+** change-group passed as the second argument.
+*/
+static void fuzzPrintGroup(FuzzChangeset *pParse, FuzzChangesetGroup *pGrp){
+  int i;
+  u8 *p;
+
+  /* The table header */
+  printf("TABLE:  %s nCol=%d aPK=", pGrp->zTab, pGrp->nCol);
+  for(i=0; i<pGrp->nCol; i++){
+    printf("%d", (int)pGrp->aPK[i]);
+  }
+  printf("\n");
+
+  /* The array of changes */
+  p = pGrp->aChange;
+  for(i=0; i<pGrp->nChange; i++){
+    u8 eType = p[0];
+    u8 bIndirect = p[1];
+    printf("%s (ind=%d):",
+        (eType==SQLITE_INSERT) ? "INSERT" :
+        (eType==SQLITE_DELETE ? "DELETE" : "UPDATE"),
+        bIndirect
+    );
+    p += 2;
+
+    if( pParse->bPatchset==0 && eType==SQLITE_UPDATE ){
+      fuzzPrintRecord(pGrp, &p, 0);
+    }
+    fuzzPrintRecord(pGrp, &p, eType==SQLITE_DELETE && pParse->bPatchset);
+    printf("\n");
+  }
+}
+
+/*
+** Initialize the object passed as the second parameter with details
+** of the change that will be attempted (type of change, to which part of the
+** changeset it applies etc.). If successful, return SQLITE_OK. Or, if an
+** error occurs, return an SQLite error code. 
+**
+** If a negative value is returned, then the selected change would have
+** produced a non-well-formed changeset. In this case the caller should
+** call this function again.
+*/
+static int fuzzSelectChange(FuzzChangeset *pParse, FuzzChange *pChange){
+  int iSub;
+
+  memset(pChange, 0, sizeof(FuzzChange));
+  pChange->eType = fuzzRandomInt(FUZZ_COLUMN_DEL) + 1;
+
+  assert( pChange->eType==FUZZ_VALUE_SUB
+       || pChange->eType==FUZZ_VALUE_MOD
+       || pChange->eType==FUZZ_VALUE_RND
+       || pChange->eType==FUZZ_CHANGE_DUP
+       || pChange->eType==FUZZ_CHANGE_DEL
+       || pChange->eType==FUZZ_CHANGE_TYPE
+       || pChange->eType==FUZZ_CHANGE_FIELD
+       || pChange->eType==FUZZ_CHANGE_INDIRECT
+       || pChange->eType==FUZZ_GROUP_DUP
+       || pChange->eType==FUZZ_GROUP_DEL
+       || pChange->eType==FUZZ_GROUP_SWAP
+       || pChange->eType==FUZZ_COLUMN_ADD
+       || pChange->eType==FUZZ_COLUMN_ADDPK
+       || pChange->eType==FUZZ_COLUMN_DEL
+  );
+
+  pChange->iGroup = fuzzRandomInt(pParse->nGroup);
+  pChange->iChange = fuzzRandomInt(pParse->nChange);
+  if( pChange->eType==FUZZ_CHANGE_FIELD ){
+    if( pParse->nUpdate==0 ) return -1;
+    pChange->iChange = fuzzRandomInt(pParse->nUpdate);
+  }
+
+  pChange->iDelete = -1;
+  if( pChange->eType==FUZZ_COLUMN_DEL ){
+    FuzzChangesetGroup *pGrp = pParse->apGroup[pChange->iGroup];
+    int i;
+    pChange->iDelete = fuzzRandomInt(pGrp->nCol);
+    for(i=pGrp->nCol-1; i>=0; i--){
+      if( pGrp->aPK[i] && pChange->iDelete!=i ) break;
+    }
+    if( i<0 ) return -1;
+  }
+
+  if( pChange->eType==FUZZ_GROUP_SWAP ){
+    FuzzChangesetGroup *pGrp;
+    int iGrp = pChange->iGroup;
+    if( pParse->nGroup==1 ) return -1;
+    while( iGrp==pChange->iGroup ){
+      iGrp = fuzzRandomInt(pParse->nGroup);
+    }
+    pGrp = pParse->apGroup[pChange->iGroup];
+    pParse->apGroup[pChange->iGroup] = pParse->apGroup[iGrp];
+    pParse->apGroup[iGrp] = pGrp;
+  }
+
+  if( pChange->eType==FUZZ_VALUE_SUB 
+   || pChange->eType==FUZZ_VALUE_MOD 
+   || pChange->eType==FUZZ_VALUE_RND 
+  ){
+    iSub = fuzzRandomInt(pParse->nVal);
+    pChange->pSub1 = pParse->apVal[iSub];
+    if( pChange->eType==FUZZ_VALUE_SUB ){
+      iSub = fuzzRandomInt(pParse->nVal);
+      pChange->pSub2 = pParse->apVal[iSub];
+    }else{
+      pChange->pSub2 = pChange->aSub;
+    }
+
+    if( pChange->eType==FUZZ_VALUE_RND ){
+      pChange->aSub[0] = (u8)(fuzzRandomInt(5) + 1);
+      switch( pChange->aSub[0] ){
+        case 0x01: {                  /* integer */
+          u64 iVal = fuzzRandomU64();
+          fuzzPutU64(&pChange->aSub[1], iVal);
+          break;
+        }
+
+        case 0x02: {                  /* real */
+          u64 iVal1 = fuzzRandomU64();
+          u64 iVal2 = fuzzRandomU64();
+          double d = (double)iVal1 / (double)iVal2;
+          memcpy(&iVal1, &d, sizeof(iVal1));
+          fuzzPutU64(&pChange->aSub[1], iVal1);
+          break;
+        }
+
+        case 0x03:                    /* text */
+        case 0x04: {                  /* blob */
+          int nByte = fuzzRandomInt(48);
+          pChange->aSub[1] = (u8)nByte;
+          fuzzRandomBlob(nByte, &pChange->aSub[2]);
+          if( pChange->aSub[0]==0x03 ){
+            int i;
+            for(i=0; i<nByte; i++){
+              pChange->aSub[2+i] &= 0x7F;
+            }
+          }
+          break;
+        }
+      }
+    }
+    if( pChange->eType==FUZZ_VALUE_MOD ){
+      int sz;
+      int iMod = -1;
+      fuzzChangeSize(pChange->pSub1, &sz);
+      memcpy(pChange->aSub, pChange->pSub1, sz);
+      switch( pChange->aSub[0] ){
+        case 0x01:
+        case 0x02:
+          iMod = fuzzRandomInt(8) + 1;
+          break;
+
+        case 0x03:                    /* text */
+        case 0x04: {                  /* blob */
+          int nByte;
+          int iFirst = 1 + fuzzGetVarint(&pChange->aSub[1], &nByte);
+          if( nByte>0 ){
+            iMod = fuzzRandomInt(nByte) + iFirst;
+          }
+          break;
+        }
+      }
+
+      if( iMod>=0 ){
+        u8 mask = (1 << fuzzRandomInt(8 - (pChange->aSub[0]==0x03)));
+        pChange->aSub[iMod] ^= mask;
+      }
+    }
+  }
+
+  return SQLITE_OK;
+}
+
+/*
+** Copy a single change from the input to the output changeset, making
+** any modifications specified by (*pFuzz).
+*/
+static int fuzzCopyChange(
+  FuzzChangeset *pParse,
+  int iGrp,
+  FuzzChange *pFuzz,
+  u8 **pp, u8 **ppOut             /* IN/OUT: Input and output pointers */
+){
+  int bPS = pParse->bPatchset;
+  FuzzChangesetGroup *pGrp = pParse->apGroup[iGrp];
+  u8 *p = *pp;
+  u8 *pOut = *ppOut;
+  u8 eType = p++[0];
+  int iRec;
+  int nRec = ((eType==SQLITE_UPDATE && !bPS) ? 2 : 1);
+  int iUndef = -1;
+  int nUpdate = 0;
+
+  u8 eNew = eType;
+  if( pFuzz->iCurrent==pFuzz->iChange && pFuzz->eType==FUZZ_CHANGE_TYPE ){
+    switch( eType ){
+      case SQLITE_INSERT:
+        eNew = SQLITE_DELETE;
+        break;
+      case SQLITE_DELETE:
+        eNew = SQLITE_UPDATE;
+        break;
+      case SQLITE_UPDATE:
+        eNew = SQLITE_INSERT;
+        break;
+    }
+  }
+
+  if( pFuzz->iCurrent==pFuzz->iChange 
+   && pFuzz->eType==FUZZ_CHANGE_FIELD && eType==SQLITE_UPDATE
+  ){
+    int sz;
+    int i;
+    int nDef = 0;
+    u8 *pCsr = p+1;
+    for(i=0; i<pGrp->nCol; i++){
+      if( pCsr[0] && pGrp->aPK[i]==0 ) nDef++;
+      fuzzChangeSize(pCsr, &sz);
+      pCsr += sz;
+    }
+    if( nDef<=1 ) return -1;
+    nDef = fuzzRandomInt(nDef);
+    pCsr = p+1;
+    for(i=0; i<pGrp->nCol; i++){
+      if( pCsr[0] && pGrp->aPK[i]==0 ){
+        if( nDef==0 ) iUndef = i;
+        nDef--;
+      }
+      fuzzChangeSize(pCsr, &sz);
+      pCsr += sz;
+    }
+  }
+
+  /* Copy the change type and indirect flag. If the fuzz mode is
+  ** FUZZ_CHANGE_INDIRECT, and the current change is the one selected for
+  ** fuzzing, invert the indirect flag.  */
+  *(pOut++) = eNew;
+  if( pFuzz->eType==FUZZ_CHANGE_INDIRECT && pFuzz->iCurrent==pFuzz->iChange ){
+    *(pOut++) = !(*(p++));
+  }else{
+    *(pOut++) = *(p++);
+  }
+
+  for(iRec=0; iRec<nRec; iRec++){
+    int i;
+
+    /* Copy the next record from the output to the input.
+    */
+    for(i=0; i<pGrp->nCol; i++){
+      int sz;
+      u8 *pCopy = p;
+
+      /* If this is a patchset, and the input is a DELETE, then the only
+      ** fields present are the PK fields. So, if this is not a PK, skip to 
+      ** the next column. If the current fuzz is FUZZ_CHANGE_TYPE, then
+      ** write a randomly selected value to the output.  */
+      if( bPS && eType==SQLITE_DELETE && pGrp->aPK[i]==0 ){
+        if( eType!=eNew ){
+          assert( eNew==SQLITE_UPDATE );
+          do {
+            pCopy = pParse->apVal[fuzzRandomInt(pParse->nVal)];
+          }while( pCopy[0]==0x00 );
+          fuzzChangeSize(pCopy, &sz);
+          memcpy(pOut, pCopy, sz);
+          pOut += sz;
+        }
+        continue;
+      }
+
+      if( p==pFuzz->pSub1 ){
+        pCopy = pFuzz->pSub2;
+      }else if( p==pFuzz->pSub2 ){
+        pCopy = pFuzz->pSub1;
+      }else if( i==iUndef ){
+        pCopy = (u8*)"\0";
+      }
+
+      if( pCopy[0]==0x00 && eNew!=eType && eType==SQLITE_UPDATE && iRec==0 ){
+        while( pCopy[0]==0x00 ){
+          pCopy = pParse->apVal[fuzzRandomInt(pParse->nVal)];
+        }
+      }else if( p[0]==0x00 && pCopy[0]!=0x00 ){
+        return -1;
+      }else{
+        if( pGrp->aPK[i]>0 && pCopy[0]==0x05 ) return -1;
+      }
+
+      if( (pFuzz->iGroup!=iGrp || i!=pFuzz->iDelete)
+       && (eNew==eType || eType!=SQLITE_UPDATE || iRec==0)
+       && (eNew==eType || eNew!=SQLITE_DELETE || !bPS || pGrp->aPK[i])
+      ){
+        fuzzChangeSize(pCopy, &sz);
+        memcpy(pOut, pCopy, sz);
+        pOut += sz;
+        nUpdate += (pGrp->aPK[i]==0 && pCopy[0]!=0x00);
+      }
+
+      fuzzChangeSize(p, &sz);
+      p += sz;
+    }
+
+    if( iGrp==pFuzz->iGroup ){
+      if( pFuzz->eType==FUZZ_COLUMN_ADD ){
+        if( !bPS || eType!=SQLITE_DELETE ) *(pOut++) = 0x05;
+      }else if( pFuzz->eType==FUZZ_COLUMN_ADDPK ){
+        if( iRec==1 ){
+          *(pOut++) = 0x00;
+        }else{
+          u8 *pNew;
+          int szNew;
+          do {
+            pNew = pParse->apVal[fuzzRandomInt(pParse->nVal)];
+          }while( pNew[0]==0x00 || pNew[0]==0x05 );
+          fuzzChangeSize(pNew, &szNew);
+          memcpy(pOut, pNew, szNew);
+          pOut += szNew;
+        }
+      }
+    }
+  }
+
+  if( pFuzz->iCurrent==pFuzz->iChange ){
+    if( pFuzz->eType==FUZZ_CHANGE_DUP ){
+      int nByte = pOut - (*ppOut);
+      memcpy(pOut, *ppOut, nByte);
+      pOut += nByte;
+    }
+
+    if( pFuzz->eType==FUZZ_CHANGE_DEL ){
+      pOut = *ppOut;
+    }
+    if( eNew!=eType && eNew==SQLITE_UPDATE && !bPS ){
+      int i;
+      u8 *pCsr = (*ppOut) + 2;
+      for(i=0; i<pGrp->nCol; i++){
+        int sz;
+        u8 *pCopy = pCsr;
+        if( pGrp->aPK[i] ) pCopy = (u8*)"\0";
+        fuzzChangeSize(pCopy, &sz);
+        memcpy(pOut, pCopy, sz);
+        pOut += sz;
+        fuzzChangeSize(pCsr, &sz);
+        pCsr += sz;
+      }
+    }
+  }
+
+  /* If a column is being deleted from this group, and this change was an 
+  ** UPDATE, and there are now no non-PK, non-undefined columns in the 
+  ** change, remove it altogether. */
+  if( pFuzz->eType==FUZZ_COLUMN_DEL && pFuzz->iGroup==iGrp 
+   && eType==SQLITE_UPDATE && nUpdate==0 
+  ){
+    pOut = *ppOut;
+  }
+
+  *pp = p;
+  *ppOut = pOut;
+  pFuzz->iCurrent += (eType==SQLITE_UPDATE || pFuzz->eType!=FUZZ_CHANGE_FIELD);
+  return SQLITE_OK;
+}
+
+/*
+** Fuzz the changeset parsed into object pParse and write the results 
+** to file zOut on disk. Argument pBuf points to a buffer that is guaranteed
+** to be large enough to hold the fuzzed changeset.
+**
+** Return SQLITE_OK if successful, or an SQLite error code if an error occurs.
+*/
+static int fuzzDoOneFuzz(
+  const char *zOut,               /* Filename to write modified changeset to */
+  u8 *pBuf,                       /* Buffer to use for modified changeset */
+  FuzzChangeset *pParse           /* Parse of input changeset */
+){
+  FuzzChange change;
+  int iGrp;
+  int rc = -1;
+
+  while( rc<0 ){
+    u8 *pOut = pBuf;
+    rc = fuzzSelectChange(pParse, &change);
+    for(iGrp=0; rc==SQLITE_OK && iGrp<pParse->nGroup; iGrp++){
+      FuzzChangesetGroup *pGrp = pParse->apGroup[iGrp];
+      int nTab = strlen(pGrp->zTab) + 1;
+      int j;
+      int nRep = 1;
+
+      /* If this is the group to delete for a FUZZ_GROUP_DEL change, jump to
+      ** the next group. Unless this is the only group in the changeset - in
+      ** that case this change cannot be applied.
+      **
+      ** Or, if this is a FUZZ_GROUP_DUP, set nRep to 2 to output two
+      ** copies of the group. */
+      if( change.iGroup==iGrp ){
+        if( change.eType==FUZZ_GROUP_DEL ){
+          if( pParse->nGroup==1 ) rc = -1;
+          continue;
+        }
+        else if( change.eType==FUZZ_GROUP_DUP ){
+          nRep = 2;
+        }
+      }
+
+      for(j=0; j<nRep; j++){
+        int i;
+        u8 *pSaved;
+        u8 *p = pGrp->aChange;
+        int nCol = pGrp->nCol;
+        int iPKDel = 0;
+        if( iGrp==change.iGroup ){
+          if( change.eType==FUZZ_COLUMN_ADD 
+           || change.eType==FUZZ_COLUMN_ADDPK 
+          ){
+            nCol++;
+          }else if( change.eType==FUZZ_COLUMN_DEL ){
+            nCol--;
+            iPKDel = pGrp->aPK[change.iDelete];
+          }
+        }
+
+        /* Output a table header */
+        pOut++[0] = pParse->bPatchset ? 'P' : 'T';
+        pOut += fuzzPutVarint(pOut, nCol);
+
+        for(i=0; i<pGrp->nCol; i++){
+          if( iGrp!=change.iGroup || i!=change.iDelete ){
+            u8 v = pGrp->aPK[i];
+            if( iPKDel && v>iPKDel ) v--;
+            *(pOut++) = v;
+          }
+        }
+        if( nCol>pGrp->nCol ){
+          if( change.eType==FUZZ_COLUMN_ADD ){
+            *(pOut++) = 0x00;
+          }else{
+            u8 max = 0;
+            for(i=0; i<pGrp->nCol; i++){
+              if( pGrp->aPK[i]>max ) max = pGrp->aPK[i];
+            }
+            *(pOut++) = max+1;
+          }
+        }
+        memcpy(pOut, pGrp->zTab, nTab);
+        pOut += nTab;
+
+        /* Output the change array. */
+        pSaved = pOut;
+        for(i=0; rc==SQLITE_OK && i<pGrp->nChange; i++){
+          rc = fuzzCopyChange(pParse, iGrp, &change, &p, &pOut);
+        }
+        if( pOut==pSaved ) rc = -1;
+      }
+    }
+    if( rc==SQLITE_OK ){
+      fuzzWriteFile(zOut, pBuf, pOut-pBuf);
+    }
+  }
+
+  return rc;
+}
+
+int main(int argc, char **argv){
+  int nRepeat = 0;                /* Number of output files */
+  int iSeed = 0;                  /* Value of PRNG seed */
+  const char *zInput;             /* Name of input file */
+  void *pChangeset = 0;           /* Input changeset */
+  int nChangeset = 0;             /* Size of input changeset in bytes */
+  int i;                          /* Current output file */
+  FuzzChangeset changeset;        /* Partially parsed changeset */
+  int rc;
+  u8 *pBuf = 0;
+
+  if( argc!=4 && argc!=2 ) usage(argv[0]);
+  zInput = argv[1];
+
+  fuzzReadFile(zInput, &nChangeset, &pChangeset);
+  rc = fuzzParseChangeset(pChangeset, nChangeset, &changeset);
+
+  if( rc==SQLITE_OK ){
+    if( argc==2 ){
+      for(i=0; i<changeset.nGroup; i++){
+        fuzzPrintGroup(&changeset, changeset.apGroup[i]);
+      }
+    }else{
+      pBuf = (u8*)fuzzMalloc((sqlite3_int64)nChangeset*2 + 1024);
+      if( pBuf==0 ){
+        rc = SQLITE_NOMEM;
+      }else{
+        iSeed = atoi(argv[2]);
+        nRepeat = atoi(argv[3]);
+        fuzzRandomSeed((unsigned int)iSeed);
+        for(i=0; rc==SQLITE_OK && i<nRepeat; i++){
+          char *zOut = sqlite3_mprintf("%s-%d", zInput, i);
+          rc = fuzzDoOneFuzz(zOut, pBuf, &changeset);
+          sqlite3_free(zOut);
+        }
+        fuzzFree(pBuf);
+      }
+    }
+  }
+
+  if( rc!=SQLITE_OK ){
+    fprintf(stderr, "error while processing changeset: %d\n", rc);
+  }
+
+  return rc;
+}
diff --git a/ext/session/changesetfuzz1.test b/ext/session/changesetfuzz1.test
new file mode 100644
index 0000000000000000000000000000000000000000..d77fd53b9a677726405eb76e4aca2ef461d90a72
--- /dev/null
+++ b/ext/session/changesetfuzz1.test
@@ -0,0 +1,83 @@
+# 2018 November 08
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] session_common.tcl]
+source $testdir/tester.tcl
+ifcapable !session {finish_test; return}
+set testprefix changesetfuzz1
+
+
+set CF [test_find_binary changesetfuzz]
+if {$CF==""} {
+  finish_test
+  return
+}
+
+proc writefile {zFile data} {
+  set fd [open $zFile w]
+  fconfigure $fd -translation binary
+  puts -nonewline $fd $data
+  close $fd
+}
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b, c, d, PRIMARY KEY(c, d));
+  CREATE TABLE t2(a INTEGER PRIMARY KEY, b, c);
+
+  INSERT INTO t1 VALUES ('one', 'two', 'three', 'four'), 
+                        ('five', 'six', 'seven', 'eight'), 
+                        ('nine', 'ten', 'eleven', 'twelve');
+  INSERT INTO t2 VALUES (1, 2, 3), (4, 5, 6), (7, 8, 9);
+}
+
+set C [changeset_from_sql {
+  INSERT INTO t2 VALUES(10, 11, 12);
+  DELETE FROM t2 WHERE a=1;
+  UPDATE t1 SET b='forty-five' WHERE a='one';
+  UPDATE t1 SET a='twenty-nine', b='seventy' WHERE a='five';
+}]
+writefile c1.changeset $C
+
+do_test 1.1 {
+  for {set j 0} {$j < 200} {incr j} {
+    forcecopy c1.changeset input.changeset
+    for {set i 0} {$i < 6} {incr i} {
+      exec $CF input.changeset $i 1
+      exec $CF input.changeset-0
+      forcecopy input.changeset-0 input.changeset
+    }
+  }
+} {}
+
+set P [patchset_from_sql {
+  INSERT INTO t2 VALUES(13, 14, 15);
+  DELETE FROM t2 WHERE a=4;
+  UPDATE t1 SET b='thirteen' WHERE a='one';
+  UPDATE t1 SET a='ninety-seven', b='twenty' WHERE a='five';
+}]
+writefile p1.patchset $P
+do_test 1.2 {
+  for {set j 0} {$j < 200} {incr j} {
+    forcecopy p1.patchset input.patchset
+    for {set i 0} {$i < 6} {incr i} {
+      exec $CF input.patchset $i 1
+      exec $CF input.patchset-0
+      forcecopy input.patchset-0 input.patchset
+    }
+  }
+} {}
+
+
+finish_test
diff --git a/ext/session/session1.test b/ext/session/session1.test
new file mode 100644
index 0000000000000000000000000000000000000000..bcd7b03d5c8dc1ab7b4273e55fd06ff86facd864
--- /dev/null
+++ b/ext/session/session1.test
@@ -0,0 +1,689 @@
+# 2011 March 07
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] session_common.tcl]
+source $testdir/tester.tcl
+ifcapable !session {finish_test; return}
+
+set testprefix session1
+
+# Run all tests in this file twice. Once with "WITHOUT ROWID", and once
+# with regular rowid tables.
+#
+foreach {tn trailing} {
+  1 ""
+  2 " WITHOUT ROWID "
+} {
+eval [string map [list %WR% $trailing] {
+
+db close
+forcedelete test.db test.db2
+reset_db
+
+do_execsql_test $tn.1.0 {
+  CREATE TABLE t1(x PRIMARY KEY, y) %WR%;
+  INSERT INTO t1 VALUES('abc', 'def');
+}
+
+#-------------------------------------------------------------------------
+# Test creating, attaching tables to and deleting session objects.
+#
+do_test $tn.1.1 { sqlite3session S db main } {S}
+do_test $tn.1.2 { S delete } {}
+do_test $tn.1.3 { sqlite3session S db main } {S}
+do_test $tn.1.4 { S attach t1 } {}
+do_test $tn.1.5 { S delete } {}
+do_test $tn.1.6 { sqlite3session S db main } {S}
+do_test $tn.1.7 { S attach t1 ; S attach t2 ; S attach t3 } {}
+do_test $tn.1.8 { S attach t1 ; S attach t2 ; S attach t3 } {}
+do_test $tn.1.9 { S delete } {}
+do_test $tn.1.10 {
+  sqlite3session S db main
+  S attach t1
+  execsql { INSERT INTO t1 VALUES('ghi', 'jkl') }
+} {}
+do_test $tn.1.11 { S delete } {}
+if {$tn==1} {
+  do_test $tn.1.12 {
+    sqlite3session S db main
+    S attach t1
+    execsql { INSERT INTO t1 VALUES('mno', 'pqr') }
+    execsql { UPDATE t1 SET x = 111 WHERE rowid = 1 }
+    execsql { DELETE FROM t1 WHERE rowid = 2 }
+  } {}
+  do_test $tn.1.13 {
+    S changeset
+    S delete
+  } {}
+}
+
+#-------------------------------------------------------------------------
+# Simple changeset tests. Also test the sqlite3changeset_invert() 
+# function.
+#
+do_test $tn.2.1.1 {
+  execsql { DELETE FROM t1 }
+  sqlite3session S db main
+  S attach t1
+  execsql { INSERT INTO t1 VALUES(1, 'Sukhothai') }
+  execsql { INSERT INTO t1 VALUES(2, 'Ayutthaya') }
+  execsql { INSERT INTO t1 VALUES(3, 'Thonburi') }
+} {}
+do_changeset_test $tn.2.1.2 S {
+  {INSERT t1 0 X. {} {i 1 t Sukhothai}}
+  {INSERT t1 0 X. {} {i 2 t Ayutthaya}}
+  {INSERT t1 0 X. {} {i 3 t Thonburi}}
+}
+do_changeset_invert_test $tn.2.1.3 S {
+  {DELETE t1 0 X. {i 1 t Sukhothai} {}}
+  {DELETE t1 0 X. {i 2 t Ayutthaya} {}}
+  {DELETE t1 0 X. {i 3 t Thonburi} {}}
+}
+do_test $tn.2.1.4 { S delete } {}
+
+do_test $tn.2.2.1 {
+  sqlite3session S db main
+  S attach t1
+  execsql { DELETE FROM t1 WHERE 1 }
+} {}
+do_changeset_test $tn.2.2.2 S {
+  {DELETE t1 0 X. {i 1 t Sukhothai} {}}
+  {DELETE t1 0 X. {i 2 t Ayutthaya} {}}
+  {DELETE t1 0 X. {i 3 t Thonburi} {}}
+}
+do_changeset_invert_test $tn.2.2.3 S {
+  {INSERT t1 0 X. {} {i 1 t Sukhothai}}
+  {INSERT t1 0 X. {} {i 2 t Ayutthaya}}
+  {INSERT t1 0 X. {} {i 3 t Thonburi}}
+}
+do_test $tn.2.2.4 { S delete } {}
+
+do_test $tn.2.3.1 {
+  execsql { DELETE FROM t1 }
+  sqlite3session S db main
+  execsql { INSERT INTO t1 VALUES(1, 'Sukhothai') }
+  execsql { INSERT INTO t1 VALUES(2, 'Ayutthaya') }
+  execsql { INSERT INTO t1 VALUES(3, 'Thonburi') }
+  S attach t1
+  execsql { 
+    UPDATE t1 SET x = 10 WHERE x = 1;
+    UPDATE t1 SET y = 'Surin' WHERE x = 2;
+    UPDATE t1 SET x = 20, y = 'Thapae' WHERE x = 3;
+  }
+} {}
+
+do_changeset_test $tn.2.3.2 S {
+  {INSERT t1 0 X. {} {i 10 t Sukhothai}} 
+  {DELETE t1 0 X. {i 1 t Sukhothai} {}} 
+  {UPDATE t1 0 X. {i 2 t Ayutthaya} {{} {} t Surin}} 
+  {DELETE t1 0 X. {i 3 t Thonburi} {}} 
+  {INSERT t1 0 X. {} {i 20 t Thapae}} 
+}
+
+do_changeset_invert_test $tn.2.3.3 S {
+  {DELETE t1 0 X. {i 10 t Sukhothai} {}} 
+  {INSERT t1 0 X. {} {i 1 t Sukhothai}} 
+  {UPDATE t1 0 X. {i 2 t Surin} {{} {} t Ayutthaya}} 
+  {INSERT t1 0 X. {} {i 3 t Thonburi}} 
+  {DELETE t1 0 X. {i 20 t Thapae} {}}
+}
+do_test $tn.2.3.4 { S delete } {}
+
+do_test $tn.2.4.1 {
+  sqlite3session S db main
+  S attach t1
+  execsql { INSERT INTO t1 VALUES(100, 'Bangkok') }
+  execsql { DELETE FROM t1 WHERE x = 100 }
+} {}
+do_changeset_test $tn.2.4.2 S {}
+do_changeset_invert_test $tn.2.4.3 S {}
+do_test $tn.2.4.4 { S delete } {}
+
+do_execsql_test $tn.2.5.0 {
+  SELECT * FROM t1 ORDER BY x
+} {
+  2  Surin
+  10 Sukhothai
+  20 Thapae
+}
+
+do_test $tn.2.5.1 {
+  sqlite3session S db main
+  S attach t1
+  execsql { DELETE FROM t1 }
+} {}
+do_changeset_test $tn.2.5.2 S {
+  {DELETE t1 0 X. {i 10 t Sukhothai} {}} 
+  {DELETE t1 0 X. {i 2 t Surin} {}}
+  {DELETE t1 0 X. {i 20 t Thapae} {}}
+}
+do_test $tn.2.5.3 { S delete } {}
+
+#-------------------------------------------------------------------------
+# Test the application of simple changesets. These tests also test that
+# the conflict callback is invoked correctly. For these tests, the 
+# conflict callback always returns OMIT.
+#
+db close
+forcedelete test.db test.db2
+sqlite3 db test.db
+sqlite3 db2 test.db2
+
+proc xConflict {args} { 
+  lappend ::xConflict $args
+  return "" 
+}
+
+proc bgerror {args} { set ::background_error $args }
+
+proc do_conflict_test {tn args} {
+  set O(-tables)    [list]
+  set O(-sql)       [list]
+  set O(-conflicts) [list]
+
+  array set V $args
+  foreach key [array names V] {
+    if {![info exists O($key)]} {error "no such option: $key"}
+  }
+  array set O $args
+
+  sqlite3session S db main
+  foreach t $O(-tables) { S attach $t }
+  execsql $O(-sql)
+  set ::xConflict [list]
+  sqlite3changeset_apply db2 [S changeset] xConflict
+
+  set conflicts [list]
+  foreach c $O(-conflicts) {
+    lappend conflicts $c
+  }
+
+  after 1 {set go 1}
+  vwait go
+
+  uplevel do_test $tn [list { set ::xConflict }] [list $conflicts]
+  S delete
+}
+
+proc do_db2_test {testname sql {result {}}} {
+  uplevel do_test $testname [list "execsql {$sql} db2"] [list [list {*}$result]]
+}
+
+# Test INSERT changesets.
+#
+do_test $tn.3.1.0 {
+  execsql { CREATE TABLE t1(a PRIMARY KEY, b NOT NULL) %WR% } db2
+  execsql { 
+    CREATE TABLE t1(a PRIMARY KEY, b) %WR%;
+    INSERT INTO t1 VALUES(1, 'one');
+    INSERT INTO t1 VALUES(2, 'two');
+  } db 
+} {}
+do_db2_test $tn.3.1.1 "INSERT INTO t1 VALUES(6, 'VI')"
+do_conflict_test $tn.3.1.2 -tables t1 -sql {
+  INSERT INTO t1 VALUES(3, 'three');
+  INSERT INTO t1 VALUES(4, 'four');
+  INSERT INTO t1 VALUES(5, 'five');
+  INSERT INTO t1 VALUES(6, 'six');
+  INSERT INTO t1 VALUES(7, 'seven');
+  INSERT INTO t1 VALUES(8, NULL);
+} -conflicts {
+  {INSERT t1 CONFLICT {i 6 t six} {i 6 t VI}}
+  {INSERT t1 CONSTRAINT {i 8 n {}}}
+}
+
+do_db2_test $tn.3.1.3 "SELECT * FROM t1 ORDER BY a" {
+  3 three 4 four 5 five 6 VI 7 seven
+}
+do_execsql_test $tn.3.1.4 "SELECT * FROM t1" {
+  1 one 2 two 3 three 4 four 5 five 6 six 7 seven 8 {}
+}
+
+# Test DELETE changesets.
+#
+do_execsql_test $tn.3.2.1 {
+  PRAGMA foreign_keys = on;
+  CREATE TABLE t2(a PRIMARY KEY, b)%WR%;
+  CREATE TABLE t3(c, d REFERENCES t2);
+  INSERT INTO t2 VALUES(1, 'one');
+  INSERT INTO t2 VALUES(2, 'two');
+  INSERT INTO t2 VALUES(3, 'three');
+  INSERT INTO t2 VALUES(4, 'four');
+}
+do_db2_test $tn.3.2.2 {
+  PRAGMA foreign_keys = on;
+  CREATE TABLE t2(a PRIMARY KEY, b)%WR%;
+  CREATE TABLE t3(c, d REFERENCES t2);
+  INSERT INTO t2 VALUES(1, 'one');
+  INSERT INTO t2 VALUES(2, 'two');
+  INSERT INTO t2 VALUES(4, 'five');
+  INSERT INTO t3 VALUES('i', 1);
+}
+do_conflict_test $tn.3.2.3 -tables t2 -sql {
+  DELETE FROM t2 WHERE a = 1;
+  DELETE FROM t2 WHERE a = 2;
+  DELETE FROM t2 WHERE a = 3;
+  DELETE FROM t2 WHERE a = 4;
+} -conflicts {
+  {DELETE t2 NOTFOUND {i 3 t three}}
+  {DELETE t2 DATA {i 4 t four} {i 4 t five}}
+  {FOREIGN_KEY 1}
+}
+do_execsql_test $tn.3.2.4 "SELECT * FROM t2" {}
+do_db2_test $tn.3.2.5 "SELECT * FROM t2" {4 five}
+
+# Test UPDATE changesets.
+#
+do_execsql_test $tn.3.3.1 {
+  CREATE TABLE t4(a, b, c, PRIMARY KEY(b, c))%WR%;
+  INSERT INTO t4 VALUES(1, 2, 3);
+  INSERT INTO t4 VALUES(4, 5, 6);
+  INSERT INTO t4 VALUES(7, 8, 9);
+  INSERT INTO t4 VALUES(10, 11, 12);
+}
+do_db2_test $tn.3.3.2 {
+  CREATE TABLE t4(a NOT NULL, b, c, PRIMARY KEY(b, c))%WR%;
+  INSERT INTO t4 VALUES(0, 2, 3);
+  INSERT INTO t4 VALUES(4, 5, 7);
+  INSERT INTO t4 VALUES(7, 8, 9);
+  INSERT INTO t4 VALUES(10, 11, 12);
+}
+do_conflict_test $tn.3.3.3 -tables t4 -sql {
+  UPDATE t4 SET a = -1 WHERE b = 2;
+  UPDATE t4 SET a = -1 WHERE b = 5;
+  UPDATE t4 SET a = NULL WHERE c = 9;
+  UPDATE t4 SET a = 'x' WHERE b = 11;
+} -conflicts {
+  {UPDATE t4 DATA {i 1 i 2 i 3} {i -1 {} {} {} {}} {i 0 i 2 i 3}}
+  {UPDATE t4 NOTFOUND {i 4 i 5 i 6} {i -1 {} {} {} {}}}
+  {UPDATE t4 CONSTRAINT {i 7 i 8 i 9} {n {} {} {} {} {}}}
+}
+do_db2_test $tn.3.3.4 { SELECT * FROM t4 } {0 2 3 4 5 7 7 8 9 x 11 12}
+do_execsql_test $tn.3.3.5 { SELECT * FROM t4 } {-1 2 3 -1 5 6 {} 8 9 x 11 12}
+
+#-------------------------------------------------------------------------
+# This next block of tests verifies that values returned by the conflict
+# handler are intepreted correctly.
+#
+
+proc test_reset {} {
+  db close
+  db2 close
+  forcedelete test.db test.db2
+  sqlite3 db test.db
+  sqlite3 db2 test.db2
+}
+
+proc xConflict {args} {
+  lappend ::xConflict $args
+  return $::conflict_return
+}
+
+foreach {tn2 conflict_return after} {
+  1 OMIT      {1 2 value1   4 5 7       10 x x}
+  2 REPLACE   {1 2 value1   4 5 value2  10 8 9}
+} {
+  test_reset
+
+  do_test $tn.4.$tn2.1 {
+    foreach db {db db2} {
+      execsql { 
+        CREATE TABLE t1(a, b, c, PRIMARY KEY(a))%WR%;
+        INSERT INTO t1 VALUES(1, 2, 3);
+        INSERT INTO t1 VALUES(4, 5, 6);
+        INSERT INTO t1 VALUES(7, 8, 9);
+      } $db
+    }
+    execsql { 
+      REPLACE INTO t1 VALUES(4, 5, 7);
+      REPLACE INTO t1 VALUES(10, 'x', 'x');
+    } db2
+  } {}
+
+  do_conflict_test $tn.4.$tn2.2 -tables t1 -sql {
+    UPDATE t1 SET c = 'value1' WHERE a = 1;       -- no conflict
+    UPDATE t1 SET c = 'value2' WHERE a = 4;       -- DATA conflict
+    UPDATE t1 SET a = 10 WHERE a = 7;             -- CONFLICT conflict
+  } -conflicts {
+    {INSERT t1 CONFLICT {i 10 i 8 i 9} {i 10 t x t x}}
+    {UPDATE t1 DATA {i 4 {} {} i 6} {{} {} {} {} t value2} {i 4 i 5 i 7}}
+  }
+
+  do_db2_test $tn.4.$tn2.3 "SELECT * FROM t1 ORDER BY a" $after
+}
+
+foreach {tn2 conflict_return} {
+  1 OMIT
+  2 REPLACE
+} {
+  test_reset
+
+  do_test $tn.5.$tn2.1 {
+    # Create an identical schema in both databases.
+    set schema {
+      CREATE TABLE "'foolish name'"(x, y, z, PRIMARY KEY(x, y))%WR%;
+    }
+    execsql $schema db
+    execsql $schema db2
+
+    # Add some rows to [db2]. These rows will cause conflicts later
+    # on when the changeset from [db] is applied to it.
+    execsql { 
+      INSERT INTO "'foolish name'" VALUES('one', 'one', 'ii');
+      INSERT INTO "'foolish name'" VALUES('one', 'two', 'i');
+      INSERT INTO "'foolish name'" VALUES('two', 'two', 'ii');
+    } db2
+
+  } {}
+
+  do_conflict_test $tn.5.$tn2.2 -tables {{'foolish name'}} -sql {
+    INSERT INTO "'foolish name'" VALUES('one', 'two', 2);
+  } -conflicts {
+    {INSERT {'foolish name'} CONFLICT {t one t two i 2} {t one t two t i}}
+  }
+
+  set res(REPLACE) {one one ii one two 2 two two ii}
+  set res(OMIT)    {one one ii one two i two two ii}
+  do_db2_test $tn.5.$tn2.3 {
+    SELECT * FROM "'foolish name'" ORDER BY x, y
+  } $res($conflict_return)
+
+
+  do_test $tn.5.$tn2.1 {
+    set schema {
+      CREATE TABLE d1("z""z" PRIMARY KEY, y)%WR%;
+      INSERT INTO d1 VALUES(1, 'one');
+      INSERT INTO d1 VALUES(2, 'two');
+    }
+    execsql $schema db
+    execsql $schema db2
+
+    execsql { 
+      UPDATE d1 SET y = 'TWO' WHERE "z""z" = 2;
+    } db2
+
+  } {}
+
+  do_conflict_test $tn.5.$tn2.2 -tables d1 -sql {
+    DELETE FROM d1 WHERE "z""z" = 2;
+  } -conflicts {
+    {DELETE d1 DATA {i 2 t two} {i 2 t TWO}}
+  }
+
+  set res(REPLACE) {1 one}
+  set res(OMIT)    {1 one 2 TWO}
+  do_db2_test $tn.5.$tn2.3 "SELECT * FROM d1" $res($conflict_return)
+}
+
+#-------------------------------------------------------------------------
+# Test that two tables can be monitored by a single session object.
+#
+test_reset
+set schema {
+  CREATE TABLE t1(a COLLATE nocase PRIMARY KEY, b)%WR%;
+  CREATE TABLE t2(a, b PRIMARY KEY)%WR%;
+}
+do_test $tn.6.0 {
+  execsql $schema db
+  execsql $schema db2
+  execsql {
+    INSERT INTO t1 VALUES('a', 'b');
+    INSERT INTO t2 VALUES('a', 'b');
+  } db2
+} {}
+
+set conflict_return ""
+do_conflict_test $tn.6.1 -tables {t1 t2} -sql {
+  INSERT INTO t1 VALUES('1', '2');
+  INSERT INTO t1 VALUES('A', 'B');
+  INSERT INTO t2 VALUES('A', 'B');
+} -conflicts {
+  {INSERT t1 CONFLICT {t A t B} {t a t b}}
+}
+
+do_db2_test $tn.6.2 "SELECT * FROM t1 ORDER BY a" {1 2 a b}
+do_db2_test $tn.6.3 "SELECT * FROM t2 ORDER BY a" {A B a b}
+
+#-------------------------------------------------------------------------
+# Test that session objects are not confused by changes to table in
+# other databases.
+#
+catch { db2 close }
+drop_all_tables
+forcedelete test.db2
+do_iterator_test $tn.7.1 * {
+  ATTACH 'test.db2' AS aux;
+  CREATE TABLE main.t1(x PRIMARY KEY, y)%WR%;
+  CREATE TABLE aux.t1(x PRIMARY KEY, y)%WR%;
+
+  INSERT INTO main.t1 VALUES('one', 1);
+  INSERT INTO main.t1 VALUES('two', 2);
+  INSERT INTO aux.t1 VALUES('three', 3);
+  INSERT INTO aux.t1 VALUES('four', 4);
+} {
+  {INSERT t1 0 X. {} {t two i 2}} 
+  {INSERT t1 0 X. {} {t one i 1}}
+}
+
+#-------------------------------------------------------------------------
+# Test the sqlite3session_isempty() function.
+#
+do_test $tn.8.1 {
+  execsql {
+    CREATE TABLE t5(x PRIMARY KEY, y)%WR%;
+    CREATE TABLE t6(x PRIMARY KEY, y)%WR%;
+    INSERT INTO t5 VALUES('a', 'b');
+    INSERT INTO t6 VALUES('a', 'b');
+  }
+  sqlite3session S db main
+  S attach *
+
+  S isempty
+} {1}
+do_test $tn.8.2 {
+  execsql { DELETE FROM t5 }
+  S isempty
+} {0}
+do_test $tn.8.3 {
+  S delete
+  sqlite3session S db main
+  S attach t5
+  execsql { DELETE FROM t5 }
+  S isempty
+} {1}
+do_test $tn.8.4 { S delete } {}
+
+do_test $tn.8.5 {
+  sqlite3session S db main
+  S attach t5
+  S attach t6
+  execsql { INSERT INTO t5 VALUES(1, 2) }
+  S isempty
+} {0}
+
+do_test $tn.8.6 {
+  S delete
+  sqlite3session S db main
+  S attach t5
+  S attach t6
+  execsql { INSERT INTO t6 VALUES(1, 2) }
+  S isempty
+} {0}
+do_test $tn.8.7 { S delete } {}
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test $tn.9.1 {
+  CREATE TABLE t7(a, b, c, d, e PRIMARY KEY, f, g)%WR%;
+  INSERT INTO t7 VALUES(1, 1, 1, 1, 1, 1, 1);
+}
+do_test $tn.9.2 { 
+  sqlite3session S db main 
+  S attach *
+  execsql { UPDATE t7 SET b=2, d=2 }
+} {}
+do_changeset_test $tn.9.2 S {{UPDATE t7 0 ....X.. {{} {} i 1 {} {} i 1 i 1 {} {} {} {}} {{} {} i 2 {} {} i 2 {} {} {} {} {} {}}}}
+S delete
+catch { db2 close }
+ 
+#-------------------------------------------------------------------------
+# Test a really long table name.
+#
+reset_db
+set tblname [string repeat tblname123 100]
+do_test $tn.10.1.1 {
+  execsql "
+    CREATE TABLE $tblname (a PRIMARY KEY, b)%WR%;
+    INSERT INTO $tblname VALUES('xyz', 'def');
+  "
+  sqlite3session S db main
+  S attach $tblname
+  execsql " 
+    INSERT INTO $tblname VALUES('uvw', 'abc');
+    DELETE FROM $tblname WHERE a = 'xyz';
+  "
+} {}
+do_changeset_test $tn.10.1.2 S "
+  {INSERT $tblname 0 X. {} {t uvw t abc}}
+  {DELETE $tblname 0 X. {t xyz t def} {}}
+"
+do_test $tn.10.1.4 { S delete } {}
+
+#---------------------------------------------------------------
+reset_db
+do_execsql_test $tn.11.1 {
+  CREATE TABLE t1(a, b);
+}
+do_test $tn.11.2 {
+  sqlite3session S db main
+  S attach t1
+  execsql {
+    INSERT INTO t1 VALUES(1, 2);
+  }
+  S changeset
+} {}
+
+S delete
+
+
+#-------------------------------------------------------------------------
+# Test a really long table name.
+#
+reset_db
+set tblname [string repeat tblname123 100]
+do_test $tn.10.1.1 {
+  execsql "
+    CREATE TABLE $tblname (a PRIMARY KEY, b)%WR%;
+    INSERT INTO $tblname VALUES('xyz', 'def');
+  "
+  sqlite3session S db main
+  S attach $tblname
+  execsql " 
+    INSERT INTO $tblname VALUES('uvw', 'abc');
+    DELETE FROM $tblname WHERE a = 'xyz';
+  "
+} {}
+do_changeset_test $tn.10.1.2 S "
+  {INSERT $tblname 0 X. {} {t uvw t abc}}
+  {DELETE $tblname 0 X. {t xyz t def} {}}
+"
+do_test $tn.10.1.4 { S delete } {}
+
+#-------------------------------------------------------------------------
+# Test the effect of updating a column from 0.0 to 0.0.
+#
+reset_db
+do_execsql_test $tn.11.1 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b REAL)%WR%;
+  INSERT INTO t1 VALUES(1, 0.0);
+}
+do_iterator_test $tn.11.2 * {
+  UPDATE t1 SET b = 0.0;
+} {
+}
+
+reset_db
+do_execsql_test $tn.12.1 {
+  CREATE TABLE t1(r INTEGER PRIMARY KEY, a, b)%WR%;
+  CREATE INDEX i1 ON t1(a);
+  INSERT INTO t1 VALUES(1, 1, 1);
+  INSERT INTO t1 VALUES(2, 1, 2);
+  INSERT INTO t1 VALUES(3, 1, 3);
+}
+
+do_iterator_test $tn.12.2 * {
+  UPDATE t1 SET b='one' WHERE a=1;
+} {
+  {UPDATE t1 0 X.. {i 1 {} {} i 1} {{} {} {} {} t one}}
+  {UPDATE t1 0 X.. {i 2 {} {} i 2} {{} {} {} {} t one}}
+  {UPDATE t1 0 X.. {i 3 {} {} i 3} {{} {} {} {} t one}}
+}
+
+#-------------------------------------------------------------------------
+# Test that no savepoint is used if -nosavepoint is specified.
+#
+do_execsql_test $tn.13.1 {
+  CREATE TABLE x1(a INTEGER PRIMARY KEY, b)%WR%;
+}
+do_test $tn.13.2 {
+  execsql BEGIN
+  set C [changeset_from_sql {
+    INSERT INTO x1 VALUES(1, 'one');
+    INSERT INTO x1 VALUES(2, 'two');
+    INSERT INTO x1 VALUES(3, 'three');
+  }]
+  execsql ROLLBACK
+  execsql {
+    INSERT INTO x1 VALUES(1, 'i');
+    INSERT INTO x1 VALUES(2, 'ii');
+    INSERT INTO x1 VALUES(3, 'iii');
+  }
+} {}
+
+proc xConflict {args} {
+  set ret [lindex $::CONFLICT_HANDLERS 0]
+  set ::CONFLICT_HANDLERS [lrange $::CONFLICT_HANDLERS 1 end]
+  set ret
+}
+do_test $tn.13.3 {
+  set CONFLICT_HANDLERS [list REPLACE REPLACE ABORT]
+  execsql BEGIN
+  catch { sqlite3changeset_apply_v2 db $C xConflict } msg
+  execsql {
+    SELECT * FROM x1
+  }
+} {1 i 2 ii 3 iii}
+do_test $tn.13.3 {
+  set CONFLICT_HANDLERS [list REPLACE REPLACE ABORT]
+  execsql ROLLBACK
+  execsql BEGIN
+  catch { sqlite3changeset_apply_v2 -nosavepoint db $C xConflict } msg
+  execsql { SELECT * FROM x1 }
+} {1 one 2 two 3 iii}
+execsql ROLLBACK
+
+do_test $tn.14.1 { sqlite3session_config strm_size -1 } 64
+do_test $tn.14.2 { sqlite3session_config strm_size 65536 } 65536
+do_test $tn.14.3 { sqlite3session_config strm_size 64 } 64
+do_test $tn.14.4 { 
+  list [catch {sqlite3session_config invalid 123} msg] $msg
+} {1 SQLITE_MISUSE}
+
+}]
+}
+
+
+finish_test
diff --git a/ext/session/session2.test b/ext/session/session2.test
new file mode 100644
index 0000000000000000000000000000000000000000..207b98740e06eeddadbc95ad27d1fac6b214bbc6
--- /dev/null
+++ b/ext/session/session2.test
@@ -0,0 +1,639 @@
+# 2011 Mar 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# The focus of this file is testing the session module.
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] session_common.tcl]
+source $testdir/tester.tcl
+ifcapable !session {finish_test; return}
+
+set testprefix session2
+
+proc test_reset {} {
+  catch { db close }
+  catch { db2 close }
+  forcedelete test.db test.db2
+  sqlite3 db test.db
+  sqlite3 db2 test.db2
+}
+
+##########################################################################
+# End of proc definitions. Start of tests.
+##########################################################################
+
+test_reset
+do_execsql_test 1.0 { 
+  CREATE TABLE t1(a INT PRIMARY KEY, b);
+  INSERT INTO t1 VALUES('i', 'one');
+}
+do_iterator_test 1.1 t1 {
+  DELETE FROM t1 WHERE a = 'i';
+  INSERT INTO t1 VALUES('ii', 'two');
+} {
+  {DELETE t1 0 X. {t i t one} {}} 
+  {INSERT t1 0 X. {} {t ii t two}}
+}
+
+do_iterator_test 1.2 t1 {
+  INSERT INTO t1 VALUES(1.5, 99.9)
+} {
+  {INSERT t1 0 X. {} {f 1.5 f 99.9}}
+}
+
+do_iterator_test 1.3 t1 {
+  UPDATE t1 SET b = 100.1 WHERE a = 1.5;
+  UPDATE t1 SET b = 99.9 WHERE a = 1.5;
+} { }
+
+do_iterator_test 1.4 t1 {
+  UPDATE t1 SET b = 100.1 WHERE a = 1.5;
+} {
+  {UPDATE t1 0 X. {f 1.5 f 99.9} {{} {} f 100.1}}
+}
+
+
+# Execute each of the following blocks of SQL on database [db1]. Collect
+# changes using a session object. Apply the resulting changeset to
+# database [db2]. Then check that the contents of the two databases are
+# identical.
+#
+
+set set_of_tests {
+  1 { INSERT INTO %T1% VALUES(1, 2) } 
+
+  2 {
+    INSERT INTO %T2% VALUES(1, NULL);
+    INSERT INTO %T2% VALUES(2, NULL);
+    INSERT INTO %T2% VALUES(3, NULL);
+    DELETE FROM %T2% WHERE a = 2;
+    INSERT INTO %T2% VALUES(4, NULL);
+    UPDATE %T2% SET b=0 WHERE b=1;
+  } 
+
+  3 { INSERT INTO %T3% SELECT *, NULL FROM %T2% }
+
+  4 {
+    INSERT INTO %T3% SELECT a||a, b||b, NULL FROM %T3%;
+    DELETE FROM %T3% WHERE rowid%2;
+  }
+
+  5 { UPDATE %T3% SET c = a||b }
+
+  6 { UPDATE %T1% SET a = 32 }
+
+  7 { 
+    INSERT INTO %T1% SELECT randomblob(32), randomblob(32) FROM %T1%; 
+    INSERT INTO %T1% SELECT randomblob(32), randomblob(32) FROM %T1%; 
+    INSERT INTO %T1% SELECT randomblob(32), randomblob(32) FROM %T1%; 
+    INSERT INTO %T1% SELECT randomblob(32), randomblob(32) FROM %T1%; 
+    INSERT INTO %T1% SELECT randomblob(32), randomblob(32) FROM %T1%; 
+    INSERT INTO %T1% SELECT randomblob(32), randomblob(32) FROM %T1%; 
+    INSERT INTO %T1% SELECT randomblob(32), randomblob(32) FROM %T1%; 
+    INSERT INTO %T1% SELECT randomblob(32), randomblob(32) FROM %T1%; 
+    INSERT INTO %T1% SELECT randomblob(32), randomblob(32) FROM %T1%; 
+    INSERT INTO %T1% SELECT randomblob(32), randomblob(32) FROM %T1%; 
+    INSERT INTO %T1% SELECT randomblob(32), randomblob(32) FROM %T1%; 
+    DELETE FROM %T1% WHERE (rowid%3)==0;
+  }
+
+  8 {
+    BEGIN;
+      INSERT INTO %T1% SELECT randomblob(32), randomblob(32) FROM %T1%;
+    ROLLBACK;
+  }
+  9 {
+    BEGIN;
+      UPDATE %T1% SET b = 'xxx';
+    ROLLBACK;
+  }
+  10 {
+    BEGIN;
+      DELETE FROM %T1% WHERE 1;
+    ROLLBACK;
+  }
+  11 {
+    INSERT INTO %T1% VALUES(randomblob(21000), randomblob(0));
+    INSERT INTO %T1% VALUES(1.5, 1.5);
+    INSERT INTO %T1% VALUES(4.56, -99.999999999999999999999);
+  }
+  12 {
+    INSERT INTO %T2% VALUES(NULL, NULL);
+  }
+
+  13 {
+    DELETE FROM %T1% WHERE 1;
+
+    -- Insert many rows with real primary keys. Enough to force the session
+    -- objects hash table to resize. 
+    INSERT INTO %T1% VALUES(0.1, 0.1);
+    INSERT INTO %T1% SELECT a+0.1, b+0.1 FROM %T1%;
+    INSERT INTO %T1% SELECT a+0.2, b+0.2 FROM %T1%;
+    INSERT INTO %T1% SELECT a+0.4, b+0.4 FROM %T1%;
+    INSERT INTO %T1% SELECT a+0.8, b+0.8 FROM %T1%;
+    INSERT INTO %T1% SELECT a+1.6, b+1.6 FROM %T1%;
+    INSERT INTO %T1% SELECT a+3.2, b+3.2 FROM %T1%;
+    INSERT INTO %T1% SELECT a+6.4, b+6.4 FROM %T1%;
+    INSERT INTO %T1% SELECT a+12.8, b+12.8 FROM %T1%;
+    INSERT INTO %T1% SELECT a+25.6, b+25.6 FROM %T1%;
+    INSERT INTO %T1% SELECT a+51.2, b+51.2 FROM %T1%;
+    INSERT INTO %T1% SELECT a+102.4, b+102.4 FROM %T1%;
+    INSERT INTO %T1% SELECT a+204.8, b+204.8 FROM %T1%;
+  }
+
+  14 {
+    DELETE FROM %T1% WHERE 1;
+  }
+
+  15 {
+    INSERT INTO %T1% VALUES(1, 1);
+    INSERT INTO %T1% SELECT a+2, b+2 FROM %T1%;
+    INSERT INTO %T1% SELECT a+4, b+4 FROM %T1%;
+    INSERT INTO %T1% SELECT a+8, b+8 FROM %T1%;
+    INSERT INTO %T1% SELECT a+256, b+256 FROM %T1%;
+  }
+
+  16 {
+    INSERT INTO %T4% VALUES('abc', 'def');
+    INSERT INTO %T4% VALUES('def', 'abc');
+  }
+  17 { UPDATE %T4% SET b = 1 }
+
+  18 { DELETE FROM %T4% WHERE 1 }
+
+  19 { 
+    INSERT INTO t1 VALUES('', '');
+    INSERT INTO t1 VALUES(X'', X'');
+  }
+  20 { 
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES('', NULL);
+  }
+}
+
+test_reset
+do_common_sql {
+  CREATE TABLE t1(a int PRIMARY KEY, b);
+  CREATE TABLE t2(a, b INTEGER PRIMARY KEY);
+  CREATE TABLE t3(a, b, c, PRIMARY KEY(a, b));
+  CREATE TABLE t4(a, b, PRIMARY KEY(b, a));
+}
+
+foreach {tn sql} [string map {%T1% t1 %T2% t2 %T3% t3 %T4% t4} $set_of_tests] {
+  do_then_apply_sql -ignorenoop $sql
+  do_test 2.$tn { compare_db db db2 } {}
+}
+
+# The following block of tests is similar to the last, except that the
+# session object is recording changes made to an attached database. The
+# main database contains a table of the same name as the table being
+# modified within the attached db.
+#
+test_reset
+forcedelete test.db3
+sqlite3 db3 test.db3
+do_test 3.0 {
+  execsql {
+    ATTACH 'test.db3' AS 'aux';
+    CREATE TABLE t1(a int, b PRIMARY KEY);
+    CREATE TABLE t2(x, y, z);
+    CREATE TABLE t3(a);
+
+    CREATE TABLE aux.t1(a int PRIMARY KEY, b);
+    CREATE TABLE aux.t2(a, b INTEGER PRIMARY KEY);
+    CREATE TABLE aux.t3(a, b, c, PRIMARY KEY(a, b));
+    CREATE TABLE aux.t4(a, b, PRIMARY KEY(b, a));
+  }
+  execsql {
+    CREATE TABLE t1(a int PRIMARY KEY, b);
+    CREATE TABLE t2(a, b INTEGER PRIMARY KEY);
+    CREATE TABLE t3(a, b, c, PRIMARY KEY(a, b));
+    CREATE TABLE t4(a, b, PRIMARY KEY(b, a));
+  } db2
+} {}
+
+proc xTrace {args} { puts $args }
+
+foreach {tn sql} [
+  string map {%T1% aux.t1 %T2% aux.t2 %T3% aux.t3 %T4% aux.t4} $set_of_tests
+] {
+  do_then_apply_sql $sql aux
+  do_test 3.$tn { compare_db db2 db3 } {}
+}
+catch {db3 close}
+
+
+#-------------------------------------------------------------------------
+# The following tests verify that NULL values in primary key columns are
+# handled correctly by the session module.
+#
+test_reset
+do_execsql_test 4.0 {
+  CREATE TABLE t1(a PRIMARY KEY);
+  CREATE TABLE t2(a, b, c, PRIMARY KEY(c, b));
+  CREATE TABLE t3(a, b INTEGER PRIMARY KEY);
+}
+
+foreach {tn sql changeset} {
+  1 {
+    INSERT INTO t1 VALUES(123);
+    INSERT INTO t1 VALUES(NULL);
+    INSERT INTO t1 VALUES(456);
+  } {
+    {INSERT t1 0 X {} {i 456}} 
+    {INSERT t1 0 X {} {i 123}}
+  }
+
+  2 {
+    UPDATE t1 SET a = NULL;
+  } {
+    {DELETE t1 0 X {i 456} {}}
+    {DELETE t1 0 X {i 123} {}}
+  }
+
+  3 { DELETE FROM t1 } { }
+
+  4 { 
+    INSERT INTO t3 VALUES(NULL, NULL)
+  } {
+    {INSERT t3 0 .X {} {n {} i 1}} 
+  }
+
+  5 { INSERT INTO t2 VALUES(1, 2, NULL) }    { }
+  6 { INSERT INTO t2 VALUES(1, NULL, 3) }    { }
+  7 { INSERT INTO t2 VALUES(1, NULL, NULL) } { }
+  8 { INSERT INTO t2 VALUES(1, 2, 3) }    { {INSERT t2 0 .XX {} {i 1 i 2 i 3}} }
+  9 { DELETE FROM t2 WHERE 1 }            { {DELETE t2 0 .XX {i 1 i 2 i 3} {}} }
+
+} {
+  do_iterator_test 4.$tn {t1 t2 t3} $sql $changeset
+}
+
+
+#-------------------------------------------------------------------------
+# Test that if NULL is passed to sqlite3session_attach(), all database
+# tables are attached to the session object.
+#
+test_reset
+do_execsql_test 5.0 {
+  CREATE TABLE t1(a PRIMARY KEY);
+  CREATE TABLE t2(x, y PRIMARY KEY);
+}
+
+foreach {tn sql changeset} {
+  1 { INSERT INTO t1 VALUES(35) }     { {INSERT t1 0 X {} {i 35}} }
+  2 { INSERT INTO t2 VALUES(36, 37) } { {INSERT t2 0 .X {} {i 36 i 37}} }
+  3 { 
+    DELETE FROM t1 WHERE 1;
+    UPDATE t2 SET x = 34;
+  } { 
+    {DELETE t1 0 X {i 35} {}}
+    {UPDATE t2 0 .X {i 36 i 37} {i 34 {} {}}}
+  }
+} {
+  do_iterator_test 5.$tn * $sql $changeset
+}
+
+#-------------------------------------------------------------------------
+# The next block of tests verify that the "indirect" flag is set 
+# correctly within changesets. The indirect flag is set for a change
+# if either of the following are true:
+#
+#   * The sqlite3session_indirect() API has been used to set the session
+#     indirect flag to true, or
+#   * The change was made by a trigger.
+#
+# If the same row is updated more than once during a session, then the 
+# change is considered indirect only if all changes meet the criteria 
+# above.
+#
+test_reset
+db function indirect [list S indirect]
+
+do_execsql_test 6.0 {
+  CREATE TABLE t1(a PRIMARY KEY, b, c);
+
+  CREATE TABLE t2(x PRIMARY KEY, y);
+  CREATE TRIGGER AFTER INSERT ON t2 WHEN new.x%2 BEGIN
+    INSERT INTO t2 VALUES(new.x+1, NULL);
+  END;
+}
+
+do_iterator_test 6.1.1 * {
+  INSERT INTO t1 VALUES(1, 'one', 'i');
+  SELECT indirect(1);
+  INSERT INTO t1 VALUES(2, 'two', 'ii');
+  SELECT indirect(0);
+  INSERT INTO t1 VALUES(3, 'three', 'iii');
+} {
+  {INSERT t1 0 X.. {} {i 1 t one t i}}
+  {INSERT t1 1 X.. {} {i 2 t two t ii}}
+  {INSERT t1 0 X.. {} {i 3 t three t iii}}
+}
+
+do_iterator_test 6.1.2 * {
+  SELECT indirect(1);
+  UPDATE t1 SET c = 'I' WHERE a = 1;
+  SELECT indirect(0);
+} {
+  {UPDATE t1 1 X.. {i 1 {} {} t i} {{} {} {} {} t I}}
+}
+do_iterator_test 6.1.3 * {
+  SELECT indirect(1);
+  UPDATE t1 SET c = '.' WHERE a = 1;
+  SELECT indirect(0);
+  UPDATE t1 SET c = 'o' WHERE a = 1;
+} {
+  {UPDATE t1 0 X.. {i 1 {} {} t I} {{} {} {} {} t o}}
+}
+do_iterator_test 6.1.4 * {
+  SELECT indirect(0);
+  UPDATE t1 SET c = 'x' WHERE a = 1;
+  SELECT indirect(1);
+  UPDATE t1 SET c = 'i' WHERE a = 1;
+} {
+  {UPDATE t1 0 X.. {i 1 {} {} t o} {{} {} {} {} t i}}
+}
+do_iterator_test 6.1.4 * {
+  SELECT indirect(1);
+  UPDATE t1 SET c = 'y' WHERE a = 1;
+  SELECT indirect(1);
+  UPDATE t1 SET c = 'I' WHERE a = 1;
+} {
+  {UPDATE t1 1 X.. {i 1 {} {} t i} {{} {} {} {} t I}}
+}
+
+do_iterator_test 6.1.5 * {
+  INSERT INTO t2 VALUES(1, 'x');
+} {
+  {INSERT t2 0 X. {} {i 1 t x}}
+  {INSERT t2 1 X. {} {i 2 n {}}}
+}
+
+do_iterator_test 6.1.6 * {
+  SELECT indirect(1);
+  INSERT INTO t2 VALUES(3, 'x');
+  SELECT indirect(0);
+  UPDATE t2 SET y = 'y' WHERE x>2;
+} {
+  {INSERT t2 0 X. {} {i 3 t y}}
+  {INSERT t2 0 X. {} {i 4 t y}}
+}
+
+do_iterator_test 6.1.7 * {
+  SELECT indirect(1);
+  DELETE FROM t2 WHERE x = 4;
+  SELECT indirect(0);
+  INSERT INTO t2 VALUES(4, 'new');
+} {
+  {UPDATE t2 0 X. {i 4 t y} {{} {} t new}}
+}
+
+do_iterator_test 6.1.8 * {
+  CREATE TABLE t3(a, b PRIMARY KEY);
+  CREATE TABLE t4(a, b PRIMARY KEY);
+  CREATE TRIGGER t4t AFTER UPDATE ON t4 BEGIN
+    UPDATE t3 SET a = new.a WHERE b = new.b;
+  END;
+
+  SELECT indirect(1);
+  INSERT INTO t3 VALUES('one', 1);
+  INSERT INTO t4 VALUES('one', 1);
+  SELECT indirect(0);
+  UPDATE t4 SET a = 'two' WHERE b = 1;
+} {
+  {INSERT t3 1 .X {} {t two i 1}}
+  {INSERT t4 0 .X {} {t two i 1}} 
+}
+
+sqlite3session S db main
+do_execsql_test 6.2.1 {
+  SELECT indirect(0);
+  SELECT indirect(-1);
+  SELECT indirect(45);
+  SELECT indirect(-100);
+} {0 0 1 1}
+S delete
+
+#-------------------------------------------------------------------------
+# Test that if a conflict-handler that has been passed either NOTFOUND or
+# CONSTRAINT returns REPLACE - the sqlite3changeset_apply() call returns
+# MISUSE and rolls back any changes made so far.
+#
+#   7.1.*: NOTFOUND conflict-callback.
+#   7.2.*: CONSTRAINT conflict-callback.
+#
+proc xConflict {args} {return REPLACE}
+test_reset
+
+do_execsql_test 7.1.1 {
+  CREATE TABLE t1(a PRIMARY KEY, b);
+  INSERT INTO t1 VALUES(1, 'one');
+  INSERT INTO t1 VALUES(2, 'two');
+}
+do_test 7.1.2 {
+  execsql {
+    CREATE TABLE t1(a PRIMARY KEY, b NOT NULL);
+    INSERT INTO t1 VALUES(1, 'one');
+  } db2
+} {}
+do_test 7.1.3 {
+  set changeset [changeset_from_sql {
+    UPDATE t1 SET b = 'five' WHERE a = 1;
+    UPDATE t1 SET b = 'six' WHERE a = 2;
+  }]
+  set x [list]
+  sqlite3session_foreach c $changeset { lappend x $c }
+  set x
+} [list \
+  {UPDATE t1 0 X. {i 1 t one} {{} {} t five}} \
+  {UPDATE t1 0 X. {i 2 t two} {{} {} t six}}  \
+]
+do_test 7.1.4 {
+  list [catch {sqlite3changeset_apply db2 $changeset xConflict} msg] $msg
+} {1 SQLITE_MISUSE}
+do_test 7.1.5 { execsql { SELECT * FROM t1 } db2 } {1 one}
+
+do_test 7.2.1 {
+  set changeset [changeset_from_sql { UPDATE t1 SET b = NULL WHERE a = 1 }]
+
+  set x [list]
+  sqlite3session_foreach c $changeset { lappend x $c }
+  set x
+} [list \
+  {UPDATE t1 0 X. {i 1 t five} {{} {} n {}}} \
+]
+do_test 7.2.2 {
+  list [catch {sqlite3changeset_apply db2 $changeset xConflict} msg] $msg
+} {1 SQLITE_MISUSE}
+do_test 7.2.3 { execsql { SELECT * FROM t1 } db2 } {1 one}
+
+#-------------------------------------------------------------------------
+# Test that if a conflict-handler returns ABORT, application of the 
+# changeset is rolled back and the sqlite3changeset_apply() method returns
+# SQLITE_ABORT.
+#
+# Also test that the same thing happens if a conflict handler returns an
+# unrecognized integer value. Except, in this case SQLITE_MISUSE is returned
+# instead of SQLITE_ABORT.
+#
+foreach {tn conflict_return apply_return} {
+  1    ABORT   SQLITE_ABORT
+  2    567     SQLITE_MISUSE
+} {
+  test_reset
+  proc xConflict {args} [list return $conflict_return]
+
+  do_test 8.$tn.0 {
+    do_common_sql { 
+      CREATE TABLE t1(x, y, PRIMARY KEY(x, y));
+      INSERT INTO t1 VALUES('x', 'y');
+    }
+    execsql { INSERT INTO t1 VALUES('w', 'w') }
+
+    set changeset [changeset_from_sql { DELETE FROM t1 WHERE 1 }]
+
+    set x [list]
+    sqlite3session_foreach c $changeset { lappend x $c }
+    set x
+  } [list \
+    {DELETE t1 0 XX {t w t w} {}} \
+    {DELETE t1 0 XX {t x t y} {}} \
+  ]
+
+  do_test 8.$tn.1 {
+    list [catch {sqlite3changeset_apply db2 $changeset xConflict} msg] $msg
+  } [list 1 $apply_return]
+
+  do_test 8.$tn.2 {
+    execsql {SELECT * FROM t1} db2
+  } {x y}
+}
+
+
+#-------------------------------------------------------------------------
+# Try to cause an infinite loop as follows:
+#
+#   1. Have a changeset insert a row that causes a CONFLICT callback,
+#   2. Have the conflict handler return REPLACE,
+#   3. After the session module deletes the conflicting row, have a trigger
+#      re-insert it.
+#   4. Goto step 1...
+#
+# This doesn't work, as the second invocation of the conflict handler is a
+# CONSTRAINT, not a CONFLICT. There is at most one CONFLICT callback for
+# each change in the changeset.
+#
+test_reset
+proc xConflict {type args} { 
+  if {$type == "CONFLICT"} { return REPLACE }
+  return OMIT
+}
+do_test 9.1 {
+  execsql {
+    CREATE TABLE t1(a PRIMARY KEY, b);
+  }
+  execsql {
+    CREATE TABLE t1(a PRIMARY KEY, b);
+    INSERT INTO t1 VALUES('x', 2);
+    CREATE TRIGGER tr1 AFTER DELETE ON t1 BEGIN
+      INSERT INTO t1 VALUES(old.a, old.b);
+    END;
+  } db2
+} {}
+do_test 9.2 {
+  set changeset [changeset_from_sql { INSERT INTO t1 VALUES('x', 1) }]
+  sqlite3changeset_apply db2 $changeset xConflict
+} {}
+do_test 9.3 {
+  execsql { SELECT * FROM t1 } db2
+} {x 2}
+
+#-------------------------------------------------------------------------
+#
+test_reset
+db function enable [list S enable]
+
+do_common_sql {
+  CREATE TABLE t1(a PRIMARY KEY, b);
+  INSERT INTO t1 VALUES('x', 'X');
+}
+
+do_iterator_test 10.1 t1 {
+  INSERT INTO t1 VALUES('y', 'Y');
+  SELECT enable(0);
+  INSERT INTO t1 VALUES('z', 'Z');
+  SELECT enable(1);
+} {
+  {INSERT t1 0 X. {} {t y t Y}}
+}
+
+sqlite3session S db main
+do_execsql_test 10.2 {
+  SELECT enable(0);
+  SELECT enable(-1);
+  SELECT enable(1);
+  SELECT enable(-1);
+} {0 0 1 1}
+S delete
+
+#-------------------------------------------------------------------------
+test_reset
+do_common_sql {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c, d, e, f);
+  WITH s(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<32
+  )
+  INSERT INTO t1 SELECT NULL, 0, 0, 0, 0, 0 FROM s
+}
+
+do_then_apply_sql -ignorenoop {
+  UPDATE t1 SET                             f=f+1 WHERE a=1;
+  UPDATE t1 SET                      e=e+1        WHERE a=2;
+  UPDATE t1 SET                      e=e+1, f=f+1 WHERE a=3;
+  UPDATE t1 SET               d=d+1               WHERE a=4;
+  UPDATE t1 SET               d=d+1,        f=f+1 WHERE a=5;
+  UPDATE t1 SET               d=d+1, e=e+1        WHERE a=6;
+  UPDATE t1 SET               d=d+1, e=e+1, f=f+1 WHERE a=7;
+  UPDATE t1 SET        c=c+1                      WHERE a=8;
+  UPDATE t1 SET        c=c+1,               f=f+1 WHERE a=9;
+  UPDATE t1 SET        c=c+1,        e=e+1        WHERE a=10;
+  UPDATE t1 SET        c=c+1,        e=e+1, f=f+1 WHERE a=11;
+  UPDATE t1 SET        c=c+1, d=d+1               WHERE a=12;
+  UPDATE t1 SET        c=c+1, d=d+1,        f=f+1 WHERE a=13;
+  UPDATE t1 SET        c=c+1, d=d+1, e=e+1        WHERE a=14;
+  UPDATE t1 SET        c=c+1, d=d+1, e=e+1, f=f+1 WHERE a=15;
+  UPDATE t1 SET d=d+1                             WHERE a=16;
+  UPDATE t1 SET d=d+1,                      f=f+1 WHERE a=17;
+  UPDATE t1 SET d=d+1,               e=e+1        WHERE a=18;
+  UPDATE t1 SET d=d+1,               e=e+1, f=f+1 WHERE a=19;
+  UPDATE t1 SET d=d+1,        d=d+1               WHERE a=20;
+  UPDATE t1 SET d=d+1,        d=d+1,        f=f+1 WHERE a=21;
+  UPDATE t1 SET d=d+1,        d=d+1, e=e+1        WHERE a=22;
+  UPDATE t1 SET d=d+1,        d=d+1, e=e+1, f=f+1 WHERE a=23;
+  UPDATE t1 SET d=d+1, c=c+1                      WHERE a=24;
+  UPDATE t1 SET d=d+1, c=c+1,               f=f+1 WHERE a=25;
+  UPDATE t1 SET d=d+1, c=c+1,        e=e+1        WHERE a=26;
+  UPDATE t1 SET d=d+1, c=c+1,        e=e+1, f=f+1 WHERE a=27;
+  UPDATE t1 SET d=d+1, c=c+1, d=d+1               WHERE a=28;
+  UPDATE t1 SET d=d+1, c=c+1, d=d+1,        f=f+1 WHERE a=29;
+  UPDATE t1 SET d=d+1, c=c+1, d=d+1, e=e+1        WHERE a=30;
+  UPDATE t1 SET d=d+1, c=c+1, d=d+1, e=e+1, f=f+1 WHERE a=31;
+}
+
+do_test 11.0 {
+  compare_db db db2
+} {}
+
+finish_test
diff --git a/ext/session/session3.test b/ext/session/session3.test
new file mode 100644
index 0000000000000000000000000000000000000000..ee955f1376985df0ccaa7ec9b1eb16d9f2ba943c
--- /dev/null
+++ b/ext/session/session3.test
@@ -0,0 +1,214 @@
+# 2011 March 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for the session module. More
+# specifically, it focuses on testing the session modules response to
+# database schema modifications and mismatches.
+# 
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] session_common.tcl]
+source $testdir/tester.tcl
+ifcapable !session {finish_test; return}
+
+set testprefix session3
+
+#-------------------------------------------------------------------------
+# These tests - session3-1.* - verify that the session module behaves
+# correctly when confronted with a schema mismatch when applying a 
+# changeset (in function sqlite3changeset_apply()).
+#
+#   session3-1.1.*: Table does not exist in target db.
+#   session3-1.2.*: Table has wrong number of columns in target db.
+#   session3-1.3.*: Table has wrong PK columns in target db.
+#
+db close
+sqlite3_shutdown
+test_sqlite3_log log
+sqlite3 db test.db
+
+proc log {code msg} { lappend ::log $code $msg }
+
+forcedelete test.db2
+sqlite3 db2 test.db2
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a PRIMARY KEY, b);
+}
+do_test 1.1 {
+  set ::log {}
+  do_then_apply_sql {
+    INSERT INTO t1 VALUES(1, 2);
+    INSERT INTO t1 VALUES(3, 4);
+  }
+  set ::log
+} {SQLITE_SCHEMA {sqlite3changeset_apply(): no such table: t1}}
+
+do_test 1.2.0 {
+  execsql { CREATE TABLE t1(a PRIMARY KEY, b, c) } db2
+} {}
+do_test 1.2.1 {
+  set ::log {}
+  do_then_apply_sql {
+    INSERT INTO t1 VALUES(5, 6);
+    INSERT INTO t1 VALUES(7, 8);
+  }
+  set ::log
+} {}
+do_test 1.2.2 {
+  db2 eval { SELECT * FROM t1 }
+} {5 6 {} 7 8 {}}
+
+do_test 1.3.0 {
+  execsql { 
+    DROP TABLE t1;
+    CREATE TABLE t1(a, b PRIMARY KEY);
+  } db2
+} {}
+do_test 1.3.1 {
+  set ::log {}
+  do_then_apply_sql {
+    INSERT INTO t1 VALUES(9, 10);
+    INSERT INTO t1 VALUES(11, 12);
+  }
+  set ::log
+} {SQLITE_SCHEMA {sqlite3changeset_apply(): primary key mismatch for table t1}}
+
+#-------------------------------------------------------------------------
+# These tests - session3-2.* - verify that the session module behaves
+# correctly when the schema of an attached table is modified during the
+# session.
+#
+#   session3-2.1.*: Table is dropped midway through the session.
+#   session3-2.2.*: Table is dropped and recreated with a different # cols.
+#   session3-2.3.*: Table is dropped and recreated with a different PK.
+#
+# In all of these scenarios, the call to sqlite3session_changeset() will
+# return SQLITE_SCHEMA. Also:
+#   
+#   session3-2.4.*: Table is dropped and recreated with an identical schema.
+#                   In this case sqlite3session_changeset() returns SQLITE_OK.
+#
+
+do_test 2.1 {
+  execsql { CREATE TABLE t2(a, b PRIMARY KEY) }
+  sqlite3session S db main
+  S attach t2
+  execsql {
+    INSERT INTO t2 VALUES(1, 2);
+    DROP TABLE t2;
+  }
+  list [catch { S changeset } msg] $msg
+} {1 SQLITE_SCHEMA}
+
+do_test 2.2.1 {
+  S delete
+  sqlite3session S db main
+  execsql { CREATE TABLE t2(a, b PRIMARY KEY, c) }
+  S attach t2
+  execsql {
+    INSERT INTO t2 VALUES(1, 2, 3);
+    DROP TABLE t2;
+    CREATE TABLE t2(a, b PRIMARY KEY);
+  }
+  list [catch { S changeset } msg] $msg
+} {1 SQLITE_SCHEMA}
+do_test 2.2.2 {
+  S delete
+  sqlite3session S db main
+  execsql { 
+    DROP TABLE t2;
+    CREATE TABLE t2(a, b PRIMARY KEY, c);
+  }
+  S attach t2
+  execsql {
+    INSERT INTO t2 VALUES(1, 2, 3);
+    DROP TABLE t2;
+    CREATE TABLE t2(a, b PRIMARY KEY, c, d);
+  }
+  catch { S changeset } 
+} {0}
+do_test 2.2.3 {
+  S delete
+  sqlite3session S db main
+  execsql { 
+    DROP TABLE t2;
+    CREATE TABLE t2(a, b PRIMARY KEY, c);
+  }
+  S attach t2
+  execsql {
+    INSERT INTO t2 VALUES(1, 2, 3);
+    DROP TABLE t2;
+    CREATE TABLE t2(a, b PRIMARY KEY);
+    INSERT INTO t2 VALUES(4, 5);
+  }
+  list [catch { S changeset } msg] $msg
+} {1 SQLITE_SCHEMA}
+do_test 2.2.4 {
+  S delete
+  sqlite3session S db main
+  execsql { 
+    DROP TABLE t2;
+    CREATE TABLE t2(a, b PRIMARY KEY, c);
+  }
+  S attach t2
+  execsql {
+    INSERT INTO t2 VALUES(1, 2, 3);
+    DROP TABLE t2;
+    CREATE TABLE t2(a, b PRIMARY KEY, c, d);
+    INSERT INTO t2 VALUES(4, 5, 6, 7);
+  }
+  catch { S changeset }
+} {0}
+
+do_test 2.3 {
+  S delete
+  sqlite3session S db main
+  execsql { 
+    DROP TABLE t2;
+    CREATE TABLE t2(a, b PRIMARY KEY);
+  }
+  S attach t2
+  execsql {
+    INSERT INTO t2 VALUES(1, 2);
+    DROP TABLE t2;
+    CREATE TABLE t2(a PRIMARY KEY, b);
+  }
+  list [catch { S changeset } msg] $msg
+} {1 SQLITE_SCHEMA}
+
+do_test 2.4 {
+  S delete
+  sqlite3session S db main
+  execsql { 
+    DROP TABLE t2;
+    CREATE TABLE t2(a, b PRIMARY KEY);
+  }
+  S attach t2
+  execsql {
+    INSERT INTO t2 VALUES(1, 2);
+    DROP TABLE t2;
+    CREATE TABLE t2(a, b PRIMARY KEY);
+  }
+  list [catch { S changeset } msg] $msg
+} {0 {}}
+
+S delete
+
+
+catch { db close }
+catch { db2 close }
+sqlite3_shutdown
+test_sqlite3_log
+sqlite3_initialize
+
+finish_test
diff --git a/ext/session/session4.test b/ext/session/session4.test
new file mode 100644
index 0000000000000000000000000000000000000000..55cb76f153e18ab3c4a7eeb8069ecc55706061e6
--- /dev/null
+++ b/ext/session/session4.test
@@ -0,0 +1,149 @@
+# 2011 March 25
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for the session module. 
+# 
+
+if {$tcl_version<8.6} {
+  puts "This module requires Tcl 8.6 or later"
+  return
+}
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] session_common.tcl]
+source $testdir/tester.tcl
+ifcapable !session {finish_test; return}
+
+set testprefix session4
+
+do_test 1.0 {
+  execsql {
+    CREATE TABLE x(a, b, c, d, e, PRIMARY KEY(c, e));
+    INSERT INTO x VALUES(65.21, X'28B0', 16.35, NULL, 'doers');
+    INSERT INTO x VALUES(NULL, 78.49, 2, X'60', -66);
+    INSERT INTO x VALUES('cathedral', NULL, 35, NULL, X'B220937E80A2D8');
+    INSERT INTO x VALUES(NULL, 'masking', -91.37, NULL, X'596D');
+    INSERT INTO x VALUES(19, 'domains', 'espouse', -94, 'throw');
+  }
+
+  set changeset [changeset_from_sql {
+    DELETE FROM x WHERE e = -66;
+    UPDATE x SET a = 'parameterizable', b = 31.8 WHERE c = 35;
+    INSERT INTO x VALUES(-75.61, -17, 16.85, NULL, X'D73DB02678');
+  }]
+  set {} {}
+} {}
+
+
+# This currently causes crashes. sqlite3changeset_invert() does not handle
+# corrupt changesets well.
+if 0 {
+  do_test 1.1 {
+    for {set i 0} {$i < [string length $changeset]} {incr i} {
+      set before [string range $changeset 0 [expr $i-1]]
+      set after  [string range $changeset [expr $i+1] end]
+      for {set j 10} {$j < 260} {incr j} {
+        set x [binary format "a*ca*" $before $j $after]
+        catch { sqlite3changeset_invert $x }
+      }
+    }
+  } {}
+}
+
+do_test 1.2 {
+  set x [binary format "ca*" 0 [string range $changeset 1 end]]
+  list [catch { sqlite3changeset_invert $x } msg] $msg
+} {1 SQLITE_CORRUPT}
+
+do_test 1.3 {
+  set x [binary format "ca*" 0 [string range $changeset 1 end]]
+  list [catch { sqlite3changeset_apply db $x xConflict } msg] $msg
+} {1 SQLITE_CORRUPT}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 2.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY,b,c,d);
+  CREATE TABLE t2(e TEXT PRIMARY KEY NOT NULL,f,g);
+  CREATE TABLE t3(w REAL PRIMARY KEY NOT NULL,x,y);
+  CREATE TABLE t4(z PRIMARY KEY) WITHOUT ROWID;
+}
+
+foreach {tn blob} {
+  1 54010174340012000000
+  2 54fefe8bcb0012000300
+  3 5480809280808001017434001200fb
+  4 50af9c939c9c9cb09c9c6400b09c9c6400
+  5 12000300
+  6 09847304
+  7 5401017434001208
+  8 54010174340012fc0386868600
+  9 54010174340012FC0386868600
+  10 548894FEFE
+  11 54010171340012E703ABFA7433FD1200
+  12 540101743400120003FFED00010000000000000002120002400C00000000000054040100000074310017000100000000000000050100000000000000030100000000000000040000010000000000000004010000000000000003001700010000000000000007030378797A01000000000000000F000001000000000000000F030378797A005403010000743200090003037838790100000000800000000200000000000000000900030378327902400C0000000000000304666F7572
+  13 540101743400120003001200010000000000000002120002400C0000000000005404010000007431001700010000000000000005010000000000000003010000000000000004000001000000000000000401000000000000000300170001000000000000000703FC87797A01000000000000000F000001000000000000000F030378797A005403010000743200090003037838790100000000800000000200000000000000000900030378327902400C0000000000000304666F7572
+  14 540101743400120003001200010000000000000002120002400C00000000000054040100000074310017000100000000000000050100000000000000030100000000000000040000010000000000000004010000000000000003001700010000000000000007030378797A01000000000000000F000001000000000000000F03FC87797A005403010000743200090003037838790100000000800000000200000000000000000900030378327902400C0000000000000304666F7572
+  15 540101743400120003001200010000000000000002120002400C00000000000054040100000074310017000100000000000000050100000000000000030100000000000000040000010000000000000004010000000000000003001700010000000000000007030378797A01000000000000000F000001000000000000000F030378797A005403010000743200090003FC8738790100000000800000000200000000000000000900030378327902400C0000000000000304666F7572
+  16 540101743400120003001200010000000000000002120002400C00000000000054040100000074310017000100000000000000050100000000000000030100000000000000040000010000000000000004010000000000000003001700010000000000000007030378797A01000000000000000F000001000000000000000F030378797A00540301000074320009000303783879010000000080000000020000000000000000090003FC87327902400C0000000000000304666F7572
+  17 540101743400120003FFE3000412F7010000E600000000021202120002400C0000000000005B0401000000743100171C0304646F750002400C000000000000540401000000D3310017000100000000000000050100000000000378797A405403000002F10100000100000000000004090001000100000007030378797A0100000000000D0007000001000000002300000F1B0378797A405403013900743200090003038C3879010000000000000000000002120002400C0000000000005B0401000000743117170003047C5E00FF
+  18 54010174340012000300120001000000E6FF100000120002401E00000000000054040100000074310017000100040000010000000000000004FFFF7FFF0000000000010000010000001000000007030378797A01000000000000000F000000000000FA0304666F7572
+  19 540101743400120003001200010000000000000002121B02400C00000000000054040000000074310017000100000000000000050100000000000000030100000000000000040000010000000000000004010000000000000003001700010000000000000007030378817A01000000000000000F000001000000000100000F030378797A005403010000743200090003FFE809000303780000000000000304666F7572
+  20 5401017D3400120003001200010000000000000002120002400CFC00000000005404010000007431001700010000000000000005010000000000000003010000000000000004000001000000000000000401000000000000000300170001000000000000000703FFFF797A01000000000000000F000001000000000000000F030378797A005403010000743200090003037838790100000000800000000200000000000000000900030378326C02400C0000000000000304666F7572
+  21 5401017434001200030012000100FFE20000000002120002400C00000000000054040100E0007431001700010000E99D000000020000000003FFE70009000303783279020004000001030000000000002117000003001700012701000100000000743100000100000000008000090003037F387901000000008000000002000000000400000009005303010A00FF7FFFFF00000000000304664F6572
+  22 540101743400120003FFFF7FFF0000000000000002120002400C00000000000054040100000074310017000100000000000000050100000000000000030100010000000000000000040000010000000000000004010000000000000003001700010000000000000007030378797A01000000000000000F000001000000000000000F030378797A005403010000743200090003037838790100000000800000000200000000000000000900030378327902400C0000000000000304666F7572
+  23 540101742700120100120003F5FF0300
+  24 5401017434E312540101743400120003FFFC00
+  25 540101743400540101743D3D3D3D3D3D3D3D3D3D3D3D3D3400120003FFED000300
+  26 5401017446EA5301743D1D3D3D01743D1D3D3DCF3D3D3D1A3D3D3D3D3400120003FFFF000000
+  27 540101743400540101743D3D3D3D3D3D3D3D3D3D251000120003FF81000000000000
+  28 540101340012000397FF3D7F3D3400120003001200540101743D3D3D3D3D3D393D3D3D12000300
+  29 500174340050010F74340012000300120003FFE5
+  30 5004007233E900177FEF0054257F0002EF001200031E12000300
+  31 5001015001015252525250010174340012EF039A9A0100E351525D52525252525252525252525252525252525250010174340012EF039A0100009A9A9A9A9A9BA3B200120003010040743400
+  32 5401017400123400120003FFFC00
+  33 540101743400120003001200010000000000004002120002400C0000000000005404010000007431001700010000000000000005010000000000000003010000000000000004000001000000000000000401000000000000000300170001000000000000000703FC87797A01000000000000000F000001000000000000000F030378797A005403010000743200090003037838790100000000800000000200000000000000000900030378327902400C0000000000000304666F7572
+  34 54040100000074310017000100000002000015050100000000000000030100000000140000040000010000000000000004010000000000000003001700010000000000000007030378797A01000000000000000F000001000000000000000F030378797A0054030100007432000900030378387901000000008E000000020000000000000000090003FFFF000002400C0000000000000304666F7572
+  35 540101743400120003001200010000000000000002120002400C00000000000050060100000074310017000100000000000000050100000000000000030100000003001700010000666F7572
+  36 540101743400120003001200010000000000000002120002400C00000000000050050100000074310017000100000000000000050100000000000000030100000003001700010000666F7572
+  37 540101743400120003001200010000000000000002120002400C00000000000050040100008074310017000100000000000000050100000000000000030100000003001700010000666F7572
+  38 540101743400120003001200010000000000000002120002400C00000000000050040100000074310017000000000000000000050100000000000000030100000003001700010000666F7572
+  39 540101743400120003001200010000000000000002120002400C00000000000050040100018074310017000100000000000000050100000000000000030100000003001700010000666F7572
+  40 540101743400120003001200010000000000000002120002400C0000000000005004FEFFFFFF74310017000100000000000000050100000000000000030100000003001700010000666F7572
+  41 540101743400120003001200010000000000000002120002400C00000000000050040100000074310017000004000000000000050100000000000000030100000003001700010000666F7572
+  42 540101743400120003001200010000000000000002120002400C0000000000005005FFFF050074310017000100000000000000050100000000000000030100000003001700010000666F7572
+  43 540101743400120003001200010000000000000002120002400C000000000000500401006E0074310017000300000000001221050100000000000000030100000003001700010000666F7572
+  44 540101743400120003001200010000000000020000120002400C00000000000050050100000074310017000100000000000000050100004000000000030100000025001700010000666F7572
+  45 540101743400120003001200010000000000ECFF02120002400C000000000000500401F9FF00743100170001000000000000000500E1000000000000030100000003000000000000666F7572
+  46 54010174340B0B0B0B0B0B0B0B0B0B0B0B0B0B0B00120003001200010000000000000002120002400C00000000000050040100000074310017010000000000000000050100FFE900000000030100000003007F00000000666F7572
+  47 54010103001200010000000000020002120002400C0000000000005004010000F374310017000100000000000000050100000000000000030100000003001700010000666F8E72
+  48 540101743400120003001200010000000000000002120002400C00000000000050030012000174310017000700000000000000050100002000000001000000000003001700010000666F7572
+  49 540101743400120004001200010000000000000002120002400C0000000000005004010000FC733100170001000000000000000501000000000000000301000000F6FF17000100007C6F7572
+  50 54010174FFDDFF8003001200010000100000000002120002400C000000000000500401000000743100170000000005010000000000000000000003010072
+  51 540101743200120003001200010000000000000002120002400C00000000000050040100001074310017000000000003010000120300170100000000000000050100000000000000030100000003001700010000666F7572
+  52 540101745401017434001200010000000000001702120002400C00000000000050040100001A74310017000100000000000100000100000000000000030100000003001700010000666F7572
+  53 540101743400120003001200010000000000000002120002400C000000000000500401000000743100170001000002400C00000000000050040110000074310017000000000000050100000000000000030100000003001700010000666F7572
+  54 540101743400120003001200010000000000000002120002400C000000000002120002400C00000000000050040100000074310017FF0050040100000074310017FF7F00000000000000050100000000000000030100000003001700010000666F7572
+  55 540101743400120003001200010000000000000002120002400C00000000000050040100000074310017000100010080000001000000020003010100000300170100000003001700010000666F7572
+  56 5487ffffff7f
+} {
+  do_test 2.$tn {
+    set changeset [binary decode hex $blob]
+#set fd [open x.change w+]
+#fconfigure $fd -translation binary
+#puts -nonewline $fd $changeset
+#close $fd
+    list [catch { sqlite3changeset_apply db $changeset xConflict } msg] $msg
+  } {1 SQLITE_CORRUPT}
+}
+
+finish_test
diff --git a/ext/session/session5.test b/ext/session/session5.test
new file mode 100644
index 0000000000000000000000000000000000000000..9b8f9ffe12f955bccdc0095d2fc0537ab87cf2c7
--- /dev/null
+++ b/ext/session/session5.test
@@ -0,0 +1,408 @@
+# 2011 April 13
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for the session module. 
+# Specifically, for the sqlite3changeset_concat() command.
+# 
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] session_common.tcl]
+source $testdir/tester.tcl
+ifcapable !session {finish_test; return}
+
+set testprefix session5
+
+# Organization of tests:
+#
+#   session5-1.*: Simple tests to check the concat() function produces 
+#                 correct results.
+#
+#   session5-2.*: More complicated tests.
+#   
+#   session5-3.*: Schema mismatch errors.
+#
+#   session5-4.*: Test the concat cases that indicate that the database
+#                 was modified in between recording of the two changesets
+#                 being concatenated (i.e. two changesets that INSERT rows
+#                 with the same PK values).
+#
+
+proc do_concat_test {tn args} {
+
+  set subtest 0
+  foreach sql $args {
+    incr subtest
+    sqlite3session S db main ; S attach *
+    execsql $sql
+
+    set c [S changeset]
+    if {[info commands s_prev] != ""} {
+      set c_concat [sqlite3changeset_concat $c_prev $c]
+      set c_two [s_prev changeset]
+      s_prev delete
+
+      set h_concat [changeset_to_list $c_concat]
+      set h_two [changeset_to_list $c_two]
+
+      do_test $tn.$subtest [list set {} $h_concat] $h_two
+    }
+    set c_prev $c
+    rename S s_prev
+  }
+
+  catch { s_prev delete }
+}
+
+#-------------------------------------------------------------------------
+# Test cases session5-1.* - simple tests.
+#
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a PRIMARY KEY, b);
+}
+
+do_concat_test 1.1.1 {
+  INSERT INTO t1 VALUES(1, 'one');
+} {
+  INSERT INTO t1 VALUES(2, 'two');
+}
+
+do_concat_test 1.1.2 {
+  UPDATE t1 SET b = 'five' WHERE a = 1;
+} {
+  UPDATE t1 SET b = 'six' WHERE a = 2;
+}
+
+do_concat_test 1.1.3 {
+  DELETE FROM t1 WHERE a = 1;
+} {
+  DELETE FROM t1 WHERE a = 2;
+}
+
+
+# 1.2.1:    INSERT + DELETE                     -> (none)
+# 1.2.2:    INSERT + UPDATE                     -> INSERT
+#
+# 1.2.3:    DELETE + INSERT (matching data)     -> (none)
+# 1.2.4:    DELETE + INSERT (non-matching data) -> UPDATE
+#
+# 1.2.5:    UPDATE + UPDATE (matching data)     -> (none)
+# 1.2.6:    UPDATE + UPDATE (non-matching data) -> UPDATE
+# 1.2.7:    UPDATE + DELETE                     -> DELETE
+#
+do_concat_test 1.2.1 {
+  INSERT INTO t1 VALUES('x', 'y');
+} {
+  DELETE FROM t1 WHERE a = 'x';
+}
+do_concat_test 1.2.2 {
+  INSERT INTO t1 VALUES(5.0, 'five');
+} {
+  UPDATE t1 SET b = 'six' WHERE a = 5.0;
+}
+
+do_execsql_test 1.2.3.1 "INSERT INTO t1 VALUES('I', 'one')"
+do_concat_test 1.2.3.2 {
+  DELETE FROM t1 WHERE a = 'I';
+} {
+  INSERT INTO t1 VALUES('I', 'one');
+}
+do_concat_test 1.2.4 {
+  DELETE FROM t1 WHERE a = 'I';
+} {
+  INSERT INTO t1 VALUES('I', 'two');
+}
+do_concat_test 1.2.5 {
+  UPDATE t1 SET b = 'five' WHERE a = 'I';
+} {
+  UPDATE t1 SET b = 'two' WHERE a = 'I';
+}
+do_concat_test 1.2.6 {
+  UPDATE t1 SET b = 'six' WHERE a = 'I';
+} {
+  UPDATE t1 SET b = 'seven' WHERE a = 'I';
+}
+do_concat_test 1.2.7 {
+  UPDATE t1 SET b = 'eight' WHERE a = 'I';
+} {
+  DELETE FROM t1 WHERE a = 'I';
+}
+
+
+#-------------------------------------------------------------------------
+# Test cases session5-2.* - more complex tests.
+#
+db function indirect indirect 
+proc indirect {{x -1}} {
+  S indirect $x
+  s_prev indirect $x
+}
+do_concat_test 2.1 {
+  CREATE TABLE abc(a, b, c PRIMARY KEY);
+  INSERT INTO abc VALUES(NULL, NULL, 1);
+  INSERT INTO abc VALUES('abcdefghijkl', NULL, 2);
+} {
+  DELETE FROM abc WHERE c = 1;
+  UPDATE abc SET c = 1 WHERE c = 2;
+} {
+  INSERT INTO abc VALUES('abcdefghijkl', NULL, 2);
+  INSERT INTO abc VALUES(1.0, 2.0, 3);
+} {
+  UPDATE abc SET a = a-1;
+} {
+  CREATE TABLE def(d, e, f, PRIMARY KEY(e, f));
+  INSERT INTO def VALUES('x', randomblob(11000), 67);
+  INSERT INTO def SELECT d, e, f+1 FROM def;
+  INSERT INTO def SELECT d, e, f+2 FROM def;
+  INSERT INTO def SELECT d, e, f+4 FROM def;
+} {
+  DELETE FROM def WHERE rowid>4;
+} { 
+  INSERT INTO def SELECT d, e, f+4 FROM def; 
+} {
+  INSERT INTO abc VALUES(22, 44, -1);
+} { 
+  UPDATE abc SET c=-2 WHERE c=-1;
+  UPDATE abc SET c=-3 WHERE c=-2;
+} {
+  UPDATE abc SET c=-4 WHERE c=-3;
+} {
+  UPDATE abc SET a=a+1 WHERE c=-3;
+  UPDATE abc SET a=a+1 WHERE c=-3;
+} {
+  UPDATE abc SET a=a+1 WHERE c=-3;
+  UPDATE abc SET a=a+1 WHERE c=-3;
+} {
+  INSERT INTO abc VALUES('one', 'two', 'three');
+} {
+  SELECT indirect(1);
+  UPDATE abc SET a='one point five' WHERE c = 'three';
+} {
+  SELECT indirect(0);
+  UPDATE abc SET a='one point six' WHERE c = 'three';
+} {
+  CREATE TABLE x1(a, b, PRIMARY KEY(a));
+  SELECT indirect(1);
+  INSERT INTO x1 VALUES(1, 2);
+} {
+  SELECT indirect(1);
+  UPDATE x1 SET b = 3 WHERE a = 1;
+}
+
+catch {db close}
+forcedelete test.db
+sqlite3 db test.db
+do_concat_test 2.2 {
+  CREATE TABLE t1(a, b, PRIMARY KEY(b));
+  CREATE TABLE t2(a PRIMARY KEY, b);
+  INSERT INTO t1 VALUES('string', 1);
+  INSERT INTO t1 VALUES(4, 2);
+  INSERT INTO t1 VALUES(X'FFAAFFAAFFAA', 3);
+} {
+  INSERT INTO t2 VALUES('one', 'two');
+  INSERT INTO t2 VALUES(1, NULL);
+  UPDATE t1 SET a = 5 WHERE a = 2;
+} {
+  DELETE FROM t2 WHERE a = 1;
+  UPDATE t1 SET a = 4 WHERE a = 2;
+  INSERT INTO t2 VALUES('x', 'y');
+}
+
+do_test 2.3.0 {
+  catch {db close}
+  forcedelete test.db
+  sqlite3 db test.db
+ 
+  set sql1 ""
+  set sql2 ""
+  for {set i 1} {$i < 120} {incr i} {
+    append sql1 "INSERT INTO x1 VALUES($i*4, $i);"
+  }
+  for {set i 1} {$i < 120} {incr i} {
+    append sql2 "DELETE FROM x1 WHERE a = $i*4;"
+  }
+  set {} {}
+} {}
+do_concat_test 2.3 {
+  CREATE TABLE x1(a PRIMARY KEY, b)
+} $sql1 $sql2 $sql1 $sql2
+
+do_concat_test 2.4 {
+  CREATE TABLE x2(a PRIMARY KEY, b);
+  CREATE TABLE x3(a PRIMARY KEY, b);
+
+  INSERT INTO x2 VALUES('a', 'b');
+  INSERT INTO x2 VALUES('x', 'y');
+  INSERT INTO x3 VALUES('a', 'b');
+} {
+  INSERT INTO x2 VALUES('c', 'd');
+  INSERT INTO x3 VALUES('e', 'f');
+  INSERT INTO x3 VALUES('x', 'y');
+}
+
+do_concat_test 2.5 {
+  UPDATE x3 SET b = 'Y' WHERE a = 'x'
+} {
+  DELETE FROM x3 WHERE a = 'x'
+} {
+  DELETE FROM x2 WHERE a = 'a'
+} {
+  INSERT INTO x2 VALUES('a', 'B');
+}
+
+for {set k 1} {$k <=10} {incr k} {
+  do_test 2.6.$k.1 {
+    drop_all_tables
+    set sql1 ""
+    set sql2 ""
+    for {set i 1} {$i < 120} {incr i} {
+      append sql1 "INSERT INTO x1 VALUES(randomblob(20+(random()%10)), $i);"
+    }
+    for {set i 1} {$i < 120} {incr i} {
+      append sql2 "DELETE FROM x1 WHERE rowid = $i;"
+    }
+    set {} {}
+  } {}
+  do_concat_test 2.6.$k {
+    CREATE TABLE x1(a PRIMARY KEY, b)
+  } $sql1 $sql2 $sql1 $sql2
+}
+
+for {set k 1} {$k <=10} {incr k} {
+  do_test 2.7.$k.1 {
+    drop_all_tables
+    set sql1 ""
+    set sql2 ""
+    for {set i 1} {$i < 120} {incr i} {
+      append sql1 {
+        INSERT INTO x1 VALUES(
+         CASE WHEN random()%2 THEN random() ELSE randomblob(20+random()%10) END,
+         CASE WHEN random()%2 THEN random() ELSE randomblob(20+random()%10) END
+        );
+      }
+    }
+    for {set i 1} {$i < 120} {incr i} {
+      append sql2 "DELETE FROM x1 WHERE rowid = $i;"
+    }
+    set {} {}
+  } {}
+  do_concat_test 2.7.$k {
+    CREATE TABLE x1(a PRIMARY KEY, b)
+  } $sql1 $sql2 $sql1 $sql2
+}
+
+
+#-------------------------------------------------------------------------
+# Test that schema incompatibilities are detected correctly.
+#
+#   session5-3.1: Incompatible number of columns.
+#   session5-3.2: Incompatible PK definition.
+#
+
+do_test 3.1 {
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+
+  execsql { CREATE TABLE t1(a PRIMARY KEY, b) }
+  set c1 [changeset_from_sql { INSERT INTO t1 VALUES(1, 2) }]
+  execsql { 
+    DROP TABLE t1;
+    CREATE TABLE t1(a PRIMARY KEY, b, c);
+  }
+  set c2 [changeset_from_sql { INSERT INTO t1 VALUES(2, 3, 4) }]
+
+  list [catch { sqlite3changeset_concat $c1 $c2 } msg] $msg
+} {1 SQLITE_SCHEMA}
+
+do_test 3.2 {
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+
+  execsql { CREATE TABLE t1(a PRIMARY KEY, b) }
+  set c1 [changeset_from_sql { INSERT INTO t1 VALUES(1, 2) }]
+  execsql { 
+    DROP TABLE t1;
+    CREATE TABLE t1(a, b PRIMARY KEY);
+  }
+  set c2 [changeset_from_sql { INSERT INTO t1 VALUES(2, 3) }]
+
+  list [catch { sqlite3changeset_concat $c1 $c2 } msg] $msg
+} {1 SQLITE_SCHEMA}
+
+#-------------------------------------------------------------------------
+# Test that concat() handles these properly:
+#
+#   session5-4.1: INSERT + INSERT
+#   session5-4.2: UPDATE + INSERT
+#   session5-4.3: DELETE + UPDATE
+#   session5-4.4: DELETE + DELETE
+#
+
+proc do_concat_test2 {tn sql1 sqlX sql2 expected} {
+  sqlite3session S db main ; S attach *
+  execsql $sql1
+  set ::c1 [S changeset]
+  S delete
+
+  execsql $sqlX
+
+  sqlite3session S db main ; S attach *
+  execsql $sql2
+  set ::c2 [S changeset]
+  S delete
+
+  uplevel do_test $tn [list {
+    changeset_to_list [sqlite3changeset_concat $::c1 $::c2]
+  }] [list [normalize_list $expected]]
+}
+
+drop_all_tables db
+do_concat_test2 4.1 {
+  CREATE TABLE t1(a PRIMARY KEY, b);
+  INSERT INTO t1 VALUES('key', 'value');
+} {
+  DELETE FROM t1 WHERE a = 'key';
+} {
+  INSERT INTO t1 VALUES('key', 'xxx');
+} {
+  {INSERT t1 0 X. {} {t key t value}}
+}
+do_concat_test2 4.2 {
+  UPDATE t1 SET b = 'yyy';
+} {
+  DELETE FROM t1 WHERE a = 'key';
+} {
+  INSERT INTO t1 VALUES('key', 'value');
+} {
+  {UPDATE t1 0 X. {t key t xxx} {{} {} t yyy}}
+}
+do_concat_test2 4.3 {
+  DELETE FROM t1 WHERE a = 'key';
+} {
+  INSERT INTO t1 VALUES('key', 'www');
+} {
+  UPDATE t1 SET b = 'valueX' WHERE a = 'key';
+} {
+  {DELETE t1 0 X. {t key t value} {}}
+}
+do_concat_test2 4.4 {
+  DELETE FROM t1 WHERE a = 'key';
+} {
+  INSERT INTO t1 VALUES('key', 'ttt');
+} {
+  DELETE FROM t1 WHERE a = 'key';
+} {
+  {DELETE t1 0 X. {t key t valueX} {}}
+}
+
+finish_test
diff --git a/ext/session/session6.test b/ext/session/session6.test
new file mode 100644
index 0000000000000000000000000000000000000000..22fa93cb3575d523cd499eb726019dccb8e1599f
--- /dev/null
+++ b/ext/session/session6.test
@@ -0,0 +1,91 @@
+# 2011 July 11
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite sessions extension.
+# Specifically, it tests that sessions work when the database is modified
+# using incremental blob handles.
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] session_common.tcl]
+source $testdir/tester.tcl
+ifcapable !session {finish_test; return}
+ifcapable !incrblob {finish_test; return}
+
+set testprefix session6
+
+proc do_then_apply_tcl {tcl {dbname main}} {
+  proc xConflict args { return "OMIT" }
+  set rc [catch {
+    sqlite3session S db $dbname
+    db eval "SELECT name FROM $dbname.sqlite_master WHERE type = 'table'" {
+      S attach $name
+    }
+    eval $tcl
+    sqlite3changeset_apply db2 [S changeset] xConflict
+  } msg]
+
+  catch { S delete }
+  if {$rc} {error $msg}
+}
+
+test_sqlite3_log x
+proc x {args} {puts $args}
+
+forcedelete test.db2
+sqlite3 db2 test.db2
+
+do_common_sql {
+  CREATE TABLE t1(a PRIMARY KEY, b);
+  CREATE TABLE t2(c PRIMARY KEY, d);
+}
+
+# Test a blob update.
+#
+do_test 1.1 {
+  do_then_apply_tcl {
+    db eval { INSERT INTO t1 VALUES(1, 'helloworld') }
+    db eval { INSERT INTO t2 VALUES(2, 'onetwothree') }
+  }
+  compare_db db db2
+} {}
+do_test 1.2 {
+  do_then_apply_tcl {
+    set fd [db incrblob t1 b 1]
+    puts -nonewline $fd 1234567890
+    close $fd
+  }
+  compare_db db db2
+} {}
+
+# Test an attached database.
+#
+do_test 2.1 {
+  forcedelete test.db3
+  file copy test.db2 test.db3
+  execsql { ATTACH 'test.db3' AS aux; }
+
+  do_then_apply_tcl {
+    set fd [db incrblob aux t2 d 1]
+    puts -nonewline $fd fourfivesix
+    close $fd
+  } aux
+
+  sqlite3 db3 test.db3
+  compare_db db2 db3
+} {}
+
+
+db3 close
+db2 close
+
+finish_test
diff --git a/ext/session/session8.test b/ext/session/session8.test
new file mode 100644
index 0000000000000000000000000000000000000000..884da0e77512a83ccba8569b3c32a64cbe610088
--- /dev/null
+++ b/ext/session/session8.test
@@ -0,0 +1,91 @@
+# 2011 July 13
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] session_common.tcl]
+source $testdir/tester.tcl
+ifcapable !session {finish_test; return}
+
+set testprefix session8
+
+proc noop {args} {}
+
+# Like [dbcksum] in tester.tcl. Except this version is not sensitive
+# to changes in the value of implicit IPK columns.
+#
+proc udbcksum {db dbname} {
+  if {$dbname=="temp"} {
+    set master sqlite_temp_master
+  } else {
+    set master $dbname.sqlite_master
+  }
+  set alltab [$db eval "SELECT name FROM $master WHERE type='table'"]
+  set txt [$db eval "SELECT * FROM $master"]\n
+  foreach tab $alltab {
+    append txt [lsort [$db eval "SELECT * FROM $dbname.$tab"]]\n
+  }
+  return [md5 $txt]
+}
+
+proc do_then_undo {tn sql} {
+  set ck1 [udbcksum db main]
+
+  sqlite3session S db main
+  S attach *
+  db eval $sql
+
+  set ck2 [udbcksum db main]
+  
+  set invert [sqlite3changeset_invert [S changeset]]
+  S delete
+  sqlite3changeset_apply db $invert noop
+
+  set ck3 [udbcksum db main]
+
+  set a [expr {$ck1==$ck2}]
+  set b [expr {$ck1==$ck3}]
+  uplevel [list do_test $tn.1 "set {} $a" 0]
+  uplevel [list do_test $tn.2 "set {} $b" 1]
+}
+
+do_execsql_test 1.1 {
+  CREATE TABLE t1(a PRIMARY KEY, b);
+  INSERT INTO t1 VALUES(1, 2);
+  INSERT INTO t1 VALUES('abc', 'xyz');
+}
+do_then_undo 1.2 { INSERT INTO t1 VALUES(3, 4); }
+do_then_undo 1.3 { DELETE FROM t1 WHERE b=2; }
+do_then_undo 1.4 { UPDATE t1 SET b = 3 WHERE a = 1; }
+
+do_execsql_test 2.1 {
+  CREATE TABLE t2(a, b PRIMARY KEY);
+  INSERT INTO t2 VALUES(1, 2);
+  INSERT INTO t2 VALUES('abc', 'xyz');
+}
+do_then_undo 1.2 { INSERT INTO t2 VALUES(3, 4); }
+do_then_undo 1.3 { DELETE FROM t2 WHERE b=2; }
+do_then_undo 1.4 { UPDATE t1 SET a = '123' WHERE b = 'xyz'; }
+
+do_execsql_test 3.1 {
+  CREATE TABLE t3(a, b, c, d, e, PRIMARY KEY(c, e));
+  INSERT INTO t3 VALUES('x', 45, 0.0, 'abcdef', 12);
+  INSERT INTO t3 VALUES(45, 0.0, 'abcdef', 12, 'x');
+  INSERT INTO t3 VALUES(0.0, 'abcdef', 12, 'x', 45);
+}
+
+do_then_undo 3.2 { UPDATE t3 SET b=b||b WHERE e!='x' }
+do_then_undo 3.3 { UPDATE t3 SET a = 46 }
+
+finish_test
diff --git a/ext/session/session9.test b/ext/session/session9.test
new file mode 100644
index 0000000000000000000000000000000000000000..ebb88ffade7303438ee4c0f814b37d4692dc0383
--- /dev/null
+++ b/ext/session/session9.test
@@ -0,0 +1,287 @@
+# 2013 July 04
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file tests that the sessions module handles foreign key constraint
+# violations when applying changesets as required.
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] session_common.tcl]
+source $testdir/tester.tcl
+ifcapable !session {finish_test; return}
+set testprefix session9
+
+
+#--------------------------------------------------------------------
+# Basic tests.
+#
+proc populate_db {} {
+  drop_all_tables
+  execsql {
+    PRAGMA foreign_keys = 1;
+    CREATE TABLE p1(a PRIMARY KEY, b);
+    CREATE TABLE c1(a PRIMARY KEY, b REFERENCES p1);
+    CREATE TABLE c2(a PRIMARY KEY, 
+        b REFERENCES p1 DEFERRABLE INITIALLY DEFERRED
+    );
+
+    INSERT INTO p1 VALUES(1, 'one');
+    INSERT INTO p1 VALUES(2, 'two');
+    INSERT INTO p1 VALUES(3, 'three');
+    INSERT INTO p1 VALUES(4, 'four');
+  }
+}
+
+proc capture_changeset {sql} {
+  sqlite3session S db main
+
+  foreach t [db eval {SELECT name FROM sqlite_master WHERE type='table'}] {
+    S attach $t
+  }
+  execsql $sql
+  set ret [S changeset]
+  S delete
+
+  return $ret
+}
+
+do_test 1.1 {
+  populate_db
+  set cc [capture_changeset {
+    INSERT INTO c1 VALUES('ii', 2);
+    INSERT INTO c2 VALUES('iii', 3);
+  }]
+  set {} {}
+} {}
+
+proc xConflict {args} {
+  lappend ::xConflict {*}$args
+  return $::conflictret
+}
+
+foreach {tn delrow trans conflictargs conflictret} {
+  1   2 0 {FOREIGN_KEY 1} OMIT
+  2   3 0 {FOREIGN_KEY 1} OMIT
+  3   2 1 {FOREIGN_KEY 1} OMIT
+  4   3 1 {FOREIGN_KEY 1} OMIT
+  5   2 0 {FOREIGN_KEY 1} ABORT
+  6   3 0 {FOREIGN_KEY 1} ABORT
+  7   2 1 {FOREIGN_KEY 1} ABORT
+  8   3 1 {FOREIGN_KEY 1} ABORT
+} {
+
+  set A(OMIT)  {0 {}}
+  set A(ABORT) {1 SQLITE_CONSTRAINT}
+  do_test 1.2.$tn.1 {
+    populate_db
+    execsql { DELETE FROM p1 WHERE a=($delrow+0) }
+    if {$trans} { execsql BEGIN }
+
+    set ::xConflict [list]
+    list [catch {sqlite3changeset_apply db $::cc xConflict} msg] $msg
+  } $A($conflictret)
+
+  do_test 1.2.$tn.2 { set ::xConflict } $conflictargs
+
+  set A(OMIT)  {1 1}
+  set A(ABORT) {0 0}
+  do_test 1.2.$tn.3 {
+    execsql { SELECT count(*) FROM c1 UNION ALL SELECT count(*) FROM c2 }
+  } $A($conflictret)
+
+  do_test 1.2.$tn.4 { expr ![sqlite3_get_autocommit db] } $trans
+  do_test 1.2.$tn.5 {
+    if { $trans } { execsql COMMIT }
+  } {}
+}
+
+#--------------------------------------------------------------------
+# Test that closing a transaction clears the defer_foreign_keys flag.
+#
+foreach {tn open noclose close} {
+  1 BEGIN {} COMMIT
+  2 BEGIN {} ROLLBACK
+
+  3 {SAVEPOINT one} {}                {RELEASE one}
+  4 {SAVEPOINT one} {ROLLBACK TO one} {RELEASE one}
+} {
+  execsql $open
+  do_execsql_test 2.$tn.1 { PRAGMA defer_foreign_keys } {0}
+
+  do_execsql_test 2.$tn.2 {
+    PRAGMA defer_foreign_keys = 1;
+    PRAGMA defer_foreign_keys;
+  } {1}
+
+  execsql $noclose
+  do_execsql_test 2.$tn.3 { PRAGMA defer_foreign_keys } {1}
+
+  execsql $close
+  do_execsql_test 2.$tn.4 { PRAGMA defer_foreign_keys } {0}
+}
+
+#--------------------------------------------------------------------
+# Test that a cyclic relationship can be inserted and deleted.
+#
+# This situation does not come up in practice, but testing it serves to 
+# show that it does not matter which order parent and child keys 
+# are processed in internally when applying a changeset.
+#
+drop_all_tables
+
+do_execsql_test 3.1 {
+  CREATE TABLE t1(a PRIMARY KEY, b);
+  CREATE TABLE t2(x PRIMARY KEY, y);
+}
+
+# Create changesets as follows:
+# 
+#   $cc1    - Insert a row into t1.
+#   $cc2    - Insert a row into t2.
+#   $cc     - Combination of $cc1 and $cc2.
+#
+#   $ccdel1 - Delete the row from t1.
+#   $ccdel2 - Delete the row from t2.
+#   $ccdel  - Combination of $cc1 and $cc2.
+#
+do_test 3.2 {
+  set cc1 [capture_changeset {
+    INSERT INTO t1 VALUES('one', 'value one');
+  }]
+  set ccdel1 [capture_changeset { DELETE FROM t1; }]
+  set cc2 [capture_changeset {
+    INSERT INTO t2 VALUES('value one', 'one');
+  }]
+  set ccdel2 [capture_changeset { DELETE FROM t2; }]
+  set cc [capture_changeset {
+    INSERT INTO t1 VALUES('one', 'value one');
+    INSERT INTO t2 VALUES('value one', 'one');
+  }]
+  set ccdel [capture_changeset {
+    DELETE FROM t1;
+    DELETE FROM t2;
+  }]
+  set {} {}
+} {}
+
+# Now modify the database schema to create a cyclic foreign key dependency
+# between tables t1 and t2. This means that although changesets $cc and
+# $ccdel can be applied, none of the others may without violating the
+# foreign key constraints. 
+# 
+do_test 3.3 {
+
+  drop_all_tables
+  execsql {
+    CREATE TABLE t1(a PRIMARY KEY, b REFERENCES t2);
+    CREATE TABLE t2(x PRIMARY KEY, y REFERENCES t1);
+  }
+
+
+  proc conflict_handler {args} { return "ABORT" }
+  sqlite3changeset_apply db $cc conflict_handler
+
+  execsql {
+    SELECT * FROM t1;
+    SELECT * FROM t2;
+  }
+} {one {value one} {value one} one}
+
+do_test 3.3.1 {
+  list [catch {sqlite3changeset_apply db $::ccdel1 conflict_handler} msg] $msg
+} {1 SQLITE_CONSTRAINT}
+
+do_test 3.3.2 {
+  list [catch {sqlite3changeset_apply db $::ccdel2 conflict_handler} msg] $msg
+} {1 SQLITE_CONSTRAINT}
+
+do_test 3.3.4.1 {
+  list [catch {sqlite3changeset_apply db $::ccdel conflict_handler} msg] $msg
+} {0 {}}
+do_execsql_test 3.3.4.2 {
+  SELECT * FROM t1;
+  SELECT * FROM t2;
+} {}
+
+do_test 3.5.1 {
+  list [catch {sqlite3changeset_apply db $::cc1 conflict_handler} msg] $msg
+} {1 SQLITE_CONSTRAINT}
+do_test 3.5.2 {
+  list [catch {sqlite3changeset_apply db $::cc2 conflict_handler} msg] $msg
+} {1 SQLITE_CONSTRAINT}
+
+#--------------------------------------------------------------------
+# Test that if a change that affects FK processing is not applied 
+# due to a separate constraint, SQLite does not get confused and
+# increment FK counters anyway.
+#
+drop_all_tables
+do_execsql_test 4.1 {
+  CREATE TABLE p1(x PRIMARY KEY, y);
+  CREATE TABLE c1(a PRIMARY KEY, b REFERENCES p1);
+  INSERT INTO p1 VALUES(1,1);
+}
+
+do_execsql_test 4.2.1 {
+  BEGIN;
+    PRAGMA defer_foreign_keys = 1;
+    INSERT INTO c1 VALUES('x', 'x');
+}
+do_catchsql_test 4.2.2 { COMMIT } {1 {FOREIGN KEY constraint failed}}
+do_catchsql_test 4.2.3 { ROLLBACK } {0 {}}
+
+do_execsql_test 4.3.1 {
+  BEGIN;
+    PRAGMA defer_foreign_keys = 1;
+    INSERT INTO c1 VALUES(1, 1);
+}
+do_catchsql_test 4.3.2 { 
+  INSERT INTO c1 VALUES(1, 'x') 
+} {1 {UNIQUE constraint failed: c1.a}}
+
+do_catchsql_test 4.3.3 { COMMIT } {0 {}}
+do_catchsql_test 4.3.4 { BEGIN ; COMMIT } {0 {}}
+
+#--------------------------------------------------------------------
+# Test that if a DELETE change cannot be applied due to an 
+# SQLITE_CONSTRAINT error thrown by a trigger program, things do not
+# go awry.
+
+drop_all_tables
+reset_db
+do_execsql_test 5.1 {
+  CREATE TABLE x1(x PRIMARY KEY, y);
+  CREATE TABLE x2(x PRIMARY KEY, y);
+  INSERT INTO x2 VALUES(1, 1);
+  INSERT INTO x1 VALUES(1, 1);
+}
+
+set ::cc [changeset_from_sql { DELETE FROM x1; }]
+
+do_execsql_test 5.2 {
+  INSERT INTO x1 VALUES(1, 1);
+  CREATE TRIGGER tr1 AFTER DELETE ON x1 BEGIN
+    INSERT INTO x2 VALUES(old.x, old.y);
+  END;
+} {}
+
+proc conflict_handler {args} { return "ABORT" }
+do_test 5.3 {
+  list [catch {sqlite3changeset_apply db $::cc conflict_handler} msg] $msg
+} {1 SQLITE_ABORT}
+
+do_execsql_test 5.4 {
+  SELECT * FROM X1;
+} {1 1}
+
+finish_test
diff --git a/ext/session/sessionA.test b/ext/session/sessionA.test
new file mode 100644
index 0000000000000000000000000000000000000000..0e0a14e38a91cfc1d5eb608ac79824edd1295b1f
--- /dev/null
+++ b/ext/session/sessionA.test
@@ -0,0 +1,106 @@
+# 2013 July 04
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file tests that filter callbacks work as required.
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] session_common.tcl]
+source $testdir/tester.tcl
+ifcapable !session {finish_test; return}
+set testprefix sessionA
+
+
+forcedelete test.db2
+sqlite3 db2 test.db2
+foreach {tn db} {1 db 2 db2} {
+  do_test 1.$tn.1 {
+    execsql {
+      CREATE TABLE t1(a PRIMARY KEY, b);
+      CREATE TABLE t2(a PRIMARY KEY, b);
+      CREATE TABLE t3(a PRIMARY KEY, b);
+    } $db
+  } {}
+}
+
+proc tbl_filter {zTbl} {
+  return $::table_filter($zTbl)
+}
+
+do_test 2.1 {
+  set ::table_filter(t1) 1
+  set ::table_filter(t2) 0
+  set ::table_filter(t3) 1
+
+  sqlite3session S db main
+  S table_filter tbl_filter 
+
+  execsql {
+    INSERT INTO t1 VALUES('a', 'b');
+    INSERT INTO t2 VALUES('c', 'd');
+    INSERT INTO t3 VALUES('e', 'f');
+  }
+
+  set changeset [S changeset]
+  S delete
+  sqlite3changeset_apply db2 $changeset xConflict
+
+  execsql {
+    SELECT * FROM t1;
+    SELECT * FROM t2;
+    SELECT * FROM t3;
+  } db2
+} {a b e f}
+
+#-------------------------------------------------------------------------
+# Test that filter callbacks passed to sqlite3changeset_apply() are 
+# invoked correctly.
+#
+reset_db
+do_execsql_test 3.1 {
+  CREATE TABLE t1(a PRIMARY KEY, b);
+  CREATE TABLE t2(x PRIMARY KEY, y);
+}
+
+do_test 3.2 {
+  execsql BEGIN
+  set ::cs [changeset_from_sql { 
+    INSERT INTO t1 VALUES(1, 2);
+    INSERT INTO t2 VALUES('x', 'y');
+  }]
+  execsql ROLLBACK
+  set {} {}
+} {}
+
+proc filter {x y} { 
+  return [string equal $x $y] 
+}
+
+do_test 3.3 {
+  sqlite3changeset_apply db $::cs {} [list filter t1]
+  execsql {
+    SELECT * FROM t1;
+    SELECT * FROM t2;
+  }
+} {1 2}
+
+do_test 3.4 {
+  execsql { DELETE FROM t1 }
+  sqlite3changeset_apply db $::cs {} [list filter t2]
+  execsql {
+    SELECT * FROM t1;
+    SELECT * FROM t2;
+  }
+} {x y}
+
+finish_test
diff --git a/ext/session/sessionB.test b/ext/session/sessionB.test
new file mode 100644
index 0000000000000000000000000000000000000000..2c103d5e36dd7adcc064ba338464108562b70f4f
--- /dev/null
+++ b/ext/session/sessionB.test
@@ -0,0 +1,507 @@
+# 2014 August 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements regression tests for sessions SQLite extension.
+# Specifically, this file contains tests for "patchset" changes.
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] session_common.tcl]
+source $testdir/tester.tcl
+ifcapable !session {finish_test; return}
+
+set testprefix sessionB
+
+#
+# 1.*: Test that the blobs returned by the session_patchset() API are 
+#      as expected. Also the sqlite3_changeset_iter functions.
+#
+# 2.*: Test that patchset blobs are handled by sqlite3changeset_apply().
+#
+# 3.*: Test that sqlite3changeset_invert() works with patchset blobs. 
+#      Correct behaviour is to return SQLITE_CORRUPT.
+
+proc do_sql2patchset_test {tn sql res} {
+  sqlite3session S db main
+  S attach *
+  execsql $sql
+  uplevel [list do_patchset_test $tn S $res]
+  S delete
+}
+
+#-------------------------------------------------------------------------
+# Run simple tests of the _patchset() API.
+#
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b, c, d, PRIMARY KEY(d, a));
+  INSERT INTO t1 VALUES(1, 2, 3, 4);
+  INSERT INTO t1 VALUES(5, 6, 7, 8);
+  INSERT INTO t1 VALUES(9, 10, 11, 12);
+}
+
+do_test 1.1 {
+  sqlite3session S db main
+  S attach t1
+  execsql {
+    INSERT INTO t1 VALUES('w', 'x', 'y', 'z');
+    DELETE FROM t1 WHERE d=4;
+    UPDATE t1 SET c = 14 WHERE a=5;
+  }
+} {}
+
+do_patchset_test 1.2 S {
+  {UPDATE t1 0 X..X {i 5 {} {} {} {} i 8} {{} {} {} {} i 14 {} {}}}
+  {INSERT t1 0 X..X {} {t w t x t y t z}}
+  {DELETE t1 0 X..X {i 1 {} {} {} {} i 4} {}}
+}
+
+do_test 1.3 {
+  S delete
+} {}
+
+do_sql2patchset_test 1.4 {
+  DELETE FROM t1;
+} {
+  {DELETE t1 0 X..X {i 5 {} {} {} {} i 8} {}}
+  {DELETE t1 0 X..X {t w {} {} {} {} t z} {}}
+  {DELETE t1 0 X..X {i 9 {} {} {} {} i 12} {}}
+}
+
+do_sql2patchset_test 1.5 {
+  INSERT INTO t1 VALUES(X'61626364', NULL, NULL, 4.2);
+  INSERT INTO t1 VALUES(4.2, NULL, NULL, X'61626364');
+} {
+  {INSERT t1 0 X..X {} {f 4.2 n {} n {} b abcd}} 
+  {INSERT t1 0 X..X {} {b abcd n {} n {} f 4.2}}
+}
+
+do_sql2patchset_test 1.6 {
+  UPDATE t1 SET b=45 WHERE typeof(a)=='blob';
+  UPDATE t1 SET c='zzzz' WHERE typeof(a)!='blob';
+} {
+  {UPDATE t1 0 X..X {f 4.2 {} {} {} {} b abcd} {{} {} {} {} t zzzz {} {}}}
+  {UPDATE t1 0 X..X {b abcd {} {} {} {} f 4.2} {{} {} i 45 {} {} {} {}}}
+}
+
+do_sql2patchset_test 1.7 {
+  UPDATE t1 SET b='xyz' WHERE typeof(a)=='blob';
+  UPDATE t1 SET c='xyz' WHERE typeof(a)!='blob';
+  UPDATE t1 SET b=45 WHERE typeof(a)=='blob';
+  UPDATE t1 SET c='zzzz' WHERE typeof(a)!='blob';
+} {
+}
+
+do_sql2patchset_test 1.8 {
+  DELETE FROM t1;
+} {
+  {DELETE t1 0 X..X {f 4.2 {} {} {} {} b abcd} {}} 
+  {DELETE t1 0 X..X {b abcd {} {} {} {} f 4.2} {}}
+}
+
+#-------------------------------------------------------------------------
+# Run simple tests of _apply() with patchset objects.
+#
+reset_db
+
+proc noop {args} { error $args }
+proc exec_rollback_replay {sql} {
+  sqlite3session S db main
+  S attach *
+  execsql BEGIN
+  execsql $sql
+  set patchset [S patchset]
+  S delete
+  execsql ROLLBACK
+  sqlite3changeset_apply db $patchset noop
+}
+
+do_execsql_test 2.0 {
+  CREATE TABLE t2(a, b, c, d, PRIMARY KEY(b,c));
+  CREATE TABLE t3(w, x, y, z, PRIMARY KEY(w));
+}
+
+do_test 2.1 {
+  exec_rollback_replay {
+    INSERT INTO t2 VALUES(1, 2, 3, 4);
+    INSERT INTO t2 VALUES('w', 'x', 'y', 'z');
+  }
+  execsql { SELECT * FROM t2 }
+} {1 2 3 4 w x y z}
+
+do_test 2.2 {
+  exec_rollback_replay {
+    DELETE FROM t2 WHERE a=1;
+    UPDATE t2 SET d = 'a';
+  }
+  execsql { SELECT * FROM t2 }
+} {w x y a}
+
+#-------------------------------------------------------------------------
+# sqlite3changeset_invert()
+#
+reset_db
+
+do_execsql_test 3.1 { CREATE TABLE t1(x PRIMARY KEY, y) }
+do_test 3.2 {
+  sqlite3session S db main
+  S attach *
+  execsql { INSERT INTO t1 VALUES(1, 2) }
+  set patchset [S patchset]
+  S delete
+  list [catch { sqlite3changeset_invert $patchset } msg] [set msg]
+} {1 SQLITE_CORRUPT}
+
+
+#-------------------------------------------------------------------------
+# sqlite3changeset_concat()
+#
+reset_db
+
+proc do_patchconcat_test {tn args} {
+  set bRevert 0
+  if {[lindex $args 0] == "-revert"} {
+    set bRevert 1
+    set args [lrange $args 1 end]
+  }
+  set nSql [expr [llength $args]-1]
+  set res [lindex $args $nSql]
+  set patchlist [list]
+
+  execsql BEGIN
+  if {$bRevert} { execsql { SAVEPOINT x } }
+  foreach sql [lrange $args 0 end-1] {
+    sqlite3session S db main
+    S attach *
+    execsql $sql
+    lappend patchlist [S patchset]
+    S delete
+    if {$bRevert} { execsql { ROLLBACK TO x } }
+  }
+  execsql ROLLBACK
+
+  set patch [lindex $patchlist 0]
+  foreach p [lrange $patchlist 1 end] {
+    set patch [sqlite3changeset_concat $patch $p]
+  }
+
+  set x [list]
+  sqlite3session_foreach c $patch { lappend x $c }
+
+  uplevel [list do_test $tn [list set {} $x] [list {*}$res]]
+}
+
+do_execsql_test 4.1.1 {
+  CREATE TABLE t1(x PRIMARY KEY, y, z);
+}
+do_patchconcat_test 4.1.2 {
+  INSERT INTO t1 VALUES(1, 2, 3);
+} {
+  INSERT INTO t1 VALUES(4, 5, 6);
+} {
+  {INSERT t1 0 X.. {} {i 1 i 2 i 3}} 
+  {INSERT t1 0 X.. {} {i 4 i 5 i 6}}
+}
+
+do_execsql_test 4.2.1 {
+  INSERT INTO t1 VALUES(1, 2, 3);
+  INSERT INTO t1 VALUES(4, 5, 6);
+}
+
+do_patchconcat_test 4.2.2 {
+  UPDATE t1 SET z = 'abc' WHERE x=1
+} {
+  UPDATE t1 SET z = 'def' WHERE x=4
+} {
+  {UPDATE t1 0 X.. {i 1 {} {} {} {}} {{} {} {} {} t abc}} 
+  {UPDATE t1 0 X.. {i 4 {} {} {} {}} {{} {} {} {} t def}}
+}
+
+do_patchconcat_test 4.2.3 {
+  DELETE FROM t1 WHERE x=1;
+} {
+  DELETE FROM t1 WHERE x=4;
+} {
+  {DELETE t1 0 X.. {i 1 {} {} {} {}} {}} 
+  {DELETE t1 0 X.. {i 4 {} {} {} {}} {}}
+}
+
+
+do_execsql_test 4.3.1 {
+  CREATE TABLE t2(a, b, c, d, PRIMARY KEY(c, b));
+  INSERT INTO t2 VALUES('.', 1, 1, '.');
+  INSERT INTO t2 VALUES('.', 1, 2, '.');
+  INSERT INTO t2 VALUES('.', 2, 1, '.');
+  INSERT INTO t2 VALUES('.', 2, 2, '.');
+}
+
+# INSERT + INSERT 
+do_patchconcat_test 4.3.2 -revert {
+  INSERT INTO t2 VALUES('a', 'a', 'a', 'a');
+} {
+  INSERT INTO t2 VALUES('b', 'a', 'a', 'b');
+} {
+  {INSERT t2 0 .XX. {} {t a t a t a t a}}
+}
+
+# INSERT + DELETE 
+do_patchconcat_test 4.3.3 {
+  INSERT INTO t2 VALUES('a', 'a', 'a', 'a');
+} {
+  DELETE FROM t2 WHERE c = 'a';
+} {}
+
+# INSERT + UPDATE
+do_patchconcat_test 4.3.4 {
+  INSERT INTO t2 VALUES('a', 'a', 'a', 'a');
+} {
+  UPDATE t2 SET d = 'b' WHERE c='a';
+} {
+  {INSERT t2 0 .XX. {} {t a t a t a t b}}
+}
+
+# UPDATE + UPDATE
+do_patchconcat_test 4.3.5 {
+  UPDATE t2 SET a = 'a' WHERE c=1 AND b=2;
+} {
+  UPDATE t2 SET d = 'd' WHERE c=1 AND b=2;
+} {
+  {UPDATE t2 0 .XX. {{} {} i 2 i 1 {} {}} {t a {} {} {} {} t d}}
+}
+
+# UPDATE + DELETE
+do_patchconcat_test 4.3.6 {
+  UPDATE t2 SET a = 'a' WHERE c=1 AND b=2;
+} {
+  DELETE FROM t2 WHERE c=1 AND b=2;
+} {
+  {DELETE t2 0 .XX. {{} {} i 2 i 1 {} {}} {}}
+}
+
+# DELETE + INSERT
+do_patchconcat_test 4.3.7 {
+  DELETE FROM t2 WHERE b=1;
+} {
+  INSERT INTO t2 VALUES('x', 1, 2, '.');
+} {
+  {DELETE t2 0 .XX. {{} {} i 1 i 1 {} {}} {}} 
+  {UPDATE t2 0 .XX. {{} {} i 1 i 2 {} {}} {t x {} {} {} {} t .}}
+}
+
+# DELETE + UPDATE
+do_patchconcat_test 4.3.8 -revert {
+  DELETE FROM t2 WHERE b=1 AND c=2;
+} {
+  UPDATE t2 SET a=5 WHERE b=1 AND c=2;
+} {
+  {DELETE t2 0 .XX. {{} {} i 1 i 2 {} {}} {}} 
+}
+
+# DELETE + UPDATE
+do_patchconcat_test 4.3.9 -revert {
+  DELETE FROM t2 WHERE b=1 AND c=2;
+} {
+  DELETE FROM t2 WHERE b=1;
+} {
+  {DELETE t2 0 .XX. {{} {} i 1 i 1 {} {}} {}} 
+  {DELETE t2 0 .XX. {{} {} i 1 i 2 {} {}} {}} 
+}
+
+#-------------------------------------------------------------------------
+# More rigorous testing of the _patchset(), _apply and _concat() APIs.
+#
+# The inputs to each test are a populate database and a list of DML 
+# statements. This test determines that the final database is the same
+# if:
+# 
+#   1) the statements are executed directly on the database.
+#
+#   2) a single patchset is collected while executing the statements and
+#      then applied to a copy of the original database file.
+#
+#   3) individual patchsets are collected for statement while executing
+#      them and concatenated together before being applied to a copy of
+#      the original database. The concatenation is done in a couple of
+#      different ways - linear, pairwise etc.
+#
+# All tests, as it happens, are run with both changesets and patchsets.
+# But the focus is on patchset capabilities.
+#
+
+# Return a checksum of the contents of the database file. Implicit IPK
+# columns are not included in the checksum - just modifying rowids does
+# not change the database checksum.
+#
+proc databasecksum {db} {
+  set alltab [$db eval {SELECT name FROM sqlite_master WHERE type='table'}]
+  foreach tab $alltab {
+    $db eval "SELECT * FROM $tab LIMIT 1" res { }
+    set slist [list]
+    foreach col [lsort $res(*)] {
+      lappend slist "quote($col)"
+    }
+    set sql "SELECT [join $slist ,] FROM $tab"
+    append txt "[lsort [$db eval $sql]]\n"
+  }
+  return [md5 $txt]
+}
+
+proc do_patchset_test {tn tstcmd lSql} {
+  if {$tstcmd != "patchset" && $tstcmd != "changeset"} {
+    error "have $tstcmd: must be patchset or changeset"
+  }
+
+  foreach fname {test.db2 test.db3 test.db4 test.db5} {
+    forcedelete $fname
+    forcecopy test.db $fname
+  }
+
+  # Execute the SQL statements on [db]. Collect a patchset for each 
+  # individual statement, as well as a single patchset for the entire 
+  # operation.
+  sqlite3session S db main
+  S attach *
+  foreach sql $lSql { 
+    sqlite3session T db main
+    T attach *
+    db eval $sql 
+    lappend lPatch [T $tstcmd]
+    T delete
+  }
+  set patchset [S $tstcmd]
+  S delete
+
+  # Calculate a checksum for the final database.
+  set cksum [databasecksum db]
+
+  # 1. Apply the single large patchset to test.db2
+  sqlite3 db2 test.db2
+  sqlite3changeset_apply db2 $patchset noop
+  uplevel [list do_test $tn.1 { databasecksum db2 } $cksum ]
+  db2 close
+  
+  # 2. Apply each of the single-statement patchsets to test.db3
+  sqlite3 db2 test.db3
+  foreach p $lPatch {
+    sqlite3changeset_apply db2 $p noop
+  }
+  uplevel [list do_test $tn.2 { databasecksum db2 } $cksum ]
+  db2 close
+
+  # 3. Concatenate all single-statement patchsets into a single large
+  #    patchset, then apply it to test.db4.
+  #
+  sqlite3 db2 test.db4
+  set big ""
+  foreach p $lPatch {
+    set big [sqlite3changeset_concat $big $p]
+  }
+  sqlite3changeset_apply db2 $big noop
+  uplevel [list do_test $tn.3 { databasecksum db2 } $cksum ]
+  db2 close
+
+  # 4. Concatenate all single-statement patchsets pairwise into a single
+  #    large patchset, then apply it to test.db5. Pairwise concatenation:
+  #
+  #         a b c d e f g h i j k
+  #      -> {a b} {c d} {e f} {g h} {i j} k
+  #      -> {a b c d} {e f g h} {i j k}
+  #      -> {a b c d e f g h} {i j k}
+  #      -> {a b c d e f g h i j k}
+  #      -> APPLY!
+  #
+  sqlite3 db2 test.db5
+  set L $lPatch
+  while {[llength $L] > 1} {
+    set O [list]
+    for {set i 0} {$i < [llength $L]} {incr i 2} {
+      if {$i==[llength $L]-1} {
+        lappend O [lindex $L $i]
+      } else {
+        set i1 [expr $i+1]
+        lappend O [sqlite3changeset_concat [lindex $L $i] [lindex $L $i1]]
+      }
+    }
+    set L $O
+  }
+  sqlite3changeset_apply db2 [lindex $L 0] noop
+  uplevel [list do_test $tn.4 { databasecksum db2 } $cksum ]
+  db2 close
+}
+
+proc do_patchset_changeset_test {tn initsql args} {
+  foreach tstcmd {patchset changeset} {
+    reset_db
+    execsql $initsql
+    set x 0
+    foreach sql $args {
+      incr x
+      set lSql [split $sql ";"]
+      uplevel [list do_patchset_test $tn.$tstcmd.$x $tstcmd $lSql]
+    }
+  }
+}
+
+do_patchset_changeset_test 5.1 {
+  CREATE TABLE t1(a PRIMARY KEY, b, c);
+  INSERT INTO t1 VALUES(1, 2, 3);
+} {
+  INSERT INTO t1 VALUES(4, 5, 6);
+  DELETE FROM t1 WHERE a=1;
+} {
+  INSERT INTO t1 VALUES(7, 8, 9);
+  UPDATE t1 SET c = 5;
+  INSERT INTO t1 VALUES(10, 11, 12);
+  UPDATE t1 SET c = 6;
+  INSERT INTO t1 VALUES(13, 14, 15);
+} {
+  UPDATE t1 SET c=c+1;
+  DELETE FROM t1 WHERE (a%2);
+} 
+
+do_patchset_changeset_test 5.2 {
+  CREATE TABLE t1(a PRIMARY KEY, b, c);
+  CREATE TABLE t2(a, b, c, d, PRIMARY KEY(c, b));
+} {
+  INSERT INTO t1 VALUES(x'00', 0, 'zero');
+  INSERT INTO t1 VALUES(x'01', 1, 'one');
+  INSERT INTO t1 VALUES(x'02', 4, 'four');
+  INSERT INTO t1 VALUES(x'03', 9, 'nine');
+  INSERT INTO t1 VALUES(x'04', 16, 'sixteen');
+  INSERT INTO t1 VALUES(x'05', 25, 'twenty-five');
+} {
+  UPDATE t1 SET a = b WHERE b<=4;
+  INSERT INTO t2 SELECT NULL, * FROM t1;
+  DELETE FROM t1 WHERE b=25;
+} {
+  DELETE FROM t2;
+  INSERT INTO t2 SELECT NULL, * FROM t1;
+  DELETE FROM t1;
+  INSERT INTO t1 SELECT b, c, d FROM t2;
+  UPDATE t1 SET b = b+1;
+  UPDATE t1 SET b = b+1;
+  UPDATE t1 SET b = b+1;
+}
+
+set initsql { CREATE TABLE t1(a, b, c, PRIMARY KEY(c, b)); }
+for {set i 0} {$i < 1000} {incr i} {
+  append insert "INSERT INTO t1 VALUES($i, $i, $i);"
+  append delete "DELETE FROM t1 WHERE b=$i;"
+}
+do_patchset_changeset_test 5.3 \
+  $initsql $insert $delete     \
+  $insert $delete              \
+  "$insert $delete"            \
+  $delete
+
+
+finish_test
diff --git a/ext/session/sessionC.test b/ext/session/sessionC.test
new file mode 100644
index 0000000000000000000000000000000000000000..74370cb79ac029ee62c07c27a70493319b7265b7
--- /dev/null
+++ b/ext/session/sessionC.test
@@ -0,0 +1,197 @@
+# 2014 August 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] session_common.tcl]
+source $testdir/tester.tcl
+ifcapable !session {finish_test; return}
+
+set testprefix sessionC
+
+#-------------------------------------------------------------------------
+# Test the outcome of a DELETE operation made as part of applying a
+# changeset failing with SQLITE_CONSTRAINT. This may happen if an
+# ON DELETE RESTRICT foreign key action is triggered, or if a trigger
+# program raises a constraint somehow.
+#
+# UPDATE: The above is no longer true, as "PRAGMA defer_foreign_keys"
+# now disables "RESTRICT" processing. The test below has been rewritten 
+# to use a trigger instead of a foreign key to test this case.
+#
+do_execsql_test 1.0 {
+  PRAGMA foreign_keys = 1;
+
+  CREATE TABLE p(a PRIMARY KEY, b, c);
+  CREATE TABLE c(d PRIMARY KEY, e /* REFERENCES p ON DELETE RESTRICT */);
+
+  CREATE TRIGGER restrict_trig BEFORE DELETE ON p BEGIN
+    SELECT raise(ABORT, 'error!') FROM c WHERE e=old.a;
+  END;
+
+  INSERT INTO p VALUES('one', 1, 1);
+  INSERT INTO p VALUES('two', 2, 2);
+  INSERT INTO p VALUES('three', 3, 3);
+
+  INSERT INTO c VALUES(1, 'one');
+  INSERT INTO c VALUES(3, 'three');
+}
+
+do_test 1.1 {
+  execsql BEGIN
+  set C [changeset_from_sql {
+    INSERT INTO c VALUES(4, 'one');
+    DELETE FROM p WHERE a='two';
+  }]
+  execsql ROLLBACK
+  execsql {
+    INSERT INTO c VALUES(2, 'two');
+  }
+} {}
+
+do_test 1.2.1 {
+  proc xConflict {args} { return "ABORT" }
+  catch { sqlite3changeset_apply db $C xConflict } msg
+  set msg
+} {SQLITE_ABORT}
+do_execsql_test 1.2.2 { SELECT * FROM c } {1 one 3 three 2 two}
+
+do_test 1.3.1 {
+  proc xConflict {args} { return "OMIT" }
+  catch { sqlite3changeset_apply db $C xConflict } msg
+  set msg
+} {}
+do_execsql_test 1.3.2 { SELECT * FROM c } {1 one 3 three 2 two 4 one}
+do_execsql_test 1.3.3 { 
+  SELECT * FROM p;
+} {one 1 1 two 2 2 three 3 3}
+
+
+#-------------------------------------------------------------------------
+# Test that concatenating a changeset with a patchset does not work.
+# Any attempt to do so returns SQLITE_ERROR.
+#
+reset_db
+do_execsql_test 2.0 {
+  CREATE TABLE x1(t, v PRIMARY KEY);
+  INSERT INTO x1 VALUES(12, 55);
+  INSERT INTO x1 VALUES(55, 14);
+}
+
+do_test 2.1 {
+  execsql BEGIN
+
+  sqlite3session S1 db main
+  S1 attach *
+  execsql {
+    UPDATE x1 SET t=13 WHERE v=55;
+    INSERT INTO x1 VALUES(99, 123);
+  }
+  set patchset [S1 patchset]
+  S1 delete
+
+  sqlite3session S1 db main
+  S1 attach *
+  execsql {
+    UPDATE x1 SET t=56 WHERE v=14;
+    INSERT INTO x1 VALUES(22, 998);
+  }
+  set changeset [S1 changeset]
+  S1 delete
+
+  execsql ROLLBACK
+} {}
+
+do_test 2.2 {
+  set rc [catch { sqlite3changeset_concat $patchset $changeset } msg]
+  list $rc $msg
+} {1 SQLITE_ERROR}
+
+do_test 2.3 {
+  set rc [catch { sqlite3changeset_concat $changeset $patchset } msg]
+  list $rc $msg
+} {1 SQLITE_ERROR}
+
+do_test 2.4 {
+  set rc [catch { sqlite3changeset_concat {} $patchset } msg]
+  list $rc $msg
+} [list 0 $patchset]
+
+do_test 2.5 {
+  set rc [catch { sqlite3changeset_concat $patchset {} } msg]
+  list $rc $msg
+} [list 0 $patchset]
+
+do_test 2.6 {
+  set rc [catch { sqlite3changeset_concat {} $changeset } msg]
+  list $rc $msg
+} [list 0 $changeset]
+
+do_test 2.7 {
+  set rc [catch { sqlite3changeset_concat $changeset {} } msg]
+  list $rc $msg
+} [list 0 $changeset]
+
+do_test 2.8 {
+  set rc [catch { sqlite3changeset_concat {} {} } msg]
+  list $rc $msg
+} [list 0 {}]
+
+
+#-------------------------------------------------------------------------
+# Test that the xFilter argument to sqlite3changeset_apply() works.
+#
+reset_db
+do_execsql_test 3.0 {
+  CREATE TABLE t1(a PRIMARY KEY, b);
+  CREATE TABLE t2(a PRIMARY KEY, b);
+  CREATE TABLE t3(a PRIMARY KEY, b);
+}
+do_test 3.1 {
+  execsql BEGIN
+  set changeset [changeset_from_sql {
+    INSERT INTO t1 VALUES(1, 1);
+    INSERT INTO t2 VALUES(2, 2);
+    INSERT INTO t3 VALUES(3, 3);
+  }]
+  execsql ROLLBACK
+} {}
+do_test 3.2 {
+  proc xFilter {zName} {
+    if {$zName == "t1"} { return 1 }
+    return 0
+  }
+  sqlite3changeset_apply db $changeset noop xFilter
+  execsql {
+    SELECT * FROM t1;
+    SELECT * FROM t2;
+    SELECT * FROM t3;
+  }
+} {1 1}
+do_test 3.3 {
+  proc xFilter {zName} {
+    if {$zName == "t3"} { return 1 }
+    return 0
+  }
+  sqlite3changeset_apply db $changeset noop xFilter
+  execsql {
+    SELECT * FROM t1;
+    SELECT * FROM t2;
+    SELECT * FROM t3;
+  }
+} {1 1 3 3}
+
+
+
+finish_test
diff --git a/ext/session/sessionD.test b/ext/session/sessionD.test
new file mode 100644
index 0000000000000000000000000000000000000000..9fccbfa96f0264b54751b164dc64e5f44074b4b9
--- /dev/null
+++ b/ext/session/sessionD.test
@@ -0,0 +1,233 @@
+# 2014 August 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file focuses on the sqlite3session_diff() function.
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] session_common.tcl]
+source $testdir/tester.tcl
+ifcapable !session {finish_test; return}
+
+set testprefix sessionD
+
+proc scksum {db dbname} {
+
+  if {$dbname=="temp"} {
+    set master sqlite_temp_master
+  } else {
+    set master $dbname.sqlite_master
+  }
+
+  set alltab [$db eval "SELECT name FROM $master WHERE type='table'"]
+  set txt [$db eval "SELECT * FROM $master ORDER BY type,name,sql"]
+  foreach tab $alltab {
+    set cols [list]
+    db eval "PRAGMA $dbname.table_info = $tab" x { 
+      lappend cols "quote($x(name))" 
+    }
+    set cols [join $cols ,]
+    append txt [db eval "SELECT $cols FROM $tab ORDER BY $cols"]
+  }
+  return [md5 $txt]
+}
+
+# Ensure that the diff produced by comparing the current contents of [db]
+# with itself is empty.
+proc do_empty_diff_test {tn} {
+  forcedelete test.db2
+  forcecopy test.db test.db2
+
+  execsql { ATTACH 'test.db2' AS aux }
+  sqlite3session S db main
+  foreach tbl [db eval {SELECT name FROM sqlite_master WHERE type='table'}] {
+    S attach $tbl
+    S diff aux $tbl
+  }
+
+  set ::C [S changeset]
+  S delete
+
+  uplevel [list do_test $tn {string length $::C} 0]
+}
+
+
+forcedelete test.db2
+do_execsql_test 1.0 {
+  CREATE TABLE t2(a PRIMARY KEY, b);
+  INSERT INTO t2 VALUES(1, 'one');
+  INSERT INTO t2 VALUES(2, 'two');
+
+  ATTACH 'test.db2' AS aux;
+  CREATE TABLE aux.t2(a PRIMARY KEY, b);
+}
+
+do_test 1.1 {
+  sqlite3session S db main
+  S attach t2
+  S diff aux t2
+  set C [S changeset]
+  S delete
+} {}
+
+do_test 1.2 {
+  sqlite3 db2 test.db2
+  sqlite3changeset_apply db2 $C ""
+  db2 close
+  db eval { SELECT * FROM aux.t2 }
+} {1 one 2 two}
+
+do_diff_test 2.1 {
+  CREATE TABLE aux.t1(x, y, PRIMARY KEY(y));
+  CREATE TABLE t1(x, y, PRIMARY KEY(y));
+
+  INSERT INTO t1 VALUES(1, 2);
+  INSERT INTO t1 VALUES(NULL, 'xyz');
+  INSERT INTO t1 VALUES(4.5, 5.5);
+}
+
+do_diff_test 2.2 {
+  CREATE TABLE aux.t1(x, y, PRIMARY KEY(y));
+  CREATE TABLE t1(x, y, PRIMARY KEY(y));
+
+  INSERT INTO aux.t1 VALUES(1, 2);
+  INSERT INTO aux.t1 VALUES(NULL, 'xyz');
+  INSERT INTO aux.t1 VALUES(4.5, 5.5);
+}
+
+do_diff_test 2.3 {
+  CREATE TABLE aux.t1(a PRIMARY KEY, b TEXT);
+  CREATE TABLE t1(a PRIMARY KEY, b TEXT);
+
+  INSERT INTO aux.t1 VALUES(1, 'one');
+  INSERT INTO aux.t1 VALUES(2, 'two');
+  INSERT INTO aux.t1 VALUES(3, 'three');
+
+  INSERT INTO t1 VALUES(1, 'I');
+  INSERT INTO t1 VALUES(2, 'two');
+  INSERT INTO t1 VALUES(3, 'III');
+}
+
+do_diff_test 2.4 {
+  CREATE TABLE aux.t1(a, b, c, d, PRIMARY KEY(c, b, a));
+  CREATE TABLE t1(a, b, c, d, PRIMARY KEY(c, b, a));
+
+  INSERT INTO t1 VALUES('hvkzyipambwdqlvwv','',-458331.50,X'DA51ED5E84');
+  INSERT INTO t1 VALUES(X'C5C6B5DD','jjxrath',40917,830244);
+  INSERT INTO t1 VALUES(-204877.54,X'1704C253D5F3AFA8',155120.88,NULL);
+  INSERT INTO t1 
+  VALUES('ckmqmzoeuvxisxqy',X'EB5A5D3A1DD22FD1','tidhjcbvbppdt',-642987.37);
+  INSERT INTO t1 VALUES(-851726,-161992,-469943,-159541);
+  INSERT INTO t1 VALUES(X'4A6A667F858938',185083,X'7A',NULL);
+
+  INSERT INTO aux.t1 VALUES(415075.74,'auawczkb',X'',X'57B4FAAF2595');
+  INSERT INTO aux.t1 VALUES(727637,711560,-181340,'hphuo');
+  INSERT INTO aux.t1 
+  VALUES(-921322.81,662959,'lvlgwdgxaurr','ajjrzrbhqflsutnymgc');
+  INSERT INTO aux.t1 VALUES(-146061,-377892,X'4E','gepvpvvuhszpxabbb');
+  INSERT INTO aux.t1 VALUES(-851726,-161992,-469943,-159541);
+  INSERT INTO aux.t1 VALUES(X'4A6A667F858938',185083,X'7A',NULL);
+  INSERT INTO aux.t1 VALUES(-204877.54,X'1704C253D5F3AFA8',155120.88, 4);
+  INSERT INTO aux.t1 
+  VALUES('ckmqmzoeuvxisxqy',X'EB5A5D3A1DD22FD1','tidgtsplhjcbvbppdt',-642987.3);
+}
+
+reset_db
+do_execsql_test 3.0 {
+  CREATE TABLE t1(a, b, c, PRIMARY KEY(a));
+  INSERT INTO t1 VALUES(1, 2, 3);
+  INSERT INTO t1 VALUES(4, 5, 6);
+  INSERT INTO t1 VALUES(7, 8, 9);
+
+  CREATE TABLE t2(a, b, c, PRIMARY KEY(a, b));
+  INSERT INTO t2 VALUES(1, 2, 3);
+  INSERT INTO t2 VALUES(4, 5, 6);
+  INSERT INTO t2 VALUES(7, 8, 9);
+
+  CREATE TABLE t3(a, b, c, PRIMARY KEY(a, b, c));
+  INSERT INTO t3 VALUES(1, 2, 3);
+  INSERT INTO t3 VALUES(4, 5, 6);
+  INSERT INTO t3 VALUES(7, 8, 9);
+}
+do_empty_diff_test 3.1
+
+
+#-------------------------------------------------------------------------
+# Test some error cases:
+# 
+#   1) schema mismatches between the two dbs, and 
+#   2) tables with no primary keys. This is not actually an error, but
+#      should not add any changes to the session object.
+#
+reset_db
+forcedelete test.db2
+do_execsql_test 4.0 {
+  ATTACH 'test.db2' AS ixua;
+  CREATE TABLE ixua.t1(a, b, c);
+  CREATE TABLE main.t1(a, b, c);
+  INSERT INTO main.t1 VALUES(1, 2, 3);
+
+  CREATE TABLE ixua.t2(a PRIMARY KEY, b, c);
+  CREATE TABLE main.t2(a PRIMARY KEY, b, x);
+}
+
+do_test 4.1.1 {
+  sqlite3session S db main
+  S attach t1
+  list [catch { S diff ixua t1 } msg] $msg
+} {0 {}}
+do_test 4.1.2 {
+  string length [S changeset]
+} {0}
+S delete
+
+do_test 4.2.2 {
+  sqlite3session S db main
+  S attach t2
+  list [catch { S diff ixua t2 } msg] $msg
+} {1 {SQLITE_SCHEMA - table schemas do not match}}
+S delete
+
+do_test 4.3.1 {
+  sqlite3session S db main
+  S attach t4
+  execsql { CREATE TABLE t4(i PRIMARY KEY, b) }
+  list [catch { S diff ixua t4 } msg] $msg
+} {1 {SQLITE_SCHEMA - table schemas do not match}}
+S delete
+do_catchsql_test 4.3.2 {
+  SELECT * FROM ixua.t4;
+} {1 {no such table: ixua.t4}}
+
+do_test 4.4.1 {
+  sqlite3session S db main
+  S attach sqlite_stat1
+  execsql { ANALYZE }
+  execsql { DROP TABLE ixua.sqlite_stat1 }
+  list [catch { S diff ixua sqlite_stat1 } msg] $msg
+} {1 {SQLITE_SCHEMA - table schemas do not match}}
+S delete
+do_catchsql_test 4.4.2 {
+  SELECT * FROM ixua.sqlite_stat1;
+} {1 {no such table: ixua.sqlite_stat1}}
+
+do_test 4.5.1 {
+  sqlite3session S db main
+  S attach t8
+  list [catch { S diff ixua t8 } msg] $msg
+} {0 {}}
+S delete
+do_catchsql_test 4.5.2 {
+  SELECT * FROM ixua.i8;
+} {1 {no such table: ixua.i8}}
+
+finish_test
diff --git a/ext/session/sessionE.test b/ext/session/sessionE.test
new file mode 100644
index 0000000000000000000000000000000000000000..9cec7d779d88cae2252932370b212a695db22abc
--- /dev/null
+++ b/ext/session/sessionE.test
@@ -0,0 +1,113 @@
+# 2015 June 02
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements regression tests for the sessions module.
+# Specifically, it tests that operations on tables without primary keys
+# are ignored.
+#
+
+
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] session_common.tcl]
+source $testdir/tester.tcl
+ifcapable !session {finish_test; return}
+set testprefix sessionE
+
+#
+# Test plan:
+#
+#    1.*: Test that non-PK tables are not auto-attached.
+#    2.*: Test that explicitly attaching a non-PK table is a no-op.
+#    3.*: Test that sqlite3session_diff() on a non-PK table is a no-op.
+#
+
+
+#--------------------------------------------------------------------------
+reset_db
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b);
+  CREATE TABLE t2(a PRIMARY KEY, b);
+}
+do_test 1.1 {
+  sqlite3session S db main
+  S attach *
+  execsql {
+    INSERT INTO t1 VALUES(1, 2);
+    INSERT INTO t2 VALUES(1, 2);
+  }
+} {}
+do_changeset_test 1.2 S {
+  {INSERT t2 0 X. {} {i 1 i 2}}
+}
+S delete
+
+reset_db
+do_execsql_test 2.0 {
+  CREATE TABLE t1(a, b);
+  CREATE TABLE t2(a PRIMARY KEY, b);
+}
+do_test 2.1 {
+  sqlite3session S db main
+  S attach t1
+  S attach t2
+  execsql {
+    INSERT INTO t1 VALUES(3, 4);
+    INSERT INTO t2 VALUES(3, 4);
+    INSERT INTO t1 VALUES(5, 6);
+    INSERT INTO t2 VALUES(5, 6);
+  }
+} {}
+do_changeset_test 2.2 S {
+  {INSERT t2 0 X. {} {i 3 i 4}}
+  {INSERT t2 0 X. {} {i 5 i 6}}
+}
+S delete
+
+reset_db
+forcedelete test.db2
+do_execsql_test 3.0 {
+  ATTACH 'test.db2' AS aux;
+  CREATE TABLE aux.t1(a, b);
+  CREATE TABLE aux.t2(a PRIMARY KEY, b);
+
+  CREATE TABLE t1(a, b);
+  CREATE TABLE t2(a PRIMARY KEY, b);
+
+  INSERT INTO t1 VALUES(1, 2);
+  INSERT INTO t2 VALUES(3, 4);
+}
+do_test 3.1 {
+  sqlite3session S db main
+  S attach t1
+  S diff aux t1
+
+  S attach t2
+  S diff aux t2
+} {}
+do_changeset_test 3.2 S {
+  {INSERT t2 0 X. {} {i 3 i 4}}
+}
+do_execsql_test 3.3 {
+  INSERT INTO t1 VALUES(5, 6);
+  INSERT INTO t2 VALUES(7, 8);
+}
+do_changeset_test 3.4 S {
+  {INSERT t2 0 X. {} {i 3 i 4}}
+  {INSERT t2 0 X. {} {i 7 i 8}}
+}
+
+
+S delete
+
+finish_test
diff --git a/ext/session/sessionF.test b/ext/session/sessionF.test
new file mode 100644
index 0000000000000000000000000000000000000000..6a6eabcfd54b290609af3142b0615c4102fc2cbe
--- /dev/null
+++ b/ext/session/sessionF.test
@@ -0,0 +1,294 @@
+# 2015 June 02
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements regression tests for the sessions module.
+# Specifically, it tests that tables appear in the correct order
+# within changesets and patchsets.
+#
+
+
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] session_common.tcl]
+source $testdir/tester.tcl
+ifcapable !session {finish_test; return}
+set testprefix sessionF
+
+#
+# Test plan:
+#
+#    1.*: Test that sqlite3session_changeset() and sqlite3session_patchset()
+#         output tables in the right order.
+#
+#    2.*: Test that sqlite3session_invert() does not modify the order of
+#         tables within a changeset.
+#
+#    3.*: Test that sqlite3session_concat outputs tables in the right order.
+#
+
+# Create a db schema to use.
+#
+do_execsql_test 1.0 {
+  CREATE TABLE t3(e PRIMARY KEY, f);
+  CREATE TABLE t1(a PRIMARY KEY, b);
+  CREATE TABLE t2(c PRIMARY KEY, d);
+}
+
+#-----------------------------------------------------------------------
+# 1.* - changeset() and patchset().
+#
+
+foreach {tn setup result} {
+  1 {
+    S attach *
+  } {
+    {INSERT t2 0 X. {} {i 2 t two}} 
+    {INSERT t1 0 X. {} {i 1 t one}} 
+    {INSERT t3 0 X. {} {i 3 t three}}
+  }
+
+  2 {
+    S attach t1
+    S attach *
+  } {
+    {INSERT t1 0 X. {} {i 1 t one}} 
+    {INSERT t2 0 X. {} {i 2 t two}} 
+    {INSERT t3 0 X. {} {i 3 t three}}
+  }
+
+  3 {
+    S attach t3
+    S attach t2
+    S attach t1
+  } {
+    {INSERT t3 0 X. {} {i 3 t three}}
+    {INSERT t2 0 X. {} {i 2 t two}} 
+    {INSERT t1 0 X. {} {i 1 t one}} 
+  }
+} {
+  execsql {
+    DELETE FROM t1;
+    DELETE FROM t2;
+    DELETE FROM t3;
+  }
+  sqlite3session S db main
+  eval $setup
+
+  do_execsql_test 1.$tn.1 {
+    INSERT INTO t2 VALUES(2, 'two');
+    INSERT INTO t1 VALUES(1, 'one');
+    INSERT INTO t3 VALUES(3, 'three');
+  }
+
+  do_changeset_test 1.1.$tn.2 S $result
+  do_patchset_test  1.1.$tn.3 S $result
+
+  S delete
+}
+
+foreach {tn setup result} {
+  1 {
+    S attach *
+  } {
+    {INSERT t2 0 X. {} {i 4 t four}} 
+    {INSERT t2 0 X. {} {i 5 t five}}
+    {INSERT t1 0 X. {} {i 1 t one}} 
+    {INSERT t3 0 X. {} {i 6 t six}}
+  }
+
+  2 {
+    S attach t1
+    S attach *
+  } {
+    {INSERT t1 0 X. {} {i 1 t one}} 
+    {INSERT t2 0 X. {} {i 4 t four}} 
+    {INSERT t2 0 X. {} {i 5 t five}}
+    {INSERT t3 0 X. {} {i 6 t six}}
+  }
+
+  3 {
+    S attach t3
+    S attach t2
+    S attach t1
+  } {
+    {INSERT t3 0 X. {} {i 6 t six}}
+    {INSERT t2 0 X. {} {i 4 t four}} 
+    {INSERT t2 0 X. {} {i 5 t five}}
+    {INSERT t1 0 X. {} {i 1 t one}} 
+  }
+} {
+  execsql {
+    DELETE FROM t1;
+    DELETE FROM t2;
+    DELETE FROM t3;
+  }
+  sqlite3session S db main
+  eval $setup
+
+  do_execsql_test 1.$tn.1 {
+    INSERT INTO t2 VALUES(2, 'two');
+    INSERT INTO t1 VALUES(1, 'one');
+    DELETE FROM t2;
+    INSERT INTO t2 VALUES(4, 'four');
+    INSERT INTO t2 VALUES(5, 'five');
+    INSERT INTO t3 VALUES(6, 'six');
+  }
+
+  do_changeset_test 1.2.$tn.2 S $result
+  do_patchset_test 1.2.$tn.2 S $result
+
+  S delete
+}
+
+#-------------------------------------------------------------------------
+# 2.* - invert()
+#
+
+foreach {tn setup result} {
+  1 {
+    S attach *
+  } {
+    {DELETE t2 0 X. {i 4 t four} {}} 
+    {DELETE t2 0 X. {i 5 t five} {}} 
+    {DELETE t1 0 X. {i 1 t one} {}}
+    {DELETE t3 0 X. {i 6 t six} {}} 
+  }
+
+  2 {
+    S attach t1
+    S attach *
+  } {
+    {DELETE t1 0 X. {i 1 t one} {}}
+    {DELETE t2 0 X. {i 4 t four} {}} 
+    {DELETE t2 0 X. {i 5 t five} {}} 
+    {DELETE t3 0 X. {i 6 t six} {}} 
+  }
+
+  3 {
+    S attach t3
+    S attach t2
+    S attach t1
+  } {
+    {DELETE t3 0 X. {i 6 t six} {}} 
+    {DELETE t2 0 X. {i 4 t four} {}} 
+    {DELETE t2 0 X. {i 5 t five} {}} 
+    {DELETE t1 0 X. {i 1 t one} {}}
+  }
+} {
+  execsql {
+    DELETE FROM t1;
+    DELETE FROM t2;
+    DELETE FROM t3;
+  }
+  sqlite3session S db main
+  eval $setup
+
+  do_execsql_test 1.$tn.1 {
+    INSERT INTO t2 VALUES(2, 'two');
+    INSERT INTO t1 VALUES(1, 'one');
+    DELETE FROM t2;
+    INSERT INTO t2 VALUES(4, 'four');
+    INSERT INTO t2 VALUES(5, 'five');
+    INSERT INTO t3 VALUES(6, 'six');
+  }
+
+  do_changeset_invert_test 2.$tn.2 S $result
+
+  S delete
+}
+
+#-------------------------------------------------------------------------
+# 3.* - concat()
+#
+foreach {tn setup1 sql1 setup2 sql2 result} {
+  1 {
+    S attach *
+  } {
+    INSERT INTO t1 VALUES(1, 'one');
+    INSERT INTO t2 VALUES(2, 'two');
+  } {
+    S attach t2
+    S attach t1
+  } {
+    INSERT INTO t1 VALUES(3, 'three');
+    INSERT INTO t2 VALUES(4, 'four');
+  } {
+    {INSERT t1 0 X. {} {i 1 t one}} 
+    {INSERT t1 0 X. {} {i 3 t three}} 
+    {INSERT t2 0 X. {} {i 2 t two}}
+    {INSERT t2 0 X. {} {i 4 t four}}
+  }
+
+  1 {
+    S attach t2
+    S attach t1
+  } {
+    INSERT INTO t1 VALUES(1, 'one');
+    INSERT INTO t2 VALUES(2, 'two');
+  } {
+    S attach *
+  } {
+    INSERT INTO t1 VALUES(3, 'three');
+    INSERT INTO t2 VALUES(4, 'four');
+  } {
+    {INSERT t2 0 X. {} {i 2 t two}}
+    {INSERT t2 0 X. {} {i 4 t four}}
+    {INSERT t1 0 X. {} {i 1 t one}} 
+    {INSERT t1 0 X. {} {i 3 t three}} 
+  }
+
+  1 {
+    S attach *
+  } {
+    INSERT INTO t2 VALUES(2, 'two');
+  } {
+    S attach *
+  } {
+    INSERT INTO t1 VALUES(3, 'three');
+    INSERT INTO t2 VALUES(4, 'four');
+    INSERT INTO t3 VALUES(5, 'five');
+  } {
+    {INSERT t2 0 X. {} {i 2 t two}}
+    {INSERT t2 0 X. {} {i 4 t four}}
+    {INSERT t1 0 X. {} {i 3 t three}} 
+    {INSERT t3 0 X. {} {i 5 t five}} 
+  }
+
+} {
+  execsql {
+    DELETE FROM t1;
+    DELETE FROM t2;
+    DELETE FROM t3;
+  }
+  sqlite3session S db main
+  eval $setup1
+  execsql $sql1
+  set c1 [S changeset]
+  S delete
+
+  sqlite3session S db main
+  eval $setup2
+  execsql $sql2
+  set c2 [S changeset]
+  S delete
+
+  set res [list]
+  sqlite3session_foreach x [sqlite3changeset_concat $c1 $c2] {
+    lappend res $x
+  }
+
+  do_test 3.$tn { set res } [list {*}$result]
+}
+
+
+finish_test
diff --git a/ext/session/sessionG.test b/ext/session/sessionG.test
new file mode 100644
index 0000000000000000000000000000000000000000..1ebcc926a5f4e26a271b0821aefb4d85893c6864
--- /dev/null
+++ b/ext/session/sessionG.test
@@ -0,0 +1,250 @@
+# 2016 March 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements regression tests for the sessions module.
+# Specifically, it tests that UNIQUE constraints are dealt with correctly.
+#
+
+
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] session_common.tcl]
+source $testdir/tester.tcl
+ifcapable !session {finish_test; return}
+set testprefix sessionG
+
+
+forcedelete test.db2
+sqlite3 db2 test.db2
+
+do_test 1.0 {
+  do_common_sql {
+    CREATE TABLE t1(a PRIMARY KEY, b UNIQUE);
+    INSERT INTO t1 VALUES(1, 'one');
+    INSERT INTO t1 VALUES(2, 'two');
+    INSERT INTO t1 VALUES(3, 'three');
+  }
+  do_then_apply_sql -ignorenoop {
+    DELETE FROM t1 WHERE a=1;
+    INSERT INTO t1 VALUES(4, 'one');
+  }
+  compare_db db db2
+} {}
+
+do_test 1.1 {
+  do_then_apply_sql -ignorenoop {
+    DELETE FROM t1 WHERE a=4;
+    INSERT INTO t1 VALUES(1, 'one');
+  }
+  compare_db db db2
+} {}
+
+do_test 1.2 {
+  execsql { INSERT INTO t1 VALUES(5, 'five') } db2
+  do_then_apply_sql -ignorenoop {
+    INSERT INTO t1 VALUES(11, 'eleven');
+    INSERT INTO t1 VALUES(12, 'five');
+  }
+  execsql { SELECT * FROM t1 } db2
+} {2 two 3 three 1 one 5 five 11 eleven}
+
+do_test 1.3 {
+  execsql { SELECT * FROM t1 }
+} {2 two 3 three 1 one 11 eleven 12 five}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+db2 close
+forcedelete test.db2
+sqlite3 db2 test.db2
+
+do_test 2.1 {
+  do_common_sql {
+    CREATE TABLE t1(a PRIMARY KEY, b UNIQUE, c UNIQUE);
+    INSERT INTO t1 VALUES(1, 1, 1);
+    INSERT INTO t1 VALUES(2, 2, 2);
+    INSERT INTO t1 VALUES(3, 3, 3);
+  }
+} {}
+
+do_test 2.2.1 {
+  # It is not possible to apply the changeset generated by the following
+  # SQL, as none of the three updated rows may be updated as part of the
+  # first pass.
+  do_then_apply_sql -ignorenoop {
+    UPDATE t1 SET b=0 WHERE a=1;
+    UPDATE t1 SET b=1 WHERE a=2;
+    UPDATE t1 SET b=2 WHERE a=3;
+    UPDATE t1 SET b=3 WHERE a=1;
+  }
+  db2 eval { SELECT a, b FROM t1 }
+} {1 1 2 2 3 3}
+do_test 2.2.2 { db eval { SELECT a, b FROM t1 } } {1 3 2 1 3 2}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+db2 close
+forcedelete test.db2
+sqlite3 db2 test.db2
+
+do_test 3.1 {
+  do_common_sql {
+    CREATE TABLE t1(a PRIMARY KEY, b UNIQUE, c UNIQUE);
+    INSERT INTO t1 VALUES(1, 1, 1);
+    INSERT INTO t1 VALUES(2, 2, 2);
+    INSERT INTO t1 VALUES(3, 3, 3);
+  }
+} {}
+
+do_test 3.3 {
+  do_then_apply_sql -ignorenoop {
+    UPDATE t1 SET b=4 WHERE a=3;
+    UPDATE t1 SET b=3 WHERE a=2;
+    UPDATE t1 SET b=2 WHERE a=1;
+  }
+  compare_db db db2
+} {}
+
+do_test 3.4 {
+  do_then_apply_sql -ignorenoop {
+    UPDATE t1 SET b=1 WHERE a=1;
+    UPDATE t1 SET b=2 WHERE a=2;
+    UPDATE t1 SET b=3 WHERE a=3;
+  }
+  compare_db db db2
+} {}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+db2 close
+forcedelete test.db2
+sqlite3 db2 test.db2
+
+do_test 4.1 {
+  do_common_sql {
+    CREATE TABLE t1(a PRIMARY KEY, b UNIQUE);
+    INSERT INTO t1 VALUES(1, 1);
+    INSERT INTO t1 VALUES(2, 2);
+    INSERT INTO t1 VALUES(3, 3);
+
+    CREATE TABLE t2(a PRIMARY KEY, b UNIQUE);
+    INSERT INTO t2 VALUES(1, 1);
+    INSERT INTO t2 VALUES(2, 2);
+    INSERT INTO t2 VALUES(3, 3);
+  }
+} {}
+
+do_test 4.2 {
+  do_then_apply_sql -ignorenoop {
+    UPDATE t1 SET b=4 WHERE a=3;
+    UPDATE t1 SET b=3 WHERE a=2;
+    UPDATE t1 SET b=2 WHERE a=1;
+
+    UPDATE t2 SET b=0 WHERE a=1;
+    UPDATE t2 SET b=1 WHERE a=2;
+    UPDATE t2 SET b=2 WHERE a=3;
+  }
+  compare_db db db2
+} {}
+
+do_test 4.3 {
+  do_then_apply_sql -ignorenoop {
+    UPDATE t1 SET b=1 WHERE a=1;
+    UPDATE t1 SET b=2 WHERE a=2;
+    UPDATE t1 SET b=3 WHERE a=3;
+
+    UPDATE t2 SET b=3 WHERE a=3;
+    UPDATE t2 SET b=2 WHERE a=2;
+    UPDATE t2 SET b=1 WHERE a=1;
+  }
+  compare_db db db2
+} {}
+
+#-------------------------------------------------------------------------
+reset_db 
+catch { db2 close }
+forcedelete test.db2
+sqlite3 db2 test.db2
+
+do_execsql_test 5.0.1 {
+  CREATE TABLE t1(a PRIMARY KEY, b, c);
+  CREATE TABLE t2(a, b, c PRIMARY KEY);
+  CREATE TABLE t3(a, b PRIMARY KEY, c);
+}
+do_execsql_test -db db2 5.0.2 {
+  CREATE TABLE t1(a PRIMARY KEY, b, c);
+  CREATE TABLE t2(a, b, c);
+  CREATE TABLE t3(a, b PRIMARY KEY, c);
+}
+
+do_test 5.1 {
+  do_then_apply_sql -ignorenoop {
+    INSERT INTO t1 VALUES(1, 2, 3);
+    INSERT INTO t2 VALUES(4, 5, 6);
+    INSERT INTO t3 VALUES(7, 8, 9);
+  }
+
+  db2 eval {
+    SELECT * FROM t1;
+    SELECT * FROM t2;
+    SELECT * FROM t3;
+  }
+} {1 2 3 7 8 9}
+
+#-------------------------------------------------------------------------
+
+reset_db 
+db func number_name number_name
+do_execsql_test 6.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+  CREATE UNIQUE INDEX t1b ON t1(b);
+  WITH s(i) AS (
+    SELECT 1
+    UNION ALL
+    SELECT i+1 FROM s WHERE i<1000
+  )
+  INSERT INTO t1 SELECT i, number_name(i) FROM s;
+}
+
+do_test 6.1 {
+  db eval BEGIN
+  set ::C [changeset_from_sql {
+    DELETE FROM t1;
+    WITH s(i) AS (
+        SELECT 1
+        UNION ALL
+        SELECT i+1 FROM s WHERE i<1000
+    )
+    INSERT INTO t1 SELECT i, number_name(i+1) FROM s;
+  }]
+  db eval ROLLBACK
+  execsql { SELECT count(*) FROM t1 WHERE number_name(a) IS NOT b }
+} {0}
+
+proc xConflict {args} { exit ; return "OMIT" }
+do_test 6.2 {
+  sqlite3changeset_apply db $C xConflict
+} {}
+
+do_execsql_test 6.3 { SELECT count(*) FROM t1; } {1000}
+do_execsql_test 6.4 { 
+  SELECT count(*) FROM t1 WHERE number_name(a+1) IS NOT b; 
+} {0}
+
+# db eval { SELECT * FROM t1 } { puts "$a || $b" }
+
+
+finish_test
diff --git a/ext/session/sessionH.test b/ext/session/sessionH.test
new file mode 100644
index 0000000000000000000000000000000000000000..e1b12571c694174af5e09a5de18835157a32e867
--- /dev/null
+++ b/ext/session/sessionH.test
@@ -0,0 +1,84 @@
+# 2018 January 18
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] session_common.tcl]
+source $testdir/tester.tcl
+ifcapable !session {finish_test; return}
+set testprefix sessionH
+
+forcedelete test.db2
+sqlite3 db2 test.db2
+
+do_test 1.0 {
+  do_common_sql {
+    CREATE TABLE t1(a, b, c, PRIMARY KEY(a, b));
+  }
+  do_then_apply_sql -ignorenoop {
+    WITH s(i) AS (
+      VALUES(1) UNION ALL SELECT i+1 FROM s WHERe i<10000
+    )
+    INSERT INTO t1 SELECT 'abcde', randomblob(16), i FROM s;
+  }
+  compare_db db db2
+} {}
+
+#------------------------------------------------------------------------
+db2 close
+reset_db
+
+do_execsql_test 2.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+  INSERT INTO main.t1 VALUES(1, 2, 3), (4, 5, 6), (7, 8, 9);
+}
+
+do_test 2.1 {
+  sqlite3session S db main
+  S attach *
+  db eval {
+    BEGIN;
+      INSERT INTO t1 VALUES(10, 11, 12);
+      DELETE FROM t1 WHERE a=1;
+      UPDATE t1 SET b='five', c='six' WHERE a=4;
+  }
+
+  set C [S changeset]
+  db eval ROLLBACK
+  S delete
+  set {} {}
+} {}
+
+do_execsql_test 2.2 {
+  CREATE TEMP TABLE t1(a INTEGER PRIMARY KEY, b, c);
+  INSERT INTO temp.t1 VALUES(1, 2, 3), (4, 5, 6), (7, 8, 9);
+}
+
+set ::conflict [list]
+proc xConflict {args} { lappend ::conflict $args ; return "" }
+do_test 2.3 {
+  sqlite3changeset_apply db $C xConflict
+  set ::conflict
+} {}
+do_execsql_test 2.4 {
+  SELECT * FROM main.t1;
+  SELECT '****';
+  SELECT * FROM temp.t1;
+} {
+  4 five six 7 8 9 10 11 12
+  ****
+  1 2 3 4 5 6 7 8 9
+}
+
+
+finish_test
diff --git a/ext/session/session_common.tcl b/ext/session/session_common.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..3ff84f1c5eb403c7b69dc0e461f1a02cedb195e5
--- /dev/null
+++ b/ext/session/session_common.tcl
@@ -0,0 +1,299 @@
+
+proc do_changeset_test {tn session res} {
+  set r [list]
+  foreach x $res {lappend r $x}
+  uplevel do_test $tn [list [subst -nocommands {
+    set x [list]
+    sqlite3session_foreach c [$session changeset] { lappend x [set c] }
+    set x
+  }]] [list $r]
+}
+
+proc do_patchset_test {tn session res} {
+  set r [list]
+  foreach x $res {lappend r $x}
+  uplevel do_test $tn [list [subst -nocommands {
+    set x [list]
+    sqlite3session_foreach c [$session patchset] { lappend x [set c] }
+    set x
+  }]] [list $r]
+}
+
+
+proc do_changeset_invert_test {tn session res} {
+  set r [list]
+  foreach x $res {lappend r $x}
+  uplevel do_test $tn [list [subst -nocommands {
+    set x [list]
+    set changeset [sqlite3changeset_invert [$session changeset]]
+    sqlite3session_foreach c [set changeset] { lappend x [set c] }
+    set x
+  }]] [list $r]
+}
+
+
+proc do_conflict_test {tn args} {
+
+  set O(-tables)    [list]
+  set O(-sql)       [list]
+  set O(-conflicts) [list]
+  set O(-policy)    "OMIT"
+
+  array set V $args
+  foreach key [array names V] {
+    if {![info exists O($key)]} {error "no such option: $key"}
+  }
+  array set O $args
+
+  proc xConflict {args} [subst -nocommands { 
+    lappend ::xConflict [set args]
+    return $O(-policy) 
+  }]
+  proc bgerror {args} { set ::background_error $args }
+
+  sqlite3session S db main
+  S object_config rowid 1
+  foreach t $O(-tables) { S attach $t }
+  execsql $O(-sql)
+
+  set ::xConflict [list]
+  sqlite3changeset_apply db2 [S changeset] xConflict
+
+  set conflicts [list]
+  foreach c $O(-conflicts) {
+    lappend conflicts $c
+  }
+
+  after 1 {set go 1}
+  vwait go
+
+  uplevel do_test $tn [list { set ::xConflict }] [list $conflicts]
+  S delete
+}
+
+proc do_common_sql {sql} {
+  execsql $sql db
+  execsql $sql db2
+}
+
+proc changeset_from_sql {sql {dbname main}} {
+  if {$dbname == "main"} {
+    return [sql_exec_changeset db $sql]
+  }
+  set rc [catch {
+    sqlite3session S db $dbname
+    S object_config rowid 1
+    db eval "SELECT name FROM $dbname.sqlite_master WHERE type = 'table'" {
+      S attach $name
+    }
+    db eval $sql
+    S changeset
+  } changeset]
+  catch { S delete }
+
+  if {$rc} {
+    error $changeset
+  }
+  return $changeset
+}
+
+proc patchset_from_sql {sql {dbname main}} {
+  set rc [catch {
+    sqlite3session S db $dbname
+    db eval "SELECT name FROM $dbname.sqlite_master WHERE type = 'table'" {
+      S attach $name
+    }
+    db eval $sql
+    S patchset
+  } patchset]
+  catch { S delete }
+
+  if {$rc} {
+    error $patchset
+  }
+  return $patchset
+}
+
+# Usage: do_then_apply_sql ?-ignorenoop? SQL ?DBNAME? 
+#
+proc do_then_apply_sql {args} {
+  
+  set bIgnoreNoop 0
+  set a1 [lindex $args 0]
+  if {[string length $a1]>1 && [string first $a1 -ignorenoop]==0} {
+    set bIgnoreNoop 1
+    set args [lrange $args 1 end]
+  }
+
+  if {[llength $args]!=1 && [llength $args]!=2} {
+    error "usage: do_then_apply_sql ?-ignorenoop? SQL ?DBNAME?"
+  }
+
+  set sql [lindex $args 0]
+  if {[llength $args]==1} {
+    set dbname main
+  } else {
+    set dbname [lindex $args 1]
+  }
+
+  set ::n_conflict 0
+  proc xConflict args { incr ::n_conflict ; return "OMIT" }
+  set rc [catch {
+    sqlite3session S db $dbname
+    S object_config rowid 1
+    db eval "SELECT name FROM $dbname.sqlite_master WHERE type = 'table'" {
+      S attach $name
+    }
+    db eval $sql
+    set ::changeset [S changeset]
+    sqlite3changeset_apply db2 $::changeset xConflict
+  } msg]
+
+  catch { S delete }
+  if {$rc} {error $msg}
+
+  if {$bIgnoreNoop} {
+    set nSave $::n_conflict
+    set ::n_conflict 0
+    proc xConflict args { incr ::n_conflict ; return "OMIT" }
+    sqlite3changeset_apply_v2 -ignorenoop db2 $::changeset xConflict
+    if {$::n_conflict!=$nSave} {
+      error "-ignorenoop problem ($::n_conflict $nSave)..."
+    }
+  }
+}
+
+proc do_iterator_test {tn tbl_list sql res} {
+  sqlite3session S db main
+  S object_config rowid 1
+
+  if {[llength $tbl_list]==0} { S attach * }
+  foreach t $tbl_list {S attach $t}
+
+  execsql $sql
+
+  set r [list]
+  foreach v $res { lappend r $v }
+
+  set x [list]
+# set ::c [S changeset] ; execsql_pp { SELECT quote($::c) }
+  sqlite3session_foreach c [S changeset] { lappend x $c }
+  uplevel do_test $tn [list [list set {} $x]] [list $r]
+
+  S delete
+}
+
+# Compare the contents of all tables in [db1] and [db2]. Throw an error if 
+# they are not identical, or return an empty string if they are.
+#
+proc compare_db {db1 db2} {
+
+  set sql {SELECT name FROM sqlite_master WHERE type = 'table' ORDER BY name}
+  set lot1 [$db1 eval $sql]
+  set lot2 [$db2 eval $sql]
+
+  if {$lot1 != $lot2} { 
+    puts $lot1
+    puts $lot2
+    error "databases contain different tables" 
+  }
+
+  foreach tbl $lot1 {
+    set col1 [list]
+    set col2 [list]
+
+    $db1 eval "PRAGMA table_info = $tbl" { lappend col1 $name }
+    $db2 eval "PRAGMA table_info = $tbl" { lappend col2 $name }
+    if {$col1 != $col2} { error "table $tbl schema mismatch" }
+
+    set sql "SELECT * FROM $tbl ORDER BY [join $col1 ,]"
+    set data1 [$db1 eval $sql]
+    set data2 [$db2 eval $sql]
+    if {$data1 != $data2} { 
+      puts "$db1: $data1"
+      puts "$db2: $data2"
+      error "table $tbl data mismatch" 
+    }
+  }
+
+  return ""
+}
+
+proc changeset_to_list {c} {
+  set list [list]
+  sqlite3session_foreach elem $c { lappend list $elem }
+  lsort $list
+}
+
+set ones {zero one two three four five six seven eight nine
+          ten eleven twelve thirteen fourteen fifteen sixteen seventeen
+          eighteen nineteen}
+set tens {{} ten twenty thirty forty fifty sixty seventy eighty ninety}
+proc number_name {n} {
+  if {$n>=1000} {
+    set txt "[number_name [expr {$n/1000}]] thousand"
+    set n [expr {$n%1000}]
+  } else {
+    set txt {}
+  }
+  if {$n>=100} {
+    append txt " [lindex $::ones [expr {$n/100}]] hundred"
+    set n [expr {$n%100}]
+  }
+  if {$n>=20} {
+    append txt " [lindex $::tens [expr {$n/10}]]"
+    set n [expr {$n%10}]
+  }
+  if {$n>0} {
+    append txt " [lindex $::ones $n]"
+  }
+  set txt [string trim $txt]
+  if {$txt==""} {set txt zero}
+  return $txt
+}
+
+proc scksum {db dbname} {
+
+  if {$dbname=="temp"} {
+    set master sqlite_temp_master
+  } else {
+    set master $dbname.sqlite_master
+  }
+
+  set alltab [$db eval "SELECT name FROM $master WHERE type='table'"]
+  set txt [$db eval "SELECT * FROM $master ORDER BY type,name,sql"]
+  foreach tab $alltab {
+    set cols [list]
+    db eval "PRAGMA $dbname.table_info = $tab" x { 
+      lappend cols "quote($x(name))" 
+    }
+    set cols [join $cols ,]
+    append txt [db eval "SELECT $cols FROM $dbname.$tab ORDER BY $cols"]
+  }
+  return [md5 $txt]
+}
+
+proc do_diff_test {tn setup} {
+  reset_db
+  forcedelete test.db2
+  execsql { ATTACH 'test.db2' AS aux }
+  execsql $setup
+
+  sqlite3session S db main
+  S object_config rowid 1
+  foreach tbl [db eval {SELECT name FROM sqlite_master WHERE type='table'}] {
+    S attach $tbl
+    S diff aux $tbl
+  }
+
+  set C [S changeset]
+  S delete
+
+  sqlite3 db2 test.db2
+  sqlite3changeset_apply db2 $C ""
+  uplevel do_test $tn.1 [list {execsql { PRAGMA integrity_check } db2}] ok
+  db2 close
+
+  set cksum [scksum db main]
+  uplevel do_test $tn.2 [list {scksum db aux}] [list $cksum]
+}
diff --git a/ext/session/session_speed_test.c b/ext/session/session_speed_test.c
new file mode 100644
index 0000000000000000000000000000000000000000..405001c6948b72c09da76eb365baa8b2501e534b
--- /dev/null
+++ b/ext/session/session_speed_test.c
@@ -0,0 +1,358 @@
+/*
+** 2017 January 31
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file contains the source code for a standalone program used to
+** test the performance of the sessions module. Compile and run:
+**
+**   ./session_speed_test -help
+**
+** for details.
+*/
+
+#include "sqlite3.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stddef.h>
+#include <unistd.h>
+
+/*************************************************************************
+** Start of generic command line parser.
+*/
+#define CMDLINE_BARE       0
+#define CMDLINE_INTEGER    1
+#define CMDLINE_STRING     2
+#define CMDLINE_BOOLEAN    3
+
+typedef struct CmdLineOption CmdLineOption;
+struct CmdLineOption {
+  const char *zText;              /* Name of command line option */
+  const char *zHelp;              /* Help text for option */
+  int eType;                      /* One of the CMDLINE_* values */
+  int iOff;                       /* Offset of output variable */
+};
+
+#define CMDLINE_INT32(x,y,z) {x, y, CMDLINE_INTEGER, z}
+#define CMDLINE_BOOL(x,y,z)  {x, y, CMDLINE_BOOLEAN, z}
+#define CMDLINE_TEXT(x,y,z)  {x, y, CMDLINE_STRING, z}
+#define CMDLINE_NONE(x,y,z)  {x, y, CMDLINE_BARE, z}
+
+static void option_requires_argument_error(CmdLineOption *pOpt){
+  fprintf(stderr, "Option requires a%s argument: %s\n", 
+      pOpt->eType==CMDLINE_INTEGER ? "n integer" :
+      pOpt->eType==CMDLINE_STRING ? " string" : " boolean",
+      pOpt->zText
+  );
+  exit(1);
+}
+
+static void ambiguous_option_error(const char *zArg){
+  fprintf(stderr, "Option is ambiguous: %s\n", zArg);
+  exit(1);
+}
+
+static void unknown_option_error(
+  const char *zArg, 
+  CmdLineOption *aOpt,
+  const char *zHelp
+){
+  int i;
+  fprintf(stderr, "Unknown option: %s\n", zArg);
+  fprintf(stderr, "\nOptions are:\n");
+  fprintf(stderr, "  % -30sEcho command line options\n", "-cmdline:verbose");
+  for(i=0; aOpt[i].zText; i++){
+    int eType = aOpt[i].eType;
+    char *zOpt = sqlite3_mprintf("%s %s", aOpt[i].zText,
+        eType==CMDLINE_BARE ? "" :
+        eType==CMDLINE_INTEGER ? "N" :
+        eType==CMDLINE_BOOLEAN ? "BOOLEAN" : "TEXT"
+    );
+    fprintf(stderr, "  % -30s%s\n", zOpt, aOpt[i].zHelp);
+    sqlite3_free(zOpt);
+  }
+  if( zHelp ){
+    fprintf(stderr, "\n%s\n", zHelp);
+  }
+  exit(1);
+}
+
+static int get_integer_option(CmdLineOption *pOpt, const char *zArg){
+  int i = 0;
+  int iRet = 0;
+  int bSign = 1;
+  if( zArg[0]=='-' ){
+    bSign = -1;
+    i = 1;
+  }
+  while( zArg[i] ){
+    if( zArg[i]<'0' || zArg[i]>'9' ) option_requires_argument_error(pOpt);
+    iRet = iRet*10 + (zArg[i] - '0');
+    i++;
+  }
+  return (iRet*bSign);
+}
+
+static int get_boolean_option(CmdLineOption *pOpt, const char *zArg){
+  if( 0==sqlite3_stricmp(zArg, "true") ) return 1;
+  if( 0==sqlite3_stricmp(zArg, "1") ) return 1;
+  if( 0==sqlite3_stricmp(zArg, "0") ) return 0;
+  if( 0==sqlite3_stricmp(zArg, "false") ) return 0;
+  option_requires_argument_error(pOpt);
+  return 0;
+}
+
+static void parse_command_line(
+  int argc, 
+  char **argv, 
+  int iStart,
+  CmdLineOption *aOpt,
+  void *pStruct,
+  const char *zHelp
+){
+  char *pOut = (char*)pStruct;
+  int bVerbose = 0;
+  int iArg;
+
+  for(iArg=iStart; iArg<argc; iArg++){
+    const char *zArg = argv[iArg];
+    int nArg = strlen(zArg);
+    int nMatch = 0;
+    int iOpt;
+
+    for(iOpt=0; aOpt[iOpt].zText; iOpt++){
+      CmdLineOption *pOpt = &aOpt[iOpt];
+      if( 0==sqlite3_strnicmp(pOpt->zText, zArg, nArg) ){
+        if( nMatch ){
+          ambiguous_option_error(zArg);
+        }
+        nMatch++;
+        if( pOpt->eType==CMDLINE_BARE ){
+          *(int*)(&pOut[pOpt->iOff]) = 1;
+        }else{
+          iArg++;
+          if( iArg==argc ){
+            option_requires_argument_error(pOpt);
+          }
+          switch( pOpt->eType ){
+            case CMDLINE_INTEGER:
+              *(int*)(&pOut[pOpt->iOff]) = get_integer_option(pOpt, argv[iArg]);
+              break;
+            case CMDLINE_STRING:
+              *(const char**)(&pOut[pOpt->iOff]) = argv[iArg];
+              break;
+            case CMDLINE_BOOLEAN:
+              *(int*)(&pOut[pOpt->iOff]) = get_boolean_option(pOpt, argv[iArg]);
+              break;
+          }
+        }
+      }
+    }
+
+    if( nMatch==0 && 0==sqlite3_strnicmp("-cmdline:verbose", zArg, nArg) ){
+      bVerbose = 1;
+      nMatch = 1;
+    }
+
+    if( nMatch==0 ){
+      unknown_option_error(zArg, aOpt, zHelp);
+    }
+  }
+
+  if( bVerbose ){
+    int iOpt;
+    fprintf(stdout, "Options are: ");
+    for(iOpt=0; aOpt[iOpt].zText; iOpt++){
+      CmdLineOption *pOpt = &aOpt[iOpt];
+      if( pOpt->eType!=CMDLINE_BARE || *(int*)(&pOut[pOpt->iOff]) ){
+        fprintf(stdout, "%s ", pOpt->zText);
+      }
+      switch( pOpt->eType ){
+        case CMDLINE_INTEGER:
+          fprintf(stdout, "%d ", *(int*)(&pOut[pOpt->iOff]));
+          break;
+        case CMDLINE_BOOLEAN:
+          fprintf(stdout, "%d ", *(int*)(&pOut[pOpt->iOff]));
+          break;
+        case CMDLINE_STRING:
+          fprintf(stdout, "%s ", *(const char**)(&pOut[pOpt->iOff]));
+          break;
+      }
+    }
+    fprintf(stdout, "\n");
+  }
+}
+/* 
+** End of generic command line parser.
+*************************************************************************/
+
+static void abort_due_to_error(int rc){
+  fprintf(stderr, "Error: %d\n");
+  exit(-1);
+}
+
+static void execsql(sqlite3 *db, const char *zSql){
+  int rc = sqlite3_exec(db, zSql, 0, 0, 0);
+  if( rc!=SQLITE_OK ) abort_due_to_error(rc);
+}
+
+static int xConflict(void *pCtx, int eConflict, sqlite3_changeset_iter *p){
+  return SQLITE_CHANGESET_ABORT;
+}
+
+static void run_test(
+  sqlite3 *db, 
+  sqlite3 *db2, 
+  int nRow, 
+  const char *zSql
+){
+  sqlite3_session *pSession = 0;
+  sqlite3_stmt *pStmt = 0;
+  int rc;
+  int i;
+  int nChangeset;
+  void *pChangeset;
+
+  /* Attach a session object to database db */
+  rc = sqlite3session_create(db, "main", &pSession);
+  if( rc!=SQLITE_OK ) abort_due_to_error(rc);
+
+  /* Configure the session to capture changes on all tables */
+  rc = sqlite3session_attach(pSession, 0);
+  if( rc!=SQLITE_OK ) abort_due_to_error(rc);
+
+  /* Prepare the SQL statement */
+  rc = sqlite3_prepare(db, zSql, -1, &pStmt, 0);
+  if( rc!=SQLITE_OK ) abort_due_to_error(rc);
+
+  /* Open a transaction */
+  execsql(db, "BEGIN");
+
+  /* Execute the SQL statement nRow times */
+  for(i=0; i<nRow; i++){
+    sqlite3_bind_int(pStmt, 1, i);
+    sqlite3_step(pStmt);
+    rc = sqlite3_reset(pStmt);
+    if( rc!=SQLITE_OK ) abort_due_to_error(rc);
+  }
+  sqlite3_finalize(pStmt);
+
+  /* Extract a changeset from the sessions object */
+  rc = sqlite3session_changeset(pSession, &nChangeset, &pChangeset);
+  if( rc!=SQLITE_OK ) abort_due_to_error(rc);
+  execsql(db, "COMMIT");
+
+  /* Apply the changeset to the second db */
+  rc = sqlite3changeset_apply(db2, nChangeset, pChangeset, 0, xConflict, 0);
+  if( rc!=SQLITE_OK ) abort_due_to_error(rc);
+
+  /* Cleanup */
+  sqlite3_free(pChangeset);
+  sqlite3session_delete(pSession);
+}
+
+int main(int argc, char **argv){
+  struct Options {
+    int nRow;
+    int bWithoutRowid;
+    int bInteger;
+    int bAll;
+    const char *zDb;
+  };
+  struct Options o = { 2500, 0, 0, 0, "session_speed_test.db" };
+
+  CmdLineOption aOpt[] = {
+    CMDLINE_INT32( "-rows", "number of rows in test",
+      offsetof(struct Options, nRow) ),
+    CMDLINE_BOOL("-without-rowid", "use WITHOUT ROWID tables", 
+      offsetof(struct Options, bWithoutRowid) ),
+    CMDLINE_BOOL("-integer", "use integer data (instead of text/blobs)",
+      offsetof(struct Options, bInteger) ),
+    CMDLINE_NONE("-all", "Run all 4 combos of -without-rowid and -integer",
+      offsetof(struct Options, bAll) ),
+    CMDLINE_TEXT("-database", "prefix for database files to use",
+      offsetof(struct Options, zDb) ),
+    {0, 0, 0, 0}
+  };
+
+  const char *azCreate[] = {
+    "CREATE TABLE t1(a PRIMARY KEY, b, c, d)",
+    "CREATE TABLE t1(a PRIMARY KEY, b, c, d) WITHOUT ROWID",
+  };
+
+  const char *azInsert[] = {
+    "INSERT INTO t1 VALUES("
+    "printf('%.8d',?), randomblob(50), randomblob(50), randomblob(50))",
+    "INSERT INTO t1 VALUES(?, random(), random(), random())"
+  };
+
+  const char *azUpdate[] = {
+    "UPDATE t1 SET d = randomblob(50) WHERE a = printf('%.8d',?)",
+    "UPDATE t1 SET d = random() WHERE a = ?"
+  };
+
+  const char *azDelete[] = {
+    "DELETE FROM t1 WHERE a = printf('%.8d',?)",
+    "DELETE FROM t1 WHERE a = ?"
+  };
+
+  int rc;
+  sqlite3 *db;
+  sqlite3 *db2;
+  char *zDb2;
+  int bWithoutRowid;
+  int bInteger;
+
+  parse_command_line(argc, argv, 1, aOpt, (void*)&o,
+    "This program creates two new, empty, databases each containing a single\n"
+    "table. It then does the following:\n\n"
+    "  1. Inserts -rows rows into the first database\n"
+    "  2. Updates each row in the first db\n"
+    "  3. Delete each row from the first db\n\n"
+    "The modifications made by each step are captured in a changeset and\n"
+    "applied to the second database.\n"
+  );
+  zDb2 = sqlite3_mprintf("%s2", o.zDb);
+
+  for(bWithoutRowid=0; bWithoutRowid<2; bWithoutRowid++){
+    for(bInteger=0; bInteger<2; bInteger++){
+      if( o.bAll || (o.bWithoutRowid==bWithoutRowid && o.bInteger==bInteger) ){
+        fprintf(stdout, "Testing %s data with %s table\n",
+            bInteger ? "integer" : "blob/text",
+            bWithoutRowid ? "WITHOUT ROWID" : "rowid"
+        );
+
+        /* Open new database handles on two empty databases */
+        unlink(o.zDb);
+        rc = sqlite3_open(o.zDb, &db);
+        if( rc!=SQLITE_OK ) abort_due_to_error(rc);
+        unlink(zDb2);
+        rc = sqlite3_open(zDb2, &db2);
+        if( rc!=SQLITE_OK ) abort_due_to_error(rc);
+
+        /* Create the schema in both databases. */
+        execsql(db, azCreate[o.bWithoutRowid]);
+        execsql(db2, azCreate[o.bWithoutRowid]);
+
+        /* Run the three tests */
+        run_test(db, db2, o.nRow, azInsert[o.bInteger]);
+        run_test(db, db2, o.nRow, azUpdate[o.bInteger]);
+        run_test(db, db2, o.nRow, azDelete[o.bInteger]);
+
+        /* Close the db handles */
+        sqlite3_close(db);
+        sqlite3_close(db2);
+      }
+    }
+  }
+
+
+  return 0;
+}
diff --git a/ext/session/sessionalter.test b/ext/session/sessionalter.test
new file mode 100644
index 0000000000000000000000000000000000000000..bcff7c5357d8ad7fb7368de0dc645002977f4986
--- /dev/null
+++ b/ext/session/sessionalter.test
@@ -0,0 +1,239 @@
+# 2023 October 02
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements that the sessions module interacts well with
+# the ALTER TABLE ADD COLUMN command.
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] session_common.tcl]
+source $testdir/tester.tcl
+
+ifcapable !session {finish_test; return}
+set testprefix sessionalter
+
+
+forcedelete test.db2
+sqlite3 db2 test.db2
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+}
+
+do_execsql_test -db db2 1.1 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c DEFAULT 1234);
+}
+
+do_then_apply_sql {
+  INSERT INTO t1 VALUES(1, 'one');
+  INSERT INTO t1 VALUES(2, 'two');
+}
+
+do_execsql_test -db db2 1.2 {
+  SELECT * FROM t1
+} {
+  1 one 1234
+  2 two 1234
+}
+
+do_then_apply_sql {
+  UPDATE t1 SET b='four' WHERE a=2;
+}
+
+do_execsql_test -db db2 1.3 {
+  SELECT * FROM t1
+} {
+  1 one 1234
+  2 four 1234
+}
+
+do_then_apply_sql {
+  DELETE FROM t1 WHERE a=1;
+}
+
+do_execsql_test -db db2 1.4 {
+  SELECT * FROM t1
+} {
+  2 four 1234
+}
+
+db2 close
+
+#--------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 2.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+}
+
+do_test 2.1 {
+  sqlite3session S db main
+  S attach t1
+  set {} {}
+} {} 
+do_execsql_test 2.2 {
+  INSERT INTO t1 VALUES(1, 2);
+  ALTER TABLE t1 ADD COLUMN c DEFAULT 'abcd';
+  INSERT INTO t1 VALUES(2, 3, 4);
+}
+do_changeset_test 2.3 S {
+  {INSERT t1 0 X.. {} {i 1 i 2 t abcd}} 
+  {INSERT t1 0 X.. {} {i 2 i 3 i 4}}
+}
+
+do_iterator_test 2.4 {} {
+  DELETE FROM t1 WHERE a=2;
+  ALTER TABLE t1 ADD COLUMN d DEFAULT 'abcd';
+  ALTER TABLE t1 ADD COLUMN e DEFAULT 5;
+  ALTER TABLE t1 ADD COLUMN f DEFAULT 7.2;
+  -- INSERT INTO t1 VALUES(9, 9, 9, 9);
+} {
+  {DELETE t1 0 X..... {i 2 i 3 i 4 t abcd i 5 f 7.2} {}}
+}
+
+#-------------------------------------------------------------------------
+# Tests of the sqlite3changegroup_xxx() APIs.
+#
+reset_db
+do_execsql_test 3.0 {
+  CREATE TABLE t1(x INTEGER PRIMARY KEY, y);
+  CREATE TABLE t2(x PRIMARY KEY, y);
+  CREATE TABLE t3(x, y);
+  CREATE TABLE t4(y PRIMARY KEY, x) WITHOUT ROWID;
+
+  INSERT INTO t1 VALUES(1, 2), (3, 4), (5, 6);
+  INSERT INTO t2 VALUES('one', 'two'), ('three', 'four'), ('five', 'six');
+  INSERT INTO t3 VALUES(1, 2), (3, 4), (5, 6);
+
+  INSERT INTO t4(x, y) VALUES(1, 2), (3, 4), (5, 6);
+}
+
+db_save_and_close
+foreach {tn sql1 at sql2} {
+  1 {
+    INSERT INTO t1(x, y) VALUES(7, 8);
+  } {
+    ALTER TABLE t1 ADD COLUMN z DEFAULT 10;
+  } {
+    UPDATE t1 SET y=11 WHERE x=7;
+  }
+
+  2 {
+    UPDATE t2 SET y='two.two' WHERE x='one';
+    DELETE FROM t2 WHERE x='five';
+    INSERT INTO t2(x, y) VALUES('seven', 'eight');
+  } {
+    ALTER TABLE t2 ADD COLUMN z;
+    ALTER TABLE t2 ADD COLUMN zz;
+  } {
+  }
+
+  3 {
+    DELETE FROM t2 WHERE x='five';
+  } {
+    ALTER TABLE t2 ADD COLUMN z DEFAULT 'xyz';
+  } {
+  }
+
+  4 {
+    UPDATE t2 SET y='two.two' WHERE x='three';
+  } {
+    ALTER TABLE t2 ADD COLUMN z;
+  } {
+    UPDATE t2 SET z='abc' WHERE x='one';
+  }
+
+  5* {
+    UPDATE t2 SET y='two.two' WHERE x='three';
+  } {
+    ALTER TABLE t2 ADD COLUMN z DEFAULT 'defu1';
+  } {
+  }
+
+  6* {
+    INSERT INTO t2(x, y) VALUES('nine', 'ten');
+  } {
+    ALTER TABLE t2 ADD COLUMN z;
+    ALTER TABLE t2 ADD COLUMN a DEFAULT 'eelve';
+    ALTER TABLE t2 ADD COLUMN b DEFAULT x'1234abcd';
+    ALTER TABLE t2 ADD COLUMN c DEFAULT 4.2;
+    ALTER TABLE t2 ADD COLUMN d DEFAULT NULL;
+  } {
+  }
+
+  7 {
+    INSERT INTO t3(x, y) VALUES(7, 8);
+    UPDATE t3 SET y='fourteen' WHERE x=1;
+    DELETE FROM t3 WHERE x=3;
+  } {
+    ALTER TABLE t3 ADD COLUMN c;
+  } {
+    INSERT INTO t3(x, y, c) VALUES(9, 10, 11);
+  }
+
+  8 {
+    INSERT INTO t4(x, y) VALUES(7, 8);
+    UPDATE t4 SET y='fourteen' WHERE x=1;
+    DELETE FROM t4 WHERE x=3;
+  } {
+    ALTER TABLE t4 ADD COLUMN c;
+  } {
+    INSERT INTO t4(x, y, c) VALUES(9, 10, 11);
+  }
+} {
+  foreach {tn2 cmd} {
+    1 changeset_from_sql
+    2 patchset_from_sql
+  } {
+    db_restore_and_reopen
+  
+    set C1 [$cmd $sql1]
+    execsql $at
+    set C2 [$cmd $sql2]
+  
+    sqlite3changegroup grp
+    grp schema db main
+    breakpoint
+    grp add $C1
+    grp add $C2
+    set T1 [grp output]
+    grp delete
+  
+    db_restore_and_reopen
+    execsql $at
+    set T2 [$cmd "$sql1 ; $sql2"]
+  
+    if {[string range $tn end end]!="*"} {
+      do_test 3.1.$tn.$tn2.1 { changeset_to_list $T1 } [changeset_to_list $T2]
+      set testname "$tn.$tn2"
+    } else {
+      set testname "[string range $tn 0 end-1].$tn2"
+    }
+  
+    db_restore_and_reopen
+    proc xConflict {args} { return "REPLACE" }
+    sqlite3changeset_apply_v2 db $T1 xConflict
+    set S1 [scksum db main]
+  
+    db_restore_and_reopen
+    sqlite3changeset_apply_v2 db $T2 xConflict
+    set S2 [scksum db main]
+  
+    # if { $tn==7 } { puts [changeset_to_list $T1] }
+  
+    do_test 3.1.$tn.2 { set S1 } $S2
+  }
+}
+
+
+finish_test
+
diff --git a/ext/session/sessionat.test b/ext/session/sessionat.test
new file mode 100644
index 0000000000000000000000000000000000000000..e14901e8b505e43c18f2f96140802565101fec90
--- /dev/null
+++ b/ext/session/sessionat.test
@@ -0,0 +1,308 @@
+# 2017 February 04
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests for the sessions module. Specifically, that a changeset can
+# be applied after ALTER TABLE ADD COLUMN has been used to add 
+# columns to tables.
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] session_common.tcl]
+source $testdir/tester.tcl
+ifcapable !session {finish_test; return}
+set testprefix sessionat
+
+# If SQLITE_OMIT_ALTERTABLE is defined, omit this file.
+ifcapable !altertable {
+  finish_test
+  return
+}
+
+db close
+sqlite3_shutdown
+test_sqlite3_log log
+proc log {code msg} { lappend ::log $code $msg }
+
+proc reset_test {} {
+  catch { db  close }
+  catch { db2 close }
+  forcedelete test.db test.db2
+  sqlite3 db test.db
+  sqlite3 db2 test.db2
+}
+
+
+# Run all tests in this file twice. Once with "WITHOUT ROWID", and once
+# with regular rowid tables.
+#
+# ?.1.*: Test that PK inconsistencies are detected if one or more of the PK
+#        columns are not present in the changeset.
+#
+# ?.2.*: Test that it is not possible to apply a changeset with N columns
+#        to a db with fewer than N columns.
+#
+# ?.3.*: Test some INSERT, UPDATE and DELETE operations that do not
+#        require conflict handling.
+#
+# ?.4.*: Test some INSERT, UPDATE and DELETE operations that do require 
+#        conflict handling.
+#
+# ?.5.*: Test that attempting to concat two changesets with different
+#        numbers of columns for the same table is an error.
+#
+foreach {tn trailing} {
+  sessionat-ipk ""
+  sessionat-wor " WITHOUT ROWID "
+} {
+eval [string map [list %WR% $trailing] {
+  reset_test
+
+  #-----------------------------------------------------------------------
+  do_execsql_test $tn.1.0 {
+    CREATE TABLE t1(a, b, PRIMARY KEY(a)) %WR%;
+  }
+  do_execsql_test -db db2 $tn.1.1 {
+    CREATE TABLE t1(a, b, c, PRIMARY KEY(a, c)) %WR%;
+  }
+  do_test $tn.1.2 {
+    set ::log {}
+    do_then_apply_sql { INSERT INTO t1 VALUES('one', 'two') }
+    set ::log
+  } [list \
+    SQLITE_SCHEMA {sqlite3changeset_apply(): primary key mismatch for table t1}
+  ]
+  do_execsql_test $tn.1.3 { SELECT * FROM t1 } {one two}
+  do_execsql_test -db db2 $tn.1.4 { SELECT * FROM t1 } {}
+
+  #-----------------------------------------------------------------------
+  do_execsql_test $tn.2.0 {
+    CREATE TABLE t2(x, y, z, PRIMARY KEY(x)) %WR%;
+  }
+  do_execsql_test -db db2 $tn.2.1 {
+    CREATE TABLE t2(x, y, PRIMARY KEY(x)) %WR%;
+  }
+  do_test $tn.2.2 {
+    db cache flush
+    set ::log {}
+    do_then_apply_sql { INSERT INTO t2 VALUES(1, 2, 3) }
+    set ::log
+  } [list SQLITE_SCHEMA \
+    {sqlite3changeset_apply(): table t2 has 2 columns, expected 3 or more}
+  ]
+  do_execsql_test $tn.2.3 { SELECT * FROM t2 } {1 2 3}
+  do_execsql_test -db db2 $tn.2.4 { SELECT * FROM t2 } {}
+
+  #-----------------------------------------------------------------------
+  do_execsql_test $tn.3.0 {
+    CREATE TABLE t3(a, b, PRIMARY KEY(b)) %WR%;
+  }
+  do_execsql_test -db db2 $tn.3.1 {
+    CREATE TABLE t3(a, b, c DEFAULT 'D', PRIMARY KEY(b)) %WR%;
+  }
+  do_test $tn.3.2 {
+    do_then_apply_sql -ignorenoop {
+      INSERT INTO t3 VALUES(1, 2);
+      INSERT INTO t3 VALUES(3, 4);
+      INSERT INTO t3 VALUES(5, 6);
+    };
+    db2 eval {SELECT * FROM t3}
+  } {1 2 D 3 4 D 5 6 D}
+  do_test $tn.3.3 {
+    do_then_apply_sql -ignorenoop {
+      UPDATE t3 SET a=45 WHERE b=4;
+      DELETE FROM t3 WHERE a=5;
+    };
+    db2 eval {SELECT * FROM t3}
+  } {1 2 D 45 4 D}
+
+  #-----------------------------------------------------------------------
+  # 4.1: INSERT statements
+  # 4.2: DELETE statements
+  # 4.3: UPDATE statements
+  #  
+  do_execsql_test $tn.4.1.0 {
+    CREATE TABLE t4(x INTEGER PRIMARY KEY, y) %WR%;
+  }
+  do_execsql_test -db db2 $tn.4.1.1 {
+    CREATE TABLE t4(x INTEGER PRIMARY KEY, y, z) %WR%;
+    INSERT INTO t4 VALUES(1, 2, 3);
+    INSERT INTO t4 VALUES(4, 5, 6);
+  }
+  do_conflict_test $tn.4.1.2 -tables t4 -sql {
+    INSERT INTO t4 VALUES(10, 20);
+    INSERT INTO t4 VALUES(4, 11);
+  } -conflicts {
+    {INSERT t4 CONFLICT {i 4 i 11} {i 4 i 5}}
+  }
+  do_execsql_test -db db2 $tn.4.1.3 {
+    SELECT * FROM t4 ORDER BY x
+  } {1 2 3 4 5 6 10 20 {}}
+  do_conflict_test $tn.4.1.4 -policy REPLACE -tables t4 -sql {
+    INSERT INTO t4 VALUES(1, 11);
+  } -conflicts {
+    {INSERT t4 CONFLICT {i 1 i 11} {i 1 i 2}}
+  }
+  do_execsql_test -db db2 $tn.4.1.5 {
+    SELECT * FROM t4 ORDER BY x
+  } {1 11 {} 4 5 6 10 20 {}}
+
+  do_execsql_test $tn.4.2.0 {
+    DELETE FROM t4;
+    INSERT INTO t4 VALUES(1, 'A');
+    INSERT INTO t4 VALUES(2, 'B');
+    INSERT INTO t4 VALUES(3, 'C');
+    INSERT INTO t4 VALUES(4, 'D');
+  }
+  do_execsql_test -db db2 $tn.4.2.1 {
+    DELETE FROM t4;
+    INSERT INTO t4 VALUES(1, 'A', 'a');
+    INSERT INTO t4 VALUES(3, 'C', 'c');
+    INSERT INTO t4 VALUES(4, 'E', 'd');
+  }
+  do_conflict_test $tn.4.2.2 -tables t4 -sql {
+    DELETE FROM t4 WHERE x=2;
+    DELETE FROM t4 WHERE x=4;
+  } -conflicts {
+    {DELETE t4 NOTFOUND {i 2 t B}}
+    {DELETE t4 DATA {i 4 t D} {i 4 t E}}
+  }
+
+  do_execsql_test $tn.4.3.0 {
+    CREATE TABLE t5(a, b, c PRIMARY KEY) %WR%;
+    INSERT INTO t5 VALUES(1,1,1), (2,2,2), (3,3,3), (4,4,4);
+  }
+  do_execsql_test -db db2 $tn.4.3.1 {
+    CREATE TABLE t5(a, b, c PRIMARY KEY, d CHECK(b!=10)) %WR%;
+    INSERT INTO t5 VALUES (2,2,2,2), (3,8,3,3), (4,4,4,4);
+  }
+  do_conflict_test $tn.4.3.2 -tables t5 -sql {
+    UPDATE t5 SET a=4 WHERE c=1;
+    UPDATE t5 SET b=9 WHERE c=3;
+    UPDATE t5 SET b=10 WHERE c=2;
+  } -conflicts {
+    {UPDATE t5 NOTFOUND {i 1 {} {} i 1} {i 4 {} {} {} {}}}
+    {UPDATE t5 DATA {{} {} i 3 i 3} {{} {} i 9 {} {}} {i 3 i 8 i 3}}
+    {UPDATE t5 CONSTRAINT {{} {} i 2 i 2} {{} {} i 10 {} {}}}
+  }
+  
+  #-----------------------------------------------------------------------
+  do_execsql_test $tn.5.0 {
+    CREATE TABLE t6(a, b, c, PRIMARY KEY(a, b)) %WR%;
+  }
+  do_execsql_test -db db2 $tn.5.1 {
+    CREATE TABLE t6(a, b, c, d, e, PRIMARY KEY(a, b)) %WR%;
+  }
+  do_test $tn.5.2 {
+    set c1 [sql_exec_changeset db {
+      INSERT INTO t6 VALUES(1, 1, 1);
+      INSERT INTO t6 VALUES(2, 2, 2);
+    }]
+    set c2 [sql_exec_changeset db2 {
+      INSERT INTO t6 VALUES(3, 3, 3, 3, 3);
+      INSERT INTO t6 VALUES(4, 4, 4, 4, 4);
+    }]
+    list [catch { sqlite3changeset_concat $c1 $c2} msg] $msg
+  } {1 SQLITE_SCHEMA}
+
+  #-----------------------------------------------------------------------
+  db2 close
+  sqlite3 db2 test.db
+  do_execsql_test $tn.6.0 {
+    CREATE TABLE t7(a INTEGER PRIMARY KEY, b) %WR%;
+    INSERT INTO t7 VALUES(1, 1);
+    INSERT INTO t7 VALUES(2, 2);
+    INSERT INTO t7 VALUES(3, 3);
+  }
+
+  do_test $tn.6.1 {
+    set c1 [sql_exec_changeset db {
+      INSERT INTO t7 VALUES(4, 4);
+      DELETE FROM t7 WHERE a=1;
+      UPDATE t7 SET b=222 WHERE a=2;
+    }]
+    set cinv [sqlite3changeset_invert $c1]
+    execsql { SELECT * FROM t7 }
+  } {2 222 3 3 4 4}
+
+  do_execsql_test -db db2 $tn.6.2 {
+    ALTER TABLE t7 ADD COLUMN c DEFAULT 'ccc'
+  }
+
+  proc xConfict {args} { return "OMIT" }
+  do_test $tn.6.3 {
+    sqlite3changeset_apply db $cinv xConflict
+    execsql { SELECT * FROM t7 }
+  } {1 1 ccc 2 2 ccc 3 3 ccc}
+
+  #-----------------------------------------------------------------------
+  reset_test
+  do_execsql_test $tn.7.0 {
+    CREATE TABLE t8(a PRIMARY KEY, b, c);
+  }
+  do_execsql_test -db db2 $tn.7.1 {
+    CREATE TABLE t8(a PRIMARY KEY, b, c, d DEFAULT 'D', e DEFAULT 'E');
+  }
+
+  do_then_apply_sql -ignorenoop {
+    INSERT INTO t8 VALUES(1, 2, 3);
+    INSERT INTO t8 VALUES(4, 5, 6);
+  }
+  do_execsql_test $tn.7.2.1 {
+    SELECT * FROM t8
+  } {1 2 3    4 5 6}
+  do_execsql_test -db db2 $tn.7.2.2 {
+    SELECT * FROM t8
+  } {1 2 3 D E   4 5 6 D E}
+
+  do_then_apply_sql -ignorenoop {
+    UPDATE t8 SET c=45 WHERE a=4;
+  }
+  do_execsql_test $tn.7.3.1 {
+    SELECT * FROM t8
+  } {1 2 3    4 5 45}
+  do_execsql_test -db db2 $tn.7.3.2 {
+    SELECT * FROM t8
+  } {1 2 3 D E   4 5 45 D E}
+
+  #-----------------------------------------------------------------------
+  reset_test
+  do_execsql_test $tn.8.0 {
+    CREATE TABLE t9(a PRIMARY KEY, b, c, d, e, f, g, h);
+  }
+  do_execsql_test -db db2 $tn.8.1 {
+    CREATE TABLE t9(a PRIMARY KEY, b, c, d, e, f, g, h, i, j, k, l);
+  }
+  do_then_apply_sql -ignorenoop {
+    INSERT INTO t9 VALUES(1, 2, 3, 4, 5, 6, 7, 8);
+  }
+  do_then_apply_sql {
+    UPDATE t9 SET h=450 WHERE a=1
+  }
+  do_execsql_test -db db2 $tn.8.2 {
+    SELECT * FROM t9
+  } {1 2 3 4 5 6 7 450 {} {} {} {}}
+  do_then_apply_sql -ignorenoop {
+    UPDATE t9 SET h=NULL
+  }
+  do_execsql_test -db db2 $tn.8.2 {
+    SELECT * FROM t9
+  } {1 2 3 4 5 6 7 {} {} {} {} {}}
+}]
+}
+
+catch { db close }
+catch { db2 close }
+sqlite3_shutdown
+test_sqlite3_log
+
+finish_test
diff --git a/ext/session/sessionbig.test b/ext/session/sessionbig.test
new file mode 100644
index 0000000000000000000000000000000000000000..462e21f61fca5d043f1c449fcb247435abc9055d
--- /dev/null
+++ b/ext/session/sessionbig.test
@@ -0,0 +1,108 @@
+# 2014 August 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements regression tests for sessions SQLite extension.
+# Specifically, this file contains tests for "patchset" changes.
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] session_common.tcl]
+source $testdir/tester.tcl
+ifcapable !session {finish_test; return}
+
+if {[permutation]=="session_strm" || [permutation]=="session_eec"} {
+  finish_test
+  return
+}
+
+if {$::tcl_platform(pointerSize)<8} {
+  finish_test
+  return
+}
+
+set testprefix sessionbig
+
+forcedelete test.db2
+sqlite3 db2 test.db2
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+}
+do_execsql_test -db db2 1.1 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+}
+
+do_test 1.2 {
+  do_then_apply_sql -ignorenoop {
+    INSERT INTO t1(b) VALUES( zeroblob(100*1000*1000) );
+    INSERT INTO t1(b) VALUES( zeroblob(100*1000*1000) );
+    INSERT INTO t1(b) VALUES( zeroblob(100*1000*1000) );
+    INSERT INTO t1(b) VALUES( zeroblob(100*1000*1000) );
+    INSERT INTO t1(b) VALUES( zeroblob(100*1000*1000) );
+
+    INSERT INTO t1(b) VALUES( zeroblob(100*1000*1000) );
+    INSERT INTO t1(b) VALUES( zeroblob(100*1000*1000) );
+    INSERT INTO t1(b) VALUES( zeroblob(100*1000*1000) );
+    INSERT INTO t1(b) VALUES( zeroblob(100*1000*1000) );
+    INSERT INTO t1(b) VALUES( zeroblob(100*1000*1000) );
+
+    INSERT INTO t1(b) VALUES( zeroblob(100*1000*1000) );
+    INSERT INTO t1(b) VALUES( zeroblob(100*1000*1000) );
+    INSERT INTO t1(b) VALUES( zeroblob(100*1000*1000) );
+    INSERT INTO t1(b) VALUES( zeroblob(100*1000*1000) );
+    INSERT INTO t1(b) VALUES( zeroblob(100*1000*1000) );
+  }
+} {}
+
+do_test 1.3 {
+  execsql { DELETE FROM t1 }
+  execsql2 { DELETE FROM t1 }
+} {}
+
+do_test 1.4 {
+  set rc [catch {
+  do_then_apply_sql -ignorenoop {
+    INSERT INTO t1(b) VALUES( zeroblob(100*1000*1000) );
+    INSERT INTO t1(b) VALUES( zeroblob(100*1000*1000) );
+    INSERT INTO t1(b) VALUES( zeroblob(100*1000*1000) );
+    INSERT INTO t1(b) VALUES( zeroblob(100*1000*1000) );
+    INSERT INTO t1(b) VALUES( zeroblob(100*1000*1000) );
+
+    INSERT INTO t1(b) VALUES( zeroblob(100*1000*1000) );
+    INSERT INTO t1(b) VALUES( zeroblob(100*1000*1000) );
+    INSERT INTO t1(b) VALUES( zeroblob(100*1000*1000) );
+    INSERT INTO t1(b) VALUES( zeroblob(100*1000*1000) );
+    INSERT INTO t1(b) VALUES( zeroblob(100*1000*1000) );
+
+    INSERT INTO t1(b) VALUES( zeroblob(100*1000*1000) );
+    INSERT INTO t1(b) VALUES( zeroblob(100*1000*1000) );
+    INSERT INTO t1(b) VALUES( zeroblob(100*1000*1000) );
+    INSERT INTO t1(b) VALUES( zeroblob(100*1000*1000) );
+    INSERT INTO t1(b) VALUES( zeroblob(100*1000*1000) );
+
+    INSERT INTO t1(b) VALUES( zeroblob(100*1000*1000) );
+    INSERT INTO t1(b) VALUES( zeroblob(100*1000*1000) );
+    INSERT INTO t1(b) VALUES( zeroblob(100*1000*1000) );
+    INSERT INTO t1(b) VALUES( zeroblob(100*1000*1000) );
+    INSERT INTO t1(b) VALUES( zeroblob(100*1000*1000) );
+
+    INSERT INTO t1(b) VALUES( zeroblob(100*1000*1000) );
+    INSERT INTO t1(b) VALUES( zeroblob(100*1000*1000) );
+  }
+  } msg]
+  list $rc $msg
+} {1 SQLITE_NOMEM}
+
+
+finish_test
+
diff --git a/ext/session/sessionblob.test b/ext/session/sessionblob.test
new file mode 100644
index 0000000000000000000000000000000000000000..ed7ec67b485700fe724b60b3c001cfe91708241f
--- /dev/null
+++ b/ext/session/sessionblob.test
@@ -0,0 +1,55 @@
+# 2024 November 04
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] session_common.tcl]
+source $testdir/tester.tcl
+ifcapable !session {finish_test; return}
+
+if {$::tcl_platform(pointerSize)<8} {
+  finish_test
+  return
+}
+
+set testprefix sessionblob
+
+forcedelete test.db2
+sqlite3 db2 test.db2
+
+set NBLOB 2000000
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+  INSERT INTO t1 VALUES(123, zeroblob($NBLOB));
+}
+
+do_test 1.1 {
+  sqlite3session S db main
+  S attach t1
+} {}
+
+set b2 [string repeat x 1000]
+do_test 1.2 {
+  set ::blob [db incrblob t1 b 123]
+  for {set ii 0} {$ii < $NBLOB} {incr ii [string length $b2]} {
+    seek $::blob $ii
+    puts -nonewline $::blob $b2
+  }
+  close $::blob
+} {}
+
+S delete
+
+finish_test
+
diff --git a/ext/session/sessionchange.test b/ext/session/sessionchange.test
new file mode 100644
index 0000000000000000000000000000000000000000..c1c28622effd45befe3c44ef14e2fce933458b63
--- /dev/null
+++ b/ext/session/sessionchange.test
@@ -0,0 +1,101 @@
+# 2011 March 07
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] session_common.tcl]
+source $testdir/tester.tcl
+ifcapable !session {finish_test; return}
+
+set testprefix sessionchange
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+}
+
+do_test 1.1 { 
+  set C [changeset_from_sql {
+    INSERT INTO t1 VALUES(1, 2, 3);
+    INSERT INTO t1 VALUES(10, 20, 30);
+  }]
+
+  set res [list]
+  set iter [sqlite3changeset_start $C]
+  while {[$iter next]=="SQLITE_ROW"} {
+    lappend res [$iter data]
+  }
+  $iter finalize
+
+  set res
+} [list \
+  {INSERT t1 0 X.. {} {i 10 i 20 i 30}}  \
+  {INSERT t1 0 X.. {} {i 1 i 2 i 3}}     \
+]
+
+
+do_test 1.2 {
+  sqlite3changegroup grp
+  set iter [sqlite3changeset_start $C]
+  while {[$iter next]=="SQLITE_ROW"} {
+    grp add_change $iter
+  }
+  $iter finalize
+
+  set res [list]
+  grp output
+  sqlite3session_foreach c [grp output] { lappend res $c }
+  grp delete
+  set res
+} [list \
+  {INSERT t1 0 X.. {} {i 10 i 20 i 30}}  \
+  {INSERT t1 0 X.. {} {i 1 i 2 i 3}}     \
+]
+
+do_test 1.3.1 {
+  set iter [sqlite3changeset_start $C]
+  sqlite3changegroup grp
+  list [catch { grp add_change $iter } msg] $msg
+} {1 SQLITE_ERROR}
+do_test 1.3.2 {
+  while {[$iter next]=="SQLITE_ROW"} { }
+  list [catch { grp add_change $iter } msg] $msg
+} {1 SQLITE_ERROR}
+grp delete
+$iter finalize
+
+do_test 1.4 {
+  set res [list]
+  set iter [sqlite3changeset_start -invert $C]
+  while {[$iter next]=="SQLITE_ROW"} {
+    lappend res [$iter data]
+  }
+  $iter finalize
+  set res
+} [list \
+  {DELETE t1 0 X.. {i 10 i 20 i 30} {}}   \
+  {DELETE t1 0 X.. {i 1 i 2 i 3} {}}      \
+]
+
+do_test 1.5 {
+  sqlite3changegroup grp
+  set iter [sqlite3changeset_start -invert $C]
+  $iter next
+  list [catch { grp add_change $iter } msg] $msg
+} {1 SQLITE_ERROR}
+$iter finalize
+grp delete
+
+
+
+finish_test
diff --git a/ext/session/sessionconflict.test b/ext/session/sessionconflict.test
new file mode 100644
index 0000000000000000000000000000000000000000..25b260299803a8c67898f8ccc9a8dd79b9b14e7e
--- /dev/null
+++ b/ext/session/sessionconflict.test
@@ -0,0 +1,76 @@
+# 2011 March 07
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] session_common.tcl]
+source $testdir/tester.tcl
+ifcapable !session {finish_test; return}
+
+set testprefix sessionconflict
+
+db close
+sqlite3_shutdown
+test_sqlite3_log log
+proc log {code msg} { puts "LOG $code $msg" }
+sqlite3 db test.db
+
+forcedelete test.db2
+sqlite3 db2 test.db2
+
+do_test 1.0 {
+  do_common_sql {
+    CREATE TABLE t1(a PRIMARY KEY, b, c UNIQUE);
+    INSERT INTO t1 VALUES(1, 1, 1);
+    INSERT INTO t1 VALUES(2, 2, 2);
+    INSERT INTO t1 VALUES(3, 3, 3);
+  }
+} {}
+
+do_execsql_test -db db2 1.1 {
+  INSERT INTO t1 VALUES(6, 6, 6);
+}
+
+proc xConflict {args} {
+  return "ABORT"
+}
+
+
+do_test 1.2 {
+  set chng [changeset_from_sql {
+    UPDATE t1 SET b=10, c=10 WHERE a=1;
+    UPDATE t1 SET b=444 WHERE a=2;
+    INSERT INTO t1 VALUES(4, 4, 4);
+    INSERT INTO t1 VALUES(5, 5, 5);
+    INSERT INTO t1 VALUES(6, 6, 6);
+  }]
+
+  execsql BEGIN db2
+  set res [list [catch { sqlite3changeset_apply db2 $chng xConflict } msg] $msg]
+  execsql ROLLBACK db2
+  set res
+} {1 SQLITE_ABORT}
+
+do_execsql_test -db db2 1.3 {
+  SELECT * FROM t1;
+} {
+  1 1 1
+  2 2 2
+  3 3 3
+  6 6 6
+}
+
+
+
+finish_test
diff --git a/ext/session/sessiondiff.test b/ext/session/sessiondiff.test
new file mode 100644
index 0000000000000000000000000000000000000000..461ce17c9efb875b69d60c555f13f032a3986345
--- /dev/null
+++ b/ext/session/sessiondiff.test
@@ -0,0 +1,114 @@
+# 2015-07-31
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests for the [sqldiff --changeset] command.
+#
+#
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+}
+source $testdir/tester.tcl
+ifcapable !session {finish_test; return}
+set testprefix sessiondiff
+
+set PROG [test_find_sqldiff]
+db close
+
+proc sqlesc {id} {
+  set ret "'[string map {' ''} $id]'"
+  set ret
+}
+
+proc database_cksum {db1} {
+  set txt ""
+
+  sqlite3 dbtmp $db1
+  foreach tbl [dbtmp eval {SELECT name FROM sqlite_master WHERE type='table'}] {
+    set cols [list]
+    dbtmp eval "PRAGMA table_info = [sqlesc $tbl]" { 
+      lappend cols "quote( $name )" 
+    }
+    append txt [dbtmp eval \
+      "SELECT [join $cols {||'.'||}] FROM [sqlesc $tbl] ORDER BY 1"
+    ]
+  }
+  dbtmp close
+
+  md5 $txt
+}
+
+proc readfile {filename} {
+  set fd [open $filename]
+  fconfigure $fd -translation binary
+  set data [read $fd]
+  close $fd
+  set data
+}
+
+proc get_changeset {db1 db2} {
+  exec $::PROG --changeset changeset.bin $db1 $db2
+  set bin [readfile changeset.bin]
+  return $bin
+}
+
+proc xConflict {args} { 
+  return "" 
+}
+
+proc do_changeset_test {tn sql1 sql2} {
+  forcedelete test.db123 test.db124 
+
+  sqlite3 db test.db123
+  db eval $sql1
+  db close
+
+  sqlite3 db test.db124
+  db eval $sql2
+
+  set cs [get_changeset test.db124 test.db123]
+  sqlite3changeset_apply db $cs xConflict
+  db close
+
+  set database_cksum1 [database_cksum test.db123]
+  set database_cksum2 [database_cksum test.db124]
+
+  uplevel [list \
+      do_test $tn [list string compare $database_cksum1 $database_cksum2] 0
+  ]
+}
+
+do_changeset_test 1.0 {
+  CREATE TABLE t1(x PRIMARY KEY);
+} {
+  CREATE TABLE t1(x PRIMARY KEY);
+}
+
+do_changeset_test 1.1 {
+  CREATE TABLE t1(x PRIMARY KEY);
+  CREATE TABLE t2(x PRIMARY KEY, y);
+  INSERT INTO t2 VALUES(1, 2);
+} {
+  CREATE TABLE t1(x PRIMARY KEY);
+  CREATE TABLE t2(x PRIMARY KEY, y);
+  INSERT INTO t2 VALUES(3, 4);
+}
+
+do_changeset_test 1.2 {
+  CREATE TABLE t2(a, b, c, PRIMARY KEY(b, c));
+  INSERT INTO t2 VALUES(1, 2, 3);
+  INSERT INTO t2 VALUES(4, 5, 6);
+} {
+  CREATE TABLE t2(a, b, c, PRIMARY KEY(b, c));
+  INSERT INTO t2 VALUES(1, 2, 11);
+  INSERT INTO t2 VALUES(7, 8, 9);
+}
+
+finish_test
diff --git a/ext/session/sessionfault.test b/ext/session/sessionfault.test
new file mode 100644
index 0000000000000000000000000000000000000000..9c1b2b9996530e6ddb69a33387cf9aee6b4cba64
--- /dev/null
+++ b/ext/session/sessionfault.test
@@ -0,0 +1,590 @@
+# 2011 Mar 21
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# The focus of this file is testing the session module.
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] session_common.tcl]
+source $testdir/tester.tcl
+ifcapable !session {finish_test; return}
+
+set testprefix sessionfault
+
+forcedelete test.db2
+sqlite3 db2 test.db2
+do_common_sql {
+  CREATE TABLE t1(a, b, c, PRIMARY KEY(a, b));
+  INSERT INTO t1 VALUES(1, 2, 3);
+  INSERT INTO t1 VALUES(4, 5, 6);
+}
+faultsim_save_and_close
+db2 close
+
+#-------------------------------------------------------------------------
+# Test OOM error handling when collecting and applying a simple changeset.
+#
+# Test 1.1 attaches tables individually by name to the session object. 
+# Whereas test 1.2 passes NULL to sqlite3session_attach() to attach all
+# tables.
+#
+do_faultsim_test 1.1 -faults oom-* -prep {
+  catch {db2 close}
+  catch {db close}
+  faultsim_restore_and_reopen
+  sqlite3 db2 test.db2
+} -body {
+  do_then_apply_sql -ignorenoop {
+    INSERT INTO t1 VALUES('a string value', 8, 9);
+    UPDATE t1 SET c = 10 WHERE a = 1;
+    DELETE FROM t1 WHERE a = 4;
+  }
+} -test {
+  faultsim_test_result {0 {}} {1 SQLITE_NOMEM}
+  faultsim_integrity_check
+  if {$testrc==0} { compare_db db db2 }
+}
+
+do_faultsim_test 1.2 -faults oom-* -prep {
+  catch {db2 close}
+  catch {db close}
+  faultsim_restore_and_reopen
+} -body {
+  sqlite3session S db main
+  S attach *
+  execsql {
+    INSERT INTO t1 VALUES('a string value', 8, 9);
+    UPDATE t1 SET c = 10 WHERE a = 1;
+    DELETE FROM t1 WHERE a = 4;
+  }
+  set ::changeset [S changeset]
+  set {} {}
+} -test {
+  catch { S delete }
+  faultsim_test_result {0 {}} {1 SQLITE_NOMEM}
+  faultsim_integrity_check
+  if {$testrc==0} { 
+    proc xConflict {args} { return "OMIT" }
+    sqlite3 db2 test.db2
+    sqlite3changeset_apply db2 $::changeset xConflict
+    compare_db db db2 
+  }
+}
+
+#-------------------------------------------------------------------------
+# The following block of tests - 2.* - are designed to check 
+# the handling of faults in the sqlite3changeset_apply() function.
+#
+catch {db close}
+catch {db2 close}
+forcedelete test.db2 test.db
+sqlite3 db2 test.db2
+sqlite3 db test.db
+do_common_sql {
+  CREATE TABLE t1(a, b, c, PRIMARY KEY(a, b));
+  INSERT INTO t1 VALUES('apple', 'orange', 'pear');
+
+  CREATE TABLE t2(x PRIMARY KEY, y);
+}
+db2 close
+faultsim_save_and_close
+
+
+foreach {tn conflict_policy sql sql2} {
+  1 OMIT { INSERT INTO t1 VALUES('one text', 'two text', X'00ff00') } {}
+  2 OMIT { DELETE FROM t1 WHERE a = 'apple' }                         {}
+  3 OMIT { UPDATE t1 SET c = 'banana' WHERE b = 'orange' }            {}
+  4 REPLACE { INSERT INTO t2 VALUES('keyvalue', 'value 1') } {
+    INSERT INTO t2 VALUES('keyvalue', 'value 2');
+  }
+} {
+  proc xConflict args [list return $conflict_policy]
+
+  do_faultsim_test 2.$tn -faults oom-transient -prep {
+    catch {db2 close}
+    catch {db close}
+    faultsim_restore_and_reopen
+    set ::changeset [changeset_from_sql $::sql]
+    sqlite3 db2 test.db2
+    sqlite3_db_config_lookaside db2 0 0 0
+    execsql $::sql2 db2
+  } -body {
+    sqlite3changeset_apply db2 $::changeset xConflict
+  } -test {
+    faultsim_test_result {0 {}} {1 SQLITE_NOMEM}
+    faultsim_integrity_check
+    if {$testrc==0} { compare_db db db2 }
+  }
+}
+
+#-------------------------------------------------------------------------
+# This test case is designed so that a malloc() failure occurs while
+# resizing the session object hash-table from 256 to 512 buckets. This
+# is not an error, just a sub-optimal condition.
+#
+do_faultsim_test 3 -faults oom-* -prep {
+  catch {db2 close}
+  catch {db close}
+  faultsim_restore_and_reopen
+  sqlite3 db2 test.db2
+
+  sqlite3session S db main
+  S attach t1
+  execsql { BEGIN }
+  for {set i 0} {$i < 125} {incr i} {
+    execsql {INSERT INTO t1 VALUES(10+$i, 10+$i, 10+$i)}
+  }
+} -body {
+  for {set i 125} {$i < 133} {incr i} {
+    execsql {INSERT INTO t1 VALUES(10+$i, 10+$i, 1-+$i)}
+  }
+  S changeset
+  set {} {}
+} -test {
+  faultsim_test_result {0 {}} {1 SQLITE_NOMEM}
+  if {$testrc==0} { 
+    sqlite3changeset_apply db2 [S changeset] xConflict
+    compare_db db db2 
+  }
+  catch { S delete }
+  faultsim_integrity_check
+}
+
+catch { db close }
+catch { db2 close }
+forcedelete test.db2 test.db
+sqlite3 db2 test.db2
+sqlite3 db test.db
+
+proc xConflict {op tbl type args} {
+  if { $type=="CONFLICT" || $type=="DATA" } {
+    return "REPLACE"
+  }
+  return "OMIT"
+}
+
+do_test 4.0 {
+  execsql {
+    PRAGMA encoding = 'utf16';
+    CREATE TABLE t1(a PRIMARY KEY, b);
+    INSERT INTO t1 VALUES(5, 32);
+  }
+  execsql {
+    PRAGMA encoding = 'utf16';
+    CREATE TABLE t1(a PRIMARY KEY, b NOT NULL);
+    INSERT INTO t1 VALUES(1, 2);
+    INSERT INTO t1 VALUES(2, 4);
+    INSERT INTO t1 VALUES(4, 16);
+  } db2
+} {}
+
+faultsim_save_and_close
+db2 close
+
+do_faultsim_test 4 -faults oom-* -prep {
+  catch {db2 close}
+  catch {db close}
+  faultsim_restore_and_reopen
+  sqlite3 db2 test.db2
+  sqlite3session S db main
+  S attach t1
+  execsql {
+    INSERT INTO t1 VALUES(1, 45);
+    INSERT INTO t1 VALUES(2, 55);
+    INSERT INTO t1 VALUES(3, 55);
+    UPDATE t1 SET a = 4 WHERE a = 5;
+  }
+} -body {
+  sqlite3changeset_apply db2 [S changeset] xConflict
+} -test {
+  catch { S delete }
+  faultsim_test_result {0 {}} {1 SQLITE_NOMEM}
+  if {$testrc==0} { compare_db db db2 }
+}
+
+#-------------------------------------------------------------------------
+# This block of tests verifies that OOM faults in the 
+# sqlite3changeset_invert() function are handled correctly.
+#
+catch {db close}
+catch {db2 close}
+forcedelete test.db
+sqlite3 db test.db
+execsql {
+  CREATE TABLE t1(a, b, PRIMARY KEY(b));
+  CREATE TABLE t2(a PRIMARY KEY, b);
+  INSERT INTO t1 VALUES('string', 1);
+  INSERT INTO t1 VALUES(4, 2);
+  INSERT INTO t1 VALUES(X'FFAAFFAAFFAA', 3);
+}
+set changeset [changeset_from_sql {
+  INSERT INTO t1 VALUES('xxx', 'yyy');
+  DELETE FROM t1 WHERE a = 'string';
+  UPDATE t1 SET a = 20 WHERE b = 2;
+}]
+db close
+
+do_faultsim_test 5.1 -faults oom* -body {
+  set ::inverse [sqlite3changeset_invert $::changeset]
+  set {} {}
+} -test {
+  faultsim_test_result {0 {}} {1 SQLITE_NOMEM}
+  if {$testrc==0} {
+    set x [list]
+    sqlite3session_foreach c $::inverse { lappend x $c }
+    foreach c {
+        {DELETE t1 0 .X {t xxx t yyy} {}} 
+        {INSERT t1 0 .X {} {t string i 1}} 
+        {UPDATE t1 0 .X {i 20 i 2} {i 4 {} {}}}
+    } { lappend y $c }
+    if {$x != $y} { error "changeset no good" }
+  }
+}
+
+catch {db close}
+catch {db2 close}
+forcedelete test.db
+sqlite3 db test.db
+execsql {
+  CREATE TABLE t2(a PRIMARY KEY, b);
+  INSERT INTO t2 VALUES(1, 'abc');
+  INSERT INTO t2 VALUES(2, 'def');
+}
+set changeset [changeset_from_sql {
+  UPDATE t2 SET b = (b || b || b || b);
+  UPDATE t2 SET b = (b || b || b || b);
+  UPDATE t2 SET b = (b || b || b || b);
+  UPDATE t2 SET b = (b || b || b || b);
+}]
+db close
+set abc [string repeat abc 256]
+set def [string repeat def 256]
+
+do_faultsim_test 5.2 -faults oom-tra* -body {
+  set ::inverse [sqlite3changeset_invert $::changeset]
+  set {} {}
+} -test {
+  faultsim_test_result {0 {}} {1 SQLITE_NOMEM}
+  if {$testrc==0} {
+    set x [list]
+    sqlite3session_foreach c $::inverse { lappend x $c }
+    foreach c "
+        {UPDATE t2 0 X. {i 1 t $::abc} {{} {} t abc}}
+        {UPDATE t2 0 X. {i 2 t $::def} {{} {} t def}}
+    " { lappend y $c }
+    if {$x != $y} { error "changeset no good" }
+  }
+}
+
+catch {db close}
+catch {db2 close}
+forcedelete test.db
+sqlite3 db test.db
+set abc [string repeat abc 256]
+set def [string repeat def 256]
+execsql "
+  CREATE TABLE t2(a PRIMARY KEY, b);
+  INSERT INTO t2 VALUES(1, '$abc');
+"
+set changeset [changeset_from_sql "
+  INSERT INTO t2 VALUES(2, '$def');
+  DELETE FROM t2 WHERE a = 1;
+"]
+db close
+
+do_faultsim_test 5.3 -faults oom-tra* -body {
+  set ::inverse [sqlite3changeset_invert $::changeset]
+  set {} {}
+} -test {
+  faultsim_test_result {0 {}} {1 SQLITE_NOMEM}
+  if {$testrc==0} {
+    set x [list]
+    sqlite3session_foreach c $::inverse { lappend x $c }
+    foreach c "
+        {INSERT t2 0 X. {} {i 1 t $::abc}}
+        {DELETE t2 0 X. {i 2 t $::def} {}}
+    " { lappend y $c }
+    if {$x != $y} { error "changeset no good" }
+  }
+}
+
+#-------------------------------------------------------------------------
+# Test that OOM errors in sqlite3changeset_concat() are handled correctly.
+#
+catch {db close}
+forcedelete test.db
+sqlite3 db test.db
+do_execsql_test 5.prep1 {
+  CREATE TABLE t1(a, b, PRIMARY KEY(b));
+  CREATE TABLE t2(a PRIMARY KEY, b);
+  INSERT INTO t1 VALUES('string', 1);
+  INSERT INTO t1 VALUES(4, 2);
+  INSERT INTO t1 VALUES(X'FFAAFFAAFFAA', 3);
+}
+
+do_test 6.prep2 {
+  sqlite3session M db main
+  M attach *
+  set ::c2 [changeset_from_sql {
+    INSERT INTO t2 VALUES(randomblob(1000), randomblob(1000));
+    INSERT INTO t2 VALUES('one', 'two');
+    INSERT INTO t2 VALUES(1, NULL);
+    UPDATE t1 SET a = 5 WHERE a = 2;
+  }]
+  set ::c1 [changeset_from_sql {
+    DELETE FROM t2 WHERE a = 1;
+    UPDATE t1 SET a = 4 WHERE a = 2;
+    INSERT INTO t2 VALUES('x', 'y');
+  }]
+  set ::total [changeset_to_list [M changeset]]
+  M delete
+} {}
+
+do_faultsim_test 6 -faults oom-* -body {
+  set ::result [sqlite3changeset_concat $::c1 $::c2]
+  set {} {}
+} -test {
+  faultsim_test_result {0 {}} {1 SQLITE_NOMEM}
+  if {$testrc==0} {
+    set v [changeset_to_list $::result]
+    if {$v != $::total} { error "result no good" }
+  }
+}
+
+faultsim_delete_and_reopen
+do_execsql_test 7.prep1 {
+  CREATE TABLE t1(a, b, PRIMARY KEY(a));
+}
+faultsim_save_and_close
+
+unset -nocomplain res
+set res [list]
+for {set ::i 0} {$::i < 480} {incr ::i 4} {
+  lappend res "INSERT t1 0 X. {} {i $::i i $::i}"
+}
+set res [lsort $res]
+do_faultsim_test 7 -faults oom-transient -prep {
+  catch { S delete }
+  faultsim_restore_and_reopen
+  sqlite3session S db main
+  S attach *
+} -body {
+  for {set ::i 0} {$::i < 480} {incr ::i 4} {
+    execsql {INSERT INTO t1 VALUES($::i, $::i)}
+  }
+} -test {
+  faultsim_test_result {0 {}} {1 SQLITE_NOMEM}
+  if {$testrc==0} {
+    set cres [list [catch {changeset_to_list [S changeset]} msg] $msg]
+    S delete
+    if {$cres != "1 SQLITE_NOMEM" && $cres != "0 {$::res}"} {
+      error "Expected {0 $::res} Got {$cres}"
+    }
+  } else {
+    catch { S changeset }
+    catch { S delete }
+  }
+}
+
+faultsim_delete_and_reopen
+do_test 8.prep {
+  sqlite3session S db main
+  S attach *
+  execsql { 
+    CREATE TABLE t1(a, b, PRIMARY KEY(a)); 
+    INSERT INTO t1 VALUES(1, 2);
+    INSERT INTO t1 VALUES(3, 4);
+    INSERT INTO t1 VALUES(5, 6);
+  }
+  set ::changeset [S changeset]
+  S delete
+} {}
+
+set expected [normalize_list {
+  {INSERT t1 0 X. {} {i 1 i 2}} 
+  {INSERT t1 0 X. {} {i 3 i 4}} 
+  {INSERT t1 0 X. {} {i 5 i 6}}
+}]
+do_faultsim_test 8.1 -faults oom* -body {
+  set ::res [list]
+  sqlite3session_foreach -next v $::changeset { lappend ::res $v }
+  normalize_list $::res
+} -test {
+  faultsim_test_result [list 0 $::expected] {1 SQLITE_NOMEM}
+}
+do_faultsim_test 8.2 -faults oom* -body {
+  set ::res [list]
+  sqlite3session_foreach v $::changeset { lappend ::res $v }
+  normalize_list $::res
+} -test {
+  faultsim_test_result [list 0 $::expected] {1 SQLITE_NOMEM}
+}
+
+faultsim_delete_and_reopen
+do_test 9.1.prep {
+  execsql { 
+    PRAGMA encoding = 'utf16';
+    CREATE TABLE t1(a PRIMARY KEY, b);
+  }
+} {}
+faultsim_save_and_close
+
+set answers [list {0 {}} {1 SQLITE_NOMEM} \
+                  {1 {callback requested query abort}} \
+                  {1 {abort due to ROLLBACK}}]
+do_faultsim_test 9.1 -faults oom-transient -prep {
+  catch { unset ::c }
+  faultsim_restore_and_reopen
+  sqlite3session S db main
+  S attach *
+} -body {
+  execsql {
+    INSERT INTO t1 VALUES('abcdefghijklmnopqrstuv', 'ABCDEFGHIJKLMNOPQRSTUV');
+  }
+  set ::c [S changeset]
+  set {} {}
+} -test {
+  S delete
+  eval faultsim_test_result $::answers
+  if {[info exists ::c]} {
+    set expected [normalize_list {
+      {INSERT t1 0 X. {} {t abcdefghijklmnopqrstuv t ABCDEFGHIJKLMNOPQRSTUV}}
+    }]
+    if { [changeset_to_list $::c] != $expected } {
+      error "changeset mismatch"
+    }
+  }
+}
+
+faultsim_delete_and_reopen
+do_test 9.2.prep {
+  execsql { 
+    PRAGMA encoding = 'utf16';
+    CREATE TABLE t1(a PRIMARY KEY, b);
+    INSERT INTO t1 VALUES('abcdefghij', 'ABCDEFGHIJKLMNOPQRSTUV');
+  }
+} {}
+faultsim_save_and_close
+
+set answers [list {0 {}} {1 SQLITE_NOMEM} \
+                  {1 {callback requested query abort}} \
+                  {1 {abort due to ROLLBACK}}]
+do_faultsim_test 9.2 -faults oom-transient -prep {
+  catch { unset ::c }
+  faultsim_restore_and_reopen
+  sqlite3session S db main
+  S attach *
+} -body {
+  execsql {
+    UPDATE t1 SET b = 'xyz';
+  }
+  set ::c [S changeset]
+  set {} {}
+} -test {
+  S delete
+  eval faultsim_test_result $::answers
+  if {[info exists ::c]} {
+    set expected [normalize_list {
+      {UPDATE t1 0 X. {t abcdefghij t ABCDEFGHIJKLMNOPQRSTUV} {{} {} t xyz}}
+    }]
+    if { [changeset_to_list $::c] != $expected } {
+      error "changeset mismatch"
+    }
+  }
+}
+
+#-------------------------------------------------------------------------
+# Test that if a conflict-handler encounters an OOM in 
+# sqlite3_value_text() but goes on to return SQLITE_CHANGESET_REPLACE
+# anyway, the OOM is picked up by the sessions module.
+set bigstr [string repeat abcdefghij 100]
+faultsim_delete_and_reopen
+do_test 10.prep.1  {
+  execsql {
+    CREATE TABLE t1(a PRIMARY KEY, b);
+    INSERT INTO t1 VALUES($bigstr, $bigstr);
+  }
+
+  sqlite3session S db main
+  S attach *
+  execsql { UPDATE t1 SET b = b||'x' }
+  set C [S changeset]
+  S delete
+  execsql { UPDATE t1 SET b = b||'xyz' }
+} {}
+faultsim_save_and_close
+
+faultsim_restore_and_reopen
+do_test 10.prep.2  {
+  proc xConflict {args} { return "ABORT" }
+  list [catch { sqlite3changeset_apply db $C xConflict } msg] $msg
+} {1 SQLITE_ABORT}
+do_execsql_test 10.prep.3 { SELECT b=$bigstr||'x' FROM t1 } 0
+do_test 10.prep.4  {
+  proc xConflict {args} { return "REPLACE" }
+  list [catch { sqlite3changeset_apply db $C xConflict } msg] $msg
+} {0 {}}
+do_execsql_test 10.prep.5 { SELECT b=$bigstr||'x' FROM t1 } 1
+db close
+
+do_faultsim_test 10 -faults oom-tra* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  sqlite3changeset_apply_replace_all db $::C 
+} -test {
+  faultsim_test_result {0 {}} {1 SQLITE_NOMEM}
+  if {$testrc==0} {
+    if {[db one {SELECT b=$bigstr||'x' FROM t1}]==0} {
+      error "data does not look right"
+    }
+  }
+}
+
+#-------------------------------------------------------------------------
+# Test an OOM with an sqlite3changeset_apply() filter callback.
+#
+reset_db
+do_test 11.prep {
+  execsql {
+    CREATE TABLE t1(a PRIMARY KEY, b);
+    CREATE TABLE t2(x PRIMARY KEY, y);
+    BEGIN;
+  }
+
+  set ::cs [changeset_from_sql { 
+    INSERT INTO t1 VALUES(1, 2);
+    INSERT INTO t2 VALUES('x', 'y');
+  }]
+
+  execsql ROLLBACK
+  set {} {}
+} {}
+
+proc filter {x} { return [string equal t1 $x] } 
+faultsim_save_and_close
+
+do_faultsim_test 11 -faults oom-tra* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  sqlite3changeset_apply db $::cs {} filter
+} -test {
+  faultsim_test_result {0 {}} {1 SQLITE_NOMEM}
+  if {$testrc==0} {
+    if {[db eval {SELECT * FROM t1 UNION ALL SELECT * FROM t2}] != "1 2"} {
+      error "data does not look right"
+    }
+  }
+}
+
+
+finish_test
diff --git a/ext/session/sessionfault2.test b/ext/session/sessionfault2.test
new file mode 100644
index 0000000000000000000000000000000000000000..a2dc39e437f93ffe94d2bf3ccb0b560c7e972b24
--- /dev/null
+++ b/ext/session/sessionfault2.test
@@ -0,0 +1,284 @@
+# 2016 March 31
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# The focus of this file is testing the session module.
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] session_common.tcl]
+source $testdir/tester.tcl
+ifcapable !session {finish_test; return}
+set testprefix sessionfault2
+
+if 1 {
+
+do_execsql_test 1.0.0 {
+  CREATE TABLE t1(a PRIMARY KEY, b UNIQUE);
+  INSERT INTO t1 VALUES(1, 1);
+  INSERT INTO t1 VALUES(2, 2);
+  INSERT INTO t1 VALUES(3, 3);
+
+  CREATE TABLE t2(a PRIMARY KEY, b UNIQUE);
+  INSERT INTO t2 VALUES(1, 1);
+  INSERT INTO t2 VALUES(2, 2);
+  INSERT INTO t2 VALUES(3, 3);
+}
+faultsim_save_and_close
+
+faultsim_restore_and_reopen
+do_test 1.0.1 {
+  set ::C [changeset_from_sql {
+    UPDATE t1 SET b=4 WHERE a=3;
+    UPDATE t1 SET b=3 WHERE a=2;
+    UPDATE t1 SET b=2 WHERE a=1;
+    UPDATE t2 SET b=0 WHERE a=1;
+    UPDATE t2 SET b=1 WHERE a=2;
+    UPDATE t2 SET b=2 WHERE a=3;
+  }]
+  set {} {}
+} {}
+
+proc xConflict args { return "OMIT" }
+
+do_faultsim_test 1 -faults oom-p* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  sqlite3changeset_apply db $::C xConflict
+} -test {
+  faultsim_test_result {0 {}} {1 SQLITE_NOMEM}
+  faultsim_integrity_check
+
+  catch { db eval ROLLBACK }
+  set res [db eval {
+    SELECT * FROM t1;
+    SELECT * FROM t2;
+  }]
+
+  if {$testrc==0} {
+    if {$res != "1 2 2 3 3 4 1 0 2 1 3 2"} { error "data error" }
+  } else {
+    if {
+         $res != "1 2 2 3 3 4 1 0 2 1 3 2"
+      && $res != "1 1 2 2 3 3 1 1 2 2 3 3"
+    } { error "data error!! $res" }
+  }
+}
+
+#-------------------------------------------------------------------------
+# OOM when applying a changeset for which one of the tables has a name
+# 99 bytes in size. This happens to cause an extra malloc in within the
+# sessions_strm permutation.
+#
+reset_db
+set nm [string repeat t 99]
+do_execsql_test 2.0.0 [string map "%TBL% $nm" {
+  CREATE TABLE %TBL%(a PRIMARY KEY, b UNIQUE);
+}]
+faultsim_save_and_close
+
+faultsim_restore_and_reopen
+do_test 1.0.1 {
+  set ::C [changeset_from_sql [string map "%TBL% $nm" {
+    INSERT INTO %TBL% VALUES(1, 2);
+    INSERT INTO %TBL% VALUES(3, 4);
+  }]]
+  set {} {}
+} {}
+
+proc xConflict args { return "OMIT" }
+do_faultsim_test 2 -faults oom-p* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  sqlite3changeset_apply db $::C xConflict
+} -test {
+  faultsim_test_result {0 {}} {1 SQLITE_NOMEM}
+  faultsim_integrity_check
+}
+
+#-------------------------------------------------------------------------
+# OOM when collecting and apply a changeset that uses sqlite_stat1.
+#
+reset_db
+forcedelete test.db2
+sqlite3 db2 test.db2
+do_common_sql {
+  CREATE TABLE t1(a PRIMARY KEY, b UNIQUE, c);
+  CREATE INDEX i1 ON t1(c);
+  INSERT INTO t1 VALUES(1, 2, 3);
+  INSERT INTO t1 VALUES(4, 5, 6);
+  INSERT INTO t1 VALUES(7, 8, 9);
+  CREATE TABLE t2(a, b, c);
+  INSERT INTO t2 VALUES(1, 2, 3);
+  INSERT INTO t2 VALUES(4, 5, 6);
+  INSERT INTO t2 VALUES(7, 8, 9);
+  ANALYZE;
+}
+faultsim_save_and_close
+db2 close
+
+do_faultsim_test 1.1 -faults oom-* -prep {
+  catch {db2 close}
+  catch {db close}
+  faultsim_restore_and_reopen
+  sqlite3 db2 test.db2
+} -body {
+  do_then_apply_sql -ignorenoop {
+    INSERT INTO sqlite_stat1 VALUES('x', 'y', 45);
+    UPDATE sqlite_stat1 SET stat = 123 WHERE tbl='t1' AND idx='i1';
+    UPDATE sqlite_stat1 SET stat = 456 WHERE tbl='t2';
+  }
+} -test {
+  faultsim_test_result {0 {}} {1 SQLITE_NOMEM}
+  faultsim_integrity_check
+  if {$testrc==0} { compare_db db db2 }
+}
+
+#-------------------------------------------------------------------------
+# OOM when collecting and using a rebase changeset.
+#
+reset_db
+do_execsql_test 2.0 {
+  CREATE TABLE t3(a, b, c, PRIMARY KEY(b, c));
+  CREATE TABLE t4(x PRIMARY KEY, y, z);
+
+  INSERT INTO t3 VALUES(1, 2, 3);
+  INSERT INTO t3 VALUES(4, 2, 5);
+  INSERT INTO t3 VALUES(7, 2, 9);
+
+  INSERT INTO t4 VALUES('a', 'b', 'c');
+  INSERT INTO t4 VALUES('d', 'e', 'f');
+  INSERT INTO t4 VALUES('g', 'h', 'i');
+}
+faultsim_save_and_close
+db2 close
+
+proc xConflict {ret args} { return $ret }
+
+do_test 2.1 {
+  faultsim_restore_and_reopen
+  set C1 [changeset_from_sql {
+    INSERT INTO t3 VALUES(10, 11, 12);
+    UPDATE t4 SET y='j' WHERE x='g';
+    DELETE FROM t4 WHERE x='a';
+  }]
+
+  faultsim_restore_and_reopen
+  set C2 [changeset_from_sql {
+    INSERT INTO t3 VALUES(1000, 11, 12);
+    DELETE FROM t4 WHERE x='g';
+  }]
+
+  faultsim_restore_and_reopen
+  sqlite3changeset_apply db $C1 [list xConflict OMIT]
+  faultsim_save_and_close
+} {}
+
+do_faultsim_test 2.2 -faults oom* -prep {
+  catch {db2 close}
+  catch {db close}
+  faultsim_restore_and_reopen
+  sqlite3 db2 test.db2
+} -body {
+  set rebase [sqlite3changeset_apply_v2 db $::C2 [list xConflict OMIT]]
+  set {} {}
+} -test {
+  faultsim_test_result {0 {}} {1 SQLITE_NOMEM}
+}
+do_faultsim_test 2.3 -faults oom* -prep {
+  catch {db2 close}
+  catch {db close}
+  faultsim_restore_and_reopen
+  sqlite3 db2 test.db2
+} -body {
+  set rebase [sqlite3changeset_apply_v2 db $::C2 [list xConflict REPLACE]]
+  set {} {}
+} -test {
+  faultsim_test_result {0 {}} {1 SQLITE_NOMEM}
+}
+do_faultsim_test 2.4 -faults oom* -prep {
+  catch {db2 close}
+  catch {db close}
+  faultsim_restore_and_reopen
+  set ::rebase [sqlite3changeset_apply_v2 db $::C2 [list xConflict REPLACE]]
+} -body {
+  sqlite3rebaser_create R
+  R configure $::rebase
+  R rebase $::C1
+  set {} {}
+} -test {
+  catch { R delete } 
+  faultsim_test_result {0 {}} {1 SQLITE_NOMEM}
+}
+do_faultsim_test 2.5 -faults oom* -prep {
+  catch {db2 close}
+  catch {db close}
+  faultsim_restore_and_reopen
+  set ::rebase [sqlite3changeset_apply_v2 db $::C2 [list xConflict OMIT]]
+} -body {
+  sqlite3rebaser_create R
+  R configure $::rebase
+  R rebase $::C1
+  set {} {}
+} -test {
+  catch { R delete } 
+  faultsim_test_result {0 {}} {1 SQLITE_NOMEM}
+}
+
+}
+
+reset_db
+do_execsql_test 3.0 {
+  CREATE TABLE t1(x PRIMARY KEY, y, z);
+  INSERT INTO t1 VALUES(3, 1, 4);
+  INSERT INTO t1 VALUES(1, 5, 9);
+}
+faultsim_save_and_close
+
+proc xConflict {ret args} { return $ret }
+
+do_test 3.1 {
+  faultsim_restore_and_reopen
+
+  execsql { BEGIN; UPDATE t1 SET z=11; }
+  set C1 [changeset_from_sql {
+    UPDATE t1 SET z=10 WHERE x=1;
+  }]
+  execsql { ROLLBACK }
+
+  execsql { BEGIN; UPDATE t1 SET z=11; }
+  set C2 [changeset_from_sql {
+    UPDATE t1 SET z=55 WHERE x=1;
+  }]
+  execsql { ROLLBACK }
+
+  set ::rebase1 [sqlite3changeset_apply_v2 db $::C1 [list xConflict OMIT]]
+  set ::rebase2 [sqlite3changeset_apply_v2 db $::C2 [list xConflict OMIT]]
+  set {} {}
+  execsql { SELECT * FROM t1 }
+} {3 1 4 1 5 9}
+
+
+do_faultsim_test 3.2 -faults oom* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  sqlite3rebaser_create R
+  R configure $::rebase1
+  R configure $::rebase2
+  set {} {}
+} -test {
+  catch { R delete } 
+  faultsim_test_result {0 {}} {1 SQLITE_NOMEM}
+}
+
+
+finish_test
diff --git a/ext/session/sessionfault3.test b/ext/session/sessionfault3.test
new file mode 100644
index 0000000000000000000000000000000000000000..5af9c9ed7009e843699d2636e97544c71c8e9b90
--- /dev/null
+++ b/ext/session/sessionfault3.test
@@ -0,0 +1,83 @@
+# 2016 October 6
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# The focus of this file is testing the session module.
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] session_common.tcl]
+source $testdir/tester.tcl
+ifcapable !session {finish_test; return}
+set testprefix sessionfault3
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b, PRIMARY KEY(a));
+  INSERT INTO t1 VALUES(1, 2);
+  INSERT INTO t1 VALUES(3, 4);
+  INSERT INTO t1 VALUES('five', 'six');
+}
+
+set C1 [changeset_from_sql {
+  INSERT INTO t1 VALUES('seven', 'eight');
+  UPDATE t1 SET b=6 WHERE a='five';
+  DELETE FROM t1 WHERE a=1;
+}]
+
+do_execsql_test 1.1 {
+  ALTER TABLE t1 ADD COLUMN d DEFAULT 123;
+  ALTER TABLE t1 ADD COLUMN e DEFAULT 'string';
+}
+
+set C2 [changeset_from_sql {
+  UPDATE t1 SET e='new value' WHERE a='seven';
+  INSERT INTO t1 VALUES(0, 0, 0, 0);
+}]
+
+do_faultsim_test 1 -faults oom* -prep {
+  sqlite3changegroup G
+} -body {
+  G schema db main
+  G add $::C1
+  G add $::C2
+  G output
+  set {} {}
+} -test {
+  catch { G delete }
+  faultsim_test_result {0 {}} {1 SQLITE_NOMEM}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 2.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+  INSERT INTO t1 VALUES(1, 'one');
+  INSERT INTO t1 VALUES(2, 'two');
+  ALTER TABLE t1 ADD COLUMN c DEFAULT 'abcdefghijklmnopqrstuvwxyz';
+}
+faultsim_save_and_close
+
+do_faultsim_test 2 -faults oom-t* -prep {
+  faultsim_restore_and_reopen
+  db eval {SELECT * FROM sqlite_schema}
+} -body {
+  sqlite3session S db main
+  S attach *
+  execsql {
+    DELETE FROM t1 WHERE a = 1;
+  }
+} -test {
+  faultsim_test_result {0 {}} {1 SQLITE_NOMEM}
+  catch { S delete }
+}
+
+finish_test
diff --git a/ext/session/sessioninvert.test b/ext/session/sessioninvert.test
new file mode 100644
index 0000000000000000000000000000000000000000..b7c157d2e7c887d73811236cd60b6ec875109789
--- /dev/null
+++ b/ext/session/sessioninvert.test
@@ -0,0 +1,183 @@
+# 2018 October 18
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] session_common.tcl]
+source $testdir/tester.tcl
+ifcapable !session {finish_test; return}
+
+set testprefix sessioninvert
+
+proc iter_invert {C} {
+  set x [list]
+  sqlite3session_foreach -invert c $C { lappend x $c }
+  set x
+}
+
+proc do_invert_test {tn sql {iter {}}} {
+
+  forcecopy test.db test.db2
+  sqlite3 db2 test.db2
+
+  set C [changeset_from_sql $sql]
+
+  forcecopy test.db test.db3
+  sqlite3 db3 test.db3
+  uplevel [list do_test $tn.1 [list compare_db db db3] {}]
+
+  set I [sqlite3changeset_invert $C]
+  sqlite3changeset_apply db $I {}
+  uplevel [list do_test $tn.2 [list compare_db db db2] {}]
+  
+  sqlite3changeset_apply_v2 -invert db3 $C {}
+  uplevel [list do_test $tn.3 [list compare_db db db3] {}]
+
+  if {$iter!=""} {
+    uplevel [list do_test $tn.4 [list iter_invert $C] [list {*}$iter]]
+  }
+
+  catch { db2 close }
+  catch { db3 close }
+}
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a PRIMARY KEY, b, c);
+  CREATE TABLE t2(d, e, f, PRIMARY KEY(e, f));
+
+  INSERT INTO t1 VALUES(1, 'one', 'i');
+  INSERT INTO t1 VALUES(2, 'two', 'ii');
+  INSERT INTO t1 VALUES(3, 'three', 'iii');
+  INSERT INTO t1 VALUES(4, 'four', 'iv');
+  INSERT INTO t1 VALUES(5, 'five', 'v');
+  INSERT INTO t1 VALUES(6, 'six', 'vi');
+
+  INSERT INTO t2 SELECT * FROM t1;
+}
+
+do_invert_test 1.1 {
+  INSERT INTO t1 VALUES(7, 'seven', 'vii');
+} {
+  {DELETE t1 0 X.. {i 7 t seven t vii} {}}
+}
+
+do_invert_test 1.2 {
+  DELETE FROM t1 WHERE a<4;
+} {
+  {INSERT t1 0 X.. {} {i 1 t one t i}}
+  {INSERT t1 0 X.. {} {i 2 t two t ii}}
+  {INSERT t1 0 X.. {} {i 3 t three t iii}}
+}
+
+do_invert_test 1.3 {
+  UPDATE t1 SET c=5;
+} {
+  {UPDATE t1 0 X.. {i 1 {} {} i 5} {{} {} {} {} t i}}
+  {UPDATE t1 0 X.. {i 2 {} {} i 5} {{} {} {} {} t ii}}
+  {UPDATE t1 0 X.. {i 3 {} {} i 5} {{} {} {} {} t iii}}
+  {UPDATE t1 0 X.. {i 4 {} {} i 5} {{} {} {} {} t iv}}
+  {UPDATE t1 0 X.. {i 5 {} {} i 5} {{} {} {} {} t v}}
+  {UPDATE t1 0 X.. {i 6 {} {} i 5} {{} {} {} {} t vi}}
+}
+
+do_invert_test 1.4 {
+  UPDATE t1 SET b = a+1 WHERE a%2;
+  DELETE FROM t2;
+  INSERT INTO t1 VALUES(10, 'ten', NULL);
+}
+
+do_invert_test 1.5 {
+  UPDATE t2 SET d = d-1;
+} {
+  {UPDATE t2 0 .XX {i 2 t three t iii} {i 3 {} {} {} {}}}
+  {UPDATE t2 0 .XX {i 1 t two t ii} {i 2 {} {} {} {}}}
+  {UPDATE t2 0 .XX {i 5 t six t vi} {i 6 {} {} {} {}}}
+  {UPDATE t2 0 .XX {i 3 t four t iv} {i 4 {} {} {} {}}}
+  {UPDATE t2 0 .XX {i 0 t one t i} {i 1 {} {} {} {}}}
+  {UPDATE t2 0 .XX {i 4 t five t v} {i 5 {} {} {} {}}}
+}
+
+do_execsql_test 2.0 { 
+  ANALYZE;
+  PRAGMA writable_schema = 1;
+  DROP TABLE IF EXISTS sqlite_stat4;
+  SELECT * FROM sqlite_stat1;
+} {
+  t2 sqlite_autoindex_t2_1 {6 1 1} 
+  t1 sqlite_autoindex_t1_1 {6 1}
+}
+
+do_invert_test 2.1 {
+  INSERT INTO sqlite_stat1 VALUES('t3', 'idx2', '1 2 3');
+} {
+  {DELETE sqlite_stat1 0 XX. {t t3 t idx2 t {1 2 3}} {}}
+}
+
+do_invert_test 2.2 {
+  DELETE FROM sqlite_stat1;
+} {
+  {INSERT sqlite_stat1 0 XX. {} {t t1 t sqlite_autoindex_t1_1 t {6 1}}}
+  {INSERT sqlite_stat1 0 XX. {} {t t2 t sqlite_autoindex_t2_1 t {6 1 1}}}
+}
+
+do_invert_test 2.3 {
+  UPDATE sqlite_stat1 SET stat = 'hello world';
+}
+
+do_test 3.0 {
+  forcecopy test.db test.db2
+  sqlite3 db2 test.db2
+  set P [patchset_from_sql {
+    INSERT INTO t2 VALUES(1, 2, 3);
+    DELETE FROM t2 WHERE d = 3;
+  }]
+
+  list [catch { sqlite3changeset_apply_v2 -invert db2 $P {} } msg] $msg
+} {1 SQLITE_CORRUPT}
+
+do_test 3.1 {
+  list [catch { sqlite3session_foreach -invert db2 $P {} } msg] $msg
+} {1 SQLITE_CORRUPT}
+
+do_test 3.2 {
+  sqlite3changeset_apply_v2 db2 $P {} 
+  compare_db db db2
+} {}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 4.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b UNIQUE);
+  INSERT INTO t1 VALUES(1, 'one');
+  INSERT INTO t1 VALUES(2, 'two');
+  INSERT INTO t1 VALUES(3, 'three');
+  INSERT INTO t1 VALUES(4, 'four');
+}
+
+do_invert_test 4.1 {
+  DELETE FROM t1;
+  INSERT INTO t1 VALUES(1, 'two');
+  INSERT INTO t1 VALUES(2, 'five');
+  INSERT INTO t1 VALUES(3, 'one');
+  INSERT INTO t1 VALUES(4, 'three');
+} {
+  {UPDATE t1 0 X. {i 1 t two} {{} {} t one}}
+  {UPDATE t1 0 X. {i 2 t five} {{} {} t two}}
+  {UPDATE t1 0 X. {i 3 t one} {{} {} t three}} 
+  {UPDATE t1 0 X. {i 4 t three} {{} {} t four}}
+}
+
+
+finish_test
diff --git a/ext/session/sessionmem.test b/ext/session/sessionmem.test
new file mode 100644
index 0000000000000000000000000000000000000000..75b48623d0fdb8a0ae37007a0767ac15f49e8c22
--- /dev/null
+++ b/ext/session/sessionmem.test
@@ -0,0 +1,57 @@
+# 2020 December 23
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for the SQLite sessions module
+# Specifically, for the sqlite3session_memory_used() API.
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] session_common.tcl]
+source $testdir/tester.tcl
+ifcapable !session {finish_test; return}
+
+set testprefix sessionmem
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(i INTEGER PRIMARY KEY, x, y);
+  CREATE TABLE t2(i INTEGER, x, y, PRIMARY KEY(x, y));
+}
+
+do_test 1.1 {
+  sqlite3session S db main
+  S attach *
+} {}
+
+foreach {tn sql eRes} {
+  1 { INSERT INTO t1 VALUES(1, 2, 3) } 1
+  2 { UPDATE t1 SET x=5 }                    0
+  3 { UPDATE t1 SET i=5 }                    1
+  4 { DELETE FROM t1 }                       0
+  5 { INSERT INTO t1 VALUES(1, 2, 3) }       0
+  6 { INSERT INTO t1 VALUES(5, 2, 3) }       0
+  7 { INSERT INTO t2 VALUES('a', 'b', 'c') } 1
+  8 { INSERT INTO t2 VALUES('d', 'e', 'f') } 1
+  9 { UPDATE t2 SET i='e' }                  0
+} {
+  set mem1 [S memory_used]
+  do_test 1.2.$tn.(mu=$mem1) {
+    execsql $sql
+    set mem2 [S memory_used]
+    expr {$mem2 > $mem1}
+  } $eRes
+}
+
+do_test 1.3 {
+  S delete
+} {}
+
+finish_test
diff --git a/ext/session/sessionnoact.test b/ext/session/sessionnoact.test
new file mode 100644
index 0000000000000000000000000000000000000000..aa1cde4749a72e6287f1f72932efd02a4ad73725
--- /dev/null
+++ b/ext/session/sessionnoact.test
@@ -0,0 +1,111 @@
+# 2023 October 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] session_common.tcl]
+source $testdir/tester.tcl
+ifcapable !session {finish_test; return}
+
+set testprefix sessionnoact
+
+do_execsql_test 1.0 {
+  CREATE TABLE p1(a INTEGER PRIMARY KEY, b, c UNIQUE);
+  INSERT INTO p1 VALUES(1, 1, 'one');
+  INSERT INTO p1 VALUES(2, 2, 'two');
+  INSERT INTO p1 VALUES(3, 3, 'three');
+  INSERT INTO p1 VALUES(4, 4, 'four');
+}
+
+db_save
+
+set C [changeset_from_sql {
+  DELETE FROM p1 WHERE a=2;
+  UPDATE p1 SET c='six' WHERE a=3;
+  INSERT INTO p1 VALUES(5, 5, 'two');
+  INSERT INTO p1 VALUES(6, 6, 'three');
+}]
+
+db_restore_and_reopen
+
+do_execsql_test 1.1 {
+  CREATE TABLE c1(x INTEGER PRIMARY KEY, y,
+    FOREIGN KEY(y) REFERENCES p1(c) ON DELETE CASCADE ON UPDATE SET NULL
+  );
+
+  INSERT INTO c1 VALUES(10, 'one');
+  INSERT INTO c1 VALUES(20, 'two');
+  INSERT INTO c1 VALUES(30, 'three');
+  INSERT INTO c1 VALUES(40, 'four');
+}
+
+db_save
+
+do_execsql_test 1.2 {
+  PRAGMA foreign_keys = 1;
+}
+
+set ::nConflict 0
+proc conflict {args} {
+  incr ::nConflict
+  return "OMIT"
+}
+
+sqlite3changeset_apply_v2 db $C conflict
+
+do_execsql_test 1.3 {
+  SELECT * FROM c1
+} {
+  10 one
+  30 {}
+  40 four
+}
+
+db_restore_and_reopen
+
+do_execsql_test 1.4 {
+  PRAGMA foreign_keys = 1;
+}
+
+do_execsql_test 1.5 {
+  UPDATE p1 SET c=12345 WHERE a = 45;
+}
+
+breakpoint
+sqlite3changeset_apply_v2 -noaction db $C conflict
+do_execsql_test 1.6 {
+  SELECT * FROM c1
+} {
+  10 one
+  20 two
+  30 three
+  40 four
+}
+
+do_execsql_test 1.7 {
+  PRAGMA foreign_keys = 1;
+  UPDATE p1 SET c = 'ten' WHERE c='two';
+  SELECT * FROM c1;
+} {
+  10 one
+  20 {}
+  30 three
+  40 four
+}
+
+do_execsql_test 1.8 {
+  PRAGMA foreign_key_check
+}
+
+finish_test
diff --git a/ext/session/sessionnoop.test b/ext/session/sessionnoop.test
new file mode 100644
index 0000000000000000000000000000000000000000..16c60b7abff36436f3694e5ee3b3f5f2544664b3
--- /dev/null
+++ b/ext/session/sessionnoop.test
@@ -0,0 +1,187 @@
+# 2021 Februar 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] session_common.tcl]
+source $testdir/tester.tcl
+ifcapable !session {finish_test; return}
+
+set testprefix sessionnoop
+
+#-------------------------------------------------------------------------
+# Test plan:
+#
+#   1.*: Test that concatenating changesets cannot produce a noop UPDATE.
+#   2.*: Test that rebasing changesets cannot produce a noop UPDATE.
+#   3.*: Test that sqlite3changeset_apply() ignores noop UPDATE changes.
+#
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a PRIMARY KEY, b, c, d);
+  INSERT INTO t1 VALUES(1, 1, 1, 1);
+  INSERT INTO t1 VALUES(2, 2, 2, 2);
+  INSERT INTO t1 VALUES(3, 3, 3, 3);
+}
+
+proc do_concat_test {tn sql1 sql2 res} {
+  uplevel [list do_test $tn [subst -nocommands {
+    set C1 [changeset_from_sql {$sql1}]
+    set C2 [changeset_from_sql {$sql2}]
+    set C3 [sqlite3changeset_concat [set C1] [set C2]]
+    set got [list]
+    sqlite3session_foreach elem [set C3] { lappend got [set elem] }
+    set got
+  }] [list {*}$res]]
+}
+
+do_concat_test 1.1 {
+  UPDATE t1 SET c=c+1;
+} {
+  UPDATE t1 SET c=c-1;
+} {
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 2.0 {
+  CREATE TABLE t1(a PRIMARY KEY, b, c);
+  INSERT INTO t1 VALUES(1, 1, 1);
+  INSERT INTO t1 VALUES(2, 2, 2);
+  INSERT INTO t1 VALUES(3, 3, 3);
+}
+
+proc do_rebase_test {tn sql_local sql_remote conflict_res expected} {
+  proc xConflict {args} [list return $conflict_res]
+
+  uplevel [list \
+    do_test $tn [subst -nocommands {
+      execsql BEGIN
+        set c_remote [changeset_from_sql {$sql_remote}]
+      execsql ROLLBACK
+
+      execsql BEGIN
+        set c_local [changeset_from_sql {$sql_local}]
+        set base [sqlite3changeset_apply_v2 db [set c_remote] xConflict]
+      execsql ROLLBACK
+
+      sqlite3rebaser_create R
+      R config [set base]
+      set res [list]
+      sqlite3session_foreach elem [R rebase [set c_local]] { 
+        lappend res [set elem] 
+      }
+      R delete
+      set res
+    }] [list {*}$expected]
+  ]
+}
+
+do_rebase_test 2.1 {
+  UPDATE t1 SET c=2 WHERE a=1;              -- local
+} {
+  UPDATE t1 SET c=3 WHERE a=1;              -- remote
+} OMIT {
+  {UPDATE t1 0 X.. {i 1 {} {} i 3} {{} {} {} {} i 2}}
+}
+
+do_rebase_test 2.2 {
+  UPDATE t1 SET c=2 WHERE a=1;              -- local
+} {
+  UPDATE t1 SET c=3 WHERE a=1;              -- remote
+} REPLACE {
+}
+
+do_rebase_test 2.3.1 {
+  UPDATE t1 SET c=4 WHERE a=1;              -- local
+} {
+  UPDATE t1 SET c=4 WHERE a=1               -- remote
+} OMIT {
+  {UPDATE t1 0 X.. {i 1 {} {} i 4} {{} {} {} {} i 4}}
+}
+
+do_rebase_test 2.3.2 {
+  UPDATE t1 SET c=5 WHERE a=1;              -- local
+} {
+  UPDATE t1 SET c=5 WHERE a=1               -- remote
+} REPLACE {
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 3.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+  INSERT INTO t1 VALUES(1, 1, 1);
+  INSERT INTO t1 VALUES(2, 2, 2);
+  INSERT INTO t1 VALUES(3, 3, 3);
+  INSERT INTO t1 VALUES(4, 4, 4);
+}
+
+# Arg $pkstr contains one character for each column in the table. An
+# "X" for PK column, or a "." for a non-PK.
+#
+proc mk_tbl_header {name pkstr} {
+  set ret [binary format H2c 54 [string length $pkstr]]
+  foreach i [split $pkstr {}] {
+    if {$i=="X"} {
+      append ret [binary format H2 01]
+    } else {
+      if {$i!="."} {error "bad pkstr: $pkstr ($i)"}
+      append ret [binary format H2 00]
+    }
+  }
+  append ret $name
+  append ret [binary format H2 00]
+  set ret
+}
+
+proc mk_update_change {args} {
+  set ret [binary format H2H2 17 00]
+  foreach a $args {
+    if {$a==""} {
+      append ret [binary format H2 00]
+    } else {
+      append ret [binary format H2W 01 $a]
+    }
+  }
+  set ret
+}
+
+proc xConflict {args} { return "ABORT" }
+do_test 3.1 {
+  set    C [mk_tbl_header t1 X..]
+  append C [mk_update_change    1 {} 1   {} {}  500]
+  append C [mk_update_change    2 {} {}  {} {}  {}]
+  append C [mk_update_change    3 3  {}  {} 600 {}]
+  append C [mk_update_change    4 {} {}  {} {}  {}]
+
+  sqlite3changeset_apply_v2 db $C xConflict
+} {}
+do_execsql_test 3.2 {
+  SELECT * FROM t1
+} {
+  1 1 500
+  2 2 2
+  3 600 3
+  4 4 4
+}
+
+
+
+
+
+
+finish_test
+
diff --git a/ext/session/sessionnoop2.test b/ext/session/sessionnoop2.test
new file mode 100644
index 0000000000000000000000000000000000000000..e406c10ca154d659143955aec92aad02cf597953
--- /dev/null
+++ b/ext/session/sessionnoop2.test
@@ -0,0 +1,180 @@
+# 2011 March 07
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] session_common.tcl]
+source $testdir/tester.tcl
+ifcapable !session {finish_test; return}
+
+set testprefix sessionnoop2
+
+foreach {tn wo} {
+  1 ""
+  2 " WITHOUT ROWID "
+} {
+  reset_db
+  eval [string map [list %WO% $wo] {
+do_execsql_test $tn.1.0 {
+  CREATE TABLE t1(a PRIMARY KEY, b, c) %WO%;
+  INSERT INTO t1 VALUES('a', 'A', 'AAA');
+  INSERT INTO t1 VALUES('b', 'B', 'BBB');
+  INSERT INTO t1 VALUES('c', 'C', 'CCC');
+  INSERT INTO t1 VALUES('d', 'D', 'DDD');
+  INSERT INTO t1 VALUES('e', 'E', 'EEE');
+}
+
+forcedelete test.db2
+sqlite3 db2 test.db2
+
+do_execsql_test -db db2 $tn.1.1 {
+  CREATE TABLE t1(a PRIMARY KEY, b, c) %WO%;
+  INSERT INTO t1 VALUES('a', 'A', 'AAA');
+  INSERT INTO t1 VALUES('b', 'B', '123');
+  INSERT INTO t1 VALUES('c', 'C', 'CCC');
+  INSERT INTO t1 VALUES('e', 'E', 'EEE');
+  INSERT INTO t1 VALUES('f', 'F', 'FFF');
+}
+
+set C [changeset_from_sql {
+  UPDATE t1 SET c='123' WHERE a='b';
+  DELETE FROM t1 WHERE a='d';
+  INSERT INTO t1 VALUES('f', 'F', 'FFF');
+}]
+
+
+set ::conflict_list [list]
+proc xConflict {args} {
+  lappend ::conflict_list $args
+  return "OMIT"
+}
+do_test $tn.1.2 {
+  sqlite3changeset_apply_v2 db2 $C xConflict
+  set ::conflict_list
+} [list {*}{
+  {UPDATE t1 DATA {t b {} {} t BBB} {{} {} {} {} t 123} {t b t B t 123}}
+  {INSERT t1 CONFLICT {t f t F t FFF} {t f t F t FFF}}
+  {DELETE t1 NOTFOUND {t d t D t DDD}}
+}]
+do_test $tn.1.3 {
+  set ::conflict_list [list]
+  sqlite3changeset_apply_v2 db2 $C xConflict
+  set ::conflict_list
+} [list {*}{
+  {UPDATE t1 DATA {t b {} {} t BBB} {{} {} {} {} t 123} {t b t B t 123}}
+  {INSERT t1 CONFLICT {t f t F t FFF} {t f t F t FFF}}
+  {DELETE t1 NOTFOUND {t d t D t DDD}}
+}]
+
+do_test $tn.1.4 {
+  set ::conflict_list [list]
+  sqlite3changeset_apply_v2 -ignorenoop db2 $C xConflict
+  set ::conflict_list
+} {}
+
+do_execsql_test -db db2 1.5 {
+  UPDATE t1 SET b='G' WHERE a='f';
+  UPDATE t1 SET c='456' WHERE a='b';
+}
+
+do_test $tn.1.6 {
+  set ::conflict_list [list]
+  sqlite3changeset_apply_v2 -ignorenoop db2 $C xConflict
+  set ::conflict_list
+} [list {*}{
+  {UPDATE t1 DATA {t b {} {} t BBB} {{} {} {} {} t 123} {t b t B t 456}}
+  {INSERT t1 CONFLICT {t f t F t FFF} {t f t G t FFF}}
+}]
+
+db2 close
+
+#--------------------------------------------------------------------------
+
+reset_db
+forcedelete test.db2
+sqlite3 db2 test.db2
+do_execsql_test $tn.2.0 {
+  CREATE TABLE t1(a PRIMARY KEY, b) %WO%;
+}
+do_execsql_test -db db2 $tn.2.1 {
+  CREATE TABLE t1(a PRIMARY KEY, b, c DEFAULT 'val') %WO%;
+}
+
+do_test $tn.2.2 {
+  do_then_apply_sql -ignorenoop {
+    INSERT INTO t1 VALUES(1, 2);
+  }
+  do_then_apply_sql -ignorenoop {
+    UPDATE t1 SET b=2 WHERE a=1
+  }
+} {}
+
+db2 close
+
+}]
+}
+
+
+#-------------------------------------------------------------------------
+reset_db
+forcedelete test.db2
+do_execsql_test 3.0 {
+  CREATE TABLE xyz(a, b, c, PRIMARY KEY(a, b), UNIQUE(c));
+  ANALYZE;
+  WITH s(i) AS (
+    VALUES(1) UNION ALL SELECT i+1 FROM s WHERE i<100
+  )
+  INSERT INTO xyz SELECT i, i, i FROM s;
+  VACUUM INTO 'test.db2';
+}
+
+set C [changeset_from_sql { ANALYZE }]
+sqlite3 db2 test.db2
+
+set ::conflict_list [list]
+proc xConflict {args} { lappend ::conflict_list $args ; return "OMIT" }
+do_test 3.1 {
+  sqlite3changeset_apply_v2 db2 $C xConflict
+  set ::conflict_list
+} {}
+
+do_test 3.2 {
+  sqlite3changeset_apply_v2 -ignorenoop db2 $C xConflict
+  set ::conflict_list
+} {}
+
+do_test 3.3 {
+  sqlite3changeset_apply_v2 db2 $C xConflict
+  set ::conflict_list
+} [list {*}{
+  {INSERT sqlite_stat1 CONFLICT {t xyz t sqlite_autoindex_xyz_1 t {100 1 1}} {t xyz t sqlite_autoindex_xyz_1 t {100 1 1}}} 
+  {INSERT sqlite_stat1 CONFLICT {t xyz t sqlite_autoindex_xyz_2 t {100 1}} {t xyz t sqlite_autoindex_xyz_2 t {100 1}}}
+}]
+
+do_execsql_test -db db2 3.4 {
+  UPDATE sqlite_stat1 SET stat='200 1 1' WHERE idx='sqlite_autoindex_xyz_1';
+}
+
+do_test 3.5 {
+  set ::conflict_list [list]
+  sqlite3changeset_apply_v2 -ignorenoop db2 $C xConflict
+  set ::conflict_list
+} [list {*}{
+  {INSERT sqlite_stat1 CONFLICT {t xyz t sqlite_autoindex_xyz_1 t {100 1 1}} {t xyz t sqlite_autoindex_xyz_1 t {200 1 1}}} 
+}]
+
+
+
+finish_test
+
diff --git a/ext/session/sessionrebase.test b/ext/session/sessionrebase.test
new file mode 100644
index 0000000000000000000000000000000000000000..033348f9ce28e3d94edca4fec1937a4d5bafa0fb
--- /dev/null
+++ b/ext/session/sessionrebase.test
@@ -0,0 +1,552 @@
+# 2018 March 14
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] session_common.tcl]
+source $testdir/tester.tcl
+ifcapable !session {finish_test; return}
+
+set testprefix sessionrebase
+
+set ::lConflict [list]
+proc xConflict {args} {
+  set res [lindex $::lConflict 0]
+  set ::lConflict [lrange $::lConflict 1 end]
+  return $res
+}
+
+#-------------------------------------------------------------------------
+# The following test cases - 1.* - test that the rebase blobs output by
+# sqlite3_changeset_apply_v2 look correct in some simple cases. The blob
+# is itself a changeset, containing records determined as follows:
+#
+#   * For each conflict resolved with REPLACE, the rebase blob contains
+#     a DELETE record. All fields other than the PK fields are undefined.
+#
+#   * For each conflict resolved with OMIT, the rebase blob contains an
+#     INSERT record. For an INSERT or UPDATE operation, the indirect flag
+#     is clear and all updated fields are defined. For a DELETE operation,
+#     the indirect flag is set and all non-PK fields left undefined.
+#
+proc do_apply_v2_test {tn sql modsql conflict_handler res} {
+  
+  execsql BEGIN
+  sqlite3session S db main
+  S attach *
+  execsql $sql
+  set changeset [S changeset]
+  S delete
+  execsql ROLLBACK
+
+  execsql BEGIN
+  execsql $modsql
+  set ::lConflict $conflict_handler
+  set blob [sqlite3changeset_apply_v2 db $changeset xConflict]
+  execsql ROLLBACK
+
+  uplevel [list do_test $tn [list changeset_to_list $blob] [list {*}$res]]
+}
+
+
+set ::lConflict [list]
+proc xConflict {args} {
+  set res [lindex $::lConflict 0]
+  set ::lConflict [lrange $::lConflict 1 end]
+  return $res
+}
+
+# Take a copy of database test.db in file test.db2. Execute $sql1
+# against test.db and $sql2 against test.db2. Capture a changeset
+# for each. Then send the test.db2 changeset to test.db and apply
+# it with the conflict handlers in $conflict_handler. Patch the
+# test.db changeset and then execute it against test.db2. Test that
+# the two databases come out the same.
+#
+proc do_rebase_test {tn sql1 sql2 conflict_handler {testsql ""} {testres ""}} {
+
+  for {set i 1} {$i <= 2} {incr i} {
+    forcedelete test.db2 test.db2-journal test.db2-wal
+    forcecopy test.db test.db2
+    sqlite3 db2 test.db2
+
+    db eval BEGIN
+
+    sqlite3session S1 db main
+    S1 object_config rowid 1
+    S1 attach *
+    execsql $sql1 db
+    set c1 [S1 changeset]
+    S1 delete
+
+    if {$i==1} {
+      sqlite3session S2 db2 main
+      S2 object_config rowid 1
+      S2 attach *
+      execsql $sql2 db2
+      set c2 [S2 changeset]
+      S2 delete
+    } else {
+      set c2 [list]
+      foreach sql [split $sql2 ";"] {
+        if {[string is space $sql]} continue
+        sqlite3session S2 db2 main
+        S2 object_config rowid 1
+        S2 attach *
+        execsql $sql db2
+        lappend c2 [S2 changeset]
+        S2 delete
+      }
+    }
+
+    set ::lConflict $conflict_handler
+    set rebase [list]
+    if {$i==1} {
+      lappend rebase [sqlite3changeset_apply_v2 db $c2 xConflict]
+    } else {
+      foreach c $c2 {
+#puts "apply_v2: [changeset_to_list $c]"
+        lappend rebase [sqlite3changeset_apply_v2 db $c xConflict]
+      }
+      #puts "llength: [llength $rebase]"
+    }
+    #if {$tn=="2.1.4"} { puts [changeset_to_list $rebase] ; breakpoint }
+    #puts [changeset_to_list [lindex $rebase 0]] ; breakpoint
+    #puts [llength $rebase]
+  
+    sqlite3rebaser_create R
+    foreach r $rebase {
+#puts [changeset_to_list $r]
+      R configure $r
+    }
+    set c1r [R rebase $c1]
+    R delete
+    #if {$tn=="2.1.4"} { puts [changeset_to_list $c1r] }
+  
+    sqlite3changeset_apply_v2 db2 $c1r xConflictAbort
+  
+    if {[string range $tn end end]!="*"} {
+      uplevel [list do_test $tn.$i.1 [list compare_db db db2] {}]
+    }
+    db2 close
+  
+    if {$testsql!=""} {
+      uplevel [list do_execsql_test $tn.$i.2 $testsql $testres]
+    }
+  
+    db eval ROLLBACK
+  }
+}
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+  INSERT INTO t1 VALUES(1, 'value A');
+}
+
+do_apply_v2_test 1.1.1 {
+  UPDATE t1 SET b = 'value B' WHERE a=1;
+} {
+  UPDATE t1 SET b = 'value C' WHERE a=1;
+} {
+  OMIT
+} {
+  {INSERT t1 0 X. {} {i 1 t {value B}}}
+}
+
+do_apply_v2_test 1.1.2 {
+  UPDATE t1 SET b = 'value B' WHERE a=1;
+} {
+  UPDATE t1 SET b = 'value C' WHERE a=1;
+} {
+  REPLACE
+} {
+  {INSERT t1 1 X. {} {i 1 t {value B}}}
+}
+
+do_apply_v2_test 1.2.1 {
+  INSERT INTO t1 VALUES(2, 'first');
+} {
+  INSERT INTO t1 VALUES(2, 'second');
+} {
+  OMIT
+} {
+  {INSERT t1 0 X. {} {i 2 t first}}
+}
+do_apply_v2_test 1.2.2 {
+  INSERT INTO t1 VALUES(2, 'first');
+} {
+  INSERT INTO t1 VALUES(2, 'second');
+} {
+  REPLACE
+} {
+  {INSERT t1 1 X. {} {i 2 t first}}
+}
+
+do_apply_v2_test 1.3.1 {
+  DELETE FROM t1 WHERE a=1;
+} {
+  UPDATE t1 SET b='value D' WHERE a=1;
+} {
+  OMIT
+} {
+  {DELETE t1 0 X. {i 1 t {value A}} {}}
+}
+do_apply_v2_test 1.3.2 {
+  DELETE FROM t1 WHERE a=1;
+} {
+  UPDATE t1 SET b='value D' WHERE a=1;
+} {
+  REPLACE
+} {
+  {DELETE t1 1 X. {i 1 t {value A}} {}}
+}
+
+#-------------------------------------------------------------------------
+# Test cases 2.* - simple tests of rebasing actual changesets.
+#
+#    2.1.1 - 1u2u1r
+#    2.1.2 - 1u2u2r
+#    2.1.3 - 1d2d
+#    2.1.4 - 1d2u1r
+#    2.1.5 - 1d2u2r !!
+#    2.1.6 - 1u2d1r
+#    2.1.7 - 1u2d2r
+#
+#    2.1.8 - 1i2i2r
+#    2.1.9 - 1i2i1r
+#
+
+proc xConflictAbort {args} {
+  return "ABORT"
+}
+
+reset_db
+do_execsql_test 2.1.0 {
+  CREATE TABLE t1 (a INTEGER PRIMARY KEY, b TEXT);
+  INSERT INTO t1 VALUES(1, 'one');
+  INSERT INTO t1 VALUES(2, 'two');
+  INSERT INTO t1 VALUES(3, 'three');
+}
+do_rebase_test 2.1.1 {
+  UPDATE t1 SET b = 'two.1' WHERE a=2
+} {
+  UPDATE t1 SET b = 'two.2' WHERE a=2;
+} {
+  OMIT
+} { SELECT * FROM t1 } {1 one 2 two.1 3 three}
+
+do_rebase_test 2.1.2 {
+  UPDATE t1 SET b = 'two.1' WHERE a=2
+} {
+  UPDATE t1 SET b = 'two.2' WHERE a=2;
+} {
+  REPLACE
+} { SELECT * FROM t1 } {1 one 2 two.2 3 three}
+
+do_rebase_test 2.1.3 {
+  DELETE FROM t1 WHERE a=3
+} {
+  DELETE FROM t1 WHERE a=3;
+} {
+  OMIT
+} { SELECT * FROM t1 } {1 one 2 two}
+
+do_rebase_test 2.1.4 {
+  DELETE FROM t1 WHERE a=1
+} {
+  UPDATE t1 SET b='one.2' WHERE a=1
+} {
+  OMIT
+} { SELECT * FROM t1 } {2 two 3 three}
+
+#do_rebase_test 2.1.5 {
+#  DELETE FROM t1 WHERE a=1;
+#} {
+#  UPDATE t1 SET b='one.2' WHERE a=1
+#} {
+#  REPLACE
+#} { SELECT * FROM t1 } {2 two 3 three}
+
+do_rebase_test 2.1.6 {
+  UPDATE t1 SET b='three.1' WHERE a=3
+} {
+  DELETE FROM t1 WHERE a=3;
+} {
+  OMIT
+} { SELECT * FROM t1 } {1 one 2 two 3 three.1}
+
+do_rebase_test 2.1.7 {
+  UPDATE t1 SET b='three.1' WHERE a=3
+} {
+  DELETE FROM t1 WHERE a=3;
+} {
+  REPLACE
+} { SELECT * FROM t1 } {1 one 2 two}
+
+do_rebase_test 2.1.8 {
+  INSERT INTO t1 VALUES(4, 'four.1')
+} {
+  INSERT INTO t1 VALUES(4, 'four.2');
+} {
+  REPLACE
+} { SELECT * FROM t1 } {1 one 2 two 3 three 4 four.2}
+
+do_rebase_test 2.1.9 {
+  INSERT INTO t1 VALUES(4, 'four.1')
+} {
+  INSERT INTO t1 VALUES(4, 'four.2');
+} {
+  OMIT
+} { SELECT * FROM t1 } {1 one 2 two 3 three 4 four.1}
+
+do_execsql_test 2.2.0 {
+  CREATE TABLE t2(x, y, z PRIMARY KEY);
+  INSERT INTO t2 VALUES('i', 'a', 'A');
+  INSERT INTO t2 VALUES('ii', 'b', 'B');
+  INSERT INTO t2 VALUES('iii', 'c', 'C');
+
+  CREATE TABLE t3(a INTEGER PRIMARY KEY, b, c);
+  INSERT INTO t3 VALUES(-1, 'z', 'Z');
+  INSERT INTO t3 VALUES(-2, 'y', 'Y');
+}
+
+do_rebase_test 2.2.1 {
+  UPDATE t2 SET x=1 WHERE z='A'
+} {
+  UPDATE t2 SET y='one' WHERE z='A';
+} {
+} { SELECT * FROM t2 WHERE z='A' } { 1 one A }
+
+do_rebase_test 2.2.2 {
+  UPDATE t2 SET x=1, y='one' WHERE z='B'
+} {
+  UPDATE t2 SET y='two' WHERE z='B';
+} {
+  REPLACE
+} { SELECT * FROM t2 WHERE z='B' } { 1 two B }
+
+do_rebase_test 2.2.3 {
+  UPDATE t2 SET x=1, y='one' WHERE z='B'
+} {
+  UPDATE t2 SET y='two' WHERE z='B';
+} {
+  OMIT
+} { SELECT * FROM t2 WHERE z='B' } { 1 one B }
+
+
+reset_db
+do_execsql_test 2.3.0 {
+  CREATE TABLE t1 (b TEXT);
+  INSERT INTO t1(rowid, b) VALUES(1, 'one');
+  INSERT INTO t1(rowid, b) VALUES(2, 'two');
+  INSERT INTO t1(rowid, b) VALUES(3, 'three');
+}
+do_rebase_test 2.3.1 {
+  UPDATE t1 SET b = 'two.1' WHERE rowid=2
+} {
+  UPDATE t1 SET b = 'two.2' WHERE rowid=2;
+} {
+  OMIT
+} { SELECT rowid, * FROM t1 } {1 one 2 two.1 3 three}
+
+do_rebase_test 2.3.2 {
+  UPDATE t1 SET b = 'two.1' WHERE rowid=2
+} {
+  UPDATE t1 SET b = 'two.2' WHERE rowid=2;
+} {
+  REPLACE
+} { SELECT rowid, * FROM t1 } {1 one 2 two.2 3 three}
+
+do_rebase_test 2.3.3 {
+  DELETE FROM t1 WHERE rowid=3
+} {
+  DELETE FROM t1 WHERE rowid=3;
+} {
+  OMIT
+} { SELECT rowid, * FROM t1 } {1 one 2 two}
+
+do_rebase_test 2.3.4 {
+  DELETE FROM t1 WHERE rowid=1
+} {
+  UPDATE t1 SET b='one.2' WHERE rowid=1
+} {
+  OMIT
+} { SELECT rowid, * FROM t1 } {2 two 3 three}
+
+do_rebase_test 2.3.6 {
+  UPDATE t1 SET b='three.1' WHERE rowid=3
+} {
+  DELETE FROM t1 WHERE rowid=3;
+} {
+  OMIT
+} { SELECT rowid, * FROM t1 } {1 one 2 two 3 three.1}
+
+do_rebase_test 2.3.7 {
+  UPDATE t1 SET b='three.1' WHERE rowid=3
+} {
+  DELETE FROM t1 WHERE rowid=3;
+} {
+  REPLACE
+} { SELECT rowid, * FROM t1 } {1 one 2 two}
+
+do_rebase_test 2.3.8 {
+  INSERT INTO t1(rowid, b) VALUES(4, 'four.1')
+} {
+  INSERT INTO t1(rowid, b) VALUES(4, 'four.2');
+} {
+  REPLACE
+} { SELECT rowid, * FROM t1 } {1 one 2 two 3 three 4 four.2}
+
+do_rebase_test 2.3.9 {
+  INSERT INTO t1(rowid, b) VALUES(4, 'four.1')
+} {
+  INSERT INTO t1(rowid, b) VALUES(4, 'four.2');
+} {
+  OMIT
+} { SELECT rowid, * FROM t1 } {1 one 2 two 3 three 4 four.1}
+
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 3.0 {
+  CREATE TABLE t3(a, b, c, PRIMARY KEY(b, c));
+  CREATE TABLE abcdefghijkl(x PRIMARY KEY, y, z);
+
+  INSERT INTO t3 VALUES(1, 2, 3);
+  INSERT INTO t3 VALUES(4, 2, 5);
+  INSERT INTO t3 VALUES(7, 2, 9);
+
+  INSERT INTO abcdefghijkl VALUES('a', 'b', 'c');
+  INSERT INTO abcdefghijkl VALUES('d', 'e', 'f');
+  INSERT INTO abcdefghijkl VALUES('g', 'h', 'i');
+}
+
+breakpoint
+#  do_rebase_test 3.6.tn {
+#    UPDATE abcdefghijkl SET z='X', y='X' WHERE x='d';
+#  } {
+#    UPDATE abcdefghijkl SET y=1 WHERE x='d';
+#    UPDATE abcdefghijkl SET z=1 WHERE x='d';
+#  } [list REPLACE REPLACE REPLACE]
+
+foreach {tn p} {
+    1 OMIT 2 REPLACE
+} {
+  do_rebase_test 3.1.$tn {
+    INSERT INTO t3 VALUES(1, 1, 1);
+    UPDATE abcdefghijkl SET y=2;
+  } {
+    INSERT INTO t3 VALUES(4, 1, 1);
+    DELETE FROM abcdefghijkl;
+  } [list $p $p $p $p $p $p $p $p]
+
+  do_rebase_test 3.2.$tn {
+    INSERT INTO abcdefghijkl SELECT * FROM t3;
+    UPDATE t3 SET b=b+1;
+  } {
+    INSERT INTO t3 VALUES(3, 3, 3);
+    INSERT INTO abcdefghijkl SELECT * FROM t3;
+  } [list $p $p $p $p $p $p $p $p]
+
+  do_rebase_test 3.3.$tn {
+    INSERT INTO abcdefghijkl VALUES(22, 23, 24);
+  } {
+    INSERT INTO abcdefghijkl VALUES(22, 25, 26);
+    UPDATE abcdefghijkl SET y=400 WHERE x=22;
+  } [list $p $p $p $p $p $p $p $p]
+
+  do_rebase_test 3.4.$tn {
+    INSERT INTO abcdefghijkl VALUES(22, 23, 24);
+  } {
+    INSERT INTO abcdefghijkl VALUES(22, 25, 26);
+    UPDATE abcdefghijkl SET y=400 WHERE x=22;
+  } [list REPLACE $p]
+
+  do_rebase_test 3.5.$tn* {
+    UPDATE abcdefghijkl SET y='X' WHERE x='d';
+  } {
+    DELETE FROM abcdefghijkl WHERE x='d';
+    INSERT INTO abcdefghijkl VALUES('d', NULL, NULL);
+  } [list $p $p $p]
+  do_rebase_test 3.5.$tn {
+    UPDATE abcdefghijkl SET y='X' WHERE x='d';
+  } {
+    DELETE FROM abcdefghijkl WHERE x='d';
+    INSERT INTO abcdefghijkl VALUES('d', NULL, NULL);
+  } [list REPLACE $p $p]
+
+  do_rebase_test 3.6.$tn {
+    UPDATE abcdefghijkl SET z='X', y='X' WHERE x='d';
+  } {
+    UPDATE abcdefghijkl SET y=1 WHERE x='d';
+    UPDATE abcdefghijkl SET z=1 WHERE x='d';
+  } [list REPLACE $p $p]
+}
+
+#-------------------------------------------------------------------------
+# Check that apply_v2() does not create a rebase buffer for a patchset.
+# And that it is not possible to rebase a patchset.
+#
+do_execsql_test 4.0 {
+  CREATE TABLE t5(o PRIMARY KEY, p, q);
+  INSERT INTO t5 VALUES(1, 2, 3);
+  INSERT INTO t5 VALUES(4, 5, 6);
+}
+foreach {tn cmd rebasable} {
+  1 patchset 0
+  2 changeset 1
+} {
+  proc xConflict {args} { return "OMIT" }
+  do_test 4.1.$tn {
+    execsql {
+      BEGIN;
+      DELETE FROM t5 WHERE o=4;
+    }
+
+    sqlite3session S db main
+    S attach *
+    execsql {
+      INSERT INTO t5 VALUES(4, 'five', 'six');
+    }
+    set P [S $cmd]
+    S delete
+
+    execsql ROLLBACK;
+
+    set ::rebase [sqlite3changeset_apply_v2 db $P xConflict]
+    expr [llength $::rebase]>0
+  } $rebasable
+}
+
+foreach {tn cmd rebasable} {
+  1 patchset 0
+  2 changeset 1
+} {
+  do_test 4.2.$tn {
+    sqlite3session S db main
+    S attach *
+    execsql {
+      INSERT INTO t5 VALUES(5+$tn, 'five', 'six');
+    }
+    set P [S $cmd]
+    S delete
+
+    sqlite3rebaser_create R
+    R configure $::rebase
+    expr [catch {R rebase $P}]==0
+  } $rebasable
+
+  catch { R delete }
+}
+finish_test
diff --git a/ext/session/sessionrowid.test b/ext/session/sessionrowid.test
new file mode 100644
index 0000000000000000000000000000000000000000..a39105ff9efb34ca62cf1c1cf7f6adaba36d3f6f
--- /dev/null
+++ b/ext/session/sessionrowid.test
@@ -0,0 +1,282 @@
+# 2011 Mar 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# The focus of this file is testing the session module.
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] session_common.tcl]
+source $testdir/tester.tcl
+ifcapable !session {finish_test; return}
+
+set testprefix sessionrowid
+
+do_execsql_test 0.0 { 
+  CREATE TABLE t1(a, b);
+}
+
+foreach {tn rowid bEmpty} {
+  1 0    1
+  2 1    0
+  3 -1   1
+} {
+  do_test 0.$tn {
+    sqlite3session S db main
+    if {$rowid>=0} { S object_config rowid $rowid }
+    S attach t1
+    execsql { INSERT INTO t1 VALUES(1, 2); }
+    expr [string length [S changeset]]==0
+  } $bEmpty
+  S delete
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 1.0 { 
+  CREATE TABLE t1(a, b);
+}
+
+do_iterator_test 1.1 t1 {
+  INSERT INTO t1 VALUES('i', 'one');
+} {
+  {INSERT t1 0 X.. {} {i 1 t i t one}}
+}
+
+do_execsql_test 1.2 {
+  SELECT rowid, * FROM t1
+} {1 i one}
+
+do_iterator_test 1.3 t1 {
+  UPDATE t1 SET b='two'
+} {
+  {UPDATE t1 0 X.. {i 1 {} {} t one} {{} {} {} {} t two}}
+}
+
+do_iterator_test 1.4 t1 {
+  DELETE FROM t1;
+} {
+  {DELETE t1 0 X.. {i 1 t i t two} {}}
+}
+
+do_iterator_test 1.5 t1 {
+  INSERT INTO t1(rowid, a, b) VALUES(14, 'hello', 'world');
+  INSERT INTO t1(rowid, a, b) VALUES(NULL, 'yes', 'no');
+  INSERT INTO t1(rowid, a, b) VALUES(-123, 'ii', 'iii');
+} {
+  {INSERT t1 0 X.. {} {i -123 t ii t iii}}
+  {INSERT t1 0 X.. {} {i 15 t yes t no}}
+  {INSERT t1 0 X.. {} {i 14 t hello t world}}
+}
+
+do_iterator_test 1.6 t1 {
+  UPDATE t1 SET a='deluxe' WHERE rowid=14;
+  DELETE FROM t1 WHERE rowid=-123;
+  INSERT INTO t1 VALUES('x', 'xi');
+} {
+  {DELETE t1 0 X.. {i -123 t ii t iii} {}}
+  {UPDATE t1 0 X.. {i 14 t hello {} {}} {{} {} t deluxe {} {}}}
+  {INSERT t1 0 X.. {} {i 16 t x t xi}}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+forcedelete test.db2
+sqlite3 db2 test.db2
+
+do_execsql_test 2.0 {
+  CREATE TABLE t1(a, b);
+}
+do_execsql_test -db db2 2.0.1 {
+  CREATE TABLE t1(a, b);
+}
+
+proc xConflict {args} { 
+  puts "CONFLICT!"
+  return "OMIT" 
+}
+
+do_test 2.1 {
+  set C [changeset_from_sql {
+    INSERT INTO t1 VALUES('abc', 'def');
+  }]
+  sqlite3changeset_apply db2 $C xConflict
+  execsql { SELECT * FROM t1 } db2
+} {abc def}
+do_test 2.2 {
+  set C [changeset_from_sql {
+    UPDATE t1 SET b='hello'
+  }]
+  sqlite3changeset_apply db2 $C xConflict
+  execsql { SELECT * FROM t1 } db2
+} {abc hello}
+do_test 2.3 {
+  set C [changeset_from_sql {
+    DELETE FROM t1 WHERE b='hello'
+  }]
+  sqlite3changeset_apply db2 $C xConflict
+  execsql { SELECT * FROM t1 } db2
+} {}
+
+do_test 2.4 {
+  do_then_apply_sql {
+    INSERT INTO t1 VALUES('i', 'one');
+    INSERT INTO t1 VALUES('ii', 'two');
+    INSERT INTO t1 VALUES('iii', 'three');
+    INSERT INTO t1 VALUES('iv', 'four');
+  }
+  compare_db db db2
+} {}
+
+do_test 2.5 {
+  do_then_apply_sql {
+    DELETE FROM t1 WHERE a='ii';
+    UPDATE t1 SET b='THREE' WHERE a='iii';
+    UPDATE t1 SET a='III' WHERE a='iii';
+    INSERT INTO t1 VALUES('v', 'five');
+  }
+  compare_db db db2
+} {}
+
+do_execsql_test 2.6 {SELECT * FROM t1} {i one III THREE iv four v five}
+do_execsql_test -db db2 2.7 {SELECT * FROM t1} {i one III THREE iv four v five}
+
+#-------------------------------------------------------------------------
+db2 close
+reset_db
+forcedelete test.db2
+sqlite3 db2 test.db2
+
+set init_sql {
+  CREATE TABlE t4(a, b);
+  CREATE INDEX t4a ON t4(a);
+  CREATE UNIQUE INDEX t4b ON t4(b);
+}
+
+do_execsql_test 3.0 $init_sql
+do_execsql_test -db db2 3.0a $init_sql
+
+do_execsql_test -db db2 3.1 {
+  INSERT INTO t4(rowid, a, b) VALUES(43, 'hello', 'world');
+}
+do_conflict_test 3.2 -sql {
+  INSERT INTO t4(rowid, a, b) VALUES(43, 'abc', 'def');
+} -tables t4 -conflicts {
+  {INSERT t4 CONFLICT {i 43 t abc t def} {i 43 t hello t world}}
+}
+do_execsql_test -db db2 3.3 {
+  SELECT * FROM t4
+} {hello world}
+
+do_execsql_test 3.4 { DELETE FROM t4 }
+do_conflict_test 3.5 -sql {
+  INSERT INTO t4(rowid, a, b) VALUES(43, 'abc', 'def');
+} -tables t4 -conflicts {
+  {INSERT t4 CONFLICT {i 43 t abc t def} {i 43 t hello t world}}
+} -policy REPLACE
+do_execsql_test -db db2 3.6 {
+  SELECT * FROM t4
+} {abc def}
+
+do_execsql_test 3.7 { DELETE FROM t4 }
+do_conflict_test 3.8 -sql {
+  INSERT INTO t4(rowid, a, b) VALUES(45, 'xyz', 'def');
+} -tables t4 -conflicts {
+  {INSERT t4 CONSTRAINT {i 45 t xyz t def}}
+} 
+do_execsql_test -db db2 3.9 {
+  SELECT * FROM t4
+} {abc def}
+
+
+do_execsql_test -db db  3.10a { DELETE FROM t4 }
+do_execsql_test -db db2 3.10b { DELETE FROM t4 }
+
+do_execsql_test -db db 3.11a {
+  INSERT INTO t4(rowid, a, b) VALUES(111, 'one', 'one');
+  INSERT INTO t4(rowid, a, b) VALUES(222, 'two', 'two');
+}
+do_execsql_test -db db2 3.11b {
+  INSERT INTO t4(rowid, a, b) VALUES(111, 'one', 'blip');
+}
+
+do_conflict_test 3.12 -sql {
+  DELETE FROM t4 WHERE a='one';
+} -tables t4 -conflicts {
+  {DELETE t4 DATA {i 111 t one t one} {i 111 t one t blip}}
+} 
+do_execsql_test -db db2 3.13 {
+  SELECT * FROM t4
+} {one blip}
+
+do_conflict_test 3.14 -sql {
+  DELETE FROM t4 WHERE a='two';
+} -tables t4 -conflicts {
+  {DELETE t4 NOTFOUND {i 222 t two t two}}
+} 
+do_execsql_test -db db2 3.15 {
+  SELECT * FROM t4
+} {one blip}
+
+do_execsql_test -db db  3.16a { DELETE FROM t4 }
+do_execsql_test -db db2 3.16b { DELETE FROM t4 }
+
+do_execsql_test -db db 3.17a {
+  INSERT INTO t4(rowid, a, b) VALUES(111, 'one', 'one');
+  INSERT INTO t4(rowid, a, b) VALUES(222, 'two', 'two');
+}
+do_execsql_test -db db2 3.17b {
+  INSERT INTO t4(rowid, a, b) VALUES(111, 'one', 'blip');
+}
+
+do_conflict_test 3.18 -sql {
+  UPDATE t4 SET b='xyz' WHERE a='one'
+} -tables t4 -conflicts {
+  {UPDATE t4 DATA {i 111 {} {} t one} {{} {} {} {} t xyz} {i 111 t one t blip}}
+} 
+do_execsql_test -db db2 3.19 {
+  SELECT * FROM t4
+} {one blip}
+
+do_conflict_test 3.20 -sql {
+  UPDATE t4 SET b='123' WHERE a='two'
+} -tables t4 -conflicts {
+  {UPDATE t4 NOTFOUND {i 222 {} {} t two} {{} {} {} {} t 123}}
+} 
+do_execsql_test -db db2 3.21 {
+  SELECT * FROM t4
+} {one blip}
+db2 close
+
+#--------------------------------------------------------------------------
+breakpoint
+do_diff_test 4.0 {
+  CREATE TABLE t1(x, y);
+  CREATE TABLE aux.t1(x, y);
+  INSERT INTO t1 VALUES(1, 2);
+}
+
+do_diff_test 4.1 {
+  CREATE TABLE t1(x, y);
+  CREATE TABLE aux.t1(x, y);
+  INSERT INTO aux.t1 VALUES(1, 2);
+}
+
+do_diff_test 4.2 {
+  CREATE TABLE t1(x, y);
+  CREATE TABLE aux.t1(x, y);
+  INSERT INTO t1(rowid, x, y) VALUES(413, 'hello', 'there');
+  INSERT INTO aux.t1(rowid, x, y) VALUES(413, 'hello', 'world');
+}
+
+finish_test
+
diff --git a/ext/session/sessionsize.test b/ext/session/sessionsize.test
new file mode 100644
index 0000000000000000000000000000000000000000..01638c6677e3f13bf1a79753cf78dd869d599cfe
--- /dev/null
+++ b/ext/session/sessionsize.test
@@ -0,0 +1,131 @@
+# 2021 April 22
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] session_common.tcl]
+source $testdir/tester.tcl
+ifcapable !session {finish_test; return}
+
+set testprefix sessionsize
+
+proc do_changeset_size_test {tn sql} {
+  sqlite3session S db main
+  S attach *
+  db eval $sql
+
+  set sz [S changeset_size]
+  set C [S changeset]
+  set szC [string length $C]
+  S delete
+
+  do_test $tn "expr $sz" $szC
+}
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+  INSERT INTO t1 VALUES(1, 'abc', 'def');
+  INSERT INTO t1 VALUES(2, 'ghi', 'jkl');
+}
+
+do_changeset_size_test 1.1 {
+  INSERT INTO t1 VALUES(3, 'hello', 'world');
+}
+
+do_changeset_size_test 1.2 {
+  DELETE FROM t1 WHERE a=2;
+}
+
+do_changeset_size_test 1.3 {
+  DELETE FROM t1 WHERE a=3;
+  INSERT INTO t1 VALUES(3, 1, 2);
+}
+
+do_changeset_size_test 1.4 {
+  UPDATE t1 SET c='hello world' WHERE a=3;
+}
+
+#-------------------------------------------------------------------------
+
+do_execsql_test 2.0 {
+  CREATE TABlE t2(a, b, c, d, PRIMARY KEY(a, b)) WITHOUT ROWID;
+  CREATE TABlE t3(a, b, c, d PRIMARY KEY);
+}
+
+do_changeset_size_test 2.1 {
+  WITH s(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<50
+  )
+  INSERT INTO t2 SELECT i, i+1, i+2, i+3 FROM s;
+
+  UPDATE t2 SET c=randomblob(a) WHERE a>10
+}
+
+do_changeset_size_test 2.2 {
+  DELETE FROM t2 WHERE a=1;
+  INSERT INTO t2 VALUES(1, 4, 3, 4);
+}
+
+do_changeset_size_test 2.2 {
+  UPDATE t2 SET b=4 WHERE a=2
+}
+
+do_changeset_size_test 2.3 {
+  INSERT INTO t2 VALUES('a', 'b', 'c', 'd');
+  UPDATE t2 SET c='qwertyuiop' WHERE a='a';
+}
+
+do_changeset_size_test 2.4 {
+  DELETE FROM t2 WHERE a='a';
+  INSERT INTO t2 VALUES('a', 'b', 'c', 'd');
+}
+
+do_changeset_size_test 2.5 {
+  UPDATE t2 SET a='aa', b='bb' WHERE (a, b) = ('a', 'b');
+}
+
+do_changeset_size_test 2.6 {
+  UPDATE t2 SET a='a', b='b' WHERE (a, b) = ('aa', 'bb');
+}
+
+do_changeset_size_test 2.7 {
+  INSERT INTO t3 DEFAULT VALUES;
+  INSERT INTO t3 VALUES(1,2,3,4);
+}
+
+#-------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 3.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+}
+
+do_test 3.1 {
+  sqlite3session S db main
+  S object_config size -1
+} 1
+
+do_test 3.2.1 { S object_config size 0  } 0
+do_test 3.2.2 { S object_config size -1 } 0
+do_test 3.2.3 { S object_config size 1  } 1
+do_test 3.2.4 { S object_config size -1 } 1
+
+do_test 3.3 { S attach t1 } {}
+do_test 3.4 { S object_config size 1  } {SQLITE_MISUSE}
+do_test 3.4 { S object_config size -1 } {1}
+
+S delete
+
+finish_test
+
diff --git a/ext/session/sessionstat1.test b/ext/session/sessionstat1.test
new file mode 100644
index 0000000000000000000000000000000000000000..16dc4e2727f95aa734a391fcfd273c44496fa847
--- /dev/null
+++ b/ext/session/sessionstat1.test
@@ -0,0 +1,310 @@
+# 2018 January 12
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] session_common.tcl]
+source $testdir/tester.tcl
+ifcapable !session {finish_test; return}
+
+set testprefix sessionstat1
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a PRIMARY KEY, b, c);
+  CREATE INDEX t1b ON t1(b);
+  CREATE INDEX t1c ON t1(c);
+
+  WITH s(i) AS (
+    SELECT 0 UNION ALL SELECT i+1 FROM s WHERE (i+1)<32
+  )
+  INSERT INTO t1 SELECT i, i%8, i%2 FROM s;
+}
+
+do_iterator_test 1.1 {} {
+  ANALYZE
+} {
+  {INSERT sqlite_stat1 0 XX. {} {t t1 t sqlite_autoindex_t1_1 t {32 1}}}
+  {INSERT sqlite_stat1 0 XX. {} {t t1 t t1b t {32 4}}} 
+  {INSERT sqlite_stat1 0 XX. {} {t t1 t t1c t {32 16}}}
+}
+
+do_execsql_test 1.2 {
+  WITH s(i) AS (
+    SELECT 32 UNION ALL SELECT i+1 FROM s WHERE (i+1)<64
+  )
+  INSERT INTO t1 SELECT i, i%8, i%2 FROM s;
+}
+
+do_iterator_test 1.3 {} {
+  ANALYZE
+} {
+  {UPDATE sqlite_stat1 0 XX. {t t1 t sqlite_autoindex_t1_1 t {32 1}} {{} {} {} {} t {64 1}}} 
+  {UPDATE sqlite_stat1 0 XX. {t t1 t t1b t {32 4}} {{} {} {} {} t {64 8}}} 
+  {UPDATE sqlite_stat1 0 XX. {t t1 t t1c t {32 16}} {{} {} {} {} t {64 32}}}
+}
+
+do_iterator_test 1.5 {} {
+  DROP INDEX t1b;
+} {
+  {DELETE sqlite_stat1 0 XX. {t t1 t t1b t {64 8}} {}}
+}
+
+do_iterator_test 1.6 {} {
+  DROP TABLE t1;
+} {
+  {DELETE sqlite_stat1 0 XX. {t t1 t sqlite_autoindex_t1_1 t {64 1}} {}}
+  {DELETE sqlite_stat1 0 XX. {t t1 t t1c t {64 32}} {}}
+}
+
+#-------------------------------------------------------------------------
+#
+catch { db2 close }
+forcedelete test.db2
+sqlite3 db2 test.db2
+
+do_test 2.0 {
+  do_common_sql {
+    CREATE TABLE t1(a PRIMARY KEY, b, c);
+    CREATE INDEX t1b ON t1(b);
+    CREATE INDEX t1c ON t1(c);
+    ANALYZE;
+  }
+} {}
+
+do_test 2.1 {
+  do_then_apply_sql -ignorenoop {
+    WITH s(i) AS (
+        SELECT 0 UNION ALL SELECT i+1 FROM s WHERE (i+1)<32
+    )
+    INSERT INTO t1 SELECT i, i%8, i%2 FROM s;
+    ANALYZE;
+  }
+} {}
+
+do_execsql_test -db db2 2.2 {
+  SELECT * FROM sqlite_stat1 ORDER BY tbl, idx
+} {
+  t1 sqlite_autoindex_t1_1 {32 1} 
+  t1 t1b {32 4} 
+  t1 t1c {32 16}
+}
+
+do_test 2.3 {
+  do_then_apply_sql -ignorenoop { DROP INDEX t1c }
+} {}
+
+do_execsql_test -db db2 2.4 {
+  SELECT * FROM sqlite_stat1 ORDER BY tbl, idx;
+} {
+  t1 sqlite_autoindex_t1_1 {32 1} 
+  t1 t1b {32 4} 
+}
+
+do_test 2.3 {
+  do_then_apply_sql -ignorenoop { DROP TABLE t1 }
+} {}
+
+do_execsql_test -db db2 2.4 {
+  SELECT * FROM sqlite_stat1
+} {
+}
+
+do_execsql_test -db db2 2.5 { SELECT count(*) FROM t1 } 32
+
+#-------------------------------------------------------------------------
+db2 close
+forcedelete test.db2
+reset_db
+sqlite3 db2 test.db2
+
+do_test 3.0 {
+  do_common_sql {
+    CREATE TABLE t1(a, b, c);
+    ANALYZE;
+    DELETE FROM sqlite_stat1;
+  }
+  execsql {
+    INSERT INTO t1 VALUES(1, 1, 1);
+    INSERT INTO t1 VALUES(2, 2, 2);
+    INSERT INTO t1 VALUES(3, 3, 3);
+    INSERT INTO t1 VALUES(4, 4, 4);
+  }
+} {} 
+
+do_iterator_test 3.1 {} {
+  ANALYZE
+} {
+  {INSERT sqlite_stat1 0 XX. {} {t t1 b {} t 4}}
+}
+db null null
+db2 null null
+do_execsql_test 3.2 {
+  SELECT * FROM sqlite_stat1;
+} {t1 null 4}
+do_test 3.3 {
+  execsql { DELETE FROM sqlite_stat1 }
+  do_then_apply_sql -ignorenoop { ANALYZE }
+  execsql { SELECT * FROM sqlite_stat1 } db2
+} {t1 null 4}
+do_test 3.4 {
+  execsql { INSERT INTO t1 VALUES(5,5,5) }
+  do_then_apply_sql -ignorenoop { ANALYZE }
+  execsql { SELECT * FROM sqlite_stat1 } db2
+} {t1 null 5}
+do_test 3.5 {
+  do_then_apply_sql -ignorenoop { DROP TABLE t1 }
+  execsql { SELECT * FROM sqlite_stat1 } db2
+} {}
+
+do_test 3.6.1 {
+  execsql { 
+    CREATE TABLE t1(a, b, c);
+    CREATE TABLE t2(x, y, z);
+    INSERT INTO t1 VALUES(1,1,1), (2,2,2), (3,3,3), (4,4,4), (5,5,5);
+    INSERT INTO t2 SELECT * FROM t1;
+    DELETE FROM sqlite_stat1;
+  }
+  sqlite3session S db main
+  S attach sqlite_stat1
+  execsql { ANALYZE }
+} {}
+do_changeset_test 3.6.2 S {
+  {INSERT sqlite_stat1 0 XX. {} {t t2 b {} t 5}}
+  {INSERT sqlite_stat1 0 XX. {} {t t1 b {} t 5}}
+}
+do_changeset_invert_test 3.6.3 S {
+  {DELETE sqlite_stat1 0 XX. {t t2 b {} t 5} {}}
+  {DELETE sqlite_stat1 0 XX. {t t1 b {} t 5} {}}
+}
+do_test 3.6.4 { S delete } {}
+
+proc sql_changeset_concat {args} {
+  foreach sql $args {
+    sqlite3session S db main
+    S attach sqlite_stat1
+    execsql $sql
+    set change [S changeset]
+    S delete
+
+    if {[info vars ret]!=""} {
+      set ret [sqlite3changeset_concat $ret $change]
+    } else {
+      set ret $change
+    }
+  }
+
+  changeset_to_list $ret
+}
+
+proc do_scc_test {tn args} {
+  uplevel [list \
+    do_test $tn [concat sql_changeset_concat [lrange $args 0 end-1]] \
+    [list {*}[ lindex $args end ]]
+  ]
+}
+
+do_execsql_test 3.7.0 {
+  DELETE FROM sqlite_stat1;
+}
+do_scc_test 3.7.1 {
+  ANALYZE;
+} {
+  INSERT INTO t2 VALUES(6,6,6);
+  ANALYZE;
+} {
+  {INSERT sqlite_stat1 0 XX. {} {t t1 b {} t 5}}
+  {INSERT sqlite_stat1 0 XX. {} {t t2 b {} t 6}}
+}
+
+#-------------------------------------------------------------------------
+catch { db2 close }
+reset_db
+forcedelete test.db2
+sqlite3 db2 test.db2
+
+do_test 4.1.0 {
+  do_common_sql {
+    CREATE TABLE t1(a, b);
+    CREATE INDEX i1 ON t1(a);
+    CREATE INDEX i2 ON t1(b);
+    INSERT INTO t1 VALUES(1,1), (2,2);
+    ANALYZE;
+  }
+  execsql { DELETE FROM sqlite_stat1 }
+} {}
+
+do_test 4.1.1 {
+  execsql { INSERT INTO t1 VALUES(3,3); }
+  set C [changeset_from_sql {ANALYZE}]
+  set ::c [list]
+  proc xConflict {args} {
+    lappend ::c $args
+    return "OMIT"
+  }
+  sqlite3changeset_apply db2 $C xConflict
+  set ::c
+} [list {*}{
+  {INSERT sqlite_stat1 CONFLICT {t t1 t i1 t {3 1}} {t t1 t i1 t {2 1}}}
+  {INSERT sqlite_stat1 CONFLICT {t t1 t i2 t {3 1}} {t t1 t i2 t {2 1}}}
+}]
+
+do_execsql_test -db db2 4.1.2 {
+  SELECT * FROM sqlite_stat1 ORDER BY 1,2;
+} {t1 i1 {2 1} t1 i2 {2 1}}
+
+do_test 4.1.3 {
+  proc xConflict {args} {
+    return "REPLACE"
+  }
+  sqlite3changeset_apply db2 $C xConflict
+  execsql { SELECT * FROM sqlite_stat1 ORDER BY 1,2 } db2
+} {t1 i1 {3 1} t1 i2 {3 1}}
+
+do_test 4.2.0 {
+  do_common_sql { 
+    DROP TABLE t1;
+    CREATE TABLE t3(x,y);
+    INSERT INTO t3 VALUES('a','a');
+    INSERT INTO t3 VALUES('b','b');
+    ANALYZE;
+  }
+  execsql { DELETE FROM sqlite_stat1 }
+} {}
+do_test 4.2.1 {
+  execsql { INSERT INTO t3 VALUES('c','c'); }
+  set C [changeset_from_sql {ANALYZE}]
+  set ::c [list]
+  proc xConflict {args} {
+    lappend ::c $args
+    return "OMIT"
+  }
+  sqlite3changeset_apply db2 $C xConflict
+  set ::c
+} [list {*}{
+  {INSERT sqlite_stat1 CONFLICT {t t3 b {} t 3} {t t3 b {} t 2}}
+}]
+
+db2 null null
+do_execsql_test -db db2 4.2.2 {
+  SELECT * FROM sqlite_stat1 ORDER BY 1,2;
+} {t3 null 2}
+
+do_test 4.2.3 {
+  proc xConflict {args} {
+    return "REPLACE"
+  }
+  sqlite3changeset_apply db2 $C xConflict
+  execsql { SELECT * FROM sqlite_stat1 ORDER BY 1,2 } db2
+} {t3 null 3}
+
+finish_test
diff --git a/ext/session/sessionwor.test b/ext/session/sessionwor.test
new file mode 100644
index 0000000000000000000000000000000000000000..7d9e5c6a897a673018f54d889862ffc73c7c7a83
--- /dev/null
+++ b/ext/session/sessionwor.test
@@ -0,0 +1,123 @@
+# 2017 Jan 31
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# The focus of this file is testing the session module. Specifically,
+# testing support for WITHOUT ROWID tables.
+#
+
+if {![info exists testdir]} {
+  set testdir [file join [file dirname [info script]] .. .. test]
+} 
+source [file join [file dirname [info script]] session_common.tcl]
+source $testdir/tester.tcl
+ifcapable !session {finish_test; return}
+
+set testprefix sessionwor
+
+proc test_reset {} {
+  catch { db close }
+  catch { db2 close }
+  forcedelete test.db test.db2
+  sqlite3 db test.db
+  sqlite3 db2 test.db2
+}
+
+foreach {tn wo} {
+  1 ""
+  2 "WITHOUT ROWID"
+} {
+  reset_db
+
+  do_execsql_test 1.$tn.0 "CREATE TABLE t1(a PRIMARY KEY, b) $wo ;"
+  
+  do_iterator_test 1.$tn.1 t1 {
+    INSERT INTO t1 VALUES('one', 'two');
+  } {
+    {INSERT t1 0 X. {} {t one t two}}
+  }
+  
+  do_iterator_test 1.$tn.2 t1 {
+    UPDATE t1 SET b='three'
+  } {
+    {UPDATE t1 0 X. {t one t two} {{} {} t three}}
+  }
+  
+  do_iterator_test 1.$tn.3 t1 {
+    REPLACE INTO t1 VALUES('one', 'four');
+  } {
+    {UPDATE t1 0 X. {t one t three} {{} {} t four}}
+  }
+  
+  do_iterator_test 1.$tn.4 t1 {
+    DELETE FROM t1;
+  } {
+    {DELETE t1 0 X. {t one t four} {}}
+  }
+}
+
+foreach {tn wo} {
+  1 ""
+  2 "WITHOUT ROWID"
+} {
+  reset_db
+
+  do_execsql_test 2.$tn.0.1 "CREATE TABLE t1(a INTEGER PRIMARY KEY, b) $wo ;"
+  do_execsql_test 2.$tn.0.2 "CREATE TABLE t2(a INTEGER PRIMARY KEY, b) $wo ;"
+  do_execsql_test 2.$tn.0.3 "CREATE TABLE t3(a INTEGER PRIMARY KEY, b) $wo ;"
+  
+  do_iterator_test 1.1 t1 {
+    INSERT INTO t1 VALUES(1, 'two');
+  } {
+    {INSERT t1 0 X. {} {i 1 t two}}
+  }
+  
+  do_iterator_test 2.$tn.2 t1 {
+    UPDATE t1 SET b='three'
+  } {
+    {UPDATE t1 0 X. {i 1 t two} {{} {} t three}}
+  }
+  
+  do_iterator_test 2.$tn.3 t1 {
+    REPLACE INTO t1 VALUES(1, 'four');
+  } {
+    {UPDATE t1 0 X. {i 1 t three} {{} {} t four}}
+  }
+  
+  do_iterator_test 2.$tn.4 t1 {
+    DELETE FROM t1;
+  } {
+    {DELETE t1 0 X. {i 1 t four} {}}
+  }
+
+  do_execsql_test 2.$tn.5 {
+    INSERT INTO t1 VALUES(1, 'one');
+    INSERT INTO t1 VALUES(2, 'two');
+    INSERT INTO t1 VALUES(3, 'three');
+  }
+
+  do_iterator_test 2.$tn.6 t2 {
+    INSERT INTO t2 SELECT a, b FROM t1
+  } {
+    {INSERT t2 0 X. {} {i 1 t one}} 
+    {INSERT t2 0 X. {} {i 2 t two}}
+    {INSERT t2 0 X. {} {i 3 t three}}
+  }
+  do_iterator_test 2.$tn.7 t3 {
+    INSERT INTO t3 SELECT * FROM t1
+  } {
+    {INSERT t3 0 X. {} {i 1 t one}} 
+    {INSERT t3 0 X. {} {i 2 t two}}
+    {INSERT t3 0 X. {} {i 3 t three}}
+  }
+}
+
+finish_test
+
diff --git a/ext/session/sqlite3session.c b/ext/session/sqlite3session.c
new file mode 100644
index 0000000000000000000000000000000000000000..f2eb942e6872d09c961e85cfe8884080ec0e4b1e
--- /dev/null
+++ b/ext/session/sqlite3session.c
@@ -0,0 +1,6536 @@
+
+#if defined(SQLITE_ENABLE_SESSION) && defined(SQLITE_ENABLE_PREUPDATE_HOOK)
+#include "sqlite3session.h"
+#include <assert.h>
+#include <string.h>
+
+#ifndef SQLITE_AMALGAMATION
+# include "sqliteInt.h"
+# include "vdbeInt.h"
+#endif
+
+typedef struct SessionTable SessionTable;
+typedef struct SessionChange SessionChange;
+typedef struct SessionBuffer SessionBuffer;
+typedef struct SessionInput SessionInput;
+
+/*
+** Minimum chunk size used by streaming versions of functions.
+*/
+#ifndef SESSIONS_STRM_CHUNK_SIZE
+# ifdef SQLITE_TEST
+#   define SESSIONS_STRM_CHUNK_SIZE 64
+# else
+#   define SESSIONS_STRM_CHUNK_SIZE 1024
+# endif
+#endif
+
+#define SESSIONS_ROWID "_rowid_"
+
+static int sessions_strm_chunk_size = SESSIONS_STRM_CHUNK_SIZE;
+
+typedef struct SessionHook SessionHook;
+struct SessionHook {
+  void *pCtx;
+  int (*xOld)(void*,int,sqlite3_value**);
+  int (*xNew)(void*,int,sqlite3_value**);
+  int (*xCount)(void*);
+  int (*xDepth)(void*);
+};
+
+/*
+** Session handle structure.
+*/
+struct sqlite3_session {
+  sqlite3 *db;                    /* Database handle session is attached to */
+  char *zDb;                      /* Name of database session is attached to */
+  int bEnableSize;                /* True if changeset_size() enabled */
+  int bEnable;                    /* True if currently recording */
+  int bIndirect;                  /* True if all changes are indirect */
+  int bAutoAttach;                /* True to auto-attach tables */
+  int bImplicitPK;                /* True to handle tables with implicit PK */
+  int rc;                         /* Non-zero if an error has occurred */
+  void *pFilterCtx;               /* First argument to pass to xTableFilter */
+  int (*xTableFilter)(void *pCtx, const char *zTab);
+  i64 nMalloc;                    /* Number of bytes of data allocated */
+  i64 nMaxChangesetSize;
+  sqlite3_value *pZeroBlob;       /* Value containing X'' */
+  sqlite3_session *pNext;         /* Next session object on same db. */
+  SessionTable *pTable;           /* List of attached tables */
+  SessionHook hook;               /* APIs to grab new and old data with */
+};
+
+/*
+** Instances of this structure are used to build strings or binary records.
+*/
+struct SessionBuffer {
+  u8 *aBuf;                       /* Pointer to changeset buffer */
+  int nBuf;                       /* Size of buffer aBuf */
+  int nAlloc;                     /* Size of allocation containing aBuf */
+};
+
+/*
+** An object of this type is used internally as an abstraction for 
+** input data. Input data may be supplied either as a single large buffer
+** (e.g. sqlite3changeset_start()) or using a stream function (e.g.
+**  sqlite3changeset_start_strm()).
+**
+** bNoDiscard:
+**   If true, then the only time data is discarded is as a result of explicit
+**   sessionDiscardData() calls. Not within every sessionInputBuffer() call.
+*/
+struct SessionInput {
+  int bNoDiscard;                 /* If true, do not discard in InputBuffer() */
+  int iCurrent;                   /* Offset in aData[] of current change */
+  int iNext;                      /* Offset in aData[] of next change */
+  u8 *aData;                      /* Pointer to buffer containing changeset */
+  int nData;                      /* Number of bytes in aData */
+
+  SessionBuffer buf;              /* Current read buffer */
+  int (*xInput)(void*, void*, int*);        /* Input stream call (or NULL) */
+  void *pIn;                                /* First argument to xInput */
+  int bEof;                       /* Set to true after xInput finished */
+};
+
+/*
+** Structure for changeset iterators.
+*/
+struct sqlite3_changeset_iter {
+  SessionInput in;                /* Input buffer or stream */
+  SessionBuffer tblhdr;           /* Buffer to hold apValue/zTab/abPK/ */
+  int bPatchset;                  /* True if this is a patchset */
+  int bInvert;                    /* True to invert changeset */
+  int bSkipEmpty;                 /* Skip noop UPDATE changes */
+  int rc;                         /* Iterator error code */
+  sqlite3_stmt *pConflict;        /* Points to conflicting row, if any */
+  char *zTab;                     /* Current table */
+  int nCol;                       /* Number of columns in zTab */
+  int op;                         /* Current operation */
+  int bIndirect;                  /* True if current change was indirect */
+  u8 *abPK;                       /* Primary key array */
+  sqlite3_value **apValue;        /* old.* and new.* values */
+};
+
+/*
+** Each session object maintains a set of the following structures, one
+** for each table the session object is monitoring. The structures are
+** stored in a linked list starting at sqlite3_session.pTable.
+**
+** The keys of the SessionTable.aChange[] hash table are all rows that have
+** been modified in any way since the session object was attached to the
+** table.
+**
+** The data associated with each hash-table entry is a structure containing
+** a subset of the initial values that the modified row contained at the
+** start of the session. Or no initial values if the row was inserted.
+**
+** pDfltStmt:
+**   This is only used by the sqlite3changegroup_xxx() APIs, not by
+**   regular sqlite3_session objects. It is a SELECT statement that
+**   selects the default value for each table column. For example,
+**   if the table is 
+**
+**      CREATE TABLE xx(a DEFAULT 1, b, c DEFAULT 'abc')
+**
+**   then this variable is the compiled version of:
+**
+**      SELECT 1, NULL, 'abc'
+*/
+struct SessionTable {
+  SessionTable *pNext;
+  char *zName;                    /* Local name of table */
+  int nCol;                       /* Number of columns in table zName */
+  int bStat1;                     /* True if this is sqlite_stat1 */
+  int bRowid;                     /* True if this table uses rowid for PK */
+  const char **azCol;             /* Column names */
+  const char **azDflt;            /* Default value expressions */
+  u8 *abPK;                       /* Array of primary key flags */
+  int nEntry;                     /* Total number of entries in hash table */
+  int nChange;                    /* Size of apChange[] array */
+  SessionChange **apChange;       /* Hash table buckets */
+  sqlite3_stmt *pDfltStmt;
+};
+
+/* 
+** RECORD FORMAT:
+**
+** The following record format is similar to (but not compatible with) that 
+** used in SQLite database files. This format is used as part of the 
+** change-set binary format, and so must be architecture independent.
+**
+** Unlike the SQLite database record format, each field is self-contained -
+** there is no separation of header and data. Each field begins with a
+** single byte describing its type, as follows:
+**
+**       0x00: Undefined value.
+**       0x01: Integer value.
+**       0x02: Real value.
+**       0x03: Text value.
+**       0x04: Blob value.
+**       0x05: SQL NULL value.
+**
+** Note that the above match the definitions of SQLITE_INTEGER, SQLITE_TEXT
+** and so on in sqlite3.h. For undefined and NULL values, the field consists
+** only of the single type byte. For other types of values, the type byte
+** is followed by:
+**
+**   Text values:
+**     A varint containing the number of bytes in the value (encoded using
+**     UTF-8). Followed by a buffer containing the UTF-8 representation
+**     of the text value. There is no nul terminator.
+**
+**   Blob values:
+**     A varint containing the number of bytes in the value, followed by
+**     a buffer containing the value itself.
+**
+**   Integer values:
+**     An 8-byte big-endian integer value.
+**
+**   Real values:
+**     An 8-byte big-endian IEEE 754-2008 real value.
+**
+** Varint values are encoded in the same way as varints in the SQLite 
+** record format.
+**
+** CHANGESET FORMAT:
+**
+** A changeset is a collection of DELETE, UPDATE and INSERT operations on
+** one or more tables. Operations on a single table are grouped together,
+** but may occur in any order (i.e. deletes, updates and inserts are all
+** mixed together).
+**
+** Each group of changes begins with a table header:
+**
+**   1 byte: Constant 0x54 (capital 'T')
+**   Varint: Number of columns in the table.
+**   nCol bytes: 0x01 for PK columns, 0x00 otherwise.
+**   N bytes: Unqualified table name (encoded using UTF-8). Nul-terminated.
+**
+** Followed by one or more changes to the table.
+**
+**   1 byte: Either SQLITE_INSERT (0x12), UPDATE (0x17) or DELETE (0x09).
+**   1 byte: The "indirect-change" flag.
+**   old.* record: (delete and update only)
+**   new.* record: (insert and update only)
+**
+** The "old.*" and "new.*" records, if present, are N field records in the
+** format described above under "RECORD FORMAT", where N is the number of
+** columns in the table. The i'th field of each record is associated with
+** the i'th column of the table, counting from left to right in the order
+** in which columns were declared in the CREATE TABLE statement.
+**
+** The new.* record that is part of each INSERT change contains the values
+** that make up the new row. Similarly, the old.* record that is part of each
+** DELETE change contains the values that made up the row that was deleted 
+** from the database. In the changeset format, the records that are part
+** of INSERT or DELETE changes never contain any undefined (type byte 0x00)
+** fields.
+**
+** Within the old.* record associated with an UPDATE change, all fields
+** associated with table columns that are not PRIMARY KEY columns and are
+** not modified by the UPDATE change are set to "undefined". Other fields
+** are set to the values that made up the row before the UPDATE that the
+** change records took place. Within the new.* record, fields associated 
+** with table columns modified by the UPDATE change contain the new 
+** values. Fields associated with table columns that are not modified
+** are set to "undefined".
+**
+** PATCHSET FORMAT:
+**
+** A patchset is also a collection of changes. It is similar to a changeset,
+** but leaves undefined those fields that are not useful if no conflict
+** resolution is required when applying the changeset.
+**
+** Each group of changes begins with a table header:
+**
+**   1 byte: Constant 0x50 (capital 'P')
+**   Varint: Number of columns in the table.
+**   nCol bytes: 0x01 for PK columns, 0x00 otherwise.
+**   N bytes: Unqualified table name (encoded using UTF-8). Nul-terminated.
+**
+** Followed by one or more changes to the table.
+**
+**   1 byte: Either SQLITE_INSERT (0x12), UPDATE (0x17) or DELETE (0x09).
+**   1 byte: The "indirect-change" flag.
+**   single record: (PK fields for DELETE, PK and modified fields for UPDATE,
+**                   full record for INSERT).
+**
+** As in the changeset format, each field of the single record that is part
+** of a patchset change is associated with the correspondingly positioned
+** table column, counting from left to right within the CREATE TABLE 
+** statement.
+**
+** For a DELETE change, all fields within the record except those associated
+** with PRIMARY KEY columns are omitted. The PRIMARY KEY fields contain the
+** values identifying the row to delete.
+**
+** For an UPDATE change, all fields except those associated with PRIMARY KEY
+** columns and columns that are modified by the UPDATE are set to "undefined".
+** PRIMARY KEY fields contain the values identifying the table row to update,
+** and fields associated with modified columns contain the new column values.
+**
+** The records associated with INSERT changes are in the same format as for
+** changesets. It is not possible for a record associated with an INSERT
+** change to contain a field set to "undefined".
+**
+** REBASE BLOB FORMAT:
+**
+** A rebase blob may be output by sqlite3changeset_apply_v2() and its 
+** streaming equivalent for use with the sqlite3_rebaser APIs to rebase
+** existing changesets. A rebase blob contains one entry for each conflict
+** resolved using either the OMIT or REPLACE strategies within the apply_v2()
+** call.
+**
+** The format used for a rebase blob is very similar to that used for
+** changesets. All entries related to a single table are grouped together.
+**
+** Each group of entries begins with a table header in changeset format:
+**
+**   1 byte: Constant 0x54 (capital 'T')
+**   Varint: Number of columns in the table.
+**   nCol bytes: 0x01 for PK columns, 0x00 otherwise.
+**   N bytes: Unqualified table name (encoded using UTF-8). Nul-terminated.
+**
+** Followed by one or more entries associated with the table.
+**
+**   1 byte: Either SQLITE_INSERT (0x12), DELETE (0x09).
+**   1 byte: Flag. 0x01 for REPLACE, 0x00 for OMIT.
+**   record: (in the record format defined above).
+**
+** In a rebase blob, the first field is set to SQLITE_INSERT if the change
+** that caused the conflict was an INSERT or UPDATE, or to SQLITE_DELETE if
+** it was a DELETE. The second field is set to 0x01 if the conflict 
+** resolution strategy was REPLACE, or 0x00 if it was OMIT.
+**
+** If the change that caused the conflict was a DELETE, then the single
+** record is a copy of the old.* record from the original changeset. If it
+** was an INSERT, then the single record is a copy of the new.* record. If
+** the conflicting change was an UPDATE, then the single record is a copy
+** of the new.* record with the PK fields filled in based on the original
+** old.* record.
+*/
+
+/*
+** For each row modified during a session, there exists a single instance of
+** this structure stored in a SessionTable.aChange[] hash table.
+*/
+struct SessionChange {
+  u8 op;                          /* One of UPDATE, DELETE, INSERT */
+  u8 bIndirect;                   /* True if this change is "indirect" */
+  u16 nRecordField;               /* Number of fields in aRecord[] */
+  int nMaxSize;                   /* Max size of eventual changeset record */
+  int nRecord;                    /* Number of bytes in buffer aRecord[] */
+  u8 *aRecord;                    /* Buffer containing old.* record */
+  SessionChange *pNext;           /* For hash-table collisions */
+};
+
+/*
+** Write a varint with value iVal into the buffer at aBuf. Return the 
+** number of bytes written.
+*/
+static int sessionVarintPut(u8 *aBuf, int iVal){
+  return putVarint32(aBuf, iVal);
+}
+
+/*
+** Return the number of bytes required to store value iVal as a varint.
+*/
+static int sessionVarintLen(int iVal){
+  return sqlite3VarintLen(iVal);
+}
+
+/*
+** Read a varint value from aBuf[] into *piVal. Return the number of 
+** bytes read.
+*/
+static int sessionVarintGet(const u8 *aBuf, int *piVal){
+  return getVarint32(aBuf, *piVal);
+}
+
+/* Load an unaligned and unsigned 32-bit integer */
+#define SESSION_UINT32(x) (((u32)(x)[0]<<24)|((x)[1]<<16)|((x)[2]<<8)|(x)[3])
+
+/*
+** Read a 64-bit big-endian integer value from buffer aRec[]. Return
+** the value read.
+*/
+static sqlite3_int64 sessionGetI64(u8 *aRec){
+  u64 x = SESSION_UINT32(aRec);
+  u32 y = SESSION_UINT32(aRec+4);
+  x = (x<<32) + y;
+  return (sqlite3_int64)x;
+}
+
+/*
+** Write a 64-bit big-endian integer value to the buffer aBuf[].
+*/
+static void sessionPutI64(u8 *aBuf, sqlite3_int64 i){
+  aBuf[0] = (i>>56) & 0xFF;
+  aBuf[1] = (i>>48) & 0xFF;
+  aBuf[2] = (i>>40) & 0xFF;
+  aBuf[3] = (i>>32) & 0xFF;
+  aBuf[4] = (i>>24) & 0xFF;
+  aBuf[5] = (i>>16) & 0xFF;
+  aBuf[6] = (i>> 8) & 0xFF;
+  aBuf[7] = (i>> 0) & 0xFF;
+}
+
+/*
+** This function is used to serialize the contents of value pValue (see
+** comment titled "RECORD FORMAT" above).
+**
+** If it is non-NULL, the serialized form of the value is written to 
+** buffer aBuf. *pnWrite is set to the number of bytes written before
+** returning. Or, if aBuf is NULL, the only thing this function does is
+** set *pnWrite.
+**
+** If no error occurs, SQLITE_OK is returned. Or, if an OOM error occurs
+** within a call to sqlite3_value_text() (may fail if the db is utf-16)) 
+** SQLITE_NOMEM is returned.
+*/
+static int sessionSerializeValue(
+  u8 *aBuf,                       /* If non-NULL, write serialized value here */
+  sqlite3_value *pValue,          /* Value to serialize */
+  sqlite3_int64 *pnWrite          /* IN/OUT: Increment by bytes written */
+){
+  int nByte;                      /* Size of serialized value in bytes */
+
+  if( pValue ){
+    int eType;                    /* Value type (SQLITE_NULL, TEXT etc.) */
+  
+    eType = sqlite3_value_type(pValue);
+    if( aBuf ) aBuf[0] = eType;
+  
+    switch( eType ){
+      case SQLITE_NULL: 
+        nByte = 1;
+        break;
+  
+      case SQLITE_INTEGER: 
+      case SQLITE_FLOAT:
+        if( aBuf ){
+          /* TODO: SQLite does something special to deal with mixed-endian
+          ** floating point values (e.g. ARM7). This code probably should
+          ** too.  */
+          u64 i;
+          if( eType==SQLITE_INTEGER ){
+            i = (u64)sqlite3_value_int64(pValue);
+          }else{
+            double r;
+            assert( sizeof(double)==8 && sizeof(u64)==8 );
+            r = sqlite3_value_double(pValue);
+            memcpy(&i, &r, 8);
+          }
+          sessionPutI64(&aBuf[1], i);
+        }
+        nByte = 9; 
+        break;
+  
+      default: {
+        u8 *z;
+        int n;
+        int nVarint;
+  
+        assert( eType==SQLITE_TEXT || eType==SQLITE_BLOB );
+        if( eType==SQLITE_TEXT ){
+          z = (u8 *)sqlite3_value_text(pValue);
+        }else{
+          z = (u8 *)sqlite3_value_blob(pValue);
+        }
+        n = sqlite3_value_bytes(pValue);
+        if( z==0 && (eType!=SQLITE_BLOB || n>0) ) return SQLITE_NOMEM;
+        nVarint = sessionVarintLen(n);
+  
+        if( aBuf ){
+          sessionVarintPut(&aBuf[1], n);
+          if( n>0 ) memcpy(&aBuf[nVarint + 1], z, n);
+        }
+  
+        nByte = 1 + nVarint + n;
+        break;
+      }
+    }
+  }else{
+    nByte = 1;
+    if( aBuf ) aBuf[0] = '\0';
+  }
+
+  if( pnWrite ) *pnWrite += nByte;
+  return SQLITE_OK;
+}
+
+/*
+** Allocate and return a pointer to a buffer nByte bytes in size. If
+** pSession is not NULL, increase the sqlite3_session.nMalloc variable
+** by the number of bytes allocated.
+*/
+static void *sessionMalloc64(sqlite3_session *pSession, i64 nByte){
+  void *pRet = sqlite3_malloc64(nByte);
+  if( pSession ) pSession->nMalloc += sqlite3_msize(pRet);
+  return pRet;
+}
+
+/*
+** Free buffer pFree, which must have been allocated by an earlier
+** call to sessionMalloc64(). If pSession is not NULL, decrease the
+** sqlite3_session.nMalloc counter by the number of bytes freed.
+*/
+static void sessionFree(sqlite3_session *pSession, void *pFree){
+  if( pSession ) pSession->nMalloc -= sqlite3_msize(pFree);
+  sqlite3_free(pFree);
+}
+
+/*
+** This macro is used to calculate hash key values for data structures. In
+** order to use this macro, the entire data structure must be represented
+** as a series of unsigned integers. In order to calculate a hash-key value
+** for a data structure represented as three such integers, the macro may
+** then be used as follows:
+**
+**    int hash_key_value;
+**    hash_key_value = HASH_APPEND(0, <value 1>);
+**    hash_key_value = HASH_APPEND(hash_key_value, <value 2>);
+**    hash_key_value = HASH_APPEND(hash_key_value, <value 3>);
+**
+** In practice, the data structures this macro is used for are the primary
+** key values of modified rows.
+*/
+#define HASH_APPEND(hash, add) ((hash) << 3) ^ (hash) ^ (unsigned int)(add)
+
+/*
+** Append the hash of the 64-bit integer passed as the second argument to the
+** hash-key value passed as the first. Return the new hash-key value.
+*/
+static unsigned int sessionHashAppendI64(unsigned int h, i64 i){
+  h = HASH_APPEND(h, i & 0xFFFFFFFF);
+  return HASH_APPEND(h, (i>>32)&0xFFFFFFFF);
+}
+
+/*
+** Append the hash of the blob passed via the second and third arguments to 
+** the hash-key value passed as the first. Return the new hash-key value.
+*/
+static unsigned int sessionHashAppendBlob(unsigned int h, int n, const u8 *z){
+  int i;
+  for(i=0; i<n; i++) h = HASH_APPEND(h, z[i]);
+  return h;
+}
+
+/*
+** Append the hash of the data type passed as the second argument to the
+** hash-key value passed as the first. Return the new hash-key value.
+*/
+static unsigned int sessionHashAppendType(unsigned int h, int eType){
+  return HASH_APPEND(h, eType);
+}
+
+/*
+** This function may only be called from within a pre-update callback.
+** It calculates a hash based on the primary key values of the old.* or 
+** new.* row currently available and, assuming no error occurs, writes it to
+** *piHash before returning. If the primary key contains one or more NULL
+** values, *pbNullPK is set to true before returning.
+**
+** If an error occurs, an SQLite error code is returned and the final values
+** of *piHash asn *pbNullPK are undefined. Otherwise, SQLITE_OK is returned
+** and the output variables are set as described above.
+*/
+static int sessionPreupdateHash(
+  sqlite3_session *pSession,      /* Session object that owns pTab */
+  i64 iRowid,
+  SessionTable *pTab,             /* Session table handle */
+  int bNew,                       /* True to hash the new.* PK */
+  int *piHash,                    /* OUT: Hash value */
+  int *pbNullPK                   /* OUT: True if there are NULL values in PK */
+){
+  unsigned int h = 0;             /* Hash value to return */
+  int i;                          /* Used to iterate through columns */
+
+  if( pTab->bRowid ){
+    assert( pTab->nCol-1==pSession->hook.xCount(pSession->hook.pCtx) );
+    h = sessionHashAppendI64(h, iRowid);
+  }else{
+    assert( *pbNullPK==0 );
+    assert( pTab->nCol==pSession->hook.xCount(pSession->hook.pCtx) );
+    for(i=0; i<pTab->nCol; i++){
+      if( pTab->abPK[i] ){
+        int rc;
+        int eType;
+        sqlite3_value *pVal;
+
+        if( bNew ){
+          rc = pSession->hook.xNew(pSession->hook.pCtx, i, &pVal);
+        }else{
+          rc = pSession->hook.xOld(pSession->hook.pCtx, i, &pVal);
+        }
+        if( rc!=SQLITE_OK ) return rc;
+
+        eType = sqlite3_value_type(pVal);
+        h = sessionHashAppendType(h, eType);
+        if( eType==SQLITE_INTEGER || eType==SQLITE_FLOAT ){
+          i64 iVal;
+          if( eType==SQLITE_INTEGER ){
+            iVal = sqlite3_value_int64(pVal);
+          }else{
+            double rVal = sqlite3_value_double(pVal);
+            assert( sizeof(iVal)==8 && sizeof(rVal)==8 );
+            memcpy(&iVal, &rVal, 8);
+          }
+          h = sessionHashAppendI64(h, iVal);
+        }else if( eType==SQLITE_TEXT || eType==SQLITE_BLOB ){
+          const u8 *z;
+          int n;
+          if( eType==SQLITE_TEXT ){
+            z = (const u8 *)sqlite3_value_text(pVal);
+          }else{
+            z = (const u8 *)sqlite3_value_blob(pVal);
+          }
+          n = sqlite3_value_bytes(pVal);
+          if( !z && (eType!=SQLITE_BLOB || n>0) ) return SQLITE_NOMEM;
+          h = sessionHashAppendBlob(h, n, z);
+        }else{
+          assert( eType==SQLITE_NULL );
+          assert( pTab->bStat1==0 || i!=1 );
+          *pbNullPK = 1;
+        }
+      }
+    }
+  }
+
+  *piHash = (h % pTab->nChange);
+  return SQLITE_OK;
+}
+
+/*
+** The buffer that the argument points to contains a serialized SQL value.
+** Return the number of bytes of space occupied by the value (including
+** the type byte).
+*/
+static int sessionSerialLen(const u8 *a){
+  int e;
+  int n;
+  assert( a!=0 );
+  e = *a;
+  if( e==0 || e==0xFF ) return 1;
+  if( e==SQLITE_NULL ) return 1;
+  if( e==SQLITE_INTEGER || e==SQLITE_FLOAT ) return 9;
+  return sessionVarintGet(&a[1], &n) + 1 + n;
+}
+
+/*
+** Based on the primary key values stored in change aRecord, calculate a
+** hash key. Assume the has table has nBucket buckets. The hash keys
+** calculated by this function are compatible with those calculated by
+** sessionPreupdateHash().
+**
+** The bPkOnly argument is non-zero if the record at aRecord[] is from
+** a patchset DELETE. In this case the non-PK fields are omitted entirely.
+*/
+static unsigned int sessionChangeHash(
+  SessionTable *pTab,             /* Table handle */
+  int bPkOnly,                    /* Record consists of PK fields only */
+  u8 *aRecord,                    /* Change record */
+  int nBucket                     /* Assume this many buckets in hash table */
+){
+  unsigned int h = 0;             /* Value to return */
+  int i;                          /* Used to iterate through columns */
+  u8 *a = aRecord;                /* Used to iterate through change record */
+
+  for(i=0; i<pTab->nCol; i++){
+    int eType = *a;
+    int isPK = pTab->abPK[i];
+    if( bPkOnly && isPK==0 ) continue;
+
+    /* It is not possible for eType to be SQLITE_NULL here. The session 
+    ** module does not record changes for rows with NULL values stored in
+    ** primary key columns. */
+    assert( eType==SQLITE_INTEGER || eType==SQLITE_FLOAT 
+         || eType==SQLITE_TEXT || eType==SQLITE_BLOB 
+         || eType==SQLITE_NULL || eType==0 
+    );
+    assert( !isPK || (eType!=0 && eType!=SQLITE_NULL) );
+
+    if( isPK ){
+      a++;
+      h = sessionHashAppendType(h, eType);
+      if( eType==SQLITE_INTEGER || eType==SQLITE_FLOAT ){
+        h = sessionHashAppendI64(h, sessionGetI64(a));
+        a += 8;
+      }else{
+        int n; 
+        a += sessionVarintGet(a, &n);
+        h = sessionHashAppendBlob(h, n, a);
+        a += n;
+      }
+    }else{
+      a += sessionSerialLen(a);
+    }
+  }
+  return (h % nBucket);
+}
+
+/*
+** Arguments aLeft and aRight are pointers to change records for table pTab.
+** This function returns true if the two records apply to the same row (i.e.
+** have the same values stored in the primary key columns), or false 
+** otherwise.
+*/
+static int sessionChangeEqual(
+  SessionTable *pTab,             /* Table used for PK definition */
+  int bLeftPkOnly,                /* True if aLeft[] contains PK fields only */
+  u8 *aLeft,                      /* Change record */
+  int bRightPkOnly,               /* True if aRight[] contains PK fields only */
+  u8 *aRight                      /* Change record */
+){
+  u8 *a1 = aLeft;                 /* Cursor to iterate through aLeft */
+  u8 *a2 = aRight;                /* Cursor to iterate through aRight */
+  int iCol;                       /* Used to iterate through table columns */
+
+  for(iCol=0; iCol<pTab->nCol; iCol++){
+    if( pTab->abPK[iCol] ){
+      int n1 = sessionSerialLen(a1);
+      int n2 = sessionSerialLen(a2);
+
+      if( n1!=n2 || memcmp(a1, a2, n1) ){
+        return 0;
+      }
+      a1 += n1;
+      a2 += n2;
+    }else{
+      if( bLeftPkOnly==0 ) a1 += sessionSerialLen(a1);
+      if( bRightPkOnly==0 ) a2 += sessionSerialLen(a2);
+    }
+  }
+
+  return 1;
+}
+
+/*
+** Arguments aLeft and aRight both point to buffers containing change
+** records with nCol columns. This function "merges" the two records into
+** a single records which is written to the buffer at *paOut. *paOut is
+** then set to point to one byte after the last byte written before 
+** returning.
+**
+** The merging of records is done as follows: For each column, if the 
+** aRight record contains a value for the column, copy the value from
+** their. Otherwise, if aLeft contains a value, copy it. If neither
+** record contains a value for a given column, then neither does the
+** output record.
+*/
+static void sessionMergeRecord(
+  u8 **paOut, 
+  int nCol,
+  u8 *aLeft,
+  u8 *aRight
+){
+  u8 *a1 = aLeft;                 /* Cursor used to iterate through aLeft */
+  u8 *a2 = aRight;                /* Cursor used to iterate through aRight */
+  u8 *aOut = *paOut;              /* Output cursor */
+  int iCol;                       /* Used to iterate from 0 to nCol */
+
+  for(iCol=0; iCol<nCol; iCol++){
+    int n1 = sessionSerialLen(a1);
+    int n2 = sessionSerialLen(a2);
+    if( *a2 ){
+      memcpy(aOut, a2, n2);
+      aOut += n2;
+    }else{
+      memcpy(aOut, a1, n1);
+      aOut += n1;
+    }
+    a1 += n1;
+    a2 += n2;
+  }
+
+  *paOut = aOut;
+}
+
+/*
+** This is a helper function used by sessionMergeUpdate().
+**
+** When this function is called, both *paOne and *paTwo point to a value 
+** within a change record. Before it returns, both have been advanced so 
+** as to point to the next value in the record.
+**
+** If, when this function is called, *paTwo points to a valid value (i.e.
+** *paTwo[0] is not 0x00 - the "no value" placeholder), a copy of the *paTwo
+** pointer is returned and *pnVal is set to the number of bytes in the 
+** serialized value. Otherwise, a copy of *paOne is returned and *pnVal
+** set to the number of bytes in the value at *paOne. If *paOne points
+** to the "no value" placeholder, *pnVal is set to 1. In other words:
+**
+**   if( *paTwo is valid ) return *paTwo;
+**   return *paOne;
+**
+*/
+static u8 *sessionMergeValue(
+  u8 **paOne,                     /* IN/OUT: Left-hand buffer pointer */
+  u8 **paTwo,                     /* IN/OUT: Right-hand buffer pointer */
+  int *pnVal                      /* OUT: Bytes in returned value */
+){
+  u8 *a1 = *paOne;
+  u8 *a2 = *paTwo;
+  u8 *pRet = 0;
+  int n1;
+
+  assert( a1 );
+  if( a2 ){
+    int n2 = sessionSerialLen(a2);
+    if( *a2 ){
+      *pnVal = n2;
+      pRet = a2;
+    }
+    *paTwo = &a2[n2];
+  }
+
+  n1 = sessionSerialLen(a1);
+  if( pRet==0 ){
+    *pnVal = n1;
+    pRet = a1;
+  }
+  *paOne = &a1[n1];
+
+  return pRet;
+}
+
+/*
+** This function is used by changeset_concat() to merge two UPDATE changes
+** on the same row.
+*/
+static int sessionMergeUpdate(
+  u8 **paOut,                     /* IN/OUT: Pointer to output buffer */
+  SessionTable *pTab,             /* Table change pertains to */
+  int bPatchset,                  /* True if records are patchset records */
+  u8 *aOldRecord1,                /* old.* record for first change */
+  u8 *aOldRecord2,                /* old.* record for second change */
+  u8 *aNewRecord1,                /* new.* record for first change */
+  u8 *aNewRecord2                 /* new.* record for second change */
+){
+  u8 *aOld1 = aOldRecord1;
+  u8 *aOld2 = aOldRecord2;
+  u8 *aNew1 = aNewRecord1;
+  u8 *aNew2 = aNewRecord2;
+
+  u8 *aOut = *paOut;
+  int i;
+
+  if( bPatchset==0 ){
+    int bRequired = 0;
+
+    assert( aOldRecord1 && aNewRecord1 );
+
+    /* Write the old.* vector first. */
+    for(i=0; i<pTab->nCol; i++){
+      int nOld;
+      u8 *aOld;
+      int nNew;
+      u8 *aNew;
+
+      aOld = sessionMergeValue(&aOld1, &aOld2, &nOld);
+      aNew = sessionMergeValue(&aNew1, &aNew2, &nNew);
+      if( pTab->abPK[i] || nOld!=nNew || memcmp(aOld, aNew, nNew) ){
+        if( pTab->abPK[i]==0 ) bRequired = 1;
+        memcpy(aOut, aOld, nOld);
+        aOut += nOld;
+      }else{
+        *(aOut++) = '\0';
+      }
+    }
+
+    if( !bRequired ) return 0;
+  }
+
+  /* Write the new.* vector */
+  aOld1 = aOldRecord1;
+  aOld2 = aOldRecord2;
+  aNew1 = aNewRecord1;
+  aNew2 = aNewRecord2;
+  for(i=0; i<pTab->nCol; i++){
+    int nOld;
+    u8 *aOld;
+    int nNew;
+    u8 *aNew;
+
+    aOld = sessionMergeValue(&aOld1, &aOld2, &nOld);
+    aNew = sessionMergeValue(&aNew1, &aNew2, &nNew);
+    if( bPatchset==0 
+     && (pTab->abPK[i] || (nOld==nNew && 0==memcmp(aOld, aNew, nNew))) 
+    ){
+      *(aOut++) = '\0';
+    }else{
+      memcpy(aOut, aNew, nNew);
+      aOut += nNew;
+    }
+  }
+
+  *paOut = aOut;
+  return 1;
+}
+
+/*
+** This function is only called from within a pre-update-hook callback.
+** It determines if the current pre-update-hook change affects the same row
+** as the change stored in argument pChange. If so, it returns true. Otherwise
+** if the pre-update-hook does not affect the same row as pChange, it returns
+** false.
+*/
+static int sessionPreupdateEqual(
+  sqlite3_session *pSession,      /* Session object that owns SessionTable */
+  i64 iRowid,                     /* Rowid value if pTab->bRowid */
+  SessionTable *pTab,             /* Table associated with change */
+  SessionChange *pChange,         /* Change to compare to */
+  int op                          /* Current pre-update operation */
+){
+  int iCol;                       /* Used to iterate through columns */
+  u8 *a = pChange->aRecord;       /* Cursor used to scan change record */
+
+  if( pTab->bRowid ){
+    if( a[0]!=SQLITE_INTEGER ) return 0;
+    return sessionGetI64(&a[1])==iRowid;
+  }
+
+  assert( op==SQLITE_INSERT || op==SQLITE_UPDATE || op==SQLITE_DELETE );
+  for(iCol=0; iCol<pTab->nCol; iCol++){
+    if( !pTab->abPK[iCol] ){
+      a += sessionSerialLen(a);
+    }else{
+      sqlite3_value *pVal;        /* Value returned by preupdate_new/old */
+      int rc;                     /* Error code from preupdate_new/old */
+      int eType = *a++;           /* Type of value from change record */
+
+      /* The following calls to preupdate_new() and preupdate_old() can not
+      ** fail. This is because they cache their return values, and by the
+      ** time control flows to here they have already been called once from
+      ** within sessionPreupdateHash(). The first two asserts below verify
+      ** this (that the method has already been called). */
+      if( op==SQLITE_INSERT ){
+        /* assert( db->pPreUpdate->pNewUnpacked || db->pPreUpdate->aNew ); */
+        rc = pSession->hook.xNew(pSession->hook.pCtx, iCol, &pVal);
+      }else{
+        /* assert( db->pPreUpdate->pUnpacked ); */
+        rc = pSession->hook.xOld(pSession->hook.pCtx, iCol, &pVal);
+      }
+      assert( rc==SQLITE_OK );
+      (void)rc;                   /* Suppress warning about unused variable */
+      if( sqlite3_value_type(pVal)!=eType ) return 0;
+
+      /* A SessionChange object never has a NULL value in a PK column */
+      assert( eType==SQLITE_INTEGER || eType==SQLITE_FLOAT
+           || eType==SQLITE_BLOB    || eType==SQLITE_TEXT
+      );
+
+      if( eType==SQLITE_INTEGER || eType==SQLITE_FLOAT ){
+        i64 iVal = sessionGetI64(a);
+        a += 8;
+        if( eType==SQLITE_INTEGER ){
+          if( sqlite3_value_int64(pVal)!=iVal ) return 0;
+        }else{
+          double rVal;
+          assert( sizeof(iVal)==8 && sizeof(rVal)==8 );
+          memcpy(&rVal, &iVal, 8);
+          if( sqlite3_value_double(pVal)!=rVal ) return 0;
+        }
+      }else{
+        int n;
+        const u8 *z;
+        a += sessionVarintGet(a, &n);
+        if( sqlite3_value_bytes(pVal)!=n ) return 0;
+        if( eType==SQLITE_TEXT ){
+          z = sqlite3_value_text(pVal);
+        }else{
+          z = sqlite3_value_blob(pVal);
+        }
+        if( n>0 && memcmp(a, z, n) ) return 0;
+        a += n;
+      }
+    }
+  }
+
+  return 1;
+}
+
+/*
+** If required, grow the hash table used to store changes on table pTab 
+** (part of the session pSession). If a fatal OOM error occurs, set the
+** session object to failed and return SQLITE_ERROR. Otherwise, return
+** SQLITE_OK.
+**
+** It is possible that a non-fatal OOM error occurs in this function. In
+** that case the hash-table does not grow, but SQLITE_OK is returned anyway.
+** Growing the hash table in this case is a performance optimization only,
+** it is not required for correct operation.
+*/
+static int sessionGrowHash(
+  sqlite3_session *pSession,      /* For memory accounting. May be NULL */
+  int bPatchset, 
+  SessionTable *pTab
+){
+  if( pTab->nChange==0 || pTab->nEntry>=(pTab->nChange/2) ){
+    int i;
+    SessionChange **apNew;
+    sqlite3_int64 nNew = 2*(sqlite3_int64)(pTab->nChange ? pTab->nChange : 128);
+
+    apNew = (SessionChange**)sessionMalloc64(
+        pSession, sizeof(SessionChange*) * nNew
+    );
+    if( apNew==0 ){
+      if( pTab->nChange==0 ){
+        return SQLITE_ERROR;
+      }
+      return SQLITE_OK;
+    }
+    memset(apNew, 0, sizeof(SessionChange *) * nNew);
+
+    for(i=0; i<pTab->nChange; i++){
+      SessionChange *p;
+      SessionChange *pNext;
+      for(p=pTab->apChange[i]; p; p=pNext){
+        int bPkOnly = (p->op==SQLITE_DELETE && bPatchset);
+        int iHash = sessionChangeHash(pTab, bPkOnly, p->aRecord, nNew);
+        pNext = p->pNext;
+        p->pNext = apNew[iHash];
+        apNew[iHash] = p;
+      }
+    }
+
+    sessionFree(pSession, pTab->apChange);
+    pTab->nChange = nNew;
+    pTab->apChange = apNew;
+  }
+
+  return SQLITE_OK;
+}
+
+/*
+** This function queries the database for the names of the columns of table
+** zThis, in schema zDb.
+**
+** Otherwise, if they are not NULL, variable *pnCol is set to the number
+** of columns in the database table and variable *pzTab is set to point to a
+** nul-terminated copy of the table name. *pazCol (if not NULL) is set to
+** point to an array of pointers to column names. And *pabPK (again, if not
+** NULL) is set to point to an array of booleans - true if the corresponding
+** column is part of the primary key.
+**
+** For example, if the table is declared as:
+**
+**     CREATE TABLE tbl1(w, x DEFAULT 'abc', y, z, PRIMARY KEY(w, z));
+**
+** Then the five output variables are populated as follows:
+**
+**     *pnCol  = 4
+**     *pzTab  = "tbl1"
+**     *pazCol = {"w", "x", "y", "z"}
+**     *pazDflt = {NULL, 'abc', NULL, NULL}
+**     *pabPK  = {1, 0, 0, 1}
+**
+** All returned buffers are part of the same single allocation, which must
+** be freed using sqlite3_free() by the caller
+*/
+static int sessionTableInfo(
+  sqlite3_session *pSession,      /* For memory accounting. May be NULL */
+  sqlite3 *db,                    /* Database connection */
+  const char *zDb,                /* Name of attached database (e.g. "main") */
+  const char *zThis,              /* Table name */
+  int *pnCol,                     /* OUT: number of columns */
+  const char **pzTab,             /* OUT: Copy of zThis */
+  const char ***pazCol,           /* OUT: Array of column names for table */
+  const char ***pazDflt,          /* OUT: Array of default value expressions */
+  u8 **pabPK,                     /* OUT: Array of booleans - true for PK col */
+  int *pbRowid                    /* OUT: True if only PK is a rowid */
+){
+  char *zPragma;
+  sqlite3_stmt *pStmt;
+  int rc;
+  sqlite3_int64 nByte;
+  int nDbCol = 0;
+  int nThis;
+  int i;
+  u8 *pAlloc = 0;
+  char **azCol = 0;
+  char **azDflt = 0;
+  u8 *abPK = 0;
+  int bRowid = 0;                 /* Set to true to use rowid as PK */
+
+  assert( pazCol && pabPK );
+
+  *pazCol = 0;
+  *pabPK = 0;
+  *pnCol = 0;
+  if( pzTab ) *pzTab = 0;
+  if( pazDflt ) *pazDflt = 0;
+
+  nThis = sqlite3Strlen30(zThis);
+  if( nThis==12 && 0==sqlite3_stricmp("sqlite_stat1", zThis) ){
+    rc = sqlite3_table_column_metadata(db, zDb, zThis, 0, 0, 0, 0, 0, 0);
+    if( rc==SQLITE_OK ){
+      /* For sqlite_stat1, pretend that (tbl,idx) is the PRIMARY KEY. */
+      zPragma = sqlite3_mprintf(
+          "SELECT 0, 'tbl',  '', 0, '', 1     UNION ALL "
+          "SELECT 1, 'idx',  '', 0, '', 2     UNION ALL "
+          "SELECT 2, 'stat', '', 0, '', 0"
+      );
+    }else if( rc==SQLITE_ERROR ){
+      zPragma = sqlite3_mprintf("");
+    }else{
+      return rc;
+    }
+  }else{
+    zPragma = sqlite3_mprintf("PRAGMA '%q'.table_info('%q')", zDb, zThis);
+  }
+  if( !zPragma ){
+    return SQLITE_NOMEM;
+  }
+
+  rc = sqlite3_prepare_v2(db, zPragma, -1, &pStmt, 0);
+  sqlite3_free(zPragma);
+  if( rc!=SQLITE_OK ){
+    return rc;
+  }
+
+  nByte = nThis + 1;
+  bRowid = (pbRowid!=0);
+  while( SQLITE_ROW==sqlite3_step(pStmt) ){
+    nByte += sqlite3_column_bytes(pStmt, 1);          /* name */
+    nByte += sqlite3_column_bytes(pStmt, 4);          /* dflt_value */
+    nDbCol++;
+    if( sqlite3_column_int(pStmt, 5) ) bRowid = 0;    /* pk */
+  }
+  if( nDbCol==0 ) bRowid = 0;
+  nDbCol += bRowid;
+  nByte += strlen(SESSIONS_ROWID);
+  rc = sqlite3_reset(pStmt);
+
+  if( rc==SQLITE_OK ){
+    nByte += nDbCol * (sizeof(const char *)*2 + sizeof(u8) + 1 + 1);
+    pAlloc = sessionMalloc64(pSession, nByte);
+    if( pAlloc==0 ){
+      rc = SQLITE_NOMEM;
+    }else{
+      memset(pAlloc, 0, nByte);
+    }
+  }
+  if( rc==SQLITE_OK ){
+    azCol = (char **)pAlloc;
+    azDflt = (char**)&azCol[nDbCol];
+    pAlloc = (u8 *)&azDflt[nDbCol];
+    abPK = (u8 *)pAlloc;
+    pAlloc = &abPK[nDbCol];
+    if( pzTab ){
+      memcpy(pAlloc, zThis, nThis+1);
+      *pzTab = (char *)pAlloc;
+      pAlloc += nThis+1;
+    }
+  
+    i = 0;
+    if( bRowid ){
+      size_t nName = strlen(SESSIONS_ROWID);
+      memcpy(pAlloc, SESSIONS_ROWID, nName+1);
+      azCol[i] = (char*)pAlloc;
+      pAlloc += nName+1;
+      abPK[i] = 1;
+      i++;
+    }
+    while( SQLITE_ROW==sqlite3_step(pStmt) ){
+      int nName = sqlite3_column_bytes(pStmt, 1);
+      int nDflt = sqlite3_column_bytes(pStmt, 4);
+      const unsigned char *zName = sqlite3_column_text(pStmt, 1);
+      const unsigned char *zDflt = sqlite3_column_text(pStmt, 4);
+
+      if( zName==0 ) break;
+      memcpy(pAlloc, zName, nName+1);
+      azCol[i] = (char *)pAlloc;
+      pAlloc += nName+1;
+      if( zDflt ){
+        memcpy(pAlloc, zDflt, nDflt+1);
+        azDflt[i] = (char *)pAlloc;
+        pAlloc += nDflt+1;
+      }else{
+        azDflt[i] = 0;
+      }
+      abPK[i] = sqlite3_column_int(pStmt, 5);
+      i++;
+    }
+    rc = sqlite3_reset(pStmt);
+  }
+
+  /* If successful, populate the output variables. Otherwise, zero them and
+  ** free any allocation made. An error code will be returned in this case.
+  */
+  if( rc==SQLITE_OK ){
+    *pazCol = (const char**)azCol;
+    if( pazDflt ) *pazDflt = (const char**)azDflt;
+    *pabPK = abPK;
+    *pnCol = nDbCol;
+  }else{
+    sessionFree(pSession, azCol);
+  }
+  if( pbRowid ) *pbRowid = bRowid;
+  sqlite3_finalize(pStmt);
+  return rc;
+}
+
+/*
+** This function is called to initialize the SessionTable.nCol, azCol[]
+** abPK[] and azDflt[] members of SessionTable object pTab. If these
+** fields are already initilialized, this function is a no-op.
+**
+** If an error occurs, an error code is stored in sqlite3_session.rc and
+** non-zero returned. Or, if no error occurs but the table has no primary
+** key, sqlite3_session.rc is left set to SQLITE_OK and non-zero returned to
+** indicate that updates on this table should be ignored. SessionTable.abPK 
+** is set to NULL in this case.
+*/
+static int sessionInitTable(
+  sqlite3_session *pSession,      /* Optional session handle */
+  SessionTable *pTab,             /* Table object to initialize */
+  sqlite3 *db,                    /* Database handle to read schema from */
+  const char *zDb                 /* Name of db - "main", "temp" etc. */
+){
+  int rc = SQLITE_OK;
+
+  if( pTab->nCol==0 ){
+    u8 *abPK;
+    assert( pTab->azCol==0 || pTab->abPK==0 );
+    rc = sessionTableInfo(pSession, db, zDb, 
+        pTab->zName, &pTab->nCol, 0, &pTab->azCol, &pTab->azDflt, &abPK,
+        ((pSession==0 || pSession->bImplicitPK) ? &pTab->bRowid : 0)
+    );
+    if( rc==SQLITE_OK ){
+      int i;
+      for(i=0; i<pTab->nCol; i++){
+        if( abPK[i] ){
+          pTab->abPK = abPK;
+          break;
+        }
+      }
+      if( 0==sqlite3_stricmp("sqlite_stat1", pTab->zName) ){
+        pTab->bStat1 = 1;
+      }
+
+      if( pSession && pSession->bEnableSize ){
+        pSession->nMaxChangesetSize += (
+          1 + sessionVarintLen(pTab->nCol) + pTab->nCol + strlen(pTab->zName)+1
+        );
+      }
+    }
+  }
+
+  if( pSession ){
+    pSession->rc = rc;
+    return (rc || pTab->abPK==0);
+  }
+  return rc;
+}
+
+/*
+** Re-initialize table object pTab.
+*/
+static int sessionReinitTable(sqlite3_session *pSession, SessionTable *pTab){
+  int nCol = 0;
+  const char **azCol = 0;
+  const char **azDflt = 0;
+  u8 *abPK = 0; 
+  int bRowid = 0;
+
+  assert( pSession->rc==SQLITE_OK );
+
+  pSession->rc = sessionTableInfo(pSession, pSession->db, pSession->zDb, 
+      pTab->zName, &nCol, 0, &azCol, &azDflt, &abPK,
+      (pSession->bImplicitPK ? &bRowid : 0)
+  );
+  if( pSession->rc==SQLITE_OK ){
+    if( pTab->nCol>nCol || pTab->bRowid!=bRowid ){
+      pSession->rc = SQLITE_SCHEMA;
+    }else{
+      int ii;
+      int nOldCol = pTab->nCol;
+      for(ii=0; ii<nCol; ii++){
+        if( ii<pTab->nCol ){
+          if( pTab->abPK[ii]!=abPK[ii] ){
+            pSession->rc = SQLITE_SCHEMA;
+          }
+        }else if( abPK[ii] ){
+          pSession->rc = SQLITE_SCHEMA;
+        }
+      }
+
+      if( pSession->rc==SQLITE_OK ){
+        const char **a = pTab->azCol;
+        pTab->azCol = azCol;
+        pTab->nCol = nCol;
+        pTab->azDflt = azDflt;
+        pTab->abPK = abPK;
+        azCol = a;
+      }
+      if( pSession->bEnableSize ){
+        pSession->nMaxChangesetSize += (nCol - nOldCol);
+        pSession->nMaxChangesetSize += sessionVarintLen(nCol);
+        pSession->nMaxChangesetSize -= sessionVarintLen(nOldCol);
+      }
+    }
+  }
+
+  sqlite3_free((char*)azCol);
+  return pSession->rc;
+}
+
+/*
+** Session-change object (*pp) contains an old.* record with fewer than
+** nCol fields. This function updates it with the default values for
+** the missing fields.
+*/
+static void sessionUpdateOneChange(
+  sqlite3_session *pSession,      /* For memory accounting */
+  int *pRc,                       /* IN/OUT: Error code */
+  SessionChange **pp,             /* IN/OUT: Change object to update */
+  int nCol,                       /* Number of columns now in table */
+  sqlite3_stmt *pDflt             /* SELECT <default-values...> */
+){
+  SessionChange *pOld = *pp;
+
+  while( pOld->nRecordField<nCol ){
+    SessionChange *pNew = 0;
+    int nByte = 0;
+    int nIncr = 0;
+    int iField = pOld->nRecordField;
+    int eType = sqlite3_column_type(pDflt, iField);
+    switch( eType ){
+      case SQLITE_NULL:
+        nIncr = 1;
+        break;
+      case SQLITE_INTEGER:
+      case SQLITE_FLOAT:
+        nIncr = 9;
+        break;
+      default: {
+        int n = sqlite3_column_bytes(pDflt, iField);
+        nIncr = 1 + sessionVarintLen(n) + n;
+        assert( eType==SQLITE_TEXT || eType==SQLITE_BLOB );
+        break;
+      }
+    }
+
+    nByte = nIncr + (sizeof(SessionChange) + pOld->nRecord);
+    pNew = sessionMalloc64(pSession, nByte);
+    if( pNew==0 ){
+      *pRc = SQLITE_NOMEM;
+      return;
+    }else{
+      memcpy(pNew, pOld, sizeof(SessionChange));
+      pNew->aRecord = (u8*)&pNew[1];
+      memcpy(pNew->aRecord, pOld->aRecord, pOld->nRecord);
+      pNew->aRecord[pNew->nRecord++] = (u8)eType;
+      switch( eType ){
+        case SQLITE_INTEGER: {
+          i64 iVal = sqlite3_column_int64(pDflt, iField);
+          sessionPutI64(&pNew->aRecord[pNew->nRecord], iVal); 
+          pNew->nRecord += 8;
+          break;
+        }
+          
+        case SQLITE_FLOAT: {
+          double rVal = sqlite3_column_double(pDflt, iField);
+          i64 iVal = 0;
+          memcpy(&iVal, &rVal, sizeof(rVal));
+          sessionPutI64(&pNew->aRecord[pNew->nRecord], iVal); 
+          pNew->nRecord += 8;
+          break;
+        }
+
+        case SQLITE_TEXT: {
+          int n = sqlite3_column_bytes(pDflt, iField);
+          const char *z = (const char*)sqlite3_column_text(pDflt, iField);
+          pNew->nRecord += sessionVarintPut(&pNew->aRecord[pNew->nRecord], n); 
+          memcpy(&pNew->aRecord[pNew->nRecord], z, n);
+          pNew->nRecord += n;
+          break;
+        }
+
+        case SQLITE_BLOB: {
+          int n = sqlite3_column_bytes(pDflt, iField);
+          const u8 *z = (const u8*)sqlite3_column_blob(pDflt, iField);
+          pNew->nRecord += sessionVarintPut(&pNew->aRecord[pNew->nRecord], n); 
+          memcpy(&pNew->aRecord[pNew->nRecord], z, n);
+          pNew->nRecord += n;
+          break;
+        }
+
+        default:
+          assert( eType==SQLITE_NULL );
+          break;
+      }
+
+      sessionFree(pSession, pOld);
+      *pp = pOld = pNew;
+      pNew->nRecordField++;
+      pNew->nMaxSize += nIncr;
+      if( pSession ){
+        pSession->nMaxChangesetSize += nIncr;
+      }
+    }
+  }
+}
+
+/*
+** Ensure that there is room in the buffer to append nByte bytes of data.
+** If not, use sqlite3_realloc() to grow the buffer so that there is.
+**
+** If successful, return zero. Otherwise, if an OOM condition is encountered,
+** set *pRc to SQLITE_NOMEM and return non-zero.
+*/
+static int sessionBufferGrow(SessionBuffer *p, i64 nByte, int *pRc){
+#define SESSION_MAX_BUFFER_SZ (0x7FFFFF00 - 1) 
+  i64 nReq = p->nBuf + nByte;
+  if( *pRc==SQLITE_OK && nReq>p->nAlloc ){
+    u8 *aNew;
+    i64 nNew = p->nAlloc ? p->nAlloc : 128;
+
+    do {
+      nNew = nNew*2;
+    }while( nNew<nReq );
+
+    /* The value of SESSION_MAX_BUFFER_SZ is copied from the implementation
+    ** of sqlite3_realloc64(). Allocations greater than this size in bytes
+    ** always fail. It is used here to ensure that this routine can always
+    ** allocate up to this limit - instead of up to the largest power of
+    ** two smaller than the limit.  */
+    if( nNew>SESSION_MAX_BUFFER_SZ ){
+      nNew = SESSION_MAX_BUFFER_SZ;
+      if( nNew<nReq ){
+        *pRc = SQLITE_NOMEM;
+        return 1;
+      }
+    }
+
+    aNew = (u8 *)sqlite3_realloc64(p->aBuf, nNew);
+    if( 0==aNew ){
+      *pRc = SQLITE_NOMEM;
+    }else{
+      p->aBuf = aNew;
+      p->nAlloc = nNew;
+    }
+  }
+  return (*pRc!=SQLITE_OK);
+}
+
+
+/*
+** This function is a no-op if *pRc is other than SQLITE_OK when it is 
+** called. Otherwise, append a string to the buffer. All bytes in the string
+** up to (but not including) the nul-terminator are written to the buffer.
+**
+** If an OOM condition is encountered, set *pRc to SQLITE_NOMEM before
+** returning.
+*/
+static void sessionAppendStr(
+  SessionBuffer *p, 
+  const char *zStr, 
+  int *pRc
+){
+  int nStr = sqlite3Strlen30(zStr);
+  if( 0==sessionBufferGrow(p, nStr+1, pRc) ){
+    memcpy(&p->aBuf[p->nBuf], zStr, nStr);
+    p->nBuf += nStr;
+    p->aBuf[p->nBuf] = 0x00;
+  }
+}
+
+/*
+** Format a string using printf() style formatting and then append it to the
+** buffer using sessionAppendString().
+*/
+static void sessionAppendPrintf(
+  SessionBuffer *p,               /* Buffer to append to */
+  int *pRc, 
+  const char *zFmt,
+  ...
+){
+  if( *pRc==SQLITE_OK ){
+    char *zApp = 0;
+    va_list ap;
+    va_start(ap, zFmt);
+    zApp = sqlite3_vmprintf(zFmt, ap);
+    if( zApp==0 ){
+      *pRc = SQLITE_NOMEM;
+    }else{
+      sessionAppendStr(p, zApp, pRc);
+    }
+    va_end(ap);
+    sqlite3_free(zApp);
+  }
+}
+
+/*
+** Prepare a statement against database handle db that SELECTs a single
+** row containing the default values for each column in table pTab. For
+** example, if pTab is declared as:
+**
+**   CREATE TABLE pTab(a PRIMARY KEY, b DEFAULT 123, c DEFAULT 'abcd');
+**
+** Then this function prepares and returns the SQL statement:
+**
+**   SELECT NULL, 123, 'abcd';
+*/
+static int sessionPrepareDfltStmt(
+  sqlite3 *db,                    /* Database handle */
+  SessionTable *pTab,             /* Table to prepare statement for */
+  sqlite3_stmt **ppStmt           /* OUT: Statement handle */
+){
+  SessionBuffer sql = {0,0,0};
+  int rc = SQLITE_OK;
+  const char *zSep = " ";
+  int ii = 0;
+
+  *ppStmt = 0;
+  sessionAppendPrintf(&sql, &rc, "SELECT");
+  for(ii=0; ii<pTab->nCol; ii++){
+    const char *zDflt = pTab->azDflt[ii] ? pTab->azDflt[ii] : "NULL";
+    sessionAppendPrintf(&sql, &rc, "%s%s", zSep, zDflt);
+    zSep = ", ";
+  }
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_prepare_v2(db, (const char*)sql.aBuf, -1, ppStmt, 0);
+  }
+  sqlite3_free(sql.aBuf);
+
+  return rc;
+}
+
+/*
+** Table pTab has one or more existing change-records with old.* records
+** with fewer than pTab->nCol columns. This function updates all such 
+** change-records with the default values for the missing columns.
+*/
+static int sessionUpdateChanges(sqlite3_session *pSession, SessionTable *pTab){
+  sqlite3_stmt *pStmt = 0;
+  int rc = pSession->rc;
+
+  rc = sessionPrepareDfltStmt(pSession->db, pTab, &pStmt);
+  if( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pStmt) ){
+    int ii = 0;
+    SessionChange **pp = 0;
+    for(ii=0; ii<pTab->nChange; ii++){
+      for(pp=&pTab->apChange[ii]; *pp; pp=&((*pp)->pNext)){
+        if( (*pp)->nRecordField!=pTab->nCol ){
+          sessionUpdateOneChange(pSession, &rc, pp, pTab->nCol, pStmt);
+        }
+      }
+    }
+  }
+
+  pSession->rc = rc;
+  rc = sqlite3_finalize(pStmt);
+  if( pSession->rc==SQLITE_OK ) pSession->rc = rc;
+  return pSession->rc;
+}
+
+/*
+** Versions of the four methods in object SessionHook for use with the
+** sqlite_stat1 table. The purpose of this is to substitute a zero-length
+** blob each time a NULL value is read from the "idx" column of the
+** sqlite_stat1 table.
+*/
+typedef struct SessionStat1Ctx SessionStat1Ctx;
+struct SessionStat1Ctx {
+  SessionHook hook;
+  sqlite3_session *pSession;
+};
+static int sessionStat1Old(void *pCtx, int iCol, sqlite3_value **ppVal){
+  SessionStat1Ctx *p = (SessionStat1Ctx*)pCtx;
+  sqlite3_value *pVal = 0;
+  int rc = p->hook.xOld(p->hook.pCtx, iCol, &pVal);
+  if( rc==SQLITE_OK && iCol==1 && sqlite3_value_type(pVal)==SQLITE_NULL ){
+    pVal = p->pSession->pZeroBlob;
+  }
+  *ppVal = pVal;
+  return rc;
+}
+static int sessionStat1New(void *pCtx, int iCol, sqlite3_value **ppVal){
+  SessionStat1Ctx *p = (SessionStat1Ctx*)pCtx;
+  sqlite3_value *pVal = 0;
+  int rc = p->hook.xNew(p->hook.pCtx, iCol, &pVal);
+  if( rc==SQLITE_OK && iCol==1 && sqlite3_value_type(pVal)==SQLITE_NULL ){
+    pVal = p->pSession->pZeroBlob;
+  }
+  *ppVal = pVal;
+  return rc;
+}
+static int sessionStat1Count(void *pCtx){
+  SessionStat1Ctx *p = (SessionStat1Ctx*)pCtx;
+  return p->hook.xCount(p->hook.pCtx);
+}
+static int sessionStat1Depth(void *pCtx){
+  SessionStat1Ctx *p = (SessionStat1Ctx*)pCtx;
+  return p->hook.xDepth(p->hook.pCtx);
+}
+
+static int sessionUpdateMaxSize(
+  int op,
+  sqlite3_session *pSession,      /* Session object pTab is attached to */
+  SessionTable *pTab,             /* Table that change applies to */
+  SessionChange *pC               /* Update pC->nMaxSize */
+){
+  i64 nNew = 2;
+  if( pC->op==SQLITE_INSERT ){
+    if( pTab->bRowid ) nNew += 9;
+    if( op!=SQLITE_DELETE ){
+      int ii;
+      for(ii=0; ii<pTab->nCol; ii++){
+        sqlite3_value *p = 0;
+        pSession->hook.xNew(pSession->hook.pCtx, ii, &p);
+        sessionSerializeValue(0, p, &nNew);
+      }
+    }
+  }else if( op==SQLITE_DELETE ){
+    nNew += pC->nRecord;
+    if( sqlite3_preupdate_blobwrite(pSession->db)>=0 ){
+      nNew += pC->nRecord;
+    }
+  }else{
+    int ii;
+    u8 *pCsr = pC->aRecord;
+    if( pTab->bRowid ){
+      nNew += 9 + 1;
+      pCsr += 9;
+    }
+    for(ii=pTab->bRowid; ii<pTab->nCol; ii++){
+      int bChanged = 1;
+      int nOld = 0;
+      int eType;
+      sqlite3_value *p = 0;
+      pSession->hook.xNew(pSession->hook.pCtx, ii-pTab->bRowid, &p);
+      if( p==0 ){
+        return SQLITE_NOMEM;
+      }
+
+      eType = *pCsr++;
+      switch( eType ){
+        case SQLITE_NULL:
+          bChanged = sqlite3_value_type(p)!=SQLITE_NULL;
+          break;
+
+        case SQLITE_FLOAT:
+        case SQLITE_INTEGER: {
+          if( eType==sqlite3_value_type(p) ){
+            sqlite3_int64 iVal = sessionGetI64(pCsr);
+            if( eType==SQLITE_INTEGER ){
+              bChanged = (iVal!=sqlite3_value_int64(p));
+            }else{
+              double dVal;
+              memcpy(&dVal, &iVal, 8);
+              bChanged = (dVal!=sqlite3_value_double(p));
+            }
+          }
+          nOld = 8;
+          pCsr += 8;
+          break;
+        }
+
+        default: {
+          int nByte;
+          nOld = sessionVarintGet(pCsr, &nByte);
+          pCsr += nOld;
+          nOld += nByte;
+          assert( eType==SQLITE_TEXT || eType==SQLITE_BLOB );
+          if( eType==sqlite3_value_type(p) 
+           && nByte==sqlite3_value_bytes(p)
+           && (nByte==0 || 0==memcmp(pCsr, sqlite3_value_blob(p), nByte))
+          ){
+            bChanged = 0;
+          }
+          pCsr += nByte;
+          break;
+        }
+      }
+
+      if( bChanged && pTab->abPK[ii] ){
+        nNew = pC->nRecord + 2;
+        break;
+      }
+
+      if( bChanged ){
+        nNew += 1 + nOld;
+        sessionSerializeValue(0, p, &nNew);
+      }else if( pTab->abPK[ii] ){
+        nNew += 2 + nOld;
+      }else{
+        nNew += 2;
+      }
+    }
+  }
+
+  if( nNew>pC->nMaxSize ){
+    int nIncr = nNew - pC->nMaxSize;
+    pC->nMaxSize = nNew;
+    pSession->nMaxChangesetSize += nIncr;
+  }
+  return SQLITE_OK;
+}
+
+/*
+** This function is only called from with a pre-update-hook reporting a 
+** change on table pTab (attached to session pSession). The type of change
+** (UPDATE, INSERT, DELETE) is specified by the first argument.
+**
+** Unless one is already present or an error occurs, an entry is added
+** to the changed-rows hash table associated with table pTab.
+*/
+static void sessionPreupdateOneChange(
+  int op,                         /* One of SQLITE_UPDATE, INSERT, DELETE */
+  i64 iRowid,
+  sqlite3_session *pSession,      /* Session object pTab is attached to */
+  SessionTable *pTab              /* Table that change applies to */
+){
+  int iHash; 
+  int bNull = 0; 
+  int rc = SQLITE_OK;
+  int nExpect = 0;
+  SessionStat1Ctx stat1 = {{0,0,0,0,0},0};
+
+  if( pSession->rc ) return;
+
+  /* Load table details if required */
+  if( sessionInitTable(pSession, pTab, pSession->db, pSession->zDb) ) return;
+
+  /* Check the number of columns in this xPreUpdate call matches the 
+  ** number of columns in the table.  */
+  nExpect = pSession->hook.xCount(pSession->hook.pCtx);
+  if( (pTab->nCol-pTab->bRowid)<nExpect ){
+    if( sessionReinitTable(pSession, pTab) ) return;
+    if( sessionUpdateChanges(pSession, pTab) ) return;
+  }
+  if( (pTab->nCol-pTab->bRowid)!=nExpect ){
+    pSession->rc = SQLITE_SCHEMA;
+    return;
+  }
+
+  /* Grow the hash table if required */
+  if( sessionGrowHash(pSession, 0, pTab) ){
+    pSession->rc = SQLITE_NOMEM;
+    return;
+  }
+
+  if( pTab->bStat1 ){
+    stat1.hook = pSession->hook;
+    stat1.pSession = pSession;
+    pSession->hook.pCtx = (void*)&stat1;
+    pSession->hook.xNew = sessionStat1New;
+    pSession->hook.xOld = sessionStat1Old;
+    pSession->hook.xCount = sessionStat1Count;
+    pSession->hook.xDepth = sessionStat1Depth;
+    if( pSession->pZeroBlob==0 ){
+      sqlite3_value *p = sqlite3ValueNew(0);
+      if( p==0 ){
+        rc = SQLITE_NOMEM;
+        goto error_out;
+      }
+      sqlite3ValueSetStr(p, 0, "", 0, SQLITE_STATIC);
+      pSession->pZeroBlob = p;
+    }
+  }
+
+  /* Calculate the hash-key for this change. If the primary key of the row
+  ** includes a NULL value, exit early. Such changes are ignored by the
+  ** session module. */
+  rc = sessionPreupdateHash(
+      pSession, iRowid, pTab, op==SQLITE_INSERT, &iHash, &bNull
+  );
+  if( rc!=SQLITE_OK ) goto error_out;
+
+  if( bNull==0 ){
+    /* Search the hash table for an existing record for this row. */
+    SessionChange *pC;
+    for(pC=pTab->apChange[iHash]; pC; pC=pC->pNext){
+      if( sessionPreupdateEqual(pSession, iRowid, pTab, pC, op) ) break;
+    }
+
+    if( pC==0 ){
+      /* Create a new change object containing all the old values (if
+      ** this is an SQLITE_UPDATE or SQLITE_DELETE), or just the PK
+      ** values (if this is an INSERT). */
+      sqlite3_int64 nByte;    /* Number of bytes to allocate */
+      int i;                  /* Used to iterate through columns */
+  
+      assert( rc==SQLITE_OK );
+      pTab->nEntry++;
+  
+      /* Figure out how large an allocation is required */
+      nByte = sizeof(SessionChange);
+      for(i=0; i<(pTab->nCol-pTab->bRowid); i++){
+        sqlite3_value *p = 0;
+        if( op!=SQLITE_INSERT ){
+          /* This may fail if the column has a non-NULL default and was added 
+          ** using ALTER TABLE ADD COLUMN after this record was created. */
+          rc = pSession->hook.xOld(pSession->hook.pCtx, i, &p);
+        }else if( pTab->abPK[i] ){
+          TESTONLY(int trc = ) pSession->hook.xNew(pSession->hook.pCtx, i, &p);
+          assert( trc==SQLITE_OK );
+        }
+
+        if( rc==SQLITE_OK ){
+          /* This may fail if SQLite value p contains a utf-16 string that must
+          ** be converted to utf-8 and an OOM error occurs while doing so. */
+          rc = sessionSerializeValue(0, p, &nByte);
+        }
+        if( rc!=SQLITE_OK ) goto error_out;
+      }
+      if( pTab->bRowid ){
+        nByte += 9;               /* Size of rowid field - an integer */
+      }
+  
+      /* Allocate the change object */
+      pC = (SessionChange*)sessionMalloc64(pSession, nByte);
+      if( !pC ){
+        rc = SQLITE_NOMEM;
+        goto error_out;
+      }else{
+        memset(pC, 0, sizeof(SessionChange));
+        pC->aRecord = (u8 *)&pC[1];
+      }
+  
+      /* Populate the change object. None of the preupdate_old(),
+      ** preupdate_new() or SerializeValue() calls below may fail as all
+      ** required values and encodings have already been cached in memory.
+      ** It is not possible for an OOM to occur in this block. */
+      nByte = 0;
+      if( pTab->bRowid ){
+        pC->aRecord[0] = SQLITE_INTEGER;
+        sessionPutI64(&pC->aRecord[1], iRowid);
+        nByte = 9;
+      }
+      for(i=0; i<(pTab->nCol-pTab->bRowid); i++){
+        sqlite3_value *p = 0;
+        if( op!=SQLITE_INSERT ){
+          pSession->hook.xOld(pSession->hook.pCtx, i, &p);
+        }else if( pTab->abPK[i] ){
+          pSession->hook.xNew(pSession->hook.pCtx, i, &p);
+        }
+        sessionSerializeValue(&pC->aRecord[nByte], p, &nByte);
+      }
+
+      /* Add the change to the hash-table */
+      if( pSession->bIndirect || pSession->hook.xDepth(pSession->hook.pCtx) ){
+        pC->bIndirect = 1;
+      }
+      pC->nRecordField = pTab->nCol;
+      pC->nRecord = nByte;
+      pC->op = op;
+      pC->pNext = pTab->apChange[iHash];
+      pTab->apChange[iHash] = pC;
+
+    }else if( pC->bIndirect ){
+      /* If the existing change is considered "indirect", but this current
+      ** change is "direct", mark the change object as direct. */
+      if( pSession->hook.xDepth(pSession->hook.pCtx)==0 
+       && pSession->bIndirect==0 
+      ){
+        pC->bIndirect = 0;
+      }
+    }
+
+    assert( rc==SQLITE_OK );
+    if( pSession->bEnableSize ){
+      rc = sessionUpdateMaxSize(op, pSession, pTab, pC);
+    }
+  }
+
+
+  /* If an error has occurred, mark the session object as failed. */
+ error_out:
+  if( pTab->bStat1 ){
+    pSession->hook = stat1.hook;
+  }
+  if( rc!=SQLITE_OK ){
+    pSession->rc = rc;
+  }
+}
+
+static int sessionFindTable(
+  sqlite3_session *pSession, 
+  const char *zName,
+  SessionTable **ppTab
+){
+  int rc = SQLITE_OK;
+  int nName = sqlite3Strlen30(zName);
+  SessionTable *pRet;
+
+  /* Search for an existing table */
+  for(pRet=pSession->pTable; pRet; pRet=pRet->pNext){
+    if( 0==sqlite3_strnicmp(pRet->zName, zName, nName+1) ) break;
+  }
+
+  if( pRet==0 && pSession->bAutoAttach ){
+    /* If there is a table-filter configured, invoke it. If it returns 0,
+    ** do not automatically add the new table. */
+    if( pSession->xTableFilter==0
+     || pSession->xTableFilter(pSession->pFilterCtx, zName) 
+    ){
+      rc = sqlite3session_attach(pSession, zName);
+      if( rc==SQLITE_OK ){
+        pRet = pSession->pTable;
+        while( ALWAYS(pRet) && pRet->pNext ){
+          pRet = pRet->pNext;
+        }
+        assert( pRet!=0 );
+        assert( 0==sqlite3_strnicmp(pRet->zName, zName, nName+1) );
+      }
+    }
+  }
+
+  assert( rc==SQLITE_OK || pRet==0 );
+  *ppTab = pRet;
+  return rc;
+}
+
+/*
+** The 'pre-update' hook registered by this module with SQLite databases.
+*/
+static void xPreUpdate(
+  void *pCtx,                     /* Copy of third arg to preupdate_hook() */
+  sqlite3 *db,                    /* Database handle */
+  int op,                         /* SQLITE_UPDATE, DELETE or INSERT */
+  char const *zDb,                /* Database name */
+  char const *zName,              /* Table name */
+  sqlite3_int64 iKey1,            /* Rowid of row about to be deleted/updated */
+  sqlite3_int64 iKey2             /* New rowid value (for a rowid UPDATE) */
+){
+  sqlite3_session *pSession;
+  int nDb = sqlite3Strlen30(zDb);
+
+  assert( sqlite3_mutex_held(db->mutex) );
+  (void)iKey1;
+  (void)iKey2;
+
+  for(pSession=(sqlite3_session *)pCtx; pSession; pSession=pSession->pNext){
+    SessionTable *pTab;
+
+    /* If this session is attached to a different database ("main", "temp" 
+    ** etc.), or if it is not currently enabled, there is nothing to do. Skip 
+    ** to the next session object attached to this database. */
+    if( pSession->bEnable==0 ) continue;
+    if( pSession->rc ) continue;
+    if( sqlite3_strnicmp(zDb, pSession->zDb, nDb+1) ) continue;
+
+    pSession->rc = sessionFindTable(pSession, zName, &pTab);
+    if( pTab ){
+      assert( pSession->rc==SQLITE_OK );
+      assert( op==SQLITE_UPDATE || iKey1==iKey2 );
+      sessionPreupdateOneChange(op, iKey1, pSession, pTab);
+      if( op==SQLITE_UPDATE ){
+        sessionPreupdateOneChange(SQLITE_INSERT, iKey2, pSession, pTab);
+      }
+    }
+  }
+}
+
+/*
+** The pre-update hook implementations.
+*/
+static int sessionPreupdateOld(void *pCtx, int iVal, sqlite3_value **ppVal){
+  return sqlite3_preupdate_old((sqlite3*)pCtx, iVal, ppVal);
+}
+static int sessionPreupdateNew(void *pCtx, int iVal, sqlite3_value **ppVal){
+  return sqlite3_preupdate_new((sqlite3*)pCtx, iVal, ppVal);
+}
+static int sessionPreupdateCount(void *pCtx){
+  return sqlite3_preupdate_count((sqlite3*)pCtx);
+}
+static int sessionPreupdateDepth(void *pCtx){
+  return sqlite3_preupdate_depth((sqlite3*)pCtx);
+}
+
+/*
+** Install the pre-update hooks on the session object passed as the only
+** argument.
+*/
+static void sessionPreupdateHooks(
+  sqlite3_session *pSession
+){
+  pSession->hook.pCtx = (void*)pSession->db;
+  pSession->hook.xOld = sessionPreupdateOld;
+  pSession->hook.xNew = sessionPreupdateNew;
+  pSession->hook.xCount = sessionPreupdateCount;
+  pSession->hook.xDepth = sessionPreupdateDepth;
+}
+
+typedef struct SessionDiffCtx SessionDiffCtx;
+struct SessionDiffCtx {
+  sqlite3_stmt *pStmt;
+  int bRowid;
+  int nOldOff;
+};
+
+/*
+** The diff hook implementations.
+*/
+static int sessionDiffOld(void *pCtx, int iVal, sqlite3_value **ppVal){
+  SessionDiffCtx *p = (SessionDiffCtx*)pCtx;
+  *ppVal = sqlite3_column_value(p->pStmt, iVal+p->nOldOff+p->bRowid);
+  return SQLITE_OK;
+}
+static int sessionDiffNew(void *pCtx, int iVal, sqlite3_value **ppVal){
+  SessionDiffCtx *p = (SessionDiffCtx*)pCtx;
+  *ppVal = sqlite3_column_value(p->pStmt, iVal+p->bRowid);
+   return SQLITE_OK;
+}
+static int sessionDiffCount(void *pCtx){
+  SessionDiffCtx *p = (SessionDiffCtx*)pCtx;
+  return (p->nOldOff ? p->nOldOff : sqlite3_column_count(p->pStmt)) - p->bRowid;
+}
+static int sessionDiffDepth(void *pCtx){
+  (void)pCtx;
+  return 0;
+}
+
+/*
+** Install the diff hooks on the session object passed as the only
+** argument.
+*/
+static void sessionDiffHooks(
+  sqlite3_session *pSession,
+  SessionDiffCtx *pDiffCtx
+){
+  pSession->hook.pCtx = (void*)pDiffCtx;
+  pSession->hook.xOld = sessionDiffOld;
+  pSession->hook.xNew = sessionDiffNew;
+  pSession->hook.xCount = sessionDiffCount;
+  pSession->hook.xDepth = sessionDiffDepth;
+}
+
+static char *sessionExprComparePK(
+  int nCol,
+  const char *zDb1, const char *zDb2, 
+  const char *zTab,
+  const char **azCol, u8 *abPK
+){
+  int i;
+  const char *zSep = "";
+  char *zRet = 0;
+
+  for(i=0; i<nCol; i++){
+    if( abPK[i] ){
+      zRet = sqlite3_mprintf("%z%s\"%w\".\"%w\".\"%w\"=\"%w\".\"%w\".\"%w\"",
+          zRet, zSep, zDb1, zTab, azCol[i], zDb2, zTab, azCol[i]
+      );
+      zSep = " AND ";
+      if( zRet==0 ) break;
+    }
+  }
+
+  return zRet;
+}
+
+static char *sessionExprCompareOther(
+  int nCol,
+  const char *zDb1, const char *zDb2, 
+  const char *zTab,
+  const char **azCol, u8 *abPK
+){
+  int i;
+  const char *zSep = "";
+  char *zRet = 0;
+  int bHave = 0;
+
+  for(i=0; i<nCol; i++){
+    if( abPK[i]==0 ){
+      bHave = 1;
+      zRet = sqlite3_mprintf(
+          "%z%s\"%w\".\"%w\".\"%w\" IS NOT \"%w\".\"%w\".\"%w\"",
+          zRet, zSep, zDb1, zTab, azCol[i], zDb2, zTab, azCol[i]
+      );
+      zSep = " OR ";
+      if( zRet==0 ) break;
+    }
+  }
+
+  if( bHave==0 ){
+    assert( zRet==0 );
+    zRet = sqlite3_mprintf("0");
+  }
+
+  return zRet;
+}
+
+static char *sessionSelectFindNew(
+  const char *zDb1,      /* Pick rows in this db only */
+  const char *zDb2,      /* But not in this one */
+  int bRowid,
+  const char *zTbl,      /* Table name */
+  const char *zExpr
+){
+  const char *zSel = (bRowid ? SESSIONS_ROWID ", *" : "*");
+  char *zRet = sqlite3_mprintf(
+      "SELECT %s FROM \"%w\".\"%w\" WHERE NOT EXISTS ("
+      "  SELECT 1 FROM \"%w\".\"%w\" WHERE %s"
+      ")",
+      zSel, zDb1, zTbl, zDb2, zTbl, zExpr
+  );
+  return zRet;
+}
+
+static int sessionDiffFindNew(
+  int op,
+  sqlite3_session *pSession,
+  SessionTable *pTab,
+  const char *zDb1,
+  const char *zDb2,
+  char *zExpr
+){
+  int rc = SQLITE_OK;
+  char *zStmt = sessionSelectFindNew(
+      zDb1, zDb2, pTab->bRowid, pTab->zName, zExpr
+  );
+
+  if( zStmt==0 ){
+    rc = SQLITE_NOMEM;
+  }else{
+    sqlite3_stmt *pStmt;
+    rc = sqlite3_prepare(pSession->db, zStmt, -1, &pStmt, 0);
+    if( rc==SQLITE_OK ){
+      SessionDiffCtx *pDiffCtx = (SessionDiffCtx*)pSession->hook.pCtx;
+      pDiffCtx->pStmt = pStmt;
+      pDiffCtx->nOldOff = 0;
+      pDiffCtx->bRowid = pTab->bRowid;
+      while( SQLITE_ROW==sqlite3_step(pStmt) ){
+        i64 iRowid = (pTab->bRowid ? sqlite3_column_int64(pStmt, 0) : 0);
+        sessionPreupdateOneChange(op, iRowid, pSession, pTab);
+      }
+      rc = sqlite3_finalize(pStmt);
+    }
+    sqlite3_free(zStmt);
+  }
+
+  return rc;
+}
+
+/*
+** Return a comma-separated list of the fully-qualified (with both database
+** and table name) column names from table pTab. e.g.
+**
+**    "main"."t1"."a", "main"."t1"."b", "main"."t1"."c"
+*/
+static char *sessionAllCols(
+  const char *zDb,
+  SessionTable *pTab
+){
+  int ii;
+  char *zRet = 0;
+  for(ii=0; ii<pTab->nCol; ii++){
+    zRet = sqlite3_mprintf("%z%s\"%w\".\"%w\".\"%w\"",
+        zRet, (zRet ? ", " : ""), zDb, pTab->zName, pTab->azCol[ii] 
+    );
+    if( !zRet ) break;
+  }
+  return zRet;
+}
+
+static int sessionDiffFindModified(
+  sqlite3_session *pSession, 
+  SessionTable *pTab, 
+  const char *zFrom, 
+  const char *zExpr
+){
+  int rc = SQLITE_OK;
+
+  char *zExpr2 = sessionExprCompareOther(pTab->nCol,
+      pSession->zDb, zFrom, pTab->zName, pTab->azCol, pTab->abPK
+  );
+  if( zExpr2==0 ){
+    rc = SQLITE_NOMEM;
+  }else{
+    char *z1 = sessionAllCols(pSession->zDb, pTab);
+    char *z2 = sessionAllCols(zFrom, pTab);
+    char *zStmt = sqlite3_mprintf(
+        "SELECT %s,%s FROM \"%w\".\"%w\", \"%w\".\"%w\" WHERE %s AND (%z)",
+        z1, z2, pSession->zDb, pTab->zName, zFrom, pTab->zName, zExpr, zExpr2
+    );
+    if( zStmt==0 || z1==0 || z2==0 ){
+      rc = SQLITE_NOMEM;
+    }else{
+      sqlite3_stmt *pStmt;
+      rc = sqlite3_prepare(pSession->db, zStmt, -1, &pStmt, 0);
+
+      if( rc==SQLITE_OK ){
+        SessionDiffCtx *pDiffCtx = (SessionDiffCtx*)pSession->hook.pCtx;
+        pDiffCtx->pStmt = pStmt;
+        pDiffCtx->nOldOff = pTab->nCol;
+        while( SQLITE_ROW==sqlite3_step(pStmt) ){
+          i64 iRowid = (pTab->bRowid ? sqlite3_column_int64(pStmt, 0) : 0);
+          sessionPreupdateOneChange(SQLITE_UPDATE, iRowid, pSession, pTab);
+        }
+        rc = sqlite3_finalize(pStmt);
+      }
+    }
+    sqlite3_free(zStmt);
+    sqlite3_free(z1);
+    sqlite3_free(z2);
+  }
+
+  return rc;
+}
+
+int sqlite3session_diff(
+  sqlite3_session *pSession,
+  const char *zFrom,
+  const char *zTbl,
+  char **pzErrMsg
+){
+  const char *zDb = pSession->zDb;
+  int rc = pSession->rc;
+  SessionDiffCtx d;
+
+  memset(&d, 0, sizeof(d));
+  sessionDiffHooks(pSession, &d);
+
+  sqlite3_mutex_enter(sqlite3_db_mutex(pSession->db));
+  if( pzErrMsg ) *pzErrMsg = 0;
+  if( rc==SQLITE_OK ){
+    char *zExpr = 0;
+    sqlite3 *db = pSession->db;
+    SessionTable *pTo;            /* Table zTbl */
+
+    /* Locate and if necessary initialize the target table object */
+    rc = sessionFindTable(pSession, zTbl, &pTo);
+    if( pTo==0 ) goto diff_out;
+    if( sessionInitTable(pSession, pTo, pSession->db, pSession->zDb) ){
+      rc = pSession->rc;
+      goto diff_out;
+    }
+
+    /* Check the table schemas match */
+    if( rc==SQLITE_OK ){
+      int bHasPk = 0;
+      int bMismatch = 0;
+      int nCol;                   /* Columns in zFrom.zTbl */
+      int bRowid = 0;
+      u8 *abPK;
+      const char **azCol = 0;
+      rc = sessionTableInfo(0, db, zFrom, zTbl, &nCol, 0, &azCol, 0, &abPK, 
+          pSession->bImplicitPK ? &bRowid : 0
+      );
+      if( rc==SQLITE_OK ){
+        if( pTo->nCol!=nCol ){
+          bMismatch = 1;
+        }else{
+          int i;
+          for(i=0; i<nCol; i++){
+            if( pTo->abPK[i]!=abPK[i] ) bMismatch = 1;
+            if( sqlite3_stricmp(azCol[i], pTo->azCol[i]) ) bMismatch = 1;
+            if( abPK[i] ) bHasPk = 1;
+          }
+        }
+      }
+      sqlite3_free((char*)azCol);
+      if( bMismatch ){
+        if( pzErrMsg ){
+          *pzErrMsg = sqlite3_mprintf("table schemas do not match");
+        }
+        rc = SQLITE_SCHEMA;
+      }
+      if( bHasPk==0 ){
+        /* Ignore tables with no primary keys */
+        goto diff_out;
+      }
+    }
+
+    if( rc==SQLITE_OK ){
+      zExpr = sessionExprComparePK(pTo->nCol, 
+          zDb, zFrom, pTo->zName, pTo->azCol, pTo->abPK
+      );
+    }
+
+    /* Find new rows */
+    if( rc==SQLITE_OK ){
+      rc = sessionDiffFindNew(SQLITE_INSERT, pSession, pTo, zDb, zFrom, zExpr);
+    }
+
+    /* Find old rows */
+    if( rc==SQLITE_OK ){
+      rc = sessionDiffFindNew(SQLITE_DELETE, pSession, pTo, zFrom, zDb, zExpr);
+    }
+
+    /* Find modified rows */
+    if( rc==SQLITE_OK ){
+      rc = sessionDiffFindModified(pSession, pTo, zFrom, zExpr);
+    }
+
+    sqlite3_free(zExpr);
+  }
+
+ diff_out:
+  sessionPreupdateHooks(pSession);
+  sqlite3_mutex_leave(sqlite3_db_mutex(pSession->db));
+  return rc;
+}
+
+/*
+** Create a session object. This session object will record changes to
+** database zDb attached to connection db.
+*/
+int sqlite3session_create(
+  sqlite3 *db,                    /* Database handle */
+  const char *zDb,                /* Name of db (e.g. "main") */
+  sqlite3_session **ppSession     /* OUT: New session object */
+){
+  sqlite3_session *pNew;          /* Newly allocated session object */
+  sqlite3_session *pOld;          /* Session object already attached to db */
+  int nDb = sqlite3Strlen30(zDb); /* Length of zDb in bytes */
+
+  /* Zero the output value in case an error occurs. */
+  *ppSession = 0;
+
+  /* Allocate and populate the new session object. */
+  pNew = (sqlite3_session *)sqlite3_malloc64(sizeof(sqlite3_session) + nDb + 1);
+  if( !pNew ) return SQLITE_NOMEM;
+  memset(pNew, 0, sizeof(sqlite3_session));
+  pNew->db = db;
+  pNew->zDb = (char *)&pNew[1];
+  pNew->bEnable = 1;
+  memcpy(pNew->zDb, zDb, nDb+1);
+  sessionPreupdateHooks(pNew);
+
+  /* Add the new session object to the linked list of session objects 
+  ** attached to database handle $db. Do this under the cover of the db
+  ** handle mutex.  */
+  sqlite3_mutex_enter(sqlite3_db_mutex(db));
+  pOld = (sqlite3_session*)sqlite3_preupdate_hook(db, xPreUpdate, (void*)pNew);
+  pNew->pNext = pOld;
+  sqlite3_mutex_leave(sqlite3_db_mutex(db));
+
+  *ppSession = pNew;
+  return SQLITE_OK;
+}
+
+/*
+** Free the list of table objects passed as the first argument. The contents
+** of the changed-rows hash tables are also deleted.
+*/
+static void sessionDeleteTable(sqlite3_session *pSession, SessionTable *pList){
+  SessionTable *pNext;
+  SessionTable *pTab;
+
+  for(pTab=pList; pTab; pTab=pNext){
+    int i;
+    pNext = pTab->pNext;
+    for(i=0; i<pTab->nChange; i++){
+      SessionChange *p;
+      SessionChange *pNextChange;
+      for(p=pTab->apChange[i]; p; p=pNextChange){
+        pNextChange = p->pNext;
+        sessionFree(pSession, p);
+      }
+    }
+    sqlite3_finalize(pTab->pDfltStmt);
+    sessionFree(pSession, (char*)pTab->azCol);  /* cast works around VC++ bug */
+    sessionFree(pSession, pTab->apChange);
+    sessionFree(pSession, pTab);
+  }
+}
+
+/*
+** Delete a session object previously allocated using sqlite3session_create().
+*/
+void sqlite3session_delete(sqlite3_session *pSession){
+  sqlite3 *db = pSession->db;
+  sqlite3_session *pHead;
+  sqlite3_session **pp;
+
+  /* Unlink the session from the linked list of sessions attached to the
+  ** database handle. Hold the db mutex while doing so.  */
+  sqlite3_mutex_enter(sqlite3_db_mutex(db));
+  pHead = (sqlite3_session*)sqlite3_preupdate_hook(db, 0, 0);
+  for(pp=&pHead; ALWAYS((*pp)!=0); pp=&((*pp)->pNext)){
+    if( (*pp)==pSession ){
+      *pp = (*pp)->pNext;
+      if( pHead ) sqlite3_preupdate_hook(db, xPreUpdate, (void*)pHead);
+      break;
+    }
+  }
+  sqlite3_mutex_leave(sqlite3_db_mutex(db));
+  sqlite3ValueFree(pSession->pZeroBlob);
+
+  /* Delete all attached table objects. And the contents of their 
+  ** associated hash-tables. */
+  sessionDeleteTable(pSession, pSession->pTable);
+
+  /* Free the session object. */
+  sqlite3_free(pSession);
+}
+
+/*
+** Set a table filter on a Session Object.
+*/
+void sqlite3session_table_filter(
+  sqlite3_session *pSession, 
+  int(*xFilter)(void*, const char*),
+  void *pCtx                      /* First argument passed to xFilter */
+){
+  pSession->bAutoAttach = 1;
+  pSession->pFilterCtx = pCtx;
+  pSession->xTableFilter = xFilter;
+}
+
+/*
+** Attach a table to a session. All subsequent changes made to the table
+** while the session object is enabled will be recorded.
+**
+** Only tables that have a PRIMARY KEY defined may be attached. It does
+** not matter if the PRIMARY KEY is an "INTEGER PRIMARY KEY" (rowid alias)
+** or not.
+*/
+int sqlite3session_attach(
+  sqlite3_session *pSession,      /* Session object */
+  const char *zName               /* Table name */
+){
+  int rc = SQLITE_OK;
+  sqlite3_mutex_enter(sqlite3_db_mutex(pSession->db));
+
+  if( !zName ){
+    pSession->bAutoAttach = 1;
+  }else{
+    SessionTable *pTab;           /* New table object (if required) */
+    int nName;                    /* Number of bytes in string zName */
+
+    /* First search for an existing entry. If one is found, this call is
+    ** a no-op. Return early. */
+    nName = sqlite3Strlen30(zName);
+    for(pTab=pSession->pTable; pTab; pTab=pTab->pNext){
+      if( 0==sqlite3_strnicmp(pTab->zName, zName, nName+1) ) break;
+    }
+
+    if( !pTab ){
+      /* Allocate new SessionTable object. */
+      int nByte = sizeof(SessionTable) + nName + 1;
+      pTab = (SessionTable*)sessionMalloc64(pSession, nByte);
+      if( !pTab ){
+        rc = SQLITE_NOMEM;
+      }else{
+        /* Populate the new SessionTable object and link it into the list.
+        ** The new object must be linked onto the end of the list, not 
+        ** simply added to the start of it in order to ensure that tables
+        ** appear in the correct order when a changeset or patchset is
+        ** eventually generated. */
+        SessionTable **ppTab;
+        memset(pTab, 0, sizeof(SessionTable));
+        pTab->zName = (char *)&pTab[1];
+        memcpy(pTab->zName, zName, nName+1);
+        for(ppTab=&pSession->pTable; *ppTab; ppTab=&(*ppTab)->pNext);
+        *ppTab = pTab;
+      }
+    }
+  }
+
+  sqlite3_mutex_leave(sqlite3_db_mutex(pSession->db));
+  return rc;
+}
+
+/*
+** Append the value passed as the second argument to the buffer passed
+** as the first.
+**
+** This function is a no-op if *pRc is non-zero when it is called.
+** Otherwise, if an error occurs, *pRc is set to an SQLite error code
+** before returning.
+*/
+static void sessionAppendValue(SessionBuffer *p, sqlite3_value *pVal, int *pRc){
+  int rc = *pRc;
+  if( rc==SQLITE_OK ){
+    sqlite3_int64 nByte = 0;
+    rc = sessionSerializeValue(0, pVal, &nByte);
+    sessionBufferGrow(p, nByte, &rc);
+    if( rc==SQLITE_OK ){
+      rc = sessionSerializeValue(&p->aBuf[p->nBuf], pVal, 0);
+      p->nBuf += nByte;
+    }else{
+      *pRc = rc;
+    }
+  }
+}
+
+/*
+** This function is a no-op if *pRc is other than SQLITE_OK when it is 
+** called. Otherwise, append a single byte to the buffer. 
+**
+** If an OOM condition is encountered, set *pRc to SQLITE_NOMEM before
+** returning.
+*/
+static void sessionAppendByte(SessionBuffer *p, u8 v, int *pRc){
+  if( 0==sessionBufferGrow(p, 1, pRc) ){
+    p->aBuf[p->nBuf++] = v;
+  }
+}
+
+/*
+** This function is a no-op if *pRc is other than SQLITE_OK when it is 
+** called. Otherwise, append a single varint to the buffer. 
+**
+** If an OOM condition is encountered, set *pRc to SQLITE_NOMEM before
+** returning.
+*/
+static void sessionAppendVarint(SessionBuffer *p, int v, int *pRc){
+  if( 0==sessionBufferGrow(p, 9, pRc) ){
+    p->nBuf += sessionVarintPut(&p->aBuf[p->nBuf], v);
+  }
+}
+
+/*
+** This function is a no-op if *pRc is other than SQLITE_OK when it is 
+** called. Otherwise, append a blob of data to the buffer. 
+**
+** If an OOM condition is encountered, set *pRc to SQLITE_NOMEM before
+** returning.
+*/
+static void sessionAppendBlob(
+  SessionBuffer *p, 
+  const u8 *aBlob, 
+  int nBlob, 
+  int *pRc
+){
+  if( nBlob>0 && 0==sessionBufferGrow(p, nBlob, pRc) ){
+    memcpy(&p->aBuf[p->nBuf], aBlob, nBlob);
+    p->nBuf += nBlob;
+  }
+}
+
+/*
+** This function is a no-op if *pRc is other than SQLITE_OK when it is 
+** called. Otherwise, append the string representation of integer iVal
+** to the buffer. No nul-terminator is written.
+**
+** If an OOM condition is encountered, set *pRc to SQLITE_NOMEM before
+** returning.
+*/
+static void sessionAppendInteger(
+  SessionBuffer *p,               /* Buffer to append to */
+  int iVal,                       /* Value to write the string rep. of */
+  int *pRc                        /* IN/OUT: Error code */
+){
+  char aBuf[24];
+  sqlite3_snprintf(sizeof(aBuf)-1, aBuf, "%d", iVal);
+  sessionAppendStr(p, aBuf, pRc);
+}
+
+/*
+** This function is a no-op if *pRc is other than SQLITE_OK when it is 
+** called. Otherwise, append the string zStr enclosed in quotes (") and
+** with any embedded quote characters escaped to the buffer. No 
+** nul-terminator byte is written.
+**
+** If an OOM condition is encountered, set *pRc to SQLITE_NOMEM before
+** returning.
+*/
+static void sessionAppendIdent(
+  SessionBuffer *p,               /* Buffer to a append to */
+  const char *zStr,               /* String to quote, escape and append */
+  int *pRc                        /* IN/OUT: Error code */
+){
+  int nStr = sqlite3Strlen30(zStr)*2 + 2 + 2;
+  if( 0==sessionBufferGrow(p, nStr, pRc) ){
+    char *zOut = (char *)&p->aBuf[p->nBuf];
+    const char *zIn = zStr;
+    *zOut++ = '"';
+    while( *zIn ){
+      if( *zIn=='"' ) *zOut++ = '"';
+      *zOut++ = *(zIn++);
+    }
+    *zOut++ = '"';
+    p->nBuf = (int)((u8 *)zOut - p->aBuf);
+    p->aBuf[p->nBuf] = 0x00;
+  }
+}
+
+/*
+** This function is a no-op if *pRc is other than SQLITE_OK when it is
+** called. Otherwse, it appends the serialized version of the value stored
+** in column iCol of the row that SQL statement pStmt currently points
+** to to the buffer.
+*/
+static void sessionAppendCol(
+  SessionBuffer *p,               /* Buffer to append to */
+  sqlite3_stmt *pStmt,            /* Handle pointing to row containing value */
+  int iCol,                       /* Column to read value from */
+  int *pRc                        /* IN/OUT: Error code */
+){
+  if( *pRc==SQLITE_OK ){
+    int eType = sqlite3_column_type(pStmt, iCol);
+    sessionAppendByte(p, (u8)eType, pRc);
+    if( eType==SQLITE_INTEGER || eType==SQLITE_FLOAT ){
+      sqlite3_int64 i;
+      u8 aBuf[8];
+      if( eType==SQLITE_INTEGER ){
+        i = sqlite3_column_int64(pStmt, iCol);
+      }else{
+        double r = sqlite3_column_double(pStmt, iCol);
+        memcpy(&i, &r, 8);
+      }
+      sessionPutI64(aBuf, i);
+      sessionAppendBlob(p, aBuf, 8, pRc);
+    }
+    if( eType==SQLITE_BLOB || eType==SQLITE_TEXT ){
+      u8 *z;
+      int nByte;
+      if( eType==SQLITE_BLOB ){
+        z = (u8 *)sqlite3_column_blob(pStmt, iCol);
+      }else{
+        z = (u8 *)sqlite3_column_text(pStmt, iCol);
+      }
+      nByte = sqlite3_column_bytes(pStmt, iCol);
+      if( z || (eType==SQLITE_BLOB && nByte==0) ){
+        sessionAppendVarint(p, nByte, pRc);
+        sessionAppendBlob(p, z, nByte, pRc);
+      }else{
+        *pRc = SQLITE_NOMEM;
+      }
+    }
+  }
+}
+
+/*
+**
+** This function appends an update change to the buffer (see the comments 
+** under "CHANGESET FORMAT" at the top of the file). An update change 
+** consists of:
+**
+**   1 byte:  SQLITE_UPDATE (0x17)
+**   n bytes: old.* record (see RECORD FORMAT)
+**   m bytes: new.* record (see RECORD FORMAT)
+**
+** The SessionChange object passed as the third argument contains the
+** values that were stored in the row when the session began (the old.*
+** values). The statement handle passed as the second argument points
+** at the current version of the row (the new.* values).
+**
+** If all of the old.* values are equal to their corresponding new.* value
+** (i.e. nothing has changed), then no data at all is appended to the buffer.
+**
+** Otherwise, the old.* record contains all primary key values and the 
+** original values of any fields that have been modified. The new.* record 
+** contains the new values of only those fields that have been modified.
+*/ 
+static int sessionAppendUpdate(
+  SessionBuffer *pBuf,            /* Buffer to append to */
+  int bPatchset,                  /* True for "patchset", 0 for "changeset" */
+  sqlite3_stmt *pStmt,            /* Statement handle pointing at new row */
+  SessionChange *p,               /* Object containing old values */
+  u8 *abPK                        /* Boolean array - true for PK columns */
+){
+  int rc = SQLITE_OK;
+  SessionBuffer buf2 = {0,0,0}; /* Buffer to accumulate new.* record in */
+  int bNoop = 1;                /* Set to zero if any values are modified */
+  int nRewind = pBuf->nBuf;     /* Set to zero if any values are modified */
+  int i;                        /* Used to iterate through columns */
+  u8 *pCsr = p->aRecord;        /* Used to iterate through old.* values */
+
+  assert( abPK!=0 );
+  sessionAppendByte(pBuf, SQLITE_UPDATE, &rc);
+  sessionAppendByte(pBuf, p->bIndirect, &rc);
+  for(i=0; i<sqlite3_column_count(pStmt); i++){
+    int bChanged = 0;
+    int nAdvance;
+    int eType = *pCsr;
+    switch( eType ){
+      case SQLITE_NULL:
+        nAdvance = 1;
+        if( sqlite3_column_type(pStmt, i)!=SQLITE_NULL ){
+          bChanged = 1;
+        }
+        break;
+
+      case SQLITE_FLOAT:
+      case SQLITE_INTEGER: {
+        nAdvance = 9;
+        if( eType==sqlite3_column_type(pStmt, i) ){
+          sqlite3_int64 iVal = sessionGetI64(&pCsr[1]);
+          if( eType==SQLITE_INTEGER ){
+            if( iVal==sqlite3_column_int64(pStmt, i) ) break;
+          }else{
+            double dVal;
+            memcpy(&dVal, &iVal, 8);
+            if( dVal==sqlite3_column_double(pStmt, i) ) break;
+          }
+        }
+        bChanged = 1;
+        break;
+      }
+
+      default: {
+        int n;
+        int nHdr = 1 + sessionVarintGet(&pCsr[1], &n);
+        assert( eType==SQLITE_TEXT || eType==SQLITE_BLOB );
+        nAdvance = nHdr + n;
+        if( eType==sqlite3_column_type(pStmt, i) 
+         && n==sqlite3_column_bytes(pStmt, i) 
+         && (n==0 || 0==memcmp(&pCsr[nHdr], sqlite3_column_blob(pStmt, i), n))
+        ){
+          break;
+        }
+        bChanged = 1;
+      }
+    }
+
+    /* If at least one field has been modified, this is not a no-op. */
+    if( bChanged ) bNoop = 0;
+
+    /* Add a field to the old.* record. This is omitted if this module is
+    ** currently generating a patchset. */
+    if( bPatchset==0 ){
+      if( bChanged || abPK[i] ){
+        sessionAppendBlob(pBuf, pCsr, nAdvance, &rc);
+      }else{
+        sessionAppendByte(pBuf, 0, &rc);
+      }
+    }
+
+    /* Add a field to the new.* record. Or the only record if currently
+    ** generating a patchset.  */
+    if( bChanged || (bPatchset && abPK[i]) ){
+      sessionAppendCol(&buf2, pStmt, i, &rc);
+    }else{
+      sessionAppendByte(&buf2, 0, &rc);
+    }
+
+    pCsr += nAdvance;
+  }
+
+  if( bNoop ){
+    pBuf->nBuf = nRewind;
+  }else{
+    sessionAppendBlob(pBuf, buf2.aBuf, buf2.nBuf, &rc);
+  }
+  sqlite3_free(buf2.aBuf);
+
+  return rc;
+}
+
+/*
+** Append a DELETE change to the buffer passed as the first argument. Use
+** the changeset format if argument bPatchset is zero, or the patchset
+** format otherwise.
+*/
+static int sessionAppendDelete(
+  SessionBuffer *pBuf,            /* Buffer to append to */
+  int bPatchset,                  /* True for "patchset", 0 for "changeset" */
+  SessionChange *p,               /* Object containing old values */
+  int nCol,                       /* Number of columns in table */
+  u8 *abPK                        /* Boolean array - true for PK columns */
+){
+  int rc = SQLITE_OK;
+
+  sessionAppendByte(pBuf, SQLITE_DELETE, &rc);
+  sessionAppendByte(pBuf, p->bIndirect, &rc);
+
+  if( bPatchset==0 ){
+    sessionAppendBlob(pBuf, p->aRecord, p->nRecord, &rc);
+  }else{
+    int i;
+    u8 *a = p->aRecord;
+    for(i=0; i<nCol; i++){
+      u8 *pStart = a;
+      int eType = *a++;
+
+      switch( eType ){
+        case 0:
+        case SQLITE_NULL:
+          assert( abPK[i]==0 );
+          break;
+
+        case SQLITE_FLOAT:
+        case SQLITE_INTEGER:
+          a += 8;
+          break;
+
+        default: {
+          int n;
+          a += sessionVarintGet(a, &n);
+          a += n;
+          break;
+        }
+      }
+      if( abPK[i] ){
+        sessionAppendBlob(pBuf, pStart, (int)(a-pStart), &rc);
+      }
+    }
+    assert( (a - p->aRecord)==p->nRecord );
+  }
+
+  return rc;
+}
+
+/*
+** Formulate and prepare a SELECT statement to retrieve a row from table
+** zTab in database zDb based on its primary key. i.e.
+**
+**   SELECT *, <noop-test> FROM zDb.zTab WHERE (pk1, pk2,...) IS (?1, ?2,...)
+**
+** where <noop-test> is: 
+**
+**   1 AND (?A OR ?1 IS <column>) AND ...
+**
+** for each non-pk <column>.
+*/
+static int sessionSelectStmt(
+  sqlite3 *db,                    /* Database handle */
+  int bIgnoreNoop,
+  const char *zDb,                /* Database name */
+  const char *zTab,               /* Table name */
+  int bRowid,
+  int nCol,                       /* Number of columns in table */
+  const char **azCol,             /* Names of table columns */
+  u8 *abPK,                       /* PRIMARY KEY  array */
+  sqlite3_stmt **ppStmt           /* OUT: Prepared SELECT statement */
+){
+  int rc = SQLITE_OK;
+  char *zSql = 0;
+  const char *zSep = "";
+  const char *zCols = bRowid ? SESSIONS_ROWID ", *" : "*";
+  int nSql = -1;
+  int i;
+
+  SessionBuffer nooptest = {0, 0, 0};
+  SessionBuffer pkfield = {0, 0, 0};
+  SessionBuffer pkvar = {0, 0, 0};
+
+  sessionAppendStr(&nooptest, ", 1", &rc);
+
+  if( 0==sqlite3_stricmp("sqlite_stat1", zTab) ){
+    sessionAppendStr(&nooptest, " AND (?6 OR ?3 IS stat)", &rc);
+    sessionAppendStr(&pkfield, "tbl, idx", &rc);
+    sessionAppendStr(&pkvar, 
+        "?1, (CASE WHEN ?2=X'' THEN NULL ELSE ?2 END)", &rc
+    );
+    zCols = "tbl, ?2, stat";
+  }else{
+    for(i=0; i<nCol; i++){
+      if( abPK[i] ){
+        sessionAppendStr(&pkfield, zSep, &rc);
+        sessionAppendStr(&pkvar, zSep, &rc);
+        zSep = ", ";
+        sessionAppendIdent(&pkfield, azCol[i], &rc);
+        sessionAppendPrintf(&pkvar, &rc, "?%d", i+1);
+      }else{
+        sessionAppendPrintf(&nooptest, &rc, 
+            " AND (?%d OR ?%d IS %w.%w)", i+1+nCol, i+1, zTab, azCol[i]
+        );
+      }
+    }
+  }
+
+  if( rc==SQLITE_OK ){
+    zSql = sqlite3_mprintf(
+        "SELECT %s%s FROM %Q.%Q WHERE (%s) IS (%s)",
+        zCols, (bIgnoreNoop ? (char*)nooptest.aBuf : ""), 
+        zDb, zTab, (char*)pkfield.aBuf, (char*)pkvar.aBuf
+    );
+    if( zSql==0 ) rc = SQLITE_NOMEM;
+  }
+
+#if 0
+  if( 0==sqlite3_stricmp("sqlite_stat1", zTab) ){
+    zSql = sqlite3_mprintf(
+        "SELECT tbl, ?2, stat FROM %Q.sqlite_stat1 WHERE tbl IS ?1 AND "
+        "idx IS (CASE WHEN ?2=X'' THEN NULL ELSE ?2 END)", zDb
+    );
+    if( zSql==0 ) rc = SQLITE_NOMEM;
+  }else{
+    const char *zSep = "";
+    SessionBuffer buf = {0, 0, 0};
+
+    sessionAppendStr(&buf, "SELECT * FROM ", &rc);
+    sessionAppendIdent(&buf, zDb, &rc);
+    sessionAppendStr(&buf, ".", &rc);
+    sessionAppendIdent(&buf, zTab, &rc);
+    sessionAppendStr(&buf, " WHERE ", &rc);
+    for(i=0; i<nCol; i++){
+      if( abPK[i] ){
+        sessionAppendStr(&buf, zSep, &rc);
+        sessionAppendIdent(&buf, azCol[i], &rc);
+        sessionAppendStr(&buf, " IS ?", &rc);
+        sessionAppendInteger(&buf, i+1, &rc);
+        zSep = " AND ";
+      }
+    }
+    zSql = (char*)buf.aBuf;
+    nSql = buf.nBuf;
+  }
+#endif
+
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_prepare_v2(db, zSql, nSql, ppStmt, 0);
+  }
+  sqlite3_free(zSql);
+  sqlite3_free(nooptest.aBuf);
+  sqlite3_free(pkfield.aBuf);
+  sqlite3_free(pkvar.aBuf);
+  return rc;
+}
+
+/*
+** Bind the PRIMARY KEY values from the change passed in argument pChange
+** to the SELECT statement passed as the first argument. The SELECT statement
+** is as prepared by function sessionSelectStmt().
+**
+** Return SQLITE_OK if all PK values are successfully bound, or an SQLite
+** error code (e.g. SQLITE_NOMEM) otherwise.
+*/
+static int sessionSelectBind(
+  sqlite3_stmt *pSelect,          /* SELECT from sessionSelectStmt() */
+  int nCol,                       /* Number of columns in table */
+  u8 *abPK,                       /* PRIMARY KEY array */
+  SessionChange *pChange          /* Change structure */
+){
+  int i;
+  int rc = SQLITE_OK;
+  u8 *a = pChange->aRecord;
+
+  for(i=0; i<nCol && rc==SQLITE_OK; i++){
+    int eType = *a++;
+
+    switch( eType ){
+      case 0:
+      case SQLITE_NULL:
+        assert( abPK[i]==0 );
+        break;
+
+      case SQLITE_INTEGER: {
+        if( abPK[i] ){
+          i64 iVal = sessionGetI64(a);
+          rc = sqlite3_bind_int64(pSelect, i+1, iVal);
+        }
+        a += 8;
+        break;
+      }
+
+      case SQLITE_FLOAT: {
+        if( abPK[i] ){
+          double rVal;
+          i64 iVal = sessionGetI64(a);
+          memcpy(&rVal, &iVal, 8);
+          rc = sqlite3_bind_double(pSelect, i+1, rVal);
+        }
+        a += 8;
+        break;
+      }
+
+      case SQLITE_TEXT: {
+        int n;
+        a += sessionVarintGet(a, &n);
+        if( abPK[i] ){
+          rc = sqlite3_bind_text(pSelect, i+1, (char *)a, n, SQLITE_TRANSIENT);
+        }
+        a += n;
+        break;
+      }
+
+      default: {
+        int n;
+        assert( eType==SQLITE_BLOB );
+        a += sessionVarintGet(a, &n);
+        if( abPK[i] ){
+          rc = sqlite3_bind_blob(pSelect, i+1, a, n, SQLITE_TRANSIENT);
+        }
+        a += n;
+        break;
+      }
+    }
+  }
+
+  return rc;
+}
+
+/*
+** This function is a no-op if *pRc is set to other than SQLITE_OK when it
+** is called. Otherwise, append a serialized table header (part of the binary 
+** changeset format) to buffer *pBuf. If an error occurs, set *pRc to an
+** SQLite error code before returning.
+*/
+static void sessionAppendTableHdr(
+  SessionBuffer *pBuf,            /* Append header to this buffer */
+  int bPatchset,                  /* Use the patchset format if true */
+  SessionTable *pTab,             /* Table object to append header for */
+  int *pRc                        /* IN/OUT: Error code */
+){
+  /* Write a table header */
+  sessionAppendByte(pBuf, (bPatchset ? 'P' : 'T'), pRc);
+  sessionAppendVarint(pBuf, pTab->nCol, pRc);
+  sessionAppendBlob(pBuf, pTab->abPK, pTab->nCol, pRc);
+  sessionAppendBlob(pBuf, (u8 *)pTab->zName, (int)strlen(pTab->zName)+1, pRc);
+}
+
+/*
+** Generate either a changeset (if argument bPatchset is zero) or a patchset
+** (if it is non-zero) based on the current contents of the session object
+** passed as the first argument.
+**
+** If no error occurs, SQLITE_OK is returned and the new changeset/patchset
+** stored in output variables *pnChangeset and *ppChangeset. Or, if an error
+** occurs, an SQLite error code is returned and both output variables set 
+** to 0.
+*/
+static int sessionGenerateChangeset(
+  sqlite3_session *pSession,      /* Session object */
+  int bPatchset,                  /* True for patchset, false for changeset */
+  int (*xOutput)(void *pOut, const void *pData, int nData),
+  void *pOut,                     /* First argument for xOutput */
+  int *pnChangeset,               /* OUT: Size of buffer at *ppChangeset */
+  void **ppChangeset              /* OUT: Buffer containing changeset */
+){
+  sqlite3 *db = pSession->db;     /* Source database handle */
+  SessionTable *pTab;             /* Used to iterate through attached tables */
+  SessionBuffer buf = {0,0,0};    /* Buffer in which to accumlate changeset */
+  int rc;                         /* Return code */
+
+  assert( xOutput==0 || (pnChangeset==0 && ppChangeset==0) );
+  assert( xOutput!=0 || (pnChangeset!=0 && ppChangeset!=0) );
+
+  /* Zero the output variables in case an error occurs. If this session
+  ** object is already in the error state (sqlite3_session.rc != SQLITE_OK),
+  ** this call will be a no-op.  */
+  if( xOutput==0 ){
+    assert( pnChangeset!=0  && ppChangeset!=0 );
+    *pnChangeset = 0;
+    *ppChangeset = 0;
+  }
+
+  if( pSession->rc ) return pSession->rc;
+  rc = sqlite3_exec(pSession->db, "SAVEPOINT changeset", 0, 0, 0);
+  if( rc!=SQLITE_OK ) return rc;
+
+  sqlite3_mutex_enter(sqlite3_db_mutex(db));
+
+  for(pTab=pSession->pTable; rc==SQLITE_OK && pTab; pTab=pTab->pNext){
+    if( pTab->nEntry ){
+      const char *zName = pTab->zName;
+      int i;                      /* Used to iterate through hash buckets */
+      sqlite3_stmt *pSel = 0;     /* SELECT statement to query table pTab */
+      int nRewind = buf.nBuf;     /* Initial size of write buffer */
+      int nNoop;                  /* Size of buffer after writing tbl header */
+      int nOldCol = pTab->nCol;
+
+      /* Check the table schema is still Ok. */
+      rc = sessionReinitTable(pSession, pTab);
+      if( rc==SQLITE_OK && pTab->nCol!=nOldCol ){
+        rc = sessionUpdateChanges(pSession, pTab);
+      }
+
+      /* Write a table header */
+      sessionAppendTableHdr(&buf, bPatchset, pTab, &rc);
+
+      /* Build and compile a statement to execute: */
+      if( rc==SQLITE_OK ){
+        rc = sessionSelectStmt(db, 0, pSession->zDb, 
+            zName, pTab->bRowid, pTab->nCol, pTab->azCol, pTab->abPK, &pSel
+        );
+      }
+
+      nNoop = buf.nBuf;
+      for(i=0; i<pTab->nChange && rc==SQLITE_OK; i++){
+        SessionChange *p;         /* Used to iterate through changes */
+
+        for(p=pTab->apChange[i]; rc==SQLITE_OK && p; p=p->pNext){
+          rc = sessionSelectBind(pSel, pTab->nCol, pTab->abPK, p);
+          if( rc!=SQLITE_OK ) continue;
+          if( sqlite3_step(pSel)==SQLITE_ROW ){
+            if( p->op==SQLITE_INSERT ){
+              int iCol;
+              sessionAppendByte(&buf, SQLITE_INSERT, &rc);
+              sessionAppendByte(&buf, p->bIndirect, &rc);
+              for(iCol=0; iCol<pTab->nCol; iCol++){
+                sessionAppendCol(&buf, pSel, iCol, &rc);
+              }
+            }else{
+              assert( pTab->abPK!=0 );
+              rc = sessionAppendUpdate(&buf, bPatchset, pSel, p, pTab->abPK);
+            }
+          }else if( p->op!=SQLITE_INSERT ){
+            rc = sessionAppendDelete(&buf, bPatchset, p, pTab->nCol,pTab->abPK);
+          }
+          if( rc==SQLITE_OK ){
+            rc = sqlite3_reset(pSel);
+          }
+
+          /* If the buffer is now larger than sessions_strm_chunk_size, pass
+          ** its contents to the xOutput() callback. */
+          if( xOutput 
+           && rc==SQLITE_OK 
+           && buf.nBuf>nNoop 
+           && buf.nBuf>sessions_strm_chunk_size 
+          ){
+            rc = xOutput(pOut, (void*)buf.aBuf, buf.nBuf);
+            nNoop = -1;
+            buf.nBuf = 0;
+          }
+
+        }
+      }
+
+      sqlite3_finalize(pSel);
+      if( buf.nBuf==nNoop ){
+        buf.nBuf = nRewind;
+      }
+    }
+  }
+
+  if( rc==SQLITE_OK ){
+    if( xOutput==0 ){
+      *pnChangeset = buf.nBuf;
+      *ppChangeset = buf.aBuf;
+      buf.aBuf = 0;
+    }else if( buf.nBuf>0 ){
+      rc = xOutput(pOut, (void*)buf.aBuf, buf.nBuf);
+    }
+  }
+
+  sqlite3_free(buf.aBuf);
+  sqlite3_exec(db, "RELEASE changeset", 0, 0, 0);
+  sqlite3_mutex_leave(sqlite3_db_mutex(db));
+  return rc;
+}
+
+/*
+** Obtain a changeset object containing all changes recorded by the 
+** session object passed as the first argument.
+**
+** It is the responsibility of the caller to eventually free the buffer 
+** using sqlite3_free().
+*/
+int sqlite3session_changeset(
+  sqlite3_session *pSession,      /* Session object */
+  int *pnChangeset,               /* OUT: Size of buffer at *ppChangeset */
+  void **ppChangeset              /* OUT: Buffer containing changeset */
+){
+  int rc;
+
+  if( pnChangeset==0 || ppChangeset==0 ) return SQLITE_MISUSE;
+  rc = sessionGenerateChangeset(pSession, 0, 0, 0, pnChangeset, ppChangeset);
+  assert( rc || pnChangeset==0 
+       || pSession->bEnableSize==0 || *pnChangeset<=pSession->nMaxChangesetSize 
+  );
+  return rc;
+}
+
+/*
+** Streaming version of sqlite3session_changeset().
+*/
+int sqlite3session_changeset_strm(
+  sqlite3_session *pSession,
+  int (*xOutput)(void *pOut, const void *pData, int nData),
+  void *pOut
+){
+  if( xOutput==0 ) return SQLITE_MISUSE;
+  return sessionGenerateChangeset(pSession, 0, xOutput, pOut, 0, 0);
+}
+
+/*
+** Streaming version of sqlite3session_patchset().
+*/
+int sqlite3session_patchset_strm(
+  sqlite3_session *pSession,
+  int (*xOutput)(void *pOut, const void *pData, int nData),
+  void *pOut
+){
+  if( xOutput==0 ) return SQLITE_MISUSE;
+  return sessionGenerateChangeset(pSession, 1, xOutput, pOut, 0, 0);
+}
+
+/*
+** Obtain a patchset object containing all changes recorded by the 
+** session object passed as the first argument.
+**
+** It is the responsibility of the caller to eventually free the buffer 
+** using sqlite3_free().
+*/
+int sqlite3session_patchset(
+  sqlite3_session *pSession,      /* Session object */
+  int *pnPatchset,                /* OUT: Size of buffer at *ppChangeset */
+  void **ppPatchset               /* OUT: Buffer containing changeset */
+){
+  if( pnPatchset==0 || ppPatchset==0 ) return SQLITE_MISUSE;
+  return sessionGenerateChangeset(pSession, 1, 0, 0, pnPatchset, ppPatchset);
+}
+
+/*
+** Enable or disable the session object passed as the first argument.
+*/
+int sqlite3session_enable(sqlite3_session *pSession, int bEnable){
+  int ret;
+  sqlite3_mutex_enter(sqlite3_db_mutex(pSession->db));
+  if( bEnable>=0 ){
+    pSession->bEnable = bEnable;
+  }
+  ret = pSession->bEnable;
+  sqlite3_mutex_leave(sqlite3_db_mutex(pSession->db));
+  return ret;
+}
+
+/*
+** Enable or disable the session object passed as the first argument.
+*/
+int sqlite3session_indirect(sqlite3_session *pSession, int bIndirect){
+  int ret;
+  sqlite3_mutex_enter(sqlite3_db_mutex(pSession->db));
+  if( bIndirect>=0 ){
+    pSession->bIndirect = bIndirect;
+  }
+  ret = pSession->bIndirect;
+  sqlite3_mutex_leave(sqlite3_db_mutex(pSession->db));
+  return ret;
+}
+
+/*
+** Return true if there have been no changes to monitored tables recorded
+** by the session object passed as the only argument.
+*/
+int sqlite3session_isempty(sqlite3_session *pSession){
+  int ret = 0;
+  SessionTable *pTab;
+
+  sqlite3_mutex_enter(sqlite3_db_mutex(pSession->db));
+  for(pTab=pSession->pTable; pTab && ret==0; pTab=pTab->pNext){
+    ret = (pTab->nEntry>0);
+  }
+  sqlite3_mutex_leave(sqlite3_db_mutex(pSession->db));
+
+  return (ret==0);
+}
+
+/*
+** Return the amount of heap memory in use.
+*/
+sqlite3_int64 sqlite3session_memory_used(sqlite3_session *pSession){
+  return pSession->nMalloc;
+}
+
+/*
+** Configure the session object passed as the first argument.
+*/
+int sqlite3session_object_config(sqlite3_session *pSession, int op, void *pArg){
+  int rc = SQLITE_OK;
+  switch( op ){
+    case SQLITE_SESSION_OBJCONFIG_SIZE: {
+      int iArg = *(int*)pArg;
+      if( iArg>=0 ){
+        if( pSession->pTable ){
+          rc = SQLITE_MISUSE;
+        }else{
+          pSession->bEnableSize = (iArg!=0);
+        }
+      }
+      *(int*)pArg = pSession->bEnableSize;
+      break;
+    }
+
+    case SQLITE_SESSION_OBJCONFIG_ROWID: {
+      int iArg = *(int*)pArg;
+      if( iArg>=0 ){
+        if( pSession->pTable ){
+          rc = SQLITE_MISUSE;
+        }else{
+          pSession->bImplicitPK = (iArg!=0);
+        }
+      }
+      *(int*)pArg = pSession->bImplicitPK;
+      break;
+    }
+
+    default:
+      rc = SQLITE_MISUSE;
+  }
+
+  return rc;
+}
+
+/*
+** Return the maximum size of sqlite3session_changeset() output.
+*/
+sqlite3_int64 sqlite3session_changeset_size(sqlite3_session *pSession){
+  return pSession->nMaxChangesetSize;
+}
+
+/*
+** Do the work for either sqlite3changeset_start() or start_strm().
+*/
+static int sessionChangesetStart(
+  sqlite3_changeset_iter **pp,    /* OUT: Changeset iterator handle */
+  int (*xInput)(void *pIn, void *pData, int *pnData),
+  void *pIn,
+  int nChangeset,                 /* Size of buffer pChangeset in bytes */
+  void *pChangeset,               /* Pointer to buffer containing changeset */
+  int bInvert,                    /* True to invert changeset */
+  int bSkipEmpty                  /* True to skip empty UPDATE changes */
+){
+  sqlite3_changeset_iter *pRet;   /* Iterator to return */
+  int nByte;                      /* Number of bytes to allocate for iterator */
+
+  assert( xInput==0 || (pChangeset==0 && nChangeset==0) );
+
+  /* Zero the output variable in case an error occurs. */
+  *pp = 0;
+
+  /* Allocate and initialize the iterator structure. */
+  nByte = sizeof(sqlite3_changeset_iter);
+  pRet = (sqlite3_changeset_iter *)sqlite3_malloc(nByte);
+  if( !pRet ) return SQLITE_NOMEM;
+  memset(pRet, 0, sizeof(sqlite3_changeset_iter));
+  pRet->in.aData = (u8 *)pChangeset;
+  pRet->in.nData = nChangeset;
+  pRet->in.xInput = xInput;
+  pRet->in.pIn = pIn;
+  pRet->in.bEof = (xInput ? 0 : 1);
+  pRet->bInvert = bInvert;
+  pRet->bSkipEmpty = bSkipEmpty;
+
+  /* Populate the output variable and return success. */
+  *pp = pRet;
+  return SQLITE_OK;
+}
+
+/*
+** Create an iterator used to iterate through the contents of a changeset.
+*/
+int sqlite3changeset_start(
+  sqlite3_changeset_iter **pp,    /* OUT: Changeset iterator handle */
+  int nChangeset,                 /* Size of buffer pChangeset in bytes */
+  void *pChangeset                /* Pointer to buffer containing changeset */
+){
+  return sessionChangesetStart(pp, 0, 0, nChangeset, pChangeset, 0, 0);
+}
+int sqlite3changeset_start_v2(
+  sqlite3_changeset_iter **pp,    /* OUT: Changeset iterator handle */
+  int nChangeset,                 /* Size of buffer pChangeset in bytes */
+  void *pChangeset,               /* Pointer to buffer containing changeset */
+  int flags
+){
+  int bInvert = !!(flags & SQLITE_CHANGESETSTART_INVERT);
+  return sessionChangesetStart(pp, 0, 0, nChangeset, pChangeset, bInvert, 0);
+}
+
+/*
+** Streaming version of sqlite3changeset_start().
+*/
+int sqlite3changeset_start_strm(
+  sqlite3_changeset_iter **pp,    /* OUT: Changeset iterator handle */
+  int (*xInput)(void *pIn, void *pData, int *pnData),
+  void *pIn
+){
+  return sessionChangesetStart(pp, xInput, pIn, 0, 0, 0, 0);
+}
+int sqlite3changeset_start_v2_strm(
+  sqlite3_changeset_iter **pp,    /* OUT: Changeset iterator handle */
+  int (*xInput)(void *pIn, void *pData, int *pnData),
+  void *pIn,
+  int flags
+){
+  int bInvert = !!(flags & SQLITE_CHANGESETSTART_INVERT);
+  return sessionChangesetStart(pp, xInput, pIn, 0, 0, bInvert, 0);
+}
+
+/*
+** If the SessionInput object passed as the only argument is a streaming
+** object and the buffer is full, discard some data to free up space.
+*/
+static void sessionDiscardData(SessionInput *pIn){
+  if( pIn->xInput && pIn->iNext>=sessions_strm_chunk_size ){
+    int nMove = pIn->buf.nBuf - pIn->iNext;
+    assert( nMove>=0 );
+    if( nMove>0 ){
+      memmove(pIn->buf.aBuf, &pIn->buf.aBuf[pIn->iNext], nMove);
+    }
+    pIn->buf.nBuf -= pIn->iNext;
+    pIn->iNext = 0;
+    pIn->nData = pIn->buf.nBuf;
+  }
+}
+
+/*
+** Ensure that there are at least nByte bytes available in the buffer. Or,
+** if there are not nByte bytes remaining in the input, that all available
+** data is in the buffer.
+**
+** Return an SQLite error code if an error occurs, or SQLITE_OK otherwise.
+*/
+static int sessionInputBuffer(SessionInput *pIn, int nByte){
+  int rc = SQLITE_OK;
+  if( pIn->xInput ){
+    while( !pIn->bEof && (pIn->iNext+nByte)>=pIn->nData && rc==SQLITE_OK ){
+      int nNew = sessions_strm_chunk_size;
+
+      if( pIn->bNoDiscard==0 ) sessionDiscardData(pIn);
+      if( SQLITE_OK==sessionBufferGrow(&pIn->buf, nNew, &rc) ){
+        rc = pIn->xInput(pIn->pIn, &pIn->buf.aBuf[pIn->buf.nBuf], &nNew);
+        if( nNew==0 ){
+          pIn->bEof = 1;
+        }else{
+          pIn->buf.nBuf += nNew;
+        }
+      }
+
+      pIn->aData = pIn->buf.aBuf;
+      pIn->nData = pIn->buf.nBuf;
+    }
+  }
+  return rc;
+}
+
+/*
+** When this function is called, *ppRec points to the start of a record
+** that contains nCol values. This function advances the pointer *ppRec
+** until it points to the byte immediately following that record.
+*/
+static void sessionSkipRecord(
+  u8 **ppRec,                     /* IN/OUT: Record pointer */
+  int nCol                        /* Number of values in record */
+){
+  u8 *aRec = *ppRec;
+  int i;
+  for(i=0; i<nCol; i++){
+    int eType = *aRec++;
+    if( eType==SQLITE_TEXT || eType==SQLITE_BLOB ){
+      int nByte;
+      aRec += sessionVarintGet((u8*)aRec, &nByte);
+      aRec += nByte;
+    }else if( eType==SQLITE_INTEGER || eType==SQLITE_FLOAT ){
+      aRec += 8;
+    }
+  }
+
+  *ppRec = aRec;
+}
+
+/*
+** This function sets the value of the sqlite3_value object passed as the
+** first argument to a copy of the string or blob held in the aData[] 
+** buffer. SQLITE_OK is returned if successful, or SQLITE_NOMEM if an OOM
+** error occurs.
+*/
+static int sessionValueSetStr(
+  sqlite3_value *pVal,            /* Set the value of this object */
+  u8 *aData,                      /* Buffer containing string or blob data */
+  int nData,                      /* Size of buffer aData[] in bytes */
+  u8 enc                          /* String encoding (0 for blobs) */
+){
+  /* In theory this code could just pass SQLITE_TRANSIENT as the final
+  ** argument to sqlite3ValueSetStr() and have the copy created 
+  ** automatically. But doing so makes it difficult to detect any OOM
+  ** error. Hence the code to create the copy externally. */
+  u8 *aCopy = sqlite3_malloc64((sqlite3_int64)nData+1);
+  if( aCopy==0 ) return SQLITE_NOMEM;
+  memcpy(aCopy, aData, nData);
+  sqlite3ValueSetStr(pVal, nData, (char*)aCopy, enc, sqlite3_free);
+  return SQLITE_OK;
+}
+
+/*
+** Deserialize a single record from a buffer in memory. See "RECORD FORMAT"
+** for details.
+**
+** When this function is called, *paChange points to the start of the record
+** to deserialize. Assuming no error occurs, *paChange is set to point to
+** one byte after the end of the same record before this function returns.
+** If the argument abPK is NULL, then the record contains nCol values. Or,
+** if abPK is other than NULL, then the record contains only the PK fields
+** (in other words, it is a patchset DELETE record).
+**
+** If successful, each element of the apOut[] array (allocated by the caller)
+** is set to point to an sqlite3_value object containing the value read
+** from the corresponding position in the record. If that value is not
+** included in the record (i.e. because the record is part of an UPDATE change
+** and the field was not modified), the corresponding element of apOut[] is
+** set to NULL.
+**
+** It is the responsibility of the caller to free all sqlite_value structures
+** using sqlite3_free().
+**
+** If an error occurs, an SQLite error code (e.g. SQLITE_NOMEM) is returned.
+** The apOut[] array may have been partially populated in this case.
+*/
+static int sessionReadRecord(
+  SessionInput *pIn,              /* Input data */
+  int nCol,                       /* Number of values in record */
+  u8 *abPK,                       /* Array of primary key flags, or NULL */
+  sqlite3_value **apOut,          /* Write values to this array */
+  int *pbEmpty
+){
+  int i;                          /* Used to iterate through columns */
+  int rc = SQLITE_OK;
+
+  assert( pbEmpty==0 || *pbEmpty==0 );
+  if( pbEmpty ) *pbEmpty = 1;
+  for(i=0; i<nCol && rc==SQLITE_OK; i++){
+    int eType = 0;                /* Type of value (SQLITE_NULL, TEXT etc.) */
+    if( abPK && abPK[i]==0 ) continue;
+    rc = sessionInputBuffer(pIn, 9);
+    if( rc==SQLITE_OK ){
+      if( pIn->iNext>=pIn->nData ){
+        rc = SQLITE_CORRUPT_BKPT;
+      }else{
+        eType = pIn->aData[pIn->iNext++];
+        assert( apOut[i]==0 );
+        if( eType ){
+          if( pbEmpty ) *pbEmpty = 0;
+          apOut[i] = sqlite3ValueNew(0);
+          if( !apOut[i] ) rc = SQLITE_NOMEM;
+        }
+      }
+    }
+
+    if( rc==SQLITE_OK ){
+      u8 *aVal = &pIn->aData[pIn->iNext];
+      if( eType==SQLITE_TEXT || eType==SQLITE_BLOB ){
+        int nByte;
+        pIn->iNext += sessionVarintGet(aVal, &nByte);
+        rc = sessionInputBuffer(pIn, nByte);
+        if( rc==SQLITE_OK ){
+          if( nByte<0 || nByte>pIn->nData-pIn->iNext ){
+            rc = SQLITE_CORRUPT_BKPT;
+          }else{
+            u8 enc = (eType==SQLITE_TEXT ? SQLITE_UTF8 : 0);
+            rc = sessionValueSetStr(apOut[i],&pIn->aData[pIn->iNext],nByte,enc);
+            pIn->iNext += nByte;
+          }
+        }
+      }
+      if( eType==SQLITE_INTEGER || eType==SQLITE_FLOAT ){
+        if( (pIn->nData-pIn->iNext)<8 ){
+          rc = SQLITE_CORRUPT_BKPT;
+        }else{
+          sqlite3_int64 v = sessionGetI64(aVal);
+          if( eType==SQLITE_INTEGER ){
+            sqlite3VdbeMemSetInt64(apOut[i], v);
+          }else{
+            double d;
+            memcpy(&d, &v, 8);
+            sqlite3VdbeMemSetDouble(apOut[i], d);
+          }
+          pIn->iNext += 8;
+        }
+      }
+    }
+  }
+
+  return rc;
+}
+
+/*
+** The input pointer currently points to the second byte of a table-header.
+** Specifically, to the following:
+**
+**   + number of columns in table (varint)
+**   + array of PK flags (1 byte per column),
+**   + table name (nul terminated).
+**
+** This function ensures that all of the above is present in the input 
+** buffer (i.e. that it can be accessed without any calls to xInput()).
+** If successful, SQLITE_OK is returned. Otherwise, an SQLite error code.
+** The input pointer is not moved.
+*/
+static int sessionChangesetBufferTblhdr(SessionInput *pIn, int *pnByte){
+  int rc = SQLITE_OK;
+  int nCol = 0;
+  int nRead = 0;
+
+  rc = sessionInputBuffer(pIn, 9);
+  if( rc==SQLITE_OK ){
+    nRead += sessionVarintGet(&pIn->aData[pIn->iNext + nRead], &nCol);
+    /* The hard upper limit for the number of columns in an SQLite
+    ** database table is, according to sqliteLimit.h, 32676. So 
+    ** consider any table-header that purports to have more than 65536 
+    ** columns to be corrupt. This is convenient because otherwise, 
+    ** if the (nCol>65536) condition below were omitted, a sufficiently 
+    ** large value for nCol may cause nRead to wrap around and become 
+    ** negative. Leading to a crash. */
+    if( nCol<0 || nCol>65536 ){
+      rc = SQLITE_CORRUPT_BKPT;
+    }else{
+      rc = sessionInputBuffer(pIn, nRead+nCol+100);
+      nRead += nCol;
+    }
+  }
+
+  while( rc==SQLITE_OK ){
+    while( (pIn->iNext + nRead)<pIn->nData && pIn->aData[pIn->iNext + nRead] ){
+      nRead++;
+    }
+    if( (pIn->iNext + nRead)<pIn->nData ) break;
+    rc = sessionInputBuffer(pIn, nRead + 100);
+  }
+  *pnByte = nRead+1;
+  return rc;
+}
+
+/*
+** The input pointer currently points to the first byte of the first field
+** of a record consisting of nCol columns. This function ensures the entire
+** record is buffered. It does not move the input pointer.
+**
+** If successful, SQLITE_OK is returned and *pnByte is set to the size of
+** the record in bytes. Otherwise, an SQLite error code is returned. The
+** final value of *pnByte is undefined in this case.
+*/
+static int sessionChangesetBufferRecord(
+  SessionInput *pIn,              /* Input data */
+  int nCol,                       /* Number of columns in record */
+  int *pnByte                     /* OUT: Size of record in bytes */
+){
+  int rc = SQLITE_OK;
+  int nByte = 0;
+  int i;
+  for(i=0; rc==SQLITE_OK && i<nCol; i++){
+    int eType;
+    rc = sessionInputBuffer(pIn, nByte + 10);
+    if( rc==SQLITE_OK ){
+      eType = pIn->aData[pIn->iNext + nByte++];
+      if( eType==SQLITE_TEXT || eType==SQLITE_BLOB ){
+        int n;
+        nByte += sessionVarintGet(&pIn->aData[pIn->iNext+nByte], &n);
+        nByte += n;
+        rc = sessionInputBuffer(pIn, nByte);
+      }else if( eType==SQLITE_INTEGER || eType==SQLITE_FLOAT ){
+        nByte += 8;
+      }
+    }
+  }
+  *pnByte = nByte;
+  return rc;
+}
+
+/*
+** The input pointer currently points to the second byte of a table-header.
+** Specifically, to the following:
+**
+**   + number of columns in table (varint)
+**   + array of PK flags (1 byte per column),
+**   + table name (nul terminated).
+**
+** This function decodes the table-header and populates the p->nCol, 
+** p->zTab and p->abPK[] variables accordingly. The p->apValue[] array is 
+** also allocated or resized according to the new value of p->nCol. The
+** input pointer is left pointing to the byte following the table header.
+**
+** If successful, SQLITE_OK is returned. Otherwise, an SQLite error code
+** is returned and the final values of the various fields enumerated above
+** are undefined.
+*/
+static int sessionChangesetReadTblhdr(sqlite3_changeset_iter *p){
+  int rc;
+  int nCopy;
+  assert( p->rc==SQLITE_OK );
+
+  rc = sessionChangesetBufferTblhdr(&p->in, &nCopy);
+  if( rc==SQLITE_OK ){
+    int nByte;
+    int nVarint;
+    nVarint = sessionVarintGet(&p->in.aData[p->in.iNext], &p->nCol);
+    if( p->nCol>0 ){
+      nCopy -= nVarint;
+      p->in.iNext += nVarint;
+      nByte = p->nCol * sizeof(sqlite3_value*) * 2 + nCopy;
+      p->tblhdr.nBuf = 0;
+      sessionBufferGrow(&p->tblhdr, nByte, &rc);
+    }else{
+      rc = SQLITE_CORRUPT_BKPT;
+    }
+  }
+
+  if( rc==SQLITE_OK ){
+    size_t iPK = sizeof(sqlite3_value*)*p->nCol*2;
+    memset(p->tblhdr.aBuf, 0, iPK);
+    memcpy(&p->tblhdr.aBuf[iPK], &p->in.aData[p->in.iNext], nCopy);
+    p->in.iNext += nCopy;
+  }
+
+  p->apValue = (sqlite3_value**)p->tblhdr.aBuf;
+  if( p->apValue==0 ){
+    p->abPK = 0;
+    p->zTab = 0;
+  }else{
+    p->abPK = (u8*)&p->apValue[p->nCol*2];
+    p->zTab = p->abPK ? (char*)&p->abPK[p->nCol] : 0;
+  }
+  return (p->rc = rc);
+}
+
+/*
+** Advance the changeset iterator to the next change. The differences between
+** this function and sessionChangesetNext() are that
+**
+**   * If pbEmpty is not NULL and the change is a no-op UPDATE (an UPDATE
+**     that modifies no columns), this function sets (*pbEmpty) to 1.
+**
+**   * If the iterator is configured to skip no-op UPDATEs,
+**     sessionChangesetNext() does that. This function does not.
+*/
+static int sessionChangesetNextOne(
+  sqlite3_changeset_iter *p,      /* Changeset iterator */
+  u8 **paRec,                     /* If non-NULL, store record pointer here */
+  int *pnRec,                     /* If non-NULL, store size of record here */
+  int *pbNew,                     /* If non-NULL, true if new table */
+  int *pbEmpty
+){
+  int i;
+  u8 op;
+
+  assert( (paRec==0 && pnRec==0) || (paRec && pnRec) );
+  assert( pbEmpty==0 || *pbEmpty==0 );
+
+  /* If the iterator is in the error-state, return immediately. */
+  if( p->rc!=SQLITE_OK ) return p->rc;
+
+  /* Free the current contents of p->apValue[], if any. */
+  if( p->apValue ){
+    for(i=0; i<p->nCol*2; i++){
+      sqlite3ValueFree(p->apValue[i]);
+    }
+    memset(p->apValue, 0, sizeof(sqlite3_value*)*p->nCol*2);
+  }
+
+  /* Make sure the buffer contains at least 10 bytes of input data, or all
+  ** remaining data if there are less than 10 bytes available. This is
+  ** sufficient either for the 'T' or 'P' byte and the varint that follows
+  ** it, or for the two single byte values otherwise. */
+  p->rc = sessionInputBuffer(&p->in, 2);
+  if( p->rc!=SQLITE_OK ) return p->rc;
+
+  sessionDiscardData(&p->in);
+  p->in.iCurrent = p->in.iNext;
+
+  /* If the iterator is already at the end of the changeset, return DONE. */
+  if( p->in.iNext>=p->in.nData ){
+    return SQLITE_DONE;
+  }
+
+  op = p->in.aData[p->in.iNext++];
+  while( op=='T' || op=='P' ){
+    if( pbNew ) *pbNew = 1;
+    p->bPatchset = (op=='P');
+    if( sessionChangesetReadTblhdr(p) ) return p->rc;
+    if( (p->rc = sessionInputBuffer(&p->in, 2)) ) return p->rc;
+    p->in.iCurrent = p->in.iNext;
+    if( p->in.iNext>=p->in.nData ) return SQLITE_DONE;
+    op = p->in.aData[p->in.iNext++];
+  }
+
+  if( p->zTab==0 || (p->bPatchset && p->bInvert) ){
+    /* The first record in the changeset is not a table header. Must be a
+    ** corrupt changeset. */
+    assert( p->in.iNext==1 || p->zTab );
+    return (p->rc = SQLITE_CORRUPT_BKPT);
+  }
+
+  p->op = op;
+  p->bIndirect = p->in.aData[p->in.iNext++];
+  if( p->op!=SQLITE_UPDATE && p->op!=SQLITE_DELETE && p->op!=SQLITE_INSERT ){
+    return (p->rc = SQLITE_CORRUPT_BKPT);
+  }
+
+  if( paRec ){ 
+    int nVal;                     /* Number of values to buffer */
+    if( p->bPatchset==0 && op==SQLITE_UPDATE ){
+      nVal = p->nCol * 2;
+    }else if( p->bPatchset && op==SQLITE_DELETE ){
+      nVal = 0;
+      for(i=0; i<p->nCol; i++) if( p->abPK[i] ) nVal++;
+    }else{
+      nVal = p->nCol;
+    }
+    p->rc = sessionChangesetBufferRecord(&p->in, nVal, pnRec);
+    if( p->rc!=SQLITE_OK ) return p->rc;
+    *paRec = &p->in.aData[p->in.iNext];
+    p->in.iNext += *pnRec;
+  }else{
+    sqlite3_value **apOld = (p->bInvert ? &p->apValue[p->nCol] : p->apValue);
+    sqlite3_value **apNew = (p->bInvert ? p->apValue : &p->apValue[p->nCol]);
+
+    /* If this is an UPDATE or DELETE, read the old.* record. */
+    if( p->op!=SQLITE_INSERT && (p->bPatchset==0 || p->op==SQLITE_DELETE) ){
+      u8 *abPK = p->bPatchset ? p->abPK : 0;
+      p->rc = sessionReadRecord(&p->in, p->nCol, abPK, apOld, 0);
+      if( p->rc!=SQLITE_OK ) return p->rc;
+    }
+
+    /* If this is an INSERT or UPDATE, read the new.* record. */
+    if( p->op!=SQLITE_DELETE ){
+      p->rc = sessionReadRecord(&p->in, p->nCol, 0, apNew, pbEmpty);
+      if( p->rc!=SQLITE_OK ) return p->rc;
+    }
+
+    if( (p->bPatchset || p->bInvert) && p->op==SQLITE_UPDATE ){
+      /* If this is an UPDATE that is part of a patchset, then all PK and
+      ** modified fields are present in the new.* record. The old.* record
+      ** is currently completely empty. This block shifts the PK fields from
+      ** new.* to old.*, to accommodate the code that reads these arrays.  */
+      for(i=0; i<p->nCol; i++){
+        assert( p->bPatchset==0 || p->apValue[i]==0 );
+        if( p->abPK[i] ){
+          assert( p->apValue[i]==0 );
+          p->apValue[i] = p->apValue[i+p->nCol];
+          if( p->apValue[i]==0 ) return (p->rc = SQLITE_CORRUPT_BKPT);
+          p->apValue[i+p->nCol] = 0;
+        }
+      }
+    }else if( p->bInvert ){
+      if( p->op==SQLITE_INSERT ) p->op = SQLITE_DELETE;
+      else if( p->op==SQLITE_DELETE ) p->op = SQLITE_INSERT;
+    }
+
+    /* If this is an UPDATE that is part of a changeset, then check that
+    ** there are no fields in the old.* record that are not (a) PK fields,
+    ** or (b) also present in the new.* record. 
+    **
+    ** Such records are technically corrupt, but the rebaser was at one
+    ** point generating them. Under most circumstances this is benign, but
+    ** can cause spurious SQLITE_RANGE errors when applying the changeset. */
+    if( p->bPatchset==0 && p->op==SQLITE_UPDATE){
+      for(i=0; i<p->nCol; i++){
+        if( p->abPK[i]==0 && p->apValue[i+p->nCol]==0 ){
+          sqlite3ValueFree(p->apValue[i]);
+          p->apValue[i] = 0;
+        }
+      }
+    }
+  }
+
+  return SQLITE_ROW;
+}
+
+/*
+** Advance the changeset iterator to the next change.
+**
+** If both paRec and pnRec are NULL, then this function works like the public
+** API sqlite3changeset_next(). If SQLITE_ROW is returned, then the
+** sqlite3changeset_new() and old() APIs may be used to query for values.
+**
+** Otherwise, if paRec and pnRec are not NULL, then a pointer to the change
+** record is written to *paRec before returning and the number of bytes in
+** the record to *pnRec.
+**
+** Either way, this function returns SQLITE_ROW if the iterator is 
+** successfully advanced to the next change in the changeset, an SQLite 
+** error code if an error occurs, or SQLITE_DONE if there are no further 
+** changes in the changeset.
+*/
+static int sessionChangesetNext(
+  sqlite3_changeset_iter *p,      /* Changeset iterator */
+  u8 **paRec,                     /* If non-NULL, store record pointer here */
+  int *pnRec,                     /* If non-NULL, store size of record here */
+  int *pbNew                      /* If non-NULL, true if new table */
+){
+  int bEmpty;
+  int rc;
+  do {
+    bEmpty = 0;
+    rc = sessionChangesetNextOne(p, paRec, pnRec, pbNew, &bEmpty);
+  }while( rc==SQLITE_ROW && p->bSkipEmpty && bEmpty);
+  return rc;
+}
+
+/*
+** Advance an iterator created by sqlite3changeset_start() to the next
+** change in the changeset. This function may return SQLITE_ROW, SQLITE_DONE
+** or SQLITE_CORRUPT.
+**
+** This function may not be called on iterators passed to a conflict handler
+** callback by changeset_apply().
+*/
+int sqlite3changeset_next(sqlite3_changeset_iter *p){
+  return sessionChangesetNext(p, 0, 0, 0);
+}
+
+/*
+** The following function extracts information on the current change
+** from a changeset iterator. It may only be called after changeset_next()
+** has returned SQLITE_ROW.
+*/
+int sqlite3changeset_op(
+  sqlite3_changeset_iter *pIter,  /* Iterator handle */
+  const char **pzTab,             /* OUT: Pointer to table name */
+  int *pnCol,                     /* OUT: Number of columns in table */
+  int *pOp,                       /* OUT: SQLITE_INSERT, DELETE or UPDATE */
+  int *pbIndirect                 /* OUT: True if change is indirect */
+){
+  *pOp = pIter->op;
+  *pnCol = pIter->nCol;
+  *pzTab = pIter->zTab;
+  if( pbIndirect ) *pbIndirect = pIter->bIndirect;
+  return SQLITE_OK;
+}
+
+/*
+** Return information regarding the PRIMARY KEY and number of columns in
+** the database table affected by the change that pIter currently points
+** to. This function may only be called after changeset_next() returns
+** SQLITE_ROW.
+*/
+int sqlite3changeset_pk(
+  sqlite3_changeset_iter *pIter,  /* Iterator object */
+  unsigned char **pabPK,          /* OUT: Array of boolean - true for PK cols */
+  int *pnCol                      /* OUT: Number of entries in output array */
+){
+  *pabPK = pIter->abPK;
+  if( pnCol ) *pnCol = pIter->nCol;
+  return SQLITE_OK;
+}
+
+/*
+** This function may only be called while the iterator is pointing to an
+** SQLITE_UPDATE or SQLITE_DELETE change (see sqlite3changeset_op()).
+** Otherwise, SQLITE_MISUSE is returned.
+**
+** It sets *ppValue to point to an sqlite3_value structure containing the
+** iVal'th value in the old.* record. Or, if that particular value is not
+** included in the record (because the change is an UPDATE and the field
+** was not modified and is not a PK column), set *ppValue to NULL.
+**
+** If value iVal is out-of-range, SQLITE_RANGE is returned and *ppValue is
+** not modified. Otherwise, SQLITE_OK.
+*/
+int sqlite3changeset_old(
+  sqlite3_changeset_iter *pIter,  /* Changeset iterator */
+  int iVal,                       /* Index of old.* value to retrieve */
+  sqlite3_value **ppValue         /* OUT: Old value (or NULL pointer) */
+){
+  if( pIter->op!=SQLITE_UPDATE && pIter->op!=SQLITE_DELETE ){
+    return SQLITE_MISUSE;
+  }
+  if( iVal<0 || iVal>=pIter->nCol ){
+    return SQLITE_RANGE;
+  }
+  *ppValue = pIter->apValue[iVal];
+  return SQLITE_OK;
+}
+
+/*
+** This function may only be called while the iterator is pointing to an
+** SQLITE_UPDATE or SQLITE_INSERT change (see sqlite3changeset_op()).
+** Otherwise, SQLITE_MISUSE is returned.
+**
+** It sets *ppValue to point to an sqlite3_value structure containing the
+** iVal'th value in the new.* record. Or, if that particular value is not
+** included in the record (because the change is an UPDATE and the field
+** was not modified), set *ppValue to NULL.
+**
+** If value iVal is out-of-range, SQLITE_RANGE is returned and *ppValue is
+** not modified. Otherwise, SQLITE_OK.
+*/
+int sqlite3changeset_new(
+  sqlite3_changeset_iter *pIter,  /* Changeset iterator */
+  int iVal,                       /* Index of new.* value to retrieve */
+  sqlite3_value **ppValue         /* OUT: New value (or NULL pointer) */
+){
+  if( pIter->op!=SQLITE_UPDATE && pIter->op!=SQLITE_INSERT ){
+    return SQLITE_MISUSE;
+  }
+  if( iVal<0 || iVal>=pIter->nCol ){
+    return SQLITE_RANGE;
+  }
+  *ppValue = pIter->apValue[pIter->nCol+iVal];
+  return SQLITE_OK;
+}
+
+/*
+** The following two macros are used internally. They are similar to the
+** sqlite3changeset_new() and sqlite3changeset_old() functions, except that
+** they omit all error checking and return a pointer to the requested value.
+*/
+#define sessionChangesetNew(pIter, iVal) (pIter)->apValue[(pIter)->nCol+(iVal)]
+#define sessionChangesetOld(pIter, iVal) (pIter)->apValue[(iVal)]
+
+/*
+** This function may only be called with a changeset iterator that has been
+** passed to an SQLITE_CHANGESET_DATA or SQLITE_CHANGESET_CONFLICT 
+** conflict-handler function. Otherwise, SQLITE_MISUSE is returned.
+**
+** If successful, *ppValue is set to point to an sqlite3_value structure
+** containing the iVal'th value of the conflicting record.
+**
+** If value iVal is out-of-range or some other error occurs, an SQLite error
+** code is returned. Otherwise, SQLITE_OK.
+*/
+int sqlite3changeset_conflict(
+  sqlite3_changeset_iter *pIter,  /* Changeset iterator */
+  int iVal,                       /* Index of conflict record value to fetch */
+  sqlite3_value **ppValue         /* OUT: Value from conflicting row */
+){
+  if( !pIter->pConflict ){
+    return SQLITE_MISUSE;
+  }
+  if( iVal<0 || iVal>=pIter->nCol ){
+    return SQLITE_RANGE;
+  }
+  *ppValue = sqlite3_column_value(pIter->pConflict, iVal);
+  return SQLITE_OK;
+}
+
+/*
+** This function may only be called with an iterator passed to an
+** SQLITE_CHANGESET_FOREIGN_KEY conflict handler callback. In this case
+** it sets the output variable to the total number of known foreign key
+** violations in the destination database and returns SQLITE_OK.
+**
+** In all other cases this function returns SQLITE_MISUSE.
+*/
+int sqlite3changeset_fk_conflicts(
+  sqlite3_changeset_iter *pIter,  /* Changeset iterator */
+  int *pnOut                      /* OUT: Number of FK violations */
+){
+  if( pIter->pConflict || pIter->apValue ){
+    return SQLITE_MISUSE;
+  }
+  *pnOut = pIter->nCol;
+  return SQLITE_OK;
+}
+
+
+/*
+** Finalize an iterator allocated with sqlite3changeset_start().
+**
+** This function may not be called on iterators passed to a conflict handler
+** callback by changeset_apply().
+*/
+int sqlite3changeset_finalize(sqlite3_changeset_iter *p){
+  int rc = SQLITE_OK;
+  if( p ){
+    int i;                        /* Used to iterate through p->apValue[] */
+    rc = p->rc;
+    if( p->apValue ){
+      for(i=0; i<p->nCol*2; i++) sqlite3ValueFree(p->apValue[i]);
+    }
+    sqlite3_free(p->tblhdr.aBuf);
+    sqlite3_free(p->in.buf.aBuf);
+    sqlite3_free(p);
+  }
+  return rc;
+}
+
+static int sessionChangesetInvert(
+  SessionInput *pInput,           /* Input changeset */
+  int (*xOutput)(void *pOut, const void *pData, int nData),
+  void *pOut,
+  int *pnInverted,                /* OUT: Number of bytes in output changeset */
+  void **ppInverted               /* OUT: Inverse of pChangeset */
+){
+  int rc = SQLITE_OK;             /* Return value */
+  SessionBuffer sOut;             /* Output buffer */
+  int nCol = 0;                   /* Number of cols in current table */
+  u8 *abPK = 0;                   /* PK array for current table */
+  sqlite3_value **apVal = 0;      /* Space for values for UPDATE inversion */
+  SessionBuffer sPK = {0, 0, 0};  /* PK array for current table */
+
+  /* Initialize the output buffer */
+  memset(&sOut, 0, sizeof(SessionBuffer));
+
+  /* Zero the output variables in case an error occurs. */
+  if( ppInverted ){
+    *ppInverted = 0;
+    *pnInverted = 0;
+  }
+
+  while( 1 ){
+    u8 eType;
+
+    /* Test for EOF. */
+    if( (rc = sessionInputBuffer(pInput, 2)) ) goto finished_invert;
+    if( pInput->iNext>=pInput->nData ) break;
+    eType = pInput->aData[pInput->iNext];
+
+    switch( eType ){
+      case 'T': {
+        /* A 'table' record consists of:
+        **
+        **   * A constant 'T' character,
+        **   * Number of columns in said table (a varint),
+        **   * An array of nCol bytes (sPK),
+        **   * A nul-terminated table name.
+        */
+        int nByte;
+        int nVar;
+        pInput->iNext++;
+        if( (rc = sessionChangesetBufferTblhdr(pInput, &nByte)) ){
+          goto finished_invert;
+        }
+        nVar = sessionVarintGet(&pInput->aData[pInput->iNext], &nCol);
+        sPK.nBuf = 0;
+        sessionAppendBlob(&sPK, &pInput->aData[pInput->iNext+nVar], nCol, &rc);
+        sessionAppendByte(&sOut, eType, &rc);
+        sessionAppendBlob(&sOut, &pInput->aData[pInput->iNext], nByte, &rc);
+        if( rc ) goto finished_invert;
+
+        pInput->iNext += nByte;
+        sqlite3_free(apVal);
+        apVal = 0;
+        abPK = sPK.aBuf;
+        break;
+      }
+
+      case SQLITE_INSERT:
+      case SQLITE_DELETE: {
+        int nByte;
+        int bIndirect = pInput->aData[pInput->iNext+1];
+        int eType2 = (eType==SQLITE_DELETE ? SQLITE_INSERT : SQLITE_DELETE);
+        pInput->iNext += 2;
+        assert( rc==SQLITE_OK );
+        rc = sessionChangesetBufferRecord(pInput, nCol, &nByte);
+        sessionAppendByte(&sOut, eType2, &rc);
+        sessionAppendByte(&sOut, bIndirect, &rc);
+        sessionAppendBlob(&sOut, &pInput->aData[pInput->iNext], nByte, &rc);
+        pInput->iNext += nByte;
+        if( rc ) goto finished_invert;
+        break;
+      }
+
+      case SQLITE_UPDATE: {
+        int iCol;
+
+        if( 0==apVal ){
+          apVal = (sqlite3_value **)sqlite3_malloc64(sizeof(apVal[0])*nCol*2);
+          if( 0==apVal ){
+            rc = SQLITE_NOMEM;
+            goto finished_invert;
+          }
+          memset(apVal, 0, sizeof(apVal[0])*nCol*2);
+        }
+
+        /* Write the header for the new UPDATE change. Same as the original. */
+        sessionAppendByte(&sOut, eType, &rc);
+        sessionAppendByte(&sOut, pInput->aData[pInput->iNext+1], &rc);
+
+        /* Read the old.* and new.* records for the update change. */
+        pInput->iNext += 2;
+        rc = sessionReadRecord(pInput, nCol, 0, &apVal[0], 0);
+        if( rc==SQLITE_OK ){
+          rc = sessionReadRecord(pInput, nCol, 0, &apVal[nCol], 0);
+        }
+
+        /* Write the new old.* record. Consists of the PK columns from the
+        ** original old.* record, and the other values from the original
+        ** new.* record. */
+        for(iCol=0; iCol<nCol; iCol++){
+          sqlite3_value *pVal = apVal[iCol + (abPK[iCol] ? 0 : nCol)];
+          sessionAppendValue(&sOut, pVal, &rc);
+        }
+
+        /* Write the new new.* record. Consists of a copy of all values
+        ** from the original old.* record, except for the PK columns, which
+        ** are set to "undefined". */
+        for(iCol=0; iCol<nCol; iCol++){
+          sqlite3_value *pVal = (abPK[iCol] ? 0 : apVal[iCol]);
+          sessionAppendValue(&sOut, pVal, &rc);
+        }
+
+        for(iCol=0; iCol<nCol*2; iCol++){
+          sqlite3ValueFree(apVal[iCol]);
+        }
+        memset(apVal, 0, sizeof(apVal[0])*nCol*2);
+        if( rc!=SQLITE_OK ){
+          goto finished_invert;
+        }
+
+        break;
+      }
+
+      default:
+        rc = SQLITE_CORRUPT_BKPT;
+        goto finished_invert;
+    }
+
+    assert( rc==SQLITE_OK );
+    if( xOutput && sOut.nBuf>=sessions_strm_chunk_size ){
+      rc = xOutput(pOut, sOut.aBuf, sOut.nBuf);
+      sOut.nBuf = 0;
+      if( rc!=SQLITE_OK ) goto finished_invert;
+    }
+  }
+
+  assert( rc==SQLITE_OK );
+  if( pnInverted && ALWAYS(ppInverted) ){
+    *pnInverted = sOut.nBuf;
+    *ppInverted = sOut.aBuf;
+    sOut.aBuf = 0;
+  }else if( sOut.nBuf>0 && ALWAYS(xOutput!=0) ){
+    rc = xOutput(pOut, sOut.aBuf, sOut.nBuf);
+  }
+
+ finished_invert:
+  sqlite3_free(sOut.aBuf);
+  sqlite3_free(apVal);
+  sqlite3_free(sPK.aBuf);
+  return rc;
+}
+
+
+/*
+** Invert a changeset object.
+*/
+int sqlite3changeset_invert(
+  int nChangeset,                 /* Number of bytes in input */
+  const void *pChangeset,         /* Input changeset */
+  int *pnInverted,                /* OUT: Number of bytes in output changeset */
+  void **ppInverted               /* OUT: Inverse of pChangeset */
+){
+  SessionInput sInput;
+
+  /* Set up the input stream */
+  memset(&sInput, 0, sizeof(SessionInput));
+  sInput.nData = nChangeset;
+  sInput.aData = (u8*)pChangeset;
+
+  return sessionChangesetInvert(&sInput, 0, 0, pnInverted, ppInverted);
+}
+
+/*
+** Streaming version of sqlite3changeset_invert().
+*/
+int sqlite3changeset_invert_strm(
+  int (*xInput)(void *pIn, void *pData, int *pnData),
+  void *pIn,
+  int (*xOutput)(void *pOut, const void *pData, int nData),
+  void *pOut
+){
+  SessionInput sInput;
+  int rc;
+
+  /* Set up the input stream */
+  memset(&sInput, 0, sizeof(SessionInput));
+  sInput.xInput = xInput;
+  sInput.pIn = pIn;
+
+  rc = sessionChangesetInvert(&sInput, xOutput, pOut, 0, 0);
+  sqlite3_free(sInput.buf.aBuf);
+  return rc;
+}
+
+
+typedef struct SessionUpdate SessionUpdate;
+struct SessionUpdate {
+  sqlite3_stmt *pStmt;
+  u32 *aMask;
+  SessionUpdate *pNext;
+};
+
+typedef struct SessionApplyCtx SessionApplyCtx;
+struct SessionApplyCtx {
+  sqlite3 *db;
+  sqlite3_stmt *pDelete;          /* DELETE statement */
+  sqlite3_stmt *pInsert;          /* INSERT statement */
+  sqlite3_stmt *pSelect;          /* SELECT statement */
+  int nCol;                       /* Size of azCol[] and abPK[] arrays */
+  const char **azCol;             /* Array of column names */
+  u8 *abPK;                       /* Boolean array - true if column is in PK */
+  u32 *aUpdateMask;               /* Used by sessionUpdateFind */
+  SessionUpdate *pUp;
+  int bStat1;                     /* True if table is sqlite_stat1 */
+  int bDeferConstraints;          /* True to defer constraints */
+  int bInvertConstraints;         /* Invert when iterating constraints buffer */
+  SessionBuffer constraints;      /* Deferred constraints are stored here */
+  SessionBuffer rebase;           /* Rebase information (if any) here */
+  u8 bRebaseStarted;              /* If table header is already in rebase */
+  u8 bRebase;                     /* True to collect rebase information */
+  u8 bIgnoreNoop;                 /* True to ignore no-op conflicts */
+  int bRowid;
+};
+
+/* Number of prepared UPDATE statements to cache. */
+#define SESSION_UPDATE_CACHE_SZ 12
+
+/*
+** Find a prepared UPDATE statement suitable for the UPDATE step currently
+** being visited by the iterator. The UPDATE is of the form:
+**
+**   UPDATE tbl SET col = ?, col2 = ? WHERE pk1 IS ? AND pk2 IS ?
+*/
+static int sessionUpdateFind(
+  sqlite3_changeset_iter *pIter,
+  SessionApplyCtx *p,
+  int bPatchset,
+  sqlite3_stmt **ppStmt
+){
+  int rc = SQLITE_OK;
+  SessionUpdate *pUp = 0;
+  int nCol = pIter->nCol;
+  int nU32 = (pIter->nCol+33)/32;
+  int ii;
+
+  if( p->aUpdateMask==0 ){
+    p->aUpdateMask = sqlite3_malloc(nU32*sizeof(u32));
+    if( p->aUpdateMask==0 ){
+      rc = SQLITE_NOMEM;
+    }
+  }
+
+  if( rc==SQLITE_OK ){
+    memset(p->aUpdateMask, 0, nU32*sizeof(u32));
+    rc = SQLITE_CORRUPT;
+    for(ii=0; ii<pIter->nCol; ii++){
+      if( sessionChangesetNew(pIter, ii) ){
+        p->aUpdateMask[ii/32] |= (1<<(ii%32));
+        rc = SQLITE_OK;
+      }
+    }
+  }
+
+  if( rc==SQLITE_OK ){
+    if( bPatchset ) p->aUpdateMask[nCol/32] |= (1<<(nCol%32));
+
+    if( p->pUp ){
+      int nUp = 0;
+      SessionUpdate **pp = &p->pUp;
+      while( 1 ){
+        nUp++;
+        if( 0==memcmp(p->aUpdateMask, (*pp)->aMask, nU32*sizeof(u32)) ){
+          pUp = *pp;
+          *pp = pUp->pNext;
+          pUp->pNext = p->pUp;
+          p->pUp = pUp;
+          break;
+        }
+
+        if( (*pp)->pNext ){
+          pp = &(*pp)->pNext;
+        }else{
+          if( nUp>=SESSION_UPDATE_CACHE_SZ ){
+            sqlite3_finalize((*pp)->pStmt);
+            sqlite3_free(*pp);
+            *pp = 0;
+          }
+          break;
+        }
+      }
+    }
+
+    if( pUp==0 ){
+      int nByte = sizeof(SessionUpdate) * nU32*sizeof(u32);
+      int bStat1 = (sqlite3_stricmp(pIter->zTab, "sqlite_stat1")==0);
+      pUp = (SessionUpdate*)sqlite3_malloc(nByte);
+      if( pUp==0 ){
+        rc = SQLITE_NOMEM;
+      }else{
+        const char *zSep = "";
+        SessionBuffer buf;
+
+        memset(&buf, 0, sizeof(buf));
+        pUp->aMask = (u32*)&pUp[1];
+        memcpy(pUp->aMask, p->aUpdateMask, nU32*sizeof(u32));
+
+        sessionAppendStr(&buf, "UPDATE main.", &rc);
+        sessionAppendIdent(&buf, pIter->zTab, &rc);
+        sessionAppendStr(&buf, " SET ", &rc);
+
+        /* Create the assignments part of the UPDATE */
+        for(ii=0; ii<pIter->nCol; ii++){
+          if( p->abPK[ii]==0 && sessionChangesetNew(pIter, ii) ){
+            sessionAppendStr(&buf, zSep, &rc);
+            sessionAppendIdent(&buf, p->azCol[ii], &rc);
+            sessionAppendStr(&buf, " = ?", &rc);
+            sessionAppendInteger(&buf, ii*2+1, &rc);
+            zSep = ", ";
+          }
+        }
+
+        /* Create the WHERE clause part of the UPDATE */
+        zSep = "";
+        sessionAppendStr(&buf, " WHERE ", &rc);
+        for(ii=0; ii<pIter->nCol; ii++){
+          if( p->abPK[ii] || (bPatchset==0 && sessionChangesetOld(pIter, ii)) ){
+            sessionAppendStr(&buf, zSep, &rc);
+            if( bStat1 && ii==1 ){
+              assert( sqlite3_stricmp(p->azCol[ii], "idx")==0 );
+              sessionAppendStr(&buf, 
+                  "idx IS CASE "
+                  "WHEN length(?4)=0 AND typeof(?4)='blob' THEN NULL "
+                  "ELSE ?4 END ", &rc
+              );
+            }else{
+              sessionAppendIdent(&buf, p->azCol[ii], &rc);
+              sessionAppendStr(&buf, " IS ?", &rc);
+              sessionAppendInteger(&buf, ii*2+2, &rc);
+            }
+            zSep = " AND ";
+          }
+        }
+
+        if( rc==SQLITE_OK ){
+          char *zSql = (char*)buf.aBuf;
+          rc = sqlite3_prepare_v2(p->db, zSql, buf.nBuf, &pUp->pStmt, 0);
+        }
+
+        if( rc!=SQLITE_OK ){
+          sqlite3_free(pUp);
+          pUp = 0;
+        }else{
+          pUp->pNext = p->pUp;
+          p->pUp = pUp;
+        }
+        sqlite3_free(buf.aBuf);
+      }
+    }
+  }
+
+  assert( (rc==SQLITE_OK)==(pUp!=0) );
+  if( pUp ){
+    *ppStmt = pUp->pStmt;
+  }else{
+    *ppStmt = 0;
+  }
+  return rc;
+}
+
+/*
+** Free all cached UPDATE statements.
+*/
+static void sessionUpdateFree(SessionApplyCtx *p){
+  SessionUpdate *pUp;
+  SessionUpdate *pNext;
+  for(pUp=p->pUp; pUp; pUp=pNext){
+    pNext = pUp->pNext;
+    sqlite3_finalize(pUp->pStmt);
+    sqlite3_free(pUp);
+  }
+  p->pUp = 0;
+  sqlite3_free(p->aUpdateMask);
+  p->aUpdateMask = 0;
+}
+
+/*
+** Formulate a statement to DELETE a row from database db. Assuming a table
+** structure like this:
+**
+**     CREATE TABLE x(a, b, c, d, PRIMARY KEY(a, c));
+**
+** The DELETE statement looks like this:
+**
+**     DELETE FROM x WHERE a = :1 AND c = :3 AND (:5 OR b IS :2 AND d IS :4)
+**
+** Variable :5 (nCol+1) is a boolean. It should be set to 0 if we require
+** matching b and d values, or 1 otherwise. The second case comes up if the
+** conflict handler is invoked with NOTFOUND and returns CHANGESET_REPLACE.
+**
+** If successful, SQLITE_OK is returned and SessionApplyCtx.pDelete is left
+** pointing to the prepared version of the SQL statement.
+*/
+static int sessionDeleteRow(
+  sqlite3 *db,                    /* Database handle */
+  const char *zTab,               /* Table name */
+  SessionApplyCtx *p              /* Session changeset-apply context */
+){
+  int i;
+  const char *zSep = "";
+  int rc = SQLITE_OK;
+  SessionBuffer buf = {0, 0, 0};
+  int nPk = 0;
+
+  sessionAppendStr(&buf, "DELETE FROM main.", &rc);
+  sessionAppendIdent(&buf, zTab, &rc);
+  sessionAppendStr(&buf, " WHERE ", &rc);
+
+  for(i=0; i<p->nCol; i++){
+    if( p->abPK[i] ){
+      nPk++;
+      sessionAppendStr(&buf, zSep, &rc);
+      sessionAppendIdent(&buf, p->azCol[i], &rc);
+      sessionAppendStr(&buf, " = ?", &rc);
+      sessionAppendInteger(&buf, i+1, &rc);
+      zSep = " AND ";
+    }
+  }
+
+  if( nPk<p->nCol ){
+    sessionAppendStr(&buf, " AND (?", &rc);
+    sessionAppendInteger(&buf, p->nCol+1, &rc);
+    sessionAppendStr(&buf, " OR ", &rc);
+
+    zSep = "";
+    for(i=0; i<p->nCol; i++){
+      if( !p->abPK[i] ){
+        sessionAppendStr(&buf, zSep, &rc);
+        sessionAppendIdent(&buf, p->azCol[i], &rc);
+        sessionAppendStr(&buf, " IS ?", &rc);
+        sessionAppendInteger(&buf, i+1, &rc);
+        zSep = "AND ";
+      }
+    }
+    sessionAppendStr(&buf, ")", &rc);
+  }
+
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_prepare_v2(db, (char *)buf.aBuf, buf.nBuf, &p->pDelete, 0);
+  }
+  sqlite3_free(buf.aBuf);
+
+  return rc;
+}
+
+/*
+** Formulate and prepare an SQL statement to query table zTab by primary
+** key. Assuming the following table structure:
+**
+**     CREATE TABLE x(a, b, c, d, PRIMARY KEY(a, c));
+**
+** The SELECT statement looks like this:
+**
+**     SELECT * FROM x WHERE a = ?1 AND c = ?3
+**
+** If successful, SQLITE_OK is returned and SessionApplyCtx.pSelect is left
+** pointing to the prepared version of the SQL statement.
+*/
+static int sessionSelectRow(
+  sqlite3 *db,                    /* Database handle */
+  const char *zTab,               /* Table name */
+  SessionApplyCtx *p              /* Session changeset-apply context */
+){
+  /* TODO */
+  return sessionSelectStmt(db, p->bIgnoreNoop,
+      "main", zTab, p->bRowid, p->nCol, p->azCol, p->abPK, &p->pSelect
+  );
+}
+
+/*
+** Formulate and prepare an INSERT statement to add a record to table zTab.
+** For example:
+**
+**     INSERT INTO main."zTab" VALUES(?1, ?2, ?3 ...);
+**
+** If successful, SQLITE_OK is returned and SessionApplyCtx.pInsert is left
+** pointing to the prepared version of the SQL statement.
+*/
+static int sessionInsertRow(
+  sqlite3 *db,                    /* Database handle */
+  const char *zTab,               /* Table name */
+  SessionApplyCtx *p              /* Session changeset-apply context */
+){
+  int rc = SQLITE_OK;
+  int i;
+  SessionBuffer buf = {0, 0, 0};
+
+  sessionAppendStr(&buf, "INSERT INTO main.", &rc);
+  sessionAppendIdent(&buf, zTab, &rc);
+  sessionAppendStr(&buf, "(", &rc);
+  for(i=0; i<p->nCol; i++){
+    if( i!=0 ) sessionAppendStr(&buf, ", ", &rc);
+    sessionAppendIdent(&buf, p->azCol[i], &rc);
+  }
+
+  sessionAppendStr(&buf, ") VALUES(?", &rc);
+  for(i=1; i<p->nCol; i++){
+    sessionAppendStr(&buf, ", ?", &rc);
+  }
+  sessionAppendStr(&buf, ")", &rc);
+
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_prepare_v2(db, (char *)buf.aBuf, buf.nBuf, &p->pInsert, 0);
+  }
+  sqlite3_free(buf.aBuf);
+  return rc;
+}
+
+static int sessionPrepare(sqlite3 *db, sqlite3_stmt **pp, const char *zSql){
+  return sqlite3_prepare_v2(db, zSql, -1, pp, 0);
+}
+
+/*
+** Prepare statements for applying changes to the sqlite_stat1 table.
+** These are similar to those created by sessionSelectRow(),
+** sessionInsertRow(), sessionUpdateRow() and sessionDeleteRow() for 
+** other tables.
+*/
+static int sessionStat1Sql(sqlite3 *db, SessionApplyCtx *p){
+  int rc = sessionSelectRow(db, "sqlite_stat1", p);
+  if( rc==SQLITE_OK ){
+    rc = sessionPrepare(db, &p->pInsert,
+        "INSERT INTO main.sqlite_stat1 VALUES(?1, "
+        "CASE WHEN length(?2)=0 AND typeof(?2)='blob' THEN NULL ELSE ?2 END, "
+        "?3)"
+    );
+  }
+  if( rc==SQLITE_OK ){
+    rc = sessionPrepare(db, &p->pDelete,
+        "DELETE FROM main.sqlite_stat1 WHERE tbl=?1 AND idx IS "
+        "CASE WHEN length(?2)=0 AND typeof(?2)='blob' THEN NULL ELSE ?2 END "
+        "AND (?4 OR stat IS ?3)"
+    );
+  }
+  return rc;
+}
+
+/*
+** A wrapper around sqlite3_bind_value() that detects an extra problem. 
+** See comments in the body of this function for details.
+*/
+static int sessionBindValue(
+  sqlite3_stmt *pStmt,            /* Statement to bind value to */
+  int i,                          /* Parameter number to bind to */
+  sqlite3_value *pVal             /* Value to bind */
+){
+  int eType = sqlite3_value_type(pVal);
+  /* COVERAGE: The (pVal->z==0) branch is never true using current versions
+  ** of SQLite. If a malloc fails in an sqlite3_value_xxx() function, either
+  ** the (pVal->z) variable remains as it was or the type of the value is
+  ** set to SQLITE_NULL.  */
+  if( (eType==SQLITE_TEXT || eType==SQLITE_BLOB) && pVal->z==0 ){
+    /* This condition occurs when an earlier OOM in a call to
+    ** sqlite3_value_text() or sqlite3_value_blob() (perhaps from within
+    ** a conflict-handler) has zeroed the pVal->z pointer. Return NOMEM. */
+    return SQLITE_NOMEM;
+  }
+  return sqlite3_bind_value(pStmt, i, pVal);
+}
+
+/*
+** Iterator pIter must point to an SQLITE_INSERT entry. This function 
+** transfers new.* values from the current iterator entry to statement
+** pStmt. The table being inserted into has nCol columns.
+**
+** New.* value $i from the iterator is bound to variable ($i+1) of 
+** statement pStmt. If parameter abPK is NULL, all values from 0 to (nCol-1)
+** are transfered to the statement. Otherwise, if abPK is not NULL, it points
+** to an array nCol elements in size. In this case only those values for 
+** which abPK[$i] is true are read from the iterator and bound to the 
+** statement.
+**
+** An SQLite error code is returned if an error occurs. Otherwise, SQLITE_OK.
+*/
+static int sessionBindRow(
+  sqlite3_changeset_iter *pIter,  /* Iterator to read values from */
+  int(*xValue)(sqlite3_changeset_iter *, int, sqlite3_value **),
+  int nCol,                       /* Number of columns */
+  u8 *abPK,                       /* If not NULL, bind only if true */
+  sqlite3_stmt *pStmt             /* Bind values to this statement */
+){
+  int i;
+  int rc = SQLITE_OK;
+
+  /* Neither sqlite3changeset_old or sqlite3changeset_new can fail if the
+  ** argument iterator points to a suitable entry. Make sure that xValue 
+  ** is one of these to guarantee that it is safe to ignore the return 
+  ** in the code below. */
+  assert( xValue==sqlite3changeset_old || xValue==sqlite3changeset_new );
+
+  for(i=0; rc==SQLITE_OK && i<nCol; i++){
+    if( !abPK || abPK[i] ){
+      sqlite3_value *pVal = 0;
+      (void)xValue(pIter, i, &pVal);
+      if( pVal==0 ){
+        /* The value in the changeset was "undefined". This indicates a
+        ** corrupt changeset blob.  */
+        rc = SQLITE_CORRUPT_BKPT;
+      }else{
+        rc = sessionBindValue(pStmt, i+1, pVal);
+      }
+    }
+  }
+  return rc;
+}
+
+/*
+** SQL statement pSelect is as generated by the sessionSelectRow() function.
+** This function binds the primary key values from the change that changeset
+** iterator pIter points to to the SELECT and attempts to seek to the table
+** entry. If a row is found, the SELECT statement left pointing at the row 
+** and SQLITE_ROW is returned. Otherwise, if no row is found and no error
+** has occured, the statement is reset and SQLITE_OK is returned. If an
+** error occurs, the statement is reset and an SQLite error code is returned.
+**
+** If this function returns SQLITE_ROW, the caller must eventually reset() 
+** statement pSelect. If any other value is returned, the statement does
+** not require a reset().
+**
+** If the iterator currently points to an INSERT record, bind values from the
+** new.* record to the SELECT statement. Or, if it points to a DELETE or
+** UPDATE, bind values from the old.* record. 
+*/
+static int sessionSeekToRow(
+  sqlite3_changeset_iter *pIter,  /* Changeset iterator */
+  SessionApplyCtx *p
+){
+  sqlite3_stmt *pSelect = p->pSelect;
+  int rc;                         /* Return code */
+  int nCol;                       /* Number of columns in table */
+  int op;                         /* Changset operation (SQLITE_UPDATE etc.) */
+  const char *zDummy;             /* Unused */
+
+  sqlite3_clear_bindings(pSelect);
+  sqlite3changeset_op(pIter, &zDummy, &nCol, &op, 0);
+  rc = sessionBindRow(pIter, 
+      op==SQLITE_INSERT ? sqlite3changeset_new : sqlite3changeset_old,
+      nCol, p->abPK, pSelect
+  );
+
+  if( op!=SQLITE_DELETE && p->bIgnoreNoop ){
+    int ii;
+    for(ii=0; rc==SQLITE_OK && ii<nCol; ii++){
+      if( p->abPK[ii]==0 ){
+        sqlite3_value *pVal = 0;
+        sqlite3changeset_new(pIter, ii, &pVal);
+        sqlite3_bind_int(pSelect, ii+1+nCol, (pVal==0));
+        if( pVal ) rc = sessionBindValue(pSelect, ii+1, pVal);
+      }
+    }
+  }
+
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_step(pSelect);
+    if( rc!=SQLITE_ROW ) rc = sqlite3_reset(pSelect);
+  }
+
+  return rc;
+}
+
+/*
+** This function is called from within sqlite3changeset_apply_v2() when
+** a conflict is encountered and resolved using conflict resolution
+** mode eType (either SQLITE_CHANGESET_OMIT or SQLITE_CHANGESET_REPLACE)..
+** It adds a conflict resolution record to the buffer in 
+** SessionApplyCtx.rebase, which will eventually be returned to the caller
+** of apply_v2() as the "rebase" buffer.
+**
+** Return SQLITE_OK if successful, or an SQLite error code otherwise.
+*/
+static int sessionRebaseAdd(
+  SessionApplyCtx *p,             /* Apply context */
+  int eType,                      /* Conflict resolution (OMIT or REPLACE) */
+  sqlite3_changeset_iter *pIter   /* Iterator pointing at current change */
+){
+  int rc = SQLITE_OK;
+  if( p->bRebase ){
+    int i;
+    int eOp = pIter->op;
+    if( p->bRebaseStarted==0 ){
+      /* Append a table-header to the rebase buffer */
+      const char *zTab = pIter->zTab;
+      sessionAppendByte(&p->rebase, 'T', &rc);
+      sessionAppendVarint(&p->rebase, p->nCol, &rc);
+      sessionAppendBlob(&p->rebase, p->abPK, p->nCol, &rc);
+      sessionAppendBlob(&p->rebase, (u8*)zTab, (int)strlen(zTab)+1, &rc);
+      p->bRebaseStarted = 1;
+    }
+
+    assert( eType==SQLITE_CHANGESET_REPLACE||eType==SQLITE_CHANGESET_OMIT );
+    assert( eOp==SQLITE_DELETE || eOp==SQLITE_INSERT || eOp==SQLITE_UPDATE );
+
+    sessionAppendByte(&p->rebase, 
+        (eOp==SQLITE_DELETE ? SQLITE_DELETE : SQLITE_INSERT), &rc
+        );
+    sessionAppendByte(&p->rebase, (eType==SQLITE_CHANGESET_REPLACE), &rc);
+    for(i=0; i<p->nCol; i++){
+      sqlite3_value *pVal = 0;
+      if( eOp==SQLITE_DELETE || (eOp==SQLITE_UPDATE && p->abPK[i]) ){
+        sqlite3changeset_old(pIter, i, &pVal);
+      }else{
+        sqlite3changeset_new(pIter, i, &pVal);
+      }
+      sessionAppendValue(&p->rebase, pVal, &rc);
+    }
+  }
+  return rc;
+}
+
+/*
+** Invoke the conflict handler for the change that the changeset iterator
+** currently points to.
+**
+** Argument eType must be either CHANGESET_DATA or CHANGESET_CONFLICT.
+** If argument pbReplace is NULL, then the type of conflict handler invoked
+** depends solely on eType, as follows:
+**
+**    eType value                 Value passed to xConflict
+**    -------------------------------------------------
+**    CHANGESET_DATA              CHANGESET_NOTFOUND
+**    CHANGESET_CONFLICT          CHANGESET_CONSTRAINT
+**
+** Or, if pbReplace is not NULL, then an attempt is made to find an existing
+** record with the same primary key as the record about to be deleted, updated
+** or inserted. If such a record can be found, it is available to the conflict
+** handler as the "conflicting" record. In this case the type of conflict
+** handler invoked is as follows:
+**
+**    eType value         PK Record found?   Value passed to xConflict
+**    ----------------------------------------------------------------
+**    CHANGESET_DATA      Yes                CHANGESET_DATA
+**    CHANGESET_DATA      No                 CHANGESET_NOTFOUND
+**    CHANGESET_CONFLICT  Yes                CHANGESET_CONFLICT
+**    CHANGESET_CONFLICT  No                 CHANGESET_CONSTRAINT
+**
+** If pbReplace is not NULL, and a record with a matching PK is found, and
+** the conflict handler function returns SQLITE_CHANGESET_REPLACE, *pbReplace
+** is set to non-zero before returning SQLITE_OK.
+**
+** If the conflict handler returns SQLITE_CHANGESET_ABORT, SQLITE_ABORT is
+** returned. Or, if the conflict handler returns an invalid value, 
+** SQLITE_MISUSE. If the conflict handler returns SQLITE_CHANGESET_OMIT,
+** this function returns SQLITE_OK.
+*/
+static int sessionConflictHandler(
+  int eType,                      /* Either CHANGESET_DATA or CONFLICT */
+  SessionApplyCtx *p,             /* changeset_apply() context */
+  sqlite3_changeset_iter *pIter,  /* Changeset iterator */
+  int(*xConflict)(void *, int, sqlite3_changeset_iter*),
+  void *pCtx,                     /* First argument for conflict handler */
+  int *pbReplace                  /* OUT: Set to true if PK row is found */
+){
+  int res = 0;                    /* Value returned by conflict handler */
+  int rc;
+  int nCol;
+  int op;
+  const char *zDummy;
+
+  sqlite3changeset_op(pIter, &zDummy, &nCol, &op, 0);
+
+  assert( eType==SQLITE_CHANGESET_CONFLICT || eType==SQLITE_CHANGESET_DATA );
+  assert( SQLITE_CHANGESET_CONFLICT+1==SQLITE_CHANGESET_CONSTRAINT );
+  assert( SQLITE_CHANGESET_DATA+1==SQLITE_CHANGESET_NOTFOUND );
+
+  /* Bind the new.* PRIMARY KEY values to the SELECT statement. */
+  if( pbReplace ){
+    rc = sessionSeekToRow(pIter, p);
+  }else{
+    rc = SQLITE_OK;
+  }
+
+  if( rc==SQLITE_ROW ){
+    /* There exists another row with the new.* primary key. */
+    if( p->bIgnoreNoop 
+     && sqlite3_column_int(p->pSelect, sqlite3_column_count(p->pSelect)-1)
+    ){
+      res = SQLITE_CHANGESET_OMIT;
+    }else{
+      pIter->pConflict = p->pSelect;
+      res = xConflict(pCtx, eType, pIter);
+      pIter->pConflict = 0;
+    }
+    rc = sqlite3_reset(p->pSelect);
+  }else if( rc==SQLITE_OK ){
+    if( p->bDeferConstraints && eType==SQLITE_CHANGESET_CONFLICT ){
+      /* Instead of invoking the conflict handler, append the change blob
+      ** to the SessionApplyCtx.constraints buffer. */
+      u8 *aBlob = &pIter->in.aData[pIter->in.iCurrent];
+      int nBlob = pIter->in.iNext - pIter->in.iCurrent;
+      sessionAppendBlob(&p->constraints, aBlob, nBlob, &rc);
+      return SQLITE_OK;
+    }else{
+      /* No other row with the new.* primary key. */
+      res = xConflict(pCtx, eType+1, pIter);
+      if( res==SQLITE_CHANGESET_REPLACE ) rc = SQLITE_MISUSE;
+    }
+  }
+
+  if( rc==SQLITE_OK ){
+    switch( res ){
+      case SQLITE_CHANGESET_REPLACE:
+        assert( pbReplace );
+        *pbReplace = 1;
+        break;
+
+      case SQLITE_CHANGESET_OMIT:
+        break;
+
+      case SQLITE_CHANGESET_ABORT:
+        rc = SQLITE_ABORT;
+        break;
+
+      default:
+        rc = SQLITE_MISUSE;
+        break;
+    }
+    if( rc==SQLITE_OK ){
+      rc = sessionRebaseAdd(p, res, pIter);
+    }
+  }
+
+  return rc;
+}
+
+/*
+** Attempt to apply the change that the iterator passed as the first argument
+** currently points to to the database. If a conflict is encountered, invoke
+** the conflict handler callback.
+**
+** If argument pbRetry is NULL, then ignore any CHANGESET_DATA conflict. If
+** one is encountered, update or delete the row with the matching primary key
+** instead. Or, if pbRetry is not NULL and a CHANGESET_DATA conflict occurs,
+** invoke the conflict handler. If it returns CHANGESET_REPLACE, set *pbRetry
+** to true before returning. In this case the caller will invoke this function
+** again, this time with pbRetry set to NULL.
+**
+** If argument pbReplace is NULL and a CHANGESET_CONFLICT conflict is 
+** encountered invoke the conflict handler with CHANGESET_CONSTRAINT instead.
+** Or, if pbReplace is not NULL, invoke it with CHANGESET_CONFLICT. If such
+** an invocation returns SQLITE_CHANGESET_REPLACE, set *pbReplace to true
+** before retrying. In this case the caller attempts to remove the conflicting
+** row before invoking this function again, this time with pbReplace set 
+** to NULL.
+**
+** If any conflict handler returns SQLITE_CHANGESET_ABORT, this function
+** returns SQLITE_ABORT. Otherwise, if no error occurs, SQLITE_OK is 
+** returned.
+*/
+static int sessionApplyOneOp(
+  sqlite3_changeset_iter *pIter,  /* Changeset iterator */
+  SessionApplyCtx *p,             /* changeset_apply() context */
+  int(*xConflict)(void *, int, sqlite3_changeset_iter *),
+  void *pCtx,                     /* First argument for the conflict handler */
+  int *pbReplace,                 /* OUT: True to remove PK row and retry */
+  int *pbRetry                    /* OUT: True to retry. */
+){
+  const char *zDummy;
+  int op;
+  int nCol;
+  int rc = SQLITE_OK;
+
+  assert( p->pDelete && p->pInsert && p->pSelect );
+  assert( p->azCol && p->abPK );
+  assert( !pbReplace || *pbReplace==0 );
+
+  sqlite3changeset_op(pIter, &zDummy, &nCol, &op, 0);
+
+  if( op==SQLITE_DELETE ){
+
+    /* Bind values to the DELETE statement. If conflict handling is required,
+    ** bind values for all columns and set bound variable (nCol+1) to true.
+    ** Or, if conflict handling is not required, bind just the PK column
+    ** values and, if it exists, set (nCol+1) to false. Conflict handling
+    ** is not required if:
+    **
+    **   * this is a patchset, or
+    **   * (pbRetry==0), or
+    **   * all columns of the table are PK columns (in this case there is
+    **     no (nCol+1) variable to bind to).
+    */
+    u8 *abPK = (pIter->bPatchset ? p->abPK : 0);
+    rc = sessionBindRow(pIter, sqlite3changeset_old, nCol, abPK, p->pDelete);
+    if( rc==SQLITE_OK && sqlite3_bind_parameter_count(p->pDelete)>nCol ){
+      rc = sqlite3_bind_int(p->pDelete, nCol+1, (pbRetry==0 || abPK));
+    }
+    if( rc!=SQLITE_OK ) return rc;
+
+    sqlite3_step(p->pDelete);
+    rc = sqlite3_reset(p->pDelete);
+    if( rc==SQLITE_OK && sqlite3_changes(p->db)==0 && p->bIgnoreNoop==0 ){
+      rc = sessionConflictHandler(
+          SQLITE_CHANGESET_DATA, p, pIter, xConflict, pCtx, pbRetry
+      );
+    }else if( (rc&0xff)==SQLITE_CONSTRAINT ){
+      rc = sessionConflictHandler(
+          SQLITE_CHANGESET_CONFLICT, p, pIter, xConflict, pCtx, 0
+      );
+    }
+
+  }else if( op==SQLITE_UPDATE ){
+    int i;
+    sqlite3_stmt *pUp = 0;
+    int bPatchset = (pbRetry==0 || pIter->bPatchset);
+
+    rc = sessionUpdateFind(pIter, p, bPatchset, &pUp);
+
+    /* Bind values to the UPDATE statement. */
+    for(i=0; rc==SQLITE_OK && i<nCol; i++){
+      sqlite3_value *pOld = sessionChangesetOld(pIter, i);
+      sqlite3_value *pNew = sessionChangesetNew(pIter, i);
+      if( p->abPK[i] || (bPatchset==0 && pOld) ){
+        rc = sessionBindValue(pUp, i*2+2, pOld);
+      }
+      if( rc==SQLITE_OK && pNew ){
+        rc = sessionBindValue(pUp, i*2+1, pNew);
+      }
+    }
+    if( rc!=SQLITE_OK ) return rc;
+
+    /* Attempt the UPDATE. In the case of a NOTFOUND or DATA conflict,
+    ** the result will be SQLITE_OK with 0 rows modified. */
+    sqlite3_step(pUp);
+    rc = sqlite3_reset(pUp);
+
+    if( rc==SQLITE_OK && sqlite3_changes(p->db)==0 ){
+      /* A NOTFOUND or DATA error. Search the table to see if it contains
+      ** a row with a matching primary key. If so, this is a DATA conflict.
+      ** Otherwise, if there is no primary key match, it is a NOTFOUND. */
+
+      rc = sessionConflictHandler(
+          SQLITE_CHANGESET_DATA, p, pIter, xConflict, pCtx, pbRetry
+      );
+
+    }else if( (rc&0xff)==SQLITE_CONSTRAINT ){
+      /* This is always a CONSTRAINT conflict. */
+      rc = sessionConflictHandler(
+          SQLITE_CHANGESET_CONFLICT, p, pIter, xConflict, pCtx, 0
+      );
+    }
+
+  }else{
+    assert( op==SQLITE_INSERT );
+    if( p->bStat1 ){
+      /* Check if there is a conflicting row. For sqlite_stat1, this needs
+      ** to be done using a SELECT, as there is no PRIMARY KEY in the 
+      ** database schema to throw an exception if a duplicate is inserted.  */
+      rc = sessionSeekToRow(pIter, p);
+      if( rc==SQLITE_ROW ){
+        rc = SQLITE_CONSTRAINT;
+        sqlite3_reset(p->pSelect);
+      }
+    }
+
+    if( rc==SQLITE_OK ){
+      rc = sessionBindRow(pIter, sqlite3changeset_new, nCol, 0, p->pInsert);
+      if( rc!=SQLITE_OK ) return rc;
+
+      sqlite3_step(p->pInsert);
+      rc = sqlite3_reset(p->pInsert);
+    }
+
+    if( (rc&0xff)==SQLITE_CONSTRAINT ){
+      rc = sessionConflictHandler(
+          SQLITE_CHANGESET_CONFLICT, p, pIter, xConflict, pCtx, pbReplace
+      );
+    }
+  }
+
+  return rc;
+}
+
+/*
+** Attempt to apply the change that the iterator passed as the first argument
+** currently points to to the database. If a conflict is encountered, invoke
+** the conflict handler callback.
+**
+** The difference between this function and sessionApplyOne() is that this
+** function handles the case where the conflict-handler is invoked and 
+** returns SQLITE_CHANGESET_REPLACE - indicating that the change should be
+** retried in some manner.
+*/
+static int sessionApplyOneWithRetry(
+  sqlite3 *db,                    /* Apply change to "main" db of this handle */
+  sqlite3_changeset_iter *pIter,  /* Changeset iterator to read change from */
+  SessionApplyCtx *pApply,        /* Apply context */
+  int(*xConflict)(void*, int, sqlite3_changeset_iter*),
+  void *pCtx                      /* First argument passed to xConflict */
+){
+  int bReplace = 0;
+  int bRetry = 0;
+  int rc;
+
+  rc = sessionApplyOneOp(pIter, pApply, xConflict, pCtx, &bReplace, &bRetry);
+  if( rc==SQLITE_OK ){
+    /* If the bRetry flag is set, the change has not been applied due to an
+    ** SQLITE_CHANGESET_DATA problem (i.e. this is an UPDATE or DELETE and
+    ** a row with the correct PK is present in the db, but one or more other
+    ** fields do not contain the expected values) and the conflict handler 
+    ** returned SQLITE_CHANGESET_REPLACE. In this case retry the operation,
+    ** but pass NULL as the final argument so that sessionApplyOneOp() ignores
+    ** the SQLITE_CHANGESET_DATA problem.  */
+    if( bRetry ){
+      assert( pIter->op==SQLITE_UPDATE || pIter->op==SQLITE_DELETE );
+      rc = sessionApplyOneOp(pIter, pApply, xConflict, pCtx, 0, 0);
+    }
+
+    /* If the bReplace flag is set, the change is an INSERT that has not
+    ** been performed because the database already contains a row with the
+    ** specified primary key and the conflict handler returned
+    ** SQLITE_CHANGESET_REPLACE. In this case remove the conflicting row
+    ** before reattempting the INSERT.  */
+    else if( bReplace ){
+      assert( pIter->op==SQLITE_INSERT );
+      rc = sqlite3_exec(db, "SAVEPOINT replace_op", 0, 0, 0);
+      if( rc==SQLITE_OK ){
+        rc = sessionBindRow(pIter, 
+            sqlite3changeset_new, pApply->nCol, pApply->abPK, pApply->pDelete);
+        sqlite3_bind_int(pApply->pDelete, pApply->nCol+1, 1);
+      }
+      if( rc==SQLITE_OK ){
+        sqlite3_step(pApply->pDelete);
+        rc = sqlite3_reset(pApply->pDelete);
+      }
+      if( rc==SQLITE_OK ){
+        rc = sessionApplyOneOp(pIter, pApply, xConflict, pCtx, 0, 0);
+      }
+      if( rc==SQLITE_OK ){
+        rc = sqlite3_exec(db, "RELEASE replace_op", 0, 0, 0);
+      }
+    }
+  }
+
+  return rc;
+}
+
+/*
+** Retry the changes accumulated in the pApply->constraints buffer.
+*/
+static int sessionRetryConstraints(
+  sqlite3 *db, 
+  int bPatchset,
+  const char *zTab,
+  SessionApplyCtx *pApply,
+  int(*xConflict)(void*, int, sqlite3_changeset_iter*),
+  void *pCtx                      /* First argument passed to xConflict */
+){
+  int rc = SQLITE_OK;
+
+  while( pApply->constraints.nBuf ){
+    sqlite3_changeset_iter *pIter2 = 0;
+    SessionBuffer cons = pApply->constraints;
+    memset(&pApply->constraints, 0, sizeof(SessionBuffer));
+
+    rc = sessionChangesetStart(
+        &pIter2, 0, 0, cons.nBuf, cons.aBuf, pApply->bInvertConstraints, 1
+    );
+    if( rc==SQLITE_OK ){
+      size_t nByte = 2*pApply->nCol*sizeof(sqlite3_value*);
+      int rc2;
+      pIter2->bPatchset = bPatchset;
+      pIter2->zTab = (char*)zTab;
+      pIter2->nCol = pApply->nCol;
+      pIter2->abPK = pApply->abPK;
+      sessionBufferGrow(&pIter2->tblhdr, nByte, &rc);
+      pIter2->apValue = (sqlite3_value**)pIter2->tblhdr.aBuf;
+      if( rc==SQLITE_OK ) memset(pIter2->apValue, 0, nByte);
+
+      while( rc==SQLITE_OK && SQLITE_ROW==sqlite3changeset_next(pIter2) ){
+        rc = sessionApplyOneWithRetry(db, pIter2, pApply, xConflict, pCtx);
+      }
+
+      rc2 = sqlite3changeset_finalize(pIter2);
+      if( rc==SQLITE_OK ) rc = rc2;
+    }
+    assert( pApply->bDeferConstraints || pApply->constraints.nBuf==0 );
+
+    sqlite3_free(cons.aBuf);
+    if( rc!=SQLITE_OK ) break;
+    if( pApply->constraints.nBuf>=cons.nBuf ){
+      /* No progress was made on the last round. */
+      pApply->bDeferConstraints = 0;
+    }
+  }
+
+  return rc;
+}
+
+/*
+** Argument pIter is a changeset iterator that has been initialized, but
+** not yet passed to sqlite3changeset_next(). This function applies the 
+** changeset to the main database attached to handle "db". The supplied
+** conflict handler callback is invoked to resolve any conflicts encountered
+** while applying the change.
+*/
+static int sessionChangesetApply(
+  sqlite3 *db,                    /* Apply change to "main" db of this handle */
+  sqlite3_changeset_iter *pIter,  /* Changeset to apply */
+  int(*xFilter)(
+    void *pCtx,                   /* Copy of sixth arg to _apply() */
+    const char *zTab              /* Table name */
+  ),
+  int(*xConflict)(
+    void *pCtx,                   /* Copy of fifth arg to _apply() */
+    int eConflict,                /* DATA, MISSING, CONFLICT, CONSTRAINT */
+    sqlite3_changeset_iter *p     /* Handle describing change and conflict */
+  ),
+  void *pCtx,                     /* First argument passed to xConflict */
+  void **ppRebase, int *pnRebase, /* OUT: Rebase information */
+  int flags                       /* SESSION_APPLY_XXX flags */
+){
+  int schemaMismatch = 0;
+  int rc = SQLITE_OK;             /* Return code */
+  const char *zTab = 0;           /* Name of current table */
+  int nTab = 0;                   /* Result of sqlite3Strlen30(zTab) */
+  SessionApplyCtx sApply;         /* changeset_apply() context object */
+  int bPatchset;
+  u64 savedFlag = db->flags & SQLITE_FkNoAction;
+
+  assert( xConflict!=0 );
+
+  sqlite3_mutex_enter(sqlite3_db_mutex(db));
+  if( flags & SQLITE_CHANGESETAPPLY_FKNOACTION ){
+    db->flags |= ((u64)SQLITE_FkNoAction);
+    db->aDb[0].pSchema->schema_cookie -= 32;
+  }
+
+  pIter->in.bNoDiscard = 1;
+  memset(&sApply, 0, sizeof(sApply));
+  sApply.bRebase = (ppRebase && pnRebase);
+  sApply.bInvertConstraints = !!(flags & SQLITE_CHANGESETAPPLY_INVERT);
+  sApply.bIgnoreNoop = !!(flags & SQLITE_CHANGESETAPPLY_IGNORENOOP);
+  if( (flags & SQLITE_CHANGESETAPPLY_NOSAVEPOINT)==0 ){
+    rc = sqlite3_exec(db, "SAVEPOINT changeset_apply", 0, 0, 0);
+  }
+  if( rc==SQLITE_OK ){
+    rc = sqlite3_exec(db, "PRAGMA defer_foreign_keys = 1", 0, 0, 0);
+  }
+  while( rc==SQLITE_OK && SQLITE_ROW==sqlite3changeset_next(pIter) ){
+    int nCol;
+    int op;
+    const char *zNew;
+    
+    sqlite3changeset_op(pIter, &zNew, &nCol, &op, 0);
+
+    if( zTab==0 || sqlite3_strnicmp(zNew, zTab, nTab+1) ){
+      u8 *abPK;
+
+      rc = sessionRetryConstraints(
+          db, pIter->bPatchset, zTab, &sApply, xConflict, pCtx
+      );
+      if( rc!=SQLITE_OK ) break;
+
+      sessionUpdateFree(&sApply);
+      sqlite3_free((char*)sApply.azCol);  /* cast works around VC++ bug */
+      sqlite3_finalize(sApply.pDelete);
+      sqlite3_finalize(sApply.pInsert);
+      sqlite3_finalize(sApply.pSelect);
+      sApply.db = db;
+      sApply.pDelete = 0;
+      sApply.pInsert = 0;
+      sApply.pSelect = 0;
+      sApply.nCol = 0;
+      sApply.azCol = 0;
+      sApply.abPK = 0;
+      sApply.bStat1 = 0;
+      sApply.bDeferConstraints = 1;
+      sApply.bRebaseStarted = 0;
+      sApply.bRowid = 0;
+      memset(&sApply.constraints, 0, sizeof(SessionBuffer));
+
+      /* If an xFilter() callback was specified, invoke it now. If the 
+      ** xFilter callback returns zero, skip this table. If it returns
+      ** non-zero, proceed. */
+      schemaMismatch = (xFilter && (0==xFilter(pCtx, zNew)));
+      if( schemaMismatch ){
+        zTab = sqlite3_mprintf("%s", zNew);
+        if( zTab==0 ){
+          rc = SQLITE_NOMEM;
+          break;
+        }
+        nTab = (int)strlen(zTab);
+        sApply.azCol = (const char **)zTab;
+      }else{
+        int nMinCol = 0;
+        int i;
+
+        sqlite3changeset_pk(pIter, &abPK, 0);
+        rc = sessionTableInfo(0, db, "main", zNew, 
+            &sApply.nCol, &zTab, &sApply.azCol, 0, &sApply.abPK, &sApply.bRowid
+        );
+        if( rc!=SQLITE_OK ) break;
+        for(i=0; i<sApply.nCol; i++){
+          if( sApply.abPK[i] ) nMinCol = i+1;
+        }
+  
+        if( sApply.nCol==0 ){
+          schemaMismatch = 1;
+          sqlite3_log(SQLITE_SCHEMA, 
+              "sqlite3changeset_apply(): no such table: %s", zTab
+          );
+        }
+        else if( sApply.nCol<nCol ){
+          schemaMismatch = 1;
+          sqlite3_log(SQLITE_SCHEMA, 
+              "sqlite3changeset_apply(): table %s has %d columns, "
+              "expected %d or more", 
+              zTab, sApply.nCol, nCol
+          );
+        }
+        else if( nCol<nMinCol || memcmp(sApply.abPK, abPK, nCol)!=0 ){
+          schemaMismatch = 1;
+          sqlite3_log(SQLITE_SCHEMA, "sqlite3changeset_apply(): "
+              "primary key mismatch for table %s", zTab
+          );
+        }
+        else{
+          sApply.nCol = nCol;
+          if( 0==sqlite3_stricmp(zTab, "sqlite_stat1") ){
+            if( (rc = sessionStat1Sql(db, &sApply) ) ){
+              break;
+            }
+            sApply.bStat1 = 1;
+          }else{
+            if( (rc = sessionSelectRow(db, zTab, &sApply))
+             || (rc = sessionDeleteRow(db, zTab, &sApply))
+             || (rc = sessionInsertRow(db, zTab, &sApply))
+            ){
+              break;
+            }
+            sApply.bStat1 = 0;
+          }
+        }
+        nTab = sqlite3Strlen30(zTab);
+      }
+    }
+
+    /* If there is a schema mismatch on the current table, proceed to the
+    ** next change. A log message has already been issued. */
+    if( schemaMismatch ) continue;
+
+    rc = sessionApplyOneWithRetry(db, pIter, &sApply, xConflict, pCtx);
+  }
+
+  bPatchset = pIter->bPatchset;
+  if( rc==SQLITE_OK ){
+    rc = sqlite3changeset_finalize(pIter);
+  }else{
+    sqlite3changeset_finalize(pIter);
+  }
+
+  if( rc==SQLITE_OK ){
+    rc = sessionRetryConstraints(db, bPatchset, zTab, &sApply, xConflict, pCtx);
+  }
+
+  if( rc==SQLITE_OK ){
+    int nFk, notUsed;
+    sqlite3_db_status(db, SQLITE_DBSTATUS_DEFERRED_FKS, &nFk, &notUsed, 0);
+    if( nFk!=0 ){
+      int res = SQLITE_CHANGESET_ABORT;
+      sqlite3_changeset_iter sIter;
+      memset(&sIter, 0, sizeof(sIter));
+      sIter.nCol = nFk;
+      res = xConflict(pCtx, SQLITE_CHANGESET_FOREIGN_KEY, &sIter);
+      if( res!=SQLITE_CHANGESET_OMIT ){
+        rc = SQLITE_CONSTRAINT;
+      }
+    }
+  }
+  sqlite3_exec(db, "PRAGMA defer_foreign_keys = 0", 0, 0, 0);
+
+  if( (flags & SQLITE_CHANGESETAPPLY_NOSAVEPOINT)==0 ){
+    if( rc==SQLITE_OK ){
+      rc = sqlite3_exec(db, "RELEASE changeset_apply", 0, 0, 0);
+    }else{
+      sqlite3_exec(db, "ROLLBACK TO changeset_apply", 0, 0, 0);
+      sqlite3_exec(db, "RELEASE changeset_apply", 0, 0, 0);
+    }
+  }
+
+  assert( sApply.bRebase || sApply.rebase.nBuf==0 );
+  if( rc==SQLITE_OK && bPatchset==0 && sApply.bRebase ){
+    *ppRebase = (void*)sApply.rebase.aBuf;
+    *pnRebase = sApply.rebase.nBuf;
+    sApply.rebase.aBuf = 0;
+  }
+  sessionUpdateFree(&sApply);
+  sqlite3_finalize(sApply.pInsert);
+  sqlite3_finalize(sApply.pDelete);
+  sqlite3_finalize(sApply.pSelect);
+  sqlite3_free((char*)sApply.azCol);  /* cast works around VC++ bug */
+  sqlite3_free((char*)sApply.constraints.aBuf);
+  sqlite3_free((char*)sApply.rebase.aBuf);
+
+  if( (flags & SQLITE_CHANGESETAPPLY_FKNOACTION) && savedFlag==0 ){
+    assert( db->flags & SQLITE_FkNoAction );
+    db->flags &= ~((u64)SQLITE_FkNoAction);
+    db->aDb[0].pSchema->schema_cookie -= 32;
+  }
+  sqlite3_mutex_leave(sqlite3_db_mutex(db));
+  return rc;
+}
+
+/*
+** Apply the changeset passed via pChangeset/nChangeset to the main 
+** database attached to handle "db".
+*/
+int sqlite3changeset_apply_v2(
+  sqlite3 *db,                    /* Apply change to "main" db of this handle */
+  int nChangeset,                 /* Size of changeset in bytes */
+  void *pChangeset,               /* Changeset blob */
+  int(*xFilter)(
+    void *pCtx,                   /* Copy of sixth arg to _apply() */
+    const char *zTab              /* Table name */
+  ),
+  int(*xConflict)(
+    void *pCtx,                   /* Copy of sixth arg to _apply() */
+    int eConflict,                /* DATA, MISSING, CONFLICT, CONSTRAINT */
+    sqlite3_changeset_iter *p     /* Handle describing change and conflict */
+  ),
+  void *pCtx,                     /* First argument passed to xConflict */
+  void **ppRebase, int *pnRebase,
+  int flags
+){
+  sqlite3_changeset_iter *pIter;  /* Iterator to skip through changeset */  
+  int bInv = !!(flags & SQLITE_CHANGESETAPPLY_INVERT);
+  int rc = sessionChangesetStart(&pIter, 0, 0, nChangeset, pChangeset, bInv, 1);
+
+  if( rc==SQLITE_OK ){
+    rc = sessionChangesetApply(
+        db, pIter, xFilter, xConflict, pCtx, ppRebase, pnRebase, flags
+    );
+  }
+
+  return rc;
+}
+
+/*
+** Apply the changeset passed via pChangeset/nChangeset to the main database
+** attached to handle "db". Invoke the supplied conflict handler callback
+** to resolve any conflicts encountered while applying the change.
+*/
+int sqlite3changeset_apply(
+  sqlite3 *db,                    /* Apply change to "main" db of this handle */
+  int nChangeset,                 /* Size of changeset in bytes */
+  void *pChangeset,               /* Changeset blob */
+  int(*xFilter)(
+    void *pCtx,                   /* Copy of sixth arg to _apply() */
+    const char *zTab              /* Table name */
+  ),
+  int(*xConflict)(
+    void *pCtx,                   /* Copy of fifth arg to _apply() */
+    int eConflict,                /* DATA, MISSING, CONFLICT, CONSTRAINT */
+    sqlite3_changeset_iter *p     /* Handle describing change and conflict */
+  ),
+  void *pCtx                      /* First argument passed to xConflict */
+){
+  return sqlite3changeset_apply_v2(
+      db, nChangeset, pChangeset, xFilter, xConflict, pCtx, 0, 0, 0
+  );
+}
+
+/*
+** Apply the changeset passed via xInput/pIn to the main database
+** attached to handle "db". Invoke the supplied conflict handler callback
+** to resolve any conflicts encountered while applying the change.
+*/
+int sqlite3changeset_apply_v2_strm(
+  sqlite3 *db,                    /* Apply change to "main" db of this handle */
+  int (*xInput)(void *pIn, void *pData, int *pnData), /* Input function */
+  void *pIn,                                          /* First arg for xInput */
+  int(*xFilter)(
+    void *pCtx,                   /* Copy of sixth arg to _apply() */
+    const char *zTab              /* Table name */
+  ),
+  int(*xConflict)(
+    void *pCtx,                   /* Copy of sixth arg to _apply() */
+    int eConflict,                /* DATA, MISSING, CONFLICT, CONSTRAINT */
+    sqlite3_changeset_iter *p     /* Handle describing change and conflict */
+  ),
+  void *pCtx,                     /* First argument passed to xConflict */
+  void **ppRebase, int *pnRebase,
+  int flags
+){
+  sqlite3_changeset_iter *pIter;  /* Iterator to skip through changeset */  
+  int bInverse = !!(flags & SQLITE_CHANGESETAPPLY_INVERT);
+  int rc = sessionChangesetStart(&pIter, xInput, pIn, 0, 0, bInverse, 1);
+  if( rc==SQLITE_OK ){
+    rc = sessionChangesetApply(
+        db, pIter, xFilter, xConflict, pCtx, ppRebase, pnRebase, flags
+    );
+  }
+  return rc;
+}
+int sqlite3changeset_apply_strm(
+  sqlite3 *db,                    /* Apply change to "main" db of this handle */
+  int (*xInput)(void *pIn, void *pData, int *pnData), /* Input function */
+  void *pIn,                                          /* First arg for xInput */
+  int(*xFilter)(
+    void *pCtx,                   /* Copy of sixth arg to _apply() */
+    const char *zTab              /* Table name */
+  ),
+  int(*xConflict)(
+    void *pCtx,                   /* Copy of sixth arg to _apply() */
+    int eConflict,                /* DATA, MISSING, CONFLICT, CONSTRAINT */
+    sqlite3_changeset_iter *p     /* Handle describing change and conflict */
+  ),
+  void *pCtx                      /* First argument passed to xConflict */
+){
+  return sqlite3changeset_apply_v2_strm(
+      db, xInput, pIn, xFilter, xConflict, pCtx, 0, 0, 0
+  );
+}
+
+/*
+** sqlite3_changegroup handle.
+*/
+struct sqlite3_changegroup {
+  int rc;                         /* Error code */
+  int bPatch;                     /* True to accumulate patchsets */
+  SessionTable *pList;            /* List of tables in current patch */
+  SessionBuffer rec;
+
+  sqlite3 *db;                    /* Configured by changegroup_schema() */
+  char *zDb;                      /* Configured by changegroup_schema() */
+};
+
+/*
+** This function is called to merge two changes to the same row together as
+** part of an sqlite3changeset_concat() operation. A new change object is
+** allocated and a pointer to it stored in *ppNew.
+*/
+static int sessionChangeMerge(
+  SessionTable *pTab,             /* Table structure */
+  int bRebase,                    /* True for a rebase hash-table */
+  int bPatchset,                  /* True for patchsets */
+  SessionChange *pExist,          /* Existing change */
+  int op2,                        /* Second change operation */
+  int bIndirect,                  /* True if second change is indirect */
+  u8 *aRec,                       /* Second change record */
+  int nRec,                       /* Number of bytes in aRec */
+  SessionChange **ppNew           /* OUT: Merged change */
+){
+  SessionChange *pNew = 0;
+  int rc = SQLITE_OK;
+  assert( aRec!=0 );
+
+  if( !pExist ){
+    pNew = (SessionChange *)sqlite3_malloc64(sizeof(SessionChange) + nRec);
+    if( !pNew ){
+      return SQLITE_NOMEM;
+    }
+    memset(pNew, 0, sizeof(SessionChange));
+    pNew->op = op2;
+    pNew->bIndirect = bIndirect;
+    pNew->aRecord = (u8*)&pNew[1];
+    if( bIndirect==0 || bRebase==0 ){
+      pNew->nRecord = nRec;
+      memcpy(pNew->aRecord, aRec, nRec);
+    }else{
+      int i;
+      u8 *pIn = aRec;
+      u8 *pOut = pNew->aRecord;
+      for(i=0; i<pTab->nCol; i++){
+        int nIn = sessionSerialLen(pIn);
+        if( *pIn==0 ){
+          *pOut++ = 0;
+        }else if( pTab->abPK[i]==0 ){
+          *pOut++ = 0xFF;
+        }else{
+          memcpy(pOut, pIn, nIn);
+          pOut += nIn;
+        }
+        pIn += nIn;
+      }
+      pNew->nRecord = pOut - pNew->aRecord;
+    }
+  }else if( bRebase ){
+    if( pExist->op==SQLITE_DELETE && pExist->bIndirect ){
+      *ppNew = pExist;
+    }else{
+      sqlite3_int64 nByte = nRec + pExist->nRecord + sizeof(SessionChange);
+      pNew = (SessionChange*)sqlite3_malloc64(nByte);
+      if( pNew==0 ){
+        rc = SQLITE_NOMEM;
+      }else{
+        int i;
+        u8 *a1 = pExist->aRecord;
+        u8 *a2 = aRec;
+        u8 *pOut;
+
+        memset(pNew, 0, nByte);
+        pNew->bIndirect = bIndirect || pExist->bIndirect;
+        pNew->op = op2;
+        pOut = pNew->aRecord = (u8*)&pNew[1];
+
+        for(i=0; i<pTab->nCol; i++){
+          int n1 = sessionSerialLen(a1);
+          int n2 = sessionSerialLen(a2);
+          if( *a1==0xFF || (pTab->abPK[i]==0 && bIndirect) ){
+            *pOut++ = 0xFF;
+          }else if( *a2==0 ){
+            memcpy(pOut, a1, n1);
+            pOut += n1;
+          }else{
+            memcpy(pOut, a2, n2);
+            pOut += n2;
+          }
+          a1 += n1;
+          a2 += n2;
+        }
+        pNew->nRecord = pOut - pNew->aRecord;
+      }
+      sqlite3_free(pExist);
+    }
+  }else{
+    int op1 = pExist->op;
+
+    /* 
+    **   op1=INSERT, op2=INSERT      ->      Unsupported. Discard op2.
+    **   op1=INSERT, op2=UPDATE      ->      INSERT.
+    **   op1=INSERT, op2=DELETE      ->      (none)
+    **
+    **   op1=UPDATE, op2=INSERT      ->      Unsupported. Discard op2.
+    **   op1=UPDATE, op2=UPDATE      ->      UPDATE.
+    **   op1=UPDATE, op2=DELETE      ->      DELETE.
+    **
+    **   op1=DELETE, op2=INSERT      ->      UPDATE.
+    **   op1=DELETE, op2=UPDATE      ->      Unsupported. Discard op2.
+    **   op1=DELETE, op2=DELETE      ->      Unsupported. Discard op2.
+    */   
+    if( (op1==SQLITE_INSERT && op2==SQLITE_INSERT)
+     || (op1==SQLITE_UPDATE && op2==SQLITE_INSERT)
+     || (op1==SQLITE_DELETE && op2==SQLITE_UPDATE)
+     || (op1==SQLITE_DELETE && op2==SQLITE_DELETE)
+    ){
+      pNew = pExist;
+    }else if( op1==SQLITE_INSERT && op2==SQLITE_DELETE ){
+      sqlite3_free(pExist);
+      assert( pNew==0 );
+    }else{
+      u8 *aExist = pExist->aRecord;
+      sqlite3_int64 nByte;
+      u8 *aCsr;
+
+      /* Allocate a new SessionChange object. Ensure that the aRecord[]
+      ** buffer of the new object is large enough to hold any record that
+      ** may be generated by combining the input records.  */
+      nByte = sizeof(SessionChange) + pExist->nRecord + nRec;
+      pNew = (SessionChange *)sqlite3_malloc64(nByte);
+      if( !pNew ){
+        sqlite3_free(pExist);
+        return SQLITE_NOMEM;
+      }
+      memset(pNew, 0, sizeof(SessionChange));
+      pNew->bIndirect = (bIndirect && pExist->bIndirect);
+      aCsr = pNew->aRecord = (u8 *)&pNew[1];
+
+      if( op1==SQLITE_INSERT ){             /* INSERT + UPDATE */
+        u8 *a1 = aRec;
+        assert( op2==SQLITE_UPDATE );
+        pNew->op = SQLITE_INSERT;
+        if( bPatchset==0 ) sessionSkipRecord(&a1, pTab->nCol);
+        sessionMergeRecord(&aCsr, pTab->nCol, aExist, a1);
+      }else if( op1==SQLITE_DELETE ){       /* DELETE + INSERT */
+        assert( op2==SQLITE_INSERT );
+        pNew->op = SQLITE_UPDATE;
+        if( bPatchset ){
+          memcpy(aCsr, aRec, nRec);
+          aCsr += nRec;
+        }else{
+          if( 0==sessionMergeUpdate(&aCsr, pTab, bPatchset, aExist, 0,aRec,0) ){
+            sqlite3_free(pNew);
+            pNew = 0;
+          }
+        }
+      }else if( op2==SQLITE_UPDATE ){       /* UPDATE + UPDATE */
+        u8 *a1 = aExist;
+        u8 *a2 = aRec;
+        assert( op1==SQLITE_UPDATE );
+        if( bPatchset==0 ){
+          sessionSkipRecord(&a1, pTab->nCol);
+          sessionSkipRecord(&a2, pTab->nCol);
+        }
+        pNew->op = SQLITE_UPDATE;
+        if( 0==sessionMergeUpdate(&aCsr, pTab, bPatchset, aRec, aExist,a1,a2) ){
+          sqlite3_free(pNew);
+          pNew = 0;
+        }
+      }else{                                /* UPDATE + DELETE */
+        assert( op1==SQLITE_UPDATE && op2==SQLITE_DELETE );
+        pNew->op = SQLITE_DELETE;
+        if( bPatchset ){
+          memcpy(aCsr, aRec, nRec);
+          aCsr += nRec;
+        }else{
+          sessionMergeRecord(&aCsr, pTab->nCol, aRec, aExist);
+        }
+      }
+
+      if( pNew ){
+        pNew->nRecord = (int)(aCsr - pNew->aRecord);
+      }
+      sqlite3_free(pExist);
+    }
+  }
+
+  *ppNew = pNew;
+  return rc;
+}
+
+/*
+** Check if a changeset entry with nCol columns and the PK array passed
+** as the final argument to this function is compatible with SessionTable
+** pTab. If so, return 1. Otherwise, if they are incompatible in some way,
+** return 0.
+*/
+static int sessionChangesetCheckCompat(
+  SessionTable *pTab,
+  int nCol,
+  u8 *abPK
+){
+  if( pTab->azCol && nCol<pTab->nCol ){
+    int ii;
+    for(ii=0; ii<pTab->nCol; ii++){
+      u8 bPK = (ii < nCol) ? abPK[ii] : 0;
+      if( pTab->abPK[ii]!=bPK ) return 0;
+    }
+    return 1;
+  }
+  return (pTab->nCol==nCol && 0==memcmp(abPK, pTab->abPK, nCol));
+}
+
+static int sessionChangesetExtendRecord(
+  sqlite3_changegroup *pGrp,
+  SessionTable *pTab, 
+  int nCol, 
+  int op, 
+  const u8 *aRec, 
+  int nRec, 
+  SessionBuffer *pOut
+){
+  int rc = SQLITE_OK;
+  int ii = 0;
+
+  assert( pTab->azCol );
+  assert( nCol<pTab->nCol );
+
+  pOut->nBuf = 0;
+  if( op==SQLITE_INSERT || (op==SQLITE_DELETE && pGrp->bPatch==0) ){
+    /* Append the missing default column values to the record. */
+    sessionAppendBlob(pOut, aRec, nRec, &rc);
+    if( rc==SQLITE_OK && pTab->pDfltStmt==0 ){
+      rc = sessionPrepareDfltStmt(pGrp->db, pTab, &pTab->pDfltStmt);
+      if( rc==SQLITE_OK && SQLITE_ROW!=sqlite3_step(pTab->pDfltStmt) ){
+        rc = sqlite3_errcode(pGrp->db);
+      }
+    }
+    for(ii=nCol; rc==SQLITE_OK && ii<pTab->nCol; ii++){
+      int eType = sqlite3_column_type(pTab->pDfltStmt, ii);
+      sessionAppendByte(pOut, eType, &rc);
+      switch( eType ){
+        case SQLITE_FLOAT:
+        case SQLITE_INTEGER: {
+          i64 iVal;
+          if( eType==SQLITE_INTEGER ){
+            iVal = sqlite3_column_int64(pTab->pDfltStmt, ii);
+          }else{
+            double rVal = sqlite3_column_int64(pTab->pDfltStmt, ii);
+            memcpy(&iVal, &rVal, sizeof(i64));
+          }
+          if( SQLITE_OK==sessionBufferGrow(pOut, 8, &rc) ){
+            sessionPutI64(&pOut->aBuf[pOut->nBuf], iVal);
+            pOut->nBuf += 8;
+          }
+          break;
+        }
+
+        case SQLITE_BLOB:
+        case SQLITE_TEXT: {
+          int n = sqlite3_column_bytes(pTab->pDfltStmt, ii);
+          sessionAppendVarint(pOut, n, &rc);
+          if( eType==SQLITE_TEXT ){
+            const u8 *z = (const u8*)sqlite3_column_text(pTab->pDfltStmt, ii);
+            sessionAppendBlob(pOut, z, n, &rc);
+          }else{
+            const u8 *z = (const u8*)sqlite3_column_blob(pTab->pDfltStmt, ii);
+            sessionAppendBlob(pOut, z, n, &rc);
+          }
+          break;
+        }
+
+        default:
+          assert( eType==SQLITE_NULL );
+          break;
+      }
+    }
+  }else if( op==SQLITE_UPDATE ){
+    /* Append missing "undefined" entries to the old.* record. And, if this
+    ** is an UPDATE, to the new.* record as well.  */
+    int iOff = 0;
+    if( pGrp->bPatch==0 ){
+      for(ii=0; ii<nCol; ii++){
+        iOff += sessionSerialLen(&aRec[iOff]);
+      }
+      sessionAppendBlob(pOut, aRec, iOff, &rc);
+      for(ii=0; ii<(pTab->nCol-nCol); ii++){
+        sessionAppendByte(pOut, 0x00, &rc);
+      }
+    }
+
+    sessionAppendBlob(pOut, &aRec[iOff], nRec-iOff, &rc);
+    for(ii=0; ii<(pTab->nCol-nCol); ii++){
+      sessionAppendByte(pOut, 0x00, &rc);
+    }
+  }else{
+    assert( op==SQLITE_DELETE && pGrp->bPatch );
+    sessionAppendBlob(pOut, aRec, nRec, &rc);
+  }
+
+  return rc;
+}
+
+/*
+** Locate or create a SessionTable object that may be used to add the
+** change currently pointed to by iterator pIter to changegroup pGrp.
+** If successful, set output variable (*ppTab) to point to the table
+** object and return SQLITE_OK. Otherwise, if some error occurs, return
+** an SQLite error code and leave (*ppTab) set to NULL.
+*/
+static int sessionChangesetFindTable(
+  sqlite3_changegroup *pGrp, 
+  const char *zTab, 
+  sqlite3_changeset_iter *pIter, 
+  SessionTable **ppTab
+){
+  int rc = SQLITE_OK;
+  SessionTable *pTab = 0;
+  int nTab = (int)strlen(zTab);
+  u8 *abPK = 0;
+  int nCol = 0;
+
+  *ppTab = 0;
+  sqlite3changeset_pk(pIter, &abPK, &nCol);
+
+  /* Search the list for an existing table */
+  for(pTab = pGrp->pList; pTab; pTab=pTab->pNext){
+    if( 0==sqlite3_strnicmp(pTab->zName, zTab, nTab+1) ) break;
+  }
+
+  /* If one was not found above, create a new table now */
+  if( !pTab ){
+    SessionTable **ppNew;
+
+    pTab = sqlite3_malloc64(sizeof(SessionTable) + nCol + nTab+1);
+    if( !pTab ){
+      return SQLITE_NOMEM;
+    }
+    memset(pTab, 0, sizeof(SessionTable));
+    pTab->nCol = nCol;
+    pTab->abPK = (u8*)&pTab[1];
+    memcpy(pTab->abPK, abPK, nCol);
+    pTab->zName = (char*)&pTab->abPK[nCol];
+    memcpy(pTab->zName, zTab, nTab+1);
+
+    if( pGrp->db ){
+      pTab->nCol = 0;
+      rc = sessionInitTable(0, pTab, pGrp->db, pGrp->zDb);
+      if( rc ){
+        assert( pTab->azCol==0 );
+        sqlite3_free(pTab);
+        return rc;
+      }
+    }
+
+    /* The new object must be linked on to the end of the list, not
+    ** simply added to the start of it. This is to ensure that the
+    ** tables within the output of sqlite3changegroup_output() are in 
+    ** the right order.  */
+    for(ppNew=&pGrp->pList; *ppNew; ppNew=&(*ppNew)->pNext);
+    *ppNew = pTab;
+  }
+
+  /* Check that the table is compatible. */
+  if( !sessionChangesetCheckCompat(pTab, nCol, abPK) ){
+    rc = SQLITE_SCHEMA;
+  }
+
+  *ppTab = pTab;
+  return rc;
+}
+
+/*
+** Add the change currently indicated by iterator pIter to the hash table
+** belonging to changegroup pGrp.
+*/
+static int sessionOneChangeToHash(
+  sqlite3_changegroup *pGrp,
+  sqlite3_changeset_iter *pIter,
+  int bRebase
+){
+  int rc = SQLITE_OK;
+  int nCol = 0;
+  int op = 0;
+  int iHash = 0;
+  int bIndirect = 0;
+  SessionChange *pChange = 0;
+  SessionChange *pExist = 0;
+  SessionChange **pp = 0;
+  SessionTable *pTab = 0;
+  u8 *aRec = &pIter->in.aData[pIter->in.iCurrent + 2];
+  int nRec = (pIter->in.iNext - pIter->in.iCurrent) - 2;
+
+  assert( nRec>0 );
+
+  /* Ensure that only changesets, or only patchsets, but not a mixture
+  ** of both, are being combined. It is an error to try to combine a
+  ** changeset and a patchset.  */
+  if( pGrp->pList==0 ){
+    pGrp->bPatch = pIter->bPatchset;
+  }else if( pIter->bPatchset!=pGrp->bPatch ){
+    rc = SQLITE_ERROR;
+  }
+
+  if( rc==SQLITE_OK ){
+    const char *zTab = 0;
+    sqlite3changeset_op(pIter, &zTab, &nCol, &op, &bIndirect);
+    rc = sessionChangesetFindTable(pGrp, zTab, pIter, &pTab);
+  }
+
+  if( rc==SQLITE_OK && nCol<pTab->nCol ){
+    SessionBuffer *pBuf = &pGrp->rec;
+    rc = sessionChangesetExtendRecord(pGrp, pTab, nCol, op, aRec, nRec, pBuf);
+    aRec = pBuf->aBuf;
+    nRec = pBuf->nBuf;
+    assert( pGrp->db );
+  }
+
+  if( rc==SQLITE_OK && sessionGrowHash(0, pIter->bPatchset, pTab) ){
+    rc = SQLITE_NOMEM;
+  }
+
+  if( rc==SQLITE_OK ){
+    /* Search for existing entry. If found, remove it from the hash table. 
+    ** Code below may link it back in.  */
+    iHash = sessionChangeHash(
+        pTab, (pIter->bPatchset && op==SQLITE_DELETE), aRec, pTab->nChange
+    );
+    for(pp=&pTab->apChange[iHash]; *pp; pp=&(*pp)->pNext){
+      int bPkOnly1 = 0;
+      int bPkOnly2 = 0;
+      if( pIter->bPatchset ){
+        bPkOnly1 = (*pp)->op==SQLITE_DELETE;
+        bPkOnly2 = op==SQLITE_DELETE;
+      }
+      if( sessionChangeEqual(pTab, bPkOnly1, (*pp)->aRecord, bPkOnly2, aRec) ){
+        pExist = *pp;
+        *pp = (*pp)->pNext;
+        pTab->nEntry--;
+        break;
+      }
+    }
+  }
+
+  if( rc==SQLITE_OK ){
+    rc = sessionChangeMerge(pTab, bRebase, 
+        pIter->bPatchset, pExist, op, bIndirect, aRec, nRec, &pChange
+    );
+  }
+  if( rc==SQLITE_OK && pChange ){
+    pChange->pNext = pTab->apChange[iHash];
+    pTab->apChange[iHash] = pChange;
+    pTab->nEntry++;
+  }
+
+  if( rc==SQLITE_OK ) rc = pIter->rc;
+  return rc;
+}
+
+/*
+** Add all changes in the changeset traversed by the iterator passed as
+** the first argument to the changegroup hash tables.
+*/
+static int sessionChangesetToHash(
+  sqlite3_changeset_iter *pIter,   /* Iterator to read from */
+  sqlite3_changegroup *pGrp,       /* Changegroup object to add changeset to */
+  int bRebase                      /* True if hash table is for rebasing */
+){
+  u8 *aRec;
+  int nRec;
+  int rc = SQLITE_OK;
+
+  pIter->in.bNoDiscard = 1;
+  while( SQLITE_ROW==(sessionChangesetNext(pIter, &aRec, &nRec, 0)) ){
+    rc = sessionOneChangeToHash(pGrp, pIter, bRebase);
+    if( rc!=SQLITE_OK ) break;
+  }
+
+  if( rc==SQLITE_OK ) rc = pIter->rc;
+  return rc;
+}
+
+/*
+** Serialize a changeset (or patchset) based on all changesets (or patchsets)
+** added to the changegroup object passed as the first argument.
+**
+** If xOutput is not NULL, then the changeset/patchset is returned to the
+** user via one or more calls to xOutput, as with the other streaming
+** interfaces. 
+**
+** Or, if xOutput is NULL, then (*ppOut) is populated with a pointer to a
+** buffer containing the output changeset before this function returns. In
+** this case (*pnOut) is set to the size of the output buffer in bytes. It
+** is the responsibility of the caller to free the output buffer using
+** sqlite3_free() when it is no longer required.
+**
+** If successful, SQLITE_OK is returned. Or, if an error occurs, an SQLite
+** error code. If an error occurs and xOutput is NULL, (*ppOut) and (*pnOut)
+** are both set to 0 before returning.
+*/
+static int sessionChangegroupOutput(
+  sqlite3_changegroup *pGrp,
+  int (*xOutput)(void *pOut, const void *pData, int nData),
+  void *pOut,
+  int *pnOut,
+  void **ppOut
+){
+  int rc = SQLITE_OK;
+  SessionBuffer buf = {0, 0, 0};
+  SessionTable *pTab;
+  assert( xOutput==0 || (ppOut==0 && pnOut==0) );
+
+  /* Create the serialized output changeset based on the contents of the
+  ** hash tables attached to the SessionTable objects in list p->pList. 
+  */
+  for(pTab=pGrp->pList; rc==SQLITE_OK && pTab; pTab=pTab->pNext){
+    int i;
+    if( pTab->nEntry==0 ) continue;
+
+    sessionAppendTableHdr(&buf, pGrp->bPatch, pTab, &rc);
+    for(i=0; i<pTab->nChange; i++){
+      SessionChange *p;
+      for(p=pTab->apChange[i]; p; p=p->pNext){
+        sessionAppendByte(&buf, p->op, &rc);
+        sessionAppendByte(&buf, p->bIndirect, &rc);
+        sessionAppendBlob(&buf, p->aRecord, p->nRecord, &rc);
+        if( rc==SQLITE_OK && xOutput && buf.nBuf>=sessions_strm_chunk_size ){
+          rc = xOutput(pOut, buf.aBuf, buf.nBuf);
+          buf.nBuf = 0;
+        }
+      }
+    }
+  }
+
+  if( rc==SQLITE_OK ){
+    if( xOutput ){
+      if( buf.nBuf>0 ) rc = xOutput(pOut, buf.aBuf, buf.nBuf);
+    }else if( ppOut ){
+      *ppOut = buf.aBuf;
+      if( pnOut ) *pnOut = buf.nBuf;
+      buf.aBuf = 0;
+    }
+  }
+  sqlite3_free(buf.aBuf);
+
+  return rc;
+}
+
+/*
+** Allocate a new, empty, sqlite3_changegroup.
+*/
+int sqlite3changegroup_new(sqlite3_changegroup **pp){
+  int rc = SQLITE_OK;             /* Return code */
+  sqlite3_changegroup *p;         /* New object */
+  p = (sqlite3_changegroup*)sqlite3_malloc(sizeof(sqlite3_changegroup));
+  if( p==0 ){
+    rc = SQLITE_NOMEM;
+  }else{
+    memset(p, 0, sizeof(sqlite3_changegroup));
+  }
+  *pp = p;
+  return rc;
+}
+
+/*
+** Provide a database schema to the changegroup object.
+*/
+int sqlite3changegroup_schema(
+  sqlite3_changegroup *pGrp, 
+  sqlite3 *db, 
+  const char *zDb
+){
+  int rc = SQLITE_OK;
+
+  if( pGrp->pList || pGrp->db ){
+    /* Cannot add a schema after one or more calls to sqlite3changegroup_add(),
+    ** or after sqlite3changegroup_schema() has already been called. */
+    rc = SQLITE_MISUSE;
+  }else{
+    pGrp->zDb = sqlite3_mprintf("%s", zDb);
+    if( pGrp->zDb==0 ){
+      rc = SQLITE_NOMEM;
+    }else{
+      pGrp->db = db;
+    }
+  }
+  return rc;
+}
+
+/*
+** Add the changeset currently stored in buffer pData, size nData bytes,
+** to changeset-group p.
+*/
+int sqlite3changegroup_add(sqlite3_changegroup *pGrp, int nData, void *pData){
+  sqlite3_changeset_iter *pIter;  /* Iterator opened on pData/nData */
+  int rc;                         /* Return code */
+
+  rc = sqlite3changeset_start(&pIter, nData, pData);
+  if( rc==SQLITE_OK ){
+    rc = sessionChangesetToHash(pIter, pGrp, 0);
+  }
+  sqlite3changeset_finalize(pIter);
+  return rc;
+}
+
+/*
+** Add a single change to a changeset-group.
+*/
+int sqlite3changegroup_add_change(
+  sqlite3_changegroup *pGrp,
+  sqlite3_changeset_iter *pIter
+){
+  if( pIter->in.iCurrent==pIter->in.iNext 
+   || pIter->rc!=SQLITE_OK 
+   || pIter->bInvert
+  ){
+    /* Iterator does not point to any valid entry or is an INVERT iterator. */
+    return SQLITE_ERROR;
+  }
+  return sessionOneChangeToHash(pGrp, pIter, 0);
+}
+
+/*
+** Obtain a buffer containing a changeset representing the concatenation
+** of all changesets added to the group so far.
+*/
+int sqlite3changegroup_output(
+    sqlite3_changegroup *pGrp,
+    int *pnData,
+    void **ppData
+){
+  return sessionChangegroupOutput(pGrp, 0, 0, pnData, ppData);
+}
+
+/*
+** Streaming versions of changegroup_add().
+*/
+int sqlite3changegroup_add_strm(
+  sqlite3_changegroup *pGrp,
+  int (*xInput)(void *pIn, void *pData, int *pnData),
+  void *pIn
+){
+  sqlite3_changeset_iter *pIter;  /* Iterator opened on pData/nData */
+  int rc;                         /* Return code */
+
+  rc = sqlite3changeset_start_strm(&pIter, xInput, pIn);
+  if( rc==SQLITE_OK ){
+    rc = sessionChangesetToHash(pIter, pGrp, 0);
+  }
+  sqlite3changeset_finalize(pIter);
+  return rc;
+}
+
+/*
+** Streaming versions of changegroup_output().
+*/
+int sqlite3changegroup_output_strm(
+  sqlite3_changegroup *pGrp,
+  int (*xOutput)(void *pOut, const void *pData, int nData), 
+  void *pOut
+){
+  return sessionChangegroupOutput(pGrp, xOutput, pOut, 0, 0);
+}
+
+/*
+** Delete a changegroup object.
+*/
+void sqlite3changegroup_delete(sqlite3_changegroup *pGrp){
+  if( pGrp ){
+    sqlite3_free(pGrp->zDb);
+    sessionDeleteTable(0, pGrp->pList);
+    sqlite3_free(pGrp->rec.aBuf);
+    sqlite3_free(pGrp);
+  }
+}
+
+/* 
+** Combine two changesets together.
+*/
+int sqlite3changeset_concat(
+  int nLeft,                      /* Number of bytes in lhs input */
+  void *pLeft,                    /* Lhs input changeset */
+  int nRight                      /* Number of bytes in rhs input */,
+  void *pRight,                   /* Rhs input changeset */
+  int *pnOut,                     /* OUT: Number of bytes in output changeset */
+  void **ppOut                    /* OUT: changeset (left <concat> right) */
+){
+  sqlite3_changegroup *pGrp;
+  int rc;
+
+  rc = sqlite3changegroup_new(&pGrp);
+  if( rc==SQLITE_OK ){
+    rc = sqlite3changegroup_add(pGrp, nLeft, pLeft);
+  }
+  if( rc==SQLITE_OK ){
+    rc = sqlite3changegroup_add(pGrp, nRight, pRight);
+  }
+  if( rc==SQLITE_OK ){
+    rc = sqlite3changegroup_output(pGrp, pnOut, ppOut);
+  }
+  sqlite3changegroup_delete(pGrp);
+
+  return rc;
+}
+
+/*
+** Streaming version of sqlite3changeset_concat().
+*/
+int sqlite3changeset_concat_strm(
+  int (*xInputA)(void *pIn, void *pData, int *pnData),
+  void *pInA,
+  int (*xInputB)(void *pIn, void *pData, int *pnData),
+  void *pInB,
+  int (*xOutput)(void *pOut, const void *pData, int nData),
+  void *pOut
+){
+  sqlite3_changegroup *pGrp;
+  int rc;
+
+  rc = sqlite3changegroup_new(&pGrp);
+  if( rc==SQLITE_OK ){
+    rc = sqlite3changegroup_add_strm(pGrp, xInputA, pInA);
+  }
+  if( rc==SQLITE_OK ){
+    rc = sqlite3changegroup_add_strm(pGrp, xInputB, pInB);
+  }
+  if( rc==SQLITE_OK ){
+    rc = sqlite3changegroup_output_strm(pGrp, xOutput, pOut);
+  }
+  sqlite3changegroup_delete(pGrp);
+
+  return rc;
+}
+
+/*
+** Changeset rebaser handle.
+*/
+struct sqlite3_rebaser {
+  sqlite3_changegroup grp;        /* Hash table */
+};
+
+/*
+** Buffers a1 and a2 must both contain a sessions module record nCol
+** fields in size. This function appends an nCol sessions module 
+** record to buffer pBuf that is a copy of a1, except that for
+** each field that is undefined in a1[], swap in the field from a2[].
+*/
+static void sessionAppendRecordMerge(
+  SessionBuffer *pBuf,            /* Buffer to append to */
+  int nCol,                       /* Number of columns in each record */
+  u8 *a1, int n1,                 /* Record 1 */
+  u8 *a2, int n2,                 /* Record 2 */
+  int *pRc                        /* IN/OUT: error code */
+){
+  sessionBufferGrow(pBuf, n1+n2, pRc);
+  if( *pRc==SQLITE_OK ){
+    int i;
+    u8 *pOut = &pBuf->aBuf[pBuf->nBuf];
+    for(i=0; i<nCol; i++){
+      int nn1 = sessionSerialLen(a1);
+      int nn2 = sessionSerialLen(a2);
+      if( *a1==0 || *a1==0xFF ){
+        memcpy(pOut, a2, nn2);
+        pOut += nn2;
+      }else{
+        memcpy(pOut, a1, nn1);
+        pOut += nn1;
+      }
+      a1 += nn1;
+      a2 += nn2;
+    }
+
+    pBuf->nBuf = pOut-pBuf->aBuf;
+    assert( pBuf->nBuf<=pBuf->nAlloc );
+  }
+}
+
+/*
+** This function is called when rebasing a local UPDATE change against one 
+** or more remote UPDATE changes. The aRec/nRec buffer contains the current
+** old.* and new.* records for the change. The rebase buffer (a single
+** record) is in aChange/nChange. The rebased change is appended to buffer
+** pBuf.
+**
+** Rebasing the UPDATE involves: 
+**
+**   * Removing any changes to fields for which the corresponding field
+**     in the rebase buffer is set to "replaced" (type 0xFF). If this
+**     means the UPDATE change updates no fields, nothing is appended
+**     to the output buffer.
+**
+**   * For each field modified by the local change for which the 
+**     corresponding field in the rebase buffer is not "undefined" (0x00)
+**     or "replaced" (0xFF), the old.* value is replaced by the value
+**     in the rebase buffer.
+*/
+static void sessionAppendPartialUpdate(
+  SessionBuffer *pBuf,            /* Append record here */
+  sqlite3_changeset_iter *pIter,  /* Iterator pointed at local change */
+  u8 *aRec, int nRec,             /* Local change */
+  u8 *aChange, int nChange,       /* Record to rebase against */
+  int *pRc                        /* IN/OUT: Return Code */
+){
+  sessionBufferGrow(pBuf, 2+nRec+nChange, pRc);
+  if( *pRc==SQLITE_OK ){
+    int bData = 0;
+    u8 *pOut = &pBuf->aBuf[pBuf->nBuf];
+    int i;
+    u8 *a1 = aRec;
+    u8 *a2 = aChange;
+
+    *pOut++ = SQLITE_UPDATE;
+    *pOut++ = pIter->bIndirect;
+    for(i=0; i<pIter->nCol; i++){
+      int n1 = sessionSerialLen(a1);
+      int n2 = sessionSerialLen(a2);
+      if( pIter->abPK[i] || a2[0]==0 ){
+        if( !pIter->abPK[i] && a1[0] ) bData = 1;
+        memcpy(pOut, a1, n1);
+        pOut += n1;
+      }else if( a2[0]!=0xFF && a1[0] ){
+        bData = 1;
+        memcpy(pOut, a2, n2);
+        pOut += n2;
+      }else{
+        *pOut++ = '\0';
+      }
+      a1 += n1;
+      a2 += n2;
+    }
+    if( bData ){
+      a2 = aChange;
+      for(i=0; i<pIter->nCol; i++){
+        int n1 = sessionSerialLen(a1);
+        int n2 = sessionSerialLen(a2);
+        if( pIter->abPK[i] || a2[0]!=0xFF ){
+          memcpy(pOut, a1, n1);
+          pOut += n1;
+        }else{
+          *pOut++ = '\0';
+        }
+        a1 += n1;
+        a2 += n2;
+      }
+      pBuf->nBuf = (pOut - pBuf->aBuf);
+    }
+  }
+}
+
+/*
+** pIter is configured to iterate through a changeset. This function rebases 
+** that changeset according to the current configuration of the rebaser 
+** object passed as the first argument. If no error occurs and argument xOutput
+** is not NULL, then the changeset is returned to the caller by invoking
+** xOutput zero or more times and SQLITE_OK returned. Or, if xOutput is NULL,
+** then (*ppOut) is set to point to a buffer containing the rebased changeset
+** before this function returns. In this case (*pnOut) is set to the size of
+** the buffer in bytes.  It is the responsibility of the caller to eventually
+** free the (*ppOut) buffer using sqlite3_free(). 
+**
+** If an error occurs, an SQLite error code is returned. If ppOut and
+** pnOut are not NULL, then the two output parameters are set to 0 before
+** returning.
+*/
+static int sessionRebase(
+  sqlite3_rebaser *p,             /* Rebaser hash table */
+  sqlite3_changeset_iter *pIter,  /* Input data */
+  int (*xOutput)(void *pOut, const void *pData, int nData),
+  void *pOut,                     /* Context for xOutput callback */
+  int *pnOut,                     /* OUT: Number of bytes in output changeset */
+  void **ppOut                    /* OUT: Inverse of pChangeset */
+){
+  int rc = SQLITE_OK;
+  u8 *aRec = 0;
+  int nRec = 0;
+  int bNew = 0;
+  SessionTable *pTab = 0;
+  SessionBuffer sOut = {0,0,0};
+
+  while( SQLITE_ROW==sessionChangesetNext(pIter, &aRec, &nRec, &bNew) ){
+    SessionChange *pChange = 0;
+    int bDone = 0;
+
+    if( bNew ){
+      const char *zTab = pIter->zTab;
+      for(pTab=p->grp.pList; pTab; pTab=pTab->pNext){
+        if( 0==sqlite3_stricmp(pTab->zName, zTab) ) break;
+      }
+      bNew = 0;
+
+      /* A patchset may not be rebased */
+      if( pIter->bPatchset ){
+        rc = SQLITE_ERROR;
+      }
+
+      /* Append a table header to the output for this new table */
+      sessionAppendByte(&sOut, pIter->bPatchset ? 'P' : 'T', &rc);
+      sessionAppendVarint(&sOut, pIter->nCol, &rc);
+      sessionAppendBlob(&sOut, pIter->abPK, pIter->nCol, &rc);
+      sessionAppendBlob(&sOut,(u8*)pIter->zTab,(int)strlen(pIter->zTab)+1,&rc);
+    }
+
+    if( pTab && rc==SQLITE_OK ){
+      int iHash = sessionChangeHash(pTab, 0, aRec, pTab->nChange);
+
+      for(pChange=pTab->apChange[iHash]; pChange; pChange=pChange->pNext){
+        if( sessionChangeEqual(pTab, 0, aRec, 0, pChange->aRecord) ){
+          break;
+        }
+      }
+    }
+
+    if( pChange ){
+      assert( pChange->op==SQLITE_DELETE || pChange->op==SQLITE_INSERT );
+      switch( pIter->op ){
+        case SQLITE_INSERT:
+          if( pChange->op==SQLITE_INSERT ){
+            bDone = 1;
+            if( pChange->bIndirect==0 ){
+              sessionAppendByte(&sOut, SQLITE_UPDATE, &rc);
+              sessionAppendByte(&sOut, pIter->bIndirect, &rc);
+              sessionAppendBlob(&sOut, pChange->aRecord, pChange->nRecord, &rc);
+              sessionAppendBlob(&sOut, aRec, nRec, &rc);
+            }
+          }
+          break;
+
+        case SQLITE_UPDATE:
+          bDone = 1;
+          if( pChange->op==SQLITE_DELETE ){
+            if( pChange->bIndirect==0 ){
+              u8 *pCsr = aRec;
+              sessionSkipRecord(&pCsr, pIter->nCol);
+              sessionAppendByte(&sOut, SQLITE_INSERT, &rc);
+              sessionAppendByte(&sOut, pIter->bIndirect, &rc);
+              sessionAppendRecordMerge(&sOut, pIter->nCol,
+                  pCsr, nRec-(pCsr-aRec), 
+                  pChange->aRecord, pChange->nRecord, &rc
+              );
+            }
+          }else{
+            sessionAppendPartialUpdate(&sOut, pIter,
+                aRec, nRec, pChange->aRecord, pChange->nRecord, &rc
+            );
+          }
+          break;
+
+        default:
+          assert( pIter->op==SQLITE_DELETE );
+          bDone = 1;
+          if( pChange->op==SQLITE_INSERT ){
+            sessionAppendByte(&sOut, SQLITE_DELETE, &rc);
+            sessionAppendByte(&sOut, pIter->bIndirect, &rc);
+            sessionAppendRecordMerge(&sOut, pIter->nCol,
+                pChange->aRecord, pChange->nRecord, aRec, nRec, &rc
+            );
+          }
+          break;
+      }
+    }
+
+    if( bDone==0 ){
+      sessionAppendByte(&sOut, pIter->op, &rc);
+      sessionAppendByte(&sOut, pIter->bIndirect, &rc);
+      sessionAppendBlob(&sOut, aRec, nRec, &rc);
+    }
+    if( rc==SQLITE_OK && xOutput && sOut.nBuf>sessions_strm_chunk_size ){
+      rc = xOutput(pOut, sOut.aBuf, sOut.nBuf);
+      sOut.nBuf = 0;
+    }
+    if( rc ) break;
+  }
+
+  if( rc!=SQLITE_OK ){
+    sqlite3_free(sOut.aBuf);
+    memset(&sOut, 0, sizeof(sOut));
+  }
+
+  if( rc==SQLITE_OK ){
+    if( xOutput ){
+      if( sOut.nBuf>0 ){
+        rc = xOutput(pOut, sOut.aBuf, sOut.nBuf);
+      }
+    }else if( ppOut ){
+      *ppOut = (void*)sOut.aBuf;
+      *pnOut = sOut.nBuf;
+      sOut.aBuf = 0;
+    }
+  }
+  sqlite3_free(sOut.aBuf);
+  return rc;
+}
+
+/* 
+** Create a new rebaser object.
+*/
+int sqlite3rebaser_create(sqlite3_rebaser **ppNew){
+  int rc = SQLITE_OK;
+  sqlite3_rebaser *pNew;
+
+  pNew = sqlite3_malloc(sizeof(sqlite3_rebaser));
+  if( pNew==0 ){
+    rc = SQLITE_NOMEM;
+  }else{
+    memset(pNew, 0, sizeof(sqlite3_rebaser));
+  }
+  *ppNew = pNew;
+  return rc;
+}
+
+/* 
+** Call this one or more times to configure a rebaser.
+*/
+int sqlite3rebaser_configure(
+  sqlite3_rebaser *p, 
+  int nRebase, const void *pRebase
+){
+  sqlite3_changeset_iter *pIter = 0;   /* Iterator opened on pData/nData */
+  int rc;                              /* Return code */
+  rc = sqlite3changeset_start(&pIter, nRebase, (void*)pRebase);
+  if( rc==SQLITE_OK ){
+    rc = sessionChangesetToHash(pIter, &p->grp, 1);
+  }
+  sqlite3changeset_finalize(pIter);
+  return rc;
+}
+
+/* 
+** Rebase a changeset according to current rebaser configuration 
+*/
+int sqlite3rebaser_rebase(
+  sqlite3_rebaser *p,
+  int nIn, const void *pIn, 
+  int *pnOut, void **ppOut 
+){
+  sqlite3_changeset_iter *pIter = 0;   /* Iterator to skip through input */  
+  int rc = sqlite3changeset_start(&pIter, nIn, (void*)pIn);
+
+  if( rc==SQLITE_OK ){
+    rc = sessionRebase(p, pIter, 0, 0, pnOut, ppOut);
+    sqlite3changeset_finalize(pIter);
+  }
+
+  return rc;
+}
+
+/* 
+** Rebase a changeset according to current rebaser configuration 
+*/
+int sqlite3rebaser_rebase_strm(
+  sqlite3_rebaser *p,
+  int (*xInput)(void *pIn, void *pData, int *pnData),
+  void *pIn,
+  int (*xOutput)(void *pOut, const void *pData, int nData),
+  void *pOut
+){
+  sqlite3_changeset_iter *pIter = 0;   /* Iterator to skip through input */  
+  int rc = sqlite3changeset_start_strm(&pIter, xInput, pIn);
+
+  if( rc==SQLITE_OK ){
+    rc = sessionRebase(p, pIter, xOutput, pOut, 0, 0);
+    sqlite3changeset_finalize(pIter);
+  }
+
+  return rc;
+}
+
+/* 
+** Destroy a rebaser object 
+*/
+void sqlite3rebaser_delete(sqlite3_rebaser *p){
+  if( p ){
+    sessionDeleteTable(0, p->grp.pList);
+    sqlite3_free(p->grp.rec.aBuf);
+    sqlite3_free(p);
+  }
+}
+
+/* 
+** Global configuration
+*/
+int sqlite3session_config(int op, void *pArg){
+  int rc = SQLITE_OK;
+  switch( op ){
+    case SQLITE_SESSION_CONFIG_STRMSIZE: {
+      int *pInt = (int*)pArg;
+      if( *pInt>0 ){
+        sessions_strm_chunk_size = *pInt;
+      }
+      *pInt = sessions_strm_chunk_size;
+      break;
+    }
+    default:
+      rc = SQLITE_MISUSE;
+      break;
+  }
+  return rc;
+}
+
+#endif /* SQLITE_ENABLE_SESSION && SQLITE_ENABLE_PREUPDATE_HOOK */
diff --git a/ext/session/sqlite3session.h b/ext/session/sqlite3session.h
new file mode 100644
index 0000000000000000000000000000000000000000..f950d419b51ad0a7707f01847171831ac0da45b2
--- /dev/null
+++ b/ext/session/sqlite3session.h
@@ -0,0 +1,1828 @@
+
+#if !defined(__SQLITESESSION_H_) && defined(SQLITE_ENABLE_SESSION)
+#define __SQLITESESSION_H_ 1
+
+/*
+** Make sure we can call this stuff from C++.
+*/
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "sqlite3.h"
+
+/*
+** CAPI3REF: Session Object Handle
+**
+** An instance of this object is a [session] that can be used to
+** record changes to a database.
+*/
+typedef struct sqlite3_session sqlite3_session;
+
+/*
+** CAPI3REF: Changeset Iterator Handle
+**
+** An instance of this object acts as a cursor for iterating
+** over the elements of a [changeset] or [patchset].
+*/
+typedef struct sqlite3_changeset_iter sqlite3_changeset_iter;
+
+/*
+** CAPI3REF: Create A New Session Object
+** CONSTRUCTOR: sqlite3_session
+**
+** Create a new session object attached to database handle db. If successful,
+** a pointer to the new object is written to *ppSession and SQLITE_OK is
+** returned. If an error occurs, *ppSession is set to NULL and an SQLite
+** error code (e.g. SQLITE_NOMEM) is returned.
+**
+** It is possible to create multiple session objects attached to a single
+** database handle.
+**
+** Session objects created using this function should be deleted using the
+** [sqlite3session_delete()] function before the database handle that they
+** are attached to is itself closed. If the database handle is closed before
+** the session object is deleted, then the results of calling any session
+** module function, including [sqlite3session_delete()] on the session object
+** are undefined.
+**
+** Because the session module uses the [sqlite3_preupdate_hook()] API, it
+** is not possible for an application to register a pre-update hook on a
+** database handle that has one or more session objects attached. Nor is
+** it possible to create a session object attached to a database handle for
+** which a pre-update hook is already defined. The results of attempting 
+** either of these things are undefined.
+**
+** The session object will be used to create changesets for tables in
+** database zDb, where zDb is either "main", or "temp", or the name of an
+** attached database. It is not an error if database zDb is not attached
+** to the database when the session object is created.
+*/
+int sqlite3session_create(
+  sqlite3 *db,                    /* Database handle */
+  const char *zDb,                /* Name of db (e.g. "main") */
+  sqlite3_session **ppSession     /* OUT: New session object */
+);
+
+/*
+** CAPI3REF: Delete A Session Object
+** DESTRUCTOR: sqlite3_session
+**
+** Delete a session object previously allocated using 
+** [sqlite3session_create()]. Once a session object has been deleted, the
+** results of attempting to use pSession with any other session module
+** function are undefined.
+**
+** Session objects must be deleted before the database handle to which they
+** are attached is closed. Refer to the documentation for 
+** [sqlite3session_create()] for details.
+*/
+void sqlite3session_delete(sqlite3_session *pSession);
+
+/*
+** CAPI3REF: Configure a Session Object
+** METHOD: sqlite3_session
+**
+** This method is used to configure a session object after it has been
+** created. At present the only valid values for the second parameter are
+** [SQLITE_SESSION_OBJCONFIG_SIZE] and [SQLITE_SESSION_OBJCONFIG_ROWID].
+**
+*/
+int sqlite3session_object_config(sqlite3_session*, int op, void *pArg);
+
+/*
+** CAPI3REF: Options for sqlite3session_object_config
+**
+** The following values may passed as the the 2nd parameter to
+** sqlite3session_object_config().
+**
+** <dt>SQLITE_SESSION_OBJCONFIG_SIZE <dd>
+**   This option is used to set, clear or query the flag that enables
+**   the [sqlite3session_changeset_size()] API. Because it imposes some
+**   computational overhead, this API is disabled by default. Argument
+**   pArg must point to a value of type (int). If the value is initially
+**   0, then the sqlite3session_changeset_size() API is disabled. If it
+**   is greater than 0, then the same API is enabled. Or, if the initial
+**   value is less than zero, no change is made. In all cases the (int)
+**   variable is set to 1 if the sqlite3session_changeset_size() API is
+**   enabled following the current call, or 0 otherwise.
+**
+**   It is an error (SQLITE_MISUSE) to attempt to modify this setting after 
+**   the first table has been attached to the session object.
+**
+** <dt>SQLITE_SESSION_OBJCONFIG_ROWID <dd>
+**   This option is used to set, clear or query the flag that enables
+**   collection of data for tables with no explicit PRIMARY KEY.
+**
+**   Normally, tables with no explicit PRIMARY KEY are simply ignored
+**   by the sessions module. However, if this flag is set, it behaves
+**   as if such tables have a column "_rowid_ INTEGER PRIMARY KEY" inserted
+**   as their leftmost columns.
+**
+**   It is an error (SQLITE_MISUSE) to attempt to modify this setting after 
+**   the first table has been attached to the session object.
+*/
+#define SQLITE_SESSION_OBJCONFIG_SIZE  1
+#define SQLITE_SESSION_OBJCONFIG_ROWID 2
+
+/*
+** CAPI3REF: Enable Or Disable A Session Object
+** METHOD: sqlite3_session
+**
+** Enable or disable the recording of changes by a session object. When
+** enabled, a session object records changes made to the database. When
+** disabled - it does not. A newly created session object is enabled.
+** Refer to the documentation for [sqlite3session_changeset()] for further
+** details regarding how enabling and disabling a session object affects
+** the eventual changesets.
+**
+** Passing zero to this function disables the session. Passing a value
+** greater than zero enables it. Passing a value less than zero is a 
+** no-op, and may be used to query the current state of the session.
+**
+** The return value indicates the final state of the session object: 0 if 
+** the session is disabled, or 1 if it is enabled.
+*/
+int sqlite3session_enable(sqlite3_session *pSession, int bEnable);
+
+/*
+** CAPI3REF: Set Or Clear the Indirect Change Flag
+** METHOD: sqlite3_session
+**
+** Each change recorded by a session object is marked as either direct or
+** indirect. A change is marked as indirect if either:
+**
+** <ul>
+**   <li> The session object "indirect" flag is set when the change is
+**        made, or
+**   <li> The change is made by an SQL trigger or foreign key action 
+**        instead of directly as a result of a users SQL statement.
+** </ul>
+**
+** If a single row is affected by more than one operation within a session,
+** then the change is considered indirect if all operations meet the criteria
+** for an indirect change above, or direct otherwise.
+**
+** This function is used to set, clear or query the session object indirect
+** flag.  If the second argument passed to this function is zero, then the
+** indirect flag is cleared. If it is greater than zero, the indirect flag
+** is set. Passing a value less than zero does not modify the current value
+** of the indirect flag, and may be used to query the current state of the 
+** indirect flag for the specified session object.
+**
+** The return value indicates the final state of the indirect flag: 0 if 
+** it is clear, or 1 if it is set.
+*/
+int sqlite3session_indirect(sqlite3_session *pSession, int bIndirect);
+
+/*
+** CAPI3REF: Attach A Table To A Session Object
+** METHOD: sqlite3_session
+**
+** If argument zTab is not NULL, then it is the name of a table to attach
+** to the session object passed as the first argument. All subsequent changes 
+** made to the table while the session object is enabled will be recorded. See 
+** documentation for [sqlite3session_changeset()] for further details.
+**
+** Or, if argument zTab is NULL, then changes are recorded for all tables
+** in the database. If additional tables are added to the database (by 
+** executing "CREATE TABLE" statements) after this call is made, changes for 
+** the new tables are also recorded.
+**
+** Changes can only be recorded for tables that have a PRIMARY KEY explicitly
+** defined as part of their CREATE TABLE statement. It does not matter if the 
+** PRIMARY KEY is an "INTEGER PRIMARY KEY" (rowid alias) or not. The PRIMARY
+** KEY may consist of a single column, or may be a composite key.
+** 
+** It is not an error if the named table does not exist in the database. Nor
+** is it an error if the named table does not have a PRIMARY KEY. However,
+** no changes will be recorded in either of these scenarios.
+**
+** Changes are not recorded for individual rows that have NULL values stored
+** in one or more of their PRIMARY KEY columns.
+**
+** SQLITE_OK is returned if the call completes without error. Or, if an error 
+** occurs, an SQLite error code (e.g. SQLITE_NOMEM) is returned.
+**
+** <h3>Special sqlite_stat1 Handling</h3>
+**
+** As of SQLite version 3.22.0, the "sqlite_stat1" table is an exception to 
+** some of the rules above. In SQLite, the schema of sqlite_stat1 is:
+**  <pre>
+**  &nbsp;     CREATE TABLE sqlite_stat1(tbl,idx,stat)  
+**  </pre>
+**
+** Even though sqlite_stat1 does not have a PRIMARY KEY, changes are 
+** recorded for it as if the PRIMARY KEY is (tbl,idx). Additionally, changes 
+** are recorded for rows for which (idx IS NULL) is true. However, for such
+** rows a zero-length blob (SQL value X'') is stored in the changeset or
+** patchset instead of a NULL value. This allows such changesets to be
+** manipulated by legacy implementations of sqlite3changeset_invert(),
+** concat() and similar.
+**
+** The sqlite3changeset_apply() function automatically converts the 
+** zero-length blob back to a NULL value when updating the sqlite_stat1
+** table. However, if the application calls sqlite3changeset_new(),
+** sqlite3changeset_old() or sqlite3changeset_conflict on a changeset 
+** iterator directly (including on a changeset iterator passed to a
+** conflict-handler callback) then the X'' value is returned. The application
+** must translate X'' to NULL itself if required.
+**
+** Legacy (older than 3.22.0) versions of the sessions module cannot capture
+** changes made to the sqlite_stat1 table. Legacy versions of the
+** sqlite3changeset_apply() function silently ignore any modifications to the
+** sqlite_stat1 table that are part of a changeset or patchset.
+*/
+int sqlite3session_attach(
+  sqlite3_session *pSession,      /* Session object */
+  const char *zTab                /* Table name */
+);
+
+/*
+** CAPI3REF: Set a table filter on a Session Object.
+** METHOD: sqlite3_session
+**
+** The second argument (xFilter) is the "filter callback". For changes to rows 
+** in tables that are not attached to the Session object, the filter is called
+** to determine whether changes to the table's rows should be tracked or not. 
+** If xFilter returns 0, changes are not tracked. Note that once a table is 
+** attached, xFilter will not be called again.
+*/
+void sqlite3session_table_filter(
+  sqlite3_session *pSession,      /* Session object */
+  int(*xFilter)(
+    void *pCtx,                   /* Copy of third arg to _filter_table() */
+    const char *zTab              /* Table name */
+  ),
+  void *pCtx                      /* First argument passed to xFilter */
+);
+
+/*
+** CAPI3REF: Generate A Changeset From A Session Object
+** METHOD: sqlite3_session
+**
+** Obtain a changeset containing changes to the tables attached to the 
+** session object passed as the first argument. If successful, 
+** set *ppChangeset to point to a buffer containing the changeset 
+** and *pnChangeset to the size of the changeset in bytes before returning
+** SQLITE_OK. If an error occurs, set both *ppChangeset and *pnChangeset to
+** zero and return an SQLite error code.
+**
+** A changeset consists of zero or more INSERT, UPDATE and/or DELETE changes,
+** each representing a change to a single row of an attached table. An INSERT
+** change contains the values of each field of a new database row. A DELETE
+** contains the original values of each field of a deleted database row. An
+** UPDATE change contains the original values of each field of an updated
+** database row along with the updated values for each updated non-primary-key
+** column. It is not possible for an UPDATE change to represent a change that
+** modifies the values of primary key columns. If such a change is made, it
+** is represented in a changeset as a DELETE followed by an INSERT.
+**
+** Changes are not recorded for rows that have NULL values stored in one or 
+** more of their PRIMARY KEY columns. If such a row is inserted or deleted,
+** no corresponding change is present in the changesets returned by this
+** function. If an existing row with one or more NULL values stored in
+** PRIMARY KEY columns is updated so that all PRIMARY KEY columns are non-NULL,
+** only an INSERT is appears in the changeset. Similarly, if an existing row
+** with non-NULL PRIMARY KEY values is updated so that one or more of its
+** PRIMARY KEY columns are set to NULL, the resulting changeset contains a
+** DELETE change only.
+**
+** The contents of a changeset may be traversed using an iterator created
+** using the [sqlite3changeset_start()] API. A changeset may be applied to
+** a database with a compatible schema using the [sqlite3changeset_apply()]
+** API.
+**
+** Within a changeset generated by this function, all changes related to a
+** single table are grouped together. In other words, when iterating through
+** a changeset or when applying a changeset to a database, all changes related
+** to a single table are processed before moving on to the next table. Tables
+** are sorted in the same order in which they were attached (or auto-attached)
+** to the sqlite3_session object. The order in which the changes related to
+** a single table are stored is undefined.
+**
+** Following a successful call to this function, it is the responsibility of
+** the caller to eventually free the buffer that *ppChangeset points to using
+** [sqlite3_free()].
+**
+** <h3>Changeset Generation</h3>
+**
+** Once a table has been attached to a session object, the session object
+** records the primary key values of all new rows inserted into the table.
+** It also records the original primary key and other column values of any
+** deleted or updated rows. For each unique primary key value, data is only
+** recorded once - the first time a row with said primary key is inserted,
+** updated or deleted in the lifetime of the session.
+**
+** There is one exception to the previous paragraph: when a row is inserted,
+** updated or deleted, if one or more of its primary key columns contain a
+** NULL value, no record of the change is made.
+**
+** The session object therefore accumulates two types of records - those
+** that consist of primary key values only (created when the user inserts
+** a new record) and those that consist of the primary key values and the
+** original values of other table columns (created when the users deletes
+** or updates a record).
+**
+** When this function is called, the requested changeset is created using
+** both the accumulated records and the current contents of the database
+** file. Specifically:
+**
+** <ul>
+**   <li> For each record generated by an insert, the database is queried
+**        for a row with a matching primary key. If one is found, an INSERT
+**        change is added to the changeset. If no such row is found, no change 
+**        is added to the changeset.
+**
+**   <li> For each record generated by an update or delete, the database is 
+**        queried for a row with a matching primary key. If such a row is
+**        found and one or more of the non-primary key fields have been
+**        modified from their original values, an UPDATE change is added to 
+**        the changeset. Or, if no such row is found in the table, a DELETE 
+**        change is added to the changeset. If there is a row with a matching
+**        primary key in the database, but all fields contain their original
+**        values, no change is added to the changeset.
+** </ul>
+**
+** This means, amongst other things, that if a row is inserted and then later
+** deleted while a session object is active, neither the insert nor the delete
+** will be present in the changeset. Or if a row is deleted and then later a 
+** row with the same primary key values inserted while a session object is
+** active, the resulting changeset will contain an UPDATE change instead of
+** a DELETE and an INSERT.
+**
+** When a session object is disabled (see the [sqlite3session_enable()] API),
+** it does not accumulate records when rows are inserted, updated or deleted.
+** This may appear to have some counter-intuitive effects if a single row
+** is written to more than once during a session. For example, if a row
+** is inserted while a session object is enabled, then later deleted while 
+** the same session object is disabled, no INSERT record will appear in the
+** changeset, even though the delete took place while the session was disabled.
+** Or, if one field of a row is updated while a session is disabled, and 
+** another field of the same row is updated while the session is enabled, the
+** resulting changeset will contain an UPDATE change that updates both fields.
+*/
+int sqlite3session_changeset(
+  sqlite3_session *pSession,      /* Session object */
+  int *pnChangeset,               /* OUT: Size of buffer at *ppChangeset */
+  void **ppChangeset              /* OUT: Buffer containing changeset */
+);
+
+/*
+** CAPI3REF: Return An Upper-limit For The Size Of The Changeset
+** METHOD: sqlite3_session
+**
+** By default, this function always returns 0. For it to return
+** a useful result, the sqlite3_session object must have been configured
+** to enable this API using sqlite3session_object_config() with the
+** SQLITE_SESSION_OBJCONFIG_SIZE verb.
+**
+** When enabled, this function returns an upper limit, in bytes, for the size 
+** of the changeset that might be produced if sqlite3session_changeset() were
+** called. The final changeset size might be equal to or smaller than the
+** size in bytes returned by this function.
+*/
+sqlite3_int64 sqlite3session_changeset_size(sqlite3_session *pSession);
+
+/*
+** CAPI3REF: Load The Difference Between Tables Into A Session
+** METHOD: sqlite3_session
+**
+** If it is not already attached to the session object passed as the first
+** argument, this function attaches table zTbl in the same manner as the
+** [sqlite3session_attach()] function. If zTbl does not exist, or if it
+** does not have a primary key, this function is a no-op (but does not return
+** an error).
+**
+** Argument zFromDb must be the name of a database ("main", "temp" etc.)
+** attached to the same database handle as the session object that contains 
+** a table compatible with the table attached to the session by this function.
+** A table is considered compatible if it:
+**
+** <ul>
+**   <li> Has the same name,
+**   <li> Has the same set of columns declared in the same order, and
+**   <li> Has the same PRIMARY KEY definition.
+** </ul>
+**
+** If the tables are not compatible, SQLITE_SCHEMA is returned. If the tables
+** are compatible but do not have any PRIMARY KEY columns, it is not an error
+** but no changes are added to the session object. As with other session
+** APIs, tables without PRIMARY KEYs are simply ignored.
+**
+** This function adds a set of changes to the session object that could be
+** used to update the table in database zFrom (call this the "from-table") 
+** so that its content is the same as the table attached to the session 
+** object (call this the "to-table"). Specifically:
+**
+** <ul>
+**   <li> For each row (primary key) that exists in the to-table but not in 
+**     the from-table, an INSERT record is added to the session object.
+**
+**   <li> For each row (primary key) that exists in the to-table but not in 
+**     the from-table, a DELETE record is added to the session object.
+**
+**   <li> For each row (primary key) that exists in both tables, but features 
+**     different non-PK values in each, an UPDATE record is added to the
+**     session.  
+** </ul>
+**
+** To clarify, if this function is called and then a changeset constructed
+** using [sqlite3session_changeset()], then after applying that changeset to 
+** database zFrom the contents of the two compatible tables would be 
+** identical.
+**
+** It an error if database zFrom does not exist or does not contain the
+** required compatible table.
+**
+** If the operation is successful, SQLITE_OK is returned. Otherwise, an SQLite
+** error code. In this case, if argument pzErrMsg is not NULL, *pzErrMsg
+** may be set to point to a buffer containing an English language error 
+** message. It is the responsibility of the caller to free this buffer using
+** sqlite3_free().
+*/
+int sqlite3session_diff(
+  sqlite3_session *pSession,
+  const char *zFromDb,
+  const char *zTbl,
+  char **pzErrMsg
+);
+
+
+/*
+** CAPI3REF: Generate A Patchset From A Session Object
+** METHOD: sqlite3_session
+**
+** The differences between a patchset and a changeset are that:
+**
+** <ul>
+**   <li> DELETE records consist of the primary key fields only. The 
+**        original values of other fields are omitted.
+**   <li> The original values of any modified fields are omitted from 
+**        UPDATE records.
+** </ul>
+**
+** A patchset blob may be used with up to date versions of all 
+** sqlite3changeset_xxx API functions except for sqlite3changeset_invert(), 
+** which returns SQLITE_CORRUPT if it is passed a patchset. Similarly,
+** attempting to use a patchset blob with old versions of the
+** sqlite3changeset_xxx APIs also provokes an SQLITE_CORRUPT error. 
+**
+** Because the non-primary key "old.*" fields are omitted, no 
+** SQLITE_CHANGESET_DATA conflicts can be detected or reported if a patchset
+** is passed to the sqlite3changeset_apply() API. Other conflict types work
+** in the same way as for changesets.
+**
+** Changes within a patchset are ordered in the same way as for changesets
+** generated by the sqlite3session_changeset() function (i.e. all changes for
+** a single table are grouped together, tables appear in the order in which
+** they were attached to the session object).
+*/
+int sqlite3session_patchset(
+  sqlite3_session *pSession,      /* Session object */
+  int *pnPatchset,                /* OUT: Size of buffer at *ppPatchset */
+  void **ppPatchset               /* OUT: Buffer containing patchset */
+);
+
+/*
+** CAPI3REF: Test if a changeset has recorded any changes.
+**
+** Return non-zero if no changes to attached tables have been recorded by 
+** the session object passed as the first argument. Otherwise, if one or 
+** more changes have been recorded, return zero.
+**
+** Even if this function returns zero, it is possible that calling
+** [sqlite3session_changeset()] on the session handle may still return a
+** changeset that contains no changes. This can happen when a row in 
+** an attached table is modified and then later on the original values 
+** are restored. However, if this function returns non-zero, then it is
+** guaranteed that a call to sqlite3session_changeset() will return a 
+** changeset containing zero changes.
+*/
+int sqlite3session_isempty(sqlite3_session *pSession);
+
+/*
+** CAPI3REF: Query for the amount of heap memory used by a session object.
+**
+** This API returns the total amount of heap memory in bytes currently 
+** used by the session object passed as the only argument.
+*/
+sqlite3_int64 sqlite3session_memory_used(sqlite3_session *pSession);
+
+/*
+** CAPI3REF: Create An Iterator To Traverse A Changeset 
+** CONSTRUCTOR: sqlite3_changeset_iter
+**
+** Create an iterator used to iterate through the contents of a changeset.
+** If successful, *pp is set to point to the iterator handle and SQLITE_OK
+** is returned. Otherwise, if an error occurs, *pp is set to zero and an
+** SQLite error code is returned.
+**
+** The following functions can be used to advance and query a changeset 
+** iterator created by this function:
+**
+** <ul>
+**   <li> [sqlite3changeset_next()]
+**   <li> [sqlite3changeset_op()]
+**   <li> [sqlite3changeset_new()]
+**   <li> [sqlite3changeset_old()]
+** </ul>
+**
+** It is the responsibility of the caller to eventually destroy the iterator
+** by passing it to [sqlite3changeset_finalize()]. The buffer containing the
+** changeset (pChangeset) must remain valid until after the iterator is
+** destroyed.
+**
+** Assuming the changeset blob was created by one of the
+** [sqlite3session_changeset()], [sqlite3changeset_concat()] or
+** [sqlite3changeset_invert()] functions, all changes within the changeset 
+** that apply to a single table are grouped together. This means that when 
+** an application iterates through a changeset using an iterator created by 
+** this function, all changes that relate to a single table are visited 
+** consecutively. There is no chance that the iterator will visit a change 
+** the applies to table X, then one for table Y, and then later on visit 
+** another change for table X.
+**
+** The behavior of sqlite3changeset_start_v2() and its streaming equivalent
+** may be modified by passing a combination of
+** [SQLITE_CHANGESETSTART_INVERT | supported flags] as the 4th parameter.
+**
+** Note that the sqlite3changeset_start_v2() API is still <b>experimental</b>
+** and therefore subject to change.
+*/
+int sqlite3changeset_start(
+  sqlite3_changeset_iter **pp,    /* OUT: New changeset iterator handle */
+  int nChangeset,                 /* Size of changeset blob in bytes */
+  void *pChangeset                /* Pointer to blob containing changeset */
+);
+int sqlite3changeset_start_v2(
+  sqlite3_changeset_iter **pp,    /* OUT: New changeset iterator handle */
+  int nChangeset,                 /* Size of changeset blob in bytes */
+  void *pChangeset,               /* Pointer to blob containing changeset */
+  int flags                       /* SESSION_CHANGESETSTART_* flags */
+);
+
+/*
+** CAPI3REF: Flags for sqlite3changeset_start_v2
+**
+** The following flags may passed via the 4th parameter to
+** [sqlite3changeset_start_v2] and [sqlite3changeset_start_v2_strm]:
+**
+** <dt>SQLITE_CHANGESETAPPLY_INVERT <dd>
+**   Invert the changeset while iterating through it. This is equivalent to
+**   inverting a changeset using sqlite3changeset_invert() before applying it.
+**   It is an error to specify this flag with a patchset.
+*/
+#define SQLITE_CHANGESETSTART_INVERT        0x0002
+
+
+/*
+** CAPI3REF: Advance A Changeset Iterator
+** METHOD: sqlite3_changeset_iter
+**
+** This function may only be used with iterators created by the function
+** [sqlite3changeset_start()]. If it is called on an iterator passed to
+** a conflict-handler callback by [sqlite3changeset_apply()], SQLITE_MISUSE
+** is returned and the call has no effect.
+**
+** Immediately after an iterator is created by sqlite3changeset_start(), it
+** does not point to any change in the changeset. Assuming the changeset
+** is not empty, the first call to this function advances the iterator to
+** point to the first change in the changeset. Each subsequent call advances
+** the iterator to point to the next change in the changeset (if any). If
+** no error occurs and the iterator points to a valid change after a call
+** to sqlite3changeset_next() has advanced it, SQLITE_ROW is returned. 
+** Otherwise, if all changes in the changeset have already been visited,
+** SQLITE_DONE is returned.
+**
+** If an error occurs, an SQLite error code is returned. Possible error 
+** codes include SQLITE_CORRUPT (if the changeset buffer is corrupt) or 
+** SQLITE_NOMEM.
+*/
+int sqlite3changeset_next(sqlite3_changeset_iter *pIter);
+
+/*
+** CAPI3REF: Obtain The Current Operation From A Changeset Iterator
+** METHOD: sqlite3_changeset_iter
+**
+** The pIter argument passed to this function may either be an iterator
+** passed to a conflict-handler by [sqlite3changeset_apply()], or an iterator
+** created by [sqlite3changeset_start()]. In the latter case, the most recent
+** call to [sqlite3changeset_next()] must have returned [SQLITE_ROW]. If this
+** is not the case, this function returns [SQLITE_MISUSE].
+**
+** Arguments pOp, pnCol and pzTab may not be NULL. Upon return, three
+** outputs are set through these pointers: 
+**
+** *pOp is set to one of [SQLITE_INSERT], [SQLITE_DELETE] or [SQLITE_UPDATE],
+** depending on the type of change that the iterator currently points to;
+**
+** *pnCol is set to the number of columns in the table affected by the change; and
+**
+** *pzTab is set to point to a nul-terminated utf-8 encoded string containing
+** the name of the table affected by the current change. The buffer remains
+** valid until either sqlite3changeset_next() is called on the iterator
+** or until the conflict-handler function returns.
+**
+** If pbIndirect is not NULL, then *pbIndirect is set to true (1) if the change
+** is an indirect change, or false (0) otherwise. See the documentation for
+** [sqlite3session_indirect()] for a description of direct and indirect
+** changes.
+**
+** If no error occurs, SQLITE_OK is returned. If an error does occur, an
+** SQLite error code is returned. The values of the output variables may not
+** be trusted in this case.
+*/
+int sqlite3changeset_op(
+  sqlite3_changeset_iter *pIter,  /* Iterator object */
+  const char **pzTab,             /* OUT: Pointer to table name */
+  int *pnCol,                     /* OUT: Number of columns in table */
+  int *pOp,                       /* OUT: SQLITE_INSERT, DELETE or UPDATE */
+  int *pbIndirect                 /* OUT: True for an 'indirect' change */
+);
+
+/*
+** CAPI3REF: Obtain The Primary Key Definition Of A Table
+** METHOD: sqlite3_changeset_iter
+**
+** For each modified table, a changeset includes the following:
+**
+** <ul>
+**   <li> The number of columns in the table, and
+**   <li> Which of those columns make up the tables PRIMARY KEY.
+** </ul>
+**
+** This function is used to find which columns comprise the PRIMARY KEY of
+** the table modified by the change that iterator pIter currently points to.
+** If successful, *pabPK is set to point to an array of nCol entries, where
+** nCol is the number of columns in the table. Elements of *pabPK are set to
+** 0x01 if the corresponding column is part of the tables primary key, or
+** 0x00 if it is not.
+**
+** If argument pnCol is not NULL, then *pnCol is set to the number of columns
+** in the table.
+**
+** If this function is called when the iterator does not point to a valid
+** entry, SQLITE_MISUSE is returned and the output variables zeroed. Otherwise,
+** SQLITE_OK is returned and the output variables populated as described
+** above.
+*/
+int sqlite3changeset_pk(
+  sqlite3_changeset_iter *pIter,  /* Iterator object */
+  unsigned char **pabPK,          /* OUT: Array of boolean - true for PK cols */
+  int *pnCol                      /* OUT: Number of entries in output array */
+);
+
+/*
+** CAPI3REF: Obtain old.* Values From A Changeset Iterator
+** METHOD: sqlite3_changeset_iter
+**
+** The pIter argument passed to this function may either be an iterator
+** passed to a conflict-handler by [sqlite3changeset_apply()], or an iterator
+** created by [sqlite3changeset_start()]. In the latter case, the most recent
+** call to [sqlite3changeset_next()] must have returned SQLITE_ROW. 
+** Furthermore, it may only be called if the type of change that the iterator
+** currently points to is either [SQLITE_DELETE] or [SQLITE_UPDATE]. Otherwise,
+** this function returns [SQLITE_MISUSE] and sets *ppValue to NULL.
+**
+** Argument iVal must be greater than or equal to 0, and less than the number
+** of columns in the table affected by the current change. Otherwise,
+** [SQLITE_RANGE] is returned and *ppValue is set to NULL.
+**
+** If successful, this function sets *ppValue to point to a protected
+** sqlite3_value object containing the iVal'th value from the vector of 
+** original row values stored as part of the UPDATE or DELETE change and
+** returns SQLITE_OK. The name of the function comes from the fact that this 
+** is similar to the "old.*" columns available to update or delete triggers.
+**
+** If some other error occurs (e.g. an OOM condition), an SQLite error code
+** is returned and *ppValue is set to NULL.
+*/
+int sqlite3changeset_old(
+  sqlite3_changeset_iter *pIter,  /* Changeset iterator */
+  int iVal,                       /* Column number */
+  sqlite3_value **ppValue         /* OUT: Old value (or NULL pointer) */
+);
+
+/*
+** CAPI3REF: Obtain new.* Values From A Changeset Iterator
+** METHOD: sqlite3_changeset_iter
+**
+** The pIter argument passed to this function may either be an iterator
+** passed to a conflict-handler by [sqlite3changeset_apply()], or an iterator
+** created by [sqlite3changeset_start()]. In the latter case, the most recent
+** call to [sqlite3changeset_next()] must have returned SQLITE_ROW. 
+** Furthermore, it may only be called if the type of change that the iterator
+** currently points to is either [SQLITE_UPDATE] or [SQLITE_INSERT]. Otherwise,
+** this function returns [SQLITE_MISUSE] and sets *ppValue to NULL.
+**
+** Argument iVal must be greater than or equal to 0, and less than the number
+** of columns in the table affected by the current change. Otherwise,
+** [SQLITE_RANGE] is returned and *ppValue is set to NULL.
+**
+** If successful, this function sets *ppValue to point to a protected
+** sqlite3_value object containing the iVal'th value from the vector of 
+** new row values stored as part of the UPDATE or INSERT change and
+** returns SQLITE_OK. If the change is an UPDATE and does not include
+** a new value for the requested column, *ppValue is set to NULL and 
+** SQLITE_OK returned. The name of the function comes from the fact that 
+** this is similar to the "new.*" columns available to update or delete 
+** triggers.
+**
+** If some other error occurs (e.g. an OOM condition), an SQLite error code
+** is returned and *ppValue is set to NULL.
+*/
+int sqlite3changeset_new(
+  sqlite3_changeset_iter *pIter,  /* Changeset iterator */
+  int iVal,                       /* Column number */
+  sqlite3_value **ppValue         /* OUT: New value (or NULL pointer) */
+);
+
+/*
+** CAPI3REF: Obtain Conflicting Row Values From A Changeset Iterator
+** METHOD: sqlite3_changeset_iter
+**
+** This function should only be used with iterator objects passed to a
+** conflict-handler callback by [sqlite3changeset_apply()] with either
+** [SQLITE_CHANGESET_DATA] or [SQLITE_CHANGESET_CONFLICT]. If this function
+** is called on any other iterator, [SQLITE_MISUSE] is returned and *ppValue
+** is set to NULL.
+**
+** Argument iVal must be greater than or equal to 0, and less than the number
+** of columns in the table affected by the current change. Otherwise,
+** [SQLITE_RANGE] is returned and *ppValue is set to NULL.
+**
+** If successful, this function sets *ppValue to point to a protected
+** sqlite3_value object containing the iVal'th value from the 
+** "conflicting row" associated with the current conflict-handler callback
+** and returns SQLITE_OK.
+**
+** If some other error occurs (e.g. an OOM condition), an SQLite error code
+** is returned and *ppValue is set to NULL.
+*/
+int sqlite3changeset_conflict(
+  sqlite3_changeset_iter *pIter,  /* Changeset iterator */
+  int iVal,                       /* Column number */
+  sqlite3_value **ppValue         /* OUT: Value from conflicting row */
+);
+
+/*
+** CAPI3REF: Determine The Number Of Foreign Key Constraint Violations
+** METHOD: sqlite3_changeset_iter
+**
+** This function may only be called with an iterator passed to an
+** SQLITE_CHANGESET_FOREIGN_KEY conflict handler callback. In this case
+** it sets the output variable to the total number of known foreign key
+** violations in the destination database and returns SQLITE_OK.
+**
+** In all other cases this function returns SQLITE_MISUSE.
+*/
+int sqlite3changeset_fk_conflicts(
+  sqlite3_changeset_iter *pIter,  /* Changeset iterator */
+  int *pnOut                      /* OUT: Number of FK violations */
+);
+
+
+/*
+** CAPI3REF: Finalize A Changeset Iterator
+** METHOD: sqlite3_changeset_iter
+**
+** This function is used to finalize an iterator allocated with
+** [sqlite3changeset_start()].
+**
+** This function should only be called on iterators created using the
+** [sqlite3changeset_start()] function. If an application calls this
+** function with an iterator passed to a conflict-handler by
+** [sqlite3changeset_apply()], [SQLITE_MISUSE] is immediately returned and the
+** call has no effect.
+**
+** If an error was encountered within a call to an sqlite3changeset_xxx()
+** function (for example an [SQLITE_CORRUPT] in [sqlite3changeset_next()] or an 
+** [SQLITE_NOMEM] in [sqlite3changeset_new()]) then an error code corresponding
+** to that error is returned by this function. Otherwise, SQLITE_OK is
+** returned. This is to allow the following pattern (pseudo-code):
+**
+** <pre>
+**   sqlite3changeset_start();
+**   while( SQLITE_ROW==sqlite3changeset_next() ){
+**     // Do something with change.
+**   }
+**   rc = sqlite3changeset_finalize();
+**   if( rc!=SQLITE_OK ){
+**     // An error has occurred 
+**   }
+** </pre>
+*/
+int sqlite3changeset_finalize(sqlite3_changeset_iter *pIter);
+
+/*
+** CAPI3REF: Invert A Changeset
+**
+** This function is used to "invert" a changeset object. Applying an inverted
+** changeset to a database reverses the effects of applying the uninverted
+** changeset. Specifically:
+**
+** <ul>
+**   <li> Each DELETE change is changed to an INSERT, and
+**   <li> Each INSERT change is changed to a DELETE, and
+**   <li> For each UPDATE change, the old.* and new.* values are exchanged.
+** </ul>
+**
+** This function does not change the order in which changes appear within
+** the changeset. It merely reverses the sense of each individual change.
+**
+** If successful, a pointer to a buffer containing the inverted changeset
+** is stored in *ppOut, the size of the same buffer is stored in *pnOut, and
+** SQLITE_OK is returned. If an error occurs, both *pnOut and *ppOut are
+** zeroed and an SQLite error code returned.
+**
+** It is the responsibility of the caller to eventually call sqlite3_free()
+** on the *ppOut pointer to free the buffer allocation following a successful 
+** call to this function.
+**
+** WARNING/TODO: This function currently assumes that the input is a valid
+** changeset. If it is not, the results are undefined.
+*/
+int sqlite3changeset_invert(
+  int nIn, const void *pIn,       /* Input changeset */
+  int *pnOut, void **ppOut        /* OUT: Inverse of input */
+);
+
+/*
+** CAPI3REF: Concatenate Two Changeset Objects
+**
+** This function is used to concatenate two changesets, A and B, into a 
+** single changeset. The result is a changeset equivalent to applying
+** changeset A followed by changeset B. 
+**
+** This function combines the two input changesets using an 
+** sqlite3_changegroup object. Calling it produces similar results as the
+** following code fragment:
+**
+** <pre>
+**   sqlite3_changegroup *pGrp;
+**   rc = sqlite3_changegroup_new(&pGrp);
+**   if( rc==SQLITE_OK ) rc = sqlite3changegroup_add(pGrp, nA, pA);
+**   if( rc==SQLITE_OK ) rc = sqlite3changegroup_add(pGrp, nB, pB);
+**   if( rc==SQLITE_OK ){
+**     rc = sqlite3changegroup_output(pGrp, pnOut, ppOut);
+**   }else{
+**     *ppOut = 0;
+**     *pnOut = 0;
+**   }
+** </pre>
+**
+** Refer to the sqlite3_changegroup documentation below for details.
+*/
+int sqlite3changeset_concat(
+  int nA,                         /* Number of bytes in buffer pA */
+  void *pA,                       /* Pointer to buffer containing changeset A */
+  int nB,                         /* Number of bytes in buffer pB */
+  void *pB,                       /* Pointer to buffer containing changeset B */
+  int *pnOut,                     /* OUT: Number of bytes in output changeset */
+  void **ppOut                    /* OUT: Buffer containing output changeset */
+);
+
+
+/*
+** CAPI3REF: Upgrade the Schema of a Changeset/Patchset
+*/
+int sqlite3changeset_upgrade(
+  sqlite3 *db,
+  const char *zDb,
+  int nIn, const void *pIn,       /* Input changeset */
+  int *pnOut, void **ppOut        /* OUT: Inverse of input */
+);
+
+
+
+/*
+** CAPI3REF: Changegroup Handle
+**
+** A changegroup is an object used to combine two or more 
+** [changesets] or [patchsets]
+*/
+typedef struct sqlite3_changegroup sqlite3_changegroup;
+
+/*
+** CAPI3REF: Create A New Changegroup Object
+** CONSTRUCTOR: sqlite3_changegroup
+**
+** An sqlite3_changegroup object is used to combine two or more changesets
+** (or patchsets) into a single changeset (or patchset). A single changegroup
+** object may combine changesets or patchsets, but not both. The output is
+** always in the same format as the input.
+**
+** If successful, this function returns SQLITE_OK and populates (*pp) with
+** a pointer to a new sqlite3_changegroup object before returning. The caller
+** should eventually free the returned object using a call to 
+** sqlite3changegroup_delete(). If an error occurs, an SQLite error code
+** (i.e. SQLITE_NOMEM) is returned and *pp is set to NULL.
+**
+** The usual usage pattern for an sqlite3_changegroup object is as follows:
+**
+** <ul>
+**   <li> It is created using a call to sqlite3changegroup_new().
+**
+**   <li> Zero or more changesets (or patchsets) are added to the object
+**        by calling sqlite3changegroup_add().
+**
+**   <li> The result of combining all input changesets together is obtained 
+**        by the application via a call to sqlite3changegroup_output().
+**
+**   <li> The object is deleted using a call to sqlite3changegroup_delete().
+** </ul>
+**
+** Any number of calls to add() and output() may be made between the calls to
+** new() and delete(), and in any order.
+**
+** As well as the regular sqlite3changegroup_add() and 
+** sqlite3changegroup_output() functions, also available are the streaming
+** versions sqlite3changegroup_add_strm() and sqlite3changegroup_output_strm().
+*/
+int sqlite3changegroup_new(sqlite3_changegroup **pp);
+
+/*
+** CAPI3REF: Add a Schema to a Changegroup
+** METHOD: sqlite3_changegroup_schema
+**
+** This method may be used to optionally enforce the rule that the changesets
+** added to the changegroup handle must match the schema of database zDb
+** ("main", "temp", or the name of an attached database). If
+** sqlite3changegroup_add() is called to add a changeset that is not compatible
+** with the configured schema, SQLITE_SCHEMA is returned and the changegroup
+** object is left in an undefined state.
+**
+** A changeset schema is considered compatible with the database schema in
+** the same way as for sqlite3changeset_apply(). Specifically, for each
+** table in the changeset, there exists a database table with:
+**
+** <ul>
+**   <li> The name identified by the changeset, and
+**   <li> at least as many columns as recorded in the changeset, and
+**   <li> the primary key columns in the same position as recorded in 
+**        the changeset.
+** </ul>
+**
+** The output of the changegroup object always has the same schema as the
+** database nominated using this function. In cases where changesets passed
+** to sqlite3changegroup_add() have fewer columns than the corresponding table
+** in the database schema, these are filled in using the default column
+** values from the database schema. This makes it possible to combined 
+** changesets that have different numbers of columns for a single table
+** within a changegroup, provided that they are otherwise compatible.
+*/
+int sqlite3changegroup_schema(sqlite3_changegroup*, sqlite3*, const char *zDb);
+
+/*
+** CAPI3REF: Add A Changeset To A Changegroup
+** METHOD: sqlite3_changegroup
+**
+** Add all changes within the changeset (or patchset) in buffer pData (size
+** nData bytes) to the changegroup. 
+**
+** If the buffer contains a patchset, then all prior calls to this function
+** on the same changegroup object must also have specified patchsets. Or, if
+** the buffer contains a changeset, so must have the earlier calls to this
+** function. Otherwise, SQLITE_ERROR is returned and no changes are added
+** to the changegroup.
+**
+** Rows within the changeset and changegroup are identified by the values in
+** their PRIMARY KEY columns. A change in the changeset is considered to
+** apply to the same row as a change already present in the changegroup if
+** the two rows have the same primary key.
+**
+** Changes to rows that do not already appear in the changegroup are
+** simply copied into it. Or, if both the new changeset and the changegroup
+** contain changes that apply to a single row, the final contents of the
+** changegroup depends on the type of each change, as follows:
+**
+** <table border=1 style="margin-left:8ex;margin-right:8ex">
+**   <tr><th style="white-space:pre">Existing Change  </th>
+**       <th style="white-space:pre">New Change       </th>
+**       <th>Output Change
+**   <tr><td>INSERT <td>INSERT <td>
+**       The new change is ignored. This case does not occur if the new
+**       changeset was recorded immediately after the changesets already
+**       added to the changegroup.
+**   <tr><td>INSERT <td>UPDATE <td>
+**       The INSERT change remains in the changegroup. The values in the 
+**       INSERT change are modified as if the row was inserted by the
+**       existing change and then updated according to the new change.
+**   <tr><td>INSERT <td>DELETE <td>
+**       The existing INSERT is removed from the changegroup. The DELETE is
+**       not added.
+**   <tr><td>UPDATE <td>INSERT <td>
+**       The new change is ignored. This case does not occur if the new
+**       changeset was recorded immediately after the changesets already
+**       added to the changegroup.
+**   <tr><td>UPDATE <td>UPDATE <td>
+**       The existing UPDATE remains within the changegroup. It is amended 
+**       so that the accompanying values are as if the row was updated once 
+**       by the existing change and then again by the new change.
+**   <tr><td>UPDATE <td>DELETE <td>
+**       The existing UPDATE is replaced by the new DELETE within the
+**       changegroup.
+**   <tr><td>DELETE <td>INSERT <td>
+**       If one or more of the column values in the row inserted by the
+**       new change differ from those in the row deleted by the existing 
+**       change, the existing DELETE is replaced by an UPDATE within the
+**       changegroup. Otherwise, if the inserted row is exactly the same 
+**       as the deleted row, the existing DELETE is simply discarded.
+**   <tr><td>DELETE <td>UPDATE <td>
+**       The new change is ignored. This case does not occur if the new
+**       changeset was recorded immediately after the changesets already
+**       added to the changegroup.
+**   <tr><td>DELETE <td>DELETE <td>
+**       The new change is ignored. This case does not occur if the new
+**       changeset was recorded immediately after the changesets already
+**       added to the changegroup.
+** </table>
+**
+** If the new changeset contains changes to a table that is already present
+** in the changegroup, then the number of columns and the position of the
+** primary key columns for the table must be consistent. If this is not the
+** case, this function fails with SQLITE_SCHEMA. Except, if the changegroup
+** object has been configured with a database schema using the
+** sqlite3changegroup_schema() API, then it is possible to combine changesets
+** with different numbers of columns for a single table, provided that
+** they are otherwise compatible.
+**
+** If the input changeset appears to be corrupt and the corruption is
+** detected, SQLITE_CORRUPT is returned. Or, if an out-of-memory condition
+** occurs during processing, this function returns SQLITE_NOMEM. 
+**
+** In all cases, if an error occurs the state of the final contents of the
+** changegroup is undefined. If no error occurs, SQLITE_OK is returned.
+*/
+int sqlite3changegroup_add(sqlite3_changegroup*, int nData, void *pData);
+
+/*
+** CAPI3REF: Add A Single Change To A Changegroup
+** METHOD: sqlite3_changegroup
+**
+** This function adds the single change currently indicated by the iterator
+** passed as the second argument to the changegroup object. The rules for
+** adding the change are just as described for [sqlite3changegroup_add()].
+**
+** If the change is successfully added to the changegroup, SQLITE_OK is
+** returned. Otherwise, an SQLite error code is returned.
+**
+** The iterator must point to a valid entry when this function is called.
+** If it does not, SQLITE_ERROR is returned and no change is added to the
+** changegroup. Additionally, the iterator must not have been opened with
+** the SQLITE_CHANGESETAPPLY_INVERT flag. In this case SQLITE_ERROR is also
+** returned.
+*/
+int sqlite3changegroup_add_change(
+  sqlite3_changegroup*,
+  sqlite3_changeset_iter*
+);
+
+
+
+/*
+** CAPI3REF: Obtain A Composite Changeset From A Changegroup
+** METHOD: sqlite3_changegroup
+**
+** Obtain a buffer containing a changeset (or patchset) representing the
+** current contents of the changegroup. If the inputs to the changegroup
+** were themselves changesets, the output is a changeset. Or, if the
+** inputs were patchsets, the output is also a patchset.
+**
+** As with the output of the sqlite3session_changeset() and
+** sqlite3session_patchset() functions, all changes related to a single
+** table are grouped together in the output of this function. Tables appear
+** in the same order as for the very first changeset added to the changegroup.
+** If the second or subsequent changesets added to the changegroup contain
+** changes for tables that do not appear in the first changeset, they are
+** appended onto the end of the output changeset, again in the order in
+** which they are first encountered.
+**
+** If an error occurs, an SQLite error code is returned and the output
+** variables (*pnData) and (*ppData) are set to 0. Otherwise, SQLITE_OK
+** is returned and the output variables are set to the size of and a 
+** pointer to the output buffer, respectively. In this case it is the
+** responsibility of the caller to eventually free the buffer using a
+** call to sqlite3_free().
+*/
+int sqlite3changegroup_output(
+  sqlite3_changegroup*,
+  int *pnData,                    /* OUT: Size of output buffer in bytes */
+  void **ppData                   /* OUT: Pointer to output buffer */
+);
+
+/*
+** CAPI3REF: Delete A Changegroup Object
+** DESTRUCTOR: sqlite3_changegroup
+*/
+void sqlite3changegroup_delete(sqlite3_changegroup*);
+
+/*
+** CAPI3REF: Apply A Changeset To A Database
+**
+** Apply a changeset or patchset to a database. These functions attempt to
+** update the "main" database attached to handle db with the changes found in
+** the changeset passed via the second and third arguments. 
+**
+** The fourth argument (xFilter) passed to these functions is the "filter
+** callback". If it is not NULL, then for each table affected by at least one
+** change in the changeset, the filter callback is invoked with
+** the table name as the second argument, and a copy of the context pointer
+** passed as the sixth argument as the first. If the "filter callback"
+** returns zero, then no attempt is made to apply any changes to the table.
+** Otherwise, if the return value is non-zero or the xFilter argument to
+** is NULL, all changes related to the table are attempted.
+**
+** For each table that is not excluded by the filter callback, this function 
+** tests that the target database contains a compatible table. A table is 
+** considered compatible if all of the following are true:
+**
+** <ul>
+**   <li> The table has the same name as the name recorded in the 
+**        changeset, and
+**   <li> The table has at least as many columns as recorded in the 
+**        changeset, and
+**   <li> The table has primary key columns in the same position as 
+**        recorded in the changeset.
+** </ul>
+**
+** If there is no compatible table, it is not an error, but none of the
+** changes associated with the table are applied. A warning message is issued
+** via the sqlite3_log() mechanism with the error code SQLITE_SCHEMA. At most
+** one such warning is issued for each table in the changeset.
+**
+** For each change for which there is a compatible table, an attempt is made 
+** to modify the table contents according to the UPDATE, INSERT or DELETE 
+** change. If a change cannot be applied cleanly, the conflict handler 
+** function passed as the fifth argument to sqlite3changeset_apply() may be 
+** invoked. A description of exactly when the conflict handler is invoked for 
+** each type of change is below.
+**
+** Unlike the xFilter argument, xConflict may not be passed NULL. The results
+** of passing anything other than a valid function pointer as the xConflict
+** argument are undefined.
+**
+** Each time the conflict handler function is invoked, it must return one
+** of [SQLITE_CHANGESET_OMIT], [SQLITE_CHANGESET_ABORT] or 
+** [SQLITE_CHANGESET_REPLACE]. SQLITE_CHANGESET_REPLACE may only be returned
+** if the second argument passed to the conflict handler is either
+** SQLITE_CHANGESET_DATA or SQLITE_CHANGESET_CONFLICT. If the conflict-handler
+** returns an illegal value, any changes already made are rolled back and
+** the call to sqlite3changeset_apply() returns SQLITE_MISUSE. Different 
+** actions are taken by sqlite3changeset_apply() depending on the value
+** returned by each invocation of the conflict-handler function. Refer to
+** the documentation for the three 
+** [SQLITE_CHANGESET_OMIT|available return values] for details.
+**
+** <dl>
+** <dt>DELETE Changes<dd>
+**   For each DELETE change, the function checks if the target database 
+**   contains a row with the same primary key value (or values) as the 
+**   original row values stored in the changeset. If it does, and the values 
+**   stored in all non-primary key columns also match the values stored in 
+**   the changeset the row is deleted from the target database.
+**
+**   If a row with matching primary key values is found, but one or more of
+**   the non-primary key fields contains a value different from the original
+**   row value stored in the changeset, the conflict-handler function is
+**   invoked with [SQLITE_CHANGESET_DATA] as the second argument. If the
+**   database table has more columns than are recorded in the changeset,
+**   only the values of those non-primary key fields are compared against
+**   the current database contents - any trailing database table columns
+**   are ignored.
+**
+**   If no row with matching primary key values is found in the database,
+**   the conflict-handler function is invoked with [SQLITE_CHANGESET_NOTFOUND]
+**   passed as the second argument.
+**
+**   If the DELETE operation is attempted, but SQLite returns SQLITE_CONSTRAINT
+**   (which can only happen if a foreign key constraint is violated), the
+**   conflict-handler function is invoked with [SQLITE_CHANGESET_CONSTRAINT]
+**   passed as the second argument. This includes the case where the DELETE
+**   operation is attempted because an earlier call to the conflict handler
+**   function returned [SQLITE_CHANGESET_REPLACE].
+**
+** <dt>INSERT Changes<dd>
+**   For each INSERT change, an attempt is made to insert the new row into
+**   the database. If the changeset row contains fewer fields than the
+**   database table, the trailing fields are populated with their default
+**   values.
+**
+**   If the attempt to insert the row fails because the database already 
+**   contains a row with the same primary key values, the conflict handler
+**   function is invoked with the second argument set to 
+**   [SQLITE_CHANGESET_CONFLICT].
+**
+**   If the attempt to insert the row fails because of some other constraint
+**   violation (e.g. NOT NULL or UNIQUE), the conflict handler function is 
+**   invoked with the second argument set to [SQLITE_CHANGESET_CONSTRAINT].
+**   This includes the case where the INSERT operation is re-attempted because 
+**   an earlier call to the conflict handler function returned 
+**   [SQLITE_CHANGESET_REPLACE].
+**
+** <dt>UPDATE Changes<dd>
+**   For each UPDATE change, the function checks if the target database 
+**   contains a row with the same primary key value (or values) as the 
+**   original row values stored in the changeset. If it does, and the values 
+**   stored in all modified non-primary key columns also match the values
+**   stored in the changeset the row is updated within the target database.
+**
+**   If a row with matching primary key values is found, but one or more of
+**   the modified non-primary key fields contains a value different from an
+**   original row value stored in the changeset, the conflict-handler function
+**   is invoked with [SQLITE_CHANGESET_DATA] as the second argument. Since
+**   UPDATE changes only contain values for non-primary key fields that are
+**   to be modified, only those fields need to match the original values to
+**   avoid the SQLITE_CHANGESET_DATA conflict-handler callback.
+**
+**   If no row with matching primary key values is found in the database,
+**   the conflict-handler function is invoked with [SQLITE_CHANGESET_NOTFOUND]
+**   passed as the second argument.
+**
+**   If the UPDATE operation is attempted, but SQLite returns 
+**   SQLITE_CONSTRAINT, the conflict-handler function is invoked with 
+**   [SQLITE_CHANGESET_CONSTRAINT] passed as the second argument.
+**   This includes the case where the UPDATE operation is attempted after 
+**   an earlier call to the conflict handler function returned
+**   [SQLITE_CHANGESET_REPLACE].  
+** </dl>
+**
+** It is safe to execute SQL statements, including those that write to the
+** table that the callback related to, from within the xConflict callback.
+** This can be used to further customize the application's conflict
+** resolution strategy.
+**
+** All changes made by these functions are enclosed in a savepoint transaction.
+** If any other error (aside from a constraint failure when attempting to
+** write to the target database) occurs, then the savepoint transaction is
+** rolled back, restoring the target database to its original state, and an 
+** SQLite error code returned.
+**
+** If the output parameters (ppRebase) and (pnRebase) are non-NULL and
+** the input is a changeset (not a patchset), then sqlite3changeset_apply_v2()
+** may set (*ppRebase) to point to a "rebase" that may be used with the 
+** sqlite3_rebaser APIs buffer before returning. In this case (*pnRebase)
+** is set to the size of the buffer in bytes. It is the responsibility of the
+** caller to eventually free any such buffer using sqlite3_free(). The buffer
+** is only allocated and populated if one or more conflicts were encountered
+** while applying the patchset. See comments surrounding the sqlite3_rebaser
+** APIs for further details.
+**
+** The behavior of sqlite3changeset_apply_v2() and its streaming equivalent
+** may be modified by passing a combination of
+** [SQLITE_CHANGESETAPPLY_NOSAVEPOINT | supported flags] as the 9th parameter.
+**
+** Note that the sqlite3changeset_apply_v2() API is still <b>experimental</b>
+** and therefore subject to change.
+*/
+int sqlite3changeset_apply(
+  sqlite3 *db,                    /* Apply change to "main" db of this handle */
+  int nChangeset,                 /* Size of changeset in bytes */
+  void *pChangeset,               /* Changeset blob */
+  int(*xFilter)(
+    void *pCtx,                   /* Copy of sixth arg to _apply() */
+    const char *zTab              /* Table name */
+  ),
+  int(*xConflict)(
+    void *pCtx,                   /* Copy of sixth arg to _apply() */
+    int eConflict,                /* DATA, MISSING, CONFLICT, CONSTRAINT */
+    sqlite3_changeset_iter *p     /* Handle describing change and conflict */
+  ),
+  void *pCtx                      /* First argument passed to xConflict */
+);
+int sqlite3changeset_apply_v2(
+  sqlite3 *db,                    /* Apply change to "main" db of this handle */
+  int nChangeset,                 /* Size of changeset in bytes */
+  void *pChangeset,               /* Changeset blob */
+  int(*xFilter)(
+    void *pCtx,                   /* Copy of sixth arg to _apply() */
+    const char *zTab              /* Table name */
+  ),
+  int(*xConflict)(
+    void *pCtx,                   /* Copy of sixth arg to _apply() */
+    int eConflict,                /* DATA, MISSING, CONFLICT, CONSTRAINT */
+    sqlite3_changeset_iter *p     /* Handle describing change and conflict */
+  ),
+  void *pCtx,                     /* First argument passed to xConflict */
+  void **ppRebase, int *pnRebase, /* OUT: Rebase data */
+  int flags                       /* SESSION_CHANGESETAPPLY_* flags */
+);
+
+/*
+** CAPI3REF: Flags for sqlite3changeset_apply_v2
+**
+** The following flags may passed via the 9th parameter to
+** [sqlite3changeset_apply_v2] and [sqlite3changeset_apply_v2_strm]:
+**
+** <dl>
+** <dt>SQLITE_CHANGESETAPPLY_NOSAVEPOINT <dd>
+**   Usually, the sessions module encloses all operations performed by
+**   a single call to apply_v2() or apply_v2_strm() in a [SAVEPOINT]. The
+**   SAVEPOINT is committed if the changeset or patchset is successfully
+**   applied, or rolled back if an error occurs. Specifying this flag
+**   causes the sessions module to omit this savepoint. In this case, if the
+**   caller has an open transaction or savepoint when apply_v2() is called, 
+**   it may revert the partially applied changeset by rolling it back.
+**
+** <dt>SQLITE_CHANGESETAPPLY_INVERT <dd>
+**   Invert the changeset before applying it. This is equivalent to inverting
+**   a changeset using sqlite3changeset_invert() before applying it. It is
+**   an error to specify this flag with a patchset.
+**
+** <dt>SQLITE_CHANGESETAPPLY_IGNORENOOP <dd>
+**   Do not invoke the conflict handler callback for any changes that
+**   would not actually modify the database even if they were applied.
+**   Specifically, this means that the conflict handler is not invoked
+**   for:
+**    <ul>
+**    <li>a delete change if the row being deleted cannot be found, 
+**    <li>an update change if the modified fields are already set to 
+**        their new values in the conflicting row, or
+**    <li>an insert change if all fields of the conflicting row match
+**        the row being inserted.
+**    </ul>
+**
+** <dt>SQLITE_CHANGESETAPPLY_FKNOACTION <dd>
+**   If this flag it set, then all foreign key constraints in the target
+**   database behave as if they were declared with "ON UPDATE NO ACTION ON
+**   DELETE NO ACTION", even if they are actually CASCADE, RESTRICT, SET NULL
+**   or SET DEFAULT.
+*/
+#define SQLITE_CHANGESETAPPLY_NOSAVEPOINT   0x0001
+#define SQLITE_CHANGESETAPPLY_INVERT        0x0002
+#define SQLITE_CHANGESETAPPLY_IGNORENOOP    0x0004
+#define SQLITE_CHANGESETAPPLY_FKNOACTION    0x0008
+
+/* 
+** CAPI3REF: Constants Passed To The Conflict Handler
+**
+** Values that may be passed as the second argument to a conflict-handler.
+**
+** <dl>
+** <dt>SQLITE_CHANGESET_DATA<dd>
+**   The conflict handler is invoked with CHANGESET_DATA as the second argument
+**   when processing a DELETE or UPDATE change if a row with the required
+**   PRIMARY KEY fields is present in the database, but one or more other 
+**   (non primary-key) fields modified by the update do not contain the 
+**   expected "before" values.
+** 
+**   The conflicting row, in this case, is the database row with the matching
+**   primary key.
+** 
+** <dt>SQLITE_CHANGESET_NOTFOUND<dd>
+**   The conflict handler is invoked with CHANGESET_NOTFOUND as the second
+**   argument when processing a DELETE or UPDATE change if a row with the
+**   required PRIMARY KEY fields is not present in the database.
+** 
+**   There is no conflicting row in this case. The results of invoking the
+**   sqlite3changeset_conflict() API are undefined.
+** 
+** <dt>SQLITE_CHANGESET_CONFLICT<dd>
+**   CHANGESET_CONFLICT is passed as the second argument to the conflict
+**   handler while processing an INSERT change if the operation would result 
+**   in duplicate primary key values.
+** 
+**   The conflicting row in this case is the database row with the matching
+**   primary key.
+**
+** <dt>SQLITE_CHANGESET_FOREIGN_KEY<dd>
+**   If foreign key handling is enabled, and applying a changeset leaves the
+**   database in a state containing foreign key violations, the conflict 
+**   handler is invoked with CHANGESET_FOREIGN_KEY as the second argument
+**   exactly once before the changeset is committed. If the conflict handler
+**   returns CHANGESET_OMIT, the changes, including those that caused the
+**   foreign key constraint violation, are committed. Or, if it returns
+**   CHANGESET_ABORT, the changeset is rolled back.
+**
+**   No current or conflicting row information is provided. The only function
+**   it is possible to call on the supplied sqlite3_changeset_iter handle
+**   is sqlite3changeset_fk_conflicts().
+** 
+** <dt>SQLITE_CHANGESET_CONSTRAINT<dd>
+**   If any other constraint violation occurs while applying a change (i.e. 
+**   a UNIQUE, CHECK or NOT NULL constraint), the conflict handler is 
+**   invoked with CHANGESET_CONSTRAINT as the second argument.
+** 
+**   There is no conflicting row in this case. The results of invoking the
+**   sqlite3changeset_conflict() API are undefined.
+**
+** </dl>
+*/
+#define SQLITE_CHANGESET_DATA        1
+#define SQLITE_CHANGESET_NOTFOUND    2
+#define SQLITE_CHANGESET_CONFLICT    3
+#define SQLITE_CHANGESET_CONSTRAINT  4
+#define SQLITE_CHANGESET_FOREIGN_KEY 5
+
+/* 
+** CAPI3REF: Constants Returned By The Conflict Handler
+**
+** A conflict handler callback must return one of the following three values.
+**
+** <dl>
+** <dt>SQLITE_CHANGESET_OMIT<dd>
+**   If a conflict handler returns this value no special action is taken. The
+**   change that caused the conflict is not applied. The session module 
+**   continues to the next change in the changeset.
+**
+** <dt>SQLITE_CHANGESET_REPLACE<dd>
+**   This value may only be returned if the second argument to the conflict
+**   handler was SQLITE_CHANGESET_DATA or SQLITE_CHANGESET_CONFLICT. If this
+**   is not the case, any changes applied so far are rolled back and the 
+**   call to sqlite3changeset_apply() returns SQLITE_MISUSE.
+**
+**   If CHANGESET_REPLACE is returned by an SQLITE_CHANGESET_DATA conflict
+**   handler, then the conflicting row is either updated or deleted, depending
+**   on the type of change.
+**
+**   If CHANGESET_REPLACE is returned by an SQLITE_CHANGESET_CONFLICT conflict
+**   handler, then the conflicting row is removed from the database and a
+**   second attempt to apply the change is made. If this second attempt fails,
+**   the original row is restored to the database before continuing.
+**
+** <dt>SQLITE_CHANGESET_ABORT<dd>
+**   If this value is returned, any changes applied so far are rolled back 
+**   and the call to sqlite3changeset_apply() returns SQLITE_ABORT.
+** </dl>
+*/
+#define SQLITE_CHANGESET_OMIT       0
+#define SQLITE_CHANGESET_REPLACE    1
+#define SQLITE_CHANGESET_ABORT      2
+
+/* 
+** CAPI3REF: Rebasing changesets
+** EXPERIMENTAL
+**
+** Suppose there is a site hosting a database in state S0. And that
+** modifications are made that move that database to state S1 and a
+** changeset recorded (the "local" changeset). Then, a changeset based
+** on S0 is received from another site (the "remote" changeset) and 
+** applied to the database. The database is then in state 
+** (S1+"remote"), where the exact state depends on any conflict
+** resolution decisions (OMIT or REPLACE) made while applying "remote".
+** Rebasing a changeset is to update it to take those conflict 
+** resolution decisions into account, so that the same conflicts
+** do not have to be resolved elsewhere in the network. 
+**
+** For example, if both the local and remote changesets contain an
+** INSERT of the same key on "CREATE TABLE t1(a PRIMARY KEY, b)":
+**
+**   local:  INSERT INTO t1 VALUES(1, 'v1');
+**   remote: INSERT INTO t1 VALUES(1, 'v2');
+**
+** and the conflict resolution is REPLACE, then the INSERT change is
+** removed from the local changeset (it was overridden). Or, if the
+** conflict resolution was "OMIT", then the local changeset is modified
+** to instead contain:
+**
+**           UPDATE t1 SET b = 'v2' WHERE a=1;
+**
+** Changes within the local changeset are rebased as follows:
+**
+** <dl>
+** <dt>Local INSERT<dd>
+**   This may only conflict with a remote INSERT. If the conflict 
+**   resolution was OMIT, then add an UPDATE change to the rebased
+**   changeset. Or, if the conflict resolution was REPLACE, add
+**   nothing to the rebased changeset.
+**
+** <dt>Local DELETE<dd>
+**   This may conflict with a remote UPDATE or DELETE. In both cases the
+**   only possible resolution is OMIT. If the remote operation was a
+**   DELETE, then add no change to the rebased changeset. If the remote
+**   operation was an UPDATE, then the old.* fields of change are updated
+**   to reflect the new.* values in the UPDATE.
+**
+** <dt>Local UPDATE<dd>
+**   This may conflict with a remote UPDATE or DELETE. If it conflicts
+**   with a DELETE, and the conflict resolution was OMIT, then the update
+**   is changed into an INSERT. Any undefined values in the new.* record
+**   from the update change are filled in using the old.* values from
+**   the conflicting DELETE. Or, if the conflict resolution was REPLACE,
+**   the UPDATE change is simply omitted from the rebased changeset.
+**
+**   If conflict is with a remote UPDATE and the resolution is OMIT, then
+**   the old.* values are rebased using the new.* values in the remote
+**   change. Or, if the resolution is REPLACE, then the change is copied
+**   into the rebased changeset with updates to columns also updated by
+**   the conflicting remote UPDATE removed. If this means no columns would 
+**   be updated, the change is omitted.
+** </dl>
+**
+** A local change may be rebased against multiple remote changes 
+** simultaneously. If a single key is modified by multiple remote 
+** changesets, they are combined as follows before the local changeset
+** is rebased:
+**
+** <ul>
+**    <li> If there has been one or more REPLACE resolutions on a
+**         key, it is rebased according to a REPLACE.
+**
+**    <li> If there have been no REPLACE resolutions on a key, then
+**         the local changeset is rebased according to the most recent
+**         of the OMIT resolutions.
+** </ul>
+**
+** Note that conflict resolutions from multiple remote changesets are 
+** combined on a per-field basis, not per-row. This means that in the 
+** case of multiple remote UPDATE operations, some fields of a single 
+** local change may be rebased for REPLACE while others are rebased for 
+** OMIT.
+**
+** In order to rebase a local changeset, the remote changeset must first
+** be applied to the local database using sqlite3changeset_apply_v2() and
+** the buffer of rebase information captured. Then:
+**
+** <ol>
+**   <li> An sqlite3_rebaser object is created by calling 
+**        sqlite3rebaser_create().
+**   <li> The new object is configured with the rebase buffer obtained from
+**        sqlite3changeset_apply_v2() by calling sqlite3rebaser_configure().
+**        If the local changeset is to be rebased against multiple remote
+**        changesets, then sqlite3rebaser_configure() should be called
+**        multiple times, in the same order that the multiple
+**        sqlite3changeset_apply_v2() calls were made.
+**   <li> Each local changeset is rebased by calling sqlite3rebaser_rebase().
+**   <li> The sqlite3_rebaser object is deleted by calling
+**        sqlite3rebaser_delete().
+** </ol>
+*/
+typedef struct sqlite3_rebaser sqlite3_rebaser;
+
+/*
+** CAPI3REF: Create a changeset rebaser object.
+** EXPERIMENTAL
+**
+** Allocate a new changeset rebaser object. If successful, set (*ppNew) to
+** point to the new object and return SQLITE_OK. Otherwise, if an error
+** occurs, return an SQLite error code (e.g. SQLITE_NOMEM) and set (*ppNew) 
+** to NULL. 
+*/
+int sqlite3rebaser_create(sqlite3_rebaser **ppNew);
+
+/*
+** CAPI3REF: Configure a changeset rebaser object.
+** EXPERIMENTAL
+**
+** Configure the changeset rebaser object to rebase changesets according
+** to the conflict resolutions described by buffer pRebase (size nRebase
+** bytes), which must have been obtained from a previous call to
+** sqlite3changeset_apply_v2().
+*/
+int sqlite3rebaser_configure(
+  sqlite3_rebaser*, 
+  int nRebase, const void *pRebase
+); 
+
+/*
+** CAPI3REF: Rebase a changeset
+** EXPERIMENTAL
+**
+** Argument pIn must point to a buffer containing a changeset nIn bytes
+** in size. This function allocates and populates a buffer with a copy
+** of the changeset rebased according to the configuration of the
+** rebaser object passed as the first argument. If successful, (*ppOut)
+** is set to point to the new buffer containing the rebased changeset and 
+** (*pnOut) to its size in bytes and SQLITE_OK returned. It is the
+** responsibility of the caller to eventually free the new buffer using
+** sqlite3_free(). Otherwise, if an error occurs, (*ppOut) and (*pnOut)
+** are set to zero and an SQLite error code returned.
+*/
+int sqlite3rebaser_rebase(
+  sqlite3_rebaser*,
+  int nIn, const void *pIn, 
+  int *pnOut, void **ppOut 
+);
+
+/*
+** CAPI3REF: Delete a changeset rebaser object.
+** EXPERIMENTAL
+**
+** Delete the changeset rebaser object and all associated resources. There
+** should be one call to this function for each successful invocation
+** of sqlite3rebaser_create().
+*/
+void sqlite3rebaser_delete(sqlite3_rebaser *p); 
+
+/*
+** CAPI3REF: Streaming Versions of API functions.
+**
+** The six streaming API xxx_strm() functions serve similar purposes to the 
+** corresponding non-streaming API functions:
+**
+** <table border=1 style="margin-left:8ex;margin-right:8ex">
+**   <tr><th>Streaming function<th>Non-streaming equivalent</th>
+**   <tr><td>sqlite3changeset_apply_strm<td>[sqlite3changeset_apply] 
+**   <tr><td>sqlite3changeset_apply_strm_v2<td>[sqlite3changeset_apply_v2] 
+**   <tr><td>sqlite3changeset_concat_strm<td>[sqlite3changeset_concat] 
+**   <tr><td>sqlite3changeset_invert_strm<td>[sqlite3changeset_invert] 
+**   <tr><td>sqlite3changeset_start_strm<td>[sqlite3changeset_start] 
+**   <tr><td>sqlite3session_changeset_strm<td>[sqlite3session_changeset] 
+**   <tr><td>sqlite3session_patchset_strm<td>[sqlite3session_patchset] 
+** </table>
+**
+** Non-streaming functions that accept changesets (or patchsets) as input
+** require that the entire changeset be stored in a single buffer in memory. 
+** Similarly, those that return a changeset or patchset do so by returning 
+** a pointer to a single large buffer allocated using sqlite3_malloc(). 
+** Normally this is convenient. However, if an application running in a 
+** low-memory environment is required to handle very large changesets, the
+** large contiguous memory allocations required can become onerous.
+**
+** In order to avoid this problem, instead of a single large buffer, input
+** is passed to a streaming API functions by way of a callback function that
+** the sessions module invokes to incrementally request input data as it is
+** required. In all cases, a pair of API function parameters such as
+**
+**  <pre>
+**  &nbsp;     int nChangeset,
+**  &nbsp;     void *pChangeset,
+**  </pre>
+**
+** Is replaced by:
+**
+**  <pre>
+**  &nbsp;     int (*xInput)(void *pIn, void *pData, int *pnData),
+**  &nbsp;     void *pIn,
+**  </pre>
+**
+** Each time the xInput callback is invoked by the sessions module, the first
+** argument passed is a copy of the supplied pIn context pointer. The second 
+** argument, pData, points to a buffer (*pnData) bytes in size. Assuming no 
+** error occurs the xInput method should copy up to (*pnData) bytes of data 
+** into the buffer and set (*pnData) to the actual number of bytes copied 
+** before returning SQLITE_OK. If the input is completely exhausted, (*pnData) 
+** should be set to zero to indicate this. Or, if an error occurs, an SQLite 
+** error code should be returned. In all cases, if an xInput callback returns
+** an error, all processing is abandoned and the streaming API function
+** returns a copy of the error code to the caller.
+**
+** In the case of sqlite3changeset_start_strm(), the xInput callback may be
+** invoked by the sessions module at any point during the lifetime of the
+** iterator. If such an xInput callback returns an error, the iterator enters
+** an error state, whereby all subsequent calls to iterator functions 
+** immediately fail with the same error code as returned by xInput.
+**
+** Similarly, streaming API functions that return changesets (or patchsets)
+** return them in chunks by way of a callback function instead of via a
+** pointer to a single large buffer. In this case, a pair of parameters such
+** as:
+**
+**  <pre>
+**  &nbsp;     int *pnChangeset,
+**  &nbsp;     void **ppChangeset,
+**  </pre>
+**
+** Is replaced by:
+**
+**  <pre>
+**  &nbsp;     int (*xOutput)(void *pOut, const void *pData, int nData),
+**  &nbsp;     void *pOut
+**  </pre>
+**
+** The xOutput callback is invoked zero or more times to return data to
+** the application. The first parameter passed to each call is a copy of the
+** pOut pointer supplied by the application. The second parameter, pData,
+** points to a buffer nData bytes in size containing the chunk of output
+** data being returned. If the xOutput callback successfully processes the
+** supplied data, it should return SQLITE_OK to indicate success. Otherwise,
+** it should return some other SQLite error code. In this case processing
+** is immediately abandoned and the streaming API function returns a copy
+** of the xOutput error code to the application.
+**
+** The sessions module never invokes an xOutput callback with the third 
+** parameter set to a value less than or equal to zero. Other than this,
+** no guarantees are made as to the size of the chunks of data returned.
+*/
+int sqlite3changeset_apply_strm(
+  sqlite3 *db,                    /* Apply change to "main" db of this handle */
+  int (*xInput)(void *pIn, void *pData, int *pnData), /* Input function */
+  void *pIn,                                          /* First arg for xInput */
+  int(*xFilter)(
+    void *pCtx,                   /* Copy of sixth arg to _apply() */
+    const char *zTab              /* Table name */
+  ),
+  int(*xConflict)(
+    void *pCtx,                   /* Copy of sixth arg to _apply() */
+    int eConflict,                /* DATA, MISSING, CONFLICT, CONSTRAINT */
+    sqlite3_changeset_iter *p     /* Handle describing change and conflict */
+  ),
+  void *pCtx                      /* First argument passed to xConflict */
+);
+int sqlite3changeset_apply_v2_strm(
+  sqlite3 *db,                    /* Apply change to "main" db of this handle */
+  int (*xInput)(void *pIn, void *pData, int *pnData), /* Input function */
+  void *pIn,                                          /* First arg for xInput */
+  int(*xFilter)(
+    void *pCtx,                   /* Copy of sixth arg to _apply() */
+    const char *zTab              /* Table name */
+  ),
+  int(*xConflict)(
+    void *pCtx,                   /* Copy of sixth arg to _apply() */
+    int eConflict,                /* DATA, MISSING, CONFLICT, CONSTRAINT */
+    sqlite3_changeset_iter *p     /* Handle describing change and conflict */
+  ),
+  void *pCtx,                     /* First argument passed to xConflict */
+  void **ppRebase, int *pnRebase,
+  int flags
+);
+int sqlite3changeset_concat_strm(
+  int (*xInputA)(void *pIn, void *pData, int *pnData),
+  void *pInA,
+  int (*xInputB)(void *pIn, void *pData, int *pnData),
+  void *pInB,
+  int (*xOutput)(void *pOut, const void *pData, int nData),
+  void *pOut
+);
+int sqlite3changeset_invert_strm(
+  int (*xInput)(void *pIn, void *pData, int *pnData),
+  void *pIn,
+  int (*xOutput)(void *pOut, const void *pData, int nData),
+  void *pOut
+);
+int sqlite3changeset_start_strm(
+  sqlite3_changeset_iter **pp,
+  int (*xInput)(void *pIn, void *pData, int *pnData),
+  void *pIn
+);
+int sqlite3changeset_start_v2_strm(
+  sqlite3_changeset_iter **pp,
+  int (*xInput)(void *pIn, void *pData, int *pnData),
+  void *pIn,
+  int flags
+);
+int sqlite3session_changeset_strm(
+  sqlite3_session *pSession,
+  int (*xOutput)(void *pOut, const void *pData, int nData),
+  void *pOut
+);
+int sqlite3session_patchset_strm(
+  sqlite3_session *pSession,
+  int (*xOutput)(void *pOut, const void *pData, int nData),
+  void *pOut
+);
+int sqlite3changegroup_add_strm(sqlite3_changegroup*, 
+    int (*xInput)(void *pIn, void *pData, int *pnData),
+    void *pIn
+);
+int sqlite3changegroup_output_strm(sqlite3_changegroup*,
+    int (*xOutput)(void *pOut, const void *pData, int nData), 
+    void *pOut
+);
+int sqlite3rebaser_rebase_strm(
+  sqlite3_rebaser *pRebaser,
+  int (*xInput)(void *pIn, void *pData, int *pnData),
+  void *pIn,
+  int (*xOutput)(void *pOut, const void *pData, int nData),
+  void *pOut
+);
+
+/*
+** CAPI3REF: Configure global parameters
+**
+** The sqlite3session_config() interface is used to make global configuration
+** changes to the sessions module in order to tune it to the specific needs 
+** of the application.
+**
+** The sqlite3session_config() interface is not threadsafe. If it is invoked
+** while any other thread is inside any other sessions method then the
+** results are undefined. Furthermore, if it is invoked after any sessions
+** related objects have been created, the results are also undefined. 
+**
+** The first argument to the sqlite3session_config() function must be one
+** of the SQLITE_SESSION_CONFIG_XXX constants defined below. The 
+** interpretation of the (void*) value passed as the second parameter and
+** the effect of calling this function depends on the value of the first
+** parameter.
+**
+** <dl>
+** <dt>SQLITE_SESSION_CONFIG_STRMSIZE<dd>
+**    By default, the sessions module streaming interfaces attempt to input
+**    and output data in approximately 1 KiB chunks. This operand may be used
+**    to set and query the value of this configuration setting. The pointer
+**    passed as the second argument must point to a value of type (int).
+**    If this value is greater than 0, it is used as the new streaming data
+**    chunk size for both input and output. Before returning, the (int) value
+**    pointed to by pArg is set to the final value of the streaming interface
+**    chunk size.
+** </dl>
+**
+** This function returns SQLITE_OK if successful, or an SQLite error code
+** otherwise.
+*/
+int sqlite3session_config(int op, void *pArg);
+
+/*
+** CAPI3REF: Values for sqlite3session_config().
+*/
+#define SQLITE_SESSION_CONFIG_STRMSIZE 1
+
+/*
+** Make sure we can call this stuff from C++.
+*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif  /* !defined(__SQLITESESSION_H_) && defined(SQLITE_ENABLE_SESSION) */
diff --git a/ext/session/test_session.c b/ext/session/test_session.c
new file mode 100644
index 0000000000000000000000000000000000000000..29aeadf537fd1320cee54a8ad3ca6c793a22b444
--- /dev/null
+++ b/ext/session/test_session.c
@@ -0,0 +1,1752 @@
+
+#if defined(SQLITE_TEST) && defined(SQLITE_ENABLE_SESSION) \
+ && defined(SQLITE_ENABLE_PREUPDATE_HOOK)
+
+#include "sqlite3session.h"
+#include <assert.h>
+#include <string.h>
+#include "tclsqlite.h"
+
+#ifndef SQLITE_AMALGAMATION
+  typedef unsigned char u8;
+#endif
+
+typedef struct TestSession TestSession;
+struct TestSession {
+  sqlite3_session *pSession;
+  Tcl_Interp *interp;
+  Tcl_Obj *pFilterScript;
+};
+
+typedef struct TestStreamInput TestStreamInput;
+struct TestStreamInput {
+  int nStream;                    /* Maximum chunk size */
+  unsigned char *aData;           /* Pointer to buffer containing data */
+  int nData;                      /* Size of buffer aData in bytes */
+  int iData;                      /* Bytes of data already read by sessions */
+};
+
+/*
+** Extract an sqlite3* db handle from the object passed as the second
+** argument. If successful, set *pDb to point to the db handle and return
+** TCL_OK. Otherwise, return TCL_ERROR.
+*/
+static int dbHandleFromObj(Tcl_Interp *interp, Tcl_Obj *pObj, sqlite3 **pDb){
+  Tcl_CmdInfo info;
+  if( 0==Tcl_GetCommandInfo(interp, Tcl_GetString(pObj), &info) ){
+    Tcl_AppendResult(interp, "no such handle: ", Tcl_GetString(pObj), 0);
+    return TCL_ERROR;
+  }
+
+  *pDb = *(sqlite3 **)info.objClientData;
+  return TCL_OK;
+}
+
+/*************************************************************************
+** The following code is copied byte-for-byte from the sessions module
+** documentation.  It is used by some of the sessions modules tests to
+** ensure that the example in the documentation does actually work.
+*/ 
+/*
+** Argument zSql points to a buffer containing an SQL script to execute 
+** against the database handle passed as the first argument. As well as
+** executing the SQL script, this function collects a changeset recording
+** all changes made to the "main" database file. Assuming no error occurs,
+** output variables (*ppChangeset) and (*pnChangeset) are set to point
+** to a buffer containing the changeset and the size of the changeset in
+** bytes before returning SQLITE_OK. In this case it is the responsibility
+** of the caller to eventually free the changeset blob by passing it to
+** the sqlite3_free function.
+**
+** Or, if an error does occur, return an SQLite error code. The final
+** value of (*pChangeset) and (*pnChangeset) are undefined in this case.
+*/
+int sql_exec_changeset(
+  sqlite3 *db,                  /* Database handle */
+  const char *zSql,             /* SQL script to execute */
+  int *pnChangeset,             /* OUT: Size of changeset blob in bytes */
+  void **ppChangeset            /* OUT: Pointer to changeset blob */
+){
+  sqlite3_session *pSession = 0;
+  int rc;
+  int val = 1;
+
+  /* Create a new session object */
+  rc = sqlite3session_create(db, "main", &pSession);
+  sqlite3session_object_config(pSession, SQLITE_SESSION_OBJCONFIG_ROWID, &val);
+
+  /* Configure the session object to record changes to all tables */
+  if( rc==SQLITE_OK ) rc = sqlite3session_attach(pSession, NULL);
+
+  /* Execute the SQL script */
+  if( rc==SQLITE_OK ) rc = sqlite3_exec(db, zSql, 0, 0, 0);
+
+  /* Collect the changeset */
+  if( rc==SQLITE_OK ){
+    rc = sqlite3session_changeset(pSession, pnChangeset, ppChangeset);
+  }
+
+  /* Delete the session object */
+  sqlite3session_delete(pSession);
+
+  return rc;
+}
+/************************************************************************/
+
+
+#ifdef SQLITE_DEBUG
+static int sqlite3_test_changeset(int, void *, char **);
+static void assert_changeset_is_ok(int n, void *p){
+  char *z = 0;
+  (void)sqlite3_test_changeset(n, p, &z);
+  assert( z==0 );
+}
+#else
+# define assert_changeset_is_ok(n,p)
+#endif
+
+/*
+** Tclcmd: sql_exec_changeset DB SQL
+*/
+static int SQLITE_TCLAPI test_sql_exec_changeset(
+  void * clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  const char *zSql;
+  sqlite3 *db;
+  void *pChangeset;
+  int nChangeset;
+  int rc;
+
+  if( objc!=3 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "DB SQL");
+    return TCL_ERROR;
+  }
+  if( dbHandleFromObj(interp, objv[1], &db) ) return TCL_ERROR;
+  zSql = (const char*)Tcl_GetString(objv[2]);
+
+  rc = sql_exec_changeset(db, zSql, &nChangeset, &pChangeset);
+  if( rc!=SQLITE_OK ){
+    Tcl_ResetResult(interp);
+    Tcl_AppendResult(interp, "error in sql_exec_changeset()", 0);
+    return TCL_ERROR;
+  }
+
+  assert_changeset_is_ok(nChangeset, pChangeset);
+  Tcl_SetObjResult(interp, Tcl_NewByteArrayObj(pChangeset, nChangeset));
+  sqlite3_free(pChangeset);
+  return TCL_OK;
+}
+
+
+
+#define SESSION_STREAM_TCL_VAR "sqlite3session_streams"
+
+/*
+** Attempt to find the global variable zVar within interpreter interp
+** and extract an integer value from it. Return this value.
+**
+** If the named variable cannot be found, or if it cannot be interpreted
+** as a integer, return 0.
+*/
+static int test_tcl_integer(Tcl_Interp *interp, const char *zVar){
+  Tcl_Obj *pObj;
+  int iVal = 0;
+  Tcl_Obj *pName = Tcl_NewStringObj(zVar, -1);
+  Tcl_IncrRefCount(pName);
+  pObj = Tcl_ObjGetVar2(interp, pName, 0, TCL_GLOBAL_ONLY);
+  Tcl_DecrRefCount(pName);
+  if( pObj ) Tcl_GetIntFromObj(0, pObj, &iVal);
+  return iVal;
+}
+
+static int test_session_error(Tcl_Interp *interp, int rc, char *zErr){
+  extern const char *sqlite3ErrName(int);
+  Tcl_SetObjResult(interp, Tcl_NewStringObj(sqlite3ErrName(rc), -1));
+  if( zErr ){
+    Tcl_AppendResult(interp, " - ", zErr, 0);
+    sqlite3_free(zErr);
+  }
+  return TCL_ERROR;
+}
+
+static int test_table_filter(void *pCtx, const char *zTbl){
+  TestSession *p = (TestSession*)pCtx;
+  Tcl_Obj *pEval;
+  int rc;
+  int bRes = 0;
+
+  pEval = Tcl_DuplicateObj(p->pFilterScript);
+  Tcl_IncrRefCount(pEval);
+  rc = Tcl_ListObjAppendElement(p->interp, pEval, Tcl_NewStringObj(zTbl, -1));
+  if( rc==TCL_OK ){
+    rc = Tcl_EvalObjEx(p->interp, pEval, TCL_EVAL_GLOBAL);
+  }
+  if( rc==TCL_OK ){
+    rc = Tcl_GetBooleanFromObj(p->interp, Tcl_GetObjResult(p->interp), &bRes);
+  }
+  if( rc!=TCL_OK ){
+    /* printf("error: %s\n", Tcl_GetStringResult(p->interp)); */
+    Tcl_BackgroundError(p->interp);
+  }
+  Tcl_DecrRefCount(pEval);
+
+  return bRes;
+}
+
+struct TestSessionsBlob {
+  void *p;
+  int n;
+};
+typedef struct TestSessionsBlob TestSessionsBlob;
+
+static int testStreamOutput(
+  void *pCtx,
+  const void *pData,
+  int nData
+){
+  TestSessionsBlob *pBlob = (TestSessionsBlob*)pCtx;
+  char *pNew;
+
+  assert( nData>0 );
+  pNew = (char*)sqlite3_realloc(pBlob->p, pBlob->n + nData);
+  if( pNew==0 ){
+    return SQLITE_NOMEM;
+  }
+  pBlob->p = (void*)pNew;
+  memcpy(&pNew[pBlob->n], pData, nData);
+  pBlob->n += nData;
+  return SQLITE_OK;
+}
+
+/*
+** Tclcmd:  $session attach TABLE
+**          $session changeset
+**          $session delete
+**          $session enable BOOL
+**          $session indirect INTEGER
+**          $session patchset
+**          $session table_filter SCRIPT
+*/
+static int SQLITE_TCLAPI test_session_cmd(
+  void *clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  TestSession *p = (TestSession*)clientData;
+  sqlite3_session *pSession = p->pSession;
+  static struct SessionSubcmd {
+    const char *zSub;
+    int nArg;
+    const char *zMsg;
+    int iSub;
+  } aSub[] = {
+    { "attach",       1, "TABLE",      }, /* 0 */
+    { "changeset",    0, "",           }, /* 1 */
+    { "delete",       0, "",           }, /* 2 */
+    { "enable",       1, "BOOL",       }, /* 3 */
+    { "indirect",     1, "BOOL",       }, /* 4 */
+    { "isempty",      0, "",           }, /* 5 */
+    { "table_filter", 1, "SCRIPT",     }, /* 6 */
+    { "patchset",     0, "",           }, /* 7 */
+    { "diff",         2, "FROMDB TBL", }, /* 8 */
+    { "memory_used",  0, "",           }, /* 9 */
+    { "changeset_size", 0, "",         }, /* 10 */
+    { "object_config", 2, "OPTION INTEGER", }, /* 11 */
+    { 0 }
+  };
+  int iSub;
+  int rc;
+
+  if( objc<2 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "SUBCOMMAND ...");
+    return TCL_ERROR;
+  }
+  rc = Tcl_GetIndexFromObjStruct(interp, 
+      objv[1], aSub, sizeof(aSub[0]), "sub-command", 0, &iSub
+  );
+  if( rc!=TCL_OK ) return rc;
+  if( objc!=2+aSub[iSub].nArg ){
+    Tcl_WrongNumArgs(interp, 2, objv, aSub[iSub].zMsg);
+    return TCL_ERROR;
+  }
+
+  switch( iSub ){
+    case 0: {      /* attach */
+      char *zArg = Tcl_GetString(objv[2]);
+      if( zArg[0]=='*' && zArg[1]=='\0' ) zArg = 0;
+      rc = sqlite3session_attach(pSession, zArg);
+      if( rc!=SQLITE_OK ){
+        return test_session_error(interp, rc, 0);
+      }
+      break;
+    }
+
+    case 7:        /* patchset */
+    case 1: {      /* changeset */
+      TestSessionsBlob o = {0, 0};
+      if( test_tcl_integer(interp, SESSION_STREAM_TCL_VAR) ){
+        void *pCtx = (void*)&o;
+        if( iSub==7 ){
+          rc = sqlite3session_patchset_strm(pSession, testStreamOutput, pCtx);
+        }else{
+          rc = sqlite3session_changeset_strm(pSession, testStreamOutput, pCtx);
+        }
+      }else{
+        if( iSub==7 ){
+          rc = sqlite3session_patchset(pSession, &o.n, &o.p);
+        }else{
+          rc = sqlite3session_changeset(pSession, &o.n, &o.p);
+        }
+      }
+      if( rc==SQLITE_OK ){
+        assert_changeset_is_ok(o.n, o.p);
+        Tcl_SetObjResult(interp, Tcl_NewByteArrayObj(o.p, o.n)); 
+      }
+      sqlite3_free(o.p);
+      if( rc!=SQLITE_OK ){
+        return test_session_error(interp, rc, 0);
+      }
+      break;
+    }
+
+    case 2:        /* delete */
+      Tcl_DeleteCommand(interp, Tcl_GetString(objv[0]));
+      break;
+
+    case 3: {      /* enable */
+      int val;
+      if( Tcl_GetIntFromObj(interp, objv[2], &val) ) return TCL_ERROR;
+      val = sqlite3session_enable(pSession, val);
+      Tcl_SetObjResult(interp, Tcl_NewBooleanObj(val));
+      break;
+    }
+
+    case 4: {      /* indirect */
+      int val;
+      if( Tcl_GetIntFromObj(interp, objv[2], &val) ) return TCL_ERROR;
+      val = sqlite3session_indirect(pSession, val);
+      Tcl_SetObjResult(interp, Tcl_NewBooleanObj(val));
+      break;
+    }
+
+    case 5: {      /* isempty */
+      int val;
+      val = sqlite3session_isempty(pSession);
+      Tcl_SetObjResult(interp, Tcl_NewBooleanObj(val));
+      break;
+    }
+            
+    case 6: {      /* table_filter */
+      if( p->pFilterScript ) Tcl_DecrRefCount(p->pFilterScript);
+      p->interp = interp;
+      p->pFilterScript = Tcl_DuplicateObj(objv[2]);
+      Tcl_IncrRefCount(p->pFilterScript);
+      sqlite3session_table_filter(pSession, test_table_filter, clientData);
+      break;
+    }
+
+    case 8: {      /* diff */
+      char *zErr = 0;
+      rc = sqlite3session_diff(pSession, 
+          Tcl_GetString(objv[2]),
+          Tcl_GetString(objv[3]),
+          &zErr
+      );
+      assert( rc!=SQLITE_OK || zErr==0 );
+      if( rc ){
+        return test_session_error(interp, rc, zErr);
+      }
+      break;
+    }
+
+    case 9: {      /* memory_used */
+      sqlite3_int64 nMalloc = sqlite3session_memory_used(pSession);
+      Tcl_SetObjResult(interp, Tcl_NewWideIntObj(nMalloc));
+      break;
+    }
+
+    case 10: {
+      sqlite3_int64 nSize = sqlite3session_changeset_size(pSession);
+      Tcl_SetObjResult(interp, Tcl_NewWideIntObj(nSize));
+      break;
+    }
+    case 11: {    /* object_config */
+      struct ObjConfOpt {
+        const char *zName;
+        int opt;
+      } aOpt[] = {
+        { "size", SQLITE_SESSION_OBJCONFIG_SIZE },
+        { "rowid", SQLITE_SESSION_OBJCONFIG_ROWID },
+        { 0, 0 }
+      };
+      int sz = (int)sizeof(aOpt[0]);
+
+      int iArg;
+      Tcl_Size iOpt;
+      if( Tcl_GetIndexFromObjStruct(interp,objv[2],aOpt,sz,"option",0,&iOpt) ){
+        return TCL_ERROR;
+      }
+      if( Tcl_GetIntFromObj(interp, objv[3], &iArg) ){
+        return TCL_ERROR;
+      }
+      rc = sqlite3session_object_config(pSession, aOpt[iOpt].opt, &iArg);
+      if( rc!=SQLITE_OK ){
+        extern const char *sqlite3ErrName(int);
+        Tcl_SetObjResult(interp, Tcl_NewStringObj(sqlite3ErrName(rc), -1));
+      }else{
+        Tcl_SetObjResult(interp, Tcl_NewIntObj(iArg));
+      }
+      break;
+    }
+  }
+
+  return TCL_OK;
+}
+
+static void SQLITE_TCLAPI test_session_del(void *clientData){
+  TestSession *p = (TestSession*)clientData;
+  if( p->pFilterScript ) Tcl_DecrRefCount(p->pFilterScript);
+  sqlite3session_delete(p->pSession);
+  ckfree((char*)p);
+}
+
+/*
+** Tclcmd:  sqlite3session CMD DB-HANDLE DB-NAME
+*/
+static int SQLITE_TCLAPI test_sqlite3session(
+  void * clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  sqlite3 *db;
+  Tcl_CmdInfo info;
+  int rc;                         /* sqlite3session_create() return code */
+  TestSession *p;                 /* New wrapper object */
+  int iArg = -1;
+
+  if( objc!=4 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "CMD DB-HANDLE DB-NAME");
+    return TCL_ERROR;
+  }
+
+  if( 0==Tcl_GetCommandInfo(interp, Tcl_GetString(objv[2]), &info) ){
+    Tcl_AppendResult(interp, "no such handle: ", Tcl_GetString(objv[2]), 0);
+    return TCL_ERROR;
+  }
+  db = *(sqlite3 **)info.objClientData;
+
+  p = (TestSession*)ckalloc(sizeof(TestSession));
+  memset(p, 0, sizeof(TestSession));
+  rc = sqlite3session_create(db, Tcl_GetString(objv[3]), &p->pSession);
+  if( rc!=SQLITE_OK ){
+    ckfree((char*)p);
+    return test_session_error(interp, rc, 0);
+  }
+
+  /* Query the SQLITE_SESSION_OBJCONFIG_SIZE option to ensure that it
+  ** is clear by default. Then set it. */
+  sqlite3session_object_config(p->pSession,SQLITE_SESSION_OBJCONFIG_SIZE,&iArg);
+  assert( iArg==0 );
+  iArg = 1;
+  sqlite3session_object_config(p->pSession,SQLITE_SESSION_OBJCONFIG_SIZE,&iArg);
+
+  Tcl_CreateObjCommand(
+      interp, Tcl_GetString(objv[1]), test_session_cmd, (ClientData)p,
+      test_session_del
+  );
+  Tcl_SetObjResult(interp, objv[1]);
+  return TCL_OK;
+}
+
+static void test_append_value(Tcl_Obj *pList, sqlite3_value *pVal){
+  if( pVal==0 ){
+    Tcl_ListObjAppendElement(0, pList, Tcl_NewObj());
+    Tcl_ListObjAppendElement(0, pList, Tcl_NewObj());
+  }else{
+    Tcl_Obj *pObj;
+    switch( sqlite3_value_type(pVal) ){
+      case SQLITE_NULL:
+        Tcl_ListObjAppendElement(0, pList, Tcl_NewStringObj("n", 1));
+        pObj = Tcl_NewObj();
+        break;
+      case SQLITE_INTEGER:
+        Tcl_ListObjAppendElement(0, pList, Tcl_NewStringObj("i", 1));
+        pObj = Tcl_NewWideIntObj(sqlite3_value_int64(pVal));
+        break;
+      case SQLITE_FLOAT:
+        Tcl_ListObjAppendElement(0, pList, Tcl_NewStringObj("f", 1));
+        pObj = Tcl_NewDoubleObj(sqlite3_value_double(pVal));
+        break;
+      case SQLITE_TEXT: {
+        const char *z = (char*)sqlite3_value_blob(pVal);
+        int n = sqlite3_value_bytes(pVal);
+        Tcl_ListObjAppendElement(0, pList, Tcl_NewStringObj("t", 1));
+        pObj = Tcl_NewStringObj(z, n);
+        break;
+      }
+      default:
+        assert( sqlite3_value_type(pVal)==SQLITE_BLOB );
+        Tcl_ListObjAppendElement(0, pList, Tcl_NewStringObj("b", 1));
+        pObj = Tcl_NewByteArrayObj(
+            sqlite3_value_blob(pVal),
+            sqlite3_value_bytes(pVal)
+        );
+        break;
+    }
+    Tcl_ListObjAppendElement(0, pList, pObj);
+  }
+}
+
+typedef struct TestConflictHandler TestConflictHandler;
+struct TestConflictHandler {
+  Tcl_Interp *interp;
+  Tcl_Obj *pConflictScript;
+  Tcl_Obj *pFilterScript;
+};
+
+static int test_obj_eq_string(Tcl_Obj *p, const char *z){
+  Tcl_Size n;
+  Tcl_Size nObj;
+  char *zObj;
+
+  n = (Tcl_Size)strlen(z);
+  zObj = Tcl_GetStringFromObj(p, &nObj);
+
+  return (nObj==n && (n==0 || 0==memcmp(zObj, z, n)));
+}
+
+static int test_filter_handler(
+  void *pCtx,                     /* Pointer to TestConflictHandler structure */
+  const char *zTab                /* Table name */
+){
+  TestConflictHandler *p = (TestConflictHandler *)pCtx;
+  int res = 1;
+  Tcl_Obj *pEval;
+  Tcl_Interp *interp = p->interp;
+
+  pEval = Tcl_DuplicateObj(p->pFilterScript);
+  Tcl_IncrRefCount(pEval);
+
+  if( TCL_OK!=Tcl_ListObjAppendElement(0, pEval, Tcl_NewStringObj(zTab, -1))
+   || TCL_OK!=Tcl_EvalObjEx(interp, pEval, TCL_EVAL_GLOBAL) 
+   || TCL_OK!=Tcl_GetIntFromObj(interp, Tcl_GetObjResult(interp), &res)
+  ){
+    Tcl_BackgroundError(interp);
+  }
+
+  Tcl_DecrRefCount(pEval);
+  return res;
+}  
+
+static int test_conflict_handler(
+  void *pCtx,                     /* Pointer to TestConflictHandler structure */
+  int eConf,                      /* DATA, MISSING, CONFLICT, CONSTRAINT */
+  sqlite3_changeset_iter *pIter   /* Handle describing change and conflict */
+){
+  TestConflictHandler *p = (TestConflictHandler *)pCtx;
+  Tcl_Obj *pEval;
+  Tcl_Interp *interp = p->interp;
+  int ret = 0;                    /* Return value */
+
+  int op;                         /* SQLITE_UPDATE, DELETE or INSERT */
+  const char *zTab;               /* Name of table conflict is on */
+  int nCol;                       /* Number of columns in table zTab */
+
+  pEval = Tcl_DuplicateObj(p->pConflictScript);
+  Tcl_IncrRefCount(pEval);
+
+  sqlite3changeset_op(pIter, &zTab, &nCol, &op, 0);
+
+  if( eConf==SQLITE_CHANGESET_FOREIGN_KEY ){
+    int nFk;
+    sqlite3changeset_fk_conflicts(pIter, &nFk);
+    Tcl_ListObjAppendElement(0, pEval, Tcl_NewStringObj("FOREIGN_KEY", -1));
+    Tcl_ListObjAppendElement(0, pEval, Tcl_NewIntObj(nFk));
+  }else{
+
+    /* Append the operation type. */
+    Tcl_ListObjAppendElement(0, pEval, Tcl_NewStringObj(
+        op==SQLITE_INSERT ? "INSERT" :
+        op==SQLITE_UPDATE ? "UPDATE" : 
+        "DELETE", -1
+    ));
+  
+    /* Append the table name. */
+    Tcl_ListObjAppendElement(0, pEval, Tcl_NewStringObj(zTab, -1));
+  
+    /* Append the conflict type. */
+    switch( eConf ){
+      case SQLITE_CHANGESET_DATA:
+        Tcl_ListObjAppendElement(interp, pEval,Tcl_NewStringObj("DATA",-1));
+        break;
+      case SQLITE_CHANGESET_NOTFOUND:
+        Tcl_ListObjAppendElement(interp, pEval,Tcl_NewStringObj("NOTFOUND",-1));
+        break;
+      case SQLITE_CHANGESET_CONFLICT:
+        Tcl_ListObjAppendElement(interp, pEval,Tcl_NewStringObj("CONFLICT",-1));
+        break;
+      case SQLITE_CHANGESET_CONSTRAINT:
+        Tcl_ListObjAppendElement(interp, pEval,Tcl_NewStringObj("CONSTRAINT",-1));
+        break;
+    }
+  
+    /* If this is not an INSERT, append the old row */
+    if( op!=SQLITE_INSERT ){
+      int i;
+      Tcl_Obj *pOld = Tcl_NewObj();
+      for(i=0; i<nCol; i++){
+        sqlite3_value *pVal;
+        sqlite3changeset_old(pIter, i, &pVal);
+        test_append_value(pOld, pVal);
+      }
+      Tcl_ListObjAppendElement(0, pEval, pOld);
+    }
+
+    /* If this is not a DELETE, append the new row */
+    if( op!=SQLITE_DELETE ){
+      int i;
+      Tcl_Obj *pNew = Tcl_NewObj();
+      for(i=0; i<nCol; i++){
+        sqlite3_value *pVal;
+        sqlite3changeset_new(pIter, i, &pVal);
+        test_append_value(pNew, pVal);
+      }
+      Tcl_ListObjAppendElement(0, pEval, pNew);
+    }
+
+    /* If this is a CHANGESET_DATA or CHANGESET_CONFLICT conflict, append
+     ** the conflicting row.  */
+    if( eConf==SQLITE_CHANGESET_DATA || eConf==SQLITE_CHANGESET_CONFLICT ){
+      int i;
+      Tcl_Obj *pConflict = Tcl_NewObj();
+      for(i=0; i<nCol; i++){
+        int rc;
+        sqlite3_value *pVal;
+        rc = sqlite3changeset_conflict(pIter, i, &pVal);
+        assert( rc==SQLITE_OK );
+        test_append_value(pConflict, pVal);
+      }
+      Tcl_ListObjAppendElement(0, pEval, pConflict);
+    }
+
+    /***********************************************************************
+     ** This block is purely for testing some error conditions.
+     */
+    if( eConf==SQLITE_CHANGESET_CONSTRAINT 
+     || eConf==SQLITE_CHANGESET_NOTFOUND 
+    ){
+      sqlite3_value *pVal;
+      int rc = sqlite3changeset_conflict(pIter, 0, &pVal);
+      assert( rc==SQLITE_MISUSE );
+    }else{
+      sqlite3_value *pVal;
+      int rc = sqlite3changeset_conflict(pIter, -1, &pVal);
+      assert( rc==SQLITE_RANGE );
+      rc = sqlite3changeset_conflict(pIter, nCol, &pVal);
+      assert( rc==SQLITE_RANGE );
+    }
+    if( op==SQLITE_DELETE ){
+      sqlite3_value *pVal;
+      int rc = sqlite3changeset_new(pIter, 0, &pVal);
+      assert( rc==SQLITE_MISUSE );
+    }else{
+      sqlite3_value *pVal;
+      int rc = sqlite3changeset_new(pIter, -1, &pVal);
+      assert( rc==SQLITE_RANGE );
+      rc = sqlite3changeset_new(pIter, nCol, &pVal);
+      assert( rc==SQLITE_RANGE );
+    }
+    if( op==SQLITE_INSERT ){
+      sqlite3_value *pVal;
+      int rc = sqlite3changeset_old(pIter, 0, &pVal);
+      assert( rc==SQLITE_MISUSE );
+    }else{
+      sqlite3_value *pVal;
+      int rc = sqlite3changeset_old(pIter, -1, &pVal);
+      assert( rc==SQLITE_RANGE );
+      rc = sqlite3changeset_old(pIter, nCol, &pVal);
+      assert( rc==SQLITE_RANGE );
+    }
+    if( eConf!=SQLITE_CHANGESET_FOREIGN_KEY ){
+      /* eConf!=FOREIGN_KEY is always true at this point. The condition is 
+      ** just there to make it clearer what is being tested.  */
+      int nDummy;
+      int rc = sqlite3changeset_fk_conflicts(pIter, &nDummy);
+      assert( rc==SQLITE_MISUSE );
+    }
+    /* End of testing block
+    ***********************************************************************/
+  }
+
+  if( TCL_OK!=Tcl_EvalObjEx(interp, pEval, TCL_EVAL_GLOBAL) ){
+    Tcl_BackgroundError(interp);
+  }else{
+    Tcl_Obj *pRes = Tcl_GetObjResult(interp);
+    if( test_obj_eq_string(pRes, "OMIT") || test_obj_eq_string(pRes, "") ){
+      ret = SQLITE_CHANGESET_OMIT;
+    }else if( test_obj_eq_string(pRes, "REPLACE") ){
+      ret = SQLITE_CHANGESET_REPLACE;
+    }else if( test_obj_eq_string(pRes, "ABORT") ){
+      ret = SQLITE_CHANGESET_ABORT;
+    }else{
+      Tcl_GetIntFromObj(0, pRes, &ret);
+    }
+  }
+
+  Tcl_DecrRefCount(pEval);
+  return ret;
+}
+
+/*
+** The conflict handler used by sqlite3changeset_apply_replace_all(). 
+** This conflict handler calls sqlite3_value_text16() on all available
+** sqlite3_value objects and then returns CHANGESET_REPLACE, or 
+** CHANGESET_OMIT if REPLACE is not applicable. This is used to test the
+** effect of a malloc failure within an sqlite3_value_xxx() function
+** invoked by a conflict-handler callback.
+*/
+static int replace_handler(
+  void *pCtx,                     /* Pointer to TestConflictHandler structure */
+  int eConf,                      /* DATA, MISSING, CONFLICT, CONSTRAINT */
+  sqlite3_changeset_iter *pIter   /* Handle describing change and conflict */
+){
+  int op;                         /* SQLITE_UPDATE, DELETE or INSERT */
+  const char *zTab;               /* Name of table conflict is on */
+  int nCol;                       /* Number of columns in table zTab */
+  int i;
+  int x = 0;
+
+  sqlite3changeset_op(pIter, &zTab, &nCol, &op, 0);
+
+  if( op!=SQLITE_INSERT ){
+    for(i=0; i<nCol; i++){
+      sqlite3_value *pVal;
+      sqlite3changeset_old(pIter, i, &pVal);
+      sqlite3_value_text16(pVal);
+      x++;
+    }
+  }
+
+  if( op!=SQLITE_DELETE ){
+    for(i=0; i<nCol; i++){
+      sqlite3_value *pVal;
+      sqlite3changeset_new(pIter, i, &pVal);
+      sqlite3_value_text16(pVal);
+      x++;
+    }
+  }
+
+  if( eConf==SQLITE_CHANGESET_DATA ){
+    return SQLITE_CHANGESET_REPLACE;
+  }
+  return SQLITE_CHANGESET_OMIT;
+}
+
+static int testStreamInput(
+  void *pCtx,                     /* Context pointer */
+  void *pData,                    /* Buffer to populate */
+  int *pnData                     /* IN/OUT: Bytes requested/supplied */
+){
+  TestStreamInput *p = (TestStreamInput*)pCtx;
+  int nReq = *pnData;             /* Bytes of data requested */
+  int nRem = p->nData - p->iData; /* Bytes of data available */
+  int nRet = p->nStream;          /* Bytes actually returned */
+
+  /* Allocate and free some space. There is no point to this, other than
+  ** that it allows the regular OOM fault-injection tests to cause an error
+  ** in this function.  */
+  void *pAlloc = sqlite3_malloc(10);
+  if( pAlloc==0 ) return SQLITE_NOMEM;
+  sqlite3_free(pAlloc);
+
+  if( nRet>nReq ) nRet = nReq;
+  if( nRet>nRem ) nRet = nRem;
+
+  assert( nRet>=0 );
+  if( nRet>0 ){
+    memcpy(pData, &p->aData[p->iData], nRet);
+    p->iData += nRet;
+  }
+
+  *pnData = nRet;
+  return SQLITE_OK;
+}
+
+
+static int SQLITE_TCLAPI testSqlite3changesetApply(
+  int bV2,
+  void * clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  sqlite3 *db;                    /* Database handle */
+  Tcl_CmdInfo info;               /* Database Tcl command (objv[1]) info */
+  int rc;                         /* Return code from changeset_invert() */
+  void *pChangeset;               /* Buffer containing changeset */
+  Tcl_Size nChangeset;            /* Size of buffer aChangeset in bytes */
+  TestConflictHandler ctx;
+  TestStreamInput sStr;
+  void *pRebase = 0;
+  int nRebase = 0;
+  int flags = 0;                  /* Flags for apply_v2() */
+
+  memset(&sStr, 0, sizeof(sStr));
+  sStr.nStream = test_tcl_integer(interp, SESSION_STREAM_TCL_VAR);
+
+  /* Check for the -nosavepoint, -invert or -ignorenoop switches */
+  if( bV2 ){
+    while( objc>1 ){
+      const char *z1 = Tcl_GetString(objv[1]);
+      int n = (int)strlen(z1);
+      if( n>3 && n<=12 && 0==sqlite3_strnicmp("-nosavepoint", z1, n) ){
+        flags |= SQLITE_CHANGESETAPPLY_NOSAVEPOINT;
+      }
+      else if( n>3 && n<=9 && 0==sqlite3_strnicmp("-noaction", z1, n) ){
+        flags |= SQLITE_CHANGESETAPPLY_FKNOACTION;
+      }
+      else if( n>2 && n<=7 && 0==sqlite3_strnicmp("-invert", z1, n) ){
+        flags |= SQLITE_CHANGESETAPPLY_INVERT;
+      }
+      else if( n>2 && n<=11 && 0==sqlite3_strnicmp("-ignorenoop", z1, n) ){
+        flags |= SQLITE_CHANGESETAPPLY_IGNORENOOP;
+      }else{
+        break;
+      }
+      objc--;
+      objv++;
+    }
+  }
+
+  if( objc!=4 && objc!=5 ){
+    const char *zMsg;
+    if( bV2 ){
+      zMsg = "?-nosavepoint? ?-inverse? ?-ignorenoop? "
+        "DB CHANGESET CONFLICT-SCRIPT ?FILTER-SCRIPT?";
+    }else{
+      zMsg = "DB CHANGESET CONFLICT-SCRIPT ?FILTER-SCRIPT?";
+    }
+    Tcl_WrongNumArgs(interp, 1, objv, zMsg);
+    return TCL_ERROR;
+  }
+  if( 0==Tcl_GetCommandInfo(interp, Tcl_GetString(objv[1]), &info) ){
+    Tcl_AppendResult(interp, "no such handle: ", Tcl_GetString(objv[1]), 0);
+    return TCL_ERROR;
+  }
+  db = *(sqlite3 **)info.objClientData;
+  pChangeset = (void *)Tcl_GetByteArrayFromObj(objv[2], &nChangeset);
+  ctx.pConflictScript = objv[3];
+  ctx.pFilterScript = objc==5 ? objv[4] : 0;
+  ctx.interp = interp;
+
+  if( sStr.nStream==0 ){
+    if( bV2==0 ){
+      rc = sqlite3changeset_apply(db, (int)nChangeset, pChangeset, 
+          (objc==5)?test_filter_handler:0, test_conflict_handler, (void *)&ctx
+      );
+    }else{
+      rc = sqlite3changeset_apply_v2(db, (int)nChangeset, pChangeset, 
+          (objc==5)?test_filter_handler:0, test_conflict_handler, (void *)&ctx,
+          &pRebase, &nRebase, flags
+      );
+    }
+  }else{
+    sStr.aData = (unsigned char*)pChangeset;
+    sStr.nData = (int)nChangeset;
+    if( bV2==0 ){
+      rc = sqlite3changeset_apply_strm(db, testStreamInput, (void*)&sStr,
+          (objc==5) ? test_filter_handler : 0, 
+          test_conflict_handler, (void *)&ctx
+      );
+    }else{
+      rc = sqlite3changeset_apply_v2_strm(db, testStreamInput, (void*)&sStr,
+          (objc==5) ? test_filter_handler : 0, 
+          test_conflict_handler, (void *)&ctx,
+          &pRebase, &nRebase, flags
+      );
+    }
+  }
+
+  if( rc!=SQLITE_OK ){
+    return test_session_error(interp, rc, 0);
+  }else{
+    Tcl_ResetResult(interp);
+    if( bV2 && pRebase ){
+      Tcl_SetObjResult(interp, Tcl_NewByteArrayObj(pRebase, nRebase));
+    }
+  }
+  sqlite3_free(pRebase);
+  return TCL_OK;
+}
+
+/*
+** sqlite3changeset_apply DB CHANGESET CONFLICT-SCRIPT ?FILTER-SCRIPT?
+*/
+static int SQLITE_TCLAPI test_sqlite3changeset_apply(
+  void * clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  return testSqlite3changesetApply(0, clientData, interp, objc, objv);
+}
+/*
+** sqlite3changeset_apply_v2 DB CHANGESET CONFLICT-SCRIPT ?FILTER-SCRIPT?
+*/
+static int SQLITE_TCLAPI test_sqlite3changeset_apply_v2(
+  void * clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  return testSqlite3changesetApply(1, clientData, interp, objc, objv);
+}
+
+/*
+** sqlite3changeset_apply_replace_all DB CHANGESET 
+*/
+static int SQLITE_TCLAPI test_sqlite3changeset_apply_replace_all(
+  void * clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  sqlite3 *db;                    /* Database handle */
+  Tcl_CmdInfo info;               /* Database Tcl command (objv[1]) info */
+  int rc;                         /* Return code from changeset_invert() */
+  void *pChangeset;               /* Buffer containing changeset */
+  Tcl_Size nChangeset;            /* Size of buffer aChangeset in bytes */
+
+  if( objc!=3 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "DB CHANGESET");
+    return TCL_ERROR;
+  }
+  if( 0==Tcl_GetCommandInfo(interp, Tcl_GetString(objv[1]), &info) ){
+    Tcl_AppendResult(interp, "no such handle: ", Tcl_GetString(objv[2]), 0);
+    return TCL_ERROR;
+  }
+  db = *(sqlite3 **)info.objClientData;
+  pChangeset = (void *)Tcl_GetByteArrayFromObj(objv[2], &nChangeset);
+
+  rc = sqlite3changeset_apply(db, (int)nChangeset, pChangeset,
+                              0, replace_handler,0);
+  if( rc!=SQLITE_OK ){
+    return test_session_error(interp, rc, 0);
+  }
+  Tcl_ResetResult(interp);
+  return TCL_OK;
+}
+
+
+/*
+** sqlite3changeset_invert CHANGESET
+*/
+static int SQLITE_TCLAPI test_sqlite3changeset_invert(
+  void * clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  int rc;                         /* Return code from changeset_invert() */
+  Tcl_Size nn;
+  TestStreamInput sIn;            /* Input stream */
+  TestSessionsBlob sOut;          /* Output blob */
+
+  if( objc!=2 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "CHANGESET");
+    return TCL_ERROR;
+  }
+
+  memset(&sIn, 0, sizeof(sIn));
+  memset(&sOut, 0, sizeof(sOut));
+  sIn.nStream = test_tcl_integer(interp, SESSION_STREAM_TCL_VAR);
+  sIn.aData = Tcl_GetByteArrayFromObj(objv[1], &nn);
+  sIn.nData = (int)nn;
+
+  if( sIn.nStream ){
+    rc = sqlite3changeset_invert_strm(
+        testStreamInput, (void*)&sIn, testStreamOutput, (void*)&sOut
+    );
+  }else{
+    rc = sqlite3changeset_invert(sIn.nData, sIn.aData, &sOut.n, &sOut.p);
+  }
+  if( rc!=SQLITE_OK ){
+    rc = test_session_error(interp, rc, 0);
+  }else{
+    assert_changeset_is_ok(sOut.n, sOut.p);
+    Tcl_SetObjResult(interp,Tcl_NewByteArrayObj((unsigned char*)sOut.p,sOut.n));
+  }
+  sqlite3_free(sOut.p);
+  return rc;
+}
+
+/*
+** sqlite3changeset_concat LEFT RIGHT
+*/
+static int SQLITE_TCLAPI test_sqlite3changeset_concat(
+  void * clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  int rc;                         /* Return code from changeset_invert() */
+  Tcl_Size nn;
+
+  TestStreamInput sLeft;          /* Input stream */
+  TestStreamInput sRight;         /* Input stream */
+  TestSessionsBlob sOut = {0,0};  /* Output blob */
+
+  if( objc!=3 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "LEFT RIGHT");
+    return TCL_ERROR;
+  }
+
+  memset(&sLeft, 0, sizeof(sLeft));
+  memset(&sRight, 0, sizeof(sRight));
+  sLeft.aData = Tcl_GetByteArrayFromObj(objv[1], &nn);
+  sLeft.nData = (int)nn;
+  sRight.aData = Tcl_GetByteArrayFromObj(objv[2], &nn);
+  sRight.nData = (int)nn;
+  sLeft.nStream = test_tcl_integer(interp, SESSION_STREAM_TCL_VAR);
+  sRight.nStream = sLeft.nStream;
+
+  if( sLeft.nStream>0 ){
+    rc = sqlite3changeset_concat_strm(
+        testStreamInput, (void*)&sLeft,
+        testStreamInput, (void*)&sRight,
+        testStreamOutput, (void*)&sOut
+    );
+  }else{
+    rc = sqlite3changeset_concat(
+        sLeft.nData, sLeft.aData, sRight.nData, sRight.aData, &sOut.n, &sOut.p
+    );
+  }
+
+  if( rc!=SQLITE_OK ){
+    rc = test_session_error(interp, rc, 0);
+  }else{
+    assert_changeset_is_ok(sOut.n, sOut.p);
+    Tcl_SetObjResult(interp,Tcl_NewByteArrayObj((unsigned char*)sOut.p,sOut.n));
+  }
+  sqlite3_free(sOut.p);
+  return rc;
+}
+
+static Tcl_Obj *testIterData(sqlite3_changeset_iter *pIter){
+  Tcl_Obj *pVar = 0;
+  int nCol;                       /* Number of columns in table */
+  int nCol2;                      /* Number of columns in table */
+  int op;                         /* SQLITE_INSERT, UPDATE or DELETE */
+  const char *zTab;               /* Name of table change applies to */
+  Tcl_Obj *pOld;                  /* Vector of old.* values */
+  Tcl_Obj *pNew;                  /* Vector of new.* values */
+  int bIndirect;
+    
+  char *zPK;
+  unsigned char *abPK;
+  int i;
+
+  sqlite3changeset_op(pIter, &zTab, &nCol, &op, &bIndirect);
+  pVar = Tcl_NewObj();
+
+  Tcl_ListObjAppendElement(0, pVar, Tcl_NewStringObj(
+        op==SQLITE_INSERT ? "INSERT" :
+        op==SQLITE_UPDATE ? "UPDATE" : 
+        "DELETE", -1
+  ));
+
+  Tcl_ListObjAppendElement(0, pVar, Tcl_NewStringObj(zTab, -1));
+  Tcl_ListObjAppendElement(0, pVar, Tcl_NewBooleanObj(bIndirect));
+
+  zPK = ckalloc(nCol+1);
+  memset(zPK, 0, nCol+1);
+  sqlite3changeset_pk(pIter, &abPK, &nCol2);
+  assert( nCol==nCol2 );
+  for(i=0; i<nCol; i++){
+    zPK[i] = (abPK[i] ? 'X' : '.');
+  }
+  Tcl_ListObjAppendElement(0, pVar, Tcl_NewStringObj(zPK, -1));
+  ckfree(zPK);
+
+  pOld = Tcl_NewObj();
+  if( op!=SQLITE_INSERT ){
+    for(i=0; i<nCol; i++){
+      sqlite3_value *pVal;
+      sqlite3changeset_old(pIter, i, &pVal);
+      test_append_value(pOld, pVal);
+    }
+  }
+  pNew = Tcl_NewObj();
+  if( op!=SQLITE_DELETE ){
+    for(i=0; i<nCol; i++){
+      sqlite3_value *pVal;
+      sqlite3changeset_new(pIter, i, &pVal);
+      test_append_value(pNew, pVal);
+    }
+  }
+  Tcl_ListObjAppendElement(0, pVar, pOld);
+  Tcl_ListObjAppendElement(0, pVar, pNew);
+
+  return pVar;
+}
+
+/*
+** sqlite3session_foreach VARNAME CHANGESET SCRIPT
+*/
+static int SQLITE_TCLAPI test_sqlite3session_foreach(
+  void * clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  void *pChangeset;
+  Tcl_Size nChangeset;
+  sqlite3_changeset_iter *pIter;
+  int rc;
+  Tcl_Obj *pVarname;
+  Tcl_Obj *pCS;
+  Tcl_Obj *pScript;
+  int isCheckNext = 0;
+  int isInvert = 0;
+
+  TestStreamInput sStr;
+  memset(&sStr, 0, sizeof(sStr));
+
+  while( objc>1 ){
+    char *zOpt = Tcl_GetString(objv[1]);
+    int nOpt = (int)strlen(zOpt);
+    if( zOpt[0]!='-' ) break;
+    if( nOpt<=7 && 0==sqlite3_strnicmp(zOpt, "-invert", nOpt) ){
+      isInvert = 1;
+    }else
+    if( nOpt<=5 && 0==sqlite3_strnicmp(zOpt, "-next", nOpt) ){
+      isCheckNext = 1;
+    }else{
+      break;
+    }
+    objv++;
+    objc--;
+  }
+  if( objc!=4 ){
+    Tcl_WrongNumArgs(
+        interp, 1, objv, "?-next? ?-invert? VARNAME CHANGESET SCRIPT");
+    return TCL_ERROR;
+  }
+
+  pVarname = objv[1];
+  pCS = objv[2];
+  pScript = objv[3];
+
+  pChangeset = (void *)Tcl_GetByteArrayFromObj(pCS, &nChangeset);
+  sStr.nStream = test_tcl_integer(interp, SESSION_STREAM_TCL_VAR);
+  if( isInvert ){
+    int f = SQLITE_CHANGESETSTART_INVERT;
+    if( sStr.nStream==0 ){
+      rc = sqlite3changeset_start_v2(&pIter, (int)nChangeset, pChangeset, f);
+    }else{
+      void *pCtx = (void*)&sStr;
+      sStr.aData = (unsigned char*)pChangeset;
+      sStr.nData = (int)nChangeset;
+      rc = sqlite3changeset_start_v2_strm(&pIter, testStreamInput, pCtx, f);
+    }
+  }else{
+    if( sStr.nStream==0 ){
+      rc = sqlite3changeset_start(&pIter, (int)nChangeset, pChangeset);
+    }else{
+      sStr.aData = (unsigned char*)pChangeset;
+      sStr.nData = (int)nChangeset;
+      rc = sqlite3changeset_start_strm(&pIter, testStreamInput, (void*)&sStr);
+    }
+  }
+  if( rc!=SQLITE_OK ){
+    return test_session_error(interp, rc, 0);
+  }
+
+  while( SQLITE_ROW==sqlite3changeset_next(pIter) ){
+    Tcl_Obj *pVar = 0;            /* Tcl value to set $VARNAME to */
+    pVar = testIterData(pIter);
+    Tcl_ObjSetVar2(interp, pVarname, 0, pVar, 0);
+    rc = Tcl_EvalObjEx(interp, pScript, 0);
+    if( rc!=TCL_OK && rc!=TCL_CONTINUE ){
+      sqlite3changeset_finalize(pIter);
+      return rc==TCL_BREAK ? TCL_OK : rc;
+    }
+  }
+
+  if( isCheckNext ){
+    int rc2 = sqlite3changeset_next(pIter);
+    rc = sqlite3changeset_finalize(pIter);
+    assert( (rc2==SQLITE_DONE && rc==SQLITE_OK) || rc2==rc );
+  }else{
+    rc = sqlite3changeset_finalize(pIter);
+  }
+  if( rc!=SQLITE_OK ){
+    return test_session_error(interp, rc, 0);
+  }
+
+  return TCL_OK;
+}
+
+/*
+** tclcmd: CMD configure REBASE-BLOB
+** tclcmd: CMD rebase CHANGESET
+** tclcmd: CMD delete
+*/
+static int SQLITE_TCLAPI test_rebaser_cmd(
+  void * clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  static struct RebaseSubcmd {
+    const char *zSub;
+    int nArg;
+    const char *zMsg;
+    int iSub;
+  } aSub[] = {
+    { "configure",    1, "REBASE-BLOB" }, /* 0 */
+    { "delete",       0, ""            }, /* 1 */
+    { "rebase",       1, "CHANGESET"   }, /* 2 */
+    { 0 }
+  };
+
+  sqlite3_rebaser *p = (sqlite3_rebaser*)clientData;
+  int iSub;
+  int rc;
+
+  if( objc<2 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "SUBCOMMAND ...");
+    return TCL_ERROR;
+  }
+  rc = Tcl_GetIndexFromObjStruct(interp, 
+      objv[1], aSub, sizeof(aSub[0]), "sub-command", 0, &iSub
+  );
+  if( rc!=TCL_OK ) return rc;
+  if( objc!=2+aSub[iSub].nArg ){
+    Tcl_WrongNumArgs(interp, 2, objv, aSub[iSub].zMsg);
+    return TCL_ERROR;
+  }
+
+  assert( iSub==0 || iSub==1 || iSub==2 );
+  assert( rc==SQLITE_OK );
+  switch( iSub ){
+    case 0: {   /* configure */
+      Tcl_Size nRebase = 0;
+      unsigned char *pRebase = Tcl_GetByteArrayFromObj(objv[2], &nRebase);
+      rc = sqlite3rebaser_configure(p, (int)nRebase, pRebase);
+      break;
+    }
+
+    case 1:     /* delete */
+      Tcl_DeleteCommand(interp, Tcl_GetString(objv[0]));
+      break;
+
+    default: {  /* rebase */
+      TestStreamInput sStr;                 /* Input stream */
+      TestSessionsBlob sOut;                /* Output blob */
+      Tcl_Size nn;
+
+      memset(&sStr, 0, sizeof(sStr));
+      memset(&sOut, 0, sizeof(sOut));
+      sStr.aData = Tcl_GetByteArrayFromObj(objv[2], &nn);
+      sStr.nData = nn;
+      sStr.nStream = test_tcl_integer(interp, SESSION_STREAM_TCL_VAR);
+
+      if( sStr.nStream ){
+        rc = sqlite3rebaser_rebase_strm(p, 
+            testStreamInput, (void*)&sStr,
+            testStreamOutput, (void*)&sOut
+        );
+      }else{
+        rc = sqlite3rebaser_rebase(p, sStr.nData, sStr.aData, &sOut.n, &sOut.p);
+      }
+
+      if( rc==SQLITE_OK ){
+        assert_changeset_is_ok(sOut.n, sOut.p);
+        Tcl_SetObjResult(interp, Tcl_NewByteArrayObj(sOut.p, sOut.n));
+      }
+      sqlite3_free(sOut.p);
+      break;
+    }
+  }
+
+  if( rc!=SQLITE_OK ){
+    return test_session_error(interp, rc, 0);
+  }
+  return TCL_OK;
+}
+
+static void SQLITE_TCLAPI test_rebaser_del(void *clientData){
+  sqlite3_rebaser *p = (sqlite3_rebaser*)clientData;
+  sqlite3rebaser_delete(p);
+}
+
+/*
+** tclcmd: sqlite3rebaser_create NAME
+*/
+static int SQLITE_TCLAPI test_sqlite3rebaser_create(
+  void * clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  int rc;
+  sqlite3_rebaser *pNew = 0;
+  if( objc!=2 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "NAME");
+    return SQLITE_ERROR;
+  }
+
+  rc = sqlite3rebaser_create(&pNew);
+  if( rc!=SQLITE_OK ){
+    return test_session_error(interp, rc, 0);
+  }
+
+  Tcl_CreateObjCommand(interp, Tcl_GetString(objv[1]), test_rebaser_cmd,
+      (ClientData)pNew, test_rebaser_del
+  );
+  Tcl_SetObjResult(interp, objv[1]);
+  return TCL_OK;
+}
+
+/*
+** Run some sanity checks on the changeset in nChangeset byte buffer
+** pChangeset. If any fail, return a non-zero value and, optionally,
+** set output variable (*pzErr) to point to a buffer containing an
+** English language error message describing the problem. In this
+** case it is the responsibility of the caller to free the buffer
+** using sqlite3_free().
+**
+** Or, if the changeset appears to be well-formed, this function
+** returns SQLITE_OK and sets (*pzErr) to NULL.
+*/
+static int sqlite3_test_changeset(
+  int nChangeset,
+  void *pChangeset,
+  char **pzErr
+){
+  sqlite3_changeset_iter *pIter = 0;
+  char *zErr = 0;
+  int rc = SQLITE_OK;
+  int bPatch = (nChangeset>0 && ((char*)pChangeset)[0]=='P');
+
+  rc = sqlite3changeset_start(&pIter, nChangeset, pChangeset);
+  if( rc==SQLITE_OK ){
+    int rc2;
+    while( rc==SQLITE_OK && SQLITE_ROW==sqlite3changeset_next(pIter) ){
+      unsigned char *aPk = 0;
+      int nCol = 0;
+      int op = 0;
+      const char *zTab = 0;
+
+      sqlite3changeset_pk(pIter, &aPk, &nCol);
+      sqlite3changeset_op(pIter, &zTab, &nCol, &op, 0);
+
+      if( op==SQLITE_UPDATE ){
+        int iCol;
+        for(iCol=0; iCol<nCol; iCol++){
+          sqlite3_value *pNew = 0;
+          sqlite3_value *pOld = 0;
+          sqlite3changeset_new(pIter, iCol, &pNew);
+          sqlite3changeset_old(pIter, iCol, &pOld);
+
+          if( aPk[iCol] ){
+            if( pOld==0 ) rc = SQLITE_ERROR;
+          }else if( bPatch ){
+            if( pOld ) rc = SQLITE_ERROR;
+          }else{
+            if( (pOld==0)!=(pNew==0) ) rc = SQLITE_ERROR;
+          }
+
+          if( rc!=SQLITE_OK ){
+            zErr = sqlite3_mprintf(
+                "unexpected SQLITE_UPDATE (bPatch=%d pk=%d pOld=%d pNew=%d)",
+                bPatch, (int)aPk[iCol], pOld!=0, pNew!=0
+            );
+            break;
+          }
+        }
+      }
+    }
+    rc2 = sqlite3changeset_finalize(pIter);
+    if( rc==SQLITE_OK ){
+      rc = rc2;
+    }
+  }
+
+  *pzErr = zErr;
+  return rc;
+}
+
+/*
+** test_changeset CHANGESET
+*/
+static int SQLITE_TCLAPI test_changeset(
+  void * clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  void *pChangeset = 0;           /* Buffer containing changeset */
+  Tcl_Size nChangeset = 0;        /* Size of buffer aChangeset in bytes */
+  int rc = SQLITE_OK;
+  char *z = 0;
+
+  if( objc!=2 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "CHANGESET");
+    return TCL_ERROR;
+  }
+  pChangeset = (void *)Tcl_GetByteArrayFromObj(objv[1], &nChangeset);
+
+  Tcl_ResetResult(interp);
+  rc = sqlite3_test_changeset((int)nChangeset, pChangeset, &z);
+  if( rc!=SQLITE_OK ){
+    char *zErr = sqlite3_mprintf("(%d) - \"%s\"", rc, z);
+    Tcl_SetObjResult(interp, Tcl_NewStringObj(zErr, -1));
+    sqlite3_free(zErr);
+  }
+  sqlite3_free(z);
+
+  return rc ? TCL_ERROR : TCL_OK;
+}
+
+/*
+** tclcmd: sqlite3rebaser_configure OP VALUE
+*/
+static int SQLITE_TCLAPI test_sqlite3session_config(
+  void * clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  static struct ConfigOpt {
+    const char *zSub;
+    int op;
+  } aSub[] = {
+    { "strm_size",    SQLITE_SESSION_CONFIG_STRMSIZE },
+    { "invalid",      0 },
+    { 0 }
+  };
+  int rc;
+  int iSub;
+  int iVal;
+
+  if( objc!=3 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "OP VALUE");
+    return SQLITE_ERROR;
+  }
+  rc = Tcl_GetIndexFromObjStruct(interp, 
+      objv[1], aSub, sizeof(aSub[0]), "sub-command", 0, &iSub
+  );
+  if( rc!=TCL_OK ) return rc;
+  if( Tcl_GetIntFromObj(interp, objv[2], &iVal) ) return TCL_ERROR;
+
+  rc = sqlite3session_config(aSub[iSub].op, (void*)&iVal);
+  if( rc!=SQLITE_OK ){
+    return test_session_error(interp, rc, 0);
+  }
+  Tcl_SetObjResult(interp, Tcl_NewIntObj(iVal));
+  return TCL_OK;
+}
+
+typedef struct TestChangegroup TestChangegroup;
+struct TestChangegroup {
+  sqlite3_changegroup *pGrp;
+};
+
+typedef struct TestChangeIter TestChangeIter;
+struct TestChangeIter {
+  sqlite3_changeset_iter *pIter;
+};
+
+
+/*
+** Destructor for Tcl changegroup command object.
+*/
+static void test_changegroup_del(void *clientData){
+  TestChangegroup *pGrp = (TestChangegroup*)clientData;
+  sqlite3changegroup_delete(pGrp->pGrp);
+  ckfree(pGrp);
+}
+
+/*
+** Tclcmd:  $changegroup schema DB DBNAME
+** Tclcmd:  $changegroup add CHANGESET
+** Tclcmd:  $changegroup output
+** Tclcmd:  $changegroup delete
+*/
+static int SQLITE_TCLAPI test_changegroup_cmd(
+  void * clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  TestChangegroup *p = (TestChangegroup*)clientData;
+  static struct ChangegroupCmd {
+    const char *zSub;
+    int nArg;
+    const char *zMsg;
+    int iSub;
+  } aSub[] = {
+    { "schema",       2, "DB DBNAME",  }, /* 0 */
+    { "add",          1, "CHANGESET",  }, /* 1 */
+    { "output",       0, "",           }, /* 2 */
+    { "delete",       0, "",           }, /* 3 */
+    { "add_change",   1, "ITERATOR",   }, /* 4 */
+    { 0 }
+  };
+  int rc = TCL_OK;
+  int iSub = 0;
+
+  if( objc<2 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "SUBCOMMAND ...");
+    return TCL_ERROR;
+  }
+  rc = Tcl_GetIndexFromObjStruct(interp, 
+      objv[1], aSub, sizeof(aSub[0]), "sub-command", 0, &iSub
+  );
+  if( rc!=TCL_OK ) return rc;
+  if( objc!=2+aSub[iSub].nArg ){
+    Tcl_WrongNumArgs(interp, 2, objv, aSub[iSub].zMsg);
+    return TCL_ERROR;
+  }
+
+  switch( iSub ){
+    case 0: {      /* schema */
+      sqlite3 *db = 0;
+      const char *zDb = Tcl_GetString(objv[3]);
+      if( dbHandleFromObj(interp, objv[2], &db) ){
+        return TCL_ERROR;
+      }
+      rc = sqlite3changegroup_schema(p->pGrp, db, zDb);
+      if( rc!=SQLITE_OK ) rc = test_session_error(interp, rc, 0);
+      break;
+    };
+
+    case 1: {      /* add */
+      Tcl_Size nByte = 0;
+      const u8 *aByte = Tcl_GetByteArrayFromObj(objv[2], &nByte);
+      rc = sqlite3changegroup_add(p->pGrp, (int)nByte, (void*)aByte);
+      if( rc!=SQLITE_OK ) rc = test_session_error(interp, rc, 0);
+      break;
+    };
+
+    case 2: {      /* output */
+      int nByte = 0;
+      u8 *aByte = 0;
+      rc = sqlite3changegroup_output(p->pGrp, &nByte, (void**)&aByte);
+      if( rc!=SQLITE_OK ){
+        rc = test_session_error(interp, rc, 0);
+      }else{
+        Tcl_SetObjResult(interp, Tcl_NewByteArrayObj(aByte, nByte));
+      }
+      sqlite3_free(aByte);
+      break;
+    };
+
+    case 4: {      /* add_change */
+      Tcl_CmdInfo cmdInfo;            /* Database Tcl command (objv[2]) info */
+      TestChangeIter *pIter = 0;
+      const char *zIter = Tcl_GetString(objv[2]);
+      if( 0==Tcl_GetCommandInfo(interp, zIter, &cmdInfo) ){
+        Tcl_AppendResult(interp, "no such iter: ", Tcl_GetString(objv[2]), 0);
+        return TCL_ERROR;
+      }
+
+      pIter = (struct TestChangeIter*)cmdInfo.objClientData;
+
+      rc = sqlite3changegroup_add_change(p->pGrp, pIter->pIter);
+      if( rc!=SQLITE_OK ){
+        rc = test_session_error(interp, rc, 0);
+      }
+      break;
+    };
+
+    default: {     /* delete */
+      assert( iSub==3 );
+      Tcl_DeleteCommand(interp, Tcl_GetString(objv[0]));
+      break;
+    }
+  }
+
+  return rc;
+}
+
+/*
+** Tclcmd:  sqlite3changegroup CMD
+*/
+static int SQLITE_TCLAPI test_sqlite3changegroup(
+  void * clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  int rc;                         /* sqlite3changegroup_new() return code */
+  TestChangegroup *p;             /* New wrapper object */
+
+  if( objc!=2 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "CMD");
+    return TCL_ERROR;
+  }
+
+  p = (TestChangegroup*)ckalloc(sizeof(TestChangegroup));
+  memset(p, 0, sizeof(TestChangegroup));
+  rc = sqlite3changegroup_new(&p->pGrp);
+  if( rc!=SQLITE_OK ){
+    ckfree((char*)p);
+    return test_session_error(interp, rc, 0);
+  }
+
+  Tcl_CreateObjCommand(
+      interp, Tcl_GetString(objv[1]), test_changegroup_cmd, (ClientData)p,
+      test_changegroup_del
+  );
+  Tcl_SetObjResult(interp, objv[1]);
+  return TCL_OK;
+}
+
+extern const char *sqlite3ErrName(int);
+
+/*
+** Destructor for Tcl iterator command object.
+*/
+static void test_iter_del(void *clientData){
+  TestChangeIter *p = (TestChangeIter*)clientData;
+  sqlite3changeset_finalize(p->pIter);
+  ckfree(p);
+}
+
+static int SQLITE_TCLAPI test_iter_cmd(
+  void * clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  static const char *aSub[] = {
+    "next",        /* 0 */
+    "data",        /* 1 */
+    "finalize",    /* 2 */
+    0
+  };
+  int iSub = 0;
+
+  TestChangeIter *p = (TestChangeIter*)clientData;
+  int rc = SQLITE_OK;
+
+  if( objc<2 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "CMD");
+    return TCL_ERROR;
+  }
+
+  if( Tcl_GetIndexFromObj(interp, objv[1], aSub, "sub-command", 0, &iSub) ){
+    return TCL_ERROR;
+  }
+  switch( iSub ){
+    case 0:
+      rc = sqlite3changeset_next(p->pIter);
+      Tcl_SetObjResult(interp, Tcl_NewStringObj(sqlite3ErrName(rc), -1));
+      break;
+    case 1:
+      Tcl_SetObjResult(interp, testIterData(p->pIter));
+      break;
+    case 2:
+      rc = sqlite3changeset_finalize(p->pIter);
+      p->pIter = 0;
+      Tcl_DeleteCommand(interp, Tcl_GetString(objv[0]));
+      Tcl_SetObjResult(interp, Tcl_NewStringObj(sqlite3ErrName(rc), -1));
+      break;
+    default:
+      assert( 0 );
+      break;
+  }
+
+  return TCL_OK;
+}
+
+/*
+** Tclcmd:  sqlite3changeset_start ?-invert? CHANGESET
+*/
+static int SQLITE_TCLAPI test_sqlite3changeset_start(
+  void * clientData,
+  Tcl_Interp *interp,
+  int objc,
+  Tcl_Obj *CONST objv[]
+){
+  int isInvert = 0;
+  void *pChangeset = 0;           /* Buffer containing changeset */
+  Tcl_Size nChangeset = 0;        /* Size of buffer aChangeset in bytes */
+  TestChangeIter *pNew = 0;
+  sqlite3_changeset_iter *pIter = 0;
+  int flags = 0;
+  int rc = SQLITE_OK;
+
+  static int iCmd = 1;
+  char zCmd[64];
+
+  if( objc==3 ){
+    Tcl_Size n = 0;
+    const char *z = Tcl_GetStringFromObj(objv[1], &n);
+    isInvert = (n>=2 && sqlite3_strnicmp(z, "-invert", (int)n)==0);
+  }
+
+  if( objc!=2 && (objc!=3 || !isInvert) ){
+    Tcl_WrongNumArgs(interp, 1, objv, "?-invert? CHANGESET");
+    return TCL_ERROR;
+  }
+
+  flags = isInvert ? SQLITE_CHANGESETSTART_INVERT : 0;
+  pChangeset = (void *)Tcl_GetByteArrayFromObj(objv[objc-1], &nChangeset);
+  rc = sqlite3changeset_start_v2(&pIter, (int)nChangeset, pChangeset, flags);
+  if( rc!=SQLITE_OK ){
+    char *zErr = sqlite3_mprintf(
+        "error in sqlite3changeset_start_v2() - %d", rc
+    );
+    Tcl_AppendResult(interp, zErr, (char*)0);
+    return TCL_ERROR;
+  }
+
+  pNew = (TestChangeIter*)ckalloc(sizeof(TestChangeIter));
+  pNew->pIter = pIter;
+
+  sprintf(zCmd, "csiter%d", iCmd++);
+  Tcl_CreateObjCommand(interp, zCmd, test_iter_cmd, (void*)pNew, test_iter_del);
+  Tcl_SetObjResult(interp, Tcl_NewStringObj(zCmd, -1));
+  return TCL_OK;
+}
+
+int TestSession_Init(Tcl_Interp *interp){
+  struct Cmd {
+    const char *zCmd;
+    Tcl_ObjCmdProc *xProc;
+  } aCmd[] = {
+    { "sqlite3session", test_sqlite3session },
+    { "sqlite3changegroup", test_sqlite3changegroup },
+    { "sqlite3changeset_start", test_sqlite3changeset_start },
+    { "sqlite3session_foreach", test_sqlite3session_foreach },
+    { "sqlite3changeset_invert", test_sqlite3changeset_invert },
+    { "sqlite3changeset_concat", test_sqlite3changeset_concat },
+    { "sqlite3changeset_apply", test_sqlite3changeset_apply },
+    { "sqlite3changeset_apply_v2", test_sqlite3changeset_apply_v2 },
+    { "sqlite3changeset_apply_replace_all", 
+      test_sqlite3changeset_apply_replace_all },
+    { "sql_exec_changeset", test_sql_exec_changeset },
+    { "sqlite3rebaser_create", test_sqlite3rebaser_create },
+    { "sqlite3session_config", test_sqlite3session_config },
+    { "test_changeset", test_changeset },
+  };
+  int i;
+
+  for(i=0; i<sizeof(aCmd)/sizeof(struct Cmd); i++){
+    struct Cmd *p = &aCmd[i];
+    Tcl_CreateObjCommand(interp, p->zCmd, p->xProc, 0, 0);
+  }
+
+  return TCL_OK;
+}
+
+#endif /* SQLITE_TEST && SQLITE_SESSION && SQLITE_PREUPDATE_HOOK */
diff --git a/ext/wasm/EXPORTED_FUNCTIONS.fiddle.in b/ext/wasm/EXPORTED_FUNCTIONS.fiddle.in
new file mode 100644
index 0000000000000000000000000000000000000000..103704df1051a22d2f7f95710261408d4cdc0b2a
--- /dev/null
+++ b/ext/wasm/EXPORTED_FUNCTIONS.fiddle.in
@@ -0,0 +1,10 @@
+_fiddle_db_arg
+_fiddle_db_filename
+_fiddle_exec
+_fiddle_experiment
+_fiddle_interrupt
+_fiddle_main
+_fiddle_reset_db
+_fiddle_db_handle
+_fiddle_db_vfs
+_fiddle_export_db
diff --git a/ext/wasm/GNUmakefile b/ext/wasm/GNUmakefile
new file mode 100644
index 0000000000000000000000000000000000000000..19ad7599057134ecee88d5fcf53c79d084443a37
--- /dev/null
+++ b/ext/wasm/GNUmakefile
@@ -0,0 +1,1211 @@
+#######################################################################
+# This GNU makefile drives the build of the sqlite3 WASM
+# components. It is not part of the canonical build process.
+#
+# This build assumes a Linux platform and is not intended for
+# general-purpose client-level use, except for creating builds with
+# custom configurations. It is primarily intended for the sqlite
+# project's own development of the JS/WASM components.
+#
+# Primary targets:
+#
+#  default, all = build in dev mode
+#
+#  o0, o1, o2, o3, os, oz = full clean/rebuild with the -Ox level indicated
+#      by the target name. Rebuild is necessary for all components to get
+#      the desired optimization level.
+#
+#  quick, q = do just build the essentials for testing
+#      (sqlite3.js/wasm, tester1) for faster development-mode
+#      turnaround.
+#
+#  dist = create end user deliverables. Add dist.build=oX to build
+#      with a specific optimization level, where oX is one of the
+#      above-listed o? or qo? target names.
+#
+#  snapshot = like dist, but uses a zip file name which clearly
+#      marks it as a prerelease/snapshot build.
+#
+#  clean = clean up
+#
+# Required tools beyond those needed for the canonical builds:
+#
+# - Emscripten SDK: https://emscripten.org/docs/getting_started/downloads.html
+# - The bash shell
+# - GNU make, GNU sed, GNU awk, GNU grep (all in the $PATH)
+# - wasm-strip for release builds: https://github.com/WebAssembly/wabt
+# - InfoZip for 'dist' zip file
+########################################################################
+default: all
+#default: quick
+SHELL := $(firstword $(shell which bash) $(wildcard /usr/local/bin/bash /usr/bin/bash /bin/bash))
+ifeq (,$(SHELL))
+  $(error Cannot find the bash shell)
+endif
+MAKEFILE := $(lastword $(MAKEFILE_LIST))
+CLEAN_FILES :=
+DISTCLEAN_FILES :=
+MAKING_CLEAN := $(if $(filter %clean,$(MAKECMDGOALS)),1,0)
+.PHONY: clean distclean
+clean:
+	-rm -f $(CLEAN_FILES)
+distclean: clean
+	-rm -f $(DISTCLEAN_FILES)
+
+########################################################################
+# JS_BUILD_NAMES exists for documentation purposes only. It enumerates
+# the core build styles:
+#
+# - sqlite3 = canonical library build
+#
+# - sqlite3-wasmfs = WASMFS-capable library build
+#
+JS_BUILD_NAMES := sqlite3 sqlite3-wasmfs
+
+########################################################################
+# JS_BUILD_MODES exists for documentation purposes only. It enumerates
+# the various "flavors" of build, each of which requires slight
+# customization of the output:
+#
+# - vanilla = plain-vanilla JS for use in browsers. This is the
+#   canonical build mode.
+#
+# - esm = ES6 module, a.k.a. ESM, for use in browsers.
+#
+# - bundler-friendly = esm slightly tweaked for "bundler"
+#   tools. Bundlers are invariably based on node.js, so these builds
+#   are intended to be read at build-time by node.js but with a final
+#   target of browsers.
+#
+# - node = for use by node.js for node.js, as opposed to by node.js on
+#   behalf o browser-side code (use bundler-friendly for that). Note
+#   that persistent storage (OPFS) is not available in these builds.
+#
+JS_BUILD_MODES := vanilla esm bunder-friendly node
+
+########################################################################
+# dir.top = the top dir of the canonical build tree, where
+# sqlite3.[ch] live.
+dir.top := ../..
+# Maintenance reminder: some Emscripten flags require absolute paths
+# but we want relative paths for most stuff simply to reduce
+# noise. The $(abspath...) GNU make function can transform relative
+# paths to absolute.
+dir.wasm := $(patsubst %/,%,$(dir $(MAKEFILE)))
+dir.api := api
+dir.jacc := jaccwabyt
+dir.common := common
+dir.fiddle := fiddle
+dir.fiddle-debug := fiddle-debug
+dir.tool := $(dir.top)/tool
+# dir.dout = output dir for deliverables
+dir.dout := $(dir.wasm)/jswasm
+# dir.tmp = output dir for intermediary build files, as opposed to
+# end-user deliverables.
+dir.tmp := $(dir.wasm)/bld
+dir.wasmfs := $(dir.dout)
+
+MKDIR.bld := $(dir.tmp)
+$(MKDIR.bld):
+	-mkdir -p $@ $(dir.dout)
+
+CLEAN_FILES += *~ $(dir.jacc)/*~ $(dir.api)/*~ $(dir.common)/*~ $(dir.fiddle)/*~ \
+  $(dir.fiddle-debug)/* $(dir.dout)/* $(dir.tmp)/*
+
+########################################################################
+# Set up sqlite3.c and sqlite3.h...
+#
+# To build with SEE (https://sqlite.org/see), either put sqlite3-see.c
+# in $(dir.top) or pass sqlite3.c=PATH_TO_sqlite3-see.c to the $(MAKE)
+# invocation. Note that only encryption modules with no 3rd-party
+# dependencies will currently work here: AES256-OFB, AES128-OFB, and
+# AES128-CCM. Not coincidentally, those 3 modules are included in the
+# sqlite3-see.c bundle. Note, however, that distributing an SEE build
+# of the WASM on a public site is in violation of the SEE license
+# because it effectively provides a usable copy of the SEE build to
+# all visitors.
+#
+# A custom sqlite3.c must not have any spaces in its name.
+# $(sqlite3.canonical.c) must point to the sqlite3.c in
+# the sqlite3 canonical source tree, as that source file
+# is required for certain utility and test code.
+sqlite3.canonical.c := $(dir.top)/sqlite3.c
+sqlite3.c ?= $(firstword $(wildcard $(dir.top)/sqlite3-see.c) $(sqlite3.canonical.c))
+sqlite3.h := $(dir.top)/sqlite3.h
+
+ifneq (1,$(MAKING_CLEAN))
+ifeq (,$(shell grep sqlite3_activate_see $(sqlite3.c)))
+  SQLITE_C_IS_SEE := 0
+else
+  SQLITE_C_IS_SEE := 1
+  $(info This is an SEE build)
+endif
+endif
+
+########################################################################@
+# It's important that sqlite3.h be built to completion before any
+# other parts of the build run, thus we use .NOTPARALLEL to disable
+# parallel build of that file and its dependants.
+.NOTPARALLEL: $(sqlite3.h)
+$(sqlite3.h):
+	$(MAKE) -C $(dir.top) sqlite3.c
+$(sqlite3.c): $(sqlite3.h)
+
+########################################################################
+# Special-case builds for which we require certain pre-conditions
+# which, if not met, may cause warnings or fatal errors in the build.
+# This also affects the default optimization level flags. Note that
+# the fiddle targets are in this list because they are used for
+# generating sqlite.org/fiddle.
+OPTIMIZED_TARGETS := dist snapshot fiddle fiddle.debug
+
+ifneq (1,$(MAKING_CLEAN))
+  ifeq (,$(filter $(OPTIMIZED_TARGETS),$(MAKECMDGOALS)))
+    $(info ==============================================================)
+    $(info == Development build. Make one of (dist, snapshot) for a)
+    $(info == smaller release build.)
+    $(info ==============================================================)
+  endif
+endif
+
+########################################################################
+# Find emcc (Emscripten compiler)...
+ifeq (1,$(MAKING_CLEAN))
+  emcc.bin := echo
+  emcc.version := unknown
+else
+  emcc.bin := $(dir.tool)/emcc.sh
+  ifeq (,$(wildcard $(emcc.bin)))
+    $(error Configure script did not find emcc.)
+  endif
+  emcc.version := $(shell $(emcc.bin) --version | sed -n 1p | sed -e 's/^.* \([3-9][^ ]*\) .*$$/\1/;')
+  $(info using emcc version [$(emcc.version)])
+endif
+#########################################################################
+# Find wasm-strip, which we need for release builds (see below for
+# why) but not strictly for non-release builds.
+ifeq (1,$(MAKING_CLEAN))
+  wasm-strip-bin := irrelevant
+else
+  wasm-strip.bin ?= $(shell which wasm-strip 2>/dev/null)
+  ifeq (,$(wasm-strip.bin))
+    $(info WARNING: *******************************************************************)
+    $(info WARNING: Builds using -O2/-O3/-Os/-Oz will minify WASM-exported names,)
+    $(info WARNING: breaking _All The Things_. The workaround for that is to build)
+    $(info WARNING: with -g3 (which explodes the file size) and then strip the debug)
+    $(info WARNING: info after compilation, using wasm-strip, to shrink the wasm file.)
+    $(info WARNING: wasm-strip was not found in the PATH so we cannot strip those.)
+    $(info WARNING: If this build uses any optimization level higher than -O1 then)
+    $(info WARNING: the ***resulting JS code WILL NOT BE USABLE***.)
+    $(info WARNING: wasm-strip is part of the wabt package:)
+    $(info WARNING:    https://github.com/WebAssembly/wabt)
+    $(info WARNING: on Ubuntu-like systems it can be installed with:)
+    $(info WARNING:    sudo apt install wabt)
+    $(info WARNING: *******************************************************************)
+    ifneq (,$(filter $(OPTIMIZED_TARGETS),$(MAKECMDGOALS)))
+      $(error Cannot make release-quality binary because wasm-strip is not available.)
+    endif
+    wasm-strip.bin := echo "not wasm-stripping"
+  endif
+endif
+maybe-wasm-strip := $(wasm-strip.bin)
+
+########################################################################
+# barebones=1 disables all "extraneous" stuff from sqlite3-wasm.c, the
+# goal being to create a WASM file with only the core APIs.
+ifeq (1,$(barebones))
+  wasm-bare-bones := 1
+  $(info ==============================================================)
+  $(info == This is a bare-bones build. It trades away features for)
+  $(info == a smaller .wasm file.)
+  $(info ==============================================================)
+else
+  wasm-bare-bones := 0
+endif
+# undefine barebones # relatively new gmake feature, not ubiquitous
+
+# Common options for building sqlite3-wasm.c and speedtest1.c.
+# Explicit ENABLEs...
+SQLITE_OPT.common := \
+  -DSQLITE_THREADSAFE=0 \
+  -DSQLITE_TEMP_STORE=2 \
+  -DSQLITE_ENABLE_MATH_FUNCTIONS \
+  -DSQLITE_OS_KV_OPTIONAL=1 \
+  '-DSQLITE_DEFAULT_UNIX_VFS="unix-none"' \
+  -DSQLITE_USE_URI=1 \
+  -DSQLITE_C=$(sqlite3.c) \
+  -DSQLITE_OMIT_DEPRECATED \
+  -DSQLITE_OMIT_UTF16 \
+  -DSQLITE_OMIT_LOAD_EXTENSION \
+  -DSQLITE_OMIT_SHARED_CACHE
+# ^^^ These particular OMITs are hard-coded in sqlite3-wasm.c and
+# removing them from this list will serve only to break the speedtest1
+# builds.
+
+# Currently always needed but TODO is paring tester1.c-pp.js down
+# to be able to run without this:
+SQLITE_OPT.common += -DSQLITE_WASM_ENABLE_C_TESTS
+
+# Extra flags for full-featured builds...
+SQLITE_OPT.full-featured := \
+  -DSQLITE_ENABLE_BYTECODE_VTAB \
+  -DSQLITE_ENABLE_DBPAGE_VTAB \
+  -DSQLITE_ENABLE_DBSTAT_VTAB \
+  -DSQLITE_ENABLE_FTS5 \
+  -DSQLITE_ENABLE_MATH_FUNCTIONS \
+  -DSQLITE_ENABLE_OFFSET_SQL_FUNC \
+  -DSQLITE_ENABLE_PREUPDATE_HOOK \
+  -DSQLITE_ENABLE_RTREE \
+  -DSQLITE_ENABLE_SESSION \
+  -DSQLITE_ENABLE_STMTVTAB \
+  -DSQLITE_ENABLE_UNKNOWN_SQL_FUNCTION
+
+ifeq (0,$(wasm-bare-bones))
+  # The so-called canonical build is full-featured:
+  SQLITE_OPT := \
+    $(SQLITE_OPT.common) \
+    $(SQLITE_OPT.full-featured)
+else
+  # The so-called bare-bones build is exactly that:
+  SQLITE_OPT := \
+    $(SQLITE_OPT.common) \
+    -DSQLITE_WASM_BARE_BONES
+  # SQLITE_WASM_BARE_BONES tells sqlite3-wasm.c to explicitly omit
+  # a bunch of stuff, in the interest of keeping the wasm file size
+  # down. As of this writing it equates to:
+  #
+  #  -USQLITE_ENABLE_DBPAGE_VTAB
+  #  -USQLITE_ENABLE_DBSTAT_VTAB
+  #  -USQLITE_ENABLE_EXPLAIN_COMMENTS
+  #  -USQLITE_ENABLE_FTS5
+  #  -USQLITE_ENABLE_OFFSET_SQL_FUNC
+  #  -USQLITE_ENABLE_PREUPDATE_HOOK
+  #  -USQLITE_ENABLE_RTREE
+  #  -USQLITE_ENABLE_SESSION
+  #  -USQLITE_ENABLE_STMTVTAB
+  #  -DSQLITE_OMIT_AUTHORIZATION
+  #  -DSQLITE_OMIT_GET_TABLE
+  #  -DSQLITE_OMIT_INCRBLOB
+  #  -DSQLITE_OMIT_INTROSPECTION_PRAGMAS
+  #  -DSQLITE_OMIT_JSON
+  #  -DSQLITE_OMIT_PROGRESS_CALLBACK
+  #  -DSQLITE_OMIT_WAL
+  #
+  # There are others we want here but which require explicit OMIT when
+  # creating their amalgamation, and that step is TODO:
+  #
+  #  -DSQLITE_OMIT_EXPLAIN
+  #  -DSQLITE_OMIT_TRIGGER
+  #  -DSQLITE_OMIT_VIRTUALTABLE
+  #  -DSQLITE_OMIT_WINDOWFUNC
+endif
+
+#SQLITE_OPT += -DSQLITE_DEBUG
+# Enabling SQLITE_DEBUG will break sqlite3_wasm_vfs_create_file()
+# (and thus sqlite3_js_vfs_create_file()). Those functions are
+# deprecated and alternatives are in place, but this crash behavior
+# can be used to find errant uses of sqlite3_js_vfs_create_file()
+# in client code.
+
+########################################################################
+# The following flags are hard-coded into sqlite3-wasm.c and cannot be
+# modified via the build process:
+#
+#  SQLITE_ENABLE_API_ARMOR
+#  SQLITE_OMIT_LOAD_EXTENSION
+#  SQLITE_OMIT_DEPRECATED
+#  SQLITE_OMIT_UTF16
+#  SQLITE_OMIT_SHARED_CACHE
+########################################################################
+
+
+########################################################################
+# Adding custom C code via sqlite3_wasm_extra_init.c:
+#
+# If the canonical build process finds the file
+# sqlite3_wasm_extra_init.c in the main wasm build directory, it
+# arranges to include that file in the build of sqlite3.wasm and
+# defines SQLITE_EXTRA_INIT=sqlite3_wasm_extra_init.
+#
+# sqlite3_wasm_extra_init() must be a function with this signature:
+#
+#  int sqlite3_wasm_extra_init(const char *)
+#
+# and the sqlite3 library will call it with an argument of NULL one
+# time during sqlite3_initialize(). If it returns non-0,
+# initialization of the library will fail.
+#
+# The filename can be overridden with:
+#
+#  make sqlite3_wasm_extra_init.c=my_custom_stuff.c
+#
+# See example_extra_init.c for an example implementation.
+########################################################################
+sqlite3_wasm_extra_init.c ?= $(wildcard sqlite3_wasm_extra_init.c)
+cflags.wasm_extra_init :=
+ifneq (,$(sqlite3_wasm_extra_init.c))
+  $(info Enabling SQLITE_EXTRA_INIT via $(sqlite3_wasm_extra_init.c).)
+  cflags.wasm_extra_init := -DSQLITE_WASM_EXTRA_INIT
+endif
+
+#########################################################################
+# bin.version-info = binary to output various sqlite3 version info for
+# embedding in the JS files and in building the distribution zip file.
+# It must NOT be in $(dir.tmp) because we need it to survive the
+# cleanup process for the dist build to work properly.
+#
+# Slight caveat: this uses the version info from the in-tree
+# sqlite3.c/h, which may diff from a user-provided $(sqlite3.c).  The
+# end result is that the generated JS files may have static version
+# info from $(bin.version-info) which differ from their runtime-emited
+# version info (e.g. from sqlite3_libversion()).
+bin.version-info := $(dir.top)/version-info
+.NOTPARALLEL: $(bin.version-info)
+$(bin.version-info): $(dir.tool)/version-info.c $(sqlite3.h) $(dir.top)/Makefile
+	$(MAKE) -C $(dir.top) version-info
+
+#########################################################################
+# bin.stripcomments is used for stripping C/C++-style comments from JS
+# files. The JS files contain large chunks of documentation which we
+# don't need for all builds. That app's -k flag is of particular
+# importance here, as it allows us to retain the opening comment
+# block(s), which contain the license header and version info.
+bin.stripccomments := $(dir.tool)/stripccomments
+$(bin.stripccomments): $(bin.stripccomments).c $(MAKEFILE)
+	$(CC) -o $@ $<
+DISTCLEAN_FILES += $(bin.stripccomments)
+
+########################################################################
+# bin.mkwb is used for generating some of the makefile code for the
+# various wasm builds. It used to be generated in this makefile via a
+# difficult-to-read/maintain block of $(eval)'d code. Attempts were
+# made to generate it from tcl and bash (shell) but having to escape
+# the $ references in those languages made it just as illegible as the
+# native makefile code. Somewhat surprisingly, moving that code generation
+# to C makes it slightly less illegible than the previous 3 options.
+bin.mkwb := ./mkwasmbuilds
+$(bin.mkwb): $(bin.mkwb).c $(MAKEFILE)
+	$(CC) -o $@ $<
+DISTCLEAN_FILES += $(bin.mkwb)
+
+########################################################################
+# C-PP.FILTER: a $(call)able to transform $(1) to $(2) via:
+#
+#   ./c-pp -f $(1) -o $(2) $(3)
+#
+# Historical notes:
+#
+# - We first attempted to use gcc and/or clang to preprocess JS files
+#   in the same way we would normally do C files, but C-specific quirks
+#   of each makes that untennable.
+#
+# - We implemented c-pp.c (the C-Minus Pre-processor) as a custom
+#   generic/file-format-agnostic preprocessor to enable us to pack
+#   code for different target builds into the same JS files. Most
+#   notably, some ES6 module (a.k.a. ESM) features cannot legally be
+#   referenced at all in non-ESM code, e.g.  the "import" and "export"
+#   keywords. This preprocessing step permits us to swap out sections
+#   of code where necessary for ESM and non-ESM (a.k.a. vanilla JS)
+#   require different implementations. The alternative to such
+#   preprocessing, would be to have separate source files for ES6
+#   builds, which would have a higher maintenance burden than c-pp.c
+#   seems likely to.
+#
+# c-pp.c was written specifically for the sqlite project's JavaScript
+# builds but is maintained as a standalone project:
+# https://fossil.wanderinghorse.net/r/c-pp
+#
+# Note that the SQLITE_... build flags used here have NO EFFECT on the
+# JS/WASM build. They are solely for use with $(bin.c-pp) itself.
+#
+# -D... flags which should be included in all invocations should be
+# appended to $(C-PP.FILTER.global).
+bin.c-pp := ./c-pp
+$(bin.c-pp): c-pp.c $(sqlite3.c) $(MAKEFILE)
+	$(CC) -O0 -o $@ c-pp.c $(sqlite3.c) '-DCMPP_DEFAULT_DELIM="//#"' -I$(dir.top) \
+		-DSQLITE_OMIT_LOAD_EXTENSION -DSQLITE_OMIT_DEPRECATED -DSQLITE_OMIT_UTF16 \
+		-DSQLITE_OMIT_SHARED_CACHE -DSQLITE_OMIT_WAL -DSQLITE_THREADSAFE=0 \
+		-DSQLITE_TEMP_STORE=3
+DISTCLEAN_FILES += $(bin.c-pp)
+C-PP.FILTER.global ?=
+ifeq (1,$(SQLITE_C_IS_SEE))
+  C-PP.FILTER.global += -Denable-see
+endif
+define C-PP.FILTER
+# Create $2 from $1 using $(bin.c-pp)
+# $1 = Input file: c-pp -f $(1).js
+# $2 = Output file: c-pp -o $(2).js
+# $3 = optional c-pp -D... flags
+$(2): $(1) $$(MAKEFILE) $$(bin.c-pp)
+	$$(bin.c-pp) -f $(1) -o $$@ $(3) $(C-PP.FILTER.global)
+#CLEAN_FILES += $(2)
+endef
+# /end C-PP.FILTER
+########################################################################
+
+# cflags.common = C compiler flags for all builds
+cflags.common :=  -I. -I$(dir $(sqlite3.c))
+# emcc.WASM_BIGINT = 1 for BigInt (C int64) support, else 0.  The API
+# disables certain features if BigInt is not enabled and such builds
+# _are not tested_ on any regular basis.
+emcc.WASM_BIGINT ?= 1
+
+# emcc_opt = optimization-related flags. These are primarily used by
+# the various oX targets. build times for -O levels higher than 0 are
+# painful at dev-time.
+#
+# When running any of the $(OPTIMIZED_TARGETS) explicitly, e.g. for a
+# release distribution, use a higher optimization level. Experience
+# has shown -Oz to produce the smallest deliverables with only a
+# roughly 10% performance hit in the resulting WASM file compared to
+# -O2 (which consistently creates the fastest-running deliverables).
+ifeq (,$(filter $(OPTIMIZED_TARGETS),$(MAKECMDGOALS)))
+  emcc_opt ?= -O0
+else
+  emcc_opt ?= -Oz
+endif
+
+# When passing emcc_opt from the CLI, += and re-assignment have no
+# effect, so emcc_opt+=-g3 doesn't work. So...
+emcc_opt_full := $(emcc_opt) -g3
+# ^^^ ALWAYS use -g3. See below for why.
+#
+# ^^^ -flto improves runtime speed at -O0 considerably but doubles
+# build time.
+#
+# ^^^^ (-O3, -Oz, -Os) all minify symbol names and there appears to be
+# no way around that except to use -g3, but -g3 causes the binary file
+# size to absolutely explode (approx. 5x larger). This minification
+# utterly breaks the resulting module, making it unsable except as
+# self-contained/self-referential-only code, as ALL of the exported
+# symbols get minified names.
+#
+# However, we have an option for using -Oz or -Os:
+#
+# Build with (-Os -g3) or (-Oz -g3) then use wasm-strip, from the wabt
+# tools package (https://github.com/WebAssembly/wabt), to strip the
+# debugging symbols. That results in a small build with unmangled
+# symbol names. -Oz gives ever-so-slightly better compression than
+# -Os: not quite 1% in some completely unscientific tests. Runtime
+# speed for the unit tests is all over the place either way so it's
+# difficult to say whether -Os gives any speed benefit over -Oz.
+#
+# Much practice has demonstrated that -O2 consistently gives the best
+# runtime speeds, but not by a large enough factor to rule out use of
+# -Oz when small deliverable size is a priority.
+########################################################################
+
+########################################################################
+# EXPORTED_FUNCTIONS.* = files for use with Emscripten's
+# -sEXPORTED_FUNCTION flag.
+EXPORTED_FUNCTIONS.api.core := $(dir.api)/EXPORTED_FUNCTIONS.sqlite3-core
+EXPORTED_FUNCTIONS.api.in := $(EXPORTED_FUNCTIONS.api.core)
+ifeq (1,$(SQLITE_C_IS_SEE))
+  EXPORTED_FUNCTIONS.api.in += $(dir.api)/EXPORTED_FUNCTIONS.sqlite3-see
+endif
+ifeq (0,$(wasm-bare-bones))
+  EXPORTED_FUNCTIONS.api.in += $(dir.api)/EXPORTED_FUNCTIONS.sqlite3-extras
+endif
+EXPORTED_FUNCTIONS.api := $(dir.tmp)/EXPORTED_FUNCTIONS.api
+$(EXPORTED_FUNCTIONS.api): $(MKDIR.bld) $(EXPORTED_FUNCTIONS.api.in) $(sqlite3.c) $(MAKEFILE)
+	cat $(EXPORTED_FUNCTIONS.api.in) > $@
+
+########################################################################
+# sqlite3-license-version.js = generated JS file with the license
+# header and version info.
+sqlite3-license-version.js := $(dir.tmp)/sqlite3-license-version.js
+# sqlite3-license-version-header.js = JS file containing only the
+# license header.
+sqlite3-license-version-header.js := $(dir.api)/sqlite3-license-version-header.js
+# sqlite3-api-build-version.js = generated JS file which populates the
+# sqlite3.version object using $(bin.version-info).
+sqlite3-api-build-version.js := $(dir.tmp)/sqlite3-api-build-version.js
+# sqlite3-api.jses = the list of JS files which make up
+# $(sqlite3-api.js.in), in the order they need to be assembled.
+sqlite3-api.jses := $(sqlite3-license-version.js)
+# sqlite3-api-prologue.js: initial boostrapping bits:
+sqlite3-api.jses += $(dir.api)/sqlite3-api-prologue.js
+# whwhasm.js and jaccwabyt.js: Low-level utils, mostly replacing
+# Emscripten glue:
+sqlite3-api.jses += $(dir.common)/whwasmutil.js
+sqlite3-api.jses += $(dir.jacc)/jaccwabyt.js
+# sqlite3-api-glue Glues the previous part together with sqlite:
+sqlite3-api.jses += $(dir.api)/sqlite3-api-glue.c-pp.js
+# $(sqlite3-api-build-version.js) = library version info
+sqlite3-api.jses += $(sqlite3-api-build-version.js)
+# sqlite3-api-oo1 = the oo1 API:
+sqlite3-api.jses += $(dir.api)/sqlite3-api-oo1.c-pp.js
+# sqlite3-api-worker = the Worker1 API:
+sqlite3-api.jses += $(dir.api)/sqlite3-api-worker1.c-pp.js
+# sqlite3-vfs-helper = helper APIs for VFSes:
+sqlite3-api.jses += $(dir.api)/sqlite3-vfs-helper.c-pp.js
+ifeq (0,$(wasm-bare-bones))
+  # sqlite3-vtab-helper = helper APIs for VTABLEs:
+  sqlite3-api.jses += $(dir.api)/sqlite3-vtab-helper.c-pp.js
+endif
+# sqlite3-vfs-opfs = the first OPFS VFS:
+sqlite3-api.jses += $(dir.api)/sqlite3-vfs-opfs.c-pp.js
+# sqlite3-vfs-opfs-sahpool = the second OPFS VFS:
+sqlite3-api.jses += $(dir.api)/sqlite3-vfs-opfs-sahpool.c-pp.js
+# sqlite3-api-cleanup.js = "finalizes" the build and cleans up
+# any extraneous global symbols which are needed temporarily
+# by the previous files.
+sqlite3-api.jses += $(dir.api)/sqlite3-api-cleanup.js
+
+########################################################################
+# SOAP.js is an external API file which is part of our distribution
+# but not part of the sqlite3-api.js amalgamation. It's a component of
+# the first OPFS VFS and necessarily an external file.
+SOAP.js := $(dir.api)/sqlite3-opfs-async-proxy.js
+SOAP.js.bld := $(dir.dout)/$(notdir $(SOAP.js))
+#
+# $(sqlite3-api.ext.jses) = API-related files which are standalone files,
+#   not part of the amalgamation.
+#
+sqlite3-api.ext.jses := $(SOAP.js.bld)
+$(SOAP.js.bld): $(SOAP.js)
+	cp $< $@
+
+########################################################################
+# $(sqlite3-api*.*js) contain the core library code but not the
+# Emscripten-related glue which deals with loading sqlite3.wasm. In
+# theory they can be used by arbitrary build environments and WASM
+# loaders, but in practice that breaks down because the WASM loader
+# has to be able to provide all of the necessary "imports" to
+# sqlite3.wasm, and that list of imports is unknown until sqlite3.wasm
+# is compiled, at which point Emscripten sets up the imports
+# appropriately. Abstractly speaking, it's impossible for other build
+# environments to know exactly which imports are needed and provide
+# them. Tools like wasm-objdump can be used to find the list of
+# imports but it's questionable whether a non-Emscripten tool could
+# realistically use that info to provide proper implementations.
+# Sidebar: some of the imports are used soley by the Emscripten glue,
+# which the sqlite3 JS code does not rely on.
+#
+# We build $(sqlite3-api*.*) "because we can" and because it might be
+# a useful point of experimentation for some clients, but the
+# above-described caveat may well make them unusable for real-life
+# clients.
+#
+# sqlite3-api.js.in = the generated sqlite3-api.js before it gets
+# preprocessed. It contains all of $(sqlite3-api.jses) but none of the
+# Emscripten-specific headers and footers.
+sqlite3-api.js.in := $(dir.tmp)/sqlite3-api.c-pp.js
+$(sqlite3-api.js.in): $(MKDIR.bld) $(sqlite3-api.jses) $(MAKEFILE)
+	@echo "Making $@..."
+	@for i in $(sqlite3-api.jses); do \
+		echo "/* BEGIN FILE: $$i */"; \
+		cat $$i; \
+		echo "/* END FILE: $$i */"; \
+	done > $@
+
+########################################################################
+# emcc flags for .c/.o/.wasm/.js.
+emcc.flags :=
+ifeq (1,$(emcc.verbose))
+emcc.flags += -v
+# -v is _very_ loud but also informative about what it's doing
+endif
+
+########################################################################
+# emcc flags for .c/.o.
+emcc.cflags :=
+emcc.cflags += -std=c99 -fPIC
+# -------------^^^^^^^^ we need c99 for $(sqlite3-wasm.c), primarily
+# for variadic macros and snprintf() to implement
+# sqlite3_wasm_enum_json().
+emcc.cflags += -I. -I$(dir.top)
+########################################################################
+# emcc flags specific to building .js/.wasm files...
+emcc.jsflags := -fPIC
+emcc.jsflags += --minify 0
+emcc.jsflags += --no-entry
+emcc.jsflags += -sWASM_BIGINT=$(emcc.WASM_BIGINT)
+emcc.jsflags += -sMODULARIZE
+emcc.jsflags += -sDYNAMIC_EXECUTION=0
+emcc.jsflags += -sNO_POLYFILL
+emcc.jsflags += -sEXPORTED_FUNCTIONS=@$(EXPORTED_FUNCTIONS.api)
+emcc.exportedRuntimeMethods := \
+    -sEXPORTED_RUNTIME_METHODS=wasmMemory
+    # wasmMemory ==> required by our code for use with -sIMPORTED_MEMORY
+emcc.jsflags += $(emcc.exportedRuntimeMethods)
+emcc.jsflags += -sUSE_CLOSURE_COMPILER=0
+emcc.jsflags += -sIMPORTED_MEMORY
+emcc.jsflags += -sSTRICT_JS=0
+# STRICT_JS disabled due to:
+#   https://github.com/emscripten-core/emscripten/issues/18610
+# TL;DR: does not work with MODULARIZE or EXPORT_ES6 as of version
+# 3.1.31.  The fix for that in newer emcc's is to throw a built-time
+# error if STRICT_JS is used together with those options.
+
+# emcc.jsflags += -sSTRICT=1
+# -sSTRICT=1 Causes failures about unknown symbols which the build
+# tools should be installing, e.g. __syscall_geteuid32
+
+# -sENVIRONMENT values for the various build modes:
+emcc.environment.vanilla := web,worker
+emcc.environment.bundler-friendly := $(emcc.environment.vanilla)
+emcc.environment.esm := $(emcc.environment.vanilla)
+emcc.environment.node := node
+# Note that adding ",node" to the list for the other builds causes
+# Emscripten to generate code which confuses node: it cannot reliably
+# determine whether the build is for a browser or for node.
+
+########################################################################
+# -sINITIAL_MEMORY: How much memory we need to start with is governed
+# at least in part by whether -sALLOW_MEMORY_GROWTH is enabled. If so,
+# we can start with less. If not, we need as much as we'll ever
+# possibly use (which, of course, we can't know for sure).  Note,
+# however, that speedtest1 shows that performance for even moderate
+# workloads MAY suffer considerably if we start small and have to grow
+# at runtime. e.g. OPFS-backed (speedtest1 --size 75) take MAY take X
+# time with 16mb+ memory and 3X time when starting with 8MB. However,
+# such test results are inconsistent due to browser internals which
+# are opaque to us.
+#
+# 2024-03-04: emsdk 3.1.55 replaces INITIAL_MEMORY with INITIAL_HEAP,
+# but also says (in its changelog): "Note that it is currently not
+# supported in all configurations (#21071)."
+# https://github.com/emscripten-core/emscripten/blob/main/ChangeLog.md
+emcc.jsflags += -sALLOW_MEMORY_GROWTH
+emcc.INITIAL_MEMORY.128 := 134217728
+emcc.INITIAL_MEMORY.96  := 100663296
+emcc.INITIAL_MEMORY.64  := 67108864
+emcc.INITIAL_MEMORY.32  := 33554432
+emcc.INITIAL_MEMORY.16  := 16777216
+emcc.INITIAL_MEMORY.8   := 8388608
+emcc.INITIAL_MEMORY ?= 16
+ifeq (,$(emcc.INITIAL_MEMORY.$(emcc.INITIAL_MEMORY)))
+$(error emcc.INITIAL_MEMORY must be one of: 8, 16, 32, 64, 96, 128 (megabytes))
+endif
+emcc.jsflags += -sINITIAL_MEMORY=$(emcc.INITIAL_MEMORY.$(emcc.INITIAL_MEMORY))
+# /INITIAL_MEMORY
+########################################################################
+
+emcc.jsflags += $(emcc.environment)
+emcc.jsflags += -sSTACK_SIZE=512KB
+# ^^^ ACHTUNG: emsdk 3.1.27 reduced the default stack size from 5MB to
+# a mere 64KB, which leads to silent memory corruption via the kvvfs
+# VFS, which requires twice that for its xRead() and xWrite() methods.
+# 2023-03: those methods have since been adapted to use a malloc()'d
+# buffer.
+########################################################################
+# $(sqlite3.js.init-func) is the name Emscripten assigns our exported
+# module init/load function. This symbol name is hard-coded in
+# $(extern-post-js.js) as well as in numerous docs.
+#
+# "sqlite3InitModule" is the symbol we document for client use, so
+# that's the symbol name which must be exported, whether it comes from
+# Emscripten or our own code in extern-post-js.js.
+#
+# That said... we can change $(sqlite3.js.init-func) as long as the
+# name "sqlite3InitModule" is the one which gets exposed via the
+# resulting JS files. That can be accomplished via
+# extern-post-js.js. However...  using a temporary symbol name here
+# and then adding sqlite3InitModule() ourselves results in 2 global
+# symbols: we cannot "delete" the Emscripten-defined
+# $(sqlite3.js.init-func) from vanilla builds (as opposed to ESM
+# builds) because it's declared with "var".
+sqlite3.js.init-func := sqlite3InitModule
+emcc.jsflags += -sEXPORT_NAME=$(sqlite3.js.init-func)
+emcc.jsflags += -sGLOBAL_BASE=4096 # HYPOTHETICALLY keep func table indexes from overlapping w/ heap addr.
+#emcc.jsflags += -sSTRICT # fails due to missing __syscall_...()
+#emcc.jsflags += -sALLOW_UNIMPLEMENTED_SYSCALLS
+#emcc.jsflags += -sFILESYSTEM=0 # only for experimentation. fiddle needs the FS API
+#emcc.jsflags += -sABORTING_MALLOC # only for experimentation
+emcc.jsflags += -sALLOW_TABLE_GROWTH
+# ^^^^ -sALLOW_TABLE_GROWTH is required for installing new SQL UDFs
+emcc.jsflags += -Wno-limited-postlink-optimizations
+# ^^^^ emcc likes to warn when we have "limited optimizations" via the
+# -g3 flag.
+# emcc.jsflags += -sSTANDALONE_WASM # causes OOM errors, not sure why.
+
+# Re. undefined symbol handling, see: https://lld.llvm.org/WebAssembly.html
+emcc.jsflags += -sERROR_ON_UNDEFINED_SYMBOLS=1
+emcc.jsflags += -sLLD_REPORT_UNDEFINED
+#emcc.jsflags += --allow-undefined
+#emcc.jsflags += --import-undefined
+#emcc.jsflags += --unresolved-symbols=import-dynamic --experimental-pic
+#emcc.jsflags += --experimental-pic --unresolved-symbols=ingore-all --import-undefined
+#emcc.jsflags += --unresolved-symbols=ignore-all
+
+########################################################################
+# -sMEMORY64=1 fails to load, erroring with:
+#  invalid memory limits flags 0x5
+#    (enable via --experimental-wasm-memory64)
+#
+# ^^^^ MEMORY64=2 builds and loads but dies when we do things like:
+#
+#  new Uint8Array(wasm.heap8u().buffer, ptr, n)
+#
+# because ptr is now a BigInt, so is invalid for passing to arguments
+# which have strict must-be-a-Number requirements. That aspect will
+# make any eventual port to 64-bit address space extremely painful, as
+# such constructs are found all over the place in the source code.
+########################################################################
+
+########################################################################
+# -sSINGLE_FILE:
+# https://github.com/emscripten-core/emscripten/blob/main/src/settings.js
+#
+# -sSINGLE_FILE=1 would be _really_ nice but we have to build with -g3
+# for -O2 and higher to work (else minification breaks the code) and
+# cannot wasm-strip the binary before it gets encoded into the JS
+# file. The result is that the generated JS file is, because of the
+# -g3 debugging info, _huge_.
+########################################################################
+
+########################################################################
+# $(sqlite3-api-build-version.js) injects the build version info into
+# the bundle in JSON form.
+$(sqlite3-api-build-version.js): $(MKDIR.bld) $(bin.version-info) $(MAKEFILE)
+	@echo "Making $@..."
+	@{ \
+    echo 'globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){'; \
+    echo -n '  sqlite3.version = '; \
+    $(bin.version-info) --json; \
+    echo ';'; \
+    echo '});'; \
+  } > $@
+
+########################################################################
+# $(sqlite3-license-version.js) contains the license header and
+# in-comment build version info.
+#
+# Maintenance reminder: there are awk binaries out there which do not
+# support -e SCRIPT.
+$(sqlite3-license-version.js): $(MKDIR.bld) $(sqlite3.h) $(sqlite3-license-version-header.js) \
+  $(MAKEFILE)
+	@echo "Making $@..."; { \
+    cat $(sqlite3-license-version-header.js); \
+    echo '/*'; \
+    echo '** This code was built from sqlite3 version...'; \
+    echo "**"; \
+    awk '/define SQLITE_VERSION/{$$1=""; print "**" $$0}' $(sqlite3.h); \
+    awk '/define SQLITE_SOURCE_ID/{$$1=""; print "**" $$0}' $(sqlite3.h); \
+    echo "**"; \
+    echo "** Using the Emscripten SDK version $(emcc.version)."; \
+    echo '*/'; \
+   } > $@
+
+########################################################################
+# --post-js and --pre-js are emcc flags we use to append/prepend JS to
+# the generated emscripten module file. These rules set up the core
+# pre/post files for use by the various builds. --pre-js is used to
+# inject code which needs to run as part of the pre-WASM-load phase.
+# --post-js injects code which runs after the WASM module is loaded
+# and includes the entirety of the library plus some
+# Emscripten-specific post-bootstrapping code.
+pre-js.js.in := $(dir.api)/pre-js.c-pp.js
+post-js.js.in := $(dir.tmp)/post-js.c-pp.js
+post-jses.js := \
+  $(dir.api)/post-js-header.js \
+  $(sqlite3-api.js.in) \
+  $(dir.api)/post-js-footer.js
+$(post-js.js.in): $(MKDIR.bld) $(post-jses.js) $(MAKEFILE)
+	@echo "Making $@..."
+	@for i in $(post-jses.js); do \
+		echo "/* BEGIN FILE: $$i */"; \
+		cat $$i; \
+		echo "/* END FILE: $$i */"; \
+	done > $@
+
+
+# Undocumented Emscripten feature: if the target file extension is
+# "mjs", it defaults to ES6 module builds:
+# https://github.com/emscripten-core/emscripten/issues/14383
+sqlite3.wasm := $(dir.dout)/sqlite3.wasm
+sqlite3-wasm.c := $(dir.api)/sqlite3-wasm.c
+sqlite3-wasm.cfiles := $(sqlite3-wasm.c) $(sqlite3_wasm_extra_init.c)
+sqlite3-wasmfs.cfiles := $(sqlite3-wasm.cfiles)
+# sqlite3-wasm.o vs sqlite3-wasm.c: building against the latter
+# (predictably) results in a slightly faster binary. We're close
+# enough to the target speed requirements that the 500ms makes a
+# difference, so we build all binaries against sqlite3-wasm.c instead
+# of building a shared copy of sqlite3-wasm.o to link against.
+########################################################################
+
+########################################################################
+# SQLITE3.xJS.ESM-EXPORT-DEFAULT is used by mkwasmbuilds.c and the
+# wasmfs build. $1 is 1 if the build mode needs this workaround
+# (modes: esm, bundler-friendly, node) and 0 if not (vanilla). $2 must
+# be 0 for all builds except sqlite3-wasmfs.mjs, in which case it must
+# be 1.
+#
+# Reminder for ESM builds: even if we use -sEXPORT_ES6=0, emcc _still_
+# adds:
+#
+#   export default $(sqlite3.js.init-func);
+#
+# when building *.mjs, which is bad because we need to export an
+# overwritten version of that function and cannot "export default"
+# twice. Because of this, we have to sed *.mjs to remove the _first_
+# instance (only) of /^export default/.
+#
+# Upstream RFE:
+# https://github.com/emscripten-core/emscripten/issues/18237
+#
+# Maintenance reminder: Mac sed works differently than GNU sed, so we
+# use awk instead of sed for this.
+define SQLITE3.xJS.ESM-EXPORT-DEFAULT
+if [ x1 = x$(1) ]; then \
+		echo "Fragile workaround for emscripten/issues/18237. See SQLITE3.xJS.ESM-EXPORT-DEFAULT."; \
+		{\
+			awk '/^export default/ && !f{f=1; next} 1' $@ > $@.tmp && mv $@.tmp $@; \
+		} || exit $$?; \
+		if [ x1 = x$(2) ]; then \
+			if ! grep -q '^export default' $@; then \
+				echo "Cannot find export default." 1>&2; \
+				exit 1; \
+			fi; \
+		fi; \
+fi
+endef
+
+sqlite3-api.js := $(dir.dout)/sqlite3-api.js
+sqlite3.js := $(dir.dout)/sqlite3.js
+sqlite3-api.mjs := $(dir.dout)/sqlite3-api.mjs
+sqlite3.mjs := $(dir.dout)/sqlite3.mjs
+sqlite3-api-bundler-friendly.mjs := $(dir.dout)/sqlite3-api-bundler-friendly.mjs
+sqlite3-bundler-friendly.mjs := $(dir.dout)/sqlite3-bundler-friendly.mjs
+sqlite3-api-node.mjs := $(dir.dout)/sqlite3-api-node.mjs
+sqlite3-node.mjs := $(dir.dout)/sqlite3-node.mjs
+sqlite3-api-wasmfs.mjs := $(dir.tmp)/sqlite3-api-wasmfs.mjs
+sqlite3-wasmfs.mjs    := $(dir.wasmfs)/sqlite3-wasmfs.mjs
+EXPORTED_FUNCTIONS.fiddle := $(dir.tmp)/EXPORTED_FUNCTIONS.fiddle
+ifneq (1,$(MAKING_CLEAN))
+.wasmbuilds.make: $(bin.mkwb)
+	@rm -f $@
+	$(bin.mkwb) > $@
+	@chmod -w $@
+-include .wasmbuilds.make
+endif
+DISTCLEAN_FILES += .wasmbuilds.make
+
+# The various -D... values used by *.c-pp.js include:
+#
+# -Dtarget=es6-module: for all ESM module builds
+#
+# -Dtarget=node: for node.js builds
+#
+# -Dtarget=es6-module -Dtarget=es6-bundler-friendly: intended for
+#    "bundler-friendly" ESM module build. These have some restrictions
+#    on how URL() objects are constructed in some contexts: URLs which
+#    refer to files which are part of this project must be referenced
+#    as string literals so that bundlers' static-analysis tools can
+#    find those files and include them in their bundles.
+#
+# -Dtarget=es6-module -Dtarget=es6-bundler-friendly -Dtarget=node: is
+#    intended for use by node.js for node.js, as opposed to by
+#    node.js on behalf of a browser. Mixing -sENVIRONMENT=web and
+#    -sENVIRONMENT=node leads to ambiguity and confusion on node's
+#    part, as it's unable to reliably determine whether the target is
+#    a browser or node.
+#
+########################################################################
+########################################################################
+# We have to ensure that we do not build $(sqlite3*.*js) in parallel
+# because they all result in the creation of $(sqlite3.wasm). We have
+# no way to build just a .[m]js file without also building the .wasm
+# file because the generated .[m]js file has to include info about the
+# imports needed by the wasm file, so they have to be built
+# together. i.e.  we're building $(sqlite3.wasm) multiple times, but
+# that's unavoidable (and harmless, just a waste of build time).
+$(sqlite3.wasm): $(sqlite3.js)
+$(sqlite3.mjs): $(sqlite3.js)
+$(sqlite3-bundler-friendly.mjs): $(sqlite3.mjs)
+$(sqlite3-node.mjs): $(sqlite3.mjs)
+#CLEAN_FILES += $(sqlite3.wasm)
+
+########################################################################
+# We need separate copies of certain supplementary JS files for the
+# bundler-friendly build. Concretely, any supplemental JS files which
+# themselves use importScripts() or Workers or URL() constructors
+# which refer to other in-tree (m)JS files quire a bundler-friendly
+# copy.
+sqlite3-worker1.js.in := $(dir.api)/sqlite3-worker1.c-pp.js
+sqlite3-worker1-promiser.js.in := $(dir.api)/sqlite3-worker1-promiser.c-pp.js
+sqlite3-worker1.js := $(dir.dout)/sqlite3-worker1.js
+sqlite3-worker1-promiser.js := $(dir.dout)/sqlite3-worker1-promiser.js
+sqlite3-worker1-promiser.mjs := $(dir.dout)/sqlite3-worker1-promiser.mjs
+sqlite3-worker1-bundler-friendly.mjs := $(dir.dout)/sqlite3-worker1-bundler-friendly.mjs
+sqlite3-worker1-promiser-bundler-friendly.js := $(dir.dout)/sqlite3-worker1-promiser-bundler-friendly.js
+$(eval $(call C-PP.FILTER,$(sqlite3-worker1.js.in),$(sqlite3-worker1.js)))
+$(eval $(call C-PP.FILTER,$(sqlite3-worker1.js.in),$(sqlite3-worker1-bundler-friendly.mjs),\
+    $(c-pp.D.sqlite3-bundler-friendly)))
+$(eval $(call C-PP.FILTER,$(sqlite3-worker1-promiser.js.in),$(sqlite3-worker1-promiser.js)))
+$(eval $(call C-PP.FILTER,$(sqlite3-worker1-promiser.js.in),\
+    $(sqlite3-worker1-promiser-bundler-friendly.js),\
+    $(c-pp.D.sqlite3-bundler-friendly)))
+$(eval $(call C-PP.FILTER,$(sqlite3-worker1-promiser.js.in),$(sqlite3-worker1-promiser.mjs),\
+    -Dtarget=es6-module -Dtarget=es6-bundler-friendly))
+$(sqlite3-bundler-friendly.mjs): $(sqlite3-worker1-bundler-friendly.mjs) \
+    $(sqlite3-worker1-promiser-bundler-friendly.js)
+$(eval $(call C-PP.FILTER,demo-worker1-promiser.c-pp.js,demo-worker1-promiser.js))
+$(eval $(call C-PP.FILTER,demo-worker1-promiser.c-pp.js,demo-worker1-promiser.mjs,\
+    -Dtarget=es6-module))
+$(eval $(call C-PP.FILTER,demo-worker1-promiser.c-pp.html,demo-worker1-promiser.html))
+$(eval $(call C-PP.FILTER,demo-worker1-promiser.c-pp.html,demo-worker1-promiser-esm.html,\
+    -Dtarget=es6-module))
+all: $(sqlite3-worker1.js) \
+    $(sqlite3-worker1-promiser.js) $(sqlite3-worker1-promiser.mjs)
+
+demo-worker1-promiser.html: $(sqlite3-worker1-promiser.js) demo-worker1-promiser.js
+demo-worker1-promiser-esm.html: $(sqlite3-worker1-promiser.mjs) demo-worker1-promiser.mjs
+all: demo-worker1-promiser.html demo-worker1-promiser-esm.html
+
+sqlite3-api.ext.jses += \
+  $(sqlite3-worker1-promiser.mjs) \
+  $(sqlite3-worker1-bundler-friendly.mjs) \
+  $(sqlite3-worker1.js)
+all quick: $(sqlite3-api.ext.jses)
+q: quick
+
+########################################################################
+# batch-runner.js is part of one of the test apps which reads in SQL
+# dumps generated by $(speedtest1) and executes them.
+dir.sql := sql
+speedtest1 := ../../speedtest1
+speedtest1.c := ../../test/speedtest1.c
+speedtest1.sql := $(dir.sql)/speedtest1.sql
+speedtest1.cliflags := --size 10 --big-transactions
+$(speedtest1):
+	$(MAKE) -C ../.. speedtest1
+$(speedtest1.sql): $(speedtest1) $(MAKEFILE)
+	$(speedtest1) $(speedtest1.cliflags) --script $@
+batch-runner.list: $(MAKEFILE) $(speedtest1.sql) $(dir.sql)/000-mandelbrot.sql
+	bash split-speedtest1-script.sh $(dir.sql)/speedtest1.sql
+	ls -1 $(dir.sql)/*.sql | grep -v speedtest1.sql | sort > $@
+clean-batch:
+	rm -f batch-runner.list $(dir.sql)/speedtest1*.sql
+# ^^^ we don't do this along with 'clean' because we clean/rebuild on
+# a regular basis with different -Ox flags and rebuilding the batch
+# pieces each time is an unnecessary time sink.
+batch: batch-runner.list
+#all: batch
+# end batch-runner.js
+########################################################################
+# Wasmified speedtest1 is our primary benchmarking tool.
+#
+# emcc.speedtest1.common = emcc flags used by multiple builds of speedtest1
+# emcc.speedtest1 = emcc flags used by main build of speedtest1
+emcc.speedtest1.common := $(emcc_opt_full)
+emcc.speedtest1 := -I. -I$(dir $(sqlite3.canonical.c))
+emcc.speedtest1 += -sENVIRONMENT=web
+emcc.speedtest1 += -sALLOW_MEMORY_GROWTH
+emcc.speedtest1 += -sINITIAL_MEMORY=$(emcc.INITIAL_MEMORY.$(emcc.INITIAL_MEMORY))
+emcc.speedtest1.common += -sINVOKE_RUN=0
+emcc.speedtest1.common += --no-entry
+emcc.speedtest1.common += -sABORTING_MALLOC
+emcc.speedtest1.common += -sSTRICT_JS=0
+emcc.speedtest1.common += -sMODULARIZE
+emcc.speedtest1.common += -Wno-limited-postlink-optimizations
+emcc.speedtest1.common += -Wno-unused-main
+# ^^^^ -Wno-unused-main is for emcc 3.1.52+. speedtest1 has a wasm_main() which is
+# exported and called by the JS code.
+EXPORTED_FUNCTIONS.speedtest1 := $(abspath $(dir.tmp)/EXPORTED_FUNCTIONS.speedtest1)
+emcc.speedtest1.common += -sSTACK_SIZE=512KB
+emcc.speedtest1.common += -sEXPORTED_FUNCTIONS=@$(EXPORTED_FUNCTIONS.speedtest1)
+emcc.speedtest1.common += $(emcc.exportedRuntimeMethods)
+emcc.speedtest1.common += -sALLOW_TABLE_GROWTH
+emcc.speedtest1.common += -sDYNAMIC_EXECUTION=0
+emcc.speedtest1.common += --minify 0
+emcc.speedtest1.common += -sEXPORT_NAME=$(sqlite3.js.init-func)
+emcc.speedtest1.common += -sWASM_BIGINT=$(emcc.WASM_BIGINT)
+speedtest1.exit-runtime0 := -sEXIT_RUNTIME=0
+speedtest1.exit-runtime1 := -sEXIT_RUNTIME=1
+# Re -sEXIT_RUNTIME=1 vs 0: if it's 1 and speedtest1 crashes, we get
+# this error from emscripten:
+#
+# > native function `free` called after runtime exit (use
+# NO_EXIT_RUNTIME to keep it alive after main() exits))
+#
+# If it's 0 and it crashes, we get:
+#
+# > stdio streams had content in them that was not flushed. you should
+# set EXIT_RUNTIME to 1 (see the FAQ), or make sure to emit a newline
+# when you printf etc.
+#
+# and pending output is not flushed because it didn't end with a
+# newline (by design). The lesser of the two evils seems to be
+# -sEXIT_RUNTIME=1 but we need EXIT_RUNTIME=0 for the worker-based app
+# which runs speedtest1 multiple times.
+
+$(EXPORTED_FUNCTIONS.speedtest1): $(MKDIR.bld) $(EXPORTED_FUNCTIONS.api.core)
+	@echo "Making $@ ..."
+	@{ echo _wasm_main; cat $(EXPORTED_FUNCTIONS.api.core); } > $@
+speedtest1.js := $(dir.dout)/speedtest1.js
+speedtest1.wasm := $(dir.dout)/speedtest1.wasm
+emcc.flags.speedtest1-vanilla := $(cflags.common) -DSQLITE_SPEEDTEST1_WASM
+speedtest1.cfiles := $(speedtest1.c) $(sqlite3-wasm.c)
+$(speedtest1.js): $(MAKEFILE) $(speedtest1.cfiles) \
+    $(pre-post-speedtest1-vanilla.deps) \
+    $(EXPORTED_FUNCTIONS.speedtest1)
+	@echo "Building $@ ..."
+	$(emcc.bin) \
+        $(emcc.speedtest1) \
+        $(emcc.speedtest1.common) \
+        $(emcc.flags.speedtest1-vanilla) $(pre-post-speedtest1-vanilla.flags) \
+        $(SQLITE_OPT) \
+        -USQLITE_WASM_BARE_BONES \
+        -USQLITE_C -DSQLITE_C=$(sqlite3.canonical.c) \
+        $(speedtest1.exit-runtime0) \
+        -o $@ $(speedtest1.cfiles) -lm
+	$(maybe-wasm-strip) $(speedtest1.wasm)
+	chmod -x $(speedtest1.wasm)
+	ls -la $@ $(speedtest1.wasm)
+
+speedtest1: $(speedtest1.js)
+all: speedtest1
+#CLEAN_FILES += $(speedtest1.js) $(speedtest1.wasm)
+# end speedtest1.js
+########################################################################
+
+########################################################################
+# tester1 is the main unit and regression test application and needs
+# to be able to run in 4 separate modes to cover the primary
+# client-side use cases:
+#
+# 1) Load sqlite3 in the main UI thread of a conventional script.
+# 2) Load sqlite3 in a conventional Worker thread.
+# 3) Load sqlite3 as an ES6 module (ESM) in the main thread.
+# 4) Load sqlite3 as an ESM worker. (Not all browsers support this.)
+#
+# To that end, we require two separate builds of tester1.js:
+#
+#  tester1.js: cases 1 and 2
+#  tester1.mjs: cases 3 and 4
+#
+# To create those, we filter tester1.c-pp.js with $(bin.c-pp)...
+$(eval $(call C-PP.FILTER,tester1.c-pp.js,tester1.js))
+$(eval $(call C-PP.FILTER,tester1.c-pp.js,tester1.mjs,$(c-pp.D.sqlite3-esm)))
+$(eval $(call C-PP.FILTER,tester1.c-pp.html,tester1.html))
+$(eval $(call C-PP.FILTER,tester1.c-pp.html,tester1-esm.html,$(c-pp.D.sqlite3-esm)))
+tester1: tester1.js tester1.mjs tester1.html tester1-esm.html
+# Note that we do not include $(sqlite3-bundler-friendly.mjs) in this
+# because bundlers are client-specific.
+all quick: tester1
+quick: $(sqlite3.js)
+
+########################################################################
+# Convenience rules to rebuild with various -Ox levels. Much
+# experimentation shows -O2 to be the clear winner in terms of speed.
+# Note that build times with anything higher than -O0 are somewhat
+# painful.
+
+.PHONY: o0 o1 o2 o3 os oz
+emcc-opt-extra :=
+#ifeq (1,$(wasm-bare-bones))
+#emcc-opt-extra += -flto
+# ^^^^ -flto can have a considerably performance boost at -O0 but
+# doubles the build time and seems to have negligible, if any, effect
+# on higher optimization levels.
+#
+# -flto does not shrink the size of bare-bones builds by any measurable
+# amount.
+#endif
+o0: clean
+	$(MAKE) -e "emcc_opt=-O0"
+o1: clean
+	$(MAKE) -e "emcc_opt=-O1 $(emcc-opt-extra)"
+o2: clean
+	$(MAKE) -j2 -e "emcc_opt=-O2 $(emcc-opt-extra)"
+o3: clean
+	$(MAKE) -e "emcc_opt=-O3 $(emcc-opt-extra)"
+os: clean
+	@echo "WARNING: -Os can result in a build with mysteriously missing pieces!"
+	$(MAKE) -e "emcc_opt=-Os $(emcc-opt-extra)"
+oz: clean
+	$(MAKE) -j2 -e "emcc_opt=-Oz $(emcc-opt-extra)"
+
+########################################################################
+# Sub-makes...
+
+# sqlite.org/fiddle application...
+include fiddle.make
+
+# Only add wasmfs if wasmfs.enable=1 or we're running (dist)clean
+ifneq (,$(filter wasmfs,$(MAKECMDGOALS)))
+wasmfs.enable ?= 1
+else
+# Unconditionally enable wasmfs for [dist]clean so that the wasmfs
+# sub-make can clean up.
+wasmfs.enable ?= $(MAKING_CLEAN)
+endif
+ifeq (1,$(wasmfs.enable))
+# wasmfs build disabled 2022-10-19 per /chat discussion.
+# OPFS-over-wasmfs was initially a stopgap measure and a convenient
+# point of comparison for the OPFS sqlite3_vfs's performance, but it
+# currently doubles our deliverables and build maintenance burden for
+# little benefit.
+#
+########################################################################
+# Some platforms do not support the WASMFS build. Raspberry Pi OS is one
+# of them. As such platforms are discovered, add their (uname -m) name
+# to PLATFORMS_WITH_NO_WASMFS to exclude the wasmfs build parts.
+PLATFORMS_WITH_NO_WASMFS := aarch64 # add any others here
+THIS_ARCH := $(shell /usr/bin/uname -m)
+ifneq (,$(filter $(THIS_ARCH),$(PLATFORMS_WITH_NO_WASMFS)))
+$(info This platform does not support the WASMFS build.)
+HAVE_WASMFS := 0
+else
+HAVE_WASMFS := 1
+include wasmfs.make
+endif
+endif
+# /wasmfs
+########################################################################
+
+########################################################################
+# Push files to public wasm-testing.sqlite.org server
+wasm-testing.include = *.js *.mjs *.html \
+  ./tests \
+  $(dir.dout) $(dir.common) $(dir.fiddle) $(dir.fiddle-debug) $(dir.jacc)
+wasm-testing.exclude = sql/speedtest1.sql
+wasm-testing.dir     = /jail/sites/wasm-testing
+wasm-testing.dest   ?= wasm-testing:$(wasm-testing.dir)
+# ---------------------^^^^^^^^^^^^ ssh alias
+.PHONY: push-testing
+push-testing:
+	rsync -z -e ssh --ignore-times --chown=stephan:www-data --group -r \
+    $(patsubst %,--exclude=%,$(wasm-testing.exclude)) \
+    $(wasm-testing.include) $(wasm-testing.dest)
+	@echo "Updating gzipped copies..."; \
+		ssh wasm-testing 'cd $(wasm-testing.dir) && bash .gzip' || \
+    echo "SSH failed: it's likely that stale content will be served via old gzip files."
+
+########################################################################
+# If we find a copy of the sqlite.org/wasm docs checked out, copy
+# certain files over to it, noting that some need automatable edits...
+wasm.docs.home ?= ../../../wasm
+wasm.docs.found = $(if $(wildcard $(wasm.docs.home)/api-index.md),\
+  $(wildcard $(wasm.docs.home)),)
+.PHONY: update-docs
+ifeq (,$(wasm.docs.found))
+update-docs:
+	@echo "Cannot find wasm docs checkout."; \
+	echo "Pass wasm.docs.home=/path/to/wasm/docs/checkout or edit this makefile to suit."; \
+	exit 127
+else
+wasm.docs.jswasm := $(wasm.docs.home)/jswasm
+update-docs: $(bin.stripccomments) $(sqlite3.js) $(sqlite3.wasm)
+	@echo "Copying files to the /wasm docs. Be sure to use an -Oz build for this!"
+	cp $(sqlite3.wasm) $(wasm.docs.jswasm)/.
+	$(bin.stripccomments) -k -k < $(sqlite3.js) \
+		| sed -e '/^[ \t]*$$/d' > $(wasm.docs.jswasm)/sqlite3.js
+	cp demo-123.js demo-123.html demo-123-worker.html $(wasm.docs.home)
+	sed -n -e '/EXTRACT_BEGIN/,/EXTRACT_END/p' \
+		module-symbols.html > $(wasm.docs.home)/module-symbols.html
+endif
+# end /wasm docs
+########################################################################
+
+########################################################################
+# Create main client downloadable zip file:
+ifneq (,$(filter dist snapshot,$(MAKECMDGOALS)))
+include dist.make
+endif
+
+# Run local web server for the test/demo pages.
+httpd:
+	althttpd -max-age 1 -enable-sab 1 -page index.html
diff --git a/ext/wasm/README-dist.txt b/ext/wasm/README-dist.txt
new file mode 100644
index 0000000000000000000000000000000000000000..6656a2072a1bcc375593d97da6f0ab90dd6cc380
--- /dev/null
+++ b/ext/wasm/README-dist.txt
@@ -0,0 +1,46 @@
+This is the README for the sqlite3 WASM/JS distribution.
+
+Main project page: https://sqlite.org
+
+Documentation: https://sqlite.org/wasm
+
+This archive contains the following deliverables for the WASM/JS
+build:
+
+- jswasm/sqlite3.js is the canonical "vanilla JS" version.
+
+- jswasm/sqlite3.mjs is the same but in ES6 module form
+
+- jswasm/*-bundler-friendly.js and .mjs are variants which are
+  intended to be compatible with "bundler" tools commonly seen in
+  node.js-based projects. Projects using such tools should use those
+  variants, where available, instead of files without the
+  "-bundler-friendly" suffix. Some files do not have separate
+  variants.
+
+- jswasm/sqlite3.wasm is the binary WASM file imported by all of the
+  above-listed JS files.
+
+- The jswasm directory additionally contains a number of supplemental
+  JS files which cannot be bundled directly with the main JS files
+  but are necessary for certain usages.
+
+- The top-level directory contains various demonstration and test
+  applications for sqlite3.js and sqlite3.mjs.
+  sqlite3-bundler-friendly.mjs requires client-side build tools to make
+  use of and is not demonstrated here.
+
+Browsers will not serve WASM files from file:// URLs, so the test and
+demonstration apps require a web server and that server must include
+the following headers in its response when serving the files:
+
+    Cross-Origin-Opener-Policy: same-origin
+    Cross-Origin-Embedder-Policy: require-corp
+
+The core library will function without those headers but certain
+features, most notably OPFS storage, will not be available.
+
+One simple way to get the demo apps up and running on Unix-style
+systems is to install althttpd (https://sqlite.org/althttpd) and run:
+
+    althttpd --enable-sab --page index.html
diff --git a/ext/wasm/README.md b/ext/wasm/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..0c328310d9514f0ec9cd15b65f233d39e737fc6a
--- /dev/null
+++ b/ext/wasm/README.md
@@ -0,0 +1,106 @@
+This directory houses the [Web Assembly (WASM)](https://en.wikipedia.org/wiki/WebAssembly)
+parts of the sqlite3 build.
+
+It requires [emscripten][] and that the build environment be set up for
+emscripten. A mini-HOWTO for setting that up follows...
+
+First, install the Emscripten SDK, as documented
+[here](https://emscripten.org/docs/getting_started/downloads.html) and summarized
+below for Linux environments:
+
+```
+# Clone the emscripten repository:
+$ sudo apt install git
+$ git clone https://github.com/emscripten-core/emsdk.git
+$ cd emsdk
+
+# Download and install the latest SDK tools:
+$ ./emsdk install latest
+
+# Make the "latest" SDK "active" for the current user:
+$ ./emsdk activate latest
+```
+
+Those parts only need to be run once, but the SDK can be updated using:
+
+```
+$ git pull
+$ ./emsdk install latest
+$ ./emsdk activate latest
+```
+
+The following needs to be run for each shell instance which needs the
+`emcc` compiler:
+
+```
+# Activate PATH and other environment variables in the current terminal:
+$ source ./emsdk_env.sh
+
+$ which emcc
+/path/to/emsdk/upstream/emscripten/emcc
+```
+
+Optionally, add that to your login shell's resource file (`~/.bashrc`
+or equivalent).
+
+That `env` script needs to be sourced for building this application
+from the top of the sqlite3 build tree:
+
+```
+$ make fiddle
+```
+
+Or:
+
+```
+$ cd ext/wasm
+$ make
+```
+
+That will generate the a number of files required for a handful of
+test and demo applications which can be accessed via
+`index.html`. WASM content cannot, due to XMLHttpRequest security
+limitations, be loaded if the containing HTML file is opened directly
+in the browser (i.e. if it is opened using a `file://` URL), so it
+needs to be served via an HTTP server.  For example, using
+[althttpd][]:
+
+```
+$ cd ext/wasm
+$ althttpd --enable-sab --max-age 1 --page index.html
+```
+
+That will open the system's browser and run the index page, from which
+all of the test and demo applications can be accessed.
+
+Note that when serving this app via [althttpd][], it must be a version
+from 2022-09-26 or newer so that it recognizes the `--enable-sab`
+flag, which causes althttpd to emit two HTTP response headers which
+are required to enable JavaScript's `SharedArrayBuffer` and `Atomics`
+APIs. Those APIs are required in order to enable the OPFS-related
+features in the apps which use them.
+
+# Testing on a remote machine that is accessed via SSH
+
+*NB: The following are developer notes, last validated on 2023-07-19*
+
+  *  Remote: Install git, emsdk, and althttpd
+     *  Use a [version of althttpd][althttpd] from
+        September 26, 2022 or newer.
+  *  Remote: Install the SQLite source tree.  CD to ext/wasm
+  *  Remote: "`make`" to build WASM
+  *  Remote: `althttpd --enable-sab --port 8080 --popup`
+  *  Local:  `ssh -L 8180:localhost:8080 remote`
+  *  Local:  Point your web-browser at http://localhost:8180/index.html
+
+In order to enable [SharedArrayBuffer][], the web-browser requires
+that the two extra Cross-Origin lines be present in HTTP reply headers
+and that the request must come from "localhost" (_or_ over an SSL
+connection).  Since the web-server is on a different machine from the
+web-broser, the localhost requirement means that the connection must
+be tunneled using SSH.
+
+
+[emscripten]: https://emscripten.org
+[althttpd]: https://sqlite.org/althttpd
+[SharedArrayBuffer]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/SharedArrayBuffer
diff --git a/ext/wasm/SQLTester/GNUmakefile b/ext/wasm/SQLTester/GNUmakefile
new file mode 100644
index 0000000000000000000000000000000000000000..8fa1247138cea945098c724d0c82d52fa43a0846
--- /dev/null
+++ b/ext/wasm/SQLTester/GNUmakefile
@@ -0,0 +1,55 @@
+#!/this/is/make
+#
+# This makefile compiles SQLTester test files into something
+# we can readily import into JavaScript.
+all:
+
+SHELL := $(shell which bash 2>/dev/null)
+MAKEFILE := $(lastword $(MAKEFILE_LIST))
+CLEAN_FILES :=
+DISTCLEAN_FILES := ./--dummy-- *~
+
+test-list.mjs := test-list.mjs
+test-list.mjs.gz := $(test-list.mjs).gz
+CLEAN_FILES += $(test-list.mjs)
+
+tests.dir := $(firstword $(wildcard tests ../../jni/src/tests))
+$(info test script dir=$(tests.dir))
+
+tests.all := $(wildcard $(tests.dir)/*.test)
+
+bin.touint8array := ./touint8array
+$(bin.touint8array): $(bin.touint8array).c $(MAKEFILE)
+	$(CC) -o $@ $<
+CLEAN_FILES += $(bin.touint8array)
+
+ifneq (,$(tests.all))
+$(test-list.mjs): $(bin.touint8array) $(tests.all) $(MAKEFILE)
+	@{\
+		echo 'export default ['; \
+		sep=''; \
+		for f in $(sort $(tests.all)); do \
+			echo -en $$sep'{"name": "'$${f##*/}'", "content":'; \
+			$(bin.touint8array) < $$f; \
+			echo -n '}'; \
+			sep=',\n'; \
+		done; \
+	echo '];'; \
+	} > $@
+	@echo "Created $@"
+$(test-list.mjs.gz): $(test-list.mjs)
+	gzip -c $< > $@
+CLEAN_FILES += $(test-list.mjs.gz)
+all: $(test-list.mjs.gz)
+else
+	@echo "Cannot build $(test-list.mjs) for lack of input test files."; \
+		echo "Symlink ./tests to a directory containing SQLTester-format "; \
+		echo "test scripts named *.test, then try again"; \
+		exit 1
+endif
+
+.PHONY: clean distclean
+clean:
+	-rm -f $(CLEAN_FILES)
+distclean: clean
+	-rm -f $(DISTCLEAN_FILES)
diff --git a/ext/wasm/SQLTester/SQLTester.mjs b/ext/wasm/SQLTester/SQLTester.mjs
new file mode 100644
index 0000000000000000000000000000000000000000..e76019694ea35fc9ed20f68692f8c85b7f33a2d4
--- /dev/null
+++ b/ext/wasm/SQLTester/SQLTester.mjs
@@ -0,0 +1,1347 @@
+/*
+** 2023-08-29
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file contains the main application entry pointer for the JS
+** implementation of the SQLTester framework.
+**
+** This version is not well-documented because it's a direct port of
+** the Java implementation, which is documented: in the main SQLite3
+** source tree, see ext/jni/src/org/sqlite/jni/capi/SQLTester.java.
+*/
+
+import sqlite3ApiInit from '/jswasm/sqlite3.mjs';
+
+const sqlite3 = await sqlite3ApiInit();
+
+const log = (...args)=>{
+  console.log('SQLTester:',...args);
+};
+
+/**
+   Try to install vfsName as the new default VFS. Once this succeeds
+   (returns true) then it becomes a no-op on future calls. Throws if
+   VFS registration as the default VFS fails but has no side effects
+   if vfsName is not currently registered.
+*/
+const tryInstallVfs = function f(vfsName){
+  if(f.vfsName) return false;
+  const pVfs = sqlite3.capi.sqlite3_vfs_find(vfsName);
+  if(pVfs){
+    log("Installing",'"'+vfsName+'"',"as default VFS.");
+    const rc = sqlite3.capi.sqlite3_vfs_register(pVfs, 1);
+    if(rc){
+      sqlite3.SQLite3Error.toss(rc,"While trying to register",vfsName,"vfs.");
+    }
+    f.vfsName = vfsName;
+  }
+  return !!pVfs;
+};
+tryInstallVfs.vfsName = undefined;
+
+if( 0 && globalThis.WorkerGlobalScope ){
+  // Try OPFS storage, if available...
+  if( 1 && sqlite3.oo1.OpfsDb ){
+    /* Really slow with these tests */
+    tryInstallVfs("opfs");
+  }else if( sqlite3.installOpfsSAHPoolVfs ){
+    await sqlite3.installOpfsSAHPoolVfs({
+      clearOnInit: true,
+      initialCapacity: 15,
+      name: 'opfs-SQLTester'
+    }).then(pool=>{
+      tryInstallVfs(pool.vfsName);
+    }).catch(e=>{
+      log("OpfsSAHPool could not load:",e);
+    });
+  }
+}
+
+const wPost = (function(){
+  return (('undefined'===typeof WorkerGlobalScope)
+          ? ()=>{}
+          : (type, payload)=>{
+            postMessage({type, payload});
+          });
+})();
+//log("WorkerGlobalScope",globalThis.WorkerGlobalScope);
+
+// Return a new enum entry value
+const newE = ()=>Object.create(null);
+
+const newObj = (props)=>Object.assign(newE(), props);
+
+/**
+   Modes for how to escape (or not) column values and names from
+   SQLTester.execSql() to the result buffer output.
+*/
+const ResultBufferMode = Object.assign(Object.create(null),{
+  //! Do not append to result buffer
+  NONE: newE(),
+  //! Append output escaped.
+  ESCAPED: newE(),
+  //! Append output as-is
+  ASIS: newE()
+});
+
+/**
+   Modes to specify how to emit multi-row output from
+   SQLTester.execSql() to the result buffer.
+*/
+const ResultRowMode = newObj({
+  //! Keep all result rows on one line, space-separated.
+  ONLINE: newE(),
+  //! Add a newline between each result row.
+  NEWLINE: newE()
+});
+
+class SQLTesterException extends globalThis.Error {
+  constructor(testScript, ...args){
+    if(testScript){
+      super( [testScript.getOutputPrefix()+": ", ...args].join('') );
+    }else{
+      super( args.join('') );
+    }
+    this.name = 'SQLTesterException';
+  }
+  isFatal() { return false; }
+}
+
+SQLTesterException.toss = (...args)=>{
+  throw new SQLTesterException(...args);
+}
+
+class DbException extends SQLTesterException {
+  constructor(testScript, pDb, rc, closeDb=false){
+    super(testScript, "DB error #"+rc+": "+sqlite3.capi.sqlite3_errmsg(pDb));
+    this.name = 'DbException';
+    if( closeDb ) sqlite3.capi.sqlite3_close_v2(pDb);
+  }
+  isFatal() { return true; }
+}
+
+class TestScriptFailed extends SQLTesterException {
+  constructor(testScript, ...args){
+    super(testScript,...args);
+    this.name = 'TestScriptFailed';
+  }
+  isFatal() { return true; }
+}
+
+class UnknownCommand extends SQLTesterException {
+  constructor(testScript, cmdName){
+    super(testScript, cmdName);
+    this.name = 'UnknownCommand';
+  }
+  isFatal() { return true; }
+}
+
+class IncompatibleDirective extends SQLTesterException {
+  constructor(testScript, ...args){
+    super(testScript,...args);
+    this.name = 'IncompatibleDirective';
+  }
+}
+
+//! For throwing where an expression is required.
+const toss = (errType, ...args)=>{
+  throw new errType(...args);
+};
+
+const __utf8Decoder = new TextDecoder();
+const __utf8Encoder = new TextEncoder('utf-8');
+//! Workaround for Util.utf8Decode()
+const __SAB = ('undefined'===typeof globalThis.SharedArrayBuffer)
+      ? function(){} : globalThis.SharedArrayBuffer;
+
+
+/* Frequently-reused regexes. */
+const Rx = newObj({
+  requiredProperties: / REQUIRED_PROPERTIES:[ \t]*(\S.*)\s*$/,
+  scriptModuleName: / SCRIPT_MODULE_NAME:[ \t]*(\S+)\s*$/,
+  mixedModuleName: / ((MIXED_)?MODULE_NAME):[ \t]*(\S+)\s*$/,
+  command: /^--(([a-z-]+)( .*)?)$/,
+  //! "Special" characters - we have to escape output if it contains any.
+  special: /[\x00-\x20\x22\x5c\x7b\x7d]/,
+  squiggly: /[{}]/
+});
+
+
+
+const Util = newObj({
+  toss,
+
+  unlink: function f(fn){
+    if(!f.unlink){
+      f.unlink = sqlite3.wasm.xWrap('sqlite3__wasm_vfs_unlink','int',
+                                    ['*','string']);
+    }
+    return 0==f.unlink(0,fn);
+  },
+
+  argvToString: (list)=>{
+    const m = [...list];
+    m.shift() /* strip command name */;
+    return m.join(" ")
+  },
+
+  utf8Decode: function(arrayBuffer, begin, end){
+    return __utf8Decoder.decode(
+      (arrayBuffer.buffer instanceof __SAB)
+        ? arrayBuffer.slice(begin, end)
+        : arrayBuffer.subarray(begin, end)
+    );
+  },
+
+  utf8Encode: (str)=>__utf8Encoder.encode(str),
+
+  strglob: sqlite3.wasm.xWrap('sqlite3__wasm_SQLTester_strglob','int',
+                              ['string','string'])
+})/*Util*/;
+
+/**
+   Output logger utility.
+*/
+class Outer {
+  #lnBuf = [];
+  #verbosity = 0;
+  #logger = console.log.bind(console);
+
+  constructor(func){
+    if(func) this.setFunc(func);
+  }
+
+  logger(...args){
+    if(args.length){
+      this.#logger = args[0];
+      return this;
+    }
+    return this.#logger;
+  }
+
+  out(...args){
+    if( this.getOutputPrefix && !this.#lnBuf.length ){
+      this.#lnBuf.push(this.getOutputPrefix());
+    }
+    this.#lnBuf.push(...args);
+    return this;
+  }
+
+  #outlnImpl(vLevel, ...args){
+    if( this.getOutputPrefix && !this.#lnBuf.length ){
+      this.#lnBuf.push(this.getOutputPrefix());
+    }
+    this.#lnBuf.push(...args,'\n');
+    const msg = this.#lnBuf.join('');
+    this.#lnBuf.length = 0;
+    this.#logger(msg);
+    return this;
+  }
+
+  outln(...args){
+    return this.#outlnImpl(0,...args);
+  }
+
+  outputPrefix(){
+    if( 0==arguments.length ){
+      return (this.getOutputPrefix
+              ? (this.getOutputPrefix() ?? '') : '');
+    }else{
+      this.getOutputPrefix = arguments[0];
+      return this;
+    }
+  }
+
+  static #verboseLabel = ["🔈",/*"🔉",*/"🔊","📢"];
+  verboseN(lvl, args){
+    if( this.#verbosity>=lvl ){
+      this.#outlnImpl(lvl, Outer.#verboseLabel[lvl-1],': ',...args);
+    }
+  }
+  verbose1(...args){ return this.verboseN(1,args); }
+  verbose2(...args){ return this.verboseN(2,args); }
+  verbose3(...args){ return this.verboseN(3,args); }
+
+  verbosity(){
+    const rc = this.#verbosity;
+    if(arguments.length) this.#verbosity = +arguments[0];
+    return rc;
+  }
+
+}/*Outer*/
+
+class SQLTester {
+
+  //! Console output utility.
+  #outer = new Outer().outputPrefix( ()=>'SQLTester: ' );
+  //! List of input scripts.
+  #aScripts = [];
+  //! Test input buffer.
+  #inputBuffer = [];
+  //! Test result buffer.
+  #resultBuffer = [];
+  //! Output representation of SQL NULL.
+  #nullView;
+  metrics = newObj({
+    //! Total tests run
+    nTotalTest: 0,
+    //! Total test script files run
+    nTestFile: 0,
+    //! Test-case count for to the current TestScript
+    nTest: 0,
+    //! Names of scripts which were aborted.
+    failedScripts: []
+  });
+  #emitColNames = false;
+  //! True to keep going regardless of how a test fails.
+  #keepGoing = false;
+  #db = newObj({
+    //! The list of available db handles.
+    list: new Array(7),
+    //! Index into this.list of the current db.
+    iCurrentDb: 0,
+    //! Name of the default db, re-created for each script.
+    initialDbName: "test.db",
+    //! Buffer for REQUIRED_PROPERTIES pragmas.
+    initSql: ['select 1;'],
+    //! (sqlite3*) to the current db.
+    currentDb: function(){
+      return this.list[this.iCurrentDb];
+    }
+  });
+
+  constructor(){
+    this.reset();
+  }
+
+  outln(...args){ return this.#outer.outln(...args); }
+  out(...args){ return this.#outer.out(...args); }
+  outer(...args){
+    if(args.length){
+      this.#outer = args[0];
+      return this;
+    }
+    return this.#outer;
+  }
+  verbose1(...args){ return this.#outer.verboseN(1,args); }
+  verbose2(...args){ return this.#outer.verboseN(2,args); }
+  verbose3(...args){ return this.#outer.verboseN(3,args); }
+  verbosity(...args){
+    const rc = this.#outer.verbosity(...args);
+    return args.length ? this : rc;
+  }
+  setLogger(func){
+    this.#outer.logger(func);
+    return this;
+  }
+
+  incrementTestCounter(){
+    ++this.metrics.nTotalTest;
+    ++this.metrics.nTest;
+  }
+
+  reset(){
+    this.clearInputBuffer();
+    this.clearResultBuffer();
+    this.#clearBuffer(this.#db.initSql);
+    this.closeAllDbs();
+    this.metrics.nTest = 0;
+    this.#nullView = "nil";
+    this.#emitColNames = false;
+    this.#db.iCurrentDb = 0;
+    //this.#db.initSql.push("SELECT 1;");
+  }
+
+  appendInput(line, addNL){
+    this.#inputBuffer.push(line);
+    if( addNL ) this.#inputBuffer.push('\n');
+  }
+  appendResult(line, addNL){
+    this.#resultBuffer.push(line);
+    if( addNL ) this.#resultBuffer.push('\n');
+  }
+  appendDbInitSql(sql){
+    this.#db.initSql.push(sql);
+    if( this.currentDb() ){
+      this.execSql(null, true, ResultBufferMode.NONE, null, sql);
+    }
+  }
+
+  #runInitSql(pDb){
+    let rc = 0;
+    for(const sql of this.#db.initSql){
+      this.#outer.verbose2("RUNNING DB INIT CODE: ",sql);
+      rc = this.execSql(pDb, false, ResultBufferMode.NONE, null, sql);
+      if( rc ) break;
+    }
+    return rc;
+  }
+
+#clearBuffer(buffer){
+    buffer.length = 0;
+    return buffer;
+  }
+
+  clearInputBuffer(){ return this.#clearBuffer(this.#inputBuffer); }
+  clearResultBuffer(){return this.#clearBuffer(this.#resultBuffer); }
+
+  getInputText(){ return this.#inputBuffer.join(''); }
+  getResultText(){ return this.#resultBuffer.join(''); }
+
+  #takeBuffer(buffer){
+    const s = buffer.join('');
+    buffer.length = 0;
+    return s;
+  }
+
+  takeInputBuffer(){
+    return this.#takeBuffer(this.#inputBuffer);
+  }
+  takeResultBuffer(){
+    return this.#takeBuffer(this.#resultBuffer);
+  }
+
+  nullValue(){
+    return (0==arguments.length)
+      ? this.#nullView
+      : (this.#nullView = ''+arguments[0]);
+  }
+
+  outputColumnNames(){
+    return (0==arguments.length)
+      ? this.#emitColNames
+      : (this.#emitColNames = !!arguments[0]);
+  }
+
+  currentDbId(){
+    return (0==arguments.length)
+      ? this.#db.iCurrentDb
+      : (this.#affirmDbId(arguments[0]).#db.iCurrentDb = arguments[0]);
+  }
+
+  #affirmDbId(id){
+    if(id<0 || id>=this.#db.list.length){
+      toss(SQLTesterException, "Database index ",id," is out of range.");
+    }
+    return this;
+  }
+
+  currentDb(...args){
+    if( 0!=args.length ){
+      this.#affirmDbId(id).#db.iCurrentDb = id;
+    }
+    return this.#db.currentDb();
+  }
+
+  getDbById(id){
+    return this.#affirmDbId(id).#db.list[id];
+  }
+
+  getCurrentDb(){ return this.#db.list[this.#db.iCurrentDb]; }
+
+
+  closeDb(id) {
+    if( 0==arguments.length ){
+      id = this.#db.iCurrentDb;
+    }
+    const pDb = this.#affirmDbId(id).#db.list[id];
+    if( pDb ){
+      sqlite3.capi.sqlite3_close_v2(pDb);
+      this.#db.list[id] = null;
+    }
+  }
+
+  closeAllDbs(){
+    for(let i = 0; i<this.#db.list.length; ++i){
+      if(this.#db.list[i]){
+        sqlite3.capi.sqlite3_close_v2(this.#db.list[i]);
+        this.#db.list[i] = null;
+      }
+    }
+    this.#db.iCurrentDb = 0;
+  }
+
+  openDb(name, createIfNeeded){
+    if( 3===arguments.length ){
+      const slot = arguments[0];
+      this.#affirmDbId(slot).#db.iCurrentDb = slot;
+      name = arguments[1];
+      createIfNeeded = arguments[2];
+    }
+    this.closeDb();
+    const capi = sqlite3.capi, wasm = sqlite3.wasm;
+    let pDb = 0;
+    let flags = capi.SQLITE_OPEN_READWRITE;
+    if( createIfNeeded ) flags |= capi.SQLITE_OPEN_CREATE;
+    try{
+      let rc;
+      wasm.pstack.call(function(){
+        let ppOut = wasm.pstack.allocPtr();
+        rc = sqlite3.capi.sqlite3_open_v2(name, ppOut, flags, null);
+        pDb = wasm.peekPtr(ppOut);
+      });
+      let sql;
+      if( 0==rc && this.#db.initSql.length > 0){
+        rc = this.#runInitSql(pDb);
+      }
+      if( 0!=rc ){
+        sqlite3.SQLite3Error.toss(
+          rc,
+          "sqlite3 result code",rc+":",
+          (pDb ? sqlite3.capi.sqlite3_errmsg(pDb)
+           : sqlite3.capi.sqlite3_errstr(rc))
+        );
+      }
+      return this.#db.list[this.#db.iCurrentDb] = pDb;
+    }catch(e){
+      sqlite3.capi.sqlite3_close_v2(pDb);
+      throw e;
+    }
+  }
+
+  addTestScript(ts){
+    if( 2===arguments.length ){
+      ts = new TestScript(arguments[0], arguments[1]);
+    }else if(ts instanceof Uint8Array){
+      ts = new TestScript('<unnamed>', ts);
+    }else if('string' === typeof arguments[1]){
+      ts = new TestScript('<unnamed>', Util.utf8Encode(arguments[1]));
+    }
+    if( !(ts instanceof TestScript) ){
+      Util.toss(SQLTesterException, "Invalid argument type for addTestScript()");
+    }
+    this.#aScripts.push(ts);
+    return this;
+  }
+
+  runTests(){
+    const tStart = (new Date()).getTime();
+    let isVerbose = this.verbosity();
+    this.metrics.failedScripts.length = 0;
+    this.metrics.nTotalTest = 0;
+    this.metrics.nTestFile = 0;
+    for(const ts of this.#aScripts){
+      this.reset();
+      ++this.metrics.nTestFile;
+      let threw = false;
+      const timeStart = (new Date()).getTime();
+      let msgTail = '';
+      try{
+        ts.run(this);
+      }catch(e){
+        if(e instanceof SQLTesterException){
+          threw = true;
+          this.outln("🔥EXCEPTION: ",e);
+          this.metrics.failedScripts.push({script: ts.filename(), message:e.toString()});
+          if( this.#keepGoing ){
+            this.outln("Continuing anyway because of the keep-going option.");
+          }else if( e.isFatal() ){
+            throw e;
+          }
+        }else{
+          throw e;
+        }
+      }finally{
+        const timeEnd = (new Date()).getTime();
+        this.out("🏁", (threw ? "❌" : "✅"), " ",
+                 this.metrics.nTest, " test(s) in ",
+                 (timeEnd-timeStart),"ms. ");
+        const mod = ts.moduleName();
+        if( mod ){
+          this.out( "[",mod,"] " );
+        }
+        this.outln(ts.filename());
+      }
+    }
+    const tEnd = (new Date()).getTime();
+    Util.unlink(this.#db.initialDbName);
+    this.outln("Took ",(tEnd-tStart),"ms. Test count = ",
+               this.metrics.nTotalTest,", script count = ",
+               this.#aScripts.length,(
+                 this.metrics.failedScripts.length
+                   ? ", failed scripts = "+this.metrics.failedScripts.length
+                   : ""
+               )
+              );
+    return this;
+  }
+
+  #setupInitialDb(){
+    if( !this.#db.list[0] ){
+      Util.unlink(this.#db.initialDbName);
+      this.openDb(0, this.#db.initialDbName, true);
+    }else{
+      this.#outer.outln("WARNING: setupInitialDb() was unexpectedly ",
+                        "triggered while it is opened.");
+    }
+  }
+
+  #escapeSqlValue(v){
+    if( !v ) return "{}";
+    if( !Rx.special.test(v) ){
+      return v  /* no escaping needed */;
+    }
+    if( !Rx.squiggly.test(v) ){
+      return "{"+v+"}";
+    }
+    const sb = ["\""];
+    const n = v.length;
+    for(let i = 0; i < n; ++i){
+      const ch = v.charAt(i);
+      switch(ch){
+        case '\\': sb.push("\\\\"); break;
+        case '"': sb.push("\\\""); break;
+        default:{
+          //verbose("CHAR ",(int)ch," ",ch," octal=",String.format("\\%03o", (int)ch));
+          const ccode = ch.charCodeAt(i);
+          if( ccode < 32 ) sb.push('\\',ccode.toString(8),'o');
+          else sb.push(ch);
+          break;
+        }
+      }
+    }
+    sb.push("\"");
+    return sb.join('');
+  }
+
+  #appendDbErr(pDb, sb, rc){
+    sb.push(sqlite3.capi.sqlite3_js_rc_str(rc), ' ');
+    const msg = this.#escapeSqlValue(sqlite3.capi.sqlite3_errmsg(pDb));
+    if( '{' === msg.charAt(0) ){
+      sb.push(msg);
+    }else{
+      sb.push('{', msg, '}');
+    }
+  }
+
+  #checkDbRc(pDb,rc){
+    sqlite3.oo1.DB.checkRc(pDb, rc);
+  }
+
+  execSql(pDb, throwOnError, appendMode, rowMode, sql){
+    if( !pDb && !this.#db.list[0] ){
+      this.#setupInitialDb();
+    }
+    if( !pDb ) pDb = this.#db.currentDb();
+    const wasm = sqlite3.wasm, capi = sqlite3.capi;
+    sql = (sql instanceof Uint8Array)
+      ? sql
+      : Util.utf8Encode(capi.sqlite3_js_sql_to_string(sql));
+    const self = this;
+    const sb = (ResultBufferMode.NONE===appendMode) ? null : this.#resultBuffer;
+    let rc = 0;
+    wasm.scopedAllocCall(function(){
+      let sqlByteLen = sql.byteLength;
+      const ppStmt = wasm.scopedAlloc(
+        /* output (sqlite3_stmt**) arg and pzTail */
+        (2 * wasm.ptrSizeof) + (sqlByteLen + 1/* SQL + NUL */)
+      );
+      const pzTail = ppStmt + wasm.ptrSizeof /* final arg to sqlite3_prepare_v2() */;
+      let pSql = pzTail + wasm.ptrSizeof;
+      const pSqlEnd = pSql + sqlByteLen;
+      wasm.heap8().set(sql, pSql);
+      wasm.poke8(pSql + sqlByteLen, 0/*NUL terminator*/);
+      let pos = 0, n = 1, spacing = 0;
+      while( pSql && wasm.peek8(pSql) ){
+        wasm.pokePtr([ppStmt, pzTail], 0);
+        rc = capi.sqlite3_prepare_v3(
+          pDb, pSql, sqlByteLen, 0, ppStmt, pzTail
+        );
+        if( 0!==rc ){
+          if(throwOnError){
+            throw new DbException(self, pDb, rc);
+          }else if( sb ){
+            self.#appendDbErr(pDb, sb, rc);
+          }
+          break;
+        }
+        const pStmt = wasm.peekPtr(ppStmt);
+        pSql = wasm.peekPtr(pzTail);
+        sqlByteLen = pSqlEnd - pSql;
+        if(!pStmt) continue /* only whitespace or comments */;
+        if( sb ){
+          const nCol = capi.sqlite3_column_count(pStmt);
+          let colName, val;
+          while( capi.SQLITE_ROW === (rc = capi.sqlite3_step(pStmt)) ) {
+            for( let i=0; i < nCol; ++i ){
+              if( spacing++ > 0 ) sb.push(' ');
+              if( self.#emitColNames ){
+                colName = capi.sqlite3_column_name(pStmt, i);
+                switch(appendMode){
+                  case ResultBufferMode.ASIS: sb.push( colName ); break;
+                  case ResultBufferMode.ESCAPED:
+                    sb.push( self.#escapeSqlValue(colName) );
+                    break;
+                  default:
+                    self.toss("Unhandled ResultBufferMode.");
+                }
+                sb.push(' ');
+              }
+              val = capi.sqlite3_column_text(pStmt, i);
+              if( null===val ){
+                sb.push( self.#nullView );
+                continue;
+              }
+              switch(appendMode){
+                case ResultBufferMode.ASIS: sb.push( val ); break;
+                case ResultBufferMode.ESCAPED:
+                  sb.push( self.#escapeSqlValue(val) );
+                  break;
+              }
+            }/* column loop */
+            if( ResultRowMode.NEWLINE === rowMode ){
+              spacing = 0;
+              sb.push('\n');
+            }
+          }/* row loop */
+        }else{ // no output but possibly other side effects
+          while( capi.SQLITE_ROW === (rc = capi.sqlite3_step(pStmt)) ) {}
+        }
+        capi.sqlite3_finalize(pStmt);
+        if( capi.SQLITE_ROW===rc || capi.SQLITE_DONE===rc) rc = 0;
+        else if( rc!=0 ){
+          if( sb ){
+            self.#appendDbErr(pDb, sb, rc);
+          }
+          break;
+        }
+      }/* SQL script loop */;
+    })/*scopedAllocCall()*/;
+    return rc;
+  }
+
+}/*SQLTester*/
+
+class Command {
+  constructor(){
+  }
+
+  process(sqlTester,testScript,argv){
+    SQLTesterException.toss("process() must be overridden");
+  }
+
+  argcCheck(testScript,argv,min,max){
+    const argc = argv.length-1;
+    if(argc<min || (max>=0 && argc>max)){
+      if( min==max ){
+        testScript.toss(argv[0]," requires exactly ",min," argument(s)");
+      }else if(max>0){
+        testScript.toss(argv[0]," requires ",min,"-",max," arguments.");
+      }else{
+        testScript.toss(argv[0]," requires at least ",min," arguments.");
+      }
+    }
+  }
+}
+
+class Cursor {
+  src;
+  sb = [];
+  pos = 0;
+  //! Current line number. Starts at 0 for internal reasons and will
+  // line up with 1-based reality once parsing starts.
+  lineNo = 0 /* yes, zero */;
+  //! Putback value for this.pos.
+  putbackPos = 0;
+  //! Putback line number
+  putbackLineNo = 0;
+  //! Peeked-to pos, used by peekLine() and consumePeeked().
+  peekedPos = 0;
+  //! Peeked-to line number.
+  peekedLineNo = 0;
+
+  constructor(){
+  }
+
+  //! Restore parsing state to the start of the stream.
+  rewind(){
+    this.sb.length = this.pos = this.lineNo
+      = this.putbackPos = this.putbackLineNo
+      = this.peekedPos = this.peekedLineNo = 0;
+  }
+}
+
+class TestScript {
+  #cursor = new Cursor();
+  #moduleName = null;
+  #filename = null;
+  #testCaseName = null;
+  #outer = new Outer().outputPrefix( ()=>this.getOutputPrefix()+': ' );
+
+  constructor(...args){
+    let content, filename;
+    if( 2 == args.length ){
+      filename = args[0];
+      content = args[1];
+    }else if( 1 == args.length ){
+      if(args[0] instanceof Object){
+        const o = args[0];
+        filename = o.name;
+        content = o.content;
+      }else{
+        content = args[0];
+      }
+    }
+    if(!(content instanceof Uint8Array)){
+      if('string' === typeof content){
+        content = Util.utf8Encode(content);
+      }else if((content instanceof ArrayBuffer)
+               ||(content instanceof Array)){
+        content = new Uint8Array(content);
+      }else{
+        toss(Error, "Invalid content type for TestScript constructor.");
+      }
+    }
+    this.#filename = filename;
+    this.#cursor.src = content;
+  }
+
+  moduleName(){
+    return (0==arguments.length)
+      ? this.#moduleName : (this.#moduleName = arguments[0]);
+  }
+
+  testCaseName(){
+    return (0==arguments.length)
+      ? this.#testCaseName : (this.#testCaseName = arguments[0]);
+  }
+  filename(){
+    return (0==arguments.length)
+      ? this.#filename : (this.#filename = arguments[0]);
+  }
+
+  getOutputPrefix() {
+    let rc =  "["+(this.#moduleName || '<unnamed>')+"]";
+    if( this.#testCaseName ) rc += "["+this.#testCaseName+"]";
+    if( this.#filename ) rc += '['+this.#filename+']';
+    return rc + " line "+ this.#cursor.lineNo;
+  }
+
+  reset(){
+    this.#testCaseName = null;
+    this.#cursor.rewind();
+    return this;
+  }
+
+  toss(...args){
+    throw new TestScriptFailed(this,...args);
+  }
+
+  verbose1(...args){ return this.#outer.verboseN(1,args); }
+  verbose2(...args){ return this.#outer.verboseN(2,args); }
+  verbose3(...args){ return this.#outer.verboseN(3,args); }
+  verbosity(...args){
+    const rc = this.#outer.verbosity(...args);
+    return args.length ? this : rc;
+  }
+
+  #checkRequiredProperties(tester, props){
+    if(true) return false;
+    let nOk = 0;
+    for(const rp of props){
+      this.verbose2("REQUIRED_PROPERTIES: ",rp);
+      switch(rp){
+        case "RECURSIVE_TRIGGERS":
+          tester.appendDbInitSql("pragma recursive_triggers=on;");
+          ++nOk;
+          break;
+        case "TEMPSTORE_FILE":
+          /* This _assumes_ that the lib is built with SQLITE_TEMP_STORE=1 or 2,
+             which we just happen to know is the case */
+          tester.appendDbInitSql("pragma temp_store=1;");
+          ++nOk;
+          break;
+        case "TEMPSTORE_MEM":
+          /* This _assumes_ that the lib is built with SQLITE_TEMP_STORE=1 or 2,
+             which we just happen to know is the case */
+          tester.appendDbInitSql("pragma temp_store=0;");
+          ++nOk;
+          break;
+        case "AUTOVACUUM":
+          tester.appendDbInitSql("pragma auto_vacuum=full;");
+          ++nOk;
+          break;
+        case "INCRVACUUM":
+          tester.appendDbInitSql("pragma auto_vacuum=incremental;");
+          ++nOk;
+        default:
+          break;
+      }
+    }
+    return props.length == nOk;
+  }
+
+  #checkForDirective(tester,line){
+    if(line.startsWith("#")){
+      throw new IncompatibleDirective(this, "C-preprocessor input: "+line);
+    }else if(line.startsWith("---")){
+      throw new IncompatibleDirective(this, "triple-dash: ",line);
+    }
+    let m = Rx.scriptModuleName.exec(line);
+    if( m ){
+      this.#moduleName = m[1];
+      return;
+    }
+    m = Rx.requiredProperties.exec(line);
+    if( m ){
+      const rp = m[1];
+      if( !this.#checkRequiredProperties( tester, rp.split(/\s+/).filter(v=>!!v) ) ){
+        throw new IncompatibleDirective(this, "REQUIRED_PROPERTIES: "+rp);
+      }
+    }
+
+    m = Rx.mixedModuleName.exec(line);
+    if( m ){
+      throw new IncompatibleDirective(this, m[1]+": "+m[3]);
+    }
+    if( line.indexOf("\n|")>=0 ){
+      throw new IncompatibleDirective(this, "newline-pipe combination.");
+    }
+
+  }
+
+  #getCommandArgv(line){
+    const m = Rx.command.exec(line);
+    return m ? m[1].trim().split(/\s+/) : null;
+  }
+
+
+  #isCommandLine(line, checkForImpl){
+    let m = Rx.command.exec(line);
+    if( m && checkForImpl ){
+      m = !!CommandDispatcher.getCommandByName(m[2]);
+    }
+    return !!m;
+  }
+
+  fetchCommandBody(tester){
+    const sb = [];
+    let line;
+    while( (null !== (line = this.peekLine())) ){
+      this.#checkForDirective(tester, line);
+      if( this.#isCommandLine(line, true) ) break;
+      sb.push(line,"\n");
+      this.consumePeeked();
+    }
+    line = sb.join('');
+    return !!line.trim() ? line : null;
+  }
+
+  run(tester){
+    this.reset();
+    this.#outer.verbosity( tester.verbosity() );
+    this.#outer.logger( tester.outer().logger() );
+    let line, directive, argv = [];
+    while( null != (line = this.getLine()) ){
+      this.verbose3("run() input line: ",line);
+      this.#checkForDirective(tester, line);
+      argv = this.#getCommandArgv(line);
+      if( argv ){
+        this.#processCommand(tester, argv);
+        continue;
+      }
+      tester.appendInput(line,true);
+    }
+    return true;
+  }
+
+  #processCommand(tester, argv){
+    this.verbose2("processCommand(): ",argv[0], " ", Util.argvToString(argv));
+    if(this.#outer.verbosity()>1){
+      const input = tester.getInputText();
+      this.verbose3("processCommand() input buffer = ",input);
+    }
+    CommandDispatcher.dispatch(tester, this, argv);
+  }
+
+  getLine(){
+    const cur = this.#cursor;
+    if( cur.pos==cur.src.byteLength ){
+      return null/*EOF*/;
+    }
+    cur.putbackPos = cur.pos;
+    cur.putbackLineNo = cur.lineNo;
+    cur.sb.length = 0;
+    let b = 0, prevB = 0, i = cur.pos;
+    let doBreak = false;
+    let nChar = 0 /* number of bytes in the aChar char */;
+    const end = cur.src.byteLength;
+    for(; i < end && !doBreak; ++i){
+      b = cur.src[i];
+      switch( b ){
+        case 13/*CR*/: continue;
+        case 10/*NL*/:
+          ++cur.lineNo;
+          if(cur.sb.length>0) doBreak = true;
+          // Else it's an empty string
+          break;
+        default:{
+          /* Multi-byte chars need to be gathered up and appended at
+             one time so that we can get them as string objects. */
+          nChar = 1;
+          switch( b & 0xF0 ){
+            case 0xC0: nChar = 2; break;
+            case 0xE0: nChar = 3; break;
+            case 0xF0: nChar = 4; break;
+            default:
+              if( b > 127 ) this.toss("Invalid character (#"+b+").");
+              break;
+          }
+          if( 1==nChar ){
+            cur.sb.push(String.fromCharCode(b));
+          }else{
+            const aChar = [] /* multi-byte char buffer */;
+            for(let x = 0; (x < nChar) && (i+x < end); ++x) aChar[x] = cur.src[i+x];
+            cur.sb.push(
+              Util.utf8Decode( new Uint8Array(aChar) )
+            );
+            i += nChar-1;
+          }
+          break;
+        }
+      }
+    }
+    cur.pos = i;
+    const rv = cur.sb.join('');
+    if( i==cur.src.byteLength && 0==rv.length ){
+      return null /* EOF */;
+    }
+    return rv;
+  }/*getLine()*/
+
+  /**
+     Fetches the next line then resets the cursor to its pre-call
+     state. consumePeeked() can be used to consume this peeked line
+     without having to re-parse it.
+  */
+  peekLine(){
+    const cur = this.#cursor;
+    const oldPos = cur.pos;
+    const oldPB = cur.putbackPos;
+    const oldPBL = cur.putbackLineNo;
+    const oldLine = cur.lineNo;
+    try {
+      return this.getLine();
+    }finally{
+      cur.peekedPos = cur.pos;
+      cur.peekedLineNo = cur.lineNo;
+      cur.pos = oldPos;
+      cur.lineNo = oldLine;
+      cur.putbackPos = oldPB;
+      cur.putbackLineNo = oldPBL;
+    }
+  }
+
+
+  /**
+     Only valid after calling peekLine() and before calling getLine().
+     This places the cursor to the position it would have been at had
+     the peekLine() had been fetched with getLine().
+  */
+  consumePeeked(){
+    const cur = this.#cursor;
+    cur.pos = cur.peekedPos;
+    cur.lineNo = cur.peekedLineNo;
+  }
+
+  /**
+     Restores the cursor to the position it had before the previous
+     call to getLine().
+  */
+  putbackLine(){
+    const cur = this.#cursor;
+    cur.pos = cur.putbackPos;
+    cur.lineNo = cur.putbackLineNo;
+  }
+
+}/*TestScript*/;
+
+//! --close command
+class CloseDbCommand extends Command {
+  process(t, ts, argv){
+    this.argcCheck(ts,argv,0,1);
+    let id;
+    if(argv.length>1){
+      const arg = argv[1];
+      if( "all" === arg ){
+        t.closeAllDbs();
+        return;
+      }
+      else{
+        id = parseInt(arg);
+      }
+    }else{
+      id = t.currentDbId();
+    }
+    t.closeDb(id);
+  }
+}
+
+//! --column-names command
+class ColumnNamesCommand extends Command {
+  process( st, ts, argv ){
+    this.argcCheck(ts,argv,1);
+    st.outputColumnNames( !!parseInt(argv[1]) );
+  }
+}
+
+//! --db command
+class DbCommand extends Command {
+  process(t, ts, argv){
+    this.argcCheck(ts,argv,1);
+    t.currentDbId( parseInt(argv[1]) );
+  }
+}
+
+//! --glob command
+class GlobCommand extends Command {
+  #negate = false;
+  constructor(negate=false){
+    super();
+    this.#negate = negate;
+  }
+
+  process(t, ts, argv){
+    this.argcCheck(ts,argv,1,-1);
+    t.incrementTestCounter();
+    const sql = t.takeInputBuffer();
+    let rc = t.execSql(null, true, ResultBufferMode.ESCAPED,
+                       ResultRowMode.ONELINE, sql);
+    const result = t.getResultText();
+    const sArgs = Util.argvToString(argv);
+    //t2.verbose2(argv[0]," rc = ",rc," result buffer:\n", result,"\nargs:\n",sArgs);
+    const glob = Util.argvToString(argv);
+    rc = Util.strglob(glob, result);
+    if( (this.#negate && 0===rc) || (!this.#negate && 0!==rc) ){
+      ts.toss(argv[0], " mismatch: ", glob," vs input: ",result);
+    }
+  }
+}
+
+//! --notglob command
+class NotGlobCommand extends GlobCommand {
+  constructor(){super(true);}
+}
+
+//! --open command
+class OpenDbCommand extends Command {
+  #createIfNeeded = false;
+  constructor(createIfNeeded=false){
+    super();
+    this.#createIfNeeded = createIfNeeded;
+  }
+  process(t, ts, argv){
+    this.argcCheck(ts,argv,1);
+    t.openDb(argv[1], this.#createIfNeeded);
+  }
+}
+
+//! --new command
+class NewDbCommand extends OpenDbCommand {
+  constructor(){ super(true); }
+}
+
+//! Placeholder dummy/no-op commands
+class NoopCommand extends Command {
+  process(t, ts, argv){}
+}
+
+//! --null command
+class NullCommand extends Command {
+  process(st, ts, argv){
+    this.argcCheck(ts,argv,1);
+    st.nullValue( argv[1] );
+  }
+}
+
+//! --print command
+class PrintCommand extends Command {
+  process(st, ts, argv){
+    st.out(ts.getOutputPrefix(),': ');
+    if( 1==argv.length ){
+      st.out( st.getInputText() );
+    }else{
+      st.outln( Util.argvToString(argv) );
+    }
+  }
+}
+
+//! --result command
+class ResultCommand extends Command {
+  #bufferMode;
+  constructor(resultBufferMode = ResultBufferMode.ESCAPED){
+    super();
+    this.#bufferMode = resultBufferMode;
+  }
+  process(t, ts, argv){
+    this.argcCheck(ts,argv,0,-1);
+    t.incrementTestCounter();
+    const sql = t.takeInputBuffer();
+    //ts.verbose2(argv[0]," SQL =\n",sql);
+    t.execSql(null, false, this.#bufferMode, ResultRowMode.ONELINE, sql);
+    const result = t.getResultText().trim();
+    const sArgs = argv.length>1 ? Util.argvToString(argv) : "";
+    if( result !== sArgs ){
+      t.outln(argv[0]," FAILED comparison. Result buffer:\n",
+              result,"\nExpected result:\n",sArgs);
+      ts.toss(argv[0]+" comparison failed.");
+    }
+  }
+}
+
+//! --json command
+class JsonCommand extends ResultCommand {
+  constructor(){ super(ResultBufferMode.ASIS); }
+}
+
+//! --run command
+class RunCommand extends Command {
+  process(t, ts, argv){
+    this.argcCheck(ts,argv,0,1);
+    const pDb = (1==argv.length)
+      ? t.currentDb() : t.getDbById( parseInt(argv[1]) );
+    const sql = t.takeInputBuffer();
+    const rc = t.execSql(pDb, false, ResultBufferMode.NONE,
+                       ResultRowMode.ONELINE, sql);
+    if( 0!==rc && t.verbosity()>0 ){
+      const msg = sqlite3.capi.sqlite3_errmsg(pDb);
+      ts.verbose2(argv[0]," non-fatal command error #",rc,": ",
+                  msg,"\nfor SQL:\n",sql);
+    }
+  }
+}
+
+//! --tableresult command
+class TableResultCommand extends Command {
+  #jsonMode;
+  constructor(jsonMode=false){
+    super();
+    this.#jsonMode = jsonMode;
+  }
+  process(t, ts, argv){
+    this.argcCheck(ts,argv,0);
+    t.incrementTestCounter();
+    let body = ts.fetchCommandBody(t);
+    if( null===body ) ts.toss("Missing ",argv[0]," body.");
+    body = body.trim();
+    if( !body.endsWith("\n--end") ){
+      ts.toss(argv[0], " must be terminated with --end\\n");
+    }else{
+      body = body.substring(0, body.length-6);
+    }
+    const globs = body.split(/\s*\n\s*/);
+    if( globs.length < 1 ){
+      ts.toss(argv[0], " requires 1 or more ",
+              (this.#jsonMode ? "json snippets" : "globs"),".");
+    }
+    const sql = t.takeInputBuffer();
+    t.execSql(null, true,
+              this.#jsonMode ? ResultBufferMode.ASIS : ResultBufferMode.ESCAPED,
+              ResultRowMode.NEWLINE, sql);
+    const rbuf = t.getResultText().trim();
+    const res = rbuf.split(/\r?\n/);
+    if( res.length !== globs.length ){
+      ts.toss(argv[0], " failure: input has ", res.length,
+              " row(s) but expecting ",globs.length);
+    }
+    for(let i = 0; i < res.length; ++i){
+      const glob = globs[i].replaceAll(/\s+/g," ").trim();
+      //ts.verbose2(argv[0]," <<",glob,">> vs <<",res[i],">>");
+      if( this.#jsonMode ){
+        if( glob!==res[i] ){
+          ts.toss(argv[0], " json <<",glob, ">> does not match: <<",
+                  res[i],">>");
+        }
+      }else if( 0!=Util.strglob(glob, res[i]) ){
+        ts.toss(argv[0], " glob <<",glob,">> does not match: <<",res[i],">>");
+      }
+    }
+  }
+}
+
+//! --json-block command
+class JsonBlockCommand extends TableResultCommand {
+  constructor(){ super(true); }
+}
+
+//! --testcase command
+class TestCaseCommand extends Command {
+  process(tester, script, argv){
+    this.argcCheck(script, argv,1);
+    script.testCaseName(argv[1]);
+    tester.clearResultBuffer();
+    tester.clearInputBuffer();
+  }
+}
+
+
+//! --verbosity command
+class VerbosityCommand extends Command {
+  process(t, ts, argv){
+    this.argcCheck(ts,argv,1);
+    ts.verbosity( parseInt(argv[1]) );
+  }
+}
+
+class CommandDispatcher {
+  static map = newObj();
+
+  static getCommandByName(name){
+    let rv = CommandDispatcher.map[name];
+    if( rv ) return rv;
+    switch(name){
+      case "close":        rv = new CloseDbCommand(); break;
+      case "column-names": rv = new ColumnNamesCommand(); break;
+      case "db":           rv = new DbCommand(); break;
+      case "glob":         rv = new GlobCommand(); break;
+      case "json":         rv = new JsonCommand(); break;
+      case "json-block":   rv = new JsonBlockCommand(); break;
+      case "new":          rv = new NewDbCommand(); break;
+      case "notglob":      rv = new NotGlobCommand(); break;
+      case "null":         rv = new NullCommand(); break;
+      case "oom":          rv = new NoopCommand(); break;
+      case "open":         rv = new OpenDbCommand(); break;
+      case "print":        rv = new PrintCommand(); break;
+      case "result":       rv = new ResultCommand(); break;
+      case "run":          rv = new RunCommand(); break;
+      case "tableresult":  rv = new TableResultCommand(); break;
+      case "testcase":     rv = new TestCaseCommand(); break;
+      case "verbosity":    rv = new VerbosityCommand(); break;
+    }
+    if( rv ){
+      CommandDispatcher.map[name] = rv;
+    }
+    return rv;
+  }
+
+  static dispatch(tester, testScript, argv){
+    const cmd = CommandDispatcher.getCommandByName(argv[0]);
+    if( !cmd ){
+      toss(UnknownCommand,testScript,argv[0]);
+    }
+    cmd.process(tester, testScript, argv);
+  }
+}/*CommandDispatcher*/
+
+const namespace = newObj({
+  Command,
+  DbException,
+  IncompatibleDirective,
+  Outer,
+  SQLTester,
+  SQLTesterException,
+  TestScript,
+  TestScriptFailed,
+  UnknownCommand,
+  Util,
+  sqlite3
+});
+
+export {namespace as default};
diff --git a/ext/wasm/SQLTester/SQLTester.run.mjs b/ext/wasm/SQLTester/SQLTester.run.mjs
new file mode 100644
index 0000000000000000000000000000000000000000..bf20c2ceed4408f9aa32032e127194d1d3802159
--- /dev/null
+++ b/ext/wasm/SQLTester/SQLTester.run.mjs
@@ -0,0 +1,151 @@
+/*
+** 2023-08-29
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file contains a test application for SQLTester.mjs. It loads
+** test scripts and runs them through the SQLTester class.
+*/
+import {default as ns} from './SQLTester.mjs';
+import {default as allTests} from './test-list.mjs';
+
+globalThis.sqlite3 = ns.sqlite3;
+const log = function f(...args){
+  console.log('SQLTester.run:',...args);
+  return f;
+};
+
+const out = function f(...args){ return f.outer.out(...args) };
+out.outer = new ns.Outer();
+out.outer.getOutputPrefix = ()=>'SQLTester.run: ';
+const outln = (...args)=>{ return out.outer.outln(...args) };
+
+const affirm = function(expr, msg){
+  if( !expr ){
+    throw new Error(arguments[1]
+                    ? ("Assertion failed: "+arguments[1])
+                    : "Assertion failed");
+  }
+}
+
+let ts = new ns.TestScript('SQLTester-sanity-check.test',`
+/*
+** This is a comment. There are many like it but this one is mine.
+**
+** SCRIPT_MODULE_NAME:      sanity-check-0
+** xMIXED_MODULE_NAME:       mixed-module
+** xMODULE_NAME:             module-name
+** xREQUIRED_PROPERTIES:      small fast reliable
+** xREQUIRED_PROPERTIES:      RECURSIVE_TRIGGERS
+** xREQUIRED_PROPERTIES:      TEMPSTORE_FILE TEMPSTORE_MEM
+** xREQUIRED_PROPERTIES:      AUTOVACUUM INCRVACUUM
+**
+*/
+/* --verbosity 3 */
+/* ---must-fail */
+/* # must fail */
+/* --verbosity 0 */
+--print Hello, world.
+--close all
+--oom
+--db 0
+--new my.db
+--null zilch
+--testcase 1.0
+SELECT 1, null;
+--result 1 zilch
+--glob *zil*
+--notglob *ZIL*
+SELECT 1, 2;
+intentional error;
+--run
+/* ---intentional-failure */
+--testcase json-1
+SELECT json_array(1,2,3)
+--json [1,2,3]
+--testcase tableresult-1
+  select 1, 'a' UNION
+  select 2, 'b' UNION
+  select 3, 'c' ORDER by 1
+--tableresult
+  # [a-z]
+  2 b
+  3 c
+--end
+--testcase json-block-1
+  select json_array(1,2,3);
+  select json_object('a',1,'b',2);
+--json-block
+  [1,2,3]
+  {"a":1,"b":2}
+--end
+--testcase col-names-on
+--column-names 1
+  select 1 as 'a', 2 as 'b';
+--result a 1 b 2
+--testcase col-names-off
+--column-names 0
+  select 1 as 'a', 2 as 'b';
+--result 1 2
+--close
+--testcase the-end
+--print Until next time
+`);
+
+const sqt = new ns.SQLTester()
+      .setLogger(console.log.bind(console))
+      .verbosity(1)
+      .addTestScript(ts);
+sqt.outer().outputPrefix('');
+
+const runTests = function(){
+  try{
+    if( 0 ){
+      affirm( !sqt.getCurrentDb(), 'sqt.getCurrentDb()' );
+      sqt.openDb('/foo.db', true);
+      affirm( !!sqt.getCurrentDb(),'sqt.getCurrentDb()' );
+      affirm( 'zilch' !== sqt.nullValue() );
+      ts.run(sqt);
+      affirm( 'zilch' === sqt.nullValue() );
+      sqt.addTestScript(ts);
+    }else{
+      for(const t of allTests){
+        sqt.addTestScript( new ns.TestScript(t) );
+      }
+      allTests.length = 0;
+    }
+    sqt.runTests();
+  }finally{
+    //log( "Metrics:", sqt.metrics );
+    sqt.reset();
+  }
+};
+
+if( globalThis.WorkerGlobalScope ){
+  const wPost = (type,payload)=>globalThis.postMessage({type, payload});
+  globalThis.onmessage = function({data}){
+    switch(data.type){
+      case 'run-tests':{
+        try{ runTests(); }
+        finally{ wPost('tests-end', sqt.metrics); }
+        break;
+      }
+      default:
+        log("unhandled onmessage: ",data);
+        break;
+    }
+  };
+  sqt.setLogger((msg)=>{
+    wPost('stdout', {message: msg});
+  });
+  wPost('is-ready');
+  //globalThis.onmessage({data:{type:'run-tests'}});
+}else{
+  runTests();
+}
diff --git a/ext/wasm/SQLTester/index.html b/ext/wasm/SQLTester/index.html
new file mode 100644
index 0000000000000000000000000000000000000000..2d85b91163c3f22021fd77b4a6840d803f989dbf
--- /dev/null
+++ b/ext/wasm/SQLTester/index.html
@@ -0,0 +1,125 @@
+<!doctype html>
+<html lang="en-us">
+  <head>
+    <meta charset="utf-8">
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+    <link rel="shortcut icon" href="data:image/x-icon;," type="image/x-icon">
+    <!--link rel="stylesheet" href="../common/emscripten.css"/-->
+    <link rel="stylesheet" href="../common/testing.css"/>
+    <title>SQLTester</title>
+  </head>
+  <style>
+    fieldset {
+        display: flex;
+        flex-direction: row;
+        padding-right: 1em;
+    }
+    fieldset > :not(.legend) {
+        display: flex;
+        flex-direction: row;
+        padding-right: 1em;
+    }
+  </style>
+  <body>
+    <h1>SQLTester for JS/WASM</h1>
+    <p>This app reads in a build-time-defined set of SQLTester test
+      scripts and runs them through the test suite.
+    </p>
+    <fieldset>
+      <legend>Options</legend>
+      <span class='input-wrapper'>
+        <input type='checkbox' id='cb-log-reverse' checked>
+        <label for='cb-log-reverse'>Reverse log order?</label>
+      </span>
+      <input type='button' id='btn-run-tests' value='Run tests'/>
+    </fieldset>
+    <div id='test-output'>Test output will go here.</div>
+    <!--script src='SQLTester.run.mjs' type='module'></script-->
+    <script>
+      (async function(){
+        const W = new Worker('SQLTester.run.mjs',{
+          type: 'module'
+        });
+        const wPost = (type,payload)=>W.postMessage({type,payload});
+        const mapToString = (v)=>{
+          switch(typeof v){
+            case 'string': return v;
+            case 'number': case 'boolean':
+            case 'undefined': case 'bigint':
+              return ''+v;
+            default: break;
+          }
+          if(null===v) return 'null';
+          if(v instanceof Error){
+            v = {
+              message: v.message,
+              stack: v.stack,
+              errorClass: v.name
+            };
+          }
+          return JSON.stringify(v,undefined,2);
+        };
+        const normalizeArgs = (args)=>args.map(mapToString);
+        const logTarget = document.querySelector('#test-output');
+        const logClass = function(cssClass,...args){
+          const ln = document.createElement('div');
+          if(cssClass){
+            for(const c of (Array.isArray(cssClass) ? cssClass : [cssClass])){
+              ln.classList.add(c);
+            }
+          }
+          ln.append(document.createTextNode(normalizeArgs(args).join(' ')));
+          logTarget.append(ln);
+        };
+        {
+          const cbReverse = document.querySelector('#cb-log-reverse');
+          const cbReverseKey = 'SQLTester:cb-log-reverse';
+          const cbReverseIt = ()=>{
+            logTarget.classList[cbReverse.checked ? 'add' : 'remove']('reverse');
+          };
+          cbReverse.addEventListener('change', cbReverseIt, true);
+          cbReverseIt();
+        }
+
+        const btnRun = document.querySelector('#btn-run-tests');
+        const runTests = ()=>{
+          btnRun.setAttribute('disabled','disabled');
+          wPost('run-tests');
+          logTarget.innerText = 'Running tests...';
+        }
+        btnRun.addEventListener('click', runTests);
+        const log2 = function f(...args){
+          logClass('', ...args);
+          return f;
+        };
+        const log = function f(...args){
+          logClass('','index.html:',...args);
+          return f;
+        };
+
+        const timerId = setTimeout( ()=>{
+          logClass('error',"The SQLTester module is taking an unusually ",
+                   "long time to load. More information may be available",
+                   "in the dev console.");
+        }, 3000 /* assuming localhost */ );
+
+        W.onmessage = function({data}){
+          switch(data.type){
+            case 'stdout': log2(data.payload.message); break;
+            case 'tests-end':
+              btnRun.removeAttribute('disabled');
+              delete data.payload.nTest;
+              log("test results:",data.payload);
+              break;
+            case 'is-ready':
+              clearTimeout(timerId);
+              runTests(); break;
+            default:
+              log("unhandled onmessage",data);
+              break;
+          }
+        };
+      })();
+    </script>
+  </body>
+</html>
diff --git a/ext/wasm/SQLTester/touint8array.c b/ext/wasm/SQLTester/touint8array.c
new file mode 100644
index 0000000000000000000000000000000000000000..b03ad42f03c60811f1875528e6e0e2d8e13ff9a7
--- /dev/null
+++ b/ext/wasm/SQLTester/touint8array.c
@@ -0,0 +1,29 @@
+/*
+** 2023-08-29
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file contains a tool for writing out the contents of stdin as
+** a comma-separated list of numbers, one per byte.
+*/
+
+#include <stdio.h>
+int main(int argc, char const **argv){
+  int i;
+  int rc = 0, colWidth = 30;
+  int ch;
+  printf("[");
+  for( i=0; EOF!=(ch = fgetc(stdin)); ++i ){
+    if( 0!=i ) printf(",");
+    if( i && 0==(i%colWidth) ) puts("");
+    printf("%d",ch);
+  }
+  printf("]");
+  return rc;
+}
diff --git a/ext/wasm/api/EXPORTED_FUNCTIONS.sqlite3-core b/ext/wasm/api/EXPORTED_FUNCTIONS.sqlite3-core
new file mode 100644
index 0000000000000000000000000000000000000000..2578002ce40015851e88938ee0cca6177a8e31bc
--- /dev/null
+++ b/ext/wasm/api/EXPORTED_FUNCTIONS.sqlite3-core
@@ -0,0 +1,155 @@
+_malloc
+_free
+_realloc
+_sqlite3_aggregate_context
+_sqlite3_auto_extension
+_sqlite3_bind_blob
+_sqlite3_bind_double
+_sqlite3_bind_int
+_sqlite3_bind_int64
+_sqlite3_bind_null
+_sqlite3_bind_parameter_count
+_sqlite3_bind_parameter_index
+_sqlite3_bind_parameter_name
+_sqlite3_bind_pointer
+_sqlite3_bind_text
+_sqlite3_busy_handler
+_sqlite3_busy_timeout
+_sqlite3_cancel_auto_extension
+_sqlite3_changes
+_sqlite3_changes64
+_sqlite3_clear_bindings
+_sqlite3_close_v2
+_sqlite3_collation_needed
+_sqlite3_column_blob
+_sqlite3_column_bytes
+_sqlite3_column_count
+_sqlite3_column_decltype
+_sqlite3_column_double
+_sqlite3_column_int
+_sqlite3_column_int64
+_sqlite3_column_name
+_sqlite3_column_text
+_sqlite3_column_type
+_sqlite3_column_value
+_sqlite3_commit_hook
+_sqlite3_compileoption_get
+_sqlite3_compileoption_used
+_sqlite3_complete
+_sqlite3_context_db_handle
+_sqlite3_create_collation
+_sqlite3_create_collation_v2
+_sqlite3_create_function
+_sqlite3_create_function_v2
+_sqlite3_data_count
+_sqlite3_db_filename
+_sqlite3_db_handle
+_sqlite3_db_name
+_sqlite3_db_readonly
+_sqlite3_db_status
+_sqlite3_deserialize
+_sqlite3_errcode
+_sqlite3_errmsg
+_sqlite3_error_offset
+_sqlite3_errstr
+_sqlite3_exec
+_sqlite3_expanded_sql
+_sqlite3_extended_errcode
+_sqlite3_extended_result_codes
+_sqlite3_file_control
+_sqlite3_finalize
+_sqlite3_free
+_sqlite3_get_auxdata
+_sqlite3_get_autocommit
+_sqlite3_initialize
+_sqlite3_interrupt
+_sqlite3_is_interrupted
+_sqlite3_keyword_count
+_sqlite3_keyword_name
+_sqlite3_keyword_check
+_sqlite3_last_insert_rowid
+_sqlite3_libversion
+_sqlite3_libversion_number
+_sqlite3_limit
+_sqlite3_malloc
+_sqlite3_malloc64
+_sqlite3_msize
+_sqlite3_open
+_sqlite3_open_v2
+_sqlite3_overload_function
+_sqlite3_prepare_v2
+_sqlite3_prepare_v3
+_sqlite3_randomness
+_sqlite3_realloc
+_sqlite3_realloc64
+_sqlite3_reset
+_sqlite3_reset_auto_extension
+_sqlite3_result_blob
+_sqlite3_result_double
+_sqlite3_result_error
+_sqlite3_result_error_code
+_sqlite3_result_error_nomem
+_sqlite3_result_error_toobig
+_sqlite3_result_int
+_sqlite3_result_int64
+_sqlite3_result_null
+_sqlite3_result_pointer
+_sqlite3_result_subtype
+_sqlite3_result_text
+_sqlite3_result_zeroblob
+_sqlite3_result_zeroblob64
+_sqlite3_rollback_hook
+_sqlite3_serialize
+_sqlite3_set_auxdata
+_sqlite3_set_last_insert_rowid
+_sqlite3_shutdown
+_sqlite3_sourceid
+_sqlite3_sql
+_sqlite3_status
+_sqlite3_status64
+_sqlite3_step
+_sqlite3_stmt_busy
+_sqlite3_stmt_explain
+_sqlite3_stmt_isexplain
+_sqlite3_stmt_readonly
+_sqlite3_stmt_status
+_sqlite3_strglob
+_sqlite3_stricmp
+_sqlite3_strlike
+_sqlite3_strnicmp
+_sqlite3_table_column_metadata
+_sqlite3_total_changes
+_sqlite3_total_changes64
+_sqlite3_trace_v2
+_sqlite3_txn_state
+_sqlite3_update_hook
+_sqlite3_uri_boolean
+_sqlite3_uri_int64
+_sqlite3_uri_key
+_sqlite3_uri_parameter
+_sqlite3_user_data
+_sqlite3_value_blob
+_sqlite3_value_bytes
+_sqlite3_value_double
+_sqlite3_value_dup
+_sqlite3_value_free
+_sqlite3_value_frombind
+_sqlite3_value_int
+_sqlite3_value_int64
+_sqlite3_value_nochange
+_sqlite3_value_numeric_type
+_sqlite3_value_pointer
+_sqlite3_value_subtype
+_sqlite3_value_text
+_sqlite3_value_type
+_sqlite3_vfs_find
+_sqlite3_vfs_register
+_sqlite3_vfs_unregister
+_sqlite3_vtab_collation
+_sqlite3_vtab_distinct
+_sqlite3_vtab_in
+_sqlite3_vtab_in_first
+_sqlite3_vtab_in_next
+_sqlite3_vtab_nochange
+_sqlite3_vtab_on_conflict
+_sqlite3_vtab_rhs_value
diff --git a/ext/wasm/api/EXPORTED_FUNCTIONS.sqlite3-extras b/ext/wasm/api/EXPORTED_FUNCTIONS.sqlite3-extras
new file mode 100644
index 0000000000000000000000000000000000000000..e635d93b32ff696a77d924997b9c67d206fd1570
--- /dev/null
+++ b/ext/wasm/api/EXPORTED_FUNCTIONS.sqlite3-extras
@@ -0,0 +1,63 @@
+_sqlite3_create_window_function
+_sqlite3_progress_handler
+_sqlite3_set_authorizer
+_sqlite3_preupdate_blobwrite
+_sqlite3_preupdate_count
+_sqlite3_preupdate_depth
+_sqlite3_preupdate_hook
+_sqlite3_preupdate_new
+_sqlite3_preupdate_old
+_sqlite3changegroup_add
+_sqlite3changegroup_add_strm
+_sqlite3changegroup_delete
+_sqlite3changegroup_new
+_sqlite3changegroup_output
+_sqlite3changegroup_output_strm
+_sqlite3changeset_apply
+_sqlite3changeset_apply_strm
+_sqlite3changeset_apply_v2
+_sqlite3changeset_apply_v2_strm
+_sqlite3changeset_concat
+_sqlite3changeset_concat_strm
+_sqlite3changeset_conflict
+_sqlite3changeset_finalize
+_sqlite3changeset_fk_conflicts
+_sqlite3changeset_invert
+_sqlite3changeset_invert_strm
+_sqlite3changeset_new
+_sqlite3changeset_next
+_sqlite3changeset_old
+_sqlite3changeset_op
+_sqlite3changeset_pk
+_sqlite3changeset_start
+_sqlite3changeset_start_strm
+_sqlite3changeset_start_v2
+_sqlite3changeset_start_v2_strm
+_sqlite3session_attach
+_sqlite3session_changeset
+_sqlite3session_changeset_size
+_sqlite3session_changeset_strm
+_sqlite3session_config
+_sqlite3session_create
+_sqlite3session_delete
+_sqlite3session_diff
+_sqlite3session_enable
+_sqlite3session_indirect
+_sqlite3session_isempty
+_sqlite3session_memory_used
+_sqlite3session_object_config
+_sqlite3session_patchset
+_sqlite3session_patchset_strm
+_sqlite3session_table_filter
+_sqlite3_create_module
+_sqlite3_create_module_v2
+_sqlite3_declare_vtab
+_sqlite3_drop_modules
+_sqlite3_vtab_collation
+_sqlite3_vtab_distinct
+_sqlite3_vtab_in
+_sqlite3_vtab_in_first
+_sqlite3_vtab_in_next
+_sqlite3_vtab_nochange
+_sqlite3_vtab_on_conflict
+_sqlite3_vtab_rhs_value
diff --git a/ext/wasm/api/EXPORTED_FUNCTIONS.sqlite3-see b/ext/wasm/api/EXPORTED_FUNCTIONS.sqlite3-see
new file mode 100644
index 0000000000000000000000000000000000000000..83f3a97dbca2788d4f151c80cb2ee52e93122aae
--- /dev/null
+++ b/ext/wasm/api/EXPORTED_FUNCTIONS.sqlite3-see
@@ -0,0 +1,5 @@
+_sqlite3_key
+_sqlite3_key_v2
+_sqlite3_rekey
+_sqlite3_rekey_v2
+_sqlite3_activate_see
diff --git a/ext/wasm/api/EXPORTED_RUNTIME_METHODS.sqlite3-api b/ext/wasm/api/EXPORTED_RUNTIME_METHODS.sqlite3-api
new file mode 100644
index 0000000000000000000000000000000000000000..aab1d8bd3739923f8870261a2b81256ea9e2170c
--- /dev/null
+++ b/ext/wasm/api/EXPORTED_RUNTIME_METHODS.sqlite3-api
@@ -0,0 +1,3 @@
+FS
+wasmMemory
+
diff --git a/ext/wasm/api/README.md b/ext/wasm/api/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..ebd4aaacb1a02d459845c4881ca733965fb5aa62
--- /dev/null
+++ b/ext/wasm/api/README.md
@@ -0,0 +1,166 @@
+# sqlite3-api.js And Friends
+
+This is the README for the files `sqlite3-*.js` and
+`sqlite3-wasm.c`. This collection of files is used to build a
+single-file distribution of the sqlite3 WASM API. It is broken into
+multiple JS files because:
+
+1. To facilitate including or excluding certain components for
+   specific use cases. e.g. by removing `sqlite3-api-oo1.js` if the
+   OO#1 API is not needed.
+
+2. To facilitate modularizing the pieces for use in different WASM
+   build environments. e.g. the files `post-js-*.js` are for use with
+   Emscripten's `--post-js` feature, and nowhere else.
+
+3. Certain components must be in their own standalone files in order
+   to be loaded as JS Workers.
+
+Note that the structure described here is the current state of things,
+as of this writing, but is not set in stone forever and may change
+at any time.
+
+The overall idea is that the following files get concatenated
+together, in the listed order, the resulting file is loaded by a
+browser client:
+
+- **`sqlite3-api-prologue.js`**\  
+  Contains the initial bootstrap setup of the sqlite3 API
+  objects. This is exposed as a function, rather than objects, so that
+  the next step can pass in a config object which abstracts away parts
+  of the WASM environment, to facilitate plugging it in to arbitrary
+  WASM toolchains.
+- **`../common/whwasmutil.js`**\  
+  A semi-third-party collection of JS/WASM utility code intended to
+  replace much of the Emscripten glue. The sqlite3 APIs internally use
+  these APIs instead of their Emscripten counterparts, in order to be
+  more portable to arbitrary WASM toolchains. This API is
+  configurable, in principle, for use with arbitrary WASM
+  toolchains. It is "semi-third-party" in that it was created in order
+  to support this tree but is standalone and maintained together
+  with...
+- **`../jaccwabyt/jaccwabyt.js`**\  
+  Another semi-third-party API which creates bindings between JS
+  and C structs, such that changes to the struct state from either JS
+  or C are visible to the other end of the connection. This is also an
+  independent spinoff project, conceived for the sqlite3 project but
+  maintained separately.
+- **`sqlite3-api-glue.js`**\  
+  Invokes functionality exposed by the previous two files to flesh out
+  low-level parts of `sqlite3-api-prologue.js`. Most of these pieces
+  related to populating the `sqlite3.capi.wasm` object. This file
+  also deletes most global-scope symbols the above files create,
+  effectively moving them into the scope being used for initializing
+  the API.
+- **`<build>/sqlite3-api-build-version.js`**\  
+  Gets created by the build process and populates the
+  `sqlite3.version` object. This part is not critical, but records the
+  version of the library against which this module was built.
+- **`sqlite3-api-oo1.js`**\  
+  Provides a high-level object-oriented wrapper to the lower-level C
+  API, colloquially known as OO API #1. Its API is similar to other
+  high-level sqlite3 JS wrappers and should feel relatively familiar
+  to anyone familiar with such APIs. That said, it is not a "required
+  component" and can be elided from builds which do not want it.
+- **`sqlite3-api-worker1.js`**\  
+  A Worker-thread-based API which uses OO API #1 to provide an
+  interface to a database which can be driven from the main Window
+  thread via the Worker message-passing interface. Like OO API #1,
+  this is an optional component, offering one of any number of
+  potential implementations for such an API.
+    - **`sqlite3-worker1.js`**\  
+      Is not part of the amalgamated sources and is intended to be
+      loaded by a client Worker thread. It loads the sqlite3 module
+      and runs the Worker #1 API which is implemented in
+      `sqlite3-api-worker1.js`.
+    - **`sqlite3-worker1-promiser.js`**\  
+      Is likewise not part of the amalgamated sources and provides
+      a Promise-based interface into the Worker #1 API. This is
+      a far user-friendlier way to interface with databases running
+      in a Worker thread.
+- **`sqlite3-vfs-helper.js`**\  
+  Installs the `sqlite3.vfs` namespace, which contain helpers for use
+  by downstream code which creates `sqlite3_vfs` implementations.
+- **`sqlite3-vtab-helper.js`**\  
+  Installs the `sqlite3.vtab` namespace, which contain helpers for use
+  by downstream code which creates `sqlite3_module` implementations.
+- **`sqlite3-vfs-opfs.c-pp.js`**\  
+  is an sqlite3 VFS implementation which supports the Origin-Private
+  FileSystem (OPFS) as a storage layer to provide persistent storage
+  for database files in a browser. It requires...
+    - **`sqlite3-opfs-async-proxy.js`**\  
+      is the asynchronous backend part of the OPFS proxy. It speaks
+      directly to the (async) OPFS API and channels those results back
+      to its synchronous counterpart. This file, because it must be
+      started in its own Worker, is not part of the amalgamation.
+- **`sqlite3-vfs-opfs-sahpool.c-pp.js`**\  
+  is another sqlite3 VFS supporting the OPFS, but uses a completely
+  different approach that the above-listed one.
+- **`sqlite3-api-cleanup.js`**\  
+  The previous files do not immediately extend the library. Instead
+  they add callback functions to be called during its
+  bootstrapping. Some also temporarily create global objects in order
+  to communicate their state to the files which follow them. This file
+  cleans up any dangling globals and runs the API bootstrapping
+  process, which is what finally executes the initialization code
+  installed by the previous files. As of this writing, this code
+  ensures that the previous files leave no more than a single global
+  symbol installed. When adapting the API for non-Emscripten
+  toolchains, this "should" be the only file where changes are needed.
+
+
+**Files with the extension `.c-pp.js`** are intended [to be processed
+with `c-pp`](#c-pp), noting that such preprocessing may be applied
+after all of the relevant files are concatenated. That extension is
+used primarily to keep the code maintainers cognisant of the fact that
+those files contain constructs which may not run as-is in any given
+JavaScript environment.
+
+The build process glues those files together, resulting in
+`sqlite3-api.js`, which is everything except for the
+`pre/post-js-*.js` files, and `sqlite3.js`, which is the
+Emscripten-generated amalgamated output and includes the
+`pre/post-js-*.js` parts, as well as the Emscripten-provided module
+loading pieces.
+
+The non-JS outlier file is `sqlite3-wasm.c`: it is a proxy for
+`sqlite3.c` which `#include`'s that file and adds a couple more
+WASM-specific helper functions, at least one of which requires access
+to private/static `sqlite3.c` internals. `sqlite3.wasm` is compiled
+from this file rather than `sqlite3.c`.
+
+The following files are part of the build process but are injected
+into the build-generated `sqlite3.js` along with `sqlite3-api.js`.
+
+- `extern-pre-js.js`\  
+  Emscripten-specific header for Emscripten's `--extern-pre-js`
+  flag. As of this writing, that file is only used for experimentation
+  purposes and holds no code relevant to the production deliverables.
+- `pre-js.c-pp.js`\  
+  Emscripten-specific header for Emscripten's `--pre-js` flag. This
+  file is intended as a place to override certain Emscripten behavior
+  before it starts up, but corner-case Emscripten bugs keep that from
+  being a reality.
+- `post-js-header.js`\  
+  Emscripten-specific header for the `--post-js` input. It opens up
+  a lexical scope by starting a post-run handler for Emscripten.
+- `post-js-footer.js`\  
+  Emscripten-specific footer for the `--post-js` input. This closes
+  off the lexical scope opened by `post-js-header.js`.
+- `extern-post-js.c-pp.js`\  
+  Emscripten-specific header for Emscripten's `--extern-post-js`
+  flag. This file overwrites the Emscripten-installed
+  `sqlite3InitModule()` function with one which, after the module is
+  loaded, also initializes the asynchronous parts of the sqlite3
+  module. For example, the OPFS VFS support.
+
+<a id='c-pp'></a>
+Preprocessing of Source Files
+------------------------------------------------------------------------
+
+Certain files in the build require preprocessing to filter in/out
+parts which differ between vanilla JS, ES6 Modules, and node.js
+builds. The preprocessor application itself is in
+[`c-pp.c`](/file/ext/wasm/c-pp.c) and the complete technical details
+of such preprocessing are maintained in
+[`GNUMakefile`](/file/ext/wasm/GNUmakefile).
diff --git a/ext/wasm/api/extern-post-js.c-pp.js b/ext/wasm/api/extern-post-js.c-pp.js
new file mode 100644
index 0000000000000000000000000000000000000000..63e55051c6f4abee3e756b944613dfce69c90bc7
--- /dev/null
+++ b/ext/wasm/api/extern-post-js.c-pp.js
@@ -0,0 +1,126 @@
+
+/* ^^^^ ACHTUNG: blank line at the start is necessary because
+   Emscripten will not add a newline in some cases and we need
+   a blank line for a sed-based kludge for the ES6 build. */
+/* extern-post-js.js must be appended to the resulting sqlite3.js
+   file. It gets its name from being used as the value for the
+   --extern-post-js=... Emscripten flag. Note that this code, unlike
+   most of the associated JS code, runs outside of the
+   Emscripten-generated module init scope, in the current
+   global scope. */
+//#if target=es6-module
+const toExportForESM =
+//#endif
+(function(){
+  /**
+     In order to hide the sqlite3InitModule()'s resulting
+     Emscripten module from downstream clients (and simplify our
+     documentation by being able to elide those details), we hide that
+     function and expose a hand-written sqlite3InitModule() to return
+     the sqlite3 object (most of the time).
+
+     Unfortunately, we cannot modify the module-loader/exporter-based
+     impls which Emscripten installs at some point in the file above
+     this.
+  */
+  const originalInit = sqlite3InitModule;
+  if(!originalInit){
+    throw new Error("Expecting globalThis.sqlite3InitModule to be defined by the Emscripten build.");
+  }
+  /**
+     We need to add some state which our custom Module.locateFile()
+     can see, but an Emscripten limitation currently prevents us from
+     attaching it to the sqlite3InitModule function object:
+
+     https://github.com/emscripten-core/emscripten/issues/18071
+
+     The only(?) current workaround is to temporarily stash this state
+     into the global scope and delete it when sqlite3InitModule()
+     is called.
+  */
+  const initModuleState = globalThis.sqlite3InitModuleState = Object.assign(Object.create(null),{
+    moduleScript: globalThis?.document?.currentScript,
+    isWorker: ('undefined' !== typeof WorkerGlobalScope),
+    location: globalThis.location,
+    urlParams:  globalThis?.location?.href
+      ? new URL(globalThis.location.href).searchParams
+      : new URLSearchParams()
+  });
+  initModuleState.debugModule =
+    initModuleState.urlParams.has('sqlite3.debugModule')
+    ? (...args)=>console.warn('sqlite3.debugModule:',...args)
+    : ()=>{};
+
+  if(initModuleState.urlParams.has('sqlite3.dir')){
+    initModuleState.sqlite3Dir = initModuleState.urlParams.get('sqlite3.dir') +'/';
+  }else if(initModuleState.moduleScript){
+    const li = initModuleState.moduleScript.src.split('/');
+    li.pop();
+    initModuleState.sqlite3Dir = li.join('/') + '/';
+  }
+
+  globalThis.sqlite3InitModule = function ff(...args){
+    //console.warn("Using replaced sqlite3InitModule()",globalThis.location);
+    return originalInit(...args).then((EmscriptenModule)=>{
+//#if wasmfs
+      if('undefined'!==typeof WorkerGlobalScope &&
+         EmscriptenModule['ENVIRONMENT_IS_PTHREAD']){
+        /** Workaround for wasmfs-generated worker, which calls this
+            routine from each individual thread and requires that its
+            argument be returned. The conditional criteria above are
+            fragile, based solely on inspection of the offending code,
+            not public Emscripten details. */
+        //console.warn("sqlite3InitModule() returning E-module.",EmscriptenModule);
+        return EmscriptenModule;
+      }
+//#endif
+      //console.warn("sqlite3InitModule() returning sqlite3 object.");
+      const s = EmscriptenModule.sqlite3;
+      s.scriptInfo = initModuleState;
+      //console.warn("sqlite3.scriptInfo =",s.scriptInfo);
+      if(ff.__isUnderTest) s.__isUnderTest = true;
+      const f = s.asyncPostInit;
+      delete s.asyncPostInit;
+      return f();
+    }).catch((e)=>{
+      console.error("Exception loading sqlite3 module:",e);
+      throw e;
+    });
+  };
+  globalThis.sqlite3InitModule.ready = originalInit.ready;
+
+  if(globalThis.sqlite3InitModuleState.moduleScript){
+    const sim = globalThis.sqlite3InitModuleState;
+    let src = sim.moduleScript.src.split('/');
+    src.pop();
+    sim.scriptDir = src.join('/') + '/';
+  }
+  initModuleState.debugModule('sqlite3InitModuleState =',initModuleState);
+  if(0){
+    console.warn("Replaced sqlite3InitModule()");
+    console.warn("globalThis.location.href =",globalThis.location.href);
+    if('undefined' !== typeof document){
+      console.warn("document.currentScript.src =",
+                   document?.currentScript?.src);
+    }
+  }
+//#ifnot target=es6-module
+// Emscripten does not inject these module-loader bits in ES6 module
+// builds and including them here breaks JS bundlers, so elide them
+// from ESM builds.
+  /* Replace the various module exports performed by the Emscripten
+     glue... */
+  if (typeof exports === 'object' && typeof module === 'object'){
+    module.exports = sqlite3InitModule;
+  }else if (typeof exports === 'object'){
+    exports["sqlite3InitModule"] = sqlite3InitModule;
+  }
+  /* AMD modules get injected in a way we cannot override,
+     so we can't handle those here. */
+//#endif // !target=es6-module
+  return globalThis.sqlite3InitModule /* required for ESM */;
+})();
+//#if target=es6-module
+sqlite3InitModule = toExportForESM;
+export default sqlite3InitModule;
+//#endif
diff --git a/ext/wasm/api/extern-pre-js.js b/ext/wasm/api/extern-pre-js.js
new file mode 100644
index 0000000000000000000000000000000000000000..7d47d33e330315f28a9ebce1581627ad0eeacce8
--- /dev/null
+++ b/ext/wasm/api/extern-pre-js.js
@@ -0,0 +1,7 @@
+/* extern-pre-js.js must be prepended to the resulting sqlite3.js
+   file. This file is currently only used for holding snippets during
+   test and development.
+
+   It gets its name from being used as the value for the
+   --extern-pre-js=... Emscripten flag.
+*/
diff --git a/ext/wasm/api/post-js-footer.js b/ext/wasm/api/post-js-footer.js
new file mode 100644
index 0000000000000000000000000000000000000000..58882cbd9c0ebfb7b2c811a08de180bd190a236f
--- /dev/null
+++ b/ext/wasm/api/post-js-footer.js
@@ -0,0 +1,4 @@
+/* The current function scope was opened via post-js-header.js, which
+   gets prepended to this at build-time. This file closes that
+   scope. */
+})/*postRun.push(...)*/;
diff --git a/ext/wasm/api/post-js-header.js b/ext/wasm/api/post-js-header.js
new file mode 100644
index 0000000000000000000000000000000000000000..7fd82a7d6c5b65bf025581fb2de89f4a0bf3f2c4
--- /dev/null
+++ b/ext/wasm/api/post-js-header.js
@@ -0,0 +1,28 @@
+/**
+   post-js-header.js is to be prepended to other code to create
+   post-js.js for use with Emscripten's --post-js flag. This code
+   requires that it be running in that context. The Emscripten
+   environment must have been set up already but it will not have
+   loaded its WASM when the code in this file is run. The function it
+   installs will be run after the WASM module is loaded, at which
+   point the sqlite3 JS API bits will get set up.
+*/
+if(!Module.postRun) Module.postRun = [];
+Module.postRun.push(function(Module/*the Emscripten-style module object*/){
+  'use strict';
+  /* This function will contain at least the following:
+
+     - post-js-header.js (this file)
+     - sqlite3-api-prologue.js  => Bootstrapping bits to attach the rest to
+     - common/whwasmutil.js     => Replacements for much of Emscripten's glue
+     - jaccwaby/jaccwabyt.js    => Jaccwabyt (C/JS struct binding)
+     - sqlite3-api-glue.js      => glues previous parts together
+     - sqlite3-api-oo.js        => SQLite3 OO API #1
+     - sqlite3-api-worker1.js   => Worker-based API
+     - sqlite3-vfs-helper.c-pp.js  => Utilities for VFS impls
+     - sqlite3-vtab-helper.c-pp.js => Utilities for virtual table impls
+     - sqlite3-vfs-opfs.c-pp.js  => OPFS VFS
+     - sqlite3-vfs-opfs-sahpool.c-pp.js => OPFS SAHPool VFS
+     - sqlite3-api-cleanup.js   => final API cleanup
+     - post-js-footer.js        => closes this postRun() function
+  */
diff --git a/ext/wasm/api/pre-js.c-pp.js b/ext/wasm/api/pre-js.c-pp.js
new file mode 100644
index 0000000000000000000000000000000000000000..4045fb11cdaf56ae948b328721f84c6b999799cb
--- /dev/null
+++ b/ext/wasm/api/pre-js.c-pp.js
@@ -0,0 +1,121 @@
+/**
+   BEGIN FILE: api/pre-js.js
+
+   This file is intended to be prepended to the sqlite3.js build using
+   Emscripten's --pre-js=THIS_FILE flag (or equivalent).
+*/
+
+// See notes in extern-post-js.js
+const sqlite3InitModuleState = globalThis.sqlite3InitModuleState
+      || Object.assign(Object.create(null),{
+        debugModule: ()=>{}
+      });
+delete globalThis.sqlite3InitModuleState;
+sqlite3InitModuleState.debugModule('globalThis.location =',globalThis.location);
+
+//#ifnot target=es6-bundler-friendly
+/**
+   This custom locateFile() tries to figure out where to load `path`
+   from. The intent is to provide a way for foo/bar/X.js loaded from a
+   Worker constructor or importScripts() to be able to resolve
+   foo/bar/X.wasm (in the latter case, with some help):
+
+   1) If URL param named the same as `path` is set, it is returned.
+
+   2) If sqlite3InitModuleState.sqlite3Dir is set, then (thatName + path)
+      is returned (note that it's assumed to end with '/').
+
+   3) If this code is running in the main UI thread AND it was loaded
+      from a SCRIPT tag, the directory part of that URL is used
+      as the prefix. (This form of resolution unfortunately does not
+      function for scripts loaded via importScripts().)
+
+   4) If none of the above apply, (prefix+path) is returned.
+*/
+Module['locateFile'] = function(path, prefix) {
+//#if target=es6-module
+  return new URL(path, import.meta.url).href;
+//#else
+  'use strict';
+  let theFile;
+  const up = this.urlParams;
+  if(up.has(path)){
+    theFile = up.get(path);
+  }else if(this.sqlite3Dir){
+    theFile = this.sqlite3Dir + path;
+  }else if(this.scriptDir){
+    theFile = this.scriptDir + path;
+  }else{
+    theFile = prefix + path;
+  }
+  this.debugModule(
+    "locateFile(",arguments[0], ',', arguments[1],")",
+    'sqlite3InitModuleState.scriptDir =',this.scriptDir,
+    'up.entries() =',Array.from(up.entries()),
+    "result =", theFile
+  );
+  return theFile;
+//#endif target=es6-module
+}.bind(sqlite3InitModuleState);
+//#endif ifnot target=es6-bundler-friendly
+
+//#if custom-Module.instantiateModule
+/**
+   Bug warning: a custom Module.instantiateWasm() does not work
+   in WASMFS builds:
+
+   https://github.com/emscripten-core/emscripten/issues/17951
+
+   In such builds we must disable this.
+*/
+const xNameOfInstantiateWasm =
+//#if wasmfs
+  false
+//#else
+  true /* This works, but it does not have the testing coverage in the
+          wild which Emscripten's default impl does, so we'll save
+          this option until we really need a custom
+          Module.instantiateWasm() */
+//#endif
+      ? 'instantiateWasm'
+      : 'emscripten-bug-17951';
+Module[xNameOfInstantiateWasm] = function callee(imports,onSuccess){
+  imports.env.foo = function(){};
+  const uri = Module.locateFile(
+    callee.uri, (
+      ('undefined'===typeof scriptDirectory/*var defined by Emscripten glue*/)
+        ? "" : scriptDirectory)
+  );
+  sqlite3InitModuleState.debugModule(
+    "instantiateWasm() uri =", uri
+  );
+  //console.warn("Custom instantiateModule",uri);
+  const wfetch = ()=>fetch(uri, {credentials: 'same-origin'});
+  const loadWasm = WebAssembly.instantiateStreaming
+        ? async ()=>{
+          return WebAssembly.instantiateStreaming(wfetch(), imports)
+            .then((arg)=>onSuccess(arg.instance, arg.module));
+        }
+        : async ()=>{ // Safari < v15
+          return wfetch()
+            .then(response => response.arrayBuffer())
+            .then(bytes => WebAssembly.instantiate(bytes, imports))
+            .then((arg)=>onSuccess(arg.instance, arg.module));
+        };
+  loadWasm();
+  return {};
+};
+/*
+  It is literally impossible to reliably get the name of _this_ script
+  at runtime, so impossible to derive X.wasm from script name
+  X.js. Thus we need, at build-time, to redefine
+  Module[xNameOfInstantiateWasm].uri by appending it to a build-specific
+  copy of this file with the name of the wasm file. This is apparently
+  why Emscripten hard-codes the name of the wasm file into their glue
+  scripts.
+*/
+Module[xNameOfInstantiateWasm].uri = 'sqlite3.wasm';
+//#endif custom-Module.instantiateModule
+/* END FILE: api/pre-js.js, noting that the build process may add a
+   line after this one to change the above .uri to a build-specific
+   one. */
diff --git a/ext/wasm/api/sqlite3-api-cleanup.js b/ext/wasm/api/sqlite3-api-cleanup.js
new file mode 100644
index 0000000000000000000000000000000000000000..65dbb4eb64c98ccc4478e95368afdcd4fd323300
--- /dev/null
+++ b/ext/wasm/api/sqlite3-api-cleanup.js
@@ -0,0 +1,63 @@
+/*
+  2022-07-22
+
+  The author disclaims copyright to this source code.  In place of a
+  legal notice, here is a blessing:
+
+  *   May you do good and not evil.
+  *   May you find forgiveness for yourself and forgive others.
+  *   May you share freely, never taking more than you give.
+
+  ***********************************************************************
+
+  This file is the tail end of the sqlite3-api.js constellation,
+  intended to be appended after all other sqlite3-api-*.js files so
+  that it can finalize any setup and clean up any global symbols
+  temporarily used for setting up the API's various subsystems.
+*/
+'use strict';
+if('undefined' !== typeof Module){ // presumably an Emscripten build
+  /**
+     Install a suitable default configuration for sqlite3ApiBootstrap().
+  */
+  const SABC = Object.assign(
+    Object.create(null), {
+      exports: ('undefined'===typeof wasmExports)
+        ? Module['asm']/* emscripten <=3.1.43 */
+        : wasmExports  /* emscripten >=3.1.44 */,
+      memory: Module.wasmMemory /* gets set if built with -sIMPORTED_MEMORY */
+    },
+    globalThis.sqlite3ApiConfig || {}
+  );
+
+  /**
+     For current (2022-08-22) purposes, automatically call
+     sqlite3ApiBootstrap().  That decision will be revisited at some
+     point, as we really want client code to be able to call this to
+     configure certain parts. Clients may modify
+     globalThis.sqlite3ApiBootstrap.defaultConfig to tweak the default
+     configuration used by a no-args call to sqlite3ApiBootstrap(),
+     but must have first loaded their WASM module in order to be
+     able to provide the necessary configuration state.
+  */
+  //console.warn("globalThis.sqlite3ApiConfig = ",globalThis.sqlite3ApiConfig);
+  globalThis.sqlite3ApiConfig = SABC;
+  let sqlite3;
+  try{
+    sqlite3 = globalThis.sqlite3ApiBootstrap();
+  }catch(e){
+    console.error("sqlite3ApiBootstrap() error:",e);
+    throw e;
+  }finally{
+    delete globalThis.sqlite3ApiBootstrap;
+    delete globalThis.sqlite3ApiConfig;
+  }
+
+  Module.sqlite3 = sqlite3 /* Needed for customized sqlite3InitModule() to be able to
+                              pass the sqlite3 object off to the client. */;
+}else{
+  console.warn("This is not running in an Emscripten module context, so",
+               "globalThis.sqlite3ApiBootstrap() is _not_ being called due to lack",
+               "of config info for the WASM environment.",
+               "It must be called manually.");
+}
diff --git a/ext/wasm/api/sqlite3-api-glue.c-pp.js b/ext/wasm/api/sqlite3-api-glue.c-pp.js
new file mode 100644
index 0000000000000000000000000000000000000000..680218370a850886675e832232660d68fdf02bad
--- /dev/null
+++ b/ext/wasm/api/sqlite3-api-glue.c-pp.js
@@ -0,0 +1,1922 @@
+/*
+  2022-07-22
+
+  The author disclaims copyright to this source code.  In place of a
+  legal notice, here is a blessing:
+
+  *   May you do good and not evil.
+  *   May you find forgiveness for yourself and forgive others.
+  *   May you share freely, never taking more than you give.
+
+  ***********************************************************************
+
+  This file glues together disparate pieces of JS which are loaded in
+  previous steps of the sqlite3-api.js bootstrapping process:
+  sqlite3-api-prologue.js, whwasmutil.js, and jaccwabyt.js. It
+  initializes the main API pieces so that the downstream components
+  (e.g. sqlite3-api-oo1.js) have all of the infrastructure that they
+  need.
+*/
+globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
+  'use strict';
+  const toss = (...args)=>{throw new Error(args.join(' '))};
+  const toss3 = sqlite3.SQLite3Error.toss;
+  const capi = sqlite3.capi, wasm = sqlite3.wasm, util = sqlite3.util;
+  globalThis.WhWasmUtilInstaller(wasm);
+  delete globalThis.WhWasmUtilInstaller;
+
+  if(0){
+    /**
+       Please keep this block around as a maintenance reminder
+       that we cannot rely on this type of check.
+
+       This block fails on Safari, per a report at
+       https://sqlite.org/forum/forumpost/e5b20e1feb.
+
+       It turns out that what Safari serves from the indirect function
+       table (e.g. wasm.functionEntry(X)) is anonymous functions which
+       wrap the WASM functions, rather than returning the WASM
+       functions themselves. That means comparison of such functions
+       is useless for determining whether or not we have a specific
+       function from wasm.exports. i.e. if function X is indirection
+       function table entry N then wasm.exports.X is not equal to
+       wasm.functionEntry(N) in Safari, despite being so in the other
+       browsers.
+    */
+    /**
+       Find a mapping for SQLITE_WASM_DEALLOC, which the API
+       guarantees is a WASM pointer to the same underlying function as
+       wasm.dealloc() (noting that wasm.dealloc() is permitted to be a
+       JS wrapper around the WASM function). There is unfortunately no
+       O(1) algorithm for finding this pointer: we have to walk the
+       WASM indirect function table to find it. However, experience
+       indicates that that particular function is always very close to
+       the front of the table (it's been entry #3 in all relevant
+       tests).
+    */
+    const dealloc = wasm.exports[sqlite3.config.deallocExportName];
+    const nFunc = wasm.functionTable().length;
+    let i;
+    for(i = 0; i < nFunc; ++i){
+      const e = wasm.functionEntry(i);
+      if(dealloc === e){
+        capi.SQLITE_WASM_DEALLOC = i;
+        break;
+      }
+    }
+    if(dealloc !== wasm.functionEntry(capi.SQLITE_WASM_DEALLOC)){
+      toss("Internal error: cannot find function pointer for SQLITE_WASM_DEALLOC.");
+    }
+  }
+
+  /**
+     Signatures for the WASM-exported C-side functions. Each entry
+     is an array with 2+ elements:
+
+     [ "c-side name",
+       "result type" (wasm.xWrap() syntax),
+       [arg types in xWrap() syntax]
+       // ^^^ this needn't strictly be an array: it can be subsequent
+       // elements instead: [x,y,z] is equivalent to x,y,z
+     ]
+
+     Note that support for the API-specific data types in the
+     result/argument type strings gets plugged in at a later phase in
+     the API initialization process.
+  */
+  wasm.bindingSignatures = [
+    // Please keep these sorted by function name!
+    ["sqlite3_aggregate_context","void*", "sqlite3_context*", "int"],
+    /* sqlite3_auto_extension() has a hand-written binding. */
+    /* sqlite3_bind_blob() and sqlite3_bind_text() have hand-written
+       bindings to permit more flexible inputs. */
+    ["sqlite3_bind_double","int", "sqlite3_stmt*", "int", "f64"],
+    ["sqlite3_bind_int","int", "sqlite3_stmt*", "int", "int"],
+    ["sqlite3_bind_null",undefined, "sqlite3_stmt*", "int"],
+    ["sqlite3_bind_parameter_count", "int", "sqlite3_stmt*"],
+    ["sqlite3_bind_parameter_index","int", "sqlite3_stmt*", "string"],
+    ["sqlite3_bind_parameter_name", "string", "sqlite3_stmt*", "int"],
+    ["sqlite3_bind_pointer", "int",
+     "sqlite3_stmt*", "int", "*", "string:static", "*"],
+    ["sqlite3_busy_handler","int", [
+      "sqlite3*",
+      new wasm.xWrap.FuncPtrAdapter({
+        signature: 'i(pi)',
+        contextKey: (argv,argIndex)=>argv[0/* sqlite3* */]
+      }),
+      "*"
+    ]],
+    ["sqlite3_busy_timeout","int", "sqlite3*", "int"],
+    /* sqlite3_cancel_auto_extension() has a hand-written binding. */
+    /* sqlite3_close_v2() is implemented by hand to perform some
+       extra work. */
+    ["sqlite3_changes", "int", "sqlite3*"],
+    ["sqlite3_clear_bindings","int", "sqlite3_stmt*"],
+    ["sqlite3_collation_needed", "int", "sqlite3*", "*", "*"/*=>v(ppis)*/],
+    ["sqlite3_column_blob","*", "sqlite3_stmt*", "int"],
+    ["sqlite3_column_bytes","int", "sqlite3_stmt*", "int"],
+    ["sqlite3_column_count", "int", "sqlite3_stmt*"],
+    ["sqlite3_column_decltype", "string", "sqlite3_stmt*", "int"],
+    ["sqlite3_column_double","f64", "sqlite3_stmt*", "int"],
+    ["sqlite3_column_int","int", "sqlite3_stmt*", "int"],
+    ["sqlite3_column_name","string", "sqlite3_stmt*", "int"],
+    ["sqlite3_column_text","string", "sqlite3_stmt*", "int"],
+    ["sqlite3_column_type","int", "sqlite3_stmt*", "int"],
+    ["sqlite3_column_value","sqlite3_value*", "sqlite3_stmt*", "int"],
+    ["sqlite3_commit_hook", "void*", [
+      "sqlite3*",
+      new wasm.xWrap.FuncPtrAdapter({
+        name: 'sqlite3_commit_hook',
+        signature: 'i(p)',
+        contextKey: (argv)=>argv[0/* sqlite3* */]
+      }),
+      '*'
+    ]],
+    ["sqlite3_compileoption_get", "string", "int"],
+    ["sqlite3_compileoption_used", "int", "string"],
+    ["sqlite3_complete", "int", "string:flexible"],
+    ["sqlite3_context_db_handle", "sqlite3*", "sqlite3_context*"],
+    /* sqlite3_create_collation() and sqlite3_create_collation_v2()
+       use hand-written bindings to simplify passing of the callback
+       function. */
+    /* sqlite3_create_function(), sqlite3_create_function_v2(), and
+       sqlite3_create_window_function() use hand-written bindings to
+       simplify handling of their function-type arguments. */
+    ["sqlite3_data_count", "int", "sqlite3_stmt*"],
+    ["sqlite3_db_filename", "string", "sqlite3*", "string"],
+    ["sqlite3_db_handle", "sqlite3*", "sqlite3_stmt*"],
+    ["sqlite3_db_name", "string", "sqlite3*", "int"],
+    ["sqlite3_db_readonly", "int", "sqlite3*", "string"],
+    ["sqlite3_db_status", "int", "sqlite3*", "int", "*", "*", "int"],
+    ["sqlite3_errcode", "int", "sqlite3*"],
+    ["sqlite3_errmsg", "string", "sqlite3*"],
+    ["sqlite3_error_offset", "int", "sqlite3*"],
+    ["sqlite3_errstr", "string", "int"],
+    ["sqlite3_exec", "int", [
+      "sqlite3*", "string:flexible",
+      new wasm.xWrap.FuncPtrAdapter({
+        signature: 'i(pipp)',
+        bindScope: 'transient',
+        callProxy: (callback)=>{
+          let aNames;
+          return (pVoid, nCols, pColVals, pColNames)=>{
+            try {
+              const aVals = wasm.cArgvToJs(nCols, pColVals);
+              if(!aNames) aNames = wasm.cArgvToJs(nCols, pColNames);
+              return callback(aVals, aNames) | 0;
+            }catch(e){
+              /* If we set the db error state here, the higher-level
+                 exec() call replaces it with its own, so we have no way
+                 of reporting the exception message except the console. We
+                 must not propagate exceptions through the C API. Though
+                 we make an effort to report OOM here, sqlite3_exec()
+                 translates that into SQLITE_ABORT as well. */
+              return e.resultCode || capi.SQLITE_ERROR;
+            }
+          }
+        }
+      }),
+      "*", "**"
+    ]],
+    ["sqlite3_expanded_sql", "string", "sqlite3_stmt*"],
+    ["sqlite3_extended_errcode", "int", "sqlite3*"],
+    ["sqlite3_extended_result_codes", "int", "sqlite3*", "int"],
+    ["sqlite3_file_control", "int", "sqlite3*", "string", "int", "*"],
+    ["sqlite3_finalize", "int", "sqlite3_stmt*"],
+    ["sqlite3_free", undefined,"*"],
+    ["sqlite3_get_autocommit", "int", "sqlite3*"],
+    ["sqlite3_get_auxdata", "*", "sqlite3_context*", "int"],
+    ["sqlite3_initialize", undefined],
+    ["sqlite3_interrupt", undefined, "sqlite3*"],
+    ["sqlite3_is_interrupted", "int", "sqlite3*"],
+    ["sqlite3_keyword_count", "int"],
+    ["sqlite3_keyword_name", "int", ["int", "**", "*"]],
+    ["sqlite3_keyword_check", "int", ["string", "int"]],
+    ["sqlite3_libversion", "string"],
+    ["sqlite3_libversion_number", "int"],
+    ["sqlite3_limit", "int", ["sqlite3*", "int", "int"]],
+    ["sqlite3_malloc", "*","int"],
+    ["sqlite3_open", "int", "string", "*"],
+    ["sqlite3_open_v2", "int", "string", "*", "int", "string"],
+    /* sqlite3_prepare_v2() and sqlite3_prepare_v3() are handled
+       separately due to us requiring two different sets of semantics
+       for those, depending on how their SQL argument is provided. */
+    /* sqlite3_randomness() uses a hand-written wrapper to extend
+       the range of supported argument types. */
+    ["sqlite3_realloc", "*","*","int"],
+    ["sqlite3_reset", "int", "sqlite3_stmt*"],
+    /* sqlite3_reset_auto_extension() has a hand-written binding. */
+    ["sqlite3_result_blob", undefined, "sqlite3_context*", "*", "int", "*"],
+    ["sqlite3_result_double", undefined, "sqlite3_context*", "f64"],
+    ["sqlite3_result_error", undefined, "sqlite3_context*", "string", "int"],
+    ["sqlite3_result_error_code", undefined, "sqlite3_context*", "int"],
+    ["sqlite3_result_error_nomem", undefined, "sqlite3_context*"],
+    ["sqlite3_result_error_toobig", undefined, "sqlite3_context*"],
+    ["sqlite3_result_int", undefined, "sqlite3_context*", "int"],
+    ["sqlite3_result_null", undefined, "sqlite3_context*"],
+    ["sqlite3_result_pointer", undefined,
+     "sqlite3_context*", "*", "string:static", "*"],
+    ["sqlite3_result_subtype", undefined, "sqlite3_value*", "int"],
+    ["sqlite3_result_text", undefined, "sqlite3_context*", "string", "int", "*"],
+    ["sqlite3_result_zeroblob", undefined, "sqlite3_context*", "int"],
+    ["sqlite3_rollback_hook", "void*", [
+      "sqlite3*",
+      new wasm.xWrap.FuncPtrAdapter({
+        name: 'sqlite3_rollback_hook',
+        signature: 'v(p)',
+        contextKey: (argv)=>argv[0/* sqlite3* */]
+      }),
+      '*'
+    ]],
+    ["sqlite3_set_auxdata", undefined, [
+      "sqlite3_context*", "int", "*",
+      new wasm.xWrap.FuncPtrAdapter({
+        name: 'xDestroyAuxData',
+        signature: 'v(*)',
+        contextKey: (argv, argIndex)=>argv[0/* sqlite3_context* */]
+      })
+    ]],
+    ["sqlite3_shutdown", undefined],
+    ["sqlite3_sourceid", "string"],
+    ["sqlite3_sql", "string", "sqlite3_stmt*"],
+    ["sqlite3_status", "int", "int", "*", "*", "int"],
+    ["sqlite3_step", "int", "sqlite3_stmt*"],
+    ["sqlite3_stmt_busy", "int", "sqlite3_stmt*"],
+    ["sqlite3_stmt_readonly", "int", "sqlite3_stmt*"],
+    ["sqlite3_stmt_status", "int", "sqlite3_stmt*", "int", "int"],
+    ["sqlite3_strglob", "int", "string","string"],
+    ["sqlite3_stricmp", "int", "string", "string"],
+    ["sqlite3_strlike", "int", "string", "string","int"],
+    ["sqlite3_strnicmp", "int", "string", "string", "int"],
+    ["sqlite3_table_column_metadata", "int",
+     "sqlite3*", "string", "string", "string",
+     "**", "**", "*", "*", "*"],
+    ["sqlite3_total_changes", "int", "sqlite3*"],
+    ["sqlite3_trace_v2", "int", [
+      "sqlite3*", "int",
+      new wasm.xWrap.FuncPtrAdapter({
+        name: 'sqlite3_trace_v2::callback',
+        signature: 'i(ippp)',
+        contextKey: (argv,argIndex)=>argv[0/* sqlite3* */]
+      }),
+      "*"
+    ]],
+    ["sqlite3_txn_state", "int", ["sqlite3*","string"]],
+    /* Note that sqlite3_uri_...() have very specific requirements for
+       their first C-string arguments, so we cannot perform any value
+       conversion on those. */
+    ["sqlite3_uri_boolean", "int", "sqlite3_filename", "string", "int"],
+    ["sqlite3_uri_key", "string", "sqlite3_filename", "int"],
+    ["sqlite3_uri_parameter", "string", "sqlite3_filename", "string"],
+    ["sqlite3_user_data","void*", "sqlite3_context*"],
+    ["sqlite3_value_blob", "*", "sqlite3_value*"],
+    ["sqlite3_value_bytes","int", "sqlite3_value*"],
+    ["sqlite3_value_double","f64", "sqlite3_value*"],
+    ["sqlite3_value_dup", "sqlite3_value*", "sqlite3_value*"],
+    ["sqlite3_value_free", undefined, "sqlite3_value*"],
+    ["sqlite3_value_frombind", "int", "sqlite3_value*"],
+    ["sqlite3_value_int","int", "sqlite3_value*"],
+    ["sqlite3_value_nochange", "int", "sqlite3_value*"],
+    ["sqlite3_value_numeric_type", "int", "sqlite3_value*"],
+    ["sqlite3_value_pointer", "*", "sqlite3_value*", "string:static"],
+    ["sqlite3_value_subtype", "int", "sqlite3_value*"],
+    ["sqlite3_value_text", "string", "sqlite3_value*"],
+    ["sqlite3_value_type", "int", "sqlite3_value*"],
+    ["sqlite3_vfs_find", "*", "string"],
+    ["sqlite3_vfs_register", "int", "sqlite3_vfs*", "int"],
+    ["sqlite3_vfs_unregister", "int", "sqlite3_vfs*"]
+  ]/*wasm.bindingSignatures*/;
+
+  if( !!wasm.exports.sqlite3_progress_handler ){
+    wasm.bindingSignatures.push(
+      ["sqlite3_progress_handler", undefined, [
+        "sqlite3*", "int", new wasm.xWrap.FuncPtrAdapter({
+          name: 'xProgressHandler',
+          signature: 'i(p)',
+          bindScope: 'context',
+          contextKey: (argv,argIndex)=>argv[0/* sqlite3* */]
+        }), "*"
+      ]]
+    );
+  }
+
+  if( !!wasm.exports.sqlite3_stmt_explain ){
+    wasm.bindingSignatures.push(
+      ["sqlite3_stmt_explain", "int", "sqlite3_stmt*", "int"],
+      ["sqlite3_stmt_isexplain", "int", "sqlite3_stmt*"]
+    );
+  }
+
+  if( !!wasm.exports.sqlite3_set_authorizer ){
+    wasm.bindingSignatures.push(
+      ["sqlite3_set_authorizer", "int", [
+        "sqlite3*",
+        new wasm.xWrap.FuncPtrAdapter({
+          name: "sqlite3_set_authorizer::xAuth",
+          signature: "i(pi"+"ssss)",
+          contextKey: (argv, argIndex)=>argv[0/*(sqlite3*)*/],
+          callProxy: (callback)=>{
+            return (pV, iCode, s0, s1, s2, s3)=>{
+              try{
+                s0 = s0 && wasm.cstrToJs(s0); s1 = s1 && wasm.cstrToJs(s1);
+                s2 = s2 && wasm.cstrToJs(s2); s3 = s3 && wasm.cstrToJs(s3);
+                return callback(pV, iCode, s0, s1, s2, s3) || 0;
+              }catch(e){
+                return e.resultCode || capi.SQLITE_ERROR;
+              }
+            }
+          }
+        }),
+        "*"/*pUserData*/
+      ]]
+    );
+  }/* sqlite3_set_authorizer() */
+
+  if(false && wasm.compileOptionUsed('SQLITE_ENABLE_NORMALIZE')){
+    /* ^^^ "the problem" is that this is an optional feature and the
+       build-time function-export list does not currently take
+       optional features into account. */
+    wasm.bindingSignatures.push(["sqlite3_normalized_sql", "string", "sqlite3_stmt*"]);
+  }
+
+//#if enable-see
+  if(wasm.exports.sqlite3_key_v2 instanceof Function){
+    /**
+       This code is capable of using an SEE build but note that an SEE
+       WASM build is generally incompatible with SEE's license
+       conditions. It is permitted for use internally in organizations
+       which have licensed SEE, but not for public sites because
+       exposing an SEE build of sqlite3.wasm effectively provides all
+       clients with a working copy of the commercial SEE code.
+    */
+    wasm.bindingSignatures.push(
+      ["sqlite3_key", "int", "sqlite3*", "string", "int"],
+      ["sqlite3_key_v2","int","sqlite3*","string","*","int"],
+      ["sqlite3_rekey", "int", "sqlite3*", "string", "int"],
+      ["sqlite3_rekey_v2", "int", "sqlite3*", "string", "*", "int"],
+      ["sqlite3_activate_see", undefined, "string"]
+    );
+  }
+//#endif enable-see
+
+  /**
+     Functions which require BigInt (int64) support are separated from
+     the others because we need to conditionally bind them or apply
+     dummy impls, depending on the capabilities of the environment.
+     (That said: we never actually build without BigInt support,
+     and such builds are untested.)
+
+     Note that not all of these functions directly require int64
+     but are only for use with APIs which require int64. For example,
+     the vtab-related functions.
+  */
+  wasm.bindingSignatures.int64 = [
+    ["sqlite3_bind_int64","int", ["sqlite3_stmt*", "int", "i64"]],
+    ["sqlite3_changes64","i64", ["sqlite3*"]],
+    ["sqlite3_column_int64","i64", ["sqlite3_stmt*", "int"]],
+    ["sqlite3_deserialize", "int", "sqlite3*", "string", "*", "i64", "i64", "int"]
+    /* Careful! Short version: de/serialize() are problematic because they
+       might use a different allocator than the user for managing the
+       deserialized block. de/serialize() are ONLY safe to use with
+       sqlite3_malloc(), sqlite3_free(), and its 64-bit variants. Because
+       of this, the canonical builds of sqlite3.wasm/js guarantee that
+       sqlite3.wasm.alloc() and friends use those allocators. Custom builds
+       may not guarantee that, however. */,
+    ["sqlite3_last_insert_rowid", "i64", ["sqlite3*"]],
+    ["sqlite3_malloc64", "*","i64"],
+    ["sqlite3_msize", "i64", "*"],
+    ["sqlite3_overload_function", "int", ["sqlite3*","string","int"]],
+    ["sqlite3_realloc64", "*","*", "i64"],
+    ["sqlite3_result_int64", undefined, "*", "i64"],
+    ["sqlite3_result_zeroblob64", "int", "*", "i64"],
+    ["sqlite3_serialize","*", "sqlite3*", "string", "*", "int"],
+    ["sqlite3_set_last_insert_rowid", undefined, ["sqlite3*", "i64"]],
+    ["sqlite3_status64", "int", "int", "*", "*", "int"],
+    ["sqlite3_total_changes64", "i64", ["sqlite3*"]],
+    ["sqlite3_update_hook", "*", [
+      "sqlite3*",
+      new wasm.xWrap.FuncPtrAdapter({
+        name: 'sqlite3_update_hook',
+        signature: "v(iippj)",
+        contextKey: (argv)=>argv[0/* sqlite3* */],
+        callProxy: (callback)=>{
+          return (p,op,z0,z1,rowid)=>{
+            callback(p, op, wasm.cstrToJs(z0), wasm.cstrToJs(z1), rowid);
+          };
+        }
+      }),
+      "*"
+    ]],
+    ["sqlite3_uri_int64", "i64", ["sqlite3_filename", "string", "i64"]],
+    ["sqlite3_value_int64","i64", "sqlite3_value*"]
+  ];
+
+  if( wasm.bigIntEnabled && !!wasm.exports.sqlite3_declare_vtab ){
+    wasm.bindingSignatures.int64.push(
+      ["sqlite3_create_module", "int",
+       ["sqlite3*","string","sqlite3_module*","*"]],
+      ["sqlite3_create_module_v2", "int",
+       ["sqlite3*","string","sqlite3_module*","*","*"]],
+      ["sqlite3_declare_vtab", "int", ["sqlite3*", "string:flexible"]],
+      ["sqlite3_drop_modules", "int", ["sqlite3*", "**"]],
+      ["sqlite3_vtab_collation","string","sqlite3_index_info*","int"],
+      ["sqlite3_vtab_distinct","int", "sqlite3_index_info*"],
+      ["sqlite3_vtab_in","int", "sqlite3_index_info*", "int", "int"],
+      ["sqlite3_vtab_in_first", "int", "sqlite3_value*", "**"],
+      ["sqlite3_vtab_in_next", "int", "sqlite3_value*", "**"],
+      /*["sqlite3_vtab_config" is variadic and requires a hand-written
+        proxy.] */
+      ["sqlite3_vtab_nochange","int", "sqlite3_context*"],
+      ["sqlite3_vtab_on_conflict","int", "sqlite3*"],
+      ["sqlite3_vtab_rhs_value","int", "sqlite3_index_info*", "int", "**"]
+    );
+  }/* virtual table APIs */
+
+  if(wasm.bigIntEnabled && !!wasm.exports.sqlite3_preupdate_hook){
+    wasm.bindingSignatures.int64.push(
+      ["sqlite3_preupdate_blobwrite", "int", "sqlite3*"],
+      ["sqlite3_preupdate_count", "int", "sqlite3*"],
+      ["sqlite3_preupdate_depth", "int", "sqlite3*"],
+      ["sqlite3_preupdate_hook", "*", [
+        "sqlite3*",
+        new wasm.xWrap.FuncPtrAdapter({
+          name: 'sqlite3_preupdate_hook',
+          signature: "v(ppippjj)",
+          contextKey: (argv)=>argv[0/* sqlite3* */],
+          callProxy: (callback)=>{
+            return (p,db,op,zDb,zTbl,iKey1,iKey2)=>{
+              callback(p, db, op, wasm.cstrToJs(zDb), wasm.cstrToJs(zTbl),
+                       iKey1, iKey2);
+            };
+          }
+        }),
+        "*"
+      ]],
+      ["sqlite3_preupdate_new", "int", ["sqlite3*", "int", "**"]],
+      ["sqlite3_preupdate_old", "int", ["sqlite3*", "int", "**"]]
+    );
+  } /* preupdate API */
+
+  // Add session/changeset APIs...
+  if(wasm.bigIntEnabled
+     && !!wasm.exports.sqlite3changegroup_add
+     && !!wasm.exports.sqlite3session_create
+     && !!wasm.exports.sqlite3_preupdate_hook /* required by the session API */){
+    /**
+       FuncPtrAdapter options for session-related callbacks with the
+       native signature "i(ps)". This proxy converts the 2nd argument
+       from a C string to a JS string before passing the arguments on
+       to the client-provided JS callback.
+    */
+    const __ipsProxy = {
+      signature: 'i(ps)',
+      callProxy:(callback)=>{
+        return (p,s)=>{
+          try{return callback(p, wasm.cstrToJs(s)) | 0}
+          catch(e){return e.resultCode || capi.SQLITE_ERROR}
+        }
+      }
+    };
+
+    wasm.bindingSignatures.int64.push(...[
+      ['sqlite3changegroup_add', 'int', ['sqlite3_changegroup*', 'int', 'void*']],
+      ['sqlite3changegroup_add_strm', 'int', [
+        'sqlite3_changegroup*',
+        new wasm.xWrap.FuncPtrAdapter({
+          name: 'xInput', signature: 'i(ppp)', bindScope: 'transient'
+        }),
+        'void*'
+      ]],
+      ['sqlite3changegroup_delete', undefined, ['sqlite3_changegroup*']],
+      ['sqlite3changegroup_new', 'int', ['**']],
+      ['sqlite3changegroup_output', 'int', ['sqlite3_changegroup*', 'int*', '**']],
+      ['sqlite3changegroup_output_strm', 'int', [
+        'sqlite3_changegroup*',
+        new wasm.xWrap.FuncPtrAdapter({
+          name: 'xOutput', signature: 'i(ppi)', bindScope: 'transient'
+        }),
+        'void*'
+      ]],
+      ['sqlite3changeset_apply', 'int', [
+        'sqlite3*', 'int', 'void*',
+        new wasm.xWrap.FuncPtrAdapter({
+          name: 'xFilter', bindScope: 'transient', ...__ipsProxy
+        }),
+        new wasm.xWrap.FuncPtrAdapter({
+          name: 'xConflict', signature: 'i(pip)', bindScope: 'transient'
+        }),
+        'void*'
+      ]],
+      ['sqlite3changeset_apply_strm', 'int', [
+        'sqlite3*',
+        new wasm.xWrap.FuncPtrAdapter({
+          name: 'xInput', signature: 'i(ppp)', bindScope: 'transient'
+        }),
+        'void*',
+        new wasm.xWrap.FuncPtrAdapter({
+          name: 'xFilter', bindScope: 'transient', ...__ipsProxy
+        }),
+        new wasm.xWrap.FuncPtrAdapter({
+          name: 'xConflict', signature: 'i(pip)', bindScope: 'transient'
+        }),
+        'void*'
+      ]],
+      ['sqlite3changeset_apply_v2', 'int', [
+        'sqlite3*', 'int', 'void*',
+        new wasm.xWrap.FuncPtrAdapter({
+          name: 'xFilter', bindScope: 'transient', ...__ipsProxy
+        }),
+        new wasm.xWrap.FuncPtrAdapter({
+          name: 'xConflict', signature: 'i(pip)', bindScope: 'transient'
+        }),
+        'void*', '**', 'int*', 'int'
+
+      ]],
+      ['sqlite3changeset_apply_v2_strm', 'int', [
+        'sqlite3*',
+        new wasm.xWrap.FuncPtrAdapter({
+          name: 'xInput', signature: 'i(ppp)', bindScope: 'transient'
+        }),
+        'void*',
+        new wasm.xWrap.FuncPtrAdapter({
+          name: 'xFilter', bindScope: 'transient', ...__ipsProxy
+        }),
+        new wasm.xWrap.FuncPtrAdapter({
+          name: 'xConflict', signature: 'i(pip)', bindScope: 'transient'
+        }),
+        'void*', '**', 'int*', 'int'
+      ]],
+      ['sqlite3changeset_concat', 'int', ['int','void*', 'int', 'void*', 'int*', '**']],
+      ['sqlite3changeset_concat_strm', 'int', [
+        new wasm.xWrap.FuncPtrAdapter({
+          name: 'xInputA', signature: 'i(ppp)', bindScope: 'transient'
+        }),
+        'void*',
+        new wasm.xWrap.FuncPtrAdapter({
+          name: 'xInputB', signature: 'i(ppp)', bindScope: 'transient'
+        }),
+        'void*',
+        new wasm.xWrap.FuncPtrAdapter({
+          name: 'xOutput', signature: 'i(ppi)', bindScope: 'transient'
+        }),
+        'void*'
+      ]],
+      ['sqlite3changeset_conflict', 'int', ['sqlite3_changeset_iter*', 'int', '**']],
+      ['sqlite3changeset_finalize', 'int', ['sqlite3_changeset_iter*']],
+      ['sqlite3changeset_fk_conflicts', 'int', ['sqlite3_changeset_iter*', 'int*']],
+      ['sqlite3changeset_invert', 'int', ['int', 'void*', 'int*', '**']],
+      ['sqlite3changeset_invert_strm', 'int', [
+        new wasm.xWrap.FuncPtrAdapter({
+          name: 'xInput', signature: 'i(ppp)', bindScope: 'transient'
+        }),
+        'void*',
+        new wasm.xWrap.FuncPtrAdapter({
+          name: 'xOutput', signature: 'i(ppi)', bindScope: 'transient'
+        }),
+        'void*'
+      ]],
+      ['sqlite3changeset_new', 'int', ['sqlite3_changeset_iter*', 'int', '**']],
+      ['sqlite3changeset_next', 'int', ['sqlite3_changeset_iter*']],
+      ['sqlite3changeset_old', 'int', ['sqlite3_changeset_iter*', 'int', '**']],
+      ['sqlite3changeset_op', 'int', [
+        'sqlite3_changeset_iter*', '**', 'int*', 'int*','int*'
+      ]],
+      ['sqlite3changeset_pk', 'int', ['sqlite3_changeset_iter*', '**', 'int*']],
+      ['sqlite3changeset_start', 'int', ['**', 'int', '*']],
+      ['sqlite3changeset_start_strm', 'int', [
+        '**',
+        new wasm.xWrap.FuncPtrAdapter({
+          name: 'xInput', signature: 'i(ppp)', bindScope: 'transient'
+        }),
+        'void*'
+      ]],
+      ['sqlite3changeset_start_v2', 'int', ['**', 'int', '*', 'int']],
+      ['sqlite3changeset_start_v2_strm', 'int', [
+        '**',
+        new wasm.xWrap.FuncPtrAdapter({
+          name: 'xInput', signature: 'i(ppp)', bindScope: 'transient'
+        }),
+        'void*', 'int'
+      ]],
+      ['sqlite3session_attach', 'int', ['sqlite3_session*', 'string']],
+      ['sqlite3session_changeset', 'int', ['sqlite3_session*', 'int*', '**']],
+      ['sqlite3session_changeset_size', 'i64', ['sqlite3_session*']],
+      ['sqlite3session_changeset_strm', 'int', [
+        'sqlite3_session*',
+        new wasm.xWrap.FuncPtrAdapter({
+          name: 'xOutput', signature: 'i(ppp)', bindScope: 'transient'
+        }),
+        'void*'
+      ]],
+      ['sqlite3session_config', 'int', ['int', 'void*']],
+      ['sqlite3session_create', 'int', ['sqlite3*', 'string', '**']],
+      //sqlite3session_delete() is bound manually
+      ['sqlite3session_diff', 'int', ['sqlite3_session*', 'string', 'string', '**']],
+      ['sqlite3session_enable', 'int', ['sqlite3_session*', 'int']],
+      ['sqlite3session_indirect', 'int', ['sqlite3_session*', 'int']],
+      ['sqlite3session_isempty', 'int', ['sqlite3_session*']],
+      ['sqlite3session_memory_used', 'i64', ['sqlite3_session*']],
+      ['sqlite3session_object_config', 'int', ['sqlite3_session*', 'int', 'void*']],
+      ['sqlite3session_patchset', 'int', ['sqlite3_session*', '*', '**']],
+      ['sqlite3session_patchset_strm', 'int', [
+        'sqlite3_session*',
+        new wasm.xWrap.FuncPtrAdapter({
+          name: 'xOutput', signature: 'i(ppp)', bindScope: 'transient'
+        }),
+        'void*'
+      ]],
+      ['sqlite3session_table_filter', undefined, [
+        'sqlite3_session*',
+        new wasm.xWrap.FuncPtrAdapter({
+          name: 'xFilter', ...__ipsProxy,
+          contextKey: (argv,argIndex)=>argv[0/* (sqlite3_session*) */]
+        }),
+        '*'
+      ]]
+    ]);
+  }/*session/changeset APIs*/
+
+  /**
+     Functions which are intended solely for API-internal use by the
+     WASM components, not client code. These get installed into
+     sqlite3.util. Some of them get exposed to clients via variants
+     in sqlite3_js_...().
+
+     2024-01-11: these were renamed, with two underscores in the
+     prefix, to ensure that clients do not accidentally depend on
+     them.  They have always been documented as internal-use-only, so
+     no clients "should" be depending on the old names.
+  */
+  wasm.bindingSignatures.wasmInternal = [
+    ["sqlite3__wasm_db_reset", "int", "sqlite3*"],
+    ["sqlite3__wasm_db_vfs", "sqlite3_vfs*", "sqlite3*","string"],
+    [/* DO NOT USE. This is deprecated since 2023-08-11 because it can
+        trigger assert() in debug builds when used with file sizes
+        which are not sizes to a multiple of a valid db page size. */
+      "sqlite3__wasm_vfs_create_file", "int", "sqlite3_vfs*","string","*", "int"
+    ],
+    ["sqlite3__wasm_posix_create_file", "int", "string","*", "int"],
+    ["sqlite3__wasm_vfs_unlink", "int", "sqlite3_vfs*","string"],
+    ["sqlite3__wasm_qfmt_token","string:dealloc", "string","int"]
+  ];
+
+  /**
+     Install JS<->C struct bindings for the non-opaque struct types we
+     need... */
+  sqlite3.StructBinder = globalThis.Jaccwabyt({
+    heap: 0 ? wasm.memory : wasm.heap8u,
+    alloc: wasm.alloc,
+    dealloc: wasm.dealloc,
+    bigIntEnabled: wasm.bigIntEnabled,
+    memberPrefix: /* Never change this: this prefix is baked into any
+                     amount of code and client-facing docs. */ '$'
+  });
+  delete globalThis.Jaccwabyt;
+
+  {// wasm.xWrap() bindings...
+
+    /* Convert Arrays and certain TypedArrays to strings for
+       'string:flexible'-type arguments */
+    const __xString = wasm.xWrap.argAdapter('string');
+    wasm.xWrap.argAdapter(
+      'string:flexible', (v)=>__xString(util.flexibleString(v))
+    );
+
+    /**
+       The 'string:static' argument adapter treats its argument as
+       either...
+
+       - WASM pointer: assumed to be a long-lived C-string which gets
+         returned as-is.
+
+       - Anything else: gets coerced to a JS string for use as a map
+         key. If a matching entry is found (as described next), it is
+         returned, else wasm.allocCString() is used to create a a new
+         string, map its pointer to (''+v) for the remainder of the
+         application's life, and returns that pointer value for this
+         call and all future calls which are passed a
+         string-equivalent argument.
+
+       Use case: sqlite3_bind_pointer() and sqlite3_result_pointer()
+       call for "a static string and preferably a string
+       literal." This converter is used to ensure that the string
+       value seen by those functions is long-lived and behaves as they
+       need it to.
+    */
+    wasm.xWrap.argAdapter(
+      'string:static',
+      function(v){
+        if(wasm.isPtr(v)) return v;
+        v = ''+v;
+        let rc = this[v];
+        return rc || (this[v] = wasm.allocCString(v));
+      }.bind(Object.create(null))
+    );
+
+    /**
+       Add some descriptive xWrap() aliases for '*' intended to (A)
+       initially improve readability/correctness of
+       wasm.bindingSignatures and (B) provide automatic conversion
+       from higher-level representations, e.g. capi.sqlite3_vfs to
+       `sqlite3_vfs*` via capi.sqlite3_vfs.pointer.
+    */
+    const __xArgPtr = wasm.xWrap.argAdapter('*');
+    const nilType = function(){
+      /*a class which no value can ever be an instance of*/
+    };
+    wasm.xWrap.argAdapter('sqlite3_filename', __xArgPtr)
+    ('sqlite3_context*', __xArgPtr)
+    ('sqlite3_value*', __xArgPtr)
+    ('void*', __xArgPtr)
+    ('sqlite3_changegroup*', __xArgPtr)
+    ('sqlite3_changeset_iter*', __xArgPtr)
+    ('sqlite3_session*', __xArgPtr)
+    ('sqlite3_stmt*', (v)=>
+      __xArgPtr((v instanceof (sqlite3?.oo1?.Stmt || nilType))
+           ? v.pointer : v))
+    ('sqlite3*', (v)=>
+      __xArgPtr((v instanceof (sqlite3?.oo1?.DB || nilType))
+           ? v.pointer : v))
+    /**
+       `sqlite3_vfs*`:
+
+       - v is-a string: use the result of sqlite3_vfs_find(v) but
+         throw if it returns 0.
+       - v is-a capi.sqlite3_vfs: use v.pointer.
+       - Else return the same as the `'*'` argument conversion.
+    */
+    ('sqlite3_vfs*', (v)=>{
+      if('string'===typeof v){
+        /* A NULL sqlite3_vfs pointer will be treated as the default
+           VFS in many contexts. We specifically do not want that
+           behavior here. */
+        return capi.sqlite3_vfs_find(v)
+          || sqlite3.SQLite3Error.toss(
+            capi.SQLITE_NOTFOUND,
+            "Unknown sqlite3_vfs name:", v
+          );
+      }
+      return __xArgPtr((v instanceof (capi.sqlite3_vfs || nilType))
+                       ? v.pointer : v);
+    });
+    if( wasm.exports.sqlite3_declare_vtab ){
+      wasm.xWrap.argAdapter('sqlite3_index_info*', (v)=>
+        __xArgPtr((v instanceof (capi.sqlite3_index_info || nilType))
+                  ? v.pointer : v))
+      ('sqlite3_module*', (v)=>
+        __xArgPtr((v instanceof (capi.sqlite3_module || nilType))
+                  ? v.pointer : v)
+      );
+    }
+
+    const __xRcPtr = wasm.xWrap.resultAdapter('*');
+    wasm.xWrap.resultAdapter('sqlite3*', __xRcPtr)
+    ('sqlite3_context*', __xRcPtr)
+    ('sqlite3_stmt*', __xRcPtr)
+    ('sqlite3_value*', __xRcPtr)
+    ('sqlite3_vfs*', __xRcPtr)
+    ('void*', __xRcPtr);
+
+    /**
+       Populate api object with sqlite3_...() by binding the "raw" wasm
+       exports into type-converting proxies using wasm.xWrap().
+    */
+    if(0 === wasm.exports.sqlite3_step.length){
+      /* This environment wraps exports in nullary functions, which means
+         we must disable the arg-count validation we otherwise perform
+         on the wrappers. */
+      wasm.xWrap.doArgcCheck = false;
+      sqlite3.config.warn(
+        "Disabling sqlite3.wasm.xWrap.doArgcCheck due to environmental quirks."
+      );
+    }
+    for(const e of wasm.bindingSignatures){
+      capi[e[0]] = wasm.xWrap.apply(null, e);
+    }
+    for(const e of wasm.bindingSignatures.wasmInternal){
+      util[e[0]] = wasm.xWrap.apply(null, e);
+    }
+
+    /* For C API functions which cannot work properly unless
+       wasm.bigIntEnabled is true, install a bogus impl which throws
+       if called when bigIntEnabled is false. The alternative would be
+       to elide these functions altogether, which seems likely to
+       cause more confusion. */
+    const fI64Disabled = function(fname){
+      return ()=>toss(fname+"() is unavailable due to lack",
+                      "of BigInt support in this build.");
+    };
+    for(const e of wasm.bindingSignatures.int64){
+      capi[e[0]] = wasm.bigIntEnabled
+        ? wasm.xWrap.apply(null, e)
+        : fI64Disabled(e[0]);
+    }
+
+    /* There's no need to expose bindingSignatures to clients,
+       implicitly making it part of the public interface. */
+    delete wasm.bindingSignatures;
+
+    if(wasm.exports.sqlite3__wasm_db_error){
+      const __db_err = wasm.xWrap(
+        'sqlite3__wasm_db_error', 'int', 'sqlite3*', 'int', 'string'
+      );
+      /**
+         Sets the given db's error state. Accepts:
+
+         - (sqlite3*, int code, string msg)
+         - (sqlite3*, Error e [,string msg = ''+e])
+
+         If passed a WasmAllocError, the message is ignored and the
+         result code is SQLITE_NOMEM. If passed any other Error type,
+         the result code defaults to SQLITE_ERROR unless the Error
+         object has a resultCode property, in which case that is used
+         (e.g. SQLite3Error has that). If passed a non-WasmAllocError
+         exception, the message string defaults to theError.message.
+
+         Returns the resulting code. Pass (pDb,0,0) to clear the error
+         state.
+       */
+      util.sqlite3__wasm_db_error = function(pDb, resultCode, message){
+        if(resultCode instanceof sqlite3.WasmAllocError){
+          resultCode = capi.SQLITE_NOMEM;
+          message = 0 /*avoid allocating message string*/;
+        }else if(resultCode instanceof Error){
+          message = message || ''+resultCode;
+          resultCode = (resultCode.resultCode || capi.SQLITE_ERROR);
+        }
+        return pDb ? __db_err(pDb, resultCode, message) : resultCode;
+      };
+    }else{
+      util.sqlite3__wasm_db_error = function(pDb,errCode,msg){
+        console.warn("sqlite3__wasm_db_error() is not exported.",arguments);
+        return errCode;
+      };
+    }
+  }/*xWrap() bindings*/
+
+  {/* Import C-level constants and structs... */
+    const cJson = wasm.xCall('sqlite3__wasm_enum_json');
+    if(!cJson){
+      toss("Maintenance required: increase sqlite3__wasm_enum_json()'s",
+           "static buffer size!");
+    }
+    //console.debug('wasm.ctype length =',wasm.cstrlen(cJson));
+    wasm.ctype = JSON.parse(wasm.cstrToJs(cJson));
+    // Groups of SQLITE_xyz macros...
+    const defineGroups = ['access', 'authorizer',
+                          'blobFinalizers', 'changeset',
+                          'config', 'dataTypes',
+                          'dbConfig', 'dbStatus',
+                          'encodings', 'fcntl', 'flock', 'ioCap',
+                          'limits', 'openFlags',
+                          'prepareFlags', 'resultCodes',
+                          'sqlite3Status',
+                          'stmtStatus', 'syncFlags',
+                          'trace', 'txnState', 'udfFlags',
+                          'version' ];
+    if(wasm.bigIntEnabled){
+      defineGroups.push('serialize', 'session', 'vtab');
+    }
+    for(const t of defineGroups){
+      for(const e of Object.entries(wasm.ctype[t])){
+        // ^^^ [k,v] there triggers a buggy code transformation via
+        // one of the Emscripten-driven optimizers.
+        capi[e[0]] = e[1];
+      }
+    }
+    if(!wasm.functionEntry(capi.SQLITE_WASM_DEALLOC)){
+      toss("Internal error: cannot resolve exported function",
+           "entry SQLITE_WASM_DEALLOC (=="+capi.SQLITE_WASM_DEALLOC+").");
+    }
+    const __rcMap = Object.create(null);
+    for(const t of ['resultCodes']){
+      for(const e of Object.entries(wasm.ctype[t])){
+        __rcMap[e[1]] = e[0];
+      }
+    }
+    /**
+       For the given integer, returns the SQLITE_xxx result code as a
+       string, or undefined if no such mapping is found.
+    */
+    capi.sqlite3_js_rc_str = (rc)=>__rcMap[rc];
+    /* Bind all registered C-side structs... */
+    const notThese = Object.assign(Object.create(null),{
+      // For each struct to NOT register, map its name to true:
+      WasmTestStruct: true,
+      /* We unregister the kvvfs VFS from Worker threads below. */
+      sqlite3_kvvfs_methods: !util.isUIThread(),
+      /* sqlite3_index_info and friends require int64: */
+      sqlite3_index_info: !wasm.bigIntEnabled,
+      sqlite3_index_constraint: !wasm.bigIntEnabled,
+      sqlite3_index_orderby: !wasm.bigIntEnabled,
+      sqlite3_index_constraint_usage: !wasm.bigIntEnabled
+    });
+    for(const s of wasm.ctype.structs){
+      if(!notThese[s.name]){
+        capi[s.name] = sqlite3.StructBinder(s);
+      }
+    }
+    if(capi.sqlite3_index_info){
+      /* Move these inner structs into sqlite3_index_info.  Binding
+      ** them to WASM requires that we create global-scope structs to
+      ** model them with, but those are no longer needed after we've
+      ** passed them to StructBinder. */
+      for(const k of ['sqlite3_index_constraint',
+                      'sqlite3_index_orderby',
+                      'sqlite3_index_constraint_usage']){
+        capi.sqlite3_index_info[k] = capi[k];
+        delete capi[k];
+      }
+      capi.sqlite3_vtab_config = wasm.xWrap(
+        'sqlite3__wasm_vtab_config','int',[
+          'sqlite3*', 'int', 'int']
+      );
+    }/* end vtab-related setup */
+  }/*end C constant and struct imports*/
+
+  /**
+     Internal helper to assist in validating call argument counts in
+     the hand-written sqlite3_xyz() wrappers. We do this only for
+     consistency with non-special-case wrappings.
+  */
+  const __dbArgcMismatch = (pDb,f,n)=>{
+    return util.sqlite3__wasm_db_error(pDb, capi.SQLITE_MISUSE,
+                                      f+"() requires "+n+" argument"+
+                                      (1===n?"":'s')+".");
+  };
+
+  /** Code duplication reducer for functions which take an encoding
+      argument and require SQLITE_UTF8.  Sets the db error code to
+      SQLITE_FORMAT, installs a descriptive error message,
+      and returns SQLITE_FORMAT. */
+  const __errEncoding = (pDb)=>{
+    return util.sqlite3__wasm_db_error(
+      pDb, capi.SQLITE_FORMAT, "SQLITE_UTF8 is the only supported encoding."
+    );
+  };
+
+  /**
+     __dbCleanupMap is infrastructure for recording registration of
+     UDFs and collations so that sqlite3_close_v2() can clean up any
+     automated JS-to-WASM function conversions installed by those.
+  */
+  const __argPDb = (pDb)=>wasm.xWrap.argAdapter('sqlite3*')(pDb);
+  const __argStr = (str)=>wasm.isPtr(str) ? wasm.cstrToJs(str) : str;
+  const __dbCleanupMap = function(
+    pDb, mode/*0=remove, >0=create if needed, <0=do not create if missing*/
+  ){
+    pDb = __argPDb(pDb);
+    let m = this.dbMap.get(pDb);
+    if(!mode){
+      this.dbMap.delete(pDb);
+      return m;
+    }else if(!m && mode>0){
+      this.dbMap.set(pDb, (m = Object.create(null)));
+    }
+    return m;
+  }.bind(Object.assign(Object.create(null),{
+    dbMap: new Map
+  }));
+
+  __dbCleanupMap.addCollation = function(pDb, name){
+    const m = __dbCleanupMap(pDb, 1);
+    if(!m.collation) m.collation = new Set;
+    m.collation.add(__argStr(name).toLowerCase());
+  };
+
+  __dbCleanupMap._addUDF = function(pDb, name, arity, map){
+    /* Map UDF name to a Set of arity values */
+    name = __argStr(name).toLowerCase();
+    let u = map.get(name);
+    if(!u) map.set(name, (u = new Set));
+    u.add((arity<0) ? -1 : arity);
+  };
+
+  __dbCleanupMap.addFunction = function(pDb, name, arity){
+    const m = __dbCleanupMap(pDb, 1);
+    if(!m.udf) m.udf = new Map;
+    this._addUDF(pDb, name, arity, m.udf);
+  };
+
+  if( wasm.exports.sqlite3_create_window_function ){
+    __dbCleanupMap.addWindowFunc = function(pDb, name, arity){
+      const m = __dbCleanupMap(pDb, 1);
+      if(!m.wudf) m.wudf = new Map;
+      this._addUDF(pDb, name, arity, m.wudf);
+    };
+  }
+
+  /**
+     Intended to be called _only_ from sqlite3_close_v2(),
+     passed its non-0 db argument.
+
+     This function frees up certain automatically-installed WASM
+     function bindings which were installed on behalf of the given db,
+     as those may otherwise leak.
+
+     Notable caveat: this is only ever run via
+     sqlite3.capi.sqlite3_close_v2(). If a client, for whatever
+     reason, uses sqlite3.wasm.exports.sqlite3_close_v2() (the
+     function directly exported from WASM), this cleanup will not
+     happen.
+
+     This is not a silver bullet for avoiding automation-related
+     leaks but represents "an honest effort."
+
+     The issue being addressed here is covered at:
+
+     https://sqlite.org/wasm/doc/trunk/api-c-style.md#convert-func-ptr
+  */
+  __dbCleanupMap.cleanup = function(pDb){
+    pDb = __argPDb(pDb);
+    //wasm.xWrap.FuncPtrAdapter.debugFuncInstall = false;
+    /**
+       Installing NULL functions in the C API will remove those
+       bindings. The FuncPtrAdapter which sits between us and the C
+       API will also treat that as an opportunity to
+       wasm.uninstallFunction() any WASM function bindings it has
+       installed for pDb.
+    */
+    const closeArgs = [pDb];
+    for(const name of [
+      'sqlite3_busy_handler',
+      'sqlite3_commit_hook',
+      'sqlite3_preupdate_hook',
+      'sqlite3_progress_handler',
+      'sqlite3_rollback_hook',
+      'sqlite3_set_authorizer',
+      'sqlite3_trace_v2',
+      'sqlite3_update_hook'
+    ]) {
+      const x = wasm.exports[name];
+      if( !x ){
+        /* assume it was built without this API */
+        continue;
+      }
+      closeArgs.length = x.length/*==argument count*/
+      /* recall that undefined entries translate to 0 when passed to
+         WASM. */;
+      try{ capi[name](...closeArgs) }
+      catch(e){
+        sqlite3.config.warn("close-time call of",name+"(",closeArgs,") threw:",e);
+      }
+    }
+    const m = __dbCleanupMap(pDb, 0);
+    if(!m) return;
+    if(m.collation){
+      for(const name of m.collation){
+        try{
+          capi.sqlite3_create_collation_v2(
+            pDb, name, capi.SQLITE_UTF8, 0, 0, 0
+          );
+        }catch(e){
+          /*ignored*/
+        }
+      }
+      delete m.collation;
+    }
+    let i;
+    for(i = 0; i < 2; ++i){ /* Clean up UDFs... */
+      const fmap = i ? m.wudf : m.udf;
+      if(!fmap) continue;
+      const func = i
+            ? capi.sqlite3_create_window_function
+            : capi.sqlite3_create_function_v2;
+      for(const e of fmap){
+        const name = e[0], arities = e[1];
+        const fargs = [pDb, name, 0/*arity*/, capi.SQLITE_UTF8, 0, 0, 0, 0, 0];
+        if(i) fargs.push(0);
+        for(const arity of arities){
+          try{ fargs[2] = arity; func.apply(null, fargs); }
+          catch(e){/*ignored*/}
+        }
+        arities.clear();
+      }
+      fmap.clear();
+    }
+    delete m.udf;
+    delete m.wudf;
+  }/*__dbCleanupMap.cleanup()*/;
+
+  {/* Binding of sqlite3_close_v2() */
+    const __sqlite3CloseV2 = wasm.xWrap("sqlite3_close_v2", "int", "sqlite3*");
+    capi.sqlite3_close_v2 = function(pDb){
+      if(1!==arguments.length) return __dbArgcMismatch(pDb, 'sqlite3_close_v2', 1);
+      if(pDb){
+        try{__dbCleanupMap.cleanup(pDb)} catch(e){/*ignored*/}
+      }
+      return __sqlite3CloseV2(pDb);
+    };
+  }/*sqlite3_close_v2()*/
+
+  if(capi.sqlite3session_create){
+    const __sqlite3SessionDelete = wasm.xWrap(
+      'sqlite3session_delete', undefined, ['sqlite3_session*']
+    );
+    capi.sqlite3session_delete = function(pSession){
+      if(1!==arguments.length){
+        return __dbArgcMismatch(pDb, 'sqlite3session_delete', 1);
+        /* Yes, we're returning a value from a void function. That seems
+           like the lesser evil compared to not maintaining arg-count
+           consistency as we do with other similar bindings. */
+      }
+      else if(pSession){
+        //wasm.xWrap.FuncPtrAdapter.debugFuncInstall = true;
+        capi.sqlite3session_table_filter(pSession, 0, 0);
+      }
+      __sqlite3SessionDelete(pSession);
+    };
+  }
+
+  {/* Bindings for sqlite3_create_collation[_v2]() */
+    // contextKey() impl for wasm.xWrap.FuncPtrAdapter
+    const contextKey = (argv,argIndex)=>{
+      return 'argv['+argIndex+']:'+argv[0/* sqlite3* */]+
+        ':'+wasm.cstrToJs(argv[1/* collation name */]).toLowerCase()
+    };
+    const __sqlite3CreateCollationV2 = wasm.xWrap(
+      'sqlite3_create_collation_v2', 'int', [
+        'sqlite3*', 'string', 'int', '*',
+        new wasm.xWrap.FuncPtrAdapter({
+          /* int(*xCompare)(void*,int,const void*,int,const void*) */
+          name: 'xCompare', signature: 'i(pipip)', contextKey
+        }),
+        new wasm.xWrap.FuncPtrAdapter({
+          /* void(*xDestroy(void*) */
+          name: 'xDestroy', signature: 'v(p)', contextKey
+        })
+      ]
+    );
+
+    /**
+       Works exactly like C's sqlite3_create_collation_v2() except that:
+
+       1) It returns capi.SQLITE_FORMAT if the 3rd argument contains
+          any encoding-related value other than capi.SQLITE_UTF8.  No
+          other encodings are supported. As a special case, if the
+          bottom 4 bits of that argument are 0, SQLITE_UTF8 is
+          assumed.
+
+       2) It accepts JS functions for its function-pointer arguments,
+          for which it will install WASM-bound proxies. The bindings
+          are "permanent," in that they will stay in the WASM environment
+          until it shuts down unless the client calls this again with the
+          same collation name and a value of 0 or null for the
+          the function pointer(s).
+
+       For consistency with the C API, it requires the same number of
+       arguments. It returns capi.SQLITE_MISUSE if passed any other
+       argument count.
+
+       Returns 0 on success, non-0 on error, in which case the error
+       state of pDb (of type `sqlite3*` or argument-convertible to it)
+       may contain more information.
+    */
+    capi.sqlite3_create_collation_v2 = function(pDb,zName,eTextRep,pArg,xCompare,xDestroy){
+      if(6!==arguments.length) return __dbArgcMismatch(pDb, 'sqlite3_create_collation_v2', 6);
+      else if( 0 === (eTextRep & 0xf) ){
+        eTextRep |= capi.SQLITE_UTF8;
+      }else if( capi.SQLITE_UTF8 !== (eTextRep & 0xf) ){
+        return __errEncoding(pDb);
+      }
+      try{
+        const rc = __sqlite3CreateCollationV2(pDb, zName, eTextRep, pArg, xCompare, xDestroy);
+        if(0===rc && xCompare instanceof Function){
+          __dbCleanupMap.addCollation(pDb, zName);
+        }
+        return rc;
+      }catch(e){
+        return util.sqlite3__wasm_db_error(pDb, e);
+      }
+    };
+
+    capi.sqlite3_create_collation = (pDb,zName,eTextRep,pArg,xCompare)=>{
+      return (5===arguments.length)
+        ? capi.sqlite3_create_collation_v2(pDb,zName,eTextRep,pArg,xCompare,0)
+        : __dbArgcMismatch(pDb, 'sqlite3_create_collation', 5);
+    };
+
+  }/*sqlite3_create_collation() and friends*/
+
+  {/* Special-case handling of sqlite3_create_function_v2()
+      and sqlite3_create_window_function(). */
+    /** FuncPtrAdapter for contextKey() for sqlite3_create_function()
+        and friends. */
+    const contextKey = function(argv,argIndex){
+      return (
+        argv[0/* sqlite3* */]
+          +':'+(argv[2/*number of UDF args*/] < 0 ? -1 : argv[2])
+          +':'+argIndex/*distinct for each xAbc callback type*/
+          +':'+wasm.cstrToJs(argv[1]).toLowerCase()
+      )
+    };
+
+    /**
+       JS proxies for the various sqlite3_create[_window]_function()
+       callbacks, structured in a form usable by wasm.xWrap.FuncPtrAdapter.
+    */
+    const __cfProxy = Object.assign(Object.create(null), {
+      xInverseAndStep: {
+        signature:'v(pip)', contextKey,
+        callProxy: (callback)=>{
+          return (pCtx, argc, pArgv)=>{
+            try{ callback(pCtx, ...capi.sqlite3_values_to_js(argc, pArgv)) }
+            catch(e){ capi.sqlite3_result_error_js(pCtx, e) }
+          };
+        }
+      },
+      xFinalAndValue: {
+        signature:'v(p)', contextKey,
+        callProxy: (callback)=>{
+          return (pCtx)=>{
+            try{ capi.sqlite3_result_js(pCtx, callback(pCtx)) }
+            catch(e){ capi.sqlite3_result_error_js(pCtx, e) }
+          };
+        }
+      },
+      xFunc: {
+        signature:'v(pip)', contextKey,
+        callProxy: (callback)=>{
+          return (pCtx, argc, pArgv)=>{
+            try{
+              capi.sqlite3_result_js(
+                pCtx,
+                callback(pCtx, ...capi.sqlite3_values_to_js(argc, pArgv))
+              );
+            }catch(e){
+              //console.error('xFunc() caught:',e);
+              capi.sqlite3_result_error_js(pCtx, e);
+            }
+          };
+        }
+      },
+      xDestroy: {
+        signature:'v(p)', contextKey,
+        //Arguable: a well-behaved destructor doesn't require a proxy.
+        callProxy: (callback)=>{
+          return (pVoid)=>{
+            try{ callback(pVoid) }
+            catch(e){ console.error("UDF xDestroy method threw:",e) }
+          };
+        }
+      }
+    })/*__cfProxy*/;
+
+    const __sqlite3CreateFunction = wasm.xWrap(
+      "sqlite3_create_function_v2", "int", [
+        "sqlite3*", "string"/*funcName*/, "int"/*nArg*/,
+        "int"/*eTextRep*/, "*"/*pApp*/,
+        new wasm.xWrap.FuncPtrAdapter({name: 'xFunc', ...__cfProxy.xFunc}),
+        new wasm.xWrap.FuncPtrAdapter({name: 'xStep', ...__cfProxy.xInverseAndStep}),
+        new wasm.xWrap.FuncPtrAdapter({name: 'xFinal', ...__cfProxy.xFinalAndValue}),
+        new wasm.xWrap.FuncPtrAdapter({name: 'xDestroy', ...__cfProxy.xDestroy})
+      ]
+    );
+
+    const __sqlite3CreateWindowFunction =
+          wasm.exports.sqlite3_create_window_function
+          ? wasm.xWrap(
+            "sqlite3_create_window_function", "int", [
+              "sqlite3*", "string"/*funcName*/, "int"/*nArg*/,
+              "int"/*eTextRep*/, "*"/*pApp*/,
+              new wasm.xWrap.FuncPtrAdapter({name: 'xStep', ...__cfProxy.xInverseAndStep}),
+              new wasm.xWrap.FuncPtrAdapter({name: 'xFinal', ...__cfProxy.xFinalAndValue}),
+              new wasm.xWrap.FuncPtrAdapter({name: 'xValue', ...__cfProxy.xFinalAndValue}),
+              new wasm.xWrap.FuncPtrAdapter({name: 'xInverse', ...__cfProxy.xInverseAndStep}),
+              new wasm.xWrap.FuncPtrAdapter({name: 'xDestroy', ...__cfProxy.xDestroy})
+            ]
+          )
+          : undefined;
+
+    /* Documented in the api object's initializer. */
+    capi.sqlite3_create_function_v2 = function f(
+      pDb, funcName, nArg, eTextRep, pApp,
+      xFunc,   //void (*xFunc)(sqlite3_context*,int,sqlite3_value**)
+      xStep,   //void (*xStep)(sqlite3_context*,int,sqlite3_value**)
+      xFinal,  //void (*xFinal)(sqlite3_context*)
+      xDestroy //void (*xDestroy)(void*)
+    ){
+      if( f.length!==arguments.length ){
+        return __dbArgcMismatch(pDb,"sqlite3_create_function_v2",f.length);
+      }else if( 0 === (eTextRep & 0xf) ){
+        eTextRep |= capi.SQLITE_UTF8;
+      }else if( capi.SQLITE_UTF8 !== (eTextRep & 0xf) ){
+        return __errEncoding(pDb);
+      }
+      try{
+        const rc = __sqlite3CreateFunction(pDb, funcName, nArg, eTextRep,
+                                           pApp, xFunc, xStep, xFinal, xDestroy);
+        if(0===rc && (xFunc instanceof Function
+                      || xStep instanceof Function
+                      || xFinal instanceof Function
+                      || xDestroy instanceof Function)){
+          __dbCleanupMap.addFunction(pDb, funcName, nArg);
+        }
+        return rc;
+      }catch(e){
+        console.error("sqlite3_create_function_v2() setup threw:",e);
+        return util.sqlite3__wasm_db_error(pDb, e, "Creation of UDF threw: "+e);
+      }
+    };
+
+    /* Documented in the api object's initializer. */
+    capi.sqlite3_create_function = function f(
+      pDb, funcName, nArg, eTextRep, pApp,
+      xFunc, xStep, xFinal
+    ){
+      return (f.length===arguments.length)
+        ? capi.sqlite3_create_function_v2(pDb, funcName, nArg, eTextRep,
+                                          pApp, xFunc, xStep, xFinal, 0)
+        : __dbArgcMismatch(pDb,"sqlite3_create_function",f.length);
+    };
+
+    /* Documented in the api object's initializer. */
+    if( __sqlite3CreateWindowFunction ){
+      capi.sqlite3_create_window_function = function f(
+        pDb, funcName, nArg, eTextRep, pApp,
+        xStep,   //void (*xStep)(sqlite3_context*,int,sqlite3_value**)
+        xFinal,  //void (*xFinal)(sqlite3_context*)
+        xValue,  //void (*xValue)(sqlite3_context*)
+        xInverse,//void (*xInverse)(sqlite3_context*,int,sqlite3_value**)
+        xDestroy //void (*xDestroy)(void*)
+      ){
+        if( f.length!==arguments.length ){
+          return __dbArgcMismatch(pDb,"sqlite3_create_window_function",f.length);
+        }else if( 0 === (eTextRep & 0xf) ){
+          eTextRep |= capi.SQLITE_UTF8;
+        }else if( capi.SQLITE_UTF8 !== (eTextRep & 0xf) ){
+          return __errEncoding(pDb);
+        }
+        try{
+          const rc = __sqlite3CreateWindowFunction(pDb, funcName, nArg, eTextRep,
+                                                   pApp, xStep, xFinal, xValue,
+                                                   xInverse, xDestroy);
+          if(0===rc && (xStep instanceof Function
+                        || xFinal instanceof Function
+                        || xValue instanceof Function
+                        || xInverse instanceof Function
+                        || xDestroy instanceof Function)){
+            __dbCleanupMap.addWindowFunc(pDb, funcName, nArg);
+          }
+          return rc;
+        }catch(e){
+          console.error("sqlite3_create_window_function() setup threw:",e);
+          return util.sqlite3__wasm_db_error(pDb, e, "Creation of UDF threw: "+e);
+        }
+      };
+    }else{
+      delete capi.sqlite3_create_window_function;
+    }
+    /**
+       A _deprecated_ alias for capi.sqlite3_result_js() which
+       predates the addition of that function in the public API.
+    */
+    capi.sqlite3_create_function_v2.udfSetResult =
+      capi.sqlite3_create_function.udfSetResult = capi.sqlite3_result_js;
+    if(capi.sqlite3_create_window_function){
+      capi.sqlite3_create_window_function.udfSetResult = capi.sqlite3_result_js;
+    }
+
+    /**
+       A _deprecated_ alias for capi.sqlite3_values_to_js() which
+       predates the addition of that function in the public API.
+    */
+    capi.sqlite3_create_function_v2.udfConvertArgs =
+      capi.sqlite3_create_function.udfConvertArgs = capi.sqlite3_values_to_js;
+    if(capi.sqlite3_create_window_function){
+      capi.sqlite3_create_window_function.udfConvertArgs = capi.sqlite3_values_to_js;
+    }
+
+    /**
+       A _deprecated_ alias for capi.sqlite3_result_error_js() which
+       predates the addition of that function in the public API.
+    */
+    capi.sqlite3_create_function_v2.udfSetError =
+      capi.sqlite3_create_function.udfSetError = capi.sqlite3_result_error_js;
+    if(capi.sqlite3_create_window_function){
+      capi.sqlite3_create_window_function.udfSetError = capi.sqlite3_result_error_js;
+    }
+
+  }/*sqlite3_create_function_v2() and sqlite3_create_window_function() proxies*/;
+
+  {/* Special-case handling of sqlite3_prepare_v2() and
+      sqlite3_prepare_v3() */
+
+    /**
+       Helper for string:flexible conversions which require a
+       byte-length counterpart argument. Passed a value and its
+       ostensible length, this function returns [V,N], where V is
+       either v or a transformed copy of v and N is either n, -1, or
+       the byte length of v (if it's a byte array or ArrayBuffer).
+    */
+    const __flexiString = (v,n)=>{
+      if('string'===typeof v){
+        n = -1;
+      }else if(util.isSQLableTypedArray(v)){
+        n = v.byteLength;
+        v = util.typedArrayToString(
+          (v instanceof ArrayBuffer) ? new Uint8Array(v) : v
+        );
+      }else if(Array.isArray(v)){
+        v = v.join("");
+        n = -1;
+      }
+      return [v, n];
+    };
+
+    /**
+       Scope-local holder of the two impls of sqlite3_prepare_v2/v3().
+    */
+    const __prepare = {
+      /**
+         This binding expects a JS string as its 2nd argument and
+         null as its final argument. In order to compile multiple
+         statements from a single string, the "full" impl (see
+         below) must be used.
+      */
+      basic: wasm.xWrap('sqlite3_prepare_v3',
+                        "int", ["sqlite3*", "string",
+                                "int"/*ignored for this impl!*/,
+                                "int", "**",
+                                "**"/*MUST be 0 or null or undefined!*/]),
+      /**
+         Impl which requires that the 2nd argument be a pointer
+         to the SQL string, instead of being converted to a
+         string. This variant is necessary for cases where we
+         require a non-NULL value for the final argument
+         (exec()'ing multiple statements from one input
+         string). For simpler cases, where only the first
+         statement in the SQL string is required, the wrapper
+         named sqlite3_prepare_v2() is sufficient and easier to
+         use because it doesn't require dealing with pointers.
+      */
+      full: wasm.xWrap('sqlite3_prepare_v3',
+                       "int", ["sqlite3*", "*", "int", "int",
+                               "**", "**"])
+    };
+
+    /* Documented in the capi object's initializer. */
+    capi.sqlite3_prepare_v3 = function f(pDb, sql, sqlLen, prepFlags, ppStmt, pzTail){
+      if(f.length!==arguments.length){
+        return __dbArgcMismatch(pDb,"sqlite3_prepare_v3",f.length);
+      }
+      const [xSql, xSqlLen] = __flexiString(sql, sqlLen);
+      switch(typeof xSql){
+          case 'string': return __prepare.basic(pDb, xSql, xSqlLen, prepFlags, ppStmt, null);
+          case 'number': return __prepare.full(pDb, xSql, xSqlLen, prepFlags, ppStmt, pzTail);
+          default:
+            return util.sqlite3__wasm_db_error(
+              pDb, capi.SQLITE_MISUSE,
+              "Invalid SQL argument type for sqlite3_prepare_v2/v3()."
+            );
+      }
+    };
+
+    /* Documented in the capi object's initializer. */
+    capi.sqlite3_prepare_v2 = function f(pDb, sql, sqlLen, ppStmt, pzTail){
+      return (f.length===arguments.length)
+        ? capi.sqlite3_prepare_v3(pDb, sql, sqlLen, 0, ppStmt, pzTail)
+        : __dbArgcMismatch(pDb,"sqlite3_prepare_v2",f.length);
+    };
+
+  }/*sqlite3_prepare_v2/v3()*/
+
+  {/*sqlite3_bind_text/blob()*/
+    const __bindText = wasm.xWrap("sqlite3_bind_text", "int", [
+      "sqlite3_stmt*", "int", "string", "int", "*"
+    ]);
+    const __bindBlob = wasm.xWrap("sqlite3_bind_blob", "int", [
+      "sqlite3_stmt*", "int", "*", "int", "*"
+    ]);
+
+    /** Documented in the capi object's initializer. */
+    capi.sqlite3_bind_text = function f(pStmt, iCol, text, nText, xDestroy){
+      if(f.length!==arguments.length){
+        return __dbArgcMismatch(capi.sqlite3_db_handle(pStmt),
+                                "sqlite3_bind_text", f.length);
+      }else if(wasm.isPtr(text) || null===text){
+        return __bindText(pStmt, iCol, text, nText, xDestroy);
+      }else if(text instanceof ArrayBuffer){
+        text = new Uint8Array(text);
+      }else if(Array.isArray(pMem)){
+        text = pMem.join('');
+      }
+      let p, n;
+      try{
+        if(util.isSQLableTypedArray(text)){
+          p = wasm.allocFromTypedArray(text);
+          n = text.byteLength;
+        }else if('string'===typeof text){
+          [p, n] = wasm.allocCString(text);
+        }else{
+          return util.sqlite3__wasm_db_error(
+            capi.sqlite3_db_handle(pStmt), capi.SQLITE_MISUSE,
+            "Invalid 3rd argument type for sqlite3_bind_text()."
+          );
+        }
+        return __bindText(pStmt, iCol, p, n, capi.SQLITE_WASM_DEALLOC);
+      }catch(e){
+        wasm.dealloc(p);
+        return util.sqlite3__wasm_db_error(
+          capi.sqlite3_db_handle(pStmt), e
+        );
+      }
+    }/*sqlite3_bind_text()*/;
+
+    /** Documented in the capi object's initializer. */
+    capi.sqlite3_bind_blob = function f(pStmt, iCol, pMem, nMem, xDestroy){
+      if(f.length!==arguments.length){
+        return __dbArgcMismatch(capi.sqlite3_db_handle(pStmt),
+                                "sqlite3_bind_blob", f.length);
+      }else if(wasm.isPtr(pMem) || null===pMem){
+        return __bindBlob(pStmt, iCol, pMem, nMem, xDestroy);
+      }else if(pMem instanceof ArrayBuffer){
+        pMem = new Uint8Array(pMem);
+      }else if(Array.isArray(pMem)){
+        pMem = pMem.join('');
+      }
+      let p, n;
+      try{
+        if(util.isBindableTypedArray(pMem)){
+          p = wasm.allocFromTypedArray(pMem);
+          n = nMem>=0 ? nMem : pMem.byteLength;
+        }else if('string'===typeof pMem){
+          [p, n] = wasm.allocCString(pMem);
+        }else{
+          return util.sqlite3__wasm_db_error(
+            capi.sqlite3_db_handle(pStmt), capi.SQLITE_MISUSE,
+            "Invalid 3rd argument type for sqlite3_bind_blob()."
+          );
+        }
+        return __bindBlob(pStmt, iCol, p, n, capi.SQLITE_WASM_DEALLOC);
+      }catch(e){
+        wasm.dealloc(p);
+        return util.sqlite3__wasm_db_error(
+          capi.sqlite3_db_handle(pStmt), e
+        );
+      }
+    }/*sqlite3_bind_blob()*/;
+
+  }/*sqlite3_bind_text/blob()*/
+
+  {/* sqlite3_config() */
+    /**
+       Wraps a small subset of the C API's sqlite3_config() options.
+       Unsupported options trigger the return of capi.SQLITE_NOTFOUND.
+       Passing fewer than 2 arguments triggers return of
+       capi.SQLITE_MISUSE.
+    */
+    capi.sqlite3_config = function(op, ...args){
+      if(arguments.length<2) return capi.SQLITE_MISUSE;
+      switch(op){
+          case capi.SQLITE_CONFIG_COVERING_INDEX_SCAN: // 20  /* int */
+          case capi.SQLITE_CONFIG_MEMSTATUS:// 9  /* boolean */
+          case capi.SQLITE_CONFIG_SMALL_MALLOC: // 27  /* boolean */
+          case capi.SQLITE_CONFIG_SORTERREF_SIZE: // 28  /* int nByte */
+          case capi.SQLITE_CONFIG_STMTJRNL_SPILL: // 26  /* int nByte */
+          case capi.SQLITE_CONFIG_URI:// 17  /* int */
+            return wasm.exports.sqlite3__wasm_config_i(op, args[0]);
+          case capi.SQLITE_CONFIG_LOOKASIDE: // 13  /* int int */
+            return wasm.exports.sqlite3__wasm_config_ii(op, args[0], args[1]);
+          case capi.SQLITE_CONFIG_MEMDB_MAXSIZE: // 29  /* sqlite3_int64 */
+            return wasm.exports.sqlite3__wasm_config_j(op, args[0]);
+          case capi.SQLITE_CONFIG_GETMALLOC: // 5 /* sqlite3_mem_methods* */
+          case capi.SQLITE_CONFIG_GETMUTEX: // 11  /* sqlite3_mutex_methods* */
+          case capi.SQLITE_CONFIG_GETPCACHE2: // 19  /* sqlite3_pcache_methods2* */
+          case capi.SQLITE_CONFIG_GETPCACHE: // 15  /* no-op */
+          case capi.SQLITE_CONFIG_HEAP: // 8  /* void*, int nByte, int min */
+          case capi.SQLITE_CONFIG_LOG: // 16  /* xFunc, void* */
+          case capi.SQLITE_CONFIG_MALLOC:// 4  /* sqlite3_mem_methods* */
+          case capi.SQLITE_CONFIG_MMAP_SIZE: // 22  /* sqlite3_int64, sqlite3_int64 */
+          case capi.SQLITE_CONFIG_MULTITHREAD: // 2 /* nil */
+          case capi.SQLITE_CONFIG_MUTEX: // 10  /* sqlite3_mutex_methods* */
+          case capi.SQLITE_CONFIG_PAGECACHE: // 7  /* void*, int sz, int N */
+          case capi.SQLITE_CONFIG_PCACHE2: // 18  /* sqlite3_pcache_methods2* */
+          case capi.SQLITE_CONFIG_PCACHE: // 14  /* no-op */
+          case capi.SQLITE_CONFIG_PCACHE_HDRSZ: // 24  /* int *psz */
+          case capi.SQLITE_CONFIG_PMASZ: // 25  /* unsigned int szPma */
+          case capi.SQLITE_CONFIG_SERIALIZED: // 3 /* nil */
+          case capi.SQLITE_CONFIG_SINGLETHREAD: // 1 /* nil */:
+          case capi.SQLITE_CONFIG_SQLLOG: // 21  /* xSqllog, void* */
+          case capi.SQLITE_CONFIG_WIN32_HEAPSIZE: // 23  /* int nByte */
+          default:
+          /* maintenance note: we specifically do not include
+             SQLITE_CONFIG_ROWID_IN_VIEW here, on the grounds that
+             it's only for legacy support and no apps written with
+             this API require that. */
+            return capi.SQLITE_NOTFOUND;
+      }
+    };
+  }/* sqlite3_config() */
+
+  {/*auto-extension bindings.*/
+    const __autoExtFptr = new Set;
+
+    capi.sqlite3_auto_extension = function(fPtr){
+      if( fPtr instanceof Function ){
+        fPtr = wasm.installFunction('i(ppp)', fPtr);
+      }else if( 1!==arguments.length || !wasm.isPtr(fPtr) ){
+        return capi.SQLITE_MISUSE;
+      }
+      const rc = wasm.exports.sqlite3_auto_extension(fPtr);
+      if( fPtr!==arguments[0] ){
+        if(0===rc) __autoExtFptr.add(fPtr);
+        else wasm.uninstallFunction(fPtr);
+      }
+      return rc;
+    };
+
+    capi.sqlite3_cancel_auto_extension = function(fPtr){
+     /* We do not do an automatic JS-to-WASM function conversion here
+        because it would be senseless: the converted pointer would
+        never possibly match an already-installed one. */;
+      if(!fPtr || 1!==arguments.length || !wasm.isPtr(fPtr)) return 0;
+      return wasm.exports.sqlite3_cancel_auto_extension(fPtr);
+      /* Note that it "cannot happen" that a client passes a pointer which
+         is in __autoExtFptr because __autoExtFptr only contains automatic
+         conversions created inside sqlite3_auto_extension() and
+         never exposed to the client. */
+    };
+
+    capi.sqlite3_reset_auto_extension = function(){
+      wasm.exports.sqlite3_reset_auto_extension();
+      for(const fp of __autoExtFptr) wasm.uninstallFunction(fp);
+      __autoExtFptr.clear();
+    };
+  }/* auto-extension */
+
+  const pKvvfs = capi.sqlite3_vfs_find("kvvfs");
+  if( pKvvfs ){/* kvvfs-specific glue */
+    if(util.isUIThread()){
+      const kvvfsMethods = new capi.sqlite3_kvvfs_methods(
+        wasm.exports.sqlite3__wasm_kvvfs_methods()
+      );
+      delete capi.sqlite3_kvvfs_methods;
+
+      const kvvfsMakeKey = wasm.exports.sqlite3__wasm_kvvfsMakeKeyOnPstack,
+            pstack = wasm.pstack;
+
+      const kvvfsStorage = (zClass)=>
+            ((115/*=='s'*/===wasm.peek(zClass))
+             ? sessionStorage : localStorage);
+
+      /**
+         Implementations for members of the object referred to by
+         sqlite3__wasm_kvvfs_methods(). We swap out the native
+         implementations with these, which use localStorage or
+         sessionStorage for their backing store.
+      */
+      const kvvfsImpls = {
+        xRead: (zClass, zKey, zBuf, nBuf)=>{
+          const stack = pstack.pointer,
+                astack = wasm.scopedAllocPush();
+          try {
+            const zXKey = kvvfsMakeKey(zClass,zKey);
+            if(!zXKey) return -3/*OOM*/;
+            const jKey = wasm.cstrToJs(zXKey);
+            const jV = kvvfsStorage(zClass).getItem(jKey);
+            if(!jV) return -1;
+            const nV = jV.length /* Note that we are relying 100% on v being
+                                    ASCII so that jV.length is equal to the
+                                    C-string's byte length. */;
+            if(nBuf<=0) return nV;
+            else if(1===nBuf){
+              wasm.poke(zBuf, 0);
+              return nV;
+            }
+            const zV = wasm.scopedAllocCString(jV);
+            if(nBuf > nV + 1) nBuf = nV + 1;
+            wasm.heap8u().copyWithin(zBuf, zV, zV + nBuf - 1);
+            wasm.poke(zBuf + nBuf - 1, 0);
+            return nBuf - 1;
+          }catch(e){
+            console.error("kvstorageRead()",e);
+            return -2;
+          }finally{
+            pstack.restore(stack);
+            wasm.scopedAllocPop(astack);
+          }
+        },
+        xWrite: (zClass, zKey, zData)=>{
+          const stack = pstack.pointer;
+          try {
+            const zXKey = kvvfsMakeKey(zClass,zKey);
+            if(!zXKey) return 1/*OOM*/;
+            const jKey = wasm.cstrToJs(zXKey);
+            kvvfsStorage(zClass).setItem(jKey, wasm.cstrToJs(zData));
+            return 0;
+          }catch(e){
+            console.error("kvstorageWrite()",e);
+            return capi.SQLITE_IOERR;
+          }finally{
+            pstack.restore(stack);
+          }
+        },
+        xDelete: (zClass, zKey)=>{
+          const stack = pstack.pointer;
+          try {
+            const zXKey = kvvfsMakeKey(zClass,zKey);
+            if(!zXKey) return 1/*OOM*/;
+            kvvfsStorage(zClass).removeItem(wasm.cstrToJs(zXKey));
+            return 0;
+          }catch(e){
+            console.error("kvstorageDelete()",e);
+            return capi.SQLITE_IOERR;
+          }finally{
+            pstack.restore(stack);
+          }
+        }
+      }/*kvvfsImpls*/;
+      for(const k of Object.keys(kvvfsImpls)){
+        kvvfsMethods[kvvfsMethods.memberKey(k)] =
+          wasm.installFunction(
+            kvvfsMethods.memberSignature(k),
+            kvvfsImpls[k]
+          );
+      }
+    }else{
+      /* Worker thread: unregister kvvfs to avoid it being used
+         for anything other than local/sessionStorage. It "can"
+         be used that way but it's not really intended to be. */
+      capi.sqlite3_vfs_unregister(pKvvfs);
+    }
+  }/*pKvvfs*/
+
+  /* Warn if client-level code makes use of FuncPtrAdapter. */
+  wasm.xWrap.FuncPtrAdapter.warnOnUse = true;
+
+  const StructBinder = sqlite3.StructBinder
+  /* we require a local alias b/c StructBinder is removed from the sqlite3
+     object during the final steps of the API cleanup. */;
+  /**
+     Installs a StructBinder-bound function pointer member of the
+     given name and function in the given StructBinder.StructType
+     target object.
+
+     It creates a WASM proxy for the given function and arranges for
+     that proxy to be cleaned up when tgt.dispose() is called. Throws
+     on the slightest hint of error, e.g. tgt is-not-a StructType,
+     name does not map to a struct-bound member, etc.
+
+     As a special case, if the given function is a pointer, then
+     `wasm.functionEntry()` is used to validate that it is a known
+     function. If so, it is used as-is with no extra level of proxying
+     or cleanup, else an exception is thrown. It is legal to pass a
+     value of 0, indicating a NULL pointer, with the caveat that 0
+     _is_ a legal function pointer in WASM but it will not be accepted
+     as such _here_. (Justification: the function at address zero must
+     be one which initially came from the WASM module, not a method we
+     want to bind to a virtual table or VFS.)
+
+     This function returns a proxy for itself which is bound to tgt
+     and takes 2 args (name,func). That function returns the same
+     thing as this one, permitting calls to be chained.
+
+     If called with only 1 arg, it has no side effects but returns a
+     func with the same signature as described above.
+
+     ACHTUNG: because we cannot generically know how to transform JS
+     exceptions into result codes, the installed functions do no
+     automatic catching of exceptions. It is critical, to avoid
+     undefined behavior in the C layer, that methods mapped via
+     this function do not throw. The exception, as it were, to that
+     rule is...
+
+     If applyArgcCheck is true then each JS function (as opposed to
+     function pointers) gets wrapped in a proxy which asserts that it
+     is passed the expected number of arguments, throwing if the
+     argument count does not match expectations. That is only intended
+     for dev-time usage for sanity checking, and may leave the C
+     environment in an undefined state.
+  */
+  const installMethod = function callee(
+    tgt, name, func, applyArgcCheck = callee.installMethodArgcCheck
+  ){
+    if(!(tgt instanceof StructBinder.StructType)){
+      toss("Usage error: target object is-not-a StructType.");
+    }else if(!(func instanceof Function) && !wasm.isPtr(func)){
+      toss("Usage errror: expecting a Function or WASM pointer to one.");
+    }
+    if(1===arguments.length){
+      return (n,f)=>callee(tgt, n, f, applyArgcCheck);
+    }
+    if(!callee.argcProxy){
+      callee.argcProxy = function(tgt, funcName, func,sig){
+        return function(...args){
+          if(func.length!==arguments.length){
+            toss("Argument mismatch for",
+                 tgt.structInfo.name+"::"+funcName
+                 +": Native signature is:",sig);
+          }
+          return func.apply(this, args);
+        }
+      };
+      /* An ondispose() callback for use with
+         StructBinder-created types. */
+      callee.removeFuncList = function(){
+        if(this.ondispose.__removeFuncList){
+          this.ondispose.__removeFuncList.forEach(
+            (v,ndx)=>{
+              if('number'===typeof v){
+                try{wasm.uninstallFunction(v)}
+                catch(e){/*ignore*/}
+              }
+              /* else it's a descriptive label for the next number in
+                 the list. */
+            }
+          );
+          delete this.ondispose.__removeFuncList;
+        }
+      };
+    }/*static init*/
+    const sigN = tgt.memberSignature(name);
+    if(sigN.length<2){
+      toss("Member",name,"does not have a function pointer signature:",sigN);
+    }
+    const memKey = tgt.memberKey(name);
+    const fProxy = (applyArgcCheck && !wasm.isPtr(func))
+    /** This middle-man proxy is only for use during development, to
+        confirm that we always pass the proper number of
+        arguments. We know that the C-level code will always use the
+        correct argument count. */
+          ? callee.argcProxy(tgt, memKey, func, sigN)
+          : func;
+    if(wasm.isPtr(fProxy)){
+      if(fProxy && !wasm.functionEntry(fProxy)){
+        toss("Pointer",fProxy,"is not a WASM function table entry.");
+      }
+      tgt[memKey] = fProxy;
+    }else{
+      const pFunc = wasm.installFunction(fProxy, tgt.memberSignature(name, true));
+      tgt[memKey] = pFunc;
+      if(!tgt.ondispose || !tgt.ondispose.__removeFuncList){
+        tgt.addOnDispose('ondispose.__removeFuncList handler',
+                         callee.removeFuncList);
+        tgt.ondispose.__removeFuncList = [];
+      }
+      tgt.ondispose.__removeFuncList.push(memKey, pFunc);
+    }
+    return (n,f)=>callee(tgt, n, f, applyArgcCheck);
+  }/*installMethod*/;
+  installMethod.installMethodArgcCheck = false;
+
+  /**
+     Installs methods into the given StructBinder.StructType-type
+     instance. Each entry in the given methods object must map to a
+     known member of the given StructType, else an exception will be
+     triggered.  See installMethod() for more details, including the
+     semantics of the 3rd argument.
+
+     As an exception to the above, if any two or more methods in the
+     2nd argument are the exact same function, installMethod() is
+     _not_ called for the 2nd and subsequent instances, and instead
+     those instances get assigned the same method pointer which is
+     created for the first instance. This optimization is primarily to
+     accommodate special handling of sqlite3_module::xConnect and
+     xCreate methods.
+
+     On success, returns its first argument. Throws on error.
+  */
+  const installMethods = function(
+    structInstance, methods, applyArgcCheck = installMethod.installMethodArgcCheck
+  ){
+    const seen = new Map /* map of <Function, memberName> */;
+    for(const k of Object.keys(methods)){
+      const m = methods[k];
+      const prior = seen.get(m);
+      if(prior){
+        const mkey = structInstance.memberKey(k);
+        structInstance[mkey] = structInstance[structInstance.memberKey(prior)];
+      }else{
+        installMethod(structInstance, k, m, applyArgcCheck);
+        seen.set(m, k);
+      }
+    }
+    return structInstance;
+  };
+
+  /**
+     Equivalent to calling installMethod(this,...arguments) with a
+     first argument of this object. If called with 1 or 2 arguments
+     and the first is an object, it's instead equivalent to calling
+     installMethods(this,...arguments).
+  */
+  StructBinder.StructType.prototype.installMethod = function callee(
+    name, func, applyArgcCheck = installMethod.installMethodArgcCheck
+  ){
+    return (arguments.length < 3 && name && 'object'===typeof name)
+      ? installMethods(this, ...arguments)
+      : installMethod(this, ...arguments);
+  };
+
+  /**
+     Equivalent to calling installMethods() with a first argument
+     of this object.
+  */
+  StructBinder.StructType.prototype.installMethods = function(
+    methods, applyArgcCheck = installMethod.installMethodArgcCheck
+  ){
+    return installMethods(this, methods, applyArgcCheck);
+  };
+
+});
diff --git a/ext/wasm/api/sqlite3-api-oo1.c-pp.js b/ext/wasm/api/sqlite3-api-oo1.c-pp.js
new file mode 100644
index 0000000000000000000000000000000000000000..3d6a24c77bb73ccff0aa7e1a6c084c934aa2573a
--- /dev/null
+++ b/ext/wasm/api/sqlite3-api-oo1.c-pp.js
@@ -0,0 +1,2170 @@
+//#ifnot omit-oo1
+/*
+  2022-07-22
+
+  The author disclaims copyright to this source code.  In place of a
+  legal notice, here is a blessing:
+
+  *   May you do good and not evil.
+  *   May you find forgiveness for yourself and forgive others.
+  *   May you share freely, never taking more than you give.
+
+  ***********************************************************************
+
+  This file contains the so-called OO #1 API wrapper for the sqlite3
+  WASM build. It requires that sqlite3-api-glue.js has already run
+  and it installs its deliverable as globalThis.sqlite3.oo1.
+*/
+globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
+  const toss = (...args)=>{throw new Error(args.join(' '))};
+  const toss3 = (...args)=>{throw new sqlite3.SQLite3Error(...args)};
+
+  const capi = sqlite3.capi, wasm = sqlite3.wasm, util = sqlite3.util;
+  /* What follows is colloquially known as "OO API #1". It is a
+     binding of the sqlite3 API which is designed to be run within
+     the same thread (main or worker) as the one in which the
+     sqlite3 WASM binding was initialized. This wrapper cannot use
+     the sqlite3 binding if, e.g., the wrapper is in the main thread
+     and the sqlite3 API is in a worker. */
+
+  /**
+     In order to keep clients from manipulating, perhaps
+     inadvertently, the underlying pointer values of DB and Stmt
+     instances, we'll gate access to them via the `pointer` property
+     accessor and store their real values in this map. Keys = DB/Stmt
+     objects, values = pointer values. This also unifies how those are
+     accessed, for potential use downstream via custom
+     wasm.xWrap() function signatures which know how to extract
+     it.
+  */
+  const __ptrMap = new WeakMap();
+  /**
+     Map of DB instances to objects, each object being a map of Stmt
+     wasm pointers to Stmt objects.
+  */
+  const __stmtMap = new WeakMap();
+
+  /** If object opts has _its own_ property named p then that
+      property's value is returned, else dflt is returned. */
+  const getOwnOption = (opts, p, dflt)=>{
+    const d = Object.getOwnPropertyDescriptor(opts,p);
+    return d ? d.value : dflt;
+  };
+
+  // Documented in DB.checkRc()
+  const checkSqlite3Rc = function(dbPtr, sqliteResultCode){
+    if(sqliteResultCode){
+      if(dbPtr instanceof DB) dbPtr = dbPtr.pointer;
+      toss3(
+        sqliteResultCode,
+        "sqlite3 result code",sqliteResultCode+":",
+        (dbPtr
+         ? capi.sqlite3_errmsg(dbPtr)
+         : capi.sqlite3_errstr(sqliteResultCode))
+      );
+    }
+    return arguments[0];
+  };
+
+  /**
+     sqlite3_trace_v2() callback which gets installed by the DB ctor
+     if its open-flags contain "t".
+  */
+  const __dbTraceToConsole =
+        wasm.installFunction('i(ippp)', function(t,c,p,x){
+          if(capi.SQLITE_TRACE_STMT===t){
+            // x == SQL, p == sqlite3_stmt*
+            console.log("SQL TRACE #"+(++this.counter)+' via sqlite3@'+c+':',
+                        wasm.cstrToJs(x));
+          }
+        }.bind({counter: 0}));
+
+  /**
+     A map of sqlite3_vfs pointers to SQL code or a callback function
+     to run when the DB constructor opens a database with the given
+     VFS. In the latter case, the call signature is
+     (theDbObject,sqlite3Namespace) and the callback is expected to
+     throw on error.
+  */
+  const __vfsPostOpenCallback = Object.create(null);
+
+//#if enable-see
+  /**
+     Converts ArrayBuffer or Uint8Array ba into a string of hex
+     digits.
+  */
+  const byteArrayToHex = function(ba){
+    if( ba instanceof ArrayBuffer ){
+      ba = new Uint8Array(ba);
+    }
+    const li = [];
+    const digits = "0123456789abcdef";
+    for( const d of ba ){
+      li.push( digits[(d & 0xf0) >> 4], digits[d & 0x0f] );
+    }
+    return li.join('');
+  };
+
+  /**
+     Internal helper to apply an SEE key to a just-opened
+     database. Requires that db be-a DB object which has just been
+     opened, opt be the options object processed by its ctor, and opt
+     must have either the key, hexkey, or textkey properties, either
+     as a string, an ArrayBuffer, or a Uint8Array.
+
+     This is a no-op in non-SEE builds. It throws on error and returns
+     without side effects if none of the key/textkey/hexkey options
+     are set. It throws if more than one is set or if any are set to
+     values of an invalid type.
+
+     Returns true if it applies the key, else an unspecified falsy
+     value.  Note that applying the key does not imply that the key is
+     correct, only that it was passed on to the db.
+  */
+  const dbCtorApplySEEKey = function(db,opt){
+    if( !capi.sqlite3_key_v2 ) return;
+    let keytype;
+    let key;
+    const check = (opt.key ? 1 : 0) + (opt.hexkey ? 1 : 0) + (opt.textkey ? 1 : 0);
+    if( !check ) return;
+    else if( check>1 ){
+      toss3(capi.SQLITE_MISUSE,
+            "Only ONE of (key, hexkey, textkey) may be provided.");
+    }
+    if( opt.key ){
+      /* It is not legal to bind an argument to PRAGMA key=?, so we
+         convert it to a hexkey... */
+      keytype = 'key';
+      key = opt.key;
+      if('string'===typeof key){
+        key = new TextEncoder('utf-8').encode(key);
+      }
+      if((key instanceof ArrayBuffer) || (key instanceof Uint8Array)){
+        key = byteArrayToHex(key);
+        keytype = 'hexkey';
+      }else{
+        toss3(capi.SQLITE_MISUSE,
+              "Invalid value for the 'key' option. Expecting a string,",
+              "ArrayBuffer, or Uint8Array.");
+        return;
+      }
+    }else if( opt.textkey ){
+      /* For textkey we need it to be in string form, so convert it to
+         a string if it's a byte array... */
+      keytype = 'textkey';
+      key = opt.textkey;
+      if(key instanceof ArrayBuffer){
+        key = new Uint8Array(key);
+      }
+      if(key instanceof Uint8Array){
+        key = new TextDecoder('utf-8').decode(key);
+      }else if('string'!==typeof key){
+        toss3(capi.SQLITE_MISUSE,
+              "Invalid value for the 'textkey' option. Expecting a string,",
+              "ArrayBuffer, or Uint8Array.");
+      }
+    }else if( opt.hexkey ){
+      keytype = 'hexkey';
+      key = opt.hexkey;
+      if((key instanceof ArrayBuffer) || (key instanceof Uint8Array)){
+        key = byteArrayToHex(key);
+      }else if('string'!==typeof key){
+        toss3(capi.SQLITE_MISUSE,
+              "Invalid value for the 'hexkey' option. Expecting a string,",
+              "ArrayBuffer, or Uint8Array.");
+      }
+      /* else assume it's valid hex codes */
+    }else{
+      return;
+    }
+    let stmt;
+    try{
+      stmt = db.prepare("PRAGMA "+keytype+"="+util.sqlite3__wasm_qfmt_token(key, 1));
+      stmt.step();
+      return true;
+    }finally{
+      if(stmt) stmt.finalize();
+    }
+  };
+//#endif enable-see
+
+  /**
+     A proxy for DB class constructors. It must be called with the
+     being-construct DB object as its "this". See the DB constructor
+     for the argument docs. This is split into a separate function
+     in order to enable simple creation of special-case DB constructors,
+     e.g. JsStorageDb and OpfsDb.
+
+     Expects to be passed a configuration object with the following
+     properties:
+
+     - `.filename`: the db filename. It may be a special name like ":memory:"
+       or "".
+
+     - `.flags`: as documented in the DB constructor.
+
+     - `.vfs`: as documented in the DB constructor.
+
+     It also accepts those as the first 3 arguments.
+  */
+  const dbCtorHelper = function ctor(...args){
+    if(!ctor._name2vfs){
+      /**
+         Map special filenames which we handle here (instead of in C)
+         to some helpful metadata...
+
+         As of 2022-09-20, the C API supports the names :localStorage:
+         and :sessionStorage: for kvvfs. However, C code cannot
+         determine (without embedded JS code, e.g. via Emscripten's
+         EM_JS()) whether the kvvfs is legal in the current browser
+         context (namely the main UI thread). In order to help client
+         code fail early on, instead of it being delayed until they
+         try to read or write a kvvfs-backed db, we'll check for those
+         names here and throw if they're not legal in the current
+         context.
+      */
+      ctor._name2vfs = Object.create(null);
+      const isWorkerThread = ('function'===typeof importScripts/*===running in worker thread*/)
+            ? (n)=>toss3("The VFS for",n,"is only available in the main window thread.")
+            : false;
+      ctor._name2vfs[':localStorage:'] = {
+        vfs: 'kvvfs', filename: isWorkerThread || (()=>'local')
+      };
+      ctor._name2vfs[':sessionStorage:'] = {
+        vfs: 'kvvfs', filename: isWorkerThread || (()=>'session')
+      };
+    }
+    const opt = ctor.normalizeArgs(...args);
+    let fn = opt.filename, vfsName = opt.vfs, flagsStr = opt.flags;
+    if(('string'!==typeof fn && 'number'!==typeof fn)
+       || 'string'!==typeof flagsStr
+       || (vfsName && ('string'!==typeof vfsName && 'number'!==typeof vfsName))){
+      sqlite3.config.error("Invalid DB ctor args",opt,arguments);
+      toss3("Invalid arguments for DB constructor.");
+    }
+    let fnJs = ('number'===typeof fn) ? wasm.cstrToJs(fn) : fn;
+    const vfsCheck = ctor._name2vfs[fnJs];
+    if(vfsCheck){
+      vfsName = vfsCheck.vfs;
+      fn = fnJs = vfsCheck.filename(fnJs);
+    }
+    let pDb, oflags = 0;
+    if( flagsStr.indexOf('c')>=0 ){
+      oflags |= capi.SQLITE_OPEN_CREATE | capi.SQLITE_OPEN_READWRITE;
+    }
+    if( flagsStr.indexOf('w')>=0 ) oflags |= capi.SQLITE_OPEN_READWRITE;
+    if( 0===oflags ) oflags |= capi.SQLITE_OPEN_READONLY;
+    oflags |= capi.SQLITE_OPEN_EXRESCODE;
+    const stack = wasm.pstack.pointer;
+    try {
+      const pPtr = wasm.pstack.allocPtr() /* output (sqlite3**) arg */;
+      let rc = capi.sqlite3_open_v2(fn, pPtr, oflags, vfsName || 0);
+      pDb = wasm.peekPtr(pPtr);
+      checkSqlite3Rc(pDb, rc);
+      capi.sqlite3_extended_result_codes(pDb, 1);
+      if(flagsStr.indexOf('t')>=0){
+        capi.sqlite3_trace_v2(pDb, capi.SQLITE_TRACE_STMT,
+                              __dbTraceToConsole, pDb);
+      }
+    }catch( e ){
+      if( pDb ) capi.sqlite3_close_v2(pDb);
+      throw e;
+    }finally{
+      wasm.pstack.restore(stack);
+    }
+    this.filename = fnJs;
+    __ptrMap.set(this, pDb);
+    __stmtMap.set(this, Object.create(null));
+    try{
+//#if enable-see
+      dbCtorApplySEEKey(this,opt);
+//#endif
+      // Check for per-VFS post-open SQL/callback...
+      const pVfs = capi.sqlite3_js_db_vfs(pDb)
+            || toss3("Internal error: cannot get VFS for new db handle.");
+      const postInitSql = __vfsPostOpenCallback[pVfs];
+      if(postInitSql){
+        /**
+           Reminder: if this db is encrypted and the client did _not_ pass
+           in the key, any init code will fail, causing the ctor to throw.
+           We don't actually know whether the db is encrypted, so we cannot
+           sensibly apply any heuristics which skip the init code only for
+           encrypted databases for which no key has yet been supplied.
+        */
+        if(postInitSql instanceof Function){
+          postInitSql(this, sqlite3);
+        }else{
+          checkSqlite3Rc(
+            pDb, capi.sqlite3_exec(pDb, postInitSql, 0, 0, 0)
+          );
+        }
+      }
+    }catch(e){
+      this.close();
+      throw e;
+    }
+  };
+
+  /**
+     Sets a callback which should be called after a db is opened with
+     the given sqlite3_vfs pointer. The 2nd argument must be a
+     function, which gets called with
+     (theOo1DbObject,sqlite3Namespace) at the end of the DB()
+     constructor. The function must throw on error, in which case the
+     db is closed and the exception is propagated.  This function is
+     intended only for use by DB subclasses or sqlite3_vfs
+     implementations.
+
+     Prior to 2024-07-22, it was legal to pass SQL code as the second
+     argument, but that can interfere with a client's ability to run
+     pragmas which must be run before anything else, namely (pragma
+     locking_mode=exclusive) for use with WAL mode.  That capability
+     had only ever been used as an internal detail of the two OPFS
+     VFSes, and they no longer use it that way.
+  */
+  dbCtorHelper.setVfsPostOpenCallback = function(pVfs, callback){
+    if( !(callback instanceof Function)){
+      toss3("dbCtorHelper.setVfsPostOpenCallback() should not be used with "+
+            "a non-function argument.",arguments);
+    }
+    __vfsPostOpenCallback[pVfs] = callback;
+  };
+
+  /**
+     A helper for DB constructors. It accepts either a single
+     config-style object or up to 3 arguments (filename, dbOpenFlags,
+     dbVfsName). It returns a new object containing:
+
+     { filename: ..., flags: ..., vfs: ... }
+
+     If passed an object, any additional properties it has are copied
+     as-is into the new object.
+  */
+  dbCtorHelper.normalizeArgs = function(filename=':memory:',flags = 'c',vfs = null){
+    const arg = {};
+    if(1===arguments.length && arguments[0] && 'object'===typeof arguments[0]){
+      Object.assign(arg, arguments[0]);
+      if(undefined===arg.flags) arg.flags = 'c';
+      if(undefined===arg.vfs) arg.vfs = null;
+      if(undefined===arg.filename) arg.filename = ':memory:';
+    }else{
+      arg.filename = filename;
+      arg.flags = flags;
+      arg.vfs = vfs;
+    }
+    return arg;
+  };
+  /**
+     The DB class provides a high-level OO wrapper around an sqlite3
+     db handle.
+
+     The given db filename must be resolvable using whatever
+     filesystem layer (virtual or otherwise) is set up for the default
+     sqlite3 VFS.
+
+     Note that the special sqlite3 db names ":memory:" and ""
+     (temporary db) have their normal special meanings here and need
+     not resolve to real filenames, but "" uses an on-storage
+     temporary database and requires that the VFS support that.
+
+     The second argument specifies the open/create mode for the
+     database. It must be string containing a sequence of letters (in
+     any order, but case sensitive) specifying the mode:
+
+     - "c": create if it does not exist, else fail if it does not
+       exist. Implies the "w" flag.
+
+     - "w": write. Implies "r": a db cannot be write-only.
+
+     - "r": read-only if neither "w" nor "c" are provided, else it
+       is ignored.
+
+     - "t": enable tracing of SQL executed on this database handle,
+       sending it to `console.log()`. To disable it later, call
+       `sqlite3.capi.sqlite3_trace_v2(thisDb.pointer, 0, 0, 0)`.
+
+     If "w" is not provided, the db is implicitly read-only, noting
+     that "rc" is meaningless
+
+     Any other letters are currently ignored. The default is
+     "c". These modes are ignored for the special ":memory:" and ""
+     names and _may_ be ignored altogether for certain VFSes.
+
+     The final argument is analogous to the final argument of
+     sqlite3_open_v2(): the name of an sqlite3 VFS. Pass a falsy value,
+     or none at all, to use the default. If passed a value, it must
+     be the string name of a VFS.
+
+     The constructor optionally (and preferably) takes its arguments
+     in the form of a single configuration object with the following
+     properties:
+
+     - `filename`: database file name
+     - `flags`: open-mode flags
+     - `vfs`: the VFS fname
+
+//#if enable-see
+
+     SEE-capable builds optionally support ONE of the following
+     additional options:
+
+     - `key`, `hexkey`, or `textkey`: encryption key as a string,
+       ArrayBuffer, or Uint8Array. These flags function as documented
+       for the SEE pragmas of the same names. Using a byte array for
+       `hexkey` is equivalent to the same series of hex codes in
+       string form, so `'666f6f'` is equivalent to
+       `Uint8Array([0x66,0x6f,0x6f])`. A `textkey` byte array is
+       assumed to be UTF-8. A `key` string is transformed into a UTF-8
+       byte array, and a `key` byte array is transformed into a
+       `hexkey` with the same bytes.
+
+     In non-SEE builds, these options are ignored. In SEE builds,
+     `PRAGMA key/textkey/hexkey=X` is executed immediately after
+     opening the db. If more than one of the options is provided,
+     or any option has an invalid argument type, an exception is
+     thrown.
+
+     Note that some DB subclasses may run post-initialization SQL
+     code, e.g. to set a busy-handler timeout or tweak the page cache
+     size. Such code is run _after_ the SEE key is applied. If no key
+     is supplied and the database is encrypted, execution of the
+     post-initialization SQL will fail, causing the constructor to
+     throw.
+
+//#endif enable-see
+
+     The `filename` and `vfs` arguments may be either JS strings or
+     C-strings allocated via WASM. `flags` is required to be a JS
+     string (because it's specific to this API, which is specific
+     to JS).
+
+     For purposes of passing a DB instance to C-style sqlite3
+     functions, the DB object's read-only `pointer` property holds its
+     `sqlite3*` pointer value. That property can also be used to check
+     whether this DB instance is still open: it will evaluate to
+     `undefined` after the DB object's close() method is called.
+
+     In the main window thread, the filenames `":localStorage:"` and
+     `":sessionStorage:"` are special: they cause the db to use either
+     localStorage or sessionStorage for storing the database using
+     the kvvfs. If one of these names are used, they trump
+     any vfs name set in the arguments.
+  */
+  const DB = function(...args){
+    dbCtorHelper.apply(this, args);
+  };
+  DB.dbCtorHelper = dbCtorHelper;
+
+  /**
+     Internal-use enum for mapping JS types to DB-bindable types.
+     These do not (and need not) line up with the SQLITE_type
+     values. All values in this enum must be truthy and distinct
+     but they need not be numbers.
+  */
+  const BindTypes = {
+    null: 1,
+    number: 2,
+    string: 3,
+    boolean: 4,
+    blob: 5
+  };
+  BindTypes['undefined'] == BindTypes.null;
+  if(wasm.bigIntEnabled){
+    BindTypes.bigint = BindTypes.number;
+  }
+
+  /**
+     This class wraps sqlite3_stmt. Calling this constructor
+     directly will trigger an exception. Use DB.prepare() to create
+     new instances.
+
+     For purposes of passing a Stmt instance to C-style sqlite3
+     functions, its read-only `pointer` property holds its `sqlite3_stmt*`
+     pointer value.
+
+     Other non-function properties include:
+
+     - `db`: the DB object which created the statement.
+
+     - `columnCount`: the number of result columns in the query, or 0
+     for queries which cannot return results. This property is a proxy
+     for sqlite3_column_count() and its use in loops should be avoided
+     because of the call overhead associated with that. The
+     `columnCount` is not cached when the Stmt is created because a
+     schema change made via a separate db connection between this
+     statement's preparation and when it is stepped may invalidate it.
+
+     - `parameterCount`: the number of bindable parameters in the query.
+
+     As a general rule, most methods of this class will throw if
+     called on an instance which has been finalized. For brevity's
+     sake, the method docs do not all repeat this warning.
+  */
+  const Stmt = function(){
+    if(BindTypes!==arguments[2]){
+      toss3(capi.SQLITE_MISUSE, "Do not call the Stmt constructor directly. Use DB.prepare().");
+    }
+    this.db = arguments[0];
+    __ptrMap.set(this, arguments[1]);
+    this.parameterCount = capi.sqlite3_bind_parameter_count(this.pointer);
+  };
+
+  /** Throws if the given DB has been closed, else it is returned. */
+  const affirmDbOpen = function(db){
+    if(!db.pointer) toss3("DB has been closed.");
+    return db;
+  };
+
+  /** Throws if ndx is not an integer or if it is out of range
+      for stmt.columnCount, else returns stmt.
+
+      Reminder: this will also fail after the statement is finalized
+      but the resulting error will be about an out-of-bounds column
+      index rather than a statement-is-finalized error.
+  */
+  const affirmColIndex = function(stmt,ndx){
+    if((ndx !== (ndx|0)) || ndx<0 || ndx>=stmt.columnCount){
+      toss3("Column index",ndx,"is out of range.");
+    }
+    return stmt;
+  };
+
+  /**
+     Expects to be passed the `arguments` object from DB.exec(). Does
+     the argument processing/validation, throws on error, and returns
+     a new object on success:
+
+     { sql: the SQL, opt: optionsObj, cbArg: function}
+
+     The opt object is a normalized copy of any passed to this
+     function. The sql will be converted to a string if it is provided
+     in one of the supported non-string formats.
+
+     cbArg is only set if the opt.callback or opt.resultRows are set,
+     in which case it's a function which expects to be passed the
+     current Stmt and returns the callback argument of the type
+     indicated by the input arguments.
+  */
+  const parseExecArgs = function(db, args){
+    const out = Object.create(null);
+    out.opt = Object.create(null);
+    switch(args.length){
+        case 1:
+          if('string'===typeof args[0] || util.isSQLableTypedArray(args[0])){
+            out.sql = args[0];
+          }else if(Array.isArray(args[0])){
+            out.sql = args[0];
+          }else if(args[0] && 'object'===typeof args[0]){
+            out.opt = args[0];
+            out.sql = out.opt.sql;
+          }
+          break;
+        case 2:
+          out.sql = args[0];
+          out.opt = args[1];
+          break;
+        default: toss3("Invalid argument count for exec().");
+    };
+    out.sql = util.flexibleString(out.sql);
+    if('string'!==typeof out.sql){
+      toss3("Missing SQL argument or unsupported SQL value type.");
+    }
+    const opt = out.opt;
+    switch(opt.returnValue){
+        case 'resultRows':
+          if(!opt.resultRows) opt.resultRows = [];
+          out.returnVal = ()=>opt.resultRows;
+          break;
+        case 'saveSql':
+          if(!opt.saveSql) opt.saveSql = [];
+          out.returnVal = ()=>opt.saveSql;
+          break;
+        case undefined:
+        case 'this':
+          out.returnVal = ()=>db;
+          break;
+        default:
+          toss3("Invalid returnValue value:",opt.returnValue);
+    }
+    if(!opt.callback && !opt.returnValue && undefined!==opt.rowMode){
+      if(!opt.resultRows) opt.resultRows = [];
+      out.returnVal = ()=>opt.resultRows;
+    }
+    if(opt.callback || opt.resultRows){
+      switch((undefined===opt.rowMode) ? 'array' : opt.rowMode) {
+        case 'object':
+          out.cbArg = (stmt,cache)=>{
+            if( !cache.columnNames ) cache.columnNames = stmt.getColumnNames([]);
+            /* https://sqlite.org/forum/forumpost/3632183d2470617d:
+               conversion of rows to objects (key/val pairs) is
+               somewhat expensive for large data sets because of the
+               native-to-JS conversion of the column names. If we
+               instead cache the names and build objects from that
+               list of strings, it can run twice as fast. The
+               difference is not noticeable for small data sets but
+               becomes human-perceivable when enough rows are
+               involved. */
+            const row = stmt.get([]);
+            const rv = Object.create(null);
+            for( const i in cache.columnNames ) rv[cache.columnNames[i]] = row[i];
+            return rv;
+          };
+          break;
+        case 'array': out.cbArg = (stmt)=>stmt.get([]); break;
+        case 'stmt':
+          if(Array.isArray(opt.resultRows)){
+            toss3("exec(): invalid rowMode for a resultRows array: must",
+                  "be one of 'array', 'object',",
+                  "a result column number, or column name reference.");
+          }
+          out.cbArg = (stmt)=>stmt;
+          break;
+        default:
+          if(util.isInt32(opt.rowMode)){
+            out.cbArg = (stmt)=>stmt.get(opt.rowMode);
+            break;
+          }else if('string'===typeof opt.rowMode
+                   && opt.rowMode.length>1
+                   && '$'===opt.rowMode[0]){
+            /* "$X": fetch column named "X" (case-sensitive!). Prior
+               to 2022-12-14 ":X" and "@X" were also permitted, but
+               having so many options is unnecessary and likely to
+               cause confusion. */
+            const $colName = opt.rowMode.substr(1);
+            out.cbArg = (stmt)=>{
+              const rc = stmt.get(Object.create(null))[$colName];
+              return (undefined===rc)
+                ? toss3(capi.SQLITE_NOTFOUND,
+                        "exec(): unknown result column:",$colName)
+                : rc;
+            };
+            break;
+          }
+          toss3("Invalid rowMode:",opt.rowMode);
+      }
+    }
+    return out;
+  };
+
+  /**
+     Internal impl of the DB.selectValue(), selectArray(), and
+     selectObject() methods.
+  */
+  const __selectFirstRow = (db, sql, bind, ...getArgs)=>{
+    const stmt = db.prepare(sql);
+    try {
+      const rc = stmt.bind(bind).step() ? stmt.get(...getArgs) : undefined;
+      stmt.reset(/*for INSERT...RETURNING locking case*/);
+      return rc;
+    }finally{
+      stmt.finalize();
+    }
+  };
+
+  /**
+     Internal impl of the DB.selectArrays() and selectObjects()
+     methods.
+  */
+  const __selectAll =
+        (db, sql, bind, rowMode)=>db.exec({
+          sql, bind, rowMode, returnValue: 'resultRows'
+        });
+
+  /**
+     Expects to be given a DB instance or an `sqlite3*` pointer (may
+     be null) and an sqlite3 API result code. If the result code is
+     not falsy, this function throws an SQLite3Error with an error
+     message from sqlite3_errmsg(), using db (or, if db is-a DB,
+     db.pointer) as the db handle, or sqlite3_errstr() if db is
+     falsy. Note that if it's passed a non-error code like SQLITE_ROW
+     or SQLITE_DONE, it will still throw but the error string might be
+     "Not an error."  The various non-0 non-error codes need to be
+     checked for in client code where they are expected.
+
+     The thrown exception's `resultCode` property will be the value of
+     the second argument to this function.
+
+     If it does not throw, it returns its first argument.
+  */
+  DB.checkRc = (db,resultCode)=>checkSqlite3Rc(db,resultCode);
+
+  DB.prototype = {
+    /** Returns true if this db handle is open, else false. */
+    isOpen: function(){
+      return !!this.pointer;
+    },
+    /** Throws if this given DB has been closed, else returns `this`. */
+    affirmOpen: function(){
+      return affirmDbOpen(this);
+    },
+    /**
+       Finalizes all open statements and closes this database
+       connection. This is a no-op if the db has already been
+       closed. After calling close(), `this.pointer` will resolve to
+       `undefined`, so that can be used to check whether the db
+       instance is still opened.
+
+       If this.onclose.before is a function then it is called before
+       any close-related cleanup.
+
+       If this.onclose.after is a function then it is called after the
+       db is closed but before auxiliary state like this.filename is
+       cleared.
+
+       Both onclose handlers are passed this object, with the onclose
+       object as their "this," noting that the db will have been
+       closed when onclose.after is called. If this db is not opened
+       when close() is called, neither of the handlers are called. Any
+       exceptions the handlers throw are ignored because "destructors
+       must not throw."
+
+       Note that garbage collection of a db handle, if it happens at
+       all, will never trigger close(), so onclose handlers are not a
+       reliable way to implement close-time cleanup or maintenance of
+       a db.
+    */
+    close: function(){
+      if(this.pointer){
+        if(this.onclose && (this.onclose.before instanceof Function)){
+          try{this.onclose.before(this)}
+          catch(e){/*ignore*/}
+        }
+        const pDb = this.pointer;
+        Object.keys(__stmtMap.get(this)).forEach((k,s)=>{
+          if(s && s.pointer){
+            try{s.finalize()}
+            catch(e){/*ignore*/}
+          }
+        });
+        __ptrMap.delete(this);
+        __stmtMap.delete(this);
+        capi.sqlite3_close_v2(pDb);
+        if(this.onclose && (this.onclose.after instanceof Function)){
+          try{this.onclose.after(this)}
+          catch(e){/*ignore*/}
+        }
+        delete this.filename;
+      }
+    },
+    /**
+       Returns the number of changes, as per sqlite3_changes()
+       (if the first argument is false) or sqlite3_total_changes()
+       (if it's true). If the 2nd argument is true, it uses
+       sqlite3_changes64() or sqlite3_total_changes64(), which
+       will trigger an exception if this build does not have
+       BigInt support enabled.
+    */
+    changes: function(total=false,sixtyFour=false){
+      const p = affirmDbOpen(this).pointer;
+      if(total){
+        return sixtyFour
+          ? capi.sqlite3_total_changes64(p)
+          : capi.sqlite3_total_changes(p);
+      }else{
+        return sixtyFour
+          ? capi.sqlite3_changes64(p)
+          : capi.sqlite3_changes(p);
+      }
+    },
+    /**
+       Similar to the this.filename but returns the
+       sqlite3_db_filename() value for the given database name,
+       defaulting to "main".  The argument may be either a JS string
+       or a pointer to a WASM-allocated C-string.
+    */
+    dbFilename: function(dbName='main'){
+      return capi.sqlite3_db_filename(affirmDbOpen(this).pointer, dbName);
+    },
+    /**
+       Returns the name of the given 0-based db number, as documented
+       for sqlite3_db_name().
+    */
+    dbName: function(dbNumber=0){
+      return capi.sqlite3_db_name(affirmDbOpen(this).pointer, dbNumber);
+    },
+    /**
+       Returns the name of the sqlite3_vfs used by the given database
+       of this connection (defaulting to 'main'). The argument may be
+       either a JS string or a WASM C-string. Returns undefined if the
+       given db name is invalid. Throws if this object has been
+       close()d.
+    */
+    dbVfsName: function(dbName=0){
+      let rc;
+      const pVfs = capi.sqlite3_js_db_vfs(
+        affirmDbOpen(this).pointer, dbName
+      );
+      if(pVfs){
+        const v = new capi.sqlite3_vfs(pVfs);
+        try{ rc = wasm.cstrToJs(v.$zName) }
+        finally { v.dispose() }
+      }
+      return rc;
+    },
+    /**
+       Compiles the given SQL and returns a prepared Stmt. This is
+       the only way to create new Stmt objects. Throws on error.
+
+       The given SQL must be a string, a Uint8Array holding SQL, a
+       WASM pointer to memory holding the NUL-terminated SQL string,
+       or an array of strings. In the latter case, the array is
+       concatenated together, with no separators, to form the SQL
+       string (arrays are often a convenient way to formulate long
+       statements).  If the SQL contains no statements, an
+       SQLite3Error is thrown.
+
+       Design note: the C API permits empty SQL, reporting it as a 0
+       result code and a NULL stmt pointer. Supporting that case here
+       would cause extra work for all clients: any use of the Stmt API
+       on such a statement will necessarily throw, so clients would be
+       required to check `stmt.pointer` after calling `prepare()` in
+       order to determine whether the Stmt instance is empty or not.
+       Long-time practice (with other sqlite3 script bindings)
+       suggests that the empty-prepare case is sufficiently rare that
+       supporting it here would simply hurt overall usability.
+    */
+    prepare: function(sql){
+      affirmDbOpen(this);
+      const stack = wasm.pstack.pointer;
+      let ppStmt, pStmt;
+      try{
+        ppStmt = wasm.pstack.alloc(8)/* output (sqlite3_stmt**) arg */;
+        DB.checkRc(this, capi.sqlite3_prepare_v2(this.pointer, sql, -1, ppStmt, null));
+        pStmt = wasm.peekPtr(ppStmt);
+      }
+      finally {
+        wasm.pstack.restore(stack);
+      }
+      if(!pStmt) toss3("Cannot prepare empty SQL.");
+      const stmt = new Stmt(this, pStmt, BindTypes);
+      __stmtMap.get(this)[pStmt] = stmt;
+      return stmt;
+    },
+    /**
+       Executes one or more SQL statements in the form of a single
+       string. Its arguments must be either (sql,optionsObject) or
+       (optionsObject). In the latter case, optionsObject.sql must
+       contain the SQL to execute. By default it returns this object
+       but that can be changed via the `returnValue` option as
+       described below. Throws on error.
+
+       If no SQL is provided, or a non-string is provided, an
+       exception is triggered. Empty SQL, on the other hand, is
+       simply a no-op.
+
+       The optional options object may contain any of the following
+       properties:
+
+       - `sql` = the SQL to run (unless it's provided as the first
+       argument). This must be of type string, Uint8Array, or an array
+       of strings. In the latter case they're concatenated together
+       as-is, _with no separator_ between elements, before evaluation.
+       The array form is often simpler for long hand-written queries.
+
+       - `bind` = a single value valid as an argument for
+       Stmt.bind(). This is _only_ applied to the _first_ non-empty
+       statement in the SQL which has any bindable parameters. (Empty
+       statements are skipped entirely.)
+
+       - `saveSql` = an optional array. If set, the SQL of each
+       executed statement is appended to this array before the
+       statement is executed (but after it is prepared - we don't have
+       the string until after that). Empty SQL statements are elided
+       but can have odd effects in the output. e.g. SQL of: `"select
+       1; -- empty\n; select 2"` will result in an array containing
+       `["select 1;", "--empty \n; select 2"]`. That's simply how
+       sqlite3 records the SQL for the 2nd statement.
+
+       ==================================================================
+       The following options apply _only_ to the _first_ statement
+       which has a non-zero result column count, regardless of whether
+       the statement actually produces any result rows.
+       ==================================================================
+
+       - `columnNames`: if this is an array, the column names of the
+       result set are stored in this array before the callback (if
+       any) is triggered (regardless of whether the query produces any
+       result rows). If no statement has result columns, this value is
+       unchanged. Achtung: an SQL result may have multiple columns
+       with identical names.
+
+       - `callback` = a function which gets called for each row of the
+       result set, but only if that statement has any result rows. The
+       callback's "this" is the options object, noting that this
+       function synthesizes one if the caller does not pass one to
+       exec(). The second argument passed to the callback is always
+       the current Stmt object, as it's needed if the caller wants to
+       fetch the column names or some such (noting that they could
+       also be fetched via `this.columnNames`, if the client provides
+       the `columnNames` option). If the callback returns a literal
+       `false` (as opposed to any other falsy value, e.g. an implicit
+       `undefined` return), any ongoing statement-`step()` iteration
+       stops without an error. The return value of the callback is
+       otherwise ignored.
+
+       ACHTUNG: The callback MUST NOT modify the Stmt object. Calling
+       any of the Stmt.get() variants, Stmt.getColumnName(), or
+       similar, is legal, but calling step() or finalize() is
+       not. Member methods which are illegal in this context will
+       trigger an exception, but clients must also refrain from using
+       any lower-level (C-style) APIs which might modify the
+       statement.
+
+       The first argument passed to the callback defaults to an array of
+       values from the current result row but may be changed with ...
+
+       - `rowMode` = specifies the type of he callback's first argument.
+       It may be any of...
+
+       A) A string describing what type of argument should be passed
+       as the first argument to the callback:
+
+         A.1) `'array'` (the default) causes the results of
+         `stmt.get([])` to be passed to the `callback` and/or appended
+         to `resultRows`.
+
+         A.2) `'object'` causes the results of
+         `stmt.get(Object.create(null))` to be passed to the
+         `callback` and/or appended to `resultRows`.  Achtung: an SQL
+         result may have multiple columns with identical names. In
+         that case, the right-most column will be the one set in this
+         object!
+
+         A.3) `'stmt'` causes the current Stmt to be passed to the
+         callback, but this mode will trigger an exception if
+         `resultRows` is an array because appending the transient
+         statement to the array would be downright unhelpful.
+
+       B) An integer, indicating a zero-based column in the result
+       row. Only that one single value will be passed on.
+
+       C) A string with a minimum length of 2 and leading character of
+       '$' will fetch the row as an object, extract that one field,
+       and pass that field's value to the callback. Note that these
+       keys are case-sensitive so must match the case used in the
+       SQL. e.g. `"select a A from t"` with a `rowMode` of `'$A'`
+       would work but `'$a'` would not. A reference to a column not in
+       the result set will trigger an exception on the first row (as
+       the check is not performed until rows are fetched).  Note also
+       that `$` is a legal identifier character in JS so need not be
+       quoted.
+
+       Any other `rowMode` value triggers an exception.
+
+       - `resultRows`: if this is an array, it functions similarly to
+       the `callback` option: each row of the result set (if any),
+       with the exception that the `rowMode` 'stmt' is not legal. It
+       is legal to use both `resultRows` and `callback`, but
+       `resultRows` is likely much simpler to use for small data sets
+       and can be used over a WebWorker-style message interface.
+       exec() throws if `resultRows` is set and `rowMode` is 'stmt'.
+
+       - `returnValue`: is a string specifying what this function
+       should return:
+
+         A) The default value is (usually) `"this"`, meaning that the
+            DB object itself should be returned. The exception is if
+            the caller passes neither of `callback` nor `returnValue`
+            but does pass an explicit `rowMode` then the default
+            `returnValue` is `"resultRows"`, described below.
+
+         B) `"resultRows"` means to return the value of the
+            `resultRows` option. If `resultRows` is not set, this
+            function behaves as if it were set to an empty array.
+
+         C) `"saveSql"` means to return the value of the
+            `saveSql` option. If `saveSql` is not set, this
+            function behaves as if it were set to an empty array.
+
+       Potential TODOs:
+
+       - `bind`: permit an array of arrays/objects to bind. The first
+       sub-array would act on the first statement which has bindable
+       parameters (as it does now). The 2nd would act on the next such
+       statement, etc.
+
+       - `callback` and `resultRows`: permit an array entries with
+       semantics similar to those described for `bind` above.
+
+    */
+    exec: function(/*(sql [,obj]) || (obj)*/){
+      affirmDbOpen(this);
+      const arg = parseExecArgs(this, arguments);
+      if(!arg.sql){
+        return toss3("exec() requires an SQL string.");
+      }
+      const opt = arg.opt;
+      const callback = opt.callback;
+      const resultRows =
+            Array.isArray(opt.resultRows) ? opt.resultRows : undefined;
+      let stmt;
+      let bind = opt.bind;
+      let evalFirstResult = !!(
+        arg.cbArg || opt.columnNames || resultRows
+      ) /* true to step through the first result-returning statement */;
+      const stack = wasm.scopedAllocPush();
+      const saveSql = Array.isArray(opt.saveSql) ? opt.saveSql : undefined;
+      try{
+        const isTA = util.isSQLableTypedArray(arg.sql)
+        /* Optimization: if the SQL is a TypedArray we can save some string
+           conversion costs. */;
+        /* Allocate the two output pointers (ppStmt, pzTail) and heap
+           space for the SQL (pSql). When prepare_v2() returns, pzTail
+           will point to somewhere in pSql. */
+        let sqlByteLen = isTA ? arg.sql.byteLength : wasm.jstrlen(arg.sql);
+        const ppStmt  = wasm.scopedAlloc(
+          /* output (sqlite3_stmt**) arg and pzTail */
+          (2 * wasm.ptrSizeof) + (sqlByteLen + 1/* SQL + NUL */)
+        );
+        const pzTail = ppStmt + wasm.ptrSizeof /* final arg to sqlite3_prepare_v2() */;
+        let pSql = pzTail + wasm.ptrSizeof;
+        const pSqlEnd = pSql + sqlByteLen;
+        if(isTA) wasm.heap8().set(arg.sql, pSql);
+        else wasm.jstrcpy(arg.sql, wasm.heap8(), pSql, sqlByteLen, false);
+        wasm.poke(pSql + sqlByteLen, 0/*NUL terminator*/);
+        while(pSql && wasm.peek(pSql, 'i8')
+              /* Maintenance reminder:^^^ _must_ be 'i8' or else we
+                 will very likely cause an endless loop. What that's
+                 doing is checking for a terminating NUL byte. If we
+                 use i32 or similar then we read 4 bytes, read stuff
+                 around the NUL terminator, and get stuck in and
+                 endless loop at the end of the SQL, endlessly
+                 re-preparing an empty statement. */ ){
+          wasm.pokePtr([ppStmt, pzTail], 0);
+          DB.checkRc(this, capi.sqlite3_prepare_v3(
+            this.pointer, pSql, sqlByteLen, 0, ppStmt, pzTail
+          ));
+          const pStmt = wasm.peekPtr(ppStmt);
+          pSql = wasm.peekPtr(pzTail);
+          sqlByteLen = pSqlEnd - pSql;
+          if(!pStmt) continue;
+          if(saveSql) saveSql.push(capi.sqlite3_sql(pStmt).trim());
+          stmt = new Stmt(this, pStmt, BindTypes);
+          if(bind && stmt.parameterCount){
+            stmt.bind(bind);
+            bind = null;
+          }
+          if(evalFirstResult && stmt.columnCount){
+            /* Only forward SELECT-style results for the FIRST query
+               in the SQL which potentially has them. */
+            let gotColNames = Array.isArray(
+              opt.columnNames
+              /* As reported in
+                 https://sqlite.org/forum/forumpost/7774b773937cbe0a
+                 we need to delay fetching of the column names until
+                 after the first step() (if we step() at all) because
+                 a schema change between the prepare() and step(), via
+                 another connection, may invalidate the column count
+                 and names. */) ? 0 : 1;
+            evalFirstResult = false;
+            if(arg.cbArg || resultRows){
+              const cbArgCache = Object.create(null)
+              /* 2nd arg for arg.cbArg, used by (at least) row-to-object
+                 converter */;
+              for(; stmt.step(); stmt._lockedByExec = false){
+                if(0===gotColNames++){
+                  stmt.getColumnNames(cbArgCache.columnNames = (opt.columnNames || []));
+                }
+                stmt._lockedByExec = true;
+                const row = arg.cbArg(stmt,cbArgCache);
+                if(resultRows) resultRows.push(row);
+                if(callback && false === callback.call(opt, row, stmt)){
+                  break;
+                }
+              }
+              stmt._lockedByExec = false;
+            }
+            if(0===gotColNames){
+              /* opt.columnNames was provided but we visited no result rows */
+              stmt.getColumnNames(opt.columnNames);
+            }
+          }else{
+            stmt.step();
+          }
+          stmt.reset(
+            /* In order to trigger an exception in the
+               INSERT...RETURNING locking scenario:
+               https://sqlite.org/forum/forumpost/36f7a2e7494897df
+            */).finalize();
+          stmt = null;
+        }/*prepare() loop*/
+      }/*catch(e){
+        sqlite3.config.warn("DB.exec() is propagating exception",opt,e);
+        throw e;
+      }*/finally{
+        wasm.scopedAllocPop(stack);
+        if(stmt){
+          delete stmt._lockedByExec;
+          stmt.finalize();
+        }
+      }
+      return arg.returnVal();
+    }/*exec()*/,
+
+    /**
+       Creates a new UDF (User-Defined Function) which is accessible
+       via SQL code. This function may be called in any of the
+       following forms:
+
+       - (name, function)
+       - (name, function, optionsObject)
+       - (name, optionsObject)
+       - (optionsObject)
+
+       In the final two cases, the function must be defined as the
+       `callback` property of the options object (optionally called
+       `xFunc` to align with the C API documentation). In the final
+       case, the function's name must be the 'name' property.
+
+       The first two call forms can only be used for creating scalar
+       functions. Creating an aggregate or window function requires
+       the options-object form (see below for details).
+
+       UDFs can be removed as documented for
+       sqlite3_create_function_v2() and
+       sqlite3_create_window_function(), but doing so will "leak" the
+       JS-created WASM binding of those functions (meaning that their
+       entries in the WASM indirect function table still
+       exist). Eliminating that potential leak is a pending TODO.
+
+       On success, returns this object. Throws on error.
+
+       When called from SQL arguments to the UDF, and its result,
+       will be converted between JS and SQL with as much fidelity as
+       is feasible, triggering an exception if a type conversion
+       cannot be determined. The docs for sqlite3_create_function_v2()
+       describe the conversions in more detail.
+
+       The values set in the options object differ for scalar and
+       aggregate functions:
+
+       - Scalar: set the `xFunc` function-type property to the UDF
+         function.
+
+       - Aggregate: set the `xStep` and `xFinal` function-type
+         properties to the "step" and "final" callbacks for the
+         aggregate. Do not set the `xFunc` property.
+
+       - Window: set the `xStep`, `xFinal`, `xValue`, and `xInverse`
+         function-type properties. Do not set the `xFunc` property.
+
+       The options object may optionally have an `xDestroy`
+       function-type property, as per sqlite3_create_function_v2().
+       Its argument will be the WASM-pointer-type value of the `pApp`
+       property, and this function will throw if `pApp` is defined but
+       is not null, undefined, or a numeric (WASM pointer)
+       value. i.e. `pApp`, if set, must be value suitable for use as a
+       WASM pointer argument, noting that `null` or `undefined` will
+       translate to 0 for that purpose.
+
+       The options object may contain flags to modify how
+       the function is defined:
+
+       - `arity`: the number of arguments which SQL calls to this
+       function expect or require. The default value is `xFunc.length`
+       or `xStep.length` (i.e. the number of declared parameters it
+       has) **MINUS 1** (see below for why). As a special case, if the
+       `length` is 0, its arity is also 0 instead of -1. A negative
+       arity value means that the function is variadic and may accept
+       any number of arguments, up to sqlite3's compile-time
+       limits. sqlite3 will enforce the argument count if is zero or
+       greater. The callback always receives a pointer to an
+       `sqlite3_context` object as its first argument. Any arguments
+       after that are from SQL code. The leading context argument does
+       _not_ count towards the function's arity. See the docs for
+       sqlite3.capi.sqlite3_create_function_v2() for why that argument
+       is needed in the interface.
+
+       The following options-object properties correspond to flags
+       documented at:
+
+       https://sqlite.org/c3ref/create_function.html
+
+       - `deterministic` = sqlite3.capi.SQLITE_DETERMINISTIC
+       - `directOnly` = sqlite3.capi.SQLITE_DIRECTONLY
+       - `innocuous` = sqlite3.capi.SQLITE_INNOCUOUS
+
+       Sidebar: the ability to add new WASM-accessible functions to
+       the runtime requires that the WASM build is compiled with the
+       equivalent functionality as that provided by Emscripten's
+       `-sALLOW_TABLE_GROWTH` flag.
+    */
+    createFunction: function f(name, xFunc, opt){
+      const isFunc = (f)=>(f instanceof Function);
+      switch(arguments.length){
+          case 1: /* (optionsObject) */
+            opt = name;
+            name = opt.name;
+            xFunc = opt.xFunc || 0;
+            break;
+          case 2: /* (name, callback|optionsObject) */
+            if(!isFunc(xFunc)){
+              opt = xFunc;
+              xFunc = opt.xFunc || 0;
+            }
+            break;
+          case 3: /* name, xFunc, opt */
+            break;
+          default: break;
+      }
+      if(!opt) opt = {};
+      if('string' !== typeof name){
+        toss3("Invalid arguments: missing function name.");
+      }
+      let xStep = opt.xStep || 0;
+      let xFinal = opt.xFinal || 0;
+      const xValue = opt.xValue || 0;
+      const xInverse = opt.xInverse || 0;
+      let isWindow = undefined;
+      if(isFunc(xFunc)){
+        isWindow = false;
+        if(isFunc(xStep) || isFunc(xFinal)){
+          toss3("Ambiguous arguments: scalar or aggregate?");
+        }
+        xStep = xFinal = null;
+      }else if(isFunc(xStep)){
+        if(!isFunc(xFinal)){
+          toss3("Missing xFinal() callback for aggregate or window UDF.");
+        }
+        xFunc = null;
+      }else if(isFunc(xFinal)){
+        toss3("Missing xStep() callback for aggregate or window UDF.");
+      }else{
+        toss3("Missing function-type properties.");
+      }
+      if(false === isWindow){
+        if(isFunc(xValue) || isFunc(xInverse)){
+          toss3("xValue and xInverse are not permitted for non-window UDFs.");
+        }
+      }else if(isFunc(xValue)){
+        if(!isFunc(xInverse)){
+          toss3("xInverse must be provided if xValue is.");
+        }
+        isWindow = true;
+      }else if(isFunc(xInverse)){
+        toss3("xValue must be provided if xInverse is.");
+      }
+      const pApp = opt.pApp;
+      if(undefined!==pApp &&
+         null!==pApp &&
+         (('number'!==typeof pApp) || !util.isInt32(pApp))){
+        toss3("Invalid value for pApp property. Must be a legal WASM pointer value.");
+      }
+      const xDestroy = opt.xDestroy || 0;
+      if(xDestroy && !isFunc(xDestroy)){
+        toss3("xDestroy property must be a function.");
+      }
+      let fFlags = 0 /*flags for sqlite3_create_function_v2()*/;
+      if(getOwnOption(opt, 'deterministic')) fFlags |= capi.SQLITE_DETERMINISTIC;
+      if(getOwnOption(opt, 'directOnly')) fFlags |= capi.SQLITE_DIRECTONLY;
+      if(getOwnOption(opt, 'innocuous')) fFlags |= capi.SQLITE_INNOCUOUS;
+      name = name.toLowerCase();
+      const xArity = xFunc || xStep;
+      const arity = getOwnOption(opt, 'arity');
+      const arityArg = ('number'===typeof arity
+                        ? arity
+                        : (xArity.length ? xArity.length-1/*for pCtx arg*/ : 0));
+      let rc;
+      if( isWindow ){
+        rc = capi.sqlite3_create_window_function(
+          this.pointer, name, arityArg,
+          capi.SQLITE_UTF8 | fFlags, pApp || 0,
+          xStep, xFinal, xValue, xInverse, xDestroy);
+      }else{
+        rc = capi.sqlite3_create_function_v2(
+          this.pointer, name, arityArg,
+          capi.SQLITE_UTF8 | fFlags, pApp || 0,
+          xFunc, xStep, xFinal, xDestroy);
+      }
+      DB.checkRc(this, rc);
+      return this;
+    }/*createFunction()*/,
+    /**
+       Prepares the given SQL, step()s it one time, and returns
+       the value of the first result column. If it has no results,
+       undefined is returned.
+
+       If passed a second argument, it is treated like an argument
+       to Stmt.bind(), so may be any type supported by that
+       function. Passing the undefined value is the same as passing
+       no value, which is useful when...
+
+       If passed a 3rd argument, it is expected to be one of the
+       SQLITE_{typename} constants. Passing the undefined value is
+       the same as not passing a value.
+
+       Throws on error (e.g. malformed SQL).
+    */
+    selectValue: function(sql,bind,asType){
+      return __selectFirstRow(this, sql, bind, 0, asType);
+    },
+
+    /**
+       Runs the given query and returns an array of the values from
+       the first result column of each row of the result set. The 2nd
+       argument is an optional value for use in a single-argument call
+       to Stmt.bind(). The 3rd argument may be any value suitable for
+       use as the 2nd argument to Stmt.get(). If a 3rd argument is
+       desired but no bind data are needed, pass `undefined` for the 2nd
+       argument.
+
+       If there are no result rows, an empty array is returned.
+    */
+    selectValues: function(sql,bind,asType){
+      const stmt = this.prepare(sql), rc = [];
+      try {
+        stmt.bind(bind);
+        while(stmt.step()) rc.push(stmt.get(0,asType));
+        stmt.reset(/*for INSERT...RETURNING locking case*/);
+      }finally{
+        stmt.finalize();
+      }
+      return rc;
+    },
+
+    /**
+       Prepares the given SQL, step()s it one time, and returns an
+       array containing the values of the first result row. If it has
+       no results, `undefined` is returned.
+
+       If passed a second argument other than `undefined`, it is
+       treated like an argument to Stmt.bind(), so may be any type
+       supported by that function.
+
+       Throws on error (e.g. malformed SQL).
+    */
+    selectArray: function(sql,bind){
+      return __selectFirstRow(this, sql, bind, []);
+    },
+
+    /**
+       Prepares the given SQL, step()s it one time, and returns an
+       object containing the key/value pairs of the first result
+       row. If it has no results, `undefined` is returned.
+
+       Note that the order of returned object's keys is not guaranteed
+       to be the same as the order of the fields in the query string.
+
+       If passed a second argument other than `undefined`, it is
+       treated like an argument to Stmt.bind(), so may be any type
+       supported by that function.
+
+       Throws on error (e.g. malformed SQL).
+    */
+    selectObject: function(sql,bind){
+      return __selectFirstRow(this, sql, bind, {});
+    },
+
+    /**
+       Runs the given SQL and returns an array of all results, with
+       each row represented as an array, as per the 'array' `rowMode`
+       option to `exec()`. An empty result set resolves
+       to an empty array. The second argument, if any, is treated as
+       the 'bind' option to a call to exec().
+    */
+    selectArrays: function(sql,bind){
+      return __selectAll(this, sql, bind, 'array');
+    },
+
+    /**
+       Works identically to selectArrays() except that each value
+       in the returned array is an object, as per the 'object' `rowMode`
+       option to `exec()`.
+    */
+    selectObjects: function(sql,bind){
+      return __selectAll(this, sql, bind, 'object');
+    },
+
+    /**
+       Returns the number of currently-opened Stmt handles for this db
+       handle, or 0 if this DB instance is closed. Note that only
+       handles prepared via this.prepare() are counted, and not
+       handles prepared using capi.sqlite3_prepare_v3() (or
+       equivalent).
+    */
+    openStatementCount: function(){
+      return this.pointer ? Object.keys(__stmtMap.get(this)).length : 0;
+    },
+
+    /**
+       Starts a transaction, calls the given callback, and then either
+       rolls back or commits the savepoint, depending on whether the
+       callback throws. The callback is passed this db object as its
+       only argument. On success, returns the result of the
+       callback. Throws on error.
+
+       Note that transactions may not be nested, so this will throw if
+       it is called recursively. For nested transactions, use the
+       savepoint() method or manually manage SAVEPOINTs using exec().
+
+       If called with 2 arguments, the first must be a keyword which
+       is legal immediately after a BEGIN statement, e.g. one of
+       "DEFERRED", "IMMEDIATE", or "EXCLUSIVE". Though the exact list
+       of supported keywords is not hard-coded here, in order to be
+       future-compatible, if the argument does not look like a single
+       keyword then an exception is triggered with a description of
+       the problem.
+     */
+    transaction: function(/* [beginQualifier,] */callback){
+      let opener = 'BEGIN';
+      if(arguments.length>1){
+        if(/[^a-zA-Z]/.test(arguments[0])){
+          toss3(capi.SQLITE_MISUSE, "Invalid argument for BEGIN qualifier.");
+        }
+        opener += ' '+arguments[0];
+        callback = arguments[1];
+      }
+      affirmDbOpen(this).exec(opener);
+      try {
+        const rc = callback(this);
+        this.exec("COMMIT");
+        return rc;
+      }catch(e){
+        this.exec("ROLLBACK");
+        throw e;
+      }
+    },
+
+    /**
+       This works similarly to transaction() but uses sqlite3's SAVEPOINT
+       feature. This function starts a savepoint (with an unspecified name)
+       and calls the given callback function, passing it this db object.
+       If the callback returns, the savepoint is released (committed). If
+       the callback throws, the savepoint is rolled back. If it does not
+       throw, it returns the result of the callback.
+    */
+    savepoint: function(callback){
+      affirmDbOpen(this).exec("SAVEPOINT oo1");
+      try {
+        const rc = callback(this);
+        this.exec("RELEASE oo1");
+        return rc;
+      }catch(e){
+        this.exec("ROLLBACK to SAVEPOINT oo1; RELEASE SAVEPOINT oo1");
+        throw e;
+      }
+    },
+
+    /**
+       A convenience form of DB.checkRc(this,resultCode). If it does
+       not throw, it returns this object.
+    */
+    checkRc: function(resultCode){
+      return checkSqlite3Rc(this, resultCode);
+    }
+  }/*DB.prototype*/;
+
+
+  /** Throws if the given Stmt has been finalized, else stmt is
+      returned. */
+  const affirmStmtOpen = function(stmt){
+    if(!stmt.pointer) toss3("Stmt has been closed.");
+    return stmt;
+  };
+
+  /** Returns an opaque truthy value from the BindTypes
+      enum if v's type is a valid bindable type, else
+      returns a falsy value. As a special case, a value of
+      undefined is treated as a bind type of null. */
+  const isSupportedBindType = function(v){
+    let t = BindTypes[(null===v||undefined===v) ? 'null' : typeof v];
+    switch(t){
+        case BindTypes.boolean:
+        case BindTypes.null:
+        case BindTypes.number:
+        case BindTypes.string:
+          return t;
+        case BindTypes.bigint:
+          if(wasm.bigIntEnabled) return t;
+          /* else fall through */
+        default:
+          return util.isBindableTypedArray(v) ? BindTypes.blob : undefined;
+    }
+  };
+
+  /**
+     If isSupportedBindType(v) returns a truthy value, this
+     function returns that value, else it throws.
+  */
+  const affirmSupportedBindType = function(v){
+    //sqlite3.config.log('affirmSupportedBindType',v);
+    return isSupportedBindType(v) || toss3("Unsupported bind() argument type:",typeof v);
+  };
+
+  /**
+     If key is a number and within range of stmt's bound parameter
+     count, key is returned.
+
+     If key is not a number then it is checked against named
+     parameters. If a match is found, its index is returned.
+
+     Else it throws.
+  */
+  const affirmParamIndex = function(stmt,key){
+    const n = ('number'===typeof key)
+          ? key : capi.sqlite3_bind_parameter_index(stmt.pointer, key);
+    if(0===n || !util.isInt32(n)){
+      toss3("Invalid bind() parameter name: "+key);
+    }
+    else if(n<1 || n>stmt.parameterCount) toss3("Bind index",key,"is out of range.");
+    return n;
+  };
+
+  /**
+     If stmt._lockedByExec is truthy, this throws an exception
+     complaining that the 2nd argument (an operation name,
+     e.g. "bind()") is not legal while the statement is "locked".
+     Locking happens before an exec()-like callback is passed a
+     statement, to ensure that the callback does not mutate or
+     finalize the statement. If it does not throw, it returns stmt.
+  */
+  const affirmNotLockedByExec = function(stmt,currentOpName){
+    if(stmt._lockedByExec){
+      toss3("Operation is illegal when statement is locked:",currentOpName);
+    }
+    return stmt;
+  };
+
+  /**
+     Binds a single bound parameter value on the given stmt at the
+     given index (numeric or named) using the given bindType (see
+     the BindTypes enum) and value. Throws on error. Returns stmt on
+     success.
+  */
+  const bindOne = function f(stmt,ndx,bindType,val){
+    affirmNotLockedByExec(affirmStmtOpen(stmt), 'bind()');
+    if(!f._){
+      f._tooBigInt = (v)=>toss3(
+        "BigInt value is too big to store without precision loss:", v
+      );
+      f._ = {
+        string: function(stmt, ndx, val, asBlob){
+          const [pStr, n] = wasm.allocCString(val, true);
+          const f = asBlob ? capi.sqlite3_bind_blob : capi.sqlite3_bind_text;
+          return f(stmt.pointer, ndx, pStr, n, capi.SQLITE_WASM_DEALLOC);
+        }
+      };
+    }/* static init */
+    affirmSupportedBindType(val);
+    ndx = affirmParamIndex(stmt,ndx);
+    let rc = 0;
+    switch((null===val || undefined===val) ? BindTypes.null : bindType){
+        case BindTypes.null:
+          rc = capi.sqlite3_bind_null(stmt.pointer, ndx);
+          break;
+        case BindTypes.string:
+          rc = f._.string(stmt, ndx, val, false);
+          break;
+        case BindTypes.number: {
+          let m;
+          if(util.isInt32(val)) m = capi.sqlite3_bind_int;
+          else if('bigint'===typeof val){
+            if(!util.bigIntFits64(val)){
+              f._tooBigInt(val);
+            }else if(wasm.bigIntEnabled){
+              m = capi.sqlite3_bind_int64;
+            }else if(util.bigIntFitsDouble(val)){
+              val = Number(val);
+              m = capi.sqlite3_bind_double;
+            }else{
+              f._tooBigInt(val);
+            }
+          }else{ // !int32, !bigint
+            val = Number(val);
+            if(wasm.bigIntEnabled && Number.isInteger(val)){
+              m = capi.sqlite3_bind_int64;
+            }else{
+              m = capi.sqlite3_bind_double;
+            }
+          }
+          rc = m(stmt.pointer, ndx, val);
+          break;
+        }
+        case BindTypes.boolean:
+          rc = capi.sqlite3_bind_int(stmt.pointer, ndx, val ? 1 : 0);
+          break;
+        case BindTypes.blob: {
+          if('string'===typeof val){
+            rc = f._.string(stmt, ndx, val, true);
+            break;
+          }else if(val instanceof ArrayBuffer){
+            val = new Uint8Array(val);
+          }else if(!util.isBindableTypedArray(val)){
+            toss3("Binding a value as a blob requires",
+                  "that it be a string, Uint8Array, Int8Array, or ArrayBuffer.");
+          }
+          const pBlob = wasm.alloc(val.byteLength || 1);
+          wasm.heap8().set(val.byteLength ? val : [0], pBlob)
+          rc = capi.sqlite3_bind_blob(stmt.pointer, ndx, pBlob, val.byteLength,
+                                      capi.SQLITE_WASM_DEALLOC);
+          break;
+        }
+        default:
+          sqlite3.config.warn("Unsupported bind() argument type:",val);
+          toss3("Unsupported bind() argument type: "+(typeof val));
+    }
+    if(rc) DB.checkRc(stmt.db.pointer, rc);
+    stmt._mayGet = false;
+    return stmt;
+  };
+
+  Stmt.prototype = {
+    /**
+       "Finalizes" this statement. This is a no-op if the statement
+       has already been finalized. Returns the result of
+       sqlite3_finalize() (0 on success, non-0 on error), or the
+       undefined value if the statement has already been
+       finalized. Regardless of success or failure, most methods in
+       this class will throw if called after this is.
+
+       This method always throws if called when it is illegal to do
+       so. Namely, when triggered via a per-row callback handler of a
+       DB.exec() call.
+    */
+    finalize: function(){
+      if(this.pointer){
+        affirmNotLockedByExec(this,'finalize()');
+        const rc = capi.sqlite3_finalize(this.pointer);
+        delete __stmtMap.get(this.db)[this.pointer];
+        __ptrMap.delete(this);
+        delete this._mayGet;
+        delete this.parameterCount;
+        delete this._lockedByExec;
+        delete this.db;
+        return rc;
+      }
+    },
+    /**
+       Clears all bound values. Returns this object.  Throws if this
+       statement has been finalized or if modification of the
+       statement is currently illegal (e.g. in the per-row callback of
+       a DB.exec() call).
+    */
+    clearBindings: function(){
+      affirmNotLockedByExec(affirmStmtOpen(this), 'clearBindings()')
+      capi.sqlite3_clear_bindings(this.pointer);
+      this._mayGet = false;
+      return this;
+    },
+    /**
+       Resets this statement so that it may be step()ed again from the
+       beginning. Returns this object. Throws if this statement has
+       been finalized, if it may not legally be reset because it is
+       currently being used from a DB.exec() callback, or if the
+       underlying call to sqlite3_reset() returns non-0.
+
+       If passed a truthy argument then this.clearBindings() is
+       also called, otherwise any existing bindings, along with
+       any memory allocated for them, are retained.
+
+       In versions 3.42.0 and earlier, this function did not throw if
+       sqlite3_reset() returns non-0, but it was discovered that
+       throwing (or significant extra client-side code) is necessary
+       in order to avoid certain silent failure scenarios, as
+       discussed at:
+
+       https://sqlite.org/forum/forumpost/36f7a2e7494897df
+    */
+    reset: function(alsoClearBinds){
+      affirmNotLockedByExec(this,'reset()');
+      if(alsoClearBinds) this.clearBindings();
+      const rc = capi.sqlite3_reset(affirmStmtOpen(this).pointer);
+      this._mayGet = false;
+      checkSqlite3Rc(this.db, rc);
+      return this;
+    },
+    /**
+       Binds one or more values to its bindable parameters. It
+       accepts 1 or 2 arguments:
+
+       If passed a single argument, it must be either an array, an
+       object, or a value of a bindable type (see below).
+
+       If passed 2 arguments, the first one is the 1-based bind
+       index or bindable parameter name and the second one must be
+       a value of a bindable type.
+
+       Bindable value types:
+
+       - null is bound as NULL.
+
+       - undefined as a standalone value is a no-op intended to
+         simplify certain client-side use cases: passing undefined as
+         a value to this function will not actually bind anything and
+         this function will skip confirmation that binding is even
+         legal. (Those semantics simplify certain client-side uses.)
+         Conversely, a value of undefined as an array or object
+         property when binding an array/object (see below) is treated
+         the same as null.
+
+       - Numbers are bound as either doubles or integers: doubles if
+         they are larger than 32 bits, else double or int32, depending
+         on whether they have a fractional part. Booleans are bound as
+         integer 0 or 1. It is not expected the distinction of binding
+         doubles which have no fractional parts and integers is
+         significant for the majority of clients due to sqlite3's data
+         typing model. If BigInt support is enabled then this routine
+         will bind BigInt values as 64-bit integers if they'll fit in
+         64 bits. If that support disabled, it will store the BigInt
+         as an int32 or a double if it can do so without loss of
+         precision. If the BigInt is _too BigInt_ then it will throw.
+
+       - Strings are bound as strings (use bindAsBlob() to force
+         blob binding).
+
+       - Uint8Array, Int8Array, and ArrayBuffer instances are bound as
+         blobs.
+
+       If passed an array, each element of the array is bound at
+       the parameter index equal to the array index plus 1
+       (because arrays are 0-based but binding is 1-based).
+
+       If passed an object, each object key is treated as a
+       bindable parameter name. The object keys _must_ match any
+       bindable parameter names, including any `$`, `@`, or `:`
+       prefix. Because `$` is a legal identifier chararacter in
+       JavaScript, that is the suggested prefix for bindable
+       parameters: `stmt.bind({$a: 1, $b: 2})`.
+
+       It returns this object on success and throws on
+       error. Errors include:
+
+       - Any bind index is out of range, a named bind parameter
+       does not match, or this statement has no bindable
+       parameters.
+
+       - Any value to bind is of an unsupported type.
+
+       - Passed no arguments or more than two.
+
+       - The statement has been finalized.
+    */
+    bind: function(/*[ndx,] arg*/){
+      affirmStmtOpen(this);
+      let ndx, arg;
+      switch(arguments.length){
+          case 1: ndx = 1; arg = arguments[0]; break;
+          case 2: ndx = arguments[0]; arg = arguments[1]; break;
+          default: toss3("Invalid bind() arguments.");
+      }
+      if(undefined===arg){
+        /* It might seem intuitive to bind undefined as NULL
+           but this approach simplifies certain client-side
+           uses when passing on arguments between 2+ levels of
+           functions. */
+        return this;
+      }else if(!this.parameterCount){
+        toss3("This statement has no bindable parameters.");
+      }
+      this._mayGet = false;
+      if(null===arg){
+        /* bind NULL */
+        return bindOne(this, ndx, BindTypes.null, arg);
+      }
+      else if(Array.isArray(arg)){
+        /* bind each entry by index */
+        if(1!==arguments.length){
+          toss3("When binding an array, an index argument is not permitted.");
+        }
+        arg.forEach((v,i)=>bindOne(this, i+1, affirmSupportedBindType(v), v));
+        return this;
+      }else if(arg instanceof ArrayBuffer){
+        arg = new Uint8Array(arg);
+      }
+      if('object'===typeof arg/*null was checked above*/
+              && !util.isBindableTypedArray(arg)){
+        /* Treat each property of arg as a named bound parameter. */
+        if(1!==arguments.length){
+          toss3("When binding an object, an index argument is not permitted.");
+        }
+        Object.keys(arg)
+          .forEach(k=>bindOne(this, k,
+                              affirmSupportedBindType(arg[k]),
+                              arg[k]));
+        return this;
+      }else{
+        return bindOne(this, ndx, affirmSupportedBindType(arg), arg);
+      }
+      toss3("Should not reach this point.");
+    },
+    /**
+       Special case of bind() which binds the given value using the
+       BLOB binding mechanism instead of the default selected one for
+       the value. The ndx may be a numbered or named bind index. The
+       value must be of type string, null/undefined (both get treated
+       as null), or a TypedArray of a type supported by the bind()
+       API. This API cannot bind numbers as blobs.
+
+       If passed a single argument, a bind index of 1 is assumed and
+       the first argument is the value.
+    */
+    bindAsBlob: function(ndx,arg){
+      affirmStmtOpen(this);
+      if(1===arguments.length){
+        arg = ndx;
+        ndx = 1;
+      }
+      const t = affirmSupportedBindType(arg);
+      if(BindTypes.string !== t && BindTypes.blob !== t
+         && BindTypes.null !== t){
+        toss3("Invalid value type for bindAsBlob()");
+      }
+      return bindOne(this, ndx, BindTypes.blob, arg);
+    },
+    /**
+       Steps the statement one time. If the result indicates that a
+       row of data is available, a truthy value is returned.  If no
+       row of data is available, a falsy value is returned.  Throws on
+       error.
+    */
+    step: function(){
+      affirmNotLockedByExec(this, 'step()');
+      const rc = capi.sqlite3_step(affirmStmtOpen(this).pointer);
+      switch(rc){
+          case capi.SQLITE_DONE: return this._mayGet = false;
+          case capi.SQLITE_ROW: return this._mayGet = true;
+          default:
+            this._mayGet = false;
+            sqlite3.config.warn("sqlite3_step() rc=",rc,
+                         capi.sqlite3_js_rc_str(rc),
+                         "SQL =", capi.sqlite3_sql(this.pointer));
+            DB.checkRc(this.db.pointer, rc);
+      }
+    },
+    /**
+       Functions exactly like step() except that...
+
+       1) On success, it calls this.reset() and returns this object.
+
+       2) On error, it throws and does not call reset().
+
+       This is intended to simplify constructs like:
+
+       ```
+       for(...) {
+         stmt.bind(...).stepReset();
+       }
+       ```
+
+       Note that the reset() call makes it illegal to call this.get()
+       after the step.
+    */
+    stepReset: function(){
+      this.step();
+      return this.reset();
+    },
+    /**
+       Functions like step() except that it calls finalize() on this
+       statement immediately after stepping, even if the step() call
+       throws.
+
+       On success, it returns true if the step indicated that a row of
+       data was available, else it returns a falsy value.
+
+       This is intended to simplify use cases such as:
+
+       ```
+       aDb.prepare("insert into foo(a) values(?)").bind(123).stepFinalize();
+       ```
+    */
+    stepFinalize: function(){
+      try{
+        const rc = this.step();
+        this.reset(/*for INSERT...RETURNING locking case*/);
+        return rc;
+      }finally{
+        try{this.finalize()}
+        catch(e){/*ignored*/}
+      }
+    },
+
+    /**
+       Fetches the value from the given 0-based column index of
+       the current data row, throwing if index is out of range.
+
+       Requires that step() has just returned a truthy value, else
+       an exception is thrown.
+
+       By default it will determine the data type of the result
+       automatically. If passed a second argument, it must be one
+       of the enumeration values for sqlite3 types, which are
+       defined as members of the sqlite3 module: SQLITE_INTEGER,
+       SQLITE_FLOAT, SQLITE_TEXT, SQLITE_BLOB. Any other value,
+       except for undefined, will trigger an exception. Passing
+       undefined is the same as not passing a value. It is legal
+       to, e.g., fetch an integer value as a string, in which case
+       sqlite3 will convert the value to a string.
+
+       If ndx is an array, this function behaves a differently: it
+       assigns the indexes of the array, from 0 to the number of
+       result columns, to the values of the corresponding column,
+       and returns that array.
+
+       If ndx is a plain object, this function behaves even
+       differentlier: it assigns the properties of the object to
+       the values of their corresponding result columns and returns
+       that object.
+
+       Blobs are returned as Uint8Array instances.
+
+       Potential TODO: add type ID SQLITE_JSON, which fetches the
+       result as a string and passes it (if it's not null) to
+       JSON.parse(), returning the result of that. Until then,
+       getJSON() can be used for that.
+    */
+    get: function(ndx,asType){
+      if(!affirmStmtOpen(this)._mayGet){
+        toss3("Stmt.step() has not (recently) returned true.");
+      }
+      if(Array.isArray(ndx)){
+        let i = 0;
+        const n = this.columnCount;
+        while(i<n){
+          ndx[i] = this.get(i++);
+        }
+        return ndx;
+      }else if(ndx && 'object'===typeof ndx){
+        let i = 0;
+        const n = this.columnCount;
+        while(i<n){
+          ndx[capi.sqlite3_column_name(this.pointer,i)] = this.get(i++);
+        }
+        return ndx;
+      }
+      affirmColIndex(this, ndx);
+      switch(undefined===asType
+             ? capi.sqlite3_column_type(this.pointer, ndx)
+             : asType){
+          case capi.SQLITE_NULL: return null;
+          case capi.SQLITE_INTEGER:{
+            if(wasm.bigIntEnabled){
+              const rc = capi.sqlite3_column_int64(this.pointer, ndx);
+              if(rc>=Number.MIN_SAFE_INTEGER && rc<=Number.MAX_SAFE_INTEGER){
+                /* Coerce "normal" number ranges to normal number values,
+                   and only return BigInt-type values for numbers out of this
+                   range. */
+                return Number(rc).valueOf();
+              }
+              return rc;
+            }else{
+              const rc = capi.sqlite3_column_double(this.pointer, ndx);
+              if(rc>Number.MAX_SAFE_INTEGER || rc<Number.MIN_SAFE_INTEGER){
+                /* Throwing here is arguable but, since we're explicitly
+                   extracting an SQLITE_INTEGER-type value, it seems fair to throw
+                   if the extracted number is out of range for that type.
+                   This policy may be laxened to simply pass on the number and
+                   hope for the best, as the C API would do. */
+                toss3("Integer is out of range for JS integer range: "+rc);
+              }
+              //sqlite3.config.log("get integer rc=",rc,isInt32(rc));
+              return util.isInt32(rc) ? (rc | 0) : rc;
+            }
+          }
+          case capi.SQLITE_FLOAT:
+            return capi.sqlite3_column_double(this.pointer, ndx);
+          case capi.SQLITE_TEXT:
+            return capi.sqlite3_column_text(this.pointer, ndx);
+          case capi.SQLITE_BLOB: {
+            const n = capi.sqlite3_column_bytes(this.pointer, ndx),
+                  ptr = capi.sqlite3_column_blob(this.pointer, ndx),
+                  rc = new Uint8Array(n);
+            //heap = n ? wasm.heap8() : false;
+            if(n) rc.set(wasm.heap8u().slice(ptr, ptr+n), 0);
+            //for(let i = 0; i < n; ++i) rc[i] = heap[ptr + i];
+            if(n && this.db._blobXfer instanceof Array){
+              /* This is an optimization soley for the
+                 Worker-based API. These values will be
+                 transfered to the main thread directly
+                 instead of being copied. */
+              this.db._blobXfer.push(rc.buffer);
+            }
+            return rc;
+          }
+          default: toss3("Don't know how to translate",
+                         "type of result column #"+ndx+".");
+      }
+      toss3("Not reached.");
+    },
+    /** Equivalent to get(ndx) but coerces the result to an
+        integer. */
+    getInt: function(ndx){return this.get(ndx,capi.SQLITE_INTEGER)},
+    /** Equivalent to get(ndx) but coerces the result to a
+        float. */
+    getFloat: function(ndx){return this.get(ndx,capi.SQLITE_FLOAT)},
+    /** Equivalent to get(ndx) but coerces the result to a
+        string. */
+    getString: function(ndx){return this.get(ndx,capi.SQLITE_TEXT)},
+    /** Equivalent to get(ndx) but coerces the result to a
+        Uint8Array. */
+    getBlob: function(ndx){return this.get(ndx,capi.SQLITE_BLOB)},
+    /**
+       A convenience wrapper around get() which fetches the value
+       as a string and then, if it is not null, passes it to
+       JSON.parse(), returning that result. Throws if parsing
+       fails. If the result is null, null is returned. An empty
+       string, on the other hand, will trigger an exception.
+    */
+    getJSON: function(ndx){
+      const s = this.get(ndx, capi.SQLITE_STRING);
+      return null===s ? s : JSON.parse(s);
+    },
+    // Design note: the only reason most of these getters have a 'get'
+    // prefix is for consistency with getVALUE_TYPE().  The latter
+    // arguably really need that prefix for API readability and the
+    // rest arguably don't, but consistency is a powerful thing.
+    /**
+       Returns the result column name of the given index, or
+       throws if index is out of bounds or this statement has been
+       finalized. This can be used without having run step()
+       first.
+    */
+    getColumnName: function(ndx){
+      return capi.sqlite3_column_name(
+        affirmColIndex(affirmStmtOpen(this),ndx).pointer, ndx
+      );
+    },
+    /**
+       If this statement potentially has result columns, this function
+       returns an array of all such names. If passed an array, it is
+       used as the target and all names are appended to it. Returns
+       the target array. Throws if this statement cannot have result
+       columns. This object's columnCount property holds the number of
+       columns.
+    */
+    getColumnNames: function(tgt=[]){
+      affirmColIndex(affirmStmtOpen(this),0);
+      const n = this.columnCount;
+      for(let i = 0; i < n; ++i){
+        tgt.push(capi.sqlite3_column_name(this.pointer, i));
+      }
+      return tgt;
+    },
+    /**
+       If this statement has named bindable parameters and the
+       given name matches one, its 1-based bind index is
+       returned. If no match is found, 0 is returned. If it has no
+       bindable parameters, the undefined value is returned.
+    */
+    getParamIndex: function(name){
+      return (affirmStmtOpen(this).parameterCount
+              ? capi.sqlite3_bind_parameter_index(this.pointer, name)
+              : undefined);
+    },
+    /**
+       If this statement has named bindable parameters and the given
+       index refers to one, its name is returned, else null is
+       returned. If this statement has no bound parameters, undefined
+       is returned.
+
+       Added in 3.47.
+    */
+    getParamName: function(ndx){
+      return (affirmStmtOpen(this).parameterCount
+              ? capi.sqlite3_bind_parameter_name(this.pointer, ndx)
+              : undefined);
+    },
+
+    /**
+       Behaves like sqlite3_stmt_busy() but throws if this statement
+       is closed and returns a value of type boolean instead of integer.
+
+       Added in 3.47.
+    */
+    isBusy: function(){
+      return 0!==capi.sqlite3_stmt_busy(affirmStmtOpen(this));
+    },
+
+    /**
+       Behaves like sqlite3_stmt_readonly() but throws if this statement
+       is closed and returns a value of type boolean instead of integer.
+
+       Added in 3.47.
+    */
+    isReadOnly: function(){
+      return 0!==capi.sqlite3_stmt_readonly(affirmStmtOpen(this));
+    }
+  }/*Stmt.prototype*/;
+
+  {/* Add the `pointer` property to DB and Stmt. */
+    const prop = {
+      enumerable: true,
+      get: function(){return __ptrMap.get(this)},
+      set: ()=>toss3("The pointer property is read-only.")
+    }
+    Object.defineProperty(Stmt.prototype, 'pointer', prop);
+    Object.defineProperty(DB.prototype, 'pointer', prop);
+  }
+  /**
+     Stmt.columnCount is an interceptor for sqlite3_column_count().
+
+     This requires an unfortunate performance hit compared to caching
+     columnCount when the Stmt is created/prepared (as was done in
+     SQLite <=3.42.0), but is necessary in order to handle certain
+     corner cases, as described in
+     https://sqlite.org/forum/forumpost/7774b773937cbe0a.
+  */
+  Object.defineProperty(Stmt.prototype, 'columnCount', {
+    enumerable: false,
+    get: function(){return capi.sqlite3_column_count(this.pointer)},
+    set: ()=>toss3("The columnCount property is read-only.")
+  });
+
+  /** The OO API's public namespace. */
+  sqlite3.oo1 = {
+    DB,
+    Stmt
+  }/*oo1 object*/;
+
+  if(util.isUIThread()){
+    /**
+       Functionally equivalent to DB(storageName,'c','kvvfs') except
+       that it throws if the given storage name is not one of 'local'
+       or 'session'.
+
+       As of version 3.46, the argument may optionally be an options
+       object in the form:
+
+       {
+         filename: 'session'|'local',
+         ... etc. (all options supported by the DB ctor)
+       }
+
+       noting that the 'vfs' option supported by main DB
+       constructor is ignored here: the vfs is always 'kvvfs'.
+    */
+    sqlite3.oo1.JsStorageDb = function(storageName='session'){
+      const opt = dbCtorHelper.normalizeArgs(...arguments);
+      storageName = opt.filename;
+      if('session'!==storageName && 'local'!==storageName){
+        toss3("JsStorageDb db name must be one of 'session' or 'local'.");
+      }
+      opt.vfs = 'kvvfs';
+      dbCtorHelper.call(this, opt);
+    };
+    const jdb = sqlite3.oo1.JsStorageDb;
+    jdb.prototype = Object.create(DB.prototype);
+    /** Equivalent to sqlite3_js_kvvfs_clear(). */
+    jdb.clearStorage = capi.sqlite3_js_kvvfs_clear;
+    /**
+       Clears this database instance's storage or throws if this
+       instance has been closed. Returns the number of
+       database blocks which were cleaned up.
+    */
+    jdb.prototype.clearStorage = function(){
+      return jdb.clearStorage(affirmDbOpen(this).filename);
+    };
+    /** Equivalent to sqlite3_js_kvvfs_size(). */
+    jdb.storageSize = capi.sqlite3_js_kvvfs_size;
+    /**
+       Returns the _approximate_ number of bytes this database takes
+       up in its storage or throws if this instance has been closed.
+    */
+    jdb.prototype.storageSize = function(){
+      return jdb.storageSize(affirmDbOpen(this).filename);
+    };
+  }/*main-window-only bits*/
+
+});
+//#else
+/* Built with the omit-oo1 flag. */
+//#endif ifnot omit-oo1
diff --git a/ext/wasm/api/sqlite3-api-prologue.js b/ext/wasm/api/sqlite3-api-prologue.js
new file mode 100644
index 0000000000000000000000000000000000000000..c8db3698c164ec4786af796c7059a4b7593fc617
--- /dev/null
+++ b/ext/wasm/api/sqlite3-api-prologue.js
@@ -0,0 +1,2195 @@
+/*
+  2022-05-22
+
+  The author disclaims copyright to this source code.  In place of a
+  legal notice, here is a blessing:
+
+  *   May you do good and not evil.
+  *   May you find forgiveness for yourself and forgive others.
+  *   May you share freely, never taking more than you give.
+
+  ***********************************************************************
+
+  This file is intended to be combined at build-time with other
+  related code, most notably a header and footer which wraps this
+  whole file into an Emscripten Module.postRun() handler. The sqlite3
+  JS API has no hard requirements on Emscripten and does not expose
+  any Emscripten APIs to clients. It is structured such that its build
+  can be tweaked to include it in arbitrary WASM environments which
+  can supply the necessary underlying features (e.g. a POSIX file I/O
+  layer).
+
+  Main project home page: https://sqlite.org
+
+  Documentation home page: https://sqlite.org/wasm
+*/
+
+/**
+   sqlite3ApiBootstrap() is the only global symbol persistently
+   exposed by this API. It is intended to be called one time at the
+   end of the API amalgamation process, passed configuration details
+   for the current environment, and then optionally be removed from
+   the global object using `delete globalThis.sqlite3ApiBootstrap`.
+
+   This function is not intended for client-level use. It is intended
+   for use in creating bundles configured for specific WASM
+   environments.
+
+   This function expects a configuration object, intended to abstract
+   away details specific to any given WASM environment, primarily so
+   that it can be used without any direct dependency on
+   Emscripten. (Note the default values for the config object!) The
+   config object is only honored the first time this is
+   called. Subsequent calls ignore the argument and return the same
+   (configured) object which gets initialized by the first call.  This
+   function will throw if any of the required config options are
+   missing.
+
+   The config object properties include:
+
+   - `exports`[^1]: the "exports" object for the current WASM
+     environment. In an Emscripten-based build, this should be set to
+     `Module['asm']`.
+
+   - `memory`[^1]: optional WebAssembly.Memory object, defaulting to
+     `exports.memory`. In Emscripten environments this should be set
+     to `Module.wasmMemory` if the build uses `-sIMPORTED_MEMORY`, or be
+     left undefined/falsy to default to `exports.memory` when using
+     WASM-exported memory.
+
+   - `bigIntEnabled`: true if BigInt support is enabled. Defaults to
+     true if `globalThis.BigInt64Array` is available, else false. Some APIs
+     will throw exceptions if called without BigInt support, as BigInt
+     is required for marshalling C-side int64 into and out of JS.
+     (Sidebar: it is technically possible to add int64 support via
+     marshalling of int32 pairs, but doing so is unduly invasive.)
+
+   - `allocExportName`: the name of the function, in `exports`, of the
+     `malloc(3)`-compatible routine for the WASM environment. Defaults
+     to `"sqlite3_malloc"`. Beware that using any allocator other than
+     sqlite3_malloc() may require care in certain client-side code
+     regarding which allocator is uses. Notably, sqlite3_deserialize()
+     and sqlite3_serialize() can only safely use memory from different
+     allocators under very specific conditions. The canonical builds
+     of this API guaranty that `sqlite3_malloc()` is the JS-side
+     allocator implementation.
+
+   - `deallocExportName`: the name of the function, in `exports`, of
+     the `free(3)`-compatible routine for the WASM
+     environment. Defaults to `"sqlite3_free"`.
+
+   - `reallocExportName`: the name of the function, in `exports`, of
+     the `realloc(3)`-compatible routine for the WASM
+     environment. Defaults to `"sqlite3_realloc"`.
+
+   - `debug`, `log`, `warn`, and `error` may be functions equivalent
+     to the like-named methods of the global `console` object. By
+     default, these map directly to their `console` counterparts, but
+     can be replaced with (e.g.) empty functions to squelch all such
+     output.
+
+   - `wasmfsOpfsDir`[^1]: Specifies the "mount point" of the OPFS-backed
+     filesystem in WASMFS-capable builds.
+
+
+   [^1] = This property may optionally be a function, in which case
+          this function calls that function to fetch the value,
+          enabling delayed evaluation.
+
+   The returned object is the top-level sqlite3 namespace object.
+
+
+   Client code may optionally assign sqlite3ApiBootstrap.defaultConfig
+   an object-type value before calling sqlite3ApiBootstrap() (without
+   arguments) in order to tell that call to use this object as its
+   default config value. The intention of this is to provide
+   downstream clients with a reasonably flexible approach for plugging
+   in an environment-suitable configuration without having to define a
+   new global-scope symbol.
+
+   However, because clients who access this library via an
+   Emscripten-hosted module will not have an opportunity to call
+   sqlite3ApiBootstrap() themselves, nor to access it before it is
+   called, an alternative option for setting the configuration is to
+   define globalThis.sqlite3ApiConfig to an object. If it is set, it
+   is used instead of sqlite3ApiBootstrap.defaultConfig if
+   sqlite3ApiBootstrap() is called without arguments.
+
+   Both sqlite3ApiBootstrap.defaultConfig and
+   globalThis.sqlite3ApiConfig get deleted by sqlite3ApiBootstrap()
+   because any changes to them made after that point would have no
+   useful effect.
+*/
+'use strict';
+globalThis.sqlite3ApiBootstrap = function sqlite3ApiBootstrap(
+  apiConfig = (globalThis.sqlite3ApiConfig || sqlite3ApiBootstrap.defaultConfig)
+){
+  if(sqlite3ApiBootstrap.sqlite3){ /* already initalized */
+    (sqlite3ApiBootstrap.sqlite3.config || console).warn(
+      "sqlite3ApiBootstrap() called multiple times.",
+      "Config and external initializers are ignored on calls after the first."
+    );
+    return sqlite3ApiBootstrap.sqlite3;
+  }
+  const config = Object.assign(Object.create(null),{
+    exports: undefined,
+    memory: undefined,
+    bigIntEnabled: (()=>{
+      if('undefined'!==typeof Module){
+        /* Emscripten module will contain HEAPU64 when built with
+           -sWASM_BIGINT=1, else it will not.
+
+           As of emsdk 3.1.55, when building in strict mode, HEAPxyz
+           are only available if _explicitly_ included in the exports,
+           else they are not. We do not (as of 2024-03-04) use -sSTRICT
+           for the canonical builds.
+        */
+        if( !!Module.HEAPU64 ) return true;
+        /* Else fall through and hope for the best. Nobody _really_
+           builds this without BigInt support, do they? */
+      }
+      return !!globalThis.BigInt64Array;
+    })(),
+    debug: console.debug.bind(console),
+    warn: console.warn.bind(console),
+    error: console.error.bind(console),
+    log: console.log.bind(console),
+    wasmfsOpfsDir: '/opfs',
+    /**
+       useStdAlloc is just for testing allocator discrepancies. The
+       docs guarantee that this is false in the canonical builds. For
+       99% of purposes it doesn't matter which allocators we use, but
+       it becomes significant with, e.g., sqlite3_deserialize() and
+       certain wasm.xWrap.resultAdapter()s.
+    */
+    useStdAlloc: false
+  }, apiConfig || {});
+
+  Object.assign(config, {
+    allocExportName: config.useStdAlloc ? 'malloc' : 'sqlite3_malloc',
+    deallocExportName: config.useStdAlloc ? 'free' : 'sqlite3_free',
+    reallocExportName: config.useStdAlloc ? 'realloc' : 'sqlite3_realloc'
+  }, config);
+
+  [
+    // If any of these config options are functions, replace them with
+    // the result of calling that function...
+    'exports', 'memory', 'wasmfsOpfsDir'
+  ].forEach((k)=>{
+    if('function' === typeof config[k]){
+      config[k] = config[k]();
+    }
+  });
+
+  /**
+     Eliminate any confusion about whether these config objects may
+     be used after library initialization by eliminating the outward-facing
+     objects...
+  */
+  delete globalThis.sqlite3ApiConfig;
+  delete sqlite3ApiBootstrap.defaultConfig;
+
+  /**
+      The main sqlite3 binding API gets installed into this object,
+      mimicking the C API as closely as we can. The numerous members
+      names with prefixes 'sqlite3_' and 'SQLITE_' behave, insofar as
+      possible, identically to the C-native counterparts, as documented at:
+
+      https://www.sqlite.org/c3ref/intro.html
+
+      A very few exceptions require an additional level of proxy
+      function or may otherwise require special attention in the WASM
+      environment, and all such cases are documented somewhere below
+      in this file or in sqlite3-api-glue.js. capi members which are
+      not documented are installed as 1-to-1 proxies for their
+      C-side counterparts.
+  */
+  const capi = Object.create(null);
+  /**
+     Holds state which are specific to the WASM-related
+     infrastructure and glue code.
+
+     Note that a number of members of this object are injected
+     dynamically after the api object is fully constructed, so
+     not all are documented in this file.
+  */
+  const wasm = Object.create(null);
+
+  /** Internal helper for SQLite3Error ctor. */
+  const __rcStr = (rc)=>{
+    return (capi.sqlite3_js_rc_str && capi.sqlite3_js_rc_str(rc))
+           || ("Unknown result code #"+rc);
+  };
+
+  /** Internal helper for SQLite3Error ctor. */
+  const __isInt = (n)=>'number'===typeof n && n===(n | 0);
+
+  /**
+     An Error subclass specifically for reporting DB-level errors and
+     enabling clients to unambiguously identify such exceptions.
+     The C-level APIs never throw, but some of the higher-level
+     C-style APIs do and the object-oriented APIs use exceptions
+     exclusively to report errors.
+  */
+  class SQLite3Error extends Error {
+    /**
+       Constructs this object with a message depending on its arguments:
+
+       If its first argument is an integer, it is assumed to be
+       an SQLITE_... result code and it is passed to
+       sqlite3.capi.sqlite3_js_rc_str() to stringify it.
+
+       If called with exactly 2 arguments and the 2nd is an object,
+       that object is treated as the 2nd argument to the parent
+       constructor.
+
+       The exception's message is created by concatenating its
+       arguments with a space between each, except for the
+       two-args-with-an-object form and that the first argument will
+       get coerced to a string, as described above, if it's an
+       integer.
+
+       If passed an integer first argument, the error object's
+       `resultCode` member will be set to the given integer value,
+       else it will be set to capi.SQLITE_ERROR.
+    */
+    constructor(...args){
+      let rc;
+      if(args.length){
+        if(__isInt(args[0])){
+          rc = args[0];
+          if(1===args.length){
+            super(__rcStr(args[0]));
+          }else{
+            const rcStr = __rcStr(rc);
+            if('object'===typeof args[1]){
+              super(rcStr,args[1]);
+            }else{
+              args[0] = rcStr+':';
+              super(args.join(' '));
+            }
+          }
+        }else{
+          if(2===args.length && 'object'===typeof args[1]){
+            super(...args);
+          }else{
+            super(args.join(' '));
+          }
+        }
+      }
+      this.resultCode = rc || capi.SQLITE_ERROR;
+      this.name = 'SQLite3Error';
+    }
+  };
+
+  /**
+     Functionally equivalent to the SQLite3Error constructor but may
+     be used as part of an expression, e.g.:
+
+     ```
+     return someFunction(x) || SQLite3Error.toss(...);
+     ```
+  */
+  SQLite3Error.toss = (...args)=>{
+    throw new SQLite3Error(...args);
+  };
+  const toss3 = SQLite3Error.toss;
+
+  if(config.wasmfsOpfsDir && !/^\/[^/]+$/.test(config.wasmfsOpfsDir)){
+    toss3("config.wasmfsOpfsDir must be falsy or in the form '/dir-name'.");
+  }
+
+  /**
+     Returns true if n is a 32-bit (signed) integer, else
+     false. This is used for determining when we need to switch to
+     double-type DB operations for integer values in order to keep
+     more precision.
+  */
+  const isInt32 = (n)=>{
+    return ('bigint'!==typeof n /*TypeError: can't convert BigInt to number*/)
+      && !!(n===(n|0) && n<=2147483647 && n>=-2147483648);
+  };
+  /**
+     Returns true if the given BigInt value is small enough to fit
+     into an int64 value, else false.
+  */
+  const bigIntFits64 = function f(b){
+    if(!f._max){
+      f._max = BigInt("0x7fffffffffffffff");
+      f._min = ~f._max;
+    }
+    return b >= f._min && b <= f._max;
+  };
+
+  /**
+     Returns true if the given BigInt value is small enough to fit
+     into an int32, else false.
+  */
+  const bigIntFits32 = (b)=>(b >= (-0x7fffffffn - 1n) && b <= 0x7fffffffn);
+
+  /**
+     Returns true if the given BigInt value is small enough to fit
+     into a double value without loss of precision, else false.
+  */
+  const bigIntFitsDouble = function f(b){
+    if(!f._min){
+      f._min = Number.MIN_SAFE_INTEGER;
+      f._max = Number.MAX_SAFE_INTEGER;
+    }
+    return b >= f._min && b <= f._max;
+  };
+
+  /** Returns v if v appears to be a TypedArray, else false. */
+  const isTypedArray = (v)=>{
+    return (v && v.constructor && isInt32(v.constructor.BYTES_PER_ELEMENT)) ? v : false;
+  };
+
+
+  /** Internal helper to use in operations which need to distinguish
+      between TypedArrays which are backed by a SharedArrayBuffer
+      from those which are not. */
+  const __SAB = ('undefined'===typeof SharedArrayBuffer)
+        ? function(){} : SharedArrayBuffer;
+  /** Returns true if the given TypedArray object is backed by a
+      SharedArrayBuffer, else false. */
+  const isSharedTypedArray = (aTypedArray)=>(aTypedArray.buffer instanceof __SAB);
+
+  /**
+     Returns either aTypedArray.slice(begin,end) (if
+     aTypedArray.buffer is a SharedArrayBuffer) or
+     aTypedArray.subarray(begin,end) (if it's not).
+
+     This distinction is important for APIs which don't like to
+     work on SABs, e.g. TextDecoder, and possibly for our
+     own APIs which work on memory ranges which "might" be
+     modified by other threads while they're working.
+  */
+  const typedArrayPart = (aTypedArray, begin, end)=>{
+    return isSharedTypedArray(aTypedArray)
+      ? aTypedArray.slice(begin, end)
+      : aTypedArray.subarray(begin, end);
+  };
+
+  /**
+     Returns true if v appears to be one of our bind()-able TypedArray
+     types: Uint8Array or Int8Array or ArrayBuffer. Support for
+     TypedArrays with element sizes >1 is a potential TODO just
+     waiting on a use case to justify them. Until then, their `buffer`
+     property can be used to pass them as an ArrayBuffer. If it's not
+     a bindable array type, a falsy value is returned.
+  */
+  const isBindableTypedArray = (v)=>{
+    return v && (v instanceof Uint8Array
+                 || v instanceof Int8Array
+                 || v instanceof ArrayBuffer);
+  };
+
+  /**
+     Returns true if v appears to be one of the TypedArray types
+     which is legal for holding SQL code (as opposed to binary blobs).
+
+     Currently this is the same as isBindableTypedArray() but it
+     seems likely that we'll eventually want to add Uint32Array
+     and friends to the isBindableTypedArray() list but not to the
+     isSQLableTypedArray() list.
+  */
+  const isSQLableTypedArray = (v)=>{
+    return v && (v instanceof Uint8Array
+                 || v instanceof Int8Array
+                 || v instanceof ArrayBuffer);
+  };
+
+  /** Returns true if isBindableTypedArray(v) does, else throws with a message
+      that v is not a supported TypedArray value. */
+  const affirmBindableTypedArray = (v)=>{
+    return isBindableTypedArray(v)
+      || toss3("Value is not of a supported TypedArray type.");
+  };
+
+  const utf8Decoder = new TextDecoder('utf-8');
+
+  /**
+     Uses TextDecoder to decode the given half-open range of the
+     given TypedArray to a string. This differs from a simple
+     call to TextDecoder in that it accounts for whether the
+     first argument is backed by a SharedArrayBuffer or not,
+     and can work more efficiently if it's not (TextDecoder
+     refuses to act upon an SAB).
+  */
+  const typedArrayToString = function(typedArray, begin, end){
+    return utf8Decoder.decode(typedArrayPart(typedArray, begin,end));
+  };
+
+  /**
+     If v is-a Array, its join("") result is returned.  If
+     isSQLableTypedArray(v) is true then typedArrayToString(v) is
+     returned. If it looks like a WASM pointer, wasm.cstrToJs(v) is
+     returned. Else v is returned as-is.
+  */
+  const flexibleString = function(v){
+    if(isSQLableTypedArray(v)){
+      return typedArrayToString(
+        (v instanceof ArrayBuffer) ? new Uint8Array(v) : v
+      );
+    }
+    else if(Array.isArray(v)) return v.join("");
+    else if(wasm.isPtr(v)) v = wasm.cstrToJs(v);
+    return v;
+  };
+
+  /**
+     An Error subclass specifically for reporting Wasm-level malloc()
+     failure and enabling clients to unambiguously identify such
+     exceptions.
+  */
+  class WasmAllocError extends Error {
+    /**
+       If called with 2 arguments and the 2nd one is an object, it
+       behaves like the Error constructor, else it concatenates all
+       arguments together with a single space between each to
+       construct an error message string. As a special case, if
+       called with no arguments then it uses a default error
+       message.
+    */
+    constructor(...args){
+      if(2===args.length && 'object'===typeof args[1]){
+        super(...args);
+      }else if(args.length){
+        super(args.join(' '));
+      }else{
+        super("Allocation failed.");
+      }
+      this.resultCode = capi.SQLITE_NOMEM;
+      this.name = 'WasmAllocError';
+    }
+  };
+  /**
+     Functionally equivalent to the WasmAllocError constructor but may
+     be used as part of an expression, e.g.:
+
+     ```
+     return someAllocatingFunction(x) || WasmAllocError.toss(...);
+     ```
+  */
+  WasmAllocError.toss = (...args)=>{
+    throw new WasmAllocError(...args);
+  };
+
+  Object.assign(capi, {
+    /**
+       sqlite3_bind_blob() works exactly like its C counterpart unless
+       its 3rd argument is one of:
+
+       - JS string: the 3rd argument is converted to a C string, the
+         4th argument is ignored, and the C-string's length is used
+         in its place.
+
+       - Array: converted to a string as defined for "flexible
+         strings" and then it's treated as a JS string.
+
+       - Int8Array or Uint8Array: wasm.allocFromTypedArray() is used to
+         conver the memory to the WASM heap. If the 4th argument is
+         0 or greater, it is used as-is, otherwise the array's byteLength
+         value is used. This is an exception to the C API's undefined
+         behavior for a negative 4th argument, but results are undefined
+         if the given 4th argument value is greater than the byteLength
+         of the input array.
+
+       - If it's an ArrayBuffer, it gets wrapped in a Uint8Array and
+         treated as that type.
+
+       In all of those cases, the final argument (destructor) is
+       ignored and capi.SQLITE_WASM_DEALLOC is assumed.
+
+       A 3rd argument of `null` is treated as if it were a WASM pointer
+       of 0.
+
+       If the 3rd argument is neither a WASM pointer nor one of the
+       above-described types, capi.SQLITE_MISUSE is returned.
+
+       The first argument may be either an `sqlite3_stmt*` WASM
+       pointer or an sqlite3.oo1.Stmt instance.
+
+       For consistency with the C API, it requires the same number of
+       arguments. It returns capi.SQLITE_MISUSE if passed any other
+       argument count.
+    */
+    sqlite3_bind_blob: undefined/*installed later*/,
+
+    /**
+       sqlite3_bind_text() works exactly like its C counterpart unless
+       its 3rd argument is one of:
+
+       - JS string: the 3rd argument is converted to a C string, the
+         4th argument is ignored, and the C-string's length is used
+         in its place.
+
+       - Array: converted to a string as defined for "flexible
+         strings". The 4th argument is ignored and a value of -1
+         is assumed.
+
+       - Int8Array or Uint8Array: is assumed to contain UTF-8 text, is
+         converted to a string. The 4th argument is ignored, replaced
+         by the array's byteLength value.
+
+       - If it's an ArrayBuffer, it gets wrapped in a Uint8Array and
+         treated as that type.
+
+       In each of those cases, the final argument (text destructor) is
+       ignored and capi.SQLITE_WASM_DEALLOC is assumed.
+
+       A 3rd argument of `null` is treated as if it were a WASM pointer
+       of 0.
+
+       If the 3rd argument is neither a WASM pointer nor one of the
+       above-described types, capi.SQLITE_MISUSE is returned.
+
+       The first argument may be either an `sqlite3_stmt*` WASM
+       pointer or an sqlite3.oo1.Stmt instance.
+
+       For consistency with the C API, it requires the same number of
+       arguments. It returns capi.SQLITE_MISUSE if passed any other
+       argument count.
+
+       If client code needs to bind partial strings, it needs to
+       either parcel the string up before passing it in here or it
+       must pass in a WASM pointer for the 3rd argument and a valid
+       4th-argument value, taking care not to pass a value which
+       truncates a multi-byte UTF-8 character. When passing
+       WASM-format strings, it is important that the final argument be
+       valid or unexpected content can result can result, or even a
+       crash if the application reads past the WASM heap bounds.
+    */
+    sqlite3_bind_text: undefined/*installed later*/,
+
+    /**
+       sqlite3_create_function_v2() differs from its native
+       counterpart only in the following ways:
+
+       1) The fourth argument (`eTextRep`) argument must not specify
+       any encoding other than sqlite3.SQLITE_UTF8. The JS API does not
+       currently support any other encoding and likely never
+       will. This function does not replace that argument on its own
+       because it may contain other flags. As a special case, if
+       the bottom 4 bits of that argument are 0, SQLITE_UTF8 is
+       assumed.
+
+       2) Any of the four final arguments may be either WASM pointers
+       (assumed to be function pointers) or JS Functions. In the
+       latter case, each gets bound to WASM using
+       sqlite3.capi.wasm.installFunction() and that wrapper is passed
+       on to the native implementation.
+
+       For consistency with the C API, it requires the same number of
+       arguments. It returns capi.SQLITE_MISUSE if passed any other
+       argument count.
+
+       The semantics of JS functions are:
+
+       xFunc: is passed `(pCtx, ...values)`. Its return value becomes
+       the new SQL function's result.
+
+       xStep: is passed `(pCtx, ...values)`. Its return value is
+       ignored.
+
+       xFinal: is passed `(pCtx)`. Its return value becomes the new
+       aggregate SQL function's result.
+
+       xDestroy: is passed `(void*)`. Its return value is ignored. The
+       pointer passed to it is the one from the 5th argument to
+       sqlite3_create_function_v2().
+
+       Note that:
+
+       - `pCtx` in the above descriptions is a `sqlite3_context*`. At
+         least 99 times out of a hundred, that initial argument will
+         be irrelevant for JS UDF bindings, but it needs to be there
+         so that the cases where it _is_ relevant, in particular with
+         window and aggregate functions, have full access to the
+         lower-level sqlite3 APIs.
+
+       - When wrapping JS functions, the remaining arguments are passd
+         to them as positional arguments, not as an array of
+         arguments, because that allows callback definitions to be
+         more JS-idiomatic than C-like. For example `(pCtx,a,b)=>a+b`
+         is more intuitive and legible than
+         `(pCtx,args)=>args[0]+args[1]`. For cases where an array of
+         arguments would be more convenient, the callbacks simply need
+         to be declared like `(pCtx,...args)=>{...}`, in which case
+         `args` will be an array.
+
+       - If a JS wrapper throws, it gets translated to
+         sqlite3_result_error() or sqlite3_result_error_nomem(),
+         depending on whether the exception is an
+         sqlite3.WasmAllocError object or not.
+
+       - When passing on WASM function pointers, arguments are _not_
+         converted or reformulated. They are passed on as-is in raw
+         pointer form using their native C signatures. Only JS
+         functions passed in to this routine, and thus wrapped by this
+         routine, get automatic conversions of arguments and result
+         values. The routines which perform those conversions are
+         exposed for client-side use as
+         sqlite3_create_function_v2.convertUdfArgs() and
+         sqlite3_create_function_v2.setUdfResult(). sqlite3_create_function()
+         and sqlite3_create_window_function() have those same methods.
+
+       For xFunc(), xStep(), and xFinal():
+
+       - When called from SQL, arguments to the UDF, and its result,
+         will be converted between JS and SQL with as much fidelity as
+         is feasible, triggering an exception if a type conversion
+         cannot be determined. Some freedom is afforded to numeric
+         conversions due to friction between the JS and C worlds:
+         integers which are larger than 32 bits may be treated as
+         doubles or BigInts.
+
+       If any JS-side bound functions throw, those exceptions are
+       intercepted and converted to database-side errors with the
+       exception of xDestroy(): any exception from it is ignored,
+       possibly generating a console.error() message.  Destructors
+       must not throw.
+
+       Once installed, there is currently no way to uninstall the
+       automatically-converted WASM-bound JS functions from WASM. They
+       can be uninstalled from the database as documented in the C
+       API, but this wrapper currently has no infrastructure in place
+       to also free the WASM-bound JS wrappers, effectively resulting
+       in a memory leak if the client uninstalls the UDF. Improving that
+       is a potential TODO, but removing client-installed UDFs is rare
+       in practice. If this factor is relevant for a given client,
+       they can create WASM-bound JS functions themselves, hold on to their
+       pointers, and pass the pointers in to here. Later on, they can
+       free those pointers (using `wasm.uninstallFunction()` or
+       equivalent).
+
+       C reference: https://www.sqlite.org/c3ref/create_function.html
+
+       Maintenance reminder: the ability to add new
+       WASM-accessible functions to the runtime requires that the
+       WASM build is compiled with emcc's `-sALLOW_TABLE_GROWTH`
+       flag.
+    */
+    sqlite3_create_function_v2: (
+      pDb, funcName, nArg, eTextRep, pApp,
+      xFunc, xStep, xFinal, xDestroy
+    )=>{/*installed later*/},
+    /**
+       Equivalent to passing the same arguments to
+       sqlite3_create_function_v2(), with 0 as the final argument.
+    */
+    sqlite3_create_function: (
+      pDb, funcName, nArg, eTextRep, pApp,
+      xFunc, xStep, xFinal
+    )=>{/*installed later*/},
+    /**
+       The sqlite3_create_window_function() JS wrapper differs from
+       its native implementation in the exact same way that
+       sqlite3_create_function_v2() does. The additional function,
+       xInverse(), is treated identically to xStep() by the wrapping
+       layer.
+    */
+    sqlite3_create_window_function: (
+      pDb, funcName, nArg, eTextRep, pApp,
+      xStep, xFinal, xValue, xInverse, xDestroy
+    )=>{/*installed later*/},
+    /**
+       The sqlite3_prepare_v3() binding handles two different uses
+       with differing JS/WASM semantics:
+
+       1) sqlite3_prepare_v3(pDb, sqlString, -1, prepFlags, ppStmt , null)
+
+       2) sqlite3_prepare_v3(pDb, sqlPointer, sqlByteLen, prepFlags, ppStmt, sqlPointerToPointer)
+
+       Note that the SQL length argument (the 3rd argument) must, for
+       usage (1), always be negative because it must be a byte length
+       and that value is expensive to calculate from JS (where only
+       the character length of strings is readily available). It is
+       retained in this API's interface for code/documentation
+       compatibility reasons but is currently _always_ ignored. With
+       usage (2), the 3rd argument is used as-is but is is still
+       critical that the C-style input string (2nd argument) be
+       terminated with a 0 byte.
+
+       In usage (1), the 2nd argument must be of type string,
+       Uint8Array, Int8Array, or ArrayBuffer (all of which are assumed
+       to hold SQL). If it is, this function assumes case (1) and
+       calls the underyling C function with the equivalent of:
+
+       (pDb, sqlAsString, -1, prepFlags, ppStmt, null)
+
+       The `pzTail` argument is ignored in this case because its
+       result is meaningless when a string-type value is passed
+       through: the string goes through another level of internal
+       conversion for WASM's sake and the result pointer would refer
+       to that transient conversion's memory, not the passed-in
+       string.
+
+       If the sql argument is not a string, it must be a _pointer_ to
+       a NUL-terminated string which was allocated in the WASM memory
+       (e.g. using capi.wasm.alloc() or equivalent). In that case,
+       the final argument may be 0/null/undefined or must be a pointer
+       to which the "tail" of the compiled SQL is written, as
+       documented for the C-side sqlite3_prepare_v3(). In case (2),
+       the underlying C function is called with the equivalent of:
+
+       (pDb, sqlAsPointer, sqlByteLen, prepFlags, ppStmt, pzTail)
+
+       It returns its result and compiled statement as documented in
+       the C API. Fetching the output pointers (5th and 6th
+       parameters) requires using `capi.wasm.peek()` (or
+       equivalent) and the `pzTail` will point to an address relative to
+       the `sqlAsPointer` value.
+
+       If passed an invalid 2nd argument type, this function will
+       return SQLITE_MISUSE and sqlite3_errmsg() will contain a string
+       describing the problem.
+
+       Side-note: if given an empty string, or one which contains only
+       comments or an empty SQL expression, 0 is returned but the result
+       output pointer will be NULL.
+    */
+    sqlite3_prepare_v3: (dbPtr, sql, sqlByteLen, prepFlags,
+                         stmtPtrPtr, strPtrPtr)=>{}/*installed later*/,
+
+    /**
+       Equivalent to calling sqlite3_prapare_v3() with 0 as its 4th argument.
+    */
+    sqlite3_prepare_v2: (dbPtr, sql, sqlByteLen,
+                         stmtPtrPtr,strPtrPtr)=>{}/*installed later*/,
+
+    /**
+       This binding enables the callback argument to be a JavaScript.
+
+       If the callback is a function, then for the duration of the
+       sqlite3_exec() call, it installs a WASM-bound function which
+       acts as a proxy for the given callback. That proxy will also
+       perform a conversion of the callback's arguments from
+       `(char**)` to JS arrays of strings. However, for API
+       consistency's sake it will still honor the C-level callback
+       parameter order and will call it like:
+
+       `callback(pVoid, colCount, listOfValues, listOfColNames)`
+
+       If the callback is not a JS function then this binding performs
+       no translation of the callback, but the sql argument is still
+       converted to a WASM string for the call using the
+       "string:flexible" argument converter.
+    */
+    sqlite3_exec: (pDb, sql, callback, pVoid, pErrMsg)=>{}/*installed later*/,
+
+    /**
+       If passed a single argument which appears to be a byte-oriented
+       TypedArray (Int8Array or Uint8Array), this function treats that
+       TypedArray as an output target, fetches `theArray.byteLength`
+       bytes of randomness, and populates the whole array with it. As
+       a special case, if the array's length is 0, this function
+       behaves as if it were passed (0,0). When called this way, it
+       returns its argument, else it returns the `undefined` value.
+
+       If called with any other arguments, they are passed on as-is
+       to the C API. Results are undefined if passed any incompatible
+       values.
+     */
+    sqlite3_randomness: (n, outPtr)=>{/*installed later*/},
+  }/*capi*/);
+
+  /**
+     Various internal-use utilities are added here as needed. They
+     are bound to an object only so that we have access to them in
+     the differently-scoped steps of the API bootstrapping
+     process. At the end of the API setup process, this object gets
+     removed. These are NOT part of the public API.
+  */
+  const util = {
+    affirmBindableTypedArray, flexibleString,
+    bigIntFits32, bigIntFits64, bigIntFitsDouble,
+    isBindableTypedArray,
+    isInt32, isSQLableTypedArray, isTypedArray,
+    typedArrayToString,
+    isUIThread: ()=>(globalThis.window===globalThis && !!globalThis.document),
+    // is this true for ESM?: 'undefined'===typeof WorkerGlobalScope
+    isSharedTypedArray,
+    toss: function(...args){throw new Error(args.join(' '))},
+    toss3,
+    typedArrayPart,
+    /**
+       Given a byte array or ArrayBuffer, this function throws if the
+       lead bytes of that buffer do not hold a SQLite3 database header,
+       else it returns without side effects.
+
+       Added in 3.44.
+    */
+    affirmDbHeader: function(bytes){
+      if(bytes instanceof ArrayBuffer) bytes = new Uint8Array(bytes);
+      const header = "SQLite format 3";
+      if( header.length > bytes.byteLength ){
+        toss3("Input does not contain an SQLite3 database header.");
+      }
+      for(let i = 0; i < header.length; ++i){
+        if( header.charCodeAt(i) !== bytes[i] ){
+          toss3("Input does not contain an SQLite3 database header.");
+        }
+      }
+    },
+    /**
+       Given a byte array or ArrayBuffer, this function throws if the
+       database does not, at a cursory glance, appear to be an SQLite3
+       database. It only examines the size and header, but further
+       checks may be added in the future.
+
+       Added in 3.44.
+    */
+    affirmIsDb: function(bytes){
+      if(bytes instanceof ArrayBuffer) bytes = new Uint8Array(bytes);
+      const n = bytes.byteLength;
+      if(n<512 || n%512!==0) {
+        toss3("Byte array size",n,"is invalid for an SQLite3 db.");
+      }
+      util.affirmDbHeader(bytes);
+    }
+  }/*util*/;
+
+  Object.assign(wasm, {
+    /**
+       Emscripten APIs have a deep-seated assumption that all pointers
+       are 32 bits. We'll remain optimistic that that won't always be
+       the case and will use this constant in places where we might
+       otherwise use a hard-coded 4.
+    */
+    ptrSizeof: config.wasmPtrSizeof || 4,
+    /**
+       The WASM IR (Intermediate Representation) value for
+       pointer-type values. It MUST refer to a value type of the
+       size described by this.ptrSizeof.
+    */
+    ptrIR: config.wasmPtrIR || "i32",
+    /**
+       True if BigInt support was enabled via (e.g.) the
+       Emscripten -sWASM_BIGINT flag, else false. When
+       enabled, certain 64-bit sqlite3 APIs are enabled which
+       are not otherwise enabled due to JS/WASM int64
+       impedence mismatches.
+    */
+    bigIntEnabled: !!config.bigIntEnabled,
+    /**
+       The symbols exported by the WASM environment.
+    */
+    exports: config.exports
+      || toss3("Missing API config.exports (WASM module exports)."),
+
+    /**
+       When Emscripten compiles with `-sIMPORTED_MEMORY`, it
+       initalizes the heap and imports it into wasm, as opposed to
+       the other way around. In this case, the memory is not
+       available via this.exports.memory.
+    */
+    memory: config.memory || config.exports['memory']
+      || toss3("API config object requires a WebAssembly.Memory object",
+              "in either config.exports.memory (exported)",
+              "or config.memory (imported)."),
+
+    /**
+       The API's primary point of access to the WASM-side memory
+       allocator.  Works like sqlite3_malloc() but throws a
+       WasmAllocError if allocation fails. It is important that any
+       code which might pass through the sqlite3 C API NOT throw and
+       must instead return SQLITE_NOMEM (or equivalent, depending on
+       the context).
+
+       Very few cases in the sqlite3 JS APIs can result in
+       client-defined functions propagating exceptions via the C-style
+       API. Most notably, this applies to WASM-bound JS functions
+       which are created directly by clients and passed on _as WASM
+       function pointers_ to functions such as
+       sqlite3_create_function_v2(). Such bindings created
+       transparently by this API will automatically use wrappers which
+       catch exceptions and convert them to appropriate error codes.
+
+       For cases where non-throwing allocation is required, use
+       this.alloc.impl(), which is direct binding of the
+       underlying C-level allocator.
+
+       Design note: this function is not named "malloc" primarily
+       because Emscripten uses that name and we wanted to avoid any
+       confusion early on in this code's development, when it still
+       had close ties to Emscripten's glue code.
+    */
+    alloc: undefined/*installed later*/,
+
+    /**
+       Rarely necessary in JS code, this routine works like
+       sqlite3_realloc(M,N), where M is either NULL or a pointer
+       obtained from this function or this.alloc() and N is the number
+       of bytes to reallocate the block to. Returns a pointer to the
+       reallocated block or 0 if allocation fails.
+
+       If M is NULL and N is positive, this behaves like
+       this.alloc(N). If N is 0, it behaves like this.dealloc().
+       Results are undefined if N is negative (sqlite3_realloc()
+       treats that as 0, but if this code is built with a different
+       allocator it may misbehave with negative values).
+
+       Like this.alloc.impl(), this.realloc.impl() is a direct binding
+       to the underlying realloc() implementation which does not throw
+       exceptions, instead returning 0 on allocation error.
+    */
+    realloc: undefined/*installed later*/,
+
+    /**
+       The API's primary point of access to the WASM-side memory
+       deallocator. Works like sqlite3_free().
+
+       Design note: this function is not named "free" for the same
+       reason that this.alloc() is not called this.malloc().
+    */
+    dealloc: undefined/*installed later*/
+
+    /* Many more wasm-related APIs get installed later on. */
+  }/*wasm*/);
+
+  /**
+     wasm.alloc()'s srcTypedArray.byteLength bytes,
+     populates them with the values from the source
+     TypedArray, and returns the pointer to that memory. The
+     returned pointer must eventually be passed to
+     wasm.dealloc() to clean it up.
+
+     The argument may be a Uint8Array, Int8Array, or ArrayBuffer,
+     and it throws if passed any other type.
+
+     As a special case, to avoid further special cases where
+     this is used, if srcTypedArray.byteLength is 0, it
+     allocates a single byte and sets it to the value
+     0. Even in such cases, calls must behave as if the
+     allocated memory has exactly srcTypedArray.byteLength
+     bytes.
+  */
+  wasm.allocFromTypedArray = function(srcTypedArray){
+    if(srcTypedArray instanceof ArrayBuffer){
+      srcTypedArray = new Uint8Array(srcTypedArray);
+    }
+    affirmBindableTypedArray(srcTypedArray);
+    const pRet = wasm.alloc(srcTypedArray.byteLength || 1);
+    wasm.heapForSize(srcTypedArray.constructor).set(
+      srcTypedArray.byteLength ? srcTypedArray : [0], pRet
+    );
+    return pRet;
+  };
+
+  {
+    // Set up allocators...
+    const keyAlloc = config.allocExportName,
+          keyDealloc = config.deallocExportName,
+          keyRealloc = config.reallocExportName;
+    for(const key of [keyAlloc, keyDealloc, keyRealloc]){
+      const f = wasm.exports[key];
+      if(!(f instanceof Function)) toss3("Missing required exports[",key,"] function.");
+    }
+
+    wasm.alloc = function f(n){
+      return f.impl(n) || WasmAllocError.toss("Failed to allocate",n," bytes.");
+    };
+    wasm.alloc.impl = wasm.exports[keyAlloc];
+    wasm.realloc = function f(m,n){
+      const m2 = f.impl(m,n);
+      return n ? (m2 || WasmAllocError.toss("Failed to reallocate",n," bytes.")) : 0;
+    };
+    wasm.realloc.impl = wasm.exports[keyRealloc];
+    wasm.dealloc = wasm.exports[keyDealloc];
+  }
+
+  /**
+     Reports info about compile-time options using
+     sqlite3_compileoption_get() and sqlite3_compileoption_used(). It
+     has several distinct uses:
+
+     If optName is an array then it is expected to be a list of
+     compilation options and this function returns an object
+     which maps each such option to true or false, indicating
+     whether or not the given option was included in this
+     build. That object is returned.
+
+     If optName is an object, its keys are expected to be compilation
+     options and this function sets each entry to true or false,
+     indicating whether the compilation option was used or not. That
+     object is returned.
+
+     If passed no arguments then it returns an object mapping
+     all known compilation options to their compile-time values,
+     or boolean true if they are defined with no value. This
+     result, which is relatively expensive to compute, is cached
+     and returned for future no-argument calls.
+
+     In all other cases it returns true if the given option was
+     active when when compiling the sqlite3 module, else false.
+
+     Compile-time option names may optionally include their
+     "SQLITE_" prefix. When it returns an object of all options,
+     the prefix is elided.
+  */
+  wasm.compileOptionUsed = function f(optName){
+    if(!arguments.length){
+      if(f._result) return f._result;
+      else if(!f._opt){
+        f._rx = /^([^=]+)=(.+)/;
+        f._rxInt = /^-?\d+$/;
+        f._opt = function(opt, rv){
+          const m = f._rx.exec(opt);
+          rv[0] = (m ? m[1] : opt);
+          rv[1] = m ? (f._rxInt.test(m[2]) ? +m[2] : m[2]) : true;
+        };
+      }
+      const rc = {}, ov = [0,0];
+      let i = 0, k;
+      while((k = capi.sqlite3_compileoption_get(i++))){
+        f._opt(k,ov);
+        rc[ov[0]] = ov[1];
+      }
+      return f._result = rc;
+    }else if(Array.isArray(optName)){
+      const rc = {};
+      optName.forEach((v)=>{
+        rc[v] = capi.sqlite3_compileoption_used(v);
+      });
+      return rc;
+    }else if('object' === typeof optName){
+      Object.keys(optName).forEach((k)=> {
+        optName[k] = capi.sqlite3_compileoption_used(k);
+      });
+      return optName;
+    }
+    return (
+      'string'===typeof optName
+    ) ? !!capi.sqlite3_compileoption_used(optName) : false;
+  }/*compileOptionUsed()*/;
+
+  /**
+     sqlite3.wasm.pstack (pseudo-stack) holds a special-case
+     stack-style allocator intended only for use with _small_ data of
+     not more than (in total) a few kb in size, managed as if it were
+     stack-based.
+
+     It has only a single intended usage:
+
+     ```
+     const stackPos = pstack.pointer;
+     try{
+       const ptr = pstack.alloc(8);
+       // ==> pstack.pointer === ptr
+       const otherPtr = pstack.alloc(8);
+       // ==> pstack.pointer === otherPtr
+       ...
+     }finally{
+       pstack.restore(stackPos);
+       // ==> pstack.pointer === stackPos
+     }
+     ```
+
+     This allocator is much faster than a general-purpose one but is
+     limited to usage patterns like the one shown above.
+
+     It operates from a static range of memory which lives outside of
+     space managed by Emscripten's stack-management, so does not
+     collide with Emscripten-provided stack allocation APIs. The
+     memory lives in the WASM heap and can be used with routines such
+     as wasm.poke() and wasm.heap8u().slice().
+  */
+  wasm.pstack = Object.assign(Object.create(null),{
+    /**
+       Sets the current pstack position to the given pointer. Results
+       are undefined if the passed-in value did not come from
+       this.pointer.
+    */
+    restore: wasm.exports.sqlite3__wasm_pstack_restore,
+    /**
+       Attempts to allocate the given number of bytes from the
+       pstack. On success, it zeroes out a block of memory of the
+       given size, adjusts the pstack pointer, and returns a pointer
+       to the memory. On error, throws a WasmAllocError. The
+       memory must eventually be released using restore().
+
+       If n is a string, it must be a WASM "IR" value in the set
+       accepted by wasm.sizeofIR(), which is mapped to the size of
+       that data type. If passed a string not in that set, it throws a
+       WasmAllocError.
+
+       This method always adjusts the given value to be a multiple
+       of 8 bytes because failing to do so can lead to incorrect
+       results when reading and writing 64-bit values from/to the WASM
+       heap. Similarly, the returned address is always 8-byte aligned.
+    */
+    alloc: function(n){
+      if('string'===typeof n && !(n = wasm.sizeofIR(n))){
+        WasmAllocError.toss("Invalid value for pstack.alloc(",arguments[0],")");
+      }
+      return wasm.exports.sqlite3__wasm_pstack_alloc(n)
+        || WasmAllocError.toss("Could not allocate",n,
+                               "bytes from the pstack.");
+    },
+    /**
+       alloc()'s n chunks, each sz bytes, as a single memory block and
+       returns the addresses as an array of n element, each holding
+       the address of one chunk.
+
+       sz may optionally be an IR string accepted by wasm.sizeofIR().
+
+       Throws a WasmAllocError if allocation fails.
+
+       Example:
+
+       ```
+       const [p1, p2, p3] = wasm.pstack.allocChunks(3,4);
+       ```
+    */
+    allocChunks: function(n,sz){
+      if('string'===typeof sz && !(sz = wasm.sizeofIR(sz))){
+        WasmAllocError.toss("Invalid size value for allocChunks(",arguments[1],")");
+      }
+      const mem = wasm.pstack.alloc(n * sz);
+      const rc = [];
+      let i = 0, offset = 0;
+      for(; i < n; ++i, offset += sz) rc.push(mem + offset);
+      return rc;
+    },
+    /**
+       A convenience wrapper for allocChunks() which sizes each chunk
+       as either 8 bytes (safePtrSize is truthy) or wasm.ptrSizeof (if
+       safePtrSize is falsy).
+
+       How it returns its result differs depending on its first
+       argument: if it's 1, it returns a single pointer value. If it's
+       more than 1, it returns the same as allocChunks().
+
+       When a returned pointers will refer to a 64-bit value, e.g. a
+       double or int64, and that value must be written or fetched,
+       e.g. using wasm.poke() or wasm.peek(), it is
+       important that the pointer in question be aligned to an 8-byte
+       boundary or else it will not be fetched or written properly and
+       will corrupt or read neighboring memory.
+
+       However, when all pointers involved point to "small" data, it
+       is safe to pass a falsy value to save a tiny bit of memory.
+    */
+    allocPtr: (n=1,safePtrSize=true)=>{
+      return 1===n
+        ? wasm.pstack.alloc(safePtrSize ? 8 : wasm.ptrSizeof)
+        : wasm.pstack.allocChunks(n, safePtrSize ? 8 : wasm.ptrSizeof);
+    },
+
+    /**
+       Records the current pstack position, calls the given function,
+       passing it the sqlite3 object, then restores the pstack
+       regardless of whether the function throws. Returns the result
+       of the call or propagates an exception on error.
+
+       Added in 3.44.
+    */
+    call: function(f){
+      const stackPos = wasm.pstack.pointer;
+      try{ return f(sqlite3) } finally{
+        wasm.pstack.restore(stackPos);
+      }
+    }
+
+  })/*wasm.pstack*/;
+  Object.defineProperties(wasm.pstack, {
+    /**
+       sqlite3.wasm.pstack.pointer resolves to the current pstack
+       position pointer. This value is intended _only_ to be saved
+       for passing to restore(). Writing to this memory, without
+       first reserving it via wasm.pstack.alloc() and friends, leads
+       to undefined results.
+    */
+    pointer: {
+      configurable: false, iterable: true, writeable: false,
+      get: wasm.exports.sqlite3__wasm_pstack_ptr
+      //Whether or not a setter as an alternative to restore() is
+      //clearer or would just lead to confusion is unclear.
+      //set: wasm.exports.sqlite3__wasm_pstack_restore
+    },
+    /**
+       sqlite3.wasm.pstack.quota to the total number of bytes
+       available in the pstack, including any space which is currently
+       allocated. This value is a compile-time constant.
+    */
+    quota: {
+      configurable: false, iterable: true, writeable: false,
+      get: wasm.exports.sqlite3__wasm_pstack_quota
+    },
+    /**
+       sqlite3.wasm.pstack.remaining resolves to the amount of space
+       remaining in the pstack.
+    */
+    remaining: {
+      configurable: false, iterable: true, writeable: false,
+      get: wasm.exports.sqlite3__wasm_pstack_remaining
+    }
+  })/*wasm.pstack properties*/;
+
+  capi.sqlite3_randomness = (...args)=>{
+    if(1===args.length && util.isTypedArray(args[0])
+      && 1===args[0].BYTES_PER_ELEMENT){
+      const ta = args[0];
+      if(0===ta.byteLength){
+        wasm.exports.sqlite3_randomness(0,0);
+        return ta;
+      }
+      const stack = wasm.pstack.pointer;
+      try {
+        let n = ta.byteLength, offset = 0;
+        const r = wasm.exports.sqlite3_randomness;
+        const heap = wasm.heap8u();
+        const nAlloc = n < 512 ? n : 512;
+        const ptr = wasm.pstack.alloc(nAlloc);
+        do{
+          const j = (n>nAlloc ? nAlloc : n);
+          r(j, ptr);
+          ta.set(typedArrayPart(heap, ptr, ptr+j), offset);
+          n -= j;
+          offset += j;
+        } while(n > 0);
+      }catch(e){
+        console.error("Highly unexpected (and ignored!) "+
+                      "exception in sqlite3_randomness():",e);
+      }finally{
+        wasm.pstack.restore(stack);
+      }
+      return ta;
+    }
+    wasm.exports.sqlite3_randomness(...args);
+  };
+
+  /** State for sqlite3_wasmfs_opfs_dir(). */
+  let __wasmfsOpfsDir = undefined;
+  /**
+     If the wasm environment has a WASMFS/OPFS-backed persistent
+     storage directory, its path is returned by this function. If it
+     does not then it returns "" (noting that "" is a falsy value).
+
+     The first time this is called, this function inspects the current
+     environment to determine whether persistence support is available
+     and, if it is, enables it (if needed). After the first call it
+     always returns the cached result.
+
+     If the returned string is not empty, any files stored under the
+     given path (recursively) are housed in OPFS storage. If the
+     returned string is empty, this particular persistent storage
+     option is not available on the client.
+
+     Though the mount point name returned by this function is intended
+     to remain stable, clients should not hard-coded it
+     anywhere. Always call this function to get the path.
+
+     Note that this function is a no-op in most builds of this
+     library, as the WASMFS capability requires a custom
+     build.
+  */
+  capi.sqlite3_wasmfs_opfs_dir = function(){
+    if(undefined !== __wasmfsOpfsDir) return __wasmfsOpfsDir;
+    // If we have no OPFS, there is no persistent dir
+    const pdir = config.wasmfsOpfsDir;
+    if(!pdir
+       || !globalThis.FileSystemHandle
+       || !globalThis.FileSystemDirectoryHandle
+       || !globalThis.FileSystemFileHandle){
+      return __wasmfsOpfsDir = "";
+    }
+    try{
+      if(pdir && 0===wasm.xCallWrapped(
+        'sqlite3__wasm_init_wasmfs', 'i32', ['string'], pdir
+      )){
+        return __wasmfsOpfsDir = pdir;
+      }else{
+        return __wasmfsOpfsDir = "";
+      }
+    }catch(e){
+      // sqlite3__wasm_init_wasmfs() is not available
+      return __wasmfsOpfsDir = "";
+    }
+  };
+
+  /**
+     Returns true if sqlite3.capi.sqlite3_wasmfs_opfs_dir() is a
+     non-empty string and the given name starts with (that string +
+     '/'), else returns false.
+  */
+  capi.sqlite3_wasmfs_filename_is_persistent = function(name){
+    const p = capi.sqlite3_wasmfs_opfs_dir();
+    return (p && name) ? name.startsWith(p+'/') : false;
+  };
+
+  /**
+     Given an `sqlite3*`, an sqlite3_vfs name, and an optional db name
+     (defaulting to "main"), returns a truthy value (see below) if
+     that db uses that VFS, else returns false. If pDb is falsy then
+     the 3rd argument is ignored and this function returns a truthy
+     value if the default VFS name matches that of the 2nd
+     argument. Results are undefined if pDb is truthy but refers to an
+     invalid pointer. The 3rd argument specifies the database name of
+     the given database connection to check, defaulting to the main
+     db.
+
+     The 2nd and 3rd arguments may either be a JS string or a WASM
+     C-string. If the 2nd argument is a NULL WASM pointer, the default
+     VFS is assumed. If the 3rd is a NULL WASM pointer, "main" is
+     assumed.
+
+     The truthy value it returns is a pointer to the `sqlite3_vfs`
+     object.
+
+     To permit safe use of this function from APIs which may be called
+     via the C stack (like SQL UDFs), this function does not throw: if
+     bad arguments cause a conversion error when passing into
+     wasm-space, false is returned.
+  */
+  capi.sqlite3_js_db_uses_vfs = function(pDb,vfsName,dbName=0){
+    try{
+      const pK = capi.sqlite3_vfs_find(vfsName);
+      if(!pK) return false;
+      else if(!pDb){
+        return pK===capi.sqlite3_vfs_find(0) ? pK : false;
+      }else{
+        return pK===capi.sqlite3_js_db_vfs(pDb,dbName) ? pK : false;
+      }
+    }catch(e){
+      /* Ignore - probably bad args to a wasm-bound function. */
+      return false;
+    }
+  };
+
+  /**
+     Returns an array of the names of all currently-registered sqlite3
+     VFSes.
+  */
+  capi.sqlite3_js_vfs_list = function(){
+    const rc = [];
+    let pVfs = capi.sqlite3_vfs_find(0);
+    while(pVfs){
+      const oVfs = new capi.sqlite3_vfs(pVfs);
+      rc.push(wasm.cstrToJs(oVfs.$zName));
+      pVfs = oVfs.$pNext;
+      oVfs.dispose();
+    }
+    return rc;
+  };
+
+  /**
+     A convenience wrapper around sqlite3_serialize() which serializes
+     the given `sqlite3*` pointer to a Uint8Array. The first argument
+     may be either an `sqlite3*` or an sqlite3.oo1.DB instance.
+
+     On success it returns a Uint8Array. If the schema is empty, an
+     empty array is returned.
+
+     `schema` is the schema to serialize. It may be a WASM C-string
+     pointer or a JS string. If it is falsy, it defaults to `"main"`.
+
+     On error it throws with a description of the problem.
+  */
+  capi.sqlite3_js_db_export = function(pDb, schema=0){
+    pDb = wasm.xWrap.testConvertArg('sqlite3*', pDb);
+    if(!pDb) toss3('Invalid sqlite3* argument.');
+    if(!wasm.bigIntEnabled) toss3('BigInt64 support is not enabled.');
+    const scope = wasm.scopedAllocPush();
+    let pOut;
+    try{
+      const pSize = wasm.scopedAlloc(8/*i64*/ + wasm.ptrSizeof);
+      const ppOut = pSize + 8;
+      /**
+         Maintenance reminder, since this cost a full hour of grief
+         and confusion: if the order of pSize/ppOut are reversed in
+         that memory block, fetching the value of pSize after the
+         export reads a garbage size because it's not on an 8-byte
+         memory boundary!
+      */
+      const zSchema = schema
+            ? (wasm.isPtr(schema) ? schema : wasm.scopedAllocCString(''+schema))
+            : 0;
+      let rc = wasm.exports.sqlite3__wasm_db_serialize(
+        pDb, zSchema, ppOut, pSize, 0
+      );
+      if(rc){
+        toss3("Database serialization failed with code",
+             sqlite3.capi.sqlite3_js_rc_str(rc));
+      }
+      pOut = wasm.peekPtr(ppOut);
+      const nOut = wasm.peek(pSize, 'i64');
+      rc = nOut
+        ? wasm.heap8u().slice(pOut, pOut + Number(nOut))
+        : new Uint8Array();
+      return rc;
+    }finally{
+      if(pOut) wasm.exports.sqlite3_free(pOut);
+      wasm.scopedAllocPop(scope);
+    }
+  };
+
+  /**
+     Given a `sqlite3*` and a database name (JS string or WASM
+     C-string pointer, which may be 0), returns a pointer to the
+     sqlite3_vfs responsible for it. If the given db name is null/0,
+     or not provided, then "main" is assumed.
+  */
+  capi.sqlite3_js_db_vfs =
+    (dbPointer, dbName=0)=>util.sqlite3__wasm_db_vfs(dbPointer, dbName);
+
+  /**
+     A thin wrapper around capi.sqlite3_aggregate_context() which
+     behaves the same except that it throws a WasmAllocError if that
+     function returns 0. As a special case, if n is falsy it does
+     _not_ throw if that function returns 0. That special case is
+     intended for use with xFinal() implementations.
+  */
+  capi.sqlite3_js_aggregate_context = (pCtx, n)=>{
+    return capi.sqlite3_aggregate_context(pCtx, n)
+      || (n ? WasmAllocError.toss("Cannot allocate",n,
+                                  "bytes for sqlite3_aggregate_context()")
+          : 0);
+  };
+
+  /**
+     If the current environment supports the POSIX file APIs, this routine
+     creates (or overwrites) the given file using those APIs. This is
+     primarily intended for use in Emscripten-based builds where the POSIX
+     APIs are transparently proxied by an in-memory virtual filesystem.
+     It may behave diffrently in other environments.
+
+     The first argument must be either a JS string or WASM C-string
+     holding the filename. Note that this routine does _not_ create
+     intermediary directories if the filename has a directory part.
+
+     The 2nd argument may either a valid WASM memory pointer, an
+     ArrayBuffer, or a Uint8Array. The 3rd must be the length, in
+     bytes, of the data array to copy. If the 2nd argument is an
+     ArrayBuffer or Uint8Array and the 3rd is not a positive integer
+     then the 3rd defaults to the array's byteLength value.
+
+     Results are undefined if data is a WASM pointer and dataLen is
+     exceeds data's bounds.
+
+     Throws if any arguments are invalid or if creating or writing to
+     the file fails.
+
+     Added in 3.43 as an alternative for the deprecated
+     sqlite3_js_vfs_create_file().
+  */
+  capi.sqlite3_js_posix_create_file = function(filename, data, dataLen){
+    let pData;
+    if(data && wasm.isPtr(data)){
+      pData = data;
+    }else if(data instanceof ArrayBuffer || data instanceof Uint8Array){
+      pData = wasm.allocFromTypedArray(data);
+      if(arguments.length<3 || !util.isInt32(dataLen) || dataLen<0){
+        dataLen = data.byteLength;
+      }
+    }else{
+      SQLite3Error.toss("Invalid 2nd argument for sqlite3_js_posix_create_file().");
+    }
+    try{
+      if(!util.isInt32(dataLen) || dataLen<0){
+        SQLite3Error.toss("Invalid 3rd argument for sqlite3_js_posix_create_file().");
+      }
+      const rc = util.sqlite3__wasm_posix_create_file(filename, pData, dataLen);
+      if(rc) SQLite3Error.toss("Creation of file failed with sqlite3 result code",
+                               capi.sqlite3_js_rc_str(rc));
+    }finally{
+       wasm.dealloc(pData);
+    }
+  };
+
+  /**
+     Deprecation warning: this function does not work properly in
+     debug builds of sqlite3 because its out-of-scope use of the
+     sqlite3_vfs API triggers assertions in the core library.  That
+     was unfortunately not discovered until 2023-08-11. This function
+     is now deprecated and should not be used in new code.
+
+     Alternative options:
+
+     - "unix" VFS and its variants can get equivalent functionality
+       with sqlite3_js_posix_create_file().
+
+     - OPFS: use either sqlite3.oo1.OpfsDb.importDb(), for the "opfs"
+       VFS, or the importDb() method of the PoolUtil object provided
+       by the "opfs-sahpool" OPFS (noting that its VFS name may differ
+       depending on client-side configuration). We cannot proxy those
+       from here because the former is necessarily asynchronous and
+       the latter requires information not available to this function.
+
+     Creates a file using the storage appropriate for the given
+     sqlite3_vfs.  The first argument may be a VFS name (JS string
+     only, NOT a WASM C-string), WASM-managed `sqlite3_vfs*`, or
+     a capi.sqlite3_vfs instance. Pass 0 (a NULL pointer) to use the
+     default VFS. If passed a string which does not resolve using
+     sqlite3_vfs_find(), an exception is thrown. (Note that a WASM
+     C-string is not accepted because it is impossible to
+     distinguish from a C-level `sqlite3_vfs*`.)
+
+     The second argument, the filename, must be a JS or WASM C-string.
+
+     The 3rd may either be falsy, a valid WASM memory pointer, an
+     ArrayBuffer, or a Uint8Array. The 4th must be the length, in
+     bytes, of the data array to copy. If the 3rd argument is an
+     ArrayBuffer or Uint8Array and the 4th is not a positive integer
+     then the 4th defaults to the array's byteLength value.
+
+     If data is falsy then a file is created with dataLen bytes filled
+     with uninitialized data (whatever truncate() leaves there). If
+     data is not falsy then a file is created or truncated and it is
+     filled with the first dataLen bytes of the data source.
+
+     Throws if any arguments are invalid or if creating or writing to
+     the file fails.
+
+     Note that most VFSes do _not_ automatically create directory
+     parts of filenames, nor do all VFSes have a concept of
+     directories.  If the given filename is not valid for the given
+     VFS, an exception will be thrown. This function exists primarily
+     to assist in implementing file-upload capability, with the caveat
+     that clients must have some idea of the VFS into which they want
+     to upload and that VFS must support the operation.
+
+     VFS-specific notes:
+
+     - "memdb": results are undefined.
+
+     - "kvvfs": will fail with an I/O error due to strict internal
+       requirments of that VFS's xTruncate().
+
+     - "unix" and related: will use the WASM build's equivalent of the
+       POSIX I/O APIs. This will work so long as neither a specific
+       VFS nor the WASM environment imposes requirements which break it.
+
+     - "opfs": uses OPFS storage and creates directory parts of the
+       filename. It can only be used to import an SQLite3 database
+       file and will fail if given anything else.
+  */
+  capi.sqlite3_js_vfs_create_file = function(vfs, filename, data, dataLen){
+    config.warn("sqlite3_js_vfs_create_file() is deprecated and",
+                "should be avoided because it can lead to C-level crashes.",
+                "See its documentation for alternative options.");
+    let pData;
+    if(data){
+      if(wasm.isPtr(data)){
+        pData = data;
+      }else if(data instanceof ArrayBuffer){
+        data = new Uint8Array(data);
+      }
+      if(data instanceof Uint8Array){
+        pData = wasm.allocFromTypedArray(data);
+        if(arguments.length<4 || !util.isInt32(dataLen) || dataLen<0){
+          dataLen = data.byteLength;
+        }
+      }else{
+        SQLite3Error.toss("Invalid 3rd argument type for sqlite3_js_vfs_create_file().");
+      }
+    }else{
+       pData = 0;
+    }
+    if(!util.isInt32(dataLen) || dataLen<0){
+      wasm.dealloc(pData);
+      SQLite3Error.toss("Invalid 4th argument for sqlite3_js_vfs_create_file().");
+    }
+    try{
+      const rc = util.sqlite3__wasm_vfs_create_file(vfs, filename, pData, dataLen);
+      if(rc) SQLite3Error.toss("Creation of file failed with sqlite3 result code",
+                               capi.sqlite3_js_rc_str(rc));
+    }finally{
+       wasm.dealloc(pData);
+    }
+  };
+
+  /**
+     Converts SQL input from a variety of convenient formats
+     to plain strings.
+
+     If v is a string, it is returned as-is. If it is-a Array, its
+     join("") result is returned.  If is is a Uint8Array, Int8Array,
+     or ArrayBuffer, it is assumed to hold UTF-8-encoded text and is
+     decoded to a string. If it looks like a WASM pointer,
+     wasm.cstrToJs(sql) is returned. Else undefined is returned.
+
+     Added in 3.44
+  */
+  capi.sqlite3_js_sql_to_string = (sql)=>{
+    if('string' === typeof sql){
+      return sql;
+    }
+    const x = flexibleString(v);
+    return x===v ? undefined : x;
+  }
+
+  if( util.isUIThread() ){
+    /* Features specific to the main window thread... */
+
+    /**
+       Internal helper for sqlite3_js_kvvfs_clear() and friends.
+       Its argument should be one of ('local','session',"").
+    */
+    const __kvvfsInfo = function(which){
+      const rc = Object.create(null);
+      rc.prefix = 'kvvfs-'+which;
+      rc.stores = [];
+      if('session'===which || ""===which) rc.stores.push(globalThis.sessionStorage);
+      if('local'===which || ""===which) rc.stores.push(globalThis.localStorage);
+      return rc;
+    };
+
+    /**
+       Clears all storage used by the kvvfs DB backend, deleting any
+       DB(s) stored there. Its argument must be either 'session',
+       'local', or "". In the first two cases, only sessionStorage
+       resp. localStorage is cleared. If it's an empty string (the
+       default) then both are cleared. Only storage keys which match
+       the pattern used by kvvfs are cleared: any other client-side
+       data are retained.
+
+       This function is only available in the main window thread.
+
+       Returns the number of entries cleared.
+    */
+    capi.sqlite3_js_kvvfs_clear = function(which=""){
+      let rc = 0;
+      const kvinfo = __kvvfsInfo(which);
+      kvinfo.stores.forEach((s)=>{
+        const toRm = [] /* keys to remove */;
+        let i;
+        for( i = 0; i < s.length; ++i ){
+          const k = s.key(i);
+          if(k.startsWith(kvinfo.prefix)) toRm.push(k);
+        }
+        toRm.forEach((kk)=>s.removeItem(kk));
+        rc += toRm.length;
+      });
+      return rc;
+    };
+
+    /**
+       This routine guesses the approximate amount of
+       window.localStorage and/or window.sessionStorage in use by the
+       kvvfs database backend. Its argument must be one of
+       ('session', 'local', ""). In the first two cases, only
+       sessionStorage resp. localStorage is counted. If it's an empty
+       string (the default) then both are counted. Only storage keys
+       which match the pattern used by kvvfs are counted. The returned
+       value is the "length" value of every matching key and value,
+       noting that JavaScript stores each character in 2 bytes.
+
+       Note that the returned size is not authoritative from the
+       perspective of how much data can fit into localStorage and
+       sessionStorage, as the precise algorithms for determining
+       those limits are unspecified and may include per-entry
+       overhead invisible to clients.
+    */
+    capi.sqlite3_js_kvvfs_size = function(which=""){
+      let sz = 0;
+      const kvinfo = __kvvfsInfo(which);
+      kvinfo.stores.forEach((s)=>{
+        let i;
+        for(i = 0; i < s.length; ++i){
+          const k = s.key(i);
+          if(k.startsWith(kvinfo.prefix)){
+            sz += k.length;
+            sz += s.getItem(k).length;
+          }
+        }
+      });
+      return sz * 2 /* because JS uses 2-byte char encoding */;
+    };
+
+  }/* main-window-only bits */
+
+  /**
+     Wraps all known variants of the C-side variadic
+     sqlite3_db_config().
+
+     Full docs: https://sqlite.org/c3ref/db_config.html
+
+     Returns capi.SQLITE_MISUSE if op is not a valid operation ID.
+
+     The variants which take `(int, int*)` arguments treat a
+     missing or falsy pointer argument as 0.
+  */
+  capi.sqlite3_db_config = function(pDb, op, ...args){
+    if(!this.s){
+      this.s = wasm.xWrap('sqlite3__wasm_db_config_s','int',
+                          ['sqlite3*', 'int', 'string:static']
+                          /* MAINDBNAME requires a static string */);
+      this.pii = wasm.xWrap('sqlite3__wasm_db_config_pii', 'int',
+                            ['sqlite3*', 'int', '*','int', 'int']);
+      this.ip = wasm.xWrap('sqlite3__wasm_db_config_ip','int',
+                           ['sqlite3*', 'int', 'int','*']);
+    }
+    switch(op){
+        case capi.SQLITE_DBCONFIG_ENABLE_FKEY:
+        case capi.SQLITE_DBCONFIG_ENABLE_TRIGGER:
+        case capi.SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER:
+        case capi.SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION:
+        case capi.SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE:
+        case capi.SQLITE_DBCONFIG_ENABLE_QPSG:
+        case capi.SQLITE_DBCONFIG_TRIGGER_EQP:
+        case capi.SQLITE_DBCONFIG_RESET_DATABASE:
+        case capi.SQLITE_DBCONFIG_DEFENSIVE:
+        case capi.SQLITE_DBCONFIG_WRITABLE_SCHEMA:
+        case capi.SQLITE_DBCONFIG_LEGACY_ALTER_TABLE:
+        case capi.SQLITE_DBCONFIG_DQS_DML:
+        case capi.SQLITE_DBCONFIG_DQS_DDL:
+        case capi.SQLITE_DBCONFIG_ENABLE_VIEW:
+        case capi.SQLITE_DBCONFIG_LEGACY_FILE_FORMAT:
+        case capi.SQLITE_DBCONFIG_TRUSTED_SCHEMA:
+        case capi.SQLITE_DBCONFIG_STMT_SCANSTATUS:
+        case capi.SQLITE_DBCONFIG_REVERSE_SCANORDER:
+          return this.ip(pDb, op, args[0], args[1] || 0);
+        case capi.SQLITE_DBCONFIG_LOOKASIDE:
+          return this.pii(pDb, op, args[0], args[1], args[2]);
+        case capi.SQLITE_DBCONFIG_MAINDBNAME:
+          return this.s(pDb, op, args[0]);
+        default:
+          return capi.SQLITE_MISUSE;
+    }
+  }.bind(Object.create(null));
+
+  /**
+     Given a (sqlite3_value*), this function attempts to convert it
+     to an equivalent JS value with as much fidelity as feasible and
+     return it.
+
+     By default it throws if it cannot determine any sensible
+     conversion. If passed a falsy second argument, it instead returns
+     `undefined` if no suitable conversion is found.  Note that there
+     is no conversion from SQL to JS which results in the `undefined`
+     value, so `undefined` has an unambiguous meaning here.  It will
+     always throw a WasmAllocError if allocating memory for a
+     conversion fails.
+
+     Caveats:
+
+     - It does not support sqlite3_value_to_pointer() conversions
+       because those require a type name string which this function
+       does not have and cannot sensibly be given at the level of the
+       API where this is used (e.g. automatically converting UDF
+       arguments). Clients using sqlite3_value_to_pointer(), and its
+       related APIs, will need to manage those themselves.
+  */
+  capi.sqlite3_value_to_js = function(pVal,throwIfCannotConvert=true){
+    let arg;
+    const valType = capi.sqlite3_value_type(pVal);
+    switch(valType){
+        case capi.SQLITE_INTEGER:
+          if(wasm.bigIntEnabled){
+            arg = capi.sqlite3_value_int64(pVal);
+            if(util.bigIntFitsDouble(arg)) arg = Number(arg);
+          }
+          else arg = capi.sqlite3_value_double(pVal)/*yes, double, for larger integers*/;
+          break;
+        case capi.SQLITE_FLOAT:
+          arg = capi.sqlite3_value_double(pVal);
+          break;
+        case capi.SQLITE_TEXT:
+          arg = capi.sqlite3_value_text(pVal);
+          break;
+        case capi.SQLITE_BLOB:{
+          const n = capi.sqlite3_value_bytes(pVal);
+          const pBlob = capi.sqlite3_value_blob(pVal);
+          if(n && !pBlob) sqlite3.WasmAllocError.toss(
+            "Cannot allocate memory for blob argument of",n,"byte(s)"
+          );
+          arg = n ? wasm.heap8u().slice(pBlob, pBlob + Number(n)) : null;
+          break;
+        }
+        case capi.SQLITE_NULL:
+          arg = null; break;
+        default:
+          if(throwIfCannotConvert){
+            toss3(capi.SQLITE_MISMATCH,
+                  "Unhandled sqlite3_value_type():",valType);
+          }
+          arg = undefined;
+    }
+    return arg;
+  };
+
+  /**
+     Requires a C-style array of `sqlite3_value*` objects and the
+     number of entries in that array. Returns a JS array containing
+     the results of passing each C array entry to
+     sqlite3_value_to_js(). The 3rd argument to this function is
+     passed on as the 2nd argument to that one.
+  */
+  capi.sqlite3_values_to_js = function(argc,pArgv,throwIfCannotConvert=true){
+    let i;
+    const tgt = [];
+    for(i = 0; i < argc; ++i){
+      /**
+         Curiously: despite ostensibly requiring 8-byte
+         alignment, the pArgv array is parcelled into chunks of
+         4 bytes (1 pointer each). The values those point to
+         have 8-byte alignment but the individual argv entries
+         do not.
+      */
+      tgt.push(capi.sqlite3_value_to_js(
+        wasm.peekPtr(pArgv + (wasm.ptrSizeof * i)),
+        throwIfCannotConvert
+      ));
+    }
+    return tgt;
+  };
+
+  /**
+     Calls either sqlite3_result_error_nomem(), if e is-a
+     WasmAllocError, or sqlite3_result_error(). In the latter case,
+     the second argument is coerced to a string to create the error
+     message.
+
+     The first argument is a (sqlite3_context*). Returns void.
+     Does not throw.
+  */
+  capi.sqlite3_result_error_js = function(pCtx,e){
+    if(e instanceof WasmAllocError){
+      capi.sqlite3_result_error_nomem(pCtx);
+    }else{
+      /* Maintenance reminder: ''+e, rather than e.message,
+         will prefix e.message with e.name, so it includes
+         the exception's type name in the result. */;
+      capi.sqlite3_result_error(pCtx, ''+e, -1);
+    }
+  };
+
+  /**
+     This function passes its 2nd argument to one of the
+     sqlite3_result_xyz() routines, depending on the type of that
+     argument:
+
+     - If (val instanceof Error), this function passes it to
+       sqlite3_result_error_js().
+     - `null`: `sqlite3_result_null()`
+     - `boolean`: `sqlite3_result_int()` with a value of 0 or 1.
+     - `number`: `sqlite3_result_int()`, `sqlite3_result_int64()`, or
+       `sqlite3_result_double()`, depending on the range of the number
+       and whether or not int64 support is enabled.
+     - `bigint`: similar to `number` but will trigger an error if the
+       value is too big to store in an int64.
+     - `string`: `sqlite3_result_text()`
+     - Uint8Array or Int8Array or ArrayBuffer: `sqlite3_result_blob()`
+     - `undefined`: is a no-op provided to simplify certain use cases.
+
+     Anything else triggers `sqlite3_result_error()` with a
+     description of the problem.
+
+     The first argument to this function is a `(sqlite3_context*)`.
+     Returns void. Does not throw.
+  */
+  capi.sqlite3_result_js = function(pCtx,val){
+    if(val instanceof Error){
+      capi.sqlite3_result_error_js(pCtx, val);
+      return;
+    }
+    try{
+      switch(typeof val) {
+          case 'undefined':
+            /* This is a no-op. This routine originated in the create_function()
+               family of APIs and in that context, passing in undefined indicated
+               that the caller was responsible for calling sqlite3_result_xxx()
+               (if needed). */
+            break;
+          case 'boolean':
+            capi.sqlite3_result_int(pCtx, val ? 1 : 0);
+            break;
+          case 'bigint':
+            if(util.bigIntFits32(val)){
+              capi.sqlite3_result_int(pCtx, Number(val));
+            }else if(util.bigIntFitsDouble(val)){
+              capi.sqlite3_result_double(pCtx, Number(val));
+            }else if(wasm.bigIntEnabled){
+              if(util.bigIntFits64(val)) capi.sqlite3_result_int64(pCtx, val);
+              else toss3("BigInt value",val.toString(),"is too BigInt for int64.");
+            }else{
+              toss3("BigInt value",val.toString(),"is too BigInt.");
+            }
+            break;
+          case 'number': {
+            let f;
+            if(util.isInt32(val)){
+              f = capi.sqlite3_result_int;
+            }else if(wasm.bigIntEnabled
+                     && Number.isInteger(val)
+                     && util.bigIntFits64(BigInt(val))){
+              f = capi.sqlite3_result_int64;
+            }else{
+              f = capi.sqlite3_result_double;
+            }
+            f(pCtx, val);
+            break;
+          }
+          case 'string': {
+            const [p, n] = wasm.allocCString(val,true);
+            capi.sqlite3_result_text(pCtx, p, n, capi.SQLITE_WASM_DEALLOC);
+            break;
+          }
+          case 'object':
+            if(null===val/*yes, typeof null === 'object'*/) {
+              capi.sqlite3_result_null(pCtx);
+              break;
+            }else if(util.isBindableTypedArray(val)){
+              const pBlob = wasm.allocFromTypedArray(val);
+              capi.sqlite3_result_blob(
+                pCtx, pBlob, val.byteLength,
+                capi.SQLITE_WASM_DEALLOC
+              );
+              break;
+            }
+            // else fall through
+          default:
+            toss3("Don't not how to handle this UDF result value:",(typeof val), val);
+      }
+    }catch(e){
+      capi.sqlite3_result_error_js(pCtx, e);
+    }
+  };
+
+  /**
+     Returns the result sqlite3_column_value(pStmt,iCol) passed to
+     sqlite3_value_to_js(). The 3rd argument of this function is
+     ignored by this function except to pass it on as the second
+     argument of sqlite3_value_to_js(). If the sqlite3_column_value()
+     returns NULL (e.g. because the column index is out of range),
+     this function returns `undefined`, regardless of the 3rd
+     argument. If the 3rd argument is falsy and conversion fails,
+     `undefined` will be returned.
+
+     Note that sqlite3_column_value() returns an "unprotected" value
+     object, but in a single-threaded environment (like this one)
+     there is no distinction between protected and unprotected values.
+  */
+  capi.sqlite3_column_js = function(pStmt, iCol, throwIfCannotConvert=true){
+    const v = capi.sqlite3_column_value(pStmt, iCol);
+    return (0===v) ? undefined : capi.sqlite3_value_to_js(v, throwIfCannotConvert);
+  };
+
+  /**
+     Internal impl of sqlite3_preupdate_new/old_js() and
+     sqlite3changeset_new/old_js().
+  */
+  const __newOldValue = function(pObj, iCol, impl){
+    impl = capi[impl];
+    if(!this.ptr) this.ptr = wasm.allocPtr();
+    else wasm.pokePtr(this.ptr, 0);
+    const rc = impl(pObj, iCol, this.ptr);
+    if(rc) return SQLite3Error.toss(rc,arguments[2]+"() failed with code "+rc);
+    const pv = wasm.peekPtr(this.ptr);
+    return pv ? capi.sqlite3_value_to_js( pv, true ) : undefined;
+  }.bind(Object.create(null));
+
+  /**
+     A wrapper around sqlite3_preupdate_new() which fetches the
+     sqlite3_value at the given index and returns the result of
+     passing it to sqlite3_value_to_js(). Throws on error.
+  */
+  capi.sqlite3_preupdate_new_js =
+    (pDb, iCol)=>__newOldValue(pDb, iCol, 'sqlite3_preupdate_new');
+
+  /**
+     The sqlite3_preupdate_old() counterpart of
+     sqlite3_preupdate_new_js(), with an identical interface.
+  */
+  capi.sqlite3_preupdate_old_js =
+    (pDb, iCol)=>__newOldValue(pDb, iCol, 'sqlite3_preupdate_old');
+
+  /**
+     A wrapper around sqlite3changeset_new() which fetches the
+     sqlite3_value at the given index and returns the result of
+     passing it to sqlite3_value_to_js(). Throws on error.
+
+     If sqlite3changeset_new() succeeds but has no value to report,
+     this function returns the undefined value, noting that undefined
+     is a valid conversion from an `sqlite3_value`, so is unambiguous.
+  */
+  capi.sqlite3changeset_new_js =
+    (pChangesetIter, iCol) => __newOldValue(pChangesetIter, iCol,
+                                            'sqlite3changeset_new');
+
+  /**
+     The sqlite3changeset_old() counterpart of
+     sqlite3changeset_new_js(), with an identical interface.
+  */
+  capi.sqlite3changeset_old_js =
+    (pChangesetIter, iCol)=>__newOldValue(pChangesetIter, iCol,
+                                          'sqlite3changeset_old');
+
+  /* The remainder of the API will be set up in later steps. */
+  const sqlite3 = {
+    WasmAllocError: WasmAllocError,
+    SQLite3Error: SQLite3Error,
+    capi,
+    util,
+    wasm,
+    config,
+    /**
+       Holds the version info of the sqlite3 source tree from which
+       the generated sqlite3-api.js gets built. Note that its version
+       may well differ from that reported by sqlite3_libversion(), but
+       that should be considered a source file mismatch, as the JS and
+       WASM files are intended to be built and distributed together.
+
+       This object is initially a placeholder which gets replaced by a
+       build-generated object.
+    */
+    version: Object.create(null),
+
+    /**
+       The library reserves the 'client' property for client-side use
+       and promises to never define a property with this name nor to
+       ever rely on specific contents of it. It makes no such guarantees
+       for other properties.
+    */
+    client: undefined,
+
+    /**
+       This function is not part of the public interface, but a
+       piece of internal bootstrapping infrastructure.
+
+       Performs any optional asynchronous library-level initialization
+       which might be required. This function returns a Promise which
+       resolves to the sqlite3 namespace object. Any error in the
+       async init will be fatal to the init as a whole, but init
+       routines are themselves welcome to install dummy catch()
+       handlers which are not fatal if their failure should be
+       considered non-fatal. If called more than once, the second and
+       subsequent calls are no-ops which return a pre-resolved
+       Promise.
+
+       Ideally this function is called as part of the Promise chain
+       which handles the loading and bootstrapping of the API.  If not
+       then it must be called by client-level code, which must not use
+       the library until the returned promise resolves.
+
+       If called multiple times it will return the same promise on
+       subsequent calls. The current build setup precludes that
+       possibility, so it's only a hypothetical problem if/when this
+       function ever needs to be invoked by clients.
+
+       In Emscripten-based builds, this function is called
+       automatically and deleted from this object.
+    */
+    asyncPostInit: async function ff(){
+      if(ff.isReady instanceof Promise) return ff.isReady;
+      let lia = sqlite3ApiBootstrap.initializersAsync;
+      delete sqlite3ApiBootstrap.initializersAsync;
+      const postInit = async ()=>{
+        if(!sqlite3.__isUnderTest){
+          /* Delete references to internal-only APIs which are used by
+             some initializers. Retain them when running in test mode
+             so that we can add tests for them. */
+          delete sqlite3.util;
+          /* It's conceivable that we might want to expose
+             StructBinder to client-side code, but it's only useful if
+             clients build their own sqlite3.wasm which contains their
+             own C struct types. */
+          delete sqlite3.StructBinder;
+        }
+        return sqlite3;
+      };
+      const catcher = (e)=>{
+        config.error("an async sqlite3 initializer failed:",e);
+        throw e;
+      };
+      if(!lia || !lia.length){
+        return ff.isReady = postInit().catch(catcher);
+      }
+      lia = lia.map((f)=>{
+        return (f instanceof Function) ? async x=>f(sqlite3) : f;
+      });
+      lia.push(postInit);
+      let p = Promise.resolve(sqlite3);
+      while(lia.length) p = p.then(lia.shift());
+      return ff.isReady = p.catch(catcher);
+    },
+    /**
+       scriptInfo ideally gets injected into this object by the
+       infrastructure which assembles the JS/WASM module. It contains
+       state which must be collected before sqlite3ApiBootstrap() can
+       be declared. It is not necessarily available to any
+       sqlite3ApiBootstrap.initializers but "should" be in place (if
+       it's added at all) by the time that
+       sqlite3ApiBootstrap.initializersAsync is processed.
+
+       This state is not part of the public API, only intended for use
+       with the sqlite3 API bootstrapping and wasm-loading process.
+    */
+    scriptInfo: undefined
+  };
+  try{
+    sqlite3ApiBootstrap.initializers.forEach((f)=>{
+      f(sqlite3);
+    });
+  }catch(e){
+    /* If we don't report this here, it can get completely swallowed
+       up and disappear into the abyss of Promises and Workers. */
+    console.error("sqlite3 bootstrap initializer threw:",e);
+    throw e;
+  }
+  delete sqlite3ApiBootstrap.initializers;
+  sqlite3ApiBootstrap.sqlite3 = sqlite3;
+  return sqlite3;
+}/*sqlite3ApiBootstrap()*/;
+/**
+  globalThis.sqlite3ApiBootstrap.initializers is an internal detail used by
+  the various pieces of the sqlite3 API's amalgamation process. It
+  must not be modified by client code except when plugging such code
+  into the amalgamation process.
+
+  Each component of the amalgamation is expected to append a function
+  to this array. When sqlite3ApiBootstrap() is called for the first
+  time, each such function will be called (in their appended order)
+  and passed the sqlite3 namespace object, into which they can install
+  their features (noting that most will also require that certain
+  features alread have been installed).  At the end of that process,
+  this array is deleted.
+
+  Note that the order of insertion into this array is significant for
+  some pieces. e.g. sqlite3.capi and sqlite3.wasm cannot be fully
+  utilized until the whwasmutil.js part is plugged in via
+  sqlite3-api-glue.js.
+*/
+globalThis.sqlite3ApiBootstrap.initializers = [];
+/**
+  globalThis.sqlite3ApiBootstrap.initializersAsync is an internal detail
+  used by the sqlite3 API's amalgamation process. It must not be
+  modified by client code except when plugging such code into the
+  amalgamation process.
+
+  The counterpart of globalThis.sqlite3ApiBootstrap.initializers,
+  specifically for initializers which are asynchronous. All entries in
+  this list must be either async functions, non-async functions which
+  return a Promise, or a Promise. Each function in the list is called
+  with the sqlite3 object as its only argument.
+
+  The resolved value of any Promise is ignored and rejection will kill
+  the asyncPostInit() process (at an indeterminate point because all
+  of them are run asynchronously in parallel).
+
+  This list is not processed until the client calls
+  sqlite3.asyncPostInit(). This means, for example, that intializers
+  added to globalThis.sqlite3ApiBootstrap.initializers may push entries to
+  this list.
+*/
+globalThis.sqlite3ApiBootstrap.initializersAsync = [];
+/**
+   Client code may assign sqlite3ApiBootstrap.defaultConfig an
+   object-type value before calling sqlite3ApiBootstrap() (without
+   arguments) in order to tell that call to use this object as its
+   default config value. The intention of this is to provide
+   downstream clients with a reasonably flexible approach for plugging in
+   an environment-suitable configuration without having to define a new
+   global-scope symbol.
+*/
+globalThis.sqlite3ApiBootstrap.defaultConfig = Object.create(null);
+/**
+   Placeholder: gets installed by the first call to
+   globalThis.sqlite3ApiBootstrap(). However, it is recommended that the
+   caller of sqlite3ApiBootstrap() capture its return value and delete
+   globalThis.sqlite3ApiBootstrap after calling it. It returns the same
+   value which will be stored here.
+*/
+globalThis.sqlite3ApiBootstrap.sqlite3 = undefined;
diff --git a/ext/wasm/api/sqlite3-api-worker1.c-pp.js b/ext/wasm/api/sqlite3-api-worker1.c-pp.js
new file mode 100644
index 0000000000000000000000000000000000000000..9918625459c67b7ddf530e832b5e753074c5a833
--- /dev/null
+++ b/ext/wasm/api/sqlite3-api-worker1.c-pp.js
@@ -0,0 +1,656 @@
+//#ifnot omit-oo1
+/**
+  2022-07-22
+
+  The author disclaims copyright to this source code.  In place of a
+  legal notice, here is a blessing:
+
+  *   May you do good and not evil.
+  *   May you find forgiveness for yourself and forgive others.
+  *   May you share freely, never taking more than you give.
+
+  ***********************************************************************
+
+  This file implements the initializer for SQLite's "Worker API #1", a
+  very basic DB access API intended to be scripted from a main window
+  thread via Worker-style messages. Because of limitations in that
+  type of communication, this API is minimalistic and only capable of
+  serving relatively basic DB requests (e.g. it cannot process nested
+  query loops concurrently).
+
+  This file requires that the core C-style sqlite3 API and OO API #1
+  have been loaded.
+*/
+
+/**
+  sqlite3.initWorker1API() implements a Worker-based wrapper around
+  SQLite3 OO API #1, colloquially known as "Worker API #1".
+
+  In order to permit this API to be loaded in worker threads without
+  automatically registering onmessage handlers, initializing the
+  worker API requires calling initWorker1API(). If this function is
+  called from a non-worker thread then it throws an exception.  It
+  must only be called once per Worker.
+
+  When initialized, it installs message listeners to receive Worker
+  messages and then it posts a message in the form:
+
+  ```
+  {type:'sqlite3-api', result:'worker1-ready'}
+  ```
+
+  to let the client know that it has been initialized. Clients may
+  optionally depend on this function not returning until
+  initialization is complete, as the initialization is synchronous.
+  In some contexts, however, listening for the above message is
+  a better fit.
+
+  Note that the worker-based interface can be slightly quirky because
+  of its async nature. In particular, any number of messages may be posted
+  to the worker before it starts handling any of them. If, e.g., an
+  "open" operation fails, any subsequent messages will fail. The
+  Promise-based wrapper for this API (`sqlite3-worker1-promiser.js`)
+  is more comfortable to use in that regard.
+
+  The documentation for the input and output worker messages for
+  this API follows...
+
+  ====================================================================
+  Common message format...
+
+  Each message posted to the worker has an operation-independent
+  envelope and operation-dependent arguments:
+
+  ```
+  {
+    type: string, // one of: 'open', 'close', 'exec', 'export', 'config-get'
+
+    messageId: OPTIONAL arbitrary value. The worker will copy it as-is
+    into response messages to assist in client-side dispatching.
+
+    dbId: a db identifier string (returned by 'open') which tells the
+    operation which database instance to work on. If not provided, the
+    first-opened db is used. This is an "opaque" value, with no
+    inherently useful syntax or information. Its value is subject to
+    change with any given build of this API and cannot be used as a
+    basis for anything useful beyond its one intended purpose.
+
+    args: ...operation-dependent arguments...
+
+    // the framework may add other properties for testing or debugging
+    // purposes.
+
+  }
+  ```
+
+  Response messages, posted back to the main thread, look like:
+
+  ```
+  {
+    type: string. Same as above except for error responses, which have the type
+    'error',
+
+    messageId: same value, if any, provided by the inbound message
+
+    dbId: the id of the db which was operated on, if any, as returned
+    by the corresponding 'open' operation.
+
+    result: ...operation-dependent result...
+
+  }
+  ```
+
+  ====================================================================
+  Error responses
+
+  Errors are reported messages in an operation-independent format:
+
+  ```
+  {
+    type: "error",
+
+    messageId: ...as above...,
+
+    dbId: ...as above...
+
+    result: {
+
+      operation: type of the triggering operation: 'open', 'close', ...
+
+      message: ...error message text...
+
+      errorClass: string. The ErrorClass.name property from the thrown exception.
+
+      input: the message object which triggered the error.
+
+      stack: _if available_, a stack trace array.
+
+    }
+
+  }
+  ```
+
+
+  ====================================================================
+  "config-get"
+
+  This operation fetches the serializable parts of the sqlite3 API
+  configuration.
+
+  Message format:
+
+  ```
+  {
+    type: "config-get",
+    messageId: ...as above...,
+    args: currently ignored and may be elided.
+  }
+  ```
+
+  Response:
+
+  ```
+  {
+    type: "config-get",
+    messageId: ...as above...,
+    result: {
+
+      version: sqlite3.version object
+
+      bigIntEnabled: bool. True if BigInt support is enabled.
+
+      vfsList: result of sqlite3.capi.sqlite3_js_vfs_list()
+   }
+  }
+  ```
+
+
+  ====================================================================
+  "open" a database
+
+  Message format:
+
+  ```
+  {
+    type: "open",
+    messageId: ...as above...,
+    args:{
+
+      filename [=":memory:" or "" (unspecified)]: the db filename.
+      See the sqlite3.oo1.DB constructor for peculiarities and
+      transformations,
+
+      vfs: sqlite3_vfs name. Ignored if filename is ":memory:" or "".
+           This may change how the given filename is resolved.
+    }
+  }
+  ```
+
+  Response:
+
+  ```
+  {
+    type: "open",
+    messageId: ...as above...,
+    result: {
+      filename: db filename, possibly differing from the input.
+
+      dbId: an opaque ID value which must be passed in the message
+      envelope to other calls in this API to tell them which db to
+      use. If it is not provided to future calls, they will default to
+      operating on the least-recently-opened db. This property is, for
+      API consistency's sake, also part of the containing message
+      envelope.  Only the `open` operation includes it in the `result`
+      property.
+
+      persistent: true if the given filename resides in the
+      known-persistent storage, else false.
+
+      vfs: name of the VFS the "main" db is using.
+   }
+  }
+  ```
+
+  ====================================================================
+  "close" a database
+
+  Message format:
+
+  ```
+  {
+    type: "close",
+    messageId: ...as above...
+    dbId: ...as above...
+    args: OPTIONAL {unlink: boolean}
+  }
+  ```
+
+  If the `dbId` does not refer to an opened ID, this is a no-op. If
+  the `args` object contains a truthy `unlink` value then the database
+  will be unlinked (deleted) after closing it. The inability to close a
+  db (because it's not opened) or delete its file does not trigger an
+  error.
+
+  Response:
+
+  ```
+  {
+    type: "close",
+    messageId: ...as above...,
+    result: {
+
+      filename: filename of closed db, or undefined if no db was closed
+
+    }
+  }
+  ```
+
+  ====================================================================
+  "exec" SQL
+
+  All SQL execution is processed through the exec operation. It offers
+  most of the features of the oo1.DB.exec() method, with a few limitations
+  imposed by the state having to cross thread boundaries.
+
+  Message format:
+
+  ```
+  {
+    type: "exec",
+    messageId: ...as above...
+    dbId: ...as above...
+    args: string (SQL) or {... see below ...}
+  }
+  ```
+
+  Response:
+
+  ```
+  {
+    type: "exec",
+    messageId: ...as above...,
+    dbId: ...as above...
+    result: {
+      input arguments, possibly modified. See below.
+    }
+  }
+  ```
+
+  The arguments are in the same form accepted by oo1.DB.exec(), with
+  the exceptions noted below.
+
+  If the `countChanges` arguments property (added in version 3.43) is
+  truthy then the `result` property contained by the returned object
+  will have a `changeCount` property which holds the number of changes
+  made by the provided SQL. Because the SQL may contain an arbitrary
+  number of statements, the `changeCount` is calculated by calling
+  `sqlite3_total_changes()` before and after the SQL is evaluated. If
+  the value of `countChanges` is 64 then the `changeCount` property
+  will be returned as a 64-bit integer in the form of a BigInt (noting
+  that that will trigger an exception if used in a BigInt-incapable
+  build).  In the latter case, the number of changes is calculated by
+  calling `sqlite3_total_changes64()` before and after the SQL is
+  evaluated.
+
+  A function-type args.callback property cannot cross
+  the window/Worker boundary, so is not useful here. If
+  args.callback is a string then it is assumed to be a
+  message type key, in which case a callback function will be
+  applied which posts each row result via:
+
+  postMessage({type: thatKeyType,
+               rowNumber: 1-based-#,
+               row: theRow,
+               columnNames: anArray
+               })
+
+  And, at the end of the result set (whether or not any result rows
+  were produced), it will post an identical message with
+  (row=undefined, rowNumber=null) to alert the caller than the result
+  set is completed. Note that a row value of `null` is a legal row
+  result for certain arg.rowMode values.
+
+    (Design note: we don't use (row=undefined, rowNumber=undefined) to
+    indicate end-of-results because fetching those would be
+    indistinguishable from fetching from an empty object unless the
+    client used hasOwnProperty() (or similar) to distinguish "missing
+    property" from "property with the undefined value".  Similarly,
+    `null` is a legal value for `row` in some case , whereas the db
+    layer won't emit a result value of `undefined`.)
+
+  The callback proxy must not recurse into this interface. An exec()
+  call will tie up the Worker thread, causing any recursion attempt
+  to wait until the first exec() is completed.
+
+  The response is the input options object (or a synthesized one if
+  passed only a string), noting that options.resultRows and
+  options.columnNames may be populated by the call to db.exec().
+
+
+  ====================================================================
+  "export" the current db
+
+  To export the underlying database as a byte array...
+
+  Message format:
+
+  ```
+  {
+    type: "export",
+    messageId: ...as above...,
+    dbId: ...as above...
+  }
+  ```
+
+  Response:
+
+  ```
+  {
+    type: "export",
+    messageId: ...as above...,
+    dbId: ...as above...
+    result: {
+      byteArray: Uint8Array (as per sqlite3_js_db_export()),
+      filename: the db filename,
+      mimetype: "application/x-sqlite3"
+    }
+  }
+  ```
+
+*/
+globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
+const util = sqlite3.util;
+sqlite3.initWorker1API = function(){
+  'use strict';
+  const toss = (...args)=>{throw new Error(args.join(' '))};
+  if(!(globalThis.WorkerGlobalScope instanceof Function)){
+    toss("initWorker1API() must be run from a Worker thread.");
+  }
+  const sqlite3 = this.sqlite3 || toss("Missing this.sqlite3 object.");
+  const DB = sqlite3.oo1.DB;
+
+  /**
+     Returns the app-wide unique ID for the given db, creating one if
+     needed.
+  */
+  const getDbId = function(db){
+    let id = wState.idMap.get(db);
+    if(id) return id;
+    id = 'db#'+(++wState.idSeq)+'@'+db.pointer;
+    /** ^^^ can't simply use db.pointer b/c closing/opening may re-use
+        the same address, which could map pending messages to a wrong
+        instance. */
+    wState.idMap.set(db, id);
+    return id;
+  };
+
+  /**
+     Internal helper for managing Worker-level state.
+  */
+  const wState = {
+    /**
+       Each opened DB is added to this.dbList, and the first entry in
+       that list is the default db. As each db is closed, its entry is
+       removed from the list.
+    */
+    dbList: [],
+    /** Sequence number of dbId generation. */
+    idSeq: 0,
+    /** Map of DB instances to dbId. */
+    idMap: new WeakMap,
+    /** Temp holder for "transferable" postMessage() state. */
+    xfer: [],
+    open: function(opt){
+      const db = new DB(opt);
+      this.dbs[getDbId(db)] = db;
+      if(this.dbList.indexOf(db)<0) this.dbList.push(db);
+      return db;
+    },
+    close: function(db,alsoUnlink){
+      if(db){
+        delete this.dbs[getDbId(db)];
+        const filename = db.filename;
+        const pVfs = util.sqlite3__wasm_db_vfs(db.pointer, 0);
+        db.close();
+        const ddNdx = this.dbList.indexOf(db);
+        if(ddNdx>=0) this.dbList.splice(ddNdx, 1);
+        if(alsoUnlink && filename && pVfs){
+          util.sqlite3__wasm_vfs_unlink(pVfs, filename);
+        }
+      }
+    },
+    /**
+       Posts the given worker message value. If xferList is provided,
+       it must be an array, in which case a copy of it passed as
+       postMessage()'s second argument and xferList.length is set to
+       0.
+    */
+    post: function(msg,xferList){
+      if(xferList && xferList.length){
+        globalThis.postMessage( msg, Array.from(xferList) );
+        xferList.length = 0;
+      }else{
+        globalThis.postMessage(msg);
+      }
+    },
+    /** Map of DB IDs to DBs. */
+    dbs: Object.create(null),
+    /** Fetch the DB for the given id. Throw if require=true and the
+        id is not valid, else return the db or undefined. */
+    getDb: function(id,require=true){
+      return this.dbs[id]
+        || (require ? toss("Unknown (or closed) DB ID:",id) : undefined);
+    }
+  };
+
+  /** Throws if the given db is falsy or not opened, else returns its
+      argument. */
+  const affirmDbOpen = function(db = wState.dbList[0]){
+    return (db && db.pointer) ? db : toss("DB is not opened.");
+  };
+
+  /** Extract dbId from the given message payload. */
+  const getMsgDb = function(msgData,affirmExists=true){
+    const db = wState.getDb(msgData.dbId,false) || wState.dbList[0];
+    return affirmExists ? affirmDbOpen(db) : db;
+  };
+
+  const getDefaultDbId = function(){
+    return wState.dbList[0] && getDbId(wState.dbList[0]);
+  };
+
+  const isSpecialDbFilename = (n)=>{
+    return ""===n || ':'===n[0];
+  };
+
+  /**
+     A level of "organizational abstraction" for the Worker1
+     API. Each method in this object must map directly to a Worker1
+     message type key. The onmessage() dispatcher attempts to
+     dispatch all inbound messages to a method of this object,
+     passing it the event.data part of the inbound event object. All
+     methods must return a plain Object containing any result
+     state, which the dispatcher may amend. All methods must throw
+     on error.
+  */
+  const wMsgHandler = {
+    open: function(ev){
+      const oargs = Object.create(null), args = (ev.args || Object.create(null));
+      if(args.simulateError){ // undocumented internal testing option
+        toss("Throwing because of simulateError flag.");
+      }
+      const rc = Object.create(null);
+      oargs.vfs = args.vfs;
+      oargs.filename = args.filename || "";
+      const db = wState.open(oargs);
+      rc.filename = db.filename;
+      rc.persistent = !!sqlite3.capi.sqlite3_js_db_uses_vfs(db.pointer, "opfs");
+      rc.dbId = getDbId(db);
+      rc.vfs = db.dbVfsName();
+      return rc;
+    },
+
+    close: function(ev){
+      const db = getMsgDb(ev,false);
+      const response = {
+        filename: db && db.filename
+      };
+      if(db){
+        const doUnlink = ((ev.args && 'object'===typeof ev.args)
+                         ? !!ev.args.unlink : false);
+        wState.close(db, doUnlink);
+      }
+      return response;
+    },
+
+    exec: function(ev){
+      const rc = (
+        'string'===typeof ev.args
+      ) ? {sql: ev.args} : (ev.args || Object.create(null));
+      if('stmt'===rc.rowMode){
+        toss("Invalid rowMode for 'exec': stmt mode",
+             "does not work in the Worker API.");
+      }else if(!rc.sql){
+        toss("'exec' requires input SQL.");
+      }
+      const db = getMsgDb(ev);
+      if(rc.callback || Array.isArray(rc.resultRows)){
+        // Part of a copy-avoidance optimization for blobs
+        db._blobXfer = wState.xfer;
+      }
+      const theCallback = rc.callback;
+      let rowNumber = 0;
+      const hadColNames = !!rc.columnNames;
+      if('string' === typeof theCallback){
+        if(!hadColNames) rc.columnNames = [];
+        /* Treat this as a worker message type and post each
+           row as a message of that type. */
+        rc.callback = function(row,stmt){
+          wState.post({
+            type: theCallback,
+            columnNames: rc.columnNames,
+            rowNumber: ++rowNumber,
+            row: row
+          }, wState.xfer);
+        }
+      }
+      try {
+        const changeCount = !!rc.countChanges
+              ? db.changes(true,(64===rc.countChanges))
+              : undefined;
+        db.exec(rc);
+        if(undefined !== changeCount){
+          rc.changeCount = db.changes(true,64===rc.countChanges) - changeCount;
+        }
+        if(rc.callback instanceof Function){
+          rc.callback = theCallback;
+          /* Post a sentinel message to tell the client that the end
+             of the result set has been reached (possibly with zero
+             rows). */
+          wState.post({
+            type: theCallback,
+            columnNames: rc.columnNames,
+            rowNumber: null /*null to distinguish from "property not set"*/,
+            row: undefined /*undefined because null is a legal row value
+                             for some rowType values, but undefined is not*/
+          });
+        }
+      }finally{
+        delete db._blobXfer;
+        if(rc.callback) rc.callback = theCallback;
+      }
+      return rc;
+    }/*exec()*/,
+
+    'config-get': function(){
+      const rc = Object.create(null), src = sqlite3.config;
+      [
+        'bigIntEnabled'
+      ].forEach(function(k){
+        if(Object.getOwnPropertyDescriptor(src, k)) rc[k] = src[k];
+      });
+      rc.version = sqlite3.version;
+      rc.vfsList = sqlite3.capi.sqlite3_js_vfs_list();
+      return rc;
+    },
+
+    /**
+       Exports the database to a byte array, as per
+       sqlite3_serialize(). Response is an object:
+
+       {
+         byteArray:  Uint8Array (db file contents),
+         filename: the current db filename,
+         mimetype: 'application/x-sqlite3'
+       }
+    */
+    export: function(ev){
+      const db = getMsgDb(ev);
+      const response = {
+        byteArray: sqlite3.capi.sqlite3_js_db_export(db.pointer),
+        filename: db.filename,
+        mimetype: 'application/x-sqlite3'
+      };
+      wState.xfer.push(response.byteArray.buffer);
+      return response;
+    }/*export()*/,
+
+    toss: function(ev){
+      toss("Testing worker exception");
+    }
+  }/*wMsgHandler*/;
+
+  globalThis.onmessage = async function(ev){
+    ev = ev.data;
+    let result, dbId = ev.dbId, evType = ev.type;
+    const arrivalTime = performance.now();
+    try {
+      if(wMsgHandler.hasOwnProperty(evType) &&
+         wMsgHandler[evType] instanceof Function){
+        result = await wMsgHandler[evType](ev);
+      }else{
+        toss("Unknown db worker message type:",ev.type);
+      }
+    }catch(err){
+      evType = 'error';
+      result = {
+        operation: ev.type,
+        message: err.message,
+        errorClass: err.name,
+        input: ev
+      };
+      if(err.stack){
+        result.stack = ('string'===typeof err.stack)
+          ? err.stack.split(/\n\s*/) : err.stack;
+      }
+      if(0) sqlite3.config.warn("Worker is propagating an exception to main thread.",
+                                "Reporting it _here_ for the stack trace:",err,result);
+    }
+    if(!dbId){
+      dbId = result.dbId/*from 'open' cmd*/
+        || getDefaultDbId();
+    }
+    // Timing info is primarily for use in testing this API. It's not part of
+    // the public API. arrivalTime = when the worker got the message.
+    wState.post({
+      type: evType,
+      dbId: dbId,
+      messageId: ev.messageId,
+      workerReceivedTime: arrivalTime,
+      workerRespondTime: performance.now(),
+      departureTime: ev.departureTime,
+      // TODO: move the timing bits into...
+      //timing:{
+      //  departure: ev.departureTime,
+      //  workerReceived: arrivalTime,
+      //  workerResponse: performance.now();
+      //},
+      result: result
+    }, wState.xfer);
+  };
+  globalThis.postMessage({type:'sqlite3-api',result:'worker1-ready'});
+}.bind({sqlite3});
+});
+//#else
+/* Built with the omit-oo1 flag. */
+//#endif ifnot omit-oo1
diff --git a/ext/wasm/api/sqlite3-license-version-header.js b/ext/wasm/api/sqlite3-license-version-header.js
new file mode 100644
index 0000000000000000000000000000000000000000..4829894638db38d4579e261286badb83073e62dd
--- /dev/null
+++ b/ext/wasm/api/sqlite3-license-version-header.js
@@ -0,0 +1,25 @@
+/*
+** LICENSE for the sqlite3 WebAssembly/JavaScript APIs.
+**
+** This bundle (typically released as sqlite3.js or sqlite3.mjs)
+** is an amalgamation of JavaScript source code from two projects:
+**
+** 1) https://emscripten.org: the Emscripten "glue code" is covered by
+**    the terms of the MIT license and University of Illinois/NCSA
+**    Open Source License, as described at:
+**
+**    https://emscripten.org/docs/introducing_emscripten/emscripten_license.html
+**
+** 2) https://sqlite.org: all code and documentation labeled as being
+**    from this source are released under the same terms as the sqlite3
+**    C library:
+**
+** 2022-10-16
+**
+** The author disclaims copyright to this source code.  In place of a
+** legal notice, here is a blessing:
+**
+** *   May you do good and not evil.
+** *   May you find forgiveness for yourself and forgive others.
+** *   May you share freely, never taking more than you give.
+*/
diff --git a/ext/wasm/api/sqlite3-opfs-async-proxy.js b/ext/wasm/api/sqlite3-opfs-async-proxy.js
new file mode 100644
index 0000000000000000000000000000000000000000..0028c1025f1736cbfe9b4d48fb1f7ad95da09e6f
--- /dev/null
+++ b/ext/wasm/api/sqlite3-opfs-async-proxy.js
@@ -0,0 +1,805 @@
+/*
+  2022-09-16
+
+  The author disclaims copyright to this source code.  In place of a
+  legal notice, here is a blessing:
+
+  *   May you do good and not evil.
+  *   May you find forgiveness for yourself and forgive others.
+  *   May you share freely, never taking more than you give.
+
+  ***********************************************************************
+
+  A Worker which manages asynchronous OPFS handles on behalf of a
+  synchronous API which controls it via a combination of Worker
+  messages, SharedArrayBuffer, and Atomics. It is the asynchronous
+  counterpart of the API defined in sqlite3-vfs-opfs.js.
+
+  Highly indebted to:
+
+  https://github.com/rhashimoto/wa-sqlite/blob/master/src/examples/OriginPrivateFileSystemVFS.js
+
+  for demonstrating how to use the OPFS APIs.
+
+  This file is to be loaded as a Worker. It does not have any direct
+  access to the sqlite3 JS/WASM bits, so any bits which it needs (most
+  notably SQLITE_xxx integer codes) have to be imported into it via an
+  initialization process.
+
+  This file represents an implementation detail of a larger piece of
+  code, and not a public interface. Its details may change at any time
+  and are not intended to be used by any client-level code.
+
+  2022-11-27: Chrome v108 changes some async methods to synchronous, as
+  documented at:
+
+  https://developer.chrome.com/blog/sync-methods-for-accesshandles/
+
+  Firefox v111 and Safari 16.4, both released in March 2023, also
+  include this.
+
+  We cannot change to the sync forms at this point without breaking
+  clients who use Chrome v104-ish or higher. truncate(), getSize(),
+  flush(), and close() are now (as of v108) synchronous. Calling them
+  with an "await", as we have to for the async forms, is still legal
+  with the sync forms but is superfluous. Calling the async forms with
+  theFunc().then(...) is not compatible with the change to
+  synchronous, but we do do not use those APIs that way. i.e. we don't
+  _need_ to change anything for this, but at some point (after Chrome
+  versions (approximately) 104-107 are extinct) should change our
+  usage of those methods to remove the "await".
+*/
+"use strict";
+const wPost = (type,...args)=>postMessage({type, payload:args});
+const installAsyncProxy = function(){
+  const toss = function(...args){throw new Error(args.join(' '))};
+  if(globalThis.window === globalThis){
+    toss("This code cannot run from the main thread.",
+         "Load it as a Worker from a separate Worker.");
+  }else if(!navigator?.storage?.getDirectory){
+    toss("This API requires navigator.storage.getDirectory.");
+  }
+
+  /**
+     Will hold state copied to this object from the syncronous side of
+     this API.
+  */
+  const state = Object.create(null);
+
+  /**
+     verbose:
+
+     0 = no logging output
+     1 = only errors
+     2 = warnings and errors
+     3 = debug, warnings, and errors
+  */
+  state.verbose = 1;
+
+  const loggers = {
+    0:console.error.bind(console),
+    1:console.warn.bind(console),
+    2:console.log.bind(console)
+  };
+  const logImpl = (level,...args)=>{
+    if(state.verbose>level) loggers[level]("OPFS asyncer:",...args);
+  };
+  const log =    (...args)=>logImpl(2, ...args);
+  const warn =   (...args)=>logImpl(1, ...args);
+  const error =  (...args)=>logImpl(0, ...args);
+
+  /**
+     __openFiles is a map of sqlite3_file pointers (integers) to
+     metadata related to a given OPFS file handles. The pointers are, in
+     this side of the interface, opaque file handle IDs provided by the
+     synchronous part of this constellation. Each value is an object
+     with a structure demonstrated in the xOpen() impl.
+  */
+  const __openFiles = Object.create(null);
+  /**
+     __implicitLocks is a Set of sqlite3_file pointers (integers) which were
+     "auto-locked".  i.e. those for which we obtained a sync access
+     handle without an explicit xLock() call. Such locks will be
+     released during db connection idle time, whereas a sync access
+     handle obtained via xLock(), or subsequently xLock()'d after
+     auto-acquisition, will not be released until xUnlock() is called.
+
+     Maintenance reminder: if we relinquish auto-locks at the end of the
+     operation which acquires them, we pay a massive performance
+     penalty: speedtest1 benchmarks take up to 4x as long. By delaying
+     the lock release until idle time, the hit is negligible.
+  */
+  const __implicitLocks = new Set();
+
+  /**
+     Expects an OPFS file path. It gets resolved, such that ".."
+     components are properly expanded, and returned. If the 2nd arg is
+     true, the result is returned as an array of path elements, else an
+     absolute path string is returned.
+  */
+  const getResolvedPath = function(filename,splitIt){
+    const p = new URL(
+      filename, 'file://irrelevant'
+    ).pathname;
+    return splitIt ? p.split('/').filter((v)=>!!v) : p;
+  };
+
+  /**
+     Takes the absolute path to a filesystem element. Returns an array
+     of [handleOfContainingDir, filename]. If the 2nd argument is truthy
+     then each directory element leading to the file is created along
+     the way. Throws if any creation or resolution fails.
+  */
+  const getDirForFilename = async function f(absFilename, createDirs = false){
+    const path = getResolvedPath(absFilename, true);
+    const filename = path.pop();
+    let dh = state.rootDir;
+    for(const dirName of path){
+      if(dirName){
+        dh = await dh.getDirectoryHandle(dirName, {create: !!createDirs});
+      }
+    }
+    return [dh, filename];
+  };
+
+  /**
+     If the given file-holding object has a sync handle attached to it,
+     that handle is removed and asynchronously closed. Though it may
+     sound sensible to continue work as soon as the close() returns
+     (noting that it's asynchronous), doing so can cause operations
+     performed soon afterwards, e.g. a call to getSyncHandle(), to fail
+     because they may happen out of order from the close(). OPFS does
+     not guaranty that the actual order of operations is retained in
+     such cases. i.e.  always "await" on the result of this function.
+  */
+  const closeSyncHandle = async (fh)=>{
+    if(fh.syncHandle){
+      log("Closing sync handle for",fh.filenameAbs);
+      const h = fh.syncHandle;
+      delete fh.syncHandle;
+      delete fh.xLock;
+      __implicitLocks.delete(fh.fid);
+      return h.close();
+    }
+  };
+
+  /**
+     A proxy for closeSyncHandle() which is guaranteed to not throw.
+
+     This function is part of a lock/unlock step in functions which
+     require a sync access handle but may be called without xLock()
+     having been called first. Such calls need to release that
+     handle to avoid locking the file for all of time. This is an
+     _attempt_ at reducing cross-tab contention but it may prove
+     to be more of a problem than a solution and may need to be
+     removed.
+  */
+  const closeSyncHandleNoThrow = async (fh)=>{
+    try{await closeSyncHandle(fh)}
+    catch(e){
+      warn("closeSyncHandleNoThrow() ignoring:",e,fh);
+    }
+  };
+
+  /* Release all auto-locks. */
+  const releaseImplicitLocks = async ()=>{
+    if(__implicitLocks.size){
+      /* Release all auto-locks. */
+      for(const fid of __implicitLocks){
+        const fh = __openFiles[fid];
+        await closeSyncHandleNoThrow(fh);
+        log("Auto-unlocked",fid,fh.filenameAbs);
+      }
+    }
+  };
+
+  /**
+     An experiment in improving concurrency by freeing up implicit locks
+     sooner. This is known to impact performance dramatically but it has
+     also shown to improve concurrency considerably.
+
+     If fh.releaseImplicitLocks is truthy and fh is in __implicitLocks,
+     this routine returns closeSyncHandleNoThrow(), else it is a no-op.
+  */
+  const releaseImplicitLock = async (fh)=>{
+    if(fh.releaseImplicitLocks && __implicitLocks.has(fh.fid)){
+      return closeSyncHandleNoThrow(fh);
+    }
+  };
+
+  /**
+     An error class specifically for use with getSyncHandle(), the goal
+     of which is to eventually be able to distinguish unambiguously
+     between locking-related failures and other types, noting that we
+     cannot currently do so because createSyncAccessHandle() does not
+     define its exceptions in the required level of detail.
+
+     2022-11-29: according to:
+
+     https://github.com/whatwg/fs/pull/21
+
+     NoModificationAllowedError will be the standard exception thrown
+     when acquisition of a sync access handle fails due to a locking
+     error. As of this writing, that error type is not visible in the
+     dev console in Chrome v109, nor is it documented in MDN, but an
+     error with that "name" property is being thrown from the OPFS
+     layer.
+  */
+  class GetSyncHandleError extends Error {
+    constructor(errorObject, ...msg){
+      super([
+        ...msg, ': '+errorObject.name+':',
+        errorObject.message
+      ].join(' '), {
+        cause: errorObject
+      });
+      this.name = 'GetSyncHandleError';
+    }
+  };
+
+  /**
+     Attempts to find a suitable SQLITE_xyz result code for Error
+     object e. Returns either such a translation or rc if if it does
+     not know how to translate the exception.
+  */
+  GetSyncHandleError.convertRc = (e,rc)=>{
+    if( e instanceof GetSyncHandleError ){
+      if( e.cause.name==='NoModificationAllowedError'
+        /* Inconsistent exception.name from Chrome/ium with the
+           same exception.message text: */
+          || (e.cause.name==='DOMException'
+              && 0===e.cause.message.indexOf('Access Handles cannot')) ){
+        return state.sq3Codes.SQLITE_BUSY;
+      }else if( 'NotFoundError'===e.cause.name ){
+        /**
+           Maintenance reminder: SQLITE_NOTFOUND, though it looks like
+           a good match, has different semantics than NotFoundError
+           and is not suitable here.
+        */
+        return state.sq3Codes.SQLITE_CANTOPEN;
+      }
+    }else if( 'NotFoundError'===e?.name ){
+      return state.sq3Codes.SQLITE_CANTOPEN;
+    }
+    return rc;
+  };
+
+  /**
+     Returns the sync access handle associated with the given file
+     handle object (which must be a valid handle object, as created by
+     xOpen()), lazily opening it if needed.
+
+     In order to help alleviate cross-tab contention for a dabase, if
+     an exception is thrown while acquiring the handle, this routine
+     will wait briefly and try again, up to some fixed number of
+     times. If acquisition still fails at that point it will give up
+     and propagate the exception. Client-level code will see that as
+     an I/O error.
+
+     2024-06-12: there is a rare race condition here which has been
+     reported a single time:
+
+     https://sqlite.org/forum/forumpost/9ee7f5340802d600
+
+     What appears to be happening is that file we're waiting for a
+     lock on is deleted while we wait. What currently happens here is
+     that a locking exception is thrown but the exception type is
+     NotFoundError. In such cases, we very probably should attempt to
+     re-open/re-create the file an obtain the lock on it (noting that
+     there's another race condition there). That's easy to say but
+     creating a viable test for that condition has proven challenging
+     so far.
+  */
+  const getSyncHandle = async (fh,opName)=>{
+    if(!fh.syncHandle){
+      const t = performance.now();
+      log("Acquiring sync handle for",fh.filenameAbs);
+      const maxTries = 6,
+            msBase = state.asyncIdleWaitTime * 2;
+      let i = 1, ms = msBase;
+      for(; true; ms = msBase * ++i){
+        try {
+          //if(i<3) toss("Just testing getSyncHandle() wait-and-retry.");
+          //TODO? A config option which tells it to throw here
+          //randomly every now and then, for testing purposes.
+          fh.syncHandle = await fh.fileHandle.createSyncAccessHandle();
+          break;
+        }catch(e){
+          if(i === maxTries){
+            throw new GetSyncHandleError(
+              e, "Error getting sync handle for",opName+"().",maxTries,
+              "attempts failed.",fh.filenameAbs
+            );
+          }
+          warn("Error getting sync handle for",opName+"(). Waiting",ms,
+               "ms and trying again.",fh.filenameAbs,e);
+          Atomics.wait(state.sabOPView, state.opIds.retry, 0, ms);
+        }
+      }
+      log("Got",opName+"() sync handle for",fh.filenameAbs,
+          'in',performance.now() - t,'ms');
+      if(!fh.xLock){
+        __implicitLocks.add(fh.fid);
+        log("Acquired implicit lock for",opName+"()",fh.fid,fh.filenameAbs);
+      }
+    }
+    return fh.syncHandle;
+  };
+
+  /**
+     Stores the given value at state.sabOPView[state.opIds.rc] and then
+     Atomics.notify()'s it.
+  */
+  const storeAndNotify = (opName, value)=>{
+    log(opName+"() => notify(",value,")");
+    Atomics.store(state.sabOPView, state.opIds.rc, value);
+    Atomics.notify(state.sabOPView, state.opIds.rc);
+  };
+
+  /**
+     Throws if fh is a file-holding object which is flagged as read-only.
+  */
+  const affirmNotRO = function(opName,fh){
+    if(fh.readOnly) toss(opName+"(): File is read-only: "+fh.filenameAbs);
+  };
+
+  /**
+     Gets set to true by the 'opfs-async-shutdown' command to quit the
+     wait loop. This is only intended for debugging purposes: we cannot
+     inspect this file's state while the tight waitLoop() is running and
+     need a way to stop that loop for introspection purposes.
+  */
+  let flagAsyncShutdown = false;
+
+  /**
+     Asynchronous wrappers for sqlite3_vfs and sqlite3_io_methods
+     methods, as well as helpers like mkdir().
+  */
+  const vfsAsyncImpls = {
+    'opfs-async-shutdown': async ()=>{
+      flagAsyncShutdown = true;
+      storeAndNotify('opfs-async-shutdown', 0);
+    },
+    mkdir: async (dirname)=>{
+      let rc = 0;
+      try {
+        await getDirForFilename(dirname+"/filepart", true);
+      }catch(e){
+        state.s11n.storeException(2,e);
+        rc = state.sq3Codes.SQLITE_IOERR;
+      }
+      storeAndNotify('mkdir', rc);
+    },
+    xAccess: async (filename)=>{
+      /* OPFS cannot support the full range of xAccess() queries
+         sqlite3 calls for. We can essentially just tell if the file
+         is accessible, but if it is then it's automatically writable
+         (unless it's locked, which we cannot(?) know without trying
+         to open it). OPFS does not have the notion of read-only.
+
+         The return semantics of this function differ from sqlite3's
+         xAccess semantics because we are limited in what we can
+         communicate back to our synchronous communication partner: 0 =
+         accessible, non-0 means not accessible.
+      */
+      let rc = 0;
+      try{
+        const [dh, fn] = await getDirForFilename(filename);
+        await dh.getFileHandle(fn);
+      }catch(e){
+        state.s11n.storeException(2,e);
+        rc = state.sq3Codes.SQLITE_IOERR;
+      }
+      storeAndNotify('xAccess', rc);
+    },
+    xClose: async function(fid/*sqlite3_file pointer*/){
+      const opName = 'xClose';
+      __implicitLocks.delete(fid);
+      const fh = __openFiles[fid];
+      let rc = 0;
+      if(fh){
+        delete __openFiles[fid];
+        await closeSyncHandle(fh);
+        if(fh.deleteOnClose){
+          try{ await fh.dirHandle.removeEntry(fh.filenamePart) }
+          catch(e){ warn("Ignoring dirHandle.removeEntry() failure of",fh,e) }
+        }
+      }else{
+        state.s11n.serialize();
+        rc = state.sq3Codes.SQLITE_NOTFOUND;
+      }
+      storeAndNotify(opName, rc);
+    },
+    xDelete: async function(...args){
+      const rc = await vfsAsyncImpls.xDeleteNoWait(...args);
+      storeAndNotify('xDelete', rc);
+    },
+    xDeleteNoWait: async function(filename, syncDir = 0, recursive = false){
+      /* The syncDir flag is, for purposes of the VFS API's semantics,
+         ignored here. However, if it has the value 0x1234 then: after
+         deleting the given file, recursively try to delete any empty
+         directories left behind in its wake (ignoring any errors and
+         stopping at the first failure).
+
+         That said: we don't know for sure that removeEntry() fails if
+         the dir is not empty because the API is not documented. It has,
+         however, a "recursive" flag which defaults to false, so
+         presumably it will fail if the dir is not empty and that flag
+         is false.
+      */
+      let rc = 0;
+      try {
+        while(filename){
+          const [hDir, filenamePart] = await getDirForFilename(filename, false);
+          if(!filenamePart) break;
+          await hDir.removeEntry(filenamePart, {recursive});
+          if(0x1234 !== syncDir) break;
+          recursive = false;
+          filename = getResolvedPath(filename, true);
+          filename.pop();
+          filename = filename.join('/');
+        }
+      }catch(e){
+        state.s11n.storeException(2,e);
+        rc = state.sq3Codes.SQLITE_IOERR_DELETE;
+      }
+      return rc;
+    },
+    xFileSize: async function(fid/*sqlite3_file pointer*/){
+      const fh = __openFiles[fid];
+      let rc = 0;
+      try{
+        const sz = await (await getSyncHandle(fh,'xFileSize')).getSize();
+        state.s11n.serialize(Number(sz));
+      }catch(e){
+        state.s11n.storeException(1,e);
+        rc = GetSyncHandleError.convertRc(e,state.sq3Codes.SQLITE_IOERR);
+      }
+      await releaseImplicitLock(fh);
+      storeAndNotify('xFileSize', rc);
+    },
+    xLock: async function(fid/*sqlite3_file pointer*/,
+                          lockType/*SQLITE_LOCK_...*/){
+      const fh = __openFiles[fid];
+      let rc = 0;
+      const oldLockType = fh.xLock;
+      fh.xLock = lockType;
+      if( !fh.syncHandle ){
+        try {
+          await getSyncHandle(fh,'xLock');
+          __implicitLocks.delete(fid);
+        }catch(e){
+          state.s11n.storeException(1,e);
+          rc = GetSyncHandleError.convertRc(e,state.sq3Codes.SQLITE_IOERR_LOCK);
+          fh.xLock = oldLockType;
+        }
+      }
+      storeAndNotify('xLock',rc);
+    },
+    xOpen: async function(fid/*sqlite3_file pointer*/, filename,
+                          flags/*SQLITE_OPEN_...*/,
+                          opfsFlags/*OPFS_...*/){
+      const opName = 'xOpen';
+      const create = (state.sq3Codes.SQLITE_OPEN_CREATE & flags);
+      try{
+        let hDir, filenamePart;
+        try {
+          [hDir, filenamePart] = await getDirForFilename(filename, !!create);
+        }catch(e){
+          state.s11n.storeException(1,e);
+          storeAndNotify(opName, state.sq3Codes.SQLITE_NOTFOUND);
+          return;
+        }
+        if( state.opfsFlags.OPFS_UNLINK_BEFORE_OPEN & opfsFlags ){
+          try{
+            await hDir.removeEntry(filenamePart);
+          }catch(e){
+            /* ignoring */
+            //warn("Ignoring failed Unlink of",filename,":",e);
+          }
+        }
+        const hFile = await hDir.getFileHandle(filenamePart, {create});
+        const fh = Object.assign(Object.create(null),{
+          fid: fid,
+          filenameAbs: filename,
+          filenamePart: filenamePart,
+          dirHandle: hDir,
+          fileHandle: hFile,
+          sabView: state.sabFileBufView,
+          readOnly: !create && !!(state.sq3Codes.SQLITE_OPEN_READONLY & flags),
+          deleteOnClose: !!(state.sq3Codes.SQLITE_OPEN_DELETEONCLOSE & flags)
+        });
+        fh.releaseImplicitLocks =
+          (opfsFlags & state.opfsFlags.OPFS_UNLOCK_ASAP)
+          || state.opfsFlags.defaultUnlockAsap;
+        __openFiles[fid] = fh;
+        storeAndNotify(opName, 0);
+      }catch(e){
+        error(opName,e);
+        state.s11n.storeException(1,e);
+        storeAndNotify(opName, state.sq3Codes.SQLITE_IOERR);
+      }
+    },
+    xRead: async function(fid/*sqlite3_file pointer*/,n,offset64){
+      let rc = 0, nRead;
+      const fh = __openFiles[fid];
+      try{
+        nRead = (await getSyncHandle(fh,'xRead')).read(
+          fh.sabView.subarray(0, n),
+          {at: Number(offset64)}
+        );
+        if(nRead < n){/* Zero-fill remaining bytes */
+          fh.sabView.fill(0, nRead, n);
+          rc = state.sq3Codes.SQLITE_IOERR_SHORT_READ;
+        }
+      }catch(e){
+        error("xRead() failed",e,fh);
+        state.s11n.storeException(1,e);
+        rc = GetSyncHandleError.convertRc(e,state.sq3Codes.SQLITE_IOERR_READ);
+      }
+      await releaseImplicitLock(fh);
+      storeAndNotify('xRead',rc);
+    },
+    xSync: async function(fid/*sqlite3_file pointer*/,flags/*ignored*/){
+      const fh = __openFiles[fid];
+      let rc = 0;
+      if(!fh.readOnly && fh.syncHandle){
+        try {
+          await fh.syncHandle.flush();
+        }catch(e){
+          state.s11n.storeException(2,e);
+          rc = state.sq3Codes.SQLITE_IOERR_FSYNC;
+        }
+      }
+      storeAndNotify('xSync',rc);
+    },
+    xTruncate: async function(fid/*sqlite3_file pointer*/,size){
+      let rc = 0;
+      const fh = __openFiles[fid];
+      try{
+        affirmNotRO('xTruncate', fh);
+        await (await getSyncHandle(fh,'xTruncate')).truncate(size);
+      }catch(e){
+        error("xTruncate():",e,fh);
+        state.s11n.storeException(2,e);
+        rc = GetSyncHandleError.convertRc(e,state.sq3Codes.SQLITE_IOERR_TRUNCATE);
+      }
+      await releaseImplicitLock(fh);
+      storeAndNotify('xTruncate',rc);
+    },
+    xUnlock: async function(fid/*sqlite3_file pointer*/,
+                            lockType/*SQLITE_LOCK_...*/){
+      let rc = 0;
+      const fh = __openFiles[fid];
+      if( fh.syncHandle
+          && state.sq3Codes.SQLITE_LOCK_NONE===lockType
+          /* Note that we do not differentiate between lock types in
+             this VFS. We're either locked or unlocked. */ ){
+        try { await closeSyncHandle(fh) }
+        catch(e){
+          state.s11n.storeException(1,e);
+          rc = state.sq3Codes.SQLITE_IOERR_UNLOCK;
+        }
+      }
+      storeAndNotify('xUnlock',rc);
+    },
+    xWrite: async function(fid/*sqlite3_file pointer*/,n,offset64){
+      let rc;
+      const fh = __openFiles[fid];
+      try{
+        affirmNotRO('xWrite', fh);
+        rc = (
+          n === (await getSyncHandle(fh,'xWrite'))
+            .write(fh.sabView.subarray(0, n),
+                   {at: Number(offset64)})
+        ) ? 0 : state.sq3Codes.SQLITE_IOERR_WRITE;
+      }catch(e){
+        error("xWrite():",e,fh);
+        state.s11n.storeException(1,e);
+        rc = GetSyncHandleError.convertRc(e,state.sq3Codes.SQLITE_IOERR_WRITE);
+      }
+      await releaseImplicitLock(fh);
+      storeAndNotify('xWrite',rc);
+    }
+  }/*vfsAsyncImpls*/;
+
+  const initS11n = ()=>{
+    /**
+       ACHTUNG: this code is 100% duplicated in the other half of this
+       proxy! The documentation is maintained in the "synchronous half".
+    */
+    if(state.s11n) return state.s11n;
+    const textDecoder = new TextDecoder(),
+          textEncoder = new TextEncoder('utf-8'),
+          viewU8 = new Uint8Array(state.sabIO, state.sabS11nOffset, state.sabS11nSize),
+          viewDV = new DataView(state.sabIO, state.sabS11nOffset, state.sabS11nSize);
+    state.s11n = Object.create(null);
+    const TypeIds = Object.create(null);
+    TypeIds.number  = { id: 1, size: 8, getter: 'getFloat64', setter: 'setFloat64' };
+    TypeIds.bigint  = { id: 2, size: 8, getter: 'getBigInt64', setter: 'setBigInt64' };
+    TypeIds.boolean = { id: 3, size: 4, getter: 'getInt32', setter: 'setInt32' };
+    TypeIds.string =  { id: 4 };
+    const getTypeId = (v)=>(
+      TypeIds[typeof v]
+        || toss("Maintenance required: this value type cannot be serialized.",v)
+    );
+    const getTypeIdById = (tid)=>{
+      switch(tid){
+          case TypeIds.number.id: return TypeIds.number;
+          case TypeIds.bigint.id: return TypeIds.bigint;
+          case TypeIds.boolean.id: return TypeIds.boolean;
+          case TypeIds.string.id: return TypeIds.string;
+          default: toss("Invalid type ID:",tid);
+      }
+    };
+    state.s11n.deserialize = function(clear=false){
+      const argc = viewU8[0];
+      const rc = argc ? [] : null;
+      if(argc){
+        const typeIds = [];
+        let offset = 1, i, n, v;
+        for(i = 0; i < argc; ++i, ++offset){
+          typeIds.push(getTypeIdById(viewU8[offset]));
+        }
+        for(i = 0; i < argc; ++i){
+          const t = typeIds[i];
+          if(t.getter){
+            v = viewDV[t.getter](offset, state.littleEndian);
+            offset += t.size;
+          }else{/*String*/
+            n = viewDV.getInt32(offset, state.littleEndian);
+            offset += 4;
+            v = textDecoder.decode(viewU8.slice(offset, offset+n));
+            offset += n;
+          }
+          rc.push(v);
+        }
+      }
+      if(clear) viewU8[0] = 0;
+      //log("deserialize:",argc, rc);
+      return rc;
+    };
+    state.s11n.serialize = function(...args){
+      if(args.length){
+        //log("serialize():",args);
+        const typeIds = [];
+        let i = 0, offset = 1;
+        viewU8[0] = args.length & 0xff /* header = # of args */;
+        for(; i < args.length; ++i, ++offset){
+          /* Write the TypeIds.id value into the next args.length
+             bytes. */
+          typeIds.push(getTypeId(args[i]));
+          viewU8[offset] = typeIds[i].id;
+        }
+        for(i = 0; i < args.length; ++i) {
+          /* Deserialize the following bytes based on their
+             corresponding TypeIds.id from the header. */
+          const t = typeIds[i];
+          if(t.setter){
+            viewDV[t.setter](offset, args[i], state.littleEndian);
+            offset += t.size;
+          }else{/*String*/
+            const s = textEncoder.encode(args[i]);
+            viewDV.setInt32(offset, s.byteLength, state.littleEndian);
+            offset += 4;
+            viewU8.set(s, offset);
+            offset += s.byteLength;
+          }
+        }
+        //log("serialize() result:",viewU8.slice(0,offset));
+      }else{
+        viewU8[0] = 0;
+      }
+    };
+
+    state.s11n.storeException = state.asyncS11nExceptions
+      ? ((priority,e)=>{
+        if(priority<=state.asyncS11nExceptions){
+          state.s11n.serialize([e.name,': ',e.message].join(""));
+        }
+      })
+      : ()=>{};
+
+    return state.s11n;
+  }/*initS11n()*/;
+
+  const waitLoop = async function f(){
+    const opHandlers = Object.create(null);
+    for(let k of Object.keys(state.opIds)){
+      const vi = vfsAsyncImpls[k];
+      if(!vi) continue;
+      const o = Object.create(null);
+      opHandlers[state.opIds[k]] = o;
+      o.key = k;
+      o.f = vi;
+    }
+    while(!flagAsyncShutdown){
+      try {
+        if('not-equal'!==Atomics.wait(
+          state.sabOPView, state.opIds.whichOp, 0, state.asyncIdleWaitTime
+        )){
+          /* Maintenance note: we compare against 'not-equal' because
+
+             https://github.com/tomayac/sqlite-wasm/issues/12
+
+             is reporting that this occassionally, under high loads,
+             returns 'ok', which leads to the whichOp being 0 (which
+             isn't a valid operation ID and leads to an exception,
+             along with a corresponding ugly console log
+             message). Unfortunately, the conditions for that cannot
+             be reliably reproduced. The only place in our code which
+             writes a 0 to the state.opIds.whichOp SharedArrayBuffer
+             index is a few lines down from here, and that instance
+             is required in order for clear communication between
+             the sync half of this proxy and this half.
+          */
+          await releaseImplicitLocks();
+          continue;
+        }
+        const opId = Atomics.load(state.sabOPView, state.opIds.whichOp);
+        Atomics.store(state.sabOPView, state.opIds.whichOp, 0);
+        const hnd = opHandlers[opId] ?? toss("No waitLoop handler for whichOp #",opId);
+        const args = state.s11n.deserialize(
+          true /* clear s11n to keep the caller from confusing this with
+                  an exception string written by the upcoming
+                  operation */
+        ) || [];
+        //warn("waitLoop() whichOp =",opId, hnd, args);
+        if(hnd.f) await hnd.f(...args);
+        else error("Missing callback for opId",opId);
+      }catch(e){
+        error('in waitLoop():',e);
+      }
+    }
+  };
+
+  navigator.storage.getDirectory().then(function(d){
+    state.rootDir = d;
+    globalThis.onmessage = function({data}){
+      switch(data.type){
+          case 'opfs-async-init':{
+            /* Receive shared state from synchronous partner */
+            const opt = data.args;
+            for(const k in opt) state[k] = opt[k];
+            state.verbose = opt.verbose ?? 1;
+            state.sabOPView = new Int32Array(state.sabOP);
+            state.sabFileBufView = new Uint8Array(state.sabIO, 0, state.fileBufferSize);
+            state.sabS11nView = new Uint8Array(state.sabIO, state.sabS11nOffset, state.sabS11nSize);
+            Object.keys(vfsAsyncImpls).forEach((k)=>{
+              if(!Number.isFinite(state.opIds[k])){
+                toss("Maintenance required: missing state.opIds[",k,"]");
+              }
+            });
+            initS11n();
+            log("init state",state);
+            wPost('opfs-async-inited');
+            waitLoop();
+            break;
+          }
+          case 'opfs-async-restart':
+            if(flagAsyncShutdown){
+              warn("Restarting after opfs-async-shutdown. Might or might not work.");
+              flagAsyncShutdown = false;
+              waitLoop();
+            }
+            break;
+      }
+    };
+    wPost('opfs-async-loaded');
+  }).catch((e)=>error("error initializing OPFS asyncer:",e));
+}/*installAsyncProxy()*/;
+if(!globalThis.SharedArrayBuffer){
+  wPost('opfs-unavailable', "Missing SharedArrayBuffer API.",
+        "The server must emit the COOP/COEP response headers to enable that.");
+}else if(!globalThis.Atomics){
+  wPost('opfs-unavailable', "Missing Atomics API.",
+        "The server must emit the COOP/COEP response headers to enable that.");
+}else if(!globalThis.FileSystemHandle ||
+         !globalThis.FileSystemDirectoryHandle ||
+         !globalThis.FileSystemFileHandle ||
+         !globalThis.FileSystemFileHandle.prototype.createSyncAccessHandle ||
+         !navigator?.storage?.getDirectory){
+  wPost('opfs-unavailable',"Missing required OPFS APIs.");
+}else{
+  installAsyncProxy();
+}
diff --git a/ext/wasm/api/sqlite3-vfs-helper.c-pp.js b/ext/wasm/api/sqlite3-vfs-helper.c-pp.js
new file mode 100644
index 0000000000000000000000000000000000000000..4d29c7b91a3572b98c94b110f59f44cb09e76567
--- /dev/null
+++ b/ext/wasm/api/sqlite3-vfs-helper.c-pp.js
@@ -0,0 +1,103 @@
+/*
+** 2022-11-30
+**
+** The author disclaims copyright to this source code.  In place of a
+** legal notice, here is a blessing:
+**
+** *   May you do good and not evil.
+** *   May you find forgiveness for yourself and forgive others.
+** *   May you share freely, never taking more than you give.
+*/
+
+/**
+   This file installs sqlite3.vfs, a namespace of helpers for use in
+   the creation of JavaScript implementations of sqlite3_vfs.
+*/
+'use strict';
+globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
+  const wasm = sqlite3.wasm, capi = sqlite3.capi, toss = sqlite3.util.toss3;
+  const vfs = Object.create(null);
+  sqlite3.vfs = vfs;
+
+  /**
+     Uses sqlite3_vfs_register() to register this
+     sqlite3.capi.sqlite3_vfs instance. This object must have already
+     been filled out properly. If the first argument is truthy, the
+     VFS is registered as the default VFS, else it is not.
+
+     On success, returns this object. Throws on error.
+  */
+  capi.sqlite3_vfs.prototype.registerVfs = function(asDefault=false){
+    if(!(this instanceof sqlite3.capi.sqlite3_vfs)){
+      toss("Expecting a sqlite3_vfs-type argument.");
+    }
+    const rc = capi.sqlite3_vfs_register(this, asDefault ? 1 : 0);
+    if(rc){
+      toss("sqlite3_vfs_register(",this,") failed with rc",rc);
+    }
+    if(this.pointer !== capi.sqlite3_vfs_find(this.$zName)){
+      toss("BUG: sqlite3_vfs_find(vfs.$zName) failed for just-installed VFS",
+           this);
+    }
+    return this;
+  };
+
+  /**
+     A wrapper for
+     sqlite3.StructBinder.StructType.prototype.installMethods() or
+     registerVfs() to reduce installation of a VFS and/or its I/O
+     methods to a single call.
+
+     Accepts an object which contains the properties "io" and/or
+     "vfs", each of which is itself an object with following properties:
+
+     - `struct`: an sqlite3.StructBinder.StructType-type struct. This
+       must be a populated (except for the methods) object of type
+       sqlite3_io_methods (for the "io" entry) or sqlite3_vfs (for the
+       "vfs" entry).
+
+     - `methods`: an object mapping sqlite3_io_methods method names
+       (e.g. 'xClose') to JS implementations of those methods. The JS
+       implementations must be call-compatible with their native
+       counterparts.
+
+     For each of those object, this function passes its (`struct`,
+     `methods`, (optional) `applyArgcCheck`) properties to
+     installMethods().
+
+     If the `vfs` entry is set then:
+
+     - Its `struct` property's registerVfs() is called. The
+       `vfs` entry may optionally have an `asDefault` property, which
+       gets passed as the argument to registerVfs().
+
+     - If `struct.$zName` is falsy and the entry has a string-type
+       `name` property, `struct.$zName` is set to the C-string form of
+       that `name` value before registerVfs() is called. That string
+       gets added to the on-dispose state of the struct.
+
+     On success returns this object. Throws on error.
+  */
+  vfs.installVfs = function(opt){
+    let count = 0;
+    const propList = ['io','vfs'];
+    for(const key of propList){
+      const o = opt[key];
+      if(o){
+        ++count;
+        o.struct.installMethods(o.methods, !!o.applyArgcCheck);
+        if('vfs'===key){
+          if(!o.struct.$zName && 'string'===typeof o.name){
+            o.struct.addOnDispose(
+              o.struct.$zName = wasm.allocCString(o.name)
+            );
+          }
+          o.struct.registerVfs(!!o.asDefault);
+        }
+      }
+    }
+    if(!count) toss("Misuse: installVfs() options object requires at least",
+                    "one of:", propList);
+    return this;
+  };
+}/*sqlite3ApiBootstrap.initializers.push()*/);
diff --git a/ext/wasm/api/sqlite3-vfs-opfs-sahpool.c-pp.js b/ext/wasm/api/sqlite3-vfs-opfs-sahpool.c-pp.js
new file mode 100644
index 0000000000000000000000000000000000000000..6551b5c89c0b679818ad6ac17d65204b333dafcf
--- /dev/null
+++ b/ext/wasm/api/sqlite3-vfs-opfs-sahpool.c-pp.js
@@ -0,0 +1,1301 @@
+//#ifnot target=node
+/*
+  2023-07-14
+
+  The author disclaims copyright to this source code.  In place of a
+  legal notice, here is a blessing:
+
+  *   May you do good and not evil.
+  *   May you find forgiveness for yourself and forgive others.
+  *   May you share freely, never taking more than you give.
+
+  ***********************************************************************
+
+  This file holds a sqlite3_vfs backed by OPFS storage which uses a
+  different implementation strategy than the "opfs" VFS. This one is a
+  port of Roy Hashimoto's OPFS SyncAccessHandle pool:
+
+  https://github.com/rhashimoto/wa-sqlite/blob/master/src/examples/AccessHandlePoolVFS.js
+
+  As described at:
+
+  https://github.com/rhashimoto/wa-sqlite/discussions/67
+
+  with Roy's explicit permission to permit us to port his to our
+  infrastructure rather than having to clean-room reverse-engineer it:
+
+  https://sqlite.org/forum/forumpost/e140d84e71
+
+  Primary differences from the "opfs" VFS include:
+
+  - This one avoids the need for a sub-worker to synchronize
+  communication between the synchronous C API and the
+  only-partly-synchronous OPFS API.
+
+  - It does so by opening a fixed number of OPFS files at
+  library-level initialization time, obtaining SyncAccessHandles to
+  each, and manipulating those handles via the synchronous sqlite3_vfs
+  interface. If it cannot open them (e.g. they are already opened by
+  another tab) then the VFS will not be installed.
+
+  - Because of that, this one lacks all library-level concurrency
+  support.
+
+  - Also because of that, it does not require the SharedArrayBuffer,
+  so can function without the COOP/COEP HTTP response headers.
+
+  - It can hypothetically support Safari 16.4+, whereas the "opfs" VFS
+  requires v17 due to a subworker/storage bug in 16.x which makes it
+  incompatible with that VFS.
+
+  - This VFS requires the "semi-fully-sync" FileSystemSyncAccessHandle
+  (hereafter "SAH") APIs released with Chrome v108 (and all other
+  major browsers released since March 2023). If that API is not
+  detected, the VFS is not registered.
+*/
+globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
+  'use strict';
+  const toss = sqlite3.util.toss;
+  const toss3 = sqlite3.util.toss3;
+  const initPromises = Object.create(null) /* cache of (name:result) of VFS init results */;
+  const capi = sqlite3.capi;
+  const util = sqlite3.util;
+  const wasm = sqlite3.wasm;
+  // Config opts for the VFS...
+  const SECTOR_SIZE = 4096;
+  const HEADER_MAX_PATH_SIZE = 512;
+  const HEADER_FLAGS_SIZE = 4;
+  const HEADER_DIGEST_SIZE = 8;
+  const HEADER_CORPUS_SIZE = HEADER_MAX_PATH_SIZE + HEADER_FLAGS_SIZE;
+  const HEADER_OFFSET_FLAGS = HEADER_MAX_PATH_SIZE;
+  const HEADER_OFFSET_DIGEST = HEADER_CORPUS_SIZE;
+  const HEADER_OFFSET_DATA = SECTOR_SIZE;
+  /* Bitmask of file types which may persist across sessions.
+     SQLITE_OPEN_xyz types not listed here may be inadvertently
+     left in OPFS but are treated as transient by this VFS and
+     they will be cleaned up during VFS init. */
+  const PERSISTENT_FILE_TYPES =
+        capi.SQLITE_OPEN_MAIN_DB |
+        capi.SQLITE_OPEN_MAIN_JOURNAL |
+        capi.SQLITE_OPEN_SUPER_JOURNAL |
+        capi.SQLITE_OPEN_WAL;
+
+  /** Subdirectory of the VFS's space where "opaque" (randomly-named)
+      files are stored. Changing this effectively invalidates the data
+      stored under older names (orphaning it), so don't do that. */
+  const OPAQUE_DIR_NAME = ".opaque";
+
+  /**
+     Returns short a string of random alphanumeric characters
+     suitable for use as a random filename.
+  */
+  const getRandomName = ()=>Math.random().toString(36).slice(2);
+
+  const textDecoder = new TextDecoder();
+  const textEncoder = new TextEncoder();
+
+  const optionDefaults = Object.assign(Object.create(null),{
+    name: 'opfs-sahpool',
+    directory: undefined /* derived from .name */,
+    initialCapacity: 6,
+    clearOnInit: false,
+    /* Logging verbosity 3+ == everything, 2 == warnings+errors, 1 ==
+       errors only. */
+    verbosity: 2,
+    forceReinitIfPreviouslyFailed: false
+  });
+
+  /** Logging routines, from most to least serious. */
+  const loggers = [
+    sqlite3.config.error,
+    sqlite3.config.warn,
+    sqlite3.config.log
+  ];
+  const log = sqlite3.config.log;
+  const warn = sqlite3.config.warn;
+  const error = sqlite3.config.error;
+
+  /* Maps (sqlite3_vfs*) to OpfsSAHPool instances */
+  const __mapVfsToPool = new Map();
+  const getPoolForVfs = (pVfs)=>__mapVfsToPool.get(pVfs);
+  const setPoolForVfs = (pVfs,pool)=>{
+    if(pool) __mapVfsToPool.set(pVfs, pool);
+    else __mapVfsToPool.delete(pVfs);
+  };
+  /* Maps (sqlite3_file*) to OpfsSAHPool instances */
+  const __mapSqlite3File = new Map();
+  const getPoolForPFile = (pFile)=>__mapSqlite3File.get(pFile);
+  const setPoolForPFile = (pFile,pool)=>{
+    if(pool) __mapSqlite3File.set(pFile, pool);
+    else __mapSqlite3File.delete(pFile);
+  };
+
+  /**
+     Impls for the sqlite3_io_methods methods. Maintenance reminder:
+     members are in alphabetical order to simplify finding them.
+  */
+  const ioMethods = {
+    xCheckReservedLock: function(pFile,pOut){
+      const pool = getPoolForPFile(pFile);
+      pool.log('xCheckReservedLock');
+      pool.storeErr();
+      wasm.poke32(pOut, 1);
+      return 0;
+    },
+    xClose: function(pFile){
+      const pool = getPoolForPFile(pFile);
+      pool.storeErr();
+      const file = pool.getOFileForS3File(pFile);
+      if(file) {
+        try{
+          pool.log(`xClose ${file.path}`);
+          pool.mapS3FileToOFile(pFile, false);
+          file.sah.flush();
+          if(file.flags & capi.SQLITE_OPEN_DELETEONCLOSE){
+            pool.deletePath(file.path);
+          }
+        }catch(e){
+          return pool.storeErr(e, capi.SQLITE_IOERR);
+        }
+      }
+      return 0;
+    },
+    xDeviceCharacteristics: function(pFile){
+      return capi.SQLITE_IOCAP_UNDELETABLE_WHEN_OPEN;
+    },
+    xFileControl: function(pFile, opId, pArg){
+      return capi.SQLITE_NOTFOUND;
+    },
+    xFileSize: function(pFile,pSz64){
+      const pool = getPoolForPFile(pFile);
+      pool.log(`xFileSize`);
+      const file = pool.getOFileForS3File(pFile);
+      const size = file.sah.getSize() - HEADER_OFFSET_DATA;
+      //log(`xFileSize ${file.path} ${size}`);
+      wasm.poke64(pSz64, BigInt(size));
+      return 0;
+    },
+    xLock: function(pFile,lockType){
+      const pool = getPoolForPFile(pFile);
+      pool.log(`xLock ${lockType}`);
+      pool.storeErr();
+      const file = pool.getOFileForS3File(pFile);
+      file.lockType = lockType;
+      return 0;
+    },
+    xRead: function(pFile,pDest,n,offset64){
+      const pool = getPoolForPFile(pFile);
+      pool.storeErr();
+      const file = pool.getOFileForS3File(pFile);
+      pool.log(`xRead ${file.path} ${n} @ ${offset64}`);
+      try {
+        const nRead = file.sah.read(
+          wasm.heap8u().subarray(pDest, pDest+n),
+          {at: HEADER_OFFSET_DATA + Number(offset64)}
+        );
+        if(nRead < n){
+          wasm.heap8u().fill(0, pDest + nRead, pDest + n);
+          return capi.SQLITE_IOERR_SHORT_READ;
+        }
+        return 0;
+      }catch(e){
+        return pool.storeErr(e, capi.SQLITE_IOERR);
+      }
+    },
+    xSectorSize: function(pFile){
+      return SECTOR_SIZE;
+    },
+    xSync: function(pFile,flags){
+      const pool = getPoolForPFile(pFile);
+      pool.log(`xSync ${flags}`);
+      pool.storeErr();
+      const file = pool.getOFileForS3File(pFile);
+      //log(`xSync ${file.path} ${flags}`);
+      try{
+        file.sah.flush();
+        return 0;
+      }catch(e){
+        return pool.storeErr(e, capi.SQLITE_IOERR);
+      }
+    },
+    xTruncate: function(pFile,sz64){
+      const pool = getPoolForPFile(pFile);
+      pool.log(`xTruncate ${sz64}`);
+      pool.storeErr();
+      const file = pool.getOFileForS3File(pFile);
+      //log(`xTruncate ${file.path} ${iSize}`);
+      try{
+        file.sah.truncate(HEADER_OFFSET_DATA + Number(sz64));
+        return 0;
+      }catch(e){
+        return pool.storeErr(e, capi.SQLITE_IOERR);
+      }
+    },
+    xUnlock: function(pFile,lockType){
+      const pool = getPoolForPFile(pFile);
+      pool.log('xUnlock');
+      const file = pool.getOFileForS3File(pFile);
+      file.lockType = lockType;
+      return 0;
+    },
+    xWrite: function(pFile,pSrc,n,offset64){
+      const pool = getPoolForPFile(pFile);
+      pool.storeErr();
+      const file = pool.getOFileForS3File(pFile);
+      pool.log(`xWrite ${file.path} ${n} ${offset64}`);
+      try{
+        const nBytes = file.sah.write(
+          wasm.heap8u().subarray(pSrc, pSrc+n),
+          { at: HEADER_OFFSET_DATA + Number(offset64) }
+        );
+        return n===nBytes ? 0 : toss("Unknown write() failure.");
+      }catch(e){
+        return pool.storeErr(e, capi.SQLITE_IOERR);
+      }
+    }
+  }/*ioMethods*/;
+
+  const opfsIoMethods = new capi.sqlite3_io_methods();
+  opfsIoMethods.$iVersion = 1;
+  sqlite3.vfs.installVfs({
+    io: {struct: opfsIoMethods, methods: ioMethods}
+  });
+
+  /**
+     Impls for the sqlite3_vfs methods. Maintenance reminder: members
+     are in alphabetical order to simplify finding them.
+  */
+  const vfsMethods = {
+    xAccess: function(pVfs,zName,flags,pOut){
+      //log(`xAccess ${wasm.cstrToJs(zName)}`);
+      const pool = getPoolForVfs(pVfs);
+      pool.storeErr();
+      try{
+        const name = pool.getPath(zName);
+        wasm.poke32(pOut, pool.hasFilename(name) ? 1 : 0);
+      }catch(e){
+        /*ignored*/
+        wasm.poke32(pOut, 0);
+      }
+      return 0;
+    },
+    xCurrentTime: function(pVfs,pOut){
+      wasm.poke(pOut, 2440587.5 + (new Date().getTime()/86400000),
+                'double');
+      return 0;
+    },
+    xCurrentTimeInt64: function(pVfs,pOut){
+      wasm.poke(pOut, (2440587.5 * 86400000) + new Date().getTime(),
+                'i64');
+      return 0;
+    },
+    xDelete: function(pVfs, zName, doSyncDir){
+      const pool = getPoolForVfs(pVfs);
+      pool.log(`xDelete ${wasm.cstrToJs(zName)}`);
+      pool.storeErr();
+      try{
+        pool.deletePath(pool.getPath(zName));
+        return 0;
+      }catch(e){
+        pool.storeErr(e);
+        return capi.SQLITE_IOERR_DELETE;
+      }
+    },
+    xFullPathname: function(pVfs,zName,nOut,pOut){
+      //const pool = getPoolForVfs(pVfs);
+      //pool.log(`xFullPathname ${wasm.cstrToJs(zName)}`);
+      const i = wasm.cstrncpy(pOut, zName, nOut);
+      return i<nOut ? 0 : capi.SQLITE_CANTOPEN;
+    },
+    xGetLastError: function(pVfs,nOut,pOut){
+      const pool = getPoolForVfs(pVfs);
+      const e = pool.popErr();
+      pool.log(`xGetLastError ${nOut} e =`,e);
+      if(e){
+        const scope = wasm.scopedAllocPush();
+        try{
+          const [cMsg, n] = wasm.scopedAllocCString(e.message, true);
+          wasm.cstrncpy(pOut, cMsg, nOut);
+          if(n > nOut) wasm.poke8(pOut + nOut - 1, 0);
+        }catch(e){
+          return capi.SQLITE_NOMEM;
+        }finally{
+          wasm.scopedAllocPop(scope);
+        }
+      }
+      return e ? (e.sqlite3Rc || capi.SQLITE_IOERR) : 0;
+    },
+    //xSleep is optionally defined below
+    xOpen: function f(pVfs, zName, pFile, flags, pOutFlags){
+      const pool = getPoolForVfs(pVfs);
+      try{
+        pool.log(`xOpen ${wasm.cstrToJs(zName)} ${flags}`);
+        // First try to open a path that already exists in the file system.
+        const path = (zName && wasm.peek8(zName))
+              ? pool.getPath(zName)
+              : getRandomName();
+        let sah = pool.getSAHForPath(path);
+        if(!sah && (flags & capi.SQLITE_OPEN_CREATE)) {
+          // File not found so try to create it.
+          if(pool.getFileCount() < pool.getCapacity()) {
+            // Choose an unassociated OPFS file from the pool.
+            sah = pool.nextAvailableSAH();
+            pool.setAssociatedPath(sah, path, flags);
+          }else{
+            // File pool is full.
+            toss('SAH pool is full. Cannot create file',path);
+          }
+        }
+        if(!sah){
+          toss('file not found:',path);
+        }
+        // Subsequent I/O methods are only passed the sqlite3_file
+        // pointer, so map the relevant info we need to that pointer.
+        const file = {path, flags, sah};
+        pool.mapS3FileToOFile(pFile, file);
+        file.lockType = capi.SQLITE_LOCK_NONE;
+        const sq3File = new capi.sqlite3_file(pFile);
+        sq3File.$pMethods = opfsIoMethods.pointer;
+        sq3File.dispose();
+        wasm.poke32(pOutFlags, flags);
+        return 0;
+      }catch(e){
+        pool.storeErr(e);
+        return capi.SQLITE_CANTOPEN;
+      }
+    }/*xOpen()*/
+  }/*vfsMethods*/;
+
+  /**
+     Creates and initializes an sqlite3_vfs instance for an
+     OpfsSAHPool. The argument is the VFS's name (JS string).
+
+     Throws if the VFS name is already registered or if something
+     goes terribly wrong via sqlite3.vfs.installVfs().
+
+     Maintenance reminder: the only detail about the returned object
+     which is specific to any given OpfsSAHPool instance is the $zName
+     member. All other state is identical.
+  */
+  const createOpfsVfs = function(vfsName){
+    if( sqlite3.capi.sqlite3_vfs_find(vfsName)){
+      toss3("VFS name is already registered:", vfsName);
+    }
+    const opfsVfs = new capi.sqlite3_vfs();
+    /* We fetch the default VFS so that we can inherit some
+       methods from it. */
+    const pDVfs = capi.sqlite3_vfs_find(null);
+    const dVfs = pDVfs
+          ? new capi.sqlite3_vfs(pDVfs)
+          : null /* dVfs will be null when sqlite3 is built with
+                    SQLITE_OS_OTHER. */;
+    opfsVfs.$iVersion = 2/*yes, two*/;
+    opfsVfs.$szOsFile = capi.sqlite3_file.structInfo.sizeof;
+    opfsVfs.$mxPathname = HEADER_MAX_PATH_SIZE;
+    opfsVfs.addOnDispose(
+      opfsVfs.$zName = wasm.allocCString(vfsName),
+      ()=>setPoolForVfs(opfsVfs.pointer, 0)
+    );
+
+    if(dVfs){
+      /* Inherit certain VFS members from the default VFS,
+         if available. */
+      opfsVfs.$xRandomness = dVfs.$xRandomness;
+      opfsVfs.$xSleep = dVfs.$xSleep;
+      dVfs.dispose();
+    }
+    if(!opfsVfs.$xRandomness && !vfsMethods.xRandomness){
+      /* If the default VFS has no xRandomness(), add a basic JS impl... */
+      vfsMethods.xRandomness = function(pVfs, nOut, pOut){
+        const heap = wasm.heap8u();
+        let i = 0;
+        for(; i < nOut; ++i) heap[pOut + i] = (Math.random()*255000) & 0xFF;
+        return i;
+      };
+    }
+    if(!opfsVfs.$xSleep && !vfsMethods.xSleep){
+      vfsMethods.xSleep = (pVfs,ms)=>0;
+    }
+    sqlite3.vfs.installVfs({
+      vfs: {struct: opfsVfs, methods: vfsMethods}
+    });
+    return opfsVfs;
+  };
+
+  /**
+     Class for managing OPFS-related state for the
+     OPFS SharedAccessHandle Pool sqlite3_vfs.
+  */
+  class OpfsSAHPool {
+    /* OPFS dir in which VFS metadata is stored. */
+    vfsDir;
+    /* Directory handle to this.vfsDir. */
+    #dhVfsRoot;
+    /* Directory handle to the subdir of this.#dhVfsRoot which holds
+       the randomly-named "opaque" files. This subdir exists in the
+       hope that we can eventually support client-created files in
+       this.#dhVfsRoot. */
+    #dhOpaque;
+    /* Directory handle to this.dhVfsRoot's parent dir. Needed
+       for a VFS-wipe op. */
+    #dhVfsParent;
+    /* Maps SAHs to their opaque file names. */
+    #mapSAHToName = new Map();
+    /* Maps client-side file names to SAHs. */
+    #mapFilenameToSAH = new Map();
+    /* Set of currently-unused SAHs. */
+    #availableSAH = new Set();
+    /* Maps (sqlite3_file*) to xOpen's file objects. */
+    #mapS3FileToOFile_ = new Map();
+
+    /* Maps SAH to an abstract File Object which contains
+       various metadata about that handle. */
+    //#mapSAHToMeta = new Map();
+
+    /** Buffer used by [sg]etAssociatedPath(). */
+    #apBody = new Uint8Array(HEADER_CORPUS_SIZE);
+    // DataView for this.#apBody
+    #dvBody;
+
+    // associated sqlite3_vfs instance
+    #cVfs;
+
+    // Logging verbosity. See optionDefaults.verbosity.
+    #verbosity;
+
+    constructor(options = Object.create(null)){
+      this.#verbosity = options.verbosity ?? optionDefaults.verbosity;
+      this.vfsName = options.name || optionDefaults.name;
+      this.#cVfs = createOpfsVfs(this.vfsName);
+      setPoolForVfs(this.#cVfs.pointer, this);
+      this.vfsDir = options.directory || ("."+this.vfsName);
+      this.#dvBody =
+        new DataView(this.#apBody.buffer, this.#apBody.byteOffset);
+      this.isReady = this
+        .reset(!!(options.clearOnInit ?? optionDefaults.clearOnInit))
+        .then(()=>{
+          if(this.$error) throw this.$error;
+          return this.getCapacity()
+            ? Promise.resolve(undefined)
+            : this.addCapacity(options.initialCapacity
+                               || optionDefaults.initialCapacity);
+        });
+    }
+
+    #logImpl(level,...args){
+      if(this.#verbosity>level) loggers[level](this.vfsName+":",...args);
+    };
+    log(...args){this.#logImpl(2, ...args)};
+    warn(...args){this.#logImpl(1, ...args)};
+    error(...args){this.#logImpl(0, ...args)};
+
+    getVfs(){return this.#cVfs}
+
+    /* Current pool capacity. */
+    getCapacity(){return this.#mapSAHToName.size}
+
+    /* Current number of in-use files from pool. */
+    getFileCount(){return this.#mapFilenameToSAH.size}
+
+    /* Returns an array of the names of all
+       currently-opened client-specified filenames. */
+    getFileNames(){
+      const rc = [];
+      const iter = this.#mapFilenameToSAH.keys();
+      for(const n of iter) rc.push(n);
+      return rc;
+    }
+
+//    #createFileObject(sah,clientName,opaqueName){
+//      const f = Object.assign(Object.create(null),{
+//        clientName, opaqueName
+//      });
+//      this.#mapSAHToMeta.set(sah, f);
+//      return f;
+//    }
+//    #unmapFileObject(sah){
+//      this.#mapSAHToMeta.delete(sah);
+//    }
+
+    /**
+       Adds n files to the pool's capacity. This change is
+       persistent across settings. Returns a Promise which resolves
+       to the new capacity.
+    */
+    async addCapacity(n){
+      for(let i = 0; i < n; ++i){
+        const name = getRandomName();
+        const h = await this.#dhOpaque.getFileHandle(name, {create:true});
+        const ah = await h.createSyncAccessHandle();
+        this.#mapSAHToName.set(ah,name);
+        this.setAssociatedPath(ah, '', 0);
+        //this.#createFileObject(ah,undefined,name);
+      }
+      return this.getCapacity();
+    }
+
+    /**
+       Reduce capacity by n, but can only reduce up to the limit
+       of currently-available SAHs. Returns a Promise which resolves
+       to the number of slots really removed.
+    */
+    async reduceCapacity(n){
+      let nRm = 0;
+      for(const ah of Array.from(this.#availableSAH)){
+        if(nRm === n || this.getFileCount() === this.getCapacity()){
+          break;
+        }
+        const name = this.#mapSAHToName.get(ah);
+        //this.#unmapFileObject(ah);
+        ah.close();
+        await this.#dhOpaque.removeEntry(name);
+        this.#mapSAHToName.delete(ah);
+        this.#availableSAH.delete(ah);
+        ++nRm;
+      }
+      return nRm;
+    }
+
+    /**
+       Releases all currently-opened SAHs. The only legal
+       operation after this is acquireAccessHandles().
+    */
+    releaseAccessHandles(){
+      for(const ah of this.#mapSAHToName.keys()) ah.close();
+      this.#mapSAHToName.clear();
+      this.#mapFilenameToSAH.clear();
+      this.#availableSAH.clear();
+    }
+
+    /**
+       Opens all files under this.vfsDir/this.#dhOpaque and acquires
+       a SAH for each. returns a Promise which resolves to no value
+       but completes once all SAHs are acquired. If acquiring an SAH
+       throws, SAHPool.$error will contain the corresponding
+       exception.
+
+       If clearFiles is true, the client-stored state of each file is
+       cleared when its handle is acquired, including its name, flags,
+       and any data stored after the metadata block.
+    */
+    async acquireAccessHandles(clearFiles){
+      const files = [];
+      for await (const [name,h] of this.#dhOpaque){
+        if('file'===h.kind){
+          files.push([name,h]);
+        }
+      }
+      return Promise.all(files.map(async([name,h])=>{
+        try{
+          const ah = await h.createSyncAccessHandle()
+          this.#mapSAHToName.set(ah, name);
+          if(clearFiles){
+            ah.truncate(HEADER_OFFSET_DATA);
+            this.setAssociatedPath(ah, '', 0);
+          }else{
+            const path = this.getAssociatedPath(ah);
+            if(path){
+              this.#mapFilenameToSAH.set(path, ah);
+            }else{
+              this.#availableSAH.add(ah);
+            }
+          }
+        }catch(e){
+          this.storeErr(e);
+          this.releaseAccessHandles();
+          throw e;
+        }
+      }));
+    }
+
+    /**
+       Given an SAH, returns the client-specified name of
+       that file by extracting it from the SAH's header.
+
+       On error, it disassociates SAH from the pool and
+       returns an empty string.
+    */
+    getAssociatedPath(sah){
+      sah.read(this.#apBody, {at: 0});
+      // Delete any unexpected files left over by previous
+      // untimely errors...
+      const flags = this.#dvBody.getUint32(HEADER_OFFSET_FLAGS);
+      if(this.#apBody[0] &&
+         ((flags & capi.SQLITE_OPEN_DELETEONCLOSE) ||
+          (flags & PERSISTENT_FILE_TYPES)===0)){
+        warn(`Removing file with unexpected flags ${flags.toString(16)}`,
+             this.#apBody);
+        this.setAssociatedPath(sah, '', 0);
+        return '';
+      }
+
+      const fileDigest = new Uint32Array(HEADER_DIGEST_SIZE / 4);
+      sah.read(fileDigest, {at: HEADER_OFFSET_DIGEST});
+      const compDigest = this.computeDigest(this.#apBody);
+      if(fileDigest.every((v,i) => v===compDigest[i])){
+        // Valid digest
+        const pathBytes = this.#apBody.findIndex((v)=>0===v);
+        if(0===pathBytes){
+          // This file is unassociated, so truncate it to avoid
+          // leaving stale db data laying around.
+          sah.truncate(HEADER_OFFSET_DATA);
+        }
+        return pathBytes
+          ? textDecoder.decode(this.#apBody.subarray(0,pathBytes))
+          : '';
+      }else{
+        // Invalid digest
+        warn('Disassociating file with bad digest.');
+        this.setAssociatedPath(sah, '', 0);
+        return '';
+      }
+    }
+
+    /**
+       Stores the given client-defined path and SQLITE_OPEN_xyz flags
+       into the given SAH. If path is an empty string then the file is
+       disassociated from the pool but its previous name is preserved
+       in the metadata.
+    */
+    setAssociatedPath(sah, path, flags){
+      const enc = textEncoder.encodeInto(path, this.#apBody);
+      if(HEADER_MAX_PATH_SIZE <= enc.written + 1/*NUL byte*/){
+        toss("Path too long:",path);
+      }
+      this.#apBody.fill(0, enc.written, HEADER_MAX_PATH_SIZE);
+      this.#dvBody.setUint32(HEADER_OFFSET_FLAGS, flags);
+
+      const digest = this.computeDigest(this.#apBody);
+      sah.write(this.#apBody, {at: 0});
+      sah.write(digest, {at: HEADER_OFFSET_DIGEST});
+      sah.flush();
+
+      if(path){
+        this.#mapFilenameToSAH.set(path, sah);
+        this.#availableSAH.delete(sah);
+      }else{
+        // This is not a persistent file, so eliminate the contents.
+        sah.truncate(HEADER_OFFSET_DATA);
+        this.#availableSAH.add(sah);
+      }
+    }
+
+    /**
+       Computes a digest for the given byte array and returns it as a
+       two-element Uint32Array. This digest gets stored in the
+       metadata for each file as a validation check. Changing this
+       algorithm invalidates all existing databases for this VFS, so
+       don't do that.
+    */
+    computeDigest(byteArray){
+      let h1 = 0xdeadbeef;
+      let h2 = 0x41c6ce57;
+      for(const v of byteArray){
+        h1 = 31 * h1 + (v * 307);
+        h2 = 31 * h2 + (v * 307);
+      }
+      return new Uint32Array([h1>>>0, h2>>>0]);
+    }
+
+    /**
+       Re-initializes the state of the SAH pool, releasing and
+       re-acquiring all handles.
+
+       See acquireAccessHandles() for the specifics of the clearFiles
+       argument.
+    */
+    async reset(clearFiles){
+      await this.isReady;
+      let h = await navigator.storage.getDirectory();
+      let prev, prevName;
+      for(const d of this.vfsDir.split('/')){
+        if(d){
+          prev = h;
+          h = await h.getDirectoryHandle(d,{create:true});
+        }
+      }
+      this.#dhVfsRoot = h;
+      this.#dhVfsParent = prev;
+      this.#dhOpaque = await this.#dhVfsRoot.getDirectoryHandle(
+        OPAQUE_DIR_NAME,{create:true}
+      );
+      this.releaseAccessHandles();
+      return this.acquireAccessHandles(clearFiles);
+    }
+
+    /**
+       Returns the pathname part of the given argument,
+       which may be any of:
+
+       - a URL object
+       - A JS string representing a file name
+       - Wasm C-string representing a file name
+
+       All "../" parts and duplicate slashes are resolve/removed from
+       the returned result.
+    */
+    getPath(arg) {
+      if(wasm.isPtr(arg)) arg = wasm.cstrToJs(arg);
+      return ((arg instanceof URL)
+              ? arg
+              : new URL(arg, 'file://localhost/')).pathname;
+    }
+
+    /**
+       Removes the association of the given client-specified file
+       name (JS string) from the pool. Returns true if a mapping
+       is found, else false.
+    */
+    deletePath(path) {
+      const sah = this.#mapFilenameToSAH.get(path);
+      if(sah) {
+        // Un-associate the name from the SAH.
+        this.#mapFilenameToSAH.delete(path);
+        this.setAssociatedPath(sah, '', 0);
+      }
+      return !!sah;
+    }
+
+    /**
+       Sets e (an Error object) as this object's current error. Pass a
+       falsy (or no) value to clear it. If code is truthy it is
+       assumed to be an SQLITE_xxx result code, defaulting to
+       SQLITE_IOERR if code is falsy.
+
+       Returns the 2nd argument.
+    */
+    storeErr(e,code){
+      if(e){
+        e.sqlite3Rc = code || capi.SQLITE_IOERR;
+        this.error(e);
+      }
+      this.$error = e;
+      return code;
+    }
+    /**
+       Pops this object's Error object and returns
+       it (a falsy value if no error is set).
+    */
+    popErr(){
+      const rc = this.$error;
+      this.$error = undefined;
+      return rc;
+    }
+
+    /**
+       Returns the next available SAH without removing
+       it from the set.
+    */
+    nextAvailableSAH(){
+      const [rc] = this.#availableSAH.keys();
+      return rc;
+    }
+
+    /**
+       Given an (sqlite3_file*), returns the mapped
+       xOpen file object.
+    */
+    getOFileForS3File(pFile){
+      return this.#mapS3FileToOFile_.get(pFile);
+    }
+    /**
+       Maps or unmaps (if file is falsy) the given (sqlite3_file*)
+       to an xOpen file object and to this pool object.
+    */
+    mapS3FileToOFile(pFile,file){
+      if(file){
+        this.#mapS3FileToOFile_.set(pFile, file);
+        setPoolForPFile(pFile, this);
+      }else{
+        this.#mapS3FileToOFile_.delete(pFile);
+        setPoolForPFile(pFile, false);
+      }
+    }
+
+    /**
+       Returns true if the given client-defined file name is in this
+       object's name-to-SAH map.
+    */
+    hasFilename(name){
+      return this.#mapFilenameToSAH.has(name)
+    }
+
+    /**
+       Returns the SAH associated with the given
+       client-defined file name.
+    */
+    getSAHForPath(path){
+      return this.#mapFilenameToSAH.get(path);
+    }
+
+    /**
+       Removes this object's sqlite3_vfs registration and shuts down
+       this object, releasing all handles, mappings, and whatnot,
+       including deleting its data directory. There is currently no
+       way to "revive" the object and reaquire its resources.
+
+       This function is intended primarily for testing.
+
+       Resolves to true if it did its job, false if the
+       VFS has already been shut down.
+    */
+    async removeVfs(){
+      if(!this.#cVfs.pointer || !this.#dhOpaque) return false;
+      capi.sqlite3_vfs_unregister(this.#cVfs.pointer);
+      this.#cVfs.dispose();
+      delete initPromises[this.vfsName];
+      try{
+        this.releaseAccessHandles();
+        await this.#dhVfsRoot.removeEntry(OPAQUE_DIR_NAME, {recursive: true});
+        this.#dhOpaque = undefined;
+        await this.#dhVfsParent.removeEntry(
+          this.#dhVfsRoot.name, {recursive: true}
+        );
+        this.#dhVfsRoot = this.#dhVfsParent = undefined;
+      }catch(e){
+        sqlite3.config.error(this.vfsName,"removeVfs() failed:",e);
+        /*otherwise ignored - there is no recovery strategy*/
+      }
+      return true;
+    }
+
+
+    //! Documented elsewhere in this file.
+    exportFile(name){
+      const sah = this.#mapFilenameToSAH.get(name) || toss("File not found:",name);
+      const n = sah.getSize() - HEADER_OFFSET_DATA;
+      const b = new Uint8Array(n>0 ? n : 0);
+      if(n>0){
+        const nRead = sah.read(b, {at: HEADER_OFFSET_DATA});
+        if(nRead != n){
+          toss("Expected to read "+n+" bytes but read "+nRead+".");
+        }
+      }
+      return b;
+    }
+
+    //! Impl for importDb() when its 2nd arg is a function.
+    async importDbChunked(name, callback){
+      const sah = this.#mapFilenameToSAH.get(name)
+            || this.nextAvailableSAH()
+            || toss("No available handles to import to.");
+      sah.truncate(0);
+      let nWrote = 0, chunk, checkedHeader = false, err = false;
+      try{
+        while( undefined !== (chunk = await callback()) ){
+          if(chunk instanceof ArrayBuffer) chunk = new Uint8Array(chunk);
+          if( 0===nWrote && chunk.byteLength>=15 ){
+            util.affirmDbHeader(chunk);
+            checkedHeader = true;
+          }
+          sah.write(chunk, {at:  HEADER_OFFSET_DATA + nWrote});
+          nWrote += chunk.byteLength;
+        }
+        if( nWrote < 512 || 0!==nWrote % 512 ){
+          toss("Input size",nWrote,"is not correct for an SQLite database.");
+        }
+        if( !checkedHeader ){
+          const header = new Uint8Array(20);
+          sah.read( header, {at: 0} );
+          util.affirmDbHeader( header );
+        }
+        sah.write(new Uint8Array([1,1]), {
+          at: HEADER_OFFSET_DATA + 18
+        }/*force db out of WAL mode*/);
+      }catch(e){
+        this.setAssociatedPath(sah, '', 0);
+        throw e;
+      }
+      this.setAssociatedPath(sah, name, capi.SQLITE_OPEN_MAIN_DB);
+      return nWrote;
+    }
+
+    //! Documented elsewhere in this file.
+    importDb(name, bytes){
+      if( bytes instanceof ArrayBuffer ) bytes = new Uint8Array(bytes);
+      else if( bytes instanceof Function ) return this.importDbChunked(name, bytes);
+      const sah = this.#mapFilenameToSAH.get(name)
+            || this.nextAvailableSAH()
+            || toss("No available handles to import to.");
+      const n = bytes.byteLength;
+      if(n<512 || n%512!=0){
+        toss("Byte array size is invalid for an SQLite db.");
+      }
+      const header = "SQLite format 3";
+      for(let i = 0; i < header.length; ++i){
+        if( header.charCodeAt(i) !== bytes[i] ){
+          toss("Input does not contain an SQLite database header.");
+        }
+      }
+      const nWrote = sah.write(bytes, {at: HEADER_OFFSET_DATA});
+      if(nWrote != n){
+        this.setAssociatedPath(sah, '', 0);
+        toss("Expected to write "+n+" bytes but wrote "+nWrote+".");
+      }else{
+        sah.write(new Uint8Array([1,1]), {at: HEADER_OFFSET_DATA+18}
+                   /* force db out of WAL mode */);
+        this.setAssociatedPath(sah, name, capi.SQLITE_OPEN_MAIN_DB);
+      }
+      return nWrote;
+    }
+
+  }/*class OpfsSAHPool*/;
+
+
+  /**
+     A OpfsSAHPoolUtil instance is exposed to clients in order to
+     manipulate an OpfsSAHPool object without directly exposing that
+     object and allowing for some semantic changes compared to that
+     class.
+
+     Class docs are in the client-level docs for
+     installOpfsSAHPoolVfs().
+  */
+  class OpfsSAHPoolUtil {
+    /* This object's associated OpfsSAHPool. */
+    #p;
+
+    constructor(sahPool){
+      this.#p = sahPool;
+      this.vfsName = sahPool.vfsName;
+    }
+
+    async addCapacity(n){ return this.#p.addCapacity(n) }
+
+    async reduceCapacity(n){ return this.#p.reduceCapacity(n) }
+
+    getCapacity(){ return this.#p.getCapacity(this.#p) }
+
+    getFileCount(){ return this.#p.getFileCount() }
+    getFileNames(){ return this.#p.getFileNames() }
+
+    async reserveMinimumCapacity(min){
+      const c = this.#p.getCapacity();
+      return (c < min) ? this.#p.addCapacity(min - c) : c;
+    }
+
+    exportFile(name){ return this.#p.exportFile(name) }
+
+    importDb(name, bytes){ return this.#p.importDb(name,bytes) }
+
+    async wipeFiles(){ return this.#p.reset(true) }
+
+    unlink(filename){ return this.#p.deletePath(filename) }
+
+    async removeVfs(){ return this.#p.removeVfs() }
+
+  }/* class OpfsSAHPoolUtil */;
+
+  /**
+     Returns a resolved Promise if the current environment
+     has a "fully-sync" SAH impl, else a rejected Promise.
+  */
+  const apiVersionCheck = async ()=>{
+    const dh = await navigator.storage.getDirectory();
+    const fn = '.opfs-sahpool-sync-check-'+getRandomName();
+    const fh = await dh.getFileHandle(fn, { create: true });
+    const ah = await fh.createSyncAccessHandle();
+    const close = ah.close();
+    await close;
+    await dh.removeEntry(fn);
+    if(close?.then){
+      toss("The local OPFS API is too old for opfs-sahpool:",
+           "it has an async FileSystemSyncAccessHandle.close() method.");
+    }
+    return true;
+  };
+
+  /**
+     installOpfsSAHPoolVfs() asynchronously initializes the OPFS
+     SyncAccessHandle (a.k.a. SAH) Pool VFS. It returns a Promise which
+     either resolves to a utility object described below or rejects with
+     an Error value.
+
+     Initialization of this VFS is not automatic because its
+     registration requires that it lock all resources it
+     will potentially use, even if client code does not want
+     to use them. That, in turn, can lead to locking errors
+     when, for example, one page in a given origin has loaded
+     this VFS but does not use it, then another page in that
+     origin tries to use the VFS. If the VFS were automatically
+     registered, the second page would fail to load the VFS
+     due to OPFS locking errors.
+
+     If this function is called more than once with a given "name"
+     option (see below), it will return the same Promise. Calls for
+     different names will return different Promises which resolve to
+     independent objects and refer to different VFS registrations.
+
+     On success, the resulting Promise resolves to a utility object
+     which can be used to query and manipulate the pool. Its API is
+     described at the end of these docs.
+
+     This function accepts an options object to configure certain
+     parts but it is only acknowledged for the very first call and
+     ignored for all subsequent calls.
+
+     The options, in alphabetical order:
+
+     - `clearOnInit`: (default=false) if truthy, contents and filename
+     mapping are removed from each SAH it is acquired during
+     initalization of the VFS, leaving the VFS's storage in a pristine
+     state. Use this only for databases which need not survive a page
+     reload.
+
+     - `initialCapacity`: (default=6) Specifies the default capacity of
+     the VFS. This should not be set unduly high because the VFS has
+     to open (and keep open) a file for each entry in the pool. This
+     setting only has an effect when the pool is initially empty. It
+     does not have any effect if a pool already exists.
+
+     - `directory`: (default="."+`name`) Specifies the OPFS directory
+     name in which to store metadata for the `"opfs-sahpool"`
+     sqlite3_vfs.  Only one instance of this VFS can be installed per
+     JavaScript engine, and any two engines with the same storage
+     directory name will collide with each other, leading to locking
+     errors and the inability to register the VFS in the second and
+     subsequent engine. Using a different directory name for each
+     application enables different engines in the same HTTP origin to
+     co-exist, but their data are invisible to each other. Changing
+     this name will effectively orphan any databases stored under
+     previous names. The default is unspecified but descriptive.  This
+     option may contain multiple path elements, e.g. "foo/bar/baz",
+     and they are created automatically.  In practice there should be
+     no driving need to change this. ACHTUNG: all files in this
+     directory are assumed to be managed by the VFS. Do not place
+     other files in that directory, as they may be deleted or
+     otherwise modified by the VFS.
+
+     - `name`: (default="opfs-sahpool") sets the name to register this
+     VFS under. Normally this should not be changed, but it is
+     possible to register this VFS under multiple names so long as
+     each has its own separate directory to work from. The storage for
+     each is invisible to all others. The name must be a string
+     compatible with `sqlite3_vfs_register()` and friends and suitable
+     for use in URI-style database file names.
+
+     Achtung: if a custom `name` is provided, a custom `directory`
+     must also be provided if any other instance is registered with
+     the default directory. If no directory is explicitly provided
+     then a directory name is synthesized from the `name` option.
+
+
+     - `forceReinitIfPreviouslyFailed`: (default=`false`) Is a fallback option
+     to assist in working around certain flaky environments which may
+     mysteriously fail to permit access to OPFS sync access handles on
+     an initial attempt but permit it on a second attemp. This option
+     should never be used but is provided for those who choose to
+     throw caution to the wind and trust such environments. If this
+     option is truthy _and_ the previous attempt to initialize this
+     VFS with the same `name` failed, the VFS will attempt to
+     initialize a second time instead of returning the cached
+     failure. See discussion at:
+     <https://github.com/sqlite/sqlite-wasm/issues/79>
+
+
+     Peculiarities of this VFS vis a vis other SQLite VFSes:
+
+     - Paths given to it _must_ be absolute. Relative paths will not
+     be properly recognized. This is arguably a bug but correcting it
+     requires some hoop-jumping in routines which have no business
+     doing such tricks.
+
+     - It is possible to install multiple instances under different
+     names, each sandboxed from one another inside their own private
+     directory.  This feature exists primarily as a way for disparate
+     applications within a given HTTP origin to use this VFS without
+     introducing locking issues between them.
+
+
+     The API for the utility object passed on by this function's
+     Promise, in alphabetical order...
+
+     - [async] number addCapacity(n)
+
+     Adds `n` entries to the current pool. This change is persistent
+     across sessions so should not be called automatically at each app
+     startup (but see `reserveMinimumCapacity()`). Its returned Promise
+     resolves to the new capacity.  Because this operation is necessarily
+     asynchronous, the C-level VFS API cannot call this on its own as
+     needed.
+
+     - byteArray exportFile(name)
+
+     Synchronously reads the contents of the given file into a Uint8Array
+     and returns it. This will throw if the given name is not currently
+     in active use or on I/O error. Note that the given name is _not_
+     visible directly in OPFS (or, if it is, it's not from this VFS).
+
+     - number getCapacity()
+
+     Returns the number of files currently contained
+     in the SAH pool. The default capacity is only large enough for one
+     or two databases and their associated temp files.
+
+     - number getFileCount()
+
+     Returns the number of files from the pool currently allocated to
+     slots. This is not the same as the files being "opened".
+
+     - array getFileNames()
+
+     Returns an array of the names of the files currently allocated to
+     slots. This list is the same length as getFileCount().
+
+     - void importDb(name, bytes)
+
+     Imports the contents of an SQLite database, provided as a byte
+     array or ArrayBuffer, under the given name, overwriting any
+     existing content. Throws if the pool has no available file slots,
+     on I/O error, or if the input does not appear to be a
+     database. In the latter case, only a cursory examination is made.
+     Results are undefined if the given db name refers to an opened
+     db.  Note that this routine is _only_ for importing database
+     files, not arbitrary files, the reason being that this VFS will
+     automatically clean up any non-database files so importing them
+     is pointless.
+
+     If passed a function for its second argument, its behavior
+     changes to asynchronous and it imports its data in chunks fed to
+     it by the given callback function. It calls the callback (which
+     may be async) repeatedly, expecting either a Uint8Array or
+     ArrayBuffer (to denote new input) or undefined (to denote
+     EOF). For so long as the callback continues to return
+     non-undefined, it will append incoming data to the given
+     VFS-hosted database file. The result of the resolved Promise when
+     called this way is the size of the resulting database.
+
+     On succes this routine rewrites the database header bytes in the
+     output file (not the input array) to force disabling of WAL mode.
+
+     On a write error, the handle is removed from the pool and made
+     available for re-use.
+
+     - [async] number reduceCapacity(n)
+
+     Removes up to `n` entries from the pool, with the caveat that it can
+     only remove currently-unused entries. It returns a Promise which
+     resolves to the number of entries actually removed.
+
+     - [async] boolean removeVfs()
+
+     Unregisters the opfs-sahpool VFS and removes its directory from OPFS
+     (which means that _all client content_ is removed). After calling
+     this, the VFS may no longer be used and there is no way to re-add it
+     aside from reloading the current JavaScript context.
+
+     Results are undefined if a database is currently in use with this
+     VFS.
+
+     The returned Promise resolves to true if it performed the removal
+     and false if the VFS was not installed.
+
+     If the VFS has a multi-level directory, e.g. "/foo/bar/baz", _only_
+     the bottom-most directory is removed because this VFS cannot know for
+     certain whether the higher-level directories contain data which
+     should be removed.
+
+     - [async] number reserveMinimumCapacity(min)
+
+     If the current capacity is less than `min`, the capacity is
+     increased to `min`, else this returns with no side effects. The
+     resulting Promise resolves to the new capacity.
+
+     - boolean unlink(filename)
+
+     If a virtual file exists with the given name, disassociates it from
+     the pool and returns true, else returns false without side
+     effects. Results are undefined if the file is currently in active
+     use.
+
+     - string vfsName
+
+     The SQLite VFS name under which this pool's VFS is registered.
+
+     - [async] void wipeFiles()
+
+     Clears all client-defined state of all SAHs and makes all of them
+     available for re-use by the pool. Results are undefined if any such
+     handles are currently in use, e.g. by an sqlite3 db.
+  */
+  sqlite3.installOpfsSAHPoolVfs = async function(options=Object.create(null)){
+    options = Object.assign(Object.create(null), optionDefaults, (options||{}));
+    const vfsName = options.name;
+    if(options.$testThrowPhase1){
+      throw options.$testThrowPhase1;
+    }
+    if(initPromises[vfsName]){
+      try {
+        const p = await initPromises[vfsName];
+        //log("installOpfsSAHPoolVfs() returning cached result",options,vfsName,p);
+        return p;
+      }catch(e){
+        //log("installOpfsSAHPoolVfs() got cached failure",options,vfsName,e);
+        if( options.forceReinitIfPreviouslyFailed ){
+          delete initPromises[vfsName];
+          /* Fall through and try again. */
+        }else{
+          throw e;
+        }
+      }
+    }
+    if(!globalThis.FileSystemHandle ||
+       !globalThis.FileSystemDirectoryHandle ||
+       !globalThis.FileSystemFileHandle ||
+       !globalThis.FileSystemFileHandle.prototype.createSyncAccessHandle ||
+       !navigator?.storage?.getDirectory){
+      return (initPromises[vfsName] = Promise.reject(new Error("Missing required OPFS APIs.")));
+    }
+
+    /**
+       Maintenance reminder: the order of ASYNC ops in this function
+       is significant. We need to have them all chained at the very
+       end in order to be able to catch a race condition where
+       installOpfsSAHPoolVfs() is called twice in rapid succession,
+       e.g.:
+
+       installOpfsSAHPoolVfs().then(console.warn.bind(console));
+       installOpfsSAHPoolVfs().then(console.warn.bind(console));
+
+       If the timing of the async calls is not "just right" then that
+       second call can end up triggering the init a second time and chaos
+       ensues.
+    */
+    return initPromises[vfsName] = apiVersionCheck().then(async function(){
+      if(options.$testThrowPhase2){
+        throw options.$testThrowPhase2;
+      }
+      const thePool = new OpfsSAHPool(options);
+      return thePool.isReady.then(async()=>{
+        /** The poolUtil object will be the result of the
+            resolved Promise. */
+        const poolUtil = new OpfsSAHPoolUtil(thePool);
+        if(sqlite3.oo1){
+          const oo1 = sqlite3.oo1;
+          const theVfs = thePool.getVfs();
+          const OpfsSAHPoolDb = function(...args){
+            const opt = oo1.DB.dbCtorHelper.normalizeArgs(...args);
+            opt.vfs = theVfs.$zName;
+            oo1.DB.dbCtorHelper.call(this, opt);
+          };
+          OpfsSAHPoolDb.prototype = Object.create(oo1.DB.prototype);
+          poolUtil.OpfsSAHPoolDb = OpfsSAHPoolDb;
+        }/*extend sqlite3.oo1*/
+        thePool.log("VFS initialized.");
+        return poolUtil;
+      }).catch(async (e)=>{
+        await thePool.removeVfs().catch(()=>{});
+        throw e;
+      });
+    }).catch((err)=>{
+      //error("rejecting promise:",err);
+      return initPromises[vfsName] = Promise.reject(err);
+    });
+  }/*installOpfsSAHPoolVfs()*/;
+}/*sqlite3ApiBootstrap.initializers*/);
+//#else
+/*
+  The OPFS SAH Pool VFS parts are elided from builds targeting
+  node.js.
+*/
+//#endif target=node
diff --git a/ext/wasm/api/sqlite3-vfs-opfs.c-pp.js b/ext/wasm/api/sqlite3-vfs-opfs.c-pp.js
new file mode 100644
index 0000000000000000000000000000000000000000..27f1bfae7c4c34a7704f53e8595c77495ed28461
--- /dev/null
+++ b/ext/wasm/api/sqlite3-vfs-opfs.c-pp.js
@@ -0,0 +1,1457 @@
+//#ifnot target=node
+/*
+  2022-09-18
+
+  The author disclaims copyright to this source code.  In place of a
+  legal notice, here is a blessing:
+
+  *   May you do good and not evil.
+  *   May you find forgiveness for yourself and forgive others.
+  *   May you share freely, never taking more than you give.
+
+  ***********************************************************************
+
+  This file holds the synchronous half of an sqlite3_vfs
+  implementation which proxies, in a synchronous fashion, the
+  asynchronous Origin-Private FileSystem (OPFS) APIs using a second
+  Worker, implemented in sqlite3-opfs-async-proxy.js.  This file is
+  intended to be appended to the main sqlite3 JS deliverable somewhere
+  after sqlite3-api-oo1.js and before sqlite3-api-cleanup.js.
+*/
+'use strict';
+globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
+/**
+   installOpfsVfs() returns a Promise which, on success, installs an
+   sqlite3_vfs named "opfs", suitable for use with all sqlite3 APIs
+   which accept a VFS. It is intended to be called via
+   sqlite3ApiBootstrap.initializers or an equivalent mechanism.
+
+   The installed VFS uses the Origin-Private FileSystem API for
+   all file storage. On error it is rejected with an exception
+   explaining the problem. Reasons for rejection include, but are
+   not limited to:
+
+   - The counterpart Worker (see below) could not be loaded.
+
+   - The environment does not support OPFS. That includes when
+     this function is called from the main window thread.
+
+  Significant notes and limitations:
+
+  - The OPFS features used here are only available in dedicated Worker
+    threads. This file tries to detect that case, resulting in a
+    rejected Promise if those features do not seem to be available.
+
+  - It requires the SharedArrayBuffer and Atomics classes, and the
+    former is only available if the HTTP server emits the so-called
+    COOP and COEP response headers. These features are required for
+    proxying OPFS's synchronous API via the synchronous interface
+    required by the sqlite3_vfs API.
+
+  - This function may only be called a single time. When called, this
+    function removes itself from the sqlite3 object.
+
+  All arguments to this function are for internal/development purposes
+  only. They do not constitute a public API and may change at any
+  time.
+
+  The argument may optionally be a plain object with the following
+  configuration options:
+
+  - proxyUri: name of the async proxy JS file.
+
+  - verbose (=2): an integer 0-3. 0 disables all logging, 1 enables
+    logging of errors. 2 enables logging of warnings and errors. 3
+    additionally enables debugging info. Logging is performed
+    via the sqlite3.config.{log|warn|error}() functions.
+
+  - sanityChecks (=false): if true, some basic sanity tests are run on
+    the OPFS VFS API after it's initialized, before the returned
+    Promise resolves. This is only intended for testing and
+    development of the VFS, not client-side use.
+
+  On success, the Promise resolves to the top-most sqlite3 namespace
+  object and that object gets a new object installed in its
+  `opfs` property, containing several OPFS-specific utilities.
+*/
+const installOpfsVfs = function callee(options){
+  if(!globalThis.SharedArrayBuffer
+    || !globalThis.Atomics){
+    return Promise.reject(
+      new Error("Cannot install OPFS: Missing SharedArrayBuffer and/or Atomics. "+
+                "The server must emit the COOP/COEP response headers to enable those. "+
+                "See https://sqlite.org/wasm/doc/trunk/persistence.md#coop-coep")
+    );
+  }else if('undefined'===typeof WorkerGlobalScope){
+    return Promise.reject(
+      new Error("The OPFS sqlite3_vfs cannot run in the main thread "+
+                "because it requires Atomics.wait().")
+    );
+  }else if(!globalThis.FileSystemHandle ||
+           !globalThis.FileSystemDirectoryHandle ||
+           !globalThis.FileSystemFileHandle ||
+           !globalThis.FileSystemFileHandle.prototype.createSyncAccessHandle ||
+           !navigator?.storage?.getDirectory){
+    return Promise.reject(
+      new Error("Missing required OPFS APIs.")
+    );
+  }
+  if(!options || 'object'!==typeof options){
+    options = Object.create(null);
+  }
+  const urlParams = new URL(globalThis.location.href).searchParams;
+  if(urlParams.has('opfs-disable')){
+    //sqlite3.config.warn('Explicitly not installing "opfs" VFS due to opfs-disable flag.');
+    return Promise.resolve(sqlite3);
+  }
+  if(undefined===options.verbose){
+    options.verbose = urlParams.has('opfs-verbose')
+      ? (+urlParams.get('opfs-verbose') || 2) : 1;
+  }
+  if(undefined===options.sanityChecks){
+    options.sanityChecks = urlParams.has('opfs-sanity-check');
+  }
+  if(undefined===options.proxyUri){
+    options.proxyUri = callee.defaultProxyUri;
+  }
+
+  //sqlite3.config.warn("OPFS options =",options,globalThis.location);
+
+  if('function' === typeof options.proxyUri){
+    options.proxyUri = options.proxyUri();
+  }
+  const thePromise = new Promise(function(promiseResolve_, promiseReject_){
+    const loggers = [
+      sqlite3.config.error,
+      sqlite3.config.warn,
+      sqlite3.config.log
+    ];
+    const logImpl = (level,...args)=>{
+      if(options.verbose>level) loggers[level]("OPFS syncer:",...args);
+    };
+    const log =    (...args)=>logImpl(2, ...args);
+    const warn =   (...args)=>logImpl(1, ...args);
+    const error =  (...args)=>logImpl(0, ...args);
+    const toss = sqlite3.util.toss;
+    const capi = sqlite3.capi;
+    const util = sqlite3.util;
+    const wasm = sqlite3.wasm;
+    const sqlite3_vfs = capi.sqlite3_vfs;
+    const sqlite3_file = capi.sqlite3_file;
+    const sqlite3_io_methods = capi.sqlite3_io_methods;
+    /**
+       Generic utilities for working with OPFS. This will get filled out
+       by the Promise setup and, on success, installed as sqlite3.opfs.
+
+       ACHTUNG: do not rely on these APIs in client code. They are
+       experimental and subject to change or removal as the
+       OPFS-specific sqlite3_vfs evolves.
+    */
+    const opfsUtil = Object.create(null);
+
+    /**
+       Returns true if _this_ thread has access to the OPFS APIs.
+    */
+    const thisThreadHasOPFS = ()=>{
+      return globalThis.FileSystemHandle &&
+        globalThis.FileSystemDirectoryHandle &&
+        globalThis.FileSystemFileHandle &&
+        globalThis.FileSystemFileHandle.prototype.createSyncAccessHandle &&
+        navigator?.storage?.getDirectory;
+    };
+
+    /**
+       Not part of the public API. Solely for internal/development
+       use.
+    */
+    opfsUtil.metrics = {
+      dump: function(){
+        let k, n = 0, t = 0, w = 0;
+        for(k in state.opIds){
+          const m = metrics[k];
+          n += m.count;
+          t += m.time;
+          w += m.wait;
+          m.avgTime = (m.count && m.time) ? (m.time / m.count) : 0;
+          m.avgWait = (m.count && m.wait) ? (m.wait / m.count) : 0;
+        }
+        sqlite3.config.log(globalThis.location.href,
+                    "metrics for",globalThis.location.href,":",metrics,
+                    "\nTotal of",n,"op(s) for",t,
+                    "ms (incl. "+w+" ms of waiting on the async side)");
+        sqlite3.config.log("Serialization metrics:",metrics.s11n);
+        W.postMessage({type:'opfs-async-metrics'});
+      },
+      reset: function(){
+        let k;
+        const r = (m)=>(m.count = m.time = m.wait = 0);
+        for(k in state.opIds){
+          r(metrics[k] = Object.create(null));
+        }
+        let s = metrics.s11n = Object.create(null);
+        s = s.serialize = Object.create(null);
+        s.count = s.time = 0;
+        s = metrics.s11n.deserialize = Object.create(null);
+        s.count = s.time = 0;
+      }
+    }/*metrics*/;
+    const opfsIoMethods = new sqlite3_io_methods();
+    const opfsVfs = new sqlite3_vfs()
+          .addOnDispose( ()=>opfsIoMethods.dispose());
+    let promiseWasRejected = undefined;
+    const promiseReject = (err)=>{
+      promiseWasRejected = true;
+      opfsVfs.dispose();
+      return promiseReject_(err);
+    };
+    const promiseResolve = ()=>{
+      promiseWasRejected = false;
+      return promiseResolve_(sqlite3);
+    };
+    const W =
+//#if target=es6-bundler-friendly
+    new Worker(new URL("sqlite3-opfs-async-proxy.js", import.meta.url));
+//#elif target=es6-module
+    new Worker(new URL(options.proxyUri, import.meta.url));
+//#else
+    new Worker(options.proxyUri);
+//#endif
+    setTimeout(()=>{
+      /* At attempt to work around a browser-specific quirk in which
+         the Worker load is failing in such a way that we neither
+         resolve nor reject it. This workaround gives that resolve/reject
+         a time limit and rejects if that timer expires. Discussion:
+         https://sqlite.org/forum/forumpost/a708c98dcb3ef */
+      if(undefined===promiseWasRejected){
+        promiseReject(
+          new Error("Timeout while waiting for OPFS async proxy worker.")
+        );
+      }
+    }, 4000);
+    W._originalOnError = W.onerror /* will be restored later */;
+    W.onerror = function(err){
+      // The error object doesn't contain any useful info when the
+      // failure is, e.g., that the remote script is 404.
+      error("Error initializing OPFS asyncer:",err);
+      promiseReject(new Error("Loading OPFS async Worker failed for unknown reasons."));
+    };
+    const pDVfs = capi.sqlite3_vfs_find(null)/*pointer to default VFS*/;
+    const dVfs = pDVfs
+          ? new sqlite3_vfs(pDVfs)
+          : null /* dVfs will be null when sqlite3 is built with
+                    SQLITE_OS_OTHER. */;
+    opfsIoMethods.$iVersion = 1;
+    opfsVfs.$iVersion = 2/*yes, two*/;
+    opfsVfs.$szOsFile = capi.sqlite3_file.structInfo.sizeof;
+    opfsVfs.$mxPathname = 1024/* sure, why not? The OPFS name length limit
+                                 is undocumented/unspecified. */;
+    opfsVfs.$zName = wasm.allocCString("opfs");
+    // All C-side memory of opfsVfs is zeroed out, but just to be explicit:
+    opfsVfs.$xDlOpen = opfsVfs.$xDlError = opfsVfs.$xDlSym = opfsVfs.$xDlClose = null;
+    opfsVfs.addOnDispose(
+      '$zName', opfsVfs.$zName,
+      'cleanup default VFS wrapper', ()=>(dVfs ? dVfs.dispose() : null)
+    );
+    /**
+       Pedantic sidebar about opfsVfs.ondispose: the entries in that array
+       are items to clean up when opfsVfs.dispose() is called, but in this
+       environment it will never be called. The VFS instance simply
+       hangs around until the WASM module instance is cleaned up. We
+       "could" _hypothetically_ clean it up by "importing" an
+       sqlite3_os_end() impl into the wasm build, but the shutdown order
+       of the wasm engine and the JS one are undefined so there is no
+       guaranty that the opfsVfs instance would be available in one
+       environment or the other when sqlite3_os_end() is called (_if_ it
+       gets called at all in a wasm build, which is undefined).
+    */
+    /**
+       State which we send to the async-api Worker or share with it.
+       This object must initially contain only cloneable or sharable
+       objects. After the worker's "inited" message arrives, other types
+       of data may be added to it.
+
+       For purposes of Atomics.wait() and Atomics.notify(), we use a
+       SharedArrayBuffer with one slot reserved for each of the API
+       proxy's methods. The sync side of the API uses Atomics.wait()
+       on the corresponding slot and the async side uses
+       Atomics.notify() on that slot.
+
+       The approach of using a single SAB to serialize comms for all
+       instances might(?) lead to deadlock situations in multi-db
+       cases. We should probably have one SAB here with a single slot
+       for locking a per-file initialization step and then allocate a
+       separate SAB like the above one for each file. That will
+       require a bit of acrobatics but should be feasible. The most
+       problematic part is that xOpen() would have to use
+       postMessage() to communicate its SharedArrayBuffer, and mixing
+       that approach with Atomics.wait/notify() gets a bit messy.
+    */
+    const state = Object.create(null);
+    state.verbose = options.verbose;
+    state.littleEndian = (()=>{
+      const buffer = new ArrayBuffer(2);
+      new DataView(buffer).setInt16(0, 256, true /* ==>littleEndian */);
+      // Int16Array uses the platform's endianness.
+      return new Int16Array(buffer)[0] === 256;
+    })();
+    /**
+       asyncIdleWaitTime is how long (ms) to wait, in the async proxy,
+       for each Atomics.wait() when waiting on inbound VFS API calls.
+       We need to wake up periodically to give the thread a chance to
+       do other things. If this is too high (e.g. 500ms) then even two
+       workers/tabs can easily run into locking errors. Some multiple
+       of this value is also used for determining how long to wait on
+       lock contention to free up.
+    */
+    state.asyncIdleWaitTime = 150;
+
+    /**
+       Whether the async counterpart should log exceptions to
+       the serialization channel. That produces a great deal of
+       noise for seemingly innocuous things like xAccess() checks
+       for missing files, so this option may have one of 3 values:
+
+       0 = no exception logging.
+
+       1 = only log exceptions for "significant" ops like xOpen(),
+       xRead(), and xWrite().
+
+       2 = log all exceptions.
+    */
+    state.asyncS11nExceptions = 1;
+    /* Size of file I/O buffer block. 64k = max sqlite3 page size, and
+       xRead/xWrite() will never deal in blocks larger than that. */
+    state.fileBufferSize = 1024 * 64;
+    state.sabS11nOffset = state.fileBufferSize;
+    /**
+       The size of the block in our SAB for serializing arguments and
+       result values. Needs to be large enough to hold serialized
+       values of any of the proxied APIs. Filenames are the largest
+       part but are limited to opfsVfs.$mxPathname bytes. We also
+       store exceptions there, so it needs to be long enough to hold
+       a reasonably long exception string.
+    */
+    state.sabS11nSize = opfsVfs.$mxPathname * 2;
+    /**
+       The SAB used for all data I/O between the synchronous and
+       async halves (file i/o and arg/result s11n).
+    */
+    state.sabIO = new SharedArrayBuffer(
+      state.fileBufferSize/* file i/o block */
+      + state.sabS11nSize/* argument/result serialization block */
+    );
+    state.opIds = Object.create(null);
+    const metrics = Object.create(null);
+    {
+      /* Indexes for use in our SharedArrayBuffer... */
+      let i = 0;
+      /* SAB slot used to communicate which operation is desired
+         between both workers. This worker writes to it and the other
+         listens for changes. */
+      state.opIds.whichOp = i++;
+      /* Slot for storing return values. This worker listens to that
+         slot and the other worker writes to it. */
+      state.opIds.rc = i++;
+      /* Each function gets an ID which this worker writes to
+         the whichOp slot. The async-api worker uses Atomic.wait()
+         on the whichOp slot to figure out which operation to run
+         next. */
+      state.opIds.xAccess = i++;
+      state.opIds.xClose = i++;
+      state.opIds.xDelete = i++;
+      state.opIds.xDeleteNoWait = i++;
+      state.opIds.xFileSize = i++;
+      state.opIds.xLock = i++;
+      state.opIds.xOpen = i++;
+      state.opIds.xRead = i++;
+      state.opIds.xSleep = i++;
+      state.opIds.xSync = i++;
+      state.opIds.xTruncate = i++;
+      state.opIds.xUnlock = i++;
+      state.opIds.xWrite = i++;
+      state.opIds.mkdir = i++;
+      state.opIds['opfs-async-metrics'] = i++;
+      state.opIds['opfs-async-shutdown'] = i++;
+      /* The retry slot is used by the async part for wait-and-retry
+         semantics. Though we could hypothetically use the xSleep slot
+         for that, doing so might lead to undesired side effects. */
+      state.opIds.retry = i++;
+      state.sabOP = new SharedArrayBuffer(
+        i * 4/* ==sizeof int32, noting that Atomics.wait() and friends
+                can only function on Int32Array views of an SAB. */);
+      opfsUtil.metrics.reset();
+    }
+    /**
+       SQLITE_xxx constants to export to the async worker
+       counterpart...
+    */
+    state.sq3Codes = Object.create(null);
+    [
+      'SQLITE_ACCESS_EXISTS',
+      'SQLITE_ACCESS_READWRITE',
+      'SQLITE_BUSY',
+      'SQLITE_CANTOPEN',
+      'SQLITE_ERROR',
+      'SQLITE_IOERR',
+      'SQLITE_IOERR_ACCESS',
+      'SQLITE_IOERR_CLOSE',
+      'SQLITE_IOERR_DELETE',
+      'SQLITE_IOERR_FSYNC',
+      'SQLITE_IOERR_LOCK',
+      'SQLITE_IOERR_READ',
+      'SQLITE_IOERR_SHORT_READ',
+      'SQLITE_IOERR_TRUNCATE',
+      'SQLITE_IOERR_UNLOCK',
+      'SQLITE_IOERR_WRITE',
+      'SQLITE_LOCK_EXCLUSIVE',
+      'SQLITE_LOCK_NONE',
+      'SQLITE_LOCK_PENDING',
+      'SQLITE_LOCK_RESERVED',
+      'SQLITE_LOCK_SHARED',
+      'SQLITE_LOCKED',
+      'SQLITE_MISUSE',
+      'SQLITE_NOTFOUND',
+      'SQLITE_OPEN_CREATE',
+      'SQLITE_OPEN_DELETEONCLOSE',
+      'SQLITE_OPEN_MAIN_DB',
+      'SQLITE_OPEN_READONLY'
+    ].forEach((k)=>{
+      if(undefined === (state.sq3Codes[k] = capi[k])){
+        toss("Maintenance required: not found:",k);
+      }
+    });
+    state.opfsFlags = Object.assign(Object.create(null),{
+      /**
+         Flag for use with xOpen(). URI flag "opfs-unlock-asap=1"
+         enables this. See defaultUnlockAsap, below.
+       */
+      OPFS_UNLOCK_ASAP: 0x01,
+      /**
+         Flag for use with xOpen(). URI flag "delete-before-open=1"
+         tells the VFS to delete the db file before attempting to open
+         it. This can be used, e.g., to replace a db which has been
+         corrupted (without forcing us to expose a delete/unlink()
+         function in the public API).
+
+         Failure to unlink the file is ignored but may lead to
+         downstream errors.  An unlink can fail if, e.g., another tab
+         has the handle open.
+
+         It goes without saying that deleting a file out from under another
+         instance results in Undefined Behavior.
+      */
+      OPFS_UNLINK_BEFORE_OPEN: 0x02,
+      /**
+         If true, any async routine which implicitly acquires a sync
+         access handle (i.e. an OPFS lock) will release that lock at
+         the end of the call which acquires it. If false, such
+         "autolocks" are not released until the VFS is idle for some
+         brief amount of time.
+
+         The benefit of enabling this is much higher concurrency. The
+         down-side is much-reduced performance (as much as a 4x decrease
+         in speedtest1).
+      */
+      defaultUnlockAsap: false
+    });
+
+    /**
+       Runs the given operation (by name) in the async worker
+       counterpart, waits for its response, and returns the result
+       which the async worker writes to SAB[state.opIds.rc]. The
+       2nd and subsequent arguments must be the aruguments for the
+       async op.
+    */
+    const opRun = (op,...args)=>{
+      const opNdx = state.opIds[op] || toss("Invalid op ID:",op);
+      state.s11n.serialize(...args);
+      Atomics.store(state.sabOPView, state.opIds.rc, -1);
+      Atomics.store(state.sabOPView, state.opIds.whichOp, opNdx);
+      Atomics.notify(state.sabOPView, state.opIds.whichOp)
+      /* async thread will take over here */;
+      const t = performance.now();
+      while('not-equal'!==Atomics.wait(state.sabOPView, state.opIds.rc, -1)){
+        /*
+          The reason for this loop is buried in the details of a long
+          discussion at:
+
+          https://github.com/sqlite/sqlite-wasm/issues/12
+
+          Summary: in at least one browser flavor, under high loads,
+          the wait()/notify() pairings can get out of sync. Calling
+          wait() here until it returns 'not-equal' gets them back in
+          sync.
+        */
+      }
+      /* When the above wait() call returns 'not-equal', the async
+         half will have completed the operation and reported its results
+         in the state.opIds.rc slot of the SAB. */
+      const rc = Atomics.load(state.sabOPView, state.opIds.rc);
+      metrics[op].wait += performance.now() - t;
+      if(rc && state.asyncS11nExceptions){
+        const err = state.s11n.deserialize();
+        if(err) error(op+"() async error:",...err);
+      }
+      return rc;
+    };
+
+    /**
+       Not part of the public API. Only for test/development use.
+    */
+    opfsUtil.debug = {
+      asyncShutdown: ()=>{
+        warn("Shutting down OPFS async listener. The OPFS VFS will no longer work.");
+        opRun('opfs-async-shutdown');
+      },
+      asyncRestart: ()=>{
+        warn("Attempting to restart OPFS VFS async listener. Might work, might not.");
+        W.postMessage({type: 'opfs-async-restart'});
+      }
+    };
+
+    const initS11n = ()=>{
+      /**
+         !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+         ACHTUNG: this code is 100% duplicated in the other half of
+         this proxy! The documentation is maintained in the
+         "synchronous half".
+         !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+         This proxy de/serializes cross-thread function arguments and
+         output-pointer values via the state.sabIO SharedArrayBuffer,
+         using the region defined by (state.sabS11nOffset,
+         state.sabS11nOffset + state.sabS11nSize]. Only one dataset is
+         recorded at a time.
+
+         This is not a general-purpose format. It only supports the
+         range of operations, and data sizes, needed by the
+         sqlite3_vfs and sqlite3_io_methods operations. Serialized
+         data are transient and this serialization algorithm may
+         change at any time.
+
+         The data format can be succinctly summarized as:
+
+         Nt...Td...D
+
+         Where:
+
+         - N = number of entries (1 byte)
+
+         - t = type ID of first argument (1 byte)
+
+         - ...T = type IDs of the 2nd and subsequent arguments (1 byte
+         each).
+
+         - d = raw bytes of first argument (per-type size).
+
+         - ...D = raw bytes of the 2nd and subsequent arguments (per-type
+         size).
+
+         All types except strings have fixed sizes. Strings are stored
+         using their TextEncoder/TextDecoder representations. It would
+         arguably make more sense to store them as Int16Arrays of
+         their JS character values, but how best/fastest to get that
+         in and out of string form is an open point. Initial
+         experimentation with that approach did not gain us any speed.
+
+         Historical note: this impl was initially about 1% this size by
+         using using JSON.stringify/parse(), but using fit-to-purpose
+         serialization saves considerable runtime.
+      */
+      if(state.s11n) return state.s11n;
+      const textDecoder = new TextDecoder(),
+            textEncoder = new TextEncoder('utf-8'),
+            viewU8 = new Uint8Array(state.sabIO, state.sabS11nOffset, state.sabS11nSize),
+            viewDV = new DataView(state.sabIO, state.sabS11nOffset, state.sabS11nSize);
+      state.s11n = Object.create(null);
+      /* Only arguments and return values of these types may be
+         serialized. This covers the whole range of types needed by the
+         sqlite3_vfs API. */
+      const TypeIds = Object.create(null);
+      TypeIds.number  = { id: 1, size: 8, getter: 'getFloat64', setter: 'setFloat64' };
+      TypeIds.bigint  = { id: 2, size: 8, getter: 'getBigInt64', setter: 'setBigInt64' };
+      TypeIds.boolean = { id: 3, size: 4, getter: 'getInt32', setter: 'setInt32' };
+      TypeIds.string =  { id: 4 };
+
+      const getTypeId = (v)=>(
+        TypeIds[typeof v]
+          || toss("Maintenance required: this value type cannot be serialized.",v)
+      );
+      const getTypeIdById = (tid)=>{
+        switch(tid){
+            case TypeIds.number.id: return TypeIds.number;
+            case TypeIds.bigint.id: return TypeIds.bigint;
+            case TypeIds.boolean.id: return TypeIds.boolean;
+            case TypeIds.string.id: return TypeIds.string;
+            default: toss("Invalid type ID:",tid);
+        }
+      };
+
+      /**
+         Returns an array of the deserialized state stored by the most
+         recent serialize() operation (from from this thread or the
+         counterpart thread), or null if the serialization buffer is
+         empty.  If passed a truthy argument, the serialization buffer
+         is cleared after deserialization.
+      */
+      state.s11n.deserialize = function(clear=false){
+        ++metrics.s11n.deserialize.count;
+        const t = performance.now();
+        const argc = viewU8[0];
+        const rc = argc ? [] : null;
+        if(argc){
+          const typeIds = [];
+          let offset = 1, i, n, v;
+          for(i = 0; i < argc; ++i, ++offset){
+            typeIds.push(getTypeIdById(viewU8[offset]));
+          }
+          for(i = 0; i < argc; ++i){
+            const t = typeIds[i];
+            if(t.getter){
+              v = viewDV[t.getter](offset, state.littleEndian);
+              offset += t.size;
+            }else{/*String*/
+              n = viewDV.getInt32(offset, state.littleEndian);
+              offset += 4;
+              v = textDecoder.decode(viewU8.slice(offset, offset+n));
+              offset += n;
+            }
+            rc.push(v);
+          }
+        }
+        if(clear) viewU8[0] = 0;
+        //log("deserialize:",argc, rc);
+        metrics.s11n.deserialize.time += performance.now() - t;
+        return rc;
+      };
+
+      /**
+         Serializes all arguments to the shared buffer for consumption
+         by the counterpart thread.
+
+         This routine is only intended for serializing OPFS VFS
+         arguments and (in at least one special case) result values,
+         and the buffer is sized to be able to comfortably handle
+         those.
+
+         If passed no arguments then it zeroes out the serialization
+         state.
+      */
+      state.s11n.serialize = function(...args){
+        const t = performance.now();
+        ++metrics.s11n.serialize.count;
+        if(args.length){
+          //log("serialize():",args);
+          const typeIds = [];
+          let i = 0, offset = 1;
+          viewU8[0] = args.length & 0xff /* header = # of args */;
+          for(; i < args.length; ++i, ++offset){
+            /* Write the TypeIds.id value into the next args.length
+               bytes. */
+            typeIds.push(getTypeId(args[i]));
+            viewU8[offset] = typeIds[i].id;
+          }
+          for(i = 0; i < args.length; ++i) {
+            /* Deserialize the following bytes based on their
+               corresponding TypeIds.id from the header. */
+            const t = typeIds[i];
+            if(t.setter){
+              viewDV[t.setter](offset, args[i], state.littleEndian);
+              offset += t.size;
+            }else{/*String*/
+              const s = textEncoder.encode(args[i]);
+              viewDV.setInt32(offset, s.byteLength, state.littleEndian);
+              offset += 4;
+              viewU8.set(s, offset);
+              offset += s.byteLength;
+            }
+          }
+          //log("serialize() result:",viewU8.slice(0,offset));
+        }else{
+          viewU8[0] = 0;
+        }
+        metrics.s11n.serialize.time += performance.now() - t;
+      };
+      return state.s11n;
+    }/*initS11n()*/;
+
+    /**
+       Generates a random ASCII string len characters long, intended for
+       use as a temporary file name.
+    */
+    const randomFilename = function f(len=16){
+      if(!f._chars){
+        f._chars = "abcdefghijklmnopqrstuvwxyz"+
+          "ABCDEFGHIJKLMNOPQRSTUVWXYZ"+
+          "012346789";
+        f._n = f._chars.length;
+      }
+      const a = [];
+      let i = 0;
+      for( ; i < len; ++i){
+        const ndx = Math.random() * (f._n * 64) % f._n | 0;
+        a[i] = f._chars[ndx];
+      }
+      return a.join("");
+      /*
+        An alternative impl. with an unpredictable length
+        but much simpler:
+
+        Math.floor(Math.random() * Number.MAX_SAFE_INTEGER).toString(36)
+      */
+    };
+
+    /**
+       Map of sqlite3_file pointers to objects constructed by xOpen().
+    */
+    const __openFiles = Object.create(null);
+
+    const opTimer = Object.create(null);
+    opTimer.op = undefined;
+    opTimer.start = undefined;
+    const mTimeStart = (op)=>{
+      opTimer.start = performance.now();
+      opTimer.op = op;
+      ++metrics[op].count;
+    };
+    const mTimeEnd = ()=>(
+      metrics[opTimer.op].time += performance.now() - opTimer.start
+    );
+
+    /**
+       Impls for the sqlite3_io_methods methods. Maintenance reminder:
+       members are in alphabetical order to simplify finding them.
+    */
+    const ioSyncWrappers = {
+      xCheckReservedLock: function(pFile,pOut){
+        /**
+           As of late 2022, only a single lock can be held on an OPFS
+           file. We have no way of checking whether any _other_ db
+           connection has a lock except by trying to obtain and (on
+           success) release a sync-handle for it, but doing so would
+           involve an inherent race condition. For the time being,
+           pending a better solution, we simply report whether the
+           given pFile is open.
+
+           Update 2024-06-12: based on forum discussions, this
+           function now always sets pOut to 0 (false):
+
+           https://sqlite.org/forum/forumpost/a2f573b00cda1372
+        */
+        wasm.poke(pOut, 0, 'i32');
+        return 0;
+      },
+      xClose: function(pFile){
+        mTimeStart('xClose');
+        let rc = 0;
+        const f = __openFiles[pFile];
+        if(f){
+          delete __openFiles[pFile];
+          rc = opRun('xClose', pFile);
+          if(f.sq3File) f.sq3File.dispose();
+        }
+        mTimeEnd();
+        return rc;
+      },
+      xDeviceCharacteristics: function(pFile){
+        return capi.SQLITE_IOCAP_UNDELETABLE_WHEN_OPEN;
+      },
+      xFileControl: function(pFile, opId, pArg){
+        /*mTimeStart('xFileControl');
+          mTimeEnd();*/
+        return capi.SQLITE_NOTFOUND;
+      },
+      xFileSize: function(pFile,pSz64){
+        mTimeStart('xFileSize');
+        let rc = opRun('xFileSize', pFile);
+        if(0==rc){
+          try {
+            const sz = state.s11n.deserialize()[0];
+            wasm.poke(pSz64, sz, 'i64');
+          }catch(e){
+            error("Unexpected error reading xFileSize() result:",e);
+            rc = state.sq3Codes.SQLITE_IOERR;
+          }
+        }
+        mTimeEnd();
+        return rc;
+      },
+      xLock: function(pFile,lockType){
+        mTimeStart('xLock');
+        const f = __openFiles[pFile];
+        let rc = 0;
+        /* All OPFS locks are exclusive locks. If xLock() has
+           previously succeeded, do nothing except record the lock
+           type. If no lock is active, have the async counterpart
+           lock the file. */
+        if( !f.lockType ) {
+          rc = opRun('xLock', pFile, lockType);
+          if( 0===rc ) f.lockType = lockType;
+        }else{
+          f.lockType = lockType;
+        }
+        mTimeEnd();
+        return rc;
+      },
+      xRead: function(pFile,pDest,n,offset64){
+        mTimeStart('xRead');
+        const f = __openFiles[pFile];
+        let rc;
+        try {
+          rc = opRun('xRead',pFile, n, Number(offset64));
+          if(0===rc || capi.SQLITE_IOERR_SHORT_READ===rc){
+            /**
+               Results get written to the SharedArrayBuffer f.sabView.
+               Because the heap is _not_ a SharedArrayBuffer, we have
+               to copy the results. TypedArray.set() seems to be the
+               fastest way to copy this. */
+            wasm.heap8u().set(f.sabView.subarray(0, n), pDest);
+          }
+        }catch(e){
+          error("xRead(",arguments,") failed:",e,f);
+          rc = capi.SQLITE_IOERR_READ;
+        }
+        mTimeEnd();
+        return rc;
+      },
+      xSync: function(pFile,flags){
+        mTimeStart('xSync');
+        ++metrics.xSync.count;
+        const rc = opRun('xSync', pFile, flags);
+        mTimeEnd();
+        return rc;
+      },
+      xTruncate: function(pFile,sz64){
+        mTimeStart('xTruncate');
+        const rc = opRun('xTruncate', pFile, Number(sz64));
+        mTimeEnd();
+        return rc;
+      },
+      xUnlock: function(pFile,lockType){
+        mTimeStart('xUnlock');
+        const f = __openFiles[pFile];
+        let rc = 0;
+        if( capi.SQLITE_LOCK_NONE === lockType
+          && f.lockType ){
+          rc = opRun('xUnlock', pFile, lockType);
+        }
+        if( 0===rc ) f.lockType = lockType;
+        mTimeEnd();
+        return rc;
+      },
+      xWrite: function(pFile,pSrc,n,offset64){
+        mTimeStart('xWrite');
+        const f = __openFiles[pFile];
+        let rc;
+        try {
+          f.sabView.set(wasm.heap8u().subarray(pSrc, pSrc+n));
+          rc = opRun('xWrite', pFile, n, Number(offset64));
+        }catch(e){
+          error("xWrite(",arguments,") failed:",e,f);
+          rc = capi.SQLITE_IOERR_WRITE;
+        }
+        mTimeEnd();
+        return rc;
+      }
+    }/*ioSyncWrappers*/;
+
+    /**
+       Impls for the sqlite3_vfs methods. Maintenance reminder: members
+       are in alphabetical order to simplify finding them.
+    */
+    const vfsSyncWrappers = {
+      xAccess: function(pVfs,zName,flags,pOut){
+        mTimeStart('xAccess');
+        const rc = opRun('xAccess', wasm.cstrToJs(zName));
+        wasm.poke( pOut, (rc ? 0 : 1), 'i32' );
+        mTimeEnd();
+        return 0;
+      },
+      xCurrentTime: function(pVfs,pOut){
+        /* If it turns out that we need to adjust for timezone, see:
+           https://stackoverflow.com/a/11760121/1458521 */
+        wasm.poke(pOut, 2440587.5 + (new Date().getTime()/86400000),
+                  'double');
+        return 0;
+      },
+      xCurrentTimeInt64: function(pVfs,pOut){
+        wasm.poke(pOut, (2440587.5 * 86400000) + new Date().getTime(),
+                  'i64');
+        return 0;
+      },
+      xDelete: function(pVfs, zName, doSyncDir){
+        mTimeStart('xDelete');
+        const rc = opRun('xDelete', wasm.cstrToJs(zName), doSyncDir, false);
+        mTimeEnd();
+        return rc;
+      },
+      xFullPathname: function(pVfs,zName,nOut,pOut){
+        /* Until/unless we have some notion of "current dir"
+           in OPFS, simply copy zName to pOut... */
+        const i = wasm.cstrncpy(pOut, zName, nOut);
+        return i<nOut ? 0 : capi.SQLITE_CANTOPEN
+        /*CANTOPEN is required by the docs but SQLITE_RANGE would be a closer match*/;
+      },
+      xGetLastError: function(pVfs,nOut,pOut){
+        /* TODO: store exception.message values from the async
+           partner in a dedicated SharedArrayBuffer, noting that we'd have
+           to encode them... TextEncoder can do that for us. */
+        warn("OPFS xGetLastError() has nothing sensible to return.");
+        return 0;
+      },
+      //xSleep is optionally defined below
+      xOpen: function f(pVfs, zName, pFile, flags, pOutFlags){
+        mTimeStart('xOpen');
+        let opfsFlags = 0;
+        if(0===zName){
+          zName = randomFilename();
+        }else if(wasm.isPtr(zName)){
+          if(capi.sqlite3_uri_boolean(zName, "opfs-unlock-asap", 0)){
+            /* -----------------------^^^^^ MUST pass the untranslated
+               C-string here. */
+            opfsFlags |= state.opfsFlags.OPFS_UNLOCK_ASAP;
+          }
+          if(capi.sqlite3_uri_boolean(zName, "delete-before-open", 0)){
+            opfsFlags |= state.opfsFlags.OPFS_UNLINK_BEFORE_OPEN;
+          }
+          zName = wasm.cstrToJs(zName);
+          //warn("xOpen zName =",zName, "opfsFlags =",opfsFlags);
+        }
+        const fh = Object.create(null);
+        fh.fid = pFile;
+        fh.filename = zName;
+        fh.sab = new SharedArrayBuffer(state.fileBufferSize);
+        fh.flags = flags;
+        fh.readOnly = !(sqlite3.SQLITE_OPEN_CREATE & flags)
+          && !!(flags & capi.SQLITE_OPEN_READONLY);
+        const rc = opRun('xOpen', pFile, zName, flags, opfsFlags);
+        if(!rc){
+          /* Recall that sqlite3_vfs::xClose() will be called, even on
+             error, unless pFile->pMethods is NULL. */
+          if(fh.readOnly){
+            wasm.poke(pOutFlags, capi.SQLITE_OPEN_READONLY, 'i32');
+          }
+          __openFiles[pFile] = fh;
+          fh.sabView = state.sabFileBufView;
+          fh.sq3File = new sqlite3_file(pFile);
+          fh.sq3File.$pMethods = opfsIoMethods.pointer;
+          fh.lockType = capi.SQLITE_LOCK_NONE;
+        }
+        mTimeEnd();
+        return rc;
+      }/*xOpen()*/
+    }/*vfsSyncWrappers*/;
+
+    if(dVfs){
+      opfsVfs.$xRandomness = dVfs.$xRandomness;
+      opfsVfs.$xSleep = dVfs.$xSleep;
+    }
+    if(!opfsVfs.$xRandomness){
+      /* If the default VFS has no xRandomness(), add a basic JS impl... */
+      vfsSyncWrappers.xRandomness = function(pVfs, nOut, pOut){
+        const heap = wasm.heap8u();
+        let i = 0;
+        for(; i < nOut; ++i) heap[pOut + i] = (Math.random()*255000) & 0xFF;
+        return i;
+      };
+    }
+    if(!opfsVfs.$xSleep){
+      /* If we can inherit an xSleep() impl from the default VFS then
+         assume it's sane and use it, otherwise install a JS-based
+         one. */
+      vfsSyncWrappers.xSleep = function(pVfs,ms){
+        Atomics.wait(state.sabOPView, state.opIds.xSleep, 0, ms);
+        return 0;
+      };
+    }
+
+    /**
+       Expects an OPFS file path. It gets resolved, such that ".."
+       components are properly expanded, and returned. If the 2nd arg
+       is true, the result is returned as an array of path elements,
+       else an absolute path string is returned.
+    */
+    opfsUtil.getResolvedPath = function(filename,splitIt){
+      const p = new URL(filename, "file://irrelevant").pathname;
+      return splitIt ? p.split('/').filter((v)=>!!v) : p;
+    };
+
+    /**
+       Takes the absolute path to a filesystem element. Returns an
+       array of [handleOfContainingDir, filename]. If the 2nd argument
+       is truthy then each directory element leading to the file is
+       created along the way. Throws if any creation or resolution
+       fails.
+    */
+    opfsUtil.getDirForFilename = async function f(absFilename, createDirs = false){
+      const path = opfsUtil.getResolvedPath(absFilename, true);
+      const filename = path.pop();
+      let dh = opfsUtil.rootDirectory;
+      for(const dirName of path){
+        if(dirName){
+          dh = await dh.getDirectoryHandle(dirName, {create: !!createDirs});
+        }
+      }
+      return [dh, filename];
+    };
+
+    /**
+       Creates the given directory name, recursively, in
+       the OPFS filesystem. Returns true if it succeeds or the
+       directory already exists, else false.
+    */
+    opfsUtil.mkdir = async function(absDirName){
+      try {
+        await opfsUtil.getDirForFilename(absDirName+"/filepart", true);
+        return true;
+      }catch(e){
+        //sqlite3.config.warn("mkdir(",absDirName,") failed:",e);
+        return false;
+      }
+    };
+    /**
+       Checks whether the given OPFS filesystem entry exists,
+       returning true if it does, false if it doesn't or if an
+       exception is intercepted while trying to make the
+       determination.
+    */
+    opfsUtil.entryExists = async function(fsEntryName){
+      try {
+        const [dh, fn] = await opfsUtil.getDirForFilename(fsEntryName);
+        await dh.getFileHandle(fn);
+        return true;
+      }catch(e){
+        return false;
+      }
+    };
+
+    /**
+       Generates a random ASCII string, intended for use as a
+       temporary file name. Its argument is the length of the string,
+       defaulting to 16.
+    */
+    opfsUtil.randomFilename = randomFilename;
+
+    /**
+       Returns a promise which resolves to an object which represents
+       all files and directories in the OPFS tree. The top-most object
+       has two properties: `dirs` is an array of directory entries
+       (described below) and `files` is a list of file names for all
+       files in that directory.
+
+       Traversal starts at sqlite3.opfs.rootDirectory.
+
+       Each `dirs` entry is an object in this form:
+
+       ```
+       { name: directoryName,
+         dirs: [...subdirs],
+         files: [...file names]
+       }
+       ```
+
+       The `files` and `subdirs` entries are always set but may be
+       empty arrays.
+
+       The returned object has the same structure but its `name` is
+       an empty string. All returned objects are created with
+       Object.create(null), so have no prototype.
+
+       Design note: the entries do not contain more information,
+       e.g. file sizes, because getting such info is not only
+       expensive but is subject to locking-related errors.
+    */
+    opfsUtil.treeList = async function(){
+      const doDir = async function callee(dirHandle,tgt){
+        tgt.name = dirHandle.name;
+        tgt.dirs = [];
+        tgt.files = [];
+        for await (const handle of dirHandle.values()){
+          if('directory' === handle.kind){
+            const subDir = Object.create(null);
+            tgt.dirs.push(subDir);
+            await callee(handle, subDir);
+          }else{
+            tgt.files.push(handle.name);
+          }
+        }
+      };
+      const root = Object.create(null);
+      await doDir(opfsUtil.rootDirectory, root);
+      return root;
+    };
+
+    /**
+       Irrevocably deletes _all_ files in the current origin's OPFS.
+       Obviously, this must be used with great caution. It may throw
+       an exception if removal of anything fails (e.g. a file is
+       locked), but the precise conditions under which the underlying
+       APIs will throw are not documented (so we cannot tell you what
+       they are).
+    */
+    opfsUtil.rmfr = async function(){
+      const dir = opfsUtil.rootDirectory, opt = {recurse: true};
+      for await (const handle of dir.values()){
+        dir.removeEntry(handle.name, opt);
+      }
+    };
+
+    /**
+       Deletes the given OPFS filesystem entry.  As this environment
+       has no notion of "current directory", the given name must be an
+       absolute path. If the 2nd argument is truthy, deletion is
+       recursive (use with caution!).
+
+       The returned Promise resolves to true if the deletion was
+       successful, else false (but...). The OPFS API reports the
+       reason for the failure only in human-readable form, not
+       exceptions which can be type-checked to determine the
+       failure. Because of that...
+
+       If the final argument is truthy then this function will
+       propagate any exception on error, rather than returning false.
+    */
+    opfsUtil.unlink = async function(fsEntryName, recursive = false,
+                                     throwOnError = false){
+      try {
+        const [hDir, filenamePart] =
+              await opfsUtil.getDirForFilename(fsEntryName, false);
+        await hDir.removeEntry(filenamePart, {recursive});
+        return true;
+      }catch(e){
+        if(throwOnError){
+          throw new Error("unlink(",arguments[0],") failed: "+e.message,{
+            cause: e
+          });
+        }
+        return false;
+      }
+    };
+
+    /**
+       Traverses the OPFS filesystem, calling a callback for each
+       entry.  The argument may be either a callback function or an
+       options object with any of the following properties:
+
+       - `callback`: function which gets called for each filesystem
+         entry.  It gets passed 3 arguments: 1) the
+         FileSystemFileHandle or FileSystemDirectoryHandle of each
+         entry (noting that both are instanceof FileSystemHandle). 2)
+         the FileSystemDirectoryHandle of the parent directory. 3) the
+         current depth level, with 0 being at the top of the tree
+         relative to the starting directory. If the callback returns a
+         literal false, as opposed to any other falsy value, traversal
+         stops without an error. Any exceptions it throws are
+         propagated. Results are undefined if the callback manipulate
+         the filesystem (e.g. removing or adding entries) because the
+         how OPFS iterators behave in the face of such changes is
+         undocumented.
+
+       - `recursive` [bool=true]: specifies whether to recurse into
+         subdirectories or not. Whether recursion is depth-first or
+         breadth-first is unspecified!
+
+       - `directory` [FileSystemDirectoryEntry=sqlite3.opfs.rootDirectory]
+         specifies the starting directory.
+
+       If this function is passed a function, it is assumed to be the
+       callback.
+
+       Returns a promise because it has to (by virtue of being async)
+       but that promise has no specific meaning: the traversal it
+       performs is synchronous. The promise must be used to catch any
+       exceptions propagated by the callback, however.
+    */
+    opfsUtil.traverse = async function(opt){
+      const defaultOpt = {
+        recursive: true,
+        directory: opfsUtil.rootDirectory
+      };
+      if('function'===typeof opt){
+        opt = {callback:opt};
+      }
+      opt = Object.assign(defaultOpt, opt||{});
+      const doDir = async function callee(dirHandle, depth){
+        for await (const handle of dirHandle.values()){
+          if(false === opt.callback(handle, dirHandle, depth)) return false;
+          else if(opt.recursive && 'directory' === handle.kind){
+            if(false === await callee(handle, depth + 1)) break;
+          }
+        }
+      };
+      doDir(opt.directory, 0);
+    };
+
+    /**
+       impl of importDb() when it's given a function as its second
+       argument.
+    */
+    const importDbChunked = async function(filename, callback){
+      const [hDir, fnamePart] = await opfsUtil.getDirForFilename(filename, true);
+      const hFile = await hDir.getFileHandle(fnamePart, {create:true});
+      let sah = await hFile.createSyncAccessHandle();
+      let nWrote = 0, chunk, checkedHeader = false, err = false;
+      try{
+        sah.truncate(0);
+        while( undefined !== (chunk = await callback()) ){
+          if(chunk instanceof ArrayBuffer) chunk = new Uint8Array(chunk);
+          if( 0===nWrote && chunk.byteLength>=15 ){
+            util.affirmDbHeader(chunk);
+            checkedHeader = true;
+          }
+          sah.write(chunk, {at: nWrote});
+          nWrote += chunk.byteLength;
+        }
+        if( nWrote < 512 || 0!==nWrote % 512 ){
+          toss("Input size",nWrote,"is not correct for an SQLite database.");
+        }
+        if( !checkedHeader ){
+          const header = new Uint8Array(20);
+          sah.read( header, {at: 0} );
+          util.affirmDbHeader( header );
+        }
+        sah.write(new Uint8Array([1,1]), {at: 18}/*force db out of WAL mode*/);
+        return nWrote;
+      }catch(e){
+        await sah.close();
+        sah = undefined;
+        await hDir.removeEntry( fnamePart ).catch(()=>{});
+        throw e;
+      }finally {
+        if( sah ) await sah.close();
+      }
+    };
+
+    /**
+       Asynchronously imports the given bytes (a byte array or
+       ArrayBuffer) into the given database file.
+
+       Results are undefined if the given db name refers to an opened
+       db.
+
+       If passed a function for its second argument, its behaviour
+       changes: imports its data in chunks fed to it by the given
+       callback function. It calls the callback (which may be async)
+       repeatedly, expecting either a Uint8Array or ArrayBuffer (to
+       denote new input) or undefined (to denote EOF). For so long as
+       the callback continues to return non-undefined, it will append
+       incoming data to the given VFS-hosted database file. When
+       called this way, the resolved value of the returned Promise is
+       the number of bytes written to the target file.
+
+       It very specifically requires the input to be an SQLite3
+       database and throws if that's not the case.  It does so in
+       order to prevent this function from taking on a larger scope
+       than it is specifically intended to. i.e. we do not want it to
+       become a convenience for importing arbitrary files into OPFS.
+
+       This routine rewrites the database header bytes in the output
+       file (not the input array) to force disabling of WAL mode.
+
+       On error this throws and the state of the input file is
+       undefined (it depends on where the exception was triggered).
+
+       On success, resolves to the number of bytes written.
+    */
+    opfsUtil.importDb = async function(filename, bytes){
+      if( bytes instanceof Function ){
+        return importDbChunked(filename, bytes);
+      }
+      if(bytes instanceof ArrayBuffer) bytes = new Uint8Array(bytes);
+      util.affirmIsDb(bytes);
+      const n = bytes.byteLength;
+      const [hDir, fnamePart] = await opfsUtil.getDirForFilename(filename, true);
+      let sah, err, nWrote = 0;
+      try {
+        const hFile = await hDir.getFileHandle(fnamePart, {create:true});
+        sah = await hFile.createSyncAccessHandle();
+        sah.truncate(0);
+        nWrote = sah.write(bytes, {at: 0});
+        if(nWrote != n){
+          toss("Expected to write "+n+" bytes but wrote "+nWrote+".");
+        }
+        sah.write(new Uint8Array([1,1]), {at: 18}) /* force db out of WAL mode */;
+        return nWrote;
+      }catch(e){
+        if( sah ){ await sah.close(); sah = undefined; }
+        await hDir.removeEntry( fnamePart ).catch(()=>{});
+        throw e;
+      }finally{
+        if( sah ) await sah.close();
+      }
+    };
+
+    if(sqlite3.oo1){
+      const OpfsDb = function(...args){
+        const opt = sqlite3.oo1.DB.dbCtorHelper.normalizeArgs(...args);
+        opt.vfs = opfsVfs.$zName;
+        sqlite3.oo1.DB.dbCtorHelper.call(this, opt);
+      };
+      OpfsDb.prototype = Object.create(sqlite3.oo1.DB.prototype);
+      sqlite3.oo1.OpfsDb = OpfsDb;
+      OpfsDb.importDb = opfsUtil.importDb;
+      sqlite3.oo1.DB.dbCtorHelper.setVfsPostOpenCallback(
+        opfsVfs.pointer,
+        function(oo1Db, sqlite3){
+          /* Set a relatively high default busy-timeout handler to
+             help OPFS dbs deal with multi-tab/multi-worker
+             contention. */
+          sqlite3.capi.sqlite3_busy_timeout(oo1Db, 10000);
+        }
+      );
+    }/*extend sqlite3.oo1*/
+
+    const sanityCheck = function(){
+      const scope = wasm.scopedAllocPush();
+      const sq3File = new sqlite3_file();
+      try{
+        const fid = sq3File.pointer;
+        const openFlags = capi.SQLITE_OPEN_CREATE
+              | capi.SQLITE_OPEN_READWRITE
+        //| capi.SQLITE_OPEN_DELETEONCLOSE
+              | capi.SQLITE_OPEN_MAIN_DB;
+        const pOut = wasm.scopedAlloc(8);
+        const dbFile = "/sanity/check/file"+randomFilename(8);
+        const zDbFile = wasm.scopedAllocCString(dbFile);
+        let rc;
+        state.s11n.serialize("This is ä string.");
+        rc = state.s11n.deserialize();
+        log("deserialize() says:",rc);
+        if("This is ä string."!==rc[0]) toss("String d13n error.");
+        vfsSyncWrappers.xAccess(opfsVfs.pointer, zDbFile, 0, pOut);
+        rc = wasm.peek(pOut,'i32');
+        log("xAccess(",dbFile,") exists ?=",rc);
+        rc = vfsSyncWrappers.xOpen(opfsVfs.pointer, zDbFile,
+                                   fid, openFlags, pOut);
+        log("open rc =",rc,"state.sabOPView[xOpen] =",
+            state.sabOPView[state.opIds.xOpen]);
+        if(0!==rc){
+          error("open failed with code",rc);
+          return;
+        }
+        vfsSyncWrappers.xAccess(opfsVfs.pointer, zDbFile, 0, pOut);
+        rc = wasm.peek(pOut,'i32');
+        if(!rc) toss("xAccess() failed to detect file.");
+        rc = ioSyncWrappers.xSync(sq3File.pointer, 0);
+        if(rc) toss('sync failed w/ rc',rc);
+        rc = ioSyncWrappers.xTruncate(sq3File.pointer, 1024);
+        if(rc) toss('truncate failed w/ rc',rc);
+        wasm.poke(pOut,0,'i64');
+        rc = ioSyncWrappers.xFileSize(sq3File.pointer, pOut);
+        if(rc) toss('xFileSize failed w/ rc',rc);
+        log("xFileSize says:",wasm.peek(pOut, 'i64'));
+        rc = ioSyncWrappers.xWrite(sq3File.pointer, zDbFile, 10, 1);
+        if(rc) toss("xWrite() failed!");
+        const readBuf = wasm.scopedAlloc(16);
+        rc = ioSyncWrappers.xRead(sq3File.pointer, readBuf, 6, 2);
+        wasm.poke(readBuf+6,0);
+        let jRead = wasm.cstrToJs(readBuf);
+        log("xRead() got:",jRead);
+        if("sanity"!==jRead) toss("Unexpected xRead() value.");
+        if(vfsSyncWrappers.xSleep){
+          log("xSleep()ing before close()ing...");
+          vfsSyncWrappers.xSleep(opfsVfs.pointer,2000);
+          log("waking up from xSleep()");
+        }
+        rc = ioSyncWrappers.xClose(fid);
+        log("xClose rc =",rc,"sabOPView =",state.sabOPView);
+        log("Deleting file:",dbFile);
+        vfsSyncWrappers.xDelete(opfsVfs.pointer, zDbFile, 0x1234);
+        vfsSyncWrappers.xAccess(opfsVfs.pointer, zDbFile, 0, pOut);
+        rc = wasm.peek(pOut,'i32');
+        if(rc) toss("Expecting 0 from xAccess(",dbFile,") after xDelete().");
+        warn("End of OPFS sanity checks.");
+      }finally{
+        sq3File.dispose();
+        wasm.scopedAllocPop(scope);
+      }
+    }/*sanityCheck()*/;
+
+    W.onmessage = function({data}){
+      //log("Worker.onmessage:",data);
+      switch(data.type){
+          case 'opfs-unavailable':
+            /* Async proxy has determined that OPFS is unavailable. There's
+               nothing more for us to do here. */
+            promiseReject(new Error(data.payload.join(' ')));
+            break;
+          case 'opfs-async-loaded':
+            /* Arrives as soon as the asyc proxy finishes loading.
+               Pass our config and shared state on to the async
+               worker. */
+            W.postMessage({type: 'opfs-async-init',args: state});
+            break;
+          case 'opfs-async-inited': {
+            /* Indicates that the async partner has received the 'init'
+               and has finished initializing, so the real work can
+               begin... */
+            if(true===promiseWasRejected){
+              break /* promise was already rejected via timer */;
+            }
+            try {
+              sqlite3.vfs.installVfs({
+                io: {struct: opfsIoMethods, methods: ioSyncWrappers},
+                vfs: {struct: opfsVfs, methods: vfsSyncWrappers}
+              });
+              state.sabOPView = new Int32Array(state.sabOP);
+              state.sabFileBufView = new Uint8Array(state.sabIO, 0, state.fileBufferSize);
+              state.sabS11nView = new Uint8Array(state.sabIO, state.sabS11nOffset, state.sabS11nSize);
+              initS11n();
+              if(options.sanityChecks){
+                warn("Running sanity checks because of opfs-sanity-check URL arg...");
+                sanityCheck();
+              }
+              if(thisThreadHasOPFS()){
+                navigator.storage.getDirectory().then((d)=>{
+                  W.onerror = W._originalOnError;
+                  delete W._originalOnError;
+                  sqlite3.opfs = opfsUtil;
+                  opfsUtil.rootDirectory = d;
+                  log("End of OPFS sqlite3_vfs setup.", opfsVfs);
+                  promiseResolve();
+                }).catch(promiseReject);
+              }else{
+                promiseResolve();
+              }
+            }catch(e){
+              error(e);
+              promiseReject(e);
+            }
+            break;
+          }
+          default: {
+            const errMsg = (
+              "Unexpected message from the OPFS async worker: " +
+              JSON.stringify(data)
+            );
+            error(errMsg);
+            promiseReject(new Error(errMsg));
+            break;
+          }
+      }/*switch(data.type)*/
+    }/*W.onmessage()*/;
+  })/*thePromise*/;
+  return thePromise;
+}/*installOpfsVfs()*/;
+installOpfsVfs.defaultProxyUri =
+  "sqlite3-opfs-async-proxy.js";
+globalThis.sqlite3ApiBootstrap.initializersAsync.push(async (sqlite3)=>{
+  try{
+    let proxyJs = installOpfsVfs.defaultProxyUri;
+    if(sqlite3.scriptInfo.sqlite3Dir){
+      installOpfsVfs.defaultProxyUri =
+        sqlite3.scriptInfo.sqlite3Dir + proxyJs;
+      //sqlite3.config.warn("installOpfsVfs.defaultProxyUri =",installOpfsVfs.defaultProxyUri);
+    }
+    return installOpfsVfs().catch((e)=>{
+      sqlite3.config.warn("Ignoring inability to install OPFS sqlite3_vfs:",e.message);
+    });
+  }catch(e){
+    sqlite3.config.error("installOpfsVfs() exception:",e);
+    return Promise.reject(e);
+  }
+});
+}/*sqlite3ApiBootstrap.initializers.push()*/);
+//#else
+/* The OPFS VFS parts are elided from builds targeting node.js. */
+//#endif target=node
diff --git a/ext/wasm/api/sqlite3-vtab-helper.c-pp.js b/ext/wasm/api/sqlite3-vtab-helper.c-pp.js
new file mode 100644
index 0000000000000000000000000000000000000000..d78fbdbf376544798a6a10010cf16d6f1702d1a8
--- /dev/null
+++ b/ext/wasm/api/sqlite3-vtab-helper.c-pp.js
@@ -0,0 +1,427 @@
+/*
+** 2022-11-30
+**
+** The author disclaims copyright to this source code.  In place of a
+** legal notice, here is a blessing:
+**
+** *   May you do good and not evil.
+** *   May you find forgiveness for yourself and forgive others.
+** *   May you share freely, never taking more than you give.
+*/
+
+/**
+   This file installs sqlite3.vtab, a namespace of helpers for use in
+   the creation of JavaScript implementations virtual tables. If built
+   without virtual table support then this function does nothing.
+*/
+'use strict';
+globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
+  if( !sqlite3.wasm.exports.sqlite3_declare_vtab ){
+    return;
+  }
+  const wasm = sqlite3.wasm, capi = sqlite3.capi, toss = sqlite3.util.toss3;
+  const vtab = Object.create(null);
+  sqlite3.vtab = vtab;
+
+  const sii = capi.sqlite3_index_info;
+  /**
+     If n is >=0 and less than this.$nConstraint, this function
+     returns either a WASM pointer to the 0-based nth entry of
+     this.$aConstraint (if passed a truthy 2nd argument) or an
+     sqlite3_index_info.sqlite3_index_constraint object wrapping that
+     address (if passed a falsy value or no 2nd argument). Returns a
+     falsy value if n is out of range.
+  */
+  sii.prototype.nthConstraint = function(n, asPtr=false){
+    if(n<0 || n>=this.$nConstraint) return false;
+    const ptr = this.$aConstraint + (
+      sii.sqlite3_index_constraint.structInfo.sizeof * n
+    );
+    return asPtr ? ptr : new sii.sqlite3_index_constraint(ptr);
+  };
+
+  /**
+     Works identically to nthConstraint() but returns state from
+     this.$aConstraintUsage, so returns an
+     sqlite3_index_info.sqlite3_index_constraint_usage instance
+     if passed no 2nd argument or a falsy 2nd argument.
+  */
+  sii.prototype.nthConstraintUsage = function(n, asPtr=false){
+    if(n<0 || n>=this.$nConstraint) return false;
+    const ptr = this.$aConstraintUsage + (
+      sii.sqlite3_index_constraint_usage.structInfo.sizeof * n
+    );
+    return asPtr ? ptr : new sii.sqlite3_index_constraint_usage(ptr);
+  };
+
+  /**
+     If n is >=0 and less than this.$nOrderBy, this function
+     returns either a WASM pointer to the 0-based nth entry of
+     this.$aOrderBy (if passed a truthy 2nd argument) or an
+     sqlite3_index_info.sqlite3_index_orderby object wrapping that
+     address (if passed a falsy value or no 2nd argument). Returns a
+     falsy value if n is out of range.
+  */
+  sii.prototype.nthOrderBy = function(n, asPtr=false){
+    if(n<0 || n>=this.$nOrderBy) return false;
+    const ptr = this.$aOrderBy + (
+      sii.sqlite3_index_orderby.structInfo.sizeof * n
+    );
+    return asPtr ? ptr : new sii.sqlite3_index_orderby(ptr);
+  };
+
+  /**
+     Internal factory function for xVtab and xCursor impls.
+  */
+  const __xWrapFactory = function(methodName,StructType){
+    return function(ptr,removeMapping=false){
+      if(0===arguments.length) ptr = new StructType;
+      if(ptr instanceof StructType){
+        //T.assert(!this.has(ptr.pointer));
+        this.set(ptr.pointer, ptr);
+        return ptr;
+      }else if(!wasm.isPtr(ptr)){
+        sqlite3.SQLite3Error.toss("Invalid argument to",methodName+"()");
+      }
+      let rc = this.get(ptr);
+      if(removeMapping) this.delete(ptr);
+      return rc;
+    }.bind(new Map);
+  };
+
+  /**
+     A factory function which implements a simple lifetime manager for
+     mappings between C struct pointers and their JS-level wrappers.
+     The first argument must be the logical name of the manager
+     (e.g. 'xVtab' or 'xCursor'), which is only used for error
+     reporting. The second must be the capi.XYZ struct-type value,
+     e.g. capi.sqlite3_vtab or capi.sqlite3_vtab_cursor.
+
+     Returns an object with 4 methods: create(), get(), unget(), and
+     dispose(), plus a StructType member with the value of the 2nd
+     argument. The methods are documented in the body of this
+     function.
+  */
+  const StructPtrMapper = function(name, StructType){
+    const __xWrap = __xWrapFactory(name,StructType);
+    /**
+       This object houses a small API for managing mappings of (`T*`)
+       to StructType<T> objects, specifically within the lifetime
+       requirements of sqlite3_module methods.
+    */
+    return Object.assign(Object.create(null),{
+      /** The StructType object for this object's API. */
+      StructType,
+      /**
+         Creates a new StructType object, writes its `pointer`
+         value to the given output pointer, and returns that
+         object. Its intended usage depends on StructType:
+
+         sqlite3_vtab: to be called from sqlite3_module::xConnect()
+         or xCreate() implementations.
+
+         sqlite3_vtab_cursor: to be called from xOpen().
+
+         This will throw if allocation of the StructType instance
+         fails or if ppOut is not a pointer-type value.
+      */
+      create: (ppOut)=>{
+        const rc = __xWrap();
+        wasm.pokePtr(ppOut, rc.pointer);
+        return rc;
+      },
+      /**
+         Returns the StructType object previously mapped to the
+         given pointer using create(). Its intended usage depends
+         on StructType:
+
+         sqlite3_vtab: to be called from sqlite3_module methods which
+         take a (sqlite3_vtab*) pointer _except_ for
+         xDestroy()/xDisconnect(), in which case unget() or dispose().
+
+         sqlite3_vtab_cursor: to be called from any sqlite3_module methods
+         which take a `sqlite3_vtab_cursor*` argument except xClose(),
+         in which case use unget() or dispose().
+
+         Rule to remember: _never_ call dispose() on an instance
+         returned by this function.
+      */
+      get: (pCObj)=>__xWrap(pCObj),
+      /**
+         Identical to get() but also disconnects the mapping between the
+         given pointer and the returned StructType object, such that
+         future calls to this function or get() with the same pointer
+         will return the undefined value. Its intended usage depends
+         on StructType:
+
+         sqlite3_vtab: to be called from sqlite3_module::xDisconnect() or
+         xDestroy() implementations or in error handling of a failed
+         xCreate() or xConnect().
+
+         sqlite3_vtab_cursor: to be called from xClose() or during
+         cleanup in a failed xOpen().
+
+         Calling this method obligates the caller to call dispose() on
+         the returned object when they're done with it.
+      */
+      unget: (pCObj)=>__xWrap(pCObj,true),
+      /**
+         Works like unget() plus it calls dispose() on the
+         StructType object.
+      */
+      dispose: (pCObj)=>{
+        const o = __xWrap(pCObj,true);
+        if(o) o.dispose();
+      }
+    });
+  };
+
+  /**
+     A lifetime-management object for mapping `sqlite3_vtab*`
+     instances in sqlite3_module methods to capi.sqlite3_vtab
+     objects.
+
+     The API docs are in the API-internal StructPtrMapper().
+  */
+  vtab.xVtab = StructPtrMapper('xVtab', capi.sqlite3_vtab);
+
+  /**
+     A lifetime-management object for mapping `sqlite3_vtab_cursor*`
+     instances in sqlite3_module methods to capi.sqlite3_vtab_cursor
+     objects.
+
+     The API docs are in the API-internal StructPtrMapper().
+  */
+  vtab.xCursor = StructPtrMapper('xCursor', capi.sqlite3_vtab_cursor);
+
+  /**
+     Convenience form of creating an sqlite3_index_info wrapper,
+     intended for use in xBestIndex implementations. Note that the
+     caller is expected to call dispose() on the returned object
+     before returning. Though not _strictly_ required, as that object
+     does not own the pIdxInfo memory, it is nonetheless good form.
+  */
+  vtab.xIndexInfo = (pIdxInfo)=>new capi.sqlite3_index_info(pIdxInfo);
+
+  /**
+     Given an sqlite3_module method name and error object, this
+     function returns sqlite3.capi.SQLITE_NOMEM if (e instanceof
+     sqlite3.WasmAllocError), else it returns its second argument. Its
+     intended usage is in the methods of a sqlite3_vfs or
+     sqlite3_module:
+
+     ```
+     try{
+      let rc = ...
+      return rc;
+     }catch(e){
+       return sqlite3.vtab.xError(
+                'xColumn', e, sqlite3.capi.SQLITE_XYZ);
+       // where SQLITE_XYZ is some call-appropriate result code.
+     }
+     ```
+
+     If no 3rd argument is provided, its default depends on
+     the error type:
+
+     - An sqlite3.WasmAllocError always resolves to capi.SQLITE_NOMEM.
+
+     - If err is an SQLite3Error then its `resultCode` property
+       is used.
+
+     - If all else fails, capi.SQLITE_ERROR is used.
+
+     If xError.errorReporter is a function, it is called in
+     order to report the error, else the error is not reported.
+     If that function throws, that exception is ignored.
+  */
+  vtab.xError = function f(methodName, err, defaultRc){
+    if(f.errorReporter instanceof Function){
+      try{f.errorReporter("sqlite3_module::"+methodName+"(): "+err.message);}
+      catch(e){/*ignored*/}
+    }
+    let rc;
+    if(err instanceof sqlite3.WasmAllocError) rc = capi.SQLITE_NOMEM;
+    else if(arguments.length>2) rc = defaultRc;
+    else if(err instanceof sqlite3.SQLite3Error) rc = err.resultCode;
+    return rc || capi.SQLITE_ERROR;
+  };
+  vtab.xError.errorReporter = 1 ? console.error.bind(console) : false;
+
+  /**
+     A helper for sqlite3_vtab::xRowid() and xUpdate()
+     implementations. It must be passed the final argument to one of
+     those methods (an output pointer to an int64 row ID) and the
+     value to store at the output pointer's address. Returns the same
+     as wasm.poke() and will throw if the 1st or 2nd arguments
+     are invalid for that function.
+
+     Example xRowid impl:
+
+     ```
+     const xRowid = (pCursor, ppRowid64)=>{
+       const c = vtab.xCursor(pCursor);
+       vtab.xRowid(ppRowid64, c.myRowId);
+       return 0;
+     };
+     ```
+  */
+  vtab.xRowid = (ppRowid64, value)=>wasm.poke(ppRowid64, value, 'i64');
+
+  /**
+     A helper to initialize and set up an sqlite3_module object for
+     later installation into individual databases using
+     sqlite3_create_module(). Requires an object with the following
+     properties:
+
+     - `methods`: an object containing a mapping of properties with
+       the C-side names of the sqlite3_module methods, e.g. xCreate,
+       xBestIndex, etc., to JS implementations for those functions.
+       Certain special-case handling is performed, as described below.
+
+     - `catchExceptions` (default=false): if truthy, the given methods
+       are not mapped as-is, but are instead wrapped inside wrappers
+       which translate exceptions into result codes of SQLITE_ERROR or
+       SQLITE_NOMEM, depending on whether the exception is an
+       sqlite3.WasmAllocError. In the case of the xConnect and xCreate
+       methods, the exception handler also sets the output error
+       string to the exception's error string.
+
+     - OPTIONAL `struct`: a sqlite3.capi.sqlite3_module() instance. If
+       not set, one will be created automatically. If the current
+       "this" is-a sqlite3_module then it is unconditionally used in
+       place of `struct`.
+
+     - OPTIONAL `iVersion`: if set, it must be an integer value and it
+       gets assigned to the `$iVersion` member of the struct object.
+       If it's _not_ set, and the passed-in `struct` object's `$iVersion`
+       is 0 (the default) then this function attempts to define a value
+       for that property based on the list of methods it has.
+
+     If `catchExceptions` is false, it is up to the client to ensure
+     that no exceptions escape the methods, as doing so would move
+     them through the C API, leading to undefined
+     behavior. (vtab.xError() is intended to assist in reporting
+     such exceptions.)
+
+     Certain methods may refer to the same implementation. To simplify
+     the definition of such methods:
+
+     - If `methods.xConnect` is `true` then the value of
+       `methods.xCreate` is used in its place, and vice versa. sqlite
+       treats xConnect/xCreate functions specially if they are exactly
+       the same function (same pointer value).
+
+     - If `methods.xDisconnect` is true then the value of
+       `methods.xDestroy` is used in its place, and vice versa.
+
+     This is to facilitate creation of those methods inline in the
+     passed-in object without requiring the client to explicitly get a
+     reference to one of them in order to assign it to the other
+     one.
+
+     The `catchExceptions`-installed handlers will account for
+     identical references to the above functions and will install the
+     same wrapper function for both.
+
+     The given methods are expected to return integer values, as
+     expected by the C API. If `catchExceptions` is truthy, the return
+     value of the wrapped function will be used as-is and will be
+     translated to 0 if the function returns a falsy value (e.g. if it
+     does not have an explicit return). If `catchExceptions` is _not_
+     active, the method implementations must explicitly return integer
+     values.
+
+     Throws on error. On success, returns the sqlite3_module object
+     (`this` or `opt.struct` or a new sqlite3_module instance,
+     depending on how it's called).
+  */
+  vtab.setupModule = function(opt){
+    let createdMod = false;
+    const mod = (this instanceof capi.sqlite3_module)
+          ? this : (opt.struct || (createdMod = new capi.sqlite3_module()));
+    try{
+      const methods = opt.methods || toss("Missing 'methods' object.");
+      for(const e of Object.entries({
+        // -----^ ==> [k,v] triggers a broken code transformation in
+        // some versions of the emsdk toolchain.
+        xConnect: 'xCreate', xDisconnect: 'xDestroy'
+      })){
+        // Remap X=true to X=Y for certain X/Y combinations
+        const k = e[0], v = e[1];
+        if(true === methods[k]) methods[k] = methods[v];
+        else if(true === methods[v]) methods[v] = methods[k];
+      }
+      if(opt.catchExceptions){
+        const fwrap = function(methodName, func){
+          if(['xConnect','xCreate'].indexOf(methodName) >= 0){
+            return function(pDb, pAux, argc, argv, ppVtab, pzErr){
+              try{return func(...arguments) || 0}
+              catch(e){
+                if(!(e instanceof sqlite3.WasmAllocError)){
+                  wasm.dealloc(wasm.peekPtr(pzErr));
+                  wasm.pokePtr(pzErr, wasm.allocCString(e.message));
+                }
+                return vtab.xError(methodName, e);
+              }
+            };
+          }else{
+            return function(...args){
+              try{return func(...args) || 0}
+              catch(e){
+                return vtab.xError(methodName, e);
+              }
+            };
+          }
+        };
+        const mnames = [
+          'xCreate', 'xConnect', 'xBestIndex', 'xDisconnect',
+          'xDestroy', 'xOpen', 'xClose', 'xFilter', 'xNext',
+          'xEof', 'xColumn', 'xRowid', 'xUpdate',
+          'xBegin', 'xSync', 'xCommit', 'xRollback',
+          'xFindFunction', 'xRename', 'xSavepoint', 'xRelease',
+          'xRollbackTo', 'xShadowName'
+        ];
+        const remethods = Object.create(null);
+        for(const k of mnames){
+          const m = methods[k];
+          if(!(m instanceof Function)) continue;
+          else if('xConnect'===k && methods.xCreate===m){
+            remethods[k] = methods.xCreate;
+          }else if('xCreate'===k && methods.xConnect===m){
+            remethods[k] = methods.xConnect;
+          }else{
+            remethods[k] = fwrap(k, m);
+          }
+        }
+        mod.installMethods(remethods, false);
+      }else{
+        // No automatic exception handling. Trust the client
+        // to not throw.
+        mod.installMethods(
+          methods, !!opt.applyArgcCheck/*undocumented option*/
+        );
+      }
+      if(0===mod.$iVersion){
+        let v;
+        if('number'===typeof opt.iVersion) v = opt.iVersion;
+        else if(mod.$xShadowName) v = 3;
+        else if(mod.$xSavePoint || mod.$xRelease || mod.$xRollbackTo) v = 2;
+        else v = 1;
+        mod.$iVersion = v;
+      }
+    }catch(e){
+      if(createdMod) createdMod.dispose();
+      throw e;
+    }
+    return mod;
+  }/*setupModule()*/;
+
+  /**
+     Equivalent to calling vtab.setupModule() with this sqlite3_module
+     object as the call's `this`.
+  */
+  capi.sqlite3_module.prototype.setupModule = function(opt){
+    return vtab.setupModule.call(this, opt);
+  };
+}/*sqlite3ApiBootstrap.initializers.push()*/);
diff --git a/ext/wasm/api/sqlite3-wasm.c b/ext/wasm/api/sqlite3-wasm.c
new file mode 100644
index 0000000000000000000000000000000000000000..c5dd495e54a66ca189d409dfb90172654df8a170
--- /dev/null
+++ b/ext/wasm/api/sqlite3-wasm.c
@@ -0,0 +1,1950 @@
+/*
+** This file requires access to sqlite3.c static state in order to
+** implement certain WASM-specific features, and thus directly
+** includes that file. Unlike the rest of sqlite3.c, this file
+** requires compiling with -std=c99 (or equivalent, or a later C
+** version) because it makes use of features not available in C89.
+**
+** At its simplest, to build sqlite3.wasm either place this file
+** in the same directory as sqlite3.c/h before compilation or use the
+** -I/path flag to tell the compiler where to find both of those
+** files, then compile this file. For example:
+**
+** emcc -o sqlite3.wasm ... -I/path/to/sqlite3-c-and-h sqlite3-wasm.c
+*/
+#define SQLITE_WASM
+#ifdef SQLITE_WASM_ENABLE_C_TESTS
+#  undef SQLITE_WASM_ENABLE_C_TESTS
+#  define SQLITE_WASM_ENABLE_C_TESTS 1
+/*
+** Code blocked off by SQLITE_WASM_ENABLE_C_TESTS is intended solely
+** for use in unit/regression testing. They may be safely omitted from
+** client-side builds. The main unit test script, tester1.js, will
+** skip related tests if it doesn't find the corresponding functions
+** in the WASM exports.
+*/
+#else
+#  define SQLITE_WASM_ENABLE_C_TESTS 0
+#endif
+
+/*
+** Threading and file locking: JS is single-threaded. Each Worker
+** thread is a separate instance of the JS engine so can never access
+** the same db handle as another thread, thus multi-threading support
+** is unnecessary in the library. Because the filesystems are virtual
+** and local to a given wasm runtime instance, two Workers can never
+** access the same db file at once, with the exception of OPFS.
+**
+** Summary: except for the case of OPFS, which supports locking using
+** its own API, threading and file locking support are unnecessary in
+** the wasm build.
+*/
+
+/*
+** Undefine any SQLITE_... config flags which we specifically do not
+** want defined. Please keep these alphabetized.
+*/
+#undef SQLITE_OMIT_DESERIALIZE
+#undef SQLITE_OMIT_MEMORYDB
+
+/*
+** Define any SQLITE_... config defaults we want if they aren't
+** overridden by the builder. Please keep these alphabetized.
+*/
+
+/**********************************************************************/
+/* SQLITE_D... */
+#ifndef SQLITE_DEFAULT_CACHE_SIZE
+/*
+** The OPFS impls benefit tremendously from an increased cache size
+** when working on large workloads, e.g. speedtest1 --size 50 or
+** higher. On smaller workloads, e.g. speedtest1 --size 25, they
+** clearly benefit from having 4mb of cache, but not as much as a
+** larger cache benefits the larger workloads. Speed differences
+** between 2x and nearly 3x have been measured with ample page cache.
+*/
+# define SQLITE_DEFAULT_CACHE_SIZE -16384
+#endif
+#if !defined(SQLITE_DEFAULT_PAGE_SIZE)
+/*
+** OPFS performance is improved by approx. 12% with a page size of 8kb
+** instead of 4kb. Performance with 16kb is equivalent to 8kb.
+**
+** Performance difference of kvvfs with a page size of 8kb compared to
+** 4kb, as measured by speedtest1 --size 4, is indeterminate:
+** measurements are all over the place either way and not
+** significantly different.
+*/
+# define SQLITE_DEFAULT_PAGE_SIZE 8192
+#endif
+#ifndef SQLITE_DEFAULT_UNIX_VFS
+# define SQLITE_DEFAULT_UNIX_VFS "unix-none"
+#endif
+#undef SQLITE_DQS
+#define SQLITE_DQS 0
+
+/**********************************************************************/
+/* SQLITE_ENABLE_... */
+/*
+** Unconditionally enable API_ARMOR in the WASM build. It ensures that
+** public APIs behave predictable in the face of passing illegal NULLs
+** or ranges which might otherwise invoke undefined behavior.
+*/
+#undef SQLITE_ENABLE_API_ARMOR
+#define SQLITE_ENABLE_API_ARMOR 1
+
+/**********************************************************************/
+/* SQLITE_O... */
+#undef SQLITE_OMIT_DEPRECATED
+#define SQLITE_OMIT_DEPRECATED 1
+#undef SQLITE_OMIT_LOAD_EXTENSION
+#define SQLITE_OMIT_LOAD_EXTENSION 1
+#undef SQLITE_OMIT_SHARED_CACHE
+#define SQLITE_OMIT_SHARED_CACHE 1
+#undef SQLITE_OMIT_UTF16
+#define SQLITE_OMIT_UTF16 1
+#undef SQLITE_OS_KV_OPTIONAL
+#define SQLITE_OS_KV_OPTIONAL 1
+
+/**********************************************************************/
+/* SQLITE_S... */
+#ifndef SQLITE_STRICT_SUBTYPE
+# define SQLITE_STRICT_SUBTYPE 1
+#endif
+
+/**********************************************************************/
+/* SQLITE_T... */
+#ifndef SQLITE_TEMP_STORE
+# define SQLITE_TEMP_STORE 2
+#endif
+#ifndef SQLITE_THREADSAFE
+# define SQLITE_THREADSAFE 0
+#endif
+
+/**********************************************************************/
+/* SQLITE_USE_... */
+#ifndef SQLITE_USE_URI
+#  define SQLITE_USE_URI 1
+#endif
+
+#ifdef SQLITE_WASM_EXTRA_INIT
+#  define SQLITE_EXTRA_INIT sqlite3_wasm_extra_init
+#endif
+
+/*
+** If SQLITE_WASM_BARE_BONES is defined, undefine most of the ENABLE
+** macros.
+*/
+#ifdef SQLITE_WASM_BARE_BONES
+#  undef  SQLITE_ENABLE_DBPAGE_VTAB
+#  undef  SQLITE_ENABLE_DBSTAT_VTAB
+#  undef  SQLITE_ENABLE_EXPLAIN_COMMENTS
+#  undef  SQLITE_ENABLE_FTS5
+#  undef  SQLITE_ENABLE_OFFSET_SQL_FUNC
+#  undef  SQLITE_ENABLE_PREUPDATE_HOOK
+#  undef  SQLITE_ENABLE_RTREE
+#  undef  SQLITE_ENABLE_SESSION
+#  undef  SQLITE_ENABLE_STMTVTAB
+#  undef  SQLITE_OMIT_AUTHORIZATION
+#  define SQLITE_OMIT_AUTHORIZATION
+#  undef  SQLITE_OMIT_GET_TABLE
+#  define SQLITE_OMIT_GET_TABLE
+#  undef  SQLITE_OMIT_INCRBLOB
+#  define SQLITE_OMIT_INCRBLOB
+#  undef  SQLITE_OMIT_INTROSPECTION_PRAGMAS
+#  define SQLITE_OMIT_INTROSPECTION_PRAGMAS
+#  undef  SQLITE_OMIT_JSON
+#  define SQLITE_OMIT_JSON
+#  undef  SQLITE_OMIT_PROGRESS_CALLBACK
+#  define SQLITE_OMIT_PROGRESS_CALLBACK
+#  undef  SQLITE_OMIT_WAL
+#  define SQLITE_OMIT_WAL
+/*
+  The following OMITs do not work with the standard amalgamation, so
+  require a custom build:
+
+  fossil clean -x
+  ./configure
+  OPTS='...' make -e sqlite3
+
+  where ... has a -D... for each of the following OMIT flags:
+
+#  undef SQLITE_OMIT_EXPLAIN
+#  define SQLITE_OMIT_EXPLAIN
+
+#  undef SQLITE_OMIT_TRIGGER
+#  define SQLITE_OMIT_TRIGGER
+
+#  undef SQLITE_OMIT_VIRTUALTABLE
+#  define SQLITE_OMIT_VIRTUALTABLE
+
+#  undef SQLITE_OMIT_WINDOWFUNC
+#  define SQLITE_OMIT_WINDOWFUNC
+
+  As of this writing (2024-07-25), such a build fails in various ways
+  for as-yet-unknown reasons.
+*/
+#endif
+
+#if !defined(SQLITE_OMIT_VIRTUALTABLE) && !defined(SQLITE_WASM_BARE_BONES)
+#  define SQLITE_WASM_HAS_VTAB 1
+#else
+#  define SQLITE_WASM_HAS_VTAB 0
+#endif
+
+#include <assert.h>
+
+/*
+** SQLITE_WASM_EXPORT is functionally identical to EMSCRIPTEN_KEEPALIVE
+** but is not Emscripten-specific. It explicitly marks functions for
+** export into the target wasm file without requiring explicit listing
+** of those functions in Emscripten's -sEXPORTED_FUNCTIONS=... list
+** (or equivalent in other build platforms). Any function with neither
+** this attribute nor which is listed as an explicit export will not
+** be exported from the wasm file (but may still be used internally
+** within the wasm file).
+**
+** The functions in this file (sqlite3-wasm.c) which require exporting
+** are marked with this flag. They may also be added to any explicit
+** build-time export list but need not be. All of these APIs are
+** intended for use only within the project's own JS/WASM code, and
+** not by client code, so an argument can be made for reducing their
+** visibility by not including them in any build-time export lists.
+**
+** 2022-09-11: it's not yet _proven_ that this approach works in
+** non-Emscripten builds. If not, such builds will need to export
+** those using the --export=... wasm-ld flag (or equivalent). As of
+** this writing we are tied to Emscripten for various reasons
+** and cannot test the library with other build environments.
+*/
+#define SQLITE_WASM_EXPORT __attribute__((used,visibility("default")))
+// See also:
+//__attribute__((export_name("theExportedName"), used, visibility("default")))
+
+/*
+** Which sqlite3.c we're using needs to be configurable to enable
+** building against a custom copy, e.g. the SEE variant. Note that we
+** #include the .c file, rather than the header, so that the WASM
+** extensions have access to private API internals.
+**
+** The caveat here is that custom variants need to account for
+** exporting any necessary symbols (e.g. sqlite3_activate_see()).  We
+** cannot export them from here using SQLITE_WASM_EXPORT because that
+** attribute (apparently) has to be part of the function definition.
+*/
+#ifndef SQLITE_C
+# define SQLITE_C sqlite3.c /* yes, .c instead of .h. */
+#endif
+#define INC__STRINGIFY_(f) #f
+#define INC__STRINGIFY(f) INC__STRINGIFY_(f)
+#include INC__STRINGIFY(SQLITE_C)
+#undef INC__STRINGIFY_
+#undef INC__STRINGIFY
+#undef SQLITE_C
+
+#if 0
+/*
+** An EXPERIMENT in implementing a stack-based allocator analog to
+** Emscripten's stackSave(), stackAlloc(), stackRestore().
+** Unfortunately, this cannot work together with Emscripten because
+** Emscripten defines its own native one and we'd stomp on each
+** other's memory. Other than that complication, basic tests show it
+** to work just fine.
+**
+** Another option is to malloc() a chunk of our own and call that our
+** "stack".
+*/
+SQLITE_WASM_EXPORT void * sqlite3__wasm_stack_end(void){
+  extern void __heap_base
+    /* see https://stackoverflow.com/questions/10038964 */;
+  return &__heap_base;
+}
+SQLITE_WASM_EXPORT void * sqlite3__wasm_stack_begin(void){
+  extern void __data_end;
+  return &__data_end;
+}
+static void * pWasmStackPtr = 0;
+SQLITE_WASM_EXPORT void * sqlite3__wasm_stack_ptr(void){
+  if(!pWasmStackPtr) pWasmStackPtr = sqlite3__wasm_stack_end();
+  return pWasmStackPtr;
+}
+SQLITE_WASM_EXPORT void sqlite3__wasm_stack_restore(void * p){
+  pWasmStackPtr = p;
+}
+SQLITE_WASM_EXPORT void * sqlite3__wasm_stack_alloc(int n){
+  if(n<=0) return 0;
+  n = (n + 7) & ~7 /* align to 8-byte boundary */;
+  unsigned char * const p = (unsigned char *)sqlite3__wasm_stack_ptr();
+  unsigned const char * const b = (unsigned const char *)sqlite3__wasm_stack_begin();
+  if(b + n >= p || b + n < b/*overflow*/) return 0;
+  return pWasmStackPtr = p - n;
+}
+#endif /* stack allocator experiment */
+
+/*
+** State for the "pseudo-stack" allocator implemented in
+** sqlite3__wasm_pstack_xyz(). In order to avoid colliding with
+** Emscripten-controled stack space, it carves out a bit of stack
+** memory to use for that purpose. This memory ends up in the
+** WASM-managed memory, such that routines which manipulate the wasm
+** heap can also be used to manipulate this memory.
+**
+** This particular allocator is intended for small allocations such as
+** storage for output pointers. We cannot reasonably size it large
+** enough for general-purpose string conversions because some of our
+** tests use input files (strings) of 16MB+.
+*/
+static unsigned char PStack_mem[512 * 8] = {0};
+static struct {
+  unsigned const char * const pBegin;/* Start (inclusive) of memory */
+  unsigned const char * const pEnd;  /* One-after-the-end of memory */
+  unsigned char * pPos;              /* Current stack pointer */
+} PStack = {
+  &PStack_mem[0],
+  &PStack_mem[0] + sizeof(PStack_mem),
+  &PStack_mem[0] + sizeof(PStack_mem)
+};
+/*
+** Returns the current pstack position.
+*/
+SQLITE_WASM_EXPORT void * sqlite3__wasm_pstack_ptr(void){
+  return PStack.pPos;
+}
+/*
+** Sets the pstack position poitner to p. Results are undefined if the
+** given value did not come from sqlite3__wasm_pstack_ptr().
+*/
+SQLITE_WASM_EXPORT void sqlite3__wasm_pstack_restore(unsigned char * p){
+  assert(p>=PStack.pBegin && p<=PStack.pEnd && p>=PStack.pPos);
+  assert(0==((unsigned long long)p & 0x7));
+  if(p>=PStack.pBegin && p<=PStack.pEnd /*&& p>=PStack.pPos*/){
+    PStack.pPos = p;
+  }
+}
+/*
+** Allocate and zero out n bytes from the pstack. Returns a pointer to
+** the memory on success, 0 on error (including a negative n value). n
+** is always adjusted to be a multiple of 8 and returned memory is
+** always zeroed out before returning (because this keeps the client
+** JS code from having to do so, and most uses of the pstack will
+** call for doing so).
+*/
+SQLITE_WASM_EXPORT void * sqlite3__wasm_pstack_alloc(int n){
+  if( n<=0 ) return 0;
+  //if( n & 0x7 ) n += 8 - (n & 0x7) /* align to 8-byte boundary */;
+  n = (n + 7) & ~7 /* align to 8-byte boundary */;
+  if( PStack.pBegin + n > PStack.pPos /*not enough space left*/
+      || PStack.pBegin + n <= PStack.pBegin /*overflow*/ ) return 0;
+  memset((PStack.pPos = PStack.pPos - n), 0, (unsigned int)n);
+  return PStack.pPos;
+}
+/*
+** Return the number of bytes left which can be
+** sqlite3__wasm_pstack_alloc()'d.
+*/
+SQLITE_WASM_EXPORT int sqlite3__wasm_pstack_remaining(void){
+  assert(PStack.pPos >= PStack.pBegin);
+  assert(PStack.pPos <= PStack.pEnd);
+  return (int)(PStack.pPos - PStack.pBegin);
+}
+
+/*
+** Return the total number of bytes available in the pstack, including
+** any space which is currently allocated. This value is a
+** compile-time constant.
+*/
+SQLITE_WASM_EXPORT int sqlite3__wasm_pstack_quota(void){
+  return (int)(PStack.pEnd - PStack.pBegin);
+}
+
+/*
+** This function is NOT part of the sqlite3 public API. It is strictly
+** for use by the sqlite project's own JS/WASM bindings.
+**
+** For purposes of certain hand-crafted C/Wasm function bindings, we
+** need a way of reporting errors which is consistent with the rest of
+** the C API, as opposed to throwing JS exceptions. To that end, this
+** internal-use-only function is a thin proxy around
+** sqlite3ErrorWithMessage(). The intent is that it only be used from
+** Wasm bindings such as sqlite3_prepare_v2/v3(), and definitely not
+** from client code.
+**
+** Returns err_code.
+*/
+SQLITE_WASM_EXPORT
+int sqlite3__wasm_db_error(sqlite3*db, int err_code, const char *zMsg){
+  if( db!=0 ){
+    if( 0!=zMsg ){
+      const int nMsg = sqlite3Strlen30(zMsg);
+      sqlite3_mutex_enter(sqlite3_db_mutex(db));
+      sqlite3ErrorWithMsg(db, err_code, "%.*s", nMsg, zMsg);
+      sqlite3_mutex_leave(sqlite3_db_mutex(db));
+    }else{
+      sqlite3ErrorWithMsg(db, err_code, NULL);
+    }
+  }
+  return err_code;
+}
+
+#if SQLITE_WASM_ENABLE_C_TESTS
+struct WasmTestStruct {
+  int v4;
+  void * ppV;
+  const char * cstr;
+  int64_t v8;
+  void (*xFunc)(void*);
+};
+typedef struct WasmTestStruct WasmTestStruct;
+SQLITE_WASM_EXPORT
+void sqlite3__wasm_test_struct(WasmTestStruct * s){
+  if(s){
+    s->v4 *= 2;
+    s->v8 = s->v4 * 2;
+    s->ppV = s;
+    s->cstr = __FILE__;
+    if(s->xFunc) s->xFunc(s);
+  }
+  return;
+}
+#endif /* SQLITE_WASM_ENABLE_C_TESTS */
+
+/*
+** This function is NOT part of the sqlite3 public API. It is strictly
+** for use by the sqlite project's own JS/WASM bindings. Unlike the
+** rest of the sqlite3 API, this part requires C99 for snprintf() and
+** variadic macros.
+**
+** Returns a string containing a JSON-format "enum" of C-level
+** constants and struct-related metadata intended to be imported into
+** the JS environment. The JSON is initialized the first time this
+** function is called and that result is reused for all future calls.
+**
+** If this function returns NULL then it means that the internal
+** buffer is not large enough for the generated JSON and needs to be
+** increased. In debug builds that will trigger an assert().
+*/
+SQLITE_WASM_EXPORT
+const char * sqlite3__wasm_enum_json(void){
+  static char aBuffer[1024 * 20] = {0} /* where the JSON goes */;
+  int n = 0, nChildren = 0, nStruct = 0
+    /* output counters for figuring out where commas go */;
+  char * zPos = &aBuffer[1] /* skip first byte for now to help protect
+                            ** against a small race condition */;
+  char const * const zEnd = &aBuffer[0] + sizeof(aBuffer) /* one-past-the-end */;
+  if(aBuffer[0]) return aBuffer;
+  /* Leave aBuffer[0] at 0 until the end to help guard against a tiny
+  ** race condition. If this is called twice concurrently, they might
+  ** end up both writing to aBuffer, but they'll both write the same
+  ** thing, so that's okay. If we set byte 0 up front then the 2nd
+  ** instance might return and use the string before the 1st instance
+  ** is done filling it. */
+
+/* Core output macros... */
+#define lenCheck assert(zPos < zEnd - 128 \
+  && "sqlite3__wasm_enum_json() buffer is too small."); \
+  if( zPos >= zEnd - 128 ) return 0
+#define outf(format,...) \
+  zPos += snprintf(zPos, ((size_t)(zEnd - zPos)), format, __VA_ARGS__); \
+  lenCheck
+#define out(TXT) outf("%s",TXT)
+#define CloseBrace(LEVEL) \
+  assert(LEVEL<5); memset(zPos, '}', LEVEL); zPos+=LEVEL; lenCheck
+
+/* Macros for emitting maps of integer- and string-type macros to
+** their values. */
+#define DefGroup(KEY) n = 0; \
+  outf("%s\"" #KEY "\": {",(nChildren++ ? "," : ""));
+#define DefInt(KEY)                                     \
+  outf("%s\"%s\": %d", (n++ ? ", " : ""), #KEY, (int)KEY)
+#define DefStr(KEY)                                     \
+  outf("%s\"%s\": \"%s\"", (n++ ? ", " : ""), #KEY, KEY)
+#define _DefGroup CloseBrace(1)
+
+  /* The following groups are sorted alphabetic by group name. */
+  DefGroup(access){
+    DefInt(SQLITE_ACCESS_EXISTS);
+    DefInt(SQLITE_ACCESS_READWRITE);
+    DefInt(SQLITE_ACCESS_READ)/*docs say this is unused*/;
+  } _DefGroup;
+
+  DefGroup(authorizer){
+    DefInt(SQLITE_DENY);
+    DefInt(SQLITE_IGNORE);
+    DefInt(SQLITE_CREATE_INDEX);
+    DefInt(SQLITE_CREATE_TABLE);
+    DefInt(SQLITE_CREATE_TEMP_INDEX);
+    DefInt(SQLITE_CREATE_TEMP_TABLE);
+    DefInt(SQLITE_CREATE_TEMP_TRIGGER);
+    DefInt(SQLITE_CREATE_TEMP_VIEW);
+    DefInt(SQLITE_CREATE_TRIGGER);
+    DefInt(SQLITE_CREATE_VIEW);
+    DefInt(SQLITE_DELETE);
+    DefInt(SQLITE_DROP_INDEX);
+    DefInt(SQLITE_DROP_TABLE);
+    DefInt(SQLITE_DROP_TEMP_INDEX);
+    DefInt(SQLITE_DROP_TEMP_TABLE);
+    DefInt(SQLITE_DROP_TEMP_TRIGGER);
+    DefInt(SQLITE_DROP_TEMP_VIEW);
+    DefInt(SQLITE_DROP_TRIGGER);
+    DefInt(SQLITE_DROP_VIEW);
+    DefInt(SQLITE_INSERT);
+    DefInt(SQLITE_PRAGMA);
+    DefInt(SQLITE_READ);
+    DefInt(SQLITE_SELECT);
+    DefInt(SQLITE_TRANSACTION);
+    DefInt(SQLITE_UPDATE);
+    DefInt(SQLITE_ATTACH);
+    DefInt(SQLITE_DETACH);
+    DefInt(SQLITE_ALTER_TABLE);
+    DefInt(SQLITE_REINDEX);
+    DefInt(SQLITE_ANALYZE);
+    DefInt(SQLITE_CREATE_VTABLE);
+    DefInt(SQLITE_DROP_VTABLE);
+    DefInt(SQLITE_FUNCTION);
+    DefInt(SQLITE_SAVEPOINT);
+    //DefInt(SQLITE_COPY) /* No longer used */;
+    DefInt(SQLITE_RECURSIVE);
+  } _DefGroup;
+
+  DefGroup(blobFinalizers) {
+    /* SQLITE_STATIC/TRANSIENT need to be handled explicitly as
+    ** integers to avoid casting-related warnings. */
+    out("\"SQLITE_STATIC\":0, \"SQLITE_TRANSIENT\":-1");
+    outf(",\"SQLITE_WASM_DEALLOC\": %lld",
+         (sqlite3_int64)(sqlite3_free));
+  } _DefGroup;
+
+  DefGroup(changeset){
+#ifdef SQLITE_CHANGESETSTART_INVERT
+    DefInt(SQLITE_CHANGESETSTART_INVERT);
+    DefInt(SQLITE_CHANGESETAPPLY_NOSAVEPOINT);
+    DefInt(SQLITE_CHANGESETAPPLY_INVERT);
+    DefInt(SQLITE_CHANGESETAPPLY_IGNORENOOP);
+
+    DefInt(SQLITE_CHANGESET_DATA);
+    DefInt(SQLITE_CHANGESET_NOTFOUND);
+    DefInt(SQLITE_CHANGESET_CONFLICT);
+    DefInt(SQLITE_CHANGESET_CONSTRAINT);
+    DefInt(SQLITE_CHANGESET_FOREIGN_KEY);
+
+    DefInt(SQLITE_CHANGESET_OMIT);
+    DefInt(SQLITE_CHANGESET_REPLACE);
+    DefInt(SQLITE_CHANGESET_ABORT);
+#endif
+  } _DefGroup;
+
+  DefGroup(config){
+    DefInt(SQLITE_CONFIG_SINGLETHREAD);
+    DefInt(SQLITE_CONFIG_MULTITHREAD);
+    DefInt(SQLITE_CONFIG_SERIALIZED);
+    DefInt(SQLITE_CONFIG_MALLOC);
+    DefInt(SQLITE_CONFIG_GETMALLOC);
+    DefInt(SQLITE_CONFIG_SCRATCH);
+    DefInt(SQLITE_CONFIG_PAGECACHE);
+    DefInt(SQLITE_CONFIG_HEAP);
+    DefInt(SQLITE_CONFIG_MEMSTATUS);
+    DefInt(SQLITE_CONFIG_MUTEX);
+    DefInt(SQLITE_CONFIG_GETMUTEX);
+/* previously SQLITE_CONFIG_CHUNKALLOC 12 which is now unused. */
+    DefInt(SQLITE_CONFIG_LOOKASIDE);
+    DefInt(SQLITE_CONFIG_PCACHE);
+    DefInt(SQLITE_CONFIG_GETPCACHE);
+    DefInt(SQLITE_CONFIG_LOG);
+    DefInt(SQLITE_CONFIG_URI);
+    DefInt(SQLITE_CONFIG_PCACHE2);
+    DefInt(SQLITE_CONFIG_GETPCACHE2);
+    DefInt(SQLITE_CONFIG_COVERING_INDEX_SCAN);
+    DefInt(SQLITE_CONFIG_SQLLOG);
+    DefInt(SQLITE_CONFIG_MMAP_SIZE);
+    DefInt(SQLITE_CONFIG_WIN32_HEAPSIZE);
+    DefInt(SQLITE_CONFIG_PCACHE_HDRSZ);
+    DefInt(SQLITE_CONFIG_PMASZ);
+    DefInt(SQLITE_CONFIG_STMTJRNL_SPILL);
+    DefInt(SQLITE_CONFIG_SMALL_MALLOC);
+    DefInt(SQLITE_CONFIG_SORTERREF_SIZE);
+    DefInt(SQLITE_CONFIG_MEMDB_MAXSIZE);
+    /* maintenance note: we specifically do not include
+       SQLITE_CONFIG_ROWID_IN_VIEW here, on the grounds that
+       it's only for legacy support and no apps written with
+       this API require that. */
+  } _DefGroup;
+
+  DefGroup(dataTypes) {
+    DefInt(SQLITE_INTEGER);
+    DefInt(SQLITE_FLOAT);
+    DefInt(SQLITE_TEXT);
+    DefInt(SQLITE_BLOB);
+    DefInt(SQLITE_NULL);
+  } _DefGroup;
+
+  DefGroup(dbConfig){
+    DefInt(SQLITE_DBCONFIG_MAINDBNAME);
+    DefInt(SQLITE_DBCONFIG_LOOKASIDE);
+    DefInt(SQLITE_DBCONFIG_ENABLE_FKEY);
+    DefInt(SQLITE_DBCONFIG_ENABLE_TRIGGER);
+    DefInt(SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION);
+    DefInt(SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE);
+    DefInt(SQLITE_DBCONFIG_ENABLE_QPSG);
+    DefInt(SQLITE_DBCONFIG_TRIGGER_EQP);
+    DefInt(SQLITE_DBCONFIG_RESET_DATABASE);
+    DefInt(SQLITE_DBCONFIG_DEFENSIVE);
+    DefInt(SQLITE_DBCONFIG_WRITABLE_SCHEMA);
+    DefInt(SQLITE_DBCONFIG_LEGACY_ALTER_TABLE);
+    DefInt(SQLITE_DBCONFIG_DQS_DML);
+    DefInt(SQLITE_DBCONFIG_DQS_DDL);
+    DefInt(SQLITE_DBCONFIG_ENABLE_VIEW);
+    DefInt(SQLITE_DBCONFIG_LEGACY_FILE_FORMAT);
+    DefInt(SQLITE_DBCONFIG_TRUSTED_SCHEMA);
+    DefInt(SQLITE_DBCONFIG_STMT_SCANSTATUS);
+    DefInt(SQLITE_DBCONFIG_REVERSE_SCANORDER);
+    DefInt(SQLITE_DBCONFIG_MAX);
+  } _DefGroup;
+
+  DefGroup(dbStatus){
+    DefInt(SQLITE_DBSTATUS_LOOKASIDE_USED);
+    DefInt(SQLITE_DBSTATUS_CACHE_USED);
+    DefInt(SQLITE_DBSTATUS_SCHEMA_USED);
+    DefInt(SQLITE_DBSTATUS_STMT_USED);
+    DefInt(SQLITE_DBSTATUS_LOOKASIDE_HIT);
+    DefInt(SQLITE_DBSTATUS_LOOKASIDE_MISS_SIZE);
+    DefInt(SQLITE_DBSTATUS_LOOKASIDE_MISS_FULL);
+    DefInt(SQLITE_DBSTATUS_CACHE_HIT);
+    DefInt(SQLITE_DBSTATUS_CACHE_MISS);
+    DefInt(SQLITE_DBSTATUS_CACHE_WRITE);
+    DefInt(SQLITE_DBSTATUS_DEFERRED_FKS);
+    DefInt(SQLITE_DBSTATUS_CACHE_USED_SHARED);
+    DefInt(SQLITE_DBSTATUS_CACHE_SPILL);
+    DefInt(SQLITE_DBSTATUS_MAX);
+  } _DefGroup;
+
+  DefGroup(encodings) {
+    /* Noting that the wasm binding only aims to support UTF-8. */
+    DefInt(SQLITE_UTF8);
+    DefInt(SQLITE_UTF16LE);
+    DefInt(SQLITE_UTF16BE);
+    DefInt(SQLITE_UTF16);
+    /*deprecated DefInt(SQLITE_ANY); */
+    DefInt(SQLITE_UTF16_ALIGNED);
+  } _DefGroup;
+
+  DefGroup(fcntl) {
+    DefInt(SQLITE_FCNTL_LOCKSTATE);
+    DefInt(SQLITE_FCNTL_GET_LOCKPROXYFILE);
+    DefInt(SQLITE_FCNTL_SET_LOCKPROXYFILE);
+    DefInt(SQLITE_FCNTL_LAST_ERRNO);
+    DefInt(SQLITE_FCNTL_SIZE_HINT);
+    DefInt(SQLITE_FCNTL_CHUNK_SIZE);
+    DefInt(SQLITE_FCNTL_FILE_POINTER);
+    DefInt(SQLITE_FCNTL_SYNC_OMITTED);
+    DefInt(SQLITE_FCNTL_WIN32_AV_RETRY);
+    DefInt(SQLITE_FCNTL_PERSIST_WAL);
+    DefInt(SQLITE_FCNTL_OVERWRITE);
+    DefInt(SQLITE_FCNTL_VFSNAME);
+    DefInt(SQLITE_FCNTL_POWERSAFE_OVERWRITE);
+    DefInt(SQLITE_FCNTL_PRAGMA);
+    DefInt(SQLITE_FCNTL_BUSYHANDLER);
+    DefInt(SQLITE_FCNTL_TEMPFILENAME);
+    DefInt(SQLITE_FCNTL_MMAP_SIZE);
+    DefInt(SQLITE_FCNTL_TRACE);
+    DefInt(SQLITE_FCNTL_HAS_MOVED);
+    DefInt(SQLITE_FCNTL_SYNC);
+    DefInt(SQLITE_FCNTL_COMMIT_PHASETWO);
+    DefInt(SQLITE_FCNTL_WIN32_SET_HANDLE);
+    DefInt(SQLITE_FCNTL_WAL_BLOCK);
+    DefInt(SQLITE_FCNTL_ZIPVFS);
+    DefInt(SQLITE_FCNTL_RBU);
+    DefInt(SQLITE_FCNTL_VFS_POINTER);
+    DefInt(SQLITE_FCNTL_JOURNAL_POINTER);
+    DefInt(SQLITE_FCNTL_WIN32_GET_HANDLE);
+    DefInt(SQLITE_FCNTL_PDB);
+    DefInt(SQLITE_FCNTL_BEGIN_ATOMIC_WRITE);
+    DefInt(SQLITE_FCNTL_COMMIT_ATOMIC_WRITE);
+    DefInt(SQLITE_FCNTL_ROLLBACK_ATOMIC_WRITE);
+    DefInt(SQLITE_FCNTL_LOCK_TIMEOUT);
+    DefInt(SQLITE_FCNTL_DATA_VERSION);
+    DefInt(SQLITE_FCNTL_SIZE_LIMIT);
+    DefInt(SQLITE_FCNTL_CKPT_DONE);
+    DefInt(SQLITE_FCNTL_RESERVE_BYTES);
+    DefInt(SQLITE_FCNTL_CKPT_START);
+    DefInt(SQLITE_FCNTL_EXTERNAL_READER);
+    DefInt(SQLITE_FCNTL_CKSM_FILE);
+    DefInt(SQLITE_FCNTL_RESET_CACHE);
+  } _DefGroup;
+
+  DefGroup(flock) {
+    DefInt(SQLITE_LOCK_NONE);
+    DefInt(SQLITE_LOCK_SHARED);
+    DefInt(SQLITE_LOCK_RESERVED);
+    DefInt(SQLITE_LOCK_PENDING);
+    DefInt(SQLITE_LOCK_EXCLUSIVE);
+  } _DefGroup;
+
+  DefGroup(ioCap) {
+    DefInt(SQLITE_IOCAP_ATOMIC);
+    DefInt(SQLITE_IOCAP_ATOMIC512);
+    DefInt(SQLITE_IOCAP_ATOMIC1K);
+    DefInt(SQLITE_IOCAP_ATOMIC2K);
+    DefInt(SQLITE_IOCAP_ATOMIC4K);
+    DefInt(SQLITE_IOCAP_ATOMIC8K);
+    DefInt(SQLITE_IOCAP_ATOMIC16K);
+    DefInt(SQLITE_IOCAP_ATOMIC32K);
+    DefInt(SQLITE_IOCAP_ATOMIC64K);
+    DefInt(SQLITE_IOCAP_SAFE_APPEND);
+    DefInt(SQLITE_IOCAP_SEQUENTIAL);
+    DefInt(SQLITE_IOCAP_UNDELETABLE_WHEN_OPEN);
+    DefInt(SQLITE_IOCAP_POWERSAFE_OVERWRITE);
+    DefInt(SQLITE_IOCAP_IMMUTABLE);
+    DefInt(SQLITE_IOCAP_BATCH_ATOMIC);
+  } _DefGroup;
+
+  DefGroup(limits) {
+    DefInt(SQLITE_MAX_ALLOCATION_SIZE);
+    DefInt(SQLITE_LIMIT_LENGTH);
+    DefInt(SQLITE_MAX_LENGTH);
+    DefInt(SQLITE_LIMIT_SQL_LENGTH);
+    DefInt(SQLITE_MAX_SQL_LENGTH);
+    DefInt(SQLITE_LIMIT_COLUMN);
+    DefInt(SQLITE_MAX_COLUMN);
+    DefInt(SQLITE_LIMIT_EXPR_DEPTH);
+    DefInt(SQLITE_MAX_EXPR_DEPTH);
+    DefInt(SQLITE_LIMIT_COMPOUND_SELECT);
+    DefInt(SQLITE_MAX_COMPOUND_SELECT);
+    DefInt(SQLITE_LIMIT_VDBE_OP);
+    DefInt(SQLITE_MAX_VDBE_OP);
+    DefInt(SQLITE_LIMIT_FUNCTION_ARG);
+    DefInt(SQLITE_MAX_FUNCTION_ARG);
+    DefInt(SQLITE_LIMIT_ATTACHED);
+    DefInt(SQLITE_MAX_ATTACHED);
+    DefInt(SQLITE_LIMIT_LIKE_PATTERN_LENGTH);
+    DefInt(SQLITE_MAX_LIKE_PATTERN_LENGTH);
+    DefInt(SQLITE_LIMIT_VARIABLE_NUMBER);
+    DefInt(SQLITE_MAX_VARIABLE_NUMBER);
+    DefInt(SQLITE_LIMIT_TRIGGER_DEPTH);
+    DefInt(SQLITE_MAX_TRIGGER_DEPTH);
+    DefInt(SQLITE_LIMIT_WORKER_THREADS);
+    DefInt(SQLITE_MAX_WORKER_THREADS);
+  } _DefGroup;
+
+  DefGroup(openFlags) {
+    /* Noting that not all of these will have any effect in
+    ** WASM-space. */
+    DefInt(SQLITE_OPEN_READONLY);
+    DefInt(SQLITE_OPEN_READWRITE);
+    DefInt(SQLITE_OPEN_CREATE);
+    DefInt(SQLITE_OPEN_URI);
+    DefInt(SQLITE_OPEN_MEMORY);
+    DefInt(SQLITE_OPEN_NOMUTEX);
+    DefInt(SQLITE_OPEN_FULLMUTEX);
+    DefInt(SQLITE_OPEN_SHAREDCACHE);
+    DefInt(SQLITE_OPEN_PRIVATECACHE);
+    DefInt(SQLITE_OPEN_EXRESCODE);
+    DefInt(SQLITE_OPEN_NOFOLLOW);
+    /* OPEN flags for use with VFSes... */
+    DefInt(SQLITE_OPEN_MAIN_DB);
+    DefInt(SQLITE_OPEN_MAIN_JOURNAL);
+    DefInt(SQLITE_OPEN_TEMP_DB);
+    DefInt(SQLITE_OPEN_TEMP_JOURNAL);
+    DefInt(SQLITE_OPEN_TRANSIENT_DB);
+    DefInt(SQLITE_OPEN_SUBJOURNAL);
+    DefInt(SQLITE_OPEN_SUPER_JOURNAL);
+    DefInt(SQLITE_OPEN_WAL);
+    DefInt(SQLITE_OPEN_DELETEONCLOSE);
+    DefInt(SQLITE_OPEN_EXCLUSIVE);
+  } _DefGroup;
+
+  DefGroup(prepareFlags) {
+    DefInt(SQLITE_PREPARE_PERSISTENT);
+    DefInt(SQLITE_PREPARE_NORMALIZE);
+    DefInt(SQLITE_PREPARE_NO_VTAB);
+  } _DefGroup;
+
+  DefGroup(resultCodes) {
+    DefInt(SQLITE_OK);
+    DefInt(SQLITE_ERROR);
+    DefInt(SQLITE_INTERNAL);
+    DefInt(SQLITE_PERM);
+    DefInt(SQLITE_ABORT);
+    DefInt(SQLITE_BUSY);
+    DefInt(SQLITE_LOCKED);
+    DefInt(SQLITE_NOMEM);
+    DefInt(SQLITE_READONLY);
+    DefInt(SQLITE_INTERRUPT);
+    DefInt(SQLITE_IOERR);
+    DefInt(SQLITE_CORRUPT);
+    DefInt(SQLITE_NOTFOUND);
+    DefInt(SQLITE_FULL);
+    DefInt(SQLITE_CANTOPEN);
+    DefInt(SQLITE_PROTOCOL);
+    DefInt(SQLITE_EMPTY);
+    DefInt(SQLITE_SCHEMA);
+    DefInt(SQLITE_TOOBIG);
+    DefInt(SQLITE_CONSTRAINT);
+    DefInt(SQLITE_MISMATCH);
+    DefInt(SQLITE_MISUSE);
+    DefInt(SQLITE_NOLFS);
+    DefInt(SQLITE_AUTH);
+    DefInt(SQLITE_FORMAT);
+    DefInt(SQLITE_RANGE);
+    DefInt(SQLITE_NOTADB);
+    DefInt(SQLITE_NOTICE);
+    DefInt(SQLITE_WARNING);
+    DefInt(SQLITE_ROW);
+    DefInt(SQLITE_DONE);
+    // Extended Result Codes
+    DefInt(SQLITE_ERROR_MISSING_COLLSEQ);
+    DefInt(SQLITE_ERROR_RETRY);
+    DefInt(SQLITE_ERROR_SNAPSHOT);
+    DefInt(SQLITE_IOERR_READ);
+    DefInt(SQLITE_IOERR_SHORT_READ);
+    DefInt(SQLITE_IOERR_WRITE);
+    DefInt(SQLITE_IOERR_FSYNC);
+    DefInt(SQLITE_IOERR_DIR_FSYNC);
+    DefInt(SQLITE_IOERR_TRUNCATE);
+    DefInt(SQLITE_IOERR_FSTAT);
+    DefInt(SQLITE_IOERR_UNLOCK);
+    DefInt(SQLITE_IOERR_RDLOCK);
+    DefInt(SQLITE_IOERR_DELETE);
+    DefInt(SQLITE_IOERR_BLOCKED);
+    DefInt(SQLITE_IOERR_NOMEM);
+    DefInt(SQLITE_IOERR_ACCESS);
+    DefInt(SQLITE_IOERR_CHECKRESERVEDLOCK);
+    DefInt(SQLITE_IOERR_LOCK);
+    DefInt(SQLITE_IOERR_CLOSE);
+    DefInt(SQLITE_IOERR_DIR_CLOSE);
+    DefInt(SQLITE_IOERR_SHMOPEN);
+    DefInt(SQLITE_IOERR_SHMSIZE);
+    DefInt(SQLITE_IOERR_SHMLOCK);
+    DefInt(SQLITE_IOERR_SHMMAP);
+    DefInt(SQLITE_IOERR_SEEK);
+    DefInt(SQLITE_IOERR_DELETE_NOENT);
+    DefInt(SQLITE_IOERR_MMAP);
+    DefInt(SQLITE_IOERR_GETTEMPPATH);
+    DefInt(SQLITE_IOERR_CONVPATH);
+    DefInt(SQLITE_IOERR_VNODE);
+    DefInt(SQLITE_IOERR_AUTH);
+    DefInt(SQLITE_IOERR_BEGIN_ATOMIC);
+    DefInt(SQLITE_IOERR_COMMIT_ATOMIC);
+    DefInt(SQLITE_IOERR_ROLLBACK_ATOMIC);
+    DefInt(SQLITE_IOERR_DATA);
+    DefInt(SQLITE_IOERR_CORRUPTFS);
+    DefInt(SQLITE_LOCKED_SHAREDCACHE);
+    DefInt(SQLITE_LOCKED_VTAB);
+    DefInt(SQLITE_BUSY_RECOVERY);
+    DefInt(SQLITE_BUSY_SNAPSHOT);
+    DefInt(SQLITE_BUSY_TIMEOUT);
+    DefInt(SQLITE_CANTOPEN_NOTEMPDIR);
+    DefInt(SQLITE_CANTOPEN_ISDIR);
+    DefInt(SQLITE_CANTOPEN_FULLPATH);
+    DefInt(SQLITE_CANTOPEN_CONVPATH);
+    //DefInt(SQLITE_CANTOPEN_DIRTYWAL)/*docs say not used*/;
+    DefInt(SQLITE_CANTOPEN_SYMLINK);
+    DefInt(SQLITE_CORRUPT_VTAB);
+    DefInt(SQLITE_CORRUPT_SEQUENCE);
+    DefInt(SQLITE_CORRUPT_INDEX);
+    DefInt(SQLITE_READONLY_RECOVERY);
+    DefInt(SQLITE_READONLY_CANTLOCK);
+    DefInt(SQLITE_READONLY_ROLLBACK);
+    DefInt(SQLITE_READONLY_DBMOVED);
+    DefInt(SQLITE_READONLY_CANTINIT);
+    DefInt(SQLITE_READONLY_DIRECTORY);
+    DefInt(SQLITE_ABORT_ROLLBACK);
+    DefInt(SQLITE_CONSTRAINT_CHECK);
+    DefInt(SQLITE_CONSTRAINT_COMMITHOOK);
+    DefInt(SQLITE_CONSTRAINT_FOREIGNKEY);
+    DefInt(SQLITE_CONSTRAINT_FUNCTION);
+    DefInt(SQLITE_CONSTRAINT_NOTNULL);
+    DefInt(SQLITE_CONSTRAINT_PRIMARYKEY);
+    DefInt(SQLITE_CONSTRAINT_TRIGGER);
+    DefInt(SQLITE_CONSTRAINT_UNIQUE);
+    DefInt(SQLITE_CONSTRAINT_VTAB);
+    DefInt(SQLITE_CONSTRAINT_ROWID);
+    DefInt(SQLITE_CONSTRAINT_PINNED);
+    DefInt(SQLITE_CONSTRAINT_DATATYPE);
+    DefInt(SQLITE_NOTICE_RECOVER_WAL);
+    DefInt(SQLITE_NOTICE_RECOVER_ROLLBACK);
+    DefInt(SQLITE_WARNING_AUTOINDEX);
+    DefInt(SQLITE_AUTH_USER);
+    DefInt(SQLITE_OK_LOAD_PERMANENTLY);
+    //DefInt(SQLITE_OK_SYMLINK) /* internal use only */;
+  } _DefGroup;
+
+  DefGroup(serialize){
+    DefInt(SQLITE_SERIALIZE_NOCOPY);
+    DefInt(SQLITE_DESERIALIZE_FREEONCLOSE);
+    DefInt(SQLITE_DESERIALIZE_READONLY);
+    DefInt(SQLITE_DESERIALIZE_RESIZEABLE);
+  } _DefGroup;
+
+  DefGroup(session){
+#ifdef SQLITE_SESSION_CONFIG_STRMSIZE
+    DefInt(SQLITE_SESSION_CONFIG_STRMSIZE);
+    DefInt(SQLITE_SESSION_OBJCONFIG_SIZE);
+#endif
+  } _DefGroup;
+
+  DefGroup(sqlite3Status){
+    DefInt(SQLITE_STATUS_MEMORY_USED);
+    DefInt(SQLITE_STATUS_PAGECACHE_USED);
+    DefInt(SQLITE_STATUS_PAGECACHE_OVERFLOW);
+    //DefInt(SQLITE_STATUS_SCRATCH_USED) /* NOT USED */;
+    //DefInt(SQLITE_STATUS_SCRATCH_OVERFLOW) /* NOT USED */;
+    DefInt(SQLITE_STATUS_MALLOC_SIZE);
+    DefInt(SQLITE_STATUS_PARSER_STACK);
+    DefInt(SQLITE_STATUS_PAGECACHE_SIZE);
+    //DefInt(SQLITE_STATUS_SCRATCH_SIZE) /* NOT USED */;
+    DefInt(SQLITE_STATUS_MALLOC_COUNT);
+  } _DefGroup;
+
+  DefGroup(stmtStatus){
+    DefInt(SQLITE_STMTSTATUS_FULLSCAN_STEP);
+    DefInt(SQLITE_STMTSTATUS_SORT);
+    DefInt(SQLITE_STMTSTATUS_AUTOINDEX);
+    DefInt(SQLITE_STMTSTATUS_VM_STEP);
+    DefInt(SQLITE_STMTSTATUS_REPREPARE);
+    DefInt(SQLITE_STMTSTATUS_RUN);
+    DefInt(SQLITE_STMTSTATUS_FILTER_MISS);
+    DefInt(SQLITE_STMTSTATUS_FILTER_HIT);
+    DefInt(SQLITE_STMTSTATUS_MEMUSED);
+  } _DefGroup;
+
+  DefGroup(syncFlags) {
+    DefInt(SQLITE_SYNC_NORMAL);
+    DefInt(SQLITE_SYNC_FULL);
+    DefInt(SQLITE_SYNC_DATAONLY);
+  } _DefGroup;
+
+  DefGroup(trace) {
+    DefInt(SQLITE_TRACE_STMT);
+    DefInt(SQLITE_TRACE_PROFILE);
+    DefInt(SQLITE_TRACE_ROW);
+    DefInt(SQLITE_TRACE_CLOSE);
+  } _DefGroup;
+
+  DefGroup(txnState){
+    DefInt(SQLITE_TXN_NONE);
+    DefInt(SQLITE_TXN_READ);
+    DefInt(SQLITE_TXN_WRITE);
+  } _DefGroup;
+
+  DefGroup(udfFlags) {
+    DefInt(SQLITE_DETERMINISTIC);
+    DefInt(SQLITE_DIRECTONLY);
+    DefInt(SQLITE_INNOCUOUS);
+    DefInt(SQLITE_SUBTYPE);
+    DefInt(SQLITE_RESULT_SUBTYPE);
+  } _DefGroup;
+
+  DefGroup(version) {
+    DefInt(SQLITE_VERSION_NUMBER);
+    DefStr(SQLITE_VERSION);
+    DefStr(SQLITE_SOURCE_ID);
+  } _DefGroup;
+
+  DefGroup(vtab) {
+#if SQLITE_WASM_HAS_VTAB
+    DefInt(SQLITE_INDEX_SCAN_UNIQUE);
+    DefInt(SQLITE_INDEX_CONSTRAINT_EQ);
+    DefInt(SQLITE_INDEX_CONSTRAINT_GT);
+    DefInt(SQLITE_INDEX_CONSTRAINT_LE);
+    DefInt(SQLITE_INDEX_CONSTRAINT_LT);
+    DefInt(SQLITE_INDEX_CONSTRAINT_GE);
+    DefInt(SQLITE_INDEX_CONSTRAINT_MATCH);
+    DefInt(SQLITE_INDEX_CONSTRAINT_LIKE);
+    DefInt(SQLITE_INDEX_CONSTRAINT_GLOB);
+    DefInt(SQLITE_INDEX_CONSTRAINT_REGEXP);
+    DefInt(SQLITE_INDEX_CONSTRAINT_NE);
+    DefInt(SQLITE_INDEX_CONSTRAINT_ISNOT);
+    DefInt(SQLITE_INDEX_CONSTRAINT_ISNOTNULL);
+    DefInt(SQLITE_INDEX_CONSTRAINT_ISNULL);
+    DefInt(SQLITE_INDEX_CONSTRAINT_IS);
+    DefInt(SQLITE_INDEX_CONSTRAINT_LIMIT);
+    DefInt(SQLITE_INDEX_CONSTRAINT_OFFSET);
+    DefInt(SQLITE_INDEX_CONSTRAINT_FUNCTION);
+    DefInt(SQLITE_VTAB_CONSTRAINT_SUPPORT);
+    DefInt(SQLITE_VTAB_INNOCUOUS);
+    DefInt(SQLITE_VTAB_DIRECTONLY);
+    DefInt(SQLITE_VTAB_USES_ALL_SCHEMAS);
+    DefInt(SQLITE_ROLLBACK);
+    //DefInt(SQLITE_IGNORE); // Also used by sqlite3_authorizer() callback
+    DefInt(SQLITE_FAIL);
+    //DefInt(SQLITE_ABORT); // Also an error code
+    DefInt(SQLITE_REPLACE);
+#endif /*SQLITE_WASM_HAS_VTAB*/
+  } _DefGroup;
+
+#undef DefGroup
+#undef DefStr
+#undef DefInt
+#undef _DefGroup
+
+  /*
+  ** Emit an array of "StructBinder" struct descripions, which look
+  ** like:
+  **
+  ** {
+  **   "name": "MyStruct",
+  **   "sizeof": 16,
+  **   "members": {
+  **     "member1": {"offset": 0,"sizeof": 4,"signature": "i"},
+  **     "member2": {"offset": 4,"sizeof": 4,"signature": "p"},
+  **     "member3": {"offset": 8,"sizeof": 8,"signature": "j"}
+  **   }
+  ** }
+  **
+  ** Detailed documentation for those bits are in the docs for the
+  ** Jaccwabyt JS-side component.
+  */
+
+  /** Macros for emitting StructBinder description. */
+#define StructBinder__(TYPE)                 \
+  n = 0;                                     \
+  outf("%s{", (nStruct++ ? ", " : ""));      \
+  out("\"name\": \"" # TYPE "\",");          \
+  outf("\"sizeof\": %d", (int)sizeof(TYPE)); \
+  out(",\"members\": {");
+#define StructBinder_(T) StructBinder__(T)
+  /** ^^^ indirection needed to expand CurrentStruct */
+#define StructBinder StructBinder_(CurrentStruct)
+#define _StructBinder CloseBrace(2)
+#define M(MEMBER,SIG)                                         \
+  outf("%s\"%s\": "                                           \
+       "{\"offset\":%d,\"sizeof\": %d,\"signature\":\"%s\"}", \
+       (n++ ? ", " : ""), #MEMBER,                            \
+       (int)offsetof(CurrentStruct,MEMBER),                   \
+       (int)sizeof(((CurrentStruct*)0)->MEMBER),              \
+       SIG)
+
+  nStruct = 0;
+  out(", \"structs\": ["); {
+
+#define CurrentStruct sqlite3_vfs
+    StructBinder {
+      M(iVersion,          "i");
+      M(szOsFile,          "i");
+      M(mxPathname,        "i");
+      M(pNext,             "p");
+      M(zName,             "s");
+      M(pAppData,          "p");
+      M(xOpen,             "i(pppip)");
+      M(xDelete,           "i(ppi)");
+      M(xAccess,           "i(ppip)");
+      M(xFullPathname,     "i(ppip)");
+      M(xDlOpen,           "p(pp)");
+      M(xDlError,          "p(pip)");
+      M(xDlSym,            "p()");
+      M(xDlClose,          "v(pp)");
+      M(xRandomness,       "i(pip)");
+      M(xSleep,            "i(pi)");
+      M(xCurrentTime,      "i(pp)");
+      M(xGetLastError,     "i(pip)");
+      M(xCurrentTimeInt64, "i(pp)");
+      M(xSetSystemCall,    "i(ppp)");
+      M(xGetSystemCall,    "p(pp)");
+      M(xNextSystemCall,   "p(pp)");
+    } _StructBinder;
+#undef CurrentStruct
+
+#define CurrentStruct sqlite3_io_methods
+    StructBinder {
+      M(iVersion,               "i");
+      M(xClose,                 "i(p)");
+      M(xRead,                  "i(ppij)");
+      M(xWrite,                 "i(ppij)");
+      M(xTruncate,              "i(pj)");
+      M(xSync,                  "i(pi)");
+      M(xFileSize,              "i(pp)");
+      M(xLock,                  "i(pi)");
+      M(xUnlock,                "i(pi)");
+      M(xCheckReservedLock,     "i(pp)");
+      M(xFileControl,           "i(pip)");
+      M(xSectorSize,            "i(p)");
+      M(xDeviceCharacteristics, "i(p)");
+      M(xShmMap,                "i(piiip)");
+      M(xShmLock,               "i(piii)");
+      M(xShmBarrier,            "v(p)");
+      M(xShmUnmap,              "i(pi)");
+      M(xFetch,                 "i(pjip)");
+      M(xUnfetch,               "i(pjp)");
+    } _StructBinder;
+#undef CurrentStruct
+
+#define CurrentStruct sqlite3_file
+    StructBinder {
+      M(pMethods, "p");
+    } _StructBinder;
+#undef CurrentStruct
+
+#define CurrentStruct sqlite3_kvvfs_methods
+    StructBinder {
+      M(xRead,    "i(sspi)");
+      M(xWrite,   "i(sss)");
+      M(xDelete,  "i(ss)");
+      M(nKeySize, "i");
+    } _StructBinder;
+#undef CurrentStruct
+
+
+#if SQLITE_WASM_HAS_VTAB
+#define CurrentStruct sqlite3_vtab
+    StructBinder {
+      M(pModule, "p");
+      M(nRef,    "i");
+      M(zErrMsg, "p");
+    } _StructBinder;
+#undef CurrentStruct
+
+#define CurrentStruct sqlite3_vtab_cursor
+    StructBinder {
+      M(pVtab, "p");
+    } _StructBinder;
+#undef CurrentStruct
+
+#define CurrentStruct sqlite3_module
+    StructBinder {
+      M(iVersion,       "i");
+      M(xCreate,        "i(ppippp)");
+      M(xConnect,       "i(ppippp)");
+      M(xBestIndex,     "i(pp)");
+      M(xDisconnect,    "i(p)");
+      M(xDestroy,       "i(p)");
+      M(xOpen,          "i(pp)");
+      M(xClose,         "i(p)");
+      M(xFilter,        "i(pisip)");
+      M(xNext,          "i(p)");
+      M(xEof,           "i(p)");
+      M(xColumn,        "i(ppi)");
+      M(xRowid,         "i(pp)");
+      M(xUpdate,        "i(pipp)");
+      M(xBegin,         "i(p)");
+      M(xSync,          "i(p)");
+      M(xCommit,        "i(p)");
+      M(xRollback,      "i(p)");
+      M(xFindFunction,  "i(pispp)");
+      M(xRename,        "i(ps)");
+      // ^^^ v1. v2+ follows...
+      M(xSavepoint,     "i(pi)");
+      M(xRelease,       "i(pi)");
+      M(xRollbackTo,    "i(pi)");
+      // ^^^ v2. v3+ follows...
+      M(xShadowName,    "i(s)");
+    } _StructBinder;
+#undef CurrentStruct
+
+    /**
+     ** Workaround: in order to map the various inner structs from
+     ** sqlite3_index_info, we have to uplift those into constructs we
+     ** can access by type name. These structs _must_ match their
+     ** in-sqlite3_index_info counterparts byte for byte.
+    */
+    typedef struct {
+      int iColumn;
+      unsigned char op;
+      unsigned char usable;
+      int iTermOffset;
+    } sqlite3_index_constraint;
+    typedef struct {
+      int iColumn;
+      unsigned char desc;
+    } sqlite3_index_orderby;
+    typedef struct {
+      int argvIndex;
+      unsigned char omit;
+    } sqlite3_index_constraint_usage;
+    { /* Validate that the above struct sizeof()s match
+      ** expectations. We could improve upon this by
+      ** checking the offsetof() for each member. */
+      const sqlite3_index_info siiCheck;
+#define IndexSzCheck(T,M)           \
+      (sizeof(T) == sizeof(*siiCheck.M))
+      if(!IndexSzCheck(sqlite3_index_constraint,aConstraint)
+         || !IndexSzCheck(sqlite3_index_orderby,aOrderBy)
+         || !IndexSzCheck(sqlite3_index_constraint_usage,aConstraintUsage)){
+        assert(!"sizeof mismatch in sqlite3_index_... struct(s)");
+        return 0;
+      }
+#undef IndexSzCheck
+    }
+
+#define CurrentStruct sqlite3_index_constraint
+    StructBinder {
+      M(iColumn,        "i");
+      M(op,             "C");
+      M(usable,         "C");
+      M(iTermOffset,    "i");
+    } _StructBinder;
+#undef CurrentStruct
+
+#define CurrentStruct sqlite3_index_orderby
+    StructBinder {
+      M(iColumn,   "i");
+      M(desc,      "C");
+    } _StructBinder;
+#undef CurrentStruct
+
+#define CurrentStruct sqlite3_index_constraint_usage
+    StructBinder {
+      M(argvIndex,  "i");
+      M(omit,       "C");
+    } _StructBinder;
+#undef CurrentStruct
+
+#define CurrentStruct sqlite3_index_info
+    StructBinder {
+      M(nConstraint,        "i");
+      M(aConstraint,        "p");
+      M(nOrderBy,           "i");
+      M(aOrderBy,           "p");
+      M(aConstraintUsage,   "p");
+      M(idxNum,             "i");
+      M(idxStr,             "p");
+      M(needToFreeIdxStr,   "i");
+      M(orderByConsumed,    "i");
+      M(estimatedCost,      "d");
+      M(estimatedRows,      "j");
+      M(idxFlags,           "i");
+      M(colUsed,            "j");
+    } _StructBinder;
+#undef CurrentStruct
+
+#endif /*SQLITE_WASM_HAS_VTAB*/
+
+#if SQLITE_WASM_ENABLE_C_TESTS
+#define CurrentStruct WasmTestStruct
+    StructBinder {
+      M(v4,    "i");
+      M(cstr,  "s");
+      M(ppV,   "p");
+      M(v8,    "j");
+      M(xFunc, "v(p)");
+    } _StructBinder;
+#undef CurrentStruct
+#endif /*SQLITE_WASM_ENABLE_C_TESTS*/
+
+  } out( "]"/*structs*/);
+
+  out("}"/*top-level object*/);
+  *zPos = 0;
+  aBuffer[0] = '{'/*end of the race-condition workaround*/;
+  return aBuffer;
+#undef StructBinder
+#undef StructBinder_
+#undef StructBinder__
+#undef M
+#undef _StructBinder
+#undef CloseBrace
+#undef out
+#undef outf
+#undef lenCheck
+}
+
+/*
+** This function is NOT part of the sqlite3 public API. It is strictly
+** for use by the sqlite project's own JS/WASM bindings.
+**
+** This function invokes the xDelete method of the given VFS (or the
+** default VFS if pVfs is NULL), passing on the given filename. If
+** zName is NULL, no default VFS is found, or it has no xDelete
+** method, SQLITE_MISUSE is returned, else the result of the xDelete()
+** call is returned.
+*/
+SQLITE_WASM_EXPORT
+int sqlite3__wasm_vfs_unlink(sqlite3_vfs *pVfs, const char *zName){
+  int rc = SQLITE_MISUSE /* ??? */;
+  if( 0==pVfs && 0!=zName ) pVfs = sqlite3_vfs_find(0);
+  if( zName && pVfs && pVfs->xDelete ){
+    rc = pVfs->xDelete(pVfs, zName, 1);
+  }
+  return rc;
+}
+
+/*
+** This function is NOT part of the sqlite3 public API. It is strictly
+** for use by the sqlite project's own JS/WASM bindings.
+**
+** Returns a pointer to the given DB's VFS for the given DB name,
+** defaulting to "main" if zDbName is 0. Returns 0 if no db with the
+** given name is open.
+*/
+SQLITE_WASM_EXPORT
+sqlite3_vfs * sqlite3__wasm_db_vfs(sqlite3 *pDb, const char *zDbName){
+  sqlite3_vfs * pVfs = 0;
+  sqlite3_file_control(pDb, zDbName ? zDbName : "main",
+                       SQLITE_FCNTL_VFS_POINTER, &pVfs);
+  return pVfs;
+}
+
+/*
+** This function is NOT part of the sqlite3 public API. It is strictly
+** for use by the sqlite project's own JS/WASM bindings.
+**
+** This function resets the given db pointer's database as described at
+**
+** https://sqlite.org/c3ref/c_dbconfig_defensive.html#sqlitedbconfigresetdatabase
+**
+** But beware: virtual tables destroyed that way do not have their
+** xDestroy() called, so will leak if they require that function for
+** proper cleanup.
+**
+** Returns 0 on success, an SQLITE_xxx code on error. Returns
+** SQLITE_MISUSE if pDb is NULL.
+*/
+SQLITE_WASM_EXPORT
+int sqlite3__wasm_db_reset(sqlite3 *pDb){
+  int rc = SQLITE_MISUSE;
+  if( pDb ){
+    sqlite3_table_column_metadata(pDb, "main", 0, 0, 0, 0, 0, 0, 0);
+    rc = sqlite3_db_config(pDb, SQLITE_DBCONFIG_RESET_DATABASE, 1, 0);
+    if( 0==rc ){
+      rc = sqlite3_exec(pDb, "VACUUM", 0, 0, 0);
+      sqlite3_db_config(pDb, SQLITE_DBCONFIG_RESET_DATABASE, 0, 0);
+    }
+  }
+  return rc;
+}
+
+/*
+** This function is NOT part of the sqlite3 public API. It is strictly
+** for use by the sqlite project's own JS/WASM bindings.
+**
+** Uses the given database's VFS xRead to stream the db file's
+** contents out to the given callback. The callback gets a single
+** chunk of size n (its 2nd argument) on each call and must return 0
+** on success, non-0 on error. This function returns 0 on success,
+** SQLITE_NOTFOUND if no db is open, or propagates any other non-0
+** code from the callback. Note that this is not thread-friendly: it
+** expects that it will be the only thread reading the db file and
+** takes no measures to ensure that is the case.
+**
+** This implementation appears to work fine, but
+** sqlite3__wasm_db_serialize() is arguably the better way to achieve
+** this.
+*/
+SQLITE_WASM_EXPORT
+int sqlite3__wasm_db_export_chunked( sqlite3* pDb,
+                                    int (*xCallback)(unsigned const char *zOut, int n) ){
+  sqlite3_int64 nSize = 0;
+  sqlite3_int64 nPos = 0;
+  sqlite3_file * pFile = 0;
+  unsigned char buf[1024 * 8];
+  int nBuf = (int)sizeof(buf);
+  int rc = pDb
+    ? sqlite3_file_control(pDb, "main",
+                           SQLITE_FCNTL_FILE_POINTER, &pFile)
+    : SQLITE_NOTFOUND;
+  if( rc ) return rc;
+  rc = pFile->pMethods->xFileSize(pFile, &nSize);
+  if( rc ) return rc;
+  if(nSize % nBuf){
+    /* DB size is not an even multiple of the buffer size. Reduce
+    ** buffer size so that we do not unduly inflate the db size
+    ** with zero-padding when exporting. */
+    if(0 == nSize % 4096) nBuf = 4096;
+    else if(0 == nSize % 2048) nBuf = 2048;
+    else if(0 == nSize % 1024) nBuf = 1024;
+    else nBuf = 512;
+  }
+  for( ; 0==rc && nPos<nSize; nPos += nBuf ){
+    rc = pFile->pMethods->xRead(pFile, buf, nBuf, nPos);
+    if( SQLITE_IOERR_SHORT_READ == rc ){
+      rc = (nPos + nBuf) < nSize ? rc : 0/*assume EOF*/;
+    }
+    if( 0==rc ) rc = xCallback(buf, nBuf);
+  }
+  return rc;
+}
+
+/*
+** This function is NOT part of the sqlite3 public API. It is strictly
+** for use by the sqlite project's own JS/WASM bindings.
+**
+** A proxy for sqlite3_serialize() which serializes the schema zSchema
+** of pDb, placing the serialized output in pOut and nOut. nOut may be
+** NULL. If zSchema is NULL then "main" is assumed. If pDb or pOut are
+** NULL then SQLITE_MISUSE is returned. If allocation of the
+** serialized copy fails, SQLITE_NOMEM is returned.  On success, 0 is
+** returned and `*pOut` will contain a pointer to the memory unless
+** mFlags includes SQLITE_SERIALIZE_NOCOPY and the database has no
+** contiguous memory representation, in which case `*pOut` will be
+** NULL but 0 will be returned.
+**
+** If `*pOut` is not NULL, the caller is responsible for passing it to
+** sqlite3_free() to free it.
+*/
+SQLITE_WASM_EXPORT
+int sqlite3__wasm_db_serialize( sqlite3 *pDb, const char *zSchema,
+                               unsigned char **pOut,
+                               sqlite3_int64 *nOut, unsigned int mFlags ){
+  unsigned char * z;
+  if( !pDb || !pOut ) return SQLITE_MISUSE;
+  if( nOut ) *nOut = 0;
+  z = sqlite3_serialize(pDb, zSchema ? zSchema : "main", nOut, mFlags);
+  if( z || (SQLITE_SERIALIZE_NOCOPY & mFlags) ){
+    *pOut = z;
+    return 0;
+  }else{
+    return SQLITE_NOMEM;
+  }
+}
+
+/*
+** This function is NOT part of the sqlite3 public API. It is strictly
+** for use by the sqlite project's own JS/WASM bindings.
+**
+** ACHTUNG: it was discovered on 2023-08-11 that, with SQLITE_DEBUG,
+** this function's out-of-scope use of the sqlite3_vfs/file/io_methods
+** APIs leads to triggering of assertions in the core library. Its use
+** is now deprecated and VFS-specific APIs for importing files need to
+** be found to replace it. sqlite3__wasm_posix_create_file() is
+** suitable for the "unix" family of VFSes.
+**
+** Creates a new file using the I/O API of the given VFS, containing
+** the given number of bytes of the given data. If the file exists, it
+** is truncated to the given length and populated with the given
+** data.
+**
+** This function exists so that we can implement the equivalent of
+** Emscripten's FS.createDataFile() in a VFS-agnostic way. This
+** functionality is intended for use in uploading database files.
+**
+** Not all VFSes support this functionality, e.g. the "kvvfs" does
+** not.
+**
+** If pVfs is NULL, sqlite3_vfs_find(0) is used.
+**
+** If zFile is NULL, pVfs is NULL (and sqlite3_vfs_find(0) returns
+** NULL), or nData is negative, SQLITE_MISUSE are returned.
+**
+** On success, it creates a new file with the given name, populated
+** with the fist nData bytes of pData. If pData is NULL, the file is
+** created and/or truncated to nData bytes.
+**
+** Whether or not directory components of zFilename are created
+** automatically or not is unspecified: that detail is left to the
+** VFS. The "opfs" VFS, for example, creates them.
+**
+** If an error happens while populating or truncating the file, the
+** target file will be deleted (if needed) if this function created
+** it. If this function did not create it, it is not deleted but may
+** be left in an undefined state.
+**
+** Returns 0 on success. On error, it returns a code described above
+** or propagates a code from one of the I/O methods.
+**
+** Design note: nData is an integer, instead of int64, for WASM
+** portability, so that the API can still work in builds where BigInt
+** support is disabled or unavailable.
+*/
+SQLITE_WASM_EXPORT
+int sqlite3__wasm_vfs_create_file( sqlite3_vfs *pVfs,
+                                  const char *zFilename,
+                                  const unsigned char * pData,
+                                  int nData ){
+  int rc;
+  sqlite3_file *pFile = 0;
+  sqlite3_io_methods const *pIo;
+  const int openFlags = SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE
+#if 0 && defined(SQLITE_DEBUG)
+    | SQLITE_OPEN_MAIN_JOURNAL
+    /* ^^^^ This is for testing a horrible workaround to avoid
+       triggering a specific assert() in os_unix.c:unixOpen(). Please
+       do not enable this in real builds. */
+#endif
+    ;
+  int flagsOut = 0;
+  int fileExisted = 0;
+  int doUnlock = 0;
+  const unsigned char *pPos = pData;
+  const int blockSize = 512
+    /* Because we are using pFile->pMethods->xWrite() for writing, and
+    ** it may have a buffer limit related to sqlite3's pager size, we
+    ** conservatively write in 512-byte blocks (smallest page
+    ** size). */;
+  //fprintf(stderr, "pVfs=%p, zFilename=%s, nData=%d\n", pVfs, zFilename, nData);
+  if( !pVfs ) pVfs = sqlite3_vfs_find(0);
+  if( !pVfs || !zFilename || nData<0 ) return SQLITE_MISUSE;
+  pVfs->xAccess(pVfs, zFilename, SQLITE_ACCESS_EXISTS, &fileExisted);
+  rc = sqlite3OsOpenMalloc(pVfs, zFilename, &pFile, openFlags, &flagsOut);
+#if 0
+# define RC fprintf(stderr,"create_file(%s,%s) @%d rc=%d\n", \
+                    pVfs->zName, zFilename, __LINE__, rc);
+#else
+# define RC
+#endif
+  RC;
+  if(rc) return rc;
+  pIo = pFile->pMethods;
+  if( pIo->xLock ) {
+    /* We need xLock() in order to accommodate the OPFS VFS, as it
+    ** obtains a writeable handle via the lock operation and releases
+    ** it in xUnlock(). If we don't do those here, we have to add code
+    ** to the VFS to account check whether it was locked before
+    ** xFileSize(), xTruncate(), and the like, and release the lock
+    ** only if it was unlocked when the op was started. */
+    rc = pIo->xLock(pFile, SQLITE_LOCK_EXCLUSIVE);
+    RC;
+    doUnlock = 0==rc;
+  }
+  if( 0==rc ){
+    rc = pIo->xTruncate(pFile, nData);
+    RC;
+  }
+  if( 0==rc && 0!=pData && nData>0 ){
+    while( 0==rc && nData>0 ){
+      const int n = nData>=blockSize ? blockSize : nData;
+      rc = pIo->xWrite(pFile, pPos, n, (sqlite3_int64)(pPos - pData));
+      RC;
+      nData -= n;
+      pPos += n;
+    }
+    if( 0==rc && nData>0 ){
+      assert( nData<blockSize );
+      rc = pIo->xWrite(pFile, pPos, nData,
+                       (sqlite3_int64)(pPos - pData));
+      RC;
+    }
+  }
+  if( pIo->xUnlock && doUnlock!=0 ){
+    pIo->xUnlock(pFile, SQLITE_LOCK_NONE);
+  }
+  pIo->xClose(pFile);
+  if( rc!=0 && 0==fileExisted ){
+    pVfs->xDelete(pVfs, zFilename, 1);
+  }
+  RC;
+#undef RC
+  return rc;
+}
+
+/**
+** This function is NOT part of the sqlite3 public API. It is strictly
+** for use by the sqlite project's own JS/WASM bindings.
+**
+** Creates or overwrites a file using the POSIX file API,
+** i.e. Emscripten's virtual filesystem. Creates or truncates
+** zFilename, appends pData bytes to it, and returns 0 on success or
+** SQLITE_IOERR on error.
+*/
+SQLITE_WASM_EXPORT
+int sqlite3__wasm_posix_create_file( const char *zFilename,
+                                    const unsigned char * pData,
+                                    int nData ){
+  int rc;
+  FILE * pFile = 0;
+  int fileExisted = 0;
+  size_t nWrote = 1;
+
+  if( !zFilename || nData<0 || (pData==0 && nData>0) ) return SQLITE_MISUSE;
+  pFile = fopen(zFilename, "w");
+  if( 0==pFile ) return SQLITE_IOERR;
+  if( nData>0 ){
+    nWrote = fwrite(pData, (size_t)nData, 1, pFile);
+  }
+  fclose(pFile);
+  return 1==nWrote ? 0 : SQLITE_IOERR;
+}
+
+/*
+** This function is NOT part of the sqlite3 public API. It is strictly
+** for use by the sqlite project's own JS/WASM bindings.
+**
+** Allocates sqlite3KvvfsMethods.nKeySize bytes from
+** sqlite3__wasm_pstack_alloc() and returns 0 if that allocation fails,
+** else it passes that string to kvstorageMakeKey() and returns a
+** NUL-terminated pointer to that string. It is up to the caller to
+** use sqlite3__wasm_pstack_restore() to free the returned pointer.
+*/
+SQLITE_WASM_EXPORT
+char * sqlite3__wasm_kvvfsMakeKeyOnPstack(const char *zClass,
+                                         const char *zKeyIn){
+  assert(sqlite3KvvfsMethods.nKeySize>24);
+  char *zKeyOut =
+    (char *)sqlite3__wasm_pstack_alloc(sqlite3KvvfsMethods.nKeySize);
+  if(zKeyOut){
+    kvstorageMakeKey(zClass, zKeyIn, zKeyOut);
+  }
+  return zKeyOut;
+}
+
+/*
+** This function is NOT part of the sqlite3 public API. It is strictly
+** for use by the sqlite project's own JS/WASM bindings.
+**
+** Returns the pointer to the singleton object which holds the kvvfs
+** I/O methods and associated state.
+*/
+SQLITE_WASM_EXPORT
+sqlite3_kvvfs_methods * sqlite3__wasm_kvvfs_methods(void){
+  return &sqlite3KvvfsMethods;
+}
+
+#if SQLITE_WASM_HAS_VTAB
+/*
+** This function is NOT part of the sqlite3 public API. It is strictly
+** for use by the sqlite project's own JS/WASM bindings.
+**
+** This is a proxy for the variadic sqlite3_vtab_config() which passes
+** its argument on, or not, to sqlite3_vtab_config(), depending on the
+** value of its 2nd argument. Returns the result of
+** sqlite3_vtab_config(), or SQLITE_MISUSE if the 2nd arg is not a
+** valid value.
+*/
+SQLITE_WASM_EXPORT
+int sqlite3__wasm_vtab_config(sqlite3 *pDb, int op, int arg){
+  switch(op){
+  case SQLITE_VTAB_DIRECTONLY:
+  case SQLITE_VTAB_INNOCUOUS:
+    return sqlite3_vtab_config(pDb, op);
+  case SQLITE_VTAB_CONSTRAINT_SUPPORT:
+    return sqlite3_vtab_config(pDb, op, arg);
+  default:
+    return SQLITE_MISUSE;
+  }
+}
+#endif /*SQLITE_WASM_HAS_VTAB*/
+
+/*
+** This function is NOT part of the sqlite3 public API. It is strictly
+** for use by the sqlite project's own JS/WASM bindings.
+**
+** Wrapper for the variants of sqlite3_db_config() which take
+** (int,int*) variadic args.
+*/
+SQLITE_WASM_EXPORT
+int sqlite3__wasm_db_config_ip(sqlite3 *pDb, int op, int arg1, int* pArg2){
+  switch(op){
+    case SQLITE_DBCONFIG_ENABLE_FKEY:
+    case SQLITE_DBCONFIG_ENABLE_TRIGGER:
+    case SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER:
+    case SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION:
+    case SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE:
+    case SQLITE_DBCONFIG_ENABLE_QPSG:
+    case SQLITE_DBCONFIG_TRIGGER_EQP:
+    case SQLITE_DBCONFIG_RESET_DATABASE:
+    case SQLITE_DBCONFIG_DEFENSIVE:
+    case SQLITE_DBCONFIG_WRITABLE_SCHEMA:
+    case SQLITE_DBCONFIG_LEGACY_ALTER_TABLE:
+    case SQLITE_DBCONFIG_DQS_DML:
+    case SQLITE_DBCONFIG_DQS_DDL:
+    case SQLITE_DBCONFIG_ENABLE_VIEW:
+    case SQLITE_DBCONFIG_LEGACY_FILE_FORMAT:
+    case SQLITE_DBCONFIG_TRUSTED_SCHEMA:
+    case SQLITE_DBCONFIG_STMT_SCANSTATUS:
+    case SQLITE_DBCONFIG_REVERSE_SCANORDER:
+      return sqlite3_db_config(pDb, op, arg1, pArg2);
+    default: return SQLITE_MISUSE;
+  }
+}
+
+/*
+** This function is NOT part of the sqlite3 public API. It is strictly
+** for use by the sqlite project's own JS/WASM bindings.
+**
+** Wrapper for the variants of sqlite3_db_config() which take
+** (void*,int,int) variadic args.
+*/
+SQLITE_WASM_EXPORT
+int sqlite3__wasm_db_config_pii(sqlite3 *pDb, int op, void * pArg1, int arg2, int arg3){
+  switch(op){
+    case SQLITE_DBCONFIG_LOOKASIDE:
+      return sqlite3_db_config(pDb, op, pArg1, arg2, arg3);
+    default: return SQLITE_MISUSE;
+  }
+}
+
+/*
+** This function is NOT part of the sqlite3 public API. It is strictly
+** for use by the sqlite project's own JS/WASM bindings.
+**
+** Wrapper for the variants of sqlite3_db_config() which take
+** (const char *) variadic args.
+*/
+SQLITE_WASM_EXPORT
+int sqlite3__wasm_db_config_s(sqlite3 *pDb, int op, const char *zArg){
+  switch(op){
+    case SQLITE_DBCONFIG_MAINDBNAME:
+      return sqlite3_db_config(pDb, op, zArg);
+    default: return SQLITE_MISUSE;
+  }
+}
+
+
+/*
+** This function is NOT part of the sqlite3 public API. It is strictly
+** for use by the sqlite project's own JS/WASM bindings.
+**
+** Binding for combinations of sqlite3_config() arguments which take
+** a single integer argument.
+*/
+SQLITE_WASM_EXPORT
+int sqlite3__wasm_config_i(int op, int arg){
+  return sqlite3_config(op, arg);
+}
+
+/*
+** This function is NOT part of the sqlite3 public API. It is strictly
+** for use by the sqlite project's own JS/WASM bindings.
+**
+** Binding for combinations of sqlite3_config() arguments which take
+** two int arguments.
+*/
+SQLITE_WASM_EXPORT
+int sqlite3__wasm_config_ii(int op, int arg1, int arg2){
+  return sqlite3_config(op, arg1, arg2);
+}
+
+/*
+** This function is NOT part of the sqlite3 public API. It is strictly
+** for use by the sqlite project's own JS/WASM bindings.
+**
+** Binding for combinations of sqlite3_config() arguments which take
+** a single i64 argument.
+*/
+SQLITE_WASM_EXPORT
+int sqlite3__wasm_config_j(int op, sqlite3_int64 arg){
+  return sqlite3_config(op, arg);
+}
+
+/*
+** This function is NOT part of the sqlite3 public API. It is strictly
+** for use by the sqlite project's own JS/WASM bindings.
+**
+** If z is not NULL, returns the result of passing z to
+** sqlite3_mprintf()'s %Q modifier (if addQuotes is true) or %q (if
+** addQuotes is 0). Returns NULL if z is NULL or on OOM.
+*/
+SQLITE_WASM_EXPORT
+char * sqlite3__wasm_qfmt_token(char *z, int addQuotes){
+  char * rc = 0;
+  if( z ){
+    rc = addQuotes
+      ? sqlite3_mprintf("%Q", z)
+      : sqlite3_mprintf("%q", z);
+  }
+  return rc;
+}
+
+#if defined(__EMSCRIPTEN__) && defined(SQLITE_ENABLE_WASMFS)
+#include <emscripten/console.h>
+#include <emscripten/wasmfs.h>
+
+/*
+** This function is NOT part of the sqlite3 public API. It is strictly
+** for use by the sqlite project's own JS/WASM bindings, specifically
+** only when building with Emscripten's WASMFS support.
+**
+** This function should only be called if the JS side detects the
+** existence of the Origin-Private FileSystem (OPFS) APIs in the
+** client. The first time it is called, this function instantiates a
+** WASMFS backend impl for OPFS. On success, subsequent calls are
+** no-ops.
+**
+** This function may be passed a "mount point" name, which must have a
+** leading "/" and is currently restricted to a single path component,
+** e.g. "/foo" is legal but "/foo/" and "/foo/bar" are not. If it is
+** NULL or empty, it defaults to "/opfs".
+**
+** Returns 0 on success, SQLITE_NOMEM if instantiation of the backend
+** object fails, SQLITE_IOERR if mkdir() of the zMountPoint dir in
+** the virtual FS fails. In builds compiled without SQLITE_ENABLE_WASMFS
+** defined, SQLITE_NOTFOUND is returned without side effects.
+*/
+SQLITE_WASM_EXPORT
+int sqlite3__wasm_init_wasmfs(const char *zMountPoint){
+  static backend_t pOpfs = 0;
+  if( !zMountPoint || !*zMountPoint ) zMountPoint = "/opfs";
+  if( !pOpfs ){
+    pOpfs = wasmfs_create_opfs_backend();
+  }
+  /** It's not enough to instantiate the backend. We have to create a
+      mountpoint in the VFS and attach the backend to it. */
+  if( pOpfs && 0!=access(zMountPoint, F_OK) ){
+    /* Note that this check and is not robust but it will
+       hypothetically suffice for the transient wasm-based virtual
+       filesystem we're currently running in. */
+    const int rc = wasmfs_create_directory(zMountPoint, 0777, pOpfs);
+    /*emscripten_console_logf("OPFS mkdir(%s) rc=%d", zMountPoint, rc);*/
+    if(rc) return SQLITE_IOERR;
+  }
+  return pOpfs ? 0 : SQLITE_NOMEM;
+}
+#else
+SQLITE_WASM_EXPORT
+int sqlite3__wasm_init_wasmfs(const char *zUnused){
+  //emscripten_console_warn("WASMFS OPFS is not compiled in.");
+  if(zUnused){/*unused*/}
+  return SQLITE_NOTFOUND;
+}
+#endif /* __EMSCRIPTEN__ && SQLITE_ENABLE_WASMFS */
+
+#if SQLITE_WASM_ENABLE_C_TESTS
+
+SQLITE_WASM_EXPORT
+int sqlite3__wasm_test_intptr(int * p){
+  return *p = *p * 2;
+}
+
+SQLITE_WASM_EXPORT
+void * sqlite3__wasm_test_voidptr(void * p){
+  return p;
+}
+
+SQLITE_WASM_EXPORT
+int64_t sqlite3__wasm_test_int64_max(void){
+  return (int64_t)0x7fffffffffffffff;
+}
+
+SQLITE_WASM_EXPORT
+int64_t sqlite3__wasm_test_int64_min(void){
+  return ~sqlite3__wasm_test_int64_max();
+}
+
+SQLITE_WASM_EXPORT
+int64_t sqlite3__wasm_test_int64_times2(int64_t x){
+  return x * 2;
+}
+
+SQLITE_WASM_EXPORT
+void sqlite3__wasm_test_int64_minmax(int64_t * min, int64_t *max){
+  *max = sqlite3__wasm_test_int64_max();
+  *min = sqlite3__wasm_test_int64_min();
+  /*printf("minmax: min=%lld, max=%lld\n", *min, *max);*/
+}
+
+SQLITE_WASM_EXPORT
+int64_t sqlite3__wasm_test_int64ptr(int64_t * p){
+  /*printf("sqlite3__wasm_test_int64ptr( @%lld = 0x%llx )\n", (int64_t)p, *p);*/
+  return *p = *p * 2;
+}
+
+SQLITE_WASM_EXPORT
+void sqlite3__wasm_test_stack_overflow(int recurse){
+  if(recurse) sqlite3__wasm_test_stack_overflow(recurse);
+}
+
+/* For testing the 'string:dealloc' whwasmutil.xWrap() conversion. */
+SQLITE_WASM_EXPORT
+char * sqlite3__wasm_test_str_hello(int fail){
+  char * s = fail ? 0 : (char *)sqlite3_malloc(6);
+  if(s){
+    memcpy(s, "hello", 5);
+    s[5] = 0;
+  }
+  return s;
+}
+
+/*
+** For testing using SQLTester scripts.
+**
+** Return non-zero if string z matches glob pattern zGlob and zero if the
+** pattern does not match.
+**
+** To repeat:
+**
+**         zero == no match
+**     non-zero == match
+**
+** Globbing rules:
+**
+**      '*'       Matches any sequence of zero or more characters.
+**
+**      '?'       Matches exactly one character.
+**
+**     [...]      Matches one character from the enclosed list of
+**                characters.
+**
+**     [^...]     Matches one character not in the enclosed list.
+**
+**      '#'       Matches any sequence of one or more digits with an
+**                optional + or - sign in front, or a hexadecimal
+**                literal of the form 0x...
+*/
+static int sqlite3__wasm_SQLTester_strnotglob(const char *zGlob, const char *z){
+  int c, c2;
+  int invert;
+  int seen;
+  typedef int (*recurse_f)(const char *,const char *);
+  static const recurse_f recurse = sqlite3__wasm_SQLTester_strnotglob;
+
+  while( (c = (*(zGlob++)))!=0 ){
+    if( c=='*' ){
+      while( (c=(*(zGlob++))) == '*' || c=='?' ){
+        if( c=='?' && (*(z++))==0 ) return 0;
+      }
+      if( c==0 ){
+        return 1;
+      }else if( c=='[' ){
+        while( *z && recurse(zGlob-1,z)==0 ){
+          z++;
+        }
+        return (*z)!=0;
+      }
+      while( (c2 = (*(z++)))!=0 ){
+        while( c2!=c ){
+          c2 = *(z++);
+          if( c2==0 ) return 0;
+        }
+        if( recurse(zGlob,z) ) return 1;
+      }
+      return 0;
+    }else if( c=='?' ){
+      if( (*(z++))==0 ) return 0;
+    }else if( c=='[' ){
+      int prior_c = 0;
+      seen = 0;
+      invert = 0;
+      c = *(z++);
+      if( c==0 ) return 0;
+      c2 = *(zGlob++);
+      if( c2=='^' ){
+        invert = 1;
+        c2 = *(zGlob++);
+      }
+      if( c2==']' ){
+        if( c==']' ) seen = 1;
+        c2 = *(zGlob++);
+      }
+      while( c2 && c2!=']' ){
+        if( c2=='-' && zGlob[0]!=']' && zGlob[0]!=0 && prior_c>0 ){
+          c2 = *(zGlob++);
+          if( c>=prior_c && c<=c2 ) seen = 1;
+          prior_c = 0;
+        }else{
+          if( c==c2 ){
+            seen = 1;
+          }
+          prior_c = c2;
+        }
+        c2 = *(zGlob++);
+      }
+      if( c2==0 || (seen ^ invert)==0 ) return 0;
+    }else if( c=='#' ){
+      if( z[0]=='0'
+       && (z[1]=='x' || z[1]=='X')
+       && sqlite3Isxdigit(z[2])
+      ){
+        z += 3;
+        while( sqlite3Isxdigit(z[0]) ){ z++; }
+      }else{
+        if( (z[0]=='-' || z[0]=='+') && sqlite3Isdigit(z[1]) ) z++;
+        if( !sqlite3Isdigit(z[0]) ) return 0;
+        z++;
+        while( sqlite3Isdigit(z[0]) ){ z++; }
+      }
+    }else{
+      if( c!=(*(z++)) ) return 0;
+    }
+  }
+  return *z==0;
+}
+
+SQLITE_WASM_EXPORT
+int sqlite3__wasm_SQLTester_strglob(const char *zGlob, const char *z){
+ return !sqlite3__wasm_SQLTester_strnotglob(zGlob, z);
+}
+
+#endif /* SQLITE_WASM_ENABLE_C_TESTS */
+
+#undef SQLITE_WASM_EXPORT
+#undef SQLITE_WASM_HAS_VTAB
+#undef SQLITE_WASM_BARE_BONES
+#undef SQLITE_WASM_ENABLE_C_TESTS
diff --git a/ext/wasm/api/sqlite3-worker1-promiser.c-pp.js b/ext/wasm/api/sqlite3-worker1-promiser.c-pp.js
new file mode 100644
index 0000000000000000000000000000000000000000..55e497ead55c3592e340abf412c679512808cb35
--- /dev/null
+++ b/ext/wasm/api/sqlite3-worker1-promiser.c-pp.js
@@ -0,0 +1,346 @@
+//#ifnot omit-oo1
+/*
+  2022-08-24
+
+  The author disclaims copyright to this source code.  In place of a
+  legal notice, here is a blessing:
+
+  *   May you do good and not evil.
+  *   May you find forgiveness for yourself and forgive others.
+  *   May you share freely, never taking more than you give.
+
+  ***********************************************************************
+
+  This file implements a Promise-based proxy for the sqlite3 Worker
+  API #1. It is intended to be included either from the main thread or
+  a Worker, but only if (A) the environment supports nested Workers
+  and (B) it's _not_ a Worker which loads the sqlite3 WASM/JS
+  module. This file's features will load that module and provide a
+  slightly simpler client-side interface than the slightly-lower-level
+  Worker API does.
+
+  This script necessarily exposes one global symbol, but clients may
+  freely `delete` that symbol after calling it.
+*/
+'use strict';
+/**
+   Configures an sqlite3 Worker API #1 Worker such that it can be
+   manipulated via a Promise-based interface and returns a factory
+   function which returns Promises for communicating with the worker.
+   This proxy has an _almost_ identical interface to the normal
+   worker API, with any exceptions documented below.
+
+   It requires a configuration object with the following properties:
+
+   - `worker` (required): a Worker instance which loads
+   `sqlite3-worker1.js` or a functional equivalent. Note that the
+   promiser factory replaces the worker.onmessage property. This
+   config option may alternately be a function, in which case this
+   function re-assigns this property with the result of calling that
+   function, enabling delayed instantiation of a Worker.
+
+   - `onready` (optional, but...): this callback is called with no
+   arguments when the worker fires its initial
+   'sqlite3-api'/'worker1-ready' message, which it does when
+   sqlite3.initWorker1API() completes its initialization. This is the
+   simplest way to tell the worker to kick off work at the earliest
+   opportunity, and the only way to know when the worker module has
+   completed loading. The irony of using a callback for this, instead
+   of returning a promise from sqlite3Worker1Promiser() is not lost on
+   the developers: see sqlite3Worker1Promiser.v2() which uses a
+   Promise instead.
+
+   - `onunhandled` (optional): a callback which gets passed the
+   message event object for any worker.onmessage() events which
+   are not handled by this proxy. Ideally that "should" never
+   happen, as this proxy aims to handle all known message types.
+
+   - `generateMessageId` (optional): a function which, when passed an
+   about-to-be-posted message object, generates a _unique_ message ID
+   for the message, which this API then assigns as the messageId
+   property of the message. It _must_ generate unique IDs on each call
+   so that dispatching can work. If not defined, a default generator
+   is used (which should be sufficient for most or all cases).
+
+   - `debug` (optional): a console.debug()-style function for logging
+   information about messages.
+
+   This function returns a stateful factory function with the
+   following interfaces:
+
+   - Promise function(messageType, messageArgs)
+   - Promise function({message object})
+
+   The first form expects the "type" and "args" values for a Worker
+   message. The second expects an object in the form {type:...,
+   args:...}  plus any other properties the client cares to set. This
+   function will always set the `messageId` property on the object,
+   even if it's already set, and will set the `dbId` property to the
+   current database ID if it is _not_ set in the message object.
+
+   The function throws on error.
+
+   The function installs a temporary message listener, posts a
+   message to the configured Worker, and handles the message's
+   response via the temporary message listener. The then() callback
+   of the returned Promise is passed the `message.data` property from
+   the resulting message, i.e. the payload from the worker, stripped
+   of the lower-level event state which the onmessage() handler
+   receives.
+
+   Example usage:
+
+   ```
+   const config = {...};
+   const sq3Promiser = sqlite3Worker1Promiser(config);
+   sq3Promiser('open', {filename:"/foo.db"}).then(function(msg){
+     console.log("open response",msg); // => {type:'open', result: {filename:'/foo.db'}, ...}
+   });
+   sq3Promiser({type:'close'}).then((msg)=>{
+     console.log("close response",msg); // => {type:'close', result: {filename:'/foo.db'}, ...}
+   });
+   ```
+
+   Differences from Worker API #1:
+
+   - exec's {callback: STRING} option does not work via this
+   interface (it triggers an exception), but {callback: function}
+   does and works exactly like the STRING form does in the Worker:
+   the callback is called one time for each row of the result set,
+   passed the same worker message format as the worker API emits:
+
+     {type:typeString,
+      row:VALUE,
+      rowNumber:1-based-#,
+      columnNames: array}
+
+   Where `typeString` is an internally-synthesized message type string
+   used temporarily for worker message dispatching. It can be ignored
+   by all client code except that which tests this API. The `row`
+   property contains the row result in the form implied by the
+   `rowMode` option (defaulting to `'array'`). The `rowNumber` is a
+   1-based integer value incremented by 1 on each call into the
+   callback.
+
+   At the end of the result set, the same event is fired with
+   (row=undefined, rowNumber=null) to indicate that
+   the end of the result set has been reached. Note that the rows
+   arrive via worker-posted messages, with all the implications
+   of that.
+
+   Notable shortcomings:
+
+   - This API was not designed with ES6 modules in mind. Neither Firefox
+     nor Safari support, as of March 2023, the {type:"module"} flag to the
+     Worker constructor, so that particular usage is not something we're going
+     to target for the time being:
+
+     https://developer.mozilla.org/en-US/docs/Web/API/Worker/Worker
+*/
+globalThis.sqlite3Worker1Promiser = function callee(config = callee.defaultConfig){
+  // Inspired by: https://stackoverflow.com/a/52439530
+  if(1===arguments.length && 'function'===typeof arguments[0]){
+    const f = config;
+    config = Object.assign(Object.create(null), callee.defaultConfig);
+    config.onready = f;
+  }else{
+    config = Object.assign(Object.create(null), callee.defaultConfig, config);
+  }
+  const handlerMap = Object.create(null);
+  const noop = function(){};
+  const err = config.onerror
+        || noop /* config.onerror is intentionally undocumented
+                   pending finding a less ambiguous name */;
+  const debug = config.debug || noop;
+  const idTypeMap = config.generateMessageId ? undefined : Object.create(null);
+  const genMsgId = config.generateMessageId || function(msg){
+    return msg.type+'#'+(idTypeMap[msg.type] = (idTypeMap[msg.type]||0) + 1);
+  };
+  const toss = (...args)=>{throw new Error(args.join(' '))};
+  if(!config.worker) config.worker = callee.defaultConfig.worker;
+  if('function'===typeof config.worker) config.worker = config.worker();
+  let dbId;
+  let promiserFunc;
+  config.worker.onmessage = function(ev){
+    ev = ev.data;
+    debug('worker1.onmessage',ev);
+    let msgHandler = handlerMap[ev.messageId];
+    if(!msgHandler){
+      if(ev && 'sqlite3-api'===ev.type && 'worker1-ready'===ev.result) {
+        /*fired one time when the Worker1 API initializes*/
+        if(config.onready) config.onready(promiserFunc);
+        return;
+      }
+      msgHandler = handlerMap[ev.type] /* check for exec per-row callback */;
+      if(msgHandler && msgHandler.onrow){
+        msgHandler.onrow(ev);
+        return;
+      }
+      if(config.onunhandled) config.onunhandled(arguments[0]);
+      else err("sqlite3Worker1Promiser() unhandled worker message:",ev);
+      return;
+    }
+    delete handlerMap[ev.messageId];
+    switch(ev.type){
+        case 'error':
+          msgHandler.reject(ev);
+          return;
+        case 'open':
+          if(!dbId) dbId = ev.dbId;
+          break;
+        case 'close':
+          if(ev.dbId===dbId) dbId = undefined;
+          break;
+        default:
+          break;
+    }
+    try {msgHandler.resolve(ev)}
+    catch(e){msgHandler.reject(e)}
+  }/*worker.onmessage()*/;
+  return promiserFunc = function(/*(msgType, msgArgs) || (msgEnvelope)*/){
+    let msg;
+    if(1===arguments.length){
+      msg = arguments[0];
+    }else if(2===arguments.length){
+      msg = Object.create(null);
+      msg.type = arguments[0];
+      msg.args = arguments[1];
+      msg.dbId = msg.args.dbId;
+    }else{
+      toss("Invalid arguments for sqlite3Worker1Promiser()-created factory.");
+    }
+    if(!msg.dbId && msg.type!=='open') msg.dbId = dbId;
+    msg.messageId = genMsgId(msg);
+    msg.departureTime = performance.now();
+    const proxy = Object.create(null);
+    proxy.message = msg;
+    let rowCallbackId /* message handler ID for exec on-row callback proxy */;
+    if('exec'===msg.type && msg.args){
+      if('function'===typeof msg.args.callback){
+        rowCallbackId = msg.messageId+':row';
+        proxy.onrow = msg.args.callback;
+        msg.args.callback = rowCallbackId;
+        handlerMap[rowCallbackId] = proxy;
+      }else if('string' === typeof msg.args.callback){
+        toss("exec callback may not be a string when using the Promise interface.");
+        /**
+           Design note: the reason for this limitation is that this
+           API takes over worker.onmessage() and the client has no way
+           of adding their own message-type handlers to it. Per-row
+           callbacks are implemented as short-lived message.type
+           mappings for worker.onmessage().
+
+           We "could" work around this by providing a new
+           config.fallbackMessageHandler (or some such) which contains
+           a map of event type names to callbacks. Seems like overkill
+           for now, seeing as the client can pass callback functions
+           to this interface (whereas the string-form "callback" is
+           needed for the over-the-Worker interface).
+        */
+      }
+    }
+    //debug("requestWork", msg);
+    let p = new Promise(function(resolve, reject){
+      proxy.resolve = resolve;
+      proxy.reject = reject;
+      handlerMap[msg.messageId] = proxy;
+      debug("Posting",msg.type,"message to Worker dbId="+(dbId||'default')+':',msg);
+      config.worker.postMessage(msg);
+    });
+    if(rowCallbackId) p = p.finally(()=>delete handlerMap[rowCallbackId]);
+    return p;
+  };
+}/*sqlite3Worker1Promiser()*/;
+
+globalThis.sqlite3Worker1Promiser.defaultConfig = {
+  worker: function(){
+//#if target=es6-module
+    return new Worker(new URL("sqlite3-worker1-bundler-friendly.mjs", import.meta.url),{
+      type: 'module'
+    });
+//#else
+    let theJs = "sqlite3-worker1.js";
+    if(this.currentScript){
+      const src = this.currentScript.src.split('/');
+      src.pop();
+      theJs = src.join('/')+'/' + theJs;
+      //sqlite3.config.warn("promiser currentScript, theJs =",this.currentScript,theJs);
+    }else if(globalThis.location){
+      //sqlite3.config.warn("promiser globalThis.location =",globalThis.location);
+      const urlParams = new URL(globalThis.location.href).searchParams;
+      if(urlParams.has('sqlite3.dir')){
+        theJs = urlParams.get('sqlite3.dir') + '/' + theJs;
+      }
+    }
+    return new Worker(theJs + globalThis.location.search);
+//#endif
+  }
+//#ifnot target=es6-module
+  .bind({
+    currentScript: globalThis?.document?.currentScript
+  })
+//#endif
+  ,
+  onerror: (...args)=>console.error('worker1 promiser error',...args)
+}/*defaultConfig*/;
+
+/**
+   sqlite3Worker1Promiser.v2(), added in 3.46, works identically to
+   sqlite3Worker1Promiser() except that it returns a Promise instead
+   of relying an an onready callback in the config object. The Promise
+   resolves to the same factory function which
+   sqlite3Worker1Promiser() returns.
+
+   If config is-a function or is an object which contains an onready
+   function, that function is replaced by a proxy which will resolve
+   after calling the original function and will reject if that
+   function throws.
+*/
+sqlite3Worker1Promiser.v2 = function(config){
+  let oldFunc;
+  if( 'function' == typeof config ){
+    oldFunc = config;
+    config = {};
+  }else if('function'===typeof config?.onready){
+    oldFunc = config.onready;
+    delete config.onready;
+  }
+  const promiseProxy = Object.create(null);
+  config = Object.assign((config || Object.create(null)),{
+    onready: async function(func){
+      try {
+        if( oldFunc ) await oldFunc(func);
+        promiseProxy.resolve(func);
+      }
+      catch(e){promiseProxy.reject(e)}
+    }
+  });
+  const p = new Promise(function(resolve,reject){
+    promiseProxy.resolve = resolve;
+    promiseProxy.reject = reject;
+  });
+  try{
+    this.original(config);
+  }catch(e){
+    promiseProxy.reject(e);
+  }
+  return p;
+}.bind({
+   /* We do this because clients are
+      recommended to delete globalThis.sqlite3Worker1Promiser. */
+  original: sqlite3Worker1Promiser
+});
+
+//#if target=es6-module
+/**
+  When built as a module, we export sqlite3Worker1Promiser.v2()
+  instead of sqlite3Worker1Promise() because (A) its interface is more
+  conventional for ESM usage and (B) the ESM option export option for
+  this API did not exist until v2 was created, so there's no backwards
+  incompatibility.
+*/
+export default sqlite3Worker1Promiser.v2;
+//#endif /* target=es6-module */
+//#else
+/* Built with the omit-oo1 flag. */
+//#endif ifnot omit-oo1
diff --git a/ext/wasm/api/sqlite3-worker1.c-pp.js b/ext/wasm/api/sqlite3-worker1.c-pp.js
new file mode 100644
index 0000000000000000000000000000000000000000..74de9ec7ef19df9b0b62505db19801d460f20f62
--- /dev/null
+++ b/ext/wasm/api/sqlite3-worker1.c-pp.js
@@ -0,0 +1,54 @@
+//#ifnot omit-oo1
+/*
+  2022-05-23
+
+  The author disclaims copyright to this source code.  In place of a
+  legal notice, here is a blessing:
+
+  *   May you do good and not evil.
+  *   May you find forgiveness for yourself and forgive others.
+  *   May you share freely, never taking more than you give.
+
+  ***********************************************************************
+
+  This is a JS Worker file for the main sqlite3 api. It loads
+  sqlite3.js, initializes the module, and postMessage()'s a message
+  after the module is initialized:
+
+  {type: 'sqlite3-api', result: 'worker1-ready'}
+
+  This seemingly superfluous level of indirection is necessary when
+  loading sqlite3.js via a Worker. Instantiating a worker with new
+  Worker("sqlite.js") will not (cannot) call sqlite3InitModule() to
+  initialize the module due to a timing/order-of-operations conflict
+  (and that symbol is not exported in a way that a Worker loading it
+  that way can see it).  Thus JS code wanting to load the sqlite3
+  Worker-specific API needs to pass _this_ file (or equivalent) to the
+  Worker constructor and then listen for an event in the form shown
+  above in order to know when the module has completed initialization.
+
+  This file accepts a URL arguments to adjust how it loads sqlite3.js:
+
+  - `sqlite3.dir`, if set, treats the given directory name as the
+    directory from which `sqlite3.js` will be loaded.
+*/
+//#if target=es6-bundler-friendly
+import {default as sqlite3InitModule} from './sqlite3-bundler-friendly.mjs';
+//#else
+"use strict";
+{
+  const urlParams = globalThis.location
+        ? new URL(globalThis.location.href).searchParams
+        : new URLSearchParams();
+  let theJs = 'sqlite3.js';
+  if(urlParams.has('sqlite3.dir')){
+    theJs = urlParams.get('sqlite3.dir') + '/' + theJs;
+  }
+  //console.warn("worker1 theJs =",theJs);
+  importScripts(theJs);
+}
+//#endif
+sqlite3InitModule().then(sqlite3 => sqlite3.initWorker1API());
+//#else
+/* Built with the omit-oo1 flag. */
+//#endif ifnot omit-oo1
diff --git a/ext/wasm/batch-runner-sahpool.html b/ext/wasm/batch-runner-sahpool.html
new file mode 100644
index 0000000000000000000000000000000000000000..ad7e7b5408283fdd41e59a5fad8a2305de39d60d
--- /dev/null
+++ b/ext/wasm/batch-runner-sahpool.html
@@ -0,0 +1,86 @@
+<!doctype html>
+<html lang="en-us">
+  <head>
+    <meta charset="utf-8">
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+    <link rel="shortcut icon" href="data:image/x-icon;," type="image/x-icon">
+    <link rel="stylesheet" href="common/testing.css"/>
+    <title>sqlite3-api batch SQL runner for the SAHPool VFS</title>
+  </head>
+  <body>
+    <header id='titlebar'><span>sqlite3-api batch SQL runner for the SAHPool VFS</span></header>
+    <div>
+      <span class='input-wrapper'>
+        <input type='checkbox' class='disable-during-eval' id='cb-reverse-log-order' checked></input>
+        <label for='cb-reverse-log-order' id='lbl-reverse-log-order'>Reverse log order</label>
+      </span>
+    </div>
+    <div id='test-output' class='reverse'></div>
+    <script>
+      (function(){
+        const E = (sel)=>document.querySelector(sel);
+
+        const eOut = E('#test-output');
+        const log2 = function(cssClass,...args){
+          let ln;
+          if(1 || cssClass){
+            ln = document.createElement('div');
+            if(cssClass) ln.classList.add(cssClass);
+            ln.append(document.createTextNode(args.join(' ')));
+          }else{
+            // This doesn't work with the "reverse order" option!
+            ln = document.createTextNode(args.join(' ')+'\n');
+          }
+          eOut.append(ln);
+        };
+        const log = (...args)=>{
+          //console.log(...args);
+          log2('', ...args);
+        };
+        const logErr = function(...args){
+          console.error(...args);
+          log2('error', ...args);
+        };
+        const logWarn = function(...args){
+          console.warn(...args);
+          log2('warning', ...args);
+        };
+
+        const cbReverseLog = E('#cb-reverse-log-order');
+        const lblReverseLog = E('#lbl-reverse-log-order');
+        if(cbReverseLog.checked){
+            lblReverseLog.classList.add('warning');
+            eOut.classList.add('reverse');
+        }
+        cbReverseLog.addEventListener('change', function(){
+            if(this.checked){
+                eOut.classList.add('reverse');
+                lblReverseLog.classList.add('warning');
+            }else{
+                eOut.classList.remove('reverse');
+                lblReverseLog.classList.remove('warning');
+            }
+        }, false);
+
+        const w = new Worker('batch-runner-sahpool.js?sqlite3.dir=jswasm');
+        w.onmessage = function(msg){
+          msg = msg.data;
+          switch(msg.type){
+            case 'stdout': log(...msg.data); break;
+            case 'warn': logWarn(...msg.data); break;
+            case 'error': logErr(...msg.data); break;
+            default:
+              logErr("Unhandled worker message type:",msg);
+              break;
+          }
+        };
+      })();
+    </script>
+    <style>
+      #test-output {
+          white-space: break-spaces;
+          overflow: auto;
+      }
+    </style>
+  </body>
+</html>
diff --git a/ext/wasm/batch-runner-sahpool.js b/ext/wasm/batch-runner-sahpool.js
new file mode 100644
index 0000000000000000000000000000000000000000..dfa5044a9e7ae3a4843d8f3afc3b77b5306e734d
--- /dev/null
+++ b/ext/wasm/batch-runner-sahpool.js
@@ -0,0 +1,341 @@
+/*
+  2023-11-30
+
+  The author disclaims copyright to this source code.  In place of a
+  legal notice, here is a blessing:
+
+  *   May you do good and not evil.
+  *   May you find forgiveness for yourself and forgive others.
+  *   May you share freely, never taking more than you give.
+
+  ***********************************************************************
+
+  A basic batch SQL runner for the SAHPool VFS. This file must be run in
+  a worker thread. This is not a full-featured app, just a way to get some
+  measurements for batch execution of SQL for the OPFS SAH Pool VFS.
+*/
+'use strict';
+
+const wMsg = function(msgType,...args){
+  postMessage({
+    type: msgType,
+    data: args
+  });
+};
+const toss = function(...args){throw new Error(args.join(' '))};
+const warn = (...args)=>{ wMsg('warn',...args); };
+const error = (...args)=>{ wMsg('error',...args); };
+const log = (...args)=>{ wMsg('stdout',...args); }
+let sqlite3;
+const urlParams = new URL(globalThis.location.href).searchParams;
+const cacheSize = (()=>{
+  if(urlParams.has('cachesize')) return +urlParams.get('cachesize');
+  return 200;
+})();
+
+
+/** Throws if the given sqlite3 result code is not 0. */
+const checkSqliteRc = (dbh,rc)=>{
+  if(rc) toss("Prepare failed:",sqlite3.capi.sqlite3_errmsg(dbh));
+};
+
+const sqlToDrop = [
+  "SELECT type,name FROM sqlite_schema ",
+  "WHERE name NOT LIKE 'sqlite\\_%' escape '\\' ",
+  "AND name NOT LIKE '\\_%' escape '\\'"
+].join('');
+
+const clearDbSqlite = function(db){
+  // This would be SO much easier with the oo1 API, but we specifically want to
+  // inject metrics we can't get via that API, and we cannot reliably (OPFS)
+  // open the same DB twice to clear it using that API, so...
+  const rc = sqlite3.wasm.exports.sqlite3_wasm_db_reset(db.handle);
+  log("reset db rc =",rc,db.id, db.filename);
+};
+
+const App = {
+  db: undefined,
+  cache:Object.create(null),
+  log: log,
+  warn: warn,
+  error: error,
+  metrics: {
+    fileCount: 0,
+    runTimeMs: 0,
+    prepareTimeMs: 0,
+    stepTimeMs: 0,
+    stmtCount: 0,
+    strcpyMs: 0,
+    sqlBytes: 0
+  },
+  fileList: undefined,
+  execSql: async function(name,sql){
+    const db = this.db;
+    const banner = "========================================";
+    this.log(banner,
+             "Running",name,'('+sql.length,'bytes)');
+    const capi = this.sqlite3.capi, wasm = this.sqlite3.wasm;
+    let pStmt = 0, pSqlBegin;
+    const metrics = db.metrics = Object.create(null);
+    metrics.prepTotal = metrics.stepTotal = 0;
+    metrics.stmtCount = 0;
+    metrics.malloc = 0;
+    metrics.strcpy = 0;
+    if(this.gotErr){
+      this.error("Cannot run SQL: error cleanup is pending.");
+      return;
+    }
+    // Run this async so that the UI can be updated for the above header...
+    const endRun = ()=>{
+      metrics.evalSqlEnd = performance.now();
+      metrics.evalTimeTotal = (metrics.evalSqlEnd - metrics.evalSqlStart);
+      this.log("metrics:",JSON.stringify(metrics, undefined, ' '));
+      this.log("prepare() count:",metrics.stmtCount);
+      this.log("Time in prepare_v2():",metrics.prepTotal,"ms",
+               "("+(metrics.prepTotal / metrics.stmtCount),"ms per prepare())");
+      this.log("Time in step():",metrics.stepTotal,"ms",
+               "("+(metrics.stepTotal / metrics.stmtCount),"ms per step())");
+      this.log("Total runtime:",metrics.evalTimeTotal,"ms");
+      this.log("Overhead (time - prep - step):",
+               (metrics.evalTimeTotal - metrics.prepTotal - metrics.stepTotal)+"ms");
+      this.log(banner,"End of",name);
+      this.metrics.prepareTimeMs += metrics.prepTotal;
+      this.metrics.stepTimeMs += metrics.stepTotal;
+      this.metrics.stmtCount += metrics.stmtCount;
+      this.metrics.strcpyMs += metrics.strcpy;
+      this.metrics.sqlBytes += sql.length;
+    };
+
+    const runner = function(resolve, reject){
+      ++this.metrics.fileCount;
+      metrics.evalSqlStart = performance.now();
+      const stack = wasm.scopedAllocPush();
+      try {
+        let t, rc;
+        let sqlByteLen = sql.byteLength;
+        const [ppStmt, pzTail] = wasm.scopedAllocPtr(2);
+        t = performance.now();
+        pSqlBegin = wasm.scopedAlloc( sqlByteLen + 1/*SQL + NUL*/) || toss("alloc(",sqlByteLen,") failed");
+        metrics.malloc = performance.now() - t;
+        metrics.byteLength = sqlByteLen;
+        let pSql = pSqlBegin;
+        const pSqlEnd = pSqlBegin + sqlByteLen;
+        t = performance.now();
+        wasm.heap8().set(sql, pSql);
+        wasm.poke(pSql + sqlByteLen, 0);
+        //log("SQL:",wasm.cstrToJs(pSql));
+        metrics.strcpy = performance.now() - t;
+        let breaker = 0;
+        while(pSql && wasm.peek8(pSql)){
+          wasm.pokePtr(ppStmt, 0);
+          wasm.pokePtr(pzTail, 0);
+          t = performance.now();
+          rc = capi.sqlite3_prepare_v2(
+            db.handle, pSql, sqlByteLen, ppStmt, pzTail
+          );
+          metrics.prepTotal += performance.now() - t;
+          checkSqliteRc(db.handle, rc);
+          pStmt = wasm.peekPtr(ppStmt);
+          pSql = wasm.peekPtr(pzTail);
+          sqlByteLen = pSqlEnd - pSql;
+          if(!pStmt) continue/*empty statement*/;
+          ++metrics.stmtCount;
+          t = performance.now();
+          rc = capi.sqlite3_step(pStmt);
+          capi.sqlite3_finalize(pStmt);
+          pStmt = 0;
+          metrics.stepTotal += performance.now() - t;
+          switch(rc){
+            case capi.SQLITE_ROW:
+            case capi.SQLITE_DONE: break;
+            default: checkSqliteRc(db.handle, rc); toss("Not reached.");
+          }
+        }
+        resolve(this);
+      }catch(e){
+        if(pStmt) capi.sqlite3_finalize(pStmt);
+        this.gotErr = e;
+        reject(e);
+      }finally{
+        capi.sqlite3_exec(db.handle,"rollback;",0,0,0);
+        wasm.scopedAllocPop(stack);
+      }
+    }.bind(this);
+    const p = new Promise(runner);
+    return p.catch(
+      (e)=>this.error("Error via execSql("+name+",...):",e.message)
+    ).finally(()=>{
+      endRun();
+    });
+  },
+
+  /**
+     Loads batch-runner.list and populates the selection list from
+     it. Returns a promise which resolves to nothing in particular
+     when it completes. Only intended to be run once at the start
+     of the app.
+  */
+  loadSqlList: async function(){
+    const infile = 'batch-runner.list';
+    this.log("Loading list of SQL files:", infile);
+    let txt;
+    try{
+      const r = await fetch(infile);
+      if(404 === r.status){
+        toss("Missing file '"+infile+"'.");
+      }
+      if(!r.ok) toss("Loading",infile,"failed:",r.statusText);
+      txt = await r.text();
+    }catch(e){
+      this.error(e.message);
+      throw e;
+    }
+    App.fileList = txt.split(/\n+/).filter(x=>!!x);
+    this.log("Loaded",infile);
+  },
+
+  /** Fetch ./fn and return its contents as a Uint8Array. */
+  fetchFile: async function(fn, cacheIt=false){
+    if(cacheIt && this.cache[fn]) return this.cache[fn];
+    this.log("Fetching",fn,"...");
+    let sql;
+    try {
+      const r = await fetch(fn);
+      if(!r.ok) toss("Fetch failed:",r.statusText);
+      sql = new Uint8Array(await r.arrayBuffer());
+    }catch(e){
+      this.error(e.message);
+      throw e;
+    }
+    this.log("Fetched",sql.length,"bytes from",fn);
+    if(cacheIt) this.cache[fn] = sql;
+    return sql;
+  }/*fetchFile()*/,
+
+  /**
+     Converts this.metrics() to a form which is suitable for easy conversion to
+     CSV. It returns an array of arrays. The first sub-array is the column names.
+     The 2nd and subsequent are the values, one per test file (only the most recent
+     metrics are kept for any given file).
+  */
+  metricsToArrays: function(){
+    const rc = [];
+    Object.keys(this.dbs).sort().forEach((k)=>{
+      const d = this.dbs[k];
+      const m = d.metrics;
+      delete m.evalSqlStart;
+      delete m.evalSqlEnd;
+      const mk = Object.keys(m).sort();
+      if(!rc.length){
+        rc.push(['db', ...mk]);
+      }
+      const row = [k.split('/').pop()/*remove dir prefix from filename*/];
+      rc.push(row);
+      row.push(...mk.map((kk)=>m[kk]));
+    });
+    return rc;
+  },
+
+  metricsToBlob: function(colSeparator='\t'){
+    const ar = [], ma = this.metricsToArrays();
+    if(!ma.length){
+      this.error("Metrics are empty. Run something.");
+      return;
+    }
+    ma.forEach(function(row){
+      ar.push(row.join(colSeparator),'\n');
+    });
+    return new Blob(ar);
+  },
+
+  /**
+     Fetch file fn and eval it as an SQL blob. This is an async
+     operation and returns a Promise which resolves to this
+     object on success.
+  */
+  evalFile: async function(fn){
+    const sql = await this.fetchFile(fn);
+    return this.execSql(fn,sql);
+  }/*evalFile()*/,
+
+  /**
+     Fetches the handle of the db associated with
+     this.e.selImpl.value, opening it if needed.
+  */
+  initDb: function(){
+    const capi = this.sqlite3.capi, wasm = this.sqlite3.wasm;
+    const stack = wasm.scopedAllocPush();
+    let pDb = 0;
+    const d = Object.create(null);
+    d.filename = "/batch.db";
+    try{
+      const oFlags = capi.SQLITE_OPEN_CREATE | capi.SQLITE_OPEN_READWRITE;
+      const ppDb = wasm.scopedAllocPtr();
+      const rc = capi.sqlite3_open_v2(d.filename, ppDb, oFlags, this.PoolUtil.vfsName);
+      pDb = wasm.peekPtr(ppDb)
+      if(rc) toss("sqlite3_open_v2() failed with code",rc);
+      capi.sqlite3_exec(pDb, "PRAGMA cache_size="+cacheSize, 0, 0, 0);
+      this.log("cache_size =",cacheSize);
+    }catch(e){
+      if(pDb) capi.sqlite3_close_v2(pDb);
+      throw e;
+    }finally{
+      wasm.scopedAllocPop(stack);
+    }
+    d.handle = pDb;
+    this.log("Opened db:",d.filename,'@',d.handle);
+    return d;
+  },
+
+  closeDb: function(){
+    if(this.db.handle){
+      this.sqlite3.capi.sqlite3_close_v2(this.db.handle);
+      this.db.handle = undefined;
+    }
+  },
+
+  run: async function(sqlite3){
+    delete this.run;
+    this.sqlite3 = sqlite3;
+    const capi = sqlite3.capi, wasm = sqlite3.wasm;
+    this.log("Loaded module:",capi.sqlite3_libversion(), capi.sqlite3_sourceid());
+    this.log("WASM heap size =",wasm.heap8().length);
+    let timeStart;
+    sqlite3.installOpfsSAHPoolVfs({
+      clearOnInit: true, initialCapacity: 4,
+      name: 'batch-sahpool',
+      verbosity: 2
+    }).then(PoolUtil=>{
+      App.PoolUtil = PoolUtil;
+      App.db = App.initDb();
+    })
+      .then(async ()=>this.loadSqlList())
+      .then(async ()=>{
+        timeStart = performance.now();
+        for(let i = 0; i < App.fileList.length; ++i){
+          const fn = App.fileList[i];
+          await App.evalFile(fn);
+          if(App.gotErr) throw App.gotErr;
+        }
+      })
+      .then(()=>{
+        App.metrics.runTimeMs = performance.now() - timeStart;
+        App.log("total metrics:",JSON.stringify(App.metrics, undefined, ' '));
+        App.log("Reload the page to run this again.");
+        App.closeDb();
+        App.PoolUtil.removeVfs();
+      })
+      .catch(e=>this.error("ERROR:",e));
+  }/*run()*/
+}/*App*/;
+
+let sqlite3Js = 'sqlite3.js';
+if(urlParams.has('sqlite3.dir')){
+  sqlite3Js = urlParams.get('sqlite3.dir') + '/' + sqlite3Js;
+}
+importScripts(sqlite3Js);
+globalThis.sqlite3InitModule().then(async function(sqlite3_){
+  log("Done initializing. Running batch runner...");
+  sqlite3 = sqlite3_;
+  App.run(sqlite3_);
+});
diff --git a/ext/wasm/batch-runner.html b/ext/wasm/batch-runner.html
new file mode 100644
index 0000000000000000000000000000000000000000..5258f9597e34c263655c004b50e8eb5cd17af27d
--- /dev/null
+++ b/ext/wasm/batch-runner.html
@@ -0,0 +1,90 @@
+<!doctype html>
+<html lang="en-us">
+  <head>
+    <meta charset="utf-8">
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+    <link rel="shortcut icon" href="data:image/x-icon;," type="image/x-icon">
+    <link rel="stylesheet" href="common/emscripten.css"/>
+    <link rel="stylesheet" href="common/testing.css"/>
+    <title>sqlite3-api batch SQL runner</title>
+  </head>
+  <body>
+    <header id='titlebar'><span>sqlite3-api batch SQL runner</span></header>
+    <!-- emscripten bits -->
+    <figure id="module-spinner">
+      <div class="spinner"></div>
+      <div class='center'><strong>Initializing app...</strong></div>
+      <div class='center'>
+        On a slow internet connection this may take a moment.  If this
+        message displays for "a long time", intialization may have
+        failed and the JavaScript console may contain clues as to why.
+      </div>
+    </figure>
+    <div class="emscripten" id="module-status">Downloading...</div>
+    <div class="emscripten">
+      <progress value="0" max="100" id="module-progress" hidden='1'></progress>  
+    </div><!-- /emscripten bits -->
+    <p>
+      This page is for batch-running extracts from the output
+      of <tt>speedtest1 --script</tt>, as well as other standalone SQL
+      scripts.
+    </p>
+    <p id='warn-list' class='warning'>ACHTUNG: this file requires a generated input list
+      file. Run "make batch" from this directory to generate it.
+    </p>
+    <p id='warn-opfs' class='warning hidden'>WARNING: if the WASMFS/OPFS layer crashes, this page may
+      become completely unresponsive and need to be closed and reloaded to recover.
+    </p>
+    <p id='warn-websql' class='warning hidden'>WARNING: WebSQL's limited API requires that
+      this app split up SQL batches into separate statements for execution. That will
+      only work so long as semicolon characters are <em>only</em> used to terminate
+      SQL statements, and not used within string literals or the like.
+    </p>
+    <hr>
+    <fieldset id='toolbar'>
+      <div>
+        <select class='disable-during-eval' id='sql-select'>
+          <option disabled selected>Populated via script code</option>
+        </select>
+        <button class='disable-during-eval' id='sql-run'>Run selected SQL</button>
+        <button class='disable-during-eval' id='sql-run-next'>Run next...</button>
+        <button class='disable-during-eval' id='sql-run-remaining'>Run all remaining...</button>
+        <button class='disable-during-eval' id='export-metrics' disabled>Export metrics (WIP)<br>(broken by refactoring)</button>
+        <button class='disable-during-eval' id='db-reset'>Reset db</button>
+        <button id='output-clear'>Clear output</button>
+        <span class='input-wrapper flex-col'>
+          <label for='select-impl'>Storage impl:</label>
+          <select id='select-impl'>
+            <option value='virtualfs'>Virtual filesystem</option>
+            <option value='memdb'>:memory:</option>
+            <option value='wasmfs-opfs'>WASMFS OPFS</option>
+            <option value='websql'>WebSQL</option>
+          </select>
+        </span>
+      </fieldset>
+    </div>
+    <hr>
+      <span class='input-wrapper'>
+        <input type='checkbox' class='disable-during-eval' id='cb-reverse-log-order' checked></input>
+        <label for='cb-reverse-log-order'>Reverse log order (newest first)</label>
+      </span>
+    <div id='test-output'></div>
+    <script src="jswasm/sqlite3.js"></script>
+    <script src="common/SqliteTestUtil.js"></script>
+    <script src="batch-runner.js"></script>
+    <style>
+      .flex-col {
+          display: flex;
+          flex-direction: column;
+      }
+      #toolbar > div {
+          display: flex;
+          flex-direction: row;
+          flex-wrap: wrap;
+      }
+      #toolbar > div > * {
+          margin: 0.25em;
+      }
+    </style>
+  </body>
+</html>
diff --git a/ext/wasm/batch-runner.js b/ext/wasm/batch-runner.js
new file mode 100644
index 0000000000000000000000000000000000000000..e7a322b7f01a80e75f02a9e26247e786a054f1fb
--- /dev/null
+++ b/ext/wasm/batch-runner.js
@@ -0,0 +1,604 @@
+/*
+  2022-08-29
+
+  The author disclaims copyright to this source code.  In place of a
+  legal notice, here is a blessing:
+
+  *   May you do good and not evil.
+  *   May you find forgiveness for yourself and forgive others.
+  *   May you share freely, never taking more than you give.
+
+  ***********************************************************************
+
+  A basic batch SQL runner for sqlite3-api.js. This file must be run in
+  main JS thread and sqlite3.js must have been loaded before it.
+*/
+'use strict';
+(function(){
+  const toss = function(...args){throw new Error(args.join(' '))};
+  const warn = console.warn.bind(console);
+  let sqlite3;
+  const urlParams = new URL(self.location.href).searchParams;
+  const cacheSize = (()=>{
+    if(urlParams.has('cachesize')) return +urlParams.get('cachesize');
+    return 200;
+  })();
+
+  /** Throws if the given sqlite3 result code is not 0. */
+  const checkSqliteRc = (dbh,rc)=>{
+    if(rc) toss("Prepare failed:",sqlite3.capi.sqlite3_errmsg(dbh));
+  };
+
+  const sqlToDrop = [
+    "SELECT type,name FROM sqlite_schema ",
+    "WHERE name NOT LIKE 'sqlite\\_%' escape '\\' ",
+    "AND name NOT LIKE '\\_%' escape '\\'"
+  ].join('');
+  
+  const clearDbWebSQL = function(db){
+    db.handle.transaction(function(tx){
+      const onErr = (e)=>console.error(e);
+      const callback = function(tx, result){
+        const rows = result.rows;
+        let i, n;
+        i = n = rows.length;
+        while(i--){
+          const row = rows.item(i);
+          const name = JSON.stringify(row.name);
+          const type = row.type;
+          switch(type){
+              case 'index': case 'table':
+              case 'trigger': case 'view': {
+                const sql2 = 'DROP '+type+' '+name;
+                tx.executeSql(sql2, [], ()=>{}, onErr);
+                break;
+              }
+              default:
+                warn("Unhandled db entry type:",type,'name =',name);
+                break;
+          }
+        }
+      };
+      tx.executeSql(sqlToDrop, [], callback, onErr);
+      db.handle.changeVersion(db.handle.version, "", ()=>{}, onErr, ()=>{});
+    });
+  };
+
+  const clearDbSqlite = function(db){
+    // This would be SO much easier with the oo1 API, but we specifically want to
+    // inject metrics we can't get via that API, and we cannot reliably (OPFS)
+    // open the same DB twice to clear it using that API, so...
+    const rc = sqlite3.wasm.exports.sqlite3_wasm_db_reset(db.handle);
+    App.logHtml("reset db rc =",rc,db.id, db.filename);
+  };
+
+  const E = (s)=>document.querySelector(s);
+  const App = {
+    e: {
+      output: E('#test-output'),
+      selSql: E('#sql-select'),
+      btnRun: E('#sql-run'),
+      btnRunNext: E('#sql-run-next'),
+      btnRunRemaining: E('#sql-run-remaining'),
+      btnExportMetrics: E('#export-metrics'),
+      btnClear: E('#output-clear'),
+      btnReset: E('#db-reset'),
+      cbReverseLog: E('#cb-reverse-log-order'),
+      selImpl: E('#select-impl'),
+      fsToolbar: E('#toolbar')
+    },
+    db: Object.create(null),
+    dbs: Object.create(null),
+    cache:{},
+    metrics: {
+      fileCount: 0,
+      runTimeMs: 0,
+      prepareTimeMs: 0,
+      stepTimeMs: 0,
+      stmtCount: 0,
+      strcpyMs: 0,
+      sqlBytes: 0
+    },
+    log: console.log.bind(console),
+    warn: console.warn.bind(console),
+    cls: function(){this.e.output.innerHTML = ''},
+    logHtml2: function(cssClass,...args){
+      const ln = document.createElement('div');
+      if(cssClass) ln.classList.add(cssClass);
+      ln.append(document.createTextNode(args.join(' ')));
+      this.e.output.append(ln);
+      //this.e.output.lastElementChild.scrollIntoViewIfNeeded();
+    },
+    logHtml: function(...args){
+      console.log(...args);
+      if(1) this.logHtml2('', ...args);
+    },
+    logErr: function(...args){
+      console.error(...args);
+      if(1) this.logHtml2('error', ...args);
+    },
+
+    execSql: async function(name,sql){
+      const db = this.getSelectedDb();
+      const banner = "========================================";
+      this.logHtml(banner,
+                   "Running",name,'('+sql.length,'bytes) using',db.id);
+      const capi = this.sqlite3.capi, wasm = this.sqlite3.wasm;
+      let pStmt = 0, pSqlBegin;
+      const metrics = db.metrics = Object.create(null);
+      metrics.prepTotal = metrics.stepTotal = 0;
+      metrics.stmtCount = 0;
+      metrics.malloc = 0;
+      metrics.strcpy = 0;
+      this.blockControls(true);
+      if(this.gotErr){
+        this.logErr("Cannot run SQL: error cleanup is pending.");
+        return;
+      }
+      // Run this async so that the UI can be updated for the above header...
+      const endRun = ()=>{
+        metrics.evalSqlEnd = performance.now();
+        metrics.evalTimeTotal = (metrics.evalSqlEnd - metrics.evalSqlStart);
+        this.logHtml(db.id,"metrics:",JSON.stringify(metrics, undefined, ' '));
+        this.logHtml("prepare() count:",metrics.stmtCount);
+        this.logHtml("Time in prepare_v2():",metrics.prepTotal,"ms",
+                     "("+(metrics.prepTotal / metrics.stmtCount),"ms per prepare())");
+        this.logHtml("Time in step():",metrics.stepTotal,"ms",
+                     "("+(metrics.stepTotal / metrics.stmtCount),"ms per step())");
+        this.logHtml("Total runtime:",metrics.evalTimeTotal,"ms");
+        this.logHtml("Overhead (time - prep - step):",
+                     (metrics.evalTimeTotal - metrics.prepTotal - metrics.stepTotal)+"ms");
+        this.logHtml(banner,"End of",name);
+        this.metrics.prepareTimeMs += metrics.prepTotal;
+        this.metrics.stepTimeMs += metrics.stepTotal;
+        this.metrics.stmtCount += metrics.stmtCount;
+        this.metrics.strcpyMs += metrics.strcpy;
+        this.metrics.sqlBytes += sql.length;
+      };
+
+      let runner;
+      if('websql'===db.id){
+        const who = this;
+        runner = function(resolve, reject){
+          /* WebSQL cannot execute multiple statements, nor can it execute SQL without
+             an explicit transaction. Thus we have to do some fragile surgery on the
+             input SQL. Since we're only expecting carefully curated inputs, the hope is
+             that this will suffice. PS: it also can't run most SQL functions, e.g. even
+             instr() results in "not authorized". */
+          if('string'!==typeof sql){ // assume TypedArray
+            sql = new TextDecoder().decode(sql);
+          }
+          sql = sql.replace(/-- [^\n]+\n/g,''); // comment lines interfere with our split()
+          const sqls = sql.split(/;+\n/);
+          const rxBegin = /^BEGIN/i, rxCommit = /^COMMIT/i;
+          try {
+            const nextSql = ()=>{
+              let x = sqls.shift();
+              while(sqls.length && !x) x = sqls.shift();
+              return x && x.trim();
+            };
+            const who = this;
+            const transaction = function(tx){
+              try {
+                let s;
+                /* Try to approximate the spirit of the input scripts
+                   by running batches bound by BEGIN/COMMIT statements. */
+                for(s = nextSql(); !!s; s = nextSql()){
+                  if(rxBegin.test(s)) continue;
+                  else if(rxCommit.test(s)) break;
+                  //console.log("websql sql again",sqls.length, s);
+                  ++metrics.stmtCount;
+                  const t = performance.now();
+                  tx.executeSql(s,[], ()=>{}, (t,e)=>{
+                    console.error("WebSQL error",e,"SQL =",s);
+                    who.logErr(e.message);
+                    //throw e;
+                    return false;
+                  });
+                  metrics.stepTotal += performance.now() - t;
+                }
+              }catch(e){
+                who.logErr("transaction():",e.message);
+                throw e;
+              }
+            };
+            const n = sqls.length;
+            const nextBatch = function(){
+              if(sqls.length){
+                console.log("websql sqls.length",sqls.length,'of',n);
+                db.handle.transaction(transaction, (e)=>{
+                  who.logErr("Ignoring and contiuing:",e.message)
+                  //reject(e);
+                  return false;
+                }, nextBatch);
+              }else{
+                resolve(who);
+              }
+            };
+            metrics.evalSqlStart = performance.now();
+            nextBatch();
+          }catch(e){
+            //this.gotErr = e;
+            console.error("websql error:",e);
+            who.logErr(e.message);
+            //reject(e);
+          }
+        }.bind(this);
+      }else{/*sqlite3 db...*/
+        runner = function(resolve, reject){
+          ++this.metrics.fileCount;
+          metrics.evalSqlStart = performance.now();
+          const stack = wasm.scopedAllocPush();
+          try {
+            let t;
+            let sqlByteLen = sql.byteLength;
+            const [ppStmt, pzTail] = wasm.scopedAllocPtr(2);
+            t = performance.now();
+            pSqlBegin = wasm.scopedAlloc( sqlByteLen + 1/*SQL + NUL*/) || toss("alloc(",sqlByteLen,") failed");
+            metrics.malloc = performance.now() - t;
+            metrics.byteLength = sqlByteLen;
+            let pSql = pSqlBegin;
+            const pSqlEnd = pSqlBegin + sqlByteLen;
+            t = performance.now();
+            wasm.heap8().set(sql, pSql);
+            wasm.poke(pSql + sqlByteLen, 0);
+            metrics.strcpy = performance.now() - t;
+            let breaker = 0;
+            while(pSql && wasm.peek(pSql,'i8')){
+              wasm.pokePtr(ppStmt, 0);
+              wasm.pokePtr(pzTail, 0);
+              t = performance.now();
+              let rc = capi.sqlite3_prepare_v3(
+                db.handle, pSql, sqlByteLen, 0, ppStmt, pzTail
+              );
+              metrics.prepTotal += performance.now() - t;
+              checkSqliteRc(db.handle, rc);
+              pStmt = wasm.peekPtr(ppStmt);
+              pSql = wasm.peekPtr(pzTail);
+              sqlByteLen = pSqlEnd - pSql;
+              if(!pStmt) continue/*empty statement*/;
+              ++metrics.stmtCount;
+              t = performance.now();
+              rc = capi.sqlite3_step(pStmt);
+              capi.sqlite3_finalize(pStmt);
+              pStmt = 0;
+              metrics.stepTotal += performance.now() - t;
+              switch(rc){
+                  case capi.SQLITE_ROW:
+                  case capi.SQLITE_DONE: break;
+                  default: checkSqliteRc(db.handle, rc); toss("Not reached.");
+              }
+            }
+            resolve(this);
+          }catch(e){
+            if(pStmt) capi.sqlite3_finalize(pStmt);
+            //this.gotErr = e;
+            reject(e);
+          }finally{
+            capi.sqlite3_exec(db.handle,"rollback;",0,0,0);
+            wasm.scopedAllocPop(stack);
+          }
+        }.bind(this);
+      }
+      let p;
+      if(1){
+        p = new Promise(function(res,rej){
+          setTimeout(()=>runner(res, rej), 0)/*give UI a chance to output the "running" banner*/;
+        });
+      }else{
+        p = new Promise(runner);
+      }
+      return p.catch(
+        (e)=>this.logErr("Error via execSql("+name+",...):",e.message)
+      ).finally(()=>{
+        endRun();
+        this.blockControls(false);
+      });
+    },
+    
+    clearDb: function(){
+      const db = this.getSelectedDb();
+      if('websql'===db.id){
+        this.logErr("TODO: clear websql db.");
+        return;
+      }
+      if(!db.handle) return;
+      const capi = this.sqlite3, wasm = this.sqlite3.wasm;
+      //const scope = wasm.scopedAllocPush(
+      this.logErr("TODO: clear db");
+    },
+    
+    /**
+       Loads batch-runner.list and populates the selection list from
+       it. Returns a promise which resolves to nothing in particular
+       when it completes. Only intended to be run once at the start
+       of the app.
+     */
+    loadSqlList: async function(){
+      const sel = this.e.selSql;
+      sel.innerHTML = '';
+      this.blockControls(true);
+      const infile = 'batch-runner.list';
+      this.logHtml("Loading list of SQL files:", infile);
+      let txt;
+      try{
+        const r = await fetch(infile);
+        if(404 === r.status){
+          toss("Missing file '"+infile+"'.");
+        }
+        if(!r.ok) toss("Loading",infile,"failed:",r.statusText);
+        txt = await r.text();
+        const warning = E('#warn-list');
+        if(warning) warning.remove();
+      }catch(e){
+        this.logErr(e.message);
+        throw e;
+      }finally{
+        this.blockControls(false);
+      }
+      const list = txt.split(/\n+/);
+      let opt;
+      if(0){
+        opt = document.createElement('option');
+        opt.innerText = "Select file to evaluate...";
+        opt.value = '';
+        opt.disabled = true;
+        opt.selected = true;
+        sel.appendChild(opt);
+      }
+      list.forEach(function(fn){
+        if(!fn) return;
+        opt = document.createElement('option');
+        opt.value = fn;
+        opt.innerText = fn.split('/').pop();
+        sel.appendChild(opt);
+      });
+      this.logHtml("Loaded",infile);
+    },
+
+    /** Fetch ./fn and return its contents as a Uint8Array. */
+    fetchFile: async function(fn, cacheIt=false){
+      if(cacheIt && this.cache[fn]) return this.cache[fn];
+      this.logHtml("Fetching",fn,"...");
+      let sql;
+      try {
+        const r = await fetch(fn);
+        if(!r.ok) toss("Fetch failed:",r.statusText);
+        sql = new Uint8Array(await r.arrayBuffer());
+      }catch(e){
+        this.logErr(e.message);
+        throw e;
+      }
+      this.logHtml("Fetched",sql.length,"bytes from",fn);
+      if(cacheIt) this.cache[fn] = sql;
+      return sql;
+    }/*fetchFile()*/,
+
+    /** Disable or enable certain UI controls. */
+    blockControls: function(disable){
+      //document.querySelectorAll('.disable-during-eval').forEach((e)=>e.disabled = disable);
+      this.e.fsToolbar.disabled = disable;
+    },
+
+    /**
+       Converts this.metrics() to a form which is suitable for easy conversion to
+       CSV. It returns an array of arrays. The first sub-array is the column names.
+       The 2nd and subsequent are the values, one per test file (only the most recent
+       metrics are kept for any given file).
+    */
+    metricsToArrays: function(){
+      const rc = [];
+      Object.keys(this.dbs).sort().forEach((k)=>{
+        const d = this.dbs[k];
+        const m = d.metrics;
+        delete m.evalSqlStart;
+        delete m.evalSqlEnd;
+        const mk = Object.keys(m).sort();
+        if(!rc.length){
+          rc.push(['db', ...mk]);
+        }
+        const row = [k.split('/').pop()/*remove dir prefix from filename*/];
+        rc.push(row);
+        row.push(...mk.map((kk)=>m[kk]));
+      });
+      return rc;
+    },
+
+    metricsToBlob: function(colSeparator='\t'){
+      const ar = [], ma = this.metricsToArrays();
+      if(!ma.length){
+        this.logErr("Metrics are empty. Run something.");
+        return;
+      }
+      ma.forEach(function(row){
+        ar.push(row.join(colSeparator),'\n');
+      });
+      return new Blob(ar);
+    },
+
+    downloadMetrics: function(){
+      const b = this.metricsToBlob();
+      if(!b) return;
+      const url = URL.createObjectURL(b);
+      const a = document.createElement('a');
+      a.href = url;
+      a.download = 'batch-runner-js-'+((new Date().getTime()/1000) | 0)+'.csv';
+      this.logHtml("Triggering download of",a.download);
+      document.body.appendChild(a);
+      a.click();
+      setTimeout(()=>{
+        document.body.removeChild(a);
+        URL.revokeObjectURL(url);
+      }, 500);
+    },
+
+    /**
+       Fetch file fn and eval it as an SQL blob. This is an async
+       operation and returns a Promise which resolves to this
+       object on success.
+    */
+    evalFile: async function(fn){
+      const sql = await this.fetchFile(fn);
+      return this.execSql(fn,sql);
+    }/*evalFile()*/,
+
+    /**
+       Clears all DB tables in all _opened_ databases. Because of
+       disparities between backends, we cannot simply "unlink" the
+       databases to clean them up.
+    */
+    clearStorage: function(onlySelectedDb=false){
+      const list = onlySelectedDb
+            ? [('boolean'===typeof onlySelectedDb)
+                ? this.dbs[this.e.selImpl.value]
+                : onlySelectedDb]
+            : Object.values(this.dbs);
+      for(let db of list){
+        if(db && db.handle){
+          this.logHtml("Clearing db",db.id);
+          db.clear();
+        }
+      }
+    },
+
+    /**
+       Fetches the handle of the db associated with
+       this.e.selImpl.value, opening it if needed.
+    */
+    getSelectedDb: function(){
+      if(!this.dbs.memdb){
+        for(let opt of this.e.selImpl.options){
+          const d = this.dbs[opt.value] = Object.create(null);
+          d.id = opt.value;
+          switch(d.id){
+              case 'virtualfs':
+                d.filename = 'file:/virtualfs.sqlite3?vfs=unix-none';
+                break;
+              case 'memdb':
+                d.filename = ':memory:';
+                break;
+              case 'wasmfs-opfs':
+                d.filename = 'file:'+(
+                  this.sqlite3.capi.sqlite3_wasmfs_opfs_dir()
+                )+'/wasmfs-opfs.sqlite3b';
+                break;
+              case 'websql':
+                d.filename = 'websql.db';
+                break;
+              default:
+                this.logErr("Unhandled db selection option (see details in the console).",opt);
+                toss("Unhandled db init option");
+          }
+        }
+      }/*first-time init*/
+      const dbId = this.e.selImpl.value;
+      const d = this.dbs[dbId];
+      if(d.handle) return d;
+      if('websql' === dbId){
+        d.handle = self.openDatabase('batch-runner', '0.1', 'foo', 1024 * 1024 * 50);
+        d.clear = ()=>clearDbWebSQL(d);
+        d.handle.transaction(function(tx){
+          tx.executeSql("PRAGMA cache_size="+cacheSize);
+          App.logHtml(dbId,"cache_size =",cacheSize);
+        });
+      }else{
+        const capi = this.sqlite3.capi, wasm = this.sqlite3.wasm;
+        const stack = wasm.scopedAllocPush();
+        let pDb = 0;
+        try{
+          const oFlags = capi.SQLITE_OPEN_CREATE | capi.SQLITE_OPEN_READWRITE;
+          const ppDb = wasm.scopedAllocPtr();
+          const rc = capi.sqlite3_open_v2(d.filename, ppDb, oFlags, null);
+          pDb = wasm.peekPtr(ppDb)
+          if(rc) toss("sqlite3_open_v2() failed with code",rc);
+          capi.sqlite3_exec(pDb, "PRAGMA cache_size="+cacheSize, 0, 0, 0);
+          this.logHtml(dbId,"cache_size =",cacheSize);
+        }catch(e){
+          if(pDb) capi.sqlite3_close_v2(pDb);
+        }finally{
+          wasm.scopedAllocPop(stack);
+        }
+        d.handle = pDb;
+        d.clear = ()=>clearDbSqlite(d);
+      }
+      d.clear();
+      this.logHtml("Opened db:",dbId,d.filename);
+      console.log("db =",d);
+      return d;
+    },
+
+    run: function(sqlite3){
+      delete this.run;
+      this.sqlite3 = sqlite3;
+      const capi = sqlite3.capi, wasm = sqlite3.wasm;
+      this.logHtml("Loaded module:",capi.sqlite3_libversion(), capi.sqlite3_sourceid());
+      this.logHtml("WASM heap size =",wasm.heap8().length);
+      this.loadSqlList();
+      if(capi.sqlite3_wasmfs_opfs_dir()){
+        E('#warn-opfs').classList.remove('hidden');
+      }else{
+        E('#warn-opfs').remove();
+        E('option[value=wasmfs-opfs]').disabled = true;
+      }
+      if('function' === typeof self.openDatabase){
+        E('#warn-websql').classList.remove('hidden');
+      }else{
+        E('option[value=websql]').disabled = true;
+        E('#warn-websql').remove();
+      }
+      const who = this;
+      if(this.e.cbReverseLog.checked){
+        this.e.output.classList.add('reverse');
+      }
+      this.e.cbReverseLog.addEventListener('change', function(){
+        who.e.output.classList[this.checked ? 'add' : 'remove']('reverse');
+      }, false);
+      this.e.btnClear.addEventListener('click', ()=>this.cls(), false);
+      this.e.btnRun.addEventListener('click', function(){
+        if(!who.e.selSql.value) return;
+        who.evalFile(who.e.selSql.value);
+      }, false);
+      this.e.btnRunNext.addEventListener('click', function(){
+        ++who.e.selSql.selectedIndex;
+        if(!who.e.selSql.value) return;
+        who.evalFile(who.e.selSql.value);
+      }, false);
+      this.e.btnReset.addEventListener('click', function(){
+        who.clearStorage(true);
+      }, false);
+      this.e.btnExportMetrics.addEventListener('click', function(){
+        who.logHtml2('warning',"Triggering download of metrics CSV. Check your downloads folder.");
+        who.downloadMetrics();
+        //const m = who.metricsToArrays();
+        //console.log("Metrics:",who.metrics, m);
+      });
+      this.e.selImpl.addEventListener('change', function(){
+        who.getSelectedDb();
+      });
+      this.e.btnRunRemaining.addEventListener('click', async function(){
+        let v = who.e.selSql.value;
+        const timeStart = performance.now();
+        while(v){
+          await who.evalFile(v);
+          if(who.gotError){
+            who.logErr("Error handling script",v,":",who.gotError.message);
+            break;
+          }
+          ++who.e.selSql.selectedIndex;
+          v = who.e.selSql.value;
+        }
+        const timeTotal = performance.now() - timeStart;
+        who.logHtml("Run-remaining time:",timeTotal,"ms ("+(timeTotal/1000/60)+" minute(s))");
+        who.clearStorage();
+        App.metrics.runTimeMs = timeTotal;
+        who.logHtml("Total metrics:",JSON.stringify(App.metrics,undefined,'  '));
+      }, false);
+    }/*run()*/
+  }/*App*/;
+
+  self.sqlite3TestModule.initSqlite3().then(function(sqlite3_){
+    sqlite3 = sqlite3_;
+    self.App = App /* only to facilitate dev console access */;
+    App.run(sqlite3);
+  });
+})();
diff --git a/ext/wasm/c-pp.c b/ext/wasm/c-pp.c
new file mode 100644
index 0000000000000000000000000000000000000000..c67881dd3ead508b00e6bbf00a522b1f8f92416c
--- /dev/null
+++ b/ext/wasm/c-pp.c
@@ -0,0 +1,1531 @@
+/*
+** 2022-11-12:
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**  * May you do good and not evil.
+**  * May you find forgiveness for yourself and forgive others.
+**  * May you share freely, never taking more than you give.
+**
+************************************************************************
+**
+** The C-minus Preprocessor: a truly minimal C-like preprocessor.
+** Why? Because C preprocessors _can_ process non-C code but generally make
+** quite a mess of it. The purpose of this application is an extremely
+** minimal preprocessor with only the most basic functionality of a C
+** preprocessor, namely:
+**
+** - Limited `#if`, where its one argument is a macro name which
+**   resolves to true if it's defined, false if it's not. Likewise,
+**   `#ifnot` is the inverse. Includes `#else` and `#elif` and
+**   `#elifnot`. Such chains are terminated with `#endif`.
+**
+** - `#define` accepts one or more arguments, the names of
+**   macros. Each one is implicitly true.
+**
+** - `#undef` undefine one or more macros.
+**
+** - `#error` treats the rest of the line as a fatal error message.
+**
+** - `#include` treats its argument as a filename token (NOT quoted,
+**   though support for quoting may be added later). Some effort is
+**   made to prevent recursive inclusion, but that support is both
+**   somewhat fragile and possibly completely unnecessary.
+**
+** - `#pragma` is in place for adding "meta-commands", but it does not
+**   yet have any concrete list of documented commands.
+**
+*  - `#stderr` outputs its file name, line number, and the remaininder
+**   of that line to stderr.
+**
+** - `#//` acts as a single-line comment, noting that there must be as
+**   space after the `//` part because `//` is (despite appearances)
+**   parsed like a keyword.
+**
+** Note that "#" above is symbolic. The keyword delimiter is
+** configurable and defaults to "##". Define CMPP_DEFAULT_DELIM to a
+** string when compiling to define the default at build-time.
+**
+** This preprocessor does no expansion of content except within the
+** bounds of its `#keywords`.
+**
+** Design note: this code makes use of sqlite3. Though not _strictly_
+** needed in order to implement it, this tool was specifically created
+** for use with the sqlite3 project's own JavaScript code, so there's
+** no reason not to make use of it to do some of the heavy lifting. It
+** does not require any cutting-edge sqlite3 features and should be
+** usable with any version which supports `WITHOUT ROWID`.
+**
+** Author(s):
+**
+** - Stephan Beal <https://wanderinghorse.net/home/stephan/>
+*/
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+#include <stdarg.h>
+#include <assert.h>
+#include <ctype.h>
+
+#include "sqlite3.h"
+
+#if defined(_WIN32) || defined(WIN32)
+#  include <io.h>
+#  include <fcntl.h>
+#  ifndef access
+#    define access(f,m) _access((f),(m))
+#  endif
+#else
+#  include <unistd.h>
+#endif
+
+#ifndef CMPP_DEFAULT_DELIM
+#define CMPP_DEFAULT_DELIM "##"
+#endif
+
+#if 1
+#  define CMPP_NORETURN __attribute__((noreturn))
+#else
+#  define CMPP_NORETURN
+#endif
+
+/* Fatally exits the app with the given printf-style message. */
+static CMPP_NORETURN void fatalv(char const *zFmt, va_list);
+static CMPP_NORETURN void fatal(char const *zFmt, ...);
+
+/** Proxy for free(), for symmetry with cmpp_realloc(). */
+static void cmpp_free(void *p);
+/** A realloc() proxy which dies fatally on allocation error. */
+static void * cmpp_realloc(void * p, unsigned n);
+#if 0
+/** A malloc() proxy which dies fatally on allocation error. */
+static void * cmpp_malloc(unsigned n);
+#endif
+
+/*
+** If p is stdin or stderr then this is a no-op, else it is a
+** proxy for fclose(). This is a no-op if p is NULL.
+*/
+static void FILE_close(FILE *p);
+/*
+** Works like fopen() but accepts the special name "-" to mean either
+** stdin (if zMode indicates a real-only mode) or stdout. Fails
+** fatally on error.
+*/
+static FILE * FILE_open(char const *zName, const char * zMode);
+/*
+** Reads the entire contents of the given file, allocating it in a
+** buffer which gets assigned to `*pOut`. `*nOut` gets assigned the
+** length of the output buffer. Fails fatally on error.
+*/
+static void FILE_slurp(FILE *pFile, unsigned char **pOut,
+                       unsigned * nOut);
+
+/*
+** Intended to be passed an sqlite3 result code. If it's non-0
+** then it emits a fatal error message which contains both the
+** given string and the sqlite3_errmsg() from the application's
+** database instance.
+*/
+static void db_affirm_rc(int rc, const char * zMsg);
+
+/*
+** Proxy for sqlite3_str_finish() which fails fatally if that
+** routine returns NULL.
+*/
+static char * db_str_finish(sqlite3_str *s, int * n);
+/*
+** Proxy for sqlite3_str_new() which fails fatally if that
+** routine returns NULL.
+*/
+static sqlite3_str * db_str_new(void);
+
+/* Proxy for sqlite3_finalize(). */
+static void db_finalize(sqlite3_stmt *pStmt);
+/*
+** Proxy for sqlite3_step() which fails fatally if the result
+** is anything other than SQLITE_ROW or SQLITE_DONE.
+*/
+static int db_step(sqlite3_stmt *pStmt);
+/*
+** Proxy for sqlite3_bind_int() which fails fatally on error.
+*/
+static void db_bind_int(sqlite3_stmt *pStmt, int col, int val);
+#if 0
+/*
+** Proxy for sqlite3_bind_null() which fails fatally on error.
+*/
+static void db_bind_null(sqlite3_stmt *pStmt, int col);
+#endif
+/*
+** Proxy for sqlite3_bind_text() which fails fatally on error.
+*/
+static void db_bind_text(sqlite3_stmt *pStmt, int col, const char * zStr);
+/*
+** Proxy for sqlite3_bind_text() which fails fatally on error.
+*/
+static void db_bind_textn(sqlite3_stmt *pStmt, int col, const char * zStr, int len);
+#if 0
+/*
+** Proxy for sqlite3_bind_text() which fails fatally on error. It uses
+** sqlite3_str_vappendf() so supports all of its formatting options.
+*/
+static void db_bind_textv(sqlite3_stmt *pStmt, int col, const char * zFmt, ...);
+#endif
+/*
+** Proxy for sqlite3_free(), to be passed any memory which is allocated
+** by sqlite3_malloc().
+*/
+static void db_free(void *m);
+/*
+** Adds the given `#define` macro name to the list of macros, ignoring
+** any duplicates. Fails fatally on error.
+*/
+static void db_define_add(const char * zKey);
+/*
+** Returns true if the given key is already in the `#define` list,
+** else false. Fails fatally on db error.
+*/
+static int db_define_has(const char * zName);
+/*
+** Removes the given `#define` macro name from the list of
+** macros. Fails fatally on error.
+*/
+static void db_define_rm(const char * zKey);
+/*
+** Adds the given filename to the list of being-`#include`d files,
+** using the given source file name and line number of error reporting
+** purposes. If recursion is later detected.
+*/
+static void db_including_add(const char * zKey, const char * zSrc, int srcLine);
+/*
+** Adds the given dir to the list of includes. They are checked in the
+** order they are added.
+*/
+static void db_include_dir_add(const char * zKey);
+/*
+** Returns a resolved path of PREFIX+'/'+zKey, where PREFIX is one of
+** the `#include` dirs (db_include_dir_add()). If no file match is
+** found, NULL is returned. Memory must eventually be passed to
+** db_free() to free it.
+*/
+static char * db_include_search(const char * zKey);
+/*
+** Removes the given key from the `#include` list.
+*/
+static void db_include_rm(const char * zKey);
+/*
+** A proxy for sqlite3_prepare() which fails fatally on error.
+*/
+static void db_prepare(sqlite3_stmt **pStmt, const char * zSql, ...);
+
+/*
+** Opens the given file and processes its contents as c-pp, sending
+** all output to the global c-pp output channel. Fails fatally on
+** error.
+*/
+static void cmpp_process_file(const char * zName);
+
+/*
+** Returns the number newline characters between the given starting
+** point and inclusive ending point. Results are undefined if zFrom is
+** greater than zTo.
+*/
+static unsigned count_lines(unsigned char const * zFrom,
+                            unsigned char const *zTo);
+
+/*
+** Wrapper around a FILE handle.
+*/
+struct FileWrapper {
+  /* File's name. */
+  char const *zName;
+  /* FILE handle. */
+  FILE * pFile;
+  /* Where FileWrapper_slurp() stores the file's contents. */
+  unsigned char * zContent;
+  /* Size of this->zContent, as set by FileWrapper_slurp(). */
+  unsigned nContent;
+};
+typedef struct FileWrapper FileWrapper;
+#define FileWrapper_empty_m {0,0,0,0}
+static const FileWrapper FileWrapper_empty = FileWrapper_empty_m;
+
+/* Proxy for FILE_close(). */
+static void FileWrapper_close(FileWrapper * p);
+/* Proxy for FILE_open(). */
+static void FileWrapper_open(FileWrapper * p, const char * zName, const char *zMode);
+/* Proxy for FILE_slurp(). */
+static void FileWrapper_slurp(FileWrapper * p);
+
+/*
+** Outputs a printf()-formatted message to stderr.
+*/
+static void g_stderr(char const *zFmt, ...);
+/*
+** Outputs a printf()-formatted message to stderr.
+*/
+static void g_stderrv(char const *zFmt, va_list);
+#define g_debug(lvl,pfexpr)                                          \
+  if(lvl<=g.doDebug) g_stderr("%s @ %s:%d: ",g.zArgv0,__FILE__,__LINE__); \
+  if(lvl<=g.doDebug) g_stderr pfexpr
+
+void fatalv(char const *zFmt, va_list va){
+  if(zFmt && *zFmt){
+    vfprintf(stderr, zFmt, va);
+  }
+  fputc('\n', stderr);
+  exit(1);
+}
+
+void fatal(char const *zFmt, ...){
+  va_list va;
+  va_start(va, zFmt);
+  fatalv(zFmt, va);
+  va_end(va);
+}
+
+void cmpp_free(void *p){
+  free(p);
+}
+
+void * cmpp_realloc(void * p, unsigned n){
+  void * const rc = realloc(p, n);
+  if(!rc) fatal("realloc(P,%u) failed", n);
+  return rc;
+}
+
+#if 0
+void * cmpp_malloc(unsigned n){
+  void * const rc = malloc(n);
+  if(!rc) fatal("malloc(%u) failed", n);
+  return rc;
+}
+#endif
+
+FILE * FILE_open(char const *zName, const char * zMode){
+  FILE * p;
+  if('-'==zName[0] && 0==zName[1]){
+    p = strstr(zMode,"w") ? stdout : stdin;
+  }else{
+    p = fopen(zName, zMode);
+    if(!p) fatal("Cannot open file [%s] with mode [%s]", zName, zMode);
+  }
+  return p;
+}
+
+void FILE_close(FILE *p){
+  if(p && p!=stdout && p!=stderr){
+    fclose(p);
+  }
+}
+
+void FILE_slurp(FILE *pFile, unsigned char **pOut,
+                unsigned * nOut){
+  unsigned char zBuf[1024 * 8];
+  unsigned char * pDest = 0;
+  unsigned nAlloc = 0;
+  unsigned nOff = 0;
+  /* Note that this needs to be able to work on non-seekable streams,
+  ** thus we read in chunks instead of doing a single alloc and
+  ** filling it in one go. */
+  while( !feof(pFile) ){
+    size_t const n = fread(zBuf, 1, sizeof(zBuf), pFile);
+    if(n>0){
+      if(nAlloc < nOff + n + 1){
+        nAlloc = nOff + n + 1;
+        pDest = cmpp_realloc(pDest, nAlloc);
+      }
+      memcpy(pDest + nOff, zBuf, n);
+      nOff += n;
+    }
+  }
+  if(pDest) pDest[nOff] = 0;
+  *pOut = pDest;
+  *nOut = nOff;
+}
+
+void FileWrapper_close(FileWrapper * p){
+  if(p->pFile) FILE_close(p->pFile);
+  if(p->zContent) cmpp_free(p->zContent);
+  *p = FileWrapper_empty;
+}
+
+void FileWrapper_open(FileWrapper * p, const char * zName,
+                      const char * zMode){
+  FileWrapper_close(p);
+  p->pFile = FILE_open(zName, zMode);
+  p->zName = zName;
+}
+
+void FileWrapper_slurp(FileWrapper * p){
+  assert(!p->zContent);
+  assert(p->pFile);
+  FILE_slurp(p->pFile, &p->zContent, &p->nContent);
+}
+
+unsigned count_lines(unsigned char const * zFrom, unsigned char const *zTo){
+  unsigned ln = 0;
+  unsigned char const *zPos = zFrom;
+  assert(zFrom && zTo);
+  assert(zFrom <= zTo);
+  for(; zPos < zTo; ++zPos){
+    switch(*zPos){
+      case (unsigned)'\n': ++ln; break;
+      default: break;
+    }
+  }
+  return ln;
+}
+
+enum CmppParseState {
+TS_Start = 1,
+TS_If,
+TS_IfPassed,
+TS_Else,
+TS_Error
+};
+typedef enum CmppParseState CmppParseState;
+enum CmppTokenType {
+TT_Invalid = 0,
+TT_Comment,
+TT_Define,
+TT_Elif,
+TT_ElifNot,
+TT_Else,
+TT_EndIf,
+TT_Error,
+TT_If,
+TT_IfNot,
+TT_Include,
+TT_Line,
+TT_Pragma,
+TT_Stderr,
+TT_Undef
+};
+typedef enum CmppTokenType CmppTokenType;
+
+struct CmppToken {
+  CmppTokenType ttype;
+  /* Line number of this token in the source file. */
+  unsigned lineNo;
+  /* Start of the token. */
+  unsigned char const * zBegin;
+  /* One-past-the-end byte of the token. */
+  unsigned char const * zEnd;
+};
+typedef struct CmppToken CmppToken;
+#define CmppToken_empty_m {TT_Invalid,0,0,0}
+static const CmppToken CmppToken_empty = CmppToken_empty_m;
+
+/*
+** CmppLevel represents one "level" of tokenization, starting at the
+** top of the main input, incrementing once for each level of `#if`,
+** and decrementing for each `#endif`.
+*/
+typedef struct CmppLevel CmppLevel;
+struct CmppLevel {
+  unsigned short flags;
+  /*
+  ** Used for controlling which parts of an if/elif/...endif chain
+  ** should get output.
+  */
+  unsigned short skipLevel;
+  /* The token which started this level (an 'if' or 'ifnot'). */
+  CmppToken token;
+  CmppParseState pstate;
+};
+#define CmppLevel_empty_m {0U,0U,CmppToken_empty_m,TS_Start}
+static const CmppLevel CmppLevel_empty = CmppLevel_empty_m;
+enum CmppLevel_Flags {
+/* Max depth of nested `#if` constructs in a single tokenizer. */
+CmppLevel_Max = 10,
+/* Max number of keyword arguments. */
+CmppArgs_Max = 10,
+/* Flag indicating that output for a CmpLevel should be elided. */
+CmppLevel_F_ELIDE = 0x01,
+/*
+** Mask of CmppLevel::flags which are inherited when CmppLevel_push()
+** is used.
+*/
+CmppLevel_F_INHERIT_MASK = 0x01
+};
+
+typedef struct CmppTokenizer CmppTokenizer;
+typedef struct CmppKeyword CmppKeyword;
+typedef void (*cmpp_keyword_f)(CmppKeyword const * pKw, CmppTokenizer * t);
+struct CmppKeyword {
+  const char *zName;
+  unsigned nName;
+  int bTokenize;
+  CmppTokenType ttype;
+  cmpp_keyword_f xCall;
+};
+
+static CmppKeyword const * CmppKeyword_search(const char *zName);
+static void cmpp_process_keyword(CmppTokenizer * const t);
+
+/*
+** Tokenizer for c-pp input files.
+*/
+struct CmppTokenizer {
+  const char * zName;            /* Input (file) name for error reporting */
+  unsigned const char * zBegin;  /* start of input */
+  unsigned const char * zEnd;    /* one-after-the-end of input */
+  unsigned const char * zAnchor; /* start of input or end point of
+                                    previous token */
+  unsigned const char * zPos;    /* current position */
+  unsigned int lineNo;           /* line # of current pos */
+  CmppParseState pstate;
+  CmppToken token;               /* current token result */
+  struct {
+    unsigned ndx;
+    CmppLevel stack[CmppLevel_Max];
+  } level;
+  /* Args for use in cmpp_keyword_f() impls. */
+  struct {
+    CmppKeyword const * pKw;
+    int argc;
+    const unsigned char * argv[CmppArgs_Max];
+    unsigned char lineBuf[1024];
+  } args;
+};
+#define CT_level(t) (t)->level.stack[(t)->level.ndx]
+#define CT_pstate(t) CT_level(t).pstate
+#define CT_skipLevel(t) CT_level(t).skipLevel
+#define CLvl_skip(lvl) ((lvl)->skipLevel || ((lvl)->flags & CmppLevel_F_ELIDE))
+#define CT_skip(t) CLvl_skip(&CT_level(t))
+#define CmppTokenizer_empty_m {                 \
+    0,0,0,0,0,1U/*lineNo*/,                     \
+    TS_Start,                                 \
+    CmppToken_empty_m,                        \
+    {/*level*/0U,{CmppLevel_empty_m}},       \
+    {/*args*/0,0,{0},{0}}                \
+  }
+static const CmppTokenizer CmppTokenizer_empty = CmppTokenizer_empty_m;
+
+static void cmpp_t_out(CmppTokenizer * t, void const *z, unsigned int n);
+/*static void cmpp_t_outf(CmppTokenizer * t, char const *zFmt, ...);*/
+
+/*
+** Pushes a new level into the given tokenizer. Fails fatally if
+** it's too deep.
+*/
+static void CmppLevel_push(CmppTokenizer * const t);
+/*
+** Pops a level from the tokenizer. Fails fatally if the top
+** level is popped.
+*/
+static void CmppLevel_pop(CmppTokenizer * const t);
+/*
+** Returns the current level object.
+*/
+static CmppLevel * CmppLevel_get(CmppTokenizer * const t);
+
+/*
+** Global app state singleton. */
+static struct Global {
+  /* main()'s argv[0]. */
+  const char * zArgv0;
+  /*
+  ** Bytes of the keyword delimiter/prefix. Owned
+  ** elsewhere.
+  */
+  const char * zDelim;
+  /* Byte length of this->zDelim. */
+  unsigned short nDelim;
+  /* If true, enables certain debugging output. */
+  int doDebug;
+  /* App's db instance. */
+  sqlite3 * db;
+  /* Output channel. */
+  FileWrapper out;
+  struct {
+    sqlite3_stmt * defIns;
+    sqlite3_stmt * defDel;
+    sqlite3_stmt * defHas;
+    sqlite3_stmt * inclIns;
+    sqlite3_stmt * inclDel;
+    sqlite3_stmt * inclHas;
+    sqlite3_stmt * inclPathAdd;
+    sqlite3_stmt * inclSearch;
+  } stmt;
+} g = {
+"?",
+CMPP_DEFAULT_DELIM/*zDelim*/,
+(unsigned short) sizeof(CMPP_DEFAULT_DELIM)-1/*nDelim*/,
+0/*doDebug*/,
+0/*db*/,
+FileWrapper_empty_m/*out*/,
+{/*stmt*/
+  0/*defIns*/, 0/*defDel*/, 0/*defHas*/,
+  0/*inclIns*/, 0/*inclDel*/, 0/*inclHas*/,
+  0/*inclPathAdd*/
+}
+};
+
+
+#if 0
+/*
+** Outputs a printf()-formatted message to c-pp's global output
+** channel.
+*/
+static void g_outf(char const *zFmt, ...);
+void g_outf(char const *zFmt, ...){
+  va_list va;
+  va_start(va, zFmt);
+  vfprintf(g.out.pFile, zFmt, va);
+  va_end(va);
+}
+#endif
+
+#if 0
+/* Outputs n bytes from z to c-pp's global output channel. */
+static void g_out(void const *z, unsigned int n);
+void g_out(void const *z, unsigned int n){
+  if(1!=fwrite(z, n, 1, g.out.pFile)){
+    int const err = errno;
+    fatal("fwrite() output failed with errno #%d", err);
+  }
+}
+#endif
+
+void g_stderrv(char const *zFmt, va_list va){
+  vfprintf(stderr, zFmt, va);
+}
+
+void g_stderr(char const *zFmt, ...){
+  va_list va;
+  va_start(va, zFmt);
+  g_stderrv(zFmt, va);
+  va_end(va);
+}
+
+void cmpp_t_out(CmppTokenizer * t, void const *z, unsigned int n){
+  g_debug(3,("CT_skipLevel() ?= %d\n",CT_skipLevel(t)));
+  g_debug(3,("CT_skip() ?= %d\n",CT_skip(t)));
+  if(!CT_skip(t)){
+    if(1!=fwrite(z, n, 1, g.out.pFile)){
+      int const err = errno;
+      fatal("fwrite() output failed with errno #%d", err);
+    }
+  }
+}
+
+void CmppLevel_push(CmppTokenizer * const t){
+  CmppLevel * pPrev;
+  CmppLevel * p;
+  if(t->level.ndx+1 == (unsigned)CmppLevel_Max){
+    fatal("%sif nesting level is too deep. Max=%d\n",
+          g.zDelim, CmppLevel_Max);
+  }
+  pPrev = &CT_level(t);
+  g_debug(3,("push from tokenizer level=%u flags=%04x\n", t->level.ndx, pPrev->flags));
+  p = &t->level.stack[++t->level.ndx];
+  *p = CmppLevel_empty;
+  p->token = t->token;
+  p->flags = (CmppLevel_F_INHERIT_MASK & pPrev->flags);
+  if(CLvl_skip(pPrev)) p->flags |= CmppLevel_F_ELIDE;
+  g_debug(3,("push to tokenizer level=%u flags=%04x\n", t->level.ndx, p->flags));
+}
+
+void CmppLevel_pop(CmppTokenizer * const t){
+  if(!t->level.ndx){
+    fatal("Internal error: CmppLevel_pop() at the top of the stack");
+  }
+  g_debug(3,("pop from tokenizer level=%u, flags=%04x skipLevel?=%d\n", t->level.ndx,
+             t->level.stack[t->level.ndx].flags, CT_skipLevel(t)));
+  g_debug(3,("CT_skipLevel() ?= %d\n",CT_skipLevel(t)));
+  g_debug(3,("CT_skip() ?= %d\n",CT_skip(t)));
+  t->level.stack[t->level.ndx--] = CmppLevel_empty;
+  g_debug(3,("pop to tokenizer level=%u, flags=%04x\n", t->level.ndx,
+             t->level.stack[t->level.ndx].flags));
+  g_debug(3,("CT_skipLevel() ?= %d\n",CT_skipLevel(t)));
+  g_debug(3,("CT_skip() ?= %d\n",CT_skip(t)));
+}
+
+CmppLevel * CmppLevel_get(CmppTokenizer * const t){
+  return &t->level.stack[t->level.ndx];
+}
+
+
+void db_affirm_rc(int rc, const char * zMsg){
+  if(rc){
+    fatal("Db error #%d %s: %s", rc, zMsg, sqlite3_errmsg(g.db));
+  }
+}
+
+void db_finalize(sqlite3_stmt *pStmt){
+  sqlite3_finalize(pStmt);
+}
+
+int db_step(sqlite3_stmt *pStmt){
+  int const rc = sqlite3_step(pStmt);
+  if(SQLITE_ROW!=rc && SQLITE_DONE!=rc){
+    db_affirm_rc(rc, "from db_step()");
+  }
+  return rc;
+}
+
+static sqlite3_str * db_str_new(void){
+  sqlite3_str * rc = sqlite3_str_new(g.db);
+  if(!rc) fatal("Alloc failed for sqlite3_str_new()");
+  return rc;
+}
+
+static char * db_str_finish(sqlite3_str *s, int * n){
+  int const rc = sqlite3_str_errcode(s);
+  if(rc) fatal("Error #%d from sqlite3_str_errcode()", rc);
+  if(n) *n = sqlite3_str_length(s);
+  char * z = sqlite3_str_finish(s);
+  if(!z) fatal("Alloc failed for sqlite3_str_new()");
+  return z;
+}
+
+void db_prepare(sqlite3_stmt **pStmt, const char * zSql, ...){
+  int rc;
+  sqlite3_str * str = db_str_new();
+  char * z = 0;
+  int n = 0;
+  va_list va;
+  if(!str) fatal("sqlite3_str_new() failed");
+  va_start(va, zSql);
+  sqlite3_str_vappendf(str, zSql, va);
+  va_end(va);
+  rc = sqlite3_str_errcode(str);
+  if(rc) fatal("sqlite3_str_errcode() = %d", rc);
+  z = db_str_finish(str, &n);
+  rc = sqlite3_prepare_v2(g.db, z, n, pStmt, 0);
+  if(rc) fatal("Error #%d (%s) preparing: %s",
+               rc, sqlite3_errmsg(g.db), z);
+  sqlite3_free(z);
+}
+
+void db_bind_int(sqlite3_stmt *pStmt, int col, int val){
+  int const rc = sqlite3_bind_int(pStmt, col, val);
+  db_affirm_rc(rc,"from db_bind_int()");
+}
+
+#if 0
+void db_bind_null(sqlite3_stmt *pStmt, int col){
+  int const rc = sqlite3_bind_null(pStmt, col);
+  db_affirm_rc(rc,"from db_bind_null()");
+}
+#endif
+
+void db_bind_textn(sqlite3_stmt *pStmt, int col,
+                   const char * zStr, int n){
+  int const rc = zStr
+    ? sqlite3_bind_text(pStmt, col, zStr, n, SQLITE_TRANSIENT)
+    : sqlite3_bind_null(pStmt, col);
+  db_affirm_rc(rc,"from db_bind_textn()");
+}
+
+void db_bind_text(sqlite3_stmt *pStmt, int col,
+                  const char * zStr){
+  db_bind_textn(pStmt, col, zStr, -1);
+}
+
+#if 0
+void db_bind_textv(sqlite3_stmt *pStmt, int col,
+                   const char * zFmt, ...){
+  int rc;
+  sqlite3_str * str = db_str_new();
+  int n = 0;
+  char * z;
+  va_list va;
+  va_start(va,zFmt);
+  sqlite3_str_vappendf(str, zFmt, va);
+  va_end(va);
+  z = db_str_finish(str, &n);
+  rc = sqlite3_bind_text(pStmt, col, z, n, sqlite3_free);
+  db_affirm_rc(rc,"from db_bind_textv()");
+}
+#endif
+
+void db_free(void *m){
+  sqlite3_free(m);
+}
+
+void db_define_add(const char * zKey){
+  int rc;
+  if(!g.stmt.defIns){
+    db_prepare(&g.stmt.defIns,
+               "INSERT OR REPLACE INTO def(k) VALUES(?)");
+  }
+  db_bind_text(g.stmt.defIns, 1, zKey);
+  rc = db_step(g.stmt.defIns);
+  if(SQLITE_DONE != rc){
+    db_affirm_rc(rc, "Stepping INSERT on def");
+  }
+  g_debug(2,("define: %s\n",zKey));
+  sqlite3_reset(g.stmt.defIns);
+}
+
+int db_define_has(const char * zName){
+  int rc;
+  if(!g.stmt.defHas){
+    db_prepare(&g.stmt.defHas, "SELECT 1 FROM def WHERE k=?");
+  }
+  db_bind_text(g.stmt.defHas, 1, zName);
+  rc = db_step(g.stmt.defHas);
+  if(SQLITE_ROW == rc){
+    rc = 1;
+  }else{
+    assert(SQLITE_DONE==rc);
+    rc = 0;
+  }
+  g_debug(1,("defined [%s] ?= %d\n",zName, rc));
+  sqlite3_clear_bindings(g.stmt.defHas);
+  sqlite3_reset(g.stmt.defHas);
+  return rc;
+}
+
+
+void db_define_rm(const char * zKey){
+  int rc;
+  int n = 0;
+  const char *zPos = zKey;
+  if(!g.stmt.defDel){
+    db_prepare(&g.stmt.defDel, "DELETE FROM def WHERE k=?");
+  }
+  for( ; *zPos && '='!=*zPos; ++n, ++zPos) {}
+  db_bind_text(g.stmt.defDel, 1, zKey);
+  rc = db_step(g.stmt.defDel);
+  if(SQLITE_DONE != rc){
+    db_affirm_rc(rc, "Stepping DELETE on def");
+  }
+  g_debug(2,("undefine: %.*s\n",n, zKey));
+  sqlite3_clear_bindings(g.stmt.defDel);
+  sqlite3_reset(g.stmt.defDel);
+}
+
+void db_including_add(const char * zKey, const char * zSrc, int srcLine){
+  int rc;
+  if(!g.stmt.inclIns){
+    db_prepare(&g.stmt.inclIns,
+               "INSERT OR FAIL INTO incl(file,srcFile,srcLine) VALUES(?,?,?)");
+  }
+  db_bind_text(g.stmt.inclIns, 1, zKey);
+  db_bind_text(g.stmt.inclIns, 2, zSrc);
+  db_bind_int(g.stmt.inclIns, 3, srcLine);
+  rc = db_step(g.stmt.inclIns);
+  if(SQLITE_DONE != rc){
+    db_affirm_rc(rc, "Stepping INSERT on incl");
+  }
+  g_debug(2,("inclpath add [%s] from [%s]:%d\n", zKey, zSrc, srcLine));
+  sqlite3_clear_bindings(g.stmt.inclIns);
+  sqlite3_reset(g.stmt.inclIns);
+}
+
+void db_include_rm(const char * zKey){
+  int rc;
+  if(!g.stmt.inclDel){
+    db_prepare(&g.stmt.inclDel, "DELETE FROM incl WHERE file=?");
+  }
+  db_bind_text(g.stmt.inclDel, 1, zKey);
+  rc = db_step(g.stmt.inclDel);
+  if(SQLITE_DONE != rc){
+    db_affirm_rc(rc, "Stepping DELETE on incl");
+  }
+  g_debug(2,("inclpath rm [%s]\n", zKey));
+  sqlite3_clear_bindings(g.stmt.inclDel);
+  sqlite3_reset(g.stmt.inclDel);
+}
+
+char * db_include_search(const char * zKey){
+  char * zName = 0;
+  if(!g.stmt.inclSearch){
+    db_prepare(&g.stmt.inclSearch,
+               "SELECT ?1 fn WHERE fileExists(fn) "
+               "UNION ALL SELECT * FROM ("
+               "SELECT replace(dir||'/'||?1, '//','/') AS fn "
+               "FROM inclpath WHERE fileExists(fn) ORDER BY seq"
+               ")");
+  }
+  db_bind_text(g.stmt.inclSearch, 1, zKey);
+  if(SQLITE_ROW==db_step(g.stmt.inclSearch)){
+    const unsigned char * z = sqlite3_column_text(g.stmt.inclSearch, 0);
+    zName = z ? sqlite3_mprintf("%s", z) : 0;
+    if(!zName) fatal("Alloc failed");
+  }
+  sqlite3_clear_bindings(g.stmt.inclSearch);
+  sqlite3_reset(g.stmt.inclSearch);
+  return zName;
+}
+
+static int db_including_has(const char * zName){
+  int rc;
+  if(!g.stmt.inclHas){
+    db_prepare(&g.stmt.inclHas, "SELECT 1 FROM incl WHERE file=?");
+  }
+  db_bind_text(g.stmt.inclHas, 1, zName);
+  rc = db_step(g.stmt.inclHas);
+  if(SQLITE_ROW == rc){
+    rc = 1;
+  }else{
+    assert(SQLITE_DONE==rc);
+    rc = 0;
+  }
+  g_debug(2,("inclpath has [%s] = %d\n",zName, rc));
+  sqlite3_clear_bindings(g.stmt.inclHas);
+  sqlite3_reset(g.stmt.inclHas);
+  return rc;
+}
+
+#if 0
+/*
+** Fails fatally if the `#include` list contains the given key.
+*/
+static void db_including_check(const char * zKey);
+void db_including_check(const char * zName){
+  if(db_including_has(zName)){
+    fatal("Recursive include detected: %s\n", zName);
+  }
+}
+#endif
+
+void db_include_dir_add(const char * zDir){
+  static int seq = 0;
+  int rc;
+  if(!g.stmt.inclPathAdd){
+    db_prepare(&g.stmt.inclPathAdd,
+               "INSERT OR FAIL INTO inclpath(seq,dir) VALUES(?,?)");
+  }
+  db_bind_int(g.stmt.inclPathAdd, 1, ++seq);
+  db_bind_text(g.stmt.inclPathAdd, 2, zDir);
+  rc = db_step(g.stmt.inclPathAdd);
+  if(SQLITE_DONE != rc){
+    db_affirm_rc(rc, "Stepping INSERT on inclpath");
+  }
+  g_debug(2,("inclpath add #%d: %s\n",seq, zDir));
+  sqlite3_clear_bindings(g.stmt.inclPathAdd);
+  sqlite3_reset(g.stmt.inclPathAdd);
+}
+
+static void cmpp_atexit(void){
+#define FINI(M) if(g.stmt.M) sqlite3_finalize(g.stmt.M)
+  FINI(defIns); FINI(defDel); FINI(defHas);
+  FINI(inclIns); FINI(inclDel); FINI(inclHas);
+  FINI(inclPathAdd); FINI(inclSearch);
+#undef FINI
+  FileWrapper_close(&g.out);
+  if(g.db) sqlite3_close(g.db);
+}
+
+/*
+** sqlite3 UDF which returns true if its argument refers to an
+** accessible file, else false.
+*/
+static void udf_file_exists(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  const char *zName;
+  (void)(argc);  /* Unused parameter */
+  zName = (const char*)sqlite3_value_text(argv[0]);
+  if( zName==0 ) return;
+  sqlite3_result_int(context, 0==access(zName, 0));
+}
+
+/* Initialize g.db, failing fatally on error. */
+static void cmpp_initdb(void){
+  int rc;
+  char * zErr = 0;
+  const char * zSchema =
+    "CREATE TABLE def("
+      "k TEXT PRIMARY KEY NOT NULL"
+    /*"v INTEGER DEFAULT 1"*/
+    ") WITHOUT ROWID;"
+    /* ^^^ defines */
+    "CREATE TABLE incl("
+      "file TEXT PRIMARY KEY NOT NULL,"
+      "srcFile TEXT DEFAULT NULL,"
+      "srcLine INTEGER DEFAULT 0"
+    ") WITHOUT ROWID;"
+    /* ^^^ files currently being included */
+    "CREATE TABLE inclpath("
+      "seq INTEGER UNIQUE, "
+      "dir TEXT PRIMARY KEY NOT NULL ON CONFLICT IGNORE"
+    ")"
+    /* ^^^ include path */
+    ;
+  assert(0==g.db);
+  if(g.db) return;
+  rc = sqlite3_open_v2(":memory:", &g.db, SQLITE_OPEN_READWRITE, 0);
+  if(rc) fatal("Error opening :memory: db.");
+  rc = sqlite3_exec(g.db, zSchema, 0, 0, &zErr);
+  if(rc) fatal("Error initializing database: %s", zErr);
+  rc = sqlite3_create_function(g.db, "fileExists", 1, 
+                               SQLITE_UTF8|SQLITE_DIRECTONLY, 0,
+                               udf_file_exists, 0, 0);
+  db_affirm_rc(rc, "UDF registration failed.");
+}
+
+/*
+** For position zPos, which must be in the half-open range
+** [zBegin,zEnd), returns g.nDelim if it is at the start of a line and
+** starts with g.zDelim, else returns 0.
+*/
+static unsigned short cmpp_is_delim(unsigned char const *zBegin,
+                                    unsigned char const *zEnd,
+                                    unsigned char const *zPos){
+  assert(zEnd>zBegin);
+  assert(zPos<zEnd);
+  assert(zPos>=zBegin);
+  if(zPos>zBegin &&
+     ('\n'!=*(zPos - 1)
+      || ((unsigned)(zEnd - zPos) <= g.nDelim))){
+    return 0;
+  }else if(0==memcmp(zPos, g.zDelim, g.nDelim)){
+    return g.nDelim;
+  }else{
+    return 0;
+  }
+}
+
+/*
+** Scans t to the next keyword line, emitting all input before that
+** which is _not_ a keyword line unless it's elided due to being
+** inside a block which elides its content. Returns 0 if no keyword
+** line was found, in which case the end of the input has been
+** reached, else returns a truthy value and sets up t's state for use
+** with cmpp_process_keyword(), which should then be called.
+*/
+static int cmpp_next_keyword_line(CmppTokenizer * const t){
+  unsigned char const * zStart;
+  unsigned char const * z;
+  CmppToken * const tok = &t->token;
+  unsigned short isDelim = 0;
+
+  assert(t->zBegin);
+  assert(t->zEnd > t->zBegin);
+  if(!t->zPos) t->zPos = t->zBegin;
+  t->zAnchor = t->zPos;
+  zStart = z = t->zPos;
+  *tok = CmppToken_empty;
+  while(z<t->zEnd
+        && 0==(isDelim = cmpp_is_delim(t->zBegin, t->zEnd, z))){
+    ++z;
+  }
+  if(z>zStart){
+    /* We passed up content */
+    cmpp_t_out(t, zStart, (unsigned)(z - zStart));
+  }
+  assert(isDelim==0 || isDelim==g.nDelim);
+  tok->lineNo = t->lineNo += count_lines(zStart, z);
+  if(isDelim){
+    /* Handle backslash-escaped newlines */
+    int isEsc = 0, atEol = 0;
+    tok->zBegin = z+isDelim;
+    for( ++z ; z<t->zEnd && 0==atEol; ++z ){
+      switch((int)*z){
+        case (int)'\\':
+          isEsc = 0==isEsc; break;
+        case (int)'\n':
+          atEol = 0==isEsc;
+          isEsc = 0;
+          ++t->lineNo;
+          break;
+        default:
+          break;
+      }
+    }
+    tok->zEnd = atEol ? z-1 : z;
+    /* Strip leading spaces */
+    while(tok->zBegin < tok->zEnd && isspace((char)(*tok->zBegin))){
+      ++tok->zBegin;
+    }
+    tok->ttype = TT_Line;
+    g_debug(2,("Keyword @ line %u: [[[%.*s]]]\n",
+               tok->lineNo,
+               (int)(tok->zEnd-tok->zBegin), tok->zBegin));
+  }
+  t->zPos = z;
+  if(isDelim){
+    /* Split t->token into arguments for the line's keyword */
+    int i, argc = 0, prevChar = 0;
+    const unsigned tokLen = (unsigned)(tok->zEnd - tok->zBegin);
+    unsigned char * zKwd;
+    unsigned char * zEsc;
+    unsigned char * zz;
+
+    assert(TT_Line==tok->ttype);
+    if((unsigned)sizeof(t->args.lineBuf) < tokLen + 1){
+      fatal("Keyword line is unreasonably long: %.*s",
+            tokLen, tok->zBegin);
+    }else if(!tokLen){
+      fatal("Line #%u has no keyword after delimiter", tok->lineNo);
+    }
+    g_debug(2,("token @ line %u len=%u [[[%.*s]]]\n",
+               tok->lineNo, tokLen, tokLen, tok->zBegin));
+    zKwd = &t->args.lineBuf[0];
+    memcpy(zKwd, tok->zBegin, tokLen);
+    memset(zKwd + tokLen, 0, sizeof(t->args.lineBuf) - tokLen);
+    for( zEsc = 0, zz = zKwd; *zz; ++zz ){
+      /* Convert backslash-escaped newlines to whitespace */
+      switch((int)*zz){
+        case (int)'\\':
+          if(zEsc) zEsc = 0;
+          else zEsc = zz;
+          break;
+        case (int)'\n':
+          assert(zEsc && "Should not have an unescaped newline?");
+          if(zEsc==zz-1){
+            *zEsc = (unsigned char)' ';
+            /* FIXME?: memmove() lnBuf content one byte to the left here
+            ** to collapse backslash and newline into a single
+            ** byte. Also consider collapsing all leading space on the
+            ** next line. */
+          }
+          zEsc = 0;
+          *zz = (unsigned char)' ';
+          break;
+        default:
+          zEsc = 0;
+          break;
+      }
+    }
+    t->args.argv[argc++] = zKwd;
+    for( zz = zKwd; *zz; ++zz ){
+      if(isspace(*zz)){
+        *zz = 0;
+        break;
+      }
+    }
+    t->args.pKw = CmppKeyword_search((char const *)zKwd);
+    if(!t->args.pKw){
+      fatal("Unknown keyword '%s' at line %u\n", (char const *)zKwd,
+            tok->lineNo);
+    }
+    for( ++zz ; *zz && isspace(*zz); ++zz ){}
+    if(t->args.pKw->bTokenize){
+      for( ; *zz; prevChar = *zz, ++zz ){
+        /* Split string into word-shaped tokens. 
+        ** TODO ?= quoted strings, for the sake of the
+        ** #error keyword. */
+        if(isspace(*zz)){
+          assert(zz!=zKwd && "Leading space was stripped earlier.");
+          *zz = 0;
+        }else{
+          if(argc == (int)CmppArgs_Max){
+            fatal("Too many arguments @ line %u: %.*s",
+                  tok->lineNo, tokLen, tok->zBegin);
+          }else if(zz>zKwd && !prevChar){
+            t->args.argv[argc++] = zz;
+          }
+        }
+      }
+    }else{
+      /* Treat rest of line as one token */
+      if(*zz) t->args.argv[argc++] = zz;
+    }
+    tok->ttype = t->args.pKw->ttype;
+    if(g.doDebug>1){
+      for(i = 0; i < argc; ++i){
+        g_debug(0,("line %u arg #%d=%s\n",
+                   tok->lineNo, i,
+                   (char const *)t->args.argv[i]));
+      }
+    }
+    t->args.argc = argc;
+  }else{
+    t->args.pKw = 0;
+    t->args.argc = 0;
+  }
+  return isDelim;
+}
+
+static void cmpp_kwd__err_prefix(CmppKeyword const * pKw, CmppTokenizer *t,
+                                 char const *zPrefix){
+  g_stderr("%s%s%s @ %s line %u: ",
+           zPrefix ? zPrefix : "",
+           zPrefix ? ": " : "",
+           pKw->zName, t->zName, t->token.lineNo);
+}
+
+/* Internal error reporting helper for cmpp_keyword_f() impls. */
+static CMPP_NORETURN void cmpp_kwd__misuse(CmppKeyword const * pKw,
+                                           CmppTokenizer *t,
+                                           char const *zFmt, ...){
+  va_list va;
+  cmpp_kwd__err_prefix(pKw, t, "Fatal error");
+  va_start(va, zFmt);
+  fatalv(zFmt, va);
+  va_end(va);
+}
+
+/* No-op cmpp_keyword_f() impl. */
+static void cmpp_kwd_noop(CmppKeyword const * pKw, CmppTokenizer *t){
+  if(t || pKw){/*unused*/}
+}
+
+/* #error impl. */
+static void cmpp_kwd_error(CmppKeyword const * pKw, CmppTokenizer *t){
+  if(CT_skip(t)) return;
+  else{
+    assert(t->args.argc < 3);
+    const char *zBegin = t->args.argc>1
+      ? (const char *)t->args.argv[1] : 0;
+    cmpp_kwd__err_prefix(pKw, t, NULL);
+    fatal("%s", zBegin ? zBegin : "(no additional info)");
+  }
+}
+
+/* Impl. for #define, #undef */
+static void cmpp_kwd_define(CmppKeyword const * pKw, CmppTokenizer *t){
+  if(CT_skip(t)) return;
+  if(t->args.argc<2){
+    cmpp_kwd__misuse(pKw, t, "Expecting one or more arguments");
+  }else{
+    int i = 1;
+    void (*func)(const char *) = TT_Define==pKw->ttype
+      ? db_define_add : db_define_rm;
+    for( ; i < t->args.argc; ++i){
+      func( (char const *)t->args.argv[i] );
+    }
+  }
+}
+
+/* Impl. for #if, #ifnot, #elif, #elifnot. */
+static void cmpp_kwd_if(CmppKeyword const * pKw, CmppTokenizer *t){
+  int buul;
+  CmppParseState tmpState = TS_Start;
+  if(t->args.argc!=2){
+    cmpp_kwd__misuse(pKw, t, "Expecting exactly 1 argument");
+  }
+  /*g_debug(0,("%s %s level %u pstate=%d\n", pKw->zName,
+             (char const *)t->args.argv[1],
+             t->level.ndx, (int)CT_pstate(t)));*/
+  switch(pKw->ttype){
+    case TT_Elif:
+    case TT_ElifNot:
+      switch(CT_pstate(t)){
+        case TS_If: break;
+        case TS_IfPassed: CT_level(t).flags |= CmppLevel_F_ELIDE; return;
+        default: goto misuse;
+      }
+      break;
+    case TT_If:
+    case TT_IfNot:
+      CmppLevel_push(t);
+      break;
+    default:
+      cmpp_kwd__misuse(pKw, t, "Unpexected keyword token type");
+      break;
+  }
+  buul = db_define_has((char const *)t->args.argv[1]);
+  if(TT_IfNot==pKw->ttype || TT_ElifNot==pKw->ttype) buul = !buul;
+  if(buul){
+    CT_pstate(t) = tmpState = TS_IfPassed;
+    CT_skipLevel(t) = 0;
+  }else{
+    CT_pstate(t) = TS_If /* also for TT_IfNot, TT_Elif, TT_ElifNot */;
+    CT_skipLevel(t) = 1;
+    g_debug(3,("setting CT_skipLevel = 1 @ level %d\n", t->level.ndx));
+  }
+  if(TT_If==pKw->ttype || TT_IfNot==pKw->ttype){
+    unsigned const lvlIf = t->level.ndx;
+    CmppToken const lvlToken = CT_level(t).token;
+    while(cmpp_next_keyword_line(t)){
+      cmpp_process_keyword(t);
+      if(lvlIf > t->level.ndx){
+        assert(TT_EndIf == t->token.ttype);
+        break;
+      }
+#if 0
+      if(TS_IfPassed==tmpState){
+        tmpState = TS_Start;
+        t->level.stack[lvlIf].flags |= CmppLevel_F_ELIDE;
+        g_debug(1,("Setting ELIDE for TS_IfPassed @ lv %d (lvlIf=%d)\n", t->level.ndx, lvlIf));
+      }
+#endif
+    }
+    if(lvlIf <= t->level.ndx){
+      cmpp_kwd__err_prefix(pKw, t, NULL);
+      fatal("Input ended inside an unterminated %sif "
+            "opened at [%s] line %u",
+            g.zDelim, t->zName, lvlToken.lineNo);
+    }
+  }
+  return;
+  misuse:
+  cmpp_kwd__misuse(pKw, t, "'%s' used out of context",
+                   pKw->zName);
+}
+
+/* Impl. for #else. */
+static void cmpp_kwd_else(CmppKeyword const * pKw, CmppTokenizer *t){
+  if(t->args.argc>1){
+    cmpp_kwd__misuse(pKw, t, "Expecting no arguments");
+  }
+  switch(CT_pstate(t)){
+    case TS_IfPassed: CT_skipLevel(t) = 1; break;
+    case TS_If: CT_skipLevel(t) = 0; break;
+    default:
+      cmpp_kwd__misuse(pKw, t, "'%s' with no matching 'if'",
+                      pKw->zName);
+  }
+  /*g_debug(0,("else flags=0x%02x skipLevel=%u\n",
+    CT_level(t).flags, CT_level(t).skipLevel));*/
+  CT_pstate(t) = TS_Else;
+}
+
+/* Impl. for #endif. */
+static void cmpp_kwd_endif(CmppKeyword const * pKw, CmppTokenizer *t){
+  /* Maintenance reminder: we ignore all arguments after the endif
+  ** to allow for constructs like:
+  **
+  ** #endif // foo
+  **
+  ** in a manner which does not require a specific comment style */
+  switch(CT_pstate(t)){
+    case TS_Else:
+    case TS_If:
+    case TS_IfPassed:
+      break;
+    default:
+      cmpp_kwd__misuse(pKw, t, "'%s' with no matching 'if'",
+                       pKw->zName);
+  }
+  CmppLevel_pop(t);
+}
+
+/* Impl. for #include. */
+static void cmpp_kwd_include(CmppKeyword const * pKw, CmppTokenizer *t){
+  char const * zFile;
+  char * zResolved;
+  if(CT_skip(t)) return;
+  else if(t->args.argc!=2){
+    cmpp_kwd__misuse(pKw, t, "Expecting exactly 1 filename argument");
+  }
+  zFile = (const char *)t->args.argv[1];
+  if(db_including_has(zFile)){
+    /* Note that different spellings of the same filename
+    ** will elude this check, but that seems okay, as different
+    ** spellings means that we're not re-running the exact same
+    ** invocation. We might want some other form of multi-include
+    ** protection, rather than this, however. There may well be
+    ** sensible uses for recursion. */
+    cmpp_kwd__err_prefix(pKw, t, NULL);
+    fatal("Recursive include of file: %s", zFile);
+  }
+  zResolved = db_include_search(zFile);
+  if(zResolved){
+    db_including_add(zFile, t->zName, t->token.lineNo);
+    cmpp_process_file(zResolved);
+    db_include_rm(zFile);
+    db_free(zResolved);
+  }else{
+    cmpp_kwd__err_prefix(pKw, t, NULL);
+    fatal("file not found: %s", zFile);
+  }
+}
+
+/* Impl. for #pragma. */
+static void cmpp_kwd_pragma(CmppKeyword const * pKw, CmppTokenizer *t){
+  const char * zArg;
+  if(CT_skip(t)) return;
+  else if(t->args.argc!=2){
+    cmpp_kwd__misuse(pKw, t, "Expecting one argument");
+  }
+  zArg = (const char *)t->args.argv[1];
+#define M(X) 0==strcmp(zArg,X)
+  if(M("defines")){
+    sqlite3_stmt * q = 0;
+    db_prepare(&q, "SELECT k FROM def ORDER BY k");
+    g_stderr("cmpp defines:\n");
+    while(SQLITE_ROW==db_step(q)){
+      int const n = sqlite3_column_bytes(q, 0);
+      const char * z = (const char *)sqlite3_column_text(q, 0);
+      g_stderr("\t%.*s\n", n, z);
+    }
+    db_finalize(q);
+  }else{
+    cmpp_kwd__misuse(pKw, t, "Unknown pragma");
+  }
+#undef M
+}
+
+/* #stder impl. */
+static void cmpp_kwd_stderr(CmppKeyword const * pKw, CmppTokenizer *t){
+  if(CT_skip(t)) return;
+  else{
+    const char *zBegin = t->args.argc>1
+      ? (const char *)t->args.argv[1] : 0;
+    if(zBegin){
+      g_stderr("%s:%u: %s\n", t->zName, t->token.lineNo, zBegin);
+    }else{
+      g_stderr("%s:%u: (no %.*s%s argument)\n",
+               t->zName, t->token.lineNo,
+               g.nDelim, g.zDelim, pKw->zName);
+    }
+  }
+}
+
+#if 0
+/* Impl. for dummy placeholder. */
+static void cmpp_kwd_todo(CmppKeyword const * pKw, CmppTokenizer *t){
+  if(t){/*unused*/}
+  g_debug(0,("TODO: keyword handler for %s\n", pKw->zName));
+}
+#endif
+
+CmppKeyword aKeywords[] = {
+/* Keep these sorted by zName */
+  {"//", 2, 0, TT_Comment, cmpp_kwd_noop},
+  {"define", 6, 1, TT_Define, cmpp_kwd_define},
+  {"elif", 4, 1, TT_Elif, cmpp_kwd_if},
+  {"elifnot", 7, 1, TT_ElifNot, cmpp_kwd_if},
+  {"else", 4, 1, TT_Else, cmpp_kwd_else},
+  {"endif", 5, 0, TT_EndIf, cmpp_kwd_endif},
+  {"error", 4, 0, TT_Error, cmpp_kwd_error},
+  {"if", 2, 1, TT_If, cmpp_kwd_if},
+  {"ifnot", 5, 1, TT_IfNot, cmpp_kwd_if},
+  {"include", 7, 0, TT_Include, cmpp_kwd_include},
+  {"pragma", 6, 1, TT_Pragma, cmpp_kwd_pragma},
+  {"stderr", 6, 0, TT_Stderr, cmpp_kwd_stderr},
+  {"undef", 5, 1, TT_Undef, cmpp_kwd_define},
+  {0,0,TT_Invalid, 0}
+};
+
+static int cmp_CmppKeyword(const void *p1, const void *p2){
+  char const * zName = (const char *)p1;
+  CmppKeyword const * kw = (CmppKeyword const *)p2;
+  return strcmp(zName, kw->zName);
+}
+
+CmppKeyword const * CmppKeyword_search(const char *zName){
+  return (CmppKeyword const *)bsearch(zName, &aKeywords[0],
+                                      sizeof(aKeywords)/sizeof(aKeywords[0]) - 1,
+                                      sizeof(aKeywords[0]),
+                                      cmp_CmppKeyword);
+}
+
+void cmpp_process_keyword(CmppTokenizer * const t){
+  assert(t->args.pKw);
+  assert(t->args.argc);
+  t->args.pKw->xCall(t->args.pKw, t);
+  t->args.pKw = 0;
+  t->args.argc = 0;
+}
+
+void cmpp_process_file(const char * zName){
+  FileWrapper fw = FileWrapper_empty;
+  CmppTokenizer ct = CmppTokenizer_empty;
+
+  FileWrapper_open(&fw, zName, "r");
+  FileWrapper_slurp(&fw);
+  g_debug(1,("Read %u byte(s) from [%s]\n", fw.nContent, fw.zName));
+  ct.zName = zName;
+  ct.zBegin = fw.zContent;
+  ct.zEnd = fw.zContent + fw.nContent;
+  while(cmpp_next_keyword_line(&ct)){
+    cmpp_process_keyword(&ct);
+  }
+  FileWrapper_close(&fw);
+  if(0!=ct.level.ndx){
+    CmppLevel * const lv = CmppLevel_get(&ct);
+    fatal("Input ended inside an unterminated nested construct"
+          "opened at [%s] line %u", zName, lv->token.lineNo);
+  }
+}
+
+static void usage(int isErr){
+  FILE * const fOut = isErr ? stderr : stdout;
+  fprintf(fOut,
+          "Usage: %s [flags] [infile]\n"
+          "Flags:\n",
+          g.zArgv0);
+#define arg(F,D) fprintf(fOut,"  %s\n      %s\n",F, D)
+  arg("-f|--file FILE","Read input from FILE (default=- (stdin)).\n"
+      "      Alternately, the first non-flag argument is assumed to "
+      "be the input file.");
+  arg("-o|--outfile FILE","Send output to FILE (default=- (stdout))");
+  arg("-DXYZ","Define XYZ to true");
+  arg("-UXYZ","Undefine XYZ (equivalent to false)");
+  arg("-IXYZ","Add dir XYZ to include path");
+  arg("-d|--delimiter VALUE", "Set keyword delimiter to VALUE "
+      "(default=" CMPP_DEFAULT_DELIM ")");
+#undef arg
+  fputs("",fOut);
+}
+
+int main(int argc, char const * const * argv){
+  int rc = 0;
+  int i;
+  int inclCount = 0;
+  const char * zInfile = 0;
+#define M(X) (0==strcmp(X,zArg))
+#define ISFLAG(X) else if(M(X))
+#define ISFLAG2(X,Y) else if(M(X) || M(Y))
+#define ARGVAL \
+  if(i+1>=argc) fatal("Missing value for flag '%s'", zArg);  \
+  zArg = argv[++i]
+  g.zArgv0 = argv[0];
+  atexit(cmpp_atexit);
+  cmpp_initdb();
+  for(i = 1; i < argc; ++i){
+    char const * zArg = argv[i];
+    while('-'==*zArg) ++zArg;
+    if(M("?") || M("help")) {
+      usage(0);
+      goto end;
+    }else if('D'==*zArg){
+      ++zArg;
+      if(!*zArg) fatal("Missing key for -D");
+      db_define_add(zArg);
+    }else if('U'==*zArg){
+      ++zArg;
+      if(!*zArg) fatal("Missing key for -U");
+      db_define_rm(zArg);
+    }else if('I'==*zArg){
+      ++zArg;
+      if(!*zArg) fatal("Missing directory for -I");
+      db_include_dir_add(zArg);
+      ++inclCount;
+    }
+    ISFLAG2("o","outfile"){
+      ARGVAL;
+      if(g.out.zName) fatal("Cannot use -o more than once.");
+      g.out.zName = zArg;
+    }
+    ISFLAG2("f","file"){
+      ARGVAL;
+      do_infile:
+      if(zInfile) fatal("Cannot use -i more than once.");
+      zInfile = zArg;
+    }
+    ISFLAG2("d","delimiter"){
+      ARGVAL;
+      g.zDelim = zArg;
+      g.nDelim = (unsigned short)strlen(zArg);
+      if(!g.nDelim) fatal("Keyword delimiter may not be empty.");
+    }
+    ISFLAG("debug"){
+      ++g.doDebug;
+    }else if(!zInfile && '-'!=argv[i][0]){
+      goto do_infile;
+    }else{
+      fatal("Unhandled flag: %s", argv[i]);
+    }
+  }
+  if(!zInfile) zInfile = "-";
+  if(!g.out.zName) g.out.zName = "-";
+  if(!inclCount) db_include_dir_add(".");
+  FileWrapper_open(&g.out, g.out.zName, "w");
+  cmpp_process_file(zInfile);
+  FileWrapper_close(&g.out);
+  end:
+  return rc ? EXIT_FAILURE : EXIT_SUCCESS;
+}
+
+#undef CT_level
+#undef CT_pstate
+#undef CT_skipLevel
+#undef CT_skip
+#undef CLvl_skip
diff --git a/ext/wasm/common/SqliteTestUtil.js b/ext/wasm/common/SqliteTestUtil.js
new file mode 100644
index 0000000000000000000000000000000000000000..2c17824c5336a748d4e915bf47a1b88706f2d446
--- /dev/null
+++ b/ext/wasm/common/SqliteTestUtil.js
@@ -0,0 +1,235 @@
+/*
+  2022-05-22
+
+  The author disclaims copyright to this source code.  In place of a
+  legal notice, here is a blessing:
+
+  *   May you do good and not evil.
+  *   May you find forgiveness for yourself and forgive others.
+  *   May you share freely, never taking more than you give.
+
+  ***********************************************************************
+
+  This file contains bootstrapping code used by various test scripts
+  which live in this file's directory.
+*/
+'use strict';
+(function(self){
+  /* querySelectorAll() proxy */
+  const EAll = function(/*[element=document,] cssSelector*/){
+    return (arguments.length>1 ? arguments[0] : document)
+      .querySelectorAll(arguments[arguments.length-1]);
+  };
+  /* querySelector() proxy */
+  const E = function(/*[element=document,] cssSelector*/){
+    return (arguments.length>1 ? arguments[0] : document)
+      .querySelector(arguments[arguments.length-1]);
+  };
+
+  /**
+     Helpers for writing sqlite3-specific tests.
+  */
+  self.SqliteTestUtil = {
+    /** Running total of the number of tests run via
+        this API. */
+    counter: 0,
+    /**
+       If expr is a function, it is called and its result
+       is returned, coerced to a bool, else expr, coerced to
+       a bool, is returned.
+    */
+    toBool: function(expr){
+      return (expr instanceof Function) ? !!expr() : !!expr;
+    },
+    /** abort() if expr is false. If expr is a function, it
+        is called and its result is evaluated.
+    */
+    assert: function f(expr, msg){
+      if(!f._){
+        f._ = ('undefined'===typeof abort
+               ? (msg)=>{throw new Error(msg)}
+               : abort);
+      }
+      ++this.counter;
+      if(!this.toBool(expr)){
+        f._(msg || "Assertion failed.");
+      }
+      return this;
+    },
+    /** Identical to assert() but throws instead of calling
+        abort(). */
+    affirm: function(expr, msg){
+      ++this.counter;
+      if(!this.toBool(expr)) throw new Error(msg || "Affirmation failed.");
+      return this;
+    },
+    /** Calls f() and squelches any exception it throws. If it
+        does not throw, this function throws. */
+    mustThrow: function(f, msg){
+      ++this.counter;
+      let err;
+      try{ f(); } catch(e){err=e;}
+      if(!err) throw new Error(msg || "Expected exception.");
+      return this;
+    },
+    /**
+       Works like mustThrow() but expects filter to be a regex,
+       function, or string to match/filter the resulting exception
+       against. If f() does not throw, this test fails and an Error is
+       thrown. If filter is a regex, the test passes if
+       filter.test(error.message) passes. If it's a function, the test
+       passes if filter(error) returns truthy. If it's a string, the
+       test passes if the filter matches the exception message
+       precisely. In all other cases the test fails, throwing an
+       Error.
+
+       If it throws, msg is used as the error report unless it's falsy,
+       in which case a default is used.
+    */
+    mustThrowMatching: function(f, filter, msg){
+      ++this.counter;
+      let err;
+      try{ f(); } catch(e){err=e;}
+      if(!err) throw new Error(msg || "Expected exception.");
+      let pass = false;
+      if(filter instanceof RegExp) pass = filter.test(err.message);
+      else if(filter instanceof Function) pass = filter(err);
+      else if('string' === typeof filter) pass = (err.message === filter);
+      if(!pass){
+        throw new Error(msg || ("Filter rejected this exception: "+err.message));
+      }
+      return this;
+    },
+    /** Throws if expr is truthy or expr is a function and expr()
+        returns truthy. */
+    throwIf: function(expr, msg){
+      ++this.counter;
+      if(this.toBool(expr)) throw new Error(msg || "throwIf() failed");
+      return this;
+    },
+    /** Throws if expr is falsy or expr is a function and expr()
+        returns falsy. */
+    throwUnless: function(expr, msg){
+      ++this.counter;
+      if(!this.toBool(expr)) throw new Error(msg || "throwUnless() failed");
+      return this;
+    },
+
+    /**
+       Parses window.location.search-style string into an object
+       containing key/value pairs of URL arguments (already
+       urldecoded). The object is created using Object.create(null),
+       so contains only parsed-out properties and has no prototype
+       (and thus no inherited properties).
+
+       If the str argument is not passed (arguments.length==0) then
+       window.location.search.substring(1) is used by default. If
+       neither str is passed in nor window exists then false is returned.
+
+       On success it returns an Object containing the key/value pairs
+       parsed from the string. Keys which have no value are treated
+       has having the boolean true value.
+
+       Pedantic licensing note: this code has appeared in other source
+       trees, but was originally written by the same person who pasted
+       it into those trees.
+    */
+    processUrlArgs: function(str) {
+      if( 0 === arguments.length ) {
+        if( ('undefined' === typeof window) ||
+            !window.location ||
+            !window.location.search )  return false;
+        else str = (''+window.location.search).substring(1);
+      }
+      if( ! str ) return false;
+      str = (''+str).split(/#/,2)[0]; // remove #... to avoid it being added as part of the last value.
+      const args = Object.create(null);
+      const sp = str.split(/&+/);
+      const rx = /^([^=]+)(=(.+))?/;
+      var i, m;
+      for( i in sp ) {
+        m = rx.exec( sp[i] );
+        if( ! m ) continue;
+        args[decodeURIComponent(m[1])] = (m[3] ? decodeURIComponent(m[3]) : true);
+      }
+      return args;
+    }
+  };
+
+  /**
+     This is a module object for use with the emscripten-installed
+     sqlite3InitModule() factory function.
+  */
+  self.sqlite3TestModule = {
+    /**
+       Array of functions to call after Emscripten has initialized the
+       wasm module. Each gets passed the Emscripten module object
+       (which is _this_ object).
+    */
+    postRun: [
+      /* function(theModule){...} */
+    ],
+    //onRuntimeInitialized: function(){},
+    /* Proxy for C-side stdout output. */
+    print: (...args)=>{console.log(...args)},
+    /* Proxy for C-side stderr output. */
+    printErr: (...args)=>{console.error(...args)},
+    /**
+       Called by the Emscripten module init bits to report loading
+       progress. It gets passed an empty argument when loading is done
+       (after onRuntimeInitialized() and any this.postRun callbacks
+       have been run).
+    */
+    setStatus: function f(text){
+      if(!f.last){
+        f.last = { text: '', step: 0 };
+        f.ui = {
+          status: E('#module-status'),
+          progress: E('#module-progress'),
+          spinner: E('#module-spinner')
+        };
+      }
+      if(text === f.last.text) return;
+      f.last.text = text;
+      if(f.ui.progress){
+        f.ui.progress.value = f.last.step;
+        f.ui.progress.max = f.last.step + 1;
+      }
+      ++f.last.step;
+      if(text) {
+        f.ui.status.classList.remove('hidden');
+        f.ui.status.innerText = text;
+      }else{
+        if(f.ui.progress){
+          f.ui.progress.remove();
+          f.ui.spinner.remove();
+          delete f.ui.progress;
+          delete f.ui.spinner;
+        }
+        f.ui.status.classList.add('hidden');
+      }
+    },
+    /**
+       Config options used by the Emscripten-dependent initialization
+       which happens via this.initSqlite3(). This object gets
+       (indirectly) passed to sqlite3ApiBootstrap() to configure the
+       sqlite3 API.
+    */
+    sqlite3ApiConfig: {
+      wasmfsOpfsDir: "/opfs"
+    },
+    /**
+       Intended to be called by apps which need to call the
+       Emscripten-installed sqlite3InitModule() routine. This function
+       temporarily installs this.sqlite3ApiConfig into the self
+       object, calls it sqlite3InitModule(), and removes
+       self.sqlite3ApiConfig after initialization is done. Returns the
+       promise from sqlite3InitModule(), and the next then() handler
+       will get the sqlite3 API object as its argument.
+    */
+    initSqlite3: function(){
+      self.sqlite3ApiConfig = this.sqlite3ApiConfig;
+      return self.sqlite3InitModule(this).finally(()=>delete self.sqlite3ApiConfig);
+    }
+  };
+})(self/*window or worker*/);
diff --git a/ext/wasm/common/emscripten.css b/ext/wasm/common/emscripten.css
new file mode 100644
index 0000000000000000000000000000000000000000..d8f82c73b208940f9d29ae63fde6894a8553fb8e
--- /dev/null
+++ b/ext/wasm/common/emscripten.css
@@ -0,0 +1,24 @@
+/* emscripten-related styling, used during the module load/intialization processes... */
+.emscripten { padding-right: 0; margin-left: auto; margin-right: auto; display: block; }
+div.emscripten { text-align: center; }
+div.emscripten_border { border: 1px solid black; }
+#module-spinner { overflow: visible; }
+#module-spinner > * {
+    margin-top: 1em;
+}
+.spinner {
+    height: 50px;
+    width: 50px;
+    margin: 0px auto;
+    animation: rotation 0.8s linear infinite;
+    border-left: 10px solid rgb(0,150,240);
+    border-right: 10px solid rgb(0,150,240);
+    border-bottom: 10px solid rgb(0,150,240);
+    border-top: 10px solid rgb(100,0,200);
+    border-radius: 100%;
+    background-color: rgb(200,100,250);
+}
+@keyframes rotation {
+    from {transform: rotate(0deg);}
+    to {transform: rotate(360deg);}
+}
diff --git a/ext/wasm/common/testing.css b/ext/wasm/common/testing.css
new file mode 100644
index 0000000000000000000000000000000000000000..a9be76764cf7764a5f0057b206ae5a18ad64795a
--- /dev/null
+++ b/ext/wasm/common/testing.css
@@ -0,0 +1,102 @@
+body {
+  display: flex;
+  flex-direction: column;
+  flex-wrap: wrap;
+}
+textarea {
+    font-family: monospace;
+}
+header {
+    font-size: 130%;
+    font-weight: bold;
+}
+.hidden, .initially-hidden {
+    position: absolute !important;
+    opacity: 0 !important;
+    pointer-events: none !important;
+    display: none !important;
+}
+fieldset.options {
+    font-size: 75%;
+}
+fieldset > legend {
+    padding: 0 0.5em;
+}
+span.labeled-input {
+    padding: 0.25em;
+    margin: 0.25em 0.5em;
+    border-radius: 0.25em;
+    white-space: nowrap;
+    background: #0002;
+}
+.center { text-align: center; }
+.error {
+    color: red;
+    background-color: yellow;
+}
+.strong { font-weight: 700 }
+.warning { color: firebrick; }
+.green { color: darkgreen; }
+.tests-pass { background-color: green; color: white }
+.tests-fail { background-color: red; color: yellow }
+.faded { opacity: 0.5; }
+.group-start {
+  color: blue;
+  background-color: skyblue;
+  font-weight: bold;
+  border-top: 1px dotted blue;
+  padding: 0.5em;
+  margin-top: 0.5em;
+}
+.group-end {
+  padding: 0.5em;
+  margin-bottom: 0.25em;
+  /*border-bottom: 1px dotted blue;*/
+}
+.group-end.green {
+  background: lightgreen;
+  border-bottom: 1px dotted green;
+}
+.one-test-line, .skipping-group {
+  margin-left: 3em;
+}
+.skipping-test, .skipping-group {
+  padding: 0.25em 0.5em;
+  background-color: #ffff73;
+}
+.skipping-test {
+  margin-left: 6em;
+}
+.one-test-summary {
+  margin-left: 6em;
+}
+.full-test-summary {
+  padding-bottom: 0.5em;
+  padding-top: 0.5em;
+  border-top: 1px solid black;
+}
+.input-wrapper {
+  white-space: nowrap;
+  display: flex;
+  align-items: center;
+}
+#test-output {
+  border: 1px inset;
+  border-radius: 0.25em;
+  padding: 0.25em;
+  /*max-height: 30em;*/
+  overflow: auto;
+  white-space: break-spaces;
+  display: flex; flex-direction: column;
+  font-family: monospace;
+}
+#test-output.reverse {
+  flex-direction: column-reverse;
+}
+label[for] { cursor: pointer }
+
+h1 {
+  border-radius: 0.25em;
+  padding: 0.15em 0.25em;
+}
+h1:first-of-type {margin: 0 0 0.5em 0;}
diff --git a/ext/wasm/common/whwasmutil.js b/ext/wasm/common/whwasmutil.js
new file mode 100644
index 0000000000000000000000000000000000000000..25400d48e3119278193eaa47e17863df0e90d4b1
--- /dev/null
+++ b/ext/wasm/common/whwasmutil.js
@@ -0,0 +1,2289 @@
+/**
+  2022-07-08
+
+  The author disclaims copyright to this source code.  In place of a
+  legal notice, here is a blessing:
+
+  *   May you do good and not evil.
+  *   May you find forgiveness for yourself and forgive others.
+  *   May you share freely, never taking more than you give.
+
+  ***********************************************************************
+
+  The whwasmutil is developed in conjunction with the Jaccwabyt
+  project:
+
+  https://fossil.wanderinghorse.net/r/jaccwabyt
+
+  and sqlite3:
+
+  https://sqlite.org
+
+  This file is kept in sync between both of those trees.
+
+  Maintenance reminder: If you're reading this in a tree other than
+  one of those listed above, note that this copy may be replaced with
+  upstream copies of that one from time to time. Thus the code
+  installed by this function "should not" be edited outside of those
+  projects, else it risks getting overwritten.
+*/
+/**
+   This function is intended to simplify porting around various bits
+   of WASM-related utility code from project to project.
+
+   The primary goal of this code is to replace, where possible,
+   Emscripten-generated glue code with equivalent utility code which
+   can be used in arbitrary WASM environments built with toolchains
+   other than Emscripten. As of this writing, this code is capable of
+   acting as a replacement for Emscripten's generated glue code
+   _except_ that the latter installs handlers for Emscripten-provided
+   APIs such as its "FS" (virtual filesystem) API. Loading of such
+   things still requires using Emscripten's glue, but the post-load
+   utility APIs provided by this code are still usable as replacements
+   for their sub-optimally-documented Emscripten counterparts.
+
+   Intended usage:
+
+   ```
+   globalThis.WhWasmUtilInstaller(appObject);
+   delete globalThis.WhWasmUtilInstaller;
+   ```
+
+   Its global-scope symbol is intended only to provide an easy way to
+   make it available to 3rd-party scripts and "should" be deleted
+   after calling it. That symbols is _not_ used within the library.
+
+   Forewarning: this API explicitly targets only browser
+   environments. If a given non-browser environment has the
+   capabilities needed for a given feature (e.g. TextEncoder), great,
+   but it does not go out of its way to account for them and does not
+   provide compatibility crutches for them.
+
+   It currently offers alternatives to the following
+   Emscripten-generated APIs:
+
+   - OPTIONALLY memory allocation, but how this gets imported is
+     environment-specific.  Most of the following features only work
+     if allocation is available.
+
+   - WASM-exported "indirect function table" access and
+     manipulation. e.g.  creating new WASM-side functions using JS
+     functions, analog to Emscripten's addFunction() and
+     uninstallFunction() but slightly different.
+
+   - Get/set specific heap memory values, analog to Emscripten's
+     getValue() and setValue().
+
+   - String length counting in UTF-8 bytes (C-style and JS strings).
+
+   - JS string to C-string conversion and vice versa, analog to
+     Emscripten's stringToUTF8Array() and friends, but with slighter
+     different interfaces.
+
+   - JS string to Uint8Array conversion, noting that browsers actually
+     already have this built in via TextEncoder.
+
+   - "Scoped" allocation, such that allocations made inside of a given
+     explicit scope will be automatically cleaned up when the scope is
+     closed. This is fundamentally similar to Emscripten's
+     stackAlloc() and friends but uses the heap instead of the stack
+     because access to the stack requires C code.
+
+   - Create JS wrappers for WASM functions, analog to Emscripten's
+     ccall() and cwrap() functions, except that the automatic
+     conversions for function arguments and return values can be
+     easily customized by the client by assigning custom function
+     signature type names to conversion functions. Essentially,
+     it's ccall() and cwrap() on steroids.
+
+   How to install...
+
+   Passing an object to this function will install the functionality
+   into that object. Afterwards, client code "should" delete the global
+   symbol.
+
+   This code requires that the target object have the following
+   properties, noting that they needn't be available until the first
+   time one of the installed APIs is used (as opposed to when this
+   function is called) except where explicitly noted:
+
+   - `exports` must be a property of the target object OR a property
+     of `target.instance` (a WebAssembly.Module instance) and it must
+     contain the symbols exported by the WASM module associated with
+     this code. In an Enscripten environment it must be set to
+     `Module['asm']` (versions <=3.1.43) or `wasmExports` (versions
+     >=3.1.44). The exports object must contain a minimum of the
+     following symbols:
+
+     - `memory`: a WebAssembly.Memory object representing the WASM
+       memory. _Alternately_, the `memory` property can be set as
+       `target.memory`, in particular if the WASM heap memory is
+       initialized in JS an _imported_ into WASM, as opposed to being
+       initialized in WASM and exported to JS.
+
+     - `__indirect_function_table`: the WebAssembly.Table object which
+       holds WASM-exported functions. This API does not strictly
+       require that the table be able to grow but it will throw if its
+       `installFunction()` is called and the table cannot grow.
+
+   In order to simplify downstream usage, if `target.exports` is not
+   set when this is called then a property access interceptor
+   (read-only, configurable, enumerable) gets installed as `exports`
+   which resolves to `target.instance.exports`, noting that the latter
+   property need not exist until the first time `target.exports` is
+   accessed.
+
+   Some APIs _optionally_ make use of the `bigIntEnabled` property of
+   the target object. It "should" be set to true if the WASM
+   environment is compiled with BigInt support, else it must be
+   false. If it is false, certain BigInt-related features will trigger
+   an exception if invoked. This property, if not set when this is
+   called, will get a default value of true only if the BigInt64Array
+   constructor is available, else it will default to false. Note that
+   having the BigInt type is not sufficient for full int64 integration
+   with WASM: the target WASM file must also have been built with
+   that support. In Emscripten that's done using the `-sWASM_BIGINT`
+   flag.
+
+   Some optional APIs require that the target have the following
+   methods:
+
+   - 'alloc()` must behave like C's `malloc()`, allocating N bytes of
+     memory and returning its pointer. In Emscripten this is
+     conventionally made available via `Module['_malloc']`. This API
+     requires that the alloc routine throw on allocation error, as
+     opposed to returning null or 0.
+
+   - 'dealloc()` must behave like C's `free()`, accepting either a
+     pointer returned from its allocation counterpart or the values
+     null/0 (for which it must be a no-op). In Emscripten this is
+     conventionally made available via `Module['_free']`.
+
+   APIs which require allocation routines are explicitly documented as
+   such and/or have "alloc" in their names.
+
+   This code is developed and maintained in conjunction with the
+   Jaccwabyt project:
+
+   https://fossil.wanderinghorse.net/r/jaccwabbyt
+
+   More specifically:
+
+   https://fossil.wanderinghorse.net/r/jaccwabbyt/file/common/whwasmutil.js
+*/
+globalThis.WhWasmUtilInstaller = function(target){
+  'use strict';
+  if(undefined===target.bigIntEnabled){
+    target.bigIntEnabled = !!globalThis['BigInt64Array'];
+  }
+
+  /** Throws a new Error, the message of which is the concatenation of
+      all args with a space between each. */
+  const toss = (...args)=>{throw new Error(args.join(' '))};
+
+  if(!target.exports){
+    Object.defineProperty(target, 'exports', {
+      enumerable: true, configurable: true,
+      get: ()=>(target.instance && target.instance.exports)
+    });
+  }
+
+  /*********
+    alloc()/dealloc() auto-install...
+
+    This would be convenient but it can also cause us to pick up
+    malloc() even when the client code is using a different exported
+    allocator (who, me?), which is bad. malloc() may be exported even
+    if we're not explicitly using it and overriding the malloc()
+    function, linking ours first, is not always feasible when using a
+    malloc() proxy, as it can lead to recursion and stack overflow
+    (who, me?). So... we really need the downstream code to set up
+    target.alloc/dealloc() itself.
+  ******/
+  /******
+  if(target.exports){
+    //Maybe auto-install alloc()/dealloc()...
+    if(!target.alloc && target.exports.malloc){
+      target.alloc = function(n){
+        const m = this(n);
+        return m || toss("Allocation of",n,"byte(s) failed.");
+      }.bind(target.exports.malloc);
+    }
+
+    if(!target.dealloc && target.exports.free){
+      target.dealloc = function(ptr){
+        if(ptr) this(ptr);
+      }.bind(target.exports.free);
+    }
+  }*******/
+
+  /**
+     Pointers in WASM are currently assumed to be 32-bit, but someday
+     that will certainly change.
+  */
+  const ptrIR = target.pointerIR || 'i32';
+  const ptrSizeof = target.ptrSizeof =
+        ('i32'===ptrIR ? 4
+         : ('i64'===ptrIR
+            ? 8 : toss("Unhandled ptrSizeof:",ptrIR)));
+  /** Stores various cached state. */
+  const cache = Object.create(null);
+  /** Previously-recorded size of cache.memory.buffer, noted so that
+      we can recreate the view objects if the heap grows. */
+  cache.heapSize = 0;
+  /** WebAssembly.Memory object extracted from target.memory or
+      target.exports.memory the first time heapWrappers() is
+      called. */
+  cache.memory = null;
+  /** uninstallFunction() puts table indexes in here for reuse and
+      installFunction() extracts them. */
+  cache.freeFuncIndexes = [];
+  /**
+     Used by scopedAlloc() and friends.
+  */
+  cache.scopedAlloc = [];
+
+  cache.utf8Decoder = new TextDecoder();
+  cache.utf8Encoder = new TextEncoder('utf-8');
+
+  /**
+     For the given IR-like string in the set ('i8', 'i16', 'i32',
+     'f32', 'float', 'i64', 'f64', 'double', '*'), or any string value
+     ending in '*', returns the sizeof for that value
+     (target.ptrSizeof in the latter case). For any other value, it
+     returns the undefined value.
+  */
+  target.sizeofIR = (n)=>{
+    switch(n){
+        case 'i8': return 1;
+        case 'i16': return 2;
+        case 'i32': case 'f32': case 'float': return 4;
+        case 'i64': case 'f64': case 'double': return 8;
+        case '*': return ptrSizeof;
+        default:
+          return (''+n).endsWith('*') ? ptrSizeof : undefined;
+    }
+  };
+
+  /**
+     If (cache.heapSize !== cache.memory.buffer.byteLength), i.e. if
+     the heap has grown since the last call, updates cache.HEAPxyz.
+     Returns the cache object.
+  */
+  const heapWrappers = function(){
+    if(!cache.memory){
+      cache.memory = (target.memory instanceof WebAssembly.Memory)
+        ? target.memory : target.exports.memory;
+    }else if(cache.heapSize === cache.memory.buffer.byteLength){
+      return cache;
+    }
+    // heap is newly-acquired or has been resized....
+    const b = cache.memory.buffer;
+    cache.HEAP8 = new Int8Array(b); cache.HEAP8U = new Uint8Array(b);
+    cache.HEAP16 = new Int16Array(b); cache.HEAP16U = new Uint16Array(b);
+    cache.HEAP32 = new Int32Array(b); cache.HEAP32U = new Uint32Array(b);
+    if(target.bigIntEnabled){
+      cache.HEAP64 = new BigInt64Array(b); cache.HEAP64U = new BigUint64Array(b);
+    }
+    cache.HEAP32F = new Float32Array(b); cache.HEAP64F = new Float64Array(b);
+    cache.heapSize = b.byteLength;
+    return cache;
+  };
+
+  /** Convenience equivalent of this.heapForSize(8,false). */
+  target.heap8 = ()=>heapWrappers().HEAP8;
+
+  /** Convenience equivalent of this.heapForSize(8,true). */
+  target.heap8u = ()=>heapWrappers().HEAP8U;
+
+  /** Convenience equivalent of this.heapForSize(16,false). */
+  target.heap16 = ()=>heapWrappers().HEAP16;
+
+  /** Convenience equivalent of this.heapForSize(16,true). */
+  target.heap16u = ()=>heapWrappers().HEAP16U;
+
+  /** Convenience equivalent of this.heapForSize(32,false). */
+  target.heap32 = ()=>heapWrappers().HEAP32;
+
+  /** Convenience equivalent of this.heapForSize(32,true). */
+  target.heap32u = ()=>heapWrappers().HEAP32U;
+
+  /**
+     Requires n to be one of:
+
+     - integer 8, 16, or 32.
+     - A integer-type TypedArray constructor: Int8Array, Int16Array,
+     Int32Array, or their Uint counterparts.
+
+     If this.bigIntEnabled is true, it also accepts the value 64 or a
+     BigInt64Array/BigUint64Array, else it throws if passed 64 or one
+     of those constructors.
+
+     Returns an integer-based TypedArray view of the WASM heap
+     memory buffer associated with the given block size. If passed
+     an integer as the first argument and unsigned is truthy then
+     the "U" (unsigned) variant of that view is returned, else the
+     signed variant is returned. If passed a TypedArray value, the
+     2nd argument is ignored. Note that Float32Array and
+     Float64Array views are not supported by this function.
+
+     Note that growth of the heap will invalidate any references to
+     this heap, so do not hold a reference longer than needed and do
+     not use a reference after any operation which may
+     allocate. Instead, re-fetch the reference by calling this
+     function again.
+
+     Throws if passed an invalid n.
+
+     Pedantic side note: the name "heap" is a bit of a misnomer. In a
+     WASM environment, the stack and heap memory are all accessed via
+     the same view(s) of the memory.
+  */
+  target.heapForSize = function(n,unsigned = true){
+    let ctor;
+    const c = (cache.memory && cache.heapSize === cache.memory.buffer.byteLength)
+          ? cache : heapWrappers();
+    switch(n){
+        case Int8Array: return c.HEAP8; case Uint8Array: return c.HEAP8U;
+        case Int16Array: return c.HEAP16; case Uint16Array: return c.HEAP16U;
+        case Int32Array: return c.HEAP32; case Uint32Array: return c.HEAP32U;
+        case 8:  return unsigned ? c.HEAP8U : c.HEAP8;
+        case 16: return unsigned ? c.HEAP16U : c.HEAP16;
+        case 32: return unsigned ? c.HEAP32U : c.HEAP32;
+        case 64:
+          if(c.HEAP64) return unsigned ? c.HEAP64U : c.HEAP64;
+          break;
+        default:
+          if(target.bigIntEnabled){
+            if(n===globalThis['BigUint64Array']) return c.HEAP64U;
+            else if(n===globalThis['BigInt64Array']) return c.HEAP64;
+            break;
+          }
+    }
+    toss("Invalid heapForSize() size: expecting 8, 16, 32,",
+         "or (if BigInt is enabled) 64.");
+  };
+
+  /**
+     Returns the WASM-exported "indirect function table."
+  */
+  target.functionTable = function(){
+    return target.exports.__indirect_function_table;
+    /** -----------------^^^^^ "seems" to be a standardized export name.
+        From Emscripten release notes from 2020-09-10:
+        - Use `__indirect_function_table` as the import name for the
+        table, which is what LLVM does.
+    */
+  };
+
+  /**
+     Given a function pointer, returns the WASM function table entry
+     if found, else returns a falsy value: undefined if fptr is out of
+     range or null if it's in range but the table entry is empty.
+  */
+  target.functionEntry = function(fptr){
+    const ft = target.functionTable();
+    return fptr < ft.length ? ft.get(fptr) : undefined;
+  };
+
+  /**
+     Creates a WASM function which wraps the given JS function and
+     returns the JS binding of that WASM function. The signature
+     string must be the Jaccwabyt-format or Emscripten
+     addFunction()-format function signature string. In short: in may
+     have one of the following formats:
+
+     - Emscripten: `"x..."`, where the first x is a letter representing
+       the result type and subsequent letters represent the argument
+       types. Functions with no arguments have only a single
+       letter. See below.
+
+     - Jaccwabyt: `"x(...)"` where `x` is the letter representing the
+       result type and letters in the parens (if any) represent the
+       argument types. Functions with no arguments use `x()`. See
+       below.
+
+     Supported letters:
+
+     - `i` = int32
+     - `p` = int32 ("pointer")
+     - `j` = int64
+     - `f` = float32
+     - `d` = float64
+     - `v` = void, only legal for use as the result type
+
+     It throws if an invalid signature letter is used.
+
+     Jaccwabyt-format signatures support some additional letters which
+     have no special meaning here but (in this context) act as aliases
+     for other letters:
+
+     - `s`, `P`: same as `p`
+
+     Sidebar: this code is developed together with Jaccwabyt, thus the
+     support for its signature format.
+
+     The arguments may be supplied in either order: (func,sig) or
+     (sig,func).
+  */
+  target.jsFuncToWasm = function f(func, sig){
+    /** Attribution: adapted up from Emscripten-generated glue code,
+        refactored primarily for efficiency's sake, eliminating
+        call-local functions and superfluous temporary arrays. */
+    if(!f._){/*static init...*/
+      f._ = {
+        // Map of signature letters to type IR values
+        sigTypes: Object.assign(Object.create(null),{
+          i: 'i32', p: 'i32', P: 'i32', s: 'i32',
+          j: 'i64', f: 'f32', d: 'f64'
+        }),
+        // Map of type IR values to WASM type code values
+        typeCodes: Object.assign(Object.create(null),{
+          f64: 0x7c, f32: 0x7d, i64: 0x7e, i32: 0x7f
+        }),
+        /** Encodes n, which must be <2^14 (16384), into target array
+            tgt, as a little-endian value, using the given method
+            ('push' or 'unshift'). */
+        uleb128Encode: function(tgt, method, n){
+          if(n<128) tgt[method](n);
+          else tgt[method]( (n % 128) | 128, n>>7);
+        },
+        /** Intentionally-lax pattern for Jaccwabyt-format function
+            pointer signatures, the intent of which is simply to
+            distinguish them from Emscripten-format signatures. The
+            downstream checks are less lax. */
+        rxJSig: /^(\w)\((\w*)\)$/,
+        /** Returns the parameter-value part of the given signature
+            string. */
+        sigParams: function(sig){
+          const m = f._.rxJSig.exec(sig);
+          return m ? m[2] : sig.substr(1);
+        },
+        /** Returns the IR value for the given letter or throws
+            if the letter is invalid. */
+        letterType: (x)=>f._.sigTypes[x] || toss("Invalid signature letter:",x),
+        /** Returns an object describing the result type and parameter
+            type(s) of the given function signature, or throws if the
+            signature is invalid. */
+        /******** // only valid for use with the WebAssembly.Function ctor, which
+                  // is not yet documented on MDN.
+        sigToWasm: function(sig){
+          const rc = {parameters:[], results: []};
+          if('v'!==sig[0]) rc.results.push(f.sigTypes(sig[0]));
+          for(const x of f._.sigParams(sig)){
+            rc.parameters.push(f._.typeCodes(x));
+          }
+          return rc;
+        },************/
+        /** Pushes the WASM data type code for the given signature
+            letter to the given target array. Throws if letter is
+            invalid. */
+        pushSigType: (dest, letter)=>dest.push(f._.typeCodes[f._.letterType(letter)])
+      };
+    }/*static init*/
+    if('string'===typeof func){
+      const x = sig;
+      sig = func;
+      func = x;
+    }
+    const sigParams = f._.sigParams(sig);
+    const wasmCode = [0x01/*count: 1*/, 0x60/*function*/];
+    f._.uleb128Encode(wasmCode, 'push', sigParams.length);
+    for(const x of sigParams) f._.pushSigType(wasmCode, x);
+    if('v'===sig[0]) wasmCode.push(0);
+    else{
+      wasmCode.push(1);
+      f._.pushSigType(wasmCode, sig[0]);
+    }
+    f._.uleb128Encode(wasmCode, 'unshift', wasmCode.length)/* type section length */;
+    wasmCode.unshift(
+      0x00, 0x61, 0x73, 0x6d, /* magic: "\0asm" */
+      0x01, 0x00, 0x00, 0x00, /* version: 1 */
+      0x01 /* type section code */
+    );
+    wasmCode.push(
+      /* import section: */ 0x02, 0x07,
+      /* (import "e" "f" (func 0 (type 0))): */
+      0x01, 0x01, 0x65, 0x01, 0x66, 0x00, 0x00,
+      /* export section: */ 0x07, 0x05,
+      /* (export "f" (func 0 (type 0))): */
+      0x01, 0x01, 0x66, 0x00, 0x00
+    );
+    return (new WebAssembly.Instance(
+      new WebAssembly.Module(new Uint8Array(wasmCode)), {
+        e: { f: func }
+      })).exports['f'];
+  }/*jsFuncToWasm()*/;
+
+  /**
+     Documented as target.installFunction() except for the 3rd
+     argument: if truthy, the newly-created function pointer
+     is stashed in the current scoped-alloc scope and will be
+     cleaned up at the matching scopedAllocPop(), else it
+     is not stashed there.
+   */
+  const __installFunction = function f(func, sig, scoped){
+    if(scoped && !cache.scopedAlloc.length){
+      toss("No scopedAllocPush() scope is active.");
+    }
+    if('string'===typeof func){
+      const x = sig;
+      sig = func;
+      func = x;
+    }
+    if('string'!==typeof sig || !(func instanceof Function)){
+      toss("Invalid arguments: expecting (function,signature) "+
+           "or (signature,function).");
+    }
+    const ft = target.functionTable();
+    const oldLen = ft.length;
+    let ptr;
+    while(cache.freeFuncIndexes.length){
+      ptr = cache.freeFuncIndexes.pop();
+      if(ft.get(ptr)){ /* Table was modified via a different API */
+        ptr = null;
+        continue;
+      }else{
+        break;
+      }
+    }
+    if(!ptr){
+      ptr = oldLen;
+      ft.grow(1);
+    }
+    try{
+      /*this will only work if func is a WASM-exported function*/
+      ft.set(ptr, func);
+      if(scoped){
+        cache.scopedAlloc[cache.scopedAlloc.length-1].push(ptr);
+      }
+      return ptr;
+    }catch(e){
+      if(!(e instanceof TypeError)){
+        if(ptr===oldLen) cache.freeFuncIndexes.push(oldLen);
+        throw e;
+      }
+    }
+    // It's not a WASM-exported function, so compile one...
+    try {
+      const fptr = target.jsFuncToWasm(func, sig);
+      ft.set(ptr, fptr);
+      if(scoped){
+        cache.scopedAlloc[cache.scopedAlloc.length-1].push(ptr);
+      }
+    }catch(e){
+      if(ptr===oldLen) cache.freeFuncIndexes.push(oldLen);
+      throw e;
+    }
+    return ptr;
+  };
+
+  /**
+     Expects a JS function and signature, exactly as for
+     this.jsFuncToWasm(). It uses that function to create a
+     WASM-exported function, installs that function to the next
+     available slot of this.functionTable(), and returns the
+     function's index in that table (which acts as a pointer to that
+     function). The returned pointer can be passed to
+     uninstallFunction() to uninstall it and free up the table slot for
+     reuse.
+
+     If passed (string,function) arguments then it treats the first
+     argument as the signature and second as the function.
+
+     As a special case, if the passed-in function is a WASM-exported
+     function then the signature argument is ignored and func is
+     installed as-is, without requiring re-compilation/re-wrapping.
+
+     This function will propagate an exception if
+     WebAssembly.Table.grow() throws or this.jsFuncToWasm() throws.
+     The former case can happen in an Emscripten-compiled
+     environment when building without Emscripten's
+     `-sALLOW_TABLE_GROWTH` flag.
+
+     Sidebar: this function differs from Emscripten's addFunction()
+     _primarily_ in that it does not share that function's
+     undocumented behavior of reusing a function if it's passed to
+     addFunction() more than once, which leads to uninstallFunction()
+     breaking clients which do not take care to avoid that case:
+
+     https://github.com/emscripten-core/emscripten/issues/17323
+  */
+  target.installFunction = (func, sig)=>__installFunction(func, sig, false);
+
+  /**
+     Works exactly like installFunction() but requires that a
+     scopedAllocPush() is active and uninstalls the given function
+     when that alloc scope is popped via scopedAllocPop().
+     This is used for implementing JS/WASM function bindings which
+     should only persist for the life of a call into a single
+     C-side function.
+  */
+  target.scopedInstallFunction = (func, sig)=>__installFunction(func, sig, true);
+
+  /**
+     Requires a pointer value previously returned from
+     this.installFunction(). Removes that function from the WASM
+     function table, marks its table slot as free for re-use, and
+     returns that function. It is illegal to call this before
+     installFunction() has been called and results are undefined if
+     ptr was not returned by that function. The returned function
+     may be passed back to installFunction() to reinstall it.
+
+     To simplify certain use cases, if passed a falsy non-0 value
+     (noting that 0 is a valid function table index), this function
+     has no side effects and returns undefined.
+  */
+  target.uninstallFunction = function(ptr){
+    if(!ptr && 0!==ptr) return undefined;
+    const fi = cache.freeFuncIndexes;
+    const ft = target.functionTable();
+    fi.push(ptr);
+    const rc = ft.get(ptr);
+    ft.set(ptr, null);
+    return rc;
+  };
+
+  /**
+     Given a WASM heap memory address and a data type name in the form
+     (i8, i16, i32, i64, float (or f32), double (or f64)), this
+     fetches the numeric value from that address and returns it as a
+     number or, for the case of type='i64', a BigInt (noting that that
+     type triggers an exception if this.bigIntEnabled is
+     falsy). Throws if given an invalid type.
+
+     If the first argument is an array, it is treated as an array of
+     addresses and the result is an array of the values from each of
+     those address, using the same 2nd argument for determining the
+     value type to fetch.
+
+     As a special case, if type ends with a `*`, it is considered to
+     be a pointer type and is treated as the WASM numeric type
+     appropriate for the pointer size (`i32`).
+
+     While likely not obvious, this routine and its poke()
+     counterpart are how pointer-to-value _output_ parameters
+     in WASM-compiled C code can be interacted with:
+
+     ```
+     const ptr = alloc(4);
+     poke(ptr, 0, 'i32'); // clear the ptr's value
+     aCFuncWithOutputPtrToInt32Arg( ptr ); // e.g. void foo(int *x);
+     const result = peek(ptr, 'i32'); // fetch ptr's value
+     dealloc(ptr);
+     ```
+
+     scopedAlloc() and friends can be used to make handling of
+     `ptr` safe against leaks in the case of an exception:
+
+     ```
+     let result;
+     const scope = scopedAllocPush();
+     try{
+       const ptr = scopedAlloc(4);
+       poke(ptr, 0, 'i32');
+       aCFuncWithOutputPtrArg( ptr );
+       result = peek(ptr, 'i32');
+     }finally{
+       scopedAllocPop(scope);
+     }
+     ```
+
+     As a rule poke() must be called to set (typically zero
+     out) the pointer's value, else it will contain an essentially
+     random value.
+
+     ACHTUNG: calling this often, e.g. in a loop, can have a noticably
+     painful impact on performance. Rather than doing so, use
+     heapForSize() to fetch the heap object and read directly from it.
+
+     See: poke()
+  */
+  target.peek = function f(ptr, type='i8'){
+    if(type.endsWith('*')) type = ptrIR;
+    const c = (cache.memory && cache.heapSize === cache.memory.buffer.byteLength)
+          ? cache : heapWrappers();
+    const list = Array.isArray(ptr) ? [] : undefined;
+    let rc;
+    do{
+      if(list) ptr = arguments[0].shift();
+      switch(type){
+          case 'i1':
+          case 'i8': rc = c.HEAP8[ptr>>0]; break;
+          case 'i16': rc = c.HEAP16[ptr>>1]; break;
+          case 'i32': rc = c.HEAP32[ptr>>2]; break;
+          case 'float': case 'f32': rc = c.HEAP32F[ptr>>2]; break;
+          case 'double': case 'f64': rc = Number(c.HEAP64F[ptr>>3]); break;
+          case 'i64':
+            if(target.bigIntEnabled){
+              rc = BigInt(c.HEAP64[ptr>>3]);
+              break;
+            }
+            /* fallthru */
+          default:
+            toss('Invalid type for peek():',type);
+      }
+      if(list) list.push(rc);
+    }while(list && arguments[0].length);
+    return list || rc;
+  };
+
+  /**
+     The counterpart of peek(), this sets a numeric value at the given
+     WASM heap address, using the 3rd argument to define how many
+     bytes are written. Throws if given an invalid type. See peek()
+     for details about the `type` argument. If the 3rd argument ends
+     with `*` then it is treated as a pointer type and this function
+     behaves as if the 3rd argument were `i32`.
+
+     If the first argument is an array, it is treated like a list
+     of pointers and the given value is written to each one.
+
+     Returns `this`. (Prior to 2022-12-09 it returned this function.)
+
+     ACHTUNG: calling this often, e.g. in a loop to populate a large
+     chunk of memory, can have a noticably painful impact on
+     performance. Rather than doing so, use heapForSize() to fetch the
+     heap object and assign directly to it or use the heap's set()
+     method.
+  */
+  target.poke = function(ptr, value, type='i8'){
+    if (type.endsWith('*')) type = ptrIR;
+    const c = (cache.memory && cache.heapSize === cache.memory.buffer.byteLength)
+          ? cache : heapWrappers();
+    for(const p of (Array.isArray(ptr) ? ptr : [ptr])){
+      switch (type) {
+          case 'i1':
+          case 'i8': c.HEAP8[p>>0] = value; continue;
+          case 'i16': c.HEAP16[p>>1] = value; continue;
+          case 'i32': c.HEAP32[p>>2] = value; continue;
+          case 'float': case 'f32': c.HEAP32F[p>>2] = value; continue;
+          case 'double': case 'f64': c.HEAP64F[p>>3] = value; continue;
+          case 'i64':
+            if(c.HEAP64){
+              c.HEAP64[p>>3] = BigInt(value);
+              continue;
+            }
+            /* fallthru */
+          default:
+            toss('Invalid type for poke(): ' + type);
+      }
+    }
+    return this;
+  };
+
+  /**
+     Convenience form of peek() intended for fetching
+     pointer-to-pointer values. If passed a single non-array argument
+     it returns the value of that one pointer address. If passed
+     multiple arguments, or a single array of arguments, it returns an
+     array of their values.
+  */
+  target.peekPtr = (...ptr)=>target.peek( (1===ptr.length ? ptr[0] : ptr), ptrIR );
+
+  /**
+     A variant of poke() intended for setting pointer-to-pointer
+     values. Its differences from poke() are that (1) it defaults to a
+     value of 0 and (2) it always writes to the pointer-sized heap
+     view.
+  */
+  target.pokePtr = (ptr, value=0)=>target.poke(ptr, value, ptrIR);
+
+  /**
+     Convenience form of peek() intended for fetching i8 values. If
+     passed a single non-array argument it returns the value of that
+     one pointer address. If passed multiple arguments, or a single
+     array of arguments, it returns an array of their values.
+  */
+  target.peek8 = (...ptr)=>target.peek( (1===ptr.length ? ptr[0] : ptr), 'i8' );
+  /**
+     Convience form of poke() intended for setting individual bytes.
+     Its difference from poke() is that it always writes to the
+     i8-sized heap view.
+  */
+  target.poke8 = (ptr, value)=>target.poke(ptr, value, 'i8');
+  /** i16 variant of peek8(). */
+  target.peek16 = (...ptr)=>target.peek( (1===ptr.length ? ptr[0] : ptr), 'i16' );
+  /** i16 variant of poke8(). */
+  target.poke16 = (ptr, value)=>target.poke(ptr, value, 'i16');
+  /** i32 variant of peek8(). */
+  target.peek32 = (...ptr)=>target.peek( (1===ptr.length ? ptr[0] : ptr), 'i32' );
+  /** i32 variant of poke8(). */
+  target.poke32 = (ptr, value)=>target.poke(ptr, value, 'i32');
+  /** i64 variant of peek8(). Will throw if this build is not
+      configured for BigInt support. */
+  target.peek64 = (...ptr)=>target.peek( (1===ptr.length ? ptr[0] : ptr), 'i64' );
+  /** i64 variant of poke8(). Will throw if this build is not
+      configured for BigInt support. Note that this returns
+      a BigInt-type value, not a Number-type value. */
+  target.poke64 = (ptr, value)=>target.poke(ptr, value, 'i64');
+  /** f32 variant of peek8(). */
+  target.peek32f = (...ptr)=>target.peek( (1===ptr.length ? ptr[0] : ptr), 'f32' );
+  /** f32 variant of poke8(). */
+  target.poke32f = (ptr, value)=>target.poke(ptr, value, 'f32');
+  /** f64 variant of peek8(). */
+  target.peek64f = (...ptr)=>target.peek( (1===ptr.length ? ptr[0] : ptr), 'f64' );
+  /** f64 variant of poke8(). */
+  target.poke64f = (ptr, value)=>target.poke(ptr, value, 'f64');
+
+  /** Deprecated alias for getMemValue() */
+  target.getMemValue = target.peek;
+  /** Deprecated alias for peekPtr() */
+  target.getPtrValue = target.peekPtr;
+  /** Deprecated alias for poke() */
+  target.setMemValue = target.poke;
+  /** Deprecated alias for pokePtr() */
+  target.setPtrValue = target.pokePtr;
+
+  /**
+     Returns true if the given value appears to be legal for use as
+     a WASM pointer value. Its _range_ of values is not (cannot be)
+     validated except to ensure that it is a 32-bit integer with a
+     value of 0 or greater. Likewise, it cannot verify whether the
+     value actually refers to allocated memory in the WASM heap.
+  */
+  target.isPtr32 = (ptr)=>('number'===typeof ptr && (ptr===(ptr|0)) && ptr>=0);
+
+  /**
+     isPtr() is an alias for isPtr32(). If/when 64-bit WASM pointer
+     support becomes widespread, it will become an alias for either
+     isPtr32() or the as-yet-hypothetical isPtr64(), depending on a
+     configuration option.
+  */
+  target.isPtr = target.isPtr32;
+
+  /**
+     Expects ptr to be a pointer into the WASM heap memory which
+     refers to a NUL-terminated C-style string encoded as UTF-8.
+     Returns the length, in bytes, of the string, as for `strlen(3)`.
+     As a special case, if !ptr or if it's not a pointer then it
+     returns `null`. Throws if ptr is out of range for
+     target.heap8u().
+  */
+  target.cstrlen = function(ptr){
+    if(!ptr || !target.isPtr(ptr)) return null;
+    const h = heapWrappers().HEAP8U;
+    let pos = ptr;
+    for( ; h[pos] !== 0; ++pos ){}
+    return pos - ptr;
+  };
+
+  /** Internal helper to use in operations which need to distinguish
+      between SharedArrayBuffer heap memory and non-shared heap. */
+  const __SAB = ('undefined'===typeof SharedArrayBuffer)
+        ? function(){} : SharedArrayBuffer;
+  const __utf8Decode = function(arrayBuffer, begin, end){
+    return cache.utf8Decoder.decode(
+      (arrayBuffer.buffer instanceof __SAB)
+        ? arrayBuffer.slice(begin, end)
+        : arrayBuffer.subarray(begin, end)
+    );
+  };
+
+  /**
+     Expects ptr to be a pointer into the WASM heap memory which
+     refers to a NUL-terminated C-style string encoded as UTF-8. This
+     function counts its byte length using cstrlen() then returns a
+     JS-format string representing its contents. As a special case, if
+     ptr is falsy or not a pointer, `null` is returned.
+  */
+  target.cstrToJs = function(ptr){
+    const n = target.cstrlen(ptr);
+    return n ? __utf8Decode(heapWrappers().HEAP8U, ptr, ptr+n) : (null===n ? n : "");
+  };
+
+  /**
+     Given a JS string, this function returns its UTF-8 length in
+     bytes. Returns null if str is not a string.
+  */
+  target.jstrlen = function(str){
+    /** Attribution: derived from Emscripten's lengthBytesUTF8() */
+    if('string'!==typeof str) return null;
+    const n = str.length;
+    let len = 0;
+    for(let i = 0; i < n; ++i){
+      let u = str.charCodeAt(i);
+      if(u>=0xd800 && u<=0xdfff){
+        u = 0x10000 + ((u & 0x3FF) << 10) | (str.charCodeAt(++i) & 0x3FF);
+      }
+      if(u<=0x7f) ++len;
+      else if(u<=0x7ff) len += 2;
+      else if(u<=0xffff) len += 3;
+      else len += 4;
+    }
+    return len;
+  };
+
+  /**
+     Encodes the given JS string as UTF8 into the given TypedArray
+     tgt, starting at the given offset and writing, at most, maxBytes
+     bytes (including the NUL terminator if addNul is true, else no
+     NUL is added). If it writes any bytes at all and addNul is true,
+     it always NUL-terminates the output, even if doing so means that
+     the NUL byte is all that it writes.
+
+     If maxBytes is negative (the default) then it is treated as the
+     remaining length of tgt, starting at the given offset.
+
+     If writing the last character would surpass the maxBytes count
+     because the character is multi-byte, that character will not be
+     written (as opposed to writing a truncated multi-byte character).
+     This can lead to it writing as many as 3 fewer bytes than
+     maxBytes specifies.
+
+     Returns the number of bytes written to the target, _including_
+     the NUL terminator (if any). If it returns 0, it wrote nothing at
+     all, which can happen if:
+
+     - str is empty and addNul is false.
+     - offset < 0.
+     - maxBytes == 0.
+     - maxBytes is less than the byte length of a multi-byte str[0].
+
+     Throws if tgt is not an Int8Array or Uint8Array.
+
+     Design notes:
+
+     - In C's strcpy(), the destination pointer is the first
+       argument. That is not the case here primarily because the 3rd+
+       arguments are all referring to the destination, so it seems to
+       make sense to have them grouped with it.
+
+     - Emscripten's counterpart of this function (stringToUTF8Array())
+       returns the number of bytes written sans NUL terminator. That
+       is, however, ambiguous: str.length===0 or maxBytes===(0 or 1)
+       all cause 0 to be returned.
+  */
+  target.jstrcpy = function(jstr, tgt, offset = 0, maxBytes = -1, addNul = true){
+    /** Attribution: the encoding bits are taken from Emscripten's
+        stringToUTF8Array(). */
+    if(!tgt || (!(tgt instanceof Int8Array) && !(tgt instanceof Uint8Array))){
+      toss("jstrcpy() target must be an Int8Array or Uint8Array.");
+    }
+    if(maxBytes<0) maxBytes = tgt.length - offset;
+    if(!(maxBytes>0) || !(offset>=0)) return 0;
+    let i = 0, max = jstr.length;
+    const begin = offset, end = offset + maxBytes - (addNul ? 1 : 0);
+    for(; i < max && offset < end; ++i){
+      let u = jstr.charCodeAt(i);
+      if(u>=0xd800 && u<=0xdfff){
+        u = 0x10000 + ((u & 0x3FF) << 10) | (jstr.charCodeAt(++i) & 0x3FF);
+      }
+      if(u<=0x7f){
+        if(offset >= end) break;
+        tgt[offset++] = u;
+      }else if(u<=0x7ff){
+        if(offset + 1 >= end) break;
+        tgt[offset++] = 0xC0 | (u >> 6);
+        tgt[offset++] = 0x80 | (u & 0x3f);
+      }else if(u<=0xffff){
+        if(offset + 2 >= end) break;
+        tgt[offset++] = 0xe0 | (u >> 12);
+        tgt[offset++] = 0x80 | ((u >> 6) & 0x3f);
+        tgt[offset++] = 0x80 | (u & 0x3f);
+      }else{
+        if(offset + 3 >= end) break;
+        tgt[offset++] = 0xf0 | (u >> 18);
+        tgt[offset++] = 0x80 | ((u >> 12) & 0x3f);
+        tgt[offset++] = 0x80 | ((u >> 6) & 0x3f);
+        tgt[offset++] = 0x80 | (u & 0x3f);
+      }
+    }
+    if(addNul) tgt[offset++] = 0;
+    return offset - begin;
+  };
+
+  /**
+     Works similarly to C's strncpy(), copying, at most, n bytes (not
+     characters) from srcPtr to tgtPtr. It copies until n bytes have
+     been copied or a 0 byte is reached in src. _Unlike_ strncpy(), it
+     returns the number of bytes it assigns in tgtPtr, _including_ the
+     NUL byte (if any). If n is reached before a NUL byte in srcPtr,
+     tgtPtr will _not_ be NULL-terminated. If a NUL byte is reached
+     before n bytes are copied, tgtPtr will be NUL-terminated.
+
+     If n is negative, cstrlen(srcPtr)+1 is used to calculate it, the
+     +1 being for the NUL byte.
+
+     Throws if tgtPtr or srcPtr are falsy. Results are undefined if:
+
+     - either is not a pointer into the WASM heap or
+
+     - srcPtr is not NUL-terminated AND n is less than srcPtr's
+       logical length.
+
+     ACHTUNG: it is possible to copy partial multi-byte characters
+     this way, and converting such strings back to JS strings will
+     have undefined results.
+  */
+  target.cstrncpy = function(tgtPtr, srcPtr, n){
+    if(!tgtPtr || !srcPtr) toss("cstrncpy() does not accept NULL strings.");
+    if(n<0) n = target.cstrlen(strPtr)+1;
+    else if(!(n>0)) return 0;
+    const heap = target.heap8u();
+    let i = 0, ch;
+    for(; i < n && (ch = heap[srcPtr+i]); ++i){
+      heap[tgtPtr+i] = ch;
+    }
+    if(i<n) heap[tgtPtr + i++] = 0;
+    return i;
+  };
+
+  /**
+     For the given JS string, returns a Uint8Array of its contents
+     encoded as UTF-8. If addNul is true, the returned array will have
+     a trailing 0 entry, else it will not.
+  */
+  target.jstrToUintArray = (str, addNul=false)=>{
+    return cache.utf8Encoder.encode(addNul ? (str+"\0") : str);
+    // Or the hard way...
+    /** Attribution: derived from Emscripten's stringToUTF8Array() */
+    //const a = [], max = str.length;
+    //let i = 0, pos = 0;
+    //for(; i < max; ++i){
+    //  let u = str.charCodeAt(i);
+    //  if(u>=0xd800 && u<=0xdfff){
+    //    u = 0x10000 + ((u & 0x3FF) << 10) | (str.charCodeAt(++i) & 0x3FF);
+    //  }
+    //  if(u<=0x7f) a[pos++] = u;
+    //  else if(u<=0x7ff){
+    //    a[pos++] = 0xC0 | (u >> 6);
+    //    a[pos++] = 0x80 | (u & 63);
+    //  }else if(u<=0xffff){
+    //    a[pos++] = 0xe0 | (u >> 12);
+    //    a[pos++] = 0x80 | ((u >> 6) & 63);
+    //    a[pos++] = 0x80 | (u & 63);
+    //  }else{
+    //    a[pos++] = 0xf0 | (u >> 18);
+    //    a[pos++] = 0x80 | ((u >> 12) & 63);
+    //    a[pos++] = 0x80 | ((u >> 6) & 63);
+    //    a[pos++] = 0x80 | (u & 63);
+    //  }
+    // }
+    // return new Uint8Array(a);
+  };
+
+  const __affirmAlloc = (obj,funcName)=>{
+    if(!(obj.alloc instanceof Function) ||
+       !(obj.dealloc instanceof Function)){
+      toss("Object is missing alloc() and/or dealloc() function(s)",
+           "required by",funcName+"().");
+    }
+  };
+
+  const __allocCStr = function(jstr, returnWithLength, allocator, funcName){
+    __affirmAlloc(target, funcName);
+    if('string'!==typeof jstr) return null;
+    if(0){/* older impl, possibly more widely compatible? */
+      const n = target.jstrlen(jstr),
+            ptr = allocator(n+1);
+      target.jstrcpy(jstr, target.heap8u(), ptr, n+1, true);
+      return returnWithLength ? [ptr, n] : ptr;
+    }else{/* newer, (probably) faster and (certainly) simpler impl */
+      const u = cache.utf8Encoder.encode(jstr),
+            ptr = allocator(u.length+1),
+            heap = heapWrappers().HEAP8U;
+      heap.set(u, ptr);
+      heap[ptr + u.length] = 0;
+      return returnWithLength ? [ptr, u.length] : ptr;
+    }
+  };
+
+  /**
+     Uses target.alloc() to allocate enough memory for jstrlen(jstr)+1
+     bytes of memory, copies jstr to that memory using jstrcpy(),
+     NUL-terminates it, and returns the pointer to that C-string.
+     Ownership of the pointer is transfered to the caller, who must
+     eventually pass the pointer to dealloc() to free it.
+
+     If passed a truthy 2nd argument then its return semantics change:
+     it returns [ptr,n], where ptr is the C-string's pointer and n is
+     its cstrlen().
+
+     Throws if `target.alloc` or `target.dealloc` are not functions.
+  */
+  target.allocCString =
+    (jstr, returnWithLength=false)=>__allocCStr(jstr, returnWithLength,
+                                                target.alloc, 'allocCString()');
+
+  /**
+     Starts an "allocation scope." All allocations made using
+     scopedAlloc() are recorded in this scope and are freed when the
+     value returned from this function is passed to
+     scopedAllocPop().
+
+     This family of functions requires that the API's object have both
+     `alloc()` and `dealloc()` methods, else this function will throw.
+
+     Intended usage:
+
+     ```
+     const scope = scopedAllocPush();
+     try {
+       const ptr1 = scopedAlloc(100);
+       const ptr2 = scopedAlloc(200);
+       const ptr3 = scopedAlloc(300);
+       ...
+       // Note that only allocations made via scopedAlloc()
+       // are managed by this allocation scope.
+     }finally{
+       scopedAllocPop(scope);
+     }
+     ```
+
+     The value returned by this function must be treated as opaque by
+     the caller, suitable _only_ for passing to scopedAllocPop().
+     Its type and value are not part of this function's API and may
+     change in any given version of this code.
+
+     `scopedAlloc.level` can be used to determine how many scoped
+     alloc levels are currently active.
+   */
+  target.scopedAllocPush = function(){
+    __affirmAlloc(target, 'scopedAllocPush');
+    const a = [];
+    cache.scopedAlloc.push(a);
+    return a;
+  };
+
+  /**
+     Cleans up all allocations made using scopedAlloc() in the context
+     of the given opaque state object, which must be a value returned
+     by scopedAllocPush(). See that function for an example of how to
+     use this function.
+
+     Though scoped allocations are managed like a stack, this API
+     behaves properly if allocation scopes are popped in an order
+     other than the order they were pushed.
+
+     If called with no arguments, it pops the most recent
+     scopedAllocPush() result:
+
+     ```
+     scopedAllocPush();
+     try{ ... } finally { scopedAllocPop(); }
+     ```
+
+     It's generally recommended that it be passed an explicit argument
+     to help ensure that push/push are used in matching pairs, but in
+     trivial code that may be a non-issue.
+  */
+  target.scopedAllocPop = function(state){
+    __affirmAlloc(target, 'scopedAllocPop');
+    const n = arguments.length
+          ? cache.scopedAlloc.indexOf(state)
+          : cache.scopedAlloc.length-1;
+    if(n<0) toss("Invalid state object for scopedAllocPop().");
+    if(0===arguments.length) state = cache.scopedAlloc[n];
+    cache.scopedAlloc.splice(n,1);
+    for(let p; (p = state.pop()); ){
+      if(target.functionEntry(p)){
+        //console.warn("scopedAllocPop() uninstalling function",p);
+        target.uninstallFunction(p);
+      }
+      else target.dealloc(p);
+    }
+  };
+
+  /**
+     Allocates n bytes of memory using this.alloc() and records that
+     fact in the state for the most recent call of scopedAllocPush().
+     Ownership of the memory is given to scopedAllocPop(), which
+     will clean it up when it is called. The memory _must not_ be
+     passed to this.dealloc(). Throws if this API object is missing
+     the required `alloc()` or `dealloc()` functions or no scoped
+     alloc is active.
+
+     See scopedAllocPush() for an example of how to use this function.
+
+     The `level` property of this function can be queried to query how
+     many scoped allocation levels are currently active.
+
+     See also: scopedAllocPtr(), scopedAllocCString()
+  */
+  target.scopedAlloc = function(n){
+    if(!cache.scopedAlloc.length){
+      toss("No scopedAllocPush() scope is active.");
+    }
+    const p = target.alloc(n);
+    cache.scopedAlloc[cache.scopedAlloc.length-1].push(p);
+    return p;
+  };
+
+  Object.defineProperty(target.scopedAlloc, 'level', {
+    configurable: false, enumerable: false,
+    get: ()=>cache.scopedAlloc.length,
+    set: ()=>toss("The 'active' property is read-only.")
+  });
+
+  /**
+     Works identically to allocCString() except that it allocates the
+     memory using scopedAlloc().
+
+     Will throw if no scopedAllocPush() call is active.
+  */
+  target.scopedAllocCString =
+    (jstr, returnWithLength=false)=>__allocCStr(jstr, returnWithLength,
+                                                target.scopedAlloc, 'scopedAllocCString()');
+
+  // impl for allocMainArgv() and scopedAllocMainArgv().
+  const __allocMainArgv = function(isScoped, list){
+    const pList = target[
+      isScoped ? 'scopedAlloc' : 'alloc'
+    ]((list.length + 1) * target.ptrSizeof);
+    let i = 0;
+    list.forEach((e)=>{
+      target.pokePtr(pList + (target.ptrSizeof * i++),
+                         target[
+                           isScoped ? 'scopedAllocCString' : 'allocCString'
+                         ](""+e));
+    });
+    target.pokePtr(pList + (target.ptrSizeof * i), 0);
+    return pList;
+  };
+
+  /**
+     Creates an array, using scopedAlloc(), suitable for passing to a
+     C-level main() routine. The input is a collection with a length
+     property and a forEach() method. A block of memory
+     (list.length+1) entries long is allocated and each pointer-sized
+     block of that memory is populated with a scopedAllocCString()
+     conversion of the (""+value) of each element, with the exception
+     that the final entry is a NULL pointer. Returns a pointer to the
+     start of the list, suitable for passing as the 2nd argument to a
+     C-style main() function.
+
+     Throws if scopedAllocPush() is not active.
+
+     Design note: the returned array is allocated with an extra NULL
+     pointer entry to accommodate certain APIs, but client code which
+     does not need that functionality should treat the returned array
+     as list.length entries long.
+  */
+  target.scopedAllocMainArgv = (list)=>__allocMainArgv(true, list);
+
+  /**
+     Identical to scopedAllocMainArgv() but uses alloc() instead of
+     scopedAlloc().
+  */
+  target.allocMainArgv = (list)=>__allocMainArgv(false, list);
+
+  /**
+     Expects to be given a C-style string array and its length. It
+     returns a JS array of strings and/or nulls: any entry in the
+     pArgv array which is NULL results in a null entry in the result
+     array. If argc is 0 then an empty array is returned.
+
+     Results are undefined if any entry in the first argc entries of
+     pArgv are neither 0 (NULL) nor legal UTF-format C strings.
+
+     To be clear, the expected C-style arguments to be passed to this
+     function are `(int, char **)` (optionally const-qualified).
+  */
+  target.cArgvToJs = (argc, pArgv)=>{
+    const list = [];
+    for(let i = 0; i < argc; ++i){
+      const arg = target.peekPtr(pArgv + (target.ptrSizeof * i));
+      list.push( arg ? target.cstrToJs(arg) : null );
+    }
+    return list;
+  };
+
+  /**
+     Wraps function call func() in a scopedAllocPush() and
+     scopedAllocPop() block, such that all calls to scopedAlloc() and
+     friends from within that call will have their memory freed
+     automatically when func() returns. If func throws or propagates
+     an exception, the scope is still popped, otherwise it returns the
+     result of calling func().
+  */
+  target.scopedAllocCall = function(func){
+    target.scopedAllocPush();
+    try{ return func() } finally{ target.scopedAllocPop() }
+  };
+
+  /** Internal impl for allocPtr() and scopedAllocPtr(). */
+  const __allocPtr = function(howMany, safePtrSize, method){
+    __affirmAlloc(target, method);
+    const pIr = safePtrSize ? 'i64' : ptrIR;
+    let m = target[method](howMany * (safePtrSize ? 8 : ptrSizeof));
+    target.poke(m, 0, pIr)
+    if(1===howMany){
+      return m;
+    }
+    const a = [m];
+    for(let i = 1; i < howMany; ++i){
+      m += (safePtrSize ? 8 : ptrSizeof);
+      a[i] = m;
+      target.poke(m, 0, pIr);
+    }
+    return a;
+  };
+
+  /**
+     Allocates one or more pointers as a single chunk of memory and
+     zeroes them out.
+
+     The first argument is the number of pointers to allocate. The
+     second specifies whether they should use a "safe" pointer size (8
+     bytes) or whether they may use the default pointer size
+     (typically 4 but also possibly 8).
+
+     How the result is returned depends on its first argument: if
+     passed 1, it returns the allocated memory address. If passed more
+     than one then an array of pointer addresses is returned, which
+     can optionally be used with "destructuring assignment" like this:
+
+     ```
+     const [p1, p2, p3] = allocPtr(3);
+     ```
+
+     ACHTUNG: when freeing the memory, pass only the _first_ result
+     value to dealloc(). The others are part of the same memory chunk
+     and must not be freed separately.
+
+     The reason for the 2nd argument is..
+
+     When one of the returned pointers will refer to a 64-bit value,
+     e.g. a double or int64, an that value must be written or fetched,
+     e.g. using poke() or peek(), it is important that
+     the pointer in question be aligned to an 8-byte boundary or else
+     it will not be fetched or written properly and will corrupt or
+     read neighboring memory. It is only safe to pass false when the
+     client code is certain that it will only get/fetch 4-byte values
+     (or smaller).
+  */
+  target.allocPtr =
+    (howMany=1, safePtrSize=true)=>__allocPtr(howMany, safePtrSize, 'alloc');
+
+  /**
+     Identical to allocPtr() except that it allocates using scopedAlloc()
+     instead of alloc().
+  */
+  target.scopedAllocPtr =
+    (howMany=1, safePtrSize=true)=>__allocPtr(howMany, safePtrSize, 'scopedAlloc');
+
+  /**
+     If target.exports[name] exists, it is returned, else an
+     exception is thrown.
+  */
+  target.xGet = function(name){
+    return target.exports[name] || toss("Cannot find exported symbol:",name);
+  };
+
+  const __argcMismatch =
+        (f,n)=>toss(f+"() requires",n,"argument(s).");
+
+  /**
+     Looks up a WASM-exported function named fname from
+     target.exports. If found, it is called, passed all remaining
+     arguments, and its return value is returned to xCall's caller. If
+     not found, an exception is thrown. This function does no
+     conversion of argument or return types, but see xWrap() and
+     xCallWrapped() for variants which do.
+
+     If the first argument is a function is is assumed to be
+     a WASM-bound function and is used as-is instead of looking up
+     the function via xGet().
+
+     As a special case, if passed only 1 argument after the name and
+     that argument in an Array, that array's entries become the
+     function arguments. (This is not an ambiguous case because it's
+     not legal to pass an Array object to a WASM function.)
+  */
+  target.xCall = function(fname, ...args){
+    const f = (fname instanceof Function) ? fname : target.xGet(fname);
+    if(!(f instanceof Function)) toss("Exported symbol",fname,"is not a function.");
+    if(f.length!==args.length) __argcMismatch(((f===fname) ? f.name : fname),f.length)
+    /* This is arguably over-pedantic but we want to help clients keep
+       from shooting themselves in the foot when calling C APIs. */;
+    return (2===arguments.length && Array.isArray(arguments[1]))
+      ? f.apply(null, arguments[1])
+      : f.apply(null, args);
+  };
+
+  /**
+     State for use with xWrap()
+  */
+  cache.xWrap = Object.create(null);
+  cache.xWrap.convert = Object.create(null);
+  /** Map of type names to argument conversion functions. */
+  cache.xWrap.convert.arg = new Map;
+  /** Map of type names to return result conversion functions. */
+  cache.xWrap.convert.result = new Map;
+  const xArg = cache.xWrap.convert.arg, xResult = cache.xWrap.convert.result;
+
+  if(target.bigIntEnabled){
+    xArg.set('i64', (i)=>BigInt(i));
+  }
+  const __xArgPtr = 'i32' === ptrIR
+        ? ((i)=>(i | 0)) : ((i)=>(BigInt(i) | BigInt(0)));
+  xArg.set('i32', __xArgPtr )
+    .set('i16', (i)=>((i | 0) & 0xFFFF))
+    .set('i8', (i)=>((i | 0) & 0xFF))
+    .set('f32', (i)=>Number(i).valueOf())
+    .set('float', xArg.get('f32'))
+    .set('f64', xArg.get('f32'))
+    .set('double', xArg.get('f64'))
+    .set('int', xArg.get('i32'))
+    .set('null', (i)=>i)
+    .set(null, xArg.get('null'))
+    .set('**', __xArgPtr)
+    .set('*', __xArgPtr);
+  xResult.set('*', __xArgPtr)
+    .set('pointer', __xArgPtr)
+    .set('number', (v)=>Number(v))
+    .set('void', (v)=>undefined)
+    .set('null', (v)=>v)
+    .set(null, xResult.get('null'));
+
+  { /* Copy certain xArg[...] handlers to xResult[...] and
+       add pointer-style variants of them. */
+    const copyToResult = ['i8', 'i16', 'i32', 'int',
+                          'f32', 'float', 'f64', 'double'];
+    if(target.bigIntEnabled) copyToResult.push('i64');
+    const adaptPtr = xArg.get(ptrIR);
+    for(const t of copyToResult){
+      xArg.set(t+'*', adaptPtr);
+      xResult.set(t+'*', adaptPtr);
+      xResult.set(t, (xArg.get(t) || toss("Missing arg converter:",t)));
+    }
+  }
+
+  /**
+     In order for args of type string to work in various contexts in
+     the sqlite3 API, we need to pass them on as, variably, a C-string
+     or a pointer value. Thus for ARGs of type 'string' and
+     '*'/'pointer' we behave differently depending on whether the
+     argument is a string or not:
+
+     - If v is a string, scopeAlloc() a new C-string from it and return
+       that temp string's pointer.
+
+     - Else return the value from the arg adapter defined for ptrIR.
+
+     TODO? Permit an Int8Array/Uint8Array and convert it to a string?
+     Would that be too much magic concentrated in one place, ready to
+     backfire? We handle that at the client level in sqlite3 with a
+     custom argument converter.
+  */
+  const __xArgString = function(v){
+    if('string'===typeof v) return target.scopedAllocCString(v);
+    return v ? __xArgPtr(v) : null;
+  };
+  xArg.set('string', __xArgString)
+    .set('utf8', __xArgString)
+    .set('pointer', __xArgString);
+  //xArg.set('*', __xArgString);
+
+  xResult.set('string', (i)=>target.cstrToJs(i))
+    .set('utf8', xResult.get('string'))
+    .set('string:dealloc', (i)=>{
+      try { return i ? target.cstrToJs(i) : null }
+      finally{ target.dealloc(i) }
+    })
+    .set('utf8:dealloc', xResult.get('string:dealloc'))
+    .set('json', (i)=>JSON.parse(target.cstrToJs(i)))
+    .set('json:dealloc', (i)=>{
+      try{ return i ? JSON.parse(target.cstrToJs(i)) : null }
+      finally{ target.dealloc(i) }
+    });
+
+  /**
+     Internal-use-only base class for FuncPtrAdapter and potentially
+     additional stateful argument adapter classes.
+
+     Note that its main interface (convertArg()) is strictly
+     internal, not to be exposed to client code, as it may still
+     need re-shaping. Only the constructors of concrete subclasses
+     should be exposed to clients, and those in such a way that
+     does not hinder internal redesign of the convertArg()
+     interface.
+  */
+  const AbstractArgAdapter = class {
+    constructor(opt){
+      this.name = opt.name || 'unnamed adapter';
+    }
+    /**
+       Gets called via xWrap() to "convert" v to whatever type
+       this specific class supports.
+
+       argIndex is the argv index of _this_ argument in the
+       being-xWrap()'d call. argv is the current argument list
+       undergoing xWrap() argument conversion. argv entries to the
+       left of argIndex will have already undergone transformation and
+       those to the right will not have (they will have the values the
+       client-level code passed in, awaiting conversion). The RHS
+       indexes must never be relied upon for anything because their
+       types are indeterminate, whereas the LHS values will be
+       WASM-compatible values by the time this is called.
+    */
+    convertArg(v,argv,argIndex){
+      toss("AbstractArgAdapter must be subclassed.");
+    }
+  };
+
+  /**
+     An attempt at adding function pointer conversion support to
+     xWrap(). This type is recognized by xWrap() as a proxy for
+     converting a JS function to a C-side function, either
+     permanently, for the duration of a single call into the C layer,
+     or semi-contextual, where it may keep track of a single binding
+     for a given context and uninstall the binding if it's replaced.
+
+     The constructor requires an options object with these properties:
+
+     - name (optional): string describing the function binding. This
+       is solely for debugging and error-reporting purposes. If not
+       provided, an empty string is assumed.
+
+     - signature: a function signature string compatible with
+       jsFuncToWasm().
+
+     - bindScope (string): one of ('transient', 'context',
+       'singleton', 'permanent'). Bind scopes are:
+
+       - 'transient': it will convert JS functions to WASM only for
+         the duration of the xWrap()'d function call, using
+         scopedInstallFunction(). Before that call returns, the
+         WASM-side binding will be uninstalled.
+
+       - 'singleton': holds one function-pointer binding for this
+         instance. If it's called with a different function pointer,
+         it uninstalls the previous one after converting the new
+         value. This is only useful for use with "global" functions
+         which do not rely on any state other than this function
+         pointer. If the being-converted function pointer is intended
+         to be mapped to some sort of state object (e.g. an
+         `sqlite3*`) then "context" (see below) is the proper mode.
+
+       - 'context': similar to singleton mode but for a given
+         "context", where the context is a key provided by the user
+         and possibly dependent on a small amount of call-time
+         context. This mode is the default if bindScope is _not_ set
+         but a property named contextKey (described below) is.
+
+       - 'permanent': the function is installed and left there
+         forever. There is no way to recover its pointer address
+         later on.
+
+     - callProxy (function): if set, this must be a function which
+       will act as a proxy for any "converted" JS function. It is
+       passed the being-converted function value and must return
+       either that function or a function which acts on its
+       behalf. The returned function will be the one which gets
+       installed into the WASM function table. The proxy must perform
+       any required argument conversion (noting that it will be called
+       from C code, so will receive C-format arguments) before passing
+       them on to the being-converted function. Whether or not the
+       proxy itself must return a value depends on the context. If it
+       does, it must be a WASM-friendly value, as it will be returning
+       from a call made from native code.
+
+     - contextKey (function): is only used if bindScope is 'context'
+       or if bindScope is not set and this function is, in which case
+       'context' is assumed. This function gets bound to this object,
+       so its "this" is this object. It gets passed (argv,argIndex),
+       where argIndex is the index of _this_ function pointer in its
+       _wrapping_ function's arguments and argv is the _current_
+       still-being-xWrap()-processed args array. All arguments to the
+       left of argIndex will have been processed by xWrap() by the
+       time this is called. argv[argIndex] will be the value the user
+       passed in to the xWrap()'d function for the argument this
+       FuncPtrAdapter is mapped to. Arguments to the right of
+       argv[argIndex] will not yet have been converted before this is
+       called. The function must return a key which uniquely
+       identifies this function mapping context for _this_
+       FuncPtrAdapter instance (other instances are not considered),
+       taking into account that C functions often take some sort of
+       state object as one or more of their arguments. As an example,
+       if the xWrap()'d function takes `(int,T*,functionPtr,X*)` and
+       this FuncPtrAdapter is the argv[2]nd arg, contextKey(argv,2)
+       might return 'T@'+argv[1], or even just argv[1].  Note,
+       however, that the (X*) argument will not yet have been
+       processed by the time this is called and should not be used as
+       part of that key because its pre-conversion data type might be
+       unpredictable. Similarly, care must be taken with C-string-type
+       arguments: those to the left in argv will, when this is called,
+       be WASM pointers, whereas those to the right might (and likely
+       do) have another data type. When using C-strings in keys, never
+       use their pointers in the key because most C-strings in this
+       constellation are transient.
+
+     Yes, that ^^^ is quite awkward, but it's what we have.
+
+     The constructor only saves the above state for later, and does
+     not actually bind any functions. Its convertArg() method is
+     called via xWrap() to perform any bindings.
+
+     Shortcomings:
+
+     - These "reverse" bindings, i.e. calling into a JS-defined
+       function from a WASM-defined function (the generated proxy
+       wrapper), lack all type conversion support. That means, for
+       example, that...
+
+     - Function pointers which include C-string arguments may still
+       need a level of hand-written wrappers around them, depending on
+       how they're used, in order to provide the client with JS
+       strings. Alternately, clients will need to perform such conversions
+       on their own, e.g. using cstrtojs(). Or maybe we can find a way
+       to perform such conversions here, via addition of an xWrap()-style
+       function signature to the options argument.
+  */
+  xArg.FuncPtrAdapter = class FuncPtrAdapter extends AbstractArgAdapter {
+    constructor(opt) {
+      super(opt);
+      if(xArg.FuncPtrAdapter.warnOnUse){
+        console.warn('xArg.FuncPtrAdapter is an internal-only API',
+                     'and is not intended to be invoked from',
+                     'client-level code. Invoked with:',opt);
+      }
+      this.name = opt.name || "unnamed";
+      this.signature = opt.signature;
+      if(opt.contextKey instanceof Function){
+        this.contextKey = opt.contextKey;
+        if(!opt.bindScope) opt.bindScope = 'context';
+      }
+      this.bindScope = opt.bindScope
+        || toss("FuncPtrAdapter options requires a bindScope (explicit or implied).");
+      if(FuncPtrAdapter.bindScopes.indexOf(opt.bindScope)<0){
+        toss("Invalid options.bindScope ("+opt.bindMod+") for FuncPtrAdapter. "+
+             "Expecting one of: ("+FuncPtrAdapter.bindScopes.join(', ')+')');
+      }
+      this.isTransient = 'transient'===this.bindScope;
+      this.isContext = 'context'===this.bindScope;
+      this.isPermanent = 'permanent'===this.bindScope;
+      this.singleton = ('singleton'===this.bindScope) ? [] : undefined;
+      //console.warn("FuncPtrAdapter()",opt,this);
+      this.callProxy = (opt.callProxy instanceof Function)
+        ? opt.callProxy : undefined;
+    }
+
+    /**
+       Note that static class members are defined outside of the class
+       to work around an emcc toolchain build problem: one of the
+       tools in emsdk v3.1.42 does not support the static keyword.
+    */
+
+    /* Dummy impl. Overwritten per-instance as needed. */
+    contextKey(argv,argIndex){
+      return this;
+    }
+
+    /* Returns this objects mapping for the given context key, in the
+       form of an an array, creating the mapping if needed. The key
+       may be anything suitable for use in a Map. */
+    contextMap(key){
+      const cm = (this.__cmap || (this.__cmap = new Map));
+      let rc = cm.get(key);
+      if(undefined===rc) cm.set(key, (rc = []));
+      return rc;
+    }
+
+    /**
+       Gets called via xWrap() to "convert" v to a WASM-bound function
+       pointer. If v is one of (a pointer, null, undefined) then
+       (v||0) is returned and any earlier function installed by this
+       mapping _might_, depending on how it's bound, be uninstalled.
+       If v is not one of those types, it must be a Function, for
+       which it creates (if needed) a WASM function binding and
+       returns the WASM pointer to that binding. If this instance is
+       not in 'transient' mode, it will remember the binding for at
+       least the next call, to avoid recreating the function binding
+       unnecessarily.
+
+       If it's passed a pointer(ish) value for v, it does _not_
+       perform any function binding, so this object's bindMode is
+       irrelevant for such cases.
+
+       See the parent class's convertArg() docs for details on what
+       exactly the 2nd and 3rd arguments are.
+    */
+    convertArg(v,argv,argIndex){
+      //FuncPtrAdapter.debugOut("FuncPtrAdapter.convertArg()",this.name,this.signature,this.transient,v);
+      let pair = this.singleton;
+      if(!pair && this.isContext){
+        pair = this.contextMap(this.contextKey(argv,argIndex));
+        //FuncPtrAdapter.debugOut(this.name, this.signature, "contextKey() =",this.contextKey(argv,argIndex), pair);
+      }
+      if(pair && pair[0]===v) return pair[1];
+      if(v instanceof Function){
+        /* Install a WASM binding and return its pointer. */
+        //FuncPtrAdapter.debugOut("FuncPtrAdapter.convertArg()",this.name,this.signature,this.transient,v,pair);
+        if(this.callProxy) v = this.callProxy(v);
+        const fp = __installFunction(v, this.signature, this.isTransient);
+        if(FuncPtrAdapter.debugFuncInstall){
+          FuncPtrAdapter.debugOut("FuncPtrAdapter installed", this,
+                                  this.contextKey(argv,argIndex), '@'+fp, v);
+        }
+        if(pair){
+          /* Replace existing stashed mapping */
+          if(pair[1]){
+            if(FuncPtrAdapter.debugFuncInstall){
+              FuncPtrAdapter.debugOut("FuncPtrAdapter uninstalling", this,
+                                      this.contextKey(argv,argIndex), '@'+pair[1], v);
+            }
+            try{
+              /* Because the pending native call might rely on the
+                 pointer we're replacing, e.g. as is normally the case
+                 with sqlite3's xDestroy() methods, we don't
+                 immediately uninstall but instead add its pointer to
+                 the scopedAlloc stack, which will be cleared when the
+                 xWrap() mechanism is done calling the native
+                 function. We're relying very much here on xWrap()
+                 having pushed an alloc scope.
+              */
+              cache.scopedAlloc[cache.scopedAlloc.length-1].push(pair[1]);
+            }
+            catch(e){/*ignored*/}
+          }
+          pair[0] = v;
+          pair[1] = fp;
+        }
+        return fp;
+      }else if(target.isPtr(v) || null===v || undefined===v){
+        //FuncPtrAdapter.debugOut("FuncPtrAdapter.convertArg()",this.name,this.signature,this.transient,v,pair);
+        if(pair && pair[1] && pair[1]!==v){
+          /* uninstall stashed mapping and replace stashed mapping with v. */
+          if(FuncPtrAdapter.debugFuncInstall){
+            FuncPtrAdapter.debugOut("FuncPtrAdapter uninstalling", this,
+                                    this.contextKey(argv,argIndex), '@'+pair[1], v);
+          }
+          try{ cache.scopedAlloc[cache.scopedAlloc.length-1].push(pair[1]) }
+          catch(e){/*ignored*/}
+          pair[0] = pair[1] = (v | 0);
+        }
+        return v || 0;
+      }else{
+        throw new TypeError("Invalid FuncPtrAdapter argument type. "+
+                            "Expecting a function pointer or a "+
+                            (this.name ? this.name+' ' : '')+
+                            "function matching signature "+
+                            this.signature+".");
+      }
+    }/*convertArg()*/
+  }/*FuncPtrAdapter*/;
+
+  /** If true, the constructor emits a warning. The intent is that
+      this be set to true after bootstrapping of the higher-level
+      client library is complete, to warn downstream clients that
+      they shouldn't be relying on this implemenation detail which
+      does not have a stable interface. */
+  xArg.FuncPtrAdapter.warnOnUse = false;
+
+  /** If true, convertArg() will FuncPtrAdapter.debugOut() when it
+      (un)installs a function binding to/from WASM. Note that
+      deinstallation of bindScope=transient bindings happens
+      via scopedAllocPop() so will not be output. */
+  xArg.FuncPtrAdapter.debugFuncInstall = false;
+
+  /** Function used for debug output. */
+  xArg.FuncPtrAdapter.debugOut = console.debug.bind(console);
+
+  xArg.FuncPtrAdapter.bindScopes = [
+    'transient', 'context', 'singleton', 'permanent'
+  ];
+
+  const __xArgAdapterCheck =
+        (t)=>xArg.get(t) || toss("Argument adapter not found:",t);
+
+  const __xResultAdapterCheck =
+        (t)=>xResult.get(t) || toss("Result adapter not found:",t);
+
+  /**
+     Fetches the xWrap() argument adapter mapped to t, calls it,
+     passing in all remaining arguments, and returns the result.
+     Throws if t is not mapped to an argument converter.
+  */
+  cache.xWrap.convertArg = (t,...args)=>__xArgAdapterCheck(t)(...args);
+  /**
+     Identical to convertArg() except that it does not perform
+     an is-defined check on the mapping to t before invoking it.
+  */
+  cache.xWrap.convertArgNoCheck = (t,...args)=>xArg.get(t)(...args);
+
+  /**
+     Fetches the xWrap() result adapter mapped to t, calls it, passing
+     it v, and returns the result.  Throws if t is not mapped to an
+     argument converter.
+  */
+  cache.xWrap.convertResult =
+    (t,v)=>(null===t ? v : (t ? __xResultAdapterCheck(t)(v) : undefined));
+  /**
+     Identical to convertResult() except that it does not perform an
+     is-defined check on the mapping to t before invoking it.
+  */
+  cache.xWrap.convertResultNoCheck =
+    (t,v)=>(null===t ? v : (t ? xResult.get(t)(v) : undefined));
+
+  /**
+     Creates a wrapper for another function which converts the arguments
+     of the wrapper to argument types accepted by the wrapped function,
+     then converts the wrapped function's result to another form
+     for the wrapper.
+
+     The first argument must be one of:
+
+     - A JavaScript function.
+     - The name of a WASM-exported function. In the latter case xGet()
+       is used to fetch the exported function, which throws if it's not
+       found.
+     - A pointer into the indirect function table. e.g. a pointer
+       returned from target.installFunction().
+
+     It returns either the passed-in function or a wrapper for that
+     function which converts the JS-side argument types into WASM-side
+     types and converts the result type.
+
+     The second argument, `resultType`, describes the conversion for
+     the wrapped functions result. A literal `null` or the string
+     `'null'` both mean to return the original function's value as-is
+     (mnemonic: there is "null" conversion going on). Literal
+     `undefined` or the string `"void"` both mean to ignore the
+     function's result and return `undefined`. Aside from those two
+     special cases, the `resultType` value may be one of the values
+     described below or any mapping installed by the client using
+     xWrap.resultAdapter().
+
+     If passed 3 arguments and the final one is an array, that array
+     must contain a list of type names (see below) for adapting the
+     arguments from JS to WASM.  If passed 2 arguments, more than 3,
+     or the 3rd is not an array, all arguments after the 2nd (if any)
+     are treated as type names. i.e.:
+
+     ```
+     xWrap('funcname', 'i32', 'string', 'f64');
+     // is equivalent to:
+     xWrap('funcname', 'i32', ['string', 'f64']);
+     ```
+
+     This function enforces that the given list of arguments has the
+     same arity as the being-wrapped function (as defined by its
+     `length` property) and it will throw if that is not the case.
+     Similarly, the created wrapper will throw if passed a differing
+     argument count.
+
+     Type names are symbolic names which map the arguments to an
+     adapter function to convert, if needed, the value before passing
+     it on to WASM or to convert a return result from WASM. The list
+     of built-in names:
+
+     - `i8`, `i16`, `i32` (args and results): all integer conversions
+       which convert their argument to an integer and truncate it to
+       the given bit length.
+
+     - `N*` (args): a type name in the form `N*`, where N is a numeric
+       type name, is treated the same as WASM pointer.
+
+     - `*` and `pointer` (args): are assumed to be WASM pointer values
+       and are returned coerced to an appropriately-sized pointer
+       value (i32 or i64). Non-numeric values will coerce to 0 and
+       out-of-range values will have undefined results (just as with
+       any pointer misuse).
+
+     - `*` and `pointer` (results): aliases for the current
+       WASM pointer numeric type.
+
+     - `**` (args): is simply a descriptive alias for the WASM pointer
+       type. It's primarily intended to mark output-pointer arguments.
+
+     - `i64` (args and results): passes the value to BigInt() to
+       convert it to an int64. Only available if bigIntEnabled is
+       true.
+
+     - `f32` (`float`), `f64` (`double`) (args and results): pass
+       their argument to Number(). i.e. the adapter does not currently
+       distinguish between the two types of floating-point numbers.
+
+     - `number` (results): converts the result to a JS Number using
+       Number(theValue).valueOf(). Note that this is for result
+       conversions only, as it's not possible to generically know
+       which type of number to convert arguments to.
+
+     Non-numeric conversions include:
+
+     - `null` literal or `"null"` string (args and results): perform
+       no translation and pass the arg on as-is. This is primarily
+       useful for results but may have a use or two for arguments.
+
+     - `string` or `utf8` (args): has two different semantics in order
+       to accommodate various uses of certain C APIs
+       (e.g. output-style strings)...
+
+       - If the arg is a string, it creates a _temporary_
+         UTF-8-encoded C-string to pass to the exported function,
+         cleaning it up before the wrapper returns. If a long-lived
+         C-string pointer is required, that requires client-side code
+         to create the string, then pass its pointer to the function.
+
+       - Else the arg is assumed to be a pointer to a string the
+         client has already allocated and it's passed on as
+         a WASM pointer.
+
+     - `string` or `utf8` (results): treats the result value as a
+       const C-string, encoded as UTF-8, copies it to a JS string,
+       and returns that JS string.
+
+     - `string:dealloc` or `utf8:dealloc` (results): treats the result
+       value as a non-const UTF-8 C-string, ownership of which has
+       just been transfered to the caller. It copies the C-string to a
+       JS string, frees the C-string, and returns the JS string. If
+       such a result value is NULL, the JS result is `null`. Achtung:
+       when using an API which returns results from a specific
+       allocator, e.g. `my_malloc()`, this conversion _is not
+       legal_. Instead, an equivalent conversion which uses the
+       appropriate deallocator is required. For example:
+
+```js
+   target.xWrap.resultAdapter('string:my_free',(i)=>{
+      try { return i ? target.cstrToJs(i) : null }
+      finally{ target.exports.my_free(i) }
+   };
+```
+
+     - `json` (results): treats the result as a const C-string and
+       returns the result of passing the converted-to-JS string to
+       JSON.parse(). Returns `null` if the C-string is a NULL pointer.
+
+     - `json:dealloc` (results): works exactly like `string:dealloc` but
+       returns the same thing as the `json` adapter. Note the
+       warning in `string:dealloc` regarding maching allocators and
+       deallocators.
+
+     The type names for results and arguments are validated when
+     xWrap() is called and any unknown names will trigger an
+     exception.
+
+     Clients may map their own result and argument adapters using
+     xWrap.resultAdapter() and xWrap.argAdapter(), noting that not all
+     type conversions are valid for both arguments _and_ result types
+     as they often have different memory ownership requirements.
+
+     Design note: the ability to pass in a JS function as the first
+     argument is of relatively limited use, primarily for testing
+     argument and result converters. JS functions, by and large, will
+     not want to deal with C-type arguments.
+
+     TODOs:
+
+     - Figure out how/whether we can (semi-)transparently handle
+       pointer-type _output_ arguments. Those currently require
+       explicit handling by allocating pointers, assigning them before
+       the call using poke(), and fetching them with
+       peek() after the call. We may be able to automate some
+       or all of that.
+
+     - Figure out whether it makes sense to extend the arg adapter
+       interface such that each arg adapter gets an array containing
+       the results of the previous arguments in the current call. That
+       might allow some interesting type-conversion feature. Use case:
+       handling of the final argument to sqlite3_prepare_v2() depends
+       on the type (pointer vs JS string) of its 2nd
+       argument. Currently that distinction requires hand-writing a
+       wrapper for that function. That case is unusual enough that
+       abstracting it into this API (and taking on the associated
+       costs) may well not make good sense.
+  */
+  target.xWrap = function(fArg, resultType, ...argTypes){
+    if(3===arguments.length && Array.isArray(arguments[2])){
+      argTypes = arguments[2];
+    }
+    if(target.isPtr(fArg)){
+      fArg = target.functionEntry(fArg)
+        || toss("Function pointer not found in WASM function table.");
+    }
+    const fIsFunc = (fArg instanceof Function);
+    const xf = fIsFunc ? fArg : target.xGet(fArg);
+    if(fIsFunc) fArg = xf.name || 'unnamed function';
+    if(argTypes.length!==xf.length) __argcMismatch(fArg, xf.length);
+    if((null===resultType) && 0===xf.length){
+      /* Func taking no args with an as-is return. We don't need a wrapper.
+         We forego the argc check here, though. */
+      return xf;
+    }
+    /*Verify the arg type conversions are valid...*/;
+    if(undefined!==resultType && null!==resultType) __xResultAdapterCheck(resultType);
+    for(const t of argTypes){
+      if(t instanceof AbstractArgAdapter) xArg.set(t, (...args)=>t.convertArg(...args));
+      else __xArgAdapterCheck(t);
+    }
+    const cxw = cache.xWrap;
+    if(0===xf.length){
+      // No args to convert, so we can create a simpler wrapper...
+      return (...args)=>(args.length
+                         ? __argcMismatch(fArg, xf.length)
+                         : cxw.convertResult(resultType, xf.call(null)));
+    }
+    return function(...args){
+      if(args.length!==xf.length) __argcMismatch(fArg, xf.length);
+      const scope = target.scopedAllocPush();
+      try{
+        /*
+          Maintenance reminder re. arguments passed to convertArg():
+          The public interface of argument adapters is that they take
+          ONE argument and return a (possibly) converted result for
+          it. The passing-on of arguments after the first is an
+          internal implementation detail for the sake of
+          AbstractArgAdapter, and not to be relied on or documented
+          for other cases. The fact that this is how
+          AbstractArgAdapter.convertArgs() gets its 2nd+ arguments,
+          and how FuncPtrAdapter.contextKey() gets its args, is also
+          an implementation detail and subject to change. i.e. the
+          public interface of 1 argument is stable.  The fact that any
+          arguments may be passed in after that one, and what those
+          arguments are, is _not_ part of the public interface and is
+          _not_ stable.
+
+          Maintenance reminder: the Ember framework modifies the core
+          Array type, breaking for-in loops.
+        */
+        let i = 0;
+        for(; i < args.length; ++i) args[i] = cxw.convertArgNoCheck(
+          argTypes[i], args[i], args, i
+        );
+        return cxw.convertResultNoCheck(resultType, xf.apply(null,args));
+      }finally{
+        target.scopedAllocPop(scope);
+      }
+    };
+  }/*xWrap()*/;
+
+  /** Internal impl for xWrap.resultAdapter() and argAdapter(). */
+  const __xAdapter = function(func, argc, typeName, adapter, modeName, xcvPart){
+    if('string'===typeof typeName){
+      if(1===argc) return xcvPart.get(typeName);
+      else if(2===argc){
+        if(!adapter){
+          delete xcvPart.get(typeName);
+          return func;
+        }else if(!(adapter instanceof Function)){
+          toss(modeName,"requires a function argument.");
+        }
+        xcvPart.set(typeName, adapter);
+        return func;
+      }
+    }
+    toss("Invalid arguments to",modeName);
+  };
+
+  /**
+     Gets, sets, or removes a result value adapter for use with
+     xWrap(). If passed only 1 argument, the adapter function for the
+     given type name is returned.  If the second argument is explicit
+     falsy (as opposed to defaulted), the adapter named by the first
+     argument is removed. If the 2nd argument is not falsy, it must be
+     a function which takes one value and returns a value appropriate
+     for the given type name. The adapter may throw if its argument is
+     not of a type it can work with. This function throws for invalid
+     arguments.
+
+     Example:
+
+     ```
+     xWrap.resultAdapter('twice',(v)=>v+v);
+     ```
+
+     xWrap.resultAdapter() MUST NOT use the scopedAlloc() family of
+     APIs to allocate a result value. xWrap()-generated wrappers run
+     in the context of scopedAllocPush() so that argument adapters can
+     easily convert, e.g., to C-strings, and have them cleaned up
+     automatically before the wrapper returns to the caller. Likewise,
+     if a _result_ adapter uses scoped allocation, the result will be
+     freed before because they would be freed before the wrapper
+     returns, leading to chaos and undefined behavior.
+
+     Except when called as a getter, this function returns itself.
+  */
+  target.xWrap.resultAdapter = function f(typeName, adapter){
+    return __xAdapter(f, arguments.length, typeName, adapter,
+                      'resultAdapter()', xResult);
+  };
+
+  /**
+     Functions identically to xWrap.resultAdapter() but applies to
+     call argument conversions instead of result value conversions.
+
+     xWrap()-generated wrappers perform argument conversion in the
+     context of a scopedAllocPush(), so any memory allocation
+     performed by argument adapters really, really, really should be
+     made using the scopedAlloc() family of functions unless
+     specifically necessary. For example:
+
+     ```
+     xWrap.argAdapter('my-string', function(v){
+       return ('string'===typeof v)
+         ? myWasmObj.scopedAllocCString(v) : null;
+     };
+     ```
+
+     Contrariwise, xWrap.resultAdapter() must _not_ use scopedAlloc()
+     to allocate its results because they would be freed before the
+     xWrap()-created wrapper returns.
+
+     Note that it is perfectly legitimate to use these adapters to
+     perform argument validation, as opposed (or in addition) to
+     conversion.
+  */
+  target.xWrap.argAdapter = function f(typeName, adapter){
+    return __xAdapter(f, arguments.length, typeName, adapter,
+                      'argAdapter()', xArg);
+  };
+
+  target.xWrap.FuncPtrAdapter = xArg.FuncPtrAdapter;
+
+  /**
+     Functions like xCall() but performs argument and result type
+     conversions as for xWrap(). The first, second, and third
+     arguments are as documented for xWrap(), except that the 3rd
+     argument may be either a falsy value or empty array to represent
+     nullary functions. The 4th+ arguments are arguments for the call,
+     with the special case that if the 4th argument is an array, it is
+     used as the arguments for the call. Returns the converted result
+     of the call.
+
+     This is just a thin wrapper around xWrap(). If the given function
+     is to be called more than once, it's more efficient to use
+     xWrap() to create a wrapper, then to call that wrapper as many
+     times as needed. For one-shot calls, however, this variant is
+     arguably more efficient because it will hypothetically free the
+     wrapper function quickly.
+  */
+  target.xCallWrapped = function(fArg, resultType, argTypes, ...args){
+    if(Array.isArray(arguments[3])) args = arguments[3];
+    return target.xWrap(fArg, resultType, argTypes||[]).apply(null, args||[]);
+  };
+
+  /**
+     This function is ONLY exposed in the public API to facilitate
+     testing. It should not be used in application-level code, only
+     in test code.
+
+     Expects to be given (typeName, value) and returns a conversion
+     of that value as has been registered using argAdapter().
+     It throws if no adapter is found.
+
+     ACHTUNG: the adapter may require that a scopedAllocPush() is
+     active and it may allocate memory within that scope. It may also
+     require additional arguments, depending on the type of
+     conversion.
+  */
+  target.xWrap.testConvertArg = cache.xWrap.convertArg;
+
+  /**
+     This function is ONLY exposed in the public API to facilitate
+     testing. It should not be used in application-level code, only
+     in test code.
+
+     Expects to be given (typeName, value) and returns a conversion
+     of that value as has been registered using resultAdapter().
+     It throws if no adapter is found.
+
+     ACHTUNG: the adapter may allocate memory which the caller may need
+     to know how to free.
+  */
+  target.xWrap.testConvertResult = cache.xWrap.convertResult;
+
+  return target;
+};
+
+/**
+   yawl (Yet Another Wasm Loader) provides very basic wasm loader.
+   It requires a config object:
+
+   - `uri`: required URI of the WASM file to load.
+
+   - `onload(loadResult,config)`: optional callback. The first
+     argument is the result object from
+     WebAssembly.instantiate[Streaming](). The 2nd is the config
+     object passed to this function. Described in more detail below.
+
+   - `imports`: optional imports object for
+     WebAssembly.instantiate[Streaming](). The default is an empty set
+     of imports. If the module requires any imports, this object
+     must include them.
+
+   - `wasmUtilTarget`: optional object suitable for passing to
+     WhWasmUtilInstaller(). If set, it gets passed to that function
+     after the promise resolves. This function sets several properties
+     on it before passing it on to that function (which sets many
+     more):
+
+     - `module`, `instance`: the properties from the
+       instantiate[Streaming]() result.
+
+     - If `instance.exports.memory` is _not_ set then it requires that
+       `config.imports.env.memory` be set (else it throws), and
+       assigns that to `target.memory`.
+
+     - If `wasmUtilTarget.alloc` is not set and
+       `instance.exports.malloc` is, it installs
+       `wasmUtilTarget.alloc()` and `wasmUtilTarget.dealloc()`
+       wrappers for the exports `malloc` and `free` functions.
+
+   It returns a function which, when called, initiates loading of the
+   module and returns a Promise. When that Promise resolves, it calls
+   the `config.onload` callback (if set) and passes it
+   `(loadResult,config)`, where `loadResult` is the result of
+   WebAssembly.instantiate[Streaming](): an object in the form:
+
+   ```
+   {
+     module: a WebAssembly.Module,
+     instance: a WebAssembly.Instance
+   }
+   ```
+
+   (Note that the initial `then()` attached to the promise gets only
+   that object, and not the `config` one.)
+
+   Error handling is up to the caller, who may attach a `catch()` call
+   to the promise.
+*/
+globalThis.WhWasmUtilInstaller.yawl = function(config){
+  const wfetch = ()=>fetch(config.uri, {credentials: 'same-origin'});
+  const wui = this;
+  const finalThen = function(arg){
+    //log("finalThen()",arg);
+    if(config.wasmUtilTarget){
+      const toss = (...args)=>{throw new Error(args.join(' '))};
+      const tgt = config.wasmUtilTarget;
+      tgt.module = arg.module;
+      tgt.instance = arg.instance;
+      //tgt.exports = tgt.instance.exports;
+      if(!tgt.instance.exports.memory){
+        /**
+           WhWasmUtilInstaller requires either tgt.exports.memory
+           (exported from WASM) or tgt.memory (JS-provided memory
+           imported into WASM).
+        */
+        tgt.memory = (config.imports && config.imports.env
+                      && config.imports.env.memory)
+          || toss("Missing 'memory' object!");
+      }
+      if(!tgt.alloc && arg.instance.exports.malloc){
+        const exports = arg.instance.exports;
+        tgt.alloc = function(n){
+          return exports.malloc(n) || toss("Allocation of",n,"bytes failed.");
+        };
+        tgt.dealloc = function(m){exports.free(m)};
+      }
+      wui(tgt);
+    }
+    if(config.onload) config.onload(arg,config);
+    return arg /* for any then() handler attached to
+                  yetAnotherWasmLoader()'s return value */;
+  };
+  const loadWasm = WebAssembly.instantiateStreaming
+        ? function loadWasmStreaming(){
+          return WebAssembly.instantiateStreaming(wfetch(), config.imports||{})
+            .then(finalThen);
+        }
+        : function loadWasmOldSchool(){ // Safari < v15
+          return wfetch()
+            .then(response => response.arrayBuffer())
+            .then(bytes => WebAssembly.instantiate(bytes, config.imports||{}))
+            .then(finalThen);
+        };
+  return loadWasm;
+}.bind(globalThis.WhWasmUtilInstaller)/*yawl()*/;
diff --git a/ext/wasm/demo-123-worker.html b/ext/wasm/demo-123-worker.html
new file mode 100644
index 0000000000000000000000000000000000000000..692203d71e5e0bd3ec39df6d1c69f9915a33f88d
--- /dev/null
+++ b/ext/wasm/demo-123-worker.html
@@ -0,0 +1,44 @@
+<!doctype html>
+<html lang="en-us">
+  <head>
+    <meta charset="utf-8">
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+    <link rel="shortcut icon" href="data:image/x-icon;," type="image/x-icon">
+    <title>Hello, sqlite3</title>
+    <style>
+      .warning, .error {color: red}
+      .error {background-color: yellow}
+      body {
+          display: flex;
+          flex-direction: column;
+          font-family: monospace;
+          white-space: break-spaces;
+      }
+    </style>
+  </head>
+  <body>
+    <h1>1-2-sqlite3 worker demo</h1>
+    <script>(function(){
+      const logHtml = function(cssClass,...args){
+        const ln = document.createElement('div');
+        if(cssClass) ln.classList.add(cssClass);
+        ln.append(document.createTextNode(args.join(' ')));
+        document.body.append(ln);
+      };
+      const w = new Worker("demo-123.js?sqlite3.dir=jswasm"
+                           /* Note the URL argument on that name. See
+                              the notes in demo-123.js (search for
+                              "importScripts") for why we need
+                              that. */);
+      w.onmessage = function({data}){
+        switch(data.type){
+            case 'log':
+              logHtml(data.payload.cssClass, ...data.payload.args);
+              break;
+            default:
+              logHtml('error',"Unhandled message:",data.type);
+        };
+      };
+    })();</script>
+  </body>
+</html>
diff --git a/ext/wasm/demo-123.html b/ext/wasm/demo-123.html
new file mode 100644
index 0000000000000000000000000000000000000000..2046b076d4753aa39553efb811c820f6a7f80f04
--- /dev/null
+++ b/ext/wasm/demo-123.html
@@ -0,0 +1,24 @@
+<!doctype html>
+<html lang="en-us">
+  <head>
+    <meta charset="utf-8">
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+    <link rel="shortcut icon" href="data:image/x-icon;," type="image/x-icon">
+    <title>Hello, sqlite3</title>
+    <style>
+      .warning, .error {color: red}
+      .error {background-color: yellow}
+      body {
+          display: flex;
+          flex-direction: column;
+          font-family: monospace;
+          white-space: break-spaces;
+      }
+    </style>
+  </head>
+  <body>
+    <h1>1-2-sqlite3 demo</h1>
+    <script src="jswasm/sqlite3.js"></script>
+    <script src="demo-123.js"></script>
+  </body>
+</html>
diff --git a/ext/wasm/demo-123.js b/ext/wasm/demo-123.js
new file mode 100644
index 0000000000000000000000000000000000000000..9f90ca7568d094bb52f86dafc7a51226bc34d214
--- /dev/null
+++ b/ext/wasm/demo-123.js
@@ -0,0 +1,290 @@
+/*
+  2022-09-19
+
+  The author disclaims copyright to this source code.  In place of a
+  legal notice, here is a blessing:
+
+  *   May you do good and not evil.
+  *   May you find forgiveness for yourself and forgive others.
+  *   May you share freely, never taking more than you give.
+
+  ***********************************************************************
+
+  A basic demonstration of the SQLite3 "OO#1" API.
+*/
+'use strict';
+(function(){
+  /**
+     Set up our output channel differently depending
+     on whether we are running in a worker thread or
+     the main (UI) thread.
+  */
+  let logHtml;
+  if(globalThis.window === globalThis /* UI thread */){
+    console.log("Running demo from main UI thread.");
+    logHtml = function(cssClass,...args){
+      const ln = document.createElement('div');
+      if(cssClass) ln.classList.add(cssClass);
+      ln.append(document.createTextNode(args.join(' ')));
+      document.body.append(ln);
+    };
+  }else{ /* Worker thread */
+    console.log("Running demo from Worker thread.");
+    logHtml = function(cssClass,...args){
+      postMessage({
+        type:'log',
+        payload:{cssClass, args}
+      });
+    };
+  }
+  const log = (...args)=>logHtml('',...args);
+  const warn = (...args)=>logHtml('warning',...args);
+  const error = (...args)=>logHtml('error',...args);
+
+  const demo1 = function(sqlite3){
+    const capi = sqlite3.capi/*C-style API*/,
+          oo = sqlite3.oo1/*high-level OO API*/;
+    log("sqlite3 version",capi.sqlite3_libversion(), capi.sqlite3_sourceid());
+    const db = new oo.DB("/mydb.sqlite3",'ct');
+    log("transient db =",db.filename);
+    /**
+       Never(!) rely on garbage collection to clean up DBs and
+       (especially) prepared statements. Always wrap their lifetimes
+       in a try/finally construct, as demonstrated below. By and
+       large, client code can entirely avoid lifetime-related
+       complications of prepared statement objects by using the
+       DB.exec() method for SQL execution.
+    */
+    try {
+      log("Create a table...");
+      db.exec("CREATE TABLE IF NOT EXISTS t(a,b)");
+      //Equivalent:
+      db.exec({
+        sql:"CREATE TABLE IF NOT EXISTS t(a,b)"
+        // ... numerous other options ... 
+      });
+      // SQL can be either a string or a byte array
+      // or an array of strings which get concatenated
+      // together as-is (so be sure to end each statement
+      // with a semicolon).
+
+      log("Insert some data using exec()...");
+      let i;
+      for( i = 20; i <= 25; ++i ){
+        db.exec({
+          sql: "insert into t(a,b) values (?,?)",
+          // bind by parameter index...
+          bind: [i, i*2]
+        });
+        db.exec({
+          sql: "insert into t(a,b) values ($a,$b)",
+          // bind by parameter name...
+          bind: {$a: i * 10, $b: i * 20}
+        });
+      }    
+
+      log("Insert using a prepared statement...");
+      let q = db.prepare([
+        // SQL may be a string or array of strings
+        // (concatenated w/o separators).
+        "insert into t(a,b) ",
+        "values(?,?)"
+      ]);
+      try {
+        for( i = 100; i < 103; ++i ){
+          q.bind( [i, i*2] ).step();
+          q.reset();
+        }
+        // Equivalent...
+        for( i = 103; i <= 105; ++i ){
+          q.bind(1, i).bind(2, i*2).stepReset();
+        }
+      }finally{
+        q.finalize();
+      }
+
+      log("Query data with exec() using rowMode 'array'...");
+      db.exec({
+        sql: "select a from t order by a limit 3",
+        rowMode: 'array', // 'array' (default), 'object', or 'stmt'
+        callback: function(row){
+          log("row ",++this.counter,"=",row);
+        }.bind({counter: 0})
+      });
+
+      log("Query data with exec() using rowMode 'object'...");
+      db.exec({
+        sql: "select a as aa, b as bb from t order by aa limit 3",
+        rowMode: 'object',
+        callback: function(row){
+          log("row ",++this.counter,"=",JSON.stringify(row));
+        }.bind({counter: 0})
+      });
+
+      log("Query data with exec() using rowMode 'stmt'...");
+      db.exec({
+        sql: "select a from t order by a limit 3",
+        rowMode: 'stmt',
+        callback: function(row){
+          log("row ",++this.counter,"get(0) =",row.get(0));
+        }.bind({counter: 0})
+      });
+
+      log("Query data with exec() using rowMode INTEGER (result column index)...");
+      db.exec({
+        sql: "select a, b from t order by a limit 3",
+        rowMode: 1, // === result column 1
+        callback: function(row){
+          log("row ",++this.counter,"b =",row);
+        }.bind({counter: 0})
+      });
+
+      log("Query data with exec() using rowMode $COLNAME (result column name)...");
+      db.exec({
+        sql: "select a a, b from t order by a limit 3",
+        rowMode: '$a',
+        callback: function(value){
+          log("row ",++this.counter,"a =",value);
+        }.bind({counter: 0})
+      });
+
+      log("Query data with exec() without a callback...");
+      let resultRows = [];
+      db.exec({
+        sql: "select a, b from t order by a limit 3",
+        rowMode: 'object',
+        resultRows: resultRows
+      });
+      log("Result rows:",JSON.stringify(resultRows,undefined,2));
+
+      log("Create a scalar UDF...");
+      db.createFunction({
+        name: 'twice',
+        xFunc: function(pCx, arg){ // note the call arg count
+          return arg + arg;
+        }
+      });
+      log("Run scalar UDF and collect result column names...");
+      let columnNames = [];
+      db.exec({
+        sql: "select a, twice(a), twice(''||a) from t order by a desc limit 3",
+        columnNames: columnNames,
+        rowMode: 'stmt',
+        callback: function(row){
+          log("a =",row.get(0), "twice(a) =", row.get(1),
+              "twice(''||a) =",row.get(2));
+        }
+      });
+      log("Result column names:",columnNames);
+
+      try{
+        log("The following use of the twice() UDF will",
+            "fail because of incorrect arg count...");
+        db.exec("select twice(1,2,3)");
+      }catch(e){
+        warn("Got expected exception:",e.message);
+      }
+
+      try {
+        db.transaction( function(D) {
+          D.exec("delete from t");
+          log("In transaction: count(*) from t =",db.selectValue("select count(*) from t"));
+          throw new sqlite3.SQLite3Error("Demonstrating transaction() rollback");
+        });
+      }catch(e){
+        if(e instanceof sqlite3.SQLite3Error){
+          log("Got expected exception from db.transaction():",e.message);
+          log("count(*) from t =",db.selectValue("select count(*) from t"));
+        }else{
+          throw e;
+        }
+      }
+
+      try {
+        db.savepoint( function(D) {
+          D.exec("delete from t");
+          log("In savepoint: count(*) from t =",db.selectValue("select count(*) from t"));
+          D.savepoint(function(DD){
+            const rows = [];
+            DD.exec({
+              sql: ["insert into t(a,b) values(99,100);",
+                    "select count(*) from t"],
+              rowMode: 0,
+              resultRows: rows
+            });
+            log("In nested savepoint. Row count =",rows[0]);
+            throw new sqlite3.SQLite3Error("Demonstrating nested savepoint() rollback");
+          })
+        });
+      }catch(e){
+        if(e instanceof sqlite3.SQLite3Error){
+          log("Got expected exception from nested db.savepoint():",e.message);
+          log("count(*) from t =",db.selectValue("select count(*) from t"));
+        }else{
+          throw e;
+        }
+      }
+    }finally{
+      db.close();
+    }
+
+    log("That's all, folks!");
+
+    /**
+       Some of the features of the OO API not demonstrated above...
+
+       - get change count (total or statement-local, 32- or 64-bit)
+       - get a DB's file name
+
+       Misc. Stmt features:
+
+       - Various forms of bind()
+       - clearBindings()
+       - reset()
+       - Various forms of step()
+       - Variants of get() for explicit type treatment/conversion,
+         e.g. getInt(), getFloat(), getBlob(), getJSON()
+       - getColumnName(ndx), getColumnNames()
+       - getParamIndex(name)
+    */
+  }/*demo1()*/;
+
+  log("Loading and initializing sqlite3 module...");
+  if(globalThis.window!==globalThis) /*worker thread*/{
+    /*
+      If sqlite3.js is in a directory other than this script, in order
+      to get sqlite3.js to resolve sqlite3.wasm properly, we have to
+      explicitly tell it where sqlite3.js is being loaded from. We do
+      that by passing the `sqlite3.dir=theDirName` URL argument to
+      _this_ script. That URL argument will be seen by the JS/WASM
+      loader and it will adjust the sqlite3.wasm path accordingly. If
+      sqlite3.js/.wasm are in the same directory as this script then
+      that's not needed.
+
+      URL arguments passed as part of the filename via importScripts()
+      are simply lost, and such scripts see the globalThis.location of
+      _this_ script.
+    */
+    let sqlite3Js = 'sqlite3.js';
+    const urlParams = new URL(globalThis.location.href).searchParams;
+    if(urlParams.has('sqlite3.dir')){
+      sqlite3Js = urlParams.get('sqlite3.dir') + '/' + sqlite3Js;
+    }
+    importScripts(sqlite3Js);
+  }
+  globalThis.sqlite3InitModule({
+    /* We can redirect any stdout/stderr from the module like so, but
+       note that doing so makes use of Emscripten-isms, not
+       well-defined sqlite APIs. */
+    print: log,
+    printErr: error
+  }).then(function(sqlite3){
+    //console.log('sqlite3 =',sqlite3);
+    log("Done initializing. Running demo...");
+    try {
+      demo1(sqlite3);
+    }catch(e){
+      error("Exception:",e.message);
+    }
+  });
+})();
diff --git a/ext/wasm/demo-jsstorage.html b/ext/wasm/demo-jsstorage.html
new file mode 100644
index 0000000000000000000000000000000000000000..79f4a3b4beb3554234b315f91d699bd2e2ad18c1
--- /dev/null
+++ b/ext/wasm/demo-jsstorage.html
@@ -0,0 +1,49 @@
+<!doctype html>
+<html lang="en-us">
+  <head>
+    <meta charset="utf-8">
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+    <link rel="shortcut icon" href="data:image/x-icon;," type="image/x-icon">
+    <link rel="stylesheet" href="common/emscripten.css"/>
+    <link rel="stylesheet" href="common/testing.css"/>
+    <title>sqlite3-kvvfs.js tests</title>
+  </head>
+  <body>
+    <header id='titlebar'><span>sqlite3-kvvfs.js tests</span></header>
+    <!-- emscripten bits -->
+    <figure id="module-spinner">
+      <div class="spinner"></div>
+      <div class='center'><strong>Initializing app...</strong></div>
+      <div class='center'>
+        On a slow internet connection this may take a moment.  If this
+        message displays for "a long time", intialization may have
+        failed and the JavaScript console may contain clues as to why.
+      </div>
+    </figure>
+    <div class="emscripten" id="module-status">Downloading...</div>
+    <div class="emscripten">
+      <progress value="0" max="100" id="module-progress" hidden='1'></progress>  
+    </div><!-- /emscripten bits -->
+    <fieldset>
+      <legend>Options</legend>
+      <div class='toolbar'>
+        <button id='btn-clear-log'>Clear log</button>
+        <button id='btn-clear-storage'>Clear storage</button>
+        <button id='btn-init-db'>(Re)init db</button>
+        <button id='btn-select1'>Select db rows</button>
+        <button id='btn-storage-size'>Approx. storage size</button>
+      </div>
+    </fieldset>
+    <div id='test-output'></div>
+    <style>
+      .toolbar {
+          display: flex;
+      }
+      .toolbar > * { margin: 0.25em; }
+      fieldset { border-radius: 0.5em; }
+    </style>
+    <script src="jswasm/sqlite3.js"></script>
+    <script src="common/SqliteTestUtil.js"></script>
+    <script src="demo-jsstorage.js"></script>
+  </body>
+</html>
diff --git a/ext/wasm/demo-jsstorage.js b/ext/wasm/demo-jsstorage.js
new file mode 100644
index 0000000000000000000000000000000000000000..cf820e40338f1d5aad2afa67b55dc9d057df5374
--- /dev/null
+++ b/ext/wasm/demo-jsstorage.js
@@ -0,0 +1,114 @@
+/*
+  2022-09-12
+
+  The author disclaims copyright to this source code.  In place of a
+  legal notice, here is a blessing:
+
+  *   May you do good and not evil.
+  *   May you find forgiveness for yourself and forgive others.
+  *   May you share freely, never taking more than you give.
+
+  ***********************************************************************
+
+  A basic test script for sqlite3.wasm with kvvfs support. This file
+  must be run in main JS thread and sqlite3.js must have been loaded
+  before it.
+*/
+'use strict';
+(function(){
+  const T = self.SqliteTestUtil;
+  const toss = function(...args){throw new Error(args.join(' '))};
+  const debug = console.debug.bind(console);
+  const eOutput = document.querySelector('#test-output');
+  const logC = console.log.bind(console)
+  const logE = function(domElement){
+    eOutput.append(domElement);
+  };
+  const logHtml = function(cssClass,...args){
+    const ln = document.createElement('div');
+    if(cssClass) ln.classList.add(cssClass);
+    ln.append(document.createTextNode(args.join(' ')));
+    logE(ln);
+  }
+  const log = function(...args){
+    logC(...args);
+    logHtml('',...args);
+  };
+  const warn = function(...args){
+    logHtml('warning',...args);
+  };
+  const error = function(...args){
+    logHtml('error',...args);
+  };
+  
+  const runTests = function(sqlite3){
+    const capi = sqlite3.capi,
+          oo = sqlite3.oo1,
+          wasm = sqlite3.wasm;
+    log("Loaded module:",capi.sqlite3_libversion(), capi.sqlite3_sourceid());
+    T.assert( 0 !== capi.sqlite3_vfs_find(null) );
+    if(!capi.sqlite3_vfs_find('kvvfs')){
+      error("This build is not kvvfs-capable.");
+      return;
+    }
+    
+    const dbStorage = 0 ? 'session' : 'local';
+    const theStore = 's'===dbStorage[0] ? sessionStorage : localStorage;
+    const db = new oo.JsStorageDb( dbStorage );
+    // Or: oo.DB(dbStorage, 'c', 'kvvfs')
+    log("db.storageSize():",db.storageSize());
+    document.querySelector('#btn-clear-storage').addEventListener('click',function(){
+      const sz = db.clearStorage();
+      log("kvvfs",db.filename+"Storage cleared:",sz,"entries.");
+    });
+    document.querySelector('#btn-clear-log').addEventListener('click',function(){
+      eOutput.innerText = '';
+    });
+    document.querySelector('#btn-init-db').addEventListener('click',function(){
+      try{
+        const saveSql = [];
+        db.exec({
+          sql: ["drop table if exists t;",
+                "create table if not exists t(a);",
+                "insert into t(a) values(?),(?),(?)"],
+          bind: [performance.now() >> 0,
+                 (performance.now() * 2) >> 0,
+                 (performance.now() / 2) >> 0],
+          saveSql
+        });
+        console.log("saveSql =",saveSql,theStore);
+        log("DB (re)initialized.");
+      }catch(e){
+        error(e.message);
+      }
+    });
+    const btnSelect = document.querySelector('#btn-select1');
+    btnSelect.addEventListener('click',function(){
+      log("DB rows:");
+      try{
+        db.exec({
+          sql: "select * from t order by a",
+          rowMode: 0,
+          callback: (v)=>log(v)
+        });
+      }catch(e){
+        error(e.message);
+      }
+    });
+    document.querySelector('#btn-storage-size').addEventListener('click',function(){
+      log("size.storageSize(",dbStorage,") says", db.storageSize(),
+          "bytes");
+    });
+    log("Storage backend:",db.filename);
+    if(0===db.selectValue('select count(*) from sqlite_master')){
+      log("DB is empty. Use the init button to populate it.");
+    }else{
+      log("DB contains data from a previous session. Use the Clear Ctorage button to delete it.");
+      btnSelect.click();
+    }
+  };
+
+  sqlite3InitModule(self.sqlite3TestModule).then((sqlite3)=>{
+    runTests(sqlite3);
+  });
+})();
diff --git a/ext/wasm/demo-worker1-promiser.c-pp.html b/ext/wasm/demo-worker1-promiser.c-pp.html
new file mode 100644
index 0000000000000000000000000000000000000000..e0b487bdf3ce94c8edeb908a33e0d52b46646288
--- /dev/null
+++ b/ext/wasm/demo-worker1-promiser.c-pp.html
@@ -0,0 +1,42 @@
+<!doctype html>
+<html lang="en-us">
+  <head>
+    <meta charset="utf-8">
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+    <link rel="shortcut icon" href="data:image/x-icon;," type="image/x-icon">
+    <link rel="stylesheet" href="common/emscripten.css"/>
+    <link rel="stylesheet" href="common/testing.css"/>
+//#if target=es6-module
+    <title>worker-promise (via ESM) tests</title>
+//#else
+    <title>worker-promise tests</title>
+//#endif
+  </head>
+  <body>
+    <header id='titlebar'><span>worker-promise tests</span></header>
+    <!-- emscripten bits -->
+    <figure id="module-spinner">
+      <div class="spinner"></div>
+      <div class='center'><strong>Initializing app...</strong></div>
+      <div class='center'>
+        On a slow internet connection this may take a moment.  If this
+        message displays for "a long time", intialization may have
+        failed and the JavaScript console may contain clues as to why.
+      </div>
+    </figure>
+    <div class="emscripten" id="module-status">Downloading...</div>
+    <div class="emscripten">
+      <progress value="0" max="100" id="module-progress" hidden='1'></progress>
+    </div><!-- /emscripten bits -->
+    <div>Most stuff on this page happens in the dev console.</div>
+    <hr>
+    <div id='test-output'></div>
+    <script src="common/SqliteTestUtil.js"></script>
+//#if target=es6-module
+    <script src="demo-worker1-promiser.mjs" type="module"></script>
+//#else
+    <script src="jswasm/sqlite3-worker1-promiser.js"></script>
+    <script src="demo-worker1-promiser.js"></script>
+//#endif
+  </body>
+</html>
diff --git a/ext/wasm/demo-worker1-promiser.c-pp.js b/ext/wasm/demo-worker1-promiser.c-pp.js
new file mode 100644
index 0000000000000000000000000000000000000000..f6fc9568ae286782b0469056e7293b5f31238ff0
--- /dev/null
+++ b/ext/wasm/demo-worker1-promiser.c-pp.js
@@ -0,0 +1,285 @@
+/*
+  2022-08-23
+
+  The author disclaims copyright to this source code.  In place of a
+  legal notice, here is a blessing:
+
+  *   May you do good and not evil.
+  *   May you find forgiveness for yourself and forgive others.
+  *   May you share freely, never taking more than you give.
+
+  ***********************************************************************
+
+  Demonstration of the sqlite3 Worker API #1 Promiser: a Promise-based
+  proxy for for the sqlite3 Worker #1 API.
+*/
+//#if target=es6-module
+import {default as promiserFactory} from "./jswasm/sqlite3-worker1-promiser.mjs";
+//#else
+"use strict";
+const promiserFactory = globalThis.sqlite3Worker1Promiser.v2;
+delete globalThis.sqlite3Worker1Promiser;
+//#endif
+(async function(){
+  const T = globalThis.SqliteTestUtil;
+  const eOutput = document.querySelector('#test-output');
+  const warn = console.warn.bind(console);
+  const error = console.error.bind(console);
+  const log = console.log.bind(console);
+  const logHtml = async function(cssClass,...args){
+    log.apply(this, args);
+    const ln = document.createElement('div');
+    if(cssClass) ln.classList.add(cssClass);
+    ln.append(document.createTextNode(args.join(' ')));
+    eOutput.append(ln);
+  };
+
+  let startTime;
+  const testCount = async ()=>{
+    logHtml("","Total test count:",T.counter+". Total time =",(performance.now() - startTime),"ms");
+  };
+
+  const promiserConfig = {
+//#ifnot target=es6-module
+    /**
+       The v1 interfaces uses an onready function. The v2 interface optionally
+       accepts one but does not require it. If provided, it is called _before_
+       the promise is resolved, and the promise is rejected if onready() throws.
+    */
+    onready: function(f){
+      /* f === the function returned by promiserFactory().
+         Ostensibly (f === workerPromise) but this function is
+         called before the promiserFactory() Promise resolves, so
+         before workerPromise is set. */
+      console.warn("This is the v2 interface - you don't need an onready() function.");
+    },
+//#endif
+    debug: 1 ? undefined : (...args)=>console.debug('worker debug',...args),
+    onunhandled: function(ev){
+      error("Unhandled worker message:",ev.data);
+    },
+    onerror: function(ev){
+      error("worker1 error:",ev);
+    }
+  };
+  const workerPromise = await promiserFactory(promiserConfig)
+        .then((func)=>{
+          console.log("Init complete. Starting tests momentarily.");
+          globalThis.sqlite3TestModule.setStatus(null)/*hide the HTML-side is-loading spinner*/;
+          return func;
+        });
+
+  const wtest = async function(msgType, msgArgs, callback){
+    if(2===arguments.length && 'function'===typeof msgArgs){
+      callback = msgArgs;
+      msgArgs = undefined;
+    }
+    const p = 1
+          ? workerPromise({type: msgType, args:msgArgs})
+          : workerPromise(msgType, msgArgs);
+    return callback ? p.then(callback).finally(testCount) : p;
+  };
+
+  let sqConfig;
+  const runTests = async function(){
+    const dbFilename = '/testing2.sqlite3';
+    startTime = performance.now();
+
+    await wtest('config-get', (ev)=>{
+      const r = ev.result;
+      log('sqlite3.config subset:', r);
+      T.assert('boolean' === typeof r.bigIntEnabled);
+      sqConfig = r;
+    });
+    logHtml('',
+            "Sending 'open' message and waiting for its response before continuing...");
+
+    await wtest('open', {
+      filename: dbFilename,
+      simulateError: 0 /* if true, fail the 'open' */,
+    }, function(ev){
+      const r = ev.result;
+      log("then open result",r);
+      T.assert(ev.dbId === r.dbId)
+        .assert(ev.messageId)
+        .assert('string' === typeof r.vfs);
+      promiserConfig.dbId = ev.dbId;
+    }).then(runTests2);
+  };
+
+  const runTests2 = async function(){
+    const mustNotReach = ()=>toss("This is not supposed to be reached.");
+
+    await wtest('exec',{
+      sql: ["create table t(a,b)",
+            "insert into t(a,b) values(1,2),(3,4),(5,6)"
+           ].join(';'),
+      resultRows: [], columnNames: [],
+      countChanges: sqConfig.bigIntEnabled ? 64 : true
+    }, function(ev){
+      ev = ev.result;
+      T.assert(0===ev.resultRows.length)
+        .assert(0===ev.columnNames.length)
+        .assert(sqConfig.bigIntEnabled
+                ? (3n===ev.changeCount)
+                : (3===ev.changeCount));
+    });
+
+    await wtest('exec',{
+      sql: 'select a a, b b from t order by a',
+      resultRows: [], columnNames: [],
+    }, function(ev){
+      ev = ev.result;
+      T.assert(3===ev.resultRows.length)
+        .assert(1===ev.resultRows[0][0])
+        .assert(6===ev.resultRows[2][1])
+        .assert(2===ev.columnNames.length)
+        .assert('b'===ev.columnNames[1]);
+    });
+
+    await wtest('exec',{
+      sql: 'select a a, b b from t order by a',
+      resultRows: [], columnNames: [],
+      rowMode: 'object',
+      countChanges: true
+    }, function(ev){
+      ev = ev.result;
+      T.assert(3===ev.resultRows.length)
+        .assert(1===ev.resultRows[0].a)
+        .assert(6===ev.resultRows[2].b)
+        .assert(0===ev.changeCount);
+    });
+
+    await wtest(
+      'exec',
+      {sql:'intentional_error'},
+      mustNotReach
+    ).catch((e)=>{
+      warn("Intentional error:",e);
+    });
+
+    await wtest('exec',{
+      sql:'select 1 union all select 3',
+      resultRows: []
+    }, function(ev){
+      ev = ev.result;
+      T.assert(2 === ev.resultRows.length)
+        .assert(1 === ev.resultRows[0][0])
+        .assert(3 === ev.resultRows[1][0])
+        .assert(undefined === ev.changeCount);
+    });
+
+    const resultRowTest1 = function f(ev){
+      if(undefined === f.counter) f.counter = 0;
+      if(null === ev.rowNumber){
+        /* End of result set. */
+        T.assert(undefined === ev.row)
+          .assert(2===ev.columnNames.length)
+          .assert('a'===ev.columnNames[0])
+          .assert('B'===ev.columnNames[1]);
+      }else{
+        T.assert(ev.rowNumber > 0);
+        ++f.counter;
+      }
+      log("exec() result row:",ev);
+      T.assert(null === ev.rowNumber || 'number' === typeof ev.row.B);
+    };
+    await wtest('exec',{
+      sql: 'select a a, b B from t order by a limit 3',
+      callback: resultRowTest1,
+      rowMode: 'object'
+    }, function(ev){
+      T.assert(3===resultRowTest1.counter);
+      resultRowTest1.counter = 0;
+    });
+
+    const resultRowTest2 = function f(ev){
+      if(null === ev.rowNumber){
+        /* End of result set. */
+        T.assert(undefined === ev.row)
+          .assert(1===ev.columnNames.length)
+          .assert('a'===ev.columnNames[0])
+      }else{
+        T.assert(ev.rowNumber > 0);
+        f.counter = ev.rowNumber;
+      }
+      log("exec() result row:",ev);
+      T.assert(null === ev.rowNumber || 'number' === typeof ev.row);
+    };
+    await wtest('exec',{
+      sql: 'select a a from t limit 3',
+      callback: resultRowTest2,
+      rowMode: 0
+    }, function(ev){
+      T.assert(3===resultRowTest2.counter);
+    });
+
+    const resultRowTest3 = function f(ev){
+      if(null === ev.rowNumber){
+        T.assert(3===ev.columnNames.length)
+          .assert('foo'===ev.columnNames[0])
+          .assert('bar'===ev.columnNames[1])
+          .assert('baz'===ev.columnNames[2]);
+      }else{
+        f.counter = ev.rowNumber;
+        T.assert('number' === typeof ev.row);
+      }
+    };
+    await wtest('exec',{
+      sql: "select 'foo' foo, a bar, 'baz' baz  from t limit 2",
+      callback: resultRowTest3,
+      columnNames: [],
+      rowMode: '$bar'
+    }, function(ev){
+      log("exec() result row:",ev);
+      T.assert(2===resultRowTest3.counter);
+    });
+
+    await wtest('exec',{
+      sql:[
+        'pragma foreign_keys=0;',
+        // ^^^ arbitrary query with no result columns
+        'select a, b from t order by a desc; select a from t;'
+        // exec() only honors SELECT results from the first
+        // statement with result columns (regardless of whether
+        // it has any rows).
+      ],
+      rowMode: 1,
+      resultRows: []
+    },function(ev){
+      const rows = ev.result.resultRows;
+      T.assert(3===rows.length).
+        assert(6===rows[0]);
+    });
+
+    await wtest('exec',{sql: 'delete from t where a>3'});
+
+    await wtest('exec',{
+      sql: 'select count(a) from t',
+      resultRows: []
+    },function(ev){
+      ev = ev.result;
+      T.assert(1===ev.resultRows.length)
+        .assert(2===ev.resultRows[0][0]);
+    });
+
+    await wtest('export', function(ev){
+      ev = ev.result;
+      T.assert('string' === typeof ev.filename)
+        .assert(ev.byteArray instanceof Uint8Array)
+        .assert(ev.byteArray.length > 1024)
+        .assert('application/x-sqlite3' === ev.mimetype);
+    });
+
+    /***** close() tests must come last. *****/
+    await wtest('close',{},function(ev){
+      T.assert('string' === typeof ev.result.filename);
+    });
+
+    await wtest('close', (ev)=>{
+      T.assert(undefined === ev.result.filename);
+    }).finally(()=>logHtml('',"That's all, folks!"));
+  }/*runTests2()*/;
+
+  runTests();
+})();
diff --git a/ext/wasm/demo-worker1.html b/ext/wasm/demo-worker1.html
new file mode 100644
index 0000000000000000000000000000000000000000..c766ffd4451be02654c3c874759c8fd1c4ae16c3
--- /dev/null
+++ b/ext/wasm/demo-worker1.html
@@ -0,0 +1,34 @@
+
+<!doctype html>
+<html lang="en-us">
+  <head>
+    <meta charset="utf-8">
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+    <link rel="shortcut icon" href="data:image/x-icon;," type="image/x-icon">
+    <link rel="stylesheet" href="common/emscripten.css"/>
+    <link rel="stylesheet" href="common/testing.css"/>
+    <title>sqlite3-worker1.js tests</title>
+  </head>
+  <body>
+    <header id='titlebar'><span>sqlite3-worker1.js tests</span></header>
+    <!-- emscripten bits -->
+    <figure id="module-spinner">
+      <div class="spinner"></div>
+      <div class='center'><strong>Initializing app...</strong></div>
+      <div class='center'>
+        On a slow internet connection this may take a moment.  If this
+        message displays for "a long time", intialization may have
+        failed and the JavaScript console may contain clues as to why.
+      </div>
+    </figure>
+    <div class="emscripten" id="module-status">Downloading...</div>
+    <div class="emscripten">
+      <progress value="0" max="100" id="module-progress" hidden='1'></progress>  
+    </div><!-- /emscripten bits -->
+    <div>Most stuff on this page happens in the dev console.</div>
+    <hr>
+    <div id='test-output'></div>
+    <script src="common/SqliteTestUtil.js"></script>
+    <script src="demo-worker1.js"></script>
+  </body>
+</html>
diff --git a/ext/wasm/demo-worker1.js b/ext/wasm/demo-worker1.js
new file mode 100644
index 0000000000000000000000000000000000000000..60f5e8dec01de73579d2af0ddd688b184299cf54
--- /dev/null
+++ b/ext/wasm/demo-worker1.js
@@ -0,0 +1,345 @@
+/*
+  2022-05-22
+
+  The author disclaims copyright to this source code.  In place of a
+  legal notice, here is a blessing:
+
+  *   May you do good and not evil.
+  *   May you find forgiveness for yourself and forgive others.
+  *   May you share freely, never taking more than you give.
+
+  ***********************************************************************
+
+  A basic test script for sqlite3-worker1.js.
+
+  Note that the wrapper interface demonstrated in
+  demo-worker1-promiser.js is much easier to use from client code, as it
+  lacks the message-passing acrobatics demonstrated in this file.
+*/
+'use strict';
+(function(){
+  const T = self.SqliteTestUtil;
+  const SW = new Worker("jswasm/sqlite3-worker1.js");
+  const DbState = {
+    id: undefined
+  };
+  const eOutput = document.querySelector('#test-output');
+  const log = console.log.bind(console);
+  const logHtml = function(cssClass,...args){
+    log.apply(this, args);
+    const ln = document.createElement('div');
+    if(cssClass) ln.classList.add(cssClass);
+    ln.append(document.createTextNode(args.join(' ')));
+    eOutput.append(ln);
+  };
+  const warn = console.warn.bind(console);
+  const error = console.error.bind(console);
+  const toss = (...args)=>{throw new Error(args.join(' '))};
+
+  SW.onerror = function(event){
+    error("onerror",event);
+  };
+
+  let startTime;
+
+  /**
+     A queue for callbacks which are to be run in response to async
+     DB commands. See the notes in runTests() for why we need
+     this. The event-handling plumbing of this file requires that
+     any DB command which includes a `messageId` property also have
+     a queued callback entry, as the existence of that property in
+     response payloads is how it knows whether or not to shift an
+     entry off of the queue.
+  */
+  const MsgHandlerQueue = {
+    queue: [],
+    id: 0,
+    push: function(type,callback){
+      this.queue.push(callback);
+      return type + '-' + (++this.id);
+    },
+    shift: function(){
+      return this.queue.shift();
+    }
+  };
+
+  const testCount = ()=>{
+    logHtml("","Total test count:",T.counter+". Total time =",(performance.now() - startTime),"ms");
+  };
+
+  const logEventResult = function(ev){
+    const evd = ev.result;
+    logHtml(evd.errorClass ? 'error' : '',
+            "runOneTest",ev.messageId,"Worker time =",
+            (ev.workerRespondTime - ev.workerReceivedTime),"ms.",
+            "Round-trip event time =",
+            (performance.now() - ev.departureTime),"ms.",
+            (evd.errorClass ? evd.message : "")//, JSON.stringify(evd)
+           );
+  };
+
+  const runOneTest = function(eventType, eventArgs, callback){
+    T.assert(eventArgs && 'object'===typeof eventArgs);
+    /* ^^^ that is for the testing and messageId-related code, not
+       a hard requirement of all of the Worker-exposed APIs. */
+    const messageId = MsgHandlerQueue.push(eventType,function(ev){
+      logEventResult(ev);
+      if(callback instanceof Function){
+        callback(ev);
+        testCount();
+      }
+    });
+    const msg = {
+      type: eventType,
+      args: eventArgs,
+      dbId: DbState.id,
+      messageId: messageId,
+      departureTime: performance.now()
+    };
+    log("Posting",eventType,"message to worker dbId="+(DbState.id||'default')+':',msg);
+    SW.postMessage(msg);
+  };
+
+  /** Methods which map directly to onmessage() event.type keys.
+      They get passed the inbound event.data. */
+  const dbMsgHandler = {
+    open: function(ev){
+      DbState.id = ev.dbId;
+      log("open result",ev);
+    },
+    exec: function(ev){
+      log("exec result",ev);
+    },
+    export: function(ev){
+      log("export result",ev);
+    },
+    error: function(ev){
+      error("ERROR from the worker:",ev);
+      logEventResult(ev);
+    },
+    resultRowTest1: function f(ev){
+      if(undefined === f.counter) f.counter = 0;
+      if(null === ev.rowNumber){
+        /* End of result set. */
+        T.assert(undefined === ev.row)
+          .assert(Array.isArray(ev.columnNames))
+          .assert(ev.columnNames.length);
+      }else{
+        T.assert(ev.rowNumber > 0);
+        ++f.counter;
+      }
+      //log("exec() result row:",ev);
+      T.assert(null === ev.rowNumber || 'number' === typeof ev.row.b);
+    }
+  };
+
+  /**
+     "The problem" now is that the test results are async. We
+     know, however, that the messages posted to the worker will
+     be processed in the order they are passed to it, so we can
+     create a queue of callbacks to handle them. The problem
+     with that approach is that it's not error-handling
+     friendly, in that an error can cause us to bypass a result
+     handler queue entry. We have to perform some extra
+     acrobatics to account for that.
+
+     Problem #2 is that we cannot simply start posting events: we
+     first have to post an 'open' event, wait for it to respond, and
+     collect its db ID before continuing. If we don't wait, we may
+     well fire off 10+ messages before the open actually responds.
+  */
+  const runTests2 = function(){
+    const mustNotReach = ()=>{
+      throw new Error("This is not supposed to be reached.");
+    };
+    runOneTest('exec',{
+      sql: ["create table t(a,b);",
+            "insert into t(a,b) values(1,2),(3,4),(5,6)"
+           ],
+      resultRows: [], columnNames: []
+    }, function(ev){
+      ev = ev.result;
+      T.assert(0===ev.resultRows.length)
+        .assert(0===ev.columnNames.length);
+    });
+    runOneTest('exec',{
+      sql: 'select a a, b b from t order by a',
+      resultRows: [], columnNames: [], saveSql:[]
+    }, function(ev){
+      ev = ev.result;
+      T.assert(3===ev.resultRows.length)
+        .assert(1===ev.resultRows[0][0])
+        .assert(6===ev.resultRows[2][1])
+        .assert(2===ev.columnNames.length)
+        .assert('b'===ev.columnNames[1]);
+    });
+    //if(1){ error("Returning prematurely for testing."); return; }
+    runOneTest('exec',{
+      sql: 'select a a, b b from t order by a',
+      resultRows: [], columnNames: [],
+      rowMode: 'object'
+    }, function(ev){
+      ev = ev.result;
+      T.assert(3===ev.resultRows.length)
+        .assert(1===ev.resultRows[0].a)
+        .assert(6===ev.resultRows[2].b)
+    });
+    runOneTest('exec',{sql:'intentional_error'}, mustNotReach);
+    // Ensure that the message-handler queue survives ^^^ that error...
+    runOneTest('exec',{
+      sql:'select 1',
+      resultRows: [],
+      //rowMode: 'array', // array is the default in the Worker interface
+    }, function(ev){
+      ev = ev.result;
+      T.assert(1 === ev.resultRows.length)
+        .assert(1 === ev.resultRows[0][0]);
+    });
+    runOneTest('exec',{
+      sql: 'select a a, b b from t order by a',
+      callback: 'resultRowTest1',
+      rowMode: 'object'
+    }, function(ev){
+      T.assert(3===dbMsgHandler.resultRowTest1.counter);
+      dbMsgHandler.resultRowTest1.counter = 0;
+    });
+    runOneTest('exec',{
+      sql:[
+        "pragma foreign_keys=0;",
+        // ^^^ arbitrary query with no result columns
+        "select a, b from t order by a desc;",
+        "select a from t;"
+        // exec() only honors SELECT results from the first
+        // statement with result columns (regardless of whether
+        // it has any rows).
+      ],
+      rowMode: 1,
+      resultRows: []
+    },function(ev){
+      const rows = ev.result.resultRows;
+      T.assert(3===rows.length).
+        assert(6===rows[0]);
+    });
+    runOneTest('exec',{sql: 'delete from t where a>3'});
+    runOneTest('exec',{
+      sql: 'select count(a) from t',
+      resultRows: []
+    },function(ev){
+      ev = ev.result;
+      T.assert(1===ev.resultRows.length)
+        .assert(2===ev.resultRows[0][0]);
+    });
+    runOneTest('export',{}, function(ev){
+      ev = ev.result;
+      log("export result:",ev);
+      T.assert('string' === typeof ev.filename)
+        .assert(ev.byteArray instanceof Uint8Array)
+        .assert(ev.byteArray.length > 1024)
+        .assert('application/x-sqlite3' === ev.mimetype);
+    });
+    /***** close() tests must come last. *****/
+    runOneTest('close',{unlink:true},function(ev){
+      ev = ev.result;
+      T.assert('string' === typeof ev.filename);
+    });
+    runOneTest('close',{unlink:true},function(ev){
+      ev = ev.result;
+      T.assert(undefined === ev.filename);
+      logHtml('warning',"This is the final test.");
+    });
+    logHtml('warning',"Finished posting tests. Waiting on async results.");
+  };
+
+  const runTests = function(){
+    /**
+       Design decision time: all remaining tests depend on the 'open'
+       command having succeeded. In order to support multiple DBs, the
+       upcoming commands ostensibly have to know the ID of the DB they
+       want to talk to. We have two choices:
+
+       1) We run 'open' and wait for its response, which contains the
+       db id.
+
+       2) We have the Worker automatically use the current "default
+       db" (the one which was most recently opened) if no db id is
+       provided in the message. When we do this, the main thread may
+       well fire off _all_ of the test messages before the 'open'
+       actually responds, but because the messages are handled on a
+       FIFO basis, those after the initial 'open' will pick up the
+       "default" db. However, if the open fails, then all pending
+       messages (until next next 'open', at least) except for 'close'
+       will fail and we have no way of cancelling them once they've
+       been posted to the worker.
+
+       Which approach we use below depends on the boolean value of
+       waitForOpen.
+    */
+    const waitForOpen = 1,
+          simulateOpenError = 0 /* if true, the remaining tests will
+                                   all barf if waitForOpen is
+                                   false. */;
+    logHtml('',
+            "Sending 'open' message and",(waitForOpen ? "" : "NOT ")+
+            "waiting for its response before continuing.");
+    startTime = performance.now();
+    runOneTest('open', {
+      filename:'testing2.sqlite3',
+      simulateError: simulateOpenError
+    }, function(ev){
+      log("open result",ev);
+      T.assert('testing2.sqlite3'===ev.result.filename)
+        .assert(ev.dbId)
+        .assert(ev.messageId)
+        .assert('string' === typeof ev.result.vfs);
+      DbState.id = ev.dbId;
+      if(waitForOpen) setTimeout(runTests2, 0);
+    });
+    if(!waitForOpen) runTests2();
+  };
+
+  SW.onmessage = function(ev){
+    if(!ev.data || 'object'!==typeof ev.data){
+      warn("Unknown sqlite3-worker message type:",ev);
+      return;
+    }
+    ev = ev.data/*expecting a nested object*/;
+    //log("main window onmessage:",ev);
+    if(ev.result && ev.messageId){
+      /* We're expecting a queued-up callback handler. */
+      const f = MsgHandlerQueue.shift();
+      if('error'===ev.type){
+        dbMsgHandler.error(ev);
+        return;
+      }
+      T.assert(f instanceof Function);
+      f(ev);
+      return;
+    }
+    switch(ev.type){
+        case 'sqlite3-api':
+          switch(ev.result){
+              case 'worker1-ready':
+                log("Message:",ev);
+                self.sqlite3TestModule.setStatus(null);
+                runTests();
+                return;
+              default:
+                warn("Unknown sqlite3-api message type:",ev);
+                return;
+          }
+        default:
+          if(dbMsgHandler.hasOwnProperty(ev.type)){
+            try{dbMsgHandler[ev.type](ev);}
+            catch(err){
+              error("Exception while handling db result message",
+                    ev,":",err);
+            }
+            return;
+          }
+          warn("Unknown sqlite3-api message type:",ev);
+    }
+  };
+  log("Init complete, but async init bits may still be running.");
+  log("Installing Worker into global scope SW for dev purposes.");
+  self.SW = SW;
+})();
diff --git a/ext/wasm/dist.make b/ext/wasm/dist.make
new file mode 100644
index 0000000000000000000000000000000000000000..e820e066d4626cd4513689f0af97ce7b742e42fd
--- /dev/null
+++ b/ext/wasm/dist.make
@@ -0,0 +1,144 @@
+#!/do/not/make
+#^^^ help emacs select edit mode
+#
+# Intended to include'd by ./GNUmakefile.
+#
+# 'make dist' rules for creating a distribution archive of the WASM/JS
+# pieces, noting that we only build a dist of the built files, not the
+# numerous pieces required to build them.
+#
+# Use 'make snapshot' to create "snapshot" releases. They use a
+# distinctly different zip file and top directory name to distinguish
+# them from release builds.
+#######################################################################
+MAKEFILE.dist := $(lastword $(MAKEFILE_LIST))
+
+########################################################################
+# Chicken/egg situation: we need $(bin.version-info) to get the
+# version info for the archive name, but that binary may not yet be
+# built, and won't be built until we expand the dependencies. Thus we
+# have to use a temporary name for the archive until we can get
+# that binary built.
+ifeq (1,$(SQLITE_C_IS_SEE))
+dist-name-extra := -see
+else
+dist-name-extra :=
+endif
+ifeq (,$(filter snapshot,$(MAKECMDGOALS)))
+dist-name-prefix := sqlite-wasm$(dist-name-extra)
+else
+dist-name-prefix := sqlite-wasm$(dist-name-extra)-snapshot-$(shell /usr/bin/date +%Y%m%d)
+endif
+dist-name := $(dist-name-prefix)-TEMP
+
+########################################################################
+# dist.build must be the name of a target which triggers the build of
+# the files to be packed into the dist archive.  The intention is that
+# it be one of (o0, o1, o2, o3, os, oz), each of which uses like-named
+# -Ox optimization level flags. The o2 target provides the best
+# overall runtime speeds. The oz target provides slightly slower
+# speeds (roughly 10%) with significantly smaller WASM file
+# sizes. Note that -O2 (the o2 target) results in faster binaries than
+# both -O3 and -Os (the o3 and os targets) in all tests run to
+# date. Our general policy is that we want the smallest binaries for
+# dist zip files, so use the oz build unless there is a compelling
+# reason not to.
+dist.build ?= oz
+
+dist-dir.top := $(dist-name)
+dist-dir.jswasm := $(dist-dir.top)/$(notdir $(dir.dout))
+dist-dir.common := $(dist-dir.top)/common
+dist.top.extras := \
+    demo-123.html demo-123-worker.html demo-123.js \
+    tester1.html tester1-worker.html tester1-esm.html \
+    tester1.js tester1.mjs \
+    demo-jsstorage.html demo-jsstorage.js \
+    demo-worker1.html demo-worker1.js \
+    demo-worker1-promiser.html demo-worker1-promiser.js \
+    demo-worker1-promiser-esm.html demo-worker1-promiser.mjs
+dist.jswasm.extras := $(sqlite3.wasm) \
+  $(sqlite3-api.ext.jses)
+dist.common.extras := \
+    $(wildcard $(dir.common)/*.css) \
+    $(dir.common)/SqliteTestUtil.js
+
+#$(info sqlite3-worker1-promiser.mjs = $(sqlite3-worker1-promiser.mjs))
+#$(info sqlite3-worker1.js = $(sqlite3-worker1.js))
+#$(info sqlite3-api.ext.jses = $(sqlite3-api.ext.jses))
+#$(info dist.jswasm.extras = $(dist.jswasm.extras))
+.PHONY: dist snapshot
+# DIST_STRIP_COMMENTS $(call)able to be used in stripping C-style
+# from the dist copies of certain files.
+#
+#  $1 = source js file
+#  $2 = flags for $(bin.stripcomments)
+define DIST_STRIP_COMMENTS
+$(bin.stripccomments) $(2) < $(1) > $(dist-dir.jswasm)/$(notdir $(1)) || exit;
+endef
+# STRIP_K1.js = list of JS files which need to be passed through
+# $(bin.stripcomments) with a single -k flag.
+STRIP_K1.js := $(sqlite3-worker1.js) $(sqlite3-worker1-promiser.js) \
+  $(sqlite3-worker1-bundler-friendly.js) \
+  $(sqlite3-api.ext.jses)
+# STRIP_K2.js = list of JS files which need to be passed through
+# $(bin.stripcomments) with two -k flags.
+STRIP_K2.js := $(sqlite3.js) $(sqlite3.mjs) \
+  $(sqlite3-bundler-friendly.mjs) $(sqlite3-node.mjs)
+########################################################################
+# dist: create the end-user deliverable archive.
+#
+# Maintenance reminder: because dist depends on $(dist.build), and
+# $(dist.build) will depend on clean, having any deps on
+# $(dist-archive) which themselves may be cleaned up by the clean
+# target will lead to grief in parallel builds (-j #). Thus
+# dist's deps must be trimmed to non-generated files or
+# files which are _not_ cleaned up by the clean target.
+#
+# Note that we require $(bin.version-info) in order to figure out the
+# dist file's name, so cannot (without a recursive make) have the
+# target name equal to the archive name.
+dist: \
+    $(bin.stripccomments) $(bin.version-info) \
+    $(dist.build) $(STRIP_K1.js) $(STRIP_K2.js) \
+    $(dist.jswasm.extras) $(dist.common.extras) \
+    $(MAKEFILE) $(MAKEFILE.dist)
+	@echo "Making end-user deliverables..."
+	@rm -fr $(dist-dir.top)
+	@mkdir -p $(dist-dir.jswasm) $(dist-dir.common)
+	@cp -p $(dist.top.extras) $(dist-dir.top)
+	@cp -p README-dist.txt $(dist-dir.top)/README.txt
+	@cp -p index-dist.html $(dist-dir.top)/index.html
+	@cp -p $(dist.jswasm.extras) $(dist-dir.jswasm)
+	@$(foreach JS,$(STRIP_K1.js),$(call DIST_STRIP_COMMENTS,$(JS),-k))
+	@$(foreach JS,$(STRIP_K2.js),$(call DIST_STRIP_COMMENTS,$(JS),-k -k))
+	@cp -p $(dist.common.extras) $(dist-dir.common)
+	@set -e; \
+		vnum=$$($(bin.version-info) --download-version); \
+		vdir=$(dist-name-prefix)-$$vnum; \
+		arczip=$$vdir.zip; \
+		echo "Making $$arczip ..."; \
+		rm -fr $$arczip $$vdir; \
+		mv $(dist-dir.top) $$vdir; \
+		zip -qr $$arczip $$vdir; \
+		rm -fr $$vdir; \
+		ls -la $$arczip; \
+		set +e; \
+		unzip -lv $$arczip || echo "Missing unzip app? Not fatal."
+ifeq (,$(wasm.docs.found))
+snapshot: dist
+	@echo "To upload the snapshot build to the wasm docs server:"; \
+	echo "1) move $(dist-name-prefix)*.zip to the top of a wasm docs checkout."; \
+  echo "2) run 'make uv-sync'"
+else
+snapshot: dist
+	@echo "Moving snapshot to [$(wasm.docs.found)]..."; \
+	mv $(dist-name-prefix)*.zip $(wasm.docs.found)/.
+	@echo "Run 'make uv-sync' from $(wasm.docs.found) to upload it."
+endif
+# We need a separate `clean` rule to account for weirdness in
+# a sub-make, where we get a copy of the $(dist-name) dir
+# copied into the new $(dist-name) dir.
+.PHONY: dist-clean
+clean: dist-clean
+dist-clean:
+	rm -fr $(dist-name) $(wildcard sqlite-wasm-*.zip)
diff --git a/ext/wasm/example_extra_init.c b/ext/wasm/example_extra_init.c
new file mode 100644
index 0000000000000000000000000000000000000000..b91d757cd596f474c84724f086d21c55e73a442a
--- /dev/null
+++ b/ext/wasm/example_extra_init.c
@@ -0,0 +1,23 @@
+/*
+** If the canonical build process finds the file
+** sqlite3_wasm_extra_init.c in the main wasm build directory, it
+** arranges to include that file in the build of sqlite3.wasm and
+** defines SQLITE_EXTRA_INIT=sqlite3_wasm_extra_init.
+**
+** The C file must define the function sqlite3_wasm_extra_init() with
+** this signature:
+**
+**  int sqlite3_wasm_extra_init(const char *)
+**
+** and the sqlite3 library will call it with an argument of NULL one
+** time during sqlite3_initialize(). If it returns non-0,
+** initialization of the library will fail.
+*/
+
+#include "sqlite3.h"
+#include <stdio.h>
+
+int sqlite3_wasm_extra_init(const char *z){
+  fprintf(stderr,"%s: %s()\n", __FILE__, __func__);
+  return 0;
+}
diff --git a/ext/wasm/fiddle.make b/ext/wasm/fiddle.make
new file mode 100644
index 0000000000000000000000000000000000000000..2a43959e2b6d8fc28a478e79a2899fbc0a7a7c6d
--- /dev/null
+++ b/ext/wasm/fiddle.make
@@ -0,0 +1,194 @@
+#!/do/not/make
+#^^^ help emacs select edit mode
+#
+# Intended to include'd by ./GNUmakefile.
+#######################################################################
+MAKEFILE.fiddle := $(lastword $(MAKEFILE_LIST))
+
+########################################################################
+# shell.c and its build flags...
+ifneq (1,$(MAKING_CLEAN))
+  make-np-0 := make -C  $(dir.top) -n -p
+  make-np-1 := sed -e 's/(TOP)/(dir.top)/g'
+  # Extract SHELL_OPT and SHELL_DEP from the top-most makefile and import
+  # them as vars here...
+  $(eval $(shell $(make-np-0) | grep -e '^SHELL_OPT ' | $(make-np-1)))
+  $(eval $(shell $(make-np-0) | grep -e '^SHELL_DEP ' | $(make-np-1)))
+  # ^^^ can't do that in 1 invocation b/c newlines get stripped
+  ifeq (,$(SHELL_OPT))
+  $(error Could not parse SHELL_OPT from $(dir.top)/Makefile.)
+  endif
+  ifeq (,$(SHELL_DEP))
+  $(error Could not parse SHELL_DEP from $(dir.top)/Makefile.)
+  endif
+$(dir.top)/shell.c: $(SHELL_DEP) $(dir.tool)/mkshellc.tcl $(sqlite3.c)
+	$(MAKE) -C $(dir.top) shell.c
+endif
+# /shell.c
+########################################################################
+
+EXPORTED_FUNCTIONS.fiddle := $(dir.tmp)/EXPORTED_FUNCTIONS.fiddle
+fiddle.emcc-flags = \
+  $(emcc.cflags) $(emcc_opt_full) \
+  --minify 0 \
+  -sALLOW_TABLE_GROWTH \
+  -sABORTING_MALLOC \
+  -sSTRICT_JS=0 \
+  -sENVIRONMENT=web,worker \
+  -sMODULARIZE \
+  -sDYNAMIC_EXECUTION=0 \
+  -sWASM_BIGINT=$(emcc.WASM_BIGINT) \
+  -sEXPORT_NAME=$(sqlite3.js.init-func) \
+  -Wno-limited-postlink-optimizations \
+  $(emcc.exportedRuntimeMethods) \
+  -sEXPORTED_FUNCTIONS=@$(abspath $(EXPORTED_FUNCTIONS.fiddle)) \
+  -sEXPORTED_RUNTIME_METHODS=FS,wasmMemory \
+  $(SQLITE_OPT.full-featured) \
+  $(SQLITE_OPT.common) \
+  $(SHELL_OPT) \
+  -UHAVE_READLINE -UHAVE_EDITLINE -UHAVE_LINENOISE \
+  -USQLITE_HAVE_ZLIB \
+  -USQLITE_WASM_BARE_BONES \
+  -DSQLITE_SHELL_FIDDLE
+
+# Flags specifically for debug builds of fiddle. Performance suffers
+# greatly in debug builds.
+fiddle.emcc-flags.debug := $(fiddle.emcc-flags) \
+  -DSQLITE_DEBUG \
+  -DSQLITE_ENABLE_SELECTTRACE \
+  -DSQLITE_ENABLE_WHERETRACE
+
+fiddle.EXPORTED_FUNCTIONS.in := \
+    EXPORTED_FUNCTIONS.fiddle.in \
+    $(dir.api)/EXPORTED_FUNCTIONS.sqlite3-core \
+    $(dir.api)/EXPORTED_FUNCTIONS.sqlite3-extras
+
+$(EXPORTED_FUNCTIONS.fiddle): $(MKDIR.bld) $(fiddle.EXPORTED_FUNCTIONS.in) \
+    $(MAKEFILE.fiddle)
+	sort -u $(fiddle.EXPORTED_FUNCTIONS.in) > $@
+
+fiddle.cses := $(dir.top)/shell.c $(sqlite3-wasm.c)
+
+fiddle: $(fiddle-module.js) $(fiddle-module.js.debug)
+fiddle.debug: $(fiddle-module.js.debug)
+
+clean: clean-fiddle
+clean-fiddle:
+	rm -f $(dir.fiddle)/fiddle-module.js \
+        $(dir.fiddle)/*.wasm \
+        $(dir.fiddle)/sqlite3-opfs-*.js \
+        $(dir.fiddle)/*.gz \
+        EXPORTED_FUNCTIONS.fiddle
+	rm -fr $(dir.fiddle-debug)
+.PHONY: fiddle fiddle.debug
+all: fiddle
+
+########################################################################
+# fiddle_remote is the remote destination for the fiddle app. It
+# must be a [user@]HOST:/path for rsync.
+# Note that the target "should probably" contain a symlink of
+# index.html -> fiddle.html.
+fiddle_remote ?=
+ifeq (,$(fiddle_remote))
+ifneq (,$(wildcard /home/stephan))
+  fiddle_remote = wh:www/wh/sqlite3/.
+else ifneq (,$(wildcard /home/drh))
+  #fiddle_remote = if appropriate, add that user@host:/path here
+endif
+endif
+push-fiddle: fiddle
+	@if [ x = "x$(fiddle_remote)" ]; then \
+		echo "fiddle_remote must be a [user@]HOST:/path for rsync"; \
+		exit 1; \
+	fi
+	rsync -va fiddle/ $(fiddle_remote)
+# end fiddle remote push
+########################################################################
+
+
+########################################################################
+# Explanation of the emcc build flags follows. Full docs for these can
+# be found at:
+#
+#  https://github.com/emscripten-core/emscripten/blob/main/src/settings.js
+#
+# -sENVIRONMENT=web: elides bootstrap code related to non-web JS
+#  environments like node.js. Removing this makes the output a tiny
+#  tick larger but hypothetically makes it more portable to
+#  non-browser JS environments.
+#
+# -sMODULARIZE: changes how the generated code is structured to avoid
+#  declaring a global Module object and instead installing a function
+#  which loads and initializes the module. The function is named...
+#
+# -sEXPORT_NAME=jsFunctionName (see -sMODULARIZE)
+#
+# -sEXPORTED_RUNTIME_METHODS=@/absolute/path/to/file: a file
+#  containing a list of emscripten-supplied APIs, one per line, which
+#  must be exported into the generated JS. Must be an absolute path!
+#
+# -sEXPORTED_FUNCTIONS=@/absolute/path/to/file: a file containing a
+#  list of C functions, one per line, which must be exported via wasm
+#  so they're visible to JS. C symbols names in that file must all
+#  start with an underscore for reasons known only to the emcc
+#  developers. e.g., _sqlite3_open_v2 and _sqlite3_finalize. Must be
+#  an absolute path!
+#
+# -sSTRICT_JS ensures that the emitted JS code includes the 'use
+#  strict' option. Note that -sSTRICT is more broadly-scoped and
+#  results in build errors.
+#
+# -sALLOW_TABLE_GROWTH is required for (at a minimum) the UDF-binding
+#  feature. Without it, JS functions cannot be made to proxy C-side
+#  callbacks.
+#
+# -sABORTING_MALLOC causes the JS-bound _malloc() to abort rather than
+#  return 0 on OOM. If set to 0 then all code which uses _malloc()
+#  must, just like in C, check the result before using it, else
+#  they're likely to corrupt the JS/WASM heap by writing to its
+#  address of 0. It is, as of this writing, enabled in Emscripten by
+#  default but we enable it explicitly in case that default changes.
+#
+# -sDYNAMIC_EXECUTION=0 disables eval() and the Function constructor.
+#  If the build runs without these, it's preferable to use this flag
+#  because certain execution environments disallow those constructs.
+#  This flag is not strictly necessary, however.
+#
+# -sWASM_BIGINT is UNTESTED but "should" allow the int64-using C APIs
+#  to work with JS/wasm, insofar as the JS environment supports the
+#  BigInt type. That support requires an extremely recent browser:
+#  Safari didn't get that support until late 2020.
+#
+# --no-entry: for compiling library code with no main(). If this is
+#  not supplied and the code has a main(), it is called as part of the
+#  module init process. Note that main() is #if'd out of shell.c
+#  (renamed) when building in wasm mode.
+#
+# --pre-js/--post-js=FILE relative or absolute paths to JS files to
+#  prepend/append to the emcc-generated bootstrapping JS. It's
+#  easier/faster to develop with separate JS files (reduces rebuilding
+#  requirements) but certain configurations, namely -sMODULARIZE, may
+#  require using at least a --pre-js file. They can be used
+#  individually and need not be paired.
+#
+# -O0..-O3 and -Oz: optimization levels affect not only C-style
+#  optimization but whether or not the resulting generated JS code
+#  gets minified. -O0 compiles _much_ more quickly than -O3 or -Oz,
+#  and doesn't minimize any JS code, so is recommended for
+#  development. -O3 or -Oz are recommended for deployment, but
+#  primarily because -Oz will shrink the wasm file notably. JS-side
+#  minification makes little difference in terms of overall
+#  distributable size.
+#
+# --minify 0: disables minification of the generated JS code,
+#  regardless of optimization level. Minification of the JS has
+#  minimal overall effect in the larger scheme of things and results
+#  in JS files which can neither be edited nor viewed as text files in
+#  Fossil (which flags them as binary because of their extreme line
+#  lengths). Interestingly, whether or not the comments in the
+#  generated JS file get stripped is unaffected by this setting and
+#  depends entirely on the optimization level. Higher optimization
+#  levels reduce the size of the JS considerably even without
+#  minification.
+#
+########################################################################
diff --git a/ext/wasm/fiddle/fiddle-worker.js b/ext/wasm/fiddle/fiddle-worker.js
new file mode 100644
index 0000000000000000000000000000000000000000..27d915eb2c25221140a0c639ad44274224944d7f
--- /dev/null
+++ b/ext/wasm/fiddle/fiddle-worker.js
@@ -0,0 +1,381 @@
+/*
+  2022-05-20
+
+  The author disclaims copyright to this source code.  In place of a
+  legal notice, here is a blessing:
+
+  *   May you do good and not evil.
+  *   May you find forgiveness for yourself and forgive others.
+  *   May you share freely, never taking more than you give.
+
+  ***********************************************************************
+
+  This is the JS Worker file for the sqlite3 fiddle app. It loads the
+  sqlite3 wasm module and offers access to the db via the Worker
+  message-passing interface.
+
+  Forewarning: this API is still very much Under Construction and
+  subject to any number of changes as experience reveals what those
+  need to be.
+
+  Because we can have only a single message handler, as opposed to an
+  arbitrary number of discrete event listeners like with DOM elements,
+  we have to define a lower-level message API. Messages abstractly
+  look like:
+
+  { type: string, data: type-specific value }
+
+  Where 'type' is used for dispatching and 'data' is a
+  'type'-dependent value.
+
+  The 'type' values expected by each side of the main/worker
+  connection vary. The types are described below but subject to
+  change at any time as this experiment evolves.
+
+  Workers-to-Main types
+
+  - stdout, stderr: indicate stdout/stderr output from the wasm
+    layer. The data property is the string of the output, noting
+    that the emscripten binding emits these one line at a time. Thus,
+    if a C-side puts() emits multiple lines in a single call, the JS
+    side will see that as multiple calls. Example:
+
+    {type:'stdout', data: 'Hi, world.'}
+
+  - module: Status text. This is intended to alert the main thread
+    about module loading status so that, e.g., the main thread can
+    update a progress widget and DTRT when the module is finished
+    loading and available for work. Status messages come in the form
+
+    {type:'module', data:{
+        type:'status',
+        data: {text:string|null, step:1-based-integer}
+    }
+
+    with an incrementing step value for each subsequent message. When
+    the module loading is complete, a message with a text value of
+    null is posted.
+
+  - working: data='start'|'end'. Indicates that work is about to be
+    sent to the module or has just completed. This can be used, e.g.,
+    to disable UI elements which should not be activated while work
+    is pending. Example:
+
+    {type:'working', data:'start'}
+
+  Main-to-Worker types:
+
+  - shellExec: data=text to execute as if it had been entered in the
+    sqlite3 CLI shell app (as opposed to sqlite3_exec()). This event
+    causes the worker to emit a 'working' event (data='start') before
+    it starts and a 'working' event (data='end') when it finished. If
+    called while work is currently being executed it emits stderr
+    message instead of doing actual work, as the underlying db cannot
+    handle concurrent tasks. Example:
+
+    {type:'shellExec', data: 'select * from sqlite_master'}
+
+  - More TBD as the higher-level db layer develops.
+*/
+
+/*
+  Apparent browser(s) bug: console messages emitted may be duplicated
+  in the console, even though they're provably only run once. See:
+
+  https://stackoverflow.com/questions/49659464
+
+  Noting that it happens in Firefox as well as Chrome. Harmless but
+  annoying.
+*/
+"use strict";
+(function(){
+  /**
+     Posts a message in the form {type,data}. If passed more than 2
+     args, the 3rd must be an array of "transferable" values to pass
+     as the 2nd argument to postMessage(). */
+  const wMsg =
+        (type,data,transferables)=>{
+          postMessage({type, data}, transferables || []);
+        };
+  const stdout = (...args)=>wMsg('stdout', args);
+  const stderr = (...args)=>wMsg('stderr', args);
+  const toss = (...args)=>{
+    throw new Error(args.join(' '));
+  };
+  const fixmeOPFS = "(FIXME: won't work with OPFS-over-sqlite3_vfs.)";
+  let sqlite3 /* gets assigned when the wasm module is loaded */;
+
+  self.onerror = function(/*message, source, lineno, colno, error*/) {
+    const err = arguments[4];
+    if(err && 'ExitStatus'==err.name){
+      /* This is relevant for the sqlite3 shell binding but not the
+         lower-level binding. */
+      fiddleModule.isDead = true;
+      stderr("FATAL ERROR:", err.message);
+      stderr("Restarting the app requires reloading the page.");
+      wMsg('error', err);
+    }
+    console.error(err);
+    fiddleModule.setStatus('Exception thrown, see JavaScript console: '+err);
+  };
+
+  const Sqlite3Shell = {
+    /** Returns the name of the currently-opened db. */
+    dbFilename: function f(){
+      if(!f._) f._ = sqlite3.wasm.xWrap('fiddle_db_filename', "string", ['string']);
+      return f._(0);
+    },
+    dbHandle: function f(){
+      if(!f._) f._ = sqlite3.wasm.xWrap("fiddle_db_handle", "sqlite3*");
+      return f._();
+    },
+    dbIsOpfs: function f(){
+      return sqlite3.opfs && sqlite3.capi.sqlite3_js_db_uses_vfs(
+        this.dbHandle(), "opfs"
+      );
+    },
+    runMain: function f(){
+      if(f.argv) return 0===f.argv.rc;
+      const dbName = "/fiddle.sqlite3";
+      f.argv = [
+        'sqlite3-fiddle.wasm',
+        '-bail', '-safe',
+        dbName
+        /* Reminder: because of how we run fiddle, we have to ensure
+           that any argv strings passed to its main() are valid until
+           the wasm environment shuts down. */
+      ];
+      const capi = sqlite3.capi, wasm = sqlite3.wasm;
+      /* We need to call sqlite3_shutdown() in order to avoid numerous
+         legitimate warnings from the shell about it being initialized
+         after sqlite3_initialize() has been called. This means,
+         however, that any initialization done by the JS code may need
+         to be re-done (e.g.  re-registration of dynamically-loaded
+         VFSes). We need a more generic approach to running such
+         init-level code. */
+      capi.sqlite3_shutdown();
+      f.argv.pArgv = wasm.allocMainArgv(f.argv);
+      f.argv.rc = wasm.exports.fiddle_main(
+        f.argv.length, f.argv.pArgv
+      );
+      if(f.argv.rc){
+        stderr("Fatal error initializing sqlite3 shell.");
+        fiddleModule.isDead = true;
+        return false;
+      }
+      stdout("SQLite version", capi.sqlite3_libversion(),
+             capi.sqlite3_sourceid().substr(0,19));
+      stdout('Welcome to the "fiddle" shell.');
+      if(capi.sqlite3_vfs_find("opfs")){
+        stdout("\nOPFS is available. To open a persistent db, use:\n\n",
+               "  .open file:name?vfs=opfs\n\nbut note that some",
+               "features (e.g. upload) do not yet work with OPFS.");
+      }
+      stdout('\nEnter ".help" for usage hints.');
+      this.exec([ // initialization commands...
+        '.nullvalue NULL',
+        '.headers on'
+      ].join('\n'));
+      return true;
+    },
+    /**
+       Runs the given text through the shell as if it had been typed
+       in by a user. Fires a working/start event before it starts and
+       working/end event when it finishes.
+    */
+    exec: function f(sql){
+      if(!f._){
+        if(!this.runMain()) return;
+        f._ = sqlite3.wasm.xWrap('fiddle_exec', null, ['string']);
+      }
+      if(fiddleModule.isDead){
+        stderr("shell module has exit()ed. Cannot run SQL.");
+        return;
+      }
+      wMsg('working','start');
+      try {
+        if(f._running){
+          stderr('Cannot run multiple commands concurrently.');
+        }else if(sql){
+          if(Array.isArray(sql)) sql = sql.join('');
+          f._running = true;
+          f._(sql);
+        }
+      }finally{
+        delete f._running;
+        wMsg('working','end');
+      }
+    },
+    resetDb: function f(){
+      if(!f._) f._ = sqlite3.wasm.xWrap('fiddle_reset_db', null);
+      stdout("Resetting database.");
+      f._();
+      stdout("Reset",this.dbFilename());
+    },
+    /* Interrupt can't work: this Worker is tied up working, so won't get the
+       interrupt event which would be needed to perform the interrupt. */
+    interrupt: function f(){
+      if(!f._) f._ = sqlite3.wasm.xWrap('fiddle_interrupt', null);
+      stdout("Requesting interrupt.");
+      f._();
+    }
+  };
+
+  self.onmessage = function f(ev){
+    ev = ev.data;
+    if(!f.cache){
+      f.cache = {
+        prevFilename: null
+      };
+    }
+    //console.debug("worker: onmessage.data",ev);
+    switch(ev.type){
+        case 'shellExec': Sqlite3Shell.exec(ev.data); return;
+        case 'db-reset': Sqlite3Shell.resetDb(); return;
+        case 'interrupt': Sqlite3Shell.interrupt(); return;
+          /** Triggers the export of the current db. Fires an
+              event in the form:
+
+              {type:'db-export',
+                data:{
+                  filename: name of db,
+                  buffer: contents of the db file (Uint8Array),
+                  error: on error, a message string and no buffer property.
+                }
+              }
+          */
+        case 'db-export': {
+          const fn = Sqlite3Shell.dbFilename();
+          stdout("Exporting",fn+".");
+          const fn2 = fn ? fn.split(/[/\\]/).pop() : null;
+          try{
+            if(!fn2) toss("DB appears to be closed.");
+            const buffer = sqlite3.capi.sqlite3_js_db_export(
+              Sqlite3Shell.dbHandle()
+            );
+            wMsg('db-export',{filename: fn2, buffer: buffer.buffer}, [buffer.buffer]);
+          }catch(e){
+            console.error("Export failed:",e);
+            /* Post a failure message so that UI elements disabled
+               during the export can be re-enabled. */
+            wMsg('db-export',{
+              filename: fn,
+              error: e.message
+            });
+          }
+          return;
+        }
+        case 'open': {
+          /* Expects: {
+               buffer: ArrayBuffer | Uint8Array,
+               filename: the filename for the db. Any dir part is
+                         stripped.
+              }
+          */
+          const opt = ev.data;
+          let buffer = opt.buffer;
+          stderr('open():',fixmeOPFS);
+          if(buffer instanceof ArrayBuffer){
+            buffer = new Uint8Array(buffer);
+          }else if(!(buffer instanceof Uint8Array)){
+            stderr("'open' expects {buffer:Uint8Array} containing an uploaded db.");
+            return;
+          }
+          const fn = (
+            opt.filename
+              ? opt.filename.split(/[/\\]/).pop().replace('"','_')
+              : ("db-"+((Math.random() * 10000000) | 0)+
+                 "-"+((Math.random() * 10000000) | 0)+".sqlite3")
+          );
+          try {
+            /* We cannot delete the existing db file until the new one
+               is installed, which means that we risk overflowing our
+               quota (if any) by having both the previous and current
+               db briefly installed in the virtual filesystem. */
+            const fnAbs = '/'+fn;
+            const oldName = Sqlite3Shell.dbFilename();
+            if(oldName && oldName===fnAbs){
+              /* We cannot create the replacement file while the current file
+                 is opened, nor does the shell have a .close command, so we
+                 must temporarily switch to another db... */
+              Sqlite3Shell.exec('.open :memory:');
+              fiddleModule.FS.unlink(fnAbs);
+            }
+            fiddleModule.FS.createDataFile("/", fn, buffer, true, true);
+            Sqlite3Shell.exec('.open "'+fnAbs+'"');
+            if(oldName && oldName!==fnAbs){
+              try{fiddleModule.fsUnlink(oldName)}
+              catch(e){/*ignored*/}
+            }
+            stdout("Replaced DB with",fn+".");
+          }catch(e){
+            stderr("Error installing db",fn+":",e.message);
+          }
+          return;
+        }
+    };
+    console.warn("Unknown fiddle-worker message type:",ev);
+  };
+
+  /**
+     emscripten module for use with build mode -sMODULARIZE.
+  */
+  const fiddleModule = {
+    print: stdout,
+    printErr: stderr,
+    /**
+       Intercepts status updates from the emscripting module init
+       and fires worker events with a type of 'status' and a
+       payload of:
+
+       {
+       text: string | null, // null at end of load process
+       step: integer // starts at 1, increments 1 per call
+       }
+
+       We have no way of knowing in advance how many steps will
+       be processed/posted, so creating a "percentage done" view is
+       not really practical. One can be approximated by giving it a
+       current value of message.step and max value of message.step+1,
+       though.
+
+       When work is finished, a message with a text value of null is
+       submitted.
+
+       After a message with text==null is posted, the module may later
+       post messages about fatal problems, e.g. an exit() being
+       triggered, so it is recommended that UI elements for posting
+       status messages not be outright removed from the DOM when
+       text==null, and that they instead be hidden until/unless
+       text!=null.
+    */
+    setStatus: function f(text){
+      if(!f.last) f.last = { step: 0, text: '' };
+      else if(text === f.last.text) return;
+      f.last.text = text;
+      wMsg('module',{
+        type:'status',
+        data:{step: ++f.last.step, text: text||null}
+      });
+    }
+  };
+
+  importScripts('fiddle-module.js'+self.location.search);
+  /**
+     initFiddleModule() is installed via fiddle-module.js due to
+     building with:
+
+     emcc ... -sMODULARIZE=1 -sEXPORT_NAME=initFiddleModule
+  */
+  sqlite3InitModule(fiddleModule).then((_sqlite3)=>{
+    sqlite3 = _sqlite3;
+    console.warn("Installing sqlite3 module globally (in Worker)",
+                 "for use in the dev console.", sqlite3);
+    globalThis.sqlite3 = sqlite3;
+    const dbVfs = sqlite3.wasm.xWrap('fiddle_db_vfs', "*", ['string']);
+    fiddleModule.fsUnlink = (fn)=>fiddleModule.FS.unlink(fn);
+    wMsg('fiddle-ready');
+  }).catch(e=>{
+    console.error("Fiddle worker init failed:",e);
+  });
+})();
diff --git a/ext/wasm/fiddle/fiddle.js b/ext/wasm/fiddle/fiddle.js
new file mode 100644
index 0000000000000000000000000000000000000000..d28589835c47add7d2263bebaee0200b7657c1ab
--- /dev/null
+++ b/ext/wasm/fiddle/fiddle.js
@@ -0,0 +1,822 @@
+/*
+  2022-05-20
+
+  The author disclaims copyright to this source code.  In place of a
+  legal notice, here is a blessing:
+
+  *   May you do good and not evil.
+  *   May you find forgiveness for yourself and forgive others.
+  *   May you share freely, never taking more than you give.
+
+  ***********************************************************************
+
+  This is the main entry point for the sqlite3 fiddle app. It sets up the
+  various UI bits, loads a Worker for the db connection, and manages the
+  communication between the UI and worker.
+*/
+(function(){
+  'use strict';
+  /* Recall that the 'self' symbol, except where locally
+     overwritten, refers to the global window or worker object. */
+
+  const storage = (function(NS/*namespace object in which to store this module*/){
+    /* Pedantic licensing note: this code originated in the Fossil SCM
+       source tree, where it has a different license, but the person who
+       ported it into sqlite is the same one who wrote it for fossil. */
+    'use strict';
+    NS = NS||{};
+
+    /**
+       This module provides a basic wrapper around localStorage
+       or sessionStorage or a dummy proxy object if neither
+       of those are available.
+    */
+    const tryStorage = function f(obj){
+      if(!f.key) f.key = 'storage.access.check';
+      try{
+        obj.setItem(f.key, 'f');
+        const x = obj.getItem(f.key);
+        obj.removeItem(f.key);
+        if(x!=='f') throw new Error(f.key+" failed")
+        return obj;
+      }catch(e){
+        return undefined;
+      }
+    };
+
+    /** Internal storage impl for this module. */
+    const $storage =
+          tryStorage(window.localStorage)
+          || tryStorage(window.sessionStorage)
+          || tryStorage({
+            // A basic dummy xyzStorage stand-in
+            $$$:{},
+            setItem: function(k,v){this.$$$[k]=v},
+            getItem: function(k){
+              return this.$$$.hasOwnProperty(k) ? this.$$$[k] : undefined;
+            },
+            removeItem: function(k){delete this.$$$[k]},
+            clear: function(){this.$$$={}}
+          });
+
+    /**
+       For the dummy storage we need to differentiate between
+       $storage and its real property storage for hasOwnProperty()
+       to work properly...
+    */
+    const $storageHolder = $storage.hasOwnProperty('$$$') ? $storage.$$$ : $storage;
+
+    /**
+       A prefix which gets internally applied to all storage module
+       property keys so that localStorage and sessionStorage across the
+       same browser profile instance do not "leak" across multiple apps
+       being hosted by the same origin server. Such cross-polination is
+       still there but, with this key prefix applied, it won't be
+       immediately visible via the storage API.
+
+       With this in place we can justify using localStorage instead of
+       sessionStorage.
+
+       One implication of using localStorage and sessionStorage is that
+       their scope (the same "origin" and client application/profile)
+       allows multiple apps on the same origin to use the same
+       storage. Thus /appA/foo could then see changes made via
+       /appB/foo. The data do not cross user- or browser boundaries,
+       though, so it "might" arguably be called a
+       feature. storageKeyPrefix was added so that we can sandbox that
+       state for each separate app which shares an origin.
+
+       See: https://fossil-scm.org/forum/forumpost/4afc4d34de
+
+       Sidebar: it might seem odd to provide a key prefix and stick all
+       properties in the topmost level of the storage object. We do that
+       because adding a layer of object to sandbox each app would mean
+       (de)serializing that whole tree on every storage property change.
+       e.g. instead of storageObject.projectName.foo we have
+       storageObject[storageKeyPrefix+'foo']. That's soley for
+       efficiency's sake (in terms of battery life and
+       environment-internal storage-level effort).
+    */
+    const storageKeyPrefix = (
+      $storageHolder===$storage/*localStorage or sessionStorage*/
+        ? (
+          (NS.config ?
+           (NS.config.projectCode || NS.config.projectName
+            || NS.config.shortProjectName)
+           : false)
+            || window.location.pathname
+        )+'::' : (
+          '' /* transient storage */
+        )
+    );
+
+    /**
+       A proxy for localStorage or sessionStorage or a
+       page-instance-local proxy, if neither one is availble.
+
+       Which exact storage implementation is uses is unspecified, and
+       apps must not rely on it.
+    */
+    NS.storage = {
+      storageKeyPrefix: storageKeyPrefix,
+      /** Sets the storage key k to value v, implicitly converting
+          it to a string. */
+      set: (k,v)=>$storage.setItem(storageKeyPrefix+k,v),
+      /** Sets storage key k to JSON.stringify(v). */
+      setJSON: (k,v)=>$storage.setItem(storageKeyPrefix+k,JSON.stringify(v)),
+      /** Returns the value for the given storage key, or
+          dflt if the key is not found in the storage. */
+      get: (k,dflt)=>$storageHolder.hasOwnProperty(
+        storageKeyPrefix+k
+      ) ? $storage.getItem(storageKeyPrefix+k) : dflt,
+      /** Returns true if the given key has a value of "true".  If the
+          key is not found, it returns true if the boolean value of dflt
+          is "true". (Remember that JS persistent storage values are all
+          strings.) */
+      getBool: function(k,dflt){
+        return 'true'===this.get(k,''+(!!dflt));
+      },
+      /** Returns the JSON.parse()'d value of the given
+          storage key's value, or dflt is the key is not
+          found or JSON.parse() fails. */
+      getJSON: function f(k,dflt){
+        try {
+          const x = this.get(k,f);
+          return x===f ? dflt : JSON.parse(x);
+        }
+        catch(e){return dflt}
+      },
+      /** Returns true if the storage contains the given key,
+          else false. */
+      contains: (k)=>$storageHolder.hasOwnProperty(storageKeyPrefix+k),
+      /** Removes the given key from the storage. Returns this. */
+      remove: function(k){
+        $storage.removeItem(storageKeyPrefix+k);
+        return this;
+      },
+      /** Clears ALL keys from the storage. Returns this. */
+      clear: function(){
+        this.keys().forEach((k)=>$storage.removeItem(/*w/o prefix*/k));
+        return this;
+      },
+      /** Returns an array of all keys currently in the storage. */
+      keys: ()=>Object.keys($storageHolder).filter((v)=>(v||'').startsWith(storageKeyPrefix)),
+      /** Returns true if this storage is transient (only available
+          until the page is reloaded), indicating that fileStorage
+          and sessionStorage are unavailable. */
+      isTransient: ()=>$storageHolder!==$storage,
+      /** Returns a symbolic name for the current storage mechanism. */
+      storageImplName: function(){
+        if($storage===window.localStorage) return 'localStorage';
+        else if($storage===window.sessionStorage) return 'sessionStorage';
+        else return 'transient';
+      },
+
+      /**
+         Returns a brief help text string for the currently-selected
+         storage type.
+      */
+      storageHelpDescription: function(){
+        return {
+          localStorage: "Browser-local persistent storage with an "+
+            "unspecified long-term lifetime (survives closing the browser, "+
+            "but maybe not a browser upgrade).",
+          sessionStorage: "Storage local to this browser tab, "+
+            "lost if this tab is closed.",
+          "transient": "Transient storage local to this invocation of this page."
+        }[this.storageImplName()];
+      }
+    };
+    return NS.storage;
+  })({})/*storage API setup*/;
+
+
+  /** Name of the stored copy of SqliteFiddle.config. */
+  const configStorageKey = 'sqlite3-fiddle-config';
+
+  /**
+     The SqliteFiddle object is intended to be the primary
+     app-level object for the main-thread side of the sqlite
+     fiddle application. It uses a worker thread to load the
+     sqlite WASM module and communicate with it.
+  */
+  const SF/*local convenience alias*/
+        = window.SqliteFiddle/*canonical name*/ = {
+          /* Config options. */
+          config: {
+            /* If true, SqliteFiddle.echo() will auto-scroll the
+               output widget to the bottom when it receives output,
+               else it won't. */
+            autoScrollOutput: true,
+            /* If true, the output area will be cleared before each
+               command is run, else it will not. */
+            autoClearOutput: false,
+            /* If true, SqliteFiddle.echo() will echo its output to
+               the console, in addition to its normal output widget.
+               That slows it down but is useful for testing. */
+            echoToConsole: false,
+            /* If true, display input/output areas side-by-side. */
+            sideBySide: true,
+            /* If true, swap positions of the input/output areas. */
+            swapInOut: false
+          },
+          /**
+             Emits the given text, followed by a line break, to the
+             output widget.  If given more than one argument, they are
+             join()'d together with a space between each. As a special
+             case, if passed a single array, that array is used in place
+             of the arguments array (this is to facilitate receiving
+             lists of arguments via worker events).
+          */
+          echo: function f(text) {
+            /* Maintenance reminder: we currently require/expect a textarea
+               output element. It might be nice to extend this to behave
+               differently if the output element is a non-textarea element,
+               in which case it would need to append the given text as a TEXT
+               node and add a line break. */
+            if(!f._){
+              f._ = document.getElementById('output');
+              f._.value = ''; // clear browser cache
+            }
+            if(arguments.length > 1) text = Array.prototype.slice.call(arguments).join(' ');
+            else if(1===arguments.length && Array.isArray(text)) text = text.join(' ');
+            // These replacements are necessary if you render to raw HTML
+            //text = text.replace(/&/g, "&amp;");
+            //text = text.replace(/</g, "&lt;");
+            //text = text.replace(/>/g, "&gt;");
+            //text = text.replace('\n', '<br>', 'g');
+            if(null===text){/*special case: clear output*/
+              f._.value = '';
+              return;
+            }else if(this.echo._clearPending){
+              delete this.echo._clearPending;
+              f._.value = '';
+            }
+            if(this.config.echoToConsole) console.log(text);
+            if(this.jqTerm) this.jqTerm.echo(text);
+            f._.value += text + "\n";
+            if(this.config.autoScrollOutput){
+              f._.scrollTop = f._.scrollHeight;
+            }
+          },
+          _msgMap: {},
+          /** Adds a worker message handler for messages of the given
+              type. */
+          addMsgHandler: function f(type,callback){
+            if(Array.isArray(type)){
+              type.forEach((t)=>this.addMsgHandler(t, callback));
+              return this;
+            }
+            (this._msgMap.hasOwnProperty(type)
+             ? this._msgMap[type]
+             : (this._msgMap[type] = [])).push(callback);
+            return this;
+          },
+          /** Given a worker message, runs all handlers for msg.type. */
+          runMsgHandlers: function(msg){
+            const list = (this._msgMap.hasOwnProperty(msg.type)
+                          ? this._msgMap[msg.type] : false);
+            if(!list){
+              console.warn("No handlers found for message type:",msg);
+              return false;
+            }
+            //console.debug("runMsgHandlers",msg);
+            list.forEach((f)=>f(msg));
+            return true;
+          },
+          /** Removes all message handlers for the given message type. */
+          clearMsgHandlers: function(type){
+            delete this._msgMap[type];
+            return this;
+          },
+          /* Posts a message in the form {type, data} to the db worker. Returns this. */
+          wMsg: function(type,data,transferables){
+            this.worker.postMessage({type, data}, transferables || []);
+            return this;
+          },
+          /**
+             Prompts for confirmation and, if accepted, deletes
+             all content and tables in the (transient) database.
+          */
+          resetDb: function(){
+            if(window.confirm("Really destroy all content and tables "
+                              +"in the (transient) db?")){
+              this.wMsg('db-reset');
+            }
+            return this;
+          },
+          /** Stores this object's config in the browser's storage. */
+          storeConfig: function(){
+            storage.setJSON(configStorageKey,this.config);
+          }
+        };
+
+  if(1){ /* Restore SF.config */
+    const storedConfig = storage.getJSON(configStorageKey);
+    if(storedConfig){
+      /* Copy all properties to SF.config which are currently in
+         storedConfig. We don't bother copying any other
+         properties: those have been removed from the app in the
+         meantime. */
+      Object.keys(SF.config).forEach(function(k){
+        if(storedConfig.hasOwnProperty(k)){
+          SF.config[k] = storedConfig[k];
+        }
+      });
+    }
+  }
+
+  SF.worker = new Worker('fiddle-worker.js'+self.location.search);
+  SF.worker.onmessage = (ev)=>SF.runMsgHandlers(ev.data);
+  SF.addMsgHandler(['stdout', 'stderr'], (ev)=>SF.echo(ev.data));
+
+  /* querySelectorAll() proxy */
+  const EAll = function(/*[element=document,] cssSelector*/){
+    return (arguments.length>1 ? arguments[0] : document)
+      .querySelectorAll(arguments[arguments.length-1]);
+  };
+  /* querySelector() proxy */
+  const E = function(/*[element=document,] cssSelector*/){
+    return (arguments.length>1 ? arguments[0] : document)
+      .querySelector(arguments[arguments.length-1]);
+  };
+
+  /** Handles status updates from the Emscripten Module object. */
+  SF.addMsgHandler('module', function f(ev){
+    ev = ev.data;
+    if('status'!==ev.type){
+      console.warn("Unexpected module-type message:",ev);
+      return;
+    }
+    if(!f.ui){
+      f.ui = {
+        status: E('#module-status'),
+        progress: E('#module-progress'),
+        spinner: E('#module-spinner')
+      };
+    }
+    const msg = ev.data;
+    if(f.ui.progres){
+      progress.value = msg.step;
+      progress.max = msg.step + 1/*we don't know how many steps to expect*/;
+    }
+    if(1==msg.step){
+      f.ui.progress.classList.remove('hidden');
+      f.ui.spinner.classList.remove('hidden');
+    }
+    if(msg.text){
+      f.ui.status.classList.remove('hidden');
+      f.ui.status.innerText = msg.text;
+    }else{
+      if(f.ui.progress){
+        f.ui.progress.remove();
+        f.ui.spinner.remove();
+        delete f.ui.progress;
+        delete f.ui.spinner;
+      }
+      f.ui.status.classList.add('hidden');
+      /* The module can post messages about fatal problems,
+         e.g. an exit() being triggered or assertion failure,
+         after the last "load" message has arrived, so
+         leave f.ui.status and message listener intact. */
+    }
+  });
+
+  /**
+     The 'fiddle-ready' event is fired (with no payload) when the
+     wasm module has finished loading. Interestingly, that happens
+     _before_ the final module:status event */
+  SF.addMsgHandler('fiddle-ready', function(){
+    SF.clearMsgHandlers('fiddle-ready');
+    self.onSFLoaded();
+  });
+
+  /**
+     Performs all app initialization which must wait until after the
+     worker module is loaded. This function removes itself when it's
+     called.
+  */
+  self.onSFLoaded = function(){
+    delete this.onSFLoaded;
+    // Unhide all elements which start out hidden
+    EAll('.initially-hidden').forEach((e)=>e.classList.remove('initially-hidden'));
+    E('#btn-reset').addEventListener('click',()=>SF.resetDb());
+    const taInput = E('#input');
+    const btnClearIn = E('#btn-clear');
+    const selectExamples = E('#select-examples');
+    btnClearIn.addEventListener('click',function(){
+      taInput.value = '';
+      selectExamples.selectedIndex = 0;
+    },false);
+    // Ctrl-enter and shift-enter both run the current SQL.
+    taInput.addEventListener('keydown',function(ev){
+      if((ev.ctrlKey || ev.shiftKey) && 13 === ev.keyCode){
+        ev.preventDefault();
+        ev.stopPropagation();
+        btnShellExec.click();
+      }
+    }, false);
+    const taOutput = E('#output');
+    const btnClearOut = E('#btn-clear-output');
+    btnClearOut.addEventListener('click',function(){
+      taOutput.value = '';
+      if(SF.jqTerm) SF.jqTerm.clear();
+    },false);
+    const btnShellExec = E('#btn-shell-exec');
+    btnShellExec.addEventListener('click',function(ev){
+      let sql;
+      ev.preventDefault();
+      if(taInput.selectionStart<taInput.selectionEnd){
+        sql = taInput.value.substring(taInput.selectionStart,taInput.selectionEnd).trim();
+      }else{
+        sql = taInput.value.trim();
+      }
+      if(sql) SF.dbExec(sql);
+    },false);
+
+    const btnInterrupt = E("#btn-interrupt");
+    //btnInterrupt.classList.add('hidden');
+    /** To be called immediately before work is sent to the
+        worker. Updates some UI elements. The 'working'/'end'
+        event will apply the inverse, undoing the bits this
+        function does. This impl is not in the 'working'/'start'
+        event handler because that event is given to us
+        asynchronously _after_ we need to have performed this
+        work.
+    */
+    const preStartWork = function f(){
+      if(!f._){
+        const title = E('title');
+        f._ = {
+          btnLabel: btnShellExec.innerText,
+          pageTitle: title,
+          pageTitleOrig: title.innerText
+        };
+      }
+      f._.pageTitle.innerText = "[working...] "+f._.pageTitleOrig;
+      btnShellExec.setAttribute('disabled','disabled');
+      btnInterrupt.removeAttribute('disabled','disabled');
+    };
+
+    /* Sends the given text to the db module to evaluate as if it
+       had been entered in the sqlite3 CLI shell. If it's null or
+       empty, this is a no-op. */
+    SF.dbExec = function f(sql){
+      if(null!==sql && this.config.autoClearOutput){
+        this.echo._clearPending = true;
+      }
+      preStartWork();
+      this.wMsg('shellExec',sql);
+    };
+
+    SF.addMsgHandler('working',function f(ev){
+      switch(ev.data){
+          case 'start': /* See notes in preStartWork(). */; return;
+          case 'end':
+            preStartWork._.pageTitle.innerText = preStartWork._.pageTitleOrig;
+            btnShellExec.innerText = preStartWork._.btnLabel;
+            btnShellExec.removeAttribute('disabled');
+            btnInterrupt.setAttribute('disabled','disabled');
+            return;
+      }
+      console.warn("Unhandled 'working' event:",ev.data);
+    });
+
+    /* For each checkbox with data-csstgt, set up a handler which
+       toggles the given CSS class on the element matching
+       E(data-csstgt). */
+    EAll('input[type=checkbox][data-csstgt]')
+      .forEach(function(e){
+        const tgt = E(e.dataset.csstgt);
+        const cssClass = e.dataset.cssclass || 'error';
+        e.checked = tgt.classList.contains(cssClass);
+        e.addEventListener('change', function(){
+          tgt.classList[
+            this.checked ? 'add' : 'remove'
+          ](cssClass)
+        }, false);
+      });
+    /* For each checkbox with data-config=X, set up a binding to
+       SF.config[X]. These must be set up AFTER data-csstgt
+       checkboxes so that those two states can be synced properly. */
+    EAll('input[type=checkbox][data-config]')
+      .forEach(function(e){
+        const confVal = !!SF.config[e.dataset.config];
+        if(e.checked !== confVal){
+          /* Ensure that data-csstgt mappings (if any) get
+             synced properly. */
+          e.checked = confVal;
+          e.dispatchEvent(new Event('change'));
+        }
+        e.addEventListener('change', function(){
+          SF.config[this.dataset.config] = this.checked;
+          SF.storeConfig();
+        }, false);
+      });
+    /* For each button with data-cmd=X, map a click handler which
+       calls SF.dbExec(X). */
+    const cmdClick = function(){SF.dbExec(this.dataset.cmd);};
+    EAll('button[data-cmd]').forEach(
+      e => e.addEventListener('click', cmdClick, false)
+    );
+
+    btnInterrupt.addEventListener('click',function(){
+      SF.wMsg('interrupt');
+    });
+
+    /** Initiate a download of the db. */
+    const btnExport = E('#btn-export');
+    const eLoadDb = E('#load-db');
+    const btnLoadDb = E('#btn-load-db');
+    btnLoadDb.addEventListener('click', ()=>eLoadDb.click());
+    /**
+       Enables (if passed true) or disables all UI elements which
+       "might," if timed "just right," interfere with an
+       in-progress db import/export/exec operation.
+    */
+    const enableMutatingElements = function f(enable){
+      if(!f._elems){
+        f._elems = [
+          /* UI elements to disable while import/export are
+             running. Normally the export is fast enough
+             that this won't matter, but we really don't
+             want to be reading (from outside of sqlite) the
+             db when the user taps btnShellExec. */
+          btnShellExec, btnExport, eLoadDb
+        ];
+      }
+      f._elems.forEach( enable
+                        ? (e)=>e.removeAttribute('disabled')
+                        : (e)=>e.setAttribute('disabled','disabled') );
+    };
+    btnExport.addEventListener('click',function(){
+      enableMutatingElements(false);
+      SF.wMsg('db-export');
+    });
+    SF.addMsgHandler('db-export', function(ev){
+      enableMutatingElements(true);
+      ev = ev.data;
+      if(ev.error){
+        SF.echo("Export failed:",ev.error);
+        return;
+      }
+      const blob = new Blob([ev.buffer],
+                            {type:"application/x-sqlite3"});
+      const a = document.createElement('a');
+      document.body.appendChild(a);
+      a.href = window.URL.createObjectURL(blob);
+      a.download = ev.filename;
+      a.addEventListener('click',function(){
+        setTimeout(function(){
+          SF.echo("Exported (possibly auto-downloaded):",ev.filename);
+          window.URL.revokeObjectURL(a.href);
+          a.remove();
+        },500);
+      });
+      a.click();
+    });
+    /**
+       Handle load/import of an external db file.
+    */
+    eLoadDb.addEventListener('change',function(){
+      const f = this.files[0];
+      const r = new FileReader();
+      const status = {loaded: 0, total: 0};
+      enableMutatingElements(false);
+      r.addEventListener('loadstart', function(){
+        SF.echo("Loading",f.name,"...");
+      });
+      r.addEventListener('progress', function(ev){
+        SF.echo("Loading progress:",ev.loaded,"of",ev.total,"bytes.");
+      });
+      const that = this;
+      r.addEventListener('load', function(){
+        enableMutatingElements(true);
+        SF.echo("Loaded",f.name+". Opening db...");
+        SF.wMsg('open',{
+          filename: f.name,
+          buffer: this.result
+        }, [this.result]);
+      });
+      r.addEventListener('error',function(){
+        enableMutatingElements(true);
+        SF.echo("Loading",f.name,"failed for unknown reasons.");
+      });
+      r.addEventListener('abort',function(){
+        enableMutatingElements(true);
+        SF.echo("Cancelled loading of",f.name+".");
+      });
+      r.readAsArrayBuffer(f);
+    });
+
+    EAll('fieldset.collapsible').forEach(function(fs){
+      const btnToggle = E(fs,'legend > .fieldset-toggle'),
+            content = EAll(fs,':scope > div');
+      btnToggle.addEventListener('click', function(){
+        fs.classList.toggle('collapsed');
+        content.forEach((d)=>d.classList.toggle('hidden'));
+      }, false);
+    });
+
+    /**
+       Given a DOM element, this routine measures its "effective
+       height", which is the bounding top/bottom range of this element
+       and all of its children, recursively. For some DOM structure
+       cases, a parent may have a reported height of 0 even though
+       children have non-0 sizes.
+
+       Returns 0 if !e or if the element really has no height.
+    */
+    const effectiveHeight = function f(e){
+      if(!e) return 0;
+      if(!f.measure){
+        f.measure = function callee(e, depth){
+          if(!e) return;
+          const m = e.getBoundingClientRect();
+          if(0===depth){
+            callee.top = m.top;
+            callee.bottom = m.bottom;
+          }else{
+            callee.top = m.top ? Math.min(callee.top, m.top) : callee.top;
+            callee.bottom = Math.max(callee.bottom, m.bottom);
+          }
+          Array.prototype.forEach.call(e.children,(e)=>callee(e,depth+1));
+          if(0===depth){
+            //console.debug("measure() height:",e.className, callee.top, callee.bottom, (callee.bottom - callee.top));
+            f.extra += callee.bottom - callee.top;
+          }
+          return f.extra;
+        };
+      }
+      f.extra = 0;
+      f.measure(e,0);
+      return f.extra;
+    };
+
+    /**
+       Returns a function, that, as long as it continues to be invoked,
+       will not be triggered. The function will be called after it stops
+       being called for N milliseconds. If `immediate` is passed, call
+       the callback immediately and hinder future invocations until at
+       least the given time has passed.
+
+       If passed only 1 argument, or passed a falsy 2nd argument,
+       the default wait time set in this function's $defaultDelay
+       property is used.
+
+       Source: underscore.js, by way of https://davidwalsh.name/javascript-debounce-function
+    */
+    const debounce = function f(func, wait, immediate) {
+      var timeout;
+      if(!wait) wait = f.$defaultDelay;
+      return function() {
+        const context = this, args = Array.prototype.slice.call(arguments);
+        const later = function() {
+          timeout = undefined;
+          if(!immediate) func.apply(context, args);
+        };
+        const callNow = immediate && !timeout;
+        clearTimeout(timeout);
+        timeout = setTimeout(later, wait);
+        if(callNow) func.apply(context, args);
+      };
+    };
+    debounce.$defaultDelay = 500 /*arbitrary*/;
+
+    const ForceResizeKludge = (function(){
+      /* Workaround for Safari mayhem regarding use of vh CSS
+         units....  We cannot use vh units to set the main view
+         size because Safari chokes on that, so we calculate
+         that height here. Larger than ~95% is too big for
+         Firefox on Android, causing the input area to move
+         off-screen. */
+      const appViews = EAll('.app-view');
+      const elemsToCount = [
+        /* Elements which we need to always count in the
+           visible body size. */
+        E('body > header'),
+        E('body > footer')
+      ];
+      const resized = function f(){
+        if(f.$disabled) return;
+        const wh = window.innerHeight;
+        var ht;
+        var extra = 0;
+        elemsToCount.forEach((e)=>e ? extra += effectiveHeight(e) : false);
+        ht = wh - extra;
+        appViews.forEach(function(e){
+          e.style.height =
+            e.style.maxHeight = [
+              "calc(", (ht>=100 ? ht : 100), "px",
+              " - 2em"/*fudge value*/,")"
+              /* ^^^^ hypothetically not needed, but both
+                 Chrome/FF on Linux will force scrollbars on the
+                 body if this value is too small. */
+            ].join('');
+        });
+      };
+      resized.$disabled = true/*gets deleted when setup is finished*/;
+      window.addEventListener('resize', debounce(resized, 250), false);
+      return resized;
+    })();
+
+    /** Set up a selection list of examples */
+    (function(){
+      const xElem = E('#select-examples');
+      const examples = [
+        {name: "Help", sql: [
+          "-- ================================================\n",
+          "-- Use ctrl-enter or shift-enter to execute sqlite3\n",
+          "-- shell commands and SQL.\n",
+          "-- If a subset of the text is currently selected,\n",
+          "-- only that part is executed.\n",
+          "-- ================================================\n",
+          ".help\n"
+        ]},
+              //{name: "Timer on", sql: ".timer on"},
+              // ^^^ re-enable if emscripten re-enables getrusage()
+        {name: "Box Mode", sql: ".mode box"},
+        {name: "Setup table T", sql:[
+          ".nullvalue NULL\n",
+          "CREATE TABLE t(a,b);\n",
+          "INSERT INTO t(a,b) VALUES('abc',123),('def',456),(NULL,789),('ghi',012);\n",
+          "SELECT * FROM t;\n"
+        ]},
+        {name: "sqlite_schema", sql: "select * from sqlite_schema"},
+        {name: "Mandelbrot", sql:[
+          "WITH RECURSIVE",
+          "  xaxis(x) AS (VALUES(-2.0) UNION ALL SELECT x+0.05 FROM xaxis WHERE x<1.2),\n",
+          "  yaxis(y) AS (VALUES(-1.0) UNION ALL SELECT y+0.1 FROM yaxis WHERE y<1.0),\n",
+          "  m(iter, cx, cy, x, y) AS (\n",
+          "    SELECT 0, x, y, 0.0, 0.0 FROM xaxis, yaxis\n",
+          "    UNION ALL\n",
+          "    SELECT iter+1, cx, cy, x*x-y*y + cx, 2.0*x*y + cy FROM m \n",
+          "     WHERE (x*x + y*y) < 4.0 AND iter<28\n",
+          "  ),\n",
+          "  m2(iter, cx, cy) AS (\n",
+          "    SELECT max(iter), cx, cy FROM m GROUP BY cx, cy\n",
+          "  ),\n",
+          "  a(t) AS (\n",
+          "    SELECT group_concat( substr(' .+*#', 1+min(iter/7,4), 1), '') \n",
+          "    FROM m2 GROUP BY cy\n",
+          "  )\n",
+          "SELECT group_concat(rtrim(t),x'0a') as Mandelbrot FROM a;\n",
+        ]},
+        {name: "JSON pretty-print",
+         sql: "select json_pretty(json_object('ex',json('[52,3.14159]')))"
+        },
+        {name: "JSON pretty-print (with tabs)",
+         sql: "select json_pretty(json_object('ex',json('[52,3.14159]')),char(0x09))"
+        }
+      ];
+      const newOpt = function(lbl,val){
+        const o = document.createElement('option');
+        if(Array.isArray(val)) val = val.join('');
+        o.value = val;
+        if(!val) o.setAttribute('disabled',true);
+        o.appendChild(document.createTextNode(lbl));
+        xElem.appendChild(o);
+      };
+      newOpt("Examples (replaces input!)");
+      examples.forEach((o)=>newOpt(o.name, o.sql));
+      //xElem.setAttribute('disabled',true);
+      xElem.selectedIndex = 0;
+      xElem.addEventListener('change', function(){
+        taInput.value = '-- ' +
+          this.selectedOptions[0].innerText +
+          '\n' + this.value;
+        SF.dbExec(this.value);
+      });
+    })()/* example queries */;
+
+    //SF.echo(null/*clear any output generated by the init process*/);
+    if(window.jQuery && window.jQuery.terminal){
+      /* Set up the terminal-style view... */
+      const eTerm = window.jQuery('#view-terminal').empty();
+      SF.jqTerm = eTerm.terminal(SF.dbExec.bind(SF),{
+        prompt: 'sqlite> ',
+        greetings: false /* note that the docs incorrectly call this 'greeting' */
+      });
+      /* Set up a button to toggle the views... */
+      const head = E('header#titlebar');
+      const btnToggleView = document.createElement('button');
+      btnToggleView.appendChild(document.createTextNode("Toggle View"));
+      head.appendChild(btnToggleView);
+      btnToggleView.addEventListener('click',function f(){
+        EAll('.app-view').forEach(e=>e.classList.toggle('hidden'));
+        if(document.body.classList.toggle('terminal-mode')){
+          ForceResizeKludge();
+        }
+      }, false);
+      btnToggleView.click()/*default to terminal view*/;
+    }
+    SF.echo('This experimental app is provided in the hope that it',
+            'may prove interesting or useful but is not an officially',
+            'supported deliverable of the sqlite project. It is subject to',
+            'any number of changes or outright removal at any time.\n');
+    const urlParams = new URL(self.location.href).searchParams;
+    SF.dbExec(urlParams.get('sql') || null);
+    delete ForceResizeKludge.$disabled;
+    ForceResizeKludge();
+  }/*onSFLoaded()*/;
+})();
diff --git a/ext/wasm/fiddle/index.html b/ext/wasm/fiddle/index.html
new file mode 100644
index 0000000000000000000000000000000000000000..f779749319f7a788951030211c9799e1367bacf0
--- /dev/null
+++ b/ext/wasm/fiddle/index.html
@@ -0,0 +1,302 @@
+<!doctype html>
+<html lang="en-us">
+  <head>
+    <meta charset="utf-8">
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+    <title>SQLite3 Fiddle</title>
+    <link rel="shortcut icon" href="data:image/x-icon;," type="image/x-icon">
+    <!-- to add a togglable terminal-style view, uncomment the following
+         two lines and ensure that these files are on the web server. -->
+    <!--script src="jqterm/jqterm-bundle.min.js"></script>
+    <link rel="stylesheet" href="jqterm/jquery.terminal.min.css"/-->
+    <style>
+      /* The following styles are for app-level use. */
+      :root {
+          --sqlite-blue: #044a64;
+          --textarea-color1: #044a64;
+          --textarea-color2: white;
+      }
+      textarea {
+          font-family: monospace;
+          flex: 1 1 auto;
+          background-color: var(--textarea-color1);
+          color: var(--textarea-color2);
+      }
+      textarea#input {
+          color: var(--textarea-color1);
+          background-color: var(--textarea-color2);
+      }
+      header {
+          display: flex;
+          justify-content: space-between;
+          align-items: center;
+          background-color: var(--sqlite-blue);
+          color: white;
+          font-size: 120%;
+          font-weight: bold;
+          border-radius: 0.25em;
+          padding: 0.2em 0.5em;
+      }
+      header > .powered-by {
+          font-size: 80%;
+      }
+      header a, header a:visited, header a:hover {
+          color: inherit;
+      }
+      #main-wrapper {
+          display: flex;
+          flex-direction: column-reverse;
+          flex: 1 1 auto;
+          margin: 0.5em 0;
+          overflow: hidden;
+      }
+      #main-wrapper.side-by-side {
+          flex-direction: row;
+      }
+      #main-wrapper.side-by-side > fieldset {
+          margin-left: 0.25em;
+          margin-right: 0.25em;
+      }
+      #main-wrapper:not(.side-by-side) > fieldset {
+          margin-bottom: 0.25em;
+      }
+      #main-wrapper.swapio {
+          flex-direction: column;
+      }
+      #main-wrapper.side-by-side.swapio {
+          flex-direction: row-reverse;
+      }
+      .zone-wrapper{
+          display: flex;
+          margin: 0;
+          flex: 1 1 0%;
+          border-radius: 0.5em;
+          min-width: inherit/*important: resolves inability to scroll fieldset child element!*/;
+          padding: 0.35em 0 0 0;
+      }
+      .zone-wrapper textarea {
+          border-radius: 0.5em;
+          flex: 1 1 auto;
+          /*min/max width resolve an inexplicable margin on the RHS.  The -1em
+            is for the padding, else we overlap the parent boundaries.*/
+          /*min-width: calc(100% - 1em);
+          max-width: calc(100% - 1em);
+          padding: 0 0.5em;*/
+      }
+
+      .zone-wrapper.input { flex: 10 1 auto; }
+      .zone-wrapper.output { flex: 20 1 auto; }
+      .zone-wrapper > div {
+          display:flex;
+          flex: 1 1 0%;
+      }
+      .zone-wrapper.output {}
+      .button-bar {
+          display: flex;
+          flex-wrap: wrap;
+          align-items: center;
+          align-content: space-between;
+          justify-content: flex-start;
+      }
+      .button-bar > * {
+          margin: 0.05em 0.5em 0.05em 0;
+          flex: 0 1 auto;
+          align-self: auto;
+      }
+      label[for] {
+          cursor: pointer;
+      }
+      .error {
+          color: red;
+          background-color: yellow;
+      }
+      .hidden, .initially-hidden {
+          position: absolute !important;
+          opacity: 0 !important;
+          pointer-events: none !important;
+          display: none !important;
+      }
+      fieldset {
+          border-radius: 0.5em;
+          border: 1px inset;
+          padding: 0.25em;
+      }
+      fieldset.options {
+          font-size: 80%;
+          margin-top: 0.5em;
+      }
+      fieldset:not(.options) > legend {
+          font-size: 80%;
+      }
+      fieldset.options > div {
+          display: flex;
+          flex-wrap: wrap;
+      }
+      fieldset button {
+          font-size: inherit;
+      }
+      fieldset.collapsible > legend > .fieldset-toggle::after {
+          content: " [hide]";
+          position: relative;
+      }
+      fieldset.collapsible.collapsed > legend > .fieldset-toggle::after {
+          content: " [show]";
+          position: relative;
+      }
+      span.labeled-input {
+          padding: 0.25em;
+          margin: 0.05em 0.25em;
+          border-radius: 0.25em;
+          white-space: nowrap;
+          background: #0002;
+          display: flex;
+          align-items: center;
+      }
+      span.labeled-input > *:nth-child(2) {
+          margin-left: 0.3em;
+      }
+      .center { text-align: center; }
+      body.terminal-mode {
+          max-height: calc(100% - 2em);
+          display: flex;
+          flex-direction: column;
+          align-items: stretch;
+      }
+      #view-terminal {}
+      .app-view {
+          flex: 20 1 auto;
+      }
+      #view-split {
+          display: flex;
+          flex-direction: column-reverse;
+      }
+
+      /* emcscript-related styling, used during the module load/intialization processes... */
+      .emscripten { padding-right: 0; margin-left: auto; margin-right: auto; display: block; }
+      div.emscripten { text-align: center; }
+      div.emscripten_border { border: 1px solid black; }
+      #module-spinner { overflow: visible; }
+      #module-spinner > * {
+          margin-top: 1em;
+      }
+      .spinner {
+          height: 50px;
+          width: 50px;
+          margin: 0px auto;
+          animation: rotation 0.8s linear infinite;
+          border-left: 10px solid rgb(0,150,240);
+          border-right: 10px solid rgb(0,150,240);
+          border-bottom: 10px solid rgb(0,150,240);
+          border-top: 10px solid rgb(100,0,200);
+          border-radius: 100%;
+          background-color: rgb(200,100,250);
+      }
+      @keyframes rotation {
+          from {transform: rotate(0deg);}
+          to {transform: rotate(360deg);}
+      }
+    </style>
+  </head>
+  <body>
+    <header id='titlebar'>
+      <span>SQLite3 Fiddle</span>
+      <span class='powered-by'>Powered by
+        <a href='https://sqlite.org'>SQLite3</a></span>
+    </header>
+    <!-- emscripten bits -->
+    <figure id="module-spinner">
+      <div class="spinner"></div>
+      <div class='center'><strong>Initializing app...</strong></div>
+      <div class='center'>
+        On a slow internet connection this may take a moment.  If this
+        message displays for "a long time", intialization may have
+        failed and the JavaScript console may contain clues as to why.
+      </div>
+    </figure>
+    <div class="emscripten" id="module-status">Downloading...</div>
+    <div class="emscripten">
+      <progress value="0" max="100" id="module-progress" hidden='1'></progress>  
+    </div><!-- /emscripten bits -->
+
+    <div id='view-terminal' class='app-view hidden initially-hidden'>
+      This is a placeholder for a terminal-like view which is not in
+      the default build.
+    </div>
+
+    <div id='view-split' class='app-view initially-hidden'>
+      <fieldset class='options collapsible'>
+        <legend><button class='fieldset-toggle'>Options</button></legend>
+        <div class=''>
+          <span class='labeled-input'>
+            <input type='checkbox' id='opt-cb-sbs'
+                   data-csstgt='#main-wrapper'
+                   data-cssclass='side-by-side'
+                   data-config='sideBySide'>
+            <label for='opt-cb-sbs'>Side-by-side</label>
+          </span>
+          <span class='labeled-input'>
+            <input type='checkbox' id='opt-cb-swapio'
+                   data-csstgt='#main-wrapper'
+                   data-cssclass='swapio'
+                   data-config='swapInOut'>
+            <label for='opt-cb-swapio'>Swap in/out</label>
+          </span>
+          <span class='labeled-input'>
+            <input type='checkbox' id='opt-cb-autoscroll'
+                   data-config='autoScrollOutput'>
+            <label for='opt-cb-autoscroll'>Auto-scroll output</label>
+          </span>
+          <span class='labeled-input'>
+            <input type='checkbox' id='opt-cb-autoclear'
+                   data-config='autoClearOutput'>
+            <label for='opt-cb-autoclear'>Auto-clear output</label>
+          </span>
+          <span class='labeled-input'>
+            <input type='file' id='load-db' class='hidden'/>
+            <button id='btn-load-db'>Load DB...</button>
+          </span>
+          <span class='labeled-input'>
+            <button id='btn-export'>Download DB</button>
+          </span>
+          <span class='labeled-input'>
+            <button id='btn-reset'>Reset DB</button>
+          </span>
+        </div>
+      </fieldset><!-- .options -->
+      <div id='main-wrapper' class=''>
+        <fieldset class='zone-wrapper input'>
+          <legend><div class='button-bar'>
+            <button id='btn-shell-exec'>Run</button>
+            <button id='btn-clear'>Clear Input</button>
+            <!--button data-cmd='.help'>Help</button-->
+            <select id='select-examples'></select>
+          </div></legend>
+          <div><textarea id="input"
+                         placeholder="Shell input. Ctrl-enter/shift-enter runs it.">
+-- ==================================================
+-- Use ctrl-enter or shift-enter to execute sqlite3
+-- shell commands and SQL.
+-- If a subset of the text is currently selected,
+-- only that part is executed.
+-- ==================================================
+.nullvalue NULL
+.headers on
+</textarea></div>
+        </fieldset>
+        <fieldset class='zone-wrapper output'>
+          <legend><div class='button-bar'>
+            <button id='btn-clear-output'>Clear Output</button>
+            <button id='btn-interrupt' class='hidden' disabled>Interrupt</button>
+            <!-- interruption cannot work in the current configuration
+                 because we cannot send an interrupt message when work
+                 is currently underway. At that point the Worker is
+                 tied up and will not receive the message. -->
+          </div></legend>
+          <div><textarea id="output" readonly
+                         placeholder="Shell output."></textarea></div>
+        </fieldset>
+      </div>
+    </div> <!-- #view-split -->
+    <script src="fiddle.js"></script>
+  </body>
+</html>
diff --git a/ext/wasm/index-dist.html b/ext/wasm/index-dist.html
new file mode 100644
index 0000000000000000000000000000000000000000..7b778b0205ed586e7985045ce653d2353c99329d
--- /dev/null
+++ b/ext/wasm/index-dist.html
@@ -0,0 +1,115 @@
+<!doctype html>
+<html lang="en-us">
+  <head>
+    <meta charset="utf-8">
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+    <link rel="shortcut icon" href="data:image/x-icon;," type="image/x-icon">
+    <title>sqlite3 WASM Demo Page Index</title>
+  </head>
+  <body>
+    <style>
+      body {
+          display: flex;
+          flex-direction: column;
+          flex-wrap: wrap;
+      }
+      textarea {
+          font-family: monospace;
+      }
+      header {
+          font-size: 130%;
+          font-weight: bold;
+          background: #044a64;
+          color: white;
+          padding: 0.5em;
+          border-radius: 0.25em;
+      }
+      .hidden, .initially-hidden {
+          position: absolute !important;
+          opacity: 0 !important;
+          pointer-events: none !important;
+          display: none !important;
+      }
+      .warning { color: firebrick; }
+    </style>
+    <header id='titlebar'><span>sqlite3 WASM demo pages</span></header>
+    <hr>
+    <div>Below is the list of demo pages for the sqlite3 WASM
+      builds. The intent is that <em>this</em> page be run
+      using the functional equivalent of:</div>
+    <blockquote><pre><a href='https://sqlite.org/althttpd'>althttpd</a> -enable-sab -page index.html</pre></blockquote>
+    <div>and the individual pages be started in their own tab.
+      Warnings and Caveats:
+      <ul class='warning'>
+        <li>All of these pages must be served via an HTTP
+          server. Browsers do not support loading WASM files via
+          file:// URLs.</li>
+        <li>Any OPFS-related pages or tests require:
+          <ul>
+            <li>An OPFS-capable browser released after February
+              2023. Some tests will work with Chromium-based browsers
+              going back to around v102.</li>
+            <li>That the web server emit the so-called
+              <a href='https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cross-Origin-Opener-Policy'>COOP</a>
+              and
+              <a href='https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cross-Origin-Embedder-Policy'>COEP</a>
+              headers. <a href='https://sqlite.org/althttpd'>althttpd</a> requires the
+              <code>-enable-sab</code> flag for that.
+            </li>
+          </ul>
+        </li>
+      </ul>
+    </div>
+    <div>The tests and demos...
+      <ul id='test-list'>
+        <li>Core-most tests
+          <ul>
+            <li><a href='tester1.html'>tester1</a>: Core unit and
+              regression tests for the various APIs and surrounding
+              utility code.</li>
+            <li><a href='tester1-worker.html'>tester1-worker</a>: same thing
+              but running in a Worker.</li>
+            <li><a href='tester1-esm.html'>tester1-esm</a>: same as
+              <code>tester1</code> but loads sqlite3 in the main thread via
+              an ES6 module.
+            </li>
+            <li><a href='tester1-worker.html?esm'>tester1-worker?esm</a>:
+              same as <code>tester1-esm</code> but loads a Worker Module which
+              then loads the sqlite3 API via an ES6 module. Note that
+              not all browsers permit loading modules in Worker
+              threads.
+            </li>
+          </ul>
+        </li>
+        <li>Higher-level apps and demos...
+          <ul>
+            <li><a href='demo-123.html'>demo-123</a> provides a
+              no-nonsense example of adding sqlite3 support to a web
+              page in the UI thread.</li>
+            <li><a href='demo-123-worker.html'>demo-123-worker</a> is
+              the same as <code>demo-123</code> but loads and runs
+              sqlite3 from a Worker thread.</li>
+            <li><a href='demo-jsstorage.html'>demo-jsstorage</a>: very basic
+              demo of using the key-value VFS for storing a persistent db
+              in JS <code>localStorage</code> or <code>sessionStorage</code>.</li>
+            <li><a href='demo-worker1.html'>demo-worker1</a>:
+              Worker-based wrapper of the OO API #1. Its Promise-based
+              wrapper is significantly easier to use, however.</li>
+            <li><a href='demo-worker1-promiser.html'>demo-worker1-promiser</a>:
+              a demo of the Promise-based wrapper of the Worker1 API.</li>
+            <li><a href='demo-worker1-promiser-esm.html'>demo-worker1-promiser-esm</a>:
+              same as the previous demo except loads the promiser from an ESM module.</li>
+          </ul>
+        </li>
+      </ul>
+    </div>
+    <style>
+      #test-list { font-size: 120%; }
+    </style>
+    <script>//Assign a distinct target tab name for each test page...
+      document.querySelectorAll('a').forEach(function(e){
+          e.target = e.href;
+      });
+    </script>
+  </body>
+</html>
diff --git a/ext/wasm/index.html b/ext/wasm/index.html
new file mode 100644
index 0000000000000000000000000000000000000000..a3d41f1a9c4fc1bd20d402204e3ea46e61de444e
--- /dev/null
+++ b/ext/wasm/index.html
@@ -0,0 +1,149 @@
+<!doctype html>
+<html lang="en-us">
+  <head>
+    <meta charset="utf-8">
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+    <link rel="shortcut icon" href="data:image/x-icon;," type="image/x-icon">
+    <link rel="stylesheet" href="common/testing.css"/>
+    <title>sqlite3 WASM Testing Page Index</title>
+  </head>
+  <body>
+    <style>
+      header {
+          background: #044a64;
+          color: white;
+          padding: 0.5em;
+          border-radius: 0.25em;
+      }
+    </style>
+    <header id='titlebar'><span>sqlite3 WASM test pages</span></header>
+    <hr>
+    <div>Below is the list of test pages for the sqlite3 WASM
+      builds. All of them require that this directory have been
+      "make"d first. The intent is that <em>this</em> page be run
+      using:</div>
+    <blockquote><pre>althttpd -enable-sab -page index.html</pre></blockquote>
+    <div>and the individual tests be started in their own tab.
+      Warnings and Caveats:
+      <ul class='warning'>
+        <li>All of these pages must be served via an HTTP
+          server. Browsers do not support loading WASM files via
+          file:// URLs.</li>
+        <li>Any OPFS-related pages or tests require:
+          <ul>
+            <li>An OPFS-capable browser released after February
+              2023. Some tests will work with Chromium-based browsers
+              going back to around v102.</li>
+            <li>That the web server emit the so-called
+              <a href='https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cross-Origin-Opener-Policy'>COOP</a>
+              and
+              <a href='https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cross-Origin-Embedder-Policy'>COEP</a>
+              headers. <a href='https://sqlite.org/althttpd'>althttpd</a> requires the
+              <code>-enable-sab</code> flag for that.
+            </li>
+          </ul>
+        </li>
+      </ul>
+    </div>
+    <div>The tests and demos...
+      <ul id='test-list'>
+        <li>Core-most tests
+          <ul>
+            <li><a href='tester1.html'>tester1</a>: Core unit and
+              regression tests for the various APIs and surrounding
+              utility code.</li>
+            <li><a href='tester1-worker.html'>tester1-worker</a>: same thing
+              but running in a Worker.</li>
+            <li><a href='tester1-esm.html'>tester1-esm</a>: same as
+              <code>tester1</code> but loads sqlite3 in the main thread via
+              an ES6 module.
+            </li>
+            <li><a href='tester1-worker.html?esm'>tester1-worker?esm</a>:
+              same as <code>tester1-esm</code> but loads a Worker Module which
+              then loads the sqlite3 API via an ES6 module. Note that
+              not all browsers permit loading modules in Worker
+              threads.
+            </li>
+          </ul>
+        </li>
+        <li>High-level apps and demos...
+          <ul>
+            <li><a href='fiddle/index.html'>fiddle</a> is an HTML front-end
+              to a wasm build of the sqlite3 shell.</li>
+            <li><a href='demo-123.html'>demo-123</a> provides a
+              no-nonsense example of adding sqlite3 support to a web
+              page in the UI thread.</li>
+            <li><a href='demo-123-worker.html'>demo-123-worker</a> is
+              the same as <code>demo-123</code> but loads and runs
+              sqlite3 from a Worker thread.</li>
+            <li><a href='demo-jsstorage.html'>demo-jsstorage</a>: very basic
+              demo of using the key-value VFS for storing a persistent db
+              in JS <code>localStorage</code> or <code>sessionStorage</code>.</li>
+            <li><a href='demo-worker1.html'>demo-worker1</a>:
+              Worker-based wrapper of the OO API #1. Its Promise-based
+              wrapper is significantly easier to use, however.</li>
+            <li><a href='demo-worker1-promiser.html'>demo-worker1-promiser</a>:
+              a demo of the Promise-based wrapper of the Worker1 API.</li>
+            <li><a href='demo-worker1-promiser-esm.html'>demo-worker1-promiser-esm</a>:
+              same as the previous demo except loads the promiser from an ESM module.</li>
+          </ul>
+        </li>
+        <li>speedtest1 ports (sqlite3's primary benchmarking tool)...
+          <ul>
+            <li><a href='speedtest1.html'>speedtest1</a>: a main-thread WASM build of speedtest1.</li>
+            <li><a href='speedtest1.html?vfs=kvvfs'>speedtest1?vfs=kvvfs</a>: speedtest1 with the kvvfs.</li>
+            <li><a href='speedtest1-worker.html?size=15'>speedtest1-worker</a>: an interactive Worker-thread variant of speedtest1.</li>
+            <li><a href='speedtest1-worker.html?vfs=opfs&size=10'>speedtest1-worker?vfs=opfs</a>: speedtest1-worker with the
+              OPFS VFS preselected and configured for a moderate workload.</li>
+            <li><a href='speedtest1-worker.html?vfs=opfs-sahpool&size=10'>speedtest1-worker?vfs=opfs-sahpool</a>:
+              speedtest1-worker with the OPFS-SAHPOOL VFS preselected
+              and configured for a moderate workload.
+            </li>
+          </ul>
+        </li>
+        <li>The obligatory "misc." category...
+          <ul>
+            <li><a href='module-symbols.html'>module-symbols</a> gives
+              a high-level overview of the symbols exposed by the JS
+              module.</li>
+            <!--li><a href='batch-runner.html'>batch-runner</a>: runs batches of
+                SQL exported from speedtest1.</li-->
+            <li><a href='test-opfs-vfs.html'>test-opfs-vfs</a>
+              (<a href='test-opfs-vfs.html?opfs-sanity-check&opfs-verbose'>same
+              with verbose output and sanity-checking tests</a>) is an
+              sqlite3_vfs OPFS proxy using SharedArrayBuffer and the
+              Atomics APIs to regulate communication between the
+              synchronous sqlite3_vfs interface and the async OPFS
+              impl.
+            </li>
+            <li><a href='tests/opfs/concurrency/index.html'>OPFS concurrency</a>
+              tests using multiple workers.
+            </li>
+          </ul>
+        </li>
+        <li><strong>WASMFS</strong>-specific tests which require that
+          the WASMFS build is available on this server (it is not by
+          default) and that this server emits the COOP/COEP headers.
+          <ul>
+            <!--li><a href='scratchpad-wasmfs.html'>scratchpad-wasmfs</a>:
+              experimenting with WASMFS/OPFS-based persistence.
+            </li-->
+            <li><a href='speedtest1-wasmfs.html?flags=--size,10'>speedtest1-wasmfs</a>:
+              a variant of speedtest1 built solely for the wasmfs/opfs
+              feature.
+            </li>
+          </ul>
+        </li>
+        <!--li><a href='x.html'></a></li-->
+      </ul>
+    </div>
+    <style>
+      #test-list { font-size: 120%; }
+    </style>
+    <script>//Assign a distinct target tab name for each test page...
+      document.querySelectorAll('a').forEach(function(e){
+          e.target = e.href.replace(/^http*:\/\/[^/]+\//, '');
+      });
+    </script>
+  </body>
+</html>
diff --git a/ext/wasm/jaccwabyt/jaccwabyt.js b/ext/wasm/jaccwabyt/jaccwabyt.js
new file mode 100644
index 0000000000000000000000000000000000000000..1846441e55f87566433e889e73c9253fec7b8d1d
--- /dev/null
+++ b/ext/wasm/jaccwabyt/jaccwabyt.js
@@ -0,0 +1,696 @@
+/**
+  2022-06-30
+
+  The author disclaims copyright to this source code.  In place of a
+  legal notice, here is a blessing:
+
+  *   May you do good and not evil.
+  *   May you find forgiveness for yourself and forgive others.
+  *   May you share freely, never taking more than you give.
+
+  ***********************************************************************
+
+  The Jaccwabyt API is documented in detail in an external file,
+  _possibly_ called jaccwabyt.md in the same directory as this file.
+
+  Project homes:
+  - https://fossil.wanderinghorse.net/r/jaccwabyt
+  - https://sqlite.org/src/dir/ext/wasm/jaccwabyt
+
+*/
+'use strict';
+globalThis.Jaccwabyt = function StructBinderFactory(config){
+/* ^^^^ it is recommended that clients move that object into wherever
+   they'd like to have it and delete the self-held copy ("self" being
+   the global window or worker object).  This API does not require the
+   global reference - it is simply installed as a convenience for
+   connecting these bits to other co-developed code before it gets
+   removed from the global namespace.
+*/
+
+  /** Throws a new Error, the message of which is the concatenation
+      all args with a space between each. */
+  const toss = (...args)=>{throw new Error(args.join(' '))};
+
+  /**
+     Implementing function bindings revealed significant
+     shortcomings in Emscripten's addFunction()/removeFunction()
+     interfaces:
+
+     https://github.com/emscripten-core/emscripten/issues/17323
+
+     Until those are resolved, or a suitable replacement can be
+     implemented, our function-binding API will be more limited
+     and/or clumsier to use than initially hoped.
+  */
+  if(!(config.heap instanceof WebAssembly.Memory)
+     && !(config.heap instanceof Function)){
+    toss("config.heap must be WebAssembly.Memory instance or a function.");
+  }
+  ['alloc','dealloc'].forEach(function(k){
+    (config[k] instanceof Function) ||
+      toss("Config option '"+k+"' must be a function.");
+  });
+  const SBF = StructBinderFactory;
+  const heap = (config.heap instanceof Function)
+        ? config.heap : (()=>new Uint8Array(config.heap.buffer)),
+        alloc = config.alloc,
+        dealloc = config.dealloc,
+        log = config.log || console.log.bind(console),
+        memberPrefix = (config.memberPrefix || ""),
+        memberSuffix = (config.memberSuffix || ""),
+        bigIntEnabled = (undefined===config.bigIntEnabled
+                         ? !!globalThis['BigInt64Array'] : !!config.bigIntEnabled),
+        BigInt = globalThis['BigInt'],
+        BigInt64Array = globalThis['BigInt64Array'],
+        /* Undocumented (on purpose) config options: */
+        ptrSizeof = config.ptrSizeof || 4,
+        ptrIR = config.ptrIR || 'i32'
+  ;
+
+  if(!SBF.debugFlags){
+    SBF.__makeDebugFlags = function(deriveFrom=null){
+      /* This is disgustingly overengineered. :/ */
+      if(deriveFrom && deriveFrom.__flags) deriveFrom = deriveFrom.__flags;
+      const f = function f(flags){
+        if(0===arguments.length){
+          return f.__flags;
+        }
+        if(flags<0){
+          delete f.__flags.getter; delete f.__flags.setter;
+          delete f.__flags.alloc; delete f.__flags.dealloc;
+        }else{
+          f.__flags.getter  = 0!==(0x01 & flags);
+          f.__flags.setter  = 0!==(0x02 & flags);
+          f.__flags.alloc   = 0!==(0x04 & flags);
+          f.__flags.dealloc = 0!==(0x08 & flags);
+        }
+        return f._flags;
+      };
+      Object.defineProperty(f,'__flags', {
+        iterable: false, writable: false,
+        value: Object.create(deriveFrom)
+      });
+      if(!deriveFrom) f(0);
+      return f;
+    };
+    SBF.debugFlags = SBF.__makeDebugFlags();
+  }/*static init*/
+
+  const isLittleEndian = (function() {
+    const buffer = new ArrayBuffer(2);
+    new DataView(buffer).setInt16(0, 256, true /* littleEndian */);
+    // Int16Array uses the platform's endianness.
+    return new Int16Array(buffer)[0] === 256;
+  })();
+  /**
+     Some terms used in the internal docs:
+
+     StructType: a struct-wrapping class generated by this
+     framework.
+     DEF: struct description object.
+     SIG: struct member signature string.
+  */
+
+  /** True if SIG s looks like a function signature, else
+      false. */
+  const isFuncSig = (s)=>'('===s[1];
+  /** True if SIG s is-a pointer signature. */
+  const isPtrSig = (s)=>'p'===s || 'P'===s;
+  const isAutoPtrSig = (s)=>'P'===s /*EXPERIMENTAL*/;
+  const sigLetter = (s)=>isFuncSig(s) ? 'p' : s[0];
+  /** Returns the WASM IR form of the Emscripten-conventional letter
+      at SIG s[0]. Throws for an unknown SIG. */
+  const sigIR = function(s){
+    switch(sigLetter(s)){
+        case 'c': case 'C': return 'i8';
+        case 'i': return 'i32';
+        case 'p': case 'P': case 's': return ptrIR;
+        case 'j': return 'i64';
+        case 'f': return 'float';
+        case 'd': return 'double';
+    }
+    toss("Unhandled signature IR:",s);
+  };
+
+  const affirmBigIntArray = BigInt64Array
+        ? ()=>true : ()=>toss('BigInt64Array is not available.');
+  /** Returns the name of a DataView getter method corresponding
+      to the given SIG. */
+  const sigDVGetter = function(s){
+    switch(sigLetter(s)) {
+        case 'p': case 'P': case 's': {
+          switch(ptrSizeof){
+              case 4: return 'getInt32';
+              case 8: return affirmBigIntArray() && 'getBigInt64';
+          }
+          break;
+        }
+        case 'i': return 'getInt32';
+        case 'c': return 'getInt8';
+        case 'C': return 'getUint8';
+        case 'j': return affirmBigIntArray() && 'getBigInt64';
+        case 'f': return 'getFloat32';
+        case 'd': return 'getFloat64';
+    }
+    toss("Unhandled DataView getter for signature:",s);
+  };
+  /** Returns the name of a DataView setter method corresponding
+      to the given SIG. */
+  const sigDVSetter = function(s){
+    switch(sigLetter(s)){
+        case 'p': case 'P': case 's': {
+          switch(ptrSizeof){
+              case 4: return 'setInt32';
+              case 8: return affirmBigIntArray() && 'setBigInt64';
+          }
+          break;
+        }
+        case 'i': return 'setInt32';
+        case 'c': return 'setInt8';
+        case 'C': return 'setUint8';
+        case 'j': return affirmBigIntArray() && 'setBigInt64';
+        case 'f': return 'setFloat32';
+        case 'd': return 'setFloat64';
+    }
+    toss("Unhandled DataView setter for signature:",s);
+  };
+  /**
+     Returns either Number of BigInt, depending on the given
+     SIG. This constructor is used in property setters to coerce
+     the being-set value to the correct size.
+  */
+  const sigDVSetWrapper = function(s){
+    switch(sigLetter(s)) {
+        case 'i': case 'f': case 'c': case 'C': case 'd': return Number;
+        case 'j': return affirmBigIntArray() && BigInt;
+        case 'p': case 'P': case 's':
+          switch(ptrSizeof){
+              case 4: return Number;
+              case 8: return affirmBigIntArray() && BigInt;
+          }
+          break;
+    }
+    toss("Unhandled DataView set wrapper for signature:",s);
+  };
+
+  /** Returns the given struct and member name in a form suitable for
+      debugging and error output. */
+  const sPropName = (s,k)=>s+'::'+k;
+
+  const __propThrowOnSet = function(structName,propName){
+    return ()=>toss(sPropName(structName,propName),"is read-only.");
+  };
+
+  /**
+     In order to completely hide StructBinder-bound struct
+     pointers from JS code, we store them in a scope-local
+     WeakMap which maps the struct-bound objects to their WASM
+     pointers. The pointers are accessible via
+     boundObject.pointer, which is gated behind an accessor
+     function, but are not exposed anywhere else in the
+     object. The main intention of that is to make it impossible
+     for stale copies to be made.
+  */
+  const __instancePointerMap = new WeakMap();
+
+  /** Property name for the pointer-is-external marker. */
+  const xPtrPropName = '(pointer-is-external)';
+
+  /** Frees the obj.pointer memory and clears the pointer
+      property. */
+  const __freeStruct = function(ctor, obj, m){
+    if(!m) m = __instancePointerMap.get(obj);
+    if(m) {
+      __instancePointerMap.delete(obj);
+      if(Array.isArray(obj.ondispose)){
+        let x;
+        while((x = obj.ondispose.shift())){
+          try{
+            if(x instanceof Function) x.call(obj);
+            else if(x instanceof StructType) x.dispose();
+            else if('number' === typeof x) dealloc(x);
+            // else ignore. Strings are permitted to annotate entries
+            // to assist in debugging.
+          }catch(e){
+            console.warn("ondispose() for",ctor.structName,'@',
+                         m,'threw. NOT propagating it.',e);
+          }
+        }
+      }else if(obj.ondispose instanceof Function){
+        try{obj.ondispose()}
+        catch(e){
+          /*do not rethrow: destructors must not throw*/
+          console.warn("ondispose() for",ctor.structName,'@',
+                       m,'threw. NOT propagating it.',e);
+        }
+      }
+      delete obj.ondispose;
+      if(ctor.debugFlags.__flags.dealloc){
+        log("debug.dealloc:",(obj[xPtrPropName]?"EXTERNAL":""),
+            ctor.structName,"instance:",
+            ctor.structInfo.sizeof,"bytes @"+m);
+      }
+      if(!obj[xPtrPropName]) dealloc(m);
+    }
+  };
+
+  /** Returns a skeleton for a read-only property accessor wrapping
+      value v. */
+  const rop = (v)=>{return {configurable: false, writable: false,
+                            iterable: false, value: v}};
+
+  /** Allocates obj's memory buffer based on the size defined in
+      ctor.structInfo.sizeof. */
+  const __allocStruct = function(ctor, obj, m){
+    let fill = !m;
+    if(m) Object.defineProperty(obj, xPtrPropName, rop(m));
+    else{
+      m = alloc(ctor.structInfo.sizeof);
+      if(!m) toss("Allocation of",ctor.structName,"structure failed.");
+    }
+    try {
+      if(ctor.debugFlags.__flags.alloc){
+        log("debug.alloc:",(fill?"":"EXTERNAL"),
+            ctor.structName,"instance:",
+            ctor.structInfo.sizeof,"bytes @"+m);
+      }
+      if(fill) heap().fill(0, m, m + ctor.structInfo.sizeof);
+      __instancePointerMap.set(obj, m);
+    }catch(e){
+      __freeStruct(ctor, obj, m);
+      throw e;
+    }
+  };
+  /** Gets installed as the memoryDump() method of all structs. */
+  const __memoryDump = function(){
+    const p = this.pointer;
+    return p
+      ? new Uint8Array(heap().slice(p, p+this.structInfo.sizeof))
+      : null;
+  };
+
+  const __memberKey = (k)=>memberPrefix + k + memberSuffix;
+  const __memberKeyProp = rop(__memberKey);
+
+  /**
+     Looks up a struct member in structInfo.members. Throws if found
+     if tossIfNotFound is true, else returns undefined if not
+     found. The given name may be either the name of the
+     structInfo.members key (faster) or the key as modified by the
+     memberPrefix and memberSuffix settings.
+  */
+  const __lookupMember = function(structInfo, memberName, tossIfNotFound=true){
+    let m = structInfo.members[memberName];
+    if(!m && (memberPrefix || memberSuffix)){
+      // Check for a match on members[X].key
+      for(const v of Object.values(structInfo.members)){
+        if(v.key===memberName){ m = v; break; }
+      }
+      if(!m && tossIfNotFound){
+        toss(sPropName(structInfo.name,memberName),'is not a mapped struct member.');
+      }
+    }
+    return m;
+  };
+
+  /**
+     Uses __lookupMember(obj.structInfo,memberName) to find a member,
+     throwing if not found. Returns its signature, either in this
+     framework's native format or in Emscripten format.
+  */
+  const __memberSignature = function f(obj,memberName,emscriptenFormat=false){
+    if(!f._) f._ = (x)=>x.replace(/[^vipPsjrdcC]/g,"").replace(/[pPscC]/g,'i');
+    const m = __lookupMember(obj.structInfo, memberName, true);
+    return emscriptenFormat ? f._(m.signature) : m.signature;
+  };
+
+  const __ptrPropDescriptor = {
+    configurable: false, enumerable: false,
+    get: function(){return __instancePointerMap.get(this)},
+    set: ()=>toss("Cannot assign the 'pointer' property of a struct.")
+    // Reminder: leaving `set` undefined makes assignments
+    // to the property _silently_ do nothing. Current unit tests
+    // rely on it throwing, though.
+  };
+
+  /** Impl of X.memberKeys() for StructType and struct ctors. */
+  const __structMemberKeys = rop(function(){
+    const a = [];
+    for(const k of Object.keys(this.structInfo.members)){
+      a.push(this.memberKey(k));
+    }
+    return a;
+  });
+
+  const __utf8Decoder = new TextDecoder('utf-8');
+  const __utf8Encoder = new TextEncoder();
+  /** Internal helper to use in operations which need to distinguish
+      between SharedArrayBuffer heap memory and non-shared heap. */
+  const __SAB = ('undefined'===typeof SharedArrayBuffer)
+        ? function(){} : SharedArrayBuffer;
+  const __utf8Decode = function(arrayBuffer, begin, end){
+    return __utf8Decoder.decode(
+      (arrayBuffer.buffer instanceof __SAB)
+        ? arrayBuffer.slice(begin, end)
+        : arrayBuffer.subarray(begin, end)
+    );
+  };
+  /**
+     Uses __lookupMember() to find the given obj.structInfo key.
+     Returns that member if it is a string, else returns false. If the
+     member is not found, throws if tossIfNotFound is true, else
+     returns false.
+   */
+  const __memberIsString = function(obj,memberName, tossIfNotFound=false){
+    const m = __lookupMember(obj.structInfo, memberName, tossIfNotFound);
+    return (m && 1===m.signature.length && 's'===m.signature[0]) ? m : false;
+  };
+
+  /**
+     Given a member description object, throws if member.signature is
+     not valid for assigning to or interpretation as a C-style string.
+     It optimistically assumes that any signature of (i,p,s) is
+     C-string compatible.
+  */
+  const __affirmCStringSignature = function(member){
+    if('s'===member.signature) return;
+    toss("Invalid member type signature for C-string value:",
+         JSON.stringify(member));
+  };
+
+  /**
+     Looks up the given member in obj.structInfo. If it has a
+     signature of 's' then it is assumed to be a C-style UTF-8 string
+     and a decoded copy of the string at its address is returned. If
+     the signature is of any other type, it throws. If an s-type
+     member's address is 0, `null` is returned.
+  */
+  const __memberToJsString = function f(obj,memberName){
+    const m = __lookupMember(obj.structInfo, memberName, true);
+    __affirmCStringSignature(m);
+    const addr = obj[m.key];
+    //log("addr =",addr,memberName,"m =",m);
+    if(!addr) return null;
+    let pos = addr;
+    const mem = heap();
+    for( ; mem[pos]!==0; ++pos ) {
+      //log("mem[",pos,"]",mem[pos]);
+    };
+    //log("addr =",addr,"pos =",pos);
+    return (addr===pos) ? "" : __utf8Decode(mem, addr, pos);
+  };
+
+  /**
+     Adds value v to obj.ondispose, creating ondispose,
+     or converting it to an array, if needed.
+  */
+  const __addOnDispose = function(obj, ...v){
+    if(obj.ondispose){
+      if(!Array.isArray(obj.ondispose)){
+        obj.ondispose = [obj.ondispose];
+      }
+    }else{
+      obj.ondispose = [];
+    }
+    obj.ondispose.push(...v);
+  };
+
+  /**
+     Allocates a new UTF-8-encoded, NUL-terminated copy of the given
+     JS string and returns its address relative to heap(). If
+     allocation returns 0 this function throws. Ownership of the
+     memory is transfered to the caller, who must eventually pass it
+     to the configured dealloc() function.
+  */
+  const __allocCString = function(str){
+    const u = __utf8Encoder.encode(str);
+    const mem = alloc(u.length+1);
+    if(!mem) toss("Allocation error while duplicating string:",str);
+    const h = heap();
+    //let i = 0;
+    //for( ; i < u.length; ++i ) h[mem + i] = u[i];
+    h.set(u, mem);
+    h[mem + u.length] = 0;
+    //log("allocCString @",mem," =",u);
+    return mem;
+  };
+
+  /**
+     Sets the given struct member of obj to a dynamically-allocated,
+     UTF-8-encoded, NUL-terminated copy of str. It is up to the caller
+     to free any prior memory, if appropriate. The newly-allocated
+     string is added to obj.ondispose so will be freed when the object
+     is disposed.
+
+     The given name may be either the name of the structInfo.members
+     key (faster) or the key as modified by the memberPrefix and
+     memberSuffix settings.
+  */
+  const __setMemberCString = function(obj, memberName, str){
+    const m = __lookupMember(obj.structInfo, memberName, true);
+    __affirmCStringSignature(m);
+    /* Potential TODO: if obj.ondispose contains obj[m.key] then
+       dealloc that value and clear that ondispose entry */
+    const mem = __allocCString(str);
+    obj[m.key] = mem;
+    __addOnDispose(obj, mem);
+    return obj;
+  };
+
+  /**
+     Prototype for all StructFactory instances (the constructors
+     returned from StructBinder).
+  */
+  const StructType = function ctor(structName, structInfo){
+    if(arguments[2]!==rop){
+      toss("Do not call the StructType constructor",
+           "from client-level code.");
+    }
+    Object.defineProperties(this,{
+      //isA: rop((v)=>v instanceof ctor),
+      structName: rop(structName),
+      structInfo: rop(structInfo)
+    });
+  };
+
+  /**
+     Properties inherited by struct-type-specific StructType instances
+     and (indirectly) concrete struct-type instances.
+  */
+  StructType.prototype = Object.create(null, {
+    dispose: rop(function(){__freeStruct(this.constructor, this)}),
+    lookupMember: rop(function(memberName, tossIfNotFound=true){
+      return __lookupMember(this.structInfo, memberName, tossIfNotFound);
+    }),
+    memberToJsString: rop(function(memberName){
+      return __memberToJsString(this, memberName);
+    }),
+    memberIsString: rop(function(memberName, tossIfNotFound=true){
+      return __memberIsString(this, memberName, tossIfNotFound);
+    }),
+    memberKey: __memberKeyProp,
+    memberKeys: __structMemberKeys,
+    memberSignature: rop(function(memberName, emscriptenFormat=false){
+      return __memberSignature(this, memberName, emscriptenFormat);
+    }),
+    memoryDump: rop(__memoryDump),
+    pointer: __ptrPropDescriptor,
+    setMemberCString: rop(function(memberName, str){
+      return __setMemberCString(this, memberName, str);
+    })
+  });
+  // Function-type non-Property inherited members 
+  Object.assign(StructType.prototype,{
+    addOnDispose: function(...v){
+      __addOnDispose(this,...v);
+      return this;
+    }
+  });
+
+  /**
+     "Static" properties for StructType.
+  */
+  Object.defineProperties(StructType, {
+    allocCString: rop(__allocCString),
+    isA: rop((v)=>v instanceof StructType),
+    hasExternalPointer: rop((v)=>(v instanceof StructType) && !!v[xPtrPropName]),
+    memberKey: __memberKeyProp
+  });
+
+  const isNumericValue = (v)=>Number.isFinite(v) || (v instanceof (BigInt || Number));
+
+  /**
+     Pass this a StructBinder-generated prototype, and the struct
+     member description object. It will define property accessors for
+     proto[memberKey] which read from/write to memory in
+     this.pointer. It modifies descr to make certain downstream
+     operations much simpler.
+  */
+  const makeMemberWrapper = function f(ctor,name, descr){
+    if(!f._){
+      /*cache all available getters/setters/set-wrappers for
+        direct reuse in each accessor function. */
+      f._ = {getters: {}, setters: {}, sw:{}};
+      const a = ['i','c','C','p','P','s','f','d','v()'];
+      if(bigIntEnabled) a.push('j');
+      a.forEach(function(v){
+        //const ir = sigIR(v);
+        f._.getters[v] = sigDVGetter(v) /* DataView[MethodName] values for GETTERS */;
+        f._.setters[v] = sigDVSetter(v) /* DataView[MethodName] values for SETTERS */;
+        f._.sw[v] = sigDVSetWrapper(v)  /* BigInt or Number ctor to wrap around values
+                                           for conversion */;
+      });
+      const rxSig1 = /^[ipPsjfdcC]$/,
+            rxSig2 = /^[vipPsjfdcC]\([ipPsjfdcC]*\)$/;
+      f.sigCheck = function(obj, name, key,sig){
+        if(Object.prototype.hasOwnProperty.call(obj, key)){
+          toss(obj.structName,'already has a property named',key+'.');
+        }
+        rxSig1.test(sig) || rxSig2.test(sig)
+          || toss("Malformed signature for",
+                  sPropName(obj.structName,name)+":",sig);
+      };
+    }
+    const key = ctor.memberKey(name);
+    f.sigCheck(ctor.prototype, name, key, descr.signature);
+    descr.key = key;
+    descr.name = name;
+    const sigGlyph = sigLetter(descr.signature);
+    const xPropName = sPropName(ctor.prototype.structName,key);
+    const dbg = ctor.prototype.debugFlags.__flags;
+    /*
+      TODO?: set prototype of descr to an object which can set/fetch
+      its prefered representation, e.g. conversion to string or mapped
+      function. Advantage: we can avoid doing that via if/else if/else
+      in the get/set methods.
+    */
+    const prop = Object.create(null);
+    prop.configurable = false;
+    prop.enumerable = false;
+    prop.get = function(){
+      if(dbg.getter){
+        log("debug.getter:",f._.getters[sigGlyph],"for", sigIR(sigGlyph),
+            xPropName,'@', this.pointer,'+',descr.offset,'sz',descr.sizeof);
+      }
+      let rc = (
+        new DataView(heap().buffer, this.pointer + descr.offset, descr.sizeof)
+      )[f._.getters[sigGlyph]](0, isLittleEndian);
+      if(dbg.getter) log("debug.getter:",xPropName,"result =",rc);
+      return rc;
+    };
+    if(descr.readOnly){
+      prop.set = __propThrowOnSet(ctor.prototype.structName,key);
+    }else{
+      prop.set = function(v){
+        if(dbg.setter){
+          log("debug.setter:",f._.setters[sigGlyph],"for", sigIR(sigGlyph),
+              xPropName,'@', this.pointer,'+',descr.offset,'sz',descr.sizeof, v);
+        }
+        if(!this.pointer){
+          toss("Cannot set struct property on disposed instance.");
+        }
+        if(null===v) v = 0;
+        else while(!isNumericValue(v)){
+          if(isAutoPtrSig(descr.signature) && (v instanceof StructType)){
+            // It's a struct instance: let's store its pointer value!
+            v = v.pointer || 0;
+            if(dbg.setter) log("debug.setter:",xPropName,"resolved to",v);
+            break;
+          }
+          toss("Invalid value for pointer-type",xPropName+'.');
+        }
+        (
+          new DataView(heap().buffer, this.pointer + descr.offset, descr.sizeof)
+        )[f._.setters[sigGlyph]](0, f._.sw[sigGlyph](v), isLittleEndian);
+      };
+    }
+    Object.defineProperty(ctor.prototype, key, prop);
+  }/*makeMemberWrapper*/;
+  
+  /**
+     The main factory function which will be returned to the
+     caller.
+  */
+  const StructBinder = function StructBinder(structName, structInfo){
+    if(1===arguments.length){
+      structInfo = structName;
+      structName = structInfo.name;
+    }else if(!structInfo.name){
+      structInfo.name = structName;
+    }
+    if(!structName) toss("Struct name is required.");
+    let lastMember = false;
+    Object.keys(structInfo.members).forEach((k)=>{
+      // Sanity checks of sizeof/offset info...
+      const m = structInfo.members[k];
+      if(!m.sizeof) toss(structName,"member",k,"is missing sizeof.");
+      else if(m.sizeof===1){
+        (m.signature === 'c' || m.signature === 'C') ||
+          toss("Unexpected sizeof==1 member",
+               sPropName(structInfo.name,k),
+               "with signature",m.signature);
+      }else{
+        // sizes and offsets of size-1 members may be odd values, but
+        // others may not.
+        if(0!==(m.sizeof%4)){
+          console.warn("Invalid struct member description =",m,"from",structInfo);
+          toss(structName,"member",k,"sizeof is not aligned. sizeof="+m.sizeof);
+        }
+        if(0!==(m.offset%4)){
+          console.warn("Invalid struct member description =",m,"from",structInfo);
+          toss(structName,"member",k,"offset is not aligned. offset="+m.offset);
+        }
+      }
+      if(!lastMember || lastMember.offset < m.offset) lastMember = m;
+    });
+    if(!lastMember) toss("No member property descriptions found.");
+    else if(structInfo.sizeof < lastMember.offset+lastMember.sizeof){
+      toss("Invalid struct config:",structName,
+           "max member offset ("+lastMember.offset+") ",
+           "extends past end of struct (sizeof="+structInfo.sizeof+").");
+    }
+    const debugFlags = rop(SBF.__makeDebugFlags(StructBinder.debugFlags));
+    /** Constructor for the StructCtor. */
+    const StructCtor = function StructCtor(externalMemory){
+      if(!(this instanceof StructCtor)){
+        toss("The",structName,"constructor may only be called via 'new'.");
+      }else if(arguments.length){
+        if(externalMemory!==(externalMemory|0) || externalMemory<=0){
+          toss("Invalid pointer value for",structName,"constructor.");
+        }
+        __allocStruct(StructCtor, this, externalMemory);
+      }else{
+        __allocStruct(StructCtor, this);
+      }
+    };
+    Object.defineProperties(StructCtor,{
+      debugFlags: debugFlags,
+      isA: rop((v)=>v instanceof StructCtor),
+      memberKey: __memberKeyProp,
+      memberKeys: __structMemberKeys,
+      methodInfoForKey: rop(function(mKey){
+      }),
+      structInfo: rop(structInfo),
+      structName: rop(structName)
+    });
+    StructCtor.prototype = new StructType(structName, structInfo, rop);
+    Object.defineProperties(StructCtor.prototype,{
+      debugFlags: debugFlags,
+      constructor: rop(StructCtor)
+      /*if we assign StructCtor.prototype and don't do
+        this then StructCtor!==instance.constructor!*/
+    });
+    Object.keys(structInfo.members).forEach(
+      (name)=>makeMemberWrapper(StructCtor, name, structInfo.members[name])
+    );
+    return StructCtor;
+  };
+  StructBinder.StructType = StructType;
+  StructBinder.config = config;
+  StructBinder.allocCString = __allocCString;
+  if(!StructBinder.debugFlags){
+    StructBinder.debugFlags = SBF.__makeDebugFlags(SBF.debugFlags);
+  }
+  return StructBinder;
+}/*StructBinderFactory*/;
diff --git a/ext/wasm/jaccwabyt/jaccwabyt.md b/ext/wasm/jaccwabyt/jaccwabyt.md
new file mode 100644
index 0000000000000000000000000000000000000000..431741edcab2973390c24b26b476696f0529d17f
--- /dev/null
+++ b/ext/wasm/jaccwabyt/jaccwabyt.md
@@ -0,0 +1,1065 @@
+Jaccwabyt 🐇
+============================================================
+
+**Jaccwabyt**: _JavaScript ⇄ C Struct Communication via WASM Byte
+Arrays_
+
+Welcome to Jaccwabyt, a JavaScript API which creates bindings for
+WASM-compiled C structs, defining them in such a way that changes to
+their state in JS are visible in C/WASM, and vice versa, permitting
+two-way interchange of struct state with very little user-side
+friction.
+
+(If that means nothing to you, neither will the rest of this page!)
+
+**Browser compatibility**: this library requires a _recent_ browser
+and makes no attempt whatsoever to accommodate "older" or
+lesser-capable ones, where "recent," _very roughly_, means released in
+mid-2018 or later, with late 2021 releases required for some optional
+features in some browsers (e.g. [BigInt64Array][] in Safari). It also
+relies on a couple non-standard, but widespread, features, namely
+[TextEncoder][] and [TextDecoder][]. It is developed primarily on
+Firefox and Chrome on Linux and all claims of Safari compatibility
+are based solely on feature compatibility tables provided at
+[MDN][].
+
+**Formalities:**
+
+- Author: [Stephan Beal][sgb]
+- Project Homes:
+  - <https://fossil.wanderinghorse.net/r/jaccwabyt>\  
+    Is the primary home but...
+  - <https://sqlite.org/src/dir/ext/wasm/jaccwabyt>\  
+    ... most development happens here.
+
+The license for both this documentation and the software it documents
+is the same as [sqlite3][], the project from which this spinoff
+project was spawned:
+
+-----
+
+> 2022-06-30:
+>
+> The author disclaims copyright to this source code.  In place of a
+> legal notice, here is a blessing:
+>
+>    May you do good and not evil.
+>    May you find forgiveness for yourself and forgive others.
+>    May you share freely, never taking more than you give.
+
+-----
+
+<a name='overview'></a>
+Table of Contents
+============================================================
+
+- [Overview](#overview)
+  - [Architecture](#architecture)
+- [Creating and Binding Structs](#creating-binding)
+  - [Step 1: Configure Jaccwabyt](#step-1)
+  - [Step 2: Struct Description](#step-2)
+     - [`P` vs `p`](#step-2-pvsp)
+  - [Step 3: Binding a Struct](#step-3)
+  - [Step 4: Creating, Using, and Destroying Instances](#step-4)
+- APIs
+  - [Struct Binder Factory](#api-binderfactory)
+  - [Struct Binder](#api-structbinder)
+  - [Struct Type](#api-structtype)
+  - [Struct Constructors](#api-structctor)
+  - [Struct Protypes](#api-structprototype)
+  - [Struct Instances](#api-structinstance)
+- Appendices
+  - [Appendix A: Limitations, TODOs, etc.](#appendix-a)
+  - [Appendix D: Debug Info](#appendix-d)
+  - [Appendix G: Generating Struct Descriptions](#appendix-g)
+
+<a name='overview'></a>
+Overview
+============================================================
+
+Management summary: this JavaScript-only framework provides limited
+two-way bindings between C structs and JavaScript objects, such that
+changes to the struct in one environment are visible in the other.
+
+Details...
+
+It works by creating JavaScript proxies for C structs. Reads and
+writes of the JS-side members are marshaled through a flat byte array
+allocated from the WASM heap. As that heap is shared with the C-side
+code, and the memory block is written using the same approach C does,
+that byte array can be used to access and manipulate a given struct
+instance from both JS and C.
+
+Motivating use case: this API was initially developed as an
+experiment to determine whether it would be feasible to implement,
+completely in JS, custom "VFS" and "virtual table" objects for the
+WASM build of [sqlite3][]. Doing so was going to require some form of
+two-way binding of several structs.  Once the proof of concept was
+demonstrated, a rabbit hole appeared and _down we went_... It has
+since grown beyond its humble proof-of-concept origins and is believed
+to be a useful (or at least interesting) tool for mixed JS/C
+applications.
+
+Portability notes:
+
+- These docs sometimes use [Emscripten][] as a point of reference
+  because it is the most widespread WASM toolchain, but this code is
+  specifically designed to be usable in arbitrary WASM environments.
+  It abstracts away a few Emscripten-specific features into
+  configurable options. Similarly, the build tree requires Emscripten
+  but Jaccwabyt does not have any hard Emscripten dependencies.
+- This code is encapsulated into a single JavaScript function. It
+  should be trivial to copy/paste into arbitrary WASM/JS-using
+  projects.
+- The source tree includes C code, but only for testing and
+  demonstration purposes. It is not part of the core distributable.
+
+<a name='architecture'></a>
+Architecture
+------------------------------------------------------------
+
+<!--
+bug(?) (fossil): using "center" shrinks pikchr too much.
+-->
+
+```pikchr
+BSBF: box rad 0.3*boxht "StructBinderFactory" fit fill lightblue
+BSB: box same "StructBinder" fit at 0.75 e of 0.7 s of BSBF.c
+BST: box same "StructType<T>" fit at 1.5 e of BSBF
+BSC: box same "Struct<T>" "Ctor" fit at 1.5 s of BST
+BSI: box same "Struct<T>" "Instances" fit at 1 right of BSB.e
+BC: box same at 0.25 right of 1.6 e of BST "C Structs" fit fill lightgrey
+
+arrow -> from BSBF.s to BSB.w "Generates" aligned above
+arrow -> from BSB.n to BST.sw "Contains" aligned above
+arrow -> from BSB.s to BSC.nw "Generates" aligned below
+arrow -> from BSC.ne to BSI.s "Constructs" aligned below
+arrow <- from BST.se to BSI.n "Inherits" aligned above
+arrow <-> from BSI.e to BC.s dotted "Shared" aligned above "Memory" aligned below
+arrow -> from BST.e to BC.w dotted "Mirrors Struct" aligned above "Model From" aligned below
+arrow -> from BST.s to BSC.n "Prototype of" aligned above
+```
+
+Its major classes and functions are:
+
+- **[StructBinderFactory][StructBinderFactory]** is a factory function which
+  accepts a configuration object to customize it for a given WASM
+  environment. A client will typically call this only one time, with
+  an appropriate configuration, to generate a single...
+- **[StructBinder][]** is a factory function which converts an
+  arbitrary number struct descriptions into...
+- **[StructTypes][StructCtors]** are constructors, one per struct
+  description, which inherit from
+  **[`StructBinder.StructType`][StructType]** and are used to instantiate...
+- **[Struct instances][StructInstance]** are objects representing
+  individual instances of generated struct types.
+
+An app may have any number of StructBinders, but will typically
+need only one. Each StructBinder is effectively a separate
+namespace for struct creation.
+
+
+<a name='creating-binding'></a>
+Creating and Binding Structs
+============================================================
+
+From the amount of documentation provided, it may seem that
+creating and using struct bindings is a daunting task, but it
+essentially boils down to:
+
+1. [Confire Jaccwabyt for your WASM environment](#step-1). This is a
+   one-time task per project and results is a factory function which
+   can create new struct bindings.
+2. [Create a JSON-format description of your C structs](#step-2). This is
+   required once for each struct and required updating if the C
+   structs change.
+3. [Feed (2) to the function generated by (1)](#step-3) to create JS
+   constuctor functions for each struct. This is done at runtime, as
+   opposed to during a build-process step, and can be set up in such a
+   way that it does not require any maintenace after its initial
+   setup.
+4. [Create and use instances of those structs](#step-4).
+
+Detailed instructions for each of those steps follows...
+
+<a name='step-1'></a>
+Step 1: Configure Jaccwabyt for the Environment
+------------------------------------------------------------
+
+Jaccwabyt's highest-level API is a single function. It creates a
+factory for processing struct descriptions, but does not process any
+descriptions itself. This level of abstraction exist primarily so that
+the struct-specific factories can be configured for a given WASM
+environment. Its usage looks like:
+
+>  
+```javascript
+const MyBinder = StructBinderFactory({
+  // These config options are all required:
+  heap: WebAssembly.Memory instance or a function which returns
+        a Uint8Array or Int8Array view of the WASM memory,
+  alloc:   function(howMuchMemory){...},
+  dealloc: function(pointerToFree){...}
+});
+```
+
+It also offers a number of other settings, but all are optional except
+for the ones shown above. Those three config options abstract away
+details which are specific to a given WASM environment. They provide
+the WASM "heap" memory, the memory allocator, and the deallocator. In
+a conventional Emscripten setup, that config might simply look like:
+
+>  
+```javascript
+{
+    heap:    Module['asm']['memory'],
+    //Or:
+    // heap: ()=>Module['HEAP8'],
+    alloc:   (n)=>Module['_malloc'](n),
+    dealloc: (m)=>Module['_free'](m)
+}
+```
+
+The StructBinder factory function returns a function which can then be
+used to create bindings for our structs.
+
+<a name='step-2'></a>
+Step 2: Create a Struct Description
+------------------------------------------------------------
+
+The primary input for this framework is a JSON-compatible construct
+which describes a struct we want to bind. For example, given this C
+struct:
+
+>  
+```c
+// C-side:
+struct Foo {
+  int member1;
+  void * member2;
+  int64_t member3;
+};
+```
+
+Its JSON description looks like:
+
+>  
+```json
+{
+  "name": "Foo",
+  "sizeof": 16,
+  "members": {
+    "member1": {"offset": 0,"sizeof": 4,"signature": "i"},
+    "member2": {"offset": 4,"sizeof": 4,"signature": "p"},
+    "member3": {"offset": 8,"sizeof": 8,"signature": "j"}
+  }
+}
+```
+
+These data _must_ match up with the C-side definition of the struct
+(if any). See [Appendix G][appendix-g] for one way to easily generate
+these from C code.
+
+Each entry in the `members` object maps the member's name to
+its low-level layout:
+
+- `offset`: the byte offset from the start of the struct, as reported
+  by C's `offsetof()` feature.
+- `sizeof`: as reported by C's `sizeof()`.
+- `signature`: described below.
+- `readOnly`: optional. If set to true, the binding layer will
+  throw if JS code tries to set that property.
+
+The order of the `members` entries is not important: their memory
+layout is determined by their `offset` and `sizeof` members. The
+`name` property is technically optional, but one of the steps in the
+binding process requires that either it be passed an explicit name or
+there be one in the struct description. The names of the `members`
+entries need not match their C counterparts. Project conventions may
+call for giving them different names in the JS side and the
+[StructBinderFactory][] can be configured to automatically add a
+prefix and/or suffix to their names.
+
+Nested structs are as-yet unsupported by this tool.
+
+Struct member "signatures" describe the data types of the members and
+are an extended variant of the format used by Emscripten's
+`addFunction()`. A signature for a non-function-pointer member, or
+function pointer member which is to be modelled as an opaque pointer,
+is a single letter. A signature for a function pointer may also be
+modelled as a series of letters describing the call signature. The
+supported letters are:
+
+- **`v`** = `void` (only used as return type for function pointer members)
+- **`i`** = `int32` (4 bytes)
+- **`j`** = `int64` (8 bytes) is only really usable if this code is built
+  with BigInt support (e.g. using the Emscripten `-sWASM_BIGINT` build
+  flag). Without that, this API may throw when encountering the `j`
+  signature entry.
+- **`f`** = `float` (4 bytes)
+- **`d`** = `double` (8 bytes)
+- **`c`** = `int8` (1 byte) char - see notes below!
+- **`C`** = `uint8` (1 byte) unsigned char - see notes below!
+- **`p`** = `int32` (see notes below!)
+- **`P`** = Like `p` but with extra handling. Described below.
+- **`s`** = like `int32` but is a _hint_ that it's a pointer to a
+  string so that _some_ (very limited) contexts may treat it as such,
+  noting that such algorithms must, for lack of information to the
+  contrary, assume both that the encoding is UTF-8 and that the
+  pointer's member is NUL-terminated. If that is _not_ the case for a
+  given string member, do not use `s`: use `i` or `p` instead and do
+  any string handling yourself.
+
+Noting that:
+
+- **All of these types are numeric**. Attempting to set any
+  struct-bound property to a non-numeric value will trigger an
+  exception except in cases explicitly noted otherwise.
+- **"Char" types**: WASM does not define an `int8` type, nor does it
+  distinguish between signed and unsigned. This API treats `c` as
+  `int8` and `C` as `uint8` for purposes of getting and setting values
+  when using the `DataView` class. It is _not_ recommended that client
+  code use these types in new WASM-capable code, but they were added
+  for the sake of binding some immutable legacy code to WASM.
+
+> Sidebar: Emscripten's public docs do not mention `p`, but their
+generated code includes `p` as an alias for `i`, presumably to mean
+"pointer". Though `i` is legal for pointer types in the signature, `p`
+is more descriptive, so this framework encourages the use of `p` for
+pointer-type members. Using `p` for pointers also helps future-proof
+the signatures against the eventuality that WASM eventually supports
+64-bit pointers. Note that sometimes `p` really means
+pointer-to-pointer, but the Emscripten JS/WASM glue does not offer
+that level of expressiveness in these signatures. We simply have to be
+aware of when we need to deal with pointers and pointers-to-pointers
+in JS code.
+
+> Trivia: this API treates `p` as distinctly different from `i` in
+some contexts, so its use is encouraged for pointer types.
+
+Signatures in the form `x(...)` denote function-pointer members and
+`x` denotes non-function members. Functions with no arguments use the
+form `x()`. For function-type signatures, the strings are formulated
+such that they can be passed to Emscripten's `addFunction()` after
+stripping out the `(` and `)` characters. For good measure, to match
+the public Emscripten docs, `p`, `c`, and `C`, should also be replaced
+with `i`. In JavaScript that might look like:
+
+>  
+```
+signature.replace(/[^vipPsjfdcC]/g,'').replace(/[pPscC]/g,'i');
+```
+
+<a name='step-2-pvsp'></a>
+### `P` vs `p` in Method Signatures
+
+*This support is experimental and subject to change.*
+
+The method signature letter `p` means "pointer," which, in WASM, means
+"integer." `p` is treated as an integer for most contexts, while still
+also being a separate type (analog to how pointers in C are just a
+special use of unsigned numbers). A capital `P` changes the semantics
+of plain member pointers (but not, as of this writing, function
+pointer members) as follows:
+
+- When a `P`-type member is **set** via `myStruct.x=y`, if
+  [`(y instanceof StructType)`][StructType] then the value of `y.pointer` is
+  stored in `myStruct.x`. If `y` is neither a number nor
+  a [StructType][], an exception is triggered (regardless of whether
+  `p` or `P` is used).
+
+
+<a name='step-3'></a>
+Step 3: Binding the Struct
+------------------------------------------------------------
+
+We can now use the results of steps 1 and 2:
+
+>  
+```javascript
+const MyStruct = MyBinder(myStructDescription);
+```
+
+That creates a new constructor function, `MyStruct`, which can be used
+to instantiate new instances. The binder will throw if it encounters
+any problems.
+
+That's all there is to it.
+
+> Sidebar: that function may modify the struct description object
+and/or its sub-objects, or may even replace sub-objects, in order to
+simplify certain later operations. If that is not desired, then feed
+it a copy of the original, e.g. by passing it
+`JSON.parse(JSON.stringify(structDefinition))`.
+
+<a name='step-4'></a>
+Step 4: Creating, Using, and Destroying Struct Instances
+------------------------------------------------------------
+
+Now that we have our constructor...
+
+>  
+```javascript
+const my = new MyStruct();
+```
+
+It is important to understand that creating a new instance allocates
+memory on the WASM heap. We must not simply rely on garbage collection
+to clean up the instances because doing so will not free up the WASM
+heap memory. The correct way to free up that memory is to use the
+object's `dispose()` method.
+
+The following usage pattern offers one way to easily ensure proper
+cleanup of struct instances:
+
+>  
+```javascript
+const my = new MyStruct();
+try {
+  console.log(my.member1, my.member2, my.member3);
+  my.member1 = 12;
+  assert(12 === my.member1);
+  /* ^^^ it may seem silly to test that, but recall that assigning that
+     property encodes the value into a byte array in heap memory, not
+     a normal JS property. Similarly, fetching the property decodes it
+     from the byte array. */
+  // Pass the struct to C code which takes a MyStruct pointer:
+  aCFunction( my.pointer );
+} finally {
+  my.dispose();
+}
+```
+
+> Sidebar: the `finally` block will be run no matter how the `try`
+exits, whether it runs to completion, propagates an exception, or uses
+flow-control keywords like `return` or `break`. It is perfectly legal
+to use `try`/`finally` without a `catch`, and doing so is an ideal
+match for the memory management requirements of Jaccwaby-bound struct
+instances.
+
+It is often useful to wrap an existing instance of a C-side struct
+without taking over ownership of its memory. That can be achieved by
+simply passing a pointer to the constructor. For example:
+
+```js
+const m = new MyStruct( functionReturningASharedPtr() );
+// calling m.dispose() will _not_ free the wrapped C-side instance
+// but will trigger any ondispose handler.
+```
+
+Now that we have struct instances, there are a number of things we
+can do with them, as covered in the rest of this document.
+
+
+<a name='api'></a>
+API Reference
+============================================================
+
+<a name='api-binderfactory'></a>
+API: Binder Factory
+------------------------------------------------------------
+
+This is the top-most function of the API, from which all other
+functions and types are generated. The binder factory's signature is:
+
+>  
+```
+Function StructBinderFactory(object configOptions);
+```
+
+It returns a function which these docs refer to as a [StructBinder][]
+(covered in the next section). It throws on error.
+
+The binder factory supports the following options in its
+configuration object argument:
+
+
+- `heap`  
+  Must be either a `WebAssembly.Memory` instance representing the WASM
+  heap memory OR a function which returns an Int8Array or Uint8Array
+  view of the WASM heap. In the latter case the function should, if
+  appropriate for the environment, account for the heap being able to
+  grow. Jaccwabyt uses this property in such a way that it "should" be
+  okay for the WASM heap to grow at runtime (that case is, however,
+  untested).
+
+- `alloc`  
+  Must be a function semantically compatible with Emscripten's
+  `Module._malloc()`. That is, it is passed the number of bytes to
+  allocate and it returns a pointer. On allocation failure it may
+  either return 0 or throw an exception. This API will throw an
+  exception if allocation fails or will propagate whatever exception
+  the allocator throws. The allocator _must_ use the same heap as the
+  `heap` config option.
+
+- `dealloc`  
+  Must be a function semantically compatible with Emscripten's
+  `Module._free()`. That is, it takes a pointer returned from
+  `alloc()` and releases that memory. It must never throw and must
+  accept a value of 0/null to mean "do nothing" (noting that 0 is
+  _technically_ a legal memory address in WASM, but that seems like a
+  design flaw).
+
+- `bigIntEnabled` (bool=true if BigInt64Array is available, else false)  
+  If true, the WASM bits this code is used with must have been
+  compiled with int64 support (e.g. using Emscripten's `-sWASM_BIGINT`
+  flag). If that's not the case, this flag should be set to false. If
+  it's enabled, BigInt support is assumed to work and certain extra
+  features are enabled. Trying to use features which requires BigInt
+  when it is disabled (e.g. using 64-bit integer types) will trigger
+  an exception.
+
+- `memberPrefix` and `memberSuffix` (string="")  
+  If set, struct-defined properties get bound to JS with this string
+  as a prefix resp. suffix. This can be used to avoid symbol name
+  collisions between the struct-side members and the JS-side ones
+  and/or to make more explicit which object-level properties belong to
+  the struct mapping and which to the JS side. This does not modify
+  the values in the struct description objects, just the property
+  names through which they are accessed via property access operations
+  and the various a [StructInstance][] APIs (noting that the latter
+  tend to permit both the original names and the names as modified by
+  these settings).
+
+- `log`  
+  Optional function used for debugging output. By default
+  `console.log` is used but by default no debug output is generated.
+  This API assumes that the function will space-separate each argument
+  (like `console.log` does). See [Appendix D](#appendix-d) for info
+  about enabling debugging output.
+
+
+<a name='api-structbinder'></a>
+API: Struct Binder
+------------------------------------------------------------
+
+Struct Binders are factories which are created by the
+[StructBinderFactory][].  A given Struct Binder can process any number
+of distinct structs. In a typical setup, an app will have ony one
+shared Binder Factory and one Struct Binder. Struct Binders which are
+created via different [StructBinderFactory][] calls are unrelated to each
+other, sharing no state except, perhaps, indirectly via
+[StructBinderFactory][] configuration (e.g. the memory heap).
+
+These factories have two call signatures:
+
+>  
+```javascript
+Function StructBinder([string structName,] object structDescription)
+```
+
+If the struct description argument has a `name` property then the name
+argument is optional, otherwise it is required.
+
+The returned object is a constructor for instances of the struct
+described by its argument(s), each of which derives from
+a separate [StructType][] instance.
+
+The Struct Binder has the following members:
+
+- `allocCString(str)`  
+  Allocates a new UTF-8-encoded, NUL-terminated copy of the given JS
+  string and returns its address relative to `config.heap()`. If
+  allocation returns 0 this function throws. Ownership of the memory
+  is transfered to the caller, who must eventually pass it to the
+  configured `config.dealloc()` function.
+
+- `config`  
+  The configuration object passed to the [StructBinderFactory][],
+  primarily for accessing the memory (de)allocator and memory. Modifying
+  any of its "significant" configuration values may have undefined
+  results.
+
+<a name='api-structtype'></a>
+API: Struct Type
+------------------------------------------------------------
+
+The StructType class is a property of the [StructBinder][] function.
+
+Each constructor created by a [StructBinder][] inherits from _its own
+instance_ of the StructType class, which contains state specific to
+that struct type (e.g. the struct name and description metadata).
+StructTypes which are created via different [StructBinder][] instances
+are unrelated to each other, sharing no state except [StructBinderFactory][]
+config options.
+
+The StructType constructor cannot be called from client code. It is
+only called by the [StructBinder][]-generated
+[constructors][StructCtors]. The `StructBinder.StructType` object
+has the following "static" properties (^Which are accessible from
+individual instances via `theInstance.constructor`.):
+
+- `addOnDispose(...value)`\  
+  If this object has no `ondispose` property, this function creates it
+  as an array and pushes the given value(s) onto it. If the object has
+  a function-typed `ondispose` property, this call replaces it with an
+  array and moves that function into the array. In all other cases,
+  `ondispose` is assumed to be an array and the argument(s) is/are
+  appended to it. Returns `this`.
+
+- `allocCString(str)`  
+  Identical to the [StructBinder][] method of the same name.
+
+- `hasExternalPointer(object)`  
+  Returns true if the given object's `pointer` member refers to an
+  "external" object. That is the case when a pointer is passed to a
+  [struct's constructor][StructCtors]. If true, the memory is owned by
+  someone other than the object and must outlive the object.
+
+- `isA(value)`  
+  Returns true if its argument is a StructType instance _from the same
+  [StructBinder][]_ as this StructType.
+
+- `memberKey(string)`  
+  Returns the given string wrapped in the configured `memberPrefix`
+  and `memberSuffix` values. e.g. if passed `"x"` and `memberPrefix`
+  is `"$"` then it returns `"$x"`. This does not verify that the
+  property is actually a struct a member, it simply transforms the
+  given string.  TODO(?): add a 2nd parameter indicating whether it
+  should validate that it's a known member name.
+
+The base StructType prototype has the following members, all of which
+are inherited by [struct instances](#api-structinstance) and may only
+legally be called on concrete struct instances unless noted otherwise:
+
+- `dispose()`  
+  Frees, if appropriate, the WASM-allocated memory which is allocated
+  by the constructor. If this is not called before the JS engine
+  cleans up the object, a leak in the WASM heap memory pool will result.  
+  When `dispose()` is called, if the object has a property named `ondispose`
+  then it is treated as follows:  
+  - If it is a function, it is called with the struct object as its `this`.
+  That method must not throw - if it does, the exception will be
+  ignored.
+  - If it is an array, it may contain functions, pointers, other
+    [StructType] instances, and/or JS strings. If an entry is a
+    function, it is called as described above. If it's a number, it's
+    assumed to be a pointer and is passed to the `dealloc()` function
+    configured for the parent [StructBinder][]. If it's a
+    [StructType][] instance then its `dispose()` method is called. If
+    it's a JS string, it's assumed to be a helpful description of the
+    next entry in the list and is simply ignored. Strings are
+    supported primarily for use as debugging information.
+  - Some struct APIs will manipulate the `ondispose` member, creating
+    it as an array or converting it from a function to array as
+    needed.
+
+- `lookupMember(memberName,throwIfNotFound=true)`  
+  Given the name of a mapped struct member, it returns the member
+  description object. If not found, it either throws (if the 2nd
+  argument is true) or returns `undefined` (if the second argument is
+  false). The first argument may be either the member name as it is
+  mapped in the struct description or that same name with the
+  configured `memberPrefix` and `memberSuffix` applied, noting that
+  the lookup in the former case is faster.\  
+  This method may be called directly on the prototype, without a
+  struct instance.
+
+- `memberToJsString(memberName)`  
+  Uses `this.lookupMember(memberName,true)` to look up the given
+  member. If its signature is `s` then it is assumed to refer to a
+  NUL-terminated, UTF-8-encoded string and its memory is decoded as
+  such. If its signature is not one of those then an exception is
+  thrown.  If its address is 0, `null` is returned. See also:
+  `setMemberCString()`.
+
+- `memberIsString(memberName [,throwIfNotFound=true])`  
+  Uses `this.lookupMember(memberName,throwIfNotFound)` to look up the
+  given member. Returns the member description object if the member
+  has a signature of `s`, else returns false. If the given member is
+  not found, it throws if the 2nd argument is true, else it returns
+  false.
+
+- `memberKey(string)`  
+  Works identically to `StructBinder.StructType.memberKey()`.
+
+- `memberKeys()`  
+  Returns an array of the names of the properties of this object
+  which refer to C-side struct counterparts.
+
+- `memberSignature(memberName [,emscriptenFormat=false])`  
+  Returns the signature for a given a member property, either in this
+  framework's format or, if passed a truthy 2nd argument, in a format
+  suitable for the 2nd argument to Emscripten's `addFunction()`.
+  Throws if the first argument does not resolve to a struct-bound
+  member name. The member name is resolved using `this.lookupMember()`
+  and throws if the member is found mapped.
+
+- `memoryDump()`  
+  Returns a Uint8Array which contains the current state of this
+  object's raw memory buffer. Potentially useful for debugging, but
+  not much else. Note that the memory is necessarily, for
+  compatibility with C, written in the host platform's endianness and
+  is thus not useful as a persistent/portable serialization format.
+
+- `setMemberCString(memberName,str)`  
+  Uses `StructType.allocCString()` to allocate a new C-style string,
+  assign it to the given member, and add the new string to this
+  object's `ondispose` list for cleanup when `this.dispose()` is
+  called. This function throws if `lookupMember()` fails for the given
+  member name, if allocation of the string fails, or if the member has
+  a signature value of anything other than `s`. Returns `this`.  
+  *Achtung*: calling this repeatedly will not immediately free the
+  previous values because this code cannot know whether they are in
+  use in other places, namely C. Instead, each time this is called,
+  the prior value is retained in the `ondispose` list for cleanup when
+  the struct is disposed of. Because of the complexities and general
+  uncertainties of memory ownership and lifetime in such
+  constellations, it is recommended that the use of C-string members
+  from JS be kept to a minimum or that the relationship be one-way:
+  let C manage the strings and only fetch them from JS using, e.g.,
+  `memberToJsString()`.
+  
+
+<a name='api-structctor'></a>
+API: Struct Constructors
+------------------------------------------------------------
+
+Struct constructors (the functions returned from [StructBinder][])
+are used for, intuitively enough, creating new instances of a given
+struct type:
+
+>  
+```
+const x = new MyStruct;
+```
+
+Normally they should be passed no arguments, but they optionally
+accept a single argument: a WASM heap pointer address of memory
+which the object will use for storage. It does _not_ take over
+ownership of that memory and that memory must be valid at
+for least as long as this struct instance. This is used, for example,
+to proxy static/shared C-side instances:
+
+>  
+```
+const x = new MyStruct( someCFuncWhichReturnsAMyStructPointer() );
+...
+x.dispose(); // does NOT free the memory
+```
+
+The JS-side construct does not own the memory in that case and has no
+way of knowing when the C-side struct is destroyed. Results are
+specifically undefined if the JS-side struct is used after the C-side
+struct's member is freed.
+
+> Potential TODO: add a way of passing ownership of the C-side struct
+to the JS-side object. e.g. maybe simply pass `true` as the second
+argument to tell the constructor to take over ownership. Currently the
+pointer can be taken over using something like
+`myStruct.ondispose=[myStruct.pointer]` immediately after creation.
+
+These constructors have the following "static" members:
+
+- `isA(value)`  
+  Returns true if its argument was created by this constructor.
+
+- `memberKey(string)`  
+  Works exactly as documented for [StructType][].
+
+- `memberKeys(string)`  
+  Works exactly as documented for [StructType][].
+
+- `structInfo`  
+  The structure description passed to [StructBinder][] when this
+  constructor was generated.
+
+- `structName`  
+  The structure name passed to [StructBinder][] when this constructor
+  was generated.
+  
+
+<a name='api-structprototype'></a>
+API: Struct Prototypes
+------------------------------------------------------------
+
+The prototypes of structs created via [the constructors described in
+the previous section][StructCtors] are each a struct-type-specific
+instance of [StructType][] and add the following struct-type-specific
+properties to the mix:
+
+- `structInfo`  
+  The struct description metadata, as it was given to the
+  [StructBinder][] which created this class.
+
+- `structName`  
+  The name of the struct, as it was given to the [StructBinder][] which
+  created this class.
+
+<a name='api-structinstance'></a>
+API: Struct Instances
+------------------------------------------------------------------------
+
+Instances of structs created via [the constructors described
+above][StructCtors] each have the following instance-specific state in
+common:
+
+- `pointer`  
+  A read-only numeric property which is the "pointer" returned by the
+  configured allocator when this object is constructed. After
+  `dispose()` (inherited from [StructType][]) is called, this property
+  has the `undefined` value. When calling C-side code which takes a
+  pointer to a struct of this type, simply pass it `myStruct.pointer`.
+
+<a name='appendices'></a>
+Appendices
+============================================================
+
+<a name='appendix-a'></a>
+Appendix A: Limitations, TODOs, and Non-TODOs
+------------------------------------------------------------
+
+- This library only supports the basic set of member types supported
+  by WASM: numbers (which includes pointers). Nested structs are not
+  handled except that a member may be a _pointer_ to such a
+  struct. Whether or not it ever will depends entirely on whether its
+  developer ever needs that support. Conversion of strings between
+  JS and C requires infrastructure specific to each WASM environment
+  and is not directly supported by this library.
+
+- Binding functions to struct instances, such that C can see and call
+  JS-defined functions, is not as transparent as it really could be,
+  due to [shortcomings in the Emscripten
+  `addFunction()`/`removeFunction()`
+  interfaces](https://github.com/emscripten-core/emscripten/issues/17323). Until
+  a replacement for that API can be written, this support will be
+  quite limited. It _is_ possible to bind a JS-defined function to a
+  C-side function pointer and call that function from C. What's
+  missing is easier-to-use/more transparent support for doing so.
+  - In the meantime, a [standalone
+  subproject](/file/common/whwasmutil.js) of Jaccwabyt provides such a
+  binding mechanism, but integrating it directly with Jaccwabyt would
+  not only more than double its size but somehow feels inappropriate, so
+  experimentation is in order for how to offer that capability via
+  completely optional [StructBinderFactory][] config options.
+
+- It "might be interesting" to move access of the C-bound members into
+  a sub-object. e.g., from JS they might be accessed via
+  `myStructInstance.s.structMember`. The main advantage is that it would
+  eliminate any potential confusion about which members are part of
+  the C struct and which exist purely in JS. "The problem" with that
+  is that it requires internally mapping the `s` member back to the
+  object which contains it, which makes the whole thing more costly
+  and adds one more moving part which can break. Even so, it's
+  something to try out one rainy day. Maybe even make it optional and
+  make the `s` name configurable via the [StructBinderFactory][]
+  options. (Over-engineering is an arguably bad habit of mine.)
+
+- It "might be interesting" to offer (de)serialization support. It
+  would be very limited, e.g. we can't serialize arbitrary pointers in
+  any meaningful way, but "might" be useful for structs which contain
+  only numeric or C-string state. As it is, it's easy enough for
+  client code to write wrappers for that and handle the members in
+  ways appropriate to their apps. Any impl provided in this library
+  would have the shortcoming that it may inadvertently serialize
+  pointers (since they're just integers), resulting in potential chaos
+  after deserialization. Perhaps the struct description can be
+  extended to tag specific members as serializable and how to
+  serialize them.
+
+<a name='appendix-d'></a>
+Appendix D: Debug Info
+------------------------------------------------------------
+
+The [StructBinderFactory][], [StructBinder][], and [StructType][] classes
+all have the following "unsupported" method intended primarily
+to assist in their own development, as opposed to being for use in
+client code:
+
+- `debugFlags(flags)` (integer)  
+  An "unsupported" debugging option which may change or be removed at
+  any time. Its argument is a set of flags to enable/disable certain
+  debug/tracing output for property accessors: 0x01 for getters, 0x02
+  for setters, 0x04 for allocations, 0x08 for deallocations. Pass 0 to
+  disable all flags and pass a negative value to _completely_ clear
+  all flags. The latter has the side effect of telling the flags to be
+  inherited from the next-higher-up class in the hierarchy, with
+  [StructBinderFactory][] being top-most, followed by [StructBinder][], then
+  [StructType][].
+
+
+<a name='appendix-g'></a>
+Appendix G: Generating Struct Descriptions From C
+------------------------------------------------------------
+
+Struct definitions are _ideally_ generated from WASM-compiled C, as
+opposed to simply guessing the sizeofs and offsets, so that the sizeof
+and offset information can be collected using C's `sizeof()` and
+`offsetof()` features (noting that struct padding may impact offsets
+in ways which might not be immediately obvious, so writing them by
+hand is _most certainly not recommended_).
+
+How exactly the desciption is generated is necessarily
+project-dependent. It's tempting say, "oh, that's easy! We'll just
+write it by hand!" but that would be folly. The struct sizes and byte
+offsets into the struct _must_ be precisely how C-side code sees the
+struct or the runtime results are completely undefined.
+
+The approach used in developing and testing _this_ software is...
+
+Below is a complete copy/pastable example of how we can use a small
+set of macros to generate struct descriptions from C99 or later into
+static string memory. Simply add such a file to your WASM build,
+arrange for its function to be exported[^export-func], and call it
+from JS (noting that it requires environment-specific JS glue to
+convert the returned pointer to a JS-side string). Use `JSON.parse()`
+to process it, then feed the included struct descriptions into the
+binder factory at your leisure.
+
+------------------------------------------------------------
+
+```c
+#include <string.h> /* memset() */
+#include <stddef.h> /* offsetof() */
+#include <stdio.h>  /* snprintf() */
+#include <stdint.h> /* int64_t */
+#include <assert.h>
+
+struct ExampleStruct {
+  int v4;
+  void * ppV;
+  int64_t v8;
+  void (*xFunc)(void*);
+};
+typedef struct ExampleStruct ExampleStruct;
+
+const char * wasm__ctype_json(void){
+  static char strBuf[512 * 8] = {0}
+    /* Static buffer which must be sized large enough for
+       our JSON. The string-generation macros try very
+       hard to assert() if this buffer is too small. */;
+  int n = 0, structCount = 0 /* counters for the macros */;
+  char * pos = &strBuf[1]
+    /* Write-position cursor. Skip the first byte for now to help
+       protect against a small race condition */;
+  char const * const zEnd = pos + sizeof(strBuf)
+    /* one-past-the-end cursor (virtual EOF) */;
+  if(strBuf[0]) return strBuf; // Was set up in a previous call.
+
+  ////////////////////////////////////////////////////////////////////
+  // First we need to build up our macro framework...
+
+  ////////////////////////////////////////////////////////////////////
+  // Core output-generating macros...
+#define lenCheck assert(pos < zEnd - 100)
+#define outf(format,...) \
+  pos += snprintf(pos, ((size_t)(zEnd - pos)), format, __VA_ARGS__); \
+  lenCheck
+#define out(TXT) outf("%s",TXT)
+#define CloseBrace(LEVEL) \
+  assert(LEVEL<5); memset(pos, '}', LEVEL); pos+=LEVEL; lenCheck
+
+  ////////////////////////////////////////////////////////////////////
+  // Macros for emiting StructBinders...
+#define StructBinder__(TYPE)                 \
+  n = 0;                                     \
+  outf("%s{", (structCount++ ? ", " : ""));  \
+  out("\"name\": \"" # TYPE "\",");          \
+  outf("\"sizeof\": %d", (int)sizeof(TYPE)); \
+  out(",\"members\": {");
+#define StructBinder_(T) StructBinder__(T)
+// ^^^ extra indirection needed to expand CurrentStruct
+#define StructBinder StructBinder_(CurrentStruct)
+#define _StructBinder CloseBrace(2)
+#define M(MEMBER,SIG)                                         \
+  outf("%s\"%s\": "                                           \
+       "{\"offset\":%d,\"sizeof\": %d,\"signature\":\"%s\"}", \
+       (n++ ? ", " : ""), #MEMBER,                            \
+       (int)offsetof(CurrentStruct,MEMBER),                   \
+       (int)sizeof(((CurrentStruct*)0)->MEMBER),              \
+       SIG)
+  // End of macros.
+  ////////////////////////////////////////////////////////////////////
+
+  ////////////////////////////////////////////////////////////////////
+  // With that out of the way, we can do what we came here to do.
+  out("\"structs\": ["); {
+
+// For each struct description, do...
+#define CurrentStruct ExampleStruct
+    StructBinder {
+      M(v4,"i");
+      M(ppV,"p");
+      M(v8,"j");
+      M(xFunc,"v(p)");
+    } _StructBinder;
+#undef CurrentStruct
+
+  } out( "]"/*structs*/);
+  ////////////////////////////////////////////////////////////////////
+  // Done! Finalize the output...
+  out("}"/*top-level wrapper*/);
+  *pos = 0;
+  strBuf[0] = '{'/*end of the race-condition workaround*/;
+  return strBuf;
+
+// If this file will ever be concatenated or #included with others,
+// it's good practice to clean up our macros:
+#undef StructBinder
+#undef StructBinder_
+#undef StructBinder__
+#undef M
+#undef _StructBinder
+#undef CloseBrace
+#undef out
+#undef outf
+#undef lenCheck
+}
+```
+
+------------------------------------------------------------
+
+<style>
+div.content {
+  counter-reset: h1 -1;
+}
+div.content h1, div.content h2, div.content h3 {
+  border-radius: 0.25em;
+  border-bottom: 1px solid #70707070;
+}
+div.content h1 {
+  counter-reset: h2;
+}
+div.content h1::before, div.content h2::before, div.content h3::before {
+  background-color: #a5a5a570;
+  margin-right: 0.5em;
+  border-radius: 0.25em;
+}
+div.content h1::before {
+  counter-increment: h1;
+  content: counter(h1) ;
+  padding: 0 0.5em;
+  border-radius: 0.25em;
+}
+div.content h2::before {
+  counter-increment: h2;
+  content: counter(h1) "." counter(h2);
+  padding: 0 0.5em 0 1.75em;
+  border-radius: 0.25em;
+}
+div.content h2 {
+  counter-reset: h3;
+}
+div.content h3::before {
+  counter-increment: h3;
+  content: counter(h1) "." counter(h2) "." counter(h3);
+  padding: 0 0.5em 0 2.5em;
+}
+div.content h3 {border-left-width: 2.5em}
+</style>
+
+[sqlite3]: https://sqlite.org
+[emscripten]: https://emscripten.org
+[sgb]: https://wanderinghorse.net/home/stephan/
+[appendix-g]: #appendix-g
+[StructBinderFactory]: #api-binderfactory
+[StructCtors]: #api-structctor
+[StructType]: #api-structtype
+[StructBinder]: #api-structbinder
+[StructInstance]: #api-structinstance
+[^export-func]: In Emscripten, add its name, prefixed with `_`, to the
+  project's `EXPORT_FUNCTIONS` list.
+[BigInt64Array]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/BigInt64Array
+[TextDecoder]: https://developer.mozilla.org/en-US/docs/Web/API/TextDecoder
+[TextEncoder]: https://developer.mozilla.org/en-US/docs/Web/API/TextEncoder
+[MDN]: https://developer.mozilla.org/docs/Web/API
diff --git a/ext/wasm/mkwasmbuilds.c b/ext/wasm/mkwasmbuilds.c
new file mode 100644
index 0000000000000000000000000000000000000000..29b6cafae9b21976a9630fbd360369f1637e135e
--- /dev/null
+++ b/ext/wasm/mkwasmbuilds.c
@@ -0,0 +1,284 @@
+/*
+** 2024-09-23
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** This app's single purpose is to emit parts of the Makefile code for
+** building sqlite3's WASM build. The main motivation is to generate
+** code which "can" be created via GNU Make's eval command but is
+** highly illegible when constructed that way. Attempts to write this
+** app in Bash and TCL have suffered from the problem that both
+** require escaping $ symbols, making the resulting script code as
+** illegible as the eval spaghetti we want to get away from. Writing
+** it in C is, somewhat surprisingly, _slightly_ less illegible than
+** writing it in bash, tcl, or native Make code.
+**
+** The emitted makefile code is not standalone - it depends on
+** variables and $(call)able functions from the main makefile.
+**
+*/
+
+#undef NDEBUG
+#define DEBUG 1
+#include <assert.h>
+#include <stdio.h>
+#include <string.h>
+
+#define pf printf
+#define ps puts
+/* Very common printf() args combo. */
+#define zNM zName, zMode
+
+/*
+** Valid names for the zName arguments.
+*/
+#define JS_BUILD_NAMES sqlite3 sqlite3-wasmfs
+/*
+** Valid names for the zMode arguments of the "sqlite3" build. For the
+** "sqlite3-wasmfs" build, only "esm" (ES6 Module) is legal.
+*/
+#define JS_BUILD_MODES vanilla esm bundler-friendly node
+static const char * zBanner =
+  "\n########################################################################\n";
+
+/*
+** Emits common vars needed by the rest of the emitted code (but not
+** needed by makefile code outside of these generated pieces).
+*/
+static void mk_prologue(void){
+  pf("%s", zBanner);
+  ps("# extern-post-js* and extern-pre-js* are files for use with");
+  ps("# Emscripten's --extern-pre-js and --extern-post-js flags.");
+  ps("extern-pre-js.js := $(dir.api)/extern-pre-js.js");
+  ps("extern-post-js.js.in := $(dir.api)/extern-post-js.c-pp.js");
+  ps("# Emscripten flags for --[extern-][pre|post]-js=... for the");
+  ps("# various builds.");
+  ps("pre-post-common.flags := --extern-pre-js=$(sqlite3-license-version.js)");
+  ps("# pre-post-jses.deps.* = a list of dependencies for the");
+  ps("# --[extern-][pre/post]-js files.");
+  ps("pre-post-jses.deps.common := $(extern-pre-js.js) $(sqlite3-license-version.js)");
+}
+
+/*
+** Emits makefile code for setting up values for the --pre-js=FILE,
+** --post-js=FILE, and --extern-post-js=FILE emcc flags, as well as
+** populating those files.
+*/
+static void mk_pre_post(const char *zName  /* build name */,
+                        const char *zMode  /* build mode */,
+                        const char *zCmppD /* optional -D flags for c-pp for the
+                                           ** --pre/--post-js files. */){
+  pf("%s# Begin --pre/--post flags for %s-%s\n", zBanner, zName, zMode);
+  pf("c-pp.D.%s-%s := %s\n", zNM, zCmppD ? zCmppD : "");
+  pf("pre-post-%s-%s.flags ?=\n", zNM);
+
+  /* --pre-js=... */
+  pf("pre-js.js.%s-%s := $(dir.tmp)/pre-js.%s-%s.js\n",
+     zNM, zNM);
+  pf("$(pre-js.js.%s-%s): $(MAKEFILE)\n", zNM);
+#if 1
+  pf("$(eval $(call C-PP.FILTER,$(pre-js.js.in),$(pre-js.js.%s-%s),"
+     "$(c-pp.D.%s-%s)))\n", zNM, zNM);
+#else
+  /* This part is needed if/when we re-enable the custom
+  ** Module.instantiateModule() impl in api/pre-js.c-pp.js. */
+  pf("pre-js.js.%s-%s.intermediary := $(dir.tmp)/pre-js.%s-%s.intermediary.js\n",
+     zNM, zNM);
+  pf("$(eval $(call C-PP.FILTER,$(pre-js.js.in),$(pre-js.js.%s-%s.intermediary),"
+     "$(c-pp.D.%s-%s) -Dcustom-Module.instantiateModule))\n", zNM, zNM);
+  pf("$(pre-js.js.%s-%s): $(pre-js.js.%s-%s.intermediary)\n", zNM, zNM);
+  pf("\tcp $(pre-js.js.%s-%s.intermediary) $@\n", zNM);
+
+  /* Amend $(pre-js.js.zName-zMode) for all targets except the plain
+  ** "sqlite3" build... */
+  if( 0!=strcmp("sqlite3-wasmfs", zName)
+      && 0!=strcmp("sqlite3", zName) ){
+    pf("\t@echo 'Module[xNameOfInstantiateWasm].uri = "
+       "\"%s.wasm\";' >> $@\n", zName);
+  }
+#endif
+
+  /* --post-js=... */
+  pf("post-js.js.%s-%s := $(dir.tmp)/post-js.%s-%s.js\n", zNM, zNM);
+  pf("$(eval $(call C-PP.FILTER,$(post-js.js.in),"
+     "$(post-js.js.%s-%s),$(c-pp.D.%s-%s)))\n", zNM, zNM);
+
+  /* --extern-post-js=... */
+  pf("extern-post-js.js.%s-%s := $(dir.tmp)/extern-post-js.%s-%s.js\n", zNM, zNM);
+  pf("$(eval $(call C-PP.FILTER,$(extern-post-js.js.in),$(extern-post-js.js.%s-%s),"
+     "$(c-pp.D.%s-%s)))\n", zNM, zNM);
+
+  /* Combine flags for use with emcc... */
+  pf("pre-post-common.flags.%s-%s := "
+     "$(pre-post-common.flags) "
+     "--post-js=$(post-js.js.%s-%s) "
+     "--extern-post-js=$(extern-post-js.js.%s-%s)\n", zNM, zNM, zNM);
+
+  pf("pre-post-%s-%s.flags += $(pre-post-common.flags.%s-%s) "
+     "--pre-js=$(pre-js.js.%s-%s)\n", zNM, zNM, zNM);
+
+  /* Set up deps... */
+  pf("pre-post-jses.%s-%s.deps := $(pre-post-jses.deps.common) "
+     "$(post-js.js.%s-%s) $(extern-post-js.js.%s-%s)\n",
+     zNM, zNM, zNM);
+  pf("pre-post-%s-%s.deps := $(pre-post-jses.%s-%s.deps) $(dir.tmp)/pre-js.%s-%s.js\n",
+     zNM, zNM, zNM);
+  pf("# End --pre/--post flags for %s-%s%s", zName, zMode, zBanner);
+}
+
+/*
+** Emits rules for the fiddle builds.
+**
+*/
+static void mk_fiddle(){
+  int i = 0;
+
+  mk_pre_post("fiddle-module","vanilla", 0);
+  for( ; i < 2; ++i ){
+    const char *zTail = i ? ".debug" : "";
+    const char *zDir = i ? "$(dir.fiddle-debug)" : "$(dir.fiddle)";
+
+    pf("%s# Begin fiddle%s\n", zBanner, zTail);
+    pf("fiddle-module.js%s := %s/fiddle-module.js\n", zTail, zDir);
+    pf("fiddle-module.wasm%s := "
+       "$(subst .js,.wasm,$(fiddle-module.js%s))\n", zTail, zTail);
+    pf("$(fiddle-module.js%s):%s $(MAKEFILE) $(MAKEFILE.fiddle) "
+       "$(EXPORTED_FUNCTIONS.fiddle) "
+       "$(fiddle.cses) $(pre-post-fiddle-module-vanilla.deps) "
+       "$(SOAP.js)\n",
+       zTail, (i ? " $(fiddle-module.js)" : ""));
+    if( 1==i ){/*fiddle.debug*/
+      pf("	@test -d \"$(dir $@)\" || mkdir -p \"$(dir $@)\"\n");
+    }
+    pf("	$(emcc.bin) -o $@ $(fiddle.emcc-flags%s) "
+       "$(pre-post-fiddle-module-vanilla.flags) $(fiddle.cses)\n",
+       zTail);
+    pf("	$(maybe-wasm-strip) $(fiddle-module.wasm%s)\n", zTail);
+    pf("	@cp -p $(SOAP.js) $(dir $@)\n");
+    if( 1==i ){/*fiddle.debug*/
+      pf("	cp -p $(dir.fiddle)/index.html "
+         "$(dir.fiddle)/fiddle.js "
+         "$(dir.fiddle)/fiddle-worker.js "
+         "$(dir $@)\n");
+    }
+    pf("	@for i in %s/*.*js %s/*.html %s/*.wasm; do \\\n"
+       "		test -f $${i} || continue;             \\\n"
+       "		gzip < $${i} > $${i}.gz; \\\n"
+       "	done\n", zDir, zDir, zDir);
+    if( 0==i ){
+      ps("fiddle: $(fiddle-module.js)");
+    }else{
+      ps("fiddle-debug: $(fiddle-module-debug.js)");
+    }
+    pf("# End fiddle%s%s", zTail, zBanner);
+  }
+}
+
+/*
+** Emits makefile code for one build of the library, primarily defined
+** by the combination of zName and zMode, each of which must be values
+** from JS_BUILD_NAMES resp. JS_BUILD_MODES.
+*/
+static void mk_lib_mode(const char *zName     /* build name */,
+                        const char *zMode     /* build mode */,
+                        int bIsEsm            /* true only for ESM build */,
+                        const char *zApiJsOut /* name of generated sqlite3-api.js/.mjs */,
+                        const char *zJsOut    /* name of generated sqlite3.js/.mjs */,
+                        const char *zCmppD    /* extra -D flags for c-pp */,
+                        const char *zEmcc     /* extra flags for emcc */){
+  assert( zName );
+  assert( zMode );
+  assert( zApiJsOut );
+  assert( zJsOut );
+  if( !zCmppD ) zCmppD = "";
+  if( !zEmcc ) zEmcc = "";
+
+  pf("%s# Begin build [%s-%s]\n", zBanner, zNM);
+  pf("ifneq (1,$(MAKING_CLEAN))\n");
+  pf("$(info Setting up build [%s-%s]: %s)\n", zNM, zJsOut);
+  mk_pre_post(zNM, zCmppD);
+  pf("\nemcc.flags.%s.%s ?=\n", zNM);
+  if( zEmcc[0] ){
+    pf("emcc.flags.%s.%s += %s\n", zNM, zEmcc);
+  }
+  pf("$(eval $(call C-PP.FILTER, $(sqlite3-api.js.in), %s, %s))\n",
+     zApiJsOut, zCmppD);
+
+  /* target zJsOut */
+  pf("%s: %s $(MAKEFILE) $(sqlite3-wasm.cfiles) $(EXPORTED_FUNCTIONS.api) "
+     "$(pre-post-%s-%s.deps)\n",
+     zJsOut, zApiJsOut, zNM);
+  pf("\t@echo \"Building $@ ...\"\n");
+  pf("\t$(emcc.bin) -o $@ $(emcc_opt_full) $(emcc.flags) \\\n");
+  pf("\t\t$(emcc.jsflags) -sENVIRONMENT=$(emcc.environment.%s) \\\n", zMode);
+  pf("\t\t$(pre-post-%s-%s.flags) \\\n", zNM);
+  pf("\t\t$(emcc.flags.%s) $(emcc.flags.%s.%s) \\\n", zName, zNM);
+  pf("\t\t$(cflags.common) $(SQLITE_OPT) \\\n"
+     "\t\t$(cflags.%s) $(cflags.%s.%s) \\\n"
+     "\t\t$(cflags.wasm_extra_init) $(sqlite3-wasm.cfiles)\n", zName, zNM);
+  if( bIsEsm ){
+    /* TODO? Replace this CALL with the corresponding makefile code.
+    ** OTOH, we also use this $(call) in the speedtest1-wasmfs build,
+    ** which is not part of the rules emitted by this program. */
+    pf("\t@$(call SQLITE3.xJS.ESM-EXPORT-DEFAULT,1,%d)\n",
+       0==strcmp("sqlite3-wasmfs", zName) ? 1 : 0);
+  }
+  pf("\t@dotwasm=$(basename $@).wasm; \\\n"
+     "\tchmod -x $$dotwasm; \\\n"
+     "\t$(maybe-wasm-strip) $$dotwasm; \\\n");
+  /*
+  ** The above $(emcc.bin) call will write zJsOut and will create a
+  ** like-named .wasm file. That .wasm file name gets hard-coded into
+  ** zJsOut so we need to, for some cases, patch zJsOut to use the
+  ** name sqlite3.wasm instead. Note that the resulting .wasm file is
+  ** identical for all builds for which zEmcc is empty.
+  */
+  if( 0==strcmp("bundler-friendly", zMode)
+      || 0==strcmp("node", zMode) ) {
+    pf("\techo 'Patching $@ for %s.wasm...' \\\n", zName);
+    pf("\trm -f $$dotwasm; dotwasm=; \\\n"
+       "\tsed -i -e 's/%s-%s.wasm/%s.wasm/g' $@ || exit $$?; \\\n",
+       zNM, zName);
+  }
+  pf("\tls -la $$dotwasm $@\n");
+  if( 0!=strcmp("sqlite3-wasmfs", zName) ){
+    /* The sqlite3-wasmfs build is optional and needs to be invoked
+    ** conditionally using info we don't have here. */
+    pf("all: %s\n", zJsOut);
+  }
+  ps("endif\n# ^^^ !$(MAKING_CLEAN)");
+  pf("# End build [%s-%s]%s", zNM, zBanner);
+}
+
+int main(void){
+  int rc = 0;
+  pf("# What follows was GENERATED by %s. Edit at your own risk.\n", __FILE__);
+  mk_prologue();
+  mk_lib_mode("sqlite3", "vanilla", 0,
+              "$(sqlite3-api.js)", "$(sqlite3.js)", 0, 0);
+  mk_lib_mode("sqlite3", "esm", 1,
+              "$(sqlite3-api.mjs)", "$(sqlite3.mjs)",
+              "-Dtarget=es6-module", 0);
+  mk_lib_mode("sqlite3", "bundler-friendly", 1,
+              "$(sqlite3-api-bundler-friendly.mjs)", "$(sqlite3-bundler-friendly.mjs)",
+              "$(c-pp.D.sqlite3-esm) -Dtarget=es6-bundler-friendly", 0);
+  mk_lib_mode("sqlite3" , "node", 1,
+              "$(sqlite3-api-node.mjs)", "$(sqlite3-node.mjs)",
+              "$(c-pp.D.sqlite3-bundler-friendly) -Dtarget=node", 0);
+  mk_lib_mode("sqlite3-wasmfs", "esm" ,1,
+              "$(sqlite3-api-wasmfs.mjs)", "$(sqlite3-wasmfs.mjs)",
+              "$(c-pp.D.sqlite3-bundler-friendly) -Dwasmfs",
+              "-sEXPORT_ES6 -sUSE_ES6_IMPORT_META");
+
+  mk_fiddle();
+  mk_pre_post("speedtest1","vanilla", 0);
+  mk_pre_post("speedtest1-wasmfs","esm", "$(c-pp.D.sqlite3-bundler-friendly) -Dwasmfs");
+  return rc;
+}
diff --git a/ext/wasm/module-symbols.html b/ext/wasm/module-symbols.html
new file mode 100644
index 0000000000000000000000000000000000000000..c5c6bc162b891d036f079f793480c2c6438c0a65
--- /dev/null
+++ b/ext/wasm/module-symbols.html
@@ -0,0 +1,531 @@
+<!doctype html>
+<html lang="en-us">
+  <head>
+    <meta charset="utf-8">
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+    <link rel="shortcut icon" href="data:image/x-icon;," type="image/x-icon">
+    <title>sqlite3 Module Symbols</title>
+    <style>
+      body {
+          font-size: 12.5pt;
+          padding-bottom: 1em;
+      }
+      </style>
+  </head>
+  <body>
+<div class="fossil-doc" data-title="sqlite3 Module Symbols"><!-- EXTRACT_BEGIN -->
+<!--
+    The part of this doc wrapped in div.fossil-doc gets snipped out
+    from the canonical copy in the main tree (ext/wasm/module-symbols.html)
+    and added to the wasm docs repository, where it's served from
+    fossil.
+-->
+  <style>
+    .pseudolist {
+        column-count: auto;
+        column-width: 12rem;
+        column-gap: 1.5em;
+        width: 90%;
+        margin: auto;
+    }
+    .pseudolist.wide {
+        column-width: 21rem;
+    }
+    .pseudolist.wide2 {
+        column-width: 25rem;
+    }
+    .pseudolist > span {
+        font-family: monospace;
+        margin: 0.25em 0;
+        display: block;
+    }
+    .pseudolist.wrap-anywhere {
+        overflow-wrap: anywhere;
+    }
+    .warning { color: firebrick }
+    .error { color: firebrick; background-color: yellow}
+    .hidden, .initially-hidden {
+        position: absolute !important;
+        opacity: 0 !important;
+        pointer-events: none !important;
+        display: none !important;
+    }
+    h1::before, h2::before, h3::before, h4::before {
+        /* Remove automatic numbering */
+        content: "" !important;
+        background-color: transparent !important;
+        margin: 0 !important;
+        border: 0 !important;
+        padding: 0 !important;
+    }
+    .func-wasm {
+        
+    }
+    .func-wasm::after {
+        content: "WASM";
+        color: saddlebrown;
+        /* ^^^^ the color must be legible in both "bright" and "dark"
+           s    ite themes. */
+        font-size: 0.65em;
+    /* baseline-shift: super; */
+        vertical-align: super;
+    }
+  </style>
+  <p id='module-load-status'><strong>Loading WASM module...</strong>
+    If this takes "a long time" it may have failed and the browser's
+    dev console may contain hints as to why.
+  </p>
+
+  <p>
+    This page lists the SQLite3 APIs exported
+    by <code>sqlite3.wasm</code> and exposed to clients
+    by <code>sqlite3.js</code>. These lists are generated dynamically
+    by loading the JS/WASM module and introspecting it, with the following
+    caveats:
+  </p>
+
+  <ul>
+    <li>Some APIs are explicitly filtered out of these lists because
+      they are strictly for internal use within the JS/WASM APIs and
+      its own test code.
+    </li>
+    <li>This page runs in the main UI thread so cannot see features
+      which are only available in a Worker thread. If this page were
+      to function via a Worker, it would not be able to see
+      functionality only available in the main thread. Either way, it
+      would be missing certain APIs.
+    </li>
+  </ul>
+
+  <div class='initially-hidden'>
+
+    <p>This page exposes a global symbol named <code>sqlite3</code>
+      which can be inspected using the browser's dev tools.
+    </p>
+
+    <p>Jump to...</p>
+    <ul>
+      <li><a href='#sqlite3-namespace'><code>sqlite3</code> namespace</a></li>
+      <li><a href='#sqlite3-version'><code>sqlite3.version</code> object</a></li>
+      <li><a href='#sqlite3-functions'><code>sqlite3_...()</code> functions</a></li>
+      <li><a href='#sqlite3-constants'><code>SQLITE_...</code> constants</a></li>
+      <li><a href='#sqlite3.oo1'><code>sqlite3.oo1</code> namespace</a>
+        <!--ul>
+          <li><a href='#sqlite3.oo1.DB'><code>sqlite3.oo1.DB</code></a></li>
+          <li><a href='#sqlite3.oo1.Stmt'><code>sqlite3.oo1.Stmt</code></a></li>
+        </ul-->
+      </li>
+      <li><a href='#sqlite3.wasm'><code>sqlite3.wasm</code> namespace</a></li>
+      <li><a href='#sqlite3.wasm.pstack'><code>sqlite3.wasm.pstack</code> namespace</a></li>
+      <li><a href='#compile-options'>Compilation options used in this module build</a></li>
+    </ul>
+
+    <a id="sqlite3-namespace"></a>
+    <h1><code>sqlite3</code> Namespace</h1>
+    <p>
+      The <code>sqlite3</code> namespace object exposes the following...
+    </p>
+    <div id='list-namespace' class='pseudolist'></div>
+
+    <a id="sqlite3-version"></a>
+    <h1><code>sqlite3.version</code> Object</h1>
+    <p>
+      The <code>sqlite3.version</code> object exposes the following...
+    </p>
+    <div id='list-version' class='pseudolist wide wrap-anywhere'></div>
+
+    <a id="sqlite3-functions"></a>
+    <h1><code>sqlite3_...()</code> Function List</h1>
+
+    <p>The <code>sqlite3.capi</code> namespace exposes the following
+      <a href='https://sqlite.org/c3ref/funclist.html'><code>sqlite3_...()</code>
+        functions</a>...
+    </p>
+    <div id='list-functions' class='pseudolist wide'></div>
+    <p>
+      <code class='func-wasm'></code> = function is specific to the JS/WASM
+      bindings, not part of the C API.
+    </p>
+
+    <a id="sqlite3-constants"></a>
+    <h1><code>SQLITE_...</code> Constants</h1>
+
+    <p>The <code>sqlite3.capi</code> namespace exposes the following
+      <a href='https://sqlite.org/c3ref/constlist.html'><code>SQLITE_...</code>
+        constants</a>...
+    </p>
+    <div id='list-constants' class='pseudolist wide'></div>
+
+    <a id="sqlite3.oo1"></a>
+    <h1><code>sqlite3.oo1</code> Namespace</h1>
+    <p>
+      The <code>sqlite3.oo1</code> namespace exposes the following...
+    </p>
+    <div id='list-oo1' class='pseudolist'></div>
+
+    <a id="sqlite3.wasm"></a>
+    <h1><code>sqlite3.wasm</code> Namespace</h1>
+    <p>
+      The <code>sqlite3.wasm</code> namespace exposes the
+      following...
+    </p>
+    <div id='list-wasm' class='pseudolist'></div>
+
+    <a id="sqlite3.wasm.pstack"></a>
+    <h1><code>sqlite3.wasm.pstack</code> Namespace</h1>
+    <p>
+      The <code>sqlite3.wasm.pstack</code> namespace exposes the
+      following...
+    </p>
+    <div id='list-wasm-pstack' class='pseudolist'></div>
+
+    <a id="compile-options"></a>
+    <h1>Compilation Options</h1>
+    <p>
+      <code>SQLITE_...</code> compilation options used in this build
+      of <code>sqlite3.wasm</code>...
+    </p>
+    <div id='list-compile-options' class='pseudolist wide2'></div>
+
+  </div><!-- .initially-hidden -->
+  <script src="jswasm/sqlite3.js">/* This tag MUST be inside the
+  fossil-doc block so that this part can work without modification in
+  the wasm docs repo.  */</script>
+  <script>(async function(){
+    const apiLinks = Object.assign(Object.create(null),{
+        sqlite3_aggregate_context: 'www:/c3ref/aggregate_context.html',
+        sqlite3_auto_extension: 'wasm:/api-c-style.md#auto-extension',
+        sqlite3_bind_blob: 'www:/c3ref/bind_blob.html',
+        sqlite3_bind_double: 'www:/c3ref/bind_blob.html',
+        sqlite3_bind_int: 'www:/c3ref/bind_blob.html',
+        sqlite3_bind_int64: 'www:/c3ref/bind_blob.html',
+        sqlite3_bind_null: 'www:/c3ref/bind_blob.html',
+        sqlite3_bind_parameter_count: 'www:/c3ref/bind_parameter_count.html',
+        sqlite3_bind_parameter_index: 'www:/c3ref/bind_parameter_index.html',
+        sqlite3_bind_pointer: 'www:/c3ref/bind_blob.html',
+        sqlite3_bind_text: 'www:/c3ref/bind_blob.html',
+        sqlite3_busy_handler: 'www:/c3ref/busy_handler.html',
+        sqlite3_busy_timeout: 'www:/c3ref/busy_timeout.html',
+        sqlite3_cancel_auto_extension: 'wasm:/api-c-style.md#auto-extension',
+        sqlite3_changes: 'www:/c3ref/changes.html',
+        sqlite3_changes64: 'www:/c3ref/changes.html',
+        sqlite3_clear_bindings: 'www:/c3ref/clear_bindings.html',
+        sqlite3_close_v2: 'www:/c3ref/close.html',
+        sqlite3_collation_needed: 'www:/c3ref/collation_needed.html',
+        sqlite3_column_blob: 'www:/c3ref/column_blob.html',
+        sqlite3_column_bytes: 'www:/c3ref/column.html',
+        sqlite3_column_count: 'www:/c3ref/column_count.html',
+        sqlite3_column_double: 'www:/c3ref/column_blob.html',
+        sqlite3_column_int: 'www:/c3ref/column_blob.html',
+        sqlite3_column_int64: 'www:/c3ref/column_blob.html',
+        sqlite3_column_name: 'www:/c3ref/column_name.html',
+        sqlite3_column_text: 'www:/c3ref/column_blob.html',
+        sqlite3_column_type: 'www:/c3ref/column_blob.html',
+        sqlite3_column_value: 'www:/c3ref/column_blob.html',
+        sqlite3_commit_hook: 'wasm:/api-c-style.md#hook-api',
+        sqlite3_compileoption_get: 'www:/c3ref/compileoption_get.html',
+        sqlite3_compileoption_used: 'www:/c3ref/compileoption_get.html',
+        sqlite3_complete: 'www:/c3ref/complete.html',
+        sqlite3_config: 'www:/c3ref/config.html',
+        sqlite3_context_db_handle: 'www:/c3ref/context_db_handle.html',
+        sqlite3_create_collation: 'www:/c3ref/create_collation.html',
+        sqlite3_create_collation_v2: 'www:/c3ref/create_collation.html',
+        sqlite3_create_function: 'wasm:/api-c-style.md#sqlite3_create_function',
+        sqlite3_create_function_v2: 'wasm:/api-c-style.md#sqlite3_create_function',
+        sqlite3_create_module: 'www:/c3ref/create_module.html',
+        sqlite3_create_module_v2: 'www:/c3ref/create_module.html',
+        sqlite3_create_window_function: 'wasm:/api-c-style.md#sqlite3_create_function',
+        sqlite3_db_config: 'wasm:/api-c-style.md#sqlite3_db_config',
+        sqlite3_data_count: 'www:/c3ref/data_count.html',
+        sqlite3_db_filename: 'www:/c3ref/db_filename.html',
+        sqlite3_db_handle: 'www:/c3ref/db_handle.html',
+        sqlite3_db_name: 'www:/c3ref/db_name.html',
+        sqlite3_db_status: 'www:/c3ref/db_status.html',
+        sqlite3_declare_vtab: 'www:/c3ref/declare_vtab.html',
+        sqlite3_deserialize: 'wasm:/api-c-style.md#sqlite3_deserialize',
+        sqlite3_drop_modules: 'www:/c3ref/drop_modules.html',
+        sqlite3_errcode: 'www:/c3ref/errcode.html',
+        sqlite3_errmsg: 'www:/c3ref/errcode.html',
+        sqlite3_error_offset: 'www:/c3ref/error_offset.html',
+        sqlite3_errstr: 'www:/c3ref/errcode.html',
+        sqlite3_exec: 'wasm:/api-c-style.md#sqlite3_exec',
+        sqlite3_expanded_sql: 'www:/c3ref/expanded_sql.html',
+        sqlite3_extended_errcode: 'www:/c3ref/errcode.html',
+        sqlite3_extended_result_codes: 'www:/c3ref/extended_result_codes.html',
+        sqlite3_file_control: 'www:/c3ref/file_control.html',
+        sqlite3_finalize: 'www:/c3ref/finalize.html',
+        sqlite3_free: 'www:/c3ref/free.html',
+        sqlite3_get_auxdata: 'www:/c3ref/get_auxdata.html',
+        sqlite3_initialize: 'www:/c3ref/initialize.html',
+        sqlite3_keyword_check: 'www:/c3ref/keyword_check.html',
+        sqlite3_keyword_count: 'www:/c3ref/keyword_check.html',
+        sqlite3_keyword_name: 'www:/c3ref/keyword_check.html',
+        sqlite3_last_insert_rowid: 'www:/c3ref/last_insert_rowid.html',
+        sqlite3_libversion: 'www:/c3ref/libversion.html',
+        sqlite3_libversion_number: 'www:/c3ref/libversion.html',
+        sqlite3_limit: 'www:/c3ref/limit.html',
+        sqlite3_malloc: 'www:/c3ref/free.html',
+        sqlite3_malloc64: 'www:/c3ref/free.html',
+        sqlite3_msize: 'www:/c3ref/free.html',
+        sqlite3_open: 'www:/c3ref/open.html',
+        sqlite3_open_v2: 'www:/c3ref/open.html',
+        sqlite3_overload_function: 'www:/c3ref/overload_function.html',
+        sqlite3_prepare_v2: 'wasm:/api-c-style.md#sqlite3_prepare_v2',
+        sqlite3_prepare_v3: 'wasm:/api-c-style.md#sqlite3_prepare_v2',
+        sqlite3_progress_handler: 'www:/c3ref/progress_handler.html',
+        sqlite3_randomness: 'wasm:/api-c-style.md#sqlite3_randomness',
+        sqlite3_realloc: 'www:/c3ref/free.html',
+        sqlite3_realloc64: 'www:/c3ref/free.html',
+        sqlite3_reset: 'www:/c3ref/reset.html',
+        sqlite3_reset_auto_extension: 'wasm:/api-c-style.md#auto-extension',
+        sqlite3_result_blob: 'www:/c3ref/result_blob.html',
+        sqlite3_result_double: 'www:/c3ref/result_blob.html',
+        sqlite3_result_error: 'www:/c3ref/result_blob.html',
+        sqlite3_result_error_code: 'www:/c3ref/result_blob.html',
+        sqlite3_result_error_nomem: 'www:/c3ref/result_blob.html',
+        sqlite3_result_error_toobig: 'www:/c3ref/result_blob.html',
+        sqlite3_result_int: 'www:/c3ref/result_blob.html',
+        sqlite3_result_int64: 'www:/c3ref/result_blob.html',
+        sqlite3_result_null: 'www:/c3ref/result_blob.html',
+        sqlite3_result_pointer: 'www:/c3ref/result_blob.html',
+        sqlite3_result_subtype: 'www:/c3ref/result_subtype.html',
+        sqlite3_result_text: 'www:/c3ref/result_blob.html',
+        sqlite3_result_zeroblob: 'www:/c3ref/result_blob.html',
+        sqlite3_result_zeroblob64: 'www:/c3ref/result_blob.html',
+        sqlite3_rollback_hook: 'wasm:/api-c-style.md#hook-api',
+        sqlite3_serialize: 'www:/c3ref/serialize.html',
+        sqlite3_set_authorizer: 'wasm:/api-c-style.md#sqlite3_set_authorizer',
+        sqlite3_set_auxdata: 'www:/c3ref/get_auxdata.html',
+        sqlite3_set_last_insert_rowid: 'www:/c3ref/set_last_insert_rowid',
+        sqlite3_shutdown: 'www:/c3ref/initialize.html',
+        sqlite3_sourceid: 'www:/c3ref/libversion.html',
+        sqlite3_sql: 'www:/c3ref/expanded_sql.html',
+        sqlite3_status: 'www:/c3ref/status.html',
+        sqlite3_status64: 'www:/c3ref/status.html',
+        sqlite3_step: 'www:/c3ref/step.html',
+        sqlite3_stmt_isexplain: 'www:/c3ref/stmt_isexplain.html',
+        sqlite3_stmt_readonly: 'www:/c3ref/stmt_readonly.html',
+        sqlite3_stmt_status: 'www:/c3ref/stmt_status.html',
+        sqlite3_strglob: 'www:/c3ref/strglob.html',
+        sqlite3_stricmp: 'www:/c3ref/stricmp.html',
+        sqlite3_strlike: 'www:/c3ref/strlike.html',
+        sqlite3_strnicmp: 'www:/c3ref/strnicmp.html',
+        sqlite3_table_column_metadata: 'www:/c3ref/table_column_metadata.html',
+        sqlite3_total_changes: 'www:/c3ref/total_changes.html',
+        sqlite3_total_changes64: 'www:/c3ref/total_changes.html',
+        sqlite3_trace_v2: 'www:/c3ref/trace_v2.html',
+        sqlite3_txn_state: 'www:/c3ref/txn_state.html',
+        sqlite3_update_hook: 'wasm:/api-c-style.md#hook-api',
+        sqlite3_uri_boolean: 'www:/c3ref/uri_boolean.html',
+        sqlite3_uri_int64: 'www:/c3ref/uri_boolean.html',
+        sqlite3_uri_key: 'www:/c3ref/uri_boolean.html',
+        sqlite3_uri_parameter: 'www:/c3ref/uri_boolean.html',
+        sqlite3_user_data: 'www:/c3ref/user_data.html',
+        sqlite3_value_blob: 'www:/c3ref/value_blob.html',
+        sqlite3_value_bytes: 'www:/c3ref/value_blob.html',
+        sqlite3_value_double: 'www:/c3ref/value_blob.html',
+        sqlite3_value_dup: 'www:/c3ref/value_dup.html',
+        sqlite3_value_free: 'www:/c3ref/value_dup.html',
+        sqlite3_value_frombind: 'www:/c3ref/value_blob.html',
+        sqlite3_value_int: 'www:/c3ref/value_blob.html',
+        sqlite3_value_int64: 'www:/c3ref/value_blob.html',
+        sqlite3_value_nochange: 'www:/c3ref/value_blob.html',
+        sqlite3_value_numeric_type: 'www:/c3ref/value_blob.html',
+        sqlite3_value_pointer: 'www:/c3ref/value_blob.html',
+        sqlite3_value_subtype: 'www:/c3ref/value_subtype.html',
+        sqlite3_value_text: 'www:/c3ref/value_blob.html',
+        sqlite3_value_type: 'www:/c3ref/value_blob.html',
+        sqlite3_vfs_find: 'www:/c3ref/vfs_find.html',
+        sqlite3_vfs_register: 'www:/c3ref/vfs_find.html',
+        sqlite3_vfs_unregister: 'www:/c3ref/vfs_find.html',
+        sqlite3_vtab_collation: 'www:/c3ref/vtab_collation.html',
+        sqlite3_vtab_config: 'www:/c3ref/vtab_config.html',
+        sqlite3_vtab_distinct: 'www:/c3ref/vtab_distinct.html',
+        sqlite3_vtab_in: 'www:/c3ref/vtab_in.html',
+        sqlite3_vtab_in_first: 'www:/c3ref/vtab_in_first.html',
+        sqlite3_vtab_in_next: 'www:/c3ref/vtab_in_next.html',
+        sqlite3_vtab_nochange: 'www:/c3ref/vtab_nochange.html',
+        sqlite3_vtab_on_conflict: 'www:/c3ref/vtab_on_conflict.html',
+        sqlite3_vtab_rhs_value: 'www:/c3ref/vtab_rhs_value.html',
+
+        sqlite3_column_js: 'wasm:/api-c-style.md#sqlite3_column_js',
+        sqlite3_js_aggregate_context: 'wasm:/api-c-style.md#sqlite3_js_aggregate_context',
+        sqlite3_js_db_export: 'wasm:/api-c-style.md#sqlite3_js_db_export',
+        sqlite3_js_db_uses_vfs: 'wasm:/api-c-style.md#sqlite3_js_db_uses_vfs',
+        sqlite3_js_db_vfs: 'wasm:/api-c-style.md#sqlite3_js_db_vfs',
+        sqlite3_js_kvvfs_clear: 'wasm:/api-c-style.md#sqlite3_js_kvvfs',
+        sqlite3_js_kvvfs_size: 'wasm:/api-c-style.md#sqlite3_js_kvvfs',
+        sqlite3_js_posix_create_file: 'wasm:/api-c-style.md#sqlite3_js_posix_create_file',
+        sqlite3_js_rc_str: 'wasm:/api-c-style.md#sqlite3_js_rc_str',
+        sqlite3_js_vfs_create_file: 'wasm:/api-c-style.md#sqlite3_js_vfs_create_file',
+        sqlite3_js_vfs_list: 'wasm:/api-c-style.md#sqlite3_js_vfs_list',
+        sqlite3_result_error_js: 'wasm:/api-c-style.md#sqlite3_result_error_js',
+        sqlite3_result_js: 'wasm:/api-c-style.md#sqlite3_result_js',
+        sqlite3_value_to_js: 'wasm:/api-c-style.md#sqlite3_value_to_js',
+        sqlite3_values_to_js: 'wasm:/api-c-style.md#sqlite3_values_to_js',
+        
+        xform: (v)=>{
+            if(v){
+                return v.replace('www:','https://sqlite.org')
+                    .replace('wasm:','https://sqlite.org/wasm/doc/trunk');
+            }else{
+                return undefined;
+            }
+        }
+    });
+    const eNew = (tag,parent)=>{
+        const e = document.createElement(tag);
+        if(parent) parent.appendChild(e);
+        return e;
+    };
+    const eLi = (label,parent)=>{
+        const e = eNew('span',parent);
+        e.innerText = label;
+        return e;
+    };
+    const eLink = (label,url,parent)=>{
+        const w = eNew('span',parent);
+        const e = eNew('a',w);
+        if(url){
+            e.href = url;
+            e.target = 'sqlite3-api-docs';
+        }
+        e.innerText = label;
+        return w;
+    };
+    const E = (sel)=>document.querySelector(sel);
+    const EAll = (sel)=>document.querySelectorAll(sel);
+    const eFuncs = E('#list-functions'),
+          eConst = E('#list-constants');
+    const renderConst = function(name){
+        eLi(name, eConst);
+    };
+    const renderFunc = function(name){
+        let lbl = name+'()';
+        const e = eLink(lbl, apiLinks.xform(apiLinks[name]), eFuncs);
+        if(name.indexOf('_js')>0
+           || name.indexOf('_wasm')>0){
+            e.classList.add('func-wasm');
+        }
+    };
+    const renderGeneric = function(name,value,eParent){
+        let lbl;
+        if(value instanceof Function) lbl = name+'()';
+        else{
+            switch(typeof value){
+                case 'number': case 'boolean': case 'string':
+                    lbl = name+' = '+JSON.stringify(value);
+                    break;
+                default:
+                    lbl = name + ' ['+(typeof value)+']';
+            }
+        }
+        const e = eLi(lbl, eParent);
+        if(name.startsWith('sqlite3_wasm')){
+            e.classList.add('func-wasm');
+        }
+    };
+    const renderIt = async function(sqlite3){
+        self.sqlite3 = sqlite3;
+        console.warn("sqlite3 installed as global symbol self.sqlite3.");
+        const capi = sqlite3.capi, wasm = sqlite3.wasm;
+        const cmpIcase = (a,b)=>a.toLowerCase().localeCompare(b.toLowerCase());
+        const renderX = function(tgtElem, container, keys){
+            for(const k of keys.sort(cmpIcase)){
+                renderGeneric(k, container[k], tgtElem);
+            }
+        };
+        
+        const excludeNamespace = ['scriptInfo','StructBinder'];
+        renderX(
+            E('#list-namespace'), sqlite3,
+            Object.keys(sqlite3)
+                .filter((v)=>excludeNamespace.indexOf(v)<0)
+        );
+        renderX(
+            E('#list-version'), sqlite3.version,
+            Object.keys(sqlite3.version)
+        );
+
+        /* sqlite3_...() and SQLITE_... */
+        const lists = {c: [/*constants*/], f: [/*functions*/],
+                       s: [/*structs*/]};
+        /* Exclude these from the function list... */
+        const excludeCapi = [
+            // WASMFS stuff:
+            'sqlite3_wasmfs_filename_is_persistent',
+            'sqlite3_wasmfs_opfs_dir'
+        ];
+        for(const [k,v] of Object.entries(capi)){
+            if(k.startsWith('SQLITE_')){
+                lists.c.push(k);
+            }else if(k.startsWith('sqlite3_')){
+                if(excludeCapi.indexOf(k)>=0) continue;
+                if(v.structInfo){
+                    // assume this is a StructType-type.
+                    continue;
+                }
+                lists.f.push(k);
+            }
+        }
+        lists.c.sort().forEach(renderConst);
+        lists.f.sort().forEach(renderFunc);
+        lists.c = lists.f = null;
+
+        renderX(E('#list-oo1'), sqlite3.oo1,
+                Object.keys(sqlite3.oo1) );
+
+        const excludeWasm = ['ctype'];
+        renderX(E('#list-wasm'),
+                wasm, Object.keys(wasm).filter((v)=>{
+                    return !v.startsWith('sqlite3_wasm_')
+                        && excludeWasm.indexOf(v)<0;
+                }));
+        const psKeys = Object.keys(wasm.pstack);
+        psKeys.push('pointer','quota','remaining');
+        renderX(E('#list-wasm-pstack'), wasm.pstack, psKeys);
+
+        const cou = wasm.compileOptionUsed();
+        //const cou2 = Object.create(null);
+        //Object.entries(cou).forEach((e)=>cou2['SQLITE_'+e[0]] = e[1]);
+        renderX(E('#list-compile-options'), cou, Object.keys(cou));
+    };
+
+    /**
+       This is a module object for use with the emscripten-installed
+       sqlite3InitModule() factory function.
+    */
+    const myModule = {
+        print: (...args)=>{console.log(...args)},
+        printErr: (...args)=>{console.error(...args)},
+        /**
+           Called by the Emscripten module init bits to report loading
+           progress. It gets passed an empty argument when loading is done
+           (after onRuntimeInitialized() and any this.postRun callbacks
+           have been run).
+        */
+        setStatus: function f(text){
+            if(!f.last){
+                f.last = { text: '', step: 0 };
+                f.ui = {
+                    status: E('#module-load-status')
+                };
+            }
+            if(text === f.last.text) return;
+            f.last.text = text;
+            ++f.last.step;
+            if(text) {
+                f.ui.status.classList.remove('hidden');
+                f.ui.status.innerText = text;
+            }else{
+                f.ui.status.classList.add('hidden');
+                EAll('.initially-hidden').forEach((e)=>{
+                    e.classList.remove('initially-hidden');
+                });
+            }
+        }
+    }/*myModule*/;
+    self.sqlite3InitModule(myModule).then(renderIt);
+})();</script>
+</div><!-- .fossil-doc EXTRACT_END -->
+</body></html>
diff --git a/ext/wasm/scratchpad-wasmfs.html b/ext/wasm/scratchpad-wasmfs.html
new file mode 100644
index 0000000000000000000000000000000000000000..c37febff18172660673faa0a6e6d547918e42cf1
--- /dev/null
+++ b/ext/wasm/scratchpad-wasmfs.html
@@ -0,0 +1,30 @@
+<!doctype html>
+<html lang="en-us">
+  <head>
+    <meta charset="utf-8">
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+    <link rel="shortcut icon" href="data:image/x-icon;," type="image/x-icon">
+    <link rel="stylesheet" href="common/emscripten.css"/>
+    <link rel="stylesheet" href="common/testing.css"/>
+    <title>sqlite3 WASMFS/OPFS Main-thread Scratchpad</title>
+  </head>
+  <body>
+    <header id='titlebar'><span>sqlite3 WASMFS/OPFS Main-thread Scratchpad</span></header>
+    <p>Scratchpad/test app for the WASMF/OPFS integration in the
+      main window thread. This page requires that the sqlite3 API have
+      been built with WASMFS support. If OPFS support is available then
+      it "should" persist a database across reloads (watch the dev console
+      output), otherwise it will not.
+    </p>
+    <p>All stuff on this page happens in the dev console.</p>
+    <hr>
+    <div id='test-output'></div>
+    <script>
+      (function(){
+          const W = new Worker('scratchpad-wasmfs.mjs',{
+              type: 'module'
+          });
+      })();
+    </script>
+  </body>
+</html>
diff --git a/ext/wasm/scratchpad-wasmfs.mjs b/ext/wasm/scratchpad-wasmfs.mjs
new file mode 100644
index 0000000000000000000000000000000000000000..d6b69a1d6ecc3fc09a257f934ad89729c582aafb
--- /dev/null
+++ b/ext/wasm/scratchpad-wasmfs.mjs
@@ -0,0 +1,70 @@
+/*
+  2022-05-22
+
+  The author disclaims copyright to this source code.  In place of a
+  legal notice, here is a blessing:
+
+  *   May you do good and not evil.
+  *   May you find forgiveness for yourself and forgive others.
+  *   May you share freely, never taking more than you give.
+
+  ***********************************************************************
+
+  A basic test script for sqlite3-api.js. This file must be run in
+  main JS thread and sqlite3.js must have been loaded before it.
+*/
+import sqlite3InitModule from './jswasm/sqlite3-wasmfs.mjs';
+//console.log('sqlite3InitModule =',sqlite3InitModule);
+const toss = function(...args){throw new Error(args.join(' '))};
+const log = console.log.bind(console),
+      warn = console.warn.bind(console),
+      error = console.error.bind(console);
+
+const stdout = log;
+const stderr = error;
+
+const test1 = function(db){
+  db.exec("create table if not exists t(a);")
+    .transaction(function(db){
+      db.prepare("insert into t(a) values(?)")
+        .bind(new Date().getTime())
+        .stepFinalize();
+      stdout("Number of values in table t:",
+             db.selectValue("select count(*) from t"));
+    });
+};
+
+const runTests = function(sqlite3){
+  const capi = sqlite3.capi,
+        oo = sqlite3.oo1,
+        wasm = sqlite3.wasm;
+  stdout("Loaded module:",sqlite3);
+  stdout("Loaded sqlite3:",capi.sqlite3_libversion(), capi.sqlite3_sourceid());
+  const persistentDir = capi.sqlite3_wasmfs_opfs_dir();
+  if(persistentDir){
+    stdout("Persistent storage dir:",persistentDir);
+  }else{
+    stderr("No persistent storage available.");
+  }
+  const startTime = performance.now();
+  let db;
+  try {
+    db = new oo.DB(persistentDir+'/foo.db');
+    stdout("DB filename:",db.filename);
+    const banner1 = '>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>',
+          banner2 = '<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<';
+    [
+      test1
+    ].forEach((f)=>{
+      const n = performance.now();
+      stdout(banner1,"Running",f.name+"()...");
+      f(db, sqlite3);
+      stdout(banner2,f.name+"() took ",(performance.now() - n),"ms");
+    });
+  }finally{
+    if(db) db.close();
+  }
+  stdout("Total test time:",(performance.now() - startTime),"ms");
+};
+
+sqlite3InitModule().then(runTests);
diff --git a/ext/wasm/speedtest1-wasmfs.html b/ext/wasm/speedtest1-wasmfs.html
new file mode 100644
index 0000000000000000000000000000000000000000..c018583d0f535650520b9f0dc68446b71b9afc17
--- /dev/null
+++ b/ext/wasm/speedtest1-wasmfs.html
@@ -0,0 +1,55 @@
+<!doctype html>
+<html lang="en-us">
+  <head>
+    <meta charset="utf-8">
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+    <link rel="shortcut icon" href="data:image/x-icon;," type="image/x-icon">
+    <link rel="stylesheet" href="common/emscripten.css"/>
+    <link rel="stylesheet" href="common/testing.css"/>
+    <title>speedtest1-wasmfs.wasm</title>
+  </head>
+  <body>
+    <header id='titlebar'><span>speedtest1-wasmfs.wasm</span></header>
+    <div>See also: <a href='speedtest1-worker.html'>speedtest1-worker</a></div>
+    <div class='warning'>Achtung: running it with the dev tools open may
+      <em>drastically</em> slow it down. For faster results, keep the dev
+      tools closed when running it!
+    </div>
+    <div id='test-output'></div>
+    <script>
+      (function(){
+          const eOut = document.querySelector('#test-output');
+          const log2 = function(cssClass,...args){
+              const ln = document.createElement('div');
+              if(cssClass) ln.classList.add(cssClass);
+              ln.append(document.createTextNode(args.join(' ')));
+              eOut.append(ln);
+              //this.e.output.lastElementChild.scrollIntoViewIfNeeded();
+          };
+          /* can't update DOM while speedtest is running unless we run
+             speedtest in a worker thread. */;
+          const log = (...args)=>{
+              console.log(...args);
+              log2('',...args);
+          };
+          const logErr = function(...args){
+              console.error(...args);
+              log2('error',...args);
+          };
+          const W = new Worker(
+              'speedtest1-wasmfs.mjs'+globalThis.location.search,{
+              type: 'module'
+          });
+          log("Starting up...");
+          W.onmessage = function({data}){
+              switch(data.type){
+                  case 'log': log(...data.args); break;
+                  case 'logErr': logErr(...data.args); break;
+                  default:
+                      break;
+              }
+          };
+      })();
+    </script>
+  </body>
+</html>
diff --git a/ext/wasm/speedtest1-wasmfs.mjs b/ext/wasm/speedtest1-wasmfs.mjs
new file mode 100644
index 0000000000000000000000000000000000000000..aeb37dd7f933aa4d58ee316e5ada3485442386d0
--- /dev/null
+++ b/ext/wasm/speedtest1-wasmfs.mjs
@@ -0,0 +1,90 @@
+import sqlite3InitModule from './jswasm/speedtest1-wasmfs.mjs';
+const wMsg = (type,...args)=>{
+  postMessage({type, args});
+};
+wMsg('log',"speedtest1-wasmfs starting...");
+/**
+   If this environment contains OPFS, this function initializes it and
+   returns the name of the dir on which OPFS is mounted, else it returns
+   an empty string.
+*/
+const wasmfsDir = function f(wasmUtil,dirName="/opfs"){
+  if(undefined !== f._) return f._;
+  if( !globalThis.FileSystemHandle
+      || !globalThis.FileSystemDirectoryHandle
+      || !globalThis.FileSystemFileHandle){
+    return f._ = "";
+  }
+  try{
+    if(0===wasmUtil.xCallWrapped(
+      'sqlite3__wasm_init_wasmfs', 'i32', ['string'], dirName
+    )){
+      return f._ = dirName;
+    }else{
+      return f._ = "";
+    }
+  }catch(e){
+    // sqlite3_wasm_init_wasmfs() is not available
+    return f._ = "";
+  }
+};
+wasmfsDir._ = undefined;
+
+const log = (...args)=>wMsg('log',...args);
+const logErr = (...args)=>wMsg('logErr',...args);
+
+const runTests = function(sqlite3){
+  console.log("Module inited.",sqlite3);
+  const wasm = sqlite3.wasm;
+  const __unlink = wasm.xWrap("sqlite3__wasm_vfs_unlink", "int", ["*","string"]);
+  const unlink = (fn)=>__unlink(0,fn);
+  const pDir = wasmfsDir(wasm);
+  if(pDir) log("Persistent storage:",pDir);
+  else{
+    logErr("Expecting persistent storage in this build.");
+    return;
+  }
+  const scope = wasm.scopedAllocPush();
+  const dbFile = pDir+"/speedtest1.db";
+  const urlParams = new URL(globalThis.location.href).searchParams;
+  const argv = ["speedtest1"];
+  if(urlParams.has('flags')){
+    argv.push(...(urlParams.get('flags').split(',')));
+    let i = argv.indexOf('--vfs');
+    if(i>=0) argv.splice(i,2);
+  }else{
+    argv.push(
+      "--singlethread",
+      "--nomutex",
+      //"--nosync",
+      "--nomemstat",
+      "--size", "10"
+    );
+  }
+
+  if(argv.indexOf('--memdb')>=0){
+    logErr("WARNING: --memdb flag trumps db filename.");
+  }
+  argv.push("--big-transactions"/*important for tests 410 and 510!*/,
+            dbFile);
+  //log("argv =",argv);
+  // These log messages are not emitted to the UI until after main() returns. Fixing that
+  // requires moving the main() call and related cleanup into a timeout handler.
+  if(pDir) unlink(dbFile);
+  log("Starting native app:\n ",argv.join(' '));
+  log("This will take a while and the browser might warn about the runaway JS.",
+      "Give it time...");
+  setTimeout(function(){
+    if(pDir) unlink(dbFile);
+    wasm.xCall('wasm_main', argv.length,
+               wasm.scopedAllocMainArgv(argv));
+    wasm.scopedAllocPop(scope);
+    if(pDir) unlink(dbFile);
+    log("Done running native main()");
+  }, 25);
+}/*runTests()*/;
+
+sqlite3InitModule({
+  print: log,
+  printErr: logErr
+}).then(runTests);
diff --git a/ext/wasm/speedtest1-worker.html b/ext/wasm/speedtest1-worker.html
new file mode 100644
index 0000000000000000000000000000000000000000..8c9a77dc5e2d6a3f4f13121de5cf608f22c78244
--- /dev/null
+++ b/ext/wasm/speedtest1-worker.html
@@ -0,0 +1,372 @@
+<!doctype html>
+<html lang="en-us">
+  <head>
+    <meta charset="utf-8">
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+    <link rel="shortcut icon" href="data:image/x-icon;," type="image/x-icon">
+    <link rel="stylesheet" href="common/emscripten.css"/>
+    <link rel="stylesheet" href="common/testing.css"/>
+    <title>speedtest1.wasm Worker</title>
+  </head>
+  <body>
+    <header id='titlebar'>speedtest1.wasm Worker</header>
+    <div>See also: <a href='speedtest1.html'>A main-thread variant of this page.</a></div>
+    <!-- emscripten bits -->
+    <figure id="module-spinner">
+      <div class="spinner"></div>
+      <div class='center'><strong>Initializing app...</strong></div>
+      <div class='center'>
+        On a slow internet connection this may take a moment.  If this
+        message displays for "a long time", intialization may have
+        failed and the JavaScript console may contain clues as to why.
+      </div>
+    </figure>
+    <div class="emscripten" id="module-status">Downloading...</div>
+    <div class="emscripten">
+      <progress value="0" max="100" id="module-progress" hidden='1'></progress>
+    </div><!-- /emscripten bits -->
+    <fieldset id='ui-controls' class='hidden'>
+      <legend>Options</legend>
+      <div id='toolbar'>
+        <div id='toolbar-select'>
+          <select id='select-flags' size='10' multiple></select>
+          <div>The following flags can be passed as URL parameters:
+            vfs=NAME, size=N, journal=MODE, cachesize=SIZE
+          </div>
+        </div>
+        <div class='toolbar-inner-vertical'>
+          <div id='toolbar-selected-flags'></div>
+          <div class='toolbar-inner-vertical'>
+            <span>&rarr; <a id='link-main-thread' href='#' target='speedtest-main'
+                            title='Start speedtest1.html with the selected flags'>speedtest1</a>
+            </span>
+            <span class='hidden'>&rarr; <a id='link-wasmfs' href='#' target='speedtest-wasmfs'
+                            title='Start speedtest1-wasmfs.html with the selected flags'>speedtest1-wasmfs</a>
+            </span>
+            <span>&rarr; <a id='link-kvvfs' href='#' target='speedtest-kvvfs'
+                            title='Start kvvfs speedtest1 with the selected flags'>speedtest1-kvvfs</a>
+            </span>
+          </div>
+        </div>
+        <div class='toolbar-inner-vertical' id='toolbar-runner-controls'>
+          <button id='btn-reset-flags'>Reset Flags</button>
+          <button id='btn-output-clear'>Clear output</button>
+          <button id='btn-run'>Run</button>
+        </div>
+      </div>
+    </fieldset>
+    <div>
+      <span class='input-wrapper'>
+        <input type='checkbox' class='disable-during-eval' id='cb-reverse-log-order' checked></input>
+        <label for='cb-reverse-log-order' id='lbl-reverse-log-order'>Reverse log order</label>
+      </span>
+    </div>
+    <div id='test-output'>
+    </div>
+    <div id='tips'>
+      <strong>Tips:</strong>
+      <ul>
+        <li>Control-click the flags to (de)select multiple flags.</li>
+        <li>The <tt>--big-transactions</tt> flag is important for two
+          of the bigger tests. Without it, those tests create many
+          thousands of implicit transactions, reducing the affected
+          tests to an absolute crawl, in particular with OPFS.
+        </li>
+        <li>The easiest way to try different optimization levels is,
+          from this directory:
+          <pre>$ rm -f jswasm/speedtest1.js; make -e emcc_opt='-O2' speedtest1</pre>
+          Then reload this page. -O2 seems to consistently produce the fastest results.
+        </li>
+        </ul>
+    </div>
+    <style>
+      #test-output {
+          white-space: break-spaces;
+          overflow: auto;
+      }
+      div#tips { margin-top: 1em; }
+      #toolbar {
+          display: flex;
+          flex-direction: row;
+          flex-wrap: wrap;
+      }
+      #toolbar > * {
+          margin: 0 0.5em;
+      }
+      .toolbar-inner-vertical {
+          display: flex;
+          flex-direction: column;
+          justify-content: space-between;
+      }
+      #toolbar-select {
+          display: flex;
+          flex-direction: column;
+      }
+      .toolbar-inner-vertical > *, #toolbar-select > * {
+          margin: 0.2em 0;
+      }
+      #select-flags > option {
+          white-space: pre;
+          font-family: monospace;
+      }
+      fieldset {
+          border-radius: 0.5em;
+      }
+      #toolbar-runner-controls { flex-grow: 1 }
+      #toolbar-runner-controls > * { flex: 1 0 auto }
+      #toolbar-selected-flags::before {
+        font-family: initial;
+        content:"Selected flags: ";
+      }
+      #toolbar-selected-flags {
+        display: flex;
+        flex-direction: column;
+        font-family: monospace;
+        justify-content: flex-start;
+      }
+    </style>
+    <script>(function(){
+    'use strict';
+    const E = (sel)=>document.querySelector(sel);
+    const eOut = E('#test-output');
+    const log2 = function(cssClass,...args){
+        let ln;
+        if(1 || cssClass){
+            ln = document.createElement('div');
+            if(cssClass) ln.classList.add(cssClass);
+            ln.append(document.createTextNode(args.join(' ')));
+        }else{
+            // This doesn't work with the "reverse order" option!
+            ln = document.createTextNode(args.join(' ')+'\n');
+        }
+        eOut.append(ln);
+    };
+    const log = (...args)=>{
+        //console.log(...args);
+        log2('', ...args);
+    };
+    const logErr = function(...args){
+        console.error(...args);
+        log2('error', ...args);
+    };
+    const logWarn = function(...args){
+        console.warn(...args);
+        log2('warning', ...args);
+    };
+
+    const spacePad = function(str,len=21){
+        if(str.length===len) return str;
+        else if(str.length>len) return str.substr(0,len);
+        const a = []; a.length = len - str.length;
+        return str+a.join(' ');
+    };
+    // OPTION elements seem to ignore white-space:pre, so do this the hard way...
+    const nbspPad = function(str,len=21){
+        if(str.length===len) return str;
+        else if(str.length>len) return str.substr(0,len);
+        const a = []; a.length = len - str.length;
+        return str+a.join('&nbsp;');
+    };
+
+    const urlParams = new URL(self.location.href).searchParams;
+    const W = new Worker(
+        "speedtest1-worker.js?sqlite3.dir=jswasm"+
+            (urlParams.has('opfs-verbose') ? '&opfs-verbose' : '')+
+            (urlParams.has('opfs-disable') ? '&opfs-disable' : '')
+    );
+    const mPost = function(msgType,payload){
+        W.postMessage({type: msgType, data: payload});
+    };
+
+    const eFlags = E('#select-flags');
+    const eSelectedFlags = E('#toolbar-selected-flags');
+    const eLinkMainThread = E('#link-main-thread');
+    const eLinkWasmfs = E('#link-wasmfs');
+    const eLinkKvvfs = E('#link-kvvfs');
+    const getSelectedFlags = ()=>{
+        const f = Array.prototype.map.call(eFlags.selectedOptions, (v)=>v.value);
+        [
+            'size', 'vfs', 'journal', 'cachesize'
+        ].forEach(function(k){
+            if(urlParams.has(k)) f.push('--'+k, urlParams.get(k));
+        });
+        return f;
+    };
+    const updateSelectedFlags = function(){
+        eSelectedFlags.innerText = '';
+        const flags = getSelectedFlags();
+        flags.forEach(function(f){
+            const e = document.createElement('span');
+            e.innerText = f;
+            eSelectedFlags.appendChild(e);
+        });
+        const rxStripDash = /^(-+)?/;
+        const comma = flags.join(',');
+        eLinkMainThread.setAttribute('target', 'speedtest1-main-'+comma);
+        eLinkMainThread.href = 'speedtest1.html?flags='+comma;
+        eLinkWasmfs.setAttribute('target', 'speedtest1-wasmfs-'+comma);
+        eLinkWasmfs.href = 'speedtest1-wasmfs.html?flags='+comma;
+        eLinkKvvfs.setAttribute('target', 'speedtest1-kvvfs-'+comma);
+        eLinkKvvfs.href = 'speedtest1.html?vfs=kvvfs&flags='+comma;
+    };
+    eFlags.addEventListener('change', updateSelectedFlags );
+    {
+        const flags = Object.create(null);
+        /* TODO? Flags which require values need custom UI
+           controls and some of them make little sense here
+           (e.g. --script FILE). */
+        flags["--autovacuum"] = "Enable AUTOVACUUM mode";
+        flags["--big-transactions"] = "Important for tests 410 and 510!";
+        //flags["--cachesize"] = "N       Set the cache size to N pages";
+        flags["--checkpoint"] = "Run PRAGMA wal_checkpoint after each test case";
+        flags["--exclusive"] = "Enable locking_mode=EXCLUSIVE";
+        flags["--explain"] = "Like --sqlonly but with added EXPLAIN keywords";
+        //flags["--heap"] = "SZ MIN       Memory allocator uses SZ bytes & min allocation MIN";
+        flags["--incrvacuum"] = "Enable incremenatal vacuum mode";
+        //flags["--journal"] = "M         Set the journal_mode to M";
+        //flags["--key"] = "KEY           Set the encryption key to KEY";
+        //flags["--lookaside"] = "N SZ    Configure lookaside for N slots of SZ bytes each";
+        flags["--memdb"] = "Use an in-memory database";
+        //flags["--mmap"] = "SZ           MMAP the first SZ bytes of the database file";
+        flags["--multithread"] = "Set multithreaded mode";
+        flags["--nomemstat"] = "Disable memory statistics";
+        flags["--nomutex"] = "Open db with SQLITE_OPEN_NOMUTEX";
+        flags["--nosync"] = "Set PRAGMA synchronous=OFF";
+        flags["--notnull"] = "Add NOT NULL constraints to table columns";
+        //flags["--output"] = "FILE       Store SQL output in FILE";
+        //flags["--pagesize"] = "N        Set the page size to N";
+        //flags["--pcache"] = "N SZ       Configure N pages of pagecache each of size SZ bytes";
+        //flags["--primarykey"] = "Use PRIMARY KEY instead of UNIQUE where appropriate";
+        //flags["--repeat"] = "N          Repeat each SELECT N times (default: 1)";
+        flags["--reprepare"] = "Reprepare each statement upon every invocation";
+        //flags["--reserve"] = "N         Reserve N bytes on each database page";
+        //flags["--script"] = "FILE       Write an SQL script for the test into FILE";
+        flags["--serialized"] = "Set serialized threading mode";
+        flags["--singlethread"] = "Set single-threaded mode - disables all mutexing";
+        flags["--sqlonly"] = "No-op.  Only show the SQL that would have been run.";
+        flags["--shrink-memory"] = "Invoke sqlite3_db_release_memory() frequently.";
+        //flags["--size"] = "N            Relative test size.  Default=100";
+        flags["--strict"] = "Use STRICT table where appropriate";
+        flags["--stats"] = "Show statistics at the end";
+        //flags["--temp"] = "N            N from 0 to 9.  0: no temp table. 9: all temp tables";
+        //flags["--testset"] = "T         Run test-set T (main, cte, rtree, orm, fp, debug)";
+        flags["--trace"] = "Turn on SQL tracing";
+        //flags["--threads"] = "N         Use up to N threads for sorting";
+        /*
+          The core API's WASM build does not support UTF16, but in
+          this app it's not an issue because the data are not crossing
+          JS/WASM boundaries.
+        */
+        flags["--utf16be"] = "Set text encoding to UTF-16BE";
+        flags["--utf16le"] = "Set text encoding to UTF-16LE";
+        flags["--verify"] = "Run additional verification steps.";
+        flags["--without-rowid"] = "Use WITHOUT ROWID where appropriate";
+        const preselectedFlags = [
+            '--big-transactions',
+            '--singlethread'
+        ];
+        if(urlParams.has('flags')){
+            preselectedFlags.push(...urlParams.get('flags').split(','));
+        }
+        if(!urlParams.get('vfs')){
+            preselectedFlags.push('--memdb');
+        }
+        Object.keys(flags).sort().forEach(function(f){
+            const opt = document.createElement('option');
+            eFlags.appendChild(opt);
+            const lbl = nbspPad(f)+flags[f];
+            //opt.innerText = lbl;
+            opt.innerHTML = lbl;
+            opt.value = f;
+            if(preselectedFlags.indexOf(f) >= 0) opt.selected = true;
+        });    
+        const cbReverseLog = E('#cb-reverse-log-order');
+        const lblReverseLog = E('#lbl-reverse-log-order');
+        if(cbReverseLog.checked){
+            lblReverseLog.classList.add('warning');
+            eOut.classList.add('reverse');
+        }
+        cbReverseLog.addEventListener('change', function(){
+            if(this.checked){
+                eOut.classList.add('reverse');
+                lblReverseLog.classList.add('warning');
+            }else{
+                eOut.classList.remove('reverse');
+                lblReverseLog.classList.remove('warning');
+            }
+        }, false);
+        updateSelectedFlags();
+    }
+    E('#btn-output-clear').addEventListener('click', ()=>{
+        eOut.innerText = '';
+    });
+    E('#btn-reset-flags').addEventListener('click',()=>{
+        eFlags.value = '';
+        updateSelectedFlags();
+    });
+    E('#btn-run').addEventListener('click',function(){
+        log("Running speedtest1. UI controls will be disabled until it completes.");
+        mPost('run', getSelectedFlags());
+    });
+
+    const eControls = E('#ui-controls');
+    /** Update Emscripten-related UI elements while loading the module. */
+    const updateLoadStatus = function f(text){
+        if(!f.last){
+            f.last = { text: '', step: 0 };
+            const E = (cssSelector)=>document.querySelector(cssSelector);
+            f.ui = {
+                status: E('#module-status'),
+                progress: E('#module-progress'),
+                spinner: E('#module-spinner')
+            };
+        }
+        if(text === f.last.text) return;
+        f.last.text = text;
+        if(f.ui.progress){
+            f.ui.progress.value = f.last.step;
+            f.ui.progress.max = f.last.step + 1;
+        }
+        ++f.last.step;
+        if(text) {
+            f.ui.status.classList.remove('hidden');
+            f.ui.status.innerText = text;
+        }else{
+            if(f.ui.progress){
+                f.ui.progress.remove();
+                f.ui.spinner.remove();
+                delete f.ui.progress;
+                delete f.ui.spinner;
+            }
+            f.ui.status.classList.add('hidden');
+        }
+    };
+
+    W.onmessage = function(msg){
+        msg = msg.data;
+        switch(msg.type){
+            case 'ready':
+                log("Worker is ready.");
+                eControls.classList.remove('hidden');
+                break;
+            case 'stdout': log(msg.data); break;
+            case 'stderr': logErr(msg.data); break;
+            case 'run-start':
+                eControls.disabled = true;
+                log("Running speedtest1 with argv =",msg.data.join(' '));
+                break;
+            case 'run-end':
+                log("speedtest1 finished.");
+                eControls.disabled = false;
+                // app output is in msg.data
+                break;
+            case 'error': logErr(msg.data); break;
+            case 'load-status': updateLoadStatus(msg.data); break;
+            default:
+                logErr("Unhandled worker message type:",msg);
+                break;
+        }
+    };
+})();</script>
+  </body>
+</html>
diff --git a/ext/wasm/speedtest1-worker.js b/ext/wasm/speedtest1-worker.js
new file mode 100644
index 0000000000000000000000000000000000000000..5261c839327dd0516e07d4c5896fd9c0e4bf3e26
--- /dev/null
+++ b/ext/wasm/speedtest1-worker.js
@@ -0,0 +1,123 @@
+'use strict';
+(function(){
+  let speedtestJs = 'speedtest1.js';
+  const urlParams = new URL(self.location.href).searchParams;
+  if(urlParams.has('sqlite3.dir')){
+    speedtestJs = urlParams.get('sqlite3.dir') + '/' + speedtestJs;
+  }
+  importScripts(speedtestJs);
+  /**
+     If this build includes WASMFS, this function initializes it and
+     returns the name of the dir on which OPFS is mounted, else it
+     returns an empty string.
+  */
+  const wasmfsDir = function f(wasmUtil){
+    if(undefined !== f._) return f._;
+    const pdir = '/opfs';
+    if( !self.FileSystemHandle
+        || !self.FileSystemDirectoryHandle
+        || !self.FileSystemFileHandle){
+      return f._ = "";
+    }
+    try{
+      if(0===wasmUtil.xCallWrapped(
+        'sqlite3_wasm_init_wasmfs', 'i32', ['string'], pdir
+      )){
+        return f._ = pdir;
+      }else{
+        return f._ = "";
+      }
+    }catch(e){
+      // sqlite3_wasm_init_wasmfs() is not available
+      return f._ = "";
+    }
+  };
+  wasmfsDir._ = undefined;
+
+  const mPost = function(msgType,payload){
+    postMessage({type: msgType, data: payload});
+  };
+
+  const App = Object.create(null);
+  App.logBuffer = [];
+  const logMsg = (type,msgArgs)=>{
+    const msg = msgArgs.join(' ');
+    App.logBuffer.push(msg);
+    mPost(type,msg);
+  };
+  const log = (...args)=>logMsg('stdout',args);
+  const logErr = (...args)=>logMsg('stderr',args);
+  const realSahName = 'opfs-sahpool-speedtest1';
+
+  const runSpeedtest = async function(cliFlagsArray){
+    const scope = App.wasm.scopedAllocPush();
+    const dbFile = App.pDir+"/speedtest1.sqlite3";
+    try{
+      const argv = [
+        "speedtest1.wasm", ...cliFlagsArray, dbFile
+      ];
+      App.logBuffer.length = 0;
+      const ndxSahPool = argv.indexOf('opfs-sahpool');
+      if(ndxSahPool>0){
+        argv[ndxSahPool] = realSahName;
+        log("Updated argv for opfs-sahpool: --vfs",realSahName);
+      }
+      mPost('run-start', [...argv]);
+      if(App.sqlite3.installOpfsSAHPoolVfs
+         && !App.sqlite3.$SAHPoolUtil
+         && ndxSahPool>0){
+        log("Installing opfs-sahpool as",realSahName,"...");
+        await App.sqlite3.installOpfsSAHPoolVfs({
+          name: realSahName,
+          initialCapacity: 3,
+          clearOnInit: true,
+          verbosity: 2
+        }).then(PoolUtil=>{
+          log("opfs-sahpool successfully installed as",PoolUtil.vfsName);
+          App.sqlite3.$SAHPoolUtil = PoolUtil;
+          //console.log("sqlite3.oo1.OpfsSAHPoolDb =", App.sqlite3.oo1.OpfsSAHPoolDb);
+        });
+      }
+      App.wasm.xCall('wasm_main', argv.length,
+                     App.wasm.scopedAllocMainArgv(argv));
+    }catch(e){
+      mPost('error',e.message);
+    }finally{
+      App.wasm.scopedAllocPop(scope);
+      mPost('run-end', App.logBuffer.join('\n'));
+      App.logBuffer.length = 0;
+    }
+  };
+
+  self.onmessage = function(msg){
+    msg = msg.data;
+    switch(msg.type){
+        case 'run':
+          runSpeedtest(msg.data || [])
+            .catch(e=>mPost('error',e));
+          break;
+        default:
+          logErr("Unhandled worker message type:",msg.type);
+          break;
+    }
+  };
+
+  const EmscriptenModule = {
+    print: log,
+    printErr: logErr,
+    setStatus: (text)=>mPost('load-status',text)
+  };
+  log("Initializing speedtest1 module...");
+  self.sqlite3InitModule(EmscriptenModule).then(async (sqlite3)=>{
+    const S = globalThis.S = App.sqlite3 = sqlite3;
+    log("Loaded speedtest1 module. Setting up...");
+    App.pDir = wasmfsDir(S.wasm);
+    App.wasm = S.wasm;
+    //if(App.pDir) log("Persistent storage:",pDir);
+    //else log("Using transient storage.");
+    mPost('ready',true);
+    log("Registered VFSes:", ...S.capi.sqlite3_js_vfs_list());
+  }).catch(e=>{
+    logErr(e);
+  });
+})();
diff --git a/ext/wasm/speedtest1.html b/ext/wasm/speedtest1.html
new file mode 100644
index 0000000000000000000000000000000000000000..9cc20924e95fdc92c12c5e740e5574d0a5271351
--- /dev/null
+++ b/ext/wasm/speedtest1.html
@@ -0,0 +1,174 @@
+<!doctype html>
+<html lang="en-us">
+  <head>
+    <meta charset="utf-8">
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+    <link rel="shortcut icon" href="data:image/x-icon;," type="image/x-icon">
+    <link rel="stylesheet" href="common/emscripten.css"/>
+    <link rel="stylesheet" href="common/testing.css"/>
+    <title>speedtest1.wasm</title>
+  </head>
+  <body>
+    <header id='titlebar'><span>speedtest1.wasm</span></header>
+    <div>See also: <a href='speedtest1-worker.html'>A Worker-thread variant of this page.</a></div>
+    <!-- emscripten bits -->
+    <figure id="module-spinner">
+      <div class="spinner"></div>
+      <div class='center'><strong>Initializing app...</strong></div>
+      <div class='center'>
+        On a slow internet connection this may take a moment.  If this
+        message displays for "a long time", intialization may have
+        failed and the JavaScript console may contain clues as to why.
+      </div>
+    </figure>
+    <div class="emscripten" id="module-status">Downloading...</div>
+    <div class="emscripten">
+      <progress value="0" max="100" id="module-progress" hidden='1'></progress>  
+    </div><!-- /emscripten bits -->
+    <div class='warning'>This page starts running the main exe when it loads, which will
+      block the UI until it finishes! Adding UI controls to manually configure and start it
+      are TODO.</div>
+    </div>
+    <div class='warning'>Achtung: running it with the dev tools open may
+      <em>drastically</em> slow it down. For faster results, keep the dev
+      tools closed when running it!
+    </div>
+    <div>Output is delayed/buffered because we cannot update the UI while the
+      speedtest is running. Output will appear below when ready...
+    <div id='test-output'></div>
+    <script src="common/SqliteTestUtil.js"></script>
+    <script src="jswasm/speedtest1.js"></script>
+    <script>(function(){
+    /**
+       If this environment contains WASMFS with OPFS, this function
+       initializes it and returns the name of the dir on which OPFS is
+       mounted, else it returns an empty string.
+    */
+    const wasmfsDir = function f(wasmUtil){
+        if(undefined !== f._) return f._;
+        const pdir = '/persistent';
+        if( !self.FileSystemHandle
+            || !self.FileSystemDirectoryHandle
+            || !self.FileSystemFileHandle){
+            return f._ = "";
+        }
+        try{
+            if(0===wasmUtil.xCallWrapped(
+                'sqlite3_wasm_init_wasmfs', 'i32', ['string'], pdir
+            )){
+                return f._ = pdir;
+            }else{
+                return f._ = "";
+            }
+        }catch(e){
+            // sqlite3_wasm_init_wasmfs() is not available
+            return f._ = "";
+        }
+    };
+    wasmfsDir._ = undefined;
+
+    const eOut = document.querySelector('#test-output');
+    const log2 = function(cssClass,...args){
+        const ln = document.createElement('div');
+        if(cssClass) ln.classList.add(cssClass);
+        ln.append(document.createTextNode(args.join(' ')));
+        eOut.append(ln);
+        //this.e.output.lastElementChild.scrollIntoViewIfNeeded();
+    };
+    const logList = [];
+    const dumpLogList = function(){
+        logList.forEach((v)=>log2('',v));
+        logList.length = 0;
+    };
+    /* can't update DOM while speedtest is running unless we run
+       speedtest in a worker thread. */;
+    const log = (...args)=>{
+        console.log(...args);
+        logList.push(args.join(' '));
+    };
+    const logErr = function(...args){
+        console.error(...args);
+        logList.push('ERROR: '+args.join(' '));
+    };
+
+    const runTests = function(sqlite3){
+        const capi = sqlite3.capi, wasm = sqlite3.wasm;
+        //console.debug('sqlite3 =',sqlite3);
+        const pDir = wasmfsDir(wasm);
+        if(pDir){
+            console.warn("Persistent storage:",pDir);
+        }
+        const scope = wasm.scopedAllocPush();
+        let dbFile = pDir+"/speedtest1.db";
+        const urlParams = new URL(self.location.href).searchParams;
+        const argv = ["speedtest1"];
+        if(urlParams.has('flags')){
+            argv.push(...(urlParams.get('flags').split(',')));
+        }
+
+        let forceSize = 0;
+        let vfs, pVfs = 0;
+        if(urlParams.has('vfs')){
+            vfs = urlParams.get('vfs');
+            pVfs = capi.sqlite3_vfs_find(vfs);
+            if(!pVfs){
+                log2('error',"Unknown VFS:",vfs);
+                return;
+            }
+            argv.push("--vfs", vfs);
+            log2('',"Using VFS:",vfs);
+            if('kvvfs' === vfs){
+                forceSize = 4 /* 5 uses approx. 4.96mb */;
+                dbFile = 'session';
+                log2('warning',"kvvfs VFS: forcing --size",forceSize,
+                     "and filename '"+dbFile+"'.");
+                capi.sqlite3_js_kvvfs_clear(dbFile);
+            }
+        }
+        if(forceSize){
+            argv.push('--size',forceSize);
+        }else{
+            [
+                'size'
+            ].forEach(function(k){
+                const v = urlParams.get(k);
+                if(v) argv.push('--'+k, urlParams[k]);
+            });
+        }
+        argv.push(
+            "--singlethread",
+            //"--nomutex",
+            //"--nosync",
+            //"--memdb", // note that memdb trumps the filename arg
+            "--nomemstat"
+        );
+        argv.push("--big-transactions"/*important for tests 410 and 510!*/,
+                  dbFile);
+        console.log("argv =",argv);
+        // These log messages are not emitted to the UI until after main() returns. Fixing that
+        // requires moving the main() call and related cleanup into a timeout handler.
+        if(pDir) wasm.sqlite3_wasm_vfs_unlink(pVfs,dbFile);
+        log2('',"Starting native app:\n ",argv.join(' '));
+        log2('',"This will take a while and the browser might warn about the runaway JS.",
+             "Give it time...");
+        logList.length = 0;
+        setTimeout(function(){
+            wasm.xCall('wasm_main', argv.length,
+                       wasm.scopedAllocMainArgv(argv));
+            wasm.scopedAllocPop(scope);
+            if('kvvfs'===vfs){
+                logList.unshift("KVVFS "+dbFile+" size = "+
+                                capi.sqlite3_js_kvvfs_size(dbFile));
+            }
+            if(pDir) wasm.sqlite3_wasm_vfs_unlink(pVfs,dbFile);
+            logList.unshift("Done running native main(). Output:");
+            dumpLogList();
+        }, 50);
+    }/*runTests()*/;
+
+    self.sqlite3TestModule.print = log;
+    self.sqlite3TestModule.printErr = logErr;
+    sqlite3InitModule(self.sqlite3TestModule).then(runTests);
+})();</script>
+</body>
+</html>
diff --git a/ext/wasm/split-speedtest1-script.sh b/ext/wasm/split-speedtest1-script.sh
new file mode 100644
index 0000000000000000000000000000000000000000..e072d08a1ed44b71f7e30e64e012d22ffbfe05d3
--- /dev/null
+++ b/ext/wasm/split-speedtest1-script.sh
@@ -0,0 +1,17 @@
+#!/bin/bash
+# Expects $1 to be a (speedtest1 --script) output file. Output is a
+# series of SQL files extracted from that file.
+infile=${1:?arg = speedtest1 --script output file}
+testnums=$(grep -e '^-- begin test' "$infile" | cut -d' ' -f4)
+if [ x = "x${testnums}" ]; then
+  echo "Could not parse any begin/end blocks out of $infile" 1>&2
+  exit 1
+fi
+odir=${infile%%/*}
+if [ "$odir" = "$infile" ]; then odir="."; fi
+#echo testnums=$testnums
+for n in $testnums; do
+  ofile=$odir/$(printf "speedtest1-%03d.sql" $n)
+  sed -n -e "/^-- begin test $n /,/^-- end test $n\$/p" $infile > $ofile
+  echo -e "$n\t$ofile"
+done
diff --git a/ext/wasm/sql/000-mandelbrot.sql b/ext/wasm/sql/000-mandelbrot.sql
new file mode 100644
index 0000000000000000000000000000000000000000..3aa5f5715616537ff2186c08a015b5bb3270969f
--- /dev/null
+++ b/ext/wasm/sql/000-mandelbrot.sql
@@ -0,0 +1,17 @@
+WITH RECURSIVE
+  xaxis(x) AS (VALUES(-2.0) UNION ALL SELECT x+0.05 FROM xaxis WHERE x<1.2),
+  yaxis(y) AS (VALUES(-1.0) UNION ALL SELECT y+0.1 FROM yaxis WHERE y<1.0),
+  m(iter, cx, cy, x, y) AS (
+    SELECT 0, x, y, 0.0, 0.0 FROM xaxis, yaxis
+    UNION ALL
+    SELECT iter+1, cx, cy, x*x-y*y + cx, 2.0*x*y + cy FROM m 
+     WHERE (x*x + y*y) < 4.0 AND iter<28
+  ),
+  m2(iter, cx, cy) AS (
+    SELECT max(iter), cx, cy FROM m GROUP BY cx, cy
+  ),
+  a(t) AS (
+    SELECT group_concat( substr(' .+*#', 1+min(iter/7,4), 1), '') 
+    FROM m2 GROUP BY cy
+  )
+SELECT group_concat(rtrim(t),x'0a') as Mandelbrot FROM a;
diff --git a/ext/wasm/sql/001-sudoku.sql b/ext/wasm/sql/001-sudoku.sql
new file mode 100644
index 0000000000000000000000000000000000000000..53661b1c3521dfbfa05f9311372f1ddac04d8711
--- /dev/null
+++ b/ext/wasm/sql/001-sudoku.sql
@@ -0,0 +1,28 @@
+WITH RECURSIVE
+  input(sud) AS (
+    VALUES('53..7....6..195....98....6.8...6...34..8.3..17...2...6.6....28....419..5....8..79')
+  ),
+  digits(z, lp) AS (
+    VALUES('1', 1)
+    UNION ALL SELECT
+    CAST(lp+1 AS TEXT), lp+1 FROM digits WHERE lp<9
+  ),
+  x(s, ind) AS (
+    SELECT sud, instr(sud, '.') FROM input
+    UNION ALL
+    SELECT
+      substr(s, 1, ind-1) || z || substr(s, ind+1),
+      instr( substr(s, 1, ind-1) || z || substr(s, ind+1), '.' )
+     FROM x, digits AS z
+    WHERE ind>0
+      AND NOT EXISTS (
+            SELECT 1
+              FROM digits AS lp
+             WHERE z.z = substr(s, ((ind-1)/9)*9 + lp, 1)
+                OR z.z = substr(s, ((ind-1)%9) + (lp-1)*9 + 1, 1)
+                OR z.z = substr(s, (((ind-1)/3) % 3) * 3
+                        + ((ind-1)/27) * 27 + lp
+                        + ((lp-1) / 3) * 6, 1)
+         )
+  )
+SELECT s FROM x WHERE ind=0;
diff --git a/ext/wasm/test-opfs-vfs.html b/ext/wasm/test-opfs-vfs.html
new file mode 100644
index 0000000000000000000000000000000000000000..235ef51e9f0df1e3cc51c8665e52f8a40d355f75
--- /dev/null
+++ b/ext/wasm/test-opfs-vfs.html
@@ -0,0 +1,26 @@
+<!doctype html>
+<html lang="en-us">
+  <head>
+    <meta charset="utf-8">
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+    <link rel="shortcut icon" href="data:image/x-icon;," type="image/x-icon">
+    <link rel="stylesheet" href="common/emscripten.css"/>
+    <link rel="stylesheet" href="common/testing.css"/>
+    <title>Async-behind-Sync experiment</title>
+  </head>
+  <body>
+    <header id='titlebar'><span>Async-behind-Sync sqlite3_vfs</span></header>
+    <div>This performs a sanity test of the "opfs" sqlite3_vfs.
+      <strong>See the dev console for all output.</strong>
+    </div>
+    <div>
+      <a href='?delete'>Use this link</a> to delete the persistent OPFS-side db (if any).
+    </div>
+    <div id='test-output'></div>
+    <script>
+      new Worker(
+          "test-opfs-vfs.js?sqlite3.dir=jswasm&"+self.location.search.substr(1)
+      );
+    </script>
+  </body>
+</html>
diff --git a/ext/wasm/test-opfs-vfs.js b/ext/wasm/test-opfs-vfs.js
new file mode 100644
index 0000000000000000000000000000000000000000..96d0eacfc9c261373890645c223aad82a6850de1
--- /dev/null
+++ b/ext/wasm/test-opfs-vfs.js
@@ -0,0 +1,85 @@
+/*
+  2022-09-17
+
+  The author disclaims copyright to this source code.  In place of a
+  legal notice, here is a blessing:
+
+  *   May you do good and not evil.
+  *   May you find forgiveness for yourself and forgive others.
+  *   May you share freely, never taking more than you give.
+
+  ***********************************************************************
+
+  A testing ground for the OPFS VFS.
+*/
+'use strict';
+const tryOpfsVfs = async function(sqlite3){
+  const toss = function(...args){throw new Error(args.join(' '))};
+  const logPrefix = "OPFS tester:";
+  const log = (...args)=>console.log(logPrefix,...args);
+  const warn =  (...args)=>console.warn(logPrefix,...args);
+  const error =  (...args)=>console.error(logPrefix,...args);
+  const opfs = sqlite3.opfs;
+  log("tryOpfsVfs()");
+  if(!sqlite3.opfs){
+    const e = new Error("OPFS is not available.");
+    error(e);
+    throw e;
+  }
+  const capi = sqlite3.capi;
+  const pVfs = capi.sqlite3_vfs_find("opfs") || toss("Missing 'opfs' VFS.");
+  const oVfs = new capi.sqlite3_vfs(pVfs);
+  log("OPFS VFS:",pVfs, oVfs);
+
+  const wait = async (ms)=>{
+    return new Promise((resolve)=>setTimeout(resolve, ms));
+  };
+
+  const urlArgs = new URL(self.location.href).searchParams;
+  const dbFile = "my-persistent.db";
+  if(urlArgs.has('delete')) sqlite3.opfs.unlink(dbFile);
+
+  const db = new sqlite3.oo1.OpfsDb(dbFile,'ct');
+  log("db file:",db.filename);
+  try{
+    if(opfs.entryExists(dbFile)){
+      let n = db.selectValue("select count(*) from sqlite_schema");
+      log("Persistent data found. sqlite_schema entry count =",n);
+    }
+    db.transaction((db)=>{
+      db.exec({
+        sql:[
+          "create table if not exists t(a);",
+          "insert into t(a) values(?),(?),(?);",
+        ],
+        bind: [performance.now() | 0,
+               (performance.now() |0) / 2,
+               (performance.now() |0) / 4]
+      });
+    });
+    log("count(*) from t =",db.selectValue("select count(*) from t"));
+
+    // Some sanity checks of the opfs utility functions...
+    const testDir = '/sqlite3-opfs-'+opfs.randomFilename(12);
+    const aDir = testDir+'/test/dir';
+    await opfs.mkdir(aDir) || toss("mkdir failed");
+    await opfs.mkdir(aDir) || toss("mkdir must pass if the dir exists");
+    await opfs.unlink(testDir+'/test') && toss("delete 1 should have failed (dir not empty)");
+    //await opfs.entryExists(testDir)
+    await opfs.unlink(testDir+'/test/dir') || toss("delete 2 failed");
+    await opfs.unlink(testDir+'/test/dir') && toss("delete 2b should have failed (dir already deleted)");
+    await opfs.unlink(testDir, true) || toss("delete 3 failed");
+    await opfs.entryExists(testDir) && toss("entryExists(",testDir,") should have failed");
+  }finally{
+    db.close();
+  }
+
+  log("Done!");
+}/*tryOpfsVfs()*/;
+
+importScripts('jswasm/sqlite3.js');
+self.sqlite3InitModule()
+  .then((sqlite3)=>tryOpfsVfs(sqlite3))
+  .catch((e)=>{
+    console.error("Error initializing module:",e);
+  });
diff --git a/ext/wasm/tester1-worker.html b/ext/wasm/tester1-worker.html
new file mode 100644
index 0000000000000000000000000000000000000000..e768c3d6c3cfeb0bbb4ef2bc9fea9ad9d69f87d7
--- /dev/null
+++ b/ext/wasm/tester1-worker.html
@@ -0,0 +1,81 @@
+<!doctype html>
+<html lang="en-us">
+  <head>
+    <meta charset="utf-8">
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+    <link rel="shortcut icon" href="data:image/x-icon;," type="image/x-icon">
+    <link rel="stylesheet" href="../common/emscripten.css"/>
+    <link rel="stylesheet" href="../common/testing.css"/>
+    <title>sqlite3 tester #1: Worker thread</title>
+    <style></style>
+  </head>
+  <body>
+    <h1 id='color-target'>sqlite3 tester #1: Worker thread</h1>
+    <div>Variants:
+      <a href='tester1.html' target='tester1.html'>conventional UI thread</a>,
+      <a href='tester1-worker.html' target='tester1-worker.html'>conventional worker</a>,
+      <a href='tester1-esm.html' target='tester1-esm.html'>ESM in UI thread</a>,
+      <a href='tester1-worker.html?esm' target='tester1-worker.html?esm'>ESM worker</a>
+    </div>
+    <div class='input-wrapper'>
+      <input type='checkbox' id='cb-log-reverse'>
+      <label for='cb-log-reverse'>Reverse log order?</label>
+    </div>
+    <div id='test-output'></div>
+    <script>(function(){
+      const logTarget = document.querySelector('#test-output');
+      const logHtml = function(cssClass,...args){
+        const ln = document.createElement('div');
+        if(cssClass){
+          for(const c of (Array.isArray(cssClass) ? cssClass : [cssClass])){
+            ln.classList.add(c);
+          }
+        }
+        ln.append(document.createTextNode(args.join(' ')));
+        logTarget.append(ln);
+      };
+      const cbReverse = document.querySelector('#cb-log-reverse');
+      const cbReverseIt = ()=>{
+        logTarget.classList[cbReverse.checked ? 'add' : 'remove']('reverse');
+      };
+      cbReverse.addEventListener('change',cbReverseIt,true);
+      cbReverseIt();
+      const urlParams = new URL(self.location.href).searchParams;
+      const workerArgs = [];
+      if(urlParams.has('esm')){
+          logHtml('warning',"Attempting to run an ES6 Worker Module, "+
+                  "which is not supported by all browsers! "+
+                  "e.g. Firefox (as of 2023-05) cannot do this.");
+        workerArgs.push("tester1.mjs",{type:"module"});
+        document.querySelectorAll('title,#color-target').forEach((e)=>{
+          e.innerText = "sqlite3 tester #1: ES6 Worker Module";
+        });
+      }else{
+        workerArgs.push("tester1.js?sqlite3.dir=jswasm");
+      }
+      const w = new Worker(...workerArgs);
+      w.onmessage = function({data}){
+        switch(data.type){
+            case 'log':
+              logHtml(data.payload.cssClass, ...data.payload.args);
+              break;
+            case 'error':
+              logHtml('error', ...data.payload.args);
+              break;
+            case 'test-result':{
+                document.querySelector('#color-target').classList.add(
+                    data.payload.pass ? 'tests-pass' : 'tests-fail'
+                );
+                const e = document.querySelector('title');
+                e.innerText = (
+                    data.payload.pass ? 'PASS' : 'FAIL'
+                ) + ': ' + e.innerText;
+                break;
+            }
+            default:
+              logHtml('error',"Unhandled message:",data.type);
+        };
+      };
+    })();</script>
+  </body>
+</html>
diff --git a/ext/wasm/tester1.c-pp.html b/ext/wasm/tester1.c-pp.html
new file mode 100644
index 0000000000000000000000000000000000000000..bbdd8b2233058530cbb9884f97ccb91e6d957c5e
--- /dev/null
+++ b/ext/wasm/tester1.c-pp.html
@@ -0,0 +1,41 @@
+<!doctype html>
+<html lang="en-us">
+  <head>
+    <meta charset="utf-8">
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+    <link rel="shortcut icon" href="data:image/x-icon;," type="image/x-icon">
+    <link rel="stylesheet" href="common/emscripten.css"/>
+    <link rel="stylesheet" href="common/testing.css"/>
+    <title>sqlite3 tester #1:
+//#if target=es6-module
+ES6 Module in UI thread
+//#else
+UI thread
+//#endif
+    </title>
+    <style></style>
+  </head>
+  <body><h1 id='color-target'></h1>
+    <div>Variants:
+      <a href='tester1.html' target='tester1.html'>conventional UI thread</a>,
+      <a href='tester1-worker.html' target='tester1-worker.html'>conventional worker</a>,
+      <a href='tester1-esm.html' target='tester1-esm.html'>ESM in UI thread</a>,
+      <a href='tester1-worker.html?esm' target='tester1-worker.html?esm'>ESM worker</a>
+    </div>
+    <div class='input-wrapper'>
+      <input type='checkbox' id='cb-log-reverse'>
+      <label for='cb-log-reverse'>Reverse log order?</label>
+    </div>
+    <div id='test-output'></div>
+    <script>(function(){
+      document.querySelector('h1').innerHTML =
+        document.querySelector('title').innerHTML;
+    })();</script>
+//#if target=es6-module
+    <script src="tester1.mjs" type="module"></script>
+//#else
+    <script src="jswasm/sqlite3.js"></script>
+    <script src="tester1.js"></script>
+//#endif
+  </body>
+</html>
diff --git a/ext/wasm/tester1.c-pp.js b/ext/wasm/tester1.c-pp.js
new file mode 100644
index 0000000000000000000000000000000000000000..a21a1c330e5136da51ef40dbf8ec0632454920fb
--- /dev/null
+++ b/ext/wasm/tester1.c-pp.js
@@ -0,0 +1,3475 @@
+/*
+  2022-10-12
+
+  The author disclaims copyright to this source code.  In place of a
+  legal notice, here is a blessing:
+
+  *   May you do good and not evil.
+  *   May you find forgiveness for yourself and forgive others.
+  *   May you share freely, never taking more than you give.
+
+  ***********************************************************************
+
+  Main functional and regression tests for the sqlite3 WASM API.
+
+  This mini-framework works like so:
+
+  This script adds a series of test groups, each of which contains an
+  arbitrary number of tests, into a queue. After loading of the
+  sqlite3 WASM/JS module is complete, that queue is processed. If any
+  given test fails, the whole thing fails. This script is built such
+  that it can run from the main UI thread or worker thread. Test
+  groups and individual tests can be assigned a predicate function
+  which determines whether to run them or not, and this is
+  specifically intended to be used to toggle certain tests on or off
+  for the main/worker threads or the availability (or not) of
+  optional features such as int64 support.
+
+  Each test group defines a single state object which gets applied as
+  the test functions' `this` for all tests in that group. Test
+  functions can use that to, e.g., set up a db in an early test and
+  close it in a later test. Each test gets passed the sqlite3
+  namespace object as its only argument.
+*/
+/*
+   This file is intended to be processed by c-pp to inject (or not)
+   code specific to ES6 modules which is illegal in non-module code.
+
+   Non-ES6 module build and ES6 module for the main-thread:
+
+     ./c-pp -f tester1.c-pp.js -o tester1.js
+
+   ES6 worker module build:
+
+     ./c-pp -f tester1.c-pp.js -o tester1-esm.js -Dtarget=es6-module
+*/
+//#if target=es6-module
+import {default as sqlite3InitModule} from './jswasm/sqlite3.mjs';
+globalThis.sqlite3InitModule = sqlite3InitModule;
+//#else
+'use strict';
+//#endif
+(function(self){
+  /**
+     Set up our output channel differently depending
+     on whether we are running in a worker thread or
+     the main (UI) thread.
+  */
+  let logClass;
+  /* Predicate for tests/groups. */
+  const isUIThread = ()=>(globalThis.window===self && globalThis.document);
+  /* Predicate for tests/groups. */
+  const isWorker = ()=>!isUIThread();
+  /* Predicate for tests/groups. */
+  const testIsTodo = ()=>false;
+  const haveWasmCTests = ()=>{
+    return !!wasm.exports.sqlite3__wasm_test_intptr;
+  };
+  const hasOpfs = ()=>{
+    return globalThis.FileSystemHandle
+      && globalThis.FileSystemDirectoryHandle
+      && globalThis.FileSystemFileHandle
+      && globalThis.FileSystemFileHandle.prototype.createSyncAccessHandle
+      && navigator?.storage?.getDirectory;
+  };
+
+  {
+    const mapToString = (v)=>{
+      switch(typeof v){
+          case 'number': case 'string': case 'boolean':
+          case 'undefined': case 'bigint':
+            return ''+v;
+          default: break;
+      }
+      if(null===v) return 'null';
+      if(v instanceof Error){
+        v = {
+          message: v.message,
+          stack: v.stack,
+          errorClass: v.name
+        };
+      }
+      return JSON.stringify(v,undefined,2);
+    };
+    const normalizeArgs = (args)=>args.map(mapToString);
+    if( isUIThread() ){
+      console.log("Running in the UI thread.");
+      const logTarget = document.querySelector('#test-output');
+      logClass = function(cssClass,...args){
+        const ln = document.createElement('div');
+        if(cssClass){
+          for(const c of (Array.isArray(cssClass) ? cssClass : [cssClass])){
+            ln.classList.add(c);
+          }
+        }
+        ln.append(document.createTextNode(normalizeArgs(args).join(' ')));
+        logTarget.append(ln);
+      };
+      const cbReverse = document.querySelector('#cb-log-reverse');
+      //cbReverse.setAttribute('checked','checked');
+      const cbReverseKey = 'tester1:cb-log-reverse';
+      const cbReverseIt = ()=>{
+        logTarget.classList[cbReverse.checked ? 'add' : 'remove']('reverse');
+        //localStorage.setItem(cbReverseKey, cbReverse.checked ? 1 : 0);
+      };
+      cbReverse.addEventListener('change', cbReverseIt, true);
+      /*if(localStorage.getItem(cbReverseKey)){
+        cbReverse.checked = !!(+localStorage.getItem(cbReverseKey));
+      }*/
+      cbReverseIt();
+    }else{ /* Worker thread */
+      console.log("Running in a Worker thread.");
+      logClass = function(cssClass,...args){
+        postMessage({
+          type:'log',
+          payload:{cssClass, args: normalizeArgs(args)}
+        });
+      };
+    }
+  }
+  const reportFinalTestStatus = function(pass){
+    if(isUIThread()){
+      let e = document.querySelector('#color-target');
+      e.classList.add(pass ? 'tests-pass' : 'tests-fail');
+      e = document.querySelector('title');
+      e.innerText = (pass ? 'PASS' : 'FAIL') + ': ' + e.innerText;
+    }else{
+      postMessage({type:'test-result', payload:{pass}});
+    }
+  };
+  const log = (...args)=>{
+    //console.log(...args);
+    logClass('',...args);
+  }
+  const warn = (...args)=>{
+    console.warn(...args);
+    logClass('warning',...args);
+  }
+  const error = (...args)=>{
+    console.error(...args);
+    logClass('error',...args);
+  };
+
+  const toss = (...args)=>{
+    error(...args);
+    throw new Error(args.join(' '));
+  };
+  const tossQuietly = (...args)=>{
+    throw new Error(args.join(' '));
+  };
+
+  const roundMs = (ms)=>Math.round(ms*100)/100;
+
+  /**
+     Helpers for writing sqlite3-specific tests.
+  */
+  const TestUtil = {
+    /** Running total of the number of tests run via
+        this API. */
+    counter: 0,
+    /**
+       If expr is a function, it is called and its result
+       is returned, coerced to a bool, else expr, coerced to
+       a bool, is returned.
+    */
+    toBool: function(expr){
+      return (expr instanceof Function) ? !!expr() : !!expr;
+    },
+    /** Throws if expr is false. If expr is a function, it is called
+        and its result is evaluated. If passed multiple arguments,
+        those after the first are a message string which get applied
+        as an exception message if the assertion fails. The message
+        arguments are concatenated together with a space between each.
+    */
+    assert: function f(expr, ...msg){
+      ++this.counter;
+      if(!this.toBool(expr)){
+        throw new Error(msg.length ? msg.join(' ') : "Assertion failed.");
+      }
+      return this;
+    },
+    /** Calls f() and squelches any exception it throws. If it
+        does not throw, this function throws. */
+    mustThrow: function(f, msg){
+      ++this.counter;
+      let err;
+      try{ f(); } catch(e){err=e;}
+      if(!err) throw new Error(msg || "Expected exception.");
+      return this;
+    },
+    /**
+       Works like mustThrow() but expects filter to be a regex,
+       function, or string to match/filter the resulting exception
+       against. If f() does not throw, this test fails and an Error is
+       thrown. If filter is a regex, the test passes if
+       filter.test(error.message) passes. If it's a function, the test
+       passes if filter(error) returns truthy. If it's a string, the
+       test passes if the filter matches the exception message
+       precisely. In all other cases the test fails, throwing an
+       Error.
+
+       If it throws, msg is used as the error report unless it's falsy,
+       in which case a default is used.
+    */
+    mustThrowMatching: function(f, filter, msg){
+      ++this.counter;
+      let err;
+      try{ f(); } catch(e){err=e;}
+      if(!err) throw new Error(msg || "Expected exception.");
+      let pass = false;
+      if(filter instanceof RegExp) pass = filter.test(err.message);
+      else if(filter instanceof Function) pass = filter(err);
+      else if('string' === typeof filter) pass = (err.message === filter);
+      if(!pass){
+        throw new Error(msg || ("Filter rejected this exception: "+err.message));
+      }
+      return this;
+    },
+    /** Throws if expr is truthy or expr is a function and expr()
+        returns truthy. */
+    throwIf: function(expr, msg){
+      ++this.counter;
+      if(this.toBool(expr)) throw new Error(msg || "throwIf() failed");
+      return this;
+    },
+    /** Throws if expr is falsy or expr is a function and expr()
+        returns falsy. */
+    throwUnless: function(expr, msg){
+      ++this.counter;
+      if(!this.toBool(expr)) throw new Error(msg || "throwUnless() failed");
+      return this;
+    },
+    eqApprox: (v1,v2,factor=0.05)=>(v1>=(v2-factor) && v1<=(v2+factor)),
+    TestGroup: (function(){
+      let groupCounter = 0;
+      const TestGroup = function(name, predicate){
+        this.number = ++groupCounter;
+        this.name = name;
+        this.predicate = predicate;
+        this.tests = [];
+      };
+      TestGroup.prototype = {
+        addTest: function(testObj){
+          this.tests.push(testObj);
+          return this;
+        },
+        run: async function(sqlite3){
+          logClass('group-start',"Group #"+this.number+':',this.name);
+          if(this.predicate){
+            const p = this.predicate(sqlite3);
+            if(!p || 'string'===typeof p){
+              logClass(['warning','skipping-group'],
+                       "SKIPPING group:", p ? p : "predicate says to" );
+              return;
+            }
+          }
+          const assertCount = TestUtil.counter;
+          const groupState = Object.create(null);
+          const skipped = [];
+          let runtime = 0, i = 0;
+          for(const t of this.tests){
+            ++i;
+            const n = this.number+"."+i;
+            logClass('one-test-line', n+":", t.name);
+            if(t.predicate){
+              const p = t.predicate(sqlite3);
+              if(!p || 'string'===typeof p){
+                logClass(['warning','skipping-test'],
+                         "SKIPPING:", p ? p : "predicate says to" );
+                skipped.push( n+': '+t.name );
+                continue;
+              }
+            }
+            const tc = TestUtil.counter, now = performance.now();
+            let rc = t.test.call(groupState, sqlite3);
+            /*if(rc instanceof Promise){
+              rc = rc.catch((e)=>{
+                error("Test failure:",e);
+                throw e;
+              });
+            }*/
+            await rc;
+            const then = performance.now();
+            runtime += then - now;
+            logClass(['faded','one-test-summary'],
+                     TestUtil.counter - tc, 'assertion(s) in',
+                     roundMs(then-now),'ms');
+          }
+          logClass(['green','group-end'],
+                   "#"+this.number+":",
+                   (TestUtil.counter - assertCount),
+                   "assertion(s) in",roundMs(runtime),"ms");
+          if(0 && skipped.length){
+            logClass('warning',"SKIPPED test(s) in group",this.number+":",skipped);
+          }
+        }
+      };
+      return TestGroup;
+    })()/*TestGroup*/,
+    testGroups: [],
+    currentTestGroup: undefined,
+    addGroup: function(name, predicate){
+      this.testGroups.push( this.currentTestGroup =
+                            new this.TestGroup(name, predicate) );
+      return this;
+    },
+    addTest: function(name, callback){
+      let predicate;
+      if(1===arguments.length){
+        this.currentTestGroup.addTest(arguments[0]);
+      }else{
+        this.currentTestGroup.addTest({
+          name, predicate, test: callback
+        });
+      }
+      return this;
+    },
+    runTests: async function(sqlite3){
+      return new Promise(async function(pok,pnok){
+        try {
+          let runtime = 0;
+          for(let g of this.testGroups){
+            const now = performance.now();
+            await g.run(sqlite3);
+            runtime += performance.now() - now;
+          }
+          logClass(['strong','green','full-test-summary'],
+                   "Done running tests.",TestUtil.counter,"assertions in",
+                   roundMs(runtime),'ms');
+          pok();
+          reportFinalTestStatus(true);
+        }catch(e){
+          error(e);
+          pnok(e);
+          reportFinalTestStatus(false);
+        }
+      }.bind(this));
+    }
+  }/*TestUtil*/;
+  const T = TestUtil;
+  T.g = T.addGroup;
+  T.t = T.addTest;
+  let capi, wasm/*assigned after module init*/;
+  const sahPoolConfig = {
+    name: 'opfs-sahpool-tester1',
+    clearOnInit: true,
+    initialCapacity: 6
+  };
+  ////////////////////////////////////////////////////////////////////////
+  // End of infrastructure setup. Now define the tests...
+  ////////////////////////////////////////////////////////////////////////
+
+  ////////////////////////////////////////////////////////////////////
+  T.g('Basic sanity checks')
+    .t({
+      name:'sqlite3_config()',
+      test:function(sqlite3){
+        for(const k of [
+          'SQLITE_CONFIG_GETMALLOC', 'SQLITE_CONFIG_URI'
+        ]){
+          T.assert(capi[k] > 0);
+        }
+        T.assert(capi.SQLITE_MISUSE===capi.sqlite3_config(
+          capi.SQLITE_CONFIG_URI, 1
+        ), "MISUSE because the library has already been initialized.");
+        T.assert(capi.SQLITE_MISUSE === capi.sqlite3_config(
+          // not enough args
+          capi.SQLITE_CONFIG_GETMALLOC
+        ));
+        T.assert(capi.SQLITE_NOTFOUND === capi.sqlite3_config(
+          // unhandled-in-JS config option
+          capi.SQLITE_CONFIG_GETMALLOC, 1
+        ));
+        if(0){
+          log("We cannot _fully_ test sqlite3_config() after the library",
+              "has been initialized (which it necessarily has been to",
+              "set up various bindings) and we cannot shut it down ",
+              "without losing the VFS registrations.");
+          T.assert(0 === capi.sqlite3_config(
+            capi.SQLITE_CONFIG_URI, 1
+          ));
+        }
+      }
+    })/*sqlite3_config()*/
+
+  ////////////////////////////////////////////////////////////////////
+    .t({
+      name: "JS wasm-side allocator",
+      test: function(sqlite3){
+        if(sqlite3.config.useStdAlloc){
+          warn("Using system allocator. This violates the docs and",
+               "may cause grief with certain APIs",
+               "(e.g. sqlite3_deserialize()).");
+          T.assert(wasm.alloc.impl === wasm.exports.malloc)
+            .assert(wasm.dealloc === wasm.exports.free)
+            .assert(wasm.realloc.impl === wasm.exports.realloc);
+        }else{
+          T.assert(wasm.alloc.impl === wasm.exports.sqlite3_malloc)
+            .assert(wasm.dealloc === wasm.exports.sqlite3_free)
+            .assert(wasm.realloc.impl === wasm.exports.sqlite3_realloc);
+        }
+      }
+    })
+    .t('Namespace object checks', function(sqlite3){
+      const wasmCtypes = wasm.ctype;
+      T.assert(wasmCtypes.structs[0].name==='sqlite3_vfs').
+        assert(wasmCtypes.structs[0].members.szOsFile.sizeof>=4).
+        assert(wasmCtypes.structs[1/*sqlite3_io_methods*/
+                                 ].members.xFileSize.offset>0);
+      [ /* Spot-check a handful of constants to make sure they got installed... */
+        'SQLITE_SCHEMA','SQLITE_NULL','SQLITE_UTF8',
+        'SQLITE_STATIC', 'SQLITE_DIRECTONLY',
+        'SQLITE_OPEN_CREATE', 'SQLITE_OPEN_DELETEONCLOSE'
+      ].forEach((k)=>T.assert('number' === typeof capi[k]));
+      [/* Spot-check a few of the WASM API methods. */
+        'alloc', 'dealloc', 'installFunction'
+      ].forEach((k)=>T.assert(wasm[k] instanceof Function));
+
+      T.assert(capi.sqlite3_errstr(capi.SQLITE_IOERR_ACCESS).indexOf("I/O")>=0).
+        assert(capi.sqlite3_errstr(capi.SQLITE_CORRUPT).indexOf('malformed')>0).
+        assert(capi.sqlite3_errstr(capi.SQLITE_OK) === 'not an error');
+
+      try {
+        throw new sqlite3.WasmAllocError;
+      }catch(e){
+        T.assert(e instanceof Error)
+          .assert(e instanceof sqlite3.WasmAllocError)
+          .assert("Allocation failed." === e.message);
+      }
+      try {
+        throw new sqlite3.WasmAllocError("test",{
+          cause: 3
+        });
+      }catch(e){
+        T.assert(3 === e.cause)
+          .assert("test" === e.message);
+      }
+      try {throw new sqlite3.WasmAllocError("test","ing",".")}
+      catch(e){T.assert("test ing ." === e.message)}
+
+      try{ throw new sqlite3.SQLite3Error(capi.SQLITE_SCHEMA) }
+      catch(e){
+        T.assert('SQLITE_SCHEMA' === e.message)
+          .assert(capi.SQLITE_SCHEMA === e.resultCode);
+      }
+      try{ sqlite3.SQLite3Error.toss(capi.SQLITE_CORRUPT,{cause: true}) }
+      catch(e){
+        T.assert('SQLITE_CORRUPT' === e.message)
+          .assert(capi.SQLITE_CORRUPT === e.resultCode)
+          .assert(true===e.cause);
+      }
+      try{ sqlite3.SQLite3Error.toss("resultCode check") }
+      catch(e){
+        T.assert(capi.SQLITE_ERROR === e.resultCode)
+          .assert('resultCode check' === e.message);
+      }
+    })
+  ////////////////////////////////////////////////////////////////////
+    .t('strglob/strlike', function(sqlite3){
+      T.assert(0===capi.sqlite3_strglob("*.txt", "foo.txt")).
+        assert(0!==capi.sqlite3_strglob("*.txt", "foo.xtx")).
+        assert(0===capi.sqlite3_strlike("%.txt", "foo.txt", 0)).
+        assert(0!==capi.sqlite3_strlike("%.txt", "foo.xtx", 0));
+    })
+
+  ////////////////////////////////////////////////////////////////////
+  ;/*end of basic sanity checks*/
+
+  ////////////////////////////////////////////////////////////////////
+  T.g('C/WASM Utilities')
+    .t('sqlite3.wasm namespace', function(sqlite3){
+      // TODO: break this into smaller individual test functions.
+      const w = wasm;
+      const chr = (x)=>x.charCodeAt(0);
+      //log("heap getters...");
+      {
+        const li = [8, 16, 32];
+        if(w.bigIntEnabled) li.push(64);
+        for(const n of li){
+          const bpe = n/8;
+          const s = w.heapForSize(n,false);
+          T.assert(bpe===s.BYTES_PER_ELEMENT).
+            assert(w.heapForSize(s.constructor) === s);
+          const u = w.heapForSize(n,true);
+          T.assert(bpe===u.BYTES_PER_ELEMENT).
+            assert(s!==u).
+            assert(w.heapForSize(u.constructor) === u);
+        }
+      }
+
+      // alloc(), realloc(), allocFromTypedArray()
+      {
+        let m = w.alloc(14);
+        let m2 = w.realloc(m, 16);
+        T.assert(m === m2/* because of alignment */);
+        T.assert(0 === w.realloc(m, 0));
+        m = m2 = 0;
+
+        // Check allocation limits and allocator's responses...
+        T.assert('number' === typeof sqlite3.capi.SQLITE_MAX_ALLOCATION_SIZE);
+        if(!sqlite3.config.useStdAlloc){
+          const tooMuch = sqlite3.capi.SQLITE_MAX_ALLOCATION_SIZE + 1,
+                isAllocErr = (e)=>e instanceof sqlite3.WasmAllocError;
+          T.mustThrowMatching(()=>w.alloc(tooMuch), isAllocErr)
+            .assert(0 === w.alloc.impl(tooMuch))
+            .mustThrowMatching(()=>w.realloc(0, tooMuch), isAllocErr)
+            .assert(0 === w.realloc.impl(0, tooMuch));
+        }
+
+        // Check allocFromTypedArray()...
+        const byteList = [11,22,33]
+        const u = new Uint8Array(byteList);
+        m = w.allocFromTypedArray(u);
+        for(let i = 0; i < u.length; ++i){
+          T.assert(u[i] === byteList[i])
+            .assert(u[i] === w.peek8(m + i));
+        }
+        w.dealloc(m);
+        m = w.allocFromTypedArray(u.buffer);
+        for(let i = 0; i < u.length; ++i){
+          T.assert(u[i] === byteList[i])
+            .assert(u[i] === w.peek8(m + i));
+        }
+
+        w.dealloc(m);
+        T.mustThrowMatching(
+          ()=>w.allocFromTypedArray(1),
+          'Value is not of a supported TypedArray type.'
+        );
+      }
+
+      { // Test peekXYZ()/pokeXYZ()...
+        const m = w.alloc(8);
+        T.assert( 17 === w.poke8(m,17).peek8(m) )
+          .assert( 31987 === w.poke16(m,31987).peek16(m) )
+          .assert( 345678 === w.poke32(m,345678).peek32(m) )
+          .assert(
+            T.eqApprox( 345678.9, w.poke32f(m,345678.9).peek32f(m) )
+          ).assert(
+            T.eqApprox( 4567890123.4, w.poke64f(m, 4567890123.4).peek64f(m) )
+          );
+        if(w.bigIntEnabled){
+          T.assert(
+            BigInt(Number.MAX_SAFE_INTEGER) ===
+              w.poke64(m, Number.MAX_SAFE_INTEGER).peek64(m)
+          );
+        }
+        w.dealloc(m);
+      }
+
+      // isPtr32()
+      {
+        const ip = w.isPtr32;
+        T.assert(ip(0))
+          .assert(!ip(-1))
+          .assert(!ip(1.1))
+          .assert(!ip(0xffffffff))
+          .assert(ip(0x7fffffff))
+          .assert(!ip())
+          .assert(!ip(null)/*might change: under consideration*/)
+        ;
+      }
+
+      //log("jstrlen()...");
+      {
+        T.assert(3 === w.jstrlen("abc")).assert(4 === w.jstrlen("äbc"));
+      }
+
+      //log("jstrcpy()...");
+      {
+        const fillChar = 10;
+        let ua = new Uint8Array(8), rc,
+            refill = ()=>ua.fill(fillChar);
+        refill();
+        rc = w.jstrcpy("hello", ua);
+        T.assert(6===rc).assert(0===ua[5]).assert(chr('o')===ua[4]);
+        refill();
+        ua[5] = chr('!');
+        rc = w.jstrcpy("HELLO", ua, 0, -1, false);
+        T.assert(5===rc).assert(chr('!')===ua[5]).assert(chr('O')===ua[4]);
+        refill();
+        rc = w.jstrcpy("the end", ua, 4);
+        //log("rc,ua",rc,ua);
+        T.assert(4===rc).assert(0===ua[7]).
+          assert(chr('e')===ua[6]).assert(chr('t')===ua[4]);
+        refill();
+        rc = w.jstrcpy("the end", ua, 4, -1, false);
+        T.assert(4===rc).assert(chr(' ')===ua[7]).
+          assert(chr('e')===ua[6]).assert(chr('t')===ua[4]);
+        refill();
+        rc = w.jstrcpy("", ua, 0, 1, true);
+        //log("rc,ua",rc,ua);
+        T.assert(1===rc).assert(0===ua[0]);
+        refill();
+        rc = w.jstrcpy("x", ua, 0, 1, true);
+        //log("rc,ua",rc,ua);
+        T.assert(1===rc).assert(0===ua[0]);
+        refill();
+        rc = w.jstrcpy('äbä', ua, 0, 1, true);
+        T.assert(1===rc, 'Must not write partial multi-byte char.')
+          .assert(0===ua[0]);
+        refill();
+        rc = w.jstrcpy('äbä', ua, 0, 2, true);
+        T.assert(1===rc, 'Must not write partial multi-byte char.')
+          .assert(0===ua[0]);
+        refill();
+        rc = w.jstrcpy('äbä', ua, 0, 2, false);
+        T.assert(2===rc).assert(fillChar!==ua[1]).assert(fillChar===ua[2]);
+      }/*jstrcpy()*/
+
+      //log("cstrncpy()...");
+      {
+        const scope = w.scopedAllocPush();
+        try {
+          let cStr = w.scopedAllocCString("hello");
+          const n = w.cstrlen(cStr);
+          let cpy = w.scopedAlloc(n+10);
+          let rc = w.cstrncpy(cpy, cStr, n+10);
+          T.assert(n+1 === rc).
+            assert("hello" === w.cstrToJs(cpy)).
+            assert(chr('o') === w.peek8(cpy+n-1)).
+            assert(0 === w.peek8(cpy+n));
+          let cStr2 = w.scopedAllocCString("HI!!!");
+          rc = w.cstrncpy(cpy, cStr2, 3);
+          T.assert(3===rc).
+            assert("HI!lo" === w.cstrToJs(cpy)).
+            assert(chr('!') === w.peek8(cpy+2)).
+            assert(chr('l') === w.peek8(cpy+3));
+        }finally{
+          w.scopedAllocPop(scope);
+        }
+      }
+
+      //log("jstrToUintArray()...");
+      {
+        let a = w.jstrToUintArray("hello", false);
+        T.assert(5===a.byteLength).assert(chr('o')===a[4]);
+        a = w.jstrToUintArray("hello", true);
+        T.assert(6===a.byteLength).assert(chr('o')===a[4]).assert(0===a[5]);
+        a = w.jstrToUintArray("äbä", false);
+        T.assert(5===a.byteLength).assert(chr('b')===a[2]);
+        a = w.jstrToUintArray("äbä", true);
+        T.assert(6===a.byteLength).assert(chr('b')===a[2]).assert(0===a[5]);
+      }
+
+      //log("allocCString()...");
+      {
+        const jstr = "hällo, world!";
+        const [cstr, n] = w.allocCString(jstr, true);
+        T.assert(14 === n)
+          .assert(0===w.peek8(cstr+n))
+          .assert(chr('!')===w.peek8(cstr+n-1));
+        w.dealloc(cstr);
+      }
+
+      //log("scopedAlloc() and friends...");
+      {
+        const alloc = w.alloc, dealloc = w.dealloc;
+        w.alloc = w.dealloc = null;
+        T.assert(!w.scopedAlloc.level)
+          .mustThrowMatching(()=>w.scopedAlloc(1), /^No scopedAllocPush/)
+          .mustThrowMatching(()=>w.scopedAllocPush(), /missing alloc/);
+        w.alloc = alloc;
+        T.mustThrowMatching(()=>w.scopedAllocPush(), /missing alloc/);
+        w.dealloc = dealloc;
+        T.mustThrowMatching(()=>w.scopedAllocPop(), /^Invalid state/)
+          .mustThrowMatching(()=>w.scopedAlloc(1), /^No scopedAllocPush/)
+          .mustThrowMatching(()=>w.scopedAlloc.level=0, /read-only/);
+        const asc = w.scopedAllocPush();
+        let asc2;
+        try {
+          const p1 = w.scopedAlloc(16),
+                p2 = w.scopedAlloc(16);
+          T.assert(1===w.scopedAlloc.level)
+            .assert(Number.isFinite(p1))
+            .assert(Number.isFinite(p2))
+            .assert(asc[0] === p1)
+            .assert(asc[1]===p2);
+          asc2 = w.scopedAllocPush();
+          const p3 = w.scopedAlloc(16);
+          T.assert(2===w.scopedAlloc.level)
+            .assert(Number.isFinite(p3))
+            .assert(2===asc.length)
+            .assert(p3===asc2[0]);
+
+          const [z1, z2, z3] = w.scopedAllocPtr(3);
+          T.assert('number'===typeof z1).assert(z2>z1).assert(z3>z2)
+            .assert(0===w.peek32(z1), 'allocPtr() must zero the targets')
+            .assert(0===w.peek32(z3));
+        }finally{
+          // Pop them in "incorrect" order to make sure they behave:
+          w.scopedAllocPop(asc);
+          T.assert(0===asc.length);
+          T.mustThrowMatching(()=>w.scopedAllocPop(asc),
+                              /^Invalid state object/);
+          if(asc2){
+            T.assert(2===asc2.length,'Should be p3 and z1');
+            w.scopedAllocPop(asc2);
+            T.assert(0===asc2.length);
+            T.mustThrowMatching(()=>w.scopedAllocPop(asc2),
+                                /^Invalid state object/);
+          }
+        }
+        T.assert(0===w.scopedAlloc.level);
+        w.scopedAllocCall(function(){
+          T.assert(1===w.scopedAlloc.level);
+          const [cstr, n] = w.scopedAllocCString("hello, world", true);
+          T.assert(12 === n)
+            .assert(0===w.peek8(cstr+n))
+            .assert(chr('d')===w.peek8(cstr+n-1));
+        });
+      }/*scopedAlloc()*/
+
+      //log("xCall()...");
+      {
+        const pJson = w.xCall('sqlite3__wasm_enum_json');
+        T.assert(Number.isFinite(pJson)).assert(w.cstrlen(pJson)>300);
+      }
+
+      //log("xWrap()...");
+      {
+        T.mustThrowMatching(()=>w.xWrap('sqlite3_libversion',null,'i32'),
+                            /requires 0 arg/).
+          assert(w.xWrap.resultAdapter('i32') instanceof Function).
+          assert(w.xWrap.argAdapter('i32') instanceof Function);
+        let fw = w.xWrap('sqlite3_libversion','utf8');
+        T.mustThrowMatching(()=>fw(1), /requires 0 arg/);
+        let rc = fw();
+        T.assert('string'===typeof rc).assert(rc.length>5);
+        rc = w.xCallWrapped('sqlite3__wasm_enum_json','*');
+        T.assert(rc>0 && Number.isFinite(rc));
+        rc = w.xCallWrapped('sqlite3__wasm_enum_json','utf8');
+        T.assert('string'===typeof rc).assert(rc.length>300);
+
+
+        { // 'string:static' argAdapter() sanity checks...
+          let argAd = w.xWrap.argAdapter('string:static');
+          let p0 = argAd('foo'), p1 = argAd('bar');
+          T.assert(w.isPtr(p0) && w.isPtr(p1))
+            .assert(p0 !== p1)
+            .assert(p0 === argAd('foo'))
+            .assert(p1 === argAd('bar'));
+        }
+
+        // 'string:flexible' argAdapter() sanity checks...
+        w.scopedAllocCall(()=>{
+          const argAd = w.xWrap.argAdapter('string:flexible');
+          const cj = (v)=>w.cstrToJs(argAd(v));
+          T.assert('Hi' === cj('Hi'))
+            .assert('hi' === cj(['h','i']))
+            .assert('HI' === cj(new Uint8Array([72, 73])));
+        });
+
+        // jsFuncToWasm()
+        {
+          const fsum3 = (x,y,z)=>x+y+z;
+          fw = w.jsFuncToWasm('i(iii)', fsum3);
+          T.assert(fw instanceof Function)
+            .assert( fsum3 !== fw )
+            .assert( 3 === fw.length )
+            .assert( 6 === fw(1,2,3) );
+          T.mustThrowMatching( ()=>w.jsFuncToWasm('x()', function(){}),
+                               'Invalid signature letter: x');
+        }
+
+        // xWrap(Function,...)
+        {
+          let fp;
+          try {
+            const fmy = function fmy(i,s,d){
+              if(fmy.debug) log("fmy(",...arguments,")");
+              T.assert( 3 === i )
+                .assert( w.isPtr(s) )
+                .assert( w.cstrToJs(s) === 'a string' )
+                .assert( T.eqApprox(1.2, d) );
+              return w.allocCString("hi");
+            };
+            fmy.debug = false;
+            const xwArgs = ['string:dealloc', ['i32', 'string', 'f64']];
+            fw = w.xWrap(fmy, ...xwArgs);
+            const fmyArgs = [3, 'a string', 1.2];
+            let rc = fw(...fmyArgs);
+            T.assert( 'hi' === rc );
+            if(0){
+              /* Retain this as a "reminder to self"...
+
+                 This extra level of indirection does not work: the
+                 string argument is ending up as a null in fmy() but
+                 the numeric arguments are making their ways through
+
+                 What's happening is: installFunction() is creating a
+                 WASM-compatible function instance. When we pass a JS string
+                 into there it's getting coerced into `null` before being passed
+                 on to the lower-level wrapper.
+              */
+              fmy.debug = true;
+              fp = wasm.installFunction('i(isd)', fw);
+              fw = w.functionEntry(fp);
+              rc = fw(...fmyArgs);
+              log("rc =",rc);
+              T.assert( 'hi' === rc );
+              // Similarly, this does not work:
+              //let fpw = w.xWrap(fp, null, [null,null,null]);
+              //rc = fpw(...fmyArgs);
+              //log("rc =",rc);
+              //T.assert( 'hi' === rc );
+            }
+          }finally{
+            wasm.uninstallFunction(fp);
+          }
+        }
+
+        if(haveWasmCTests()){
+          if(!sqlite3.config.useStdAlloc){
+            fw = w.xWrap('sqlite3__wasm_test_str_hello', 'utf8:dealloc',['i32']);
+            rc = fw(0);
+            T.assert('hello'===rc);
+            rc = fw(1);
+            T.assert(null===rc);
+          }
+
+          if(w.bigIntEnabled){
+            w.xWrap.resultAdapter('thrice', (v)=>3n*BigInt(v));
+            w.xWrap.argAdapter('twice', (v)=>2n*BigInt(v));
+            fw = w.xWrap('sqlite3__wasm_test_int64_times2','thrice','twice');
+            rc = fw(1);
+            T.assert(12n===rc);
+
+            w.scopedAllocCall(function(){
+              const pI1 = w.scopedAlloc(8), pI2 = pI1+4;
+              w.pokePtr([pI1, pI2], 0);
+              const f = w.xWrap('sqlite3__wasm_test_int64_minmax',undefined,['i64*','i64*']);
+              const [r1, r2] = w.peek64([pI1, pI2]);
+              T.assert(!Number.isSafeInteger(r1)).assert(!Number.isSafeInteger(r2));
+            });
+          }
+        }
+      }/*xWrap()*/
+    }/*WhWasmUtil*/)
+
+  ////////////////////////////////////////////////////////////////////
+    .t({
+      name: 'sqlite3.StructBinder (jaccwabyt🐇)',
+      predicate: (sqlite3)=>!!sqlite3.wasm.exports.sqlite3__wasm_test_struct
+        || "Built without SQLITE_WASM_ENABLE_C_TESTS",
+      test: function(sqlite3){
+        const S = sqlite3, W = S.wasm;
+        const MyStructDef = {
+          sizeof: 16,
+          members: {
+            p4: {offset: 0, sizeof: 4, signature: "i"},
+            pP: {offset: 4, sizeof: 4, signature: "P"},
+            ro: {offset: 8, sizeof: 4, signature: "i", readOnly: true},
+            cstr: {offset: 12, sizeof: 4, signature: "s"}
+          }
+        };
+        if(W.bigIntEnabled){
+          const m = MyStructDef;
+          m.members.p8 = {offset: m.sizeof, sizeof: 8, signature: "j"};
+          m.sizeof += m.members.p8.sizeof;
+        }
+        const StructType = S.StructBinder.StructType;
+        const K = S.StructBinder('my_struct',MyStructDef);
+        T.mustThrowMatching(()=>K(), /via 'new'/).
+          mustThrowMatching(()=>new K('hi'), /^Invalid pointer/);
+        const k1 = new K(), k2 = new K();
+        try {
+          T.assert(k1.constructor === K).
+            assert(K.isA(k1)).
+            assert(k1 instanceof K).
+            assert(K.prototype.lookupMember('p4').key === '$p4').
+            assert(K.prototype.lookupMember('$p4').name === 'p4').
+            mustThrowMatching(()=>K.prototype.lookupMember('nope'), /not a mapped/).
+            assert(undefined === K.prototype.lookupMember('nope',false)).
+            assert(k1 instanceof StructType).
+            assert(StructType.isA(k1)).
+            mustThrowMatching(()=>k1.$ro = 1, /read-only/);
+          Object.keys(MyStructDef.members).forEach(function(key){
+            key = K.memberKey(key);
+            T.assert(0 == k1[key],
+                     "Expecting allocation to zero the memory "+
+                     "for "+key+" but got: "+k1[key]+
+                     " from "+k1.memoryDump());
+          });
+          T.assert('number' === typeof k1.pointer).
+            mustThrowMatching(()=>k1.pointer = 1, /pointer/);
+          k1.$p4 = 1; k1.$pP = 2;
+          T.assert(1 === k1.$p4).assert(2 === k1.$pP);
+          if(MyStructDef.members.$p8){
+            k1.$p8 = 1/*must not throw despite not being a BigInt*/;
+            k1.$p8 = BigInt(Number.MAX_SAFE_INTEGER * 2);
+            T.assert(BigInt(2 * Number.MAX_SAFE_INTEGER) === k1.$p8);
+          }
+          T.assert(!k1.ondispose);
+          k1.setMemberCString('cstr', "A C-string.");
+          T.assert(Array.isArray(k1.ondispose)).
+            assert(k1.ondispose[0] === k1.$cstr).
+            assert('number' === typeof k1.$cstr).
+            assert('A C-string.' === k1.memberToJsString('cstr'));
+          k1.$pP = k2;
+          T.assert(k1.$pP === k2.pointer);
+          k1.$pP = null/*null is special-cased to 0.*/;
+          T.assert(0===k1.$pP);
+          let ptr = k1.pointer;
+          k1.dispose();
+          T.assert(undefined === k1.pointer).
+            mustThrowMatching(()=>{k1.$pP=1}, /disposed instance/);
+        }finally{
+          k1.dispose();
+          k2.dispose();
+        }
+
+        if(!W.bigIntEnabled){
+          log("Skipping WasmTestStruct tests: BigInt not enabled.");
+          return;
+        }
+
+        const WTStructDesc =
+              W.ctype.structs.filter((e)=>'WasmTestStruct'===e.name)[0];
+        const autoResolvePtr = true /* EXPERIMENTAL */;
+        if(autoResolvePtr){
+          WTStructDesc.members.ppV.signature = 'P';
+        }
+        const WTStruct = S.StructBinder(WTStructDesc);
+        //log(WTStruct.structName, WTStruct.structInfo);
+        const wts = new WTStruct();
+        //log("WTStruct.prototype keys:",Object.keys(WTStruct.prototype));
+        try{
+          T.assert(wts.constructor === WTStruct).
+            assert(WTStruct.memberKeys().indexOf('$ppV')>=0).
+            assert(wts.memberKeys().indexOf('$v8')>=0).
+            assert(!K.isA(wts)).
+            assert(WTStruct.isA(wts)).
+            assert(wts instanceof WTStruct).
+            assert(wts instanceof StructType).
+            assert(StructType.isA(wts)).
+            assert(wts.pointer>0).assert(0===wts.$v4).assert(0n===wts.$v8).
+            assert(0===wts.$ppV).assert(0===wts.$xFunc);
+          const testFunc =
+                W.xGet('sqlite3__wasm_test_struct'/*name gets mangled in -O3 builds!*/);
+          let counter = 0;
+          //log("wts.pointer =",wts.pointer);
+          const wtsFunc = function(arg){
+            /*log("This from a JS function called from C, "+
+              "which itself was called from JS. arg =",arg);*/
+            ++counter;
+            if(3===counter){
+              tossQuietly("Testing exception propagation.");
+            }
+          }
+          wts.$v4 = 10; wts.$v8 = 20;
+          wts.$xFunc = W.installFunction(wtsFunc, wts.memberSignature('xFunc'))
+          T.assert(0===counter).assert(10 === wts.$v4).assert(20n === wts.$v8)
+            .assert(0 === wts.$ppV).assert('number' === typeof wts.$xFunc)
+            .assert(0 === wts.$cstr)
+            .assert(wts.memberIsString('$cstr'))
+            .assert(!wts.memberIsString('$v4'))
+            .assert(null === wts.memberToJsString('$cstr'))
+            .assert(W.functionEntry(wts.$xFunc) instanceof Function);
+          /* It might seem silly to assert that the values match
+             what we just set, but recall that all of those property
+             reads and writes are, via property interceptors,
+             actually marshaling their data to/from a raw memory
+             buffer, so merely reading them back is actually part of
+             testing the struct-wrapping API. */
+
+          testFunc(wts.pointer);
+          //log("wts.pointer, wts.$ppV",wts.pointer, wts.$ppV);
+          T.assert(1===counter).assert(20 === wts.$v4).assert(40n === wts.$v8)
+            .assert(wts.$ppV === wts.pointer)
+            .assert('string' === typeof wts.memberToJsString('cstr'))
+            .assert(wts.memberToJsString('cstr') === wts.memberToJsString('$cstr'))
+            .mustThrowMatching(()=>wts.memberToJsString('xFunc'),
+                               /Invalid member type signature for C-string/)
+          ;
+          testFunc(wts.pointer);
+          T.assert(2===counter).assert(40 === wts.$v4).assert(80n === wts.$v8)
+            .assert(wts.$ppV === wts.pointer);
+          /** The 3rd call to wtsFunc throw from JS, which is called
+              from C, which is called from JS. Let's ensure that
+              that exception propagates back here... */
+          T.mustThrowMatching(()=>testFunc(wts.pointer),/^Testing/);
+          W.uninstallFunction(wts.$xFunc);
+          wts.$xFunc = 0;
+          wts.$ppV = 0;
+          T.assert(!wts.$ppV);
+          //WTStruct.debugFlags(0x03);
+          wts.$ppV = wts;
+          T.assert(wts.pointer === wts.$ppV)
+          wts.setMemberCString('cstr', "A C-string.");
+          T.assert(Array.isArray(wts.ondispose)).
+            assert(wts.ondispose[0] === wts.$cstr).
+            assert('A C-string.' === wts.memberToJsString('cstr'));
+          const ptr = wts.pointer;
+          wts.dispose();
+          T.assert(ptr).assert(undefined === wts.pointer);
+        }finally{
+          wts.dispose();
+        }
+
+        if(1){ // ondispose of other struct instances
+          const s1 = new WTStruct, s2 = new WTStruct, s3 = new WTStruct;
+          T.assert(s1.lookupMember instanceof Function)
+            .assert(s1.addOnDispose instanceof Function);
+          s1.addOnDispose(s2,"testing variadic args");
+          T.assert(2===s1.ondispose.length);
+          s2.addOnDispose(s3);
+          s1.dispose();
+          T.assert(!s2.pointer,"Expecting s2 to be ondispose'd by s1.");
+          T.assert(!s3.pointer,"Expecting s3 to be ondispose'd by s2.");
+        }
+      }
+    }/*StructBinder*/)
+
+  ////////////////////////////////////////////////////////////////////
+    .t('sqlite3.wasm.pstack', function(sqlite3){
+      const P = wasm.pstack;
+      const isAllocErr = (e)=>e instanceof sqlite3.WasmAllocError;
+      const stack = P.pointer;
+      T.assert(0===stack % 8 /* must be 8-byte aligned */);
+      try{
+        const remaining = P.remaining;
+        T.assert(P.quota >= 4096)
+          .assert(remaining === P.quota)
+          .mustThrowMatching(()=>P.alloc(0), isAllocErr)
+          .mustThrowMatching(()=>P.alloc(-1), isAllocErr)
+          .mustThrowMatching(
+            ()=>P.alloc('i33'),
+            (e)=>e instanceof sqlite3.WasmAllocError
+          );
+        ;
+        let p1 = P.alloc(12);
+        T.assert(p1 === stack - 16/*8-byte aligned*/)
+          .assert(P.pointer === p1);
+        let p2 = P.alloc(7);
+        T.assert(p2 === p1-8/*8-byte aligned, stack grows downwards*/)
+          .mustThrowMatching(()=>P.alloc(remaining), isAllocErr)
+          .assert(24 === stack - p2)
+          .assert(P.pointer === p2);
+        let n = remaining - (stack - p2);
+        let p3 = P.alloc(n);
+        T.assert(p3 === stack-remaining)
+          .mustThrowMatching(()=>P.alloc(1), isAllocErr);
+      }finally{
+        P.restore(stack);
+      }
+
+      T.assert(P.pointer === stack);
+      try {
+        const [p1, p2, p3] = P.allocChunks(3,'i32');
+        T.assert(P.pointer === stack-16/*always rounded to multiple of 8*/)
+          .assert(p2 === p1 + 4)
+          .assert(p3 === p2 + 4);
+        T.mustThrowMatching(()=>P.allocChunks(1024, 1024 * 16),
+                            (e)=>e instanceof sqlite3.WasmAllocError)
+      }finally{
+        P.restore(stack);
+      }
+
+      T.assert(P.pointer === stack);
+      try {
+        let [p1, p2, p3] = P.allocPtr(3,false);
+        let sPos = stack-16/*always rounded to multiple of 8*/;
+        T.assert(P.pointer === sPos)
+          .assert(p2 === p1 + 4)
+          .assert(p3 === p2 + 4);
+        [p1, p2, p3] = P.allocPtr(3);
+        T.assert(P.pointer === sPos-24/*3 x 8 bytes*/)
+          .assert(p2 === p1 + 8)
+          .assert(p3 === p2 + 8);
+        p1 = P.allocPtr();
+        T.assert('number'===typeof p1);
+      }finally{
+        P.restore(stack);
+      }
+    }/*pstack tests*/)
+  ////////////////////////////////////////////////////////////////////
+  ;/*end of C/WASM utils checks*/
+
+  T.g('sqlite3_randomness()')
+    .t('To memory buffer', function(sqlite3){
+      const stack = wasm.pstack.pointer;
+      try{
+        const n = 520;
+        const p = wasm.pstack.alloc(n);
+        T.assert(0===wasm.peek8(p))
+          .assert(0===wasm.peek8(p+n-1));
+        T.assert(undefined === capi.sqlite3_randomness(n - 10, p));
+        let j, check = 0;
+        const heap = wasm.heap8u();
+        for(j = 0; j < 10 && 0===check; ++j){
+          check += heap[p + j];
+        }
+        T.assert(check > 0);
+        check = 0;
+        // Ensure that the trailing bytes were not modified...
+        for(j = n - 10; j < n && 0===check; ++j){
+          check += heap[p + j];
+        }
+        T.assert(0===check);
+      }finally{
+        wasm.pstack.restore(stack);
+      }
+    })
+    .t('To byte array', function(sqlite3){
+      const ta = new Uint8Array(117);
+      let i, n = 0;
+      for(i=0; i<ta.byteLength && 0===n; ++i){
+        n += ta[i];
+      }
+      T.assert(0===n)
+        .assert(ta === capi.sqlite3_randomness(ta));
+      for(i=ta.byteLength-10; i<ta.byteLength && 0===n; ++i){
+        n += ta[i];
+      }
+      T.assert(n>0);
+      const t0 = new Uint8Array(0);
+      T.assert(t0 === capi.sqlite3_randomness(t0),
+               "0-length array is a special case");
+    })
+  ;/*end sqlite3_randomness() checks*/
+
+  ////////////////////////////////////////////////////////////////////////
+  T.g('sqlite3.oo1')
+    .t({
+      name:'Create db',
+      //predicate: (sqlite3)=>
+      test: function(sqlite3){
+        const dbFile = '/tester1.db';
+        sqlite3.util.sqlite3__wasm_vfs_unlink(0, dbFile);
+        const db = this.db = new sqlite3.oo1.DB(dbFile, 0 ? 'ct' : 'c');
+        db.onclose = {
+          disposeAfter: [],
+          disposeBefore: [
+            (db)=>{
+              //console.debug("db.onclose.before dropping modules");
+              //sqlite3.capi.sqlite3_drop_modules(db.pointer, 0);
+            }
+          ],
+          before: function(db){
+            while(this.disposeBefore.length){
+              const v = this.disposeBefore.shift();
+              console.debug("db.onclose.before cleaning up:",v);
+              if(wasm.isPtr(v)) wasm.dealloc(v);
+              else if(v instanceof sqlite3.StructBinder.StructType){
+                v.dispose();
+              }else if(v instanceof Function){
+                try{ v(db) } catch(e){
+                  console.warn("beforeDispose() callback threw:",e);
+                }
+              }
+            }
+          },
+          after: function(){
+            while(this.disposeAfter.length){
+              const v = this.disposeAfter.shift();
+              console.debug("db.onclose.after cleaning up:",v);
+              if(wasm.isPtr(v)) wasm.dealloc(v);
+              else if(v instanceof sqlite3.StructBinder.StructType){
+                v.dispose();
+              }else if(v instanceof Function){
+                try{v()} catch(e){/*ignored*/}
+              }
+            }
+          }
+        };
+
+        T.assert(wasm.isPtr(db.pointer))
+          .mustThrowMatching(()=>db.pointer=1, /read-only/)
+          .assert(0===sqlite3.capi.sqlite3_extended_result_codes(db.pointer,1))
+          .assert('main'===db.dbName(0))
+          .assert('string' === typeof db.dbVfsName())
+          .assert(db.pointer === wasm.xWrap.testConvertArg('sqlite3*',db));
+        // Custom db error message handling via sqlite3_prepare_v2/v3()
+        let rc = capi.sqlite3_prepare_v3(db.pointer, {/*invalid*/}, -1, 0, null, null);
+        T.assert(capi.SQLITE_MISUSE === rc)
+          .assert(0 === capi.sqlite3_errmsg(db.pointer).indexOf("Invalid SQL"))
+          .assert(dbFile === db.dbFilename())
+          .assert(!db.dbFilename('nope'));
+        //Sanity check DB.checkRc()...
+        let ex;
+        try{db.checkRc(rc)}
+        catch(e){ex = e}
+        T.assert(ex instanceof sqlite3.SQLite3Error)
+          .assert(capi.SQLITE_MISUSE===ex.resultCode)
+          .assert(0===ex.message.indexOf("SQLITE_MISUSE: sqlite3 result code"))
+          .assert(ex.message.indexOf("Invalid SQL")>0);
+        T.assert(db === db.checkRc(0))
+          .assert(db === sqlite3.oo1.DB.checkRc(db,0))
+          .assert(null === sqlite3.oo1.DB.checkRc(null,0));
+        this.progressHandlerCount = 0;
+        if( wasm.compileOptionUsed('OMIT_PROGRESS_CALLBACK') ){
+          T.assert( !capi.sqlite3_progress_handler );
+        }else{
+          T.assert( !!capi.sqlite3_progress_handler );
+          capi.sqlite3_progress_handler(db, 5, (p)=>{
+            ++this.progressHandlerCount;
+            return 0;
+          }, 0);
+        }
+      }
+    })
+  ////////////////////////////////////////////////////////////////////
+    .t('sqlite3_db_config() and sqlite3_db_status()', function(sqlite3){
+      let rc = capi.sqlite3_db_config(this.db, capi.SQLITE_DBCONFIG_LEGACY_ALTER_TABLE, 0, 0);
+      T.assert(0===rc);
+      rc = capi.sqlite3_db_config(this.db, capi.SQLITE_DBCONFIG_MAX+1, 0);
+      T.assert(capi.SQLITE_MISUSE === rc);
+      rc = capi.sqlite3_db_config(this.db, capi.SQLITE_DBCONFIG_MAINDBNAME, "main");
+      T.assert(0 === rc);
+      const stack = wasm.pstack.pointer;
+      try {
+        const [pCur, pHi] = wasm.pstack.allocChunks(2,'i64');
+        wasm.poke32([pCur, pHi], 0);
+        let [vCur, vHi] = wasm.peek32(pCur, pHi);
+        T.assert(0===vCur).assert(0===vHi);
+        rc = capi.sqlite3_status(capi.SQLITE_STATUS_MEMORY_USED,
+                                 pCur, pHi, 0);
+        [vCur, vHi] = wasm.peek32(pCur, pHi);
+        //console.warn("i32 vCur,vHi",vCur,vHi);
+        T.assert(0 === rc).assert(vCur > 0).assert(vHi >= vCur);
+        if(wasm.bigIntEnabled){
+          // Again in 64-bit. Recall that pCur and pHi are allocated
+          // large enough to account for this re-use.
+          wasm.poke64([pCur, pHi], 0);
+          rc = capi.sqlite3_status64(capi.SQLITE_STATUS_MEMORY_USED,
+                                     pCur, pHi, 0);
+          [vCur, vHi] = wasm.peek64([pCur, pHi]);
+          //console.warn("i64 vCur,vHi",vCur,vHi);
+          T.assert(0 === rc).assert(vCur > 0).assert(vHi >= vCur);
+        }
+      }finally{
+        wasm.pstack.restore(stack);
+      }
+    })
+
+  ////////////////////////////////////////////////////////////////////
+    .t('DB.Stmt', function(sqlite3){
+      let st = this.db.prepare(
+        new TextEncoder('utf-8').encode("select 3 as a")
+      );
+      let rc;
+      try {
+        T.assert(wasm.isPtr(st.pointer))
+          .mustThrowMatching(()=>st.pointer=1, /read-only/)
+          .assert(1===this.db.openStatementCount())
+          .assert(
+            capi.sqlite3_stmt_status(
+              st, capi.SQLITE_STMTSTATUS_RUN, 0
+            ) === 0)
+          .assert(!st._mayGet)
+          .assert('a' === st.getColumnName(0))
+          .mustThrowMatching(()=>st.columnCount=2,
+                             /columnCount property is read-only/)
+          .assert(1===st.columnCount)
+          .assert(0===st.parameterCount)
+          .mustThrow(()=>st.bind(1,null))
+          .assert(true===st.step())
+          .assert(3 === st.get(0))
+          .mustThrow(()=>st.get(1))
+          .mustThrow(()=>st.get(0,~capi.SQLITE_INTEGER))
+          .assert(3 === st.get(0,capi.SQLITE_INTEGER))
+          .assert(3 === st.getInt(0))
+          .assert('3' === st.get(0,capi.SQLITE_TEXT))
+          .assert('3' === st.getString(0))
+          .assert(3.0 === st.get(0,capi.SQLITE_FLOAT))
+          .assert(3.0 === st.getFloat(0))
+          .assert(3 === st.get({}).a)
+          .assert(3 === st.get([])[0])
+          .assert(3 === st.getJSON(0))
+          .assert(st.get(0,capi.SQLITE_BLOB) instanceof Uint8Array)
+          .assert(1===st.get(0,capi.SQLITE_BLOB).length)
+          .assert(st.getBlob(0) instanceof Uint8Array)
+          .assert('3'.charCodeAt(0) === st.getBlob(0)[0])
+          .assert(st._mayGet)
+          .assert(false===st.step())
+          .assert(!st._mayGet)
+          .assert(
+            capi.sqlite3_stmt_status(
+              st, capi.SQLITE_STMTSTATUS_RUN, 0
+            ) > 0);
+
+        T.assert(this.progressHandlerCount>0
+                 || wasm.compileOptionUsed('OMIT_PROGRESS_CALLBACK'),
+                 "Expecting progress callback.").
+          assert(0===capi.sqlite3_strglob("*.txt", "foo.txt")).
+          assert(0!==capi.sqlite3_strglob("*.txt", "foo.xtx")).
+          assert(0===capi.sqlite3_strlike("%.txt", "foo.txt", 0)).
+          assert(0!==capi.sqlite3_strlike("%.txt", "foo.xtx", 0));
+      }finally{
+        rc = st.finalize();
+      }
+      T.assert(!st.pointer)
+        .assert(0===this.db.openStatementCount())
+        .assert(0===rc);
+
+      T.mustThrowMatching(()=>new sqlite3.oo1.Stmt("hi"), function(err){
+        return (err instanceof sqlite3.SQLite3Error)
+          && capi.SQLITE_MISUSE === err.resultCode
+          && 0 < err.message.indexOf("Do not call the Stmt constructor directly.")
+      });
+    })
+
+  ////////////////////////////////////////////////////////////////////////
+    .t('sqlite3_js_...()', function(){
+      const db = this.db;
+      if(1){
+        const vfsList = capi.sqlite3_js_vfs_list();
+        T.assert(vfsList.length>1);
+        wasm.scopedAllocCall(()=>{
+          const vfsArg = (v)=>wasm.xWrap.testConvertArg('sqlite3_vfs*',v);
+          for(const v of vfsList){
+            T.assert('string' === typeof v);
+            const pVfs = capi.sqlite3_vfs_find(v);
+            T.assert(wasm.isPtr(pVfs))
+              .assert(pVfs===vfsArg(v));
+            const vfs = new capi.sqlite3_vfs(pVfs);
+            try { T.assert(vfsArg(vfs)===pVfs) }
+            finally{ vfs.dispose() }
+          }
+        });
+      }
+      /**
+         Trivia: the magic db name ":memory:" does not actually use the
+         "memdb" VFS unless "memdb" is _explicitly_ provided as the VFS
+         name. Instead, it uses the default VFS with an in-memory btree.
+         Thus this.db's VFS may not be memdb even though it's an in-memory
+         db.
+      */
+      const pVfsMem = capi.sqlite3_vfs_find('memdb'),
+            pVfsDflt = capi.sqlite3_vfs_find(0),
+            pVfsDb = capi.sqlite3_js_db_vfs(db.pointer);
+      T.assert(pVfsMem > 0)
+        .assert(pVfsDflt > 0)
+        .assert(pVfsDb > 0)
+        .assert(pVfsMem !== pVfsDflt
+                /* memdb lives on top of the default vfs */)
+        .assert(pVfsDb === pVfsDflt || pVfsdb === pVfsMem)
+      ;
+      /*const vMem = new capi.sqlite3_vfs(pVfsMem),
+        vDflt = new capi.sqlite3_vfs(pVfsDflt),
+        vDb = new capi.sqlite3_vfs(pVfsDb);*/
+      const duv = capi.sqlite3_js_db_uses_vfs;
+      T.assert(pVfsDflt === duv(db.pointer, 0)
+               || pVfsMem === duv(db.pointer,0))
+        .assert(!duv(db.pointer, "foo"))
+      ;
+    }/*sqlite3_js_...()*/)
+
+  ////////////////////////////////////////////////////////////////////
+    .t('Table t', function(sqlite3){
+      const db = this.db;
+      let list = [];
+      this.progressHandlerCount = 0;
+      let rc = db.exec({
+        sql:['CREATE TABLE t(a,b);',
+             // ^^^ using TEMP TABLE breaks the db export test
+             "INSERT INTO t(a,b) VALUES(1,2),(3,4),",
+             "(?,?)"/*intentionally missing semicolon to test for
+                      off-by-one bug in string-to-WASM conversion*/],
+        saveSql: list,
+        bind: [5,6]
+      });
+      //debug("Exec'd SQL:", list);
+      T.assert(rc === db)
+        .assert(2 === list.length)
+        .assert('string'===typeof list[1])
+        .assert(3===db.changes())
+        .assert(this.progressHandlerCount > 0
+                || wasm.compileOptionUsed('OMIT_PROGRESS_CALLBACK'),
+                "Expecting progress callback.")
+      if(wasm.bigIntEnabled){
+        T.assert(3n===db.changes(false,true));
+      }
+      rc = db.exec({
+        sql: "INSERT INTO t(a,b) values('blob',X'6869') RETURNING 13",
+        rowMode: 0
+      });
+      T.assert(Array.isArray(rc))
+        .assert(1===rc.length)
+        .assert(13 === rc[0])
+        .assert(1===db.changes());
+
+      let vals = db.selectValues('select a from t order by a limit 2');
+      T.assert( 2 === vals.length )
+        .assert( 1===vals[0] && 3===vals[1] );
+      vals = db.selectValues('select a from t order by a limit $L',
+                             {$L:2}, capi.SQLITE_TEXT);
+      T.assert( 2 === vals.length )
+        .assert( '1'===vals[0] && '3'===vals[1] );
+      vals = undefined;
+
+      let blob = db.selectValue("select b from t where a='blob'");
+      T.assert(blob instanceof Uint8Array).
+        assert(0x68===blob[0] && 0x69===blob[1]);
+      blob = null;
+      let counter = 0, colNames = [];
+      list.length = 0;
+      db.exec(new TextEncoder('utf-8').encode("SELECT a a, b b FROM t"),{
+        rowMode: 'object',
+        resultRows: list,
+        columnNames: colNames,
+        _myState: 3 /* Accessible from the callback */,
+        callback: function(row,stmt){
+          ++counter;
+          T.assert(
+            3 === this._myState
+            /* Recall that "this" is the options object. */
+          ).assert(
+            this.columnNames===colNames
+          ).assert(
+            this.columnNames[0]==='a' && this.columnNames[1]==='b'
+          ).assert(
+            (row.a%2 && row.a<6) || 'blob'===row.a
+          );
+        }
+      });
+      T.assert(2 === colNames.length)
+        .assert('a' === colNames[0])
+        .assert(4 === counter)
+        .assert(4 === list.length);
+      colNames = [];
+      db.exec({
+        /* Ensure that columnNames is populated for empty result sets. */
+        sql: "SELECT a a, b B FROM t WHERE 0",
+        columnNames: colNames
+      });
+      T.assert(2===colNames.length)
+        .assert('a'===colNames[0] && 'B'===colNames[1]);
+      list.length = 0;
+      db.exec("SELECT a a, b b FROM t",{
+        rowMode: 'array',
+        callback: function(row,stmt){
+          ++counter;
+          T.assert(Array.isArray(row))
+            .assert((0===row[1]%2 && row[1]<7)
+                    || (row[1] instanceof Uint8Array));
+        }
+      });
+      T.assert(8 === counter);
+      T.assert(Number.MIN_SAFE_INTEGER ===
+               db.selectValue("SELECT "+Number.MIN_SAFE_INTEGER)).
+        assert(Number.MAX_SAFE_INTEGER ===
+               db.selectValue("SELECT "+Number.MAX_SAFE_INTEGER));
+      counter = 0;
+      let rv = db.exec({
+        sql: "SELECT a FROM t",
+        callback: ()=>(1===++counter),
+      });
+      T.assert(db === rv)
+        .assert(2===counter,
+               "Expecting exec step() loop to stop if callback returns false.");
+      /** If exec() is passed neither callback nor returnValue but
+          is passed an explicit rowMode then the default returnValue
+          is the whole result set, as if an empty resultRows option
+          had been passed. */
+      rv = db.exec({
+        sql: "SELECT -1 UNION ALL SELECT -2 UNION ALL SELECT -3 ORDER BY 1 DESC",
+        rowMode: 0
+      });
+      T.assert(Array.isArray(rv)).assert(3===rv.length)
+        .assert(-1===rv[0]).assert(-3===rv[2]);
+      rv = db.exec("SELECT 1 WHERE 0",{rowMode: 0});
+      T.assert(Array.isArray(rv)).assert(0===rv.length);
+      if(wasm.bigIntEnabled && haveWasmCTests()){
+        const mI = wasm.xCall('sqlite3__wasm_test_int64_max');
+        const b = BigInt(Number.MAX_SAFE_INTEGER * 2);
+        T.assert(b === db.selectValue("SELECT "+b)).
+          assert(b === db.selectValue("SELECT ?", b)).
+          assert(mI == db.selectValue("SELECT $x", {$x:mI}));
+      }else{
+        /* Curiously, the JS spec seems to be off by one with the definitions
+           of MIN/MAX_SAFE_INTEGER:
+
+           https://github.com/emscripten-core/emscripten/issues/17391 */
+        T.mustThrow(()=>db.selectValue("SELECT "+(Number.MAX_SAFE_INTEGER+1))).
+          mustThrow(()=>db.selectValue("SELECT "+(Number.MIN_SAFE_INTEGER-1)));
+      }
+
+      let st = db.prepare("update t set b=:b where a='blob'");
+      try {
+        T.assert(0===st.columnCount)
+          .assert( false===st.isReadOnly() );
+        const ndx = st.getParamIndex(':b');
+        T.assert(1===ndx);
+        st.bindAsBlob(ndx, "ima blob")
+          /*step() skipped intentionally*/.reset(true);
+      } finally {
+        T.assert(0===st.finalize())
+          .assert(undefined===st.finalize());
+      }
+
+      try {
+        db.prepare("/*empty SQL*/");
+        toss("Must not be reached.");
+      }catch(e){
+        T.assert(e instanceof sqlite3.SQLite3Error)
+          .assert(0==e.message.indexOf('Cannot prepare empty'));
+      }
+
+      counter = 0;
+      db.exec({
+        // Check for https://sqlite.org/forum/forumpost/895425b49a
+        sql: "pragma table_info('t')",
+        rowMode: 'object',
+        callback: function(row){
+          ++counter;
+          T.assert(row.name==='a' || row.name==='b');
+        }
+      });
+      T.assert(2===counter);
+    })/*setup table T*/
+
+  ////////////////////////////////////////////////////////////////////
+    .t({
+      name: "sqlite3_set_authorizer()",
+      predicate: ()=>!!wasm.exports.sqlite3_set_authorizer || "Missing sqlite3_set_authorizer()",
+      test:function(sqlite3){
+        T.assert(capi.SQLITE_IGNORE>0)
+          .assert(capi.SQLITE_DENY>0);
+        const db = this.db;
+        const ssa = capi.sqlite3_set_authorizer;
+        const n = db.selectValue('select count(*) from t');
+        T.assert(n>0);
+        let authCount = 0;
+        let rc = ssa(db, function(pV, iCode, s0, s1, s2, s3){
+          ++authCount;
+          return capi.SQLITE_IGNORE;
+        }, 0);
+        T.assert(0===rc)
+          .assert(
+            undefined === db.selectValue('select count(*) from t')
+            /* Note that the count() never runs, so we get undefined
+               instead of 0. */
+          )
+          .assert(authCount>0);
+        authCount = 0;
+        db.exec("update t set a=-9999");
+        T.assert(authCount>0);
+        /* Reminder: we don't use DELETE because, from the C API docs:
+
+          "If the action code is [SQLITE_DELETE] and the callback
+          returns [SQLITE_IGNORE] then the [DELETE] operation proceeds
+          but the [truncate optimization] is disabled and all rows are
+          deleted individually."
+        */
+        rc = ssa(db, null, 0);
+        authCount = 0;
+        T.assert(-9999 != db.selectValue('select a from t'))
+          .assert(0===authCount);
+        rc = ssa(db, function(pV, iCode, s0, s1, s2, s3){
+          ++authCount;
+          return capi.SQLITE_DENY;
+        }, 0);
+        T.assert(0===rc);
+        let err;
+        try{ db.exec("select 1 from t") }
+        catch(e){ err = e }
+        T.assert(err instanceof sqlite3.SQLite3Error)
+          .assert(err.message.indexOf('not authorized'>0))
+          .assert(1===authCount);
+        authCount = 0;
+        rc = ssa(db, function(...args){
+          ++authCount;
+          return capi.SQLITE_OK;
+        }, 0);
+        T.assert(0===rc);
+        T.assert(n === db.selectValue('select count(*) from t'))
+          .assert(authCount>0);
+        authCount = 0;
+        rc = ssa(db, function(pV, iCode, s0, s1, s2, s3){
+          ++authCount;
+          throw new Error("Testing catching of authorizer.");
+        }, 0);
+        T.assert(0===rc);
+        authCount = 0;
+        err = undefined;
+        try{ db.exec("select 1 from t") }
+        catch(e){err = e}
+        T.assert(err instanceof Error)
+          .assert(err.message.indexOf('not authorized')>0)
+        /* Note that the thrown message is trumped/overwritten
+           by the authorizer process. */
+          .assert(1===authCount);
+        rc = ssa(db, 0, 0);
+        authCount = 0;
+        T.assert(0===rc);
+        T.assert(n === db.selectValue('select count(*) from t'))
+          .assert(0===authCount);
+      }
+    })/*sqlite3_set_authorizer()*/
+
+  ////////////////////////////////////////////////////////////////////////
+    .t("sqlite3_table_column_metadata()", function(sqlite3){
+      const stack = wasm.pstack.pointer;
+      try{
+        const [pzDT, pzColl, pNotNull, pPK, pAuto] =
+              wasm.pstack.allocPtr(5);
+        const rc = capi.sqlite3_table_column_metadata(
+          this.db, "main", "t", "rowid",
+          pzDT, pzColl, pNotNull, pPK, pAuto
+        );
+        T.assert(0===rc)
+          .assert("INTEGER"===wasm.cstrToJs(wasm.peekPtr(pzDT)))
+          .assert("BINARY"===wasm.cstrToJs(wasm.peekPtr(pzColl)))
+          .assert(0===wasm.peek32(pNotNull))
+          .assert(1===wasm.peek32(pPK))
+          .assert(0===wasm.peek32(pAuto))
+      }finally{
+        wasm.pstack.restore(stack);
+      }
+    })
+
+  ////////////////////////////////////////////////////////////////////////
+    .t('selectArray/Object()', function(sqlite3){
+      const db = this.db;
+      let rc = db.selectArray('select a, b from t where a=?', 5);
+      T.assert(Array.isArray(rc))
+        .assert(2===rc.length)
+        .assert(5===rc[0] && 6===rc[1]);
+      rc = db.selectArray('select a, b from t where b=-1');
+      T.assert(undefined === rc);
+      rc = db.selectObject('select a A, b b from t where b=?', 6);
+      T.assert(rc && 'object'===typeof rc)
+        .assert(5===rc.A)
+        .assert(6===rc.b);
+      rc = db.selectArray('select a, b from t where b=-1');
+      T.assert(undefined === rc);
+    })
+  ////////////////////////////////////////////////////////////////////////
+    .t('selectArrays/Objects()', function(sqlite3){
+      const db = this.db;
+      const sql = 'select a, b from t where a=? or b=? order by a';
+      let rc = db.selectArrays(sql, [1, 4]);
+      T.assert(Array.isArray(rc))
+        .assert(2===rc.length)
+        .assert(2===rc[0].length)
+        .assert(1===rc[0][0])
+        .assert(2===rc[0][1])
+        .assert(3===rc[1][0])
+        .assert(4===rc[1][1])
+      rc = db.selectArrays(sql, [99,99]);
+      T.assert(Array.isArray(rc)).assert(0===rc.length);
+      rc = db.selectObjects(sql, [1,4]);
+      T.assert(Array.isArray(rc))
+        .assert(2===rc.length)
+        .assert('object' === typeof rc[1])
+        .assert(1===rc[0].a)
+        .assert(2===rc[0].b)
+        .assert(3===rc[1].a)
+        .assert(4===rc[1].b);
+    })
+  ////////////////////////////////////////////////////////////////////////
+    .t('selectArray/Object/Values() via INSERT/UPDATE...RETURNING', function(sqlite3){
+      let rc = this.db.selectObject("INSERT INTO t(a,b) VALUES(83,84) RETURNING a as AA");
+      T.assert(83===rc.AA);
+      rc = this.db.selectArray("UPDATE T set a=85 WHERE a=83 RETURNING b as BB");
+      T.assert(Array.isArray(rc)).assert(84===rc[0]);
+      //log("select * from t:",this.db.selectObjects("select * from t order by a"));
+      rc = this.db.selectValues("UPDATE T set a=a*1 RETURNING a");
+      T.assert(Array.isArray(rc))
+        .assert(5 === rc.length)
+        .assert('number'===typeof rc[0])
+        .assert(rc[0]|0 === rc[0] /* is small integer */);
+    })
+    ////////////////////////////////////////////////////////////////////////
+    .t({
+      name: 'sqlite3_js_db_export()',
+      predicate: ()=>true,
+      test: function(sqlite3){
+        const db = this.db;
+        const xp = capi.sqlite3_js_db_export(db.pointer);
+        T.assert(xp instanceof Uint8Array)
+          .assert(xp.byteLength>0)
+          .assert(0 === xp.byteLength % 512);
+        this.dbExport = xp;
+      }
+    }/*sqlite3_js_db_export()*/)
+    .t({
+      name: 'sqlite3_js_posix_create_file()',
+      predicate: ()=>true,
+      test: function(sqlite3){
+        const db = this.db;
+        const filename = "sqlite3_js_posix_create_file.db";
+        capi.sqlite3_js_posix_create_file(filename, this.dbExport);
+        delete this.dbExport;
+        const db2 = new sqlite3.oo1.DB(filename,'r');
+        try {
+          const sql = "select count(*) from t";
+          const n = db.selectValue(sql);
+          T.assert(n>0 && db2.selectValue(sql) === n);
+        }finally{
+          db2.close();
+          sqlite3.util.sqlite3__wasm_vfs_unlink(0, filename);
+        }
+      }
+    }/*sqlite3_js_posix_create_file()*/)
+
+  ////////////////////////////////////////////////////////////////////
+    .t({
+      name:'Scalar UDFs',
+      test: function(sqlite3){
+        const db = this.db;
+        db.createFunction("foo",(pCx,a,b)=>a+b);
+        T.assert(7===db.selectValue("select foo(3,4)")).
+          assert(5===db.selectValue("select foo(3,?)",2)).
+          assert(5===db.selectValue("select foo(?,?2)",[1,4])).
+          assert(5===db.selectValue("select foo($a,$b)",{$a:0,$b:5}));
+        db.createFunction("bar", {
+          arity: -1,
+          xFunc: (pCx,...args)=>{
+            T.assert(db.pointer === capi.sqlite3_context_db_handle(pCx));
+            let rc = 0;
+            for(const v of args) rc += v;
+            return rc;
+          }
+        }).createFunction({
+          name: "asis",
+          xFunc: (pCx,arg)=>arg
+        });
+        T.assert(0===db.selectValue("select bar()")).
+          assert(1===db.selectValue("select bar(1)")).
+          assert(3===db.selectValue("select bar(1,2)")).
+          assert(-1===db.selectValue("select bar(1,2,-4)")).
+          assert('hi' === db.selectValue("select asis('hi')")).
+          assert('hi' === db.selectValue("select ?",'hi')).
+          assert(null === db.selectValue("select null")).
+          assert(null === db.selectValue("select asis(null)")).
+          assert(1 === db.selectValue("select ?",1)).
+          assert(2 === db.selectValue("select ?",[2])).
+          assert(3 === db.selectValue("select $a",{$a:3})).
+          assert(T.eqApprox(3.1,db.selectValue("select 3.0 + 0.1"))).
+          assert(T.eqApprox(1.3,db.selectValue("select asis(1 + 0.3)")));
+
+        let blobArg = new Uint8Array([0x68, 0x69]);
+        let blobRc = db.selectValue(
+          "select asis(?1)",
+          blobArg.buffer/*confirm that ArrayBuffer is handled as a Uint8Array*/
+        );
+        T.assert(blobRc instanceof Uint8Array).
+          assert(2 === blobRc.length).
+          assert(0x68==blobRc[0] && 0x69==blobRc[1]);
+        blobRc = db.selectValue("select asis(X'6869')");
+        T.assert(blobRc instanceof Uint8Array).
+          assert(2 === blobRc.length).
+          assert(0x68==blobRc[0] && 0x69==blobRc[1]);
+
+        blobArg = new Int8Array([0x68, 0x69]);
+        //debug("blobArg=",blobArg);
+        blobRc = db.selectValue("select asis(?1)", blobArg);
+        T.assert(blobRc instanceof Uint8Array).
+          assert(2 === blobRc.length);
+        //debug("blobRc=",blobRc);
+        T.assert(0x68==blobRc[0] && 0x69==blobRc[1]);
+
+        let rc = sqlite3.capi.sqlite3_create_function_v2(
+          this.db, "foo", 0, -1, 0, 0, 0, 0, 0
+        );
+        T.assert(
+          sqlite3.capi.SQLITE_FORMAT === rc,
+          "For invalid eTextRep argument."
+        );
+        rc = sqlite3.capi.sqlite3_create_function_v2(this.db, "foo", 0);
+        T.assert(
+          sqlite3.capi.SQLITE_MISUSE === rc,
+          "For invalid arg count."
+        );
+
+        /* Confirm that we can map and unmap the same function with
+           multiple arities... */
+        const fCounts = [0,0];
+        const fArityCheck = function(pCx){
+          return ++fCounts[arguments.length-1];
+        };
+        //wasm.xWrap.FuncPtrAdapter.debugFuncInstall = true;
+        rc = capi.sqlite3_create_function_v2(
+          db, "nary", 0, capi.SQLITE_UTF8, 0, fArityCheck, 0, 0, 0
+        );
+        T.assert( 0===rc );
+        rc = capi.sqlite3_create_function_v2(
+          db, "nary", 1, capi.SQLITE_UTF8, 0, fArityCheck, 0, 0, 0
+        );
+        T.assert( 0===rc );
+        const sqlFArity0 = "select nary()";
+        const sqlFArity1 = "select nary(1)";
+        T.assert( 1 === db.selectValue(sqlFArity0) )
+          .assert( 1 === fCounts[0] ).assert( 0 === fCounts[1] );
+        T.assert( 1 === db.selectValue(sqlFArity1) )
+          .assert( 1 === fCounts[0] ).assert( 1 === fCounts[1] );
+        capi.sqlite3_create_function_v2(
+          db, "nary", 0, capi.SQLITE_UTF8, 0, 0, 0, 0, 0
+        );
+        T.mustThrowMatching((()=>db.selectValue(sqlFArity0)),
+                            (e)=>((e instanceof sqlite3.SQLite3Error)
+                                  && e.message.indexOf("wrong number of arguments")>0),
+                            "0-arity variant was uninstalled.");
+        T.assert( 2 === db.selectValue(sqlFArity1) )
+          .assert( 1 === fCounts[0] ).assert( 2 === fCounts[1] );
+        capi.sqlite3_create_function_v2(
+          db, "nary", 1, capi.SQLITE_UTF8, 0, 0, 0, 0, 0
+        );
+        T.mustThrowMatching((()=>db.selectValue(sqlFArity1)),
+                            (e)=>((e instanceof sqlite3.SQLite3Error)
+                                  && e.message.indexOf("no such function")>0),
+                            "1-arity variant was uninstalled.");
+        //wasm.xWrap.FuncPtrAdapter.debugFuncInstall = false;
+      }
+    })
+
+  ////////////////////////////////////////////////////////////////////
+    .t({
+      name: 'Aggregate UDFs',
+      //predicate: ()=>false,
+      test: function(sqlite3){
+        const db = this.db;
+        const sjac = capi.sqlite3_js_aggregate_context;
+        db.createFunction({
+          name: 'summer',
+          xStep: (pCtx, n)=>{
+            const ac = sjac(pCtx, 4);
+            wasm.poke32(ac, wasm.peek32(ac) + Number(n));
+          },
+          xFinal: (pCtx)=>{
+            const ac = sjac(pCtx, 0);
+            return ac ? wasm.peek32(ac) : 0;
+          }
+        });
+        let v = db.selectValue([
+          "with cte(v) as (",
+          "select 3 union all select 5 union all select 7",
+          ") select summer(v), summer(v+1) from cte"
+          /* ------------------^^^^^^^^^^^ ensures that we're handling
+              sqlite3_aggregate_context() properly. */
+        ]);
+        T.assert(15===v);
+        T.mustThrowMatching(()=>db.selectValue("select summer(1,2)"),
+                            /wrong number of arguments/);
+
+        db.createFunction({
+          name: 'summerN',
+          arity: -1,
+          xStep: (pCtx, ...args)=>{
+            const ac = sjac(pCtx, 4);
+            let sum = wasm.peek32(ac);
+            for(const v of args) sum += Number(v);
+            wasm.poke32(ac, sum);
+          },
+          xFinal: (pCtx)=>{
+            const ac = sjac(pCtx, 0);
+            capi.sqlite3_result_int( pCtx, ac ? wasm.peek32(ac) : 0 );
+            // xFinal() may either return its value directly or call
+            // sqlite3_result_xyz() and return undefined. Both are
+            // functionally equivalent.
+          }
+        });
+        T.assert(18===db.selectValue('select summerN(1,8,9), summerN(2,3,4)'));
+        T.mustThrowMatching(()=>{
+          db.createFunction('nope',{
+            xFunc: ()=>{}, xStep: ()=>{}
+          });
+        }, /scalar or aggregate\?/);
+        T.mustThrowMatching(()=>{
+          db.createFunction('nope',{xStep: ()=>{}});
+        }, /Missing xFinal/);
+        T.mustThrowMatching(()=>{
+          db.createFunction('nope',{xFinal: ()=>{}});
+        }, /Missing xStep/);
+        T.mustThrowMatching(()=>{
+          db.createFunction('nope',{});
+        }, /Missing function-type properties/);
+        T.mustThrowMatching(()=>{
+          db.createFunction('nope',{xFunc:()=>{}, xDestroy:'nope'});
+        }, /xDestroy property must be a function/);
+        T.mustThrowMatching(()=>{
+          db.createFunction('nope',{xFunc:()=>{}, pApp:'nope'});
+        }, /Invalid value for pApp/);
+     }
+    }/*aggregate UDFs*/)
+
+  ////////////////////////////////////////////////////////////////////////
+    .t({
+      name: 'Aggregate UDFs (64-bit)',
+      predicate: ()=>wasm.bigIntEnabled,
+      //predicate: ()=>false,
+      test: function(sqlite3){
+        const db = this.db;
+        const sjac = capi.sqlite3_js_aggregate_context;
+        db.createFunction({
+          name: 'summer64',
+          xStep: (pCtx, n)=>{
+            const ac = sjac(pCtx, 8);
+            wasm.poke64(ac, wasm.peek64(ac) + BigInt(n));
+          },
+          xFinal: (pCtx)=>{
+            const ac = sjac(pCtx, 0);
+            return ac ? wasm.peek64(ac) : 0n;
+          }
+        });
+        let v = db.selectValue([
+          "with cte(v) as (",
+          "select 9007199254740991 union all select 1 union all select 2",
+          ") select summer64(v), summer64(v+1) from cte"
+        ]);
+        T.assert(9007199254740994n===v);
+     }
+    }/*aggregate UDFs*/)
+
+  ////////////////////////////////////////////////////////////////////
+    .t({
+      name: 'Window UDFs',
+      predicate: (sqlite3)=>!!sqlite3.wasm.exports.sqlite3_create_window_function
+      /*!sqlite3.wasm.compileOptionUsed('OMIT_WINDOWFUNC')*/
+        || "Missing window functions",
+      test: function(){
+        /* Example window function, table, and results taken from:
+           https://sqlite.org/windowfunctions.html#udfwinfunc */
+        const db = this.db;
+        const sjac = (cx,n=4)=>capi.sqlite3_js_aggregate_context(cx,n);
+        const xValueFinal = (pCtx)=>{
+          const ac = sjac(pCtx, 0);
+          return ac ? wasm.peek32(ac) : 0;
+        };
+        const xStepInverse = (pCtx, n)=>{
+          const ac = sjac(pCtx);
+          wasm.poke32(ac, wasm.peek32(ac) + Number(n));
+        };
+        db.createFunction({
+          name: 'winsumint',
+          xStep: (pCtx, n)=>xStepInverse(pCtx, n),
+          xInverse: (pCtx, n)=>xStepInverse(pCtx, -n),
+          xFinal: xValueFinal,
+          xValue: xValueFinal
+        });
+        db.exec([
+          "CREATE TEMP TABLE twin(x, y); INSERT INTO twin VALUES",
+          "('a', 4),('b', 5),('c', 3),('d', 8),('e', 1)"
+        ]);
+        let rc = db.exec({
+          returnValue: 'resultRows',
+          sql:[
+            "SELECT x, winsumint(y) OVER (",
+            "ORDER BY x ROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING",
+            ") AS sum_y ",
+            "FROM twin ORDER BY x;"
+          ]
+        });
+        T.assert(Array.isArray(rc))
+          .assert(5 === rc.length);
+        let count = 0;
+        for(const row of rc){
+          switch(++count){
+              case 1: T.assert('a'===row[0] && 9===row[1]); break;
+              case 2: T.assert('b'===row[0] && 12===row[1]); break;
+              case 3: T.assert('c'===row[0] && 16===row[1]); break;
+              case 4: T.assert('d'===row[0] && 12===row[1]); break;
+              case 5: T.assert('e'===row[0] && 9===row[1]); break;
+              default: toss("Too many rows to window function.");
+          }
+        }
+        const resultRows = [];
+        rc = db.exec({
+          resultRows,
+          returnValue: 'resultRows',
+          sql:[
+            "SELECT x, winsumint(y) OVER (",
+            "ORDER BY x ROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING",
+            ") AS sum_y ",
+            "FROM twin ORDER BY x;"
+          ]
+        });
+        T.assert(rc === resultRows)
+          .assert(5 === rc.length);
+
+        rc = db.exec({
+          returnValue: 'saveSql',
+          sql: "select 1; select 2; -- empty\n; select 3"
+        });
+        T.assert(Array.isArray(rc))
+          .assert(3===rc.length)
+          .assert('select 1;' === rc[0])
+          .assert('select 2;' === rc[1])
+          .assert('-- empty\n; select 3' === rc[2]
+                  /* Strange but true. */);
+        T.mustThrowMatching(()=>{
+          db.exec({sql:'', returnValue: 'nope'});
+        }, /^Invalid returnValue/);
+
+        db.exec("DROP TABLE twin");
+      }
+    }/*window UDFs*/)
+
+  ////////////////////////////////////////////////////////////////////
+    .t("ATTACH", function(){
+      const db = this.db;
+      const resultRows = [];
+      db.exec({
+        sql:new TextEncoder('utf-8').encode([
+          // ^^^ testing string-vs-typedarray handling in exec()
+          "attach 'session' as foo;",
+          "create table foo.bar(a);",
+          "insert into foo.bar(a) values(1),(2),(3);",
+          "select a from foo.bar order by a;"
+        ].join('')),
+        rowMode: 0,
+        resultRows
+      });
+      T.assert(3===resultRows.length)
+        .assert(2===resultRows[1]);
+      T.assert(2===db.selectValue('select a from foo.bar where a>1 order by a'));
+
+      /** Demonstrate the JS-simplified form of the sqlite3_exec() callback... */
+      let colCount = 0, rowCount = 0;
+      let rc = capi.sqlite3_exec(
+        db, "select a, a*2 from foo.bar", function(aVals, aNames){
+          //console.warn("execCallback(",arguments,")");
+          colCount = aVals.length;
+          ++rowCount;
+          T.assert(2===aVals.length)
+            .assert(2===aNames.length)
+            .assert(+(aVals[1]) === 2 * +(aVals[0]));
+        }, 0, 0
+      );
+      T.assert(0===rc).assert(3===rowCount).assert(2===colCount);
+      rc = capi.sqlite3_exec(
+        db.pointer, "select a from foo.bar", ()=>{
+          tossQuietly("Testing throwing from exec() callback.");
+        }, 0, 0
+      );
+      T.assert(capi.SQLITE_ABORT === rc);
+
+      /* Demonstrate how to get access to the "full" callback
+         signature, as opposed to the simplified JS-specific one... */
+      rowCount = colCount = 0;
+      const pCb = wasm.installFunction('i(pipp)', function(pVoid,nCols,aVals,aCols){
+        /* Tip: wasm.cArgvToJs() can be used to convert aVals and
+           aCols to arrays: const vals = wasm.cArgvToJs(nCols,
+           aVals); */
+        ++rowCount;
+        colCount = nCols;
+        T.assert(2 === nCols)
+          .assert(wasm.isPtr(pVoid))
+          .assert(wasm.isPtr(aVals))
+          .assert(wasm.isPtr(aCols))
+          .assert(+wasm.cstrToJs(wasm.peekPtr(aVals + wasm.ptrSizeof))
+                  === 2 * +wasm.cstrToJs(wasm.peekPtr(aVals)));
+        return 0;
+      });
+      try {
+        T.assert(wasm.isPtr(pCb));
+        rc = capi.sqlite3_exec(
+          db, new TextEncoder('utf-8').encode("select a, a*2 from foo.bar"),
+          pCb, 0, 0
+        );
+        T.assert(0===rc)
+          .assert(3===rowCount)
+          .assert(2===colCount);
+      }finally{
+        wasm.uninstallFunction(pCb);
+      }
+
+      // Demonstrate that an OOM result does not propagate through sqlite3_exec()...
+      rc = capi.sqlite3_exec(
+        db, ["select a,"," a*2 from foo.bar"], (aVals, aNames)=>{
+          sqlite3.WasmAllocError.toss("just testing");
+        }, 0, 0
+      );
+      T.assert(capi.SQLITE_ABORT === rc);
+
+      db.exec("detach foo");
+      T.mustThrow(()=>db.exec("select * from foo.bar"),
+                  "Because foo is no longer attached.");
+    })
+
+  ////////////////////////////////////////////////////////////////////
+    .t("Read-only", function(sqlite3){
+      T.assert( 0===capi.sqlite3_db_readonly(this.db, "main") );
+      const db = new sqlite3.oo1.DB('file://'+this.db.filename+'?mode=ro');
+      T.assert( 1===capi.sqlite3_db_readonly(db, "main") );
+      T.assert( -1===capi.sqlite3_db_readonly(db, "nope") );
+      db.close();
+    })
+
+  ////////////////////////////////////////////////////////////////////
+    .t({
+      name: 'C-side WASM tests',
+      predicate: ()=>(haveWasmCTests() || "Not compiled in."),
+      test: function(){
+        const w = wasm, db = this.db;
+        const stack = w.scopedAllocPush();
+        let ptrInt;
+        const origValue = 512;
+        try{
+          ptrInt = w.scopedAlloc(4);
+          w.poke32(ptrInt,origValue);
+          const cf = w.xGet('sqlite3__wasm_test_intptr');
+          const oldPtrInt = ptrInt;
+          T.assert(origValue === w.peek32(ptrInt));
+          const rc = cf(ptrInt);
+          T.assert(2*origValue === rc).
+            assert(rc === w.peek32(ptrInt)).
+            assert(oldPtrInt === ptrInt);
+          const pi64 = w.scopedAlloc(8)/*ptr to 64-bit integer*/;
+          const o64 = 0x010203040506/*>32-bit integer*/;
+          if(w.bigIntEnabled){
+            w.poke64(pi64, o64);
+            //log("pi64 =",pi64, "o64 = 0x",o64.toString(16), o64);
+            const v64 = ()=>w.peek64(pi64)
+            T.assert(v64() == o64);
+            //T.assert(o64 === w.peek64(pi64));
+            const cf64w = w.xGet('sqlite3__wasm_test_int64ptr');
+            cf64w(pi64);
+            T.assert(v64() == BigInt(2 * o64));
+            cf64w(pi64);
+            T.assert(v64() == BigInt(4 * o64));
+
+            const biTimes2 = w.xGet('sqlite3__wasm_test_int64_times2');
+            T.assert(BigInt(2 * o64) ===
+                     biTimes2(BigInt(o64)/*explicit conv. required to avoid TypeError
+                                           in the call :/ */));
+
+            const pMin = w.scopedAlloc(16);
+            const pMax = pMin + 8;
+            const g64 = (p)=>w.peek64(p);
+            w.poke64([pMin, pMax], 0);
+            const minMaxI64 = [
+              w.xCall('sqlite3__wasm_test_int64_min'),
+              w.xCall('sqlite3__wasm_test_int64_max')
+            ];
+            T.assert(minMaxI64[0] < BigInt(Number.MIN_SAFE_INTEGER)).
+              assert(minMaxI64[1] > BigInt(Number.MAX_SAFE_INTEGER));
+            //log("int64_min/max() =",minMaxI64, typeof minMaxI64[0]);
+            w.xCall('sqlite3__wasm_test_int64_minmax', pMin, pMax);
+            T.assert(g64(pMin) === minMaxI64[0], "int64 mismatch").
+              assert(g64(pMax) === minMaxI64[1], "int64 mismatch");
+            //log("pMin",g64(pMin), "pMax",g64(pMax));
+            w.poke64(pMin, minMaxI64[0]);
+            T.assert(g64(pMin) === minMaxI64[0]).
+              assert(minMaxI64[0] === db.selectValue("select ?",g64(pMin))).
+              assert(minMaxI64[1] === db.selectValue("select ?",g64(pMax)));
+            const rxRange = /too big/;
+            T.mustThrowMatching(()=>{db.prepare("select ?").bind(minMaxI64[0] - BigInt(1))},
+                                rxRange).
+              mustThrowMatching(()=>{db.prepare("select ?").bind(minMaxI64[1] + BigInt(1))},
+                                (e)=>rxRange.test(e.message));
+          }else{
+            log("No BigInt support. Skipping related tests.");
+            log("\"The problem\" here is that we can manipulate, at the byte level,",
+                "heap memory to set 64-bit values, but we can't get those values",
+                "back into JS because of the lack of 64-bit integer support.");
+          }
+        }finally{
+          const x = w.scopedAlloc(1), y = w.scopedAlloc(1), z = w.scopedAlloc(1);
+          //log("x=",x,"y=",y,"z=",z); // just looking at the alignment
+          w.scopedAllocPop(stack);
+        }
+      }
+    }/* jaccwabyt-specific tests */)
+
+  ////////////////////////////////////////////////////////////////////////
+    .t({
+      name: 'virtual table #1: eponymous w/ manual exception handling',
+      predicate: (sqlite3)=>!!sqlite3.capi.sqlite3_vtab || "Missing vtab support",
+      test: function(sqlite3){
+        const VT = sqlite3.vtab;
+        const tmplCols = Object.assign(Object.create(null),{
+          A: 0, B: 1
+        });
+        /**
+           The vtab demonstrated here is a JS-ification of
+           ext/misc/templatevtab.c.
+        */
+        const tmplMod = new sqlite3.capi.sqlite3_module();
+        T.assert(0===tmplMod.$xUpdate);
+        tmplMod.setupModule({
+          catchExceptions: false,
+          methods: {
+            xConnect: function(pDb, pAux, argc, argv, ppVtab, pzErr){
+              try{
+                const args = wasm.cArgvToJs(argc, argv);
+                T.assert(args.length>=3)
+                  .assert(args[0] === 'testvtab')
+                  .assert(args[1] === 'main')
+                  .assert(args[2] === 'testvtab');
+                //console.debug("xConnect() args =",args);
+                const rc = capi.sqlite3_declare_vtab(
+                  pDb, "CREATE TABLE ignored(a,b)"
+                );
+                if(0===rc){
+                  const t = VT.xVtab.create(ppVtab);
+                  T.assert(t === VT.xVtab.get(wasm.peekPtr(ppVtab)));
+                }
+                return rc;
+              }catch(e){
+                if(!(e instanceof sqlite3.WasmAllocError)){
+                  wasm.dealloc(wasm.peekPtr, pzErr);
+                  wasm.pokePtr(pzErr, wasm.allocCString(e.message));
+                }
+                return VT.xError('xConnect',e);
+              }
+            },
+            xCreate: true /* just for testing. Will be removed afterwards. */,
+            xDisconnect: function(pVtab){
+              try {
+                VT.xVtab.unget(pVtab).dispose();
+                return 0;
+              }catch(e){
+                return VT.xError('xDisconnect',e);
+              }
+            },
+            xOpen: function(pVtab, ppCursor){
+              try{
+                const t = VT.xVtab.get(pVtab),
+                      c = VT.xCursor.create(ppCursor);
+                T.assert(t instanceof capi.sqlite3_vtab)
+                  .assert(c instanceof capi.sqlite3_vtab_cursor);
+                c._rowId = 0;
+                return 0;
+              }catch(e){
+                return VT.xError('xOpen',e);
+              }
+            },
+            xClose: function(pCursor){
+              try{
+                const c = VT.xCursor.unget(pCursor);
+                T.assert(c instanceof capi.sqlite3_vtab_cursor)
+                  .assert(!VT.xCursor.get(pCursor));
+                c.dispose();
+                return 0;
+              }catch(e){
+                return VT.xError('xClose',e);
+              }
+            },
+            xNext: function(pCursor){
+              try{
+                const c = VT.xCursor.get(pCursor);
+                ++c._rowId;
+                return 0;
+              }catch(e){
+                return VT.xError('xNext',e);
+              }
+            },
+            xColumn: function(pCursor, pCtx, iCol){
+              try{
+                const c = VT.xCursor.get(pCursor);
+                switch(iCol){
+                    case tmplCols.A:
+                      capi.sqlite3_result_int(pCtx, 1000 + c._rowId);
+                      break;
+                    case tmplCols.B:
+                      capi.sqlite3_result_int(pCtx, 2000 + c._rowId);
+                      break;
+                    default: sqlite3.SQLite3Error.toss("Invalid column id",iCol);
+                }
+                return 0;
+              }catch(e){
+                return VT.xError('xColumn',e);
+              }
+            },
+            xRowid: function(pCursor, ppRowid64){
+              try{
+                const c = VT.xCursor.get(pCursor);
+                VT.xRowid(ppRowid64, c._rowId);
+                return 0;
+              }catch(e){
+                return VT.xError('xRowid',e);
+              }
+            },
+            xEof: function(pCursor){
+              const c = VT.xCursor.get(pCursor),
+                    rc = c._rowId>=10;
+              return rc;
+            },
+            xFilter: function(pCursor, idxNum, idxCStr,
+                              argc, argv/* [sqlite3_value* ...] */){
+              try{
+                const c = VT.xCursor.get(pCursor);
+                c._rowId = 0;
+                const list = capi.sqlite3_values_to_js(argc, argv);
+                T.assert(argc === list.length);
+                //log(argc,"xFilter value(s):",list);
+                return 0;
+              }catch(e){
+                return VT.xError('xFilter',e);
+              }
+            },
+            xBestIndex: function(pVtab, pIdxInfo){
+              try{
+                //const t = VT.xVtab.get(pVtab);
+                const sii = capi.sqlite3_index_info;
+                const pii = new sii(pIdxInfo);
+                pii.$estimatedRows = 10;
+                pii.$estimatedCost = 10.0;
+                //log("xBestIndex $nConstraint =",pii.$nConstraint);
+                if(pii.$nConstraint>0){
+                  // Validate nthConstraint() and nthConstraintUsage()
+                  const max = pii.$nConstraint;
+                  for(let i=0; i < max; ++i ){
+                    let v = pii.nthConstraint(i,true);
+                    T.assert(wasm.isPtr(v));
+                    v = pii.nthConstraint(i);
+                    T.assert(v instanceof sii.sqlite3_index_constraint)
+                      .assert(v.pointer >= pii.$aConstraint);
+                    v.dispose();
+                    v = pii.nthConstraintUsage(i,true);
+                    T.assert(wasm.isPtr(v));
+                    v = pii.nthConstraintUsage(i);
+                    T.assert(v instanceof sii.sqlite3_index_constraint_usage)
+                      .assert(v.pointer >= pii.$aConstraintUsage);
+                    v.$argvIndex = i;//just to get some values into xFilter
+                    v.dispose();
+                  }
+                }
+                //log("xBestIndex $nOrderBy =",pii.$nOrderBy);
+                if(pii.$nOrderBy>0){
+                  // Validate nthOrderBy()
+                  const max = pii.$nOrderBy;
+                  for(let i=0; i < max; ++i ){
+                    let v = pii.nthOrderBy(i,true);
+                    T.assert(wasm.isPtr(v));
+                    v = pii.nthOrderBy(i);
+                    T.assert(v instanceof sii.sqlite3_index_orderby)
+                      .assert(v.pointer >= pii.$aOrderBy);
+                    v.dispose();
+                  }
+                }
+                pii.dispose();
+                return 0;
+              }catch(e){
+                return VT.xError('xBestIndex',e);
+              }
+            }
+          }
+        });
+        this.db.onclose.disposeAfter.push(tmplMod);
+        T.assert(0===tmplMod.$xUpdate)
+          .assert(tmplMod.$xCreate)
+          .assert(tmplMod.$xCreate === tmplMod.$xConnect,
+                  "setup() must make these equivalent and "+
+                  "installMethods() must avoid re-compiling identical functions");
+        tmplMod.$xCreate = 0 /* make tmplMod eponymous-only */;
+        let rc = capi.sqlite3_create_module(
+          this.db, "testvtab", tmplMod, 0
+        );
+        this.db.checkRc(rc);
+        const list = this.db.selectArrays(
+          "SELECT a,b FROM testvtab where a<9999 and b>1 order by a, b"
+          /* Query is shaped so that it will ensure that some constraints
+             end up in xBestIndex(). */
+        );
+        T.assert(10===list.length)
+          .assert(1000===list[0][0])
+          .assert(2009===list[list.length-1][1]);
+      }
+    })/*custom vtab #1*/
+
+  ////////////////////////////////////////////////////////////////////////
+    .t({
+      name: 'virtual table #2: non-eponymous w/ automated exception wrapping',
+      predicate: (sqlite3)=>!!sqlite3.capi.sqlite3_vtab || "Missing vtab support",
+      test: function(sqlite3){
+        const VT = sqlite3.vtab;
+        const tmplCols = Object.assign(Object.create(null),{
+          A: 0, B: 1
+        });
+        /**
+           The vtab demonstrated here is a JS-ification of
+           ext/misc/templatevtab.c.
+        */
+        let throwOnCreate = 1 ? 0 : capi.SQLITE_CANTOPEN
+        /* ^^^ just for testing exception wrapping. Note that sqlite
+           always translates errors from a vtable to a generic
+           SQLITE_ERROR unless it's from xConnect()/xCreate() and that
+           callback sets an error string. */;
+        const vtabTrace = 1
+              ? ()=>{}
+              : (methodName,...args)=>console.debug('sqlite3_module::'+methodName+'():',...args);
+        const modConfig = {
+          /* catchExceptions changes how the methods are wrapped */
+          catchExceptions: true,
+          name: "vtab2test",
+          methods:{
+            xCreate: function(pDb, pAux, argc, argv, ppVtab, pzErr){
+              vtabTrace("xCreate",...arguments);
+              if(throwOnCreate){
+                sqlite3.SQLite3Error.toss(
+                  throwOnCreate,
+                  "Throwing a test exception."
+                );
+              }
+              const args = wasm.cArgvToJs(argc, argv);
+              vtabTrace("xCreate","argv:",args);
+              T.assert(args.length>=3);
+              const rc = capi.sqlite3_declare_vtab(
+                pDb, "CREATE TABLE ignored(a,b)"
+              );
+              if(0===rc){
+                const t = VT.xVtab.create(ppVtab);
+                T.assert(t === VT.xVtab.get(wasm.peekPtr(ppVtab)));
+                vtabTrace("xCreate",...arguments," ppVtab =",t.pointer);
+              }
+              return rc;
+            },
+            xConnect: true,
+            xDestroy: function(pVtab){
+              vtabTrace("xDestroy/xDisconnect",pVtab);
+              VT.xVtab.dispose(pVtab);
+            },
+            xDisconnect: true,
+            xOpen: function(pVtab, ppCursor){
+              const t = VT.xVtab.get(pVtab),
+                    c = VT.xCursor.create(ppCursor);
+              T.assert(t instanceof capi.sqlite3_vtab)
+                .assert(c instanceof capi.sqlite3_vtab_cursor);
+              vtabTrace("xOpen",...arguments," cursor =",c.pointer);
+              c._rowId = 0;
+            },
+            xClose: function(pCursor){
+              vtabTrace("xClose",...arguments);
+              const c = VT.xCursor.unget(pCursor);
+              T.assert(c instanceof capi.sqlite3_vtab_cursor)
+                .assert(!VT.xCursor.get(pCursor));
+              c.dispose();
+            },
+            xNext: function(pCursor){
+              vtabTrace("xNext",...arguments);
+              const c = VT.xCursor.get(pCursor);
+              ++c._rowId;
+            },
+            xColumn: function(pCursor, pCtx, iCol){
+              vtabTrace("xColumn",...arguments);
+              const c = VT.xCursor.get(pCursor);
+              switch(iCol){
+                  case tmplCols.A:
+                    capi.sqlite3_result_int(pCtx, 1000 + c._rowId);
+                    break;
+                  case tmplCols.B:
+                    capi.sqlite3_result_int(pCtx, 2000 + c._rowId);
+                    break;
+                  default: sqlite3.SQLite3Error.toss("Invalid column id",iCol);
+              }
+            },
+            xRowid: function(pCursor, ppRowid64){
+              vtabTrace("xRowid",...arguments);
+              const c = VT.xCursor.get(pCursor);
+              VT.xRowid(ppRowid64, c._rowId);
+            },
+            xEof: function(pCursor){
+              vtabTrace("xEof",...arguments);
+              return VT.xCursor.get(pCursor)._rowId>=10;
+            },
+            xFilter: function(pCursor, idxNum, idxCStr,
+                              argc, argv/* [sqlite3_value* ...] */){
+              vtabTrace("xFilter",...arguments);
+              const c = VT.xCursor.get(pCursor);
+              c._rowId = 0;
+              const list = capi.sqlite3_values_to_js(argc, argv);
+              T.assert(argc === list.length);
+            },
+            xBestIndex: function(pVtab, pIdxInfo){
+              vtabTrace("xBestIndex",...arguments);
+              //const t = VT.xVtab.get(pVtab);
+              const pii = VT.xIndexInfo(pIdxInfo);
+              pii.$estimatedRows = 10;
+              pii.$estimatedCost = 10.0;
+              pii.dispose();
+            }
+          }/*methods*/
+        };
+        const tmplMod = VT.setupModule(modConfig);
+        T.assert(1===tmplMod.$iVersion);
+        this.db.onclose.disposeAfter.push(tmplMod);
+        this.db.checkRc(capi.sqlite3_create_module(
+          this.db.pointer, modConfig.name, tmplMod.pointer, 0
+        ));
+        this.db.exec([
+          "create virtual table testvtab2 using ",
+          modConfig.name,
+          "(arg1 blah, arg2 bloop)"
+        ]);
+        if(0){
+          /* If we DROP TABLE then xDestroy() is called. If the
+             vtab is instead destroyed when the db is closed,
+             xDisconnect() is called. */
+          this.db.onclose.disposeBefore.push(function(db){
+            console.debug("Explicitly dropping testvtab2 via disposeBefore handler...");
+            db.exec(
+              /** DROP TABLE is the only way to get xDestroy() to be called. */
+              "DROP TABLE testvtab2"
+            );
+          });
+        }
+        let list = this.db.selectArrays(
+          "SELECT a,b FROM testvtab2 where a<9999 and b>1 order by a, b"
+          /* Query is shaped so that it will ensure that some
+             constraints end up in xBestIndex(). */
+        );
+        T.assert(10===list.length)
+          .assert(1000===list[0][0])
+          .assert(2009===list[list.length-1][1]);
+
+        list = this.db.selectArrays(
+          "SELECT a,b FROM testvtab2 where a<9999 and b>1 order by b, a limit 5"
+        );
+        T.assert(5===list.length)
+          .assert(1000===list[0][0])
+          .assert(2004===list[list.length-1][1]);
+
+        // Call it as a table-valued function...
+        list = this.db.selectArrays([
+          "SELECT a,b FROM ", modConfig.name,
+          " where a<9999 and b>1 order by b, a limit 1"
+        ]);
+        T.assert(1===list.length)
+          .assert(1000===list[0][0])
+          .assert(2000===list[0][1]);
+      }
+    })/*custom vtab #2*/
+  ////////////////////////////////////////////////////////////////////////
+    .t('Custom collation', function(sqlite3){
+      let collationCounter = 0;
+      let myCmp = function(pArg,n1,p1,n2,p2){
+        //int (*)(void*,int,const void*,int,const void*)
+        ++collationCounter;
+        const rc = wasm.exports.sqlite3_strnicmp(p1,p2,(n1<n2?n1:n2));
+        return rc ? rc : (n1 - n2);
+      };
+      let rc = capi.sqlite3_create_collation_v2(this.db, "mycollation", capi.SQLITE_UTF8,
+                                                0, myCmp, 0);
+      this.db.checkRc(rc);
+      rc = this.db.selectValue("select 'hi' = 'HI' collate mycollation");
+      T.assert(1===rc).assert(1===collationCounter);
+      rc = this.db.selectValue("select 'hii' = 'HI' collate mycollation");
+      T.assert(0===rc).assert(2===collationCounter);
+      rc = this.db.selectValue("select 'hi' = 'HIi' collate mycollation");
+      T.assert(0===rc).assert(3===collationCounter);
+      rc = capi.sqlite3_create_collation(this.db,"hi",capi.SQLITE_UTF8/*not enough args*/);
+      T.assert(capi.SQLITE_MISUSE === rc);
+      rc = capi.sqlite3_create_collation_v2(this.db,"hi",capi.SQLITE_UTF8+1/*invalid encoding*/,0,0,0);
+      T.assert(capi.SQLITE_FORMAT === rc)
+        .mustThrowMatching(()=>this.db.checkRc(rc),
+                           /SQLITE_UTF8 is the only supported encoding./);
+      /*
+        We need to ensure that replacing that collation function does
+        the right thing. We don't have a handle to the underlying WASM
+        pointer from here, so cannot verify (without digging through
+        internal state) that the old one gets uninstalled, but we can
+        verify that a new one properly replaces it.  (That said,
+        console.warn() output has shown that the uninstallation does
+        happen.)
+      */
+      collationCounter = 0;
+      myCmp = function(pArg,n1,p1,n2,p2){
+        --collationCounter;
+        return 0;
+      };
+      rc = capi.sqlite3_create_collation_v2(this.db, "MYCOLLATION", capi.SQLITE_UTF8,
+                                            0, myCmp, 0);
+      this.db.checkRc(rc);
+      rc = this.db.selectValue("select 'hi' = 'HI' collate mycollation");
+      T.assert(rc>0).assert(-1===collationCounter);
+      rc = this.db.selectValue("select 'a' = 'b' collate mycollation");
+      T.assert(rc>0).assert(-2===collationCounter);
+      rc = capi.sqlite3_create_collation_v2(this.db, "MYCOLLATION", capi.SQLITE_UTF8,
+                                            0, null, 0);
+      this.db.checkRc(rc);
+      rc = 0;
+      try {
+        this.db.selectValue("select 'a' = 'b' collate mycollation");
+      }catch(e){
+        /* Why is e.resultCode not automatically an extended result
+           code? The DB() class enables those automatically. */
+        rc = sqlite3.capi.sqlite3_extended_errcode(this.db);
+      }
+      T.assert(capi.SQLITE_ERROR_MISSING_COLLSEQ === rc);
+    })/*custom collation*/
+
+  ////////////////////////////////////////////////////////////////////////
+    .t('Close db', function(){
+      T.assert(this.db).assert(wasm.isPtr(this.db.pointer));
+      //wasm.sqlite3__wasm_db_reset(this.db); // will leak virtual tables!
+      this.db.close();
+      T.assert(!this.db.pointer);
+    })
+  ;/* end of oo1 checks */
+
+  ////////////////////////////////////////////////////////////////////////
+  T.g('kvvfs')
+    .t({
+      name: 'kvvfs is disabled in worker',
+      predicate: ()=>(isWorker() || "test is only valid in a Worker"),
+      test: function(sqlite3){
+        T.assert(
+          !capi.sqlite3_vfs_find('kvvfs'),
+          "Expecting kvvfs to be unregistered."
+        );
+      }
+    })
+    .t({
+      name: 'kvvfs in main thread',
+      predicate: ()=>(isUIThread()
+                      || "local/sessionStorage are unavailable in a Worker"),
+      test: function(sqlite3){
+        const filename = this.kvvfsDbFile = 'session';
+        const pVfs = capi.sqlite3_vfs_find('kvvfs');
+        T.assert(pVfs);
+        const JDb = this.JDb = sqlite3.oo1.JsStorageDb;
+        const unlink = this.kvvfsUnlink = ()=>JDb.clearStorage(this.kvvfsDbFile);
+        unlink();
+        let db = new JDb(filename);
+        try {
+          db.exec([
+            'create table kvvfs(a);',
+            'insert into kvvfs(a) values(1),(2),(3)'
+          ]);
+          T.assert(3 === db.selectValue('select count(*) from kvvfs'));
+          db.close();
+          db = new JDb(filename);
+          db.exec('insert into kvvfs(a) values(4),(5),(6)');
+          T.assert(6 === db.selectValue('select count(*) from kvvfs'));
+        }finally{
+          db.close();
+        }
+      }
+    }/*kvvfs sanity checks*/)
+//#if enable-see
+    .t({
+      name: 'kvvfs with SEE encryption',
+      predicate: ()=>(isUIThread()
+                      || "Only available in main thread."),
+      test: function(sqlite3){
+        this.kvvfsUnlink();
+        let db;
+        const encOpt1 = 1
+              ? {textkey: 'foo'}
+              : {key: 'foo'};
+        const encOpt2 = encOpt1.textkey
+              ? encOpt1
+              : {hexkey: new Uint8Array([0x66,0x6f,0x6f]/*==>"foo"*/)}
+        try{
+          db = new this.JDb({
+            filename: this.kvvfsDbFile,
+            ...encOpt1
+          });
+          db.exec([
+            "create table t(a,b);",
+            "insert into t(a,b) values(1,2),(3,4)"
+          ]);
+          db.close();
+          let err;
+          try{
+            db = new this.JDb({
+              filename: this.kvvfsDbFile,
+              flags: 'ct'
+            });
+            T.assert(db) /* opening is fine, but... */;
+            db.exec("select 1 from sqlite_schema");
+            console.warn("sessionStorage =",sessionStorage);
+          }catch(e){
+            err = e;
+          }finally{
+            db.close();
+          }
+          T.assert(err,"Expecting an exception")
+            .assert(sqlite3.capi.SQLITE_NOTADB==err.resultCode,
+                    "Expecting NOTADB");
+          db = new sqlite3.oo1.DB({
+            filename: this.kvvfsDbFile,
+            vfs: 'kvvfs',
+            ...encOpt2
+          });
+          T.assert( 4===db.selectValue('select sum(a) from t') );
+        }finally{
+          if( db ) db.close();
+          this.kvvfsUnlink();
+        }
+      }
+    })/*kvvfs with SEE*/
+//#endif enable-see
+  ;/* end kvvfs tests */
+
+  ////////////////////////////////////////////////////////////////////////
+  T.g('Hook APIs')
+    .t({
+      name: "sqlite3_commit/rollback/update_hook()",
+      predicate: ()=>wasm.bigIntEnabled || "Update hook requires int64",
+      test: function(sqlite3){
+        let countCommit = 0, countRollback = 0;;
+        const db = new sqlite3.oo1.DB(':memory:',1 ? 'c' : 'ct');
+        let rc = capi.sqlite3_commit_hook(db, (p)=>{
+          ++countCommit;
+          return (1 === p) ? 0 : capi.SQLITE_ERROR;
+        }, 1);
+        T.assert( 0 === rc /*void pointer*/ );
+
+        // Commit hook...
+        T.assert( 0!=capi.sqlite3_get_autocommit(db) );
+        db.exec("BEGIN; SELECT 1; COMMIT");
+        T.assert(0 === countCommit,
+                 "No-op transactions (mostly) do not trigger commit hook.");
+        db.exec("BEGIN EXCLUSIVE; SELECT 1; COMMIT");
+        T.assert(1 === countCommit,
+                 "But EXCLUSIVE transactions do.");
+        db.transaction((d)=>{
+          T.assert( 0==capi.sqlite3_get_autocommit(db) );
+          d.exec("create table t(a)");
+        });
+        T.assert(2 === countCommit);
+
+        // Rollback hook:
+        rc = capi.sqlite3_rollback_hook(db, (p)=>{
+          ++countRollback;
+          T.assert( 2 === p );
+        }, 2);
+        T.assert( 0 === rc /*void pointer*/ );
+        T.mustThrowMatching(()=>{
+          db.transaction('drop table t',()=>{})
+        }, (e)=>{
+          return (capi.SQLITE_MISUSE === e.resultCode)
+            && ( e.message.indexOf('Invalid argument') > 0 );
+        });
+        T.assert(0 === countRollback, "Transaction was not started.");
+        T.mustThrowMatching(()=>{
+          db.transaction('immediate', ()=>{
+            sqlite3.SQLite3Error.toss(capi.SQLITE_FULL,'testing rollback hook');
+          });
+        }, (e)=>{
+          return capi.SQLITE_FULL === e.resultCode
+        });
+        T.assert(1 === countRollback);
+
+        // Update hook...
+        const countUpdate = Object.create(null);
+        capi.sqlite3_update_hook(db, (p,op,dbName,tbl,rowid)=>{
+          T.assert('main' === dbName.toLowerCase())
+            .assert('t' === tbl.toLowerCase())
+            .assert(3===p)
+            .assert('bigint' === typeof rowid);
+          switch(op){
+              case capi.SQLITE_INSERT:
+              case capi.SQLITE_UPDATE:
+              case capi.SQLITE_DELETE:
+                countUpdate[op] = (countUpdate[op]||0) + 1;
+                break;
+              default: toss("Unexpected hook operator:",op);
+          }
+        }, 3);
+        db.transaction((d)=>{
+          d.exec([
+            "insert into t(a) values(1);",
+            "update t set a=2;",
+            "update t set a=3;",
+            "delete from t where a=3"
+            // update hook is not called for an unqualified DELETE
+          ]);
+        });
+        T.assert(1 === countRollback)
+          .assert(3 === countCommit)
+          .assert(1 === countUpdate[capi.SQLITE_INSERT])
+          .assert(2 === countUpdate[capi.SQLITE_UPDATE])
+          .assert(1 === countUpdate[capi.SQLITE_DELETE]);
+        //wasm.xWrap.FuncPtrAdapter.debugFuncInstall = true;
+        T.assert(1 === capi.sqlite3_commit_hook(db, 0, 0));
+        T.assert(2 === capi.sqlite3_rollback_hook(db, 0, 0));
+        T.assert(3 === capi.sqlite3_update_hook(db, 0, 0));
+        //wasm.xWrap.FuncPtrAdapter.debugFuncInstall = false;
+        db.close();
+      }
+    })/* commit/rollback/update hooks */
+    .t({
+      name: "sqlite3_preupdate_hook()",
+      predicate: ()=>capi.sqlite3_preupdate_hook || "Missing pre-update hook API",
+      test: function(sqlite3){
+        const db = new sqlite3.oo1.DB(':memory:', 1 ? 'c' : 'ct');
+        const countHook = Object.create(null);
+        let rc = capi.sqlite3_preupdate_hook(
+          db, function(p, pDb, op, zDb, zTbl, iKey1, iKey2){
+            T.assert(9 === p)
+              .assert(db.pointer === pDb)
+              .assert(1 === capi.sqlite3_preupdate_count(pDb))
+              .assert( 0 > capi.sqlite3_preupdate_blobwrite(pDb) );
+            countHook[op] = (countHook[op]||0) + 1;
+            switch(op){
+                case capi.SQLITE_INSERT:
+                case capi.SQLITE_UPDATE:
+                 T.assert('number' === typeof capi.sqlite3_preupdate_new_js(pDb, 0));
+                  break;
+                case capi.SQLITE_DELETE:
+                 T.assert('number' === typeof capi.sqlite3_preupdate_old_js(pDb, 0));
+                  break;
+                default: toss("Unexpected hook operator:",op);
+            }
+          },
+          9
+        );
+        db.transaction((d)=>{
+          d.exec([
+            "create table t(a);",
+            "insert into t(a) values(1);",
+            "update t set a=2;",
+            "update t set a=3;",
+            "delete from t where a=3"
+          ]);
+        });
+        T.assert(1 === countHook[capi.SQLITE_INSERT])
+          .assert(2 === countHook[capi.SQLITE_UPDATE])
+          .assert(1 === countHook[capi.SQLITE_DELETE]);
+        //wasm.xWrap.FuncPtrAdapter.debugFuncInstall = true;
+        db.close();
+        //wasm.xWrap.FuncPtrAdapter.debugFuncInstall = false;
+      }
+    })/*pre-update hooks*/
+  ;/*end hook API tests*/
+
+  ////////////////////////////////////////////////////////////////////////
+  T.g('Auto-extension API')
+    .t({
+      name: "Auto-extension sanity checks.",
+      test: function(sqlite3){
+        let counter = 0;
+        const fp = wasm.installFunction('i(ppp)', function(pDb,pzErr,pApi){
+          ++counter;
+          return 0;
+        });
+        (new sqlite3.oo1.DB()).close();
+        T.assert( 0===counter );
+        capi.sqlite3_auto_extension(fp);
+        (new sqlite3.oo1.DB()).close();
+        T.assert( 1===counter );
+        (new sqlite3.oo1.DB()).close();
+        T.assert( 2===counter );
+        capi.sqlite3_cancel_auto_extension(fp);
+        wasm.uninstallFunction(fp);
+        (new sqlite3.oo1.DB()).close();
+        T.assert( 2===counter );
+      }
+    });
+
+  ////////////////////////////////////////////////////////////////////////
+  T.g('Session API')
+    .t({
+      name: 'Session API sanity checks',
+      predicate: ()=>!!capi.sqlite3changegroup_add || "Missing session API",
+      test: function(sqlite3){
+        //warn("The session API tests could use some expansion.");
+        const db1 = new sqlite3.oo1.DB(), db2 = new sqlite3.oo1.DB();
+        const sqlInit = [
+          "create table t(rowid INTEGER PRIMARY KEY,a,b); ",
+          "insert into t(rowid,a,b) values",
+          "(1,'a1','b1'),",
+          "(2,'a2','b2'),",
+          "(3,'a3','b3');"
+        ].join('');
+        db1.exec(sqlInit);
+        db2.exec(sqlInit);
+        T.assert(3 === db1.selectValue("select count(*) from t"))
+          .assert('b3' === db1.selectValue('select b from t where rowid=3'));
+        const stackPtr = wasm.pstack.pointer;
+        try{
+          let ppOut = wasm.pstack.allocPtr();
+          let rc = capi.sqlite3session_create(db1, "main", ppOut);
+          T.assert(0===rc);
+          let pSession = wasm.peekPtr(ppOut);
+          T.assert(pSession && wasm.isPtr(pSession));
+          capi.sqlite3session_table_filter(pSession, (pCtx, tbl)=>{
+            T.assert('t' === tbl).assert( 99 === pCtx );
+            return 1;
+          }, 99);
+          db1.exec([
+            "update t set b='bTwo' where rowid=2;",
+            "update t set a='aThree' where rowid=3;",
+            "delete from t where rowid=1;",
+            "insert into t(rowid,a,b) values(4,'a4','b4')"
+          ]);
+          T.assert('bTwo' === db1.selectValue("select b from t where rowid=2"))
+            .assert(undefined === db1.selectValue('select a from t where rowid=1'))
+            .assert('b4' === db1.selectValue('select b from t where rowid=4'))
+            .assert(3 === db1.selectValue('select count(*) from t'));
+
+          const testSessionEnable =
+                false /* it's not yet clear whether these test failures are
+                         broken tests or broken bindings. */;
+          if(testSessionEnable){
+            rc = capi.sqlite3session_enable(pSession, 0);
+            T.assert( 0 === rc )
+              .assert( 0 === capi.sqlite3session_enable(pSession, -1) );
+            db1.exec("delete from t where rowid=2;");
+            rc = capi.sqlite3session_enable(pSession, 1);
+            T.assert( rc > 0 )
+              .assert( capi.sqlite3session_enable(pSession, -1) > 0 )
+              .assert(undefined === db1.selectValue('select a from t where rowid=2'));
+          }else{
+            //warn("sqlite3session_enable() tests are currently disabled.");
+          }
+          let db1Count = db1.selectValue("select count(*) from t");
+          T.assert( db1Count === (testSessionEnable ? 2 : 3) );
+
+          /* Capture changeset and destroy session. */
+          let pnChanges = wasm.pstack.alloc('i32'),
+              ppChanges = wasm.pstack.allocPtr();
+          rc = capi.sqlite3session_changeset(pSession, pnChanges, ppChanges);
+          T.assert( 0 === rc );
+          capi.sqlite3session_delete(pSession);
+          pSession = 0;
+          const pChanges = wasm.peekPtr(ppChanges),
+                nChanges = wasm.peek32(pnChanges);
+          T.assert( pChanges && wasm.isPtr( pChanges ) )
+            .assert( nChanges > 0 );
+
+          /* Revert db1 via an inverted changeset, but keep pChanges
+             and nChanges for application to db2. */
+          rc = capi.sqlite3changeset_invert( nChanges, pChanges, pnChanges, ppChanges );
+          T.assert( 0 === rc );
+          rc = capi.sqlite3changeset_apply(
+            db1, wasm.peek32(pnChanges), wasm.peekPtr(ppChanges), 0, (pCtx, eConflict, pIter)=>{
+              return 1;
+            }, 0
+          );
+          T.assert( 0 === rc );
+          wasm.dealloc( wasm.peekPtr(ppChanges) );
+          pnChanges = ppChanges = 0;
+          T.assert('b2' === db1.selectValue("select b from t where rowid=2"))
+            .assert('a1' === db1.selectValue('select a from t where rowid=1'))
+            .assert(undefined === db1.selectValue('select b from t where rowid=4'));
+          db1Count = db1.selectValue("select count(*) from t");
+          T.assert(3 === db1Count);
+
+          /* Apply pre-reverted changeset (pChanges, nChanges) to
+             db2... */
+          rc = capi.sqlite3changeset_apply(
+            db2, nChanges, pChanges, 0, (pCtx, eConflict, pIter)=>{
+              return pCtx ? 1 : 0
+            }, 1
+          );
+          wasm.dealloc( pChanges );
+          T.assert( 0 === rc )
+            .assert( 'b4' === db2.selectValue('select b from t where rowid=4') )
+            .assert( 'aThree' === db2.selectValue('select a from t where rowid=3') )
+            .assert( undefined === db2.selectValue('select b from t where rowid=1') );
+          if(testSessionEnable){
+            T.assert( (undefined === db2.selectValue('select b from t where rowid=2')),
+                      "But... the session was disabled when rowid=2 was deleted?" );
+            log("rowids from db2.t:",db2.selectValues('select rowid from t order by rowid'));
+            T.assert( 3 === db2.selectValue('select count(*) from t') );
+          }else{
+            T.assert( 'bTwo' === db2.selectValue('select b from t where rowid=2') )
+              .assert( 3 === db2.selectValue('select count(*) from t') );
+          }
+        }finally{
+          wasm.pstack.restore(stackPtr);
+          db1.close();
+          db2.close();
+        }
+      }
+    })/*session API sanity tests*/
+  ;/*end of session API group*/;
+
+  ////////////////////////////////////////////////////////////////////////
+  T.g('OPFS: Origin-Private File System',
+      (sqlite3)=>(sqlite3.capi.sqlite3_vfs_find("opfs")
+                  || 'requires "opfs" VFS'))
+    .t({
+      name: 'OPFS db sanity checks',
+      test: async function(sqlite3){
+        T.assert(capi.sqlite3_vfs_find('opfs'));
+        const opfs = sqlite3.opfs;
+        const filename = this.opfsDbFile = '/dir/sqlite3-tester1.db';
+        const fileUri = 'file://'+filename+'?delete-before-open=1';
+        const initSql = [
+          'create table p(a);',
+          'insert into p(a) values(1),(2),(3)'
+        ];
+        let db = new sqlite3.oo1.OpfsDb(fileUri);
+        try {
+          db.exec(initSql);
+          T.assert(3 === db.selectValue('select count(*) from p'));
+          db.close();
+          db = new sqlite3.oo1.OpfsDb(filename);
+          db.exec('insert into p(a) values(4),(5),(6)');
+          T.assert(6 === db.selectValue('select count(*) from p'));
+          this.opfsDbExport = capi.sqlite3_js_db_export(db);
+          T.assert(this.opfsDbExport instanceof Uint8Array)
+            .assert(this.opfsDbExport.byteLength>0
+                    && 0===this.opfsDbExport.byteLength % 512);
+        }finally{
+          db.close();
+        }
+        T.assert(await opfs.entryExists(filename));
+        try {
+          db = new sqlite3.oo1.OpfsDb(fileUri);
+          db.exec(initSql) /* will throw if delete-before-open did not work */;
+          T.assert(3 === db.selectValue('select count(*) from p'));
+        }finally{
+          if(db) db.close();
+        }
+      }
+    }/*OPFS db sanity checks*/)
+    .t({
+      name: 'OPFS import',
+      test: async function(sqlite3){
+        let db;
+        const filename = this.opfsDbFile;
+        try {
+          const exp = this.opfsDbExport;
+          delete this.opfsDbExport;
+          this.opfsImportSize = await sqlite3.oo1.OpfsDb.importDb(filename, exp);
+          db = new sqlite3.oo1.OpfsDb(this.opfsDbFile);
+          T.assert(6 === db.selectValue('select count(*) from p')).
+            assert( this.opfsImportSize == exp.byteLength );
+          db.close();
+          const unlink = this.opfsUnlink =
+                (fn=filename)=>sqlite3.util.sqlite3__wasm_vfs_unlink("opfs",fn);
+          this.opfsUnlink(filename);
+          T.assert(!(await sqlite3.opfs.entryExists(filename)));
+          // Try again with a function as an input source:
+          let cursor = 0;
+          const blockSize = 512, end = exp.byteLength;
+          const reader = async function(){
+            if(cursor >= exp.byteLength){
+              return undefined;
+            }
+            const rv = exp.subarray(cursor, cursor+blockSize>end ? end : cursor+blockSize);
+            cursor += blockSize;
+            return rv;
+          };
+          this.opfsImportSize = await sqlite3.oo1.OpfsDb.importDb(filename, reader);
+          db = new sqlite3.oo1.OpfsDb(this.opfsDbFile);
+          T.assert(6 === db.selectValue('select count(*) from p')).
+            assert( this.opfsImportSize == exp.byteLength );
+        }finally{
+          if(db) db.close();
+        }
+      }
+    }/*OPFS export/import*/)
+    .t({
+      name: '(Internal-use) OPFS utility APIs',
+      test: async function(sqlite3){
+        const filename = this.opfsDbFile;
+        const unlink = this.opfsUnlink;
+        T.assert(filename && !!unlink);
+        delete this.opfsDbFile;
+        delete this.opfsUnlink;
+        /**************************************************************
+           ATTENTION CLIENT-SIDE USERS: sqlite3.opfs is NOT intended
+           for client-side use. It is only for this project's own
+           internal use. Its APIs are subject to change or removal at
+           any time.
+        ***************************************************************/
+        const opfs = sqlite3.opfs;
+        const fSize = this.opfsImportSize;
+        delete this.opfsImportSize;
+        let sh;
+        try{
+          T.assert(await opfs.entryExists(filename));
+          const [dirHandle, filenamePart] = await opfs.getDirForFilename(filename, false);
+          const fh = await dirHandle.getFileHandle(filenamePart);
+          sh = await fh.createSyncAccessHandle();
+          T.assert(fSize === await sh.getSize());
+          await sh.close();
+          sh = undefined;
+          unlink();
+          T.assert(!(await opfs.entryExists(filename)));
+        }finally{
+          if(sh) await sh.close();
+          unlink();
+        }
+
+        // Some sanity checks of the opfs utility functions...
+        const testDir = '/sqlite3-opfs-'+opfs.randomFilename(12);
+        const aDir = testDir+'/test/dir';
+        T.assert(await opfs.mkdir(aDir), "mkdir failed")
+          .assert(await opfs.mkdir(aDir), "mkdir must pass if the dir exists")
+          .assert(!(await opfs.unlink(testDir+'/test')), "delete 1 should have failed (dir not empty)")
+          .assert((await opfs.unlink(testDir+'/test/dir')), "delete 2 failed")
+          .assert(!(await opfs.unlink(testDir+'/test/dir')),
+                  "delete 2b should have failed (dir already deleted)")
+          .assert((await opfs.unlink(testDir, true)), "delete 3 failed")
+          .assert(!(await opfs.entryExists(testDir)),
+                  "entryExists(",testDir,") should have failed");
+      }
+    }/*OPFS util sanity checks*/)
+  ;/* end OPFS tests */
+
+  ////////////////////////////////////////////////////////////////////////
+  T.g('OPFS SyncAccessHandle Pool VFS',
+      (sqlite3)=>(hasOpfs() || "requires OPFS APIs"))
+    .t({
+      name: 'SAH sanity checks',
+      test: async function(sqlite3){
+        T.assert(!sqlite3.capi.sqlite3_vfs_find(sahPoolConfig.name))
+          .assert(sqlite3.capi.sqlite3_js_vfs_list().indexOf(sahPoolConfig.name) < 0)
+        const inst = sqlite3.installOpfsSAHPoolVfs,
+              catcher = (e)=>{
+                error("Cannot load SAH pool VFS.",
+                      "This might not be a problem,",
+                      "depending on the environment.");
+                return false;
+              };
+        let u1, u2;
+        // Ensure that two immediately-consecutive installations
+        // resolve to the same Promise instead of triggering
+        // a locking error.
+        const P1 = inst(sahPoolConfig).then(u=>u1 = u).catch(catcher),
+              P2 = inst(sahPoolConfig).then(u=>u2 = u).catch(catcher);
+        await Promise.all([P1, P2]);
+        if(!(await P1)) return;
+        T.assert(u1 === u2)
+          .assert(sahPoolConfig.name === u1.vfsName)
+          .assert(sqlite3.capi.sqlite3_vfs_find(sahPoolConfig.name))
+          .assert(u1.getCapacity() >= sahPoolConfig.initialCapacity
+                  /* If a test fails before we get to nuke the VFS, we
+                     can have more than the initial capacity on the next
+                     run. */)
+          .assert(u1.getCapacity() + 2 === (await u2.addCapacity(2)))
+          .assert(2 === (await u2.reduceCapacity(2)))
+          .assert(sqlite3.capi.sqlite3_js_vfs_list().indexOf(sahPoolConfig.name) >= 0);
+
+        T.assert(0 === u1.getFileCount());
+        const dbName = '/foo.db';
+        let db = new u1.OpfsSAHPoolDb(dbName);
+        T.assert(db instanceof sqlite3.oo1.DB)
+          .assert(1 === u1.getFileCount());
+        db.exec([
+          'pragma locking_mode=exclusive;',
+          'pragma journal_mode=wal;'
+          /* WAL mode only works in this VFS if locking_mode=exclusive
+             is invoked prior to the first db access, as this build
+             does not have the shared-memory APIs needed for WAL without
+             exclusive-mode locking. See:
+
+             https://sqlite.org/wal.html#use_of_wal_without_shared_memory
+
+             Note that WAL mode here DOES NOT add any concurrency capabilities
+             to this VFS, but it MAY provide slightly improved performance
+             over the other journaling modes.
+          */,
+          'create table t(a);',
+          'insert into t(a) values(1),(2),(3)'
+        ]);
+        T.assert(2 === u1.getFileCount() /* one is the journal file */)
+          .assert(3 === db.selectValue('select count(*) from t'))
+          .assert(
+            'wal'===db.selectValue('pragma journal_mode')
+              || wasm.compileOptionUsed('OMIT_WAL')
+          );
+        db.close();
+        T.assert(1 === u1.getFileCount());
+        db = new u2.OpfsSAHPoolDb(dbName);
+        T.assert(1 === u1.getFileCount());
+        db.close();
+        const fileNames = u1.getFileNames();
+        T.assert(1 === fileNames.length)
+          .assert(dbName === fileNames[0])
+          .assert(1 === u1.getFileCount())
+
+        if(1){ // test exportFile() and importDb()
+          const dbytes = u1.exportFile(dbName);
+          T.assert(dbytes.length >= 4096);
+          const dbName2 = '/exported.db';
+          let nWrote = u1.importDb(dbName2, dbytes);
+          T.assert( 2 == u1.getFileCount() )
+            .assert( dbytes.byteLength == nWrote );
+          let db2 = new u1.OpfsSAHPoolDb(dbName2);
+          T.assert(db2 instanceof sqlite3.oo1.DB)
+            .assert('wal' !== db2.selectValue("pragma journal_mode")
+                    /* importDb() unsets the WAL-mode header for
+                       historical reasons. Because clients must
+                       explicitly enable pragma locking_mode=exclusive
+                       before using WAL, that behavior is retained. */)
+            .assert(3 === db2.selectValue('select count(*) from t'));
+          db2.close();
+          T.assert(true === u1.unlink(dbName2))
+            .assert(false === u1.unlink(dbName2))
+            .assert(1 === u1.getFileCount())
+            .assert(1 === u1.getFileNames().length);
+          // Try again with a function as an input source:
+          let cursor = 0;
+          const blockSize = 1024, end = dbytes.byteLength;
+          const reader = async function(){
+            if(cursor >= dbytes.byteLength){
+              return undefined;
+            }
+            const rv = dbytes.subarray(cursor, cursor+blockSize>end ? end : cursor+blockSize);
+            cursor += blockSize;
+            return rv;
+          };
+          nWrote = await u1.importDb(dbName2, reader);
+          T.assert( 2 == u1.getFileCount() );
+          db2 = new u1.OpfsSAHPoolDb(dbName2);
+          T.assert(db2 instanceof sqlite3.oo1.DB)
+            .assert(3 === db2.selectValue('select count(*) from t'));
+          db2.close();
+          T.assert(true === u1.unlink(dbName2))
+            .assert(dbytes.byteLength == nWrote);
+        }
+
+        T.assert(true === u1.unlink(dbName))
+          .assert(false === u1.unlink(dbName))
+          .assert(0 === u1.getFileCount())
+          .assert(0 === u1.getFileNames().length);
+
+        // Demonstrate that two SAH pools can coexist so long as
+        // they have different names.
+        const conf2 = JSON.parse(JSON.stringify(sahPoolConfig));
+        conf2.name += '-test2';
+        const POther = await inst(conf2);
+        //log("Installed second SAH instance as",conf2.name);
+        T.assert(0 === POther.getFileCount())
+          .assert(true === await POther.removeVfs());
+
+        if(0){
+           /* Enable this block to inspect vfs's contents via the dev
+              console or OPFS Explorer browser extension.  The
+              following bits will remove them. */
+          return;
+        }
+        T.assert(true === await u2.removeVfs())
+          .assert(false === await u1.removeVfs())
+          .assert(!sqlite3.capi.sqlite3_vfs_find(sahPoolConfig.name));
+
+        let cErr, u3;
+        conf2.$testThrowPhase2 = new Error("Testing throwing during init.");
+        conf2.name = sahPoolConfig.name+'-err';
+        const P3 = await inst(conf2).then(u=>u3 = u).catch((e)=>cErr=e);
+        T.assert(P3 === conf2.$testThrowPhase2)
+          .assert(cErr === P3)
+          .assert(undefined === u3)
+          .assert(!sqlite3.capi.sqlite3_vfs_find(conf2.name));
+        delete conf2.$testThrowPhase2;
+        T.assert(cErr === await inst(conf2).catch(e=>e),
+                "Init result is cached even if it failed");
+
+        /* Ensure that the forceReinitIfPreviouslyFailed fallback bypasses
+           the VFS init cache... */
+        cErr = u3 = undefined;
+        conf2.forceReinitIfPreviouslyFailed = true;
+        conf2.verbosity = 3;
+        const P3b = await inst(conf2).then(u=>u3 = u).catch((e)=>cErr=e);
+        T.assert(undefined === cErr)
+          .assert(P3b === u3)
+          .assert(P3b === await inst(conf2))
+          .assert(true === await u3.removeVfs())
+          .assert(false === await P3b.removeVfs());
+      }
+    }/*OPFS SAH Pool sanity checks*/)
+
+  ////////////////////////////////////////////////////////////////////////
+  T.g('Misc. APIs')
+    .t('bind_parameter_...', function(sqlite3){
+      const db = new sqlite3.oo1.DB();
+      db.exec("create table t(a)");
+      const stmt = db.prepare("insert into t(a) values($a)");
+      T.assert( 1===capi.sqlite3_bind_parameter_count(stmt) )
+        .assert( 1===capi.sqlite3_bind_parameter_index(stmt, "$a") )
+        .assert( 0===capi.sqlite3_bind_parameter_index(stmt, ":a") )
+        .assert( 1===stmt.getParamIndex("$a") )
+        .assert( 0===stmt.getParamIndex(":a") )
+        .assert( "$a"===capi.sqlite3_bind_parameter_name(stmt, 1) )
+        .assert( null===capi.sqlite3_bind_parameter_name(stmt, 0) )
+        .assert( "$a"===stmt.getParamName(1) )
+        .assert( null===stmt.getParamName(0) );
+      stmt.finalize();
+      db.close();
+    })
+
+  ////////////////////////////////////////////////////////////////////
+    .t("Misc. stmt_...", function(sqlite3){
+      const db = new sqlite3.oo1.DB();
+      db.exec("create table t(a doggiebiscuits); insert into t(a) values(123)");
+      const stmt = db.prepare("select a, a+1 from t");
+      T.assert( stmt.isReadOnly() )
+        .assert( 0===capi.sqlite3_stmt_isexplain(stmt) )
+        .assert( 0===capi.sqlite3_stmt_explain(stmt, 1) )
+        .assert( 0!==capi.sqlite3_stmt_isexplain(stmt) )
+        .assert( 0===capi.sqlite3_stmt_explain(stmt, 2) )
+        .assert( 0!==capi.sqlite3_stmt_isexplain(stmt) )
+        .assert( 0===capi.sqlite3_stmt_explain(stmt, 0) )
+        .assert( 0===capi.sqlite3_stmt_isexplain(stmt) );
+      let n = 0;
+      while( capi.SQLITE_ROW === capi.sqlite3_step(stmt) ){
+        ++n;
+        T.assert( 0!==capi.sqlite3_stmt_explain(stmt, 1),
+                  "Because stmt is busy" )
+          .assert( capi.sqlite3_stmt_busy(stmt) )
+          .assert( stmt.isBusy() )
+          .assert( 0!==capi.sqlite3_stmt_readonly(stmt) )
+          .assert( true===stmt.isReadOnly() );
+        const sv = capi.sqlite3_column_value(stmt, 0);
+        T.assert( 123===capi.sqlite3_value_int(sv) )
+          .assert( "doggiebiscuits"===capi.sqlite3_column_decltype(stmt,0) )
+          .assert( null===capi.sqlite3_column_decltype(stmt,1) );
+      }
+      T.assert( 1===n )
+        .assert( 0===capi.sqlite3_stmt_busy(stmt) )
+        .assert( !stmt.isBusy() );
+      stmt.finalize();
+      db.close();
+    })
+
+  ////////////////////////////////////////////////////////////////////
+    .t("interrupt", function(sqlite3){
+      const db = new sqlite3.oo1.DB();
+      T.assert( 0===capi.sqlite3_is_interrupted(db) );
+      capi.sqlite3_interrupt(db);
+      T.assert( 0!==capi.sqlite3_is_interrupted(db) );
+      db.close();
+    })
+
+  ////////////////////////////////////////////////////////////////////////
+  T.g('Bug Reports')
+    .t({
+      name: 'Delete via bound parameter in subquery',
+      predicate: ()=>wasm.compileOptionUsed('ENABLE_FTS5') || "Missing FTS5",
+      test: function(sqlite3){
+        // Testing https://sqlite.org/forum/forumpost/40ce55bdf5
+        // with the exception that that post uses "external content"
+        // for the FTS index.
+        const db = new sqlite3.oo1.DB();//(':memory:','wt');
+        db.exec([
+          "create virtual table f using fts5 (path);",
+          "insert into f(path) values('abc'),('def'),('ghi');"
+        ]);
+        const fetchEm = ()=> db.exec({
+          sql: "SELECT * FROM f order by path",
+          rowMode: 'array'
+        });
+        const dump = function(lbl){
+          let rc = fetchEm();
+          log((lbl ? (lbl+' results') : ''),rc);
+        };
+        //dump('Full fts table');
+        let rc = fetchEm();
+        T.assert(3===rc.length);
+        db.exec(`
+          delete from f where rowid in (
+          select rowid from f where path = :path
+           )`,
+          {bind: {":path": "def"}}
+        );
+        //dump('After deleting one entry via subquery');
+        rc = fetchEm();
+        T.assert(2===rc.length)
+          .assert('abcghi'===rc.join(''));
+        //log('rc =',rc);
+        db.close();
+      }
+    })
+    .t({
+      name: 'r/o connection recovery from write op error',
+      predicate: ()=>hasOpfs() || "Requires OPFS to reproduce",
+      //predicate: ()=>false,
+      test: async function(sqlite3){
+        /* https://sqlite.org/forum/forumpost/cf37d5ff1182c31081
+
+           The "opfs" VFS (but not SAHPool) was formerly misbehaving
+           after a write attempt was made on a db opened with
+           mode=ro. This test ensures that that behavior is fixed and
+           compares that behavior with other VFSes. */
+        const tryOne = function(vfsName,descr){
+          const uri = 'file:///foo.db';
+          let db = new sqlite3.oo1.DB(uri + (vfsName ? '?vfs='+vfsName : ''));
+          db.exec([
+            "drop table if exists t;",
+            "create table t(a);",
+            "insert into t(a) values('abc'),('def'),('ghi');"
+          ]);
+          db.close();
+          db = new sqlite3.oo1.DB(uri+'?mode=ro'+
+                                  (vfsName ? '&vfs='+vfsName : ''));
+          let err;
+          try {
+            db.exec('insert into t(a) values(1)');
+          }catch(e){
+            err = e;
+          }
+          T.assert(err && (err.message.indexOf('SQLITE_READONLY')===0));
+          try{
+            db.exec('select a from t');
+          }finally{
+            db.close();
+          }
+        };
+        const poolConfig = JSON.parse(JSON.stringify(sahPoolConfig));
+        poolConfig.name = 'opfs-sahpool-cf37d5ff11';
+        let poolUtil;
+        await sqlite3.installOpfsSAHPoolVfs(poolConfig).then(p=>poolUtil=p);
+        T.assert(!!sqlite3.capi.sqlite3_vfs_find(poolConfig.name), "Expecting to find just-registered VFS");
+        try{
+          tryOne(false, "Emscripten filesystem");
+          tryOne(poolConfig.name);
+          tryOne('opfs');
+        }finally{
+          await poolUtil.removeVfs();
+        }
+      }
+    })
+  ;/*end of Bug Reports group*/;
+
+  ////////////////////////////////////////////////////////////////////////
+  log("Loading and initializing sqlite3 WASM module...");
+  if(0){
+    globalThis.sqlite3ApiConfig = {
+      debug: ()=>{},
+      log: ()=>{},
+      warn: ()=>{},
+      error: ()=>{}
+    }
+  }
+//#ifnot target=es6-module
+  if(!globalThis.sqlite3InitModule && !isUIThread()){
+    /* Vanilla worker, as opposed to an ES6 module worker */
+    /*
+      If sqlite3.js is in a directory other than this script, in order
+      to get sqlite3.js to resolve sqlite3.wasm properly, we have to
+      explicitly tell it where sqlite3.js is being loaded from. We do
+      that by passing the `sqlite3.dir=theDirName` URL argument to
+      _this_ script. That URL argument will be seen by the JS/WASM
+      loader and it will adjust the sqlite3.wasm path accordingly. If
+      sqlite3.js/.wasm are in the same directory as this script then
+      that's not needed.
+
+      URL arguments passed as part of the filename via importScripts()
+      are simply lost, and such scripts see the globalThis.location of
+      _this_ script.
+    */
+    let sqlite3Js = 'sqlite3.js';
+    const urlParams = new URL(globalThis.location.href).searchParams;
+    if(urlParams.has('sqlite3.dir')){
+      sqlite3Js = urlParams.get('sqlite3.dir') + '/' + sqlite3Js;
+    }
+    importScripts(sqlite3Js);
+  }
+//#endif
+  globalThis.sqlite3InitModule.__isUnderTest =
+    true /* disables certain API-internal cleanup so that we can
+            test internal APIs from here */;
+  globalThis.sqlite3InitModule({
+    print: log,
+    printErr: error
+  }).then(async function(sqlite3){
+    TestUtil.assert(!!sqlite3.util);
+    log("Done initializing WASM/JS bits. Running tests...");
+    sqlite3.config.warn("Installing sqlite3 bits as global S for local dev/test purposes.");
+    globalThis.S = sqlite3;
+    /*await sqlite3.installOpfsSAHPoolVfs(sahPoolConfig)
+      .then((u)=>log("Loaded",u.vfsName,"VFS"))
+      .catch(e=>{
+        log("Cannot install OpfsSAHPool.",e);
+      });*/
+    capi = sqlite3.capi;
+    wasm = sqlite3.wasm;
+    log("sqlite3 version:",capi.sqlite3_libversion(),
+        capi.sqlite3_sourceid());
+    if(wasm.bigIntEnabled){
+      log("BigInt/int64 support is enabled.");
+    }else{
+      logClass('warning',"BigInt/int64 support is disabled.");
+    }
+    if(haveWasmCTests()){
+      log("sqlite3__wasm_test_...() APIs are available.");
+    }else{
+      logClass('warning',"sqlite3__wasm_test_...() APIs unavailable.");
+    }
+    log("registered vfs list =",capi.sqlite3_js_vfs_list().join(', '));
+    TestUtil.runTests(sqlite3);
+  });
+})(self);
diff --git a/ext/wasm/tests/opfs/concurrency/index.html b/ext/wasm/tests/opfs/concurrency/index.html
new file mode 100644
index 0000000000000000000000000000000000000000..54ed04a4f603827aee7380e811e975d1866e14aa
--- /dev/null
+++ b/ext/wasm/tests/opfs/concurrency/index.html
@@ -0,0 +1,52 @@
+<!doctype html>
+<html lang="en-us">
+  <head>
+    <meta charset="utf-8">
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+    <link rel="shortcut icon" href="data:image/x-icon;," type="image/x-icon">
+    <link rel="stylesheet" href="../../../common/testing.css"/>
+    <title>sqlite3 OPFS Worker concurrency tester</title>
+    <style>
+      body { display: revert; }
+      body > * {}
+      #test-output {
+          font-family: monospace;
+      }
+    </style>
+  </head>
+  <body>
+    <h1></h1>
+    <p>
+      OPFS concurrency tester using multiple independent Workers.
+      Disclaimer: concurrency in OPFS is currently a pain point!
+    </p>
+    <p>
+      URL flags: pass a number of workers using
+      the <code>workers=N</code> URL flag. Set the time between each
+      workload with <code>interval=N</code> (milliseconds). Set the
+      number of worker iterations with <code>iterations=N</code>.
+      Enable OPFS VFS verbosity with <code>verbose=1-3</code> (output
+      goes to the dev console). Disable/enable "unlock ASAP" mode
+      (higher concurrency, lower speed) with <code>unlock-asap=0-1</code>.
+    </p>
+    <p>Achtung: if it does not start to do anything within a couple of
+      seconds, check the dev console: Chrome sometimes fails to load
+      the wasm module due to "cannot allocate WasmMemory." Closing and
+      re-opening the tab usually resolves it, but sometimes restarting
+      the browser is required.
+    </p>
+    <p>
+      Links for various testing options: <ul id='testlinks'></ul>
+    </p>
+    <div class='input-wrapper'>
+      <input type='checkbox' id='cb-log-reverse'>
+      <label for='cb-log-reverse'>Reverse log order?</label>
+    </div>
+    <div id='test-output'></div>
+    <script>(function(){
+      document.querySelector('h1').innerHTML =
+        document.querySelector('title').innerHTML;
+    })();</script>
+    <script src="test.js?sqlite3.dir=../../../jswasm"></script>
+  </body>
+</html>
diff --git a/ext/wasm/tests/opfs/concurrency/test.js b/ext/wasm/tests/opfs/concurrency/test.js
new file mode 100644
index 0000000000000000000000000000000000000000..1848901afedba3f208bc00dd6522952011e7af07
--- /dev/null
+++ b/ext/wasm/tests/opfs/concurrency/test.js
@@ -0,0 +1,161 @@
+(async function(self){
+
+  const logCss = (function(){
+    const mapToString = (v)=>{
+      switch(typeof v){
+          case 'number': case 'string': case 'boolean':
+          case 'undefined': case 'bigint':
+            return ''+v;
+          default: break;
+      }
+      if(null===v) return 'null';
+      if(v instanceof Error){
+        v = {
+          message: v.message,
+          stack: v.stack,
+          errorClass: v.name
+        };
+      }
+      return JSON.stringify(v,undefined,2);
+    };
+    const normalizeArgs = (args)=>args.map(mapToString);
+    const logTarget = document.querySelector('#test-output');
+    const logCss = function(cssClass,...args){
+      const ln = document.createElement('div');
+      if(cssClass){
+        for(const c of (Array.isArray(cssClass) ? cssClass : [cssClass])){
+          ln.classList.add(c);
+        }
+      }
+      ln.append(document.createTextNode(normalizeArgs(args).join(' ')));
+      logTarget.append(ln);
+    };
+    const cbReverse = document.querySelector('#cb-log-reverse');
+    const cbReverseKey = 'tester1:cb-log-reverse';
+    const cbReverseIt = ()=>{
+      logTarget.classList[cbReverse.checked ? 'add' : 'remove']('reverse');
+      localStorage.setItem(cbReverseKey, cbReverse.checked ? 1 : 0);
+    };
+    cbReverse.addEventListener('change', cbReverseIt, true);
+    if(localStorage.getItem(cbReverseKey)){
+      cbReverse.checked = !!(+localStorage.getItem(cbReverseKey));
+    }
+    cbReverseIt();
+    return logCss;
+  })();
+  const stdout = (...args)=>logCss('',...args);
+  const stderr = (...args)=>logCss('error',...args);
+
+  const wait = async (ms)=>{
+    return new Promise((resolve)=>setTimeout(resolve,ms));
+  };
+
+  const urlArgsJs = new URL(document.currentScript.src).searchParams;
+  const urlArgsHtml = new URL(self.location.href).searchParams;
+  const options = Object.create(null);
+  options.sqlite3Dir = urlArgsJs.get('sqlite3.dir');
+  options.workerCount = (
+    urlArgsHtml.has('workers') ? +urlArgsHtml.get('workers') : 3
+  ) || 4;
+  options.opfsVerbose = (
+    urlArgsHtml.has('verbose') ? +urlArgsHtml.get('verbose') : 1
+  ) || 1;
+  options.interval = (
+    urlArgsHtml.has('interval') ? +urlArgsHtml.get('interval') : 1000
+  ) || 1000;
+  options.iterations = (
+    urlArgsHtml.has('iterations') ? +urlArgsHtml.get('iterations') : 10
+  ) || 10;
+  options.unlockAsap = (
+    urlArgsHtml.has('unlock-asap') ? +urlArgsHtml.get('unlock-asap') : 0
+  ) || 0;
+  options.noUnlink = !!urlArgsHtml.has('no-unlink');
+  const workers = [];
+  workers.post = (type,...args)=>{
+    for(const w of workers) w.postMessage({type, payload:args});
+  };
+  workers.counts = {loaded: 0, passed: 0, failed: 0};
+  const checkFinished = function(){
+    if(workers.counts.passed + workers.counts.failed !== workers.length){
+      return;
+    }
+    if(workers.counts.failed>0){
+      logCss('tests-fail',"Finished with",workers.counts.failed,"failure(s).");
+    }else{
+      logCss('tests-pass',"All",workers.length,"workers finished.");
+    }
+  };
+  workers.onmessage = function(msg){
+    msg = msg.data;
+    const prefix = 'Worker #'+msg.worker+':';
+    switch(msg.type){
+        case 'loaded':
+          stdout(prefix,"loaded");
+          if(++workers.counts.loaded === workers.length){
+            stdout("All",workers.length,"workers loaded. Telling them to run...");
+            workers.post('run');
+          }
+          break;
+        case 'stdout': stdout(prefix,...msg.payload); break;
+        case 'stderr': stderr(prefix,...msg.payload); break;
+        case 'error': stderr(prefix,"ERROR:",...msg.payload); break;
+        case 'finished':
+          ++workers.counts.passed;
+          logCss('tests-pass',prefix,...msg.payload);
+          checkFinished();
+          break;
+        case 'failed':
+          ++workers.counts.failed;
+          logCss('tests-fail',prefix,"FAILED:",...msg.payload);
+          checkFinished();
+          break;
+        default: logCss('error',"Unhandled message type:",msg); break;
+    }
+  };
+
+  /* Set up links to launch this tool with various combinations of
+     flags... */
+  const eTestLinks = document.querySelector('#testlinks');
+  const optArgs = function(obj){
+    const li = [];
+    for(const k of ['interval','iterations','workers','verbose','unlock-asap']){
+      if( obj.hasOwnProperty(k) ) li.push(k+'='+obj[k]);
+    }
+    return li.join('&');
+  };
+  for(const opt of [
+    {interval: 1000, workers: 5, iterations: 30},
+    {interval: 500, workers: 5, iterations: 30},
+    {interval: 250, workers: 3, iterations: 30},
+    {interval: 600, workers: 5, iterations: 100}
+  ]){
+    const li = document.createElement('li');
+    eTestLinks.appendChild(li);
+    const a = document.createElement('a');
+    li.appendChild(a);
+    const args = optArgs(opt);
+    a.setAttribute('href', '?'+args);
+    a.innerText = args;
+  }
+
+  stdout("Launching",options.workerCount,"workers. Options:",options);
+  workers.uri = (
+    'worker.js?'
+      + 'sqlite3.dir='+options.sqlite3Dir
+      + '&interval='+options.interval
+      + '&iterations='+options.iterations
+      + '&opfs-verbose='+options.opfsVerbose
+      + '&opfs-unlock-asap='+options.unlockAsap
+  );
+  for(let i = 0; i < options.workerCount; ++i){
+    stdout("Launching worker...");
+    workers.push(new Worker(
+      workers.uri+'&workerId='+(i+1)+(
+        (i || options.noUnlink) ? '' : '&unlink-db'
+      )
+    ));
+  }
+  // Have to delay onmessage assignment until after the loop
+  // to avoid that early workers get an undue head start.
+  workers.forEach((w)=>w.onmessage = workers.onmessage);
+})(self);
diff --git a/ext/wasm/tests/opfs/concurrency/worker.js b/ext/wasm/tests/opfs/concurrency/worker.js
new file mode 100644
index 0000000000000000000000000000000000000000..5d28bedee0ed4eaf96f4a7702bad75c8bffe6b19
--- /dev/null
+++ b/ext/wasm/tests/opfs/concurrency/worker.js
@@ -0,0 +1,113 @@
+importScripts(
+  (new URL(self.location.href).searchParams).get('sqlite3.dir') + '/sqlite3.js'
+);
+self.sqlite3InitModule().then(async function(sqlite3){
+  const urlArgs = new URL(self.location.href).searchParams;
+  const options = {
+    workerName: urlArgs.get('workerId') || Math.round(Math.random()*10000),
+    unlockAsap: urlArgs.get('opfs-unlock-asap') || 0 /*EXPERIMENTAL*/
+  };
+  const wPost = (type,...payload)=>{
+    postMessage({type, worker: options.workerName, payload});
+  };
+  const stdout = (...args)=>wPost('stdout',...args);
+  const stderr = (...args)=>wPost('stderr',...args);
+  if(!sqlite3.opfs){
+    stderr("OPFS support not detected. Aborting.");
+    return;
+  }
+
+  const wait = async (ms)=>{
+    return new Promise((resolve)=>setTimeout(resolve,ms));
+  };
+
+  const dbName = 'concurrency-tester.db';
+  if(urlArgs.has('unlink-db')){
+    await sqlite3.opfs.unlink(dbName);
+    stdout("Unlinked",dbName);
+  }
+  wPost('loaded');
+  let db;
+  const interval = Object.assign(Object.create(null),{
+    delay: urlArgs.has('interval') ? (+urlArgs.get('interval') || 750) : 750,
+    handle: undefined,
+    count: 0
+  });
+  const finish = ()=>{
+    if(db){
+      if(!db.pointer) return;
+      db.close();
+    }
+    if(interval.error){
+      wPost('failed',"Ending work after interval #"+interval.count,
+            "due to error:",interval.error);
+    }else{
+      wPost('finished',"Ending work after",interval.count,"intervals.");
+    }
+  };
+  const run = async function(){
+    db = new sqlite3.oo1.OpfsDb({
+      filename: 'file:'+dbName+'?opfs-unlock-asap='+options.unlockAsap,
+      flags: 'c'
+    });
+    sqlite3.capi.sqlite3_busy_timeout(db.pointer, 5000);
+    db.transaction((db)=>{
+      db.exec([
+        "create table if not exists t1(w TEXT UNIQUE ON CONFLICT REPLACE,v);",
+        "create table if not exists t2(w TEXT UNIQUE ON CONFLICT REPLACE,v);"
+      ]);
+    });
+
+    const maxIterations =
+          urlArgs.has('iterations') ? (+urlArgs.get('iterations') || 10) : 10;
+    stdout("Starting interval-based db updates with delay of",interval.delay,"ms.");
+    const doWork = async ()=>{
+      const tm = new Date().getTime();
+      ++interval.count;
+      const prefix = "v(#"+interval.count+")";
+      stdout("Setting",prefix,"=",tm);
+      try{
+        db.exec({
+          sql:"INSERT OR REPLACE INTO t1(w,v) VALUES(?,?)",
+          bind: [options.workerName, new Date().getTime()]
+        });
+        //stdout("Set",prefix);
+      }catch(e){
+        interval.error = e;
+      }
+    };
+    if(1){/*use setInterval()*/
+      setTimeout(async function timer(){
+        await doWork();
+        if(interval.error || maxIterations === interval.count){
+          finish();
+        }else{
+          setTimeout(timer, interval.delay);
+        }
+      }, interval.delay);
+    }else{
+      /*This approach provides no concurrency whatsoever: each worker
+        is run to completion before any others can work.*/
+      let i;
+      for(i = 0; i < maxIterations; ++i){
+        await doWork();
+        if(interval.error) break;
+        await wait(interval.ms);
+      }
+      finish();
+    }
+  }/*run()*/;
+
+  self.onmessage = function({data}){
+    switch(data.type){
+        case 'run': run().catch((e)=>{
+          if(!interval.error) interval.error = e;
+          finish();
+        });
+          break;
+        default:
+          stderr("Unhandled message type '"+data.type+"'.");
+          break;
+    }
+  };
+});
diff --git a/ext/wasm/wasmfs.make b/ext/wasm/wasmfs.make
new file mode 100644
index 0000000000000000000000000000000000000000..9de5574f26d895b8f501ce3eefb0df92efb13148
--- /dev/null
+++ b/ext/wasm/wasmfs.make
@@ -0,0 +1,111 @@
+#!/usr/bin/make
+#^^^^ help emacs select makefile mode
+#
+# This is a sub-make for building a standalone wasmfs-based
+# sqlite3.wasm.  It is intended to be "include"d from the main
+# GNUMakefile.
+########################################################################
+MAKEFILE.wasmfs := $(lastword $(MAKEFILE_LIST))
+# ensure that the following message starts on line 10 or higher for proper
+# $(warning) alignment!
+ifneq (1,$(MAKING_CLEAN))
+  $(warning !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!)
+  $(warning !! The WASMFS build is not well-supported. WASMFS is a proverbial)
+  $(warning !! moving target, sometimes changing in incompatible ways between)
+  $(warning !! Emscripten versions. This build is provided for adventurous folks)
+  $(warning !! and is not a supported deliverable of the SQLite project.)
+  $(warning !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!)
+endif
+
+sqlite3-wasmfs.js     := $(dir.wasmfs)/sqlite3-wasmfs.js
+sqlite3-wasmfs.wasm   := $(dir.wasmfs)/sqlite3-wasmfs.wasm
+
+########################################################################
+# emcc flags for .c/.o.
+cflags.sqlite3-wasmfs :=
+cflags.sqlite3-wasmfs += -std=c99 -fPIC
+cflags.sqlite3-wasmfs += -pthread
+cflags.sqlite3-wasmfs += -DSQLITE_ENABLE_WASMFS
+
+########################################################################
+# emcc flags specific to building the final .js/.wasm file...
+emcc.flags.sqlite3-wasmfs :=
+emcc.flags.sqlite3-wasmfs += \
+  -sEXPORTED_RUNTIME_METHODS=wasmMemory
+                          # wasmMemory ==> for -sIMPORTED_MEMORY
+# Some version of emcc between 3.1.60-ish(?) and 3.1.62 deprecated the
+# use of (allocateUTF8OnStack,stringToUTF8OnStack). Earlier emcc
+# versions will fail to build without those in the
+# EXPORTED_RUNTIME_METHODS list.
+emcc.flags.sqlite3-wasmfs += -sUSE_CLOSURE_COMPILER=0
+emcc.flags.sqlite3-wasmfs += -Wno-limited-postlink-optimizations
+# ^^^^^ emcc likes to warn when we have "limited optimizations" via the -g3 flag.
+emcc.flags.sqlite3-wasmfs += -sMEMORY64=0
+emcc.flags.sqlite3-wasmfs += -sINITIAL_MEMORY=$(emcc.INITIAL_MEMORY.128)
+# ^^^^ 64MB is not enough for WASMFS/OPFS test runs using batch-runner.js
+sqlite3-wasmfs.fsflags := -pthread -sWASMFS \
+    -sPTHREAD_POOL_SIZE=1 \
+    -sERROR_ON_UNDEFINED_SYMBOLS=0 -sLLD_REPORT_UNDEFINED
+# ^^^^^ why undefined symbols are necessary for the wasmfs build is anyone's guess.
+emcc.flags.sqlite3-wasmfs += $(sqlite3-wasmfs.fsflags)
+emcc.flags.sqlite3-wasmfs += -sALLOW_MEMORY_GROWTH=0
+#^^^ using ALLOW_MEMORY_GROWTH produces a warning from emcc:
+#   USE_PTHREADS + ALLOW_MEMORY_GROWTH may run non-wasm code slowly,
+#   see https://github.com/WebAssembly/design/issues/1271 [-Wpthreads-mem-growth]
+# And, indeed, it runs slowly if memory is permitted to grow.
+#emcc.flags.sqlite3-wasmfs.vanilla :=
+#emcc.flags.sqlite3-wasmfs.esm := -sEXPORT_ES6 -sUSE_ES6_IMPORT_META
+all: $(sqlite3-wasmfs.mjs)
+$(sqlite3-wasmfs.js) $(sqlite3-wasmfs.mjs): $(MAKEFILE.wasmfs)
+########################################################################
+# Build quirk: we cannot build BOTH .js and .mjs with our current
+# build infrastructure because the supplemental *.worker.js files get
+# generated with the name of the main module file
+# ($(sqlite3-wasmfs.{js,mjs})) hard-coded in them.  Thus the last one
+# to get built gets the *.worker.js files mapped to it. In order to
+# build both modes they would need to have distinct base names or
+# output directories. "The problem" with giving them distinct base
+# names is that it means that the corresponding .wasm file is also
+# built/saved multiple times. It is likely that anyone wanting to use
+# WASMFS will want an ES6 module, so that's what we build here.
+wasmfs.build.ext := mjs
+$(sqlite3-wasmfs.js) $(sqlite3-wasmfs.mjs): $(SOAP.js.bld)
+ifeq (js,$(wasmfs.build.ext))
+  $(sqlite3-wasmfs.wasm): $(sqlite3-wasmfs.js)
+  wasmfs: $(sqlite3-wasmfs.js)
+else
+  $(sqlite3-wasmfs.wasm): $(sqlite3-wasmfs.mjs)
+  wasmfs: $(sqlite3-wasmfs.mjs)
+endif
+
+########################################################################
+# speedtest1 for wasmfs.
+speedtest1-wasmfs.mjs := $(dir.wasmfs)/speedtest1-wasmfs.mjs
+speedtest1-wasmfs.wasm := $(subst .mjs,.wasm,$(speedtest1-wasmfs.mjs))
+emcc.flags.speedtest1-wasmfs := $(sqlite3-wasmfs.fsflags)
+emcc.flags.speedtest1-wasmfs += $(SQLITE_OPT)
+emcc.flags.speedtest1-wasmfs += -sALLOW_MEMORY_GROWTH=0
+emcc.flags.speedtest1-wasmfs += -sINITIAL_MEMORY=$(emcc.INITIAL_MEMORY.128)
+#$(eval $(call call-make-pre-js,speedtest1-wasmfs,ems))
+$(speedtest1-wasmfs.mjs): $(speedtest1.cfiles) $(sqlite3-wasmfs.js) \
+  $(MAKEFILE) $(MAKEFILE.wasmfs) \
+  $(pre-post-sqlite3-wasmfs-esm.deps) \
+  $(EXPORTED_FUNCTIONS.speedtest1)
+	@echo "Building $@ ..."
+	$(emcc.bin) \
+        $(pre-post-sqlite3-wasmfs-esm.flags) \
+        $(cflags.common) \
+        $(cflags.sqlite3-wasmfs) \
+        $(emcc.speedtest1.common) \
+        $(emcc.flags.speedtest1-vanilla) \
+        $(emcc.flags.sqlite3-wasmfs) \
+        $(emcc.flags.speedtest1-wasmfs) \
+        -o $@ $(speedtest1.cfiles) -lm
+	@$(call SQLITE3.xJS.ESM-EXPORT-DEFAULT,1,1)
+	$(maybe-wasm-strip) $(speedtest1-wasmfs.wasm)
+	chmod -x $(speedtest1-wasmfs.wasm)
+	ls -la $@ $(speedtest1-wasmfs.wasm)
+
+wasmfs: $(speedtest1-wasmfs.mjs)
+# end speedtest1.js
+########################################################################
diff --git a/test/8_3_names.test b/test/8_3_names.test
new file mode 100644
index 0000000000000000000000000000000000000000..1d63f5dcc96ceeccdcd7d1fa4fbdd6f75eee9268
--- /dev/null
+++ b/test/8_3_names.test
@@ -0,0 +1,197 @@
+# 2011 May 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test cases for the SQLITE_ENABLE_8_3_NAMES feature that forces all
+# filename extensions to be limited to 3 characters.  Some embedded
+# systems need this to work around microsoft FAT patents, but this
+# feature should be disabled on most deployments.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable !8_3_names {
+  finish_test
+  return
+}
+
+db close
+sqlite3_shutdown
+sqlite3_config_uri 1
+
+do_test 8_3_names-1.0 {
+  forcedelete test.db test.nal test.db-journal
+  sqlite3 db test.db
+  db eval {
+    PRAGMA cache_size=10;
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(randomblob(20000));
+    BEGIN;
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES(randomblob(15000));
+  }
+  file exists test.db-journal
+} 1
+do_test 8_3_names-1.1 {
+  file exists test.nal
+} 0
+do_test 8_3_names-1.2 {
+  db eval {
+    ROLLBACK;
+    SELECT length(x) FROM t1
+  }
+} 20000
+
+db close
+do_test 8_3_names-2.0 {
+  forcedelete test.db test.nal test.db-journal
+  sqlite3 db file:./test.db?8_3_names=1
+  db eval {
+    PRAGMA cache_size=10;
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(randomblob(20000));
+    BEGIN;
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES(randomblob(15000));
+  }
+  file exists test.db-journal
+} 0
+do_test 8_3_names-2.1 {
+  file exists test.nal
+} 1
+forcedelete test2.db test2.nal test2.db-journal
+copy_file test.db test2.db
+copy_file test.nal test2.nal
+do_test 8_3_names-2.2 {
+  db eval {
+    COMMIT;
+    SELECT length(x) FROM t1
+  }
+} 15000
+do_test 8_3_names-2.3 {
+  sqlite3 db2 file:./test2.db?8_3_names=1
+  db2 eval {
+    PRAGMA integrity_check;
+    SELECT length(x) FROM t1;
+  }
+} {ok 20000}
+
+db close
+do_test 8_3_names-3.0 {
+  forcedelete test.db test.nal test.db-journal
+  sqlite3 db file:./test.db?8_3_names=0
+  db eval {
+    PRAGMA cache_size=10;
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(randomblob(20000));
+    BEGIN;
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES(randomblob(15000));
+  }
+  file exists test.db-journal
+} 1
+do_test 8_3_names-3.1 {
+  file exists test.nal
+} 0
+forcedelete test2.db test2.nal test2.db-journal
+copy_file test.db test2.db
+copy_file test.db-journal test2.db-journal
+do_test 8_3_names-3.2 {
+  db eval {
+    COMMIT;
+    SELECT length(x) FROM t1
+  }
+} 15000
+do_test 8_3_names-3.3 {
+  sqlite3 db2 file:./test2.db?8_3_names=0
+  db2 eval {
+    PRAGMA integrity_check;
+    SELECT length(x) FROM t1;
+  }
+} {ok 20000}
+
+##########################################################################
+# Master journals.
+#
+db close
+forcedelete test.db test2.db
+do_test 8_3_names-4.0 {
+  sqlite3 db file:./test.db?8_3_names=1
+  db eval {
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(1);
+    ATTACH 'file:./test2.db?8_3_names=1' AS db2;
+    CREATE TABLE db2.t2(y);
+    INSERT INTO t2 VALUES(2);
+    BEGIN;
+      INSERT INTO t1 VALUES(3);
+      INSERT INTO t2 VALUES(4);
+    COMMIT;
+    SELECT * FROM t1, t2 ORDER BY x, y
+  }
+} {1 2 1 4 3 2 3 4}
+    
+
+##########################################################################
+# WAL mode.
+#
+ifcapable !wal {
+  finish_test
+  return
+}
+db close
+forcedelete test.db
+do_test 8_3_names-5.0 {
+  sqlite3 db file:./test.db?8_3_names=1
+  load_static_extension db wholenumber
+  db eval {
+    PRAGMA journal_mode=WAL;
+    CREATE TABLE t1(x);
+    CREATE VIRTUAL TABLE nums USING wholenumber;
+    INSERT INTO t1 SELECT value FROM nums WHERE value BETWEEN 1 AND 1000;
+    BEGIN;
+    UPDATE t1 SET x=x*2;
+  }
+  sqlite3 db2 file:./test.db?8_3_names=1
+  load_static_extension db2 wholenumber
+  db2 eval {
+    BEGIN;
+    SELECT sum(x) FROM t1;
+  }
+} {500500}
+
+do_test 8_3_names-5.1 {
+  file exists test.db-wal
+} 0
+do_test 8_3_names-5.2 {
+  file exists test.wal
+} 1
+do_test 8_3_names-5.3 {
+  file exists test.db-shm
+} 0
+do_test 8_3_names-5.4 {
+  file exists test.shm
+} 1
+
+
+do_test 8_3_names-5.5 {
+  db eval {
+    COMMIT;
+    SELECT sum(x) FROM t1;
+  }
+} {1001000}
+do_test 8_3_names-5.6 {
+  db2 eval {
+    SELECT sum(x) FROM t1;
+  }
+} {500500}
+
+
+finish_test
diff --git a/test/affinity2.test b/test/affinity2.test
new file mode 100644
index 0000000000000000000000000000000000000000..6ad257ac36df6dbf2dd2842bd2196ef65769e5c2
--- /dev/null
+++ b/test/affinity2.test
@@ -0,0 +1,136 @@
+# 2015-06-02
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is type affinity in comparison operations.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix affinity2
+
+do_execsql_test affinity2-100 {
+  CREATE TABLE t1(
+    xi INTEGER,
+    xr REAL,
+    xb BLOB,
+    xn NUMERIC,
+    xt TEXT
+  );
+  INSERT INTO t1(rowid,xi,xr,xb,xn,xt) VALUES(1,1,1,1,1,1);
+  INSERT INTO t1(rowid,xi,xr,xb,xn,xt) VALUES(2,'2','2','2','2','2');
+  INSERT INTO t1(rowid,xi,xr,xb,xn,xt) VALUES(3,'03','03','03','03','03');
+
+} {}
+do_execsql_test affinity2-110 {
+  SELECT xi, typeof(xi) FROM t1 ORDER BY rowid;
+} {1 integer 2 integer 3 integer}
+do_execsql_test affinity2-120 {
+  SELECT xr, typeof(xr) FROM t1 ORDER BY rowid;
+} {1.0 real 2.0 real 3.0 real}
+do_execsql_test affinity2-130 {
+  SELECT xb, typeof(xb) FROM t1 ORDER BY rowid;
+} {1 integer 2 text 03 text}
+do_execsql_test affinity2-140 {
+  SELECT xn, typeof(xn) FROM t1 ORDER BY rowid;
+} {1 integer 2 integer 3 integer}
+do_execsql_test affinity2-150 {
+  SELECT xt, typeof(xt) FROM t1 ORDER BY rowid;
+} {1 text 2 text 03 text}
+
+do_execsql_test affinity2-200 {
+  SELECT rowid, xi==xt, xi==xb, xi==+xt FROM t1 ORDER BY rowid;
+} {1 1 1 1 2 1 1 1 3 1 1 1}
+do_execsql_test affinity2-210 {
+  SELECT rowid, xr==xt, xr==xb, xr==+xt FROM t1 ORDER BY rowid;
+} {1 1 1 1 2 1 1 1 3 1 1 1}
+do_execsql_test affinity2-220 {
+  SELECT rowid, xn==xt, xn==xb, xn==+xt FROM t1 ORDER BY rowid;
+} {1 1 1 1 2 1 1 1 3 1 1 1}
+
+do_execsql_test affinity2-300 {
+  SELECT rowid, xt==+xi, xt==xi, xt==xb FROM t1 ORDER BY rowid;
+} {1 1 1 0 2 1 1 1 3 0 1 1}
+
+#-------------------------------------------------------------------------
+do_execsql_test 400 {
+  CREATE TABLE ttt(c0, c1);
+  CREATE INDEX ii ON ttt(CAST(c0 AS NUMERIC)); 
+  INSERT INTO ttt VALUES('abc', '-1');
+}
+do_execsql_test 410 {
+  SELECT * FROM ttt WHERE CAST(c0 AS NUMERIC) > c1 GROUP BY rowid; 
+} {abc -1}
+do_execsql_test 420 {
+  SELECT * FROM ttt INDEXED BY ii WHERE CAST(c0 AS NUMERIC) > c1 GROUP BY rowid;
+} {abc -1}
+
+do_execsql_test 430 {
+  CREATE TABLE t3(a, b, c INTEGER);
+  CREATE INDEX t3ac ON t3(a, c-1);
+  INSERT INTO t3 VALUES(1, 1, 1);
+  INSERT INTO t3 VALUES(2, 1, 0);
+  INSERT INTO t3 VALUES(3, 1, 1);
+  INSERT INTO t3 VALUES(4, 1, 0);
+  INSERT INTO t3 VALUES(5, 1, 1);
+}
+do_execsql_test 440 {
+  SELECT * FROM t3 WHERE c='0' ORDER BY a;
+} {2 1 0 4 1 0}
+
+# 2019-08-22 ticket https://sqlite.org/src/info/d99f1ffe836c591ac57f
+# False positive in sqlite3ExprNeedsNoAffinityChange()
+#
+do_execsql_test 500 {
+  DROP TABLE IF EXISTS t0;
+  CREATE TABLE t0(c0 TEXT UNIQUE, c1);
+  INSERT INTO t0(c0) VALUES (-1);
+  SELECT quote(- x'ce'), quote(t0.c0), quote(- x'ce' >= t0.c0) FROM t0;
+} {0 '-1' 1}
+do_execsql_test 501 {
+  SELECT * FROM t0 WHERE - x'ce' >= t0.c0;
+} {-1 {}}
+do_execsql_test 502 {
+  SELECT quote(+-+x'ce'), quote(t0.c0), quote(+-+x'ce' >= t0.c0) FROM t0;
+} {0 '-1' 1}
+do_execsql_test 503 {
+  SELECT * FROM t0 WHERE +-+x'ce' >= t0.c0;
+} {-1 {}}
+do_execsql_test 504 {
+  SELECT quote(- 'ce'), quote(t0.c0), quote(- 'ce' >= t0.c0) FROM t0;
+} {0 '-1' 1}
+do_execsql_test 505 {
+  SELECT * FROM t0 WHERE - 'ce' >= t0.c0;
+} {-1 {}}
+do_execsql_test 506 {
+  SELECT quote(+-+'ce'), quote(t0.c0), quote(+-+'ce' >= t0.c0) FROM t0;
+} {0 '-1' 1}
+do_execsql_test 507 {
+  SELECT * FROM t0 WHERE +-+'ce' >= t0.c0;
+} {-1 {}}
+ 
+# 2019-08-30 ticket https://www.sqlite.org/src/info/40812aea1fde9594
+#
+# Due to some differences in floating point computations, these tests do not
+# work under valgrind.
+#
+if {![info exists ::G(valgrind)]} {
+  do_execsql_test 600 {
+    DROP TABLE IF EXISTS t0;
+    CREATE TABLE t0(c0 REAL UNIQUE);
+    INSERT INTO t0(c0) VALUES (3175546974276630385);
+    SELECT 3175546974276630385 < c0 FROM t0;
+  } {1}
+  do_execsql_test 601 {
+    SELECT 1 FROM t0 WHERE 3175546974276630385 < c0;
+  } {1}
+}
+
+finish_test
diff --git a/test/affinity3.test b/test/affinity3.test
new file mode 100644
index 0000000000000000000000000000000000000000..3695ea84798a5d15a1d243d817cca09e89ed6082
--- /dev/null
+++ b/test/affinity3.test
@@ -0,0 +1,123 @@
+# 2017-01-16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test cases for bugs:
+#
+#    https://www.sqlite.org/src/info/91e2e8ba6ff2e2
+#    https://www.sqlite.org/src/info/7ffd1ca1d2ad4ecf
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Ticket https://www.sqlite.org/src/info/91e2e8ba6ff2e2 (2011-09-19)
+# Automatic index causes undesired type conversions
+#
+do_execsql_test affinity3-100 {
+  CREATE TABLE customer (id INT PRIMARY KEY);
+  CREATE TABLE apr (id INT PRIMARY KEY, apr REAL);
+  
+  CREATE VIEW v1 AS
+  SELECT c.id, i.apr
+  FROM customer c
+  LEFT JOIN apr i ON i.id=c.id;
+  
+  CREATE VIEW v1rj AS
+  SELECT c.id, i.apr
+  FROM apr i
+  RIGHT JOIN customer c ON i.id=c.id;
+  
+  CREATE VIEW v2 AS
+  SELECT c.id, v1.apr
+  FROM customer c
+  LEFT JOIN v1 ON v1.id=c.id;
+  
+  CREATE VIEW v2rj AS
+  SELECT c.id, v1.apr
+  FROM v1 RIGHT JOIN customer c ON v1.id=c.id;
+  
+  CREATE VIEW v2rjrj AS
+  SELECT c.id, v1rj.apr
+  FROM v1rj RIGHT JOIN customer c ON v1rj.id=c.id;
+  
+  INSERT INTO customer (id) VALUES (1);
+  INSERT INTO apr (id, apr) VALUES (1, 12);
+  INSERT INTO customer (id) VALUES (2);
+  INSERT INTO apr (id, apr) VALUES (2, 12.01);
+}
+do_execsql_test affinity3-110 {
+  PRAGMA automatic_index=ON;
+  SELECT id, (apr / 100), typeof(apr) apr_type  FROM v1;
+} {1 0.12 real 2 0.1201 real}
+do_execsql_test affinity3-111 {
+  PRAGMA automatic_index=ON;
+  SELECT id, (apr / 100), typeof(apr) apr_type  FROM v1rj;
+} {1 0.12 real 2 0.1201 real}
+do_execsql_test affinity3-120 {
+  SELECT id, (apr / 100), typeof(apr) apr_type  FROM v2;
+} {1 0.12 real 2 0.1201 real}
+do_execsql_test affinity3-121 {
+  SELECT id, (apr / 100), typeof(apr) apr_type  FROM v2rj;
+} {1 0.12 real 2 0.1201 real}
+do_execsql_test affinity3-122 {
+  SELECT id, (apr / 100), typeof(apr) apr_type  FROM v2rjrj;
+} {1 0.12 real 2 0.1201 real}
+do_execsql_test affinity3-130 {
+  PRAGMA automatic_index=OFF;
+  SELECT id, (apr / 100), typeof(apr) apr_type  FROM v1;
+} {1 0.12 real 2 0.1201 real}
+do_execsql_test affinity3-131 {
+  SELECT id, (apr / 100), typeof(apr) apr_type  FROM v1rj;
+} {1 0.12 real 2 0.1201 real}
+do_execsql_test affinity3-140 {
+  SELECT id, (apr / 100), typeof(apr) apr_type  FROM v2;
+} {1 0.12 real 2 0.1201 real}
+do_execsql_test affinity3-141 {
+  SELECT id, (apr / 100), typeof(apr) apr_type  FROM v2rj;
+} {1 0.12 real 2 0.1201 real}
+do_execsql_test affinity3-142 {
+  SELECT id, (apr / 100), typeof(apr) apr_type  FROM v2rjrj;
+} {1 0.12 real 2 0.1201 real}
+
+# Ticket https://www.sqlite.org/src/info/7ffd1ca1d2ad4ecf  (2017-01-16)
+# Incorrect affinity when using automatic indexes 
+#
+do_execsql_test affinity3-200 {
+  CREATE TABLE map_integer (id INT, name);
+  INSERT INTO map_integer VALUES(1,'a');
+  CREATE TABLE map_text (id TEXT, name);
+  INSERT INTO map_text VALUES('4','e');
+  CREATE TABLE data (id TEXT, name);
+  INSERT INTO data VALUES(1,'abc');
+  INSERT INTO data VALUES('4','xyz');
+  CREATE VIEW idmap as
+      SELECT * FROM map_integer
+      UNION SELECT * FROM map_text;
+  CREATE TABLE mzed AS SELECT * FROM idmap;
+}
+
+do_execsql_test affinity3-210 {
+  PRAGMA automatic_index=ON;
+  SELECT * FROM data JOIN idmap USING(id);
+} {4 xyz e}
+do_execsql_test affinity3-220 {
+  SELECT * FROM data JOIN mzed USING(id);
+} {4 xyz e}
+
+do_execsql_test affinity3-250 {
+  PRAGMA automatic_index=OFF;
+  SELECT * FROM data JOIN idmap USING(id);
+} {4 xyz e}
+do_execsql_test affinity3-260 {
+  SELECT * FROM data JOIN mzed USING(id);
+} {4 xyz e}
+
+finish_test
diff --git a/test/aggerror.test b/test/aggerror.test
new file mode 100644
index 0000000000000000000000000000000000000000..f95d8b220a8d663d2028444abe04094858d28288
--- /dev/null
+++ b/test/aggerror.test
@@ -0,0 +1,78 @@
+# 2006 January 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests for calling sqlite3_result_error()
+# from within an aggregate function implementation.
+#
+# $Id: aggerror.test,v 1.3 2006/05/03 23:34:06 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+
+# Add the x_count aggregate function to the database handle.
+# x_count will error out if its input is 40 or 41 or if its
+# final results is 42.  Make sure that such errors are handled
+# appropriately.
+#
+do_test aggerror-1.1 {
+  set DB [sqlite3_connection_pointer db]
+  sqlite3_create_aggregate $DB
+  execsql {
+    CREATE TABLE t1(a);
+    INSERT INTO t1 VALUES(1);
+    INSERT INTO t1 VALUES(2);
+    INSERT INTO t1 SELECT a+2 FROM t1;
+    INSERT INTO t1 SELECT a+4 FROM t1;
+    INSERT INTO t1 SELECT a+8 FROM t1;
+    INSERT INTO t1 SELECT a+16 FROM t1;
+    INSERT INTO t1 SELECT a+32 FROM t1 ORDER BY a LIMIT 7;
+    SELECT x_count(*) FROM t1;
+  }
+} {39}
+do_test aggerror-1.2 {
+  execsql {
+    INSERT INTO t1 VALUES(40);
+    SELECT x_count(*) FROM t1;
+  }
+} {40}
+do_test aggerror-1.3 {
+  catchsql {
+    SELECT x_count(a) FROM t1;
+  }
+} {1 {value of 40 handed to x_count}}
+ifcapable utf16 {
+  do_test aggerror-1.4 {
+    execsql {
+      UPDATE t1 SET a=41 WHERE a=40
+    }
+    catchsql {
+      SELECT x_count(a) FROM t1;
+    }
+  } {1 abc}
+}
+do_test aggerror-1.5 {
+  execsql {
+    SELECT x_count(*) FROM t1
+  }
+} 40
+do_test aggerror-1.6 {
+  execsql {
+    INSERT INTO t1 VALUES(40);
+    INSERT INTO t1 VALUES(42);
+  }
+  catchsql {
+    SELECT x_count(*) FROM t1;
+  }
+} {1 {x_count totals to 42}}
+
+finish_test
diff --git a/test/aggfault.test b/test/aggfault.test
new file mode 100644
index 0000000000000000000000000000000000000000..7c16b039cee645b8656e3432ec37fb8a2baf10ca
--- /dev/null
+++ b/test/aggfault.test
@@ -0,0 +1,43 @@
+# 2023 March 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix aggfault
+
+
+do_execsql_test 1 {
+  CREATE TABLE t1(x);
+  CREATE INDEX t1x ON t1(x, x=0);
+}
+faultsim_save_and_close
+
+do_faultsim_test 2 -faults oom* -prep {
+  faultsim_restore_and_reopen
+  execsql { SELECT * FROM sqlite_schema }
+} -body {
+  execsql {
+    SELECT * FROM t1 AS a1 WHERE (
+      SELECT count(x AND 0=a1.x) FROM t1 GROUP BY abs(1)
+    ) AND x=(
+      SELECT * FROM t1 AS a1 
+      WHERE (SELECT count(x IS 1 AND a1.x=0) 
+      FROM t1 
+      GROUP BY abs(1)) AND x=0
+    );
+  }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+
+finish_test
diff --git a/test/aggnested.test b/test/aggnested.test
new file mode 100644
index 0000000000000000000000000000000000000000..f3539076bddccfbba70304934d8b0e751ba31423
--- /dev/null
+++ b/test/aggnested.test
@@ -0,0 +1,487 @@
+# 2012-08-23
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests for processing aggregate queries with 
+# subqueries in which the subqueries hold the aggregate functions
+# or in which the subqueries are themselves aggregate queries
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix aggnested
+
+do_test aggnested-1.1 {
+  db eval {
+    CREATE TABLE t1(a1 INTEGER);
+    INSERT INTO t1 VALUES(1), (2), (3);
+    CREATE TABLE t2(b1 INTEGER);
+    INSERT INTO t2 VALUES(4), (5);
+    SELECT (SELECT string_agg(a1,'x') FROM t2) FROM t1;
+  }
+} {1x2x3}
+do_test aggnested-1.2 {
+  db eval {
+    SELECT
+     (SELECT string_agg(a1,'x') || '-' || string_agg(b1,'y') FROM t2)
+    FROM t1;
+  }
+} {1x2x3-4y5}
+do_test aggnested-1.3 {
+  db eval {
+    SELECT (SELECT string_agg(b1,a1) FROM t2) FROM t1;
+  }
+} {415 425 435}
+do_test aggnested-1.4 {
+  db eval {
+    SELECT (SELECT group_concat(a1,b1) FROM t2) FROM t1;
+  }
+} {151 252 353}
+
+
+# This test case is a copy of the one in
+# http://www.mail-archive.com/sqlite-users@sqlite.org/msg70787.html
+#
+do_test aggnested-2.0 {
+  sqlite3 db2 :memory:
+  db2 eval {
+    CREATE TABLE t1 (A1 INTEGER NOT NULL,A2 INTEGER NOT NULL,A3 INTEGER NOT 
+    NULL,A4 INTEGER NOT NULL,PRIMARY KEY(A1));
+    REPLACE INTO t1 VALUES(1,11,111,1111);
+    REPLACE INTO t1 VALUES(2,22,222,2222);
+    REPLACE INTO t1 VALUES(3,33,333,3333);
+    CREATE TABLE t2 (B1 INTEGER NOT NULL,B2 INTEGER NOT NULL,B3 INTEGER NOT 
+    NULL,B4 INTEGER NOT NULL,PRIMARY KEY(B1));
+    REPLACE INTO t2 VALUES(1,88,888,8888);
+    REPLACE INTO t2 VALUES(2,99,999,9999);
+    SELECT (SELECT GROUP_CONCAT(CASE WHEN a1=1 THEN'A' ELSE 'B' END) FROM t2),
+            t1.* 
+    FROM t1;
+  }
+} {A,B,B 1 11 111 1111}
+db2 close
+
+##################### Test cases for ticket [bfbf38e5e9956ac69f] ############
+#
+# This first test case is the original problem report:
+do_test aggnested-3.0 {
+  db eval {
+    CREATE TABLE AAA (
+      aaa_id       INTEGER PRIMARY KEY AUTOINCREMENT
+    );
+    CREATE TABLE RRR (
+      rrr_id      INTEGER     PRIMARY KEY AUTOINCREMENT,
+      rrr_date    INTEGER     NOT NULL,
+      rrr_aaa     INTEGER
+    );
+    CREATE TABLE TTT (
+      ttt_id      INTEGER PRIMARY KEY AUTOINCREMENT,
+      target_aaa  INTEGER NOT NULL,
+      source_aaa  INTEGER NOT NULL
+    );
+    insert into AAA (aaa_id) values (2);
+    insert into TTT (ttt_id, target_aaa, source_aaa)
+    values (4469, 2, 2);
+    insert into TTT (ttt_id, target_aaa, source_aaa)
+    values (4476, 2, 1);
+    insert into RRR (rrr_id, rrr_date, rrr_aaa)
+    values (0, 0, NULL);
+    insert into RRR (rrr_id, rrr_date, rrr_aaa)
+    values (2, 4312, 2);
+    SELECT i.aaa_id,
+      (SELECT sum(CASE WHEN (t.source_aaa == i.aaa_id) THEN 1 ELSE 0 END)
+         FROM TTT t
+      ) AS segfault
+    FROM
+     (SELECT curr.rrr_aaa as aaa_id
+        FROM RRR curr
+          -- you also can comment out the next line
+          -- it causes segfault to happen after one row is outputted
+          INNER JOIN AAA a ON (curr.rrr_aaa = aaa_id)
+          LEFT JOIN RRR r ON (r.rrr_id <> 0 AND r.rrr_date < curr.rrr_date)
+       GROUP BY curr.rrr_id
+      HAVING r.rrr_date IS NULL
+    ) i;
+  }
+} {2 1}
+
+# Further variants of the test case, as found in the ticket
+#
+do_test aggnested-3.1 {
+  db eval {
+    DROP TABLE IF EXISTS t1;
+    DROP TABLE IF EXISTS t2;
+    CREATE TABLE t1 (
+      id1 INTEGER PRIMARY KEY AUTOINCREMENT,
+      value1 INTEGER
+    );
+    INSERT INTO t1 VALUES(4469,2),(4476,1);
+    CREATE TABLE t2 (
+      id2 INTEGER PRIMARY KEY AUTOINCREMENT,
+      value2 INTEGER
+    );
+    INSERT INTO t2 VALUES(0,1),(2,2);
+    SELECT
+     (SELECT sum(value2==xyz) FROM t2)
+    FROM
+     (SELECT curr.value1 as xyz
+        FROM t1 AS curr LEFT JOIN t1 AS other
+       GROUP BY curr.id1);
+  }
+} {1 1}
+do_test aggnested-3.1-rj {
+  db eval {
+    SELECT
+     (SELECT sum(value2==xyz) FROM t2)
+    FROM
+     (SELECT curr.value1 as xyz
+        FROM t1 AS other RIGHT JOIN t1 AS curr
+       GROUP BY curr.id1);
+  }
+} {1 1}
+
+do_test aggnested-3.2 {
+  db eval {
+    DROP TABLE IF EXISTS t1;
+    DROP TABLE IF EXISTS t2;
+    CREATE TABLE t1 (
+      id1 INTEGER,
+      value1 INTEGER,
+      x1 INTEGER
+    );
+    INSERT INTO t1 VALUES(4469,2,98),(4469,1,99),(4469,3,97);
+    CREATE TABLE t2 (
+      value2 INTEGER
+    );
+    INSERT INTO t2 VALUES(1);
+    SELECT
+     (SELECT sum(value2==xyz) FROM t2)
+    FROM
+     (SELECT value1 as xyz, max(x1) AS pqr
+        FROM t1
+       GROUP BY id1);
+    SELECT
+     (SELECT sum(value2<>xyz) FROM t2)
+    FROM
+     (SELECT value1 as xyz, max(x1) AS pqr
+        FROM t1
+       GROUP BY id1);
+  }
+} {1 0}
+do_test aggnested-3.3 {
+  db eval {
+    DROP TABLE IF EXISTS t1;
+    DROP TABLE IF EXISTS t2;
+    CREATE TABLE t1(id1, value1);
+    INSERT INTO t1 VALUES(4469,2),(4469,1);
+    CREATE TABLE t2 (value2);
+    INSERT INTO t2 VALUES(1);
+    SELECT (SELECT sum(value2=value1) FROM t2), max(value1)
+      FROM t1
+     GROUP BY id1;
+  }
+} {0 2}
+
+# A batch of queries all doing approximately the same operation involving
+# two nested aggregate queries.
+#
+do_test aggnested-3.11 {
+  db eval {
+    DROP TABLE IF EXISTS t1;
+    DROP TABLE IF EXISTS t2;
+    CREATE TABLE t1(id1, value1);
+    INSERT INTO t1 VALUES(4469,12),(4469,11),(4470,34);
+    CREATE INDEX t1id1 ON t1(id1);
+    CREATE TABLE t2 (value2);
+    INSERT INTO t2 VALUES(12),(34),(34);
+    INSERT INTO t2 SELECT value2 FROM t2;
+
+    SELECT max(value1), (SELECT count(*) FROM t2 WHERE value2=max(value1))
+      FROM t1
+     GROUP BY id1;
+  }
+} {12 2 34 4}
+do_test aggnested-3.12 {
+  db eval {
+    SELECT max(value1), (SELECT count(*) FROM t2 WHERE value2=value1)
+      FROM t1
+     GROUP BY id1;
+  }
+} {12 2 34 4}
+do_test aggnested-3.13 {
+  db eval {
+    SELECT value1, (SELECT sum(value2=value1) FROM t2)
+      FROM t1;
+  }
+} {12 2 11 0 34 4}
+do_test aggnested-3.14 {
+  db eval {
+    SELECT value1, (SELECT sum(value2=value1) FROM t2)
+      FROM t1
+     WHERE value1 IN (SELECT max(value1) FROM t1 GROUP BY id1);
+  }
+} {12 2 34 4}
+do_test aggnested-3.15 {
+  # FIXME:  If case 3.16 works, then this case really ought to work too...
+  catchsql {
+    SELECT max(value1), (SELECT sum(value2=max(value1)) FROM t2)
+      FROM t1
+     GROUP BY id1;
+  }
+} {1 {misuse of aggregate function max()}}
+do_test aggnested-3.16 {
+  db eval {
+    SELECT max(value1), (SELECT sum(value2=value1) FROM t2)
+      FROM t1
+     GROUP BY id1;
+  }
+} {12 2 34 4}
+
+# 2019-08-31
+# Problem found by dbsqlfuzz
+#
+do_execsql_test aggnested-4.1 {
+  DROP TABLE IF EXISTS aa;
+  DROP TABLE IF EXISTS bb;
+  CREATE TABLE aa(x INT);  INSERT INTO aa(x) VALUES(123);
+  CREATE TABLE bb(y INT);  INSERT INTO bb(y) VALUES(456);
+  SELECT (SELECT sum(x+(SELECT y)) FROM bb) FROM aa;
+} {579}
+do_execsql_test aggnested-4.2 {
+  SELECT (SELECT sum(x+y) FROM bb) FROM aa;
+} {579}
+do_execsql_test aggnested-4.3 {
+  DROP TABLE IF EXISTS tx;
+  DROP TABLE IF EXISTS ty;
+  CREATE TABLE tx(x INT);
+  INSERT INTO tx VALUES(1),(2),(3),(4),(5);
+  CREATE TABLE ty(y INT);
+  INSERT INTO ty VALUES(91),(92),(93);
+  SELECT min((SELECT count(y) FROM ty)) FROM tx;
+} {3}
+do_execsql_test aggnested-4.4 {
+  SELECT max((SELECT a FROM (SELECT count(*) AS a FROM ty) AS s)) FROM tx;
+} {3}
+
+#--------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 5.0 {
+  CREATE TABLE x1(a, b);
+  INSERT INTO x1 VALUES(1, 2);
+  CREATE TABLE x2(x);
+  INSERT INTO x2 VALUES(NULL), (NULL), (NULL);
+}
+
+# At one point, aggregate "total()" in the query below was being processed
+# as part of the outer SELECT, not as part of the sub-select with no FROM
+# clause.
+do_execsql_test 5.1 {
+  SELECT ( SELECT total( (SELECT b FROM x1) ) ) FROM x2;
+} {2.0 2.0 2.0}
+
+do_execsql_test 5.2 {
+  SELECT ( SELECT total( (SELECT 2 FROM x1) ) ) FROM x2;
+} {2.0 2.0 2.0}
+
+do_execsql_test 5.3 {
+  CREATE TABLE t1(a);
+  CREATE TABLE t2(b);
+}
+
+do_execsql_test 5.4 {
+  SELECT(
+    SELECT max(b) LIMIT (
+      SELECT total( (SELECT a FROM t1) )
+    )
+  )
+  FROM t2;
+} {{}}
+
+do_execsql_test 5.5 {
+  CREATE TABLE a(b);
+  WITH c AS(SELECT a)
+    SELECT(SELECT(SELECT string_agg(b, b)
+          LIMIT(SELECT 0.100000 *
+            AVG(DISTINCT(SELECT 0 FROM a ORDER BY b, b, b))))
+        FROM a GROUP BY b,
+        b, b) FROM a EXCEPT SELECT b FROM a ORDER BY b,
+    b, b;
+}
+
+#-------------------------------------------------------------------------
+# dbsqlfuzz a779227f721a834df95f4f42d0c31550a1f8b8a2 
+#
+reset_db
+do_execsql_test 6.0 {
+  CREATE TABLE t1(a);
+  CREATE TABLE t2(b);
+
+  INSERT INTO t1 VALUES('x');
+  INSERT INTO t2 VALUES(1);
+}
+
+do_execsql_test 6.1.1 {
+  SELECT ( 
+    SELECT t2.b FROM (SELECT t2.b AS c FROM t1) GROUP BY 1 HAVING t2.b
+  )
+  FROM t2 GROUP BY 'constant_string';
+} {1}
+do_execsql_test 6.1.2 {
+  SELECT ( 
+    SELECT c FROM (SELECT t2.b AS c FROM t1) GROUP BY c HAVING t2.b
+  )
+  FROM t2 GROUP BY 'constant_string';
+} {1}
+
+do_execsql_test 6.2.0 {
+  UPDATE t2 SET b=0
+}
+do_execsql_test 6.2.1 {
+  SELECT ( 
+    SELECT t2.b FROM (SELECT t2.b AS c FROM t1) GROUP BY 1 HAVING t2.b
+  )
+  FROM t2 GROUP BY 'constant_string';
+} {{}}
+do_execsql_test 6.2.2 {
+  SELECT ( 
+    SELECT c FROM (SELECT t2.b AS c FROM t1) GROUP BY c HAVING t2.b
+  )
+  FROM t2 GROUP BY 'constant_string';
+} {{}}
+
+#-------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 7.0 {
+  CREATE TABLE invoice (
+      id INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
+      amount DOUBLE PRECISION DEFAULT NULL,
+      name VARCHAR(100) DEFAULT NULL
+  );
+
+  INSERT INTO invoice (amount, name) VALUES 
+      (4.0, 'Michael'), (15.0, 'Bara'), (4.0, 'Michael'), (6.0, 'John');
+}
+
+do_execsql_test 7.1 {
+  SELECT sum(amount), name
+    from invoice
+  group by name
+  having (select v > 6 from (select sum(amount) v) t)
+} {
+  15.0 Bara
+  8.0 Michael
+}
+
+do_execsql_test 7.2 {
+  SELECT (select 1 from (select sum(amount))) FROM invoice
+} {1}
+
+do_execsql_test 8.0 {
+  CREATE TABLE t1(x INT);
+  INSERT INTO t1 VALUES(100);
+  INSERT INTO t1 VALUES(20);
+  INSERT INTO t1 VALUES(3);
+  SELECT (SELECT y FROM (SELECT sum(x) AS y) AS t2 ) FROM t1;
+} {123}
+
+do_execsql_test 8.1 {
+  SELECT (
+    SELECT y FROM (
+      SELECT z AS y FROM (SELECT sum(x) AS z) AS t2 
+    ) 
+  ) FROM t1;
+} {123}
+
+do_execsql_test 8.2 {
+  SELECT (
+    SELECT a FROM (
+      SELECT y AS a FROM (
+        SELECT z AS y FROM (SELECT sum(x) AS z) AS t2 
+      ) 
+    )
+  ) FROM t1;
+} {123}
+
+#-------------------------------------------------------------------------
+# dbsqlfuzz 04408efc51ae46897c4c122b407412045ed221b4
+#
+reset_db
+
+do_execsql_test 9.1 {
+  WITH out(i, j, k) AS ( 
+      VALUES(1234, 5678, 9012) 
+  )
+  SELECT (
+    SELECT (
+      SELECT min(abc) = ( SELECT ( SELECT 1234 fROM (SELECT abc) ) ) 
+      FROM (
+        SELECT sum( out.i ) + ( SELECT sum( out.i ) ) AS abc FROM (SELECT out.j)
+      )
+    ) 
+  ) FROM out;
+} {0}
+
+do_execsql_test 9.2 {
+  CREATE TABLE t1(a);
+  CREATE TABLE t2(b);
+  INSERT INTO t1 VALUES(1), (2), (3);
+  INSERT INTO t2 VALUES(4), (5), (6);
+
+  SELECT ( 
+    SELECT min(y) + (SELECT x) FROM (
+      SELECT sum(a) AS x, b AS y FROM t2
+    )
+  )
+  FROM t1;
+} {10}
+
+do_execsql_test 9.3 {
+  SELECT ( 
+    SELECT min(y) + (SELECT (SELECT x)) FROM (
+      SELECT sum(a) AS x, b AS y FROM t2
+    )
+  )
+  FROM t1;
+} {10}
+
+do_execsql_test 9.4 {
+  SELECT (
+    SELECT (SELECT x) FROM (
+      SELECT sum(a) AS x, b AS y FROM t2
+      ) GROUP BY y
+    )
+  FROM t1;
+} {6}
+
+do_execsql_test 9.5 {
+  SELECT (
+    SELECT (SELECT (SELECT x)) FROM (
+      SELECT sum(a) AS x, b AS y FROM t2
+      ) GROUP BY y
+    )
+  FROM t1;
+} {6}
+
+# 2023-12-16
+# New test case for check-in [4470f657d2069972] from 2023-11-02
+# https://bugs.chromium.org/p/chromium/issues/detail?id=1511689
+#
+do_execsql_test 10.1 {
+  DROP TABLE IF EXISTS t0;
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t0(c1, c2);  INSERT INTO t0 VALUES(1,2);
+  CREATE TABLE t1(c3, c4);  INSERT INTO t1 VALUES(3,4);
+  SELECT * FROM t0 WHERE EXISTS (SELECT 1 FROM t1 GROUP BY c3 HAVING ( SELECT count(*) FROM (SELECT 1 UNION ALL SELECT sum(DISTINCT c1) ) ) ) BETWEEN 1 AND 1;
+} {1 2}
+
+finish_test
diff --git a/test/aggorderby.test b/test/aggorderby.test
new file mode 100644
index 0000000000000000000000000000000000000000..eed1f83a7e00474f92d6520973a77915531f583b
--- /dev/null
+++ b/test/aggorderby.test
@@ -0,0 +1,162 @@
+# 2023-10-18
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements tests for ORDER BY on aggregate functions.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_execsql_test aggorderby-1.1 {
+  CREATE TABLE t1(a TEXT,b INT,c INT,d INT);
+  WITH RECURSIVE c(x) AS (VALUES(0) UNION ALL SELECT x+1 FROM c WHERE x<9)
+  INSERT INTO t1(a,b,c,d) SELECT printf('%d',(x*7)%10),1,x,10-x FROM c;
+  INSERT INTO t1(a,b,c,d) SELECT a, 2, c, 10-d FROM t1;
+  CREATE INDEX t1b ON t1(b);
+}
+do_catchsql_test aggorderby-1.2 {
+  SELECT b, group_concat(a ORDER BY max(d)) FROM t1 GROUP BY b;
+} {1 {misuse of aggregate function max()}}
+do_catchsql_test aggorderby-1.3 {
+  SELECT abs(a ORDER BY max(d)) FROM t1;
+} {1 {ORDER BY may not be used with non-aggregate abs()}}
+
+do_execsql_test aggorderby-2.0 {
+  SELECT group_concat(a ORDER BY a) FROM t1 WHERE b=1;
+} {0,1,2,3,4,5,6,7,8,9}
+do_execsql_test aggorderby-2.1 {
+  SELECT group_concat(a ORDER BY c) FROM t1 WHERE b=1;
+} {0,7,4,1,8,5,2,9,6,3}
+do_execsql_test aggorderby-2.2 {
+  SELECT group_concat(a ORDER BY b, d) FROM t1;
+} {3,6,9,2,5,8,1,4,7,0,0,7,4,1,8,5,2,9,6,3}
+do_execsql_test aggorderby-2.3 {
+  SELECT string_agg(a, ',' ORDER BY b DESC, d) FROM t1;
+} {0,7,4,1,8,5,2,9,6,3,3,6,9,2,5,8,1,4,7,0}
+do_execsql_test aggorderby-2.4 {
+  SELECT b, group_concat(a ORDER BY d) FROM t1 GROUP BY b ORDER BY b;
+} {1 3,6,9,2,5,8,1,4,7,0 2 0,7,4,1,8,5,2,9,6,3}
+
+do_execsql_test aggorderby-3.0 {
+  SELECT group_concat(DISTINCT a ORDER BY a) FROM t1;
+} {0,1,2,3,4,5,6,7,8,9}
+do_execsql_test aggorderby-3.1 {
+  SELECT group_concat(DISTINCT a ORDER BY c) FROM t1;
+} {0,7,4,1,8,5,2,9,6,3}
+
+do_execsql_test aggorderby-4.0 {
+  SELECT count(ORDER BY a) FROM t1;
+} 20
+do_execsql_test aggorderby-4.1 {
+  SELECT c, max(a ORDER BY a) FROM t1;
+} {7 9}
+
+
+do_execsql_test aggorderby-5.0 {
+  DROP TABLE IF EXISTS t1;
+  DROP TABLE IF EXISTS t3;
+  CREATE TABLE t1(a TEXT);  INSERT INTO t1 VALUES('aaa'),('bbb');
+  CREATE TABLE t3(d TEXT);  INSERT INTO t3 VALUES('/'),('-');
+  SELECT (SELECT string_agg(a,d) FROM t3) FROM t1;
+} {aaa-aaa bbb-bbb}
+do_execsql_test aggorderby-5.1 {
+  SELECT (SELECT group_concat(a,d ORDER BY d) FROM t3) FROM t1;
+} {aaa/aaa bbb/bbb}
+do_execsql_test aggorderby-5.2 {
+  SELECT (SELECT string_agg(a,d ORDER BY d DESC) FROM t3) FROM t1;
+} {aaa-aaa bbb-bbb}
+do_execsql_test aggorderby-5.3 {
+  SELECT (SELECT string_agg(a,'#' ORDER BY d) FROM t3) FROM t1;
+} {aaa#aaa bbb#bbb}
+
+# COLLATE works on the ORDER BY.
+#
+do_execsql_test aggorderby-6.0 {
+  WITH c(x) AS (VALUES('abc'),('DEF'),('xyz'),('ABC'),('XYZ'))
+  SELECT string_agg(x,',' ORDER BY x COLLATE nocase),
+         string_agg(x,',' ORDER BY x) FROM c;
+} {abc,ABC,DEF,xyz,XYZ ABC,DEF,XYZ,abc,xyz}
+do_execsql_test aggorderby-6.1 {
+  WITH c(x,y) AS (VALUES(1,'a'),(2,'B'),(3,'c'),(4,'D'))
+  SELECT group_concat(x ORDER BY y COLLATE nocase),
+         group_concat(x ORDER BY y COLLATE binary) FROM c;
+} {1,2,3,4 2,4,1,3}
+
+# NULLS FIRST and NULLS LAST work on the ORDER BY
+#
+do_execsql_test aggorderby-7.0 {
+  WITH c(x) AS (VALUES(1),(NULL),(2.5),(NULL),('three'))
+  SELECT json_group_array(x ORDER BY x NULLS FIRST),
+         json_group_array(x ORDER BY x NULLS LAST) FROM c;
+} {[null,null,1,2.5,"three"] [1,2.5,"three",null,null]}
+do_execsql_test aggorderby-7.1 {
+  WITH c(x,y) AS (VALUES(1,9),(2,null),(3,5),(4,null),(5,1))
+  SELECT json_group_array(x ORDER BY y NULLS FIRST, x),
+         json_group_array(x ORDER BY y NULLS LAST, x) FROM c;
+} {[2,4,5,3,1] [5,3,1,2,4]}
+
+# The DISTINCT only applies to the function arguments, not to the
+# ORDER BY arguments.
+#
+do_execsql_test aggorderby-8.0 {
+  WITH c(x,y,z) AS (VALUES('a',4,5),('b',3,6),('c',2,7),('c',1,8))
+  SELECT group_concat(DISTINCT x ORDER BY y, z) FROM c;
+} {c,b,a}
+do_execsql_test aggorderby-8.1 {
+  WITH c(x,y,z) AS (VALUES('a',4,5),('b',3,6),('b',2,7),('c',1,8))
+  SELECT group_concat(DISTINCT x ORDER BY y, z) FROM c;
+} {c,b,a}
+do_execsql_test aggorderby-8.2 {
+  WITH c(x,y) AS (VALUES(1,1),(2,2),(3,3),(3,4),(3,5),(3,6))
+  SELECT sum(DISTINCT x ORDER BY y) FROM c;
+} 6
+
+# Subtype information is transfered through the sorter for aggregates
+# that make use of subtype info.
+#
+do_execsql_test aggorderby-9.0 {
+  WITH c(x,y) AS (VALUES
+    ('{a:3}', 3),
+    ('[1,1]', 1),
+    ('[4,4]', 4),
+    ('{x:2}', 2))
+  SELECT json_group_array(json(x) ORDER BY y) FROM c;
+} {{[[1,1],{"x":2},{"a":3},[4,4]]}}
+do_execsql_test aggorderby-9.1 {
+  WITH c(x,y) AS (VALUES
+    ('[4,4]', 4),
+    ('{a:3}', 3),
+    ('[4,4]', 4),
+    ('[1,1]', 1),
+    ('[4,4]', 4),
+    ('{x:2}', 2))
+  SELECT json_group_array(DISTINCT json(x) ORDER BY y) FROM c;
+} {{[[1,1],{"x":2},{"a":3},[4,4]]}}
+do_execsql_test aggorderby-9.2 {
+  WITH c(x,y) AS (VALUES
+    ('{a:3}', 3),
+    ('[1,1]', 1),
+    ('[4,4]', 4),
+    ('{x:2}', 2))
+  SELECT json_group_array(json(x) ORDER BY json(x)) FROM c;
+} {{[[1,1],[4,4],{"a":3},{"x":2}]}}
+do_execsql_test aggorderby-9.3 {
+  WITH c(x,y) AS (VALUES
+    ('[4,4]', 4),
+    ('{a:3}', 3),
+    ('[4,4]', 4),
+    ('[1,1]', 1),
+    ('[4,4]', 4),
+    ('{x:2}', 2))
+  SELECT json_group_array(DISTINCT json(x) ORDER BY json(x)) FROM c;
+} {{[[1,1],[4,4],{"a":3},{"x":2}]}}
+
+
+finish_test
diff --git a/test/alias.test b/test/alias.test
new file mode 100644
index 0000000000000000000000000000000000000000..290798974b74c2e680d4af75c8e122f6f22ade89
--- /dev/null
+++ b/test/alias.test
@@ -0,0 +1,140 @@
+# 2008 August 28
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements regression tests for SQLite library.  The
+# focus of this script is correct code generation of aliased result-set
+# values.  See ticket #3343.
+#
+# $Id: alias.test,v 1.3 2009/04/23 13:22:44 drh Exp $
+#
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Aliases are currently evaluated twice.  We might try to change this
+# in the future.  But not now.
+return
+
+# A procedure to return a sequence of increasing integers.
+#
+namespace eval ::seq {
+  variable counter 0
+  proc value {args} {
+    variable counter
+    incr counter
+    return $counter
+  }
+  proc reset {} {
+    variable counter
+    set counter 0
+  }
+}
+
+
+do_test alias-1.1 {
+  db function sequence ::seq::value
+  db eval {
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(9);
+    INSERT INTO t1 VALUES(8);
+    INSERT INTO t1 VALUES(7);
+    SELECT x, sequence() FROM t1;
+  }
+} {9 1 8 2 7 3}
+do_test alias-1.2 {
+  ::seq::reset
+  db eval {
+    SELECT x, sequence() AS y FROM t1 WHERE y>0
+  }
+} {9 1 8 2 7 3}
+do_test alias-1.3 {
+  ::seq::reset
+  db eval {
+    SELECT x, sequence() AS y FROM t1 WHERE y>0 AND y<99
+  }
+} {9 1 8 2 7 3}
+do_test alias-1.4 {
+  ::seq::reset
+  db eval {
+    SELECT x, sequence() AS y FROM t1 WHERE y>0 AND y<99 AND y!=55
+  }
+} {9 1 8 2 7 3}
+do_test alias-1.5 {
+  ::seq::reset
+  db eval {
+    SELECT x, sequence() AS y FROM t1
+     WHERE y>0 AND y<99 AND y!=55 AND y NOT IN (56,57,58)
+       AND y NOT LIKE 'abc%' AND y%10==2
+  }
+} {8 2}
+do_test alias-1.6 {
+  ::seq::reset
+  db eval {
+    SELECT x, sequence() AS y FROM t1 WHERE y BETWEEN 0 AND 99
+  }
+} {9 1 8 2 7 3}
+#do_test alias-1.7 {
+#  ::seq::reset
+#  db eval {
+#    SELECT x, sequence() AS y FROM t1 WHERE y IN (55,66,3)
+#  }
+#} {7 3}
+do_test alias-1.8 {
+  ::seq::reset
+  db eval {
+    SELECT x, 1-sequence() AS y FROM t1 ORDER BY y
+  }
+} {7 -2 8 -1 9 0}
+do_test alias-1.9 {
+  ::seq::reset
+  db eval {
+    SELECT x, sequence() AS y FROM t1 ORDER BY -y
+  }
+} {7 3 8 2 9 1}
+do_test alias-1.10 {
+  ::seq::reset
+  db eval {
+    SELECT x, sequence() AS y FROM t1 ORDER BY x%2, y
+  }
+} {8 2 9 1 7 3}
+
+unset -nocomplain random_int_list
+set random_int_list [db eval {
+   SELECT random()&2147483647 AS r FROM t1, t1, t1, t1 ORDER BY r
+}]
+do_test alias-1.11 {
+  lsort -integer $::random_int_list
+} $random_int_list
+
+
+do_test alias-2.1 {
+  db eval {
+    SELECT 4 UNION SELECT 1 ORDER BY 1
+  }
+} {1 4}
+do_test alias-2.2 {
+  db eval {
+    SELECT 4 UNION SELECT 1 UNION SELECT 9 ORDER BY 1
+  }
+} {1 4 9}
+
+if 0 {
+  # Aliases in the GROUP BY clause cause the expression to be evaluated
+  # twice in the current implementation.  This might change in the future.
+  #
+  do_test alias-3.1 {
+    ::seq::reset
+    db eval {
+      SELECT sequence(*) AS y, count(*) AS z FROM t1 GROUP BY y ORDER BY z, y
+    }
+  } {1 1 2 1 3 1}
+}
+
+finish_test
diff --git a/test/all.test b/test/all.test
new file mode 100644
index 0000000000000000000000000000000000000000..46e8115fba6534d2ddce990bc8917fc9729c3fca
--- /dev/null
+++ b/test/all.test
@@ -0,0 +1,51 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file runs all tests.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/permutations.test
+
+run_test_suite full
+
+ifcapable rbu { run_test_suite rbu }
+run_test_suite no_optimization 
+run_test_suite memsubsys1 
+run_test_suite memsubsys2 
+run_test_suite singlethread 
+run_test_suite multithread 
+run_test_suite onefile 
+run_test_suite utf16 
+run_test_suite exclusive
+run_test_suite persistent_journal 
+run_test_suite persistent_journal_error 
+run_test_suite no_journal 
+run_test_suite no_journal_error
+run_test_suite autovacuum_ioerr 
+run_test_suite no_mutex_try 
+run_test_suite fullmutex 
+run_test_suite journaltest 
+run_test_suite inmemory_journal
+run_test_suite pcache0 
+run_test_suite pcache10 
+run_test_suite pcache50 
+run_test_suite pcache90 
+run_test_suite pcache100
+run_test_suite prepare
+run_test_suite mmap
+
+if {$::tcl_platform(platform)=="unix"} {
+  ifcapable !default_autovacuum {
+    run_test_suite autovacuum_crash
+  }
+}
+
+finish_test
diff --git a/test/alter.test b/test/alter.test
new file mode 100644
index 0000000000000000000000000000000000000000..9201f40adcad2c9ec9c399883f293e1a1b2ddd11
--- /dev/null
+++ b/test/alter.test
@@ -0,0 +1,986 @@
+# 2004 November 10
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the ALTER TABLE statement.
+#
+# $Id: alter.test,v 1.32 2009/03/24 15:08:10 drh Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If SQLITE_OMIT_ALTERTABLE is defined, omit this file.
+ifcapable !altertable {
+  finish_test
+  return
+}
+
+#----------------------------------------------------------------------
+# Test organization:
+#
+# alter-1.1.* - alter-1.7.*: Basic tests of ALTER TABLE, including tables
+#     with implicit and explicit indices. These tests came from an earlier
+#     fork of SQLite that also supported ALTER TABLE.
+# alter-1.8.*: Tests for ALTER TABLE when the table resides in an 
+#     attached database.
+# alter-1.9.*: Tests for ALTER TABLE when their is whitespace between the
+#     table name and left parenthesis token. i.e: 
+#     "CREATE TABLE abc       (a, b, c);"
+# alter-2.*: Test error conditions and messages.
+# alter-3.*: Test ALTER TABLE on tables that have TRIGGERs attached to them.
+# alter-4.*: Test ALTER TABLE on tables that have AUTOINCREMENT fields.
+# ...
+# alter-12.*: Test ALTER TABLE on views.
+#
+
+# Create some tables to rename.  Be sure to include some TEMP tables
+# and some tables with odd names.
+#
+do_test alter-1.1 {
+  ifcapable tempdb {
+    set ::temp TEMP
+  } else {
+    set ::temp {}
+  }
+  execsql [subst -nocommands {
+    CREATE TABLE t1(a,b);
+    INSERT INTO t1 VALUES(1,2);
+    CREATE TABLE [t1'x1](c UNIQUE, b PRIMARY KEY);
+    INSERT INTO [t1'x1] VALUES(3,4);
+    CREATE INDEX t1i1 ON T1(B);
+    CREATE INDEX t1i2 ON t1(a,b);
+    CREATE INDEX i3 ON [t1'x1](b,c);
+    CREATE $::temp TABLE "temp table"(e,f,g UNIQUE);
+    CREATE INDEX i2 ON [temp table](f);
+    INSERT INTO [temp table] VALUES(5,6,7);
+  }]
+  execsql {
+    SELECT 't1', * FROM t1;
+    SELECT 't1''x1', * FROM "t1'x1";
+    SELECT * FROM [temp table];
+  }
+} {t1 1 2 t1'x1 3 4 5 6 7}
+do_test alter-1.2 {
+  execsql [subst {
+    CREATE $::temp TABLE objlist(type, name, tbl_name);
+    INSERT INTO objlist SELECT type, name, tbl_name 
+        FROM sqlite_master WHERE NAME!='objlist';
+  }]
+  ifcapable tempdb {
+    execsql {
+      INSERT INTO objlist SELECT type, name, tbl_name 
+          FROM temp.sqlite_master WHERE NAME!='objlist';
+    }
+  }
+
+  execsql {
+    SELECT type, name, tbl_name FROM objlist ORDER BY tbl_name, type desc, name;
+  }
+} [list \
+     table t1                              t1             \
+     index t1i1                            t1             \
+     index t1i2                            t1             \
+     table t1'x1                           t1'x1          \
+     index i3                              t1'x1          \
+     index {sqlite_autoindex_t1'x1_1}      t1'x1          \
+     index {sqlite_autoindex_t1'x1_2}      t1'x1          \
+     table {temp table}                    {temp table}   \
+     index i2                              {temp table}   \
+     index {sqlite_autoindex_temp table_1} {temp table}   \
+  ]
+
+# Make some changes
+#
+integrity_check alter-1.3.0
+do_test alter-1.3 {
+  execsql {
+    ALTER TABLE [T1] RENAME to [-t1-];
+    ALTER TABLE "t1'x1" RENAME TO T2;
+    ALTER TABLE [temp table] RENAME to TempTab;
+  }
+} {}
+integrity_check alter-1.3.1
+do_test alter-1.4 {
+  execsql {
+    SELECT 't1', * FROM [-t1-];
+    SELECT 't2', * FROM t2;
+    SELECT * FROM temptab;
+  }
+} {t1 1 2 t2 3 4 5 6 7}
+do_test alter-1.5 {
+  execsql {
+    DELETE FROM objlist;
+    INSERT INTO objlist SELECT type, name, tbl_name
+        FROM sqlite_master WHERE NAME!='objlist';
+  }
+  catchsql {
+    INSERT INTO objlist SELECT type, name, tbl_name 
+        FROM sqlite_temp_master WHERE NAME!='objlist';
+  }
+  execsql {
+    SELECT type, name, tbl_name FROM objlist ORDER BY tbl_name, type desc, name;
+  }
+} [list \
+     table -t1-                         -t1-        \
+     index t1i1                         -t1-        \
+     index t1i2                         -t1-        \
+     table T2                           T2          \
+     index i3                           T2          \
+     index {sqlite_autoindex_T2_1}      T2          \
+     index {sqlite_autoindex_T2_2}      T2          \
+     table {TempTab}                    {TempTab}   \
+     index i2                           {TempTab}   \
+     index {sqlite_autoindex_TempTab_1} {TempTab}   \
+  ]
+
+# Make sure the changes persist after restarting the database.
+# (The TEMP table will not persist, of course.)
+#
+ifcapable tempdb {
+  do_test alter-1.6 {
+    db close
+    sqlite3 db test.db
+    set DB [sqlite3_connection_pointer db]
+    execsql {
+      CREATE TEMP TABLE objlist(type, name, tbl_name);
+      INSERT INTO objlist SELECT type, name, tbl_name FROM sqlite_master;
+      INSERT INTO objlist 
+          SELECT type, name, tbl_name FROM temp.sqlite_master 
+          WHERE NAME!='objlist';
+      SELECT type, name, tbl_name FROM objlist 
+          ORDER BY tbl_name, type desc, name;
+    }
+  } [list \
+       table -t1-                         -t1-           \
+       index t1i1                         -t1-           \
+       index t1i2                         -t1-           \
+       table T2                           T2          \
+       index i3                           T2          \
+       index {sqlite_autoindex_T2_1}      T2          \
+       index {sqlite_autoindex_T2_2}      T2          \
+    ]
+} else {
+  execsql {
+    DROP TABLE TempTab;
+  }
+}
+
+# Create bogus application-defined functions for functions used 
+# internally by ALTER TABLE, to ensure that ALTER TABLE falls back
+# to the built-in functions.
+#
+proc failing_app_func {args} {error "bad function"}
+do_test alter-1.7-prep {
+  db func substr failing_app_func
+  db func like failing_app_func
+  db func sqlite_rename_table failing_app_func
+  db func sqlite_rename_trigger failing_app_func
+  db func sqlite_rename_parent failing_app_func
+  catchsql {SELECT substr(name,1,3) FROM sqlite_master}
+} {1 {bad function}}
+
+# Make sure the ALTER TABLE statements work with the
+# non-callback API
+#
+do_test alter-1.7 {
+  stepsql $DB {
+    ALTER TABLE [-t1-] RENAME to [*t1*];
+    ALTER TABLE T2 RENAME TO [<t2>];
+  }
+  execsql {
+    DELETE FROM objlist;
+    INSERT INTO objlist SELECT type, name, tbl_name
+        FROM sqlite_master WHERE NAME!='objlist';
+  }
+  catchsql {
+    INSERT INTO objlist SELECT type, name, tbl_name 
+        FROM sqlite_temp_master WHERE NAME!='objlist';
+  }
+  execsql {
+    SELECT type, name, tbl_name FROM objlist ORDER BY tbl_name, type desc, name;
+  }
+} [list \
+     table *t1*                         *t1*           \
+     index t1i1                         *t1*           \
+     index t1i2                         *t1*           \
+     table <t2>                         <t2>          \
+     index i3                           <t2>          \
+     index {sqlite_autoindex_<t2>_1}    <t2>          \
+     index {sqlite_autoindex_<t2>_2}    <t2>          \
+  ]
+
+# Check that ALTER TABLE works on attached databases.
+#
+ifcapable attach {
+  do_test alter-1.8.1 {
+    forcedelete test2.db
+    forcedelete test2.db-journal
+    execsql {
+      ATTACH 'test2.db' AS aux;
+    }
+  } {}
+  do_test alter-1.8.2 {
+    execsql {
+      CREATE TABLE t4(a PRIMARY KEY, b, c);
+      CREATE TABLE aux.t4(a PRIMARY KEY, b, c);
+      CREATE INDEX i4 ON t4(b);
+      CREATE INDEX aux.i4 ON t4(b);
+    }
+  } {}
+  do_test alter-1.8.3 {
+    execsql {
+      INSERT INTO t4 VALUES('main', 'main', 'main');
+      INSERT INTO aux.t4 VALUES('aux', 'aux', 'aux');
+      SELECT * FROM t4 WHERE a = 'main';
+    }
+  } {main main main}
+  do_test alter-1.8.4 {
+    execsql {
+      ALTER TABLE t4 RENAME TO t5;
+      SELECT * FROM t4 WHERE a = 'aux';
+    }
+  } {aux aux aux}
+  do_test alter-1.8.5 {
+    execsql {
+      SELECT * FROM t5;
+    }
+  } {main main main}
+  do_test alter-1.8.6 {
+    execsql {
+      SELECT * FROM t5 WHERE b = 'main';
+    }
+  } {main main main}
+  do_test alter-1.8.7 {
+    execsql {
+      ALTER TABLE aux.t4 RENAME TO t5;
+      SELECT * FROM aux.t5 WHERE b = 'aux';
+    }
+  } {aux aux aux}
+}
+
+do_test alter-1.9.1 {
+  execsql {
+    CREATE TABLE tbl1   (a, b, c);
+    INSERT INTO tbl1 VALUES(1, 2, 3);
+  }
+} {}
+do_test alter-1.9.2 {
+  execsql {
+    SELECT * FROM tbl1;
+  }
+} {1 2 3}
+do_test alter-1.9.3 {
+  execsql {
+    ALTER TABLE tbl1 RENAME TO tbl2;
+    SELECT * FROM tbl2;
+  }
+} {1 2 3}
+do_test alter-1.9.4 {
+  execsql {
+    DROP TABLE tbl2;
+  }
+} {}
+
+# Test error messages
+#
+do_test alter-2.1 {
+  catchsql {
+    ALTER TABLE none RENAME TO hi;
+  }
+} {1 {no such table: none}}
+do_test alter-2.2 {
+  execsql {
+    CREATE TABLE t3(p,q,r);
+  }
+  catchsql {
+    ALTER TABLE [<t2>] RENAME TO t3;
+  }
+} {1 {there is already another table or index with this name: t3}}
+do_test alter-2.3 {
+  catchsql {
+    ALTER TABLE [<t2>] RENAME TO i3;
+  }
+} {1 {there is already another table or index with this name: i3}}
+do_test alter-2.4 {
+  catchsql {
+    ALTER TABLE SqLiTe_master RENAME TO master;
+  }
+} {1 {table sqlite_master may not be altered}}
+do_test alter-2.5 {
+  catchsql {
+    ALTER TABLE t3 RENAME TO sqlite_t3;
+  }
+} {1 {object name reserved for internal use: sqlite_t3}}
+do_test alter-2.6 {
+  catchsql {
+    ALTER TABLE t3 ADD COLUMN (ALTER TABLE t3 ADD COLUMN);
+  }
+} {1 {near "(": syntax error}}
+
+# If this compilation does not include triggers, omit the alter-3.* tests.
+ifcapable trigger {
+
+#-----------------------------------------------------------------------
+# Tests alter-3.* test ALTER TABLE on tables that have triggers.
+#
+# alter-3.1.*: ALTER TABLE with triggers.
+# alter-3.2.*: Test that the ON keyword cannot be used as a database,
+#     table or column name unquoted. This is done because part of the
+#     ALTER TABLE code (specifically the implementation of SQL function
+#     "sqlite_alter_trigger") will break in this case.
+# alter-3.3.*: ALTER TABLE with TEMP triggers (todo).
+#
+
+# An SQL user-function for triggers to fire, so that we know they
+# are working.
+proc trigfunc {args} {
+  set ::TRIGGER $args
+}
+db func trigfunc trigfunc
+
+do_test alter-3.1.0 {
+  execsql {
+    CREATE TABLE t6(a, b, c);
+    -- Different case for the table name in the trigger.
+    CREATE TRIGGER trig1 AFTER INSERT ON T6 BEGIN
+      SELECT trigfunc('trig1', new.a, new.b, new.c);
+    END;
+  }
+} {}
+do_test alter-3.1.1 {
+  execsql {
+    INSERT INTO t6 VALUES(1, 2, 3);
+  }
+  set ::TRIGGER
+} {trig1 1 2 3}
+do_test alter-3.1.2 {
+  execsql {
+    ALTER TABLE t6 RENAME TO t7;
+    INSERT INTO t7 VALUES(4, 5, 6);
+  }
+  set ::TRIGGER
+} {trig1 4 5 6}
+do_test alter-3.1.3 {
+  execsql {
+    DROP TRIGGER trig1;
+  }
+} {}
+do_test alter-3.1.4 {
+  execsql {
+    CREATE TRIGGER trig2 AFTER INSERT ON main.t7 BEGIN
+      SELECT trigfunc('trig2', new.a, new.b, new.c);
+    END;
+    INSERT INTO t7 VALUES(1, 2, 3);
+  }
+  set ::TRIGGER
+} {trig2 1 2 3}
+do_test alter-3.1.5 {
+  execsql {
+    ALTER TABLE t7 RENAME TO t8;
+    INSERT INTO t8 VALUES(4, 5, 6);
+  }
+  set ::TRIGGER
+} {trig2 4 5 6}
+do_test alter-3.1.6 {
+  execsql {
+    DROP TRIGGER trig2;
+  }
+} {}
+do_test alter-3.1.7 {
+  execsql {
+    CREATE TRIGGER trig3 AFTER INSERT ON main.'t8'BEGIN
+      SELECT trigfunc('trig3', new.a, new.b, new.c);
+    END;
+    INSERT INTO t8 VALUES(1, 2, 3);
+  }
+  set ::TRIGGER
+} {trig3 1 2 3}
+do_test alter-3.1.8 {
+  execsql {
+    ALTER TABLE t8 RENAME TO t9;
+    INSERT INTO t9 VALUES(4, 5, 6);
+  }
+  set ::TRIGGER
+} {trig3 4 5 6}
+
+# Make sure "ON" cannot be used as a database, table or column name without
+# quoting. Otherwise the sqlite_alter_trigger() function might not work.
+forcedelete test3.db
+forcedelete test3.db-journal
+ifcapable attach {
+  do_test alter-3.2.1 {
+    catchsql {
+      ATTACH 'test3.db' AS ON;
+    }
+  } {1 {near "ON": syntax error}}
+  do_test alter-3.2.2 {
+    catchsql {
+      ATTACH 'test3.db' AS 'ON';
+    }
+  } {0 {}}
+  do_test alter-3.2.3 {
+    catchsql {
+      CREATE TABLE ON.t1(a, b, c); 
+    }
+  } {1 {near "ON": syntax error}}
+  do_test alter-3.2.4 {
+    catchsql {
+      CREATE TABLE 'ON'.t1(a, b, c); 
+    }
+  } {0 {}}
+  do_test alter-3.2.4 {
+    catchsql {
+      CREATE TABLE 'ON'.ON(a, b, c); 
+    }
+  } {1 {near "ON": syntax error}}
+  do_test alter-3.2.5 {
+    catchsql {
+      CREATE TABLE 'ON'.'ON'(a, b, c); 
+    }
+  } {0 {}}
+}
+do_test alter-3.2.6 {
+  catchsql {
+    CREATE TABLE t10(a, ON, c);
+  }
+} {1 {near "ON": syntax error}}
+do_test alter-3.2.7 {
+  catchsql {
+    CREATE TABLE t10(a, 'ON', c);
+  }
+} {0 {}}
+do_test alter-3.2.8 {
+  catchsql {
+    CREATE TRIGGER trig4 AFTER INSERT ON ON BEGIN SELECT 1; END;
+  }
+} {1 {near "ON": syntax error}}
+ifcapable attach {
+  do_test alter-3.2.9 {
+    catchsql {
+      CREATE TRIGGER 'on'.trig4 AFTER INSERT ON 'ON' BEGIN SELECT 1; END;
+    }
+  } {0 {}}
+}
+do_test alter-3.2.10 {
+  execsql {
+    DROP TABLE t10;
+  }
+} {}
+
+do_test alter-3.3.1 {
+  execsql [subst {
+    CREATE TABLE tbl1(a, b, c);
+    CREATE $::temp TRIGGER trig1 AFTER INSERT ON tbl1 BEGIN
+      SELECT trigfunc('trig1', new.a, new.b, new.c);
+    END;
+  }]
+} {}
+do_test alter-3.3.2 {
+  execsql {
+    INSERT INTO tbl1 VALUES('a', 'b', 'c');
+  }
+  set ::TRIGGER
+} {trig1 a b c}
+do_test alter-3.3.3 {
+  execsql {
+    ALTER TABLE tbl1 RENAME TO tbl2;
+    INSERT INTO tbl2 VALUES('d', 'e', 'f');
+  } 
+  set ::TRIGGER
+} {trig1 d e f}
+do_test alter-3.3.4 {
+  execsql [subst {
+    CREATE $::temp TRIGGER trig2 AFTER UPDATE ON tbl2 BEGIN
+      SELECT trigfunc('trig2', new.a, new.b, new.c);
+    END;
+  }] 
+} {}
+do_test alter-3.3.5 {
+  execsql {
+    ALTER TABLE tbl2 RENAME TO tbl3;
+    INSERT INTO tbl3 VALUES('g', 'h', 'i');
+  } 
+  set ::TRIGGER
+} {trig1 g h i}
+do_test alter-3.3.6 {
+  execsql {
+    UPDATE tbl3 SET a = 'G' where a = 'g';
+  } 
+  set ::TRIGGER
+} {trig2 G h i}
+do_test alter-3.3.7 {
+  execsql {
+    DROP TABLE tbl3;
+  }
+} {}
+ifcapable tempdb {
+  do_test alter-3.3.8 {
+    execsql {
+      SELECT * FROM temp.sqlite_master WHERE type = 'trigger';
+    }
+  } {}
+}
+
+} ;# ifcapable trigger
+
+# If the build does not include AUTOINCREMENT fields, omit alter-4.*.
+ifcapable autoinc {
+
+do_test alter-4.1 {
+  execsql {
+    CREATE TABLE tbl1(a INTEGER PRIMARY KEY AUTOINCREMENT);
+    INSERT INTO tbl1 VALUES(10);
+  }
+} {}
+do_test alter-4.2 {
+  execsql {
+    INSERT INTO tbl1 VALUES(NULL);
+    SELECT a FROM tbl1;
+  }
+} {10 11}
+do_test alter-4.3 {
+  execsql {
+    ALTER TABLE tbl1 RENAME TO tbl2;
+    DELETE FROM tbl2;
+    INSERT INTO tbl2 VALUES(NULL);
+    SELECT a FROM tbl2;
+  }
+} {12}
+do_test alter-4.4 {
+  execsql {
+    DROP TABLE tbl2;
+  }
+} {}
+
+} ;# ifcapable autoinc
+
+# Test that it is Ok to execute an ALTER TABLE immediately after
+# opening a database.
+do_test alter-5.1 {
+  execsql {
+    CREATE TABLE tbl1(a, b, c);
+    INSERT INTO tbl1 VALUES('x', 'y', 'z');
+  }
+} {}
+do_test alter-5.2 {
+  sqlite3 db2 test.db
+  execsql {
+    ALTER TABLE tbl1 RENAME TO tbl2;
+    SELECT * FROM tbl2;
+  } db2
+} {x y z}
+do_test alter-5.3 {
+  db2 close
+} {}
+
+foreach tblname [execsql {
+  SELECT name FROM sqlite_master
+   WHERE type='table' AND name NOT GLOB 'sqlite*'
+}] {
+  execsql "DROP TABLE \"$tblname\""
+}
+
+set ::tbl_name "abc\uABCDdef"
+do_test alter-6.1 {
+  string length $::tbl_name
+} {7}
+do_test alter-6.2 {
+  execsql "
+    CREATE TABLE ${tbl_name}(a, b, c);
+  "
+  set ::oid [execsql {SELECT max(oid) FROM sqlite_master}]
+  execsql "
+    SELECT sql FROM sqlite_master WHERE oid = $::oid;
+  "
+} "{CREATE TABLE ${::tbl_name}(a, b, c)}"
+execsql "
+  SELECT * FROM ${::tbl_name}
+"
+set ::tbl_name2 "abcXdef"
+do_test alter-6.3 {
+  execsql "
+    ALTER TABLE $::tbl_name RENAME TO $::tbl_name2 
+  "
+  execsql "
+    SELECT sql FROM sqlite_master WHERE oid = $::oid
+  "
+} "{CREATE TABLE \"${::tbl_name2}\"(a, b, c)}"
+do_test alter-6.4 {
+  execsql "
+    ALTER TABLE $::tbl_name2 RENAME TO $::tbl_name
+  "
+  execsql "
+    SELECT sql FROM sqlite_master WHERE oid = $::oid
+  "
+} "{CREATE TABLE \"${::tbl_name}\"(a, b, c)}"
+set ::col_name ghi\1234\jkl
+do_test alter-6.5 {
+  execsql "
+    ALTER TABLE $::tbl_name ADD COLUMN $::col_name VARCHAR
+  "
+  execsql "
+    SELECT sql FROM sqlite_master WHERE oid = $::oid
+  "
+} "{CREATE TABLE \"${::tbl_name}\"(a, b, c, $::col_name VARCHAR)}"
+set ::col_name2 B\3421\A
+do_test alter-6.6 {
+  db close
+  sqlite3 db test.db
+  execsql "
+    ALTER TABLE $::tbl_name ADD COLUMN $::col_name2
+  "
+  execsql "
+    SELECT sql FROM sqlite_master WHERE oid = $::oid
+  "
+} "{CREATE TABLE \"${::tbl_name}\"(a, b, c, $::col_name VARCHAR, $::col_name2)}"
+do_test alter-6.7 {
+  execsql "
+    INSERT INTO ${::tbl_name} VALUES(1, 2, 3, 4, 5);
+    SELECT $::col_name, $::col_name2 FROM $::tbl_name;
+  "
+} {4 5}
+
+# Ticket #1665:  Make sure ALTER TABLE ADD COLUMN works on a table
+# that includes a COLLATE clause.
+#
+do_realnum_test alter-7.1 {
+  execsql {
+    CREATE TABLE t1(a TEXT COLLATE BINARY);
+    ALTER TABLE t1 ADD COLUMN b INTEGER COLLATE NOCASE;
+    INSERT INTO t1 VALUES(1,'-2');
+    INSERT INTO t1 VALUES(5.4e-08,'5.4e-08');
+    SELECT typeof(a), a, typeof(b), b FROM t1;
+  }
+} {text 1 integer -2 text 5.4e-08 real 5.4e-08}
+
+# Make sure that when a column is added by ALTER TABLE ADD COLUMN and has
+# a default value that the default value is used by aggregate functions.
+#
+do_test alter-8.1 {
+  execsql {
+    CREATE TABLE t2(a INTEGER);
+    INSERT INTO t2 VALUES(1);
+    INSERT INTO t2 VALUES(1);
+    INSERT INTO t2 VALUES(2);
+    ALTER TABLE t2 ADD COLUMN b INTEGER DEFAULT 9;
+    SELECT sum(b) FROM t2;
+  }
+} {27}
+do_test alter-8.2 {
+  execsql {
+    SELECT a, sum(b) FROM t2 GROUP BY a;
+  }
+} {1 18 2 9}
+
+#--------------------------------------------------------------------------
+# alter-9.X - Special test: Make sure the sqlite_rename_column() and
+# rename_table() functions do not crash when handed bad input.
+#
+sqlite3_test_control SQLITE_TESTCTRL_INTERNAL_FUNCTIONS db
+do_test alter-9.1 {
+  execsql {SELECT SQLITE_RENAME_COLUMN(0,0,0,0,0,0,0,0,0)}
+} {{}}
+foreach {tn sql} {
+    1 { SELECT SQLITE_RENAME_TABLE(0,0,0,0,0,0,0) }
+    2 { SELECT SQLITE_RENAME_TABLE(10,20,30,40,50,60,70) }
+    3 { SELECT SQLITE_RENAME_TABLE('foo','foo','foo','foo','foo','foo','foo') }
+} {
+  do_test alter-9.2.$tn {
+    catch { execsql $sql }
+  } 1
+}
+sqlite3_test_control SQLITE_TESTCTRL_INTERNAL_FUNCTIONS db
+
+# If the INTERNAL_FUNCTIONS test-control is disabled (which is the default),
+# then the sqlite_rename_table() SQL function is not accessible to ordinary SQL.
+#
+do_catchsql_test alter-9.3 {
+  SELECT sqlite_rename_table(0,0,0,0,0,0,0);
+} {1 {no such function: sqlite_rename_table}}
+
+#------------------------------------------------------------------------
+# alter-10.X - Make sure ALTER TABLE works with multi-byte UTF-8 characters 
+# in the names.
+#
+do_test alter-10.1 {
+  execsql "CREATE TABLE xyz(x UNIQUE)"
+  execsql "ALTER TABLE xyz RENAME TO xyz\u1234abc"
+  execsql {SELECT name FROM sqlite_master WHERE name GLOB 'xyz*'}
+} [list xyz\u1234abc]
+do_test alter-10.2 {
+  execsql {SELECT name FROM sqlite_master WHERE name GLOB 'sqlite_autoindex*'}
+} [list sqlite_autoindex_xyz\u1234abc_1]
+do_test alter-10.3 {
+  execsql "ALTER TABLE xyz\u1234abc RENAME TO xyzabc"
+  execsql {SELECT name FROM sqlite_master WHERE name GLOB 'xyz*'}
+} [list xyzabc]
+do_test alter-10.4 {
+  execsql {SELECT name FROM sqlite_master WHERE name GLOB 'sqlite_autoindex*'}
+} [list sqlite_autoindex_xyzabc_1]
+
+do_test alter-11.1 {
+  sqlite3_exec db {CREATE TABLE t11(%c6%c6)}
+  execsql {
+    ALTER TABLE t11 ADD COLUMN abc;
+  }
+  catchsql {
+    ALTER TABLE t11 ADD COLUMN abc;
+  }
+} {1 {duplicate column name: abc}}
+set isutf16 [regexp 16 [db one {PRAGMA encoding}]]
+if {!$isutf16} {
+  do_test alter-11.2 {
+    execsql {INSERT INTO t11 VALUES(1,2)}
+    sqlite3_exec db {SELECT %c6%c6 AS xyz, abc FROM t11}
+  } {0 {xyz abc 1 2}}
+}
+do_test alter-11.3 {
+  sqlite3_exec db {CREATE TABLE t11b("%81%82%83" text)}
+  execsql {
+    ALTER TABLE t11b ADD COLUMN abc;
+  }
+  catchsql {
+    ALTER TABLE t11b ADD COLUMN abc;
+  }
+} {1 {duplicate column name: abc}}
+if {!$isutf16} {
+  do_test alter-11.4 {
+    execsql {INSERT INTO t11b VALUES(3,4)}
+    sqlite3_exec db {SELECT %81%82%83 AS xyz, abc FROM t11b}
+  } {0 {xyz abc 3 4}}
+  do_test alter-11.5 {
+    sqlite3_exec db {SELECT [%81%82%83] AS xyz, abc FROM t11b}
+  } {0 {xyz abc 3 4}}
+  do_test alter-11.6 {
+    sqlite3_exec db {SELECT "%81%82%83" AS xyz, abc FROM t11b}
+  } {0 {xyz abc 3 4}}
+}
+do_test alter-11.7 {
+  sqlite3_exec db {CREATE TABLE t11c(%81%82%83 text)}
+  execsql {
+    ALTER TABLE t11c ADD COLUMN abc;
+  }
+  catchsql {
+    ALTER TABLE t11c ADD COLUMN abc;
+  }
+} {1 {duplicate column name: abc}}
+if {!$isutf16} {
+  do_test alter-11.8 {
+    execsql {INSERT INTO t11c VALUES(5,6)}
+    sqlite3_exec db {SELECT %81%82%83 AS xyz, abc FROM t11c}
+  } {0 {xyz abc 5 6}}
+  do_test alter-11.9 {
+    sqlite3_exec db {SELECT [%81%82%83] AS xyz, abc FROM t11c}
+  } {0 {xyz abc 5 6}}
+  do_test alter-11.10 {
+    sqlite3_exec db {SELECT "%81%82%83" AS xyz, abc FROM t11c}
+  } {0 {xyz abc 5 6}}
+}
+
+do_test alter-12.1 {
+  execsql {
+    CREATE TABLE t12(a, b, c);
+    CREATE VIEW v1 AS SELECT * FROM t12;
+  }
+} {}
+do_test alter-12.2 {
+  catchsql {
+    ALTER TABLE v1 RENAME TO v2;
+  }
+} {1 {view v1 may not be altered}}
+do_test alter-12.3 {
+  execsql { SELECT * FROM v1; }
+} {}
+do_test alter-12.4 {
+  db close
+  sqlite3 db test.db
+  execsql { SELECT * FROM v1; }
+} {}
+do_test alter-12.5 {
+  catchsql { 
+    ALTER TABLE v1 ADD COLUMN new_column;
+  }
+} {1 {Cannot add a column to a view}}
+
+# Ticket #3102:
+# Verify that comments do not interfere with the table rename
+# algorithm.
+#
+do_test alter-13.1 {
+  execsql {
+    CREATE TABLE /* hi */ t3102a(x);
+    CREATE TABLE t3102b -- comment
+    (y);
+    CREATE INDEX t3102c ON t3102a(x);
+    SELECT name FROM sqlite_master WHERE name GLOB 't3102*' ORDER BY 1;
+  }
+} {t3102a t3102b t3102c}
+do_test alter-13.2 {
+  execsql {
+    ALTER TABLE t3102a RENAME TO t3102a_rename;
+    SELECT name FROM sqlite_master WHERE name GLOB 't3102*' ORDER BY 1;
+  }
+} {t3102a_rename t3102b t3102c}
+do_test alter-13.3 {
+  execsql {
+    ALTER TABLE t3102b RENAME TO t3102b_rename;
+    SELECT name FROM sqlite_master WHERE name GLOB 't3102*' ORDER BY 1;
+  }
+} {t3102a_rename t3102b_rename t3102c}
+
+# Ticket #3651
+do_test alter-14.1 {
+  catchsql {
+    CREATE TABLE t3651(a UNIQUE);
+    INSERT INTO t3651 VALUES(5);
+    ALTER TABLE t3651 ADD COLUMN b UNIQUE;
+  }
+} {1 {Cannot add a UNIQUE column}}
+do_test alter-14.2 {
+  catchsql {
+    ALTER TABLE t3651 ADD COLUMN b PRIMARY KEY;
+  }
+} {1 {Cannot add a PRIMARY KEY column}}
+
+
+#-------------------------------------------------------------------------
+# Test that it is not possible to use ALTER TABLE on any system table.
+#
+set system_table_list {1 sqlite_master}
+catchsql ANALYZE
+ifcapable analyze { lappend system_table_list 2 sqlite_stat1 }
+ifcapable stat4   { lappend system_table_list 4 sqlite_stat4 }
+
+foreach {tn tbl} $system_table_list {
+  do_test alter-15.$tn.1 {
+    catchsql "ALTER TABLE $tbl RENAME TO xyz"
+  } [list 1 "table $tbl may not be altered"]
+
+  do_test alter-15.$tn.2 {
+    catchsql "ALTER TABLE $tbl ADD COLUMN xyz"
+  } [list 1 "table $tbl may not be altered"]
+}
+
+#------------------------------------------------------------------------
+# Verify that ALTER TABLE works on tables with the WITHOUT rowid option.
+#
+do_execsql_test alter-16.1 {
+  CREATE TABLE t16a(a TEXT, b REAL, c INT, PRIMARY KEY(a,b)) WITHOUT rowid;
+  INSERT INTO t16a VALUES('abc',1.25,99);
+  ALTER TABLE t16a ADD COLUMN d TEXT DEFAULT 'xyzzy';
+  INSERT INTO t16a VALUES('cba',5.5,98,'fizzle');
+  SELECT * FROM t16a ORDER BY a;
+} {abc 1.25 99 xyzzy cba 5.5 98 fizzle}
+do_execsql_test alter-16.2 {
+  ALTER TABLE t16a RENAME TO t16a_rn;
+  SELECT * FROM t16a_rn ORDER BY a;
+} {abc 1.25 99 xyzzy cba 5.5 98 fizzle}
+
+# 2018-09-16 ticket b41031ea2b5372378cb3d2d43cf9fe2a4a5c2510
+#
+ifcapable rtree {
+  db close
+  sqlite3 db :memory:
+  do_execsql_test alter-17.100 {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+    CREATE VIRTUAL TABLE t2 USING rtree(id,x0,x1);
+    INSERT INTO t1 VALUES(1,'apple'),(2,'fig'),(3,'pear');
+    INSERT INTO t2 VALUES(1,1.0,2.0),(2,2.0,3.0),(3,1.5,3.5);
+    CREATE TRIGGER r1 AFTER UPDATE ON t1 BEGIN
+      DELETE FROM t2 WHERE id = OLD.a;
+    END;
+    ALTER TABLE t1 RENAME TO t3;
+    UPDATE t3 SET b='peach' WHERE a=2;
+    SELECT * FROM t2 ORDER BY 1;
+  } {1 1.0 2.0 3 1.5 3.5}
+}
+
+# 2021-03-08 dbsqlfuzz 3f0a7245b69cd08617d7d7781ebaedb0fe765a93
+reset_db
+do_catchsql_test alter-18.1 {
+  CREATE TABLE t1(a,b,c);
+  CREATE TABLE log(a INTEGER PRIMARY KEY,b,c);
+  CREATE TRIGGER tr1 AFTER INSERT ON t1 BEGIN
+    INSERT INTO logx(a,b,c) VALUES(new.a,new.b,new.c)
+    ON CONFLICT(a) DO UPDATE SET c=excluded.c, b=new.b;
+  END;
+  ALTER TABLE log RENAME COLUMN a TO x;
+} {1 {error in trigger tr1: no such table: main.logx}}
+
+# 2021-10-13 dbsqlfuzz e89174cbfad2d904f06b5e24df0a22510b6a1c1e
+reset_db
+do_execsql_test alter-19.1 {
+  CREATE TABLE t1(x);
+  CREATE TABLE t2(c);
+  CREATE TRIGGER r1 AFTER INSERT ON t2 BEGIN
+    UPDATE t2 SET (c)=(
+       EXISTS(SELECT 1 WHERE (WITH cte1(a) AS (SELECT 1 FROM t1 WHERE (SELECT 1 WHERE (WITH cte2(b) AS (VALUES(1))SELECT b FROM cte2)))SELECT a FROM cte1))
+    );
+  END;
+  ALTER TABLE t2 RENAME TO t3;
+} {}
+do_execsql_test alter-19.2 {
+  SELECT name FROM sqlite_schema WHERE sql LIKE '%t2%';
+} {}
+do_execsql_test alter-19.3 {
+  SELECT name FROM sqlite_schema WHERE sql LIKE '%t3%' ORDER BY name;
+} {r1 t3}
+
+# 2023-10-14
+# On an ALTER TABLE ADD COLUMN with a DEFAULT clause on a STRICT table
+# make sure that the DEFAULT has a compatible type.
+#
+reset_db
+do_execsql_test alter-20.1 {
+  CREATE TABLE t1(a INT) STRICT;
+  INSERT INTO t1(a) VALUES(45);
+} {}
+do_catchsql_test alter-20.2 {
+  ALTER TABLE t1 ADD COLUMN b TEXT DEFAULT x'313233';
+} {1 {type mismatch on DEFAULT}}
+do_execsql_test alter-20.2 {
+  DELETE FROM t1;
+  ALTER TABLE t1 ADD COLUMN b TEXT DEFAULT x'313233';
+} {}
+do_catchsql_test alter-20.3 {
+  INSERT INTO t1(a) VALUES(45);
+} {1 {cannot store BLOB value in TEXT column t1.b}}
+
+# 2023-11-17 dbsqlfuzz e0900262dadd5c78c2226ad6a435c7f0255be2cd
+# Assertion fault associated with ALTER TABLE and an
+# aggregate ORDER BY within an unknown aggregate function.
+#
+reset_db
+do_execsql_test alter-21.1 {
+  CREATE TABLE t1(a,b,c,d);
+  CREATE TABLE t2(a,b,c,d,x);
+  CREATE TRIGGER r1 AFTER INSERT ON t2 BEGIN
+    SELECT unknown_function(a ORDER BY (SELECT group_concat(DISTINCT a ORDER BY a) FROM t1)) FROM t1;
+  END;
+  ALTER TABLE t2 RENAME TO e;
+} {}
+do_execsql_test alter-21.2 {
+  SELECT name, type FROM sqlite_schema ORDER BY name;
+} {e table r1 trigger t1 table}
+do_execsql_test alter-21.3 {
+  DROP TRIGGER r1;
+  CREATE TRIGGER r2 AFTER INSERT ON e BEGIN
+    SELECT unknown_function(a ORDER BY (SELECT group_concat(a ORDER BY a) FROM (SELECT b FROM t1))) FROM t1;
+  END;
+  ALTER TABLE e RENAME TO t99;
+}
+do_execsql_test alter-21.4 {
+  SELECT name, type FROM sqlite_schema ORDER BY name;
+} {r2 trigger t1 table t99 table}
+
+
+
+finish_test
diff --git a/test/alter2.test b/test/alter2.test
new file mode 100644
index 0000000000000000000000000000000000000000..20b75b59ee52e2e3e4ea8cd2c93a186561e89c1f
--- /dev/null
+++ b/test/alter2.test
@@ -0,0 +1,470 @@
+# 2005 February 18
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing that SQLite can handle a subtle 
+# file format change that may be used in the future to implement
+# "ALTER TABLE ... ADD COLUMN".
+#
+# $Id: alter2.test,v 1.14 2009/04/07 14:14:22 danielk1977 Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# We have to have pragmas in order to do this test
+ifcapable {!pragma} return
+
+# Do not use a codec for tests in this file, as the database file is
+# manipulated directly using tcl scripts. See proc [set_file_format].
+#
+do_not_use_codec
+
+# The file format change affects the way row-records stored in tables (but 
+# not indices) are interpreted. Before version 3.1.3, a row-record for a 
+# table with N columns was guaranteed to contain exactly N fields. As
+# of version 3.1.3, the record may contain up to N fields. In this case
+# the M fields that are present are the values for the left-most M 
+# columns. The (N-M) rightmost columns contain NULL.
+#
+# If any records in the database contain less fields than their table
+# has columns, then the file-format meta value should be set to (at least) 2. 
+#
+
+# This procedure sets the value of the file-format in file 'test.db'
+# to $newval. Also, the schema cookie is incremented.
+# 
+proc set_file_format {newval} {
+  hexio_write test.db 44 [hexio_render_int32 $newval]
+  set schemacookie [hexio_get_int [hexio_read test.db 40 4]]
+  incr schemacookie
+  hexio_write test.db 40 [hexio_render_int32 $schemacookie]
+  return {}
+}
+
+# This procedure returns the value of the file-format in file 'test.db'.
+# 
+proc get_file_format {{fname test.db}} {
+  return [hexio_get_int [hexio_read $fname 44 4]]
+}
+
+# This procedure sets the SQL statement stored for table $tbl in the
+# sqlite_master table of file 'test.db' to $sql. Also set the file format
+# to the supplied value. This is 2 if the added column has a default that is
+# NULL, or 3 otherwise. 
+#
+proc alter_table {tbl sql {file_format 2}} {
+  sqlite3 dbat test.db
+  set s [string map {' ''} $sql]
+  set t [string map {' ''} $tbl]
+  sqlite3_db_config dbat DEFENSIVE 0
+  dbat eval [subst {
+    PRAGMA writable_schema = 1;
+    UPDATE sqlite_master SET sql = '$s' WHERE name = '$t' AND type = 'table';
+    PRAGMA writable_schema = 0;
+  }]
+  dbat close
+  set_file_format 2
+}
+
+# Create bogus application-defined functions for functions used 
+# internally by ALTER TABLE, to ensure that ALTER TABLE falls back
+# to the built-in functions.
+#
+proc failing_app_func {args} {error "bad function"}
+do_test alter2-1.0 {
+  db func substr failing_app_func
+  db func like failing_app_func
+  db func sqlite_rename_table failing_app_func
+  db func sqlite_rename_trigger failing_app_func
+  db func sqlite_rename_parent failing_app_func
+  catchsql {SELECT substr('abcdefg',1,3)}
+} {1 {bad function}}
+
+
+#-----------------------------------------------------------------------
+# Some basic tests to make sure short rows are handled.
+#
+sqlite3_db_config db DEFENSIVE 0
+do_test alter2-1.1 {
+  execsql {
+    CREATE TABLE abc(a, b);
+    INSERT INTO abc VALUES(1, 2);
+    INSERT INTO abc VALUES(3, 4);
+    INSERT INTO abc VALUES(5, 6);
+  }
+} {}
+do_test alter2-1.2 {
+  # ALTER TABLE abc ADD COLUMN c;
+  alter_table abc {CREATE TABLE abc(a, b, c);}
+} {}
+do_test alter2-1.3 {
+  execsql {
+    SELECT * FROM abc;
+  }
+} {1 2 {} 3 4 {} 5 6 {}}
+do_test alter2-1.4 {
+  execsql {
+    UPDATE abc SET c = 10 WHERE a = 1;
+    SELECT * FROM abc;
+  }
+} {1 2 10 3 4 {} 5 6 {}}
+do_test alter2-1.5 {
+  execsql {
+    CREATE INDEX abc_i ON abc(c);
+  }
+} {}
+do_test alter2-1.6 {
+  execsql {
+    SELECT c FROM abc ORDER BY c;
+  }
+} {{} {} 10}
+do_test alter2-1.7 {
+  execsql {
+    SELECT * FROM abc WHERE c = 10;
+  }
+} {1 2 10}
+do_test alter2-1.8 {
+  execsql {
+    SELECT sum(a), c FROM abc GROUP BY c;
+  }
+} {8 {} 1 10}
+do_test alter2-1.9 {
+  # ALTER TABLE abc ADD COLUMN d;
+  alter_table abc {CREATE TABLE abc(a, b, c, d);}
+  if {[permutation] == "prepare"} { db cache flush }
+  execsql { SELECT * FROM abc; }
+  execsql {
+    UPDATE abc SET d = 11 WHERE c IS NULL AND a<4;
+    SELECT * FROM abc;
+  }
+} {1 2 10 {} 3 4 {} 11 5 6 {} {}}
+do_test alter2-1.10 {
+  execsql {
+    SELECT typeof(d) FROM abc;
+  }
+} {null integer null}
+do_test alter2-1.99 {
+  execsql {
+    DROP TABLE abc;
+  }
+} {}
+
+#-----------------------------------------------------------------------
+# Test that views work when the underlying table structure is changed.
+#
+ifcapable view {
+  do_test alter2-2.1 {
+    execsql {
+      CREATE TABLE abc2(a, b, c);
+      INSERT INTO abc2 VALUES(1, 2, 10);
+      INSERT INTO abc2 VALUES(3, 4, NULL);
+      INSERT INTO abc2 VALUES(5, 6, NULL);
+      CREATE VIEW abc2_v AS SELECT * FROM abc2;
+      SELECT * FROM abc2_v;
+    }
+  } {1 2 10 3 4 {} 5 6 {}}
+  do_test alter2-2.2 {
+    # ALTER TABLE abc ADD COLUMN d;
+    alter_table abc2 {CREATE TABLE abc2(a, b, c, d);}
+    execsql {
+      SELECT * FROM abc2_v;
+    }
+  } {1 2 10 {} 3 4 {} {} 5 6 {} {}}
+  do_test alter2-2.3 {
+    execsql {
+      DROP TABLE abc2;
+      DROP VIEW abc2_v;
+    }
+  } {}
+}
+
+#-----------------------------------------------------------------------
+# Test that triggers work when a short row is copied to the old.*
+# trigger pseudo-table.
+#
+ifcapable trigger {
+  do_test alter2-3.1 {
+    execsql {
+      CREATE TABLE abc3(a, b);
+      CREATE TABLE blog(o, n);
+      CREATE TRIGGER abc3_t AFTER UPDATE OF b ON abc3 BEGIN
+        INSERT INTO blog VALUES(old.b, new.b);
+      END;
+    }
+  } {}
+  do_test alter2-3.2 {
+    execsql {
+      INSERT INTO abc3 VALUES(1, 4);
+      UPDATE abc3 SET b = 2 WHERE b = 4;
+      SELECT * FROM blog;
+    }
+  } {4 2}
+  do_test alter2-3.3 {
+    execsql {
+      INSERT INTO abc3 VALUES(3, 4);
+      INSERT INTO abc3 VALUES(5, 6);
+    }
+    alter_table abc3 {CREATE TABLE abc3(a, b, c);}
+    execsql {
+      SELECT * FROM abc3;
+    }
+  } {1 2 {} 3 4 {} 5 6 {}}
+  do_test alter2-3.4 {
+    execsql {
+      UPDATE abc3 SET b = b*2 WHERE a<4;
+      SELECT * FROM abc3;
+    }
+  } {1 4 {} 3 8 {} 5 6 {}}
+  do_test alter2-3.5 {
+    execsql {
+      SELECT * FROM blog;
+    }
+  } {4 2 2 4 4 8}
+
+  do_test alter2-3.6 {
+    execsql {
+      CREATE TABLE clog(o, n);
+      CREATE TRIGGER abc3_t2 AFTER UPDATE OF c ON abc3 BEGIN
+        INSERT INTO clog VALUES(old.c, new.c);
+      END;
+      UPDATE abc3 SET c = a*2;
+      SELECT * FROM clog;
+    }
+  } {{} 2 {} 6 {} 10}
+} else {
+  execsql { CREATE TABLE abc3(a, b); }
+}
+
+#---------------------------------------------------------------------
+# Check that an error occurs if the database is upgraded to a file
+# format that SQLite does not support (in this case 5). Note: The 
+# file format is checked each time the schema is read, so changing the
+# file format requires incrementing the schema cookie.
+#
+do_test alter2-4.1 {
+  db close
+  set_file_format 5
+  catch { sqlite3 db test.db }
+  set {} {}
+} {}
+do_test alter2-4.2 {
+  # We have to run two queries here because the Tcl interface uses
+  # sqlite3_prepare_v2(). In this case, the first query encounters an 
+  # SQLITE_SCHEMA error. Then, when trying to recompile the statement, the
+  # "unsupported file format" error is encountered. So the error code
+  # returned is SQLITE_SCHEMA, not SQLITE_ERROR as required by the following
+  # test case.
+  #
+  # When the query is attempted a second time, the same error message is
+  # returned but the error code is SQLITE_ERROR, because the unsupported
+  # file format was detected during a call to sqlite3_prepare(), not
+  # sqlite3_step().
+  #
+  catchsql { SELECT * FROM sqlite_master; }
+  catchsql { SELECT * FROM sqlite_master; }
+} {1 {unsupported file format}}
+do_test alter2-4.3 {
+  sqlite3_errcode db
+} {SQLITE_ERROR}
+do_test alter2-4.4 {
+  set ::DB [sqlite3_connection_pointer db]
+  catchsql {
+    SELECT * FROM sqlite_master;
+  }
+} {1 {unsupported file format}}
+do_test alter2-4.5 {
+  sqlite3_errcode db
+} {SQLITE_ERROR}
+
+#---------------------------------------------------------------------
+# Check that executing VACUUM on a file with file-format version 2
+# resets the file format to 1.
+#
+set default_file_format [expr $SQLITE_DEFAULT_FILE_FORMAT==4 ? 4 : 1]
+ifcapable vacuum {
+  do_test alter2-5.1 {
+    set_file_format 2
+    db close
+    sqlite3 db test.db
+    execsql {SELECT 1 FROM sqlite_master LIMIT 1;}
+    get_file_format
+  } {2}
+  do_test alter2-5.2 {
+    execsql { VACUUM }
+  } {}
+  do_test alter2-5.3 {
+    get_file_format
+  } $default_file_format
+}
+ 
+#---------------------------------------------------------------------
+# Test that when a database with file-format 2 is opened, new 
+# databases are still created with file-format 1.
+#
+do_test alter2-6.1 {
+  db close
+  set_file_format 2
+  sqlite3 db test.db
+  get_file_format
+} {2}
+ifcapable attach {
+  do_test alter2-6.2 {
+    forcedelete test2.db-journal
+    forcedelete test2.db
+    execsql {
+      ATTACH 'test2.db' AS aux;
+      CREATE TABLE aux.t1(a, b);
+    }
+    get_file_format test2.db
+  } $default_file_format
+}
+do_test alter2-6.3 {
+  execsql {
+    CREATE TABLE t1(a, b);
+  }
+  get_file_format 
+} {2}
+
+#---------------------------------------------------------------------
+# Test that types and values for columns added with default values 
+# other than NULL work with SELECT statements.
+#
+do_test alter2-7.1 {
+  execsql {
+    DROP TABLE t1;
+    CREATE TABLE t1(a);
+    INSERT INTO t1 VALUES(1);
+    INSERT INTO t1 VALUES(2);
+    INSERT INTO t1 VALUES(3);
+    INSERT INTO t1 VALUES(4);
+    SELECT * FROM t1;
+  }
+} {1 2 3 4}
+do_test alter2-7.2 {
+  set sql {CREATE TABLE t1(a, b DEFAULT '123', c INTEGER DEFAULT '123')}
+  alter_table t1 $sql 3
+  execsql {
+    SELECT * FROM t1 LIMIT 1;
+  }
+} {1 123 123}
+do_test alter2-7.3 {
+  execsql {
+    SELECT a, typeof(a), b, typeof(b), c, typeof(c) FROM t1 LIMIT 1;
+  }
+} {1 integer 123 text 123 integer}
+do_test alter2-7.4 {
+  execsql {
+    SELECT a, typeof(a), b, typeof(b), c, typeof(c) FROM t1 LIMIT 1;
+  }
+} {1 integer 123 text 123 integer}
+do_test alter2-7.5 {
+  set sql {CREATE TABLE t1(a, b DEFAULT -123.0, c VARCHAR(10) default 5)}
+  alter_table t1 $sql 3
+  execsql {
+    SELECT a, typeof(a), b, typeof(b), c, typeof(c) FROM t1 LIMIT 1;
+  }
+} {1 integer -123.0 real 5 text}
+
+#-----------------------------------------------------------------------
+# Test that UPDATE trigger tables work with default values, and that when
+# a row is updated the default values are correctly transfered to the 
+# new row.
+# 
+ifcapable trigger {
+db function set_val {set ::val}
+  do_test alter2-8.1 {
+    execsql {
+      CREATE TRIGGER trig1 BEFORE UPDATE ON t1 BEGIN
+      SELECT set_val(
+          old.b||' '||typeof(old.b)||' '||old.c||' '||typeof(old.c)||' '||
+          new.b||' '||typeof(new.b)||' '||new.c||' '||typeof(new.c) 
+      );
+      END;
+    }
+    list
+  } {}
+}
+do_test alter2-8.2 {
+  execsql {
+    UPDATE t1 SET c = 10 WHERE a = 1;
+    SELECT a, typeof(a), b, typeof(b), c, typeof(c) FROM t1 LIMIT 1;
+  }
+} {1 integer -123.0 real 10 text}
+ifcapable trigger {
+  do_test alter2-8.3 {
+    set ::val
+  } {-123.0 real 5 text -123.0 real 10 text}
+}
+
+#-----------------------------------------------------------------------
+# Test that DELETE trigger tables work with default values, and that when
+# a row is updated the default values are correctly transfered to the 
+# new row.
+# 
+ifcapable trigger {
+  do_test alter2-9.1 {
+    execsql {
+      CREATE TRIGGER trig2 BEFORE DELETE ON t1 BEGIN
+      SELECT set_val(
+          old.b||' '||typeof(old.b)||' '||old.c||' '||typeof(old.c)
+      );
+      END;
+    }
+    list
+  } {}
+  do_test alter2-9.2 {
+    execsql {
+      DELETE FROM t1 WHERE a = 2;
+    }
+    set ::val
+  } {-123.0 real 5 text}
+}
+
+#-----------------------------------------------------------------------
+# Test creating an index on a column added with a default value. 
+#
+ifcapable bloblit {
+  do_test alter2-10.1 {
+    execsql {
+      CREATE TABLE t2(a);
+      INSERT INTO t2 VALUES('a');
+      INSERT INTO t2 VALUES('b');
+      INSERT INTO t2 VALUES('c');
+      INSERT INTO t2 VALUES('d');
+    }
+    alter_table t2 {CREATE TABLE t2(a, b DEFAULT X'ABCD', c DEFAULT NULL);} 3
+    catchsql {
+      SELECT * FROM sqlite_master;
+    }
+    execsql {
+      SELECT quote(a), quote(b), quote(c) FROM t2 LIMIT 1;
+    }
+  } {'a' X'ABCD' NULL}
+  do_test alter2-10.2 {
+    execsql {
+      CREATE INDEX i1 ON t2(b);
+      SELECT a FROM t2 WHERE b = X'ABCD';
+    }
+  } {a b c d}
+  do_test alter2-10.3 {
+    execsql {
+      DELETE FROM t2 WHERE a = 'c';
+      SELECT a FROM t2 WHERE b = X'ABCD';
+    }
+  } {a b d}
+  do_test alter2-10.4 {
+    execsql {
+      SELECT count(b) FROM t2 WHERE b = X'ABCD';
+    }
+  } {3}
+}
+
+finish_test
diff --git a/test/alter3.test b/test/alter3.test
new file mode 100644
index 0000000000000000000000000000000000000000..c6f26b0c50f141b14cca09a275dd85255971199b
--- /dev/null
+++ b/test/alter3.test
@@ -0,0 +1,443 @@
+# 2005 February 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing that SQLite can handle a subtle 
+# file format change that may be used in the future to implement
+# "ALTER TABLE ... ADD COLUMN".
+#
+
+set testdir [file dirname $argv0]
+
+source $testdir/tester.tcl
+
+# If SQLITE_OMIT_ALTERTABLE is defined, omit this file.
+ifcapable !altertable {
+  finish_test
+  return
+}
+
+# Determine if there is a codec available on this test.
+#
+if {[catch {sqlite3 -has-codec} r] || $r} {
+  set has_codec 1
+} else {
+  set has_codec 0
+}
+
+
+# Test Organisation:
+# ------------------
+#
+# alter3-1.*: Test that ALTER TABLE correctly modifies the CREATE TABLE sql.
+# alter3-2.*: Test error messages.
+# alter3-3.*: Test adding columns with default value NULL.
+# alter3-4.*: Test adding columns with default values other than NULL.
+# alter3-5.*: Test adding columns to tables in ATTACHed databases.
+# alter3-6.*: Test that temp triggers are not accidentally dropped.
+# alter3-7.*: Test that VACUUM resets the file-format.
+#
+
+# This procedure returns the value of the file-format in file 'test.db'.
+# 
+proc get_file_format {{fname test.db}} {
+  return [hexio_get_int [hexio_read $fname 44 4]]
+}
+
+do_test alter3-1.1 {
+  sqlite3_db_config db LEGACY_FILE_FORMAT 1
+  execsql {
+    CREATE TABLE abc(a, b, c);
+    SELECT sql FROM sqlite_master;
+  }
+} {{CREATE TABLE abc(a, b, c)}}
+do_test alter3-1.2 {
+  execsql {ALTER TABLE abc ADD d INTEGER;}
+  execsql {
+    SELECT sql FROM sqlite_master;
+  }
+} {{CREATE TABLE abc(a, b, c, d INTEGER)}}
+do_test alter3-1.3 {
+  execsql {ALTER TABLE abc ADD e}
+  execsql {
+    SELECT sql FROM sqlite_master;
+  }
+} {{CREATE TABLE abc(a, b, c, d INTEGER, e)}}
+do_test alter3-1.4 {
+  execsql {
+    CREATE TABLE main.t1(a, b);
+    ALTER TABLE t1 ADD c;
+    SELECT sql FROM sqlite_master WHERE tbl_name = 't1';
+  }
+} {{CREATE TABLE t1(a, b, c)}}
+do_test alter3-1.5 {
+  execsql {
+    ALTER TABLE t1 ADD d CHECK (a>d);
+    SELECT sql FROM sqlite_master WHERE tbl_name = 't1';
+  }
+} {{CREATE TABLE t1(a, b, c, d CHECK (a>d))}}
+ifcapable foreignkey {
+  do_test alter3-1.6 {
+    execsql {
+      CREATE TABLE t2(a, b, UNIQUE(a, b));
+      ALTER TABLE t2 ADD c REFERENCES t1(c)  ;
+      SELECT sql FROM sqlite_master WHERE tbl_name = 't2' AND type = 'table';
+    }
+  } {{CREATE TABLE t2(a, b, c REFERENCES t1(c), UNIQUE(a, b))}}
+}
+do_test alter3-1.7 {
+  execsql {
+    CREATE TABLE t3(a, b, UNIQUE(a, b));
+    ALTER TABLE t3 ADD COLUMN c VARCHAR(10, 20);
+    SELECT sql FROM sqlite_master WHERE tbl_name = 't3' AND type = 'table';
+  }
+} {{CREATE TABLE t3(a, b, c VARCHAR(10, 20), UNIQUE(a, b))}}
+do_test alter3-1.99 {
+  catchsql {
+    # May not exist if foriegn-keys are omitted at compile time.
+    DROP TABLE t2; 
+  }
+  execsql {
+    DROP TABLE abc; 
+    DROP TABLE t1; 
+    DROP TABLE t3; 
+  }
+} {}
+
+do_test alter3-2.1 {
+  execsql {
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1,2);
+  }
+  catchsql {
+    ALTER TABLE t1 ADD c PRIMARY KEY;
+  }
+} {1 {Cannot add a PRIMARY KEY column}}
+do_test alter3-2.2 {
+  catchsql {
+    ALTER TABLE t1 ADD c UNIQUE
+  }
+} {1 {Cannot add a UNIQUE column}}
+do_test alter3-2.3 {
+  catchsql {
+    ALTER TABLE t1 ADD b VARCHAR(10)
+  }
+} {1 {duplicate column name: b}}
+do_test alter3-2.3 {
+  catchsql {
+    ALTER TABLE t1 ADD c NOT NULL;
+  }
+} {1 {Cannot add a NOT NULL column with default value NULL}}
+do_test alter3-2.4 {
+  catchsql {
+    ALTER TABLE t1 ADD c NOT NULL DEFAULT 10;
+  }
+} {0 {}}
+ifcapable view {
+  do_test alter3-2.5 {
+    execsql {
+      CREATE VIEW v1 AS SELECT * FROM t1;
+    }
+    catchsql {
+      alter table v1 add column d;
+    }
+  } {1 {Cannot add a column to a view}}
+}
+do_test alter3-2.6 {
+  catchsql {
+    alter table t1 add column d DEFAULT CURRENT_TIME;
+  }
+} {1 {Cannot add a column with non-constant default}}
+do_test alter3-2.99 {
+  execsql {
+    DROP TABLE t1;
+  }
+} {}
+
+do_test alter3-3.1 {
+  execsql {
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, 100);
+    INSERT INTO t1 VALUES(2, 300);
+    SELECT * FROM t1;
+  }
+} {1 100 2 300}
+do_test alter3-3.1 {
+  execsql {
+    PRAGMA schema_version = 10;
+  }
+} {}
+do_test alter3-3.2 {
+  execsql {
+    ALTER TABLE t1 ADD c;
+    SELECT * FROM t1;
+  }
+} {1 100 {} 2 300 {}}
+if {!$has_codec} {
+  do_test alter3-3.3 {
+    get_file_format
+  } {3}
+}
+ifcapable schema_version {
+  do_test alter3-3.4 {
+    execsql {
+      PRAGMA schema_version;
+    }
+  } {11}
+}
+
+do_test alter3-4.1 {
+  db close
+  forcedelete test.db
+  set ::DB [sqlite3 db test.db]
+  sqlite3_db_config db LEGACY_FILE_FORMAT 1
+  execsql {
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, 100);
+    INSERT INTO t1 VALUES(2, 300);
+    SELECT * FROM t1;
+  }
+} {1 100 2 300}
+do_test alter3-4.1 {
+  execsql {
+    PRAGMA schema_version = 20;
+  }
+} {}
+do_test alter3-4.2 {
+  execsql {
+    ALTER TABLE t1 ADD c DEFAULT 'hello world';
+    SELECT * FROM t1;
+  }
+} {1 100 {hello world} 2 300 {hello world}}
+if {!$has_codec} {
+  do_test alter3-4.3 {
+    get_file_format
+  } {3}
+}
+ifcapable schema_version {
+  do_test alter3-4.4 {
+    execsql {
+      PRAGMA schema_version;
+    }
+  } {21}
+}
+do_test alter3-4.99 {
+  execsql {
+    DROP TABLE t1;
+  }
+} {}
+
+ifcapable attach {
+  do_test alter3-5.1 {
+    forcedelete test2.db
+    forcedelete test2.db-journal
+    execsql {
+      CREATE TABLE t1(a, b);
+      INSERT INTO t1 VALUES(1, 'one');
+      INSERT INTO t1 VALUES(2, 'two');
+      ATTACH 'test2.db' AS aux;
+      CREATE TABLE aux.t1 AS SELECT * FROM t1;
+      PRAGMA aux.schema_version = 30;
+      SELECT sql FROM aux.sqlite_master;
+    } 
+  } {{CREATE TABLE t1(a,b)}}
+  do_test alter3-5.2 {
+    execsql {
+      ALTER TABLE aux.t1 ADD COLUMN c VARCHAR(128);
+      SELECT sql FROM aux.sqlite_master;
+    }
+  } {{CREATE TABLE t1(a,b, c VARCHAR(128))}}
+  do_test alter3-5.3 {
+    execsql {
+      SELECT * FROM aux.t1;
+    }
+  } {1 one {} 2 two {}}
+  ifcapable schema_version {
+    do_test alter3-5.4 {
+      execsql {
+        PRAGMA aux.schema_version;
+      }
+    } {31}
+  }
+  if {!$has_codec} {
+    do_test alter3-5.5 {
+      list [get_file_format test2.db] [get_file_format]
+    } {3 3}
+  }
+  do_test alter3-5.6 {
+    execsql {
+      ALTER TABLE aux.t1 ADD COLUMN d DEFAULT 1000;
+      SELECT sql FROM aux.sqlite_master;
+    }
+  } {{CREATE TABLE t1(a,b, c VARCHAR(128), d DEFAULT 1000)}}
+  do_test alter3-5.7 {
+    execsql {
+      SELECT * FROM aux.t1;
+    }
+  } {1 one {} 1000 2 two {} 1000}
+  ifcapable schema_version {
+    do_test alter3-5.8 {
+      execsql {
+        PRAGMA aux.schema_version;
+      }
+    } {32}
+  }
+  do_test alter3-5.9 {
+    execsql {
+      SELECT * FROM t1;
+    }
+  } {1 one 2 two}
+  do_test alter3-5.99 {
+    execsql {
+      DROP TABLE aux.t1;
+      DROP TABLE t1;
+    }
+  } {}
+}
+
+#----------------------------------------------------------------
+# Test that the table schema is correctly reloaded when a column
+# is added to a table.
+#
+ifcapable trigger&&tempdb {
+  do_test alter3-6.1 {
+    execsql {
+      CREATE TABLE t1(a, b);
+      CREATE TABLE log(trig, a, b);
+
+      CREATE TRIGGER t1_a AFTER INSERT ON t1 BEGIN
+        INSERT INTO log VALUES('a', new.a, new.b);
+      END;
+      CREATE TEMP TRIGGER t1_b AFTER INSERT ON t1 BEGIN
+        INSERT INTO log VALUES('b', new.a, new.b);
+      END;
+  
+      INSERT INTO t1 VALUES(1, 2);
+      SELECT * FROM log;
+    }
+  } {b 1 2 a 1 2}
+  do_test alter3-6.2 {
+    execsql {
+      ALTER TABLE t1 ADD COLUMN c DEFAULT 'c';
+      INSERT INTO t1(a, b) VALUES(3, 4);
+      SELECT * FROM log;
+    }
+  } {b 1 2 a 1 2 b 3 4 a 3 4}
+}
+
+if {!$has_codec} {
+  ifcapable vacuum {
+    do_test alter3-7.1 {
+      execsql {
+        VACUUM;
+      }
+      get_file_format
+    } {1}
+    do_test alter3-7.2 {
+      execsql {
+        CREATE TABLE abc(a, b, c);
+        ALTER TABLE abc ADD d DEFAULT NULL;
+      }
+      get_file_format
+    } {3}
+    do_test alter3-7.3 {
+      execsql {
+        ALTER TABLE abc ADD e DEFAULT 10;
+      }
+      get_file_format
+    } {3}
+    do_test alter3-7.4 {
+      execsql {
+        ALTER TABLE abc ADD f DEFAULT NULL;
+      }
+      get_file_format
+    } {3}
+    do_test alter3-7.5 {
+      execsql {
+        VACUUM;
+      }
+      get_file_format
+    } {1}
+  }
+}
+
+# Ticket #1183 - Make sure adding columns to large tables does not cause
+# memory corruption (as was the case before this bug was fixed).
+do_test alter3-8.1 {
+  execsql {
+    CREATE TABLE t4(c1);
+  }
+} {}
+set ::sql ""
+do_test alter3-8.2 {
+  set cols c1
+  for {set i 2} {$i < 100} {incr i} {
+    execsql "
+      ALTER TABLE t4 ADD c$i
+    "
+    lappend cols c$i
+  }
+  set ::sql "CREATE TABLE t4([join $cols {, }])"
+  list 
+} {}
+do_test alter3-8.2 {
+  execsql {
+    SELECT sql FROM sqlite_master WHERE name = 't4';
+  }
+} [list $::sql]
+
+# 2021-07-20:  Add support for detecting CHECK and NOT NULL constraint
+# violations in ALTER TABLE ADD COLUMN
+#
+reset_db
+do_execsql_test alter3-9.1 {
+  CREATE TABLE t1(a,b);
+  INSERT INTO t1 VALUES(1, 2), ('null!',NULL), (3,4);
+} {}
+do_catchsql_test alter3-9.2 {
+  ALTER TABLE t1 ADD COLUMN c CHECK(a!=1);
+} {1 {CHECK constraint failed}}
+do_catchsql_test alter3-9.3 {
+  ALTER TABLE t1 ADD COLUMN c CHECK(a!=3);
+} {1 {CHECK constraint failed}}
+do_catchsql_test alter3-9.4 {
+  ALTER TABLE t1 ADD COLUMN c CHECK(a!=2);
+} {0 {}}
+do_catchsql_test alter3-9.5 {
+  ALTER TABLE t1 ADD COLUMN d AS (b+1) NOT NULL;
+} {1 {NOT NULL constraint failed}}
+do_catchsql_test alter3-9.6 {
+  ALTER TABLE t1 ADD COLUMN d AS (b+1) NOT NULL CHECK(a!=1);
+} {1 {CHECK constraint failed}}
+do_catchsql_test alter3-9.7 {
+  ALTER TABLE t1 ADD COLUMN d AS (b+1) NOT NULL CHECK(a!=3);
+} {1 {NOT NULL constraint failed}}
+
+do_execsql_test alter3-9.10 {
+  CREATE TEMP TABLE t0(m,n);
+  INSERT INTO t0 VALUES(1, 2), ('null!',NULL), (3,4);
+  ATTACH ':memory:' AS aux1;
+  CREATE TABLE aux1.t2(x,y);
+  INSERT INTO t2 VALUES(1, 2), ('null!',NULL), (3,4);
+} {}
+do_catchsql_test alter3-9.11 {
+  ALTER TABLE t0 ADD COLUMN xtra1 AS (n+1) NOT NULL CHECK(m!=1);
+} {1 {CHECK constraint failed}}
+do_catchsql_test alter3-9.12 {
+  ALTER TABLE t0 ADD COLUMN xtra1 AS (n+1) NOT NULL CHECK(m!=3);
+} {1 {NOT NULL constraint failed}}
+do_catchsql_test alter3-9.13 {
+  ALTER TABLE t2 ADD COLUMN xtra1 AS (y+1) NOT NULL CHECK(x!=1);
+} {1 {CHECK constraint failed}}
+do_catchsql_test alter3-9.14 {
+  ALTER TABLE t2 ADD COLUMN xtra1 AS (y+1) NOT NULL CHECK(x!=3);
+} {1 {NOT NULL constraint failed}}
+
+finish_test
diff --git a/test/alter4.test b/test/alter4.test
new file mode 100644
index 0000000000000000000000000000000000000000..c63ba6b07231eacb2268fd98aed70c701f785ace
--- /dev/null
+++ b/test/alter4.test
@@ -0,0 +1,427 @@
+# 2009 February 2
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing that SQLite can handle a subtle 
+# file format change that may be used in the future to implement
+# "ALTER TABLE ... ADD COLUMN".
+#
+# $Id: alter4.test,v 1.1 2009/02/02 18:03:22 drh Exp $
+#
+
+set testdir [file dirname $argv0]
+
+source $testdir/tester.tcl
+
+# If SQLITE_OMIT_ALTERTABLE is defined, omit this file.
+ifcapable !altertable {
+  finish_test
+  return
+}
+
+
+# Test Organisation:
+# ------------------
+#
+# alter4-1.*: Test that ALTER TABLE correctly modifies the CREATE TABLE sql.
+# alter4-2.*: Test error messages.
+# alter4-3.*: Test adding columns with default value NULL.
+# alter4-4.*: Test adding columns with default values other than NULL.
+# alter4-5.*: Test adding columns to tables in ATTACHed databases.
+# alter4-6.*: Test that temp triggers are not accidentally dropped.
+# alter4-7.*: Test that VACUUM resets the file-format.
+#
+
+do_test alter4-1.1 {
+  execsql {
+    CREATE TEMP TABLE abc(a, b, c);
+    SELECT sql FROM sqlite_temp_master;
+  }
+} {{CREATE TABLE abc(a, b, c)}}
+do_test alter4-1.1b {
+  execsql {
+    SELECT sql FROM temp.sqlite_master;
+  }
+} {{CREATE TABLE abc(a, b, c)}}
+do_test alter4-1.2 {
+  execsql {ALTER TABLE abc ADD d INTEGER;}
+  execsql {
+    SELECT sql FROM sqlite_temp_master;
+  }
+} {{CREATE TABLE abc(a, b, c, d INTEGER)}}
+do_test alter4-1.2b {
+  execsql {
+    SELECT sql FROM temp.sqlite_master;
+  }
+} {{CREATE TABLE abc(a, b, c, d INTEGER)}}
+do_test alter4-1.3 {
+  execsql {ALTER TABLE abc ADD e}
+  execsql {
+    SELECT sql FROM sqlite_temp_master;
+  }
+} {{CREATE TABLE abc(a, b, c, d INTEGER, e)}}
+do_test alter4-1.3b {
+  execsql {
+    SELECT sql FROM temp.sqlite_master;
+  }
+} {{CREATE TABLE abc(a, b, c, d INTEGER, e)}}
+do_test alter4-1.4 {
+  execsql {
+    CREATE TABLE temp.t1(a, b);
+    ALTER TABLE t1 ADD c;
+    SELECT sql FROM sqlite_temp_master WHERE tbl_name = 't1';
+  }
+} {{CREATE TABLE t1(a, b, c)}}
+do_test alter4-1.4b {
+  execsql {
+    SELECT sql FROM temp.sqlite_master WHERE tbl_name = 't1';
+  }
+} {{CREATE TABLE t1(a, b, c)}}
+do_test alter4-1.5 {
+  execsql {
+    ALTER TABLE t1 ADD d CHECK (a>d);
+    SELECT sql FROM sqlite_temp_master WHERE tbl_name = 't1';
+  }
+} {{CREATE TABLE t1(a, b, c, d CHECK (a>d))}}
+ifcapable foreignkey {
+  do_test alter4-1.6 {
+    execsql {
+      CREATE TEMP TABLE t2(a, b, UNIQUE(a, b));
+      ALTER TABLE t2 ADD c REFERENCES t1(c)  ;
+      SELECT sql FROM sqlite_temp_master
+       WHERE tbl_name = 't2' AND type = 'table';
+    }
+  } {{CREATE TABLE t2(a, b, c REFERENCES t1(c), UNIQUE(a, b))}}
+}
+do_test alter4-1.7 {
+  execsql {
+    CREATE TEMPORARY TABLE t3(a, b, UNIQUE(a, b));
+    ALTER TABLE t3 ADD COLUMN c VARCHAR(10, 20);
+    SELECT sql FROM sqlite_temp_master
+     WHERE tbl_name = 't3' AND type = 'table';
+  }
+} {{CREATE TABLE t3(a, b, c VARCHAR(10, 20), UNIQUE(a, b))}}
+do_test alter4-1.99 {
+  catchsql {
+    # May not exist if foriegn-keys are omitted at compile time.
+    DROP TABLE t2; 
+  }
+  execsql {
+    DROP TABLE abc; 
+    DROP TABLE t1; 
+    DROP TABLE t3; 
+  }
+} {}
+
+do_test alter4-2.1 {
+  execsql {
+    CREATE TABLE temp.t1(a, b);
+    INSERT INTO t1 VALUES(1,2);
+  }
+  catchsql {
+    ALTER TABLE t1 ADD c PRIMARY KEY;
+  }
+} {1 {Cannot add a PRIMARY KEY column}}
+do_test alter4-2.2 {
+  catchsql {
+    ALTER TABLE t1 ADD c UNIQUE
+  }
+} {1 {Cannot add a UNIQUE column}}
+do_test alter4-2.3 {
+  catchsql {
+    ALTER TABLE t1 ADD b VARCHAR(10)
+  }
+} {1 {duplicate column name: b}}
+do_test alter4-2.3 {
+  catchsql {
+    ALTER TABLE t1 ADD c NOT NULL;
+  }
+} {1 {Cannot add a NOT NULL column with default value NULL}}
+do_test alter4-2.4 {
+  catchsql {
+    ALTER TABLE t1 ADD c NOT NULL DEFAULT 10;
+  }
+} {0 {}}
+ifcapable view {
+  do_test alter4-2.5 {
+    execsql {
+      CREATE TEMPORARY VIEW v1 AS SELECT * FROM t1;
+    }
+    catchsql {
+      alter table v1 add column d;
+    }
+  } {1 {Cannot add a column to a view}}
+}
+do_test alter4-2.6 {
+  catchsql {
+    alter table t1 add column d DEFAULT CURRENT_TIME;
+  }
+} {1 {Cannot add a column with non-constant default}}
+do_test alter4-2.7 {
+  catchsql {
+    alter table t1 add column d default (-5+1);
+  }
+} {1 {Cannot add a column with non-constant default}}
+do_test alter4-2.99 {
+  execsql {
+    DROP TABLE t1;
+  }
+} {}
+
+do_test alter4-3.1 {
+  execsql {
+    CREATE TEMP TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, 100);
+    INSERT INTO t1 VALUES(2, 300);
+    SELECT * FROM t1;
+  }
+} {1 100 2 300}
+do_test alter4-3.1 {
+  execsql {
+    PRAGMA schema_version = 10;
+  }
+} {}
+do_test alter4-3.2 {
+  execsql {
+    ALTER TABLE t1 ADD c;
+    SELECT * FROM t1;
+  }
+} {1 100 {} 2 300 {}}
+ifcapable schema_version {
+  do_test alter4-3.4 {
+    execsql {
+      PRAGMA schema_version;
+    }
+  } {10}
+}
+
+do_test alter4-4.1 {
+  db close
+  forcedelete test.db
+  set ::DB [sqlite3 db test.db]
+  execsql {
+    CREATE TEMP TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, 100);
+    INSERT INTO t1 VALUES(2, 300);
+    SELECT * FROM t1;
+  }
+} {1 100 2 300}
+do_test alter4-4.1 {
+  execsql {
+    PRAGMA schema_version = 20;
+  }
+} {}
+do_test alter4-4.2 {
+  execsql {
+    ALTER TABLE t1 ADD c DEFAULT 'hello world';
+    SELECT * FROM t1;
+  }
+} {1 100 {hello world} 2 300 {hello world}}
+ifcapable schema_version {
+  do_test alter4-4.4 {
+    execsql {
+      PRAGMA schema_version;
+    }
+  } {20}
+}
+do_test alter4-4.99 {
+  execsql {
+    DROP TABLE t1;
+  }
+} {}
+
+ifcapable attach {
+  do_test alter4-5.1 {
+    forcedelete test2.db
+    forcedelete test2.db-journal
+    execsql {
+      CREATE TEMP TABLE t1(a, b);
+      INSERT INTO t1 VALUES(1, 'one');
+      INSERT INTO t1 VALUES(2, 'two');
+      ATTACH 'test2.db' AS aux;
+      CREATE TABLE aux.t1 AS SELECT * FROM t1;
+      PRAGMA aux.schema_version = 30;
+      SELECT sql FROM aux.sqlite_master;
+    } 
+  } {{CREATE TABLE t1(a,b)}}
+  do_test alter4-5.2 {
+    execsql {
+      ALTER TABLE aux.t1 ADD COLUMN c VARCHAR(128);
+      SELECT sql FROM aux.sqlite_master;
+    }
+  } {{CREATE TABLE t1(a,b, c VARCHAR(128))}}
+  do_test alter4-5.3 {
+    execsql {
+      SELECT * FROM aux.t1;
+    }
+  } {1 one {} 2 two {}}
+  ifcapable schema_version {
+    do_test alter4-5.4 {
+      execsql {
+        PRAGMA aux.schema_version;
+      }
+    } {31}
+  }
+  do_test alter4-5.6 {
+    execsql {
+      ALTER TABLE aux.t1 ADD COLUMN d DEFAULT 1000;
+      SELECT sql FROM aux.sqlite_master;
+    }
+  } {{CREATE TABLE t1(a,b, c VARCHAR(128), d DEFAULT 1000)}}
+  do_test alter4-5.7 {
+    execsql {
+      SELECT * FROM aux.t1;
+    }
+  } {1 one {} 1000 2 two {} 1000}
+  ifcapable schema_version {
+    do_test alter4-5.8 {
+      execsql {
+        PRAGMA aux.schema_version;
+      }
+    } {32}
+  }
+  do_test alter4-5.9 {
+    execsql {
+      SELECT * FROM t1;
+    }
+  } {1 one 2 two}
+  do_test alter4-5.99 {
+    execsql {
+      DROP TABLE aux.t1;
+      DROP TABLE t1;
+    }
+  } {}
+}
+
+#----------------------------------------------------------------
+# Test that the table schema is correctly reloaded when a column
+# is added to a table.
+#
+ifcapable trigger&&tempdb {
+  do_test alter4-6.1 {
+    execsql {
+      CREATE TEMP TABLE t1(a, b);
+      CREATE TEMP TABLE log(trig, a, b);
+
+      CREATE TRIGGER t1_a AFTER INSERT ON t1 BEGIN
+        INSERT INTO log VALUES('a', new.a, new.b);
+      END;
+      CREATE TEMP TRIGGER t1_b AFTER INSERT ON t1 BEGIN
+        INSERT INTO log VALUES('b', new.a, new.b);
+      END;
+  
+      INSERT INTO t1 VALUES(1, 2);
+      SELECT * FROM log ORDER BY trig, a, b;
+    }
+  } {a 1 2 b 1 2}
+  do_test alter4-6.2 {
+    execsql {
+      ALTER TABLE t1 ADD COLUMN c DEFAULT 'c';
+      INSERT INTO t1(a, b) VALUES(3, 4);
+      SELECT * FROM log ORDER BY trig, a, b;
+    }
+  } {a 1 2 a 3 4 b 1 2 b 3 4}
+}
+
+# Ticket #1183 - Make sure adding columns to large tables does not cause
+# memory corruption (as was the case before this bug was fixed).
+do_test alter4-8.1 {
+  execsql {
+    CREATE TEMP TABLE t4(c1);
+  }
+} {}
+set ::sql ""
+do_test alter4-8.2 {
+  set cols c1
+  for {set i 2} {$i < 100} {incr i} {
+    execsql "
+      ALTER TABLE t4 ADD c$i
+    "
+    lappend cols c$i
+  }
+  set ::sql "CREATE TABLE t4([join $cols {, }])"
+  list 
+} {}
+do_test alter4-8.2 {
+  execsql {
+    SELECT sql FROM sqlite_temp_master WHERE name = 't4';
+  }
+} [list $::sql]
+
+
+# Test that a default value equal to -1 multipied by the smallest possible
+# 64-bit integer is correctly converted to a real.
+do_execsql_test alter4-9.1 {
+  CREATE TABLE t5(
+    a INTEGER DEFAULT -9223372036854775808,
+    b INTEGER DEFAULT (-(-9223372036854775808))
+  );
+  INSERT INTO t5 DEFAULT VALUES;
+}
+
+do_execsql_test alter4-9.2 { SELECT typeof(a), a, typeof(b), b FROM t5; } {
+  integer -9223372036854775808
+  real     9.22337203685478e+18
+}
+
+do_execsql_test alter4-9.3 { 
+  ALTER TABLE t5 ADD COLUMN c INTEGER DEFAULT (-(-9223372036854775808));
+  SELECT typeof(c), c FROM t5;
+} {real 9.22337203685478e+18}
+
+# Confirm that doing an ALTER TABLE on a legacy format database
+# does not corrupt DESC indexes.
+#
+# Ticket https://www.sqlite.org/src/tktview/f68bf68513a1c
+#
+do_test alter4-10.1 {
+  db close
+  sqlite3 db :memory:
+  sqlite3_db_config db LEGACY_FILE_FORMAT 1
+  db eval {
+    CREATE TABLE t1(a,b,c);
+    CREATE INDEX t1a ON t1(a DESC);
+    INSERT INTO t1 VALUES(1,2,3);
+    INSERT INTO t1 VALUES(2,3,4);
+    ALTER TABLE t1 ADD COLUMN d;
+    PRAGMA integrity_check;
+  }
+} {ok}
+
+reset_db
+do_execsql_test alter4-11.0 {
+  CREATE TABLE t1(c INTEGER PRIMARY KEY, d);
+  INSERT INTO t1(c,d) VALUES(1,2);
+  PRAGMA foreign_keys = on;
+  ALTER TABLE t1 ADD COLUMN e;
+}
+
+do_execsql_test alter4-11.1 {
+  ALTER TABLE t1 ADD COLUMN f REFERENCES t1;
+}
+
+do_catchsql_test alter4-11.2 {
+  ALTER TABLE t1 ADD COLUMN g REFERENCES t1 DEFAULT 4;
+} {1 {Cannot add a REFERENCES column with non-NULL default value}}
+
+do_catchsql_test alter4-11.3 {
+  ALTER TABLE t2 ADD COLUMN g;
+} {1 {no such table: t2}}
+
+ifcapable fts5 {
+  do_execsql_test alter4-11.4 {
+    CREATE VIRTUAL TABLE fff USING fts5(f);
+  }
+  do_catchsql_test alter4-11.2 {
+    ALTER TABLE fff ADD COLUMN g;
+  } {1 {virtual tables may not be altered}}
+}
+
+finish_test
diff --git a/test/alterauth.test b/test/alterauth.test
new file mode 100644
index 0000000000000000000000000000000000000000..12645b36f0826103413d152eb4943c8bca06bc92
--- /dev/null
+++ b/test/alterauth.test
@@ -0,0 +1,72 @@
+# 2018 September 2
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+
+set testdir [file dirname $argv0]
+
+source $testdir/tester.tcl
+
+# If SQLITE_OMIT_ALTERTABLE is defined, omit this file.
+ifcapable !altertable {
+  finish_test
+  return
+}
+set testprefix alterauth
+
+set ::auth [list]
+proc xAuth {type args} {
+  if {$type == "SQLITE_ALTER_TABLE"} {
+    lappend ::auth [concat $type [lrange $args 0 3]]
+  }
+  return SQLITE_OK
+}
+db auth xAuth
+
+do_execsql_test 1.0 { CREATE TABLE t1(a, b, c); }
+
+do_test 1.1 {
+  set ::auth [list]
+  execsql { ALTER TABLE t1 RENAME TO t2 }
+  set ::auth
+} {{SQLITE_ALTER_TABLE main t1 {} {}}}
+
+do_test 1.2 {
+  set ::auth [list]
+  execsql { ALTER TABLE t2 RENAME c TO ccc }
+  set ::auth
+} {{SQLITE_ALTER_TABLE main t2 {} {}}}
+
+do_test 1.3 {
+  set ::auth [list]
+  execsql { ALTER TABLE t2 ADD COLUMN d }
+  set ::auth
+} {{SQLITE_ALTER_TABLE main t2 {} {}}}
+
+proc xAuth {type args} {
+  if {$type == "SQLITE_ALTER_TABLE"} {
+    return SQLITE_DENY
+  }
+  return SQLITE_OK
+}
+
+do_test 2.1 {
+  catchsql { ALTER TABLE t2 RENAME TO t3 }
+} {1 {not authorized}}
+
+do_test 2.2 {
+  catchsql { ALTER TABLE t2 RENAME d TO ddd }
+} {1 {not authorized}}
+
+do_test 2.3 {
+  catchsql { ALTER TABLE t2 ADD COLUMN e }
+} {1 {not authorized}}
+
+finish_test
diff --git a/test/alterauth2.test b/test/alterauth2.test
new file mode 100644
index 0000000000000000000000000000000000000000..6f9242d364ea249c156862d0ef873c94e2d53d92
--- /dev/null
+++ b/test/alterauth2.test
@@ -0,0 +1,119 @@
+# 2018 October 6
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+
+set testdir [file dirname $argv0]
+
+source $testdir/tester.tcl
+
+# If SQLITE_OMIT_ALTERTABLE is defined, omit this file.
+ifcapable !altertable {
+  finish_test
+  return
+}
+set testprefix alterauth2
+
+set ::auth [list]
+proc xAuth {type args} {
+  lappend ::auth [concat $type [lrange $args 0 3]]
+  if {$type=="SQLITE_READ" && [lindex $args 0] == "t2"} breakpoint
+  return SQLITE_OK
+}
+db auth xAuth
+
+proc do_auth_test {tn sql authcode} {
+  set script "
+    set ::auth \[list\]
+    execsql {$sql}
+    lsort -unique \[set ::auth\]
+  "
+
+  set normal [list {*}$authcode]
+  uplevel [list do_test $tn $script $normal]
+}
+
+do_execsql_test 1.0 { 
+  CREATE TABLE t1(a, b, c); 
+  CREATE VIEW v1 AS SELECT * FROM t1;
+  CREATE TRIGGER tr1 AFTER INSERT ON t1 BEGIN
+    DELETE FROM t1 WHERE a<new.a;
+  END;
+
+  CREATE TEMP TRIGGER tr2 AFTER UPDATE OF a, b ON t1 BEGIN
+    UPDATE t1 SET a=a+1 WHERE new.b<b;
+  END;
+}
+
+do_auth_test 1.1 {
+  ALTER TABLE t1 RENAME TO t2;
+} {
+    {SQLITE_ALTER_TABLE main t1 {} {}} 
+    {SQLITE_FUNCTION {} like {} {}} 
+  {SQLITE_FUNCTION {} sqlite_rename_table {} {}} 
+  {SQLITE_FUNCTION {} sqlite_rename_test {} {}} 
+    {SQLITE_FUNCTION {} substr {} {}} 
+    {SQLITE_READ sqlite_master name main {}} 
+    {SQLITE_READ sqlite_master sql main {}} 
+    {SQLITE_READ sqlite_master tbl_name main {}} 
+    {SQLITE_READ sqlite_master type main {}} 
+  {SQLITE_READ sqlite_temp_master name temp {}} 
+  {SQLITE_READ sqlite_temp_master sql temp {}} 
+  {SQLITE_READ sqlite_temp_master tbl_name temp {}} 
+  {SQLITE_READ sqlite_temp_master type temp {}} 
+  {SQLITE_SELECT {} {} {} {}} 
+    {SQLITE_UPDATE sqlite_master name main {}} 
+    {SQLITE_UPDATE sqlite_master sql main {}} 
+    {SQLITE_UPDATE sqlite_master tbl_name main {}} 
+  {SQLITE_UPDATE sqlite_temp_master sql temp {}} 
+  {SQLITE_UPDATE sqlite_temp_master tbl_name temp {}}
+}
+
+do_auth_test 1.2 {
+  ALTER TABLE t2 RENAME a TO aaa;
+} {
+  {SQLITE_ALTER_TABLE main t2 {} {}} 
+  {SQLITE_FUNCTION {} like {} {}} 
+  {SQLITE_FUNCTION {} sqlite_rename_column {} {}} 
+  {SQLITE_FUNCTION {} sqlite_rename_quotefix {} {}} 
+  {SQLITE_FUNCTION {} sqlite_rename_test {} {}} 
+  {SQLITE_READ sqlite_master name main {}} 
+  {SQLITE_READ sqlite_master sql main {}} 
+  {SQLITE_READ sqlite_master tbl_name main {}} 
+  {SQLITE_READ sqlite_master type main {}} 
+  {SQLITE_READ sqlite_temp_master name temp {}} 
+  {SQLITE_READ sqlite_temp_master sql temp {}} 
+  {SQLITE_READ sqlite_temp_master type temp {}} 
+  {SQLITE_SELECT {} {} {} {}} 
+  {SQLITE_UPDATE sqlite_master sql main {}} 
+  {SQLITE_UPDATE sqlite_temp_master sql temp {}}
+}
+
+do_auth_test 1.3 {
+  ALTER TABLE t2 DROP COLUMN c;
+} {
+  {SQLITE_ALTER_TABLE main t2 c {}} 
+  {SQLITE_FUNCTION {} like {} {}} 
+  {SQLITE_FUNCTION {} sqlite_drop_column {} {}}
+  {SQLITE_FUNCTION {} sqlite_rename_quotefix {} {}} 
+  {SQLITE_FUNCTION {} sqlite_rename_test {} {}} 
+  {SQLITE_READ sqlite_master name main {}} 
+  {SQLITE_READ sqlite_master sql main {}} 
+  {SQLITE_READ sqlite_master tbl_name main {}} 
+  {SQLITE_READ sqlite_master type main {}} 
+  {SQLITE_READ sqlite_temp_master name temp {}} 
+  {SQLITE_READ sqlite_temp_master sql temp {}} 
+  {SQLITE_READ sqlite_temp_master type temp {}} 
+  {SQLITE_SELECT {} {} {} {}} 
+  {SQLITE_UPDATE sqlite_master sql main {}}
+  {SQLITE_UPDATE sqlite_temp_master sql temp {}}
+}
+
+finish_test
diff --git a/test/altercol.test b/test/altercol.test
new file mode 100644
index 0000000000000000000000000000000000000000..f44aa2e065e9808edfe03af87276b2132026c27a
--- /dev/null
+++ b/test/altercol.test
@@ -0,0 +1,949 @@
+# 2009 February 2
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing that SQLite can handle a subtle 
+# file format change that may be used in the future to implement
+# "ALTER TABLE ... RENAME COLUMN ... TO".
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix altercol
+
+# If SQLITE_OMIT_ALTERTABLE is defined, omit this file.
+ifcapable !altertable {
+  finish_test
+  return
+}
+
+# Drop all the tables and views in the 'main' database of database connect
+# [db]. Sort the objects by name before dropping them.
+#
+proc drop_all_tables_and_views {db} {
+  set SQL {
+    SELECT name, type FROM sqlite_master 
+    WHERE type IN ('table', 'view') AND name NOT LIKE 'sqlite_%'
+    ORDER BY 1
+  }
+  foreach {z t} [db eval $SQL] {
+    db eval "DROP $t $z"
+  }
+}
+
+foreach {tn before after} {
+  1 {CREATE TABLE t1(a INTEGER, b TEXT, c BLOB)}
+    {CREATE TABLE t1(a INTEGER, d TEXT, c BLOB)}
+
+  2 {CREATE TABLE t1(a INTEGER, x TEXT, "b" BLOB)}
+    {CREATE TABLE t1(a INTEGER, x TEXT, "d" BLOB)}
+
+  3 {CREATE TABLE t1(a INTEGER, b TEXT, c BLOB, CHECK(b!=''))}
+    {CREATE TABLE t1(a INTEGER, d TEXT, c BLOB, CHECK(d!=''))}
+
+  4 {CREATE TABLE t1(a INTEGER, b TEXT, c BLOB, CHECK(t1.b!=''))}
+    {CREATE TABLE t1(a INTEGER, d TEXT, c BLOB, CHECK(t1.d!=''))}
+
+  5 {CREATE TABLE t1(a INTEGER, b TEXT, c BLOB, CHECK( coalesce(b,c) ))}
+    {CREATE TABLE t1(a INTEGER, d TEXT, c BLOB, CHECK( coalesce(d,c) ))}
+
+  6 {CREATE TABLE t1(a INTEGER, "b"TEXT, c BLOB, CHECK( coalesce(b,c) ))}
+    {CREATE TABLE t1(a INTEGER, "d"TEXT, c BLOB, CHECK( coalesce(d,c) ))}
+
+  7 {CREATE TABLE t1(a INTEGER, b TEXT, c BLOB, PRIMARY KEY(b, c))}
+    {CREATE TABLE t1(a INTEGER, d TEXT, c BLOB, PRIMARY KEY(d, c))}
+
+  8 {CREATE TABLE t1(a INTEGER, b TEXT PRIMARY KEY, c BLOB)}
+    {CREATE TABLE t1(a INTEGER, d TEXT PRIMARY KEY, c BLOB)}
+
+  9 {CREATE TABLE t1(a, b TEXT, c, PRIMARY KEY(a, b), UNIQUE("B"))}
+    {CREATE TABLE t1(a, d TEXT, c, PRIMARY KEY(a, d), UNIQUE("d"))}
+
+ 10 {CREATE TABLE t1(a, b, c);   CREATE INDEX t1i ON t1(a, c)}
+    {{CREATE TABLE t1(a, d, c)} {CREATE INDEX t1i ON t1(a, c)}}
+
+ 11 {CREATE TABLE t1(a, b, c);   CREATE INDEX t1i ON t1(b, c)}
+    {{CREATE TABLE t1(a, d, c)} {CREATE INDEX t1i ON t1(d, c)}}
+
+ 12 {CREATE TABLE t1(a, b, c);   CREATE INDEX t1i ON t1(b+b+b+b, c) WHERE b>0}
+    {{CREATE TABLE t1(a, d, c)} {CREATE INDEX t1i ON t1(d+d+d+d, c) WHERE d>0}}
+
+ 13 {CREATE TABLE t1(a, b, c, FOREIGN KEY (b) REFERENCES t2)}
+    {CREATE TABLE t1(a, d, c, FOREIGN KEY (d) REFERENCES t2)}
+
+ 14 {CREATE TABLE t1(a INTEGER, b TEXT, c BLOB, PRIMARY KEY(b))}
+    {CREATE TABLE t1(a INTEGER, d TEXT, c BLOB, PRIMARY KEY(d))}
+
+ 15 {CREATE TABLE t1(a INTEGER, b INTEGER, c BLOB, PRIMARY KEY(b))}
+    {CREATE TABLE t1(a INTEGER, d INTEGER, c BLOB, PRIMARY KEY(d))}
+
+ 16 {CREATE TABLE t1(a INTEGER, b INTEGER PRIMARY KEY, c BLOB)}
+    {CREATE TABLE t1(a INTEGER, d INTEGER PRIMARY KEY, c BLOB)}
+
+ 17  {CREATE TABLE t1(a INTEGER, b INTEGER PRIMARY KEY, c BLOB, FOREIGN KEY (b) REFERENCES t2)}
+     {CREATE TABLE t1(a INTEGER, d INTEGER PRIMARY KEY, c BLOB, FOREIGN KEY (d) REFERENCES t2)}
+
+} {
+  reset_db
+  do_execsql_test 1.$tn.0 $before
+
+  do_execsql_test 1.$tn.1 {
+    INSERT INTO t1 VALUES(1, 2, 3);
+  }
+
+  do_execsql_test 1.$tn.2 {
+    ALTER TABLE t1 RENAME COLUMN b TO d;
+  }
+
+  do_execsql_test 1.$tn.3 {
+    SELECT * FROM t1;
+  } {1 2 3}
+
+  if {[string first INDEX $before]>0} {
+    set res $after
+  } else {
+    set res [list $after]
+  }
+  do_execsql_test 1.$tn.4 {
+    SELECT sql FROM sqlite_master WHERE tbl_name='t1' AND sql!=''
+  } $res
+}
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test 2.0 {
+  CREATE TABLE t3(a, b, c, d, e, f, g, h, i, j, k, l, m, FOREIGN KEY (b, c, d, e, f, g, h, i, j, k, l, m) REFERENCES t4);
+}
+
+sqlite3 db2 test.db
+do_execsql_test -db db2 2.1 { SELECT b FROM t3 }
+
+do_execsql_test 2.2 {
+  ALTER TABLE t3 RENAME b TO biglongname;
+  SELECT sql FROM sqlite_master WHERE name='t3';
+} {{CREATE TABLE t3(a, biglongname, c, d, e, f, g, h, i, j, k, l, m, FOREIGN KEY (biglongname, c, d, e, f, g, h, i, j, k, l, m) REFERENCES t4)}}
+
+do_execsql_test -db db2 2.3 { SELECT biglongname FROM t3 }
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test 3.0 {
+  CREATE TABLE t4(x, y, z);
+  CREATE TRIGGER ttt AFTER INSERT ON t4 WHEN new.y<0 BEGIN
+    SELECT x, y, z FROM t4;
+    DELETE FROM t4 WHERE y=32;
+    UPDATE t4 SET x=y+1, y=0 WHERE y=32;
+    INSERT INTO t4(x, y, z) SELECT 4, 5, 6 WHERE 0;
+  END;
+  INSERT INTO t4 VALUES(3, 2, 1);
+}
+
+do_execsql_test 3.1 {
+  ALTER TABLE t4 RENAME y TO abc;
+  SELECT sql FROM sqlite_master WHERE name='t4';
+} {{CREATE TABLE t4(x, abc, z)}}
+
+do_execsql_test 3.2 {
+  SELECT * FROM t4;
+} {3 2 1}
+
+do_execsql_test 3.3 { INSERT INTO t4 VALUES(6, 5, 4); } {}
+
+do_execsql_test 3.4 { SELECT sql FROM sqlite_master WHERE type='trigger' } {
+{CREATE TRIGGER ttt AFTER INSERT ON t4 WHEN new.abc<0 BEGIN
+    SELECT x, abc, z FROM t4;
+    DELETE FROM t4 WHERE abc=32;
+    UPDATE t4 SET x=abc+1, abc=0 WHERE abc=32;
+    INSERT INTO t4(x, abc, z) SELECT 4, 5, 6 WHERE 0;
+  END}
+}
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test 4.0 {
+  CREATE TABLE c1(a, b, FOREIGN KEY (a, b) REFERENCES p1(c, d));
+  CREATE TABLE p1(c, d, PRIMARY KEY(c, d));
+  PRAGMA foreign_keys = 1;
+  INSERT INTO p1 VALUES(1, 2);
+  INSERT INTO p1 VALUES(3, 4);
+}
+
+do_execsql_test 4.1 {
+  ALTER TABLE p1 RENAME d TO "silly name";
+  SELECT sql FROM sqlite_master WHERE name IN ('c1', 'p1');
+} {
+  {CREATE TABLE c1(a, b, FOREIGN KEY (a, b) REFERENCES p1(c, "silly name"))}
+  {CREATE TABLE p1(c, "silly name", PRIMARY KEY(c, "silly name"))}
+}
+
+do_execsql_test 4.2 { INSERT INTO c1 VALUES(1, 2); }
+
+do_execsql_test 4.3 {
+  CREATE TABLE c2(a, b, FOREIGN KEY (a, b) REFERENCES p1);
+}
+
+do_execsql_test 4.4 {
+  ALTER TABLE p1 RENAME "silly name" TO reasonable;
+  SELECT sql FROM sqlite_master WHERE name IN ('c1', 'c2', 'p1');
+} {
+  {CREATE TABLE c1(a, b, FOREIGN KEY (a, b) REFERENCES p1(c, "reasonable"))}
+  {CREATE TABLE p1(c, "reasonable", PRIMARY KEY(c, "reasonable"))}
+  {CREATE TABLE c2(a, b, FOREIGN KEY (a, b) REFERENCES p1)}
+}
+
+#-------------------------------------------------------------------------
+
+do_execsql_test 5.0 {
+  CREATE TABLE t5(a, b, c);
+  CREATE INDEX t5a ON t5(a);
+  INSERT INTO t5 VALUES(1, 2, 3), (4, 5, 6);
+  ANALYZE;
+}
+
+do_execsql_test 5.1 {
+  ALTER TABLE t5 RENAME b TO big;
+  SELECT big FROM t5;
+} {2 5}
+
+do_catchsql_test 6.1 {
+  ALTER TABLE sqlite_stat1 RENAME tbl TO thetable;
+} {1 {table sqlite_stat1 may not be altered}}
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test 6.0 {
+  CREATE TABLE blob(
+    rid INTEGER PRIMARY KEY,
+    rcvid INTEGER,
+    size INTEGER,
+    uuid TEXT UNIQUE NOT NULL,
+    content BLOB,
+    CHECK( length(uuid)>=40 AND rid>0 )
+  );
+}
+
+do_execsql_test 6.1 {
+  ALTER TABLE "blob" RENAME COLUMN "rid" TO "a1";
+}
+
+do_catchsql_test 6.2 {
+  ALTER TABLE "blob" RENAME COLUMN "a1" TO [where];
+} {0 {}}
+
+do_execsql_test 6.3 {
+  SELECT "where" FROM blob;
+} {}
+
+#-------------------------------------------------------------------------
+# Triggers.
+#
+db close
+db2 close
+reset_db
+do_execsql_test 7.0 {
+  CREATE TABLE c(x);
+  INSERT INTO c VALUES(0);
+  CREATE TABLE t6("col a", "col b", "col c");
+  CREATE TRIGGER zzz AFTER UPDATE OF "col a", "col c" ON t6 BEGIN
+    UPDATE c SET x=x+1;
+  END;
+}
+
+do_execsql_test 7.1.1 {
+  INSERT INTO t6 VALUES(0, 0, 0);
+  UPDATE t6 SET "col c" = 1;
+  SELECT * FROM c;
+} {1}
+
+do_execsql_test 7.1.2 {
+  ALTER TABLE t6 RENAME "col c" TO "col 3";
+}
+
+do_execsql_test 7.1.3 {
+  UPDATE t6 SET "col 3" = 0;
+  SELECT * FROM c;
+} {2}
+
+#-------------------------------------------------------------------------
+# Views.
+#
+reset_db
+do_execsql_test 8.0 {
+  CREATE TABLE a1(x INTEGER, y TEXT, z BLOB, PRIMARY KEY(x));
+  CREATE TABLE a2(a, b, c);
+  CREATE VIEW v1 AS SELECT x, y, z FROM a1;
+}
+
+do_execsql_test 8.1 {
+  ALTER TABLE a1 RENAME y TO yyy;
+  SELECT sql FROM sqlite_master WHERE type='view';
+} {{CREATE VIEW v1 AS SELECT x, yyy, z FROM a1}}
+
+do_execsql_test 8.2.1 {
+  DROP VIEW v1;
+  CREATE VIEW v2 AS SELECT x, x+x, a, a+a FROM a1, a2;
+} {}
+do_execsql_test 8.2.2 {
+  ALTER TABLE a1 RENAME x TO xxx;
+}
+do_execsql_test 8.2.3 {
+  SELECT sql FROM sqlite_master WHERE type='view';
+} {{CREATE VIEW v2 AS SELECT xxx, xxx+xxx, a, a+a FROM a1, a2}}
+
+do_execsql_test 8.3.1 {
+  DROP TABLE a2;
+  DROP VIEW v2;
+  CREATE TABLE a2(a INTEGER PRIMARY KEY, b, c);
+  CREATE VIEW v2 AS SELECT xxx, xxx+xxx, a, a+a FROM a1, a2;
+} {}
+do_execsql_test 8.3.2 {
+  ALTER TABLE a1 RENAME xxx TO x;
+}
+do_execsql_test 8.3.3 {
+  SELECT sql FROM sqlite_master WHERE type='view';
+} {{CREATE VIEW v2 AS SELECT x, x+x, a, a+a FROM a1, a2}}
+
+do_execsql_test 8.4.0 {
+  CREATE TABLE b1(a, b, c);
+  CREATE TABLE b2(x, y, z);
+}
+
+do_execsql_test 8.4.1 {
+  CREATE VIEW vvv AS SELECT c+c || coalesce(c, c) FROM b1, b2 WHERE x=c GROUP BY c HAVING c>0;
+  ALTER TABLE b1 RENAME c TO "a;b";
+  SELECT sql FROM sqlite_master WHERE name='vvv';
+} {{CREATE VIEW vvv AS SELECT "a;b"+"a;b" || coalesce("a;b", "a;b") FROM b1, b2 WHERE x="a;b" GROUP BY "a;b" HAVING "a;b">0}}
+
+do_execsql_test 8.4.2 {
+  CREATE VIEW www AS SELECT b FROM b1 UNION ALL SELECT y FROM b2;
+  ALTER TABLE b1 RENAME b TO bbb;
+  SELECT sql FROM sqlite_master WHERE name='www';
+} {{CREATE VIEW www AS SELECT bbb FROM b1 UNION ALL SELECT y FROM b2}}
+
+db collate nocase {string compare}
+
+do_execsql_test 8.4.3 {
+  CREATE VIEW xxx AS SELECT a FROM b1 UNION SELECT x FROM b2 ORDER BY 1 COLLATE nocase;
+}
+
+do_execsql_test 8.4.4 {
+  ALTER TABLE b2 RENAME x TO hello;
+  SELECT sql FROM sqlite_master WHERE name='xxx';
+} {{CREATE VIEW xxx AS SELECT a FROM b1 UNION SELECT hello FROM b2 ORDER BY 1 COLLATE nocase}}
+
+do_catchsql_test 8.4.5 {
+  CREATE VIEW zzz AS SELECT george, ringo FROM b1;
+  ALTER TABLE b1 RENAME a TO aaa;
+} {1 {error in view zzz: no such column: george}}
+
+do_execsql_test 8.5 {
+  DROP VIEW zzz;
+  CREATE TABLE t5(a TEXT, b INT);
+  INSERT INTO t5(a,b) VALUES('aaa',7),('bbb',3),('ccc',4);
+  CREATE VIEW vt5(x) AS SELECT group_concat(a ORDER BY b) FROM t5;
+  SELECT x FROM vt5;
+} {bbb,ccc,aaa}
+do_execsql_test 8.5.1 {
+  ALTER TABLE t5 RENAME COLUMN b TO bbb;
+  SELECT sql FROM sqlite_schema WHERE name='vt5';
+} {{CREATE VIEW vt5(x) AS SELECT group_concat(a ORDER BY bbb) FROM t5}}
+do_execsql_test 8.5.2 {
+  SELECT x FROM vt5;
+} {bbb,ccc,aaa}
+
+#-------------------------------------------------------------------------
+# More triggers.
+#
+proc do_rename_column_test {tn old new lSchema} {
+  for {set i 0} {$i < 2} {incr i} {
+    drop_all_tables_and_views db
+
+    set lSorted [list]
+    foreach sql $lSchema { 
+      execsql $sql 
+      lappend lSorted [string trim $sql]
+    }
+    set lSorted [lsort $lSorted]
+
+    do_execsql_test $tn.$i.1 {
+      SELECT sql FROM sqlite_master WHERE sql!='' ORDER BY 1
+    } $lSorted
+
+    if {$i==1} {
+      db close
+      sqlite3 db test.db
+    }
+
+    do_execsql_test $tn.$i.2 "ALTER TABLE t1 RENAME $old TO $new"
+
+    do_execsql_test $tn.$i.3 {
+      SELECT sql FROM sqlite_master ORDER BY 1
+    } [string map [list $old $new] $lSorted]
+  }
+}
+
+foreach {tn old new lSchema} {
+  1 _x_ _xxx_ {
+    { CREATE TABLE t1(a, b, _x_) }
+    { CREATE TRIGGER AFTER INSERT ON t1 BEGIN
+        SELECT _x_ FROM t1;
+      END }
+  }
+
+  2 _x_ _xxx_ {
+    { CREATE TABLE t1(a, b, _x_) }
+    { CREATE TABLE t2(c, d, e) }
+    { CREATE TRIGGER ttt AFTER INSERT ON t2 BEGIN
+        SELECT _x_ FROM t1;
+      END }
+  }
+
+  3 _x_ _xxx_ {
+    { CREATE TABLE t1(a, b, _x_ INTEGER, PRIMARY KEY(_x_), CHECK(_x_>0)) }
+    { CREATE TABLE t2(c, d, e) }
+    { CREATE TRIGGER ttt AFTER UPDATE  ON t1 BEGIN
+        INSERT INTO t2 VALUES(new.a, new.b, new._x_);
+      END }
+  }
+
+  4 _x_ _xxx_ {
+    { CREATE TABLE t1(a, b, _x_ INTEGER, PRIMARY KEY(_x_), CHECK(_x_>0)) }
+    { CREATE TRIGGER ttt AFTER UPDATE  ON t1 BEGIN
+        INSERT INTO t1 VALUES(new.a, new.b, new._x_)
+          ON CONFLICT (_x_) WHERE _x_>10 DO UPDATE SET _x_ = _x_+1;
+      END }
+  }
+
+  4 _x_ _xxx_ {
+    { CREATE TABLE t1(a, b, _x_ INTEGER, PRIMARY KEY(_x_), CHECK(_x_>0)) }
+    { CREATE TRIGGER ttt AFTER UPDATE  ON t1 BEGIN
+        INSERT INTO t1 VALUES(new.a, new.b, new._x_)
+          ON CONFLICT (_x_) WHERE _x_>10 DO NOTHING;
+      END }
+  }
+} {
+  do_rename_column_test 9.$tn $old $new $lSchema
+}
+
+#-------------------------------------------------------------------------
+# Test that views can be edited even if there are missing collation 
+# sequences or user defined functions.
+#
+reset_db
+
+ifcapable vtab {
+  foreach {tn old new lSchema} {
+    1 _x_ _xxx_ {
+      { CREATE TABLE t1(a, b, _x_) }
+      { CREATE VIEW s1 AS SELECT a, b, _x_ FROM t1 WHERE _x_='abc' COLLATE xyz }
+    }
+  
+    2 _x_ _xxx_ {
+      { CREATE TABLE t1(a, b, _x_) }
+      { CREATE VIEW v1 AS SELECT a, b, _x_ FROM t1 WHERE scalar(_x_) }
+    }
+  
+    3 _x_ _xxx_ {
+      { CREATE TABLE t1(a, b, _x_) }
+      { CREATE VIEW v1 AS SELECT a, b, _x_ FROM t1 WHERE _x_ = unicode(1, 2, 3) }
+    }
+  
+    4 _x_ _xxx_ {
+      { CREATE TABLE t1(a, b, _x_) }
+      { CREATE VIRTUAL TABLE e1 USING echo(t1) }
+    }
+  } {
+    register_echo_module db
+    do_rename_column_test 10.$tn $old $new $lSchema
+  }
+  
+  #--------------------------------------------------------------------------
+  # Test that if a view or trigger refers to a virtual table for which the
+  # module is not available, RENAME COLUMN cannot proceed.
+  #
+  reset_db
+  register_echo_module db
+  do_execsql_test 11.0 {
+    CREATE TABLE x1(a, b, c);
+    CREATE VIRTUAL TABLE e1 USING echo(x1);
+  }
+  db close
+  sqlite3 db test.db
+  
+  do_execsql_test 11.1 {
+    ALTER TABLE x1 RENAME b TO bbb;
+    SELECT sql FROM sqlite_master;
+  } { {CREATE TABLE x1(a, bbb, c)} {CREATE VIRTUAL TABLE e1 USING echo(x1)} }
+  
+  do_execsql_test 11.2 {
+    CREATE VIEW v1 AS SELECT e1.*, x1.c FROM e1, x1;
+  }
+  
+  do_catchsql_test 11.3 {
+    ALTER TABLE x1 RENAME c TO ccc;
+  } {1 {error in view v1: no such module: echo}}
+}
+
+#-------------------------------------------------------------------------
+# Test some error conditions:
+#
+#   1. Renaming a column of a system table,
+#   2. Renaming a column of a VIEW,
+#   3. Renaming a column of a virtual table.
+#   4. Renaming a column that does not exist.
+#   5. Renaming a column of a table that does not exist.
+#
+reset_db
+do_execsql_test 12.1.1 {
+  CREATE TABLE t1(a, b);
+  CREATE INDEX t1a ON t1(a);
+  INSERT INTO t1 VALUES(1, 1), (2, 2), (3, 4);
+  ANALYZE;
+}
+do_catchsql_test 12.1.2 {
+  ALTER TABLE sqlite_stat1 RENAME idx TO theindex;
+} {1 {table sqlite_stat1 may not be altered}}
+do_execsql_test 12.1.3 {
+  SELECT sql FROM sqlite_master WHERE tbl_name = 'sqlite_stat1'
+} {{CREATE TABLE sqlite_stat1(tbl,idx,stat)}}
+
+do_execsql_test 12.2.1 {
+  CREATE VIEW v1 AS SELECT * FROM t1;
+  CREATE VIEW v2(c, d) AS SELECT * FROM t1;
+}
+do_catchsql_test 12.2.2 {
+  ALTER TABLE v1 RENAME a TO z;
+} {1 {cannot rename columns of view "v1"}}
+do_catchsql_test 12.2.3 {
+  ALTER TABLE v2 RENAME c TO y;
+} {1 {cannot rename columns of view "v2"}}
+
+ifcapable fts5 {
+  do_execsql_test 12.3.1 {
+    CREATE VIRTUAL TABLE ft USING fts5(a, b, c);
+  }
+  do_catchsql_test 12.3.2 {
+    ALTER TABLE ft RENAME a TO z;
+  } {1 {cannot rename columns of virtual table "ft"}}
+}
+
+do_execsql_test 12.4.1 {
+  CREATE TABLE t2(x, y, z);
+}
+do_catchsql_test 12.4.2 {
+  ALTER TABLE t2 RENAME COLUMN a TO b;
+} {1 {no such column: "a"}}
+
+do_catchsql_test 12.5.1 {
+  ALTER TABLE t3 RENAME COLUMN a TO b;
+} {1 {no such table: t3}}
+
+#-------------------------------------------------------------------------
+# Test the effect of some parse/resolve errors.
+#
+reset_db
+do_execsql_test 13.1.1 {
+  CREATE TABLE x1(i INTEGER, t TEXT UNIQUE);
+  CREATE TRIGGER tr1 AFTER INSERT ON x1 BEGIN
+    SELECT * FROM nosuchtable;
+  END;
+}
+
+do_catchsql_test 13.1.2 {
+  ALTER TABLE x1 RENAME COLUMN t TO ttt;
+} {1 {error in trigger tr1: no such table: main.nosuchtable}}
+
+do_execsql_test 13.1.3 {
+  DROP TRIGGER tr1;
+  CREATE INDEX x1i ON x1(i);
+  SELECT sql FROM sqlite_master WHERE name='x1i';
+} {{CREATE INDEX x1i ON x1(i)}}
+
+sqlite3_db_config db DEFENSIVE 0
+do_execsql_test 13.1.4 {
+  PRAGMA writable_schema = ON;
+  UPDATE sqlite_master SET sql = 'CREATE INDEX x1i ON x1(j)' WHERE name='x1i';
+  PRAGMA writable_schema = OFF;
+} {}
+
+do_catchsql_test 13.1.5 {
+  ALTER TABLE x1 RENAME COLUMN t TO ttt;
+} {1 {error in index x1i: no such column: j}}
+
+do_execsql_test 13.1.6 {
+  PRAGMA writable_schema = ON;
+  UPDATE sqlite_master SET sql = '' WHERE name='x1i';
+  PRAGMA writable_schema = OFF;
+} {}
+
+do_catchsql_test 13.1.7 {
+  ALTER TABLE x1 RENAME COLUMN t TO ttt;
+} {1 {error in index x1i: }}
+
+do_execsql_test 13.1.8 {
+  PRAGMA writable_schema = ON;
+  DELETE FROM sqlite_master WHERE name = 'x1i';
+  PRAGMA writable_schema = OFF;
+}
+
+do_execsql_test 13.2.0 {
+  CREATE TABLE data(x UNIQUE, y, z);
+}
+foreach {tn trigger error} {
+  1 {
+    CREATE TRIGGER tr1 AFTER INSERT ON x1 BEGIN
+      UPDATE data SET x=x+1 WHERE zzz=new.i;
+    END;
+  } {no such column: zzz}
+
+  2 {
+    CREATE TRIGGER tr1 AFTER INSERT ON x1 BEGIN
+      INSERT INTO data(x, y) VALUES(new.i, new.t, 1) 
+        ON CONFLICT (x) DO UPDATE SET z=zz+1;
+    END;
+  } {no such column: zz}
+
+  3 {
+    CREATE TRIGGER tr1 AFTER INSERT ON x1 BEGIN
+      INSERT INTO x1(i, t) VALUES(new.i+1, new.t||'1') 
+        ON CONFLICT (tttttt) DO UPDATE SET t=i+1;
+    END;
+  } {no such column: tttttt}
+
+  4 {
+    CREATE TRIGGER tr1 AFTER INSERT ON x1 BEGIN
+      INSERT INTO nosuchtable VALUES(new.i, new.t);
+    END;
+  } {no such table: main.nosuchtable}
+} {
+  do_execsql_test 13.2.$tn.1 "
+    DROP TRIGGER IF EXISTS tr1;
+    $trigger
+  "
+
+  do_catchsql_test 13.2.$tn.2 {
+    ALTER TABLE x1 RENAME COLUMN t TO ttt;
+  } "1 {error in trigger tr1: $error}"
+}
+
+#-------------------------------------------------------------------------
+# Passing invalid parameters directly to sqlite_rename_column().
+#
+sqlite3_test_control SQLITE_TESTCTRL_INTERNAL_FUNCTIONS db
+do_execsql_test 14.1 {
+  CREATE TABLE ddd(sql, type, object, db, tbl, icol, znew, bquote);
+  INSERT INTO ddd VALUES(
+      'CREATE TABLE x1(i INTEGER, t TEXT)',
+      'table', 'x1', 'main', 'x1', -1, 'zzz', 0
+  ), (
+      'CREATE TABLE x1(i INTEGER, t TEXT)',
+      'table', 'x1', 'main', 'x1', 2, 'zzz', 0
+  ), (
+      'CREATE TABLE x1(i INTEGER, t TEXT)',
+      'table', 'x1', 'main', 'notable', 0, 'zzz', 0
+  ), (
+      'CREATE TABLE x1(i INTEGER, t TEXT)',
+      'table', 'x1', 'main', 'ddd', -1, 'zzz', 0
+  );
+} {}
+
+do_execsql_test 14.2 {
+  SELECT 
+  sqlite_rename_column(sql, type, object, db, tbl, icol, znew, bquote, 0)
+  FROM ddd;
+} {{} {} {} {}}
+sqlite3_test_control SQLITE_TESTCTRL_INTERNAL_FUNCTIONS db
+
+# If the INTERNAL_FUNCTIONS test-control is disabled (which is the default)
+# then the sqlite_rename_table() SQL function is not accessible to
+# ordinary SQL.
+#
+do_catchsql_test 14.3 {
+  SELECT sqlite_rename_column(0,0,0,0,0,0,0,0,0);
+} {1 {no such function: sqlite_rename_column}}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 15.0 {
+  CREATE TABLE xxx(a, b, c);
+  SELECT a AS d FROM xxx WHERE d=0;
+}
+
+do_execsql_test 15.1 {
+  CREATE VIEW vvv AS SELECT a AS d FROM xxx WHERE d=0;
+  ALTER TABLE xxx RENAME a TO xyz;
+}
+
+do_execsql_test 15.2 {
+  SELECT sql FROM sqlite_master WHERE type='view';
+} {{CREATE VIEW vvv AS SELECT xyz AS d FROM xxx WHERE d=0}}
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test 16.1.0 {
+  CREATE TABLE t1(a,b,c);
+  CREATE TABLE t2(d,e,f);
+  INSERT INTO t1 VALUES(1,2,3);
+  INSERT INTO t2 VALUES(4,5,6);
+  CREATE VIEW v4 AS SELECT a, d FROM t1, t2;
+  SELECT * FROM v4;
+} {1 4}
+
+do_catchsql_test 16.1.1 {
+  ALTER TABLE t2 RENAME d TO a;
+} {1 {error in view v4 after rename: ambiguous column name: a}}
+
+do_execsql_test 16.1.2 {
+  SELECT * FROM v4;
+} {1 4}
+
+do_execsql_test 16.1.3 {
+  CREATE UNIQUE INDEX t2d ON t2(d);
+  CREATE TRIGGER tr1 AFTER INSERT ON t1 BEGIN
+    INSERT INTO t2 VALUES(new.a, new.b, new.c)
+      ON CONFLICT(d) DO UPDATE SET f = excluded.f;
+  END;
+}
+
+do_execsql_test 16.1.4 {
+  INSERT INTO t1 VALUES(4, 8, 456);
+  SELECT * FROM t2;
+} {4 5 456}
+
+do_execsql_test 16.1.5 {
+  ALTER TABLE t2 RENAME COLUMN f TO "big f";
+  INSERT INTO t1 VALUES(4, 0, 20456);
+  SELECT * FROM t2;
+} {4 5 20456}
+
+do_execsql_test 16.1.6 {
+  ALTER TABLE t1 RENAME COLUMN c TO "big c";
+  INSERT INTO t1 VALUES(4, 0, 0);
+  SELECT * FROM t2;
+} {4 5 0}
+
+do_execsql_test 16.2.1 {
+  CREATE VIEW temp.v5 AS SELECT "big c" FROM t1; 
+  SELECT * FROM v5;
+} {3 456 20456 0}
+
+do_execsql_test 16.2.2 {
+  ALTER TABLE t1 RENAME COLUMN "big c" TO reallybigc;
+} {}
+
+do_execsql_test 16.2.3 {
+  SELECT * FROM v5;
+} {3 456 20456 0}
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test 17.0 {
+  CREATE TABLE u7(x, y, z);
+  CREATE TRIGGER u7t AFTER INSERT ON u7 BEGIN
+    INSERT INTO u8 VALUES(new.x, new.y, new.z);
+  END;
+} {}
+do_catchsql_test 17.1 {
+  ALTER TABLE u7 RENAME x TO xxx;
+} {1 {error in trigger u7t: no such table: main.u8}}
+
+do_execsql_test 17.2 {
+  CREATE TEMP TABLE uu7(x, y, z);
+  CREATE TRIGGER uu7t AFTER INSERT ON uu7 BEGIN
+    INSERT INTO u8 VALUES(new.x, new.y, new.z);
+  END;
+} {}
+do_catchsql_test 17.3 {
+  ALTER TABLE uu7 RENAME x TO xxx;
+} {1 {error in trigger uu7t: no such table: u8}}
+
+reset_db
+forcedelete test.db2
+do_execsql_test 18.0 {
+  ATTACH 'test.db2' AS aux;
+  CREATE TABLE t1(a);
+  CREATE TABLE aux.log(v);
+  CREATE TEMP TRIGGER tr1 AFTER INSERT ON t1 BEGIN
+    INSERT INTO log VALUES(new.a);
+  END;
+  INSERT INTO t1 VALUES(111);
+  SELECT v FROM log;
+} {111}
+
+do_execsql_test 18.1 {
+  ALTER TABLE t1 RENAME a TO b;
+}
+
+reset_db
+do_execsql_test 19.0 {
+  CREATE TABLE t1(a, b);
+  CREATE TABLE t2(c, d);
+  CREATE VIEW v2(e) AS SELECT coalesce(t2.c,t1.a) FROM t1, t2 WHERE t1.b=t2.d;
+}
+
+do_execsql_test 19.1 {
+  ALTER TABLE t1 RENAME a TO f;
+  SELECT sql FROM sqlite_master WHERE name = 'v2';
+} {
+  {CREATE VIEW v2(e) AS SELECT coalesce(t2.c,t1.f) FROM t1, t2 WHERE t1.b=t2.d}
+}
+
+# 2019-01-08: https://www.sqlite.org/src/tktview/bc8d94f0fbd633fd9a051e3
+#
+# ALTER TABLE RENAME COLUMN does not work for tables that have redundant
+# UNIQUE constraints.
+#
+sqlite3 db :memory:
+do_execsql_test 20.100 {
+  CREATE TABLE t1(aaa,b,c,UNIQUE(aaA),PRIMARY KEY(aAa),UNIQUE(aAA));
+  ALTER TABLE t1 RENAME aaa TO bbb;
+  SELECT sql FROM sqlite_master WHERE name='t1';
+} {{CREATE TABLE t1(bbb,b,c,UNIQUE(bbb),PRIMARY KEY(bbb),UNIQUE(bbb))}}
+do_execsql_test 20.105 {
+  DROP TABLE t1;
+  CREATE TABLE t1(aaa,b,c,UNIQUE(aaA),PRIMARY KEY(aAa),UNIQUE(aAA))WITHOUT ROWID;
+  ALTER TABLE t1 RENAME aaa TO bbb;
+  SELECT sql FROM sqlite_master WHERE name='t1';
+} {{CREATE TABLE t1(bbb,b,c,UNIQUE(bbb),PRIMARY KEY(bbb),UNIQUE(bbb))WITHOUT ROWID}}
+do_execsql_test 20.110 {
+  DROP TABLE t1;
+  CREATE TABLE t1(aa UNIQUE,bb UNIQUE,cc UNIQUE,UNIQUE(aA),PRIMARY KEY(bB),UNIQUE(cC));
+  ALTER TABLE t1 RENAME aa TO xx;
+  ALTER TABLE t1 RENAME bb TO yy;
+  ALTER TABLE t1 RENAME cc TO zz;
+  SELECT sql FROM sqlite_master WHERE name='t1';
+} {{CREATE TABLE t1(xx UNIQUE,yy UNIQUE,zz UNIQUE,UNIQUE(xx),PRIMARY KEY(yy),UNIQUE(zz))}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 21.0 {
+  CREATE TABLE t1(a, b, c NOT NULL);
+  CREATE TRIGGER tr1 AFTER INSERT ON t1 WHEN new.c IS NOT NULL BEGIN
+    SELECT c NOT NULL FROM t1;
+  END;
+}
+
+do_execsql_test 21.1 {
+  ALTER TABLE t1 RENAME c TO d;
+}
+
+do_execsql_test 21.2 {
+  SELECT sql FROM sqlite_schema WHERE name IS 'tr1'
+} {{CREATE TRIGGER tr1 AFTER INSERT ON t1 WHEN new.d IS NOT NULL BEGIN
+    SELECT d NOT NULL FROM t1;
+  END}
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 22.0 {
+  CREATE TABLE t1(a, b);
+  CREATE TABLE t2(c, othername, extra AS (c + 1));
+  ALTER TABLE t1 RENAME a to othername;
+  SELECT sql FROM sqlite_schema;
+} {
+  {CREATE TABLE t1(othername, b)}
+  {CREATE TABLE t2(c, othername, extra AS (c + 1))}
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+sqlite3_db_config db SQLITE_DBCONFIG_DQS_DDL 1
+sqlite3_db_config db SQLITE_DBCONFIG_DQS_DML 1
+do_execsql_test 22.0 {
+  CREATE TABLE t1(a, b);
+  CREATE INDEX x1 on t1("c"=b);
+  INSERT INTO t1 VALUES('a', 'a');
+  INSERT INTO t1 VALUES('b', 'b');
+  INSERT INTO t1 VALUES('c', 'c');
+  ALTER TABLE t1 RENAME COLUMN a TO "c";
+  PRAGMA integrity_check;
+} {ok}
+
+reset_db
+do_execsql_test 23.0 {
+  CREATE TABLE t1('a'"b",c);
+  CREATE INDEX i1 ON t1('a');
+  INSERT INTO t1 VALUES(1,2), (3,4);
+  ALTER TABLE t1 RENAME COLUMN a TO x;
+  PRAGMA integrity_check;
+  SELECT sql FROM sqlite_schema WHERE name='t1';
+
+} {ok {CREATE TABLE t1("x" "b",c)}}
+
+# 2022-02-04
+# Do not complain about syntax errors in the schema if
+# in PRAGMA writable_schema=ON mode.
+#
+reset_db
+do_execsql_test 23.0 {
+  CREATE TABLE t1(a INT, b REAL, c TEXT, d BLOB, e ANY);
+  CREATE INDEX t1abx ON t1(a, b, a+b) WHERE c IS NOT NULL;
+  CREATE VIEW t2 AS SELECT a+10, b*5.0, xyz FROM t1; -- unknown column "xyz"
+  CREATE TABLE schema_copy(name TEXT, sql TEXT);
+  INSERT INTO schema_copy(name,sql) SELECT name, sql FROM sqlite_schema WHERE sql IS NOT NULL;
+} {}
+do_catchsql_test 23.1 {
+  ALTER TABLE t1 RENAME COLUMN e TO eeee;
+} {1 {error in view t2: no such column: xyz}}
+do_execsql_test 23.2 {
+  SELECT name, sql FROM sqlite_master
+    EXCEPT SELECT name, sql FROM schema_copy;
+} {}
+do_execsql_test 23.3 {
+  BEGIN;
+  PRAGMA writable_schema=ON;
+  ALTER TABLE t1 RENAME COLUMN e TO eeee;
+  PRAGMA writable_schema=OFF;
+  SELECT name FROM sqlite_master
+     WHERE (name, sql) NOT IN (SELECT name, sql FROM schema_copy);
+  ROLLBACK;
+} {t1}
+do_execsql_test 23.10 {
+  DROP VIEW t2;
+  CREATE TRIGGER r3 AFTER INSERT ON t1 BEGIN
+    INSERT INTO t3(x,y) VALUES(new.a, new.b);
+    INSERT INTO t4(p) VALUES(new.c);    -- no such table "t4"
+  END;
+  DELETE FROM schema_copy;
+  INSERT INTO schema_copy(name,sql) SELECT name, sql FROM sqlite_schema WHERE sql IS NOT NULL;
+} {}
+do_catchsql_test 23.11 {
+  ALTER TABLE t1 RENAME COLUMN e TO eeee;
+} {1 {error in trigger r3: no such table: main.t3}}
+do_execsql_test 23.12 {
+  SELECT name, sql FROM sqlite_master
+    EXCEPT SELECT name, sql FROM schema_copy;
+} {}
+do_execsql_test 23.13 {
+  BEGIN;
+  PRAGMA writable_schema=ON;
+  ALTER TABLE t1 RENAME COLUMN e TO eeee;
+  PRAGMA writable_schema=OFF;
+  SELECT name FROM sqlite_master
+     WHERE (name, sql) NOT IN (SELECT name, sql FROM schema_copy);
+  ROLLBACK;
+} {t1}
+do_execsql_test 23.20 {
+  CREATE TABLE t4(id INTEGER PRIMARY KEY, c1 INT, c2 INT);
+  CREATE VIEW t4v1 AS SELECT id, c1, c99 FROM t4;
+  DELETE FROM schema_copy;
+  INSERT INTO schema_copy SELECT name, sql FROM sqlite_schema;
+  BEGIN;
+  PRAGMA writable_schema=ON;
+  ALTER TABLE t4 RENAME to t4new;
+  SELECT name FROM sqlite_schema WHERE (name,sql) NOT IN (SELECT * FROM schema_copy);
+  ROLLBACK;
+} {t4new}
+
+finish_test
diff --git a/test/altercorrupt.test b/test/altercorrupt.test
new file mode 100644
index 0000000000000000000000000000000000000000..f24cb309a33b71281f8ace482f7a99202ffe39f3
--- /dev/null
+++ b/test/altercorrupt.test
@@ -0,0 +1,181 @@
+# 2019-01-11
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix altercorrupt
+
+# If SQLITE_OMIT_ALTERTABLE is defined, omit this file.
+ifcapable !altertable {
+  finish_test
+  return
+}
+
+database_may_be_corrupt
+
+#--------------------------------------------------------------------------
+reset_db
+do_test 1.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 24576 pagesize 4096 filename crash-685346d89b5e5f.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 06   .....@  ........
+|     32: 00 00 63 00 00 05 f0 00 00 00 00 04 10 00 00 04   ..c.............
+|     48: 00 00 00 00 00 00 0f f0 00 00 00 01 00 00 00 00   ................
+|     64: 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|     96: 00 00 00 00 0d 0f f8 00 05 0e cf 00 0f 79 0f d3   .............y..
+|    112: 0f 2e 0e f3 0e cf 00 00 00 00 00 00 00 00 00 00   ................
+|   3776: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 22   ................
+|   3792: 05 06 17 11 11 01 31 74 61 62 6c 65 74 34 74 34   ......1tablet4t4
+|   3808: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 74 34   .CREATE TABLE t4
+|   3824: 28 7a 29 39 04 06 17 11 11 01 5f 74 61 62 6c 65   (z)9......_table
+|   3840: 74 33 74 33 05 43 52 45 41 54 45 20 54 41 42 4c   t3t3.CREATE TABL
+|   3856: 45 20 74 33 28 78 20 49 4e 54 45 47 45 52 20 50   E t3(x INTEGER P
+|   3872: 52 49 4d 41 52 59 20 4b 45 59 2c 20 79 29 49 03   RIMARY KEY, y)I.
+|   3888: 06 17 11 11 01 7f 74 61 62 6c 65 74 32 74 32 04   ......tablet2t2.
+|   3904: 43 52 45 41 54 45 20 54 41 42 4c 45 20 74 32 28   CREATE TABLE t2(
+|   3920: 61 2c 62 2c 63 20 50 52 49 4d 41 52 59 20 4b 45   a,b,c PRIMARY KE
+|   3936: 59 2c 20 64 2c 20 65 2c 20 66 29 20 57 49 54 48   Y, d, e, f) WITH
+|   3952: 4f 55 54 20 52 4f 57 49 44 58 03 07 17 11 11 01   OUT ROWIDX......
+|   3968: 81 1b 74 61 62 6c 65 74 31 74 31 02 43 52 45 41   ..tablet1t1.CREA
+|   3984: 54 45 20 54 41 42 4c 45 20 74 31 28 61 2c 62 2c   TE TABLE t1(a,b,
+|   4000: 63 20 41 53 20 28 2d 62 29 20 56 49 52 54 55 41   c AS (-b) VIRTUA
+|   4016: 4c 2c 64 20 43 48 45 43 4b 28 64 3e 35 29 2c 65   L,d CHECK(d>5),e
+|   4032: 20 55 4e 49 51 55 45 2c 20 66 20 41 53 20 28 2b    UNIQUE, f AS (+
+|   4048: 62 29 29 23 02 06 17 37 11 01 00 69 6e 64 65 78   b))#...7...index
+|   4064: 73 71 6c 69 74 65 5f 61 75 74 6f 69 6e 64 65 78   sqlite_autoindex
+|   4080: 5f 74 31 5f 31 74 31 03 00 00 00 08 00 00 00 00   _t1_1t1.........
+| page 2 offset 4096
+|      0: 0d 00 00 00 0a 0f 93 00 0f f6 0f eb 0f e0 0f d5   ................
+|     16: 0f ca 0f 8f 0f b4 0f a9 0f 9e 0f 93 00 00 00 00   ................
+|   3984: 00 00 00 09 0a 05 01 01 01 01 0a 64 6e 14 09 09   ...........dn...
+|   4000: 05 01 01 01 01 09 5a 6d 12 09 08 05 01 01 01 01   ......Zm........
+|   4016: 08 50 6c 10 09 07 05 01 01 01 01 07 46 6b 0e 09   .Pl.........Fk..
+|   4032: 06 05 01 01 01 01 06 3c 6a 0c 09 05 05 01 01 01   .......<j.......
+|   4048: 01 05 32 69 0a 09 04 05 01 01 01 01 04 28 68 08   ..2i.........(h.
+|   4064: 09 03 05 01 01 01 01 03 1e 67 06 09 02 05 01 01   .........g......
+|   4080: 01 01 02 14 66 04 08 01 05 09 01 01 01 0a 65 02   ....f.........e.
+| page 3 offset 8192
+|      0: 0a 00 00 00 0a 0f c5 00 0f fb 0f f5 0f ef 0f e9   ................
+|     16: 0f e3 0f dd 0f d7 0f d1 0f cb 0f c5 00 00 00 00   ................
+|   4032: 00 00 00 00 00 05 03 01 01 14 0a 05 03 01 01 12   ................
+|   4048: 09 05 03 01 01 10 08 05 03 01 01 0e 07 05 03 01   ................
+|   4064: 01 0c 06 05 03 01 01 0a 05 05 03 01 01 08 04 05   ................
+|   4080: 03 01 01 06 03 05 03 01 01 04 02 04 03 01 09 02   ................
+| page 4 offset 12288
+|      0: 0a 00 00 00 0a 0f 75 00 0f 75 0f 83 0f 91 0f 9f   ......u..u......
+|     16: 0f ad 0f bb 0f 00 00 00 00 00 00 00 00 00 00 00   ................
+|   3952: 00 00 00 00 00 0d 07 01 01 01 01 01 01 9c 0a 64   ...............d
+|   3968: 6e 14 64 0d 07 02 01 01 01 01 01 a6 09 5a 6d 12   n.d..........Zm.
+|   3984: 5a 0d 07 01 01 01 01 01 01 b0 08 50 6c 10 50 0d   Z..........Pl.P.
+|   4000: 07 01 01 01 01 01 01 ba 07 46 6b 0e 46 0d 07 01   .........Fk.F...
+|   4016: 01 01 01 01 01 c4 06 3c 6a 0c 3c 0d 07 01 01 01   .......<j.<.....
+|   4032: 01 01 01 ce 05 32 69 0a 32 0d 07 01 01 01 01 01   .....2i.2.......
+|   4048: 01 d8 04 28 68 08 28 0d 07 01 01 01 01 01 01 e2   ...(h.(.........
+|   4064: 03 1e 67 06 1e 0d 07 01 01 01 01 01 01 ec 02 14   ..g.............
+|   4080: 66 04 14 0c 07 01 09 01 01 01 01 f6 0a 65 02 0a   f............e..
+| page 5 offset 16384
+|      0: 0d 00 00 00 03 0f e9 00 0f e9 0f fb 0f f6 00 00   ................
+|     16: 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 03 ff ff ff ff ff ff   ................
+|   4080: ff ff 9c 03 00 00 03 64 03 00 00 03 01 03 00 00   .......d........
+| page 6 offset 20480
+|      0: 0d 00 00 00 00 10 00 00 00 00 00 00 00 00 00 00   ................
+| end crash-685346d89b5e5f.db
+}]} {}
+
+do_catchsql_test 1.1 {
+  ALTER TABLE t2 DROP COLUMN e;
+  ALTER TABLE t1 DROP COLUMN f;
+} {1 {database disk image is malformed}}
+
+
+#--------------------------------------------------------------------------
+reset_db
+do_test 2.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 24576 pagesize 4096 filename crash-0572db8f391431.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 06   .....@  ........
+|     32: 00 00 63 00 10 05 f0 00 00 00 00 04 10 00 00 04   ..c.............
+|     48: 00 00 00 00 00 00 0f f0 00 00 00 00 00 00 00 00   ................
+|     96: 00 00 00 00 0d 0f f8 00 05 0e cf 00 0f 79 0f d3   .............y..
+|    112: 0f 2e 0e f3 0e cf 00 00 00 00 00 00 00 00 00 00   ................
+|   3776: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 22   ................
+|   3792: 05 06 17 11 11 01 31 74 61 62 6c 65 74 34 74 34   ......1tablet4t4
+|   3808: 06 43 52 45 41 54 45 20 54 41 42 4c 45 20 74 34   .CREATE TABLE t4
+|   3824: 28 7a 29 39 04 06 17 11 11 01 5f 74 61 62 6c 65   (z)9......_table
+|   3840: 74 33 74 33 05 43 52 45 41 54 45 20 54 41 42 4c   t3t3.CREATE TABL
+|   3856: 45 20 74 33 28 78 20 49 4e 54 55 47 45 52 20 50   E t3(x INTUGER P
+|   3872: 52 49 4d 41 52 59 20 4b 45 59 2c 20 79 29 49 03   RIMARY KEY, y)I.
+|   3888: 06 17 11 11 01 7f 74 61 62 6c 65 74 32 74 32 04   ......tablet2t2.
+|   3904: 43 52 45 41 54 45 20 54 41 42 4c 45 20 74 32 28   CREATE TABLE t2(
+|   3920: 61 2c 62 2c 63 20 50 52 49 4d 41 52 59 20 4b 45   a,b,c PRIMARY KE
+|   3936: 59 2c 20 64 2c 20 65 2c 20 66 29 20 57 49 54 48   Y, d, e, f) WITH
+|   3952: 4f 55 54 20 52 4f 57 49 44 58 05 07 17 11 11 01   OUT ROWIDX......
+|   3968: 81 1b 74 61 62 6c 65 74 31 74 31 02 43 52 45 41   ..tablet1t1.CREA
+|   3984: 54 45 20 54 41 42 4c 45 20 74 31 28 61 2c 62 2c   TE TABLE t1(a,b,
+|   4000: 63 20 41 53 20 28 2d 62 29 20 56 49 52 54 55 41   c AS (-b) VIRTUA
+|   4016: 4c 2c 64 20 43 48 45 43 4b 28 64 3e 35 29 2c 65   L,d CHECK(d>5),e
+|   4032: 20 55 4e 49 51 55 45 2c 20 66 20 41 53 20 28 2b    UNIQUE, f AS (+
+|   4048: 62 29 29 23 02 06 17 37 11 01 00 69 6e 64 65 78   b))#...7...index
+|   4064: 73 71 6c 69 74 65 5f 61 75 74 6f 69 6e 64 65 78   sqlite_autoindex
+|   4080: 5f 74 31 5f 31 84 31 03 01 00 00 08 00 00 00 00   _t1_1.1.........
+| page 2 offset 4096
+|      0: 0d 00 00 00 0a 0f 93 00 0f f6 0f eb 0f e0 0f d5   ................
+|     16: 0f ca 0f 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   3984: 00 00 00 09 0a 05 01 01 01 01 0a 64 6e 14 09 09   ...........dn...
+|   4000: 05 01 01 01 01 09 5a 6d 12 09 08 05 01 00 f1 01   ......Zm........
+|   4016: 08 50 6c 10 09 07 05 01 01 01 01 07 46 6b 0e 09   .Pl.........Fk..
+|   4032: 06 05 01 00 f1 01 06 3c 6a 0c 09 05 05 01 01 01   .......<j.......
+|   4048: 01 05 32 69 0a 09 04 05 01 01 01 01 04 28 68 08   ..2i.........(h.
+|   4064: 57 03 05 01 01 01 01 03 1e 67 06 09 02 05 01 01   W........g......
+|   4080: 01 01 02 14 66 04 08 01 05 09 01 01 01 0a 65 02   ....f.........e.
+| page 3 offset 8192
+|      0: 09 ff ff ff fa 0f c5 00 0f fb 0f f5 0f ef 0f e9   ................
+|     16: 0f e3 0f dd 0f d7 00 00 00 00 00 00 00 00 00 00   ................
+|   4032: 00 00 00 00 00 05 03 01 01 14 0a 05 03 01 01 12   ................
+|   4048: 09 05 03 01 01 10 08 05 03 01 01 0e 07 05 03 01   ................
+|   4064: 01 0c 06 05 03 01 01 0a 05 05 03 01 01 08 04 05   ................
+|   4080: 03 01 01 06 03 05 03 01 01 04 02 04 03 01 09 02   ................
+| page 4 offset 12288
+|      0: 0a 00 00 00 0a 0f 75 00 0f 75 0f 83 0f 91 0f 9f   ......u..u......
+|     16: 0f ad 0f bb 0f 00 00 00 00 00 01 00 00 00 00 00   ................
+|   3952: 00 00 00 00 00 0d 07 01 01 01 01 01 01 9c 0a 64   ...............d
+|   3968: 6e 14 64 0d 07 02 01 01 01 01 01 a6 09 5a 6d 12   n.d..........Zm.
+|   3984: 5a 0d 07 01 01 01 01 d4 01 b0 08 50 6c 10 50 0d   Z..........Pl.P.
+|   4000: 07 01 01 01 01 01 01 ba 07 46 6b 0e 46 0d 07 00   .........Fk.F...
+|   4016: 01 01 01 01 01 c4 06 3c 6a 0c 3c 0d 07 01 01 01   .......<j.<.....
+|   4032: 01 01 01 ce 05 32 69 0a 32 0d 07 01 01 01 01 01   .....2i.2.......
+|   4048: 01 d8 04 28 68 08 28 0d 07 01 01 01 01 01 01 e2   ...(h.(.........
+|   4064: 03 1e 67 06 1e 0d 07 01 01 01 01 01 01 ec 02 14   ..g.............
+|   4080: 66 04 14 0c 07 01 09 01 01 00 f1 f6 0a 65 02 0a   f............e..
+| page 5 offset 16384
+|      0: 0d 00 00 00 03 0f e9 00 0f e9 0f fb 0f f6 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 03 ff ff ff ff ff ff   ................
+|   4080: ff ff 9c 03 00 00 03 64 03 00 01 03 01 03 00 00   .......d........
+| page 6 offset 20480
+|      0: 0d 00 10 00 00 10 01 00 00 00 00 00 00 00 00 00   ................
+| end crash-0572db8f391431.db
+}]} {}
+
+do_catchsql_test 2.1 {
+  ALTER TABLE t1 DROP COLUMN a;
+} {1 {database disk image is malformed}}
+
+finish_test
diff --git a/test/alterdropcol.test b/test/alterdropcol.test
new file mode 100644
index 0000000000000000000000000000000000000000..8674e981a33a3ab2bd58f9491ee907631ffff7a7
--- /dev/null
+++ b/test/alterdropcol.test
@@ -0,0 +1,339 @@
+# 2021 February 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix alterdropcol
+
+# If SQLITE_OMIT_ALTERTABLE is defined, omit this file.
+ifcapable !altertable {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b, c);
+  CREATE VIEW v1 AS SELECT * FROM t1;
+
+  CREATE TABLE t2(x INTEGER PRIMARY KEY, y, z UNIQUE);
+  CREATE INDEX t2y ON t2(y);
+
+  CREATE TABLE t3(q, r, s);
+  CREATE INDEX t3rs ON t3(r+s);
+}
+
+do_catchsql_test 1.1 {
+  ALTER TABLE nosuch DROP COLUMN z;
+} {1 {no such table: nosuch}}
+
+do_catchsql_test 1.2 {
+  ALTER TABLE v1 DROP COLUMN c;
+} {1 {cannot drop column from view "v1"}}
+
+ifcapable fts5 {
+  do_execsql_test 1.3.1 {
+    CREATE VIRTUAL TABLE ft1 USING fts5(one, two);
+  }
+  do_catchsql_test 1.3.2 {
+    ALTER TABLE ft1 DROP COLUMN two;
+  } {1 {cannot drop column from virtual table "ft1"}}
+}
+
+do_catchsql_test 1.4 {
+  ALTER TABLE sqlite_schema DROP COLUMN sql;
+} {1 {table sqlite_master may not be altered}}
+
+do_catchsql_test 1.5 {
+  ALTER TABLE t1 DROP COLUMN d;
+} {1 {no such column: "d"}}
+
+do_execsql_test 1.6.1 {
+  ALTER TABLE t1 DROP COLUMN b;
+}
+do_execsql_test 1.6.2 {
+  SELECT sql FROM sqlite_schema WHERE name = 't1'
+} {{CREATE TABLE t1(a, c)}}
+
+do_execsql_test 1.7.1 {
+  ALTER TABLE t1 DROP COLUMN c;
+}
+do_execsql_test 1.7.2 {
+  SELECT sql FROM sqlite_schema WHERE name = 't1'
+} {{CREATE TABLE t1(a)}}
+
+do_catchsql_test 1.7.3 {
+  ALTER TABLE t1 DROP COLUMN a;
+} {1 {cannot drop column "a": no other columns exist}}
+
+
+do_catchsql_test 1.8 {
+  ALTER TABLE t2 DROP COLUMN z
+} {1 {cannot drop UNIQUE column: "z"}}
+
+do_catchsql_test 1.9 {
+  ALTER TABLE t2 DROP COLUMN x
+} {1 {cannot drop PRIMARY KEY column: "x"}}
+
+do_catchsql_test 1.10 {
+  ALTER TABLE t2 DROP COLUMN y
+} {1 {error in index t2y after drop column: no such column: y}}
+
+do_catchsql_test 1.11 {
+  ALTER TABLE t3 DROP COLUMN s
+} {1 {error in index t3rs after drop column: no such column: s}}
+
+#-------------------------------------------------------------------------
+
+foreach {tn wo} {
+  1 {}
+  2 {WITHOUT ROWID}
+} { eval [string map [list %TN% $tn %WO% $wo] {
+
+  reset_db
+  do_execsql_test 2.%TN%.0 {
+    CREATE TABLE t1(x, y INTEGER PRIMARY KEY, z) %WO% ;
+    INSERT INTO t1 VALUES(1, 2, 3);
+    INSERT INTO t1 VALUES(4, 5, 6);
+    INSERT INTO t1 VALUES(7, 8, 9);
+  }
+  
+  do_execsql_test 2.%TN%.1 {
+    ALTER TABLE t1 DROP COLUMN x;
+    SELECT * FROM t1;
+  } {
+    2 3  5 6  8 9
+  }
+  do_execsql_test 2.%TN%.2 {
+    ALTER TABLE t1 DROP COLUMN z;
+    SELECT * FROM t1;
+  } {
+    2 5 8
+  }
+}]}
+
+#-------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 3.0 {
+  CREATE TABLE t12(a, b, c, CHECK(c>10));
+  CREATE TABLE t13(a, b, c CHECK(c>10));
+}
+do_catchsql_test 3.1 {
+  ALTER TABLE t12 DROP COLUMN c;
+} {1 {error in table t12 after drop column: no such column: c}}
+
+do_catchsql_test 3.2 {
+  ALTER TABLE t13 DROP COLUMN c;
+} {0 {}}
+
+#-------------------------------------------------------------------------
+# Test that generated columns can be dropped. And that other columns from
+# tables that contain generated columns can be dropped.
+#
+foreach {tn wo vs} {
+  1 ""              ""
+  2 ""              VIRTUAL
+  3 ""              STORED
+  4 "WITHOUT ROWID" STORED
+  5 "WITHOUT ROWID" VIRTUAL
+} {
+  reset_db
+
+  do_execsql_test 4.$tn.0 "
+    CREATE TABLE 'my table'(a, b PRIMARY KEY, c AS (a+b) $vs, d) $wo
+  "
+  do_execsql_test 4.$tn.1 {
+    INSERT INTO "my table"(a, b, d) VALUES(1, 2, 'hello');
+    INSERT INTO "my table"(a, b, d) VALUES(3, 4, 'world');
+
+    SELECT * FROM "my table"
+  } {
+    1 2 3 hello
+    3 4 7 world
+  }
+
+  do_execsql_test 4.$tn.2 {
+    ALTER TABLE "my table" DROP COLUMN c;
+  }
+  do_execsql_test 4.$tn.3 {
+    SELECT * FROM "my table"
+  } {
+    1 2 hello
+    3 4 world
+  }
+  
+  do_execsql_test 4.$tn.4 "
+    CREATE TABLE x1(a, b, c PRIMARY KEY, d AS (b+c) $vs, e) $wo
+  "
+  do_execsql_test 4.$tn.5 {
+    INSERT INTO x1(a, b, c, e) VALUES(1, 2, 3, 4);
+    INSERT INTO x1(a, b, c, e) VALUES(5, 6, 7, 8);
+    INSERT INTO x1(a, b, c, e) VALUES(9, 10, 11, 12);
+    SELECT * FROM x1;
+  } {
+    1 2 3 5 4
+    5 6 7 13 8
+    9 10 11 21 12
+  }
+
+  do_execsql_test 4.$tn.6 {
+    ALTER TABLE x1 DROP COLUMN a
+  }
+  do_execsql_test 4.$tn.7 {
+    SELECT * FROM x1
+  } {
+    2 3 5 4
+    6 7 13 8
+    10 11 21 12
+  }
+  do_execsql_test 4.$tn.8 {
+    ALTER TABLE x1 DROP COLUMN e
+  }
+  do_execsql_test 4.$tn.9 {
+    SELECT * FROM x1
+  } {
+    2 3 5
+    6 7 13
+    10 11 21
+  }
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 5.0 {
+  CREATE TABLE p1(a PRIMARY KEY, b UNIQUE);
+  CREATE TABLE c1(x, y, z REFERENCES p1(c));
+  CREATE TABLE c2(x, y, z, w REFERENCES p1(b));
+}
+do_execsql_test 5.1 {
+  ALTER TABLE c1 DROP COLUMN z;
+  ALTER TABLE c2 DROP COLUMN z;
+  SELECT sql FROM sqlite_schema WHERE name IN ('c1', 'c2');
+} {
+  {CREATE TABLE c1(x, y)} 
+  {CREATE TABLE c2(x, y, w REFERENCES p1(b))}
+}
+
+do_execsql_test 5.2.1 {
+  CREATE VIEW v1 AS SELECT d, e FROM p1
+}
+do_catchsql_test 5.2.2 {
+  ALTER TABLE c1 DROP COLUMN x
+} {1 {error in view v1: no such column: d}}
+do_execsql_test 5.3.1 {
+  DROP VIEW v1;
+  CREATE VIEW v1 AS SELECT x, y FROM c1;
+}
+do_catchsql_test 5.3.2 {
+  ALTER TABLE c1 DROP COLUMN x
+} {1 {error in view v1 after drop column: no such column: x}}
+
+do_execsql_test 5.4.1 {
+  CREATE TRIGGER tr AFTER INSERT ON c1 BEGIN
+    INSERT INTO p1 VALUES(new.y, new.xyz);
+  END;
+}
+do_catchsql_test 5.4.2 {
+  ALTER TABLE c1 DROP COLUMN y
+} {1 {error in trigger tr: no such column: new.xyz}}
+do_execsql_test 5.5.1 {
+  DROP TRIGGER tr;
+  CREATE TRIGGER tr AFTER INSERT ON c1 BEGIN
+    INSERT INTO p1 VALUES(new.y, new.z);
+  END;
+}
+do_catchsql_test 5.5.2 {
+  ALTER TABLE c1 DROP COLUMN y
+} {1 {error in trigger tr: no such column: new.z}}
+
+# 2021-03-06 dbsqlfuzz crash-419aa525df93db6e463772c686ac6da27b46da9e
+reset_db
+do_catchsql_test 6.0 {
+  CREATE TABLE t1(a,b,c);
+  CREATE TABLE t2(x,y,z);
+  PRAGMA writable_schema=ON;
+  UPDATE sqlite_schema SET sql='CREATE INDEX t1b ON t1(b)' WHERE name='t2';
+  PRAGMA writable_schema=OFF;
+  ALTER TABLE t2 DROP COLUMN z;
+} {1 {database disk image is malformed}}
+reset_db
+do_catchsql_test 6.1 {
+  CREATE TABLE t1(a,b,c);
+  CREATE TABLE t2(x,y,z);
+  PRAGMA writable_schema=ON;
+  UPDATE sqlite_schema SET sql='CREATE VIEW t2(x,y,z) AS SELECT b,a,c FROM t1'
+   WHERE name='t2';
+  PRAGMA writable_schema=OFF;
+  ALTER TABLE t2 DROP COLUMN z;
+} {1 {database disk image is malformed}}
+
+# 2021-04-06 dbsqlfuzz crash-331c5c29bb76257b198f1318eef3288f9624c8ce
+reset_db
+do_execsql_test 7.0 {
+  CREATE TABLE t1(a, b, c, PRIMARY KEY(a COLLATE nocase, a)) WITHOUT ROWID;
+  INSERT INTO t1 VALUES(1, 2, 3);
+  INSERT INTO t1 VALUES(4, 5, 6);
+}
+do_execsql_test 7.1 {
+  ALTER TABLE t1 DROP COLUMN c;                
+}
+do_execsql_test 7.2 {
+  SELECT sql FROM sqlite_schema;
+} {{CREATE TABLE t1(a, b, PRIMARY KEY(a COLLATE nocase, a)) WITHOUT ROWID}}
+do_execsql_test 7.3 {
+  SELECT * FROM t1;
+} {1 2 4 5}
+
+reset_db
+do_execsql_test 8.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+  PRAGMA writable_schema = 1;
+  UPDATE sqlite_schema 
+  SET sql = 'CREATE TABLE t1(a INTEGER PRIMARY KEY AUTOINCREMENT, b)'
+}
+db close
+sqlite3 db test.db
+do_execsql_test 8.1 {
+  ALTER TABLE t1 DROP COLUMN b;                
+}
+do_execsql_test 8.2 {
+  SELECT sql FROM sqlite_schema;
+} {{CREATE TABLE t1(a INTEGER PRIMARY KEY AUTOINCREMENT)}}
+
+#-------------------------------------------------------------------------
+
+foreach {tn wo} {
+  1 {}
+  2 {WITHOUT ROWID}
+} {
+  reset_db
+  do_execsql_test 9.$tn.0 "
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c) $wo;
+  "
+  do_execsql_test 9.$tn.1 {
+    WITH s(i) AS (
+        SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<50000
+    )
+    INSERT INTO t1(a, b, c) SELECT i, 123, 456 FROM s;
+  }
+  do_execsql_test 9.$tn.2 {
+    ALTER TABLE t1 DROP COLUMN b;
+  }
+
+  do_execsql_test 9.$tn.3 {
+    SELECT count(*), c FROM t1 GROUP BY c;
+  } {50000 456}
+}
+
+
+
+finish_test
diff --git a/test/alterdropcol2.test b/test/alterdropcol2.test
new file mode 100644
index 0000000000000000000000000000000000000000..d60e7db44149e1ea717b7be575a332c958967c61
--- /dev/null
+++ b/test/alterdropcol2.test
@@ -0,0 +1,222 @@
+# 2021 February 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix alterdropcol2
+
+# If SQLITE_OMIT_ALTERTABLE is defined, omit this file.
+ifcapable !altertable {
+  finish_test
+  return
+}
+
+# EVIDENCE-OF: R-58318-35349 The DROP COLUMN syntax is used to remove an
+# existing column from a table.
+do_execsql_test 1.0 {
+  CREATE TABLE t1(c, b, a, PRIMARY KEY(b, a)) WITHOUT ROWID;
+  INSERT INTO t1 VALUES(1, 2, 3), (4, 5, 6);
+}
+do_execsql_test 1.1 {
+  ALTER TABLE t1 DROP c;
+}
+
+# EVIDENCE-OF: The DROP COLUMN command removes the named column from the table,
+# and also rewrites the entire table to purge the data associated with that
+# column.  
+do_execsql_test 1.2.1 {
+  SELECT * FROM t1;
+} {2 3   5 6}
+
+do_execsql_test 1.2.2 {
+  SELECT sql FROM sqlite_schema;
+} {
+  {CREATE TABLE t1(b, a, PRIMARY KEY(b, a)) WITHOUT ROWID}
+}
+
+proc do_atdc_error_test {tn schema atdc error} {
+  reset_db
+  execsql $schema
+  uplevel [list do_catchsql_test $tn $atdc [list 1 [string trim $error]]]
+}
+
+#-------------------------------------------------------------------------
+# Test cases 2.* attempt to verify the following:
+#
+# EVIDENCE-OF: R-24098-10282 The DROP COLUMN command only works if the column
+# is not referenced by any other parts of the schema and is not a PRIMARY KEY
+# and does not have a UNIQUE constraint.
+#
+
+# EVIDENCE-OF: R-52436-31752 The column is a PRIMARY KEY or part of one.
+#
+do_atdc_error_test 2.1.1 {
+  CREATE TABLE x1(a PRIMARY KEY, b, c);
+} { 
+  ALTER TABLE x1 DROP COLUMN a 
+} {
+  cannot drop PRIMARY KEY column: "a"
+}
+do_atdc_error_test 2.1.2 {
+  CREATE TABLE x1(a,b,c,d,e, PRIMARY KEY(b,c,d));
+} { 
+  ALTER TABLE x1 DROP COLUMN c
+} {
+  cannot drop PRIMARY KEY column: "c"
+}
+
+# EVIDENCE-OF: R-43412-16016 The column has a UNIQUE constraint.
+#
+do_atdc_error_test 2.2.1 {
+  CREATE TABLE x1(a PRIMARY KEY, b, c UNIQUE);
+} { 
+  ALTER TABLE x1 DROP COLUMN c 
+} {
+  cannot drop UNIQUE column: "c"
+}
+do_atdc_error_test 2.2.2 {
+  CREATE TABLE x1(a PRIMARY KEY, b, c, UNIQUE(b, c));
+} { 
+  ALTER TABLE x1 DROP COLUMN c 
+} {
+  error in table x1 after drop column: no such column: c
+}
+
+# EVIDENCE-OF: R-46731-08965 The column is indexed.
+#
+do_atdc_error_test 2.3.1 {
+  CREATE TABLE 'one two'('x y', 'z 1', 'a b');
+  CREATE INDEX idx ON 'one two'('z 1');
+} { 
+  ALTER TABLE 'one two' DROP COLUMN 'z 1' 
+} {
+  error in index idx after drop column: no such column: z 1
+}
+do_atdc_error_test 2.3.2 {
+  CREATE TABLE x1(a, b, c);
+  CREATE INDEX idx ON x1(a);
+} { 
+  ALTER TABLE x1 DROP COLUMN a;
+} {
+  error in index idx after drop column: no such column: a
+}
+
+# EVIDENCE-OF: R-46731-08965 The column is indexed.
+#
+do_atdc_error_test 2.4.1 {
+  CREATE TABLE x1234(a, b, c PRIMARY KEY) WITHOUT ROWID;
+  CREATE INDEX i1 ON x1234(b) WHERE ((a+5) % 10)==0;
+} { 
+  ALTER TABLE x1234 DROP a
+} {
+  error in index i1 after drop column: no such column: a
+}
+
+# EVIDENCE-OF: R-47838-03249 The column is named in a table or column
+# CHECK constraint not associated with the column being dropped.
+#
+do_atdc_error_test 2.5.1 {
+  CREATE TABLE x1234(a, b, c PRIMARY KEY, CHECK(((a+5)%10)!=0)) WITHOUT ROWID;
+} { 
+  ALTER TABLE x1234 DROP a
+} {
+  error in table x1234 after drop column: no such column: a
+}
+
+# EVIDENCE-OF: R-55640-01652 The column is used in a foreign key constraint.
+#
+do_atdc_error_test 2.6.1 {
+  CREATE TABLE p1(x, y UNIQUE);
+  CREATE TABLE c1(u, v, FOREIGN KEY (v) REFERENCES p1(y))
+} { 
+  ALTER TABLE c1 DROP v
+} {
+  error in table c1 after drop column: unknown column "v" in foreign key definition
+}
+
+# EVIDENCE-OF: R-20795-39479 The column is used in the expression of a 
+# generated column.
+do_atdc_error_test 2.7.1 {
+  CREATE TABLE c1(u, v, w AS (u+v));
+} { 
+  ALTER TABLE c1 DROP v
+} {
+  error in table c1 after drop column: no such column: v
+}
+do_atdc_error_test 2.7.2 {
+  CREATE TABLE c1(u, v, w AS (u+v) STORED);
+} { 
+  ALTER TABLE c1 DROP u
+} {
+  error in table c1 after drop column: no such column: u
+}
+
+# EVIDENCE-OF: R-01515-49025 The column appears in a trigger or view.
+#
+do_atdc_error_test 2.8.1 {
+  CREATE TABLE log(l);
+  CREATE TABLE c1(u, v, w);
+  CREATE TRIGGER tr1 AFTER INSERT ON c1 BEGIN
+    INSERT INTO log VALUES(new.w);
+  END;
+} { 
+  ALTER TABLE c1 DROP w
+} {
+  error in trigger tr1 after drop column: no such column: new.w
+}
+do_atdc_error_test 2.8.2 {
+  CREATE TABLE c1(u, v, w);
+  CREATE VIEW v1 AS SELECT u, v, w FROM c1;
+} { 
+  ALTER TABLE c1 DROP w
+} {
+  error in view v1 after drop column: no such column: w
+}
+do_atdc_error_test 2.8.3 {
+  CREATE TABLE c1(u, v, w);
+  CREATE VIEW v1 AS SELECT * FROM c1 WHERE w IS NOT NULL;
+} { 
+  ALTER TABLE c1 DROP w
+} {
+  error in view v1 after drop column: no such column: w
+}
+
+#-------------------------------------------------------------------------
+# Verify that a column that is part of a CHECK constraint may be dropped
+# if the CHECK constraint was specified as part of the column definition.
+#
+
+# STALE-EVIDENCE: R-60924-11170 However, the column being deleted can be used in a
+# column CHECK constraint because the column CHECK constraint is dropped
+# together with the column itself.
+do_execsql_test 3.0 {
+  CREATE TABLE yyy(q, w, e CHECK (e > 0), r);
+  INSERT INTO yyy VALUES(1,1,1,1), (2,2,2,2);
+
+  CREATE TABLE zzz(q, w, e, r, CHECK (e > 0));
+  INSERT INTO zzz VALUES(1,1,1,1), (2,2,2,2);
+}
+do_catchsql_test 3.1.1 {
+  INSERT INTO yyy VALUES(0,0,0,0);
+} {1 {CHECK constraint failed: e > 0}}
+do_catchsql_test 3.1.2 {
+  INSERT INTO yyy VALUES(0,0,0,0);
+} {1 {CHECK constraint failed: e > 0}}
+
+do_execsql_test 3.2.1 {
+  ALTER TABLE yyy DROP e;
+}
+do_catchsql_test 3.2.2 {
+  ALTER TABLE zzz DROP e;
+} {1 {error in table zzz after drop column: no such column: e}}
+
+finish_test
diff --git a/test/alterfault.test b/test/alterfault.test
new file mode 100644
index 0000000000000000000000000000000000000000..b6b42973efe727d84d5ba6790e3ebd73688386f5
--- /dev/null
+++ b/test/alterfault.test
@@ -0,0 +1,41 @@
+# 2021 November 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix alterfault
+
+# If SQLITE_OMIT_ALTERTABLE is defined, omit this file.
+ifcapable !altertable {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a);                 
+}
+faultsim_save_and_close
+
+do_faultsim_test 1.1 -faults oom* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql {
+    ALTER TABLE t1 ADD COLUMN b CHECK (a!=1)
+  }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+
+
+finish_test
diff --git a/test/alterlegacy.test b/test/alterlegacy.test
new file mode 100644
index 0000000000000000000000000000000000000000..dfa171646718b636b33b68a50157d365e97cc848
--- /dev/null
+++ b/test/alterlegacy.test
@@ -0,0 +1,469 @@
+# 2018 September 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix alterlegacy
+
+# If SQLITE_OMIT_ALTERTABLE is defined, omit this file.
+ifcapable !altertable {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  PRAGMA legacy_alter_table = 1;
+  CREATE TABLE t1(a, b, CHECK(t1.a != t1.b));
+  CREATE TABLE t2(a, b);
+  CREATE INDEX t2expr ON t2(a) WHERE t2.b>0;
+}
+
+do_execsql_test 1.1 {
+  SELECT sql FROM sqlite_master
+} {
+  {CREATE TABLE t1(a, b, CHECK(t1.a != t1.b))}
+  {CREATE TABLE t2(a, b)}
+  {CREATE INDEX t2expr ON t2(a) WHERE t2.b>0}
+}
+
+# Legacy behavior is to corrupt the schema in this case, as the table name in
+# the CHECK constraint is incorrect after "t1" is renamed. This version is
+# slightly different - it rejects the change and rolls back the transaction.
+do_catchsql_test 1.2 {
+  ALTER TABLE t1 RENAME TO t1new;
+} {1 {error in table t1new after rename: no such column: t1.a}}
+
+do_execsql_test 1.3 {
+  CREATE TABLE t3(c, d);
+  ALTER TABLE t3 RENAME TO t3new;
+  DROP TABLE t3new;
+}
+
+do_execsql_test 1.4 {
+  SELECT sql FROM sqlite_master
+} {
+  {CREATE TABLE t1(a, b, CHECK(t1.a != t1.b))}
+  {CREATE TABLE t2(a, b)}
+  {CREATE INDEX t2expr ON t2(a) WHERE t2.b>0}
+}
+
+
+do_catchsql_test 1.3 {
+  ALTER TABLE t2 RENAME TO t2new;
+} {1 {error in index t2expr after rename: no such column: t2.b}}
+do_execsql_test 1.4 {
+  SELECT sql FROM sqlite_master
+} {
+  {CREATE TABLE t1(a, b, CHECK(t1.a != t1.b))}
+  {CREATE TABLE t2(a, b)}
+  {CREATE INDEX t2expr ON t2(a) WHERE t2.b>0}
+}
+
+
+#-------------------------------------------------------------------------
+reset_db
+ifcapable vtab {
+  register_echo_module db
+
+  do_execsql_test 2.0 {
+    PRAGMA legacy_alter_table = 1;
+    CREATE TABLE abc(a, b, c);
+    INSERT INTO abc VALUES(1, 2, 3);
+    CREATE VIRTUAL TABLE eee USING echo('abc');
+    SELECT * FROM eee;
+  } {1 2 3}
+
+  do_execsql_test 2.1 {
+    ALTER TABLE eee RENAME TO fff;
+    SELECT * FROM fff;
+  } {1 2 3}
+
+  db close
+  sqlite3 db test.db
+
+  do_catchsql_test 2.2 {
+    ALTER TABLE fff RENAME TO ggg;
+  } {1 {no such module: echo}}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 3.0 {
+  PRAGMA legacy_alter_table = 1;
+  CREATE TABLE txx(a, b, c);
+  INSERT INTO txx VALUES(1, 2, 3);
+  CREATE VIEW vvv AS SELECT main.txx.a, txx.b, c FROM txx;
+  CREATE VIEW uuu AS SELECT main.one.a, one.b, c FROM txx AS one;
+  CREATE VIEW temp.ttt AS SELECT main.txx.a, txx.b, one.b, main.one.a FROM txx AS one, txx;
+}
+
+do_execsql_test 3.1.1 {
+  SELECT * FROM vvv;
+} {1 2 3}
+do_execsql_test 3.1.2a {
+  ALTER TABLE txx RENAME TO "t xx";
+}
+do_catchsql_test 3.1.2b {
+  SELECT * FROM vvv;
+} {1 {no such table: main.txx}}
+do_execsql_test 3.1.3 {
+  SELECT sql FROM sqlite_master WHERE name='vvv';
+} {{CREATE VIEW vvv AS SELECT main.txx.a, txx.b, c FROM txx}}
+
+
+do_catchsql_test 3.2.1 {
+  SELECT * FROM uuu;
+} {1 {no such table: main.txx}}
+do_execsql_test 3.2.2 {
+  SELECT sql FROM sqlite_master WHERE name='uuu';;
+} {{CREATE VIEW uuu AS SELECT main.one.a, one.b, c FROM txx AS one}}
+
+do_catchsql_test 3.3.1 {
+  SELECT * FROM ttt;
+} {1 {no such table: txx}}
+do_execsql_test 3.3.2 {
+  SELECT sql FROM sqlite_temp_master WHERE name='ttt';
+} {{CREATE VIEW ttt AS SELECT main.txx.a, txx.b, one.b, main.one.a FROM txx AS one, txx}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 4.0 {
+  PRAGMA legacy_alter_table = 1;
+  CREATE table t1(x, y);
+  CREATE table t2(a, b);
+
+  CREATE TRIGGER tr1 AFTER INSERT ON t1 BEGIN
+    SELECT t1.x, * FROM t1, t2;
+    INSERT INTO t2 VALUES(new.x, new.y);
+  END;
+}
+
+do_execsql_test 4.1 {
+  INSERT INTO t1 VALUES(1, 1);
+  ALTER TABLE t1 RENAME TO t11;
+} 
+do_catchsql_test 4.1a {
+  INSERT INTO t11 VALUES(2, 2);
+} {1 {no such table: main.t1}}
+do_execsql_test 4.1b {
+  ALTER TABLE t11 RENAME TO t1;
+  ALTER TABLE t2 RENAME TO t22;
+}
+do_catchsql_test 4.1c {
+  INSERT INTO t1 VALUES(3, 3);
+} {1 {no such table: main.t2}}
+
+proc squish {a} {
+  string trim [regsub -all {[[:space:]][[:space:]]*} $a { }]
+}
+db func squish squish
+do_test 4.2 {
+  execsql { SELECT squish(sql) FROM sqlite_master WHERE name = 'tr1' }
+} [list [squish {
+  CREATE TRIGGER tr1 AFTER INSERT ON "t1" BEGIN
+    SELECT t1.x, * FROM t1, t2;
+    INSERT INTO t2 VALUES(new.x, new.y);
+  END
+}]]
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 5.0 {
+  PRAGMA legacy_alter_table = 1;
+  CREATE TABLE t9(a, b, c);
+  CREATE TABLE t10(a, b, c);
+  CREATE TEMP TABLE t9(a, b, c);
+
+  CREATE TRIGGER temp.t9t AFTER INSERT ON temp.t9 BEGIN
+    INSERT INTO t10 VALUES(new.a, new.b, new.c);
+  END;
+
+  INSERT INTO temp.t9 VALUES(1, 2, 3);
+  SELECT * FROM t10;
+} {1 2 3}
+
+do_execsql_test 5.1 {
+  ALTER TABLE temp.t9 RENAME TO 't1234567890'
+}
+
+do_execsql_test 5.2 {
+  CREATE TABLE t1(a, b);
+  CREATE TABLE t2(a, b);
+  INSERT INTO t1 VALUES(1, 2);
+  INSERT INTO t2 VALUES(3, 4);
+  CREATE VIEW v AS SELECT one.a, one.b, t2.a, t2.b FROM t1 AS one, t2;
+  SELECT * FROM v;
+} {1 2 3 4}
+
+do_execsql_test 5.3 {
+  ALTER TABLE t2 RENAME TO one;
+} {}
+
+do_catchsql_test 5.4 {
+  SELECT  *  FROM v
+} {1 {no such table: main.t2}}
+
+do_execsql_test 5.5 {
+  ALTER TABLE one RENAME TO t2;
+  DROP VIEW v;
+  CREATE VIEW temp.vv AS SELECT one.a, one.b, t2.a, t2.b FROM t1 AS one, t2;
+  SELECT * FROM vv;
+} {1 2 3 4}
+
+do_execsql_test 5.6 {
+  ALTER TABLE t2 RENAME TO one;
+} {}
+do_catchsql_test 5.7 {
+  SELECT  *  FROM vv
+} {1 {no such table: t2}}
+
+#-------------------------------------------------------------------------
+
+ifcapable vtab {
+  register_tcl_module db
+  proc tcl_command {method args} {
+    switch -- $method {
+      xConnect {
+        return "CREATE TABLE t1(a, b, c)"
+      }
+    }
+    return {}
+  }
+  
+  do_execsql_test 6.0 {
+    CREATE VIRTUAL TABLE x1 USING tcl(tcl_command);
+  }
+  
+  do_execsql_test 6.1 {
+    ALTER TABLE x1 RENAME TO x2;
+    SELECT sql FROM sqlite_master WHERE name = 'x2'
+  } {{CREATE VIRTUAL TABLE "x2" USING tcl(tcl_command)}}
+  
+  do_execsql_test 7.1 {
+    CREATE TABLE ddd(db, sql, zOld, zNew, bTemp);
+    INSERT INTO ddd VALUES(
+        'main', 'CREATE TABLE x1(i INTEGER, t TEXT)', 'ddd', NULL, 0
+    ), (
+        'main', 'CREATE TABLE x1(i INTEGER, t TEXT)', NULL, 'eee', 0
+    ), (
+        'main', NULL, 'ddd', 'eee', 0
+    );
+  } {}
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+forcedelete test.db2
+do_execsql_test 8.1 {
+  PRAGMA legacy_alter_table = 1;
+  ATTACH 'test.db2' AS aux;
+  PRAGMA foreign_keys = on;
+  CREATE TABLE aux.p1(a INTEGER PRIMARY KEY, b);
+  CREATE TABLE aux.c1(x INTEGER PRIMARY KEY, y REFERENCES p1(a));
+  INSERT INTO aux.p1 VALUES(1, 1);
+  INSERT INTO aux.p1 VALUES(2, 2);
+  INSERT INTO aux.c1 VALUES(NULL, 2);
+  CREATE TABLE aux.c2(x INTEGER PRIMARY KEY, y REFERENCES c1(a));
+}
+
+do_execsql_test 8.2 {
+  ALTER TABLE aux.p1 RENAME TO ppp;
+}
+
+do_execsql_test 8.2 {
+  INSERT INTO aux.c1 VALUES(NULL, 1);
+  SELECT sql FROM aux.sqlite_master WHERE name = 'c1';
+} {{CREATE TABLE c1(x INTEGER PRIMARY KEY, y REFERENCES "ppp"(a))}}
+
+reset_db
+do_execsql_test 9.0 {
+  PRAGMA legacy_alter_table = 1;
+  CREATE TABLE t1(a, b, c);
+  CREATE VIEW v1 AS SELECT * FROM t2;
+}
+do_execsql_test 9.1 {
+  ALTER TABLE t1 RENAME TO t3;
+} {}
+do_execsql_test 9.1b {
+  ALTER TABLE t3 RENAME TO t1;
+} {}
+do_execsql_test 9.2 {
+  DROP VIEW v1;
+  CREATE TRIGGER tr AFTER INSERT ON t1 BEGIN
+    INSERT INTO t2 VALUES(new.a);
+  END;
+}
+do_execsql_test 9.3 {
+  ALTER TABLE t1 RENAME TO t3;
+} {}
+
+forcedelete test.db2
+do_execsql_test 9.4 {
+  ALTER TABLE t3 RENAME TO t1;
+  DROP TRIGGER tr;
+
+  ATTACH 'test.db2' AS aux;
+  CREATE TRIGGER tr AFTER INSERT ON t1 WHEN new.a IS NULL BEGIN SELECT 1, 2, 3; END;
+
+  CREATE TABLE aux.t1(x);
+  CREATE TEMP TRIGGER tr AFTER INSERT ON aux.t1 BEGIN SELECT 1, 2, 3; END;
+}
+do_execsql_test 9.5 {
+  ALTER TABLE main.t1 RENAME TO t3;
+}
+do_execsql_test 9.6 {
+  SELECT sql FROM sqlite_temp_master;
+  SELECT sql FROM sqlite_master WHERE type='trigger';
+} {
+  {CREATE TRIGGER tr AFTER INSERT ON aux.t1 BEGIN SELECT 1, 2, 3; END}
+  {CREATE TRIGGER tr AFTER INSERT ON "t3" WHEN new.a IS NULL BEGIN SELECT 1, 2, 3; END}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+ifcapable fts5 {
+  do_execsql_test 10.0 {
+    PRAGMA legacy_alter_table = 1;
+    CREATE VIRTUAL TABLE fff USING fts5(x, y, z);
+  }
+
+  do_execsql_test 10.1 {
+    BEGIN;
+      INSERT INTO fff VALUES('a', 'b', 'c');
+      ALTER TABLE fff RENAME TO ggg;
+    COMMIT;
+  }
+
+  do_execsql_test 10.2 {
+    SELECT * FROM ggg;
+  } {a b c}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+forcedelete test.db2
+db func trigger trigger
+set ::trigger [list]
+proc trigger {args} {
+  lappend ::trigger $args
+}
+do_execsql_test 11.0 {
+  PRAGMA legacy_alter_table = 1;
+  ATTACH 'test.db2' AS aux;
+  CREATE TABLE aux.t1(a, b, c);
+  CREATE TABLE main.t1(a, b, c);
+  CREATE TEMP TRIGGER tr AFTER INSERT ON aux.t1 BEGIN
+    SELECT trigger(new.a, new.b, new.c);
+  END;
+}
+
+do_execsql_test 11.1 {
+  INSERT INTO main.t1 VALUES(1, 2, 3);
+  INSERT INTO aux.t1 VALUES(4, 5, 6);
+}
+do_test 11.2 { set ::trigger } {{4 5 6}}
+
+do_execsql_test 11.3 {
+  SELECT name, tbl_name FROM sqlite_temp_master;
+} {tr t1}
+
+do_execsql_test 11.4 {
+  ALTER TABLE main.t1 RENAME TO t2;
+  SELECT name, tbl_name FROM sqlite_temp_master;
+} {tr t1}
+
+do_execsql_test 11.5 {
+  ALTER TABLE aux.t1 RENAME TO t2;
+  SELECT name, tbl_name FROM sqlite_temp_master;
+} {tr t2}
+
+do_execsql_test 11.6 {
+  INSERT INTO aux.t2 VALUES(7, 8, 9);
+}
+do_test 11.7 { set ::trigger } {{4 5 6} {7 8 9}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 12.0 {
+  PRAGMA legacy_alter_table = 1;
+  CREATE TABLE t1(a);
+  CREATE TABLE t2(w);
+  CREATE TRIGGER temp.r1 AFTER INSERT ON main.t2 BEGIN
+    INSERT INTO t1(a) VALUES(new.w);
+  END;
+  CREATE TEMP TABLE t2(x);
+}
+
+do_execsql_test 12.1 {
+  ALTER TABLE main.t2 RENAME TO t3;
+}
+
+do_execsql_test 12.2 {
+  INSERT INTO t3 VALUES('WWW');
+  SELECT * FROM t1;
+} {WWW}
+
+
+#-------------------------------------------------------------------------
+reset_db
+
+ifcapable rtree {
+  do_execsql_test 14.0 {
+    PRAGMA legacy_alter_table = 1;
+    CREATE VIRTUAL TABLE rt USING rtree(id, minx, maxx, miny, maxy);
+
+    CREATE TABLE "mytable" ( "fid" INTEGER PRIMARY KEY, "geom" BLOB);
+
+    CREATE TRIGGER tr1 AFTER UPDATE OF "geom" ON "mytable" 
+          WHEN OLD."fid" = NEW."fid" AND NEW."geom" IS NULL BEGIN 
+      DELETE FROM rt WHERE id = OLD."fid"; 
+    END;
+
+    INSERT INTO mytable VALUES(1, X'abcd');
+  }
+
+  do_execsql_test 14.1 {
+    UPDATE mytable SET geom = X'1234'
+  }
+
+  do_execsql_test 14.2 {
+    ALTER TABLE mytable RENAME TO mytable_renamed;
+  }
+
+  do_execsql_test 14.3 {
+    CREATE TRIGGER tr2 AFTER INSERT ON mytable_renamed BEGIN
+      DELETE FROM rt WHERE id=(SELECT min(id) FROM rt);
+    END;
+  }
+
+  do_execsql_test 14.4 {
+    ALTER TABLE mytable_renamed RENAME TO mytable2;
+  }
+}
+
+reset_db
+do_execsql_test 14.5 {
+  PRAGMA legacy_alter_table = 1;
+  CREATE TABLE t1(a, b, c);
+  CREATE VIEW v1 AS SELECT * FROM t1;
+  CREATE TRIGGER xyz AFTER INSERT ON t1 BEGIN
+    SELECT a, b FROM v1;
+  END;
+}
+do_execsql_test 14.6 {
+  ALTER TABLE t1 RENAME TO tt1;
+}
+
+
+finish_test
diff --git a/test/altermalloc.test b/test/altermalloc.test
new file mode 100644
index 0000000000000000000000000000000000000000..22ea15846375e995fb4b233f8f3968a5f09ff9d1
--- /dev/null
+++ b/test/altermalloc.test
@@ -0,0 +1,71 @@
+# 2005 September 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the ALTER TABLE statement and
+# specifically out-of-memory conditions within that command.
+#
+# $Id: altermalloc.test,v 1.10 2008/10/30 17:21:13 danielk1977 Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If SQLITE_OMIT_ALTERTABLE is defined, omit this file.
+ifcapable !altertable {
+  finish_test
+  return
+}
+
+source $testdir/malloc_common.tcl
+
+do_malloc_test altermalloc-1 -tclprep {
+  db close
+} -tclbody {
+  if {[catch {sqlite3 db test.db}]} {
+    error "out of memory"
+  }
+  sqlite3_db_config_lookaside db 0 0 0
+  sqlite3_extended_result_codes db 1
+} -sqlbody {
+  CREATE TABLE t1(a int);
+  ALTER TABLE t1 ADD COLUMN b INTEGER DEFAULT NULL;
+  ALTER TABLE t1 ADD COLUMN c TEXT DEFAULT 'default-text';
+  ALTER TABLE t1 RENAME TO t2;
+  ALTER TABLE t2 ADD COLUMN d BLOB DEFAULT X'ABCD';
+}
+
+# Test malloc() failure on an ALTER TABLE on a virtual table.
+#
+ifcapable vtab {
+  do_malloc_test altermalloc-vtab -tclprep {
+    sqlite3 db2 test.db 
+    sqlite3_db_config_lookaside db2 0 0 0
+    sqlite3_extended_result_codes db2 1
+    register_echo_module [sqlite3_connection_pointer db2]
+    db2 eval {
+      CREATE TABLE t1(a, b VARCHAR, c INTEGER);
+      CREATE VIRTUAL TABLE t1echo USING echo(t1);
+    }
+    db2 close
+
+    register_echo_module [sqlite3_connection_pointer db]
+  } -tclbody {
+    set rc [catch {db eval { ALTER TABLE t1echo RENAME TO t1_echo }} msg]
+    if {$msg eq "vtable constructor failed: t1echo"} {
+      set msg "out of memory"
+    }
+    if {$rc} {
+      error $msg
+    }
+  }
+}
+
+finish_test
diff --git a/test/altermalloc2.test b/test/altermalloc2.test
new file mode 100644
index 0000000000000000000000000000000000000000..a90be88cf56dddab49316db510323383e830dbab
--- /dev/null
+++ b/test/altermalloc2.test
@@ -0,0 +1,127 @@
+# 2018 August 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+set testprefix altermalloc2
+
+# If SQLITE_OMIT_ALTERTABLE is defined, omit this file.
+ifcapable !altertable {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(abcd, efgh);
+}
+faultsim_save_and_close
+
+set ::TMPDBERROR [list 1 \
+  {unable to open a temporary database file for storing temporary tables}
+]
+
+
+do_faultsim_test 1 -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql {
+    ALTER TABLE t1 RENAME abcd TO dcba
+  }
+} -test {
+  faultsim_test_result {0 {}} $::TMPDBERROR
+}
+
+catch {db close}
+forcedelete test.db
+sqlite3 db test.db
+do_execsql_test 2.0 {
+  PRAGMA encoding = 'utf-16';
+  CREATE TABLE t1(abcd, efgh);
+}
+faultsim_save_and_close
+
+do_faultsim_test 2 -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql {
+    ALTER TABLE t1 RENAME abcd TO dcba
+  }
+} -test {
+  faultsim_test_result {0 {}} $::TMPDBERROR
+}
+
+
+reset_db
+do_execsql_test 3.0 {
+  CREATE TABLE t1(abcd, efgh);
+  CREATE VIEW v1 AS SELECT * FROM t1 WHERE abcd>efgh;
+}
+faultsim_save_and_close
+
+do_faultsim_test 3 -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql {
+    ALTER TABLE t1 RENAME abcd TO dcba
+  }
+} -test {
+  faultsim_test_result {0 {}} $::TMPDBERROR
+}
+
+reset_db
+do_execsql_test 4.0 {
+  CREATE TABLE rr(a, b);
+  CREATE VIEW vv AS SELECT * FROM rr;
+
+  CREATE TRIGGER vv1 INSTEAD OF INSERT ON vv BEGIN
+    SELECT 1, 2, 3;
+  END;
+  CREATE TRIGGER tr1 AFTER INSERT ON rr BEGIN
+    INSERT INTO vv VALUES(new.a, new.b);
+  END;
+} {}
+
+faultsim_save_and_close
+do_faultsim_test 4 -faults oom-* -prep {
+  faultsim_restore_and_reopen
+  execsql { SELECT * FROM sqlite_master }
+} -body {
+  execsql {
+    ALTER TABLE rr RENAME a TO c;
+  }
+} -test {
+  faultsim_test_result {0 {}} $::TMPDBERROR
+}
+
+reset_db
+do_execsql_test 5.0 {
+  CREATE TABLE rr(a, b);
+  CREATE VIEW vv AS SELECT * FROM (
+    WITH abc(d, e) AS (SELECT * FROM rr)
+    SELECT * FROM abc
+  );
+} {}
+
+faultsim_save_and_close
+do_faultsim_test 5 -faults oom-* -prep {
+  faultsim_restore_and_reopen
+  execsql { SELECT * FROM sqlite_master }
+} -body {
+  execsql {
+    ALTER TABLE rr RENAME TO c;
+  }
+} -test {
+  faultsim_test_result {0 {}} $::TMPDBERROR
+}
+
+finish_test
diff --git a/test/altermalloc3.test b/test/altermalloc3.test
new file mode 100644
index 0000000000000000000000000000000000000000..47efebe228cc0a11e5805c09a31980ff17504533
--- /dev/null
+++ b/test/altermalloc3.test
@@ -0,0 +1,90 @@
+# 2021 February 18
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+set testprefix altermalloc3
+
+# If SQLITE_OMIT_ALTERTABLE is defined, omit this file.
+ifcapable !altertable {
+  finish_test
+  return
+}
+
+
+set ::TMPDBERROR [list 1 \
+  {unable to open a temporary database file for storing temporary tables}
+]
+
+sqlite3_db_config db SQLITE_DBCONFIG_DQS_DDL 1
+do_execsql_test 1.0 {
+  CREATE TABLE x1(
+      one, two, three, PRIMARY KEY(one), 
+      CHECK (three!="xyz"), CHECK (two!="one")
+  ) WITHOUT ROWID;
+  CREATE INDEX x1i ON x1(one+"two"+"four") WHERE "five";
+  CREATE TEMP TRIGGER AFTER INSERT ON x1 BEGIN
+    UPDATE x1 SET two=new.three || "new" WHERE one=new.one||"";
+  END;
+  CREATE TABLE t1(a, b, c, d, PRIMARY KEY(d, b)) WITHOUT ROWID;
+  INSERT INTO t1 VALUES(1, 2, 3, 4);
+}
+faultsim_save_and_close
+
+do_faultsim_test 1 -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { ALTER TABLE t1 DROP COLUMN c }
+} -test {
+  faultsim_test_result {0 {}} $::TMPDBERROR
+}
+
+
+#-------------------------------------------------------------------------
+# dbsqlfuzz e3dd84cda3848016a6a6024c7249d09bc2ef2615
+#
+reset_db
+do_execsql_test 2.0 {
+  CREATE TABLE t2(k,v);
+  CREATE TRIGGER r2 AFTER INSERT ON t2 BEGIN
+    UPDATE t2 SET (k,v)= (
+       (WITH cte1(a) AS ( SELECT 1 FROM ( SELECT * FROM t2 ) )
+       SELECT a FROM cte1
+    ), 1);
+  END;
+
+  CREATE TRIGGER r1 AFTER INSERT ON t2 BEGIN
+    UPDATE t2 SET k=1 FROM t2 AS one, t2 AS two NATURAL JOIN t2 AS three 
+    WHERE one.k=two.v;
+  END;
+}
+
+faultsim_save_and_close
+faultsim_restore_and_reopen
+
+do_execsql_test 2.1 {
+  ALTER TABLE t2 RENAME TO t2x;
+}
+
+do_faultsim_test 2.2 -prep {
+  faultsim_restore_and_reopen
+  db eval { SELECT * FROM sqlite_master } 
+} -body {
+  execsql {
+    ALTER TABLE t2 RENAME TO t2x;
+  }
+} -test {
+  faultsim_test_result {0 {}} $::TMPDBERROR
+}
+
+finish_test
diff --git a/test/alterqf.test b/test/alterqf.test
new file mode 100644
index 0000000000000000000000000000000000000000..b248c7c7f461dccece22d3ae4b134c2e8526ab95
--- /dev/null
+++ b/test/alterqf.test
@@ -0,0 +1,120 @@
+# 2021 March 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. This
+# script focuses on testing internal function sqlite_rename_quotefix().
+#
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix alterqf
+
+# If SQLITE_OMIT_ALTERTABLE is defined, omit this file.
+ifcapable !altertable {
+  finish_test
+  return
+}
+
+
+sqlite3_test_control SQLITE_TESTCTRL_INTERNAL_FUNCTIONS db
+sqlite3_db_config db SQLITE_DBCONFIG_DQS_DDL 1
+sqlite3_db_config db SQLITE_DBCONFIG_DQS_DML 1
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b, c);
+}
+
+foreach {tn before after} {
+  1 {CREATE VIEW v1 AS SELECT "a", "b", "notacolumn!", "c" FROM t1}
+    {CREATE VIEW v1 AS SELECT "a", "b", 'notacolumn!', "c" FROM t1}
+
+  2 {CREATE VIEW v1 AS SELECT "a", "b", "not'a'column!", "c" FROM t1}
+    {CREATE VIEW v1 AS SELECT "a", "b", 'not''a''column!', "c" FROM t1}
+
+  3 {CREATE VIEW v1 AS SELECT "a", "b", "not""a""column!", "c" FROM t1}
+    {CREATE VIEW v1 AS SELECT "a", "b", 'not"a"column!', "c" FROM t1}
+
+  4 {CREATE VIEW v1 AS SELECT "val", count("b") FROM t1 GROUP BY "abc"}
+    {CREATE VIEW v1 AS SELECT 'val', count("b") FROM t1 GROUP BY 'abc'}
+
+  5 {CREATE TABLE xyz(a CHECK (a!="str"), b AS (a||"str"))}
+    {CREATE TABLE xyz(a CHECK (a!='str'), b AS (a||'str'))}
+
+  6 {CREATE INDEX i1 ON t1(a || "str", "b", "val")}
+    {CREATE INDEX i1 ON t1(a || 'str', "b", 'val')}
+
+  7 {CREATE TRIGGER tr AFTER INSERT ON t1 BEGIN SELECT "abcd"; END}
+    {CREATE TRIGGER tr AFTER INSERT ON t1 BEGIN SELECT 'abcd'; END}
+
+  8 {CREATE VIEW v1 AS SELECT "string"'alias' FROM t1}
+    {CREATE VIEW v1 AS SELECT 'string' 'alias' FROM t1}
+
+  9 {CREATE INDEX i1 ON t1(a) WHERE "b"="bb"}
+    {CREATE INDEX i1 ON t1(a) WHERE "b"='bb'}
+
+ 10 {CREATE TABLE t2(abc, xyz CHECK (xyz != "123"))} 
+    {CREATE TABLE t2(abc, xyz CHECK (xyz != '123'))} 
+
+ 11 {CREATE TRIGGER ott AFTER UPDATE ON t1 BEGIN 
+      SELECT max("str", new."a") FROM t1 
+          WHERE string_agg("b", ",") OVER (ORDER BY c||"str");
+      UPDATE t1 SET c= b + "str";
+      DELETE FROM t1 WHERE EXISTS (
+        SELECT 1 FROM t1 AS o WHERE o."a" = "o.a" AND t1.b IN("t1.b")
+      );
+    END;
+ } {CREATE TRIGGER ott AFTER UPDATE ON t1 BEGIN 
+      SELECT max('str', new."a") FROM t1 
+          WHERE string_agg("b", ',') OVER (ORDER BY c||'str');
+      UPDATE t1 SET c= b + 'str';
+      DELETE FROM t1 WHERE EXISTS (
+        SELECT 1 FROM t1 AS o WHERE o."a" = 'o.a' AND t1.b IN('t1.b')
+      );
+    END;
+ }
+
+} {
+  do_execsql_test 1.$tn {
+    SELECT sqlite_rename_quotefix('main', $before)
+  } [list $after]
+}
+
+#-------------------------------------------------------------------------
+reset_db
+sqlite3_db_config db SQLITE_DBCONFIG_DQS_DDL 1
+sqlite3_db_config db SQLITE_DBCONFIG_DQS_DML 1
+do_execsql_test 2.0 {
+  CREATE TABLE x1(
+      one, two, three, PRIMARY KEY(one), 
+      CHECK (three!="xyz"), CHECK (two!="one")
+  ) WITHOUT ROWID;
+  CREATE INDEX x1i ON x1(one+"two"+"four") WHERE "five";
+  CREATE TEMP TRIGGER AFTER INSERT ON x1 BEGIN
+    UPDATE x1 SET two=new.three || "new" WHERE one=new.one||"";
+  END;
+}
+
+do_execsql_test 2.1 {
+  ALTER TABLE x1 RENAME two TO 'four';
+  SELECT sql FROM sqlite_schema;
+  SELECT sql FROM sqlite_temp_schema;
+} {{CREATE TABLE x1(
+      one, "four", three, PRIMARY KEY(one), 
+      CHECK (three!='xyz'), CHECK ("four"!="one")
+  ) WITHOUT ROWID}
+  {CREATE INDEX x1i ON x1(one+"four"+'four') WHERE 'five'}
+  {CREATE TRIGGER AFTER INSERT ON x1 BEGIN
+    UPDATE x1 SET "four"=new.three || 'new' WHERE one=new.one||'';
+  END}
+}
+
+
+finish_test
diff --git a/test/altertab.test b/test/altertab.test
new file mode 100644
index 0000000000000000000000000000000000000000..9cc43e14de2b67e88e12edb742cc830b3e2ebb2f
--- /dev/null
+++ b/test/altertab.test
@@ -0,0 +1,1002 @@
+# 2018 August 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix altertab
+
+# If SQLITE_OMIT_ALTERTABLE is defined, omit this file.
+ifcapable !altertable {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b, CHECK(t1.a != t1.b));
+
+  CREATE TABLE t2(a, b);
+  CREATE INDEX t2expr ON t2(a) WHERE t2.b>0;
+}
+
+do_execsql_test 1.1 {
+  SELECT sql FROM sqlite_master
+} {
+  {CREATE TABLE t1(a, b, CHECK(t1.a != t1.b))}
+  {CREATE TABLE t2(a, b)}
+  {CREATE INDEX t2expr ON t2(a) WHERE t2.b>0}
+}
+
+do_execsql_test 1.2 {
+  ALTER TABLE t1 RENAME TO t1new;
+}
+
+do_execsql_test 1.3 {
+  CREATE TABLE t3(c, d);
+  ALTER TABLE t3 RENAME TO t3new;
+  DROP TABLE t3new;
+}
+
+do_execsql_test 1.4 {
+  SELECT sql FROM sqlite_master
+} {
+  {CREATE TABLE "t1new"(a, b, CHECK("t1new".a != "t1new".b))}
+  {CREATE TABLE t2(a, b)}
+  {CREATE INDEX t2expr ON t2(a) WHERE t2.b>0}
+}
+
+
+do_execsql_test 1.3 {
+  ALTER TABLE t2 RENAME TO t2new;
+}
+do_execsql_test 1.4 {
+  SELECT sql FROM sqlite_master
+} {
+  {CREATE TABLE "t1new"(a, b, CHECK("t1new".a != "t1new".b))}
+  {CREATE TABLE "t2new"(a, b)}
+  {CREATE INDEX t2expr ON "t2new"(a) WHERE "t2new".b>0}
+}
+
+
+#-------------------------------------------------------------------------
+reset_db
+ifcapable vtab {
+  register_echo_module db
+
+  do_execsql_test 2.0 {
+    CREATE TABLE abc(a, b, c);
+    INSERT INTO abc VALUES(1, 2, 3);
+    CREATE VIRTUAL TABLE eee USING echo('abc');
+    SELECT * FROM eee;
+  } {1 2 3}
+
+  do_execsql_test 2.1 {
+    ALTER TABLE eee RENAME TO fff;
+    SELECT * FROM fff;
+  } {1 2 3}
+
+  db close
+  sqlite3 db test.db
+
+  do_catchsql_test 2.2 {
+    ALTER TABLE fff RENAME TO ggg;
+  } {1 {no such module: echo}}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 3.0 {
+  CREATE TABLE txx(a, b, c);
+  INSERT INTO txx VALUES(1, 2, 3);
+  CREATE VIEW vvv AS SELECT main.txx.a, txx.b, c FROM txx;
+  CREATE VIEW uuu AS SELECT main.one.a, one.b, c FROM txx AS one;
+  CREATE VIEW temp.ttt AS SELECT main.txx.a, txx.b, one.b, main.one.a FROM txx AS one, txx;
+}
+
+do_execsql_test 3.1.1 {
+  SELECT * FROM vvv;
+} {1 2 3}
+do_execsql_test 3.1.2 {
+  ALTER TABLE txx RENAME TO "t xx";
+  SELECT * FROM vvv;
+} {1 2 3}
+do_execsql_test 3.1.3 {
+  SELECT sql FROM sqlite_master WHERE name='vvv';
+} {{CREATE VIEW vvv AS SELECT main."t xx".a, "t xx".b, c FROM "t xx"}}
+
+
+do_execsql_test 3.2.1 {
+  SELECT * FROM uuu;
+} {1 2 3}
+do_execsql_test 3.2.2 {
+  SELECT sql FROM sqlite_master WHERE name='uuu';;
+} {{CREATE VIEW uuu AS SELECT main.one.a, one.b, c FROM "t xx" AS one}}
+
+do_execsql_test 3.3.1 {
+  SELECT * FROM ttt;
+} {1 2 2 1}
+do_execsql_test 3.3.2 {
+  SELECT sql FROM sqlite_temp_master WHERE name='ttt';
+} {{CREATE VIEW ttt AS SELECT main."t xx".a, "t xx".b, one.b, main.one.a FROM "t xx" AS one, "t xx"}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 4.0 {
+  CREATE table t1(x, y);
+  CREATE table t2(a, b);
+
+  CREATE TRIGGER tr1 AFTER INSERT ON t1 BEGIN
+    SELECT t1.x, * FROM t1, t2;
+    INSERT INTO t2 VALUES(new.x, new.y);
+  END;
+}
+
+do_execsql_test 4.1 {
+  INSERT INTO t1 VALUES(1, 1);
+  ALTER TABLE t1 RENAME TO t11;
+  INSERT INTO t11 VALUES(2, 2);
+  ALTER TABLE t2 RENAME TO t22;
+  INSERT INTO t11 VALUES(3, 3);
+}
+
+proc squish {a} {
+  string trim [regsub -all {[[:space:]][[:space:]]*} $a { }]
+}
+db func squish squish
+do_test 4.2 {
+  execsql { SELECT squish(sql) FROM sqlite_master WHERE name = 'tr1' }
+} [list [squish {
+  CREATE TRIGGER tr1 AFTER INSERT ON "t11" BEGIN
+    SELECT "t11".x, * FROM "t11", "t22";
+    INSERT INTO "t22" VALUES(new.x, new.y);
+  END
+}]]
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 5.0 {
+  CREATE TABLE t9(a, b, c);
+  CREATE TABLE t10(a, b, c);
+  CREATE TEMP TABLE t9(a, b, c);
+
+  CREATE TRIGGER temp.t9t AFTER INSERT ON temp.t9 BEGIN
+    INSERT INTO t10 VALUES(new.a, new.b, new.c);
+  END;
+
+  INSERT INTO temp.t9 VALUES(1, 2, 3);
+  SELECT * FROM t10;
+} {1 2 3}
+
+do_execsql_test 5.1 {
+  ALTER TABLE temp.t9 RENAME TO 't1234567890'
+}
+
+do_execsql_test 5.2 {
+  CREATE TABLE t1(a, b);
+  CREATE TABLE t2(a, b);
+  INSERT INTO t1 VALUES(1, 2);
+  INSERT INTO t2 VALUES(3, 4);
+  CREATE VIEW v AS SELECT one.a, one.b, t2.a, t2.b FROM t1 AS one, t2;
+  SELECT * FROM v;
+} {1 2 3 4}
+
+do_catchsql_test 5.3 {
+  ALTER TABLE t2 RENAME TO one;
+} {1 {error in view v after rename: ambiguous column name: one.a}}
+
+do_execsql_test 5.4 {
+  SELECT  *  FROM v
+} {1 2 3 4}
+
+do_execsql_test 5.5 {
+  DROP VIEW v;
+  CREATE VIEW temp.vv AS SELECT one.a, one.b, t2.a, t2.b FROM t1 AS one, t2;
+  SELECT * FROM vv;
+} {1 2 3 4}
+
+do_catchsql_test 5.6 {
+  ALTER TABLE t2 RENAME TO one;
+} {1 {error in view vv after rename: ambiguous column name: one.a}}
+
+#-------------------------------------------------------------------------
+
+ifcapable vtab {
+  register_tcl_module db
+  proc tcl_command {method args} {
+    switch -- $method {
+      xConnect {
+        return "CREATE TABLE t1(a, b, c)"
+      }
+    }
+    return {}
+  }
+  
+  do_execsql_test 6.0 {
+    CREATE VIRTUAL TABLE x1 USING tcl(tcl_command);
+  }
+  
+  do_execsql_test 6.1 {
+    ALTER TABLE x1 RENAME TO x2;
+    SELECT sql FROM sqlite_master WHERE name = 'x2'
+  } {{CREATE VIRTUAL TABLE "x2" USING tcl(tcl_command)}}
+  
+  do_execsql_test 7.1 {
+    CREATE TABLE ddd(db, sql, zOld, zNew, bTemp);
+    INSERT INTO ddd VALUES(
+        'main', 'CREATE TABLE x1(i INTEGER, t TEXT)', 'ddd', NULL, 0
+    ), (
+        'main', 'CREATE TABLE x1(i INTEGER, t TEXT)', NULL, 'eee', 0
+    ), (
+        'main', NULL, 'ddd', 'eee', 0
+    );
+  } {}
+  
+  sqlite3_test_control SQLITE_TESTCTRL_INTERNAL_FUNCTIONS db
+  do_execsql_test 7.2 {
+    SELECT 
+    sqlite_rename_table(db, 0, 0, sql, zOld, zNew, bTemp)
+    FROM ddd;
+  } {{} {} {}}
+  sqlite3_test_control SQLITE_TESTCTRL_INTERNAL_FUNCTIONS db
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+forcedelete test.db2
+do_execsql_test 8.1 {
+  ATTACH 'test.db2' AS aux;
+  PRAGMA foreign_keys = on;
+  CREATE TABLE aux.p1(a INTEGER PRIMARY KEY, b);
+  CREATE TABLE aux.c1(x INTEGER PRIMARY KEY, y REFERENCES p1(a));
+  INSERT INTO aux.p1 VALUES(1, 1);
+  INSERT INTO aux.p1 VALUES(2, 2);
+  INSERT INTO aux.c1 VALUES(NULL, 2);
+  CREATE TABLE aux.c2(x INTEGER PRIMARY KEY, y REFERENCES c1(a));
+}
+
+do_execsql_test 8.2 {
+  ALTER TABLE aux.p1 RENAME TO ppp;
+}
+
+do_execsql_test 8.2 {
+  INSERT INTO aux.c1 VALUES(NULL, 1);
+  SELECT sql FROM aux.sqlite_master WHERE name = 'c1';
+} {{CREATE TABLE c1(x INTEGER PRIMARY KEY, y REFERENCES "ppp"(a))}}
+
+reset_db
+do_execsql_test 9.0 {
+  CREATE TABLE t1(a, b, c);
+  CREATE VIEW v1 AS SELECT * FROM t2;
+}
+do_catchsql_test 9.1 {
+  ALTER TABLE t1 RENAME TO t3;
+} {1 {error in view v1: no such table: main.t2}}
+do_execsql_test 9.2 {
+  DROP VIEW v1;
+  CREATE TRIGGER tr AFTER INSERT ON t1 BEGIN
+    INSERT INTO t2 VALUES(new.a);
+  END;
+}
+do_catchsql_test 9.3 {
+  ALTER TABLE t1 RENAME TO t3;
+} {1 {error in trigger tr: no such table: main.t2}}
+
+forcedelete test.db2
+do_execsql_test 9.4 {
+  DROP TRIGGER tr;
+
+  ATTACH 'test.db2' AS aux;
+  CREATE TRIGGER tr AFTER INSERT ON t1 WHEN new.a IS NULL BEGIN SELECT 1, 2, 3; END;
+
+  CREATE TABLE aux.t1(x);
+  CREATE TEMP TRIGGER tr AFTER INSERT ON aux.t1 BEGIN SELECT 1, 2, 3; END;
+}
+do_execsql_test 9.5 {
+  ALTER TABLE main.t1 RENAME TO t3;
+}
+do_execsql_test 9.6 {
+  SELECT sql FROM sqlite_temp_master;
+  SELECT sql FROM sqlite_master WHERE type='trigger';
+} {
+  {CREATE TRIGGER tr AFTER INSERT ON aux.t1 BEGIN SELECT 1, 2, 3; END}
+  {CREATE TRIGGER tr AFTER INSERT ON "t3" WHEN new.a IS NULL BEGIN SELECT 1, 2, 3; END}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+ifcapable fts5 {
+  do_execsql_test 10.0 {
+    CREATE VIRTUAL TABLE fff USING fts5(x, y, z);
+  }
+
+  do_execsql_test 10.1 {
+    BEGIN;
+      INSERT INTO fff VALUES('a', 'b', 'c');
+      ALTER TABLE fff RENAME TO ggg;
+    COMMIT;
+  }
+
+  do_execsql_test 10.2 {
+    SELECT * FROM ggg;
+  } {a b c}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+forcedelete test.db2
+db func trigger trigger
+set ::trigger [list]
+proc trigger {args} {
+  lappend ::trigger $args
+}
+do_execsql_test 11.0 {
+  ATTACH 'test.db2' AS aux;
+  CREATE TABLE aux.t1(a, b, c);
+  CREATE TABLE main.t1(a, b, c);
+  CREATE TEMP TRIGGER tr AFTER INSERT ON aux.t1 BEGIN
+    SELECT trigger(new.a, new.b, new.c);
+  END;
+}
+
+do_execsql_test 11.1 {
+  INSERT INTO main.t1 VALUES(1, 2, 3);
+  INSERT INTO aux.t1 VALUES(4, 5, 6);
+}
+do_test 11.2 { set ::trigger } {{4 5 6}}
+
+do_execsql_test 11.3 {
+  SELECT name, tbl_name FROM sqlite_temp_master;
+} {tr t1}
+
+do_execsql_test 11.4 {
+  ALTER TABLE main.t1 RENAME TO t2;
+  SELECT name, tbl_name FROM sqlite_temp_master;
+} {tr t1}
+
+do_execsql_test 11.5 {
+  ALTER TABLE aux.t1 RENAME TO t2;
+  SELECT name, tbl_name FROM sqlite_temp_master;
+} {tr t2}
+
+do_execsql_test 11.6 {
+  INSERT INTO aux.t2 VALUES(7, 8, 9);
+}
+do_test 11.7 { set ::trigger } {{4 5 6} {7 8 9}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 12.0 {
+  CREATE TABLE t1(a);
+  CREATE TABLE t2(w);
+  CREATE TRIGGER temp.r1 AFTER INSERT ON main.t2 BEGIN
+    INSERT INTO t1(a) VALUES(new.w);
+  END;
+  CREATE TEMP TABLE t2(x);
+}
+
+do_execsql_test 12.1 {
+  ALTER TABLE main.t2 RENAME TO t3;
+}
+
+do_execsql_test 12.2 {
+  INSERT INTO t3 VALUES('WWW');
+  SELECT * FROM t1;
+} {WWW}
+
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 13.0 {
+  CREATE TABLE t1(x, y);
+  CREATE TABLE t2(a, b);
+  CREATE TABLE log(c);
+  CREATE TRIGGER tr1 AFTER INSERT ON t1 BEGIN
+    INSERT INTO log SELECT y FROM t1, t2;
+  END;
+}
+
+do_execsql_test 13.1 {
+  INSERT INTO t1 VALUES(1, 2);
+}
+
+do_catchsql_test 13.2 {
+  ALTER TABLE t2 RENAME b TO y;
+} {1 {error in trigger tr1 after rename: ambiguous column name: y}}
+
+#-------------------------------------------------------------------------
+reset_db
+
+ifcapable rtree {
+  do_execsql_test 14.0 {
+    CREATE VIRTUAL TABLE rt USING rtree(id, minx, maxx, miny, maxy);
+
+    CREATE TABLE "mytable" ( "fid" INTEGER PRIMARY KEY, "geom" BLOB);
+
+    CREATE TRIGGER tr1 AFTER UPDATE OF "geom" ON "mytable" 
+          WHEN OLD."fid" = NEW."fid" AND NEW."geom" IS NULL BEGIN 
+      DELETE FROM rt WHERE id = OLD."fid"; 
+    END;
+
+    INSERT INTO mytable VALUES(1, X'abcd');
+  }
+
+  do_execsql_test 14.1 {
+    UPDATE mytable SET geom = X'1234'
+  }
+
+  do_execsql_test 14.2 {
+    ALTER TABLE mytable RENAME TO mytable_renamed;
+  }
+
+  do_execsql_test 14.3 {
+    CREATE TRIGGER tr2 AFTER INSERT ON mytable_renamed BEGIN
+      DELETE FROM rt WHERE id=(SELECT min(id) FROM rt);
+    END;
+  }
+
+  do_execsql_test 14.4 {
+    ALTER TABLE mytable_renamed RENAME TO mytable2;
+  }
+}
+
+reset_db
+do_execsql_test 14.5 {
+  CREATE TABLE t1(a, b, c);
+  CREATE VIEW v1 AS SELECT * FROM t1;
+  CREATE TRIGGER xyz AFTER INSERT ON t1 BEGIN
+    SELECT a, b FROM v1;
+  END;
+}
+do_execsql_test 14.6 {
+  ALTER TABLE t1 RENAME TO tt1;
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 15.0 {
+  CREATE TABLE t1(a integer NOT NULL PRIMARY KEY);
+  CREATE VIEW v1 AS SELECT a FROM t1;
+  CREATE TRIGGER tr1 INSTEAD OF INSERT ON v1 BEGIN 
+    UPDATE t1 SET a = NEW.a;
+  END;
+  CREATE TRIGGER tr2 INSTEAD OF INSERT ON v1 BEGIN 
+    SELECT new.a;
+  END;
+  CREATE TABLE t2 (b);
+}
+
+do_execsql_test 15.1 {
+  INSERT INTO v1 VALUES(1);
+  ALTER TABLE t2 RENAME TO t3;
+}
+
+do_execsql_test 15.2 {
+  CREATE TABLE x(f1 integer NOT NULL);
+  CREATE VIEW y AS SELECT f1 AS f1 FROM x;
+  CREATE TRIGGER t INSTEAD OF UPDATE OF f1 ON y BEGIN 
+    UPDATE x SET f1 = NEW.f1; 
+  END;
+  CREATE TABLE z (f1 integer NOT NULL PRIMARY KEY);
+  ALTER TABLE z RENAME TO z2;
+}
+
+do_execsql_test 15.3 {
+  INSERT INTO x VALUES(1), (2), (3);
+  ALTER TABLE x RENAME f1 TO f2;
+  SELECT * FROM x;
+} {1 2 3}
+
+do_execsql_test 15.4 {
+  UPDATE y SET f1 = 'x' WHERE f1 = 1;
+  SELECT * FROM x;
+} {x x x}
+
+do_execsql_test 15.5 {
+  SELECT sql FROM sqlite_master WHERE name = 'y';
+} {{CREATE VIEW y AS SELECT f2 AS f1 FROM x}}
+
+#-------------------------------------------------------------------------
+# Test that it is not possible to rename a shadow table in DEFENSIVE mode.
+#
+ifcapable fts3 {
+  proc vtab_command {method args} {
+    switch -- $method {
+      xConnect {
+        if {[info exists ::vtab_connect_sql]} {
+          execsql $::vtab_connect_sql
+        }
+        return "CREATE TABLE t1(a, b, c)"
+      }
+
+      xBestIndex {
+        set clist [lindex $args 0]
+        if {[llength $clist]!=1} { error "unexpected constraint list" }
+        catch { array unset C }
+        array set C [lindex $clist 0]
+        if {$C(usable)} {
+          return "omit 0 cost 0 rows 1 idxnum 555 idxstr eq!"
+        } else {
+          return "cost 1000000 rows 0 idxnum 0 idxstr scan..."
+        }
+      }
+    }
+
+    return {}
+  }
+
+  register_tcl_module db
+
+  sqlite3_db_config db DEFENSIVE 1
+
+  do_execsql_test 16.0 {
+    CREATE VIRTUAL TABLE y1 USING fts3;
+    VACUUM;
+  }
+
+  do_catchsql_test 16.10 {
+    INSERT INTO y1_segments VALUES(1, X'1234567890');
+  } {1 {table y1_segments may not be modified}}
+
+  do_catchsql_test 16.20 {
+    DROP TABLE y1_segments;
+  } {1 {table y1_segments may not be dropped}}
+
+  do_catchsql_test 16.20 {
+    ALTER TABLE y1_segments RENAME TO abc;
+  } {1 {table y1_segments may not be altered}}
+  sqlite3_db_config db DEFENSIVE 0
+  do_catchsql_test 16.22 {
+    ALTER TABLE y1_segments RENAME TO abc;
+  } {0 {}}
+  sqlite3_db_config db DEFENSIVE 1
+  do_catchsql_test 16.23 {
+    CREATE TABLE y1_segments AS SELECT * FROM abc;
+  } {1 {object name reserved for internal use: y1_segments}}
+  do_catchsql_test 16.24 {
+    CREATE VIEW y1_segments AS SELECT * FROM abc;
+  } {1 {object name reserved for internal use: y1_segments}}
+  sqlite3_db_config db DEFENSIVE 0
+  do_catchsql_test 16.25 {
+    ALTER TABLE abc RENAME TO y1_segments;
+  } {0 {}}
+  sqlite3_db_config db DEFENSIVE 1
+
+  do_execsql_test 16.30 {
+    ALTER TABLE y1 RENAME TO z1;
+  }
+
+  do_execsql_test 16.40 {
+    SELECT * FROM z1_segments;
+  }
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 17.0 {
+  CREATE TABLE sqlite1234 (id integer);
+  ALTER TABLE sqlite1234 RENAME TO User;
+  SELECT name, sql FROM sqlite_master WHERE sql IS NOT NULL;
+} {
+  User {CREATE TABLE "User" (id integer)}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 18.1.0 {
+  CREATE TABLE t0 (c0 INTEGER, PRIMARY KEY(c0)) WITHOUT ROWID;
+}
+do_execsql_test 18.1.1 {
+  ALTER TABLE t0 RENAME COLUMN c0 TO c1;
+}
+do_execsql_test 18.1.2 {
+  SELECT sql FROM sqlite_master;
+} {{CREATE TABLE t0 (c1 INTEGER, PRIMARY KEY(c1)) WITHOUT ROWID}}
+
+reset_db
+do_execsql_test 18.2.0 {
+  CREATE TABLE t0 (c0 INTEGER, PRIMARY KEY(c0));
+}
+do_execsql_test 18.2.1 {
+  ALTER TABLE t0 RENAME COLUMN c0 TO c1;
+}
+do_execsql_test 18.2.2 {
+  SELECT sql FROM sqlite_master;
+} {{CREATE TABLE t0 (c1 INTEGER, PRIMARY KEY(c1))}}
+
+# 2020-02-23 ticket f50af3e8a565776b
+reset_db
+do_execsql_test 19.100 {
+  CREATE TABLE t1(x);
+  CREATE VIEW t2 AS SELECT 1 FROM t1, (t1 AS a0, t1);
+  ALTER TABLE t1 RENAME TO t3;
+  SELECT sql FROM sqlite_master;
+} {{CREATE TABLE "t3"(x)} {CREATE VIEW t2 AS SELECT 1 FROM "t3", ("t3" AS a0, "t3")}}
+do_execsql_test 19.110 {
+  INSERT INTO t3(x) VALUES(123);
+  SELECT * FROM t2;
+} {1}
+do_execsql_test 19.120 {
+  INSERT INTO t3(x) VALUES('xyz');
+  SELECT * FROM t2;
+} {1 1 1 1 1 1 1 1}
+
+# Ticket 4722bdab08cb14
+reset_db
+do_execsql_test 20.0 {
+  CREATE TABLE a(a);
+  CREATE VIEW b AS SELECT(SELECT *FROM c JOIN a USING(d, a, a, a) JOIN a) IN();
+}
+do_execsql_test 20.1 {
+  ALTER TABLE a RENAME a TO e;
+} {}
+
+reset_db
+do_execsql_test 21.0 {
+  CREATE TABLE a(b);
+  CREATE VIEW c AS 
+      SELECT NULL INTERSECT 
+      SELECT NULL ORDER BY
+      likelihood(NULL, (d, (SELECT c)));
+} {}
+do_catchsql_test 21.1 {
+  SELECT likelihood(NULL, (d, (SELECT c)));
+} {1 {second argument to likelihood() must be a constant between 0.0 and 1.0}}
+do_catchsql_test 21.2 {
+  SELECT * FROM c;
+} {1 {1st ORDER BY term does not match any column in the result set}}
+
+do_catchsql_test 21.3 {
+  ALTER TABLE a RENAME TO e;
+} {1 {error in view c: 1st ORDER BY term does not match any column in the result set}}
+
+# After forum thread https://sqlite.org/forum/forumpost/ddbe1c7efa
+# Ensure that PRAGMA schema_version=N causes a full schema reload.
+#
+reset_db
+do_execsql_test 22.0 {
+  CREATE TABLE t1(a INT, b TEXT NOT NULL);
+  INSERT INTO t1 VALUES(1,2),('a','b');
+  BEGIN;
+  PRAGMA writable_schema=ON;
+  UPDATE sqlite_schema SET sql='CREATE TABLE t1(a INT, b TEXT)' WHERE name LIKE 't1';
+  PRAGMA schema_version=1234;
+  COMMIT;
+  PRAGMA integrity_check;
+} {ok}
+do_execsql_test 22.1 {
+  ALTER TABLE t1 ADD COLUMN c INT DEFAULT 78;
+  SELECT * FROM t1;
+} {1 2 78 a b 78}
+
+#-------------------------------------------------------------------------
+reset_db
+db collate compare64 compare64
+
+do_execsql_test 23.1 {
+  CREATE TABLE gigo(a text);
+  CREATE TABLE idx(x text COLLATE compare64);
+  CREATE VIEW v1 AS SELECT * FROM idx WHERE x='abc';
+}
+db close
+sqlite3 db test.db
+
+do_execsql_test 23.2 {
+  alter table gigo rename to ggiiggoo;
+  alter table idx rename to idx2;
+}
+
+do_execsql_test 23.3 {
+  SELECT sql FROM sqlite_master;
+} {
+  {CREATE TABLE "ggiiggoo"(a text)} 
+  {CREATE TABLE "idx2"(x text COLLATE compare64)}
+  {CREATE VIEW v1 AS SELECT * FROM "idx2" WHERE x='abc'}
+}
+
+do_execsql_test 23.4 {
+  ALTER TABLE idx2 RENAME x TO y;
+  SELECT sql FROM sqlite_master;
+} {
+  {CREATE TABLE "ggiiggoo"(a text)} 
+  {CREATE TABLE "idx2"(y text COLLATE compare64)}
+  {CREATE VIEW v1 AS SELECT * FROM "idx2" WHERE y='abc'}
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 24.1.0 {
+  CREATE TABLE t1(a, b);
+  CREATE TRIGGER AFTER INSERT ON t1 BEGIN
+    INSERT INTO nosuchtable VALUES(new.a) ON CONFLICT(a) DO NOTHING;
+  END;
+}
+do_catchsql_test 24.1.1 {
+  ALTER TABLE t1 RENAME TO t2;
+} {1 {error in trigger AFTER: no such table: main.nosuchtable}}
+
+reset_db
+do_execsql_test 24.2.0 {
+  CREATE TABLE t1(a, b);
+  CREATE TRIGGER AFTER INSERT ON t1 BEGIN
+    INSERT INTO v1 VALUES(new.a) ON CONFLICT(a) DO NOTHING;
+  END;
+  CREATE VIEW v1 AS SELECT * FROM nosuchtable;
+}
+do_catchsql_test 24.2.1 {
+  ALTER TABLE t1 RENAME TO t2;
+} {1 {error in trigger AFTER: no such table: main.nosuchtable}}
+
+#--------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 25.1 {
+  CREATE TABLE xx(x);
+  CREATE VIEW v3(b) AS WITH b AS (SELECT b FROM (SELECT * FROM t2)) VALUES(1);
+}
+
+ifcapable json1&&vtab {
+  do_catchsql_test 25.2 {
+    ALTER TABLE json_each RENAME TO t4;
+  } {1 {table json_each may not be altered}}
+}
+
+# 2021-05-01 dbsqlfuzz bc17a306a09329bba0ecc61547077f6178bcf321
+# Remove a NEVER() inserted on 2019-12-09 that is reachable after all.
+#
+reset_db
+do_execsql_test 26.1 {
+  CREATE TABLE t1(k,v);
+  CREATE TABLE t2_a(k,v);
+  CREATE VIEW t2 AS SELECT * FROM t2_a;
+  CREATE TRIGGER r2 AFTER INSERT ON t1 BEGIN
+    UPDATE t1 
+       SET (k,v)=((WITH cte1(a) AS (SELECT 1 FROM t2) SELECT t2.k FROM t2, cte1),1);
+  END;
+  ALTER TABLE t1 RENAME TO t1x;
+  INSERT INTO t2_a VALUES(2,3);
+  INSERT INTO t1x VALUES(98,99);
+  SELECT * FROM t1x;
+} {2 1}
+
+#-------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 27.1 {
+
+ create table t_sa (
+ c_muyat INTEGER NOT NULL,
+ c_d4u TEXT 
+ );
+
+ create table t2 ( abc );
+
+ CREATE TRIGGER trig AFTER DELETE ON t_sa
+   BEGIN
+   DELETE FROM t_sa WHERE (
+       SELECT 123 FROM t2
+       WINDOW oamat7fzf AS ( PARTITION BY t_sa.c_d4u )
+   );
+   END;
+}
+
+do_execsql_test 27.2 {
+  alter table t_sa rename column c_muyat to c_dg;
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 29.1 {
+  CREATE TABLE t1(a, b, c);
+  INSERT INTO t1 VALUES('a', 'b', 'c');
+
+  CREATE VIEW v0 AS
+    WITH p AS ( SELECT 1 FROM t1 ),
+         g AS ( SELECT 1 FROM p, t1 )
+    SELECT 1 FROM g;
+}
+
+do_execsql_test 29.2 {
+  SELECT * FROM v0
+} 1
+
+do_execsql_test 29.2 {
+  ALTER TABLE t1 RENAME TO t2
+} 
+
+do_execsql_test 29.3 {
+  SELECT sql FROM sqlite_schema WHERE name='v0'
+} {{CREATE VIEW v0 AS
+    WITH p AS ( SELECT 1 FROM "t2" ),
+         g AS ( SELECT 1 FROM p, "t2" )
+    SELECT 1 FROM g}}
+
+do_execsql_test 29.4 {
+  CREATE VIEW v2 AS
+    WITH p AS ( SELECT 1 FROM t2 ),
+         g AS ( SELECT 1 FROM (
+           WITH i AS (SELECT 1 FROM p, t2)
+           SELECT * FROM i
+         )
+    )
+    SELECT 1 FROM g;
+}
+
+do_execsql_test 29.4 {
+    SELECT * FROM v2;
+} 1
+
+do_execsql_test 29.5 {
+  ALTER TABLE t2 RENAME TO t3;
+} 
+
+do_execsql_test 29.5 {
+  SELECT sql FROM sqlite_schema WHERE name='v2'
+} {{CREATE VIEW v2 AS
+    WITH p AS ( SELECT 1 FROM "t3" ),
+         g AS ( SELECT 1 FROM (
+           WITH i AS (SELECT 1 FROM p, "t3")
+           SELECT * FROM i
+         )
+    )
+    SELECT 1 FROM g}}
+
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 28.1 {
+  CREATE TABLE t1(a);
+  CREATE TABLE t2(b,c);
+  CREATE TABLE t4(b,c);
+  INSERT INTO t2 VALUES(1,2),(1,3),(2,5);
+  INSERT INTO t4 VALUES(1,2),(1,3),(2,5);
+
+  CREATE VIEW v3 AS 
+    WITH RECURSIVE t3(x,y,z) AS (
+        SELECT b,c,NULL FROM t4
+        UNION
+        SELECT x,y,NULL FROM t3, t2
+    )
+  SELECT * FROM t3 AS xyz;
+}
+
+do_execsql_test 28.2 {
+  SELECT * FROM v3
+} {
+  1 2 {} 1 3 {} 2 5 {}
+}
+
+do_execsql_test 28.3 {
+  ALTER TABLE t1 RENAME a TO a2; -- fails in v3
+} 
+
+do_execsql_test 28.4 {
+  ALTER TABLE t2 RENAME TO t5;
+} 
+
+do_execsql_test 28.5 {
+  SELECT sql FROM sqlite_schema WHERE name='v3'
+} {{CREATE VIEW v3 AS 
+    WITH RECURSIVE t3(x,y,z) AS (
+        SELECT b,c,NULL FROM t4
+        UNION
+        SELECT x,y,NULL FROM t3, "t5"
+    )
+  SELECT * FROM t3 AS xyz}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 30.0 {
+  CREATE TABLE t1(a,b,c,d,e,f);
+  CREATE TABLE t2(a,b,c);
+  CREATE INDEX t1abc ON t1(a,b,c+d+e);
+  CREATE VIEW v1(x,y) AS 
+    SELECT t1.b,t2.b FROM t1,t2 WHERE t1.a=t2.a 
+      GROUP BY 1 HAVING t2.c NOT NULL LIMIT 10;
+  CREATE TRIGGER r1 AFTER INSERT ON t1 WHEN 'no' NOT NULL BEGIN
+    INSERT INTO t2(a,a,b,c) VALUES(new.b,new.a,new.c-7);
+    WITH c1(x) AS (
+      VALUES(0) 
+        UNION ALL 
+      SELECT current_time+x FROM c1 WHERE x 
+        UNION ALL 
+      SELECT 1+x FROM c1 WHERE x<1
+    ), c2(x) AS (VALUES(0),(1))
+    SELECT * FROM c1 AS x1, c2 AS x2, (
+      SELECT x+1 FROM c1 WHERE x IS NOT TRUE 
+        UNION ALL 
+      SELECT 1+x FROM c1 WHERE 1<x
+    ) AS x3, c2 x5;
+  END;
+}
+
+do_execsql_test 30.1 {
+  ALTER TABLE t1 RENAME TO t1x;
+}
+
+do_execsql_test 30.2 {
+  SELECT sql FROM sqlite_schema ORDER BY rowid
+} {
+  {CREATE TABLE "t1x"(a,b,c,d,e,f)} 
+  {CREATE TABLE t2(a,b,c)}
+  {CREATE INDEX t1abc ON "t1x"(a,b,c+d+e)}
+  {CREATE VIEW v1(x,y) AS 
+    SELECT "t1x".b,t2.b FROM "t1x",t2 WHERE "t1x".a=t2.a 
+      GROUP BY 1 HAVING t2.c NOT NULL LIMIT 10}
+  {CREATE TRIGGER r1 AFTER INSERT ON "t1x" WHEN 'no' NOT NULL BEGIN
+    INSERT INTO t2(a,a,b,c) VALUES(new.b,new.a,new.c-7);
+    WITH c1(x) AS (
+      VALUES(0) 
+        UNION ALL 
+      SELECT current_time+x FROM c1 WHERE x 
+        UNION ALL 
+      SELECT 1+x FROM c1 WHERE x<1
+    ), c2(x) AS (VALUES(0),(1))
+    SELECT * FROM c1 AS x1, c2 AS x2, (
+      SELECT x+1 FROM c1 WHERE x IS NOT TRUE 
+        UNION ALL 
+      SELECT 1+x FROM c1 WHERE 1<x
+    ) AS x3, c2 x5;
+  END}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 31.0 {
+  CREATE TABLE t1(q);
+  CREATE VIEW vvv AS WITH x AS (WITH y AS (SELECT * FROM x) SELECT 1) SELECT 1;
+}
+
+do_execsql_test 31.1 {
+  SELECT * FROM vvv;
+} {1}
+
+do_execsql_test 31.2 {
+  ALTER TABLE t1 RENAME TO t1x;
+}
+
+do_execsql_test 31.3 {
+  ALTER TABLE t1x RENAME q TO x;
+}
+
+# 2021-07-02 OSSFuzz https://oss-fuzz.com/testcase-detail/5517690440646656
+# Bad assert() statement
+#
+reset_db
+do_catchsql_test 32.0 {
+  CREATE TABLE t1(x);
+  CREATE TRIGGER r1 BEFORE INSERT ON t1 BEGIN 
+    UPDATE t1 SET x=x FROM (SELECT*);
+  END;
+  ALTER TABLE t1 RENAME TO x;
+} {1 {error in trigger r1: no tables specified}}
+
+# 2023-04-13 https://sqlite.org/forum/forumpost/ff3840145a
+#
+reset_db
+do_execsql_test 33.0 {
+  CREATE TABLE t1(a TEXT);
+  INSERT INTO t1(a) VALUES('abc'),('def'),(NULL);
+  CREATE TABLE t2(b TEXT);
+  CREATE TRIGGER r3 AFTER INSERT ON t1 BEGIN
+   UPDATE t2 SET (b,a)=(SELECT 1) FROM t1 JOIN t2 ON (SELECT * FROM (SELECT a));
+  END;
+}
+do_catchsql_test 33.1 {
+  ALTER TABLE t1 RENAME COLUMN a TO b;
+} {1 {error in trigger r3 after rename: no such column: a}}
+do_execsql_test 33.2 {
+  SELECT quote(a) FROM t1 ORDER BY +a;
+} {NULL 'abc' 'def'}
+
+finish_test
diff --git a/test/altertab2.test b/test/altertab2.test
new file mode 100644
index 0000000000000000000000000000000000000000..576dc49670469c6470c329fe6ba438b3e93303ea
--- /dev/null
+++ b/test/altertab2.test
@@ -0,0 +1,385 @@
+# 2018 September 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix altertab2
+
+# If SQLITE_OMIT_ALTERTABLE is defined, omit this file.
+ifcapable !altertable {
+  finish_test
+  return
+}
+
+ifcapable fts5 {
+  do_execsql_test 1.0 {
+    CREATE TABLE rr(a, b);
+    CREATE VIRTUAL TABLE ff USING fts5(a, b);
+    CREATE TRIGGER tr1 AFTER INSERT ON rr BEGIN
+      INSERT INTO ff VALUES(new.a, new.b);
+    END;
+    INSERT INTO rr VALUES('hello', 'world');
+    SELECT * FROM ff;
+  } {hello world}
+
+  do_execsql_test 1.1 {
+    ALTER TABLE ff RENAME TO ffff;
+  }
+
+  do_execsql_test 1.2 {
+    INSERT INTO rr VALUES('in', 'tcl');
+    SELECT * FROM ffff;
+  } {hello world in tcl}
+}
+
+#-------------------------------------------------------------------------
+# Check that table names that appear in REFERENCES clauses are updated
+# when a table is renamed unless:
+#
+#   a) "PRAGMA legacy_alter_table" is true, and
+#   b) "PRAGMA foreign_keys" is false.
+#
+do_execsql_test 2.0 {
+  CREATE TABLE p1(a PRIMARY KEY, b);
+  CREATE TABLE c1(x REFERENCES p1);
+  CREATE TABLE c2(x, FOREIGN KEY (x) REFERENCES p1);
+  CREATE TABLE c3(x, FOREIGN KEY (x) REFERENCES p1(a));
+}
+
+do_execsql_test 2.1 {
+  ALTER TABLE p1 RENAME TO p2;
+  SELECT sql FROM sqlite_master WHERE name LIKE 'c%';
+} {
+  {CREATE TABLE c1(x REFERENCES "p2")}
+  {CREATE TABLE c2(x, FOREIGN KEY (x) REFERENCES "p2")}
+  {CREATE TABLE c3(x, FOREIGN KEY (x) REFERENCES "p2"(a))}
+}
+
+do_execsql_test 2.2 {
+  PRAGMA legacy_alter_table = 1;
+  ALTER TABLE p2 RENAME TO p3;
+  SELECT sql FROM sqlite_master WHERE name LIKE 'c%';
+} {
+  {CREATE TABLE c1(x REFERENCES "p2")}
+  {CREATE TABLE c2(x, FOREIGN KEY (x) REFERENCES "p2")}
+  {CREATE TABLE c3(x, FOREIGN KEY (x) REFERENCES "p2"(a))}
+}
+
+do_execsql_test 2.3 {
+  ALTER TABLE p3 RENAME TO p2;
+  PRAGMA foreign_keys = 1;
+  ALTER TABLE p2 RENAME TO p3;
+  SELECT sql FROM sqlite_master WHERE name LIKE 'c%';
+} {
+  {CREATE TABLE c1(x REFERENCES "p3")}
+  {CREATE TABLE c2(x, FOREIGN KEY (x) REFERENCES "p3")}
+  {CREATE TABLE c3(x, FOREIGN KEY (x) REFERENCES "p3"(a))}
+}
+
+#-------------------------------------------------------------------------
+# Table name in WITH clauses that are part of views or triggers.
+#
+foreach {tn schema} {
+  1 {
+    CREATE TABLE log_entry(col1, y);
+    CREATE INDEX i1 ON log_entry(col1);
+  }
+
+  2 {
+    CREATE TABLE t1(a, b, c);
+    CREATE TABLE t2(x);
+    CREATE TABLE log_entry(col1);
+    CREATE TRIGGER tr1 AFTER INSERT ON t1 BEGIN
+      INSERT INTO t2 SELECT col1 FROM log_entry;
+    END;
+  }
+
+  3 {
+    CREATE TABLE t1(a, b, c);
+    CREATE TABLE t2(x);
+    CREATE TABLE log_entry(col1);
+    CREATE TRIGGER tr1 AFTER INSERT ON t1 BEGIN
+      INSERT INTO t2
+        WITH xyz(x) AS (SELECT col1 FROM log_entry)
+        SELECT x FROM xyz;
+    END;
+  }
+
+  4 {
+    CREATE TABLE log_entry(col1);
+    CREATE VIEW ttt AS
+        WITH xyz(x) AS (SELECT col1 FROM log_entry)
+        SELECT x FROM xyz;
+  }
+} {
+  reset_db
+  do_execsql_test 3.$tn.1 $schema
+  set expect [db eval "SELECT sql FROM sqlite_master"]
+  set expect [string map {log_entry {"newname"}} $expect]
+
+  do_execsql_test 3.$tn.2 {
+    ALTER TABLE log_entry RENAME TO newname;
+    SELECT sql FROM sqlite_master;
+  } $expect
+
+  reset_db
+  do_execsql_test 3.$tn.3 $schema
+  set expect [db eval "SELECT sql FROM sqlite_master"]
+  set expect [string map {col1 newname} $expect]
+
+  do_execsql_test 3.$tn.4 {
+    ALTER TABLE log_entry RENAME col1 TO newname;
+    SELECT sql FROM sqlite_master;
+  } $expect
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 4.0 {
+  CREATE TABLE t1(a,b,c,d,e,f);
+  CREATE TRIGGER r1 AFTER INSERT ON t1 WHEN new.a NOT NULL BEGIN
+    UPDATE t1 SET (c,d)=(a,b);
+  END;
+}
+
+do_execsql_test 4.1 {
+  ALTER TABLE t1 RENAME TO t1x;
+  SELECT sql FROM sqlite_master WHERE type = 'trigger';
+} {
+{CREATE TRIGGER r1 AFTER INSERT ON "t1x" WHEN new.a NOT NULL BEGIN
+    UPDATE "t1x" SET (c,d)=(a,b);
+  END}
+}
+
+do_execsql_test 4.2 {
+  ALTER TABLE t1x RENAME a TO aaa;
+  SELECT sql FROM sqlite_master WHERE type = 'trigger';
+} {
+{CREATE TRIGGER r1 AFTER INSERT ON "t1x" WHEN new.aaa NOT NULL BEGIN
+    UPDATE "t1x" SET (c,d)=(aaa,b);
+  END}
+}
+
+do_execsql_test 4.3 {
+  ALTER TABLE t1x RENAME d TO ddd;
+  SELECT sql FROM sqlite_master WHERE type = 'trigger';
+} {
+{CREATE TRIGGER r1 AFTER INSERT ON "t1x" WHEN new.aaa NOT NULL BEGIN
+    UPDATE "t1x" SET (c,ddd)=(aaa,b);
+  END}
+}
+
+#-------------------------------------------------------------------------
+ifcapable windowfunc {
+do_execsql_test 5.0 {
+  CREATE TABLE t2(a);
+  CREATE TRIGGER r2 AFTER INSERT ON t2 WHEN new.a NOT NULL BEGIN
+    SELECT a, sum(a) OVER w1 FROM t2
+      WINDOW w1 AS (
+        PARTITION BY a ORDER BY a 
+        ROWS BETWEEN 2 PRECEDING AND 3 FOLLOWING
+      ),
+      w2 AS (
+        PARTITION BY a
+        ORDER BY rowid ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+      );
+  END;
+} {}
+
+do_execsql_test 5.0.1 {
+  INSERT INTO t2 VALUES(1);
+} {}
+
+do_execsql_test 5.1 {
+  ALTER TABLE t2 RENAME TO t2x;
+  SELECT sql FROM sqlite_master WHERE name = 'r2';
+} {
+  {CREATE TRIGGER r2 AFTER INSERT ON "t2x" WHEN new.a NOT NULL BEGIN
+    SELECT a, sum(a) OVER w1 FROM "t2x"
+      WINDOW w1 AS (
+        PARTITION BY a ORDER BY a 
+        ROWS BETWEEN 2 PRECEDING AND 3 FOLLOWING
+      ),
+      w2 AS (
+        PARTITION BY a
+        ORDER BY rowid ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+      );
+  END}
+}
+
+do_execsql_test 5.2 {
+  ALTER TABLE t2x RENAME a TO aaaa;
+  SELECT sql FROM sqlite_master WHERE name = 'r2';
+} {
+  {CREATE TRIGGER r2 AFTER INSERT ON "t2x" WHEN new.aaaa NOT NULL BEGIN
+    SELECT aaaa, sum(aaaa) OVER w1 FROM "t2x"
+      WINDOW w1 AS (
+        PARTITION BY aaaa ORDER BY aaaa 
+        ROWS BETWEEN 2 PRECEDING AND 3 FOLLOWING
+      ),
+      w2 AS (
+        PARTITION BY aaaa
+        ORDER BY rowid ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+      );
+  END}
+}
+
+do_execsql_test 5.3 {
+  INSERT INTO t2x VALUES(1);
+} {}
+} ;# windowfunc
+
+#-------------------------------------------------------------------------
+
+do_execsql_test 6.0 {
+  CREATE TABLE t3(a,b,c,d);
+  CREATE TRIGGER r3 AFTER INSERT ON t3 WHEN new.a NOT NULL BEGIN
+    SELECT a,b,c FROM t3 EXCEPT SELECT a,b,c FROM t3 ORDER BY a;
+    SELECT rowid, * FROM t3;
+  END;
+} {}
+
+do_execsql_test 6.1 {
+  ALTER TABLE t3 RENAME TO t3x;
+  SELECT sql FROM sqlite_master WHERE name = 'r3';
+} {
+  {CREATE TRIGGER r3 AFTER INSERT ON "t3x" WHEN new.a NOT NULL BEGIN
+    SELECT a,b,c FROM "t3x" EXCEPT SELECT a,b,c FROM "t3x" ORDER BY a;
+    SELECT rowid, * FROM "t3x";
+  END}
+}
+
+do_execsql_test 6.2 {
+  ALTER TABLE t3x RENAME a TO abcd;
+  SELECT sql FROM sqlite_master WHERE name = 'r3';
+} {
+  {CREATE TRIGGER r3 AFTER INSERT ON "t3x" WHEN new.abcd NOT NULL BEGIN
+    SELECT abcd,b,c FROM "t3x" EXCEPT SELECT abcd,b,c FROM "t3x" ORDER BY abcd;
+    SELECT rowid, * FROM "t3x";
+  END}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 7.0 {
+  CREATE TABLE t1(a,b,c,d,e,f);
+  INSERT INTO t1 VALUES(1,2,3,4,5,6);
+  CREATE TABLE t2(x,y,z);
+}
+
+do_execsql_test 7.1 {
+  SELECT a,b,c FROM t1 UNION SELECT d,e,f FROM t1 ORDER BY b,c;
+} {1 2 3 4 5 6}
+
+do_execsql_test 7.2 {
+  CREATE TRIGGER r1 AFTER INSERT ON t1 BEGIN
+    INSERT INTO t2
+    SELECT a,b,c FROM t1 UNION SELECT d,e,f FROM t1 ORDER BY b,c;
+  END;
+  INSERT INTO t1 VALUES(2,3,4,5,6,7);
+  SELECT * FROM t2;
+} {1 2 3  2 3 4  4 5 6  5 6 7}
+
+do_execsql_test 7.3 {
+  ALTER TABLE t1 RENAME TO xyzzy;
+  SELECT sql FROM sqlite_master WHERE name='r1'
+} {
+  {CREATE TRIGGER r1 AFTER INSERT ON "xyzzy" BEGIN
+    INSERT INTO t2
+    SELECT a,b,c FROM "xyzzy" UNION SELECT d,e,f FROM "xyzzy" ORDER BY b,c;
+  END}
+}
+
+do_execsql_test 7.3 {
+  ALTER TABLE xyzzy RENAME c TO ccc;
+  SELECT sql FROM sqlite_master WHERE name='r1'
+} {
+  {CREATE TRIGGER r1 AFTER INSERT ON "xyzzy" BEGIN
+    INSERT INTO t2
+    SELECT a,b,ccc FROM "xyzzy" UNION SELECT d,e,f FROM "xyzzy" ORDER BY b,ccc;
+  END}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 8.0 {
+  CREATE TABLE t1(a, b, c); 
+  CREATE TABLE t2(a, b, c); 
+  CREATE TABLE t3(d, e, f);
+  CREATE VIEW v1 AS SELECT * FROM t1;
+  CREATE TRIGGER tr AFTER INSERT ON t3 BEGIN
+    UPDATE t2 SET a = new.d;
+    SELECT a, b, c FROM v1;
+  END;
+}
+
+do_execsql_test 8.1 {
+  INSERT INTO t3 VALUES(1, 2, 3);
+}
+
+# The following ALTER TABLE fails as if column "t1.a" is renamed the "a"
+# in the "SELECT a, b, c FROM v1" within the trigger can no longer be
+# resolved. But at one point there was a bug allowing the ALTER TABLE
+# succeed. Which meant the subsequent INSERT statement would fail.
+do_catchsql_test 8.2 {
+  ALTER TABLE t1 RENAME a TO aaa;
+} {1 {error in trigger tr after rename: no such column: a}}
+do_execsql_test 8.3 {
+  INSERT INTO t3 VALUES(4, 5, 6);
+}
+
+do_execsql_test 8.4 {
+  CREATE TABLE t4(a, b);
+  CREATE VIEW v4 AS SELECT * FROM t4 WHERE (a=1 AND 0) OR b=2;
+}
+
+# Branches of an expression tree that are optimized out by the AND 
+# optimization are renamed.
+#
+do_execsql_test 8.5 {
+  ALTER TABLE t4 RENAME a TO c;
+  SELECT sql FROM sqlite_master WHERE name = 'v4'
+} {{CREATE VIEW v4 AS SELECT * FROM t4 WHERE (c=1 AND 0) OR b=2}}
+
+# 2019-06-10 https://www.sqlite.org/src/info/533010b8cacebe82
+reset_db
+do_catchsql_test 8.6 {
+  CREATE TABLE t0(c0);
+  CREATE INDEX i0 ON t0(likelihood(1,2) AND 0);
+  ALTER TABLE t0 RENAME TO t1;
+  SELECT sql FROM sqlite_master WHERE name='i0';
+} {1 {error in index i0: second argument to likelihood() must be a constant between 0.0 and 1.0}}
+
+
+reset_db
+
+do_execsql_test 9.0 {
+  CREATE TABLE t1(a,b,c,d);
+  CREATE TABLE t2(a,b,c,d,x);
+
+  CREATE TRIGGER AFTER INSERT ON t2 BEGIN
+
+    SELECT group_conct(
+        123 ORDER BY (
+          SELECT 1 FROM ( VALUES(a, 'b'), ('c') )
+          )) 
+    FROM t1;
+
+  END;
+}
+
+do_catchsql_test 9.1 {
+  ALTER TABLE t2 RENAME TO newname;
+} {1 {error in trigger AFTER: all VALUES must have the same number of terms}}
+
+finish_test
diff --git a/test/altertab3.test b/test/altertab3.test
new file mode 100644
index 0000000000000000000000000000000000000000..5f5c11b0bb3361959a7c12c1ba01f036f93f5e4d
--- /dev/null
+++ b/test/altertab3.test
@@ -0,0 +1,789 @@
+# 2019 January 23
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix altertab3
+
+# If SQLITE_OMIT_ALTERTABLE is defined, omit this file.
+ifcapable !altertable {
+  finish_test
+  return
+}
+
+ifcapable windowfunc {
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b);
+  CREATE TRIGGER tr1 AFTER INSERT ON t1 BEGIN
+    SELECT sum(b) OVER w FROM t1 WINDOW w AS (ORDER BY a);
+  END;
+}
+
+do_execsql_test 1.1 {
+  ALTER TABLE t1 RENAME a TO aaa;
+}
+
+do_execsql_test 1.2 {
+  SELECT sql FROM sqlite_master WHERE name='tr1'
+} {{CREATE TRIGGER tr1 AFTER INSERT ON t1 BEGIN
+    SELECT sum(b) OVER w FROM t1 WINDOW w AS (ORDER BY aaa);
+  END}}
+
+do_execsql_test 1.3 {
+  INSERT INTO t1 VALUES(1, 2);
+}
+} ;# windowfunc
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 2.0 {
+  CREATE TABLE t1(a,b,c);
+  CREATE TABLE t2(a,b,c);
+  CREATE TRIGGER r1 AFTER INSERT ON t1 WHEN new.a NOT NULL BEGIN
+    SELECT a,b, a name FROM t1 
+      INTERSECT 
+    SELECT a,b,c FROM t1 WHERE b>='d' ORDER BY name;
+    SELECT new.c;
+  END;
+}
+
+do_execsql_test 2.1 {
+  ALTER TABLE t1 RENAME TO t1x;
+  SELECT sql FROM sqlite_master WHERE name = 'r1';
+} {{CREATE TRIGGER r1 AFTER INSERT ON "t1x" WHEN new.a NOT NULL BEGIN
+    SELECT a,b, a name FROM "t1x" 
+      INTERSECT 
+    SELECT a,b,c FROM "t1x" WHERE b>='d' ORDER BY name;
+    SELECT new.c;
+  END}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 3.0 {
+  CREATE TABLE t1(a, b, c, d);
+  CREATE VIEW v1 AS SELECT * FROM t1 WHERE a=1 OR (b IN ());
+}
+
+do_execsql_test 3.1 {
+  ALTER TABLE t1 RENAME b TO bbb;
+}
+
+do_execsql_test 3.2 {
+  SELECT sql FROM sqlite_master WHERE name = 'v1'
+} {{CREATE VIEW v1 AS SELECT * FROM t1 WHERE a=1 OR (b IN ())}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 4.0 {
+  CREATE TABLE t1(a, b);
+  CREATE TABLE t3(e, f);
+  CREATE TRIGGER tr1 AFTER INSERT ON t1 BEGIN
+    INSERT INTO t2 VALUES(new.a, new.b);
+  END;
+}
+
+do_catchsql_test 4.1.2 {
+  BEGIN;
+    ALTER TABLE t3 RENAME TO t4;
+} {1 {error in trigger tr1: no such table: main.t2}}
+do_execsql_test 4.1.2 {
+  COMMIT;
+}
+do_execsql_test 4.1.3 {
+  SELECT type, name, tbl_name, sql 
+  FROM sqlite_master WHERE type='table' AND name!='t1';
+} {table t3 t3 {CREATE TABLE t3(e, f)}}
+
+
+do_catchsql_test 4.2.1 {
+  BEGIN;
+    ALTER TABLE t3 RENAME e TO eee;
+} {1 {error in trigger tr1: no such table: main.t2}}
+do_execsql_test 4.2.2 {
+  COMMIT;
+}
+do_execsql_test 4.2.3 {
+  SELECT type, name, tbl_name, sql 
+  FROM sqlite_master WHERE type='table' AND name!='t1';
+} {table t3 t3 {CREATE TABLE t3(e, f)}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 5.0 {
+  CREATE TABLE t1 (
+      c1 integer, c2, PRIMARY KEY(c1 collate rtrim),
+      UNIQUE(c2)
+  )
+}
+do_execsql_test 5.1 {
+  ALTER TABLE t1 RENAME c1 TO c3;
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 6.0 {
+  CREATE TEMPORARY TABLE Table0 (
+    Col0 INTEGER, 
+    PRIMARY KEY(Col0 COLLATE RTRIM), 
+    FOREIGN KEY (Col0) REFERENCES Table0
+  );
+}
+
+do_execsql_test 6.1 {
+  ALTER TABLE Table0 RENAME Col0 TO Col0;
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 7.1.0 {
+  CREATE TABLE t1(a,b,c);
+  CREATE TRIGGER AFTER INSERT ON t1 BEGIN
+    SELECT a, rank() OVER w1 FROM t1
+    WINDOW w1 AS (PARTITION BY b, percent_rank() OVER w1);
+  END;
+}
+
+do_execsql_test 7.1.2 {
+  ALTER TABLE t1 RENAME TO t1x;
+  SELECT sql FROM sqlite_master;
+} {
+  {CREATE TABLE "t1x"(a,b,c)}
+  {CREATE TRIGGER AFTER INSERT ON "t1x" BEGIN
+    SELECT a, rank() OVER w1 FROM "t1x"
+    WINDOW w1 AS (PARTITION BY b, percent_rank() OVER w1);
+  END}
+}
+
+do_execsql_test 7.2.1 {
+  DROP TRIGGER after;
+  CREATE TRIGGER AFTER INSERT ON t1x BEGIN
+    SELECT a, rank() OVER w1 FROM t1x
+    WINDOW w1 AS (PARTITION BY b, percent_rank() OVER w1 ORDER BY d);
+  END;
+}
+
+do_catchsql_test 7.2.2 {
+  ALTER TABLE t1x RENAME TO t1;
+} {1 {error in trigger AFTER: no such column: d}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 8.0 {
+  CREATE TABLE t0(c0);
+  CREATE INDEX i0 ON t0('1' IN ());
+}
+do_execsql_test 8.1 {
+  ALTER TABLE t0 RENAME TO t1;
+  SELECT sql FROM sqlite_master;
+} {
+  {CREATE TABLE "t1"(c0)}
+  {CREATE INDEX i0 ON "t1"('1' IN ())}
+}
+do_execsql_test 8.2.1 {
+  CREATE TABLE t2 (c0);
+  CREATE INDEX i2 ON t2((LIKELIHOOD(c0, 100) IN ()));
+  ALTER TABLE t2 RENAME COLUMN c0 TO c1;
+}
+do_execsql_test 8.2.2 {
+  SELECT sql FROM sqlite_master WHERE tbl_name = 't2';
+} {
+  {CREATE TABLE t2 (c1)} 
+  {CREATE INDEX i2 ON t2((LIKELIHOOD(c0, 100) IN ()))}
+}
+do_test 8.2.3 {
+  sqlite3 db2 test.db
+  db2 eval { INSERT INTO t2 VALUES (1), (2), (3) }
+  db close
+} {}
+db2 close
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 9.1 {
+  CREATE TABLE t1(a,b,c);
+  CREATE TRIGGER AFTER INSERT ON t1 WHEN new.a NOT NULL BEGIN
+    SELECT true WHERE (SELECT a, b FROM (t1)) IN ();
+  END;
+}
+do_execsql_test 9.2 {
+  ALTER TABLE t1 RENAME TO t1x;
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 10.1 {
+  CREATE TABLE t1(a, b, c);
+  CREATE TABLE t2(a, b, c);
+  CREATE VIEW v1 AS SELECT * FROM t1 WHERE (
+    SELECT t1.a FROM t1, t2
+  ) IN () OR t1.a=5;
+}
+
+do_execsql_test 10.2 {
+  ALTER TABLE t2 RENAME TO t3;
+  SELECT sql FROM sqlite_master WHERE name='v1';
+} {
+  {CREATE VIEW v1 AS SELECT * FROM t1 WHERE (
+    SELECT t1.a FROM t1, t2
+  ) IN () OR t1.a=5}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 11.1 {
+  CREATE TABLE t1(
+      a,b,c,d,e,f,g,h,j,jj,jjb,k,aa,bb,cc,dd,ee DEFAULT 3.14,
+      ff DEFAULT('hiccup'),Wg NOD NULL DEFAULT(false)
+  );
+
+  CREATE TRIGGER b AFTER INSERT ON t1 WHEN new.a BEGIN
+    SELECT a, sum() w3 FROM t1 
+    WINDOW b AS (ORDER BY NOT EXISTS(SELECT 1 FROM abc));
+  END;
+}
+
+do_catchsql_test 11.2 {
+  ALTER TABLE t1 RENAME TO t1x;
+} {1 {error in trigger b: no such table: main.abc}}
+
+do_execsql_test 11.3 {
+  DROP TRIGGER b;
+  CREATE TRIGGER b AFTER INSERT ON t1 WHEN new.a BEGIN
+    SELECT a, sum() w3 FROM t1 
+    WINDOW b AS (ORDER BY NOT EXISTS(SELECT 1 FROM t1));
+  END;
+} {}
+
+do_execsql_test 11.4 {
+  ALTER TABLE t1 RENAME TO t1x;
+  SELECT sql FROM sqlite_master WHERE name = 'b';
+} {
+{CREATE TRIGGER b AFTER INSERT ON "t1x" WHEN new.a BEGIN
+    SELECT a, sum() w3 FROM "t1x" 
+    WINDOW b AS (ORDER BY NOT EXISTS(SELECT 1 FROM "t1x"));
+  END}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 12.1 {
+CREATE TABLE t1(a,b,c,d,e,f,g,h,j,jj,Zjj,k,aQ,bb,cc,dd,ee DEFAULT 3.14,
+ff DEFAULT('hiccup'),gg NOD NULL DEFAULT(false));
+CREATE TRIGGER AFTER INSERT ON t1 WHEN new.a NOT NULL BEGIN
+
+SELECT b () OVER , dense_rank() OVER d, d () OVER w1
+FROM t1
+WINDOW
+w1 AS
+( w1 ORDER BY d
+ROWS BETWEEN 2 NOT IN(SELECT a, sum(d) w2,max(d)OVER FROM t1
+WINDOW
+w1 AS
+(PARTITION BY d
+ROWS BETWEEN '' PRECEDING AND false FOLLOWING),
+d AS
+(PARTITION BY b ORDER BY d
+ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+) PRECEDING AND 1 FOLLOWING),
+w2 AS
+(PARTITION BY b ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW),
+w3 AS
+(PARTITION BY b ORDER BY d
+ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING)
+;
+SELECT a, sum(d) w2,max(d)OVER FROM t1
+WINDOW
+w1 AS
+(PARTITION BY d
+ROWS BETWEEN '' PRECEDING AND false FOLLOWING),
+d AS
+(PARTITION BY b ORDER BY d
+ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+;
+
+END;
+}
+
+do_execsql_test 12.2 {
+  ALTER TABLE t1 RENAME TO t1x;
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 13.1 {
+  CREATE TABLE t1(a);
+  CREATE TRIGGER r1 INSERT ON t1 BEGIN
+    SELECT a(*) OVER (ORDER BY (SELECT 1)) FROM t1;
+  END;
+}
+
+do_execsql_test 13.2 {
+  ALTER TABLE t1 RENAME TO t1x;
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 14.1 {
+  CREATE TABLE t1(a);
+  CREATE TABLE t2(b);
+  CREATE TRIGGER AFTER INSERT ON t1 BEGIN
+    SELECT sum() FILTER (WHERE (SELECT sum() FILTER (WHERE 0)) AND a);
+  END;
+}
+
+do_catchsql_test 14.2 {
+  ALTER TABLE t1 RENAME TO t1x;
+} {1 {error in trigger AFTER: no such column: a}}
+
+#-------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 16.1 {
+  CREATE TABLE t1(x);
+  CREATE TRIGGER AFTER INSERT ON t1 BEGIN
+    SELECT (WITH t2 AS (WITH t3 AS (SELECT true)
+          SELECT * FROM t3 ORDER BY true COLLATE nocase)
+        SELECT 11);
+
+    WITH t4 AS (SELECT * FROM t1) SELECT 33;
+  END;
+}
+do_execsql_test 16.2 {
+  ALTER TABLE t1 RENAME TO t1x;
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 17.1 {
+  CREATE TABLE t1(a,b,c);
+  CREATE TRIGGER AFTER INSERT ON t1 WHEN new.a NOT NULL BEGIN
+    SELECT a () FILTER (WHERE a>0) FROM t1;
+  END;
+}
+
+do_execsql_test 17.2 {
+  ALTER TABLE t1 RENAME TO t1x;
+  ALTER TABLE t1x RENAME a TO aaa;
+  SELECT sql FROM sqlite_master WHERE type='trigger';
+} {
+{CREATE TRIGGER AFTER INSERT ON "t1x" WHEN new.aaa NOT NULL BEGIN
+    SELECT a () FILTER (WHERE aaa>0) FROM "t1x";
+  END}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 18.1 {
+  CREATE TABLE t1(a,b);
+  CREATE TRIGGER r1 AFTER INSERT ON t1 BEGIN
+    SELECT a, b FROM t1
+    INTERSECT SELECT b,a FROM t1
+    ORDER BY b IN (
+        SELECT a UNION SELECT b
+        FROM t1
+        ORDER BY b COLLATE nocase
+        )
+    ;
+  END;
+}
+
+do_catchsql_test 18.2 {
+    SELECT a, b FROM t1
+    INTERSECT 
+    SELECT b,a FROM t1
+    ORDER BY b IN (
+        SELECT a UNION SELECT b
+        FROM t1
+        ORDER BY b COLLATE nocase
+        );
+} {1 {1st ORDER BY term does not match any column in the result set}}
+
+do_catchsql_test 18.3 {
+  ALTER TABLE t1 RENAME TO t1x;
+} {1 {error in trigger r1: 1st ORDER BY term does not match any column in the result set}}
+
+#-------------------------------------------------------------------------
+reset_db 
+do_execsql_test 19.0 {
+  CREATE TABLE a(a,h CONSTRAINT a UNIQUE ON CONFLICT FAIL,CONSTRAINT a);
+}
+
+foreach {tn v res} {
+  1 {
+    CREATE VIEW q AS SELECT 123
+    
+      WINDOW x AS (
+        RANGE BETWEEN UNBOUNDED PRECEDING AND INDEXED() OVER(
+          PARTITION BY ( WITH x AS(VALUES(col1)) VALUES(453) )
+        )
+      FOLLOWING
+    ) 
+  } {1 {error in view q: no such column: col1}}
+
+  2 {
+    CREATE VIEW q AS SELECT
+    CAST(CAST(CAST(CAST(CAST(CAST(CAST(CAST(CAST(CAST(CAST(RIGHT
+    AS)AS)AS)AS)AS)AS)AS)AS)AS)AS)AS)WINDOW x AS(RANGE BETWEEN UNBOUNDED
+    PRECEDING AND INDEXED(*)OVER(PARTITION BY
+    CROSS,CROSS,NATURAL,sqlite_master(*)OVER a,(WITH a AS(VALUES(LEFT)UNION
+    VALUES(LEFT)UNION VALUES(LEFT)UNION VALUES(LEFT)UNION VALUES(LEFT)UNION
+    VALUES(LEFT)UNION VALUES(LEFT))VALUES(LEFT))IN
+    STORED,LEFT,LEFT,LEFT,LEFT,LEFT,LEFT)*LEFT FOLLOWING)ORDER BY
+    LEFT,LEFT,LEFT,LEFT,LEFT,LEFT,LEFT,LEFT,LEFT,LEFT,LEFT LIMIT
+    LEFT,INDEXED(*)OVER(PARTITION BY
+    CROSS,CROSS,CROSS,LEFT,INDEXED(*)OVER(PARTITION BY
+    CROSS,CROSS,CROSS),INDEXED(*)OVER(PARTITION BY
+    LEFT,LEFT,LEFT,LEFT,LEFT,LEFT,LEFT,LEFT,LEFT,LEFT,LEFT),
+    LEFT,LEFT,INNER,CROSS,CROSS,CROSS,INNER,NATURAL ORDER BY
+    OUTER,NATURAL,NATURAL,NATURAL,NATURAL,NATURAL,NATURAL,NATURAL,INNER,
+    INNER,INNER NULLS LAST GROUPS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED
+    FOLLOWING); 
+  } {1 {error in view q: no such column: LEFT}}
+
+  3 {
+    CREATE VIEW q AS SELECT 99 WINDOW x AS (RANGE BETWEEN UNBOUNDED PRECEDING
+    AND count(*)OVER(PARTITION BY (WITH a AS(VALUES(2),(x3))VALUES(0)))
+    FOLLOWING)ORDER BY x2,sum(1)OVER(PARTITION BY avg(5)OVER(PARTITION BY x1));
+  } {1 {error in view q: no such column: x3}}
+} {
+  do_execsql_test 19.$tn.1 "
+    DROP VIEW IF EXISTS q;
+    $v
+  " {}
+
+  do_catchsql_test 19.$tn.2 {
+    ALTER TABLE a RENAME TO g;
+  } $res
+}
+
+# Verify that the "if( pParse->nErr ) return WRC_Abort" at the top of the
+# renameUnmapSelectCb() routine in alter.c (2019-12-04) is really required.
+#
+sqlite3 db :memory:
+do_catchsql_test 20.10 {
+  CREATE TABLE s(a, b, c);
+  CREATE INDEX k ON s( (WITH s AS( SELECT * ) VALUES(2) ) IN () );
+  ALTER TABLE s RENAME a TO a2;
+} {1 {error in index k: no tables specified}}
+
+#------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 21.1 {
+  CREATE TABLE s(col);
+  CREATE VIEW v AS SELECT ( 
+    WITH x(a) AS(SELECT * FROM s) VALUES(RIGHT) 
+  ) IN() ; 
+  CREATE TABLE a(a);
+  ALTER TABLE a RENAME a TO b;
+}
+
+#------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 22.1 {
+  CREATE TABLE t1(a);
+  CREATE VIEW v2(b) AS SELECT * FROM v2;
+}
+
+do_catchsql_test 22.2 {
+  ALTER TABLE t1 RENAME TO t4;
+} {1 {error in view v2: view v2 is circularly defined}}
+
+do_execsql_test 22.3 {
+  DROP VIEW v2;
+  CREATE VIEW v2(b) AS WITH t3 AS (SELECT b FROM v2) SELECT * FROM t3;
+}
+
+do_catchsql_test 22.4 {
+  ALTER TABLE t1 RENAME TO t4;
+} {1 {error in view v2: view v2 is circularly defined}}
+
+do_execsql_test 22.5 {
+  DROP VIEW v2;
+  CREATE VIEW v2(b) AS WITH t3 AS (SELECT b FROM v2) VALUES(1);
+}
+
+do_catchsql_test 22.6 {
+  ALTER TABLE t1 RENAME TO t4;
+} {0 {}}
+
+#------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 23.1 {
+  CREATE TABLE t1(x);
+  CREATE TRIGGER r1 AFTER INSERT ON t1 BEGIN
+    UPDATE t1 SET (c,d)=((SELECT 1 FROM t1 JOIN t2 ON b=x),1);
+  END;
+}
+
+do_catchsql_test 23.2 {
+  ALTER TABLE t1 RENAME TO t1x;
+} {1 {error in trigger r1: no such table: main.t2}}
+
+#------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 23.1 {
+  CREATE TABLE v0 (a);
+  CREATE VIEW v2 (v3) AS 
+    WITH x1 AS (SELECT * FROM v2) 
+    SELECT v3 AS x, v3 AS y FROM v2; 
+}
+
+do_catchsql_test 23.2 {
+  SELECT * FROM v2
+} {1 {view v2 is circularly defined}}
+
+db close
+sqlite3 db test.db
+
+do_catchsql_test 23.3 {
+  ALTER TABLE v0 RENAME TO t3 ;
+} {1 {error in view v2: view v2 is circularly defined}}
+
+#------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 24.1 {
+  CREATE TABLE v0 (v1); 
+  CREATE TABLE v2 (v3 INTEGER UNIQUE ON CONFLICT ABORT); 
+  CREATE TRIGGER x AFTER INSERT ON v2 WHEN ( 
+      ( SELECT v1 AS PROMO_REVENUE FROM v2 JOIN v0 USING ( VALUE ) ) AND 0 ) 
+  BEGIN 
+    DELETE FROM v2; 
+  END; 
+}
+do_catchsql_test 24.2 {
+  ALTER TABLE v0 RENAME TO x ;
+} {1 {error in trigger x: cannot join using column VALUE - column not present in both tables}}
+
+do_execsql_test 24.3 {
+  DROP TRIGGER x;
+  CREATE TRIGGER x AFTER INSERT ON v2 WHEN (
+    0 AND (SELECT rowid FROM v0)
+  ) BEGIN
+    DELETE FROM v2;
+  END;
+}
+
+do_execsql_test 24.4 {
+  ALTER TABLE v0 RENAME TO xyz;
+  SELECT sql FROM sqlite_master WHERE type='trigger'
+} {{CREATE TRIGGER x AFTER INSERT ON v2 WHEN (
+    0 AND (SELECT rowid FROM "xyz")
+  ) BEGIN
+    DELETE FROM v2;
+  END}}
+
+#------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 25.1 {
+  CREATE TABLE t1(a, b, c);
+  CREATE TABLE t2(a, b, c);
+  CREATE TRIGGER ttt AFTER INSERT ON t1 BEGIN
+    UPDATE t1 SET a=t2.a FROM t2 WHERE t1.a=t2.a; 
+  END;
+}
+#do_execsql_test 25.2 {
+#  ALTER TABLE t2 RENAME COLUMN a TO aaa;
+#}
+
+#------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 26.1 {
+  CREATE TABLE t1(x);
+
+  CREATE TABLE t3(y);
+  CREATE TABLE t4(z);
+
+  CREATE TRIGGER tr1 INSERT ON t3 BEGIN
+    UPDATE t3 SET y=z FROM (SELECT z FROM t4);
+  END;
+
+  CREATE TRIGGER tr2 INSERT ON t3 BEGIN
+    UPDATE t3 SET y=abc FROM (SELECT x AS abc FROM t1);
+  END;
+}
+
+do_execsql_test 26.2 {
+  ALTER TABLE t1 RENAME TO t2;
+}
+
+do_execsql_test 26.3 {
+  ALTER TABLE t2 RENAME x TO xx;
+}
+
+do_execsql_test 26.4 {
+  SELECT sql FROM sqlite_schema WHERE name='tr2'
+} {
+{CREATE TRIGGER tr2 INSERT ON t3 BEGIN
+    UPDATE t3 SET y=abc FROM (SELECT xx AS abc FROM "t2");
+  END}
+}
+
+# 2020-11-02 OSSFuzz 
+#
+reset_db
+do_execsql_test 26.5 {
+  CREATE TABLE t1(xx);
+  CREATE TRIGGER xx INSERT ON t1 BEGIN
+     UPDATE t1 SET xx=xx FROM(SELECT xx);
+  END;
+} {}
+do_catchsql_test 26.6 {
+  ALTER TABLE t1 RENAME TO t2;
+} {1 {error in trigger xx: no such column: xx}}
+
+
+#-------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 27.1 {
+  CREATE TABLE t1(a, b AS ((WITH w1 (xyz) AS  ( SELECT t1.b FROM t1 )  SELECT 123) IN ()), c);
+}
+
+do_execsql_test 27.2 {
+  ALTER TABLE t1 DROP COLUMN c;
+  SELECT sql FROM sqlite_schema WHERE name = 't1';
+} {
+  {CREATE TABLE t1(a, b AS ((WITH w1 (xyz) AS  ( SELECT t1.b FROM t1 )  SELECT 123) IN ()))}
+}
+
+do_execsql_test 27.3 {
+  CREATE TABLE t0(c0 , c1 AS (CASE TRUE   NOT IN () WHEN NULL   THEN CASE + 0xa     ISNULL  WHEN NOT + 0x9     THEN t0.c1  ELSE CURRENT_TIME   LIKE CAST (t0.c1 REGEXP '-([1-9]\d*.\d*|0\.\d*[1-9]\d*)'ESCAPE (c1) COLLATE BINARY  BETWEEN c1  AND c1   NOT IN (WITH t4 (c0) AS  (WITH t3 (c0) AS NOT MATERIALIZED  (WITH RECURSIVE t2 (c0) AS  (WITH RECURSIVE t1 AS  (VALUES (x'717171ff71717171' )  )  SELECT DISTINCT t0.c0  FROM t0 NOT INDEXED  WHERE t0.c0 =t0.c0 GROUP BY 0x9      )  SELECT DISTINCT t0.c0  FROM t0 NOT INDEXED  WHERE t0.c0 =t0.c1   )  SELECT DISTINCT t0.c0  FROM t0 NOT INDEXED  WHERE t0.c0 =t0.c0 GROUP BY typeof(0x9   )    )  SELECT DISTINCT t0.c0  FROM t0 NOT INDEXED  WHERE t0.c0 =t0.c0 GROUP BY typeof(typeof(0x9    )  )    ) IN t0   BETWEEN typeof(typeof(typeof(hex(*) FILTER (WHERE + x'5ccd1e68'   )  )  )  )  AND 1   >0xa      AS BLOB (+4.4E4 , -0xe  ) )  END  <> c1  IN ()  END  ) VIRTUAL   , c35 PRIMARY KEY   ,  c60 , c64 NUMERIC (-6.8 , -0xE  )  ) WITHOUT ROWID ;
+} {}
+
+do_execsql_test 27.4 {
+  ALTER TABLE t0 DROP COLUMN c60;
+} {}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 28.1 {
+  CREATE TABLE t1(a,b,c,d);
+  CREATE TRIGGER AFTER INSERT ON t1 BEGIN
+    UPDATE t1 SET (c,d)=(a,b);
+  END;
+  ALTER TABLE t1 RENAME TO t2;
+}
+
+do_execsql_test 28.2 {
+  SELECT sql FROM sqlite_schema WHERE type='trigger'
+} {{CREATE TRIGGER AFTER INSERT ON "t2" BEGIN
+    UPDATE "t2" SET (c,d)=(a,b);
+  END}}
+
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 29.1 {
+  CREATE TABLE t1(x, y);
+  CREATE TRIGGER Trigger1 DELETE ON t1 
+  BEGIN 
+    SELECT t1.*, t1.x FROM t1 ORDER BY t1.x;
+  END;
+}
+
+
+do_execsql_test 29.2 {
+  ALTER TABLE t1 RENAME x TO z;
+}
+
+do_execsql_test 29.3 {
+  ALTER TABLE t1 RENAME TO t2;
+}
+
+do_execsql_test 29.4 {
+  CREATE TRIGGER tr2 AFTER DELETE ON t2 BEGIN
+    SELECT z, y FROM (
+      SELECT t2.* FROM t2
+    );
+  END;
+}
+
+do_execsql_test 29.5 {
+  DELETE FROM t2
+}
+
+do_execsql_test 29.6 {
+  ALTER TABLE t2 RENAME TO t3;
+}
+
+do_execsql_test 29.7 {
+  SELECT sql FROM sqlite_schema WHERE type='trigger'
+} {
+  {CREATE TRIGGER Trigger1 DELETE ON "t3" 
+  BEGIN 
+    SELECT "t3".*, "t3".z FROM "t3" ORDER BY "t3".z;
+  END}
+  {CREATE TRIGGER tr2 AFTER DELETE ON "t3" BEGIN
+    SELECT z, y FROM (
+      SELECT "t3".* FROM "t3"
+    );
+  END}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 30.0 {
+  CREATE TABLE t1(a, b);
+  CREATE VIEW v1 AS 
+      SELECT ( VALUES(a), (b) ) FROM (
+        SELECT a, b FROM t1
+      )
+  ;
+}
+
+do_execsql_test 30.1 {
+  SELECT * FROM v1
+}
+
+do_execsql_test 30.1 {
+  ALTER TABLE t1 RENAME TO t2;
+}
+do_execsql_test 30.2 {
+  SELECT sql FROM sqlite_schema WHERE type='view'
+} {
+  {CREATE VIEW v1 AS 
+      SELECT ( VALUES(a), (b) ) FROM (
+        SELECT a, b FROM "t2"
+      )}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 31.0 {
+  CREATE TABLE t1(ii INTEGER PRIMARY KEY, tt INTEGER, rr REAL);
+  WITH s(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<50000
+  )
+  INSERT INTO t1 SELECT NULL, i, 5.0 FROM s;
+}
+
+do_test 31.1 {
+  set pg [db one {PRAGMA page_count}]
+  execsql {
+    ALTER TABLE t1 DROP COLUMN tt;
+  }
+  set pg2 [db one {PRAGMA page_count}]
+  expr $pg==$pg2
+} {1}
+
+do_execsql_test 31.2 {
+  SELECT rr FROM t1 LIMIT 1
+} {5.0}
+
+finish_test
diff --git a/test/altertrig.test b/test/altertrig.test
new file mode 100644
index 0000000000000000000000000000000000000000..556dc3fea4c21a440b2a2fb6df43f1ea716fd92b
--- /dev/null
+++ b/test/altertrig.test
@@ -0,0 +1,162 @@
+# 2022 May 27
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix altertrig
+
+# If SQLITE_OMIT_ALTERTABLE is defined, omit this file.
+ifcapable !altertable {
+  finish_test
+  return
+}
+
+proc collapse_whitespace {in} {
+  regsub -all {[ \t\n]+} [string trim $in] { }
+}
+
+proc do_whitespace_sql_test {tn sql res} {
+  set got [execsql $sql]
+  set wgot [list]
+  set wres [list]
+  foreach g $got { lappend wgot [collapse_whitespace $g] }
+  foreach r $res { lappend wres [collapse_whitespace $r] }
+
+  uplevel [list do_test $tn [list set {} $wgot] $wres]
+}
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(x);
+  CREATE TABLE t2(y);
+  CREATE TABLE t3(z);
+  CREATE TABLE t4(a);
+
+  CREATE TRIGGER r1 INSERT ON t1 BEGIN 
+    UPDATE t1 SET d='xyz' FROM t2, t3; 
+  END;
+}
+
+do_whitespace_sql_test 1.1 {
+  ALTER TABLE t3 RENAME TO t5;
+  SELECT sql FROM sqlite_schema WHERE type='trigger';
+} {{
+  CREATE TRIGGER r1 INSERT ON t1 BEGIN 
+    UPDATE t1 SET d='xyz' FROM t2, "t5"; 
+  END
+}}
+
+do_execsql_test 1.2 {
+  DROP TRIGGER r1;
+  CREATE TRIGGER r1 INSERT ON t1 BEGIN 
+    UPDATE t1 SET d='xyz' FROM t2, (SELECT * FROM t5); 
+  END;
+}
+
+do_whitespace_sql_test 1.3 {
+  ALTER TABLE t5 RENAME TO t3;
+  SELECT sql FROM sqlite_schema WHERE type='trigger';
+} {{
+  CREATE TRIGGER r1 INSERT ON t1 BEGIN 
+    UPDATE t1 SET d='xyz' FROM t2, (SELECT * FROM "t3"); 
+  END
+}}
+
+foreach {tn alter update final} {
+  1 {
+    ALTER TABLE t3 RENAME TO t10
+  } {
+    UPDATE t1 SET d='xyz' FROM t2, (SELECT * FROM t3)
+  } {
+    UPDATE t1 SET d='xyz' FROM t2, (SELECT * FROM "t10")
+  }
+
+  2 {
+    ALTER TABLE t3 RENAME TO t10
+  } {
+    UPDATE t1 SET a='xyz' FROM t3, (SELECT * FROM (SELECT e FROM t3))
+  } {
+    UPDATE t1 SET a='xyz' FROM "t10", (SELECT * FROM (SELECT e FROM "t10"))
+  }
+
+  3 {
+    ALTER TABLE t3 RENAME e TO abc
+  } {
+    UPDATE t1 SET a='xyz' FROM t3, (SELECT * FROM (SELECT e FROM t3))
+  } {
+    UPDATE t1 SET a='xyz' FROM t3, (SELECT * FROM (SELECT abc FROM t3))
+  }
+
+  4 {
+    ALTER TABLE t2 RENAME c TO abc
+  } {
+    UPDATE t1 SET a='xyz' FROM t3, (SELECT 1 FROM t2 WHERE c)
+  } {
+    UPDATE t1 SET a='xyz' FROM t3, (SELECT 1 FROM t2 WHERE abc)
+  }
+
+  5 {
+    ALTER TABLE t2 RENAME c TO abc
+  } {
+    UPDATE t1 SET a=t2.c FROM t2
+  } {
+    UPDATE t1 SET a=t2.abc FROM t2
+  }
+
+  6 {
+    ALTER TABLE t2 RENAME c TO abc
+  } {
+    UPDATE t1 SET a=t2.c FROM t2, t3
+  } {
+    UPDATE t1 SET a=t2.abc FROM t2, t3
+  }
+
+  7 {
+    ALTER TABLE t4 RENAME e TO abc
+  } {
+    UPDATE t1 SET a=1 FROM t3 NATURAL JOIN t4 WHERE t4.e=a
+  } {
+    UPDATE t1 SET a=1 FROM t3 NATURAL JOIN t4 WHERE t4.abc=a
+  }
+
+  8 {
+    ALTER TABLE t4 RENAME TO abc
+  } {
+    UPDATE t1 SET a=1 FROM t3 NATURAL JOIN t4 WHERE t4.e=a
+  } {
+    UPDATE t1 SET a=1 FROM t3 NATURAL JOIN "abc" WHERE "abc".e=a
+  }
+ 
+} {
+  reset_db
+  do_execsql_test 2.$tn.1 {
+    CREATE TABLE t1(a,b);
+    CREATE TABLE t2(c,d);
+    CREATE TABLE t3(e,f);
+    CREATE TABLE t4(e,f);
+  }
+  do_execsql_test 2.$tn.2 "
+    CREATE TRIGGER r1 INSERT ON t1 BEGIN 
+      $update;
+    END
+  "
+  do_execsql_test 2.$tn.3 $alter
+
+  do_whitespace_sql_test 2.$tn.4 {
+    SELECT sqL FROM sqlite_schema WHERE type='trigger'
+  } "{
+    CREATE TRIGGER r1 INSERT ON t1 BEGIN 
+      $final;
+    END
+  }"
+}
+
+finish_test
diff --git a/test/amatch1.test b/test/amatch1.test
new file mode 100644
index 0000000000000000000000000000000000000000..cc0f77af107688e3fa1e6ae906b58f71e8dd11c1
--- /dev/null
+++ b/test/amatch1.test
@@ -0,0 +1,117 @@
+# 2013-09-30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for "approximate_match" virtual
+# table that is in the "amatch.c" extension.
+#
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If SQLITE_ENABLE_FTS4 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+# Create the fts_kjv_genesis procedure which fills and FTS3/4 table with
+# the complete text of the Book of Genesis.
+#
+source $testdir/genesis.tcl
+
+
+
+do_test amatch1-1.0 {
+  db eval {
+    CREATE VIRTUAL TABLE t1 USING fts4(words); --, tokenize porter);
+  }
+  fts_kjv_genesis
+  db eval {
+    INSERT INTO t1(t1) VALUES('optimize');
+    CREATE VIRTUAL TABLE temp.t1aux USING fts4aux(main, t1);
+    SELECT term FROM t1aux WHERE col=0 ORDER BY 1 LIMIT 5
+  }
+} {a abated abel abelmizraim abidah}
+do_test amatch1-1.1 {
+  db eval {
+    SELECT term FROM t1aux WHERE term>'b' AND col=0 ORDER BY 1 LIMIT 5
+  }
+} {baalhanan babel back backward bad}
+do_test amatch1-1.2 {
+  db eval {
+    SELECT term FROM t1aux WHERE term>'b' AND col=0 LIMIT 5
+  }
+} {baalhanan babel back backward bad}
+
+# Load the amatch extension
+load_static_extension db amatch
+
+do_execsql_test amatch1-2.0 {
+    CREATE TABLE costs(iLang, cFrom, cTo, Cost);
+    INSERT INTO costs VALUES(0, '', '?', 100);
+    INSERT INTO costs VALUES(0, '?', '', 100);
+    INSERT INTO costs VALUES(0, '?', '?', 150);
+    CREATE TABLE vocab(w TEXT UNIQUE);
+    INSERT OR IGNORE INTO vocab SELECT term FROM t1aux;
+    CREATE VIRTUAL TABLE t2 USING approximate_match(
+      vocabulary_table=t1aux,
+      vocabulary_word=term,
+      edit_distances=costs
+    );
+    CREATE VIRTUAL TABLE t3 USING approximate_match(
+      vocabulary_table=vocab,
+      vocabulary_word=w,
+      edit_distances=costs
+    );
+    CREATE VIRTUAL TABLE t4 USING approximate_match(
+        vocabulary_table=vtemp,
+        vocabulary_word=w,
+        edit_distances=costs
+      );
+} {}
+puts "Query against fts4aux: [time {
+  do_execsql_test amatch1-2.1 {
+      SELECT word, distance FROM t2
+       WHERE word MATCH 'josxph' AND distance<300;
+  } {joseph 150}} 1]"
+puts "Query against ordinary table: [time {
+  do_execsql_test amatch1-2.2 {
+      SELECT word, distance FROM t3
+       WHERE word MATCH 'josxph' AND distance<300;
+  } {joseph 150}} 1]"
+puts "Temp table initialized from fts4aux: [time {
+  do_execsql_test amatch1-2.3a {
+      CREATE TEMP TABLE vtemp(w TEXT UNIQUE);
+      INSERT OR IGNORE INTO vtemp SELECT term FROM t1aux;
+  } {}} 1]"
+puts "Query against temp table: [time {
+  do_execsql_test amatch1-2.3b {
+      SELECT word, distance FROM t4
+       WHERE word MATCH 'josxph' AND distance<300;
+  } {joseph 150}} 1]"
+do_execsql_test amatch1-2.11 {
+    SELECT word, distance FROM t2
+     WHERE word MATCH 'joxxph' AND distance<=300;
+} {joseph 300}
+do_execsql_test amatch1-2.12 {
+    SELECT word, distance FROM t3
+     WHERE word MATCH 'joxxph' AND distance<=300;
+} {joseph 300}
+do_execsql_test amatch1-2.21 {
+    SELECT word, distance FROM t2
+     WHERE word MATCH 'joxxph' AND distance<300;
+} {}
+do_execsql_test amatch1-2.22 {
+    SELECT word, distance FROM t3
+     WHERE word MATCH 'joxxph' AND distance<300;
+} {}
+
+finish_test
diff --git a/test/analyze.test b/test/analyze.test
new file mode 100644
index 0000000000000000000000000000000000000000..f97c78aff1d3a39eb10669e32637ce22ecc0c79e
--- /dev/null
+++ b/test/analyze.test
@@ -0,0 +1,399 @@
+# 2005 July 22
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+# This file implements tests for the ANALYZE command.
+#
+# $Id: analyze.test,v 1.9 2008/08/11 18:44:58 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# There is nothing to test if ANALYZE is disable for this build.
+#
+ifcapable {!analyze} {
+  finish_test
+  return
+}
+
+# Basic sanity checks.
+#
+do_test analyze-1.1 {
+  catchsql {
+    ANALYZE no_such_table
+  }
+} {1 {no such table: no_such_table}}
+do_test analyze-1.2 {
+  execsql {
+    SELECT count(*) FROM sqlite_master WHERE name='sqlite_stat1'
+  }
+} {0}
+do_test analyze-1.3 {
+  catchsql {
+    ANALYZE no_such_db.no_such_table
+  }
+} {1 {unknown database no_such_db}}
+do_test analyze-1.4 {
+  execsql {
+    SELECT count(*) FROM sqlite_master WHERE name='sqlite_stat1'
+  }
+} {0}
+do_test analyze-1.5.1 {
+  catchsql {
+    ANALYZE
+  }
+} {0 {}}
+do_test analyze-1.5.2 {
+  catchsql {
+    PRAGMA empty_result_callbacks=1;
+    ANALYZE
+  }
+} {0 {}}
+do_test analyze-1.6 {
+  execsql {
+    SELECT count(*) FROM sqlite_master WHERE name='sqlite_stat1'
+  }
+} {1}
+do_test analyze-1.6.2 {
+  catchsql {
+    CREATE INDEX stat1idx ON sqlite_stat1(idx);
+  }
+} {1 {table sqlite_stat1 may not be indexed}}
+do_test analyze-1.6.3 {
+  catchsql {
+    CREATE INDEX main.stat1idx ON SQLite_stat1(idx);
+  }
+} {1 {table sqlite_stat1 may not be indexed}}
+do_test analyze-1.7 {
+  execsql {
+    SELECT * FROM sqlite_stat1 WHERE idx NOT NULL
+  }
+} {}
+do_test analyze-1.8 {
+  catchsql {
+    ANALYZE main
+  }
+} {0 {}}
+do_test analyze-1.9 {
+  execsql {
+    SELECT * FROM sqlite_stat1 WHERE idx NOT NULL
+  }
+} {}
+do_test analyze-1.10 {
+  catchsql {
+    CREATE TABLE t1(a,b);
+    ANALYZE main.t1;
+  }
+} {0 {}}
+do_test analyze-1.11 {
+  execsql {
+    SELECT * FROM sqlite_stat1
+  }
+} {}
+do_test analyze-1.12 {
+  catchsql {
+    ANALYZE t1;
+  }
+} {0 {}}
+do_test analyze-1.13 {
+  execsql {
+    SELECT * FROM sqlite_stat1
+  }
+} {}
+
+# Create some indices that can be analyzed.  But do not yet add
+# data.  Without data in the tables, no analysis is done.
+#
+do_test analyze-2.1 {
+  execsql {
+    CREATE INDEX t1i1 ON t1(a);
+    ANALYZE main.t1;
+    SELECT * FROM sqlite_stat1 ORDER BY idx;
+  }
+} {}
+do_test analyze-2.2 {
+  execsql {
+    CREATE INDEX t1i2 ON t1(b);
+    ANALYZE t1;
+    SELECT * FROM sqlite_stat1 ORDER BY idx;
+  }
+} {}
+do_test analyze-2.3 {
+  execsql {
+    CREATE INDEX t1i3 ON t1(a,b);
+    ANALYZE main;
+    SELECT * FROM sqlite_stat1 ORDER BY idx;
+  }
+} {}
+
+# Start adding data to the table.  Verify that the analysis
+# is done correctly.
+#
+do_test analyze-3.1 {
+  execsql {
+    INSERT INTO t1 VALUES(1,2);
+    INSERT INTO t1 VALUES(1,3);
+    ANALYZE main.t1;
+    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
+  }
+} {t1i1 {2 2} t1i2 {2 1} t1i3 {2 2 1}}
+do_test analyze-3.2 {
+  execsql {
+    INSERT INTO t1 VALUES(1,4);
+    INSERT INTO t1 VALUES(1,5);
+    ANALYZE t1;
+    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
+  }
+} {t1i1 {4 4} t1i2 {4 1} t1i3 {4 4 1}}
+do_test analyze-3.3 {
+  execsql {
+    INSERT INTO t1 VALUES(2,5);
+    ANALYZE main;
+    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
+  }
+} {t1i1 {5 3} t1i2 {5 2} t1i3 {5 3 1}}
+do_test analyze-3.4 {
+  execsql {
+    CREATE TABLE t2 AS SELECT * FROM t1;
+    CREATE INDEX t2i1 ON t2(a);
+    CREATE INDEX t2i2 ON t2(b);
+    CREATE INDEX t2i3 ON t2(a,b);
+    ANALYZE;
+    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
+  }
+} {t1i1 {5 3} t1i2 {5 2} t1i3 {5 3 1} t2i1 {5 3} t2i2 {5 2} t2i3 {5 3 1}}
+do_test analyze-3.5 {
+  execsql {
+    DROP INDEX t2i3;
+    ANALYZE t1;
+    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
+  }
+} {t1i1 {5 3} t1i2 {5 2} t1i3 {5 3 1} t2i1 {5 3} t2i2 {5 2}}
+do_test analyze-3.6 {
+  execsql {
+    ANALYZE t2;
+    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
+  }
+} {t1i1 {5 3} t1i2 {5 2} t1i3 {5 3 1} t2i1 {5 3} t2i2 {5 2}}
+do_test analyze-3.7 {
+  execsql {
+    DROP INDEX t2i2;
+    ANALYZE t2;
+    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
+  }
+} {t1i1 {5 3} t1i2 {5 2} t1i3 {5 3 1} t2i1 {5 3}}
+do_test analyze-3.8 {
+  execsql {
+    CREATE TABLE t3 AS SELECT a, b, rowid AS c, 'hi' AS d FROM t1;
+    CREATE INDEX t3i1 ON t3(a);
+    CREATE INDEX t3i2 ON t3(a,b,c,d);
+    CREATE INDEX t3i3 ON t3(d,b,c,a);
+    DROP TABLE t1;
+    DROP TABLE t2;
+    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
+  }
+} {}
+do_test analyze-3.9 {
+  execsql {
+    ANALYZE;
+    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
+  }
+} {t3i1 {5 3} t3i2 {5 3 1 1 1} t3i3 {5 5 2 1 1}}
+
+do_test analyze-3.10 {
+  execsql {
+    CREATE TABLE [silly " name](a, b, c);
+    CREATE INDEX 'foolish '' name' ON [silly " name](a, b);
+    CREATE INDEX 'another foolish '' name' ON [silly " name](c);
+    INSERT INTO [silly " name] VALUES(1, 2, 3);
+    INSERT INTO [silly " name] VALUES(4, 5, 6);
+    ANALYZE;
+    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
+  }
+} {{another foolish ' name} {2 1} {foolish ' name} {2 1 1} t3i1 {5 3} t3i2 {5 3 1 1 1} t3i3 {5 5 2 1 1}}
+do_test analyze-3.11 {
+  execsql {
+    DROP INDEX "foolish ' name";
+    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
+  }
+} {{another foolish ' name} {2 1} t3i1 {5 3} t3i2 {5 3 1 1 1} t3i3 {5 5 2 1 1}}
+do_test analyze-3.11 {
+  execsql {
+    DROP TABLE "silly "" name";
+    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
+  }
+} {t3i1 {5 3} t3i2 {5 3 1 1 1} t3i3 {5 5 2 1 1}}
+
+# Try corrupting the sqlite_stat1 table and make sure the
+# database is still able to function.
+#
+do_test analyze-4.0 {
+  sqlite3 db2 test.db
+  db2 eval {
+    CREATE TABLE t4(x,y,z);
+    CREATE INDEX t4i1 ON t4(x);
+    CREATE INDEX t4i2 ON t4(y);
+    INSERT INTO t4 SELECT a,b,c FROM t3;
+  }
+  db2 close
+  db close
+  sqlite3 db test.db
+  execsql {
+    ANALYZE;
+    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
+  }
+} {t3i1 {5 3} t3i2 {5 3 1 1 1} t3i3 {5 5 2 1 1} t4i1 {5 3} t4i2 {5 2}}
+do_test analyze-4.1 {
+  execsql {
+    PRAGMA writable_schema=on;
+    INSERT INTO sqlite_stat1 VALUES(null,null,null);
+    PRAGMA writable_schema=off;
+  }
+  db close
+  sqlite3 db test.db
+  execsql {
+    SELECT * FROM t4 WHERE x=1234;
+  }
+} {}
+do_test analyze-4.2 {
+  execsql {
+    PRAGMA writable_schema=on;
+    DELETE FROM sqlite_stat1;
+    INSERT INTO sqlite_stat1 VALUES('t4','t4i1','nonsense');
+    INSERT INTO sqlite_stat1 VALUES('t4','t4i2','120897349817238741092873198273409187234918720394817209384710928374109827172901827349871928741910');
+    PRAGMA writable_schema=off;
+  }
+  db close
+  sqlite3 db test.db
+  execsql {
+    SELECT * FROM t4 WHERE x=1234;
+  }
+} {}
+do_test analyze-4.3 {
+  execsql {
+    INSERT INTO sqlite_stat1 VALUES('t4','xyzzy','0 1 2 3');
+  }
+  db close
+  sqlite3 db test.db
+  execsql {
+    SELECT * FROM t4 WHERE x=1234;
+  }
+} {}
+
+# Verify that DROP TABLE and DROP INDEX remove entries from the 
+# sqlite_stat1 and sqlite_stat4 tables.
+#
+do_test analyze-5.0 {
+  execsql {
+    DELETE FROM t3;
+    DELETE FROM t4;
+    INSERT INTO t3 VALUES(1,2,3,4);
+    INSERT INTO t3 VALUES(5,6,7,8);
+    INSERT INTO t3 SELECT a+8, b+8, c+8, d+8 FROM t3;
+    INSERT INTO t3 SELECT a+16, b+16, c+16, d+16 FROM t3;
+    INSERT INTO t3 SELECT a+32, b+32, c+32, d+32 FROM t3;
+    INSERT INTO t3 SELECT a+64, b+64, c+64, d+64 FROM t3;
+    INSERT INTO t4 SELECT a, b, c FROM t3;
+    ANALYZE;
+    SELECT DISTINCT idx FROM sqlite_stat1 ORDER BY 1;
+    SELECT DISTINCT tbl FROM sqlite_stat1 ORDER BY 1;
+  }
+} {t3i1 t3i2 t3i3 t4i1 t4i2 t3 t4}
+ifcapable stat4 {
+  do_test analyze-5.1 {
+    execsql {
+      SELECT DISTINCT idx FROM sqlite_stat4 ORDER BY 1;
+      SELECT DISTINCT tbl FROM sqlite_stat4 ORDER BY 1;
+    }
+  } {t3i1 t3i2 t3i3 t4i1 t4i2 t3 t4}
+}
+do_test analyze-5.2 {
+  execsql {
+    DROP INDEX t3i2;
+    SELECT DISTINCT idx FROM sqlite_stat1 ORDER BY 1;
+    SELECT DISTINCT tbl FROM sqlite_stat1 ORDER BY 1;
+  }
+} {t3i1 t3i3 t4i1 t4i2 t3 t4}
+ifcapable stat4 {
+  do_test analyze-5.3 {
+    execsql {
+      SELECT DISTINCT idx FROM sqlite_stat4 ORDER BY 1;
+      SELECT DISTINCT tbl FROM sqlite_stat4 ORDER BY 1;
+    }
+  } {t3i1 t3i3 t4i1 t4i2 t3 t4}
+}
+do_test analyze-5.4 {
+  execsql {
+    DROP TABLE t3;
+    SELECT DISTINCT idx FROM sqlite_stat1 ORDER BY 1;
+    SELECT DISTINCT tbl FROM sqlite_stat1 ORDER BY 1;
+  }
+} {t4i1 t4i2 t4}
+ifcapable stat4 {
+  do_test analyze-5.5 {
+    execsql {
+      SELECT DISTINCT idx FROM sqlite_stat4 ORDER BY 1;
+      SELECT DISTINCT tbl FROM sqlite_stat4 ORDER BY 1;
+    }
+  } {t4i1 t4i2 t4}
+}
+
+# This test corrupts the database file so it must be the last test
+# in the series.
+#
+do_test analyze-5.99 {
+  sqlite3_db_config db DEFENSIVE 0
+  execsql {
+    PRAGMA writable_schema=on;
+    UPDATE sqlite_master SET sql='nonsense' WHERE name='sqlite_stat1';
+  }
+  db close
+  catch { sqlite3 db test.db }
+  catchsql {
+    ANALYZE
+  }
+} {1 {malformed database schema (sqlite_stat1)}}
+
+# Verify that tables whose names begin with "sqlite" but not
+# "sqlite_" are analyzed.
+#
+db close
+sqlite3 db :memory:
+do_execsql_test analyze-6.1 {
+  CREATE TABLE sqliteDemo(a);
+  INSERT INTO sqliteDemo(a) VALUES(1),(2),(3),(4),(5);
+  CREATE TABLE SQLiteDemo2(a INTEGER PRIMARY KEY AUTOINCREMENT);
+  INSERT INTO SQLiteDemo2 SELECT * FROM sqliteDemo;
+  CREATE TABLE t1(b);
+  INSERT INTO t1(b) SELECT a FROM sqliteDemo;
+  ANALYZE;
+  SELECT tbl FROM sqlite_stat1 WHERE idx IS NULL ORDER BY tbl;
+} {SQLiteDemo2 sqliteDemo t1}
+
+# The following caused a small buffer overread in STAT4 processing prior
+# to check-in [b99135288b157044].
+#
+ifcapable stat4 {
+  reset_db
+  database_may_be_corrupt
+  do_execsql_test analyze-7.1 {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b INTEGER);
+    INSERT INTO t1 VALUES(1, 7223372036854775);
+    INSERT INTO t1 VALUES(2, 7223372036854776);
+    INSERT INTO t1 VALUES(3, 7223372036854777);
+    CREATE INDEX i1 ON t1(b);
+    ANALYZE;
+    UPDATE sqlite_stat4 SET sample = substr(sample, 0, 4);
+    ANALYZE sqlite_schema;
+    SELECT * FROM t1 WHERE b>7223372036854775
+  } {2 7223372036854776 3 7223372036854777}
+}
+
+finish_test
diff --git a/test/analyze3.test b/test/analyze3.test
new file mode 100644
index 0000000000000000000000000000000000000000..c5d7a7cb13a38b6f940728f228069639a2e37dda
--- /dev/null
+++ b/test/analyze3.test
@@ -0,0 +1,766 @@
+# 2009 August 06
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements regression tests for SQLite library. This file 
+# implements tests for range and LIKE constraints that use bound variables
+# instead of literal constant arguments.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix analyze3
+
+ifcapable !stat4 {
+  finish_test
+  return
+}
+
+# This test cannot be run with the sqlite3_prepare() permutation, as it
+# tests that stat4 data can be used to influence the plans of queries
+# based on bound variable values. And this is not possible when using
+# sqlite3_prepare() - as queries cannot be internally re-prepared after
+# binding values are available.
+if {[permutation]=="prepare"} {
+  finish_test
+  return
+}
+
+#----------------------------------------------------------------------
+# Test Organization:
+#
+# analyze3-1.*: Test that the values of bound parameters are considered 
+#               in the same way as constants when planning queries that
+#               use range constraints.
+#
+# analyze3-2.*: Test that the values of bound parameters are considered 
+#               in the same way as constants when planning queries that
+#               use LIKE expressions in the WHERE clause.
+#
+# analyze3-3.*: Test that binding to a variable does not invalidate the 
+#               query plan when there is no way in which replanning the
+#               query may produce a superior outcome.
+#
+# analyze3-4.*: Test that SQL or authorization callback errors occuring
+#               within sqlite3Reprepare() are handled correctly.
+#
+# analyze3-5.*: Check that the query plans of applicable statements are
+#               invalidated if the values of SQL parameter are modified
+#               using the clear_bindings() or transfer_bindings() APIs.
+# 
+# analyze3-6.*: Test that the problem fixed by commit [127a5b776d] is fixed.
+#
+# analyze3-7.*: Test that some memory leaks discovered by fuzz testing 
+#               have been fixed.
+#
+
+proc getvar {varname} { uplevel #0 set $varname }
+db function var getvar
+
+proc eqp {sql {db db}} {
+  uplevel execsql [list "EXPLAIN QUERY PLAN $sql"] $db
+}
+
+proc sf_execsql {sql {db db}} {
+  set ::sqlite_search_count 0
+  set r [uplevel [list execsql $sql $db]]
+
+  concat $::sqlite_search_count [$db status step] $r
+}
+
+#-------------------------------------------------------------------------
+#
+# analyze3-1.1.1: 
+#   Create a table with two columns. Populate the first column (affinity 
+#   INTEGER) with integer values from 100 to 1100. Create an index on this 
+#   column. ANALYZE the table.
+#
+# analyze3-1.1.2 - 3.1.3
+#   Show that there are two possible plans for querying the table with
+#   a range constraint on the indexed column - "full table scan" or "use 
+#   the index". When the range is specified using literal values, SQLite
+#   is able to pick the best plan based on the samples in sqlite_stat3.
+#
+# analyze3-1.1.4 - 3.1.9
+#   Show that using SQL variables produces the same results as using
+#   literal values to constrain the range scan.
+#
+#   These tests also check that the compiler code considers column 
+#   affinities when estimating the number of rows scanned by the "use 
+#   index strategy".
+#
+do_test analyze3-1.1.1 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t1(x INTEGER, y);
+    CREATE INDEX i1 ON t1(x);
+  }
+  for {set i 0} {$i < 1000} {incr i} {
+    execsql { INSERT INTO t1 VALUES($i+100, $i) }
+  }
+  execsql {
+    COMMIT;
+    ANALYZE;
+  }
+
+  execsql { SELECT count(*)>0 FROM sqlite_stat4; }
+} {1}
+
+do_execsql_test analyze3-1.1.x {
+  SELECT count(*) FROM t1 WHERE x>200 AND x<300;
+  SELECT count(*) FROM t1 WHERE x>0 AND x<1100;
+} {99 1000}
+
+# The first of the following two SELECT statements visits 99 rows. So
+# it is better to use the index. But the second visits every row in 
+# the table (1000 in total) so it is better to do a full-table scan.
+#
+do_eqp_test analyze3-1.1.2 {
+  SELECT sum(y) FROM t1 WHERE x>200 AND x<300
+} {SEARCH t1 USING INDEX i1 (x>? AND x<?)}
+do_eqp_test analyze3-1.1.3 {
+  SELECT sum(y) FROM t1 WHERE x>0 AND x<1100 
+} {SCAN t1}
+
+# 2017-06-26:  Verify that the SQLITE_DBCONFIG_ENABLE_QPSG setting disables
+# the use of bound parameters by STAT4
+#
+db cache flush
+unset -nocomplain l
+unset -nocomplain u
+do_eqp_test analyze3-1.1.3.100 {
+  SELECT sum(y) FROM t1 WHERE x>$l AND x<$u
+} {SEARCH t1 USING INDEX i1 (x>? AND x<?)}
+set l 200
+set u 300
+do_eqp_test analyze3-1.1.3.101 {
+  SELECT sum(y) FROM t1 WHERE x>$l AND x<$u
+} {SEARCH t1 USING INDEX i1 (x>? AND x<?)}
+set l 0
+set u 1100
+do_eqp_test analyze3-1.1.3.102 {
+  SELECT sum(y) FROM t1 WHERE x>$l AND x<$u
+} {SCAN t1}
+db cache flush
+sqlite3_db_config db ENABLE_QPSG 1
+do_eqp_test analyze3-1.1.3.103 {
+  SELECT sum(y) FROM t1 WHERE x>$l AND x<$u
+} {SEARCH t1 USING INDEX i1 (x>? AND x<?)}
+db cache flush
+sqlite3_db_config db ENABLE_QPSG 0
+do_eqp_test analyze3-1.1.3.104 {
+  SELECT sum(y) FROM t1 WHERE x>$l AND x<$u
+} {SCAN t1}
+
+do_test analyze3-1.1.4 {
+  sf_execsql { SELECT sum(y) FROM t1 WHERE x>200 AND x<300 }
+} {199 0 14850}
+do_test analyze3-1.1.5 {
+  set l [string range "200" 0 end]
+  set u [string range "300" 0 end]
+  sf_execsql { SELECT sum(y) FROM t1 WHERE x>$l AND x<$u }
+} {199 0 14850}
+do_test analyze3-1.1.6 {
+  set l [expr int(200)]
+  set u [expr int(300)]
+  sf_execsql { SELECT sum(y) FROM t1 WHERE x>$l AND x<$u }
+} {199 0 14850}
+do_test analyze3-1.1.7 {
+  sf_execsql { SELECT sum(y) FROM t1 WHERE x>0 AND x<1100 }
+} {999 999 499500}
+do_test analyze3-1.1.8 {
+  set l [string range "0" 0 end]
+  set u [string range "1100" 0 end]
+  sf_execsql { SELECT sum(y) FROM t1 WHERE x>$l AND x<$u }
+} {999 999 499500}
+do_test analyze3-1.1.9 {
+  set l [expr int(0)]
+  set u [expr int(1100)]
+  sf_execsql { SELECT sum(y) FROM t1 WHERE x>$l AND x<$u }
+} {999 999 499500}
+
+
+# The following tests are similar to the block above. The difference is
+# that the indexed column has TEXT affinity in this case. In the tests
+# above the affinity is INTEGER.
+#
+do_test analyze3-1.2.1 {
+  execsql {
+    BEGIN;
+      CREATE TABLE t2(x TEXT, y);
+      INSERT INTO t2 SELECT * FROM t1;
+      CREATE INDEX i2 ON t2(x);
+    COMMIT;
+    ANALYZE;
+  }
+} {}
+do_execsql_test analyze3-2.1.x {
+  SELECT count(*) FROM t2 WHERE x>1 AND x<2;
+  SELECT count(*) FROM t2 WHERE x>0 AND x<99;
+} {200 990}
+do_eqp_test analyze3-1.2.2 {
+  SELECT sum(y) FROM t2 WHERE x>1 AND x<2
+} {SEARCH t2 USING INDEX i2 (x>? AND x<?)}
+do_eqp_test analyze3-1.2.3 {
+  SELECT sum(y) FROM t2 WHERE x>0 AND x<99
+} {SCAN t2}
+
+do_test analyze3-1.2.4 {
+  sf_execsql { SELECT sum(y) FROM t2 WHERE x>12 AND x<20 }
+} {161 0 4760}
+do_test analyze3-1.2.5 {
+  set l [string range "12" 0 end]
+  set u [string range "20" 0 end]
+  sf_execsql {SELECT typeof($l), typeof($u), sum(y) FROM t2 WHERE x>$l AND x<$u}
+} {161 0 text text 4760}
+do_test analyze3-1.2.6 {
+  set l [expr int(12)]
+  set u [expr int(20)]
+  sf_execsql {SELECT typeof($l), typeof($u), sum(y) FROM t2 WHERE x>$l AND x<$u}
+} {161 0 integer integer 4760}
+do_test analyze3-1.2.7 {
+  sf_execsql { SELECT sum(y) FROM t2 WHERE x>0 AND x<99 }
+} {999 999 490555}
+do_test analyze3-1.2.8 {
+  set l [string range "0" 0 end]
+  set u [string range "99" 0 end]
+  sf_execsql {SELECT typeof($l), typeof($u), sum(y) FROM t2 WHERE x>$l AND x<$u}
+} {999 999 text text 490555}
+do_test analyze3-1.2.9 {
+  set l [expr int(0)]
+  set u [expr int(99)]
+  sf_execsql {SELECT typeof($l), typeof($u), sum(y) FROM t2 WHERE x>$l AND x<$u}
+} {999 999 integer integer 490555}
+
+# Same tests a third time. This time, column x has INTEGER affinity and
+# is not the leftmost column of the table. This triggered a bug causing
+# SQLite to use sub-optimal query plans in 3.6.18 and earlier.
+#
+do_test analyze3-1.3.1 {
+  execsql {
+    BEGIN;
+      CREATE TABLE t3(y TEXT, x INTEGER);
+      INSERT INTO t3 SELECT y, x FROM t1;
+      CREATE INDEX i3 ON t3(x);
+    COMMIT;
+    ANALYZE;
+  }
+} {}
+do_execsql_test analyze3-1.3.x {
+  SELECT count(*) FROM t3 WHERE x>200 AND x<300;
+  SELECT count(*) FROM t3 WHERE x>0 AND x<1100
+} {99 1000}
+do_eqp_test analyze3-1.3.2 {
+  SELECT sum(y) FROM t3 WHERE x>200 AND x<300
+} {SEARCH t3 USING INDEX i3 (x>? AND x<?)}
+do_eqp_test analyze3-1.3.3 {
+  SELECT sum(y) FROM t3 WHERE x>0 AND x<1100
+} {SCAN t3}
+
+do_test analyze3-1.3.4 {
+  sf_execsql { SELECT sum(y) FROM t3 WHERE x>200 AND x<300 }
+} {199 0 14850}
+do_test analyze3-1.3.5 {
+  set l [string range "200" 0 end]
+  set u [string range "300" 0 end]
+  sf_execsql { SELECT sum(y) FROM t3 WHERE x>$l AND x<$u }
+} {199 0 14850}
+do_test analyze3-1.3.6 {
+  set l [expr int(200)]
+  set u [expr int(300)]
+  sf_execsql { SELECT sum(y) FROM t3 WHERE x>$l AND x<$u }
+} {199 0 14850}
+do_test analyze3-1.3.7 {
+  sf_execsql { SELECT sum(y) FROM t3 WHERE x>0 AND x<1100 }
+} {999 999 499500}
+do_test analyze3-1.3.8 {
+  set l [string range "0" 0 end]
+  set u [string range "1100" 0 end]
+  sf_execsql { SELECT sum(y) FROM t3 WHERE x>$l AND x<$u }
+} {999 999 499500}
+do_test analyze3-1.3.9 {
+  set l [expr int(0)]
+  set u [expr int(1100)]
+  sf_execsql { SELECT sum(y) FROM t3 WHERE x>$l AND x<$u }
+} {999 999 499500}
+
+#-------------------------------------------------------------------------
+# Test that the values of bound SQL variables may be used for the LIKE
+# optimization.
+#
+drop_all_tables
+do_test analyze3-2.1 {
+  execsql {
+    PRAGMA case_sensitive_like=off;
+    BEGIN;
+    CREATE TABLE t1(a, b TEXT COLLATE nocase);
+    CREATE INDEX i1 ON t1(b);
+  }
+  for {set i 0} {$i < 1000} {incr i} {
+    set t ""
+    append t [lindex {a b c d e f g h i j} [expr $i/100]]
+    append t [lindex {a b c d e f g h i j} [expr ($i/10)%10]]
+    append t [lindex {a b c d e f g h i j} [expr ($i%10)]]
+    execsql { INSERT INTO t1 VALUES($i, $t) }
+  }
+  execsql COMMIT
+} {}
+do_eqp_test analyze3-2.2 {
+  SELECT count(a) FROM t1 WHERE b LIKE 'a%'
+} {SEARCH t1 USING INDEX i1 (b>? AND b<?)}
+do_eqp_test analyze3-2.3 {
+  SELECT count(a) FROM t1 WHERE b LIKE '%a'
+} {SCAN t1}
+
+# Return the first argument if like_match_blobs is true (the default)
+# or the second argument if not
+#
+proc ilmb {a b} {
+  ifcapable like_match_blobs {return $a}
+  return $b
+}
+
+do_test analyze3-2.4 {
+  sf_execsql { SELECT count(*) FROM t1 WHERE b LIKE 'a%' }
+} [list [ilmb 102 101] 0 100]
+do_test analyze3-2.5 {
+  sf_execsql { SELECT count(*) FROM t1 WHERE b LIKE '%a' }
+} {999 999 100}
+
+do_test analyze3-2.6 {
+  set like "a%"
+  sf_execsql { SELECT count(*) FROM t1 WHERE b LIKE $like }
+} [list [ilmb 102 101] 0 100]
+do_test analyze3-2.7 {
+  set like "%a"
+  sf_execsql { SELECT count(*) FROM t1 WHERE b LIKE $like }
+} {999 999 100}
+do_test analyze3-2.8 {
+  set like "a"
+  sf_execsql { SELECT count(*) FROM t1 WHERE b LIKE $like }
+} [list [ilmb 102 101] 0 0]
+do_test analyze3-2.9 {
+  set like "ab"
+  sf_execsql { SELECT count(*) FROM t1 WHERE b LIKE $like }
+} [list [ilmb 12 11] 0 0]
+do_test analyze3-2.10 {
+  set like "abc"
+  sf_execsql { SELECT count(*) FROM t1 WHERE b LIKE $like }
+} [list [ilmb 3 2] 0 1]
+do_test analyze3-2.11 {
+  set like "a_c"
+  sf_execsql { SELECT count(*) FROM t1 WHERE b LIKE $like }
+} [list [ilmb 102 101] 0 10]
+
+
+#-------------------------------------------------------------------------
+# This block of tests checks that statements are correctly marked as
+# expired when the values bound to any parameters that may affect the 
+# query plan are modified.
+#
+drop_all_tables
+db auth auth
+proc auth {args} {
+  set ::auth 1
+  return SQLITE_OK
+}
+
+do_test analyze3-3.1 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t1(a, b, c);
+    CREATE INDEX i1 ON t1(b);
+  }
+  for {set i 0} {$i < 100} {incr i} {
+    execsql { INSERT INTO t1 VALUES($i, $i, $i) }
+  }
+  execsql COMMIT
+  execsql ANALYZE
+} {}
+do_test analyze3-3.2.1 {
+  set S [sqlite3_prepare_v2 db "SELECT * FROM t1 WHERE b>?" -1 dummy]
+  sqlite3_expired $S
+} {0}
+do_test analyze3-3.2.2 {
+  sqlite3_bind_text $S 1 "abc" 3
+  sqlite3_expired $S
+} {1}
+do_test analyze3-3.2.4 {
+  sqlite3_finalize $S
+} {SQLITE_OK}
+
+do_test analyze3-3.2.5 {
+  set S [sqlite3_prepare_v2 db "SELECT * FROM t1 WHERE b=?" -1 dummy]
+  sqlite3_expired $S
+} {0}
+do_test analyze3-3.2.6 {
+  sqlite3_bind_text $S 1 "abc" 3
+  sqlite3_expired $S
+} {1}
+do_test analyze3-3.2.7 {
+  sqlite3_finalize $S
+} {SQLITE_OK}
+
+do_test analyze3-3.4.1 {
+  set S [sqlite3_prepare_v2 db "SELECT * FROM t1 WHERE a=? AND b>?" -1 dummy]
+  sqlite3_expired $S
+} {0}
+do_test analyze3-3.4.2 {
+  sqlite3_bind_text $S 1 "abc" 3
+  sqlite3_expired $S
+} {0}
+do_test analyze3-3.4.3 {
+  sqlite3_bind_text $S 2 "def" 3
+  sqlite3_expired $S
+} {1}
+do_test analyze3-3.4.4 {
+  sqlite3_bind_text $S 2 "ghi" 3
+  sqlite3_expired $S
+} {1}
+do_test analyze3-3.4.5 {
+  sqlite3_expired $S
+} {1}
+do_test analyze3-3.4.6 {
+  sqlite3_finalize $S
+} {SQLITE_OK}
+
+do_test analyze3-3.5.1 {
+  set S [sqlite3_prepare_v2 db {
+    SELECT * FROM t1 WHERE a IN (
+      ?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8, ?9, ?10,
+      ?11, ?12, ?13, ?14, ?15, ?16, ?17, ?18, ?19, ?20,
+      ?21, ?22, ?23, ?24, ?25, ?26, ?27, ?28, ?29, ?30, ?31
+    ) AND b>?32;
+  } -1 dummy]
+  sqlite3_expired $S
+} {0}
+do_test analyze3-3.5.2 {
+  sqlite3_bind_text $S 31 "abc" 3
+  sqlite3_expired $S
+} {0}
+do_test analyze3-3.5.3 {
+  sqlite3_bind_text $S 32 "def" 3
+  sqlite3_expired $S
+} {1}
+do_test analyze3-3.5.5 {
+  sqlite3_finalize $S
+} {SQLITE_OK}
+
+do_test analyze3-3.6.1 {
+  set S [sqlite3_prepare_v2 db {
+    SELECT * FROM t1 WHERE a IN (
+      ?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8, ?9, ?10,
+      ?11, ?12, ?13, ?14, ?15, ?16, ?17, ?18, ?19, ?20,
+      ?21, ?22, ?23, ?24, ?25, ?26, ?27, ?28, ?29, ?30, ?31, ?32
+    ) AND b>?33;
+  } -1 dummy]
+  sqlite3_expired $S
+} {0}
+do_test analyze3-3.6.2 {
+  sqlite3_bind_text $S 32 "abc" 3
+  sqlite3_expired $S
+} {1}
+do_test analyze3-3.6.3 {
+  sqlite3_bind_text $S 33 "def" 3
+  sqlite3_expired $S
+} {1}
+do_test analyze3-3.6.5 {
+  sqlite3_finalize $S
+} {SQLITE_OK}
+
+do_test analyze3-3.7.1 {
+  set S [sqlite3_prepare_v2 db {
+    SELECT * FROM t1 WHERE a IN (
+      ?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8, ?9, ?33,
+      ?11, ?12, ?13, ?14, ?15, ?16, ?17, ?18, ?19, ?20,
+      ?21, ?22, ?23, ?24, ?25, ?26, ?27, ?28, ?29, ?30, ?31, ?32
+    ) AND b>?10;
+  } -1 dummy]
+  sqlite3_expired $S
+} {0}
+do_test analyze3-3.7.2 {
+  sqlite3_bind_text $S 32 "abc" 3
+  sqlite3_expired $S
+} {0}
+do_test analyze3-3.7.3 {
+  sqlite3_bind_text $S 33 "def" 3
+  sqlite3_expired $S
+} {0}
+do_test analyze3-3.7.4 {
+  sqlite3_bind_text $S 10 "def" 3
+  sqlite3_expired $S
+} {1}
+do_test analyze3-3.7.6 {
+  sqlite3_finalize $S
+} {SQLITE_OK}
+
+do_test analyze3-3.8.1 {
+  execsql {
+    CREATE TABLE t4(x, y TEXT COLLATE NOCASE);
+    CREATE INDEX i4 ON t4(y);
+  }
+} {}
+do_test analyze3-3.8.2 {
+  set S [sqlite3_prepare_v2 db {
+    SELECT * FROM t4 WHERE x != ? AND y LIKE ?
+  } -1 dummy]
+  sqlite3_expired $S
+} {0}
+do_test analyze3-3.8.3 {
+  sqlite3_bind_text $S 1 "abc" 3
+  sqlite3_expired $S
+} {0}
+do_test analyze3-3.8.4 {
+  sqlite3_bind_text $S 2 "def" 3
+  sqlite3_expired $S
+} {1}
+do_test analyze3-3.8.7 {
+  sqlite3_bind_text $S 2 "ghi%" 4
+  sqlite3_expired $S
+} {1}
+do_test analyze3-3.8.8 {
+  sqlite3_expired $S
+} {1}
+do_test analyze3-3.8.9 {
+  sqlite3_bind_text $S 2 "ghi%def" 7
+  sqlite3_expired $S
+} {1}
+do_test analyze3-3.8.10 {
+  sqlite3_expired $S
+} {1}
+do_test analyze3-3.8.11 {
+  sqlite3_bind_text $S 2 "%ab" 3
+  sqlite3_expired $S
+} {1}
+do_test analyze3-3.8.12 {
+  sqlite3_expired $S
+} {1}
+do_test analyze3-3.8.12 {
+  sqlite3_bind_text $S 2 "%de" 3
+  sqlite3_expired $S
+} {1}
+do_test analyze3-3.8.13 {
+  sqlite3_expired $S
+} {1}
+do_test analyze3-3.8.14 {
+  sqlite3_finalize $S
+} {SQLITE_OK}
+
+#-------------------------------------------------------------------------
+# These tests check that errors encountered while repreparing an SQL
+# statement within sqlite3Reprepare() are handled correctly.
+#
+
+# Check a schema error.
+#
+do_test analyze3-4.1.1 {
+  set S [sqlite3_prepare_v2 db "SELECT * FROM t1 WHERE a=? AND b>?" -1 dummy]
+  sqlite3_step $S
+} {SQLITE_DONE}
+do_test analyze3-4.1.2 {
+  sqlite3_reset $S
+  sqlite3_bind_text $S 2 "abc" 3
+  execsql { DROP TABLE t1 }
+  sqlite3_step $S
+} {SQLITE_ERROR}
+do_test analyze3-4.1.3 {
+  sqlite3_finalize $S
+} {SQLITE_ERROR}
+
+# Check an authorization error.
+#
+do_test analyze3-4.2.1 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t1(a, b, c);
+    CREATE INDEX i1 ON t1(b);
+  }
+  for {set i 0} {$i < 100} {incr i} {
+    execsql { INSERT INTO t1 VALUES($i, $i, $i) }
+  }
+  execsql COMMIT
+  execsql ANALYZE
+  set S [sqlite3_prepare_v2 db "SELECT * FROM t1 WHERE a=? AND b>?" -1 dummy]
+  sqlite3_step $S
+} {SQLITE_DONE}
+db auth auth
+proc auth {args} {
+  if {[lindex $args 0] == "SQLITE_READ"} {return SQLITE_DENY}
+  return SQLITE_OK
+}
+do_test analyze3-4.2.2 {
+  sqlite3_reset $S
+  sqlite3_bind_text $S 2 "abc" 3
+  sqlite3_step $S
+} {SQLITE_AUTH}
+do_test analyze3-4.2.4 {
+  sqlite3_finalize $S
+} {SQLITE_AUTH}
+
+# Check the effect of an authorization error that occurs in a re-prepare
+# performed by sqlite3_step() is the same as one that occurs within
+# sqlite3Reprepare().
+#
+do_test analyze3-4.3.1 {
+  db auth {}
+  set S [sqlite3_prepare_v2 db "SELECT * FROM t1 WHERE a=? AND b>?" -1 dummy]
+  execsql { CREATE TABLE t2(d, e, f) }
+  db auth auth
+  sqlite3_step $S
+} {SQLITE_AUTH}
+do_test analyze3-4.3.2 {
+  sqlite3_finalize $S
+} {SQLITE_AUTH}
+db auth {}
+
+#-------------------------------------------------------------------------
+# Test that modifying bound variables using the clear_bindings() or
+# transfer_bindings() APIs works.
+#
+#   analyze3-5.1.*: sqlite3_clear_bindings()
+#   analyze3-5.2.*: sqlite3_transfer_bindings()
+#
+do_test analyze3-5.1.1 {
+  drop_all_tables
+  execsql {
+    CREATE TABLE t1(x TEXT COLLATE NOCASE);
+    CREATE INDEX i1 ON t1(x);
+    INSERT INTO t1 VALUES('aaa');
+    INSERT INTO t1 VALUES('abb');
+    INSERT INTO t1 VALUES('acc');
+    INSERT INTO t1 VALUES('baa');
+    INSERT INTO t1 VALUES('bbb');
+    INSERT INTO t1 VALUES('bcc');
+  }
+
+  set S [sqlite3_prepare_v2 db "SELECT * FROM t1 WHERE x LIKE ?" -1 dummy]
+  sqlite3_bind_text $S 1 "a%" 2
+  set R [list]
+  while { "SQLITE_ROW" == [sqlite3_step $S] } {
+    lappend R [sqlite3_column_text $S 0]
+  }
+  concat [sqlite3_reset $S] $R
+} {SQLITE_OK aaa abb acc}
+do_test analyze3-5.1.2 {
+  sqlite3_clear_bindings $S
+  set R [list]
+  while { "SQLITE_ROW" == [sqlite3_step $S] } {
+    lappend R [sqlite3_column_text $S 0]
+  }
+  concat [sqlite3_reset $S] $R
+} {SQLITE_OK}
+do_test analyze3-5.1.3 {
+  sqlite3_finalize $S
+} {SQLITE_OK}
+
+do_test analyze3-5.1.1 {
+  set S1 [sqlite3_prepare_v2 db "SELECT * FROM t1 WHERE x LIKE ?" -1 dummy]
+  sqlite3_bind_text $S1 1 "b%" 2
+  set R [list]
+  while { "SQLITE_ROW" == [sqlite3_step $S1] } {
+    lappend R [sqlite3_column_text $S1 0]
+  }
+  concat [sqlite3_reset $S1] $R
+} {SQLITE_OK baa bbb bcc}
+
+do_test analyze3-5.1.2 {
+  set S2 [sqlite3_prepare_v2 db "SELECT * FROM t1 WHERE x = ?" -1 dummy]
+  sqlite3_bind_text $S2 1 "a%" 2
+  sqlite3_transfer_bindings $S2 $S1
+  set R [list]
+  while { "SQLITE_ROW" == [sqlite3_step $S1] } {
+    lappend R [sqlite3_column_text $S1 0]
+  }
+  concat [sqlite3_reset $S1] $R
+} {SQLITE_OK aaa abb acc}
+do_test analyze3-5.1.3 {
+  sqlite3_finalize $S2
+  sqlite3_finalize $S1
+} {SQLITE_OK}
+
+#-------------------------------------------------------------------------
+
+do_test analyze3-6.1 {
+  execsql { DROP TABLE IF EXISTS t1 }
+  execsql BEGIN
+  execsql { CREATE TABLE t1(a, b, c) }
+  for {set i 0} {$i < 1000} {incr i} {
+    execsql "INSERT INTO t1 VALUES([expr $i/100], 'x', [expr $i/10])"
+  }
+  execsql {
+    CREATE INDEX i1 ON t1(a, b);
+    CREATE INDEX i2 ON t1(c);
+  }
+  execsql COMMIT
+  execsql ANALYZE
+} {}
+
+do_eqp_test analyze3-6-3 {
+  SELECT * FROM t1 WHERE a = 5 AND c = 13;
+} {SEARCH t1 USING INDEX i2 (c=?)}
+
+do_eqp_test analyze3-6-2 {
+  SELECT * FROM t1 WHERE a = 5 AND b > 'w' AND c = 13;
+} {SEARCH t1 USING INDEX i2 (c=?)}
+
+#-----------------------------------------------------------------------------
+# 2015-04-20.
+# Memory leak in sqlite3Stat4ProbeFree().  (Discovered while fuzzing.)
+#
+do_execsql_test analyze-7.1 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+  INSERT INTO t1 VALUES(1,1,'0000');
+  CREATE INDEX t0b ON t1(b);
+  ANALYZE;
+  SELECT c FROM t1 WHERE b=3 AND a BETWEEN 30 AND hex(1);
+} {}
+
+# At one point duplicate stat1 entries were causing a memory leak.
+#
+reset_db
+do_execsql_test 7.2 {
+  CREATE TABLE t1(a,b,c);
+  CREATE INDEX t1a ON t1(a);
+  ANALYZE;
+  SELECT * FROM sqlite_stat1;
+  INSERT INTO sqlite_stat1(tbl,idx,stat) VALUES('t1','t1a','12000');
+  INSERT INTO sqlite_stat1(tbl,idx,stat) VALUES('t1','t1a','12000');
+  ANALYZE sqlite_master;
+}
+
+# 2023-04-22 https://sqlite.org/forum/info/6c118daad0f1f5ef
+# Case differences in the sqlite_stat4.idx field should not matter.
+#
+reset_db
+do_execsql_test 8.0 {
+  CREATE TABLE t1(a PRIMARY KEY, v) WITHOUT ROWID;
+  ANALYZE sqlite_schema;
+  INSERT INTO sqlite_stat1 VALUES('t1','t1','1 1');
+  INSERT INTO sqlite_stat4 VALUES('t1','t1','1','0','0',X'021b76657273696f6e');
+  INSERT INTO sqlite_stat4 VALUES('T1','T1','1','0','0',X'021b76657273696f6e');
+  ANALYZE sqlite_schema;
+} {}
+
+# 2023-05-03 https://sqlite.org/forum/forumpost/537d8ab118
+# Same index appears by two different names in the sqlite_stat4 table.
+#
+reset_db
+do_execsql_test 8.1 {
+  CREATE TABLE t1(a INT PRIMARY KEY, b INT) WITHOUT ROWID;
+  ANALYZE sqlite_schema;
+  INSERT INTO sqlite_stat4 VALUES
+     ('t1','t1','1','2','2',X'03000103'),
+     ('t1','sqlite_autoindex_t1_1','1','2','2',X'03000103');
+  ANALYZE sqlite_schema;
+  PRAGMA integrity_check;
+} {ok}
+
+finish_test
diff --git a/test/analyze4.test b/test/analyze4.test
new file mode 100644
index 0000000000000000000000000000000000000000..d4f1921e4c56c0f8cc55127d1df80e4436e831f9
--- /dev/null
+++ b/test/analyze4.test
@@ -0,0 +1,117 @@
+# 2011 January 04
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements regression tests for SQLite library. This file 
+# implements tests for ANALYZE to verify that multiple rows containing
+# a NULL value count as distinct rows for the purposes of analyze 
+# statistics.
+#
+# Also include test cases for collating sequences on indices.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If SQLITE_OMIT_ALTERTABLE is defined, omit this file.
+ifcapable !altertable {
+  finish_test
+  return
+}
+
+do_test analyze4-1.0 {
+  db eval {
+    CREATE TABLE t1(a,b);
+    CREATE INDEX t1a ON t1(a);
+    CREATE INDEX t1b ON t1(b);
+    INSERT INTO t1 VALUES(1,NULL);
+    INSERT INTO t1 SELECT a+1, b FROM t1;
+    INSERT INTO t1 SELECT a+2, b FROM t1;
+    INSERT INTO t1 SELECT a+4, b FROM t1;
+    INSERT INTO t1 SELECT a+8, b FROM t1;
+    INSERT INTO t1 SELECT a+16, b FROM t1;
+    INSERT INTO t1 SELECT a+32, b FROM t1;
+    INSERT INTO t1 SELECT a+64, b FROM t1;
+    ANALYZE;
+  }
+
+  # Should choose the t1a index since it is more specific than t1b.
+  db eval {EXPLAIN QUERY PLAN SELECT * FROM t1 WHERE a=5 AND b IS NULL}
+} {/*SEARCH t1 USING INDEX t1a (a=?)*/}
+
+# Verify that the t1b index shows that it does not narrow down the
+# search any at all.
+#
+do_test analyze4-1.1 {
+  db eval {
+    SELECT idx, stat FROM sqlite_stat1 WHERE tbl='t1' ORDER BY idx;
+  }
+} {t1a {128 1} t1b {128 128}}
+
+# Change half of the b values from NULL to a constant.  Verify
+# that the number of rows selected in stat1 is half the total 
+# number of rows.
+#
+do_test analyze4-1.2 {
+  db eval {
+    UPDATE t1 SET b='x' WHERE a%2;
+    ANALYZE;
+    SELECT idx, stat FROM sqlite_stat1 WHERE tbl='t1' ORDER BY idx;
+  }
+} {t1a {128 1} t1b {128 64}}
+
+# Change the t1.b values all back to NULL.  Add columns t1.c and t1.d.
+# Create a multi-column indices using t1.b and verify that ANALYZE 
+# processes them correctly.
+#
+do_test analyze4-1.3 {
+  db eval {
+    UPDATE t1 SET b=NULL;
+    ALTER TABLE t1 ADD COLUMN c;
+    ALTER TABLE t1 ADD COLUMN d;
+    UPDATE t1 SET c=a/4, d=a/2;
+    CREATE INDEX t1bcd ON t1(b,c,d);
+    CREATE INDEX t1cdb ON t1(c,d,b);
+    CREATE INDEX t1cbd ON t1(c,b,d);
+    ANALYZE;
+    SELECT idx, stat FROM sqlite_stat1 WHERE tbl='t1' ORDER BY idx;
+  }
+} {t1a {128 1} t1b {128 128} t1bcd {128 128 4 2} t1cbd {128 4 4 2} t1cdb {128 4 2 2}}
+
+# Verify that collating sequences are taken into account when computing
+# ANALYZE statistics.
+#
+do_test analyze4-2.0 {
+  db eval {
+    CREATE TABLE t2(
+      x INTEGER PRIMARY KEY,
+      a TEXT COLLATE nocase,
+      b TEXT COLLATE rtrim,
+      c TEXT COLLATE binary
+    );
+    CREATE INDEX t2a ON t2(a);
+    CREATE INDEX t2b ON t2(b);
+    CREATE INDEX t2c ON t2(c);
+    CREATE INDEX t2c2 ON t2(c COLLATE nocase);
+    CREATE INDEX t2c3 ON t2(c COLLATE rtrim);
+    INSERT INTO t2 VALUES(1, 'abc', 'abc', 'abc');
+    INSERT INTO t2 VALUES(2, 'abC', 'abC', 'abC');
+    INSERT INTO t2 VALUES(3, 'abc ', 'abc ', 'abc ');
+    INSERT INTO t2 VALUES(4, 'abC ', 'abC ', 'abC ');
+    INSERT INTO t2 VALUES(5, 'aBc', 'aBc', 'aBc');
+    INSERT INTO t2 VALUES(6, 'aBC', 'aBC', 'aBC');
+    INSERT INTO t2 VALUES(7, 'aBc ', 'aBc ', 'aBc ');
+    INSERT INTO t2 VALUES(8, 'aBC ', 'aBC ', 'aBC ');
+    ANALYZE;
+    SELECT idx, stat FROM sqlite_stat1 WHERE tbl='t2' ORDER BY idx;
+  }
+} {t2a {8 4} t2b {8 2} t2c {8 1} t2c2 {8 4} t2c3 {8 2}}
+
+finish_test
diff --git a/test/analyze5.test b/test/analyze5.test
new file mode 100644
index 0000000000000000000000000000000000000000..e58457a6776d534ddf12e0feed56a445871838d3
--- /dev/null
+++ b/test/analyze5.test
@@ -0,0 +1,247 @@
+# 2011 January 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements tests for SQLite library.  The focus of the tests
+# in this file is the use of the sqlite_stat4 histogram data on tables
+# with many repeated values and only a few distinct values.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !stat4 {
+  finish_test
+  return
+}
+
+set testprefix analyze5
+
+proc eqp {sql {db db}} {
+  uplevel execsql [list "EXPLAIN QUERY PLAN $sql"] $db
+}
+
+proc alpha {blob} {
+  set ret ""
+  foreach c [split $blob {}] {
+    if {[string is alpha $c]} {append ret $c}
+  }
+  return $ret
+}
+db func alpha alpha
+
+db func lindex lindex
+
+unset -nocomplain i t u v w x y z
+do_test analyze5-1.0 {
+  db eval {CREATE TABLE t1(t,u,v TEXT COLLATE nocase,w,x,y,z)}
+  for {set i 0} {$i < 1000} {incr i} {
+    set y [expr {$i>=25 && $i<=50}]
+    set z [expr {($i>=400) + ($i>=700) + ($i>=875)}]
+    set x $z
+    set w $z
+    set t [expr {$z+0.5}]
+    switch $z {
+      0 {set u "alpha"; unset x}
+      1 {set u "bravo"}
+      2 {set u "charlie"}
+      3 {set u "delta"; unset w}
+    }
+    if {$i%2} {set v $u} {set v [string toupper $u]}
+    db eval {INSERT INTO t1 VALUES($t,$u,$v,$w,$x,$y,$z)}
+  }
+  db eval { 
+    CREATE INDEX t1t ON t1(t);  -- 0.5, 1.5, 2.5, and 3.5
+    CREATE INDEX t1u ON t1(u);  -- text
+    CREATE INDEX t1v ON t1(v);  -- mixed case text
+    CREATE INDEX t1w ON t1(w);  -- integers 0, 1, 2 and a few NULLs
+    CREATE INDEX t1x ON t1(x);  -- integers 1, 2, 3 and many NULLs
+    CREATE INDEX t1y ON t1(y);  -- integers 0 and very few 1s
+    CREATE INDEX t1z ON t1(z);  -- integers 0, 1, 2, and 3
+    ANALYZE;
+  }
+  db eval {
+    SELECT DISTINCT lindex(test_decode(sample),0) 
+      FROM sqlite_stat4 WHERE idx='t1u' ORDER BY nlt;
+  }
+} {alpha bravo charlie delta}
+
+do_test analyze5-1.1 {
+  db eval {
+    SELECT DISTINCT lower(lindex(test_decode(sample), 0)) 
+      FROM sqlite_stat4 WHERE idx='t1v' ORDER BY 1
+  }
+} {alpha bravo charlie delta}
+do_test analyze5-1.2 {
+  db eval {SELECT idx, count(*) FROM sqlite_stat4 GROUP BY 1 ORDER BY 1}
+} {t1t 8 t1u 8 t1v 8 t1w 8 t1x 8 t1y 9 t1z 8}
+
+# Verify that range queries generate the correct row count estimates
+#
+foreach {testid where index rows} {
+    1  {z>=0 AND z<=0}       t1z  400
+    2  {z>=1 AND z<=1}       t1z  300
+    3  {z>=2 AND z<=2}       t1z  175
+    4  {z>=3 AND z<=3}       t1z  125
+    5  {z>=4 AND z<=4}       t1z    1
+    6  {z>=-1 AND z<=-1}     t1z    1
+    7  {z>1 AND z<3}         t1z  175
+    8  {z>0 AND z<100}       t1z  600
+    9  {z>=1 AND z<100}      t1z  600
+   10  {z>1 AND z<100}       t1z  300
+   11  {z>=2 AND z<100}      t1z  300
+   12  {z>2 AND z<100}       t1z  125
+   13  {z>=3 AND z<100}      t1z  125
+   14  {z>3 AND z<100}       t1z    1
+   15  {z>=4 AND z<100}      t1z    1
+   16  {z>=-100 AND z<=-1}   t1z    1
+   17  {z>=-100 AND z<=0}    t1z  400
+   18  {z>=-100 AND z<0}     t1z    1
+   19  {z>=-100 AND z<=1}    t1z  700
+   20  {z>=-100 AND z<2}     t1z  700
+   21  {z>=-100 AND z<=2}    t1z  875
+   22  {z>=-100 AND z<3}     t1z  875
+  
+   31  {z>=0.0 AND z<=0.0}   t1z  400
+   32  {z>=1.0 AND z<=1.0}   t1z  300
+   33  {z>=2.0 AND z<=2.0}   t1z  175
+   34  {z>=3.0 AND z<=3.0}   t1z  125
+   35  {z>=4.0 AND z<=4.0}   t1z    1
+   36  {z>=-1.0 AND z<=-1.0} t1z    1
+   37  {z>1.5 AND z<3.0}     t1z  174
+   38  {z>0.5 AND z<100}     t1z  599
+   39  {z>=1.0 AND z<100}    t1z  600
+   40  {z>1.5 AND z<100}     t1z  299
+   41  {z>=2.0 AND z<100}    t1z  300
+   42  {z>2.1 AND z<100}     t1z  124
+   43  {z>=3.0 AND z<100}    t1z  125
+   44  {z>3.2 AND z<100}     t1z    1
+   45  {z>=4.0 AND z<100}    t1z    1
+   46  {z>=-100 AND z<=-1.0} t1z    1
+   47  {z>=-100 AND z<=0.0}  t1z  400
+   48  {z>=-100 AND z<0.0}   t1z    1
+   49  {z>=-100 AND z<=1.0}  t1z  700
+   50  {z>=-100 AND z<2.0}   t1z  700
+   51  {z>=-100 AND z<=2.0}  t1z  875
+   52  {z>=-100 AND z<3.0}   t1z  875
+  
+  101  {z=-1}                t1z    1
+  102  {z=0}                 t1z  400
+  103  {z=1}                 t1z  300
+  104  {z=2}                 t1z  175
+  105  {z=3}                 t1z  125
+  106  {z=4}                 t1z    1
+  107  {z=-10.0}             t1z    1
+  108  {z=0.0}               t1z  400
+  109  {z=1.0}               t1z  300
+  110  {z=2.0}               t1z  175
+  111  {z=3.0}               t1z  125
+  112  {z=4.0}               t1z    1
+  113  {z=1.5}               t1z    1
+  114  {z=2.5}               t1z    1
+  
+  201  {z IN (-1)}           t1z    1
+  202  {z IN (0)}            t1z  400
+  203  {z IN (1)}            t1z  300
+  204  {z IN (2)}            t1z  175
+  205  {z IN (3)}            t1z  125
+  206  {z IN (4)}            t1z    1
+  207  {z IN (0.5)}          t1z    1
+  208  {z IN (0,1)}          t1z  700
+  209  {z IN (0,1,2)}        t1z  875
+  210  {z IN (0,1,2,3)}      {}   100
+  211  {z IN (0,1,2,3,4,5)}  {}   100
+  212  {z IN (1,2)}          t1z  475
+  213  {z IN (2,3)}          t1z  300
+  214  {z=3 OR z=2}          t1z  300
+  215  {z IN (-1,3)}         t1z  126
+  216  {z=-1 OR z=3}         t1z  126
+
+  300  {y=0}                 t1y  974
+  301  {y=1}                 t1y   26
+  302  {y=0.1}               t1y    1
+
+  400  {x IS NULL}           t1x  400
+
+} {
+  # Verify that the expected index is used with the expected row count
+  # No longer valid due to an EXPLAIN QUERY PLAN output format change
+  # do_test analyze5-1.${testid}a {
+  #   set x [lindex [eqp "SELECT * FROM t1 WHERE $where"] 3]
+  #   set idx {}
+  #   regexp {INDEX (t1.) } $x all idx
+  #   regexp {~([0-9]+) rows} $x all nrow
+  #   list $idx $nrow
+  # } [list $index $rows]
+
+  # Verify that the same result is achieved regardless of whether or not
+  # the index is used
+  do_test analyze5-1.${testid}b {
+    set w2 [string map {y +y z +z} $where]
+    set a1 [db eval "SELECT rowid FROM t1 NOT INDEXED WHERE $w2\
+                     ORDER BY +rowid"]
+    set a2 [db eval "SELECT rowid FROM t1 WHERE $where ORDER BY +rowid"]
+    if {$a1==$a2} {
+      set res ok
+    } else {
+      set res "a1=\[$a1\] a2=\[$a2\]"
+    }
+    set res
+  } {ok}
+}
+
+# Increase the number of NULLs in column x
+#
+db eval {
+   UPDATE t1 SET x=NULL;
+   UPDATE t1 SET x=rowid
+    WHERE rowid IN (SELECT rowid FROM t1 ORDER BY random() LIMIT 5);
+   ANALYZE;
+}
+
+# Verify that range queries generate the correct row count estimates
+#
+foreach {testid where index rows} {
+  500  {x IS NULL AND u='charlie'}         t1u  17
+  501  {x=1 AND u='charlie'}               t1x   1
+  502  {x IS NULL}                         t1x 995
+  503  {x=1}                               t1x   1
+  504  {x IS NOT NULL}                     t1x   2
+  505  {+x IS NOT NULL}                     {} 500
+  506  {upper(x) IS NOT NULL}               {} 500
+
+} {
+  # Verify that the expected index is used with the expected row count
+  # No longer valid due to an EXPLAIN QUERY PLAN format change
+  # do_test analyze5-1.${testid}a {
+  #   set x [lindex [eqp "SELECT * FROM t1 WHERE $where"] 3]
+  #   set idx {}
+  #   regexp {INDEX (t1.) } $x all idx
+  #   regexp {~([0-9]+) rows} $x all nrow
+  #   list $idx $nrow
+  # } [list $index $rows]
+
+  # Verify that the same result is achieved regardless of whether or not
+  # the index is used
+  do_test analyze5-1.${testid}b {
+    set w2 [string map {y +y z +z} $where]
+    set a1 [db eval "SELECT rowid FROM t1 NOT INDEXED WHERE $w2\
+                     ORDER BY +rowid"]
+    set a2 [db eval "SELECT rowid FROM t1 WHERE $where ORDER BY +rowid"]
+    if {$a1==$a2} {
+      set res ok
+    } else {
+      set res "a1=\[$a1\] a2=\[$a2\]"
+    }
+    set res
+  } {ok}
+}
+
+finish_test
diff --git a/test/analyze6.test b/test/analyze6.test
new file mode 100644
index 0000000000000000000000000000000000000000..807fec132a000c833859f62629a474af0bfd412e
--- /dev/null
+++ b/test/analyze6.test
@@ -0,0 +1,126 @@
+# 2011 March 3
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements tests for SQLite library.  The focus of the tests
+# in this file a corner-case query planner optimization involving the
+# join order of two tables of different sizes.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !stat4 {
+  finish_test
+  return
+}
+
+set testprefix analyze6
+
+proc eqp {sql {db db}} {
+  uplevel execsql [list "EXPLAIN QUERY PLAN $sql"] $db
+}
+
+do_test analyze6-1.0 {
+  db eval {
+    CREATE TABLE cat(x INT, yz TEXT);
+    CREATE UNIQUE INDEX catx ON cat(x);
+    /* Give cat 16 unique integers */
+    INSERT INTO cat(x) VALUES(1);
+    INSERT INTO cat(x) VALUES(2);
+    INSERT INTO cat(x) SELECT x+2 FROM cat;
+    INSERT INTO cat(x) SELECT x+4 FROM cat;
+    INSERT INTO cat(x) SELECT x+8 FROM cat;
+
+    CREATE TABLE ev(y INT);
+    CREATE INDEX evy ON ev(y);
+    /* ev will hold 32 copies of 16 integers found in cat */
+    INSERT INTO ev SELECT x FROM cat;
+    INSERT INTO ev SELECT x FROM cat;
+    INSERT INTO ev SELECT y FROM ev;
+    INSERT INTO ev SELECT y FROM ev;
+    INSERT INTO ev SELECT y FROM ev;
+    INSERT INTO ev SELECT y FROM ev;
+    ANALYZE;
+    SELECT count(*) FROM cat;
+    SELECT count(*) FROM ev;
+  }
+} {16 512}
+
+# The lowest cost plan is to scan CAT and for each integer there, do a single
+# lookup of the first corresponding entry in EV then read off the equal values
+# in EV.  (Prior to the 2011-03-04 enhancement to where.c, this query would
+# have used EV for the outer loop instead of CAT - which was about 3x slower.)
+#
+do_test analyze6-1.1 {
+  eqp {SELECT count(*) FROM ev, cat WHERE x=y}
+} {/*SCAN cat USING COVERING INDEX catx*SEARCH ev USING COVERING INDEX evy (y=?)*/}
+
+# The same plan is chosen regardless of the order of the tables in the
+# FROM clause.
+#
+do_eqp_test analyze6-1.2 {
+  SELECT count(*) FROM cat, ev WHERE x=y
+} {
+  QUERY PLAN
+  |--SCAN cat USING COVERING INDEX catx
+  `--SEARCH ev USING COVERING INDEX evy (y=?)
+}
+
+
+# Ticket [83ea97620bd3101645138b7b0e71c12c5498fe3d] 2011-03-30
+# If ANALYZE is run on an empty table, make sure indices are used
+# on the table.
+#
+do_test analyze6-2.1 {
+  execsql {
+    CREATE TABLE t201(x INTEGER PRIMARY KEY, y UNIQUE, z);
+    CREATE INDEX t201z ON t201(z);
+    ANALYZE;
+  }
+  eqp {SELECT * FROM t201 WHERE z=5}
+} {/*SEARCH t201 USING INDEX t201z (z=?)*/}
+do_test analyze6-2.2 {
+  eqp {SELECT * FROM t201 WHERE y=5}
+} {/*SEARCH t201 USING INDEX sqlite_autoindex_t201_1 (y=?)*/}
+do_test analyze6-2.3 {
+  eqp {SELECT * FROM t201 WHERE x=5}
+} {/*SEARCH t201 USING INTEGER PRIMARY KEY (rowid=?)*/}
+do_test analyze6-2.4 {
+  execsql {
+    INSERT INTO t201 VALUES(1,2,3),(2,3,4),(3,4,5);
+    ANALYZE t201;
+  }
+  eqp {SELECT * FROM t201 WHERE z=5}
+} {/*SEARCH t201 USING INDEX t201z (z=?)*/}
+do_test analyze6-2.5 {
+  eqp {SELECT * FROM t201 WHERE y=5}
+} {/*SEARCH t201 USING INDEX sqlite_autoindex_t201_1 (y=?)*/}
+do_test analyze6-2.6 {
+  eqp {SELECT * FROM t201 WHERE x=5}
+} {/*SEARCH t201 USING INTEGER PRIMARY KEY (rowid=?)*/}
+do_test analyze6-2.7 {
+  execsql {
+    INSERT INTO t201 VALUES(4,5,7);
+    INSERT INTO t201 SELECT x+100, y+100, z+100 FROM t201;
+    INSERT INTO t201 SELECT x+200, y+200, z+200 FROM t201;
+    INSERT INTO t201 SELECT x+400, y+400, z+400 FROM t201;
+    ANALYZE t201;
+  }
+  eqp {SELECT * FROM t201 WHERE z=5}
+} {/*SEARCH t201 USING INDEX t201z (z=?)*/}
+do_test analyze6-2.8 {
+  eqp {SELECT * FROM t201 WHERE y=5}
+} {/*SEARCH t201 USING INDEX sqlite_autoindex_t201_1 (y=?)*/}
+do_test analyze6-2.9 {
+  eqp {SELECT * FROM t201 WHERE x=5}
+} {/*SEARCH t201 USING INTEGER PRIMARY KEY (rowid=?)*/}
+
+finish_test
diff --git a/test/analyze7.test b/test/analyze7.test
new file mode 100644
index 0000000000000000000000000000000000000000..53a80f64192dc85659ee3b82a67db75997287416
--- /dev/null
+++ b/test/analyze7.test
@@ -0,0 +1,114 @@
+# 2011 April 1
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+# This file implements tests for the ANALYZE command when an idnex
+# name is given as the argument.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# There is nothing to test if ANALYZE is disable for this build.
+#
+ifcapable {!analyze||!vtab} {
+  finish_test
+  return
+}
+
+# Generate some test data
+#
+do_test analyze7-1.0 {
+  load_static_extension db wholenumber
+  execsql {
+    CREATE TABLE t1(a,b,c,d);
+    CREATE INDEX t1a ON t1(a);
+    CREATE INDEX t1b ON t1(b);
+    CREATE INDEX t1cd ON t1(c,d);
+    CREATE VIRTUAL TABLE nums USING wholenumber;
+    INSERT INTO t1 SELECT value, value, value/100, value FROM nums
+                    WHERE value BETWEEN 1 AND 256;
+    EXPLAIN QUERY PLAN SELECT * FROM t1 WHERE a=123;
+  }
+} {/*SEARCH t1 USING INDEX t1a (a=?)*/}
+do_test analyze7-1.1 {
+  execsql {EXPLAIN QUERY PLAN SELECT * FROM t1 WHERE b=123;}
+} {/*SEARCH t1 USING INDEX t1b (b=?)*/}
+do_test analyze7-1.2 {
+  execsql {EXPLAIN QUERY PLAN SELECT * FROM t1 WHERE c=2;}
+} {/*SEARCH t1 USING INDEX t1cd (c=?)*/}
+
+# Run an analyze on one of the three indices.  Verify that this
+# effects the row-count estimate on the one query that uses that
+# one index.
+#
+do_test analyze7-2.0 {
+  execsql {ANALYZE t1a;}
+  db cache flush
+  execsql {EXPLAIN QUERY PLAN SELECT * FROM t1 WHERE a=123;}
+} {/*SEARCH t1 USING INDEX t1a (a=?)*/}
+do_test analyze7-2.1 {
+  execsql {EXPLAIN QUERY PLAN SELECT * FROM t1 WHERE b=123;}
+} {/*SEARCH t1 USING INDEX t1b (b=?)*/}
+do_test analyze7-2.2 {
+  execsql {EXPLAIN QUERY PLAN SELECT * FROM t1 WHERE c=2;}
+} {/*SEARCH t1 USING INDEX t1cd (c=?)*/}
+
+# Verify that since the query planner now things that t1a is more
+# selective than t1b, it prefers to use t1a.
+#
+do_test analyze7-2.3 {
+  execsql {EXPLAIN QUERY PLAN SELECT * FROM t1 WHERE a=123 AND b=123}
+} {/*SEARCH t1 USING INDEX t1a (a=?)*/}
+
+# Run an analysis on another of the three indices.  Verify  that this
+# new analysis works and does not disrupt the previous analysis.
+#
+do_test analyze7-3.0 {
+  execsql {ANALYZE t1cd;}
+  db cache flush;
+  execsql {EXPLAIN QUERY PLAN SELECT * FROM t1 WHERE a=123;}
+} {/*SEARCH t1 USING INDEX t1a (a=?)*/}
+do_test analyze7-3.1 {
+  execsql {EXPLAIN QUERY PLAN SELECT * FROM t1 WHERE b=123;}
+} {/*SEARCH t1 USING INDEX t1b (b=?)*/}
+do_test analyze7-3.2.1 {
+  execsql {EXPLAIN QUERY PLAN SELECT * FROM t1 WHERE c=?;}
+} {/*SEARCH t1 USING INDEX t1cd (c=?)*/}
+ifcapable stat4 {
+  # If ENABLE_STAT4 is defined, SQLite comes up with a different estimated
+  # row count for (c=2) than it does for (c=?).
+  do_test analyze7-3.2.2 {
+    execsql {EXPLAIN QUERY PLAN SELECT * FROM t1 WHERE c=2;}
+  } {/*SEARCH t1 USING INDEX t1cd (c=?)*/}
+} else {
+  # If ENABLE_STAT4 is not defined, the expected row count for (c=2) is the
+  # same as that for (c=?).
+  do_test analyze7-3.2.3 {
+    execsql {EXPLAIN QUERY PLAN SELECT * FROM t1 WHERE c=2;}
+  } {/*SEARCH t1 USING INDEX t1cd (c=?)*/}
+}
+do_test analyze7-3.3 {
+  execsql {EXPLAIN QUERY PLAN SELECT * FROM t1 WHERE a=123 AND b=123}
+} {/*SEARCH t1 USING INDEX t1a (a=?)*/}
+
+ifcapable {!stat4} {
+  do_test analyze7-3.4 {
+    execsql {EXPLAIN QUERY PLAN SELECT * FROM t1 WHERE c=123 AND b=123}
+  } {/*SEARCH t1 USING INDEX t1b (b=?)*/}
+  do_test analyze7-3.5 {
+    execsql {EXPLAIN QUERY PLAN SELECT * FROM t1 WHERE a=123 AND c=123}
+  } {/*SEARCH t1 USING INDEX t1a (a=?)*/}
+}
+do_test analyze7-3.6 {
+  execsql {EXPLAIN QUERY PLAN SELECT * FROM t1 WHERE c=123 AND d=123 AND b=123}
+} {/*SEARCH t1 USING INDEX t1cd (c=? AND d=?)*/}
+
+finish_test
diff --git a/test/analyze8.test b/test/analyze8.test
new file mode 100644
index 0000000000000000000000000000000000000000..69605fd6f758d2d1d7d55af06480ffa3630891e5
--- /dev/null
+++ b/test/analyze8.test
@@ -0,0 +1,115 @@
+# 2011 August 13
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements tests for SQLite library.  The focus of the tests
+# in this file is testing the capabilities of sqlite_stat4.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !stat4 {
+  finish_test
+  return
+}
+
+set testprefix analyze8
+
+proc eqp {sql {db db}} {
+  uplevel execsql [list "EXPLAIN QUERY PLAN $sql"] $db
+}
+
+# Scenario:
+#
+#    Two indices.  One has mostly singleton entries, but for a few
+#    values there are hundreds of entries.  The other has 10-20
+#    entries per value.
+#
+# Verify that the query planner chooses the first index for the singleton
+# entries and the second index for the others.
+#
+do_test 1.0 {
+  db eval {
+    CREATE TABLE t1(a,b,c,d);
+    CREATE INDEX t1a ON t1(a);
+    CREATE INDEX t1b ON t1(b);
+    CREATE INDEX t1c ON t1(c);
+  }
+  for {set i 0} {$i<1000} {incr i} {
+    if {$i%2==0} {set a $i} {set a [expr {($i%8)*100}]}
+    set b [expr {$i/10}]
+    set c [expr {$i/8}]
+    set c [expr {$c*$c*$c}]
+    db eval {INSERT INTO t1 VALUES($a,$b,$c,$i)}
+  }
+  db eval {ANALYZE}
+} {}
+
+# The a==100 comparison is expensive because there are many rows
+# with a==100.  And so for those cases, choose the t1b index.
+#
+# Buf ro a==99 and a==101, there are far fewer rows so choose
+# the t1a index.
+#
+do_test 1.1 {
+  eqp {SELECT * FROM t1 WHERE a=100 AND b=55}
+} {/*SEARCH t1 USING INDEX t1b (b=?)*/}
+do_test 1.2 {
+  eqp {SELECT * FROM t1 WHERE a=99 AND b=55}
+} {/*SEARCH t1 USING INDEX t1a (a=?)*/}
+do_test 1.3 {
+  eqp {SELECT * FROM t1 WHERE a=101 AND b=55}
+} {/*SEARCH t1 USING INDEX t1a (a=?)*/}
+do_test 1.4 {
+  eqp {SELECT * FROM t1 WHERE a=100 AND b=56}
+} {/*SEARCH t1 USING INDEX t1b (b=?)*/}
+do_test 1.5 {
+  eqp {SELECT * FROM t1 WHERE a=99 AND b=56}
+} {/*SEARCH t1 USING INDEX t1a (a=?)*/}
+do_test 1.6 {
+  eqp {SELECT * FROM t1 WHERE a=101 AND b=56}
+} {/*SEARCH t1 USING INDEX t1a (a=?)*/}
+do_test 2.1 {
+  eqp {SELECT * FROM t1 WHERE a=100 AND b BETWEEN 50 AND 54}
+} {/*SEARCH t1 USING INDEX t1b (b>? AND b<?)*/}
+
+# There are many more values of c between 0 and 100000 than there are
+# between 800000 and 900000.  So t1c is more selective for the latter
+# range.
+# 
+# Test 3.2 is a little unstable. It depends on the planner estimating
+# that (b BETWEEN 30 AND 34) will match more rows than (c BETWEEN
+# 800000 AND 900000). Which is a pretty close call (50 vs. 32), so
+# the planner could get it wrong with an unlucky set of samples. This
+# case happens to work, but others ("b BETWEEN 40 AND 44" for example) 
+# will fail.
+#
+do_execsql_test 3.0 {
+  SELECT count(*) FROM t1 WHERE b BETWEEN 30 AND 34;
+  SELECT count(*) FROM t1 WHERE c BETWEEN 0 AND 100000;
+  SELECT count(*) FROM t1 WHERE c BETWEEN 800000 AND 900000;
+} {50 376 32}
+do_test 3.1 {
+  eqp {SELECT * FROM t1 WHERE b BETWEEN 30 AND 34 AND c BETWEEN 0 AND 100000}
+} {/*SEARCH t1 USING INDEX t1b (b>? AND b<?)*/}
+do_test 3.2 {
+  eqp {SELECT * FROM t1
+       WHERE b BETWEEN 30 AND 34 AND c BETWEEN 800000 AND 900000}
+} {/*SEARCH t1 USING INDEX t1c (c>? AND c<?)*/}
+do_test 3.3 {
+  eqp {SELECT * FROM t1 WHERE a=100 AND c BETWEEN 0 AND 100000}
+} {/*SEARCH t1 USING INDEX t1a (a=?)*/}
+do_test 3.4 {
+  eqp {SELECT * FROM t1
+       WHERE a=100 AND c BETWEEN 800000 AND 900000}
+} {/*SEARCH t1 USING INDEX t1c (c>? AND c<?)*/}
+
+finish_test
diff --git a/test/analyze9.test b/test/analyze9.test
new file mode 100644
index 0000000000000000000000000000000000000000..b2121fd07b3e9a47ab408d58305109de9ecdb77c
--- /dev/null
+++ b/test/analyze9.test
@@ -0,0 +1,1235 @@
+# 2013 August 3
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains automated tests used to verify that the sqlite_stat4
+# functionality is working.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix analyze9
+
+ifcapable !stat4 {
+  finish_test
+  return
+}
+
+proc s {blob} {
+  set ret ""
+  binary scan $blob c* bytes
+  foreach b $bytes {
+    set t [binary format c $b]
+    if {[string is print $t]} {
+      append ret $t
+    } else {
+      append ret .
+    }
+  }
+  return $ret
+}
+db function s s
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a TEXT, b TEXT); 
+  INSERT INTO t1 VALUES('(0)', '(0)');
+  INSERT INTO t1 VALUES('(1)', '(1)');
+  INSERT INTO t1 VALUES('(2)', '(2)');
+  INSERT INTO t1 VALUES('(3)', '(3)');
+  INSERT INTO t1 VALUES('(4)', '(4)');
+  CREATE INDEX i1 ON t1(a, b);
+} {}
+
+
+do_execsql_test 1.1 {
+  ANALYZE;
+} {}
+
+do_execsql_test 1.2 {
+  SELECT tbl,idx,nEq,nLt,nDLt,test_decode(sample) FROM sqlite_stat4;
+} {
+  t1 i1 {1 1 1} {0 0 0} {0 0 0} {(0) (0) 1}
+  t1 i1 {1 1 1} {1 1 1} {1 1 1} {(1) (1) 2}
+  t1 i1 {1 1 1} {2 2 2} {2 2 2} {(2) (2) 3}
+  t1 i1 {1 1 1} {3 3 3} {3 3 3} {(3) (3) 4}
+  t1 i1 {1 1 1} {4 4 4} {4 4 4} {(4) (4) 5}
+}
+
+if {[permutation] != "utf16"} {
+  do_execsql_test 1.3 {
+    SELECT tbl,idx,nEq,nLt,nDLt,s(sample) FROM sqlite_stat4;
+  } {
+    t1 i1 {1 1 1} {0 0 0} {0 0 0} ....(0)(0)
+    t1 i1 {1 1 1} {1 1 1} {1 1 1} ....(1)(1).
+    t1 i1 {1 1 1} {2 2 2} {2 2 2} ....(2)(2).
+    t1 i1 {1 1 1} {3 3 3} {3 3 3} ....(3)(3).
+    t1 i1 {1 1 1} {4 4 4} {4 4 4} ....(4)(4).
+  }
+}
+
+
+#-------------------------------------------------------------------------
+# This is really just to test SQL user function "test_decode".
+#
+reset_db
+do_execsql_test 2.1 {
+  CREATE TABLE t1(a, b, c);
+  INSERT INTO t1 VALUES('some text', 14, NULL);
+  INSERT INTO t1 VALUES(22.0, NULL, x'656667');
+  CREATE INDEX i1 ON t1(a, b, c);
+  ANALYZE;
+  SELECT test_decode(sample) FROM sqlite_stat4;
+} {
+  {22.0 NULL x'656667' 2} 
+  {{some text} 14 NULL 1}
+}
+
+#-------------------------------------------------------------------------
+# 
+reset_db
+do_execsql_test 3.1 {
+  CREATE TABLE t2(a, b);
+  CREATE INDEX i2 ON t2(a, b);
+  BEGIN;
+}
+
+do_test 3.2 {
+  for {set i 0} {$i < 1000} {incr i} {
+    set a [expr $i / 10]
+    set b [expr int(rand() * 15.0)]
+    execsql { INSERT INTO t2 VALUES($a, $b) }
+  }
+  execsql COMMIT
+} {}
+
+db func lindex lindex
+
+# Each value of "a" occurs exactly 10 times in the table.
+#
+do_execsql_test 3.3.1 {
+  SELECT count(*) FROM t2 GROUP BY a;
+} [lrange [string repeat "10 " 100] 0 99]
+
+# The first element in the "nEq" list of all samples should therefore be 10.
+#
+do_execsql_test 3.3.2 {
+  ANALYZE;
+  SELECT lindex(nEq, 0) FROM sqlite_stat4;
+} [lrange [string repeat "10 " 100] 0 23]
+
+#-------------------------------------------------------------------------
+# 
+do_execsql_test 3.4 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+  INSERT INTO t1 VALUES(1, 1, 'one-a');
+  INSERT INTO t1 VALUES(11, 1, 'one-b');
+  INSERT INTO t1 VALUES(21, 1, 'one-c');
+  INSERT INTO t1 VALUES(31, 1, 'one-d');
+  INSERT INTO t1 VALUES(41, 1, 'one-e');
+  INSERT INTO t1 VALUES(51, 1, 'one-f');
+  INSERT INTO t1 VALUES(61, 1, 'one-g');
+  INSERT INTO t1 VALUES(71, 1, 'one-h');
+  INSERT INTO t1 VALUES(81, 1, 'one-i');
+  INSERT INTO t1 VALUES(91, 1, 'one-j');
+  INSERT INTO t1 SELECT a+1,2,'two' || substr(c,4) FROM t1;
+  INSERT INTO t1 SELECT a+2,3,'three'||substr(c,4) FROM t1 WHERE c GLOB 'one-*';
+  INSERT INTO t1 SELECT a+3,4,'four'||substr(c,4) FROM t1 WHERE c GLOB 'one-*';
+  INSERT INTO t1 SELECT a+4,5,'five'||substr(c,4) FROM t1 WHERE c GLOB 'one-*';
+  INSERT INTO t1 SELECT a+5,6,'six'||substr(c,4) FROM t1 WHERE c GLOB 'one-*';	
+  CREATE INDEX t1b ON t1(b);
+  ANALYZE;
+  SELECT c FROM t1 WHERE b=3 AND a BETWEEN 30 AND 60;
+} {three-d three-e three-f}
+
+
+#-------------------------------------------------------------------------
+# These tests verify that the sample selection for stat4 appears to be 
+# working as designed.
+#
+
+reset_db
+db func lindex lindex
+db func lrange lrange
+
+do_execsql_test 4.0 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a, b, c);
+  CREATE INDEX i1 ON t1(c, b, a);
+}
+
+
+proc insert_filler_rows_n {iStart args} {
+  set A(-ncopy) 1
+  set A(-nval) 1
+
+  foreach {k v} $args {
+    if {[info exists A($k)]==0} { error "no such option: $k" }
+    set A($k) $v
+  }
+  if {[llength $args] % 2} {
+    error "option requires an argument: [lindex $args end]"
+  }
+
+  for {set i 0} {$i < $A(-nval)} {incr i} {
+    set iVal [expr $iStart+$i]
+    for {set j 0} {$j < $A(-ncopy)} {incr j} {
+      execsql { INSERT INTO t1 VALUES($iVal, $iVal, $iVal) }
+    }
+  }
+}
+
+do_test 4.1 {
+  execsql { BEGIN }
+  insert_filler_rows_n  0  -ncopy 10 -nval 19
+  insert_filler_rows_n 20  -ncopy  1 -nval 100
+
+  execsql {
+    INSERT INTO t1(c, b, a) VALUES(200, 1, 'a');
+    INSERT INTO t1(c, b, a) VALUES(200, 1, 'b');
+    INSERT INTO t1(c, b, a) VALUES(200, 1, 'c');
+
+    INSERT INTO t1(c, b, a) VALUES(200, 2, 'e');
+    INSERT INTO t1(c, b, a) VALUES(200, 2, 'f');
+
+    INSERT INTO t1(c, b, a) VALUES(201, 3, 'g');
+    INSERT INTO t1(c, b, a) VALUES(201, 4, 'h');
+
+    ANALYZE;
+    SELECT count(*) FROM sqlite_stat4;
+    SELECT count(*) FROM t1;
+  }
+} {24 297}
+
+do_execsql_test 4.2 {
+  SELECT 
+    neq,
+    lrange(nlt, 0, 2),
+    lrange(ndlt, 0, 2),
+    lrange(test_decode(sample), 0, 2)
+    FROM sqlite_stat4
+  ORDER BY rowid LIMIT 16;
+} {
+  {10 10 10 1} {0 0 0} {0 0 0} {0 0 0}
+  {10 10 10 1} {10 10 10} {1 1 1} {1 1 1}
+  {10 10 10 1} {20 20 20} {2 2 2} {2 2 2}
+  {10 10 10 1} {30 30 30} {3 3 3} {3 3 3}
+  {10 10 10 1} {40 40 40} {4 4 4} {4 4 4}
+  {10 10 10 1} {50 50 50} {5 5 5} {5 5 5}
+  {10 10 10 1} {60 60 60} {6 6 6} {6 6 6}
+  {10 10 10 1} {70 70 70} {7 7 7} {7 7 7}
+  {10 10 10 1} {80 80 80} {8 8 8} {8 8 8}
+  {10 10 10 1} {90 90 90} {9 9 9} {9 9 9}
+  {10 10 10 1} {100 100 100} {10 10 10} {10 10 10}
+  {10 10 10 1} {110 110 110} {11 11 11} {11 11 11}
+  {10 10 10 1} {120 120 120} {12 12 12} {12 12 12}
+  {10 10 10 1} {130 130 130} {13 13 13} {13 13 13}
+  {10 10 10 1} {140 140 140} {14 14 14} {14 14 14}
+  {10 10 10 1} {150 150 150} {15 15 15} {15 15 15}
+}
+
+do_execsql_test 4.3 {
+  SELECT 
+    neq,
+    lrange(nlt, 0, 2),
+    lrange(ndlt, 0, 2),
+    lrange(test_decode(sample), 0, 1)
+    FROM sqlite_stat4
+  ORDER BY rowid DESC LIMIT 2;
+} {
+  {2 1 1 1} {295 296 296} {120 122 125} {201 4} 
+  {5 3 1 1} {290 290 290} {119 119 119} {200 1}
+}
+
+do_execsql_test 4.4 { SELECT count(DISTINCT c) FROM t1 WHERE c<201 } 120
+do_execsql_test 4.5 { SELECT count(DISTINCT c) FROM t1 WHERE c<200 } 119
+
+# Check that the perioidic samples are present.
+do_execsql_test 4.6 {
+  SELECT count(*) FROM sqlite_stat4
+  WHERE lindex(test_decode(sample), 3) IN 
+    ('34', '68', '102', '136', '170', '204', '238', '272')
+} {8}
+
+reset_db
+do_test 4.7 {
+  execsql { 
+    BEGIN;
+    CREATE TABLE t1(o,t INTEGER PRIMARY KEY);
+    CREATE INDEX i1 ON t1(o);
+  }
+  for {set i 0} {$i<10000} {incr i [expr (($i<1000)?1:10)]} {
+    execsql { INSERT INTO t1 VALUES('x', $i) }
+  }
+  execsql {
+    COMMIT;
+    ANALYZE;
+    SELECT count(*) FROM sqlite_stat4;
+  }
+} {8}
+do_execsql_test 4.8 {
+  SELECT test_decode(sample) FROM sqlite_stat4;
+} {
+  {x 211} {x 423} {x 635} {x 847} 
+  {x 1590} {x 3710} {x 5830} {x 7950}
+}
+
+
+#-------------------------------------------------------------------------
+# The following would cause a crash at one point.
+#
+reset_db
+do_execsql_test 5.1 {
+  PRAGMA encoding = 'utf-16';
+  CREATE TABLE t0(v);
+  ANALYZE;
+}
+
+#-------------------------------------------------------------------------
+# This was also crashing (corrupt sqlite_stat4 table).
+#
+reset_db
+do_execsql_test 6.1 {
+  CREATE TABLE t1(a, b);
+  CREATE INDEX i1 ON t1(a);
+  CREATE INDEX i2 ON t1(b);
+  INSERT INTO t1 VALUES(1, 1);
+  INSERT INTO t1 VALUES(2, 2);
+  INSERT INTO t1 VALUES(3, 3);
+  INSERT INTO t1 VALUES(4, 4);
+  INSERT INTO t1 VALUES(5, 5);
+  ANALYZE;
+  PRAGMA writable_schema = 1;
+  CREATE TEMP TABLE x1 AS
+    SELECT tbl,idx,neq,nlt,ndlt,sample FROM sqlite_stat4
+    ORDER BY (rowid%5), rowid;
+  DELETE FROM sqlite_stat4;
+  INSERT INTO sqlite_stat4 SELECT * FROM x1;
+  PRAGMA writable_schema = 0;
+  ANALYZE sqlite_master;
+}
+do_execsql_test 6.2 {
+  SELECT * FROM t1 WHERE a = 'abc';
+}
+
+#-------------------------------------------------------------------------
+# The following tests experiment with adding corrupted records to the
+# 'sample' column of the sqlite_stat4 table.
+#
+reset_db
+sqlite3_db_config_lookaside db 0 0 0
+
+database_may_be_corrupt
+do_execsql_test 7.1 {
+  CREATE TABLE t1(a, b);
+  CREATE INDEX i1 ON t1(a, b);
+  INSERT INTO t1 VALUES(1, 1);
+  INSERT INTO t1 VALUES(2, 2);
+  INSERT INTO t1 VALUES(3, 3);
+  INSERT INTO t1 VALUES(4, 4);
+  INSERT INTO t1 VALUES(5, 5);
+  ANALYZE;
+  UPDATE sqlite_stat4 SET sample = X'' WHERE rowid = 1;
+  ANALYZE sqlite_master;
+}
+
+do_execsql_test 7.2 {
+  UPDATE sqlite_stat4 SET sample = X'FFFF';
+  ANALYZE sqlite_master;
+  SELECT * FROM t1 WHERE a = 1;
+} {1 1}
+
+do_execsql_test 7.3 {
+  ANALYZE;
+  UPDATE sqlite_stat4 SET neq = '0 0 0';
+  ANALYZE sqlite_master;
+  SELECT * FROM t1 WHERE a = 1;
+} {1 1}
+
+do_execsql_test 7.4 {
+  ANALYZE;
+  UPDATE sqlite_stat4 SET ndlt = '0 0 0';
+  ANALYZE sqlite_master;
+  SELECT * FROM t1 WHERE a = 3;
+} {3 3}
+
+do_execsql_test 7.5 {
+  ANALYZE;
+  UPDATE sqlite_stat4 SET nlt = '0 0 0';
+  ANALYZE sqlite_master;
+  SELECT * FROM t1 WHERE a = 5;
+} {5 5}
+
+database_never_corrupt
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 8.1 {
+  CREATE TABLE t1(x TEXT);
+  CREATE INDEX i1 ON t1(x);
+  INSERT INTO t1 VALUES('1');
+  INSERT INTO t1 VALUES('2');
+  INSERT INTO t1 VALUES('3');
+  INSERT INTO t1 VALUES('4');
+  ANALYZE;
+}
+do_execsql_test 8.2 {
+  SELECT * FROM t1 WHERE x = 3;
+} {3}
+
+#-------------------------------------------------------------------------
+# Check that the bug fixed by [91733bc485] really is fixed.
+#
+reset_db
+do_execsql_test 9.1 {
+  CREATE TABLE t1(a, b, c, d, e);
+  CREATE INDEX i1 ON t1(a, b, c, d);
+  CREATE INDEX i2 ON t1(e);
+}
+do_test 9.2 {
+  execsql BEGIN;
+  for {set i 0} {$i < 100} {incr i} {
+    execsql "INSERT INTO t1 VALUES('x', 'y', 'z', $i, [expr $i/2])"
+  }
+  for {set i 0} {$i < 21} {incr i} {
+    execsql "INSERT INTO t1 VALUES('x', 'y', 'z', 101, $i)"
+  }
+  for {set i 102} {$i < 200} {incr i} {
+    execsql "INSERT INTO t1 VALUES('x', 'y', 'z', $i, [expr $i/2])"
+  }
+  execsql COMMIT
+  execsql ANALYZE
+} {}
+
+do_eqp_test 9.3.1 {
+  SELECT * FROM t1 WHERE a='x' AND b='y' AND c='z' AND d=101 AND e=5;
+} {/t1 USING INDEX i2/}
+do_eqp_test 9.3.2 {
+  SELECT * FROM t1 WHERE a='x' AND b='y' AND c='z' AND d=99 AND e=5;
+} {/t1 USING INDEX i1/}
+
+set value_d [expr 101]
+do_eqp_test 9.4.1 {
+  SELECT * FROM t1 WHERE a='x' AND b='y' AND c='z' AND d=$value_d AND e=5
+} {/t1 USING INDEX i2/}
+set value_d [expr 99]
+do_eqp_test 9.4.2 {
+  SELECT * FROM t1 WHERE a='x' AND b='y' AND c='z' AND d=$value_d AND e=5
+} {/t1 USING INDEX i1/}
+
+#-------------------------------------------------------------------------
+# Check that the planner takes stat4 data into account when considering
+# "IS NULL" and "IS NOT NULL" constraints.
+#
+do_execsql_test 10.1.1 {
+  DROP TABLE IF EXISTS t3;
+  CREATE TABLE t3(a, b);
+  CREATE INDEX t3a ON t3(a);
+  CREATE INDEX t3b ON t3(b);
+}
+do_test 10.1.2 {
+  for {set i 1} {$i < 100} {incr i} {
+    if {$i>90} { set a $i } else { set a NULL }
+    set b [expr $i % 5]
+    execsql "INSERT INTO t3 VALUES($a, $b)"
+  }
+  execsql ANALYZE
+} {}
+do_eqp_test 10.1.3 {
+  SELECT * FROM t3 WHERE a IS NULL AND b = 2
+} {/t3 USING INDEX t3b/}
+do_eqp_test 10.1.4 {
+  SELECT * FROM t3 WHERE a IS NOT NULL AND b = 2
+} {/t3 USING INDEX t3a/}
+
+do_execsql_test 10.2.1 {
+  DROP TABLE IF EXISTS t3;
+  CREATE TABLE t3(x, a, b);
+  CREATE INDEX t3a ON t3(x, a);
+  CREATE INDEX t3b ON t3(x, b);
+}
+do_test 10.2.2 {
+  for {set i 1} {$i < 100} {incr i} {
+    if {$i>90} { set a $i } else { set a NULL }
+    set b [expr $i % 5]
+    execsql "INSERT INTO t3 VALUES('xyz', $a, $b)"
+  }
+  execsql ANALYZE
+} {}
+do_eqp_test 10.2.3 {
+  SELECT * FROM t3 WHERE x = 'xyz' AND a IS NULL AND b = 2
+} {/t3 USING INDEX t3b/}
+do_eqp_test 10.2.4 {
+  SELECT * FROM t3 WHERE x = 'xyz' AND a IS NOT NULL AND b = 2
+} {/t3 USING INDEX t3a/}
+
+#-------------------------------------------------------------------------
+# Check that stat4 data is used correctly with non-default collation
+# sequences.
+#
+foreach {tn schema} {
+  1 {
+    CREATE TABLE t4(a COLLATE nocase, b);
+    CREATE INDEX t4a ON t4(a);
+    CREATE INDEX t4b ON t4(b);
+  }
+  2 {
+    CREATE TABLE t4(a, b);
+    CREATE INDEX t4a ON t4(a COLLATE nocase);
+    CREATE INDEX t4b ON t4(b);
+  }
+} {
+  drop_all_tables
+  do_test 11.$tn.1 { execsql $schema } {}
+
+  do_test 11.$tn.2 {
+    for {set i 0} {$i < 100} {incr i} {
+      if { ($i % 10)==0 } { set a ABC } else { set a DEF }
+      set b [expr $i % 5]
+        execsql { INSERT INTO t4 VALUES($a, $b) }
+    }
+    execsql ANALYZE
+  } {}
+
+  do_eqp_test 11.$tn.3 {
+    SELECT * FROM t4 WHERE a = 'def' AND b = 3;
+  } {/t4 USING INDEX t4b/}
+
+  if {$tn==1} {
+    set sql "SELECT * FROM t4 WHERE a = 'abc' AND b = 3;"
+    do_eqp_test 11.$tn.4 $sql {/t4 USING INDEX t4a/}
+  } else {
+
+    set sql "SELECT * FROM t4 WHERE a = 'abc' COLLATE nocase AND b = 3;"
+    do_eqp_test 11.$tn.5 $sql {/t4 USING INDEX t4a/}
+
+    set sql "SELECT * FROM t4 WHERE a COLLATE nocase = 'abc' AND b = 3;"
+    do_eqp_test 11.$tn.6 $sql {/t4 USING INDEX t4a/}
+  }
+}
+
+foreach {tn schema} {
+  1 {
+    CREATE TABLE t4(x, a COLLATE nocase, b);
+    CREATE INDEX t4a ON t4(x, a);
+    CREATE INDEX t4b ON t4(x, b);
+  }
+  2 {
+    CREATE TABLE t4(x, a, b);
+    CREATE INDEX t4a ON t4(x, a COLLATE nocase);
+    CREATE INDEX t4b ON t4(x, b);
+  }
+} {
+  drop_all_tables
+  do_test 12.$tn.1 { execsql $schema } {}
+
+  do_test 12.$tn.2 {
+    for {set i 0} {$i < 100} {incr i} {
+      if { ($i % 10)==0 } { set a ABC } else { set a DEF }
+      set b [expr $i % 5]
+        execsql { INSERT INTO t4 VALUES(X'abcdef', $a, $b) }
+    }
+    execsql ANALYZE
+  } {}
+
+  do_eqp_test 12.$tn.3 {
+    SELECT * FROM t4 WHERE x=X'abcdef' AND a = 'def' AND b = 3;
+  } {/t4 USING INDEX t4b/}
+
+  if {$tn==1} {
+    set sql "SELECT * FROM t4 WHERE x=X'abcdef' AND a = 'abc' AND b = 3;"
+    do_eqp_test 12.$tn.4 $sql {/t4 USING INDEX t4a/}
+  } else {
+    set sql {
+      SELECT * FROM t4 WHERE x=X'abcdef' AND a = 'abc' COLLATE nocase AND b = 3
+    }
+    do_eqp_test 12.$tn.5 $sql {/t4 USING INDEX t4a/}
+    set sql {
+      SELECT * FROM t4 WHERE x=X'abcdef' AND a COLLATE nocase = 'abc' AND b = 3
+    }
+    do_eqp_test 12.$tn.6 $sql {/t4 USING INDEX t4a/}
+  }
+}
+
+#-------------------------------------------------------------------------
+# Check that affinities are taken into account when using stat4 data to
+# estimate the number of rows scanned by a rowid constraint.
+#
+drop_all_tables
+do_test 13.1 {
+  execsql {
+    CREATE TABLE t1(a, b, c, d);
+    CREATE INDEX i1 ON t1(a);
+    CREATE INDEX i2 ON t1(b, c);
+  }
+  for {set i 0} {$i<100} {incr i} {
+    if {$i %2} {set a abc} else {set a def}
+    execsql { INSERT INTO t1(rowid, a, b, c) VALUES($i, $a, $i, $i) }
+  }
+  execsql ANALYZE
+} {}
+do_eqp_test 13.2.1 {
+  SELECT * FROM t1 WHERE a='abc' AND rowid<15 AND b<12
+} {/SEARCH t1 USING INDEX i1/}
+do_eqp_test 13.2.2 {
+  SELECT * FROM t1 WHERE a='abc' AND rowid<'15' AND b<12
+} {/SEARCH t1 USING INDEX i1/}
+do_eqp_test 13.3.1 {
+  SELECT * FROM t1 WHERE a='abc' AND rowid<100 AND b<12
+} {/SEARCH t1 USING INDEX i2/}
+do_eqp_test 13.3.2 {
+  SELECT * FROM t1 WHERE a='abc' AND rowid<'100' AND b<12
+} {/SEARCH t1 USING INDEX i2/}
+
+#-------------------------------------------------------------------------
+# Check also that affinities are taken into account when using stat4 data 
+# to estimate the number of rows scanned by any other constraint on a 
+# column other than the leftmost.
+#
+drop_all_tables
+do_test 14.1 {
+  execsql { CREATE TABLE t1(a, b INTEGER, c) }
+  for {set i 0} {$i<100} {incr i} {
+    set c [expr $i % 3]
+    execsql { INSERT INTO t1 VALUES('ott', $i, $c) }
+  }
+  execsql {
+    CREATE INDEX i1 ON t1(a, b);
+    CREATE INDEX i2 ON t1(c);
+    ANALYZE;
+  }
+} {}
+do_eqp_test 13.2.1 {
+  SELECT * FROM t1 WHERE a='ott' AND b<10 AND c=1
+} {/SEARCH t1 USING INDEX i1/}
+do_eqp_test 13.2.2 {
+  SELECT * FROM t1 WHERE a='ott' AND b<'10' AND c=1
+} {/SEARCH t1 USING INDEX i1/}
+
+#-------------------------------------------------------------------------
+# By default, 16 non-periodic samples are collected for the stat4 table.
+# The following tests attempt to verify that the most common keys are
+# being collected.
+#
+proc check_stat4 {tn} {
+  db eval ANALYZE
+  db eval {SELECT a, b, c, d FROM t1} {
+    incr k($a)
+    incr k([list $a $b])
+    incr k([list $a $b $c])
+    if { [info exists k([list $a $b $c $d])]==0 } { incr nRow }
+    incr k([list $a $b $c $d])
+  }
+
+  set L [list]
+  foreach key [array names k] {
+    lappend L [list $k($key) $key]
+  }
+
+  set nSample $nRow
+  if {$nSample>16} {set nSample 16}
+
+  set nThreshold [lindex [lsort -decr -integer -index 0 $L] [expr $nSample-1] 0]
+  foreach key [array names k] {
+    if {$k($key)>$nThreshold} {
+      set expect($key) 1
+    }
+    if {$k($key)==$nThreshold} {
+      set possible($key) 1
+    }
+  }
+
+
+  set nPossible [expr $nSample - [llength [array names expect]]]
+
+  #puts "EXPECT: [array names expect]"
+  #puts "POSSIBLE($nPossible/[array size possible]): [array names possible]"
+  #puts "HAVE: [db eval {SELECT test_decode(sample) FROM sqlite_stat4 WHERE idx='i1'}]"
+
+  db eval {SELECT test_decode(sample) AS s FROM sqlite_stat4 WHERE idx='i1'} {
+    set seen 0
+    for {set i 0} {$i<4} {incr i} {
+      unset -nocomplain expect([lrange $s 0 $i])
+      if {[info exists possible([lrange $s 0 $i])]} {
+        set seen 1
+        unset -nocomplain possible([lrange $s 0 $i])
+      }
+    }
+    if {$seen} {incr nPossible -1}
+  }
+  if {$nPossible<0} {set nPossible 0}
+
+  set res [list [llength [array names expect]] $nPossible]
+  uplevel [list do_test $tn [list set {} $res] {0 0}]
+}
+
+drop_all_tables
+do_test 14.1.1 {
+  execsql {
+    CREATE TABLE t1(a,b,c,d);
+    CREATE INDEX i1 ON t1(a,b,c,d);
+  }
+  for {set i 0} {$i < 160} {incr i} {
+    execsql { INSERT INTO t1 VALUES($i,$i,$i,$i) }
+    if {($i % 10)==0} { execsql { INSERT INTO t1 VALUES($i,$i,$i,$i) } }
+  }
+} {}
+check_stat4 14.1.2
+
+do_test 14.2.1 {
+  execsql { DELETE FROM t1 }
+  for {set i 0} {$i < 1600} {incr i} {
+    execsql { INSERT INTO t1 VALUES($i/10,$i/17,$i/27,$i/37) }
+  }
+} {}
+check_stat4 14.2.2
+
+do_test 14.3.1 {
+  for {set i 0} {$i < 10} {incr i} {
+    execsql { INSERT INTO t1 VALUES($i*50,$i*50,$i*50,$i*50) }
+    execsql { INSERT INTO t1 VALUES($i*50,$i*50,$i*50,$i*50) }
+    execsql { INSERT INTO t1 VALUES($i*50,$i*50,$i*50,$i*50) }
+    execsql { INSERT INTO t1 VALUES($i*50,$i*50,$i*50,$i*50) }
+    execsql { INSERT INTO t1 VALUES($i*50,$i*50,$i*50,$i*50) }
+    execsql { INSERT INTO t1 VALUES($i*50,$i*50,$i*50,$i*50) }
+    execsql { INSERT INTO t1 VALUES($i*50,$i*50,$i*50,$i*50) }
+    execsql { INSERT INTO t1 VALUES($i*50,$i*50,$i*50,$i*50) }
+    execsql { INSERT INTO t1 VALUES($i*50,$i*50,$i*50,$i*50) }
+    execsql { INSERT INTO t1 VALUES($i*50,$i*50,$i*50,$i*50) }
+  }
+} {}
+check_stat4 14.3.2
+
+do_test 14.4.1 {
+  execsql {DELETE FROM t1}
+  for {set i 1} {$i < 160} {incr i} {
+    set b [expr $i % 10]
+    if {$b==0 || $b==2} {set b 1}
+    execsql { INSERT INTO t1 VALUES($i/10,$b,$i,$i) }
+  }
+} {}
+check_stat4 14.4.2
+db func lrange lrange
+db func lindex lindex
+do_execsql_test 14.4.3 {
+  SELECT lrange(test_decode(sample), 0, 1) AS s FROM sqlite_stat4
+  WHERE lindex(s, 1)=='1' ORDER BY rowid
+} {
+  {0 1} {1 1} {2 1} {3 1} 
+  {4 1} {5 1} {6 1} {7 1} 
+  {8 1} {9 1} {10 1} {11 1} 
+  {12 1} {13 1} {14 1} {15 1}
+}
+
+#-------------------------------------------------------------------------
+# Test that nothing untoward happens if the stat4 table contains entries
+# for indexes that do not exist. Or NULL values in the idx column.
+# Or NULL values in any of the other columns.
+#
+drop_all_tables
+do_execsql_test 15.1 {
+  CREATE TABLE x1(a, b, UNIQUE(a, b));
+  INSERT INTO x1 VALUES(1, 2);
+  INSERT INTO x1 VALUES(3, 4);
+  INSERT INTO x1 VALUES(5, 6);
+  ANALYZE;
+  INSERT INTO sqlite_stat4 VALUES(NULL, NULL, NULL, NULL, NULL, NULL);
+}
+db close
+sqlite3 db test.db
+do_execsql_test 15.2 { SELECT * FROM x1 } {1 2 3 4 5 6}
+
+do_execsql_test 15.3 {
+  INSERT INTO sqlite_stat4 VALUES(42, 42, 42, 42, 42, 42);
+}
+db close
+sqlite3 db test.db
+do_execsql_test 15.4 { SELECT * FROM x1 } {1 2 3 4 5 6}
+
+do_execsql_test 15.5 {
+  UPDATE sqlite_stat1 SET stat = NULL;
+}
+db close
+sqlite3 db test.db
+do_execsql_test 15.6 { SELECT * FROM x1 } {1 2 3 4 5 6}
+
+do_execsql_test 15.7 {
+  ANALYZE;
+  UPDATE sqlite_stat1 SET tbl = 'no such tbl';
+}
+db close
+sqlite3 db test.db
+do_execsql_test 15.8 { SELECT * FROM x1 } {1 2 3 4 5 6}
+
+do_execsql_test 15.9 {
+  ANALYZE;
+  UPDATE sqlite_stat4 SET neq = NULL, nlt=NULL, ndlt=NULL;
+}
+db close
+sqlite3 db test.db
+do_execsql_test 15.10 { SELECT * FROM x1 } {1 2 3 4 5 6}
+
+# This is just for coverage....
+do_execsql_test 15.11 {
+  ANALYZE;
+  UPDATE sqlite_stat1 SET stat = stat || ' unordered';
+}
+db close
+sqlite3 db test.db
+do_execsql_test 15.12 { SELECT * FROM x1 } {1 2 3 4 5 6}
+
+#-------------------------------------------------------------------------
+# Test that allocations used for sqlite_stat4 samples are included in
+# the quantity returned by SQLITE_DBSTATUS_SCHEMA_USED.
+#
+set one [string repeat x 1000]
+set two [string repeat x 2000]
+do_test 16.1 {
+  reset_db
+  execsql {
+    CREATE TABLE t1(a, UNIQUE(a));
+    INSERT INTO t1 VALUES($one);
+    ANALYZE;
+  }
+  set nByte [lindex [sqlite3_db_status db SCHEMA_USED 0] 1]
+
+  reset_db
+  execsql {
+    CREATE TABLE t1(a, UNIQUE(a));
+    INSERT INTO t1 VALUES($two);
+    ANALYZE;
+  }
+  set nByte2 [lindex [sqlite3_db_status db SCHEMA_USED 0] 1]
+  puts -nonewline " (nByte=$nByte nByte2=$nByte2)"
+
+  expr {$nByte2 > $nByte+900 && $nByte2 < $nByte+1100}
+} {1}
+
+#-------------------------------------------------------------------------
+# Test that stat4 data may be used with partial indexes.
+#
+do_test 17.1 {
+  reset_db
+  execsql {
+    CREATE TABLE t1(a, b, c, d);
+    CREATE INDEX i1 ON t1(a, b) WHERE d IS NOT NULL;
+    INSERT INTO t1 VALUES(-1, -1, -1, NULL);
+    INSERT INTO t1 SELECT 2*a,2*b,2*c,d FROM t1;
+    INSERT INTO t1 SELECT 2*a,2*b,2*c,d FROM t1;
+    INSERT INTO t1 SELECT 2*a,2*b,2*c,d FROM t1;
+    INSERT INTO t1 SELECT 2*a,2*b,2*c,d FROM t1;
+    INSERT INTO t1 SELECT 2*a,2*b,2*c,d FROM t1;
+    INSERT INTO t1 SELECT 2*a,2*b,2*c,d FROM t1;
+  }
+
+  for {set i 0} {$i < 32} {incr i} {
+    if {$i<8} {set b 0} else { set b $i }
+    execsql { INSERT INTO t1 VALUES($i%2, $b, $i/2, 'abc') }
+  }
+  execsql {ANALYZE main.t1}
+} {}
+
+do_catchsql_test 17.1.2 {
+  ANALYZE temp.t1;
+} {1 {no such table: temp.t1}}
+
+do_eqp_test 17.2 {
+  SELECT * FROM t1 WHERE d IS NOT NULL AND a=0 AND b=10 AND c=10;
+} {/USING INDEX i1/}
+do_eqp_test 17.3 {
+  SELECT * FROM t1 WHERE d IS NOT NULL AND a=0 AND b=0 AND c=10;
+} {/USING INDEX i1/}
+
+do_execsql_test 17.4 {
+  CREATE INDEX i2 ON t1(c, d);
+  ANALYZE main.i2;
+}
+do_eqp_test 17.5 {
+  SELECT * FROM t1 WHERE d IS NOT NULL AND a=0 AND b=10 AND c=10;
+} {/USING INDEX i1/}
+do_eqp_test 17.6 {
+  SELECT * FROM t1 WHERE d IS NOT NULL AND a=0 AND b=0 AND c=10;
+} {/USING INDEX i2/}
+
+#-------------------------------------------------------------------------
+#
+do_test 18.1 {
+  reset_db
+  execsql {
+    CREATE TABLE t1(a, b);
+    CREATE INDEX i1 ON t1(a, b);
+  }
+  for {set i 0} {$i < 9} {incr i} {
+    execsql {
+      INSERT INTO t1 VALUES($i, 0);
+      INSERT INTO t1 VALUES($i, 0);
+      INSERT INTO t1 VALUES($i, 0);
+      INSERT INTO t1 VALUES($i, 0);
+      INSERT INTO t1 VALUES($i, 0);
+      INSERT INTO t1 VALUES($i, 0);
+      INSERT INTO t1 VALUES($i, 0);
+      INSERT INTO t1 VALUES($i, 0);
+      INSERT INTO t1 VALUES($i, 0);
+      INSERT INTO t1 VALUES($i, 0);
+      INSERT INTO t1 VALUES($i, 0);
+      INSERT INTO t1 VALUES($i, 0);
+      INSERT INTO t1 VALUES($i, 0);
+      INSERT INTO t1 VALUES($i, 0);
+      INSERT INTO t1 VALUES($i, 0);
+    }
+  }
+  execsql ANALYZE
+  execsql { SELECT count(*) FROM sqlite_stat4 }
+} {9}
+
+#-------------------------------------------------------------------------
+# For coverage.
+#
+ifcapable view {
+  do_test 19.1 {
+    reset_db 
+    execsql {
+      CREATE TABLE t1(x, y);
+      CREATE INDEX i1 ON t1(x, y);
+      CREATE VIEW v1 AS SELECT * FROM t1;
+      ANALYZE;
+    }
+  } {}
+}
+ifcapable auth {
+  proc authproc {op args} {
+    if {$op == "SQLITE_ANALYZE"} { return "SQLITE_DENY" }
+    return "SQLITE_OK"
+  }
+  do_test 19.2 {
+    reset_db 
+    db auth authproc
+    execsql {
+      CREATE TABLE t1(x, y);
+      CREATE VIEW v1 AS SELECT * FROM t1;
+    }
+    catchsql ANALYZE
+  } {1 {not authorized}}
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+proc r {args} { expr rand() }
+db func r r
+db func lrange lrange
+do_test 20.1 {
+  execsql {
+    CREATE TABLE t1(a,b,c,d);
+    CREATE INDEX i1 ON t1(a,b,c,d);
+  }
+  for {set i 0} {$i < 16} {incr i} {
+    execsql {
+      INSERT INTO t1 VALUES($i, r(), r(), r());
+      INSERT INTO t1 VALUES($i, $i,  r(), r());
+      INSERT INTO t1 VALUES($i, $i,  $i,  r());
+      INSERT INTO t1 VALUES($i, $i,  $i,  $i);
+      INSERT INTO t1 VALUES($i, $i,  $i,  $i);
+      INSERT INTO t1 VALUES($i, $i,  $i,  r());
+      INSERT INTO t1 VALUES($i, $i,  r(), r());
+      INSERT INTO t1 VALUES($i, r(), r(), r());
+    }
+  }
+} {}
+do_execsql_test 20.2 { ANALYZE }
+for {set i 0} {$i<16} {incr i} {
+    set val "$i $i $i $i"
+    do_execsql_test 20.3.$i {
+      SELECT count(*) FROM sqlite_stat4 
+      WHERE lrange(test_decode(sample), 0, 3)=$val
+    } {1}
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+
+do_execsql_test 21.0 {
+  CREATE TABLE t2(a, b);
+  CREATE INDEX i2 ON t2(a);
+}
+
+do_test 21.1 {
+  for {set i 1} {$i < 100} {incr i} {
+    execsql { 
+      INSERT INTO t2 VALUES(CASE WHEN $i < 80 THEN 'one' ELSE 'two' END, $i) 
+    }
+  }
+  execsql ANALYZE
+} {}
+
+# Condition (a='one') matches 80% of the table. (rowid<10) reduces this to
+# 10%, but (rowid<50) only reduces it to 50%. So in the first case below
+# the index is used. In the second, it is not. 
+#
+do_eqp_test 21.2 {
+  SELECT * FROM t2 WHERE a='one' AND rowid < 10
+} {/*USING INDEX i2 (a=? AND rowid<?)*/}
+do_eqp_test 21.3 {
+  SELECT * FROM t2 WHERE a='one' AND rowid < 50
+} {/*USING INTEGER PRIMARY KEY*/}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 22.0 {
+  CREATE TABLE t3(a, b, c, d, PRIMARY KEY(a, b)) WITHOUT ROWID;
+  SELECT * FROM t3;
+} {}
+do_execsql_test 22.1 {
+  WITH r(x) AS (
+    SELECT 1
+    UNION ALL
+    SELECT x+1 FROM r WHERE x<=100
+  )
+
+  INSERT INTO t3 SELECT
+    CASE WHEN (x>45 AND x<96) THEN 'B' ELSE 'A' END,  /* Column "a" */
+    x,                                                /* Column "b" */
+    CASE WHEN (x<51) THEN 'one' ELSE 'two' END,       /* Column "c" */
+    x                                                 /* Column "d" */
+  FROM r;
+
+  CREATE INDEX i3 ON t3(c);
+  CREATE INDEX i4 ON t3(d);
+  ANALYZE;
+}
+
+# Expression (c='one' AND a='B') matches 5 table rows. But (c='one' AND a=A')
+# matches 45. Expression (d<?) matches 20. Neither index is a covering index.
+#
+# Therefore, with stat4 data, SQLite prefers (c='one' AND a='B') over (d<20),
+# and (d<20) over (c='one' AND a='A').
+foreach {tn where res} {
+  1 "c='one' AND a='B' AND d < 20"   {/*INDEX i3 (c=? AND a=?)*/}
+  2 "c='one' AND a='A' AND d < 20"   {/*INDEX i4 (d<?)*/}
+} {
+  do_eqp_test 22.2.$tn "SELECT * FROM t3 WHERE $where" $res
+}
+
+proc int_to_char {i} {
+  set ret ""
+  set char [list a b c d e f g h i j]
+  foreach {div} {1000 100 10 1} {
+    append ret [lindex $char [expr ($i / $div) % 10]]
+  }
+  set ret
+}
+db func int_to_char int_to_char
+
+do_execsql_test 23.0 {
+  CREATE TABLE t4(
+    a COLLATE nocase, b, c, 
+    d, e, f, 
+    PRIMARY KEY(c, b, a)
+  ) WITHOUT ROWID;
+  CREATE INDEX i41 ON t4(e);
+  CREATE INDEX i42 ON t4(f);
+
+  WITH data(a, b, c, d, e, f) AS (
+    SELECT int_to_char(0), 'xyz', 'zyx', '*', 0, 0
+    UNION ALL
+    SELECT 
+      int_to_char(f+1), b, c, d, (e+1) % 2, f+1
+    FROM data WHERE f<1024
+  )
+  INSERT INTO t4 SELECT a, b, c, d, e, f FROM data;
+  ANALYZE;
+} {}
+
+do_eqp_test 23.1 {
+  SELECT * FROM t4 WHERE 
+    (e=1 AND b='xyz' AND c='zyx' AND a<'AEA') AND f<300
+  -- Formerly used index i41.  But i41 is not a covering index whereas
+  -- the PRIMARY KEY is a covering index, and so as of 2017-10-15, the
+  -- PRIMARY KEY is preferred.
+} {SEARCH t4 USING PRIMARY KEY (c=? AND b=? AND a<?)}
+do_eqp_test 23.2 {
+  SELECT * FROM t4 WHERE 
+    (e=1 AND b='xyz' AND c='zyx' AND a<'JJJ') AND f<300
+} {SEARCH t4 USING INDEX i42 (f<?)}
+
+do_execsql_test 24.0 {
+  CREATE TABLE t5(c, d, b, e, a, PRIMARY KEY(a, b, c)) WITHOUT ROWID;
+  WITH data(a, b, c, d, e) AS (
+    SELECT 'z', 'y', 0, 0, 0
+    UNION ALL
+    SELECT 
+      a, CASE WHEN b='y' THEN 'n' ELSE 'y' END, c+1, e/250, e+1 
+    FROM data
+    WHERE e<1000
+  )
+  INSERT INTO t5(a, b, c, d, e) SELECT * FROM data;
+  CREATE INDEX t5d ON t5(d);
+  CREATE INDEX t5e ON t5(e);
+  ANALYZE;
+}
+
+foreach {tn where eqp} {
+  1 "d=0 AND a='z' AND b='n' AND e<200" {/*t5d (d=? AND a=? AND b=?)*/}
+  2 "d=0 AND a='z' AND b='n' AND e<100" {/*t5e (e<?)*/}
+
+  3 "d=0 AND e<300"                     {/*t5d (d=?)*/}
+  4 "d=0 AND e<200"                     {/*t5e (e<?)*/}
+} {
+  do_eqp_test 24.$tn "SeLeCt * FROM t5 WHERE $where" $eqp
+}
+
+#-------------------------------------------------------------------------
+# Test that if stat4 data is available but cannot be used because the
+# rhs of a range constraint is a complex expression, the default estimates
+# are used instead.
+ifcapable stat4&&cte {
+  do_execsql_test 25.1 {
+    CREATE TABLE t6(a, b);
+    WITH ints(i,j) AS (
+      SELECT 1,1 UNION ALL SELECT i+1,j+1 FROM ints WHERE i<100
+    ) INSERT INTO t6 SELECT * FROM ints;
+    CREATE INDEX aa ON t6(a);
+    CREATE INDEX bb ON t6(b);
+    ANALYZE;
+  }
+
+  # Term (b<?) is estimated at 25%. Better than (a<30) but not as
+  # good as (a<20).
+  do_eqp_test 25.2.1 { SELECT * FROM t6 WHERE a<30 AND b<? } \
+    {SEARCH t6 USING INDEX bb (b<?)}
+  do_eqp_test 25.2.2 { SELECT * FROM t6 WHERE a<20 AND b<? } \
+    {SEARCH t6 USING INDEX aa (a<?)}
+
+  # Term (b BETWEEN ? AND ?) is estimated at 1/64.
+  do_eqp_test 25.3.1 { 
+    SELECT * FROM t6 WHERE a BETWEEN 5 AND 10 AND b BETWEEN ? AND ? 
+  } {SEARCH t6 USING INDEX bb (b>? AND b<?)}
+  
+  # Term (b BETWEEN ? AND 60) is estimated to return roughly 15 rows -
+  # 60 from (b<=60) multiplied by 0.25 for the b>=? term. Better than
+  # (a<20) but not as good as (a<10).
+  do_eqp_test 25.4.1 { 
+    SELECT * FROM t6 WHERE a < 10 AND (b BETWEEN ? AND 60)
+  } {SEARCH t6 USING INDEX aa (a<?)}
+
+  do_eqp_test 25.4.2 { 
+    SELECT * FROM t6 WHERE a < 20 AND (b BETWEEN ? AND 60)
+  } {SEARCH t6 USING INDEX bb (b>? AND b<?)}
+}
+
+#-------------------------------------------------------------------------
+# Check that a problem in they way stat4 data is used has been 
+# resolved (see below).
+#
+reset_db
+do_test 26.1.1 {
+  db transaction {
+    execsql { 
+      CREATE TABLE t1(x, y, z);
+      CREATE INDEX t1xy ON t1(x, y);
+      CREATE INDEX t1z ON t1(z);
+    }
+    for {set i 0} {$i < 10000} {incr i} {
+      execsql { INSERT INTO t1(x, y) VALUES($i, $i) }
+    }
+    for {set i 0} {$i < 10} {incr i} {
+      execsql {
+        WITH cnt(x) AS (SELECT 1 UNION ALL SELECT x+1 FROM cnt WHERE x<100)
+        INSERT INTO t1(x, y) SELECT 10000+$i, x FROM cnt;
+        INSERT INTO t1(x, y) SELECT 10000+$i, 100;
+      }
+    }
+    execsql {
+      UPDATE t1 SET z = rowid / 20;
+      ANALYZE;
+    }
+  }
+} {}
+
+do_execsql_test 26.1.2 {
+  SELECT count(*) FROM t1 WHERE x = 10000 AND y < 50;
+} {49}
+do_execsql_test 26.1.3 {
+  SELECT count(*) FROM t1 WHERE z = 444;
+} {20}
+
+# The analyzer knows that any (z=?) expression matches 20 rows. So it
+# will use index "t1z" if the estimate of hits for (x=10000 AND y<50)
+# is greater than 20 rows.
+#
+# And it should be. The analyzer has a stat4 sample as follows:
+#
+#   sample=(x=10000, y=100) nLt=(10000 10099)
+#
+# There should be no other samples that start with (x=10000). So it knows 
+# that (x=10000 AND y<50) must match somewhere between 0 and 99 rows, but
+# no more than that. Guessing less than 20 is therefore unreasonable.
+#
+# At one point though, due to a problem in whereKeyStats(), the planner was
+# estimating that (x=10000 AND y<50) would match only 2 rows.
+#
+do_eqp_test 26.1.4 {
+  SELECT * FROM t1 WHERE x = 10000 AND y < 50 AND z = 444;
+} {SEARCH t1 USING INDEX t1z (z=?)}
+
+
+# This test - 26.2.* - tests that another manifestation of the same problem
+# is no longer present in the library. Assuming:
+# 
+#   CREATE INDEX t1xy ON t1(x, y)
+#
+# and that have samples for index t1xy as follows:
+#
+#
+#   sample=('A', 70)        nEq=(100, 2)        nLt=(900, 970)
+#   sample=('B', 70)        nEq=(100, 2)        nLt=(1000, 1070)    
+#
+# the planner should estimate that (x = 'B' AND y > 25) matches 76 rows
+# (70 * 2/3 + 30). Before, due to the problem, the planner was estimating 
+# that this matched 100 rows.
+# 
+reset_db
+do_execsql_test 26.2.1 {
+  BEGIN;
+    CREATE TABLE t1(x, y, z);
+    CREATE INDEX i1 ON t1(x, y);
+    CREATE INDEX i2 ON t1(z);
+  
+    WITH 
+    cnt(y) AS (SELECT 0 UNION ALL SELECT y+1 FROM cnt WHERE y<99),
+    letters(x) AS (
+      SELECT 'A' UNION SELECT 'B' UNION SELECT 'C' UNION SELECT 'D'
+    )
+    INSERT INTO t1(x, y) SELECT x, y FROM letters, cnt;
+  
+    WITH
+    letters(x) AS (
+      SELECT 'A' UNION SELECT 'B' UNION SELECT 'C' UNION SELECT 'D'
+    )
+    INSERT INTO t1(x, y) SELECT x, 70 FROM letters;
+  
+    WITH
+    cnt(i) AS (SELECT 0 UNION ALL SELECT i+1 FROM cnt WHERE i<9999)
+    INSERT INTO t1(x, y) SELECT i, i FROM cnt;
+  
+    UPDATE t1 SET z = (rowid / 95);
+    ANALYZE;
+  COMMIT;
+}
+
+do_eqp_test 26.2.2 {
+  SELECT * FROM t1 WHERE x='B' AND y>25 AND z=?;
+} {SEARCH t1 USING INDEX i1 (x=? AND y>?)}
+
+
+finish_test
diff --git a/test/analyzeC.test b/test/analyzeC.test
new file mode 100644
index 0000000000000000000000000000000000000000..2f43d57a1e500794c460a216fe6b6a3c43f0c6de
--- /dev/null
+++ b/test/analyzeC.test
@@ -0,0 +1,181 @@
+# 2014-07-22
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains automated tests used to verify that the text terms
+# at the end of sqlite_stat1.stat are processed correctly.
+#
+#  (1) "unordered" means that the index cannot be used for ORDER BY
+#      or for range queries
+#
+#  (2) "sz=NNN" sets the relative size of the index entries
+#
+#  (3) All other fields are silently ignored
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix analyzeC
+
+# Baseline case.  Range queries work OK.  Indexes can be used for
+# ORDER BY.
+#
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a,b,c);
+  INSERT INTO t1(a,b,c)
+    VALUES(1,2,3),(7,8,9),(4,5,6),(10,11,12),(4,8,12),(1,11,111);
+  CREATE INDEX t1a ON t1(a);
+  CREATE INDEX t1b ON t1(b);
+  ANALYZE;
+  DELETE FROM sqlite_stat1;
+  INSERT INTO sqlite_stat1(tbl,idx,stat)
+    VALUES('t1','t1a','12345 2'),('t1','t1b','12345 4');
+  ANALYZE sqlite_master;
+  SELECT *, '#' FROM t1 WHERE a BETWEEN 3 AND 8 ORDER BY c;
+} {4 5 6 # 7 8 9 # 4 8 12 #}
+do_execsql_test 1.1 {
+  EXPLAIN QUERY PLAN
+  SELECT *, '#' FROM t1 WHERE a BETWEEN 3 AND 8 ORDER BY c;
+} {/.* USING INDEX t1a .a>. AND a<...*/}
+do_execsql_test 1.2 {
+  SELECT c FROM t1 ORDER BY a;
+} {3 111 6 12 9 12}
+do_execsql_test 1.3 {
+  EXPLAIN QUERY PLAN
+  SELECT c FROM t1 ORDER BY a;
+} {/.*SCAN t1 USING INDEX t1a.*/}
+do_execsql_test 1.3x {
+  EXPLAIN QUERY PLAN
+  SELECT c FROM t1 ORDER BY a;
+} {~/.*B-TREE FOR ORDER BY.*/}
+
+# Now mark the t1a index as "unordered".  Range queries and ORDER BY no
+# longer use the index, but equality queries do.
+#
+do_execsql_test 2.0 {
+  UPDATE sqlite_stat1 SET stat='12345 2 unordered' WHERE idx='t1a';
+  ANALYZE sqlite_master;
+  SELECT *, '#' FROM t1 WHERE a BETWEEN 3 AND 8 ORDER BY c;
+} {4 5 6 # 7 8 9 # 4 8 12 #}
+do_execsql_test 2.1 {
+  EXPLAIN QUERY PLAN
+  SELECT *, '#' FROM t1 WHERE a BETWEEN 3 AND 8 ORDER BY c;
+} {~/.*USING INDEX.*/}
+do_execsql_test 2.2 {
+  SELECT c FROM t1 ORDER BY a;
+} {3 111 6 12 9 12}
+do_execsql_test 2.3 {
+  EXPLAIN QUERY PLAN
+  SELECT c FROM t1 ORDER BY a;
+} {~/.*USING INDEX.*/}
+do_execsql_test 2.3x {
+  EXPLAIN QUERY PLAN
+  SELECT c FROM t1 ORDER BY a;
+} {/.*B-TREE FOR ORDER BY.*/}
+
+# Ignore extraneous text parameters in the sqlite_stat1.stat field.
+#
+do_execsql_test 3.0 {
+  UPDATE sqlite_stat1 SET stat='12345 2 whatever=5 unordered xyzzy=11'
+   WHERE idx='t1a';
+  ANALYZE sqlite_master;
+  SELECT *, '#' FROM t1 WHERE a BETWEEN 3 AND 8 ORDER BY c;
+} {4 5 6 # 7 8 9 # 4 8 12 #}
+do_execsql_test 3.1 {
+  EXPLAIN QUERY PLAN
+  SELECT *, '#' FROM t1 WHERE a BETWEEN 3 AND 8 ORDER BY c;
+} {~/.*USING INDEX.*/}
+do_execsql_test 3.2 {
+  SELECT c FROM t1 ORDER BY a;
+} {3 111 6 12 9 12}
+do_execsql_test 3.3 {
+  EXPLAIN QUERY PLAN
+  SELECT c FROM t1 ORDER BY a;
+} {~/.*USING INDEX.*/}
+do_execsql_test 3.3x {
+  EXPLAIN QUERY PLAN
+  SELECT c FROM t1 ORDER BY a;
+} {/.*B-TREE FOR ORDER BY.*/}
+
+# The sz=NNN parameter determines which index to scan
+#
+do_execsql_test 4.0 {
+  DROP INDEX t1a;
+  CREATE INDEX t1ab ON t1(a,b);
+  CREATE INDEX t1ca ON t1(c,a);
+  DELETE FROM sqlite_stat1;
+  INSERT INTO sqlite_stat1(tbl,idx,stat)
+    VALUES('t1','t1ab','12345 3 2 sz=10'),('t1','t1ca','12345 3 2 sz=20');
+  ANALYZE sqlite_master;
+  SELECT count(a) FROM t1;
+} {6}
+do_execsql_test 4.1 {
+  EXPLAIN QUERY PLAN
+  SELECT count(a) FROM t1;
+} {/.*INDEX t1ab.*/}
+do_execsql_test 4.2 {
+  DELETE FROM sqlite_stat1;
+  INSERT INTO sqlite_stat1(tbl,idx,stat)
+    VALUES('t1','t1ab','12345 3 2 sz=20'),('t1','t1ca','12345 3 2 sz=10');
+  ANALYZE sqlite_master;
+  SELECT count(a) FROM t1;
+} {6}
+do_execsql_test 4.3 {
+  EXPLAIN QUERY PLAN
+  SELECT count(a) FROM t1;
+} {/.*INDEX t1ca.*/}
+
+# 2019-08-15.
+# Ticket https://www.sqlite.org/src/tktview/e4598ecbdd18bd82945f602901
+# The sz=N parameter in the sqlite_stat1 table needs to have a value of
+# 2 or more to avoid a division by zero in the query planner.
+#
+do_execsql_test 4.4 {
+  DROP TABLE IF EXISTS t44;
+  CREATE TABLE t44(a PRIMARY KEY);
+  INSERT INTO sqlite_stat1 VALUES('t44',null,'sz=0');
+  ANALYZE sqlite_master;
+  SELECT 0 FROM t44 WHERE a IN(1,2,3);
+} {}
+
+
+
+# The sz=NNN parameter works even if there is other extraneous text
+# in the sqlite_stat1.stat column.
+#
+do_execsql_test 5.0 {
+  DELETE FROM sqlite_stat1;
+  INSERT INTO sqlite_stat1(tbl,idx,stat)
+    VALUES('t1','t1ab','12345 3 2 x=5 sz=10 y=10'),
+          ('t1','t1ca','12345 3 2 whatever sz=20 junk');
+  ANALYZE sqlite_master;
+  SELECT count(a) FROM t1;
+} {6}
+do_execsql_test 5.1 {
+  EXPLAIN QUERY PLAN
+  SELECT count(a) FROM t1;
+} {/.*INDEX t1ab.*/}
+do_execsql_test 5.2 {
+  DELETE FROM sqlite_stat1;
+  INSERT INTO sqlite_stat1(tbl,idx,stat)
+    VALUES('t1','t1ca','12345 3 2 x=5 sz=10 y=10'),
+          ('t1','t1ab','12345 3 2 whatever sz=20 junk');
+  ANALYZE sqlite_master;
+  SELECT count(a) FROM t1;
+} {6}
+do_execsql_test 5.3 {
+  EXPLAIN QUERY PLAN
+  SELECT count(a) FROM t1;
+} {/.*INDEX t1ca.*/}
+
+
+
+
+finish_test
diff --git a/test/analyzeD.test b/test/analyzeD.test
new file mode 100644
index 0000000000000000000000000000000000000000..7a51785a1ca68257c46519e2d3be7bf872afa2f0
--- /dev/null
+++ b/test/analyzeD.test
@@ -0,0 +1,107 @@
+# 2014-10-04
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+# This file implements tests for the ANALYZE command.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix analyzeD
+
+ifcapable {!stat4} {
+  finish_test
+  return
+}
+
+
+# Set up a table with the following properties:
+#
+#    * Contains 1000 rows.
+#    * Column a contains even integers between 0 and 18, inclusive (so that
+#      a=? for any such integer matches 100 rows).
+#    * Column b contains integers between 0 and 9, inclusive.
+#    * Column c contains integers between 0 and 199, inclusive (so that
+#      for any such integer, c=? matches 5 rows).
+#    * Then add 7 rows with a new value for "a" - 3001. The stat4 table will
+#      not contain any samples with a=3001.
+#
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b, c);
+}
+do_test 1.1 {
+  for {set i 1} {$i < 1000} {incr i} {
+    set c [expr $i % 200]
+    execsql { INSERT INTO t1(a, b, c) VALUES( 2*($i/100), $i%10, $c ) }
+  }
+
+  execsql {
+    INSERT INTO t1 VALUES(3001, 3001, 3001);
+    INSERT INTO t1 VALUES(3001, 3001, 3002);
+    INSERT INTO t1 VALUES(3001, 3001, 3003);
+    INSERT INTO t1 VALUES(3001, 3001, 3004);
+    INSERT INTO t1 VALUES(3001, 3001, 3005);
+    INSERT INTO t1 VALUES(3001, 3001, 3006);
+    INSERT INTO t1 VALUES(3001, 3001, 3007);
+
+    CREATE INDEX t1_ab ON t1(a, b);
+    CREATE INDEX t1_c ON t1(c);
+
+    ANALYZE;
+  }
+} {}
+
+# With full ANALYZE data, SQLite sees that c=150 (5 rows) is better than
+# a=3001 (7 rows).
+#
+do_eqp_test 1.2 {
+  SELECT * FROM t1 WHERE a=3001 AND c=150;
+} {SEARCH t1 USING INDEX t1_c (c=?)}
+
+do_test 1.3 {
+  execsql { DELETE FROM sqlite_stat1 }
+  db close
+  sqlite3 db test.db
+} {}
+
+# Without stat1, because 3001 is larger than all samples in the stat4
+# table, SQLite thinks that a=3001 matches just 1 row. So it (incorrectly)
+# chooses it over the c=150 index (5 rows). Even with stat1 data, things
+# worked this way before commit [e6f7f97dbc].
+#
+do_eqp_test 1.4 {
+  SELECT * FROM t1 WHERE a=3001 AND c=150;
+} {SEARCH t1 USING INDEX t1_ab (a=?)}
+
+do_test 1.5 {
+  execsql { 
+    UPDATE t1 SET a=13 WHERE a = 3001;
+    ANALYZE;
+  }
+} {}
+
+do_eqp_test 1.6 {
+  SELECT * FROM t1 WHERE a=13 AND c=150;
+} {SEARCH t1 USING INDEX t1_c (c=?)}
+
+do_test 1.7 {
+  execsql { DELETE FROM sqlite_stat1 }
+  db close
+  sqlite3 db test.db
+} {}
+
+# Same test as 1.4, except this time the 7 rows that match the a=? condition 
+# do not feature larger values than all rows in the stat4 table. So SQLite
+# gets this right, even without stat1 data.
+do_eqp_test 1.8 {
+  SELECT * FROM t1 WHERE a=13 AND c=150;
+} {SEARCH t1 USING INDEX t1_c (c=?)}
+
+finish_test
diff --git a/test/analyzeE.test b/test/analyzeE.test
new file mode 100644
index 0000000000000000000000000000000000000000..2547daa1c8b20d1a069d0babf2f999fa58b211a6
--- /dev/null
+++ b/test/analyzeE.test
@@ -0,0 +1,294 @@
+# 2014-10-08
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements tests for using STAT4 information
+# on a descending index in a range query.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix analyzeE
+
+ifcapable {!stat4} {
+  finish_test
+  return
+}
+
+# Verify that range queries on an ASCENDING index will use the
+# index only if the range covers only a small fraction of the
+# entries.
+#
+do_execsql_test analyzeE-1.0 {
+  CREATE TABLE t1(a,b);
+  WITH RECURSIVE
+    cnt(x) AS (VALUES(1000) UNION ALL SELECT x+1 FROM cnt WHERE x<2000)
+  INSERT INTO t1(a,b) SELECT x, x FROM cnt;
+  CREATE INDEX t1a ON t1(a);
+  ANALYZE;
+} {}
+do_execsql_test analyzeE-1.1 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a BETWEEN 500 AND 2500;
+} {/SCAN t1/}
+do_execsql_test analyzeE-1.2 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a BETWEEN 2900 AND 3000;
+} {/SEARCH t1 USING INDEX t1a/}
+do_execsql_test analyzeE-1.3 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a BETWEEN 1700 AND 1750;
+} {/SEARCH t1 USING INDEX t1a/}
+do_execsql_test analyzeE-1.4 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a BETWEEN 1 AND 500
+} {/SEARCH t1 USING INDEX t1a/}
+do_execsql_test analyzeE-1.5 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a BETWEEN 3000 AND 3000000
+} {/SEARCH t1 USING INDEX t1a/}
+do_execsql_test analyzeE-1.6 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a<500
+} {/SEARCH t1 USING INDEX t1a/}
+do_execsql_test analyzeE-1.7 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a>2500
+} {/SEARCH t1 USING INDEX t1a/}
+do_execsql_test analyzeE-1.8 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a>1900
+} {/SEARCH t1 USING INDEX t1a/}
+do_execsql_test analyzeE-1.9 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a>1100
+} {/SCAN t1/}
+do_execsql_test analyzeE-1.10 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a<1100
+} {/SEARCH t1 USING INDEX t1a/}
+do_execsql_test analyzeE-1.11 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a<1900
+} {/SCAN t1/}
+
+# Verify that everything works the same on a DESCENDING index.
+#
+do_execsql_test analyzeE-2.0 {
+  DROP INDEX t1a;
+  CREATE INDEX t1a ON t1(a DESC);
+  ANALYZE;
+} {}
+do_execsql_test analyzeE-2.1 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a BETWEEN 500 AND 2500;
+} {/SCAN t1/}
+do_execsql_test analyzeE-2.2 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a BETWEEN 2900 AND 3000;
+} {/SEARCH t1 USING INDEX t1a/}
+do_execsql_test analyzeE-2.3 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a BETWEEN 1700 AND 1750;
+} {/SEARCH t1 USING INDEX t1a/}
+do_execsql_test analyzeE-2.4 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a BETWEEN 1 AND 500
+} {/SEARCH t1 USING INDEX t1a/}
+do_execsql_test analyzeE-2.5 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a BETWEEN 3000 AND 3000000
+} {/SEARCH t1 USING INDEX t1a/}
+do_execsql_test analyzeE-2.6 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a<500
+} {/SEARCH t1 USING INDEX t1a/}
+do_execsql_test analyzeE-2.7 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a>2500
+} {/SEARCH t1 USING INDEX t1a/}
+do_execsql_test analyzeE-2.8 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a>1900
+} {/SEARCH t1 USING INDEX t1a/}
+do_execsql_test analyzeE-2.9 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a>1100
+} {/SCAN t1/}
+do_execsql_test analyzeE-2.10 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a<1100
+} {/SEARCH t1 USING INDEX t1a/}
+do_execsql_test analyzeE-2.11 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a<1900
+} {/SCAN t1/}
+
+# Now do a range query on the second term of an ASCENDING index
+# where the first term is constrained by equality.
+#
+do_execsql_test analyzeE-3.0 {
+  DROP TABLE t1;
+  CREATE TABLE t1(a,b,c);
+  WITH RECURSIVE
+    cnt(x) AS (VALUES(1000) UNION ALL SELECT x+1 FROM cnt WHERE x<2000)
+  INSERT INTO t1(a,b,c) SELECT x, x, 123 FROM cnt;
+  CREATE INDEX t1ca ON t1(c,a);
+  ANALYZE;
+} {}
+do_execsql_test analyzeE-3.1 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a BETWEEN 500 AND 2500 AND c=123;
+} {/SCAN t1/}
+do_execsql_test analyzeE-3.2 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a BETWEEN 2900 AND 3000 AND c=123;
+} {/SEARCH t1 USING INDEX t1ca/}
+do_execsql_test analyzeE-3.3 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a BETWEEN 1700 AND 1750 AND c=123;
+} {/SEARCH t1 USING INDEX t1ca/}
+do_execsql_test analyzeE-3.4 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a BETWEEN 1 AND 500 AND c=123
+} {/SEARCH t1 USING INDEX t1ca/}
+do_execsql_test analyzeE-3.5 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a BETWEEN 3000 AND 3000000 AND c=123
+} {/SEARCH t1 USING INDEX t1ca/}
+do_execsql_test analyzeE-3.6 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a<500 AND c=123
+} {/SEARCH t1 USING INDEX t1ca/}
+do_execsql_test analyzeE-3.7 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a>2500 AND c=123
+} {/SEARCH t1 USING INDEX t1ca/}
+do_execsql_test analyzeE-3.8 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a>1900 AND c=123
+} {/SEARCH t1 USING INDEX t1ca/}
+do_execsql_test analyzeE-3.9 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a>1100 AND c=123
+} {/SCAN t1/}
+do_execsql_test analyzeE-3.10 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a<1100 AND c=123
+} {/SEARCH t1 USING INDEX t1ca/}
+do_execsql_test analyzeE-3.11 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a<1900 AND c=123
+} {/SCAN t1/}
+
+# Repeat the 3.x tests using a DESCENDING index
+#
+do_execsql_test analyzeE-4.0 {
+  DROP INDEX t1ca;
+  CREATE INDEX t1ca ON t1(c ASC,a DESC);
+  ANALYZE;
+} {}
+do_execsql_test analyzeE-4.1 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a BETWEEN 500 AND 2500 AND c=123;
+} {/SCAN t1/}
+do_execsql_test analyzeE-4.2 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a BETWEEN 2900 AND 3000 AND c=123;
+} {/SEARCH t1 USING INDEX t1ca/}
+do_execsql_test analyzeE-4.3 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a BETWEEN 1700 AND 1750 AND c=123;
+} {/SEARCH t1 USING INDEX t1ca/}
+do_execsql_test analyzeE-4.4 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a BETWEEN 1 AND 500 AND c=123
+} {/SEARCH t1 USING INDEX t1ca/}
+do_execsql_test analyzeE-4.5 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a BETWEEN 3000 AND 3000000 AND c=123
+} {/SEARCH t1 USING INDEX t1ca/}
+do_execsql_test analyzeE-4.6 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a<500 AND c=123
+} {/SEARCH t1 USING INDEX t1ca/}
+do_execsql_test analyzeE-4.7 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a>2500 AND c=123
+} {/SEARCH t1 USING INDEX t1ca/}
+do_execsql_test analyzeE-4.8 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a>1900 AND c=123
+} {/SEARCH t1 USING INDEX t1ca/}
+do_execsql_test analyzeE-4.9 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a>1100 AND c=123
+} {/SCAN t1/}
+do_execsql_test analyzeE-4.10 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a<1100 AND c=123
+} {/SEARCH t1 USING INDEX t1ca/}
+do_execsql_test analyzeE-4.11 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a<1900 AND c=123
+} {/SCAN t1/}
+
+# 2023-03-23 https://sqlite.org/forum/forumpost/dc4854437b
+#
+reset_db
+do_execsql_test analyzeE-5.0 {
+  PRAGMA encoding = 'UTF-16';
+  CREATE TABLE t0 (c1 TEXT);
+  INSERT INTO t0 VALUES ('');
+  CREATE INDEX i0 ON t0(c1);
+  ANALYZE;
+  SELECT * FROM t0 WHERE t0.c1 BETWEEN '' AND (ABS(''));
+} {{}}
+
+# 2023-03-24 https://sqlite.org/forum/forumpost/bc39e531e5
+#
+reset_db
+do_execsql_test analyzeE-6.0 {
+  CREATE TABLE t1(x);
+  CREATE INDEX i1 ON t1(x,x,x,x,x||2);
+  CREATE INDEX i2 ON t1(1<2);
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<1000)
+    INSERT INTO t1(x) SELECT x FROM c;
+  ANALYZE;
+} {}
+do_execsql_test analyzeE-6.1 {
+  SELECT count(*)>1 FROM sqlite_stat4 WHERE idx='i2' AND neq='1000 1';
+} 1
+do_execsql_test analyzeE-6.2 {
+  SELECT count(*) FROM sqlite_stat4 WHERE idx='i2' AND neq<>'1000 1';
+} 0
+do_execsql_test analyzeE-6.3 {
+  SELECT count(*)>1 FROM sqlite_stat4 WHERE idx='i1' AND neq='1 1 1 1 1 1';
+} 1
+do_execsql_test analyzeE-6.4 {
+  SELECT count(*) FROM sqlite_stat4 WHERE idx='i1' AND neq<>'1 1 1 1 1 1';
+} 0
+
+# 2023-03-25 https://sqlite.org/forum/forumpost/5275207102
+# Correctly expand zeroblobs while processing STAT4 information
+# during query planning.
+#
+reset_db
+do_execsql_test analyzeE-7.0 {
+  CREATE TABLE t1(a TEXT COLLATE binary);
+  CREATE INDEX t1x ON t1(a);
+  INSERT INTO t1(a) VALUES(0),('apple'),(NULL),(''),('banana');
+  ANALYZE;
+  SELECT format('(%s)',a) FROM t1 WHERE t1.a > CAST(zeroblob(5) AS TEXT);
+} {(0) (apple) (banana)}
+do_execsql_test analyzeE-7.1 {
+  SELECT format('(%s)',a) FROM t1 WHERE t1.a <= CAST(zeroblob(5) AS TEXT);
+} {()}
+
+finish_test
diff --git a/test/analyzeF.test b/test/analyzeF.test
new file mode 100644
index 0000000000000000000000000000000000000000..00107993ebc6e4da86569a2f9894d156ee34c74a
--- /dev/null
+++ b/test/analyzeF.test
@@ -0,0 +1,150 @@
+# 2015-03-12
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# Test that deterministic scalar functions passed constant arguments
+# are used with stat4 data.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix analyzeF
+
+ifcapable {!stat4} {
+  finish_test
+  return
+}
+
+proc isqrt {i} { expr { int(sqrt($i)) } }
+db func isqrt isqrt
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(x INTEGER, y INTEGER);
+  WITH data(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM data
+  )
+  INSERT INTO t1 SELECT isqrt(i), isqrt(i) FROM data LIMIT 400;
+  CREATE INDEX t1x ON t1(x);
+  CREATE INDEX t1y ON t1(y);
+  ANALYZE;
+}
+
+proc str {a} { return $a }
+db func str str
+
+# Note: tests 7 to 12 might be unstable - as they assume SQLite will
+# prefer the expression to the right of the AND clause. Which of
+# course could change.
+#
+# Note 2: tests 9 and 10 depend on the tcl interface creating functions
+# without the SQLITE_DETERMINISTIC flag set.
+#
+foreach {tn where idx} {
+  1 "x = 4 AND y = 19"     {t1x (x=?)}
+  2 "x = 19 AND y = 4"     {t1y (y=?)}
+  3 "x = '4' AND y = '19'" {t1x (x=?)}
+  4 "x = '19' AND y = '4'" {t1y (y=?)}
+  5 "x = substr('5195', 2, 2) AND y = substr('145', 2, 1)" {t1y (y=?)}
+  6 "x = substr('145', 2, 1) AND y = substr('5195', 2, 2)" {t1x (x=?)}
+
+  7  "x = substr('5195', 2, 2+0) AND y = substr('145', 2, 1+0)" {t1y (y=?)}
+  8  "x = substr('145', 2, 1+0) AND y = substr('5195', 2, 2+0)" {t1y (y=?)}
+
+  9  "x = str('19') AND y = str('4')" {t1y (y=?)}
+  10 "x = str('4') AND y = str('19')" {t1y (y=?)}
+
+  11 "x = nullif('19', 0) AND y = nullif('4', 0)" {t1y (y=?)}
+  12 "x = nullif('4', 0) AND y = nullif('19', 0)" {t1y (y=?)}
+} {
+  set res "SEARCH t1 USING INDEX $idx"
+  do_eqp_test 1.$tn "SELECT * FROM t1 WHERE $where" $res
+}
+
+# Test that functions that do not exist - "func()" - do not cause an error.
+#
+do_catchsql_test 2.1 {
+  SELECT * FROM t1 WHERE x = substr('145', 2, 1) AND y = func(1, 2, 3)
+} {1 {no such function: func}}
+do_catchsql_test 2.2 {
+  UPDATE t1 SET y=y+1 WHERE x = substr('145', 2, 1) AND y = func(1, 2, 3)
+} {1 {no such function: func}}
+
+
+# Check that functions that accept zero arguments do not cause problems.
+#
+proc ret {x} { return $x }
+
+db func det4 -deterministic [list ret 4]
+db func nondet4 [list ret 4]
+db func det19 -deterministic [list ret 19]
+db func nondet19 [list ret 19]
+
+foreach {tn where idx} {
+  1 "x = det4() AND y = det19()"     {t1x (x=?)}
+  2 "x = det19() AND y = det4()"     {t1y (y=?)}
+
+  3 "x = nondet4() AND y = nondet19()"     {t1y (y=?)}
+  4 "x = nondet19() AND y = nondet4()"     {t1y (y=?)}
+} {
+  set res "SEARCH t1 USING INDEX $idx"
+  do_eqp_test 3.$tn "SELECT * FROM t1 WHERE $where" $res
+}
+
+
+execsql { DELETE FROM t1 }
+
+proc throw_error {err} { error $err }
+db func error -deterministic throw_error
+do_catchsql_test 4.1 {
+  SELECT * FROM t1 WHERE x = error('error one') AND y = 4;
+} {1 {error one}}
+
+do_catchsql_test 4.2 {
+  SELECT * FROM t1 WHERE x = zeroblob(2200000000) AND y = 4;
+} {1 {string or blob too big}}
+
+sqlite3_limit db SQLITE_LIMIT_LENGTH 1000000
+proc dstr {} { return [string repeat x 1100000] }
+db func dstr -deterministic dstr
+do_catchsql_test 4.3 {
+  SELECT * FROM t1 WHERE x = dstr() AND y = 11;
+} {1 {string or blob too big}}
+
+do_catchsql_test 4.4 {
+  SELECT * FROM t1 WHERE x = test_zeroblob(1100000) AND y = 4;
+} {1 {string or blob too big}}
+
+# 2016-12-08: Constraints of the form "x=? AND x IS NOT NULL" were being
+# mishandled.  The sqlite3Stat4ProbeSetValue() routine was assuming that
+# valueNew() was returning a Mem object that was preset to NULL, which is
+# not the case.  The consequence was the the "x IS NOT NULL" constraint
+# was used to drive the index (via the "x>NULL" pseudo-constraint) rather
+# than the "x=?" constraint.
+#
+do_execsql_test 5.1 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b TEXT, c INT);
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<10000)
+    INSERT INTO t1(a, c) SELECT x, x FROM c;
+  UPDATE t1 SET b=printf('x%02x',a/500) WHERE a>4000;
+  UPDATE t1 SET b='xyz' where a>=9998;
+  CREATE INDEX t1b ON t1(b);
+  ANALYZE;
+  SELECT count(*), b FROM t1 GROUP BY 2 ORDER BY 2;
+} {4000 {} 499 x08 500 x09 500 x0a 500 x0b 500 x0c 500 x0d 500 x0e 500 x0f 500 x10 500 x11 500 x12 498 x13 3 xyz}
+do_execsql_test 5.2 {
+  explain query plan
+  SELECT * FROM t1 WHERE b='xyz' AND b IS NOT NULL ORDER BY +a;
+  /*                  v---- Should be "=", not ">"  */
+} {/USING INDEX t1b .b=/}
+do_execsql_test 5.3 {
+  SELECT * FROM t1 WHERE b='xyz' AND b IS NOT NULL ORDER BY +a;
+} {9998 xyz 9998 9999 xyz 9999 10000 xyz 10000}
+
+finish_test
diff --git a/test/analyzeG.test b/test/analyzeG.test
new file mode 100644
index 0000000000000000000000000000000000000000..ca65bc3b9627591841502367d7d5389e06682d0d
--- /dev/null
+++ b/test/analyzeG.test
@@ -0,0 +1,84 @@
+# 2020-02-23
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# Tests for functionality related to ANALYZE.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !stat4 {
+  finish_test
+  return
+}
+set testprefix analyzeG
+
+#-------------------------------------------------------------------------
+# Test cases 1.* seek to verify that even if an index is not used, its
+# stat4 data may be used by the planner to estimate the number of
+# rows that match an unindexed constraint on the same column.
+#
+do_execsql_test 1.0 {
+  PRAGMA automatic_index = 0;
+  CREATE TABLE t1(a, x);
+  CREATE TABLE t2(b, y);
+  WITH s(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<100
+  )
+  INSERT INTO t1 SELECT (i%50), NULL FROM s;
+  WITH s(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<100
+  )
+  INSERT INTO t2 SELECT (CASE WHEN i<95 THEN 44 ELSE i END), NULL FROM s;
+}
+
+# Join tables t1 and t2. Both contain 100 rows. (a=44) matches 2 rows
+# in "t1", (b=44) matches 95 rows in table "t2". But the planner doesn't
+# know this, so it has no preference as to which order the tables are
+# scanned in. In practice this means that tables are scanned in the order
+# they are specified in in the FROM clause.
+do_eqp_test 1.1.1 {
+  SELECT * FROM t1, t2 WHERE a=44 AND b=44;
+} {
+
+}
+do_eqp_test 1.1.2 {
+  SELECT * FROM t2, t1 WHERE a=44 AND b=44 
+} {
+  QUERY PLAN
+  |--SCAN t2
+  `--SCAN t1
+}
+
+do_execsql_test 1.2 {
+  CREATE INDEX t2b ON t2(b);
+  ANALYZE;
+}
+
+# Now, with the ANALYZE data, the planner knows that (b=44) matches a 
+# large number of rows. So it elects to scan table "t1" first, regardless
+# of the order in which the tables are specified in the FROM clause.
+do_eqp_test 1.3.1 {
+  SELECT * FROM t1, t2 WHERE a=44 AND b=44;
+} {
+  QUERY PLAN
+  |--SCAN t1
+  `--SCAN t2
+}
+do_eqp_test 1.3.2 {
+  SELECT * FROM t2, t1 WHERE a=44 AND b=44 
+} {
+  QUERY PLAN
+  |--SCAN t1
+  `--SCAN t2
+}
+
+
+finish_test
diff --git a/test/analyzer1.test b/test/analyzer1.test
new file mode 100644
index 0000000000000000000000000000000000000000..51b5f8b6af52b64977798cfe3648faa31cf0a96a
--- /dev/null
+++ b/test/analyzer1.test
@@ -0,0 +1,55 @@
+# 2015-05-11
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Quick tests for the sqlite3_analyzer tool
+#
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+if {$tcl_platform(platform)=="windows"} {
+  set PROG "sqlite3_analyzer.exe"
+} else {
+  set PROG "./sqlite3_analyzer"
+}
+if {![file exe $PROG]} {
+  set PROG [file normalize [file join $::cmdlinearg(TESTFIXTURE_HOME) $PROG]]
+  if {![file exe $PROG]} {
+    puts "analyzer1 cannot run because $PROG is not available"
+    finish_test
+    return
+  }
+}
+db close
+forcedelete test.db test.db-journal test.db-wal
+sqlite3 db test.db
+
+do_test analyzer1-1.0 {
+  db eval {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+    CREATE TABLE t2(a INT PRIMARY KEY, b) WITHOUT ROWID;
+    WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<250)
+    INSERT INTO t1(a,b) SELECT x, randomblob(200) FROM c;
+    INSERT INTO t2(a,b) SELECT a, b FROM t1;
+  }
+  set line "exec $PROG test.db"
+  unset -nocomplain ::MSG
+  catch {eval $line} ::MSG
+} {0}
+do_test analyzer1-1.1 {
+  regexp {^/\*\* Disk-Space Utilization.*COMMIT;\W*$} $::MSG
+} {1}
+
+finish_test
diff --git a/test/atof1.test b/test/atof1.test
new file mode 100644
index 0000000000000000000000000000000000000000..39747e5da516916fdfa61693b49d636aeda8778d
--- /dev/null
+++ b/test/atof1.test
@@ -0,0 +1,124 @@
+# 2012 June 18
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+# Tests of the sqlite3AtoF() function.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+set mxpow 35
+expr srand(1)
+for {set i 1} {$i<20000} {incr i} {
+  set pow [expr {int((rand()-0.5)*$mxpow)}]
+  set x [expr {pow((rand()-0.5)*2*rand(),$pow)}]
+  set xf [format %.32e $x]
+
+  # Verify that text->real conversions get exactly same ieee754 floating-
+  # point value in SQLite as they do in TCL.
+  #
+  do_test atof1-1.$i.1 {
+    set y [db eval "SELECT $xf=\$x"]
+    if {!$y} {
+      puts -nonewline \173[db eval "SELECT real2hex($xf), real2hex(\$x)"]\175
+      db eval "SELECT $xf+0.0 AS a, \$x AS b" {
+        puts [format "\n%.60e\n%.60e\n%.60e" $x $a $b]
+      }
+    }
+    set y
+  } {1}
+
+  # Verify that round-trip real->text->real conversions using the quote()
+  # function preserve the bits of the numeric value exactly.
+  #
+  do_test atof1-1.$i.2 {
+    set y [db eval {SELECT $x=CAST(quote($x) AS real)}]
+    if {!$y} {
+      db eval {SELECT real2hex($x) a, real2hex(CAST(quote($x) AS real)) b} {}
+      puts ""
+      if {$x<0} {
+        puts "[format {!SCALE: %17s 1 23456789 123456789 123456789} {}]"
+      } else {
+        puts "[format {!SCALE: %16s 1 23456789 123456789 123456789} {}]"
+      }
+      puts "!IN:    $a $xf"
+      puts [format {!QUOTE: %16s %s} {} [db eval {SELECT quote($x)}]]
+      db eval {SELECT CAST(quote($x) AS real) c} {}
+      puts "!OUT:   $b [format %.32e $c]"
+    }
+    set y
+  } {1}
+}
+
+# 2020-01-08 ticket 9eda2697f5cc1aba
+# When running sqlite3AtoF() on a blob with an odd number of bytes using
+# UTF16, ignore the last byte so that the string has an integer number of
+# UTF16 code points.
+#
+reset_db
+do_execsql_test atof1-2.10 {
+  PRAGMA encoding = 'UTF16be';
+  CREATE TABLE t1(a, b);
+  INSERT INTO t1(rowid,a) VALUES (1,x'00'),(2,3);
+  SELECT substr(a,',') is true FROM t1 ORDER BY rowid;
+} {0 1}
+do_execsql_test atof1-2.20 {
+  SELECT substr(a,',') is true FROM t1 ORDER BY rowid DESC;
+} {1 0}
+do_execsql_test atof1-2.30 {
+  CREATE INDEX i1 ON t1(a);
+  SELECT count(*) FROM t1 WHERE substr(a,',');
+} {1}
+# 2020-08-27 OSSFuzz find related to the above.
+do_execsql_test atof1-2.40 {
+  SELECT randomblob(0) - 1;
+} {-1}
+
+# 2024-12-07 https://sqlite.org/forum/forumpost/569a7209179a7f5e
+# Incorrect conversion of floating point or integer literals that
+# have significant digits that begin with 1844674407370955 followed
+# by more digits in the range 0592 throgh 1609.
+#
+do_execsql_test atof-3.1 {
+  WITH RECURSIVE bigval(i,vtxt) AS (
+    SELECT 0, '18446744073709550000'
+    UNION ALL
+    SELECT i+1, format('1844674407370955%04d',i+1) FROM bigval
+     WHERE i+1<=9999
+  )
+  SELECT vtxt, CAST(vtxt AS REAL) FROM bigval
+   WHERE CAST(vtxt AS REAL) NOT GLOB '1.8446744073709[56]*';
+} {}
+do_execsql_test atof-3.2 {
+  WITH RECURSIVE bigval(i,vtxt) AS (
+    SELECT 0, '18.446744073709550000'
+    UNION ALL
+    SELECT i+1, format('18.44674407370955%04d',i+1) FROM bigval
+     WHERE i+1<=9999
+  )
+  SELECT vtxt, CAST(vtxt AS REAL) FROM bigval
+   WHERE CAST(vtxt AS REAL) NOT GLOB '18.446744073709*';
+} {}
+do_execsql_test atof-3.3 {
+  WITH RECURSIVE exp(n,v1,v2) AS (
+    SELECT -200, '1.8446744073709550592e-200', '1.8446744073709551609e-200'
+    UNION ALL
+    SELECT n+1, ('1.8446744073709550592e'||n),('1.8446744073709551609e'||n)
+      FROM exp WHERE n<200
+  )
+  SELECT n, v1, v2
+    FROM exp
+   WHERE format('%.10e',CAST(v1 AS REAL)) NOT GLOB '1.8446*'
+      OR format('%.10e',CAST(v2 AS REAL)) NOT GLOB '1.8446*';
+} {}
+
+
+finish_test
diff --git a/test/atomic.test b/test/atomic.test
new file mode 100644
index 0000000000000000000000000000000000000000..6ce6debb731ed053e1c2741592c9c842d6da269c
--- /dev/null
+++ b/test/atomic.test
@@ -0,0 +1,41 @@
+# 2015-11-07
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the WITH clause.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix atomic
+
+db close
+if {[atomic_batch_write test.db]==0} {
+  puts "No f2fs atomic-batch-write support. Skipping tests..."
+  finish_test
+  return
+}
+
+reset_db
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(x, y);
+  BEGIN;
+    INSERT INTO t1 VALUES(1, 2);
+}
+
+do_test 1.1 { file exists test.db-journal } {0}
+
+do_execsql_test 1.2 {
+  COMMIT;
+}
+
+
+finish_test
diff --git a/test/atomic2.test b/test/atomic2.test
new file mode 100644
index 0000000000000000000000000000000000000000..5b786586bf4462e00d2d2c5dbe7b4e1ba990fcdd
--- /dev/null
+++ b/test/atomic2.test
@@ -0,0 +1,95 @@
+# 2018-07-15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing that if an IO error is encountered
+# as part of an atomic F2FS commit, an attempt is made to commit the
+# transaction using a legacy journal commit.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+set ::testprefix atomic2
+
+db close
+if {[atomic_batch_write test.db]==0} {
+  puts "No f2fs atomic-batch-write support. Skipping tests..."
+  finish_test
+  return
+}
+
+reset_db
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(x, y);
+  CREATE INDEX i1x ON t1(x);
+  CREATE INDEX i2x ON t1(y);
+
+  WITH s(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<100 )
+  INSERT INTO t1 SELECT randomblob(400), randomblob(400) FROM s;
+}
+
+set setup [list \
+  -injectstart at_injectstart \
+  -injectstop  at_injectstop  \
+]
+
+set ::at_fail  0
+set ::at_nfail 0
+
+proc at_injectstart {iFail} {
+  set ::at_fail $iFail
+  set ::at_nfail 0
+}
+proc at_injectstop {} {
+  set ::at_fail 0
+  return $::at_nfail
+}
+
+proc at_vfs_callback {method file z args} {
+  if {$::at_fail>0} {
+    incr ::at_fail -1
+    if {$::at_fail==0} {
+      incr ::at_nfail
+      return SQLITE_IOERR
+    } elseif {$method=="xFileControl" && $z=="COMMIT_ATOMIC_WRITE"} {
+      set ::at_fail 0
+    }
+  }
+  return SQLITE_OK
+}
+
+testvfs tvfs -default 1
+tvfs script at_vfs_callback
+tvfs filter {xFileControl xWrite}
+
+faultsim_save_and_close
+
+do_one_faultsim_test 2.0 {*}$setup -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql {
+    WITH s(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<100 )
+    INSERT INTO t1 SELECT randomblob(400), randomblob(400) FROM s;
+  }
+} -test {
+  faultsim_test_result {0 {}}
+
+  set res [execsql {SELECT count(*) FROM t1; PRAGMA integrity_check}]
+  if {$res!="200 ok"} {
+    error "expected {200 ok}, got $res"
+  }
+}
+
+db close
+tvfs delete
+
+finish_test
diff --git a/test/atrc.c b/test/atrc.c
new file mode 100644
index 0000000000000000000000000000000000000000..673f12cc441b764fb7dd80133ed771df7ab86dc8
--- /dev/null
+++ b/test/atrc.c
@@ -0,0 +1,150 @@
+/*
+** This program generates a script that stresses the ALTER TABLE statement.
+** Compile like this:
+**
+**      gcc -g -c sqlite3.c
+**      gcc -g -o atrc atrc.c sqlite3.o -ldl -lpthread
+**
+** Run the program this way:
+**
+**      ./atrc DATABASE | ./sqlite3 DATABASE
+**
+** This program "atrc" generates a script that can be fed into an ordinary
+** command-line shell.  The script performs many ALTER TABLE statements,
+** runs ".schema --indent" and "PRAGMA integrity_check;", does more
+** ALTER TABLE statements to restore the original schema, and then
+** runs "PRAGMA integrity_check" again.  Every table and column has its
+** name changed.  The entire script is contained within BEGIN...ROLLBACK
+** so that no changes are ever actually made to the database.
+*/
+#include "sqlite3.h"
+#include <stdio.h>
+
+/*
+** Generate the text of ALTER TABLE statements that will rename
+** every column in table zTable to a generic name composed from
+** zColPrefix and a sequential number.  The generated text is
+** appended pConvert.  If pUndo is not NULL, then SQL text that
+** will undo the change is appended to pUndo.
+**
+** The table to be converted must be in the "main" schema.
+*/
+int rename_all_columns_of_table(
+  sqlite3 *db,                   /* Database connection */
+  const char *zTab,              /* Table whose columns should all be renamed */
+  const char *zColPrefix,        /* Prefix for new column names */
+  sqlite3_str *pConvert,         /* Append ALTER TABLE statements here */
+  sqlite3_str *pUndo             /* SQL to undo the change, if not NULL */
+){
+  sqlite3_stmt *pStmt;
+  int rc;
+  int cnt = 0;
+
+  rc = sqlite3_prepare_v2(db,
+         "SELECT name FROM pragma_table_info(?1);",
+         -1, &pStmt, 0);
+  if( rc ) return rc;
+  sqlite3_bind_text(pStmt, 1, zTab, -1, SQLITE_STATIC);
+  while( sqlite3_step(pStmt)==SQLITE_ROW ){
+    const char *zCol = (const char*)sqlite3_column_text(pStmt, 0);
+    cnt++;
+    sqlite3_str_appendf(pConvert,
+      "ALTER TABLE \"%w\" RENAME COLUMN \"%w\" TO \"%w%d\";\n",
+      zTab, zCol, zColPrefix, cnt
+    );
+    if( pUndo ){
+      sqlite3_str_appendf(pUndo,
+        "ALTER TABLE \"%w\" RENAME COLUMN \"%w%d\" TO \"%w\";\n",
+        zTab, zColPrefix, cnt, zCol
+      );
+    }
+  }
+  sqlite3_finalize(pStmt);
+  return SQLITE_OK; 
+}
+
+/* Rename all tables and their columns in the main database
+*/
+int rename_all_tables(
+  sqlite3 *db,              /* Database connection */
+  sqlite3_str *pConvert,    /* Append SQL to do the rename here */
+  sqlite3_str *pUndo        /* Append SQL to undo the rename here */
+){
+  sqlite3_stmt *pStmt;
+  int rc;
+  int cnt = 0;
+
+  rc = sqlite3_prepare_v2(db,
+         "SELECT name FROM sqlite_schema WHERE type='table'"
+         " AND name NOT LIKE 'sqlite_%';",
+         -1, &pStmt, 0);
+  if( rc ) return rc;
+  while( sqlite3_step(pStmt)==SQLITE_ROW ){
+    const char *zTab = (const char*)sqlite3_column_text(pStmt, 0);
+    char *zNewTab;
+    char zPrefix[2];
+
+    zPrefix[0] = (cnt%26) + 'a';
+    zPrefix[1] = 0;
+    zNewTab = sqlite3_mprintf("tx%d", ++cnt);
+    if( pUndo ){
+      sqlite3_str_appendf(pUndo,
+        "ALTER TABLE \"%s\" RENAME TO \"%w\";\n",
+        zNewTab, zTab
+      );
+    }
+    rename_all_columns_of_table(db, zTab, zPrefix, pConvert, pUndo);
+    sqlite3_str_appendf(pConvert,
+      "ALTER TABLE \"%w\" RENAME TO \"%s\";\n",
+      zTab, zNewTab
+    );
+    sqlite3_free(zNewTab);
+  }
+  sqlite3_finalize(pStmt);
+  return SQLITE_OK;
+}
+
+/*
+** Generate a script that does this:
+**
+**   (1) Start a transaction
+**   (2) Rename all tables and columns to use generic names.
+**   (3) Print the schema after this rename
+**   (4) Run pragma integrity_check
+**   (5) Do more ALTER TABLE statements to change the names back
+**   (6) Run pragma integrity_check again
+**   (7) Rollback the transaction
+*/
+int main(int argc, char **argv){
+  sqlite3 *db;
+  int rc;
+  sqlite3_str *pConvert;
+  sqlite3_str *pUndo;
+  char *zDbName;
+  char *zSql1, *zSql2;
+  if( argc!=2 ){
+    fprintf(stderr, "Usage: %s DATABASE\n", argv[0]);
+  }
+  zDbName = argv[1];
+  rc = sqlite3_open(zDbName, &db);
+  if( rc ){
+    fprintf(stderr, "sqlite3_open() returns %d\n", rc);
+    return 1;
+  }
+  pConvert = sqlite3_str_new(db);
+  pUndo = sqlite3_str_new(db);
+  rename_all_tables(db, pConvert, pUndo);
+  zSql1 = sqlite3_str_finish(pConvert);
+  zSql2 = sqlite3_str_finish(pUndo);
+  sqlite3_close(db);
+  printf("BEGIN;\n");
+  printf("%s", zSql1);
+  sqlite3_free(zSql1);
+  printf(".schema --indent\n");
+  printf("PRAGMA integrity_check;\n");
+  printf("%s", zSql2);
+  sqlite3_free(zSql2);
+  printf("PRAGMA integrity_check;\n");
+  printf("ROLLBACK;\n");
+  return 0; 
+}
diff --git a/test/attach.test b/test/attach.test
new file mode 100644
index 0000000000000000000000000000000000000000..557201d65437394be4b5b9d803945c6df93903bf
--- /dev/null
+++ b/test/attach.test
@@ -0,0 +1,928 @@
+# 2003 April 4
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the ATTACH and DETACH commands
+# and related functionality.
+#
+# $Id: attach.test,v 1.52 2009/05/29 14:39:08 drh Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !attach {
+  finish_test
+  return
+}
+
+for {set i 2} {$i<=15} {incr i} {
+  forcedelete test$i.db
+  forcedelete test$i.db-journal
+}
+
+do_test attach-1.1 {
+  execsql {
+    CREATE TABLE t1(a,b);
+    INSERT INTO t1 VALUES(1,2);
+    INSERT INTO t1 VALUES(3,4);
+    SELECT * FROM t1;
+  }
+} {1 2 3 4}
+do_test attach-1.2 {
+  sqlite3 db2 test2.db
+  execsql {
+    CREATE TABLE t2(x,y);
+    INSERT INTO t2 VALUES(1,'x');
+    INSERT INTO t2 VALUES(2,'y');
+    SELECT * FROM t2;
+  } db2
+} {1 x 2 y}
+do_test attach-1.3 {
+  execsql {
+    ATTACH DATABASE 'test2.db' AS two;
+    SELECT * FROM two.t2;
+  }
+} {1 x 2 y}
+
+# Tests for the sqlite3_db_filename interface
+#
+do_test attach-1.3.1 {
+  file tail [sqlite3_db_filename db main]
+} {test.db}
+do_test attach-1.3.2 {
+  file tail [sqlite3_db_filename db MAIN]
+} {test.db}
+do_test attach-1.3.3 {
+  file tail [sqlite3_db_filename db temp]
+} {}
+do_test attach-1.3.4 {
+  file tail [sqlite3_db_filename db two]
+} {test2.db}
+do_test attach-1.3.5 {
+  file tail [sqlite3_db_filename db three]
+} {}
+
+do_test attach-1.4 {
+  execsql {
+    SELECT * FROM t2;
+  }
+} {1 x 2 y}
+do_test attach-1.5 {
+  execsql {
+    DETACH DATABASE two;
+    SELECT * FROM t1;
+  }
+} {1 2 3 4}
+do_test attach-1.6 {
+  catchsql {
+    SELECT * FROM t2;
+  }
+} {1 {no such table: t2}}
+do_test attach-1.7 {
+  catchsql {
+    SELECT * FROM two.t2;
+  }
+} {1 {no such table: two.t2}}
+do_test attach-1.8 {
+  catchsql {
+    ATTACH DATABASE 'test3.db' AS three;
+  }
+} {0 {}}
+do_test attach-1.9 {
+  catchsql {
+    SELECT * FROM three.sqlite_master;
+  }
+} {0 {}}
+do_test attach-1.10 {
+  catchsql {
+    DETACH DATABASE [three];
+  }
+} {0 {}}
+do_test attach-1.11 {
+  execsql {
+    ATTACH 'test.db' AS db2;
+    ATTACH 'test.db' AS db3;
+    ATTACH 'test.db' AS db4;
+    ATTACH 'test.db' AS db5;
+    ATTACH 'test.db' AS db6;
+    ATTACH 'test.db' AS db7;
+    ATTACH 'test.db' AS db8;
+    ATTACH 'test.db' AS db9;
+  }
+} {}
+proc db_list {db} {
+  set list {}
+  foreach {idx name file} [execsql {PRAGMA database_list} $db] {
+    lappend list $idx $name
+  }
+  return $list
+}
+ifcapable schema_pragmas {
+do_test attach-1.11b {
+  db_list db
+} {0 main 2 db2 3 db3 4 db4 5 db5 6 db6 7 db7 8 db8 9 db9}
+} ;# ifcapable schema_pragmas 
+do_test attach-1.12 {
+  catchsql {
+    ATTACH 'test.db' as db2;
+  }
+} {1 {database db2 is already in use}}
+do_test attach-1.12.2 {
+  db errorcode
+} {1}
+do_test attach-1.13 {
+  catchsql {
+    ATTACH 'test.db' as db5;
+  }
+} {1 {database db5 is already in use}}
+do_test attach-1.14 {
+  catchsql {
+    ATTACH 'test.db' as db9;
+  }
+} {1 {database db9 is already in use}}
+do_catchsql_test attach-1.15 {
+  ATTACH 'test.db' as main;
+} {1 {database main is already in use}}
+ifcapable tempdb {
+  do_test attach-1.16 {
+    catchsql {
+      ATTACH 'test.db' as temp;
+    }
+  } {1 {database temp is already in use}}
+}
+do_catchsql_test attach-1.17 {
+  ATTACH 'test.db' as MAIN;
+} {1 {database MAIN is already in use}}
+do_test attach-1.18 {
+  catchsql {
+    ATTACH 'test.db' as db10;
+    ATTACH 'test.db' as db11;
+  }
+} {0 {}}
+if {$SQLITE_MAX_ATTACHED==10} {
+  do_test attach-1.19 {
+    catchsql {
+      ATTACH 'test.db' as db12;
+    }
+  } {1 {too many attached databases - max 10}}
+  do_test attach-1.19.1 {
+    db errorcode
+  } {1}
+}
+do_test attach-1.20.1 {
+  execsql {
+    DETACH db5;
+  }
+} {}
+ifcapable schema_pragmas {
+do_test attach-1.20.2 {
+  db_list db
+} {0 main 2 db2 3 db3 4 db4 5 db6 6 db7 7 db8 8 db9 9 db10 10 db11}
+} ;# ifcapable schema_pragmas
+integrity_check attach-1.20.3
+ifcapable tempdb {
+  execsql {select * from temp.sqlite_master}
+}
+do_test attach-1.21 {
+  catchsql {
+    ATTACH 'test.db' as db12;
+  }
+} {0 {}}
+if {$SQLITE_MAX_ATTACHED==10} {
+  do_test attach-1.22 {
+    catchsql {
+      ATTACH 'test.db' as db13;
+    }
+  } {1 {too many attached databases - max 10}}
+  do_test attach-1.22.1 {
+    db errorcode
+  } {1}
+}
+do_test attach-1.23 {
+  catchsql {
+    DETACH "db14";
+  }
+} {1 {no such database: db14}}
+do_test attach-1.24 {
+  catchsql {
+    DETACH db12;
+  }
+} {0 {}}
+do_test attach-1.25 {
+  catchsql {
+    DETACH db12;
+  }
+} {1 {no such database: db12}}
+do_test attach-1.26 {
+  catchsql {
+    DETACH main;
+  }
+} {1 {cannot detach database main}}
+
+
+ifcapable tempdb {
+  do_test attach-1.27 {
+    catchsql {
+      DETACH Temp;
+    }
+  } {1 {cannot detach database Temp}}
+} else {
+  do_test attach-1.27 {
+    catchsql {
+      DETACH Temp;
+    }
+  } {1 {no such database: Temp}}
+}
+
+do_test attach-1.28 {
+  catchsql {
+    DETACH db11;
+    DETACH db10;
+    DETACH db9;
+    DETACH db8;
+    DETACH db7;
+    DETACH db6;
+    DETACH db4;
+    DETACH db3;
+    DETACH db2;
+  }
+} {0 {}}
+ifcapable schema_pragmas {
+  ifcapable tempdb {
+    do_test attach-1.29 {
+      db_list db
+    } {0 main 1 temp}
+  } else {
+    do_test attach-1.29 {
+      db_list db
+    } {0 main}
+  }
+} ;# ifcapable schema_pragmas
+
+ifcapable {trigger} {  # Only do the following tests if triggers are enabled
+do_test attach-2.1 {
+  execsql {
+    CREATE TABLE tx(x1,x2,y1,y2);
+    CREATE TRIGGER r1 AFTER UPDATE ON t2 FOR EACH ROW BEGIN
+      INSERT INTO tx(x1,x2,y1,y2) VALUES(OLD.x,NEW.x,OLD.y,NEW.y);
+    END;
+    SELECT * FROM tx;
+  } db2;
+} {}
+do_test attach-2.2 {
+  execsql {
+    UPDATE t2 SET x=x+10;
+    SELECT * FROM tx;
+  } db2;
+} {1 11 x x 2 12 y y}
+do_test attach-2.3 {
+  execsql {
+    CREATE TABLE tx(x1,x2,y1,y2);
+    SELECT * FROM tx;
+  }
+} {}
+do_test attach-2.4 {
+  execsql {
+    ATTACH 'test2.db' AS db2;
+  }
+} {}
+do_test attach-2.5 {
+  execsql {
+    UPDATE db2.t2 SET x=x+10;
+    SELECT * FROM db2.tx;
+  }
+} {1 11 x x 2 12 y y 11 21 x x 12 22 y y}
+do_test attach-2.6 {
+  execsql {
+    SELECT * FROM main.tx;
+  }
+} {}
+do_test attach-2.7 {
+  execsql {
+    SELECT type, name, tbl_name FROM db2.sqlite_master;
+  }
+} {table t2 t2 table tx tx trigger r1 t2}
+
+ifcapable schema_pragmas&&tempdb {
+  do_test attach-2.8 {
+    db_list db
+  } {0 main 1 temp 2 db2}
+} ;# ifcapable schema_pragmas&&tempdb
+ifcapable schema_pragmas&&!tempdb {
+  do_test attach-2.8 {
+    db_list db
+  } {0 main 2 db2}
+} ;# ifcapable schema_pragmas&&!tempdb
+
+do_test attach-2.9 {
+  execsql {
+    CREATE INDEX i2 ON t2(x);
+    SELECT * FROM t2 WHERE x>5;
+  } db2
+} {21 x 22 y}
+do_test attach-2.10 {
+  execsql {
+    SELECT type, name, tbl_name FROM sqlite_master;
+  } db2
+} {table t2 t2 table tx tx trigger r1 t2 index i2 t2}
+#do_test attach-2.11 {
+#  catchsql { 
+#    SELECT * FROM t2 WHERE x>5;
+#  }
+#} {1 {database schema has changed}}
+ifcapable schema_pragmas {
+  ifcapable tempdb {
+    do_test attach-2.12 {
+      db_list db
+    } {0 main 1 temp 2 db2}
+  } else {
+    do_test attach-2.12 {
+      db_list db
+    } {0 main 2 db2}
+  }
+} ;# ifcapable schema_pragmas
+do_test attach-2.13 {
+  catchsql {
+    SELECT * FROM t2 WHERE x>5;
+  }
+} {0 {21 x 22 y}}
+do_test attach-2.14 {
+  execsql {
+    SELECT type, name, tbl_name FROM sqlite_master;
+  }
+} {table t1 t1 table tx tx}
+do_test attach-2.15 {
+  execsql {
+    SELECT type, name, tbl_name FROM db2.sqlite_master;
+  }
+} {table t2 t2 table tx tx trigger r1 t2 index i2 t2}
+do_test attach-2.16 {
+  db close
+  sqlite3 db test.db
+  execsql {
+    ATTACH 'test2.db' AS db2;
+    SELECT type, name, tbl_name FROM db2.sqlite_master;
+  }
+} {table t2 t2 table tx tx trigger r1 t2 index i2 t2}
+} ;# End of ifcapable {trigger}
+
+do_test attach-3.1 {
+  db close
+  db2 close
+  sqlite3 db test.db
+  sqlite3 db2 test2.db
+  execsql {
+    SELECT * FROM t1
+  }
+} {1 2 3 4}
+
+# If we are testing a version of the code that lacks trigger support,
+# adjust the database contents so that they are the same if triggers
+# had been enabled.
+ifcapable {!trigger} {
+  db2 eval {
+    DELETE FROM t2;
+    INSERT INTO t2 VALUES(21, 'x');
+    INSERT INTO t2 VALUES(22, 'y');
+    CREATE TABLE tx(x1,x2,y1,y2);
+    INSERT INTO tx VALUES(1, 11, 'x', 'x');
+    INSERT INTO tx VALUES(2, 12, 'y', 'y');
+    INSERT INTO tx VALUES(11, 21, 'x', 'x');
+    INSERT INTO tx VALUES(12, 22, 'y', 'y');
+    CREATE INDEX i2 ON t2(x);
+  }
+}
+
+do_test attach-3.2 {
+  catchsql {
+    SELECT * FROM t2
+  }
+} {1 {no such table: t2}}
+do_test attach-3.3 {
+  catchsql {
+    ATTACH DATABASE 'test2.db' AS db2;
+    SELECT * FROM t2
+  }
+} {0 {21 x 22 y}}
+
+# Even though 'db' has started a transaction, it should not yet have
+# a lock on test2.db so 'db2' should be readable.
+do_test attach-3.4 {
+  execsql BEGIN
+  catchsql {
+    SELECT * FROM t2;
+  } db2;
+} {0 {21 x 22 y}}
+
+# Reading from test2.db from db within a transaction should not
+# prevent test2.db from being read by db2.
+do_test attach-3.5 {
+  execsql {SELECT * FROM t2}
+  catchsql {
+    SELECT * FROM t2;
+  } db2;
+} {0 {21 x 22 y}}
+
+# Making a change to test2.db through db  causes test2.db to get
+# a reserved lock.  It should still be accessible through db2.
+do_test attach-3.6 {
+  execsql {
+    UPDATE t2 SET x=x+1 WHERE x=50;
+  }
+  catchsql {
+    SELECT * FROM t2;
+  } db2;
+} {0 {21 x 22 y}}
+
+do_test attach-3.7 {
+  execsql ROLLBACK
+  execsql {SELECT * FROM t2} db2
+} {21 x 22 y}
+
+# Start transactions on both db and db2.  Once again, just because
+# we make a change to test2.db using db2, only a RESERVED lock is
+# obtained, so test2.db should still be readable using db.
+#
+do_test attach-3.8 {
+  execsql BEGIN
+  execsql BEGIN db2
+  execsql {UPDATE t2 SET x=0 WHERE 0} db2
+  catchsql {SELECT * FROM t2}
+} {0 {21 x 22 y}}
+
+# It is also still accessible from db2.
+do_test attach-3.9 {
+  catchsql {SELECT * FROM t2} db2
+} {0 {21 x 22 y}}
+
+do_test attach-3.10 {
+  execsql {SELECT * FROM t1}
+} {1 2 3 4}
+
+do_test attach-3.11 {
+  catchsql {UPDATE t1 SET a=a+1}
+} {0 {}}
+do_test attach-3.12 {
+  execsql {SELECT * FROM t1}
+} {2 2 4 4}
+
+# db2 has a RESERVED lock on test2.db, so db cannot write to any tables
+# in test2.db.
+do_test attach-3.13 {
+  catchsql {UPDATE t2 SET x=x+1 WHERE x=50}
+} {1 {database is locked}}
+
+# Change for version 3. Transaction is no longer rolled back
+# for a locked database.
+execsql {ROLLBACK}
+
+# db is able to reread its schema because db2 still only holds a
+# reserved lock.
+do_test attach-3.14 {
+  catchsql {SELECT * FROM t1}
+} {0 {1 2 3 4}}
+do_test attach-3.15 {
+  execsql COMMIT db2
+  execsql {SELECT * FROM t1}
+} {1 2 3 4}
+
+# Ticket #323
+do_test attach-4.1 {
+  execsql {DETACH db2}
+  db2 close
+  sqlite3 db2 test2.db
+  execsql {
+    CREATE TABLE t3(x,y);
+    CREATE UNIQUE INDEX t3i1 ON t3(x);
+    INSERT INTO t3 VALUES(1,2);
+    SELECT * FROM t3;
+  } db2;
+} {1 2}
+do_test attach-4.2 {
+  execsql {
+    CREATE TABLE t3(a,b);
+    CREATE UNIQUE INDEX t3i1b ON t3(a);
+    INSERT INTO t3 VALUES(9,10);
+    SELECT * FROM t3;
+  }
+} {9 10}
+do_test attach-4.3 {
+  execsql {
+    ATTACH DATABASE 'test2.db' AS db2;
+    SELECT * FROM db2.t3;
+  }
+} {1 2}
+do_test attach-4.4 {
+  execsql {
+    SELECT * FROM main.t3;
+  }
+} {9 10}
+do_test attach-4.5 {
+  execsql {
+    INSERT INTO db2.t3 VALUES(9,10);
+    SELECT * FROM db2.t3;
+  }
+} {1 2 9 10}
+execsql {
+  DETACH db2;
+}
+ifcapable {trigger} {
+  do_test attach-4.6 {
+    execsql {
+      CREATE TABLE t4(x);
+      CREATE TRIGGER t3r3 AFTER INSERT ON t3 BEGIN
+        INSERT INTO t4 VALUES('db2.' || NEW.x);
+      END;
+      INSERT INTO t3 VALUES(6,7);
+      SELECT * FROM t4;
+    } db2
+  } {db2.6}
+  do_test attach-4.7 {
+    execsql {
+      CREATE TABLE t4(y);
+      CREATE TRIGGER t3r3 AFTER INSERT ON t3 BEGIN
+        INSERT INTO t4 VALUES('main.' || NEW.a);
+      END;
+      INSERT INTO main.t3 VALUES(11,12);
+      SELECT * FROM main.t4;
+    }
+  } {main.11}
+}
+ifcapable {!trigger} {
+  # When we do not have trigger support, set up the table like they
+  # would have been had triggers been there.  The tests that follow need
+  # this setup.
+  execsql {
+    CREATE TABLE t4(x);
+    INSERT INTO t3 VALUES(6,7);
+    INSERT INTO t4 VALUES('db2.6');
+    INSERT INTO t4 VALUES('db2.13');
+  } db2
+  execsql {
+    CREATE TABLE t4(y);
+    INSERT INTO main.t3 VALUES(11,12);
+    INSERT INTO t4 VALUES('main.11');
+  }
+}
+
+
+# This one is tricky.  On the UNION ALL select, we have to make sure
+# the schema for both main and db2 is valid before starting to execute
+# the first query of the UNION ALL.  If we wait to test the validity of
+# the schema for main until after the first query has run, that test will
+# fail and the query will abort but we will have already output some
+# results.  When the query is retried, the results will be repeated.
+#
+ifcapable compound {
+do_test attach-4.8 {
+  execsql {
+    ATTACH DATABASE 'test2.db' AS db2;
+    INSERT INTO db2.t3 VALUES(13,14);
+    SELECT * FROM db2.t4 UNION ALL SELECT * FROM main.t4;
+  }
+} {db2.6 db2.13 main.11}
+
+do_test attach-4.9 {
+  ifcapable {!trigger} {execsql {INSERT INTO main.t4 VALUES('main.15')}}
+  execsql {
+    INSERT INTO main.t3 VALUES(15,16);
+    SELECT * FROM db2.t4 UNION ALL SELECT * FROM main.t4;
+  }
+} {db2.6 db2.13 main.11 main.15}
+} ;# ifcapable compound
+
+ifcapable !compound {
+  ifcapable {!trigger} {execsql {INSERT INTO main.t4 VALUES('main.15')}}
+  execsql {
+    ATTACH DATABASE 'test2.db' AS db2;
+    INSERT INTO db2.t3 VALUES(13,14);
+    INSERT INTO main.t3 VALUES(15,16);
+  } 
+} ;# ifcapable !compound
+
+ifcapable view {
+do_test attach-4.10 {
+  execsql {
+    DETACH DATABASE db2;
+  }
+  execsql {
+    CREATE VIEW v3 AS SELECT x*100+y FROM t3;
+    SELECT * FROM v3;
+  } db2
+} {102 910 607 1314}
+do_test attach-4.11 {
+  execsql {
+    CREATE VIEW v3 AS SELECT a*100+b FROM t3;
+    SELECT * FROM v3;
+  }
+} {910 1112 1516}
+do_test attach-4.12 {
+  execsql {
+    ATTACH DATABASE 'test2.db' AS db2;
+    SELECT * FROM db2.v3;
+  }
+} {102 910 607 1314}
+do_test attach-4.13 {
+  execsql {
+    SELECT * FROM main.v3;
+  }
+} {910 1112 1516}
+} ;# ifcapable view
+
+# Tests for the sqliteFix...() routines in attach.c
+#
+ifcapable {trigger} {
+do_test attach-5.1 {
+  db close
+  sqlite3 db test.db
+  db2 close
+  forcedelete test2.db
+  sqlite3 db2 test2.db
+  catchsql {
+    ATTACH DATABASE 'test.db' AS orig;
+    CREATE TRIGGER r1 AFTER INSERT ON orig.t1 BEGIN
+      SELECT 'no-op';
+    END;
+  } db2
+} {1 {trigger r1 cannot reference objects in database orig}}
+do_test attach-5.2 {
+  catchsql {
+    CREATE TABLE t5(x,y);
+    CREATE TRIGGER r5 AFTER INSERT ON t5 BEGIN
+      SELECT 'no-op';
+    END;
+  } db2
+} {0 {}}
+do_test attach-5.3 {
+  catchsql {
+    DROP TRIGGER r5;
+    CREATE TRIGGER r5 AFTER INSERT ON t5 BEGIN
+      SELECT 'no-op' FROM orig.t1;
+    END;
+  } db2
+} {1 {trigger r5 cannot reference objects in database orig}}
+ifcapable tempdb {
+  do_test attach-5.4 {
+    catchsql {
+      CREATE TEMP TABLE t6(p,q,r);
+      CREATE TRIGGER r5 AFTER INSERT ON t5 BEGIN
+        SELECT 'no-op' FROM temp.t6;
+      END;
+    } db2
+  } {1 {trigger r5 cannot reference objects in database temp}}
+}
+ifcapable subquery {
+  do_test attach-5.5 {
+    catchsql {
+      CREATE TRIGGER r5 AFTER INSERT ON t5 BEGIN
+        SELECT 'no-op' || (SELECT * FROM temp.t6);
+      END;
+    } db2
+  } {1 {trigger r5 cannot reference objects in database temp}}
+  do_test attach-5.6 {
+    catchsql {
+      CREATE TRIGGER r5 AFTER INSERT ON t5 BEGIN
+        SELECT 'no-op' FROM t1 WHERE x<(SELECT min(x) FROM temp.t6);
+      END;
+    } db2
+  } {1 {trigger r5 cannot reference objects in database temp}}
+  do_test attach-5.7 {
+    catchsql {
+      CREATE TRIGGER r5 AFTER INSERT ON t5 BEGIN
+        SELECT 'no-op' FROM t1 GROUP BY 1 HAVING x<(SELECT min(x) FROM temp.t6);
+      END;
+    } db2
+  } {1 {trigger r5 cannot reference objects in database temp}}
+  do_test attach-5.7 {
+    catchsql {
+      CREATE TRIGGER r5 AFTER INSERT ON t5 BEGIN
+        SELECT max(1,x,(SELECT min(x) FROM temp.t6)) FROM t1;
+      END;
+    } db2
+  } {1 {trigger r5 cannot reference objects in database temp}}
+  do_test attach-5.8 {
+    catchsql {
+      CREATE TRIGGER r5 AFTER INSERT ON t5 BEGIN
+        INSERT INTO t1 VALUES((SELECT min(x) FROM temp.t6),5);
+      END;
+    } db2
+  } {1 {trigger r5 cannot reference objects in database temp}}
+  do_test attach-5.9 {
+    catchsql {
+      CREATE TRIGGER r5 AFTER INSERT ON t5 BEGIN
+        DELETE FROM t1 WHERE x<(SELECT min(x) FROM temp.t6);
+      END;
+    } db2
+  } {1 {trigger r5 cannot reference objects in database temp}}
+} ;# endif subquery
+ifcapable json1&&vtab {
+  do_test attach-5.10 {
+    db close
+    catch {db2 close}
+    forcedelete test.db
+    sqlite3 db test.db
+    db eval {
+      CREATE TABLE t1(x);
+      CREATE TABLE t2(a,b);
+      CREATE TRIGGER x1 AFTER INSERT ON t1 BEGIN
+        INSERT INTO t2(a,b) SELECT key, value FROM json_each(NEW.x);
+      END;
+      INSERT INTO t1(x) VALUES('{"a":1}');
+      SELECT * FROM t2;
+    }
+  } {a 1}
+  do_test attach-5.11 {
+    sqlite3 db2 :memory:
+    db2 eval {
+      CREATE TABLE t3(y);
+      ATTACH 'test.db' AS aux;
+      INSERT INTO aux.t1(x) VALUES('{"b":2}');
+      SELECT * FROM aux.t2;
+    }
+  } {a 1 b 2}
+} ;# endif json1
+} ;# endif trigger
+
+# Check to make sure we get a sensible error if unable to open
+# the file that we are trying to attach.
+#
+do_test attach-6.1 {
+  catchsql {
+    ATTACH DATABASE 'no-such-file' AS nosuch;
+  }
+} {0 {}}
+if {$tcl_platform(platform)=="unix"} {
+  do_test attach-6.2 {
+    sqlite3 dbx cannot-read
+    dbx eval {CREATE TABLE t1(a,b,c)}
+    dbx close
+    file attributes cannot-read -permission 0000
+    if {[file writable cannot-read]} {
+      puts "\n**** Tests do not work when run as root ****"
+      forcedelete cannot-read
+      exit 1
+    }
+    catchsql {
+      ATTACH DATABASE 'cannot-read' AS noread;
+    }
+  } {1 {unable to open database: cannot-read}}
+  do_test attach-6.2.2 {
+    db errorcode
+  } {14}
+  forcedelete cannot-read
+}
+
+# Check the error message if we try to access a database that has
+# not been attached.
+do_test attach-6.3 {
+  catchsql {
+    CREATE TABLE no_such_db.t1(a, b, c);
+  }
+} {1 {unknown database no_such_db}}
+for {set i 2} {$i<=15} {incr i} {
+  catch {db$i close}
+}
+db close
+forcedelete test2.db
+forcedelete no-such-file
+
+ifcapable subquery {
+  do_test attach-7.1 {
+    forcedelete test.db test.db-journal
+    sqlite3 db test.db
+    catchsql {
+      DETACH RAISE ( IGNORE ) IN ( SELECT "AAAAAA" . * ORDER BY 
+      REGISTER LIMIT "AAAAAA" . "AAAAAA" OFFSET RAISE ( IGNORE ) NOT NULL )
+    }
+  } {1 {no such table: AAAAAA}}
+}
+
+# Create a malformed file (a file that is not a valid database)
+# and try to attach it
+#
+do_test attach-8.1 {
+  set fd [open test2.db w]
+  puts $fd "This file is not a valid SQLite database"
+  close $fd
+  catchsql {
+    ATTACH 'test2.db' AS t2;
+  }
+} {1 {file is not a database}}
+do_test attach-8.2 {
+  db errorcode
+} {26}
+forcedelete test2.db
+do_test attach-8.3 {
+  sqlite3 db2 test2.db
+  db2 eval {CREATE TABLE t1(x); BEGIN EXCLUSIVE}
+  catchsql {
+    ATTACH 'test2.db' AS t2;
+  }
+} {1 {database is locked}}
+do_test attach-8.4 {
+  db errorcode
+} {5}
+db2 close
+forcedelete test2.db
+
+# Test that it is possible to attach the same database more than
+# once when not in shared-cache mode. That this is not possible in
+# shared-cache mode is tested in shared7.test.
+do_test attach-9.1 {
+  forcedelete test4.db
+  execsql {
+    ATTACH 'test4.db' AS aux1;
+    CREATE TABLE aux1.t1(a, b);
+    INSERT INTO aux1.t1 VALUES(1, 2);
+    ATTACH 'test4.db' AS aux2;
+    SELECT * FROM aux2.t1;
+  }
+} {1 2}
+do_test attach-9.2 {
+  catchsql {
+    BEGIN;
+      INSERT INTO aux1.t1 VALUES(3, 4);
+      INSERT INTO aux2.t1 VALUES(5, 6);
+  }
+} {1 {database is locked}}
+do_test attach-9.3 {
+  execsql {
+    COMMIT;
+    SELECT * FROM aux2.t1;
+  }
+} {1 2 3 4}
+
+# Ticket [abe728bbc311d81334dae9762f0db87c07a98f79].
+# Multi-database commit on an attached TEMP database.
+#
+do_test attach-10.1 {
+  execsql {
+    ATTACH '' AS noname;
+    ATTACH ':memory:' AS inmem;
+    BEGIN;
+    CREATE TABLE noname.noname(x);
+    CREATE TABLE inmem.inmem(y);
+    CREATE TABLE main.main(z);
+    COMMIT;
+    SELECT name FROM noname.sqlite_master;
+    SELECT name FROM inmem.sqlite_master;
+  }
+} {noname inmem}
+do_test attach-10.2 {
+  lrange [execsql {
+    PRAGMA database_list;
+  }] 9 end
+} {4 noname {} 5 inmem {}}
+
+# Attach with a very long URI filename.
+#
+db close
+sqlite3 db test.db -uri 1
+do_execsql_test attach-11.1 {
+  ATTACH printf('file:%09000x/x.db?mode=memory&cache=shared',1) AS aux1;
+  CREATE TABLE aux1.t1(x,y);
+  INSERT INTO aux1.t1(x,y) VALUES(1,2),(3,4);
+  SELECT * FROM aux1.t1;
+} {1 2 3 4}
+
+# Ticket https://sqlite.org/src/tktview/a4e06e75a9ab61a1  2017-07-15
+# False positive when running integrity_check on a connection with
+# attached databases.  
+#
+db close
+sqlite3 db :memory:
+do_execsql_test attach-12.1 {
+  CREATE TABLE Table1 (col TEXT NOT NULL PRIMARY KEY);
+  ATTACH ':memory:' AS db2;
+  CREATE TABLE db2.Table2(col1 INTEGER, col2 INTEGER, col3 INTEGER, col4);
+  CREATE UNIQUE INDEX db2.idx_col1_unique ON Table2 (col1);
+  CREATE UNIQUE INDEX db2.idx_col23_unique ON Table2 (col2, col3);
+  CREATE INDEX db2.idx_col2 ON Table2 (col2);
+  INSERT INTO Table2 VALUES(1,2,3,4);
+  PRAGMA integrity_check;
+} {ok}
+
+# 2021-03-10 Forum post https://sqlite.org/forum/forumpost/a006d86f72
+#
+reset_db
+do_test attach-13.1 {
+  sqlite3 db :memory:
+  db eval {CREATE TABLE base(x);}
+  for {set i 0} {$i<$SQLITE_MAX_ATTACHED} {incr i} {
+    db eval "ATTACH ':memory:' AS a$i"
+  }
+  set m "a[expr {$SQLITE_MAX_ATTACHED-1}]"
+  db eval "CREATE TABLE $m.t1(a INTEGER PRIMARY KEY, b);"
+  db eval "CREATE TABLE $m.t2(a INTEGER PRIMARY KEY, b);"
+  db eval {SELECT a FROM t1 WHERE b IN (SELECT a FROM t2);}
+} {}
+
+finish_test
diff --git a/test/attach2.test b/test/attach2.test
new file mode 100644
index 0000000000000000000000000000000000000000..91e14ee7a4e06478ebc53bd8c1a0bfa7dafab18f
--- /dev/null
+++ b/test/attach2.test
@@ -0,0 +1,451 @@
+# 2003 July 1
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the ATTACH and DETACH commands
+# and related functionality.
+#
+# $Id: attach2.test,v 1.38 2007/12/13 21:54:11 drh Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix attach2
+
+ifcapable !attach {
+  finish_test
+  return
+}
+
+# Ticket #354
+#
+# Databases test.db and test2.db contain identical schemas.  Make
+# sure we can attach test2.db from test.db.
+#
+do_test attach2-1.1 {
+  db eval {
+    CREATE TABLE t1(a,b);
+    CREATE INDEX x1 ON t1(a);
+  }
+  forcedelete test2.db
+  forcedelete test2.db-journal
+  sqlite3 db2 test2.db
+  db2 eval {
+    CREATE TABLE t1(a,b);
+    CREATE INDEX x1 ON t1(a);
+  }
+  catchsql {
+    ATTACH 'test2.db' AS t2;
+  }
+} {0 {}}
+
+# Ticket #514
+#
+proc db_list {db} {
+  set list {}
+  foreach {idx name file} [execsql {PRAGMA database_list} $db] {
+    lappend list $idx $name
+  }
+  return $list
+}
+db eval {DETACH t2}
+do_test attach2-2.1 {
+  # lock test2.db then try to attach it.  This is no longer an error because
+  # db2 just RESERVES the database.  It does not obtain a write-lock until
+  # we COMMIT.
+  db2 eval {BEGIN}
+  db2 eval {UPDATE t1 SET a = 0 WHERE 0}
+  catchsql {
+    ATTACH 'test2.db' AS t2;
+  }
+} {0 {}}
+ifcapable schema_pragmas {
+do_test attach2-2.2 {
+  # make sure test2.db did get attached.
+  db_list db
+} {0 main 2 t2}
+} ;# ifcapable schema_pragmas
+db2 eval {COMMIT}
+
+do_test attach2-2.5 {
+  # Make sure we can read test2.db from db
+  catchsql {
+    SELECT name FROM t2.sqlite_master;
+  }
+} {0 {t1 x1}}
+do_test attach2-2.6 {
+  # lock test2.db and try to read from it.  This should still work because
+  # the lock is only a RESERVED lock which does not prevent reading.
+  #
+  db2 eval BEGIN
+  db2 eval {UPDATE t1 SET a = 0 WHERE 0}
+  catchsql {
+    SELECT name FROM t2.sqlite_master;
+  }
+} {0 {t1 x1}}
+do_test attach2-2.7 {
+  # but we can still read from test1.db even though test2.db is locked.
+  catchsql {
+    SELECT name FROM main.sqlite_master;
+  }
+} {0 {t1 x1}}
+do_test attach2-2.8 {
+  # start a transaction on test.db even though test2.db is locked.
+  catchsql {
+    BEGIN;
+    INSERT INTO t1 VALUES(8,9);
+  }
+} {0 {}}
+do_test attach2-2.9 {
+  execsql {
+    SELECT * FROM t1
+  }
+} {8 9}
+do_test attach2-2.10 {
+  # now try to write to test2.db.  the write should fail
+  catchsql {
+    INSERT INTO t2.t1 VALUES(1,2);
+  }
+} {1 {database is locked}}
+do_test attach2-2.11 {
+  # when the write failed in the previous test, the transaction should
+  # have rolled back.
+  # 
+  # Update for version 3: A transaction is no longer rolled back if a
+  #                       database is found to be busy.
+  execsql {rollback}
+  db2 eval ROLLBACK
+  execsql {
+    SELECT * FROM t1
+  }
+} {}
+do_test attach2-2.12 {
+  catchsql {
+    COMMIT
+  }
+} {1 {cannot commit - no transaction is active}}
+
+# Ticket #574:  Make sure it works using the non-callback API
+#
+do_test attach2-3.1 {
+  set DB [sqlite3_connection_pointer db]
+  set rc [catch {sqlite3_prepare $DB "ATTACH 'test2.db' AS t2" -1 TAIL} VM]
+  if {$rc} {lappend rc $VM}
+  sqlite3_step $VM
+  sqlite3_finalize $VM
+  set rc
+} {0}
+do_test attach2-3.2 {
+  set rc [catch {sqlite3_prepare $DB "DETACH t2" -1 TAIL} VM]
+  if {$rc} {lappend rc $VM}
+  sqlite3_step $VM
+  sqlite3_finalize $VM
+  set rc
+} {0}
+
+db close
+for {set i 2} {$i<=15} {incr i} {
+  catch {db$i close}
+}
+
+# A procedure to verify the status of locks on a database.
+#
+proc lock_status {testnum db expected_result} {
+  # If the database was compiled with OMIT_TEMPDB set, then 
+  # the lock_status list will not contain an entry for the temp
+  # db. But the test code doesn't know this, so its easiest 
+  # to filter it out of the $expected_result list here.
+  ifcapable !tempdb {
+    set expected_result [concat \
+        [lrange $expected_result 0 1] \
+        [lrange $expected_result 4 end] \
+    ]
+  }
+  do_test attach2-$testnum [subst {
+    $db cache flush  ;# The lock_status pragma should not be cached
+    execsql {PRAGMA lock_status} $db
+  }] $expected_result
+}
+set sqlite_os_trace 0
+
+# Tests attach2-4.* test that read-locks work correctly with attached
+# databases.
+do_test attach2-4.1 {
+  sqlite3 db test.db
+  sqlite3 db2 test.db
+  execsql {ATTACH 'test2.db' as file2}
+  execsql {ATTACH 'test2.db' as file2} db2
+} {}
+
+lock_status 4.1.1 db {main unlocked temp closed file2 unlocked}
+lock_status 4.1.2 db2 {main unlocked temp closed file2 unlocked}
+
+do_test attach2-4.2 {
+  # Handle 'db' read-locks test.db
+  execsql {BEGIN}
+  execsql {SELECT * FROM t1}
+  # Lock status:
+  #    db  - shared(main)
+  #    db2 -
+} {}
+
+lock_status 4.2.1 db {main shared temp closed file2 unlocked}
+lock_status 4.2.2 db2 {main unlocked temp closed file2 unlocked}
+
+do_test attach2-4.3 {
+  # The read lock held by db does not prevent db2 from reading test.db
+  execsql {SELECT * FROM t1} db2
+} {}
+
+lock_status 4.3.1 db {main shared temp closed file2 unlocked}
+lock_status 4.3.2 db2 {main unlocked temp closed file2 unlocked}
+
+do_test attach2-4.4 {
+  # db is holding a read lock on test.db, so we should not be able
+  # to commit a write to test.db from db2
+  catchsql {
+    INSERT INTO t1 VALUES(1, 2)
+  } db2 
+} {1 {database is locked}}
+
+lock_status 4.4.1 db {main shared temp closed file2 unlocked}
+lock_status 4.4.2 db2 {main unlocked temp closed file2 unlocked}
+
+# We have to make sure that the cache_size and the soft_heap_limit
+# are large enough to hold the entire change in memory.  If either
+# is set too small, then changes will spill to the database, forcing
+# a reserved lock to promote to exclusive.  That will mess up our
+# test results. 
+
+set soft_limit [sqlite3_soft_heap_limit 0]
+
+
+do_test attach2-4.5 {
+  # Handle 'db2' reserves file2.
+  execsql {BEGIN} db2
+  execsql {INSERT INTO file2.t1 VALUES(1, 2)} db2
+  # Lock status:
+  #    db  - shared(main)
+  #    db2 - reserved(file2)
+} {}
+
+lock_status 4.5.1 db {main shared temp closed file2 unlocked}
+lock_status 4.5.2 db2 {main unlocked temp closed file2 reserved}
+
+do_test attach2-4.6.1 {
+  # Reads are allowed against a reserved database.
+  catchsql {
+    SELECT * FROM file2.t1;
+  }
+  # Lock status:
+  #    db  - shared(main), shared(file2)
+  #    db2 - reserved(file2)
+} {0 {}}
+
+lock_status 4.6.1.1 db {main shared temp closed file2 shared}
+lock_status 4.6.1.2 db2 {main unlocked temp closed file2 reserved}
+
+do_test attach2-4.6.2 {
+  # Writes against a reserved database are not allowed.
+  catchsql {
+    UPDATE file2.t1 SET a=0;
+  }
+} {1 {database is locked}}
+
+lock_status 4.6.2.1 db {main shared temp closed file2 shared}
+lock_status 4.6.2.2 db2 {main unlocked temp closed file2 reserved}
+
+do_test attach2-4.7 {
+  # Ensure handle 'db' retains the lock on the main file after
+  # failing to obtain a write-lock on file2.
+  catchsql {
+    INSERT INTO t1 VALUES(1, 2)
+  } db2 
+} {0 {}}
+
+lock_status 4.7.1 db {main shared temp closed file2 shared}
+lock_status 4.7.2 db2 {main reserved temp closed file2 reserved}
+
+do_test attach2-4.8 {
+  # We should still be able to read test.db from db2
+  execsql {SELECT * FROM t1} db2
+} {1 2}
+
+lock_status 4.8.1 db {main shared temp closed file2 shared}
+lock_status 4.8.2 db2 {main reserved temp closed file2 reserved}
+
+do_test attach2-4.9 {
+  # Try to upgrade the handle 'db' lock.
+  catchsql {
+    INSERT INTO t1 VALUES(1, 2)
+  }
+} {1 {database is locked}}
+
+lock_status 4.9.1 db {main shared temp closed file2 shared}
+lock_status 4.9.2 db2 {main reserved temp closed file2 reserved}
+
+do_test attach2-4.10 {
+  # We cannot commit db2 while db is holding a read-lock
+  catchsql {COMMIT} db2
+} {1 {database is locked}}
+
+lock_status 4.10.1 db {main shared temp closed file2 shared}
+lock_status 4.10.2 db2 {main pending temp closed file2 reserved}
+
+set sqlite_os_trace 0
+do_test attach2-4.11 {
+  # db is able to commit.
+  catchsql {COMMIT}
+} {0 {}}
+
+lock_status 4.11.1 db {main unlocked temp closed file2 unlocked}
+lock_status 4.11.2 db2 {main pending temp closed file2 reserved}
+
+do_test attach2-4.12 {
+  # Now we can commit db2
+  catchsql {COMMIT} db2
+} {0 {}}
+
+lock_status 4.12.1 db {main unlocked temp closed file2 unlocked}
+lock_status 4.12.2 db2 {main unlocked temp closed file2 unlocked}
+
+do_test attach2-4.13 {
+  execsql {SELECT * FROM file2.t1}
+} {1 2}
+do_test attach2-4.14 {
+  execsql {INSERT INTO t1 VALUES(1, 2)}
+} {}
+do_test attach2-4.15 {
+  execsql {SELECT * FROM t1} db2
+} {1 2 1 2}
+
+db close
+db2 close
+forcedelete test2.db
+sqlite3_soft_heap_limit $soft_limit
+
+# These tests - attach2-5.* - check that the master journal file is deleted
+# correctly when a multi-file transaction is committed or rolled back.
+#
+# Update: It's not actually created if a rollback occurs, so that test
+# doesn't really prove too much.
+foreach f [glob test.db*] {forcedelete $f}
+do_test attach2-5.1 {
+  sqlite3 db test.db
+  execsql {
+    ATTACH 'test.db2' AS aux;
+  }
+} {}
+do_test attach2-5.2 {
+  execsql {
+    BEGIN;
+    CREATE TABLE tbl(a, b, c);
+    CREATE TABLE aux.tbl(a, b, c);
+    COMMIT;
+  }
+} {}
+do_test attach2-5.3 {
+  lsort [glob test.db*]
+} {test.db test.db2}
+do_test attach2-5.4 {
+  execsql {
+    BEGIN;
+    DROP TABLE aux.tbl;
+    DROP TABLE tbl;
+    ROLLBACK;
+  }
+} {}
+do_test attach2-5.5 {
+  lsort [glob test.db*]
+} {test.db test.db2}
+
+# Check that a database cannot be ATTACHed or DETACHed during a transaction.
+do_test attach2-6.1 {
+  execsql {
+    BEGIN;
+  }
+} {}
+do_test attach2-6.2 {
+  catchsql {
+    ATTACH 'test3.db' as aux2;
+    DETACH aux2;
+  }
+} {0 {}}
+
+# As of version 3.21.0: it is ok to DETACH from within a transaction
+#
+do_test attach2-6.3 {
+  catchsql {
+    DETACH aux;
+  }
+} {0 {}}
+
+db close
+
+ifcapable utf16 {
+  forcedelete test.db2      ;# utf-16
+  forcedelete test.db3      ;# utf-16
+  forcedelete test.db4      ;# utf-8
+  
+  sqlite3 db2 test.db2 
+  do_execsql_test -db db2 1.1 {
+    PRAGMA encoding = 'utf16';
+    CREATE TABLE t2(x);
+    INSERT INTO t2 VALUES('text2');
+  }
+  db2 close
+  
+  sqlite3 db3 test.db3 
+  do_execsql_test -db db3 1.2 {
+    PRAGMA encoding = 'utf16';
+    CREATE TABLE t3(x);
+    INSERT INTO t3 VALUES('text3');
+  }
+  db3 close
+  
+  sqlite3 db4 test.db4 
+  do_execsql_test -db db4 1.3 {
+    PRAGMA encoding = 'utf8';
+    CREATE TABLE t4(x);
+    INSERT INTO t4 VALUES('text4');
+  }
+  db4 close
+  
+  reset_db
+  do_execsql_test 2.1 {
+    PRAGMA encoding = 'utf16';
+    ATTACH 'test.db2' AS aux;
+    SELECT * FROM t2;
+  } {text2}
+  
+  reset_db
+  do_execsql_test 2.2 {
+    ATTACH 'test.db4' AS aux;
+    SELECT * FROM t4;
+  } {text4}
+  
+  db close
+  sqlite3 db test.db2
+  do_execsql_test 2.3 {
+    ATTACH 'test.db3' AS aux;
+    SELECT * FROM t3;
+    SELECT * FROM t2;
+  } {text3 text2}
+  
+  db close
+  sqlite3 db test.db2
+  do_catchsql_test 2.4 {
+    ATTACH 'test.db4' AS aux;
+  } {1 {attached databases must use the same text encoding as main database}}
+  
+  db close
+}
+
+finish_test
diff --git a/test/attach3.test b/test/attach3.test
new file mode 100644
index 0000000000000000000000000000000000000000..1c8601c7b35472b8139a5a1d0b1d8d7848f94ebe
--- /dev/null
+++ b/test/attach3.test
@@ -0,0 +1,353 @@
+# 2003 July 1
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the ATTACH and DETACH commands
+# and schema changes to attached databases.
+#
+# $Id: attach3.test,v 1.18 2007/10/09 08:29:32 danielk1977 Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !attach {
+  finish_test
+  return
+}
+
+# The tests in this file were written before SQLite supported recursive
+# trigger invocation, and some tests depend on that to pass. So disable
+# recursive triggers for this file.
+catchsql { pragma recursive_triggers = off } 
+
+# Create tables t1 and t2 in the main database
+execsql {
+  CREATE TABLE t1(a, b);
+  CREATE TABLE t2(c, d);
+}
+
+# Create tables t1 and t2 in database file test2.db
+forcedelete test2.db
+forcedelete test2.db-journal
+sqlite3 db2 test2.db
+execsql {
+  CREATE TABLE t1(a, b);
+  CREATE TABLE t2(c, d);
+} db2
+db2 close
+
+# Create a table in the auxilary database.
+do_test attach3-1.1 {
+  execsql {
+    ATTACH 'test2.db' AS aux;
+  }
+} {}
+do_test attach3-1.2 {
+  execsql {
+    CREATE TABLE aux.t3(e, f);
+  }
+} {}
+do_test attach3-1.3 {
+  execsql {
+    SELECT * FROM sqlite_master WHERE name = 't3';
+  }
+} {}
+do_test attach3-1.4 {
+  execsql {
+    SELECT * FROM aux.sqlite_master WHERE name = 't3';
+  }
+} "table t3 t3 [expr $AUTOVACUUM?5:4] {CREATE TABLE t3(e, f)}"
+do_test attach3-1.5 {
+  execsql {
+    INSERT INTO t3 VALUES(1, 2);
+    SELECT * FROM t3;
+  }
+} {1 2}
+
+# Create an index on the auxilary database table.
+do_test attach3-2.1 {
+  execsql {
+    CREATE INDEX aux.i1 on t3(e);
+  }
+} {}
+do_test attach3-2.2 {
+  execsql {
+    SELECT * FROM sqlite_master WHERE name = 'i1';
+  }
+} {}
+do_test attach3-2.3 {
+  execsql {
+    SELECT * FROM aux.sqlite_master WHERE name = 'i1';
+  }
+} "index i1 t3 [expr $AUTOVACUUM?6:5] {CREATE INDEX i1 on t3(e)}"
+
+# Drop the index on the aux database table.
+do_test attach3-3.1 {
+  execsql {
+    DROP INDEX aux.i1;
+    SELECT * FROM aux.sqlite_master WHERE name = 'i1';
+  }
+} {}
+do_test attach3-3.2 {
+  execsql {
+    CREATE INDEX aux.i1 on t3(e);
+    SELECT * FROM aux.sqlite_master WHERE name = 'i1';
+  }
+} "index i1 t3 [expr $AUTOVACUUM?6:5] {CREATE INDEX i1 on t3(e)}"
+do_test attach3-3.3 {
+  execsql {
+    DROP INDEX i1;
+    SELECT * FROM aux.sqlite_master WHERE name = 'i1';
+  }
+} {}
+
+# Drop tables t1 and t2 in the auxilary database.
+do_test attach3-4.1 {
+  execsql {
+    DROP TABLE aux.t1;
+    SELECT name FROM aux.sqlite_master;
+  }
+} {t2 t3}
+do_test attach3-4.2 {
+  # This will drop main.t2
+  execsql {
+    DROP TABLE t2;
+    SELECT name FROM aux.sqlite_master;
+  }
+} {t2 t3}
+do_test attach3-4.3 {
+  execsql {
+    DROP TABLE t2;
+    SELECT name FROM aux.sqlite_master;
+  }
+} {t3}
+
+# Create a view in the auxilary database.
+ifcapable view {
+do_test attach3-5.1 {
+  execsql {
+    CREATE VIEW aux.v1 AS SELECT * FROM t3;
+  }
+} {}
+do_test attach3-5.2 {
+  execsql {
+    SELECT * FROM aux.sqlite_master WHERE name = 'v1';
+  }
+} {view v1 v1 0 {CREATE VIEW v1 AS SELECT * FROM t3}}
+do_test attach3-5.3 {
+  execsql {
+    INSERT INTO aux.t3 VALUES('hello', 'world');
+    SELECT * FROM v1;
+  }
+} {1 2 hello world}
+
+# Drop the view 
+do_test attach3-6.1 {
+  execsql {
+    DROP VIEW aux.v1;
+  }
+} {}
+do_test attach3-6.2 {
+  execsql {
+    SELECT * FROM aux.sqlite_master WHERE name = 'v1';
+  }
+} {}
+} ;# ifcapable view
+
+ifcapable {trigger} {
+# Create a trigger in the auxilary database.
+do_test attach3-7.1 {
+  execsql {
+    CREATE TRIGGER aux.tr1 AFTER INSERT ON t3 BEGIN
+      INSERT INTO t3 VALUES(new.e*2, new.f*2);
+    END;
+  }
+} {}
+do_test attach3-7.2 {
+  execsql {
+    DELETE FROM t3;
+    INSERT INTO t3 VALUES(10, 20);
+    SELECT * FROM t3;
+  }
+} {10 20 20 40}
+do_test attach3-5.3 {
+  execsql {
+    SELECT * FROM aux.sqlite_master WHERE name = 'tr1';
+  }
+} {trigger tr1 t3 0 {CREATE TRIGGER tr1 AFTER INSERT ON t3 BEGIN
+      INSERT INTO t3 VALUES(new.e*2, new.f*2);
+    END}}
+
+# Drop the trigger 
+do_test attach3-8.1 {
+  execsql {
+    DROP TRIGGER aux.tr1;
+  }
+} {}
+do_test attach3-8.2 {
+  execsql {
+    SELECT * FROM aux.sqlite_master WHERE name = 'tr1';
+  }
+} {}
+
+ifcapable tempdb {
+  # Try to trick SQLite into dropping the wrong temp trigger.
+  do_test attach3-9.0 {
+    execsql {
+      CREATE TABLE main.t4(a, b, c);
+      CREATE TABLE aux.t4(a, b, c);
+      CREATE TEMP TRIGGER tst_trigger BEFORE INSERT ON aux.t4 BEGIN 
+        SELECT 'hello world';
+      END;
+      SELECT count(*) FROM temp.sqlite_master;
+    }
+  } {1}
+  do_test attach3-9.1 {
+    execsql {
+      DROP TABLE main.t4;
+      SELECT count(*) FROM sqlite_temp_master;
+    }
+  } {1}
+  do_test attach3-9.2 {
+    execsql {
+      DROP TABLE aux.t4;
+      SELECT count(*) FROM temp.sqlite_master;
+    }
+  } {0}
+}
+} ;# endif trigger
+
+# Make sure the aux.sqlite_master table is read-only
+do_test attach3-10.0 {
+  catchsql {
+    INSERT INTO aux.sqlite_master VALUES(1, 2, 3, 4, 5);
+  }
+} {1 {table sqlite_master may not be modified}}
+
+# Failure to attach leaves us in a workable state.
+# Ticket #811
+#
+do_test attach3-11.0 {
+  catchsql {
+    ATTACH DATABASE '/nodir/nofile.x' AS notadb;
+  }
+} {1 {unable to open database: /nodir/nofile.x}}
+do_test attach3-11.1 {
+  catchsql {
+    ATTACH DATABASE ':memory:' AS notadb;
+  }
+} {0 {}}
+do_test attach3-11.2 {
+  catchsql {
+    DETACH DATABASE notadb;
+  }
+} {0 {}}
+
+# Return a list of attached databases
+#
+proc db_list {} {
+  set x [execsql {
+    PRAGMA database_list;
+  }]
+  set y {}
+  foreach {n id file} $x {lappend y $id}
+  return $y
+}
+
+ifcapable schema_pragmas&&tempdb {
+
+ifcapable !trigger {
+  execsql {create temp table dummy(dummy)}
+}
+
+# Ticket #1825
+#
+do_test attach3-12.1 {
+  db_list
+} {main temp aux}
+do_test attach3-12.2 {
+  execsql {
+    ATTACH DATABASE ? AS ?
+  }
+  db_list
+} {main temp aux {}}
+do_test attach3-12.3 {
+  execsql {
+    DETACH aux
+  }
+  db_list
+} {main temp {}}
+do_test attach3-12.4 {
+  execsql {
+    DETACH ?
+  }
+  db_list
+} {main temp}
+do_test attach3-12.5 {
+  execsql {
+    ATTACH DATABASE '' AS ''
+  }
+  db_list
+} {main temp {}}
+do_test attach3-12.6 {
+  execsql {
+    DETACH ''
+  }
+  db_list
+} {main temp}
+do_test attach3-12.7 {
+  execsql {
+    ATTACH DATABASE '' AS ?
+  }
+  db_list
+} {main temp {}}
+do_test attach3-12.8 {
+  execsql {
+    DETACH ''
+  }
+  db_list
+} {main temp}
+do_test attach3-12.9 {
+  execsql {
+    ATTACH DATABASE '' AS NULL
+  }
+  db_list
+} {main temp {}}
+do_test attach3-12.10 {
+  execsql {
+    DETACH ?
+  }
+  db_list
+} {main temp}
+do_test attach3-12.11 {
+  catchsql {
+    DETACH NULL
+  }
+} {1 {no such database: }}
+do_test attach3-12.12 {
+  catchsql {
+    ATTACH null AS null;
+    ATTACH '' AS '';
+  }
+} {1 {database  is already in use}}
+do_test attach3-12.13 {
+  db_list
+} {main temp {}}
+do_test attach3-12.14 {
+  execsql {
+    DETACH '';
+  }
+  db_list
+} {main temp}
+
+} ;# ifcapable pragma
+
+finish_test
diff --git a/test/attach4.test b/test/attach4.test
new file mode 100644
index 0000000000000000000000000000000000000000..9d54e7df5723ae4622127f14c5ad8e9f5f676e8b
--- /dev/null
+++ b/test/attach4.test
@@ -0,0 +1,137 @@
+# 200 July 1
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is attaching many database files to a single
+# connection.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+set testprefix attach4
+
+ifcapable !attach {
+  finish_test
+  return
+}
+
+puts "Testing with SQLITE_MAX_ATTACHED=$SQLITE_MAX_ATTACHED"
+
+set files {main test.db}
+for {set ii 0} {$ii < $SQLITE_MAX_ATTACHED} {incr ii} {
+  lappend files aux$ii "test.db$ii"
+}
+
+do_test 1.1 {
+  sqlite3_limit db SQLITE_LIMIT_ATTACHED -1
+} $SQLITE_MAX_ATTACHED
+
+do_test 1.2.1 {
+  db close
+  foreach {name f} $files { forcedelete $f }
+  sqlite3 db test.db
+  
+  foreach {name f} $files {
+    if {$name == "main"} continue
+    execsql "ATTACH '$f' AS $name"
+  }
+
+  db eval {PRAGMA database_list} {
+    lappend L $name [file tail $file]
+  }
+  set L
+} $files
+
+do_catchsql_test 1.2.2 {
+  ATTACH 'x.db' AS next;
+} [list 1 "too many attached databases - max $SQLITE_MAX_ATTACHED"]
+
+do_test 1.3 {
+  execsql BEGIN;
+  foreach {name f} $files {
+    execsql "CREATE TABLE $name.tbl(x)"
+    execsql "INSERT INTO $name.tbl VALUES('$f')"
+  }
+  execsql COMMIT;
+} {}
+
+do_test 1.4 {
+  set L [list]
+  foreach {name f} $files {
+    lappend L $name [execsql "SELECT x FROM $name.tbl"]
+  }
+  set L
+} $files
+
+set L [list]
+set S ""
+foreach {name f} $files {
+  if {[permutation] == "journaltest"} {
+    set mode delete
+  } else {
+    set mode wal
+  }
+  ifcapable !wal { set mode delete }
+  lappend L $mode
+  append S "
+    PRAGMA $name.journal_mode = WAL;
+    UPDATE $name.tbl SET x = '$name';
+  "
+}
+do_execsql_test 1.5 $S $L
+
+do_test 1.6 {
+  set L [list]
+  foreach {name f} $files {
+    lappend L [execsql "SELECT x FROM $name.tbl"] $f
+  }
+  set L
+} $files
+
+do_test 1.7 {
+  execsql BEGIN;
+  foreach {name f} $files {
+    execsql "UPDATE $name.tbl SET x = '$f'"
+  }
+  execsql COMMIT;
+} {}
+
+do_test 1.8 {
+  set L [list]
+  foreach {name f} $files {
+    lappend L $name [execsql "SELECT x FROM $name.tbl"]
+  }
+  set L
+} $files
+
+db close
+foreach {name f} $files { forcedelete $f }
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 2.0 {
+  ATTACH DATABASE '' AS aux;
+  CREATE TABLE IF NOT EXISTS aux.t1(a, b);
+  CREATE TEMPORARY TRIGGER tr1 DELETE ON t1 BEGIN 
+    DELETE FROM t1; 
+  END;
+  CREATE TABLE temp.t1(a, b);
+}
+
+do_execsql_test 2.1 {
+  DETACH DATABASE aux;
+}
+
+do_execsql_test 2.2 {
+  DROP TRIGGER tr1;
+}
+
+finish_test
diff --git a/test/attachmalloc.test b/test/attachmalloc.test
new file mode 100644
index 0000000000000000000000000000000000000000..3c6a075b43bbc2a9b32def3f233b7289257382bb
--- /dev/null
+++ b/test/attachmalloc.test
@@ -0,0 +1,78 @@
+# 2005 September 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the ATTACH statement and
+# specifically out-of-memory conditions within that command.
+#
+# $Id: attachmalloc.test,v 1.10 2008/10/22 10:45:38 danielk1977 Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !attach {
+  finish_test
+  return
+}
+
+source $testdir/malloc_common.tcl
+
+do_malloc_test attachmalloc-1 -tclprep {
+  catch { db close }
+  for {set i 2} {$i<=4} {incr i} {
+    catch { db$i close }
+    forcedelete test$i.db
+    forcedelete test$i.db-journal
+  }
+} -tclbody {
+  if {[catch {sqlite3 db test.db}]} {
+    error "out of memory"
+  }
+  sqlite3_db_config_lookaside db 0 0 0
+  sqlite3_extended_result_codes db 1
+} -sqlbody {
+  ATTACH 'test2.db' AS two;
+  CREATE TABLE two.t1(x);
+  ATTACH 'test3.db' AS three;
+  CREATE TABLE three.t1(x);
+  ATTACH 'test4.db' AS four;
+  CREATE TABLE four.t1(x);
+}
+
+do_malloc_test attachmalloc-2 -tclprep {
+  forcedelete test2.db
+  forcedelete test2.db-journal
+  sqlite3 db2 test2.db
+  db2 eval {
+    CREATE TABLE t1(a, b, c);
+    CREATE INDEX i1 ON t1(a, b);
+  }
+  db2 close
+} -sqlbody {
+  CREATE TABLE t1(d, e, f);
+  ATTACH 'test2.db' AS db1;
+}
+
+ifcapable shared_cache {
+  set enable_shared_cache [sqlite3_enable_shared_cache 1]
+  sqlite3 dbaux test3.db
+  dbaux eval {SELECT * FROM sqlite_master}
+  do_malloc_test attachmalloc-3 -sqlbody {
+    SELECT * FROM sqlite_master;
+    ATTACH 'test3.db' AS three;
+  } -cleanup {
+    db eval { DETACH three }
+  }
+  dbaux close
+  sqlite3_enable_shared_cache $enable_shared_cache
+}
+
+finish_test
diff --git a/test/auth.test b/test/auth.test
new file mode 100644
index 0000000000000000000000000000000000000000..1d56f70343563f026fc0d7d87b4ea57f107ed6a1
--- /dev/null
+++ b/test/auth.test
@@ -0,0 +1,2678 @@
+# 2003 April 4
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the sqlite3_set_authorizer() API
+# and related functionality.
+#
+# $Id: auth.test,v 1.46 2009/07/02 18:40:35 danielk1977 Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# disable this test if the SQLITE_OMIT_AUTHORIZATION macro is
+# defined during compilation.
+if {[catch {db auth {}} msg]} {
+  finish_test
+  return
+}
+
+rename proc proc_real
+proc_real proc {name arguments script} {
+  proc_real $name $arguments $script
+  if {$name=="auth"} {
+    db authorizer ::auth
+  }
+}
+
+do_test auth-1.1.1 {
+  db close
+  set ::DB [sqlite3 db test.db]
+  proc authx {code arg1 arg2 arg3 arg4 args} {return SQLITE_DENY}
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_INSERT" && $arg1=="sqlite_master"} {
+      return SQLITE_DENY
+    }
+    return SQLITE_OK
+  }
+  db authorizer ::authx
+  # EVIDENCE-OF: R-03993-24285 Only a single authorizer can be in place on
+  # a database connection at a time. Each call to sqlite3_set_authorizer
+  # overrides the previous call.
+  #
+  # The authx authorizer above is overridden by the auth authorizer below
+  # authx is never invoked.
+  db authorizer ::auth
+  catchsql {CREATE TABLE t1(a,b,c)}
+} {1 {not authorized}}
+do_test auth-1.1.2 {
+  db errorcode
+} {23}
+do_test auth-1.1.3 {
+  db authorizer
+} {::auth}
+do_test auth-1.1.4 {
+  # Ticket #896.
+  catchsql {
+    SELECT x;
+  }
+} {1 {no such column: x}}
+do_test auth-1.2 {
+  execsql {SELECT name FROM sqlite_master}
+} {}
+# EVIDENCE-OF: R-04452-49349 When the callback returns SQLITE_DENY, the
+# sqlite3_prepare_v2() or equivalent call that triggered the authorizer
+# will fail with an error message explaining that access is denied.
+do_test auth-1.3.1 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_CREATE_TABLE"} {
+      set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+      return SQLITE_DENY
+    }
+    return SQLITE_OK
+  }
+  catchsql {CREATE TABLE t1(a,b,c)}
+} {1 {not authorized}}
+do_test auth-1.3.2 {
+  db errorcode
+} {23}
+do_test auth-1.3.3 {
+  set ::authargs
+} {t1 {} main {}}
+do_test auth-1.4 {
+  execsql {SELECT name FROM sqlite_master}
+} {}
+
+ifcapable tempdb {
+  do_test auth-1.5 {
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      if {$code=="SQLITE_INSERT" && $arg1=="sqlite_temp_master"} {
+        return SQLITE_DENY
+      }
+      return SQLITE_OK
+    }
+    catchsql {CREATE TEMP TABLE t1(a,b,c)}
+  } {1 {not authorized}}
+  do_test auth-1.6 {
+    execsql {SELECT name FROM temp.sqlite_master}
+  } {}
+  do_test auth-1.7.1 {
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      if {$code=="SQLITE_CREATE_TEMP_TABLE"} {
+        set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+        return SQLITE_DENY
+      }
+      return SQLITE_OK
+    }
+    catchsql {CREATE TEMP TABLE t1(a,b,c)}
+  } {1 {not authorized}}
+  do_test auth-1.7.2 {
+     set ::authargs
+  } {t1 {} temp {}}
+  do_test auth-1.8 {
+    execsql {SELECT name FROM sqlite_temp_master}
+  } {}
+}
+
+do_test auth-1.9 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_INSERT" && $arg1=="sqlite_master"} {
+      return SQLITE_IGNORE
+    }
+    return SQLITE_OK
+  }
+  catchsql {CREATE TABLE t1(a,b,c)}
+} {0 {}}
+do_test auth-1.10 {
+  execsql {SELECT name FROM sqlite_master}
+} {}
+do_test auth-1.11 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_CREATE_TABLE"} {
+      set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+      return SQLITE_IGNORE
+    }
+    return SQLITE_OK
+  }
+  catchsql {CREATE TABLE t1(a,b,c)}
+} {0 {}}
+do_test auth-1.12 {
+  execsql {SELECT name FROM sqlite_master}
+} {}
+
+ifcapable tempdb {
+  do_test auth-1.13 {
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      if {$code=="SQLITE_INSERT" && $arg1=="sqlite_temp_master"} {
+        return SQLITE_IGNORE
+      }
+      return SQLITE_OK
+    }
+    catchsql {CREATE TEMP TABLE t1(a,b,c)}
+  } {0 {}}
+  do_test auth-1.14 {
+    execsql {SELECT name FROM temp.sqlite_master}
+  } {}
+  do_test auth-1.15 {
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      if {$code=="SQLITE_CREATE_TEMP_TABLE"} {
+        set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+        return SQLITE_IGNORE
+      }
+      return SQLITE_OK
+    }
+    catchsql {CREATE TEMP TABLE t1(a,b,c)}
+  } {0 {}}
+  do_test auth-1.16 {
+    execsql {SELECT name FROM sqlite_temp_master}
+  } {}
+  
+  do_test auth-1.17 {
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      if {$code=="SQLITE_CREATE_TABLE"} {
+        set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+        return SQLITE_DENY
+      }
+      return SQLITE_OK
+    }
+    catchsql {CREATE TEMP TABLE t1(a,b,c)}
+  } {0 {}}
+  do_test auth-1.18 {
+    execsql {SELECT name FROM sqlite_temp_master}
+  } {t1}
+}
+
+do_test auth-1.19.1 {
+  set ::authargs {}
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_CREATE_TEMP_TABLE"} {
+      set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+      return SQLITE_DENY
+    }
+    return SQLITE_OK
+  }
+  catchsql {CREATE TABLE t2(a,b,c)}
+} {0 {}}
+do_test auth-1.19.2 {
+  set ::authargs
+} {}
+do_test auth-1.20 {
+  execsql {SELECT name FROM sqlite_master}
+} {t2}
+
+do_test auth-1.21.1 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_DROP_TABLE"} {
+      set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+      return SQLITE_DENY
+    }
+    return SQLITE_OK
+  }
+  catchsql {DROP TABLE t2}
+} {1 {not authorized}}
+do_test auth-1.21.2 {
+  set ::authargs
+} {t2 {} main {}}
+do_test auth-1.22 {
+  execsql {SELECT name FROM sqlite_master}
+} {t2}
+do_test auth-1.23.1 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_DROP_TABLE"} {
+      set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+      return SQLITE_IGNORE
+    }
+    return SQLITE_OK
+  }
+  catchsql {DROP TABLE t2}
+} {0 {}}
+do_test auth-1.23.2 {
+  set ::authargs
+} {t2 {} main {}}
+do_test auth-1.24 {
+  execsql {SELECT name FROM sqlite_master}
+} {t2}
+
+ifcapable tempdb {
+  do_test auth-1.25 {
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      if {$code=="SQLITE_DROP_TEMP_TABLE"} {
+        set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+        return SQLITE_DENY
+      }
+      return SQLITE_OK
+    }
+    catchsql {DROP TABLE t1}
+  } {1 {not authorized}}
+  do_test auth-1.26 {
+    execsql {SELECT name FROM sqlite_temp_master}
+  } {t1}
+  do_test auth-1.27 {
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      if {$code=="SQLITE_DROP_TEMP_TABLE"} {
+        set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+        return SQLITE_IGNORE
+      }
+      return SQLITE_OK
+    }
+    catchsql {DROP TABLE t1}
+  } {0 {}}
+  do_test auth-1.28 {
+    execsql {SELECT name FROM sqlite_temp_master}
+  } {t1}
+}
+
+do_test auth-1.29 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_INSERT" && $arg1=="t2"} {
+      return SQLITE_DENY
+    }
+    return SQLITE_OK
+  }
+  catchsql {INSERT INTO t2 VALUES(1,2,3)}
+} {1 {not authorized}}
+do_test auth-1.30 {
+  execsql {SELECT * FROM t2}
+} {}
+do_test auth-1.31 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_INSERT" && $arg1=="t2"} {
+      return SQLITE_IGNORE
+    }
+    return SQLITE_OK
+  }
+  catchsql {INSERT INTO t2 VALUES(1,2,3)}
+} {0 {}}
+do_test auth-1.32 {
+  execsql {SELECT * FROM t2}
+} {}
+do_test auth-1.33 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_INSERT" && $arg1=="t1"} {
+      return SQLITE_IGNORE
+    }
+    return SQLITE_OK
+  }
+  catchsql {INSERT INTO t2 VALUES(1,2,3)}
+} {0 {}}
+do_test auth-1.34 {
+  execsql {SELECT * FROM t2}
+} {1 2 3}
+
+do_test auth-1.35.1 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_READ" && $arg1=="t2" && $arg2=="b"} {
+      return SQLITE_DENY
+    }
+    return SQLITE_OK
+  }
+  catchsql {SELECT * FROM t2}
+} {1 {access to t2.b is prohibited}}
+ifcapable attach {
+  do_test auth-1.35.2 {
+    execsql {ATTACH DATABASE 'test.db' AS two}
+    catchsql {SELECT * FROM two.t2}
+  } {1 {access to two.t2.b is prohibited}}
+  execsql {DETACH DATABASE two}
+}
+# EVIDENCE-OF: R-38392-49970 If the action code is SQLITE_READ and the
+# callback returns SQLITE_IGNORE then the prepared statement statement
+# is constructed to substitute a NULL value in place of the table column
+# that would have been read if SQLITE_OK had been returned.
+do_test auth-1.36 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_READ" && $arg1=="t2" && $arg2=="b"} {
+      return SQLITE_IGNORE
+    }
+    return SQLITE_OK
+  }
+  catchsql {SELECT * FROM t2}
+} {0 {1 {} 3}}
+do_test auth-1.37 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_READ" && $arg1=="t2" && $arg2=="b"} {
+      return SQLITE_IGNORE
+    }
+    return SQLITE_OK
+  }
+  catchsql {SELECT * FROM t2 WHERE b=2}
+} {0 {}}
+do_test auth-1.38 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_READ" && $arg1=="t2" && $arg2=="a"} {
+      return SQLITE_IGNORE
+    }
+    return SQLITE_OK
+  }
+  catchsql {SELECT * FROM t2 WHERE b=2}
+} {0 {{} 2 3}}
+do_test auth-1.39 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_READ" && $arg1=="t2" && $arg2=="b"} {
+      return SQLITE_IGNORE
+    }
+    return SQLITE_OK
+  }
+  catchsql {SELECT * FROM t2 WHERE b IS NULL}
+} {0 {1 {} 3}}
+do_test auth-1.40 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_READ" && $arg1=="t2" && $arg2=="b"} {
+      return SQLITE_DENY
+    }
+    return SQLITE_OK
+  }
+  catchsql {SELECT a,c FROM t2 WHERE b IS NULL}
+} {1 {access to t2.b is prohibited}}
+  
+do_test auth-1.41 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_UPDATE" && $arg1=="t2" && $arg2=="b"} {
+      return SQLITE_DENY
+    }
+    return SQLITE_OK
+  }
+  catchsql {UPDATE t2 SET a=11}
+} {0 {}}
+do_test auth-1.42 {
+  execsql {SELECT * FROM t2}
+} {11 2 3}
+do_test auth-1.43 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_UPDATE" && $arg1=="t2" && $arg2=="b"} {
+      return SQLITE_DENY
+    }
+    return SQLITE_OK
+  }
+  catchsql {UPDATE t2 SET b=22, c=33}
+} {1 {not authorized}}
+do_test auth-1.44 {
+  execsql {SELECT * FROM t2}
+} {11 2 3}
+do_test auth-1.45 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_UPDATE" && $arg1=="t2" && $arg2=="b"} {
+      return SQLITE_IGNORE
+    }
+    return SQLITE_OK
+  }
+  catchsql {UPDATE t2 SET b=22, c=33}
+} {0 {}}
+do_test auth-1.46 {
+  execsql {SELECT * FROM t2}
+} {11 2 33}
+
+do_test auth-1.47 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_DELETE" && $arg1=="t2"} {
+      return SQLITE_DENY
+    }
+    return SQLITE_OK
+  }
+  catchsql {DELETE FROM t2 WHERE a=11}
+} {1 {not authorized}}
+do_test auth-1.48 {
+  execsql {SELECT * FROM t2}
+} {11 2 33}
+do_test auth-1.49 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_DELETE" && $arg1=="t2"} {
+      return SQLITE_IGNORE
+    }
+    return SQLITE_OK
+  }
+  catchsql {DELETE FROM t2 WHERE a=11}
+} {0 {}}
+do_test auth-1.50 {
+  execsql {SELECT * FROM t2}
+} {}
+do_test auth-1.50.2 {
+  execsql {INSERT INTO t2 VALUES(11, 2, 33)}
+} {}
+
+do_test auth-1.51 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_SELECT"} {
+      return SQLITE_DENY
+    }
+    return SQLITE_OK
+  }
+  catchsql {SELECT * FROM t2}
+} {1 {not authorized}}
+do_test auth-1.52 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_SELECT"} {
+      return SQLITE_IGNORE
+    }
+    return SQLITE_OK
+  }
+  catchsql {SELECT * FROM t2}
+} {0 {}}
+do_test auth-1.53 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_SELECT"} {
+      return SQLITE_OK
+    }
+    return SQLITE_OK
+  }
+  catchsql {SELECT * FROM t2}
+} {0 {11 2 33}}
+
+# Update for version 3: There used to be a handful of test here that
+# tested the authorisation callback with the COPY command. The following
+# test makes the same database modifications as they used to.
+do_test auth-1.54 {
+  execsql {INSERT INTO t2 VALUES(7, 8, 9);}
+} {}
+do_test auth-1.55 {
+  execsql {SELECT * FROM t2}
+} {11 2 33 7 8 9}
+
+do_test auth-1.63 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_DELETE" && $arg1=="sqlite_master"} {
+       return SQLITE_DENY
+    }
+    return SQLITE_OK
+  }
+  catchsql {DROP TABLE t2}
+} {1 {not authorized}}
+do_test auth-1.64 {
+  execsql {SELECT name FROM sqlite_master}
+} {t2}
+do_test auth-1.65 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_DELETE" && $arg1=="t2"} {
+       return SQLITE_DENY
+    }
+    return SQLITE_OK
+  }
+  catchsql {DROP TABLE t2}
+} {1 {not authorized}}
+do_test auth-1.66 {
+  execsql {SELECT name FROM sqlite_master}
+} {t2}
+
+ifcapable tempdb {
+  do_test auth-1.67 {
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      if {$code=="SQLITE_DELETE" && $arg1=="sqlite_temp_master"} {
+         return SQLITE_DENY
+      }
+      return SQLITE_OK
+    }
+    catchsql {DROP TABLE t1}
+  } {1 {not authorized}}
+  do_test auth-1.68 {
+    execsql {SELECT name FROM sqlite_temp_master}
+  } {t1}
+  do_test auth-1.69 {
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      if {$code=="SQLITE_DELETE" && $arg1=="t1"} {
+         return SQLITE_DENY
+      }
+      return SQLITE_OK
+    }
+    catchsql {DROP TABLE t1}
+  } {1 {not authorized}}
+  do_test auth-1.70 {
+    execsql {SELECT name FROM sqlite_temp_master}
+  } {t1}
+}
+
+do_test auth-1.71 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_DELETE" && $arg1=="sqlite_master"} {
+       return SQLITE_IGNORE
+    }
+    return SQLITE_OK
+  }
+  catchsql {DROP TABLE t2}
+} {0 {}}
+do_test auth-1.72 {
+  execsql {SELECT name FROM sqlite_master}
+} {t2}
+do_test auth-1.73 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_DELETE" && $arg1=="t2"} {
+       return SQLITE_IGNORE
+    }
+    return SQLITE_OK
+  }
+  catchsql {DROP TABLE t2}
+} {0 {}}
+do_test auth-1.74 {
+  execsql {SELECT name FROM sqlite_master}
+} {t2}
+
+ifcapable tempdb {
+  do_test auth-1.75 {
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      if {$code=="SQLITE_DELETE" && $arg1=="sqlite_temp_master"} {
+         return SQLITE_IGNORE
+      }
+      return SQLITE_OK
+    }
+    catchsql {DROP TABLE t1}
+  } {0 {}}
+  do_test auth-1.76 {
+    execsql {SELECT name FROM sqlite_temp_master}
+  } {t1}
+  do_test auth-1.77 {
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      if {$code=="SQLITE_DELETE" && $arg1=="t1"} {
+         return SQLITE_IGNORE
+      }
+      return SQLITE_OK
+    }
+    catchsql {DROP TABLE t1}
+  } {0 {}}
+  do_test auth-1.78 {
+    execsql {SELECT name FROM temp.sqlite_master}
+  } {t1}
+}
+
+# Test cases auth-1.79 to auth-1.124 test creating and dropping views.
+# Omit these if the library was compiled with views omitted.
+ifcapable view {
+do_test auth-1.79 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_CREATE_VIEW"} {
+      set ::authargs [list $arg1 $arg2 $arg3 $arg4] 
+      return SQLITE_DENY
+    }
+    return SQLITE_OK
+  }
+  catchsql {CREATE VIEW v1 AS SELECT a+1,b+1 FROM t2}
+} {1 {not authorized}}
+do_test auth-1.80 {
+  set ::authargs
+} {v1 {} main {}}
+do_test auth-1.81 {
+  execsql {SELECT name FROM sqlite_master}
+} {t2}
+do_test auth-1.82 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_CREATE_VIEW"} {
+      set ::authargs [list $arg1 $arg2 $arg3 $arg4] 
+      return SQLITE_IGNORE
+    }
+    return SQLITE_OK
+  }
+  catchsql {CREATE VIEW v1 AS SELECT a+1,b+1 FROM t2}
+} {0 {}}
+do_test auth-1.83 {
+  set ::authargs
+} {v1 {} main {}}
+do_test auth-1.84 {
+  execsql {SELECT name FROM sqlite_master}
+} {t2}
+
+ifcapable tempdb {
+  do_test auth-1.85 {
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      if {$code=="SQLITE_CREATE_TEMP_VIEW"} {
+        set ::authargs [list $arg1 $arg2 $arg3 $arg4] 
+        return SQLITE_DENY
+      }
+      return SQLITE_OK
+    }
+    catchsql {CREATE TEMPORARY VIEW v1 AS SELECT a+1,b+1 FROM t2}
+  } {1 {not authorized}}
+  do_test auth-1.86 {
+    set ::authargs
+  } {v1 {} temp {}}
+  do_test auth-1.87 {
+    execsql {SELECT name FROM sqlite_temp_master}
+  } {t1}
+  do_test auth-1.88 {
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      if {$code=="SQLITE_CREATE_TEMP_VIEW"} {
+        set ::authargs [list $arg1 $arg2 $arg3 $arg4] 
+        return SQLITE_IGNORE
+      }
+      return SQLITE_OK
+    }
+    catchsql {CREATE TEMPORARY VIEW v1 AS SELECT a+1,b+1 FROM t2}
+  } {0 {}}
+  do_test auth-1.89 {
+    set ::authargs
+  } {v1 {} temp {}}
+  do_test auth-1.90 {
+    execsql {SELECT name FROM temp.sqlite_master}
+  } {t1}
+}
+
+do_test auth-1.91 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_INSERT" && $arg1=="sqlite_master"} {
+      return SQLITE_DENY
+    }
+    return SQLITE_OK
+  }
+  catchsql {CREATE VIEW v1 AS SELECT a+1,b+1 FROM t2}
+} {1 {not authorized}}
+do_test auth-1.92 {
+  execsql {SELECT name FROM sqlite_master}
+} {t2}
+do_test auth-1.93 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_INSERT" && $arg1=="sqlite_master"} {
+      return SQLITE_IGNORE
+    }
+    return SQLITE_OK
+  }
+  catchsql {CREATE VIEW v1 AS SELECT a+1,b+1 FROM t2}
+} {0 {}}
+do_test auth-1.94 {
+  execsql {SELECT name FROM sqlite_master}
+} {t2}
+
+ifcapable tempdb {
+  do_test auth-1.95 {
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      if {$code=="SQLITE_INSERT" && $arg1=="sqlite_temp_master"} {
+        return SQLITE_DENY
+      }
+      return SQLITE_OK
+    }
+    catchsql {CREATE TEMPORARY VIEW v1 AS SELECT a+1,b+1 FROM t2}
+  } {1 {not authorized}}
+  do_test auth-1.96 {
+    execsql {SELECT name FROM sqlite_temp_master}
+  } {t1}
+  do_test auth-1.97 {
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      if {$code=="SQLITE_INSERT" && $arg1=="sqlite_temp_master"} {
+        return SQLITE_IGNORE
+      }
+      return SQLITE_OK
+    }
+    catchsql {CREATE TEMPORARY VIEW v1 AS SELECT a+1,b+1 FROM t2}
+  } {0 {}}
+  do_test auth-1.98 {
+    execsql {SELECT name FROM sqlite_temp_master}
+  } {t1}
+}
+
+do_test auth-1.99 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_DELETE" && $arg1=="sqlite_master"} {
+      return SQLITE_DENY
+    }
+    return SQLITE_OK
+  }
+  catchsql {
+    CREATE VIEW v2 AS SELECT a+1,b+1 FROM t2;
+    DROP VIEW v2
+  }
+} {1 {not authorized}}
+do_test auth-1.100 {
+  execsql {SELECT name FROM sqlite_master}
+} {t2 v2}
+do_test auth-1.101 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_DROP_VIEW"} {
+      set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+      return SQLITE_DENY
+    }
+    return SQLITE_OK
+  }
+  catchsql {DROP VIEW v2}
+} {1 {not authorized}}
+do_test auth-1.102 {
+  set ::authargs
+} {v2 {} main {}}
+do_test auth-1.103 {
+  execsql {SELECT name FROM sqlite_master}
+} {t2 v2}
+do_test auth-1.104 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_DELETE" && $arg1=="sqlite_master"} {
+      return SQLITE_IGNORE
+    }
+    return SQLITE_OK
+  }
+  catchsql {DROP VIEW v2}
+} {0 {}}
+do_test auth-1.105 {
+  execsql {SELECT name FROM sqlite_master}
+} {t2 v2}
+do_test auth-1.106 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_DROP_VIEW"} {
+      set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+      return SQLITE_IGNORE
+    }
+    return SQLITE_OK
+  }
+  catchsql {DROP VIEW v2}
+} {0 {}}
+do_test auth-1.107 {
+  set ::authargs
+} {v2 {} main {}}
+do_test auth-1.108 {
+  execsql {SELECT name FROM sqlite_master}
+} {t2 v2}
+do_test auth-1.109 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_DROP_VIEW"} {
+      set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+      return SQLITE_OK
+    }
+    return SQLITE_OK
+  }
+  catchsql {DROP VIEW v2}
+} {0 {}}
+do_test auth-1.110 {
+  set ::authargs
+} {v2 {} main {}}
+do_test auth-1.111 {
+  execsql {SELECT name FROM sqlite_master}
+} {t2}
+
+
+ifcapable tempdb {
+  do_test auth-1.112 {
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      if {$code=="SQLITE_DELETE" && $arg1=="sqlite_temp_master"} {
+        return SQLITE_DENY
+      }
+      return SQLITE_OK
+    }
+    catchsql {
+      CREATE TEMP VIEW v1 AS SELECT a+1,b+1 FROM t1;
+      DROP VIEW v1
+    }
+  } {1 {not authorized}}
+  do_test auth-1.113 {
+    execsql {SELECT name FROM temp.sqlite_master}
+  } {t1 v1}
+  do_test auth-1.114 {
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      if {$code=="SQLITE_DROP_TEMP_VIEW"} {
+        set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+        return SQLITE_DENY
+      }
+      return SQLITE_OK
+    }
+    catchsql {DROP VIEW v1}
+  } {1 {not authorized}}
+  do_test auth-1.115 {
+    set ::authargs
+  } {v1 {} temp {}}
+  do_test auth-1.116 {
+    execsql {SELECT name FROM sqlite_temp_master}
+  } {t1 v1}
+  do_test auth-1.117 {
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      if {$code=="SQLITE_DELETE" && $arg1=="sqlite_temp_master"} {
+        return SQLITE_IGNORE
+      }
+      return SQLITE_OK
+    }
+    catchsql {DROP VIEW v1}
+  } {0 {}}
+  do_test auth-1.118 {
+    execsql {SELECT name FROM sqlite_temp_master}
+  } {t1 v1}
+  do_test auth-1.119 {
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      if {$code=="SQLITE_DROP_TEMP_VIEW"} {
+        set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+        return SQLITE_IGNORE
+      }
+      return SQLITE_OK
+    }
+    catchsql {DROP VIEW v1}
+  } {0 {}}
+  do_test auth-1.120 {
+    set ::authargs
+  } {v1 {} temp {}}
+  do_test auth-1.121 {
+    execsql {SELECT name FROM temp.sqlite_master}
+  } {t1 v1}
+  do_test auth-1.122 {
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      if {$code=="SQLITE_DROP_TEMP_VIEW"} {
+        set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+        return SQLITE_OK
+      }
+      return SQLITE_OK
+    }
+    catchsql {DROP VIEW v1}
+  } {0 {}}
+  do_test auth-1.123 {
+    set ::authargs
+  } {v1 {} temp {}}
+  do_test auth-1.124 {
+    execsql {SELECT name FROM sqlite_temp_master}
+  } {t1}
+}
+} ;# ifcapable view
+
+# Test cases auth-1.125 to auth-1.176 test creating and dropping triggers.
+# Omit these if the library was compiled with triggers omitted.
+#
+ifcapable trigger&&tempdb {
+do_test auth-1.125 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_CREATE_TRIGGER"} {
+      set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+      return SQLITE_DENY
+    }
+    return SQLITE_OK
+  }
+  catchsql {
+    CREATE TRIGGER r2 DELETE on t2 BEGIN
+        SELECT NULL;
+    END;
+  }
+} {1 {not authorized}}
+do_test auth-1.126 {
+  set ::authargs
+} {r2 t2 main {}}
+do_test auth-1.127 {
+  execsql {SELECT name FROM sqlite_master}
+} {t2}
+do_test auth-1.128 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_INSERT" && $arg1=="sqlite_master"} {
+      return SQLITE_DENY
+    }
+    return SQLITE_OK
+  }
+  catchsql {
+    CREATE TRIGGER r2 DELETE on t2 BEGIN
+        SELECT NULL;
+    END;
+  }
+} {1 {not authorized}}
+do_test auth-1.129 {
+  execsql {SELECT name FROM sqlite_master}
+} {t2}
+do_test auth-1.130 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_CREATE_TRIGGER"} {
+      set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+      return SQLITE_IGNORE
+    }
+    return SQLITE_OK
+  }
+  catchsql {
+    CREATE TRIGGER r2 DELETE on t2 BEGIN
+        SELECT NULL;
+    END;
+  }
+} {0 {}}
+do_test auth-1.131 {
+  set ::authargs
+} {r2 t2 main {}}
+do_test auth-1.132 {
+  execsql {SELECT name FROM sqlite_master}
+} {t2}
+do_test auth-1.133 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_INSERT" && $arg1=="sqlite_master"} {
+      return SQLITE_IGNORE
+    }
+    return SQLITE_OK
+  }
+  catchsql {
+    CREATE TRIGGER r2 DELETE on t2 BEGIN
+        SELECT NULL;
+    END;
+  }
+} {0 {}}
+do_test auth-1.134 {
+  execsql {SELECT name FROM sqlite_master}
+} {t2}
+do_test auth-1.135 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_CREATE_TRIGGER"} {
+      set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+      return SQLITE_OK
+    }
+    return SQLITE_OK
+  }
+  catchsql {
+    CREATE TABLE tx(id);
+    CREATE TRIGGER r2 AFTER INSERT ON t2 BEGIN
+       INSERT INTO tx VALUES(NEW.rowid);
+    END;
+  }
+} {0 {}}
+do_test auth-1.136.1 {
+  set ::authargs
+} {r2 t2 main {}}
+do_test auth-1.136.2 {
+  execsql {
+    SELECT name FROM sqlite_master WHERE type='trigger'
+  }
+} {r2}
+do_test auth-1.136.3 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    lappend ::authargs $code $arg1 $arg2 $arg3 $arg4
+    return SQLITE_OK
+  }
+  set ::authargs {}
+  execsql {
+    INSERT INTO t2 VALUES(1,2,3);
+  }
+  set ::authargs 
+} {SQLITE_INSERT t2 {} main {} SQLITE_INSERT tx {} main r2 SQLITE_READ t2 ROWID main r2}
+do_test auth-1.136.4 {
+  execsql {
+    SELECT * FROM tx;
+  }
+} {3}
+do_test auth-1.137 {
+  execsql {SELECT name FROM sqlite_master}
+} {t2 tx r2}
+do_test auth-1.138 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_CREATE_TEMP_TRIGGER"} {
+      set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+      return SQLITE_DENY
+    }
+    return SQLITE_OK
+  }
+  catchsql {
+    CREATE TRIGGER r1 DELETE on t1 BEGIN
+        SELECT NULL;
+    END;
+  }
+} {1 {not authorized}}
+do_test auth-1.139 {
+  set ::authargs
+} {r1 t1 temp {}}
+do_test auth-1.140 {
+  execsql {SELECT name FROM temp.sqlite_master}
+} {t1}
+do_test auth-1.141 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_INSERT" && $arg1=="sqlite_temp_master"} {
+      return SQLITE_DENY
+    }
+    return SQLITE_OK
+  }
+  catchsql {
+    CREATE TRIGGER r1 DELETE on t1 BEGIN
+        SELECT NULL;
+    END;
+  }
+} {1 {not authorized}}
+do_test auth-1.142 {
+  execsql {SELECT name FROM sqlite_temp_master}
+} {t1}
+do_test auth-1.143 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_CREATE_TEMP_TRIGGER"} {
+      set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+      return SQLITE_IGNORE
+    }
+    return SQLITE_OK
+  }
+  catchsql {
+    CREATE TRIGGER r1 DELETE on t1 BEGIN
+        SELECT NULL;
+    END;
+  }
+} {0 {}}
+do_test auth-1.144 {
+  set ::authargs
+} {r1 t1 temp {}}
+do_test auth-1.145 {
+  execsql {SELECT name FROM temp.sqlite_master}
+} {t1}
+do_test auth-1.146 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_INSERT" && $arg1=="sqlite_temp_master"} {
+      return SQLITE_IGNORE
+    }
+    return SQLITE_OK
+  }
+  catchsql {
+    CREATE TRIGGER r1 DELETE on t1 BEGIN
+        SELECT NULL;
+    END;
+  }
+} {0 {}}
+do_test auth-1.147 {
+  execsql {SELECT name FROM sqlite_temp_master}
+} {t1}
+do_test auth-1.148 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_CREATE_TEMP_TRIGGER"} {
+      set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+      return SQLITE_OK
+    }
+    return SQLITE_OK
+  }
+  catchsql {
+    CREATE TRIGGER r1 DELETE on t1 BEGIN
+        SELECT NULL;
+    END;
+  }
+} {0 {}}
+do_test auth-1.149 {
+  set ::authargs
+} {r1 t1 temp {}}
+do_test auth-1.150 {
+  execsql {SELECT name FROM temp.sqlite_master}
+} {t1 r1}
+
+do_test auth-1.151 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_DELETE" && $arg1=="sqlite_master"} {
+      return SQLITE_DENY
+    }
+    return SQLITE_OK
+  }
+  catchsql {DROP TRIGGER r2}
+} {1 {not authorized}}
+do_test auth-1.152 {
+  execsql {SELECT name FROM sqlite_master}
+} {t2 tx r2}
+do_test auth-1.153 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_DROP_TRIGGER"} {
+      set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+      return SQLITE_DENY
+    }
+    return SQLITE_OK
+  }
+  catchsql {DROP TRIGGER r2}
+} {1 {not authorized}}
+do_test auth-1.154 {
+  set ::authargs
+} {r2 t2 main {}}
+do_test auth-1.155 {
+  execsql {SELECT name FROM sqlite_master}
+} {t2 tx r2}
+do_test auth-1.156 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_DELETE" && $arg1=="sqlite_master"} {
+      return SQLITE_IGNORE
+    }
+    return SQLITE_OK
+  }
+  catchsql {DROP TRIGGER r2}
+} {0 {}}
+do_test auth-1.157 {
+  execsql {SELECT name FROM sqlite_master}
+} {t2 tx r2}
+do_test auth-1.158 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_DROP_TRIGGER"} {
+      set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+      return SQLITE_IGNORE
+    }
+    return SQLITE_OK
+  }
+  catchsql {DROP TRIGGER r2}
+} {0 {}}
+do_test auth-1.159 {
+  set ::authargs
+} {r2 t2 main {}}
+do_test auth-1.160 {
+  execsql {SELECT name FROM sqlite_master}
+} {t2 tx r2}
+do_test auth-1.161 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_DROP_TRIGGER"} {
+      set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+      return SQLITE_OK
+    }
+    return SQLITE_OK
+  }
+  catchsql {DROP TRIGGER r2}
+} {0 {}}
+do_test auth-1.162 {
+  set ::authargs
+} {r2 t2 main {}}
+do_test auth-1.163 {
+  execsql {
+    DROP TABLE tx;
+    DELETE FROM t2 WHERE a=1 AND b=2 AND c=3;
+    SELECT name FROM sqlite_master;
+  }
+} {t2}
+
+do_test auth-1.164 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_DELETE" && $arg1=="sqlite_temp_master"} {
+      return SQLITE_DENY
+    }
+    return SQLITE_OK
+  }
+  catchsql {DROP TRIGGER r1}
+} {1 {not authorized}}
+do_test auth-1.165 {
+  execsql {SELECT name FROM temp.sqlite_master}
+} {t1 r1}
+do_test auth-1.166 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_DROP_TEMP_TRIGGER"} {
+      set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+      return SQLITE_DENY
+    }
+    return SQLITE_OK
+  }
+  catchsql {DROP TRIGGER r1}
+} {1 {not authorized}}
+do_test auth-1.167 {
+  set ::authargs
+} {r1 t1 temp {}}
+do_test auth-1.168 {
+  execsql {SELECT name FROM sqlite_temp_master}
+} {t1 r1}
+do_test auth-1.169 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_DELETE" && $arg1=="sqlite_temp_master"} {
+      return SQLITE_IGNORE
+    }
+    return SQLITE_OK
+  }
+  catchsql {DROP TRIGGER r1}
+} {0 {}}
+do_test auth-1.170 {
+  execsql {SELECT name FROM temp.sqlite_master}
+} {t1 r1}
+do_test auth-1.171 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_DROP_TEMP_TRIGGER"} {
+      set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+      return SQLITE_IGNORE
+    }
+    return SQLITE_OK
+  }
+  catchsql {DROP TRIGGER r1}
+} {0 {}}
+do_test auth-1.172 {
+  set ::authargs
+} {r1 t1 temp {}}
+do_test auth-1.173 {
+  execsql {SELECT name FROM sqlite_temp_master}
+} {t1 r1}
+do_test auth-1.174 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_DROP_TEMP_TRIGGER"} {
+      set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+      return SQLITE_OK
+    }
+    return SQLITE_OK
+  }
+  catchsql {DROP TRIGGER r1}
+} {0 {}}
+do_test auth-1.175 {
+  set ::authargs
+} {r1 t1 temp {}}
+do_test auth-1.176 {
+  execsql {SELECT name FROM temp.sqlite_master}
+} {t1}
+} ;# ifcapable trigger
+
+do_test auth-1.177 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_CREATE_INDEX"} {
+      set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+      return SQLITE_DENY
+    }
+    return SQLITE_OK
+  }
+  catchsql {CREATE INDEX i2 ON t2(a)}
+} {1 {not authorized}}
+do_test auth-1.178 {
+  set ::authargs
+} {i2 t2 main {}}
+do_test auth-1.179 {
+  execsql {SELECT name FROM sqlite_master}
+} {t2}
+do_test auth-1.180 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_INSERT" && $arg1=="sqlite_master"} {
+      return SQLITE_DENY
+    }
+    return SQLITE_OK
+  }
+  catchsql {CREATE INDEX i2 ON t2(a)}
+} {1 {not authorized}}
+do_test auth-1.181 {
+  execsql {SELECT name FROM sqlite_master}
+} {t2}
+do_test auth-1.182 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_CREATE_INDEX"} {
+      set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+      return SQLITE_IGNORE
+    }
+    return SQLITE_OK
+  }
+  catchsql {CREATE INDEX i2 ON t2(b)}
+} {0 {}}
+do_test auth-1.183 {
+  set ::authargs
+} {i2 t2 main {}}
+do_test auth-1.184 {
+  execsql {SELECT name FROM sqlite_master}
+} {t2}
+do_test auth-1.185 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_INSERT" && $arg1=="sqlite_master"} {
+      return SQLITE_IGNORE
+    }
+    return SQLITE_OK
+  }
+  catchsql {CREATE INDEX i2 ON t2(b)}
+} {0 {}}
+do_test auth-1.186 {
+  execsql {SELECT name FROM sqlite_master}
+} {t2}
+do_test auth-1.187 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_CREATE_INDEX"} {
+      set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+      return SQLITE_OK
+    }
+    return SQLITE_OK
+  }
+  catchsql {CREATE INDEX i2 ON t2(a)}
+} {0 {}}
+do_test auth-1.188 {
+  set ::authargs
+} {i2 t2 main {}}
+do_test auth-1.189 {
+  execsql {SELECT name FROM sqlite_master}
+} {t2 i2}
+
+ifcapable tempdb {
+  do_test auth-1.190 {
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      if {$code=="SQLITE_CREATE_TEMP_INDEX"} {
+        set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+        return SQLITE_DENY
+      }
+      return SQLITE_OK
+    }
+    catchsql {CREATE INDEX i1 ON t1(a)}
+  } {1 {not authorized}}
+  do_test auth-1.191 {
+    set ::authargs
+  } {i1 t1 temp {}}
+  do_test auth-1.192 {
+    execsql {SELECT name FROM sqlite_temp_master}
+  } {t1}
+  do_test auth-1.193 {
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      if {$code=="SQLITE_INSERT" && $arg1=="sqlite_temp_master"} {
+        return SQLITE_DENY
+      }
+      return SQLITE_OK
+    }
+    catchsql {CREATE INDEX i1 ON t1(b)}
+  } {1 {not authorized}}
+  do_test auth-1.194 {
+    execsql {SELECT name FROM temp.sqlite_master}
+  } {t1}
+  do_test auth-1.195 {
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      if {$code=="SQLITE_CREATE_TEMP_INDEX"} {
+        set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+        return SQLITE_IGNORE
+      }
+      return SQLITE_OK
+    }
+    catchsql {CREATE INDEX i1 ON t1(b)}
+  } {0 {}}
+  do_test auth-1.196 {
+    set ::authargs
+  } {i1 t1 temp {}}
+  do_test auth-1.197 {
+    execsql {SELECT name FROM sqlite_temp_master}
+  } {t1}
+  do_test auth-1.198 {
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      if {$code=="SQLITE_INSERT" && $arg1=="sqlite_temp_master"} {
+        return SQLITE_IGNORE
+      }
+      return SQLITE_OK
+    }
+    catchsql {CREATE INDEX i1 ON t1(c)}
+  } {0 {}}
+  do_test auth-1.199 {
+    execsql {SELECT name FROM sqlite_temp_master}
+  } {t1}
+  do_test auth-1.200 {
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      if {$code=="SQLITE_CREATE_TEMP_INDEX"} {
+        set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+        return SQLITE_OK
+      }
+      return SQLITE_OK
+    }
+    catchsql {CREATE INDEX i1 ON t1(a)}
+  } {0 {}}
+  do_test auth-1.201 {
+    set ::authargs
+  } {i1 t1 temp {}}
+  do_test auth-1.202 {
+    execsql {SELECT name FROM temp.sqlite_master}
+  } {t1 i1}
+}
+
+do_test auth-1.203 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_DELETE" && $arg1=="sqlite_master"} {
+      return SQLITE_DENY
+    }
+    return SQLITE_OK
+  }
+  catchsql {DROP INDEX i2}
+} {1 {not authorized}}
+do_test auth-1.204 {
+  execsql {SELECT name FROM sqlite_master}
+} {t2 i2}
+do_test auth-1.205 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_DROP_INDEX"} {
+      set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+      return SQLITE_DENY
+    }
+    return SQLITE_OK
+  }
+  catchsql {DROP INDEX i2}
+} {1 {not authorized}}
+do_test auth-1.205a {
+  set ::authargs
+} {i2 t2 main {}}
+db eval {
+  ATTACH ':memory:' as di205;
+  CREATE TABLE di205.t1(x);
+  CREATE INDEX di205.t1x ON t1(x);
+}
+do_catchsql_test auth-1.205b {
+  DROP INDEX di205.t1x;
+} {1 {not authorized}}
+db eval {
+  DETACH di205;
+}
+do_test auth-1.206 {
+  set ::authargs
+} {t1x t1 di205 {}}
+do_test auth-1.207 {
+  execsql {SELECT name FROM sqlite_master}
+} {t2 i2}
+do_test auth-1.208 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_DELETE" && $arg1=="sqlite_master"} {
+      return SQLITE_IGNORE
+    }
+    return SQLITE_OK
+  }
+  catchsql {DROP INDEX i2}
+} {0 {}}
+do_test auth-1.209 {
+  execsql {SELECT name FROM sqlite_master}
+} {t2 i2}
+do_test auth-1.210 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_DROP_INDEX"} {
+      set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+      return SQLITE_IGNORE
+    }
+    return SQLITE_OK
+  }
+  catchsql {DROP INDEX i2}
+} {0 {}}
+do_test auth-1.211 {
+  set ::authargs
+} {i2 t2 main {}}
+do_test auth-1.212 {
+  execsql {SELECT name FROM sqlite_master}
+} {t2 i2}
+do_test auth-1.213 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_DROP_INDEX"} {
+      set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+      return SQLITE_OK
+    }
+    return SQLITE_OK
+  }
+  catchsql {DROP INDEX i2}
+} {0 {}}
+do_test auth-1.214 {
+  set ::authargs
+} {i2 t2 main {}}
+do_test auth-1.215 {
+  execsql {SELECT name FROM sqlite_master}
+} {t2}
+
+ifcapable tempdb {
+  do_test auth-1.216 {
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      if {$code=="SQLITE_DELETE" && $arg1=="sqlite_temp_master"} {
+        return SQLITE_DENY
+      }
+      return SQLITE_OK
+    }
+    catchsql {DROP INDEX i1}
+  } {1 {not authorized}}
+  do_test auth-1.217 {
+    execsql {SELECT name FROM sqlite_temp_master}
+  } {t1 i1}
+  do_test auth-1.218 {
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      if {$code=="SQLITE_DROP_TEMP_INDEX"} {
+        set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+        return SQLITE_DENY
+      }
+      return SQLITE_OK
+    }
+    catchsql {DROP INDEX i1}
+  } {1 {not authorized}}
+  do_test auth-1.219 {
+    set ::authargs
+  } {i1 t1 temp {}}
+  do_test auth-1.220 {
+    execsql {SELECT name FROM sqlite_temp_master}
+  } {t1 i1}
+  do_test auth-1.221 {
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      if {$code=="SQLITE_DELETE" && $arg1=="sqlite_temp_master"} {
+        return SQLITE_IGNORE
+      }
+      return SQLITE_OK
+    }
+    catchsql {DROP INDEX i1}
+  } {0 {}}
+  do_test auth-1.222 {
+    execsql {SELECT name FROM temp.sqlite_master}
+  } {t1 i1}
+  do_test auth-1.223 {
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      if {$code=="SQLITE_DROP_TEMP_INDEX"} {
+        set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+        return SQLITE_IGNORE
+      }
+      return SQLITE_OK
+    }
+    catchsql {DROP INDEX i1}
+  } {0 {}}
+  do_test auth-1.224 {
+    set ::authargs
+  } {i1 t1 temp {}}
+  do_test auth-1.225 {
+    execsql {SELECT name FROM temp.sqlite_master}
+  } {t1 i1}
+  do_test auth-1.226 {
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      if {$code=="SQLITE_DROP_TEMP_INDEX"} {
+        set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+        return SQLITE_OK
+      }
+      return SQLITE_OK
+    }
+    catchsql {DROP INDEX i1}
+  } {0 {}}
+  do_test auth-1.227 {
+    set ::authargs
+  } {i1 t1 temp {}}
+  do_test auth-1.228 {
+    execsql {SELECT name FROM temp.sqlite_master}
+  } {t1}
+}
+
+do_test auth-1.229 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_PRAGMA"} {
+      set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+      return SQLITE_DENY
+    }
+    return SQLITE_OK
+  }
+  catchsql {PRAGMA full_column_names=on}
+} {1 {not authorized}}
+do_test auth-1.230 {
+  set ::authargs
+} {full_column_names on {} {}}
+do_test auth-1.231 {
+  execsql2 {SELECT a FROM t2}
+} {a 11 a 7}
+do_test auth-1.232 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_PRAGMA"} {
+      set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+      return SQLITE_IGNORE
+    }
+    return SQLITE_OK
+  }
+  catchsql {PRAGMA full_column_names=on}
+} {0 {}}
+do_test auth-1.233 {
+  set ::authargs
+} {full_column_names on {} {}}
+do_test auth-1.234 {
+  execsql2 {SELECT a FROM t2}
+} {a 11 a 7}
+do_test auth-1.235 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_PRAGMA"} {
+      set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+      return SQLITE_OK
+    }
+    return SQLITE_OK
+  }
+  catchsql {PRAGMA full_column_names=on}
+} {0 {}}
+do_test auth-1.236 {
+  execsql2 {SELECT a FROM t2}
+} {t2.a 11 t2.a 7}
+do_test auth-1.237 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_PRAGMA"} {
+      set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+      return SQLITE_OK
+    }
+    return SQLITE_OK
+  }
+  catchsql {PRAGMA full_column_names=OFF}
+} {0 {}}
+do_test auth-1.238 {
+  set ::authargs
+} {full_column_names OFF {} {}}
+do_test auth-1.239 {
+  execsql2 {SELECT a FROM t2}
+} {a 11 a 7}
+
+do_test auth-1.240 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_TRANSACTION"} {
+      set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+      return SQLITE_DENY
+    }
+    return SQLITE_OK
+  }
+  catchsql {BEGIN}
+} {1 {not authorized}}
+do_test auth-1.241 {
+  set ::authargs
+} {BEGIN {} {} {}}
+do_test auth-1.242 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_TRANSACTION" && $arg1!="BEGIN"} {
+      set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+      return SQLITE_DENY
+    }
+    return SQLITE_OK
+  }
+  catchsql {BEGIN; INSERT INTO t2 VALUES(44,55,66); COMMIT}
+} {1 {not authorized}}
+do_test auth-1.243 {
+  set ::authargs
+} {COMMIT {} {} {}}
+do_test auth-1.244 {
+  execsql {SELECT * FROM t2}
+} {11 2 33 7 8 9 44 55 66}
+do_test auth-1.245 {
+  catchsql {ROLLBACK}
+} {1 {not authorized}}
+do_test auth-1.246 {
+  set ::authargs
+} {ROLLBACK {} {} {}}
+do_test auth-1.247 {
+  catchsql {END TRANSACTION}
+} {1 {not authorized}}
+do_test auth-1.248 {
+  set ::authargs
+} {COMMIT {} {} {}}
+do_test auth-1.249 {
+  # EVIDENCE-OF: R-52112-44167 Disable the authorizer by installing a NULL
+  # callback.
+  db authorizer {}
+  catchsql {ROLLBACK}
+} {0 {}}
+do_test auth-1.250 {
+  execsql {SELECT * FROM t2}
+} {11 2 33 7 8 9}
+
+# ticket #340 - authorization for ATTACH and DETACH.
+#
+ifcapable attach {
+  do_test auth-1.251 {
+    db authorizer ::auth
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      if {$code=="SQLITE_ATTACH"} {
+        set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+      }
+      return SQLITE_OK
+    }
+    catchsql {
+      ATTACH DATABASE ':memory:' AS test1
+    }
+  } {0 {}}
+  do_test auth-1.252a {
+    set ::authargs
+  } {:memory: {} {} {}}
+  do_test auth-1.252b {
+    db eval {DETACH test1}
+    set ::attachfilename :memory:
+    db eval {ATTACH $::attachfilename AS test1}
+    set ::authargs
+  } {{} {} {} {}}
+  do_test auth-1.252c {
+    db eval {DETACH test1}
+    db eval {ATTACH ':mem' || 'ory:' AS test1}
+    set ::authargs
+  } {{} {} {} {}}
+  do_test auth-1.253 {
+    catchsql {DETACH DATABASE test1}
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      if {$code=="SQLITE_ATTACH"} {
+        set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+        return SQLITE_DENY
+      }
+      return SQLITE_OK
+    }
+    catchsql {
+      ATTACH DATABASE ':memory:' AS test1;
+    }
+  } {1 {not authorized}}
+  do_test auth-1.254 {
+    lindex [execsql {PRAGMA database_list}] 7
+  } {}
+  do_test auth-1.255 {
+    catchsql {DETACH DATABASE test1}
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      if {$code=="SQLITE_ATTACH"} {
+        set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+        return SQLITE_IGNORE
+      }
+      return SQLITE_OK
+    }
+    catchsql {
+      ATTACH DATABASE ':memory:' AS test1;
+    }
+  } {0 {}}
+  do_test auth-1.256 {
+    lindex [execsql {PRAGMA database_list}] 7
+  } {}
+  do_test auth-1.257 {
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      if {$code=="SQLITE_DETACH"} {
+        set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+        return SQLITE_OK
+      }
+      return SQLITE_OK
+    }
+    execsql {ATTACH DATABASE ':memory:' AS test1}
+    catchsql {
+      DETACH DATABASE test1;
+    }
+  } {0 {}}
+  do_test auth-1.258 {
+    lindex [execsql {PRAGMA database_list}] 7
+  } {}
+  do_test auth-1.259 {
+    execsql {ATTACH DATABASE ':memory:' AS test1}
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      if {$code=="SQLITE_DETACH"} {
+        set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+        return SQLITE_IGNORE
+      }
+      return SQLITE_OK
+    }
+    catchsql {
+      DETACH DATABASE test1;
+    }
+  } {0 {}}
+  ifcapable tempdb {
+    ifcapable schema_pragmas {
+    do_test auth-1.260 {
+      lindex [execsql {PRAGMA database_list}] 7
+    } {test1}
+    } ;# ifcapable schema_pragmas
+    do_test auth-1.261 {
+      proc auth {code arg1 arg2 arg3 arg4 args} {
+        if {$code=="SQLITE_DETACH"} {
+          set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+          return SQLITE_DENY
+        }
+        return SQLITE_OK
+      }
+      catchsql {
+        DETACH DATABASE test1;
+      }
+    } {1 {not authorized}}
+    ifcapable schema_pragmas {
+    do_test auth-1.262 {
+      lindex [execsql {PRAGMA database_list}] 7
+    } {test1}
+    } ;# ifcapable schema_pragmas
+    db authorizer {}
+    execsql {DETACH DATABASE test1}
+    db authorizer ::auth
+    
+    # Authorization for ALTER TABLE. These tests are omitted if the library
+    # was built without ALTER TABLE support.
+    ifcapable altertable {
+    
+      do_test auth-1.263 {
+        proc auth {code arg1 arg2 arg3 arg4 args} {
+          if {$code=="SQLITE_ALTER_TABLE"} {
+            set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+            return SQLITE_OK
+          }
+          return SQLITE_OK
+        }
+        catchsql {
+          ALTER TABLE t1 RENAME TO t1x
+        }
+      } {0 {}}
+      do_test auth-1.264 {
+        execsql {SELECT name FROM sqlite_temp_master WHERE type='table'}
+      } {t1x}
+      do_test auth-1.265 {
+        set authargs
+      } {temp t1 {} {}}
+      do_test auth-1.266 {
+        proc auth {code arg1 arg2 arg3 arg4 args} {
+          if {$code=="SQLITE_ALTER_TABLE"} {
+            set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+            return SQLITE_IGNORE
+          }
+          return SQLITE_OK
+        }
+        catchsql {
+          ALTER TABLE t1x RENAME TO t1
+        }
+      } {0 {}}
+      do_test auth-1.267 {
+        execsql {SELECT name FROM temp.sqlite_master WHERE type='table'}
+      } {t1x}
+      do_test auth-1.268 {
+        set authargs
+      } {temp t1x {} {}}
+      do_test auth-1.269 {
+        proc auth {code arg1 arg2 arg3 arg4 args} {
+          if {$code=="SQLITE_ALTER_TABLE"} {
+            set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+            return SQLITE_DENY
+          }
+          return SQLITE_OK
+        }
+        catchsql {
+          ALTER TABLE t1x RENAME TO t1
+        }
+      } {1 {not authorized}}
+      do_test auth-1.270 {
+        execsql {SELECT name FROM sqlite_temp_master WHERE type='table'}
+      } {t1x}
+  
+      do_test auth-1.271 {
+        set authargs
+      } {temp t1x {} {}}
+    } ;# ifcapable altertable
+  
+  } else {
+    db authorizer {}
+    db eval {
+      DETACH DATABASE test1;
+    }
+  }
+}
+
+ifcapable  altertable {
+db authorizer {}
+catchsql {ALTER TABLE t1x RENAME TO t1}
+db authorizer ::auth
+do_test auth-1.272 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_ALTER_TABLE"} {
+      set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+      return SQLITE_OK
+    }
+    return SQLITE_OK
+  }
+  catchsql {
+    ALTER TABLE t2 RENAME TO t2x
+  }
+} {0 {}}
+do_test auth-1.273 {
+  execsql {SELECT name FROM sqlite_master WHERE type='table'}
+} {t2x}
+do_test auth-1.274 {
+  set authargs
+} {main t2 {} {}}
+do_test auth-1.275 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_ALTER_TABLE"} {
+      set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+      return SQLITE_IGNORE
+    }
+    return SQLITE_OK
+  }
+  catchsql {
+    ALTER TABLE t2x RENAME TO t2
+  }
+} {0 {}}
+do_test auth-1.276 {
+  execsql {SELECT name FROM sqlite_master WHERE type='table'}
+} {t2x}
+do_test auth-1.277 {
+  set authargs
+} {main t2x {} {}}
+do_test auth-1.278 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_ALTER_TABLE"} {
+      set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+      return SQLITE_DENY
+    }
+    return SQLITE_OK
+  }
+  catchsql {
+    ALTER TABLE t2x RENAME TO t2
+  }
+} {1 {not authorized}}
+do_test auth-1.279 {
+  execsql {SELECT name FROM sqlite_master WHERE type='table'}
+} {t2x}
+do_test auth-1.280 {
+  set authargs
+} {main t2x {} {}}
+db authorizer {}
+catchsql {ALTER TABLE t2x RENAME TO t2}
+
+} ;# ifcapable altertable
+
+# Test the authorization callbacks for the REINDEX command.
+ifcapable reindex {
+
+proc auth {code args} {
+  if {$code=="SQLITE_REINDEX"} {
+    set ::authargs [concat $::authargs [lrange $args 0 3]]
+  }
+  return SQLITE_OK
+}
+db authorizer auth
+do_test auth-1.281 {
+  execsql {
+    CREATE TABLE t3(a PRIMARY KEY, b, c);
+    CREATE INDEX t3_idx1 ON t3(c COLLATE BINARY);
+    CREATE INDEX t3_idx2 ON t3(b COLLATE NOCASE);
+  }
+} {}
+do_test auth-1.282 {
+  set ::authargs {}
+  execsql {
+    REINDEX t3_idx1;
+  }
+  set ::authargs
+} {t3_idx1 {} main {}}
+do_test auth-1.283 {
+  set ::authargs {}
+  execsql {
+    REINDEX BINARY;
+  }
+  set ::authargs
+} {t3_idx1 {} main {} sqlite_autoindex_t3_1 {} main {}}
+do_test auth-1.284 {
+  set ::authargs {}
+  execsql {
+    REINDEX NOCASE;
+  }
+  set ::authargs
+} {t3_idx2 {} main {}}
+do_test auth-1.285 {
+  set ::authargs {}
+  execsql {
+    REINDEX t3;
+  }
+  set ::authargs
+} {t3_idx2 {} main {} t3_idx1 {} main {} sqlite_autoindex_t3_1 {} main {}}
+do_test auth-1.286 {
+  execsql {
+    DROP TABLE t3;
+  }
+} {}
+ifcapable tempdb {
+  do_test auth-1.287 {
+    execsql {
+      CREATE TEMP TABLE t3(a PRIMARY KEY, b, c);
+      CREATE INDEX t3_idx1 ON t3(c COLLATE BINARY);
+      CREATE INDEX t3_idx2 ON t3(b COLLATE NOCASE);
+    }
+  } {}
+  do_test auth-1.288 {
+    set ::authargs {}
+    execsql {
+      REINDEX temp.t3_idx1;
+    }
+    set ::authargs
+  } {t3_idx1 {} temp {}}
+  do_test auth-1.289 {
+    set ::authargs {}
+    execsql {
+      REINDEX BINARY;
+    }
+    set ::authargs
+  } {t3_idx1 {} temp {} sqlite_autoindex_t3_1 {} temp {}}
+  do_test auth-1.290 {
+    set ::authargs {}
+    execsql {
+      REINDEX NOCASE;
+    }
+    set ::authargs
+  } {t3_idx2 {} temp {}}
+  do_test auth-1.291 {
+    set ::authargs {}
+    execsql {
+      REINDEX temp.t3;
+    }
+    set ::authargs
+  } {t3_idx2 {} temp {} t3_idx1 {} temp {} sqlite_autoindex_t3_1 {} temp {}}
+  proc auth {code args} {
+    if {$code=="SQLITE_REINDEX"} {
+      set ::authargs [concat $::authargs [lrange $args 0 3]]
+      return SQLITE_DENY
+    }
+    return SQLITE_OK
+  }
+  do_test auth-1.292 {
+    set ::authargs {}
+    catchsql {
+      REINDEX temp.t3;
+    }
+  } {1 {not authorized}}
+  do_test auth-1.293 {
+    execsql {
+      DROP TABLE t3;
+    }
+  } {}
+}
+
+} ;# ifcapable reindex 
+
+ifcapable analyze {
+  proc auth {code args} {
+    if {$code=="SQLITE_ANALYZE"} {
+      set ::authargs [concat $::authargs [lrange $args 0 3]]
+    }
+    return SQLITE_OK
+  }
+  do_test auth-1.294 {
+    set ::authargs {}
+    execsql {
+      CREATE TABLE t4(a,b,c);
+      CREATE INDEX t4i1 ON t4(a);
+      CREATE INDEX t4i2 ON t4(b,a,c);
+      INSERT INTO t4 VALUES(1,2,3);
+      ANALYZE;
+    }
+    set ::authargs
+  } {t4 {} main {} t2 {} main {}}
+  do_test auth-1.295 {
+    execsql {
+      SELECT count(*) FROM sqlite_stat1;
+    }
+  } 3
+  proc auth {code args} {
+    if {$code=="SQLITE_ANALYZE"} {
+      set ::authargs [concat $::authargs $args]
+      return SQLITE_DENY
+    }
+    return SQLITE_OK
+  }
+  do_test auth-1.296 {
+    set ::authargs {}
+    catchsql {
+      ANALYZE;
+    }
+  } {1 {not authorized}}
+  do_test auth-1.297 {
+    execsql {
+      SELECT count(*) FROM sqlite_stat1;
+    }
+  } 3
+} ;# ifcapable analyze
+
+
+# Authorization for ALTER TABLE ADD COLUMN.
+# These tests are omitted if the library
+# was built without ALTER TABLE support.
+ifcapable {altertable} {
+  do_test auth-1.300 {
+    execsql {CREATE TABLE t5(x)}
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      if {$code=="SQLITE_ALTER_TABLE"} {
+        set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+        return SQLITE_OK
+      }
+      return SQLITE_OK
+    }
+    catchsql {
+      ALTER TABLE t5 ADD COLUMN new_col_1;
+    }
+  } {0 {}}
+  do_test auth-1.301 {
+    set x [execsql {SELECT sql FROM sqlite_master WHERE name='t5'}]
+    regexp new_col_1 $x
+  } {1}
+  do_test auth-1.302 {
+    set authargs
+  } {main t5 {} {}}
+  db eval BEGIN
+  set authargs {}
+  do_execsql_test auth-1.302-drop-1 {
+    ALTER TABLE t5 DROP COLUMN new_col_1;
+  } {}
+  db eval ROLLBACK
+  do_test auth-1.302-drop-2 {
+    set authargs
+  } {main t5 new_col_1 {}}
+  do_test auth-1.303 {
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      if {$code=="SQLITE_ALTER_TABLE"} {
+        set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+        return SQLITE_IGNORE
+      }
+      return SQLITE_OK
+    }
+    catchsql {
+      ALTER TABLE t5 ADD COLUMN new_col_2;
+    }
+  } {0 {}}
+  do_test auth-1.304 {
+    set x [execsql {SELECT sql FROM sqlite_master WHERE name='t5'}]
+    regexp new_col_2 $x
+  } {0}
+  do_test auth-1.305 {
+    set authargs
+  } {main t5 {} {}}
+  db eval BEGIN
+  set authargs {}
+  do_execsql_test auth-1.305-drop-1 {
+     ALTER TABLE t5 DROP COLUMN new_col_1;
+     SELECT 1 FROM sqlite_schema WHERE name='t5' AND sql LIKE '%new_col_1%';
+  } {1}
+  db eval ROLLBACK
+  do_test auth-1.305-drop-2 {
+    set authargs
+  } {main t5 new_col_1 {}}
+  do_test auth-1.306 {
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      if {$code=="SQLITE_ALTER_TABLE"} {
+        set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+        return SQLITE_DENY
+      }
+      return SQLITE_OK
+    }
+    catchsql {
+      ALTER TABLE t5 ADD COLUMN new_col_3
+    }
+  } {1 {not authorized}}
+  do_test auth-1.307 {
+    set x [execsql {SELECT sql FROM temp.sqlite_master WHERE type='t5'}]
+    regexp new_col_3 $x
+  } {0}
+  do_test auth-1.308 {
+    set authargs
+  } {main t5 {} {}}
+  db eval BEGIN
+  set authargs {}
+  do_catchsql_test auth-1.308-drop-1 {
+    ALTER TABLE t5 DROP COLUMN new_col_1;
+  } {1 {not authorized}}
+  do_execsql_test auth-1.308-drop-2 {
+    SELECT 1 FROM sqlite_schema WHERE name='t5' AND sql LIKE '%new_col_1%';
+  } {1}
+  do_test auth-1.308-drop-3 {
+    set authargs
+  } {main t5 new_col_1 {}}
+  db eval ROLLBACK
+
+  execsql {DROP TABLE t5}
+} ;# ifcapable altertable
+
+ifcapable {cte} {
+  do_test auth-1.310 {
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      if {$code=="SQLITE_RECURSIVE"} {
+        return SQLITE_DENY
+      }
+      return SQLITE_OK
+    }
+    db eval {
+       DROP TABLE IF EXISTS t1;
+       CREATE TABLE t1(a,b);
+       INSERT INTO t1 VALUES(1,2),(3,4),(5,6);
+    }
+  } {}
+  do_catchsql_test auth-1.311 {
+    WITH
+       auth1311(x,y) AS (SELECT a+b, b-a FROM t1)
+    SELECT * FROM auth1311 ORDER BY x;
+  } {0 {3 1 7 1 11 1}}
+  do_catchsql_test auth-1.312 {
+    WITH RECURSIVE
+       auth1312(x,y) AS (SELECT a+b, b-a FROM t1)
+    SELECT x, y FROM auth1312 ORDER BY x;
+  } {0 {3 1 7 1 11 1}}
+  do_catchsql_test auth-1.313 {
+    WITH RECURSIVE
+       auth1313(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM auth1313 WHERE x<5)
+    SELECT * FROM t1;
+  } {0 {1 2 3 4 5 6}}
+  do_catchsql_test auth-1.314 {
+    WITH RECURSIVE
+       auth1314(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM auth1314 WHERE x<5)
+    SELECT * FROM t1 LEFT JOIN auth1314;
+  } {1 {not authorized}}
+} ;# ifcapable cte
+
+#
+# db eval {SELECT sql FROM temp.sqlite_master} {puts "TEMP: $sql;"}
+# db eval {SELECT sql FROM main.sqlite_master} {puts "MAIN: $sql;"}
+#
+#    MAIN: CREATE TABLE "t2"(a,b,c);
+#    MAIN: CREATE TABLE t4(a,b,c);
+#    MAIN: CREATE INDEX t4i1 ON t4(a);
+#    MAIN: CREATE INDEX t4i2 ON t4(b,a,c);
+#    MAIN: CREATE TABLE sqlite_stat1(tbl,idx,stat);
+#    MAIN: CREATE TABLE t1(a,b);
+#
+ifcapable altertable&&vtab {
+  do_test auth-1.350 {
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      if {$code=="SQLITE_ALTER_TABLE"} {
+        set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+        return SQLITE_OK
+      }
+      return SQLITE_OK
+    }
+    catchsql {
+      ALTER TABLE t1 RENAME COLUMN b TO bcdefg;
+    }
+  } {0 {}}
+  do_execsql_test auth-1.351 {
+    SELECT name FROM pragma_table_info('t1') ORDER BY cid;
+  } {a bcdefg}
+  do_test auth-1.352 {
+    set authargs
+  } {main t1 {} {}}
+  do_test auth-1.353 {
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      if {$code=="SQLITE_ALTER_TABLE"} {
+        set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+        return SQLITE_IGNORE
+      }
+      return SQLITE_OK
+    }
+    catchsql {
+      ALTER TABLE t1 RENAME COLUMN bcdefg TO b;
+    }
+  } {0 {}}
+  do_execsql_test auth-1.354 {
+    SELECT name FROM pragma_table_info('t1') ORDER BY cid;
+  } {a bcdefg}
+  do_test auth-1.355 {
+    set authargs
+  } {main t1 {} {}}
+  do_test auth-1.356 {
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      if {$code=="SQLITE_ALTER_TABLE"} {
+        set ::authargs [list $arg1 $arg2 $arg3 $arg4]
+        return SQLITE_DENY
+      }
+      return SQLITE_OK
+    }
+    catchsql {
+      ALTER TABLE t1 RENAME COLUMN bcdefg TO b;
+    }
+  } {1 {not authorized}}
+  do_execsql_test auth-1.357 {
+    SELECT name FROM pragma_table_info('t1') ORDER BY cid;
+  } {a bcdefg}
+  do_test auth-1.358 {
+    set authargs
+  } {main t1 {} {}}
+}
+
+# 2022-12-28
+# The sqlite3_declare_vtab() call that occurs during pragma_table_list
+# should not cause an authentication failure.
+#
+ifcapable vtab {
+  do_test auth-1.359 {
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      if {$code=="SQLITE_UPDATE"} {
+        return SQLITE_DENY
+      }
+      return SQLITE_OK
+    }
+    catchsql {SELECT * FROM pragma_table_list WHERE name='xyzzy';}
+  } {0 {}}
+}
+
+do_test auth-2.1 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_READ" && $arg1=="t3" && $arg2=="x"} {
+      return SQLITE_DENY
+    }
+    return SQLITE_OK
+  }
+  db authorizer ::auth
+  execsql {CREATE TABLE t3(x INTEGER PRIMARY KEY, y, z)}
+  catchsql {SELECT * FROM t3}
+} {1 {access to t3.x is prohibited}}
+do_test auth-2.1 {
+  catchsql {SELECT y,z FROM t3}
+} {0 {}}
+do_test auth-2.2 {
+  catchsql {SELECT ROWID,y,z FROM t3}
+} {1 {access to t3.x is prohibited}}
+do_test auth-2.3 {
+  catchsql {SELECT OID,y,z FROM t3}
+} {1 {access to t3.x is prohibited}}
+do_test auth-2.4 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_READ" && $arg1=="t3" && $arg2=="x"} {
+      return SQLITE_IGNORE
+    }
+    return SQLITE_OK
+  }
+  execsql {INSERT INTO t3 VALUES(44,55,66)}
+  catchsql {SELECT * FROM t3}
+} {0 {{} 55 66}}
+do_test auth-2.5 {
+  catchsql {SELECT rowid,y,z FROM t3}
+} {0 {{} 55 66}}
+do_test auth-2.6 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_READ" && $arg1=="t3" && $arg2=="ROWID"} {
+      return SQLITE_IGNORE
+    }
+    return SQLITE_OK
+  }
+  catchsql {SELECT * FROM t3}
+} {0 {44 55 66}}
+do_test auth-2.7 {
+  catchsql {SELECT ROWID,y,z FROM t3}
+} {0 {44 55 66}}
+do_test auth-2.8 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_READ" && $arg1=="t2" && $arg2=="ROWID"} {
+      return SQLITE_IGNORE
+    }
+    return SQLITE_OK
+  }
+  catchsql {SELECT ROWID,b,c FROM t2}
+} {0 {{} 2 33 {} 8 9}}
+do_test auth-2.9.1 {
+  # We have to flush the cache here in case the Tcl interface tries to
+  # reuse a statement compiled with sqlite3_prepare_v2(). In this case,
+  # the first error encountered is an SQLITE_SCHEMA error. Then, when
+  # trying to recompile the statement, the authorization error is encountered.
+  # If we do not flush the cache, the correct error message is returned, but
+  # the error code is SQLITE_SCHEMA, not SQLITE_ERROR as required by the test
+  # case after this one.
+  #
+  db cache flush
+
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_READ" && $arg1=="t2" && $arg2=="ROWID"} {
+      return bogus
+    }
+    return SQLITE_OK
+  }
+  catchsql {SELECT ROWID,b,c FROM t2}
+} {1 {authorizer malfunction}}
+do_test auth-2.9.2 {
+  db errorcode
+} {1}
+do_test auth-2.10 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_SELECT"} {
+      return bogus
+    }
+    return SQLITE_OK
+  }
+  catchsql {SELECT ROWID,b,c FROM t2}
+} {1 {authorizer malfunction}}
+do_test auth-2.11.1 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_READ" && $arg2=="a"} {
+      return SQLITE_IGNORE
+    }
+    return SQLITE_OK
+  }
+  catchsql {SELECT * FROM t2, t3}
+} {0 {{} 2 33 44 55 66 {} 8 9 44 55 66}}
+do_test auth-2.11.2 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_READ" && $arg2=="x"} {
+      return SQLITE_IGNORE
+    }
+    return SQLITE_OK
+  }
+  catchsql {SELECT * FROM t2, t3}
+} {0 {11 2 33 {} 55 66 7 8 9 {} 55 66}}
+
+# Make sure the OLD and NEW pseudo-tables of a trigger get authorized.
+#
+ifcapable trigger {
+  do_test auth-3.1 {
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      return SQLITE_OK
+    }
+    execsql {
+      CREATE TABLE tx(a1,a2,b1,b2,c1,c2);
+      CREATE TRIGGER r1 AFTER UPDATE ON t2 FOR EACH ROW BEGIN
+        INSERT INTO tx VALUES(OLD.a,NEW.a,OLD.b,NEW.b,OLD.c,NEW.c);
+      END;
+      UPDATE t2 SET a=a+1;
+      SELECT * FROM tx;
+    }
+  } {11 12 2 2 33 33 7 8 8 8 9 9}
+  do_test auth-3.2 {
+    proc auth {code arg1 arg2 arg3 arg4 args} {
+      if {$code=="SQLITE_READ" && $arg1=="t2" && $arg2=="c"} {
+        return SQLITE_IGNORE
+      }
+      return SQLITE_OK
+    }
+    execsql {
+      DELETE FROM tx;
+      UPDATE t2 SET a=a+100;
+      SELECT * FROM tx;
+    }
+  } {12 112 2 2 {} {} 8 108 8 8 {} {}}
+} ;# ifcapable trigger
+
+# Make sure the names of views and triggers are passed on on arg4.
+#
+ifcapable trigger {
+do_test auth-4.1 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    lappend ::authargs $code $arg1 $arg2 $arg3 $arg4
+    return SQLITE_OK
+  }
+  set authargs {}
+  execsql {
+    UPDATE t2 SET a=a+1;
+  }
+  set authargs
+} [list \
+  SQLITE_READ   t2 a  main {} \
+  SQLITE_UPDATE t2 a  main {} \
+  SQLITE_INSERT tx {} main r1 \
+  SQLITE_READ   t2 a  main r1 \
+  SQLITE_READ   t2 a  main r1 \
+  SQLITE_READ   t2 b  main r1 \
+  SQLITE_READ   t2 b  main r1 \
+  SQLITE_READ   t2 c  main r1 \
+  SQLITE_READ   t2 c  main r1]
+}
+
+ifcapable {view && trigger} {
+do_test auth-4.2 {
+  execsql {
+    CREATE VIEW v1 AS SELECT a+b AS x FROM t2;
+    CREATE TABLE v1chng(x1,x2);
+    CREATE TRIGGER r2 INSTEAD OF UPDATE ON v1 BEGIN
+      INSERT INTO v1chng VALUES(OLD.x,NEW.x);
+    END;
+    SELECT * FROM v1;
+  }
+} {115 117}
+do_test auth-4.3 {
+  set authargs {}
+  execsql {
+    UPDATE v1 SET x=1 WHERE x=117
+  }
+  set authargs
+} [list \
+  SQLITE_UPDATE v1     x  main {} \
+  SQLITE_SELECT {}     {} {}   v1 \
+  SQLITE_READ   t2     a  main v1 \
+  SQLITE_READ   t2     b  main v1 \
+  SQLITE_READ   v1     x  main v1 \
+  SQLITE_READ   v1     x  main v1 \
+  SQLITE_SELECT {}     {} {} v1   \
+  SQLITE_READ   v1     x  main v1 \
+  SQLITE_INSERT v1chng {} main r2 \
+  SQLITE_READ   v1     x  main r2 \
+  SQLITE_READ   v1     x  main r2 \
+]
+
+do_test auth-4.4 {
+  execsql {
+    CREATE TRIGGER r3 INSTEAD OF DELETE ON v1 BEGIN
+      INSERT INTO v1chng VALUES(OLD.x,NULL);
+    END;
+    SELECT * FROM v1;
+  }
+} {115 117}
+do_test auth-4.5 {
+  set authargs {}
+  execsql {
+    DELETE FROM v1 WHERE x=117
+  }
+  set authargs
+} [list \
+  SQLITE_DELETE v1     {} main {} \
+  SQLITE_SELECT {}     {} {}   v1 \
+  SQLITE_READ   t2     a  main v1 \
+  SQLITE_READ   t2     b  main v1 \
+  SQLITE_READ   v1     x  main v1 \
+  SQLITE_READ   v1     x  main v1 \
+  SQLITE_SELECT {}     {} {} v1   \
+  SQLITE_READ   v1     x  main v1 \
+  SQLITE_INSERT v1chng {} main r3 \
+  SQLITE_READ   v1     x  main r3 \
+]
+
+} ;# ifcapable view && trigger
+
+# Ticket #1338:  Make sure authentication works in the presence of an AS
+# clause.
+#
+do_test auth-5.1 {
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    return SQLITE_OK
+  }
+  execsql {
+    SELECT count(a) AS cnt FROM t4 ORDER BY cnt
+  }
+} {1}
+
+# Ticket #1607
+#
+ifcapable compound&&subquery {
+  ifcapable trigger {
+    execsql {
+      DROP TABLE tx;
+    }
+    ifcapable view {
+      execsql {
+        DROP TABLE v1chng;
+      }
+    }
+  }
+  ifcapable stat4 {
+    set stat4 "sqlite_stat4 "
+  } else {
+    set stat4 ""
+  }
+  do_test auth-5.2 {
+    execsql {
+      SELECT name FROM (
+        SELECT * FROM sqlite_master UNION ALL SELECT * FROM temp.sqlite_master)
+      WHERE type='table'
+      ORDER BY name
+    }
+  } "sqlite_stat1 ${stat4}t1 t2 t3 t4"
+}
+
+# Ticket #3944
+#
+ifcapable trigger {
+  do_test auth-5.3.1 {
+    execsql {
+      CREATE TABLE t5 ( x );
+      CREATE TRIGGER t5_tr1 AFTER INSERT ON t5 BEGIN 
+        UPDATE t5 SET x = 1 WHERE NEW.x = 0;
+      END;
+    }
+  } {}
+  set ::authargs [list]
+  proc auth {args} {
+    eval lappend ::authargs [lrange $args 0 4]
+    return SQLITE_OK
+  }
+  do_test auth-5.3.2 {
+    execsql { INSERT INTO t5 (x) values(0) }
+    set ::authargs
+  } [list SQLITE_INSERT t5 {} main {}    \
+          SQLITE_UPDATE t5 x main t5_tr1 \
+          SQLITE_READ t5 x main t5_tr1   \
+    ]
+  do_test auth-5.3.2 {
+    execsql { SELECT * FROM t5 }
+  } {1}
+}
+
+# Ticket [0eb70d77cb05bb22720]:  Invalid pointer passsed to the authorizer
+# callback when updating a ROWID.
+#
+do_test auth-6.1 {
+  execsql {
+    CREATE TABLE t6(a,b,c,d,e,f,g,h);
+    INSERT INTO t6 VALUES(1,2,3,4,5,6,7,8);
+  }
+} {}
+set ::authargs [list]
+proc auth {args} {
+  eval lappend ::authargs [lrange $args 0 4]
+  return SQLITE_OK
+}
+do_test auth-6.2 {
+  execsql {UPDATE t6 SET rowID=rowID+100}
+  set ::authargs
+} [list SQLITE_READ   t6 ROWID main {} \
+        SQLITE_UPDATE t6 ROWID main {} \
+]
+do_test auth-6.3 {
+  execsql {SELECT rowid, * FROM t6}
+} {101 1 2 3 4 5 6 7 8}
+
+#-------------------------------------------------------------------------
+# Test that view names are included as zArg4.
+#
+do_execsql_test auth-7.1 {
+  CREATE TABLE t7(a, b, c);
+  CREATE VIEW v7 AS SELECT * FROM t7;
+} {}
+set ::authargs [list]
+proc auth {args} {
+  eval lappend ::authargs [lrange $args 0 4]
+  return SQLITE_OK
+}
+
+do_test auth-7.2 {
+  execsql {SELECT a, c FROM v7}
+  set ::authargs
+} [list                          \
+  SQLITE_SELECT {} {} {} {}      \
+  SQLITE_READ t7 a main v7       \
+  SQLITE_READ t7 b main v7       \
+  SQLITE_READ t7 c main v7       \
+  SQLITE_READ v7 a main {}       \
+  SQLITE_READ v7 c main {}       \
+  SQLITE_SELECT {} {} {} v7      \
+]
+
+set ::authargs [list]
+do_test auth-7.3 {
+  execsql {SELECT a, c FROM t7}
+  set ::authargs
+} [list                          \
+  SQLITE_SELECT {} {} {} {}      \
+  SQLITE_READ t7 a main {}       \
+  SQLITE_READ t7 c main {}       \
+]
+
+set ::authargs [list]
+do_test auth-7.4 {
+  execsql {SELECT a, c FROM t7 AS v7}
+  set ::authargs
+} [list                          \
+  SQLITE_SELECT {} {} {} {}      \
+  SQLITE_READ t7 a main {}       \
+  SQLITE_READ t7 c main {}       \
+]
+
+# If a table is referenced but no columns are read from the table,
+# that causes a single SQLITE_READ authorization with a NULL column
+# name.
+#
+# EVIDENCE-OF: R-31520-16302 When a table is referenced by a SELECT but
+# no column values are extracted from that table (for example in a query
+# like "SELECT count(*) FROM tab") then the SQLITE_READ authorizer
+# callback is invoked once for that table with a column name that is an
+# empty string.
+#
+set ::authargs [list]
+do_test auth-8.1 {
+  execsql {SELECT count(*) FROM t7}
+  set ::authargs
+} [list \
+  SQLITE_SELECT {} {} {} {}          \
+  SQLITE_FUNCTION {} count {} {}     \
+  SQLITE_READ t7 {} {} {}            \
+  ]
+set ::authargs [list]
+
+do_test auth-8.2 {
+  execsql {SELECT t6.a FROM t6, t7}
+  set ::authargs
+} [list \
+  SQLITE_SELECT {} {} {} {}          \
+  SQLITE_READ t6 a main {}           \
+  SQLITE_READ t7 {} {} {}            \
+  ]
+
+# Test also that if SQLITE_DENY is returned from an SQLITE_READ authorizer 
+# invocation with no column name specified, compilation fails.
+#
+set ::authargs [list]
+proc auth {op args} {
+  foreach {a b c d} $args break
+  lappend ::authargs $op $a $b $c $d
+  if {$op == "SQLITE_READ"} { return "SQLITE_DENY" }
+  return "SQLITE_OK"
+}
+set ::authargs [list]
+do_catchsql_test auth-8.3 {
+  SELECT count(*) FROM t7
+} {1 {not authorized}}
+do_test auth-8.4 {
+  set ::authargs
+} [list \
+  SQLITE_SELECT {} {} {} {}          \
+  SQLITE_FUNCTION {} count {} {}     \
+  SQLITE_READ t7 {} {} {}            \
+]
+
+
+rename proc {}
+rename proc_real proc
+finish_test
diff --git a/test/auth2.test b/test/auth2.test
new file mode 100644
index 0000000000000000000000000000000000000000..08d46cac57f471324ff99999e655031145bed4c8
--- /dev/null
+++ b/test/auth2.test
@@ -0,0 +1,160 @@
+# 2006 Aug 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the sqlite3_set_authorizer() API
+# and related functionality.
+#
+# $Id: auth2.test,v 1.3 2008/07/02 13:13:53 danielk1977 Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# disable this test if the SQLITE_OMIT_AUTHORIZATION macro is
+# defined during compilation.
+if {[catch {db auth {}} msg]} {
+  finish_test
+  return
+}
+
+do_test auth2-1.1 {
+  execsql {
+    CREATE TABLE t1(a,b,c);
+    INSERT INTO t1 VALUES(1,2,3);
+  }
+  set ::flist {}
+  proc auth {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_FUNCTION"} {
+      lappend ::flist $arg2
+      if {$arg2=="max"} {
+        return SQLITE_DENY
+      } elseif {$arg2=="min"} {
+        return SQLITE_IGNORE
+      } else {
+        return SQLITE_OK
+      }
+    }
+    return SQLITE_OK
+  }
+  db authorizer ::auth
+  catchsql {SELECT max(a,b,c) FROM t1}
+} {1 {not authorized to use function: max}}
+do_test auth2-1.2 {
+  set ::flist
+} max
+do_test auth2-1.3 {
+  set ::flist {}
+  catchsql {SELECT min(a,b,c) FROM t1}
+} {0 {{}}}
+do_test auth2-1.4 {
+  set ::flist
+} min
+do_test auth2-1.5 {
+  set ::flist {}
+  catchsql {SELECT coalesce(min(a,b,c),999) FROM t1}
+} {0 999}
+do_test auth2-1.6 {
+  set ::flist
+} {coalesce min}
+do_test auth2-1.7 {
+  set ::flist {}
+  catchsql {SELECT coalesce(a,b,c) FROM t1}
+} {0 1}
+do_test auth2-1.8 {
+  set ::flist
+} coalesce
+
+# Make sure the authorizer is not called when parsing the schema
+# and when computing the result set of a view.
+#
+db close
+sqlite3 db test.db
+sqlite3 db2 test.db
+proc auth {args} {
+  global authargs
+  append authargs [lrange $args 0 4]\n
+  return SQLITE_OK
+}
+db auth auth
+do_test auth2-2.1 {
+  set ::authargs {}
+  db eval {
+    CREATE TABLE t2(x,y,z);
+  }
+  set ::authargs
+} {SQLITE_INSERT sqlite_master {} main {}
+SQLITE_CREATE_TABLE t2 {} main {}
+SQLITE_UPDATE sqlite_master type main {}
+SQLITE_UPDATE sqlite_master name main {}
+SQLITE_UPDATE sqlite_master tbl_name main {}
+SQLITE_UPDATE sqlite_master rootpage main {}
+SQLITE_UPDATE sqlite_master sql main {}
+SQLITE_READ sqlite_master ROWID main {}
+}
+do_test auth2-2.2 {
+  set ::authargs {}
+  db eval {
+    CREATE VIEW v2 AS SELECT x+y AS a, y+z AS b from t2;
+  }
+  set ::authargs
+} {SQLITE_INSERT sqlite_master {} main {}
+SQLITE_CREATE_VIEW v2 {} main {}
+SQLITE_UPDATE sqlite_master type main {}
+SQLITE_UPDATE sqlite_master name main {}
+SQLITE_UPDATE sqlite_master tbl_name main {}
+SQLITE_UPDATE sqlite_master rootpage main {}
+SQLITE_UPDATE sqlite_master sql main {}
+SQLITE_READ sqlite_master ROWID main {}
+}
+do_test auth2-2.3 {
+  set ::authargs {}
+  db eval {
+    SELECT a, b FROM v2;
+  }
+  set ::authargs
+} {SQLITE_SELECT {} {} {} {}
+SQLITE_READ t2 x main v2
+SQLITE_READ t2 y main v2
+SQLITE_READ t2 y main v2
+SQLITE_READ t2 z main v2
+SQLITE_READ v2 a main {}
+SQLITE_READ v2 b main {}
+SQLITE_SELECT {} {} {} v2
+}
+do_test auth2-2.4 {
+  db2 eval {
+    CREATE TABLE t3(p,q,r);
+  }
+  set ::authargs {}
+  db eval {
+    SELECT b, a FROM v2;
+  }
+  set ::authargs
+} {SQLITE_SELECT {} {} {} {}
+SQLITE_READ t2 x main v2
+SQLITE_READ t2 y main v2
+SQLITE_READ t2 y main v2
+SQLITE_READ t2 z main v2
+SQLITE_READ v2 b main {}
+SQLITE_READ v2 a main {}
+SQLITE_SELECT {} {} {} v2
+SQLITE_SELECT {} {} {} {}
+SQLITE_READ t2 x main v2
+SQLITE_READ t2 y main v2
+SQLITE_READ t2 y main v2
+SQLITE_READ t2 z main v2
+SQLITE_READ v2 b main {}
+SQLITE_READ v2 a main {}
+SQLITE_SELECT {} {} {} v2
+}
+db2 close
+
+finish_test
diff --git a/test/auth3.test b/test/auth3.test
new file mode 100644
index 0000000000000000000000000000000000000000..abc973433ee41f698e94b99d04a3061586e195f2
--- /dev/null
+++ b/test/auth3.test
@@ -0,0 +1,134 @@
+# 2008 October 27
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test that the truncate optimization is disabled if the SQLITE_DELETE
+# authorization callback returns SQLITE_IGNORE.
+#
+# Test that authorizer is disabled during schema parsing.
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# disable this test if the SQLITE_OMIT_AUTHORIZATION macro is
+# defined during compilation.
+if {[catch {db auth {}} msg]} {
+  finish_test
+  return
+}
+
+# Disable the statement cache for these tests.
+# 
+db cache size 0
+
+db authorizer ::auth
+proc auth {code arg1 arg2 arg3 arg4 args} {
+  if {$code=="SQLITE_DELETE"} {
+    return $::authcode
+  }
+  return SQLITE_OK
+}
+
+#--------------------------------------------------------------------------
+# The following tests - auth3-1.* - test that return values of SQLITE_DENY,
+# SQLITE_IGNORE, SQLITE_OK and <invalid> are correctly handled when returned
+# by an SQLITE_DELETE authorization callback triggered by a 
+# "DELETE FROM <table-name>" statement.
+#
+do_test auth3-1.1 {
+  execsql {
+    CREATE TABLE t1(a,b,c);
+    INSERT INTO t1 VALUES(1, 2, 3);
+    INSERT INTO t1 VALUES(4, 5, 6);
+  }
+} {}
+do_test auth3.1.2 {
+  set ::authcode SQLITE_DENY
+  catchsql { DELETE FROM t1 }
+} {1 {not authorized}}
+# EVIDENCE-OF: R-64962-58611 If the authorizer callback returns any
+# value other than SQLITE_IGNORE, SQLITE_OK, or SQLITE_DENY then the
+# sqlite3_prepare_v2() or equivalent call that triggered the authorizer
+# will fail with an error message.
+do_test auth3.1.3 {
+  set ::authcode SQLITE_INVALID
+  catchsql { DELETE FROM t1 }
+} {1 {authorizer malfunction}}
+do_test auth3.1.4 {
+  execsql { SELECT * FROM t1 }
+} {1 2 3 4 5 6}
+do_test auth3-1.5 {
+  set ::authcode SQLITE_IGNORE
+  execsql { 
+    DELETE FROM t1;
+    SELECT * FROM t1;
+  }
+} {}
+do_test auth3-1.6 {
+  set ::authcode SQLITE_OK
+  execsql {
+    INSERT INTO t1 VALUES(1, 2, 3);
+    INSERT INTO t1 VALUES(4, 5, 6);
+    DELETE FROM t1;
+    SELECT * FROM t1;
+  }
+} {}
+
+#--------------------------------------------------------------------------
+# These tests - auth3-2.* - test that returning SQLITE_IGNORE really does
+# disable the truncate optimization.
+#
+do_test auth3-2.1 {
+  set ::authcode SQLITE_OK
+  execsql {
+    INSERT INTO t1 VALUES(1, 2, 3);
+    INSERT INTO t1 VALUES(4, 5, 6);
+  }
+  set sqlite_search_count 0
+  execsql {
+    DELETE FROM t1;
+  }
+  set sqlite_search_count
+} {0}
+
+do_test auth3-2.2 {
+  set ::authcode SQLITE_IGNORE
+  execsql {
+    INSERT INTO t1 VALUES(1, 2, 3);
+    INSERT INTO t1 VALUES(4, 5, 6);
+  }
+  set sqlite_search_count 0
+  execsql {
+    DELETE FROM t1;
+  }
+  set sqlite_search_count
+} {1}
+
+# 2016-07-28.  A problem report from a private client complaining about
+# an authorizer failure during an ALTER TABLE.  The solution (I think) is
+# to disable the authorizer during schema parsing.
+#
+ifcapable altertable {
+  proc auth {code args} {
+    if {$code=="SQLITE_READ" && [regexp {DoNotRead} $args]} {
+      return SQLITE_DENY
+    }
+    return SQLITE_OK
+  }
+  do_execsql_test auth3-3.0 {
+    CREATE TEMPORARY TABLE TempTable (
+        key TEXT NOT NULL ON CONFLICT FAIL UNIQUE ON CONFLICT REPLACE,
+        value TEXT NOT NULL ON CONFLICT FAIL);
+    ALTER TABLE TempTable RENAME TO DoNotRead;
+    SELECT name FROM temp.sqlite_master;
+  } {DoNotRead sqlite_autoindex_DoNotRead_1}
+}
+
+finish_test
diff --git a/test/autoanalyze1.test b/test/autoanalyze1.test
new file mode 100644
index 0000000000000000000000000000000000000000..71e5d6c163416bcfb60f747a0753096d910c58fc
--- /dev/null
+++ b/test/autoanalyze1.test
@@ -0,0 +1,123 @@
+# 2017-02-17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements tests for the logic used to estimate when
+# running ANALYZE would be beneficial.
+#
+# Note that this test uses some hard-coded bitmask values from sqliteInt.h.
+# If any of the following constants changes:
+#
+#    define TF_HasStat1   0x0010
+#    define TF_StatsUsed  0x0100
+#
+# then some of the magic numbers in test results below might need to be
+# adjusted.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# There is nothing to test if ANALYZE is disable for this build.
+# These tests also use "PRAGMA stats" which are only enabled for
+# debugging builds.
+#
+ifcapable {!debug || !analyze || !vtab} {
+  finish_test
+  return
+}
+
+do_execsql_test autoanalyze1-100 {
+  -- Build up a test table with some indexes
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c, d);
+  CREATE UNIQUE INDEX t1bc ON t1(b,c);
+  CREATE INDEX t1d ON t1(d);
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<100)
+    INSERT INTO t1(a,b,c,d) SELECT x, x, x, x FROM c;
+  -- Verify that the hasStat1 flag is clear on on indexes
+  SELECT idx, flgs FROM pragma_stats
+   WHERE idx IS NOT NULL
+   ORDER BY idx;
+  -- Verify that the TF_HasStat1 flag is clear on the table
+  SELECT tbl, (flgs & 0x10)!=0 FROM pragma_stats WHERE tbl='t1' AND idx IS NULL;
+} {t1bc 0 t1d 0 t1 0}
+
+# No use of stat1 recorded so far
+do_execsql_test autoanalyze1-110 {
+  SELECT (flgs & 0x0100)!=0 FROM pragma_stats WHERE tbl='t1' AND idx IS NULL;
+} {0}
+
+# Access using a unique index does not set the TF_StatsUsed flag.
+#
+do_execsql_test autoanalyze1-200 {
+  SELECT * FROM t1 WHERE a=55;
+} {55 55 55 55}
+do_execsql_test autoanalyze1-201 {
+  SELECT (flgs & 0x0100)!=0 FROM pragma_stats WHERE tbl='t1' AND idx IS NULL;
+} {0}
+
+do_execsql_test autoanalyze1-210 {
+  SELECT * FROM t1 WHERE a IN (55,199,299);
+} {55 55 55 55}
+do_execsql_test autoanalyze1-211 {
+  SELECT (flgs & 0x0100)!=0 FROM pragma_stats WHERE tbl='t1' AND idx IS NULL;
+} {0}
+
+do_execsql_test autoanalyze1-220 {
+  SELECT * FROM t1 WHERE (b,c)=(45,45);
+} {45 45 45 45}
+do_execsql_test autoanalyze1-221 {
+  SELECT (flgs & 0x0100)!=0 FROM pragma_stats WHERE tbl='t1' AND idx IS NULL;
+} {0}
+
+# Any use of the non-unique t1d index triggers the use of stats.
+#
+sqlite3 db test.db
+do_execsql_test autoanalyze1-300 {
+  SELECT * FROM t1 WHERE d=45;
+} {45 45 45 45}
+do_execsql_test autoanalyze1-301 {
+  SELECT (flgs & 0x0100)!=0 FROM pragma_stats WHERE tbl='t1' AND idx IS NULL;
+} {1}
+
+sqlite3 db test.db
+do_execsql_test autoanalyze1-310 {
+  SELECT * FROM t1 WHERE d=45 AND a=45;
+} {45 45 45 45}
+do_execsql_test autoanalyze1-311 {
+  SELECT (flgs & 0x0100)!=0 FROM pragma_stats WHERE tbl='t1' AND idx IS NULL;
+} {0}  ;# The ROWID lookup short-circuits the d=45 constraint
+
+sqlite3 db test.db
+do_execsql_test autoanalyze1-320 {
+  SELECT * FROM t1 WHERE d=45 AND a IN (45,46);
+} {45 45 45 45}
+do_execsql_test autoanalyze1-321 {
+  SELECT (flgs & 0x0100)!=0 FROM pragma_stats WHERE tbl='t1' AND idx IS NULL;
+} {1}
+
+# Any use of prefix of a unique index triggers the use of stats
+#
+sqlite3 db test.db
+do_execsql_test autoanalyze1-400 {
+  SELECT * FROM t1 WHERE b=45;
+} {45 45 45 45}
+do_execsql_test autoanalyze1-401 {
+  SELECT (flgs & 0x0100)!=0 FROM pragma_stats WHERE tbl='t1' AND idx IS NULL;
+} {1}
+
+# The TF_StatsUsed flag is reset when the database is reopened
+#
+sqlite3 db test.db
+do_execsql_test autoanalyze1-500 {
+  SELECT (flgs & 0x0100)!=0 FROM pragma_stats WHERE tbl='t1' AND idx IS NULL;
+} {0}
+
+finish_test
diff --git a/test/autoinc.test b/test/autoinc.test
new file mode 100644
index 0000000000000000000000000000000000000000..2c7ee2a7e86504ba92eea49d53553c4b516c3d3c
--- /dev/null
+++ b/test/autoinc.test
@@ -0,0 +1,883 @@
+# 2004 November 12
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the AUTOINCREMENT features.
+#
+# $Id: autoinc.test,v 1.14 2009/06/23 20:28:54 drh Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix autoinc
+
+# If the library is not compiled with autoincrement support then
+# skip all tests in this file.
+#
+ifcapable {!autoinc} {
+  finish_test
+  return
+}
+
+if {[permutation]=="inmemory_journal"} {
+  finish_test
+  return
+}
+
+sqlite3_db_config_lookaside db 0 0 0
+
+# The database is initially empty.
+#
+do_test autoinc-1.1 {
+  execsql {
+    SELECT name FROM sqlite_master WHERE type='table';
+  }
+} {}
+
+# Add a table with the AUTOINCREMENT feature.  Verify that the
+# SQLITE_SEQUENCE table gets created.
+#
+do_test autoinc-1.2 {
+  execsql {
+    CREATE TABLE t1(x INTEGER PRIMARY KEY AUTOINCREMENT, y);
+    SELECT name FROM sqlite_master WHERE type='table';
+  }
+} {t1 sqlite_sequence}
+
+# The SQLITE_SEQUENCE table is initially empty
+#
+do_test autoinc-1.3 {
+  execsql {
+    SELECT * FROM sqlite_sequence;
+  }
+} {}
+do_test autoinc-1.3.1 {
+  catchsql {
+    CREATE INDEX seqidx ON sqlite_sequence(name)
+  }
+} {1 {table sqlite_sequence may not be indexed}}
+
+# Close and reopen the database.  Verify that everything is still there.
+#
+do_test autoinc-1.4 {
+  db close
+  sqlite3 db test.db
+  execsql {
+    SELECT * FROM sqlite_sequence;
+  }
+} {}
+
+# We are not allowed to drop the sqlite_sequence table.
+#
+do_test autoinc-1.5 {
+  catchsql {DROP TABLE sqlite_sequence}
+} {1 {table sqlite_sequence may not be dropped}}
+do_test autoinc-1.6 {
+  execsql {SELECT name FROM sqlite_master WHERE type='table'}
+} {t1 sqlite_sequence}
+
+# Insert an entries into the t1 table and make sure the largest key
+# is always recorded in the sqlite_sequence table.
+#
+do_test autoinc-2.1 {
+  execsql {
+    SELECT * FROM sqlite_sequence
+  }
+} {}
+do_test autoinc-2.2 {
+  execsql {
+    INSERT INTO t1 VALUES(12,34);
+    SELECT * FROM sqlite_sequence;
+  }
+} {t1 12}
+do_test autoinc-2.3 {
+  execsql {
+    INSERT INTO t1 VALUES(1,23);
+    SELECT * FROM sqlite_sequence;
+  }
+} {t1 12}
+do_test autoinc-2.4 {
+  execsql {
+    INSERT INTO t1 VALUES(123,456);
+    SELECT * FROM sqlite_sequence;
+  }
+} {t1 123}
+do_test autoinc-2.5 {
+  execsql {
+    INSERT INTO t1 VALUES(NULL,567);
+    SELECT * FROM sqlite_sequence;
+  }
+} {t1 124}
+do_test autoinc-2.6 {
+  execsql {
+    DELETE FROM t1 WHERE y=567;
+    SELECT * FROM sqlite_sequence;
+  }
+} {t1 124}
+do_test autoinc-2.7 {
+  execsql {
+    INSERT INTO t1 VALUES(NULL,567);
+    SELECT * FROM sqlite_sequence;
+  }
+} {t1 125}
+do_test autoinc-2.8 {
+  execsql {
+    DELETE FROM t1;
+    SELECT * FROM sqlite_sequence;
+  }
+} {t1 125}
+do_test autoinc-2.9 {
+  execsql {
+    INSERT INTO t1 VALUES(12,34);
+    SELECT * FROM sqlite_sequence;
+  }
+} {t1 125}
+do_test autoinc-2.10 {
+  execsql {
+    INSERT INTO t1 VALUES(125,456);
+    SELECT * FROM sqlite_sequence;
+  }
+} {t1 125}
+do_test autoinc-2.11 {
+  execsql {
+    INSERT INTO t1 VALUES(-1234567,-1);
+    SELECT * FROM sqlite_sequence;
+  }
+} {t1 125}
+do_test autoinc-2.12 {
+  execsql {
+    INSERT INTO t1 VALUES(234,5678);
+    SELECT * FROM sqlite_sequence;
+  }
+} {t1 234}
+do_test autoinc-2.13 {
+  execsql {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES(NULL,1);
+    SELECT * FROM sqlite_sequence;
+  }
+} {t1 235}
+do_test autoinc-2.14 {
+  execsql {
+    SELECT * FROM t1;
+  }
+} {235 1}
+
+# Manually change the autoincrement values in sqlite_sequence.
+#
+do_test autoinc-2.20 {
+  execsql {
+    UPDATE sqlite_sequence SET seq=1234 WHERE name='t1';
+    INSERT INTO t1 VALUES(NULL,2);
+    SELECT * FROM t1;
+  }
+} {235 1 1235 2}
+do_test autoinc-2.21 {
+  execsql {
+    SELECT * FROM sqlite_sequence;
+  }
+} {t1 1235}
+do_test autoinc-2.22 {
+  execsql {
+    UPDATE sqlite_sequence SET seq=NULL WHERE name='t1';
+    INSERT INTO t1 VALUES(NULL,3);
+    SELECT * FROM t1;
+  }
+} {235 1 1235 2 1236 3}
+do_test autoinc-2.23 {
+  execsql {
+    SELECT * FROM sqlite_sequence;
+  }
+} {t1 1236}
+do_test autoinc-2.24 {
+  execsql {
+    UPDATE sqlite_sequence SET seq='a-string' WHERE name='t1';
+    INSERT INTO t1 VALUES(NULL,4);
+    SELECT * FROM t1;
+  }
+} {235 1 1235 2 1236 3 1237 4}
+do_test autoinc-2.25 {
+  execsql {
+    SELECT * FROM sqlite_sequence;
+  }
+} {t1 1237}
+do_test autoinc-2.26 {
+  execsql {
+    DELETE FROM sqlite_sequence WHERE name='t1';
+    INSERT INTO t1 VALUES(NULL,5);
+    SELECT * FROM t1;
+  }
+} {235 1 1235 2 1236 3 1237 4 1238 5}
+do_test autoinc-2.27 {
+  execsql {
+    SELECT * FROM sqlite_sequence;
+  }
+} {t1 1238}
+do_test autoinc-2.28 {
+  execsql {
+    UPDATE sqlite_sequence SET seq='-12345678901234567890'
+      WHERE name='t1';
+    INSERT INTO t1 VALUES(NULL,6);
+    SELECT * FROM t1;
+  }
+} {235 1 1235 2 1236 3 1237 4 1238 5 1239 6}
+do_test autoinc-2.29 {
+  execsql {
+    SELECT * FROM sqlite_sequence;
+  }
+} {t1 1239}
+
+# Test multi-row inserts
+#
+do_test autoinc-2.50 {
+  execsql {
+    DELETE FROM t1 WHERE y>=3;
+    INSERT INTO t1 SELECT NULL, y+2 FROM t1;
+    SELECT * FROM t1;
+  }
+} {235 1 1235 2 1240 3 1241 4}
+do_test autoinc-2.51 {
+  execsql {
+    SELECT * FROM sqlite_sequence
+  }
+} {t1 1241}
+
+ifcapable tempdb {
+  do_test autoinc-2.52 {
+    execsql {
+      CREATE TEMP TABLE t2 AS SELECT y FROM t1;
+    }
+    execsql {
+      INSERT INTO t1 SELECT NULL, y+4 FROM t2;
+      SELECT * FROM t1;
+    }
+  } {235 1 1235 2 1240 3 1241 4 1242 5 1243 6 1244 7 1245 8}
+  do_test autoinc-2.53 {
+    execsql {
+      SELECT * FROM sqlite_sequence
+    }
+  } {t1 1245}
+  do_test autoinc-2.54 {
+    execsql {
+      DELETE FROM t1;
+      INSERT INTO t1 SELECT NULL, y FROM t2;
+      SELECT * FROM t1;
+    }
+  } {1246 1 1247 2 1248 3 1249 4}
+  do_test autoinc-2.55 {
+    execsql {
+      SELECT * FROM sqlite_sequence
+    }
+  } {t1 1249}
+}
+
+# Create multiple AUTOINCREMENT tables.  Make sure all sequences are
+# tracked separately and do not interfere with one another.
+#
+do_test autoinc-2.70 {
+  catchsql {
+    DROP TABLE t2;
+  }
+  execsql {
+    CREATE TABLE t2(d, e INTEGER PRIMARY KEY AUTOINCREMENT, f);
+    INSERT INTO t2(d) VALUES(1);
+    SELECT * FROM sqlite_sequence;
+  }
+} [ifcapable tempdb {list t1 1249 t2 1} else {list t1 1241 t2 1}]
+do_test autoinc-2.71 {
+  execsql {
+    INSERT INTO t2(d) VALUES(2);
+    SELECT * FROM sqlite_sequence;
+  }
+} [ifcapable tempdb {list t1 1249 t2 2} else {list t1 1241 t2 2}]
+do_test autoinc-2.72 {
+  execsql {
+    INSERT INTO t1(x) VALUES(10000);
+    SELECT * FROM sqlite_sequence;
+  }
+} {t1 10000 t2 2}
+do_test autoinc-2.73 {
+  execsql {
+    CREATE TABLE t3(g INTEGER PRIMARY KEY AUTOINCREMENT, h);
+    INSERT INTO t3(h) VALUES(1);
+    SELECT * FROM sqlite_sequence;
+  }
+} {t1 10000 t2 2 t3 1}
+do_test autoinc-2.74 {
+  execsql {
+    INSERT INTO t2(d,e) VALUES(3,100);
+    SELECT * FROM sqlite_sequence;
+  }
+} {t1 10000 t2 100 t3 1}
+
+
+# When a table with an AUTOINCREMENT is deleted, the corresponding entry
+# in the SQLITE_SEQUENCE table should also be deleted.  But the SQLITE_SEQUENCE
+# table itself should remain behind.
+#
+do_test autoinc-3.1 {
+  execsql {SELECT name FROM sqlite_sequence}
+} {t1 t2 t3}
+do_test autoinc-3.2 {
+  execsql {
+    DROP TABLE t1;
+    SELECT name FROM sqlite_sequence;
+  }
+} {t2 t3}
+do_test autoinc-3.3 {
+  execsql {
+    DROP TABLE t3;
+    SELECT name FROM sqlite_sequence;
+  }
+} {t2}
+do_test autoinc-3.4 {
+  execsql {
+    DROP TABLE t2;
+    SELECT name FROM sqlite_sequence;
+  }
+} {}
+
+# AUTOINCREMENT on TEMP tables.
+#
+ifcapable tempdb {
+  do_test autoinc-4.1 {
+    execsql {
+      SELECT 1, name FROM sqlite_master WHERE type='table';
+      SELECT 2, name FROM temp.sqlite_master WHERE type='table';
+    }
+  } {1 sqlite_sequence}
+  do_test autoinc-4.2 {
+    execsql {
+      CREATE TABLE t1(x INTEGER PRIMARY KEY AUTOINCREMENT, y);
+      CREATE TEMP TABLE t3(a INTEGER PRIMARY KEY AUTOINCREMENT, b);
+      SELECT 1, name FROM sqlite_master WHERE type='table';
+      SELECT 2, name FROM sqlite_temp_master WHERE type='table';
+    }
+  } {1 sqlite_sequence 1 t1 2 t3 2 sqlite_sequence}
+  do_test autoinc-4.3 {
+    execsql {
+      SELECT 1, * FROM main.sqlite_sequence;
+      SELECT 2, * FROM temp.sqlite_sequence;
+    }
+  } {}
+  do_test autoinc-4.4 {
+    execsql {
+      INSERT INTO t1 VALUES(10,1);
+      INSERT INTO t3 VALUES(20,2);
+      INSERT INTO t1 VALUES(NULL,3);
+      INSERT INTO t3 VALUES(NULL,4);
+    }
+  } {}
+  
+  ifcapable compound {
+  do_test autoinc-4.4.1 {
+    execsql {
+      SELECT * FROM t1 UNION ALL SELECT * FROM t3;
+    }
+  } {10 1 11 3 20 2 21 4}
+  } ;# ifcapable compound
+  
+  do_test autoinc-4.5 {
+    execsql {
+      SELECT 1, * FROM main.sqlite_sequence;
+      SELECT 2, * FROM temp.sqlite_sequence;
+    }
+  } {1 t1 11 2 t3 21}
+  do_test autoinc-4.6 {
+    execsql {
+      INSERT INTO t1 SELECT * FROM t3;
+      SELECT 1, * FROM main.sqlite_sequence;
+      SELECT 2, * FROM temp.sqlite_sequence;
+    }
+  } {1 t1 21 2 t3 21}
+  do_test autoinc-4.7 {
+    execsql {
+      INSERT INTO t3 SELECT x+100, y  FROM t1;
+      SELECT 1, * FROM main.sqlite_sequence;
+      SELECT 2, * FROM temp.sqlite_sequence;
+    }
+  } {1 t1 21 2 t3 121}
+  do_test autoinc-4.8 {
+    execsql {
+      DROP TABLE t3;
+      SELECT 1, * FROM main.sqlite_sequence;
+      SELECT 2, * FROM temp.sqlite_sequence;
+    }
+  } {1 t1 21}
+  do_test autoinc-4.9 {
+    execsql {
+      CREATE TEMP TABLE t2(p INTEGER PRIMARY KEY AUTOINCREMENT, q);
+      INSERT INTO t2 SELECT * FROM t1;
+      DROP TABLE t1;
+      SELECT 1, * FROM main.sqlite_sequence;
+      SELECT 2, * FROM temp.sqlite_sequence;
+    }
+  } {2 t2 21}
+  do_test autoinc-4.10 {
+    execsql {
+      DROP TABLE t2;
+      SELECT 1, * FROM main.sqlite_sequence;
+      SELECT 2, * FROM temp.sqlite_sequence;
+    }
+  } {}
+}
+
+# Make sure AUTOINCREMENT works on ATTACH-ed tables.
+#
+ifcapable tempdb&&attach {
+  do_test autoinc-5.1 {
+    forcedelete test2.db
+    forcedelete test2.db-journal
+    sqlite3 db2 test2.db
+    execsql {
+      CREATE TABLE t4(m INTEGER PRIMARY KEY AUTOINCREMENT, n);
+      CREATE TABLE t5(o, p INTEGER PRIMARY KEY AUTOINCREMENT);
+    } db2;
+    execsql {
+      ATTACH 'test2.db' as aux;
+      SELECT 1, * FROM main.sqlite_sequence;
+      SELECT 2, * FROM temp.sqlite_sequence;
+      SELECT 3, * FROM aux.sqlite_sequence;
+    }
+  } {}
+  do_test autoinc-5.2 {
+    execsql {
+      INSERT INTO t4 VALUES(NULL,1);
+      SELECT 1, * FROM main.sqlite_sequence;
+      SELECT 2, * FROM temp.sqlite_sequence;
+      SELECT 3, * FROM aux.sqlite_sequence;
+    }
+  } {3 t4 1}
+  do_test autoinc-5.3 {
+    execsql {
+      INSERT INTO t5 VALUES(100,200);
+      SELECT * FROM sqlite_sequence
+    } db2
+  } {t4 1 t5 200}
+  do_test autoinc-5.4 {
+    execsql {
+      SELECT 1, * FROM main.sqlite_sequence;
+      SELECT 2, * FROM temp.sqlite_sequence;
+      SELECT 3, * FROM aux.sqlite_sequence;
+    }
+  } {3 t4 1 3 t5 200}
+}
+
+# Requirement REQ00310:  Make sure an insert fails if the sequence is
+# already at its maximum value.
+#
+ifcapable {rowid32} {
+  do_test autoinc-6.1 {
+    execsql {
+      CREATE TABLE t6(v INTEGER PRIMARY KEY AUTOINCREMENT, w);
+      INSERT INTO t6 VALUES(2147483647,1);
+      SELECT seq FROM main.sqlite_sequence WHERE name='t6';
+    }
+  } 2147483647
+}
+ifcapable {!rowid32} {
+  do_test autoinc-6.1 {
+    execsql {
+      CREATE TABLE t6(v INTEGER PRIMARY KEY AUTOINCREMENT, w);
+      INSERT INTO t6 VALUES(9223372036854775807,1);
+      SELECT seq FROM main.sqlite_sequence WHERE name='t6';
+    }
+  } 9223372036854775807
+}
+do_test autoinc-6.2 {
+  catchsql {
+    INSERT INTO t6 VALUES(NULL,1);
+  }
+} {1 {database or disk is full}}
+
+# Allow the AUTOINCREMENT keyword inside the parentheses
+# on a separate PRIMARY KEY designation.
+#
+do_test autoinc-7.1 {
+  execsql {
+    CREATE TABLE t7(x INTEGER, y REAL, PRIMARY KEY(x AUTOINCREMENT));
+    INSERT INTO t7(y) VALUES(123);
+    INSERT INTO t7(y) VALUES(234);
+    DELETE FROM t7;
+    INSERT INTO t7(y) VALUES(345);
+    SELECT * FROM t7;
+  }
+} {3 345.0}
+
+# Test that if the AUTOINCREMENT is applied to a non integer primary key
+# the error message is sensible.
+do_test autoinc-7.2 {
+  catchsql {
+    CREATE TABLE t8(x TEXT PRIMARY KEY AUTOINCREMENT);
+  }
+} {1 {AUTOINCREMENT is only allowed on an INTEGER PRIMARY KEY}}
+
+
+# Ticket #1283.  Make sure that preparing but never running a statement
+# that creates the sqlite_sequence table does not mess up the database.
+#
+do_test autoinc-8.1 {
+  catch {db2 close}
+  catch {db close}
+  forcedelete test.db
+  sqlite3 db test.db
+  set DB [sqlite3_connection_pointer db]
+  set STMT [sqlite3_prepare $DB {
+     CREATE TABLE t1(
+       x INTEGER PRIMARY KEY AUTOINCREMENT
+     )
+  } -1 TAIL]
+  sqlite3_finalize $STMT
+  set STMT [sqlite3_prepare $DB {
+     CREATE TABLE t1(
+       x INTEGER PRIMARY KEY AUTOINCREMENT
+     )
+  } -1 TAIL]
+  sqlite3_step $STMT
+  sqlite3_finalize $STMT
+  execsql {
+    INSERT INTO t1 VALUES(NULL);
+    SELECT * FROM t1;
+  }
+} {1}
+
+# Ticket #3148
+# Make sure the sqlite_sequence table is not damaged when doing
+# an empty insert - an INSERT INTO ... SELECT ... where the SELECT
+# clause returns an empty set.
+#
+do_test autoinc-9.1 {
+  db eval {
+    CREATE TABLE t2(x INTEGER PRIMARY KEY AUTOINCREMENT, y);
+    INSERT INTO t2 VALUES(NULL, 1);
+    CREATE TABLE t3(a INTEGER PRIMARY KEY AUTOINCREMENT, b);
+    INSERT INTO t3 SELECT * FROM t2 WHERE y>1;
+
+    SELECT * FROM sqlite_sequence WHERE name='t3';
+  }
+} {t3 0}
+
+ifcapable trigger {
+  catchsql { pragma recursive_triggers = off } 
+  
+  # Ticket #3928.  Make sure that triggers to not make extra slots in
+  # the SQLITE_SEQUENCE table.
+  #
+  do_test autoinc-3928.1 {
+    db eval {
+      CREATE TABLE t3928(a INTEGER PRIMARY KEY AUTOINCREMENT, b);
+      CREATE TRIGGER t3928r1 BEFORE INSERT ON t3928 BEGIN
+        INSERT INTO t3928(b) VALUES('before1');
+        INSERT INTO t3928(b) VALUES('before2');
+      END;
+      CREATE TRIGGER t3928r2 AFTER INSERT ON t3928 BEGIN
+        INSERT INTO t3928(b) VALUES('after1');
+        INSERT INTO t3928(b) VALUES('after2');
+      END;
+      INSERT INTO t3928(b) VALUES('test');
+      SELECT * FROM t3928 ORDER BY a;
+    }
+  } {1 before1 2 after1 3 after2 4 before2 5 after1 6 after2 7 test 8 before1 9 before2 10 after1 11 before1 12 before2 13 after2}
+  do_test autoinc-3928.2 {
+    db eval {
+      SELECT * FROM sqlite_sequence WHERE name='t3928'
+    }
+  } {t3928 13}
+
+  do_test autoinc-3928.3 {
+    db eval {
+      DROP TRIGGER t3928r1;
+      DROP TRIGGER t3928r2;
+      CREATE TRIGGER t3928r3 BEFORE UPDATE ON t3928 
+        WHEN typeof(new.b)=='integer' BEGIN
+           INSERT INTO t3928(b) VALUES('before-int-' || new.b);
+      END;
+      CREATE TRIGGER t3928r4 AFTER UPDATE ON t3928 
+        WHEN typeof(new.b)=='integer' BEGIN
+           INSERT INTO t3928(b) VALUES('after-int-' || new.b);
+      END;
+      DELETE FROM t3928 WHERE a!=1;
+      UPDATE t3928 SET b=456 WHERE a=1;
+      SELECT * FROM t3928 ORDER BY a;
+    }
+  } {1 456 14 before-int-456 15 after-int-456}
+  do_test autoinc-3928.4 {
+    db eval {
+      SELECT * FROM sqlite_sequence WHERE name='t3928'
+    }
+  } {t3928 15}
+  
+  do_test autoinc-3928.5 {
+    db eval {
+      CREATE TABLE t3928b(x);
+      INSERT INTO t3928b VALUES(100);
+      INSERT INTO t3928b VALUES(200);
+      INSERT INTO t3928b VALUES(300);
+      DELETE FROM t3928;
+      CREATE TABLE t3928c(y INTEGER PRIMARY KEY AUTOINCREMENT, z);
+      CREATE TRIGGER t3928br1 BEFORE DELETE ON t3928b BEGIN
+        INSERT INTO t3928(b) VALUES('before-del-'||old.x);
+        INSERT INTO t3928c(z) VALUES('before-del-'||old.x);
+      END;
+      CREATE TRIGGER t3928br2 AFTER DELETE ON t3928b BEGIN
+        INSERT INTO t3928(b) VALUES('after-del-'||old.x);
+        INSERT INTO t3928c(z) VALUES('after-del-'||old.x);
+      END;
+      DELETE FROM t3928b;
+      SELECT * FROM t3928 ORDER BY a;
+    }
+  } {16 before-del-100 17 after-del-100 18 before-del-200 19 after-del-200 20 before-del-300 21 after-del-300}
+  do_test autoinc-3928.6 {
+    db eval {
+      SELECT * FROM t3928c ORDER BY y;
+    }
+  } {1 before-del-100 2 after-del-100 3 before-del-200 4 after-del-200 5 before-del-300 6 after-del-300}
+  do_test autoinc-3928.7 {
+    db eval {
+      SELECT * FROM sqlite_sequence WHERE name LIKE 't3928%' ORDER BY name;
+    }
+  } {t3928 21 t3928c 6}
+  
+  # Ticket [a696379c1f0886615541a48b35bd8181a80e88f8]
+  do_test autoinc-a69637.1 {
+    db eval {
+      CREATE TABLE ta69637_1(x INTEGER PRIMARY KEY AUTOINCREMENT, y);
+      CREATE TABLE ta69637_2(z);
+      CREATE TRIGGER ra69637_1 AFTER INSERT ON ta69637_2 BEGIN
+        INSERT INTO ta69637_1(y) VALUES(new.z+1);
+      END;
+      INSERT INTO ta69637_2 VALUES(123);
+      SELECT * FROM ta69637_1;
+    }
+  } {1 124}
+  do_test autoinc-a69637.2 {
+    db eval {
+      CREATE VIEW va69637_2 AS SELECT * FROM ta69637_2;
+      CREATE TRIGGER ra69637_2 INSTEAD OF INSERT ON va69637_2 BEGIN
+        INSERT INTO ta69637_1(y) VALUES(new.z+10000);
+      END;
+      INSERT INTO va69637_2 VALUES(123);
+      SELECT * FROM ta69637_1;
+    }
+  } {1 124 2 10123}
+}
+
+# 2016-10-03 ticket https://www.sqlite.org/src/tktview/7b3328086a5c1
+# Make sure autoincrement plays nicely with the xfer optimization
+#
+do_execsql_test autoinc-10.1 {
+  DELETE FROM sqlite_sequence;
+  CREATE TABLE t10a(a INTEGER PRIMARY KEY AUTOINCREMENT, b UNIQUE);
+  INSERT INTO t10a VALUES(888,9999);
+  CREATE TABLE t10b(x INTEGER PRIMARY KEY AUTOINCREMENT, y UNIQUE);
+  INSERT INTO t10b SELECT * FROM t10a;
+  SELECT * FROM sqlite_sequence;
+} {t10a 888 t10b 888}
+
+# 2018-04-21 autoincrement does not cause problems for upsert
+#
+do_execsql_test autoinc-11.1 {
+  CREATE TABLE t11(a INTEGER PRIMARY KEY AUTOINCREMENT,b UNIQUE);
+  INSERT INTO t11(a,b) VALUES(2,3),(5,6),(4,3),(1,2)
+    ON CONFLICT(b) DO UPDATE SET a=a+1000;
+  SELECT seq FROM sqlite_sequence WHERE name='t11';
+} {5}
+
+# 2018-05-23 ticket d8dc2b3a58cd5dc2918a1d4acbba4676a23ada4c
+# Does not crash if the sqlite_sequence table schema is missing
+# or corrupt.
+#
+do_test autoinc-12.1 {
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+  sqlite3_db_config db DEFENSIVE 0
+  db eval {
+    CREATE TABLE fake_sequence(name TEXT PRIMARY KEY,seq) WITHOUT ROWID;
+    PRAGMA writable_schema=on;
+    UPDATE sqlite_master SET
+     sql=replace(sql,'fake_','sqlite_'),
+     name='sqlite_sequence',
+     tbl_name='sqlite_sequence'
+     WHERE name='fake_sequence';
+  }
+  db close
+  sqlite3 db test.db
+  set res [catch {db eval {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY AUTOINCREMENT, b TEXT);
+    INSERT INTO t1(b) VALUES('one');
+  }} msg]
+  lappend res $msg
+} {1 {database disk image is malformed}}
+do_test autoinc-12.2 {
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+  sqlite3_db_config db DEFENSIVE 0
+  db eval {
+   CREATE TABLE t1(a INTEGER PRIMARY KEY AUTOINCREMENT, b TEXT);
+   INSERT INTO t1(b) VALUES('one');
+   PRAGMA writable_schema=on;
+   UPDATE sqlite_master SET
+     sql=replace(sql,'sqlite_','x_'),
+     name='x_sequence',
+     tbl_name='x_sequence'
+    WHERE name='sqlite_sequence';
+  }
+  db close
+  sqlite3 db test.db
+  set res [catch {db eval {
+    INSERT INTO t1(b) VALUES('two');
+  }} msg]
+  lappend res $msg
+} {1 {database disk image is malformed}}
+ifcapable vtab {
+  set err "database disk image is malformed"
+} else {
+  set err {malformed database schema (sqlite_sequence) - near "VIRTUAL": syntax error}
+}
+do_test autoinc-12.3 {
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+  sqlite3_db_config db DEFENSIVE 0
+  db eval {
+   CREATE TABLE t1(a INTEGER PRIMARY KEY AUTOINCREMENT, b TEXT);
+   INSERT INTO t1(b) VALUES('one');
+   PRAGMA writable_schema=on;
+   UPDATE sqlite_master SET
+     sql='CREATE VIRTUAL TABLE sqlite_sequence USING sqlite_dbpage'
+    WHERE name='sqlite_sequence';
+  }
+  db close
+  sqlite3 db test.db
+  set res [catch {db eval {
+    INSERT INTO t1(b) VALUES('two');
+  }} msg]
+  lappend res $msg
+} [list 1 $err]
+do_test autoinc-12.4 {
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+  db eval {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY AUTOINCREMENT, b TEXT);
+    INSERT INTO t1(b) VALUES('one');
+    CREATE TABLE fake(name TEXT PRIMARY KEY,seq) WITHOUT ROWID;
+  }
+  set root1 [db one {SELECT rootpage FROM sqlite_master
+                     WHERE name='sqlite_sequence'}]
+  set root2 [db one {SELECT rootpage FROM sqlite_master
+                     WHERE name='fake'}]
+  sqlite3_db_config db DEFENSIVE 0
+  db eval {
+   PRAGMA writable_schema=on;
+   UPDATE sqlite_master SET rootpage=$root2
+    WHERE name='sqlite_sequence';
+   UPDATE sqlite_master SET rootpage=$root1
+    WHERE name='fake';
+  }
+  db close
+  sqlite3 db test.db
+  set res [catch {db eval {
+    INSERT INTO t1(b) VALUES('two');
+  }} msg]
+  lappend res $msg
+} {1 {database disk image is malformed}}
+breakpoint
+do_test autoinc-12.5 {
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+  sqlite3_db_config db DEFENSIVE 0
+  db eval {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY AUTOINCREMENT, b TEXT);
+    INSERT INTO t1(b) VALUES('one');
+    PRAGMA writable_schema=on;
+    UPDATE sqlite_master SET
+       sql='CREATE TABLE sqlite_sequence(x)'
+      WHERE name='sqlite_sequence';
+  }
+  db close
+  sqlite3 db test.db
+  set res [catch {db eval {
+    INSERT INTO t1(b) VALUES('two');
+  }} msg]
+  lappend res $msg
+} {1 {database disk image is malformed}}
+do_test autoinc-12.6 {
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+  sqlite3_db_config db DEFENSIVE 0
+  db eval {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY AUTOINCREMENT, b TEXT);
+    INSERT INTO t1(b) VALUES('one');
+    PRAGMA writable_schema=on;
+    UPDATE sqlite_master SET
+       sql='CREATE TABLE sqlite_sequence(x,y INTEGER PRIMARY KEY)'
+      WHERE name='sqlite_sequence';
+  }
+  db close
+  sqlite3 db test.db
+  set res [catch {db eval {
+    INSERT INTO t1(b) VALUES('two'),('three'),('four');
+    INSERT INTO t1(b) VALUES('five');
+    PRAGMA integrity_check;
+  }} msg]
+  lappend res $msg
+} {0 ok}
+do_test autoinc-12.7 {
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+  sqlite3_db_config db DEFENSIVE 0
+  db eval {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY AUTOINCREMENT, b TEXT);
+    INSERT INTO t1(b) VALUES('one');
+    PRAGMA writable_schema=on;
+    UPDATE sqlite_master SET
+       sql='CREATE TABLE sqlite_sequence(y INTEGER PRIMARY KEY,x)'
+      WHERE name='sqlite_sequence';
+  }
+  db close
+  sqlite3 db test.db
+  set res [catch {db eval {
+    INSERT INTO t1(b) VALUES('two'),('three'),('four');
+    INSERT INTO t1(b) VALUES('five');
+    PRAGMA integrity_check;
+  }} msg]
+  lappend res $msg
+} {0 ok}
+
+#--------------------------------------------------------------------------
+reset_db
+do_execsql_test 13.0 {
+  CREATE TABLE t1(i INTEGER PRIMARY KEY AUTOINCREMENT, j);
+  CREATE TABLE t2(i INTEGER PRIMARY KEY AUTOINCREMENT, j);
+  CREATE TABLE t3(i INTEGER PRIMARY KEY AUTOINCREMENT, j);
+
+  INSERT INTO t1 VALUES(NULL, 1);
+  INSERT INTO t2 VALUES(NULL, 2);
+  INSERT INTO t3 VALUES(NULL, 3);
+
+  SELECT name FROM sqlite_sequence;
+} {t1 t2 t3}
+
+do_execsql_test 13.1 {
+  UPDATE sqlite_sequence SET name=NULL WHERE name='t2';
+  INSERT INTO t3 VALUES(NULL, 4);
+  DELETE FROM t3;
+  INSERT INTO t3 VALUES(NULL, 5);
+  SELECT * FROM t3;
+} {3 5}
+
+
+finish_test
diff --git a/test/autoindex1.test b/test/autoindex1.test
new file mode 100644
index 0000000000000000000000000000000000000000..b294a2721f5fa637304e9fdc368ad046ec849d3d
--- /dev/null
+++ b/test/autoindex1.test
@@ -0,0 +1,566 @@
+# 2010 April 07
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing automatic index creation logic.
+#
+# EVIDENCE-OF: R-34271-33106 PRAGMA automatic_index; PRAGMA
+# automatic_index = boolean; Query, set, or clear the automatic indexing
+# capability.
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If the library is not compiled with automatic index support then
+# skip all tests in this file.
+#
+ifcapable {!autoindex} {
+  finish_test
+  return
+}
+
+# Setup for logging 
+db close
+sqlite3_shutdown
+test_sqlite3_log [list lappend ::log]
+set ::log [list]
+sqlite3 db test.db
+
+
+# With automatic index turned off, we do a full scan of the T2 table
+do_test autoindex1-100 {
+  db eval {
+    CREATE TABLE t1(a,b);
+    INSERT INTO t1 VALUES(1,11);
+    INSERT INTO t1 VALUES(2,22);
+    INSERT INTO t1 SELECT a+2, b+22 FROM t1;
+    INSERT INTO t1 SELECT a+4, b+44 FROM t1;
+    CREATE TABLE t2(c,d);
+    INSERT INTO t2 SELECT a, 900+b FROM t1;
+  }
+  db eval {
+    PRAGMA automatic_index=OFF;
+    SELECT b, d FROM t1 JOIN t2 ON a=c ORDER BY b;
+  }
+} {11 911 22 922 33 933 44 944 55 955 66 966 77 977 88 988}
+do_test autoindex1-101 {
+  db status step
+} {63}
+do_test autoindex1-102 {
+  db status autoindex
+} {0}
+
+# With autoindex turned on, we build an index once and then use that index
+# to find T2 values.
+do_test autoindex1-110 {
+  db eval {
+    PRAGMA automatic_index=ON;
+    SELECT b, d FROM t1 JOIN t2 ON a=c ORDER BY b;
+  }
+} {11 911 22 922 33 933 44 944 55 955 66 966 77 977 88 988}
+do_test autoindex1-111 {
+  db status step
+} {7}
+do_test autoindex1-112 {
+  db status autoindex
+} {7}
+do_test autoindex1-113 {
+  set ::log
+} {SQLITE_WARNING_AUTOINDEX {automatic index on t2(c)}}
+
+db close
+sqlite3_shutdown
+test_sqlite3_log
+sqlite3_initialize
+sqlite3 db test.db
+
+# The same test as above, but this time the T2 query is a subquery rather
+# than a join.
+do_test autoindex1-200 {
+  db eval {
+    PRAGMA automatic_index=OFF;
+    SELECT b, (SELECT d FROM t2 WHERE c=a) FROM t1;
+  }
+} {11 911 22 922 33 933 44 944 55 955 66 966 77 977 88 988}
+do_test autoindex1-201 {
+  db status step
+} {35}
+do_test autoindex1-202 {
+  db status autoindex
+} {0}
+do_test autoindex1-210 {
+  db eval {
+    PRAGMA automatic_index=ON;
+    ANALYZE;
+    UPDATE sqlite_stat1 SET stat='10000' WHERE tbl='t1';
+    -- Table t2 actually contains 8 rows.
+    UPDATE sqlite_stat1 SET stat='16' WHERE tbl='t2';
+    ANALYZE sqlite_master;
+    SELECT b, (SELECT d FROM t2 WHERE c=a) FROM t1;
+  }
+} {11 911 22 922 33 933 44 944 55 955 66 966 77 977 88 988}
+do_test autoindex1-211 {
+  db status step
+} {7}
+do_test autoindex1-212 {
+  db status autoindex
+} {7}
+
+
+# Modify the second table of the join while the join is in progress
+#
+do_execsql_test autoindex1-299 {
+  UPDATE sqlite_stat1 SET stat='10000' WHERE tbl='t2';
+  ANALYZE sqlite_master;
+  EXPLAIN QUERY PLAN
+  SELECT b, d FROM t1 CROSS JOIN t2 ON (c=a);
+} {/AUTOMATIC COVERING INDEX/}
+do_test autoindex1-300 {
+  set r {}
+  db eval {SELECT b, d FROM t1 CROSS JOIN t2 ON (c=a)} {
+    lappend r $b $d
+    db eval {UPDATE t2 SET d=d+1}
+  }
+  set r
+} {11 911 22 922 33 933 44 944 55 955 66 966 77 977 88 988}
+do_test autoindex1-310 {
+  db eval {SELECT d FROM t2 ORDER BY d}
+} {919 930 941 952 963 974 985 996}
+
+# The next test does a 10-way join on unindexed tables.  Without
+# automatic indices, the join will take a long time to complete.
+# With automatic indices, it should only take about a second.
+#
+do_test autoindex1-400 {
+  db eval {
+    CREATE TABLE t4(a, b);
+    INSERT INTO t4 VALUES(1,2);
+    INSERT INTO t4 VALUES(2,3);
+  }
+  for {set n 2} {$n<4096} {set n [expr {$n+$n}]} {
+    db eval {INSERT INTO t4 SELECT a+$n, b+$n FROM t4}
+  }
+  db eval {
+    SELECT count(*) FROM t4;
+  }
+} {4096}
+do_test autoindex1-401 {
+  db eval {
+    SELECT count(*)
+      FROM t4 AS x1
+      JOIN t4 AS x2 ON x2.a=x1.b
+      JOIN t4 AS x3 ON x3.a=x2.b
+      JOIN t4 AS x4 ON x4.a=x3.b
+      JOIN t4 AS x5 ON x5.a=x4.b
+      JOIN t4 AS x6 ON x6.a=x5.b
+      JOIN t4 AS x7 ON x7.a=x6.b
+      JOIN t4 AS x8 ON x8.a=x7.b
+      JOIN t4 AS x9 ON x9.a=x8.b
+      JOIN t4 AS x10 ON x10.a=x9.b;
+  }
+} {4087}
+
+# Ticket [8011086c85c6c404014c947fcf3eb9f42b184a0d] from 2010-07-08
+# Make sure automatic indices are not created for the RHS of an IN expression
+# that is not a correlated subquery.
+#
+do_execsql_test autoindex1-500 {
+  CREATE TABLE t501(a INTEGER PRIMARY KEY, b);
+  CREATE TABLE t502(x INTEGER PRIMARY KEY, y);
+  INSERT INTO sqlite_stat1(tbl,idx,stat) VALUES('t501',null,'1000000');
+  INSERT INTO sqlite_stat1(tbl,idx,stat) VALUES('t502',null,'1000');
+  ANALYZE sqlite_master;
+}
+do_eqp_test autoindex1-500.1 {
+  SELECT b FROM t501
+   WHERE t501.a IN (SELECT x FROM t502 WHERE y=?);
+} {
+  QUERY PLAN
+  |--SEARCH t501 USING INTEGER PRIMARY KEY (rowid=?)
+  `--LIST SUBQUERY xxxxxx
+     |--SCAN t502
+     `--CREATE BLOOM FILTER
+}
+do_eqp_test autoindex1-501 {
+  SELECT b FROM t501
+   WHERE t501.a IN (SELECT x FROM t502 WHERE y=t501.b);
+} {
+  QUERY PLAN
+  |--SCAN t501
+  `--CORRELATED LIST SUBQUERY xxxxxx
+     |--BLOOM FILTER ON t502 (y=?)
+     `--SEARCH t502 USING AUTOMATIC COVERING INDEX (y=?)
+}
+do_eqp_test autoindex1-502 {
+  SELECT b FROM t501
+   WHERE t501.a=123
+     AND t501.a IN (SELECT x FROM t502 WHERE y=t501.b);
+} {
+  QUERY PLAN
+  |--SEARCH t501 USING INTEGER PRIMARY KEY (rowid=?)
+  `--CORRELATED LIST SUBQUERY xxxxxx
+     `--SCAN t502
+}
+
+# The following code checks a performance regression reported on the
+# mailing list on 2010-10-19.  The problem is that the nRowEst field
+# of ephermeral tables was not being initialized correctly and so no
+# automatic index was being created for the emphemeral table when it was
+# used as part of a join.
+#
+do_execsql_test autoindex1-600 {
+  CREATE TABLE flock_owner(
+    owner_rec_id INTEGER CONSTRAINT flock_owner_key PRIMARY KEY,
+    flock_no VARCHAR(6) NOT NULL REFERENCES flock (flock_no),
+    owner_person_id INTEGER NOT NULL REFERENCES person (person_id),
+    owner_change_date TEXT, last_changed TEXT NOT NULL,
+    CONSTRAINT fo_owner_date UNIQUE (flock_no, owner_change_date)
+  );
+  CREATE TABLE sheep (
+    Sheep_No char(7) NOT NULL,
+    Date_of_Birth char(8),
+    Sort_DoB text,
+    Flock_Book_Vol char(2),
+    Breeder_No char(6),
+    Breeder_Person integer,
+    Originating_Flock char(6),
+    Registering_Flock char(6),
+    Tag_Prefix char(9),
+    Tag_No char(15),
+    Sort_Tag_No integer,
+    Breeders_Temp_Tag char(15),
+    Sex char(1),
+    Sheep_Name char(32),
+    Sire_No char(7),
+    Dam_No char(7),
+    Register_Code char(1),
+    Colour char(48),
+    Colour_Code char(2),
+    Pattern_Code char(8),
+    Horns char(1),
+    Litter_Size char(1),
+    Coeff_of_Inbreeding real,
+    Date_of_Registration text,
+    Date_Last_Changed text,
+    UNIQUE(Sheep_No));
+  CREATE INDEX fo_flock_no_index  
+              ON flock_owner (flock_no);
+  CREATE INDEX fo_owner_change_date_index  
+              ON flock_owner (owner_change_date);
+  CREATE INDEX fo_owner_person_id_index  
+              ON flock_owner (owner_person_id);
+  CREATE INDEX sheep_org_flock_index  
+           ON sheep (originating_flock);
+  CREATE INDEX sheep_reg_flock_index  
+           ON sheep (registering_flock);
+}
+do_eqp_test autoindex1-600a {
+  SELECT x.sheep_no, x.registering_flock, x.date_of_registration
+   FROM sheep x LEFT JOIN
+       (SELECT s.sheep_no, prev.flock_no, prev.owner_person_id,
+       s.date_of_registration, prev.owner_change_date
+       FROM sheep s JOIN flock_owner prev ON s.registering_flock =
+   prev.flock_no
+       AND (prev.owner_change_date <= s.date_of_registration || ' 00:00:00')
+       WHERE NOT EXISTS
+           (SELECT 'x' FROM flock_owner later
+           WHERE prev.flock_no = later.flock_no
+           AND later.owner_change_date > prev.owner_change_date
+           AND later.owner_change_date <= s.date_of_registration||' 00:00:00')
+       ) y ON x.sheep_no = y.sheep_no
+   WHERE y.sheep_no IS NULL
+   ORDER BY x.registering_flock;
+} {
+  QUERY PLAN
+  |--MATERIALIZE y
+  |  |--SCAN s
+  |  |--SEARCH prev USING INDEX sqlite_autoindex_flock_owner_1 (flock_no=? AND owner_change_date<?)
+  |  `--CORRELATED SCALAR SUBQUERY xxxxxx
+  |     `--SEARCH later USING COVERING INDEX sqlite_autoindex_flock_owner_1 (flock_no=? AND owner_change_date>? AND owner_change_date<?)
+  |--SCAN x USING INDEX sheep_reg_flock_index
+  `--SEARCH y USING AUTOMATIC COVERING INDEX (sheep_no=?) LEFT-JOIN
+}
+
+
+do_execsql_test autoindex1-700 {
+  CREATE TABLE t5(a, b, c);
+}
+do_eqp_test autoindex1-700a {
+  SELECT a FROM t5 WHERE b=10 ORDER BY c;
+} {
+  QUERY PLAN
+  |--SCAN t5
+  `--USE TEMP B-TREE FOR ORDER BY
+}
+
+# The following checks a performance issue reported on the sqlite-dev
+# mailing list on 2013-01-10
+#
+do_execsql_test autoindex1-800 {
+  CREATE TABLE accounts(
+    _id INTEGER PRIMARY KEY AUTOINCREMENT,
+    account_name TEXT,
+    account_type TEXT,
+    data_set TEXT
+  );
+  CREATE TABLE data(
+    _id INTEGER PRIMARY KEY AUTOINCREMENT,
+    package_id INTEGER REFERENCES package(_id),
+    mimetype_id INTEGER REFERENCES mimetype(_id) NOT NULL,
+    raw_contact_id INTEGER REFERENCES raw_contacts(_id) NOT NULL,
+    is_read_only INTEGER NOT NULL DEFAULT 0,
+    is_primary INTEGER NOT NULL DEFAULT 0,
+    is_super_primary INTEGER NOT NULL DEFAULT 0,
+    data_version INTEGER NOT NULL DEFAULT 0,
+    data1 TEXT,
+    data2 TEXT,
+    data3 TEXT,
+    data4 TEXT,
+    data5 TEXT,
+    data6 TEXT,
+    data7 TEXT,
+    data8 TEXT,
+    data9 TEXT,
+    data10 TEXT,
+    data11 TEXT,
+    data12 TEXT,
+    data13 TEXT,
+    data14 TEXT,
+    data15 TEXT,
+    data_sync1 TEXT,
+    data_sync2 TEXT,
+    data_sync3 TEXT,
+    data_sync4 TEXT 
+  );
+  CREATE TABLE mimetypes(
+    _id INTEGER PRIMARY KEY AUTOINCREMENT,
+    mimetype TEXT NOT NULL
+  );
+  CREATE TABLE raw_contacts(
+    _id INTEGER PRIMARY KEY AUTOINCREMENT,
+    account_id INTEGER REFERENCES accounts(_id),
+    sourceid TEXT,
+    raw_contact_is_read_only INTEGER NOT NULL DEFAULT 0,
+    version INTEGER NOT NULL DEFAULT 1,
+    dirty INTEGER NOT NULL DEFAULT 0,
+    deleted INTEGER NOT NULL DEFAULT 0,
+    contact_id INTEGER REFERENCES contacts(_id),
+    aggregation_mode INTEGER NOT NULL DEFAULT 0,
+    aggregation_needed INTEGER NOT NULL DEFAULT 1,
+    custom_ringtone TEXT,
+    send_to_voicemail INTEGER NOT NULL DEFAULT 0,
+    times_contacted INTEGER NOT NULL DEFAULT 0,
+    last_time_contacted INTEGER,
+    starred INTEGER NOT NULL DEFAULT 0,
+    display_name TEXT,
+    display_name_alt TEXT,
+    display_name_source INTEGER NOT NULL DEFAULT 0,
+    phonetic_name TEXT,
+    phonetic_name_style TEXT,
+    sort_key TEXT,
+    sort_key_alt TEXT,
+    name_verified INTEGER NOT NULL DEFAULT 0,
+    sync1 TEXT,
+    sync2 TEXT,
+    sync3 TEXT,
+    sync4 TEXT,
+    sync_uid TEXT,
+    sync_version INTEGER NOT NULL DEFAULT 1,
+    has_calendar_event INTEGER NOT NULL DEFAULT 0,
+    modified_time INTEGER,
+    is_restricted INTEGER DEFAULT 0,
+    yp_source TEXT,
+    method_selected INTEGER DEFAULT 0,
+    custom_vibration_type INTEGER DEFAULT 0,
+    custom_ringtone_path TEXT,
+    message_notification TEXT,
+    message_notification_path TEXT
+  );
+  CREATE INDEX data_mimetype_data1_index ON data (mimetype_id,data1);
+  CREATE INDEX data_raw_contact_id ON data (raw_contact_id);
+  CREATE UNIQUE INDEX mime_type ON mimetypes (mimetype);
+  CREATE INDEX raw_contact_sort_key1_index ON raw_contacts (sort_key);
+  CREATE INDEX raw_contact_sort_key2_index ON raw_contacts (sort_key_alt);
+  CREATE INDEX raw_contacts_contact_id_index ON raw_contacts (contact_id);
+  CREATE INDEX raw_contacts_source_id_account_id_index
+      ON raw_contacts (sourceid, account_id);
+  ANALYZE sqlite_master;
+  INSERT INTO sqlite_stat1
+     VALUES('raw_contacts','raw_contact_sort_key2_index','1600 4');
+  INSERT INTO sqlite_stat1
+     VALUES('raw_contacts','raw_contact_sort_key1_index','1600 4');
+  INSERT INTO sqlite_stat1
+     VALUES('raw_contacts','raw_contacts_source_id_account_id_index',
+            '1600 1600 1600');
+  INSERT INTO sqlite_stat1
+     VALUES('raw_contacts','raw_contacts_contact_id_index','1600 1');
+  INSERT INTO sqlite_stat1 VALUES('mimetypes','mime_type','12 1');
+  INSERT INTO sqlite_stat1
+     VALUES('data','data_mimetype_data1_index','9819 2455 3');
+  INSERT INTO sqlite_stat1 VALUES('data','data_raw_contact_id','9819 7');
+  INSERT INTO sqlite_stat1 VALUES('accounts',NULL,'1');
+  DROP TABLE IF EXISTS sqlite_stat3;
+  ANALYZE sqlite_master;
+  
+  EXPLAIN QUERY PLAN
+  SELECT * FROM 
+        data JOIN mimetypes ON (data.mimetype_id=mimetypes._id) 
+             JOIN raw_contacts ON (data.raw_contact_id=raw_contacts._id) 
+             JOIN accounts ON (raw_contacts.account_id=accounts._id)
+   WHERE mimetype_id=10 AND data14 IS NOT NULL;
+} {/SEARCH data .*SEARCH raw_contacts/}
+do_execsql_test autoindex1-801 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM 
+        data JOIN mimetypes ON (data.mimetype_id=mimetypes._id) 
+             JOIN raw_contacts ON (data.raw_contact_id=raw_contacts._id) 
+             JOIN accounts ON (raw_contacts.account_id=accounts._id)
+   WHERE mimetypes._id=10 AND data14 IS NOT NULL;
+} {/SEARCH data .*SEARCH raw_contacts/}
+
+# Another test case from an important user of SQLite.  The key feature of
+# this test is that the "aggindex" subquery should make use of an
+# automatic index.  If it does, the query is fast.  If it does not, the
+# query is deathly slow.  It worked OK in 3.7.17 but started going slow
+# with version 3.8.0.  The problem was fixed for 3.8.7 by reducing the
+# cost estimate for automatic indexes on views and subqueries.
+#
+db close
+forcedelete test.db
+sqlite3 db test.db
+do_execsql_test autoindex1-900 {
+  CREATE TABLE messages (ROWID INTEGER PRIMARY KEY AUTOINCREMENT, message_id, document_id BLOB, in_reply_to, remote_id INTEGER, sender INTEGER, subject_prefix, subject INTEGER, date_sent INTEGER, date_received INTEGER, date_created INTEGER, date_last_viewed INTEGER, mailbox INTEGER, remote_mailbox INTEGER, original_mailbox INTEGER, flags INTEGER, read, flagged, size INTEGER, color, encoding, type INTEGER, pad, conversation_id INTEGER DEFAULT -1, snippet TEXT DEFAULT NULL, fuzzy_ancestor INTEGER DEFAULT NULL, automated_conversation INTEGER DEFAULT 0, root_status INTEGER DEFAULT -1, conversation_position INTEGER DEFAULT -1);
+  CREATE INDEX date_index ON messages(date_received);
+  CREATE INDEX date_last_viewed_index ON messages(date_last_viewed);
+  CREATE INDEX date_created_index ON messages(date_created);
+  CREATE INDEX message_message_id_mailbox_index ON messages(message_id, mailbox);
+  CREATE INDEX message_document_id_index ON messages(document_id);
+  CREATE INDEX message_read_index ON messages(read);
+  CREATE INDEX message_flagged_index ON messages(flagged);
+  CREATE INDEX message_mailbox_index ON messages(mailbox, date_received);
+  CREATE INDEX message_remote_mailbox_index ON messages(remote_mailbox, remote_id);
+  CREATE INDEX message_type_index ON messages(type);
+  CREATE INDEX message_conversation_id_conversation_position_index ON messages(conversation_id, conversation_position);
+  CREATE INDEX message_fuzzy_ancestor_index ON messages(fuzzy_ancestor);
+  CREATE INDEX message_subject_fuzzy_ancestor_index ON messages(subject, fuzzy_ancestor);
+  CREATE INDEX message_sender_subject_automated_conversation_index ON messages(sender, subject, automated_conversation);
+  CREATE INDEX message_sender_index ON messages(sender);
+  CREATE INDEX message_root_status ON messages(root_status);
+  CREATE TABLE subjects (ROWID INTEGER PRIMARY KEY, subject COLLATE RTRIM, normalized_subject COLLATE RTRIM);
+  CREATE INDEX subject_subject_index ON subjects(subject);
+  CREATE INDEX subject_normalized_subject_index ON subjects(normalized_subject);
+  CREATE TABLE addresses (ROWID INTEGER PRIMARY KEY, address COLLATE NOCASE, comment, UNIQUE(address, comment));
+  CREATE INDEX addresses_address_index ON addresses(address);
+  CREATE TABLE mailboxes (ROWID INTEGER PRIMARY KEY, url UNIQUE, total_count INTEGER DEFAULT 0, unread_count INTEGER DEFAULT 0, unseen_count INTEGER DEFAULT 0, deleted_count INTEGER DEFAULT 0, unread_count_adjusted_for_duplicates INTEGER DEFAULT 0, change_identifier, source INTEGER, alleged_change_identifier);
+  CREATE INDEX mailboxes_source_index ON mailboxes(source);
+  CREATE TABLE labels (ROWID INTEGER PRIMARY KEY, message_id INTEGER NOT NULL, mailbox_id INTEGER NOT NULL, UNIQUE(message_id, mailbox_id));
+  CREATE INDEX labels_message_id_mailbox_id_index ON labels(message_id, mailbox_id);
+  CREATE INDEX labels_mailbox_id_index ON labels(mailbox_id);
+  
+  explain query plan
+  SELECT messages.ROWID,
+         messages.message_id,
+         messages.remote_id,
+         messages.date_received,
+         messages.date_sent,
+         messages.flags,
+         messages.size,
+         messages.color,
+         messages.date_last_viewed,
+         messages.subject_prefix,
+         subjects.subject,
+         sender.comment,
+         sender.address,
+         NULL,
+         messages.mailbox,
+         messages.original_mailbox,
+         NULL,
+         NULL,
+         messages.type,
+         messages.document_id,
+         sender,
+         NULL,
+         messages.conversation_id,
+         messages.conversation_position,
+         agglabels.labels
+   FROM mailboxes AS mailbox
+        JOIN messages ON mailbox.ROWID = messages.mailbox
+        LEFT OUTER JOIN subjects ON messages.subject = subjects.ROWID
+        LEFT OUTER JOIN addresses AS sender ON messages.sender = sender.ROWID
+        LEFT OUTER JOIN (
+               SELECT message_id, group_concat(mailbox_id) as labels
+               FROM labels GROUP BY message_id
+             ) AS agglabels ON messages.ROWID = agglabels.message_id
+  WHERE (mailbox.url = 'imap://email.app@imap.gmail.com/%5BGmail%5D/All%20Mail')
+    AND (messages.ROWID IN (
+            SELECT labels.message_id
+              FROM labels JOIN mailboxes ON labels.mailbox_id = mailboxes.ROWID
+             WHERE mailboxes.url = 'imap://email.app@imap.gmail.com/INBOX'))
+    AND messages.mailbox in (6,12,18,24,30,36,42,1,7,13,19,25,31,37,43,2,8,
+                             14,20,26,32,38,3,9,15,21,27,33,39,4,10,16,22,28,
+                             34,40,5,11,17,23,35,41)
+   ORDER BY date_received DESC;
+} {/agglabels USING AUTOMATIC COVERING INDEX/}
+
+# A test case for VIEWs
+#
+do_execsql_test autoindex1-901 {
+  CREATE TABLE t1(x INTEGER PRIMARY KEY, y, z);
+  CREATE TABLE t2(a, b);
+  CREATE VIEW agg2 AS SELECT a, sum(b) AS m FROM t2 GROUP BY a;
+  EXPLAIN QUERY PLAN
+  SELECT t1.z, agg2.m
+    FROM t1 JOIN agg2 ON t1.y=agg2.m
+   WHERE t1.x IN (1,2,3);
+} {/USING AUTOMATIC COVERING INDEX/}
+
+# 2015-04-15:  A NULL CollSeq pointer in automatic index creation.
+#
+do_execsql_test autoindex1-920 {
+  CREATE TABLE t920(x);
+  INSERT INTO t920 VALUES(3),(4),(5);
+  SELECT * FROM t920,(SELECT 0 FROM t920),(VALUES(9)) WHERE 5 IN (x);
+} {5 0 9 5 0 9 5 0 9}
+
+#-------------------------------------------------------------------------
+# An IS term from the WHERE clause of a LEFT JOIN cannot be used as an
+# index driver for the RHS of a LEFT JOIN. Prior to this being fixed,
+# the following SELECT count(*) would incorrectly return 1.
+#
+do_execsql_test autoindex1-1010 {
+  CREATE TABLE t11(w);
+  CREATE TABLE t12(y);
+  INSERT INTO t11 VALUES(NULL);
+  INSERT INTO t12 VALUES('notnull');
+}
+do_execsql_test autoindex1-1020 {
+  SELECT count(*) FROM t11 LEFT JOIN t12 WHERE t12.y IS t11.w;
+} 0
+
+# 2022-04-25
+# https://sqlite.org/forum/forumpost/0d3200f4f3bcd3a3
+#
+reset_db
+do_execsql_test autoindex-1100 {
+  CREATE TABLE t1(a INT, b INT);
+  CREATE TABLE t2(c INT, d INT);
+  CREATE TABLE t3(e TEXT, f TEXT);
+  INSERT INTO t1 VALUES(1, 1);
+  INSERT INTO t2 VALUES(1, 2);
+  INSERT INTO t3 VALUES('abc', 'def');
+} {}
+do_execsql_test autoindex-1110 {
+  SELECT * FROM t1, t2 LEFT JOIN t3 ON (t2.d=1) WHERE t2.c = +t1.a;
+} {1 1 1 2 {} {}}
+do_execsql_test autoindex-1120 {
+  SELECT * FROM t1 LEFT JOIN t2 ON (t2.c=+t1.a) LEFT JOIN t3 ON (t2.d IS NULL);
+} {1 1 1 2 {} {}}
+
+finish_test
diff --git a/test/autoindex2.test b/test/autoindex2.test
new file mode 100644
index 0000000000000000000000000000000000000000..afd4a666b75463ca102a3e5a90a6b2e18c11f6e9
--- /dev/null
+++ b/test/autoindex2.test
@@ -0,0 +1,232 @@
+# 2014-06-17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing automatic index creation logic.
+#
+# This file contains a single real-world test case that was giving
+# suboptimal performance because of over-use of automatic indexes.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+
+do_execsql_test autoindex2-100 {
+  CREATE TABLE t1(
+    t1_id largeint,
+    did char(9),
+    ptime largeint,
+    exbyte char(4),
+    pe_id int,
+    field_id int,
+    mass float,
+    param10 float,
+    param11 float,
+    exmass float,
+    deviation float,
+    trange float,
+    vstatus int,
+    commit_status int,
+    formula char(329),
+    tier int DEFAULT 2,
+    ssid int DEFAULT 0,
+    last_operation largeint DEFAULT 0,
+    admin_uuid int DEFAULT 0,
+    previous_value float,
+    job_id largeint,
+    last_t1 largeint DEFAULT 0,
+    data_t1 int,
+    previous_date largeint DEFAULT 0,
+    flg8 int DEFAULT 1,
+    failed_fields char(100)
+  );
+  CREATE INDEX t1x0 on t1 (t1_id);
+  CREATE INDEX t1x1 on t1 (ptime, vstatus);
+  CREATE INDEX t1x2 on t1 (did, ssid, ptime, vstatus, exbyte, t1_id);
+  CREATE INDEX t1x3 on t1 (job_id);
+  
+  CREATE TABLE t2(
+    did char(9),
+    client_did char(30),
+    description char(49),
+    uid int,
+    tzid int,
+    privilege int,
+    param2 int,
+    type char(30),
+    subtype char(32),
+    dparam1 char(7) DEFAULT '',
+    param5 char(3) DEFAULT '',
+    notional float DEFAULT 0.000000,
+    create_time largeint,
+    sample_time largeint DEFAULT 0,
+    param6 largeint,
+    frequency int,
+    expiration largeint,
+    uw_status int,
+    next_sample largeint,
+    last_sample largeint,
+    reserve1 char(29) DEFAULT '',
+    reserve2 char(29) DEFAULT '',
+    reserve3 char(29) DEFAULT '',
+    bxcdr char(19) DEFAULT 'XY',
+    ssid int DEFAULT 1,
+    last_t1_id largeint,
+    reserve4 char(29) DEFAULT '',
+    reserve5 char(29) DEFAULT '',
+    param12 int DEFAULT 0,
+    long_did char(100) DEFAULT '',
+    gr_code int DEFAULT 0,
+    drx char(100) DEFAULT '',
+    parent_id char(9) DEFAULT '',
+    param13 int DEFAULT 0,
+    position float DEFAULT 1.000000,
+    client_did3 char(100) DEFAULT '',
+    client_did4 char(100) DEFAULT '',
+    dlib_id char(9) DEFAULT ''
+  );
+  CREATE INDEX t2x0 on t2 (did);
+  CREATE INDEX t2x1 on t2 (client_did);
+  CREATE INDEX t2x2 on t2 (long_did);
+  CREATE INDEX t2x3 on t2 (uid);
+  CREATE INDEX t2x4 on t2 (param2);
+  CREATE INDEX t2x5 on t2 (type);
+  CREATE INDEX t2x6 on t2 (subtype);
+  CREATE INDEX t2x7 on t2 (last_sample);
+  CREATE INDEX t2x8 on t2 (param6);
+  CREATE INDEX t2x9 on t2 (frequency);
+  CREATE INDEX t2x10 on t2 (privilege);
+  CREATE INDEX t2x11 on t2 (sample_time);
+  CREATE INDEX t2x12 on t2 (notional);
+  CREATE INDEX t2x13 on t2 (tzid);
+  CREATE INDEX t2x14 on t2 (gr_code);
+  CREATE INDEX t2x15 on t2 (parent_id);
+  
+  CREATE TABLE t3(
+    uid int,
+    param3 int,
+    uuid int,
+    acc_id int,
+    cust_num int,
+    numerix_id int,
+    pfy char(29),
+    param4 char(29),
+    param15 int DEFAULT 0,
+    flg7 int DEFAULT 0,
+    param21 int DEFAULT 0,
+    bxcdr char(2) DEFAULT 'PC',
+    c31 int DEFAULT 0,
+    c33 int DEFAULT 0,
+    c35 int DEFAULT 0,
+    c37 int,
+    mgr_uuid int,
+    back_up_uuid int,
+    priv_mars int DEFAULT 0,
+    is_qc int DEFAULT 0,
+    c41 int DEFAULT 0,
+    deleted int DEFAULT 0,
+    c47 int DEFAULT 1
+  );
+  CREATE INDEX t3x0 on t3 (uid);
+  CREATE INDEX t3x1 on t3 (param3);
+  CREATE INDEX t3x2 on t3 (uuid);
+  CREATE INDEX t3x3 on t3 (acc_id);
+  CREATE INDEX t3x4 on t3 (param4);
+  CREATE INDEX t3x5 on t3 (pfy);
+  CREATE INDEX t3x6 on t3 (is_qc);
+  SELECT count(*) FROM sqlite_master;
+} {30}
+do_execsql_test autoindex2-110 {
+  ANALYZE sqlite_master;
+  INSERT INTO sqlite_stat1 VALUES('t1','t1x3','10747267 260');
+  INSERT INTO sqlite_stat1 VALUES('t1','t1x2','10747267 121 113 2 2 2 1');
+  INSERT INTO sqlite_stat1 VALUES('t1','t1x1','10747267 50 40');
+  INSERT INTO sqlite_stat1 VALUES('t1','t1x0','10747267 1');
+  INSERT INTO sqlite_stat1 VALUES('t2','t2x15','39667 253');
+  INSERT INTO sqlite_stat1 VALUES('t2','t2x14','39667 19834');
+  INSERT INTO sqlite_stat1 VALUES('t2','t2x13','39667 13223');
+  INSERT INTO sqlite_stat1 VALUES('t2','t2x12','39667 7');
+  INSERT INTO sqlite_stat1 VALUES('t2','t2x11','39667 17');
+  INSERT INTO sqlite_stat1 VALUES('t2','t2x10','39667 19834');
+  INSERT INTO sqlite_stat1 VALUES('t2','t2x9','39667 7934');
+  INSERT INTO sqlite_stat1 VALUES('t2','t2x8','39667 11');
+  INSERT INTO sqlite_stat1 VALUES('t2','t2x7','39667 5');
+  INSERT INTO sqlite_stat1 VALUES('t2','t2x6','39667 242');
+  INSERT INTO sqlite_stat1 VALUES('t2','t2x5','39667 1984');
+  INSERT INTO sqlite_stat1 VALUES('t2','t2x4','39667 4408');
+  INSERT INTO sqlite_stat1 VALUES('t2','t2x3','39667 81');
+  INSERT INTO sqlite_stat1 VALUES('t2','t2x2','39667 551');
+  INSERT INTO sqlite_stat1 VALUES('t2','t2x1','39667 2');
+  INSERT INTO sqlite_stat1 VALUES('t2','t2x0','39667 1');
+  INSERT INTO sqlite_stat1 VALUES('t3','t3x6','569 285');
+  INSERT INTO sqlite_stat1 VALUES('t3','t3x5','569 2');
+  INSERT INTO sqlite_stat1 VALUES('t3','t3x4','569 2');
+  INSERT INTO sqlite_stat1 VALUES('t3','t3x3','569 5');
+  INSERT INTO sqlite_stat1 VALUES('t3','t3x2','569 3');
+  INSERT INTO sqlite_stat1 VALUES('t3','t3x1','569 6');
+  INSERT INTO sqlite_stat1 VALUES('t3','t3x0','569 1');
+  ANALYZE sqlite_master;
+} {}
+do_execsql_test autoindex2-120 {
+  EXPLAIN QUERY PLAN
+  SELECT
+     t1_id,
+     t1.did,
+     param2,
+     param3,
+     t1.ptime,
+     t1.trange,
+     t1.exmass,
+     t1.mass,
+     t1.vstatus,
+     type,
+     subtype,
+     t1.deviation,
+     t1.formula,
+     dparam1,
+     reserve1,
+     reserve2,
+     param4,
+     t1.last_operation,
+     t1.admin_uuid,
+     t1.previous_value,
+     t1.job_id,
+     client_did, 
+     t1.last_t1,
+     t1.data_t1,
+     t1.previous_date,
+     param5,
+     param6,
+     mgr_uuid
+  FROM
+     t1,
+     t2,
+     t3
+  WHERE
+     t1.ptime > 1393520400
+     AND param3<>9001
+     AND t3.flg7 = 1
+     AND t1.did = t2.did
+     AND t2.uid = t3.uid
+  ORDER BY t1.ptime desc LIMIT 500;
+} {~/AUTO/}
+#
+# ^^^--- Before being fixed, the above was using an automatic covering
+# on t3 and reordering the tables so that t3 was in the outer loop and
+# implementing the ORDER BY clause using a B-Tree.
+#
+# This test is sanitized data received from a user.  The original unsanitized
+# data and STAT4 data is found in the th3private test repository.  See one of
+# the th3private check-ins on 2016-02-25.  The test is much more accurate when
+# STAT4 data is used.
+
+finish_test
diff --git a/test/autoindex3.test b/test/autoindex3.test
new file mode 100644
index 0000000000000000000000000000000000000000..aa6aa00128f1d315009897fc0ca8bd5281d7e37d
--- /dev/null
+++ b/test/autoindex3.test
@@ -0,0 +1,129 @@
+# 2014-06-17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing automatic index creation logic,
+# and specifically that an automatic index will not be created that
+# shadows a declared index.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix autoindex3
+
+# The t1b and t2d indexes are not very selective.  It used to be that
+# the autoindex mechanism would create automatic indexes on t1(b) or
+# t2(d), make assumptions that they were reasonably selective, and use
+# them instead of t1b or t2d.  But that would be cheating, because the
+# automatic index cannot be any more selective than the real index.
+#
+# This test verifies that the cheat is no longer allowed.
+#
+do_execsql_test autoindex3-100 {
+  CREATE TABLE t1(a,b,x);
+  CREATE TABLE t2(c,d,y);
+  CREATE INDEX t1b ON t1(b);
+  CREATE INDEX t2d ON t2(d);
+  ANALYZE sqlite_master;
+  INSERT INTO sqlite_stat1 VALUES('t1','t1b','10000 500');
+  INSERT INTO sqlite_stat1 VALUES('t2','t2d','10000 500');
+  ANALYZE sqlite_master;
+  EXPLAIN QUERY PLAN SELECT * FROM t1, t2 WHERE d=b;
+} {~/AUTO/}
+
+# Automatic indexes can still be used if existing indexes do not
+# participate in == constraints.
+#
+do_execsql_test autoindex3-110 {
+  EXPLAIN QUERY PLAN SELECT * FROM t1, t2 WHERE d>b AND x=y;
+} {/AUTO/}
+do_execsql_test autoindex3-120 {
+  EXPLAIN QUERY PLAN SELECT * FROM t1, t2 WHERE d<b AND x=y;
+} {/AUTO/}
+do_execsql_test autoindex3-130 {
+  EXPLAIN QUERY PLAN SELECT * FROM t1, t2 WHERE d IS NULL AND x=y;
+} {/AUTO/}
+do_execsql_test autoindex3-140 {
+  EXPLAIN QUERY PLAN SELECT * FROM t1, t2 WHERE d IN (5,b) AND x=y;
+} {/AUTO/}
+
+reset_db
+do_execsql_test 210 {
+  CREATE TABLE v(b, d, e);
+  CREATE TABLE u(a, b, c);
+  ANALYZE sqlite_master;
+  INSERT INTO "sqlite_stat1" VALUES('u','uab','40000 400 1');
+  INSERT INTO "sqlite_stat1" VALUES('v','vbde','40000 400 1 1');
+  INSERT INTO "sqlite_stat1" VALUES('v','ve','40000 21');
+
+  CREATE INDEX uab on u(a, b);
+  CREATE INDEX ve on v(e);
+  CREATE INDEX vbde on v(b,d,e);
+
+  DROP TABLE IF EXISTS sqlite_stat4;
+  ANALYZE sqlite_master;
+}
+
+# At one point, SQLite was using the inferior plan:
+#
+#   0|0|1|SEARCH v USING INDEX ve (e>?)
+#   0|1|0|SEARCH u USING COVERING INDEX uab (ANY(a) AND b=?)
+#
+# on the basis that the real index "uab" must be better than the automatic
+# index. This is not right - a skip-scan is not necessarily better than an
+# automatic index scan.
+#
+do_eqp_test 220 {
+  select count(*) from u, v where u.b = v.b and v.e > 34;
+} {
+  QUERY PLAN
+  |--SEARCH v USING INDEX ve (e>?)
+  |--BLOOM FILTER ON u (b=?)
+  `--SEARCH u USING AUTOMATIC COVERING INDEX (b=?)
+}
+
+# 2024-05-27
+# ticket https://sqlite.org/src/tktview/8ff324e120
+# forum post https://sqlite.org/forum/forumpost/b21c2101a559be0a
+#
+# If an index with STAT1 data indicates that a column is not very
+# selective, then do not attempt to create an automatic index on
+# that column.
+#
+reset_db
+do_execsql_test 300 {
+  CREATE TABLE t1(id INTEGER PRIMARY KEY);
+  CREATE TABLE t2(cid INT, pid INT, rx INT, PRIMARY KEY(cid, pid, rx));
+  CREATE INDEX x1 ON t2(pid, rx);
+  ANALYZE sqlite_schema;
+  REPLACE INTO sqlite_stat1(tbl, idx, stat) VALUES
+    ('t2', 'x1', '500000 250 250'),
+    ('t2','sqlite_autoindex_t2_1','500000 1 1 1');
+  ANALYZE sqlite_schema;
+}
+do_eqp_test 310 {
+  WITH RECURSIVE children(id) AS (
+    SELECT cid FROM t2 WHERE pid = ?1 AND rx = ?2
+    UNION 
+    SELECT cid FROM t2 JOIN children ON t2.pid = children.id AND rx = ?2
+  ) SELECT count(id) FROM children;
+} {
+  QUERY PLAN
+  |--CO-ROUTINE children
+  |  |--SETUP
+  |  |  `--SEARCH t2 USING INDEX x1 (pid=? AND rx=?)
+  |  `--RECURSIVE STEP
+  |     |--SCAN children
+  |     `--SEARCH t2 USING INDEX x1 (pid=? AND rx=?)
+  `--SCAN children
+}  
+
+finish_test
diff --git a/test/autoindex4.test b/test/autoindex4.test
new file mode 100644
index 0000000000000000000000000000000000000000..6af99f5e15622ce63b9da7d1bbb996ed85d1733f
--- /dev/null
+++ b/test/autoindex4.test
@@ -0,0 +1,223 @@
+# 2014-10-24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing automatic index creation logic,
+# and specifically creation of automatic partial indexes.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_execsql_test autoindex4-1.0 {
+  CREATE TABLE t1(a,b);
+  INSERT INTO t1 VALUES(123,'abc'),(234,'def'),(234,'ghi'),(345,'jkl');
+  CREATE TABLE t2(x,y);
+  INSERT INTO t2 VALUES(987,'zyx'),(654,'wvu'),(987,'rqp');
+
+  SELECT *, '|' FROM t1, t2 WHERE a=234 AND x=987 ORDER BY +b;
+} {234 def 987 rqp | 234 def 987 zyx | 234 ghi 987 rqp | 234 ghi 987 zyx |}
+do_execsql_test autoindex4-1.1 {
+  SELECT *, '|' FROM t1, t2 WHERE a=234 AND x=555;
+} {}
+
+do_execsql_test autoindex4-1.2 {
+  SELECT *, '|' FROM t1 LEFT JOIN t2 ON a=234 AND x=555;
+} {123 abc {} {} | 234 def {} {} | 234 ghi {} {} | 345 jkl {} {} |}
+do_execsql_test autoindex4-1.2-rj {
+  SELECT t1.*, t2.*, '|' FROM t2 RIGHT JOIN t1 ON a=234 AND x=555;
+} {123 abc {} {} | 234 def {} {} | 234 ghi {} {} | 345 jkl {} {} |}
+do_execsql_test autoindex4-1.3 {
+  SELECT *, '|' FROM t1 LEFT JOIN t2 ON x=555 WHERE a=234;
+} {234 def {} {} | 234 ghi {} {} |}
+do_execsql_test autoindex4-1.3-rj {
+  SELECT t1.*, t2.*, '|' FROM t2 RIGHT JOIN t1 ON x=555 WHERE a=234;
+} {234 def {} {} | 234 ghi {} {} |}
+do_execsql_test autoindex4-1.4 {
+  SELECT *, '|' FROM t1 LEFT JOIN t2 WHERE a=234 AND x=555;
+} {}
+do_execsql_test autoindex4-1.4-rj {
+  SELECT t1.*, t2.*, '|' FROM t2 RIGHT JOIN t1 WHERE a=234 AND x=555;
+} {}
+
+
+do_execsql_test autoindex4-2.0 {
+  CREATE TABLE t3(e,f);
+  INSERT INTO t3 VALUES(123,654),(555,444),(234,987);
+
+  SELECT (SELECT count(*) FROM t1, t2 WHERE a=e AND x=f), e, f, '|'
+    FROM t3
+   ORDER BY rowid;
+} {1 123 654 | 0 555 444 | 4 234 987 |}
+
+# Ticket [2326c258d02ead33d]
+# Two joins, one with and the other without an ORDER BY clause.
+# The one without ORDER BY correctly returns two rows of result.
+# The one with ORDER BY returns no rows. 
+#
+do_execsql_test autoindex4-3.0 {
+  CREATE TABLE A(Name text);
+  CREATE TABLE Items(ItemName text , Name text);
+  INSERT INTO Items VALUES('Item1','Parent');
+  INSERT INTO Items VALUES('Item2','Parent');
+  CREATE TABLE B(Name text);
+  
+  SELECT Items.ItemName
+    FROM Items
+      LEFT JOIN A ON (A.Name = Items.ItemName and Items.ItemName = 'dummy')
+      LEFT JOIN B ON (B.Name = Items.ItemName)
+    WHERE Items.Name = 'Parent'
+    ORDER BY Items.ItemName;
+} {Item1 Item2}
+do_execsql_test autoindex4-3.1 {
+  SELECT Items.ItemName
+    FROM A
+      RIGHT JOIN Items ON (A.Name = Items.ItemName and Items.ItemName = 'dummy')
+      LEFT JOIN B ON (B.Name = Items.ItemName)
+    WHERE Items.Name = 'Parent'
+    ORDER BY Items.ItemName;
+} {Item1 Item2}
+do_execsql_test autoindex4-3.10 {
+  CREATE INDEX Items_x1 ON Items(ItemName,Name) WHERE ItemName = 'dummy';
+  
+  SELECT Items.ItemName
+    FROM Items
+      LEFT JOIN A ON (A.Name = Items.ItemName and Items.ItemName = 'dummy')
+      LEFT JOIN B ON (B.Name = Items.ItemName)
+    WHERE Items.Name = 'Parent'
+    ORDER BY Items.ItemName;
+} {Item1 Item2}
+do_execsql_test autoindex4-3.11 {
+  SELECT Items.ItemName
+    FROM A
+      RIGHT JOIN Items ON (A.Name = Items.ItemName and Items.ItemName = 'dummy')
+      LEFT JOIN B ON (B.Name = Items.ItemName)
+    WHERE Items.Name = 'Parent'
+    ORDER BY Items.ItemName;
+} {Item1 Item2}
+
+# 2021-11-30 - Enhancement to help the automatic index mechanism to
+# create a partial index more often.
+#
+unset -nocomplain id data1 data2 jointype onclause whereclause answer
+foreach {id data1 data2 jointype onclause whereclause answer} {
+  1
+  VALUES(1,2),(3,4)
+  VALUES(1,2),(3,4)
+  {LEFT JOIN}
+  a=x
+  {y=4 OR y IS NULL}
+  {3 4 3 4}
+
+  2
+  VALUES(1,2),(3,4)
+  VALUES(1,2),(3,4)
+  {LEFT JOIN}
+  {a=x AND y=4}
+  {coalesce(y,4)==4}
+  {1 2 {} {} 3 4 3 4}
+
+  3
+  VALUES(1,2),(3,4)
+  VALUES(1,2),(3,4)
+  {JOIN}
+  {a=x}
+  {y=4 OR y IS NULL}
+  {3 4 3 4}
+
+  4
+  VALUES(1,2),(3,4)
+  VALUES(1,2),(3,4)
+  {JOIN}
+  {a=x AND y=4}
+  {coalesce(y,4)==4}
+  {3 4 3 4}
+
+  5.1
+  VALUES(1,2),(3,4),(NULL,4)
+  VALUES(1,2),(3,4)
+  {LEFT JOIN}
+  a=x
+  {y=4 OR y IS NULL}
+  {3 4 3 4 {} 4 {} {}}
+
+  5.2
+  VALUES(1,2),(3,4),(NULL,4)
+  VALUES(1,2),(3,4)
+  {LEFT JOIN}
+  a=x
+  {y NOT IN ()}
+  {1 2 1 2 3 4 3 4 {} 4 {} {}}
+
+  5.3
+  VALUES(1,2),(3,4),(NULL,4)
+  VALUES(1,2),(3,4)
+  {LEFT JOIN}
+  a=x
+  {y NOT IN (SELECT 1 WHERE false)}
+  {1 2 1 2 3 4 3 4 {} 4 {} {}}
+
+  6
+  VALUES(1,2),(3,4)
+  VALUES(1,2),(3,4),(NULL,4)
+  {LEFT JOIN}
+  {a=x AND y=4}
+  {coalesce(y,4)==4}
+  {1 2 {} {} 3 4 3 4}
+
+  7
+  VALUES(1,2),(3,4),(NULL,4)
+  VALUES(1,2),(3,4),(NULL,4)
+  {JOIN}
+  {a=x}
+  {y=4 OR y IS NULL}
+  {3 4 3 4}
+
+  8
+  VALUES(1,2),(3,4)
+  VALUES(1,2),(3,4)
+  {JOIN}
+  {a=x AND y=4}
+  {coalesce(y,4)==4}
+  {3 4 3 4}
+} {
+  do_test autoindex4-4.$id.0 {
+    db eval {
+       DROP TABLE IF EXISTS t1;
+       CREATE TABLE t1(a INT, b INT);
+       DROP TABLE IF EXISTS t2;
+       CREATE TABLE t2(x INT, y INT);
+    }
+    db eval "INSERT INTO t1(a,b) $data1;"
+    db eval "INSERT INTO t2(x,y) $data2;"
+  } {}
+  set sql "SELECT * FROM t1 $jointype t2 ON $onclause WHERE $whereclause"
+  # puts "sql = $sql"
+  do_test autoindex4-4.$id.1 {
+    db eval {PRAGMA automatic_index=ON;}
+    db eval $sql
+  } $answer
+  do_test autoindex4-4.$id.2 {
+    db eval {PRAGMA automatic_index=OFF;}
+    db eval $sql
+  } $answer
+  do_test autoindex4-4.$id.3 {
+    db eval {PRAGMA automatic_index=ON;}
+    optimization_control db all 0
+    db eval $sql
+  } $answer
+  optimization_control db all 1
+}
+
+
+
+
+finish_test
diff --git a/test/autoindex5.test b/test/autoindex5.test
new file mode 100644
index 0000000000000000000000000000000000000000..aa8dec27d94c02aea7f0eb3db17865ab47f03a7f
--- /dev/null
+++ b/test/autoindex5.test
@@ -0,0 +1,234 @@
+# 2014-10-24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing automatic index creation logic,
+# and specifically ensuring that automatic indexes can be used with
+# co-routine subqueries.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix autoindex5
+
+# Schema is from the Debian security database
+#
+do_execsql_test autoindex5-1.0 {
+  CREATE TABLE source_package_status
+          (bug_name TEXT NOT NULL,
+           package INTEGER NOT NULL,
+           vulnerable INTEGER NOT NULL,
+           urgency TEXT NOT NULL,
+           PRIMARY KEY (bug_name, package));
+  CREATE INDEX source_package_status_package
+              ON source_package_status(package);
+  
+  CREATE TABLE source_packages
+              (name TEXT NOT NULL,
+              release TEXT NOT NULL,
+              subrelease TEXT NOT NULL,
+              archive TEXT NOT NULL,
+              version TEXT NOT NULL,
+              version_id INTEGER NOT NULL DEFAULT 0,
+              PRIMARY KEY (name, release, subrelease, archive));
+  
+  CREATE TABLE bugs
+          (name TEXT NOT NULL PRIMARY KEY,
+           cve_status TEXT NOT NULL
+               CHECK (cve_status IN
+                      ('', 'CANDIDATE', 'ASSIGNED', 'RESERVED', 'REJECTED')),
+           not_for_us INTEGER NOT NULL CHECK (not_for_us IN (0, 1)),
+           description TEXT NOT NULL,
+           release_date TEXT NOT NULL,
+           source_file TEXT NOT NULL,
+           source_line INTEGER NOT NULL);
+  
+  CREATE TABLE package_notes
+          (id INTEGER NOT NULL PRIMARY KEY,
+           bug_name TEXT NOT NULL,
+           package TEXT NOT NULL,
+           fixed_version TEXT
+               CHECK (fixed_version IS NULL OR fixed_version <> ''),
+           fixed_version_id INTEGER NOT NULL DEFAULT 0,
+           release TEXT NOT NULL,
+           package_kind TEXT NOT NULL DEFAULT 'unknown',
+           urgency TEXT NOT NULL,
+           bug_origin TEXT NOT NULL DEFAULT '');
+  CREATE INDEX package_notes_package
+              ON package_notes(package);
+  CREATE UNIQUE INDEX package_notes_bug
+              ON package_notes(bug_name, package, release);
+  
+  CREATE TABLE debian_bugs
+          (bug INTEGER NOT NULL,
+           note INTEGER NOT NULL,
+           PRIMARY KEY (bug, note));
+  
+  
+  CREATE VIEW debian_cve AS
+              SELECT DISTINCT debian_bugs.bug, st.bug_name
+              FROM package_notes, debian_bugs, source_package_status AS st
+              WHERE package_notes.bug_name = st.bug_name
+              AND debian_bugs.note = package_notes.id
+              ORDER BY debian_bugs.bug;
+} {}
+
+# The following query should use an automatic index for the view
+# in FROM clause of the subquery of the second result column.
+#
+do_eqp_test autoindex5-1.1 {
+  SELECT
+    st.bug_name,
+    (SELECT ALL debian_cve.bug FROM debian_cve
+      WHERE debian_cve.bug_name = st.bug_name
+      ORDER BY debian_cve.bug),
+    sp.release
+  FROM
+     source_package_status AS st,
+     source_packages AS sp,
+     bugs
+  WHERE
+     sp.rowid = st.package
+     AND st.bug_name = bugs.name
+     AND ( st.bug_name LIKE 'CVE-%' OR st.bug_name LIKE 'TEMP-%' )
+     AND ( sp.release = 'sid' OR sp.release = 'stretch' OR sp.release = 'jessie'
+            OR sp.release = 'wheezy' OR sp.release = 'squeeze' )
+  ORDER BY sp.name, st.bug_name, sp.release, sp.subrelease;
+} {SEARCH debian_cve USING AUTOMATIC COVERING INDEX (bug_name=?)}
+
+#-------------------------------------------------------------------------
+# Test that ticket [8a2adec1] has been fixed.
+#
+do_execsql_test 2.1 {
+  CREATE TABLE one(o);
+  INSERT INTO one DEFAULT VALUES;
+
+  CREATE TABLE t1(x, z);
+  INSERT INTO t1 VALUES('aaa', 4.0);
+  INSERT INTO t1 VALUES('aaa', 4.0);
+  CREATE VIEW vvv AS
+    SELECT * FROM t1
+    UNION ALL
+    SELECT 0, 0 WHERE 0;
+
+  SELECT (
+      SELECT sum(z) FROM vvv WHERE x='aaa'
+  ) FROM one;
+} {8.0}
+
+# At one point the following was returning "no such column: rowid". This
+# was incorrect - "rowid" matches against the rowid of table t1 in this
+# query.
+do_catchsql_test 2.2 {
+  DROP TABLE t1;
+  CREATE TABLE t1(aaa);
+  INSERT INTO t1(aaa) VALUES(9);
+  SELECT (
+    SELECT aaa FROM t1 GROUP BY (
+      SELECT bbb FROM (
+        SELECT ccc AS bbb FROM (
+           SELECT 1 ccc
+        ) WHERE rowid IS NOT 1
+      ) WHERE bbb = 1
+    )
+  );
+} {0 9}
+
+# Ticket https://www.sqlite.org/src/info/787fa716be3a7f65
+# Segfault due to multiple uses of the same subquery where the
+# subquery is implemented via coroutine.
+#
+ifcapable windowfunc {
+sqlite3 db :memory:
+do_execsql_test 3.0 {
+  -- This is the original test case reported on the mailing list
+  CREATE TABLE artists (
+    id integer NOT NULL PRIMARY KEY AUTOINCREMENT,
+    name varchar(255)
+  );
+  CREATE TABLE albums (
+    id integer NOT NULL PRIMARY KEY AUTOINCREMENT,
+    name varchar(255),
+    artist_id integer REFERENCES artists
+  );
+  INSERT INTO artists (name) VALUES ('Ar');
+  INSERT INTO albums (name, artist_id) VALUES ('Al', 1);
+  SELECT artists.*
+  FROM artists
+  INNER JOIN artists AS 'b' ON (b.id = artists.id)
+  WHERE (artists.id IN (
+    SELECT albums.artist_id
+    FROM albums
+    WHERE ((name = 'Al')
+      AND (albums.artist_id IS NOT NULL)
+      AND (albums.id IN (
+        SELECT id
+        FROM (
+          SELECT albums.id,
+                 row_number() OVER (
+                   PARTITION BY albums.artist_id
+                   ORDER BY name
+                 ) AS 'x'
+          FROM albums
+          WHERE (name = 'Al')
+        ) AS 't1'
+        WHERE (x = 1)
+      ))
+      AND (albums.id IN (1, 2)))
+  ));
+} {1 Ar}
+} ;# windowfunc
+
+# The remaining test cases were discovered (by Dan) during trouble-shooting
+sqlite3 db :memory:
+do_execsql_test 3.1 {
+  CREATE TABLE t1 (a); INSERT INTO t1 (a) VALUES (104);
+  CREATE TABLE t2 (b); INSERT INTO t2 (b) VALUES (104);
+  CREATE TABLE t3 (c); INSERT INTO t3 (c) VALUES (104);
+  CREATE TABLE t4 (d); INSERT INTO t4 (d) VALUES (104);
+  SELECT *
+  FROM t1 CROSS JOIN t2 ON (t1.a = t2.b) WHERE t2.b IN (
+    SELECT t3.c
+    FROM t3
+    WHERE t3.c IN (
+      SELECT d FROM (SELECT DISTINCT d FROM t4) AS x WHERE x.d=104
+    )
+  );
+} {104 104}
+sqlite3 db :memory:
+do_execsql_test 3.2 {
+  CREATE TABLE t5(a, b, c, d);
+  CREATE INDEX t5a ON t5(a);
+  CREATE INDEX t5b ON t5(b);
+  CREATE TABLE t6(e);
+  INSERT INTO t6 VALUES(1);
+  INSERT INTO t5 VALUES(1,1,1,1), (2,2,2,2);
+  SELECT * FROM t5 WHERE (a=1 OR b=2) AND c IN (
+    SELECT e FROM (SELECT DISTINCT e FROM t6) WHERE e=1
+  );
+} {1 1 1 1}
+sqlite3 db :memory:
+do_execsql_test 3.3 {
+  CREATE TABLE t1(a1, a2, a3);
+  CREATE INDEX t1a2 ON t1(a2, a1);
+  CREATE INDEX t1a3 ON t1(a3, a1);
+  CREATE TABLE t2(d);
+  INSERT INTO t1 VALUES(3, 1, 1), (3, 2, 2);
+  INSERT INTO t2 VALUES(3);
+  SELECT *, 'x' FROM t1 WHERE (a2=1 OR a3=2) AND a1 = (
+    SELECT d FROM (SELECT DISTINCT d FROM t2) WHERE d=3
+  );
+} {3 1 1 x 3 2 2 x}
+
+
+    
+
+finish_test
diff --git a/test/autovacuum.test b/test/autovacuum.test
new file mode 100644
index 0000000000000000000000000000000000000000..245ea8b51d4b3b257d1de89eb8f5af55333c94d7
--- /dev/null
+++ b/test/autovacuum.test
@@ -0,0 +1,715 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the autovacuum feature.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If this build of the library does not support auto-vacuum, omit this
+# whole file.
+ifcapable {!autovacuum || !pragma} {
+  finish_test
+  return
+}
+
+# Return a string $len characters long. The returned string is $char repeated
+# over and over. For example, [make_str abc 8] returns "abcabcab".
+proc make_str {char len} {
+  set str [string repeat $char. $len]
+  return [string range $str 0 [expr $len-1]]
+}
+
+# Return the number of pages in the file test.db by looking at the file system.
+proc file_pages {} {
+  return [expr [file size test.db] / 1024]
+}
+
+#-------------------------------------------------------------------------
+# Test cases autovacuum-1.* work as follows:
+#
+# 1. A table with a single indexed field is created.
+# 2. Approximately 20 rows are inserted into the table. Each row is long 
+#    enough such that it uses at least 2 overflow pages for both the table 
+#    and index entry.
+# 3. The rows are deleted in a psuedo-random order. Sometimes only one row
+#    is deleted per transaction, sometimes more than one.
+# 4. After each transaction the table data is checked to ensure it is correct
+#    and a "PRAGMA integrity_check" is executed.
+# 5. Once all the rows are deleted the file is checked to make sure it 
+#    consists of exactly 4 pages.
+#
+# Steps 2-5 are repeated for a few different psuedo-random delete patterns 
+# (defined by the $delete_orders list).
+set delete_orders [list]
+lappend delete_orders {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20}
+lappend delete_orders {20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1} 
+lappend delete_orders {8 18 2 4 14 11 13 3 10 7 9 5 12 17 19 15 20 6 16 1}
+lappend delete_orders {10 3 11 17 19 20 7 4 13 6 1 14 16 12 9 18 8 15 5 2}
+lappend delete_orders {{1 2 3 4 5 6 7 8 9 10} {11 12 13 14 15 16 17 18 19 20}}
+lappend delete_orders {{19 8 17 15} {16 11 9 14} {18 5 3 1} {13 20 7 2} {6 12}}
+
+# The length of each table entry. 
+# set ENTRY_LEN 3500
+set ENTRY_LEN 3500
+
+do_test autovacuum-1.1 {
+  execsql {
+    PRAGMA auto_vacuum = 1;
+    CREATE TABLE av1(a);
+    CREATE INDEX av1_idx ON av1(a);
+  }
+} {}
+
+set tn 0
+foreach delete_order $delete_orders {
+  incr tn
+
+  # Set up the table.
+  set ::tbl_data [list]
+  foreach i [lsort -integer [eval concat $delete_order]] {
+    execsql "INSERT INTO av1 (oid, a) VALUES($i, '[make_str $i $ENTRY_LEN]')"
+    lappend ::tbl_data [make_str $i $ENTRY_LEN]
+  }
+
+  # Make sure the integrity check passes with the initial data.
+  ifcapable {integrityck} {
+    do_test autovacuum-1.$tn.1 {
+      execsql {
+        pragma integrity_check
+      }
+    } {ok}
+  }
+
+  foreach delete $delete_order {
+    # Delete one set of rows from the table.
+    do_test autovacuum-1.$tn.($delete).1 {
+      execsql "
+        DELETE FROM av1 WHERE oid = [join $delete " OR oid = "]
+      "
+    } {}
+
+    # Do the integrity check.
+    ifcapable {integrityck} {
+      do_test autovacuum-1.$tn.($delete).2 {
+        execsql {
+          pragma integrity_check
+        }
+      } {ok}
+    }
+    # Ensure the data remaining in the table is what was expected.
+    foreach d $delete {
+      set idx [lsearch $::tbl_data [make_str $d $ENTRY_LEN]]
+      set ::tbl_data [lreplace $::tbl_data $idx $idx]
+    }
+    do_test autovacuum-1.$tn.($delete).3 {
+      execsql {
+        select a from av1 order by rowid
+      }
+    } $::tbl_data
+  }
+
+  # All rows have been deleted. Ensure the file has shrunk to 4 pages.
+  do_test autovacuum-1.$tn.3 {
+    file_pages
+  } {4}
+}
+
+#---------------------------------------------------------------------------
+# Tests cases autovacuum-2.* test that root pages are allocated 
+# and deallocated correctly at the start of the file. Operation is roughly as
+# follows:
+#
+# autovacuum-2.1.*: Drop the tables that currently exist in the database.
+# autovacuum-2.2.*: Create some tables. Ensure that data pages can be
+#                   moved correctly to make space for new root-pages.
+# autovacuum-2.3.*: Drop one of the tables just created (not the last one),
+#                   and check that one of the other tables is moved to
+#                   the free root-page location.
+# autovacuum-2.4.*: Check that a table can be created correctly when the
+#                   root-page it requires is on the free-list.
+# autovacuum-2.5.*: Check that a table with indices can be dropped. This
+#                   is slightly tricky because dropping one of the
+#                   indices/table btrees could move the root-page of another.
+#                   The code-generation layer of SQLite overcomes this problem
+#                   by dropping the btrees in descending order of root-pages.
+#                   This test ensures that this actually happens.
+#
+do_test autovacuum-2.1.1 {
+  execsql {
+    DROP TABLE av1;
+  }
+} {}
+do_test autovacuum-2.1.2 {
+  file_pages
+} {1}
+
+# Create a table and put some data in it.
+do_test autovacuum-2.2.1 {
+  execsql {
+    CREATE TABLE av1(x);
+    SELECT rootpage FROM sqlite_master ORDER BY rootpage;
+  }
+} {3}
+do_test autovacuum-2.2.2 {
+  execsql "
+    INSERT INTO av1 VALUES('[make_str abc 3000]');
+    INSERT INTO av1 VALUES('[make_str def 3000]');
+    INSERT INTO av1 VALUES('[make_str ghi 3000]');
+    INSERT INTO av1 VALUES('[make_str jkl 3000]');
+  "
+  set ::av1_data [db eval {select * from av1}]
+  file_pages
+} {15}
+
+# Create another table. Check it is located immediately after the first.
+# This test case moves the second page in an over-flow chain.
+do_test autovacuum-2.2.3 {
+  execsql {
+    CREATE TABLE av2(x);
+    SELECT rootpage FROM sqlite_master ORDER BY rootpage;
+  }
+} {3 4}
+do_test autovacuum-2.2.4 {
+  file_pages
+} {16}
+
+# Create another table. Check it is located immediately after the second.
+# This test case moves the first page in an over-flow chain.
+do_test autovacuum-2.2.5 {
+  execsql {
+    CREATE TABLE av3(x);
+    SELECT rootpage FROM sqlite_master ORDER BY rootpage;
+  }
+} {3 4 5}
+do_test autovacuum-2.2.6 {
+  file_pages
+} {17}
+
+# Create another table. Check it is located immediately after the second.
+# This test case moves a btree leaf page.
+do_test autovacuum-2.2.7 {
+  execsql {
+    CREATE TABLE av4(x);
+    SELECT rootpage FROM sqlite_master ORDER BY rootpage;
+  }
+} {3 4 5 6}
+do_test autovacuum-2.2.8 {
+  file_pages
+} {18}
+do_test autovacuum-2.2.9 {
+  execsql {
+    select * from av1
+  }
+} $av1_data
+
+do_test autovacuum-2.3.1 {
+  execsql {
+    INSERT INTO av2 SELECT 'av1' || x FROM av1;
+    INSERT INTO av3 SELECT 'av2' || x FROM av1;
+    INSERT INTO av4 SELECT 'av3' || x FROM av1;
+  }
+  set ::av2_data [execsql {select x from av2}]
+  set ::av3_data [execsql {select x from av3}]
+  set ::av4_data [execsql {select x from av4}]
+  file_pages
+} {54}
+do_test autovacuum-2.3.2 {
+  execsql {
+    DROP TABLE av2;
+    SELECT rootpage FROM sqlite_master ORDER BY rootpage;
+  }
+} {3 4 5}
+do_test autovacuum-2.3.3 {
+  file_pages
+} {41}
+do_test autovacuum-2.3.4 {
+  execsql {
+    SELECT x FROM av3;
+  }
+} $::av3_data
+do_test autovacuum-2.3.5 {
+  execsql {
+    SELECT x FROM av4;
+  }
+} $::av4_data
+
+# Drop all the tables in the file. This puts all pages except the first 2
+# (the sqlite_master root-page and the first pointer map page) on the 
+# free-list.
+do_test autovacuum-2.4.1 {
+  execsql {
+    DROP TABLE av1;
+    DROP TABLE av3;
+    BEGIN;
+    DROP TABLE av4;
+  }
+  file_pages
+} {15}
+do_test autovacuum-2.4.2 {
+  for {set i 3} {$i<=10} {incr i} {
+    execsql "CREATE TABLE av$i (x)"
+  }
+  file_pages
+} {15}
+do_test autovacuum-2.4.3 {
+  execsql {
+    SELECT rootpage FROM sqlite_master ORDER by rootpage
+  }
+} {3 4 5 6 7 8 9 10}
+
+# Right now there are 5 free pages in the database. Consume and then free
+# all 520 pages. Then create 520 tables. This ensures that at least some of the
+# desired root-pages reside on the second free-list trunk page, and that the
+# trunk itself is required at some point.
+do_test autovacuum-2.4.4 {
+  execsql "
+    INSERT INTO av3 VALUES ('[make_str abcde [expr 1020*520 + 500]]');
+    DELETE FROM av3;
+  "
+} {}
+set root_page_list [list]
+set pending_byte_page [expr ($::sqlite_pending_byte / 1024) + 1]
+
+# unusable_pages
+# These are either the pending_byte page or the pointer map pages
+#
+unset -nocomplain unusable_page
+if {[sqlite3 -has-codec]} {
+  array set unusable_page {205 1 408 1}
+} else {
+  array set unusable_page {207 1 412 1}
+}
+set unusable_page($pending_byte_page) 1
+
+for {set i 3} {$i<=532} {incr i} {
+  if {![info exists unusable_page($i)]} {
+    lappend root_page_list $i
+  }
+}
+if {$i >= $pending_byte_page} {
+  lappend root_page_list $i
+}
+do_test autovacuum-2.4.5 {
+  for {set i 11} {$i<=530} {incr i} {
+    execsql "CREATE TABLE av$i (x)"
+  }
+  execsql {
+    SELECT rootpage FROM sqlite_master ORDER by rootpage
+  }
+} $root_page_list
+
+# Just for fun, delete all those tables and see if the database is 1 page.
+do_test autovacuum-2.4.6 {
+  execsql COMMIT;
+  file_pages
+} [expr 561 + (($i >= $pending_byte_page)?1:0)]
+integrity_check autovacuum-2.4.6
+do_test autovacuum-2.4.7 {
+  execsql BEGIN
+  for {set i 3} {$i<=530} {incr i} {
+    execsql "DROP TABLE av$i"
+  }
+  execsql COMMIT
+  file_pages
+} 1
+
+# Create some tables with indices to drop.
+do_test autovacuum-2.5.1 {
+  execsql {
+    CREATE TABLE av1(a PRIMARY KEY, b, c);
+    INSERT INTO av1 VALUES('av1 a', 'av1 b', 'av1 c');
+
+    CREATE TABLE av2(a PRIMARY KEY, b, c);
+    CREATE INDEX av2_i1 ON av2(b);
+    CREATE INDEX av2_i2 ON av2(c);
+    INSERT INTO av2 VALUES('av2 a', 'av2 b', 'av2 c');
+
+    CREATE TABLE av3(a PRIMARY KEY, b, c);
+    CREATE INDEX av3_i1 ON av3(b);
+    INSERT INTO av3 VALUES('av3 a', 'av3 b', 'av3 c');
+
+    CREATE TABLE av4(a, b, c);
+    CREATE INDEX av4_i1 ON av4(a);
+    CREATE INDEX av4_i2 ON av4(b);
+    CREATE INDEX av4_i3 ON av4(c);
+    CREATE INDEX av4_i4 ON av4(a, b, c);
+    INSERT INTO av4 VALUES('av4 a', 'av4 b', 'av4 c');
+  }
+} {}
+
+do_test autovacuum-2.5.2 {
+  execsql {
+    SELECT name, rootpage FROM sqlite_master;
+  }
+} [list av1 3  sqlite_autoindex_av1_1 4 \
+        av2 5  sqlite_autoindex_av2_1 6 av2_i1 7 av2_i2 8 \
+        av3 9 sqlite_autoindex_av3_1 10 av3_i1 11 \
+        av4 12 av4_i1 13 av4_i2 14 av4_i3 15 av4_i4 16 \
+]
+
+# The following 4 tests are SELECT queries that use the indices created.
+# If the root-pages in the internal schema are not updated correctly when
+# a table or indice is moved, these queries will fail. They are repeated
+# after each table is dropped (i.e. as test cases 2.5.*.[1..4]).
+do_test autovacuum-2.5.2.1 {
+  execsql {
+    SELECT * FROM av1 WHERE a = 'av1 a';
+  }
+} {{av1 a} {av1 b} {av1 c}}
+do_test autovacuum-2.5.2.2 {
+  execsql {
+    SELECT * FROM av2 WHERE a = 'av2 a' AND b = 'av2 b' AND c = 'av2 c'
+  }
+} {{av2 a} {av2 b} {av2 c}}
+do_test autovacuum-2.5.2.3 {
+  execsql {
+    SELECT * FROM av3 WHERE a = 'av3 a' AND b = 'av3 b';
+  }
+} {{av3 a} {av3 b} {av3 c}}
+do_test autovacuum-2.5.2.4 {
+  execsql {
+    SELECT * FROM av4 WHERE a = 'av4 a' AND b = 'av4 b' AND c = 'av4 c';
+  }
+} {{av4 a} {av4 b} {av4 c}}
+
+# Drop table av3. Indices av4_i2, av4_i3 and av4_i4 are moved to fill the two
+# root pages vacated. The operation proceeds as:
+# Step 1: Delete av3_i1 (root-page 11). Move root-page of av4_i4 to page 11.
+# Step 2: Delete av3 (root-page 10). Move root-page of av4_i3 to page 10.
+# Step 3: Delete sqlite_autoindex_av1_3 (root-page 9). Move av4_i2 to page 9.
+do_test autovacuum-2.5.3 {
+  execsql {
+    DROP TABLE av3;
+    SELECT name, rootpage FROM sqlite_master;
+  }
+} [list av1 3  sqlite_autoindex_av1_1 4 \
+        av2 5  sqlite_autoindex_av2_1 6 av2_i1 7 av2_i2 8 \
+        av4 12 av4_i1 13 av4_i2 9 av4_i3 10 av4_i4 11 \
+]
+do_test autovacuum-2.5.3.1 {
+  execsql {
+    SELECT * FROM av1 WHERE a = 'av1 a';
+  }
+} {{av1 a} {av1 b} {av1 c}}
+do_test autovacuum-2.5.3.2 {
+  execsql {
+    SELECT * FROM av2 WHERE a = 'av2 a' AND b = 'av2 b' AND c = 'av2 c'
+  }
+} {{av2 a} {av2 b} {av2 c}}
+do_test autovacuum-2.5.3.3 {
+  execsql {
+    SELECT * FROM av4 WHERE a = 'av4 a' AND b = 'av4 b' AND c = 'av4 c';
+  }
+} {{av4 a} {av4 b} {av4 c}}
+
+# Drop table av1:
+# Step 1: Delete av1 (root page 4). Root-page of av4_i1 fills the gap.
+# Step 2: Delete sqlite_autoindex_av1_1 (root page 3). Move av4 to the gap.
+do_test autovacuum-2.5.4 {
+  execsql {
+    DROP TABLE av1;
+    SELECT name, rootpage FROM sqlite_master;
+  }
+} [list av2 5  sqlite_autoindex_av2_1 6 av2_i1 7 av2_i2 8 \
+        av4 3 av4_i1 4 av4_i2 9 av4_i3 10 av4_i4 11 \
+]
+do_test autovacuum-2.5.4.2 {
+  execsql {
+    SELECT * FROM av2 WHERE a = 'av2 a' AND b = 'av2 b' AND c = 'av2 c'
+  }
+} {{av2 a} {av2 b} {av2 c}}
+do_test autovacuum-2.5.4.4 {
+  execsql {
+    SELECT * FROM av4 WHERE a = 'av4 a' AND b = 'av4 b' AND c = 'av4 c';
+  }
+} {{av4 a} {av4 b} {av4 c}}
+
+# Drop table av4:
+# Step 1: Delete av4_i4.
+# Step 2: Delete av4_i3.
+# Step 3: Delete av4_i2.
+# Step 4: Delete av4_i1. av2_i2 replaces it.
+# Step 5: Delete av4. av2_i1 replaces it.
+do_test autovacuum-2.5.5 {
+  execsql {
+    DROP TABLE av4;
+    SELECT name, rootpage FROM sqlite_master;
+  }
+} [list av2 5 sqlite_autoindex_av2_1 6 av2_i1 3 av2_i2 4]
+do_test autovacuum-2.5.5.2 {
+  execsql {
+    SELECT * FROM av2 WHERE a = 'av2 a' AND b = 'av2 b' AND c = 'av2 c'
+  }
+} {{av2 a} {av2 b} {av2 c}}
+
+#--------------------------------------------------------------------------
+# Test cases autovacuum-3.* test the operation of the "PRAGMA auto_vacuum"
+# command.
+#
+do_test autovacuum-3.1 {
+  execsql {
+    PRAGMA auto_vacuum;
+  }
+} {1}
+do_test autovacuum-3.2 {
+  db close
+  sqlite3 db test.db
+  execsql {
+    PRAGMA auto_vacuum;
+  }
+} {1}
+do_test autovacuum-3.3 {
+  execsql {
+    PRAGMA auto_vacuum = 0;
+    PRAGMA auto_vacuum;
+  }
+} {1}
+
+do_test autovacuum-3.4 {
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+  execsql {
+    PRAGMA auto_vacuum;
+  }
+} $AUTOVACUUM
+do_test autovacuum-3.5 {
+  execsql {
+    CREATE TABLE av1(x);
+    PRAGMA auto_vacuum;
+  }
+} $AUTOVACUUM
+do_test autovacuum-3.6 {
+  execsql {
+    PRAGMA auto_vacuum = 1;
+    PRAGMA auto_vacuum;
+  }
+} [expr $AUTOVACUUM ? 1 : 0]
+do_test autovacuum-3.7 {
+  execsql {
+    DROP TABLE av1;
+  }
+  file_pages
+} [expr $AUTOVACUUM?1:2]
+
+
+#-----------------------------------------------------------------------
+# Test that if a statement transaction around a CREATE INDEX statement is
+# rolled back no corruption occurs.
+#
+do_test autovacuum-4.0 {
+  # The last round of tests may have left the db in non-autovacuum mode.
+  # Reset everything just in case.
+  #
+  db close
+  forcedelete test.db test.db-journal
+  sqlite3 db test.db
+  execsql {
+    PRAGMA auto_vacuum = 1;
+    PRAGMA auto_vacuum;
+  }
+} {1}
+do_test autovacuum-4.1 {
+  execsql {
+    CREATE TABLE av1(a, b);
+    BEGIN;
+  }
+  for {set i 0} {$i<100} {incr i} {
+    execsql "INSERT INTO av1 VALUES($i, '[string repeat X 200]');"
+  }
+  execsql "INSERT INTO av1 VALUES(99, '[string repeat X 200]');"
+  execsql {
+    SELECT sum(a) FROM av1;
+  }
+} {5049}
+do_test autovacuum-4.2 {
+  catchsql {
+    CREATE UNIQUE INDEX av1_i ON av1(a);
+  }
+} {1 {UNIQUE constraint failed: av1.a}}
+do_test autovacuum-4.3 {
+  execsql {
+    SELECT sum(a) FROM av1;
+  }
+} {5049}
+do_test autovacuum-4.4 {
+  execsql {
+    COMMIT;
+  }
+} {}
+
+ifcapable integrityck {
+
+# Ticket #1727
+do_test autovacuum-5.1 {
+  db close
+  sqlite3 db :memory:
+  db eval {
+    PRAGMA auto_vacuum=1;
+    CREATE TABLE t1(a);
+    CREATE TABLE t2(a);
+    DROP TABLE t1;
+    PRAGMA integrity_check;
+  }
+} ok
+
+}
+
+# Ticket #1728.
+#
+# In autovacuum mode, when tables or indices are deleted, the rootpage
+# values in the symbol table have to be updated.  There was a bug in this
+# logic so that if an index/table was moved twice, the second move might
+# not occur.  This would leave the internal symbol table in an inconsistent
+# state causing subsequent statements to fail.
+#
+# The problem is difficult to reproduce.  The sequence of statements in
+# the following test are carefully designed make it occur and thus to
+# verify that this very obscure bug has been resolved.
+# 
+ifcapable integrityck&&memorydb {
+
+do_test autovacuum-6.1 {
+  db close
+  sqlite3 db :memory:
+  db eval {
+    PRAGMA auto_vacuum=1;
+    CREATE TABLE t1(a, b);
+    CREATE INDEX i1 ON t1(a);
+    CREATE TABLE t2(a);
+    CREATE INDEX i2 ON t2(a);
+    CREATE TABLE t3(a);
+    CREATE INDEX i3 ON t2(a);
+    CREATE INDEX x ON t1(b);
+    DROP TABLE t3;
+    PRAGMA integrity_check;
+    DROP TABLE t2;
+    PRAGMA integrity_check;
+    DROP TABLE t1;
+    PRAGMA integrity_check;
+  }
+} {ok ok ok}
+
+}
+
+#---------------------------------------------------------------------
+# Test cases autovacuum-7.X test the case where a page must be moved
+# and the destination location collides with at least one other
+# entry in the page hash-table (internal to the pager.c module. 
+#
+do_test autovacuum-7.1 {
+  db close
+  forcedelete test.db
+  forcedelete test.db-journal
+  sqlite3 db test.db
+
+  execsql {
+    PRAGMA auto_vacuum=1;
+    CREATE TABLE t1(a, b, PRIMARY KEY(a, b));
+    INSERT INTO t1 VALUES(randstr(400,400),randstr(400,400));
+    INSERT INTO t1 SELECT randstr(400,400), randstr(400,400) FROM t1; -- 2
+    INSERT INTO t1 SELECT randstr(400,400), randstr(400,400) FROM t1; -- 4
+    INSERT INTO t1 SELECT randstr(400,400), randstr(400,400) FROM t1; -- 8
+    INSERT INTO t1 SELECT randstr(400,400), randstr(400,400) FROM t1; -- 16
+    INSERT INTO t1 SELECT randstr(400,400), randstr(400,400) FROM t1; -- 32
+  }
+
+  expr {[file size test.db] / 1024}
+} {73}
+
+do_test autovacuum-7.2 {
+  execsql {
+    CREATE TABLE t2(a, b, PRIMARY KEY(a, b));
+    INSERT INTO t2 SELECT randstr(400,400), randstr(400,400) FROM t1; -- 2
+    CREATE TABLE t3(a, b, PRIMARY KEY(a, b));
+    INSERT INTO t3 SELECT randstr(400,400), randstr(400,400) FROM t1; -- 2
+    CREATE TABLE t4(a, b, PRIMARY KEY(a, b));
+    INSERT INTO t4 SELECT randstr(400,400), randstr(400,400) FROM t1; -- 2
+    CREATE TABLE t5(a, b, PRIMARY KEY(a, b));
+    INSERT INTO t5 SELECT randstr(400,400), randstr(400,400) FROM t1; -- 2
+  }
+  expr {[file size test.db] / 1024}
+} {354}
+
+do_test autovacuum-7.3 {
+  db close
+  sqlite3 db test.db
+  execsql {
+    BEGIN;
+    DELETE FROM t4;
+    COMMIT;
+    SELECT count(*) FROM t1;
+  }
+  expr {[file size test.db] / 1024}
+} {286}
+
+#------------------------------------------------------------------------
+# Additional tests.
+#
+# Try to determine the autovacuum setting for a database that is locked.
+#
+do_test autovacuum-8.1 {
+  db close
+  sqlite3 db test.db
+  sqlite3 db2 test.db
+  db eval {PRAGMA auto_vacuum}
+} {1}
+if {[permutation] == ""} {
+  do_test autovacuum-8.2 {
+    db eval {BEGIN EXCLUSIVE}
+    catchsql {PRAGMA auto_vacuum} db2
+  } {1 {database is locked}}
+  catch {db2 close}
+  catch {db eval {COMMIT}}
+}
+
+do_test autovacuum-9.1 {
+  execsql {
+    DROP TABLE t1;
+    DROP TABLE t2;
+    DROP TABLE t3;
+    DROP TABLE t4;
+    DROP TABLE t5;
+    PRAGMA page_count;
+  }
+} {1}
+do_test autovacuum-9.2 {
+  file size test.db
+} 1024
+do_test autovacuum-9.3 {
+  execsql {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+    INSERT INTO t1 VALUES(NULL, randstr(50,50));
+  }
+  for {set ii 0} {$ii < 10} {incr ii} {
+    db eval { INSERT INTO t1 SELECT NULL, randstr(50,50) FROM t1 }
+  }
+  file size test.db
+} $::sqlite_pending_byte
+do_test autovacuum-9.4 {
+  execsql { INSERT INTO t1 SELECT NULL, randstr(50,50) FROM t1 }
+} {}
+do_test autovacuum-9.5 {
+  execsql { DELETE FROM t1 WHERE rowid > (SELECT max(a)/2 FROM t1) }
+  file size test.db
+} $::sqlite_pending_byte
+ 
+do_execsql_test autovacuum-10.1 {
+  DROP TABLE t1;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+  INSERT INTO t1 VALUES(25, randomblob(104));
+  REPLACE INTO t1 VALUES(25, randomblob(1117));
+  PRAGMA integrity_check;
+} {ok}
+
+finish_test
diff --git a/test/autovacuum2.test b/test/autovacuum2.test
new file mode 100644
index 0000000000000000000000000000000000000000..a3c409839e3bb3f76800dd37bf0f187bea1acf36
--- /dev/null
+++ b/test/autovacuum2.test
@@ -0,0 +1,87 @@
+# 2021-10-15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the sqlite3_autovacuum_pages() interface
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If this build of the library does not support auto-vacuum, omit this
+# whole file.
+ifcapable {!autovacuum || !pragma} {
+  finish_test
+  return
+}
+
+# Demonstrate basic sqlite3_autovacuum_pages functionality
+#
+do_execsql_test autovacuum2-1.0 {
+  PRAGMA page_size=1024;
+  PRAGMA auto_vacuum=FULL;
+  CREATE TABLE t1(x);
+  VACUUM;
+  INSERT INTO t1(x) VALUES(zeroblob(10000));
+  PRAGMA page_count;
+} {12}
+proc autovac_page_callback {schema filesize freesize pagesize} {
+  global autovac_callback_data
+  lappend autovac_callback_data $schema $filesize $freesize $pagesize
+  return [expr {$freesize/2}]
+}
+sqlite3_autovacuum_pages db autovac_page_callback
+set autovac_callback_data {}
+do_execsql_test autovacuum2-1.1 {
+  BEGIN;
+  DELETE FROM t1;
+  PRAGMA freelist_count;
+  PRAGMA page_count;
+} {9 12}
+do_execsql_test autovacuum2-1.2 {
+  COMMIT;
+} {}
+do_test autovacuum2-1.3 {
+  set autovac_callback_data
+} {main 12 9 1024}
+do_execsql_test autovacuum2-1.4 {
+  PRAGMA freelist_count;
+  PRAGMA page_count;
+} {5 8}
+do_execsql_test autovacuum2-1.5 {
+  PRAGMA integrity_check;
+} {ok}
+
+# Disable the autovacuum-pages callback.  Then do any transaction.
+# The database should shrink to minimal size
+#
+sqlite3_autovacuum_pages db
+do_execsql_test autovacuum2-1.10 {
+  CREATE TABLE t2(x);
+  PRAGMA freelist_count;
+} {0}
+
+# Rig the autovacuum-pages callback to always return zero.  No
+# autovacuum will happen.
+#
+proc autovac_page_callback_off {schema filesize freesize pagesize} {
+  return 0
+}
+sqlite3_autovacuum_pages db autovac_page_callback_off
+do_execsql_test autovacuum2-1.20 {
+  BEGIN;
+  INSERT INTO t1(x) VALUES(zeroblob(10000));
+  DELETE FROM t1;
+  PRAGMA freelist_count;
+  COMMIT;
+  PRAGMA freelist_count;
+} {9 9}
+
+finish_test
diff --git a/test/autovacuum_ioerr2.test b/test/autovacuum_ioerr2.test
new file mode 100644
index 0000000000000000000000000000000000000000..891d00eb06bce225482c4f49a8d573edffa27bcf
--- /dev/null
+++ b/test/autovacuum_ioerr2.test
@@ -0,0 +1,132 @@
+# 2001 October 12
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing for correct handling of I/O errors
+# such as writes failing because the disk is full.
+# 
+# The tests in this file use special facilities that are only
+# available in the SQLite test fixture.
+#
+# $Id: autovacuum_ioerr2.test,v 1.7 2008/07/12 14:52:20 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If this build of the library does not support auto-vacuum, omit this
+# whole file.
+ifcapable {!autovacuum} {
+  finish_test
+  return
+}
+
+do_ioerr_test autovacuum-ioerr2-1 -sqlprep {
+  PRAGMA auto_vacuum = 1;
+  CREATE TABLE abc(a);
+  INSERT INTO abc VALUES(randstr(1500,1500));
+} -sqlbody {
+  CREATE TABLE abc2(a);
+  BEGIN;
+  DELETE FROM abc;
+  INSERT INTO abc VALUES(randstr(1500,1500));
+  CREATE TABLE abc3(a);
+  COMMIT;
+}
+
+do_ioerr_test autovacuum-ioerr2-2 -tclprep {
+  execsql {
+    PRAGMA auto_vacuum = 1;
+    PRAGMA cache_size = 10;
+    BEGIN;
+    CREATE TABLE abc(a);
+    INSERT INTO abc VALUES(randstr(1100,1100)); -- Page 4 is overflow
+    INSERT INTO abc VALUES(randstr(1100,1100)); -- Page 5 is overflow
+  }
+  for {set i 0} {$i<150} {incr i} {
+    execsql {
+      INSERT INTO abc VALUES(randstr(100,100)); 
+    }
+  }
+  execsql COMMIT
+} -sqlbody {
+  BEGIN;
+  DELETE FROM abc WHERE length(a)>100;
+  UPDATE abc SET a = randstr(90,90);
+  CREATE TABLE abc3(a);
+  COMMIT;
+}
+
+do_ioerr_test autovacuum-ioerr2-3 -sqlprep {
+  PRAGMA auto_vacuum = 1;
+  CREATE TABLE abc(a);
+  CREATE TABLE abc2(b);
+} -sqlbody {
+  BEGIN;
+  INSERT INTO abc2 VALUES(10);
+  DROP TABLE abc;
+  COMMIT;
+  DROP TABLE abc2;
+}
+
+forcedelete backup.db
+ifcapable subquery {
+  do_ioerr_test autovacuum-ioerr2-4 -tclprep {
+    if {![file exists backup.db]} {
+      sqlite3 dbb backup.db 
+      execsql {
+        PRAGMA auto_vacuum = 1;
+        BEGIN;
+        CREATE TABLE abc(a);
+        INSERT INTO abc VALUES(randstr(1100,1100)); -- Page 4 is overflow
+        INSERT INTO abc VALUES(randstr(1100,1100)); -- Page 5 is overflow
+      } dbb
+      for {set i 0} {$i<2500} {incr i} {
+        execsql {
+          INSERT INTO abc VALUES(randstr(100,100)); 
+        } dbb
+      }
+      execsql {
+        COMMIT;
+        PRAGMA cache_size = 10;
+      } dbb
+      dbb close
+    }
+    db close
+    forcedelete test.db
+    forcedelete test.db-journal
+    forcecopy backup.db test.db
+    set ::DB [sqlite3 db test.db]
+    execsql {
+      PRAGMA cache_size = 10;
+    }
+  } -sqlbody {
+    BEGIN;
+    DELETE FROM abc WHERE oid < 3;
+    UPDATE abc SET a = randstr(100,100) WHERE oid > 2300;
+    UPDATE abc SET a = randstr(1100,1100) WHERE oid = 
+        (select max(oid) from abc);
+    COMMIT;
+  }
+}
+
+do_ioerr_test autovacuum-ioerr2-1 -sqlprep {
+  PRAGMA auto_vacuum = 1;
+  CREATE TABLE abc(a);
+  INSERT INTO abc VALUES(randstr(1500,1500));
+} -sqlbody {
+  CREATE TABLE abc2(a);
+  BEGIN;
+  DELETE FROM abc;
+  INSERT INTO abc VALUES(randstr(1500,1500));
+  CREATE TABLE abc3(a);
+  COMMIT;
+}
+
+finish_test
diff --git a/test/avfs.test b/test/avfs.test
new file mode 100644
index 0000000000000000000000000000000000000000..ffd6b309fc80254ef7bcbb57e76e016e17fc757c
--- /dev/null
+++ b/test/avfs.test
@@ -0,0 +1,396 @@
+# 2021-03-06
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# TESTRUNNER: shell
+# 
+# This file implements tests for the appendvfs extension.
+#
+# Tests performed:
+# avfs-1.0. Test that an appendvfs DB can be added to an empty (ZLF) file.
+# avfs-1.1. Test that the DB can be read with correct content upon reopen.
+# avfs-1.2. Test that an appendvfs DB can be added to a simple text file.
+# avfs-1.3. Test that the DB can be read with correct content upon reopen.
+# avfs-1.4. Test that appended DB is aligned to default page boundary.
+# avfs-2.1. Test that the simple text file retains its initial text.
+# avfs-3.1. Test that the appendvfs can grow and shrink, remaining intact.
+# avfs-3.2. Test that appendvfs is intact after grow/shrink/close/reopen.
+# avfs-3.3. Test that appendvfs can grow by many pages and be written.
+# avfs-3.4. Test that grown appendvfs can be reopened and appear intact.
+# avfs-3.5. Test that much grown appendvfs can shrink and reopen intact.
+# avfs-4.1. Test shell's ability to append to a non-appendvfs file.
+# avfs-4.2. Test shell's ability to append to empty or nonexistent file.
+# avfs-4.3. Test shell's ability to reopen and alter an appendvfs file.
+# avfs-5.1. Test appendvfs refusal to open too-tiny DB appended onto ZLF.
+# avfs-5.2. Test appendvfs refusal to open too-tiny DB appended on other.
+# ...
+# (more to come)
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix avfs
+
+# Do not attempt this test if SQLITE_OMIT_VIRTUALTABLE is defined. 
+#
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+set CLI [test_find_cli]
+db close
+# forcedelete test.db
+
+load_static_extension db appendvfs
+
+set ::fa avfs.adb
+set ::fza avfs.sdb
+forcedelete $::fa $::fza
+set ::result {}
+
+proc shellDoesAr {} {
+  set shdo "sh_app1.sql"
+  forcedelete $shdo
+  set fd [open $shdo w]
+  puts $fd ".help\n.q"
+  close $fd
+  set res [catchcmd "-batch -cmd \".read $shdo\""]
+  return [regexp {^.archive} [lindex $res 1]]
+}
+
+set ::vf "&vfs=apndvfs"
+
+# Return file offset of appendvfs portion of a file, or {} if none such.
+proc fosAvfs {fname} {
+  if {[file size $fname] < 25} {
+    return {}
+  }
+  if {[catch {set fd [open $fname rb]}]} {
+    return {}
+  }
+  seek $fd -25 end
+  set am [read $fd 17]
+  set ao [read $fd 8]
+  close $fd
+  if {$am ne "Start-Of-SQLite3-"} {
+    return {}
+  }
+  binary scan $ao "W" rvo
+  return $rvo
+}
+
+do_test 1.0 {
+  set results {}
+  set out [open $::fza wb]
+  close $out
+  sqlite3 adb "file:$::fza?mode=rwc$::vf" -uri 1
+  adb eval {
+    PRAGMA page_size=1024;
+    PRAGMA cache_size=10;
+    CREATE TABLE t1(a TEXT);
+    INSERT INTO t1 VALUES ('dog'),('cat');
+    SELECT group_concat(a) as pets FROM (SELECT a FROM t1 ORDER BY a);
+  } { lappend results $pets }
+  adb close
+  lappend results [fosAvfs $fza]
+  set ::result [join $results " | "]
+} {cat,dog | 0}
+
+do_test 1.1 {
+  set results {}
+  sqlite3 adb "file:$::fza?mode=rw$::vf" -uri 1
+  adb eval {
+    SELECT group_concat(a) as pets FROM (SELECT a FROM t1 ORDER BY a DESC);
+  } { lappend results $pets }
+  adb close
+  set ::result [join $results " | "]
+} {dog,cat}
+
+do_test 1.2 {
+  set results {}
+  set out [open $::fa wb]
+  set ::tlo { "Just some text," "and more text," "ending at 3 lines." }
+  puts $out [join $::tlo "\n"]
+  close $out
+  set adbSz [file size $::fa]
+  sqlite3 adb "file:$::fa?mode=rwc$::vf" -uri 1
+  adb eval {
+    PRAGMA auto_vacuum = 0;
+    PRAGMA page_size=512;
+    PRAGMA cache_size=0;
+    CREATE TABLE t1(a TEXT);
+    INSERT INTO t1 VALUES ('dog'),('cat'),('pig');
+    SELECT group_concat(a) as pets FROM (SELECT a FROM t1 ORDER BY a);
+  } { lappend results $pets }
+  adb close
+  set adaSz [file size $::fa]
+  lappend results "Bytes before/after $adbSz/$adaSz"
+  set ::result [join $results " | "]
+} {cat,dog,pig | Bytes before/after 50/5145}
+
+do_test 1.3 {
+  set results {}
+  sqlite3 adb "file:$::fa?mode=rw$::vf" -uri 1
+  adb eval {
+    SELECT group_concat(a) as pets FROM (SELECT a FROM t1 ORDER BY a DESC);
+  } { lappend results $pets }
+  adb close
+  set ::result [join $results " | "]
+} {pig,dog,cat}
+
+do_test 1.4 {
+  set ::result [fosAvfs $fa]
+} {4096}
+
+do_test 2.1 {
+  set in [open $::fa r]
+  set tli {}
+  for {set i [llength $::tlo]} {$i > 0} {incr i -1} {
+    lappend tli [gets $in]
+  }
+  close $in
+  if { [join $tli ":"] ne [join $::tlo ":"] } {
+    set ::result "Appendee changed."
+  } else {
+    set ::result "Appendee intact."
+  }
+} {Appendee intact.}
+
+# Set of repeatable random integers for a couple tests.
+set ::nrint 50000
+proc rint {v} {
+  return [::tcl::mathfunc::int [expr $v * 100000]]
+}
+array set ::randints [list 0 [rint [::tcl::mathfunc::srand 0]]]
+for {set i 1} {$i < $::nrint} {incr i} {
+  set ::randints($i) [rint [::tcl::mathfunc::rand]]
+}
+
+do_test 3.1 {
+  set results {}
+  sqlite3 adb "file:$::fa?mode=rw$::vf" -uri 1
+  adb eval {
+    DROP TABLE t1;
+    PRAGMA cache_size=10;
+    CREATE TABLE ri (i INTEGER);
+    BEGIN;
+  }
+  for {set i 0} {$i < $::nrint} {incr i} {
+    set r $::randints($i)
+    set s $::randints([incr i])
+    set t $::randints([incr i])
+    set u $::randints([incr i])
+    set v $::randints([incr i])
+    adb eval {
+      INSERT INTO ri VALUES ($r),($s),($t),($u),($v)
+    }
+  }
+  adb eval {
+    COMMIT;
+    SELECT integrity_check as ic FROM pragma_integrity_check();
+  } { lappend results $ic }
+  set adbSz [file size $::fa]
+  set qr {}
+  adb eval {
+    SELECT count(*) as ic FROM ri;
+    DELETE FROM ri WHERE (i % 50) <> 25;
+    SELECT integrity_check as ic FROM pragma_integrity_check();
+    VACUUM;
+    SELECT integrity_check as ic FROM pragma_integrity_check();
+    SELECT count(*) as ic FROM ri;
+  } { lappend qr $ic }
+  adb close
+  set adaSz [file size $::fa]
+  set adba [expr ($adbSz + 0.1)/$adaSz]
+  # lappend results $adba
+  set results [concat $results [lrange $qr 0 2]]
+  lappend results [expr {$adba > 10.0}]
+  set ::result [join $results " | "]
+} "ok | $::nrint | ok | ok | 1"
+
+do_test 3.2 {
+  set results {}
+  sqlite3 adb "file:$::fa?mode=rw$::vf" -uri 1
+  adb eval {
+    SELECT integrity_check as ic FROM pragma_integrity_check();
+  } { lappend results $ic }
+  adb close
+  set ::result [join $results " | "]
+} {ok}
+
+# avfs-3.3. Test that appendvfs can grow by many pages and be written.
+do_test 3.3 {
+  set results {}
+  sqlite3 adb "file:$::fa?mode=rw$::vf" -uri 1
+  set npages 300
+  adb eval { BEGIN }
+  while {$npages > 0} {
+    adb eval { INSERT INTO ri VALUES (randomblob(1500)) }
+    incr npages -1
+  }
+  adb eval { COMMIT }
+  adb eval {
+    SELECT integrity_check as ic FROM pragma_integrity_check();
+  } { lappend results $ic }
+  adb close
+  set adaSzr [expr [file size $::fa] / 300.0 / 1500 ]
+  set okSzr [expr $adaSzr > 1.0 && $adaSzr < 1.3 ]
+  lappend results $okSzr
+  set ::result [join $results " | "]
+} {ok | 1}
+
+# avfs-3.4. Test that grown appendvfs can be reopened and appear intact.
+do_test 3.4 {
+  set results {}
+  sqlite3 adb "file:$::fa?mode=rw$::vf" -uri 1
+  adb eval {
+    SELECT integrity_check as ic FROM pragma_integrity_check();
+  } { lappend results $ic }
+  adb close
+  set ::result $ic
+} {ok}
+
+# avfs-3.5. Test that much grown appendvfs can shrink and reopen intact.
+do_test 3.5 {
+  set results {}
+  set adbsz [file size $::fa]
+  sqlite3 adb "file:$::fa?mode=rw$::vf" -uri 1
+  adb eval {
+    DELETE FROM ri WHERE rowid % 8 <> 0;
+    SELECT integrity_check as ic FROM pragma_integrity_check();
+    VACUUM;
+    SELECT integrity_check as ic FROM pragma_integrity_check();
+  } { lappend results $ic }
+  adb close
+  set adasz [file size $::fa]
+  lappend results [expr {$adbsz/$adasz > 5}]
+  sqlite3 adb "file:$::fa?mode=rw$::vf" -uri 1
+  adb eval {
+    SELECT integrity_check as ic FROM pragma_integrity_check();
+  } { lappend results $ic }
+  adb close
+  set ::result [join $results " | "]
+} {ok | ok | 1 | ok}
+
+set ::cliDoesAr [shellDoesAr]
+
+do_test 4.1 {
+  set shdo "sh_app1.sql"
+  set shod "sh_app1.adb"
+  forcedelete $shdo $shod
+  set ofd [open $shdo w]
+  if {$::cliDoesAr} {
+    puts $ofd ".ar -c"
+  } else {
+    puts $ofd "pragma page_size=512;"
+    puts $ofd "create table sqlar (a);"
+  }
+  puts $ofd ".tables"
+  puts $ofd ".q"
+  close $ofd
+  set ofd [open $shod wb]
+  puts $ofd "Some text."
+  close $ofd
+  set res [catchcmd "-append -batch -init $shdo $shod" ""]
+  lappend res [fosAvfs $shod]
+  forcedelete $shdo $shod
+  set ::result [join $res " | "]
+} {0 | sqlar | 4096}
+
+do_test 4.2 {
+  set shdo "sh_app1.sql"
+  set shod "sh_app1.adb"
+  forcedelete $shdo $shod
+  set ofd [open $shdo w]
+  if {$::cliDoesAr} {
+    puts $ofd ".ar -c"
+  } else {
+    puts $ofd "pragma page_size=512;"
+    puts $ofd "create table sqlar (a);"
+  }
+  puts $ofd ".tables"
+  puts $ofd ".q"
+  close $ofd
+  set ofd [open $shod wb]
+  close $ofd
+  set res [catchcmd "-append -batch -init $shdo $shod" ""]
+  lappend res [fosAvfs $shod]
+  forcedelete $shdo ; # Leave $shod for next test.
+  set ::result [join $res " | "]
+} {0 | sqlar | 0}
+
+do_test 4.3 {
+  set shdo "sh_app1.sql"
+  set shod "sh_app1.adb" ; # Same as test 4.2, reusing ADB.
+  forcedelete $shdo
+  set ofd [open $shdo w]
+  if {$::cliDoesAr} {
+    puts $ofd ".ar -u $shdo"
+    puts $ofd "select count(*) from sqlar where name = '$shdo';"
+  } else {
+    puts $ofd "insert into sqlar values (1);"
+    puts $ofd "select count(*) from sqlar;"
+  }
+  puts $ofd ".q"
+  close $ofd
+  set res [catchcmd "-append -batch -init $shdo $shod" ""]
+  sqlite3 adb "file:$shod?mode=rw$::vf" -uri 1
+  adb eval {
+    SELECT count(*) as n FROM sqlar
+  } { lappend res $n }
+  adb close
+  forcedelete $shdo $shod;
+  set ::result [join $res " | "]
+} {0 | 1 | 1}
+
+do_test 5.1 {
+  set fake "faketiny.sdb"
+  forcedelete $fake
+  set ofd [open $fake wb]
+  puts -nonewline $ofd "SQLite format 3"
+  puts -nonewline $ofd [binary format "c" 0]
+  puts -nonewline $ofd "Start-Of-SQLite3-"
+  puts -nonewline $ofd [binary format "W" 0]
+  close $ofd
+  if {[catch {sqlite3 adb "file:$fake?mode=rw$::vf" -uri 1}]} {
+    set res "Open failed."
+  } else {
+    adb close
+    set res "Opened when should not."
+  }
+  forcedelete $fake
+  set ::result $res
+} {Open failed.}
+
+do_test 5.2 {
+  set fake "faketiny.sdb"
+  forcedelete $fake
+  set ofd [open $fake wb]
+  set fakeAppendee "Dog ate my homework.\n"
+  puts -nonewline $ofd $fakeAppendee
+  puts -nonewline $ofd "SQLite format 3"
+  puts -nonewline $ofd [binary format "c" 0]
+  puts -nonewline $ofd "Start-Of-SQLite3-"
+  puts -nonewline $ofd [binary format "W" [string length $fakeAppendee]]
+  close $ofd
+  if {[catch {sqlite3 adb "file:$fake?mode=rw$::vf" -uri 1}]} {
+    set res "Open failed."
+  } else {
+    adb close
+    set res "Opened when should not."
+  }
+  forcedelete $fake
+  set ::result $res
+} {Open failed.}
+
+forcedelete $::fa $::fza
+
+unset -nocomplain ::fa ::fza ::tlo ::result ::randints ::nrint ::cliDoesAr
+
+finish_test
diff --git a/test/avtrans.test b/test/avtrans.test
new file mode 100644
index 0000000000000000000000000000000000000000..6fc4a3e3937fac8d350fefdfe24587aeb5baff7b
--- /dev/null
+++ b/test/avtrans.test
@@ -0,0 +1,927 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  This
+# file is a copy of "trans.test" modified to run under autovacuum mode.
+# the point is to stress the autovacuum logic and try to get it to fail.
+#
+# $Id: avtrans.test,v 1.6 2007/09/12 17:01:45 danielk1977 Exp $
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+
+# Create several tables to work with.
+#
+do_test avtrans-1.0 {
+  execsql { PRAGMA auto_vacuum=full }
+  wal_set_journal_mode
+  execsql { 
+    CREATE TABLE one(a int PRIMARY KEY, b text);
+    INSERT INTO one VALUES(1,'one');
+    INSERT INTO one VALUES(2,'two');
+    INSERT INTO one VALUES(3,'three');
+    SELECT b FROM one ORDER BY a;
+  }
+} {one two three}
+do_test avtrans-1.0.1 { execsql { PRAGMA auto_vacuum } } 1
+do_test avtrans-1.1 {
+  execsql {
+    CREATE TABLE two(a int PRIMARY KEY, b text);
+    INSERT INTO two VALUES(1,'I');
+    INSERT INTO two VALUES(5,'V');
+    INSERT INTO two VALUES(10,'X');
+    SELECT b FROM two ORDER BY a;
+  }
+} {I V X}
+do_test avtrans-1.9 {
+  sqlite3 altdb test.db
+  execsql {SELECT b FROM one ORDER BY a} altdb
+} {one two three}
+do_test avtrans-1.10 {
+  execsql {SELECT b FROM two ORDER BY a} altdb
+} {I V X}
+integrity_check avtrans-1.11
+wal_check_journal_mode avtrans-1.12
+
+# Basic transactions
+#
+do_test avtrans-2.1 {
+  set v [catch {execsql {BEGIN}} msg]
+  lappend v $msg
+} {0 {}}
+do_test avtrans-2.2 {
+  set v [catch {execsql {END}} msg]
+  lappend v $msg
+} {0 {}}
+do_test avtrans-2.3 {
+  set v [catch {execsql {BEGIN TRANSACTION}} msg]
+  lappend v $msg
+} {0 {}}
+do_test avtrans-2.4 {
+  set v [catch {execsql {COMMIT TRANSACTION}} msg]
+  lappend v $msg
+} {0 {}}
+do_test avtrans-2.5 {
+  set v [catch {execsql {BEGIN TRANSACTION 'foo'}} msg]
+  lappend v $msg
+} {0 {}}
+do_test avtrans-2.6 {
+  set v [catch {execsql {ROLLBACK TRANSACTION 'foo'}} msg]
+  lappend v $msg
+} {0 {}}
+do_test avtrans-2.10 {
+  execsql {
+    BEGIN;
+    SELECT a FROM one ORDER BY a;
+    SELECT a FROM two ORDER BY a;
+    END;
+  }
+} {1 2 3 1 5 10}
+integrity_check avtrans-2.11
+wal_check_journal_mode avtrans-2.12
+
+# Check the locking behavior
+#
+sqlite3_soft_heap_limit 0
+do_test avtrans-3.1 {
+  execsql {
+    BEGIN;
+    UPDATE one SET a = 0 WHERE 0;
+    SELECT a FROM one ORDER BY a;
+  }
+} {1 2 3}
+do_test avtrans-3.2 {
+  catchsql {
+    SELECT a FROM two ORDER BY a;
+  } altdb
+} {0 {1 5 10}}
+do_test avtrans-3.3 {
+  catchsql {
+    SELECT a FROM one ORDER BY a;
+  } altdb
+} {0 {1 2 3}}
+do_test avtrans-3.4 {
+  catchsql {
+    INSERT INTO one VALUES(4,'four');
+  }
+} {0 {}}
+do_test avtrans-3.5 {
+  catchsql {
+    SELECT a FROM two ORDER BY a;
+  } altdb
+} {0 {1 5 10}}
+do_test avtrans-3.6 {
+  catchsql {
+    SELECT a FROM one ORDER BY a;
+  } altdb
+} {0 {1 2 3}}
+do_test avtrans-3.7 {
+  catchsql {
+    INSERT INTO two VALUES(4,'IV');
+  }
+} {0 {}}
+do_test avtrans-3.8 {
+  catchsql {
+    SELECT a FROM two ORDER BY a;
+  } altdb
+} {0 {1 5 10}}
+do_test avtrans-3.9 {
+  catchsql {
+    SELECT a FROM one ORDER BY a;
+  } altdb
+} {0 {1 2 3}}
+do_test avtrans-3.10 {
+  execsql {END TRANSACTION}
+} {}
+do_test avtrans-3.11 {
+  set v [catch {execsql {
+    SELECT a FROM two ORDER BY a;
+  } altdb} msg]
+  lappend v $msg
+} {0 {1 4 5 10}}
+do_test avtrans-3.12 {
+  set v [catch {execsql {
+    SELECT a FROM one ORDER BY a;
+  } altdb} msg]
+  lappend v $msg
+} {0 {1 2 3 4}}
+do_test avtrans-3.13 {
+  set v [catch {execsql {
+    SELECT a FROM two ORDER BY a;
+  } db} msg]
+  lappend v $msg
+} {0 {1 4 5 10}}
+do_test avtrans-3.14 {
+  set v [catch {execsql {
+    SELECT a FROM one ORDER BY a;
+  } db} msg]
+  lappend v $msg
+} {0 {1 2 3 4}}
+sqlite3_soft_heap_limit $cmdlinearg(soft-heap-limit)
+integrity_check avtrans-3.15
+
+do_test avtrans-4.1 {
+  set v [catch {execsql {
+    COMMIT;
+  } db} msg]
+  lappend v $msg
+} {1 {cannot commit - no transaction is active}}
+do_test avtrans-4.2 {
+  set v [catch {execsql {
+    ROLLBACK;
+  } db} msg]
+  lappend v $msg
+} {1 {cannot rollback - no transaction is active}}
+do_test avtrans-4.3 {
+  catchsql {
+    BEGIN TRANSACTION;
+    UPDATE two SET a = 0 WHERE 0;
+    SELECT a FROM two ORDER BY a;
+  } db
+} {0 {1 4 5 10}}
+do_test avtrans-4.4 {
+  catchsql {
+    SELECT a FROM two ORDER BY a;
+  } altdb
+} {0 {1 4 5 10}}
+do_test avtrans-4.5 {
+  catchsql {
+    SELECT a FROM one ORDER BY a;
+  } altdb
+} {0 {1 2 3 4}}
+do_test avtrans-4.6 {
+  catchsql {
+    BEGIN TRANSACTION;
+    SELECT a FROM one ORDER BY a;
+  } db
+} {1 {cannot start a transaction within a transaction}}
+do_test avtrans-4.7 {
+  catchsql {
+    SELECT a FROM two ORDER BY a;
+  } altdb
+} {0 {1 4 5 10}}
+do_test avtrans-4.8 {
+  catchsql {
+    SELECT a FROM one ORDER BY a;
+  } altdb
+} {0 {1 2 3 4}}
+do_test avtrans-4.9 {
+  set v [catch {execsql {
+    END TRANSACTION;
+    SELECT a FROM two ORDER BY a;
+  } db} msg]
+  lappend v $msg
+} {0 {1 4 5 10}}
+do_test avtrans-4.10 {
+  set v [catch {execsql {
+    SELECT a FROM two ORDER BY a;
+  } altdb} msg]
+  lappend v $msg
+} {0 {1 4 5 10}}
+do_test avtrans-4.11 {
+  set v [catch {execsql {
+    SELECT a FROM one ORDER BY a;
+  } altdb} msg]
+  lappend v $msg
+} {0 {1 2 3 4}}
+integrity_check avtrans-4.12
+do_test avtrans-4.98 {
+  altdb close
+  execsql {
+    DROP TABLE one;
+    DROP TABLE two;
+  }
+} {}
+integrity_check avtrans-4.99
+
+# Check out the commit/rollback behavior of the database
+#
+do_test avtrans-5.1 {
+  execsql {SELECT name FROM sqlite_master WHERE type='table' ORDER BY name}
+} {}
+do_test avtrans-5.2 {
+  execsql {BEGIN TRANSACTION}
+  execsql {SELECT name FROM sqlite_master WHERE type='table' ORDER BY name}
+} {}
+do_test avtrans-5.3 {
+  execsql {CREATE TABLE one(a text, b int)}
+  execsql {SELECT name FROM sqlite_master WHERE type='table' ORDER BY name}
+} {one}
+do_test avtrans-5.4 {
+  execsql {SELECT a,b FROM one ORDER BY b}
+} {}
+do_test avtrans-5.5 {
+  execsql {INSERT INTO one(a,b) VALUES('hello', 1)}
+  execsql {SELECT a,b FROM one ORDER BY b}
+} {hello 1}
+do_test avtrans-5.6 {
+  execsql {ROLLBACK}
+  execsql {SELECT name FROM sqlite_master WHERE type='table' ORDER BY name}
+} {}
+do_test avtrans-5.7 {
+  set v [catch {
+    execsql {SELECT a,b FROM one ORDER BY b}
+  } msg]
+  lappend v $msg
+} {1 {no such table: one}}
+
+# Test commits and rollbacks of table CREATE TABLEs, CREATE INDEXs
+# DROP TABLEs and DROP INDEXs
+#
+do_test avtrans-5.8 {
+  execsql {
+    SELECT name fROM sqlite_master 
+    WHERE type='table' OR type='index'
+    ORDER BY name
+  }
+} {}
+do_test avtrans-5.9 {
+  execsql {
+    BEGIN TRANSACTION;
+    CREATE TABLE t1(a int, b int, c int);
+    SELECT name fROM sqlite_master 
+    WHERE type='table' OR type='index'
+    ORDER BY name;
+  }
+} {t1}
+do_test avtrans-5.10 {
+  execsql {
+    CREATE INDEX i1 ON t1(a);
+    SELECT name fROM sqlite_master 
+    WHERE type='table' OR type='index'
+    ORDER BY name;
+  }
+} {i1 t1}
+do_test avtrans-5.11 {
+  execsql {
+    COMMIT;
+    SELECT name fROM sqlite_master 
+    WHERE type='table' OR type='index'
+    ORDER BY name;
+  }
+} {i1 t1}
+do_test avtrans-5.12 {
+  execsql {
+    BEGIN TRANSACTION;
+    CREATE TABLE t2(a int, b int, c int);
+    CREATE INDEX i2a ON t2(a);
+    CREATE INDEX i2b ON t2(b);
+    DROP TABLE t1;
+    SELECT name fROM sqlite_master 
+    WHERE type='table' OR type='index'
+    ORDER BY name;
+  }
+} {i2a i2b t2}
+do_test avtrans-5.13 {
+  execsql {
+    ROLLBACK;
+    SELECT name fROM sqlite_master 
+    WHERE type='table' OR type='index'
+    ORDER BY name;
+  }
+} {i1 t1}
+do_test avtrans-5.14 {
+  execsql {
+    BEGIN TRANSACTION;
+    DROP INDEX i1;
+    SELECT name fROM sqlite_master 
+    WHERE type='table' OR type='index'
+    ORDER BY name;
+  }
+} {t1}
+do_test avtrans-5.15 {
+  execsql {
+    ROLLBACK;
+    SELECT name fROM sqlite_master 
+    WHERE type='table' OR type='index'
+    ORDER BY name;
+  }
+} {i1 t1}
+do_test avtrans-5.16 {
+  execsql {
+    BEGIN TRANSACTION;
+    DROP INDEX i1;
+    CREATE TABLE t2(x int, y int, z int);
+    CREATE INDEX i2x ON t2(x);
+    CREATE INDEX i2y ON t2(y);
+    INSERT INTO t2 VALUES(1,2,3);
+    SELECT name fROM sqlite_master 
+    WHERE type='table' OR type='index'
+    ORDER BY name;
+  }
+} {i2x i2y t1 t2}
+do_test avtrans-5.17 {
+  execsql {
+    COMMIT;
+    SELECT name fROM sqlite_master 
+    WHERE type='table' OR type='index'
+    ORDER BY name;
+  }
+} {i2x i2y t1 t2}
+do_test avtrans-5.18 {
+  execsql {
+    SELECT * FROM t2;
+  }
+} {1 2 3}
+do_test avtrans-5.19 {
+  execsql {
+    SELECT x FROM t2 WHERE y=2;
+  }
+} {1}
+do_test avtrans-5.20 {
+  execsql {
+    BEGIN TRANSACTION;
+    DROP TABLE t1;
+    DROP TABLE t2;
+    SELECT name fROM sqlite_master 
+    WHERE type='table' OR type='index'
+    ORDER BY name;
+  }
+} {}
+do_test avtrans-5.21 {
+  set r [catch {execsql {
+    SELECT * FROM t2
+  }} msg]
+  lappend r $msg
+} {1 {no such table: t2}}
+do_test avtrans-5.22 {
+  execsql {
+    ROLLBACK;
+    SELECT name fROM sqlite_master 
+    WHERE type='table' OR type='index'
+    ORDER BY name;
+  }
+} {i2x i2y t1 t2}
+do_test avtrans-5.23 {
+  execsql {
+    SELECT * FROM t2;
+  }
+} {1 2 3}
+integrity_check avtrans-5.23
+
+
+# Try to DROP and CREATE tables and indices with the same name
+# within a transaction.  Make sure ROLLBACK works.
+#
+do_test avtrans-6.1 {
+  execsql2 {
+    INSERT INTO t1 VALUES(1,2,3);
+    BEGIN TRANSACTION;
+    DROP TABLE t1;
+    CREATE TABLE t1(p,q,r);
+    ROLLBACK;
+    SELECT * FROM t1;
+  }
+} {a 1 b 2 c 3}
+do_test avtrans-6.2 {
+  execsql2 {
+    INSERT INTO t1 VALUES(1,2,3);
+    BEGIN TRANSACTION;
+    DROP TABLE t1;
+    CREATE TABLE t1(p,q,r);
+    COMMIT;
+    SELECT * FROM t1;
+  }
+} {}
+do_test avtrans-6.3 {
+  execsql2 {
+    INSERT INTO t1 VALUES(1,2,3);
+    SELECT * FROM t1;
+  }
+} {p 1 q 2 r 3}
+do_test avtrans-6.4 {
+  execsql2 {
+    BEGIN TRANSACTION;
+    DROP TABLE t1;
+    CREATE TABLE t1(a,b,c);
+    INSERT INTO t1 VALUES(4,5,6);
+    SELECT * FROM t1;
+    DROP TABLE t1;
+  }
+} {a 4 b 5 c 6}
+do_test avtrans-6.5 {
+  execsql2 {
+    ROLLBACK;
+    SELECT * FROM t1;
+  }
+} {p 1 q 2 r 3}
+do_test avtrans-6.6 {
+  execsql2 {
+    BEGIN TRANSACTION;
+    DROP TABLE t1;
+    CREATE TABLE t1(a,b,c);
+    INSERT INTO t1 VALUES(4,5,6);
+    SELECT * FROM t1;
+    DROP TABLE t1;
+  }
+} {a 4 b 5 c 6}
+do_test avtrans-6.7 {
+  catchsql {
+    COMMIT;
+    SELECT * FROM t1;
+  }
+} {1 {no such table: t1}}
+
+# Repeat on a table with an automatically generated index.
+#
+do_test avtrans-6.10 {
+  execsql2 {
+    CREATE TABLE t1(a unique,b,c);
+    INSERT INTO t1 VALUES(1,2,3);
+    BEGIN TRANSACTION;
+    DROP TABLE t1;
+    CREATE TABLE t1(p unique,q,r);
+    ROLLBACK;
+    SELECT * FROM t1;
+  }
+} {a 1 b 2 c 3}
+do_test avtrans-6.11 {
+  execsql2 {
+    BEGIN TRANSACTION;
+    DROP TABLE t1;
+    CREATE TABLE t1(p unique,q,r);
+    COMMIT;
+    SELECT * FROM t1;
+  }
+} {}
+do_test avtrans-6.12 {
+  execsql2 {
+    INSERT INTO t1 VALUES(1,2,3);
+    SELECT * FROM t1;
+  }
+} {p 1 q 2 r 3}
+do_test avtrans-6.13 {
+  execsql2 {
+    BEGIN TRANSACTION;
+    DROP TABLE t1;
+    CREATE TABLE t1(a unique,b,c);
+    INSERT INTO t1 VALUES(4,5,6);
+    SELECT * FROM t1;
+    DROP TABLE t1;
+  }
+} {a 4 b 5 c 6}
+do_test avtrans-6.14 {
+  execsql2 {
+    ROLLBACK;
+    SELECT * FROM t1;
+  }
+} {p 1 q 2 r 3}
+do_test avtrans-6.15 {
+  execsql2 {
+    BEGIN TRANSACTION;
+    DROP TABLE t1;
+    CREATE TABLE t1(a unique,b,c);
+    INSERT INTO t1 VALUES(4,5,6);
+    SELECT * FROM t1;
+    DROP TABLE t1;
+  }
+} {a 4 b 5 c 6}
+do_test avtrans-6.16 {
+  catchsql {
+    COMMIT;
+    SELECT * FROM t1;
+  }
+} {1 {no such table: t1}}
+
+do_test avtrans-6.20 {
+  execsql {
+    CREATE TABLE t1(a integer primary key,b,c);
+    INSERT INTO t1 VALUES(1,-2,-3);
+    INSERT INTO t1 VALUES(4,-5,-6);
+    SELECT * FROM t1;
+  }
+} {1 -2 -3 4 -5 -6}
+do_test avtrans-6.21 {
+  execsql {
+    CREATE INDEX i1 ON t1(b);
+    SELECT * FROM t1 WHERE b<1;
+  }
+} {4 -5 -6 1 -2 -3}
+do_test avtrans-6.22 {
+  execsql {
+    BEGIN TRANSACTION;
+    DROP INDEX i1;
+    SELECT * FROM t1 WHERE b<1;
+    ROLLBACK;
+  }
+} {1 -2 -3 4 -5 -6}
+do_test avtrans-6.23 {
+  execsql {
+    SELECT * FROM t1 WHERE b<1;
+  }
+} {4 -5 -6 1 -2 -3}
+do_test avtrans-6.24 {
+  execsql {
+    BEGIN TRANSACTION;
+    DROP TABLE t1;
+    ROLLBACK;
+    SELECT * FROM t1 WHERE b<1;
+  }
+} {4 -5 -6 1 -2 -3}
+
+do_test avtrans-6.25 {
+  execsql {
+    BEGIN TRANSACTION;
+    DROP INDEX i1;
+    CREATE INDEX i1 ON t1(c);
+    SELECT * FROM t1 WHERE b<1;
+  }
+} {1 -2 -3 4 -5 -6}
+do_test avtrans-6.26 {
+  execsql {
+    SELECT * FROM t1 WHERE c<1;
+  }
+} {4 -5 -6 1 -2 -3}
+do_test avtrans-6.27 {
+  execsql {
+    ROLLBACK;
+    SELECT * FROM t1 WHERE b<1;
+  }
+} {4 -5 -6 1 -2 -3}
+do_test avtrans-6.28 {
+  execsql {
+    SELECT * FROM t1 WHERE c<1;
+  }
+} {1 -2 -3 4 -5 -6}
+
+# The following repeats steps 6.20 through 6.28, but puts a "unique"
+# constraint the first field of the table in order to generate an
+# automatic index.
+#
+do_test avtrans-6.30 {
+  execsql {
+    BEGIN TRANSACTION;
+    DROP TABLE t1;
+    CREATE TABLE t1(a int unique,b,c);
+    COMMIT;
+    INSERT INTO t1 VALUES(1,-2,-3);
+    INSERT INTO t1 VALUES(4,-5,-6);
+    SELECT * FROM t1 ORDER BY a;
+  }
+} {1 -2 -3 4 -5 -6}
+do_test avtrans-6.31 {
+  execsql {
+    CREATE INDEX i1 ON t1(b);
+    SELECT * FROM t1 WHERE b<1;
+  }
+} {4 -5 -6 1 -2 -3}
+do_test avtrans-6.32 {
+  execsql {
+    BEGIN TRANSACTION;
+    DROP INDEX i1;
+    SELECT * FROM t1 WHERE b<1;
+    ROLLBACK;
+  }
+} {1 -2 -3 4 -5 -6}
+do_test avtrans-6.33 {
+  execsql {
+    SELECT * FROM t1 WHERE b<1;
+  }
+} {4 -5 -6 1 -2 -3}
+do_test avtrans-6.34 {
+  execsql {
+    BEGIN TRANSACTION;
+    DROP TABLE t1;
+    ROLLBACK;
+    SELECT * FROM t1 WHERE b<1;
+  }
+} {4 -5 -6 1 -2 -3}
+
+do_test avtrans-6.35 {
+  execsql {
+    BEGIN TRANSACTION;
+    DROP INDEX i1;
+    CREATE INDEX i1 ON t1(c);
+    SELECT * FROM t1 WHERE b<1;
+  }
+} {1 -2 -3 4 -5 -6}
+do_test avtrans-6.36 {
+  execsql {
+    SELECT * FROM t1 WHERE c<1;
+  }
+} {4 -5 -6 1 -2 -3}
+do_test avtrans-6.37 {
+  execsql {
+    DROP INDEX i1;
+    SELECT * FROM t1 WHERE c<1;
+  }
+} {1 -2 -3 4 -5 -6}
+do_test avtrans-6.38 {
+  execsql {
+    ROLLBACK;
+    SELECT * FROM t1 WHERE b<1;
+  }
+} {4 -5 -6 1 -2 -3}
+do_test avtrans-6.39 {
+  execsql {
+    SELECT * FROM t1 WHERE c<1;
+  }
+} {1 -2 -3 4 -5 -6}
+integrity_check avtrans-6.40
+
+ifcapable !floatingpoint {
+  finish_test
+  return
+}
+
+# Test to make sure rollback restores the database back to its original
+# state.
+#
+do_test avtrans-7.1 {
+  execsql {BEGIN}
+  for {set i 0} {$i<1000} {incr i} {
+    set r1 [expr {rand()}]
+    set r2 [expr {rand()}]
+    set r3 [expr {rand()}]
+    execsql "INSERT INTO t2 VALUES($r1,$r2,$r3)"
+  }
+  execsql {COMMIT}
+  set ::checksum [execsql {SELECT md5sum(x,y,z) FROM t2}]
+  set ::checksum2 [
+    execsql {SELECT md5sum(type,name,tbl_name,rootpage,sql) FROM sqlite_master}
+  ]
+  execsql {SELECT count(*) FROM t2}
+} {1001}
+do_test avtrans-7.2 {
+  execsql {SELECT md5sum(x,y,z) FROM t2}
+} $checksum
+do_test avtrans-7.2.1 {
+  execsql {SELECT md5sum(type,name,tbl_name,rootpage,sql) FROM sqlite_master}
+} $checksum2
+do_test avtrans-7.3 {
+  execsql {
+    BEGIN;
+    DELETE FROM t2;
+    ROLLBACK;
+    SELECT md5sum(x,y,z) FROM t2;
+  }
+} $checksum
+do_test avtrans-7.4 {
+  execsql {
+    BEGIN;
+    INSERT INTO t2 SELECT * FROM t2;
+    ROLLBACK;
+    SELECT md5sum(x,y,z) FROM t2;
+  }
+} $checksum
+do_test avtrans-7.5 {
+  execsql {
+    BEGIN;
+    DELETE FROM t2;
+    ROLLBACK;
+    SELECT md5sum(x,y,z) FROM t2;
+  }
+} $checksum
+do_test avtrans-7.6 {
+  execsql {
+    BEGIN;
+    INSERT INTO t2 SELECT * FROM t2;
+    ROLLBACK;
+    SELECT md5sum(x,y,z) FROM t2;
+  }
+} $checksum
+do_test avtrans-7.7 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t3 AS SELECT * FROM t2;
+    INSERT INTO t2 SELECT * FROM t3;
+    ROLLBACK;
+    SELECT md5sum(x,y,z) FROM t2;
+  }
+} $checksum
+do_test avtrans-7.8 {
+  execsql {SELECT md5sum(type,name,tbl_name,rootpage,sql) FROM sqlite_master}
+} $checksum2
+ifcapable tempdb {
+  do_test avtrans-7.9 {
+    execsql {
+      BEGIN;
+      CREATE TEMP TABLE t3 AS SELECT * FROM t2;
+      INSERT INTO t2 SELECT * FROM t3;
+      ROLLBACK;
+      SELECT md5sum(x,y,z) FROM t2;
+    }
+  } $checksum
+}
+do_test avtrans-7.10 {
+  execsql {SELECT md5sum(type,name,tbl_name,rootpage,sql) FROM sqlite_master}
+} $checksum2
+ifcapable tempdb {
+  do_test avtrans-7.11 {
+    execsql {
+      BEGIN;
+      CREATE TEMP TABLE t3 AS SELECT * FROM t2;
+      INSERT INTO t2 SELECT * FROM t3;
+      DROP INDEX i2x;
+      DROP INDEX i2y;
+      CREATE INDEX i3a ON t3(x);
+      ROLLBACK;
+      SELECT md5sum(x,y,z) FROM t2;
+    }
+  } $checksum
+}
+do_test avtrans-7.12 {
+  execsql {SELECT md5sum(type,name,tbl_name,rootpage,sql) FROM sqlite_master}
+} $checksum2
+ifcapable tempdb {
+  do_test avtrans-7.13 {
+    execsql {
+      BEGIN;
+      DROP TABLE t2;
+      ROLLBACK;
+      SELECT md5sum(x,y,z) FROM t2;
+    }
+  } $checksum
+}
+do_test avtrans-7.14 {
+  execsql {SELECT md5sum(type,name,tbl_name,rootpage,sql) FROM sqlite_master}
+} $checksum2
+integrity_check avtrans-7.15
+
+# Arrange for another process to begin modifying the database but abort
+# and die in the middle of the modification.  Then have this process read
+# the database.  This process should detect the journal file and roll it
+# back.  Verify that this happens correctly.
+#
+set fd [open test.tcl w]
+puts $fd {
+  sqlite3 db test.db
+  db eval {
+    PRAGMA default_cache_size=20;
+    BEGIN;
+    CREATE TABLE t3 AS SELECT * FROM t2;
+    DELETE FROM t2;
+  }
+  sqlite_abort
+}
+close $fd
+do_test avtrans-8.1 {
+  catch {exec [info nameofexec] test.tcl}
+  execsql {SELECT md5sum(x,y,z) FROM t2}
+} $checksum
+do_test avtrans-8.2 {
+  execsql {SELECT md5sum(type,name,tbl_name,rootpage,sql) FROM sqlite_master}
+} $checksum2
+integrity_check avtrans-8.3
+
+# In the following sequence of tests, compute the MD5 sum of the content
+# of a table, make lots of modifications to that table, then do a rollback.
+# Verify that after the rollback, the MD5 checksum is unchanged.
+#
+do_test avtrans-9.1 {
+  execsql {
+    PRAGMA default_cache_size=10;
+  }
+  db close
+  sqlite3 db test.db
+  execsql {
+    BEGIN;
+    CREATE TABLE t3(x TEXT);
+    INSERT INTO t3 VALUES(randstr(10,400));
+    INSERT INTO t3 VALUES(randstr(10,400));
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3;
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3;
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3;
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3;
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3;
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3;
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3;
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3;
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3;
+    COMMIT;
+    SELECT count(*) FROM t3;
+  }
+} {1024}
+
+# The following procedure computes a "signature" for table "t3".  If
+# T3 changes in any way, the signature should change.  
+#
+# This is used to test ROLLBACK.  We gather a signature for t3, then
+# make lots of changes to t3, then rollback and take another signature.
+# The two signatures should be the same.
+#
+proc signature {} {
+  return [db eval {SELECT count(*), md5sum(x) FROM t3}]
+}
+
+# Repeat the following group of tests 20 times for quick testing and
+# 40 times for full testing.  Each iteration of the test makes table
+# t3 a little larger, and thus takes a little longer, so doing 40 tests
+# is more than 2.0 times slower than doing 20 tests.  Considerably more.
+#
+if {[info exists G(isquick)]} {
+  set limit 20
+} else {
+  set limit 40
+}
+
+# Do rollbacks.  Make sure the signature does not change.
+#
+for {set i 2} {$i<=$limit} {incr i} {
+  set ::sig [signature]
+  set cnt [lindex $::sig 0]
+  if {$i%2==0} {
+    execsql {PRAGMA fullfsync=ON}
+  } else {
+    execsql {PRAGMA fullfsync=OFF}
+  }
+  set sqlite_sync_count 0
+  set sqlite_fullsync_count 0
+  do_test avtrans-9.$i.1-$cnt {
+     execsql {
+       BEGIN;
+       DELETE FROM t3 WHERE random()%10!=0;
+       INSERT INTO t3 SELECT randstr(10,10)||x FROM t3;
+       INSERT INTO t3 SELECT randstr(10,10)||x FROM t3;
+       ROLLBACK;
+     }
+     signature
+  } $sig
+  do_test avtrans-9.$i.2-$cnt {
+     execsql {
+       BEGIN;
+       DELETE FROM t3 WHERE random()%10!=0;
+       INSERT INTO t3 SELECT randstr(10,10)||x FROM t3;
+       DELETE FROM t3 WHERE random()%10!=0;
+       INSERT INTO t3 SELECT randstr(10,10)||x FROM t3;
+       ROLLBACK;
+     }
+     signature
+  } $sig
+  if {$i<$limit} {
+    do_test avtrans-9.$i.3-$cnt {
+       execsql {
+         INSERT INTO t3 SELECT randstr(10,400) FROM t3 WHERE random()%10==0;
+       }
+    } {}
+    if {$tcl_platform(platform)=="unix"} {
+      do_test avtrans-9.$i.4-$cnt {
+         expr {$sqlite_sync_count>0}
+      } 1
+      ifcapable pager_pragmas {
+        do_test avtrans-9.$i.5-$cnt {
+           expr {$sqlite_fullsync_count>0}
+        } [expr {$i%2==0}]
+      } else {
+        do_test avtrans-9.$i.5-$cnt {
+           expr {$sqlite_fullsync_count==0}
+        } {1}
+      }
+    }
+    wal_check_journal_mode avtrans-9.$i-6.$cnt
+  }
+  set ::pager_old_format 0
+}
+integrity_check avtrans-10.1
+wal_check_journal_mode avtrans-10.2
+   
+finish_test
diff --git a/test/backcompat.test b/test/backcompat.test
new file mode 100644
index 0000000000000000000000000000000000000000..d477d4466c4dde3dd118ccc4e949d40c8ec4ca14
--- /dev/null
+++ b/test/backcompat.test
@@ -0,0 +1,524 @@
+# 2010 August 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing that the current version of SQLite
+# is capable of reading and writing databases created by previous
+# versions, and vice-versa.
+#
+# To use this test, old versions of the testfixture process should be
+# copied into the working directory alongside the new version. The old
+# versions should be named "testfixtureXXX" (or testfixtureXXX.exe on
+# windows), where XXX can be any string.
+#
+# This test file uses the tcl code for controlling a second testfixture
+# process located in lock_common.tcl. See the commments in lock_common.tcl 
+# for documentation of the available commands.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+source $testdir/malloc_common.tcl
+source $testdir/bc_common.tcl
+db close
+
+if {"" == [bc_find_binaries backcompat.test]} {
+  finish_test
+  return
+}
+
+proc do_backcompat_test {rv bin1 bin2 script} {
+
+  forcedelete test.db
+
+  if {$bin1 != ""} { set ::bc_chan1 [launch_testfixture $bin1] }
+  set ::bc_chan2 [launch_testfixture $bin2]
+
+  if { $rv } {
+    proc code2 {tcl} { uplevel #0 $tcl }
+    if {$bin1 != ""} { proc code2 {tcl} { testfixture $::bc_chan1 $tcl } }
+    proc code1 {tcl} { testfixture $::bc_chan2 $tcl }
+  } else {
+    proc code1 {tcl} { uplevel #0 $tcl }
+    if {$bin1 != ""} { proc code1 {tcl} { testfixture $::bc_chan1 $tcl } }
+    proc code2 {tcl} { testfixture $::bc_chan2 $tcl }
+  }
+
+  proc sql1 sql { code1 [list db eval $sql] }
+  proc sql2 sql { code2 [list db eval $sql] }
+
+  code1 { sqlite3 db test.db }
+  code2 { sqlite3 db test.db }
+
+  foreach c {code1 code2} {
+    $c {
+      set v [split [db version] .]
+      if {[llength $v]==3} {lappend v 0}
+      set ::sqlite_libversion [format \
+        "%d%.2d%.2d%.2d" [lindex $v 0] [lindex $v 1] [lindex $v 2] [lindex $v 3]
+      ]
+    }
+  }
+
+  uplevel $script
+
+  catch { code1 { db close } }
+  catch { code2 { db close } }
+  catch { close $::bc_chan2 }
+  catch { close $::bc_chan1 }
+
+
+}
+
+array set ::incompatible [list]
+proc do_allbackcompat_test {script} {
+
+  foreach bin $::BC(binaries) {
+    set nErr [set_test_counter errors]
+    foreach dir {0 1} {
+
+      set bintag $bin
+      regsub {.*testfixture\.} $bintag {} bintag
+      set bintag [string map {\.exe {}} $bintag]
+      if {$bintag == ""} {set bintag self}
+      set ::bcname ".$bintag.$dir."
+
+      rename do_test _do_test
+      proc do_test {nm sql res} {
+        set nm [regsub {\.} $nm $::bcname]
+        uplevel [list _do_test $nm $sql $res]
+      }
+
+      do_backcompat_test $dir {} $bin $script
+
+      rename do_test {}
+      rename _do_test do_test
+    }
+    if { $nErr < [set_test_counter errors] } {
+      set ::incompatible([get_version $bin]) 1
+    }
+  }
+}
+
+proc read_file {zFile} {
+  set zData {}
+  if {[file exists $zFile]} {
+    set fd [open $zFile]
+    fconfigure $fd -translation binary
+
+    if {[file size $zFile]<=$::sqlite_pending_byte || $zFile != "test.db"} {
+      set zData [read $fd]
+    } else {
+      set zData [read $fd $::sqlite_pending_byte]
+      append zData [string repeat x 512]
+      seek $fd [expr $::sqlite_pending_byte+512] start
+      append zData [read $fd]
+    }
+
+    close $fd
+  }
+  return $zData
+}
+proc write_file {zFile zData} {
+  set fd [open $zFile w]
+  fconfigure $fd -translation binary
+  puts -nonewline $fd $zData
+  close $fd
+}
+proc read_file_system {} {
+  set ret [list]
+  foreach f {test.db test.db-journal test.db-wal} { lappend ret [read_file $f] }
+  set ret
+}
+proc write_file_system {data} {
+  foreach f {test.db test.db-journal test.db-wal} d $data { 
+    if {[string length $d] == 0} {
+      forcedelete $f
+    } else {
+      write_file $f $d
+    }
+  }
+}
+
+#-------------------------------------------------------------------------
+# Actual tests begin here.
+#
+# This first block of tests checks to see that the same database and 
+# journal files can be used by old and new versions. WAL and wal-index
+# files are tested separately below.
+#
+do_allbackcompat_test {
+
+  # Test that database files are backwards compatible.
+  #
+  do_test backcompat-1.1.1 { sql1 { 
+    CREATE TABLE t1(a PRIMARY KEY, b UNIQUE);
+    INSERT INTO t1 VALUES('abc', 'def');
+  } } {}
+  do_test backcompat-1.1.2 { sql2 { SELECT * FROM t1; } } {abc def}
+  do_test backcompat-1.1.3 { sql2 { INSERT INTO t1 VALUES('ghi', 'jkl'); } } {}
+  do_test backcompat-1.1.4 { sql1 { SELECT * FROM t1; } } {abc def ghi jkl}
+  do_test backcompat-1.1.5 { sql1 { PRAGMA integrity_check } } {ok}
+  do_test backcompat-1.1.6 { sql2 { PRAGMA integrity_check } } {ok}
+
+  # Test that one version can roll back a hot-journal file left in the
+  # file-system by the other version.
+  #
+  # Each test case is named "backcompat-1.X...", where X is either 0 or
+  # 1. If it is 0, then the current version creates a journal file that
+  # the old versions try to read. Otherwise, if X is 1, then the old version
+  # creates the journal file and we try to read it with the current version.
+  #
+  do_test backcompat-1.2.1 { sql1 {
+    PRAGMA cache_size = 10;
+    BEGIN;
+      INSERT INTO t1 VALUES(randomblob(400), randomblob(400));
+      INSERT INTO t1 SELECT randomblob(400), randomblob(400) FROM t1;
+      INSERT INTO t1 SELECT randomblob(400), randomblob(400) FROM t1;
+      INSERT INTO t1 SELECT randomblob(400), randomblob(400) FROM t1;
+      INSERT INTO t1 SELECT randomblob(400), randomblob(400) FROM t1;
+    COMMIT;
+  } } {}
+  set cksum1 [sql1 {SELECT md5sum(a), md5sum(b) FROM t1}]
+  set cksum2 [sql2 {SELECT md5sum(a), md5sum(b) FROM t1}]
+  do_test backcompat-1.2.2 [list string compare $cksum1 $cksum2] 0
+
+  do_test backcompat-1.2.3 { sql1 {
+    BEGIN;
+      UPDATE t1 SET a = randomblob(500);
+  } } {}
+  set data [read_file_system]
+
+  do_test backcompat-1.2.4 { sql1 { COMMIT } } {}
+
+  set same [expr {[sql2 {SELECT md5sum(a), md5sum(b) FROM t1}] == $cksum2}]
+  do_test backcompat-1.2.5 [list set {} $same] 0
+
+  code1 { db close }
+  code2 { db close }
+  write_file_system $data
+  code1 { sqlite3 db test.db }
+  code2 { sqlite3 db test.db }
+
+  set same [expr {[sql2 {SELECT md5sum(a), md5sum(b) FROM t1}] == $cksum2}]
+  do_test backcompat-1.2.6 [list set {} $same] 1
+
+  do_test backcompat-1.2.7 { sql1 { PRAGMA integrity_check } } {ok}
+  do_test backcompat-1.2.8 { sql2 { PRAGMA integrity_check } } {ok}
+
+  do_test backcompat-2.1 {
+    sql1 {
+      CREATE TABLE t2(a UNIQUE, b PRIMARY KEY, c UNIQUE);
+      INSERT INTO t2 VALUES(1,9,5);
+      INSERT INTO t2 VALUES(5,5,1);
+      INSERT INTO t2 VALUES(9,1,9);
+      SELECT * FROM t2 ORDER BY a;
+    }
+  } {1 9 5 5 5 1 9 1 9}
+  do_test backcompat-2.2 {
+    sql2 {
+      SELECT * FROM sqlite_master WHERE rootpage=-1;
+      SELECT * FROM t2 ORDER BY a;
+    }
+  } {1 9 5 5 5 1 9 1 9}
+  do_test backcompat-2.3 {
+    sql1 {
+      SELECT * FROM t2 ORDER BY b;
+    }
+  } {9 1 9 5 5 1 1 9 5}
+  do_test backcompat-2.4 {
+    sql2 {
+      SELECT * FROM t2 ORDER BY b;
+    }
+  } {9 1 9 5 5 1 1 9 5}
+  do_test backcompat-2.5 {
+    sql1 {
+      SELECT * FROM t2 ORDER BY c;
+    }
+  } {5 5 1 1 9 5 9 1 9}
+  do_test backcompat-2.6 {
+    sql2 {
+      SELECT * FROM t2 ORDER BY c;
+    }
+  } {5 5 1 1 9 5 9 1 9}
+}
+foreach k [lsort [array names ::incompatible]] {
+  puts "ERROR: Detected journal incompatibility with version $k"
+}
+unset ::incompatible
+
+
+#-------------------------------------------------------------------------
+# Test that WAL and wal-index files may be shared between different 
+# SQLite versions.
+#
+do_allbackcompat_test {
+  if {[code1 {sqlite3 -version}] >= "3.7.0"
+   && [code1 {set ::sqlite_options(wal)}]
+   && [code2 {sqlite3 -version}] >= "3.7.0"
+   && [code2 {set ::sqlite_options(wal)}]
+  } {
+
+    do_test backcompat-2.1.1 { sql1 {
+      PRAGMA journal_mode = WAL;
+      CREATE TABLE t1(a PRIMARY KEY, b UNIQUE);
+      INSERT INTO t1 VALUES('I', 1);
+      INSERT INTO t1 VALUES('II', 2);
+      INSERT INTO t1 VALUES('III', 3);
+      SELECT * FROM t1;
+    } } {wal I 1 II 2 III 3}
+    do_test backcompat-2.1.2 { sql2 {
+      SELECT * FROM t1;
+    } } {I 1 II 2 III 3}
+
+    set data [read_file_system]
+    code1 {db close}
+    code2 {db close}
+    write_file_system $data
+    code1 {sqlite3 db test.db}
+    code2 {sqlite3 db test.db}
+
+    # The WAL file now in the file-system was created by the [code1]
+    # process. Check that the [code2] process can recover the log.
+    #
+    do_test backcompat-2.1.3 { sql2 {
+      SELECT * FROM t1;
+    } } {I 1 II 2 III 3}
+    do_test backcompat-2.1.4 { sql1 {
+      SELECT * FROM t1;
+    } } {I 1 II 2 III 3}
+  }
+}
+
+#-------------------------------------------------------------------------
+# Test that FTS3 tables may be read/written by different versions of 
+# SQLite. 
+#
+ifcapable fts3 {
+  set contents {
+    CREATE VIRTUAL TABLE t1 USING fts3(a, b);
+  }
+  foreach {num doc} {
+    one "jk zm jk eczkjblu urvysbnykk sk gnl jk ttvgf hmjf"
+    two "jk bnhc jjrxpjkb mjpavjuhw fibokdry igju jk zm zm xh"
+    three "wxe ogttbykvt uhzq xr iaf zf urvysbnykk aayxpmve oacaxgjoo mjpavjuhw"
+    four "gazrt jk ephknonq myjp uenvbm wuvajhwqz jk zm xnxhf nvfasfh"
+    five "zm aayxpmve csjqxhgj xnxhf xr jk aayxpmve xnxhf zm zm"
+    six "sokcyf zm ogyavjvv jk zm fibokdry zm jk igju igju"
+    seven "vgsld bvgimjik xuprtlyle jk akmikrqyt jk aayxpmve hkfoudzftq ddjj"
+    eight "zm uhzq ovkyevlgv zk uenvbm csjqxhgj jk vgsld pgybs jk"
+    nine  "zm agmckuiu zexh fibokdry jk uhzq bu tugflixoex xnxhf sk"
+  } {
+    append contents "INSERT INTO t1 VALUES('$num', '$doc');"
+  }
+  do_allbackcompat_test {
+    if {[code1 {set ::sqlite_options(fts3)}]
+     && [code2 {set ::sqlite_options(fts3)}]
+    } {
+  
+      do_test backcompat-3.1 { sql1 $contents } {}
+  
+      foreach {n q} {
+        1    "SELECT * FROM t1 ORDER BY a, b"
+        2    "SELECT rowid FROM t1 WHERE a MATCH 'five'"
+        3    "SELECT * FROM t1 WHERE a MATCH 'five'"
+        4    "SELECT offsets(t1) FROM t1 WHERE t1 MATCH 'jk'"
+        5    "SELECT offsets(t1) FROM t1 WHERE t1 MATCH 'tug* OR eight'"
+      } {
+        do_test backcompat-3.2 [list sql1 $q] [sql2 $q]
+      }
+  
+      do_test backcompat-3.3 { sql1 {
+        INSERT INTO t1 SELECT * FROM t1;
+        INSERT INTO t1 SELECT * FROM t1;
+        INSERT INTO t1 SELECT * FROM t1;
+        INSERT INTO t1 SELECT * FROM t1;
+        INSERT INTO t1 SELECT * FROM t1;
+        INSERT INTO t1 SELECT * FROM t1;
+        INSERT INTO t1 SELECT * FROM t1;
+        INSERT INTO t1 SELECT * FROM t1;
+      } } {}
+  
+      foreach {n q} {
+        1    "SELECT * FROM t1 ORDER BY a, b"
+        2    "SELECT rowid FROM t1 WHERE a MATCH 'five'"
+        3    "SELECT * FROM t1 WHERE a MATCH 'five'"
+        4    "SELECT offsets(t1) FROM t1 WHERE t1 MATCH 'jk'"
+        5    "SELECT offsets(t1) FROM t1 WHERE t1 MATCH 'tug* OR eight'"
+      } {
+        do_test backcompat-3.4 [list sql1 $q] [sql2 $q]
+      }
+  
+      set alphabet "a b c d e f g h i j k l m n o p q r s t u v w x y z 1 2 3 4"
+      for {set i 0} {$i < 900} {incr i} {
+        set term "[lindex $alphabet [expr $i/30]][lindex $alphabet [expr $i%30]] "
+        sql1 "INSERT INTO t1 VALUES($i, '[string repeat $term 14]')"
+      }
+  
+      foreach {n q} {
+        1    "SELECT * FROM t1 ORDER BY a, b"
+        2    "SELECT rowid FROM t1 WHERE a MATCH 'five'"
+        3    "SELECT * FROM t1 WHERE a MATCH 'five'"
+        4    "SELECT offsets(t1) FROM t1 WHERE t1 MATCH 'jk'"
+        5    "SELECT offsets(t1) FROM t1 WHERE t1 MATCH 'tug* OR eight'"
+  
+        6    "SELECT offsets(t1) FROM t1 WHERE t1 MATCH 'aa'"
+        7    "SELECT offsets(t1) FROM t1 WHERE t1 MATCH '44'"
+        8    "SELECT offsets(t1) FROM t1 WHERE t1 MATCH 'a*'"
+      } {
+        do_test backcompat-3.5 [list sql1 $q] [sql2 $q]
+      }
+  
+      do_test backcompat-3.6 { 
+        sql1 "SELECT optimize(t1) FROM t1 LIMIT 1" 
+      } {{Index optimized}}
+  
+      foreach {n q} {
+        1    "SELECT * FROM t1 ORDER BY a, b"
+        2    "SELECT rowid FROM t1 WHERE a MATCH 'five'"
+        3    "SELECT * FROM t1 WHERE a MATCH 'five'"
+        4    "SELECT offsets(t1) FROM t1 WHERE t1 MATCH 'jk'"
+        5    "SELECT offsets(t1) FROM t1 WHERE t1 MATCH 'tug* OR eight'"
+  
+        6    "SELECT offsets(t1) FROM t1 WHERE t1 MATCH 'aa'"
+        7    "SELECT offsets(t1) FROM t1 WHERE t1 MATCH '44'"
+        8    "SELECT offsets(t1) FROM t1 WHERE t1 MATCH 'a*'"
+      } {
+        do_test backcompat-3.7 [list sql1 $q] [sql2 $q]
+      }
+
+      # Now test that an incremental merge can be started by one version
+      # and finished by another. And that the integrity-check still 
+      # passes.
+      do_test backcompat-3.8 {
+        sql1 { 
+          DROP TABLE IF EXISTS t1;
+          DROP TABLE IF EXISTS t2;
+          CREATE TABLE t1(docid, words);
+          CREATE VIRTUAL TABLE t2 USING fts3(words);
+        }
+        code1 [list source $testdir/genesis.tcl]
+        code1 { fts_kjv_genesis }
+        sql1 {
+          INSERT INTO t2 SELECT words FROM t1;
+          INSERT INTO t2 SELECT words FROM t1;
+          INSERT INTO t2 SELECT words FROM t1;
+          INSERT INTO t2 SELECT words FROM t1;
+          INSERT INTO t2 SELECT words FROM t1;
+          INSERT INTO t2 SELECT words FROM t1;
+          SELECT level, group_concat(idx, ' ') FROM t2_segdir GROUP BY level;
+        }
+      } {0 {0 1 2 3 4 5}}
+
+      if {[code1 { set ::sqlite_libversion }] >=3071200 
+       && [code2 { set ::sqlite_libversion }] >=3071200 
+      } {
+        if {[code1 { set ::sqlite_libversion }]<3120000} {
+          set res {0 {0 1} 1 0}
+        } else {
+          set res {1 0}
+        }
+
+        do_test backcompat-3.9 {
+          sql1 { INSERT INTO t2(t2) VALUES('merge=100,4'); }
+          sql2 { INSERT INTO t2(t2) VALUES('merge=100,4'); }
+          sql1 { INSERT INTO t2(t2) VALUES('merge=100,4'); }
+          sql2 { INSERT INTO t2(t2) VALUES('merge=2500,4'); }
+          sql2 {
+            SELECT level, group_concat(idx, ' ') FROM t2_segdir GROUP BY level;
+          }
+        } $res
+
+        do_test backcompat-3.10 {
+          sql1 { INSERT INTO t2(t2) VALUES('integrity-check') }
+          sql2 { INSERT INTO t2(t2) VALUES('integrity-check') }
+        } {}
+      }
+    }
+  }
+}
+
+#-------------------------------------------------------------------------
+# Test that Rtree tables may be read/written by different versions of 
+# SQLite. 
+#
+ifcapable rtree {
+  set contents {
+    CREATE VIRTUAL TABLE t1 USING rtree(id, x1, x2, y1, y2);
+  }
+  foreach {id x1 x2 y1 y2} {
+    1    -47.64 43.87    33.86 34.42        2    -21.51 17.32    2.05 31.04
+    3    -43.67 -38.33    -19.79 3.43       4    32.41 35.16    9.12 19.82
+    5    33.28 34.87    14.78 28.26         6    49.31 116.59    -9.87 75.09
+    7    -14.93 34.51    -17.64 64.09       8    -43.05 23.43    -1.19 69.44
+    9    44.79 133.56    28.09 80.30        10    -2.66 81.47    -41.38 -10.46
+    11    -42.89 -3.54    15.76 71.63       12    -3.50 84.96    -11.64 64.95
+    13    -45.69 26.25    11.14 55.06       14    -44.09 11.23    17.52 44.45
+    15    36.23 133.49    -19.38 53.67      16    -17.89 81.54    14.64 50.61
+    17    -41.97 -24.04    -39.43 28.95     18    -5.85 7.76    -6.38 47.02
+    19    18.82 27.10    42.82 100.09       20    39.17 113.45    26.14 73.47
+    21    22.31 103.17    49.92 106.05      22    -43.06 40.38    -1.75 76.08
+    23    2.43 57.27    -14.19 -3.83        24    -47.57 -4.35    8.93 100.06
+    25    -37.47 49.14    -29.11 8.81       26    -7.86 75.72    49.34 107.42
+    27    1.53 45.49    20.36 49.74         28    -48.48 32.54    28.81 54.45
+    29    2.67 39.77    -4.05 13.67         30    4.11 62.88    -47.44 -5.72
+    31    -21.47 51.75    37.25 116.09      32    45.59 111.37    -6.43 43.64
+    33    35.23 48.29    23.54 113.33       34    16.61 68.35    -14.69 65.97
+    35    13.98 16.60    48.66 102.87       36    19.74 23.84    31.15 77.27
+    37    -27.61 24.43    7.96 94.91        38    -34.77 12.05    -22.60 -6.29
+    39    -25.83 8.71    -13.48 -12.53      40    -17.11 -1.01    18.06 67.89
+    41    14.13 71.72    -3.78 39.25        42    23.75 76.00    -16.30 8.23
+    43    -39.15 28.63    38.12 125.88      44    48.62 86.09    36.49 102.95
+    45    -31.39 -21.98    2.52 89.78       46    5.65 56.04    15.94 89.10
+    47    18.28 95.81    46.46 143.08       48    30.93 102.82    -20.08 37.36
+    49    -20.78 -3.48    -5.58 35.46       50    49.85 90.58    -24.48 46.29
+  } {
+  if {$x1 >= $x2 || $y1 >= $y2} { error "$x1 $x2 $y1 $y2" }
+    append contents "INSERT INTO t1 VALUES($id, $x1, $x2, $y1, $y2);"
+  }
+  set queries {
+    1    "SELECT id FROM t1 WHERE x1>10 AND x2<44"
+    2    "SELECT id FROM t1 WHERE y1<100"
+    3    "SELECT id FROM t1 WHERE y1<100 AND x1>0"
+    4    "SELECT id FROM t1 WHERE y1>10 AND x1>0 AND x2<50 AND y2<550"
+  }
+  do_allbackcompat_test {
+    if {[code1 {set ::sqlite_options(fts3)}]
+     && [code2 {set ::sqlite_options(fts3)}]
+    } {
+  
+      do_test backcompat-4.1 { sql1 $contents } {}
+  
+      foreach {n q} $::queries {
+        do_test backcompat-4.2.$n [list sql1 $q] [sql2 $q]
+      }
+  
+      do_test backcompat-4.3 { sql1 {
+        INSERT INTO t1 SELECT id+100, x1+10.0, x2+10.0, y1-10.0, y2-10.0 FROM t1;
+      } } {}
+  
+      foreach {n q} $::queries {
+        do_test backcompat-4.4.$n [list sql1 $q] [sql2 $q]
+      }
+  
+      do_test backcompat-4.5 { sql2 {
+        INSERT INTO t1 SELECT id+200, x1+20.0, x2+20.0, y1-20.0, y2-20.0 FROM t1;
+      } } {}
+  
+      foreach {n q} $::queries {
+        do_test backcompat-4.6.$n [list sql1 $q] [sql2 $q]
+      }
+  
+    }
+  }
+}
+
+finish_test
diff --git a/test/backup.test b/test/backup.test
new file mode 100644
index 0000000000000000000000000000000000000000..ad1a383a087aae9d64a38be7690f06655547ce60
--- /dev/null
+++ b/test/backup.test
@@ -0,0 +1,1004 @@
+# 2009 January 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the sqlite3_backup_XXX API.
+#
+# $Id: backup.test,v 1.11 2009/06/05 17:09:12 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_not_use_codec
+
+#---------------------------------------------------------------------
+# Test organization:
+#
+# backup-1.*: Warm-body tests.
+#
+# backup-2.*: Test backup under various conditions. To and from in-memory
+#             databases. To and from empty/populated databases. etc.
+#
+# backup-3.*: Verify that the locking-page (pending byte page) is handled.
+#
+# backup-4.*: Test various error conditions.
+#
+# backup-5.*: Test the source database being modified during a backup.
+#
+# backup-6.*: Test the backup_remaining() and backup_pagecount() APIs.
+#
+# backup-7.*: Test SQLITE_BUSY and SQLITE_LOCKED errors.
+#
+# backup-8.*: Test multiple simultaneous backup operations.
+#
+# backup-9.*: Test that passing a negative argument to backup_step() is
+#             interpreted as "copy the whole file".
+# 
+# backup-10.*: Test writing the source database mid backup.
+#
+
+proc data_checksum {db file} { $db one "SELECT md5sum(a, b) FROM ${file}.t1" }
+proc test_contents {name db1 file1 db2 file2} {
+  $db2 eval {select * from sqlite_master}
+  $db1 eval {select * from sqlite_master}
+  set checksum [data_checksum $db2 $file2]
+  uplevel [list do_test $name [list data_checksum $db1 $file1] $checksum]
+}
+
+do_test backup-1.1 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t1(a, b);
+    CREATE INDEX i1 ON t1(a, b);
+    INSERT INTO t1 VALUES(1, randstr(1000,1000));
+    INSERT INTO t1 VALUES(2, randstr(1000,1000));
+    INSERT INTO t1 VALUES(3, randstr(1000,1000));
+    INSERT INTO t1 VALUES(4, randstr(1000,1000));
+    INSERT INTO t1 VALUES(5, randstr(1000,1000));
+    COMMIT;
+  }
+} {}
+
+# Sanity check to verify that the [test_contents] proc works.
+#
+test_contents backup-1.2 db main db main
+
+# Check that it is possible to create and finish backup operations.
+#
+do_test backup-1.3.1 {
+  delete_file test2.db
+  sqlite3 db2 test2.db
+  sqlite3_backup B db2 main db main
+} {B}
+do_test backup-1.3.2 {
+  B finish
+} {SQLITE_OK}
+do_test backup-1.3.3 {
+  info commands B
+} {}
+
+# Simplest backup operation. Backup test.db to test2.db. test2.db is 
+# initially empty. test.db uses the default page size.
+# 
+do_test backup-1.4.1 {
+  sqlite3_backup B db2 main db main
+} {B}
+do_test backup-1.4.2 {
+  B step 200
+} {SQLITE_DONE}
+do_test backup-1.4.3 {
+  B finish
+} {SQLITE_OK}
+do_test backup-1.4.4 {
+  info commands B
+} {}
+test_contents backup-1.4.5 db2 main db main
+db close
+db2 close
+#
+# End of backup-1.* tests.
+#---------------------------------------------------------------------
+
+
+#---------------------------------------------------------------------
+# The following tests, backup-2.*, are based on the following procedure:
+#
+#   1) Populate the source database.
+#   2) Populate the destination database.
+#   3) Run the backup to completion. (backup-2.*.1)
+#   4) Integrity check the destination db. (backup-2.*.2)
+#   5) Check that the contents of the destination db is the same as that
+#      of the source db. (backup-2.*.3)
+# 
+# The test is run with all possible combinations of the following
+# input parameters, except that if the destination is an in-memory
+# database, the only page size tested is 1024 bytes (the same as the
+# source page-size).
+#
+#   * Source database is an in-memory database, OR
+#   * Source database is a file-backed database.
+#
+#   * Target database is an in-memory database, OR
+#   * Target database is a file-backed database.
+#
+#   * Destination database is a main file, OR
+#   * Destination database is an attached file, OR
+#   * Destination database is a temp database.
+#
+#   * Target database is empty (zero bytes), OR
+#   * Target database is larger than the source, OR
+#   * Target database is smaller than the source.
+#
+#   * Target database page-size is the same as the source, OR
+#   * Target database page-size is larger than the source, OR
+#   * Target database page-size is smaller than the source.
+#
+#   * Each call to step copies a single page, OR
+#   * A single call to step copies the entire source database.
+#
+set iTest 1
+foreach zSrcFile {test.db :memory:} {
+foreach zDestFile {test2.db :memory:} {
+foreach zOpenScript [list {
+  sqlite3 db $zSrcFile
+  sqlite3 db2 $zSrcFile
+  db2 eval "ATTACH '$zDestFile' AS bak"
+  set db_dest db2
+  set file_dest bak
+} {
+  sqlite3 db $zSrcFile
+  sqlite3 db2 $zDestFile
+  set db_dest db2
+  set file_dest main
+} {
+  sqlite3 db $zSrcFile
+  sqlite3 db2 $zDestFile
+  set db_dest db2
+  set file_dest temp
+}] {
+foreach rows_dest {0 3 10} {
+foreach pgsz_dest {512 1024 2048 4096} {
+foreach nPagePerStep {1 200} {
+
+  # Open the databases.
+  catch { delete_file test.db }
+  catch { delete_file test2.db }
+  eval $zOpenScript
+
+  # Set to true if copying to an in-memory destination. Copying to an 
+  # in-memory destination is only possible if the initial destination
+  # page size is the same as the source page size (in this case 1024 bytes).
+  #
+  set isMemDest [expr { $zDestFile eq ":memory:" || $file_dest eq "temp" }]
+
+  if 0 {
+    puts -nonewline "Test $iTest: src=$zSrcFile dest=$zDestFile"
+    puts -nonewline " (as $db_dest.$file_dest)"
+    puts -nonewline " rows_dest=$rows_dest pgsz_dest=$pgsz_dest"
+    puts ""
+  }
+
+  if { $isMemDest==0 || $pgsz_dest==1024 || $rows_dest==0 } {
+
+    # Set up the content of the source database.
+    execsql {
+      PRAGMA page_size = 1024;
+      BEGIN;
+      CREATE TABLE t1(a, b);
+      CREATE INDEX i1 ON t1(a, b);
+      INSERT INTO t1 VALUES(1, randstr(1000,1000));
+      INSERT INTO t1 VALUES(2, randstr(1000,1000));
+      INSERT INTO t1 VALUES(3, randstr(1000,1000));
+      INSERT INTO t1 VALUES(4, randstr(1000,1000));
+      INSERT INTO t1 VALUES(5, randstr(1000,1000));
+      COMMIT;
+    }
+    
+    
+
+    # Set up the content of the target database.
+    execsql "PRAGMA ${file_dest}.page_size = ${pgsz_dest}" $db_dest
+    if {$rows_dest != 0} {
+      execsql "
+        BEGIN; 
+        CREATE TABLE ${file_dest}.t1(a, b);
+        CREATE INDEX ${file_dest}.i1 ON t1(a, b);
+      " $db_dest
+      for {set ii 0} {$ii < $rows_dest} {incr ii} {
+        execsql "
+          INSERT INTO ${file_dest}.t1 VALUES(1, randstr(1000,1000))
+        " $db_dest
+      }
+      execsql COMMIT $db_dest
+    }
+  
+    # Backup the source database.
+    do_test backup-2.$iTest.1 {
+      sqlite3_backup B $db_dest $file_dest db main
+      while {[B step $nPagePerStep]=="SQLITE_OK"} {}
+      B finish
+    } {SQLITE_OK}
+    
+    # Run integrity check on the backup.
+    do_test backup-2.$iTest.2 {
+      execsql "PRAGMA ${file_dest}.integrity_check" $db_dest
+    } {ok}
+  
+    test_contents backup-2.$iTest.3 db main $db_dest $file_dest
+  
+  }
+
+  db close
+  catch {db2 close}
+  incr iTest
+
+} } } } } }
+#
+# End of backup-2.* tests.
+#---------------------------------------------------------------------
+
+#---------------------------------------------------------------------
+# These tests, backup-3.*, ensure that nothing goes wrong if either 
+# the source or destination database are large enough to include the
+# the locking-page (the page that contains the range of bytes that
+# the locks are applied to). These tests assume that the pending
+# byte is at offset 0x00010000 (64KB offset), as set by tester.tcl, 
+# not at the 1GB offset as it usually is.
+#
+# The test procedure is as follows (same procedure as used for 
+# the backup-2.* tests):
+#
+#   1) Populate the source database.
+#   2) Populate the destination database.
+#   3) Run the backup to completion. (backup-3.*.1)
+#   4) Integrity check the destination db. (backup-3.*.2)
+#   5) Check that the contents of the destination db is the same as that
+#      of the source db. (backup-3.*.3)
+#
+# The test procedure is run with the following parameters varied: 
+#
+#   * Source database includes pending-byte page.
+#   * Source database does not include pending-byte page.
+#
+#   * Target database includes pending-byte page.
+#   * Target database does not include pending-byte page.
+#
+#   * Target database page-size is the same as the source, OR
+#   * Target database page-size is larger than the source, OR
+#   * Target database page-size is smaller than the source.
+#
+set iTest 1
+foreach nSrcPg {10 64 65 66 100} {
+foreach nDestRow {10 100} {
+foreach nDestPgsz {512 1024 2048 4096} {
+
+  catch { delete_file test.db }
+  catch { delete_file test2.db }
+  sqlite3 db test.db
+  sqlite3 db2 test2.db
+
+  # Set up the content of the two databases.
+  #
+  execsql { PRAGMA page_size = 1024 }
+  execsql "PRAGMA page_size = $nDestPgsz" db2
+  foreach db {db db2} {
+    execsql {
+      BEGIN; 
+      CREATE TABLE t1(a, b);
+      CREATE INDEX i1 ON t1(a, b);
+      COMMIT;
+    } $db
+  }
+  while {[file size test.db]/1024 < $nSrcPg} {
+    execsql { INSERT INTO t1 VALUES($ii, randstr(200,200)) }
+  }
+
+  for {set ii 0} {$ii < $nDestRow} {incr ii} {
+    execsql { INSERT INTO t1 VALUES($ii, randstr(1000,1000)) } db2
+  }
+
+  # Backup the source database.
+  do_test backup-3.$iTest.1 {
+    sqlite3_backup B db main db2 main
+    while {[B step 10]=="SQLITE_OK"} {}
+    B finish
+  } {SQLITE_OK}
+    
+  # Run integrity check on the backup.
+  do_test backup-3.$iTest.2 {
+    execsql "PRAGMA integrity_check" db2
+  } {ok}
+  
+  test_contents backup-3.$iTest.3 db main db2 main
+
+  db close
+  db2 close
+  incr iTest
+}
+}
+}
+
+#--------------------------------------------------------------------
+do_test backup-3.$iTest.1 {
+  catch { forcedelete test.db }
+  catch { forcedelete test2.db }
+  sqlite3 db test.db
+  set iTab 1
+
+  db eval { PRAGMA page_size = 512 }
+  while {[file size test.db] <= $::sqlite_pending_byte} {
+    db eval "CREATE TABLE t${iTab}(a, b, c)"
+    incr iTab
+  }
+
+  sqlite3 db2 test2.db
+  db2 eval { PRAGMA page_size = 4096 }
+  while {[file size test2.db] < $::sqlite_pending_byte} {
+    db2 eval "CREATE TABLE t${iTab}(a, b, c)"
+    incr iTab
+  }
+
+  sqlite3_backup B db2 main db main
+  B step -1
+} {SQLITE_DONE}
+
+do_test backup-3.$iTest.2 {
+  B finish
+} {SQLITE_OK}
+
+#
+# End of backup-3.* tests.
+#---------------------------------------------------------------------
+
+
+#---------------------------------------------------------------------
+# The following tests, backup-4.*, test various error conditions:
+# 
+# backup-4.1.*: Test invalid database names.
+#
+# backup-4.2.*: Test that the source database cannot be detached while 
+#               a backup is in progress.
+#
+# backup-4.3.*: Test that the source database handle cannot be closed
+#               while a backup is in progress.
+#
+# backup-4.4.*: Test an attempt to specify the same handle for the
+#               source and destination databases.
+#
+# backup-4.5.*: Test that an in-memory destination with a different
+#               page-size to the source database is an error.
+#
+sqlite3 db test.db
+sqlite3 db2 test2.db
+
+do_test backup-4.1.1 {
+  catch { sqlite3_backup B db aux db2 main }
+} {1}
+do_test backup-4.1.2 {
+  sqlite3_errmsg db
+} {unknown database aux}
+do_test backup-4.1.3 {
+  catch { sqlite3_backup B db main db2 aux }
+} {1}
+do_test backup-4.1.4 {
+  sqlite3_errmsg db
+} {unknown database aux}
+
+do_test backup-4.2.1 {
+  catch { forcedelete test3.db }
+  catch { forcedelete test4.db }
+  execsql { 
+    ATTACH 'test3.db' AS aux1;
+    CREATE TABLE aux1.t1(a, b);
+  }
+  execsql { 
+    ATTACH 'test4.db' AS aux2;
+    CREATE TABLE aux2.t2(a, b);
+  } db2
+  sqlite3_backup B db aux1 db2 aux2
+} {B}
+do_test backup-4.2.2 {
+  catchsql { DETACH aux2 } db2
+} {1 {database aux2 is locked}}
+do_test backup-4.2.3 {
+  B step 50
+} {SQLITE_DONE}
+do_test backup-4.2.4 {
+  B finish
+} {SQLITE_OK}
+
+do_test backup-4.3.1 {
+  sqlite3_backup B db aux1 db2 aux2
+} {B}
+do_test backup-4.3.2 {
+  db2 cache flush
+  sqlite3_close db2
+} {SQLITE_BUSY}
+do_test backup-4.3.3 {
+  sqlite3_errmsg db2
+} {unable to close due to unfinalized statements or unfinished backups}
+do_test backup-4.3.4 {
+  B step 50
+} {SQLITE_DONE}
+do_test backup-4.3.5 {
+  B finish
+} {SQLITE_OK}
+
+do_test backup-4.4.1 {
+  set rc [catch {sqlite3_backup B db main db aux1}]
+  list $rc [sqlite3_errcode db] [sqlite3_errmsg db]
+} {1 SQLITE_ERROR {source and destination must be distinct}}
+db close
+db2 close
+
+do_test backup-4.5.1 {
+  catch { forcedelete test.db }
+  sqlite3 db test.db
+  sqlite3 db2 :memory:
+  execsql {
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, 2);
+  }
+  execsql {
+    PRAGMA page_size = 4096;
+    CREATE TABLE t2(a, b);
+    INSERT INTO t2 VALUES(3, 4);
+  } db2
+  sqlite3_backup B db2 main db main
+} {B}
+do_test backup-4.5.2 {
+  B step 5000
+} {SQLITE_READONLY}
+do_test backup-4.5.3 {
+  B finish
+} {SQLITE_READONLY}
+
+db close
+db2 close
+#
+# End of backup-4.* tests.
+#---------------------------------------------------------------------
+
+#---------------------------------------------------------------------
+# The following tests, backup-5.*, test that the backup works properly
+# when the source database is modified during the backup. Test cases
+# are organized as follows:
+#
+# backup-5.x.1.*: Nothing special. Modify the database mid-backup.
+#
+# backup-5.x.2.*: Modify the database mid-backup so that one or more
+#                 pages are written out due to cache stress. Then 
+#                 rollback the transaction.
+#
+# backup-5.x.3.*: Database is vacuumed.
+#
+# backup-5.x.4.*: Database is vacuumed and the page-size modified.
+#
+# backup-5.x.5.*: Database is shrunk via incr-vacuum.
+#
+# Each test is run three times, in the following configurations:
+#
+#   1) Backing up file-to-file. The writer writes via an external pager.
+#   2) Backing up file-to-file. The writer writes via the same pager as
+#      is used by the backup operation.
+#   3) Backing up memory-to-file. 
+#
+set iTest 0
+forcedelete bak.db-wal
+foreach {writer file} {db test.db db3 test.db db :memory:} {
+  incr iTest
+  catch { delete_file bak.db }
+  sqlite3 db2 bak.db
+  catch { delete_file $file }
+  sqlite3 db $file
+  sqlite3 db3 $file
+
+  do_test backup-5.$iTest.1.1 {
+    execsql {
+      BEGIN;
+      CREATE TABLE t1(a, b);
+      CREATE INDEX i1 ON t1(a, b);
+      INSERT INTO t1 VALUES(1, randstr(1000,1000));
+      INSERT INTO t1 VALUES(2, randstr(1000,1000));
+      INSERT INTO t1 VALUES(3, randstr(1000,1000));
+      INSERT INTO t1 VALUES(4, randstr(1000,1000));
+      INSERT INTO t1 VALUES(5, randstr(1000,1000));
+      COMMIT;
+    }
+    expr {[execsql {PRAGMA page_count}] > 10}
+  } {1}
+  do_test backup-5.$iTest.1.2 {
+    sqlite3_backup B db2 main db main
+    B step 5
+  } {SQLITE_OK}
+  do_test backup-5.$iTest.1.3 {
+    execsql { UPDATE t1 SET a = a + 1 } $writer
+    B step 50
+  } {SQLITE_DONE}
+  do_test backup-5.$iTest.1.4 {
+    B finish
+  } {SQLITE_OK} 
+  integrity_check backup-5.$iTest.1.5 db2
+  test_contents backup-5.$iTest.1.6 db main db2 main
+
+  do_test backup-5.$iTest.2.1 {
+    execsql {
+      PRAGMA cache_size = 10;
+      BEGIN;
+      INSERT INTO t1 SELECT '', randstr(1000,1000) FROM t1;
+      INSERT INTO t1 SELECT '', randstr(1000,1000) FROM t1;
+      INSERT INTO t1 SELECT '', randstr(1000,1000) FROM t1;
+      INSERT INTO t1 SELECT '', randstr(1000,1000) FROM t1;
+      COMMIT;
+    }
+  } {}
+  do_test backup-5.$iTest.2.2 {
+    sqlite3_backup B db2 main db main
+    B step 50
+  } {SQLITE_OK}
+  do_test backup-5.$iTest.2.3 {
+    execsql { 
+      BEGIN;
+      UPDATE t1 SET a = a + 1;
+      ROLLBACK;
+    } $writer
+    B step 5000
+  } {SQLITE_DONE}
+  do_test backup-5.$iTest.2.4 {
+    B finish
+  } {SQLITE_OK} 
+  integrity_check backup-5.$iTest.2.5 db2
+  test_contents backup-5.$iTest.2.6 db main db2 main
+
+  do_test backup-5.$iTest.3.1 {
+    execsql { UPDATE t1 SET b = randstr(1000,1000) }
+  } {}
+  do_test backup-5.$iTest.3.2 {
+    sqlite3_backup B db2 main db main
+    B step 50
+  } {SQLITE_OK}
+  do_test backup-5.$iTest.3.3 {
+    execsql { VACUUM } $writer
+    B step 5000
+  } {SQLITE_DONE}
+  do_test backup-5.$iTest.3.4 {
+    B finish
+  } {SQLITE_OK} 
+  integrity_check backup-5.$iTest.3.5 db2
+  test_contents backup-5.$iTest.3.6 db main db2 main
+
+  do_test backup-5.$iTest.4.1 {
+    execsql { UPDATE t1 SET b = randstr(1000,1000) }
+  } {}
+  do_test backup-5.$iTest.4.2 {
+    sqlite3_backup B db2 main db main
+    B step 50
+  } {SQLITE_OK}
+  do_test backup-5.$iTest.4.3 {
+    execsql { 
+      PRAGMA page_size = 2048;
+      VACUUM;
+    } $writer
+    B step 5000
+  } {SQLITE_DONE}
+  do_test backup-5.$iTest.4.4 {
+    B finish
+  } {SQLITE_OK} 
+  integrity_check backup-5.$iTest.4.5 db2
+  test_contents backup-5.$iTest.4.6 db main db2 main
+
+  catch {db close}
+  catch {db2 close}
+  catch {db3 close}
+  catch { delete_file bak.db }
+  sqlite3 db2 bak.db
+  catch { delete_file $file }
+  sqlite3 db $file
+  sqlite3 db3 $file
+  do_test backup-5.$iTest.5.1 {
+    execsql {
+      PRAGMA auto_vacuum = incremental;
+      BEGIN;
+      CREATE TABLE t1(a, b);
+      CREATE INDEX i1 ON t1(a, b);
+      INSERT INTO t1 VALUES(1, randstr(1000,1000));
+      INSERT INTO t1 VALUES(2, randstr(1000,1000));
+      INSERT INTO t1 VALUES(3, randstr(1000,1000));
+      INSERT INTO t1 VALUES(4, randstr(1000,1000));
+      INSERT INTO t1 VALUES(5, randstr(1000,1000));
+      COMMIT;
+    }
+  } {}
+  do_test backup-5.$iTest.5.2 {
+    sqlite3_backup B db2 main db main
+    B step 8
+  } {SQLITE_OK}
+  do_test backup-5.$iTest.5.3 {
+    execsql { 
+      DELETE FROM t1;
+      PRAGMA incremental_vacuum;
+    } $writer
+    B step 50
+  } {SQLITE_DONE}
+  do_test backup-5.$iTest.5.4 {
+    B finish
+  } {SQLITE_OK} 
+  integrity_check backup-5.$iTest.5.5 db2
+  test_contents backup-5.$iTest.5.6 db main db2 main
+  catch {db close}
+  catch {db2 close}
+  catch {db3 close}
+}
+#
+# End of backup-5.* tests.
+#---------------------------------------------------------------------
+
+#---------------------------------------------------------------------
+# Test the sqlite3_backup_remaining() and backup_pagecount() APIs.
+#
+do_test backup-6.1 {
+  catch { forcedelete test.db }
+  catch { forcedelete test2.db }
+  sqlite3 db test.db
+  sqlite3 db2 test2.db
+  execsql {
+    BEGIN;
+    CREATE TABLE t1(a, b);
+    CREATE INDEX i1 ON t1(a, b);
+    INSERT INTO t1 VALUES(1, randstr(1000,1000));
+    INSERT INTO t1 VALUES(2, randstr(1000,1000));
+    INSERT INTO t1 VALUES(3, randstr(1000,1000));
+    INSERT INTO t1 VALUES(4, randstr(1000,1000));
+    INSERT INTO t1 VALUES(5, randstr(1000,1000));
+    COMMIT;
+  }
+} {}
+do_test backup-6.2 {
+  set nTotal [expr {[file size test.db]/1024}]
+  sqlite3_backup B db2 main db main
+  B step 1
+} {SQLITE_OK}
+do_test backup-6.3 {
+  B pagecount
+} $nTotal
+do_test backup-6.4 {
+  B remaining
+} [expr $nTotal-1]
+do_test backup-6.5 {
+  B step 5
+  list [B remaining] [B pagecount]
+} [list [expr $nTotal-6] $nTotal]
+do_test backup-6.6 {
+  execsql { CREATE TABLE t2(a PRIMARY KEY, b) }
+  B step 1
+  list [B remaining] [B pagecount]
+} [list [expr $nTotal-5] [expr $nTotal+2]]
+
+do_test backup-6.X {
+  B finish
+} {SQLITE_OK}
+
+catch {db close}
+catch {db2 close}
+
+#---------------------------------------------------------------------
+# Test cases backup-7.* test that SQLITE_BUSY and SQLITE_LOCKED errors
+# are returned correctly:
+#
+# backup-7.1.*: Source database is externally locked (return SQLITE_BUSY).
+#
+# backup-7.2.*: Attempt to step the backup process while a 
+#               write-transaction is underway on the source pager (return
+#               SQLITE_LOCKED).
+#
+# backup-7.3.*: Destination database is externally locked (return SQLITE_BUSY).
+#
+do_test backup-7.0 {
+  catch { forcedelete test.db }
+  catch { forcedelete test2.db }
+  sqlite3 db2 test2.db
+  sqlite3 db test.db
+  execsql {
+    CREATE TABLE t1(a, b);
+    CREATE INDEX i1 ON t1(a, b);
+    INSERT INTO t1 VALUES(1, randstr(1000,1000));
+    INSERT INTO t1 SELECT a+ 1, randstr(1000,1000) FROM t1;
+    INSERT INTO t1 SELECT a+ 2, randstr(1000,1000) FROM t1;
+    INSERT INTO t1 SELECT a+ 4, randstr(1000,1000) FROM t1;
+    INSERT INTO t1 SELECT a+ 8, randstr(1000,1000) FROM t1;
+    INSERT INTO t1 SELECT a+16, randstr(1000,1000) FROM t1;
+    INSERT INTO t1 SELECT a+32, randstr(1000,1000) FROM t1;
+    INSERT INTO t1 SELECT a+64, randstr(1000,1000) FROM t1;
+  }
+} {}
+
+do_test backup-7.1.1 {
+  sqlite3_backup B db2 main db main
+  B step 5
+} {SQLITE_OK}
+do_test backup-7.1.2 {
+  sqlite3 db3 test.db
+  execsql { BEGIN EXCLUSIVE } db3
+  B step 5
+} {SQLITE_BUSY}
+do_test backup-7.1.3 {
+  execsql { ROLLBACK } db3
+  B step 5
+} {SQLITE_OK}
+do_test backup-7.2.1 {
+  execsql { 
+    BEGIN;
+    INSERT INTO t1 VALUES(1, 4);
+  }
+} {}
+do_test backup-7.2.2 {
+  B step 5000
+} {SQLITE_BUSY}
+do_test backup-7.2.3 {
+  execsql { ROLLBACK }
+  B step 5000
+} {SQLITE_DONE}
+do_test backup-7.2.4 {
+  B finish
+} {SQLITE_OK}
+test_contents backup-7.2.5 db main db2 main
+integrity_check backup-7.3.6 db2
+
+do_test backup-7.3.1 {
+  db2 close
+  db3 close
+  forcedelete test2.db
+  sqlite3 db2 test2.db
+  sqlite3 db3 test2.db
+
+  sqlite3_backup B db2 main db main
+  execsql { BEGIN ; CREATE TABLE t2(a, b); } db3
+
+  B step 5
+} {SQLITE_BUSY}
+do_test backup-7.3.2 {
+  execsql { COMMIT } db3
+  B step 5000
+} {SQLITE_DONE}
+do_test backup-7.3.3 {
+  B finish
+} {SQLITE_OK}
+test_contents backup-7.3.4 db main db2 main
+integrity_check backup-7.3.5 db2
+catch { db2 close }
+catch { db3 close }
+
+#-----------------------------------------------------------------------
+# The following tests, backup-8.*, test attaching multiple backup
+# processes to the same source database. Also, reading from the source
+# database while a read transaction is active.
+#
+# These tests reuse the database "test.db" left over from backup-7.*.
+#
+do_test backup-8.1 {
+  catch { forcedelete test2.db }
+  catch { forcedelete test3.db }
+  sqlite3 db2 test2.db
+  sqlite3 db3 test3.db
+
+  sqlite3_backup B2 db2 main db main
+  sqlite3_backup B3 db3 main db main
+  list [B2 finish] [B3 finish]
+} {SQLITE_OK SQLITE_OK}
+do_test backup-8.2 {
+  sqlite3_backup B3 db3 main db main
+  sqlite3_backup B2 db2 main db main
+  list [B2 finish] [B3 finish]
+} {SQLITE_OK SQLITE_OK}
+do_test backup-8.3 {
+  sqlite3_backup B2 db2 main db main
+  sqlite3_backup B3 db3 main db main
+  B2 step 5
+} {SQLITE_OK}
+do_test backup-8.4 {
+  execsql {
+    BEGIN;
+    SELECT * FROM sqlite_master;
+  }
+  B3 step 5
+} {SQLITE_OK}
+do_test backup-8.5 {
+  list [B3 step 5000] [B3 finish]
+} {SQLITE_DONE SQLITE_OK}
+do_test backup-8.6 {
+  list [B2 step 5000] [B2 finish]
+} {SQLITE_DONE SQLITE_OK}
+test_contents backup-8.7 db main db2 main
+test_contents backup-8.8 db main db3 main
+do_test backup-8.9 {
+  execsql { PRAGMA lock_status }
+} {main shared temp closed}
+do_test backup-8.10 {
+  execsql COMMIT
+} {}
+catch { db2 close }
+catch { db3 close }
+
+#-----------------------------------------------------------------------
+# The following tests, backup-9.*, test that:
+# 
+#   * Passing 0 as an argument to sqlite3_backup_step() means no pages
+#     are backed up (backup-9.1.*), and 
+#   * Passing a negative value as an argument to sqlite3_backup_step() means 
+#     all pages are backed up (backup-9.2.*).
+#
+# These tests reuse the database "test.db" left over from backup-7.*.
+# 
+do_test backup-9.1.1 {
+  sqlite3 db2 test2.db
+  sqlite3_backup B db2 main db main
+  B step 1
+} {SQLITE_OK}
+do_test backup-9.1.2 {
+  set nRemaining [B remaining]
+  expr {$nRemaining>100}
+} {1}
+do_test backup-9.1.3 {
+  B step 0
+} {SQLITE_OK}
+do_test backup-9.1.4 {
+  B remaining
+} $nRemaining
+
+do_test backup-9.2.1 {
+  B step -1
+} {SQLITE_DONE}
+do_test backup-9.2.2 {
+  B remaining
+} {0}
+do_test backup-9.2.3 {
+  B finish
+} {SQLITE_OK}
+catch {db2 close}
+
+ifcapable memorymanage {
+  db close
+  forcedelete test.db
+  forcedelete bak.db
+
+  sqlite3 db test.db
+  sqlite3 db2 test.db
+  sqlite3 db3 bak.db
+
+  do_test backup-10.1.1 {
+    execsql {
+      BEGIN;
+      CREATE TABLE t1(a, b);
+      INSERT INTO t1 VALUES(1, randstr(1000,1000));
+      INSERT INTO t1 VALUES(2, randstr(1000,1000));
+      INSERT INTO t1 VALUES(3, randstr(1000,1000));
+      INSERT INTO t1 VALUES(4, randstr(1000,1000));
+      INSERT INTO t1 VALUES(5, randstr(1000,1000));
+      CREATE INDEX i1 ON t1(a, b);
+      COMMIT;
+    }
+  } {}
+  do_test backup-10.1.2 {
+    sqlite3_backup B db3 main db2 main
+    B step 5
+  } {SQLITE_OK}
+  do_test backup-10.1.3 {
+    execsql {
+      UPDATE t1 SET b = randstr(500,500);
+    }
+  } {}
+  sqlite3_release_memory [expr 1024*1024]
+  do_test backup-10.1.3 {
+    B step 50
+  } {SQLITE_DONE}
+  do_test backup-10.1.4 {
+    B finish
+  } {SQLITE_OK}
+  do_test backup-10.1.5 {
+    execsql { PRAGMA integrity_check } db3
+  } {ok}
+
+  db2 close
+  db3 close
+}
+
+
+#-----------------------------------------------------------------------
+# Test that if the database is written to via the same database handle being
+# used as the source by a backup operation:
+#
+#   10.1.*: If the db is in-memory, the backup is restarted.
+#   10.2.*: If the db is a file, the backup is not restarted.
+#
+db close
+forcedelete test.db test.db-journal
+foreach {tn file rc} {
+  1 test.db  SQLITE_DONE
+  2 :memory: SQLITE_OK
+} {
+  do_test backup-10.$tn.1 {
+    sqlite3 db $file
+    execsql { 
+      CREATE TABLE t1(a INTEGER PRIMARY KEY, b BLOB);
+      BEGIN;
+        INSERT INTO t1 VALUES(NULL, randomblob(200));
+        INSERT INTO t1 SELECT NULL, randomblob(200) FROM t1;
+        INSERT INTO t1 SELECT NULL, randomblob(200) FROM t1;
+        INSERT INTO t1 SELECT NULL, randomblob(200) FROM t1;
+        INSERT INTO t1 SELECT NULL, randomblob(200) FROM t1;
+        INSERT INTO t1 SELECT NULL, randomblob(200) FROM t1;
+        INSERT INTO t1 SELECT NULL, randomblob(200) FROM t1;
+        INSERT INTO t1 SELECT NULL, randomblob(200) FROM t1;
+        INSERT INTO t1 SELECT NULL, randomblob(200) FROM t1;
+      COMMIT;
+      SELECT count(*) FROM t1;
+    }
+  } {256}
+
+  do_test backup-10.$tn.2 {
+    set pgs [execsql {pragma page_count}]
+    expr {$pgs > 50 && $pgs < 75}
+  } {1}
+
+  do_test backup-10.$tn.3 {
+    forcedelete bak.db bak.db-journal
+    sqlite3 db2 bak.db
+    sqlite3_backup B db2 main db main
+    B step 50
+  } {SQLITE_OK}
+
+  do_test backup-10.$tn.4 {
+    execsql { UPDATE t1 SET b = randomblob(200) WHERE a IN (1, 250) }
+  } {}
+
+  do_test backup-10.$tn.5 {
+    B step 50
+  } $rc
+
+  do_test backup-10.$tn.6 {
+    B finish
+  } {SQLITE_OK}
+
+  db2 close
+}
+
+# 2021-01-31 https://sqlite.org/forum/forumpost/8b39fbf3e7
+#
+do_test backup-11.1 {
+  sqlite3 db1 :memory:
+  sqlite3 db2 :memory:
+  sqlite3_backup B db1 main db2 temp
+  B finish
+} {SQLITE_OK}
+db1 close
+db2 close
+
+#-------------------------------------------------------------------------
+do_test backup-12.1 {
+  sqlite3 db1 :memory:
+  sqlite3 db2 :memory:
+  db1 eval {
+    PRAGMA page_size = 8192;
+    CREATE TABLE t1(x);
+  }
+  db2 eval {
+    PRAGMA page_size = 1024;
+    CREATE TABLE t2(x);
+  }
+
+  sqlite3_backup B db1 main db2 temp
+  B step 100
+  B finish
+} {SQLITE_READONLY}
+
+
+
+
+finish_test
diff --git a/test/backup2.test b/test/backup2.test
new file mode 100644
index 0000000000000000000000000000000000000000..1822e2dbf0072cde4d0b221dc74a270caa2f007b
--- /dev/null
+++ b/test/backup2.test
@@ -0,0 +1,187 @@
+# 2009 February 4
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the "backup" and "restore" methods
+# of the TCL interface - methods which are based on the
+# sqlite3_backup_XXX API.
+#
+# $Id: backup2.test,v 1.4 2009/04/07 14:14:23 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_not_use_codec
+
+ifcapable !trigger||!view { finish_test ; return }
+
+# Fill a database with test data.
+#
+do_test backup2-1 {
+  db eval {
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(randstr(8000,8000));
+    INSERT INTO t1 VALUES(randstr(8000,8000));
+    INSERT INTO t1 VALUES(randstr(8000,8000));
+    INSERT INTO t1 VALUES(randstr(8000,8000));
+    INSERT INTO t1 VALUES(randstr(8000,8000));
+    CREATE VIEW v1 AS SELECT substr(x,10,10) FROM t1;
+    CREATE TABLE t2(a,b);
+    INSERT INTO t2 VALUES(1,2);
+    INSERT INTO t2 VALUES(2,4);
+    INSERT INTO t2 SELECT a+2, (a+2)*2 FROM t2;
+    INSERT INTO t2 SELECT a+4, (a+4)*2 FROM t2;
+    INSERT INTO t2 SELECT a+8, (a+8)*2 FROM t2;
+    INSERT INTO t2 SELECT a+16, (a+16)*2 FROM t2;
+    INSERT INTO t2 SELECT a+32, (a+32)*2 FROM t2;
+    INSERT INTO t2 SELECT a+64, (a+64)*2 FROM t2;
+    INSERT INTO t2 SELECT a+128, (a+128)*2 FROM t2;
+    CREATE INDEX t2i1 ON t2(a,b);
+    CREATE TRIGGER r1 AFTER INSERT ON t2 BEGIN
+      SELECT 'hello';
+    END;
+    ANALYZE;
+    PRAGMA integrity_check;
+  }
+} {ok}
+
+# Remember a check-sum on the database file.
+#
+unset -nocomplain cksum
+set cksum [dbcksum db main]
+
+# Make a backup of the test data.  Verify that the backup copy
+# is identical to the original.
+#
+do_test backup2-2 {
+  forcedelete bu1.db
+  db backup bu1.db
+  sqlite3 db2 bu1.db
+  dbcksum db2 main
+} $cksum
+
+# Delete the original.  Restore from backup.  Verify the content is
+# unchanged.
+#
+do_test backup2-3.1 {
+  db close
+  forcedelete test.db test.db-journal
+  sqlite3 db test.db
+  db2 eval {BEGIN EXCLUSIVE}
+  set rc [catch {db restore bu1.db} res]
+  lappend rc $res
+  db2 eval {ROLLBACK}
+  set rc
+} {1 {restore failed: source database busy}}
+do_test backup2-3.2 {
+  db close
+  forcedelete test.db test.db-journal
+  sqlite3 db test.db
+  db restore bu1.db
+  dbcksum db main
+} $cksum
+
+# Use alternative databases - other than "main".
+#
+do_test backup2-4 {
+  db restore temp bu1.db
+  dbcksum db temp
+} $cksum
+do_test backup2-5 {
+  db2 close
+  forcedelete bu1.db bu2.db
+  db backup temp bu2.db
+  sqlite3 db2 bu2.db
+  dbcksum db2 main
+} $cksum
+
+# Try to backup to a readonly file.
+#
+do_test backup2-6 {
+  db2 close
+  catch {file attributes bu2.db -permissions r--------}
+  catch {file attributes bu2.db -readonly 1}
+  set rc [catch {db backup temp bu2.db} res]
+  lappend rc $res
+} {1 {backup failed: attempt to write a readonly database}}
+
+# Try to backup to something that is not a database file.
+#
+do_test backup2-7 {
+  catch {file attributes bu2.db -readonly 0}
+  catch {file attributes bu2.db -permissions rw-------}
+  set out [open bu2.db w]
+  puts $out "This is not a valid database file"
+  close $out
+  set rc [catch {db backup temp bu2.db} res]
+  lappend rc $res
+} {1 {backup failed: file is not a database}}
+
+# Try to backup database that does not exist
+#
+do_test backup2-8 {
+  forcedelete bu1.db
+  set rc [catch {db backup aux1 bu1.db} res]
+  lappend rc $res
+} {1 {backup failed: unknown database aux1}}
+
+# Invalid syntax on the backup method
+#
+do_test backup2-9 {
+  set rc [catch {db backup} res]
+  lappend rc $res
+} {1 {wrong # args: should be "db backup ?DATABASE? FILENAME"}}
+
+# Try to restore from an unreadable file.
+#
+if {$tcl_platform(platform)=="windows"} {
+  set msg {cannot open source database: unable to open database file}
+} elseif {[string match *BSD $tcl_platform(os)]} {
+  set msg {}
+} else {
+  set msg {cannot open source database: disk I/O error}
+}
+do_test backup2-10 {
+  forcedelete bu3.db
+  file mkdir bu3.db
+  set rc [catch {db restore temp bu3.db} res]
+  if {[string match *BSD $tcl_platform(os)]} { set res "" }
+  list $rc $res
+} [list 1 $msg]
+
+# Try to restore from something that is not a database file.
+#
+do_test backup2-11 {
+  set rc [catch {db restore temp bu2.db} res]
+  lappend rc $res
+} {1 {restore failed: file is not a database}}
+
+# Try to restore a database that does not exist
+#
+do_test backup2-12 {
+  set rc [catch {db restore aux1 bu2.db} res]
+  lappend rc $res
+} {1 {restore failed: unknown database aux1}}
+do_test backup2-13 {
+  forcedelete bu4.db
+  set rc [catch {db restore bu4.db} res]
+  lappend rc $res
+} {1 {cannot open source database: unable to open database file}}
+
+# Invalid syntax on the restore method
+#
+do_test backup2-14 {
+  set rc [catch {db restore} res]
+  lappend rc $res
+} {1 {wrong # args: should be "db restore ?DATABASE? FILENAME"}}
+ 
+forcedelete bu1.db bu2.db bu3.db bu4.db
+
+finish_test
diff --git a/test/backup4.test b/test/backup4.test
new file mode 100644
index 0000000000000000000000000000000000000000..2756995c3adb85e438c9821fa231c5801d797e5c
--- /dev/null
+++ b/test/backup4.test
@@ -0,0 +1,108 @@
+# 2012 October 13
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# The tests in this file verify that if an empty database (zero bytes in 
+# size) is used as the source of a backup operation, the final destination
+# database is one page in size.
+#
+# The destination must consist of at least one page as truncating a 
+# database file to zero bytes is equivalent to resetting the database
+# schema cookie and change counter. Doing that could cause other clients
+# to become confused and continue using out-of-date cache data.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix backup4
+
+# The codec logic does not work for zero-length database files.  A database
+# file must contain at least one page in order to be recognized as an
+# encrypted database.
+do_not_use_codec
+
+#-------------------------------------------------------------------------
+# At one point this test was failing because [db] was using an out of
+# date schema in test case 1.2.
+#
+do_execsql_test 1.0 {
+  CREATE TABLE t1(x, y, UNIQUE(x, y));
+  INSERT INTO t1 VALUES('one', 'two');
+  SELECT * FROM t1 WHERE x='one';
+  PRAGMA integrity_check;
+} {one two ok}
+
+do_test 1.1 {
+  sqlite3 db1 :memory:
+  db1 backup test.db
+  sqlite3 db1 test.db
+  db1 eval {
+    CREATE TABLE t1(x, y);
+    INSERT INTO t1 VALUES('one', 'two');
+  }
+  db1 close
+} {}
+
+do_execsql_test 1.2 {
+  SELECT * FROM t1 WHERE x='one';
+  PRAGMA integrity_check;
+} {one two ok}
+
+db close
+forcedelete test.db
+forcedelete test.db2
+sqlite3 db test.db
+
+#-------------------------------------------------------------------------
+# Test that if the source is zero bytes, the destination database 
+# consists of a single page only.
+#
+do_execsql_test 2.1 {
+  CREATE TABLE t1(a, b);
+  CREATE INDEX i1 ON t1(a, b);
+}
+do_test 2.2 { file size test.db } [expr $AUTOVACUUM ? 4096 : 3072]
+
+do_test 2.3 {
+  sqlite3 db1 test.db2
+  db1 backup test.db
+  db1 close
+  file size test.db
+} {1024}
+
+do_test 2.4 { file size test.db2 } 0
+
+db close
+forcedelete test.db
+forcedelete test.db2
+sqlite3 db test.db
+
+#-------------------------------------------------------------------------
+# Test that if the destination has a page-size larger than the implicit
+# page-size of the source, the final destination database still consists
+# of a single page.
+#
+do_execsql_test 3.1 {
+  PRAGMA page_size = 4096;
+  CREATE TABLE t1(a, b);
+  CREATE INDEX i1 ON t1(a, b);
+}
+do_test 3.2 { file size test.db } [expr $AUTOVACUUM ? 16384 : 12288]
+
+do_test 3.3 {
+  sqlite3 db1 test.db2
+  db1 backup test.db
+  db1 close
+  file size test.db
+} {1024}
+
+do_test 3.4 { file size test.db2 } 0
+
+finish_test
diff --git a/test/backup5.test b/test/backup5.test
new file mode 100644
index 0000000000000000000000000000000000000000..c789adfa691678372b2654c2850409967765ed2a
--- /dev/null
+++ b/test/backup5.test
@@ -0,0 +1,65 @@
+# 2014 November 13
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix backup5
+
+forcedelete test2.db
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b);
+  CREATE TABLE t2(a, b);
+  INSERT INTO t2 VALUES(1, 1);
+  INSERT INTO t2 VALUES(2, 2);
+  INSERT INTO t2 VALUES(3, 3);
+}
+
+do_test 1.1 {
+  forcecopy test.db test.db2
+  db eval {
+    DROP TABLE t2;
+    INSERT INTO t1 VALUES(zeroblob(1000), zeroblob(1000));
+    INSERT INTO t1 VALUES(randomblob(1000), randomblob(1000));
+  }
+} {}
+
+do_test 1.2 {
+  sqlite3 db2 test.db2
+  set stmt [sqlite3_prepare_v2 db2 "SELECT * FROM t2" -1 dummy]
+  sqlite3_step $stmt
+} {SQLITE_ROW}
+
+do_test 1.3 {
+  list [catch { sqlite3_backup B db2 main db main } msg] $msg
+} {1 {sqlite3_backup_init() failed}}
+
+do_test 1.4 {
+  sqlite3_errmsg db2
+} {destination database is in use}
+
+do_test 1.5 {
+  sqlite3_reset $stmt
+  sqlite3_backup B db2 main db main
+  B step 200
+  B finish
+} {SQLITE_OK}
+
+do_test 1.6 {
+  list [sqlite3_step $stmt] [sqlite3_finalize $stmt]
+} {SQLITE_ERROR SQLITE_ERROR}
+
+do_test 1.7 {
+  sqlite3_errmsg db2
+} {no such table: t2}
+
+finish_test
diff --git a/test/backup_ioerr.test b/test/backup_ioerr.test
new file mode 100644
index 0000000000000000000000000000000000000000..ca3fd3240d778d1b6fd19b59a66ffcf7a66b9f78
--- /dev/null
+++ b/test/backup_ioerr.test
@@ -0,0 +1,286 @@
+# 2009 January 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the handling of IO errors by the
+# sqlite3_backup_XXX APIs.
+#
+# $Id: backup_ioerr.test,v 1.3 2009/04/10 18:41:01 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+proc data_checksum {db file} { 
+  $db one "SELECT md5sum(a, b) FROM ${file}.t1" 
+}
+proc test_contents {name db1 file1 db2 file2} {
+  $db2 eval {select * from sqlite_master}
+  $db1 eval {select * from sqlite_master}
+  set checksum [data_checksum $db2 $file2]
+  uplevel [list do_test $name [list data_checksum $db1 $file1] $checksum]
+}
+
+#--------------------------------------------------------------------
+# This proc creates a database of approximately 290 pages. Depending
+# on whether or not auto-vacuum is configured. Test cases backup_ioerr-1.*
+# verify nothing more than this assumption.
+#
+proc populate_database {db {xtra_large 0}} {
+  execsql {
+    BEGIN;
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, randstr(1000,1000));
+    INSERT INTO t1 SELECT a+ 1, randstr(1000,1000) FROM t1;
+    INSERT INTO t1 SELECT a+ 2, randstr(1000,1000) FROM t1;
+    INSERT INTO t1 SELECT a+ 4, randstr(1000,1000) FROM t1;
+    INSERT INTO t1 SELECT a+ 8, randstr(1000,1000) FROM t1;
+    INSERT INTO t1 SELECT a+16, randstr(1000,1000) FROM t1;
+    INSERT INTO t1 SELECT a+32, randstr(1000,1000) FROM t1;
+    CREATE INDEX i1 ON t1(b);
+    COMMIT;
+  } $db
+  if {$xtra_large} {
+    execsql { INSERT INTO t1 SELECT a+64, randstr(1000,1000) FROM t1 } $db
+  }
+}
+do_test backup_ioerr-1.1 {
+  populate_database db
+  set nPage [expr {[file size test.db] / 1024}]
+  expr {$nPage>130 && $nPage<160}
+} {1}
+do_test backup_ioerr-1.2 {
+  expr {[file size test.db] > $sqlite_pending_byte}
+} {1}
+do_test backup_ioerr-1.3 {
+  db close
+  forcedelete test.db
+} {}
+
+# Turn off IO error simulation.
+#
+proc clear_ioerr_simulation {} {
+  set ::sqlite_io_error_hit 0
+  set ::sqlite_io_error_hardhit 0
+  set ::sqlite_io_error_pending 0
+  set ::sqlite_io_error_persist 0
+}
+
+#--------------------------------------------------------------------
+# The following procedure runs with SQLite's IO error simulation 
+# enabled.
+#
+#   1) Start with a reasonably sized database. One that includes the
+#      pending-byte (locking) page.
+#
+#   2) Open a backup process. Set the cache-size for the destination
+#      database to 10 pages only.
+#
+#   3) Step the backup process N times to partially backup the database
+#      file. If an IO error is reported, then the backup process is
+#      concluded with a call to backup_finish().
+#
+#      If an IO error occurs, verify that:
+#
+#      * the call to backup_step() returns an SQLITE_IOERR_XXX error code.
+#
+#      * after the failed call to backup_step() but before the call to
+#        backup_finish() the destination database handle error code and 
+#        error message remain unchanged.
+#
+#      * the call to backup_finish() returns an SQLITE_IOERR_XXX error code.
+#
+#      * following the call to backup_finish(), the destination database
+#        handle has been populated with an error code and error message.
+#
+#   4) Write to the database via the source database connection. Check 
+#      that:
+#
+#      * If an IO error occurs while writing the source database, the
+#        write operation should report an IO error. The backup should 
+#        proceed as normal.
+#
+#      * If an IO error occurs while updating the backup, the write 
+#        operation should proceed normally. The error should be reported
+#        from the next call to backup_step() (in step 5 of this test
+#        procedure).
+#
+#   5) Step the backup process to finish the backup. If an IO error is 
+#      reported, then the backup process is concluded with a call to 
+#      backup_finish().
+#
+#      Test that if an IO error occurs, or if one occurred while updating
+#      the backup database during step 4, then the conditions listed
+#      under step 3 are all true.
+#
+#   6) Finish the backup process.
+#
+#   * If the backup succeeds (backup_finish() returns SQLITE_OK), then
+#     the contents of the backup database should match that of the
+#     source database.
+#
+#   * If the backup fails (backup_finish() returns other than SQLITE_OK), 
+#     then the contents of the backup database should be as they were 
+#     before the operation was started.
+#
+# The following factors are varied:
+#
+#   * Destination database is initially larger than the source database, OR
+#   * Destination database is initially smaller than the source database.
+#
+#   * IO errors are transient, OR
+#   * IO errors are persistent.
+#
+#   * Destination page-size is smaller than the source.
+#   * Destination page-size is the same as the source.
+#   * Destination page-size is larger than the source.
+#
+
+set iTest 1
+foreach bPersist {0 1} {
+foreach iDestPagesize {512 1024 4096} {
+foreach zSetupBak [list "" {populate_database ddb 1}] {
+
+  incr iTest
+  set bStop 0
+for {set iError 1} {$bStop == 0} {incr iError} {
+  # Disable IO error simulation.
+  clear_ioerr_simulation
+
+  catch { ddb close }
+  catch { sdb close }
+  catch { forcedelete test.db }
+  catch { forcedelete bak.db }
+
+  # Open the source and destination databases.
+  sqlite3 sdb test.db
+  sqlite3 ddb bak.db
+
+  # Step 1: Populate the source and destination databases.
+  populate_database sdb
+  ddb eval "PRAGMA page_size = $iDestPagesize"
+  ddb eval "PRAGMA cache_size = 10"
+  eval $zSetupBak
+
+  # Step 2: Open the backup process.
+  sqlite3_backup B ddb main sdb main
+
+  # Enable IO error simulation.
+  set ::sqlite_io_error_pending $iError
+  set ::sqlite_io_error_persist $bPersist
+
+  # Step 3: Partially backup the database. If an IO error occurs, check
+  # a few things then skip to the next iteration of the loop.
+  #
+  set rc [B step 100]
+  if {$::sqlite_io_error_hardhit} {
+
+    do_test backup_ioerr-$iTest.$iError.1 {
+      string match SQLITE_IOERR* $rc
+    } {1}
+    do_test backup_ioerr-$iTest.$iError.2 {
+      list [sqlite3_errcode ddb] [sqlite3_errmsg ddb]
+    } {SQLITE_OK {not an error}}
+
+    set rc [B finish]
+    do_test backup_ioerr-$iTest.$iError.3 {
+      string match SQLITE_IOERR* $rc
+    } {1}
+
+    do_test backup_ioerr-$iTest.$iError.4 {
+      sqlite3_errmsg ddb
+    } {disk I/O error}
+
+    clear_ioerr_simulation
+    sqlite3 ddb bak.db
+    integrity_check backup_ioerr-$iTest.$iError.5 ddb
+
+    continue
+  }
+
+  # No IO error was encountered during step 3. Check that backup_step()
+  # returned SQLITE_OK before proceding.
+  do_test backup_ioerr-$iTest.$iError.6 {
+    expr {$rc eq "SQLITE_OK"}
+  } {1}
+
+  # Step 4: Write to the source database.
+  set rc [catchsql { UPDATE t1 SET b = randstr(1000,1000) WHERE a < 50 } sdb]
+
+  if {[lindex $rc 0] && $::sqlite_io_error_persist==0} {
+    # The IO error occurred while updating the source database. In this
+    # case the backup should be able to continue.
+    set rc [B step 5000]
+    if { $rc != "SQLITE_IOERR_UNLOCK" } {
+      do_test backup_ioerr-$iTest.$iError.7 {
+        list [B step 5000] [B finish]
+      } {SQLITE_DONE SQLITE_OK}
+
+      clear_ioerr_simulation
+      test_contents backup_ioerr-$iTest.$iError.8 ddb main sdb main
+      integrity_check backup_ioerr-$iTest.$iError.9 ddb
+    } else {
+      do_test backup_ioerr-$iTest.$iError.10 {
+        B finish
+      } {SQLITE_IOERR_UNLOCK}
+    }
+
+    clear_ioerr_simulation
+    sqlite3 ddb bak.db
+    integrity_check backup_ioerr-$iTest.$iError.11 ddb
+
+    continue
+  }
+
+  # Step 5: Finish the backup operation. If an IO error occurs, check that
+  # it is reported correctly and skip to the next iteration of the loop.
+  #
+  set rc [B step 5000]
+  if {$rc != "SQLITE_DONE"} {
+    do_test backup_ioerr-$iTest.$iError.12 {
+      string match SQLITE_IOERR* $rc
+    } {1}
+    do_test backup_ioerr-$iTest.$iError.13 {
+      list [sqlite3_errcode ddb] [sqlite3_errmsg ddb]
+    } {SQLITE_OK {not an error}}
+
+    set rc [B finish]
+    do_test backup_ioerr-$iTest.$iError.14 {
+      string match SQLITE_IOERR* $rc
+    } {1}
+    do_test backup_ioerr-$iTest.$iError.15 {
+      sqlite3_errmsg ddb
+    } {disk I/O error}
+
+    clear_ioerr_simulation
+    sqlite3 ddb bak.db
+    integrity_check backup_ioerr-$iTest.$iError.16 ddb
+
+    continue
+  }
+
+  # The backup was successfully completed.
+  #
+  do_test backup_ioerr-$iTest.$iError.17 {
+    list [set rc] [B finish]
+  } {SQLITE_DONE SQLITE_OK}
+
+  clear_ioerr_simulation
+  sqlite3 sdb test.db
+  sqlite3 ddb bak.db
+
+  test_contents backup_ioerr-$iTest.$iError.18 ddb main sdb main
+  integrity_check backup_ioerr-$iTest.$iError.19 ddb
+
+  set bStop [expr $::sqlite_io_error_pending<=0]
+}}}}
+
+catch { sdb close }
+catch { ddb close }
+finish_test
diff --git a/test/backup_malloc.test b/test/backup_malloc.test
new file mode 100644
index 0000000000000000000000000000000000000000..5444a70bdf763101adfc4db6316ec42c2c8c4ad7
--- /dev/null
+++ b/test/backup_malloc.test
@@ -0,0 +1,119 @@
+# 2009 January 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the handling of OOM errors by the
+# sqlite3_backup_XXX APIs.
+#
+# $Id: backup_malloc.test,v 1.2 2009/02/04 22:46:47 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+source $testdir/malloc_common.tcl
+
+do_malloc_test backup_malloc-1 -tclprep {
+  execsql {
+    PRAGMA cache_size = 10;
+    BEGIN;
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, randstr(1000,1000));
+    INSERT INTO t1 SELECT a+ 1, randstr(1000,1000) FROM t1;
+    INSERT INTO t1 SELECT a+ 2, randstr(1000,1000) FROM t1;
+    INSERT INTO t1 SELECT a+ 4, randstr(1000,1000) FROM t1;
+    INSERT INTO t1 SELECT a+ 8, randstr(1000,1000) FROM t1;
+    INSERT INTO t1 SELECT a+16, randstr(1000,1000) FROM t1;
+    INSERT INTO t1 SELECT a+32, randstr(1000,1000) FROM t1;
+    INSERT INTO t1 SELECT a+64, randstr(1000,1000) FROM t1;
+    CREATE INDEX i1 ON t1(b);
+    COMMIT;
+  }
+  sqlite3 db2 test2.db
+  execsql { PRAGMA cache_size = 10 } db2
+} -tclbody {
+
+  # Create a backup object.
+  #
+  set rc [catch {sqlite3_backup B db2 main db main}]
+  if {$rc && [sqlite3_errcode db2] == "SQLITE_NOMEM"} {
+    error "out of memory"
+  }
+
+  # Run the backup process some.
+  #
+  set rc [B step 50]
+  if {$rc == "SQLITE_NOMEM" || $rc == "SQLITE_IOERR_NOMEM"} {
+    error "out of memory"
+  }
+  
+  # Update the database.
+  #
+  execsql { UPDATE t1 SET a = a + 1 }
+  
+  # Finish doing the backup.
+  #
+  set rc [B step 5000]
+  if {$rc == "SQLITE_NOMEM" || $rc == "SQLITE_IOERR_NOMEM"} {
+    error "out of memory"
+  }
+ 
+  # Finalize the backup.
+  B finish
+} -cleanup {
+  catch { B finish }
+  catch { db2 close }
+}
+
+do_malloc_test backup_malloc-2 -tclprep {
+  sqlite3 db2 test2.db
+} -tclbody {
+  set rc [catch {sqlite3_backup B db2 temp db main}]
+  set errcode [sqlite3_errcode db2]
+  if {$rc && ($errcode == "SQLITE_NOMEM" || $errcode == "SQLITE_IOERR_NOMEM")} {
+    error "out of memory"
+  }
+} -cleanup {
+  catch { B finish }
+  db2 close
+}
+
+reset_db
+do_execsql_test 3.0 {
+  PRAGMA page_size = 16384;
+  BEGIN;
+  CREATE TABLE t1(a, b);
+  INSERT INTO t1 VALUES(1, 2);
+  COMMIT;
+}
+
+do_faultsim_test 3 -faults oom* -prep {
+  catch { db close }
+  catch { db2 close }
+
+  forcedelete test2.db
+  sqlite3 db2 test2.db
+  sqlite3 db test.db
+  sqlite3_backup B db2 main db main
+} -body {
+
+  set rc [B step 50]
+  if {$rc == "SQLITE_NOMEM" || $rc == "SQLITE_IOERR_NOMEM"} {
+    error "out of memory"
+  }
+
+} -test {
+  faultsim_test_result {0 {}} 
+  faultsim_integrity_check
+  
+  # Finalize the backup.
+  catch { B finish }
+}
+
+finish_test
diff --git a/test/badutf.test b/test/badutf.test
new file mode 100644
index 0000000000000000000000000000000000000000..d09c933c1810dbd55486fef6b4e92d53522ac0a0
--- /dev/null
+++ b/test/badutf.test
@@ -0,0 +1,143 @@
+# 2007 May 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. 
+#
+# This file checks to make sure SQLite is able to gracefully
+# handle malformed UTF-8.
+#
+# $Id: badutf.test,v 1.2 2007/09/12 17:01:45 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test badutf-1.1 {
+  db eval {PRAGMA encoding=UTF8}
+  sqlite3_exec db {SELECT hex('%80') AS x}
+} {0 {x 80}}
+do_test badutf-1.2 {
+  sqlite3_exec db {SELECT hex('%81') AS x}
+} {0 {x 81}}
+do_test badutf-1.3 {
+  sqlite3_exec db {SELECT hex('%bf') AS x}
+} {0 {x BF}}
+do_test badutf-1.4 {
+  sqlite3_exec db {SELECT hex('%c0') AS x}
+} {0 {x C0}}
+do_test badutf-1.5 {
+  sqlite3_exec db {SELECT hex('%e0') AS x}
+} {0 {x E0}}
+do_test badutf-1.6 {
+  sqlite3_exec db {SELECT hex('%f0') AS x}
+} {0 {x F0}}
+do_test badutf-1.7 {
+  sqlite3_exec db {SELECT hex('%ff') AS x}
+} {0 {x FF}}
+
+sqlite3 db2 {}
+ifcapable utf16 {
+  do_test badutf-1.10 {
+    db2 eval {PRAGMA encoding=UTF16be}
+    sqlite3_exec db2 {SELECT hex('%80') AS x}
+  } {0 {x 0080}}
+  do_test badutf-1.11 {
+    sqlite3_exec db2 {SELECT hex('%81') AS x}
+  } {0 {x 0081}}
+  do_test badutf-1.12 {
+    sqlite3_exec db2 {SELECT hex('%bf') AS x}
+  } {0 {x 00BF}}
+  do_test badutf-1.13 {
+    sqlite3_exec db2 {SELECT hex('%c0') AS x}
+  } {0 {x FFFD}}
+  do_test badutf-1.14 {
+    sqlite3_exec db2 {SELECT hex('%c1') AS x}
+  } {0 {x FFFD}}
+  do_test badutf-1.15 {
+    sqlite3_exec db2 {SELECT hex('%c0%bf') AS x}
+  } {0 {x FFFD}}
+  do_test badutf-1.16 {
+    sqlite3_exec db2 {SELECT hex('%c1%bf') AS x}
+  } {0 {x FFFD}}
+  do_test badutf-1.17 {
+    sqlite3_exec db2 {SELECT hex('%c3%bf') AS x}
+  } {0 {x 00FF}}
+  do_test badutf-1.18 {
+    sqlite3_exec db2 {SELECT hex('%e0') AS x}
+  } {0 {x FFFD}}
+  do_test badutf-1.19 {
+    sqlite3_exec db2 {SELECT hex('%f0') AS x}
+  } {0 {x FFFD}}
+  do_test badutf-1.20 {
+    sqlite3_exec db2 {SELECT hex('%ff') AS x}
+  } {0 {x FFFD}}
+}
+
+
+ifcapable bloblit {
+  do_test badutf-2.1 {
+    sqlite3_exec db {SELECT '%80'=CAST(x'80' AS text) AS x}
+  } {0 {x 1}}
+  do_test badutf-2.2 {
+    sqlite3_exec db {SELECT CAST('%80' AS blob)=x'80' AS x}
+  } {0 {x 1}}
+}
+
+do_test badutf-3.1 {
+  sqlite3_exec db {SELECT length('%80') AS x}
+} {0 {x 1}}
+do_test badutf-3.2 {
+  sqlite3_exec db {SELECT length('%61%62%63') AS x}
+} {0 {x 3}}
+do_test badutf-3.3 {
+  sqlite3_exec db {SELECT length('%7f%80%81') AS x}
+} {0 {x 3}}
+do_test badutf-3.4 {
+  sqlite3_exec db {SELECT length('%61%c0') AS x}
+} {0 {x 2}}
+do_test badutf-3.5 {
+  sqlite3_exec db {SELECT length('%61%c0%80%80%80%80%80%80%80%80%80%80') AS x}
+} {0 {x 2}}
+do_test badutf-3.6 {
+  sqlite3_exec db {SELECT length('%c0%80%80%80%80%80%80%80%80%80%80') AS x}
+} {0 {x 1}}
+do_test badutf-3.7 {
+  sqlite3_exec db {SELECT length('%80%80%80%80%80%80%80%80%80%80') AS x}
+} {0 {x 10}}
+do_test badutf-3.8 {
+  sqlite3_exec db {SELECT length('%80%80%80%80%80%f0%80%80%80%80') AS x}
+} {0 {x 6}}
+do_test badutf-3.9 {
+  sqlite3_exec db {SELECT length('%80%80%80%80%80%f0%80%80%80%ff') AS x}
+} {0 {x 7}}
+
+do_test badutf-4.1 {
+  sqlite3_exec db {SELECT hex(trim('%80%80%80%f0%80%80%80%ff','%80%ff')) AS x}
+} {0 {x F0}}
+do_test badutf-4.2 {
+  sqlite3_exec db {SELECT hex(ltrim('%80%80%80%f0%80%80%80%ff','%80%ff')) AS x}
+} {0 {x F0808080FF}}
+do_test badutf-4.3 {
+  sqlite3_exec db {SELECT hex(rtrim('%80%80%80%f0%80%80%80%ff','%80%ff')) AS x}
+} {0 {x 808080F0}}
+do_test badutf-4.4 {
+  sqlite3_exec db {SELECT hex(trim('%80%80%80%f0%80%80%80%ff','%ff%80')) AS x}
+} {0 {x 808080F0808080FF}}
+do_test badutf-4.5 {
+  sqlite3_exec db {SELECT hex(trim('%ff%80%80%f0%80%80%80%ff','%ff%80')) AS x}
+} {0 {x 80F0808080FF}}
+do_test badutf-4.6 {
+  sqlite3_exec db {SELECT hex(trim('%ff%80%f0%80%80%80%ff','%ff%80')) AS x}
+} {0 {x F0808080FF}}
+do_test badutf-4.7 {
+  sqlite3_exec db {SELECT hex(trim('%ff%80%f0%80%80%80%ff','%ff%80%80')) AS x}
+} {0 {x FF80F0808080FF}}
+
+db2 close
+finish_test
diff --git a/test/badutf2.test b/test/badutf2.test
new file mode 100644
index 0000000000000000000000000000000000000000..64a730d6facd3f60dd65a8fc36f5a44e0f51d496
--- /dev/null
+++ b/test/badutf2.test
@@ -0,0 +1,127 @@
+# 2011 March 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. 
+#
+# This file checks to make sure SQLite is able to gracEFully
+# handle malformed UTF-8.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+proc utf8_to_ustr2 {s} {
+  set r ""
+  foreach i [split $s ""] {
+    scan $i %c c
+    append r [format \\u%04.4X $c]
+  }
+  set r
+}
+
+proc utf8_to_hstr {in} {
+ regsub -all -- {(..)} $in {%[format "%s" \1]} out
+ subst $out
+}
+
+proc utf8_to_xstr {in} {
+ regsub -all -- {(..)} $in {\\\\x[format "%s" \1]} out
+ subst $out
+}
+
+proc utf8_to_ustr {in} {
+ regsub -all -- {(..)} $in {\\\\u[format "%04.4X" 0x\1]} out
+ subst $out
+}
+
+do_test badutf2-1.0 {
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+  db eval "PRAGMA encoding = 'UTF-8'"
+} {}
+
+do_test badutf2-4.0 {
+  set S [sqlite3_prepare_v2 db "SELECT ?" -1 dummy]
+  sqlite3_expired $S
+} {0}
+        
+foreach { i len uval xstr ustr u2u } {
+1 1 00     \x00         {}        {}
+2 1 01     \x01         "\\u0001" 01
+3 1 3F     \x3F         "\\u003F" 3F
+4 1 7F     \x7F         "\\u007F" 7F
+5 1 80     \x80         "\\u0080" C280
+6 1 C3BF   \xFF         "\\u00FF" C3BF
+7 3 EFBFBD \xEF\xBF\xBD "\\uFFFD" {}
+} {
+
+  set hstr [ utf8_to_hstr $uval ]
+
+  ifcapable bloblit {
+    if {$hstr != "%00"} {
+      do_test badutf2-2.1.$i {
+        set sql "SELECT '$hstr'=CAST(x'$uval' AS text) AS x;"
+        set res [ sqlite3_exec db $sql ]
+        lindex [ lindex $res 1] 1
+      } {1}
+      do_test badutf2-2.2.$i {
+        set sql "SELECT CAST('$hstr' AS blob)=x'$uval' AS x;"
+        set res [ sqlite3_exec db $sql ]
+        lindex [ lindex $res 1] 1
+      } {1}
+    }
+    do_test badutf2-2.3.$i {
+      set sql "SELECT hex(CAST(x'$uval' AS text)) AS x;"
+      set res [ sqlite3_exec db $sql ]
+      lindex [ lindex $res 1] 1
+    } $uval
+    do_test badutf2-2.4.$i {
+      set sql "SELECT hex(CAST(x'$uval' AS text)) AS x;"
+      set res [ sqlite3_exec db $sql ]
+      lindex [ lindex $res 1] 1
+    } $uval
+  }
+
+  if {$hstr != "%00"} {
+    do_test badutf2-3.1.$i {
+      set sql "SELECT hex('$hstr') AS x;"
+      set res [ sqlite3_exec db $sql ]
+      lindex [ lindex $res 1] 1
+    } $uval
+  }
+
+  # Tcl 8.7 and later do automatic bad-utf8 correction for
+  # characters 0x80 thru 0x9f so test case 5 does not work here.
+  if {$i==5 && $tcl_version>=8.7} {
+     # no-op
+  } else {
+    do_test badutf2-4.1.$i {
+      sqlite3_reset $S
+      sqlite3_bind_text $S 1 $xstr $len
+      sqlite3_step $S
+      utf8_to_ustr2 [ sqlite3_column_text $S 0 ]
+    } $ustr
+  }
+
+  ifcapable debug {
+    do_test badutf2-5.1.$i {
+      utf8_to_utf8 $uval
+    } $u2u
+  }
+
+}
+
+do_test badutf2-4.2 {
+  sqlite3_finalize $S
+} {SQLITE_OK}
+
+
+finish_test
diff --git a/test/basexx1.test b/test/basexx1.test
new file mode 100644
index 0000000000000000000000000000000000000000..947a5678f328b43b1e8af3e13449a115ead7e340
--- /dev/null
+++ b/test/basexx1.test
@@ -0,0 +1,155 @@
+# 2022 November 22
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix basexx
+
+if {[catch {load_static_extension db basexx} error]} {
+  puts "Skipping basexx tests, hit load error: $error"
+  finish_test; return
+}
+
+# Empty blobs encode to empty strings.
+do_execsql_test 100 {
+  SELECT base64(x'')||base85(x'');
+} {{}}
+
+# Empty strings decode to empty blobs.
+do_execsql_test 101 {
+  SELECT hex(x'01'||base64('')||base85('')||x'02');
+} {0102}
+
+# Basic base64 encoding
+do_execsql_test 102 {
+  SELECT base64(x'000102030405');
+  SELECT base64(x'0001020304');
+  SELECT base64(x'00010203');
+} {{AAECAwQF
+} {AAECAwQ=
+} {AAECAw==
+}}
+
+# Basic base64 decoding with pad chars
+do_execsql_test 103 {
+  SELECT hex(base64('AAECAwQF'));
+  SELECT hex(base64('AAECAwQ='));
+  SELECT hex(base64('AAECAw=='));
+} {000102030405 0001020304 00010203}
+
+# Basic base64 decoding without pad chars and with whitespace
+do_execsql_test 104 {
+  SELECT hex(base64(' AAECAwQF '));
+  SELECT hex(base64(' AAECAwQ'));
+  SELECT hex(base64('AAECAw '));
+} {000102030405 0001020304 00010203}
+
+# Basic base85 encoding
+do_execsql_test 105 {
+  SELECT base85(x'000102030405');
+  SELECT base85(x'0001020304');
+  SELECT base85(x'00010203');
+} {{##/2,#2/
+} {##/2,#*
+} {##/2,
+}}
+
+# Basic base85 decoding with and without whitespace
+do_execsql_test 106 {
+  SELECT hex(base85('##/2,#2/'));
+  SELECT hex(base85('##/2,#*'));
+  SELECT hex(base85('##/2,'));
+  SELECT hex(base85(' ##/2,#2/ '));
+  SELECT hex(base85(' ##/2,#*'));
+  SELECT hex(base85('##/2, '));
+} {000102030405 0001020304 00010203 000102030405 0001020304 00010203}
+
+# Round-trip some random blobs.
+do_execsql_test 107 {
+  CREATE TEMP TABLE rb( len int, b blob ) STRICT;
+  INSERT INTO rb(len) VALUES (1),(2),(3),(4),(5),(150),(151),(152),(153),(1054);
+  UPDATE rb SET b = randomblob(len);
+  SELECT len, base64(base64(b))=b, base85(base85(b))=b
+  FROM rb ORDER BY len;
+} {1 1 1 2 1 1 3 1 1 4 1 1 5 1 1 150 1 1 151 1 1 152 1 1 153 1 1 1054 1 1}
+
+# Same round-trip but with space or junk prepended and/or appended or not.
+do_execsql_test 108 {
+  CREATE TEMP TABLE junk(j text, rank int);
+  INSERT INTO junk VALUES ('',0),(' ',1),('~',2);
+  SELECT len, base64(j.j||base64(b)||j.j)=b, base85(j.j||base85(b)||j.j)=b
+  FROM rb r, junk j WHERE j.rank=(r.len+r.len/25)%3 ORDER BY len;
+} {1 1 1 2 1 1 3 1 1 4 1 1 5 1 1 150 1 1 151 1 1 152 1 1 153 1 1 1054 1 1}
+
+# Exercise the fail-on-too-large result feature.
+
+set inLimit [sqlite3_limit db SQLITE_LIMIT_LENGTH -1]
+sqlite3_limit db SQLITE_LIMIT_LENGTH 1300
+
+do_catchsql_test 109 {
+  SELECT len, base64(b) FROM rb WHERE len>200;
+} {1 {blob expanded to base64 too big}}
+
+do_catchsql_test 110 {
+  SELECT len, base85(b) FROM rb WHERE len>200;
+} {1 {blob expanded to base85 too big}}
+
+do_catchsql_test 111 {
+  SELECT length(base85(b))=1335 FROM rb WHERE len=1054;
+} {1 {blob expanded to base85 too big}}
+
+sqlite3_limit db SQLITE_LIMIT_LENGTH $inLimit
+
+# Exercise is_base85(t)
+
+do_execsql_test 112 {
+  SELECT is_base85(' '||base85(x'123456')||char(10)),
+  is_base85('#$%&*+,-./0123456789:;<=>?@'
+   ||'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+   ||'[\]^_`'
+   ||'abcdefghijklmnopqrstuvwxyz'),
+  is_base85('!'), is_base85('"'), is_base85(''''), is_base85('('),
+  is_base85(')'), is_base85(char(123)), is_base85('|'), is_base85(char(125)),
+  is_base85('~'), is_base85(char(127));
+} {1 1 0 0 0 0 0 0 0 0 0 0}
+
+do_execsql_test 113 {
+  SELECT is_base85(NULL) IS NULL;
+} {1}
+
+do_catchsql_test 114 {
+  SELECT is_base85(1);
+} {1 {is_base85 accepts only text or NULL}}
+
+do_catchsql_test 115 {
+  SELECT is_base85(1.1);
+} {1 {is_base85 accepts only text or NULL}}
+
+do_catchsql_test 116 {
+  SELECT is_base85(x'00');
+} {1 {is_base85 accepts only text or NULL}}
+
+# Round-trip many bigger random blobs.
+
+do_execsql_test 117 {
+  CREATE TABLE bs(b blob, num);
+  INSERT INTO bs SELECT randomblob(4000 + n%3), n 
+   FROM ( 
+     WITH RECURSIVE seq(n) AS (
+      VALUES(1) UNION ALL SELECT n+1
+      FROM seq WHERE n<100
+     ) SELECT n FROM seq);
+  SELECT num FROM bs WHERE base64(base64(b))!=b;
+  SELECT num FROM bs WHERE base85(base85(b))!=b;
+} {}
+
+finish_test
diff --git a/test/bc_common.tcl b/test/bc_common.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..c47f99681fb7d61c40afe6c8ef64384968daa935
--- /dev/null
+++ b/test/bc_common.tcl
@@ -0,0 +1,75 @@
+
+
+
+proc bc_find_binaries {zCaption} {
+  # Search for binaries to test against. Any executable files that match
+  # our naming convention are assumed to be testfixture binaries to test
+  # against.
+  #
+  set binaries [list]
+  set self [info nameofexec]
+  set pattern "$self?*"
+  if {$::tcl_platform(platform)=="windows"} {
+    set pattern [string map {\.exe {}} $pattern]
+  }
+  foreach file [glob -nocomplain $pattern] {
+    if {$file==$self} continue
+    if {[file executable $file] && [file isfile $file]} {lappend binaries $file}
+  }
+
+  if {[llength $binaries]==0} {
+    puts "WARNING: No historical binaries to test against."
+    puts "WARNING: Omitting backwards-compatibility tests"
+  }
+
+  foreach bin $binaries {
+    puts -nonewline "Testing against $bin - "
+    flush stdout
+    puts "version [get_version $bin]"
+  }
+
+  set ::BC(binaries) $binaries
+  return $binaries
+}
+
+proc get_version {binary} {
+  set chan [launch_testfixture $binary]
+  set v [testfixture $chan { sqlite3 -version }]
+  close $chan
+  set v
+}
+
+proc do_bc_test {bin script} {
+
+  forcedelete test.db
+  set ::bc_chan [launch_testfixture $bin]
+
+  proc code1 {tcl} { uplevel #0 $tcl }
+  proc code2 {tcl} { testfixture $::bc_chan $tcl }
+  proc sql1 sql { code1 [list db eval $sql] }
+  proc sql2 sql { code2 [list db eval $sql] }
+
+  code1 { sqlite3 db test.db }
+  code2 { sqlite3 db test.db }
+
+  set bintag $bin
+  regsub {.*testfixture\.} $bintag {} bintag
+  set bintag [string map {\.exe {}} $bintag]
+  if {$bintag == ""} {set bintag self}
+  set saved_prefix $::testprefix
+  append ::testprefix ".$bintag"
+
+  uplevel $script
+
+  set ::testprefix $saved_prefix
+
+  catch { code1 { db close } }
+  catch { code2 { db close } }
+  catch { close $::bc_chan }
+}
+
+proc do_all_bc_test {script} {
+  foreach bin $::BC(binaries) {
+    uplevel [list do_bc_test $bin $script]
+  }
+}
diff --git a/test/bestindex1.test b/test/bestindex1.test
new file mode 100644
index 0000000000000000000000000000000000000000..e505a8bc4c45512b9f00572dda88c91333d038ea
--- /dev/null
+++ b/test/bestindex1.test
@@ -0,0 +1,344 @@
+# 2016-03-01
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix bestindex1
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+register_tcl_module db
+
+proc vtab_command {method args} {
+  switch -- $method {
+    xConnect {
+      return "CREATE TABLE t1(a, b, c)"
+    }
+
+    xBestIndex {
+      set hdl [lindex $args 0]
+      set clist [$hdl constraints]
+      set orderby [$hdl orderby]
+      
+      if {[llength $clist]!=1} { error "unexpected constraint list" }
+      catch { array unset C }
+      array set C [lindex $clist 0]
+      if {$C(usable)} {
+        return "omit 0 cost 0 rows 1 idxnum 555 idxstr eq!"
+      } else {
+        return "cost 1000000 rows 0 idxnum 0 idxstr scan..."
+      }
+    }
+
+  }
+
+  return {}
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE x1 USING tcl(vtab_command);
+} {}
+
+do_eqp_test 1.1 {
+  SELECT * FROM x1 WHERE a = 'abc'
+} {SCAN x1 VIRTUAL TABLE INDEX 555:eq!}
+
+do_eqp_test 1.2 {
+  SELECT * FROM x1 WHERE a IN ('abc', 'def');
+} {SCAN x1 VIRTUAL TABLE INDEX 555:eq!}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+register_tcl_module db
+
+# Parameter $mode may be one of:
+#
+#   "omit" - Implement filtering. Set the omit flag.
+#   "use"  - Implement filtering. Use the constraint, but do not set omit.
+#   "use2" - Do not implement filtering. Use the constraint anyway.
+#
+#   
+proc t1_vtab {mode method args} {
+  switch -- $method {
+    xConnect {
+      return "CREATE TABLE t1(a, b)"
+    }
+
+    xBestIndex {
+      set hdl [lindex $args 0]
+      set clist [$hdl constraints]
+      set orderby [$hdl orderby]
+
+      set SQL_FILTER {SELECT * FROM t1x WHERE a='%1%'}
+      set SQL_SCAN   {SELECT * FROM t1x}
+
+      set idx 0
+      for {set idx 0} {$idx < [llength $clist]} {incr idx} {
+        array unset C
+        array set C [lindex $clist $idx]
+        if {$C(column)==0 && $C(op)=="eq" && $C(usable)} {
+          switch -- $mode {
+            "omit" {
+              return [list omit $idx rows 10 cost 10 idxstr $SQL_FILTER]
+            }
+            "use" {
+              return [list use $idx rows 10 cost 10 idxstr $SQL_FILTER]
+            }
+            "use2" {
+              return [list use $idx rows 10 cost 10 idxstr $SQL_SCAN]
+            }
+            default {
+              error "Bad mode - $mode"
+            }
+          }
+        }
+      }
+
+      return [list idxstr {SELECT * FROM t1x}]
+    }
+
+    xFilter {
+      set map [list %1% [lindex $args 2 0]]
+      set sql [string map $map [lindex $args 1]]
+      return [list sql $sql]
+    }
+  }
+
+  return {}
+}
+
+do_execsql_test 2.1 {
+  CREATE TABLE t1x(i INTEGER PRIMARY KEY, a, b);
+  INSERT INTO t1x VALUES(1, 'one', 1);
+  INSERT INTO t1x VALUES(2, 'two', 2);
+  INSERT INTO t1x VALUES(3, 'three', 3);
+  INSERT INTO t1x VALUES(4, 'four', 4);
+}
+
+foreach {tn mode} {
+  1 use 2 omit 3 use2
+} {
+  do_execsql_test 2.2.$mode.1 "
+    DROP TABLE IF EXISTS t1;
+    CREATE VIRTUAL TABLE t1 USING tcl(t1_vtab $mode);
+  "
+
+  do_execsql_test 2.2.$mode.2 {SELECT * FROM t1} {one 1 two 2 three 3 four 4}
+  do_execsql_test 2.2.$mode.3 {SELECT rowid FROM t1} {1 2 3 4}
+  do_execsql_test 2.2.$mode.4 {SELECT rowid FROM t1 WHERE a='two'} {2} 
+
+  do_execsql_test 2.2.$mode.5 {
+    SELECT rowid FROM t1 WHERE a IN ('one', 'four') ORDER BY +rowid
+  } {1 4} 
+
+  set plan(use) {
+    QUERY PLAN
+    |--SCAN t1 VIRTUAL TABLE INDEX 0:SELECT * FROM t1x WHERE a='%1%'
+    `--USE TEMP B-TREE FOR ORDER BY
+  }
+  set plan(omit) {
+    QUERY PLAN
+    |--SCAN t1 VIRTUAL TABLE INDEX 0:SELECT * FROM t1x WHERE a='%1%'
+    `--USE TEMP B-TREE FOR ORDER BY
+  }
+  set plan(use2) {
+    QUERY PLAN
+    |--SCAN t1 VIRTUAL TABLE INDEX 0:SELECT * FROM t1x
+    `--USE TEMP B-TREE FOR ORDER BY
+  }
+
+  do_eqp_test 2.2.$mode.6 { 
+    SELECT rowid FROM t1 WHERE a IN ('one', 'four') ORDER BY +rowid
+  } [string map {"\n  " "\n"} $plan($mode)]
+}
+
+# 2016-04-09.
+# Demonstrate a register overwrite problem when using two virtual
+# tables where the outer loop uses the IN operator.
+#
+set G(collist) [list PrimaryKey flagA columnA]
+set G(cols) [join $G(collist) ,]
+set G(nulls) "NULL"
+
+proc vtab_command {method args} {
+  global G
+
+  switch -- $method {
+    xConnect {
+      return "CREATE TABLE t1($G(cols))"
+    }
+
+    xBestIndex {
+      set hdl [lindex $args 0]
+      set clist [$hdl constraints]
+      set orderby [$hdl orderby]
+      
+      #puts $clist
+      set W [list]
+      set U [list]
+
+      set i 0
+      for {set idx 0} {$idx < [llength $clist]} {incr idx} {
+        array set c [lindex $clist $idx]
+        if {$c(op)=="eq" && $c(usable)} {
+          lappend W "[lindex $G(collist) $c(column)] = %$i%"
+          lappend U use $idx
+          incr i
+        }
+      }
+
+      if {$W==""} {
+        set sql "SELECT rowid, * FROM t1"
+      } else {
+        set sql "SELECT rowid, * FROM t1 WHERE [join $W { AND }]"
+      }
+
+      return [concat [list idxstr $sql] $U]
+    }
+
+    xFilter {
+      foreach {idxnum idxstr vals} $args {}
+
+      set map [list]
+      for {set i 0} {$i < [llength $vals]} {incr i} {
+        lappend map "%$i%" 
+        set v [lindex $vals $i]
+        if {[string is integer $v]} { 
+          lappend map $v 
+        } else {
+          lappend map "'$v'"
+        }
+      }
+      set sql [string map $map $idxstr]
+
+      #puts "SQL: $sql"
+      return [list sql $sql]
+    }
+  }
+
+  return {}
+}
+
+db close
+forcedelete test.db
+sqlite3 db test.db
+register_tcl_module db
+
+do_execsql_test 3.1 "
+  CREATE TABLE t1($G(cols));
+  INSERT INTO t1 VALUES(1, 0, 'ValueA');
+  INSERT INTO t1 VALUES(2, 0, 'ValueA');
+  INSERT INTO t1 VALUES(3, 0, 'ValueB');
+  INSERT INTO t1 VALUES(4, 0, 'ValueB');
+"
+
+do_execsql_test 3.2 {
+  CREATE VIRTUAL TABLE VirtualTableA USING tcl(vtab_command);
+  CREATE VIRTUAL TABLE VirtualTableB USING tcl(vtab_command);
+}
+
+do_execsql_test 3.3 { SELECT primarykey FROM VirtualTableA } {1 2 3 4}
+
+do_execsql_test 3.4 {
+  SELECT * FROM 
+  VirtualTableA a CROSS JOIN VirtualTableB b ON b.PrimaryKey=a.PrimaryKey
+  WHERE a.ColumnA IN ('ValueA', 'ValueB') AND a.FlagA=0
+} {
+  1 0 ValueA 1 0 ValueA
+  2 0 ValueA 2 0 ValueA
+  3 0 ValueB 3 0 ValueB
+  4 0 ValueB 4 0 ValueB
+}
+
+do_execsql_test 3.5 {
+  SELECT * FROM 
+  VirtualTableA a CROSS JOIN VirtualTableB b ON b.PrimaryKey=a.PrimaryKey
+  WHERE a.FlagA=0 AND a.ColumnA IN ('ValueA', 'ValueB') 
+} {
+  1 0 ValueA 1 0 ValueA
+  2 0 ValueA 2 0 ValueA
+  3 0 ValueB 3 0 ValueB
+  4 0 ValueB 4 0 ValueB
+}
+
+#-------------------------------------------------------------------------
+# If there is an IN(..) condition in the WHERE clause of a query on a
+# virtual table, the xBestIndex method is first invoked with the IN(...)
+# represented by a "usable" SQLITE_INDEX_CONSTRAINT_EQ constraint. If
+# the virtual table elects to use the IN(...) constraint, then the 
+# xBestIndex method is invoked again, this time with the IN(...) marked
+# as "not usable". Depending on the relative costs of the two plans as
+# defined by the virtual table implementation, and the cardinality of the
+# IN(...) operator, SQLite chooses the most efficient plan. 
+#
+# At one point the second invocation of xBestIndex() was only being made
+# for join queries. The following tests check that this problem has been
+# fixed.
+#
+proc vtab_command {method args} {
+  switch -- $method {
+    xConnect {
+      return "CREATE TABLE t1(a, b, c, d)"
+    }
+
+    xBestIndex {
+      set hdl [lindex $args 0]
+      set clist [$hdl constraints]
+      set orderby [$hdl orderby]
+      
+      lappend ::bestindex_calls $clist
+      set ret "cost 1000000 idxnum 555"
+      for {set i 0} {$i < [llength $clist]} {incr i} {
+        array set C [lindex $clist $i]
+        if {$C(usable)} { 
+          lappend ret use $i 
+        }
+      }
+      return $ret
+    }
+  }
+  return {}
+}
+
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE x1 USING tcl(vtab_command);
+} {}
+
+do_test 4.1 {
+  set ::bestindex_calls [list]
+  execsql {
+    SELECT * FROM x1 WHERE a=? AND b BETWEEN ? AND ? AND c IN (1, 2, 3, 4);
+  }
+  set ::bestindex_calls
+} [list \
+    [list {op eq column 0 usable 1} \
+          {op eq column 2 usable 1} \
+          {op ge column 1 usable 1} \
+          {op le column 1 usable 1} \
+    ] \
+    [list {op eq column 0 usable 1} \
+          {op eq column 2 usable 0} \
+          {op ge column 1 usable 1} \
+          {op le column 1 usable 1}
+    ]
+]
+
+do_catchsql_test 5.0 {
+  SELECT * FROM tcl('abc');
+} {1 {wrong number of arguments}}
+
+finish_test
diff --git a/test/bestindex2.test b/test/bestindex2.test
new file mode 100644
index 0000000000000000000000000000000000000000..c47a721cf6ac81fd5e9868513ef5cb09b5ea5d89
--- /dev/null
+++ b/test/bestindex2.test
@@ -0,0 +1,145 @@
+# 2016 March 3
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix bestindex2
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+#-------------------------------------------------------------------------
+# Virtual table callback for table named $tbl, with the columns specified
+# by list argument $cols. e.g. if the function is invoked as:
+#
+#   vtab_cmd t1 {a b c} ...
+#
+# The table created is:
+#
+#      "CREATE TABLE t1 (a, b, c)"
+#
+# The tables xBestIndex method behaves as if all possible combinations of
+# "=" constraints (but no others) may be optimized. The cost of a full table
+# scan is:
+#
+#      "WHERE 1"                "cost 1000000 rows 1000000"
+#
+# If one or more "=" constraints are in use, the cost and estimated number
+# of rows returned are both is (11 - nCons)*1000, where nCons is the number
+# of constraints used. e.g.
+#
+#   "WHERE a=? AND b=?"    ->   "cost  900 rows  900"
+#   "WHERE c=? AND b<?"    ->   "cost 1000 rows 1000"
+#  
+proc vtab_cmd {tbl cols method args} {
+  switch -- $method {
+    xConnect {
+      return "CREATE TABLE $tbl ([join $cols ,])"
+    }
+    xBestIndex {
+      set hdl [lindex $args 0]
+      set clist [$hdl constraints]
+      set orderby [$hdl orderby]
+      set mask [$hdl mask]
+
+      set cons [list]
+      set used [list]
+
+      for {set i 0} {$i < [llength $clist]} {incr i} {
+        array unset C
+        array set C [lindex $clist $i]
+        if {$C(op)=="eq" && $C(usable) && [lsearch $cons $C(column)]<0} {
+          lappend used use $i
+          lappend cons $C(column)
+        }
+      }
+
+      set nCons [llength $cons]
+      if {$nCons==0} {
+        return "cost 1000000 rows 1000000"
+      } else {
+        set cost [expr (11-$nCons) * 1000]
+        set ret [concat $used "cost $cost rows $cost"]
+
+        set txt [list]
+        foreach c $cons { lappend txt "[lindex $cols $c]=?" }
+        lappend ret idxstr "indexed([join $txt { AND }])"
+
+        return $ret
+      }
+    }
+  }
+  return ""
+}
+
+register_tcl_module db
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING tcl("vtab_cmd t1 {a b}");
+  CREATE VIRTUAL TABLE t2 USING tcl("vtab_cmd t2 {c d}");
+  CREATE VIRTUAL TABLE t3 USING tcl("vtab_cmd t3 {e f}");
+}
+
+do_eqp_test 1.1 {
+  SELECT * FROM t1 WHERE a='abc'
+} {SCAN t1 VIRTUAL TABLE INDEX 0:indexed(a=?)}
+
+do_eqp_test 1.2 {
+  SELECT * FROM t1 WHERE a='abc' AND b='def'
+} {SCAN t1 VIRTUAL TABLE INDEX 0:indexed(a=? AND b=?)}
+
+do_eqp_test 1.3 {
+  SELECT * FROM t1 WHERE a='abc' AND a='def'
+} {SCAN t1 VIRTUAL TABLE INDEX 0:indexed(a=?)}
+
+do_eqp_test 1.4 {
+  SELECT * FROM t1,t2 WHERE c=a
+} {
+  QUERY PLAN
+  |--SCAN t1 VIRTUAL TABLE INDEX 0:
+  `--SCAN t2 VIRTUAL TABLE INDEX 0:indexed(c=?)
+}
+
+do_eqp_test 1.5 {
+  SELECT * FROM t1, t2 CROSS JOIN t3 WHERE t2.c = +t1.b AND t3.e=t2.d
+} {
+  QUERY PLAN
+  |--SCAN t1 VIRTUAL TABLE INDEX 0:
+  |--SCAN t2 VIRTUAL TABLE INDEX 0:indexed(c=?)
+  `--SCAN t3 VIRTUAL TABLE INDEX 0:indexed(e=?)
+}
+
+do_eqp_test 1.6 {
+  SELECT * FROM t1, t2, t3 WHERE t2.c = +t1.b AND t3.e = t2.d
+} {
+  QUERY PLAN
+  |--SCAN t1 VIRTUAL TABLE INDEX 0:
+  |--SCAN t2 VIRTUAL TABLE INDEX 0:indexed(c=?)
+  `--SCAN t3 VIRTUAL TABLE INDEX 0:indexed(e=?)
+}
+
+do_execsql_test 1.7.1 {
+  CREATE TABLE x1(a, b);
+}
+do_eqp_test 1.7.2 {
+  SELECT * FROM x1 CROSS JOIN t1, t2, t3 
+    WHERE t1.a = t2.c AND t1.b = t3.e
+} {
+  QUERY PLAN
+  |--SCAN x1
+  |--SCAN t1 VIRTUAL TABLE INDEX 0:
+  |--SCAN t2 VIRTUAL TABLE INDEX 0:indexed(c=?)
+  `--SCAN t3 VIRTUAL TABLE INDEX 0:indexed(e=?)
+}
+
+finish_test
diff --git a/test/bestindex3.test b/test/bestindex3.test
new file mode 100644
index 0000000000000000000000000000000000000000..6aa3321c7b56bf57f9ec669143459886e2ae2700
--- /dev/null
+++ b/test/bestindex3.test
@@ -0,0 +1,185 @@
+# 2016 May 29
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix bestindex3
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+#-------------------------------------------------------------------------
+# Virtual table callback for a virtual table named $tbl.
+#
+# The table created is:
+#
+#      "CREATE TABLE t1 (a, b, c)"
+#
+# This virtual table supports both LIKE and = operators on all columns.
+#  
+proc vtab_cmd {bOmit method args} {
+  switch -- $method {
+    xConnect {
+      return "CREATE TABLE t1(a, b, c)"
+    }
+
+    xBestIndex {
+      set hdl [lindex $args 0]
+      set clist [$hdl constraints]
+      set orderby [$hdl orderby]
+      set mask [$hdl mask]
+
+      set ret [list]
+      set use use
+      if {$bOmit} {set use omit}
+
+      for {set i 0} {$i < [llength $clist]} {incr i} {
+        array unset C
+        array set C [lindex $clist $i]
+        if {$C(usable) && ($C(op)=="like" || $C(op)=="eq")} {
+          lappend ret $use $i
+          lappend ret idxstr 
+          lappend ret "[lindex {a b c} $C(column)] [string toupper $C(op)] ?"
+          break
+        }
+      }
+
+      if {$ret==""} {
+        lappend ret cost 1000000 rows 1000000
+      } else {
+        lappend ret cost 100 rows 10
+      }
+      return $ret
+    }
+
+    xFilter {
+      foreach {idxnum idxstr param} $args {}
+      set where ""
+      if {$bOmit && $idxstr != ""} {
+        set where " WHERE [string map [list ? '$param' EQ =] $idxstr]"
+      }
+      return [list sql "SELECT rowid, * FROM ttt$where"]
+    }
+  }
+  return ""
+}
+
+register_tcl_module db
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING tcl("vtab_cmd 0");
+}
+
+do_eqp_test 1.1 {
+  SELECT * FROM t1 WHERE a LIKE 'abc';
+} {SCAN t1 VIRTUAL TABLE INDEX 0:a LIKE ?}
+
+do_eqp_test 1.2 {
+  SELECT * FROM t1 WHERE a = 'abc';
+} {SCAN t1 VIRTUAL TABLE INDEX 0:a EQ ?}
+
+do_eqp_test 1.3 {
+  SELECT * FROM t1 WHERE a = 'abc' OR b = 'def';
+} {
+  QUERY PLAN
+  `--MULTI-INDEX OR
+     |--INDEX 1
+     |  `--SCAN t1 VIRTUAL TABLE INDEX 0:a EQ ?
+     `--INDEX 2
+        `--SCAN t1 VIRTUAL TABLE INDEX 0:b EQ ?
+}
+
+do_eqp_test 1.4 {
+  SELECT * FROM t1 WHERE a LIKE 'abc%' OR b = 'def';
+} {
+  QUERY PLAN
+  `--MULTI-INDEX OR
+     |--INDEX 1
+     |  `--SCAN t1 VIRTUAL TABLE INDEX 0:a LIKE ?
+     `--INDEX 2
+        `--SCAN t1 VIRTUAL TABLE INDEX 0:b EQ ?
+}
+
+do_execsql_test 1.5 {
+  CREATE TABLE ttt(a, b, c);
+
+  INSERT INTO ttt VALUES(1, 'two',   'three');
+  INSERT INTO ttt VALUES(2, 'one',   'two');
+  INSERT INTO ttt VALUES(3, 'three', 'one');
+  INSERT INTO ttt VALUES(4, 'y',     'one');
+  INSERT INTO ttt VALUES(5, 'x',     'two');
+  INSERT INTO ttt VALUES(6, 'y',     'three');
+}
+
+foreach omit {0 1} {
+  do_execsql_test 1.6.$omit.0 "
+    DROP TABLE t1;
+    CREATE VIRTUAL TABLE t1 USING tcl('vtab_cmd $omit');
+  "
+  do_execsql_test 1.6.$omit.1 { 
+    SELECT rowid FROM t1 WHERE c LIKE 'o%'
+  } {3 4}
+
+  do_execsql_test 1.6.$omit.2 { 
+    SELECT rowid FROM t1 WHERE c LIKE 'o%' OR b='y'
+  } {3 4 6}
+
+  do_execsql_test 1.6.$omit.3 { 
+    SELECT rowid FROM t1 WHERE c = 'three' OR c LIKE 'o%'
+  } {1 6 3 4}
+}
+
+#-------------------------------------------------------------------------
+# Test the same pattern works with ordinary tables.
+#
+# This test does not work if the ICU extension is enabled. ICU overrides
+# LIKE - and this optimization only works with the built-in LIKE function.
+#
+ifcapable !icu {
+  do_execsql_test 2.1 {
+    CREATE TABLE t2(x TEXT COLLATE nocase, y TEXT);
+    CREATE INDEX t2x ON t2(x COLLATE nocase);
+    CREATE INDEX t2y ON t2(y);
+  }
+
+  do_eqp_test 2.2 {
+    SELECT * FROM t2 WHERE x LIKE 'abc%' OR y = 'def'
+  } [string map {"\n  " \n} {
+    QUERY PLAN
+    `--MULTI-INDEX OR
+       |--INDEX 1
+       |  `--SEARCH t2 USING INDEX t2x (x>? AND x<?)
+       `--INDEX 2
+          `--SEARCH t2 USING INDEX t2y (y=?)
+  }]
+}
+
+#-------------------------------------------------------------------------
+# Test that any PRIMARY KEY within a sqlite3_decl_vtab() CREATE TABLE 
+# statement is currently ignored.
+#
+proc vvv_command {method args} {
+  switch -- $method {
+    xConnect { return "CREATE TABLE t1(a PRIMARY KEY, b, c)" }
+  }
+}
+proc yyy_command {method args} {
+  switch -- $method {
+    xConnect { return "CREATE TABLE t1(a, b, c, PRIMARY KEY(a, b))" }
+  }
+}
+
+do_execsql_test 3.1 { CREATE VIRTUAL TABLE t3 USING tcl('vvv_command') }
+do_execsql_test 3.2 { CREATE VIRTUAL TABLE t4 USING tcl('yyy_command') }
+
+finish_test
diff --git a/test/bestindex4.test b/test/bestindex4.test
new file mode 100644
index 0000000000000000000000000000000000000000..483656d3fc23d51bc332e61a3eadb5def974a3cc
--- /dev/null
+++ b/test/bestindex4.test
@@ -0,0 +1,182 @@
+# 2016 November 11
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# Test the virtual table interface. In particular the xBestIndex
+# method.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix bestindex4
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+#-------------------------------------------------------------------------
+# Virtual table callback for a virtual table named $tbl.
+#
+# The table created is:
+#
+#      "CREATE TABLE t1 (id, host, class)"
+#
+# The virtual table supports == operators on a subset of its columns. The
+# exact subset depends on the value of bitmask paramater $param.
+#
+#   0x01 - == on "id" supported
+#   0x02 - == on "host" supported
+#   0x04 - == on "class" supported
+#
+# $param also supports the following bits:
+#
+#   0x08 - ignore the "usable" flag (malfunction)
+#
+#
+#  
+proc vtab_cmd {param method args} {
+  switch -- $method {
+    xConnect {
+      return "CREATE TABLE t1(id TEXT, host TEXT, class TEXT)"
+    }
+
+    xBestIndex {
+      set hdl [lindex $args 0]
+      set clist [$hdl constraints]
+      set orderby [$hdl orderby]
+      set mask [$hdl mask]
+
+      set ret [list]
+
+      set use use
+
+
+      for {set i 0} {$i < [llength $clist]} {incr i} {
+        array unset C
+        array set C [lindex $clist $i]
+        if { ($C(usable) || ($param & 0x08)) 
+          && $C(op)=="eq" && ($param & 1<<$C(column))
+        } {
+          lappend ret $use $i
+          break
+        }
+      }
+
+      set score 1000000
+      if {$ret!=""} {
+        set score [expr $score / [llength $ret]]
+      }
+      lappend ret cost $score rows $score
+
+      return $ret
+    }
+
+    xFilter {
+    }
+  }
+  return ""
+}
+
+register_tcl_module db
+
+for {set param1 0} {$param1<16} {incr param1} {
+  for {set param2 0} {$param2<16} {incr param2} {
+    reset_db
+    register_tcl_module db
+    do_execsql_test 1.$param1.$param2.1 "
+      CREATE VIRTUAL TABLE t1 USING tcl('vtab_cmd $param1');
+      CREATE VIRTUAL TABLE t2 USING tcl('vtab_cmd $param2');
+    "
+
+    foreach {tn sql} {
+      2 "select t1.id as ID from t1, t2 where t1.id=t2.host and t2.class='xx'"
+      3 {
+        select t1.id as ID from t1, t2 where t2.class ='xx' and t2.id = t1.host
+      }
+      4 {
+        select t1.id as ID from t1, t2 where t1.host = t2.id and t2. class ='xx'
+      }
+    } {
+
+      if {($param1 & 0x08)==0 && ($param2 & 0x08)==0} {
+
+        do_execsql_test 1.$param1.$param2.$tn.a $sql {}
+
+      } else {
+        do_test 1.$param1.$param2.$tn.b {
+          catchsql $sql
+            set {} {}
+        } {}
+      }
+    }
+
+  }
+}
+
+#-------------------------------------------------------------------------
+# Test that a parameter passed to a table-valued function cannot be
+# used to drive an index. i.e. that in the following:
+#
+#   SELECT * FROM tbl, vtab(tbl.x);
+#
+# The implicit constraint "tbl.x = vtab.hidden" is not optimized using
+# an index on tbl.x.
+#
+reset_db
+register_tcl_module db
+proc vtab_command {method args} {
+  switch -- $method {
+    xConnect {
+      return "CREATE TABLE t1(a, b, c, d HIDDEN)"
+    }
+
+    xBestIndex {
+      set hdl [lindex $args 0]
+      set clist [$hdl constraints]
+      set orderby [$hdl orderby]
+      set mask [$hdl mask]
+      
+      if {[llength $clist]!=1} { error "unexpected constraint list" }
+      catch { array unset C }
+      array set C [lindex $clist 0]
+      if {$C(usable)} {
+        return [list omit 0 idxnum 555 rows 10 cost 100]
+      }
+      return [list cost 100000000]
+    }
+
+  }
+
+  return {}
+}
+
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE x1 USING tcl(vtab_command);
+  CREATE TABLE t1 (x INT PRIMARY KEY);
+} {}
+
+do_eqp_test 2.1 {
+  SELECT * FROM t1, x1 WHERE x1.d=t1.x;
+} {
+  QUERY PLAN
+  |--SCAN x1 VIRTUAL TABLE INDEX 0:
+  `--SEARCH t1 USING COVERING INDEX sqlite_autoindex_t1_1 (x=?)
+}
+
+do_eqp_test 2.2 {
+  SELECT * FROM t1, x1(t1.x)
+} {
+  QUERY PLAN
+  |--SCAN t1
+  `--SCAN x1 VIRTUAL TABLE INDEX 555:
+}
+
+
+finish_test
diff --git a/test/bestindex5.test b/test/bestindex5.test
new file mode 100644
index 0000000000000000000000000000000000000000..35df58a98e6001f3ad8b88b12c3c302cb208d441
--- /dev/null
+++ b/test/bestindex5.test
@@ -0,0 +1,252 @@
+# 2017 September 10
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# Test the virtual table interface. In particular the xBestIndex
+# method.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix bestindex5
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+#-------------------------------------------------------------------------
+# Virtual table callback for a virtual table named $tbl.
+#  
+proc vtab_cmd {method args} {
+
+  set binops(ne)    !=
+  set binops(eq)    =
+  set binops(isnot) "IS NOT"
+  set binops(is)    "IS"
+
+  set unops(isnotnull) "IS NOT NULL"
+  set unops(isnull)    "IS NULL"
+
+  set cols(0) a
+  set cols(1) b
+  set cols(2) c
+
+  switch -- $method {
+    xConnect {
+      return "CREATE TABLE t1(a, b, c)"
+    }
+
+    xBestIndex {
+      set hdl [lindex $args 0]
+      set clist [$hdl constraints]
+      set orderby [$hdl orderby]
+      set mask [$hdl mask]
+
+      set cost 1000000.0
+      set ret [list]
+      set str [list]
+
+      set v 0
+      for {set i 0} {$i < [llength $clist]} {incr i} {
+        array unset C
+        array set C [lindex $clist $i]
+        if {$C(usable)} {
+          if {[info exists binops($C(op))]} {
+            lappend ret omit $i
+            lappend str "$cols($C(column)) $binops($C(op)) %$v%"
+            incr v
+            set cost [expr $cost / 2]
+          }
+          if {[info exists unops($C(op))]} {
+            lappend ret omit $i
+            lappend str "$cols($C(column)) $unops($C(op))"
+            incr v
+            set cost [expr $cost / 2]
+          }
+        }
+      }
+
+      lappend ret idxstr [join $str " AND "]
+      lappend ret cost $cost
+      return $ret
+    }
+
+    xFilter {
+      set q [lindex $args 1]
+      set a [lindex $args 2]
+      for {set v 0} {$v < [llength $a]} {incr v} {
+        set val [lindex $a $v]
+        set q [string map [list %$v% '$val'] $q]
+      }
+      if {$q==""} { set q 1 }
+      lappend ::xFilterQueries "WHERE $q"
+      return [list sql "SELECT rowid, * FROM t1x WHERE $q"]
+    }
+  }
+  return ""
+}
+
+proc vtab_simple {method args} {
+  switch -- $method {
+    xConnect {
+      return "CREATE TABLE t2(x)"
+    }
+    xBestIndex {
+      return [list cost 999999.0]
+    }
+    xFilter {
+      return [list sql "SELECT rowid, * FROM t2x"]
+    }
+  }
+  return ""
+}
+
+register_tcl_module db
+
+proc do_vtab_query_test {tn query result} {
+  set ::xFilterQueries [list]
+  uplevel [list
+    do_test $tn [string map [list %QUERY% $query] {
+      set r [execsql {%QUERY%}]
+      set r [concat $::xFilterQueries $r]
+      set r
+    }] [list {*}$result]
+  ]
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING tcl('vtab_cmd');
+  CREATE TABLE t1x(a INTEGER, b TEXT, c REAL);
+  INSERT INTO t1x VALUES(1, 2, 3);
+  INSERT INTO t1x VALUES(4, 5, 6);
+  INSERT INTO t1x VALUES(7, 8, 9);
+
+  CREATE VIRTUAL TABLE t2 USING tcl('vtab_simple');
+  CREATE TABLE t2x(x INTEGER);
+  INSERT INTO t2x VALUES(1);
+}
+
+do_vtab_query_test 1.1 { SELECT * FROM t1 WHERE a!='hello'; } {
+  "WHERE a != 'hello'"
+  1 2 3.0 4 5 6.0 7 8 9.0
+}
+
+do_vtab_query_test 1.2.1 { SELECT * FROM t1 WHERE b!=8 } {
+  "WHERE b != '8'"
+  1 2 3.0 4 5 6.0
+}
+do_vtab_query_test 1.2.2 { SELECT * FROM t1 WHERE 8!=b } {
+  "WHERE b != '8'"
+  1 2 3.0 4 5 6.0
+}
+
+do_vtab_query_test 1.3 { SELECT * FROM t1 WHERE c IS NOT 3 } {
+  "WHERE c IS NOT '3'"
+  4 5 6.0 7 8 9.0
+}
+do_vtab_query_test 1.3.2 { SELECT * FROM t1 WHERE 3 IS NOT c } {
+  "WHERE c IS NOT '3'"
+  4 5 6.0 7 8 9.0
+}
+
+do_vtab_query_test 1.4.1 { SELECT * FROM t1, t2 WHERE x != a } {
+  "WHERE a != '1'"
+  4 5 6.0 1   7 8 9.0 1
+}
+do_vtab_query_test 1.4.2 { SELECT * FROM t1, t2 WHERE a != x } {
+  "WHERE a != '1'"
+  4 5 6.0 1   7 8 9.0 1
+}
+
+do_vtab_query_test 1.5.1 { SELECT * FROM t1 WHERE a IS NOT NULL } {
+  "WHERE a IS NOT NULL"
+  1 2 3.0 4 5 6.0 7 8 9.0
+}
+do_vtab_query_test 1.5.2 { SELECT * FROM t1 WHERE NULL IS NOT a } {
+  "WHERE a IS NOT ''"
+  1 2 3.0 4 5 6.0 7 8 9.0
+}
+
+do_vtab_query_test 1.6.1 { SELECT * FROM t1 WHERE a IS NULL } {
+  "WHERE a IS NULL"
+}
+
+do_vtab_query_test 1.6.2 { SELECT * FROM t1 WHERE NULL IS a } {
+  "WHERE a IS ''"
+}
+
+do_vtab_query_test 1.7.1 { SELECT * FROM t1 WHERE (a, b) IS (1, 2) } {
+  "WHERE a IS '1' AND b IS '2'"
+  1 2 3.0
+}
+do_vtab_query_test 1.7.2 { SELECT * FROM t1 WHERE (5, 4) IS (b, a) } {
+  {WHERE b IS '5' AND a IS '4'} 
+  4 5 6.0
+}
+
+#---------------------------------------------------------------------
+do_execsql_test 2.0.0 {
+  DELETE FROM t1x;
+  INSERT INTO t1x VALUES('a', 'b', 'c');
+}
+do_execsql_test 2.0.1 { SELECT * FROM t1 } {a b c}
+do_execsql_test 2.0.2 { SELECT * FROM t1 WHERE (a, b) != ('a', 'b'); } {}
+
+do_execsql_test 2.1.0 {
+  DELETE FROM t1x;
+  INSERT INTO t1x VALUES(7, 8, 9);
+}
+do_execsql_test 2.1.1 { SELECT * FROM t1 } {7 8 9.0}
+do_execsql_test 2.1.2 { SELECT * FROM t1 WHERE (a, b) != (7, '8') } {}
+do_execsql_test 2.1.3 { SELECT * FROM t1 WHERE a!=7 OR b!='8' }
+do_execsql_test 2.1.4 { SELECT * FROM t1 WHERE a!=7 OR b!='8' }
+
+
+do_execsql_test 2.2.1 {
+  CREATE TABLE t3(a INTEGER, b TEXT);
+  INSERT INTO t3 VALUES(45, 46);
+}
+do_execsql_test 2.2.2 { SELECT * FROM t3 WHERE (a, b) != (45, 46); }
+do_execsql_test 2.2.3 { SELECT * FROM t3 WHERE (a, b) != ('45', '46'); }
+do_execsql_test 2.2.4 { SELECT * FROM t3 WHERE (a, b) == (45, 46); } {45 46}
+do_execsql_test 2.2.5 { SELECT * FROM t3 WHERE (a, b) == ('45', '46'); } {45 46}
+
+#---------------------------------------------------------------------
+# Test the != operator on a virtual table with column affinities.
+#
+proc vtab_simple_integer {method args} {
+  switch -- $method {
+    xConnect {
+      return "CREATE TABLE t4(x INTEGER)"
+    }
+    xBestIndex {
+      return [list cost 999999.0]
+    }
+    xFilter {
+      return [list sql "SELECT rowid, * FROM t4x"]
+    }
+  }
+  return ""
+}
+
+do_execsql_test 3.0 {
+  CREATE TABLE t4x(a INTEGER);
+  INSERT INTO t4x VALUES(245);
+  CREATE VIRTUAL TABLE t4 USING tcl('vtab_simple_integer');
+}
+do_execsql_test 3.1 { SELECT rowid, * FROM t4 WHERE x=245; } {1 245}
+do_execsql_test 3.2 { SELECT rowid, * FROM t4 WHERE x='245'; } {1 245}
+do_execsql_test 3.3 { SELECT rowid, * FROM t4 WHERE x!=245; } {}
+do_execsql_test 3.4 { SELECT rowid, * FROM t4 WHERE x!='245'; } {}
+
+do_execsql_test 3.5 { SELECT rowid, * FROM t4 WHERE rowid!=1 OR x!='245'; } {}
+
+
+finish_test
diff --git a/test/bestindex6.test b/test/bestindex6.test
new file mode 100644
index 0000000000000000000000000000000000000000..8926ec4a1110c854509447ee6c0d5991aa7a0287
--- /dev/null
+++ b/test/bestindex6.test
@@ -0,0 +1,113 @@
+# 2018-09-09
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix bestindex6
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+register_tcl_module db
+
+proc vtab_command {src method args} {
+  switch -- $method {
+    xConnect {
+      return [db one {SELECT sql FROM sqlite_master where name = $src}]
+    }
+
+    xBestIndex {
+      set hdl [lindex $args 0]
+      set clist [$hdl constraints]
+      set orderby [$hdl orderby]
+      set mask [$hdl mask]
+
+      set wlist 1
+
+      set iCons 0
+      set ret [list]
+      foreach cons $clist {
+        catch { array unset C }
+        array set C $cons
+
+        if {$C(usable)} {
+          set col [db one {
+            SELECT name FROM pragma_table_info($src) WHERE cid=$C(column)
+          }]
+          switch $C(op) {
+            isnull {
+              lappend wlist "$col IS NULL"
+              lappend ret omit $iCons
+            }
+            eq {
+              lappend wlist "$col = %$iCons%"
+              lappend ret omit $iCons
+            }
+          }
+        }
+        incr iCons
+      }
+      #puts "xBestIndex: $ret"
+      lappend ret idxStr [join $wlist " AND "]
+      return $ret
+    }
+
+    xFilter {
+      foreach {idxnum idxstr aa} $args {}
+      set map [list]
+      for {set iCons 0} {$iCons < [llength $aa]} {incr iCons} {
+        lappend map %$iCons% [lindex $aa $iCons]
+      }
+      set ret [list sql \
+          "SELECT rowid, * FROM $src WHERE [string map $map $idxstr]"
+      ]
+      # puts "xFilter: $ret"
+      return $ret
+    }
+
+  }
+
+  return {}
+}
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(id int, value text);
+  CREATE TABLE t2(ctx int, id int, value text); 
+
+  INSERT INTO t1 VALUES(1,'try');
+  INSERT INTO t2 VALUES(1,1,'good');
+  INSERT INTO t2 VALUES(2,2,'evil');
+
+  CREATE VIRTUAL TABLE vt1 USING tcl(vtab_command t1);
+  CREATE VIRTUAL TABLE vt2 USING tcl(vtab_command t2);
+}
+
+do_execsql_test 1.1 {
+  select * from t2 left join t1 on t1.id=t2.ctx where t1.value is null;
+} {2 2 evil {} {}}
+
+do_execsql_test 1.2 {
+  select * from vt2 left join vt1 on vt1.id=vt2.ctx where vt1.value is null; 
+} {2 2 evil {} {}}
+
+unset -nocomplain xxx
+do_execsql_test 1.3 {
+  select * from vt2 left join vt1 on vt1.id=vt2.ctx where vt1.value is $xxx; 
+} {2 2 evil {} {}}
+
+do_execsql_test 1.4 {
+  select * from t2 left join vt1 on vt1.id=t2.ctx where vt1.value = 3
+} {}
+
+finish_test
diff --git a/test/bestindex7.test b/test/bestindex7.test
new file mode 100644
index 0000000000000000000000000000000000000000..a84b9efe9e42c73d711cb1379698e3c04dcbd1d3
--- /dev/null
+++ b/test/bestindex7.test
@@ -0,0 +1,82 @@
+# 2020-01-29
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix bestindex7
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+register_tcl_module db
+
+proc vtab_command {src method args} {
+  switch -- $method {
+    xConnect {
+      return "CREATE TABLE xxx(a)"
+    }
+
+    xBestIndex {
+      set hdl [lindex $args 0]
+      set clist [$hdl constraints]
+      set orderby [$hdl orderby]
+      set mask [$hdl mask]
+      
+      set iCons 0
+      set ret [list]
+      foreach cons $clist {
+        catch { array unset C }
+        array set C $cons
+        if {$C(usable)} {
+          lappend ret use $iCons
+        }
+        incr iCons
+      }
+      return $ret
+    }
+
+    xFilter {
+      return [list sql "SELECT rowid, x FROM $src"]
+    }
+
+  }
+
+  return {}
+}
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(x);
+  INSERT INTO t1 VALUES(0), (2);
+  CREATE VIRTUAL TABLE vt1 USING tcl(vtab_command t1);
+}
+
+do_execsql_test 1.1 { select * from vt1 } {0 2}
+do_execsql_test 1.2 { select * from vt1 WHERE a=0 } {0}
+do_execsql_test 1.3 { select * from vt1 WHERE a=1 } {}
+do_execsql_test 1.4 { select * from vt1 WHERE a=1 OR a=0} {0}
+
+do_execsql_test 1.5 {
+  UPDATE t1 SET x=NULL WHERE x=2;
+}
+
+do_execsql_test 1.6 { select * from vt1 } {0 {}}
+do_execsql_test 1.7 { select * from vt1 WHERE a=0 } {0}
+do_execsql_test 1.8 { select * from vt1 WHERE a=1 } {}
+do_execsql_test 1.9 { select * from vt1 WHERE a=1 OR a=0} {0}
+do_execsql_test 1.10 { select * from vt1 WHERE a IN (2) } {}
+do_execsql_test 1.10 { select * from vt1 WHERE a IN (0,1,2,3) } {0}
+do_execsql_test 1.11 { select * from vt1 WHERE a IN (0, NULL) } {0}
+do_execsql_test 1.12 { select * from vt1 WHERE a IN (NULL) } {}
+
+finish_test
diff --git a/test/bestindex8.test b/test/bestindex8.test
new file mode 100644
index 0000000000000000000000000000000000000000..3ed7f6703e94444268061bf968fd891e6adfdafb
--- /dev/null
+++ b/test/bestindex8.test
@@ -0,0 +1,463 @@
+# 2020-01-29
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix bestindex8
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+register_tcl_module db
+
+proc vtab_command {src method args} {
+  switch -- $method {
+    xConnect {
+      return "CREATE TABLE xxx(a, b)"
+    }
+
+    xBestIndex {
+      set hdl [lindex $args 0]
+      set clist [$hdl constraints]
+      set orderby [$hdl orderby]
+      lappend ::lBestIndexDistinct [$hdl distinct]
+
+      #puts "ORDERBY: $orderby" 
+      set iCons 0
+      set ret [list]
+      foreach cons $clist {
+        catch { array unset C }
+        array set C $cons
+        if {$C(usable)} {
+          lappend ret use $iCons
+        }
+        incr iCons
+      }
+      if {$orderby=="{column 0 desc 0} {column 1 desc 0}"
+       || $orderby=="{column 0 desc 0}"
+      } {
+        lappend ret orderby 1
+        lappend ret idxnum 1
+        set ::lOrderByConsumed 1
+      }
+      return $ret
+    }
+
+    xFilter {
+      set idxnum [lindex $args 0]
+      if {$idxnum} {
+        return [list sql "SELECT rowid, a, b FROM $src order by 2, 3"]
+      }
+      return [list sql "SELECT rowid, a, b FROM $src"]
+    }
+
+  }
+
+  return {}
+}
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b);
+  CREATE INDEX i1 ON t1(a, b);
+  INSERT INTO t1 VALUES('a', 'b'), ('c', 'd');
+  INSERT INTO t1 VALUES('a', 'b'), ('c', 'd');
+  CREATE VIRTUAL TABLE vt1 USING tcl(vtab_command t1);
+
+  CREATE TABLE t0(c0);
+  INSERT INTO t0(c0) VALUES (1), (0);
+}
+
+foreach {tn sql bDistinct idxinsert bConsumed res} {
+  1 "SELECT a, b FROM vt1"                              0 0 0 {a b c d a b c d}
+  2 "SELECT DISTINCT a, b FROM vt1"                     2 1 1 {a b c d}
+  3 "SELECT DISTINCT a FROM vt1"                        2 1 1 {a c}
+  4 "SELECT DISTINCT b FROM vt1"                        2 1 0 {b d}
+  5 "SELECT DISTINCT b FROM vt1 ORDER BY a"             0 1 1 {b d}
+  6 "SELECT DISTINCT t0.c0 FROM vt1, t0 ORDER BY vt1.a" 0 1 1 {1 0}
+  7 "SELECT DISTINCT a, b FROM vt1 ORDER BY a, b"       3 0 1 {a b c d}
+  8 "SELECT DISTINCT a, b FROM vt1 ORDER BY a"          0 1 1 {a b c d}
+  9 "SELECT DISTINCT a FROM vt1 ORDER BY a, b"          0 1 1 {a c}
+
+ 10 "SELECT DISTINCT a, b FROM vt1 WHERE b='b'"         2 1 1 {a b}
+ 11 "SELECT DISTINCT a, b FROM vt1 WHERE +b='b'"        2 1 1 {a b}
+} {
+  set ::lBestIndexDistinct ""
+  set ::lOrderByConsumed 0
+  do_execsql_test 1.$tn.1 $sql $res
+  do_test 1.$tn.2 {
+    set ::lBestIndexDistinct
+  } $bDistinct
+  do_test 1.$tn.3 {
+    expr {[lsearch [execsql "explain $sql"] IdxInsert]>=0}
+  } $idxinsert
+  do_test 1.$tn.4 {
+    set ::lOrderByConsumed
+  } $bConsumed
+}
+
+#-------------------------------------------------------------------------
+reset_db
+register_tcl_module db
+
+proc vtab_command {src method args} {
+  switch -- $method {
+    xConnect {
+      return "CREATE TABLE xxx(a, b)"
+    }
+
+    xBestIndex {
+      set hdl [lindex $args 0]
+      set ret [list]
+
+      set iCons 0
+      foreach cons [$hdl constraints] {
+        array set C $cons
+        if {($C(op)=="limit" || $C(op)=="offset") && $C(usable)} {
+          lappend ret use $iCons
+        }
+        incr iCons
+      }
+
+      return $ret
+    }
+
+    xFilter {
+      lappend ::lFilterArgs [lindex $args 2]
+      return [list sql "SELECT rowid, a, b FROM $src"]
+    }
+
+  }
+
+  return {}
+}
+
+do_execsql_test 2.0 {
+  CREATE TABLE t1(a, b);
+  CREATE INDEX i1 ON t1(a, b);
+  CREATE VIRTUAL TABLE vt1 USING tcl(vtab_command t1);
+}
+
+do_test 2.1 {
+  set ::lFilterArgs [list]
+  execsql { SELECT * FROM vt1 LIMIT 10 }
+  set ::lFilterArgs
+} {10}
+
+do_test 2.2 {
+  set ::lFilterArgs [list]
+  execsql { SELECT * FROM vt1 LIMIT 5 OFFSET 50 }
+  set ::lFilterArgs
+} {{50 5}}
+
+do_test 2.3 {
+  set ::lFilterArgs [list]
+  execsql { SELECT * FROM vt1 ORDER BY a, b LIMIT 1 OFFSET 1 }
+  set ::lFilterArgs
+} {{1 1}}
+
+do_test 2.4 {
+  set ::lFilterArgs [list]
+  execsql { SELECT * FROM vt1 ORDER BY a, +b LIMIT 1 OFFSET 1 }
+  set ::lFilterArgs
+} {{}}
+
+#-------------------------------------------------------------------------
+reset_db
+register_tcl_module db
+
+proc vtab_command {src method args} {
+  switch -- $method {
+    xConnect {
+      return "CREATE TABLE xxx(a, b)"
+    }
+
+    xBestIndex {
+      set hdl [lindex $args 0]
+      set lCons [$hdl constraints]
+
+      set ret [list]
+      for {set i 0} {$i < [llength $lCons]} {incr i} {
+        array set C [lindex $lCons $i]
+        if {$C(usable)} {
+          lappend ret use $i
+          $hdl in $i 1
+        }
+      }
+      return $ret
+    }
+
+    xFilter {
+      set lArg [lindex $args 2]
+      lappend ::lFilterArg {*}$lArg
+      return [list sql "SELECT rowid, a, b FROM $src"]
+    }
+
+  }
+
+  return {}
+}
+
+do_execsql_test 3.0 {
+  CREATE TABLE t1(a, b);
+  CREATE INDEX i1 ON t1(a, b);
+  CREATE VIRTUAL TABLE vt1 USING tcl(vtab_command t1);
+}
+
+foreach {tn sql lfa} {
+  1 "SELECT * FROM vt1 WHERE b IN (10, 20, 30)" {{10 20 30}}
+  2 "SELECT * FROM vt1 WHERE b IN ('abc', 'def')" {{abc def}}
+  3 "SELECT * FROM vt1 WHERE a IS NULL AND b IN ('abc', 'def')" {{} {abc def}}
+  4 "SELECT * FROM vt1 WHERE a IN (1,2,3) AND b IN ('abc', 'def')" 
+     {{1 2 3} {abc def}}
+
+  5 "SELECT * FROM vt1 
+     WHERE a IN (SELECT 1 UNION SELECT 2) AND b IN ('abc', 'def')"
+     {{1 2} {abc def}}
+
+  6 "SELECT * FROM vt1 
+     WHERE b IN ('abc', 'def') AND a IN (SELECT 1 UNION SELECT 2)"
+     {{abc def} {1 2}}
+} {
+  do_test 3.$tn {
+    set ::lFilterArg [list]
+    execsql $sql
+    set ::lFilterArg
+  } $lfa
+}
+
+#explain_i { SELECT * FROM vt1 WHERE b IN (10, 20, 30) }
+
+#-------------------------------------------------------------------------
+reset_db
+register_tcl_module db
+
+proc vtab_command {src method args} {
+  switch -- $method {
+    xConnect {
+      return "CREATE TABLE xxx(a, b, c)"
+    }
+
+    xBestIndex {
+      set hdl [lindex $args 0]
+      set lCons [$hdl constraints]
+
+      set ret [list]
+      for {set i 0} {$i < [llength $lCons]} {incr i} {
+        lappend ::lBestIndexRhs [$hdl rhs_value $i -]
+      }
+      return $ret
+    }
+
+    xFilter {
+      return [list sql "SELECT rowid, a, b, c FROM $src"]
+    }
+
+  }
+
+  return {}
+}
+
+do_execsql_test 4.0 {
+  CREATE TABLE t1(a, b, c);
+  CREATE VIRTUAL TABLE vt1 USING tcl(vtab_command t1);
+}
+
+foreach {tn sql lbir} {
+  1 "SELECT * FROM vt1 WHERE b = 10" {10}
+  2 "SELECT * FROM vt1 WHERE a = 'abc' AND b < 30" {abc 30}
+  3 "SELECT * FROM vt1 WHERE a = 'abc' AND b < 30+2" {abc -}
+  4 "SELECT * FROM vt1 WHERE a IN (1,2,3) AND b < 30+2" {- -}
+  5 "SELECT * FROM vt1 WHERE a IS 111 AND b < 30+2" {111 -}
+} {
+  do_test 4.$tn {
+    set ::lBestIndexRhs [list]
+    execsql $sql
+    set ::lBestIndexRhs
+  } $lbir
+}
+
+#-------------------------------------------------------------------------
+reset_db
+db cache size 0
+register_tcl_module db
+
+set ::vtab_handle_in 1
+proc vtab_command {src method args} {
+  switch -- $method {
+    xConnect {
+      return "CREATE TABLE xxx(a, b, c)"
+    }
+
+    xBestIndex {
+      set lCols [list a b c]
+
+      set hdl [lindex $args 0]
+      set lCons [$hdl constraints]
+      set lOrder [$hdl order]
+
+      set L ""
+      set O ""
+      set W [list]
+      set a 0
+      for {set i 0} {$i < [llength $lCons]} {incr i} {
+        array set C [lindex $lCons $i]
+        if {$C(usable)} {
+          if { $C(op)=="eq" } {
+            set bIn 0
+            if {$::vtab_handle_in} { set bIn [$hdl in $i 1] }
+            if {$bIn} {
+              lappend W "[lindex $lCols $C(column)] IN (%I$a%)"
+            } else {
+              lappend W "[lindex $lCols $C(column)] = %$a%"
+            }
+            lappend ret omit $i
+          }
+          if { $C(op)=="limit"  } { set L " LIMIT %$a%"  ; lappend ret use $i }
+          if { $C(op)=="offset" } { set O " OFFSET %$a%" ; lappend ret use $i }
+          incr a
+        }
+      }
+
+      set order ""
+      set selectlist "rowid, a, b, c"
+      if {[llength $lOrder]} {
+        array set sl [list]
+        set lO [list]
+        foreach s $lOrder {
+          array set C $s
+          set ad ""
+          if {$C(desc)} { set ad " DESC" }
+          lappend lO "[lindex $lCols $C(column)]$ad"
+          set sl($C(column)) 1
+        }
+        if {[$hdl distinct]==2} {
+          set selectlist "DISTINCT 0"
+          foreach i {0 1 2} {
+            if {[info exists sl($i)]} {
+              append selectlist ", [lindex $lCols $i]"
+            } else {
+              append selectlist ", 0"
+            }
+          }
+        } else {
+          set order " ORDER BY [join $lO ,]"
+        }
+      }
+
+      set where ""
+      if {[llength $W]} { set where " WHERE [join $W { AND }]" }
+      set sql "SELECT $selectlist FROM $src$where$order$L$O"
+
+      lappend ret idxStr $sql
+      return $ret
+    }
+
+    xFilter {
+      foreach {idxnum idxstr lArg} $args {}
+      set ii 0
+      set sql $idxstr
+      foreach a $lArg {
+        set sql [string map [list %$ii% $a] $sql]
+        set sql [string map [list %I$ii% [join $a ,]] $sql]
+        incr ii
+      }
+      lappend ::lFilterSql $sql
+
+      if {[regexp {OFFSET (.*)$} $sql -> off]} {
+        set real_sql "
+          WITH c(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM c WHERE i<$off )
+          SELECT 0,0,0,0 FROM c
+          UNION ALL SELECT * FROM (
+            $sql
+          )
+        "
+      } else {
+        set real_sql $sql
+      }
+
+      return [list sql $real_sql]
+    }
+
+  }
+
+  return {}
+}
+
+do_execsql_test 5.0 {
+  CREATE TABLE t1(a, b, c);
+  CREATE VIRTUAL TABLE vt1 USING tcl(vtab_command t1);
+  INSERT INTO t1 VALUES(1, 2, 3);
+  INSERT INTO t1 VALUES(2, 3, 4);
+  INSERT INTO t1 VALUES(3, 4, 5);
+  INSERT INTO t1 VALUES(1, 5, 6);
+  INSERT INTO t1 VALUES(2, 6, 7);
+  INSERT INTO t1 VALUES(3, 7, 8);
+  INSERT INTO t1 VALUES(1, 8, 9);
+  INSERT INTO t1 VALUES(2, 9, 0);
+}
+
+proc do_vtab_test {tn sql vtsql {res {}}} {
+  set ::lFilterSql [list]
+  uplevel [list do_execsql_test $tn.1 $sql $res]
+  uplevel [list do_test $tn.2 {set ::lFilterSql} [list {*}$vtsql]]
+}
+
+do_vtab_test 5.1.1 {
+  SELECT DISTINCT a FROM vt1
+} {
+  {SELECT DISTINCT 0, a, 0, 0 FROM t1}
+} {1 2 3}
+
+do_vtab_test 5.1.2 {
+  SELECT DISTINCT a FROM vt1 ORDER BY a
+} {
+  {SELECT rowid, a, b, c FROM t1 ORDER BY a}
+} {1 2 3}
+
+do_vtab_test 5.1.3 {
+  SELECT DISTINCT a FROM vt1 WHERE c IN (4,5,6,7,8)
+} {
+  {SELECT DISTINCT 0, a, 0, 0 FROM t1 WHERE c IN (4,5,6,7,8)}
+} {2 3 1}
+
+set ::vtab_handle_in 0
+do_vtab_test 5.1.4 {
+  SELECT  DISTINCT a FROM vt1 WHERE c IN (4,5,6,7,8)
+} {
+  {SELECT DISTINCT 0, a, 0, 0 FROM t1 WHERE c = 4}
+  {SELECT DISTINCT 0, a, 0, 0 FROM t1 WHERE c = 5}
+  {SELECT DISTINCT 0, a, 0, 0 FROM t1 WHERE c = 6}
+  {SELECT DISTINCT 0, a, 0, 0 FROM t1 WHERE c = 7}
+  {SELECT DISTINCT 0, a, 0, 0 FROM t1 WHERE c = 8}
+} {2 3 1}
+
+set ::vtab_handle_in 1
+do_vtab_test 5.1.5a {
+  SELECT a, b, c FROM vt1 WHERE c IN (4,5,6,7,8) LIMIT 2 OFFSET 2
+} {
+  {SELECT rowid, a, b, c FROM t1 WHERE c IN (4,5,6,7,8) LIMIT 2 OFFSET 2}
+} {1 5 6 2 6 7}
+
+set ::vtab_handle_in 0
+do_vtab_test 5.1.5b {
+  SELECT a, b, c FROM vt1 WHERE c IN (4,5,6,7,8) LIMIT 2 OFFSET 2
+} {
+  {SELECT rowid, a, b, c FROM t1 WHERE c = 4}
+  {SELECT rowid, a, b, c FROM t1 WHERE c = 5}
+  {SELECT rowid, a, b, c FROM t1 WHERE c = 6}
+  {SELECT rowid, a, b, c FROM t1 WHERE c = 7}
+} {1 5 6 2 6 7}
+set ::vtab_handle_in 1
+
+finish_test
diff --git a/test/bestindex9.test b/test/bestindex9.test
new file mode 100644
index 0000000000000000000000000000000000000000..d591b30efe507ba20b480d231f16a34713d90d29
--- /dev/null
+++ b/test/bestindex9.test
@@ -0,0 +1,104 @@
+# 2020-01-29
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix bestindex9
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+
+proc vtab_command {method args} {
+  switch -- $method {
+    xConnect {
+      return $::create_table
+    }
+
+    xBestIndex {
+      set hdl [lindex $args 0]
+      set ::vtab_orderby [$hdl orderby]
+      set ::vtab_distinct [$hdl distinct]
+
+      return [list orderby 1]
+    }
+
+    xFilter {
+      return ""
+    }
+  }
+
+  return {}
+}
+
+proc do_bestindex9_test {tn create select orderby distinct} {
+  forcedelete test.db2
+  sqlite3 dbtest test.db2
+  register_tcl_module dbtest
+
+  set ::create_table $create
+  dbtest eval { CREATE VIRTUAL TABLE t1 USING tcl(vtab_command); }
+  dbtest eval $select
+
+  do_test $tn.orderby [list set {} $::vtab_orderby] $orderby
+  do_test $tn.distinct [list set {} $::vtab_distinct] $distinct
+
+  dbtest close
+}
+
+#-------------------------------------------------------------------------
+#
+do_bestindex9_test 1.0 {
+  CREATE TABLE x(k1, k2, v1, PRIMARY KEY(k1, k2))
+} {
+  SELECT DISTINCT k1, k2 FROM t1 
+} {{column 0 desc 0} {column 1 desc 0}} 2
+
+do_bestindex9_test 1.1 {
+  CREATE TABLE x(k1, k2, v1, PRIMARY KEY(k1, k2)) WITHOUT ROWID
+} {
+  SELECT DISTINCT k1, k2 FROM t1 
+} {} 0
+
+do_bestindex9_test 1.2 {
+  CREATE TABLE x(k1 NOT NULL, k2 NOT NULL, v1, PRIMARY KEY(k1, k2))
+} {
+  SELECT DISTINCT k1, k2 FROM t1 
+} {} 0
+
+#-------------------------------------------------------------------------
+#
+do_bestindex9_test 2 {
+  CREATE TABLE x(c1, c2, c3);
+} {
+  SELECT DISTINCT c1 FROM t1 ORDER BY c1
+} {{column 0 desc 0}} 3
+
+#-------------------------------------------------------------------------
+#
+do_bestindex9_test 3 {
+  CREATE TABLE x(c1, c2, c3);
+} {
+  SELECT DISTINCT c1 FROM t1 GROUP BY c1
+} {{column 0 desc 0}} 1
+
+do_bestindex9_test 4 {
+  CREATE TABLE x(c1, c2, c3);
+} {
+  CREATE TABLE t2(balls);
+  SELECT DISTINCT c1 FROM t1, t2
+} {{column 0 desc 0}} 2
+
+
+finish_test
diff --git a/test/bestindexA.test b/test/bestindexA.test
new file mode 100644
index 0000000000000000000000000000000000000000..1976986471947e2497bb7265a48cfc76f2d05908
--- /dev/null
+++ b/test/bestindexA.test
@@ -0,0 +1,135 @@
+# 2020-01-29
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix bestindexA
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+
+proc vtab_command {method args} {
+  switch -- $method {
+    xConnect {
+      return "CREATE TABLE x(a, b, c)"
+    }
+
+    xBestIndex {
+      set hdl [lindex $args 0]
+      set clist [$hdl constraints]
+      foreach c $clist {
+        array set C $c
+        lappend ::vtab_constraints [list $C(op) $C(column)]
+      }
+      return [list]
+    }
+
+    xFilter {
+      return ""
+    }
+
+    xFindFunction {
+      foreach {nArg name} $args {}
+      if {$nArg==2 && $name=="even"} { 
+        return 152 
+      }
+      return 0
+    }
+
+  }
+
+  return {}
+}
+
+register_tcl_module db
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING tcl(vtab_command);
+}
+
+proc do_xbestindex_test {tn sql res} {
+  set script [subst {
+    execsql "$sql"
+    set ::vtab_constraints
+  }]
+
+  uplevel [list do_test $tn $script [list {*}$res]]
+  set ::vtab_constraints [list]
+}
+
+do_xbestindex_test 1.1 {
+  SELECT * FROM t1 WHERE a=?
+} {
+  {eq 0}
+}
+
+do_xbestindex_test 1.2 {
+  SELECT * FROM t1 WHERE a=? LIMIT 10
+} {
+  {eq 0}
+  {limit 0}
+}
+
+do_xbestindex_test 1.3 {
+  SELECT * FROM t1 WHERE a=? AND (b+1)=? LIMIT 10
+} {
+  {eq 0}
+}
+
+proc error_function {args} { error "not a function!" }
+db function even error_function
+
+do_xbestindex_test 1.4 {
+  SELECT * FROM t1 WHERE even(a, ?)
+} {
+  {152 0}
+}
+
+do_xbestindex_test 1.5 {
+  SELECT * FROM t1 WHERE b=10 AND even(a, ?)
+} {
+  {eq 1}
+  {152 0}
+}
+
+do_xbestindex_test 1.6 {
+  SELECT * FROM t1 WHERE b=10 LIMIT 10
+} {
+  {eq 1}
+  {limit 0}
+}
+
+do_xbestindex_test 1.7 {
+  SELECT * FROM t1 WHERE even(b,?) LIMIT 10
+} {
+  {152 1}
+  {limit 0}
+}
+
+do_xbestindex_test 1.8 {
+  SELECT * FROM t1 WHERE b!=? LIMIT 10
+} {
+  {ne 1}
+  {limit 0}
+}
+
+do_xbestindex_test 1.9 {
+  SELECT * FROM t1 WHERE ?=a LIMIT 10
+} {
+  {eq 0}
+  {limit 0}
+}
+
+
+finish_test
diff --git a/test/bestindexB.test b/test/bestindexB.test
new file mode 100644
index 0000000000000000000000000000000000000000..b50e74fee3e29309fa389f97281ad6f4dc0d2fa2
--- /dev/null
+++ b/test/bestindexB.test
@@ -0,0 +1,87 @@
+# 2023-10-26
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix bestindexB
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+register_tcl_module db
+
+proc vtab_command {method args} {
+  switch -- $method {
+    xConnect {
+      return "CREATE TABLE t1(a, b, c)"
+    }
+
+    xBestIndex {
+      set hdl [lindex $args 0]
+      set clist [$hdl constraints]
+      set orderby [$hdl orderby]
+
+      if {[info exists ::xbestindex_sql]} { 
+        explain_i $::xbestindex_sql 
+        set ::xbestindex_res [ execsql $::xbestindex_sql ]
+      }
+
+      return "cost 1000000 rows 1000000 idxnum 0 idxstr hello"
+    }
+
+    xFilter {
+      return "sql {SELECT 0, 1, 2, 3}"
+    }
+  }
+
+  return {}
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE x1 USING tcl(vtab_command);
+  CREATE TABLE y1(a, b);
+  CREATE TABLE y2(a, b);
+} {}
+
+do_execsql_test 1.1 {
+  SELECT * FROM x1
+} {1 2 3}
+
+do_execsql_test 1.2 {
+  INSERT INTO y1 VALUES(1, 2) RETURNING rowid;
+} {1}
+
+do_execsql_test 1.3 {
+  CREATE TRIGGER y1tr BEFORE INSERT ON y1 BEGIN
+    SELECT * FROM x1;
+  END;
+  INSERT INTO y1 VALUES(3, 4) RETURNING rowid;
+} {2}
+
+
+# This time, rig the xBestIndex() method of the vtab to invoke an SQL
+# statement that uses RETURNING.
+set ::xbestindex_sql {
+  INSERT INTO y2 VALUES(NULL, NULL) RETURNING rowid;
+}
+do_execsql_test 1.4 {
+  INSERT INTO y1 VALUES(5, 6) RETURNING rowid;
+} {3}
+
+do_test 1.5 {
+  set ::xbestindex_res
+} {1}
+
+finish_test
diff --git a/test/bestindexC.test b/test/bestindexC.test
new file mode 100644
index 0000000000000000000000000000000000000000..48f3a2765597c3854f1ed58078d3ad0a9a885ac5
--- /dev/null
+++ b/test/bestindexC.test
@@ -0,0 +1,352 @@
+# 2024-04-26
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix bestindexC
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+register_tcl_module db
+
+proc vtab_command {lVal method args} {
+  switch -- $method {
+    xConnect {
+      return "CREATE TABLE t1(a)"
+    }
+
+    xBestIndex {
+      set hdl [lindex $args 0]
+      set clist [$hdl constraints]
+      set orderby [$hdl orderby]
+
+      set idxstr [list]
+      set res [list]
+
+      set idx 0
+      foreach c $clist {
+        array set a $c
+        if {$a(usable)==0} continue
+        if {$a(op)=="limit" && ![info exists ::do_not_use_limit]} { 
+          lappend idxstr limit
+          lappend res omit $idx
+        }
+        if {$a(op)=="offset" && ![info exists ::do_not_use_offset]} { 
+          lappend idxstr offset
+          lappend res omit $idx
+        }
+        incr idx
+      }
+
+      return "cost 1000000 rows 1000000 idxnum 0 idxstr {$idxstr} $res"
+    }
+
+    xFilter {
+      set idxstr [lindex $args 1]
+      set LIMIT ""
+      foreach a $idxstr b [lindex $args 2] {
+        set x($a) $b
+      }
+
+      if {![info exists x(limit)]} { set x(limit) -1 }
+      if {![info exists x(offset)]} { set x(offset) -1 }
+      set LIMIT " LIMIT $x(limit) OFFSET $x(offset)"
+
+      set idx 1
+      foreach v $lVal {
+        lappend lRow "($idx, '$v')"
+        incr idx
+      }
+
+      return [list sql "
+        SELECT * FROM ( VALUES [join $lRow ,]) $LIMIT
+      "]
+    }
+  }
+
+  return {}
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE x1 USING tcl(vtab_command "a b c d e f");
+  CREATE VIRTUAL TABLE x2 USING tcl(vtab_command "A B C D E F a b");
+} {}
+
+do_execsql_test 1.1 {
+  CREATE TEMP TABLE t_unionall AS 
+    SELECT * FROM x1 UNION ALL SELECT * FROM x2;
+
+  CREATE TEMP TABLE t_intersect AS 
+    SELECT * FROM x1 INTERSECT SELECT * FROM x2;
+
+  CREATE TEMP TABLE t_union AS 
+    SELECT * FROM x1 UNION SELECT * FROM x2;
+
+  CREATE TEMP TABLE t_except AS 
+    SELECT * FROM x1 EXCEPT SELECT * FROM x2;
+}
+
+foreach {tn limit} {
+  1 "LIMIT 8" 
+  2 "LIMIT 4" 
+  3 "LIMIT 4 OFFSET 2" 
+  4 "LIMIT 8 OFFSET 4" 
+} {
+
+  foreach {op tbl} {
+    "UNION ALL" t_unionall
+    "UNION"     t_union
+    "INTERSECT" t_intersect
+    "EXCEPT"    t_except
+  } {
+
+    set expect [execsql "SELECT * FROM $tbl $limit"]
+    do_execsql_test 1.2.$tbl.$tn "SELECT * FROM (
+      SELECT * FROM x1 $op SELECT * FROM x2
+    ) $limit" $expect
+
+  }
+
+}
+
+#-------------------------------------------------------------------------
+reset_db
+register_tcl_module db
+
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE x1 USING tcl(vtab_command "a b c d e f");
+  CREATE VIRTUAL TABLE x2 USING tcl(vtab_command "a b e f");
+} {}
+
+do_execsql_test 2.1 {
+  SELECT * FROM x1 
+    EXCEPT
+  SELECT * FROM x2
+  LIMIT 3
+} {c d}
+
+#-------------------------------------------------------------------------
+reset_db
+register_tcl_module db
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE y1 USING tcl(vtab_command "1 2 3 4 5 6 7 8 9 10");
+} {}
+
+do_execsql_test 3.1 {
+  SELECT * FROM y1 WHERE a = COALESCE('8', a) LIMIT 3
+} {8}
+
+do_execsql_test 3.2 {
+  SELECT * FROM y1 WHERE a = '2' LIMIT 3
+} {2}
+
+load_static_extension db series
+do_execsql_test 3.3 {
+  SELECT * FROM generate_series(1, 5) WHERE value = (value & 14) LIMIT 3
+} {2 4}
+
+do_execsql_test 3.4 {
+  SELECT value FROM generate_series(1,10) WHERE value>2 LIMIT 4 OFFSET 1;
+} {4 5 6 7}
+
+set ::do_not_use_limit 1
+do_execsql_test 3.5 {
+  SELECT * FROM y1 LIMIT 5 OFFSET 3
+} {4 5 6 7 8}
+unset ::do_not_use_limit
+set ::do_not_use_offset 1
+do_execsql_test 3.6 {
+  SELECT * FROM y1 LIMIT 5 OFFSET 3
+} {4 5 6 7 8}
+unset ::do_not_use_offset
+
+#-------------------------------------------------------------------------
+reset_db
+proc vtab_command {lVal method args} {
+  switch -- $method {
+    xConnect { error "not happy!" }
+  }
+
+  return {}
+}
+
+register_tcl_module db
+do_catchsql_test 4.0 {
+  CREATE VIRTUAL TABLE y1 USING tcl(vtab_command 1);
+} {1 {not happy!}}
+do_test 4.1 {
+  sqlite3_errcode db
+} SQLITE_ERROR
+
+proc vtab_command {lVal method args} {
+  switch -- $method {
+    xConnect {
+      return $lVal
+    }
+  }
+  return {}
+}
+
+do_catchsql_test 4.2 {
+  CREATE VIRTUAL TABLE y1 USING tcl(vtab_command "PRAGMA page_size=1024");
+} {1 {declare_vtab: syntax error}}
+do_catchsql_test 4.3 {
+  CREATE VIRTUAL TABLE y1 USING tcl(vtab_command "CREATE TABLE x1(");
+} {1 {declare_vtab: incomplete input}}
+do_catchsql_test 4.4 {
+  CREATE VIRTUAL TABLE y1 USING tcl(vtab_command "CREATE TABLE x1(insert)");
+} {1 {declare_vtab: near "insert": syntax error}}
+
+#-------------------------------------------------------------------------
+reset_db
+register_tcl_module db
+
+proc quote {str} {
+  return "'[string map {' ''} $str]'"
+}
+
+proc vtab_command {lVal method args} {
+  switch -- $method {
+    xConnect {
+      return "CREATE TABLE t1(a, b, c, d)"
+    }
+
+    xBestIndex {
+      set hdl [lindex $args 0]
+      set clist [$hdl constraints]
+
+      set res [list]
+      set idx 0
+      set idxnum 0
+
+      set cols(0) a
+      set cols(1) b
+      set cols(2) c
+
+      set lCons [list]
+
+      foreach c $clist {
+        array set a $c
+        if {$a(usable)==0} continue
+
+        if {($a(op)=="eq" || $a(op)=="is") && [info exists cols($a(column))]} {
+          lappend res omit $idx
+          set coll [$hdl collation $idx]
+          lappend lCons "$cols($a(column)) = %[llength $lCons]% COLLATE $coll"
+
+          set idxnum [expr {$idx + (1 << $a(column))}]
+          catch { unset cols($a(column)) }
+        }
+
+        incr idx
+      }
+
+      if {[llength [array names cols]]>0} {
+        set missing [list]
+        for {set i 0} {$i < 3} {incr i} {
+          catch { lappend missing $cols($i) }
+        }
+        set msg "missing required constraints: [join $missing ,]"
+        return [list constraint $msg]
+      }
+
+      set idxstr [join $lCons " AND "]
+      return "cost 1000 rows 1000 idxnum $idxnum $res idxstr {$idxstr}"
+    }
+
+    xFilter {
+      foreach {idxnum idxstr lArg} $args {}
+      set i 0
+      set where $idxstr
+      foreach a $lArg {
+        set where [string map [list %$i% [quote $a]] $where]
+        incr i
+      }
+   #   puts $where
+      return [list sql "SELECT rowid, * FROM $lVal WHERE $where"]
+    }
+  }
+
+  return {}
+}
+
+do_execsql_test 5.1 {
+  CREATE VIRTUAL TABLE x1 USING tcl(vtab_command t1);
+  CREATE TABLE t1(a, b, c, d);
+}
+
+foreach {tn where ok} {
+  0    "WHERE a=? AND b=? AND c=? AND c=?"              1
+  1    "WHERE a=? AND b=? AND c=?"                      1
+  2    "WHERE a=? AND b=? AND (c=? OR c=?)"             1
+  3    "WHERE a=? AND b=? AND (c=? OR c=? OR c=?)"      1
+  4    "WHERE a=? AND b=? AND (c IS ? OR c IS ?)"       1
+  5    "WHERE a=? AND ((b=? AND c=?) OR (c=? AND b=?))" 1
+  6    "WHERE a=? AND ((b=? AND c=?) OR (c=?))"         0
+} {
+  do_test 5.2.$tn {
+    catch { execsql "SELECT * FROM x1 $::where" } msg
+#    if {$tn==0 || $tn==2 || $tn==3} { puts "MSG: $msg" }
+  } [expr !$ok]
+}
+
+do_execsql_test 5.3 {
+  SELECT * FROM x1 WHERE (a, b, c) = (?, ?, ?);
+}
+
+do_execsql_test 5.4 {
+  INSERT INTO t1(rowid, a, b, c, d) VALUES(1, 'x', 'y', 'z', 'one');
+  INSERT INTO t1(rowid, a, b, c, d) VALUES(2, 'X', 'Y', 'Z', 'two');
+  SELECT * FROM x1 WHERE (a, b, c) = ('X', 'Y', 'Z');
+} {X Y Z two}
+do_execsql_test 5.5 {
+  SELECT * FROM x1 WHERE a='x' AND b='y' AND c='z';
+} {x y z one}
+do_execsql_test 5.6 {
+  SELECT * FROM x1 
+  WHERE a='x' COLLATE nocase AND b='y' COLLATE nocase AND c='z'COLLATE nocase;
+} {x y z one X Y Z two}
+
+do_execsql_test 5.7 {
+  DELETE FROM t1;
+
+  INSERT INTO t1(rowid, a, b, c, d) VALUES(0, 'x', 'y', 'z', 'zero');
+  INSERT INTO t1(rowid, a, b, c, d) VALUES(1, 'x', 'y', 'Z', 'one');
+  INSERT INTO t1(rowid, a, b, c, d) VALUES(2, 'x', 'Y', 'z', 'two');
+  INSERT INTO t1(rowid, a, b, c, d) VALUES(3, 'x', 'Y', 'Z', 'three');
+  INSERT INTO t1(rowid, a, b, c, d) VALUES(4, 'X', 'y', 'z', 'four');
+  INSERT INTO t1(rowid, a, b, c, d) VALUES(5, 'X', 'y', 'Z', 'five');
+  INSERT INTO t1(rowid, a, b, c, d) VALUES(6, 'X', 'Y', 'z', 'six');
+  INSERT INTO t1(rowid, a, b, c, d) VALUES(7, 'X', 'Y', 'z', 'seven');
+}
+
+do_execsql_test 5.8 {
+  SELECT d FROM x1 
+  WHERE a='x' AND ((b='y' AND c='z') OR (b='Y' AND c='z' COLLATE nocase))
+} {
+  zero two three
+}
+
+do_execsql_test 5.9 {
+  SELECT d FROM x1 
+  WHERE a='x' COLLATE nocase 
+  AND ((b='y' AND c='z') OR (b='Y' AND c='z' COLLATE nocase))
+} {
+  zero four two
+  three six seven
+}
+
+finish_test
diff --git a/test/bestindexD.test b/test/bestindexD.test
new file mode 100644
index 0000000000000000000000000000000000000000..b06d6b4270da05d39bf6672d40557b12876b831a
--- /dev/null
+++ b/test/bestindexD.test
@@ -0,0 +1,93 @@
+# 2024-08-03
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix bestindexD
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+register_tcl_module db
+
+proc vtab_command {method args} {
+  switch -- $method {
+    xConnect {
+      return "CREATE TABLE t1(a PRIMARY KEY, b, c) WITHOUT ROWID"
+    }
+
+    xBestIndex {
+      set hdl [lindex $args 0]
+      set ::colUsed [$hdl mask]
+
+      set cost 1000000
+      set used ""
+
+      set cons 0
+      foreach c [$hdl constraints] {
+        set cost [expr $cost/10]
+        append used " use $cons"
+        incr cons
+      }
+
+      return "cost $cost rows $cost $used"
+    }
+  }
+
+  return {}
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE x1 USING tcl(vtab_command);
+
+  CREATE TABLE t2(a, b);
+} {}
+
+# This proc assumes that there is only one use of a virtual table - x1 -
+# in SQL statement $sql. It tests that the colUsed value passed to the
+# xBestIndex method matches the actual columns used, which is ascertained 
+# by searching the compiled VM code for VColumn instructions.
+#
+proc do_colsused_test {tn sql} {
+  set ::colUsed ""
+  execsql $sql
+  set got $::colUsed
+
+  set expect 0
+  db eval "EXPLAIN $sql" x {
+    if {$x(opcode)=="VColumn"} {
+      set expect [expr $expect | (1<<$x(p2))]
+    }
+  }
+
+  uplevel [list do_test $tn.($expect/$got) [list expr ($expect & $got)] $expect]
+}
+
+do_colsused_test 1.1 { SELECT a FROM x1 }   
+do_colsused_test 1.2 { SELECT a,c FROM x1 } 
+do_colsused_test 1.3 { SELECT b FROM x1 }   
+do_colsused_test 1.4 { SELECT b FROM x1 WHERE c=? } 
+
+do_colsused_test 1.5 {
+  select 1 from t2 full join x1;
+}
+
+do_colsused_test 1.6 {
+  select 1 from x1 WHERE (b=? AND c=?) OR (b=? AND c=?)
+}
+
+finish_test
+
+
diff --git a/test/between.test b/test/between.test
new file mode 100644
index 0000000000000000000000000000000000000000..16c3913d12b913f9de89233b6f3d96b73b76dc59
--- /dev/null
+++ b/test/between.test
@@ -0,0 +1,143 @@
+# 2005 July 28
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the use of indices in WHERE clauses
+# when the WHERE clause contains the BETWEEN operator.
+#
+# $Id: between.test,v 1.2 2006/01/17 09:35:02 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Build some test data
+#
+do_test between-1.0 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t1(w int, x int, y int, z int);
+  }
+  for {set i 1} {$i<=100} {incr i} {
+    set w $i
+    set x [expr {int(log($i)/log(2))}]
+    set y [expr {$i*$i + 2*$i + 1}]
+    set z [expr {$x+$y}]
+    ifcapable tclvar {
+      # Random unplanned test of the $varname variable syntax.
+      execsql {INSERT INTO t1 VALUES($::w,$::x,$::y,$::z)}
+    } else {
+      # If the $varname syntax is not available, use the regular variable
+      # declaration syntax.
+      execsql {INSERT INTO t1 VALUES(:w,:x,:y,:z)}
+    }
+  }
+  execsql {
+    CREATE UNIQUE INDEX i1w ON t1(w);
+    CREATE INDEX i1xy ON t1(x,y);
+    CREATE INDEX i1zyx ON t1(z,y,x);
+    COMMIT;
+  }
+} {}
+
+# This procedure executes the SQL.  Then it appends to the result the
+# "sort" or "nosort" keyword depending on whether or not any sorting
+# is done.  Then it appends the names of the table and index used.
+#
+proc queryplan {sql} {
+  set ::sqlite_sort_count 0
+  set data [execsql $sql]
+  if {$::sqlite_sort_count} {set x sort} {set x nosort}
+  lappend data $x
+  set eqp [execsql "EXPLAIN QUERY PLAN $sql"]
+  # puts eqp=$eqp
+  foreach {a b c x} $eqp {
+    if {[regexp {(SCAN|SEARCH) (\w+ AS )?(\w+) USING.* INDEX (\w+)\y} \
+        $x all ss as tab idx]} {
+      lappend data $tab $idx
+    } elseif {[regexp {(SCAN|SEARCH) (\w+ AS )?(\w+)\y} $x all ss as tab]} {
+      lappend data $tab *
+    }
+  }
+  return $data   
+}
+
+do_test between-1.1.1 {
+  queryplan {
+    SELECT * FROM t1 WHERE w BETWEEN 5 AND 6 ORDER BY +w
+  }
+} {5 2 36 38 6 2 49 51 sort t1 i1w}
+do_test between-1.1.2 {
+  queryplan {
+    SELECT * FROM t1 WHERE +w BETWEEN 5 AND 6 ORDER BY +w
+  }
+} {5 2 36 38 6 2 49 51 sort t1 *}
+do_test between-1.2.1 {
+  queryplan {
+    SELECT * FROM t1 WHERE w BETWEEN 5 AND 65-y ORDER BY +w
+  }
+} {5 2 36 38 6 2 49 51 sort t1 i1w}
+do_test between-1.2.2 {
+  queryplan {
+    SELECT * FROM t1 WHERE +w BETWEEN 5 AND 65-y ORDER BY +w
+  }
+} {5 2 36 38 6 2 49 51 sort t1 *}
+do_test between-1.3.1 {
+  queryplan {
+    SELECT * FROM t1 WHERE w BETWEEN 41-y AND 6 ORDER BY +w
+  }
+} {5 2 36 38 6 2 49 51 sort t1 i1w}
+do_test between-1.3.2 {
+  queryplan {
+    SELECT * FROM t1 WHERE +w BETWEEN 41-y AND 6 ORDER BY +w
+  }
+} {5 2 36 38 6 2 49 51 sort t1 *}
+do_test between-1.4 {
+  queryplan {
+    SELECT * FROM t1 WHERE w BETWEEN 41-y AND 65-y ORDER BY +w
+  }
+} {5 2 36 38 6 2 49 51 sort t1 *}
+do_test between-1.5.1 {
+  queryplan {
+    SELECT * FROM t1 WHERE 26 BETWEEN y AND z ORDER BY +w
+  }
+} {4 2 25 27 sort t1 i1zyx}
+do_test between-1.5.2 {
+  queryplan {
+    SELECT * FROM t1 WHERE 26 BETWEEN +y AND z ORDER BY +w
+  }
+} {4 2 25 27 sort t1 i1zyx}
+do_test between-1.5.3 {
+  queryplan {
+    SELECT * FROM t1 WHERE 26 BETWEEN y AND +z ORDER BY +w
+  }
+} {4 2 25 27 sort t1 *}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test between-2.0 {
+  CREATE TABLE t1(x TEXT, y TEXT COLLATE nocase);
+  INSERT INTO t1 VALUES('0', 'abc');
+}
+
+foreach {tn expr res} {
+  1 "x                BETWEEN 1 AND '5'" 0
+  2 "x COLLATE binary BETWEEN 1 AND '5'" 0
+  3 "x COLLATE nocase BETWEEN 1 AND '5'" 0
+
+  4 "y                  BETWEEN 'A' AND 'B'" 1
+  5 "y COLLATE nocase   BETWEEN 'A' AND 'B'" 1
+  6 "y COLLATE binary   BETWEEN 'A' AND 'B'" 0
+  7 "(y COLLATE binary) BETWEEN 'A' AND 'B'" 0
+} {
+  set sql "SELECT $expr FROM t1"
+  do_execsql_test between-2.1.$tn $sql $res
+}
+
+finish_test
diff --git a/test/bigfile.test b/test/bigfile.test
new file mode 100644
index 0000000000000000000000000000000000000000..31c632322c726b085a543fde874aeaa63b3cb472
--- /dev/null
+++ b/test/bigfile.test
@@ -0,0 +1,203 @@
+# 2002 November 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script testing the ability of SQLite to handle database
+# files larger than 4GB.
+#
+# $Id: bigfile.test,v 1.12 2009/03/05 04:27:08 shane Exp $
+#
+
+if {[file exists skip-big-file]} return
+if {$tcl_platform(os)=="Darwin"} return
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Do not use a codec for this file, as the database is manipulated using
+# external methods (the [fake_big_file] and [hexio_write] commands).
+#
+do_not_use_codec
+
+# If SQLITE_DISABLE_LFS is defined, omit this file.
+ifcapable !lfs {
+  finish_test
+  return
+}
+
+# These tests only work for Tcl version 8.4 and later.  Prior to 8.4,
+# Tcl was unable to handle large files.
+#
+scan $::tcl_version %f vx
+if {$vx<8.4} return
+
+# Mac OS X does not handle large files efficiently.  So skip this test
+# on that platform.
+if {$tcl_platform(os)=="Darwin"} return
+
+# This is the md5 checksum of all the data in table t1 as created
+# by the first test.  We will use this number to make sure that data
+# never changes.
+#
+set MAGIC_SUM {593f1efcfdbe698c28b4b1b693f7e4cf}
+
+do_test bigfile-1.1 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES('abcdefghijklmnopqrstuvwxyz');
+    INSERT INTO t1 SELECT rowid || ' ' || x FROM t1;
+    INSERT INTO t1 SELECT rowid || ' ' || x FROM t1;
+    INSERT INTO t1 SELECT rowid || ' ' || x FROM t1;
+    INSERT INTO t1 SELECT rowid || ' ' || x FROM t1;
+    INSERT INTO t1 SELECT rowid || ' ' || x FROM t1;
+    INSERT INTO t1 SELECT rowid || ' ' || x FROM t1;
+    INSERT INTO t1 SELECT rowid || ' ' || x FROM t1;
+    COMMIT;
+  }
+  execsql {
+    SELECT md5sum(x) FROM t1;
+  }
+} $::MAGIC_SUM
+
+# Try to create a large file - a file that is larger than 2^32 bytes.
+# If this fails, it means that the system being tested does not support
+# large files.  So skip all of the remaining tests in this file.
+#
+db close
+if {[catch {fake_big_file 4096 [get_pwd]/test.db} msg]} {
+  puts "**** Unable to create a file larger than 4096 MB. *****"
+  finish_test
+  return
+}
+hexio_write test.db 28 00000000
+
+do_test bigfile-1.2 {
+  sqlite3 db test.db
+  execsql {
+    SELECT md5sum(x) FROM t1;
+  }
+} $::MAGIC_SUM
+
+# The previous test may fail on some systems because they are unable
+# to handle large files.  If that is so, then skip all of the following
+# tests.  We will know the above test failed because the "db" command
+# does not exist.
+#
+if {[llength [info command db]]<=0} {
+  puts "**** Large file support appears to be broken. *****"
+  finish_test
+  return
+}
+
+do_test bigfile-1.3 {
+  execsql {
+    CREATE TABLE t2 AS SELECT * FROM t1;
+    SELECT md5sum(x) FROM t2;
+  }
+} $::MAGIC_SUM
+do_test bigfile-1.4 {
+  db close
+  sqlite3 db test.db
+  execsql {
+    SELECT md5sum(x) FROM t1;
+  }
+} $::MAGIC_SUM
+
+db close
+if {[catch {fake_big_file 8192 [get_pwd]/test.db}]} {
+  puts "**** Unable to create a file larger than 8192 MB. *****"
+  finish_test
+  return
+}
+hexio_write test.db 28 00000000
+
+do_test bigfile-1.5 {
+  sqlite3 db test.db
+  execsql {
+    SELECT md5sum(x) FROM t1;
+  }
+} $::MAGIC_SUM
+do_test bigfile-1.6 {
+  sqlite3 db test.db
+  execsql {
+    SELECT md5sum(x) FROM t2;
+  }
+} $::MAGIC_SUM
+do_test bigfile-1.7 {
+  execsql {
+    CREATE TABLE t3 AS SELECT * FROM t1;
+    SELECT md5sum(x) FROM t3;
+  }
+} $::MAGIC_SUM
+do_test bigfile-1.8 {
+  db close
+  sqlite3 db test.db
+  execsql {
+    SELECT md5sum(x) FROM t1;
+  }
+} $::MAGIC_SUM
+do_test bigfile-1.9 {
+  execsql {
+    SELECT md5sum(x) FROM t2;
+  }
+} $::MAGIC_SUM
+
+db close
+if {[catch {fake_big_file 16384 [get_pwd]/test.db}]} {
+  puts "**** Unable to create a file larger than 16384 MB. *****"
+  finish_test
+  return
+}
+hexio_write test.db 28 00000000
+
+do_test bigfile-1.10 {
+  sqlite3 db test.db
+  execsql {
+    SELECT md5sum(x) FROM t1;
+  }
+} $::MAGIC_SUM
+do_test bigfile-1.11 {
+  sqlite3 db test.db
+  execsql {
+    SELECT md5sum(x) FROM t2;
+  }
+} $::MAGIC_SUM
+do_test bigfile-1.12 {
+  sqlite3 db test.db
+  execsql {
+    SELECT md5sum(x) FROM t3;
+  }
+} $::MAGIC_SUM
+do_test bigfile-1.13 {
+  execsql {
+    CREATE TABLE t4 AS SELECT * FROM t1;
+    SELECT md5sum(x) FROM t4;
+  }
+} $::MAGIC_SUM
+do_test bigfile-1.14 {
+  db close
+  sqlite3 db test.db
+  execsql {
+    SELECT md5sum(x) FROM t1;
+  }
+} $::MAGIC_SUM
+do_test bigfile-1.15 {
+  execsql {
+    SELECT md5sum(x) FROM t2;
+  }
+} $::MAGIC_SUM
+do_test bigfile-1.16 {
+  execsql {
+    SELECT md5sum(x) FROM t3;
+  }
+} $::MAGIC_SUM
+
+finish_test
diff --git a/test/bigfile2.test b/test/bigfile2.test
new file mode 100644
index 0000000000000000000000000000000000000000..de3b14b558ede33b77d9423002fd9ba9ea8bfcdf
--- /dev/null
+++ b/test/bigfile2.test
@@ -0,0 +1,62 @@
+# 2011 December 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script testing the ability of SQLite to handle database
+# files larger than 4GB.
+#
+
+if {[file exists skip-big-file]} return
+if {$tcl_platform(os)=="Darwin"} return
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix bigfile2
+
+# Create a small database.
+#
+do_execsql_test 1.1 {
+  CREATE TABLE t1(a, b);
+  INSERT INTO t1 VALUES(1, 2);
+}
+
+# Pad the file out to 4GB in size. Then clear the file-size field in the
+# db header. This will cause SQLite to assume that the first 4GB of pages
+# are actually in use and new pages will be appended to the file.
+#
+db close
+if {[catch {fake_big_file 4096 [get_pwd]/test.db} msg]} {
+  puts "**** Unable to create a file larger than 4096 MB. *****"
+  finish_test
+  return
+}
+hexio_write test.db 28 00000000
+
+do_test 1.2 {
+  file size test.db
+} [expr 14 + 4096 * (1<<20)]
+
+# Now insert a large row. The overflow pages will be located past the 4GB
+# boundary. Then, after opening and closing the database, test that the row
+# can be read back in. 
+# 
+set str [string repeat k 30000]
+do_test 1.3 {
+  sqlite3 db test.db
+  execsql { INSERT INTO t1 VALUES(3, $str) }
+  db close
+  sqlite3 db test.db
+  db one { SELECT b FROM t1 WHERE a = 3 }
+} $str
+
+db close
+delete_file test.db
+
+finish_test
diff --git a/test/bigmmap.test b/test/bigmmap.test
new file mode 100644
index 0000000000000000000000000000000000000000..ba9f8425242786e15c17fb4926b772f6f946f6d5
--- /dev/null
+++ b/test/bigmmap.test
@@ -0,0 +1,108 @@
+# 2017 August 07
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script testing the ability of SQLite to use mmap
+# to access files larger than 4GiB.
+#
+
+if {[file exists skip-big-file]} return
+if {$tcl_platform(os)=="Darwin"} return
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix bigmmap
+
+ifcapable !mmap||!vtab {
+  finish_test
+  return
+}
+
+set mmap_limit 0
+db eval { 
+  SELECT compile_options AS x FROM pragma_compile_options 
+  WHERE x LIKE 'max_mmap_size=%' 
+} {
+  regexp {MAX_MMAP_SIZE=([0-9]*)} $x -> mmap_limit
+}
+if {$mmap_limit < [expr 8 * 1<<30]} {
+  puts "Skipping bigmmap.test - requires SQLITE_MAX_MMAP_SIZE >= 8G"
+  finish_test
+  return
+}
+
+
+#-------------------------------------------------------------------------
+# Create the database file roughly 8GiB in size. Most pages are unused,
+# except that there is a table and index clustered around each 1GiB
+# boundary.
+#
+do_execsql_test 1.0 {
+  PRAGMA page_size = 4096;
+  CREATE TABLE t0(a INTEGER PRIMARY KEY, b, c, UNIQUE(b, c));
+  WITH  s(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM s LIMIT 100 )
+  INSERT INTO t0 SELECT i, 't0', randomblob(800) FROM s;
+}
+
+for {set i 1} {$i < 8} {incr i} {
+  if {[catch {fake_big_file [expr $i*1024] [get_pwd]/test.db}]} {
+    puts "Cannot create ${i}MB sparse file"
+    finish_test
+    return
+  }
+  hexio_write test.db 28 [format %.8x [expr ($i*1024*1024*1024/4096) - 5]]
+
+  do_execsql_test 1.$i "
+    CREATE TABLE t$i (a INTEGER PRIMARY KEY, b, c, UNIQUE(b, c));
+    WITH  s(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM s LIMIT 100 )
+      INSERT INTO t$i SELECT i, 't$i', randomblob(800) FROM s;
+  "
+}
+
+#-------------------------------------------------------------------------
+# Check that data can be retrieved from the db with a variety of 
+# configured mmap size limits.
+#
+for {set i 0} {$i < 9} {incr i} {
+
+  # Configure a memory mapping $i GB in size.
+  #
+  set val [expr $i*1024*1024*1024]
+  execsql "PRAGMA main.mmap_size = $val"
+  do_execsql_test 2.$i.0 {
+    PRAGMA main.mmap_size
+  } $val
+
+  for {set t 0} {$t < 8} {incr t} {
+    do_execsql_test 2.$i.$t.1 "
+      SELECT count(*) FROM t$t;
+      SELECT count(b || c) FROM t$t GROUP BY b;
+    " {100 100}
+  
+    do_execsql_test 2.$i.$t.2 "
+      SELECT * FROM t$t AS o WHERE 
+        NOT EXISTS( SELECT * FROM t$t AS i WHERE a=o.a AND +b=o.b AND +c=o.c )
+      ORDER BY b, c;
+    " {}
+    
+    do_eqp_test 2.$i.$t.3 "
+      SELECT * FROM t$t AS o WHERE 
+        NOT EXISTS( SELECT * FROM t$t AS i WHERE a=o.a AND +b=o.b AND +c=o.c )
+      ORDER BY b, c;
+    " [string map {"\n    " "\n"} "
+      QUERY PLAN
+      |--SCAN o USING COVERING INDEX sqlite_autoindex_t${t}_1
+      `--CORRELATED SCALAR SUBQUERY xxxxxx
+         `--SEARCH i USING INTEGER PRIMARY KEY (rowid=?)
+    "]
+  }
+}
+
+finish_test
diff --git a/test/bigrow.test b/test/bigrow.test
new file mode 100644
index 0000000000000000000000000000000000000000..fa59c3625240a582a1d38e3826d895264e68c7ef
--- /dev/null
+++ b/test/bigrow.test
@@ -0,0 +1,223 @@
+# 2001 September 23
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is stressing the library by putting large amounts
+# of data in a single row of a table.
+#
+# $Id: bigrow.test,v 1.5 2004/08/07 23:54:48 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Make a big string that we can use for test data
+#
+do_test bigrow-1.0 {
+  set ::bigstr {}
+  for {set i 1} {$i<=9999} {incr i} {
+    set sep [string index "abcdefghijklmnopqrstuvwxyz" [expr {$i%26}]]
+    append ::bigstr "$sep [format %04d $i] "
+  }
+  string length $::bigstr
+} {69993}
+
+# Make a table into which we can insert some but records.
+#
+do_test bigrow-1.1 {
+  execsql {
+    CREATE TABLE t1(a text, b text, c text);
+    SELECT name FROM sqlite_master
+      WHERE type='table' OR type='index'
+      ORDER BY name
+  }
+} {t1}
+
+do_test bigrow-1.2 {
+  set ::big1 [string range $::bigstr 0 65519]
+  set sql "INSERT INTO t1 VALUES('abc',"
+  append sql "'$::big1', 'xyz');"
+  execsql $sql
+  execsql {SELECT a, c FROM t1}
+} {abc xyz}
+do_test bigrow-1.3 {
+  execsql {SELECT b FROM t1}
+} [list $::big1]
+do_test bigrow-1.4 {
+  set ::big2 [string range $::bigstr 0 65520]
+  set sql "INSERT INTO t1 VALUES('abc2',"
+  append sql "'$::big2', 'xyz2');"
+  set r [catch {execsql $sql} msg]
+  lappend r $msg
+} {0 {}}
+do_test bigrow-1.4.1 {
+  execsql {SELECT b FROM t1 ORDER BY c}
+} [list $::big1 $::big2]
+do_test bigrow-1.4.2 {
+  execsql {SELECT c FROM t1 ORDER BY c}
+} {xyz xyz2}
+do_test bigrow-1.4.3 {
+  execsql {DELETE FROM t1 WHERE a='abc2'}
+  execsql {SELECT c FROM t1}
+} {xyz}
+
+do_test bigrow-1.5 {
+  execsql {
+    UPDATE t1 SET a=b, b=a;
+    SELECT b,c FROM t1
+  }
+} {abc xyz}
+do_test bigrow-1.6 {
+  execsql {
+    SELECT * FROM t1
+  }
+} [list $::big1 abc xyz]
+do_test bigrow-1.7 {
+  execsql {
+    INSERT INTO t1 VALUES('1','2','3');
+    INSERT INTO t1 VALUES('A','B','C');
+    SELECT b FROM t1 WHERE a=='1';
+  }
+} {2}
+do_test bigrow-1.8 {
+  execsql "SELECT b FROM t1 WHERE a=='$::big1'"
+} {abc}
+do_test bigrow-1.9 {
+  execsql "SELECT b FROM t1 WHERE a!='$::big1' ORDER BY a"
+} {2 B}
+
+# Try doing some indexing on big columns
+#
+do_test bigrow-2.1 {
+  execsql {
+    CREATE INDEX i1 ON t1(a)
+  }
+  execsql "SELECT b FROM t1 WHERE a=='$::big1'"
+} {abc}
+do_test bigrow-2.2 {
+  execsql {
+    UPDATE t1 SET a=b, b=a
+  }
+  execsql "SELECT b FROM t1 WHERE a=='abc'"
+} [list $::big1]
+do_test bigrow-2.3 {
+  execsql {
+    UPDATE t1 SET a=b, b=a
+  }
+  execsql "SELECT b FROM t1 WHERE a=='$::big1'"
+} {abc}
+catch {unset ::bigstr}
+catch {unset ::big1}
+catch {unset ::big2}
+
+# Mosts of the tests above were created back when rows were limited in
+# size to 64K.  Now rows can be much bigger.  Test that logic.  Also
+# make sure things work correctly at the transition boundries between
+# row sizes of 256 to 257 bytes and from 65536 to 65537 bytes.
+#
+# We begin by testing the 256..257 transition.
+#
+do_test bigrow-3.1 {
+  execsql {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c) VALUES('one','abcdefghijklmnopqrstuvwxyz0123','hi');
+  }
+  execsql {SELECT a,length(b),c FROM t1}
+} {one 30 hi}
+do_test bigrow-3.2 {
+  execsql {
+    UPDATE t1 SET b=b||b;
+    UPDATE t1 SET b=b||b;
+    UPDATE t1 SET b=b||b;
+  }
+  execsql {SELECT a,length(b),c FROM t1}
+} {one 240 hi}
+for {set i 1} {$i<10} {incr i} {
+  do_test bigrow-3.3.$i {
+    execsql "UPDATE t1 SET b=b||'$i'"
+    execsql {SELECT a,length(b),c FROM t1}
+  } "one [expr {240+$i}] hi"
+}
+
+# Now test the 65536..65537 row-size transition.
+#
+do_test bigrow-4.1 {
+  execsql {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c) VALUES('one','abcdefghijklmnopqrstuvwxyz0123','hi');
+  }
+  execsql {SELECT a,length(b),c FROM t1}
+} {one 30 hi}
+do_test bigrow-4.2 {
+  execsql {
+    UPDATE t1 SET b=b||b;
+    UPDATE t1 SET b=b||b;
+    UPDATE t1 SET b=b||b;
+    UPDATE t1 SET b=b||b;
+    UPDATE t1 SET b=b||b;
+    UPDATE t1 SET b=b||b;
+    UPDATE t1 SET b=b||b;
+    UPDATE t1 SET b=b||b;
+    UPDATE t1 SET b=b||b;
+    UPDATE t1 SET b=b||b;
+    UPDATE t1 SET b=b||b;
+    UPDATE t1 SET b=b||b;
+  }
+  execsql {SELECT a,length(b),c FROM t1}
+} {one 122880 hi}
+do_test bigrow-4.3 {
+  execsql {
+    UPDATE t1 SET b=substr(b,1,65515)
+  }
+  execsql {SELECT a,length(b),c FROM t1}
+} {one 65515 hi}
+for {set i 1} {$i<10} {incr i} {
+  do_test bigrow-4.4.$i {
+    execsql "UPDATE t1 SET b=b||'$i'"
+    execsql {SELECT a,length(b),c FROM t1}
+  } "one [expr {65515+$i}] hi"
+}
+
+# Check to make sure the library recovers safely if a row contains
+# too much data.
+#
+do_test bigrow-5.1 {
+  execsql {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c) VALUES('one','abcdefghijklmnopqrstuvwxyz0123','hi');
+  }
+  execsql {SELECT a,length(b),c FROM t1}
+} {one 30 hi}
+set i 1
+for {set sz 60} {$sz<1048560} {incr sz $sz} {
+  do_test bigrow-5.2.$i {
+    execsql {
+      UPDATE t1 SET b=b||b;
+      SELECT a,length(b),c FROM t1;
+    }
+  } "one $sz hi"
+  incr i
+}
+do_test bigrow-5.3 {
+  catchsql {UPDATE t1 SET b=b||b}
+} {0 {}}
+do_test bigrow-5.4 {
+  execsql {SELECT length(b) FROM t1}
+} 1966080
+do_test bigrow-5.5 {
+  catchsql {UPDATE t1 SET b=b||b}
+} {0 {}}
+do_test bigrow-5.6 {
+  execsql {SELECT length(b) FROM t1}
+} 3932160
+do_test bigrow-5.99 {
+  execsql {DROP TABLE t1}
+} {}
+
+finish_test
diff --git a/test/bigsort.test b/test/bigsort.test
new file mode 100644
index 0000000000000000000000000000000000000000..61c3344254c02b56a66737b65af16da176e2859a
--- /dev/null
+++ b/test/bigsort.test
@@ -0,0 +1,57 @@
+# 2014 November 26
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix bigsort
+
+#--------------------------------------------------------------------
+# At one point there was an overflow problem if the product of the 
+# cache-size and page-size was larger than 2^31. Causing an infinite 
+# loop if the product was also an integer multiple of 2^32, or 
+# inefficiency otherwise.
+#
+# This test causes thrashing on machines with smaller amounts of
+# memory.  Make sure the host has at least 8GB available before running
+# this test.
+#
+# Update: https://sqlite.org/src/info/7c96a56 adds assert() statements
+# that make this test too slow to run with SQLITE_DEBUG builds.
+#
+if {[catch {exec free | grep Mem:} out] || [lindex $out 1]<8000000} {
+  finish_test
+  return
+}
+ifcapable debug {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  PRAGMA page_size = 1024;
+  CREATE TABLE t1(a, b);
+  BEGIN;
+  WITH data(x,y) AS (
+    SELECT 1, zeroblob(10000)
+    UNION ALL
+    SELECT x+1, y FROM data WHERE x < 300000
+  )
+  INSERT INTO t1 SELECT * FROM data;
+  COMMIT;
+}
+do_execsql_test 1.1 {
+  PRAGMA cache_size = 4194304;
+  CREATE INDEX i1 ON t1(a, b);
+}
+
+
+finish_test
diff --git a/test/bind.test b/test/bind.test
new file mode 100644
index 0000000000000000000000000000000000000000..8cafaab2bcaafbf0a8571ad233567a735696409b
--- /dev/null
+++ b/test/bind.test
@@ -0,0 +1,758 @@
+# 2003 September 6
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script testing the sqlite_bind API.
+#
+# $Id: bind.test,v 1.48 2009/07/22 07:27:57 danielk1977 Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+proc sqlite_step {stmt N VALS COLS} {
+  upvar VALS vals
+  upvar COLS cols
+  set vals [list]
+  set cols [list]
+
+  set rc [sqlite3_step $stmt]
+  for {set i 0} {$i < [sqlite3_column_count $stmt]} {incr i} {
+    lappend cols [sqlite3_column_name $stmt $i]
+  }
+  for {set i 0} {$i < [sqlite3_data_count $stmt]} {incr i} {
+    lappend vals [sqlite3_column_text $stmt $i]
+  }
+
+  return $rc
+}
+
+do_test bind-1.1 {
+  set DB [sqlite3_connection_pointer db]
+  execsql {CREATE TABLE t1(a,b,c);}
+  set VM [sqlite3_prepare $DB {INSERT INTO t1 VALUES(:1,?,:abc)} -1 TAIL]
+  set TAIL
+} {}
+do_test bind-1.1.1 {
+  sqlite3_bind_parameter_count $VM
+} 3
+do_test bind-1.1.2 {
+  sqlite3_bind_parameter_name $VM 1
+} {:1}
+do_test bind-1.1.3 {
+  sqlite3_bind_parameter_name $VM 2
+} {}
+do_test bind-1.1.4 {
+  sqlite3_bind_parameter_name $VM 3
+} {:abc}
+do_test bind-1.2 {
+  sqlite_step $VM N VALUES COLNAMES
+} {SQLITE_DONE}
+do_test bind-1.3 {
+  execsql {SELECT rowid, * FROM t1}
+} {1 {} {} {}}
+do_test bind-1.4 {
+  sqlite3_reset $VM
+  sqlite_bind $VM 1 {test value 1} normal
+  sqlite_step $VM N VALUES COLNAMES
+} SQLITE_DONE
+do_test bind-1.5 {
+  execsql {SELECT rowid, * FROM t1}
+} {1 {} {} {} 2 {test value 1} {} {}}
+do_test bind-1.6 {
+  sqlite3_reset $VM
+  sqlite_bind $VM 3 {'test value 2'} normal
+  sqlite_step $VM N VALUES COLNAMES
+} SQLITE_DONE
+do_test bind-1.7 {
+  execsql {SELECT rowid, * FROM t1}
+} {1 {} {} {} 2 {test value 1} {} {} 3 {test value 1} {} {'test value 2'}}
+do_test bind-1.8 {
+  sqlite3_reset $VM
+  set sqlite_static_bind_value 123
+  sqlite_bind $VM 1 {} static
+  sqlite_bind $VM 2 {abcdefg} normal
+  sqlite_bind $VM 3 {} null
+  execsql {DELETE FROM t1}
+  sqlite_step $VM N VALUES COLNAMES
+  execsql {SELECT rowid, * FROM t1}
+} {1 123 abcdefg {}}
+do_test bind-1.9 {
+  sqlite3_reset $VM
+  sqlite_bind $VM 1 {456} normal
+  sqlite_step $VM N VALUES COLNAMES
+  execsql {SELECT rowid, * FROM t1}
+} {1 123 abcdefg {} 2 456 abcdefg {}}
+
+do_test bind-1.10 {
+   set rc [catch {
+     sqlite3_prepare db {INSERT INTO t1 VALUES($abc:123,?,:abc)} -1 TAIL
+   } msg]
+   lappend rc $msg
+} {1 {(1) near ":123": syntax error}}
+do_test bind-1.11 {
+   set rc [catch {
+     sqlite3_prepare db {INSERT INTO t1 VALUES(@abc:xyz,?,:abc)} -1 TAIL
+   } msg]
+   lappend rc $msg
+} {1 {(1) near ":xyz": syntax error}}
+
+do_test bind-1.99 {
+  sqlite3_finalize $VM
+} SQLITE_OK
+
+# Prepare the statement in different ways depending on whether or not
+# the $var processing is compiled into the library.
+#
+ifcapable {tclvar} {
+  do_test bind-2.1 {
+    execsql {
+      DELETE FROM t1;
+    }
+    set VM [sqlite3_prepare $DB {INSERT INTO t1 VALUES($one,$::two,$x(-z-))}\
+            -1 TX]
+    set TX
+  } {}
+  set v1 {$one}
+  set v2 {$::two}
+  set v3 {$x(-z-)}
+}
+ifcapable {!tclvar} {
+  do_test bind-2.1 {
+    execsql {
+      DELETE FROM t1;
+    }
+    set VM [sqlite3_prepare $DB {INSERT INTO t1 VALUES(:one,:two,:_)} -1 TX]
+    set TX
+  } {}
+  set v1 {:one}
+  set v2 {:two}
+  set v3 {:_}
+}
+
+do_test bind-2.1.1 {
+  sqlite3_bind_parameter_count $VM
+} 3
+do_test bind-2.1.2 {
+  sqlite3_bind_parameter_name $VM 1
+} $v1
+do_test bind-2.1.3 {
+  sqlite3_bind_parameter_name $VM 2
+} $v2
+do_test bind-2.1.4 {
+  sqlite3_bind_parameter_name $VM 3
+} $v3
+do_test bind-2.1.5 {
+  sqlite3_bind_parameter_index $VM $v1
+} 1
+do_test bind-2.1.6 {
+  sqlite3_bind_parameter_index $VM $v2
+} 2
+do_test bind-2.1.7 {
+  sqlite3_bind_parameter_index $VM $v3
+} 3
+do_test bind-2.1.8 {
+  sqlite3_bind_parameter_index $VM {:hi}
+} 0
+
+# 32 bit Integers
+do_test bind-2.2 {
+  sqlite3_bind_int $VM 1 123
+  sqlite3_bind_int $VM 2 456
+  sqlite3_bind_int $VM 3 789
+  sqlite_step $VM N VALUES COLNAMES
+  sqlite3_reset $VM
+  execsql {SELECT rowid, * FROM t1}
+} {1 123 456 789}
+do_test bind-2.3 {
+  sqlite3_bind_int $VM 2 -2000000000
+  sqlite3_bind_int $VM 3 2000000000
+  sqlite_step $VM N VALUES COLNAMES
+  sqlite3_reset $VM
+  execsql {SELECT rowid, * FROM t1}
+} {1 123 456 789 2 123 -2000000000 2000000000}
+do_test bind-2.4 {
+  execsql {SELECT typeof(a), typeof(b), typeof(c) FROM t1}
+} {integer integer integer integer integer integer}
+do_test bind-2.5 {
+  execsql {
+    DELETE FROM t1;
+  }
+} {}
+
+# 64 bit Integers
+do_test bind-3.1 {
+  sqlite3_bind_int64 $VM 1 32
+  sqlite3_bind_int64 $VM 2 -2000000000000
+  sqlite3_bind_int64 $VM 3 2000000000000
+  sqlite_step $VM N VALUES COLNAMES
+  sqlite3_reset $VM
+  execsql {SELECT rowid, * FROM t1}
+} {1 32 -2000000000000 2000000000000}
+do_test bind-3.2 {
+  execsql {SELECT typeof(a), typeof(b), typeof(c) FROM t1}
+} {integer integer integer}
+do_test bind-3.3 {
+  execsql {
+    DELETE FROM t1;
+  }
+} {}
+
+# Doubles
+do_test bind-4.1 {
+  sqlite3_bind_double $VM 1 1234.1234
+  sqlite3_bind_double $VM 2 0.00001
+  sqlite3_bind_double $VM 3 123456789
+  sqlite_step $VM N VALUES COLNAMES
+  sqlite3_reset $VM
+  set x [execsql {SELECT rowid, * FROM t1}]
+  regsub {1e-005} $x {1e-05} y
+  set y
+} {1 1234.1234 1e-05 123456789.0}
+do_test bind-4.2 {
+  execsql {SELECT typeof(a), typeof(b), typeof(c) FROM t1}
+} {real real real}
+do_test bind-4.3 {
+  execsql {
+    DELETE FROM t1;
+  }
+} {}
+do_test bind-4.4 {
+  sqlite3_bind_double $VM 1 NaN
+  sqlite3_bind_double $VM 2 1e300
+  sqlite3_bind_double $VM 3 -1e-300
+  sqlite_step $VM N VALUES COLNAMES
+  sqlite3_reset $VM
+  set x [execsql {SELECT rowid, * FROM t1}]
+  regsub {1e-005} $x {1e-05} y
+  set y
+} {1 {} 1e+300 -1e-300}
+do_test bind-4.5 {
+  execsql {SELECT typeof(a), typeof(b), typeof(c) FROM t1}
+} {null real real}
+do_test bind-4.6 {
+  execsql {
+    DELETE FROM t1;
+  }
+} {}
+
+# NULL
+do_test bind-5.1 {
+  sqlite3_bind_null $VM 1
+  sqlite3_bind_null $VM 2
+  sqlite3_bind_null $VM 3 
+  sqlite_step $VM N VALUES COLNAMES
+  sqlite3_reset $VM
+  execsql {SELECT rowid, * FROM t1}
+} {1 {} {} {}}
+do_test bind-5.2 {
+  execsql {SELECT typeof(a), typeof(b), typeof(c) FROM t1}
+} {null null null}
+do_test bind-5.3 {
+  execsql {
+    DELETE FROM t1;
+  }
+} {}
+
+# UTF-8 text
+do_test bind-6.1 {
+  sqlite3_bind_text $VM 1 hellothere 5
+  sqlite3_bind_text $VM 2 ".." 1
+  sqlite3_bind_text $VM 3 world\000 -1
+  sqlite_step $VM N VALUES COLNAMES
+  sqlite3_reset $VM
+  execsql {SELECT rowid, * FROM t1}
+} {1 hello . world}
+do_test bind-6.2 {
+  execsql {SELECT typeof(a), typeof(b), typeof(c) FROM t1}
+} {text text text}
+do_test bind-6.3 {
+  execsql {
+    DELETE FROM t1;
+  }
+} {}
+
+# Make sure zeros in a string work.
+#
+do_test bind-6.4 {
+  db eval {DELETE FROM t1}
+  sqlite3_bind_text $VM 1 hello\000there\000 12
+  sqlite3_bind_text $VM 2 hello\000there\000 11
+  sqlite3_bind_text $VM 3 hello\000there\000 -1
+  sqlite_step $VM N VALUES COLNAMES
+  sqlite3_reset $VM
+  execsql {SELECT * FROM t1}
+} {hello hello hello}
+set enc [db eval {PRAGMA encoding}]
+if {$enc=="UTF-8" || $enc==""} {
+  do_test bind-6.5 {
+    execsql {SELECT  hex(a), hex(b), hex(c) FROM t1}
+  } {68656C6C6F00746865726500 68656C6C6F007468657265 68656C6C6F}
+} elseif {$enc=="UTF-16le"} {
+  do_test bind-6.5 {
+    execsql {SELECT  hex(a), hex(b), hex(c) FROM t1}
+  } {680065006C006C006F000000740068006500720065000000 680065006C006C006F00000074006800650072006500 680065006C006C006F00}
+} elseif {$enc=="UTF-16be"} {
+  do_test bind-6.5 {
+    execsql {SELECT  hex(a), hex(b), hex(c) FROM t1}
+  } {00680065006C006C006F0000007400680065007200650000 00680065006C006C006F000000740068006500720065 00680065006C006C006F}
+} else {
+  do_test bind-6.5 {
+    set "Unknown database encoding: $::enc"
+  } {}
+}
+do_test bind-6.6 {
+  execsql {SELECT typeof(a), typeof(b), typeof(c) FROM t1}
+} {text text text}
+do_test bind-6.7 {
+  execsql {
+    DELETE FROM t1;
+  }
+} {}
+
+# UTF-16 text
+ifcapable {utf16} {
+  do_test bind-7.1 {
+    sqlite3_bind_text16 $VM 1 [encoding convertto unicode hellothere] 10
+    sqlite3_bind_text16 $VM 2 [encoding convertto unicode ""] 0
+    sqlite3_bind_text16 $VM 3 [encoding convertto unicode world] 10
+    sqlite_step $VM N VALUES COLNAMES
+    sqlite3_reset $VM
+    execsql {SELECT rowid, * FROM t1}
+  } {1 hello {} world}
+  do_test bind-7.2 {
+    execsql {SELECT typeof(a), typeof(b), typeof(c) FROM t1}
+  } {text text text}
+  do_test bind-7.3 {
+    db eval {DELETE FROM t1}
+    sqlite3_bind_text16 $VM 1 [encoding convertto unicode hi\000yall\000] 16
+    sqlite3_bind_text16 $VM 2 [encoding convertto unicode hi\000yall\000] 14
+    sqlite3_bind_text16 $VM 3 [encoding convertto unicode hi\000yall\000] -1
+    sqlite_step $VM N VALUES COLNAMES
+    sqlite3_reset $VM
+    execsql {SELECT * FROM t1}
+  } {hi hi hi}
+  if {$enc=="UTF-8"} {
+    do_test bind-7.4 {
+      execsql {SELECT hex(a), hex(b), hex(c) FROM t1}
+    } {68690079616C6C00 68690079616C6C 6869}
+  } elseif {$enc=="UTF-16le"} {
+    do_test bind-7.4 {
+      execsql {SELECT hex(a), hex(b), hex(c) FROM t1}
+    } {680069000000790061006C006C000000 680069000000790061006C006C00 68006900}
+  } elseif {$enc=="UTF-16be"} {
+    do_test bind-7.4 {
+      execsql {SELECT hex(a), hex(b), hex(c) FROM t1}
+    } {00680069000000790061006C006C0000 00680069000000790061006C006C 00680069}
+  }
+  do_test bind-7.5 {
+    execsql {SELECT typeof(a), typeof(b), typeof(c) FROM t1}
+  } {text text text}
+}
+do_test bind-7.99 {
+  execsql {DELETE FROM t1;}
+} {}
+
+# Test that the 'out of range' error works.
+do_test bind-8.1 {
+  catch { sqlite3_bind_null $VM 0 }
+} {1}
+do_test bind-8.2 {
+  sqlite3_errmsg $DB
+} {column index out of range}
+ifcapable {utf16} {
+  do_test bind-8.3 {
+    encoding convertfrom unicode [sqlite3_errmsg16 $DB]
+  } {column index out of range}
+}
+do_test bind-8.4 {
+  sqlite3_bind_null $VM 1 
+  sqlite3_errmsg $DB
+} {not an error}
+do_test bind-8.5 {
+  catch { sqlite3_bind_null $VM 4 }
+} {1}
+do_test bind-8.6 {
+  sqlite3_errmsg $DB
+} {column index out of range}
+ifcapable {utf16} {
+  do_test bind-8.7 {
+    encoding convertfrom unicode [sqlite3_errmsg16 $DB]
+  } {column index out of range}
+}
+
+do_test bind-8.8 {
+  catch { sqlite3_bind_blob $VM 0 "abc" 3 }
+} {1}
+do_test bind-8.9 {
+  catch { sqlite3_bind_blob $VM 4 "abc" 3 }
+} {1}
+do_test bind-8.10 {
+  catch { sqlite3_bind_text $VM 0 "abc" 3 }
+} {1}
+ifcapable {utf16} {
+  do_test bind-8.11 {
+    catch { sqlite3_bind_text16 $VM 4 "abc" 2 }
+  } {1}
+}
+do_test bind-8.12 {
+  catch { sqlite3_bind_int $VM 0 5 }
+} {1}
+do_test bind-8.13 {
+  catch { sqlite3_bind_int $VM 4 5 }
+} {1}
+do_test bind-8.14 {
+  catch { sqlite3_bind_double $VM 0 5.0 }
+} {1}
+do_test bind-8.15 {
+  catch { sqlite3_bind_double $VM 4 6.0 }
+} {1}
+
+do_test bind-8.99 {
+  sqlite3_finalize $VM
+} SQLITE_OK
+
+set iMaxVar $SQLITE_MAX_VARIABLE_NUMBER
+set zError "(1) variable number must be between ?1 and ?$iMaxVar"
+do_test bind-9.1 {
+  execsql {
+    CREATE TABLE t2(a,b,c,d,e,f);
+  }
+  set rc [catch {
+    sqlite3_prepare $DB {
+      INSERT INTO t2(a) VALUES(?0)
+    } -1 TAIL
+  } msg]
+  lappend rc $msg
+} [list 1 $zError]
+do_test bind-9.2 {
+  set rc [catch {
+    sqlite3_prepare $DB "INSERT INTO t2(a) VALUES(?[expr $iMaxVar+1])" -1 TAIL
+  } msg]
+  lappend rc $msg
+} [list 1 $zError]
+do_test bind-9.3.1 {
+  set VM [
+    sqlite3_prepare $DB "
+      INSERT INTO t2(a,b) VALUES(?1,?$iMaxVar)
+    " -1 TAIL
+  ]
+  sqlite3_bind_parameter_count $VM
+} $iMaxVar
+catch {sqlite3_finalize $VM}
+do_test bind-9.3.2 {
+  set VM [
+    sqlite3_prepare $DB "
+      INSERT INTO t2(a,b) VALUES(?2,?[expr $iMaxVar - 1])
+    " -1 TAIL
+  ]
+  sqlite3_bind_parameter_count $VM
+} [expr {$iMaxVar - 1}]
+catch {sqlite3_finalize $VM}
+do_test bind-9.4 {
+  set VM [
+    sqlite3_prepare $DB "
+      INSERT INTO t2(a,b,c,d) VALUES(?1,?[expr $iMaxVar - 2],?,?)
+    " -1 TAIL
+  ]
+  sqlite3_bind_parameter_count $VM
+} $iMaxVar
+do_test bind-9.5 {
+  sqlite3_bind_int $VM 1 1
+  sqlite3_bind_int $VM [expr $iMaxVar - 2] 999
+  sqlite3_bind_int $VM [expr $iMaxVar - 1] 1000
+  sqlite3_bind_int $VM $iMaxVar 1001
+  sqlite3_step $VM
+} SQLITE_DONE
+do_test bind-9.6 {
+  sqlite3_finalize $VM
+} SQLITE_OK
+do_test bind-9.7 {
+  execsql {SELECT * FROM t2}
+} {1 999 1000 1001 {} {}}
+
+ifcapable {tclvar} {
+  do_test bind-10.1 {
+    set VM [
+      sqlite3_prepare $DB {
+        INSERT INTO t2(a,b,c,d,e,f) VALUES(:abc,$abc,:abc,$ab,$abc,:abc)
+      } -1 TAIL
+    ]
+    sqlite3_bind_parameter_count $VM
+  } 3
+  set v1 {$abc}
+  set v2 {$ab}
+}
+ifcapable {!tclvar} {
+  do_test bind-10.1 {
+    set VM [
+      sqlite3_prepare $DB {
+        INSERT INTO t2(a,b,c,d,e,f) VALUES(:abc,:xyz,:abc,:xy,:xyz,:abc)
+      } -1 TAIL
+    ]
+    sqlite3_bind_parameter_count $VM
+  } 3
+  set v1 {:xyz}
+  set v2 {:xy}
+}
+do_test bind-10.2 {
+  sqlite3_bind_parameter_index $VM :abc
+} 1
+do_test bind-10.3 {
+  sqlite3_bind_parameter_index $VM $v1
+} 2
+do_test bind-10.4 {
+  sqlite3_bind_parameter_index $VM $v2
+} 3
+do_test bind-10.5 {
+  sqlite3_bind_parameter_name $VM 1
+} :abc
+do_test bind-10.6 {
+  sqlite3_bind_parameter_name $VM 2
+} $v1
+do_test bind-10.7 {
+  sqlite3_bind_parameter_name $VM 3
+} $v2
+do_test bind-10.7.1 {
+  sqlite3_bind_parameter_name 0 1   ;# Ignore if VM is NULL
+} {}
+do_test bind-10.7.2 {
+  sqlite3_bind_parameter_name $VM 0 ;# Ignore if index too small
+} {}
+do_test bind-10.7.3 {
+  sqlite3_bind_parameter_name $VM 4 ;# Ignore if index is too big
+} {}
+do_test bind-10.8 {
+  sqlite3_bind_int $VM 1 1
+  sqlite3_bind_int $VM 2 2
+  sqlite3_bind_int $VM 3 3
+  sqlite3_step $VM
+} SQLITE_DONE
+do_test bind-10.8.1 {
+  # Binding attempts after program start should fail
+  set rc [catch {
+    sqlite3_bind_int $VM 1 1
+  } msg]
+  lappend rc $msg
+} {1 {}}
+do_test bind-10.9 {
+  sqlite3_finalize $VM
+} SQLITE_OK
+do_test bind-10.10 {
+  execsql {SELECT * FROM t2}
+} {1 999 1000 1001 {} {} 1 2 1 3 2 1}
+
+# Ticket #918
+#
+do_test bind-10.11 {
+  # catch {sqlite3_finalize $VM}
+  set VM [
+    sqlite3_prepare $DB {
+      INSERT INTO t2(a,b,c,d,e,f) VALUES(:abc,?,?4,:pqr,:abc,?4)
+    } -1 TAIL
+  ]
+  sqlite3_bind_parameter_count $VM
+} 5
+do_test bind-10.11.1 {
+  sqlite3_bind_parameter_index 0 :xyz  ;# ignore NULL VM arguments
+} 0
+do_test bind-10.12 {
+  sqlite3_bind_parameter_index $VM :xyz
+} 0
+do_test bind-10.13 {
+  sqlite3_bind_parameter_index $VM {}
+} 0
+do_test bind-10.14 {
+  sqlite3_bind_parameter_index $VM :pqr
+} 5
+do_test bind-10.15 {
+  sqlite3_bind_parameter_index $VM ?4
+} 4
+do_test bind-10.16 {
+  sqlite3_bind_parameter_name $VM 1
+} :abc
+do_test bind-10.17 {
+  sqlite3_bind_parameter_name $VM 2
+} {}
+do_test bind-10.18 {
+  sqlite3_bind_parameter_name $VM 3
+} {}
+do_test bind-10.19 {
+  sqlite3_bind_parameter_name $VM 4
+} {?4}
+do_test bind-10.20 {
+  sqlite3_bind_parameter_name $VM 5
+} :pqr
+catch {sqlite3_finalize $VM}
+
+# Make sure we catch an unterminated "(" in a Tcl-style variable name
+#
+ifcapable tclvar {
+  do_test bind-11.1 {
+    catchsql {SELECT * FROM sqlite_master WHERE name=$abc(123 and sql NOT NULL;}
+  } {1 {unrecognized token: "$abc(123"}}
+}
+
+if {[execsql {pragma encoding}]=="UTF-8"} {
+  # Test the ability to bind text that contains embedded '\000' characters.
+  # Make sure we can recover the entire input string.
+  #
+  do_test bind-12.1 {
+    execsql {
+      CREATE TABLE t3(x BLOB);
+    }
+    set VM [sqlite3_prepare $DB {INSERT INTO t3 VALUES(?)} -1 TAIL]
+    sqlite_bind  $VM 1 not-used blob10
+    sqlite3_step $VM
+    sqlite3_finalize $VM
+    execsql {
+      SELECT typeof(x), length(x), quote(x),
+             length(cast(x AS BLOB)), quote(cast(x AS BLOB)) FROM t3
+    }
+  } {text 3 'abc' 10 X'6162630078797A007071'}
+  do_test bind-12.2 {
+    sqlite3_create_function $DB
+    execsql {
+      SELECT quote(cast(x_coalesce(x) AS blob)) FROM t3
+    }
+  } {X'6162630078797A007071'}
+}
+
+# Test the operation of sqlite3_clear_bindings
+#
+do_test bind-13.1 {
+  set VM [sqlite3_prepare $DB {SELECT ?,?,?} -1 TAIL]
+  sqlite3_step $VM
+  list [sqlite3_column_type $VM 0] [sqlite3_column_type $VM 1] \
+               [sqlite3_column_type $VM 2]
+} {NULL NULL NULL}
+do_test bind-13.2 {
+  sqlite3_reset $VM
+  sqlite3_bind_int $VM 1 1
+  sqlite3_bind_int $VM 2 2
+  sqlite3_bind_int $VM 3 3
+  sqlite3_step $VM
+  list [sqlite3_column_type $VM 0] [sqlite3_column_type $VM 1] \
+               [sqlite3_column_type $VM 2]
+} {INTEGER INTEGER INTEGER}
+do_test bind-13.3 {
+  sqlite3_reset $VM
+  sqlite3_step $VM
+  list [sqlite3_column_type $VM 0] [sqlite3_column_type $VM 1] \
+               [sqlite3_column_type $VM 2]
+} {INTEGER INTEGER INTEGER}
+do_test bind-13.4 {
+  sqlite3_reset $VM
+  sqlite3_clear_bindings $VM
+  sqlite3_step $VM
+  list [sqlite3_column_type $VM 0] [sqlite3_column_type $VM 1] \
+               [sqlite3_column_type $VM 2]
+} {NULL NULL NULL}
+sqlite3_finalize $VM
+
+#--------------------------------------------------------------------
+# These tests attempt to reproduce bug #3463.
+#
+proc param_names {db zSql} {
+  set ret [list]
+  set VM [sqlite3_prepare db $zSql -1 TAIL]
+  for {set ii 1} {$ii <= [sqlite3_bind_parameter_count $VM]} {incr ii} {
+    lappend ret [sqlite3_bind_parameter_name $VM $ii]
+  }
+  sqlite3_finalize $VM
+  set ret
+}
+
+do_test bind-14.1 {
+  param_names db { SELECT @a, @b }
+} {@a @b}
+do_test bind-14.2 {
+  param_names db { SELECT NULL FROM (SELECT NULL) WHERE @a = @b }
+} {@a @b}
+do_test bind-14.3 {
+  param_names db { SELECT @a FROM (SELECT NULL) WHERE 1 = @b }
+} {@a @b}
+do_test bind-14.4 {
+  param_names db { SELECT @a, @b FROM (SELECT NULL) }
+} {@a @b}
+
+#--------------------------------------------------------------------------
+# Tests of the OP_Variable opcode where P3>1
+#
+do_test bind-15.1 {
+  db eval {CREATE TABLE t4(a,b,c,d,e,f,g,h);}
+  set VM [sqlite3_prepare db {
+       INSERT INTO t4(a,b,c,d,f,g,h,e) VALUES(?,?,?,?,?,?,?,?)
+  } -1 TAIL]
+  sqlite3_bind_int $VM 1 1
+  sqlite3_bind_int $VM 2 2
+  sqlite3_bind_int $VM 3 3
+  sqlite3_bind_int $VM 4 4
+  sqlite3_bind_int $VM 5 5
+  sqlite3_bind_int $VM 6 6
+  sqlite3_bind_int $VM 7 7
+  sqlite3_bind_int $VM 8 8
+  sqlite3_step $VM
+  sqlite3_finalize $VM
+  db eval {SELECT * FROM t4}
+} {1 2 3 4 8 5 6 7}
+do_test bind-15.2 {
+  db eval {DELETE FROM t4}
+  set VM [sqlite3_prepare db {
+       INSERT INTO t4(a,b,c,d,e,f,g,h) VALUES(?,?,?,?,?,?,?,?)
+  } -1 TAIL]
+  sqlite3_bind_int $VM 1 1
+  sqlite3_bind_int $VM 2 2
+  sqlite3_bind_int $VM 3 3
+  sqlite3_bind_int $VM 4 4
+  sqlite3_bind_int $VM 5 5
+  sqlite3_bind_int $VM 6 6
+  sqlite3_bind_int $VM 7 7
+  sqlite3_bind_int $VM 8 8
+  sqlite3_step $VM
+  sqlite3_finalize $VM
+  db eval {SELECT * FROM t4}
+} {1 2 3 4 5 6 7 8}
+do_test bind-15.3 {
+  db eval {DELETE FROM t4}
+  set VM [sqlite3_prepare db {
+       INSERT INTO t4(h,g,f,e,d,c,b,a) VALUES(?,?,?,?,?,?,?,?)
+  } -1 TAIL]
+  sqlite3_bind_int $VM 1 1
+  sqlite3_bind_int $VM 2 2
+  sqlite3_bind_int $VM 3 3
+  sqlite3_bind_int $VM 4 4
+  sqlite3_bind_int $VM 5 5
+  sqlite3_bind_int $VM 6 6
+  sqlite3_bind_int $VM 7 7
+  sqlite3_bind_int $VM 8 8
+  sqlite3_step $VM
+  sqlite3_finalize $VM
+  db eval {SELECT * FROM t4}
+} {8 7 6 5 4 3 2 1}
+do_test bind-15.4 {
+  db eval {DELETE FROM t4}
+  set VM [sqlite3_prepare db {
+       INSERT INTO t4(a,b,c,d,e,f,g,h) VALUES(?,?,?,?4,?,?6,?,?)
+  } -1 TAIL]
+  sqlite3_bind_int $VM 1 1
+  sqlite3_bind_int $VM 2 2
+  sqlite3_bind_int $VM 3 3
+  sqlite3_bind_int $VM 4 4
+  sqlite3_bind_int $VM 5 5
+  sqlite3_bind_int $VM 6 6
+  sqlite3_bind_int $VM 7 7
+  sqlite3_bind_int $VM 8 8
+  sqlite3_step $VM
+  sqlite3_finalize $VM
+  db eval {SELECT * FROM t4}
+} {1 2 3 4 5 6 7 8}
+
+finish_test
diff --git a/test/bind2.test b/test/bind2.test
new file mode 100644
index 0000000000000000000000000000000000000000..1ebf35c2e006cd9f5d8468146faf6374360b2650
--- /dev/null
+++ b/test/bind2.test
@@ -0,0 +1,63 @@
+# 2022 Feb 10
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix bind2
+
+
+# Test that using bind_value() on a REAL sqlite3_value that was stored
+# as an INTEGER works properly.
+#
+#   1.1: An IntReal value read from a table,
+#   1.2: IntReal values obtained via the sqlite3_preupdate_old|new() 
+#        interfaces.
+# 
+do_execsql_test 1.0 { 
+  CREATE TABLE t1(a REAL);
+  INSERT INTO t1 VALUES(42.0);
+  SELECT * FROM t1;
+} {42.0}
+
+do_test 1.1 {
+  set stmt [sqlite3_prepare db "SELECT ?" -1 tail]
+  sqlite3_bind_value_from_select $stmt 1 "SELECT a FROM t1"
+  sqlite3_step $stmt
+  sqlite3_column_text $stmt 0
+} {42.0}
+sqlite3_finalize $stmt
+
+ifcapable !preupdate {
+  finish_test
+  return
+}
+
+proc preup {args} {
+  set stmt [sqlite3_prepare db "SELECT ?" -1 tail]
+  sqlite3_bind_value_from_preupdate $stmt 1 old 0
+  sqlite3_step $stmt
+  lappend ::reslist [sqlite3_column_text $stmt 0]
+  sqlite3_reset $stmt
+  sqlite3_bind_value_from_preupdate $stmt 1 new 0
+  sqlite3_step $stmt
+  lappend ::reslist [sqlite3_column_text $stmt 0]
+  sqlite3_finalize $stmt
+}
+db preupdate hook preup
+
+do_test 1.2 {
+  set ::reslist [list]
+  execsql { UPDATE t1 SET a=43; }
+  set ::reslist
+} {42.0 43.0}
+
+finish_test
diff --git a/test/bindxfer.test b/test/bindxfer.test
new file mode 100644
index 0000000000000000000000000000000000000000..393aab96d4e4132fab75f01d91fa3badf72db7af
--- /dev/null
+++ b/test/bindxfer.test
@@ -0,0 +1,76 @@
+# 2005 April 21
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script testing the sqlite_transfer_bindings() API.
+#
+# $Id: bindxfer.test,v 1.9 2009/04/17 11:56:28 drh Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+proc sqlite_step {stmt VALS COLS} {
+  upvar #0 $VALS vals
+  upvar #0 $COLS cols
+  set vals [list]
+  set cols [list]
+
+  set rc [sqlite3_step $stmt]
+  for {set i 0} {$i < [sqlite3_column_count $stmt]} {incr i} {
+    lappend cols [sqlite3_column_name $stmt $i]
+  }
+  for {set i 0} {$i < [sqlite3_data_count $stmt]} {incr i} {
+    lappend vals [sqlite3_column_text $stmt $i]
+  }
+
+  return $rc
+}
+
+do_test bindxfer-1.1 {
+  set DB [sqlite3_connection_pointer db]
+  execsql {CREATE TABLE t1(a,b,c);}
+  set VM1 [sqlite3_prepare $DB {SELECT ?, ?, ?} -1 TAIL]
+  set TAIL
+} {}
+do_test bindxfer-1.2 {
+  sqlite3_bind_parameter_count $VM1
+} 3
+do_test bindxfer-1.3 {
+  set VM2 [sqlite3_prepare $DB {SELECT ?, ?, ?} -1 TAIL]
+  set TAIL
+} {}
+do_test bindxfer-1.4 {
+  sqlite3_bind_parameter_count $VM2
+} 3
+ifcapable deprecated {
+  do_test bindxfer-1.5 {
+    sqlite_bind $VM1 1 one normal
+    set sqlite_static_bind_value two
+    sqlite_bind $VM1 2 {} static
+    sqlite_bind $VM1 3 {} null
+    sqlite3_transfer_bindings $VM1 $VM2
+    sqlite_step $VM1 VALUES COLNAMES
+  } SQLITE_ROW
+  do_test bindxfer-1.6 {
+    set VALUES
+  } {{} {} {}}
+  do_test bindxfer-1.7 {
+    sqlite_step $VM2 VALUES COLNAMES
+  } SQLITE_ROW
+  do_test bindxfer-1.8 {
+    set VALUES
+  } {one two {}}
+}
+catch {sqlite3_finalize $VM1}
+catch {sqlite3_finalize $VM2}
+
+
+finish_test
diff --git a/test/bitvec.test b/test/bitvec.test
new file mode 100644
index 0000000000000000000000000000000000000000..d27f9274563ef435e6dd14dd64e028e50dcf7ceb
--- /dev/null
+++ b/test/bitvec.test
@@ -0,0 +1,195 @@
+# 2008 February 18
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Unit testing of the Bitvec object.
+#
+# $Id: bitvec.test,v 1.4 2009/04/01 23:49:04 drh Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# The built-in test logic must be operational in order for
+# this test to work.
+ifcapable !builtin_test {
+  finish_test
+  return
+}
+
+# Test that sqlite3BitvecBuiltinTest correctly reports errors
+# that are deliberately introduced.
+#
+do_test bitvec-1.0.1 {
+  sqlite3BitvecBuiltinTest 400 {5 1 1 1 0}
+} 1
+do_test bitvec-1.0.2 {
+  sqlite3BitvecBuiltinTest 400 {5 1 234 1 0}
+} 234
+
+# Run test cases that set every bit in vectors of various sizes.
+# for larger cases, this should cycle the bit vector representation
+# from hashing into subbitmaps.  The subbitmaps should start as
+# hashes then change to either subbitmaps or linear maps, depending
+# on their size.
+#
+do_test bitvec-1.1 {
+  sqlite3BitvecBuiltinTest 400 {1 400 1 1 0}
+} 0
+do_test bitvec-1.2 {
+  sqlite3BitvecBuiltinTest 4000 {1 4000 1 1 0}
+} 0
+do_test bitvec-1.3 {
+  sqlite3BitvecBuiltinTest 40000 {1 40000 1 1 0}
+} 0
+do_test bitvec-1.4 {
+  sqlite3BitvecBuiltinTest 400000 {1 400000 1 1 0}
+} 0
+
+# By specifying a larger increments, we spread the load around.
+#
+do_test bitvec-1.5 {
+  sqlite3BitvecBuiltinTest 400 {1 400 1 7 0}
+} 0
+do_test bitvec-1.6 {
+  sqlite3BitvecBuiltinTest 4000 {1 4000 1 7 0}
+} 0
+do_test bitvec-1.7 {
+  sqlite3BitvecBuiltinTest 40000 {1 40000 1 7 0}
+} 0
+do_test bitvec-1.8 {
+  sqlite3BitvecBuiltinTest 400000 {1 400000 1 7 0}
+} 0
+
+# First fill up the bitmap with ones,  then go through and
+# clear all the bits.  This will stress the clearing mechanism.
+#
+do_test bitvec-1.9 {
+  sqlite3BitvecBuiltinTest 400 {1 400 1 1 2 400 1 1 0}
+} 0
+do_test bitvec-1.10 {
+  sqlite3BitvecBuiltinTest 4000 {1 4000 1 1 2 4000 1 1 0}
+} 0
+do_test bitvec-1.11 {
+  sqlite3BitvecBuiltinTest 40000 {1 40000 1 1 2 40000 1 1 0}
+} 0
+do_test bitvec-1.12 {
+  sqlite3BitvecBuiltinTest 400000 {1 400000 1 1 2 400000 1 1 0}
+} 0
+
+do_test bitvec-1.13 {
+  sqlite3BitvecBuiltinTest 400 {1 400 1 1 2 400 1 7 0}
+} 0
+do_test bitvec-1.15 {
+  sqlite3BitvecBuiltinTest 4000 {1 4000 1 1 2 4000 1 7 0}
+} 0
+do_test bitvec-1.16 {
+  sqlite3BitvecBuiltinTest 40000 {1 40000 1 1 2 40000 1 77 0}
+} 0
+do_test bitvec-1.17 {
+  sqlite3BitvecBuiltinTest 400000 {1 400000 1 1 2 400000 1 777 0}
+} 0
+
+do_test bitvec-1.18 {
+  sqlite3BitvecBuiltinTest 400000 {1 5000 100000 1 2 400000 1 37 0}
+} 0
+
+# Attempt to induce hash collisions.  
+#
+unset -nocomplain start
+unset -nocomplain incr
+foreach start {1 2 3 4 5 6 7 8} {
+  foreach incr {124 125} {
+    do_test bitvec-1.20.$start.$incr {
+      set prog [list 1 60 $::start $::incr 2 5000 1 1 0]
+      sqlite3BitvecBuiltinTest 5000 $prog
+    } 0
+  }
+}
+
+do_test bitvec-1.30.big_and_slow {
+  sqlite3BitvecBuiltinTest 17000000 {1 17000000 1 1 2 17000000 1 1 0}
+} 0
+
+
+# Test setting and clearing a random subset of bits.
+#
+do_test bitvec-2.1 {
+  sqlite3BitvecBuiltinTest 4000 {3 2000 4 2000 0}
+} 0
+do_test bitvec-2.2 {
+  sqlite3BitvecBuiltinTest 4000 {3 1000 4 1000 3 1000 4 1000 3 1000 4 1000
+                                 3 1000 4 1000 3 1000 4 1000 3 1000 4 1000 0}
+} 0
+do_test bitvec-2.3 {
+  sqlite3BitvecBuiltinTest 400000 {3 10 0}
+} 0
+do_test bitvec-2.4 {
+  sqlite3BitvecBuiltinTest 4000 {3 10 2 4000 1 1 0}
+} 0
+do_test bitvec-2.5 {
+  sqlite3BitvecBuiltinTest 5000 {3 20 2 5000 1 1 0}
+} 0
+do_test bitvec-2.6 {
+  sqlite3BitvecBuiltinTest 50000 {3 60 2 50000 1 1 0}
+} 0
+do_test bitvec-2.7 {
+  sqlite3BitvecBuiltinTest 5000 {
+          1 25 121 125
+          1 50 121 125
+          2 25 121 125
+          0
+  }
+} 0
+
+# This procedure runs sqlite3BitvecBuiltinTest with argments "n" and
+# "program".  But it also causes a malloc error to occur after the
+# "failcnt"-th malloc.  The result should be "0" if no malloc failure
+# occurs or "-1" if there is a malloc failure.
+#
+proc bitvec_malloc_test {label failcnt n program} {
+  do_test $label [subst {
+    sqlite3_memdebug_fail $failcnt
+    set x \[sqlite3BitvecBuiltinTest $n [list $program]\]
+    set nFail \[sqlite3_memdebug_fail -1\]
+    if {\$nFail==0} {
+      set ::go 0
+      set x -1
+    }
+    set x
+  }] -1
+}
+
+# Make sure malloc failures are handled sanily.
+#
+unset -nocomplain n
+unset -nocomplain go
+set go 1
+save_prng_state
+for {set n 0} {$go} {incr n} {
+  restore_prng_state
+  bitvec_malloc_test bitvec-3.1.$n $n 5000 {
+      3 60 2 5000 1 1 3 60 2 5000 1 1 3 60 2 5000 1 1 0
+  }
+}
+set go 1
+for {set n 0} {$go} {incr n} {
+  restore_prng_state
+  bitvec_malloc_test bitvec-3.2.$n $n 5000 {
+      3 600 2 5000 1 1 3 600 2 5000 1 1 3 600 2 5000 1 1 0
+  }
+}
+set go 1
+for {set n 1} {$go} {incr n} {
+  bitvec_malloc_test bitvec-3.3.$n $n 50000 {1 50000 1 1 0}
+}
+
+finish_test
+return
diff --git a/test/blob.test b/test/blob.test
new file mode 100644
index 0000000000000000000000000000000000000000..b1aae381a9f16b5c1688a812f6725a795f14ed98
--- /dev/null
+++ b/test/blob.test
@@ -0,0 +1,147 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# $Id: blob.test,v 1.8 2009/04/28 18:00:27 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable {!bloblit} {
+  finish_test
+  return
+}
+
+proc bin_to_hex {blob} {
+  set bytes {}
+  binary scan $blob \c* bytes
+  set bytes2 [list]
+  foreach b $bytes {lappend bytes2 [format %02X [expr $b & 0xFF]]}
+  join $bytes2 {}
+}
+
+# Simplest possible case. Specify a blob literal
+do_test blob-1.0 {
+  set blob [execsql {SELECT X'01020304';}]
+  bin_to_hex [lindex $blob 0]
+} {01020304}
+do_test blob-1.1 {
+  set blob [execsql {SELECT x'ABCDEF';}]
+  bin_to_hex [lindex $blob 0]
+} {ABCDEF}
+do_test blob-1.2 {
+  set blob [execsql {SELECT x'';}]
+  bin_to_hex [lindex $blob 0]
+} {}
+do_test blob-1.3 {
+  set blob [execsql {SELECT x'abcdEF12';}]
+  bin_to_hex [lindex $blob 0]
+} {ABCDEF12}
+do_test blob-1.3.2 {
+  set blob [execsql {SELECT x'0123456789abcdefABCDEF';}]
+  bin_to_hex [lindex $blob 0]
+} {0123456789ABCDEFABCDEF}
+
+# Try some syntax errors in blob literals.
+do_test blob-1.4 {
+  catchsql {SELECT X'01020k304', 100}
+} {1 {unrecognized token: "X'01020k304'"}}
+do_test blob-1.5 {
+  catchsql {SELECT X'01020, 100}
+} {1 {unrecognized token: "X'01020, 100"}}
+do_test blob-1.6 {
+  catchsql {SELECT X'01020 100'}
+} {1 {unrecognized token: "X'01020 100'"}}
+do_test blob-1.7 {
+  catchsql {SELECT X'01001'}
+} {1 {unrecognized token: "X'01001'"}}
+do_test blob-1.8 {
+  catchsql {SELECT x'012/45'}
+} {1 {unrecognized token: "x'012/45'"}}
+do_test blob-1.9 {
+  catchsql {SELECT x'012:45'}
+} {1 {unrecognized token: "x'012:45'"}}
+do_test blob-1.10 {
+  catchsql {SELECT x'012@45'}
+} {1 {unrecognized token: "x'012@45'"}}
+do_test blob-1.11 {
+  catchsql {SELECT x'012G45'}
+} {1 {unrecognized token: "x'012G45'"}}
+do_test blob-1.12 {
+  catchsql {SELECT x'012`45'}
+} {1 {unrecognized token: "x'012`45'"}}
+do_test blob-1.13 {
+  catchsql {SELECT x'012g45'}
+} {1 {unrecognized token: "x'012g45'"}}
+
+
+# Insert a blob into a table and retrieve it.
+do_test blob-2.0 {
+  execsql {
+    CREATE TABLE t1(a BLOB, b BLOB);
+    INSERT INTO t1 VALUES(X'123456', x'7890ab');
+    INSERT INTO t1 VALUES(X'CDEF12', x'345678');
+  }
+  set blobs [execsql {SELECT * FROM t1}]
+  set blobs2 [list]
+  foreach b $blobs {lappend blobs2 [bin_to_hex $b]}
+  set blobs2
+} {123456 7890AB CDEF12 345678}
+
+# An index on a blob column
+do_test blob-2.1 {
+  execsql {
+    CREATE INDEX i1 ON t1(a);
+  }
+  set blobs [execsql {SELECT * FROM t1}]
+  set blobs2 [list]
+  foreach b $blobs {lappend blobs2 [bin_to_hex $b]}
+  set blobs2
+} {123456 7890AB CDEF12 345678}
+do_test blob-2.2 {
+  set blobs [execsql {SELECT * FROM t1 where a = X'123456'}]
+  set blobs2 [list]
+  foreach b $blobs {lappend blobs2 [bin_to_hex $b]}
+  set blobs2
+} {123456 7890AB}
+do_test blob-2.3 {
+  set blobs [execsql {SELECT * FROM t1 where a = X'CDEF12'}]
+  set blobs2 [list]
+  foreach b $blobs {lappend blobs2 [bin_to_hex $b]}
+  set blobs2
+} {CDEF12 345678}
+do_test blob-2.4 {
+  set blobs [execsql {SELECT * FROM t1 where a = X'CD12'}]
+  set blobs2 [list]
+  foreach b $blobs {lappend blobs2 [bin_to_hex $b]}
+  set blobs2
+} {}
+
+# Try to bind a blob value to a prepared statement.
+do_test blob-3.0 {
+  sqlite3 db2 test.db
+  set DB [sqlite3_connection_pointer db2]
+  set STMT [sqlite3_prepare $DB "DELETE FROM t1 WHERE a = ?" -1 DUMMY]
+  sqlite3_bind_blob $STMT 1 "\x12\x34\x56" 3
+  sqlite3_step $STMT
+} {SQLITE_DONE}
+do_test blob-3.1 {
+  sqlite3_finalize $STMT
+  db2 close
+} {}
+do_test blob-3.2 {
+  set blobs [execsql {SELECT * FROM t1}]
+  set blobs2 [list]
+  foreach b $blobs {lappend blobs2 [bin_to_hex $b]}
+  set blobs2
+} {CDEF12 345678}
+
+finish_test
diff --git a/test/bloom1.test b/test/bloom1.test
new file mode 100644
index 0000000000000000000000000000000000000000..151f364ae0a66343199e3567124232bd67bfe915
--- /dev/null
+++ b/test/bloom1.test
@@ -0,0 +1,188 @@
+# 2022 October 06
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests for queries that use bloom filters
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+source $testdir/malloc_common.tcl
+
+set testprefix bloom1
+
+# Tests 1.*  verify that the bloom filter code correctly handles the
+# case where the RHS of an (<ipk-column> = ?) expression must be coerced
+# to an integer before the comparison made.
+#
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b);
+  CREATE TABLE t2(c INTEGER PRIMARY KEY, d);
+}
+
+do_execsql_test 1.1 {
+  INSERT INTO t1 VALUES('hello', 'world');
+  INSERT INTO t2 VALUES(14, 'fourteen');
+}
+
+do_execsql_test 1.2 {
+  ANALYZE sqlite_schema;
+  INSERT INTO sqlite_stat1 VALUES('t2','idx1','6 6');
+  ANALYZE sqlite_schema;
+}
+
+do_execsql_test 1.3 {
+  SELECT 'affinity!' FROM t1 CROSS JOIN t2 WHERE t2.c = '14';
+} {affinity!}
+
+
+reset_db
+do_execsql_test 1.4 {
+  CREATE TABLE t1(a, b TEXT);
+  CREATE TABLE t2(c INTEGER PRIMARY KEY, d);
+  CREATE TABLE t3(e INTEGER PRIMARY KEY, f);
+
+  ANALYZE sqlite_schema;
+  INSERT INTO sqlite_stat1 VALUES('t1','idx1','600 6');
+  INSERT INTO sqlite_stat1 VALUES('t2','idx1','6 6');
+  INSERT INTO sqlite_stat1 VALUES('t3','idx2','6 6');
+  ANALYZE sqlite_schema;
+
+  INSERT INTO t1 VALUES(1, '123');
+  INSERT INTO t2 VALUES(123, 'one');
+  INSERT INTO t3 VALUES(123, 'two');
+}
+
+do_execsql_test 1.5 {
+  SELECT 'result' FROM t1, t2, t3 
+  WHERE t2.c=t1.b AND t2.d!='silly'
+    AND t3.e=t1.b AND t3.f!='silly'
+} {result}
+
+# 2023-02-05
+# https://sqlite.org/forum/forumpost/56de336385
+#
+# Do not employ a Bloom filter if the table being filtered or any table
+# wo the left of the table being filtered lacks STAT1 data, since we
+# cannot make a good Bloom filter usefulness determination without STAT1
+# data.
+#
+reset_db
+do_execsql_test 2.0 {
+  CREATE TABLE objs(c INTEGER, s INTEGER, p INTEGER, o INTEGER);
+  CREATE UNIQUE INDEX objs_cspo ON objs(o,p,c,s);
+  ANALYZE;
+  DELETE FROM sqlite_stat1;
+  INSERT INTO sqlite_stat1 VALUES('objs','objs_cspo','520138 21 20 19 1');
+  ANALYZE sqlite_schema;
+}
+do_eqp_test 2.1 {
+  WITH RECURSIVE transit(x) AS (
+     SELECT s FROM objs WHERE p=9 AND o=32805
+     UNION
+     SELECT objs.s FROM objs, transit WHERE objs.p=9 AND objs.o=transit.x
+  )
+  SELECT x FROM transit;
+} {
+  QUERY PLAN
+  |--CO-ROUTINE transit
+  |  |--SETUP
+  |  |  `--SEARCH objs USING COVERING INDEX objs_cspo (o=? AND p=?)
+  |  `--RECURSIVE STEP
+  |     |--SCAN transit
+  |     `--SEARCH objs USING COVERING INDEX objs_cspo (o=? AND p=?)
+  `--SCAN transit
+}
+
+# 2023-02-28
+# https://sqlite.org/forum/forumpost/0846211821
+#
+# Bloom filter gives an incorrect result if the collating sequence is
+# anything other than binary.
+#
+reset_db
+do_execsql_test 3.1 {
+  CREATE TABLE t0(x TEXT COLLATE rtrim);
+  INSERT INTO t0(x) VALUES ('a'), ('b'), ('c');
+  CREATE VIEW v0(y) AS SELECT DISTINCT x FROM t0;
+  SELECT count(*) FROM t0, v0 WHERE x='b ';
+} 3
+do_eqp_test 3.2 {
+  SELECT count(*) FROM t0, v0 WHERE x='b ';
+} {
+  QUERY PLAN
+  |--CO-ROUTINE v0
+  |  |--SCAN t0
+  |  `--USE TEMP B-TREE FOR DISTINCT
+  |--SCAN v0
+  `--SEARCH t0 USING AUTOMATIC PARTIAL COVERING INDEX (x=?)
+}
+# ^^^^^--- The key feature in the previous result is that no Bloom filter
+# is used.  In the following, a Bloom filter is used because the data type
+# is INT instead of TEXT.
+do_execsql_test 3.3 {
+  CREATE TABLE t1(x INT COLLATE rtrim);
+  INSERT INTO t1(x) VALUES ('a'), ('b'), ('c');
+  CREATE VIEW v1(y) AS SELECT DISTINCT x FROM t1;
+  SELECT count(*) FROM t1, v1 WHERE x='b ';
+} 3
+do_eqp_test 3.4 {
+  SELECT count(*) FROM t1, v1 WHERE x='b ';
+} {
+  QUERY PLAN
+  |--CO-ROUTINE v1
+  |  |--SCAN t1
+  |  `--USE TEMP B-TREE FOR DISTINCT
+  |--SCAN v1
+  |--BLOOM FILTER ON t1 (x=?)
+  `--SEARCH t1 USING AUTOMATIC PARTIAL COVERING INDEX (x=?)
+}
+
+# 2023-03-14 
+# https://sqlite.org/forum/forumpost/d47a0e8e3a
+# https://sqlite.org/forum/forumpost/2e427099d5
+#
+# Both reports are for the same problem - using a Bloom filter on an
+# expression index can cause issues.
+#
+reset_db
+do_execsql_test 4.1 {
+  CREATE TABLE t1(x TEXT, y INT, z TEXT);
+  INSERT INTO t1(rowid,x,y,z) VALUES(12,'aa','bb','aa');
+  CREATE INDEX i1x ON t1(1 IS true,z);
+  CREATE TABLE t0(x TEXT);
+  INSERT INTO t0(rowid,x) VALUES(4,'aa');
+  ANALYZE sqlite_schema;
+  INSERT INTO sqlite_stat1 VALUES('t0',NULL,'20');
+  INSERT INTO sqlite_stat1 VALUES('t1','i1x','18 18 2');
+  ANALYZE sqlite_schema;
+}
+do_execsql_test 4.2 {
+  SELECT * FROM t0 NATURAL JOIN t1 WHERE z=t1.x;
+} {aa bb aa}
+do_execsql_test 4.3 {
+  DROP TABLE t0;
+  CREATE TABLE t0(a TEXT);
+  INSERT INTO t0 VALUES ('xyz');
+  CREATE INDEX t0x ON t0(a IS FALSE) WHERE false;
+  DROP TABLE t1;
+  CREATE TABLE t1(b INT);
+  INSERT INTO t1 VALUES('aaa'),('bbb'),('ccc'),('ddd'),(NULL);
+  CREATE TABLE t2(c REAL);
+  INSERT INTO t2 VALUES(7);
+  ANALYZE;
+  CREATE INDEX t2x ON t2(true IN ());
+}
+do_execsql_test 4.4 {
+  SELECT * FROM t0 LEFT JOIN t1 LEFT JOIN t2 ON (b NOTNULL)==(c IN ()) WHERE c;
+} {xyz {} 7.0}
+ 
+
+finish_test
diff --git a/test/boundary1.tcl b/test/boundary1.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..3896b50463844ecf2bdb2110990e40fe0aa60e14
--- /dev/null
+++ b/test/boundary1.tcl
@@ -0,0 +1,289 @@
+puts {# 2008 December 11
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file is automatically generated from a separate TCL script.
+# This file seeks to exercise integer boundary values.
+#
+# $Id: boundary1.tcl,v 1.3 2009/01/02 15:45:48 shane Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Many of the boundary tests depend on a working 64-bit implementation.
+if {![working_64bit_int]} { finish_test; return }
+}
+
+expr srand(0)
+
+# Generate interesting boundary numbers
+#
+foreach x {
+  0
+  1
+  0x7f
+  0x7fff
+  0x7fffff
+  0x7fffffff
+  0x7fffffffff
+  0x7fffffffffff
+  0x7fffffffffffff
+  0x7fffffffffffffff
+} {
+  set x [expr {wide($x)}]
+  set boundarynum($x) 1
+  set boundarynum([expr {$x+1}]) 1
+  set boundarynum([expr {-($x+1)}]) 1
+  set boundarynum([expr {-($x+2)}]) 1
+  set boundarynum([expr {$x+$x+1}]) 1
+  set boundarynum([expr {$x+$x+2}]) 1
+}
+set x [expr {wide(127)}]
+for {set i 1} {$i<=9} {incr i} {
+  set boundarynum($x) 1
+  set boundarynum([expr {$x+1}]) 1
+  set x [expr {wide($x*128 + 127)}]
+}
+
+# Scramble the $inlist into a random order.
+#
+proc scramble {inlist} {
+  set y {}
+  foreach x $inlist {
+    lappend y [list [expr {rand()}] $x]
+  }
+  set y [lsort $y]
+  set outlist {}
+  foreach x $y {
+    lappend outlist [lindex $x 1]
+  }
+  return $outlist
+}
+
+# A simple selection sort.  Not trying to be efficient.
+#
+proc sort {inlist} {
+  set outlist {}
+  set mn [lindex $inlist 0]
+  foreach x $inlist {
+    if {$x<$mn} {set mn $x}
+  }
+  set outlist $mn
+  set mx $mn
+  while {1} {
+    set valid 0
+    foreach x $inlist {
+      if {$x>$mx && (!$valid || $mn>$x)} {
+        set mn $x
+        set valid 1
+      }
+    }
+    if {!$valid} break
+    lappend outlist $mn
+    set mx $mn
+  }
+  return $outlist
+}
+
+# Reverse the order of a list
+#
+proc reverse {inlist} {
+  set i [llength $inlist]
+  set outlist {}
+  for {incr i -1} {$i>=0} {incr i -1} {
+    lappend outlist [lindex $inlist $i]
+  }
+  return $outlist
+}
+
+set nums1 [scramble [array names boundarynum]]
+set nums2 [scramble [array names boundarynum]]
+
+set tname boundary1
+puts "do_test $tname-1.1 \173"
+puts "  db eval \173"
+puts "    CREATE TABLE t1(a,x);"
+set a 0
+foreach r $nums1 {
+  incr a
+  set t1ra($r) $a
+  set t1ar($a) $r
+  set x [format %08x%08x [expr {wide($r)>>32}] $r]
+  set t1rx($r) $x
+  set t1xr($x) $r
+  puts "    INSERT INTO t1(oid,a,x) VALUES($r,$a,'$x');"
+}
+puts "    CREATE INDEX t1i1 ON t1(a);"
+puts "    CREATE INDEX t1i2 ON t1(x);"
+puts "  \175"
+puts "\175 {}"
+
+puts "do_test $tname-1.2 \173"
+puts "  db eval \173"
+puts "    SELECT count(*) FROM t1"
+puts "  \175"
+puts "\175 {64}"
+
+set nums3 $nums2
+lappend nums3 9.22337303685477580800e+18
+lappend nums3 -9.22337303685477580800e+18
+
+set i 0
+foreach r $nums3 {
+  incr i
+
+  if {abs($r)<9.22337203685477580800e+18} {
+    set x $t1rx($r)
+    set a $t1ra($r)
+    set r5 $r.5
+    set r0 $r.0
+    puts "do_test $tname-2.$i.1 \173"
+    puts "  db eval \173"
+    puts "    SELECT * FROM t1 WHERE rowid=$r"
+    puts "  \175"
+    puts "\175 {$a $x}"
+    puts "do_test $tname-2.$i.2 \173"
+    puts "  db eval \173"
+    puts "    SELECT rowid, a FROM t1 WHERE x='$x'"
+    puts "  \175"
+    puts "\175 {$r $a}"
+    puts "do_test $tname-2.$i.3 \173"
+    puts "  db eval \173"
+    puts "    SELECT rowid, x FROM t1 WHERE a=$a"
+    puts "  \175"
+    puts "\175 {$r $x}"
+  }
+
+  foreach op {> >= < <=} subno {gt ge lt le} {
+
+    ################################################################ 2.x.y.1
+    set rset {}
+    set aset {}
+    foreach rx $nums2 {
+      if "\$rx $op \$r" {
+        lappend rset $rx
+        lappend aset $t1ra($rx)
+      }
+    }
+    puts "do_test $tname-2.$i.$subno.1 \173"
+    puts "  db eval \173"
+    puts "    SELECT a FROM t1 WHERE rowid $op $r ORDER BY a"
+    puts "  \175"
+    puts "\175 {[sort $aset]}"
+  
+    ################################################################ 2.x.y.2
+    puts "do_test $tname-2.$i.$subno.2 \173"
+    puts "  db eval \173"
+    puts "    SELECT a FROM t1 WHERE rowid $op $r ORDER BY a DESC"
+    puts "  \175"
+    puts "\175 {[reverse [sort $aset]]}"
+  
+    ################################################################ 2.x.y.3
+    set aset {}
+    foreach rx [sort $rset] {
+      lappend aset $t1ra($rx)
+    }
+    puts "do_test $tname-2.$i.$subno.3 \173"
+    puts "  db eval \173"
+    puts "    SELECT a FROM t1 WHERE rowid $op $r ORDER BY rowid"
+    puts "  \175"
+    puts "\175 {$aset}"
+  
+    ################################################################ 2.x.y.4
+    set aset {}
+    foreach rx [reverse [sort $rset]] {
+      lappend aset $t1ra($rx)
+    }
+    puts "do_test $tname-2.$i.$subno.4 \173"
+    puts "  db eval \173"
+    puts "    SELECT a FROM t1 WHERE rowid $op $r ORDER BY rowid DESC"
+    puts "  \175"
+    puts "\175 {$aset}"
+  
+    ################################################################ 2.x.y.5
+    set aset {}
+    set xset {}
+    foreach rx $rset {
+      lappend xset $t1rx($rx)
+    }
+    foreach x [sort $xset] {
+      set rx $t1xr($x)
+      lappend aset $t1ra($rx)
+    }
+    puts "do_test $tname-2.$i.$subno.5 \173"
+    puts "  db eval \173"
+    puts "    SELECT a FROM t1 WHERE rowid $op $r ORDER BY x"
+    puts "  \175"
+    puts "\175 {$aset}"
+  
+    ################################################################ 2.x.y.10
+    if {abs($r)>9223372036854775808 || [string length $r5]>15} continue
+    set rset {}
+    set aset {}
+    foreach rx $nums2 {
+      if "\$rx $op \$r0" {
+        lappend rset $rx
+      }
+    }
+    foreach rx [sort $rset] {
+      lappend aset $t1ra($rx)
+    }
+    puts "do_test $tname-2.$i.$subno.10 \173"
+    puts "  db eval \173"
+    puts "    SELECT a FROM t1 WHERE rowid $op $r0 ORDER BY rowid"
+    puts "  \175"
+    puts "\175 {$aset}"
+  
+    ################################################################ 2.x.y.11
+    set aset {}
+    foreach rx [reverse [sort $rset]] {
+      lappend aset $t1ra($rx)
+    }
+    puts "do_test $tname-2.$i.$subno.11 \173"
+    puts "  db eval \173"
+    puts "    SELECT a FROM t1 WHERE rowid $op $r0 ORDER BY rowid DESC"
+    puts "  \175"
+    puts "\175 {$aset}"
+
+
+    ################################################################ 2.x.y.12
+    set rset {}
+    set aset {}
+    foreach rx $nums2 {
+      if "\$rx $op \$r5" {
+        lappend rset $rx
+      }
+    }
+    foreach rx [sort $rset] {
+      lappend aset $t1ra($rx)
+    }
+    puts "do_test $tname-2.$i.$subno.12 \173"
+    puts "  db eval \173"
+    puts "    SELECT a FROM t1 WHERE rowid $op $r5 ORDER BY rowid"
+    puts "  \175"
+    puts "\175 {$aset}"
+  
+    ################################################################ 2.x.y.13
+    set aset {}
+    foreach rx [reverse [sort $rset]] {
+      lappend aset $t1ra($rx)
+    }
+    puts "do_test $tname-2.$i.$subno.13 \173"
+    puts "  db eval \173"
+    puts "    SELECT a FROM t1 WHERE rowid $op $r5 ORDER BY rowid DESC"
+    puts "  \175"
+    puts "\175 {$aset}"
+  }
+  
+}
+
+
+puts {finish_test}
diff --git a/test/boundary1.test b/test/boundary1.test
new file mode 100644
index 0000000000000000000000000000000000000000..0e2458c15e31c440d0f22e7d3e99497db81e6e59
--- /dev/null
+++ b/test/boundary1.test
@@ -0,0 +1,7645 @@
+# 2008 December 11
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file is automatically generated from a separate TCL script.
+# This file seeks to exercise integer boundary values.
+#
+# $Id: boundary1.test,v 1.2 2009/01/02 15:45:48 shane Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Many of the boundary tests depend on a working 64-bit implementation.
+if {![working_64bit_int]} { finish_test; return }
+
+do_test boundary1-1.1 {
+  db eval {
+    CREATE TABLE t1(a,x);
+    INSERT INTO t1(oid,a,x) VALUES(-8388609,1,'ffffffffff7fffff');
+    INSERT INTO t1(oid,a,x) VALUES(-36028797018963969,2,'ff7fffffffffffff');
+    INSERT INTO t1(oid,a,x) VALUES(9223372036854775807,3,'7fffffffffffffff');
+    INSERT INTO t1(oid,a,x) VALUES(127,4,'000000000000007f');
+    INSERT INTO t1(oid,a,x) VALUES(3,5,'0000000000000003');
+    INSERT INTO t1(oid,a,x) VALUES(16777216,6,'0000000001000000');
+    INSERT INTO t1(oid,a,x) VALUES(4398046511103,7,'000003ffffffffff');
+    INSERT INTO t1(oid,a,x) VALUES(16383,8,'0000000000003fff');
+    INSERT INTO t1(oid,a,x) VALUES(16777215,9,'0000000000ffffff');
+    INSERT INTO t1(oid,a,x) VALUES(281474976710655,10,'0000ffffffffffff');
+    INSERT INTO t1(oid,a,x) VALUES(-2147483648,11,'ffffffff80000000');
+    INSERT INTO t1(oid,a,x) VALUES(268435455,12,'000000000fffffff');
+    INSERT INTO t1(oid,a,x) VALUES(562949953421311,13,'0001ffffffffffff');
+    INSERT INTO t1(oid,a,x) VALUES(4294967295,14,'00000000ffffffff');
+    INSERT INTO t1(oid,a,x) VALUES(2097151,15,'00000000001fffff');
+    INSERT INTO t1(oid,a,x) VALUES(16384,16,'0000000000004000');
+    INSERT INTO t1(oid,a,x) VALUES(72057594037927935,17,'00ffffffffffffff');
+    INSERT INTO t1(oid,a,x) VALUES(8388607,18,'00000000007fffff');
+    INSERT INTO t1(oid,a,x) VALUES(1099511627776,19,'0000010000000000');
+    INSERT INTO t1(oid,a,x) VALUES(2147483647,20,'000000007fffffff');
+    INSERT INTO t1(oid,a,x) VALUES(-140737488355329,21,'ffff7fffffffffff');
+    INSERT INTO t1(oid,a,x) VALUES(34359738368,22,'0000000800000000');
+    INSERT INTO t1(oid,a,x) VALUES(32767,23,'0000000000007fff');
+    INSERT INTO t1(oid,a,x) VALUES(8388608,24,'0000000000800000');
+    INSERT INTO t1(oid,a,x) VALUES(140737488355327,25,'00007fffffffffff');
+    INSERT INTO t1(oid,a,x) VALUES(281474976710656,26,'0001000000000000');
+    INSERT INTO t1(oid,a,x) VALUES(36028797018963967,27,'007fffffffffffff');
+    INSERT INTO t1(oid,a,x) VALUES(72057594037927936,28,'0100000000000000');
+    INSERT INTO t1(oid,a,x) VALUES(-32769,29,'ffffffffffff7fff');
+    INSERT INTO t1(oid,a,x) VALUES(255,30,'00000000000000ff');
+    INSERT INTO t1(oid,a,x) VALUES(4,31,'0000000000000004');
+    INSERT INTO t1(oid,a,x) VALUES(-32768,32,'ffffffffffff8000');
+    INSERT INTO t1(oid,a,x) VALUES(-2,33,'fffffffffffffffe');
+    INSERT INTO t1(oid,a,x) VALUES(140737488355328,34,'0000800000000000');
+    INSERT INTO t1(oid,a,x) VALUES(549755813888,35,'0000008000000000');
+    INSERT INTO t1(oid,a,x) VALUES(4294967296,36,'0000000100000000');
+    INSERT INTO t1(oid,a,x) VALUES(-8388608,37,'ffffffffff800000');
+    INSERT INTO t1(oid,a,x) VALUES(-1,38,'ffffffffffffffff');
+    INSERT INTO t1(oid,a,x) VALUES(34359738367,39,'00000007ffffffff');
+    INSERT INTO t1(oid,a,x) VALUES(268435456,40,'0000000010000000');
+    INSERT INTO t1(oid,a,x) VALUES(2,41,'0000000000000002');
+    INSERT INTO t1(oid,a,x) VALUES(2097152,42,'0000000000200000');
+    INSERT INTO t1(oid,a,x) VALUES(562949953421312,43,'0002000000000000');
+    INSERT INTO t1(oid,a,x) VALUES(-140737488355328,44,'ffff800000000000');
+    INSERT INTO t1(oid,a,x) VALUES(36028797018963968,45,'0080000000000000');
+    INSERT INTO t1(oid,a,x) VALUES(549755813887,46,'0000007fffffffff');
+    INSERT INTO t1(oid,a,x) VALUES(-2147483649,47,'ffffffff7fffffff');
+    INSERT INTO t1(oid,a,x) VALUES(65535,48,'000000000000ffff');
+    INSERT INTO t1(oid,a,x) VALUES(128,49,'0000000000000080');
+    INSERT INTO t1(oid,a,x) VALUES(32768,50,'0000000000008000');
+    INSERT INTO t1(oid,a,x) VALUES(2147483648,51,'0000000080000000');
+    INSERT INTO t1(oid,a,x) VALUES(-3,52,'fffffffffffffffd');
+    INSERT INTO t1(oid,a,x) VALUES(-128,53,'ffffffffffffff80');
+    INSERT INTO t1(oid,a,x) VALUES(-129,54,'ffffffffffffff7f');
+    INSERT INTO t1(oid,a,x) VALUES(-9223372036854775808,55,'8000000000000000');
+    INSERT INTO t1(oid,a,x) VALUES(4398046511104,56,'0000040000000000');
+    INSERT INTO t1(oid,a,x) VALUES(1099511627775,57,'000000ffffffffff');
+    INSERT INTO t1(oid,a,x) VALUES(-549755813889,58,'ffffff7fffffffff');
+    INSERT INTO t1(oid,a,x) VALUES(0,59,'0000000000000000');
+    INSERT INTO t1(oid,a,x) VALUES(1,60,'0000000000000001');
+    INSERT INTO t1(oid,a,x) VALUES(256,61,'0000000000000100');
+    INSERT INTO t1(oid,a,x) VALUES(65536,62,'0000000000010000');
+    INSERT INTO t1(oid,a,x) VALUES(-549755813888,63,'ffffff8000000000');
+    INSERT INTO t1(oid,a,x) VALUES(-36028797018963968,64,'ff80000000000000');
+    CREATE INDEX t1i1 ON t1(a);
+    CREATE INDEX t1i2 ON t1(x);
+  }
+} {}
+do_test boundary1-1.2 {
+  db eval {
+    SELECT count(*) FROM t1
+  }
+} {64}
+do_test boundary1-2.1.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=72057594037927935
+  }
+} {17 00ffffffffffffff}
+do_test boundary1-2.1.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='00ffffffffffffff'
+  }
+} {72057594037927935 17}
+do_test boundary1-2.1.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=17
+  }
+} {72057594037927935 00ffffffffffffff}
+do_test boundary1-2.1.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 72057594037927935 ORDER BY a
+  }
+} {3 28}
+do_test boundary1-2.1.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 72057594037927935 ORDER BY a DESC
+  }
+} {28 3}
+do_test boundary1-2.1.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 72057594037927935 ORDER BY rowid
+  }
+} {28 3}
+do_test boundary1-2.1.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 72057594037927935 ORDER BY rowid DESC
+  }
+} {3 28}
+do_test boundary1-2.1.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 72057594037927935 ORDER BY x
+  }
+} {28 3}
+do_test boundary1-2.1.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 72057594037927935 ORDER BY a
+  }
+} {3 17 28}
+do_test boundary1-2.1.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 72057594037927935 ORDER BY a DESC
+  }
+} {28 17 3}
+do_test boundary1-2.1.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 72057594037927935 ORDER BY rowid
+  }
+} {17 28 3}
+do_test boundary1-2.1.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 72057594037927935 ORDER BY rowid DESC
+  }
+} {3 28 17}
+do_test boundary1-2.1.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 72057594037927935 ORDER BY x
+  }
+} {17 28 3}
+do_test boundary1-2.1.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 72057594037927935 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 18 19 20 21 22 23 24 25 26 27 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary1-2.1.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 72057594037927935 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 27 26 25 24 23 22 21 20 19 18 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary1-2.1.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 72057594037927935 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45}
+do_test boundary1-2.1.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 72057594037927935 ORDER BY rowid DESC
+  }
+} {45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.1.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 72057594037927935 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.1.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 72057594037927935 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary1-2.1.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 72057594037927935 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary1-2.1.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 72057594037927935 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17}
+do_test boundary1-2.1.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 72057594037927935 ORDER BY rowid DESC
+  }
+} {17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.1.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 72057594037927935 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.2.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=16384
+  }
+} {16 0000000000004000}
+do_test boundary1-2.2.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='0000000000004000'
+  }
+} {16384 16}
+do_test boundary1-2.2.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=16
+  }
+} {16384 0000000000004000}
+do_test boundary1-2.2.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 16384 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 15 17 18 19 20 22 23 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 50 51 56 57 62}
+do_test boundary1-2.2.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 16384 ORDER BY a DESC
+  }
+} {62 57 56 51 50 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 23 22 20 19 18 17 15 14 13 12 10 9 7 6 3}
+do_test boundary1-2.2.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 16384 ORDER BY rowid
+  }
+} {23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.2.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 16384 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23}
+do_test boundary1-2.2.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 16384 ORDER BY x
+  }
+} {23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.2.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 16384 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 50 51 56 57 62}
+do_test boundary1-2.2.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 16384 ORDER BY a DESC
+  }
+} {62 57 56 51 50 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 7 6 3}
+do_test boundary1-2.2.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 16384 ORDER BY rowid
+  }
+} {16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.2.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 16384 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16}
+do_test boundary1-2.2.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 16384 ORDER BY x
+  }
+} {16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.2.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 16384 ORDER BY a
+  }
+} {1 2 4 5 8 11 21 29 30 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 61 63 64}
+do_test boundary1-2.2.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 16384 ORDER BY a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 30 29 21 11 8 5 4 2 1}
+do_test boundary1-2.2.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 16384 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8}
+do_test boundary1-2.2.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 16384 ORDER BY rowid DESC
+  }
+} {8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.2.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 16384 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.2.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 16384 ORDER BY a
+  }
+} {1 2 4 5 8 11 16 21 29 30 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 61 63 64}
+do_test boundary1-2.2.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 16384 ORDER BY a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 30 29 21 16 11 8 5 4 2 1}
+do_test boundary1-2.2.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 16384 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16}
+do_test boundary1-2.2.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 16384 ORDER BY rowid DESC
+  }
+} {16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.2.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 16384 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.3.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=4294967296
+  }
+} {36 0000000100000000}
+do_test boundary1-2.3.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='0000000100000000'
+  }
+} {4294967296 36}
+do_test boundary1-2.3.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=36
+  }
+} {4294967296 0000000100000000}
+do_test boundary1-2.3.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 4294967296 ORDER BY a
+  }
+} {3 7 10 13 17 19 22 25 26 27 28 34 35 39 43 45 46 56 57}
+do_test boundary1-2.3.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 4294967296 ORDER BY a DESC
+  }
+} {57 56 46 45 43 39 35 34 28 27 26 25 22 19 17 13 10 7 3}
+do_test boundary1-2.3.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 4294967296 ORDER BY rowid
+  }
+} {39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.3.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 4294967296 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39}
+do_test boundary1-2.3.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 4294967296 ORDER BY x
+  }
+} {39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.3.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 4294967296 ORDER BY a
+  }
+} {3 7 10 13 17 19 22 25 26 27 28 34 35 36 39 43 45 46 56 57}
+do_test boundary1-2.3.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 4294967296 ORDER BY a DESC
+  }
+} {57 56 46 45 43 39 36 35 34 28 27 26 25 22 19 17 13 10 7 3}
+do_test boundary1-2.3.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 4294967296 ORDER BY rowid
+  }
+} {36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.3.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 4294967296 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36}
+do_test boundary1-2.3.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 4294967296 ORDER BY x
+  }
+} {36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.3.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 4294967296 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 23 24 29 30 31 32 33 37 38 40 41 42 44 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary1-2.3.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 4294967296 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 44 42 41 40 38 37 33 32 31 30 29 24 23 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary1-2.3.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 4294967296 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14}
+do_test boundary1-2.3.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 4294967296 ORDER BY rowid DESC
+  }
+} {14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.3.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 4294967296 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.3.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 4294967296 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 23 24 29 30 31 32 33 36 37 38 40 41 42 44 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary1-2.3.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 4294967296 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 44 42 41 40 38 37 36 33 32 31 30 29 24 23 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary1-2.3.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 4294967296 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36}
+do_test boundary1-2.3.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 4294967296 ORDER BY rowid DESC
+  }
+} {36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.3.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 4294967296 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.4.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=16777216
+  }
+} {6 0000000001000000}
+do_test boundary1-2.4.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='0000000001000000'
+  }
+} {16777216 6}
+do_test boundary1-2.4.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=6
+  }
+} {16777216 0000000001000000}
+do_test boundary1-2.4.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 16777216 ORDER BY a
+  }
+} {3 7 10 12 13 14 17 19 20 22 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary1-2.4.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 16777216 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 22 20 19 17 14 13 12 10 7 3}
+do_test boundary1-2.4.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 16777216 ORDER BY rowid
+  }
+} {12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.4.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 16777216 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12}
+do_test boundary1-2.4.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 16777216 ORDER BY x
+  }
+} {12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.4.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 16777216 ORDER BY a
+  }
+} {3 6 7 10 12 13 14 17 19 20 22 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary1-2.4.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 16777216 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 22 20 19 17 14 13 12 10 7 6 3}
+do_test boundary1-2.4.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 16777216 ORDER BY rowid
+  }
+} {6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.4.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 16777216 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6}
+do_test boundary1-2.4.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 16777216 ORDER BY x
+  }
+} {6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.4.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 16777216 ORDER BY a
+  }
+} {1 2 4 5 8 9 11 15 16 18 21 23 24 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary1-2.4.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 16777216 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 24 23 21 18 16 15 11 9 8 5 4 2 1}
+do_test boundary1-2.4.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 16777216 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9}
+do_test boundary1-2.4.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 16777216 ORDER BY rowid DESC
+  }
+} {9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.4.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 16777216 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.4.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 16777216 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 15 16 18 21 23 24 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary1-2.4.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 16777216 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 24 23 21 18 16 15 11 9 8 6 5 4 2 1}
+do_test boundary1-2.4.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 16777216 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6}
+do_test boundary1-2.4.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 16777216 ORDER BY rowid DESC
+  }
+} {6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.4.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 16777216 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.5.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=-32769
+  }
+} {29 ffffffffffff7fff}
+do_test boundary1-2.5.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='ffffffffffff7fff'
+  }
+} {-32769 29}
+do_test boundary1-2.5.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=29
+  }
+} {-32769 ffffffffffff7fff}
+do_test boundary1-2.5.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -32769 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 32 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary1-2.5.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -32769 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 32 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary1-2.5.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -32769 ORDER BY rowid
+  }
+} {32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.5.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -32769 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32}
+do_test boundary1-2.5.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -32769 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 32 54 53 52 33 38}
+do_test boundary1-2.5.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -32769 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary1-2.5.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -32769 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary1-2.5.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -32769 ORDER BY rowid
+  }
+} {29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.5.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -32769 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29}
+do_test boundary1-2.5.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -32769 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 29 32 54 53 52 33 38}
+do_test boundary1-2.5.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -32769 ORDER BY a
+  }
+} {1 2 11 21 37 44 47 55 58 63 64}
+do_test boundary1-2.5.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -32769 ORDER BY a DESC
+  }
+} {64 63 58 55 47 44 37 21 11 2 1}
+do_test boundary1-2.5.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -32769 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37}
+do_test boundary1-2.5.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -32769 ORDER BY rowid DESC
+  }
+} {37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.5.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -32769 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37}
+do_test boundary1-2.5.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -32769 ORDER BY a
+  }
+} {1 2 11 21 29 37 44 47 55 58 63 64}
+do_test boundary1-2.5.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -32769 ORDER BY a DESC
+  }
+} {64 63 58 55 47 44 37 29 21 11 2 1}
+do_test boundary1-2.5.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -32769 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29}
+do_test boundary1-2.5.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -32769 ORDER BY rowid DESC
+  }
+} {29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.5.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -32769 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29}
+do_test boundary1-2.6.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=-140737488355329
+  }
+} {21 ffff7fffffffffff}
+do_test boundary1-2.6.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='ffff7fffffffffff'
+  }
+} {-140737488355329 21}
+do_test boundary1-2.6.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=21
+  }
+} {-140737488355329 ffff7fffffffffff}
+do_test boundary1-2.6.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -140737488355329 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 56 57 58 59 60 61 62 63}
+do_test boundary1-2.6.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -140737488355329 ORDER BY a DESC
+  }
+} {63 62 61 60 59 58 57 56 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary1-2.6.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -140737488355329 ORDER BY rowid
+  }
+} {44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.6.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -140737488355329 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44}
+do_test boundary1-2.6.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -140737488355329 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.6.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -140737488355329 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 56 57 58 59 60 61 62 63}
+do_test boundary1-2.6.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -140737488355329 ORDER BY a DESC
+  }
+} {63 62 61 60 59 58 57 56 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary1-2.6.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -140737488355329 ORDER BY rowid
+  }
+} {21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.6.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -140737488355329 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21}
+do_test boundary1-2.6.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -140737488355329 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.6.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -140737488355329 ORDER BY a
+  }
+} {2 55 64}
+do_test boundary1-2.6.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -140737488355329 ORDER BY a DESC
+  }
+} {64 55 2}
+do_test boundary1-2.6.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -140737488355329 ORDER BY rowid
+  }
+} {55 2 64}
+do_test boundary1-2.6.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -140737488355329 ORDER BY rowid DESC
+  }
+} {64 2 55}
+do_test boundary1-2.6.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -140737488355329 ORDER BY x
+  }
+} {55 2 64}
+do_test boundary1-2.6.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -140737488355329 ORDER BY a
+  }
+} {2 21 55 64}
+do_test boundary1-2.6.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -140737488355329 ORDER BY a DESC
+  }
+} {64 55 21 2}
+do_test boundary1-2.6.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -140737488355329 ORDER BY rowid
+  }
+} {55 2 64 21}
+do_test boundary1-2.6.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -140737488355329 ORDER BY rowid DESC
+  }
+} {21 64 2 55}
+do_test boundary1-2.6.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -140737488355329 ORDER BY x
+  }
+} {55 2 64 21}
+do_test boundary1-2.7.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=2
+  }
+} {41 0000000000000002}
+do_test boundary1-2.7.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='0000000000000002'
+  }
+} {2 41}
+do_test boundary1-2.7.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=41
+  }
+} {2 0000000000000002}
+do_test boundary1-2.7.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 2 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 39 40 42 43 45 46 48 49 50 51 56 57 61 62}
+do_test boundary1-2.7.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 2 ORDER BY a DESC
+  }
+} {62 61 57 56 51 50 49 48 46 45 43 42 40 39 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary1-2.7.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 2 ORDER BY rowid
+  }
+} {5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.7.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 2 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5}
+do_test boundary1-2.7.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 2 ORDER BY x
+  }
+} {5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.7.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 2 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 39 40 41 42 43 45 46 48 49 50 51 56 57 61 62}
+do_test boundary1-2.7.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 2 ORDER BY a DESC
+  }
+} {62 61 57 56 51 50 49 48 46 45 43 42 41 40 39 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary1-2.7.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 2 ORDER BY rowid
+  }
+} {41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.7.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 2 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41}
+do_test boundary1-2.7.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 2 ORDER BY x
+  }
+} {41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.7.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 2 ORDER BY a
+  }
+} {1 2 11 21 29 32 33 37 38 44 47 52 53 54 55 58 59 60 63 64}
+do_test boundary1-2.7.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 2 ORDER BY a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 47 44 38 37 33 32 29 21 11 2 1}
+do_test boundary1-2.7.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 2 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60}
+do_test boundary1-2.7.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 2 ORDER BY rowid DESC
+  }
+} {60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.7.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 2 ORDER BY x
+  }
+} {59 60 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.7.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 2 ORDER BY a
+  }
+} {1 2 11 21 29 32 33 37 38 41 44 47 52 53 54 55 58 59 60 63 64}
+do_test boundary1-2.7.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 2 ORDER BY a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 47 44 41 38 37 33 32 29 21 11 2 1}
+do_test boundary1-2.7.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 2 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41}
+do_test boundary1-2.7.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 2 ORDER BY rowid DESC
+  }
+} {41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.7.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 2 ORDER BY x
+  }
+} {59 60 41 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.8.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=4
+  }
+} {31 0000000000000004}
+do_test boundary1-2.8.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='0000000000000004'
+  }
+} {4 31}
+do_test boundary1-2.8.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=31
+  }
+} {4 0000000000000004}
+do_test boundary1-2.8.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 4 ORDER BY a
+  }
+} {3 4 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 34 35 36 39 40 42 43 45 46 48 49 50 51 56 57 61 62}
+do_test boundary1-2.8.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 4 ORDER BY a DESC
+  }
+} {62 61 57 56 51 50 49 48 46 45 43 42 40 39 36 35 34 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 4 3}
+do_test boundary1-2.8.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 4 ORDER BY rowid
+  }
+} {4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.8.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 4 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4}
+do_test boundary1-2.8.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 4 ORDER BY x
+  }
+} {4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.8.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 4 ORDER BY a
+  }
+} {3 4 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 39 40 42 43 45 46 48 49 50 51 56 57 61 62}
+do_test boundary1-2.8.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 4 ORDER BY a DESC
+  }
+} {62 61 57 56 51 50 49 48 46 45 43 42 40 39 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 4 3}
+do_test boundary1-2.8.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 4 ORDER BY rowid
+  }
+} {31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.8.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 4 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31}
+do_test boundary1-2.8.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 4 ORDER BY x
+  }
+} {31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.8.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 4 ORDER BY a
+  }
+} {1 2 5 11 21 29 32 33 37 38 41 44 47 52 53 54 55 58 59 60 63 64}
+do_test boundary1-2.8.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 4 ORDER BY a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 47 44 41 38 37 33 32 29 21 11 5 2 1}
+do_test boundary1-2.8.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 4 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5}
+do_test boundary1-2.8.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 4 ORDER BY rowid DESC
+  }
+} {5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.8.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 4 ORDER BY x
+  }
+} {59 60 41 5 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.8.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 4 ORDER BY a
+  }
+} {1 2 5 11 21 29 31 32 33 37 38 41 44 47 52 53 54 55 58 59 60 63 64}
+do_test boundary1-2.8.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 4 ORDER BY a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 47 44 41 38 37 33 32 31 29 21 11 5 2 1}
+do_test boundary1-2.8.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 4 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31}
+do_test boundary1-2.8.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 4 ORDER BY rowid DESC
+  }
+} {31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.8.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 4 ORDER BY x
+  }
+} {59 60 41 5 31 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.9.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=562949953421311
+  }
+} {13 0001ffffffffffff}
+do_test boundary1-2.9.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='0001ffffffffffff'
+  }
+} {562949953421311 13}
+do_test boundary1-2.9.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=13
+  }
+} {562949953421311 0001ffffffffffff}
+do_test boundary1-2.9.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 562949953421311 ORDER BY a
+  }
+} {3 17 27 28 43 45}
+do_test boundary1-2.9.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 562949953421311 ORDER BY a DESC
+  }
+} {45 43 28 27 17 3}
+do_test boundary1-2.9.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 562949953421311 ORDER BY rowid
+  }
+} {43 27 45 17 28 3}
+do_test boundary1-2.9.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 562949953421311 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43}
+do_test boundary1-2.9.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 562949953421311 ORDER BY x
+  }
+} {43 27 45 17 28 3}
+do_test boundary1-2.9.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 562949953421311 ORDER BY a
+  }
+} {3 13 17 27 28 43 45}
+do_test boundary1-2.9.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 562949953421311 ORDER BY a DESC
+  }
+} {45 43 28 27 17 13 3}
+do_test boundary1-2.9.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 562949953421311 ORDER BY rowid
+  }
+} {13 43 27 45 17 28 3}
+do_test boundary1-2.9.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 562949953421311 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13}
+do_test boundary1-2.9.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 562949953421311 ORDER BY x
+  }
+} {13 43 27 45 17 28 3}
+do_test boundary1-2.9.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 562949953421311 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 14 15 16 18 19 20 21 22 23 24 25 26 29 30 31 32 33 34 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary1-2.9.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 562949953421311 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 34 33 32 31 30 29 26 25 24 23 22 21 20 19 18 16 15 14 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary1-2.9.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 562949953421311 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26}
+do_test boundary1-2.9.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 562949953421311 ORDER BY rowid DESC
+  }
+} {26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.9.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 562949953421311 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.9.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 562949953421311 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 18 19 20 21 22 23 24 25 26 29 30 31 32 33 34 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary1-2.9.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 562949953421311 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 34 33 32 31 30 29 26 25 24 23 22 21 20 19 18 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary1-2.9.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 562949953421311 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13}
+do_test boundary1-2.9.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 562949953421311 ORDER BY rowid DESC
+  }
+} {13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.9.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 562949953421311 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.10.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=256
+  }
+} {61 0000000000000100}
+do_test boundary1-2.10.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='0000000000000100'
+  }
+} {256 61}
+do_test boundary1-2.10.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=61
+  }
+} {256 0000000000000100}
+do_test boundary1-2.10.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 256 ORDER BY a
+  }
+} {3 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 50 51 56 57 62}
+do_test boundary1-2.10.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 256 ORDER BY a DESC
+  }
+} {62 57 56 51 50 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 3}
+do_test boundary1-2.10.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 256 ORDER BY rowid
+  }
+} {8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.10.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 256 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8}
+do_test boundary1-2.10.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 256 ORDER BY x
+  }
+} {8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.10.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 256 ORDER BY a
+  }
+} {3 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 50 51 56 57 61 62}
+do_test boundary1-2.10.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 256 ORDER BY a DESC
+  }
+} {62 61 57 56 51 50 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 3}
+do_test boundary1-2.10.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 256 ORDER BY rowid
+  }
+} {61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.10.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 256 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61}
+do_test boundary1-2.10.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 256 ORDER BY x
+  }
+} {61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.10.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 256 ORDER BY a
+  }
+} {1 2 4 5 11 21 29 30 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 63 64}
+do_test boundary1-2.10.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 256 ORDER BY a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 30 29 21 11 5 4 2 1}
+do_test boundary1-2.10.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 256 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30}
+do_test boundary1-2.10.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 256 ORDER BY rowid DESC
+  }
+} {30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.10.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 256 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.10.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 256 ORDER BY a
+  }
+} {1 2 4 5 11 21 29 30 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 61 63 64}
+do_test boundary1-2.10.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 256 ORDER BY a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 30 29 21 11 5 4 2 1}
+do_test boundary1-2.10.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 256 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61}
+do_test boundary1-2.10.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 256 ORDER BY rowid DESC
+  }
+} {61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.10.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 256 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.11.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=34359738368
+  }
+} {22 0000000800000000}
+do_test boundary1-2.11.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='0000000800000000'
+  }
+} {34359738368 22}
+do_test boundary1-2.11.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=22
+  }
+} {34359738368 0000000800000000}
+do_test boundary1-2.11.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 34359738368 ORDER BY a
+  }
+} {3 7 10 13 17 19 25 26 27 28 34 35 43 45 46 56 57}
+do_test boundary1-2.11.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 34359738368 ORDER BY a DESC
+  }
+} {57 56 46 45 43 35 34 28 27 26 25 19 17 13 10 7 3}
+do_test boundary1-2.11.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 34359738368 ORDER BY rowid
+  }
+} {46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.11.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 34359738368 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46}
+do_test boundary1-2.11.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 34359738368 ORDER BY x
+  }
+} {46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.11.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 34359738368 ORDER BY a
+  }
+} {3 7 10 13 17 19 22 25 26 27 28 34 35 43 45 46 56 57}
+do_test boundary1-2.11.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 34359738368 ORDER BY a DESC
+  }
+} {57 56 46 45 43 35 34 28 27 26 25 22 19 17 13 10 7 3}
+do_test boundary1-2.11.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 34359738368 ORDER BY rowid
+  }
+} {22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.11.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 34359738368 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22}
+do_test boundary1-2.11.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 34359738368 ORDER BY x
+  }
+} {22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.11.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 34359738368 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 23 24 29 30 31 32 33 36 37 38 39 40 41 42 44 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary1-2.11.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 34359738368 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 44 42 41 40 39 38 37 36 33 32 31 30 29 24 23 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary1-2.11.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 34359738368 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39}
+do_test boundary1-2.11.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 34359738368 ORDER BY rowid DESC
+  }
+} {39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.11.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 34359738368 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.11.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 34359738368 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 22 23 24 29 30 31 32 33 36 37 38 39 40 41 42 44 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary1-2.11.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 34359738368 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 44 42 41 40 39 38 37 36 33 32 31 30 29 24 23 22 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary1-2.11.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 34359738368 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22}
+do_test boundary1-2.11.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 34359738368 ORDER BY rowid DESC
+  }
+} {22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.11.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 34359738368 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.12.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=65536
+  }
+} {62 0000000000010000}
+do_test boundary1-2.12.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='0000000000010000'
+  }
+} {65536 62}
+do_test boundary1-2.12.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=62
+  }
+} {65536 0000000000010000}
+do_test boundary1-2.12.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 65536 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 15 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 42 43 45 46 51 56 57}
+do_test boundary1-2.12.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 65536 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 42 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 15 14 13 12 10 9 7 6 3}
+do_test boundary1-2.12.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 65536 ORDER BY rowid
+  }
+} {15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.12.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 65536 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15}
+do_test boundary1-2.12.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 65536 ORDER BY x
+  }
+} {15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.12.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 65536 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 15 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 42 43 45 46 51 56 57 62}
+do_test boundary1-2.12.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 65536 ORDER BY a DESC
+  }
+} {62 57 56 51 46 45 43 42 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 15 14 13 12 10 9 7 6 3}
+do_test boundary1-2.12.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 65536 ORDER BY rowid
+  }
+} {62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.12.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 65536 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62}
+do_test boundary1-2.12.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 65536 ORDER BY x
+  }
+} {62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.12.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 65536 ORDER BY a
+  }
+} {1 2 4 5 8 11 16 21 23 29 30 31 32 33 37 38 41 44 47 48 49 50 52 53 54 55 58 59 60 61 63 64}
+do_test boundary1-2.12.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 65536 ORDER BY a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 50 49 48 47 44 41 38 37 33 32 31 30 29 23 21 16 11 8 5 4 2 1}
+do_test boundary1-2.12.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 65536 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48}
+do_test boundary1-2.12.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 65536 ORDER BY rowid DESC
+  }
+} {48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.12.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 65536 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.12.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 65536 ORDER BY a
+  }
+} {1 2 4 5 8 11 16 21 23 29 30 31 32 33 37 38 41 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary1-2.12.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 65536 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 41 38 37 33 32 31 30 29 23 21 16 11 8 5 4 2 1}
+do_test boundary1-2.12.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 65536 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62}
+do_test boundary1-2.12.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 65536 ORDER BY rowid DESC
+  }
+} {62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.12.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 65536 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.13.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=268435456
+  }
+} {40 0000000010000000}
+do_test boundary1-2.13.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='0000000010000000'
+  }
+} {268435456 40}
+do_test boundary1-2.13.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=40
+  }
+} {268435456 0000000010000000}
+do_test boundary1-2.13.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 268435456 ORDER BY a
+  }
+} {3 7 10 13 14 17 19 20 22 25 26 27 28 34 35 36 39 43 45 46 51 56 57}
+do_test boundary1-2.13.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 268435456 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 39 36 35 34 28 27 26 25 22 20 19 17 14 13 10 7 3}
+do_test boundary1-2.13.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 268435456 ORDER BY rowid
+  }
+} {20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.13.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 268435456 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20}
+do_test boundary1-2.13.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 268435456 ORDER BY x
+  }
+} {20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.13.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 268435456 ORDER BY a
+  }
+} {3 7 10 13 14 17 19 20 22 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary1-2.13.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 268435456 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 22 20 19 17 14 13 10 7 3}
+do_test boundary1-2.13.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 268435456 ORDER BY rowid
+  }
+} {40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.13.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 268435456 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40}
+do_test boundary1-2.13.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 268435456 ORDER BY x
+  }
+} {40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.13.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 268435456 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 15 16 18 21 23 24 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary1-2.13.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 268435456 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 24 23 21 18 16 15 12 11 9 8 6 5 4 2 1}
+do_test boundary1-2.13.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 268435456 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12}
+do_test boundary1-2.13.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 268435456 ORDER BY rowid DESC
+  }
+} {12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.13.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 268435456 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.13.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 268435456 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 15 16 18 21 23 24 29 30 31 32 33 37 38 40 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary1-2.13.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 268435456 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 40 38 37 33 32 31 30 29 24 23 21 18 16 15 12 11 9 8 6 5 4 2 1}
+do_test boundary1-2.13.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 268435456 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40}
+do_test boundary1-2.13.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 268435456 ORDER BY rowid DESC
+  }
+} {40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.13.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 268435456 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.14.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=-140737488355328
+  }
+} {44 ffff800000000000}
+do_test boundary1-2.14.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='ffff800000000000'
+  }
+} {-140737488355328 44}
+do_test boundary1-2.14.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=44
+  }
+} {-140737488355328 ffff800000000000}
+do_test boundary1-2.14.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -140737488355328 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 47 48 49 50 51 52 53 54 56 57 58 59 60 61 62 63}
+do_test boundary1-2.14.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -140737488355328 ORDER BY a DESC
+  }
+} {63 62 61 60 59 58 57 56 54 53 52 51 50 49 48 47 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary1-2.14.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -140737488355328 ORDER BY rowid
+  }
+} {58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.14.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -140737488355328 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58}
+do_test boundary1-2.14.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -140737488355328 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.14.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -140737488355328 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 56 57 58 59 60 61 62 63}
+do_test boundary1-2.14.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -140737488355328 ORDER BY a DESC
+  }
+} {63 62 61 60 59 58 57 56 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary1-2.14.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -140737488355328 ORDER BY rowid
+  }
+} {44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.14.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -140737488355328 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44}
+do_test boundary1-2.14.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -140737488355328 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.14.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -140737488355328 ORDER BY a
+  }
+} {2 21 55 64}
+do_test boundary1-2.14.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -140737488355328 ORDER BY a DESC
+  }
+} {64 55 21 2}
+do_test boundary1-2.14.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -140737488355328 ORDER BY rowid
+  }
+} {55 2 64 21}
+do_test boundary1-2.14.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -140737488355328 ORDER BY rowid DESC
+  }
+} {21 64 2 55}
+do_test boundary1-2.14.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -140737488355328 ORDER BY x
+  }
+} {55 2 64 21}
+do_test boundary1-2.14.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -140737488355328 ORDER BY a
+  }
+} {2 21 44 55 64}
+do_test boundary1-2.14.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -140737488355328 ORDER BY a DESC
+  }
+} {64 55 44 21 2}
+do_test boundary1-2.14.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -140737488355328 ORDER BY rowid
+  }
+} {55 2 64 21 44}
+do_test boundary1-2.14.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -140737488355328 ORDER BY rowid DESC
+  }
+} {44 21 64 2 55}
+do_test boundary1-2.14.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -140737488355328 ORDER BY x
+  }
+} {55 2 64 21 44}
+do_test boundary1-2.15.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=1099511627776
+  }
+} {19 0000010000000000}
+do_test boundary1-2.15.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='0000010000000000'
+  }
+} {1099511627776 19}
+do_test boundary1-2.15.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=19
+  }
+} {1099511627776 0000010000000000}
+do_test boundary1-2.15.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 1099511627776 ORDER BY a
+  }
+} {3 7 10 13 17 25 26 27 28 34 43 45 56}
+do_test boundary1-2.15.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 1099511627776 ORDER BY a DESC
+  }
+} {56 45 43 34 28 27 26 25 17 13 10 7 3}
+do_test boundary1-2.15.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 1099511627776 ORDER BY rowid
+  }
+} {7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.15.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 1099511627776 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7}
+do_test boundary1-2.15.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 1099511627776 ORDER BY x
+  }
+} {7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.15.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 1099511627776 ORDER BY a
+  }
+} {3 7 10 13 17 19 25 26 27 28 34 43 45 56}
+do_test boundary1-2.15.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 1099511627776 ORDER BY a DESC
+  }
+} {56 45 43 34 28 27 26 25 19 17 13 10 7 3}
+do_test boundary1-2.15.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 1099511627776 ORDER BY rowid
+  }
+} {19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.15.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 1099511627776 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19}
+do_test boundary1-2.15.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 1099511627776 ORDER BY x
+  }
+} {19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.15.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 1099511627776 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 22 23 24 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 57 58 59 60 61 62 63 64}
+do_test boundary1-2.15.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 1099511627776 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 24 23 22 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary1-2.15.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 1099511627776 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57}
+do_test boundary1-2.15.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 1099511627776 ORDER BY rowid DESC
+  }
+} {57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.15.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 1099511627776 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.15.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 1099511627776 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 19 20 21 22 23 24 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 57 58 59 60 61 62 63 64}
+do_test boundary1-2.15.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 1099511627776 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 24 23 22 21 20 19 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary1-2.15.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 1099511627776 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19}
+do_test boundary1-2.15.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 1099511627776 ORDER BY rowid DESC
+  }
+} {19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.15.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 1099511627776 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.16.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 9223372036854775807 ORDER BY a
+  }
+} {}
+do_test boundary1-2.16.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 9223372036854775807 ORDER BY a DESC
+  }
+} {}
+do_test boundary1-2.16.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 9223372036854775807 ORDER BY rowid
+  }
+} {}
+do_test boundary1-2.16.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 9223372036854775807 ORDER BY rowid DESC
+  }
+} {}
+do_test boundary1-2.16.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 9223372036854775807 ORDER BY x
+  }
+} {}
+do_test boundary1-2.16.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 9223372036854775807 ORDER BY a
+  }
+} {3}
+do_test boundary1-2.16.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 9223372036854775807 ORDER BY a DESC
+  }
+} {3}
+do_test boundary1-2.16.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 9223372036854775807 ORDER BY rowid
+  }
+} {3}
+do_test boundary1-2.16.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 9223372036854775807 ORDER BY rowid DESC
+  }
+} {3}
+do_test boundary1-2.16.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 9223372036854775807 ORDER BY x
+  }
+} {3}
+do_test boundary1-2.16.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 9223372036854775807 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary1-2.16.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 9223372036854775807 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary1-2.16.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 9223372036854775807 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28}
+do_test boundary1-2.16.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 9223372036854775807 ORDER BY rowid DESC
+  }
+} {28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.16.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 9223372036854775807 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.16.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 9223372036854775807 ORDER BY a
+  }
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary1-2.16.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 9223372036854775807 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1}
+do_test boundary1-2.16.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 9223372036854775807 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.16.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 9223372036854775807 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.16.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 9223372036854775807 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.17.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=32768
+  }
+} {50 0000000000008000}
+do_test boundary1-2.17.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='0000000000008000'
+  }
+} {32768 50}
+do_test boundary1-2.17.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=50
+  }
+} {32768 0000000000008000}
+do_test boundary1-2.17.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 32768 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 15 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 51 56 57 62}
+do_test boundary1-2.17.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 32768 ORDER BY a DESC
+  }
+} {62 57 56 51 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 15 14 13 12 10 9 7 6 3}
+do_test boundary1-2.17.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 32768 ORDER BY rowid
+  }
+} {48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.17.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 32768 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48}
+do_test boundary1-2.17.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 32768 ORDER BY x
+  }
+} {48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.17.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 32768 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 15 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 50 51 56 57 62}
+do_test boundary1-2.17.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 32768 ORDER BY a DESC
+  }
+} {62 57 56 51 50 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 15 14 13 12 10 9 7 6 3}
+do_test boundary1-2.17.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 32768 ORDER BY rowid
+  }
+} {50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.17.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 32768 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50}
+do_test boundary1-2.17.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 32768 ORDER BY x
+  }
+} {50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.17.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 32768 ORDER BY a
+  }
+} {1 2 4 5 8 11 16 21 23 29 30 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 61 63 64}
+do_test boundary1-2.17.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 32768 ORDER BY a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 30 29 23 21 16 11 8 5 4 2 1}
+do_test boundary1-2.17.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 32768 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23}
+do_test boundary1-2.17.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 32768 ORDER BY rowid DESC
+  }
+} {23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.17.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 32768 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.17.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 32768 ORDER BY a
+  }
+} {1 2 4 5 8 11 16 21 23 29 30 31 32 33 37 38 41 44 47 49 50 52 53 54 55 58 59 60 61 63 64}
+do_test boundary1-2.17.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 32768 ORDER BY a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 50 49 47 44 41 38 37 33 32 31 30 29 23 21 16 11 8 5 4 2 1}
+do_test boundary1-2.17.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 32768 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50}
+do_test boundary1-2.17.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 32768 ORDER BY rowid DESC
+  }
+} {50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.17.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 32768 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.18.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=-36028797018963968
+  }
+} {64 ff80000000000000}
+do_test boundary1-2.18.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='ff80000000000000'
+  }
+} {-36028797018963968 64}
+do_test boundary1-2.18.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=64
+  }
+} {-36028797018963968 ff80000000000000}
+do_test boundary1-2.18.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -36028797018963968 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 56 57 58 59 60 61 62 63}
+do_test boundary1-2.18.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -36028797018963968 ORDER BY a DESC
+  }
+} {63 62 61 60 59 58 57 56 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary1-2.18.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -36028797018963968 ORDER BY rowid
+  }
+} {21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.18.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -36028797018963968 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21}
+do_test boundary1-2.18.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -36028797018963968 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.18.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -36028797018963968 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 56 57 58 59 60 61 62 63 64}
+do_test boundary1-2.18.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -36028797018963968 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary1-2.18.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -36028797018963968 ORDER BY rowid
+  }
+} {64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.18.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -36028797018963968 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64}
+do_test boundary1-2.18.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -36028797018963968 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.18.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -36028797018963968 ORDER BY a
+  }
+} {2 55}
+do_test boundary1-2.18.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -36028797018963968 ORDER BY a DESC
+  }
+} {55 2}
+do_test boundary1-2.18.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -36028797018963968 ORDER BY rowid
+  }
+} {55 2}
+do_test boundary1-2.18.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -36028797018963968 ORDER BY rowid DESC
+  }
+} {2 55}
+do_test boundary1-2.18.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -36028797018963968 ORDER BY x
+  }
+} {55 2}
+do_test boundary1-2.18.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -36028797018963968 ORDER BY a
+  }
+} {2 55 64}
+do_test boundary1-2.18.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -36028797018963968 ORDER BY a DESC
+  }
+} {64 55 2}
+do_test boundary1-2.18.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -36028797018963968 ORDER BY rowid
+  }
+} {55 2 64}
+do_test boundary1-2.18.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -36028797018963968 ORDER BY rowid DESC
+  }
+} {64 2 55}
+do_test boundary1-2.18.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -36028797018963968 ORDER BY x
+  }
+} {55 2 64}
+do_test boundary1-2.19.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=65535
+  }
+} {48 000000000000ffff}
+do_test boundary1-2.19.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='000000000000ffff'
+  }
+} {65535 48}
+do_test boundary1-2.19.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=48
+  }
+} {65535 000000000000ffff}
+do_test boundary1-2.19.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 65535 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 15 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 42 43 45 46 51 56 57 62}
+do_test boundary1-2.19.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 65535 ORDER BY a DESC
+  }
+} {62 57 56 51 46 45 43 42 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 15 14 13 12 10 9 7 6 3}
+do_test boundary1-2.19.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 65535 ORDER BY rowid
+  }
+} {62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.19.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 65535 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62}
+do_test boundary1-2.19.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 65535 ORDER BY x
+  }
+} {62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.19.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 65535 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 15 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 51 56 57 62}
+do_test boundary1-2.19.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 65535 ORDER BY a DESC
+  }
+} {62 57 56 51 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 15 14 13 12 10 9 7 6 3}
+do_test boundary1-2.19.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 65535 ORDER BY rowid
+  }
+} {48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.19.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 65535 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48}
+do_test boundary1-2.19.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 65535 ORDER BY x
+  }
+} {48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.19.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 65535 ORDER BY a
+  }
+} {1 2 4 5 8 11 16 21 23 29 30 31 32 33 37 38 41 44 47 49 50 52 53 54 55 58 59 60 61 63 64}
+do_test boundary1-2.19.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 65535 ORDER BY a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 50 49 47 44 41 38 37 33 32 31 30 29 23 21 16 11 8 5 4 2 1}
+do_test boundary1-2.19.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 65535 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50}
+do_test boundary1-2.19.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 65535 ORDER BY rowid DESC
+  }
+} {50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.19.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 65535 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.19.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 65535 ORDER BY a
+  }
+} {1 2 4 5 8 11 16 21 23 29 30 31 32 33 37 38 41 44 47 48 49 50 52 53 54 55 58 59 60 61 63 64}
+do_test boundary1-2.19.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 65535 ORDER BY a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 50 49 48 47 44 41 38 37 33 32 31 30 29 23 21 16 11 8 5 4 2 1}
+do_test boundary1-2.19.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 65535 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48}
+do_test boundary1-2.19.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 65535 ORDER BY rowid DESC
+  }
+} {48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.19.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 65535 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.20.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=4294967295
+  }
+} {14 00000000ffffffff}
+do_test boundary1-2.20.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='00000000ffffffff'
+  }
+} {4294967295 14}
+do_test boundary1-2.20.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=14
+  }
+} {4294967295 00000000ffffffff}
+do_test boundary1-2.20.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 4294967295 ORDER BY a
+  }
+} {3 7 10 13 17 19 22 25 26 27 28 34 35 36 39 43 45 46 56 57}
+do_test boundary1-2.20.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 4294967295 ORDER BY a DESC
+  }
+} {57 56 46 45 43 39 36 35 34 28 27 26 25 22 19 17 13 10 7 3}
+do_test boundary1-2.20.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 4294967295 ORDER BY rowid
+  }
+} {36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.20.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 4294967295 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36}
+do_test boundary1-2.20.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 4294967295 ORDER BY x
+  }
+} {36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.20.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 4294967295 ORDER BY a
+  }
+} {3 7 10 13 14 17 19 22 25 26 27 28 34 35 36 39 43 45 46 56 57}
+do_test boundary1-2.20.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 4294967295 ORDER BY a DESC
+  }
+} {57 56 46 45 43 39 36 35 34 28 27 26 25 22 19 17 14 13 10 7 3}
+do_test boundary1-2.20.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 4294967295 ORDER BY rowid
+  }
+} {14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.20.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 4294967295 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14}
+do_test boundary1-2.20.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 4294967295 ORDER BY x
+  }
+} {14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.20.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 4294967295 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 15 16 18 20 21 23 24 29 30 31 32 33 37 38 40 41 42 44 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary1-2.20.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 4294967295 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 44 42 41 40 38 37 33 32 31 30 29 24 23 21 20 18 16 15 12 11 9 8 6 5 4 2 1}
+do_test boundary1-2.20.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 4294967295 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51}
+do_test boundary1-2.20.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 4294967295 ORDER BY rowid DESC
+  }
+} {51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.20.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 4294967295 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.20.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 4294967295 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 23 24 29 30 31 32 33 37 38 40 41 42 44 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary1-2.20.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 4294967295 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 44 42 41 40 38 37 33 32 31 30 29 24 23 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary1-2.20.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 4294967295 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14}
+do_test boundary1-2.20.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 4294967295 ORDER BY rowid DESC
+  }
+} {14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.20.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 4294967295 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.21.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=1099511627775
+  }
+} {57 000000ffffffffff}
+do_test boundary1-2.21.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='000000ffffffffff'
+  }
+} {1099511627775 57}
+do_test boundary1-2.21.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=57
+  }
+} {1099511627775 000000ffffffffff}
+do_test boundary1-2.21.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 1099511627775 ORDER BY a
+  }
+} {3 7 10 13 17 19 25 26 27 28 34 43 45 56}
+do_test boundary1-2.21.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 1099511627775 ORDER BY a DESC
+  }
+} {56 45 43 34 28 27 26 25 19 17 13 10 7 3}
+do_test boundary1-2.21.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 1099511627775 ORDER BY rowid
+  }
+} {19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.21.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 1099511627775 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19}
+do_test boundary1-2.21.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 1099511627775 ORDER BY x
+  }
+} {19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.21.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 1099511627775 ORDER BY a
+  }
+} {3 7 10 13 17 19 25 26 27 28 34 43 45 56 57}
+do_test boundary1-2.21.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 1099511627775 ORDER BY a DESC
+  }
+} {57 56 45 43 34 28 27 26 25 19 17 13 10 7 3}
+do_test boundary1-2.21.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 1099511627775 ORDER BY rowid
+  }
+} {57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.21.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 1099511627775 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57}
+do_test boundary1-2.21.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 1099511627775 ORDER BY x
+  }
+} {57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.21.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 1099511627775 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 22 23 24 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary1-2.21.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 1099511627775 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 24 23 22 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary1-2.21.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 1099511627775 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35}
+do_test boundary1-2.21.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 1099511627775 ORDER BY rowid DESC
+  }
+} {35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.21.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 1099511627775 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.21.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 1099511627775 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 22 23 24 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 57 58 59 60 61 62 63 64}
+do_test boundary1-2.21.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 1099511627775 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 24 23 22 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary1-2.21.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 1099511627775 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57}
+do_test boundary1-2.21.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 1099511627775 ORDER BY rowid DESC
+  }
+} {57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.21.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 1099511627775 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.22.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=-8388608
+  }
+} {37 ffffffffff800000}
+do_test boundary1-2.22.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='ffffffffff800000'
+  }
+} {-8388608 37}
+do_test boundary1-2.22.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=37
+  }
+} {-8388608 ffffffffff800000}
+do_test boundary1-2.22.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -8388608 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary1-2.22.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -8388608 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary1-2.22.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -8388608 ORDER BY rowid
+  }
+} {29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.22.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -8388608 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29}
+do_test boundary1-2.22.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -8388608 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 29 32 54 53 52 33 38}
+do_test boundary1-2.22.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -8388608 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary1-2.22.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -8388608 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary1-2.22.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -8388608 ORDER BY rowid
+  }
+} {37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.22.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -8388608 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37}
+do_test boundary1-2.22.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -8388608 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 37 29 32 54 53 52 33 38}
+do_test boundary1-2.22.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -8388608 ORDER BY a
+  }
+} {1 2 11 21 44 47 55 58 63 64}
+do_test boundary1-2.22.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -8388608 ORDER BY a DESC
+  }
+} {64 63 58 55 47 44 21 11 2 1}
+do_test boundary1-2.22.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -8388608 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1}
+do_test boundary1-2.22.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -8388608 ORDER BY rowid DESC
+  }
+} {1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.22.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -8388608 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1}
+do_test boundary1-2.22.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -8388608 ORDER BY a
+  }
+} {1 2 11 21 37 44 47 55 58 63 64}
+do_test boundary1-2.22.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -8388608 ORDER BY a DESC
+  }
+} {64 63 58 55 47 44 37 21 11 2 1}
+do_test boundary1-2.22.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -8388608 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37}
+do_test boundary1-2.22.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -8388608 ORDER BY rowid DESC
+  }
+} {37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.22.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -8388608 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37}
+do_test boundary1-2.23.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=549755813888
+  }
+} {35 0000008000000000}
+do_test boundary1-2.23.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='0000008000000000'
+  }
+} {549755813888 35}
+do_test boundary1-2.23.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=35
+  }
+} {549755813888 0000008000000000}
+do_test boundary1-2.23.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 549755813888 ORDER BY a
+  }
+} {3 7 10 13 17 19 25 26 27 28 34 43 45 56 57}
+do_test boundary1-2.23.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 549755813888 ORDER BY a DESC
+  }
+} {57 56 45 43 34 28 27 26 25 19 17 13 10 7 3}
+do_test boundary1-2.23.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 549755813888 ORDER BY rowid
+  }
+} {57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.23.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 549755813888 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57}
+do_test boundary1-2.23.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 549755813888 ORDER BY x
+  }
+} {57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.23.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 549755813888 ORDER BY a
+  }
+} {3 7 10 13 17 19 25 26 27 28 34 35 43 45 56 57}
+do_test boundary1-2.23.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 549755813888 ORDER BY a DESC
+  }
+} {57 56 45 43 35 34 28 27 26 25 19 17 13 10 7 3}
+do_test boundary1-2.23.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 549755813888 ORDER BY rowid
+  }
+} {35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.23.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 549755813888 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35}
+do_test boundary1-2.23.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 549755813888 ORDER BY x
+  }
+} {35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.23.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 549755813888 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 22 23 24 29 30 31 32 33 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary1-2.23.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 549755813888 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 33 32 31 30 29 24 23 22 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary1-2.23.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 549755813888 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46}
+do_test boundary1-2.23.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 549755813888 ORDER BY rowid DESC
+  }
+} {46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.23.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 549755813888 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.23.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 549755813888 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 22 23 24 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary1-2.23.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 549755813888 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 24 23 22 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary1-2.23.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 549755813888 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35}
+do_test boundary1-2.23.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 549755813888 ORDER BY rowid DESC
+  }
+} {35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.23.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 549755813888 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.24.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=8388607
+  }
+} {18 00000000007fffff}
+do_test boundary1-2.24.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='00000000007fffff'
+  }
+} {8388607 18}
+do_test boundary1-2.24.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=18
+  }
+} {8388607 00000000007fffff}
+do_test boundary1-2.24.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 8388607 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 17 19 20 22 24 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary1-2.24.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 8388607 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 24 22 20 19 17 14 13 12 10 9 7 6 3}
+do_test boundary1-2.24.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 8388607 ORDER BY rowid
+  }
+} {24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.24.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 8388607 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24}
+do_test boundary1-2.24.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 8388607 ORDER BY x
+  }
+} {24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.24.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 8388607 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary1-2.24.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 8388607 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 14 13 12 10 9 7 6 3}
+do_test boundary1-2.24.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 8388607 ORDER BY rowid
+  }
+} {18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.24.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 8388607 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18}
+do_test boundary1-2.24.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 8388607 ORDER BY x
+  }
+} {18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.24.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 8388607 ORDER BY a
+  }
+} {1 2 4 5 8 11 15 16 21 23 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary1-2.24.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 8388607 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 23 21 16 15 11 8 5 4 2 1}
+do_test boundary1-2.24.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 8388607 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42}
+do_test boundary1-2.24.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 8388607 ORDER BY rowid DESC
+  }
+} {42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.24.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 8388607 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.24.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 8388607 ORDER BY a
+  }
+} {1 2 4 5 8 11 15 16 18 21 23 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary1-2.24.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 8388607 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 23 21 18 16 15 11 8 5 4 2 1}
+do_test boundary1-2.24.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 8388607 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18}
+do_test boundary1-2.24.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 8388607 ORDER BY rowid DESC
+  }
+} {18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.24.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 8388607 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.25.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=-3
+  }
+} {52 fffffffffffffffd}
+do_test boundary1-2.25.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='fffffffffffffffd'
+  }
+} {-3 52}
+do_test boundary1-2.25.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=52
+  }
+} {-3 fffffffffffffffd}
+do_test boundary1-2.25.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -3 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 56 57 59 60 61 62}
+do_test boundary1-2.25.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -3 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary1-2.25.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -3 ORDER BY rowid
+  }
+} {33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.25.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -3 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33}
+do_test boundary1-2.25.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -3 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 33 38}
+do_test boundary1-2.25.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -3 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 52 56 57 59 60 61 62}
+do_test boundary1-2.25.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -3 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 52 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary1-2.25.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -3 ORDER BY rowid
+  }
+} {52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.25.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -3 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52}
+do_test boundary1-2.25.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -3 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 52 33 38}
+do_test boundary1-2.25.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -3 ORDER BY a
+  }
+} {1 2 11 21 29 32 37 44 47 53 54 55 58 63 64}
+do_test boundary1-2.25.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -3 ORDER BY a DESC
+  }
+} {64 63 58 55 54 53 47 44 37 32 29 21 11 2 1}
+do_test boundary1-2.25.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -3 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53}
+do_test boundary1-2.25.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -3 ORDER BY rowid DESC
+  }
+} {53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.25.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -3 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53}
+do_test boundary1-2.25.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -3 ORDER BY a
+  }
+} {1 2 11 21 29 32 37 44 47 52 53 54 55 58 63 64}
+do_test boundary1-2.25.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -3 ORDER BY a DESC
+  }
+} {64 63 58 55 54 53 52 47 44 37 32 29 21 11 2 1}
+do_test boundary1-2.25.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -3 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52}
+do_test boundary1-2.25.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -3 ORDER BY rowid DESC
+  }
+} {52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.25.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -3 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52}
+do_test boundary1-2.26.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=0
+  }
+} {59 0000000000000000}
+do_test boundary1-2.26.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='0000000000000000'
+  }
+} {0 59}
+do_test boundary1-2.26.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=59
+  }
+} {0 0000000000000000}
+do_test boundary1-2.26.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 0 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 39 40 41 42 43 45 46 48 49 50 51 56 57 60 61 62}
+do_test boundary1-2.26.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 0 ORDER BY a DESC
+  }
+} {62 61 60 57 56 51 50 49 48 46 45 43 42 41 40 39 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary1-2.26.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 0 ORDER BY rowid
+  }
+} {60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.26.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 0 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60}
+do_test boundary1-2.26.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 0 ORDER BY x
+  }
+} {60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.26.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 0 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 39 40 41 42 43 45 46 48 49 50 51 56 57 59 60 61 62}
+do_test boundary1-2.26.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 0 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 51 50 49 48 46 45 43 42 41 40 39 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary1-2.26.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 0 ORDER BY rowid
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.26.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 0 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59}
+do_test boundary1-2.26.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 0 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.26.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 0 ORDER BY a
+  }
+} {1 2 11 21 29 32 33 37 38 44 47 52 53 54 55 58 63 64}
+do_test boundary1-2.26.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 0 ORDER BY a DESC
+  }
+} {64 63 58 55 54 53 52 47 44 38 37 33 32 29 21 11 2 1}
+do_test boundary1-2.26.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 0 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.26.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 0 ORDER BY rowid DESC
+  }
+} {38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.26.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 0 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.26.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 0 ORDER BY a
+  }
+} {1 2 11 21 29 32 33 37 38 44 47 52 53 54 55 58 59 63 64}
+do_test boundary1-2.26.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 0 ORDER BY a DESC
+  }
+} {64 63 59 58 55 54 53 52 47 44 38 37 33 32 29 21 11 2 1}
+do_test boundary1-2.26.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 0 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59}
+do_test boundary1-2.26.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 0 ORDER BY rowid DESC
+  }
+} {59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.26.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 0 ORDER BY x
+  }
+} {59 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.27.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=-1
+  }
+} {38 ffffffffffffffff}
+do_test boundary1-2.27.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='ffffffffffffffff'
+  }
+} {-1 38}
+do_test boundary1-2.27.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=38
+  }
+} {-1 ffffffffffffffff}
+do_test boundary1-2.27.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -1 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 39 40 41 42 43 45 46 48 49 50 51 56 57 59 60 61 62}
+do_test boundary1-2.27.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -1 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 51 50 49 48 46 45 43 42 41 40 39 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary1-2.27.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -1 ORDER BY rowid
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.27.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -1 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59}
+do_test boundary1-2.27.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -1 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.27.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -1 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 56 57 59 60 61 62}
+do_test boundary1-2.27.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -1 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary1-2.27.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -1 ORDER BY rowid
+  }
+} {38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.27.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -1 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38}
+do_test boundary1-2.27.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -1 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 38}
+do_test boundary1-2.27.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -1 ORDER BY a
+  }
+} {1 2 11 21 29 32 33 37 44 47 52 53 54 55 58 63 64}
+do_test boundary1-2.27.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -1 ORDER BY a DESC
+  }
+} {64 63 58 55 54 53 52 47 44 37 33 32 29 21 11 2 1}
+do_test boundary1-2.27.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -1 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33}
+do_test boundary1-2.27.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -1 ORDER BY rowid DESC
+  }
+} {33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.27.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -1 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33}
+do_test boundary1-2.27.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -1 ORDER BY a
+  }
+} {1 2 11 21 29 32 33 37 38 44 47 52 53 54 55 58 63 64}
+do_test boundary1-2.27.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -1 ORDER BY a DESC
+  }
+} {64 63 58 55 54 53 52 47 44 38 37 33 32 29 21 11 2 1}
+do_test boundary1-2.27.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -1 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.27.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -1 ORDER BY rowid DESC
+  }
+} {38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.27.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -1 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.28.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=-2
+  }
+} {33 fffffffffffffffe}
+do_test boundary1-2.28.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='fffffffffffffffe'
+  }
+} {-2 33}
+do_test boundary1-2.28.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=33
+  }
+} {-2 fffffffffffffffe}
+do_test boundary1-2.28.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -2 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 56 57 59 60 61 62}
+do_test boundary1-2.28.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -2 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary1-2.28.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -2 ORDER BY rowid
+  }
+} {38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.28.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -2 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38}
+do_test boundary1-2.28.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -2 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 38}
+do_test boundary1-2.28.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -2 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 56 57 59 60 61 62}
+do_test boundary1-2.28.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -2 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary1-2.28.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -2 ORDER BY rowid
+  }
+} {33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.28.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -2 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33}
+do_test boundary1-2.28.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -2 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 33 38}
+do_test boundary1-2.28.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -2 ORDER BY a
+  }
+} {1 2 11 21 29 32 37 44 47 52 53 54 55 58 63 64}
+do_test boundary1-2.28.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -2 ORDER BY a DESC
+  }
+} {64 63 58 55 54 53 52 47 44 37 32 29 21 11 2 1}
+do_test boundary1-2.28.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -2 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52}
+do_test boundary1-2.28.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -2 ORDER BY rowid DESC
+  }
+} {52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.28.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -2 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52}
+do_test boundary1-2.28.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -2 ORDER BY a
+  }
+} {1 2 11 21 29 32 33 37 44 47 52 53 54 55 58 63 64}
+do_test boundary1-2.28.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -2 ORDER BY a DESC
+  }
+} {64 63 58 55 54 53 52 47 44 37 33 32 29 21 11 2 1}
+do_test boundary1-2.28.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -2 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33}
+do_test boundary1-2.28.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -2 ORDER BY rowid DESC
+  }
+} {33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.28.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -2 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33}
+do_test boundary1-2.29.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=2097152
+  }
+} {42 0000000000200000}
+do_test boundary1-2.29.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='0000000000200000'
+  }
+} {2097152 42}
+do_test boundary1-2.29.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=42
+  }
+} {2097152 0000000000200000}
+do_test boundary1-2.29.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 2097152 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary1-2.29.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 2097152 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 14 13 12 10 9 7 6 3}
+do_test boundary1-2.29.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 2097152 ORDER BY rowid
+  }
+} {18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.29.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 2097152 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18}
+do_test boundary1-2.29.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 2097152 ORDER BY x
+  }
+} {18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.29.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 2097152 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 42 43 45 46 51 56 57}
+do_test boundary1-2.29.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 2097152 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 42 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 14 13 12 10 9 7 6 3}
+do_test boundary1-2.29.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 2097152 ORDER BY rowid
+  }
+} {42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.29.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 2097152 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42}
+do_test boundary1-2.29.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 2097152 ORDER BY x
+  }
+} {42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.29.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 2097152 ORDER BY a
+  }
+} {1 2 4 5 8 11 15 16 21 23 29 30 31 32 33 37 38 41 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary1-2.29.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 2097152 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 41 38 37 33 32 31 30 29 23 21 16 15 11 8 5 4 2 1}
+do_test boundary1-2.29.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 2097152 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15}
+do_test boundary1-2.29.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 2097152 ORDER BY rowid DESC
+  }
+} {15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.29.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 2097152 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.29.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 2097152 ORDER BY a
+  }
+} {1 2 4 5 8 11 15 16 21 23 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary1-2.29.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 2097152 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 23 21 16 15 11 8 5 4 2 1}
+do_test boundary1-2.29.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 2097152 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42}
+do_test boundary1-2.29.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 2097152 ORDER BY rowid DESC
+  }
+} {42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.29.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 2097152 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.30.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=128
+  }
+} {49 0000000000000080}
+do_test boundary1-2.30.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='0000000000000080'
+  }
+} {128 49}
+do_test boundary1-2.30.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=49
+  }
+} {128 0000000000000080}
+do_test boundary1-2.30.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 128 ORDER BY a
+  }
+} {3 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 34 35 36 39 40 42 43 45 46 48 50 51 56 57 61 62}
+do_test boundary1-2.30.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 128 ORDER BY a DESC
+  }
+} {62 61 57 56 51 50 48 46 45 43 42 40 39 36 35 34 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 3}
+do_test boundary1-2.30.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 128 ORDER BY rowid
+  }
+} {30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.30.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 128 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30}
+do_test boundary1-2.30.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 128 ORDER BY x
+  }
+} {30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.30.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 128 ORDER BY a
+  }
+} {3 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 34 35 36 39 40 42 43 45 46 48 49 50 51 56 57 61 62}
+do_test boundary1-2.30.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 128 ORDER BY a DESC
+  }
+} {62 61 57 56 51 50 49 48 46 45 43 42 40 39 36 35 34 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 3}
+do_test boundary1-2.30.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 128 ORDER BY rowid
+  }
+} {49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.30.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 128 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49}
+do_test boundary1-2.30.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 128 ORDER BY x
+  }
+} {49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.30.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 128 ORDER BY a
+  }
+} {1 2 4 5 11 21 29 31 32 33 37 38 41 44 47 52 53 54 55 58 59 60 63 64}
+do_test boundary1-2.30.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 128 ORDER BY a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 47 44 41 38 37 33 32 31 29 21 11 5 4 2 1}
+do_test boundary1-2.30.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 128 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4}
+do_test boundary1-2.30.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 128 ORDER BY rowid DESC
+  }
+} {4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.30.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 128 ORDER BY x
+  }
+} {59 60 41 5 31 4 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.30.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 128 ORDER BY a
+  }
+} {1 2 4 5 11 21 29 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 63 64}
+do_test boundary1-2.30.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 128 ORDER BY a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 29 21 11 5 4 2 1}
+do_test boundary1-2.30.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 128 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49}
+do_test boundary1-2.30.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 128 ORDER BY rowid DESC
+  }
+} {49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.30.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 128 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.31.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=255
+  }
+} {30 00000000000000ff}
+do_test boundary1-2.31.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='00000000000000ff'
+  }
+} {255 30}
+do_test boundary1-2.31.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=30
+  }
+} {255 00000000000000ff}
+do_test boundary1-2.31.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 255 ORDER BY a
+  }
+} {3 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 50 51 56 57 61 62}
+do_test boundary1-2.31.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 255 ORDER BY a DESC
+  }
+} {62 61 57 56 51 50 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 3}
+do_test boundary1-2.31.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 255 ORDER BY rowid
+  }
+} {61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.31.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 255 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61}
+do_test boundary1-2.31.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 255 ORDER BY x
+  }
+} {61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.31.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 255 ORDER BY a
+  }
+} {3 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 34 35 36 39 40 42 43 45 46 48 50 51 56 57 61 62}
+do_test boundary1-2.31.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 255 ORDER BY a DESC
+  }
+} {62 61 57 56 51 50 48 46 45 43 42 40 39 36 35 34 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 3}
+do_test boundary1-2.31.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 255 ORDER BY rowid
+  }
+} {30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.31.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 255 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30}
+do_test boundary1-2.31.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 255 ORDER BY x
+  }
+} {30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.31.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 255 ORDER BY a
+  }
+} {1 2 4 5 11 21 29 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 63 64}
+do_test boundary1-2.31.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 255 ORDER BY a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 29 21 11 5 4 2 1}
+do_test boundary1-2.31.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 255 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49}
+do_test boundary1-2.31.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 255 ORDER BY rowid DESC
+  }
+} {49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.31.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 255 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.31.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 255 ORDER BY a
+  }
+} {1 2 4 5 11 21 29 30 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 63 64}
+do_test boundary1-2.31.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 255 ORDER BY a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 30 29 21 11 5 4 2 1}
+do_test boundary1-2.31.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 255 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30}
+do_test boundary1-2.31.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 255 ORDER BY rowid DESC
+  }
+} {30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.31.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 255 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.32.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=-2147483648
+  }
+} {11 ffffffff80000000}
+do_test boundary1-2.32.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='ffffffff80000000'
+  }
+} {-2147483648 11}
+do_test boundary1-2.32.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=11
+  }
+} {-2147483648 ffffffff80000000}
+do_test boundary1-2.32.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -2147483648 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary1-2.32.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -2147483648 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3 1}
+do_test boundary1-2.32.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -2147483648 ORDER BY rowid
+  }
+} {1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.32.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -2147483648 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1}
+do_test boundary1-2.32.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -2147483648 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.32.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -2147483648 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary1-2.32.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -2147483648 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary1-2.32.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -2147483648 ORDER BY rowid
+  }
+} {11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.32.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -2147483648 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11}
+do_test boundary1-2.32.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -2147483648 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.32.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -2147483648 ORDER BY a
+  }
+} {2 21 44 47 55 58 63 64}
+do_test boundary1-2.32.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -2147483648 ORDER BY a DESC
+  }
+} {64 63 58 55 47 44 21 2}
+do_test boundary1-2.32.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -2147483648 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47}
+do_test boundary1-2.32.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -2147483648 ORDER BY rowid DESC
+  }
+} {47 63 58 44 21 64 2 55}
+do_test boundary1-2.32.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -2147483648 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47}
+do_test boundary1-2.32.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -2147483648 ORDER BY a
+  }
+} {2 11 21 44 47 55 58 63 64}
+do_test boundary1-2.32.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -2147483648 ORDER BY a DESC
+  }
+} {64 63 58 55 47 44 21 11 2}
+do_test boundary1-2.32.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -2147483648 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11}
+do_test boundary1-2.32.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -2147483648 ORDER BY rowid DESC
+  }
+} {11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.32.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -2147483648 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11}
+do_test boundary1-2.33.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=34359738367
+  }
+} {39 00000007ffffffff}
+do_test boundary1-2.33.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='00000007ffffffff'
+  }
+} {34359738367 39}
+do_test boundary1-2.33.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=39
+  }
+} {34359738367 00000007ffffffff}
+do_test boundary1-2.33.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 34359738367 ORDER BY a
+  }
+} {3 7 10 13 17 19 22 25 26 27 28 34 35 43 45 46 56 57}
+do_test boundary1-2.33.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 34359738367 ORDER BY a DESC
+  }
+} {57 56 46 45 43 35 34 28 27 26 25 22 19 17 13 10 7 3}
+do_test boundary1-2.33.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 34359738367 ORDER BY rowid
+  }
+} {22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.33.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 34359738367 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22}
+do_test boundary1-2.33.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 34359738367 ORDER BY x
+  }
+} {22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.33.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 34359738367 ORDER BY a
+  }
+} {3 7 10 13 17 19 22 25 26 27 28 34 35 39 43 45 46 56 57}
+do_test boundary1-2.33.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 34359738367 ORDER BY a DESC
+  }
+} {57 56 46 45 43 39 35 34 28 27 26 25 22 19 17 13 10 7 3}
+do_test boundary1-2.33.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 34359738367 ORDER BY rowid
+  }
+} {39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.33.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 34359738367 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39}
+do_test boundary1-2.33.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 34359738367 ORDER BY x
+  }
+} {39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.33.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 34359738367 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 23 24 29 30 31 32 33 36 37 38 40 41 42 44 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary1-2.33.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 34359738367 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 44 42 41 40 38 37 36 33 32 31 30 29 24 23 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary1-2.33.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 34359738367 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36}
+do_test boundary1-2.33.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 34359738367 ORDER BY rowid DESC
+  }
+} {36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.33.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 34359738367 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.33.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 34359738367 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 23 24 29 30 31 32 33 36 37 38 39 40 41 42 44 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary1-2.33.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 34359738367 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 44 42 41 40 39 38 37 36 33 32 31 30 29 24 23 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary1-2.33.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 34359738367 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39}
+do_test boundary1-2.33.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 34359738367 ORDER BY rowid DESC
+  }
+} {39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.33.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 34359738367 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.34.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=-549755813889
+  }
+} {58 ffffff7fffffffff}
+do_test boundary1-2.34.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='ffffff7fffffffff'
+  }
+} {-549755813889 58}
+do_test boundary1-2.34.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=58
+  }
+} {-549755813889 ffffff7fffffffff}
+do_test boundary1-2.34.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -549755813889 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 47 48 49 50 51 52 53 54 56 57 59 60 61 62 63}
+do_test boundary1-2.34.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -549755813889 ORDER BY a DESC
+  }
+} {63 62 61 60 59 57 56 54 53 52 51 50 49 48 47 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary1-2.34.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -549755813889 ORDER BY rowid
+  }
+} {63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.34.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -549755813889 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63}
+do_test boundary1-2.34.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -549755813889 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.34.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -549755813889 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 47 48 49 50 51 52 53 54 56 57 58 59 60 61 62 63}
+do_test boundary1-2.34.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -549755813889 ORDER BY a DESC
+  }
+} {63 62 61 60 59 58 57 56 54 53 52 51 50 49 48 47 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary1-2.34.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -549755813889 ORDER BY rowid
+  }
+} {58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.34.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -549755813889 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58}
+do_test boundary1-2.34.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -549755813889 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.34.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -549755813889 ORDER BY a
+  }
+} {2 21 44 55 64}
+do_test boundary1-2.34.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -549755813889 ORDER BY a DESC
+  }
+} {64 55 44 21 2}
+do_test boundary1-2.34.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -549755813889 ORDER BY rowid
+  }
+} {55 2 64 21 44}
+do_test boundary1-2.34.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -549755813889 ORDER BY rowid DESC
+  }
+} {44 21 64 2 55}
+do_test boundary1-2.34.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -549755813889 ORDER BY x
+  }
+} {55 2 64 21 44}
+do_test boundary1-2.34.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -549755813889 ORDER BY a
+  }
+} {2 21 44 55 58 64}
+do_test boundary1-2.34.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -549755813889 ORDER BY a DESC
+  }
+} {64 58 55 44 21 2}
+do_test boundary1-2.34.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -549755813889 ORDER BY rowid
+  }
+} {55 2 64 21 44 58}
+do_test boundary1-2.34.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -549755813889 ORDER BY rowid DESC
+  }
+} {58 44 21 64 2 55}
+do_test boundary1-2.34.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -549755813889 ORDER BY x
+  }
+} {55 2 64 21 44 58}
+do_test boundary1-2.35.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=-32768
+  }
+} {32 ffffffffffff8000}
+do_test boundary1-2.35.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='ffffffffffff8000'
+  }
+} {-32768 32}
+do_test boundary1-2.35.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=32
+  }
+} {-32768 ffffffffffff8000}
+do_test boundary1-2.35.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -32768 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary1-2.35.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -32768 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary1-2.35.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -32768 ORDER BY rowid
+  }
+} {54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.35.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -32768 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54}
+do_test boundary1-2.35.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -32768 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 54 53 52 33 38}
+do_test boundary1-2.35.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -32768 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 32 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary1-2.35.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -32768 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 32 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary1-2.35.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -32768 ORDER BY rowid
+  }
+} {32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.35.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -32768 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32}
+do_test boundary1-2.35.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -32768 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 32 54 53 52 33 38}
+do_test boundary1-2.35.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -32768 ORDER BY a
+  }
+} {1 2 11 21 29 37 44 47 55 58 63 64}
+do_test boundary1-2.35.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -32768 ORDER BY a DESC
+  }
+} {64 63 58 55 47 44 37 29 21 11 2 1}
+do_test boundary1-2.35.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -32768 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29}
+do_test boundary1-2.35.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -32768 ORDER BY rowid DESC
+  }
+} {29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.35.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -32768 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29}
+do_test boundary1-2.35.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -32768 ORDER BY a
+  }
+} {1 2 11 21 29 32 37 44 47 55 58 63 64}
+do_test boundary1-2.35.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -32768 ORDER BY a DESC
+  }
+} {64 63 58 55 47 44 37 32 29 21 11 2 1}
+do_test boundary1-2.35.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -32768 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32}
+do_test boundary1-2.35.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -32768 ORDER BY rowid DESC
+  }
+} {32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.35.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -32768 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32}
+do_test boundary1-2.36.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=2147483647
+  }
+} {20 000000007fffffff}
+do_test boundary1-2.36.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='000000007fffffff'
+  }
+} {2147483647 20}
+do_test boundary1-2.36.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=20
+  }
+} {2147483647 000000007fffffff}
+do_test boundary1-2.36.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 2147483647 ORDER BY a
+  }
+} {3 7 10 13 14 17 19 22 25 26 27 28 34 35 36 39 43 45 46 51 56 57}
+do_test boundary1-2.36.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 2147483647 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 39 36 35 34 28 27 26 25 22 19 17 14 13 10 7 3}
+do_test boundary1-2.36.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 2147483647 ORDER BY rowid
+  }
+} {51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.36.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 2147483647 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51}
+do_test boundary1-2.36.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 2147483647 ORDER BY x
+  }
+} {51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.36.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 2147483647 ORDER BY a
+  }
+} {3 7 10 13 14 17 19 20 22 25 26 27 28 34 35 36 39 43 45 46 51 56 57}
+do_test boundary1-2.36.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 2147483647 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 39 36 35 34 28 27 26 25 22 20 19 17 14 13 10 7 3}
+do_test boundary1-2.36.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 2147483647 ORDER BY rowid
+  }
+} {20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.36.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 2147483647 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20}
+do_test boundary1-2.36.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 2147483647 ORDER BY x
+  }
+} {20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.36.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 2147483647 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 15 16 18 21 23 24 29 30 31 32 33 37 38 40 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary1-2.36.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 2147483647 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 40 38 37 33 32 31 30 29 24 23 21 18 16 15 12 11 9 8 6 5 4 2 1}
+do_test boundary1-2.36.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 2147483647 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40}
+do_test boundary1-2.36.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 2147483647 ORDER BY rowid DESC
+  }
+} {40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.36.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 2147483647 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.36.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 2147483647 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 15 16 18 20 21 23 24 29 30 31 32 33 37 38 40 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary1-2.36.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 2147483647 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 40 38 37 33 32 31 30 29 24 23 21 20 18 16 15 12 11 9 8 6 5 4 2 1}
+do_test boundary1-2.36.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 2147483647 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20}
+do_test boundary1-2.36.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 2147483647 ORDER BY rowid DESC
+  }
+} {20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.36.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 2147483647 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.37.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=-129
+  }
+} {54 ffffffffffffff7f}
+do_test boundary1-2.37.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='ffffffffffffff7f'
+  }
+} {-129 54}
+do_test boundary1-2.37.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=54
+  }
+} {-129 ffffffffffffff7f}
+do_test boundary1-2.37.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -129 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 52 53 56 57 59 60 61 62}
+do_test boundary1-2.37.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -129 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 53 52 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary1-2.37.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -129 ORDER BY rowid
+  }
+} {53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.37.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -129 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53}
+do_test boundary1-2.37.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -129 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 53 52 33 38}
+do_test boundary1-2.37.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -129 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary1-2.37.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -129 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary1-2.37.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -129 ORDER BY rowid
+  }
+} {54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.37.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -129 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54}
+do_test boundary1-2.37.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -129 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 54 53 52 33 38}
+do_test boundary1-2.37.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -129 ORDER BY a
+  }
+} {1 2 11 21 29 32 37 44 47 55 58 63 64}
+do_test boundary1-2.37.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -129 ORDER BY a DESC
+  }
+} {64 63 58 55 47 44 37 32 29 21 11 2 1}
+do_test boundary1-2.37.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -129 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32}
+do_test boundary1-2.37.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -129 ORDER BY rowid DESC
+  }
+} {32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.37.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -129 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32}
+do_test boundary1-2.37.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -129 ORDER BY a
+  }
+} {1 2 11 21 29 32 37 44 47 54 55 58 63 64}
+do_test boundary1-2.37.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -129 ORDER BY a DESC
+  }
+} {64 63 58 55 54 47 44 37 32 29 21 11 2 1}
+do_test boundary1-2.37.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -129 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54}
+do_test boundary1-2.37.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -129 ORDER BY rowid DESC
+  }
+} {54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.37.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -129 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54}
+do_test boundary1-2.38.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=-128
+  }
+} {53 ffffffffffffff80}
+do_test boundary1-2.38.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='ffffffffffffff80'
+  }
+} {-128 53}
+do_test boundary1-2.38.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=53
+  }
+} {-128 ffffffffffffff80}
+do_test boundary1-2.38.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -128 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 52 56 57 59 60 61 62}
+do_test boundary1-2.38.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -128 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 52 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary1-2.38.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -128 ORDER BY rowid
+  }
+} {52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.38.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -128 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52}
+do_test boundary1-2.38.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -128 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 52 33 38}
+do_test boundary1-2.38.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -128 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 52 53 56 57 59 60 61 62}
+do_test boundary1-2.38.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -128 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 53 52 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary1-2.38.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -128 ORDER BY rowid
+  }
+} {53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.38.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -128 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53}
+do_test boundary1-2.38.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -128 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 53 52 33 38}
+do_test boundary1-2.38.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -128 ORDER BY a
+  }
+} {1 2 11 21 29 32 37 44 47 54 55 58 63 64}
+do_test boundary1-2.38.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -128 ORDER BY a DESC
+  }
+} {64 63 58 55 54 47 44 37 32 29 21 11 2 1}
+do_test boundary1-2.38.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -128 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54}
+do_test boundary1-2.38.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -128 ORDER BY rowid DESC
+  }
+} {54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.38.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -128 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54}
+do_test boundary1-2.38.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -128 ORDER BY a
+  }
+} {1 2 11 21 29 32 37 44 47 53 54 55 58 63 64}
+do_test boundary1-2.38.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -128 ORDER BY a DESC
+  }
+} {64 63 58 55 54 53 47 44 37 32 29 21 11 2 1}
+do_test boundary1-2.38.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -128 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53}
+do_test boundary1-2.38.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -128 ORDER BY rowid DESC
+  }
+} {53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.38.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -128 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53}
+do_test boundary1-2.39.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=72057594037927936
+  }
+} {28 0100000000000000}
+do_test boundary1-2.39.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='0100000000000000'
+  }
+} {72057594037927936 28}
+do_test boundary1-2.39.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=28
+  }
+} {72057594037927936 0100000000000000}
+do_test boundary1-2.39.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 72057594037927936 ORDER BY a
+  }
+} {3}
+do_test boundary1-2.39.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 72057594037927936 ORDER BY a DESC
+  }
+} {3}
+do_test boundary1-2.39.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 72057594037927936 ORDER BY rowid
+  }
+} {3}
+do_test boundary1-2.39.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 72057594037927936 ORDER BY rowid DESC
+  }
+} {3}
+do_test boundary1-2.39.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 72057594037927936 ORDER BY x
+  }
+} {3}
+do_test boundary1-2.39.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 72057594037927936 ORDER BY a
+  }
+} {3 28}
+do_test boundary1-2.39.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 72057594037927936 ORDER BY a DESC
+  }
+} {28 3}
+do_test boundary1-2.39.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 72057594037927936 ORDER BY rowid
+  }
+} {28 3}
+do_test boundary1-2.39.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 72057594037927936 ORDER BY rowid DESC
+  }
+} {3 28}
+do_test boundary1-2.39.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 72057594037927936 ORDER BY x
+  }
+} {28 3}
+do_test boundary1-2.39.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 72057594037927936 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary1-2.39.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 72057594037927936 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary1-2.39.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 72057594037927936 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17}
+do_test boundary1-2.39.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 72057594037927936 ORDER BY rowid DESC
+  }
+} {17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.39.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 72057594037927936 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.39.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 72057594037927936 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary1-2.39.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 72057594037927936 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary1-2.39.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 72057594037927936 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28}
+do_test boundary1-2.39.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 72057594037927936 ORDER BY rowid DESC
+  }
+} {28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.39.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 72057594037927936 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.40.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=2147483648
+  }
+} {51 0000000080000000}
+do_test boundary1-2.40.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='0000000080000000'
+  }
+} {2147483648 51}
+do_test boundary1-2.40.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=51
+  }
+} {2147483648 0000000080000000}
+do_test boundary1-2.40.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 2147483648 ORDER BY a
+  }
+} {3 7 10 13 14 17 19 22 25 26 27 28 34 35 36 39 43 45 46 56 57}
+do_test boundary1-2.40.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 2147483648 ORDER BY a DESC
+  }
+} {57 56 46 45 43 39 36 35 34 28 27 26 25 22 19 17 14 13 10 7 3}
+do_test boundary1-2.40.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 2147483648 ORDER BY rowid
+  }
+} {14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.40.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 2147483648 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14}
+do_test boundary1-2.40.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 2147483648 ORDER BY x
+  }
+} {14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.40.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 2147483648 ORDER BY a
+  }
+} {3 7 10 13 14 17 19 22 25 26 27 28 34 35 36 39 43 45 46 51 56 57}
+do_test boundary1-2.40.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 2147483648 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 39 36 35 34 28 27 26 25 22 19 17 14 13 10 7 3}
+do_test boundary1-2.40.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 2147483648 ORDER BY rowid
+  }
+} {51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.40.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 2147483648 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51}
+do_test boundary1-2.40.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 2147483648 ORDER BY x
+  }
+} {51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.40.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 2147483648 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 15 16 18 20 21 23 24 29 30 31 32 33 37 38 40 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary1-2.40.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 2147483648 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 40 38 37 33 32 31 30 29 24 23 21 20 18 16 15 12 11 9 8 6 5 4 2 1}
+do_test boundary1-2.40.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 2147483648 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20}
+do_test boundary1-2.40.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 2147483648 ORDER BY rowid DESC
+  }
+} {20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.40.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 2147483648 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.40.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 2147483648 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 15 16 18 20 21 23 24 29 30 31 32 33 37 38 40 41 42 44 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary1-2.40.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 2147483648 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 44 42 41 40 38 37 33 32 31 30 29 24 23 21 20 18 16 15 12 11 9 8 6 5 4 2 1}
+do_test boundary1-2.40.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 2147483648 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51}
+do_test boundary1-2.40.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 2147483648 ORDER BY rowid DESC
+  }
+} {51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.40.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 2147483648 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.41.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=549755813887
+  }
+} {46 0000007fffffffff}
+do_test boundary1-2.41.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='0000007fffffffff'
+  }
+} {549755813887 46}
+do_test boundary1-2.41.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=46
+  }
+} {549755813887 0000007fffffffff}
+do_test boundary1-2.41.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 549755813887 ORDER BY a
+  }
+} {3 7 10 13 17 19 25 26 27 28 34 35 43 45 56 57}
+do_test boundary1-2.41.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 549755813887 ORDER BY a DESC
+  }
+} {57 56 45 43 35 34 28 27 26 25 19 17 13 10 7 3}
+do_test boundary1-2.41.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 549755813887 ORDER BY rowid
+  }
+} {35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.41.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 549755813887 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35}
+do_test boundary1-2.41.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 549755813887 ORDER BY x
+  }
+} {35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.41.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 549755813887 ORDER BY a
+  }
+} {3 7 10 13 17 19 25 26 27 28 34 35 43 45 46 56 57}
+do_test boundary1-2.41.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 549755813887 ORDER BY a DESC
+  }
+} {57 56 46 45 43 35 34 28 27 26 25 19 17 13 10 7 3}
+do_test boundary1-2.41.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 549755813887 ORDER BY rowid
+  }
+} {46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.41.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 549755813887 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46}
+do_test boundary1-2.41.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 549755813887 ORDER BY x
+  }
+} {46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.41.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 549755813887 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 22 23 24 29 30 31 32 33 36 37 38 39 40 41 42 44 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary1-2.41.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 549755813887 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 44 42 41 40 39 38 37 36 33 32 31 30 29 24 23 22 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary1-2.41.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 549755813887 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22}
+do_test boundary1-2.41.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 549755813887 ORDER BY rowid DESC
+  }
+} {22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.41.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 549755813887 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.41.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 549755813887 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 22 23 24 29 30 31 32 33 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary1-2.41.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 549755813887 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 33 32 31 30 29 24 23 22 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary1-2.41.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 549755813887 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46}
+do_test boundary1-2.41.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 549755813887 ORDER BY rowid DESC
+  }
+} {46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.41.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 549755813887 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.42.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=-549755813888
+  }
+} {63 ffffff8000000000}
+do_test boundary1-2.42.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='ffffff8000000000'
+  }
+} {-549755813888 63}
+do_test boundary1-2.42.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=63
+  }
+} {-549755813888 ffffff8000000000}
+do_test boundary1-2.42.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -549755813888 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 47 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary1-2.42.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -549755813888 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 47 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary1-2.42.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -549755813888 ORDER BY rowid
+  }
+} {47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.42.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -549755813888 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47}
+do_test boundary1-2.42.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -549755813888 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.42.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -549755813888 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 47 48 49 50 51 52 53 54 56 57 59 60 61 62 63}
+do_test boundary1-2.42.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -549755813888 ORDER BY a DESC
+  }
+} {63 62 61 60 59 57 56 54 53 52 51 50 49 48 47 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary1-2.42.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -549755813888 ORDER BY rowid
+  }
+} {63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.42.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -549755813888 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63}
+do_test boundary1-2.42.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -549755813888 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.42.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -549755813888 ORDER BY a
+  }
+} {2 21 44 55 58 64}
+do_test boundary1-2.42.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -549755813888 ORDER BY a DESC
+  }
+} {64 58 55 44 21 2}
+do_test boundary1-2.42.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -549755813888 ORDER BY rowid
+  }
+} {55 2 64 21 44 58}
+do_test boundary1-2.42.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -549755813888 ORDER BY rowid DESC
+  }
+} {58 44 21 64 2 55}
+do_test boundary1-2.42.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -549755813888 ORDER BY x
+  }
+} {55 2 64 21 44 58}
+do_test boundary1-2.42.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -549755813888 ORDER BY a
+  }
+} {2 21 44 55 58 63 64}
+do_test boundary1-2.42.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -549755813888 ORDER BY a DESC
+  }
+} {64 63 58 55 44 21 2}
+do_test boundary1-2.42.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -549755813888 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63}
+do_test boundary1-2.42.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -549755813888 ORDER BY rowid DESC
+  }
+} {63 58 44 21 64 2 55}
+do_test boundary1-2.42.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -549755813888 ORDER BY x
+  }
+} {55 2 64 21 44 58 63}
+do_test boundary1-2.43.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=281474976710655
+  }
+} {10 0000ffffffffffff}
+do_test boundary1-2.43.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='0000ffffffffffff'
+  }
+} {281474976710655 10}
+do_test boundary1-2.43.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=10
+  }
+} {281474976710655 0000ffffffffffff}
+do_test boundary1-2.43.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 281474976710655 ORDER BY a
+  }
+} {3 13 17 26 27 28 43 45}
+do_test boundary1-2.43.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 281474976710655 ORDER BY a DESC
+  }
+} {45 43 28 27 26 17 13 3}
+do_test boundary1-2.43.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 281474976710655 ORDER BY rowid
+  }
+} {26 13 43 27 45 17 28 3}
+do_test boundary1-2.43.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 281474976710655 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26}
+do_test boundary1-2.43.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 281474976710655 ORDER BY x
+  }
+} {26 13 43 27 45 17 28 3}
+do_test boundary1-2.43.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 281474976710655 ORDER BY a
+  }
+} {3 10 13 17 26 27 28 43 45}
+do_test boundary1-2.43.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 281474976710655 ORDER BY a DESC
+  }
+} {45 43 28 27 26 17 13 10 3}
+do_test boundary1-2.43.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 281474976710655 ORDER BY rowid
+  }
+} {10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.43.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 281474976710655 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10}
+do_test boundary1-2.43.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 281474976710655 ORDER BY x
+  }
+} {10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.43.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 281474976710655 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 11 12 14 15 16 18 19 20 21 22 23 24 25 29 30 31 32 33 34 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary1-2.43.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 281474976710655 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 34 33 32 31 30 29 25 24 23 22 21 20 19 18 16 15 14 12 11 9 8 7 6 5 4 2 1}
+do_test boundary1-2.43.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 281474976710655 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34}
+do_test boundary1-2.43.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 281474976710655 ORDER BY rowid DESC
+  }
+} {34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.43.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 281474976710655 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.43.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 281474976710655 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 14 15 16 18 19 20 21 22 23 24 25 29 30 31 32 33 34 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary1-2.43.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 281474976710655 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 34 33 32 31 30 29 25 24 23 22 21 20 19 18 16 15 14 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary1-2.43.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 281474976710655 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10}
+do_test boundary1-2.43.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 281474976710655 ORDER BY rowid DESC
+  }
+} {10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.43.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 281474976710655 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.44.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=4398046511103
+  }
+} {7 000003ffffffffff}
+do_test boundary1-2.44.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='000003ffffffffff'
+  }
+} {4398046511103 7}
+do_test boundary1-2.44.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=7
+  }
+} {4398046511103 000003ffffffffff}
+do_test boundary1-2.44.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 4398046511103 ORDER BY a
+  }
+} {3 10 13 17 25 26 27 28 34 43 45 56}
+do_test boundary1-2.44.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 4398046511103 ORDER BY a DESC
+  }
+} {56 45 43 34 28 27 26 25 17 13 10 3}
+do_test boundary1-2.44.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 4398046511103 ORDER BY rowid
+  }
+} {56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.44.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 4398046511103 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56}
+do_test boundary1-2.44.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 4398046511103 ORDER BY x
+  }
+} {56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.44.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 4398046511103 ORDER BY a
+  }
+} {3 7 10 13 17 25 26 27 28 34 43 45 56}
+do_test boundary1-2.44.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 4398046511103 ORDER BY a DESC
+  }
+} {56 45 43 34 28 27 26 25 17 13 10 7 3}
+do_test boundary1-2.44.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 4398046511103 ORDER BY rowid
+  }
+} {7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.44.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 4398046511103 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7}
+do_test boundary1-2.44.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 4398046511103 ORDER BY x
+  }
+} {7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.44.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 4398046511103 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 19 20 21 22 23 24 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 57 58 59 60 61 62 63 64}
+do_test boundary1-2.44.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 4398046511103 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 24 23 22 21 20 19 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary1-2.44.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 4398046511103 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19}
+do_test boundary1-2.44.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 4398046511103 ORDER BY rowid DESC
+  }
+} {19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.44.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 4398046511103 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.44.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 4398046511103 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 11 12 14 15 16 18 19 20 21 22 23 24 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 57 58 59 60 61 62 63 64}
+do_test boundary1-2.44.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 4398046511103 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 24 23 22 21 20 19 18 16 15 14 12 11 9 8 7 6 5 4 2 1}
+do_test boundary1-2.44.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 4398046511103 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7}
+do_test boundary1-2.44.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 4398046511103 ORDER BY rowid DESC
+  }
+} {7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.44.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 4398046511103 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.45.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=268435455
+  }
+} {12 000000000fffffff}
+do_test boundary1-2.45.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='000000000fffffff'
+  }
+} {268435455 12}
+do_test boundary1-2.45.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=12
+  }
+} {268435455 000000000fffffff}
+do_test boundary1-2.45.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 268435455 ORDER BY a
+  }
+} {3 7 10 13 14 17 19 20 22 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary1-2.45.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 268435455 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 22 20 19 17 14 13 10 7 3}
+do_test boundary1-2.45.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 268435455 ORDER BY rowid
+  }
+} {40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.45.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 268435455 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40}
+do_test boundary1-2.45.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 268435455 ORDER BY x
+  }
+} {40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.45.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 268435455 ORDER BY a
+  }
+} {3 7 10 12 13 14 17 19 20 22 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary1-2.45.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 268435455 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 22 20 19 17 14 13 12 10 7 3}
+do_test boundary1-2.45.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 268435455 ORDER BY rowid
+  }
+} {12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.45.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 268435455 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12}
+do_test boundary1-2.45.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 268435455 ORDER BY x
+  }
+} {12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.45.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 268435455 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 15 16 18 21 23 24 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary1-2.45.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 268435455 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 24 23 21 18 16 15 11 9 8 6 5 4 2 1}
+do_test boundary1-2.45.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 268435455 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6}
+do_test boundary1-2.45.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 268435455 ORDER BY rowid DESC
+  }
+} {6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.45.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 268435455 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.45.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 268435455 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 15 16 18 21 23 24 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary1-2.45.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 268435455 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 24 23 21 18 16 15 12 11 9 8 6 5 4 2 1}
+do_test boundary1-2.45.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 268435455 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12}
+do_test boundary1-2.45.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 268435455 ORDER BY rowid DESC
+  }
+} {12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.45.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 268435455 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.46.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=-9223372036854775808
+  }
+} {55 8000000000000000}
+do_test boundary1-2.46.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='8000000000000000'
+  }
+} {-9223372036854775808 55}
+do_test boundary1-2.46.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=55
+  }
+} {-9223372036854775808 8000000000000000}
+do_test boundary1-2.46.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -9223372036854775808 ORDER BY a
+  }
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 56 57 58 59 60 61 62 63 64}
+do_test boundary1-2.46.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -9223372036854775808 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1}
+do_test boundary1-2.46.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -9223372036854775808 ORDER BY rowid
+  }
+} {2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.46.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -9223372036854775808 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2}
+do_test boundary1-2.46.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -9223372036854775808 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.46.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -9223372036854775808 ORDER BY a
+  }
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary1-2.46.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -9223372036854775808 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1}
+do_test boundary1-2.46.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -9223372036854775808 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.46.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -9223372036854775808 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.46.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -9223372036854775808 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.46.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -9223372036854775808 ORDER BY a
+  }
+} {}
+do_test boundary1-2.46.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -9223372036854775808 ORDER BY a DESC
+  }
+} {}
+do_test boundary1-2.46.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -9223372036854775808 ORDER BY rowid
+  }
+} {}
+do_test boundary1-2.46.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -9223372036854775808 ORDER BY rowid DESC
+  }
+} {}
+do_test boundary1-2.46.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -9223372036854775808 ORDER BY x
+  }
+} {}
+do_test boundary1-2.46.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -9223372036854775808 ORDER BY a
+  }
+} {55}
+do_test boundary1-2.46.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -9223372036854775808 ORDER BY a DESC
+  }
+} {55}
+do_test boundary1-2.46.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -9223372036854775808 ORDER BY rowid
+  }
+} {55}
+do_test boundary1-2.46.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -9223372036854775808 ORDER BY rowid DESC
+  }
+} {55}
+do_test boundary1-2.46.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -9223372036854775808 ORDER BY x
+  }
+} {55}
+do_test boundary1-2.47.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=562949953421312
+  }
+} {43 0002000000000000}
+do_test boundary1-2.47.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='0002000000000000'
+  }
+} {562949953421312 43}
+do_test boundary1-2.47.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=43
+  }
+} {562949953421312 0002000000000000}
+do_test boundary1-2.47.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 562949953421312 ORDER BY a
+  }
+} {3 17 27 28 45}
+do_test boundary1-2.47.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 562949953421312 ORDER BY a DESC
+  }
+} {45 28 27 17 3}
+do_test boundary1-2.47.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 562949953421312 ORDER BY rowid
+  }
+} {27 45 17 28 3}
+do_test boundary1-2.47.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 562949953421312 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27}
+do_test boundary1-2.47.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 562949953421312 ORDER BY x
+  }
+} {27 45 17 28 3}
+do_test boundary1-2.47.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 562949953421312 ORDER BY a
+  }
+} {3 17 27 28 43 45}
+do_test boundary1-2.47.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 562949953421312 ORDER BY a DESC
+  }
+} {45 43 28 27 17 3}
+do_test boundary1-2.47.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 562949953421312 ORDER BY rowid
+  }
+} {43 27 45 17 28 3}
+do_test boundary1-2.47.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 562949953421312 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43}
+do_test boundary1-2.47.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 562949953421312 ORDER BY x
+  }
+} {43 27 45 17 28 3}
+do_test boundary1-2.47.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 562949953421312 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 18 19 20 21 22 23 24 25 26 29 30 31 32 33 34 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary1-2.47.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 562949953421312 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 34 33 32 31 30 29 26 25 24 23 22 21 20 19 18 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary1-2.47.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 562949953421312 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13}
+do_test boundary1-2.47.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 562949953421312 ORDER BY rowid DESC
+  }
+} {13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.47.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 562949953421312 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.47.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 562949953421312 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 18 19 20 21 22 23 24 25 26 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary1-2.47.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 562949953421312 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 26 25 24 23 22 21 20 19 18 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary1-2.47.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 562949953421312 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43}
+do_test boundary1-2.47.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 562949953421312 ORDER BY rowid DESC
+  }
+} {43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.47.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 562949953421312 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.48.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=-8388609
+  }
+} {1 ffffffffff7fffff}
+do_test boundary1-2.48.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='ffffffffff7fffff'
+  }
+} {-8388609 1}
+do_test boundary1-2.48.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=1
+  }
+} {-8388609 ffffffffff7fffff}
+do_test boundary1-2.48.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -8388609 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary1-2.48.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -8388609 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary1-2.48.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -8388609 ORDER BY rowid
+  }
+} {37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.48.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -8388609 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37}
+do_test boundary1-2.48.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -8388609 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 37 29 32 54 53 52 33 38}
+do_test boundary1-2.48.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -8388609 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary1-2.48.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -8388609 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3 1}
+do_test boundary1-2.48.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -8388609 ORDER BY rowid
+  }
+} {1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.48.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -8388609 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1}
+do_test boundary1-2.48.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -8388609 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.48.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -8388609 ORDER BY a
+  }
+} {2 11 21 44 47 55 58 63 64}
+do_test boundary1-2.48.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -8388609 ORDER BY a DESC
+  }
+} {64 63 58 55 47 44 21 11 2}
+do_test boundary1-2.48.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -8388609 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11}
+do_test boundary1-2.48.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -8388609 ORDER BY rowid DESC
+  }
+} {11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.48.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -8388609 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11}
+do_test boundary1-2.48.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -8388609 ORDER BY a
+  }
+} {1 2 11 21 44 47 55 58 63 64}
+do_test boundary1-2.48.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -8388609 ORDER BY a DESC
+  }
+} {64 63 58 55 47 44 21 11 2 1}
+do_test boundary1-2.48.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -8388609 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1}
+do_test boundary1-2.48.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -8388609 ORDER BY rowid DESC
+  }
+} {1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.48.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -8388609 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1}
+do_test boundary1-2.49.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=16777215
+  }
+} {9 0000000000ffffff}
+do_test boundary1-2.49.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='0000000000ffffff'
+  }
+} {16777215 9}
+do_test boundary1-2.49.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=9
+  }
+} {16777215 0000000000ffffff}
+do_test boundary1-2.49.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 16777215 ORDER BY a
+  }
+} {3 6 7 10 12 13 14 17 19 20 22 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary1-2.49.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 16777215 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 22 20 19 17 14 13 12 10 7 6 3}
+do_test boundary1-2.49.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 16777215 ORDER BY rowid
+  }
+} {6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.49.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 16777215 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6}
+do_test boundary1-2.49.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 16777215 ORDER BY x
+  }
+} {6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.49.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 16777215 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 17 19 20 22 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary1-2.49.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 16777215 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 22 20 19 17 14 13 12 10 9 7 6 3}
+do_test boundary1-2.49.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 16777215 ORDER BY rowid
+  }
+} {9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.49.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 16777215 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9}
+do_test boundary1-2.49.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 16777215 ORDER BY x
+  }
+} {9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.49.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 16777215 ORDER BY a
+  }
+} {1 2 4 5 8 11 15 16 18 21 23 24 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary1-2.49.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 16777215 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 24 23 21 18 16 15 11 8 5 4 2 1}
+do_test boundary1-2.49.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 16777215 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24}
+do_test boundary1-2.49.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 16777215 ORDER BY rowid DESC
+  }
+} {24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.49.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 16777215 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.49.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 16777215 ORDER BY a
+  }
+} {1 2 4 5 8 9 11 15 16 18 21 23 24 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary1-2.49.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 16777215 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 24 23 21 18 16 15 11 9 8 5 4 2 1}
+do_test boundary1-2.49.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 16777215 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9}
+do_test boundary1-2.49.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 16777215 ORDER BY rowid DESC
+  }
+} {9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.49.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 16777215 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.50.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=8388608
+  }
+} {24 0000000000800000}
+do_test boundary1-2.50.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='0000000000800000'
+  }
+} {8388608 24}
+do_test boundary1-2.50.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=24
+  }
+} {8388608 0000000000800000}
+do_test boundary1-2.50.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 8388608 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 17 19 20 22 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary1-2.50.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 8388608 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 22 20 19 17 14 13 12 10 9 7 6 3}
+do_test boundary1-2.50.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 8388608 ORDER BY rowid
+  }
+} {9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.50.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 8388608 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9}
+do_test boundary1-2.50.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 8388608 ORDER BY x
+  }
+} {9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.50.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 8388608 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 17 19 20 22 24 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary1-2.50.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 8388608 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 24 22 20 19 17 14 13 12 10 9 7 6 3}
+do_test boundary1-2.50.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 8388608 ORDER BY rowid
+  }
+} {24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.50.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 8388608 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24}
+do_test boundary1-2.50.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 8388608 ORDER BY x
+  }
+} {24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.50.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 8388608 ORDER BY a
+  }
+} {1 2 4 5 8 11 15 16 18 21 23 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary1-2.50.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 8388608 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 23 21 18 16 15 11 8 5 4 2 1}
+do_test boundary1-2.50.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 8388608 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18}
+do_test boundary1-2.50.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 8388608 ORDER BY rowid DESC
+  }
+} {18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.50.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 8388608 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.50.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 8388608 ORDER BY a
+  }
+} {1 2 4 5 8 11 15 16 18 21 23 24 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary1-2.50.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 8388608 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 24 23 21 18 16 15 11 8 5 4 2 1}
+do_test boundary1-2.50.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 8388608 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24}
+do_test boundary1-2.50.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 8388608 ORDER BY rowid DESC
+  }
+} {24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.50.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 8388608 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.51.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=16383
+  }
+} {8 0000000000003fff}
+do_test boundary1-2.51.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='0000000000003fff'
+  }
+} {16383 8}
+do_test boundary1-2.51.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=8
+  }
+} {16383 0000000000003fff}
+do_test boundary1-2.51.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 16383 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 50 51 56 57 62}
+do_test boundary1-2.51.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 16383 ORDER BY a DESC
+  }
+} {62 57 56 51 50 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 7 6 3}
+do_test boundary1-2.51.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 16383 ORDER BY rowid
+  }
+} {16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.51.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 16383 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16}
+do_test boundary1-2.51.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 16383 ORDER BY x
+  }
+} {16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.51.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 16383 ORDER BY a
+  }
+} {3 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 50 51 56 57 62}
+do_test boundary1-2.51.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 16383 ORDER BY a DESC
+  }
+} {62 57 56 51 50 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 3}
+do_test boundary1-2.51.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 16383 ORDER BY rowid
+  }
+} {8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.51.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 16383 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8}
+do_test boundary1-2.51.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 16383 ORDER BY x
+  }
+} {8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.51.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 16383 ORDER BY a
+  }
+} {1 2 4 5 11 21 29 30 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 61 63 64}
+do_test boundary1-2.51.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 16383 ORDER BY a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 30 29 21 11 5 4 2 1}
+do_test boundary1-2.51.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 16383 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61}
+do_test boundary1-2.51.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 16383 ORDER BY rowid DESC
+  }
+} {61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.51.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 16383 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.51.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 16383 ORDER BY a
+  }
+} {1 2 4 5 8 11 21 29 30 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 61 63 64}
+do_test boundary1-2.51.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 16383 ORDER BY a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 30 29 21 11 8 5 4 2 1}
+do_test boundary1-2.51.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 16383 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8}
+do_test boundary1-2.51.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 16383 ORDER BY rowid DESC
+  }
+} {8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.51.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 16383 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.52.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=140737488355328
+  }
+} {34 0000800000000000}
+do_test boundary1-2.52.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='0000800000000000'
+  }
+} {140737488355328 34}
+do_test boundary1-2.52.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=34
+  }
+} {140737488355328 0000800000000000}
+do_test boundary1-2.52.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 140737488355328 ORDER BY a
+  }
+} {3 10 13 17 26 27 28 43 45}
+do_test boundary1-2.52.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 140737488355328 ORDER BY a DESC
+  }
+} {45 43 28 27 26 17 13 10 3}
+do_test boundary1-2.52.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 140737488355328 ORDER BY rowid
+  }
+} {10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.52.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 140737488355328 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10}
+do_test boundary1-2.52.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 140737488355328 ORDER BY x
+  }
+} {10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.52.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 140737488355328 ORDER BY a
+  }
+} {3 10 13 17 26 27 28 34 43 45}
+do_test boundary1-2.52.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 140737488355328 ORDER BY a DESC
+  }
+} {45 43 34 28 27 26 17 13 10 3}
+do_test boundary1-2.52.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 140737488355328 ORDER BY rowid
+  }
+} {34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.52.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 140737488355328 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34}
+do_test boundary1-2.52.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 140737488355328 ORDER BY x
+  }
+} {34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.52.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 140737488355328 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 11 12 14 15 16 18 19 20 21 22 23 24 25 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary1-2.52.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 140737488355328 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 25 24 23 22 21 20 19 18 16 15 14 12 11 9 8 7 6 5 4 2 1}
+do_test boundary1-2.52.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 140737488355328 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25}
+do_test boundary1-2.52.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 140737488355328 ORDER BY rowid DESC
+  }
+} {25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.52.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 140737488355328 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.52.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 140737488355328 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 11 12 14 15 16 18 19 20 21 22 23 24 25 29 30 31 32 33 34 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary1-2.52.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 140737488355328 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 34 33 32 31 30 29 25 24 23 22 21 20 19 18 16 15 14 12 11 9 8 7 6 5 4 2 1}
+do_test boundary1-2.52.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 140737488355328 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34}
+do_test boundary1-2.52.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 140737488355328 ORDER BY rowid DESC
+  }
+} {34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.52.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 140737488355328 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.53.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=2097151
+  }
+} {15 00000000001fffff}
+do_test boundary1-2.53.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='00000000001fffff'
+  }
+} {2097151 15}
+do_test boundary1-2.53.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=15
+  }
+} {2097151 00000000001fffff}
+do_test boundary1-2.53.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 2097151 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 42 43 45 46 51 56 57}
+do_test boundary1-2.53.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 2097151 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 42 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 14 13 12 10 9 7 6 3}
+do_test boundary1-2.53.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 2097151 ORDER BY rowid
+  }
+} {42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.53.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 2097151 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42}
+do_test boundary1-2.53.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 2097151 ORDER BY x
+  }
+} {42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.53.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 2097151 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 15 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 42 43 45 46 51 56 57}
+do_test boundary1-2.53.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 2097151 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 42 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 15 14 13 12 10 9 7 6 3}
+do_test boundary1-2.53.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 2097151 ORDER BY rowid
+  }
+} {15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.53.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 2097151 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15}
+do_test boundary1-2.53.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 2097151 ORDER BY x
+  }
+} {15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.53.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 2097151 ORDER BY a
+  }
+} {1 2 4 5 8 11 16 21 23 29 30 31 32 33 37 38 41 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary1-2.53.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 2097151 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 41 38 37 33 32 31 30 29 23 21 16 11 8 5 4 2 1}
+do_test boundary1-2.53.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 2097151 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62}
+do_test boundary1-2.53.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 2097151 ORDER BY rowid DESC
+  }
+} {62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.53.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 2097151 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.53.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 2097151 ORDER BY a
+  }
+} {1 2 4 5 8 11 15 16 21 23 29 30 31 32 33 37 38 41 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary1-2.53.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 2097151 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 41 38 37 33 32 31 30 29 23 21 16 15 11 8 5 4 2 1}
+do_test boundary1-2.53.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 2097151 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15}
+do_test boundary1-2.53.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 2097151 ORDER BY rowid DESC
+  }
+} {15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.53.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 2097151 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.54.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=140737488355327
+  }
+} {25 00007fffffffffff}
+do_test boundary1-2.54.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='00007fffffffffff'
+  }
+} {140737488355327 25}
+do_test boundary1-2.54.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=25
+  }
+} {140737488355327 00007fffffffffff}
+do_test boundary1-2.54.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 140737488355327 ORDER BY a
+  }
+} {3 10 13 17 26 27 28 34 43 45}
+do_test boundary1-2.54.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 140737488355327 ORDER BY a DESC
+  }
+} {45 43 34 28 27 26 17 13 10 3}
+do_test boundary1-2.54.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 140737488355327 ORDER BY rowid
+  }
+} {34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.54.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 140737488355327 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34}
+do_test boundary1-2.54.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 140737488355327 ORDER BY x
+  }
+} {34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.54.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 140737488355327 ORDER BY a
+  }
+} {3 10 13 17 25 26 27 28 34 43 45}
+do_test boundary1-2.54.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 140737488355327 ORDER BY a DESC
+  }
+} {45 43 34 28 27 26 25 17 13 10 3}
+do_test boundary1-2.54.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 140737488355327 ORDER BY rowid
+  }
+} {25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.54.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 140737488355327 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25}
+do_test boundary1-2.54.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 140737488355327 ORDER BY x
+  }
+} {25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.54.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 140737488355327 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 11 12 14 15 16 18 19 20 21 22 23 24 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary1-2.54.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 140737488355327 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 24 23 22 21 20 19 18 16 15 14 12 11 9 8 7 6 5 4 2 1}
+do_test boundary1-2.54.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 140737488355327 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56}
+do_test boundary1-2.54.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 140737488355327 ORDER BY rowid DESC
+  }
+} {56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.54.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 140737488355327 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.54.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 140737488355327 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 11 12 14 15 16 18 19 20 21 22 23 24 25 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary1-2.54.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 140737488355327 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 25 24 23 22 21 20 19 18 16 15 14 12 11 9 8 7 6 5 4 2 1}
+do_test boundary1-2.54.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 140737488355327 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25}
+do_test boundary1-2.54.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 140737488355327 ORDER BY rowid DESC
+  }
+} {25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.54.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 140737488355327 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.55.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=281474976710656
+  }
+} {26 0001000000000000}
+do_test boundary1-2.55.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='0001000000000000'
+  }
+} {281474976710656 26}
+do_test boundary1-2.55.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=26
+  }
+} {281474976710656 0001000000000000}
+do_test boundary1-2.55.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 281474976710656 ORDER BY a
+  }
+} {3 13 17 27 28 43 45}
+do_test boundary1-2.55.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 281474976710656 ORDER BY a DESC
+  }
+} {45 43 28 27 17 13 3}
+do_test boundary1-2.55.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 281474976710656 ORDER BY rowid
+  }
+} {13 43 27 45 17 28 3}
+do_test boundary1-2.55.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 281474976710656 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13}
+do_test boundary1-2.55.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 281474976710656 ORDER BY x
+  }
+} {13 43 27 45 17 28 3}
+do_test boundary1-2.55.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 281474976710656 ORDER BY a
+  }
+} {3 13 17 26 27 28 43 45}
+do_test boundary1-2.55.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 281474976710656 ORDER BY a DESC
+  }
+} {45 43 28 27 26 17 13 3}
+do_test boundary1-2.55.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 281474976710656 ORDER BY rowid
+  }
+} {26 13 43 27 45 17 28 3}
+do_test boundary1-2.55.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 281474976710656 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26}
+do_test boundary1-2.55.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 281474976710656 ORDER BY x
+  }
+} {26 13 43 27 45 17 28 3}
+do_test boundary1-2.55.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 281474976710656 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 14 15 16 18 19 20 21 22 23 24 25 29 30 31 32 33 34 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary1-2.55.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 281474976710656 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 34 33 32 31 30 29 25 24 23 22 21 20 19 18 16 15 14 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary1-2.55.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 281474976710656 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10}
+do_test boundary1-2.55.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 281474976710656 ORDER BY rowid DESC
+  }
+} {10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.55.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 281474976710656 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.55.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 281474976710656 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 14 15 16 18 19 20 21 22 23 24 25 26 29 30 31 32 33 34 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary1-2.55.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 281474976710656 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 34 33 32 31 30 29 26 25 24 23 22 21 20 19 18 16 15 14 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary1-2.55.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 281474976710656 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26}
+do_test boundary1-2.55.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 281474976710656 ORDER BY rowid DESC
+  }
+} {26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.55.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 281474976710656 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.56.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=32767
+  }
+} {23 0000000000007fff}
+do_test boundary1-2.56.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='0000000000007fff'
+  }
+} {32767 23}
+do_test boundary1-2.56.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=23
+  }
+} {32767 0000000000007fff}
+do_test boundary1-2.56.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 32767 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 15 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 50 51 56 57 62}
+do_test boundary1-2.56.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 32767 ORDER BY a DESC
+  }
+} {62 57 56 51 50 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 15 14 13 12 10 9 7 6 3}
+do_test boundary1-2.56.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 32767 ORDER BY rowid
+  }
+} {50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.56.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 32767 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50}
+do_test boundary1-2.56.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 32767 ORDER BY x
+  }
+} {50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.56.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 32767 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 15 17 18 19 20 22 23 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 50 51 56 57 62}
+do_test boundary1-2.56.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 32767 ORDER BY a DESC
+  }
+} {62 57 56 51 50 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 23 22 20 19 18 17 15 14 13 12 10 9 7 6 3}
+do_test boundary1-2.56.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 32767 ORDER BY rowid
+  }
+} {23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.56.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 32767 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23}
+do_test boundary1-2.56.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 32767 ORDER BY x
+  }
+} {23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.56.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 32767 ORDER BY a
+  }
+} {1 2 4 5 8 11 16 21 29 30 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 61 63 64}
+do_test boundary1-2.56.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 32767 ORDER BY a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 30 29 21 16 11 8 5 4 2 1}
+do_test boundary1-2.56.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 32767 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16}
+do_test boundary1-2.56.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 32767 ORDER BY rowid DESC
+  }
+} {16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.56.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 32767 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.56.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 32767 ORDER BY a
+  }
+} {1 2 4 5 8 11 16 21 23 29 30 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 61 63 64}
+do_test boundary1-2.56.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 32767 ORDER BY a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 30 29 23 21 16 11 8 5 4 2 1}
+do_test boundary1-2.56.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 32767 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23}
+do_test boundary1-2.56.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 32767 ORDER BY rowid DESC
+  }
+} {23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.56.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 32767 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.57.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=127
+  }
+} {4 000000000000007f}
+do_test boundary1-2.57.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='000000000000007f'
+  }
+} {127 4}
+do_test boundary1-2.57.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=4
+  }
+} {127 000000000000007f}
+do_test boundary1-2.57.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 127 ORDER BY a
+  }
+} {3 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 34 35 36 39 40 42 43 45 46 48 49 50 51 56 57 61 62}
+do_test boundary1-2.57.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 127 ORDER BY a DESC
+  }
+} {62 61 57 56 51 50 49 48 46 45 43 42 40 39 36 35 34 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 3}
+do_test boundary1-2.57.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 127 ORDER BY rowid
+  }
+} {49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.57.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 127 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49}
+do_test boundary1-2.57.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 127 ORDER BY x
+  }
+} {49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.57.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 127 ORDER BY a
+  }
+} {3 4 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 34 35 36 39 40 42 43 45 46 48 49 50 51 56 57 61 62}
+do_test boundary1-2.57.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 127 ORDER BY a DESC
+  }
+} {62 61 57 56 51 50 49 48 46 45 43 42 40 39 36 35 34 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 4 3}
+do_test boundary1-2.57.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 127 ORDER BY rowid
+  }
+} {4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.57.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 127 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4}
+do_test boundary1-2.57.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 127 ORDER BY x
+  }
+} {4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.57.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 127 ORDER BY a
+  }
+} {1 2 5 11 21 29 31 32 33 37 38 41 44 47 52 53 54 55 58 59 60 63 64}
+do_test boundary1-2.57.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 127 ORDER BY a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 47 44 41 38 37 33 32 31 29 21 11 5 2 1}
+do_test boundary1-2.57.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 127 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31}
+do_test boundary1-2.57.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 127 ORDER BY rowid DESC
+  }
+} {31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.57.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 127 ORDER BY x
+  }
+} {59 60 41 5 31 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.57.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 127 ORDER BY a
+  }
+} {1 2 4 5 11 21 29 31 32 33 37 38 41 44 47 52 53 54 55 58 59 60 63 64}
+do_test boundary1-2.57.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 127 ORDER BY a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 47 44 41 38 37 33 32 31 29 21 11 5 4 2 1}
+do_test boundary1-2.57.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 127 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4}
+do_test boundary1-2.57.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 127 ORDER BY rowid DESC
+  }
+} {4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.57.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 127 ORDER BY x
+  }
+} {59 60 41 5 31 4 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.58.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=36028797018963967
+  }
+} {27 007fffffffffffff}
+do_test boundary1-2.58.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='007fffffffffffff'
+  }
+} {36028797018963967 27}
+do_test boundary1-2.58.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=27
+  }
+} {36028797018963967 007fffffffffffff}
+do_test boundary1-2.58.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 36028797018963967 ORDER BY a
+  }
+} {3 17 28 45}
+do_test boundary1-2.58.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 36028797018963967 ORDER BY a DESC
+  }
+} {45 28 17 3}
+do_test boundary1-2.58.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 36028797018963967 ORDER BY rowid
+  }
+} {45 17 28 3}
+do_test boundary1-2.58.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 36028797018963967 ORDER BY rowid DESC
+  }
+} {3 28 17 45}
+do_test boundary1-2.58.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 36028797018963967 ORDER BY x
+  }
+} {45 17 28 3}
+do_test boundary1-2.58.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 36028797018963967 ORDER BY a
+  }
+} {3 17 27 28 45}
+do_test boundary1-2.58.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 36028797018963967 ORDER BY a DESC
+  }
+} {45 28 27 17 3}
+do_test boundary1-2.58.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 36028797018963967 ORDER BY rowid
+  }
+} {27 45 17 28 3}
+do_test boundary1-2.58.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 36028797018963967 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27}
+do_test boundary1-2.58.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 36028797018963967 ORDER BY x
+  }
+} {27 45 17 28 3}
+do_test boundary1-2.58.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 36028797018963967 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 18 19 20 21 22 23 24 25 26 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary1-2.58.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 36028797018963967 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 26 25 24 23 22 21 20 19 18 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary1-2.58.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 36028797018963967 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43}
+do_test boundary1-2.58.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 36028797018963967 ORDER BY rowid DESC
+  }
+} {43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.58.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 36028797018963967 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.58.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 36028797018963967 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 18 19 20 21 22 23 24 25 26 27 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary1-2.58.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 36028797018963967 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 27 26 25 24 23 22 21 20 19 18 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary1-2.58.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 36028797018963967 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27}
+do_test boundary1-2.58.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 36028797018963967 ORDER BY rowid DESC
+  }
+} {27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.58.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 36028797018963967 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.59.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=4398046511104
+  }
+} {56 0000040000000000}
+do_test boundary1-2.59.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='0000040000000000'
+  }
+} {4398046511104 56}
+do_test boundary1-2.59.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=56
+  }
+} {4398046511104 0000040000000000}
+do_test boundary1-2.59.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 4398046511104 ORDER BY a
+  }
+} {3 10 13 17 25 26 27 28 34 43 45}
+do_test boundary1-2.59.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 4398046511104 ORDER BY a DESC
+  }
+} {45 43 34 28 27 26 25 17 13 10 3}
+do_test boundary1-2.59.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 4398046511104 ORDER BY rowid
+  }
+} {25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.59.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 4398046511104 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25}
+do_test boundary1-2.59.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 4398046511104 ORDER BY x
+  }
+} {25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.59.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 4398046511104 ORDER BY a
+  }
+} {3 10 13 17 25 26 27 28 34 43 45 56}
+do_test boundary1-2.59.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 4398046511104 ORDER BY a DESC
+  }
+} {56 45 43 34 28 27 26 25 17 13 10 3}
+do_test boundary1-2.59.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 4398046511104 ORDER BY rowid
+  }
+} {56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.59.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 4398046511104 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56}
+do_test boundary1-2.59.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 4398046511104 ORDER BY x
+  }
+} {56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.59.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 4398046511104 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 11 12 14 15 16 18 19 20 21 22 23 24 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 57 58 59 60 61 62 63 64}
+do_test boundary1-2.59.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 4398046511104 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 24 23 22 21 20 19 18 16 15 14 12 11 9 8 7 6 5 4 2 1}
+do_test boundary1-2.59.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 4398046511104 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7}
+do_test boundary1-2.59.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 4398046511104 ORDER BY rowid DESC
+  }
+} {7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.59.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 4398046511104 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.59.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 4398046511104 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 11 12 14 15 16 18 19 20 21 22 23 24 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary1-2.59.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 4398046511104 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 24 23 22 21 20 19 18 16 15 14 12 11 9 8 7 6 5 4 2 1}
+do_test boundary1-2.59.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 4398046511104 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56}
+do_test boundary1-2.59.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 4398046511104 ORDER BY rowid DESC
+  }
+} {56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.59.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 4398046511104 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.60.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=1
+  }
+} {60 0000000000000001}
+do_test boundary1-2.60.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='0000000000000001'
+  }
+} {1 60}
+do_test boundary1-2.60.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=60
+  }
+} {1 0000000000000001}
+do_test boundary1-2.60.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 1 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 39 40 41 42 43 45 46 48 49 50 51 56 57 61 62}
+do_test boundary1-2.60.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 1 ORDER BY a DESC
+  }
+} {62 61 57 56 51 50 49 48 46 45 43 42 41 40 39 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary1-2.60.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 1 ORDER BY rowid
+  }
+} {41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.60.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 1 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41}
+do_test boundary1-2.60.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 1 ORDER BY x
+  }
+} {41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.60.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 1 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 39 40 41 42 43 45 46 48 49 50 51 56 57 60 61 62}
+do_test boundary1-2.60.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 1 ORDER BY a DESC
+  }
+} {62 61 60 57 56 51 50 49 48 46 45 43 42 41 40 39 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary1-2.60.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 1 ORDER BY rowid
+  }
+} {60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.60.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 1 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60}
+do_test boundary1-2.60.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 1 ORDER BY x
+  }
+} {60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.60.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 1 ORDER BY a
+  }
+} {1 2 11 21 29 32 33 37 38 44 47 52 53 54 55 58 59 63 64}
+do_test boundary1-2.60.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 1 ORDER BY a DESC
+  }
+} {64 63 59 58 55 54 53 52 47 44 38 37 33 32 29 21 11 2 1}
+do_test boundary1-2.60.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 1 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59}
+do_test boundary1-2.60.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 1 ORDER BY rowid DESC
+  }
+} {59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.60.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 1 ORDER BY x
+  }
+} {59 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.60.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 1 ORDER BY a
+  }
+} {1 2 11 21 29 32 33 37 38 44 47 52 53 54 55 58 59 60 63 64}
+do_test boundary1-2.60.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 1 ORDER BY a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 47 44 38 37 33 32 29 21 11 2 1}
+do_test boundary1-2.60.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 1 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60}
+do_test boundary1-2.60.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 1 ORDER BY rowid DESC
+  }
+} {60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.60.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 1 ORDER BY x
+  }
+} {59 60 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.61.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=36028797018963968
+  }
+} {45 0080000000000000}
+do_test boundary1-2.61.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='0080000000000000'
+  }
+} {36028797018963968 45}
+do_test boundary1-2.61.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=45
+  }
+} {36028797018963968 0080000000000000}
+do_test boundary1-2.61.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 36028797018963968 ORDER BY a
+  }
+} {3 17 28}
+do_test boundary1-2.61.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 36028797018963968 ORDER BY a DESC
+  }
+} {28 17 3}
+do_test boundary1-2.61.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 36028797018963968 ORDER BY rowid
+  }
+} {17 28 3}
+do_test boundary1-2.61.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 36028797018963968 ORDER BY rowid DESC
+  }
+} {3 28 17}
+do_test boundary1-2.61.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 36028797018963968 ORDER BY x
+  }
+} {17 28 3}
+do_test boundary1-2.61.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 36028797018963968 ORDER BY a
+  }
+} {3 17 28 45}
+do_test boundary1-2.61.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 36028797018963968 ORDER BY a DESC
+  }
+} {45 28 17 3}
+do_test boundary1-2.61.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 36028797018963968 ORDER BY rowid
+  }
+} {45 17 28 3}
+do_test boundary1-2.61.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 36028797018963968 ORDER BY rowid DESC
+  }
+} {3 28 17 45}
+do_test boundary1-2.61.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 36028797018963968 ORDER BY x
+  }
+} {45 17 28 3}
+do_test boundary1-2.61.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 36028797018963968 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 18 19 20 21 22 23 24 25 26 27 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary1-2.61.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 36028797018963968 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 27 26 25 24 23 22 21 20 19 18 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary1-2.61.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 36028797018963968 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27}
+do_test boundary1-2.61.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 36028797018963968 ORDER BY rowid DESC
+  }
+} {27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.61.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 36028797018963968 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.61.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 36028797018963968 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 18 19 20 21 22 23 24 25 26 27 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary1-2.61.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 36028797018963968 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 27 26 25 24 23 22 21 20 19 18 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary1-2.61.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 36028797018963968 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45}
+do_test boundary1-2.61.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 36028797018963968 ORDER BY rowid DESC
+  }
+} {45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.61.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 36028797018963968 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.62.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=-2147483649
+  }
+} {47 ffffffff7fffffff}
+do_test boundary1-2.62.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='ffffffff7fffffff'
+  }
+} {-2147483649 47}
+do_test boundary1-2.62.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=47
+  }
+} {-2147483649 ffffffff7fffffff}
+do_test boundary1-2.62.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -2147483649 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary1-2.62.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -2147483649 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary1-2.62.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -2147483649 ORDER BY rowid
+  }
+} {11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.62.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -2147483649 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11}
+do_test boundary1-2.62.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -2147483649 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.62.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -2147483649 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 47 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary1-2.62.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -2147483649 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 47 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary1-2.62.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -2147483649 ORDER BY rowid
+  }
+} {47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.62.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -2147483649 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47}
+do_test boundary1-2.62.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -2147483649 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.62.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -2147483649 ORDER BY a
+  }
+} {2 21 44 55 58 63 64}
+do_test boundary1-2.62.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -2147483649 ORDER BY a DESC
+  }
+} {64 63 58 55 44 21 2}
+do_test boundary1-2.62.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -2147483649 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63}
+do_test boundary1-2.62.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -2147483649 ORDER BY rowid DESC
+  }
+} {63 58 44 21 64 2 55}
+do_test boundary1-2.62.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -2147483649 ORDER BY x
+  }
+} {55 2 64 21 44 58 63}
+do_test boundary1-2.62.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -2147483649 ORDER BY a
+  }
+} {2 21 44 47 55 58 63 64}
+do_test boundary1-2.62.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -2147483649 ORDER BY a DESC
+  }
+} {64 63 58 55 47 44 21 2}
+do_test boundary1-2.62.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -2147483649 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47}
+do_test boundary1-2.62.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -2147483649 ORDER BY rowid DESC
+  }
+} {47 63 58 44 21 64 2 55}
+do_test boundary1-2.62.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -2147483649 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47}
+do_test boundary1-2.63.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=-36028797018963969
+  }
+} {2 ff7fffffffffffff}
+do_test boundary1-2.63.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='ff7fffffffffffff'
+  }
+} {-36028797018963969 2}
+do_test boundary1-2.63.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=2
+  }
+} {-36028797018963969 ff7fffffffffffff}
+do_test boundary1-2.63.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -36028797018963969 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 56 57 58 59 60 61 62 63 64}
+do_test boundary1-2.63.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -36028797018963969 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary1-2.63.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -36028797018963969 ORDER BY rowid
+  }
+} {64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.63.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -36028797018963969 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64}
+do_test boundary1-2.63.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -36028797018963969 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.63.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -36028797018963969 ORDER BY a
+  }
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 56 57 58 59 60 61 62 63 64}
+do_test boundary1-2.63.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -36028797018963969 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1}
+do_test boundary1-2.63.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -36028797018963969 ORDER BY rowid
+  }
+} {2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.63.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -36028797018963969 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2}
+do_test boundary1-2.63.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -36028797018963969 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.63.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -36028797018963969 ORDER BY a
+  }
+} {55}
+do_test boundary1-2.63.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -36028797018963969 ORDER BY a DESC
+  }
+} {55}
+do_test boundary1-2.63.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -36028797018963969 ORDER BY rowid
+  }
+} {55}
+do_test boundary1-2.63.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -36028797018963969 ORDER BY rowid DESC
+  }
+} {55}
+do_test boundary1-2.63.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -36028797018963969 ORDER BY x
+  }
+} {55}
+do_test boundary1-2.63.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -36028797018963969 ORDER BY a
+  }
+} {2 55}
+do_test boundary1-2.63.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -36028797018963969 ORDER BY a DESC
+  }
+} {55 2}
+do_test boundary1-2.63.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -36028797018963969 ORDER BY rowid
+  }
+} {55 2}
+do_test boundary1-2.63.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -36028797018963969 ORDER BY rowid DESC
+  }
+} {2 55}
+do_test boundary1-2.63.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -36028797018963969 ORDER BY x
+  }
+} {55 2}
+do_test boundary1-2.64.1 {
+  db eval {
+    SELECT * FROM t1 WHERE rowid=3
+  }
+} {5 0000000000000003}
+do_test boundary1-2.64.2 {
+  db eval {
+    SELECT rowid, a FROM t1 WHERE x='0000000000000003'
+  }
+} {3 5}
+do_test boundary1-2.64.3 {
+  db eval {
+    SELECT rowid, x FROM t1 WHERE a=5
+  }
+} {3 0000000000000003}
+do_test boundary1-2.64.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 3 ORDER BY a
+  }
+} {3 4 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 39 40 42 43 45 46 48 49 50 51 56 57 61 62}
+do_test boundary1-2.64.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 3 ORDER BY a DESC
+  }
+} {62 61 57 56 51 50 49 48 46 45 43 42 40 39 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 4 3}
+do_test boundary1-2.64.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 3 ORDER BY rowid
+  }
+} {31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.64.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 3 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31}
+do_test boundary1-2.64.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 3 ORDER BY x
+  }
+} {31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.64.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 3 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 39 40 42 43 45 46 48 49 50 51 56 57 61 62}
+do_test boundary1-2.64.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 3 ORDER BY a DESC
+  }
+} {62 61 57 56 51 50 49 48 46 45 43 42 40 39 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary1-2.64.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 3 ORDER BY rowid
+  }
+} {5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.64.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 3 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5}
+do_test boundary1-2.64.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 3 ORDER BY x
+  }
+} {5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.64.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 3 ORDER BY a
+  }
+} {1 2 11 21 29 32 33 37 38 41 44 47 52 53 54 55 58 59 60 63 64}
+do_test boundary1-2.64.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 3 ORDER BY a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 47 44 41 38 37 33 32 29 21 11 2 1}
+do_test boundary1-2.64.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 3 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41}
+do_test boundary1-2.64.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 3 ORDER BY rowid DESC
+  }
+} {41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.64.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 3 ORDER BY x
+  }
+} {59 60 41 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.64.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 3 ORDER BY a
+  }
+} {1 2 5 11 21 29 32 33 37 38 41 44 47 52 53 54 55 58 59 60 63 64}
+do_test boundary1-2.64.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 3 ORDER BY a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 47 44 41 38 37 33 32 29 21 11 5 2 1}
+do_test boundary1-2.64.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 3 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5}
+do_test boundary1-2.64.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 3 ORDER BY rowid DESC
+  }
+} {5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.64.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 3 ORDER BY x
+  }
+} {59 60 41 5 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.65.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 9.22337303685477580800e+18 ORDER BY a
+  }
+} {}
+do_test boundary1-2.65.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 9.22337303685477580800e+18 ORDER BY a DESC
+  }
+} {}
+do_test boundary1-2.65.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 9.22337303685477580800e+18 ORDER BY rowid
+  }
+} {}
+do_test boundary1-2.65.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 9.22337303685477580800e+18 ORDER BY rowid DESC
+  }
+} {}
+do_test boundary1-2.65.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > 9.22337303685477580800e+18 ORDER BY x
+  }
+} {}
+do_test boundary1-2.65.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 9.22337303685477580800e+18 ORDER BY a
+  }
+} {}
+do_test boundary1-2.65.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 9.22337303685477580800e+18 ORDER BY a DESC
+  }
+} {}
+do_test boundary1-2.65.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 9.22337303685477580800e+18 ORDER BY rowid
+  }
+} {}
+do_test boundary1-2.65.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 9.22337303685477580800e+18 ORDER BY rowid DESC
+  }
+} {}
+do_test boundary1-2.65.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= 9.22337303685477580800e+18 ORDER BY x
+  }
+} {}
+do_test boundary1-2.65.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 9.22337303685477580800e+18 ORDER BY a
+  }
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary1-2.65.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 9.22337303685477580800e+18 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1}
+do_test boundary1-2.65.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 9.22337303685477580800e+18 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.65.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 9.22337303685477580800e+18 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.65.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < 9.22337303685477580800e+18 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.65.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 9.22337303685477580800e+18 ORDER BY a
+  }
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary1-2.65.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 9.22337303685477580800e+18 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1}
+do_test boundary1-2.65.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 9.22337303685477580800e+18 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.65.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 9.22337303685477580800e+18 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.65.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= 9.22337303685477580800e+18 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.66.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -9.22337303685477580800e+18 ORDER BY a
+  }
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary1-2.66.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -9.22337303685477580800e+18 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1}
+do_test boundary1-2.66.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -9.22337303685477580800e+18 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.66.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -9.22337303685477580800e+18 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.66.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid > -9.22337303685477580800e+18 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.66.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -9.22337303685477580800e+18 ORDER BY a
+  }
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary1-2.66.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -9.22337303685477580800e+18 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1}
+do_test boundary1-2.66.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -9.22337303685477580800e+18 ORDER BY rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary1-2.66.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -9.22337303685477580800e+18 ORDER BY rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary1-2.66.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid >= -9.22337303685477580800e+18 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary1-2.66.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -9.22337303685477580800e+18 ORDER BY a
+  }
+} {}
+do_test boundary1-2.66.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -9.22337303685477580800e+18 ORDER BY a DESC
+  }
+} {}
+do_test boundary1-2.66.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -9.22337303685477580800e+18 ORDER BY rowid
+  }
+} {}
+do_test boundary1-2.66.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -9.22337303685477580800e+18 ORDER BY rowid DESC
+  }
+} {}
+do_test boundary1-2.66.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid < -9.22337303685477580800e+18 ORDER BY x
+  }
+} {}
+do_test boundary1-2.66.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -9.22337303685477580800e+18 ORDER BY a
+  }
+} {}
+do_test boundary1-2.66.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -9.22337303685477580800e+18 ORDER BY a DESC
+  }
+} {}
+do_test boundary1-2.66.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -9.22337303685477580800e+18 ORDER BY rowid
+  }
+} {}
+do_test boundary1-2.66.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -9.22337303685477580800e+18 ORDER BY rowid DESC
+  }
+} {}
+do_test boundary1-2.66.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE rowid <= -9.22337303685477580800e+18 ORDER BY x
+  }
+} {}
+finish_test
diff --git a/test/boundary2.tcl b/test/boundary2.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..b141166072d9174f9cc05232724ecc5253c1e64c
--- /dev/null
+++ b/test/boundary2.tcl
@@ -0,0 +1,445 @@
+puts {# 2008 December 11
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file is automatically generated from a separate TCL script.
+# This file seeks to exercise integer boundary values.
+#
+# $Id: boundary2.tcl,v 1.3 2009/01/02 15:45:48 shane Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Many of the boundary tests depend on a working 64-bit implementation.
+if {![working_64bit_int]} { finish_test; return }
+}
+
+expr srand(0)
+
+# Generate interesting boundary numbers
+#
+foreach x {
+  0
+  1
+  0x7f
+  0x7fff
+  0x7fffff
+  0x7fffffff
+  0x7fffffffff
+  0x7fffffffffff
+  0x7fffffffffffff
+  0x7fffffffffffffff
+} {
+  set x [expr {wide($x)}]
+  set boundarynum($x) 1
+  set boundarynum([expr {$x+1}]) 1
+  set boundarynum([expr {-($x+1)}]) 1
+  set boundarynum([expr {-($x+2)}]) 1
+  set boundarynum([expr {$x+$x+1}]) 1
+  set boundarynum([expr {$x+$x+2}]) 1
+}
+set x [expr {wide(127)}]
+for {set i 1} {$i<=9} {incr i} {
+  set boundarynum($x) 1
+  set boundarynum([expr {$x+1}]) 1
+  set x [expr {wide($x*128 + 127)}]
+}
+
+# Scramble the $inlist into a random order.
+#
+proc scramble {inlist} {
+  set y {}
+  foreach x $inlist {
+    lappend y [list [expr {rand()}] $x]
+  }
+  set y [lsort $y]
+  set outlist {}
+  foreach x $y {
+    lappend outlist [lindex $x 1]
+  }
+  return $outlist
+}
+
+# A simple selection sort.  Not trying to be efficient.
+#
+proc sort {inlist} {
+  set outlist {}
+  set mn [lindex $inlist 0]
+  foreach x $inlist {
+    if {$x<$mn} {set mn $x}
+  }
+  set outlist $mn
+  set mx $mn
+  while {1} {
+    set valid 0
+    foreach x $inlist {
+      if {$x>$mx && (!$valid || $mn>$x)} {
+        set mn $x
+        set valid 1
+      }
+    }
+    if {!$valid} break
+    lappend outlist $mn
+    set mx $mn
+  }
+  return $outlist
+}
+
+# Reverse the order of a list
+#
+proc reverse {inlist} {
+  set i [llength $inlist]
+  set outlist {}
+  for {incr i -1} {$i>=0} {incr i -1} {
+    lappend outlist [lindex $inlist $i]
+  }
+  return $outlist
+}
+
+set nums1 [scramble [array names boundarynum]]
+set nums2 [scramble [array names boundarynum]]
+
+set tname boundary2
+puts "do_test $tname-1.1 \173"
+puts "  db eval \173"
+puts "    CREATE TABLE t1(r INTEGER, a INTEGER, x TEXT);"
+set a 0
+foreach r $nums1 {
+  incr a
+  set t1ra($r) $a
+  set t1ar($a) $r
+  set x [format %08x%08x [expr {wide($r)>>32}] $r]
+  set t1rx($r) $x
+  set t1xr($x) $r
+  puts "    INSERT INTO t1 VALUES($r,$a,'$x');"
+}
+puts "    CREATE INDEX t1i1 ON t1(r);"
+puts "    CREATE INDEX t1i2 ON t1(a);"
+puts "    CREATE INDEX t1i3 ON t1(x);"
+puts "  \175"
+puts "\175 {}"
+
+puts "do_test $tname-1.2 \173"
+puts "  db eval \173"
+puts "    SELECT count(*) FROM t1"
+puts "  \175"
+puts "\175 {64}"
+
+set nums3 $nums2
+lappend nums3 9.22337303685477580800e+18
+lappend nums3 -9.22337303685477580800e+18
+
+set i 0
+foreach r $nums3 {
+  incr i
+
+  if {abs($r)<9.22337203685477580800e+18} {
+    set x $t1rx($r)
+    set a $t1ra($r)
+    set r5 $r.5
+    set r0 $r.0
+    puts "do_test $tname-2.$i.1 \173"
+    puts "  db eval \173"
+    puts "    SELECT * FROM t1 WHERE r=$r"
+    puts "  \175"
+    puts "\175 {$r $a $x}"
+    puts "do_test $tname-2.$i.2 \173"
+    puts "  db eval \173"
+    puts "    SELECT r, a FROM t1 WHERE x='$x'"
+    puts "  \175"
+    puts "\175 {$r $a}"
+    puts "do_test $tname-2.$i.3 \173"
+    puts "  db eval \173"
+    puts "    SELECT r, x FROM t1 WHERE a=$a"
+    puts "  \175"
+    puts "\175 {$r $x}"
+  }
+
+  foreach op {> >= < <=} subno {gt ge lt le} {
+
+    ################################################################ 2.x.y.1
+    set rset {}
+    set aset {}
+    foreach rx $nums2 {
+      if "\$rx $op \$r" {
+        lappend rset $rx
+        lappend aset $t1ra($rx)
+      }
+    }
+    puts "do_test $tname-2.$i.$subno.1 \173"
+    puts "  db eval \173"
+    puts "    SELECT a FROM t1 WHERE r $op $r ORDER BY a"
+    puts "  \175"
+    puts "\175 {[sort $aset]}"
+  
+    ################################################################ 2.x.y.2
+    puts "do_test $tname-2.$i.$subno.2 \173"
+    puts "  db eval \173"
+    puts "    SELECT a FROM t1 WHERE r $op $r ORDER BY a DESC"
+    puts "  \175"
+    puts "\175 {[reverse [sort $aset]]}"
+  
+    ################################################################ 2.x.y.3
+    set aset {}
+    foreach rx [sort $rset] {
+      lappend aset $t1ra($rx)
+    }
+    puts "do_test $tname-2.$i.$subno.3 \173"
+    puts "  db eval \173"
+    puts "    SELECT a FROM t1 WHERE r $op $r ORDER BY r"
+    puts "  \175"
+    puts "\175 {$aset}"
+  
+    ################################################################ 2.x.y.4
+    set aset {}
+    foreach rx [reverse [sort $rset]] {
+      lappend aset $t1ra($rx)
+    }
+    puts "do_test $tname-2.$i.$subno.4 \173"
+    puts "  db eval \173"
+    puts "    SELECT a FROM t1 WHERE r $op $r ORDER BY r DESC"
+    puts "  \175"
+    puts "\175 {$aset}"
+  
+    ################################################################ 2.x.y.5
+    set aset {}
+    set xset {}
+    foreach rx $rset {
+      lappend xset $t1rx($rx)
+    }
+    foreach x [sort $xset] {
+      set rx $t1xr($x)
+      lappend aset $t1ra($rx)
+    }
+    puts "do_test $tname-2.$i.$subno.5 \173"
+    puts "  db eval \173"
+    puts "    SELECT a FROM t1 WHERE r $op $r ORDER BY x"
+    puts "  \175"
+    puts "\175 {$aset}"
+  
+    ################################################################ 2.x.y.10
+    if {abs($r)>9223372036854775808 || [string length $r5]>15} continue
+    set rset {}
+    set aset {}
+    foreach rx $nums2 {
+      if "\$rx $op \$r0" {
+        lappend rset $rx
+      }
+    }
+    foreach rx [sort $rset] {
+      lappend aset $t1ra($rx)
+    }
+    puts "do_test $tname-2.$i.$subno.10 \173"
+    puts "  db eval \173"
+    puts "    SELECT a FROM t1 WHERE r $op $r0 ORDER BY r"
+    puts "  \175"
+    puts "\175 {$aset}"
+  
+    ################################################################ 2.x.y.11
+    set aset {}
+    foreach rx [reverse [sort $rset]] {
+      lappend aset $t1ra($rx)
+    }
+    puts "do_test $tname-2.$i.$subno.11 \173"
+    puts "  db eval \173"
+    puts "    SELECT a FROM t1 WHERE r $op $r0 ORDER BY r DESC"
+    puts "  \175"
+    puts "\175 {$aset}"
+
+
+    ################################################################ 2.x.y.12
+    set rset {}
+    set aset {}
+    foreach rx $nums2 {
+      if "\$rx $op \$r5" {
+        lappend rset $rx
+      }
+    }
+    foreach rx [sort $rset] {
+      lappend aset $t1ra($rx)
+    }
+    puts "do_test $tname-2.$i.$subno.12 \173"
+    puts "  db eval \173"
+    puts "    SELECT a FROM t1 WHERE r $op $r5 ORDER BY r"
+    puts "  \175"
+    puts "\175 {$aset}"
+  
+    ################################################################ 2.x.y.13
+    set aset {}
+    foreach rx [reverse [sort $rset]] {
+      lappend aset $t1ra($rx)
+    }
+    puts "do_test $tname-2.$i.$subno.13 \173"
+    puts "  db eval \173"
+    puts "    SELECT a FROM t1 WHERE r $op $r5 ORDER BY r DESC"
+    puts "  \175"
+    puts "\175 {$aset}"
+  }
+}
+
+puts "do_test $tname-3.1 \173"
+puts "  db eval \173"
+puts "    DROP INDEX t1i1;"
+puts "    DROP INDEX t1i2;"
+puts "    DROP INDEX t1i3;"
+puts "  \175"
+puts "\175 {}"
+
+set i 0
+foreach r $nums3 {
+  incr i
+
+  if {abs($r)<9.22337203685477580800e+18} {
+    set x $t1rx($r)
+    set a $t1ra($r)
+    set r5 $r.5
+    set r0 $r.0
+    puts "do_test $tname-4.$i.1 \173"
+    puts "  db eval \173"
+    puts "    SELECT * FROM t1 WHERE r=$r"
+    puts "  \175"
+    puts "\175 {$r $a $x}"
+    puts "do_test $tname-4.$i.2 \173"
+    puts "  db eval \173"
+    puts "    SELECT r, a FROM t1 WHERE x='$x'"
+    puts "  \175"
+    puts "\175 {$r $a}"
+    puts "do_test $tname-4.$i.3 \173"
+    puts "  db eval \173"
+    puts "    SELECT r, x FROM t1 WHERE a=$a"
+    puts "  \175"
+    puts "\175 {$r $x}"
+  }
+
+  foreach op {> >= < <=} subno {gt ge lt le} {
+
+    ################################################################ 2.x.y.1
+    set rset {}
+    set aset {}
+    foreach rx $nums2 {
+      if "\$rx $op \$r" {
+        lappend rset $rx
+        lappend aset $t1ra($rx)
+      }
+    }
+    puts "do_test $tname-4.$i.$subno.1 \173"
+    puts "  db eval \173"
+    puts "    SELECT a FROM t1 WHERE r $op $r ORDER BY a"
+    puts "  \175"
+    puts "\175 {[sort $aset]}"
+  
+    ################################################################ 2.x.y.2
+    puts "do_test $tname-4.$i.$subno.2 \173"
+    puts "  db eval \173"
+    puts "    SELECT a FROM t1 WHERE r $op $r ORDER BY a DESC"
+    puts "  \175"
+    puts "\175 {[reverse [sort $aset]]}"
+  
+    ################################################################ 2.x.y.3
+    set aset {}
+    foreach rx [sort $rset] {
+      lappend aset $t1ra($rx)
+    }
+    puts "do_test $tname-4.$i.$subno.3 \173"
+    puts "  db eval \173"
+    puts "    SELECT a FROM t1 WHERE r $op $r ORDER BY r"
+    puts "  \175"
+    puts "\175 {$aset}"
+  
+    ################################################################ 2.x.y.4
+    set aset {}
+    foreach rx [reverse [sort $rset]] {
+      lappend aset $t1ra($rx)
+    }
+    puts "do_test $tname-4.$i.$subno.4 \173"
+    puts "  db eval \173"
+    puts "    SELECT a FROM t1 WHERE r $op $r ORDER BY r DESC"
+    puts "  \175"
+    puts "\175 {$aset}"
+  
+    ################################################################ 2.x.y.5
+    set aset {}
+    set xset {}
+    foreach rx $rset {
+      lappend xset $t1rx($rx)
+    }
+    foreach x [sort $xset] {
+      set rx $t1xr($x)
+      lappend aset $t1ra($rx)
+    }
+    puts "do_test $tname-4.$i.$subno.5 \173"
+    puts "  db eval \173"
+    puts "    SELECT a FROM t1 WHERE r $op $r ORDER BY x"
+    puts "  \175"
+    puts "\175 {$aset}"
+  
+    ################################################################ 2.x.y.10
+    if {abs($r)>9223372036854775808 || [string length $r5]>15} continue
+    set rset {}
+    set aset {}
+    foreach rx $nums2 {
+      if "\$rx $op \$r0" {
+        lappend rset $rx
+      }
+    }
+    foreach rx [sort $rset] {
+      lappend aset $t1ra($rx)
+    }
+    puts "do_test $tname-4.$i.$subno.10 \173"
+    puts "  db eval \173"
+    puts "    SELECT a FROM t1 WHERE r $op $r0 ORDER BY r"
+    puts "  \175"
+    puts "\175 {$aset}"
+  
+    ################################################################ 2.x.y.11
+    set aset {}
+    foreach rx [reverse [sort $rset]] {
+      lappend aset $t1ra($rx)
+    }
+    puts "do_test $tname-4.$i.$subno.11 \173"
+    puts "  db eval \173"
+    puts "    SELECT a FROM t1 WHERE r $op $r0 ORDER BY r DESC"
+    puts "  \175"
+    puts "\175 {$aset}"
+
+
+    ################################################################ 2.x.y.12
+    set rset {}
+    set aset {}
+    foreach rx $nums2 {
+      if "\$rx $op \$r5" {
+        lappend rset $rx
+      }
+    }
+    foreach rx [sort $rset] {
+      lappend aset $t1ra($rx)
+    }
+    puts "do_test $tname-4.$i.$subno.12 \173"
+    puts "  db eval \173"
+    puts "    SELECT a FROM t1 WHERE r $op $r5 ORDER BY r"
+    puts "  \175"
+    puts "\175 {$aset}"
+  
+    ################################################################ 2.x.y.13
+    set aset {}
+    foreach rx [reverse [sort $rset]] {
+      lappend aset $t1ra($rx)
+    }
+    puts "do_test $tname-4.$i.$subno.13 \173"
+    puts "  db eval \173"
+    puts "    SELECT a FROM t1 WHERE r $op $r5 ORDER BY r DESC"
+    puts "  \175"
+    puts "\175 {$aset}"
+  }
+}
+
+
+puts {finish_test}
diff --git a/test/boundary2.test b/test/boundary2.test
new file mode 100644
index 0000000000000000000000000000000000000000..15a824dc5d60f868e5286bcb046bbfcdf5db906a
--- /dev/null
+++ b/test/boundary2.test
@@ -0,0 +1,15198 @@
+# 2008 December 11
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file is automatically generated from a separate TCL script.
+# This file seeks to exercise integer boundary values.
+#
+# $Id: boundary2.test,v 1.2 2009/01/02 15:45:48 shane Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Many of the boundary tests depend on a working 64-bit implementation.
+if {![working_64bit_int]} { finish_test; return }
+
+do_test boundary2-1.1 {
+  db eval {
+    CREATE TABLE t1(r INTEGER, a INTEGER, x TEXT);
+    INSERT INTO t1 VALUES(-8388609,1,'ffffffffff7fffff');
+    INSERT INTO t1 VALUES(-36028797018963969,2,'ff7fffffffffffff');
+    INSERT INTO t1 VALUES(9223372036854775807,3,'7fffffffffffffff');
+    INSERT INTO t1 VALUES(127,4,'000000000000007f');
+    INSERT INTO t1 VALUES(3,5,'0000000000000003');
+    INSERT INTO t1 VALUES(16777216,6,'0000000001000000');
+    INSERT INTO t1 VALUES(4398046511103,7,'000003ffffffffff');
+    INSERT INTO t1 VALUES(16383,8,'0000000000003fff');
+    INSERT INTO t1 VALUES(16777215,9,'0000000000ffffff');
+    INSERT INTO t1 VALUES(281474976710655,10,'0000ffffffffffff');
+    INSERT INTO t1 VALUES(-2147483648,11,'ffffffff80000000');
+    INSERT INTO t1 VALUES(268435455,12,'000000000fffffff');
+    INSERT INTO t1 VALUES(562949953421311,13,'0001ffffffffffff');
+    INSERT INTO t1 VALUES(4294967295,14,'00000000ffffffff');
+    INSERT INTO t1 VALUES(2097151,15,'00000000001fffff');
+    INSERT INTO t1 VALUES(16384,16,'0000000000004000');
+    INSERT INTO t1 VALUES(72057594037927935,17,'00ffffffffffffff');
+    INSERT INTO t1 VALUES(8388607,18,'00000000007fffff');
+    INSERT INTO t1 VALUES(1099511627776,19,'0000010000000000');
+    INSERT INTO t1 VALUES(2147483647,20,'000000007fffffff');
+    INSERT INTO t1 VALUES(-140737488355329,21,'ffff7fffffffffff');
+    INSERT INTO t1 VALUES(34359738368,22,'0000000800000000');
+    INSERT INTO t1 VALUES(32767,23,'0000000000007fff');
+    INSERT INTO t1 VALUES(8388608,24,'0000000000800000');
+    INSERT INTO t1 VALUES(140737488355327,25,'00007fffffffffff');
+    INSERT INTO t1 VALUES(281474976710656,26,'0001000000000000');
+    INSERT INTO t1 VALUES(36028797018963967,27,'007fffffffffffff');
+    INSERT INTO t1 VALUES(72057594037927936,28,'0100000000000000');
+    INSERT INTO t1 VALUES(-32769,29,'ffffffffffff7fff');
+    INSERT INTO t1 VALUES(255,30,'00000000000000ff');
+    INSERT INTO t1 VALUES(4,31,'0000000000000004');
+    INSERT INTO t1 VALUES(-32768,32,'ffffffffffff8000');
+    INSERT INTO t1 VALUES(-2,33,'fffffffffffffffe');
+    INSERT INTO t1 VALUES(140737488355328,34,'0000800000000000');
+    INSERT INTO t1 VALUES(549755813888,35,'0000008000000000');
+    INSERT INTO t1 VALUES(4294967296,36,'0000000100000000');
+    INSERT INTO t1 VALUES(-8388608,37,'ffffffffff800000');
+    INSERT INTO t1 VALUES(-1,38,'ffffffffffffffff');
+    INSERT INTO t1 VALUES(34359738367,39,'00000007ffffffff');
+    INSERT INTO t1 VALUES(268435456,40,'0000000010000000');
+    INSERT INTO t1 VALUES(2,41,'0000000000000002');
+    INSERT INTO t1 VALUES(2097152,42,'0000000000200000');
+    INSERT INTO t1 VALUES(562949953421312,43,'0002000000000000');
+    INSERT INTO t1 VALUES(-140737488355328,44,'ffff800000000000');
+    INSERT INTO t1 VALUES(36028797018963968,45,'0080000000000000');
+    INSERT INTO t1 VALUES(549755813887,46,'0000007fffffffff');
+    INSERT INTO t1 VALUES(-2147483649,47,'ffffffff7fffffff');
+    INSERT INTO t1 VALUES(65535,48,'000000000000ffff');
+    INSERT INTO t1 VALUES(128,49,'0000000000000080');
+    INSERT INTO t1 VALUES(32768,50,'0000000000008000');
+    INSERT INTO t1 VALUES(2147483648,51,'0000000080000000');
+    INSERT INTO t1 VALUES(-3,52,'fffffffffffffffd');
+    INSERT INTO t1 VALUES(-128,53,'ffffffffffffff80');
+    INSERT INTO t1 VALUES(-129,54,'ffffffffffffff7f');
+    INSERT INTO t1 VALUES(-9223372036854775808,55,'8000000000000000');
+    INSERT INTO t1 VALUES(4398046511104,56,'0000040000000000');
+    INSERT INTO t1 VALUES(1099511627775,57,'000000ffffffffff');
+    INSERT INTO t1 VALUES(-549755813889,58,'ffffff7fffffffff');
+    INSERT INTO t1 VALUES(0,59,'0000000000000000');
+    INSERT INTO t1 VALUES(1,60,'0000000000000001');
+    INSERT INTO t1 VALUES(256,61,'0000000000000100');
+    INSERT INTO t1 VALUES(65536,62,'0000000000010000');
+    INSERT INTO t1 VALUES(-549755813888,63,'ffffff8000000000');
+    INSERT INTO t1 VALUES(-36028797018963968,64,'ff80000000000000');
+    CREATE INDEX t1i1 ON t1(r);
+    CREATE INDEX t1i2 ON t1(a);
+    CREATE INDEX t1i3 ON t1(x);
+  }
+} {}
+do_test boundary2-1.2 {
+  db eval {
+    SELECT count(*) FROM t1
+  }
+} {64}
+do_test boundary2-2.1.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=72057594037927935
+  }
+} {72057594037927935 17 00ffffffffffffff}
+do_test boundary2-2.1.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='00ffffffffffffff'
+  }
+} {72057594037927935 17}
+do_test boundary2-2.1.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=17
+  }
+} {72057594037927935 00ffffffffffffff}
+do_test boundary2-2.1.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 72057594037927935 ORDER BY a
+  }
+} {3 28}
+do_test boundary2-2.1.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 72057594037927935 ORDER BY a DESC
+  }
+} {28 3}
+do_test boundary2-2.1.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 72057594037927935 ORDER BY r
+  }
+} {28 3}
+do_test boundary2-2.1.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 72057594037927935 ORDER BY r DESC
+  }
+} {3 28}
+do_test boundary2-2.1.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 72057594037927935 ORDER BY x
+  }
+} {28 3}
+do_test boundary2-2.1.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 72057594037927935 ORDER BY a
+  }
+} {3 17 28}
+do_test boundary2-2.1.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 72057594037927935 ORDER BY a DESC
+  }
+} {28 17 3}
+do_test boundary2-2.1.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 72057594037927935 ORDER BY r
+  }
+} {17 28 3}
+do_test boundary2-2.1.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 72057594037927935 ORDER BY r DESC
+  }
+} {3 28 17}
+do_test boundary2-2.1.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 72057594037927935 ORDER BY x
+  }
+} {17 28 3}
+do_test boundary2-2.1.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 72057594037927935 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 18 19 20 21 22 23 24 25 26 27 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-2.1.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 72057594037927935 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 27 26 25 24 23 22 21 20 19 18 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary2-2.1.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 72057594037927935 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45}
+do_test boundary2-2.1.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 72057594037927935 ORDER BY r DESC
+  }
+} {45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.1.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 72057594037927935 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.1.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 72057594037927935 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-2.1.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 72057594037927935 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary2-2.1.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 72057594037927935 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17}
+do_test boundary2-2.1.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 72057594037927935 ORDER BY r DESC
+  }
+} {17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.1.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 72057594037927935 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.2.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=16384
+  }
+} {16384 16 0000000000004000}
+do_test boundary2-2.2.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000000000004000'
+  }
+} {16384 16}
+do_test boundary2-2.2.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=16
+  }
+} {16384 0000000000004000}
+do_test boundary2-2.2.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 16384 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 15 17 18 19 20 22 23 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 50 51 56 57 62}
+do_test boundary2-2.2.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 16384 ORDER BY a DESC
+  }
+} {62 57 56 51 50 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 23 22 20 19 18 17 15 14 13 12 10 9 7 6 3}
+do_test boundary2-2.2.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 16384 ORDER BY r
+  }
+} {23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.2.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 16384 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23}
+do_test boundary2-2.2.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 16384 ORDER BY x
+  }
+} {23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.2.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 16384 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 50 51 56 57 62}
+do_test boundary2-2.2.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 16384 ORDER BY a DESC
+  }
+} {62 57 56 51 50 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 7 6 3}
+do_test boundary2-2.2.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 16384 ORDER BY r
+  }
+} {16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.2.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 16384 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16}
+do_test boundary2-2.2.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 16384 ORDER BY x
+  }
+} {16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.2.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 16384 ORDER BY a
+  }
+} {1 2 4 5 8 11 21 29 30 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 61 63 64}
+do_test boundary2-2.2.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 16384 ORDER BY a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 30 29 21 11 8 5 4 2 1}
+do_test boundary2-2.2.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 16384 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8}
+do_test boundary2-2.2.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 16384 ORDER BY r DESC
+  }
+} {8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.2.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 16384 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.2.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 16384 ORDER BY a
+  }
+} {1 2 4 5 8 11 16 21 29 30 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 61 63 64}
+do_test boundary2-2.2.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 16384 ORDER BY a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 30 29 21 16 11 8 5 4 2 1}
+do_test boundary2-2.2.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 16384 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16}
+do_test boundary2-2.2.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 16384 ORDER BY r DESC
+  }
+} {16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.2.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 16384 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.3.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=4294967296
+  }
+} {4294967296 36 0000000100000000}
+do_test boundary2-2.3.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000000100000000'
+  }
+} {4294967296 36}
+do_test boundary2-2.3.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=36
+  }
+} {4294967296 0000000100000000}
+do_test boundary2-2.3.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4294967296 ORDER BY a
+  }
+} {3 7 10 13 17 19 22 25 26 27 28 34 35 39 43 45 46 56 57}
+do_test boundary2-2.3.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4294967296 ORDER BY a DESC
+  }
+} {57 56 46 45 43 39 35 34 28 27 26 25 22 19 17 13 10 7 3}
+do_test boundary2-2.3.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4294967296 ORDER BY r
+  }
+} {39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.3.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4294967296 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39}
+do_test boundary2-2.3.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4294967296 ORDER BY x
+  }
+} {39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.3.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4294967296 ORDER BY a
+  }
+} {3 7 10 13 17 19 22 25 26 27 28 34 35 36 39 43 45 46 56 57}
+do_test boundary2-2.3.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4294967296 ORDER BY a DESC
+  }
+} {57 56 46 45 43 39 36 35 34 28 27 26 25 22 19 17 13 10 7 3}
+do_test boundary2-2.3.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4294967296 ORDER BY r
+  }
+} {36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.3.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4294967296 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36}
+do_test boundary2-2.3.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4294967296 ORDER BY x
+  }
+} {36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.3.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4294967296 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 23 24 29 30 31 32 33 37 38 40 41 42 44 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-2.3.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4294967296 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 44 42 41 40 38 37 33 32 31 30 29 24 23 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary2-2.3.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4294967296 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14}
+do_test boundary2-2.3.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4294967296 ORDER BY r DESC
+  }
+} {14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.3.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4294967296 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.3.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4294967296 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 23 24 29 30 31 32 33 36 37 38 40 41 42 44 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-2.3.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4294967296 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 44 42 41 40 38 37 36 33 32 31 30 29 24 23 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary2-2.3.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4294967296 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36}
+do_test boundary2-2.3.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4294967296 ORDER BY r DESC
+  }
+} {36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.3.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4294967296 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.4.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=16777216
+  }
+} {16777216 6 0000000001000000}
+do_test boundary2-2.4.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000000001000000'
+  }
+} {16777216 6}
+do_test boundary2-2.4.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=6
+  }
+} {16777216 0000000001000000}
+do_test boundary2-2.4.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 16777216 ORDER BY a
+  }
+} {3 7 10 12 13 14 17 19 20 22 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary2-2.4.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 16777216 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 22 20 19 17 14 13 12 10 7 3}
+do_test boundary2-2.4.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 16777216 ORDER BY r
+  }
+} {12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.4.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 16777216 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12}
+do_test boundary2-2.4.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 16777216 ORDER BY x
+  }
+} {12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.4.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 16777216 ORDER BY a
+  }
+} {3 6 7 10 12 13 14 17 19 20 22 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary2-2.4.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 16777216 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 22 20 19 17 14 13 12 10 7 6 3}
+do_test boundary2-2.4.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 16777216 ORDER BY r
+  }
+} {6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.4.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 16777216 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6}
+do_test boundary2-2.4.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 16777216 ORDER BY x
+  }
+} {6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.4.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 16777216 ORDER BY a
+  }
+} {1 2 4 5 8 9 11 15 16 18 21 23 24 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-2.4.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 16777216 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 24 23 21 18 16 15 11 9 8 5 4 2 1}
+do_test boundary2-2.4.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 16777216 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9}
+do_test boundary2-2.4.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 16777216 ORDER BY r DESC
+  }
+} {9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.4.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 16777216 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.4.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 16777216 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 15 16 18 21 23 24 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-2.4.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 16777216 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 24 23 21 18 16 15 11 9 8 6 5 4 2 1}
+do_test boundary2-2.4.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 16777216 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6}
+do_test boundary2-2.4.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 16777216 ORDER BY r DESC
+  }
+} {6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.4.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 16777216 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.5.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=-32769
+  }
+} {-32769 29 ffffffffffff7fff}
+do_test boundary2-2.5.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='ffffffffffff7fff'
+  }
+} {-32769 29}
+do_test boundary2-2.5.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=29
+  }
+} {-32769 ffffffffffff7fff}
+do_test boundary2-2.5.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -32769 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 32 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary2-2.5.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -32769 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 32 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-2.5.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -32769 ORDER BY r
+  }
+} {32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.5.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -32769 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32}
+do_test boundary2-2.5.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -32769 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 32 54 53 52 33 38}
+do_test boundary2-2.5.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -32769 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary2-2.5.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -32769 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-2.5.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -32769 ORDER BY r
+  }
+} {29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.5.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -32769 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29}
+do_test boundary2-2.5.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -32769 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 29 32 54 53 52 33 38}
+do_test boundary2-2.5.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -32769 ORDER BY a
+  }
+} {1 2 11 21 37 44 47 55 58 63 64}
+do_test boundary2-2.5.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -32769 ORDER BY a DESC
+  }
+} {64 63 58 55 47 44 37 21 11 2 1}
+do_test boundary2-2.5.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -32769 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37}
+do_test boundary2-2.5.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -32769 ORDER BY r DESC
+  }
+} {37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.5.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -32769 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37}
+do_test boundary2-2.5.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -32769 ORDER BY a
+  }
+} {1 2 11 21 29 37 44 47 55 58 63 64}
+do_test boundary2-2.5.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -32769 ORDER BY a DESC
+  }
+} {64 63 58 55 47 44 37 29 21 11 2 1}
+do_test boundary2-2.5.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -32769 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29}
+do_test boundary2-2.5.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -32769 ORDER BY r DESC
+  }
+} {29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.5.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -32769 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29}
+do_test boundary2-2.6.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=-140737488355329
+  }
+} {-140737488355329 21 ffff7fffffffffff}
+do_test boundary2-2.6.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='ffff7fffffffffff'
+  }
+} {-140737488355329 21}
+do_test boundary2-2.6.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=21
+  }
+} {-140737488355329 ffff7fffffffffff}
+do_test boundary2-2.6.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -140737488355329 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 56 57 58 59 60 61 62 63}
+do_test boundary2-2.6.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -140737488355329 ORDER BY a DESC
+  }
+} {63 62 61 60 59 58 57 56 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary2-2.6.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -140737488355329 ORDER BY r
+  }
+} {44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.6.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -140737488355329 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44}
+do_test boundary2-2.6.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -140737488355329 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.6.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -140737488355329 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 56 57 58 59 60 61 62 63}
+do_test boundary2-2.6.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -140737488355329 ORDER BY a DESC
+  }
+} {63 62 61 60 59 58 57 56 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary2-2.6.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -140737488355329 ORDER BY r
+  }
+} {21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.6.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -140737488355329 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21}
+do_test boundary2-2.6.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -140737488355329 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.6.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -140737488355329 ORDER BY a
+  }
+} {2 55 64}
+do_test boundary2-2.6.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -140737488355329 ORDER BY a DESC
+  }
+} {64 55 2}
+do_test boundary2-2.6.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -140737488355329 ORDER BY r
+  }
+} {55 2 64}
+do_test boundary2-2.6.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -140737488355329 ORDER BY r DESC
+  }
+} {64 2 55}
+do_test boundary2-2.6.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -140737488355329 ORDER BY x
+  }
+} {55 2 64}
+do_test boundary2-2.6.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -140737488355329 ORDER BY a
+  }
+} {2 21 55 64}
+do_test boundary2-2.6.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -140737488355329 ORDER BY a DESC
+  }
+} {64 55 21 2}
+do_test boundary2-2.6.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -140737488355329 ORDER BY r
+  }
+} {55 2 64 21}
+do_test boundary2-2.6.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -140737488355329 ORDER BY r DESC
+  }
+} {21 64 2 55}
+do_test boundary2-2.6.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -140737488355329 ORDER BY x
+  }
+} {55 2 64 21}
+do_test boundary2-2.7.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=2
+  }
+} {2 41 0000000000000002}
+do_test boundary2-2.7.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000000000000002'
+  }
+} {2 41}
+do_test boundary2-2.7.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=41
+  }
+} {2 0000000000000002}
+do_test boundary2-2.7.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 39 40 42 43 45 46 48 49 50 51 56 57 61 62}
+do_test boundary2-2.7.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2 ORDER BY a DESC
+  }
+} {62 61 57 56 51 50 49 48 46 45 43 42 40 39 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-2.7.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2 ORDER BY r
+  }
+} {5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.7.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5}
+do_test boundary2-2.7.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2 ORDER BY x
+  }
+} {5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.7.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 39 40 41 42 43 45 46 48 49 50 51 56 57 61 62}
+do_test boundary2-2.7.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2 ORDER BY a DESC
+  }
+} {62 61 57 56 51 50 49 48 46 45 43 42 41 40 39 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-2.7.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2 ORDER BY r
+  }
+} {41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.7.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41}
+do_test boundary2-2.7.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2 ORDER BY x
+  }
+} {41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.7.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2 ORDER BY a
+  }
+} {1 2 11 21 29 32 33 37 38 44 47 52 53 54 55 58 59 60 63 64}
+do_test boundary2-2.7.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2 ORDER BY a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 47 44 38 37 33 32 29 21 11 2 1}
+do_test boundary2-2.7.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60}
+do_test boundary2-2.7.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2 ORDER BY r DESC
+  }
+} {60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.7.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2 ORDER BY x
+  }
+} {59 60 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.7.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2 ORDER BY a
+  }
+} {1 2 11 21 29 32 33 37 38 41 44 47 52 53 54 55 58 59 60 63 64}
+do_test boundary2-2.7.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2 ORDER BY a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 47 44 41 38 37 33 32 29 21 11 2 1}
+do_test boundary2-2.7.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41}
+do_test boundary2-2.7.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2 ORDER BY r DESC
+  }
+} {41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.7.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2 ORDER BY x
+  }
+} {59 60 41 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.8.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=4
+  }
+} {4 31 0000000000000004}
+do_test boundary2-2.8.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000000000000004'
+  }
+} {4 31}
+do_test boundary2-2.8.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=31
+  }
+} {4 0000000000000004}
+do_test boundary2-2.8.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4 ORDER BY a
+  }
+} {3 4 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 34 35 36 39 40 42 43 45 46 48 49 50 51 56 57 61 62}
+do_test boundary2-2.8.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4 ORDER BY a DESC
+  }
+} {62 61 57 56 51 50 49 48 46 45 43 42 40 39 36 35 34 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 4 3}
+do_test boundary2-2.8.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4 ORDER BY r
+  }
+} {4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.8.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4}
+do_test boundary2-2.8.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4 ORDER BY x
+  }
+} {4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.8.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4 ORDER BY a
+  }
+} {3 4 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 39 40 42 43 45 46 48 49 50 51 56 57 61 62}
+do_test boundary2-2.8.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4 ORDER BY a DESC
+  }
+} {62 61 57 56 51 50 49 48 46 45 43 42 40 39 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 4 3}
+do_test boundary2-2.8.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4 ORDER BY r
+  }
+} {31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.8.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31}
+do_test boundary2-2.8.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4 ORDER BY x
+  }
+} {31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.8.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4 ORDER BY a
+  }
+} {1 2 5 11 21 29 32 33 37 38 41 44 47 52 53 54 55 58 59 60 63 64}
+do_test boundary2-2.8.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4 ORDER BY a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 47 44 41 38 37 33 32 29 21 11 5 2 1}
+do_test boundary2-2.8.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5}
+do_test boundary2-2.8.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4 ORDER BY r DESC
+  }
+} {5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.8.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4 ORDER BY x
+  }
+} {59 60 41 5 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.8.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4 ORDER BY a
+  }
+} {1 2 5 11 21 29 31 32 33 37 38 41 44 47 52 53 54 55 58 59 60 63 64}
+do_test boundary2-2.8.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4 ORDER BY a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 47 44 41 38 37 33 32 31 29 21 11 5 2 1}
+do_test boundary2-2.8.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31}
+do_test boundary2-2.8.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4 ORDER BY r DESC
+  }
+} {31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.8.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4 ORDER BY x
+  }
+} {59 60 41 5 31 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.9.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=562949953421311
+  }
+} {562949953421311 13 0001ffffffffffff}
+do_test boundary2-2.9.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0001ffffffffffff'
+  }
+} {562949953421311 13}
+do_test boundary2-2.9.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=13
+  }
+} {562949953421311 0001ffffffffffff}
+do_test boundary2-2.9.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 562949953421311 ORDER BY a
+  }
+} {3 17 27 28 43 45}
+do_test boundary2-2.9.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 562949953421311 ORDER BY a DESC
+  }
+} {45 43 28 27 17 3}
+do_test boundary2-2.9.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 562949953421311 ORDER BY r
+  }
+} {43 27 45 17 28 3}
+do_test boundary2-2.9.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 562949953421311 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43}
+do_test boundary2-2.9.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 562949953421311 ORDER BY x
+  }
+} {43 27 45 17 28 3}
+do_test boundary2-2.9.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 562949953421311 ORDER BY a
+  }
+} {3 13 17 27 28 43 45}
+do_test boundary2-2.9.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 562949953421311 ORDER BY a DESC
+  }
+} {45 43 28 27 17 13 3}
+do_test boundary2-2.9.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 562949953421311 ORDER BY r
+  }
+} {13 43 27 45 17 28 3}
+do_test boundary2-2.9.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 562949953421311 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13}
+do_test boundary2-2.9.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 562949953421311 ORDER BY x
+  }
+} {13 43 27 45 17 28 3}
+do_test boundary2-2.9.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 562949953421311 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 14 15 16 18 19 20 21 22 23 24 25 26 29 30 31 32 33 34 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-2.9.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 562949953421311 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 34 33 32 31 30 29 26 25 24 23 22 21 20 19 18 16 15 14 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary2-2.9.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 562949953421311 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26}
+do_test boundary2-2.9.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 562949953421311 ORDER BY r DESC
+  }
+} {26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.9.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 562949953421311 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.9.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 562949953421311 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 18 19 20 21 22 23 24 25 26 29 30 31 32 33 34 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-2.9.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 562949953421311 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 34 33 32 31 30 29 26 25 24 23 22 21 20 19 18 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary2-2.9.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 562949953421311 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13}
+do_test boundary2-2.9.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 562949953421311 ORDER BY r DESC
+  }
+} {13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.9.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 562949953421311 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.10.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=256
+  }
+} {256 61 0000000000000100}
+do_test boundary2-2.10.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000000000000100'
+  }
+} {256 61}
+do_test boundary2-2.10.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=61
+  }
+} {256 0000000000000100}
+do_test boundary2-2.10.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 256 ORDER BY a
+  }
+} {3 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 50 51 56 57 62}
+do_test boundary2-2.10.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 256 ORDER BY a DESC
+  }
+} {62 57 56 51 50 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 3}
+do_test boundary2-2.10.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 256 ORDER BY r
+  }
+} {8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.10.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 256 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8}
+do_test boundary2-2.10.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 256 ORDER BY x
+  }
+} {8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.10.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 256 ORDER BY a
+  }
+} {3 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 50 51 56 57 61 62}
+do_test boundary2-2.10.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 256 ORDER BY a DESC
+  }
+} {62 61 57 56 51 50 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 3}
+do_test boundary2-2.10.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 256 ORDER BY r
+  }
+} {61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.10.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 256 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61}
+do_test boundary2-2.10.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 256 ORDER BY x
+  }
+} {61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.10.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 256 ORDER BY a
+  }
+} {1 2 4 5 11 21 29 30 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 63 64}
+do_test boundary2-2.10.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 256 ORDER BY a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 30 29 21 11 5 4 2 1}
+do_test boundary2-2.10.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 256 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30}
+do_test boundary2-2.10.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 256 ORDER BY r DESC
+  }
+} {30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.10.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 256 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.10.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 256 ORDER BY a
+  }
+} {1 2 4 5 11 21 29 30 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 61 63 64}
+do_test boundary2-2.10.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 256 ORDER BY a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 30 29 21 11 5 4 2 1}
+do_test boundary2-2.10.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 256 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61}
+do_test boundary2-2.10.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 256 ORDER BY r DESC
+  }
+} {61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.10.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 256 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.11.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=34359738368
+  }
+} {34359738368 22 0000000800000000}
+do_test boundary2-2.11.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000000800000000'
+  }
+} {34359738368 22}
+do_test boundary2-2.11.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=22
+  }
+} {34359738368 0000000800000000}
+do_test boundary2-2.11.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 34359738368 ORDER BY a
+  }
+} {3 7 10 13 17 19 25 26 27 28 34 35 43 45 46 56 57}
+do_test boundary2-2.11.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 34359738368 ORDER BY a DESC
+  }
+} {57 56 46 45 43 35 34 28 27 26 25 19 17 13 10 7 3}
+do_test boundary2-2.11.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 34359738368 ORDER BY r
+  }
+} {46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.11.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 34359738368 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46}
+do_test boundary2-2.11.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 34359738368 ORDER BY x
+  }
+} {46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.11.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 34359738368 ORDER BY a
+  }
+} {3 7 10 13 17 19 22 25 26 27 28 34 35 43 45 46 56 57}
+do_test boundary2-2.11.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 34359738368 ORDER BY a DESC
+  }
+} {57 56 46 45 43 35 34 28 27 26 25 22 19 17 13 10 7 3}
+do_test boundary2-2.11.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 34359738368 ORDER BY r
+  }
+} {22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.11.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 34359738368 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22}
+do_test boundary2-2.11.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 34359738368 ORDER BY x
+  }
+} {22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.11.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 34359738368 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 23 24 29 30 31 32 33 36 37 38 39 40 41 42 44 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-2.11.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 34359738368 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 44 42 41 40 39 38 37 36 33 32 31 30 29 24 23 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary2-2.11.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 34359738368 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39}
+do_test boundary2-2.11.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 34359738368 ORDER BY r DESC
+  }
+} {39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.11.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 34359738368 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.11.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 34359738368 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 22 23 24 29 30 31 32 33 36 37 38 39 40 41 42 44 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-2.11.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 34359738368 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 44 42 41 40 39 38 37 36 33 32 31 30 29 24 23 22 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary2-2.11.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 34359738368 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22}
+do_test boundary2-2.11.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 34359738368 ORDER BY r DESC
+  }
+} {22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.11.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 34359738368 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.12.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=65536
+  }
+} {65536 62 0000000000010000}
+do_test boundary2-2.12.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000000000010000'
+  }
+} {65536 62}
+do_test boundary2-2.12.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=62
+  }
+} {65536 0000000000010000}
+do_test boundary2-2.12.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 65536 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 15 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 42 43 45 46 51 56 57}
+do_test boundary2-2.12.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 65536 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 42 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 15 14 13 12 10 9 7 6 3}
+do_test boundary2-2.12.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 65536 ORDER BY r
+  }
+} {15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.12.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 65536 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15}
+do_test boundary2-2.12.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 65536 ORDER BY x
+  }
+} {15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.12.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 65536 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 15 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 42 43 45 46 51 56 57 62}
+do_test boundary2-2.12.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 65536 ORDER BY a DESC
+  }
+} {62 57 56 51 46 45 43 42 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 15 14 13 12 10 9 7 6 3}
+do_test boundary2-2.12.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 65536 ORDER BY r
+  }
+} {62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.12.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 65536 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62}
+do_test boundary2-2.12.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 65536 ORDER BY x
+  }
+} {62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.12.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 65536 ORDER BY a
+  }
+} {1 2 4 5 8 11 16 21 23 29 30 31 32 33 37 38 41 44 47 48 49 50 52 53 54 55 58 59 60 61 63 64}
+do_test boundary2-2.12.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 65536 ORDER BY a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 50 49 48 47 44 41 38 37 33 32 31 30 29 23 21 16 11 8 5 4 2 1}
+do_test boundary2-2.12.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 65536 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48}
+do_test boundary2-2.12.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 65536 ORDER BY r DESC
+  }
+} {48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.12.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 65536 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.12.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 65536 ORDER BY a
+  }
+} {1 2 4 5 8 11 16 21 23 29 30 31 32 33 37 38 41 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-2.12.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 65536 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 41 38 37 33 32 31 30 29 23 21 16 11 8 5 4 2 1}
+do_test boundary2-2.12.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 65536 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62}
+do_test boundary2-2.12.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 65536 ORDER BY r DESC
+  }
+} {62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.12.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 65536 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.13.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=268435456
+  }
+} {268435456 40 0000000010000000}
+do_test boundary2-2.13.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000000010000000'
+  }
+} {268435456 40}
+do_test boundary2-2.13.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=40
+  }
+} {268435456 0000000010000000}
+do_test boundary2-2.13.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 268435456 ORDER BY a
+  }
+} {3 7 10 13 14 17 19 20 22 25 26 27 28 34 35 36 39 43 45 46 51 56 57}
+do_test boundary2-2.13.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 268435456 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 39 36 35 34 28 27 26 25 22 20 19 17 14 13 10 7 3}
+do_test boundary2-2.13.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 268435456 ORDER BY r
+  }
+} {20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.13.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 268435456 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20}
+do_test boundary2-2.13.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 268435456 ORDER BY x
+  }
+} {20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.13.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 268435456 ORDER BY a
+  }
+} {3 7 10 13 14 17 19 20 22 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary2-2.13.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 268435456 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 22 20 19 17 14 13 10 7 3}
+do_test boundary2-2.13.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 268435456 ORDER BY r
+  }
+} {40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.13.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 268435456 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40}
+do_test boundary2-2.13.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 268435456 ORDER BY x
+  }
+} {40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.13.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 268435456 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 15 16 18 21 23 24 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-2.13.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 268435456 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 24 23 21 18 16 15 12 11 9 8 6 5 4 2 1}
+do_test boundary2-2.13.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 268435456 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12}
+do_test boundary2-2.13.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 268435456 ORDER BY r DESC
+  }
+} {12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.13.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 268435456 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.13.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 268435456 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 15 16 18 21 23 24 29 30 31 32 33 37 38 40 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-2.13.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 268435456 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 40 38 37 33 32 31 30 29 24 23 21 18 16 15 12 11 9 8 6 5 4 2 1}
+do_test boundary2-2.13.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 268435456 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40}
+do_test boundary2-2.13.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 268435456 ORDER BY r DESC
+  }
+} {40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.13.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 268435456 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.14.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=-140737488355328
+  }
+} {-140737488355328 44 ffff800000000000}
+do_test boundary2-2.14.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='ffff800000000000'
+  }
+} {-140737488355328 44}
+do_test boundary2-2.14.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=44
+  }
+} {-140737488355328 ffff800000000000}
+do_test boundary2-2.14.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -140737488355328 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 47 48 49 50 51 52 53 54 56 57 58 59 60 61 62 63}
+do_test boundary2-2.14.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -140737488355328 ORDER BY a DESC
+  }
+} {63 62 61 60 59 58 57 56 54 53 52 51 50 49 48 47 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary2-2.14.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -140737488355328 ORDER BY r
+  }
+} {58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.14.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -140737488355328 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58}
+do_test boundary2-2.14.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -140737488355328 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.14.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -140737488355328 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 56 57 58 59 60 61 62 63}
+do_test boundary2-2.14.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -140737488355328 ORDER BY a DESC
+  }
+} {63 62 61 60 59 58 57 56 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary2-2.14.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -140737488355328 ORDER BY r
+  }
+} {44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.14.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -140737488355328 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44}
+do_test boundary2-2.14.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -140737488355328 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.14.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -140737488355328 ORDER BY a
+  }
+} {2 21 55 64}
+do_test boundary2-2.14.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -140737488355328 ORDER BY a DESC
+  }
+} {64 55 21 2}
+do_test boundary2-2.14.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -140737488355328 ORDER BY r
+  }
+} {55 2 64 21}
+do_test boundary2-2.14.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -140737488355328 ORDER BY r DESC
+  }
+} {21 64 2 55}
+do_test boundary2-2.14.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -140737488355328 ORDER BY x
+  }
+} {55 2 64 21}
+do_test boundary2-2.14.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -140737488355328 ORDER BY a
+  }
+} {2 21 44 55 64}
+do_test boundary2-2.14.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -140737488355328 ORDER BY a DESC
+  }
+} {64 55 44 21 2}
+do_test boundary2-2.14.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -140737488355328 ORDER BY r
+  }
+} {55 2 64 21 44}
+do_test boundary2-2.14.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -140737488355328 ORDER BY r DESC
+  }
+} {44 21 64 2 55}
+do_test boundary2-2.14.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -140737488355328 ORDER BY x
+  }
+} {55 2 64 21 44}
+do_test boundary2-2.15.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=1099511627776
+  }
+} {1099511627776 19 0000010000000000}
+do_test boundary2-2.15.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000010000000000'
+  }
+} {1099511627776 19}
+do_test boundary2-2.15.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=19
+  }
+} {1099511627776 0000010000000000}
+do_test boundary2-2.15.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 1099511627776 ORDER BY a
+  }
+} {3 7 10 13 17 25 26 27 28 34 43 45 56}
+do_test boundary2-2.15.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 1099511627776 ORDER BY a DESC
+  }
+} {56 45 43 34 28 27 26 25 17 13 10 7 3}
+do_test boundary2-2.15.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 1099511627776 ORDER BY r
+  }
+} {7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.15.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 1099511627776 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7}
+do_test boundary2-2.15.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 1099511627776 ORDER BY x
+  }
+} {7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.15.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 1099511627776 ORDER BY a
+  }
+} {3 7 10 13 17 19 25 26 27 28 34 43 45 56}
+do_test boundary2-2.15.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 1099511627776 ORDER BY a DESC
+  }
+} {56 45 43 34 28 27 26 25 19 17 13 10 7 3}
+do_test boundary2-2.15.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 1099511627776 ORDER BY r
+  }
+} {19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.15.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 1099511627776 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19}
+do_test boundary2-2.15.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 1099511627776 ORDER BY x
+  }
+} {19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.15.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 1099511627776 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 22 23 24 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 57 58 59 60 61 62 63 64}
+do_test boundary2-2.15.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 1099511627776 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 24 23 22 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary2-2.15.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 1099511627776 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57}
+do_test boundary2-2.15.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 1099511627776 ORDER BY r DESC
+  }
+} {57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.15.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 1099511627776 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.15.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 1099511627776 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 19 20 21 22 23 24 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 57 58 59 60 61 62 63 64}
+do_test boundary2-2.15.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 1099511627776 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 24 23 22 21 20 19 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary2-2.15.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 1099511627776 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19}
+do_test boundary2-2.15.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 1099511627776 ORDER BY r DESC
+  }
+} {19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.15.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 1099511627776 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.16.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 9223372036854775807 ORDER BY a
+  }
+} {}
+do_test boundary2-2.16.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 9223372036854775807 ORDER BY a DESC
+  }
+} {}
+do_test boundary2-2.16.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 9223372036854775807 ORDER BY r
+  }
+} {}
+do_test boundary2-2.16.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 9223372036854775807 ORDER BY r DESC
+  }
+} {}
+do_test boundary2-2.16.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 9223372036854775807 ORDER BY x
+  }
+} {}
+do_test boundary2-2.16.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 9223372036854775807 ORDER BY a
+  }
+} {3}
+do_test boundary2-2.16.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 9223372036854775807 ORDER BY a DESC
+  }
+} {3}
+do_test boundary2-2.16.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 9223372036854775807 ORDER BY r
+  }
+} {3}
+do_test boundary2-2.16.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 9223372036854775807 ORDER BY r DESC
+  }
+} {3}
+do_test boundary2-2.16.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 9223372036854775807 ORDER BY x
+  }
+} {3}
+do_test boundary2-2.16.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 9223372036854775807 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-2.16.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 9223372036854775807 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary2-2.16.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 9223372036854775807 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28}
+do_test boundary2-2.16.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 9223372036854775807 ORDER BY r DESC
+  }
+} {28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.16.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 9223372036854775807 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.16.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 9223372036854775807 ORDER BY a
+  }
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-2.16.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 9223372036854775807 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1}
+do_test boundary2-2.16.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 9223372036854775807 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.16.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 9223372036854775807 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.16.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 9223372036854775807 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.17.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=32768
+  }
+} {32768 50 0000000000008000}
+do_test boundary2-2.17.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000000000008000'
+  }
+} {32768 50}
+do_test boundary2-2.17.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=50
+  }
+} {32768 0000000000008000}
+do_test boundary2-2.17.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 32768 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 15 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 51 56 57 62}
+do_test boundary2-2.17.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 32768 ORDER BY a DESC
+  }
+} {62 57 56 51 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 15 14 13 12 10 9 7 6 3}
+do_test boundary2-2.17.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 32768 ORDER BY r
+  }
+} {48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.17.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 32768 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48}
+do_test boundary2-2.17.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 32768 ORDER BY x
+  }
+} {48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.17.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 32768 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 15 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 50 51 56 57 62}
+do_test boundary2-2.17.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 32768 ORDER BY a DESC
+  }
+} {62 57 56 51 50 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 15 14 13 12 10 9 7 6 3}
+do_test boundary2-2.17.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 32768 ORDER BY r
+  }
+} {50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.17.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 32768 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50}
+do_test boundary2-2.17.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 32768 ORDER BY x
+  }
+} {50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.17.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 32768 ORDER BY a
+  }
+} {1 2 4 5 8 11 16 21 23 29 30 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 61 63 64}
+do_test boundary2-2.17.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 32768 ORDER BY a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 30 29 23 21 16 11 8 5 4 2 1}
+do_test boundary2-2.17.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 32768 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23}
+do_test boundary2-2.17.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 32768 ORDER BY r DESC
+  }
+} {23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.17.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 32768 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.17.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 32768 ORDER BY a
+  }
+} {1 2 4 5 8 11 16 21 23 29 30 31 32 33 37 38 41 44 47 49 50 52 53 54 55 58 59 60 61 63 64}
+do_test boundary2-2.17.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 32768 ORDER BY a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 50 49 47 44 41 38 37 33 32 31 30 29 23 21 16 11 8 5 4 2 1}
+do_test boundary2-2.17.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 32768 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50}
+do_test boundary2-2.17.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 32768 ORDER BY r DESC
+  }
+} {50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.17.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 32768 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.18.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=-36028797018963968
+  }
+} {-36028797018963968 64 ff80000000000000}
+do_test boundary2-2.18.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='ff80000000000000'
+  }
+} {-36028797018963968 64}
+do_test boundary2-2.18.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=64
+  }
+} {-36028797018963968 ff80000000000000}
+do_test boundary2-2.18.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -36028797018963968 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 56 57 58 59 60 61 62 63}
+do_test boundary2-2.18.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -36028797018963968 ORDER BY a DESC
+  }
+} {63 62 61 60 59 58 57 56 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary2-2.18.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -36028797018963968 ORDER BY r
+  }
+} {21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.18.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -36028797018963968 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21}
+do_test boundary2-2.18.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -36028797018963968 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.18.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -36028797018963968 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 56 57 58 59 60 61 62 63 64}
+do_test boundary2-2.18.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -36028797018963968 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary2-2.18.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -36028797018963968 ORDER BY r
+  }
+} {64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.18.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -36028797018963968 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64}
+do_test boundary2-2.18.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -36028797018963968 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.18.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -36028797018963968 ORDER BY a
+  }
+} {2 55}
+do_test boundary2-2.18.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -36028797018963968 ORDER BY a DESC
+  }
+} {55 2}
+do_test boundary2-2.18.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -36028797018963968 ORDER BY r
+  }
+} {55 2}
+do_test boundary2-2.18.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -36028797018963968 ORDER BY r DESC
+  }
+} {2 55}
+do_test boundary2-2.18.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -36028797018963968 ORDER BY x
+  }
+} {55 2}
+do_test boundary2-2.18.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -36028797018963968 ORDER BY a
+  }
+} {2 55 64}
+do_test boundary2-2.18.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -36028797018963968 ORDER BY a DESC
+  }
+} {64 55 2}
+do_test boundary2-2.18.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -36028797018963968 ORDER BY r
+  }
+} {55 2 64}
+do_test boundary2-2.18.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -36028797018963968 ORDER BY r DESC
+  }
+} {64 2 55}
+do_test boundary2-2.18.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -36028797018963968 ORDER BY x
+  }
+} {55 2 64}
+do_test boundary2-2.19.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=65535
+  }
+} {65535 48 000000000000ffff}
+do_test boundary2-2.19.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='000000000000ffff'
+  }
+} {65535 48}
+do_test boundary2-2.19.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=48
+  }
+} {65535 000000000000ffff}
+do_test boundary2-2.19.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 65535 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 15 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 42 43 45 46 51 56 57 62}
+do_test boundary2-2.19.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 65535 ORDER BY a DESC
+  }
+} {62 57 56 51 46 45 43 42 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 15 14 13 12 10 9 7 6 3}
+do_test boundary2-2.19.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 65535 ORDER BY r
+  }
+} {62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.19.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 65535 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62}
+do_test boundary2-2.19.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 65535 ORDER BY x
+  }
+} {62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.19.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 65535 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 15 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 51 56 57 62}
+do_test boundary2-2.19.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 65535 ORDER BY a DESC
+  }
+} {62 57 56 51 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 15 14 13 12 10 9 7 6 3}
+do_test boundary2-2.19.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 65535 ORDER BY r
+  }
+} {48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.19.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 65535 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48}
+do_test boundary2-2.19.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 65535 ORDER BY x
+  }
+} {48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.19.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 65535 ORDER BY a
+  }
+} {1 2 4 5 8 11 16 21 23 29 30 31 32 33 37 38 41 44 47 49 50 52 53 54 55 58 59 60 61 63 64}
+do_test boundary2-2.19.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 65535 ORDER BY a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 50 49 47 44 41 38 37 33 32 31 30 29 23 21 16 11 8 5 4 2 1}
+do_test boundary2-2.19.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 65535 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50}
+do_test boundary2-2.19.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 65535 ORDER BY r DESC
+  }
+} {50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.19.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 65535 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.19.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 65535 ORDER BY a
+  }
+} {1 2 4 5 8 11 16 21 23 29 30 31 32 33 37 38 41 44 47 48 49 50 52 53 54 55 58 59 60 61 63 64}
+do_test boundary2-2.19.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 65535 ORDER BY a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 50 49 48 47 44 41 38 37 33 32 31 30 29 23 21 16 11 8 5 4 2 1}
+do_test boundary2-2.19.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 65535 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48}
+do_test boundary2-2.19.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 65535 ORDER BY r DESC
+  }
+} {48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.19.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 65535 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.20.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=4294967295
+  }
+} {4294967295 14 00000000ffffffff}
+do_test boundary2-2.20.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='00000000ffffffff'
+  }
+} {4294967295 14}
+do_test boundary2-2.20.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=14
+  }
+} {4294967295 00000000ffffffff}
+do_test boundary2-2.20.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4294967295 ORDER BY a
+  }
+} {3 7 10 13 17 19 22 25 26 27 28 34 35 36 39 43 45 46 56 57}
+do_test boundary2-2.20.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4294967295 ORDER BY a DESC
+  }
+} {57 56 46 45 43 39 36 35 34 28 27 26 25 22 19 17 13 10 7 3}
+do_test boundary2-2.20.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4294967295 ORDER BY r
+  }
+} {36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.20.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4294967295 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36}
+do_test boundary2-2.20.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4294967295 ORDER BY x
+  }
+} {36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.20.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4294967295 ORDER BY a
+  }
+} {3 7 10 13 14 17 19 22 25 26 27 28 34 35 36 39 43 45 46 56 57}
+do_test boundary2-2.20.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4294967295 ORDER BY a DESC
+  }
+} {57 56 46 45 43 39 36 35 34 28 27 26 25 22 19 17 14 13 10 7 3}
+do_test boundary2-2.20.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4294967295 ORDER BY r
+  }
+} {14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.20.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4294967295 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14}
+do_test boundary2-2.20.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4294967295 ORDER BY x
+  }
+} {14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.20.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4294967295 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 15 16 18 20 21 23 24 29 30 31 32 33 37 38 40 41 42 44 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-2.20.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4294967295 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 44 42 41 40 38 37 33 32 31 30 29 24 23 21 20 18 16 15 12 11 9 8 6 5 4 2 1}
+do_test boundary2-2.20.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4294967295 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51}
+do_test boundary2-2.20.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4294967295 ORDER BY r DESC
+  }
+} {51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.20.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4294967295 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.20.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4294967295 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 23 24 29 30 31 32 33 37 38 40 41 42 44 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-2.20.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4294967295 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 44 42 41 40 38 37 33 32 31 30 29 24 23 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary2-2.20.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4294967295 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14}
+do_test boundary2-2.20.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4294967295 ORDER BY r DESC
+  }
+} {14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.20.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4294967295 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.21.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=1099511627775
+  }
+} {1099511627775 57 000000ffffffffff}
+do_test boundary2-2.21.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='000000ffffffffff'
+  }
+} {1099511627775 57}
+do_test boundary2-2.21.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=57
+  }
+} {1099511627775 000000ffffffffff}
+do_test boundary2-2.21.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 1099511627775 ORDER BY a
+  }
+} {3 7 10 13 17 19 25 26 27 28 34 43 45 56}
+do_test boundary2-2.21.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 1099511627775 ORDER BY a DESC
+  }
+} {56 45 43 34 28 27 26 25 19 17 13 10 7 3}
+do_test boundary2-2.21.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 1099511627775 ORDER BY r
+  }
+} {19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.21.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 1099511627775 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19}
+do_test boundary2-2.21.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 1099511627775 ORDER BY x
+  }
+} {19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.21.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 1099511627775 ORDER BY a
+  }
+} {3 7 10 13 17 19 25 26 27 28 34 43 45 56 57}
+do_test boundary2-2.21.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 1099511627775 ORDER BY a DESC
+  }
+} {57 56 45 43 34 28 27 26 25 19 17 13 10 7 3}
+do_test boundary2-2.21.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 1099511627775 ORDER BY r
+  }
+} {57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.21.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 1099511627775 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57}
+do_test boundary2-2.21.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 1099511627775 ORDER BY x
+  }
+} {57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.21.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 1099511627775 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 22 23 24 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-2.21.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 1099511627775 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 24 23 22 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary2-2.21.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 1099511627775 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35}
+do_test boundary2-2.21.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 1099511627775 ORDER BY r DESC
+  }
+} {35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.21.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 1099511627775 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.21.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 1099511627775 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 22 23 24 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 57 58 59 60 61 62 63 64}
+do_test boundary2-2.21.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 1099511627775 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 24 23 22 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary2-2.21.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 1099511627775 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57}
+do_test boundary2-2.21.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 1099511627775 ORDER BY r DESC
+  }
+} {57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.21.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 1099511627775 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.22.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=-8388608
+  }
+} {-8388608 37 ffffffffff800000}
+do_test boundary2-2.22.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='ffffffffff800000'
+  }
+} {-8388608 37}
+do_test boundary2-2.22.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=37
+  }
+} {-8388608 ffffffffff800000}
+do_test boundary2-2.22.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -8388608 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary2-2.22.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -8388608 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-2.22.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -8388608 ORDER BY r
+  }
+} {29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.22.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -8388608 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29}
+do_test boundary2-2.22.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -8388608 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 29 32 54 53 52 33 38}
+do_test boundary2-2.22.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -8388608 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary2-2.22.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -8388608 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-2.22.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -8388608 ORDER BY r
+  }
+} {37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.22.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -8388608 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37}
+do_test boundary2-2.22.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -8388608 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 37 29 32 54 53 52 33 38}
+do_test boundary2-2.22.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -8388608 ORDER BY a
+  }
+} {1 2 11 21 44 47 55 58 63 64}
+do_test boundary2-2.22.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -8388608 ORDER BY a DESC
+  }
+} {64 63 58 55 47 44 21 11 2 1}
+do_test boundary2-2.22.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -8388608 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1}
+do_test boundary2-2.22.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -8388608 ORDER BY r DESC
+  }
+} {1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.22.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -8388608 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1}
+do_test boundary2-2.22.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -8388608 ORDER BY a
+  }
+} {1 2 11 21 37 44 47 55 58 63 64}
+do_test boundary2-2.22.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -8388608 ORDER BY a DESC
+  }
+} {64 63 58 55 47 44 37 21 11 2 1}
+do_test boundary2-2.22.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -8388608 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37}
+do_test boundary2-2.22.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -8388608 ORDER BY r DESC
+  }
+} {37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.22.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -8388608 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37}
+do_test boundary2-2.23.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=549755813888
+  }
+} {549755813888 35 0000008000000000}
+do_test boundary2-2.23.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000008000000000'
+  }
+} {549755813888 35}
+do_test boundary2-2.23.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=35
+  }
+} {549755813888 0000008000000000}
+do_test boundary2-2.23.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 549755813888 ORDER BY a
+  }
+} {3 7 10 13 17 19 25 26 27 28 34 43 45 56 57}
+do_test boundary2-2.23.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 549755813888 ORDER BY a DESC
+  }
+} {57 56 45 43 34 28 27 26 25 19 17 13 10 7 3}
+do_test boundary2-2.23.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 549755813888 ORDER BY r
+  }
+} {57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.23.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 549755813888 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57}
+do_test boundary2-2.23.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 549755813888 ORDER BY x
+  }
+} {57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.23.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 549755813888 ORDER BY a
+  }
+} {3 7 10 13 17 19 25 26 27 28 34 35 43 45 56 57}
+do_test boundary2-2.23.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 549755813888 ORDER BY a DESC
+  }
+} {57 56 45 43 35 34 28 27 26 25 19 17 13 10 7 3}
+do_test boundary2-2.23.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 549755813888 ORDER BY r
+  }
+} {35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.23.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 549755813888 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35}
+do_test boundary2-2.23.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 549755813888 ORDER BY x
+  }
+} {35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.23.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 549755813888 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 22 23 24 29 30 31 32 33 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-2.23.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 549755813888 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 33 32 31 30 29 24 23 22 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary2-2.23.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 549755813888 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46}
+do_test boundary2-2.23.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 549755813888 ORDER BY r DESC
+  }
+} {46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.23.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 549755813888 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.23.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 549755813888 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 22 23 24 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-2.23.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 549755813888 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 24 23 22 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary2-2.23.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 549755813888 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35}
+do_test boundary2-2.23.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 549755813888 ORDER BY r DESC
+  }
+} {35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.23.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 549755813888 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.24.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=8388607
+  }
+} {8388607 18 00000000007fffff}
+do_test boundary2-2.24.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='00000000007fffff'
+  }
+} {8388607 18}
+do_test boundary2-2.24.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=18
+  }
+} {8388607 00000000007fffff}
+do_test boundary2-2.24.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 8388607 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 17 19 20 22 24 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary2-2.24.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 8388607 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 24 22 20 19 17 14 13 12 10 9 7 6 3}
+do_test boundary2-2.24.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 8388607 ORDER BY r
+  }
+} {24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.24.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 8388607 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24}
+do_test boundary2-2.24.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 8388607 ORDER BY x
+  }
+} {24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.24.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 8388607 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary2-2.24.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 8388607 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 14 13 12 10 9 7 6 3}
+do_test boundary2-2.24.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 8388607 ORDER BY r
+  }
+} {18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.24.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 8388607 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18}
+do_test boundary2-2.24.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 8388607 ORDER BY x
+  }
+} {18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.24.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 8388607 ORDER BY a
+  }
+} {1 2 4 5 8 11 15 16 21 23 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-2.24.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 8388607 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 23 21 16 15 11 8 5 4 2 1}
+do_test boundary2-2.24.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 8388607 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42}
+do_test boundary2-2.24.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 8388607 ORDER BY r DESC
+  }
+} {42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.24.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 8388607 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.24.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 8388607 ORDER BY a
+  }
+} {1 2 4 5 8 11 15 16 18 21 23 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-2.24.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 8388607 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 23 21 18 16 15 11 8 5 4 2 1}
+do_test boundary2-2.24.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 8388607 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18}
+do_test boundary2-2.24.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 8388607 ORDER BY r DESC
+  }
+} {18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.24.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 8388607 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.25.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=-3
+  }
+} {-3 52 fffffffffffffffd}
+do_test boundary2-2.25.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='fffffffffffffffd'
+  }
+} {-3 52}
+do_test boundary2-2.25.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=52
+  }
+} {-3 fffffffffffffffd}
+do_test boundary2-2.25.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -3 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 56 57 59 60 61 62}
+do_test boundary2-2.25.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -3 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-2.25.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -3 ORDER BY r
+  }
+} {33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.25.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -3 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33}
+do_test boundary2-2.25.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -3 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 33 38}
+do_test boundary2-2.25.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -3 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 52 56 57 59 60 61 62}
+do_test boundary2-2.25.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -3 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 52 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-2.25.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -3 ORDER BY r
+  }
+} {52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.25.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -3 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52}
+do_test boundary2-2.25.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -3 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 52 33 38}
+do_test boundary2-2.25.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -3 ORDER BY a
+  }
+} {1 2 11 21 29 32 37 44 47 53 54 55 58 63 64}
+do_test boundary2-2.25.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -3 ORDER BY a DESC
+  }
+} {64 63 58 55 54 53 47 44 37 32 29 21 11 2 1}
+do_test boundary2-2.25.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -3 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53}
+do_test boundary2-2.25.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -3 ORDER BY r DESC
+  }
+} {53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.25.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -3 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53}
+do_test boundary2-2.25.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -3 ORDER BY a
+  }
+} {1 2 11 21 29 32 37 44 47 52 53 54 55 58 63 64}
+do_test boundary2-2.25.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -3 ORDER BY a DESC
+  }
+} {64 63 58 55 54 53 52 47 44 37 32 29 21 11 2 1}
+do_test boundary2-2.25.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -3 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52}
+do_test boundary2-2.25.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -3 ORDER BY r DESC
+  }
+} {52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.25.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -3 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52}
+do_test boundary2-2.26.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=0
+  }
+} {0 59 0000000000000000}
+do_test boundary2-2.26.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000000000000000'
+  }
+} {0 59}
+do_test boundary2-2.26.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=59
+  }
+} {0 0000000000000000}
+do_test boundary2-2.26.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 0 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 39 40 41 42 43 45 46 48 49 50 51 56 57 60 61 62}
+do_test boundary2-2.26.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 0 ORDER BY a DESC
+  }
+} {62 61 60 57 56 51 50 49 48 46 45 43 42 41 40 39 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-2.26.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 0 ORDER BY r
+  }
+} {60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.26.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 0 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60}
+do_test boundary2-2.26.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 0 ORDER BY x
+  }
+} {60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.26.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 0 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 39 40 41 42 43 45 46 48 49 50 51 56 57 59 60 61 62}
+do_test boundary2-2.26.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 0 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 51 50 49 48 46 45 43 42 41 40 39 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-2.26.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 0 ORDER BY r
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.26.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 0 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59}
+do_test boundary2-2.26.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 0 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.26.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 0 ORDER BY a
+  }
+} {1 2 11 21 29 32 33 37 38 44 47 52 53 54 55 58 63 64}
+do_test boundary2-2.26.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 0 ORDER BY a DESC
+  }
+} {64 63 58 55 54 53 52 47 44 38 37 33 32 29 21 11 2 1}
+do_test boundary2-2.26.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 0 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.26.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 0 ORDER BY r DESC
+  }
+} {38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.26.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 0 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.26.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 0 ORDER BY a
+  }
+} {1 2 11 21 29 32 33 37 38 44 47 52 53 54 55 58 59 63 64}
+do_test boundary2-2.26.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 0 ORDER BY a DESC
+  }
+} {64 63 59 58 55 54 53 52 47 44 38 37 33 32 29 21 11 2 1}
+do_test boundary2-2.26.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 0 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59}
+do_test boundary2-2.26.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 0 ORDER BY r DESC
+  }
+} {59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.26.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 0 ORDER BY x
+  }
+} {59 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.27.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=-1
+  }
+} {-1 38 ffffffffffffffff}
+do_test boundary2-2.27.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='ffffffffffffffff'
+  }
+} {-1 38}
+do_test boundary2-2.27.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=38
+  }
+} {-1 ffffffffffffffff}
+do_test boundary2-2.27.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -1 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 39 40 41 42 43 45 46 48 49 50 51 56 57 59 60 61 62}
+do_test boundary2-2.27.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -1 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 51 50 49 48 46 45 43 42 41 40 39 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-2.27.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -1 ORDER BY r
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.27.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -1 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59}
+do_test boundary2-2.27.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -1 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.27.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -1 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 56 57 59 60 61 62}
+do_test boundary2-2.27.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -1 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-2.27.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -1 ORDER BY r
+  }
+} {38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.27.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -1 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38}
+do_test boundary2-2.27.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -1 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 38}
+do_test boundary2-2.27.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -1 ORDER BY a
+  }
+} {1 2 11 21 29 32 33 37 44 47 52 53 54 55 58 63 64}
+do_test boundary2-2.27.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -1 ORDER BY a DESC
+  }
+} {64 63 58 55 54 53 52 47 44 37 33 32 29 21 11 2 1}
+do_test boundary2-2.27.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -1 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33}
+do_test boundary2-2.27.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -1 ORDER BY r DESC
+  }
+} {33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.27.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -1 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33}
+do_test boundary2-2.27.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -1 ORDER BY a
+  }
+} {1 2 11 21 29 32 33 37 38 44 47 52 53 54 55 58 63 64}
+do_test boundary2-2.27.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -1 ORDER BY a DESC
+  }
+} {64 63 58 55 54 53 52 47 44 38 37 33 32 29 21 11 2 1}
+do_test boundary2-2.27.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -1 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.27.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -1 ORDER BY r DESC
+  }
+} {38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.27.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -1 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.28.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=-2
+  }
+} {-2 33 fffffffffffffffe}
+do_test boundary2-2.28.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='fffffffffffffffe'
+  }
+} {-2 33}
+do_test boundary2-2.28.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=33
+  }
+} {-2 fffffffffffffffe}
+do_test boundary2-2.28.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -2 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 56 57 59 60 61 62}
+do_test boundary2-2.28.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -2 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-2.28.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -2 ORDER BY r
+  }
+} {38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.28.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -2 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38}
+do_test boundary2-2.28.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -2 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 38}
+do_test boundary2-2.28.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -2 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 56 57 59 60 61 62}
+do_test boundary2-2.28.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -2 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-2.28.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -2 ORDER BY r
+  }
+} {33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.28.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -2 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33}
+do_test boundary2-2.28.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -2 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 33 38}
+do_test boundary2-2.28.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -2 ORDER BY a
+  }
+} {1 2 11 21 29 32 37 44 47 52 53 54 55 58 63 64}
+do_test boundary2-2.28.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -2 ORDER BY a DESC
+  }
+} {64 63 58 55 54 53 52 47 44 37 32 29 21 11 2 1}
+do_test boundary2-2.28.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -2 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52}
+do_test boundary2-2.28.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -2 ORDER BY r DESC
+  }
+} {52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.28.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -2 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52}
+do_test boundary2-2.28.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -2 ORDER BY a
+  }
+} {1 2 11 21 29 32 33 37 44 47 52 53 54 55 58 63 64}
+do_test boundary2-2.28.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -2 ORDER BY a DESC
+  }
+} {64 63 58 55 54 53 52 47 44 37 33 32 29 21 11 2 1}
+do_test boundary2-2.28.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -2 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33}
+do_test boundary2-2.28.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -2 ORDER BY r DESC
+  }
+} {33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.28.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -2 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33}
+do_test boundary2-2.29.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=2097152
+  }
+} {2097152 42 0000000000200000}
+do_test boundary2-2.29.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000000000200000'
+  }
+} {2097152 42}
+do_test boundary2-2.29.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=42
+  }
+} {2097152 0000000000200000}
+do_test boundary2-2.29.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2097152 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary2-2.29.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2097152 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 14 13 12 10 9 7 6 3}
+do_test boundary2-2.29.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2097152 ORDER BY r
+  }
+} {18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.29.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2097152 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18}
+do_test boundary2-2.29.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2097152 ORDER BY x
+  }
+} {18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.29.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2097152 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 42 43 45 46 51 56 57}
+do_test boundary2-2.29.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2097152 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 42 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 14 13 12 10 9 7 6 3}
+do_test boundary2-2.29.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2097152 ORDER BY r
+  }
+} {42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.29.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2097152 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42}
+do_test boundary2-2.29.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2097152 ORDER BY x
+  }
+} {42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.29.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2097152 ORDER BY a
+  }
+} {1 2 4 5 8 11 15 16 21 23 29 30 31 32 33 37 38 41 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-2.29.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2097152 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 41 38 37 33 32 31 30 29 23 21 16 15 11 8 5 4 2 1}
+do_test boundary2-2.29.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2097152 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15}
+do_test boundary2-2.29.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2097152 ORDER BY r DESC
+  }
+} {15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.29.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2097152 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.29.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2097152 ORDER BY a
+  }
+} {1 2 4 5 8 11 15 16 21 23 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-2.29.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2097152 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 23 21 16 15 11 8 5 4 2 1}
+do_test boundary2-2.29.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2097152 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42}
+do_test boundary2-2.29.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2097152 ORDER BY r DESC
+  }
+} {42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.29.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2097152 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.30.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=128
+  }
+} {128 49 0000000000000080}
+do_test boundary2-2.30.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000000000000080'
+  }
+} {128 49}
+do_test boundary2-2.30.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=49
+  }
+} {128 0000000000000080}
+do_test boundary2-2.30.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 128 ORDER BY a
+  }
+} {3 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 34 35 36 39 40 42 43 45 46 48 50 51 56 57 61 62}
+do_test boundary2-2.30.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 128 ORDER BY a DESC
+  }
+} {62 61 57 56 51 50 48 46 45 43 42 40 39 36 35 34 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 3}
+do_test boundary2-2.30.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 128 ORDER BY r
+  }
+} {30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.30.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 128 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30}
+do_test boundary2-2.30.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 128 ORDER BY x
+  }
+} {30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.30.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 128 ORDER BY a
+  }
+} {3 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 34 35 36 39 40 42 43 45 46 48 49 50 51 56 57 61 62}
+do_test boundary2-2.30.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 128 ORDER BY a DESC
+  }
+} {62 61 57 56 51 50 49 48 46 45 43 42 40 39 36 35 34 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 3}
+do_test boundary2-2.30.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 128 ORDER BY r
+  }
+} {49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.30.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 128 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49}
+do_test boundary2-2.30.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 128 ORDER BY x
+  }
+} {49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.30.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 128 ORDER BY a
+  }
+} {1 2 4 5 11 21 29 31 32 33 37 38 41 44 47 52 53 54 55 58 59 60 63 64}
+do_test boundary2-2.30.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 128 ORDER BY a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 47 44 41 38 37 33 32 31 29 21 11 5 4 2 1}
+do_test boundary2-2.30.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 128 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4}
+do_test boundary2-2.30.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 128 ORDER BY r DESC
+  }
+} {4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.30.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 128 ORDER BY x
+  }
+} {59 60 41 5 31 4 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.30.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 128 ORDER BY a
+  }
+} {1 2 4 5 11 21 29 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 63 64}
+do_test boundary2-2.30.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 128 ORDER BY a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 29 21 11 5 4 2 1}
+do_test boundary2-2.30.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 128 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49}
+do_test boundary2-2.30.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 128 ORDER BY r DESC
+  }
+} {49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.30.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 128 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.31.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=255
+  }
+} {255 30 00000000000000ff}
+do_test boundary2-2.31.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='00000000000000ff'
+  }
+} {255 30}
+do_test boundary2-2.31.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=30
+  }
+} {255 00000000000000ff}
+do_test boundary2-2.31.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 255 ORDER BY a
+  }
+} {3 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 50 51 56 57 61 62}
+do_test boundary2-2.31.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 255 ORDER BY a DESC
+  }
+} {62 61 57 56 51 50 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 3}
+do_test boundary2-2.31.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 255 ORDER BY r
+  }
+} {61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.31.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 255 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61}
+do_test boundary2-2.31.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 255 ORDER BY x
+  }
+} {61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.31.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 255 ORDER BY a
+  }
+} {3 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 34 35 36 39 40 42 43 45 46 48 50 51 56 57 61 62}
+do_test boundary2-2.31.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 255 ORDER BY a DESC
+  }
+} {62 61 57 56 51 50 48 46 45 43 42 40 39 36 35 34 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 3}
+do_test boundary2-2.31.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 255 ORDER BY r
+  }
+} {30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.31.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 255 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30}
+do_test boundary2-2.31.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 255 ORDER BY x
+  }
+} {30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.31.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 255 ORDER BY a
+  }
+} {1 2 4 5 11 21 29 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 63 64}
+do_test boundary2-2.31.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 255 ORDER BY a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 29 21 11 5 4 2 1}
+do_test boundary2-2.31.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 255 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49}
+do_test boundary2-2.31.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 255 ORDER BY r DESC
+  }
+} {49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.31.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 255 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.31.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 255 ORDER BY a
+  }
+} {1 2 4 5 11 21 29 30 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 63 64}
+do_test boundary2-2.31.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 255 ORDER BY a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 30 29 21 11 5 4 2 1}
+do_test boundary2-2.31.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 255 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30}
+do_test boundary2-2.31.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 255 ORDER BY r DESC
+  }
+} {30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.31.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 255 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.32.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=-2147483648
+  }
+} {-2147483648 11 ffffffff80000000}
+do_test boundary2-2.32.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='ffffffff80000000'
+  }
+} {-2147483648 11}
+do_test boundary2-2.32.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=11
+  }
+} {-2147483648 ffffffff80000000}
+do_test boundary2-2.32.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -2147483648 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary2-2.32.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -2147483648 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3 1}
+do_test boundary2-2.32.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -2147483648 ORDER BY r
+  }
+} {1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.32.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -2147483648 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1}
+do_test boundary2-2.32.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -2147483648 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.32.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -2147483648 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary2-2.32.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -2147483648 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary2-2.32.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -2147483648 ORDER BY r
+  }
+} {11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.32.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -2147483648 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11}
+do_test boundary2-2.32.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -2147483648 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.32.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -2147483648 ORDER BY a
+  }
+} {2 21 44 47 55 58 63 64}
+do_test boundary2-2.32.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -2147483648 ORDER BY a DESC
+  }
+} {64 63 58 55 47 44 21 2}
+do_test boundary2-2.32.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -2147483648 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47}
+do_test boundary2-2.32.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -2147483648 ORDER BY r DESC
+  }
+} {47 63 58 44 21 64 2 55}
+do_test boundary2-2.32.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -2147483648 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47}
+do_test boundary2-2.32.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -2147483648 ORDER BY a
+  }
+} {2 11 21 44 47 55 58 63 64}
+do_test boundary2-2.32.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -2147483648 ORDER BY a DESC
+  }
+} {64 63 58 55 47 44 21 11 2}
+do_test boundary2-2.32.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -2147483648 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11}
+do_test boundary2-2.32.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -2147483648 ORDER BY r DESC
+  }
+} {11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.32.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -2147483648 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11}
+do_test boundary2-2.33.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=34359738367
+  }
+} {34359738367 39 00000007ffffffff}
+do_test boundary2-2.33.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='00000007ffffffff'
+  }
+} {34359738367 39}
+do_test boundary2-2.33.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=39
+  }
+} {34359738367 00000007ffffffff}
+do_test boundary2-2.33.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 34359738367 ORDER BY a
+  }
+} {3 7 10 13 17 19 22 25 26 27 28 34 35 43 45 46 56 57}
+do_test boundary2-2.33.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 34359738367 ORDER BY a DESC
+  }
+} {57 56 46 45 43 35 34 28 27 26 25 22 19 17 13 10 7 3}
+do_test boundary2-2.33.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 34359738367 ORDER BY r
+  }
+} {22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.33.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 34359738367 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22}
+do_test boundary2-2.33.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 34359738367 ORDER BY x
+  }
+} {22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.33.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 34359738367 ORDER BY a
+  }
+} {3 7 10 13 17 19 22 25 26 27 28 34 35 39 43 45 46 56 57}
+do_test boundary2-2.33.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 34359738367 ORDER BY a DESC
+  }
+} {57 56 46 45 43 39 35 34 28 27 26 25 22 19 17 13 10 7 3}
+do_test boundary2-2.33.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 34359738367 ORDER BY r
+  }
+} {39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.33.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 34359738367 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39}
+do_test boundary2-2.33.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 34359738367 ORDER BY x
+  }
+} {39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.33.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 34359738367 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 23 24 29 30 31 32 33 36 37 38 40 41 42 44 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-2.33.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 34359738367 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 44 42 41 40 38 37 36 33 32 31 30 29 24 23 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary2-2.33.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 34359738367 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36}
+do_test boundary2-2.33.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 34359738367 ORDER BY r DESC
+  }
+} {36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.33.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 34359738367 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.33.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 34359738367 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 23 24 29 30 31 32 33 36 37 38 39 40 41 42 44 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-2.33.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 34359738367 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 44 42 41 40 39 38 37 36 33 32 31 30 29 24 23 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary2-2.33.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 34359738367 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39}
+do_test boundary2-2.33.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 34359738367 ORDER BY r DESC
+  }
+} {39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.33.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 34359738367 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.34.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=-549755813889
+  }
+} {-549755813889 58 ffffff7fffffffff}
+do_test boundary2-2.34.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='ffffff7fffffffff'
+  }
+} {-549755813889 58}
+do_test boundary2-2.34.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=58
+  }
+} {-549755813889 ffffff7fffffffff}
+do_test boundary2-2.34.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -549755813889 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 47 48 49 50 51 52 53 54 56 57 59 60 61 62 63}
+do_test boundary2-2.34.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -549755813889 ORDER BY a DESC
+  }
+} {63 62 61 60 59 57 56 54 53 52 51 50 49 48 47 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary2-2.34.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -549755813889 ORDER BY r
+  }
+} {63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.34.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -549755813889 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63}
+do_test boundary2-2.34.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -549755813889 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.34.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -549755813889 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 47 48 49 50 51 52 53 54 56 57 58 59 60 61 62 63}
+do_test boundary2-2.34.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -549755813889 ORDER BY a DESC
+  }
+} {63 62 61 60 59 58 57 56 54 53 52 51 50 49 48 47 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary2-2.34.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -549755813889 ORDER BY r
+  }
+} {58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.34.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -549755813889 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58}
+do_test boundary2-2.34.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -549755813889 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.34.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -549755813889 ORDER BY a
+  }
+} {2 21 44 55 64}
+do_test boundary2-2.34.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -549755813889 ORDER BY a DESC
+  }
+} {64 55 44 21 2}
+do_test boundary2-2.34.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -549755813889 ORDER BY r
+  }
+} {55 2 64 21 44}
+do_test boundary2-2.34.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -549755813889 ORDER BY r DESC
+  }
+} {44 21 64 2 55}
+do_test boundary2-2.34.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -549755813889 ORDER BY x
+  }
+} {55 2 64 21 44}
+do_test boundary2-2.34.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -549755813889 ORDER BY a
+  }
+} {2 21 44 55 58 64}
+do_test boundary2-2.34.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -549755813889 ORDER BY a DESC
+  }
+} {64 58 55 44 21 2}
+do_test boundary2-2.34.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -549755813889 ORDER BY r
+  }
+} {55 2 64 21 44 58}
+do_test boundary2-2.34.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -549755813889 ORDER BY r DESC
+  }
+} {58 44 21 64 2 55}
+do_test boundary2-2.34.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -549755813889 ORDER BY x
+  }
+} {55 2 64 21 44 58}
+do_test boundary2-2.35.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=-32768
+  }
+} {-32768 32 ffffffffffff8000}
+do_test boundary2-2.35.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='ffffffffffff8000'
+  }
+} {-32768 32}
+do_test boundary2-2.35.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=32
+  }
+} {-32768 ffffffffffff8000}
+do_test boundary2-2.35.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -32768 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary2-2.35.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -32768 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-2.35.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -32768 ORDER BY r
+  }
+} {54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.35.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -32768 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54}
+do_test boundary2-2.35.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -32768 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 54 53 52 33 38}
+do_test boundary2-2.35.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -32768 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 32 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary2-2.35.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -32768 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 32 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-2.35.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -32768 ORDER BY r
+  }
+} {32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.35.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -32768 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32}
+do_test boundary2-2.35.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -32768 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 32 54 53 52 33 38}
+do_test boundary2-2.35.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -32768 ORDER BY a
+  }
+} {1 2 11 21 29 37 44 47 55 58 63 64}
+do_test boundary2-2.35.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -32768 ORDER BY a DESC
+  }
+} {64 63 58 55 47 44 37 29 21 11 2 1}
+do_test boundary2-2.35.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -32768 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29}
+do_test boundary2-2.35.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -32768 ORDER BY r DESC
+  }
+} {29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.35.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -32768 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29}
+do_test boundary2-2.35.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -32768 ORDER BY a
+  }
+} {1 2 11 21 29 32 37 44 47 55 58 63 64}
+do_test boundary2-2.35.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -32768 ORDER BY a DESC
+  }
+} {64 63 58 55 47 44 37 32 29 21 11 2 1}
+do_test boundary2-2.35.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -32768 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32}
+do_test boundary2-2.35.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -32768 ORDER BY r DESC
+  }
+} {32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.35.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -32768 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32}
+do_test boundary2-2.36.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=2147483647
+  }
+} {2147483647 20 000000007fffffff}
+do_test boundary2-2.36.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='000000007fffffff'
+  }
+} {2147483647 20}
+do_test boundary2-2.36.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=20
+  }
+} {2147483647 000000007fffffff}
+do_test boundary2-2.36.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2147483647 ORDER BY a
+  }
+} {3 7 10 13 14 17 19 22 25 26 27 28 34 35 36 39 43 45 46 51 56 57}
+do_test boundary2-2.36.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2147483647 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 39 36 35 34 28 27 26 25 22 19 17 14 13 10 7 3}
+do_test boundary2-2.36.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2147483647 ORDER BY r
+  }
+} {51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.36.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2147483647 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51}
+do_test boundary2-2.36.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2147483647 ORDER BY x
+  }
+} {51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.36.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2147483647 ORDER BY a
+  }
+} {3 7 10 13 14 17 19 20 22 25 26 27 28 34 35 36 39 43 45 46 51 56 57}
+do_test boundary2-2.36.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2147483647 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 39 36 35 34 28 27 26 25 22 20 19 17 14 13 10 7 3}
+do_test boundary2-2.36.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2147483647 ORDER BY r
+  }
+} {20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.36.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2147483647 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20}
+do_test boundary2-2.36.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2147483647 ORDER BY x
+  }
+} {20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.36.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2147483647 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 15 16 18 21 23 24 29 30 31 32 33 37 38 40 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-2.36.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2147483647 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 40 38 37 33 32 31 30 29 24 23 21 18 16 15 12 11 9 8 6 5 4 2 1}
+do_test boundary2-2.36.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2147483647 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40}
+do_test boundary2-2.36.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2147483647 ORDER BY r DESC
+  }
+} {40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.36.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2147483647 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.36.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2147483647 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 15 16 18 20 21 23 24 29 30 31 32 33 37 38 40 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-2.36.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2147483647 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 40 38 37 33 32 31 30 29 24 23 21 20 18 16 15 12 11 9 8 6 5 4 2 1}
+do_test boundary2-2.36.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2147483647 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20}
+do_test boundary2-2.36.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2147483647 ORDER BY r DESC
+  }
+} {20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.36.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2147483647 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.37.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=-129
+  }
+} {-129 54 ffffffffffffff7f}
+do_test boundary2-2.37.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='ffffffffffffff7f'
+  }
+} {-129 54}
+do_test boundary2-2.37.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=54
+  }
+} {-129 ffffffffffffff7f}
+do_test boundary2-2.37.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -129 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 52 53 56 57 59 60 61 62}
+do_test boundary2-2.37.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -129 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 53 52 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-2.37.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -129 ORDER BY r
+  }
+} {53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.37.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -129 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53}
+do_test boundary2-2.37.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -129 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 53 52 33 38}
+do_test boundary2-2.37.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -129 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary2-2.37.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -129 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-2.37.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -129 ORDER BY r
+  }
+} {54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.37.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -129 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54}
+do_test boundary2-2.37.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -129 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 54 53 52 33 38}
+do_test boundary2-2.37.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -129 ORDER BY a
+  }
+} {1 2 11 21 29 32 37 44 47 55 58 63 64}
+do_test boundary2-2.37.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -129 ORDER BY a DESC
+  }
+} {64 63 58 55 47 44 37 32 29 21 11 2 1}
+do_test boundary2-2.37.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -129 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32}
+do_test boundary2-2.37.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -129 ORDER BY r DESC
+  }
+} {32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.37.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -129 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32}
+do_test boundary2-2.37.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -129 ORDER BY a
+  }
+} {1 2 11 21 29 32 37 44 47 54 55 58 63 64}
+do_test boundary2-2.37.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -129 ORDER BY a DESC
+  }
+} {64 63 58 55 54 47 44 37 32 29 21 11 2 1}
+do_test boundary2-2.37.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -129 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54}
+do_test boundary2-2.37.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -129 ORDER BY r DESC
+  }
+} {54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.37.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -129 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54}
+do_test boundary2-2.38.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=-128
+  }
+} {-128 53 ffffffffffffff80}
+do_test boundary2-2.38.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='ffffffffffffff80'
+  }
+} {-128 53}
+do_test boundary2-2.38.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=53
+  }
+} {-128 ffffffffffffff80}
+do_test boundary2-2.38.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -128 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 52 56 57 59 60 61 62}
+do_test boundary2-2.38.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -128 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 52 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-2.38.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -128 ORDER BY r
+  }
+} {52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.38.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -128 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52}
+do_test boundary2-2.38.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -128 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 52 33 38}
+do_test boundary2-2.38.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -128 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 52 53 56 57 59 60 61 62}
+do_test boundary2-2.38.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -128 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 53 52 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-2.38.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -128 ORDER BY r
+  }
+} {53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.38.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -128 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53}
+do_test boundary2-2.38.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -128 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 53 52 33 38}
+do_test boundary2-2.38.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -128 ORDER BY a
+  }
+} {1 2 11 21 29 32 37 44 47 54 55 58 63 64}
+do_test boundary2-2.38.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -128 ORDER BY a DESC
+  }
+} {64 63 58 55 54 47 44 37 32 29 21 11 2 1}
+do_test boundary2-2.38.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -128 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54}
+do_test boundary2-2.38.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -128 ORDER BY r DESC
+  }
+} {54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.38.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -128 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54}
+do_test boundary2-2.38.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -128 ORDER BY a
+  }
+} {1 2 11 21 29 32 37 44 47 53 54 55 58 63 64}
+do_test boundary2-2.38.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -128 ORDER BY a DESC
+  }
+} {64 63 58 55 54 53 47 44 37 32 29 21 11 2 1}
+do_test boundary2-2.38.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -128 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53}
+do_test boundary2-2.38.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -128 ORDER BY r DESC
+  }
+} {53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.38.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -128 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53}
+do_test boundary2-2.39.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=72057594037927936
+  }
+} {72057594037927936 28 0100000000000000}
+do_test boundary2-2.39.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0100000000000000'
+  }
+} {72057594037927936 28}
+do_test boundary2-2.39.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=28
+  }
+} {72057594037927936 0100000000000000}
+do_test boundary2-2.39.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 72057594037927936 ORDER BY a
+  }
+} {3}
+do_test boundary2-2.39.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 72057594037927936 ORDER BY a DESC
+  }
+} {3}
+do_test boundary2-2.39.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 72057594037927936 ORDER BY r
+  }
+} {3}
+do_test boundary2-2.39.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 72057594037927936 ORDER BY r DESC
+  }
+} {3}
+do_test boundary2-2.39.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 72057594037927936 ORDER BY x
+  }
+} {3}
+do_test boundary2-2.39.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 72057594037927936 ORDER BY a
+  }
+} {3 28}
+do_test boundary2-2.39.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 72057594037927936 ORDER BY a DESC
+  }
+} {28 3}
+do_test boundary2-2.39.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 72057594037927936 ORDER BY r
+  }
+} {28 3}
+do_test boundary2-2.39.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 72057594037927936 ORDER BY r DESC
+  }
+} {3 28}
+do_test boundary2-2.39.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 72057594037927936 ORDER BY x
+  }
+} {28 3}
+do_test boundary2-2.39.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 72057594037927936 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-2.39.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 72057594037927936 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary2-2.39.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 72057594037927936 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17}
+do_test boundary2-2.39.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 72057594037927936 ORDER BY r DESC
+  }
+} {17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.39.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 72057594037927936 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.39.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 72057594037927936 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-2.39.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 72057594037927936 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary2-2.39.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 72057594037927936 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28}
+do_test boundary2-2.39.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 72057594037927936 ORDER BY r DESC
+  }
+} {28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.39.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 72057594037927936 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.40.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=2147483648
+  }
+} {2147483648 51 0000000080000000}
+do_test boundary2-2.40.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000000080000000'
+  }
+} {2147483648 51}
+do_test boundary2-2.40.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=51
+  }
+} {2147483648 0000000080000000}
+do_test boundary2-2.40.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2147483648 ORDER BY a
+  }
+} {3 7 10 13 14 17 19 22 25 26 27 28 34 35 36 39 43 45 46 56 57}
+do_test boundary2-2.40.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2147483648 ORDER BY a DESC
+  }
+} {57 56 46 45 43 39 36 35 34 28 27 26 25 22 19 17 14 13 10 7 3}
+do_test boundary2-2.40.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2147483648 ORDER BY r
+  }
+} {14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.40.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2147483648 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14}
+do_test boundary2-2.40.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2147483648 ORDER BY x
+  }
+} {14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.40.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2147483648 ORDER BY a
+  }
+} {3 7 10 13 14 17 19 22 25 26 27 28 34 35 36 39 43 45 46 51 56 57}
+do_test boundary2-2.40.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2147483648 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 39 36 35 34 28 27 26 25 22 19 17 14 13 10 7 3}
+do_test boundary2-2.40.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2147483648 ORDER BY r
+  }
+} {51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.40.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2147483648 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51}
+do_test boundary2-2.40.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2147483648 ORDER BY x
+  }
+} {51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.40.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2147483648 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 15 16 18 20 21 23 24 29 30 31 32 33 37 38 40 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-2.40.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2147483648 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 40 38 37 33 32 31 30 29 24 23 21 20 18 16 15 12 11 9 8 6 5 4 2 1}
+do_test boundary2-2.40.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2147483648 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20}
+do_test boundary2-2.40.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2147483648 ORDER BY r DESC
+  }
+} {20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.40.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2147483648 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.40.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2147483648 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 15 16 18 20 21 23 24 29 30 31 32 33 37 38 40 41 42 44 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-2.40.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2147483648 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 44 42 41 40 38 37 33 32 31 30 29 24 23 21 20 18 16 15 12 11 9 8 6 5 4 2 1}
+do_test boundary2-2.40.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2147483648 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51}
+do_test boundary2-2.40.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2147483648 ORDER BY r DESC
+  }
+} {51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.40.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2147483648 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.41.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=549755813887
+  }
+} {549755813887 46 0000007fffffffff}
+do_test boundary2-2.41.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000007fffffffff'
+  }
+} {549755813887 46}
+do_test boundary2-2.41.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=46
+  }
+} {549755813887 0000007fffffffff}
+do_test boundary2-2.41.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 549755813887 ORDER BY a
+  }
+} {3 7 10 13 17 19 25 26 27 28 34 35 43 45 56 57}
+do_test boundary2-2.41.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 549755813887 ORDER BY a DESC
+  }
+} {57 56 45 43 35 34 28 27 26 25 19 17 13 10 7 3}
+do_test boundary2-2.41.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 549755813887 ORDER BY r
+  }
+} {35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.41.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 549755813887 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35}
+do_test boundary2-2.41.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 549755813887 ORDER BY x
+  }
+} {35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.41.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 549755813887 ORDER BY a
+  }
+} {3 7 10 13 17 19 25 26 27 28 34 35 43 45 46 56 57}
+do_test boundary2-2.41.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 549755813887 ORDER BY a DESC
+  }
+} {57 56 46 45 43 35 34 28 27 26 25 19 17 13 10 7 3}
+do_test boundary2-2.41.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 549755813887 ORDER BY r
+  }
+} {46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.41.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 549755813887 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46}
+do_test boundary2-2.41.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 549755813887 ORDER BY x
+  }
+} {46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.41.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 549755813887 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 22 23 24 29 30 31 32 33 36 37 38 39 40 41 42 44 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-2.41.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 549755813887 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 44 42 41 40 39 38 37 36 33 32 31 30 29 24 23 22 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary2-2.41.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 549755813887 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22}
+do_test boundary2-2.41.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 549755813887 ORDER BY r DESC
+  }
+} {22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.41.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 549755813887 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.41.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 549755813887 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 22 23 24 29 30 31 32 33 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-2.41.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 549755813887 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 33 32 31 30 29 24 23 22 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary2-2.41.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 549755813887 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46}
+do_test boundary2-2.41.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 549755813887 ORDER BY r DESC
+  }
+} {46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.41.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 549755813887 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.42.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=-549755813888
+  }
+} {-549755813888 63 ffffff8000000000}
+do_test boundary2-2.42.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='ffffff8000000000'
+  }
+} {-549755813888 63}
+do_test boundary2-2.42.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=63
+  }
+} {-549755813888 ffffff8000000000}
+do_test boundary2-2.42.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -549755813888 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 47 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary2-2.42.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -549755813888 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 47 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary2-2.42.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -549755813888 ORDER BY r
+  }
+} {47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.42.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -549755813888 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47}
+do_test boundary2-2.42.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -549755813888 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.42.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -549755813888 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 47 48 49 50 51 52 53 54 56 57 59 60 61 62 63}
+do_test boundary2-2.42.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -549755813888 ORDER BY a DESC
+  }
+} {63 62 61 60 59 57 56 54 53 52 51 50 49 48 47 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary2-2.42.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -549755813888 ORDER BY r
+  }
+} {63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.42.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -549755813888 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63}
+do_test boundary2-2.42.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -549755813888 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.42.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -549755813888 ORDER BY a
+  }
+} {2 21 44 55 58 64}
+do_test boundary2-2.42.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -549755813888 ORDER BY a DESC
+  }
+} {64 58 55 44 21 2}
+do_test boundary2-2.42.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -549755813888 ORDER BY r
+  }
+} {55 2 64 21 44 58}
+do_test boundary2-2.42.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -549755813888 ORDER BY r DESC
+  }
+} {58 44 21 64 2 55}
+do_test boundary2-2.42.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -549755813888 ORDER BY x
+  }
+} {55 2 64 21 44 58}
+do_test boundary2-2.42.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -549755813888 ORDER BY a
+  }
+} {2 21 44 55 58 63 64}
+do_test boundary2-2.42.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -549755813888 ORDER BY a DESC
+  }
+} {64 63 58 55 44 21 2}
+do_test boundary2-2.42.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -549755813888 ORDER BY r
+  }
+} {55 2 64 21 44 58 63}
+do_test boundary2-2.42.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -549755813888 ORDER BY r DESC
+  }
+} {63 58 44 21 64 2 55}
+do_test boundary2-2.42.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -549755813888 ORDER BY x
+  }
+} {55 2 64 21 44 58 63}
+do_test boundary2-2.43.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=281474976710655
+  }
+} {281474976710655 10 0000ffffffffffff}
+do_test boundary2-2.43.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000ffffffffffff'
+  }
+} {281474976710655 10}
+do_test boundary2-2.43.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=10
+  }
+} {281474976710655 0000ffffffffffff}
+do_test boundary2-2.43.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 281474976710655 ORDER BY a
+  }
+} {3 13 17 26 27 28 43 45}
+do_test boundary2-2.43.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 281474976710655 ORDER BY a DESC
+  }
+} {45 43 28 27 26 17 13 3}
+do_test boundary2-2.43.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 281474976710655 ORDER BY r
+  }
+} {26 13 43 27 45 17 28 3}
+do_test boundary2-2.43.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 281474976710655 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26}
+do_test boundary2-2.43.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 281474976710655 ORDER BY x
+  }
+} {26 13 43 27 45 17 28 3}
+do_test boundary2-2.43.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 281474976710655 ORDER BY a
+  }
+} {3 10 13 17 26 27 28 43 45}
+do_test boundary2-2.43.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 281474976710655 ORDER BY a DESC
+  }
+} {45 43 28 27 26 17 13 10 3}
+do_test boundary2-2.43.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 281474976710655 ORDER BY r
+  }
+} {10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.43.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 281474976710655 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10}
+do_test boundary2-2.43.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 281474976710655 ORDER BY x
+  }
+} {10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.43.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 281474976710655 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 11 12 14 15 16 18 19 20 21 22 23 24 25 29 30 31 32 33 34 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-2.43.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 281474976710655 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 34 33 32 31 30 29 25 24 23 22 21 20 19 18 16 15 14 12 11 9 8 7 6 5 4 2 1}
+do_test boundary2-2.43.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 281474976710655 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34}
+do_test boundary2-2.43.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 281474976710655 ORDER BY r DESC
+  }
+} {34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.43.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 281474976710655 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.43.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 281474976710655 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 14 15 16 18 19 20 21 22 23 24 25 29 30 31 32 33 34 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-2.43.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 281474976710655 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 34 33 32 31 30 29 25 24 23 22 21 20 19 18 16 15 14 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary2-2.43.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 281474976710655 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10}
+do_test boundary2-2.43.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 281474976710655 ORDER BY r DESC
+  }
+} {10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.43.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 281474976710655 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.44.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=4398046511103
+  }
+} {4398046511103 7 000003ffffffffff}
+do_test boundary2-2.44.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='000003ffffffffff'
+  }
+} {4398046511103 7}
+do_test boundary2-2.44.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=7
+  }
+} {4398046511103 000003ffffffffff}
+do_test boundary2-2.44.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4398046511103 ORDER BY a
+  }
+} {3 10 13 17 25 26 27 28 34 43 45 56}
+do_test boundary2-2.44.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4398046511103 ORDER BY a DESC
+  }
+} {56 45 43 34 28 27 26 25 17 13 10 3}
+do_test boundary2-2.44.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4398046511103 ORDER BY r
+  }
+} {56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.44.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4398046511103 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56}
+do_test boundary2-2.44.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4398046511103 ORDER BY x
+  }
+} {56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.44.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4398046511103 ORDER BY a
+  }
+} {3 7 10 13 17 25 26 27 28 34 43 45 56}
+do_test boundary2-2.44.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4398046511103 ORDER BY a DESC
+  }
+} {56 45 43 34 28 27 26 25 17 13 10 7 3}
+do_test boundary2-2.44.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4398046511103 ORDER BY r
+  }
+} {7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.44.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4398046511103 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7}
+do_test boundary2-2.44.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4398046511103 ORDER BY x
+  }
+} {7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.44.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4398046511103 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 19 20 21 22 23 24 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 57 58 59 60 61 62 63 64}
+do_test boundary2-2.44.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4398046511103 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 24 23 22 21 20 19 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary2-2.44.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4398046511103 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19}
+do_test boundary2-2.44.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4398046511103 ORDER BY r DESC
+  }
+} {19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.44.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4398046511103 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.44.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4398046511103 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 11 12 14 15 16 18 19 20 21 22 23 24 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 57 58 59 60 61 62 63 64}
+do_test boundary2-2.44.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4398046511103 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 24 23 22 21 20 19 18 16 15 14 12 11 9 8 7 6 5 4 2 1}
+do_test boundary2-2.44.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4398046511103 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7}
+do_test boundary2-2.44.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4398046511103 ORDER BY r DESC
+  }
+} {7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.44.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4398046511103 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.45.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=268435455
+  }
+} {268435455 12 000000000fffffff}
+do_test boundary2-2.45.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='000000000fffffff'
+  }
+} {268435455 12}
+do_test boundary2-2.45.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=12
+  }
+} {268435455 000000000fffffff}
+do_test boundary2-2.45.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 268435455 ORDER BY a
+  }
+} {3 7 10 13 14 17 19 20 22 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary2-2.45.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 268435455 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 22 20 19 17 14 13 10 7 3}
+do_test boundary2-2.45.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 268435455 ORDER BY r
+  }
+} {40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.45.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 268435455 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40}
+do_test boundary2-2.45.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 268435455 ORDER BY x
+  }
+} {40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.45.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 268435455 ORDER BY a
+  }
+} {3 7 10 12 13 14 17 19 20 22 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary2-2.45.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 268435455 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 22 20 19 17 14 13 12 10 7 3}
+do_test boundary2-2.45.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 268435455 ORDER BY r
+  }
+} {12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.45.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 268435455 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12}
+do_test boundary2-2.45.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 268435455 ORDER BY x
+  }
+} {12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.45.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 268435455 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 15 16 18 21 23 24 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-2.45.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 268435455 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 24 23 21 18 16 15 11 9 8 6 5 4 2 1}
+do_test boundary2-2.45.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 268435455 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6}
+do_test boundary2-2.45.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 268435455 ORDER BY r DESC
+  }
+} {6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.45.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 268435455 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.45.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 268435455 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 15 16 18 21 23 24 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-2.45.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 268435455 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 24 23 21 18 16 15 12 11 9 8 6 5 4 2 1}
+do_test boundary2-2.45.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 268435455 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12}
+do_test boundary2-2.45.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 268435455 ORDER BY r DESC
+  }
+} {12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.45.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 268435455 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.46.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=-9223372036854775808
+  }
+} {-9223372036854775808 55 8000000000000000}
+do_test boundary2-2.46.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='8000000000000000'
+  }
+} {-9223372036854775808 55}
+do_test boundary2-2.46.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=55
+  }
+} {-9223372036854775808 8000000000000000}
+do_test boundary2-2.46.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -9223372036854775808 ORDER BY a
+  }
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 56 57 58 59 60 61 62 63 64}
+do_test boundary2-2.46.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -9223372036854775808 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1}
+do_test boundary2-2.46.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -9223372036854775808 ORDER BY r
+  }
+} {2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.46.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -9223372036854775808 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2}
+do_test boundary2-2.46.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -9223372036854775808 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.46.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -9223372036854775808 ORDER BY a
+  }
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-2.46.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -9223372036854775808 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1}
+do_test boundary2-2.46.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -9223372036854775808 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.46.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -9223372036854775808 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.46.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -9223372036854775808 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.46.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -9223372036854775808 ORDER BY a
+  }
+} {}
+do_test boundary2-2.46.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -9223372036854775808 ORDER BY a DESC
+  }
+} {}
+do_test boundary2-2.46.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -9223372036854775808 ORDER BY r
+  }
+} {}
+do_test boundary2-2.46.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -9223372036854775808 ORDER BY r DESC
+  }
+} {}
+do_test boundary2-2.46.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -9223372036854775808 ORDER BY x
+  }
+} {}
+do_test boundary2-2.46.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -9223372036854775808 ORDER BY a
+  }
+} {55}
+do_test boundary2-2.46.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -9223372036854775808 ORDER BY a DESC
+  }
+} {55}
+do_test boundary2-2.46.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -9223372036854775808 ORDER BY r
+  }
+} {55}
+do_test boundary2-2.46.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -9223372036854775808 ORDER BY r DESC
+  }
+} {55}
+do_test boundary2-2.46.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -9223372036854775808 ORDER BY x
+  }
+} {55}
+do_test boundary2-2.47.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=562949953421312
+  }
+} {562949953421312 43 0002000000000000}
+do_test boundary2-2.47.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0002000000000000'
+  }
+} {562949953421312 43}
+do_test boundary2-2.47.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=43
+  }
+} {562949953421312 0002000000000000}
+do_test boundary2-2.47.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 562949953421312 ORDER BY a
+  }
+} {3 17 27 28 45}
+do_test boundary2-2.47.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 562949953421312 ORDER BY a DESC
+  }
+} {45 28 27 17 3}
+do_test boundary2-2.47.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 562949953421312 ORDER BY r
+  }
+} {27 45 17 28 3}
+do_test boundary2-2.47.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 562949953421312 ORDER BY r DESC
+  }
+} {3 28 17 45 27}
+do_test boundary2-2.47.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 562949953421312 ORDER BY x
+  }
+} {27 45 17 28 3}
+do_test boundary2-2.47.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 562949953421312 ORDER BY a
+  }
+} {3 17 27 28 43 45}
+do_test boundary2-2.47.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 562949953421312 ORDER BY a DESC
+  }
+} {45 43 28 27 17 3}
+do_test boundary2-2.47.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 562949953421312 ORDER BY r
+  }
+} {43 27 45 17 28 3}
+do_test boundary2-2.47.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 562949953421312 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43}
+do_test boundary2-2.47.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 562949953421312 ORDER BY x
+  }
+} {43 27 45 17 28 3}
+do_test boundary2-2.47.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 562949953421312 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 18 19 20 21 22 23 24 25 26 29 30 31 32 33 34 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-2.47.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 562949953421312 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 34 33 32 31 30 29 26 25 24 23 22 21 20 19 18 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary2-2.47.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 562949953421312 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13}
+do_test boundary2-2.47.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 562949953421312 ORDER BY r DESC
+  }
+} {13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.47.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 562949953421312 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.47.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 562949953421312 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 18 19 20 21 22 23 24 25 26 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-2.47.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 562949953421312 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 26 25 24 23 22 21 20 19 18 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary2-2.47.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 562949953421312 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43}
+do_test boundary2-2.47.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 562949953421312 ORDER BY r DESC
+  }
+} {43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.47.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 562949953421312 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.48.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=-8388609
+  }
+} {-8388609 1 ffffffffff7fffff}
+do_test boundary2-2.48.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='ffffffffff7fffff'
+  }
+} {-8388609 1}
+do_test boundary2-2.48.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=1
+  }
+} {-8388609 ffffffffff7fffff}
+do_test boundary2-2.48.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -8388609 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary2-2.48.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -8388609 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-2.48.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -8388609 ORDER BY r
+  }
+} {37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.48.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -8388609 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37}
+do_test boundary2-2.48.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -8388609 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 37 29 32 54 53 52 33 38}
+do_test boundary2-2.48.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -8388609 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary2-2.48.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -8388609 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3 1}
+do_test boundary2-2.48.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -8388609 ORDER BY r
+  }
+} {1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.48.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -8388609 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1}
+do_test boundary2-2.48.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -8388609 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.48.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -8388609 ORDER BY a
+  }
+} {2 11 21 44 47 55 58 63 64}
+do_test boundary2-2.48.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -8388609 ORDER BY a DESC
+  }
+} {64 63 58 55 47 44 21 11 2}
+do_test boundary2-2.48.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -8388609 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11}
+do_test boundary2-2.48.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -8388609 ORDER BY r DESC
+  }
+} {11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.48.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -8388609 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11}
+do_test boundary2-2.48.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -8388609 ORDER BY a
+  }
+} {1 2 11 21 44 47 55 58 63 64}
+do_test boundary2-2.48.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -8388609 ORDER BY a DESC
+  }
+} {64 63 58 55 47 44 21 11 2 1}
+do_test boundary2-2.48.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -8388609 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1}
+do_test boundary2-2.48.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -8388609 ORDER BY r DESC
+  }
+} {1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.48.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -8388609 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1}
+do_test boundary2-2.49.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=16777215
+  }
+} {16777215 9 0000000000ffffff}
+do_test boundary2-2.49.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000000000ffffff'
+  }
+} {16777215 9}
+do_test boundary2-2.49.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=9
+  }
+} {16777215 0000000000ffffff}
+do_test boundary2-2.49.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 16777215 ORDER BY a
+  }
+} {3 6 7 10 12 13 14 17 19 20 22 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary2-2.49.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 16777215 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 22 20 19 17 14 13 12 10 7 6 3}
+do_test boundary2-2.49.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 16777215 ORDER BY r
+  }
+} {6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.49.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 16777215 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6}
+do_test boundary2-2.49.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 16777215 ORDER BY x
+  }
+} {6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.49.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 16777215 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 17 19 20 22 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary2-2.49.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 16777215 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 22 20 19 17 14 13 12 10 9 7 6 3}
+do_test boundary2-2.49.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 16777215 ORDER BY r
+  }
+} {9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.49.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 16777215 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9}
+do_test boundary2-2.49.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 16777215 ORDER BY x
+  }
+} {9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.49.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 16777215 ORDER BY a
+  }
+} {1 2 4 5 8 11 15 16 18 21 23 24 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-2.49.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 16777215 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 24 23 21 18 16 15 11 8 5 4 2 1}
+do_test boundary2-2.49.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 16777215 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24}
+do_test boundary2-2.49.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 16777215 ORDER BY r DESC
+  }
+} {24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.49.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 16777215 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.49.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 16777215 ORDER BY a
+  }
+} {1 2 4 5 8 9 11 15 16 18 21 23 24 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-2.49.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 16777215 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 24 23 21 18 16 15 11 9 8 5 4 2 1}
+do_test boundary2-2.49.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 16777215 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9}
+do_test boundary2-2.49.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 16777215 ORDER BY r DESC
+  }
+} {9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.49.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 16777215 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.50.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=8388608
+  }
+} {8388608 24 0000000000800000}
+do_test boundary2-2.50.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000000000800000'
+  }
+} {8388608 24}
+do_test boundary2-2.50.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=24
+  }
+} {8388608 0000000000800000}
+do_test boundary2-2.50.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 8388608 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 17 19 20 22 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary2-2.50.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 8388608 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 22 20 19 17 14 13 12 10 9 7 6 3}
+do_test boundary2-2.50.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 8388608 ORDER BY r
+  }
+} {9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.50.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 8388608 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9}
+do_test boundary2-2.50.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 8388608 ORDER BY x
+  }
+} {9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.50.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 8388608 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 17 19 20 22 24 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary2-2.50.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 8388608 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 24 22 20 19 17 14 13 12 10 9 7 6 3}
+do_test boundary2-2.50.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 8388608 ORDER BY r
+  }
+} {24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.50.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 8388608 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24}
+do_test boundary2-2.50.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 8388608 ORDER BY x
+  }
+} {24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.50.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 8388608 ORDER BY a
+  }
+} {1 2 4 5 8 11 15 16 18 21 23 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-2.50.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 8388608 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 23 21 18 16 15 11 8 5 4 2 1}
+do_test boundary2-2.50.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 8388608 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18}
+do_test boundary2-2.50.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 8388608 ORDER BY r DESC
+  }
+} {18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.50.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 8388608 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.50.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 8388608 ORDER BY a
+  }
+} {1 2 4 5 8 11 15 16 18 21 23 24 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-2.50.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 8388608 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 24 23 21 18 16 15 11 8 5 4 2 1}
+do_test boundary2-2.50.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 8388608 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24}
+do_test boundary2-2.50.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 8388608 ORDER BY r DESC
+  }
+} {24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.50.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 8388608 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.51.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=16383
+  }
+} {16383 8 0000000000003fff}
+do_test boundary2-2.51.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000000000003fff'
+  }
+} {16383 8}
+do_test boundary2-2.51.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=8
+  }
+} {16383 0000000000003fff}
+do_test boundary2-2.51.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 16383 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 50 51 56 57 62}
+do_test boundary2-2.51.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 16383 ORDER BY a DESC
+  }
+} {62 57 56 51 50 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 7 6 3}
+do_test boundary2-2.51.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 16383 ORDER BY r
+  }
+} {16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.51.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 16383 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16}
+do_test boundary2-2.51.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 16383 ORDER BY x
+  }
+} {16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.51.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 16383 ORDER BY a
+  }
+} {3 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 50 51 56 57 62}
+do_test boundary2-2.51.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 16383 ORDER BY a DESC
+  }
+} {62 57 56 51 50 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 3}
+do_test boundary2-2.51.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 16383 ORDER BY r
+  }
+} {8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.51.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 16383 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8}
+do_test boundary2-2.51.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 16383 ORDER BY x
+  }
+} {8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.51.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 16383 ORDER BY a
+  }
+} {1 2 4 5 11 21 29 30 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 61 63 64}
+do_test boundary2-2.51.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 16383 ORDER BY a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 30 29 21 11 5 4 2 1}
+do_test boundary2-2.51.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 16383 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61}
+do_test boundary2-2.51.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 16383 ORDER BY r DESC
+  }
+} {61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.51.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 16383 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.51.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 16383 ORDER BY a
+  }
+} {1 2 4 5 8 11 21 29 30 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 61 63 64}
+do_test boundary2-2.51.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 16383 ORDER BY a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 30 29 21 11 8 5 4 2 1}
+do_test boundary2-2.51.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 16383 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8}
+do_test boundary2-2.51.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 16383 ORDER BY r DESC
+  }
+} {8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.51.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 16383 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.52.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=140737488355328
+  }
+} {140737488355328 34 0000800000000000}
+do_test boundary2-2.52.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000800000000000'
+  }
+} {140737488355328 34}
+do_test boundary2-2.52.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=34
+  }
+} {140737488355328 0000800000000000}
+do_test boundary2-2.52.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 140737488355328 ORDER BY a
+  }
+} {3 10 13 17 26 27 28 43 45}
+do_test boundary2-2.52.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 140737488355328 ORDER BY a DESC
+  }
+} {45 43 28 27 26 17 13 10 3}
+do_test boundary2-2.52.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 140737488355328 ORDER BY r
+  }
+} {10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.52.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 140737488355328 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10}
+do_test boundary2-2.52.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 140737488355328 ORDER BY x
+  }
+} {10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.52.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 140737488355328 ORDER BY a
+  }
+} {3 10 13 17 26 27 28 34 43 45}
+do_test boundary2-2.52.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 140737488355328 ORDER BY a DESC
+  }
+} {45 43 34 28 27 26 17 13 10 3}
+do_test boundary2-2.52.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 140737488355328 ORDER BY r
+  }
+} {34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.52.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 140737488355328 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34}
+do_test boundary2-2.52.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 140737488355328 ORDER BY x
+  }
+} {34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.52.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 140737488355328 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 11 12 14 15 16 18 19 20 21 22 23 24 25 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-2.52.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 140737488355328 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 25 24 23 22 21 20 19 18 16 15 14 12 11 9 8 7 6 5 4 2 1}
+do_test boundary2-2.52.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 140737488355328 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25}
+do_test boundary2-2.52.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 140737488355328 ORDER BY r DESC
+  }
+} {25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.52.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 140737488355328 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.52.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 140737488355328 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 11 12 14 15 16 18 19 20 21 22 23 24 25 29 30 31 32 33 34 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-2.52.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 140737488355328 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 34 33 32 31 30 29 25 24 23 22 21 20 19 18 16 15 14 12 11 9 8 7 6 5 4 2 1}
+do_test boundary2-2.52.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 140737488355328 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34}
+do_test boundary2-2.52.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 140737488355328 ORDER BY r DESC
+  }
+} {34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.52.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 140737488355328 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.53.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=2097151
+  }
+} {2097151 15 00000000001fffff}
+do_test boundary2-2.53.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='00000000001fffff'
+  }
+} {2097151 15}
+do_test boundary2-2.53.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=15
+  }
+} {2097151 00000000001fffff}
+do_test boundary2-2.53.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2097151 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 42 43 45 46 51 56 57}
+do_test boundary2-2.53.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2097151 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 42 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 14 13 12 10 9 7 6 3}
+do_test boundary2-2.53.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2097151 ORDER BY r
+  }
+} {42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.53.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2097151 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42}
+do_test boundary2-2.53.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2097151 ORDER BY x
+  }
+} {42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.53.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2097151 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 15 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 42 43 45 46 51 56 57}
+do_test boundary2-2.53.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2097151 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 42 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 15 14 13 12 10 9 7 6 3}
+do_test boundary2-2.53.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2097151 ORDER BY r
+  }
+} {15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.53.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2097151 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15}
+do_test boundary2-2.53.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2097151 ORDER BY x
+  }
+} {15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.53.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2097151 ORDER BY a
+  }
+} {1 2 4 5 8 11 16 21 23 29 30 31 32 33 37 38 41 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-2.53.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2097151 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 41 38 37 33 32 31 30 29 23 21 16 11 8 5 4 2 1}
+do_test boundary2-2.53.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2097151 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62}
+do_test boundary2-2.53.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2097151 ORDER BY r DESC
+  }
+} {62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.53.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2097151 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.53.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2097151 ORDER BY a
+  }
+} {1 2 4 5 8 11 15 16 21 23 29 30 31 32 33 37 38 41 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-2.53.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2097151 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 41 38 37 33 32 31 30 29 23 21 16 15 11 8 5 4 2 1}
+do_test boundary2-2.53.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2097151 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15}
+do_test boundary2-2.53.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2097151 ORDER BY r DESC
+  }
+} {15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.53.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2097151 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.54.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=140737488355327
+  }
+} {140737488355327 25 00007fffffffffff}
+do_test boundary2-2.54.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='00007fffffffffff'
+  }
+} {140737488355327 25}
+do_test boundary2-2.54.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=25
+  }
+} {140737488355327 00007fffffffffff}
+do_test boundary2-2.54.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 140737488355327 ORDER BY a
+  }
+} {3 10 13 17 26 27 28 34 43 45}
+do_test boundary2-2.54.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 140737488355327 ORDER BY a DESC
+  }
+} {45 43 34 28 27 26 17 13 10 3}
+do_test boundary2-2.54.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 140737488355327 ORDER BY r
+  }
+} {34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.54.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 140737488355327 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34}
+do_test boundary2-2.54.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 140737488355327 ORDER BY x
+  }
+} {34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.54.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 140737488355327 ORDER BY a
+  }
+} {3 10 13 17 25 26 27 28 34 43 45}
+do_test boundary2-2.54.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 140737488355327 ORDER BY a DESC
+  }
+} {45 43 34 28 27 26 25 17 13 10 3}
+do_test boundary2-2.54.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 140737488355327 ORDER BY r
+  }
+} {25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.54.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 140737488355327 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25}
+do_test boundary2-2.54.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 140737488355327 ORDER BY x
+  }
+} {25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.54.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 140737488355327 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 11 12 14 15 16 18 19 20 21 22 23 24 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-2.54.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 140737488355327 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 24 23 22 21 20 19 18 16 15 14 12 11 9 8 7 6 5 4 2 1}
+do_test boundary2-2.54.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 140737488355327 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56}
+do_test boundary2-2.54.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 140737488355327 ORDER BY r DESC
+  }
+} {56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.54.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 140737488355327 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.54.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 140737488355327 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 11 12 14 15 16 18 19 20 21 22 23 24 25 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-2.54.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 140737488355327 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 25 24 23 22 21 20 19 18 16 15 14 12 11 9 8 7 6 5 4 2 1}
+do_test boundary2-2.54.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 140737488355327 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25}
+do_test boundary2-2.54.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 140737488355327 ORDER BY r DESC
+  }
+} {25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.54.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 140737488355327 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.55.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=281474976710656
+  }
+} {281474976710656 26 0001000000000000}
+do_test boundary2-2.55.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0001000000000000'
+  }
+} {281474976710656 26}
+do_test boundary2-2.55.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=26
+  }
+} {281474976710656 0001000000000000}
+do_test boundary2-2.55.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 281474976710656 ORDER BY a
+  }
+} {3 13 17 27 28 43 45}
+do_test boundary2-2.55.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 281474976710656 ORDER BY a DESC
+  }
+} {45 43 28 27 17 13 3}
+do_test boundary2-2.55.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 281474976710656 ORDER BY r
+  }
+} {13 43 27 45 17 28 3}
+do_test boundary2-2.55.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 281474976710656 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13}
+do_test boundary2-2.55.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 281474976710656 ORDER BY x
+  }
+} {13 43 27 45 17 28 3}
+do_test boundary2-2.55.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 281474976710656 ORDER BY a
+  }
+} {3 13 17 26 27 28 43 45}
+do_test boundary2-2.55.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 281474976710656 ORDER BY a DESC
+  }
+} {45 43 28 27 26 17 13 3}
+do_test boundary2-2.55.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 281474976710656 ORDER BY r
+  }
+} {26 13 43 27 45 17 28 3}
+do_test boundary2-2.55.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 281474976710656 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26}
+do_test boundary2-2.55.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 281474976710656 ORDER BY x
+  }
+} {26 13 43 27 45 17 28 3}
+do_test boundary2-2.55.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 281474976710656 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 14 15 16 18 19 20 21 22 23 24 25 29 30 31 32 33 34 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-2.55.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 281474976710656 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 34 33 32 31 30 29 25 24 23 22 21 20 19 18 16 15 14 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary2-2.55.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 281474976710656 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10}
+do_test boundary2-2.55.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 281474976710656 ORDER BY r DESC
+  }
+} {10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.55.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 281474976710656 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.55.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 281474976710656 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 14 15 16 18 19 20 21 22 23 24 25 26 29 30 31 32 33 34 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-2.55.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 281474976710656 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 34 33 32 31 30 29 26 25 24 23 22 21 20 19 18 16 15 14 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary2-2.55.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 281474976710656 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26}
+do_test boundary2-2.55.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 281474976710656 ORDER BY r DESC
+  }
+} {26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.55.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 281474976710656 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.56.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=32767
+  }
+} {32767 23 0000000000007fff}
+do_test boundary2-2.56.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000000000007fff'
+  }
+} {32767 23}
+do_test boundary2-2.56.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=23
+  }
+} {32767 0000000000007fff}
+do_test boundary2-2.56.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 32767 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 15 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 50 51 56 57 62}
+do_test boundary2-2.56.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 32767 ORDER BY a DESC
+  }
+} {62 57 56 51 50 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 15 14 13 12 10 9 7 6 3}
+do_test boundary2-2.56.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 32767 ORDER BY r
+  }
+} {50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.56.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 32767 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50}
+do_test boundary2-2.56.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 32767 ORDER BY x
+  }
+} {50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.56.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 32767 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 15 17 18 19 20 22 23 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 50 51 56 57 62}
+do_test boundary2-2.56.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 32767 ORDER BY a DESC
+  }
+} {62 57 56 51 50 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 23 22 20 19 18 17 15 14 13 12 10 9 7 6 3}
+do_test boundary2-2.56.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 32767 ORDER BY r
+  }
+} {23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.56.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 32767 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23}
+do_test boundary2-2.56.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 32767 ORDER BY x
+  }
+} {23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.56.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 32767 ORDER BY a
+  }
+} {1 2 4 5 8 11 16 21 29 30 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 61 63 64}
+do_test boundary2-2.56.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 32767 ORDER BY a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 30 29 21 16 11 8 5 4 2 1}
+do_test boundary2-2.56.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 32767 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16}
+do_test boundary2-2.56.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 32767 ORDER BY r DESC
+  }
+} {16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.56.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 32767 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.56.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 32767 ORDER BY a
+  }
+} {1 2 4 5 8 11 16 21 23 29 30 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 61 63 64}
+do_test boundary2-2.56.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 32767 ORDER BY a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 30 29 23 21 16 11 8 5 4 2 1}
+do_test boundary2-2.56.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 32767 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23}
+do_test boundary2-2.56.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 32767 ORDER BY r DESC
+  }
+} {23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.56.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 32767 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.57.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=127
+  }
+} {127 4 000000000000007f}
+do_test boundary2-2.57.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='000000000000007f'
+  }
+} {127 4}
+do_test boundary2-2.57.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=4
+  }
+} {127 000000000000007f}
+do_test boundary2-2.57.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 127 ORDER BY a
+  }
+} {3 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 34 35 36 39 40 42 43 45 46 48 49 50 51 56 57 61 62}
+do_test boundary2-2.57.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 127 ORDER BY a DESC
+  }
+} {62 61 57 56 51 50 49 48 46 45 43 42 40 39 36 35 34 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 3}
+do_test boundary2-2.57.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 127 ORDER BY r
+  }
+} {49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.57.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 127 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49}
+do_test boundary2-2.57.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 127 ORDER BY x
+  }
+} {49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.57.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 127 ORDER BY a
+  }
+} {3 4 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 34 35 36 39 40 42 43 45 46 48 49 50 51 56 57 61 62}
+do_test boundary2-2.57.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 127 ORDER BY a DESC
+  }
+} {62 61 57 56 51 50 49 48 46 45 43 42 40 39 36 35 34 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 4 3}
+do_test boundary2-2.57.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 127 ORDER BY r
+  }
+} {4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.57.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 127 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4}
+do_test boundary2-2.57.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 127 ORDER BY x
+  }
+} {4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.57.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 127 ORDER BY a
+  }
+} {1 2 5 11 21 29 31 32 33 37 38 41 44 47 52 53 54 55 58 59 60 63 64}
+do_test boundary2-2.57.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 127 ORDER BY a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 47 44 41 38 37 33 32 31 29 21 11 5 2 1}
+do_test boundary2-2.57.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 127 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31}
+do_test boundary2-2.57.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 127 ORDER BY r DESC
+  }
+} {31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.57.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 127 ORDER BY x
+  }
+} {59 60 41 5 31 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.57.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 127 ORDER BY a
+  }
+} {1 2 4 5 11 21 29 31 32 33 37 38 41 44 47 52 53 54 55 58 59 60 63 64}
+do_test boundary2-2.57.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 127 ORDER BY a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 47 44 41 38 37 33 32 31 29 21 11 5 4 2 1}
+do_test boundary2-2.57.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 127 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4}
+do_test boundary2-2.57.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 127 ORDER BY r DESC
+  }
+} {4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.57.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 127 ORDER BY x
+  }
+} {59 60 41 5 31 4 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.58.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=36028797018963967
+  }
+} {36028797018963967 27 007fffffffffffff}
+do_test boundary2-2.58.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='007fffffffffffff'
+  }
+} {36028797018963967 27}
+do_test boundary2-2.58.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=27
+  }
+} {36028797018963967 007fffffffffffff}
+do_test boundary2-2.58.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 36028797018963967 ORDER BY a
+  }
+} {3 17 28 45}
+do_test boundary2-2.58.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 36028797018963967 ORDER BY a DESC
+  }
+} {45 28 17 3}
+do_test boundary2-2.58.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 36028797018963967 ORDER BY r
+  }
+} {45 17 28 3}
+do_test boundary2-2.58.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 36028797018963967 ORDER BY r DESC
+  }
+} {3 28 17 45}
+do_test boundary2-2.58.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 36028797018963967 ORDER BY x
+  }
+} {45 17 28 3}
+do_test boundary2-2.58.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 36028797018963967 ORDER BY a
+  }
+} {3 17 27 28 45}
+do_test boundary2-2.58.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 36028797018963967 ORDER BY a DESC
+  }
+} {45 28 27 17 3}
+do_test boundary2-2.58.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 36028797018963967 ORDER BY r
+  }
+} {27 45 17 28 3}
+do_test boundary2-2.58.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 36028797018963967 ORDER BY r DESC
+  }
+} {3 28 17 45 27}
+do_test boundary2-2.58.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 36028797018963967 ORDER BY x
+  }
+} {27 45 17 28 3}
+do_test boundary2-2.58.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 36028797018963967 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 18 19 20 21 22 23 24 25 26 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-2.58.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 36028797018963967 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 26 25 24 23 22 21 20 19 18 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary2-2.58.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 36028797018963967 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43}
+do_test boundary2-2.58.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 36028797018963967 ORDER BY r DESC
+  }
+} {43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.58.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 36028797018963967 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.58.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 36028797018963967 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 18 19 20 21 22 23 24 25 26 27 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-2.58.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 36028797018963967 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 27 26 25 24 23 22 21 20 19 18 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary2-2.58.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 36028797018963967 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27}
+do_test boundary2-2.58.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 36028797018963967 ORDER BY r DESC
+  }
+} {27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.58.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 36028797018963967 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.59.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=4398046511104
+  }
+} {4398046511104 56 0000040000000000}
+do_test boundary2-2.59.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000040000000000'
+  }
+} {4398046511104 56}
+do_test boundary2-2.59.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=56
+  }
+} {4398046511104 0000040000000000}
+do_test boundary2-2.59.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4398046511104 ORDER BY a
+  }
+} {3 10 13 17 25 26 27 28 34 43 45}
+do_test boundary2-2.59.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4398046511104 ORDER BY a DESC
+  }
+} {45 43 34 28 27 26 25 17 13 10 3}
+do_test boundary2-2.59.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4398046511104 ORDER BY r
+  }
+} {25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.59.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4398046511104 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25}
+do_test boundary2-2.59.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4398046511104 ORDER BY x
+  }
+} {25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.59.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4398046511104 ORDER BY a
+  }
+} {3 10 13 17 25 26 27 28 34 43 45 56}
+do_test boundary2-2.59.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4398046511104 ORDER BY a DESC
+  }
+} {56 45 43 34 28 27 26 25 17 13 10 3}
+do_test boundary2-2.59.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4398046511104 ORDER BY r
+  }
+} {56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.59.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4398046511104 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56}
+do_test boundary2-2.59.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4398046511104 ORDER BY x
+  }
+} {56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.59.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4398046511104 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 11 12 14 15 16 18 19 20 21 22 23 24 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 57 58 59 60 61 62 63 64}
+do_test boundary2-2.59.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4398046511104 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 24 23 22 21 20 19 18 16 15 14 12 11 9 8 7 6 5 4 2 1}
+do_test boundary2-2.59.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4398046511104 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7}
+do_test boundary2-2.59.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4398046511104 ORDER BY r DESC
+  }
+} {7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.59.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4398046511104 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.59.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4398046511104 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 11 12 14 15 16 18 19 20 21 22 23 24 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-2.59.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4398046511104 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 24 23 22 21 20 19 18 16 15 14 12 11 9 8 7 6 5 4 2 1}
+do_test boundary2-2.59.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4398046511104 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56}
+do_test boundary2-2.59.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4398046511104 ORDER BY r DESC
+  }
+} {56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.59.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4398046511104 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.60.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=1
+  }
+} {1 60 0000000000000001}
+do_test boundary2-2.60.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000000000000001'
+  }
+} {1 60}
+do_test boundary2-2.60.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=60
+  }
+} {1 0000000000000001}
+do_test boundary2-2.60.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 1 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 39 40 41 42 43 45 46 48 49 50 51 56 57 61 62}
+do_test boundary2-2.60.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 1 ORDER BY a DESC
+  }
+} {62 61 57 56 51 50 49 48 46 45 43 42 41 40 39 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-2.60.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 1 ORDER BY r
+  }
+} {41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.60.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 1 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41}
+do_test boundary2-2.60.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 1 ORDER BY x
+  }
+} {41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.60.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 1 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 39 40 41 42 43 45 46 48 49 50 51 56 57 60 61 62}
+do_test boundary2-2.60.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 1 ORDER BY a DESC
+  }
+} {62 61 60 57 56 51 50 49 48 46 45 43 42 41 40 39 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-2.60.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 1 ORDER BY r
+  }
+} {60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.60.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 1 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60}
+do_test boundary2-2.60.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 1 ORDER BY x
+  }
+} {60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.60.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 1 ORDER BY a
+  }
+} {1 2 11 21 29 32 33 37 38 44 47 52 53 54 55 58 59 63 64}
+do_test boundary2-2.60.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 1 ORDER BY a DESC
+  }
+} {64 63 59 58 55 54 53 52 47 44 38 37 33 32 29 21 11 2 1}
+do_test boundary2-2.60.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 1 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59}
+do_test boundary2-2.60.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 1 ORDER BY r DESC
+  }
+} {59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.60.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 1 ORDER BY x
+  }
+} {59 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.60.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 1 ORDER BY a
+  }
+} {1 2 11 21 29 32 33 37 38 44 47 52 53 54 55 58 59 60 63 64}
+do_test boundary2-2.60.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 1 ORDER BY a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 47 44 38 37 33 32 29 21 11 2 1}
+do_test boundary2-2.60.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 1 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60}
+do_test boundary2-2.60.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 1 ORDER BY r DESC
+  }
+} {60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.60.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 1 ORDER BY x
+  }
+} {59 60 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.61.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=36028797018963968
+  }
+} {36028797018963968 45 0080000000000000}
+do_test boundary2-2.61.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0080000000000000'
+  }
+} {36028797018963968 45}
+do_test boundary2-2.61.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=45
+  }
+} {36028797018963968 0080000000000000}
+do_test boundary2-2.61.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 36028797018963968 ORDER BY a
+  }
+} {3 17 28}
+do_test boundary2-2.61.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 36028797018963968 ORDER BY a DESC
+  }
+} {28 17 3}
+do_test boundary2-2.61.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 36028797018963968 ORDER BY r
+  }
+} {17 28 3}
+do_test boundary2-2.61.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 36028797018963968 ORDER BY r DESC
+  }
+} {3 28 17}
+do_test boundary2-2.61.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 36028797018963968 ORDER BY x
+  }
+} {17 28 3}
+do_test boundary2-2.61.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 36028797018963968 ORDER BY a
+  }
+} {3 17 28 45}
+do_test boundary2-2.61.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 36028797018963968 ORDER BY a DESC
+  }
+} {45 28 17 3}
+do_test boundary2-2.61.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 36028797018963968 ORDER BY r
+  }
+} {45 17 28 3}
+do_test boundary2-2.61.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 36028797018963968 ORDER BY r DESC
+  }
+} {3 28 17 45}
+do_test boundary2-2.61.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 36028797018963968 ORDER BY x
+  }
+} {45 17 28 3}
+do_test boundary2-2.61.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 36028797018963968 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 18 19 20 21 22 23 24 25 26 27 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-2.61.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 36028797018963968 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 27 26 25 24 23 22 21 20 19 18 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary2-2.61.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 36028797018963968 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27}
+do_test boundary2-2.61.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 36028797018963968 ORDER BY r DESC
+  }
+} {27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.61.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 36028797018963968 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.61.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 36028797018963968 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 18 19 20 21 22 23 24 25 26 27 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-2.61.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 36028797018963968 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 27 26 25 24 23 22 21 20 19 18 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary2-2.61.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 36028797018963968 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45}
+do_test boundary2-2.61.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 36028797018963968 ORDER BY r DESC
+  }
+} {45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.61.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 36028797018963968 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.62.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=-2147483649
+  }
+} {-2147483649 47 ffffffff7fffffff}
+do_test boundary2-2.62.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='ffffffff7fffffff'
+  }
+} {-2147483649 47}
+do_test boundary2-2.62.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=47
+  }
+} {-2147483649 ffffffff7fffffff}
+do_test boundary2-2.62.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -2147483649 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary2-2.62.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -2147483649 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary2-2.62.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -2147483649 ORDER BY r
+  }
+} {11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.62.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -2147483649 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11}
+do_test boundary2-2.62.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -2147483649 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.62.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -2147483649 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 47 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary2-2.62.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -2147483649 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 47 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary2-2.62.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -2147483649 ORDER BY r
+  }
+} {47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.62.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -2147483649 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47}
+do_test boundary2-2.62.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -2147483649 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.62.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -2147483649 ORDER BY a
+  }
+} {2 21 44 55 58 63 64}
+do_test boundary2-2.62.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -2147483649 ORDER BY a DESC
+  }
+} {64 63 58 55 44 21 2}
+do_test boundary2-2.62.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -2147483649 ORDER BY r
+  }
+} {55 2 64 21 44 58 63}
+do_test boundary2-2.62.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -2147483649 ORDER BY r DESC
+  }
+} {63 58 44 21 64 2 55}
+do_test boundary2-2.62.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -2147483649 ORDER BY x
+  }
+} {55 2 64 21 44 58 63}
+do_test boundary2-2.62.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -2147483649 ORDER BY a
+  }
+} {2 21 44 47 55 58 63 64}
+do_test boundary2-2.62.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -2147483649 ORDER BY a DESC
+  }
+} {64 63 58 55 47 44 21 2}
+do_test boundary2-2.62.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -2147483649 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47}
+do_test boundary2-2.62.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -2147483649 ORDER BY r DESC
+  }
+} {47 63 58 44 21 64 2 55}
+do_test boundary2-2.62.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -2147483649 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47}
+do_test boundary2-2.63.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=-36028797018963969
+  }
+} {-36028797018963969 2 ff7fffffffffffff}
+do_test boundary2-2.63.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='ff7fffffffffffff'
+  }
+} {-36028797018963969 2}
+do_test boundary2-2.63.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=2
+  }
+} {-36028797018963969 ff7fffffffffffff}
+do_test boundary2-2.63.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -36028797018963969 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 56 57 58 59 60 61 62 63 64}
+do_test boundary2-2.63.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -36028797018963969 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary2-2.63.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -36028797018963969 ORDER BY r
+  }
+} {64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.63.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -36028797018963969 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64}
+do_test boundary2-2.63.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -36028797018963969 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.63.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -36028797018963969 ORDER BY a
+  }
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 56 57 58 59 60 61 62 63 64}
+do_test boundary2-2.63.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -36028797018963969 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1}
+do_test boundary2-2.63.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -36028797018963969 ORDER BY r
+  }
+} {2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.63.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -36028797018963969 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2}
+do_test boundary2-2.63.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -36028797018963969 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.63.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -36028797018963969 ORDER BY a
+  }
+} {55}
+do_test boundary2-2.63.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -36028797018963969 ORDER BY a DESC
+  }
+} {55}
+do_test boundary2-2.63.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -36028797018963969 ORDER BY r
+  }
+} {55}
+do_test boundary2-2.63.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -36028797018963969 ORDER BY r DESC
+  }
+} {55}
+do_test boundary2-2.63.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -36028797018963969 ORDER BY x
+  }
+} {55}
+do_test boundary2-2.63.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -36028797018963969 ORDER BY a
+  }
+} {2 55}
+do_test boundary2-2.63.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -36028797018963969 ORDER BY a DESC
+  }
+} {55 2}
+do_test boundary2-2.63.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -36028797018963969 ORDER BY r
+  }
+} {55 2}
+do_test boundary2-2.63.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -36028797018963969 ORDER BY r DESC
+  }
+} {2 55}
+do_test boundary2-2.63.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -36028797018963969 ORDER BY x
+  }
+} {55 2}
+do_test boundary2-2.64.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=3
+  }
+} {3 5 0000000000000003}
+do_test boundary2-2.64.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000000000000003'
+  }
+} {3 5}
+do_test boundary2-2.64.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=5
+  }
+} {3 0000000000000003}
+do_test boundary2-2.64.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 3 ORDER BY a
+  }
+} {3 4 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 39 40 42 43 45 46 48 49 50 51 56 57 61 62}
+do_test boundary2-2.64.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 3 ORDER BY a DESC
+  }
+} {62 61 57 56 51 50 49 48 46 45 43 42 40 39 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 4 3}
+do_test boundary2-2.64.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 3 ORDER BY r
+  }
+} {31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.64.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 3 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31}
+do_test boundary2-2.64.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 3 ORDER BY x
+  }
+} {31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.64.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 3 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 39 40 42 43 45 46 48 49 50 51 56 57 61 62}
+do_test boundary2-2.64.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 3 ORDER BY a DESC
+  }
+} {62 61 57 56 51 50 49 48 46 45 43 42 40 39 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-2.64.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 3 ORDER BY r
+  }
+} {5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.64.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 3 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5}
+do_test boundary2-2.64.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 3 ORDER BY x
+  }
+} {5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.64.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 3 ORDER BY a
+  }
+} {1 2 11 21 29 32 33 37 38 41 44 47 52 53 54 55 58 59 60 63 64}
+do_test boundary2-2.64.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 3 ORDER BY a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 47 44 41 38 37 33 32 29 21 11 2 1}
+do_test boundary2-2.64.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 3 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41}
+do_test boundary2-2.64.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 3 ORDER BY r DESC
+  }
+} {41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.64.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 3 ORDER BY x
+  }
+} {59 60 41 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.64.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 3 ORDER BY a
+  }
+} {1 2 5 11 21 29 32 33 37 38 41 44 47 52 53 54 55 58 59 60 63 64}
+do_test boundary2-2.64.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 3 ORDER BY a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 47 44 41 38 37 33 32 29 21 11 5 2 1}
+do_test boundary2-2.64.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 3 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5}
+do_test boundary2-2.64.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 3 ORDER BY r DESC
+  }
+} {5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.64.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 3 ORDER BY x
+  }
+} {59 60 41 5 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.65.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 9.22337303685477580800e+18 ORDER BY a
+  }
+} {}
+do_test boundary2-2.65.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 9.22337303685477580800e+18 ORDER BY a DESC
+  }
+} {}
+do_test boundary2-2.65.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 9.22337303685477580800e+18 ORDER BY r
+  }
+} {}
+do_test boundary2-2.65.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 9.22337303685477580800e+18 ORDER BY r DESC
+  }
+} {}
+do_test boundary2-2.65.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 9.22337303685477580800e+18 ORDER BY x
+  }
+} {}
+do_test boundary2-2.65.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 9.22337303685477580800e+18 ORDER BY a
+  }
+} {}
+do_test boundary2-2.65.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 9.22337303685477580800e+18 ORDER BY a DESC
+  }
+} {}
+do_test boundary2-2.65.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 9.22337303685477580800e+18 ORDER BY r
+  }
+} {}
+do_test boundary2-2.65.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 9.22337303685477580800e+18 ORDER BY r DESC
+  }
+} {}
+do_test boundary2-2.65.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 9.22337303685477580800e+18 ORDER BY x
+  }
+} {}
+do_test boundary2-2.65.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 9.22337303685477580800e+18 ORDER BY a
+  }
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-2.65.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 9.22337303685477580800e+18 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1}
+do_test boundary2-2.65.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 9.22337303685477580800e+18 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.65.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 9.22337303685477580800e+18 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.65.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 9.22337303685477580800e+18 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.65.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 9.22337303685477580800e+18 ORDER BY a
+  }
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-2.65.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 9.22337303685477580800e+18 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1}
+do_test boundary2-2.65.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 9.22337303685477580800e+18 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.65.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 9.22337303685477580800e+18 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.65.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 9.22337303685477580800e+18 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.66.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -9.22337303685477580800e+18 ORDER BY a
+  }
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-2.66.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -9.22337303685477580800e+18 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1}
+do_test boundary2-2.66.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -9.22337303685477580800e+18 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.66.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -9.22337303685477580800e+18 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.66.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -9.22337303685477580800e+18 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.66.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -9.22337303685477580800e+18 ORDER BY a
+  }
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-2.66.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -9.22337303685477580800e+18 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1}
+do_test boundary2-2.66.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -9.22337303685477580800e+18 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-2.66.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -9.22337303685477580800e+18 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-2.66.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -9.22337303685477580800e+18 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-2.66.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -9.22337303685477580800e+18 ORDER BY a
+  }
+} {}
+do_test boundary2-2.66.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -9.22337303685477580800e+18 ORDER BY a DESC
+  }
+} {}
+do_test boundary2-2.66.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -9.22337303685477580800e+18 ORDER BY r
+  }
+} {}
+do_test boundary2-2.66.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -9.22337303685477580800e+18 ORDER BY r DESC
+  }
+} {}
+do_test boundary2-2.66.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -9.22337303685477580800e+18 ORDER BY x
+  }
+} {}
+do_test boundary2-2.66.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -9.22337303685477580800e+18 ORDER BY a
+  }
+} {}
+do_test boundary2-2.66.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -9.22337303685477580800e+18 ORDER BY a DESC
+  }
+} {}
+do_test boundary2-2.66.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -9.22337303685477580800e+18 ORDER BY r
+  }
+} {}
+do_test boundary2-2.66.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -9.22337303685477580800e+18 ORDER BY r DESC
+  }
+} {}
+do_test boundary2-2.66.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -9.22337303685477580800e+18 ORDER BY x
+  }
+} {}
+do_test boundary2-3.1 {
+  db eval {
+    DROP INDEX t1i1;
+    DROP INDEX t1i2;
+    DROP INDEX t1i3;
+  }
+} {}
+do_test boundary2-4.1.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=72057594037927935
+  }
+} {72057594037927935 17 00ffffffffffffff}
+do_test boundary2-4.1.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='00ffffffffffffff'
+  }
+} {72057594037927935 17}
+do_test boundary2-4.1.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=17
+  }
+} {72057594037927935 00ffffffffffffff}
+do_test boundary2-4.1.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 72057594037927935 ORDER BY a
+  }
+} {3 28}
+do_test boundary2-4.1.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 72057594037927935 ORDER BY a DESC
+  }
+} {28 3}
+do_test boundary2-4.1.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 72057594037927935 ORDER BY r
+  }
+} {28 3}
+do_test boundary2-4.1.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 72057594037927935 ORDER BY r DESC
+  }
+} {3 28}
+do_test boundary2-4.1.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 72057594037927935 ORDER BY x
+  }
+} {28 3}
+do_test boundary2-4.1.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 72057594037927935 ORDER BY a
+  }
+} {3 17 28}
+do_test boundary2-4.1.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 72057594037927935 ORDER BY a DESC
+  }
+} {28 17 3}
+do_test boundary2-4.1.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 72057594037927935 ORDER BY r
+  }
+} {17 28 3}
+do_test boundary2-4.1.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 72057594037927935 ORDER BY r DESC
+  }
+} {3 28 17}
+do_test boundary2-4.1.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 72057594037927935 ORDER BY x
+  }
+} {17 28 3}
+do_test boundary2-4.1.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 72057594037927935 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 18 19 20 21 22 23 24 25 26 27 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-4.1.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 72057594037927935 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 27 26 25 24 23 22 21 20 19 18 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary2-4.1.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 72057594037927935 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45}
+do_test boundary2-4.1.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 72057594037927935 ORDER BY r DESC
+  }
+} {45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.1.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 72057594037927935 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.1.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 72057594037927935 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-4.1.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 72057594037927935 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary2-4.1.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 72057594037927935 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17}
+do_test boundary2-4.1.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 72057594037927935 ORDER BY r DESC
+  }
+} {17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.1.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 72057594037927935 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.2.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=16384
+  }
+} {16384 16 0000000000004000}
+do_test boundary2-4.2.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000000000004000'
+  }
+} {16384 16}
+do_test boundary2-4.2.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=16
+  }
+} {16384 0000000000004000}
+do_test boundary2-4.2.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 16384 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 15 17 18 19 20 22 23 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 50 51 56 57 62}
+do_test boundary2-4.2.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 16384 ORDER BY a DESC
+  }
+} {62 57 56 51 50 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 23 22 20 19 18 17 15 14 13 12 10 9 7 6 3}
+do_test boundary2-4.2.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 16384 ORDER BY r
+  }
+} {23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.2.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 16384 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23}
+do_test boundary2-4.2.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 16384 ORDER BY x
+  }
+} {23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.2.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 16384 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 50 51 56 57 62}
+do_test boundary2-4.2.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 16384 ORDER BY a DESC
+  }
+} {62 57 56 51 50 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 7 6 3}
+do_test boundary2-4.2.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 16384 ORDER BY r
+  }
+} {16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.2.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 16384 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16}
+do_test boundary2-4.2.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 16384 ORDER BY x
+  }
+} {16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.2.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 16384 ORDER BY a
+  }
+} {1 2 4 5 8 11 21 29 30 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 61 63 64}
+do_test boundary2-4.2.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 16384 ORDER BY a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 30 29 21 11 8 5 4 2 1}
+do_test boundary2-4.2.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 16384 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8}
+do_test boundary2-4.2.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 16384 ORDER BY r DESC
+  }
+} {8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.2.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 16384 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.2.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 16384 ORDER BY a
+  }
+} {1 2 4 5 8 11 16 21 29 30 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 61 63 64}
+do_test boundary2-4.2.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 16384 ORDER BY a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 30 29 21 16 11 8 5 4 2 1}
+do_test boundary2-4.2.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 16384 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16}
+do_test boundary2-4.2.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 16384 ORDER BY r DESC
+  }
+} {16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.2.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 16384 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.3.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=4294967296
+  }
+} {4294967296 36 0000000100000000}
+do_test boundary2-4.3.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000000100000000'
+  }
+} {4294967296 36}
+do_test boundary2-4.3.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=36
+  }
+} {4294967296 0000000100000000}
+do_test boundary2-4.3.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4294967296 ORDER BY a
+  }
+} {3 7 10 13 17 19 22 25 26 27 28 34 35 39 43 45 46 56 57}
+do_test boundary2-4.3.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4294967296 ORDER BY a DESC
+  }
+} {57 56 46 45 43 39 35 34 28 27 26 25 22 19 17 13 10 7 3}
+do_test boundary2-4.3.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4294967296 ORDER BY r
+  }
+} {39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.3.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4294967296 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39}
+do_test boundary2-4.3.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4294967296 ORDER BY x
+  }
+} {39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.3.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4294967296 ORDER BY a
+  }
+} {3 7 10 13 17 19 22 25 26 27 28 34 35 36 39 43 45 46 56 57}
+do_test boundary2-4.3.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4294967296 ORDER BY a DESC
+  }
+} {57 56 46 45 43 39 36 35 34 28 27 26 25 22 19 17 13 10 7 3}
+do_test boundary2-4.3.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4294967296 ORDER BY r
+  }
+} {36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.3.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4294967296 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36}
+do_test boundary2-4.3.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4294967296 ORDER BY x
+  }
+} {36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.3.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4294967296 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 23 24 29 30 31 32 33 37 38 40 41 42 44 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-4.3.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4294967296 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 44 42 41 40 38 37 33 32 31 30 29 24 23 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary2-4.3.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4294967296 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14}
+do_test boundary2-4.3.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4294967296 ORDER BY r DESC
+  }
+} {14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.3.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4294967296 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.3.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4294967296 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 23 24 29 30 31 32 33 36 37 38 40 41 42 44 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-4.3.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4294967296 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 44 42 41 40 38 37 36 33 32 31 30 29 24 23 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary2-4.3.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4294967296 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36}
+do_test boundary2-4.3.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4294967296 ORDER BY r DESC
+  }
+} {36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.3.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4294967296 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.4.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=16777216
+  }
+} {16777216 6 0000000001000000}
+do_test boundary2-4.4.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000000001000000'
+  }
+} {16777216 6}
+do_test boundary2-4.4.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=6
+  }
+} {16777216 0000000001000000}
+do_test boundary2-4.4.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 16777216 ORDER BY a
+  }
+} {3 7 10 12 13 14 17 19 20 22 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary2-4.4.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 16777216 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 22 20 19 17 14 13 12 10 7 3}
+do_test boundary2-4.4.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 16777216 ORDER BY r
+  }
+} {12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.4.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 16777216 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12}
+do_test boundary2-4.4.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 16777216 ORDER BY x
+  }
+} {12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.4.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 16777216 ORDER BY a
+  }
+} {3 6 7 10 12 13 14 17 19 20 22 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary2-4.4.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 16777216 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 22 20 19 17 14 13 12 10 7 6 3}
+do_test boundary2-4.4.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 16777216 ORDER BY r
+  }
+} {6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.4.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 16777216 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6}
+do_test boundary2-4.4.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 16777216 ORDER BY x
+  }
+} {6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.4.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 16777216 ORDER BY a
+  }
+} {1 2 4 5 8 9 11 15 16 18 21 23 24 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-4.4.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 16777216 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 24 23 21 18 16 15 11 9 8 5 4 2 1}
+do_test boundary2-4.4.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 16777216 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9}
+do_test boundary2-4.4.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 16777216 ORDER BY r DESC
+  }
+} {9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.4.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 16777216 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.4.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 16777216 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 15 16 18 21 23 24 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-4.4.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 16777216 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 24 23 21 18 16 15 11 9 8 6 5 4 2 1}
+do_test boundary2-4.4.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 16777216 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6}
+do_test boundary2-4.4.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 16777216 ORDER BY r DESC
+  }
+} {6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.4.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 16777216 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.5.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=-32769
+  }
+} {-32769 29 ffffffffffff7fff}
+do_test boundary2-4.5.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='ffffffffffff7fff'
+  }
+} {-32769 29}
+do_test boundary2-4.5.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=29
+  }
+} {-32769 ffffffffffff7fff}
+do_test boundary2-4.5.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -32769 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 32 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary2-4.5.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -32769 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 32 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-4.5.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -32769 ORDER BY r
+  }
+} {32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.5.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -32769 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32}
+do_test boundary2-4.5.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -32769 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 32 54 53 52 33 38}
+do_test boundary2-4.5.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -32769 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary2-4.5.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -32769 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-4.5.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -32769 ORDER BY r
+  }
+} {29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.5.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -32769 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29}
+do_test boundary2-4.5.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -32769 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 29 32 54 53 52 33 38}
+do_test boundary2-4.5.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -32769 ORDER BY a
+  }
+} {1 2 11 21 37 44 47 55 58 63 64}
+do_test boundary2-4.5.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -32769 ORDER BY a DESC
+  }
+} {64 63 58 55 47 44 37 21 11 2 1}
+do_test boundary2-4.5.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -32769 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37}
+do_test boundary2-4.5.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -32769 ORDER BY r DESC
+  }
+} {37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.5.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -32769 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37}
+do_test boundary2-4.5.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -32769 ORDER BY a
+  }
+} {1 2 11 21 29 37 44 47 55 58 63 64}
+do_test boundary2-4.5.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -32769 ORDER BY a DESC
+  }
+} {64 63 58 55 47 44 37 29 21 11 2 1}
+do_test boundary2-4.5.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -32769 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29}
+do_test boundary2-4.5.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -32769 ORDER BY r DESC
+  }
+} {29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.5.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -32769 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29}
+do_test boundary2-4.6.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=-140737488355329
+  }
+} {-140737488355329 21 ffff7fffffffffff}
+do_test boundary2-4.6.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='ffff7fffffffffff'
+  }
+} {-140737488355329 21}
+do_test boundary2-4.6.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=21
+  }
+} {-140737488355329 ffff7fffffffffff}
+do_test boundary2-4.6.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -140737488355329 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 56 57 58 59 60 61 62 63}
+do_test boundary2-4.6.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -140737488355329 ORDER BY a DESC
+  }
+} {63 62 61 60 59 58 57 56 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary2-4.6.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -140737488355329 ORDER BY r
+  }
+} {44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.6.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -140737488355329 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44}
+do_test boundary2-4.6.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -140737488355329 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.6.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -140737488355329 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 56 57 58 59 60 61 62 63}
+do_test boundary2-4.6.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -140737488355329 ORDER BY a DESC
+  }
+} {63 62 61 60 59 58 57 56 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary2-4.6.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -140737488355329 ORDER BY r
+  }
+} {21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.6.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -140737488355329 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21}
+do_test boundary2-4.6.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -140737488355329 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.6.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -140737488355329 ORDER BY a
+  }
+} {2 55 64}
+do_test boundary2-4.6.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -140737488355329 ORDER BY a DESC
+  }
+} {64 55 2}
+do_test boundary2-4.6.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -140737488355329 ORDER BY r
+  }
+} {55 2 64}
+do_test boundary2-4.6.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -140737488355329 ORDER BY r DESC
+  }
+} {64 2 55}
+do_test boundary2-4.6.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -140737488355329 ORDER BY x
+  }
+} {55 2 64}
+do_test boundary2-4.6.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -140737488355329 ORDER BY a
+  }
+} {2 21 55 64}
+do_test boundary2-4.6.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -140737488355329 ORDER BY a DESC
+  }
+} {64 55 21 2}
+do_test boundary2-4.6.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -140737488355329 ORDER BY r
+  }
+} {55 2 64 21}
+do_test boundary2-4.6.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -140737488355329 ORDER BY r DESC
+  }
+} {21 64 2 55}
+do_test boundary2-4.6.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -140737488355329 ORDER BY x
+  }
+} {55 2 64 21}
+do_test boundary2-4.7.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=2
+  }
+} {2 41 0000000000000002}
+do_test boundary2-4.7.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000000000000002'
+  }
+} {2 41}
+do_test boundary2-4.7.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=41
+  }
+} {2 0000000000000002}
+do_test boundary2-4.7.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 39 40 42 43 45 46 48 49 50 51 56 57 61 62}
+do_test boundary2-4.7.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2 ORDER BY a DESC
+  }
+} {62 61 57 56 51 50 49 48 46 45 43 42 40 39 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-4.7.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2 ORDER BY r
+  }
+} {5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.7.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5}
+do_test boundary2-4.7.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2 ORDER BY x
+  }
+} {5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.7.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 39 40 41 42 43 45 46 48 49 50 51 56 57 61 62}
+do_test boundary2-4.7.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2 ORDER BY a DESC
+  }
+} {62 61 57 56 51 50 49 48 46 45 43 42 41 40 39 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-4.7.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2 ORDER BY r
+  }
+} {41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.7.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41}
+do_test boundary2-4.7.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2 ORDER BY x
+  }
+} {41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.7.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2 ORDER BY a
+  }
+} {1 2 11 21 29 32 33 37 38 44 47 52 53 54 55 58 59 60 63 64}
+do_test boundary2-4.7.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2 ORDER BY a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 47 44 38 37 33 32 29 21 11 2 1}
+do_test boundary2-4.7.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60}
+do_test boundary2-4.7.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2 ORDER BY r DESC
+  }
+} {60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.7.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2 ORDER BY x
+  }
+} {59 60 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.7.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2 ORDER BY a
+  }
+} {1 2 11 21 29 32 33 37 38 41 44 47 52 53 54 55 58 59 60 63 64}
+do_test boundary2-4.7.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2 ORDER BY a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 47 44 41 38 37 33 32 29 21 11 2 1}
+do_test boundary2-4.7.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41}
+do_test boundary2-4.7.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2 ORDER BY r DESC
+  }
+} {41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.7.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2 ORDER BY x
+  }
+} {59 60 41 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.8.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=4
+  }
+} {4 31 0000000000000004}
+do_test boundary2-4.8.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000000000000004'
+  }
+} {4 31}
+do_test boundary2-4.8.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=31
+  }
+} {4 0000000000000004}
+do_test boundary2-4.8.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4 ORDER BY a
+  }
+} {3 4 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 34 35 36 39 40 42 43 45 46 48 49 50 51 56 57 61 62}
+do_test boundary2-4.8.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4 ORDER BY a DESC
+  }
+} {62 61 57 56 51 50 49 48 46 45 43 42 40 39 36 35 34 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 4 3}
+do_test boundary2-4.8.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4 ORDER BY r
+  }
+} {4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.8.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4}
+do_test boundary2-4.8.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4 ORDER BY x
+  }
+} {4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.8.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4 ORDER BY a
+  }
+} {3 4 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 39 40 42 43 45 46 48 49 50 51 56 57 61 62}
+do_test boundary2-4.8.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4 ORDER BY a DESC
+  }
+} {62 61 57 56 51 50 49 48 46 45 43 42 40 39 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 4 3}
+do_test boundary2-4.8.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4 ORDER BY r
+  }
+} {31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.8.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31}
+do_test boundary2-4.8.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4 ORDER BY x
+  }
+} {31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.8.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4 ORDER BY a
+  }
+} {1 2 5 11 21 29 32 33 37 38 41 44 47 52 53 54 55 58 59 60 63 64}
+do_test boundary2-4.8.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4 ORDER BY a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 47 44 41 38 37 33 32 29 21 11 5 2 1}
+do_test boundary2-4.8.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5}
+do_test boundary2-4.8.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4 ORDER BY r DESC
+  }
+} {5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.8.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4 ORDER BY x
+  }
+} {59 60 41 5 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.8.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4 ORDER BY a
+  }
+} {1 2 5 11 21 29 31 32 33 37 38 41 44 47 52 53 54 55 58 59 60 63 64}
+do_test boundary2-4.8.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4 ORDER BY a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 47 44 41 38 37 33 32 31 29 21 11 5 2 1}
+do_test boundary2-4.8.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31}
+do_test boundary2-4.8.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4 ORDER BY r DESC
+  }
+} {31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.8.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4 ORDER BY x
+  }
+} {59 60 41 5 31 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.9.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=562949953421311
+  }
+} {562949953421311 13 0001ffffffffffff}
+do_test boundary2-4.9.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0001ffffffffffff'
+  }
+} {562949953421311 13}
+do_test boundary2-4.9.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=13
+  }
+} {562949953421311 0001ffffffffffff}
+do_test boundary2-4.9.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 562949953421311 ORDER BY a
+  }
+} {3 17 27 28 43 45}
+do_test boundary2-4.9.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 562949953421311 ORDER BY a DESC
+  }
+} {45 43 28 27 17 3}
+do_test boundary2-4.9.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 562949953421311 ORDER BY r
+  }
+} {43 27 45 17 28 3}
+do_test boundary2-4.9.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 562949953421311 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43}
+do_test boundary2-4.9.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 562949953421311 ORDER BY x
+  }
+} {43 27 45 17 28 3}
+do_test boundary2-4.9.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 562949953421311 ORDER BY a
+  }
+} {3 13 17 27 28 43 45}
+do_test boundary2-4.9.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 562949953421311 ORDER BY a DESC
+  }
+} {45 43 28 27 17 13 3}
+do_test boundary2-4.9.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 562949953421311 ORDER BY r
+  }
+} {13 43 27 45 17 28 3}
+do_test boundary2-4.9.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 562949953421311 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13}
+do_test boundary2-4.9.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 562949953421311 ORDER BY x
+  }
+} {13 43 27 45 17 28 3}
+do_test boundary2-4.9.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 562949953421311 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 14 15 16 18 19 20 21 22 23 24 25 26 29 30 31 32 33 34 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-4.9.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 562949953421311 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 34 33 32 31 30 29 26 25 24 23 22 21 20 19 18 16 15 14 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary2-4.9.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 562949953421311 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26}
+do_test boundary2-4.9.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 562949953421311 ORDER BY r DESC
+  }
+} {26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.9.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 562949953421311 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.9.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 562949953421311 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 18 19 20 21 22 23 24 25 26 29 30 31 32 33 34 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-4.9.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 562949953421311 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 34 33 32 31 30 29 26 25 24 23 22 21 20 19 18 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary2-4.9.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 562949953421311 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13}
+do_test boundary2-4.9.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 562949953421311 ORDER BY r DESC
+  }
+} {13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.9.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 562949953421311 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.10.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=256
+  }
+} {256 61 0000000000000100}
+do_test boundary2-4.10.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000000000000100'
+  }
+} {256 61}
+do_test boundary2-4.10.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=61
+  }
+} {256 0000000000000100}
+do_test boundary2-4.10.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 256 ORDER BY a
+  }
+} {3 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 50 51 56 57 62}
+do_test boundary2-4.10.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 256 ORDER BY a DESC
+  }
+} {62 57 56 51 50 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 3}
+do_test boundary2-4.10.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 256 ORDER BY r
+  }
+} {8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.10.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 256 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8}
+do_test boundary2-4.10.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 256 ORDER BY x
+  }
+} {8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.10.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 256 ORDER BY a
+  }
+} {3 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 50 51 56 57 61 62}
+do_test boundary2-4.10.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 256 ORDER BY a DESC
+  }
+} {62 61 57 56 51 50 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 3}
+do_test boundary2-4.10.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 256 ORDER BY r
+  }
+} {61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.10.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 256 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61}
+do_test boundary2-4.10.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 256 ORDER BY x
+  }
+} {61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.10.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 256 ORDER BY a
+  }
+} {1 2 4 5 11 21 29 30 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 63 64}
+do_test boundary2-4.10.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 256 ORDER BY a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 30 29 21 11 5 4 2 1}
+do_test boundary2-4.10.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 256 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30}
+do_test boundary2-4.10.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 256 ORDER BY r DESC
+  }
+} {30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.10.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 256 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.10.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 256 ORDER BY a
+  }
+} {1 2 4 5 11 21 29 30 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 61 63 64}
+do_test boundary2-4.10.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 256 ORDER BY a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 30 29 21 11 5 4 2 1}
+do_test boundary2-4.10.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 256 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61}
+do_test boundary2-4.10.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 256 ORDER BY r DESC
+  }
+} {61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.10.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 256 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.11.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=34359738368
+  }
+} {34359738368 22 0000000800000000}
+do_test boundary2-4.11.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000000800000000'
+  }
+} {34359738368 22}
+do_test boundary2-4.11.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=22
+  }
+} {34359738368 0000000800000000}
+do_test boundary2-4.11.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 34359738368 ORDER BY a
+  }
+} {3 7 10 13 17 19 25 26 27 28 34 35 43 45 46 56 57}
+do_test boundary2-4.11.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 34359738368 ORDER BY a DESC
+  }
+} {57 56 46 45 43 35 34 28 27 26 25 19 17 13 10 7 3}
+do_test boundary2-4.11.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 34359738368 ORDER BY r
+  }
+} {46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.11.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 34359738368 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46}
+do_test boundary2-4.11.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 34359738368 ORDER BY x
+  }
+} {46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.11.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 34359738368 ORDER BY a
+  }
+} {3 7 10 13 17 19 22 25 26 27 28 34 35 43 45 46 56 57}
+do_test boundary2-4.11.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 34359738368 ORDER BY a DESC
+  }
+} {57 56 46 45 43 35 34 28 27 26 25 22 19 17 13 10 7 3}
+do_test boundary2-4.11.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 34359738368 ORDER BY r
+  }
+} {22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.11.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 34359738368 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22}
+do_test boundary2-4.11.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 34359738368 ORDER BY x
+  }
+} {22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.11.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 34359738368 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 23 24 29 30 31 32 33 36 37 38 39 40 41 42 44 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-4.11.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 34359738368 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 44 42 41 40 39 38 37 36 33 32 31 30 29 24 23 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary2-4.11.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 34359738368 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39}
+do_test boundary2-4.11.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 34359738368 ORDER BY r DESC
+  }
+} {39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.11.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 34359738368 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.11.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 34359738368 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 22 23 24 29 30 31 32 33 36 37 38 39 40 41 42 44 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-4.11.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 34359738368 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 44 42 41 40 39 38 37 36 33 32 31 30 29 24 23 22 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary2-4.11.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 34359738368 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22}
+do_test boundary2-4.11.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 34359738368 ORDER BY r DESC
+  }
+} {22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.11.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 34359738368 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.12.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=65536
+  }
+} {65536 62 0000000000010000}
+do_test boundary2-4.12.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000000000010000'
+  }
+} {65536 62}
+do_test boundary2-4.12.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=62
+  }
+} {65536 0000000000010000}
+do_test boundary2-4.12.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 65536 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 15 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 42 43 45 46 51 56 57}
+do_test boundary2-4.12.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 65536 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 42 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 15 14 13 12 10 9 7 6 3}
+do_test boundary2-4.12.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 65536 ORDER BY r
+  }
+} {15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.12.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 65536 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15}
+do_test boundary2-4.12.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 65536 ORDER BY x
+  }
+} {15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.12.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 65536 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 15 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 42 43 45 46 51 56 57 62}
+do_test boundary2-4.12.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 65536 ORDER BY a DESC
+  }
+} {62 57 56 51 46 45 43 42 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 15 14 13 12 10 9 7 6 3}
+do_test boundary2-4.12.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 65536 ORDER BY r
+  }
+} {62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.12.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 65536 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62}
+do_test boundary2-4.12.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 65536 ORDER BY x
+  }
+} {62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.12.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 65536 ORDER BY a
+  }
+} {1 2 4 5 8 11 16 21 23 29 30 31 32 33 37 38 41 44 47 48 49 50 52 53 54 55 58 59 60 61 63 64}
+do_test boundary2-4.12.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 65536 ORDER BY a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 50 49 48 47 44 41 38 37 33 32 31 30 29 23 21 16 11 8 5 4 2 1}
+do_test boundary2-4.12.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 65536 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48}
+do_test boundary2-4.12.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 65536 ORDER BY r DESC
+  }
+} {48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.12.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 65536 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.12.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 65536 ORDER BY a
+  }
+} {1 2 4 5 8 11 16 21 23 29 30 31 32 33 37 38 41 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-4.12.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 65536 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 41 38 37 33 32 31 30 29 23 21 16 11 8 5 4 2 1}
+do_test boundary2-4.12.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 65536 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62}
+do_test boundary2-4.12.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 65536 ORDER BY r DESC
+  }
+} {62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.12.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 65536 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.13.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=268435456
+  }
+} {268435456 40 0000000010000000}
+do_test boundary2-4.13.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000000010000000'
+  }
+} {268435456 40}
+do_test boundary2-4.13.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=40
+  }
+} {268435456 0000000010000000}
+do_test boundary2-4.13.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 268435456 ORDER BY a
+  }
+} {3 7 10 13 14 17 19 20 22 25 26 27 28 34 35 36 39 43 45 46 51 56 57}
+do_test boundary2-4.13.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 268435456 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 39 36 35 34 28 27 26 25 22 20 19 17 14 13 10 7 3}
+do_test boundary2-4.13.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 268435456 ORDER BY r
+  }
+} {20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.13.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 268435456 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20}
+do_test boundary2-4.13.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 268435456 ORDER BY x
+  }
+} {20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.13.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 268435456 ORDER BY a
+  }
+} {3 7 10 13 14 17 19 20 22 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary2-4.13.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 268435456 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 22 20 19 17 14 13 10 7 3}
+do_test boundary2-4.13.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 268435456 ORDER BY r
+  }
+} {40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.13.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 268435456 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40}
+do_test boundary2-4.13.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 268435456 ORDER BY x
+  }
+} {40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.13.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 268435456 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 15 16 18 21 23 24 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-4.13.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 268435456 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 24 23 21 18 16 15 12 11 9 8 6 5 4 2 1}
+do_test boundary2-4.13.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 268435456 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12}
+do_test boundary2-4.13.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 268435456 ORDER BY r DESC
+  }
+} {12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.13.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 268435456 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.13.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 268435456 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 15 16 18 21 23 24 29 30 31 32 33 37 38 40 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-4.13.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 268435456 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 40 38 37 33 32 31 30 29 24 23 21 18 16 15 12 11 9 8 6 5 4 2 1}
+do_test boundary2-4.13.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 268435456 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40}
+do_test boundary2-4.13.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 268435456 ORDER BY r DESC
+  }
+} {40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.13.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 268435456 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.14.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=-140737488355328
+  }
+} {-140737488355328 44 ffff800000000000}
+do_test boundary2-4.14.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='ffff800000000000'
+  }
+} {-140737488355328 44}
+do_test boundary2-4.14.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=44
+  }
+} {-140737488355328 ffff800000000000}
+do_test boundary2-4.14.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -140737488355328 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 47 48 49 50 51 52 53 54 56 57 58 59 60 61 62 63}
+do_test boundary2-4.14.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -140737488355328 ORDER BY a DESC
+  }
+} {63 62 61 60 59 58 57 56 54 53 52 51 50 49 48 47 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary2-4.14.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -140737488355328 ORDER BY r
+  }
+} {58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.14.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -140737488355328 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58}
+do_test boundary2-4.14.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -140737488355328 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.14.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -140737488355328 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 56 57 58 59 60 61 62 63}
+do_test boundary2-4.14.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -140737488355328 ORDER BY a DESC
+  }
+} {63 62 61 60 59 58 57 56 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary2-4.14.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -140737488355328 ORDER BY r
+  }
+} {44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.14.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -140737488355328 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44}
+do_test boundary2-4.14.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -140737488355328 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.14.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -140737488355328 ORDER BY a
+  }
+} {2 21 55 64}
+do_test boundary2-4.14.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -140737488355328 ORDER BY a DESC
+  }
+} {64 55 21 2}
+do_test boundary2-4.14.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -140737488355328 ORDER BY r
+  }
+} {55 2 64 21}
+do_test boundary2-4.14.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -140737488355328 ORDER BY r DESC
+  }
+} {21 64 2 55}
+do_test boundary2-4.14.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -140737488355328 ORDER BY x
+  }
+} {55 2 64 21}
+do_test boundary2-4.14.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -140737488355328 ORDER BY a
+  }
+} {2 21 44 55 64}
+do_test boundary2-4.14.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -140737488355328 ORDER BY a DESC
+  }
+} {64 55 44 21 2}
+do_test boundary2-4.14.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -140737488355328 ORDER BY r
+  }
+} {55 2 64 21 44}
+do_test boundary2-4.14.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -140737488355328 ORDER BY r DESC
+  }
+} {44 21 64 2 55}
+do_test boundary2-4.14.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -140737488355328 ORDER BY x
+  }
+} {55 2 64 21 44}
+do_test boundary2-4.15.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=1099511627776
+  }
+} {1099511627776 19 0000010000000000}
+do_test boundary2-4.15.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000010000000000'
+  }
+} {1099511627776 19}
+do_test boundary2-4.15.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=19
+  }
+} {1099511627776 0000010000000000}
+do_test boundary2-4.15.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 1099511627776 ORDER BY a
+  }
+} {3 7 10 13 17 25 26 27 28 34 43 45 56}
+do_test boundary2-4.15.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 1099511627776 ORDER BY a DESC
+  }
+} {56 45 43 34 28 27 26 25 17 13 10 7 3}
+do_test boundary2-4.15.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 1099511627776 ORDER BY r
+  }
+} {7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.15.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 1099511627776 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7}
+do_test boundary2-4.15.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 1099511627776 ORDER BY x
+  }
+} {7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.15.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 1099511627776 ORDER BY a
+  }
+} {3 7 10 13 17 19 25 26 27 28 34 43 45 56}
+do_test boundary2-4.15.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 1099511627776 ORDER BY a DESC
+  }
+} {56 45 43 34 28 27 26 25 19 17 13 10 7 3}
+do_test boundary2-4.15.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 1099511627776 ORDER BY r
+  }
+} {19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.15.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 1099511627776 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19}
+do_test boundary2-4.15.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 1099511627776 ORDER BY x
+  }
+} {19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.15.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 1099511627776 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 22 23 24 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 57 58 59 60 61 62 63 64}
+do_test boundary2-4.15.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 1099511627776 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 24 23 22 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary2-4.15.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 1099511627776 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57}
+do_test boundary2-4.15.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 1099511627776 ORDER BY r DESC
+  }
+} {57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.15.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 1099511627776 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.15.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 1099511627776 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 19 20 21 22 23 24 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 57 58 59 60 61 62 63 64}
+do_test boundary2-4.15.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 1099511627776 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 24 23 22 21 20 19 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary2-4.15.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 1099511627776 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19}
+do_test boundary2-4.15.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 1099511627776 ORDER BY r DESC
+  }
+} {19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.15.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 1099511627776 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.16.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 9223372036854775807 ORDER BY a
+  }
+} {}
+do_test boundary2-4.16.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 9223372036854775807 ORDER BY a DESC
+  }
+} {}
+do_test boundary2-4.16.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 9223372036854775807 ORDER BY r
+  }
+} {}
+do_test boundary2-4.16.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 9223372036854775807 ORDER BY r DESC
+  }
+} {}
+do_test boundary2-4.16.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 9223372036854775807 ORDER BY x
+  }
+} {}
+do_test boundary2-4.16.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 9223372036854775807 ORDER BY a
+  }
+} {3}
+do_test boundary2-4.16.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 9223372036854775807 ORDER BY a DESC
+  }
+} {3}
+do_test boundary2-4.16.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 9223372036854775807 ORDER BY r
+  }
+} {3}
+do_test boundary2-4.16.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 9223372036854775807 ORDER BY r DESC
+  }
+} {3}
+do_test boundary2-4.16.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 9223372036854775807 ORDER BY x
+  }
+} {3}
+do_test boundary2-4.16.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 9223372036854775807 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-4.16.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 9223372036854775807 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary2-4.16.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 9223372036854775807 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28}
+do_test boundary2-4.16.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 9223372036854775807 ORDER BY r DESC
+  }
+} {28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.16.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 9223372036854775807 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.16.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 9223372036854775807 ORDER BY a
+  }
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-4.16.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 9223372036854775807 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1}
+do_test boundary2-4.16.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 9223372036854775807 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.16.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 9223372036854775807 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.16.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 9223372036854775807 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.17.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=32768
+  }
+} {32768 50 0000000000008000}
+do_test boundary2-4.17.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000000000008000'
+  }
+} {32768 50}
+do_test boundary2-4.17.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=50
+  }
+} {32768 0000000000008000}
+do_test boundary2-4.17.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 32768 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 15 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 51 56 57 62}
+do_test boundary2-4.17.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 32768 ORDER BY a DESC
+  }
+} {62 57 56 51 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 15 14 13 12 10 9 7 6 3}
+do_test boundary2-4.17.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 32768 ORDER BY r
+  }
+} {48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.17.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 32768 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48}
+do_test boundary2-4.17.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 32768 ORDER BY x
+  }
+} {48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.17.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 32768 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 15 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 50 51 56 57 62}
+do_test boundary2-4.17.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 32768 ORDER BY a DESC
+  }
+} {62 57 56 51 50 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 15 14 13 12 10 9 7 6 3}
+do_test boundary2-4.17.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 32768 ORDER BY r
+  }
+} {50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.17.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 32768 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50}
+do_test boundary2-4.17.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 32768 ORDER BY x
+  }
+} {50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.17.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 32768 ORDER BY a
+  }
+} {1 2 4 5 8 11 16 21 23 29 30 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 61 63 64}
+do_test boundary2-4.17.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 32768 ORDER BY a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 30 29 23 21 16 11 8 5 4 2 1}
+do_test boundary2-4.17.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 32768 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23}
+do_test boundary2-4.17.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 32768 ORDER BY r DESC
+  }
+} {23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.17.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 32768 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.17.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 32768 ORDER BY a
+  }
+} {1 2 4 5 8 11 16 21 23 29 30 31 32 33 37 38 41 44 47 49 50 52 53 54 55 58 59 60 61 63 64}
+do_test boundary2-4.17.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 32768 ORDER BY a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 50 49 47 44 41 38 37 33 32 31 30 29 23 21 16 11 8 5 4 2 1}
+do_test boundary2-4.17.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 32768 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50}
+do_test boundary2-4.17.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 32768 ORDER BY r DESC
+  }
+} {50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.17.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 32768 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.18.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=-36028797018963968
+  }
+} {-36028797018963968 64 ff80000000000000}
+do_test boundary2-4.18.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='ff80000000000000'
+  }
+} {-36028797018963968 64}
+do_test boundary2-4.18.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=64
+  }
+} {-36028797018963968 ff80000000000000}
+do_test boundary2-4.18.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -36028797018963968 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 56 57 58 59 60 61 62 63}
+do_test boundary2-4.18.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -36028797018963968 ORDER BY a DESC
+  }
+} {63 62 61 60 59 58 57 56 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary2-4.18.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -36028797018963968 ORDER BY r
+  }
+} {21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.18.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -36028797018963968 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21}
+do_test boundary2-4.18.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -36028797018963968 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.18.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -36028797018963968 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 56 57 58 59 60 61 62 63 64}
+do_test boundary2-4.18.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -36028797018963968 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary2-4.18.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -36028797018963968 ORDER BY r
+  }
+} {64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.18.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -36028797018963968 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64}
+do_test boundary2-4.18.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -36028797018963968 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.18.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -36028797018963968 ORDER BY a
+  }
+} {2 55}
+do_test boundary2-4.18.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -36028797018963968 ORDER BY a DESC
+  }
+} {55 2}
+do_test boundary2-4.18.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -36028797018963968 ORDER BY r
+  }
+} {55 2}
+do_test boundary2-4.18.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -36028797018963968 ORDER BY r DESC
+  }
+} {2 55}
+do_test boundary2-4.18.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -36028797018963968 ORDER BY x
+  }
+} {55 2}
+do_test boundary2-4.18.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -36028797018963968 ORDER BY a
+  }
+} {2 55 64}
+do_test boundary2-4.18.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -36028797018963968 ORDER BY a DESC
+  }
+} {64 55 2}
+do_test boundary2-4.18.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -36028797018963968 ORDER BY r
+  }
+} {55 2 64}
+do_test boundary2-4.18.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -36028797018963968 ORDER BY r DESC
+  }
+} {64 2 55}
+do_test boundary2-4.18.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -36028797018963968 ORDER BY x
+  }
+} {55 2 64}
+do_test boundary2-4.19.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=65535
+  }
+} {65535 48 000000000000ffff}
+do_test boundary2-4.19.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='000000000000ffff'
+  }
+} {65535 48}
+do_test boundary2-4.19.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=48
+  }
+} {65535 000000000000ffff}
+do_test boundary2-4.19.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 65535 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 15 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 42 43 45 46 51 56 57 62}
+do_test boundary2-4.19.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 65535 ORDER BY a DESC
+  }
+} {62 57 56 51 46 45 43 42 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 15 14 13 12 10 9 7 6 3}
+do_test boundary2-4.19.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 65535 ORDER BY r
+  }
+} {62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.19.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 65535 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62}
+do_test boundary2-4.19.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 65535 ORDER BY x
+  }
+} {62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.19.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 65535 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 15 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 51 56 57 62}
+do_test boundary2-4.19.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 65535 ORDER BY a DESC
+  }
+} {62 57 56 51 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 15 14 13 12 10 9 7 6 3}
+do_test boundary2-4.19.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 65535 ORDER BY r
+  }
+} {48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.19.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 65535 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48}
+do_test boundary2-4.19.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 65535 ORDER BY x
+  }
+} {48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.19.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 65535 ORDER BY a
+  }
+} {1 2 4 5 8 11 16 21 23 29 30 31 32 33 37 38 41 44 47 49 50 52 53 54 55 58 59 60 61 63 64}
+do_test boundary2-4.19.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 65535 ORDER BY a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 50 49 47 44 41 38 37 33 32 31 30 29 23 21 16 11 8 5 4 2 1}
+do_test boundary2-4.19.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 65535 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50}
+do_test boundary2-4.19.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 65535 ORDER BY r DESC
+  }
+} {50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.19.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 65535 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.19.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 65535 ORDER BY a
+  }
+} {1 2 4 5 8 11 16 21 23 29 30 31 32 33 37 38 41 44 47 48 49 50 52 53 54 55 58 59 60 61 63 64}
+do_test boundary2-4.19.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 65535 ORDER BY a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 50 49 48 47 44 41 38 37 33 32 31 30 29 23 21 16 11 8 5 4 2 1}
+do_test boundary2-4.19.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 65535 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48}
+do_test boundary2-4.19.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 65535 ORDER BY r DESC
+  }
+} {48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.19.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 65535 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.20.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=4294967295
+  }
+} {4294967295 14 00000000ffffffff}
+do_test boundary2-4.20.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='00000000ffffffff'
+  }
+} {4294967295 14}
+do_test boundary2-4.20.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=14
+  }
+} {4294967295 00000000ffffffff}
+do_test boundary2-4.20.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4294967295 ORDER BY a
+  }
+} {3 7 10 13 17 19 22 25 26 27 28 34 35 36 39 43 45 46 56 57}
+do_test boundary2-4.20.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4294967295 ORDER BY a DESC
+  }
+} {57 56 46 45 43 39 36 35 34 28 27 26 25 22 19 17 13 10 7 3}
+do_test boundary2-4.20.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4294967295 ORDER BY r
+  }
+} {36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.20.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4294967295 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36}
+do_test boundary2-4.20.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4294967295 ORDER BY x
+  }
+} {36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.20.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4294967295 ORDER BY a
+  }
+} {3 7 10 13 14 17 19 22 25 26 27 28 34 35 36 39 43 45 46 56 57}
+do_test boundary2-4.20.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4294967295 ORDER BY a DESC
+  }
+} {57 56 46 45 43 39 36 35 34 28 27 26 25 22 19 17 14 13 10 7 3}
+do_test boundary2-4.20.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4294967295 ORDER BY r
+  }
+} {14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.20.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4294967295 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14}
+do_test boundary2-4.20.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4294967295 ORDER BY x
+  }
+} {14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.20.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4294967295 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 15 16 18 20 21 23 24 29 30 31 32 33 37 38 40 41 42 44 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-4.20.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4294967295 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 44 42 41 40 38 37 33 32 31 30 29 24 23 21 20 18 16 15 12 11 9 8 6 5 4 2 1}
+do_test boundary2-4.20.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4294967295 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51}
+do_test boundary2-4.20.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4294967295 ORDER BY r DESC
+  }
+} {51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.20.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4294967295 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.20.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4294967295 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 23 24 29 30 31 32 33 37 38 40 41 42 44 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-4.20.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4294967295 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 44 42 41 40 38 37 33 32 31 30 29 24 23 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary2-4.20.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4294967295 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14}
+do_test boundary2-4.20.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4294967295 ORDER BY r DESC
+  }
+} {14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.20.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4294967295 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.21.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=1099511627775
+  }
+} {1099511627775 57 000000ffffffffff}
+do_test boundary2-4.21.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='000000ffffffffff'
+  }
+} {1099511627775 57}
+do_test boundary2-4.21.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=57
+  }
+} {1099511627775 000000ffffffffff}
+do_test boundary2-4.21.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 1099511627775 ORDER BY a
+  }
+} {3 7 10 13 17 19 25 26 27 28 34 43 45 56}
+do_test boundary2-4.21.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 1099511627775 ORDER BY a DESC
+  }
+} {56 45 43 34 28 27 26 25 19 17 13 10 7 3}
+do_test boundary2-4.21.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 1099511627775 ORDER BY r
+  }
+} {19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.21.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 1099511627775 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19}
+do_test boundary2-4.21.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 1099511627775 ORDER BY x
+  }
+} {19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.21.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 1099511627775 ORDER BY a
+  }
+} {3 7 10 13 17 19 25 26 27 28 34 43 45 56 57}
+do_test boundary2-4.21.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 1099511627775 ORDER BY a DESC
+  }
+} {57 56 45 43 34 28 27 26 25 19 17 13 10 7 3}
+do_test boundary2-4.21.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 1099511627775 ORDER BY r
+  }
+} {57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.21.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 1099511627775 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57}
+do_test boundary2-4.21.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 1099511627775 ORDER BY x
+  }
+} {57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.21.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 1099511627775 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 22 23 24 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-4.21.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 1099511627775 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 24 23 22 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary2-4.21.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 1099511627775 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35}
+do_test boundary2-4.21.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 1099511627775 ORDER BY r DESC
+  }
+} {35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.21.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 1099511627775 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.21.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 1099511627775 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 22 23 24 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 57 58 59 60 61 62 63 64}
+do_test boundary2-4.21.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 1099511627775 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 24 23 22 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary2-4.21.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 1099511627775 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57}
+do_test boundary2-4.21.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 1099511627775 ORDER BY r DESC
+  }
+} {57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.21.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 1099511627775 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.22.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=-8388608
+  }
+} {-8388608 37 ffffffffff800000}
+do_test boundary2-4.22.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='ffffffffff800000'
+  }
+} {-8388608 37}
+do_test boundary2-4.22.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=37
+  }
+} {-8388608 ffffffffff800000}
+do_test boundary2-4.22.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -8388608 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary2-4.22.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -8388608 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-4.22.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -8388608 ORDER BY r
+  }
+} {29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.22.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -8388608 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29}
+do_test boundary2-4.22.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -8388608 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 29 32 54 53 52 33 38}
+do_test boundary2-4.22.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -8388608 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary2-4.22.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -8388608 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-4.22.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -8388608 ORDER BY r
+  }
+} {37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.22.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -8388608 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37}
+do_test boundary2-4.22.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -8388608 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 37 29 32 54 53 52 33 38}
+do_test boundary2-4.22.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -8388608 ORDER BY a
+  }
+} {1 2 11 21 44 47 55 58 63 64}
+do_test boundary2-4.22.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -8388608 ORDER BY a DESC
+  }
+} {64 63 58 55 47 44 21 11 2 1}
+do_test boundary2-4.22.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -8388608 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1}
+do_test boundary2-4.22.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -8388608 ORDER BY r DESC
+  }
+} {1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.22.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -8388608 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1}
+do_test boundary2-4.22.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -8388608 ORDER BY a
+  }
+} {1 2 11 21 37 44 47 55 58 63 64}
+do_test boundary2-4.22.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -8388608 ORDER BY a DESC
+  }
+} {64 63 58 55 47 44 37 21 11 2 1}
+do_test boundary2-4.22.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -8388608 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37}
+do_test boundary2-4.22.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -8388608 ORDER BY r DESC
+  }
+} {37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.22.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -8388608 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37}
+do_test boundary2-4.23.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=549755813888
+  }
+} {549755813888 35 0000008000000000}
+do_test boundary2-4.23.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000008000000000'
+  }
+} {549755813888 35}
+do_test boundary2-4.23.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=35
+  }
+} {549755813888 0000008000000000}
+do_test boundary2-4.23.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 549755813888 ORDER BY a
+  }
+} {3 7 10 13 17 19 25 26 27 28 34 43 45 56 57}
+do_test boundary2-4.23.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 549755813888 ORDER BY a DESC
+  }
+} {57 56 45 43 34 28 27 26 25 19 17 13 10 7 3}
+do_test boundary2-4.23.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 549755813888 ORDER BY r
+  }
+} {57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.23.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 549755813888 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57}
+do_test boundary2-4.23.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 549755813888 ORDER BY x
+  }
+} {57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.23.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 549755813888 ORDER BY a
+  }
+} {3 7 10 13 17 19 25 26 27 28 34 35 43 45 56 57}
+do_test boundary2-4.23.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 549755813888 ORDER BY a DESC
+  }
+} {57 56 45 43 35 34 28 27 26 25 19 17 13 10 7 3}
+do_test boundary2-4.23.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 549755813888 ORDER BY r
+  }
+} {35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.23.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 549755813888 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35}
+do_test boundary2-4.23.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 549755813888 ORDER BY x
+  }
+} {35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.23.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 549755813888 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 22 23 24 29 30 31 32 33 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-4.23.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 549755813888 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 33 32 31 30 29 24 23 22 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary2-4.23.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 549755813888 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46}
+do_test boundary2-4.23.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 549755813888 ORDER BY r DESC
+  }
+} {46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.23.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 549755813888 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.23.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 549755813888 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 22 23 24 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-4.23.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 549755813888 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 24 23 22 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary2-4.23.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 549755813888 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35}
+do_test boundary2-4.23.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 549755813888 ORDER BY r DESC
+  }
+} {35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.23.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 549755813888 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.24.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=8388607
+  }
+} {8388607 18 00000000007fffff}
+do_test boundary2-4.24.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='00000000007fffff'
+  }
+} {8388607 18}
+do_test boundary2-4.24.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=18
+  }
+} {8388607 00000000007fffff}
+do_test boundary2-4.24.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 8388607 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 17 19 20 22 24 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary2-4.24.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 8388607 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 24 22 20 19 17 14 13 12 10 9 7 6 3}
+do_test boundary2-4.24.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 8388607 ORDER BY r
+  }
+} {24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.24.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 8388607 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24}
+do_test boundary2-4.24.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 8388607 ORDER BY x
+  }
+} {24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.24.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 8388607 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary2-4.24.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 8388607 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 14 13 12 10 9 7 6 3}
+do_test boundary2-4.24.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 8388607 ORDER BY r
+  }
+} {18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.24.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 8388607 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18}
+do_test boundary2-4.24.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 8388607 ORDER BY x
+  }
+} {18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.24.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 8388607 ORDER BY a
+  }
+} {1 2 4 5 8 11 15 16 21 23 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-4.24.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 8388607 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 23 21 16 15 11 8 5 4 2 1}
+do_test boundary2-4.24.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 8388607 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42}
+do_test boundary2-4.24.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 8388607 ORDER BY r DESC
+  }
+} {42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.24.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 8388607 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.24.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 8388607 ORDER BY a
+  }
+} {1 2 4 5 8 11 15 16 18 21 23 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-4.24.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 8388607 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 23 21 18 16 15 11 8 5 4 2 1}
+do_test boundary2-4.24.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 8388607 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18}
+do_test boundary2-4.24.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 8388607 ORDER BY r DESC
+  }
+} {18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.24.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 8388607 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.25.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=-3
+  }
+} {-3 52 fffffffffffffffd}
+do_test boundary2-4.25.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='fffffffffffffffd'
+  }
+} {-3 52}
+do_test boundary2-4.25.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=52
+  }
+} {-3 fffffffffffffffd}
+do_test boundary2-4.25.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -3 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 56 57 59 60 61 62}
+do_test boundary2-4.25.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -3 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-4.25.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -3 ORDER BY r
+  }
+} {33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.25.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -3 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33}
+do_test boundary2-4.25.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -3 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 33 38}
+do_test boundary2-4.25.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -3 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 52 56 57 59 60 61 62}
+do_test boundary2-4.25.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -3 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 52 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-4.25.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -3 ORDER BY r
+  }
+} {52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.25.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -3 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52}
+do_test boundary2-4.25.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -3 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 52 33 38}
+do_test boundary2-4.25.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -3 ORDER BY a
+  }
+} {1 2 11 21 29 32 37 44 47 53 54 55 58 63 64}
+do_test boundary2-4.25.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -3 ORDER BY a DESC
+  }
+} {64 63 58 55 54 53 47 44 37 32 29 21 11 2 1}
+do_test boundary2-4.25.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -3 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53}
+do_test boundary2-4.25.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -3 ORDER BY r DESC
+  }
+} {53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.25.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -3 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53}
+do_test boundary2-4.25.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -3 ORDER BY a
+  }
+} {1 2 11 21 29 32 37 44 47 52 53 54 55 58 63 64}
+do_test boundary2-4.25.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -3 ORDER BY a DESC
+  }
+} {64 63 58 55 54 53 52 47 44 37 32 29 21 11 2 1}
+do_test boundary2-4.25.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -3 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52}
+do_test boundary2-4.25.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -3 ORDER BY r DESC
+  }
+} {52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.25.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -3 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52}
+do_test boundary2-4.26.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=0
+  }
+} {0 59 0000000000000000}
+do_test boundary2-4.26.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000000000000000'
+  }
+} {0 59}
+do_test boundary2-4.26.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=59
+  }
+} {0 0000000000000000}
+do_test boundary2-4.26.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 0 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 39 40 41 42 43 45 46 48 49 50 51 56 57 60 61 62}
+do_test boundary2-4.26.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 0 ORDER BY a DESC
+  }
+} {62 61 60 57 56 51 50 49 48 46 45 43 42 41 40 39 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-4.26.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 0 ORDER BY r
+  }
+} {60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.26.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 0 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60}
+do_test boundary2-4.26.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 0 ORDER BY x
+  }
+} {60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.26.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 0 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 39 40 41 42 43 45 46 48 49 50 51 56 57 59 60 61 62}
+do_test boundary2-4.26.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 0 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 51 50 49 48 46 45 43 42 41 40 39 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-4.26.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 0 ORDER BY r
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.26.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 0 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59}
+do_test boundary2-4.26.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 0 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.26.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 0 ORDER BY a
+  }
+} {1 2 11 21 29 32 33 37 38 44 47 52 53 54 55 58 63 64}
+do_test boundary2-4.26.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 0 ORDER BY a DESC
+  }
+} {64 63 58 55 54 53 52 47 44 38 37 33 32 29 21 11 2 1}
+do_test boundary2-4.26.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 0 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.26.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 0 ORDER BY r DESC
+  }
+} {38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.26.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 0 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.26.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 0 ORDER BY a
+  }
+} {1 2 11 21 29 32 33 37 38 44 47 52 53 54 55 58 59 63 64}
+do_test boundary2-4.26.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 0 ORDER BY a DESC
+  }
+} {64 63 59 58 55 54 53 52 47 44 38 37 33 32 29 21 11 2 1}
+do_test boundary2-4.26.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 0 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59}
+do_test boundary2-4.26.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 0 ORDER BY r DESC
+  }
+} {59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.26.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 0 ORDER BY x
+  }
+} {59 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.27.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=-1
+  }
+} {-1 38 ffffffffffffffff}
+do_test boundary2-4.27.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='ffffffffffffffff'
+  }
+} {-1 38}
+do_test boundary2-4.27.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=38
+  }
+} {-1 ffffffffffffffff}
+do_test boundary2-4.27.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -1 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 39 40 41 42 43 45 46 48 49 50 51 56 57 59 60 61 62}
+do_test boundary2-4.27.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -1 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 51 50 49 48 46 45 43 42 41 40 39 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-4.27.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -1 ORDER BY r
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.27.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -1 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59}
+do_test boundary2-4.27.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -1 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.27.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -1 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 56 57 59 60 61 62}
+do_test boundary2-4.27.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -1 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-4.27.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -1 ORDER BY r
+  }
+} {38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.27.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -1 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38}
+do_test boundary2-4.27.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -1 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 38}
+do_test boundary2-4.27.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -1 ORDER BY a
+  }
+} {1 2 11 21 29 32 33 37 44 47 52 53 54 55 58 63 64}
+do_test boundary2-4.27.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -1 ORDER BY a DESC
+  }
+} {64 63 58 55 54 53 52 47 44 37 33 32 29 21 11 2 1}
+do_test boundary2-4.27.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -1 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33}
+do_test boundary2-4.27.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -1 ORDER BY r DESC
+  }
+} {33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.27.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -1 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33}
+do_test boundary2-4.27.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -1 ORDER BY a
+  }
+} {1 2 11 21 29 32 33 37 38 44 47 52 53 54 55 58 63 64}
+do_test boundary2-4.27.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -1 ORDER BY a DESC
+  }
+} {64 63 58 55 54 53 52 47 44 38 37 33 32 29 21 11 2 1}
+do_test boundary2-4.27.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -1 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.27.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -1 ORDER BY r DESC
+  }
+} {38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.27.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -1 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.28.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=-2
+  }
+} {-2 33 fffffffffffffffe}
+do_test boundary2-4.28.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='fffffffffffffffe'
+  }
+} {-2 33}
+do_test boundary2-4.28.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=33
+  }
+} {-2 fffffffffffffffe}
+do_test boundary2-4.28.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -2 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 56 57 59 60 61 62}
+do_test boundary2-4.28.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -2 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-4.28.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -2 ORDER BY r
+  }
+} {38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.28.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -2 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38}
+do_test boundary2-4.28.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -2 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 38}
+do_test boundary2-4.28.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -2 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 56 57 59 60 61 62}
+do_test boundary2-4.28.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -2 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-4.28.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -2 ORDER BY r
+  }
+} {33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.28.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -2 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33}
+do_test boundary2-4.28.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -2 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 33 38}
+do_test boundary2-4.28.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -2 ORDER BY a
+  }
+} {1 2 11 21 29 32 37 44 47 52 53 54 55 58 63 64}
+do_test boundary2-4.28.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -2 ORDER BY a DESC
+  }
+} {64 63 58 55 54 53 52 47 44 37 32 29 21 11 2 1}
+do_test boundary2-4.28.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -2 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52}
+do_test boundary2-4.28.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -2 ORDER BY r DESC
+  }
+} {52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.28.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -2 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52}
+do_test boundary2-4.28.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -2 ORDER BY a
+  }
+} {1 2 11 21 29 32 33 37 44 47 52 53 54 55 58 63 64}
+do_test boundary2-4.28.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -2 ORDER BY a DESC
+  }
+} {64 63 58 55 54 53 52 47 44 37 33 32 29 21 11 2 1}
+do_test boundary2-4.28.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -2 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33}
+do_test boundary2-4.28.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -2 ORDER BY r DESC
+  }
+} {33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.28.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -2 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33}
+do_test boundary2-4.29.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=2097152
+  }
+} {2097152 42 0000000000200000}
+do_test boundary2-4.29.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000000000200000'
+  }
+} {2097152 42}
+do_test boundary2-4.29.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=42
+  }
+} {2097152 0000000000200000}
+do_test boundary2-4.29.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2097152 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary2-4.29.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2097152 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 14 13 12 10 9 7 6 3}
+do_test boundary2-4.29.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2097152 ORDER BY r
+  }
+} {18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.29.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2097152 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18}
+do_test boundary2-4.29.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2097152 ORDER BY x
+  }
+} {18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.29.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2097152 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 42 43 45 46 51 56 57}
+do_test boundary2-4.29.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2097152 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 42 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 14 13 12 10 9 7 6 3}
+do_test boundary2-4.29.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2097152 ORDER BY r
+  }
+} {42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.29.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2097152 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42}
+do_test boundary2-4.29.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2097152 ORDER BY x
+  }
+} {42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.29.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2097152 ORDER BY a
+  }
+} {1 2 4 5 8 11 15 16 21 23 29 30 31 32 33 37 38 41 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-4.29.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2097152 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 41 38 37 33 32 31 30 29 23 21 16 15 11 8 5 4 2 1}
+do_test boundary2-4.29.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2097152 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15}
+do_test boundary2-4.29.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2097152 ORDER BY r DESC
+  }
+} {15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.29.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2097152 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.29.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2097152 ORDER BY a
+  }
+} {1 2 4 5 8 11 15 16 21 23 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-4.29.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2097152 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 23 21 16 15 11 8 5 4 2 1}
+do_test boundary2-4.29.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2097152 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42}
+do_test boundary2-4.29.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2097152 ORDER BY r DESC
+  }
+} {42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.29.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2097152 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.30.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=128
+  }
+} {128 49 0000000000000080}
+do_test boundary2-4.30.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000000000000080'
+  }
+} {128 49}
+do_test boundary2-4.30.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=49
+  }
+} {128 0000000000000080}
+do_test boundary2-4.30.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 128 ORDER BY a
+  }
+} {3 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 34 35 36 39 40 42 43 45 46 48 50 51 56 57 61 62}
+do_test boundary2-4.30.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 128 ORDER BY a DESC
+  }
+} {62 61 57 56 51 50 48 46 45 43 42 40 39 36 35 34 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 3}
+do_test boundary2-4.30.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 128 ORDER BY r
+  }
+} {30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.30.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 128 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30}
+do_test boundary2-4.30.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 128 ORDER BY x
+  }
+} {30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.30.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 128 ORDER BY a
+  }
+} {3 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 34 35 36 39 40 42 43 45 46 48 49 50 51 56 57 61 62}
+do_test boundary2-4.30.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 128 ORDER BY a DESC
+  }
+} {62 61 57 56 51 50 49 48 46 45 43 42 40 39 36 35 34 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 3}
+do_test boundary2-4.30.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 128 ORDER BY r
+  }
+} {49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.30.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 128 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49}
+do_test boundary2-4.30.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 128 ORDER BY x
+  }
+} {49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.30.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 128 ORDER BY a
+  }
+} {1 2 4 5 11 21 29 31 32 33 37 38 41 44 47 52 53 54 55 58 59 60 63 64}
+do_test boundary2-4.30.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 128 ORDER BY a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 47 44 41 38 37 33 32 31 29 21 11 5 4 2 1}
+do_test boundary2-4.30.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 128 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4}
+do_test boundary2-4.30.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 128 ORDER BY r DESC
+  }
+} {4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.30.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 128 ORDER BY x
+  }
+} {59 60 41 5 31 4 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.30.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 128 ORDER BY a
+  }
+} {1 2 4 5 11 21 29 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 63 64}
+do_test boundary2-4.30.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 128 ORDER BY a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 29 21 11 5 4 2 1}
+do_test boundary2-4.30.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 128 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49}
+do_test boundary2-4.30.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 128 ORDER BY r DESC
+  }
+} {49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.30.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 128 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.31.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=255
+  }
+} {255 30 00000000000000ff}
+do_test boundary2-4.31.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='00000000000000ff'
+  }
+} {255 30}
+do_test boundary2-4.31.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=30
+  }
+} {255 00000000000000ff}
+do_test boundary2-4.31.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 255 ORDER BY a
+  }
+} {3 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 50 51 56 57 61 62}
+do_test boundary2-4.31.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 255 ORDER BY a DESC
+  }
+} {62 61 57 56 51 50 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 3}
+do_test boundary2-4.31.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 255 ORDER BY r
+  }
+} {61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.31.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 255 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61}
+do_test boundary2-4.31.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 255 ORDER BY x
+  }
+} {61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.31.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 255 ORDER BY a
+  }
+} {3 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 34 35 36 39 40 42 43 45 46 48 50 51 56 57 61 62}
+do_test boundary2-4.31.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 255 ORDER BY a DESC
+  }
+} {62 61 57 56 51 50 48 46 45 43 42 40 39 36 35 34 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 3}
+do_test boundary2-4.31.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 255 ORDER BY r
+  }
+} {30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.31.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 255 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30}
+do_test boundary2-4.31.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 255 ORDER BY x
+  }
+} {30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.31.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 255 ORDER BY a
+  }
+} {1 2 4 5 11 21 29 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 63 64}
+do_test boundary2-4.31.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 255 ORDER BY a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 29 21 11 5 4 2 1}
+do_test boundary2-4.31.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 255 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49}
+do_test boundary2-4.31.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 255 ORDER BY r DESC
+  }
+} {49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.31.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 255 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.31.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 255 ORDER BY a
+  }
+} {1 2 4 5 11 21 29 30 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 63 64}
+do_test boundary2-4.31.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 255 ORDER BY a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 30 29 21 11 5 4 2 1}
+do_test boundary2-4.31.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 255 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30}
+do_test boundary2-4.31.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 255 ORDER BY r DESC
+  }
+} {30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.31.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 255 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.32.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=-2147483648
+  }
+} {-2147483648 11 ffffffff80000000}
+do_test boundary2-4.32.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='ffffffff80000000'
+  }
+} {-2147483648 11}
+do_test boundary2-4.32.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=11
+  }
+} {-2147483648 ffffffff80000000}
+do_test boundary2-4.32.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -2147483648 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary2-4.32.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -2147483648 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3 1}
+do_test boundary2-4.32.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -2147483648 ORDER BY r
+  }
+} {1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.32.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -2147483648 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1}
+do_test boundary2-4.32.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -2147483648 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.32.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -2147483648 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary2-4.32.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -2147483648 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary2-4.32.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -2147483648 ORDER BY r
+  }
+} {11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.32.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -2147483648 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11}
+do_test boundary2-4.32.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -2147483648 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.32.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -2147483648 ORDER BY a
+  }
+} {2 21 44 47 55 58 63 64}
+do_test boundary2-4.32.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -2147483648 ORDER BY a DESC
+  }
+} {64 63 58 55 47 44 21 2}
+do_test boundary2-4.32.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -2147483648 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47}
+do_test boundary2-4.32.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -2147483648 ORDER BY r DESC
+  }
+} {47 63 58 44 21 64 2 55}
+do_test boundary2-4.32.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -2147483648 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47}
+do_test boundary2-4.32.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -2147483648 ORDER BY a
+  }
+} {2 11 21 44 47 55 58 63 64}
+do_test boundary2-4.32.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -2147483648 ORDER BY a DESC
+  }
+} {64 63 58 55 47 44 21 11 2}
+do_test boundary2-4.32.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -2147483648 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11}
+do_test boundary2-4.32.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -2147483648 ORDER BY r DESC
+  }
+} {11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.32.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -2147483648 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11}
+do_test boundary2-4.33.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=34359738367
+  }
+} {34359738367 39 00000007ffffffff}
+do_test boundary2-4.33.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='00000007ffffffff'
+  }
+} {34359738367 39}
+do_test boundary2-4.33.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=39
+  }
+} {34359738367 00000007ffffffff}
+do_test boundary2-4.33.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 34359738367 ORDER BY a
+  }
+} {3 7 10 13 17 19 22 25 26 27 28 34 35 43 45 46 56 57}
+do_test boundary2-4.33.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 34359738367 ORDER BY a DESC
+  }
+} {57 56 46 45 43 35 34 28 27 26 25 22 19 17 13 10 7 3}
+do_test boundary2-4.33.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 34359738367 ORDER BY r
+  }
+} {22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.33.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 34359738367 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22}
+do_test boundary2-4.33.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 34359738367 ORDER BY x
+  }
+} {22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.33.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 34359738367 ORDER BY a
+  }
+} {3 7 10 13 17 19 22 25 26 27 28 34 35 39 43 45 46 56 57}
+do_test boundary2-4.33.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 34359738367 ORDER BY a DESC
+  }
+} {57 56 46 45 43 39 35 34 28 27 26 25 22 19 17 13 10 7 3}
+do_test boundary2-4.33.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 34359738367 ORDER BY r
+  }
+} {39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.33.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 34359738367 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39}
+do_test boundary2-4.33.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 34359738367 ORDER BY x
+  }
+} {39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.33.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 34359738367 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 23 24 29 30 31 32 33 36 37 38 40 41 42 44 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-4.33.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 34359738367 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 44 42 41 40 38 37 36 33 32 31 30 29 24 23 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary2-4.33.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 34359738367 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36}
+do_test boundary2-4.33.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 34359738367 ORDER BY r DESC
+  }
+} {36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.33.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 34359738367 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.33.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 34359738367 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 23 24 29 30 31 32 33 36 37 38 39 40 41 42 44 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-4.33.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 34359738367 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 44 42 41 40 39 38 37 36 33 32 31 30 29 24 23 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary2-4.33.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 34359738367 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39}
+do_test boundary2-4.33.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 34359738367 ORDER BY r DESC
+  }
+} {39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.33.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 34359738367 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.34.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=-549755813889
+  }
+} {-549755813889 58 ffffff7fffffffff}
+do_test boundary2-4.34.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='ffffff7fffffffff'
+  }
+} {-549755813889 58}
+do_test boundary2-4.34.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=58
+  }
+} {-549755813889 ffffff7fffffffff}
+do_test boundary2-4.34.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -549755813889 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 47 48 49 50 51 52 53 54 56 57 59 60 61 62 63}
+do_test boundary2-4.34.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -549755813889 ORDER BY a DESC
+  }
+} {63 62 61 60 59 57 56 54 53 52 51 50 49 48 47 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary2-4.34.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -549755813889 ORDER BY r
+  }
+} {63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.34.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -549755813889 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63}
+do_test boundary2-4.34.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -549755813889 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.34.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -549755813889 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 47 48 49 50 51 52 53 54 56 57 58 59 60 61 62 63}
+do_test boundary2-4.34.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -549755813889 ORDER BY a DESC
+  }
+} {63 62 61 60 59 58 57 56 54 53 52 51 50 49 48 47 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary2-4.34.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -549755813889 ORDER BY r
+  }
+} {58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.34.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -549755813889 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58}
+do_test boundary2-4.34.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -549755813889 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.34.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -549755813889 ORDER BY a
+  }
+} {2 21 44 55 64}
+do_test boundary2-4.34.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -549755813889 ORDER BY a DESC
+  }
+} {64 55 44 21 2}
+do_test boundary2-4.34.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -549755813889 ORDER BY r
+  }
+} {55 2 64 21 44}
+do_test boundary2-4.34.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -549755813889 ORDER BY r DESC
+  }
+} {44 21 64 2 55}
+do_test boundary2-4.34.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -549755813889 ORDER BY x
+  }
+} {55 2 64 21 44}
+do_test boundary2-4.34.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -549755813889 ORDER BY a
+  }
+} {2 21 44 55 58 64}
+do_test boundary2-4.34.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -549755813889 ORDER BY a DESC
+  }
+} {64 58 55 44 21 2}
+do_test boundary2-4.34.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -549755813889 ORDER BY r
+  }
+} {55 2 64 21 44 58}
+do_test boundary2-4.34.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -549755813889 ORDER BY r DESC
+  }
+} {58 44 21 64 2 55}
+do_test boundary2-4.34.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -549755813889 ORDER BY x
+  }
+} {55 2 64 21 44 58}
+do_test boundary2-4.35.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=-32768
+  }
+} {-32768 32 ffffffffffff8000}
+do_test boundary2-4.35.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='ffffffffffff8000'
+  }
+} {-32768 32}
+do_test boundary2-4.35.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=32
+  }
+} {-32768 ffffffffffff8000}
+do_test boundary2-4.35.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -32768 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary2-4.35.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -32768 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-4.35.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -32768 ORDER BY r
+  }
+} {54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.35.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -32768 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54}
+do_test boundary2-4.35.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -32768 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 54 53 52 33 38}
+do_test boundary2-4.35.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -32768 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 32 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary2-4.35.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -32768 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 32 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-4.35.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -32768 ORDER BY r
+  }
+} {32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.35.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -32768 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32}
+do_test boundary2-4.35.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -32768 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 32 54 53 52 33 38}
+do_test boundary2-4.35.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -32768 ORDER BY a
+  }
+} {1 2 11 21 29 37 44 47 55 58 63 64}
+do_test boundary2-4.35.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -32768 ORDER BY a DESC
+  }
+} {64 63 58 55 47 44 37 29 21 11 2 1}
+do_test boundary2-4.35.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -32768 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29}
+do_test boundary2-4.35.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -32768 ORDER BY r DESC
+  }
+} {29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.35.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -32768 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29}
+do_test boundary2-4.35.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -32768 ORDER BY a
+  }
+} {1 2 11 21 29 32 37 44 47 55 58 63 64}
+do_test boundary2-4.35.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -32768 ORDER BY a DESC
+  }
+} {64 63 58 55 47 44 37 32 29 21 11 2 1}
+do_test boundary2-4.35.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -32768 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32}
+do_test boundary2-4.35.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -32768 ORDER BY r DESC
+  }
+} {32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.35.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -32768 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32}
+do_test boundary2-4.36.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=2147483647
+  }
+} {2147483647 20 000000007fffffff}
+do_test boundary2-4.36.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='000000007fffffff'
+  }
+} {2147483647 20}
+do_test boundary2-4.36.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=20
+  }
+} {2147483647 000000007fffffff}
+do_test boundary2-4.36.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2147483647 ORDER BY a
+  }
+} {3 7 10 13 14 17 19 22 25 26 27 28 34 35 36 39 43 45 46 51 56 57}
+do_test boundary2-4.36.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2147483647 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 39 36 35 34 28 27 26 25 22 19 17 14 13 10 7 3}
+do_test boundary2-4.36.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2147483647 ORDER BY r
+  }
+} {51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.36.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2147483647 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51}
+do_test boundary2-4.36.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2147483647 ORDER BY x
+  }
+} {51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.36.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2147483647 ORDER BY a
+  }
+} {3 7 10 13 14 17 19 20 22 25 26 27 28 34 35 36 39 43 45 46 51 56 57}
+do_test boundary2-4.36.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2147483647 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 39 36 35 34 28 27 26 25 22 20 19 17 14 13 10 7 3}
+do_test boundary2-4.36.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2147483647 ORDER BY r
+  }
+} {20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.36.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2147483647 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20}
+do_test boundary2-4.36.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2147483647 ORDER BY x
+  }
+} {20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.36.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2147483647 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 15 16 18 21 23 24 29 30 31 32 33 37 38 40 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-4.36.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2147483647 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 40 38 37 33 32 31 30 29 24 23 21 18 16 15 12 11 9 8 6 5 4 2 1}
+do_test boundary2-4.36.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2147483647 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40}
+do_test boundary2-4.36.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2147483647 ORDER BY r DESC
+  }
+} {40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.36.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2147483647 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.36.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2147483647 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 15 16 18 20 21 23 24 29 30 31 32 33 37 38 40 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-4.36.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2147483647 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 40 38 37 33 32 31 30 29 24 23 21 20 18 16 15 12 11 9 8 6 5 4 2 1}
+do_test boundary2-4.36.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2147483647 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20}
+do_test boundary2-4.36.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2147483647 ORDER BY r DESC
+  }
+} {20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.36.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2147483647 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.37.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=-129
+  }
+} {-129 54 ffffffffffffff7f}
+do_test boundary2-4.37.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='ffffffffffffff7f'
+  }
+} {-129 54}
+do_test boundary2-4.37.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=54
+  }
+} {-129 ffffffffffffff7f}
+do_test boundary2-4.37.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -129 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 52 53 56 57 59 60 61 62}
+do_test boundary2-4.37.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -129 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 53 52 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-4.37.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -129 ORDER BY r
+  }
+} {53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.37.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -129 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53}
+do_test boundary2-4.37.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -129 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 53 52 33 38}
+do_test boundary2-4.37.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -129 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary2-4.37.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -129 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-4.37.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -129 ORDER BY r
+  }
+} {54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.37.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -129 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54}
+do_test boundary2-4.37.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -129 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 54 53 52 33 38}
+do_test boundary2-4.37.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -129 ORDER BY a
+  }
+} {1 2 11 21 29 32 37 44 47 55 58 63 64}
+do_test boundary2-4.37.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -129 ORDER BY a DESC
+  }
+} {64 63 58 55 47 44 37 32 29 21 11 2 1}
+do_test boundary2-4.37.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -129 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32}
+do_test boundary2-4.37.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -129 ORDER BY r DESC
+  }
+} {32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.37.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -129 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32}
+do_test boundary2-4.37.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -129 ORDER BY a
+  }
+} {1 2 11 21 29 32 37 44 47 54 55 58 63 64}
+do_test boundary2-4.37.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -129 ORDER BY a DESC
+  }
+} {64 63 58 55 54 47 44 37 32 29 21 11 2 1}
+do_test boundary2-4.37.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -129 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54}
+do_test boundary2-4.37.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -129 ORDER BY r DESC
+  }
+} {54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.37.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -129 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54}
+do_test boundary2-4.38.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=-128
+  }
+} {-128 53 ffffffffffffff80}
+do_test boundary2-4.38.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='ffffffffffffff80'
+  }
+} {-128 53}
+do_test boundary2-4.38.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=53
+  }
+} {-128 ffffffffffffff80}
+do_test boundary2-4.38.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -128 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 52 56 57 59 60 61 62}
+do_test boundary2-4.38.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -128 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 52 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-4.38.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -128 ORDER BY r
+  }
+} {52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.38.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -128 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52}
+do_test boundary2-4.38.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -128 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 52 33 38}
+do_test boundary2-4.38.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -128 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 52 53 56 57 59 60 61 62}
+do_test boundary2-4.38.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -128 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 53 52 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-4.38.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -128 ORDER BY r
+  }
+} {53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.38.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -128 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53}
+do_test boundary2-4.38.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -128 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 53 52 33 38}
+do_test boundary2-4.38.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -128 ORDER BY a
+  }
+} {1 2 11 21 29 32 37 44 47 54 55 58 63 64}
+do_test boundary2-4.38.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -128 ORDER BY a DESC
+  }
+} {64 63 58 55 54 47 44 37 32 29 21 11 2 1}
+do_test boundary2-4.38.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -128 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54}
+do_test boundary2-4.38.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -128 ORDER BY r DESC
+  }
+} {54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.38.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -128 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54}
+do_test boundary2-4.38.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -128 ORDER BY a
+  }
+} {1 2 11 21 29 32 37 44 47 53 54 55 58 63 64}
+do_test boundary2-4.38.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -128 ORDER BY a DESC
+  }
+} {64 63 58 55 54 53 47 44 37 32 29 21 11 2 1}
+do_test boundary2-4.38.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -128 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53}
+do_test boundary2-4.38.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -128 ORDER BY r DESC
+  }
+} {53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.38.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -128 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53}
+do_test boundary2-4.39.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=72057594037927936
+  }
+} {72057594037927936 28 0100000000000000}
+do_test boundary2-4.39.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0100000000000000'
+  }
+} {72057594037927936 28}
+do_test boundary2-4.39.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=28
+  }
+} {72057594037927936 0100000000000000}
+do_test boundary2-4.39.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 72057594037927936 ORDER BY a
+  }
+} {3}
+do_test boundary2-4.39.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 72057594037927936 ORDER BY a DESC
+  }
+} {3}
+do_test boundary2-4.39.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 72057594037927936 ORDER BY r
+  }
+} {3}
+do_test boundary2-4.39.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 72057594037927936 ORDER BY r DESC
+  }
+} {3}
+do_test boundary2-4.39.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 72057594037927936 ORDER BY x
+  }
+} {3}
+do_test boundary2-4.39.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 72057594037927936 ORDER BY a
+  }
+} {3 28}
+do_test boundary2-4.39.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 72057594037927936 ORDER BY a DESC
+  }
+} {28 3}
+do_test boundary2-4.39.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 72057594037927936 ORDER BY r
+  }
+} {28 3}
+do_test boundary2-4.39.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 72057594037927936 ORDER BY r DESC
+  }
+} {3 28}
+do_test boundary2-4.39.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 72057594037927936 ORDER BY x
+  }
+} {28 3}
+do_test boundary2-4.39.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 72057594037927936 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-4.39.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 72057594037927936 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary2-4.39.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 72057594037927936 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17}
+do_test boundary2-4.39.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 72057594037927936 ORDER BY r DESC
+  }
+} {17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.39.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 72057594037927936 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.39.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 72057594037927936 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-4.39.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 72057594037927936 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary2-4.39.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 72057594037927936 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28}
+do_test boundary2-4.39.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 72057594037927936 ORDER BY r DESC
+  }
+} {28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.39.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 72057594037927936 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.40.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=2147483648
+  }
+} {2147483648 51 0000000080000000}
+do_test boundary2-4.40.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000000080000000'
+  }
+} {2147483648 51}
+do_test boundary2-4.40.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=51
+  }
+} {2147483648 0000000080000000}
+do_test boundary2-4.40.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2147483648 ORDER BY a
+  }
+} {3 7 10 13 14 17 19 22 25 26 27 28 34 35 36 39 43 45 46 56 57}
+do_test boundary2-4.40.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2147483648 ORDER BY a DESC
+  }
+} {57 56 46 45 43 39 36 35 34 28 27 26 25 22 19 17 14 13 10 7 3}
+do_test boundary2-4.40.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2147483648 ORDER BY r
+  }
+} {14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.40.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2147483648 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14}
+do_test boundary2-4.40.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2147483648 ORDER BY x
+  }
+} {14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.40.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2147483648 ORDER BY a
+  }
+} {3 7 10 13 14 17 19 22 25 26 27 28 34 35 36 39 43 45 46 51 56 57}
+do_test boundary2-4.40.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2147483648 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 39 36 35 34 28 27 26 25 22 19 17 14 13 10 7 3}
+do_test boundary2-4.40.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2147483648 ORDER BY r
+  }
+} {51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.40.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2147483648 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51}
+do_test boundary2-4.40.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2147483648 ORDER BY x
+  }
+} {51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.40.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2147483648 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 15 16 18 20 21 23 24 29 30 31 32 33 37 38 40 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-4.40.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2147483648 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 40 38 37 33 32 31 30 29 24 23 21 20 18 16 15 12 11 9 8 6 5 4 2 1}
+do_test boundary2-4.40.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2147483648 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20}
+do_test boundary2-4.40.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2147483648 ORDER BY r DESC
+  }
+} {20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.40.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2147483648 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.40.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2147483648 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 15 16 18 20 21 23 24 29 30 31 32 33 37 38 40 41 42 44 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-4.40.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2147483648 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 44 42 41 40 38 37 33 32 31 30 29 24 23 21 20 18 16 15 12 11 9 8 6 5 4 2 1}
+do_test boundary2-4.40.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2147483648 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51}
+do_test boundary2-4.40.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2147483648 ORDER BY r DESC
+  }
+} {51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.40.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2147483648 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.41.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=549755813887
+  }
+} {549755813887 46 0000007fffffffff}
+do_test boundary2-4.41.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000007fffffffff'
+  }
+} {549755813887 46}
+do_test boundary2-4.41.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=46
+  }
+} {549755813887 0000007fffffffff}
+do_test boundary2-4.41.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 549755813887 ORDER BY a
+  }
+} {3 7 10 13 17 19 25 26 27 28 34 35 43 45 56 57}
+do_test boundary2-4.41.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 549755813887 ORDER BY a DESC
+  }
+} {57 56 45 43 35 34 28 27 26 25 19 17 13 10 7 3}
+do_test boundary2-4.41.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 549755813887 ORDER BY r
+  }
+} {35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.41.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 549755813887 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35}
+do_test boundary2-4.41.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 549755813887 ORDER BY x
+  }
+} {35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.41.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 549755813887 ORDER BY a
+  }
+} {3 7 10 13 17 19 25 26 27 28 34 35 43 45 46 56 57}
+do_test boundary2-4.41.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 549755813887 ORDER BY a DESC
+  }
+} {57 56 46 45 43 35 34 28 27 26 25 19 17 13 10 7 3}
+do_test boundary2-4.41.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 549755813887 ORDER BY r
+  }
+} {46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.41.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 549755813887 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46}
+do_test boundary2-4.41.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 549755813887 ORDER BY x
+  }
+} {46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.41.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 549755813887 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 22 23 24 29 30 31 32 33 36 37 38 39 40 41 42 44 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-4.41.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 549755813887 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 44 42 41 40 39 38 37 36 33 32 31 30 29 24 23 22 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary2-4.41.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 549755813887 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22}
+do_test boundary2-4.41.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 549755813887 ORDER BY r DESC
+  }
+} {22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.41.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 549755813887 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.41.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 549755813887 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 22 23 24 29 30 31 32 33 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-4.41.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 549755813887 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 33 32 31 30 29 24 23 22 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary2-4.41.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 549755813887 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46}
+do_test boundary2-4.41.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 549755813887 ORDER BY r DESC
+  }
+} {46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.41.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 549755813887 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.42.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=-549755813888
+  }
+} {-549755813888 63 ffffff8000000000}
+do_test boundary2-4.42.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='ffffff8000000000'
+  }
+} {-549755813888 63}
+do_test boundary2-4.42.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=63
+  }
+} {-549755813888 ffffff8000000000}
+do_test boundary2-4.42.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -549755813888 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 47 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary2-4.42.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -549755813888 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 47 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary2-4.42.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -549755813888 ORDER BY r
+  }
+} {47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.42.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -549755813888 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47}
+do_test boundary2-4.42.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -549755813888 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.42.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -549755813888 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 47 48 49 50 51 52 53 54 56 57 59 60 61 62 63}
+do_test boundary2-4.42.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -549755813888 ORDER BY a DESC
+  }
+} {63 62 61 60 59 57 56 54 53 52 51 50 49 48 47 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary2-4.42.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -549755813888 ORDER BY r
+  }
+} {63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.42.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -549755813888 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63}
+do_test boundary2-4.42.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -549755813888 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.42.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -549755813888 ORDER BY a
+  }
+} {2 21 44 55 58 64}
+do_test boundary2-4.42.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -549755813888 ORDER BY a DESC
+  }
+} {64 58 55 44 21 2}
+do_test boundary2-4.42.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -549755813888 ORDER BY r
+  }
+} {55 2 64 21 44 58}
+do_test boundary2-4.42.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -549755813888 ORDER BY r DESC
+  }
+} {58 44 21 64 2 55}
+do_test boundary2-4.42.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -549755813888 ORDER BY x
+  }
+} {55 2 64 21 44 58}
+do_test boundary2-4.42.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -549755813888 ORDER BY a
+  }
+} {2 21 44 55 58 63 64}
+do_test boundary2-4.42.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -549755813888 ORDER BY a DESC
+  }
+} {64 63 58 55 44 21 2}
+do_test boundary2-4.42.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -549755813888 ORDER BY r
+  }
+} {55 2 64 21 44 58 63}
+do_test boundary2-4.42.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -549755813888 ORDER BY r DESC
+  }
+} {63 58 44 21 64 2 55}
+do_test boundary2-4.42.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -549755813888 ORDER BY x
+  }
+} {55 2 64 21 44 58 63}
+do_test boundary2-4.43.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=281474976710655
+  }
+} {281474976710655 10 0000ffffffffffff}
+do_test boundary2-4.43.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000ffffffffffff'
+  }
+} {281474976710655 10}
+do_test boundary2-4.43.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=10
+  }
+} {281474976710655 0000ffffffffffff}
+do_test boundary2-4.43.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 281474976710655 ORDER BY a
+  }
+} {3 13 17 26 27 28 43 45}
+do_test boundary2-4.43.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 281474976710655 ORDER BY a DESC
+  }
+} {45 43 28 27 26 17 13 3}
+do_test boundary2-4.43.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 281474976710655 ORDER BY r
+  }
+} {26 13 43 27 45 17 28 3}
+do_test boundary2-4.43.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 281474976710655 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26}
+do_test boundary2-4.43.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 281474976710655 ORDER BY x
+  }
+} {26 13 43 27 45 17 28 3}
+do_test boundary2-4.43.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 281474976710655 ORDER BY a
+  }
+} {3 10 13 17 26 27 28 43 45}
+do_test boundary2-4.43.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 281474976710655 ORDER BY a DESC
+  }
+} {45 43 28 27 26 17 13 10 3}
+do_test boundary2-4.43.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 281474976710655 ORDER BY r
+  }
+} {10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.43.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 281474976710655 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10}
+do_test boundary2-4.43.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 281474976710655 ORDER BY x
+  }
+} {10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.43.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 281474976710655 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 11 12 14 15 16 18 19 20 21 22 23 24 25 29 30 31 32 33 34 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-4.43.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 281474976710655 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 34 33 32 31 30 29 25 24 23 22 21 20 19 18 16 15 14 12 11 9 8 7 6 5 4 2 1}
+do_test boundary2-4.43.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 281474976710655 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34}
+do_test boundary2-4.43.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 281474976710655 ORDER BY r DESC
+  }
+} {34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.43.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 281474976710655 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.43.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 281474976710655 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 14 15 16 18 19 20 21 22 23 24 25 29 30 31 32 33 34 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-4.43.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 281474976710655 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 34 33 32 31 30 29 25 24 23 22 21 20 19 18 16 15 14 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary2-4.43.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 281474976710655 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10}
+do_test boundary2-4.43.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 281474976710655 ORDER BY r DESC
+  }
+} {10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.43.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 281474976710655 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.44.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=4398046511103
+  }
+} {4398046511103 7 000003ffffffffff}
+do_test boundary2-4.44.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='000003ffffffffff'
+  }
+} {4398046511103 7}
+do_test boundary2-4.44.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=7
+  }
+} {4398046511103 000003ffffffffff}
+do_test boundary2-4.44.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4398046511103 ORDER BY a
+  }
+} {3 10 13 17 25 26 27 28 34 43 45 56}
+do_test boundary2-4.44.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4398046511103 ORDER BY a DESC
+  }
+} {56 45 43 34 28 27 26 25 17 13 10 3}
+do_test boundary2-4.44.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4398046511103 ORDER BY r
+  }
+} {56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.44.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4398046511103 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56}
+do_test boundary2-4.44.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4398046511103 ORDER BY x
+  }
+} {56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.44.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4398046511103 ORDER BY a
+  }
+} {3 7 10 13 17 25 26 27 28 34 43 45 56}
+do_test boundary2-4.44.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4398046511103 ORDER BY a DESC
+  }
+} {56 45 43 34 28 27 26 25 17 13 10 7 3}
+do_test boundary2-4.44.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4398046511103 ORDER BY r
+  }
+} {7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.44.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4398046511103 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7}
+do_test boundary2-4.44.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4398046511103 ORDER BY x
+  }
+} {7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.44.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4398046511103 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 19 20 21 22 23 24 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 57 58 59 60 61 62 63 64}
+do_test boundary2-4.44.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4398046511103 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 24 23 22 21 20 19 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary2-4.44.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4398046511103 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19}
+do_test boundary2-4.44.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4398046511103 ORDER BY r DESC
+  }
+} {19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.44.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4398046511103 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.44.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4398046511103 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 11 12 14 15 16 18 19 20 21 22 23 24 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 57 58 59 60 61 62 63 64}
+do_test boundary2-4.44.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4398046511103 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 24 23 22 21 20 19 18 16 15 14 12 11 9 8 7 6 5 4 2 1}
+do_test boundary2-4.44.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4398046511103 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7}
+do_test boundary2-4.44.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4398046511103 ORDER BY r DESC
+  }
+} {7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.44.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4398046511103 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.45.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=268435455
+  }
+} {268435455 12 000000000fffffff}
+do_test boundary2-4.45.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='000000000fffffff'
+  }
+} {268435455 12}
+do_test boundary2-4.45.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=12
+  }
+} {268435455 000000000fffffff}
+do_test boundary2-4.45.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 268435455 ORDER BY a
+  }
+} {3 7 10 13 14 17 19 20 22 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary2-4.45.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 268435455 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 22 20 19 17 14 13 10 7 3}
+do_test boundary2-4.45.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 268435455 ORDER BY r
+  }
+} {40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.45.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 268435455 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40}
+do_test boundary2-4.45.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 268435455 ORDER BY x
+  }
+} {40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.45.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 268435455 ORDER BY a
+  }
+} {3 7 10 12 13 14 17 19 20 22 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary2-4.45.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 268435455 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 22 20 19 17 14 13 12 10 7 3}
+do_test boundary2-4.45.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 268435455 ORDER BY r
+  }
+} {12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.45.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 268435455 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12}
+do_test boundary2-4.45.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 268435455 ORDER BY x
+  }
+} {12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.45.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 268435455 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 15 16 18 21 23 24 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-4.45.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 268435455 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 24 23 21 18 16 15 11 9 8 6 5 4 2 1}
+do_test boundary2-4.45.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 268435455 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6}
+do_test boundary2-4.45.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 268435455 ORDER BY r DESC
+  }
+} {6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.45.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 268435455 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.45.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 268435455 ORDER BY a
+  }
+} {1 2 4 5 6 8 9 11 12 15 16 18 21 23 24 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-4.45.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 268435455 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 24 23 21 18 16 15 12 11 9 8 6 5 4 2 1}
+do_test boundary2-4.45.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 268435455 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12}
+do_test boundary2-4.45.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 268435455 ORDER BY r DESC
+  }
+} {12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.45.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 268435455 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.46.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=-9223372036854775808
+  }
+} {-9223372036854775808 55 8000000000000000}
+do_test boundary2-4.46.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='8000000000000000'
+  }
+} {-9223372036854775808 55}
+do_test boundary2-4.46.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=55
+  }
+} {-9223372036854775808 8000000000000000}
+do_test boundary2-4.46.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -9223372036854775808 ORDER BY a
+  }
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 56 57 58 59 60 61 62 63 64}
+do_test boundary2-4.46.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -9223372036854775808 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1}
+do_test boundary2-4.46.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -9223372036854775808 ORDER BY r
+  }
+} {2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.46.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -9223372036854775808 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2}
+do_test boundary2-4.46.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -9223372036854775808 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.46.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -9223372036854775808 ORDER BY a
+  }
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-4.46.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -9223372036854775808 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1}
+do_test boundary2-4.46.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -9223372036854775808 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.46.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -9223372036854775808 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.46.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -9223372036854775808 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.46.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -9223372036854775808 ORDER BY a
+  }
+} {}
+do_test boundary2-4.46.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -9223372036854775808 ORDER BY a DESC
+  }
+} {}
+do_test boundary2-4.46.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -9223372036854775808 ORDER BY r
+  }
+} {}
+do_test boundary2-4.46.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -9223372036854775808 ORDER BY r DESC
+  }
+} {}
+do_test boundary2-4.46.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -9223372036854775808 ORDER BY x
+  }
+} {}
+do_test boundary2-4.46.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -9223372036854775808 ORDER BY a
+  }
+} {55}
+do_test boundary2-4.46.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -9223372036854775808 ORDER BY a DESC
+  }
+} {55}
+do_test boundary2-4.46.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -9223372036854775808 ORDER BY r
+  }
+} {55}
+do_test boundary2-4.46.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -9223372036854775808 ORDER BY r DESC
+  }
+} {55}
+do_test boundary2-4.46.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -9223372036854775808 ORDER BY x
+  }
+} {55}
+do_test boundary2-4.47.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=562949953421312
+  }
+} {562949953421312 43 0002000000000000}
+do_test boundary2-4.47.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0002000000000000'
+  }
+} {562949953421312 43}
+do_test boundary2-4.47.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=43
+  }
+} {562949953421312 0002000000000000}
+do_test boundary2-4.47.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 562949953421312 ORDER BY a
+  }
+} {3 17 27 28 45}
+do_test boundary2-4.47.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 562949953421312 ORDER BY a DESC
+  }
+} {45 28 27 17 3}
+do_test boundary2-4.47.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 562949953421312 ORDER BY r
+  }
+} {27 45 17 28 3}
+do_test boundary2-4.47.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 562949953421312 ORDER BY r DESC
+  }
+} {3 28 17 45 27}
+do_test boundary2-4.47.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 562949953421312 ORDER BY x
+  }
+} {27 45 17 28 3}
+do_test boundary2-4.47.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 562949953421312 ORDER BY a
+  }
+} {3 17 27 28 43 45}
+do_test boundary2-4.47.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 562949953421312 ORDER BY a DESC
+  }
+} {45 43 28 27 17 3}
+do_test boundary2-4.47.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 562949953421312 ORDER BY r
+  }
+} {43 27 45 17 28 3}
+do_test boundary2-4.47.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 562949953421312 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43}
+do_test boundary2-4.47.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 562949953421312 ORDER BY x
+  }
+} {43 27 45 17 28 3}
+do_test boundary2-4.47.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 562949953421312 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 18 19 20 21 22 23 24 25 26 29 30 31 32 33 34 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-4.47.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 562949953421312 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 34 33 32 31 30 29 26 25 24 23 22 21 20 19 18 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary2-4.47.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 562949953421312 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13}
+do_test boundary2-4.47.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 562949953421312 ORDER BY r DESC
+  }
+} {13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.47.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 562949953421312 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.47.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 562949953421312 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 18 19 20 21 22 23 24 25 26 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-4.47.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 562949953421312 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 26 25 24 23 22 21 20 19 18 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary2-4.47.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 562949953421312 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43}
+do_test boundary2-4.47.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 562949953421312 ORDER BY r DESC
+  }
+} {43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.47.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 562949953421312 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.48.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=-8388609
+  }
+} {-8388609 1 ffffffffff7fffff}
+do_test boundary2-4.48.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='ffffffffff7fffff'
+  }
+} {-8388609 1}
+do_test boundary2-4.48.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=1
+  }
+} {-8388609 ffffffffff7fffff}
+do_test boundary2-4.48.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -8388609 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary2-4.48.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -8388609 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-4.48.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -8388609 ORDER BY r
+  }
+} {37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.48.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -8388609 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37}
+do_test boundary2-4.48.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -8388609 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 37 29 32 54 53 52 33 38}
+do_test boundary2-4.48.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -8388609 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary2-4.48.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -8388609 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3 1}
+do_test boundary2-4.48.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -8388609 ORDER BY r
+  }
+} {1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.48.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -8388609 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1}
+do_test boundary2-4.48.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -8388609 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.48.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -8388609 ORDER BY a
+  }
+} {2 11 21 44 47 55 58 63 64}
+do_test boundary2-4.48.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -8388609 ORDER BY a DESC
+  }
+} {64 63 58 55 47 44 21 11 2}
+do_test boundary2-4.48.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -8388609 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11}
+do_test boundary2-4.48.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -8388609 ORDER BY r DESC
+  }
+} {11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.48.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -8388609 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11}
+do_test boundary2-4.48.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -8388609 ORDER BY a
+  }
+} {1 2 11 21 44 47 55 58 63 64}
+do_test boundary2-4.48.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -8388609 ORDER BY a DESC
+  }
+} {64 63 58 55 47 44 21 11 2 1}
+do_test boundary2-4.48.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -8388609 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1}
+do_test boundary2-4.48.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -8388609 ORDER BY r DESC
+  }
+} {1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.48.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -8388609 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1}
+do_test boundary2-4.49.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=16777215
+  }
+} {16777215 9 0000000000ffffff}
+do_test boundary2-4.49.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000000000ffffff'
+  }
+} {16777215 9}
+do_test boundary2-4.49.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=9
+  }
+} {16777215 0000000000ffffff}
+do_test boundary2-4.49.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 16777215 ORDER BY a
+  }
+} {3 6 7 10 12 13 14 17 19 20 22 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary2-4.49.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 16777215 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 22 20 19 17 14 13 12 10 7 6 3}
+do_test boundary2-4.49.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 16777215 ORDER BY r
+  }
+} {6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.49.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 16777215 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6}
+do_test boundary2-4.49.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 16777215 ORDER BY x
+  }
+} {6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.49.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 16777215 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 17 19 20 22 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary2-4.49.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 16777215 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 22 20 19 17 14 13 12 10 9 7 6 3}
+do_test boundary2-4.49.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 16777215 ORDER BY r
+  }
+} {9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.49.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 16777215 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9}
+do_test boundary2-4.49.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 16777215 ORDER BY x
+  }
+} {9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.49.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 16777215 ORDER BY a
+  }
+} {1 2 4 5 8 11 15 16 18 21 23 24 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-4.49.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 16777215 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 24 23 21 18 16 15 11 8 5 4 2 1}
+do_test boundary2-4.49.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 16777215 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24}
+do_test boundary2-4.49.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 16777215 ORDER BY r DESC
+  }
+} {24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.49.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 16777215 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.49.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 16777215 ORDER BY a
+  }
+} {1 2 4 5 8 9 11 15 16 18 21 23 24 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-4.49.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 16777215 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 24 23 21 18 16 15 11 9 8 5 4 2 1}
+do_test boundary2-4.49.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 16777215 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9}
+do_test boundary2-4.49.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 16777215 ORDER BY r DESC
+  }
+} {9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.49.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 16777215 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.50.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=8388608
+  }
+} {8388608 24 0000000000800000}
+do_test boundary2-4.50.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000000000800000'
+  }
+} {8388608 24}
+do_test boundary2-4.50.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=24
+  }
+} {8388608 0000000000800000}
+do_test boundary2-4.50.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 8388608 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 17 19 20 22 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary2-4.50.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 8388608 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 22 20 19 17 14 13 12 10 9 7 6 3}
+do_test boundary2-4.50.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 8388608 ORDER BY r
+  }
+} {9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.50.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 8388608 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9}
+do_test boundary2-4.50.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 8388608 ORDER BY x
+  }
+} {9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.50.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 8388608 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 17 19 20 22 24 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary2-4.50.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 8388608 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 24 22 20 19 17 14 13 12 10 9 7 6 3}
+do_test boundary2-4.50.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 8388608 ORDER BY r
+  }
+} {24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.50.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 8388608 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24}
+do_test boundary2-4.50.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 8388608 ORDER BY x
+  }
+} {24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.50.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 8388608 ORDER BY a
+  }
+} {1 2 4 5 8 11 15 16 18 21 23 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-4.50.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 8388608 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 23 21 18 16 15 11 8 5 4 2 1}
+do_test boundary2-4.50.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 8388608 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18}
+do_test boundary2-4.50.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 8388608 ORDER BY r DESC
+  }
+} {18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.50.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 8388608 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.50.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 8388608 ORDER BY a
+  }
+} {1 2 4 5 8 11 15 16 18 21 23 24 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-4.50.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 8388608 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 24 23 21 18 16 15 11 8 5 4 2 1}
+do_test boundary2-4.50.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 8388608 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24}
+do_test boundary2-4.50.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 8388608 ORDER BY r DESC
+  }
+} {24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.50.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 8388608 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.51.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=16383
+  }
+} {16383 8 0000000000003fff}
+do_test boundary2-4.51.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000000000003fff'
+  }
+} {16383 8}
+do_test boundary2-4.51.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=8
+  }
+} {16383 0000000000003fff}
+do_test boundary2-4.51.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 16383 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 50 51 56 57 62}
+do_test boundary2-4.51.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 16383 ORDER BY a DESC
+  }
+} {62 57 56 51 50 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 7 6 3}
+do_test boundary2-4.51.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 16383 ORDER BY r
+  }
+} {16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.51.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 16383 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16}
+do_test boundary2-4.51.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 16383 ORDER BY x
+  }
+} {16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.51.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 16383 ORDER BY a
+  }
+} {3 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 50 51 56 57 62}
+do_test boundary2-4.51.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 16383 ORDER BY a DESC
+  }
+} {62 57 56 51 50 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 3}
+do_test boundary2-4.51.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 16383 ORDER BY r
+  }
+} {8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.51.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 16383 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8}
+do_test boundary2-4.51.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 16383 ORDER BY x
+  }
+} {8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.51.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 16383 ORDER BY a
+  }
+} {1 2 4 5 11 21 29 30 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 61 63 64}
+do_test boundary2-4.51.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 16383 ORDER BY a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 30 29 21 11 5 4 2 1}
+do_test boundary2-4.51.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 16383 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61}
+do_test boundary2-4.51.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 16383 ORDER BY r DESC
+  }
+} {61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.51.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 16383 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.51.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 16383 ORDER BY a
+  }
+} {1 2 4 5 8 11 21 29 30 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 61 63 64}
+do_test boundary2-4.51.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 16383 ORDER BY a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 30 29 21 11 8 5 4 2 1}
+do_test boundary2-4.51.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 16383 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8}
+do_test boundary2-4.51.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 16383 ORDER BY r DESC
+  }
+} {8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.51.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 16383 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.52.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=140737488355328
+  }
+} {140737488355328 34 0000800000000000}
+do_test boundary2-4.52.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000800000000000'
+  }
+} {140737488355328 34}
+do_test boundary2-4.52.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=34
+  }
+} {140737488355328 0000800000000000}
+do_test boundary2-4.52.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 140737488355328 ORDER BY a
+  }
+} {3 10 13 17 26 27 28 43 45}
+do_test boundary2-4.52.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 140737488355328 ORDER BY a DESC
+  }
+} {45 43 28 27 26 17 13 10 3}
+do_test boundary2-4.52.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 140737488355328 ORDER BY r
+  }
+} {10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.52.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 140737488355328 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10}
+do_test boundary2-4.52.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 140737488355328 ORDER BY x
+  }
+} {10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.52.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 140737488355328 ORDER BY a
+  }
+} {3 10 13 17 26 27 28 34 43 45}
+do_test boundary2-4.52.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 140737488355328 ORDER BY a DESC
+  }
+} {45 43 34 28 27 26 17 13 10 3}
+do_test boundary2-4.52.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 140737488355328 ORDER BY r
+  }
+} {34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.52.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 140737488355328 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34}
+do_test boundary2-4.52.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 140737488355328 ORDER BY x
+  }
+} {34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.52.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 140737488355328 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 11 12 14 15 16 18 19 20 21 22 23 24 25 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-4.52.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 140737488355328 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 25 24 23 22 21 20 19 18 16 15 14 12 11 9 8 7 6 5 4 2 1}
+do_test boundary2-4.52.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 140737488355328 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25}
+do_test boundary2-4.52.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 140737488355328 ORDER BY r DESC
+  }
+} {25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.52.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 140737488355328 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.52.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 140737488355328 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 11 12 14 15 16 18 19 20 21 22 23 24 25 29 30 31 32 33 34 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-4.52.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 140737488355328 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 34 33 32 31 30 29 25 24 23 22 21 20 19 18 16 15 14 12 11 9 8 7 6 5 4 2 1}
+do_test boundary2-4.52.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 140737488355328 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34}
+do_test boundary2-4.52.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 140737488355328 ORDER BY r DESC
+  }
+} {34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.52.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 140737488355328 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.53.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=2097151
+  }
+} {2097151 15 00000000001fffff}
+do_test boundary2-4.53.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='00000000001fffff'
+  }
+} {2097151 15}
+do_test boundary2-4.53.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=15
+  }
+} {2097151 00000000001fffff}
+do_test boundary2-4.53.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2097151 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 42 43 45 46 51 56 57}
+do_test boundary2-4.53.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2097151 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 42 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 14 13 12 10 9 7 6 3}
+do_test boundary2-4.53.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2097151 ORDER BY r
+  }
+} {42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.53.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2097151 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42}
+do_test boundary2-4.53.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 2097151 ORDER BY x
+  }
+} {42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.53.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2097151 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 15 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 42 43 45 46 51 56 57}
+do_test boundary2-4.53.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2097151 ORDER BY a DESC
+  }
+} {57 56 51 46 45 43 42 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 15 14 13 12 10 9 7 6 3}
+do_test boundary2-4.53.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2097151 ORDER BY r
+  }
+} {15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.53.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2097151 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15}
+do_test boundary2-4.53.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 2097151 ORDER BY x
+  }
+} {15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.53.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2097151 ORDER BY a
+  }
+} {1 2 4 5 8 11 16 21 23 29 30 31 32 33 37 38 41 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-4.53.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2097151 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 41 38 37 33 32 31 30 29 23 21 16 11 8 5 4 2 1}
+do_test boundary2-4.53.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2097151 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62}
+do_test boundary2-4.53.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2097151 ORDER BY r DESC
+  }
+} {62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.53.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 2097151 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.53.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2097151 ORDER BY a
+  }
+} {1 2 4 5 8 11 15 16 21 23 29 30 31 32 33 37 38 41 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary2-4.53.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2097151 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 41 38 37 33 32 31 30 29 23 21 16 15 11 8 5 4 2 1}
+do_test boundary2-4.53.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2097151 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15}
+do_test boundary2-4.53.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2097151 ORDER BY r DESC
+  }
+} {15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.53.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 2097151 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.54.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=140737488355327
+  }
+} {140737488355327 25 00007fffffffffff}
+do_test boundary2-4.54.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='00007fffffffffff'
+  }
+} {140737488355327 25}
+do_test boundary2-4.54.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=25
+  }
+} {140737488355327 00007fffffffffff}
+do_test boundary2-4.54.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 140737488355327 ORDER BY a
+  }
+} {3 10 13 17 26 27 28 34 43 45}
+do_test boundary2-4.54.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 140737488355327 ORDER BY a DESC
+  }
+} {45 43 34 28 27 26 17 13 10 3}
+do_test boundary2-4.54.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 140737488355327 ORDER BY r
+  }
+} {34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.54.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 140737488355327 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34}
+do_test boundary2-4.54.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 140737488355327 ORDER BY x
+  }
+} {34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.54.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 140737488355327 ORDER BY a
+  }
+} {3 10 13 17 25 26 27 28 34 43 45}
+do_test boundary2-4.54.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 140737488355327 ORDER BY a DESC
+  }
+} {45 43 34 28 27 26 25 17 13 10 3}
+do_test boundary2-4.54.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 140737488355327 ORDER BY r
+  }
+} {25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.54.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 140737488355327 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25}
+do_test boundary2-4.54.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 140737488355327 ORDER BY x
+  }
+} {25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.54.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 140737488355327 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 11 12 14 15 16 18 19 20 21 22 23 24 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-4.54.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 140737488355327 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 24 23 22 21 20 19 18 16 15 14 12 11 9 8 7 6 5 4 2 1}
+do_test boundary2-4.54.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 140737488355327 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56}
+do_test boundary2-4.54.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 140737488355327 ORDER BY r DESC
+  }
+} {56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.54.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 140737488355327 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.54.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 140737488355327 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 11 12 14 15 16 18 19 20 21 22 23 24 25 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-4.54.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 140737488355327 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 25 24 23 22 21 20 19 18 16 15 14 12 11 9 8 7 6 5 4 2 1}
+do_test boundary2-4.54.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 140737488355327 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25}
+do_test boundary2-4.54.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 140737488355327 ORDER BY r DESC
+  }
+} {25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.54.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 140737488355327 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.55.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=281474976710656
+  }
+} {281474976710656 26 0001000000000000}
+do_test boundary2-4.55.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0001000000000000'
+  }
+} {281474976710656 26}
+do_test boundary2-4.55.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=26
+  }
+} {281474976710656 0001000000000000}
+do_test boundary2-4.55.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 281474976710656 ORDER BY a
+  }
+} {3 13 17 27 28 43 45}
+do_test boundary2-4.55.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 281474976710656 ORDER BY a DESC
+  }
+} {45 43 28 27 17 13 3}
+do_test boundary2-4.55.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 281474976710656 ORDER BY r
+  }
+} {13 43 27 45 17 28 3}
+do_test boundary2-4.55.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 281474976710656 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13}
+do_test boundary2-4.55.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 281474976710656 ORDER BY x
+  }
+} {13 43 27 45 17 28 3}
+do_test boundary2-4.55.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 281474976710656 ORDER BY a
+  }
+} {3 13 17 26 27 28 43 45}
+do_test boundary2-4.55.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 281474976710656 ORDER BY a DESC
+  }
+} {45 43 28 27 26 17 13 3}
+do_test boundary2-4.55.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 281474976710656 ORDER BY r
+  }
+} {26 13 43 27 45 17 28 3}
+do_test boundary2-4.55.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 281474976710656 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26}
+do_test boundary2-4.55.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 281474976710656 ORDER BY x
+  }
+} {26 13 43 27 45 17 28 3}
+do_test boundary2-4.55.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 281474976710656 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 14 15 16 18 19 20 21 22 23 24 25 29 30 31 32 33 34 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-4.55.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 281474976710656 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 34 33 32 31 30 29 25 24 23 22 21 20 19 18 16 15 14 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary2-4.55.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 281474976710656 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10}
+do_test boundary2-4.55.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 281474976710656 ORDER BY r DESC
+  }
+} {10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.55.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 281474976710656 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.55.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 281474976710656 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 14 15 16 18 19 20 21 22 23 24 25 26 29 30 31 32 33 34 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-4.55.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 281474976710656 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 34 33 32 31 30 29 26 25 24 23 22 21 20 19 18 16 15 14 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary2-4.55.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 281474976710656 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26}
+do_test boundary2-4.55.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 281474976710656 ORDER BY r DESC
+  }
+} {26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.55.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 281474976710656 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.56.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=32767
+  }
+} {32767 23 0000000000007fff}
+do_test boundary2-4.56.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000000000007fff'
+  }
+} {32767 23}
+do_test boundary2-4.56.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=23
+  }
+} {32767 0000000000007fff}
+do_test boundary2-4.56.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 32767 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 15 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 50 51 56 57 62}
+do_test boundary2-4.56.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 32767 ORDER BY a DESC
+  }
+} {62 57 56 51 50 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 15 14 13 12 10 9 7 6 3}
+do_test boundary2-4.56.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 32767 ORDER BY r
+  }
+} {50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.56.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 32767 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50}
+do_test boundary2-4.56.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 32767 ORDER BY x
+  }
+} {50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.56.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 32767 ORDER BY a
+  }
+} {3 6 7 9 10 12 13 14 15 17 18 19 20 22 23 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 50 51 56 57 62}
+do_test boundary2-4.56.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 32767 ORDER BY a DESC
+  }
+} {62 57 56 51 50 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 23 22 20 19 18 17 15 14 13 12 10 9 7 6 3}
+do_test boundary2-4.56.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 32767 ORDER BY r
+  }
+} {23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.56.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 32767 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23}
+do_test boundary2-4.56.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 32767 ORDER BY x
+  }
+} {23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.56.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 32767 ORDER BY a
+  }
+} {1 2 4 5 8 11 16 21 29 30 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 61 63 64}
+do_test boundary2-4.56.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 32767 ORDER BY a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 30 29 21 16 11 8 5 4 2 1}
+do_test boundary2-4.56.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 32767 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16}
+do_test boundary2-4.56.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 32767 ORDER BY r DESC
+  }
+} {16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.56.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 32767 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.56.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 32767 ORDER BY a
+  }
+} {1 2 4 5 8 11 16 21 23 29 30 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 61 63 64}
+do_test boundary2-4.56.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 32767 ORDER BY a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 30 29 23 21 16 11 8 5 4 2 1}
+do_test boundary2-4.56.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 32767 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23}
+do_test boundary2-4.56.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 32767 ORDER BY r DESC
+  }
+} {23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.56.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 32767 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.57.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=127
+  }
+} {127 4 000000000000007f}
+do_test boundary2-4.57.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='000000000000007f'
+  }
+} {127 4}
+do_test boundary2-4.57.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=4
+  }
+} {127 000000000000007f}
+do_test boundary2-4.57.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 127 ORDER BY a
+  }
+} {3 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 34 35 36 39 40 42 43 45 46 48 49 50 51 56 57 61 62}
+do_test boundary2-4.57.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 127 ORDER BY a DESC
+  }
+} {62 61 57 56 51 50 49 48 46 45 43 42 40 39 36 35 34 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 3}
+do_test boundary2-4.57.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 127 ORDER BY r
+  }
+} {49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.57.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 127 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49}
+do_test boundary2-4.57.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 127 ORDER BY x
+  }
+} {49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.57.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 127 ORDER BY a
+  }
+} {3 4 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 34 35 36 39 40 42 43 45 46 48 49 50 51 56 57 61 62}
+do_test boundary2-4.57.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 127 ORDER BY a DESC
+  }
+} {62 61 57 56 51 50 49 48 46 45 43 42 40 39 36 35 34 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 4 3}
+do_test boundary2-4.57.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 127 ORDER BY r
+  }
+} {4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.57.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 127 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4}
+do_test boundary2-4.57.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 127 ORDER BY x
+  }
+} {4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.57.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 127 ORDER BY a
+  }
+} {1 2 5 11 21 29 31 32 33 37 38 41 44 47 52 53 54 55 58 59 60 63 64}
+do_test boundary2-4.57.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 127 ORDER BY a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 47 44 41 38 37 33 32 31 29 21 11 5 2 1}
+do_test boundary2-4.57.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 127 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31}
+do_test boundary2-4.57.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 127 ORDER BY r DESC
+  }
+} {31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.57.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 127 ORDER BY x
+  }
+} {59 60 41 5 31 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.57.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 127 ORDER BY a
+  }
+} {1 2 4 5 11 21 29 31 32 33 37 38 41 44 47 52 53 54 55 58 59 60 63 64}
+do_test boundary2-4.57.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 127 ORDER BY a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 47 44 41 38 37 33 32 31 29 21 11 5 4 2 1}
+do_test boundary2-4.57.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 127 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4}
+do_test boundary2-4.57.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 127 ORDER BY r DESC
+  }
+} {4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.57.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 127 ORDER BY x
+  }
+} {59 60 41 5 31 4 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.58.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=36028797018963967
+  }
+} {36028797018963967 27 007fffffffffffff}
+do_test boundary2-4.58.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='007fffffffffffff'
+  }
+} {36028797018963967 27}
+do_test boundary2-4.58.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=27
+  }
+} {36028797018963967 007fffffffffffff}
+do_test boundary2-4.58.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 36028797018963967 ORDER BY a
+  }
+} {3 17 28 45}
+do_test boundary2-4.58.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 36028797018963967 ORDER BY a DESC
+  }
+} {45 28 17 3}
+do_test boundary2-4.58.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 36028797018963967 ORDER BY r
+  }
+} {45 17 28 3}
+do_test boundary2-4.58.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 36028797018963967 ORDER BY r DESC
+  }
+} {3 28 17 45}
+do_test boundary2-4.58.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 36028797018963967 ORDER BY x
+  }
+} {45 17 28 3}
+do_test boundary2-4.58.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 36028797018963967 ORDER BY a
+  }
+} {3 17 27 28 45}
+do_test boundary2-4.58.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 36028797018963967 ORDER BY a DESC
+  }
+} {45 28 27 17 3}
+do_test boundary2-4.58.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 36028797018963967 ORDER BY r
+  }
+} {27 45 17 28 3}
+do_test boundary2-4.58.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 36028797018963967 ORDER BY r DESC
+  }
+} {3 28 17 45 27}
+do_test boundary2-4.58.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 36028797018963967 ORDER BY x
+  }
+} {27 45 17 28 3}
+do_test boundary2-4.58.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 36028797018963967 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 18 19 20 21 22 23 24 25 26 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-4.58.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 36028797018963967 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 26 25 24 23 22 21 20 19 18 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary2-4.58.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 36028797018963967 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43}
+do_test boundary2-4.58.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 36028797018963967 ORDER BY r DESC
+  }
+} {43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.58.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 36028797018963967 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.58.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 36028797018963967 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 18 19 20 21 22 23 24 25 26 27 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-4.58.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 36028797018963967 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 27 26 25 24 23 22 21 20 19 18 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary2-4.58.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 36028797018963967 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27}
+do_test boundary2-4.58.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 36028797018963967 ORDER BY r DESC
+  }
+} {27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.58.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 36028797018963967 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.59.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=4398046511104
+  }
+} {4398046511104 56 0000040000000000}
+do_test boundary2-4.59.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000040000000000'
+  }
+} {4398046511104 56}
+do_test boundary2-4.59.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=56
+  }
+} {4398046511104 0000040000000000}
+do_test boundary2-4.59.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4398046511104 ORDER BY a
+  }
+} {3 10 13 17 25 26 27 28 34 43 45}
+do_test boundary2-4.59.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4398046511104 ORDER BY a DESC
+  }
+} {45 43 34 28 27 26 25 17 13 10 3}
+do_test boundary2-4.59.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4398046511104 ORDER BY r
+  }
+} {25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.59.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4398046511104 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25}
+do_test boundary2-4.59.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 4398046511104 ORDER BY x
+  }
+} {25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.59.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4398046511104 ORDER BY a
+  }
+} {3 10 13 17 25 26 27 28 34 43 45 56}
+do_test boundary2-4.59.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4398046511104 ORDER BY a DESC
+  }
+} {56 45 43 34 28 27 26 25 17 13 10 3}
+do_test boundary2-4.59.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4398046511104 ORDER BY r
+  }
+} {56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.59.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4398046511104 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56}
+do_test boundary2-4.59.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 4398046511104 ORDER BY x
+  }
+} {56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.59.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4398046511104 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 11 12 14 15 16 18 19 20 21 22 23 24 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 57 58 59 60 61 62 63 64}
+do_test boundary2-4.59.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4398046511104 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 24 23 22 21 20 19 18 16 15 14 12 11 9 8 7 6 5 4 2 1}
+do_test boundary2-4.59.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4398046511104 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7}
+do_test boundary2-4.59.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4398046511104 ORDER BY r DESC
+  }
+} {7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.59.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 4398046511104 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.59.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4398046511104 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 11 12 14 15 16 18 19 20 21 22 23 24 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-4.59.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4398046511104 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 24 23 22 21 20 19 18 16 15 14 12 11 9 8 7 6 5 4 2 1}
+do_test boundary2-4.59.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4398046511104 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56}
+do_test boundary2-4.59.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4398046511104 ORDER BY r DESC
+  }
+} {56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.59.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 4398046511104 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.60.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=1
+  }
+} {1 60 0000000000000001}
+do_test boundary2-4.60.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000000000000001'
+  }
+} {1 60}
+do_test boundary2-4.60.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=60
+  }
+} {1 0000000000000001}
+do_test boundary2-4.60.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 1 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 39 40 41 42 43 45 46 48 49 50 51 56 57 61 62}
+do_test boundary2-4.60.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 1 ORDER BY a DESC
+  }
+} {62 61 57 56 51 50 49 48 46 45 43 42 41 40 39 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-4.60.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 1 ORDER BY r
+  }
+} {41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.60.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 1 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41}
+do_test boundary2-4.60.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 1 ORDER BY x
+  }
+} {41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.60.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 1 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 39 40 41 42 43 45 46 48 49 50 51 56 57 60 61 62}
+do_test boundary2-4.60.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 1 ORDER BY a DESC
+  }
+} {62 61 60 57 56 51 50 49 48 46 45 43 42 41 40 39 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-4.60.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 1 ORDER BY r
+  }
+} {60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.60.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 1 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60}
+do_test boundary2-4.60.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 1 ORDER BY x
+  }
+} {60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.60.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 1 ORDER BY a
+  }
+} {1 2 11 21 29 32 33 37 38 44 47 52 53 54 55 58 59 63 64}
+do_test boundary2-4.60.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 1 ORDER BY a DESC
+  }
+} {64 63 59 58 55 54 53 52 47 44 38 37 33 32 29 21 11 2 1}
+do_test boundary2-4.60.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 1 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59}
+do_test boundary2-4.60.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 1 ORDER BY r DESC
+  }
+} {59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.60.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 1 ORDER BY x
+  }
+} {59 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.60.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 1 ORDER BY a
+  }
+} {1 2 11 21 29 32 33 37 38 44 47 52 53 54 55 58 59 60 63 64}
+do_test boundary2-4.60.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 1 ORDER BY a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 47 44 38 37 33 32 29 21 11 2 1}
+do_test boundary2-4.60.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 1 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60}
+do_test boundary2-4.60.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 1 ORDER BY r DESC
+  }
+} {60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.60.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 1 ORDER BY x
+  }
+} {59 60 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.61.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=36028797018963968
+  }
+} {36028797018963968 45 0080000000000000}
+do_test boundary2-4.61.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0080000000000000'
+  }
+} {36028797018963968 45}
+do_test boundary2-4.61.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=45
+  }
+} {36028797018963968 0080000000000000}
+do_test boundary2-4.61.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 36028797018963968 ORDER BY a
+  }
+} {3 17 28}
+do_test boundary2-4.61.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 36028797018963968 ORDER BY a DESC
+  }
+} {28 17 3}
+do_test boundary2-4.61.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 36028797018963968 ORDER BY r
+  }
+} {17 28 3}
+do_test boundary2-4.61.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 36028797018963968 ORDER BY r DESC
+  }
+} {3 28 17}
+do_test boundary2-4.61.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 36028797018963968 ORDER BY x
+  }
+} {17 28 3}
+do_test boundary2-4.61.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 36028797018963968 ORDER BY a
+  }
+} {3 17 28 45}
+do_test boundary2-4.61.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 36028797018963968 ORDER BY a DESC
+  }
+} {45 28 17 3}
+do_test boundary2-4.61.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 36028797018963968 ORDER BY r
+  }
+} {45 17 28 3}
+do_test boundary2-4.61.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 36028797018963968 ORDER BY r DESC
+  }
+} {3 28 17 45}
+do_test boundary2-4.61.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 36028797018963968 ORDER BY x
+  }
+} {45 17 28 3}
+do_test boundary2-4.61.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 36028797018963968 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 18 19 20 21 22 23 24 25 26 27 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-4.61.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 36028797018963968 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 27 26 25 24 23 22 21 20 19 18 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary2-4.61.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 36028797018963968 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27}
+do_test boundary2-4.61.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 36028797018963968 ORDER BY r DESC
+  }
+} {27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.61.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 36028797018963968 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.61.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 36028797018963968 ORDER BY a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 18 19 20 21 22 23 24 25 26 27 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-4.61.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 36028797018963968 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 27 26 25 24 23 22 21 20 19 18 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary2-4.61.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 36028797018963968 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45}
+do_test boundary2-4.61.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 36028797018963968 ORDER BY r DESC
+  }
+} {45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.61.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 36028797018963968 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.62.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=-2147483649
+  }
+} {-2147483649 47 ffffffff7fffffff}
+do_test boundary2-4.62.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='ffffffff7fffffff'
+  }
+} {-2147483649 47}
+do_test boundary2-4.62.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=47
+  }
+} {-2147483649 ffffffff7fffffff}
+do_test boundary2-4.62.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -2147483649 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary2-4.62.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -2147483649 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary2-4.62.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -2147483649 ORDER BY r
+  }
+} {11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.62.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -2147483649 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11}
+do_test boundary2-4.62.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -2147483649 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.62.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -2147483649 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 47 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary2-4.62.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -2147483649 ORDER BY a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 47 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary2-4.62.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -2147483649 ORDER BY r
+  }
+} {47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.62.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -2147483649 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47}
+do_test boundary2-4.62.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -2147483649 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.62.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -2147483649 ORDER BY a
+  }
+} {2 21 44 55 58 63 64}
+do_test boundary2-4.62.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -2147483649 ORDER BY a DESC
+  }
+} {64 63 58 55 44 21 2}
+do_test boundary2-4.62.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -2147483649 ORDER BY r
+  }
+} {55 2 64 21 44 58 63}
+do_test boundary2-4.62.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -2147483649 ORDER BY r DESC
+  }
+} {63 58 44 21 64 2 55}
+do_test boundary2-4.62.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -2147483649 ORDER BY x
+  }
+} {55 2 64 21 44 58 63}
+do_test boundary2-4.62.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -2147483649 ORDER BY a
+  }
+} {2 21 44 47 55 58 63 64}
+do_test boundary2-4.62.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -2147483649 ORDER BY a DESC
+  }
+} {64 63 58 55 47 44 21 2}
+do_test boundary2-4.62.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -2147483649 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47}
+do_test boundary2-4.62.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -2147483649 ORDER BY r DESC
+  }
+} {47 63 58 44 21 64 2 55}
+do_test boundary2-4.62.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -2147483649 ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47}
+do_test boundary2-4.63.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=-36028797018963969
+  }
+} {-36028797018963969 2 ff7fffffffffffff}
+do_test boundary2-4.63.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='ff7fffffffffffff'
+  }
+} {-36028797018963969 2}
+do_test boundary2-4.63.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=2
+  }
+} {-36028797018963969 ff7fffffffffffff}
+do_test boundary2-4.63.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -36028797018963969 ORDER BY a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 56 57 58 59 60 61 62 63 64}
+do_test boundary2-4.63.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -36028797018963969 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary2-4.63.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -36028797018963969 ORDER BY r
+  }
+} {64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.63.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -36028797018963969 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64}
+do_test boundary2-4.63.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -36028797018963969 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.63.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -36028797018963969 ORDER BY a
+  }
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 56 57 58 59 60 61 62 63 64}
+do_test boundary2-4.63.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -36028797018963969 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1}
+do_test boundary2-4.63.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -36028797018963969 ORDER BY r
+  }
+} {2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.63.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -36028797018963969 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2}
+do_test boundary2-4.63.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -36028797018963969 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.63.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -36028797018963969 ORDER BY a
+  }
+} {55}
+do_test boundary2-4.63.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -36028797018963969 ORDER BY a DESC
+  }
+} {55}
+do_test boundary2-4.63.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -36028797018963969 ORDER BY r
+  }
+} {55}
+do_test boundary2-4.63.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -36028797018963969 ORDER BY r DESC
+  }
+} {55}
+do_test boundary2-4.63.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -36028797018963969 ORDER BY x
+  }
+} {55}
+do_test boundary2-4.63.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -36028797018963969 ORDER BY a
+  }
+} {2 55}
+do_test boundary2-4.63.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -36028797018963969 ORDER BY a DESC
+  }
+} {55 2}
+do_test boundary2-4.63.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -36028797018963969 ORDER BY r
+  }
+} {55 2}
+do_test boundary2-4.63.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -36028797018963969 ORDER BY r DESC
+  }
+} {2 55}
+do_test boundary2-4.63.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -36028797018963969 ORDER BY x
+  }
+} {55 2}
+do_test boundary2-4.64.1 {
+  db eval {
+    SELECT * FROM t1 WHERE r=3
+  }
+} {3 5 0000000000000003}
+do_test boundary2-4.64.2 {
+  db eval {
+    SELECT r, a FROM t1 WHERE x='0000000000000003'
+  }
+} {3 5}
+do_test boundary2-4.64.3 {
+  db eval {
+    SELECT r, x FROM t1 WHERE a=5
+  }
+} {3 0000000000000003}
+do_test boundary2-4.64.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 3 ORDER BY a
+  }
+} {3 4 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 39 40 42 43 45 46 48 49 50 51 56 57 61 62}
+do_test boundary2-4.64.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 3 ORDER BY a DESC
+  }
+} {62 61 57 56 51 50 49 48 46 45 43 42 40 39 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 4 3}
+do_test boundary2-4.64.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 3 ORDER BY r
+  }
+} {31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.64.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 3 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31}
+do_test boundary2-4.64.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 3 ORDER BY x
+  }
+} {31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.64.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 3 ORDER BY a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 39 40 42 43 45 46 48 49 50 51 56 57 61 62}
+do_test boundary2-4.64.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 3 ORDER BY a DESC
+  }
+} {62 61 57 56 51 50 49 48 46 45 43 42 40 39 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary2-4.64.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 3 ORDER BY r
+  }
+} {5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.64.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 3 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5}
+do_test boundary2-4.64.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 3 ORDER BY x
+  }
+} {5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.64.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 3 ORDER BY a
+  }
+} {1 2 11 21 29 32 33 37 38 41 44 47 52 53 54 55 58 59 60 63 64}
+do_test boundary2-4.64.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 3 ORDER BY a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 47 44 41 38 37 33 32 29 21 11 2 1}
+do_test boundary2-4.64.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 3 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41}
+do_test boundary2-4.64.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 3 ORDER BY r DESC
+  }
+} {41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.64.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 3 ORDER BY x
+  }
+} {59 60 41 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.64.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 3 ORDER BY a
+  }
+} {1 2 5 11 21 29 32 33 37 38 41 44 47 52 53 54 55 58 59 60 63 64}
+do_test boundary2-4.64.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 3 ORDER BY a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 47 44 41 38 37 33 32 29 21 11 5 2 1}
+do_test boundary2-4.64.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 3 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5}
+do_test boundary2-4.64.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 3 ORDER BY r DESC
+  }
+} {5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.64.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 3 ORDER BY x
+  }
+} {59 60 41 5 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.65.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 9.22337303685477580800e+18 ORDER BY a
+  }
+} {}
+do_test boundary2-4.65.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 9.22337303685477580800e+18 ORDER BY a DESC
+  }
+} {}
+do_test boundary2-4.65.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 9.22337303685477580800e+18 ORDER BY r
+  }
+} {}
+do_test boundary2-4.65.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 9.22337303685477580800e+18 ORDER BY r DESC
+  }
+} {}
+do_test boundary2-4.65.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > 9.22337303685477580800e+18 ORDER BY x
+  }
+} {}
+do_test boundary2-4.65.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 9.22337303685477580800e+18 ORDER BY a
+  }
+} {}
+do_test boundary2-4.65.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 9.22337303685477580800e+18 ORDER BY a DESC
+  }
+} {}
+do_test boundary2-4.65.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 9.22337303685477580800e+18 ORDER BY r
+  }
+} {}
+do_test boundary2-4.65.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 9.22337303685477580800e+18 ORDER BY r DESC
+  }
+} {}
+do_test boundary2-4.65.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= 9.22337303685477580800e+18 ORDER BY x
+  }
+} {}
+do_test boundary2-4.65.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 9.22337303685477580800e+18 ORDER BY a
+  }
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-4.65.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 9.22337303685477580800e+18 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1}
+do_test boundary2-4.65.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 9.22337303685477580800e+18 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.65.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 9.22337303685477580800e+18 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.65.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < 9.22337303685477580800e+18 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.65.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 9.22337303685477580800e+18 ORDER BY a
+  }
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-4.65.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 9.22337303685477580800e+18 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1}
+do_test boundary2-4.65.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 9.22337303685477580800e+18 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.65.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 9.22337303685477580800e+18 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.65.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= 9.22337303685477580800e+18 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.66.gt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -9.22337303685477580800e+18 ORDER BY a
+  }
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-4.66.gt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -9.22337303685477580800e+18 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1}
+do_test boundary2-4.66.gt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -9.22337303685477580800e+18 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.66.gt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -9.22337303685477580800e+18 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.66.gt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r > -9.22337303685477580800e+18 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.66.ge.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -9.22337303685477580800e+18 ORDER BY a
+  }
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary2-4.66.ge.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -9.22337303685477580800e+18 ORDER BY a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1}
+do_test boundary2-4.66.ge.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -9.22337303685477580800e+18 ORDER BY r
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary2-4.66.ge.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -9.22337303685477580800e+18 ORDER BY r DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary2-4.66.ge.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r >= -9.22337303685477580800e+18 ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary2-4.66.lt.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -9.22337303685477580800e+18 ORDER BY a
+  }
+} {}
+do_test boundary2-4.66.lt.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -9.22337303685477580800e+18 ORDER BY a DESC
+  }
+} {}
+do_test boundary2-4.66.lt.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -9.22337303685477580800e+18 ORDER BY r
+  }
+} {}
+do_test boundary2-4.66.lt.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -9.22337303685477580800e+18 ORDER BY r DESC
+  }
+} {}
+do_test boundary2-4.66.lt.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r < -9.22337303685477580800e+18 ORDER BY x
+  }
+} {}
+do_test boundary2-4.66.le.1 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -9.22337303685477580800e+18 ORDER BY a
+  }
+} {}
+do_test boundary2-4.66.le.2 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -9.22337303685477580800e+18 ORDER BY a DESC
+  }
+} {}
+do_test boundary2-4.66.le.3 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -9.22337303685477580800e+18 ORDER BY r
+  }
+} {}
+do_test boundary2-4.66.le.4 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -9.22337303685477580800e+18 ORDER BY r DESC
+  }
+} {}
+do_test boundary2-4.66.le.5 {
+  db eval {
+    SELECT a FROM t1 WHERE r <= -9.22337303685477580800e+18 ORDER BY x
+  }
+} {}
+finish_test
diff --git a/test/boundary3.tcl b/test/boundary3.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..5fc26d6113f087f50cf783244c41764417173a23
--- /dev/null
+++ b/test/boundary3.tcl
@@ -0,0 +1,289 @@
+puts {# 2008 December 11
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file is automatically generated from a separate TCL script.
+# This file seeks to exercise integer boundary values.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Many of the boundary tests depend on a working 64-bit implementation.
+if {![working_64bit_int]} { finish_test; return }
+}
+
+expr srand(0)
+
+# Generate interesting boundary numbers
+#
+foreach x {
+  0
+  1
+  0x7f
+  0x7fff
+  0x7fffff
+  0x7fffffff
+  0x7fffffffff
+  0x7fffffffffff
+  0x7fffffffffffff
+  0x7fffffffffffffff
+} {
+  set x [expr {wide($x)}]
+  set boundarynum($x) 1
+  set boundarynum([expr {wide($x+1)}]) 1
+  set boundarynum([expr {wide(-($x+1))}]) 1
+  set boundarynum([expr {wide(-($x+2))}]) 1
+  set boundarynum([expr {wide($x+$x+1)}]) 1
+  set boundarynum([expr {wide($x+$x+2)}]) 1
+}
+set x [expr {wide(127)}]
+for {set i 1} {$i<=9} {incr i} {
+  set boundarynum($x) 1
+  set boundarynum([expr {wide($x+1)}]) 1
+  set x [expr {wide($x*128 + 127)}]
+}
+
+# Scramble the $inlist into a random order.
+#
+proc scramble {inlist} {
+  set y {}
+  foreach x $inlist {
+    lappend y [list [expr {rand()}] $x]
+  }
+  set y [lsort $y]
+  set outlist {}
+  foreach x $y {
+    lappend outlist [lindex $x 1]
+  }
+  return $outlist
+}
+
+# A simple selection sort.  Not trying to be efficient.
+#
+proc sort {inlist} {
+  set outlist {}
+  set mn [lindex $inlist 0]
+  foreach x $inlist {
+    if {$x<$mn} {set mn $x}
+  }
+  set outlist $mn
+  set mx $mn
+  while {1} {
+    set valid 0
+    foreach x $inlist {
+      if {$x>$mx && (!$valid || $mn>$x)} {
+        set mn $x
+        set valid 1
+      }
+    }
+    if {!$valid} break
+    lappend outlist $mn
+    set mx $mn
+  }
+  return $outlist
+}
+
+# Reverse the order of a list
+#
+proc reverse {inlist} {
+  set i [llength $inlist]
+  set outlist {}
+  for {incr i -1} {$i>=0} {incr i -1} {
+    lappend outlist [lindex $inlist $i]
+  }
+  return $outlist
+}
+
+set nums1 [scramble [array names boundarynum]]
+set nums2 [scramble [array names boundarynum]]
+
+set tname boundary3
+puts "do_test $tname-1.1 \173"
+puts "  db eval \173"
+puts "    CREATE TABLE t1(a,x);"
+set a 0
+foreach r $nums1 {
+  incr a
+  set t1ra($r) $a
+  set t1ar($a) $r
+  set x [format %016x [expr {wide($r)}]]
+  set t1rx($r) $x
+  set t1xr($x) $r
+  puts "    INSERT INTO t1(oid,a,x) VALUES($r,$a,'$x');"
+}
+puts "    CREATE INDEX t1i1 ON t1(a);"
+puts "    CREATE INDEX t1i2 ON t1(x);"
+puts "  \175"
+puts "\175 {}"
+
+puts "do_test $tname-1.2 \173"
+puts "  db eval \173"
+puts "    SELECT count(*) FROM t1"
+puts "  \175"
+puts "\175 {64}"
+
+puts "do_test $tname-1.3 \173"
+puts "  db eval \173"
+puts "    CREATE TABLE t2(r,a);"
+puts "    INSERT INTO t2 SELECT rowid, a FROM t1;"
+puts "    CREATE INDEX t2i1 ON t2(r);"
+puts "    CREATE INDEX t2i2 ON t2(a);"
+puts "    INSERT INTO t2 VALUES(9.22337303685477580800e+18,65);"
+set t1ra(9.22337303685477580800e+18) 65
+set t1ar(65) 9.22337303685477580800e+18)
+puts "    INSERT INTO t2 VALUES(-9.22337303685477580800e+18,66);"
+set t1ra(-9.22337303685477580800e+18) 66
+set t1ar(66) -9.22337303685477580800e+18)
+puts "    SELECT count(*) FROM t2;"
+puts "  \175"
+puts "\175 {66}"
+
+set nums3 $nums2
+lappend nums3 9.22337303685477580800e+18
+lappend nums3 -9.22337303685477580800e+18
+
+set i 0
+foreach r $nums3 {
+  incr i
+
+  set r5 $r.5
+  set r0 $r.0
+   if {abs($r)<0x7FFFFFFFFFFFFFFF || $r==-9223372036854775808} {
+    set x $t1rx($r)
+    set a $t1ra($r)
+    puts "do_test $tname-2.$i.1 \173"
+    puts "  db eval \173"
+    puts "    SELECT t1.* FROM t1, t2 WHERE t1.rowid=$r AND t2.a=t1.a"
+    puts "  \175"
+    puts "\175 {$a $x}"
+    puts "do_test $tname-2.$i.2 \173"
+    puts "  db eval \173"
+    puts "    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='$x'"
+    puts "  \175"
+    puts "\175 {$r $a}"
+    puts "do_test $tname-2.$i.3 \173"
+    puts "  db eval \173"
+    puts "    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=$a"
+    puts "  \175"
+    puts "\175 {$r $x}"
+  }
+
+  foreach op {> >= < <=} subno {gt ge lt le} {
+
+    ################################################################ 2.x.y.1
+    set rset {}
+    set aset {}
+    foreach rx $nums2 {
+      if "\$rx $op \$r" {
+        lappend rset $rx
+        lappend aset $t1ra($rx)
+      }
+    }
+    puts "do_test $tname-2.$i.$subno.1 \173"
+    puts "  db eval \173"
+    puts "    SELECT t2.a FROM t1 JOIN t2 USING(a)"
+    puts "     WHERE t1.rowid $op $r ORDER BY t2.a"
+    puts "  \175"
+    puts "\175 {[sort $aset]}"
+  
+    ################################################################ 2.x.y.2
+    puts "do_test $tname-2.$i.$subno.2 \173"
+    puts "  db eval \173"
+    puts "    SELECT t2.a FROM t2 NATURAL JOIN t1"
+    puts "     WHERE t1.rowid $op $r ORDER BY t1.a DESC"
+    puts "  \175"
+    puts "\175 {[reverse [sort $aset]]}"
+
+
+    ################################################################ 2.x.y.3
+    set ax $t1ra($r)
+    set aset {}
+    foreach rx [sort $rset] {
+      lappend aset $t1ra($rx)
+    }
+    puts "do_test $tname-2.$i.$subno.3 \173"
+    puts "  db eval \173"
+    puts "    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid $op t2.r"
+    puts "     WHERE t2.a=$ax"
+    puts "     ORDER BY t1.rowid"
+    puts "  \175"
+    puts "\175 {$aset}"
+  
+    ################################################################ 2.x.y.4
+    set aset {}
+    foreach rx [reverse [sort $rset]] {
+      lappend aset $t1ra($rx)
+    }
+    puts "do_test $tname-2.$i.$subno.4 \173"
+    puts "  db eval \173"
+    puts "    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid $op t2.r"
+    puts "     WHERE t2.a=$ax"
+    puts "     ORDER BY t1.rowid DESC"
+    puts "  \175"
+    puts "\175 {$aset}"
+  
+    ################################################################ 2.x.y.5
+    set aset {}
+    set xset {}
+    foreach rx $rset {
+      lappend xset $t1rx($rx)
+    }
+    foreach x [sort $xset] {
+      set rx $t1xr($x)
+      lappend aset $t1ra($rx)
+    }
+    puts "do_test $tname-2.$i.$subno.5 \173"
+    puts "  db eval \173"
+    puts "    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid $op t2.r"
+    puts "     WHERE t2.a=$ax"
+    puts "     ORDER BY x"
+    puts "  \175"
+    puts "\175 {$aset}"
+  
+    ################################################################ 2.x.y.10
+    if {[string length $r5]>15} continue
+    set rset {}
+    set aset {}
+    foreach rx $nums2 {
+      if "\$rx $op \$r0" {
+        lappend rset $rx
+      }
+    }
+    foreach rx [sort $rset] {
+      lappend aset $t1ra($rx)
+    }
+    puts "do_test $tname-2.$i.$subno.10 \173"
+    puts "  db eval \173"
+    puts "    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid $op CAST(t2.r AS real)"
+    puts "     WHERE t2.a=$ax"
+    puts "     ORDER BY t1.rowid"
+    puts "  \175"
+    puts "\175 {$aset}"
+  
+    ################################################################ 2.x.y.11
+    set aset {}
+    foreach rx [reverse [sort $rset]] {
+      lappend aset $t1ra($rx)
+    }
+    puts "do_test $tname-2.$i.$subno.11 \173"
+    puts "  db eval \173"
+    puts "    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid $op CAST(t2.r AS real)"
+    puts "     WHERE t2.a=$ax"
+    puts "     ORDER BY t1.rowid DESC"
+    puts "  \175"
+    puts "\175 {$aset}"
+  }
+  
+}
+
+
+puts {finish_test}
diff --git a/test/boundary3.test b/test/boundary3.test
new file mode 100644
index 0000000000000000000000000000000000000000..dbe9abfa0a9fb7fc28987dae9b4ca9724c2860ec
--- /dev/null
+++ b/test/boundary3.test
@@ -0,0 +1,12456 @@
+# 2008 December 11
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file is automatically generated from a separate TCL script.
+# This file seeks to exercise integer boundary values.
+#
+# $Id: boundary3.test,v 1.2 2009/01/02 15:45:48 shane Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Many of the boundary tests depend on a working 64-bit implementation.
+if {![working_64bit_int]} { finish_test; return }
+
+do_test boundary3-1.1 {
+  db eval {
+    CREATE TABLE t1(a,x);
+    INSERT INTO t1(oid,a,x) VALUES(-8388609,1,'ffffffffff7fffff');
+    INSERT INTO t1(oid,a,x) VALUES(-36028797018963969,2,'ff7fffffffffffff');
+    INSERT INTO t1(oid,a,x) VALUES(9223372036854775807,3,'7fffffffffffffff');
+    INSERT INTO t1(oid,a,x) VALUES(127,4,'000000000000007f');
+    INSERT INTO t1(oid,a,x) VALUES(3,5,'0000000000000003');
+    INSERT INTO t1(oid,a,x) VALUES(16777216,6,'0000000001000000');
+    INSERT INTO t1(oid,a,x) VALUES(4398046511103,7,'000003ffffffffff');
+    INSERT INTO t1(oid,a,x) VALUES(16383,8,'0000000000003fff');
+    INSERT INTO t1(oid,a,x) VALUES(16777215,9,'0000000000ffffff');
+    INSERT INTO t1(oid,a,x) VALUES(281474976710655,10,'0000ffffffffffff');
+    INSERT INTO t1(oid,a,x) VALUES(-2147483648,11,'ffffffff80000000');
+    INSERT INTO t1(oid,a,x) VALUES(268435455,12,'000000000fffffff');
+    INSERT INTO t1(oid,a,x) VALUES(562949953421311,13,'0001ffffffffffff');
+    INSERT INTO t1(oid,a,x) VALUES(4294967295,14,'00000000ffffffff');
+    INSERT INTO t1(oid,a,x) VALUES(2097151,15,'00000000001fffff');
+    INSERT INTO t1(oid,a,x) VALUES(16384,16,'0000000000004000');
+    INSERT INTO t1(oid,a,x) VALUES(72057594037927935,17,'00ffffffffffffff');
+    INSERT INTO t1(oid,a,x) VALUES(8388607,18,'00000000007fffff');
+    INSERT INTO t1(oid,a,x) VALUES(1099511627776,19,'0000010000000000');
+    INSERT INTO t1(oid,a,x) VALUES(2147483647,20,'000000007fffffff');
+    INSERT INTO t1(oid,a,x) VALUES(-140737488355329,21,'ffff7fffffffffff');
+    INSERT INTO t1(oid,a,x) VALUES(34359738368,22,'0000000800000000');
+    INSERT INTO t1(oid,a,x) VALUES(32767,23,'0000000000007fff');
+    INSERT INTO t1(oid,a,x) VALUES(8388608,24,'0000000000800000');
+    INSERT INTO t1(oid,a,x) VALUES(140737488355327,25,'00007fffffffffff');
+    INSERT INTO t1(oid,a,x) VALUES(281474976710656,26,'0001000000000000');
+    INSERT INTO t1(oid,a,x) VALUES(36028797018963967,27,'007fffffffffffff');
+    INSERT INTO t1(oid,a,x) VALUES(72057594037927936,28,'0100000000000000');
+    INSERT INTO t1(oid,a,x) VALUES(-32769,29,'ffffffffffff7fff');
+    INSERT INTO t1(oid,a,x) VALUES(255,30,'00000000000000ff');
+    INSERT INTO t1(oid,a,x) VALUES(4,31,'0000000000000004');
+    INSERT INTO t1(oid,a,x) VALUES(-32768,32,'ffffffffffff8000');
+    INSERT INTO t1(oid,a,x) VALUES(-2,33,'fffffffffffffffe');
+    INSERT INTO t1(oid,a,x) VALUES(140737488355328,34,'0000800000000000');
+    INSERT INTO t1(oid,a,x) VALUES(549755813888,35,'0000008000000000');
+    INSERT INTO t1(oid,a,x) VALUES(4294967296,36,'0000000100000000');
+    INSERT INTO t1(oid,a,x) VALUES(-8388608,37,'ffffffffff800000');
+    INSERT INTO t1(oid,a,x) VALUES(-1,38,'ffffffffffffffff');
+    INSERT INTO t1(oid,a,x) VALUES(34359738367,39,'00000007ffffffff');
+    INSERT INTO t1(oid,a,x) VALUES(268435456,40,'0000000010000000');
+    INSERT INTO t1(oid,a,x) VALUES(2,41,'0000000000000002');
+    INSERT INTO t1(oid,a,x) VALUES(2097152,42,'0000000000200000');
+    INSERT INTO t1(oid,a,x) VALUES(562949953421312,43,'0002000000000000');
+    INSERT INTO t1(oid,a,x) VALUES(-140737488355328,44,'ffff800000000000');
+    INSERT INTO t1(oid,a,x) VALUES(36028797018963968,45,'0080000000000000');
+    INSERT INTO t1(oid,a,x) VALUES(549755813887,46,'0000007fffffffff');
+    INSERT INTO t1(oid,a,x) VALUES(-2147483649,47,'ffffffff7fffffff');
+    INSERT INTO t1(oid,a,x) VALUES(65535,48,'000000000000ffff');
+    INSERT INTO t1(oid,a,x) VALUES(128,49,'0000000000000080');
+    INSERT INTO t1(oid,a,x) VALUES(32768,50,'0000000000008000');
+    INSERT INTO t1(oid,a,x) VALUES(2147483648,51,'0000000080000000');
+    INSERT INTO t1(oid,a,x) VALUES(-3,52,'fffffffffffffffd');
+    INSERT INTO t1(oid,a,x) VALUES(-128,53,'ffffffffffffff80');
+    INSERT INTO t1(oid,a,x) VALUES(-129,54,'ffffffffffffff7f');
+    INSERT INTO t1(oid,a,x) VALUES(-9223372036854775808,55,'8000000000000000');
+    INSERT INTO t1(oid,a,x) VALUES(4398046511104,56,'0000040000000000');
+    INSERT INTO t1(oid,a,x) VALUES(1099511627775,57,'000000ffffffffff');
+    INSERT INTO t1(oid,a,x) VALUES(-549755813889,58,'ffffff7fffffffff');
+    INSERT INTO t1(oid,a,x) VALUES(0,59,'0000000000000000');
+    INSERT INTO t1(oid,a,x) VALUES(1,60,'0000000000000001');
+    INSERT INTO t1(oid,a,x) VALUES(256,61,'0000000000000100');
+    INSERT INTO t1(oid,a,x) VALUES(65536,62,'0000000000010000');
+    INSERT INTO t1(oid,a,x) VALUES(-549755813888,63,'ffffff8000000000');
+    INSERT INTO t1(oid,a,x) VALUES(-36028797018963968,64,'ff80000000000000');
+    CREATE INDEX t1i1 ON t1(a);
+    CREATE INDEX t1i2 ON t1(x);
+  }
+} {}
+do_test boundary3-1.2 {
+  db eval {
+    SELECT count(*) FROM t1
+  }
+} {64}
+do_test boundary3-1.3 {
+  db eval {
+    CREATE TABLE t2(r,a);
+    INSERT INTO t2 SELECT rowid, a FROM t1;
+    CREATE INDEX t2i1 ON t2(r);
+    CREATE INDEX t2i2 ON t2(a);
+    INSERT INTO t2 VALUES(9.22337303685477580800e+18,65);
+    INSERT INTO t2 VALUES(-9.22337303685477580800e+18,66);
+    SELECT count(*) FROM t2;
+  }
+} {66}
+do_test boundary3-2.1.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=72057594037927935 AND t2.a=t1.a
+  }
+} {17 00ffffffffffffff}
+do_test boundary3-2.1.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='00ffffffffffffff'
+  }
+} {72057594037927935 17}
+do_test boundary3-2.1.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=17
+  }
+} {72057594037927935 00ffffffffffffff}
+do_test boundary3-2.1.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 72057594037927935 ORDER BY t2.a
+  }
+} {3 28}
+do_test boundary3-2.1.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 72057594037927935 ORDER BY t1.a DESC
+  }
+} {28 3}
+do_test boundary3-2.1.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=17
+     ORDER BY t1.rowid
+  }
+} {28 3}
+do_test boundary3-2.1.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=17
+     ORDER BY t1.rowid DESC
+  }
+} {3 28}
+do_test boundary3-2.1.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=17
+     ORDER BY x
+  }
+} {28 3}
+do_test boundary3-2.1.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 72057594037927935 ORDER BY t2.a
+  }
+} {3 17 28}
+do_test boundary3-2.1.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 72057594037927935 ORDER BY t1.a DESC
+  }
+} {28 17 3}
+do_test boundary3-2.1.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=17
+     ORDER BY t1.rowid
+  }
+} {17 28 3}
+do_test boundary3-2.1.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=17
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17}
+do_test boundary3-2.1.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=17
+     ORDER BY x
+  }
+} {17 28 3}
+do_test boundary3-2.1.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 72057594037927935 ORDER BY t2.a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 18 19 20 21 22 23 24 25 26 27 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary3-2.1.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 72057594037927935 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 27 26 25 24 23 22 21 20 19 18 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary3-2.1.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=17
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45}
+do_test boundary3-2.1.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=17
+     ORDER BY t1.rowid DESC
+  }
+} {45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.1.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=17
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.1.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 72057594037927935 ORDER BY t2.a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary3-2.1.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 72057594037927935 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary3-2.1.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=17
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17}
+do_test boundary3-2.1.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=17
+     ORDER BY t1.rowid DESC
+  }
+} {17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.1.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=17
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.2.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=16384 AND t2.a=t1.a
+  }
+} {16 0000000000004000}
+do_test boundary3-2.2.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='0000000000004000'
+  }
+} {16384 16}
+do_test boundary3-2.2.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=16
+  }
+} {16384 0000000000004000}
+do_test boundary3-2.2.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 16384 ORDER BY t2.a
+  }
+} {3 6 7 9 10 12 13 14 15 17 18 19 20 22 23 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 50 51 56 57 62}
+do_test boundary3-2.2.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 16384 ORDER BY t1.a DESC
+  }
+} {62 57 56 51 50 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 23 22 20 19 18 17 15 14 13 12 10 9 7 6 3}
+do_test boundary3-2.2.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=16
+     ORDER BY t1.rowid
+  }
+} {23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.2.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=16
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23}
+do_test boundary3-2.2.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=16
+     ORDER BY x
+  }
+} {23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.2.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=16
+     ORDER BY t1.rowid
+  }
+} {23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.2.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=16
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23}
+do_test boundary3-2.2.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 16384 ORDER BY t2.a
+  }
+} {3 6 7 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 50 51 56 57 62}
+do_test boundary3-2.2.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 16384 ORDER BY t1.a DESC
+  }
+} {62 57 56 51 50 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 7 6 3}
+do_test boundary3-2.2.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=16
+     ORDER BY t1.rowid
+  }
+} {16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.2.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=16
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16}
+do_test boundary3-2.2.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=16
+     ORDER BY x
+  }
+} {16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.2.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=16
+     ORDER BY t1.rowid
+  }
+} {16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.2.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=16
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16}
+do_test boundary3-2.2.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 16384 ORDER BY t2.a
+  }
+} {1 2 4 5 8 11 21 29 30 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 61 63 64}
+do_test boundary3-2.2.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 16384 ORDER BY t1.a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 30 29 21 11 8 5 4 2 1}
+do_test boundary3-2.2.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=16
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8}
+do_test boundary3-2.2.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=16
+     ORDER BY t1.rowid DESC
+  }
+} {8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.2.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=16
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.2.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=16
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8}
+do_test boundary3-2.2.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=16
+     ORDER BY t1.rowid DESC
+  }
+} {8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.2.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 16384 ORDER BY t2.a
+  }
+} {1 2 4 5 8 11 16 21 29 30 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 61 63 64}
+do_test boundary3-2.2.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 16384 ORDER BY t1.a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 30 29 21 16 11 8 5 4 2 1}
+do_test boundary3-2.2.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=16
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16}
+do_test boundary3-2.2.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=16
+     ORDER BY t1.rowid DESC
+  }
+} {16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.2.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=16
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.2.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=16
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16}
+do_test boundary3-2.2.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=16
+     ORDER BY t1.rowid DESC
+  }
+} {16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.3.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=4294967296 AND t2.a=t1.a
+  }
+} {36 0000000100000000}
+do_test boundary3-2.3.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='0000000100000000'
+  }
+} {4294967296 36}
+do_test boundary3-2.3.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=36
+  }
+} {4294967296 0000000100000000}
+do_test boundary3-2.3.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 4294967296 ORDER BY t2.a
+  }
+} {3 7 10 13 17 19 22 25 26 27 28 34 35 39 43 45 46 56 57}
+do_test boundary3-2.3.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 4294967296 ORDER BY t1.a DESC
+  }
+} {57 56 46 45 43 39 35 34 28 27 26 25 22 19 17 13 10 7 3}
+do_test boundary3-2.3.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=36
+     ORDER BY t1.rowid
+  }
+} {39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.3.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=36
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39}
+do_test boundary3-2.3.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=36
+     ORDER BY x
+  }
+} {39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.3.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=36
+     ORDER BY t1.rowid
+  }
+} {39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.3.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=36
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39}
+do_test boundary3-2.3.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 4294967296 ORDER BY t2.a
+  }
+} {3 7 10 13 17 19 22 25 26 27 28 34 35 36 39 43 45 46 56 57}
+do_test boundary3-2.3.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 4294967296 ORDER BY t1.a DESC
+  }
+} {57 56 46 45 43 39 36 35 34 28 27 26 25 22 19 17 13 10 7 3}
+do_test boundary3-2.3.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=36
+     ORDER BY t1.rowid
+  }
+} {36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.3.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=36
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36}
+do_test boundary3-2.3.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=36
+     ORDER BY x
+  }
+} {36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.3.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=36
+     ORDER BY t1.rowid
+  }
+} {36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.3.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=36
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36}
+do_test boundary3-2.3.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 4294967296 ORDER BY t2.a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 23 24 29 30 31 32 33 37 38 40 41 42 44 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary3-2.3.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 4294967296 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 44 42 41 40 38 37 33 32 31 30 29 24 23 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary3-2.3.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=36
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14}
+do_test boundary3-2.3.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=36
+     ORDER BY t1.rowid DESC
+  }
+} {14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.3.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=36
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.3.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=36
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14}
+do_test boundary3-2.3.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=36
+     ORDER BY t1.rowid DESC
+  }
+} {14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.3.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 4294967296 ORDER BY t2.a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 23 24 29 30 31 32 33 36 37 38 40 41 42 44 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary3-2.3.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 4294967296 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 44 42 41 40 38 37 36 33 32 31 30 29 24 23 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary3-2.3.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=36
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36}
+do_test boundary3-2.3.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=36
+     ORDER BY t1.rowid DESC
+  }
+} {36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.3.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=36
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.3.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=36
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36}
+do_test boundary3-2.3.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=36
+     ORDER BY t1.rowid DESC
+  }
+} {36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.4.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=16777216 AND t2.a=t1.a
+  }
+} {6 0000000001000000}
+do_test boundary3-2.4.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='0000000001000000'
+  }
+} {16777216 6}
+do_test boundary3-2.4.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=6
+  }
+} {16777216 0000000001000000}
+do_test boundary3-2.4.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 16777216 ORDER BY t2.a
+  }
+} {3 7 10 12 13 14 17 19 20 22 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary3-2.4.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 16777216 ORDER BY t1.a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 22 20 19 17 14 13 12 10 7 3}
+do_test boundary3-2.4.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=6
+     ORDER BY t1.rowid
+  }
+} {12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.4.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=6
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12}
+do_test boundary3-2.4.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=6
+     ORDER BY x
+  }
+} {12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.4.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=6
+     ORDER BY t1.rowid
+  }
+} {12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.4.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=6
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12}
+do_test boundary3-2.4.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 16777216 ORDER BY t2.a
+  }
+} {3 6 7 10 12 13 14 17 19 20 22 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary3-2.4.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 16777216 ORDER BY t1.a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 22 20 19 17 14 13 12 10 7 6 3}
+do_test boundary3-2.4.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=6
+     ORDER BY t1.rowid
+  }
+} {6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.4.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=6
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6}
+do_test boundary3-2.4.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=6
+     ORDER BY x
+  }
+} {6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.4.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=6
+     ORDER BY t1.rowid
+  }
+} {6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.4.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=6
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6}
+do_test boundary3-2.4.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 16777216 ORDER BY t2.a
+  }
+} {1 2 4 5 8 9 11 15 16 18 21 23 24 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary3-2.4.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 16777216 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 24 23 21 18 16 15 11 9 8 5 4 2 1}
+do_test boundary3-2.4.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=6
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9}
+do_test boundary3-2.4.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=6
+     ORDER BY t1.rowid DESC
+  }
+} {9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.4.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=6
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.4.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=6
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9}
+do_test boundary3-2.4.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=6
+     ORDER BY t1.rowid DESC
+  }
+} {9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.4.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 16777216 ORDER BY t2.a
+  }
+} {1 2 4 5 6 8 9 11 15 16 18 21 23 24 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary3-2.4.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 16777216 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 24 23 21 18 16 15 11 9 8 6 5 4 2 1}
+do_test boundary3-2.4.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=6
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6}
+do_test boundary3-2.4.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=6
+     ORDER BY t1.rowid DESC
+  }
+} {6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.4.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=6
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.4.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=6
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6}
+do_test boundary3-2.4.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=6
+     ORDER BY t1.rowid DESC
+  }
+} {6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.5.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=-32769 AND t2.a=t1.a
+  }
+} {29 ffffffffffff7fff}
+do_test boundary3-2.5.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='ffffffffffff7fff'
+  }
+} {-32769 29}
+do_test boundary3-2.5.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=29
+  }
+} {-32769 ffffffffffff7fff}
+do_test boundary3-2.5.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > -32769 ORDER BY t2.a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 32 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary3-2.5.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > -32769 ORDER BY t1.a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 32 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary3-2.5.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=29
+     ORDER BY t1.rowid
+  }
+} {32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.5.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=29
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32}
+do_test boundary3-2.5.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=29
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 32 54 53 52 33 38}
+do_test boundary3-2.5.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=29
+     ORDER BY t1.rowid
+  }
+} {32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.5.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=29
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32}
+do_test boundary3-2.5.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= -32769 ORDER BY t2.a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary3-2.5.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= -32769 ORDER BY t1.a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary3-2.5.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=29
+     ORDER BY t1.rowid
+  }
+} {29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.5.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=29
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29}
+do_test boundary3-2.5.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=29
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 29 32 54 53 52 33 38}
+do_test boundary3-2.5.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=29
+     ORDER BY t1.rowid
+  }
+} {29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.5.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=29
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29}
+do_test boundary3-2.5.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < -32769 ORDER BY t2.a
+  }
+} {1 2 11 21 37 44 47 55 58 63 64}
+do_test boundary3-2.5.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < -32769 ORDER BY t1.a DESC
+  }
+} {64 63 58 55 47 44 37 21 11 2 1}
+do_test boundary3-2.5.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=29
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37}
+do_test boundary3-2.5.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=29
+     ORDER BY t1.rowid DESC
+  }
+} {37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.5.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=29
+     ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37}
+do_test boundary3-2.5.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=29
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37}
+do_test boundary3-2.5.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=29
+     ORDER BY t1.rowid DESC
+  }
+} {37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.5.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= -32769 ORDER BY t2.a
+  }
+} {1 2 11 21 29 37 44 47 55 58 63 64}
+do_test boundary3-2.5.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= -32769 ORDER BY t1.a DESC
+  }
+} {64 63 58 55 47 44 37 29 21 11 2 1}
+do_test boundary3-2.5.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=29
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29}
+do_test boundary3-2.5.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=29
+     ORDER BY t1.rowid DESC
+  }
+} {29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.5.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=29
+     ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29}
+do_test boundary3-2.5.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=29
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29}
+do_test boundary3-2.5.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=29
+     ORDER BY t1.rowid DESC
+  }
+} {29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.6.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=-140737488355329 AND t2.a=t1.a
+  }
+} {21 ffff7fffffffffff}
+do_test boundary3-2.6.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='ffff7fffffffffff'
+  }
+} {-140737488355329 21}
+do_test boundary3-2.6.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=21
+  }
+} {-140737488355329 ffff7fffffffffff}
+do_test boundary3-2.6.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > -140737488355329 ORDER BY t2.a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 56 57 58 59 60 61 62 63}
+do_test boundary3-2.6.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > -140737488355329 ORDER BY t1.a DESC
+  }
+} {63 62 61 60 59 58 57 56 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary3-2.6.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=21
+     ORDER BY t1.rowid
+  }
+} {44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.6.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=21
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44}
+do_test boundary3-2.6.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=21
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.6.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= -140737488355329 ORDER BY t2.a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 56 57 58 59 60 61 62 63}
+do_test boundary3-2.6.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= -140737488355329 ORDER BY t1.a DESC
+  }
+} {63 62 61 60 59 58 57 56 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary3-2.6.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=21
+     ORDER BY t1.rowid
+  }
+} {21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.6.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=21
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21}
+do_test boundary3-2.6.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=21
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.6.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < -140737488355329 ORDER BY t2.a
+  }
+} {2 55 64}
+do_test boundary3-2.6.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < -140737488355329 ORDER BY t1.a DESC
+  }
+} {64 55 2}
+do_test boundary3-2.6.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=21
+     ORDER BY t1.rowid
+  }
+} {55 2 64}
+do_test boundary3-2.6.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=21
+     ORDER BY t1.rowid DESC
+  }
+} {64 2 55}
+do_test boundary3-2.6.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=21
+     ORDER BY x
+  }
+} {55 2 64}
+do_test boundary3-2.6.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= -140737488355329 ORDER BY t2.a
+  }
+} {2 21 55 64}
+do_test boundary3-2.6.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= -140737488355329 ORDER BY t1.a DESC
+  }
+} {64 55 21 2}
+do_test boundary3-2.6.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=21
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21}
+do_test boundary3-2.6.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=21
+     ORDER BY t1.rowid DESC
+  }
+} {21 64 2 55}
+do_test boundary3-2.6.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=21
+     ORDER BY x
+  }
+} {55 2 64 21}
+do_test boundary3-2.7.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=2 AND t2.a=t1.a
+  }
+} {41 0000000000000002}
+do_test boundary3-2.7.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='0000000000000002'
+  }
+} {2 41}
+do_test boundary3-2.7.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=41
+  }
+} {2 0000000000000002}
+do_test boundary3-2.7.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 2 ORDER BY t2.a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 39 40 42 43 45 46 48 49 50 51 56 57 61 62}
+do_test boundary3-2.7.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 2 ORDER BY t1.a DESC
+  }
+} {62 61 57 56 51 50 49 48 46 45 43 42 40 39 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary3-2.7.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=41
+     ORDER BY t1.rowid
+  }
+} {5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.7.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=41
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5}
+do_test boundary3-2.7.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=41
+     ORDER BY x
+  }
+} {5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.7.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=41
+     ORDER BY t1.rowid
+  }
+} {5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.7.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=41
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5}
+do_test boundary3-2.7.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 2 ORDER BY t2.a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 39 40 41 42 43 45 46 48 49 50 51 56 57 61 62}
+do_test boundary3-2.7.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 2 ORDER BY t1.a DESC
+  }
+} {62 61 57 56 51 50 49 48 46 45 43 42 41 40 39 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary3-2.7.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=41
+     ORDER BY t1.rowid
+  }
+} {41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.7.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=41
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41}
+do_test boundary3-2.7.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=41
+     ORDER BY x
+  }
+} {41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.7.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=41
+     ORDER BY t1.rowid
+  }
+} {41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.7.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=41
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41}
+do_test boundary3-2.7.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 2 ORDER BY t2.a
+  }
+} {1 2 11 21 29 32 33 37 38 44 47 52 53 54 55 58 59 60 63 64}
+do_test boundary3-2.7.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 2 ORDER BY t1.a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 47 44 38 37 33 32 29 21 11 2 1}
+do_test boundary3-2.7.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=41
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60}
+do_test boundary3-2.7.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=41
+     ORDER BY t1.rowid DESC
+  }
+} {60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.7.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=41
+     ORDER BY x
+  }
+} {59 60 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.7.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=41
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60}
+do_test boundary3-2.7.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=41
+     ORDER BY t1.rowid DESC
+  }
+} {60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.7.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 2 ORDER BY t2.a
+  }
+} {1 2 11 21 29 32 33 37 38 41 44 47 52 53 54 55 58 59 60 63 64}
+do_test boundary3-2.7.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 2 ORDER BY t1.a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 47 44 41 38 37 33 32 29 21 11 2 1}
+do_test boundary3-2.7.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=41
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41}
+do_test boundary3-2.7.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=41
+     ORDER BY t1.rowid DESC
+  }
+} {41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.7.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=41
+     ORDER BY x
+  }
+} {59 60 41 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.7.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=41
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41}
+do_test boundary3-2.7.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=41
+     ORDER BY t1.rowid DESC
+  }
+} {41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.8.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=4 AND t2.a=t1.a
+  }
+} {31 0000000000000004}
+do_test boundary3-2.8.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='0000000000000004'
+  }
+} {4 31}
+do_test boundary3-2.8.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=31
+  }
+} {4 0000000000000004}
+do_test boundary3-2.8.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 4 ORDER BY t2.a
+  }
+} {3 4 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 34 35 36 39 40 42 43 45 46 48 49 50 51 56 57 61 62}
+do_test boundary3-2.8.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 4 ORDER BY t1.a DESC
+  }
+} {62 61 57 56 51 50 49 48 46 45 43 42 40 39 36 35 34 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 4 3}
+do_test boundary3-2.8.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=31
+     ORDER BY t1.rowid
+  }
+} {4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.8.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=31
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4}
+do_test boundary3-2.8.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=31
+     ORDER BY x
+  }
+} {4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.8.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=31
+     ORDER BY t1.rowid
+  }
+} {4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.8.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=31
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4}
+do_test boundary3-2.8.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 4 ORDER BY t2.a
+  }
+} {3 4 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 39 40 42 43 45 46 48 49 50 51 56 57 61 62}
+do_test boundary3-2.8.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 4 ORDER BY t1.a DESC
+  }
+} {62 61 57 56 51 50 49 48 46 45 43 42 40 39 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 4 3}
+do_test boundary3-2.8.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=31
+     ORDER BY t1.rowid
+  }
+} {31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.8.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=31
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31}
+do_test boundary3-2.8.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=31
+     ORDER BY x
+  }
+} {31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.8.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=31
+     ORDER BY t1.rowid
+  }
+} {31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.8.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=31
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31}
+do_test boundary3-2.8.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 4 ORDER BY t2.a
+  }
+} {1 2 5 11 21 29 32 33 37 38 41 44 47 52 53 54 55 58 59 60 63 64}
+do_test boundary3-2.8.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 4 ORDER BY t1.a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 47 44 41 38 37 33 32 29 21 11 5 2 1}
+do_test boundary3-2.8.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=31
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5}
+do_test boundary3-2.8.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=31
+     ORDER BY t1.rowid DESC
+  }
+} {5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.8.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=31
+     ORDER BY x
+  }
+} {59 60 41 5 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.8.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=31
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5}
+do_test boundary3-2.8.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=31
+     ORDER BY t1.rowid DESC
+  }
+} {5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.8.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 4 ORDER BY t2.a
+  }
+} {1 2 5 11 21 29 31 32 33 37 38 41 44 47 52 53 54 55 58 59 60 63 64}
+do_test boundary3-2.8.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 4 ORDER BY t1.a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 47 44 41 38 37 33 32 31 29 21 11 5 2 1}
+do_test boundary3-2.8.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=31
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31}
+do_test boundary3-2.8.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=31
+     ORDER BY t1.rowid DESC
+  }
+} {31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.8.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=31
+     ORDER BY x
+  }
+} {59 60 41 5 31 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.8.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=31
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31}
+do_test boundary3-2.8.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=31
+     ORDER BY t1.rowid DESC
+  }
+} {31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.9.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=562949953421311 AND t2.a=t1.a
+  }
+} {13 0001ffffffffffff}
+do_test boundary3-2.9.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='0001ffffffffffff'
+  }
+} {562949953421311 13}
+do_test boundary3-2.9.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=13
+  }
+} {562949953421311 0001ffffffffffff}
+do_test boundary3-2.9.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 562949953421311 ORDER BY t2.a
+  }
+} {3 17 27 28 43 45}
+do_test boundary3-2.9.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 562949953421311 ORDER BY t1.a DESC
+  }
+} {45 43 28 27 17 3}
+do_test boundary3-2.9.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=13
+     ORDER BY t1.rowid
+  }
+} {43 27 45 17 28 3}
+do_test boundary3-2.9.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=13
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43}
+do_test boundary3-2.9.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=13
+     ORDER BY x
+  }
+} {43 27 45 17 28 3}
+do_test boundary3-2.9.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 562949953421311 ORDER BY t2.a
+  }
+} {3 13 17 27 28 43 45}
+do_test boundary3-2.9.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 562949953421311 ORDER BY t1.a DESC
+  }
+} {45 43 28 27 17 13 3}
+do_test boundary3-2.9.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=13
+     ORDER BY t1.rowid
+  }
+} {13 43 27 45 17 28 3}
+do_test boundary3-2.9.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=13
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13}
+do_test boundary3-2.9.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=13
+     ORDER BY x
+  }
+} {13 43 27 45 17 28 3}
+do_test boundary3-2.9.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 562949953421311 ORDER BY t2.a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 14 15 16 18 19 20 21 22 23 24 25 26 29 30 31 32 33 34 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary3-2.9.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 562949953421311 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 34 33 32 31 30 29 26 25 24 23 22 21 20 19 18 16 15 14 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary3-2.9.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=13
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26}
+do_test boundary3-2.9.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=13
+     ORDER BY t1.rowid DESC
+  }
+} {26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.9.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=13
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.9.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 562949953421311 ORDER BY t2.a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 18 19 20 21 22 23 24 25 26 29 30 31 32 33 34 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary3-2.9.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 562949953421311 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 34 33 32 31 30 29 26 25 24 23 22 21 20 19 18 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary3-2.9.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=13
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13}
+do_test boundary3-2.9.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=13
+     ORDER BY t1.rowid DESC
+  }
+} {13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.9.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=13
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.10.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=256 AND t2.a=t1.a
+  }
+} {61 0000000000000100}
+do_test boundary3-2.10.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='0000000000000100'
+  }
+} {256 61}
+do_test boundary3-2.10.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=61
+  }
+} {256 0000000000000100}
+do_test boundary3-2.10.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 256 ORDER BY t2.a
+  }
+} {3 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 50 51 56 57 62}
+do_test boundary3-2.10.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 256 ORDER BY t1.a DESC
+  }
+} {62 57 56 51 50 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 3}
+do_test boundary3-2.10.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=61
+     ORDER BY t1.rowid
+  }
+} {8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.10.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=61
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8}
+do_test boundary3-2.10.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=61
+     ORDER BY x
+  }
+} {8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.10.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=61
+     ORDER BY t1.rowid
+  }
+} {8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.10.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=61
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8}
+do_test boundary3-2.10.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 256 ORDER BY t2.a
+  }
+} {3 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 50 51 56 57 61 62}
+do_test boundary3-2.10.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 256 ORDER BY t1.a DESC
+  }
+} {62 61 57 56 51 50 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 3}
+do_test boundary3-2.10.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=61
+     ORDER BY t1.rowid
+  }
+} {61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.10.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=61
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61}
+do_test boundary3-2.10.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=61
+     ORDER BY x
+  }
+} {61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.10.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=61
+     ORDER BY t1.rowid
+  }
+} {61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.10.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=61
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61}
+do_test boundary3-2.10.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 256 ORDER BY t2.a
+  }
+} {1 2 4 5 11 21 29 30 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 63 64}
+do_test boundary3-2.10.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 256 ORDER BY t1.a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 30 29 21 11 5 4 2 1}
+do_test boundary3-2.10.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=61
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30}
+do_test boundary3-2.10.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=61
+     ORDER BY t1.rowid DESC
+  }
+} {30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.10.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=61
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.10.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=61
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30}
+do_test boundary3-2.10.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=61
+     ORDER BY t1.rowid DESC
+  }
+} {30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.10.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 256 ORDER BY t2.a
+  }
+} {1 2 4 5 11 21 29 30 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 61 63 64}
+do_test boundary3-2.10.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 256 ORDER BY t1.a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 30 29 21 11 5 4 2 1}
+do_test boundary3-2.10.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=61
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61}
+do_test boundary3-2.10.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=61
+     ORDER BY t1.rowid DESC
+  }
+} {61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.10.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=61
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.10.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=61
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61}
+do_test boundary3-2.10.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=61
+     ORDER BY t1.rowid DESC
+  }
+} {61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.11.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=34359738368 AND t2.a=t1.a
+  }
+} {22 0000000800000000}
+do_test boundary3-2.11.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='0000000800000000'
+  }
+} {34359738368 22}
+do_test boundary3-2.11.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=22
+  }
+} {34359738368 0000000800000000}
+do_test boundary3-2.11.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 34359738368 ORDER BY t2.a
+  }
+} {3 7 10 13 17 19 25 26 27 28 34 35 43 45 46 56 57}
+do_test boundary3-2.11.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 34359738368 ORDER BY t1.a DESC
+  }
+} {57 56 46 45 43 35 34 28 27 26 25 19 17 13 10 7 3}
+do_test boundary3-2.11.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=22
+     ORDER BY t1.rowid
+  }
+} {46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.11.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=22
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46}
+do_test boundary3-2.11.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=22
+     ORDER BY x
+  }
+} {46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.11.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=22
+     ORDER BY t1.rowid
+  }
+} {46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.11.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=22
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46}
+do_test boundary3-2.11.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 34359738368 ORDER BY t2.a
+  }
+} {3 7 10 13 17 19 22 25 26 27 28 34 35 43 45 46 56 57}
+do_test boundary3-2.11.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 34359738368 ORDER BY t1.a DESC
+  }
+} {57 56 46 45 43 35 34 28 27 26 25 22 19 17 13 10 7 3}
+do_test boundary3-2.11.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=22
+     ORDER BY t1.rowid
+  }
+} {22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.11.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=22
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22}
+do_test boundary3-2.11.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=22
+     ORDER BY x
+  }
+} {22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.11.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=22
+     ORDER BY t1.rowid
+  }
+} {22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.11.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=22
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22}
+do_test boundary3-2.11.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 34359738368 ORDER BY t2.a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 23 24 29 30 31 32 33 36 37 38 39 40 41 42 44 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary3-2.11.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 34359738368 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 44 42 41 40 39 38 37 36 33 32 31 30 29 24 23 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary3-2.11.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=22
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39}
+do_test boundary3-2.11.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=22
+     ORDER BY t1.rowid DESC
+  }
+} {39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.11.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=22
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.11.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=22
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39}
+do_test boundary3-2.11.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=22
+     ORDER BY t1.rowid DESC
+  }
+} {39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.11.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 34359738368 ORDER BY t2.a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 22 23 24 29 30 31 32 33 36 37 38 39 40 41 42 44 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary3-2.11.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 34359738368 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 44 42 41 40 39 38 37 36 33 32 31 30 29 24 23 22 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary3-2.11.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=22
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22}
+do_test boundary3-2.11.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=22
+     ORDER BY t1.rowid DESC
+  }
+} {22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.11.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=22
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.11.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=22
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22}
+do_test boundary3-2.11.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=22
+     ORDER BY t1.rowid DESC
+  }
+} {22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.12.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=65536 AND t2.a=t1.a
+  }
+} {62 0000000000010000}
+do_test boundary3-2.12.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='0000000000010000'
+  }
+} {65536 62}
+do_test boundary3-2.12.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=62
+  }
+} {65536 0000000000010000}
+do_test boundary3-2.12.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 65536 ORDER BY t2.a
+  }
+} {3 6 7 9 10 12 13 14 15 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 42 43 45 46 51 56 57}
+do_test boundary3-2.12.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 65536 ORDER BY t1.a DESC
+  }
+} {57 56 51 46 45 43 42 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 15 14 13 12 10 9 7 6 3}
+do_test boundary3-2.12.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=62
+     ORDER BY t1.rowid
+  }
+} {15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.12.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=62
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15}
+do_test boundary3-2.12.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=62
+     ORDER BY x
+  }
+} {15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.12.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=62
+     ORDER BY t1.rowid
+  }
+} {15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.12.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=62
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15}
+do_test boundary3-2.12.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 65536 ORDER BY t2.a
+  }
+} {3 6 7 9 10 12 13 14 15 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 42 43 45 46 51 56 57 62}
+do_test boundary3-2.12.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 65536 ORDER BY t1.a DESC
+  }
+} {62 57 56 51 46 45 43 42 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 15 14 13 12 10 9 7 6 3}
+do_test boundary3-2.12.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=62
+     ORDER BY t1.rowid
+  }
+} {62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.12.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=62
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62}
+do_test boundary3-2.12.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=62
+     ORDER BY x
+  }
+} {62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.12.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=62
+     ORDER BY t1.rowid
+  }
+} {62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.12.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=62
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62}
+do_test boundary3-2.12.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 65536 ORDER BY t2.a
+  }
+} {1 2 4 5 8 11 16 21 23 29 30 31 32 33 37 38 41 44 47 48 49 50 52 53 54 55 58 59 60 61 63 64}
+do_test boundary3-2.12.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 65536 ORDER BY t1.a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 50 49 48 47 44 41 38 37 33 32 31 30 29 23 21 16 11 8 5 4 2 1}
+do_test boundary3-2.12.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=62
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48}
+do_test boundary3-2.12.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=62
+     ORDER BY t1.rowid DESC
+  }
+} {48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.12.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=62
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.12.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=62
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48}
+do_test boundary3-2.12.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=62
+     ORDER BY t1.rowid DESC
+  }
+} {48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.12.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 65536 ORDER BY t2.a
+  }
+} {1 2 4 5 8 11 16 21 23 29 30 31 32 33 37 38 41 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary3-2.12.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 65536 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 41 38 37 33 32 31 30 29 23 21 16 11 8 5 4 2 1}
+do_test boundary3-2.12.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=62
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62}
+do_test boundary3-2.12.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=62
+     ORDER BY t1.rowid DESC
+  }
+} {62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.12.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=62
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.12.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=62
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62}
+do_test boundary3-2.12.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=62
+     ORDER BY t1.rowid DESC
+  }
+} {62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.13.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=268435456 AND t2.a=t1.a
+  }
+} {40 0000000010000000}
+do_test boundary3-2.13.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='0000000010000000'
+  }
+} {268435456 40}
+do_test boundary3-2.13.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=40
+  }
+} {268435456 0000000010000000}
+do_test boundary3-2.13.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 268435456 ORDER BY t2.a
+  }
+} {3 7 10 13 14 17 19 20 22 25 26 27 28 34 35 36 39 43 45 46 51 56 57}
+do_test boundary3-2.13.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 268435456 ORDER BY t1.a DESC
+  }
+} {57 56 51 46 45 43 39 36 35 34 28 27 26 25 22 20 19 17 14 13 10 7 3}
+do_test boundary3-2.13.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=40
+     ORDER BY t1.rowid
+  }
+} {20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.13.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=40
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20}
+do_test boundary3-2.13.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=40
+     ORDER BY x
+  }
+} {20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.13.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=40
+     ORDER BY t1.rowid
+  }
+} {20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.13.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=40
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20}
+do_test boundary3-2.13.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 268435456 ORDER BY t2.a
+  }
+} {3 7 10 13 14 17 19 20 22 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary3-2.13.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 268435456 ORDER BY t1.a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 22 20 19 17 14 13 10 7 3}
+do_test boundary3-2.13.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=40
+     ORDER BY t1.rowid
+  }
+} {40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.13.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=40
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40}
+do_test boundary3-2.13.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=40
+     ORDER BY x
+  }
+} {40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.13.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=40
+     ORDER BY t1.rowid
+  }
+} {40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.13.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=40
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40}
+do_test boundary3-2.13.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 268435456 ORDER BY t2.a
+  }
+} {1 2 4 5 6 8 9 11 12 15 16 18 21 23 24 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary3-2.13.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 268435456 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 24 23 21 18 16 15 12 11 9 8 6 5 4 2 1}
+do_test boundary3-2.13.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=40
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12}
+do_test boundary3-2.13.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=40
+     ORDER BY t1.rowid DESC
+  }
+} {12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.13.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=40
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.13.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=40
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12}
+do_test boundary3-2.13.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=40
+     ORDER BY t1.rowid DESC
+  }
+} {12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.13.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 268435456 ORDER BY t2.a
+  }
+} {1 2 4 5 6 8 9 11 12 15 16 18 21 23 24 29 30 31 32 33 37 38 40 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary3-2.13.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 268435456 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 40 38 37 33 32 31 30 29 24 23 21 18 16 15 12 11 9 8 6 5 4 2 1}
+do_test boundary3-2.13.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=40
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40}
+do_test boundary3-2.13.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=40
+     ORDER BY t1.rowid DESC
+  }
+} {40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.13.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=40
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.13.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=40
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40}
+do_test boundary3-2.13.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=40
+     ORDER BY t1.rowid DESC
+  }
+} {40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.14.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=-140737488355328 AND t2.a=t1.a
+  }
+} {44 ffff800000000000}
+do_test boundary3-2.14.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='ffff800000000000'
+  }
+} {-140737488355328 44}
+do_test boundary3-2.14.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=44
+  }
+} {-140737488355328 ffff800000000000}
+do_test boundary3-2.14.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > -140737488355328 ORDER BY t2.a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 47 48 49 50 51 52 53 54 56 57 58 59 60 61 62 63}
+do_test boundary3-2.14.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > -140737488355328 ORDER BY t1.a DESC
+  }
+} {63 62 61 60 59 58 57 56 54 53 52 51 50 49 48 47 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary3-2.14.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=44
+     ORDER BY t1.rowid
+  }
+} {58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.14.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=44
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58}
+do_test boundary3-2.14.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=44
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.14.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= -140737488355328 ORDER BY t2.a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 56 57 58 59 60 61 62 63}
+do_test boundary3-2.14.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= -140737488355328 ORDER BY t1.a DESC
+  }
+} {63 62 61 60 59 58 57 56 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary3-2.14.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=44
+     ORDER BY t1.rowid
+  }
+} {44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.14.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=44
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44}
+do_test boundary3-2.14.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=44
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.14.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < -140737488355328 ORDER BY t2.a
+  }
+} {2 21 55 64}
+do_test boundary3-2.14.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < -140737488355328 ORDER BY t1.a DESC
+  }
+} {64 55 21 2}
+do_test boundary3-2.14.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=44
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21}
+do_test boundary3-2.14.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=44
+     ORDER BY t1.rowid DESC
+  }
+} {21 64 2 55}
+do_test boundary3-2.14.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=44
+     ORDER BY x
+  }
+} {55 2 64 21}
+do_test boundary3-2.14.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= -140737488355328 ORDER BY t2.a
+  }
+} {2 21 44 55 64}
+do_test boundary3-2.14.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= -140737488355328 ORDER BY t1.a DESC
+  }
+} {64 55 44 21 2}
+do_test boundary3-2.14.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=44
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44}
+do_test boundary3-2.14.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=44
+     ORDER BY t1.rowid DESC
+  }
+} {44 21 64 2 55}
+do_test boundary3-2.14.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=44
+     ORDER BY x
+  }
+} {55 2 64 21 44}
+do_test boundary3-2.15.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=1099511627776 AND t2.a=t1.a
+  }
+} {19 0000010000000000}
+do_test boundary3-2.15.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='0000010000000000'
+  }
+} {1099511627776 19}
+do_test boundary3-2.15.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=19
+  }
+} {1099511627776 0000010000000000}
+do_test boundary3-2.15.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 1099511627776 ORDER BY t2.a
+  }
+} {3 7 10 13 17 25 26 27 28 34 43 45 56}
+do_test boundary3-2.15.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 1099511627776 ORDER BY t1.a DESC
+  }
+} {56 45 43 34 28 27 26 25 17 13 10 7 3}
+do_test boundary3-2.15.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=19
+     ORDER BY t1.rowid
+  }
+} {7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.15.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=19
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7}
+do_test boundary3-2.15.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=19
+     ORDER BY x
+  }
+} {7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.15.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=19
+     ORDER BY t1.rowid
+  }
+} {7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.15.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=19
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7}
+do_test boundary3-2.15.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 1099511627776 ORDER BY t2.a
+  }
+} {3 7 10 13 17 19 25 26 27 28 34 43 45 56}
+do_test boundary3-2.15.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 1099511627776 ORDER BY t1.a DESC
+  }
+} {56 45 43 34 28 27 26 25 19 17 13 10 7 3}
+do_test boundary3-2.15.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=19
+     ORDER BY t1.rowid
+  }
+} {19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.15.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=19
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19}
+do_test boundary3-2.15.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=19
+     ORDER BY x
+  }
+} {19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.15.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=19
+     ORDER BY t1.rowid
+  }
+} {19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.15.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=19
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19}
+do_test boundary3-2.15.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 1099511627776 ORDER BY t2.a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 22 23 24 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 57 58 59 60 61 62 63 64}
+do_test boundary3-2.15.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 1099511627776 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 57 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 24 23 22 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary3-2.15.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=19
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57}
+do_test boundary3-2.15.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=19
+     ORDER BY t1.rowid DESC
+  }
+} {57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.15.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=19
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.15.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=19
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57}
+do_test boundary3-2.15.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=19
+     ORDER BY t1.rowid DESC
+  }
+} {57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.15.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 1099511627776 ORDER BY t2.a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 19 20 21 22 23 24 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 57 58 59 60 61 62 63 64}
+do_test boundary3-2.15.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 1099511627776 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 57 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 24 23 22 21 20 19 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary3-2.15.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=19
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19}
+do_test boundary3-2.15.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=19
+     ORDER BY t1.rowid DESC
+  }
+} {19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.15.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=19
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.15.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=19
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19}
+do_test boundary3-2.15.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=19
+     ORDER BY t1.rowid DESC
+  }
+} {19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.16.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 9223372036854775807 ORDER BY t2.a
+  }
+} {}
+do_test boundary3-2.16.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 9223372036854775807 ORDER BY t1.a DESC
+  }
+} {}
+do_test boundary3-2.16.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=3
+     ORDER BY t1.rowid
+  }
+} {}
+do_test boundary3-2.16.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=3
+     ORDER BY t1.rowid DESC
+  }
+} {}
+do_test boundary3-2.16.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=3
+     ORDER BY x
+  }
+} {}
+do_test boundary3-2.16.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 9223372036854775807 ORDER BY t2.a
+  }
+} {3}
+do_test boundary3-2.16.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 9223372036854775807 ORDER BY t1.a DESC
+  }
+} {3}
+do_test boundary3-2.16.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=3
+     ORDER BY t1.rowid
+  }
+} {3}
+do_test boundary3-2.16.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=3
+     ORDER BY t1.rowid DESC
+  }
+} {3}
+do_test boundary3-2.16.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=3
+     ORDER BY x
+  }
+} {3}
+do_test boundary3-2.16.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 9223372036854775807 ORDER BY t2.a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary3-2.16.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 9223372036854775807 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary3-2.16.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=3
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28}
+do_test boundary3-2.16.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=3
+     ORDER BY t1.rowid DESC
+  }
+} {28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.16.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=3
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.16.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 9223372036854775807 ORDER BY t2.a
+  }
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary3-2.16.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 9223372036854775807 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1}
+do_test boundary3-2.16.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=3
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.16.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=3
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.16.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=3
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.17.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=32768 AND t2.a=t1.a
+  }
+} {50 0000000000008000}
+do_test boundary3-2.17.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='0000000000008000'
+  }
+} {32768 50}
+do_test boundary3-2.17.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=50
+  }
+} {32768 0000000000008000}
+do_test boundary3-2.17.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 32768 ORDER BY t2.a
+  }
+} {3 6 7 9 10 12 13 14 15 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 51 56 57 62}
+do_test boundary3-2.17.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 32768 ORDER BY t1.a DESC
+  }
+} {62 57 56 51 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 15 14 13 12 10 9 7 6 3}
+do_test boundary3-2.17.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=50
+     ORDER BY t1.rowid
+  }
+} {48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.17.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=50
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48}
+do_test boundary3-2.17.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=50
+     ORDER BY x
+  }
+} {48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.17.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=50
+     ORDER BY t1.rowid
+  }
+} {48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.17.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=50
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48}
+do_test boundary3-2.17.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 32768 ORDER BY t2.a
+  }
+} {3 6 7 9 10 12 13 14 15 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 50 51 56 57 62}
+do_test boundary3-2.17.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 32768 ORDER BY t1.a DESC
+  }
+} {62 57 56 51 50 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 15 14 13 12 10 9 7 6 3}
+do_test boundary3-2.17.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=50
+     ORDER BY t1.rowid
+  }
+} {50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.17.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=50
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50}
+do_test boundary3-2.17.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=50
+     ORDER BY x
+  }
+} {50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.17.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=50
+     ORDER BY t1.rowid
+  }
+} {50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.17.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=50
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50}
+do_test boundary3-2.17.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 32768 ORDER BY t2.a
+  }
+} {1 2 4 5 8 11 16 21 23 29 30 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 61 63 64}
+do_test boundary3-2.17.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 32768 ORDER BY t1.a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 30 29 23 21 16 11 8 5 4 2 1}
+do_test boundary3-2.17.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=50
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23}
+do_test boundary3-2.17.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=50
+     ORDER BY t1.rowid DESC
+  }
+} {23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.17.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=50
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.17.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=50
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23}
+do_test boundary3-2.17.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=50
+     ORDER BY t1.rowid DESC
+  }
+} {23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.17.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 32768 ORDER BY t2.a
+  }
+} {1 2 4 5 8 11 16 21 23 29 30 31 32 33 37 38 41 44 47 49 50 52 53 54 55 58 59 60 61 63 64}
+do_test boundary3-2.17.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 32768 ORDER BY t1.a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 50 49 47 44 41 38 37 33 32 31 30 29 23 21 16 11 8 5 4 2 1}
+do_test boundary3-2.17.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=50
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50}
+do_test boundary3-2.17.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=50
+     ORDER BY t1.rowid DESC
+  }
+} {50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.17.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=50
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.17.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=50
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50}
+do_test boundary3-2.17.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=50
+     ORDER BY t1.rowid DESC
+  }
+} {50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.18.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=-36028797018963968 AND t2.a=t1.a
+  }
+} {64 ff80000000000000}
+do_test boundary3-2.18.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='ff80000000000000'
+  }
+} {-36028797018963968 64}
+do_test boundary3-2.18.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=64
+  }
+} {-36028797018963968 ff80000000000000}
+do_test boundary3-2.18.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > -36028797018963968 ORDER BY t2.a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 56 57 58 59 60 61 62 63}
+do_test boundary3-2.18.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > -36028797018963968 ORDER BY t1.a DESC
+  }
+} {63 62 61 60 59 58 57 56 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary3-2.18.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=64
+     ORDER BY t1.rowid
+  }
+} {21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.18.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=64
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21}
+do_test boundary3-2.18.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=64
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.18.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= -36028797018963968 ORDER BY t2.a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 56 57 58 59 60 61 62 63 64}
+do_test boundary3-2.18.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= -36028797018963968 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary3-2.18.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=64
+     ORDER BY t1.rowid
+  }
+} {64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.18.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=64
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64}
+do_test boundary3-2.18.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=64
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.18.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < -36028797018963968 ORDER BY t2.a
+  }
+} {2 55}
+do_test boundary3-2.18.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < -36028797018963968 ORDER BY t1.a DESC
+  }
+} {55 2}
+do_test boundary3-2.18.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=64
+     ORDER BY t1.rowid
+  }
+} {55 2}
+do_test boundary3-2.18.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=64
+     ORDER BY t1.rowid DESC
+  }
+} {2 55}
+do_test boundary3-2.18.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=64
+     ORDER BY x
+  }
+} {55 2}
+do_test boundary3-2.18.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= -36028797018963968 ORDER BY t2.a
+  }
+} {2 55 64}
+do_test boundary3-2.18.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= -36028797018963968 ORDER BY t1.a DESC
+  }
+} {64 55 2}
+do_test boundary3-2.18.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=64
+     ORDER BY t1.rowid
+  }
+} {55 2 64}
+do_test boundary3-2.18.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=64
+     ORDER BY t1.rowid DESC
+  }
+} {64 2 55}
+do_test boundary3-2.18.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=64
+     ORDER BY x
+  }
+} {55 2 64}
+do_test boundary3-2.19.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=65535 AND t2.a=t1.a
+  }
+} {48 000000000000ffff}
+do_test boundary3-2.19.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='000000000000ffff'
+  }
+} {65535 48}
+do_test boundary3-2.19.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=48
+  }
+} {65535 000000000000ffff}
+do_test boundary3-2.19.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 65535 ORDER BY t2.a
+  }
+} {3 6 7 9 10 12 13 14 15 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 42 43 45 46 51 56 57 62}
+do_test boundary3-2.19.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 65535 ORDER BY t1.a DESC
+  }
+} {62 57 56 51 46 45 43 42 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 15 14 13 12 10 9 7 6 3}
+do_test boundary3-2.19.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=48
+     ORDER BY t1.rowid
+  }
+} {62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.19.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=48
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62}
+do_test boundary3-2.19.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=48
+     ORDER BY x
+  }
+} {62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.19.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=48
+     ORDER BY t1.rowid
+  }
+} {62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.19.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=48
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62}
+do_test boundary3-2.19.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 65535 ORDER BY t2.a
+  }
+} {3 6 7 9 10 12 13 14 15 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 51 56 57 62}
+do_test boundary3-2.19.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 65535 ORDER BY t1.a DESC
+  }
+} {62 57 56 51 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 15 14 13 12 10 9 7 6 3}
+do_test boundary3-2.19.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=48
+     ORDER BY t1.rowid
+  }
+} {48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.19.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=48
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48}
+do_test boundary3-2.19.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=48
+     ORDER BY x
+  }
+} {48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.19.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=48
+     ORDER BY t1.rowid
+  }
+} {48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.19.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=48
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48}
+do_test boundary3-2.19.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 65535 ORDER BY t2.a
+  }
+} {1 2 4 5 8 11 16 21 23 29 30 31 32 33 37 38 41 44 47 49 50 52 53 54 55 58 59 60 61 63 64}
+do_test boundary3-2.19.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 65535 ORDER BY t1.a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 50 49 47 44 41 38 37 33 32 31 30 29 23 21 16 11 8 5 4 2 1}
+do_test boundary3-2.19.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=48
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50}
+do_test boundary3-2.19.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=48
+     ORDER BY t1.rowid DESC
+  }
+} {50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.19.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=48
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.19.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=48
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50}
+do_test boundary3-2.19.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=48
+     ORDER BY t1.rowid DESC
+  }
+} {50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.19.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 65535 ORDER BY t2.a
+  }
+} {1 2 4 5 8 11 16 21 23 29 30 31 32 33 37 38 41 44 47 48 49 50 52 53 54 55 58 59 60 61 63 64}
+do_test boundary3-2.19.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 65535 ORDER BY t1.a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 50 49 48 47 44 41 38 37 33 32 31 30 29 23 21 16 11 8 5 4 2 1}
+do_test boundary3-2.19.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=48
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48}
+do_test boundary3-2.19.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=48
+     ORDER BY t1.rowid DESC
+  }
+} {48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.19.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=48
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.19.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=48
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48}
+do_test boundary3-2.19.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=48
+     ORDER BY t1.rowid DESC
+  }
+} {48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.20.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=4294967295 AND t2.a=t1.a
+  }
+} {14 00000000ffffffff}
+do_test boundary3-2.20.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='00000000ffffffff'
+  }
+} {4294967295 14}
+do_test boundary3-2.20.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=14
+  }
+} {4294967295 00000000ffffffff}
+do_test boundary3-2.20.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 4294967295 ORDER BY t2.a
+  }
+} {3 7 10 13 17 19 22 25 26 27 28 34 35 36 39 43 45 46 56 57}
+do_test boundary3-2.20.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 4294967295 ORDER BY t1.a DESC
+  }
+} {57 56 46 45 43 39 36 35 34 28 27 26 25 22 19 17 13 10 7 3}
+do_test boundary3-2.20.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=14
+     ORDER BY t1.rowid
+  }
+} {36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.20.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=14
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36}
+do_test boundary3-2.20.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=14
+     ORDER BY x
+  }
+} {36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.20.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=14
+     ORDER BY t1.rowid
+  }
+} {36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.20.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=14
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36}
+do_test boundary3-2.20.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 4294967295 ORDER BY t2.a
+  }
+} {3 7 10 13 14 17 19 22 25 26 27 28 34 35 36 39 43 45 46 56 57}
+do_test boundary3-2.20.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 4294967295 ORDER BY t1.a DESC
+  }
+} {57 56 46 45 43 39 36 35 34 28 27 26 25 22 19 17 14 13 10 7 3}
+do_test boundary3-2.20.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=14
+     ORDER BY t1.rowid
+  }
+} {14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.20.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=14
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14}
+do_test boundary3-2.20.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=14
+     ORDER BY x
+  }
+} {14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.20.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=14
+     ORDER BY t1.rowid
+  }
+} {14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.20.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=14
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14}
+do_test boundary3-2.20.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 4294967295 ORDER BY t2.a
+  }
+} {1 2 4 5 6 8 9 11 12 15 16 18 20 21 23 24 29 30 31 32 33 37 38 40 41 42 44 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary3-2.20.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 4294967295 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 44 42 41 40 38 37 33 32 31 30 29 24 23 21 20 18 16 15 12 11 9 8 6 5 4 2 1}
+do_test boundary3-2.20.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=14
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51}
+do_test boundary3-2.20.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=14
+     ORDER BY t1.rowid DESC
+  }
+} {51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.20.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=14
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.20.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=14
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51}
+do_test boundary3-2.20.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=14
+     ORDER BY t1.rowid DESC
+  }
+} {51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.20.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 4294967295 ORDER BY t2.a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 23 24 29 30 31 32 33 37 38 40 41 42 44 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary3-2.20.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 4294967295 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 44 42 41 40 38 37 33 32 31 30 29 24 23 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary3-2.20.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=14
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14}
+do_test boundary3-2.20.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=14
+     ORDER BY t1.rowid DESC
+  }
+} {14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.20.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=14
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.20.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=14
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14}
+do_test boundary3-2.20.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=14
+     ORDER BY t1.rowid DESC
+  }
+} {14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.21.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=1099511627775 AND t2.a=t1.a
+  }
+} {57 000000ffffffffff}
+do_test boundary3-2.21.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='000000ffffffffff'
+  }
+} {1099511627775 57}
+do_test boundary3-2.21.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=57
+  }
+} {1099511627775 000000ffffffffff}
+do_test boundary3-2.21.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 1099511627775 ORDER BY t2.a
+  }
+} {3 7 10 13 17 19 25 26 27 28 34 43 45 56}
+do_test boundary3-2.21.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 1099511627775 ORDER BY t1.a DESC
+  }
+} {56 45 43 34 28 27 26 25 19 17 13 10 7 3}
+do_test boundary3-2.21.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=57
+     ORDER BY t1.rowid
+  }
+} {19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.21.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=57
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19}
+do_test boundary3-2.21.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=57
+     ORDER BY x
+  }
+} {19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.21.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=57
+     ORDER BY t1.rowid
+  }
+} {19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.21.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=57
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19}
+do_test boundary3-2.21.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 1099511627775 ORDER BY t2.a
+  }
+} {3 7 10 13 17 19 25 26 27 28 34 43 45 56 57}
+do_test boundary3-2.21.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 1099511627775 ORDER BY t1.a DESC
+  }
+} {57 56 45 43 34 28 27 26 25 19 17 13 10 7 3}
+do_test boundary3-2.21.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=57
+     ORDER BY t1.rowid
+  }
+} {57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.21.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=57
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57}
+do_test boundary3-2.21.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=57
+     ORDER BY x
+  }
+} {57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.21.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=57
+     ORDER BY t1.rowid
+  }
+} {57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.21.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=57
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57}
+do_test boundary3-2.21.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 1099511627775 ORDER BY t2.a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 22 23 24 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary3-2.21.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 1099511627775 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 24 23 22 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary3-2.21.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=57
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35}
+do_test boundary3-2.21.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=57
+     ORDER BY t1.rowid DESC
+  }
+} {35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.21.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=57
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.21.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=57
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35}
+do_test boundary3-2.21.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=57
+     ORDER BY t1.rowid DESC
+  }
+} {35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.21.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 1099511627775 ORDER BY t2.a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 22 23 24 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 57 58 59 60 61 62 63 64}
+do_test boundary3-2.21.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 1099511627775 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 57 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 24 23 22 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary3-2.21.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=57
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57}
+do_test boundary3-2.21.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=57
+     ORDER BY t1.rowid DESC
+  }
+} {57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.21.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=57
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.21.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=57
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57}
+do_test boundary3-2.21.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=57
+     ORDER BY t1.rowid DESC
+  }
+} {57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.22.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=-8388608 AND t2.a=t1.a
+  }
+} {37 ffffffffff800000}
+do_test boundary3-2.22.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='ffffffffff800000'
+  }
+} {-8388608 37}
+do_test boundary3-2.22.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=37
+  }
+} {-8388608 ffffffffff800000}
+do_test boundary3-2.22.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > -8388608 ORDER BY t2.a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary3-2.22.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > -8388608 ORDER BY t1.a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary3-2.22.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=37
+     ORDER BY t1.rowid
+  }
+} {29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.22.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=37
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29}
+do_test boundary3-2.22.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=37
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 29 32 54 53 52 33 38}
+do_test boundary3-2.22.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=37
+     ORDER BY t1.rowid
+  }
+} {29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.22.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=37
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29}
+do_test boundary3-2.22.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= -8388608 ORDER BY t2.a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary3-2.22.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= -8388608 ORDER BY t1.a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary3-2.22.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=37
+     ORDER BY t1.rowid
+  }
+} {37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.22.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=37
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37}
+do_test boundary3-2.22.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=37
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 37 29 32 54 53 52 33 38}
+do_test boundary3-2.22.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=37
+     ORDER BY t1.rowid
+  }
+} {37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.22.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=37
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37}
+do_test boundary3-2.22.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < -8388608 ORDER BY t2.a
+  }
+} {1 2 11 21 44 47 55 58 63 64}
+do_test boundary3-2.22.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < -8388608 ORDER BY t1.a DESC
+  }
+} {64 63 58 55 47 44 21 11 2 1}
+do_test boundary3-2.22.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=37
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1}
+do_test boundary3-2.22.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=37
+     ORDER BY t1.rowid DESC
+  }
+} {1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.22.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=37
+     ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1}
+do_test boundary3-2.22.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=37
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1}
+do_test boundary3-2.22.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=37
+     ORDER BY t1.rowid DESC
+  }
+} {1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.22.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= -8388608 ORDER BY t2.a
+  }
+} {1 2 11 21 37 44 47 55 58 63 64}
+do_test boundary3-2.22.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= -8388608 ORDER BY t1.a DESC
+  }
+} {64 63 58 55 47 44 37 21 11 2 1}
+do_test boundary3-2.22.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=37
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37}
+do_test boundary3-2.22.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=37
+     ORDER BY t1.rowid DESC
+  }
+} {37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.22.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=37
+     ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37}
+do_test boundary3-2.22.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=37
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37}
+do_test boundary3-2.22.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=37
+     ORDER BY t1.rowid DESC
+  }
+} {37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.23.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=549755813888 AND t2.a=t1.a
+  }
+} {35 0000008000000000}
+do_test boundary3-2.23.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='0000008000000000'
+  }
+} {549755813888 35}
+do_test boundary3-2.23.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=35
+  }
+} {549755813888 0000008000000000}
+do_test boundary3-2.23.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 549755813888 ORDER BY t2.a
+  }
+} {3 7 10 13 17 19 25 26 27 28 34 43 45 56 57}
+do_test boundary3-2.23.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 549755813888 ORDER BY t1.a DESC
+  }
+} {57 56 45 43 34 28 27 26 25 19 17 13 10 7 3}
+do_test boundary3-2.23.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=35
+     ORDER BY t1.rowid
+  }
+} {57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.23.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=35
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57}
+do_test boundary3-2.23.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=35
+     ORDER BY x
+  }
+} {57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.23.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=35
+     ORDER BY t1.rowid
+  }
+} {57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.23.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=35
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57}
+do_test boundary3-2.23.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 549755813888 ORDER BY t2.a
+  }
+} {3 7 10 13 17 19 25 26 27 28 34 35 43 45 56 57}
+do_test boundary3-2.23.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 549755813888 ORDER BY t1.a DESC
+  }
+} {57 56 45 43 35 34 28 27 26 25 19 17 13 10 7 3}
+do_test boundary3-2.23.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=35
+     ORDER BY t1.rowid
+  }
+} {35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.23.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=35
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35}
+do_test boundary3-2.23.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=35
+     ORDER BY x
+  }
+} {35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.23.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=35
+     ORDER BY t1.rowid
+  }
+} {35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.23.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=35
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35}
+do_test boundary3-2.23.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 549755813888 ORDER BY t2.a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 22 23 24 29 30 31 32 33 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary3-2.23.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 549755813888 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 33 32 31 30 29 24 23 22 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary3-2.23.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=35
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46}
+do_test boundary3-2.23.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=35
+     ORDER BY t1.rowid DESC
+  }
+} {46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.23.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=35
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.23.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=35
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46}
+do_test boundary3-2.23.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=35
+     ORDER BY t1.rowid DESC
+  }
+} {46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.23.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 549755813888 ORDER BY t2.a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 22 23 24 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary3-2.23.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 549755813888 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 24 23 22 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary3-2.23.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=35
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35}
+do_test boundary3-2.23.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=35
+     ORDER BY t1.rowid DESC
+  }
+} {35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.23.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=35
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.23.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=35
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35}
+do_test boundary3-2.23.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=35
+     ORDER BY t1.rowid DESC
+  }
+} {35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.24.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=8388607 AND t2.a=t1.a
+  }
+} {18 00000000007fffff}
+do_test boundary3-2.24.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='00000000007fffff'
+  }
+} {8388607 18}
+do_test boundary3-2.24.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=18
+  }
+} {8388607 00000000007fffff}
+do_test boundary3-2.24.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 8388607 ORDER BY t2.a
+  }
+} {3 6 7 9 10 12 13 14 17 19 20 22 24 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary3-2.24.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 8388607 ORDER BY t1.a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 24 22 20 19 17 14 13 12 10 9 7 6 3}
+do_test boundary3-2.24.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=18
+     ORDER BY t1.rowid
+  }
+} {24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.24.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=18
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24}
+do_test boundary3-2.24.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=18
+     ORDER BY x
+  }
+} {24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.24.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=18
+     ORDER BY t1.rowid
+  }
+} {24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.24.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=18
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24}
+do_test boundary3-2.24.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 8388607 ORDER BY t2.a
+  }
+} {3 6 7 9 10 12 13 14 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary3-2.24.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 8388607 ORDER BY t1.a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 14 13 12 10 9 7 6 3}
+do_test boundary3-2.24.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=18
+     ORDER BY t1.rowid
+  }
+} {18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.24.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=18
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18}
+do_test boundary3-2.24.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=18
+     ORDER BY x
+  }
+} {18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.24.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=18
+     ORDER BY t1.rowid
+  }
+} {18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.24.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=18
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18}
+do_test boundary3-2.24.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 8388607 ORDER BY t2.a
+  }
+} {1 2 4 5 8 11 15 16 21 23 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary3-2.24.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 8388607 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 23 21 16 15 11 8 5 4 2 1}
+do_test boundary3-2.24.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=18
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42}
+do_test boundary3-2.24.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=18
+     ORDER BY t1.rowid DESC
+  }
+} {42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.24.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=18
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.24.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=18
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42}
+do_test boundary3-2.24.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=18
+     ORDER BY t1.rowid DESC
+  }
+} {42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.24.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 8388607 ORDER BY t2.a
+  }
+} {1 2 4 5 8 11 15 16 18 21 23 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary3-2.24.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 8388607 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 23 21 18 16 15 11 8 5 4 2 1}
+do_test boundary3-2.24.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=18
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18}
+do_test boundary3-2.24.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=18
+     ORDER BY t1.rowid DESC
+  }
+} {18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.24.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=18
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.24.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=18
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18}
+do_test boundary3-2.24.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=18
+     ORDER BY t1.rowid DESC
+  }
+} {18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.25.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=-3 AND t2.a=t1.a
+  }
+} {52 fffffffffffffffd}
+do_test boundary3-2.25.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='fffffffffffffffd'
+  }
+} {-3 52}
+do_test boundary3-2.25.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=52
+  }
+} {-3 fffffffffffffffd}
+do_test boundary3-2.25.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > -3 ORDER BY t2.a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 56 57 59 60 61 62}
+do_test boundary3-2.25.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > -3 ORDER BY t1.a DESC
+  }
+} {62 61 60 59 57 56 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary3-2.25.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=52
+     ORDER BY t1.rowid
+  }
+} {33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.25.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=52
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33}
+do_test boundary3-2.25.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=52
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 33 38}
+do_test boundary3-2.25.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=52
+     ORDER BY t1.rowid
+  }
+} {33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.25.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=52
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33}
+do_test boundary3-2.25.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= -3 ORDER BY t2.a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 52 56 57 59 60 61 62}
+do_test boundary3-2.25.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= -3 ORDER BY t1.a DESC
+  }
+} {62 61 60 59 57 56 52 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary3-2.25.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=52
+     ORDER BY t1.rowid
+  }
+} {52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.25.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=52
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52}
+do_test boundary3-2.25.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=52
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 52 33 38}
+do_test boundary3-2.25.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=52
+     ORDER BY t1.rowid
+  }
+} {52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.25.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=52
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52}
+do_test boundary3-2.25.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < -3 ORDER BY t2.a
+  }
+} {1 2 11 21 29 32 37 44 47 53 54 55 58 63 64}
+do_test boundary3-2.25.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < -3 ORDER BY t1.a DESC
+  }
+} {64 63 58 55 54 53 47 44 37 32 29 21 11 2 1}
+do_test boundary3-2.25.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=52
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53}
+do_test boundary3-2.25.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=52
+     ORDER BY t1.rowid DESC
+  }
+} {53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.25.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=52
+     ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53}
+do_test boundary3-2.25.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=52
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53}
+do_test boundary3-2.25.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=52
+     ORDER BY t1.rowid DESC
+  }
+} {53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.25.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= -3 ORDER BY t2.a
+  }
+} {1 2 11 21 29 32 37 44 47 52 53 54 55 58 63 64}
+do_test boundary3-2.25.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= -3 ORDER BY t1.a DESC
+  }
+} {64 63 58 55 54 53 52 47 44 37 32 29 21 11 2 1}
+do_test boundary3-2.25.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=52
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52}
+do_test boundary3-2.25.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=52
+     ORDER BY t1.rowid DESC
+  }
+} {52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.25.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=52
+     ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52}
+do_test boundary3-2.25.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=52
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52}
+do_test boundary3-2.25.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=52
+     ORDER BY t1.rowid DESC
+  }
+} {52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.26.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=0 AND t2.a=t1.a
+  }
+} {59 0000000000000000}
+do_test boundary3-2.26.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='0000000000000000'
+  }
+} {0 59}
+do_test boundary3-2.26.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=59
+  }
+} {0 0000000000000000}
+do_test boundary3-2.26.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 0 ORDER BY t2.a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 39 40 41 42 43 45 46 48 49 50 51 56 57 60 61 62}
+do_test boundary3-2.26.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 0 ORDER BY t1.a DESC
+  }
+} {62 61 60 57 56 51 50 49 48 46 45 43 42 41 40 39 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary3-2.26.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=59
+     ORDER BY t1.rowid
+  }
+} {60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.26.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=59
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60}
+do_test boundary3-2.26.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=59
+     ORDER BY x
+  }
+} {60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.26.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=59
+     ORDER BY t1.rowid
+  }
+} {60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.26.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=59
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60}
+do_test boundary3-2.26.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 0 ORDER BY t2.a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 39 40 41 42 43 45 46 48 49 50 51 56 57 59 60 61 62}
+do_test boundary3-2.26.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 0 ORDER BY t1.a DESC
+  }
+} {62 61 60 59 57 56 51 50 49 48 46 45 43 42 41 40 39 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary3-2.26.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=59
+     ORDER BY t1.rowid
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.26.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=59
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59}
+do_test boundary3-2.26.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=59
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.26.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=59
+     ORDER BY t1.rowid
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.26.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=59
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59}
+do_test boundary3-2.26.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 0 ORDER BY t2.a
+  }
+} {1 2 11 21 29 32 33 37 38 44 47 52 53 54 55 58 63 64}
+do_test boundary3-2.26.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 0 ORDER BY t1.a DESC
+  }
+} {64 63 58 55 54 53 52 47 44 38 37 33 32 29 21 11 2 1}
+do_test boundary3-2.26.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=59
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.26.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=59
+     ORDER BY t1.rowid DESC
+  }
+} {38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.26.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=59
+     ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.26.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=59
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.26.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=59
+     ORDER BY t1.rowid DESC
+  }
+} {38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.26.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 0 ORDER BY t2.a
+  }
+} {1 2 11 21 29 32 33 37 38 44 47 52 53 54 55 58 59 63 64}
+do_test boundary3-2.26.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 0 ORDER BY t1.a DESC
+  }
+} {64 63 59 58 55 54 53 52 47 44 38 37 33 32 29 21 11 2 1}
+do_test boundary3-2.26.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=59
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59}
+do_test boundary3-2.26.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=59
+     ORDER BY t1.rowid DESC
+  }
+} {59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.26.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=59
+     ORDER BY x
+  }
+} {59 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.26.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=59
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59}
+do_test boundary3-2.26.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=59
+     ORDER BY t1.rowid DESC
+  }
+} {59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.27.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=-1 AND t2.a=t1.a
+  }
+} {38 ffffffffffffffff}
+do_test boundary3-2.27.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='ffffffffffffffff'
+  }
+} {-1 38}
+do_test boundary3-2.27.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=38
+  }
+} {-1 ffffffffffffffff}
+do_test boundary3-2.27.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > -1 ORDER BY t2.a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 39 40 41 42 43 45 46 48 49 50 51 56 57 59 60 61 62}
+do_test boundary3-2.27.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > -1 ORDER BY t1.a DESC
+  }
+} {62 61 60 59 57 56 51 50 49 48 46 45 43 42 41 40 39 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary3-2.27.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=38
+     ORDER BY t1.rowid
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.27.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=38
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59}
+do_test boundary3-2.27.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=38
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.27.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=38
+     ORDER BY t1.rowid
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.27.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=38
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59}
+do_test boundary3-2.27.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= -1 ORDER BY t2.a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 56 57 59 60 61 62}
+do_test boundary3-2.27.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= -1 ORDER BY t1.a DESC
+  }
+} {62 61 60 59 57 56 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary3-2.27.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=38
+     ORDER BY t1.rowid
+  }
+} {38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.27.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=38
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38}
+do_test boundary3-2.27.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=38
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 38}
+do_test boundary3-2.27.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=38
+     ORDER BY t1.rowid
+  }
+} {38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.27.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=38
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38}
+do_test boundary3-2.27.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < -1 ORDER BY t2.a
+  }
+} {1 2 11 21 29 32 33 37 44 47 52 53 54 55 58 63 64}
+do_test boundary3-2.27.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < -1 ORDER BY t1.a DESC
+  }
+} {64 63 58 55 54 53 52 47 44 37 33 32 29 21 11 2 1}
+do_test boundary3-2.27.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=38
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33}
+do_test boundary3-2.27.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=38
+     ORDER BY t1.rowid DESC
+  }
+} {33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.27.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=38
+     ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33}
+do_test boundary3-2.27.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=38
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33}
+do_test boundary3-2.27.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=38
+     ORDER BY t1.rowid DESC
+  }
+} {33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.27.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= -1 ORDER BY t2.a
+  }
+} {1 2 11 21 29 32 33 37 38 44 47 52 53 54 55 58 63 64}
+do_test boundary3-2.27.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= -1 ORDER BY t1.a DESC
+  }
+} {64 63 58 55 54 53 52 47 44 38 37 33 32 29 21 11 2 1}
+do_test boundary3-2.27.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=38
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.27.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=38
+     ORDER BY t1.rowid DESC
+  }
+} {38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.27.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=38
+     ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.27.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=38
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.27.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=38
+     ORDER BY t1.rowid DESC
+  }
+} {38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.28.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=-2 AND t2.a=t1.a
+  }
+} {33 fffffffffffffffe}
+do_test boundary3-2.28.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='fffffffffffffffe'
+  }
+} {-2 33}
+do_test boundary3-2.28.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=33
+  }
+} {-2 fffffffffffffffe}
+do_test boundary3-2.28.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > -2 ORDER BY t2.a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 56 57 59 60 61 62}
+do_test boundary3-2.28.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > -2 ORDER BY t1.a DESC
+  }
+} {62 61 60 59 57 56 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary3-2.28.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=33
+     ORDER BY t1.rowid
+  }
+} {38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.28.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=33
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38}
+do_test boundary3-2.28.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=33
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 38}
+do_test boundary3-2.28.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=33
+     ORDER BY t1.rowid
+  }
+} {38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.28.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=33
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38}
+do_test boundary3-2.28.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= -2 ORDER BY t2.a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 56 57 59 60 61 62}
+do_test boundary3-2.28.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= -2 ORDER BY t1.a DESC
+  }
+} {62 61 60 59 57 56 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary3-2.28.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=33
+     ORDER BY t1.rowid
+  }
+} {33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.28.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=33
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33}
+do_test boundary3-2.28.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=33
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 33 38}
+do_test boundary3-2.28.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=33
+     ORDER BY t1.rowid
+  }
+} {33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.28.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=33
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33}
+do_test boundary3-2.28.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < -2 ORDER BY t2.a
+  }
+} {1 2 11 21 29 32 37 44 47 52 53 54 55 58 63 64}
+do_test boundary3-2.28.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < -2 ORDER BY t1.a DESC
+  }
+} {64 63 58 55 54 53 52 47 44 37 32 29 21 11 2 1}
+do_test boundary3-2.28.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=33
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52}
+do_test boundary3-2.28.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=33
+     ORDER BY t1.rowid DESC
+  }
+} {52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.28.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=33
+     ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52}
+do_test boundary3-2.28.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=33
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52}
+do_test boundary3-2.28.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=33
+     ORDER BY t1.rowid DESC
+  }
+} {52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.28.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= -2 ORDER BY t2.a
+  }
+} {1 2 11 21 29 32 33 37 44 47 52 53 54 55 58 63 64}
+do_test boundary3-2.28.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= -2 ORDER BY t1.a DESC
+  }
+} {64 63 58 55 54 53 52 47 44 37 33 32 29 21 11 2 1}
+do_test boundary3-2.28.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=33
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33}
+do_test boundary3-2.28.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=33
+     ORDER BY t1.rowid DESC
+  }
+} {33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.28.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=33
+     ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33}
+do_test boundary3-2.28.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=33
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33}
+do_test boundary3-2.28.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=33
+     ORDER BY t1.rowid DESC
+  }
+} {33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.29.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=2097152 AND t2.a=t1.a
+  }
+} {42 0000000000200000}
+do_test boundary3-2.29.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='0000000000200000'
+  }
+} {2097152 42}
+do_test boundary3-2.29.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=42
+  }
+} {2097152 0000000000200000}
+do_test boundary3-2.29.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 2097152 ORDER BY t2.a
+  }
+} {3 6 7 9 10 12 13 14 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary3-2.29.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 2097152 ORDER BY t1.a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 14 13 12 10 9 7 6 3}
+do_test boundary3-2.29.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=42
+     ORDER BY t1.rowid
+  }
+} {18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.29.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=42
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18}
+do_test boundary3-2.29.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=42
+     ORDER BY x
+  }
+} {18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.29.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=42
+     ORDER BY t1.rowid
+  }
+} {18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.29.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=42
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18}
+do_test boundary3-2.29.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 2097152 ORDER BY t2.a
+  }
+} {3 6 7 9 10 12 13 14 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 42 43 45 46 51 56 57}
+do_test boundary3-2.29.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 2097152 ORDER BY t1.a DESC
+  }
+} {57 56 51 46 45 43 42 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 14 13 12 10 9 7 6 3}
+do_test boundary3-2.29.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=42
+     ORDER BY t1.rowid
+  }
+} {42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.29.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=42
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42}
+do_test boundary3-2.29.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=42
+     ORDER BY x
+  }
+} {42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.29.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=42
+     ORDER BY t1.rowid
+  }
+} {42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.29.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=42
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42}
+do_test boundary3-2.29.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 2097152 ORDER BY t2.a
+  }
+} {1 2 4 5 8 11 15 16 21 23 29 30 31 32 33 37 38 41 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary3-2.29.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 2097152 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 41 38 37 33 32 31 30 29 23 21 16 15 11 8 5 4 2 1}
+do_test boundary3-2.29.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=42
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15}
+do_test boundary3-2.29.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=42
+     ORDER BY t1.rowid DESC
+  }
+} {15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.29.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=42
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.29.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=42
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15}
+do_test boundary3-2.29.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=42
+     ORDER BY t1.rowid DESC
+  }
+} {15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.29.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 2097152 ORDER BY t2.a
+  }
+} {1 2 4 5 8 11 15 16 21 23 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary3-2.29.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 2097152 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 23 21 16 15 11 8 5 4 2 1}
+do_test boundary3-2.29.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=42
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42}
+do_test boundary3-2.29.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=42
+     ORDER BY t1.rowid DESC
+  }
+} {42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.29.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=42
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.29.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=42
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42}
+do_test boundary3-2.29.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=42
+     ORDER BY t1.rowid DESC
+  }
+} {42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.30.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=128 AND t2.a=t1.a
+  }
+} {49 0000000000000080}
+do_test boundary3-2.30.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='0000000000000080'
+  }
+} {128 49}
+do_test boundary3-2.30.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=49
+  }
+} {128 0000000000000080}
+do_test boundary3-2.30.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 128 ORDER BY t2.a
+  }
+} {3 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 34 35 36 39 40 42 43 45 46 48 50 51 56 57 61 62}
+do_test boundary3-2.30.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 128 ORDER BY t1.a DESC
+  }
+} {62 61 57 56 51 50 48 46 45 43 42 40 39 36 35 34 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 3}
+do_test boundary3-2.30.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=49
+     ORDER BY t1.rowid
+  }
+} {30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.30.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=49
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30}
+do_test boundary3-2.30.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=49
+     ORDER BY x
+  }
+} {30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.30.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=49
+     ORDER BY t1.rowid
+  }
+} {30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.30.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=49
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30}
+do_test boundary3-2.30.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 128 ORDER BY t2.a
+  }
+} {3 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 34 35 36 39 40 42 43 45 46 48 49 50 51 56 57 61 62}
+do_test boundary3-2.30.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 128 ORDER BY t1.a DESC
+  }
+} {62 61 57 56 51 50 49 48 46 45 43 42 40 39 36 35 34 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 3}
+do_test boundary3-2.30.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=49
+     ORDER BY t1.rowid
+  }
+} {49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.30.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=49
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49}
+do_test boundary3-2.30.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=49
+     ORDER BY x
+  }
+} {49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.30.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=49
+     ORDER BY t1.rowid
+  }
+} {49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.30.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=49
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49}
+do_test boundary3-2.30.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 128 ORDER BY t2.a
+  }
+} {1 2 4 5 11 21 29 31 32 33 37 38 41 44 47 52 53 54 55 58 59 60 63 64}
+do_test boundary3-2.30.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 128 ORDER BY t1.a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 47 44 41 38 37 33 32 31 29 21 11 5 4 2 1}
+do_test boundary3-2.30.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=49
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4}
+do_test boundary3-2.30.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=49
+     ORDER BY t1.rowid DESC
+  }
+} {4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.30.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=49
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.30.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=49
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4}
+do_test boundary3-2.30.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=49
+     ORDER BY t1.rowid DESC
+  }
+} {4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.30.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 128 ORDER BY t2.a
+  }
+} {1 2 4 5 11 21 29 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 63 64}
+do_test boundary3-2.30.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 128 ORDER BY t1.a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 29 21 11 5 4 2 1}
+do_test boundary3-2.30.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=49
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49}
+do_test boundary3-2.30.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=49
+     ORDER BY t1.rowid DESC
+  }
+} {49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.30.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=49
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.30.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=49
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49}
+do_test boundary3-2.30.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=49
+     ORDER BY t1.rowid DESC
+  }
+} {49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.31.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=255 AND t2.a=t1.a
+  }
+} {30 00000000000000ff}
+do_test boundary3-2.31.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='00000000000000ff'
+  }
+} {255 30}
+do_test boundary3-2.31.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=30
+  }
+} {255 00000000000000ff}
+do_test boundary3-2.31.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 255 ORDER BY t2.a
+  }
+} {3 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 50 51 56 57 61 62}
+do_test boundary3-2.31.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 255 ORDER BY t1.a DESC
+  }
+} {62 61 57 56 51 50 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 3}
+do_test boundary3-2.31.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=30
+     ORDER BY t1.rowid
+  }
+} {61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.31.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=30
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61}
+do_test boundary3-2.31.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=30
+     ORDER BY x
+  }
+} {61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.31.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=30
+     ORDER BY t1.rowid
+  }
+} {61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.31.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=30
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61}
+do_test boundary3-2.31.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 255 ORDER BY t2.a
+  }
+} {3 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 34 35 36 39 40 42 43 45 46 48 50 51 56 57 61 62}
+do_test boundary3-2.31.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 255 ORDER BY t1.a DESC
+  }
+} {62 61 57 56 51 50 48 46 45 43 42 40 39 36 35 34 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 3}
+do_test boundary3-2.31.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=30
+     ORDER BY t1.rowid
+  }
+} {30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.31.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=30
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30}
+do_test boundary3-2.31.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=30
+     ORDER BY x
+  }
+} {30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.31.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=30
+     ORDER BY t1.rowid
+  }
+} {30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.31.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=30
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30}
+do_test boundary3-2.31.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 255 ORDER BY t2.a
+  }
+} {1 2 4 5 11 21 29 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 63 64}
+do_test boundary3-2.31.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 255 ORDER BY t1.a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 29 21 11 5 4 2 1}
+do_test boundary3-2.31.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=30
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49}
+do_test boundary3-2.31.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=30
+     ORDER BY t1.rowid DESC
+  }
+} {49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.31.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=30
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.31.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=30
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49}
+do_test boundary3-2.31.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=30
+     ORDER BY t1.rowid DESC
+  }
+} {49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.31.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 255 ORDER BY t2.a
+  }
+} {1 2 4 5 11 21 29 30 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 63 64}
+do_test boundary3-2.31.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 255 ORDER BY t1.a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 30 29 21 11 5 4 2 1}
+do_test boundary3-2.31.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=30
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30}
+do_test boundary3-2.31.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=30
+     ORDER BY t1.rowid DESC
+  }
+} {30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.31.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=30
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.31.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=30
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30}
+do_test boundary3-2.31.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=30
+     ORDER BY t1.rowid DESC
+  }
+} {30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.32.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=-2147483648 AND t2.a=t1.a
+  }
+} {11 ffffffff80000000}
+do_test boundary3-2.32.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='ffffffff80000000'
+  }
+} {-2147483648 11}
+do_test boundary3-2.32.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=11
+  }
+} {-2147483648 ffffffff80000000}
+do_test boundary3-2.32.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > -2147483648 ORDER BY t2.a
+  }
+} {1 3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary3-2.32.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > -2147483648 ORDER BY t1.a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3 1}
+do_test boundary3-2.32.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=11
+     ORDER BY t1.rowid
+  }
+} {1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.32.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=11
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1}
+do_test boundary3-2.32.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=11
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.32.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=11
+     ORDER BY t1.rowid
+  }
+} {1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.32.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=11
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1}
+do_test boundary3-2.32.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= -2147483648 ORDER BY t2.a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary3-2.32.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= -2147483648 ORDER BY t1.a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary3-2.32.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=11
+     ORDER BY t1.rowid
+  }
+} {11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.32.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=11
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11}
+do_test boundary3-2.32.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=11
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.32.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=11
+     ORDER BY t1.rowid
+  }
+} {11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.32.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=11
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11}
+do_test boundary3-2.32.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < -2147483648 ORDER BY t2.a
+  }
+} {2 21 44 47 55 58 63 64}
+do_test boundary3-2.32.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < -2147483648 ORDER BY t1.a DESC
+  }
+} {64 63 58 55 47 44 21 2}
+do_test boundary3-2.32.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=11
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47}
+do_test boundary3-2.32.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=11
+     ORDER BY t1.rowid DESC
+  }
+} {47 63 58 44 21 64 2 55}
+do_test boundary3-2.32.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=11
+     ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47}
+do_test boundary3-2.32.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=11
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47}
+do_test boundary3-2.32.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=11
+     ORDER BY t1.rowid DESC
+  }
+} {47 63 58 44 21 64 2 55}
+do_test boundary3-2.32.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= -2147483648 ORDER BY t2.a
+  }
+} {2 11 21 44 47 55 58 63 64}
+do_test boundary3-2.32.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= -2147483648 ORDER BY t1.a DESC
+  }
+} {64 63 58 55 47 44 21 11 2}
+do_test boundary3-2.32.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=11
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11}
+do_test boundary3-2.32.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=11
+     ORDER BY t1.rowid DESC
+  }
+} {11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.32.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=11
+     ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11}
+do_test boundary3-2.32.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=11
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11}
+do_test boundary3-2.32.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=11
+     ORDER BY t1.rowid DESC
+  }
+} {11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.33.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=34359738367 AND t2.a=t1.a
+  }
+} {39 00000007ffffffff}
+do_test boundary3-2.33.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='00000007ffffffff'
+  }
+} {34359738367 39}
+do_test boundary3-2.33.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=39
+  }
+} {34359738367 00000007ffffffff}
+do_test boundary3-2.33.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 34359738367 ORDER BY t2.a
+  }
+} {3 7 10 13 17 19 22 25 26 27 28 34 35 43 45 46 56 57}
+do_test boundary3-2.33.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 34359738367 ORDER BY t1.a DESC
+  }
+} {57 56 46 45 43 35 34 28 27 26 25 22 19 17 13 10 7 3}
+do_test boundary3-2.33.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=39
+     ORDER BY t1.rowid
+  }
+} {22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.33.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=39
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22}
+do_test boundary3-2.33.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=39
+     ORDER BY x
+  }
+} {22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.33.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=39
+     ORDER BY t1.rowid
+  }
+} {22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.33.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=39
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22}
+do_test boundary3-2.33.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 34359738367 ORDER BY t2.a
+  }
+} {3 7 10 13 17 19 22 25 26 27 28 34 35 39 43 45 46 56 57}
+do_test boundary3-2.33.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 34359738367 ORDER BY t1.a DESC
+  }
+} {57 56 46 45 43 39 35 34 28 27 26 25 22 19 17 13 10 7 3}
+do_test boundary3-2.33.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=39
+     ORDER BY t1.rowid
+  }
+} {39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.33.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=39
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39}
+do_test boundary3-2.33.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=39
+     ORDER BY x
+  }
+} {39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.33.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=39
+     ORDER BY t1.rowid
+  }
+} {39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.33.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=39
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39}
+do_test boundary3-2.33.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 34359738367 ORDER BY t2.a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 23 24 29 30 31 32 33 36 37 38 40 41 42 44 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary3-2.33.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 34359738367 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 44 42 41 40 38 37 36 33 32 31 30 29 24 23 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary3-2.33.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=39
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36}
+do_test boundary3-2.33.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=39
+     ORDER BY t1.rowid DESC
+  }
+} {36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.33.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=39
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.33.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=39
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36}
+do_test boundary3-2.33.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=39
+     ORDER BY t1.rowid DESC
+  }
+} {36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.33.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 34359738367 ORDER BY t2.a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 23 24 29 30 31 32 33 36 37 38 39 40 41 42 44 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary3-2.33.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 34359738367 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 44 42 41 40 39 38 37 36 33 32 31 30 29 24 23 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary3-2.33.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=39
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39}
+do_test boundary3-2.33.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=39
+     ORDER BY t1.rowid DESC
+  }
+} {39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.33.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=39
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.33.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=39
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39}
+do_test boundary3-2.33.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=39
+     ORDER BY t1.rowid DESC
+  }
+} {39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.34.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=-549755813889 AND t2.a=t1.a
+  }
+} {58 ffffff7fffffffff}
+do_test boundary3-2.34.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='ffffff7fffffffff'
+  }
+} {-549755813889 58}
+do_test boundary3-2.34.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=58
+  }
+} {-549755813889 ffffff7fffffffff}
+do_test boundary3-2.34.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > -549755813889 ORDER BY t2.a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 47 48 49 50 51 52 53 54 56 57 59 60 61 62 63}
+do_test boundary3-2.34.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > -549755813889 ORDER BY t1.a DESC
+  }
+} {63 62 61 60 59 57 56 54 53 52 51 50 49 48 47 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary3-2.34.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=58
+     ORDER BY t1.rowid
+  }
+} {63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.34.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=58
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63}
+do_test boundary3-2.34.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=58
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.34.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=58
+     ORDER BY t1.rowid
+  }
+} {63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.34.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=58
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63}
+do_test boundary3-2.34.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= -549755813889 ORDER BY t2.a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 47 48 49 50 51 52 53 54 56 57 58 59 60 61 62 63}
+do_test boundary3-2.34.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= -549755813889 ORDER BY t1.a DESC
+  }
+} {63 62 61 60 59 58 57 56 54 53 52 51 50 49 48 47 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary3-2.34.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=58
+     ORDER BY t1.rowid
+  }
+} {58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.34.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=58
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58}
+do_test boundary3-2.34.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=58
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.34.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=58
+     ORDER BY t1.rowid
+  }
+} {58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.34.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=58
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58}
+do_test boundary3-2.34.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < -549755813889 ORDER BY t2.a
+  }
+} {2 21 44 55 64}
+do_test boundary3-2.34.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < -549755813889 ORDER BY t1.a DESC
+  }
+} {64 55 44 21 2}
+do_test boundary3-2.34.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=58
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44}
+do_test boundary3-2.34.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=58
+     ORDER BY t1.rowid DESC
+  }
+} {44 21 64 2 55}
+do_test boundary3-2.34.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=58
+     ORDER BY x
+  }
+} {55 2 64 21 44}
+do_test boundary3-2.34.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=58
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44}
+do_test boundary3-2.34.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=58
+     ORDER BY t1.rowid DESC
+  }
+} {44 21 64 2 55}
+do_test boundary3-2.34.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= -549755813889 ORDER BY t2.a
+  }
+} {2 21 44 55 58 64}
+do_test boundary3-2.34.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= -549755813889 ORDER BY t1.a DESC
+  }
+} {64 58 55 44 21 2}
+do_test boundary3-2.34.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=58
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58}
+do_test boundary3-2.34.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=58
+     ORDER BY t1.rowid DESC
+  }
+} {58 44 21 64 2 55}
+do_test boundary3-2.34.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=58
+     ORDER BY x
+  }
+} {55 2 64 21 44 58}
+do_test boundary3-2.34.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=58
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58}
+do_test boundary3-2.34.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=58
+     ORDER BY t1.rowid DESC
+  }
+} {58 44 21 64 2 55}
+do_test boundary3-2.35.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=-32768 AND t2.a=t1.a
+  }
+} {32 ffffffffffff8000}
+do_test boundary3-2.35.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='ffffffffffff8000'
+  }
+} {-32768 32}
+do_test boundary3-2.35.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=32
+  }
+} {-32768 ffffffffffff8000}
+do_test boundary3-2.35.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > -32768 ORDER BY t2.a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary3-2.35.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > -32768 ORDER BY t1.a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary3-2.35.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=32
+     ORDER BY t1.rowid
+  }
+} {54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.35.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=32
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54}
+do_test boundary3-2.35.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=32
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 54 53 52 33 38}
+do_test boundary3-2.35.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=32
+     ORDER BY t1.rowid
+  }
+} {54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.35.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=32
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54}
+do_test boundary3-2.35.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= -32768 ORDER BY t2.a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 32 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary3-2.35.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= -32768 ORDER BY t1.a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 32 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary3-2.35.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=32
+     ORDER BY t1.rowid
+  }
+} {32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.35.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=32
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32}
+do_test boundary3-2.35.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=32
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 32 54 53 52 33 38}
+do_test boundary3-2.35.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=32
+     ORDER BY t1.rowid
+  }
+} {32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.35.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=32
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32}
+do_test boundary3-2.35.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < -32768 ORDER BY t2.a
+  }
+} {1 2 11 21 29 37 44 47 55 58 63 64}
+do_test boundary3-2.35.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < -32768 ORDER BY t1.a DESC
+  }
+} {64 63 58 55 47 44 37 29 21 11 2 1}
+do_test boundary3-2.35.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=32
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29}
+do_test boundary3-2.35.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=32
+     ORDER BY t1.rowid DESC
+  }
+} {29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.35.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=32
+     ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29}
+do_test boundary3-2.35.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=32
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29}
+do_test boundary3-2.35.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=32
+     ORDER BY t1.rowid DESC
+  }
+} {29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.35.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= -32768 ORDER BY t2.a
+  }
+} {1 2 11 21 29 32 37 44 47 55 58 63 64}
+do_test boundary3-2.35.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= -32768 ORDER BY t1.a DESC
+  }
+} {64 63 58 55 47 44 37 32 29 21 11 2 1}
+do_test boundary3-2.35.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=32
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32}
+do_test boundary3-2.35.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=32
+     ORDER BY t1.rowid DESC
+  }
+} {32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.35.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=32
+     ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32}
+do_test boundary3-2.35.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=32
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32}
+do_test boundary3-2.35.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=32
+     ORDER BY t1.rowid DESC
+  }
+} {32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.36.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=2147483647 AND t2.a=t1.a
+  }
+} {20 000000007fffffff}
+do_test boundary3-2.36.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='000000007fffffff'
+  }
+} {2147483647 20}
+do_test boundary3-2.36.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=20
+  }
+} {2147483647 000000007fffffff}
+do_test boundary3-2.36.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 2147483647 ORDER BY t2.a
+  }
+} {3 7 10 13 14 17 19 22 25 26 27 28 34 35 36 39 43 45 46 51 56 57}
+do_test boundary3-2.36.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 2147483647 ORDER BY t1.a DESC
+  }
+} {57 56 51 46 45 43 39 36 35 34 28 27 26 25 22 19 17 14 13 10 7 3}
+do_test boundary3-2.36.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=20
+     ORDER BY t1.rowid
+  }
+} {51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.36.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=20
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51}
+do_test boundary3-2.36.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=20
+     ORDER BY x
+  }
+} {51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.36.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=20
+     ORDER BY t1.rowid
+  }
+} {51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.36.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=20
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51}
+do_test boundary3-2.36.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 2147483647 ORDER BY t2.a
+  }
+} {3 7 10 13 14 17 19 20 22 25 26 27 28 34 35 36 39 43 45 46 51 56 57}
+do_test boundary3-2.36.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 2147483647 ORDER BY t1.a DESC
+  }
+} {57 56 51 46 45 43 39 36 35 34 28 27 26 25 22 20 19 17 14 13 10 7 3}
+do_test boundary3-2.36.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=20
+     ORDER BY t1.rowid
+  }
+} {20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.36.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=20
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20}
+do_test boundary3-2.36.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=20
+     ORDER BY x
+  }
+} {20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.36.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=20
+     ORDER BY t1.rowid
+  }
+} {20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.36.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=20
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20}
+do_test boundary3-2.36.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 2147483647 ORDER BY t2.a
+  }
+} {1 2 4 5 6 8 9 11 12 15 16 18 21 23 24 29 30 31 32 33 37 38 40 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary3-2.36.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 2147483647 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 40 38 37 33 32 31 30 29 24 23 21 18 16 15 12 11 9 8 6 5 4 2 1}
+do_test boundary3-2.36.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=20
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40}
+do_test boundary3-2.36.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=20
+     ORDER BY t1.rowid DESC
+  }
+} {40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.36.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=20
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.36.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=20
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40}
+do_test boundary3-2.36.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=20
+     ORDER BY t1.rowid DESC
+  }
+} {40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.36.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 2147483647 ORDER BY t2.a
+  }
+} {1 2 4 5 6 8 9 11 12 15 16 18 20 21 23 24 29 30 31 32 33 37 38 40 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary3-2.36.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 2147483647 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 40 38 37 33 32 31 30 29 24 23 21 20 18 16 15 12 11 9 8 6 5 4 2 1}
+do_test boundary3-2.36.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=20
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20}
+do_test boundary3-2.36.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=20
+     ORDER BY t1.rowid DESC
+  }
+} {20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.36.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=20
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.36.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=20
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20}
+do_test boundary3-2.36.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=20
+     ORDER BY t1.rowid DESC
+  }
+} {20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.37.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=-129 AND t2.a=t1.a
+  }
+} {54 ffffffffffffff7f}
+do_test boundary3-2.37.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='ffffffffffffff7f'
+  }
+} {-129 54}
+do_test boundary3-2.37.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=54
+  }
+} {-129 ffffffffffffff7f}
+do_test boundary3-2.37.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > -129 ORDER BY t2.a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 52 53 56 57 59 60 61 62}
+do_test boundary3-2.37.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > -129 ORDER BY t1.a DESC
+  }
+} {62 61 60 59 57 56 53 52 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary3-2.37.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=54
+     ORDER BY t1.rowid
+  }
+} {53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.37.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=54
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53}
+do_test boundary3-2.37.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=54
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 53 52 33 38}
+do_test boundary3-2.37.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=54
+     ORDER BY t1.rowid
+  }
+} {53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.37.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=54
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53}
+do_test boundary3-2.37.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= -129 ORDER BY t2.a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary3-2.37.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= -129 ORDER BY t1.a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary3-2.37.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=54
+     ORDER BY t1.rowid
+  }
+} {54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.37.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=54
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54}
+do_test boundary3-2.37.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=54
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 54 53 52 33 38}
+do_test boundary3-2.37.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=54
+     ORDER BY t1.rowid
+  }
+} {54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.37.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=54
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54}
+do_test boundary3-2.37.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < -129 ORDER BY t2.a
+  }
+} {1 2 11 21 29 32 37 44 47 55 58 63 64}
+do_test boundary3-2.37.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < -129 ORDER BY t1.a DESC
+  }
+} {64 63 58 55 47 44 37 32 29 21 11 2 1}
+do_test boundary3-2.37.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=54
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32}
+do_test boundary3-2.37.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=54
+     ORDER BY t1.rowid DESC
+  }
+} {32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.37.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=54
+     ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32}
+do_test boundary3-2.37.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=54
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32}
+do_test boundary3-2.37.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=54
+     ORDER BY t1.rowid DESC
+  }
+} {32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.37.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= -129 ORDER BY t2.a
+  }
+} {1 2 11 21 29 32 37 44 47 54 55 58 63 64}
+do_test boundary3-2.37.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= -129 ORDER BY t1.a DESC
+  }
+} {64 63 58 55 54 47 44 37 32 29 21 11 2 1}
+do_test boundary3-2.37.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=54
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54}
+do_test boundary3-2.37.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=54
+     ORDER BY t1.rowid DESC
+  }
+} {54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.37.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=54
+     ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54}
+do_test boundary3-2.37.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=54
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54}
+do_test boundary3-2.37.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=54
+     ORDER BY t1.rowid DESC
+  }
+} {54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.38.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=-128 AND t2.a=t1.a
+  }
+} {53 ffffffffffffff80}
+do_test boundary3-2.38.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='ffffffffffffff80'
+  }
+} {-128 53}
+do_test boundary3-2.38.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=53
+  }
+} {-128 ffffffffffffff80}
+do_test boundary3-2.38.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > -128 ORDER BY t2.a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 52 56 57 59 60 61 62}
+do_test boundary3-2.38.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > -128 ORDER BY t1.a DESC
+  }
+} {62 61 60 59 57 56 52 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary3-2.38.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=53
+     ORDER BY t1.rowid
+  }
+} {52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.38.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=53
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52}
+do_test boundary3-2.38.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=53
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 52 33 38}
+do_test boundary3-2.38.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=53
+     ORDER BY t1.rowid
+  }
+} {52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.38.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=53
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52}
+do_test boundary3-2.38.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= -128 ORDER BY t2.a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 33 34 35 36 38 39 40 41 42 43 45 46 48 49 50 51 52 53 56 57 59 60 61 62}
+do_test boundary3-2.38.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= -128 ORDER BY t1.a DESC
+  }
+} {62 61 60 59 57 56 53 52 51 50 49 48 46 45 43 42 41 40 39 38 36 35 34 33 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary3-2.38.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=53
+     ORDER BY t1.rowid
+  }
+} {53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.38.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=53
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53}
+do_test boundary3-2.38.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=53
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 53 52 33 38}
+do_test boundary3-2.38.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=53
+     ORDER BY t1.rowid
+  }
+} {53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.38.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=53
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53}
+do_test boundary3-2.38.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < -128 ORDER BY t2.a
+  }
+} {1 2 11 21 29 32 37 44 47 54 55 58 63 64}
+do_test boundary3-2.38.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < -128 ORDER BY t1.a DESC
+  }
+} {64 63 58 55 54 47 44 37 32 29 21 11 2 1}
+do_test boundary3-2.38.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=53
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54}
+do_test boundary3-2.38.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=53
+     ORDER BY t1.rowid DESC
+  }
+} {54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.38.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=53
+     ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54}
+do_test boundary3-2.38.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=53
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54}
+do_test boundary3-2.38.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=53
+     ORDER BY t1.rowid DESC
+  }
+} {54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.38.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= -128 ORDER BY t2.a
+  }
+} {1 2 11 21 29 32 37 44 47 53 54 55 58 63 64}
+do_test boundary3-2.38.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= -128 ORDER BY t1.a DESC
+  }
+} {64 63 58 55 54 53 47 44 37 32 29 21 11 2 1}
+do_test boundary3-2.38.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=53
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53}
+do_test boundary3-2.38.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=53
+     ORDER BY t1.rowid DESC
+  }
+} {53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.38.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=53
+     ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53}
+do_test boundary3-2.38.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=53
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53}
+do_test boundary3-2.38.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=53
+     ORDER BY t1.rowid DESC
+  }
+} {53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.39.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=72057594037927936 AND t2.a=t1.a
+  }
+} {28 0100000000000000}
+do_test boundary3-2.39.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='0100000000000000'
+  }
+} {72057594037927936 28}
+do_test boundary3-2.39.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=28
+  }
+} {72057594037927936 0100000000000000}
+do_test boundary3-2.39.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 72057594037927936 ORDER BY t2.a
+  }
+} {3}
+do_test boundary3-2.39.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 72057594037927936 ORDER BY t1.a DESC
+  }
+} {3}
+do_test boundary3-2.39.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=28
+     ORDER BY t1.rowid
+  }
+} {3}
+do_test boundary3-2.39.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=28
+     ORDER BY t1.rowid DESC
+  }
+} {3}
+do_test boundary3-2.39.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=28
+     ORDER BY x
+  }
+} {3}
+do_test boundary3-2.39.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 72057594037927936 ORDER BY t2.a
+  }
+} {3 28}
+do_test boundary3-2.39.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 72057594037927936 ORDER BY t1.a DESC
+  }
+} {28 3}
+do_test boundary3-2.39.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=28
+     ORDER BY t1.rowid
+  }
+} {28 3}
+do_test boundary3-2.39.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=28
+     ORDER BY t1.rowid DESC
+  }
+} {3 28}
+do_test boundary3-2.39.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=28
+     ORDER BY x
+  }
+} {28 3}
+do_test boundary3-2.39.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 72057594037927936 ORDER BY t2.a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary3-2.39.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 72057594037927936 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary3-2.39.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=28
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17}
+do_test boundary3-2.39.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=28
+     ORDER BY t1.rowid DESC
+  }
+} {17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.39.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=28
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.39.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 72057594037927936 ORDER BY t2.a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary3-2.39.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 72057594037927936 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary3-2.39.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=28
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28}
+do_test boundary3-2.39.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=28
+     ORDER BY t1.rowid DESC
+  }
+} {28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.39.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=28
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.40.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=2147483648 AND t2.a=t1.a
+  }
+} {51 0000000080000000}
+do_test boundary3-2.40.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='0000000080000000'
+  }
+} {2147483648 51}
+do_test boundary3-2.40.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=51
+  }
+} {2147483648 0000000080000000}
+do_test boundary3-2.40.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 2147483648 ORDER BY t2.a
+  }
+} {3 7 10 13 14 17 19 22 25 26 27 28 34 35 36 39 43 45 46 56 57}
+do_test boundary3-2.40.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 2147483648 ORDER BY t1.a DESC
+  }
+} {57 56 46 45 43 39 36 35 34 28 27 26 25 22 19 17 14 13 10 7 3}
+do_test boundary3-2.40.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=51
+     ORDER BY t1.rowid
+  }
+} {14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.40.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=51
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14}
+do_test boundary3-2.40.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=51
+     ORDER BY x
+  }
+} {14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.40.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=51
+     ORDER BY t1.rowid
+  }
+} {14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.40.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=51
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14}
+do_test boundary3-2.40.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 2147483648 ORDER BY t2.a
+  }
+} {3 7 10 13 14 17 19 22 25 26 27 28 34 35 36 39 43 45 46 51 56 57}
+do_test boundary3-2.40.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 2147483648 ORDER BY t1.a DESC
+  }
+} {57 56 51 46 45 43 39 36 35 34 28 27 26 25 22 19 17 14 13 10 7 3}
+do_test boundary3-2.40.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=51
+     ORDER BY t1.rowid
+  }
+} {51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.40.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=51
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51}
+do_test boundary3-2.40.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=51
+     ORDER BY x
+  }
+} {51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.40.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=51
+     ORDER BY t1.rowid
+  }
+} {51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.40.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=51
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51}
+do_test boundary3-2.40.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 2147483648 ORDER BY t2.a
+  }
+} {1 2 4 5 6 8 9 11 12 15 16 18 20 21 23 24 29 30 31 32 33 37 38 40 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary3-2.40.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 2147483648 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 40 38 37 33 32 31 30 29 24 23 21 20 18 16 15 12 11 9 8 6 5 4 2 1}
+do_test boundary3-2.40.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=51
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20}
+do_test boundary3-2.40.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=51
+     ORDER BY t1.rowid DESC
+  }
+} {20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.40.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=51
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.40.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=51
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20}
+do_test boundary3-2.40.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=51
+     ORDER BY t1.rowid DESC
+  }
+} {20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.40.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 2147483648 ORDER BY t2.a
+  }
+} {1 2 4 5 6 8 9 11 12 15 16 18 20 21 23 24 29 30 31 32 33 37 38 40 41 42 44 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary3-2.40.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 2147483648 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 44 42 41 40 38 37 33 32 31 30 29 24 23 21 20 18 16 15 12 11 9 8 6 5 4 2 1}
+do_test boundary3-2.40.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=51
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51}
+do_test boundary3-2.40.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=51
+     ORDER BY t1.rowid DESC
+  }
+} {51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.40.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=51
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.40.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=51
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51}
+do_test boundary3-2.40.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=51
+     ORDER BY t1.rowid DESC
+  }
+} {51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.41.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=549755813887 AND t2.a=t1.a
+  }
+} {46 0000007fffffffff}
+do_test boundary3-2.41.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='0000007fffffffff'
+  }
+} {549755813887 46}
+do_test boundary3-2.41.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=46
+  }
+} {549755813887 0000007fffffffff}
+do_test boundary3-2.41.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 549755813887 ORDER BY t2.a
+  }
+} {3 7 10 13 17 19 25 26 27 28 34 35 43 45 56 57}
+do_test boundary3-2.41.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 549755813887 ORDER BY t1.a DESC
+  }
+} {57 56 45 43 35 34 28 27 26 25 19 17 13 10 7 3}
+do_test boundary3-2.41.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=46
+     ORDER BY t1.rowid
+  }
+} {35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.41.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=46
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35}
+do_test boundary3-2.41.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=46
+     ORDER BY x
+  }
+} {35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.41.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=46
+     ORDER BY t1.rowid
+  }
+} {35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.41.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=46
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35}
+do_test boundary3-2.41.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 549755813887 ORDER BY t2.a
+  }
+} {3 7 10 13 17 19 25 26 27 28 34 35 43 45 46 56 57}
+do_test boundary3-2.41.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 549755813887 ORDER BY t1.a DESC
+  }
+} {57 56 46 45 43 35 34 28 27 26 25 19 17 13 10 7 3}
+do_test boundary3-2.41.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=46
+     ORDER BY t1.rowid
+  }
+} {46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.41.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=46
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46}
+do_test boundary3-2.41.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=46
+     ORDER BY x
+  }
+} {46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.41.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=46
+     ORDER BY t1.rowid
+  }
+} {46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.41.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=46
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46}
+do_test boundary3-2.41.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 549755813887 ORDER BY t2.a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 22 23 24 29 30 31 32 33 36 37 38 39 40 41 42 44 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary3-2.41.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 549755813887 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 44 42 41 40 39 38 37 36 33 32 31 30 29 24 23 22 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary3-2.41.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=46
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22}
+do_test boundary3-2.41.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=46
+     ORDER BY t1.rowid DESC
+  }
+} {22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.41.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=46
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.41.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=46
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22}
+do_test boundary3-2.41.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=46
+     ORDER BY t1.rowid DESC
+  }
+} {22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.41.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 549755813887 ORDER BY t2.a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 20 21 22 23 24 29 30 31 32 33 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary3-2.41.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 549755813887 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 33 32 31 30 29 24 23 22 21 20 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary3-2.41.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=46
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46}
+do_test boundary3-2.41.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=46
+     ORDER BY t1.rowid DESC
+  }
+} {46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.41.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=46
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.41.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=46
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46}
+do_test boundary3-2.41.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=46
+     ORDER BY t1.rowid DESC
+  }
+} {46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.42.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=-549755813888 AND t2.a=t1.a
+  }
+} {63 ffffff8000000000}
+do_test boundary3-2.42.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='ffffff8000000000'
+  }
+} {-549755813888 63}
+do_test boundary3-2.42.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=63
+  }
+} {-549755813888 ffffff8000000000}
+do_test boundary3-2.42.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > -549755813888 ORDER BY t2.a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 47 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary3-2.42.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > -549755813888 ORDER BY t1.a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 47 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary3-2.42.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=63
+     ORDER BY t1.rowid
+  }
+} {47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.42.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=63
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47}
+do_test boundary3-2.42.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=63
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.42.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=63
+     ORDER BY t1.rowid
+  }
+} {47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.42.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=63
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47}
+do_test boundary3-2.42.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= -549755813888 ORDER BY t2.a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 47 48 49 50 51 52 53 54 56 57 59 60 61 62 63}
+do_test boundary3-2.42.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= -549755813888 ORDER BY t1.a DESC
+  }
+} {63 62 61 60 59 57 56 54 53 52 51 50 49 48 47 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary3-2.42.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=63
+     ORDER BY t1.rowid
+  }
+} {63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.42.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=63
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63}
+do_test boundary3-2.42.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=63
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.42.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=63
+     ORDER BY t1.rowid
+  }
+} {63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.42.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=63
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63}
+do_test boundary3-2.42.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < -549755813888 ORDER BY t2.a
+  }
+} {2 21 44 55 58 64}
+do_test boundary3-2.42.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < -549755813888 ORDER BY t1.a DESC
+  }
+} {64 58 55 44 21 2}
+do_test boundary3-2.42.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=63
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58}
+do_test boundary3-2.42.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=63
+     ORDER BY t1.rowid DESC
+  }
+} {58 44 21 64 2 55}
+do_test boundary3-2.42.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=63
+     ORDER BY x
+  }
+} {55 2 64 21 44 58}
+do_test boundary3-2.42.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=63
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58}
+do_test boundary3-2.42.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=63
+     ORDER BY t1.rowid DESC
+  }
+} {58 44 21 64 2 55}
+do_test boundary3-2.42.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= -549755813888 ORDER BY t2.a
+  }
+} {2 21 44 55 58 63 64}
+do_test boundary3-2.42.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= -549755813888 ORDER BY t1.a DESC
+  }
+} {64 63 58 55 44 21 2}
+do_test boundary3-2.42.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=63
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63}
+do_test boundary3-2.42.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=63
+     ORDER BY t1.rowid DESC
+  }
+} {63 58 44 21 64 2 55}
+do_test boundary3-2.42.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=63
+     ORDER BY x
+  }
+} {55 2 64 21 44 58 63}
+do_test boundary3-2.42.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=63
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63}
+do_test boundary3-2.42.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=63
+     ORDER BY t1.rowid DESC
+  }
+} {63 58 44 21 64 2 55}
+do_test boundary3-2.43.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=281474976710655 AND t2.a=t1.a
+  }
+} {10 0000ffffffffffff}
+do_test boundary3-2.43.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='0000ffffffffffff'
+  }
+} {281474976710655 10}
+do_test boundary3-2.43.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=10
+  }
+} {281474976710655 0000ffffffffffff}
+do_test boundary3-2.43.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 281474976710655 ORDER BY t2.a
+  }
+} {3 13 17 26 27 28 43 45}
+do_test boundary3-2.43.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 281474976710655 ORDER BY t1.a DESC
+  }
+} {45 43 28 27 26 17 13 3}
+do_test boundary3-2.43.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=10
+     ORDER BY t1.rowid
+  }
+} {26 13 43 27 45 17 28 3}
+do_test boundary3-2.43.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=10
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26}
+do_test boundary3-2.43.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=10
+     ORDER BY x
+  }
+} {26 13 43 27 45 17 28 3}
+do_test boundary3-2.43.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 281474976710655 ORDER BY t2.a
+  }
+} {3 10 13 17 26 27 28 43 45}
+do_test boundary3-2.43.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 281474976710655 ORDER BY t1.a DESC
+  }
+} {45 43 28 27 26 17 13 10 3}
+do_test boundary3-2.43.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=10
+     ORDER BY t1.rowid
+  }
+} {10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.43.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=10
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10}
+do_test boundary3-2.43.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=10
+     ORDER BY x
+  }
+} {10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.43.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 281474976710655 ORDER BY t2.a
+  }
+} {1 2 4 5 6 7 8 9 11 12 14 15 16 18 19 20 21 22 23 24 25 29 30 31 32 33 34 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary3-2.43.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 281474976710655 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 34 33 32 31 30 29 25 24 23 22 21 20 19 18 16 15 14 12 11 9 8 7 6 5 4 2 1}
+do_test boundary3-2.43.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=10
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34}
+do_test boundary3-2.43.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=10
+     ORDER BY t1.rowid DESC
+  }
+} {34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.43.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=10
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.43.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 281474976710655 ORDER BY t2.a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 14 15 16 18 19 20 21 22 23 24 25 29 30 31 32 33 34 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary3-2.43.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 281474976710655 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 34 33 32 31 30 29 25 24 23 22 21 20 19 18 16 15 14 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary3-2.43.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=10
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10}
+do_test boundary3-2.43.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=10
+     ORDER BY t1.rowid DESC
+  }
+} {10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.43.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=10
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.44.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=4398046511103 AND t2.a=t1.a
+  }
+} {7 000003ffffffffff}
+do_test boundary3-2.44.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='000003ffffffffff'
+  }
+} {4398046511103 7}
+do_test boundary3-2.44.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=7
+  }
+} {4398046511103 000003ffffffffff}
+do_test boundary3-2.44.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 4398046511103 ORDER BY t2.a
+  }
+} {3 10 13 17 25 26 27 28 34 43 45 56}
+do_test boundary3-2.44.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 4398046511103 ORDER BY t1.a DESC
+  }
+} {56 45 43 34 28 27 26 25 17 13 10 3}
+do_test boundary3-2.44.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=7
+     ORDER BY t1.rowid
+  }
+} {56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.44.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=7
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56}
+do_test boundary3-2.44.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=7
+     ORDER BY x
+  }
+} {56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.44.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=7
+     ORDER BY t1.rowid
+  }
+} {56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.44.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=7
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56}
+do_test boundary3-2.44.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 4398046511103 ORDER BY t2.a
+  }
+} {3 7 10 13 17 25 26 27 28 34 43 45 56}
+do_test boundary3-2.44.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 4398046511103 ORDER BY t1.a DESC
+  }
+} {56 45 43 34 28 27 26 25 17 13 10 7 3}
+do_test boundary3-2.44.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=7
+     ORDER BY t1.rowid
+  }
+} {7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.44.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=7
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7}
+do_test boundary3-2.44.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=7
+     ORDER BY x
+  }
+} {7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.44.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=7
+     ORDER BY t1.rowid
+  }
+} {7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.44.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=7
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7}
+do_test boundary3-2.44.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 4398046511103 ORDER BY t2.a
+  }
+} {1 2 4 5 6 8 9 11 12 14 15 16 18 19 20 21 22 23 24 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 57 58 59 60 61 62 63 64}
+do_test boundary3-2.44.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 4398046511103 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 57 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 24 23 22 21 20 19 18 16 15 14 12 11 9 8 6 5 4 2 1}
+do_test boundary3-2.44.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=7
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19}
+do_test boundary3-2.44.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=7
+     ORDER BY t1.rowid DESC
+  }
+} {19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.44.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=7
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.44.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=7
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19}
+do_test boundary3-2.44.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=7
+     ORDER BY t1.rowid DESC
+  }
+} {19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.44.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 4398046511103 ORDER BY t2.a
+  }
+} {1 2 4 5 6 7 8 9 11 12 14 15 16 18 19 20 21 22 23 24 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 57 58 59 60 61 62 63 64}
+do_test boundary3-2.44.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 4398046511103 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 57 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 24 23 22 21 20 19 18 16 15 14 12 11 9 8 7 6 5 4 2 1}
+do_test boundary3-2.44.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=7
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7}
+do_test boundary3-2.44.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=7
+     ORDER BY t1.rowid DESC
+  }
+} {7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.44.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=7
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.44.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=7
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7}
+do_test boundary3-2.44.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=7
+     ORDER BY t1.rowid DESC
+  }
+} {7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.45.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=268435455 AND t2.a=t1.a
+  }
+} {12 000000000fffffff}
+do_test boundary3-2.45.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='000000000fffffff'
+  }
+} {268435455 12}
+do_test boundary3-2.45.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=12
+  }
+} {268435455 000000000fffffff}
+do_test boundary3-2.45.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 268435455 ORDER BY t2.a
+  }
+} {3 7 10 13 14 17 19 20 22 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary3-2.45.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 268435455 ORDER BY t1.a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 22 20 19 17 14 13 10 7 3}
+do_test boundary3-2.45.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=12
+     ORDER BY t1.rowid
+  }
+} {40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.45.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=12
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40}
+do_test boundary3-2.45.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=12
+     ORDER BY x
+  }
+} {40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.45.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=12
+     ORDER BY t1.rowid
+  }
+} {40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.45.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=12
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40}
+do_test boundary3-2.45.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 268435455 ORDER BY t2.a
+  }
+} {3 7 10 12 13 14 17 19 20 22 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary3-2.45.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 268435455 ORDER BY t1.a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 22 20 19 17 14 13 12 10 7 3}
+do_test boundary3-2.45.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=12
+     ORDER BY t1.rowid
+  }
+} {12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.45.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=12
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12}
+do_test boundary3-2.45.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=12
+     ORDER BY x
+  }
+} {12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.45.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=12
+     ORDER BY t1.rowid
+  }
+} {12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.45.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=12
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12}
+do_test boundary3-2.45.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 268435455 ORDER BY t2.a
+  }
+} {1 2 4 5 6 8 9 11 15 16 18 21 23 24 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary3-2.45.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 268435455 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 24 23 21 18 16 15 11 9 8 6 5 4 2 1}
+do_test boundary3-2.45.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=12
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6}
+do_test boundary3-2.45.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=12
+     ORDER BY t1.rowid DESC
+  }
+} {6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.45.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=12
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.45.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=12
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6}
+do_test boundary3-2.45.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=12
+     ORDER BY t1.rowid DESC
+  }
+} {6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.45.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 268435455 ORDER BY t2.a
+  }
+} {1 2 4 5 6 8 9 11 12 15 16 18 21 23 24 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary3-2.45.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 268435455 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 24 23 21 18 16 15 12 11 9 8 6 5 4 2 1}
+do_test boundary3-2.45.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=12
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12}
+do_test boundary3-2.45.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=12
+     ORDER BY t1.rowid DESC
+  }
+} {12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.45.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=12
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.45.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=12
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12}
+do_test boundary3-2.45.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=12
+     ORDER BY t1.rowid DESC
+  }
+} {12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.46.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=-9223372036854775808 AND t2.a=t1.a
+  }
+} {55 8000000000000000}
+do_test boundary3-2.46.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='8000000000000000'
+  }
+} {-9223372036854775808 55}
+do_test boundary3-2.46.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=55
+  }
+} {-9223372036854775808 8000000000000000}
+do_test boundary3-2.46.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > -9223372036854775808 ORDER BY t2.a
+  }
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 56 57 58 59 60 61 62 63 64}
+do_test boundary3-2.46.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > -9223372036854775808 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1}
+do_test boundary3-2.46.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=55
+     ORDER BY t1.rowid
+  }
+} {2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.46.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=55
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2}
+do_test boundary3-2.46.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=55
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.46.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= -9223372036854775808 ORDER BY t2.a
+  }
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary3-2.46.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= -9223372036854775808 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1}
+do_test boundary3-2.46.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=55
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.46.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=55
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.46.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=55
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.46.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < -9223372036854775808 ORDER BY t2.a
+  }
+} {}
+do_test boundary3-2.46.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < -9223372036854775808 ORDER BY t1.a DESC
+  }
+} {}
+do_test boundary3-2.46.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=55
+     ORDER BY t1.rowid
+  }
+} {}
+do_test boundary3-2.46.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=55
+     ORDER BY t1.rowid DESC
+  }
+} {}
+do_test boundary3-2.46.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=55
+     ORDER BY x
+  }
+} {}
+do_test boundary3-2.46.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= -9223372036854775808 ORDER BY t2.a
+  }
+} {55}
+do_test boundary3-2.46.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= -9223372036854775808 ORDER BY t1.a DESC
+  }
+} {55}
+do_test boundary3-2.46.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=55
+     ORDER BY t1.rowid
+  }
+} {55}
+do_test boundary3-2.46.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=55
+     ORDER BY t1.rowid DESC
+  }
+} {55}
+do_test boundary3-2.46.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=55
+     ORDER BY x
+  }
+} {55}
+do_test boundary3-2.47.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=562949953421312 AND t2.a=t1.a
+  }
+} {43 0002000000000000}
+do_test boundary3-2.47.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='0002000000000000'
+  }
+} {562949953421312 43}
+do_test boundary3-2.47.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=43
+  }
+} {562949953421312 0002000000000000}
+do_test boundary3-2.47.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 562949953421312 ORDER BY t2.a
+  }
+} {3 17 27 28 45}
+do_test boundary3-2.47.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 562949953421312 ORDER BY t1.a DESC
+  }
+} {45 28 27 17 3}
+do_test boundary3-2.47.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=43
+     ORDER BY t1.rowid
+  }
+} {27 45 17 28 3}
+do_test boundary3-2.47.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=43
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27}
+do_test boundary3-2.47.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=43
+     ORDER BY x
+  }
+} {27 45 17 28 3}
+do_test boundary3-2.47.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 562949953421312 ORDER BY t2.a
+  }
+} {3 17 27 28 43 45}
+do_test boundary3-2.47.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 562949953421312 ORDER BY t1.a DESC
+  }
+} {45 43 28 27 17 3}
+do_test boundary3-2.47.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=43
+     ORDER BY t1.rowid
+  }
+} {43 27 45 17 28 3}
+do_test boundary3-2.47.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=43
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43}
+do_test boundary3-2.47.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=43
+     ORDER BY x
+  }
+} {43 27 45 17 28 3}
+do_test boundary3-2.47.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 562949953421312 ORDER BY t2.a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 18 19 20 21 22 23 24 25 26 29 30 31 32 33 34 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary3-2.47.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 562949953421312 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 34 33 32 31 30 29 26 25 24 23 22 21 20 19 18 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary3-2.47.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=43
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13}
+do_test boundary3-2.47.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=43
+     ORDER BY t1.rowid DESC
+  }
+} {13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.47.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=43
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.47.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 562949953421312 ORDER BY t2.a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 18 19 20 21 22 23 24 25 26 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary3-2.47.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 562949953421312 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 26 25 24 23 22 21 20 19 18 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary3-2.47.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=43
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43}
+do_test boundary3-2.47.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=43
+     ORDER BY t1.rowid DESC
+  }
+} {43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.47.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=43
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.48.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=-8388609 AND t2.a=t1.a
+  }
+} {1 ffffffffff7fffff}
+do_test boundary3-2.48.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='ffffffffff7fffff'
+  }
+} {-8388609 1}
+do_test boundary3-2.48.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=1
+  }
+} {-8388609 ffffffffff7fffff}
+do_test boundary3-2.48.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > -8388609 ORDER BY t2.a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary3-2.48.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > -8388609 ORDER BY t1.a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary3-2.48.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=1
+     ORDER BY t1.rowid
+  }
+} {37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.48.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=1
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37}
+do_test boundary3-2.48.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=1
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 37 29 32 54 53 52 33 38}
+do_test boundary3-2.48.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=1
+     ORDER BY t1.rowid
+  }
+} {37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.48.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=1
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37}
+do_test boundary3-2.48.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= -8388609 ORDER BY t2.a
+  }
+} {1 3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary3-2.48.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= -8388609 ORDER BY t1.a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3 1}
+do_test boundary3-2.48.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=1
+     ORDER BY t1.rowid
+  }
+} {1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.48.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=1
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1}
+do_test boundary3-2.48.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=1
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.48.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=1
+     ORDER BY t1.rowid
+  }
+} {1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.48.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=1
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1}
+do_test boundary3-2.48.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < -8388609 ORDER BY t2.a
+  }
+} {2 11 21 44 47 55 58 63 64}
+do_test boundary3-2.48.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < -8388609 ORDER BY t1.a DESC
+  }
+} {64 63 58 55 47 44 21 11 2}
+do_test boundary3-2.48.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=1
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11}
+do_test boundary3-2.48.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=1
+     ORDER BY t1.rowid DESC
+  }
+} {11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.48.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=1
+     ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11}
+do_test boundary3-2.48.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=1
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11}
+do_test boundary3-2.48.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=1
+     ORDER BY t1.rowid DESC
+  }
+} {11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.48.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= -8388609 ORDER BY t2.a
+  }
+} {1 2 11 21 44 47 55 58 63 64}
+do_test boundary3-2.48.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= -8388609 ORDER BY t1.a DESC
+  }
+} {64 63 58 55 47 44 21 11 2 1}
+do_test boundary3-2.48.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=1
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1}
+do_test boundary3-2.48.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=1
+     ORDER BY t1.rowid DESC
+  }
+} {1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.48.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=1
+     ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47 11 1}
+do_test boundary3-2.48.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=1
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1}
+do_test boundary3-2.48.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=1
+     ORDER BY t1.rowid DESC
+  }
+} {1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.49.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=16777215 AND t2.a=t1.a
+  }
+} {9 0000000000ffffff}
+do_test boundary3-2.49.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='0000000000ffffff'
+  }
+} {16777215 9}
+do_test boundary3-2.49.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=9
+  }
+} {16777215 0000000000ffffff}
+do_test boundary3-2.49.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 16777215 ORDER BY t2.a
+  }
+} {3 6 7 10 12 13 14 17 19 20 22 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary3-2.49.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 16777215 ORDER BY t1.a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 22 20 19 17 14 13 12 10 7 6 3}
+do_test boundary3-2.49.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=9
+     ORDER BY t1.rowid
+  }
+} {6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.49.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=9
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6}
+do_test boundary3-2.49.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=9
+     ORDER BY x
+  }
+} {6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.49.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=9
+     ORDER BY t1.rowid
+  }
+} {6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.49.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=9
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6}
+do_test boundary3-2.49.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 16777215 ORDER BY t2.a
+  }
+} {3 6 7 9 10 12 13 14 17 19 20 22 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary3-2.49.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 16777215 ORDER BY t1.a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 22 20 19 17 14 13 12 10 9 7 6 3}
+do_test boundary3-2.49.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=9
+     ORDER BY t1.rowid
+  }
+} {9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.49.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=9
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9}
+do_test boundary3-2.49.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=9
+     ORDER BY x
+  }
+} {9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.49.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=9
+     ORDER BY t1.rowid
+  }
+} {9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.49.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=9
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9}
+do_test boundary3-2.49.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 16777215 ORDER BY t2.a
+  }
+} {1 2 4 5 8 11 15 16 18 21 23 24 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary3-2.49.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 16777215 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 24 23 21 18 16 15 11 8 5 4 2 1}
+do_test boundary3-2.49.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=9
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24}
+do_test boundary3-2.49.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=9
+     ORDER BY t1.rowid DESC
+  }
+} {24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.49.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=9
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.49.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=9
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24}
+do_test boundary3-2.49.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=9
+     ORDER BY t1.rowid DESC
+  }
+} {24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.49.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 16777215 ORDER BY t2.a
+  }
+} {1 2 4 5 8 9 11 15 16 18 21 23 24 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary3-2.49.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 16777215 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 24 23 21 18 16 15 11 9 8 5 4 2 1}
+do_test boundary3-2.49.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=9
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9}
+do_test boundary3-2.49.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=9
+     ORDER BY t1.rowid DESC
+  }
+} {9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.49.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=9
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.49.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=9
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9}
+do_test boundary3-2.49.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=9
+     ORDER BY t1.rowid DESC
+  }
+} {9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.50.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=8388608 AND t2.a=t1.a
+  }
+} {24 0000000000800000}
+do_test boundary3-2.50.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='0000000000800000'
+  }
+} {8388608 24}
+do_test boundary3-2.50.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=24
+  }
+} {8388608 0000000000800000}
+do_test boundary3-2.50.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 8388608 ORDER BY t2.a
+  }
+} {3 6 7 9 10 12 13 14 17 19 20 22 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary3-2.50.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 8388608 ORDER BY t1.a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 22 20 19 17 14 13 12 10 9 7 6 3}
+do_test boundary3-2.50.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=24
+     ORDER BY t1.rowid
+  }
+} {9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.50.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=24
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9}
+do_test boundary3-2.50.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=24
+     ORDER BY x
+  }
+} {9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.50.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=24
+     ORDER BY t1.rowid
+  }
+} {9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.50.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=24
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9}
+do_test boundary3-2.50.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 8388608 ORDER BY t2.a
+  }
+} {3 6 7 9 10 12 13 14 17 19 20 22 24 25 26 27 28 34 35 36 39 40 43 45 46 51 56 57}
+do_test boundary3-2.50.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 8388608 ORDER BY t1.a DESC
+  }
+} {57 56 51 46 45 43 40 39 36 35 34 28 27 26 25 24 22 20 19 17 14 13 12 10 9 7 6 3}
+do_test boundary3-2.50.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=24
+     ORDER BY t1.rowid
+  }
+} {24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.50.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=24
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24}
+do_test boundary3-2.50.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=24
+     ORDER BY x
+  }
+} {24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.50.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=24
+     ORDER BY t1.rowid
+  }
+} {24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.50.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=24
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24}
+do_test boundary3-2.50.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 8388608 ORDER BY t2.a
+  }
+} {1 2 4 5 8 11 15 16 18 21 23 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary3-2.50.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 8388608 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 23 21 18 16 15 11 8 5 4 2 1}
+do_test boundary3-2.50.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=24
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18}
+do_test boundary3-2.50.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=24
+     ORDER BY t1.rowid DESC
+  }
+} {18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.50.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=24
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.50.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=24
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18}
+do_test boundary3-2.50.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=24
+     ORDER BY t1.rowid DESC
+  }
+} {18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.50.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 8388608 ORDER BY t2.a
+  }
+} {1 2 4 5 8 11 15 16 18 21 23 24 29 30 31 32 33 37 38 41 42 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary3-2.50.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 8388608 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 42 41 38 37 33 32 31 30 29 24 23 21 18 16 15 11 8 5 4 2 1}
+do_test boundary3-2.50.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=24
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24}
+do_test boundary3-2.50.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=24
+     ORDER BY t1.rowid DESC
+  }
+} {24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.50.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=24
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.50.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=24
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24}
+do_test boundary3-2.50.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=24
+     ORDER BY t1.rowid DESC
+  }
+} {24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.51.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=16383 AND t2.a=t1.a
+  }
+} {8 0000000000003fff}
+do_test boundary3-2.51.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='0000000000003fff'
+  }
+} {16383 8}
+do_test boundary3-2.51.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=8
+  }
+} {16383 0000000000003fff}
+do_test boundary3-2.51.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 16383 ORDER BY t2.a
+  }
+} {3 6 7 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 50 51 56 57 62}
+do_test boundary3-2.51.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 16383 ORDER BY t1.a DESC
+  }
+} {62 57 56 51 50 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 7 6 3}
+do_test boundary3-2.51.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=8
+     ORDER BY t1.rowid
+  }
+} {16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.51.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=8
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16}
+do_test boundary3-2.51.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=8
+     ORDER BY x
+  }
+} {16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.51.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=8
+     ORDER BY t1.rowid
+  }
+} {16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.51.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=8
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16}
+do_test boundary3-2.51.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 16383 ORDER BY t2.a
+  }
+} {3 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 50 51 56 57 62}
+do_test boundary3-2.51.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 16383 ORDER BY t1.a DESC
+  }
+} {62 57 56 51 50 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 3}
+do_test boundary3-2.51.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=8
+     ORDER BY t1.rowid
+  }
+} {8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.51.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=8
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8}
+do_test boundary3-2.51.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=8
+     ORDER BY x
+  }
+} {8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.51.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=8
+     ORDER BY t1.rowid
+  }
+} {8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.51.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=8
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8}
+do_test boundary3-2.51.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 16383 ORDER BY t2.a
+  }
+} {1 2 4 5 11 21 29 30 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 61 63 64}
+do_test boundary3-2.51.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 16383 ORDER BY t1.a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 30 29 21 11 5 4 2 1}
+do_test boundary3-2.51.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=8
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61}
+do_test boundary3-2.51.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=8
+     ORDER BY t1.rowid DESC
+  }
+} {61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.51.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=8
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.51.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=8
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61}
+do_test boundary3-2.51.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=8
+     ORDER BY t1.rowid DESC
+  }
+} {61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.51.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 16383 ORDER BY t2.a
+  }
+} {1 2 4 5 8 11 21 29 30 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 61 63 64}
+do_test boundary3-2.51.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 16383 ORDER BY t1.a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 30 29 21 11 8 5 4 2 1}
+do_test boundary3-2.51.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=8
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8}
+do_test boundary3-2.51.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=8
+     ORDER BY t1.rowid DESC
+  }
+} {8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.51.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=8
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.51.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=8
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8}
+do_test boundary3-2.51.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=8
+     ORDER BY t1.rowid DESC
+  }
+} {8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.52.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=140737488355328 AND t2.a=t1.a
+  }
+} {34 0000800000000000}
+do_test boundary3-2.52.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='0000800000000000'
+  }
+} {140737488355328 34}
+do_test boundary3-2.52.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=34
+  }
+} {140737488355328 0000800000000000}
+do_test boundary3-2.52.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 140737488355328 ORDER BY t2.a
+  }
+} {3 10 13 17 26 27 28 43 45}
+do_test boundary3-2.52.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 140737488355328 ORDER BY t1.a DESC
+  }
+} {45 43 28 27 26 17 13 10 3}
+do_test boundary3-2.52.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=34
+     ORDER BY t1.rowid
+  }
+} {10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.52.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=34
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10}
+do_test boundary3-2.52.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=34
+     ORDER BY x
+  }
+} {10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.52.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 140737488355328 ORDER BY t2.a
+  }
+} {3 10 13 17 26 27 28 34 43 45}
+do_test boundary3-2.52.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 140737488355328 ORDER BY t1.a DESC
+  }
+} {45 43 34 28 27 26 17 13 10 3}
+do_test boundary3-2.52.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=34
+     ORDER BY t1.rowid
+  }
+} {34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.52.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=34
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34}
+do_test boundary3-2.52.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=34
+     ORDER BY x
+  }
+} {34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.52.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 140737488355328 ORDER BY t2.a
+  }
+} {1 2 4 5 6 7 8 9 11 12 14 15 16 18 19 20 21 22 23 24 25 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary3-2.52.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 140737488355328 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 25 24 23 22 21 20 19 18 16 15 14 12 11 9 8 7 6 5 4 2 1}
+do_test boundary3-2.52.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=34
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25}
+do_test boundary3-2.52.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=34
+     ORDER BY t1.rowid DESC
+  }
+} {25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.52.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=34
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.52.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 140737488355328 ORDER BY t2.a
+  }
+} {1 2 4 5 6 7 8 9 11 12 14 15 16 18 19 20 21 22 23 24 25 29 30 31 32 33 34 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary3-2.52.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 140737488355328 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 34 33 32 31 30 29 25 24 23 22 21 20 19 18 16 15 14 12 11 9 8 7 6 5 4 2 1}
+do_test boundary3-2.52.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=34
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34}
+do_test boundary3-2.52.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=34
+     ORDER BY t1.rowid DESC
+  }
+} {34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.52.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=34
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.53.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=2097151 AND t2.a=t1.a
+  }
+} {15 00000000001fffff}
+do_test boundary3-2.53.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='00000000001fffff'
+  }
+} {2097151 15}
+do_test boundary3-2.53.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=15
+  }
+} {2097151 00000000001fffff}
+do_test boundary3-2.53.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 2097151 ORDER BY t2.a
+  }
+} {3 6 7 9 10 12 13 14 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 42 43 45 46 51 56 57}
+do_test boundary3-2.53.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 2097151 ORDER BY t1.a DESC
+  }
+} {57 56 51 46 45 43 42 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 14 13 12 10 9 7 6 3}
+do_test boundary3-2.53.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=15
+     ORDER BY t1.rowid
+  }
+} {42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.53.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=15
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42}
+do_test boundary3-2.53.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=15
+     ORDER BY x
+  }
+} {42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.53.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=15
+     ORDER BY t1.rowid
+  }
+} {42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.53.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=15
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42}
+do_test boundary3-2.53.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 2097151 ORDER BY t2.a
+  }
+} {3 6 7 9 10 12 13 14 15 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 42 43 45 46 51 56 57}
+do_test boundary3-2.53.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 2097151 ORDER BY t1.a DESC
+  }
+} {57 56 51 46 45 43 42 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 15 14 13 12 10 9 7 6 3}
+do_test boundary3-2.53.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=15
+     ORDER BY t1.rowid
+  }
+} {15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.53.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=15
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15}
+do_test boundary3-2.53.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=15
+     ORDER BY x
+  }
+} {15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.53.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=15
+     ORDER BY t1.rowid
+  }
+} {15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.53.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=15
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15}
+do_test boundary3-2.53.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 2097151 ORDER BY t2.a
+  }
+} {1 2 4 5 8 11 16 21 23 29 30 31 32 33 37 38 41 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary3-2.53.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 2097151 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 41 38 37 33 32 31 30 29 23 21 16 11 8 5 4 2 1}
+do_test boundary3-2.53.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=15
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62}
+do_test boundary3-2.53.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=15
+     ORDER BY t1.rowid DESC
+  }
+} {62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.53.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=15
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.53.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=15
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62}
+do_test boundary3-2.53.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=15
+     ORDER BY t1.rowid DESC
+  }
+} {62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.53.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 2097151 ORDER BY t2.a
+  }
+} {1 2 4 5 8 11 15 16 21 23 29 30 31 32 33 37 38 41 44 47 48 49 50 52 53 54 55 58 59 60 61 62 63 64}
+do_test boundary3-2.53.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 2097151 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 55 54 53 52 50 49 48 47 44 41 38 37 33 32 31 30 29 23 21 16 15 11 8 5 4 2 1}
+do_test boundary3-2.53.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=15
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15}
+do_test boundary3-2.53.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=15
+     ORDER BY t1.rowid DESC
+  }
+} {15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.53.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=15
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.53.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=15
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15}
+do_test boundary3-2.53.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=15
+     ORDER BY t1.rowid DESC
+  }
+} {15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.54.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=140737488355327 AND t2.a=t1.a
+  }
+} {25 00007fffffffffff}
+do_test boundary3-2.54.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='00007fffffffffff'
+  }
+} {140737488355327 25}
+do_test boundary3-2.54.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=25
+  }
+} {140737488355327 00007fffffffffff}
+do_test boundary3-2.54.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 140737488355327 ORDER BY t2.a
+  }
+} {3 10 13 17 26 27 28 34 43 45}
+do_test boundary3-2.54.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 140737488355327 ORDER BY t1.a DESC
+  }
+} {45 43 34 28 27 26 17 13 10 3}
+do_test boundary3-2.54.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=25
+     ORDER BY t1.rowid
+  }
+} {34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.54.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=25
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34}
+do_test boundary3-2.54.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=25
+     ORDER BY x
+  }
+} {34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.54.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 140737488355327 ORDER BY t2.a
+  }
+} {3 10 13 17 25 26 27 28 34 43 45}
+do_test boundary3-2.54.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 140737488355327 ORDER BY t1.a DESC
+  }
+} {45 43 34 28 27 26 25 17 13 10 3}
+do_test boundary3-2.54.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=25
+     ORDER BY t1.rowid
+  }
+} {25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.54.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=25
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25}
+do_test boundary3-2.54.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=25
+     ORDER BY x
+  }
+} {25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.54.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 140737488355327 ORDER BY t2.a
+  }
+} {1 2 4 5 6 7 8 9 11 12 14 15 16 18 19 20 21 22 23 24 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary3-2.54.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 140737488355327 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 24 23 22 21 20 19 18 16 15 14 12 11 9 8 7 6 5 4 2 1}
+do_test boundary3-2.54.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=25
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56}
+do_test boundary3-2.54.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=25
+     ORDER BY t1.rowid DESC
+  }
+} {56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.54.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=25
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.54.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 140737488355327 ORDER BY t2.a
+  }
+} {1 2 4 5 6 7 8 9 11 12 14 15 16 18 19 20 21 22 23 24 25 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary3-2.54.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 140737488355327 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 25 24 23 22 21 20 19 18 16 15 14 12 11 9 8 7 6 5 4 2 1}
+do_test boundary3-2.54.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=25
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25}
+do_test boundary3-2.54.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=25
+     ORDER BY t1.rowid DESC
+  }
+} {25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.54.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=25
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.55.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=281474976710656 AND t2.a=t1.a
+  }
+} {26 0001000000000000}
+do_test boundary3-2.55.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='0001000000000000'
+  }
+} {281474976710656 26}
+do_test boundary3-2.55.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=26
+  }
+} {281474976710656 0001000000000000}
+do_test boundary3-2.55.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 281474976710656 ORDER BY t2.a
+  }
+} {3 13 17 27 28 43 45}
+do_test boundary3-2.55.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 281474976710656 ORDER BY t1.a DESC
+  }
+} {45 43 28 27 17 13 3}
+do_test boundary3-2.55.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=26
+     ORDER BY t1.rowid
+  }
+} {13 43 27 45 17 28 3}
+do_test boundary3-2.55.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=26
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13}
+do_test boundary3-2.55.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=26
+     ORDER BY x
+  }
+} {13 43 27 45 17 28 3}
+do_test boundary3-2.55.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 281474976710656 ORDER BY t2.a
+  }
+} {3 13 17 26 27 28 43 45}
+do_test boundary3-2.55.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 281474976710656 ORDER BY t1.a DESC
+  }
+} {45 43 28 27 26 17 13 3}
+do_test boundary3-2.55.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=26
+     ORDER BY t1.rowid
+  }
+} {26 13 43 27 45 17 28 3}
+do_test boundary3-2.55.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=26
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26}
+do_test boundary3-2.55.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=26
+     ORDER BY x
+  }
+} {26 13 43 27 45 17 28 3}
+do_test boundary3-2.55.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 281474976710656 ORDER BY t2.a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 14 15 16 18 19 20 21 22 23 24 25 29 30 31 32 33 34 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary3-2.55.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 281474976710656 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 34 33 32 31 30 29 25 24 23 22 21 20 19 18 16 15 14 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary3-2.55.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=26
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10}
+do_test boundary3-2.55.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=26
+     ORDER BY t1.rowid DESC
+  }
+} {10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.55.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=26
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.55.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 281474976710656 ORDER BY t2.a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 14 15 16 18 19 20 21 22 23 24 25 26 29 30 31 32 33 34 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary3-2.55.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 281474976710656 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 34 33 32 31 30 29 26 25 24 23 22 21 20 19 18 16 15 14 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary3-2.55.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=26
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26}
+do_test boundary3-2.55.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=26
+     ORDER BY t1.rowid DESC
+  }
+} {26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.55.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=26
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.56.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=32767 AND t2.a=t1.a
+  }
+} {23 0000000000007fff}
+do_test boundary3-2.56.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='0000000000007fff'
+  }
+} {32767 23}
+do_test boundary3-2.56.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=23
+  }
+} {32767 0000000000007fff}
+do_test boundary3-2.56.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 32767 ORDER BY t2.a
+  }
+} {3 6 7 9 10 12 13 14 15 17 18 19 20 22 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 50 51 56 57 62}
+do_test boundary3-2.56.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 32767 ORDER BY t1.a DESC
+  }
+} {62 57 56 51 50 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 22 20 19 18 17 15 14 13 12 10 9 7 6 3}
+do_test boundary3-2.56.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=23
+     ORDER BY t1.rowid
+  }
+} {50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.56.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=23
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50}
+do_test boundary3-2.56.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=23
+     ORDER BY x
+  }
+} {50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.56.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=23
+     ORDER BY t1.rowid
+  }
+} {50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.56.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=23
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50}
+do_test boundary3-2.56.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 32767 ORDER BY t2.a
+  }
+} {3 6 7 9 10 12 13 14 15 17 18 19 20 22 23 24 25 26 27 28 34 35 36 39 40 42 43 45 46 48 50 51 56 57 62}
+do_test boundary3-2.56.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 32767 ORDER BY t1.a DESC
+  }
+} {62 57 56 51 50 48 46 45 43 42 40 39 36 35 34 28 27 26 25 24 23 22 20 19 18 17 15 14 13 12 10 9 7 6 3}
+do_test boundary3-2.56.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=23
+     ORDER BY t1.rowid
+  }
+} {23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.56.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=23
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23}
+do_test boundary3-2.56.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=23
+     ORDER BY x
+  }
+} {23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.56.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=23
+     ORDER BY t1.rowid
+  }
+} {23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.56.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=23
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23}
+do_test boundary3-2.56.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 32767 ORDER BY t2.a
+  }
+} {1 2 4 5 8 11 16 21 29 30 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 61 63 64}
+do_test boundary3-2.56.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 32767 ORDER BY t1.a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 30 29 21 16 11 8 5 4 2 1}
+do_test boundary3-2.56.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=23
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16}
+do_test boundary3-2.56.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=23
+     ORDER BY t1.rowid DESC
+  }
+} {16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.56.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=23
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.56.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=23
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16}
+do_test boundary3-2.56.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=23
+     ORDER BY t1.rowid DESC
+  }
+} {16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.56.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 32767 ORDER BY t2.a
+  }
+} {1 2 4 5 8 11 16 21 23 29 30 31 32 33 37 38 41 44 47 49 52 53 54 55 58 59 60 61 63 64}
+do_test boundary3-2.56.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 32767 ORDER BY t1.a DESC
+  }
+} {64 63 61 60 59 58 55 54 53 52 49 47 44 41 38 37 33 32 31 30 29 23 21 16 11 8 5 4 2 1}
+do_test boundary3-2.56.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=23
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23}
+do_test boundary3-2.56.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=23
+     ORDER BY t1.rowid DESC
+  }
+} {23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.56.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=23
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.56.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=23
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23}
+do_test boundary3-2.56.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=23
+     ORDER BY t1.rowid DESC
+  }
+} {23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.57.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=127 AND t2.a=t1.a
+  }
+} {4 000000000000007f}
+do_test boundary3-2.57.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='000000000000007f'
+  }
+} {127 4}
+do_test boundary3-2.57.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=4
+  }
+} {127 000000000000007f}
+do_test boundary3-2.57.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 127 ORDER BY t2.a
+  }
+} {3 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 34 35 36 39 40 42 43 45 46 48 49 50 51 56 57 61 62}
+do_test boundary3-2.57.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 127 ORDER BY t1.a DESC
+  }
+} {62 61 57 56 51 50 49 48 46 45 43 42 40 39 36 35 34 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 3}
+do_test boundary3-2.57.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=4
+     ORDER BY t1.rowid
+  }
+} {49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.57.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=4
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49}
+do_test boundary3-2.57.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=4
+     ORDER BY x
+  }
+} {49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.57.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=4
+     ORDER BY t1.rowid
+  }
+} {49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.57.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=4
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49}
+do_test boundary3-2.57.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 127 ORDER BY t2.a
+  }
+} {3 4 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 34 35 36 39 40 42 43 45 46 48 49 50 51 56 57 61 62}
+do_test boundary3-2.57.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 127 ORDER BY t1.a DESC
+  }
+} {62 61 57 56 51 50 49 48 46 45 43 42 40 39 36 35 34 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 4 3}
+do_test boundary3-2.57.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=4
+     ORDER BY t1.rowid
+  }
+} {4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.57.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=4
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4}
+do_test boundary3-2.57.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=4
+     ORDER BY x
+  }
+} {4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.57.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=4
+     ORDER BY t1.rowid
+  }
+} {4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.57.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=4
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4}
+do_test boundary3-2.57.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 127 ORDER BY t2.a
+  }
+} {1 2 5 11 21 29 31 32 33 37 38 41 44 47 52 53 54 55 58 59 60 63 64}
+do_test boundary3-2.57.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 127 ORDER BY t1.a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 47 44 41 38 37 33 32 31 29 21 11 5 2 1}
+do_test boundary3-2.57.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=4
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31}
+do_test boundary3-2.57.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=4
+     ORDER BY t1.rowid DESC
+  }
+} {31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.57.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=4
+     ORDER BY x
+  }
+} {59 60 41 5 31 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.57.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=4
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31}
+do_test boundary3-2.57.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=4
+     ORDER BY t1.rowid DESC
+  }
+} {31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.57.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 127 ORDER BY t2.a
+  }
+} {1 2 4 5 11 21 29 31 32 33 37 38 41 44 47 52 53 54 55 58 59 60 63 64}
+do_test boundary3-2.57.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 127 ORDER BY t1.a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 47 44 41 38 37 33 32 31 29 21 11 5 4 2 1}
+do_test boundary3-2.57.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=4
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4}
+do_test boundary3-2.57.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=4
+     ORDER BY t1.rowid DESC
+  }
+} {4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.57.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=4
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.57.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=4
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4}
+do_test boundary3-2.57.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=4
+     ORDER BY t1.rowid DESC
+  }
+} {4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.58.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=36028797018963967 AND t2.a=t1.a
+  }
+} {27 007fffffffffffff}
+do_test boundary3-2.58.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='007fffffffffffff'
+  }
+} {36028797018963967 27}
+do_test boundary3-2.58.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=27
+  }
+} {36028797018963967 007fffffffffffff}
+do_test boundary3-2.58.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 36028797018963967 ORDER BY t2.a
+  }
+} {3 17 28 45}
+do_test boundary3-2.58.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 36028797018963967 ORDER BY t1.a DESC
+  }
+} {45 28 17 3}
+do_test boundary3-2.58.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=27
+     ORDER BY t1.rowid
+  }
+} {45 17 28 3}
+do_test boundary3-2.58.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=27
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45}
+do_test boundary3-2.58.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=27
+     ORDER BY x
+  }
+} {45 17 28 3}
+do_test boundary3-2.58.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 36028797018963967 ORDER BY t2.a
+  }
+} {3 17 27 28 45}
+do_test boundary3-2.58.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 36028797018963967 ORDER BY t1.a DESC
+  }
+} {45 28 27 17 3}
+do_test boundary3-2.58.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=27
+     ORDER BY t1.rowid
+  }
+} {27 45 17 28 3}
+do_test boundary3-2.58.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=27
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27}
+do_test boundary3-2.58.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=27
+     ORDER BY x
+  }
+} {27 45 17 28 3}
+do_test boundary3-2.58.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 36028797018963967 ORDER BY t2.a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 18 19 20 21 22 23 24 25 26 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary3-2.58.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 36028797018963967 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 26 25 24 23 22 21 20 19 18 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary3-2.58.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=27
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43}
+do_test boundary3-2.58.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=27
+     ORDER BY t1.rowid DESC
+  }
+} {43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.58.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=27
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.58.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 36028797018963967 ORDER BY t2.a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 18 19 20 21 22 23 24 25 26 27 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary3-2.58.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 36028797018963967 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 27 26 25 24 23 22 21 20 19 18 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary3-2.58.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=27
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27}
+do_test boundary3-2.58.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=27
+     ORDER BY t1.rowid DESC
+  }
+} {27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.58.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=27
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.59.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=4398046511104 AND t2.a=t1.a
+  }
+} {56 0000040000000000}
+do_test boundary3-2.59.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='0000040000000000'
+  }
+} {4398046511104 56}
+do_test boundary3-2.59.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=56
+  }
+} {4398046511104 0000040000000000}
+do_test boundary3-2.59.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 4398046511104 ORDER BY t2.a
+  }
+} {3 10 13 17 25 26 27 28 34 43 45}
+do_test boundary3-2.59.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 4398046511104 ORDER BY t1.a DESC
+  }
+} {45 43 34 28 27 26 25 17 13 10 3}
+do_test boundary3-2.59.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=56
+     ORDER BY t1.rowid
+  }
+} {25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.59.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=56
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25}
+do_test boundary3-2.59.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=56
+     ORDER BY x
+  }
+} {25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.59.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=56
+     ORDER BY t1.rowid
+  }
+} {25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.59.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=56
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25}
+do_test boundary3-2.59.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 4398046511104 ORDER BY t2.a
+  }
+} {3 10 13 17 25 26 27 28 34 43 45 56}
+do_test boundary3-2.59.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 4398046511104 ORDER BY t1.a DESC
+  }
+} {56 45 43 34 28 27 26 25 17 13 10 3}
+do_test boundary3-2.59.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=56
+     ORDER BY t1.rowid
+  }
+} {56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.59.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=56
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56}
+do_test boundary3-2.59.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=56
+     ORDER BY x
+  }
+} {56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.59.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=56
+     ORDER BY t1.rowid
+  }
+} {56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.59.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=56
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56}
+do_test boundary3-2.59.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 4398046511104 ORDER BY t2.a
+  }
+} {1 2 4 5 6 7 8 9 11 12 14 15 16 18 19 20 21 22 23 24 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 57 58 59 60 61 62 63 64}
+do_test boundary3-2.59.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 4398046511104 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 57 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 24 23 22 21 20 19 18 16 15 14 12 11 9 8 7 6 5 4 2 1}
+do_test boundary3-2.59.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=56
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7}
+do_test boundary3-2.59.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=56
+     ORDER BY t1.rowid DESC
+  }
+} {7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.59.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=56
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.59.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=56
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7}
+do_test boundary3-2.59.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=56
+     ORDER BY t1.rowid DESC
+  }
+} {7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.59.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 4398046511104 ORDER BY t2.a
+  }
+} {1 2 4 5 6 7 8 9 11 12 14 15 16 18 19 20 21 22 23 24 29 30 31 32 33 35 36 37 38 39 40 41 42 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary3-2.59.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 4398046511104 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 42 41 40 39 38 37 36 35 33 32 31 30 29 24 23 22 21 20 19 18 16 15 14 12 11 9 8 7 6 5 4 2 1}
+do_test boundary3-2.59.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=56
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56}
+do_test boundary3-2.59.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=56
+     ORDER BY t1.rowid DESC
+  }
+} {56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.59.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=56
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.59.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=56
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56}
+do_test boundary3-2.59.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=56
+     ORDER BY t1.rowid DESC
+  }
+} {56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.60.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=1 AND t2.a=t1.a
+  }
+} {60 0000000000000001}
+do_test boundary3-2.60.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='0000000000000001'
+  }
+} {1 60}
+do_test boundary3-2.60.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=60
+  }
+} {1 0000000000000001}
+do_test boundary3-2.60.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 1 ORDER BY t2.a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 39 40 41 42 43 45 46 48 49 50 51 56 57 61 62}
+do_test boundary3-2.60.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 1 ORDER BY t1.a DESC
+  }
+} {62 61 57 56 51 50 49 48 46 45 43 42 41 40 39 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary3-2.60.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=60
+     ORDER BY t1.rowid
+  }
+} {41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.60.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=60
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41}
+do_test boundary3-2.60.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=60
+     ORDER BY x
+  }
+} {41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.60.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=60
+     ORDER BY t1.rowid
+  }
+} {41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.60.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=60
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41}
+do_test boundary3-2.60.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 1 ORDER BY t2.a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 39 40 41 42 43 45 46 48 49 50 51 56 57 60 61 62}
+do_test boundary3-2.60.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 1 ORDER BY t1.a DESC
+  }
+} {62 61 60 57 56 51 50 49 48 46 45 43 42 41 40 39 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary3-2.60.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=60
+     ORDER BY t1.rowid
+  }
+} {60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.60.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=60
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60}
+do_test boundary3-2.60.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=60
+     ORDER BY x
+  }
+} {60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.60.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=60
+     ORDER BY t1.rowid
+  }
+} {60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.60.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=60
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60}
+do_test boundary3-2.60.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 1 ORDER BY t2.a
+  }
+} {1 2 11 21 29 32 33 37 38 44 47 52 53 54 55 58 59 63 64}
+do_test boundary3-2.60.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 1 ORDER BY t1.a DESC
+  }
+} {64 63 59 58 55 54 53 52 47 44 38 37 33 32 29 21 11 2 1}
+do_test boundary3-2.60.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=60
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59}
+do_test boundary3-2.60.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=60
+     ORDER BY t1.rowid DESC
+  }
+} {59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.60.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=60
+     ORDER BY x
+  }
+} {59 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.60.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=60
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59}
+do_test boundary3-2.60.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=60
+     ORDER BY t1.rowid DESC
+  }
+} {59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.60.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 1 ORDER BY t2.a
+  }
+} {1 2 11 21 29 32 33 37 38 44 47 52 53 54 55 58 59 60 63 64}
+do_test boundary3-2.60.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 1 ORDER BY t1.a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 47 44 38 37 33 32 29 21 11 2 1}
+do_test boundary3-2.60.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=60
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60}
+do_test boundary3-2.60.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=60
+     ORDER BY t1.rowid DESC
+  }
+} {60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.60.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=60
+     ORDER BY x
+  }
+} {59 60 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.60.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=60
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60}
+do_test boundary3-2.60.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=60
+     ORDER BY t1.rowid DESC
+  }
+} {60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.61.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=36028797018963968 AND t2.a=t1.a
+  }
+} {45 0080000000000000}
+do_test boundary3-2.61.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='0080000000000000'
+  }
+} {36028797018963968 45}
+do_test boundary3-2.61.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=45
+  }
+} {36028797018963968 0080000000000000}
+do_test boundary3-2.61.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 36028797018963968 ORDER BY t2.a
+  }
+} {3 17 28}
+do_test boundary3-2.61.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 36028797018963968 ORDER BY t1.a DESC
+  }
+} {28 17 3}
+do_test boundary3-2.61.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=45
+     ORDER BY t1.rowid
+  }
+} {17 28 3}
+do_test boundary3-2.61.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=45
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17}
+do_test boundary3-2.61.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=45
+     ORDER BY x
+  }
+} {17 28 3}
+do_test boundary3-2.61.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 36028797018963968 ORDER BY t2.a
+  }
+} {3 17 28 45}
+do_test boundary3-2.61.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 36028797018963968 ORDER BY t1.a DESC
+  }
+} {45 28 17 3}
+do_test boundary3-2.61.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=45
+     ORDER BY t1.rowid
+  }
+} {45 17 28 3}
+do_test boundary3-2.61.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=45
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45}
+do_test boundary3-2.61.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=45
+     ORDER BY x
+  }
+} {45 17 28 3}
+do_test boundary3-2.61.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 36028797018963968 ORDER BY t2.a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 18 19 20 21 22 23 24 25 26 27 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary3-2.61.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 36028797018963968 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 27 26 25 24 23 22 21 20 19 18 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary3-2.61.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=45
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27}
+do_test boundary3-2.61.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=45
+     ORDER BY t1.rowid DESC
+  }
+} {27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.61.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=45
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.61.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 36028797018963968 ORDER BY t2.a
+  }
+} {1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 18 19 20 21 22 23 24 25 26 27 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary3-2.61.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 36028797018963968 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 27 26 25 24 23 22 21 20 19 18 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1}
+do_test boundary3-2.61.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=45
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45}
+do_test boundary3-2.61.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=45
+     ORDER BY t1.rowid DESC
+  }
+} {45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.61.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=45
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.62.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=-2147483649 AND t2.a=t1.a
+  }
+} {47 ffffffff7fffffff}
+do_test boundary3-2.62.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='ffffffff7fffffff'
+  }
+} {-2147483649 47}
+do_test boundary3-2.62.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=47
+  }
+} {-2147483649 ffffffff7fffffff}
+do_test boundary3-2.62.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > -2147483649 ORDER BY t2.a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary3-2.62.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > -2147483649 ORDER BY t1.a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary3-2.62.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=47
+     ORDER BY t1.rowid
+  }
+} {11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.62.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=47
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11}
+do_test boundary3-2.62.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=47
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.62.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=47
+     ORDER BY t1.rowid
+  }
+} {11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.62.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=47
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11}
+do_test boundary3-2.62.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= -2147483649 ORDER BY t2.a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 47 48 49 50 51 52 53 54 56 57 59 60 61 62}
+do_test boundary3-2.62.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= -2147483649 ORDER BY t1.a DESC
+  }
+} {62 61 60 59 57 56 54 53 52 51 50 49 48 47 46 45 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary3-2.62.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=47
+     ORDER BY t1.rowid
+  }
+} {47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.62.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=47
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47}
+do_test boundary3-2.62.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=47
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.62.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=47
+     ORDER BY t1.rowid
+  }
+} {47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.62.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=47
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47}
+do_test boundary3-2.62.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < -2147483649 ORDER BY t2.a
+  }
+} {2 21 44 55 58 63 64}
+do_test boundary3-2.62.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < -2147483649 ORDER BY t1.a DESC
+  }
+} {64 63 58 55 44 21 2}
+do_test boundary3-2.62.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=47
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63}
+do_test boundary3-2.62.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=47
+     ORDER BY t1.rowid DESC
+  }
+} {63 58 44 21 64 2 55}
+do_test boundary3-2.62.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=47
+     ORDER BY x
+  }
+} {55 2 64 21 44 58 63}
+do_test boundary3-2.62.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=47
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63}
+do_test boundary3-2.62.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=47
+     ORDER BY t1.rowid DESC
+  }
+} {63 58 44 21 64 2 55}
+do_test boundary3-2.62.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= -2147483649 ORDER BY t2.a
+  }
+} {2 21 44 47 55 58 63 64}
+do_test boundary3-2.62.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= -2147483649 ORDER BY t1.a DESC
+  }
+} {64 63 58 55 47 44 21 2}
+do_test boundary3-2.62.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=47
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47}
+do_test boundary3-2.62.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=47
+     ORDER BY t1.rowid DESC
+  }
+} {47 63 58 44 21 64 2 55}
+do_test boundary3-2.62.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=47
+     ORDER BY x
+  }
+} {55 2 64 21 44 58 63 47}
+do_test boundary3-2.62.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=47
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47}
+do_test boundary3-2.62.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=47
+     ORDER BY t1.rowid DESC
+  }
+} {47 63 58 44 21 64 2 55}
+do_test boundary3-2.63.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=-36028797018963969 AND t2.a=t1.a
+  }
+} {2 ff7fffffffffffff}
+do_test boundary3-2.63.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='ff7fffffffffffff'
+  }
+} {-36028797018963969 2}
+do_test boundary3-2.63.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=2
+  }
+} {-36028797018963969 ff7fffffffffffff}
+do_test boundary3-2.63.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > -36028797018963969 ORDER BY t2.a
+  }
+} {1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 56 57 58 59 60 61 62 63 64}
+do_test boundary3-2.63.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > -36028797018963969 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 1}
+do_test boundary3-2.63.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=2
+     ORDER BY t1.rowid
+  }
+} {64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.63.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=2
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64}
+do_test boundary3-2.63.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=2
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.63.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= -36028797018963969 ORDER BY t2.a
+  }
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 56 57 58 59 60 61 62 63 64}
+do_test boundary3-2.63.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= -36028797018963969 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1}
+do_test boundary3-2.63.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=2
+     ORDER BY t1.rowid
+  }
+} {2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.63.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=2
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2}
+do_test boundary3-2.63.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=2
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.63.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < -36028797018963969 ORDER BY t2.a
+  }
+} {55}
+do_test boundary3-2.63.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < -36028797018963969 ORDER BY t1.a DESC
+  }
+} {55}
+do_test boundary3-2.63.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=2
+     ORDER BY t1.rowid
+  }
+} {55}
+do_test boundary3-2.63.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=2
+     ORDER BY t1.rowid DESC
+  }
+} {55}
+do_test boundary3-2.63.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=2
+     ORDER BY x
+  }
+} {55}
+do_test boundary3-2.63.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= -36028797018963969 ORDER BY t2.a
+  }
+} {2 55}
+do_test boundary3-2.63.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= -36028797018963969 ORDER BY t1.a DESC
+  }
+} {55 2}
+do_test boundary3-2.63.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=2
+     ORDER BY t1.rowid
+  }
+} {55 2}
+do_test boundary3-2.63.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=2
+     ORDER BY t1.rowid DESC
+  }
+} {2 55}
+do_test boundary3-2.63.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=2
+     ORDER BY x
+  }
+} {55 2}
+do_test boundary3-2.64.1 {
+  db eval {
+    SELECT t1.* FROM t1, t2 WHERE t1.rowid=3 AND t2.a=t1.a
+  }
+} {5 0000000000000003}
+do_test boundary3-2.64.2 {
+  db eval {
+    SELECT t2.* FROM t1 JOIN t2 USING(a) WHERE x='0000000000000003'
+  }
+} {3 5}
+do_test boundary3-2.64.3 {
+  db eval {
+    SELECT t1.rowid, x FROM t1 JOIN t2 ON t2.r=t1.rowid WHERE t2.a=5
+  }
+} {3 0000000000000003}
+do_test boundary3-2.64.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 3 ORDER BY t2.a
+  }
+} {3 4 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 39 40 42 43 45 46 48 49 50 51 56 57 61 62}
+do_test boundary3-2.64.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 3 ORDER BY t1.a DESC
+  }
+} {62 61 57 56 51 50 49 48 46 45 43 42 40 39 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 4 3}
+do_test boundary3-2.64.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=5
+     ORDER BY t1.rowid
+  }
+} {31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.64.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=5
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31}
+do_test boundary3-2.64.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=5
+     ORDER BY x
+  }
+} {31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.64.gt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=5
+     ORDER BY t1.rowid
+  }
+} {31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.64.gt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > CAST(t2.r AS real)
+     WHERE t2.a=5
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31}
+do_test boundary3-2.64.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 3 ORDER BY t2.a
+  }
+} {3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 30 31 34 35 36 39 40 42 43 45 46 48 49 50 51 56 57 61 62}
+do_test boundary3-2.64.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 3 ORDER BY t1.a DESC
+  }
+} {62 61 57 56 51 50 49 48 46 45 43 42 40 39 36 35 34 31 30 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 10 9 8 7 6 5 4 3}
+do_test boundary3-2.64.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=5
+     ORDER BY t1.rowid
+  }
+} {5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.64.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=5
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5}
+do_test boundary3-2.64.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=5
+     ORDER BY x
+  }
+} {5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.64.ge.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=5
+     ORDER BY t1.rowid
+  }
+} {5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.64.ge.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= CAST(t2.r AS real)
+     WHERE t2.a=5
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5}
+do_test boundary3-2.64.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 3 ORDER BY t2.a
+  }
+} {1 2 11 21 29 32 33 37 38 41 44 47 52 53 54 55 58 59 60 63 64}
+do_test boundary3-2.64.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 3 ORDER BY t1.a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 47 44 41 38 37 33 32 29 21 11 2 1}
+do_test boundary3-2.64.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=5
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41}
+do_test boundary3-2.64.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=5
+     ORDER BY t1.rowid DESC
+  }
+} {41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.64.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=5
+     ORDER BY x
+  }
+} {59 60 41 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.64.lt.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=5
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41}
+do_test boundary3-2.64.lt.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < CAST(t2.r AS real)
+     WHERE t2.a=5
+     ORDER BY t1.rowid DESC
+  }
+} {41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.64.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 3 ORDER BY t2.a
+  }
+} {1 2 5 11 21 29 32 33 37 38 41 44 47 52 53 54 55 58 59 60 63 64}
+do_test boundary3-2.64.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 3 ORDER BY t1.a DESC
+  }
+} {64 63 60 59 58 55 54 53 52 47 44 41 38 37 33 32 29 21 11 5 2 1}
+do_test boundary3-2.64.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=5
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5}
+do_test boundary3-2.64.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=5
+     ORDER BY t1.rowid DESC
+  }
+} {5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.64.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=5
+     ORDER BY x
+  }
+} {59 60 41 5 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.64.le.10 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=5
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5}
+do_test boundary3-2.64.le.11 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= CAST(t2.r AS real)
+     WHERE t2.a=5
+     ORDER BY t1.rowid DESC
+  }
+} {5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.65.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > 9.22337303685477580800e+18 ORDER BY t2.a
+  }
+} {}
+do_test boundary3-2.65.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > 9.22337303685477580800e+18 ORDER BY t1.a DESC
+  }
+} {}
+do_test boundary3-2.65.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=65
+     ORDER BY t1.rowid
+  }
+} {}
+do_test boundary3-2.65.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=65
+     ORDER BY t1.rowid DESC
+  }
+} {}
+do_test boundary3-2.65.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=65
+     ORDER BY x
+  }
+} {}
+do_test boundary3-2.65.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= 9.22337303685477580800e+18 ORDER BY t2.a
+  }
+} {}
+do_test boundary3-2.65.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= 9.22337303685477580800e+18 ORDER BY t1.a DESC
+  }
+} {}
+do_test boundary3-2.65.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=65
+     ORDER BY t1.rowid
+  }
+} {}
+do_test boundary3-2.65.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=65
+     ORDER BY t1.rowid DESC
+  }
+} {}
+do_test boundary3-2.65.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=65
+     ORDER BY x
+  }
+} {}
+do_test boundary3-2.65.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < 9.22337303685477580800e+18 ORDER BY t2.a
+  }
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary3-2.65.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < 9.22337303685477580800e+18 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1}
+do_test boundary3-2.65.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=65
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.65.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=65
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.65.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=65
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.65.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= 9.22337303685477580800e+18 ORDER BY t2.a
+  }
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary3-2.65.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= 9.22337303685477580800e+18 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1}
+do_test boundary3-2.65.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=65
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.65.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=65
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.65.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=65
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.66.gt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid > -9.22337303685477580800e+18 ORDER BY t2.a
+  }
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary3-2.66.gt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid > -9.22337303685477580800e+18 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1}
+do_test boundary3-2.66.gt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=66
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.66.gt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=66
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.66.gt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid > t2.r
+     WHERE t2.a=66
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.66.ge.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid >= -9.22337303685477580800e+18 ORDER BY t2.a
+  }
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64}
+do_test boundary3-2.66.ge.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid >= -9.22337303685477580800e+18 ORDER BY t1.a DESC
+  }
+} {64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1}
+do_test boundary3-2.66.ge.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=66
+     ORDER BY t1.rowid
+  }
+} {55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38 59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3}
+do_test boundary3-2.66.ge.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=66
+     ORDER BY t1.rowid DESC
+  }
+} {3 28 17 45 27 43 13 26 10 34 25 56 7 19 57 35 46 22 39 36 14 51 20 40 12 6 9 24 18 42 15 62 48 50 23 16 8 61 30 49 4 31 5 41 60 59 38 33 52 53 54 32 29 37 1 11 47 63 58 44 21 64 2 55}
+do_test boundary3-2.66.ge.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid >= t2.r
+     WHERE t2.a=66
+     ORDER BY x
+  }
+} {59 60 41 5 31 4 49 30 61 8 16 23 50 48 62 15 42 18 24 9 6 12 40 20 51 14 36 39 22 46 35 57 19 7 56 25 34 10 26 13 43 27 45 17 28 3 55 2 64 21 44 58 63 47 11 1 37 29 32 54 53 52 33 38}
+do_test boundary3-2.66.lt.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid < -9.22337303685477580800e+18 ORDER BY t2.a
+  }
+} {}
+do_test boundary3-2.66.lt.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid < -9.22337303685477580800e+18 ORDER BY t1.a DESC
+  }
+} {}
+do_test boundary3-2.66.lt.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=66
+     ORDER BY t1.rowid
+  }
+} {}
+do_test boundary3-2.66.lt.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=66
+     ORDER BY t1.rowid DESC
+  }
+} {}
+do_test boundary3-2.66.lt.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid < t2.r
+     WHERE t2.a=66
+     ORDER BY x
+  }
+} {}
+do_test boundary3-2.66.le.1 {
+  db eval {
+    SELECT t2.a FROM t1 JOIN t2 USING(a)
+     WHERE t1.rowid <= -9.22337303685477580800e+18 ORDER BY t2.a
+  }
+} {}
+do_test boundary3-2.66.le.2 {
+  db eval {
+    SELECT t2.a FROM t2 NATURAL JOIN t1
+     WHERE t1.rowid <= -9.22337303685477580800e+18 ORDER BY t1.a DESC
+  }
+} {}
+do_test boundary3-2.66.le.3 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=66
+     ORDER BY t1.rowid
+  }
+} {}
+do_test boundary3-2.66.le.4 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=66
+     ORDER BY t1.rowid DESC
+  }
+} {}
+do_test boundary3-2.66.le.5 {
+  db eval {
+    SELECT t1.a FROM t1 JOIN t2 ON t1.rowid <= t2.r
+     WHERE t2.a=66
+     ORDER BY x
+  }
+} {}
+finish_test
diff --git a/test/boundary4.tcl b/test/boundary4.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..20f5c9680fb8a7d781187a0ac874a86125c83644
--- /dev/null
+++ b/test/boundary4.tcl
@@ -0,0 +1,340 @@
+puts {# 2008 December 11
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file is automatically generated from a separate TCL script.
+# This file seeks to exercise integer boundary values.
+#
+# $Id: boundary4.tcl,v 1.3 2009/01/02 15:45:48 shane Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Many of the boundary tests depend on a working 64-bit implementation.
+if {![working_64bit_int]} { finish_test; return }
+ifcapable !altertable     { finish_test; return }
+}
+
+expr srand(0)
+
+# Generate interesting boundary numbers
+#
+foreach x {
+  0x7f
+  0x7fff
+  0x7fffff
+  0x7fffffff
+  0x7fffffffff
+  0x7fffffffffff
+  0x7fffffffffffff
+  0x7fffffffffffffff
+} {
+  set x [expr {wide($x)}]
+  set boundarynum($x) 1
+  set boundarynum([expr {$x+1}]) 1
+  set boundarynum([expr {-($x+1)}]) 1
+  set boundarynum([expr {-($x+2)}]) 1
+  set boundarynum([expr {$x+$x+1}]) 1
+  set boundarynum([expr {$x+$x+2}]) 1
+}
+set x [expr {wide(127)}]
+for {set i 127} {$i<=9} {incr i} {
+  set boundarynum($x) 1
+  set boundarynum([expr {$x+1}]) 1
+  set x [expr {wide($x*128 + 127)}]
+}
+
+# Scramble the $inlist into a random order.
+#
+proc scramble {inlist} {
+  set y {}
+  foreach x $inlist {
+    lappend y [list [expr {rand()}] $x]
+  }
+  set y [lsort $y]
+  set outlist {}
+  foreach x $y {
+    lappend outlist [lindex $x 1]
+  }
+  return $outlist
+}
+
+# A simple selection sort.  Not trying to be efficient.
+#
+proc sort {inlist} {
+  set outlist {}
+  set mn [lindex $inlist 0]
+  foreach x $inlist {
+    if {$x<$mn} {set mn $x}
+  }
+  set outlist $mn
+  set mx $mn
+  while {1} {
+    set valid 0
+    foreach x $inlist {
+      if {$x>$mx && (!$valid || $mn>$x)} {
+        set mn $x
+        set valid 1
+      }
+    }
+    if {!$valid} break
+    lappend outlist $mn
+    set mx $mn
+  }
+  return $outlist
+}
+
+# Reverse the order of a list
+#
+proc reverse {inlist} {
+  set i [llength $inlist]
+  set outlist {}
+  for {incr i -1} {$i>=0} {incr i -1} {
+    lappend outlist [lindex $inlist $i]
+  }
+  return $outlist
+}
+
+set nums1 [scramble [array names boundarynum]]
+set nums2 [scramble [array names boundarynum]]
+
+set tname boundary4
+puts "do_test $tname-1.1 \173"
+puts "  db eval \173"
+puts "    CREATE TABLE t1(a,x);"
+set a 0
+set all_rowid {}
+set all_a {}
+set all_x {}
+foreach r $nums1 {
+  incr a
+  set t1ra($r) $a
+  set t1ar($a) $r
+  set x [format %08x%08x [expr {wide($r)>>32}] $r]
+  set t1rx($r) $x
+  set t1xr($x) $r
+  puts "    INSERT INTO t1(oid,a,x) VALUES($r,$a,'$x');"
+  lappend all_rowid $r
+  lappend all_a $a
+  lappend all_x $x
+}
+puts "    CREATE INDEX t1i1 ON t1(a);"
+puts "    CREATE INDEX t1i2 ON t1(x);"
+puts "  \175"
+puts "\175 {}"
+
+puts "do_test $tname-1.2 \173"
+puts "  db eval \173"
+puts "    SELECT count(*) FROM t1"
+puts "  \175"
+puts "\175 {[llength $nums1]}"
+
+proc maketest {tnum sql answer} {
+  puts "do_test $::tname-$tnum \173"
+  puts "  db eval \173"
+  puts "    $sql"
+  puts "  \175"
+  puts "\175 {$answer}"
+}
+
+set ans {}
+foreach r [sort $all_rowid] {
+  lappend ans $r $t1ra($r) $t1rx($r)
+}
+maketest 1.3 {SELECT rowid, a, x FROM t1 ORDER BY +rowid} $ans
+maketest 1.4 {SELECT rowid, a, x FROM t1 ORDER BY rowid} $ans
+
+set ans {}
+foreach r [reverse [sort $all_rowid]] {
+  lappend ans $r $t1ra($r) $t1rx($r)
+}
+maketest 1.5 {SELECT rowid, a, x FROM t1 ORDER BY +rowid DESC} $ans
+maketest 1.6 {SELECT rowid, a, x FROM t1 ORDER BY rowid DESC} $ans
+
+set ans {}
+foreach a [sort $all_a] {
+  set r $t1ar($a)
+  lappend ans $r $a $t1rx($r)
+}
+maketest 1.7 {SELECT rowid, a, x FROM t1 ORDER BY +a} $ans
+maketest 1.8 {SELECT rowid, a, x FROM t1 ORDER BY a} $ans
+
+set ans {}
+foreach a [reverse [sort $all_a]] {
+  set r $t1ar($a)
+  lappend ans $r $a $t1rx($r)
+}
+maketest 1.9 {SELECT rowid, a, x FROM t1 ORDER BY +a DESC} $ans
+maketest 1.10 {SELECT rowid, a, x FROM t1 ORDER BY a DESC} $ans
+
+set ans {}
+foreach x [sort $all_x] {
+  set r $t1xr($x)
+  lappend ans $r $t1ra($r) $x
+}
+maketest 1.11 {SELECT rowid, a, x FROM t1 ORDER BY +x} $ans
+maketest 1.12 {SELECT rowid, a, x FROM t1 ORDER BY x} $ans
+
+set ans {}
+foreach x [reverse [sort $all_x]] {
+  set r $t1xr($x)
+  lappend ans $r $t1ra($r) $x
+}
+maketest 1.13 {SELECT rowid, a, x FROM t1 ORDER BY +x DESC} $ans
+maketest 1.14 {SELECT rowid, a, x FROM t1 ORDER BY x DESC} $ans
+
+maketest 2.1 {UPDATE t1 SET rowid=a, a=rowid} {}
+
+set ans {}
+foreach r [sort $all_rowid] {
+  lappend ans $r $t1ra($r) $t1rx($r)
+}
+maketest 2.3 {SELECT a, rowid, x FROM t1 ORDER BY +a} $ans
+maketest 2.4 {SELECT a, rowid, x FROM t1 ORDER BY a} $ans
+
+set ans {}
+foreach r [reverse [sort $all_rowid]] {
+  lappend ans $r $t1ra($r) $t1rx($r)
+}
+maketest 2.5 {SELECT a, rowid, x FROM t1 ORDER BY +a DESC} $ans
+maketest 2.6 {SELECT a, rowid, x FROM t1 ORDER BY a DESC} $ans
+
+set ans {}
+foreach a [sort $all_a] {
+  set r $t1ar($a)
+  lappend ans $r $a $t1rx($r)
+}
+maketest 2.7 {SELECT a, rowid, x FROM t1 ORDER BY +rowid} $ans
+maketest 2.8 {SELECT a, rowid, x FROM t1 ORDER BY rowid} $ans
+
+set ans {}
+foreach a [reverse [sort $all_a]] {
+  set r $t1ar($a)
+  lappend ans $r $a $t1rx($r)
+}
+maketest 2.9 {SELECT a, rowid, x FROM t1 ORDER BY +rowid DESC} $ans
+maketest 2.10 {SELECT a, rowid, x FROM t1 ORDER BY rowid DESC} $ans
+
+set ans {}
+foreach x [sort $all_x] {
+  set r $t1xr($x)
+  lappend ans $r $t1ra($r) $x
+}
+maketest 2.11 {SELECT a, rowid, x FROM t1 ORDER BY +x} $ans
+maketest 2.12 {SELECT a, rowid, x FROM t1 ORDER BY x} $ans
+
+set ans {}
+foreach x [reverse [sort $all_x]] {
+  set r $t1xr($x)
+  lappend ans $r $t1ra($r) $x
+}
+maketest 2.13 {SELECT a, rowid, x FROM t1 ORDER BY +x DESC} $ans
+maketest 2.14 {SELECT a, rowid, x FROM t1 ORDER BY x DESC} $ans
+
+maketest 3.1 {UPDATE t1 SET rowid=a, a=rowid} {}
+maketest 3.2 {ALTER TABLE t1 ADD COLUMN z; UPDATE t1 SET z=zeroblob(600)} {}
+
+set ans {}
+foreach r [sort $all_rowid] {
+  lappend ans $r $t1ra($r) $t1rx($r)
+}
+maketest 3.3 {SELECT rowid, a, x FROM t1 ORDER BY +rowid} $ans
+maketest 3.4 {SELECT rowid, a, x FROM t1 ORDER BY rowid} $ans
+
+set ans {}
+foreach r [reverse [sort $all_rowid]] {
+  lappend ans $r $t1ra($r) $t1rx($r)
+}
+maketest 3.5 {SELECT rowid, a, x FROM t1 ORDER BY +rowid DESC} $ans
+maketest 3.6 {SELECT rowid, a, x FROM t1 ORDER BY rowid DESC} $ans
+
+set ans {}
+foreach a [sort $all_a] {
+  set r $t1ar($a)
+  lappend ans $r $a $t1rx($r)
+}
+maketest 3.7 {SELECT rowid, a, x FROM t1 ORDER BY +a} $ans
+maketest 3.8 {SELECT rowid, a, x FROM t1 ORDER BY a} $ans
+
+set ans {}
+foreach a [reverse [sort $all_a]] {
+  set r $t1ar($a)
+  lappend ans $r $a $t1rx($r)
+}
+maketest 3.9 {SELECT rowid, a, x FROM t1 ORDER BY +a DESC} $ans
+maketest 3.10 {SELECT rowid, a, x FROM t1 ORDER BY a DESC} $ans
+
+set ans {}
+foreach x [sort $all_x] {
+  set r $t1xr($x)
+  lappend ans $r $t1ra($r) $x
+}
+maketest 3.11 {SELECT rowid, a, x FROM t1 ORDER BY +x} $ans
+maketest 3.12 {SELECT rowid, a, x FROM t1 ORDER BY x} $ans
+
+set ans {}
+foreach x [reverse [sort $all_x]] {
+  set r $t1xr($x)
+  lappend ans $r $t1ra($r) $x
+}
+maketest 3.13 {SELECT rowid, a, x FROM t1 ORDER BY +x DESC} $ans
+maketest 3.14 {SELECT rowid, a, x FROM t1 ORDER BY x DESC} $ans
+
+
+maketest 4.1 {UPDATE t1 SET rowid=a, a=rowid, x=z, z=x} {}
+
+set ans {}
+foreach r [sort $all_rowid] {
+  lappend ans $r $t1ra($r) $t1rx($r)
+}
+maketest 4.3 {SELECT a, rowid, z FROM t1 ORDER BY +a} $ans
+maketest 4.4 {SELECT a, rowid, z FROM t1 ORDER BY a} $ans
+
+set ans {}
+foreach r [reverse [sort $all_rowid]] {
+  lappend ans $r $t1ra($r) $t1rx($r)
+}
+maketest 4.5 {SELECT a, rowid, z FROM t1 ORDER BY +a DESC} $ans
+maketest 4.6 {SELECT a, rowid, z FROM t1 ORDER BY a DESC} $ans
+
+set ans {}
+foreach a [sort $all_a] {
+  set r $t1ar($a)
+  lappend ans $r $a $t1rx($r)
+}
+maketest 4.7 {SELECT a, rowid, z FROM t1 ORDER BY +rowid} $ans
+maketest 4.8 {SELECT a, rowid, z FROM t1 ORDER BY rowid} $ans
+
+set ans {}
+foreach a [reverse [sort $all_a]] {
+  set r $t1ar($a)
+  lappend ans $r $a $t1rx($r)
+}
+maketest 4.9 {SELECT a, rowid, z FROM t1 ORDER BY +rowid DESC} $ans
+maketest 4.10 {SELECT a, rowid, z FROM t1 ORDER BY rowid DESC} $ans
+
+set ans {}
+foreach x [sort $all_x] {
+  set r $t1xr($x)
+  lappend ans $r $t1ra($r) $x
+}
+maketest 4.11 {SELECT a, rowid, z FROM t1 ORDER BY +z} $ans
+maketest 4.12 {SELECT a, rowid, z FROM t1 ORDER BY z} $ans
+
+set ans {}
+foreach x [reverse [sort $all_x]] {
+  set r $t1xr($x)
+  lappend ans $r $t1ra($r) $x
+}
+maketest 4.13 {SELECT a, rowid, z FROM t1 ORDER BY +z DESC} $ans
+maketest 4.14 {SELECT a, rowid, z FROM t1 ORDER BY z DESC} $ans
+
+puts {finish_test}
diff --git a/test/boundary4.test b/test/boundary4.test
new file mode 100644
index 0000000000000000000000000000000000000000..b77ac3acf0bc91870acefdd1eb46fe327394f76d
--- /dev/null
+++ b/test/boundary4.test
@@ -0,0 +1,343 @@
+# 2008 December 11
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file is automatically generated from a separate TCL script.
+# This file seeks to exercise integer boundary values.
+#
+# $Id: boundary4.test,v 1.2 2009/01/02 15:45:48 shane Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Many of the boundary tests depend on a working 64-bit implementation.
+if {![working_64bit_int]} { finish_test; return }
+ifcapable !altertable     { finish_test; return }
+
+do_test boundary4-1.1 {
+  db eval {
+    CREATE TABLE t1(a,x);
+    INSERT INTO t1(oid,a,x) VALUES(549755813887,1,'0000007fffffffff');
+    INSERT INTO t1(oid,a,x) VALUES(-8388608,2,'ffffffffff800000');
+    INSERT INTO t1(oid,a,x) VALUES(0,3,'0000000000000000');
+    INSERT INTO t1(oid,a,x) VALUES(-129,4,'ffffffffffffff7f');
+    INSERT INTO t1(oid,a,x) VALUES(8388608,5,'0000000000800000');
+    INSERT INTO t1(oid,a,x) VALUES(65535,6,'000000000000ffff');
+    INSERT INTO t1(oid,a,x) VALUES(8388607,7,'00000000007fffff');
+    INSERT INTO t1(oid,a,x) VALUES(1099511627776,8,'0000010000000000');
+    INSERT INTO t1(oid,a,x) VALUES(16777215,9,'0000000000ffffff');
+    INSERT INTO t1(oid,a,x) VALUES(32767,10,'0000000000007fff');
+    INSERT INTO t1(oid,a,x) VALUES(4294967296,11,'0000000100000000');
+    INSERT INTO t1(oid,a,x) VALUES(-549755813888,12,'ffffff8000000000');
+    INSERT INTO t1(oid,a,x) VALUES(-140737488355328,13,'ffff800000000000');
+    INSERT INTO t1(oid,a,x) VALUES(256,14,'0000000000000100');
+    INSERT INTO t1(oid,a,x) VALUES(16777216,15,'0000000001000000');
+    INSERT INTO t1(oid,a,x) VALUES(72057594037927936,16,'0100000000000000');
+    INSERT INTO t1(oid,a,x) VALUES(-1,17,'ffffffffffffffff');
+    INSERT INTO t1(oid,a,x) VALUES(9223372036854775807,18,'7fffffffffffffff');
+    INSERT INTO t1(oid,a,x) VALUES(281474976710655,19,'0000ffffffffffff');
+    INSERT INTO t1(oid,a,x) VALUES(1099511627775,20,'000000ffffffffff');
+    INSERT INTO t1(oid,a,x) VALUES(-8388609,21,'ffffffffff7fffff');
+    INSERT INTO t1(oid,a,x) VALUES(32768,22,'0000000000008000');
+    INSERT INTO t1(oid,a,x) VALUES(36028797018963968,23,'0080000000000000');
+    INSERT INTO t1(oid,a,x) VALUES(-32769,24,'ffffffffffff7fff');
+    INSERT INTO t1(oid,a,x) VALUES(127,25,'000000000000007f');
+    INSERT INTO t1(oid,a,x) VALUES(-9223372036854775808,26,'8000000000000000');
+    INSERT INTO t1(oid,a,x) VALUES(72057594037927935,27,'00ffffffffffffff');
+    INSERT INTO t1(oid,a,x) VALUES(-549755813889,28,'ffffff7fffffffff');
+    INSERT INTO t1(oid,a,x) VALUES(255,29,'00000000000000ff');
+    INSERT INTO t1(oid,a,x) VALUES(-36028797018963969,30,'ff7fffffffffffff');
+    INSERT INTO t1(oid,a,x) VALUES(-2147483648,31,'ffffffff80000000');
+    INSERT INTO t1(oid,a,x) VALUES(281474976710656,32,'0001000000000000');
+    INSERT INTO t1(oid,a,x) VALUES(65536,33,'0000000000010000');
+    INSERT INTO t1(oid,a,x) VALUES(140737488355328,34,'0000800000000000');
+    INSERT INTO t1(oid,a,x) VALUES(549755813888,35,'0000008000000000');
+    INSERT INTO t1(oid,a,x) VALUES(2147483648,36,'0000000080000000');
+    INSERT INTO t1(oid,a,x) VALUES(4294967295,37,'00000000ffffffff');
+    INSERT INTO t1(oid,a,x) VALUES(140737488355327,38,'00007fffffffffff');
+    INSERT INTO t1(oid,a,x) VALUES(-2147483649,39,'ffffffff7fffffff');
+    INSERT INTO t1(oid,a,x) VALUES(36028797018963967,40,'007fffffffffffff');
+    INSERT INTO t1(oid,a,x) VALUES(128,41,'0000000000000080');
+    INSERT INTO t1(oid,a,x) VALUES(-32768,42,'ffffffffffff8000');
+    INSERT INTO t1(oid,a,x) VALUES(-36028797018963968,43,'ff80000000000000');
+    INSERT INTO t1(oid,a,x) VALUES(-140737488355329,44,'ffff7fffffffffff');
+    INSERT INTO t1(oid,a,x) VALUES(-128,45,'ffffffffffffff80');
+    INSERT INTO t1(oid,a,x) VALUES(2147483647,46,'000000007fffffff');
+    CREATE INDEX t1i1 ON t1(a);
+    CREATE INDEX t1i2 ON t1(x);
+  }
+} {}
+do_test boundary4-1.2 {
+  db eval {
+    SELECT count(*) FROM t1
+  }
+} {46}
+do_test boundary4-1.3 {
+  db eval {
+    SELECT rowid, a, x FROM t1 ORDER BY +rowid
+  }
+} {-9223372036854775808 26 8000000000000000 -36028797018963969 30 ff7fffffffffffff -36028797018963968 43 ff80000000000000 -140737488355329 44 ffff7fffffffffff -140737488355328 13 ffff800000000000 -549755813889 28 ffffff7fffffffff -549755813888 12 ffffff8000000000 -2147483649 39 ffffffff7fffffff -2147483648 31 ffffffff80000000 -8388609 21 ffffffffff7fffff -8388608 2 ffffffffff800000 -32769 24 ffffffffffff7fff -32768 42 ffffffffffff8000 -129 4 ffffffffffffff7f -128 45 ffffffffffffff80 -1 17 ffffffffffffffff 0 3 0000000000000000 127 25 000000000000007f 128 41 0000000000000080 255 29 00000000000000ff 256 14 0000000000000100 32767 10 0000000000007fff 32768 22 0000000000008000 65535 6 000000000000ffff 65536 33 0000000000010000 8388607 7 00000000007fffff 8388608 5 0000000000800000 16777215 9 0000000000ffffff 16777216 15 0000000001000000 2147483647 46 000000007fffffff 2147483648 36 0000000080000000 4294967295 37 00000000ffffffff 4294967296 11 0000000100000000 549755813887 1 0000007fffffffff 549755813888 35 0000008000000000 1099511627775 20 000000ffffffffff 1099511627776 8 0000010000000000 140737488355327 38 00007fffffffffff 140737488355328 34 0000800000000000 281474976710655 19 0000ffffffffffff 281474976710656 32 0001000000000000 36028797018963967 40 007fffffffffffff 36028797018963968 23 0080000000000000 72057594037927935 27 00ffffffffffffff 72057594037927936 16 0100000000000000 9223372036854775807 18 7fffffffffffffff}
+do_test boundary4-1.4 {
+  db eval {
+    SELECT rowid, a, x FROM t1 ORDER BY rowid
+  }
+} {-9223372036854775808 26 8000000000000000 -36028797018963969 30 ff7fffffffffffff -36028797018963968 43 ff80000000000000 -140737488355329 44 ffff7fffffffffff -140737488355328 13 ffff800000000000 -549755813889 28 ffffff7fffffffff -549755813888 12 ffffff8000000000 -2147483649 39 ffffffff7fffffff -2147483648 31 ffffffff80000000 -8388609 21 ffffffffff7fffff -8388608 2 ffffffffff800000 -32769 24 ffffffffffff7fff -32768 42 ffffffffffff8000 -129 4 ffffffffffffff7f -128 45 ffffffffffffff80 -1 17 ffffffffffffffff 0 3 0000000000000000 127 25 000000000000007f 128 41 0000000000000080 255 29 00000000000000ff 256 14 0000000000000100 32767 10 0000000000007fff 32768 22 0000000000008000 65535 6 000000000000ffff 65536 33 0000000000010000 8388607 7 00000000007fffff 8388608 5 0000000000800000 16777215 9 0000000000ffffff 16777216 15 0000000001000000 2147483647 46 000000007fffffff 2147483648 36 0000000080000000 4294967295 37 00000000ffffffff 4294967296 11 0000000100000000 549755813887 1 0000007fffffffff 549755813888 35 0000008000000000 1099511627775 20 000000ffffffffff 1099511627776 8 0000010000000000 140737488355327 38 00007fffffffffff 140737488355328 34 0000800000000000 281474976710655 19 0000ffffffffffff 281474976710656 32 0001000000000000 36028797018963967 40 007fffffffffffff 36028797018963968 23 0080000000000000 72057594037927935 27 00ffffffffffffff 72057594037927936 16 0100000000000000 9223372036854775807 18 7fffffffffffffff}
+do_test boundary4-1.5 {
+  db eval {
+    SELECT rowid, a, x FROM t1 ORDER BY +rowid DESC
+  }
+} {9223372036854775807 18 7fffffffffffffff 72057594037927936 16 0100000000000000 72057594037927935 27 00ffffffffffffff 36028797018963968 23 0080000000000000 36028797018963967 40 007fffffffffffff 281474976710656 32 0001000000000000 281474976710655 19 0000ffffffffffff 140737488355328 34 0000800000000000 140737488355327 38 00007fffffffffff 1099511627776 8 0000010000000000 1099511627775 20 000000ffffffffff 549755813888 35 0000008000000000 549755813887 1 0000007fffffffff 4294967296 11 0000000100000000 4294967295 37 00000000ffffffff 2147483648 36 0000000080000000 2147483647 46 000000007fffffff 16777216 15 0000000001000000 16777215 9 0000000000ffffff 8388608 5 0000000000800000 8388607 7 00000000007fffff 65536 33 0000000000010000 65535 6 000000000000ffff 32768 22 0000000000008000 32767 10 0000000000007fff 256 14 0000000000000100 255 29 00000000000000ff 128 41 0000000000000080 127 25 000000000000007f 0 3 0000000000000000 -1 17 ffffffffffffffff -128 45 ffffffffffffff80 -129 4 ffffffffffffff7f -32768 42 ffffffffffff8000 -32769 24 ffffffffffff7fff -8388608 2 ffffffffff800000 -8388609 21 ffffffffff7fffff -2147483648 31 ffffffff80000000 -2147483649 39 ffffffff7fffffff -549755813888 12 ffffff8000000000 -549755813889 28 ffffff7fffffffff -140737488355328 13 ffff800000000000 -140737488355329 44 ffff7fffffffffff -36028797018963968 43 ff80000000000000 -36028797018963969 30 ff7fffffffffffff -9223372036854775808 26 8000000000000000}
+do_test boundary4-1.6 {
+  db eval {
+    SELECT rowid, a, x FROM t1 ORDER BY rowid DESC
+  }
+} {9223372036854775807 18 7fffffffffffffff 72057594037927936 16 0100000000000000 72057594037927935 27 00ffffffffffffff 36028797018963968 23 0080000000000000 36028797018963967 40 007fffffffffffff 281474976710656 32 0001000000000000 281474976710655 19 0000ffffffffffff 140737488355328 34 0000800000000000 140737488355327 38 00007fffffffffff 1099511627776 8 0000010000000000 1099511627775 20 000000ffffffffff 549755813888 35 0000008000000000 549755813887 1 0000007fffffffff 4294967296 11 0000000100000000 4294967295 37 00000000ffffffff 2147483648 36 0000000080000000 2147483647 46 000000007fffffff 16777216 15 0000000001000000 16777215 9 0000000000ffffff 8388608 5 0000000000800000 8388607 7 00000000007fffff 65536 33 0000000000010000 65535 6 000000000000ffff 32768 22 0000000000008000 32767 10 0000000000007fff 256 14 0000000000000100 255 29 00000000000000ff 128 41 0000000000000080 127 25 000000000000007f 0 3 0000000000000000 -1 17 ffffffffffffffff -128 45 ffffffffffffff80 -129 4 ffffffffffffff7f -32768 42 ffffffffffff8000 -32769 24 ffffffffffff7fff -8388608 2 ffffffffff800000 -8388609 21 ffffffffff7fffff -2147483648 31 ffffffff80000000 -2147483649 39 ffffffff7fffffff -549755813888 12 ffffff8000000000 -549755813889 28 ffffff7fffffffff -140737488355328 13 ffff800000000000 -140737488355329 44 ffff7fffffffffff -36028797018963968 43 ff80000000000000 -36028797018963969 30 ff7fffffffffffff -9223372036854775808 26 8000000000000000}
+do_test boundary4-1.7 {
+  db eval {
+    SELECT rowid, a, x FROM t1 ORDER BY +a
+  }
+} {549755813887 1 0000007fffffffff -8388608 2 ffffffffff800000 0 3 0000000000000000 -129 4 ffffffffffffff7f 8388608 5 0000000000800000 65535 6 000000000000ffff 8388607 7 00000000007fffff 1099511627776 8 0000010000000000 16777215 9 0000000000ffffff 32767 10 0000000000007fff 4294967296 11 0000000100000000 -549755813888 12 ffffff8000000000 -140737488355328 13 ffff800000000000 256 14 0000000000000100 16777216 15 0000000001000000 72057594037927936 16 0100000000000000 -1 17 ffffffffffffffff 9223372036854775807 18 7fffffffffffffff 281474976710655 19 0000ffffffffffff 1099511627775 20 000000ffffffffff -8388609 21 ffffffffff7fffff 32768 22 0000000000008000 36028797018963968 23 0080000000000000 -32769 24 ffffffffffff7fff 127 25 000000000000007f -9223372036854775808 26 8000000000000000 72057594037927935 27 00ffffffffffffff -549755813889 28 ffffff7fffffffff 255 29 00000000000000ff -36028797018963969 30 ff7fffffffffffff -2147483648 31 ffffffff80000000 281474976710656 32 0001000000000000 65536 33 0000000000010000 140737488355328 34 0000800000000000 549755813888 35 0000008000000000 2147483648 36 0000000080000000 4294967295 37 00000000ffffffff 140737488355327 38 00007fffffffffff -2147483649 39 ffffffff7fffffff 36028797018963967 40 007fffffffffffff 128 41 0000000000000080 -32768 42 ffffffffffff8000 -36028797018963968 43 ff80000000000000 -140737488355329 44 ffff7fffffffffff -128 45 ffffffffffffff80 2147483647 46 000000007fffffff}
+do_test boundary4-1.8 {
+  db eval {
+    SELECT rowid, a, x FROM t1 ORDER BY a
+  }
+} {549755813887 1 0000007fffffffff -8388608 2 ffffffffff800000 0 3 0000000000000000 -129 4 ffffffffffffff7f 8388608 5 0000000000800000 65535 6 000000000000ffff 8388607 7 00000000007fffff 1099511627776 8 0000010000000000 16777215 9 0000000000ffffff 32767 10 0000000000007fff 4294967296 11 0000000100000000 -549755813888 12 ffffff8000000000 -140737488355328 13 ffff800000000000 256 14 0000000000000100 16777216 15 0000000001000000 72057594037927936 16 0100000000000000 -1 17 ffffffffffffffff 9223372036854775807 18 7fffffffffffffff 281474976710655 19 0000ffffffffffff 1099511627775 20 000000ffffffffff -8388609 21 ffffffffff7fffff 32768 22 0000000000008000 36028797018963968 23 0080000000000000 -32769 24 ffffffffffff7fff 127 25 000000000000007f -9223372036854775808 26 8000000000000000 72057594037927935 27 00ffffffffffffff -549755813889 28 ffffff7fffffffff 255 29 00000000000000ff -36028797018963969 30 ff7fffffffffffff -2147483648 31 ffffffff80000000 281474976710656 32 0001000000000000 65536 33 0000000000010000 140737488355328 34 0000800000000000 549755813888 35 0000008000000000 2147483648 36 0000000080000000 4294967295 37 00000000ffffffff 140737488355327 38 00007fffffffffff -2147483649 39 ffffffff7fffffff 36028797018963967 40 007fffffffffffff 128 41 0000000000000080 -32768 42 ffffffffffff8000 -36028797018963968 43 ff80000000000000 -140737488355329 44 ffff7fffffffffff -128 45 ffffffffffffff80 2147483647 46 000000007fffffff}
+do_test boundary4-1.9 {
+  db eval {
+    SELECT rowid, a, x FROM t1 ORDER BY +a DESC
+  }
+} {2147483647 46 000000007fffffff -128 45 ffffffffffffff80 -140737488355329 44 ffff7fffffffffff -36028797018963968 43 ff80000000000000 -32768 42 ffffffffffff8000 128 41 0000000000000080 36028797018963967 40 007fffffffffffff -2147483649 39 ffffffff7fffffff 140737488355327 38 00007fffffffffff 4294967295 37 00000000ffffffff 2147483648 36 0000000080000000 549755813888 35 0000008000000000 140737488355328 34 0000800000000000 65536 33 0000000000010000 281474976710656 32 0001000000000000 -2147483648 31 ffffffff80000000 -36028797018963969 30 ff7fffffffffffff 255 29 00000000000000ff -549755813889 28 ffffff7fffffffff 72057594037927935 27 00ffffffffffffff -9223372036854775808 26 8000000000000000 127 25 000000000000007f -32769 24 ffffffffffff7fff 36028797018963968 23 0080000000000000 32768 22 0000000000008000 -8388609 21 ffffffffff7fffff 1099511627775 20 000000ffffffffff 281474976710655 19 0000ffffffffffff 9223372036854775807 18 7fffffffffffffff -1 17 ffffffffffffffff 72057594037927936 16 0100000000000000 16777216 15 0000000001000000 256 14 0000000000000100 -140737488355328 13 ffff800000000000 -549755813888 12 ffffff8000000000 4294967296 11 0000000100000000 32767 10 0000000000007fff 16777215 9 0000000000ffffff 1099511627776 8 0000010000000000 8388607 7 00000000007fffff 65535 6 000000000000ffff 8388608 5 0000000000800000 -129 4 ffffffffffffff7f 0 3 0000000000000000 -8388608 2 ffffffffff800000 549755813887 1 0000007fffffffff}
+do_test boundary4-1.10 {
+  db eval {
+    SELECT rowid, a, x FROM t1 ORDER BY a DESC
+  }
+} {2147483647 46 000000007fffffff -128 45 ffffffffffffff80 -140737488355329 44 ffff7fffffffffff -36028797018963968 43 ff80000000000000 -32768 42 ffffffffffff8000 128 41 0000000000000080 36028797018963967 40 007fffffffffffff -2147483649 39 ffffffff7fffffff 140737488355327 38 00007fffffffffff 4294967295 37 00000000ffffffff 2147483648 36 0000000080000000 549755813888 35 0000008000000000 140737488355328 34 0000800000000000 65536 33 0000000000010000 281474976710656 32 0001000000000000 -2147483648 31 ffffffff80000000 -36028797018963969 30 ff7fffffffffffff 255 29 00000000000000ff -549755813889 28 ffffff7fffffffff 72057594037927935 27 00ffffffffffffff -9223372036854775808 26 8000000000000000 127 25 000000000000007f -32769 24 ffffffffffff7fff 36028797018963968 23 0080000000000000 32768 22 0000000000008000 -8388609 21 ffffffffff7fffff 1099511627775 20 000000ffffffffff 281474976710655 19 0000ffffffffffff 9223372036854775807 18 7fffffffffffffff -1 17 ffffffffffffffff 72057594037927936 16 0100000000000000 16777216 15 0000000001000000 256 14 0000000000000100 -140737488355328 13 ffff800000000000 -549755813888 12 ffffff8000000000 4294967296 11 0000000100000000 32767 10 0000000000007fff 16777215 9 0000000000ffffff 1099511627776 8 0000010000000000 8388607 7 00000000007fffff 65535 6 000000000000ffff 8388608 5 0000000000800000 -129 4 ffffffffffffff7f 0 3 0000000000000000 -8388608 2 ffffffffff800000 549755813887 1 0000007fffffffff}
+do_test boundary4-1.11 {
+  db eval {
+    SELECT rowid, a, x FROM t1 ORDER BY +x
+  }
+} {0 3 0000000000000000 127 25 000000000000007f 128 41 0000000000000080 255 29 00000000000000ff 256 14 0000000000000100 32767 10 0000000000007fff 32768 22 0000000000008000 65535 6 000000000000ffff 65536 33 0000000000010000 8388607 7 00000000007fffff 8388608 5 0000000000800000 16777215 9 0000000000ffffff 16777216 15 0000000001000000 2147483647 46 000000007fffffff 2147483648 36 0000000080000000 4294967295 37 00000000ffffffff 4294967296 11 0000000100000000 549755813887 1 0000007fffffffff 549755813888 35 0000008000000000 1099511627775 20 000000ffffffffff 1099511627776 8 0000010000000000 140737488355327 38 00007fffffffffff 140737488355328 34 0000800000000000 281474976710655 19 0000ffffffffffff 281474976710656 32 0001000000000000 36028797018963967 40 007fffffffffffff 36028797018963968 23 0080000000000000 72057594037927935 27 00ffffffffffffff 72057594037927936 16 0100000000000000 9223372036854775807 18 7fffffffffffffff -9223372036854775808 26 8000000000000000 -36028797018963969 30 ff7fffffffffffff -36028797018963968 43 ff80000000000000 -140737488355329 44 ffff7fffffffffff -140737488355328 13 ffff800000000000 -549755813889 28 ffffff7fffffffff -549755813888 12 ffffff8000000000 -2147483649 39 ffffffff7fffffff -2147483648 31 ffffffff80000000 -8388609 21 ffffffffff7fffff -8388608 2 ffffffffff800000 -32769 24 ffffffffffff7fff -32768 42 ffffffffffff8000 -129 4 ffffffffffffff7f -128 45 ffffffffffffff80 -1 17 ffffffffffffffff}
+do_test boundary4-1.12 {
+  db eval {
+    SELECT rowid, a, x FROM t1 ORDER BY x
+  }
+} {0 3 0000000000000000 127 25 000000000000007f 128 41 0000000000000080 255 29 00000000000000ff 256 14 0000000000000100 32767 10 0000000000007fff 32768 22 0000000000008000 65535 6 000000000000ffff 65536 33 0000000000010000 8388607 7 00000000007fffff 8388608 5 0000000000800000 16777215 9 0000000000ffffff 16777216 15 0000000001000000 2147483647 46 000000007fffffff 2147483648 36 0000000080000000 4294967295 37 00000000ffffffff 4294967296 11 0000000100000000 549755813887 1 0000007fffffffff 549755813888 35 0000008000000000 1099511627775 20 000000ffffffffff 1099511627776 8 0000010000000000 140737488355327 38 00007fffffffffff 140737488355328 34 0000800000000000 281474976710655 19 0000ffffffffffff 281474976710656 32 0001000000000000 36028797018963967 40 007fffffffffffff 36028797018963968 23 0080000000000000 72057594037927935 27 00ffffffffffffff 72057594037927936 16 0100000000000000 9223372036854775807 18 7fffffffffffffff -9223372036854775808 26 8000000000000000 -36028797018963969 30 ff7fffffffffffff -36028797018963968 43 ff80000000000000 -140737488355329 44 ffff7fffffffffff -140737488355328 13 ffff800000000000 -549755813889 28 ffffff7fffffffff -549755813888 12 ffffff8000000000 -2147483649 39 ffffffff7fffffff -2147483648 31 ffffffff80000000 -8388609 21 ffffffffff7fffff -8388608 2 ffffffffff800000 -32769 24 ffffffffffff7fff -32768 42 ffffffffffff8000 -129 4 ffffffffffffff7f -128 45 ffffffffffffff80 -1 17 ffffffffffffffff}
+do_test boundary4-1.13 {
+  db eval {
+    SELECT rowid, a, x FROM t1 ORDER BY +x DESC
+  }
+} {-1 17 ffffffffffffffff -128 45 ffffffffffffff80 -129 4 ffffffffffffff7f -32768 42 ffffffffffff8000 -32769 24 ffffffffffff7fff -8388608 2 ffffffffff800000 -8388609 21 ffffffffff7fffff -2147483648 31 ffffffff80000000 -2147483649 39 ffffffff7fffffff -549755813888 12 ffffff8000000000 -549755813889 28 ffffff7fffffffff -140737488355328 13 ffff800000000000 -140737488355329 44 ffff7fffffffffff -36028797018963968 43 ff80000000000000 -36028797018963969 30 ff7fffffffffffff -9223372036854775808 26 8000000000000000 9223372036854775807 18 7fffffffffffffff 72057594037927936 16 0100000000000000 72057594037927935 27 00ffffffffffffff 36028797018963968 23 0080000000000000 36028797018963967 40 007fffffffffffff 281474976710656 32 0001000000000000 281474976710655 19 0000ffffffffffff 140737488355328 34 0000800000000000 140737488355327 38 00007fffffffffff 1099511627776 8 0000010000000000 1099511627775 20 000000ffffffffff 549755813888 35 0000008000000000 549755813887 1 0000007fffffffff 4294967296 11 0000000100000000 4294967295 37 00000000ffffffff 2147483648 36 0000000080000000 2147483647 46 000000007fffffff 16777216 15 0000000001000000 16777215 9 0000000000ffffff 8388608 5 0000000000800000 8388607 7 00000000007fffff 65536 33 0000000000010000 65535 6 000000000000ffff 32768 22 0000000000008000 32767 10 0000000000007fff 256 14 0000000000000100 255 29 00000000000000ff 128 41 0000000000000080 127 25 000000000000007f 0 3 0000000000000000}
+do_test boundary4-1.14 {
+  db eval {
+    SELECT rowid, a, x FROM t1 ORDER BY x DESC
+  }
+} {-1 17 ffffffffffffffff -128 45 ffffffffffffff80 -129 4 ffffffffffffff7f -32768 42 ffffffffffff8000 -32769 24 ffffffffffff7fff -8388608 2 ffffffffff800000 -8388609 21 ffffffffff7fffff -2147483648 31 ffffffff80000000 -2147483649 39 ffffffff7fffffff -549755813888 12 ffffff8000000000 -549755813889 28 ffffff7fffffffff -140737488355328 13 ffff800000000000 -140737488355329 44 ffff7fffffffffff -36028797018963968 43 ff80000000000000 -36028797018963969 30 ff7fffffffffffff -9223372036854775808 26 8000000000000000 9223372036854775807 18 7fffffffffffffff 72057594037927936 16 0100000000000000 72057594037927935 27 00ffffffffffffff 36028797018963968 23 0080000000000000 36028797018963967 40 007fffffffffffff 281474976710656 32 0001000000000000 281474976710655 19 0000ffffffffffff 140737488355328 34 0000800000000000 140737488355327 38 00007fffffffffff 1099511627776 8 0000010000000000 1099511627775 20 000000ffffffffff 549755813888 35 0000008000000000 549755813887 1 0000007fffffffff 4294967296 11 0000000100000000 4294967295 37 00000000ffffffff 2147483648 36 0000000080000000 2147483647 46 000000007fffffff 16777216 15 0000000001000000 16777215 9 0000000000ffffff 8388608 5 0000000000800000 8388607 7 00000000007fffff 65536 33 0000000000010000 65535 6 000000000000ffff 32768 22 0000000000008000 32767 10 0000000000007fff 256 14 0000000000000100 255 29 00000000000000ff 128 41 0000000000000080 127 25 000000000000007f 0 3 0000000000000000}
+do_test boundary4-2.1 {
+  db eval {
+    UPDATE t1 SET rowid=a, a=rowid
+  }
+} {}
+do_test boundary4-2.3 {
+  db eval {
+    SELECT a, rowid, x FROM t1 ORDER BY +a
+  }
+} {-9223372036854775808 26 8000000000000000 -36028797018963969 30 ff7fffffffffffff -36028797018963968 43 ff80000000000000 -140737488355329 44 ffff7fffffffffff -140737488355328 13 ffff800000000000 -549755813889 28 ffffff7fffffffff -549755813888 12 ffffff8000000000 -2147483649 39 ffffffff7fffffff -2147483648 31 ffffffff80000000 -8388609 21 ffffffffff7fffff -8388608 2 ffffffffff800000 -32769 24 ffffffffffff7fff -32768 42 ffffffffffff8000 -129 4 ffffffffffffff7f -128 45 ffffffffffffff80 -1 17 ffffffffffffffff 0 3 0000000000000000 127 25 000000000000007f 128 41 0000000000000080 255 29 00000000000000ff 256 14 0000000000000100 32767 10 0000000000007fff 32768 22 0000000000008000 65535 6 000000000000ffff 65536 33 0000000000010000 8388607 7 00000000007fffff 8388608 5 0000000000800000 16777215 9 0000000000ffffff 16777216 15 0000000001000000 2147483647 46 000000007fffffff 2147483648 36 0000000080000000 4294967295 37 00000000ffffffff 4294967296 11 0000000100000000 549755813887 1 0000007fffffffff 549755813888 35 0000008000000000 1099511627775 20 000000ffffffffff 1099511627776 8 0000010000000000 140737488355327 38 00007fffffffffff 140737488355328 34 0000800000000000 281474976710655 19 0000ffffffffffff 281474976710656 32 0001000000000000 36028797018963967 40 007fffffffffffff 36028797018963968 23 0080000000000000 72057594037927935 27 00ffffffffffffff 72057594037927936 16 0100000000000000 9223372036854775807 18 7fffffffffffffff}
+do_test boundary4-2.4 {
+  db eval {
+    SELECT a, rowid, x FROM t1 ORDER BY a
+  }
+} {-9223372036854775808 26 8000000000000000 -36028797018963969 30 ff7fffffffffffff -36028797018963968 43 ff80000000000000 -140737488355329 44 ffff7fffffffffff -140737488355328 13 ffff800000000000 -549755813889 28 ffffff7fffffffff -549755813888 12 ffffff8000000000 -2147483649 39 ffffffff7fffffff -2147483648 31 ffffffff80000000 -8388609 21 ffffffffff7fffff -8388608 2 ffffffffff800000 -32769 24 ffffffffffff7fff -32768 42 ffffffffffff8000 -129 4 ffffffffffffff7f -128 45 ffffffffffffff80 -1 17 ffffffffffffffff 0 3 0000000000000000 127 25 000000000000007f 128 41 0000000000000080 255 29 00000000000000ff 256 14 0000000000000100 32767 10 0000000000007fff 32768 22 0000000000008000 65535 6 000000000000ffff 65536 33 0000000000010000 8388607 7 00000000007fffff 8388608 5 0000000000800000 16777215 9 0000000000ffffff 16777216 15 0000000001000000 2147483647 46 000000007fffffff 2147483648 36 0000000080000000 4294967295 37 00000000ffffffff 4294967296 11 0000000100000000 549755813887 1 0000007fffffffff 549755813888 35 0000008000000000 1099511627775 20 000000ffffffffff 1099511627776 8 0000010000000000 140737488355327 38 00007fffffffffff 140737488355328 34 0000800000000000 281474976710655 19 0000ffffffffffff 281474976710656 32 0001000000000000 36028797018963967 40 007fffffffffffff 36028797018963968 23 0080000000000000 72057594037927935 27 00ffffffffffffff 72057594037927936 16 0100000000000000 9223372036854775807 18 7fffffffffffffff}
+do_test boundary4-2.5 {
+  db eval {
+    SELECT a, rowid, x FROM t1 ORDER BY +a DESC
+  }
+} {9223372036854775807 18 7fffffffffffffff 72057594037927936 16 0100000000000000 72057594037927935 27 00ffffffffffffff 36028797018963968 23 0080000000000000 36028797018963967 40 007fffffffffffff 281474976710656 32 0001000000000000 281474976710655 19 0000ffffffffffff 140737488355328 34 0000800000000000 140737488355327 38 00007fffffffffff 1099511627776 8 0000010000000000 1099511627775 20 000000ffffffffff 549755813888 35 0000008000000000 549755813887 1 0000007fffffffff 4294967296 11 0000000100000000 4294967295 37 00000000ffffffff 2147483648 36 0000000080000000 2147483647 46 000000007fffffff 16777216 15 0000000001000000 16777215 9 0000000000ffffff 8388608 5 0000000000800000 8388607 7 00000000007fffff 65536 33 0000000000010000 65535 6 000000000000ffff 32768 22 0000000000008000 32767 10 0000000000007fff 256 14 0000000000000100 255 29 00000000000000ff 128 41 0000000000000080 127 25 000000000000007f 0 3 0000000000000000 -1 17 ffffffffffffffff -128 45 ffffffffffffff80 -129 4 ffffffffffffff7f -32768 42 ffffffffffff8000 -32769 24 ffffffffffff7fff -8388608 2 ffffffffff800000 -8388609 21 ffffffffff7fffff -2147483648 31 ffffffff80000000 -2147483649 39 ffffffff7fffffff -549755813888 12 ffffff8000000000 -549755813889 28 ffffff7fffffffff -140737488355328 13 ffff800000000000 -140737488355329 44 ffff7fffffffffff -36028797018963968 43 ff80000000000000 -36028797018963969 30 ff7fffffffffffff -9223372036854775808 26 8000000000000000}
+do_test boundary4-2.6 {
+  db eval {
+    SELECT a, rowid, x FROM t1 ORDER BY a DESC
+  }
+} {9223372036854775807 18 7fffffffffffffff 72057594037927936 16 0100000000000000 72057594037927935 27 00ffffffffffffff 36028797018963968 23 0080000000000000 36028797018963967 40 007fffffffffffff 281474976710656 32 0001000000000000 281474976710655 19 0000ffffffffffff 140737488355328 34 0000800000000000 140737488355327 38 00007fffffffffff 1099511627776 8 0000010000000000 1099511627775 20 000000ffffffffff 549755813888 35 0000008000000000 549755813887 1 0000007fffffffff 4294967296 11 0000000100000000 4294967295 37 00000000ffffffff 2147483648 36 0000000080000000 2147483647 46 000000007fffffff 16777216 15 0000000001000000 16777215 9 0000000000ffffff 8388608 5 0000000000800000 8388607 7 00000000007fffff 65536 33 0000000000010000 65535 6 000000000000ffff 32768 22 0000000000008000 32767 10 0000000000007fff 256 14 0000000000000100 255 29 00000000000000ff 128 41 0000000000000080 127 25 000000000000007f 0 3 0000000000000000 -1 17 ffffffffffffffff -128 45 ffffffffffffff80 -129 4 ffffffffffffff7f -32768 42 ffffffffffff8000 -32769 24 ffffffffffff7fff -8388608 2 ffffffffff800000 -8388609 21 ffffffffff7fffff -2147483648 31 ffffffff80000000 -2147483649 39 ffffffff7fffffff -549755813888 12 ffffff8000000000 -549755813889 28 ffffff7fffffffff -140737488355328 13 ffff800000000000 -140737488355329 44 ffff7fffffffffff -36028797018963968 43 ff80000000000000 -36028797018963969 30 ff7fffffffffffff -9223372036854775808 26 8000000000000000}
+do_test boundary4-2.7 {
+  db eval {
+    SELECT a, rowid, x FROM t1 ORDER BY +rowid
+  }
+} {549755813887 1 0000007fffffffff -8388608 2 ffffffffff800000 0 3 0000000000000000 -129 4 ffffffffffffff7f 8388608 5 0000000000800000 65535 6 000000000000ffff 8388607 7 00000000007fffff 1099511627776 8 0000010000000000 16777215 9 0000000000ffffff 32767 10 0000000000007fff 4294967296 11 0000000100000000 -549755813888 12 ffffff8000000000 -140737488355328 13 ffff800000000000 256 14 0000000000000100 16777216 15 0000000001000000 72057594037927936 16 0100000000000000 -1 17 ffffffffffffffff 9223372036854775807 18 7fffffffffffffff 281474976710655 19 0000ffffffffffff 1099511627775 20 000000ffffffffff -8388609 21 ffffffffff7fffff 32768 22 0000000000008000 36028797018963968 23 0080000000000000 -32769 24 ffffffffffff7fff 127 25 000000000000007f -9223372036854775808 26 8000000000000000 72057594037927935 27 00ffffffffffffff -549755813889 28 ffffff7fffffffff 255 29 00000000000000ff -36028797018963969 30 ff7fffffffffffff -2147483648 31 ffffffff80000000 281474976710656 32 0001000000000000 65536 33 0000000000010000 140737488355328 34 0000800000000000 549755813888 35 0000008000000000 2147483648 36 0000000080000000 4294967295 37 00000000ffffffff 140737488355327 38 00007fffffffffff -2147483649 39 ffffffff7fffffff 36028797018963967 40 007fffffffffffff 128 41 0000000000000080 -32768 42 ffffffffffff8000 -36028797018963968 43 ff80000000000000 -140737488355329 44 ffff7fffffffffff -128 45 ffffffffffffff80 2147483647 46 000000007fffffff}
+do_test boundary4-2.8 {
+  db eval {
+    SELECT a, rowid, x FROM t1 ORDER BY rowid
+  }
+} {549755813887 1 0000007fffffffff -8388608 2 ffffffffff800000 0 3 0000000000000000 -129 4 ffffffffffffff7f 8388608 5 0000000000800000 65535 6 000000000000ffff 8388607 7 00000000007fffff 1099511627776 8 0000010000000000 16777215 9 0000000000ffffff 32767 10 0000000000007fff 4294967296 11 0000000100000000 -549755813888 12 ffffff8000000000 -140737488355328 13 ffff800000000000 256 14 0000000000000100 16777216 15 0000000001000000 72057594037927936 16 0100000000000000 -1 17 ffffffffffffffff 9223372036854775807 18 7fffffffffffffff 281474976710655 19 0000ffffffffffff 1099511627775 20 000000ffffffffff -8388609 21 ffffffffff7fffff 32768 22 0000000000008000 36028797018963968 23 0080000000000000 -32769 24 ffffffffffff7fff 127 25 000000000000007f -9223372036854775808 26 8000000000000000 72057594037927935 27 00ffffffffffffff -549755813889 28 ffffff7fffffffff 255 29 00000000000000ff -36028797018963969 30 ff7fffffffffffff -2147483648 31 ffffffff80000000 281474976710656 32 0001000000000000 65536 33 0000000000010000 140737488355328 34 0000800000000000 549755813888 35 0000008000000000 2147483648 36 0000000080000000 4294967295 37 00000000ffffffff 140737488355327 38 00007fffffffffff -2147483649 39 ffffffff7fffffff 36028797018963967 40 007fffffffffffff 128 41 0000000000000080 -32768 42 ffffffffffff8000 -36028797018963968 43 ff80000000000000 -140737488355329 44 ffff7fffffffffff -128 45 ffffffffffffff80 2147483647 46 000000007fffffff}
+do_test boundary4-2.9 {
+  db eval {
+    SELECT a, rowid, x FROM t1 ORDER BY +rowid DESC
+  }
+} {2147483647 46 000000007fffffff -128 45 ffffffffffffff80 -140737488355329 44 ffff7fffffffffff -36028797018963968 43 ff80000000000000 -32768 42 ffffffffffff8000 128 41 0000000000000080 36028797018963967 40 007fffffffffffff -2147483649 39 ffffffff7fffffff 140737488355327 38 00007fffffffffff 4294967295 37 00000000ffffffff 2147483648 36 0000000080000000 549755813888 35 0000008000000000 140737488355328 34 0000800000000000 65536 33 0000000000010000 281474976710656 32 0001000000000000 -2147483648 31 ffffffff80000000 -36028797018963969 30 ff7fffffffffffff 255 29 00000000000000ff -549755813889 28 ffffff7fffffffff 72057594037927935 27 00ffffffffffffff -9223372036854775808 26 8000000000000000 127 25 000000000000007f -32769 24 ffffffffffff7fff 36028797018963968 23 0080000000000000 32768 22 0000000000008000 -8388609 21 ffffffffff7fffff 1099511627775 20 000000ffffffffff 281474976710655 19 0000ffffffffffff 9223372036854775807 18 7fffffffffffffff -1 17 ffffffffffffffff 72057594037927936 16 0100000000000000 16777216 15 0000000001000000 256 14 0000000000000100 -140737488355328 13 ffff800000000000 -549755813888 12 ffffff8000000000 4294967296 11 0000000100000000 32767 10 0000000000007fff 16777215 9 0000000000ffffff 1099511627776 8 0000010000000000 8388607 7 00000000007fffff 65535 6 000000000000ffff 8388608 5 0000000000800000 -129 4 ffffffffffffff7f 0 3 0000000000000000 -8388608 2 ffffffffff800000 549755813887 1 0000007fffffffff}
+do_test boundary4-2.10 {
+  db eval {
+    SELECT a, rowid, x FROM t1 ORDER BY rowid DESC
+  }
+} {2147483647 46 000000007fffffff -128 45 ffffffffffffff80 -140737488355329 44 ffff7fffffffffff -36028797018963968 43 ff80000000000000 -32768 42 ffffffffffff8000 128 41 0000000000000080 36028797018963967 40 007fffffffffffff -2147483649 39 ffffffff7fffffff 140737488355327 38 00007fffffffffff 4294967295 37 00000000ffffffff 2147483648 36 0000000080000000 549755813888 35 0000008000000000 140737488355328 34 0000800000000000 65536 33 0000000000010000 281474976710656 32 0001000000000000 -2147483648 31 ffffffff80000000 -36028797018963969 30 ff7fffffffffffff 255 29 00000000000000ff -549755813889 28 ffffff7fffffffff 72057594037927935 27 00ffffffffffffff -9223372036854775808 26 8000000000000000 127 25 000000000000007f -32769 24 ffffffffffff7fff 36028797018963968 23 0080000000000000 32768 22 0000000000008000 -8388609 21 ffffffffff7fffff 1099511627775 20 000000ffffffffff 281474976710655 19 0000ffffffffffff 9223372036854775807 18 7fffffffffffffff -1 17 ffffffffffffffff 72057594037927936 16 0100000000000000 16777216 15 0000000001000000 256 14 0000000000000100 -140737488355328 13 ffff800000000000 -549755813888 12 ffffff8000000000 4294967296 11 0000000100000000 32767 10 0000000000007fff 16777215 9 0000000000ffffff 1099511627776 8 0000010000000000 8388607 7 00000000007fffff 65535 6 000000000000ffff 8388608 5 0000000000800000 -129 4 ffffffffffffff7f 0 3 0000000000000000 -8388608 2 ffffffffff800000 549755813887 1 0000007fffffffff}
+do_test boundary4-2.11 {
+  db eval {
+    SELECT a, rowid, x FROM t1 ORDER BY +x
+  }
+} {0 3 0000000000000000 127 25 000000000000007f 128 41 0000000000000080 255 29 00000000000000ff 256 14 0000000000000100 32767 10 0000000000007fff 32768 22 0000000000008000 65535 6 000000000000ffff 65536 33 0000000000010000 8388607 7 00000000007fffff 8388608 5 0000000000800000 16777215 9 0000000000ffffff 16777216 15 0000000001000000 2147483647 46 000000007fffffff 2147483648 36 0000000080000000 4294967295 37 00000000ffffffff 4294967296 11 0000000100000000 549755813887 1 0000007fffffffff 549755813888 35 0000008000000000 1099511627775 20 000000ffffffffff 1099511627776 8 0000010000000000 140737488355327 38 00007fffffffffff 140737488355328 34 0000800000000000 281474976710655 19 0000ffffffffffff 281474976710656 32 0001000000000000 36028797018963967 40 007fffffffffffff 36028797018963968 23 0080000000000000 72057594037927935 27 00ffffffffffffff 72057594037927936 16 0100000000000000 9223372036854775807 18 7fffffffffffffff -9223372036854775808 26 8000000000000000 -36028797018963969 30 ff7fffffffffffff -36028797018963968 43 ff80000000000000 -140737488355329 44 ffff7fffffffffff -140737488355328 13 ffff800000000000 -549755813889 28 ffffff7fffffffff -549755813888 12 ffffff8000000000 -2147483649 39 ffffffff7fffffff -2147483648 31 ffffffff80000000 -8388609 21 ffffffffff7fffff -8388608 2 ffffffffff800000 -32769 24 ffffffffffff7fff -32768 42 ffffffffffff8000 -129 4 ffffffffffffff7f -128 45 ffffffffffffff80 -1 17 ffffffffffffffff}
+do_test boundary4-2.12 {
+  db eval {
+    SELECT a, rowid, x FROM t1 ORDER BY x
+  }
+} {0 3 0000000000000000 127 25 000000000000007f 128 41 0000000000000080 255 29 00000000000000ff 256 14 0000000000000100 32767 10 0000000000007fff 32768 22 0000000000008000 65535 6 000000000000ffff 65536 33 0000000000010000 8388607 7 00000000007fffff 8388608 5 0000000000800000 16777215 9 0000000000ffffff 16777216 15 0000000001000000 2147483647 46 000000007fffffff 2147483648 36 0000000080000000 4294967295 37 00000000ffffffff 4294967296 11 0000000100000000 549755813887 1 0000007fffffffff 549755813888 35 0000008000000000 1099511627775 20 000000ffffffffff 1099511627776 8 0000010000000000 140737488355327 38 00007fffffffffff 140737488355328 34 0000800000000000 281474976710655 19 0000ffffffffffff 281474976710656 32 0001000000000000 36028797018963967 40 007fffffffffffff 36028797018963968 23 0080000000000000 72057594037927935 27 00ffffffffffffff 72057594037927936 16 0100000000000000 9223372036854775807 18 7fffffffffffffff -9223372036854775808 26 8000000000000000 -36028797018963969 30 ff7fffffffffffff -36028797018963968 43 ff80000000000000 -140737488355329 44 ffff7fffffffffff -140737488355328 13 ffff800000000000 -549755813889 28 ffffff7fffffffff -549755813888 12 ffffff8000000000 -2147483649 39 ffffffff7fffffff -2147483648 31 ffffffff80000000 -8388609 21 ffffffffff7fffff -8388608 2 ffffffffff800000 -32769 24 ffffffffffff7fff -32768 42 ffffffffffff8000 -129 4 ffffffffffffff7f -128 45 ffffffffffffff80 -1 17 ffffffffffffffff}
+do_test boundary4-2.13 {
+  db eval {
+    SELECT a, rowid, x FROM t1 ORDER BY +x DESC
+  }
+} {-1 17 ffffffffffffffff -128 45 ffffffffffffff80 -129 4 ffffffffffffff7f -32768 42 ffffffffffff8000 -32769 24 ffffffffffff7fff -8388608 2 ffffffffff800000 -8388609 21 ffffffffff7fffff -2147483648 31 ffffffff80000000 -2147483649 39 ffffffff7fffffff -549755813888 12 ffffff8000000000 -549755813889 28 ffffff7fffffffff -140737488355328 13 ffff800000000000 -140737488355329 44 ffff7fffffffffff -36028797018963968 43 ff80000000000000 -36028797018963969 30 ff7fffffffffffff -9223372036854775808 26 8000000000000000 9223372036854775807 18 7fffffffffffffff 72057594037927936 16 0100000000000000 72057594037927935 27 00ffffffffffffff 36028797018963968 23 0080000000000000 36028797018963967 40 007fffffffffffff 281474976710656 32 0001000000000000 281474976710655 19 0000ffffffffffff 140737488355328 34 0000800000000000 140737488355327 38 00007fffffffffff 1099511627776 8 0000010000000000 1099511627775 20 000000ffffffffff 549755813888 35 0000008000000000 549755813887 1 0000007fffffffff 4294967296 11 0000000100000000 4294967295 37 00000000ffffffff 2147483648 36 0000000080000000 2147483647 46 000000007fffffff 16777216 15 0000000001000000 16777215 9 0000000000ffffff 8388608 5 0000000000800000 8388607 7 00000000007fffff 65536 33 0000000000010000 65535 6 000000000000ffff 32768 22 0000000000008000 32767 10 0000000000007fff 256 14 0000000000000100 255 29 00000000000000ff 128 41 0000000000000080 127 25 000000000000007f 0 3 0000000000000000}
+do_test boundary4-2.14 {
+  db eval {
+    SELECT a, rowid, x FROM t1 ORDER BY x DESC
+  }
+} {-1 17 ffffffffffffffff -128 45 ffffffffffffff80 -129 4 ffffffffffffff7f -32768 42 ffffffffffff8000 -32769 24 ffffffffffff7fff -8388608 2 ffffffffff800000 -8388609 21 ffffffffff7fffff -2147483648 31 ffffffff80000000 -2147483649 39 ffffffff7fffffff -549755813888 12 ffffff8000000000 -549755813889 28 ffffff7fffffffff -140737488355328 13 ffff800000000000 -140737488355329 44 ffff7fffffffffff -36028797018963968 43 ff80000000000000 -36028797018963969 30 ff7fffffffffffff -9223372036854775808 26 8000000000000000 9223372036854775807 18 7fffffffffffffff 72057594037927936 16 0100000000000000 72057594037927935 27 00ffffffffffffff 36028797018963968 23 0080000000000000 36028797018963967 40 007fffffffffffff 281474976710656 32 0001000000000000 281474976710655 19 0000ffffffffffff 140737488355328 34 0000800000000000 140737488355327 38 00007fffffffffff 1099511627776 8 0000010000000000 1099511627775 20 000000ffffffffff 549755813888 35 0000008000000000 549755813887 1 0000007fffffffff 4294967296 11 0000000100000000 4294967295 37 00000000ffffffff 2147483648 36 0000000080000000 2147483647 46 000000007fffffff 16777216 15 0000000001000000 16777215 9 0000000000ffffff 8388608 5 0000000000800000 8388607 7 00000000007fffff 65536 33 0000000000010000 65535 6 000000000000ffff 32768 22 0000000000008000 32767 10 0000000000007fff 256 14 0000000000000100 255 29 00000000000000ff 128 41 0000000000000080 127 25 000000000000007f 0 3 0000000000000000}
+do_test boundary4-3.1 {
+  db eval {
+    UPDATE t1 SET rowid=a, a=rowid
+  }
+} {}
+do_test boundary4-3.2 {
+  db eval {
+    ALTER TABLE t1 ADD COLUMN z; UPDATE t1 SET z=zeroblob(600)
+  }
+} {}
+do_test boundary4-3.3 {
+  db eval {
+    SELECT rowid, a, x FROM t1 ORDER BY +rowid
+  }
+} {-9223372036854775808 26 8000000000000000 -36028797018963969 30 ff7fffffffffffff -36028797018963968 43 ff80000000000000 -140737488355329 44 ffff7fffffffffff -140737488355328 13 ffff800000000000 -549755813889 28 ffffff7fffffffff -549755813888 12 ffffff8000000000 -2147483649 39 ffffffff7fffffff -2147483648 31 ffffffff80000000 -8388609 21 ffffffffff7fffff -8388608 2 ffffffffff800000 -32769 24 ffffffffffff7fff -32768 42 ffffffffffff8000 -129 4 ffffffffffffff7f -128 45 ffffffffffffff80 -1 17 ffffffffffffffff 0 3 0000000000000000 127 25 000000000000007f 128 41 0000000000000080 255 29 00000000000000ff 256 14 0000000000000100 32767 10 0000000000007fff 32768 22 0000000000008000 65535 6 000000000000ffff 65536 33 0000000000010000 8388607 7 00000000007fffff 8388608 5 0000000000800000 16777215 9 0000000000ffffff 16777216 15 0000000001000000 2147483647 46 000000007fffffff 2147483648 36 0000000080000000 4294967295 37 00000000ffffffff 4294967296 11 0000000100000000 549755813887 1 0000007fffffffff 549755813888 35 0000008000000000 1099511627775 20 000000ffffffffff 1099511627776 8 0000010000000000 140737488355327 38 00007fffffffffff 140737488355328 34 0000800000000000 281474976710655 19 0000ffffffffffff 281474976710656 32 0001000000000000 36028797018963967 40 007fffffffffffff 36028797018963968 23 0080000000000000 72057594037927935 27 00ffffffffffffff 72057594037927936 16 0100000000000000 9223372036854775807 18 7fffffffffffffff}
+do_test boundary4-3.4 {
+  db eval {
+    SELECT rowid, a, x FROM t1 ORDER BY rowid
+  }
+} {-9223372036854775808 26 8000000000000000 -36028797018963969 30 ff7fffffffffffff -36028797018963968 43 ff80000000000000 -140737488355329 44 ffff7fffffffffff -140737488355328 13 ffff800000000000 -549755813889 28 ffffff7fffffffff -549755813888 12 ffffff8000000000 -2147483649 39 ffffffff7fffffff -2147483648 31 ffffffff80000000 -8388609 21 ffffffffff7fffff -8388608 2 ffffffffff800000 -32769 24 ffffffffffff7fff -32768 42 ffffffffffff8000 -129 4 ffffffffffffff7f -128 45 ffffffffffffff80 -1 17 ffffffffffffffff 0 3 0000000000000000 127 25 000000000000007f 128 41 0000000000000080 255 29 00000000000000ff 256 14 0000000000000100 32767 10 0000000000007fff 32768 22 0000000000008000 65535 6 000000000000ffff 65536 33 0000000000010000 8388607 7 00000000007fffff 8388608 5 0000000000800000 16777215 9 0000000000ffffff 16777216 15 0000000001000000 2147483647 46 000000007fffffff 2147483648 36 0000000080000000 4294967295 37 00000000ffffffff 4294967296 11 0000000100000000 549755813887 1 0000007fffffffff 549755813888 35 0000008000000000 1099511627775 20 000000ffffffffff 1099511627776 8 0000010000000000 140737488355327 38 00007fffffffffff 140737488355328 34 0000800000000000 281474976710655 19 0000ffffffffffff 281474976710656 32 0001000000000000 36028797018963967 40 007fffffffffffff 36028797018963968 23 0080000000000000 72057594037927935 27 00ffffffffffffff 72057594037927936 16 0100000000000000 9223372036854775807 18 7fffffffffffffff}
+do_test boundary4-3.5 {
+  db eval {
+    SELECT rowid, a, x FROM t1 ORDER BY +rowid DESC
+  }
+} {9223372036854775807 18 7fffffffffffffff 72057594037927936 16 0100000000000000 72057594037927935 27 00ffffffffffffff 36028797018963968 23 0080000000000000 36028797018963967 40 007fffffffffffff 281474976710656 32 0001000000000000 281474976710655 19 0000ffffffffffff 140737488355328 34 0000800000000000 140737488355327 38 00007fffffffffff 1099511627776 8 0000010000000000 1099511627775 20 000000ffffffffff 549755813888 35 0000008000000000 549755813887 1 0000007fffffffff 4294967296 11 0000000100000000 4294967295 37 00000000ffffffff 2147483648 36 0000000080000000 2147483647 46 000000007fffffff 16777216 15 0000000001000000 16777215 9 0000000000ffffff 8388608 5 0000000000800000 8388607 7 00000000007fffff 65536 33 0000000000010000 65535 6 000000000000ffff 32768 22 0000000000008000 32767 10 0000000000007fff 256 14 0000000000000100 255 29 00000000000000ff 128 41 0000000000000080 127 25 000000000000007f 0 3 0000000000000000 -1 17 ffffffffffffffff -128 45 ffffffffffffff80 -129 4 ffffffffffffff7f -32768 42 ffffffffffff8000 -32769 24 ffffffffffff7fff -8388608 2 ffffffffff800000 -8388609 21 ffffffffff7fffff -2147483648 31 ffffffff80000000 -2147483649 39 ffffffff7fffffff -549755813888 12 ffffff8000000000 -549755813889 28 ffffff7fffffffff -140737488355328 13 ffff800000000000 -140737488355329 44 ffff7fffffffffff -36028797018963968 43 ff80000000000000 -36028797018963969 30 ff7fffffffffffff -9223372036854775808 26 8000000000000000}
+do_test boundary4-3.6 {
+  db eval {
+    SELECT rowid, a, x FROM t1 ORDER BY rowid DESC
+  }
+} {9223372036854775807 18 7fffffffffffffff 72057594037927936 16 0100000000000000 72057594037927935 27 00ffffffffffffff 36028797018963968 23 0080000000000000 36028797018963967 40 007fffffffffffff 281474976710656 32 0001000000000000 281474976710655 19 0000ffffffffffff 140737488355328 34 0000800000000000 140737488355327 38 00007fffffffffff 1099511627776 8 0000010000000000 1099511627775 20 000000ffffffffff 549755813888 35 0000008000000000 549755813887 1 0000007fffffffff 4294967296 11 0000000100000000 4294967295 37 00000000ffffffff 2147483648 36 0000000080000000 2147483647 46 000000007fffffff 16777216 15 0000000001000000 16777215 9 0000000000ffffff 8388608 5 0000000000800000 8388607 7 00000000007fffff 65536 33 0000000000010000 65535 6 000000000000ffff 32768 22 0000000000008000 32767 10 0000000000007fff 256 14 0000000000000100 255 29 00000000000000ff 128 41 0000000000000080 127 25 000000000000007f 0 3 0000000000000000 -1 17 ffffffffffffffff -128 45 ffffffffffffff80 -129 4 ffffffffffffff7f -32768 42 ffffffffffff8000 -32769 24 ffffffffffff7fff -8388608 2 ffffffffff800000 -8388609 21 ffffffffff7fffff -2147483648 31 ffffffff80000000 -2147483649 39 ffffffff7fffffff -549755813888 12 ffffff8000000000 -549755813889 28 ffffff7fffffffff -140737488355328 13 ffff800000000000 -140737488355329 44 ffff7fffffffffff -36028797018963968 43 ff80000000000000 -36028797018963969 30 ff7fffffffffffff -9223372036854775808 26 8000000000000000}
+do_test boundary4-3.7 {
+  db eval {
+    SELECT rowid, a, x FROM t1 ORDER BY +a
+  }
+} {549755813887 1 0000007fffffffff -8388608 2 ffffffffff800000 0 3 0000000000000000 -129 4 ffffffffffffff7f 8388608 5 0000000000800000 65535 6 000000000000ffff 8388607 7 00000000007fffff 1099511627776 8 0000010000000000 16777215 9 0000000000ffffff 32767 10 0000000000007fff 4294967296 11 0000000100000000 -549755813888 12 ffffff8000000000 -140737488355328 13 ffff800000000000 256 14 0000000000000100 16777216 15 0000000001000000 72057594037927936 16 0100000000000000 -1 17 ffffffffffffffff 9223372036854775807 18 7fffffffffffffff 281474976710655 19 0000ffffffffffff 1099511627775 20 000000ffffffffff -8388609 21 ffffffffff7fffff 32768 22 0000000000008000 36028797018963968 23 0080000000000000 -32769 24 ffffffffffff7fff 127 25 000000000000007f -9223372036854775808 26 8000000000000000 72057594037927935 27 00ffffffffffffff -549755813889 28 ffffff7fffffffff 255 29 00000000000000ff -36028797018963969 30 ff7fffffffffffff -2147483648 31 ffffffff80000000 281474976710656 32 0001000000000000 65536 33 0000000000010000 140737488355328 34 0000800000000000 549755813888 35 0000008000000000 2147483648 36 0000000080000000 4294967295 37 00000000ffffffff 140737488355327 38 00007fffffffffff -2147483649 39 ffffffff7fffffff 36028797018963967 40 007fffffffffffff 128 41 0000000000000080 -32768 42 ffffffffffff8000 -36028797018963968 43 ff80000000000000 -140737488355329 44 ffff7fffffffffff -128 45 ffffffffffffff80 2147483647 46 000000007fffffff}
+do_test boundary4-3.8 {
+  db eval {
+    SELECT rowid, a, x FROM t1 ORDER BY a
+  }
+} {549755813887 1 0000007fffffffff -8388608 2 ffffffffff800000 0 3 0000000000000000 -129 4 ffffffffffffff7f 8388608 5 0000000000800000 65535 6 000000000000ffff 8388607 7 00000000007fffff 1099511627776 8 0000010000000000 16777215 9 0000000000ffffff 32767 10 0000000000007fff 4294967296 11 0000000100000000 -549755813888 12 ffffff8000000000 -140737488355328 13 ffff800000000000 256 14 0000000000000100 16777216 15 0000000001000000 72057594037927936 16 0100000000000000 -1 17 ffffffffffffffff 9223372036854775807 18 7fffffffffffffff 281474976710655 19 0000ffffffffffff 1099511627775 20 000000ffffffffff -8388609 21 ffffffffff7fffff 32768 22 0000000000008000 36028797018963968 23 0080000000000000 -32769 24 ffffffffffff7fff 127 25 000000000000007f -9223372036854775808 26 8000000000000000 72057594037927935 27 00ffffffffffffff -549755813889 28 ffffff7fffffffff 255 29 00000000000000ff -36028797018963969 30 ff7fffffffffffff -2147483648 31 ffffffff80000000 281474976710656 32 0001000000000000 65536 33 0000000000010000 140737488355328 34 0000800000000000 549755813888 35 0000008000000000 2147483648 36 0000000080000000 4294967295 37 00000000ffffffff 140737488355327 38 00007fffffffffff -2147483649 39 ffffffff7fffffff 36028797018963967 40 007fffffffffffff 128 41 0000000000000080 -32768 42 ffffffffffff8000 -36028797018963968 43 ff80000000000000 -140737488355329 44 ffff7fffffffffff -128 45 ffffffffffffff80 2147483647 46 000000007fffffff}
+do_test boundary4-3.9 {
+  db eval {
+    SELECT rowid, a, x FROM t1 ORDER BY +a DESC
+  }
+} {2147483647 46 000000007fffffff -128 45 ffffffffffffff80 -140737488355329 44 ffff7fffffffffff -36028797018963968 43 ff80000000000000 -32768 42 ffffffffffff8000 128 41 0000000000000080 36028797018963967 40 007fffffffffffff -2147483649 39 ffffffff7fffffff 140737488355327 38 00007fffffffffff 4294967295 37 00000000ffffffff 2147483648 36 0000000080000000 549755813888 35 0000008000000000 140737488355328 34 0000800000000000 65536 33 0000000000010000 281474976710656 32 0001000000000000 -2147483648 31 ffffffff80000000 -36028797018963969 30 ff7fffffffffffff 255 29 00000000000000ff -549755813889 28 ffffff7fffffffff 72057594037927935 27 00ffffffffffffff -9223372036854775808 26 8000000000000000 127 25 000000000000007f -32769 24 ffffffffffff7fff 36028797018963968 23 0080000000000000 32768 22 0000000000008000 -8388609 21 ffffffffff7fffff 1099511627775 20 000000ffffffffff 281474976710655 19 0000ffffffffffff 9223372036854775807 18 7fffffffffffffff -1 17 ffffffffffffffff 72057594037927936 16 0100000000000000 16777216 15 0000000001000000 256 14 0000000000000100 -140737488355328 13 ffff800000000000 -549755813888 12 ffffff8000000000 4294967296 11 0000000100000000 32767 10 0000000000007fff 16777215 9 0000000000ffffff 1099511627776 8 0000010000000000 8388607 7 00000000007fffff 65535 6 000000000000ffff 8388608 5 0000000000800000 -129 4 ffffffffffffff7f 0 3 0000000000000000 -8388608 2 ffffffffff800000 549755813887 1 0000007fffffffff}
+do_test boundary4-3.10 {
+  db eval {
+    SELECT rowid, a, x FROM t1 ORDER BY a DESC
+  }
+} {2147483647 46 000000007fffffff -128 45 ffffffffffffff80 -140737488355329 44 ffff7fffffffffff -36028797018963968 43 ff80000000000000 -32768 42 ffffffffffff8000 128 41 0000000000000080 36028797018963967 40 007fffffffffffff -2147483649 39 ffffffff7fffffff 140737488355327 38 00007fffffffffff 4294967295 37 00000000ffffffff 2147483648 36 0000000080000000 549755813888 35 0000008000000000 140737488355328 34 0000800000000000 65536 33 0000000000010000 281474976710656 32 0001000000000000 -2147483648 31 ffffffff80000000 -36028797018963969 30 ff7fffffffffffff 255 29 00000000000000ff -549755813889 28 ffffff7fffffffff 72057594037927935 27 00ffffffffffffff -9223372036854775808 26 8000000000000000 127 25 000000000000007f -32769 24 ffffffffffff7fff 36028797018963968 23 0080000000000000 32768 22 0000000000008000 -8388609 21 ffffffffff7fffff 1099511627775 20 000000ffffffffff 281474976710655 19 0000ffffffffffff 9223372036854775807 18 7fffffffffffffff -1 17 ffffffffffffffff 72057594037927936 16 0100000000000000 16777216 15 0000000001000000 256 14 0000000000000100 -140737488355328 13 ffff800000000000 -549755813888 12 ffffff8000000000 4294967296 11 0000000100000000 32767 10 0000000000007fff 16777215 9 0000000000ffffff 1099511627776 8 0000010000000000 8388607 7 00000000007fffff 65535 6 000000000000ffff 8388608 5 0000000000800000 -129 4 ffffffffffffff7f 0 3 0000000000000000 -8388608 2 ffffffffff800000 549755813887 1 0000007fffffffff}
+do_test boundary4-3.11 {
+  db eval {
+    SELECT rowid, a, x FROM t1 ORDER BY +x
+  }
+} {0 3 0000000000000000 127 25 000000000000007f 128 41 0000000000000080 255 29 00000000000000ff 256 14 0000000000000100 32767 10 0000000000007fff 32768 22 0000000000008000 65535 6 000000000000ffff 65536 33 0000000000010000 8388607 7 00000000007fffff 8388608 5 0000000000800000 16777215 9 0000000000ffffff 16777216 15 0000000001000000 2147483647 46 000000007fffffff 2147483648 36 0000000080000000 4294967295 37 00000000ffffffff 4294967296 11 0000000100000000 549755813887 1 0000007fffffffff 549755813888 35 0000008000000000 1099511627775 20 000000ffffffffff 1099511627776 8 0000010000000000 140737488355327 38 00007fffffffffff 140737488355328 34 0000800000000000 281474976710655 19 0000ffffffffffff 281474976710656 32 0001000000000000 36028797018963967 40 007fffffffffffff 36028797018963968 23 0080000000000000 72057594037927935 27 00ffffffffffffff 72057594037927936 16 0100000000000000 9223372036854775807 18 7fffffffffffffff -9223372036854775808 26 8000000000000000 -36028797018963969 30 ff7fffffffffffff -36028797018963968 43 ff80000000000000 -140737488355329 44 ffff7fffffffffff -140737488355328 13 ffff800000000000 -549755813889 28 ffffff7fffffffff -549755813888 12 ffffff8000000000 -2147483649 39 ffffffff7fffffff -2147483648 31 ffffffff80000000 -8388609 21 ffffffffff7fffff -8388608 2 ffffffffff800000 -32769 24 ffffffffffff7fff -32768 42 ffffffffffff8000 -129 4 ffffffffffffff7f -128 45 ffffffffffffff80 -1 17 ffffffffffffffff}
+do_test boundary4-3.12 {
+  db eval {
+    SELECT rowid, a, x FROM t1 ORDER BY x
+  }
+} {0 3 0000000000000000 127 25 000000000000007f 128 41 0000000000000080 255 29 00000000000000ff 256 14 0000000000000100 32767 10 0000000000007fff 32768 22 0000000000008000 65535 6 000000000000ffff 65536 33 0000000000010000 8388607 7 00000000007fffff 8388608 5 0000000000800000 16777215 9 0000000000ffffff 16777216 15 0000000001000000 2147483647 46 000000007fffffff 2147483648 36 0000000080000000 4294967295 37 00000000ffffffff 4294967296 11 0000000100000000 549755813887 1 0000007fffffffff 549755813888 35 0000008000000000 1099511627775 20 000000ffffffffff 1099511627776 8 0000010000000000 140737488355327 38 00007fffffffffff 140737488355328 34 0000800000000000 281474976710655 19 0000ffffffffffff 281474976710656 32 0001000000000000 36028797018963967 40 007fffffffffffff 36028797018963968 23 0080000000000000 72057594037927935 27 00ffffffffffffff 72057594037927936 16 0100000000000000 9223372036854775807 18 7fffffffffffffff -9223372036854775808 26 8000000000000000 -36028797018963969 30 ff7fffffffffffff -36028797018963968 43 ff80000000000000 -140737488355329 44 ffff7fffffffffff -140737488355328 13 ffff800000000000 -549755813889 28 ffffff7fffffffff -549755813888 12 ffffff8000000000 -2147483649 39 ffffffff7fffffff -2147483648 31 ffffffff80000000 -8388609 21 ffffffffff7fffff -8388608 2 ffffffffff800000 -32769 24 ffffffffffff7fff -32768 42 ffffffffffff8000 -129 4 ffffffffffffff7f -128 45 ffffffffffffff80 -1 17 ffffffffffffffff}
+do_test boundary4-3.13 {
+  db eval {
+    SELECT rowid, a, x FROM t1 ORDER BY +x DESC
+  }
+} {-1 17 ffffffffffffffff -128 45 ffffffffffffff80 -129 4 ffffffffffffff7f -32768 42 ffffffffffff8000 -32769 24 ffffffffffff7fff -8388608 2 ffffffffff800000 -8388609 21 ffffffffff7fffff -2147483648 31 ffffffff80000000 -2147483649 39 ffffffff7fffffff -549755813888 12 ffffff8000000000 -549755813889 28 ffffff7fffffffff -140737488355328 13 ffff800000000000 -140737488355329 44 ffff7fffffffffff -36028797018963968 43 ff80000000000000 -36028797018963969 30 ff7fffffffffffff -9223372036854775808 26 8000000000000000 9223372036854775807 18 7fffffffffffffff 72057594037927936 16 0100000000000000 72057594037927935 27 00ffffffffffffff 36028797018963968 23 0080000000000000 36028797018963967 40 007fffffffffffff 281474976710656 32 0001000000000000 281474976710655 19 0000ffffffffffff 140737488355328 34 0000800000000000 140737488355327 38 00007fffffffffff 1099511627776 8 0000010000000000 1099511627775 20 000000ffffffffff 549755813888 35 0000008000000000 549755813887 1 0000007fffffffff 4294967296 11 0000000100000000 4294967295 37 00000000ffffffff 2147483648 36 0000000080000000 2147483647 46 000000007fffffff 16777216 15 0000000001000000 16777215 9 0000000000ffffff 8388608 5 0000000000800000 8388607 7 00000000007fffff 65536 33 0000000000010000 65535 6 000000000000ffff 32768 22 0000000000008000 32767 10 0000000000007fff 256 14 0000000000000100 255 29 00000000000000ff 128 41 0000000000000080 127 25 000000000000007f 0 3 0000000000000000}
+do_test boundary4-3.14 {
+  db eval {
+    SELECT rowid, a, x FROM t1 ORDER BY x DESC
+  }
+} {-1 17 ffffffffffffffff -128 45 ffffffffffffff80 -129 4 ffffffffffffff7f -32768 42 ffffffffffff8000 -32769 24 ffffffffffff7fff -8388608 2 ffffffffff800000 -8388609 21 ffffffffff7fffff -2147483648 31 ffffffff80000000 -2147483649 39 ffffffff7fffffff -549755813888 12 ffffff8000000000 -549755813889 28 ffffff7fffffffff -140737488355328 13 ffff800000000000 -140737488355329 44 ffff7fffffffffff -36028797018963968 43 ff80000000000000 -36028797018963969 30 ff7fffffffffffff -9223372036854775808 26 8000000000000000 9223372036854775807 18 7fffffffffffffff 72057594037927936 16 0100000000000000 72057594037927935 27 00ffffffffffffff 36028797018963968 23 0080000000000000 36028797018963967 40 007fffffffffffff 281474976710656 32 0001000000000000 281474976710655 19 0000ffffffffffff 140737488355328 34 0000800000000000 140737488355327 38 00007fffffffffff 1099511627776 8 0000010000000000 1099511627775 20 000000ffffffffff 549755813888 35 0000008000000000 549755813887 1 0000007fffffffff 4294967296 11 0000000100000000 4294967295 37 00000000ffffffff 2147483648 36 0000000080000000 2147483647 46 000000007fffffff 16777216 15 0000000001000000 16777215 9 0000000000ffffff 8388608 5 0000000000800000 8388607 7 00000000007fffff 65536 33 0000000000010000 65535 6 000000000000ffff 32768 22 0000000000008000 32767 10 0000000000007fff 256 14 0000000000000100 255 29 00000000000000ff 128 41 0000000000000080 127 25 000000000000007f 0 3 0000000000000000}
+do_test boundary4-4.1 {
+  db eval {
+    UPDATE t1 SET rowid=a, a=rowid, x=z, z=x
+  }
+} {}
+do_test boundary4-4.3 {
+  db eval {
+    SELECT a, rowid, z FROM t1 ORDER BY +a
+  }
+} {-9223372036854775808 26 8000000000000000 -36028797018963969 30 ff7fffffffffffff -36028797018963968 43 ff80000000000000 -140737488355329 44 ffff7fffffffffff -140737488355328 13 ffff800000000000 -549755813889 28 ffffff7fffffffff -549755813888 12 ffffff8000000000 -2147483649 39 ffffffff7fffffff -2147483648 31 ffffffff80000000 -8388609 21 ffffffffff7fffff -8388608 2 ffffffffff800000 -32769 24 ffffffffffff7fff -32768 42 ffffffffffff8000 -129 4 ffffffffffffff7f -128 45 ffffffffffffff80 -1 17 ffffffffffffffff 0 3 0000000000000000 127 25 000000000000007f 128 41 0000000000000080 255 29 00000000000000ff 256 14 0000000000000100 32767 10 0000000000007fff 32768 22 0000000000008000 65535 6 000000000000ffff 65536 33 0000000000010000 8388607 7 00000000007fffff 8388608 5 0000000000800000 16777215 9 0000000000ffffff 16777216 15 0000000001000000 2147483647 46 000000007fffffff 2147483648 36 0000000080000000 4294967295 37 00000000ffffffff 4294967296 11 0000000100000000 549755813887 1 0000007fffffffff 549755813888 35 0000008000000000 1099511627775 20 000000ffffffffff 1099511627776 8 0000010000000000 140737488355327 38 00007fffffffffff 140737488355328 34 0000800000000000 281474976710655 19 0000ffffffffffff 281474976710656 32 0001000000000000 36028797018963967 40 007fffffffffffff 36028797018963968 23 0080000000000000 72057594037927935 27 00ffffffffffffff 72057594037927936 16 0100000000000000 9223372036854775807 18 7fffffffffffffff}
+do_test boundary4-4.4 {
+  db eval {
+    SELECT a, rowid, z FROM t1 ORDER BY a
+  }
+} {-9223372036854775808 26 8000000000000000 -36028797018963969 30 ff7fffffffffffff -36028797018963968 43 ff80000000000000 -140737488355329 44 ffff7fffffffffff -140737488355328 13 ffff800000000000 -549755813889 28 ffffff7fffffffff -549755813888 12 ffffff8000000000 -2147483649 39 ffffffff7fffffff -2147483648 31 ffffffff80000000 -8388609 21 ffffffffff7fffff -8388608 2 ffffffffff800000 -32769 24 ffffffffffff7fff -32768 42 ffffffffffff8000 -129 4 ffffffffffffff7f -128 45 ffffffffffffff80 -1 17 ffffffffffffffff 0 3 0000000000000000 127 25 000000000000007f 128 41 0000000000000080 255 29 00000000000000ff 256 14 0000000000000100 32767 10 0000000000007fff 32768 22 0000000000008000 65535 6 000000000000ffff 65536 33 0000000000010000 8388607 7 00000000007fffff 8388608 5 0000000000800000 16777215 9 0000000000ffffff 16777216 15 0000000001000000 2147483647 46 000000007fffffff 2147483648 36 0000000080000000 4294967295 37 00000000ffffffff 4294967296 11 0000000100000000 549755813887 1 0000007fffffffff 549755813888 35 0000008000000000 1099511627775 20 000000ffffffffff 1099511627776 8 0000010000000000 140737488355327 38 00007fffffffffff 140737488355328 34 0000800000000000 281474976710655 19 0000ffffffffffff 281474976710656 32 0001000000000000 36028797018963967 40 007fffffffffffff 36028797018963968 23 0080000000000000 72057594037927935 27 00ffffffffffffff 72057594037927936 16 0100000000000000 9223372036854775807 18 7fffffffffffffff}
+do_test boundary4-4.5 {
+  db eval {
+    SELECT a, rowid, z FROM t1 ORDER BY +a DESC
+  }
+} {9223372036854775807 18 7fffffffffffffff 72057594037927936 16 0100000000000000 72057594037927935 27 00ffffffffffffff 36028797018963968 23 0080000000000000 36028797018963967 40 007fffffffffffff 281474976710656 32 0001000000000000 281474976710655 19 0000ffffffffffff 140737488355328 34 0000800000000000 140737488355327 38 00007fffffffffff 1099511627776 8 0000010000000000 1099511627775 20 000000ffffffffff 549755813888 35 0000008000000000 549755813887 1 0000007fffffffff 4294967296 11 0000000100000000 4294967295 37 00000000ffffffff 2147483648 36 0000000080000000 2147483647 46 000000007fffffff 16777216 15 0000000001000000 16777215 9 0000000000ffffff 8388608 5 0000000000800000 8388607 7 00000000007fffff 65536 33 0000000000010000 65535 6 000000000000ffff 32768 22 0000000000008000 32767 10 0000000000007fff 256 14 0000000000000100 255 29 00000000000000ff 128 41 0000000000000080 127 25 000000000000007f 0 3 0000000000000000 -1 17 ffffffffffffffff -128 45 ffffffffffffff80 -129 4 ffffffffffffff7f -32768 42 ffffffffffff8000 -32769 24 ffffffffffff7fff -8388608 2 ffffffffff800000 -8388609 21 ffffffffff7fffff -2147483648 31 ffffffff80000000 -2147483649 39 ffffffff7fffffff -549755813888 12 ffffff8000000000 -549755813889 28 ffffff7fffffffff -140737488355328 13 ffff800000000000 -140737488355329 44 ffff7fffffffffff -36028797018963968 43 ff80000000000000 -36028797018963969 30 ff7fffffffffffff -9223372036854775808 26 8000000000000000}
+do_test boundary4-4.6 {
+  db eval {
+    SELECT a, rowid, z FROM t1 ORDER BY a DESC
+  }
+} {9223372036854775807 18 7fffffffffffffff 72057594037927936 16 0100000000000000 72057594037927935 27 00ffffffffffffff 36028797018963968 23 0080000000000000 36028797018963967 40 007fffffffffffff 281474976710656 32 0001000000000000 281474976710655 19 0000ffffffffffff 140737488355328 34 0000800000000000 140737488355327 38 00007fffffffffff 1099511627776 8 0000010000000000 1099511627775 20 000000ffffffffff 549755813888 35 0000008000000000 549755813887 1 0000007fffffffff 4294967296 11 0000000100000000 4294967295 37 00000000ffffffff 2147483648 36 0000000080000000 2147483647 46 000000007fffffff 16777216 15 0000000001000000 16777215 9 0000000000ffffff 8388608 5 0000000000800000 8388607 7 00000000007fffff 65536 33 0000000000010000 65535 6 000000000000ffff 32768 22 0000000000008000 32767 10 0000000000007fff 256 14 0000000000000100 255 29 00000000000000ff 128 41 0000000000000080 127 25 000000000000007f 0 3 0000000000000000 -1 17 ffffffffffffffff -128 45 ffffffffffffff80 -129 4 ffffffffffffff7f -32768 42 ffffffffffff8000 -32769 24 ffffffffffff7fff -8388608 2 ffffffffff800000 -8388609 21 ffffffffff7fffff -2147483648 31 ffffffff80000000 -2147483649 39 ffffffff7fffffff -549755813888 12 ffffff8000000000 -549755813889 28 ffffff7fffffffff -140737488355328 13 ffff800000000000 -140737488355329 44 ffff7fffffffffff -36028797018963968 43 ff80000000000000 -36028797018963969 30 ff7fffffffffffff -9223372036854775808 26 8000000000000000}
+do_test boundary4-4.7 {
+  db eval {
+    SELECT a, rowid, z FROM t1 ORDER BY +rowid
+  }
+} {549755813887 1 0000007fffffffff -8388608 2 ffffffffff800000 0 3 0000000000000000 -129 4 ffffffffffffff7f 8388608 5 0000000000800000 65535 6 000000000000ffff 8388607 7 00000000007fffff 1099511627776 8 0000010000000000 16777215 9 0000000000ffffff 32767 10 0000000000007fff 4294967296 11 0000000100000000 -549755813888 12 ffffff8000000000 -140737488355328 13 ffff800000000000 256 14 0000000000000100 16777216 15 0000000001000000 72057594037927936 16 0100000000000000 -1 17 ffffffffffffffff 9223372036854775807 18 7fffffffffffffff 281474976710655 19 0000ffffffffffff 1099511627775 20 000000ffffffffff -8388609 21 ffffffffff7fffff 32768 22 0000000000008000 36028797018963968 23 0080000000000000 -32769 24 ffffffffffff7fff 127 25 000000000000007f -9223372036854775808 26 8000000000000000 72057594037927935 27 00ffffffffffffff -549755813889 28 ffffff7fffffffff 255 29 00000000000000ff -36028797018963969 30 ff7fffffffffffff -2147483648 31 ffffffff80000000 281474976710656 32 0001000000000000 65536 33 0000000000010000 140737488355328 34 0000800000000000 549755813888 35 0000008000000000 2147483648 36 0000000080000000 4294967295 37 00000000ffffffff 140737488355327 38 00007fffffffffff -2147483649 39 ffffffff7fffffff 36028797018963967 40 007fffffffffffff 128 41 0000000000000080 -32768 42 ffffffffffff8000 -36028797018963968 43 ff80000000000000 -140737488355329 44 ffff7fffffffffff -128 45 ffffffffffffff80 2147483647 46 000000007fffffff}
+do_test boundary4-4.8 {
+  db eval {
+    SELECT a, rowid, z FROM t1 ORDER BY rowid
+  }
+} {549755813887 1 0000007fffffffff -8388608 2 ffffffffff800000 0 3 0000000000000000 -129 4 ffffffffffffff7f 8388608 5 0000000000800000 65535 6 000000000000ffff 8388607 7 00000000007fffff 1099511627776 8 0000010000000000 16777215 9 0000000000ffffff 32767 10 0000000000007fff 4294967296 11 0000000100000000 -549755813888 12 ffffff8000000000 -140737488355328 13 ffff800000000000 256 14 0000000000000100 16777216 15 0000000001000000 72057594037927936 16 0100000000000000 -1 17 ffffffffffffffff 9223372036854775807 18 7fffffffffffffff 281474976710655 19 0000ffffffffffff 1099511627775 20 000000ffffffffff -8388609 21 ffffffffff7fffff 32768 22 0000000000008000 36028797018963968 23 0080000000000000 -32769 24 ffffffffffff7fff 127 25 000000000000007f -9223372036854775808 26 8000000000000000 72057594037927935 27 00ffffffffffffff -549755813889 28 ffffff7fffffffff 255 29 00000000000000ff -36028797018963969 30 ff7fffffffffffff -2147483648 31 ffffffff80000000 281474976710656 32 0001000000000000 65536 33 0000000000010000 140737488355328 34 0000800000000000 549755813888 35 0000008000000000 2147483648 36 0000000080000000 4294967295 37 00000000ffffffff 140737488355327 38 00007fffffffffff -2147483649 39 ffffffff7fffffff 36028797018963967 40 007fffffffffffff 128 41 0000000000000080 -32768 42 ffffffffffff8000 -36028797018963968 43 ff80000000000000 -140737488355329 44 ffff7fffffffffff -128 45 ffffffffffffff80 2147483647 46 000000007fffffff}
+do_test boundary4-4.9 {
+  db eval {
+    SELECT a, rowid, z FROM t1 ORDER BY +rowid DESC
+  }
+} {2147483647 46 000000007fffffff -128 45 ffffffffffffff80 -140737488355329 44 ffff7fffffffffff -36028797018963968 43 ff80000000000000 -32768 42 ffffffffffff8000 128 41 0000000000000080 36028797018963967 40 007fffffffffffff -2147483649 39 ffffffff7fffffff 140737488355327 38 00007fffffffffff 4294967295 37 00000000ffffffff 2147483648 36 0000000080000000 549755813888 35 0000008000000000 140737488355328 34 0000800000000000 65536 33 0000000000010000 281474976710656 32 0001000000000000 -2147483648 31 ffffffff80000000 -36028797018963969 30 ff7fffffffffffff 255 29 00000000000000ff -549755813889 28 ffffff7fffffffff 72057594037927935 27 00ffffffffffffff -9223372036854775808 26 8000000000000000 127 25 000000000000007f -32769 24 ffffffffffff7fff 36028797018963968 23 0080000000000000 32768 22 0000000000008000 -8388609 21 ffffffffff7fffff 1099511627775 20 000000ffffffffff 281474976710655 19 0000ffffffffffff 9223372036854775807 18 7fffffffffffffff -1 17 ffffffffffffffff 72057594037927936 16 0100000000000000 16777216 15 0000000001000000 256 14 0000000000000100 -140737488355328 13 ffff800000000000 -549755813888 12 ffffff8000000000 4294967296 11 0000000100000000 32767 10 0000000000007fff 16777215 9 0000000000ffffff 1099511627776 8 0000010000000000 8388607 7 00000000007fffff 65535 6 000000000000ffff 8388608 5 0000000000800000 -129 4 ffffffffffffff7f 0 3 0000000000000000 -8388608 2 ffffffffff800000 549755813887 1 0000007fffffffff}
+do_test boundary4-4.10 {
+  db eval {
+    SELECT a, rowid, z FROM t1 ORDER BY rowid DESC
+  }
+} {2147483647 46 000000007fffffff -128 45 ffffffffffffff80 -140737488355329 44 ffff7fffffffffff -36028797018963968 43 ff80000000000000 -32768 42 ffffffffffff8000 128 41 0000000000000080 36028797018963967 40 007fffffffffffff -2147483649 39 ffffffff7fffffff 140737488355327 38 00007fffffffffff 4294967295 37 00000000ffffffff 2147483648 36 0000000080000000 549755813888 35 0000008000000000 140737488355328 34 0000800000000000 65536 33 0000000000010000 281474976710656 32 0001000000000000 -2147483648 31 ffffffff80000000 -36028797018963969 30 ff7fffffffffffff 255 29 00000000000000ff -549755813889 28 ffffff7fffffffff 72057594037927935 27 00ffffffffffffff -9223372036854775808 26 8000000000000000 127 25 000000000000007f -32769 24 ffffffffffff7fff 36028797018963968 23 0080000000000000 32768 22 0000000000008000 -8388609 21 ffffffffff7fffff 1099511627775 20 000000ffffffffff 281474976710655 19 0000ffffffffffff 9223372036854775807 18 7fffffffffffffff -1 17 ffffffffffffffff 72057594037927936 16 0100000000000000 16777216 15 0000000001000000 256 14 0000000000000100 -140737488355328 13 ffff800000000000 -549755813888 12 ffffff8000000000 4294967296 11 0000000100000000 32767 10 0000000000007fff 16777215 9 0000000000ffffff 1099511627776 8 0000010000000000 8388607 7 00000000007fffff 65535 6 000000000000ffff 8388608 5 0000000000800000 -129 4 ffffffffffffff7f 0 3 0000000000000000 -8388608 2 ffffffffff800000 549755813887 1 0000007fffffffff}
+do_test boundary4-4.11 {
+  db eval {
+    SELECT a, rowid, z FROM t1 ORDER BY +z
+  }
+} {0 3 0000000000000000 127 25 000000000000007f 128 41 0000000000000080 255 29 00000000000000ff 256 14 0000000000000100 32767 10 0000000000007fff 32768 22 0000000000008000 65535 6 000000000000ffff 65536 33 0000000000010000 8388607 7 00000000007fffff 8388608 5 0000000000800000 16777215 9 0000000000ffffff 16777216 15 0000000001000000 2147483647 46 000000007fffffff 2147483648 36 0000000080000000 4294967295 37 00000000ffffffff 4294967296 11 0000000100000000 549755813887 1 0000007fffffffff 549755813888 35 0000008000000000 1099511627775 20 000000ffffffffff 1099511627776 8 0000010000000000 140737488355327 38 00007fffffffffff 140737488355328 34 0000800000000000 281474976710655 19 0000ffffffffffff 281474976710656 32 0001000000000000 36028797018963967 40 007fffffffffffff 36028797018963968 23 0080000000000000 72057594037927935 27 00ffffffffffffff 72057594037927936 16 0100000000000000 9223372036854775807 18 7fffffffffffffff -9223372036854775808 26 8000000000000000 -36028797018963969 30 ff7fffffffffffff -36028797018963968 43 ff80000000000000 -140737488355329 44 ffff7fffffffffff -140737488355328 13 ffff800000000000 -549755813889 28 ffffff7fffffffff -549755813888 12 ffffff8000000000 -2147483649 39 ffffffff7fffffff -2147483648 31 ffffffff80000000 -8388609 21 ffffffffff7fffff -8388608 2 ffffffffff800000 -32769 24 ffffffffffff7fff -32768 42 ffffffffffff8000 -129 4 ffffffffffffff7f -128 45 ffffffffffffff80 -1 17 ffffffffffffffff}
+do_test boundary4-4.12 {
+  db eval {
+    SELECT a, rowid, z FROM t1 ORDER BY z
+  }
+} {0 3 0000000000000000 127 25 000000000000007f 128 41 0000000000000080 255 29 00000000000000ff 256 14 0000000000000100 32767 10 0000000000007fff 32768 22 0000000000008000 65535 6 000000000000ffff 65536 33 0000000000010000 8388607 7 00000000007fffff 8388608 5 0000000000800000 16777215 9 0000000000ffffff 16777216 15 0000000001000000 2147483647 46 000000007fffffff 2147483648 36 0000000080000000 4294967295 37 00000000ffffffff 4294967296 11 0000000100000000 549755813887 1 0000007fffffffff 549755813888 35 0000008000000000 1099511627775 20 000000ffffffffff 1099511627776 8 0000010000000000 140737488355327 38 00007fffffffffff 140737488355328 34 0000800000000000 281474976710655 19 0000ffffffffffff 281474976710656 32 0001000000000000 36028797018963967 40 007fffffffffffff 36028797018963968 23 0080000000000000 72057594037927935 27 00ffffffffffffff 72057594037927936 16 0100000000000000 9223372036854775807 18 7fffffffffffffff -9223372036854775808 26 8000000000000000 -36028797018963969 30 ff7fffffffffffff -36028797018963968 43 ff80000000000000 -140737488355329 44 ffff7fffffffffff -140737488355328 13 ffff800000000000 -549755813889 28 ffffff7fffffffff -549755813888 12 ffffff8000000000 -2147483649 39 ffffffff7fffffff -2147483648 31 ffffffff80000000 -8388609 21 ffffffffff7fffff -8388608 2 ffffffffff800000 -32769 24 ffffffffffff7fff -32768 42 ffffffffffff8000 -129 4 ffffffffffffff7f -128 45 ffffffffffffff80 -1 17 ffffffffffffffff}
+do_test boundary4-4.13 {
+  db eval {
+    SELECT a, rowid, z FROM t1 ORDER BY +z DESC
+  }
+} {-1 17 ffffffffffffffff -128 45 ffffffffffffff80 -129 4 ffffffffffffff7f -32768 42 ffffffffffff8000 -32769 24 ffffffffffff7fff -8388608 2 ffffffffff800000 -8388609 21 ffffffffff7fffff -2147483648 31 ffffffff80000000 -2147483649 39 ffffffff7fffffff -549755813888 12 ffffff8000000000 -549755813889 28 ffffff7fffffffff -140737488355328 13 ffff800000000000 -140737488355329 44 ffff7fffffffffff -36028797018963968 43 ff80000000000000 -36028797018963969 30 ff7fffffffffffff -9223372036854775808 26 8000000000000000 9223372036854775807 18 7fffffffffffffff 72057594037927936 16 0100000000000000 72057594037927935 27 00ffffffffffffff 36028797018963968 23 0080000000000000 36028797018963967 40 007fffffffffffff 281474976710656 32 0001000000000000 281474976710655 19 0000ffffffffffff 140737488355328 34 0000800000000000 140737488355327 38 00007fffffffffff 1099511627776 8 0000010000000000 1099511627775 20 000000ffffffffff 549755813888 35 0000008000000000 549755813887 1 0000007fffffffff 4294967296 11 0000000100000000 4294967295 37 00000000ffffffff 2147483648 36 0000000080000000 2147483647 46 000000007fffffff 16777216 15 0000000001000000 16777215 9 0000000000ffffff 8388608 5 0000000000800000 8388607 7 00000000007fffff 65536 33 0000000000010000 65535 6 000000000000ffff 32768 22 0000000000008000 32767 10 0000000000007fff 256 14 0000000000000100 255 29 00000000000000ff 128 41 0000000000000080 127 25 000000000000007f 0 3 0000000000000000}
+do_test boundary4-4.14 {
+  db eval {
+    SELECT a, rowid, z FROM t1 ORDER BY z DESC
+  }
+} {-1 17 ffffffffffffffff -128 45 ffffffffffffff80 -129 4 ffffffffffffff7f -32768 42 ffffffffffff8000 -32769 24 ffffffffffff7fff -8388608 2 ffffffffff800000 -8388609 21 ffffffffff7fffff -2147483648 31 ffffffff80000000 -2147483649 39 ffffffff7fffffff -549755813888 12 ffffff8000000000 -549755813889 28 ffffff7fffffffff -140737488355328 13 ffff800000000000 -140737488355329 44 ffff7fffffffffff -36028797018963968 43 ff80000000000000 -36028797018963969 30 ff7fffffffffffff -9223372036854775808 26 8000000000000000 9223372036854775807 18 7fffffffffffffff 72057594037927936 16 0100000000000000 72057594037927935 27 00ffffffffffffff 36028797018963968 23 0080000000000000 36028797018963967 40 007fffffffffffff 281474976710656 32 0001000000000000 281474976710655 19 0000ffffffffffff 140737488355328 34 0000800000000000 140737488355327 38 00007fffffffffff 1099511627776 8 0000010000000000 1099511627775 20 000000ffffffffff 549755813888 35 0000008000000000 549755813887 1 0000007fffffffff 4294967296 11 0000000100000000 4294967295 37 00000000ffffffff 2147483648 36 0000000080000000 2147483647 46 000000007fffffff 16777216 15 0000000001000000 16777215 9 0000000000ffffff 8388608 5 0000000000800000 8388607 7 00000000007fffff 65536 33 0000000000010000 65535 6 000000000000ffff 32768 22 0000000000008000 32767 10 0000000000007fff 256 14 0000000000000100 255 29 00000000000000ff 128 41 0000000000000080 127 25 000000000000007f 0 3 0000000000000000}
+finish_test
diff --git a/test/btree01.test b/test/btree01.test
new file mode 100644
index 0000000000000000000000000000000000000000..6e4717ae65853f9d951a523a9d1511480b574826
--- /dev/null
+++ b/test/btree01.test
@@ -0,0 +1,156 @@
+# 2014-11-27
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains test cases for b-tree logic.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix btree01
+
+# The refactoring on the b-tree balance() routine in check-in
+# http://www.sqlite.org/src/info/face33bea1ba3a (2014-10-27)
+# caused the integrity_check on the following SQL to fail.
+#
+do_execsql_test btree01-1.1 {
+  PRAGMA page_size=65536;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b BLOB);
+  WITH RECURSIVE
+     c(i) AS (VALUES(1) UNION ALL SELECT i+1 FROM c WHERE i<30)
+  INSERT INTO t1(a,b) SELECT i, zeroblob(6500) FROM c;
+  UPDATE t1 SET b=zeroblob(3000);
+  UPDATE t1 SET b=zeroblob(64000) WHERE a=2;
+  PRAGMA integrity_check;
+} {ok}
+
+# The previous test is sufficient to prevent a regression.  But we
+# add a number of additional tests to stress the balancer in similar
+# ways, looking for related problems.
+#
+for {set i 1} {$i<=30} {incr i} {
+  do_test btree01-1.2.$i {
+    db eval {
+      DELETE FROM t1;
+      WITH RECURSIVE
+        c(i) AS (VALUES(1) UNION ALL SELECT i+1 FROM c WHERE i<30)
+      INSERT INTO t1(a,b) SELECT i, zeroblob(6500) FROM c;
+      UPDATE t1 SET b=zeroblob(3000);
+      UPDATE t1 SET b=zeroblob(64000) WHERE a=$::i;
+      PRAGMA integrity_check;
+    }
+  } {ok}
+}
+for {set i 1} {$i<=30} {incr i} {
+  do_test btree01-1.3.$i {
+    db eval {
+      DELETE FROM t1;
+      WITH RECURSIVE
+        c(i) AS (VALUES(1) UNION ALL SELECT i+1 FROM c WHERE i<30)
+      INSERT INTO t1(a,b) SELECT i, zeroblob(6500) FROM c;
+      UPDATE t1 SET b=zeroblob(2000);
+      UPDATE t1 SET b=zeroblob(64000) WHERE a=$::i;
+      PRAGMA integrity_check;
+    }
+  } {ok}
+}
+for {set i 1} {$i<=30} {incr i} {
+  do_test btree01-1.4.$i {
+    db eval {
+      DELETE FROM t1;
+      WITH RECURSIVE
+        c(i) AS (VALUES(1) UNION ALL SELECT i+1 FROM c WHERE i<30)
+      INSERT INTO t1(a,b) SELECT i, zeroblob(6500) FROM c;
+      UPDATE t1 SET b=zeroblob(6499) WHERE (a%3)==0;
+      UPDATE t1 SET b=zeroblob(6499) WHERE (a%3)==1;
+      UPDATE t1 SET b=zeroblob(6499) WHERE (a%3)==2;
+      UPDATE t1 SET b=zeroblob(64000) WHERE a=$::i;
+      PRAGMA integrity_check;
+    }
+  } {ok}
+}
+for {set i 1} {$i<=30} {incr i} {
+  do_test btree01-1.5.$i {
+    db eval {
+      DELETE FROM t1;
+      WITH RECURSIVE
+        c(i) AS (VALUES(1) UNION ALL SELECT i+1 FROM c WHERE i<30)
+      INSERT INTO t1(a,b) SELECT i, zeroblob(6542) FROM c;
+      UPDATE t1 SET b=zeroblob(2331);
+      UPDATE t1 SET b=zeroblob(65496) WHERE a=$::i;
+      PRAGMA integrity_check;
+    }
+  } {ok}
+}
+for {set i 1} {$i<=30} {incr i} {
+  do_test btree01-1.6.$i {
+    db eval {
+      DELETE FROM t1;
+      WITH RECURSIVE
+        c(i) AS (VALUES(1) UNION ALL SELECT i+1 FROM c WHERE i<30)
+      INSERT INTO t1(a,b) SELECT i, zeroblob(6542) FROM c;
+      UPDATE t1 SET b=zeroblob(2332);
+      UPDATE t1 SET b=zeroblob(65496) WHERE a=$::i;
+      PRAGMA integrity_check;
+    }
+  } {ok}
+}
+for {set i 1} {$i<=30} {incr i} {
+  do_test btree01-1.7.$i {
+    db eval {
+      DELETE FROM t1;
+      WITH RECURSIVE
+        c(i) AS (VALUES(1) UNION ALL SELECT i+1 FROM c WHERE i<30)
+      INSERT INTO t1(a,b) SELECT i, zeroblob(6500) FROM c;
+      UPDATE t1 SET b=zeroblob(1);
+      UPDATE t1 SET b=zeroblob(65000) WHERE a=$::i;
+      PRAGMA integrity_check;
+    }
+  } {ok}
+}
+for {set i 1} {$i<=31} {incr i} {
+  do_test btree01-1.8.$i {
+    db eval {
+      DELETE FROM t1;
+      WITH RECURSIVE
+        c(i) AS (VALUES(1) UNION ALL SELECT i+1 FROM c WHERE i<31)
+      INSERT INTO t1(a,b) SELECT i, zeroblob(6500) FROM c;
+      UPDATE t1 SET b=zeroblob(4000);
+      UPDATE t1 SET b=zeroblob(65000) WHERE a=$::i;
+      PRAGMA integrity_check;
+    }
+  } {ok}
+}
+
+# 2022-03-06 OSSFuzz issue 45329
+# An assertion fault due to the failure to clear a flag in an optimization
+# committed last night.
+#
+# When the stay-on-last page optimization of sqlite3BtreeIndexMoveto() is
+# invoked, it needs to clear the BTCF_ValidOvfl flag.
+#
+db close
+sqlite3 db :memory:
+do_execsql_test btree01-2.1 {
+  PRAGMA page_size=1024;
+  CREATE TABLE t1(a INT PRIMARY KEY, b BLOB, c INT) WITHOUT ROWID;
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<100)
+    INSERT INTO t1(a,b,c) SELECT x*2, zeroblob(100), x FROM c;
+  UPDATE t1 SET b=zeroblob(1000) WHERE a=198;
+  CREATE TABLE t2(x INTEGER PRIMARY KEY, y INT);
+  INSERT INTO t2(y) VALUES(198),(187),(100);
+  SELECT y, c FROM t2 LEFT JOIN t1 ON y=a ORDER BY x;
+} {198 99 187 {} 100 50}
+do_execsql_test btree01-2.2 {
+  SELECT y, c FROM t1 RIGHT JOIN t2 ON y=a ORDER BY x;
+} {198 99 187 {} 100 50}
+
+
+finish_test
diff --git a/test/btree02.test b/test/btree02.test
new file mode 100644
index 0000000000000000000000000000000000000000..c1fede580148a9c780db6dca31bf549d0cdb4d7d
--- /dev/null
+++ b/test/btree02.test
@@ -0,0 +1,62 @@
+# 2015-03-25
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# The focus of this script is making multiple calls to saveCursorPosition()
+# and restoreCursorPosition() when cursors have eState==CURSOR_SKIPNEXT
+# 
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+load_static_extension db eval
+do_execsql_test btree02-100 {
+  CREATE TABLE t1(a TEXT, ax INTEGER, b INT, PRIMARY KEY(a,ax)) WITHOUT ROWID;
+  WITH RECURSIVE c(i) AS (VALUES(1) UNION ALL SELECT i+1 FROM c WHERE i<10)
+    INSERT INTO t1(a,ax,b) SELECT printf('%02x',i+160), random(), i FROM c;
+  CREATE INDEX t1a ON t1(a);
+  CREATE TABLE t2(x,y);
+  CREATE TABLE t3(cnt);
+  WITH RECURSIVE c(i) AS (VALUES(1) UNION ALL SELECT i+1 FROM c WHERE i<4)
+    INSERT INTO t3(cnt) SELECT i FROM c;
+  SELECT count(*) FROM t1;
+} {10}
+
+proc showt1 {} {
+  puts -nonewline "t1: "
+  puts [db eval {SELECT printf('(%s,%s)',quote(a),quote(b)) FROM t1}]
+}
+
+do_test btree02-110 {
+  db eval BEGIN
+  set i 0
+  # showt1
+  db eval {SELECT a, ax, b, cnt FROM t1 CROSS JOIN t3 WHERE b IS NOT NULL} {
+    if {$a==""} continue
+    db eval {INSERT INTO t2(x,y) VALUES($b,$cnt)}
+    # puts "a,b,cnt = ($a,$b,$cnt)"
+    incr i
+    if {$i%2==1} {
+      set bx [expr {$b+1000}]
+      #  puts "INSERT ($a),$bx"
+      db eval {INSERT INTO t1(a,ax,b) VALUES(printf('(%s)',$a),random(),$bx)}
+      # showt1
+    } else {
+      # puts "DELETE a=$a"
+      db eval {DELETE FROM t1 WHERE a=$a}
+      # showt1
+    }
+    db eval {COMMIT; BEGIN}
+  }  
+  db one {COMMIT; SELECT count(*) FROM t1;}
+} {10}
+
+finish_test
diff --git a/test/btreefault.test b/test/btreefault.test
new file mode 100644
index 0000000000000000000000000000000000000000..d0ba05961c119c37462991acdf4302ba45cc51ce
--- /dev/null
+++ b/test/btreefault.test
@@ -0,0 +1,106 @@
+# 2013 April 02
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains fault injection tests designed to test the btree.c 
+# module.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+set testprefix btreefault
+
+# This test will not work with an in-memory journal, as the database will
+# become corrupt if an error is injected into a transaction after it starts
+# writing data out to the db file.
+if {[permutation]=="inmemory_journal"} {
+  finish_test
+  return
+}
+
+do_test 1-pre1 {
+  execsql {
+    PRAGMA auto_vacuum = incremental;
+    PRAGMA journal_mode = DELETE;
+    CREATE TABLE t1(a PRIMARY KEY, b);
+    INSERT INTO t1 VALUES(randomblob(1000), randomblob(100));
+    INSERT INTO t1 SELECT randomblob(1000), randomblob(1000) FROM t1;
+    INSERT INTO t1 SELECT randomblob(1000), randomblob(1000) FROM t1;
+    INSERT INTO t1 SELECT randomblob(1000), randomblob(1000) FROM t1;
+    INSERT INTO t1 SELECT randomblob(1000), randomblob(1000) FROM t1;
+    DELETE FROM t1 WHERE rowid%2;
+  }
+  faultsim_save_and_close
+} {}
+
+do_faultsim_test 1 -prep {
+  faultsim_restore_and_reopen
+  set ::STMT [sqlite3_prepare db "SELECT * FROM t1 ORDER BY a" -1 DUMMY]
+  sqlite3_step $::STMT
+  sqlite3_step $::STMT
+} -body {
+  execsql { PRAGMA incremental_vacuum = 10 }
+} -test {
+  sqlite3_finalize $::STMT
+  faultsim_test_result {0 {}} 
+  faultsim_integrity_check
+}
+
+#-------------------------------------------------------------------------
+# dbsqlfuzz crash-6ef3cd3b18ccc5de86120950a0498641acd90a33.txt
+#
+reset_db
+
+do_execsql_test 2.0 {
+  CREATE TABLE t1(i INTEGER PRIMARY KEY, a, b);
+  CREATE INDEX i1 ON t1(b);
+  CREATE TABLE t2(x, y);
+}
+
+do_execsql_test 2.1 {
+  INSERT INTO t1 VALUES(25, 25, 25);
+  INSERT INTO t2 VALUES(25, 'a'), (25, 'b'), (25, 'c');
+}
+
+faultsim_save
+do_test 2.2 {
+  set res [list]
+  db eval {
+    SELECT x, y FROM t1 CROSS JOIN t2 WHERE t2.x=t1.i AND +t1.i=25 ORDER BY b
+  } {
+    lappend res $x $y
+    if {$y=="b"} {
+      db eval { DELETE FROM t1 WHERE i=25 }
+    }
+  }
+  set res
+} {25 a 25 b}
+
+do_faultsim_test 2 -faults oom-t* -prep {
+  faultsim_restore_and_reopen
+  db eval {SELECT * FROM sqlite_master}
+} -body {
+  set ::myres [list]
+  db eval {
+    SELECT x, y FROM t1 CROSS JOIN t2 WHERE t2.x=t1.i AND +t1.i=25 ORDER BY b
+  } {
+    lappend ::myres $x $y
+    if {$y=="b"} {
+      db eval { DELETE FROM t1 WHERE i=25 }
+    }
+  }
+  set ::myres
+} -test {
+  faultsim_test_result {0 {25 a 25 b}} 
+}
+
+
+finish_test
diff --git a/test/busy.test b/test/busy.test
new file mode 100644
index 0000000000000000000000000000000000000000..896c7fa651e44eeb0c180d1afbc47c25c744f290
--- /dev/null
+++ b/test/busy.test
@@ -0,0 +1,139 @@
+# 2005 july 8
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file test the busy handler
+#
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix busy
+
+do_test busy-1.1 {
+  sqlite3 db2 test.db
+  execsql {
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(1);
+    SELECT * FROM t1
+  }
+} 1
+proc busy x {
+  lappend ::busyargs $x
+  if {$x>2} {return 1}
+  return 0
+}
+set busyargs {}
+do_test busy-1.2 {
+  db busy busy
+  db2 eval {BEGIN EXCLUSIVE}
+  catchsql {BEGIN IMMEDIATE}
+} {1 {database is locked}}
+do_test busy-1.3 {
+  set busyargs
+} {0 1 2 3}
+do_test busy-1.4 {
+  set busyargs {}
+  catchsql {BEGIN IMMEDIATE}
+  set busyargs
+} {0 1 2 3}
+
+do_test busy-2.1 {
+  db2 eval {COMMIT}
+  db eval {BEGIN; INSERT INTO t1 VALUES(5)}
+  db2 eval {BEGIN; SELECT * FROM t1}
+  set busyargs {}
+  catchsql COMMIT
+} {1 {database is locked}}
+do_test busy-2.2 {
+  set busyargs
+} {0 1 2 3}
+
+db2 close
+
+#-------------------------------------------------------------------------
+# Test that the busy-handler is invoked correctly for "PRAGMA optimize"
+# and ANALYZE commnds.
+ifcapable pragma&&analyze&&!stat4 {
+
+reset_db
+
+do_execsql_test 3.1 {
+  CREATE TABLE t1(x);
+  CREATE TABLE t2(y);
+  CREATE TABLE t3(z);
+
+  CREATE INDEX i1 ON t1(x);
+  CREATE INDEX i2 ON t2(y);
+
+  INSERT INTO t1 VALUES(1);
+  INSERT INTO t2 VALUES(1);
+  ANALYZE;
+
+  SELECT * FROM t1 WHERE x=1;
+  SELECT * FROM t2 WHERE y=1;
+} {1 1}
+
+do_test 3.2 {
+  sqlite3 db2 test.db
+  execsql { BEGIN EXCLUSIVE } db2
+  catchsql { PRAGMA optimize }
+} {1 {database is locked}}
+
+proc busy_handler {n} {
+  if {$n>1000} { execsql { COMMIT } db2 }
+  return 0
+}
+db busy busy_handler
+
+do_test 3.3 {
+  catchsql { PRAGMA optimize }
+} {0 {}}
+
+do_test 3.4 {
+  execsql {
+    BEGIN;
+    SELECT count(*) FROM sqlite_master;
+  } db2
+} {6}
+
+proc busy_handler {n} { return 1 }
+do_test 3.5 {
+  catchsql { PRAGMA optimize }
+} {1 {database is locked}}
+
+do_test 3.6 {
+  execsql { COMMIT } db2
+  execsql {
+    WITH s(i) AS (
+      SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<1000
+    )
+    INSERT INTO t1 SELECT i FROM s;
+  }
+  execsql {
+    BEGIN;
+    SELECT count(*) FROM sqlite_master;
+  } db2
+} {6}
+
+do_test 3.7 {
+  catchsql { PRAGMA optimize }
+} {1 {database is locked}}
+
+proc busy_handler {n} {
+  if {$n>1000} { execsql { COMMIT } db2 }
+  return 0
+}
+do_test 3.8 {
+  catchsql { PRAGMA optimize }
+} {0 {}}
+
+}
+
+finish_test
diff --git a/test/busy2.test b/test/busy2.test
new file mode 100644
index 0000000000000000000000000000000000000000..ec420c8b2095aab038fa3416e5a2ee9e2fdaaf4d
--- /dev/null
+++ b/test/busy2.test
@@ -0,0 +1,171 @@
+# 2020 June 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file test the busy handler
+#
+# TESTRUNNER: slow
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+set testprefix busy2
+
+do_multiclient_test tn {
+  do_test 1.$tn.0 {
+    sql2 {
+      CREATE TABLE t1(a, b);
+      PRAGMA journal_mode = wal;
+      INSERT INTO t1 VALUES('A', 'B');
+    }
+  } {wal}
+
+  do_test 1.$tn.1 {
+    code1 { db timeout 1000 }
+    sql1 { SELECT * FROM t1 }
+  } {A B}
+
+  do_test 1.$tn.2 {
+    sql2 {
+      BEGIN;
+        INSERT INTO t1 VALUES('C', 'D');
+    }
+  } {}
+
+  do_test 1.$tn.3 {
+    set us [lindex [time { catch { sql1 { BEGIN EXCLUSIVE } } }] 0]
+    expr {$us>950000 && $us<1500000}
+  } {1}
+
+  do_test 1.$tn.4 {
+    sql2 {
+      COMMIT
+    }
+  } {}
+}
+
+#-------------------------------------------------------------------------
+
+do_multiclient_test tn {
+  # Make the db a WAL mode db. And add a table and a row to it. Then open
+  # a second connection within process 1. Process 1 now has connections
+  # [db] and [db1.2], process 2 has connection [db2] only.
+  #
+  # Configure all connections to use a 1000 ms timeout.
+  #
+  do_test 2.$tn.0 {
+    code1 {
+      sqlite3 db1.2 test.db
+    }
+    sql1 {
+      PRAGMA auto_vacuum = off;
+      PRAGMA journal_mode = wal;
+      CREATE TABLE t1(a, b);
+      INSERT INTO t1 VALUES(1, 2);
+    }
+    code2 {
+      db2 timeout 1000
+    }
+    code1 {
+      db1.2 timeout 1000
+      db    timeout 1000
+      db1.2 eval {SELECT * FROM t1}
+    }
+  } {1 2}
+
+  # Take a read lock with [db] in process 1.
+  #
+  do_test 2.$tn.1 {
+    sql1 {
+      BEGIN;
+        SELECT * FROM t1;
+    }
+  } {1 2}
+
+  # Insert a row using [db2] in process 2. Then try a passive checkpoint.
+  # It fails to checkpoint the final frame (due to the readlock taken by
+  # [db]), and returns in less than 250ms.
+  do_test 2.$tn.2 {
+    sql2 { INSERT INTO t1 VALUES(3, 4) }
+    set us [lindex [time {
+      set res [code2 { db2 eval { PRAGMA wal_checkpoint } }]
+    }] 0]
+    list [expr $us < 250000] $res
+  } {1 {0 4 3}}
+
+  # Now try a FULL checkpoint with [db2]. It returns SQLITE_BUSY. And takes
+  # over 950ms to do so.
+  do_test 2.$tn.3 {
+    set us [lindex [time {
+      set res [code2 { db2 eval { PRAGMA wal_checkpoint = FULL } }]
+    }] 0]
+    list [expr $us > 950000] $res
+  } {1 {1 4 3}}
+
+  # Passive checkpoint with [db1.2] (process 1). No SQLITE_BUSY, returns
+  # in under 250ms.
+  do_test 2.$tn.4 {
+    set us [lindex [time {
+      set res [code1 { db1.2 eval { PRAGMA wal_checkpoint } }]
+    }] 0]
+    list [expr $us < 250000] $res
+  } {1 {0 4 3}}
+
+  # Full checkpoint with [db1.2] (process 1). SQLITE_BUSY returned in
+  # a bit over 950ms.
+  do_test 2.$tn.5 {
+    set us [lindex [time {
+      set res [code1 { db1.2 eval { PRAGMA wal_checkpoint = FULL } }]
+    }] 0]
+    list [expr $us > 950000] $res
+  } {1 {1 4 3}}
+
+  code1 {
+    db1.2 close
+  }
+}
+
+#-------------------------------------------------------------------------
+# Check that even if the busy-handler fails (returns zero) within a
+# call to sqlite3_prepare() (or _v2(), or _v3()), it is still invoked
+# the next time an SQLITE_BUSY is encountered.
+#
+do_multiclient_test tn {
+  code1 {
+    set ::busy_called 0
+    proc busy {args} {
+      if {$::busy_called} { return 1 }
+      set ::busy_called 1
+      return 0
+    }
+    db busy busy
+  }
+
+  do_test 3.$tn.1 {
+    sql2 {
+      CREATE TABLE t1(x);
+      BEGIN EXCLUSIVE;
+        INSERT INTO t1 VALUES('x');
+    }
+  } {}
+
+  do_test 3.$tn.2 {
+    set ::busy_called 0
+    list [catch { sql1 { SELECT * FROM t1 } } msg] $::busy_called
+  } {1 1}
+
+  do_test 3.$tn.3 {
+    set ::busy_called 0
+    list [catch { sql1 { SELECT * FROM t1 } } msg] $::busy_called
+  } {1 1}
+
+}
+
+finish_test
diff --git a/test/cache.test b/test/cache.test
new file mode 100644
index 0000000000000000000000000000000000000000..ffc25c460e73be51b91c24021df5d531cc8881fe
--- /dev/null
+++ b/test/cache.test
@@ -0,0 +1,140 @@
+# 2007 March 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# $Id: cache.test,v 1.4 2007/08/22 02:56:44 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !pager_pragmas||!compound {
+  finish_test
+  return
+}
+sqlite3_soft_heap_limit 0
+
+proc pager_cache_size {db} {
+  set bt [btree_from_db $db]
+  db_enter $db
+  array set stats [btree_pager_stats $bt]
+  db_leave $db
+  return $stats(page)
+}
+
+if {[permutation] == ""} { 
+  do_test cache-1.1 { pager_cache_size db } {0}
+}
+
+do_test cache-1.2 {
+  execsql {
+    PRAGMA auto_vacuum=OFF;
+    CREATE TABLE abc(a, b, c);
+    INSERT INTO abc VALUES(1, 2, 3);
+  }
+  pager_cache_size db
+} {2}
+
+# At one point, repeatedly locking and unlocking the cache was causing
+# a resource leak of one page per repetition. The page wasn't actually
+# leaked, but would not be reused until the pager-cache was full (i.e. 
+# 2000 pages by default).
+#
+# This tests that once the pager-cache is initialized, it can be locked
+# and unlocked repeatedly without internally allocating any new pages.
+#
+set cache_size [pager_cache_size db]
+for {set ii 0} {$ii < 10} {incr ii} {
+  do_test cache-1.3.$ii {
+    execsql {SELECT * FROM abc}
+    pager_cache_size db
+  } $::cache_size
+}
+
+#-------------------------------------------------------------------------
+# This block of tests checks that it is possible to set the cache_size of a
+# database to a small (< 10) value. More specifically:
+#
+#   cache-2.1.*: Test that "PRAGMA cache_size" appears to work with small 
+#                values.
+#   cache-2.2.*: Test that "PRAGMA main.cache_size" appears to work with 
+#                small values.
+#   cache-2.3.*: Test cache_size=1 correctly spills/flushes the cache. 
+#   cache-2.4.*: Test cache_size=0 correctly spills/flushes the cache. 
+#
+#
+db_delete_and_reopen
+do_execsql_test cache-2.0 {
+  PRAGMA auto_vacuum=OFF;
+  PRAGMA journal_mode=DELETE;
+  CREATE TABLE t1(a, b);
+  CREATE TABLE t2(c, d);
+  INSERT INTO t1 VALUES('x', 'y');
+  INSERT INTO t2 VALUES('i', 'j');
+} {delete}
+
+for {set i 0} {$i < 20} {incr i} {
+  do_execsql_test cache-2.1.$i.1 "PRAGMA cache_size = $i"
+  do_execsql_test cache-2.1.$i.2 "PRAGMA cache_size" $i
+  do_execsql_test cache-2.1.$i.3 "SELECT * FROM t1" {x y}
+  do_execsql_test cache-2.1.$i.4 "PRAGMA cache_size" $i
+}
+for {set i 0} {$i < 20} {incr i} {
+  do_execsql_test cache-2.2.$i.1 "PRAGMA main.cache_size = $i"
+  do_execsql_test cache-2.2.$i.2 "PRAGMA main.cache_size" $i
+  do_execsql_test cache-2.2.$i.3 "SELECT * FROM t1" {x y}
+  do_execsql_test cache-2.2.$i.4 "PRAGMA main.cache_size" $i
+}
+
+# Tests for cache_size = 1.
+#
+do_execsql_test cache-2.3.1 {
+  PRAGMA cache_size = 1;
+  BEGIN;
+    INSERT INTO t1 VALUES(1, 2);
+    PRAGMA lock_status;
+} {main reserved temp closed}
+do_test cache-2.3.2 { pager_cache_size db } 2
+do_execsql_test cache-2.3.3 {
+    INSERT INTO t2 VALUES(1, 2);
+    PRAGMA lock_status;
+} {main exclusive temp closed}
+do_test cache-2.3.4 { pager_cache_size db } 2
+do_execsql_test cache-2.3.5 COMMIT
+do_test cache-2.3.6 { pager_cache_size db } 1
+
+do_execsql_test cache-2.3.7 {
+  SELECT * FROM t1 UNION SELECT * FROM t2;
+} {1 2 i j x y}
+do_test cache-2.3.8 { pager_cache_size db } 1
+
+# Tests for cache_size = 0.
+#
+do_execsql_test cache-2.4.1 {
+  PRAGMA cache_size = 0;
+  BEGIN;
+    INSERT INTO t1 VALUES(1, 2);
+    PRAGMA lock_status;
+} {main reserved temp closed}
+do_test cache-2.4.2 { pager_cache_size db } 2
+do_execsql_test cache-2.4.3 {
+    INSERT INTO t2 VALUES(1, 2);
+    PRAGMA lock_status;
+} {main exclusive temp closed}
+do_test cache-2.4.4 { pager_cache_size db } 2
+do_execsql_test cache-2.4.5 COMMIT
+
+do_test cache-2.4.6 { pager_cache_size db } 0
+do_execsql_test cache-2.4.7 {
+  SELECT * FROM t1 UNION SELECT * FROM t2;
+} {1 2 i j x y}
+do_test cache-2.4.8 { pager_cache_size db } 0
+
+sqlite3_soft_heap_limit $cmdlinearg(soft-heap-limit)
+finish_test
diff --git a/test/cacheflush.test b/test/cacheflush.test
new file mode 100644
index 0000000000000000000000000000000000000000..50461893ef1cebe98524e14b1dbfa6cfbc291945
--- /dev/null
+++ b/test/cacheflush.test
@@ -0,0 +1,323 @@
+# 2011 November 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains test cases for sqlite3_db_cacheflush API.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix cacheflush
+test_set_config_pagecache 0 0
+
+# Run the supplied SQL on a copy of the database currently stored on 
+# disk in file $dbfile.
+proc diskquery {dbfile sql} {
+  forcecopy $dbfile dq.db
+  sqlite3 dq dq.db
+  set res [execsql $sql dq]
+  dq close
+  set res
+}
+
+# Simplest possible test.
+#
+do_execsql_test 1.1.0 {
+  CREATE TABLE t1(a, b);
+  INSERT INTO t1 VALUES(1, 2);
+  BEGIN;
+    INSERT INTO t1 VALUES(3, 4);
+}
+do_test 1.1.1 {
+  diskquery test.db { SELECT * FROM t1 } 
+} {1 2}
+do_test 1.1.2 {
+  sqlite3_db_cacheflush db
+  diskquery test.db { SELECT * FROM t1 } 
+} {1 2 3 4}
+
+# Test that multiple pages may be flushed to disk.
+#
+do_execsql_test 1.2.0 {
+  COMMIT;
+  CREATE TABLE t2(a, b);
+  BEGIN;
+    INSERT INTO t1 VALUES(5, 6);
+    INSERT INTO t2 VALUES('a', 'b');
+}
+do_test 1.2.1 {
+  diskquery test.db { 
+    SELECT * FROM t1;
+    SELECT * FROM t2;
+  }
+} {1 2 3 4}
+do_test 1.2.2 {
+  sqlite3_db_cacheflush db
+  diskquery test.db { 
+    SELECT * FROM t1;
+    SELECT * FROM t2;
+  }
+} {1 2 3 4 5 6 a b}
+
+# Test that pages with nRef!=0 are not flushed to disk.
+#
+do_execsql_test 1.3.0 {
+  COMMIT;
+  CREATE TABLE t3(a, b);
+  BEGIN;
+    INSERT INTO t1 VALUES(7, 8);
+    INSERT INTO t2 VALUES('c', 'd');
+    INSERT INTO t3 VALUES('i', 'ii');
+}
+do_test 1.3.1 {
+  diskquery test.db { 
+    SELECT * FROM t1;
+    SELECT * FROM t2;
+    SELECT * FROM t3;
+  }
+} {1 2 3 4 5 6 a b}
+do_test 1.3.2 {
+  db eval { SELECT a FROM t1 } {
+    if {$a==3} {
+      sqlite3_db_cacheflush db
+    }
+  }
+  diskquery test.db { 
+    SELECT * FROM t1;
+    SELECT * FROM t2;
+    SELECT * FROM t3;
+  }
+} {1 2 3 4 5 6 a b c d i ii}
+do_test 1.3.2 {
+  sqlite3_db_cacheflush db
+  diskquery test.db { 
+    SELECT * FROM t1;
+    SELECT * FROM t2;
+    SELECT * FROM t3;
+  }
+} {1 2 3 4 5 6 7 8 a b c d i ii}
+
+# Check that SQLITE_BUSY is returned if pages cannot be flushed due to
+# conflicting read locks.
+#
+do_execsql_test 1.4.0 {
+  COMMIT;
+  BEGIN;
+    INSERT INTO t1 VALUES(9, 10);
+}
+do_test 1.4.1 {
+  sqlite3 db2 test.db
+  db2 eval {
+    BEGIN;
+      SELECT * FROM t1;
+  }
+  diskquery test.db { 
+    SELECT * FROM t1;
+  }
+} {1 2 3 4 5 6 7 8}
+do_test 1.4.2 {
+  list [catch { sqlite3_db_cacheflush db } msg] $msg
+} {1 {database is locked}}
+do_test 1.4.3 {
+  diskquery test.db { 
+    SELECT * FROM t1;
+  }
+} {1 2 3 4 5 6 7 8}
+do_test 1.4.4 {
+  db2 close
+  sqlite3_db_cacheflush db
+  diskquery test.db { 
+    SELECT * FROM t1;
+  }
+} {1 2 3 4 5 6 7 8 9 10}
+do_execsql_test 1.4.5 { COMMIT }
+
+#-------------------------------------------------------------------------
+# Test that ATTACHed database caches are also flushed.
+#
+forcedelete test.db2
+do_execsql_test 2.1.0 {
+  ATTACH 'test.db2' AS aux;
+  CREATE TABLE aux.t4(x, y);
+  INSERT INTO t4 VALUES('A', 'B');
+  BEGIN;
+    INSERT INTO t1 VALUES(11, 12);
+    INSERT INTO t4 VALUES('C', 'D');
+}
+do_test 2.1.1 {
+  diskquery test.db { SELECT * FROM t1; }
+} {1 2 3 4 5 6 7 8 9 10}
+do_test 2.1.2 {
+  diskquery test.db2 { SELECT * FROM t4; }
+} {A B}
+do_test 2.1.3 {
+  sqlite3_db_cacheflush db
+  diskquery test.db { SELECT * FROM t1; }
+} {1 2 3 4 5 6 7 8 9 10 11 12}
+do_test 2.1.4 {
+  sqlite3_db_cacheflush db
+  diskquery test.db2 { SELECT * FROM t4; }
+} {A B C D}
+do_execsql_test 2.1.5 { COMMIT }
+
+# And that hitting an SQLITE_BUSY when flushing "main" does not stop
+# SQLite from going on to flush "aux".
+#
+do_execsql_test 2.2.0 {
+  BEGIN;
+    INSERT INTO t1 VALUES(13, 14);
+    INSERT INTO t4 VALUES('E', 'F');
+}
+do_test 2.2.1 {
+  diskquery test.db { SELECT * FROM t1; }
+} {1 2 3 4 5 6 7 8 9 10 11 12}
+do_test 2.2.2 {
+  diskquery test.db2 { SELECT * FROM t4; }
+} {A B C D}
+do_test 2.2.3 {
+  sqlite3 db2 test.db
+  execsql {
+    BEGIN;
+      SELECT * FROM t1;
+  } db2
+  list [catch { sqlite3_db_cacheflush db } msg] $msg
+} {1 {database is locked}}
+do_test 2.2.4 {
+  diskquery test.db { SELECT * FROM t1; }
+} {1 2 3 4 5 6 7 8 9 10 11 12}
+do_test 2.2.5 {
+  diskquery test.db2 { SELECT * FROM t4; }
+} {A B C D E F}
+do_test 2.2.6 {
+  db2 close
+  sqlite3_db_cacheflush db
+  diskquery test.db { SELECT * FROM t1; }
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14}
+do_execsql_test 2.2.7 { COMMIT }
+
+#-------------------------------------------------------------------------
+# Test that nothing terrible happens if sqlite3_db_cacheflush() is
+# called on an in-memory database.
+#
+do_test 3.0 {
+  db close
+  sqlite3 db :memory:
+  db eval {
+    CREATE TABLE t1(x PRIMARY KEY);
+    CREATE TABLE t2(y PRIMARY KEY);
+    BEGIN;
+      INSERT INTO t1 VALUES(randomblob(100));
+      INSERT INTO t2 VALUES(randomblob(100));
+      INSERT INTO t1 VALUES(randomblob(100));
+      INSERT INTO t2 VALUES(randomblob(100));
+  }
+  sqlite3_db_cacheflush db
+} {}
+
+do_execsql_test 3.1 { PRAGMA integrity_check } ok
+do_execsql_test 3.2 { COMMIT }
+do_execsql_test 3.3 { PRAGMA integrity_check } ok
+do_execsql_test 3.4 { 
+  SELECT count(*) FROM t1;
+  SELECT count(*) FROM t2;
+} {2 2}
+
+#-------------------------------------------------------------------------
+# Test that calling sqlite3_db_cacheflush() does not interfere with
+# savepoint transactions.
+#
+do_test 4.0 {
+  reset_db
+  execsql {
+    CREATE TABLE ta(a, aa);
+    CREATE TABLE tb(b, bb);
+    INSERT INTO ta VALUES('a', randomblob(500));
+    INSERT INTO tb VALUES('b', randomblob(500));
+    BEGIN;
+      UPDATE ta SET a = 'A';
+      SAVEPOINT one;
+        UPDATE tb SET b = 'B';
+  }
+
+  sqlite3_db_cacheflush db
+  diskquery test.db {
+    SELECT a FROM ta;
+    SELECT b FROM tb;
+  }
+} {A B}
+
+do_test 4.1 {
+  execsql { 
+    ROLLBACK TO one;
+  }
+  sqlite3_db_cacheflush db
+  diskquery test.db {
+    SELECT a FROM ta;
+    SELECT b FROM tb;
+  }
+} {A b}
+
+do_test 4.2 {
+  execsql { 
+    INSERT INTO tb VALUES('c', randomblob(10));
+    INSERT INTO tb VALUES('d', randomblob(10));
+    INSERT INTO tb VALUES('e', randomblob(10));
+  }
+  sqlite3_db_cacheflush db
+  diskquery test.db {
+    SELECT a FROM ta;
+    SELECT b FROM tb;
+  }
+} {A b c d e}
+
+do_test 4.3 {
+  execsql { 
+    SAVEPOINT two;
+    UPDATE tb SET b = upper(b);
+  }
+  sqlite3_db_cacheflush db
+  diskquery test.db {
+    SELECT a FROM ta;
+    SELECT b FROM tb;
+  }
+} {A B C D E}
+
+do_test 4.4 {
+  execsql { 
+    ROLLBACK TO two;
+  }
+  sqlite3_db_cacheflush db
+  diskquery test.db {
+    SELECT a FROM ta;
+    SELECT b FROM tb;
+  }
+} {A b c d e}
+
+do_test 4.4 {
+  execsql { 
+    ROLLBACK TO one;
+  }
+  sqlite3_db_cacheflush db
+  diskquery test.db {
+    SELECT a FROM ta;
+    SELECT b FROM tb;
+  }
+} {A b}
+
+do_test 4.5 {
+  execsql { 
+    ROLLBACK;
+    SELECT a FROM ta;
+    SELECT b FROM tb;
+  }
+} {a b}
+
+test_restore_config_pagecache
+finish_test
diff --git a/test/cachespill.test b/test/cachespill.test
new file mode 100644
index 0000000000000000000000000000000000000000..069251354fc43f750893eb1d4a076de2a57f87f7
--- /dev/null
+++ b/test/cachespill.test
@@ -0,0 +1,77 @@
+# 2017 April 26
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix cachespill
+
+ifcapable !pager_pragmas {
+  finish_test
+  return
+}
+
+#-------------------------------------------------------------------------
+# Test that "PRAGMA cache_spill = 0" completely disables cache spilling.
+#
+do_execsql_test 1.1 {
+  PRAGMA auto_vacuum = 0;
+  PRAGMA page_size = 1024;
+  PRAGMA cache_size = 100;
+  CREATE TABLE t1(a);
+}
+
+do_test 1.2 {
+  file size test.db
+} {2048}
+
+do_test 1.3 {
+  execsql {
+    BEGIN;
+      WITH s(i) AS (
+        SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<200
+      ) INSERT INTO t1 SELECT randomblob(900) FROM s;
+  }
+  expr {[file size test.db] > 50000}
+} {1}
+
+do_test 1.4 {
+  execsql ROLLBACK
+  file size test.db
+} {2048}
+
+do_test 1.5 {
+  execsql {
+    PRAGMA cache_spill = 0;
+    BEGIN;
+      WITH s(i) AS (
+        SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<200
+      ) INSERT INTO t1 SELECT randomblob(900) FROM s;
+  }
+  file size test.db
+} {2048}
+
+do_test 1.5 {
+  execsql {
+    ROLLBACK;
+    PRAGMA cache_spill = 1;
+    BEGIN;
+      WITH s(i) AS (
+        SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<200
+      ) INSERT INTO t1 SELECT randomblob(900) FROM s;
+  }
+  expr {[file size test.db] > 50000}
+} {1}
+
+do_execsql_test 1.6 { ROLLBACK }
+
+
+finish_test
diff --git a/test/capi2.test b/test/capi2.test
new file mode 100644
index 0000000000000000000000000000000000000000..de47ab3d4fd4b7ccf86436250c343f7edad0a710
--- /dev/null
+++ b/test/capi2.test
@@ -0,0 +1,803 @@
+# 2003 January 29
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script testing the callback-free C/C++ API.
+#
+# $Id: capi2.test,v 1.37 2008/12/30 17:55:00 drh Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Return the text values from the current row pointed at by STMT as a list.
+proc get_row_values {STMT} {
+  set VALUES [list]
+  for {set i 0} {$i < [sqlite3_data_count $STMT]} {incr i} {
+    lappend VALUES [sqlite3_column_text $STMT $i]
+  }
+  return $VALUES
+}
+
+# Return the column names followed by declaration types for the result set
+# of the SQL statement STMT.
+#
+# i.e. for:
+# CREATE TABLE abc(a text, b integer); 
+# SELECT * FROM abc;
+#
+# The result is {a b text integer}
+proc get_column_names {STMT} {
+  set VALUES [list]
+  for {set i 0} {$i < [sqlite3_column_count $STMT]} {incr i} {
+    lappend VALUES [sqlite3_column_name $STMT $i]
+  }
+  for {set i 0} {$i < [sqlite3_column_count $STMT]} {incr i} {
+    lappend VALUES [sqlite3_column_decltype $STMT $i]
+  }
+  return $VALUES
+}
+
+# Check basic functionality
+#
+do_test capi2-1.1 {
+  set DB [sqlite3_connection_pointer db]
+  execsql {CREATE TABLE t1(a,b,c)}
+  set VM [sqlite3_prepare $DB {SELECT name, rowid FROM sqlite_master} -1 TAIL]
+  set TAIL
+} {}
+do_test capi2-1.2 {
+  sqlite3_step $VM
+} {SQLITE_ROW}
+do_test capi2-1.3 {
+  sqlite3_data_count $VM
+} {2}
+do_test capi2-1.4 {
+  get_row_values $VM
+} {t1 1}
+do_test capi2-1.5 {
+  get_column_names $VM
+} {name rowid TEXT INTEGER}
+do_test capi2-1.6 {
+  sqlite3_step $VM 
+} {SQLITE_DONE}
+do_test capi2-1.7 {
+  list [sqlite3_column_count $VM] [get_row_values $VM] [get_column_names $VM]
+} {2 {} {name rowid TEXT INTEGER}}
+
+# This used to be SQLITE_MISUSE.  But now we automatically reset prepared
+# statements.
+ifcapable autoreset {
+  do_test capi2-1.8 {
+    sqlite3_step $VM
+  } {SQLITE_ROW}
+} else {
+  do_test capi2-1.8 {
+    sqlite3_step $VM
+  } {SQLITE_MISUSE}
+}
+
+# Update: In v2, once SQLITE_MISUSE is returned the statement handle cannot
+# be interrogated for more information. However in v3, since the column
+# count, names and types are determined at compile time, these are still
+# accessible after an SQLITE_MISUSE error.
+do_test capi2-1.9 {
+  sqlite3_reset $VM
+  list [sqlite3_column_count $VM] [get_row_values $VM] [get_column_names $VM]
+} {2 {} {name rowid TEXT INTEGER}}
+do_test capi2-1.10 {
+  sqlite3_data_count $VM
+} {0}
+
+do_test capi2-1.11 {
+  sqlite3_finalize $VM
+} {SQLITE_OK}
+
+# Check to make sure that the "tail" of a multi-statement SQL script
+# is returned by sqlite3_prepare.
+#
+do_test capi2-2.1 {
+  set SQL {
+    SELECT name, rowid FROM sqlite_master;
+    SELECT name, rowid FROM sqlite_master WHERE 0;
+    -- A comment at the end
+  }
+  set VM [sqlite3_prepare $DB $SQL -1 SQL]
+  set SQL
+} {
+    SELECT name, rowid FROM sqlite_master WHERE 0;
+    -- A comment at the end
+  }
+do_test capi2-2.2 {
+  set r [sqlite3_step $VM]
+  lappend r [sqlite3_column_count $VM] \
+            [get_row_values $VM] \
+            [get_column_names $VM]
+} {SQLITE_ROW 2 {t1 1} {name rowid TEXT INTEGER}}
+do_test capi2-2.3 {
+  set r [sqlite3_step $VM]
+  lappend r [sqlite3_column_count $VM] \
+            [get_row_values $VM] \
+            [get_column_names $VM]
+} {SQLITE_DONE 2 {} {name rowid TEXT INTEGER}}
+do_test capi2-2.4 {
+  sqlite3_finalize $VM
+} {SQLITE_OK}
+do_test capi2-2.5 {
+  set VM [sqlite3_prepare $DB $SQL -1 SQL]
+  set SQL
+} {
+    -- A comment at the end
+  }
+do_test capi2-2.6 {
+  set r [sqlite3_step $VM]
+  lappend r [sqlite3_column_count $VM] \
+            [get_row_values $VM] \
+            [get_column_names $VM]
+} {SQLITE_DONE 2 {} {name rowid TEXT INTEGER}}
+do_test capi2-2.7 {
+  sqlite3_finalize $VM
+} {SQLITE_OK}
+do_test capi2-2.8 {
+  set VM [sqlite3_prepare $DB $SQL -1 SQL]
+  list $SQL $VM
+} {{} {}}
+
+# Check the error handling.
+#
+do_test capi2-3.1 {
+  set rc [catch {
+      sqlite3_prepare $DB {select bogus from sqlite_master} -1 TAIL
+  } msg]
+  lappend rc $msg $TAIL
+} {1 {(1) no such column: bogus} {}}
+do_test capi2-3.2 {
+  set rc [catch {
+      sqlite3_prepare $DB {select bogus from } -1 TAIL
+  } msg]
+  lappend rc $msg $TAIL
+} {1 {(1) incomplete input} {}}
+do_test capi2-3.3 {
+  set rc [catch {
+      sqlite3_prepare $DB {;;;;select bogus from sqlite_master} -1 TAIL
+  } msg]
+  lappend rc $msg $TAIL
+} {1 {(1) no such column: bogus} {}}
+do_test capi2-3.4 {
+  set rc [catch {
+      sqlite3_prepare $DB {select bogus from sqlite_master;x;} -1 TAIL
+  } msg]
+  lappend rc $msg $TAIL
+} {1 {(1) no such column: bogus} {x;}}
+do_test capi2-3.5 {
+  set rc [catch {
+      sqlite3_prepare $DB {select bogus from sqlite_master;;;x;} -1 TAIL
+  } msg]
+  lappend rc $msg $TAIL
+} {1 {(1) no such column: bogus} {;;x;}}
+do_test capi2-3.6 {
+  set rc [catch {
+      sqlite3_prepare $DB {select 5/0;} -1 TAIL
+  } VM]
+  lappend rc $TAIL
+} {0 {}}
+do_test capi2-3.7 {
+  list [sqlite3_step $VM] \
+       [sqlite3_column_count $VM] \
+       [get_row_values $VM] \
+       [get_column_names $VM]
+} {SQLITE_ROW 1 {{}} {5/0 {}}}
+do_test capi2-3.8 {
+  sqlite3_finalize $VM
+} {SQLITE_OK}
+do_test capi2-3.9 {
+  execsql {CREATE UNIQUE INDEX i1 ON t1(a)}
+  set VM [sqlite3_prepare $DB {INSERT INTO t1 VALUES(1,2,3)} -1 TAIL]
+  set TAIL
+} {}
+do_test capi2-3.9b {db changes} {0}
+do_test capi2-3.10 {
+  list [sqlite3_step $VM] \
+       [sqlite3_column_count $VM] \
+       [get_row_values $VM] \
+       [get_column_names $VM]
+} {SQLITE_DONE 0 {} {}}
+
+# Update for v3 - the change has not actually happened until the query is
+# finalized. Is this going to cause trouble for anyone? Lee Nelson maybe?
+# (Later:) The change now happens just before SQLITE_DONE is returned.
+do_test capi2-3.10b {db changes} {1}
+do_test capi2-3.11 {
+  sqlite3_finalize $VM
+} {SQLITE_OK}
+do_test capi2-3.11b {db changes} {1}
+#do_test capi2-3.12-misuse {
+#  sqlite3_finalize $VM
+#} {SQLITE_MISUSE}
+do_test capi2-3.13 {
+  set VM [sqlite3_prepare $DB {INSERT INTO t1 VALUES(1,3,4)} -1 TAIL]
+  list [sqlite3_step $VM] \
+       [sqlite3_column_count $VM] \
+       [get_row_values $VM] \
+       [get_column_names $VM]
+} {SQLITE_ERROR 0 {} {}}
+
+# Update for v3: Preparing a statement does not affect the change counter.
+# (Test result changes from 0 to 1).  (Later:) change counter updates occur
+# when sqlite3_step returns, not at finalize time.
+do_test capi2-3.13b {db changes} {0}
+
+do_test capi2-3.14 {
+  list [sqlite3_finalize $VM] [sqlite3_errmsg $DB] \
+       [sqlite3_extended_errcode $DB]
+} {SQLITE_CONSTRAINT {UNIQUE constraint failed: t1.a} SQLITE_CONSTRAINT_UNIQUE}
+do_test capi2-3.15 {
+  set VM [sqlite3_prepare $DB {CREATE TABLE t2(a NOT NULL, b)} -1 TAIL]
+  set TAIL
+} {}
+do_test capi2-3.16 {
+  list [sqlite3_step $VM] \
+       [sqlite3_column_count $VM] \
+       [get_row_values $VM] \
+       [get_column_names $VM]
+} {SQLITE_DONE 0 {} {}}
+do_test capi2-3.17 {
+  list [sqlite3_finalize $VM] [sqlite3_errmsg $DB]
+} {SQLITE_OK {not an error}}
+do_test capi2-3.18 {
+  set VM [sqlite3_prepare $DB {INSERT INTO t2 VALUES(NULL,2)} -1 TAIL]
+  list [sqlite3_step $VM] \
+       [sqlite3_column_count $VM] \
+       [get_row_values $VM] \
+       [get_column_names $VM]
+} {SQLITE_ERROR 0 {} {}}
+do_test capi2-3.19 {
+  list [sqlite3_finalize $VM] [sqlite3_errmsg $DB] \
+       [sqlite3_extended_errcode $DB]
+} {SQLITE_CONSTRAINT {NOT NULL constraint failed: t2.a} SQLITE_CONSTRAINT_NOTNULL}
+
+do_test capi2-3.20 {
+  execsql {
+    CREATE TABLE a1(message_id, name , UNIQUE(message_id, name) );
+    INSERT INTO a1 VALUES(1, 1);
+  }
+} {}
+do_test capi2-3.21 {
+  set VM [sqlite3_prepare $DB {INSERT INTO a1 VALUES(1, 1)} -1 TAIL]
+  sqlite3_step $VM
+} {SQLITE_ERROR}
+do_test capi2-3.22 {
+  sqlite3_errcode $DB
+} {SQLITE_ERROR}
+do_test capi2-3.23 {
+  sqlite3_finalize $VM
+} {SQLITE_CONSTRAINT}
+do_test capi2-3.24 {
+  list [sqlite3_errcode $DB] [sqlite3_extended_errcode $DB]
+} {SQLITE_CONSTRAINT SQLITE_CONSTRAINT_UNIQUE}
+
+# Two or more virtual machines exists at the same time.
+#
+do_test capi2-4.1 {
+  set VM1 [sqlite3_prepare $DB {INSERT INTO t2 VALUES(1,2)} -1 TAIL]
+  set TAIL
+} {}
+do_test capi2-4.2 {
+  set VM2 [sqlite3_prepare $DB {INSERT INTO t2 VALUES(2,3)} -1 TAIL]
+  set TAIL
+} {}
+do_test capi2-4.3 {
+  set VM3 [sqlite3_prepare $DB {INSERT INTO t2 VALUES(3,4)} -1 TAIL]
+  set TAIL
+} {}
+do_test capi2-4.4 {
+  list [sqlite3_step $VM2] \
+       [sqlite3_column_count $VM2] \
+       [get_row_values $VM2] \
+       [get_column_names $VM2]
+} {SQLITE_DONE 0 {} {}}
+do_test capi2-4.5 {
+  execsql {SELECT * FROM t2 ORDER BY a}
+} {2 3}
+do_test capi2-4.6 {
+  sqlite3_finalize $VM2
+} {SQLITE_OK}
+do_test capi2-4.7 {
+  list [sqlite3_step $VM3] \
+       [sqlite3_column_count $VM3] \
+       [get_row_values $VM3] \
+       [get_column_names $VM3]
+} {SQLITE_DONE 0 {} {}}
+do_test capi2-4.8 {
+  execsql {SELECT * FROM t2 ORDER BY a}
+} {2 3 3 4}
+do_test capi2-4.9 {
+  sqlite3_finalize $VM3
+} {SQLITE_OK}
+do_test capi2-4.10 {
+  list [sqlite3_step $VM1] \
+       [sqlite3_column_count $VM1] \
+       [get_row_values $VM1] \
+       [get_column_names $VM1]
+} {SQLITE_DONE 0 {} {}}
+do_test capi2-4.11 {
+  execsql {SELECT * FROM t2 ORDER BY a}
+} {1 2 2 3 3 4}
+do_test capi2-4.12 {
+  sqlite3_finalize $VM1
+} {SQLITE_OK}
+
+# Interleaved SELECTs
+#
+do_test capi2-5.1 {
+  set VM1 [sqlite3_prepare $DB {SELECT * FROM t2} -1 TAIL]
+  set VM2 [sqlite3_prepare $DB {SELECT * FROM t2} -1 TAIL]
+  set VM3 [sqlite3_prepare $DB {SELECT * FROM t2} -1 TAIL]
+  list [sqlite3_step $VM1] \
+       [sqlite3_column_count $VM1] \
+       [get_row_values $VM1] \
+       [get_column_names $VM1]
+} {SQLITE_ROW 2 {2 3} {a b {} {}}}
+do_test capi2-5.2 {
+  list [sqlite3_step $VM2] \
+       [sqlite3_column_count $VM2] \
+       [get_row_values $VM2] \
+       [get_column_names $VM2]
+} {SQLITE_ROW 2 {2 3} {a b {} {}}}
+do_test capi2-5.3 {
+  list [sqlite3_step $VM1] \
+       [sqlite3_column_count $VM1] \
+       [get_row_values $VM1] \
+       [get_column_names $VM1]
+} {SQLITE_ROW 2 {3 4} {a b {} {}}}
+do_test capi2-5.4 {
+  list [sqlite3_step $VM3] \
+       [sqlite3_column_count $VM3] \
+       [get_row_values $VM3] \
+       [get_column_names $VM3]
+} {SQLITE_ROW 2 {2 3} {a b {} {}}}
+do_test capi2-5.5 {
+  list [sqlite3_step $VM3] \
+       [sqlite3_column_count $VM3] \
+       [get_row_values $VM3] \
+       [get_column_names $VM3]
+} {SQLITE_ROW 2 {3 4} {a b {} {}}}
+do_test capi2-5.6 {
+  list [sqlite3_step $VM3] \
+       [sqlite3_column_count $VM3] \
+       [get_row_values $VM3] \
+       [get_column_names $VM3]
+} {SQLITE_ROW 2 {1 2} {a b {} {}}}
+do_test capi2-5.7 {
+  list [sqlite3_step $VM3] \
+       [sqlite3_column_count $VM3] \
+       [get_row_values $VM3] \
+       [get_column_names $VM3]
+} {SQLITE_DONE 2 {} {a b {} {}}}
+do_test capi2-5.8 {
+  sqlite3_finalize $VM3
+} {SQLITE_OK}
+do_test capi2-5.9 {
+  list [sqlite3_step $VM1] \
+       [sqlite3_column_count $VM1] \
+       [get_row_values $VM1] \
+       [get_column_names $VM1]
+} {SQLITE_ROW 2 {1 2} {a b {} {}}}
+do_test capi2-5.10 {
+  sqlite3_finalize $VM1
+} {SQLITE_OK}
+do_test capi2-5.11 {
+  list [sqlite3_step $VM2] \
+       [sqlite3_column_count $VM2] \
+       [get_row_values $VM2] \
+       [get_column_names $VM2]
+} {SQLITE_ROW 2 {3 4} {a b {} {}}}
+do_test capi2-5.12 {
+  list [sqlite3_step $VM2] \
+       [sqlite3_column_count $VM2] \
+       [get_row_values $VM2] \
+       [get_column_names $VM2]
+} {SQLITE_ROW 2 {1 2} {a b {} {}}}
+do_test capi2-5.11 {
+  sqlite3_finalize $VM2
+} {SQLITE_OK}
+
+# Check for proper SQLITE_BUSY returns.
+#
+do_test capi2-6.1 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t3(x counter);
+    INSERT INTO t3 VALUES(1);
+    INSERT INTO t3 VALUES(2);
+    INSERT INTO t3 SELECT x+2 FROM t3;
+    INSERT INTO t3 SELECT x+4 FROM t3;
+    INSERT INTO t3 SELECT x+8 FROM t3;
+    COMMIT;
+  }
+  set VM1 [sqlite3_prepare $DB {SELECT * FROM t3} -1 TAIL]
+  sqlite3 db2 test.db
+  execsql {BEGIN} db2
+} {}
+# Update for v3: BEGIN doesn't write-lock the database. It is quite
+# difficult to get v3 to write-lock the database, which causes a few
+# problems for test scripts.
+#
+# do_test capi2-6.2 {
+#   list [sqlite3_step $VM1] \
+#        [sqlite3_column_count $VM1] \
+#        [get_row_values $VM1] \
+#        [get_column_names $VM1]
+# } {SQLITE_BUSY 0 {} {}}
+do_test capi2-6.3 {
+  execsql {COMMIT} db2
+} {}
+do_test capi2-6.4 {
+  list [sqlite3_step $VM1] \
+       [sqlite3_column_count $VM1] \
+       [get_row_values $VM1] \
+       [get_column_names $VM1]
+} {SQLITE_ROW 1 1 {x counter}}
+do_test capi2-6.5 {
+  catchsql {INSERT INTO t3 VALUES(10);} db2
+} {1 {database is locked}}
+do_test capi2-6.6 {
+  list [sqlite3_step $VM1] \
+       [sqlite3_column_count $VM1] \
+       [get_row_values $VM1] \
+       [get_column_names $VM1]
+} {SQLITE_ROW 1 2 {x counter}}
+do_test capi2-6.7 {
+  execsql {SELECT * FROM t2} db2
+} {2 3 3 4 1 2}
+do_test capi2-6.8 {
+  list [sqlite3_step $VM1] \
+       [sqlite3_column_count $VM1] \
+       [get_row_values $VM1] \
+       [get_column_names $VM1]
+} {SQLITE_ROW 1 3 {x counter}}
+do_test capi2-6.9 {
+  execsql {SELECT * FROM t2} 
+} {2 3 3 4 1 2}
+do_test capi2-6.10 {
+  list [sqlite3_step $VM1] \
+       [sqlite3_column_count $VM1] \
+       [get_row_values $VM1] \
+       [get_column_names $VM1]
+} {SQLITE_ROW 1 4 {x counter}}
+do_test capi2-6.11 {
+  execsql {BEGIN}
+} {}
+do_test capi2-6.12 {
+  list [sqlite3_step $VM1] \
+       [sqlite3_column_count $VM1] \
+       [get_row_values $VM1] \
+       [get_column_names $VM1]
+} {SQLITE_ROW 1 5 {x counter}}
+
+# A read no longer blocks a write in the same connection.
+#do_test capi2-6.13 {
+#  catchsql {UPDATE t3 SET x=x+1}
+#} {1 {database table is locked}}
+
+do_test capi2-6.14 {
+  list [sqlite3_step $VM1] \
+       [sqlite3_column_count $VM1] \
+       [get_row_values $VM1] \
+       [get_column_names $VM1]
+} {SQLITE_ROW 1 6 {x counter}}
+do_test capi2-6.15 {
+  execsql {SELECT * FROM t1}
+} {1 2 3}
+do_test capi2-6.16 {
+  list [sqlite3_step $VM1] \
+       [sqlite3_column_count $VM1] \
+       [get_row_values $VM1] \
+       [get_column_names $VM1]
+} {SQLITE_ROW 1 7 {x counter}}
+do_test capi2-6.17 {
+  catchsql {UPDATE t1 SET b=b+1}
+} {0 {}}
+do_test capi2-6.18 {
+  list [sqlite3_step $VM1] \
+       [sqlite3_column_count $VM1] \
+       [get_row_values $VM1] \
+       [get_column_names $VM1]
+} {SQLITE_ROW 1 8 {x counter}}
+do_test capi2-6.19 {
+  execsql {SELECT * FROM t1}
+} {1 3 3}
+do_test capi2-6.20 {
+  list [sqlite3_step $VM1] \
+       [sqlite3_column_count $VM1] \
+       [get_row_values $VM1] \
+       [get_column_names $VM1]
+} {SQLITE_ROW 1 9 {x counter}}
+#do_test capi2-6.21 {
+#  execsql {ROLLBACK; SELECT * FROM t1}
+#} {1 2 3}
+do_test capi2-6.22 {
+  list [sqlite3_step $VM1] \
+       [sqlite3_column_count $VM1] \
+       [get_row_values $VM1] \
+       [get_column_names $VM1]
+} {SQLITE_ROW 1 10 {x counter}}
+#do_test capi2-6.23 {
+#  execsql {BEGIN TRANSACTION;}
+#} {}
+do_test capi2-6.24 {
+  list [sqlite3_step $VM1] \
+       [sqlite3_column_count $VM1] \
+       [get_row_values $VM1] \
+       [get_column_names $VM1]
+} {SQLITE_ROW 1 11 {x counter}}
+do_test capi2-6.25 {
+  execsql {
+    INSERT INTO t1 VALUES(2,3,4);
+    SELECT * FROM t1;
+  }
+} {1 3 3 2 3 4}
+do_test capi2-6.26 {
+  list [sqlite3_step $VM1] \
+       [sqlite3_column_count $VM1] \
+       [get_row_values $VM1] \
+       [get_column_names $VM1]
+} {SQLITE_ROW 1 12 {x counter}}
+do_test capi2-6.27 {
+  catchsql {
+    INSERT INTO t1 VALUES(2,4,5);
+    SELECT * FROM t1;
+  }
+} {1 {UNIQUE constraint failed: t1.a}}
+do_test capi2-6.28 {
+  list [sqlite3_step $VM1] \
+       [sqlite3_column_count $VM1] \
+       [get_row_values $VM1] \
+       [get_column_names $VM1]
+} {SQLITE_ROW 1 13 {x counter}}
+do_test capi2-6.99 {
+  sqlite3_finalize $VM1
+} {SQLITE_OK}
+catchsql {ROLLBACK}
+
+do_test capi2-7.1 {
+  stepsql $DB {
+    SELECT * FROM t1
+  }
+} {0 1 2 3}
+do_test capi2-7.2 {
+  stepsql $DB {
+    PRAGMA count_changes=on
+  }
+} {0}
+do_test capi2-7.3 {
+  stepsql $DB {
+    UPDATE t1 SET a=a+10;
+  }
+} {0 1}
+do_test capi2-7.4 {
+  stepsql $DB {
+    INSERT INTO t1 SELECT a+1,b+1,c+1 FROM t1;
+  }
+} {0 1}
+do_test capi2-7.4b {sqlite3_changes $DB} {1}
+do_test capi2-7.5 {
+  stepsql $DB {
+    UPDATE t1 SET a=a+10;
+  }
+} {0 2}
+do_test capi2-7.5b {sqlite3_changes $DB} {2}
+do_test capi2-7.6 {
+  stepsql $DB {
+    SELECT * FROM t1;
+  }
+} {0 21 2 3 22 3 4}
+do_test capi2-7.7 {
+  stepsql $DB {
+    INSERT INTO t1 SELECT a+2,b+2,c+2 FROM t1;
+  }
+} {0 2}
+do_test capi2-7.8 {
+  sqlite3_changes $DB
+} {2}
+do_test capi2-7.9 {
+  stepsql $DB {
+    SELECT * FROM t1;
+  }
+} {0 21 2 3 22 3 4 23 4 5 24 5 6}
+do_test capi2-7.10 {
+  stepsql $DB {
+    UPDATE t1 SET a=a-20;
+    SELECT * FROM t1;
+  }
+} {0 4 1 2 3 2 3 4 3 4 5 4 5 6}
+
+# Update for version 3: A SELECT statement no longer resets the change
+# counter (Test result changes from 0 to 4).
+do_test capi2-7.11 {
+  sqlite3_changes $DB
+} {4}
+do_test capi2-7.11a {
+  execsql {SELECT count(*) FROM t1}
+} {4}
+
+ifcapable {explain} {
+  do_test capi2-7.12 {
+    set x [stepsql $DB {EXPLAIN SELECT * FROM t1}]
+    lindex $x 0
+  } {0}
+}
+
+# Ticket #261 - make sure we can finalize before the end of a query.
+#
+do_test capi2-8.1 {
+  set VM1 [sqlite3_prepare $DB {SELECT * FROM t2} -1 TAIL]
+  sqlite3_finalize $VM1
+} {SQLITE_OK}
+  
+# Tickets #384 and #385 - make sure the TAIL argument to sqlite3_prepare
+# and all of the return pointers in sqlite_step can be null.
+#
+do_test capi2-9.1 {
+  set VM1 [sqlite3_prepare $DB {SELECT * FROM t2} -1 DUMMY]
+  sqlite3_step $VM1
+  sqlite3_finalize $VM1
+} {SQLITE_OK}
+
+# Test that passing a NULL pointer to sqlite3_finalize() or sqlite3_reset
+# does not cause an error.
+do_test capi2-10.1 {
+  sqlite3_finalize 0
+} {SQLITE_OK}
+do_test capi2-10.2 {
+  sqlite3_reset 0
+} {SQLITE_OK}
+
+#---------------------------------------------------------------------------
+# The following tests - capi2-11.* - test the "column origin" APIs.
+#
+#   sqlite3_column_origin_name()
+#   sqlite3_column_database_name()
+#   sqlite3_column_table_name()
+#
+
+ifcapable columnmetadata {
+
+# This proc uses the database handle $::DB to compile the SQL statement passed
+# as a parameter. The return value of this procedure is a list with one
+# element for each column returned by the compiled statement. Each element of
+# this list is itself a list of length three, consisting of the origin
+# database, table and column for the corresponding returned column.
+proc check_origins {sql} {
+  set ret [list]
+  set ::STMT [sqlite3_prepare $::DB $sql -1 dummy]
+  for {set i 0} {$i < [sqlite3_column_count $::STMT]} {incr i} {
+    lappend ret [list                           \
+      [sqlite3_column_database_name $::STMT $i] \
+      [sqlite3_column_table_name $::STMT $i]    \
+      [sqlite3_column_origin_name $::STMT $i]   \
+    ]
+  }
+  sqlite3_finalize $::STMT
+  return $ret
+}
+do_test capi2-11.1 {
+  execsql {
+    CREATE TABLE tab1(col1, col2);
+  }
+} {}
+do_test capi2-11.2 {
+  check_origins {SELECT col2, col1 FROM tab1}
+} [list {main tab1 col2} {main tab1 col1}]
+do_test capi2-11.3 {
+  check_origins {SELECT col2 AS hello, col1 AS world FROM tab1}
+} [list {main tab1 col2} {main tab1 col1}]
+
+ifcapable subquery {
+  do_test capi2-11.4 {
+    check_origins {SELECT b, a FROM (SELECT col1 AS a, col2 AS b FROM tab1)}
+  } [list {main tab1 col2} {main tab1 col1}]
+  do_test capi2-11.5 {
+    check_origins {SELECT (SELECT col2 FROM tab1), (SELECT col1 FROM tab1)}
+  } [list {main tab1 col2} {main tab1 col1}]
+  do_test capi2-11.6 {
+    check_origins {SELECT (SELECT col2), (SELECT col1) FROM tab1}
+  } [list {main tab1 col2} {main tab1 col1}]
+  do_test capi2-11.7 {
+    check_origins {SELECT * FROM tab1}
+  } [list {main tab1 col1} {main tab1 col2}]
+  do_test capi2-11.8 {
+    check_origins {SELECT * FROM (SELECT * FROM tab1)}
+  } [list {main tab1 col1} {main tab1 col2}]
+}
+
+ifcapable view&&subquery {
+  do_test capi2-12.1 {
+    execsql {
+      CREATE VIEW view1 AS SELECT * FROM  tab1;
+    }
+  } {}
+  do_test capi2-12.2 {
+    check_origins {SELECT col2, col1 FROM view1}
+  } [list {main tab1 col2} {main tab1 col1}]
+  do_test capi2-12.3 {
+    check_origins {SELECT col2 AS hello, col1 AS world FROM view1}
+  } [list {main tab1 col2} {main tab1 col1}]
+  do_test capi2-12.4 {
+    check_origins {SELECT b, a FROM (SELECT col1 AS a, col2 AS b FROM view1)}
+  } [list {main tab1 col2} {main tab1 col1}]
+  do_test capi2-12.5 {
+    check_origins {SELECT (SELECT col2 FROM view1), (SELECT col1 FROM view1)}
+  } [list {main tab1 col2} {main tab1 col1}]
+  do_test capi2-12.6 {
+    check_origins {SELECT (SELECT col2), (SELECT col1) FROM view1}
+  } [list {main tab1 col2} {main tab1 col1}]
+  do_test capi2-12.7 {
+    check_origins {SELECT * FROM view1}
+  } [list {main tab1 col1} {main tab1 col2}]
+  do_test capi2-12.8 {
+    check_origins {select * from (select * from view1)}
+  } [list {main tab1 col1} {main tab1 col2}]
+  do_test capi2-12.9 {
+    check_origins {select * from (select * from (select * from view1))}
+  } [list {main tab1 col1} {main tab1 col2}]
+  do_test capi2-12.10 {
+    db close
+    sqlite3 db test.db
+    set ::DB [sqlite3_connection_pointer db]
+    check_origins {select * from (select * from (select * from view1))}
+  } [list {main tab1 col1} {main tab1 col2}]
+  
+  # This view will thwart the flattening optimization.
+  do_test capi2-13.1 {
+    execsql {
+      CREATE VIEW view2 AS SELECT * FROM tab1 limit 10 offset 10;
+    }
+  } {}
+  do_test capi2-13.2 {
+    check_origins {SELECT col2, col1 FROM view2}
+  } [list {main tab1 col2} {main tab1 col1}]
+  do_test capi2-13.3 {
+    check_origins {SELECT col2 AS hello, col1 AS world FROM view2}
+  } [list {main tab1 col2} {main tab1 col1}]
+  do_test capi2-13.4 {
+    check_origins {SELECT b, a FROM (SELECT col1 AS a, col2 AS b FROM view2)}
+  } [list {main tab1 col2} {main tab1 col1}]
+  do_test capi2-13.5 {
+    check_origins {SELECT (SELECT col2 FROM view2), (SELECT col1 FROM view2)}
+  } [list {main tab1 col2} {main tab1 col1}]
+  do_test capi2-13.6 {
+    check_origins {SELECT (SELECT col2), (SELECT col1) FROM view2}
+  } [list {main tab1 col2} {main tab1 col1}]
+  do_test capi2-13.7 {
+    check_origins {SELECT * FROM view2}
+  } [list {main tab1 col1} {main tab1 col2}]
+  do_test capi2-13.8 {
+    check_origins {select * from (select * from view2)}
+  } [list {main tab1 col1} {main tab1 col2}]
+  do_test capi2-13.9 {
+    check_origins {select * from (select * from (select * from view2))}
+  } [list {main tab1 col1} {main tab1 col2}]
+  do_test capi2-13.10 {
+    db close
+    sqlite3 db test.db
+    set ::DB [sqlite3_connection_pointer db]
+    check_origins {select * from (select * from (select * from view2))}
+  } [list {main tab1 col1} {main tab1 col2}]
+  do_test capi2-13.11 {
+    check_origins {select * from (select * from tab1 limit 10 offset 10)}
+  } [list {main tab1 col1} {main tab1 col2}]
+}
+
+
+} ;# ifcapable columnmetadata
+
+db2 close
+finish_test
diff --git a/test/capi3.test b/test/capi3.test
new file mode 100644
index 0000000000000000000000000000000000000000..e65f90e3aade0c0332478a4e32dee32e54409ead
--- /dev/null
+++ b/test/capi3.test
@@ -0,0 +1,1276 @@
+# 2003 January 29
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script testing the callback-free C/C++ API.
+#
+# $Id: capi3.test,v 1.70 2009/01/09 02:49:32 drh Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix capi3
+
+# Do not use a codec for tests in this file, as the database file is
+# manipulated directly using tcl scripts (using the [hexio_write] command).
+#
+do_not_use_codec
+
+# Return the UTF-16 representation of the supplied UTF-8 string $str.
+# If $nt is true, append two 0x00 bytes as a nul terminator.
+proc utf16 {str {nt 1}} {
+  set r [encoding convertto unicode $str]
+  if {$nt} {
+    append r "\x00\x00"
+  }
+  return $r
+}
+
+# Return the UTF-8 representation of the supplied UTF-16 string $str. 
+proc utf8 {str} {
+  # If $str ends in two 0x00 0x00 bytes, knock these off before
+  # converting to UTF-8 using TCL.
+  binary scan $str \c* vals
+  if {[lindex $vals end]==0 && [lindex $vals end-1]==0} {
+    set str [binary format \c* [lrange $vals 0 end-2]]
+  }
+
+  set r [encoding convertfrom unicode $str]
+  return $r
+}
+
+# These tests complement those in capi2.test. They are organized
+# as follows:
+#
+# capi3-1.*: Test sqlite3_prepare 
+# capi3-2.*: Test sqlite3_prepare16
+# capi3-3.*: Test sqlite3_open
+# capi3-4.*: Test sqlite3_open16
+# capi3-5.*: Test the various sqlite3_result_* APIs
+# capi3-6.*: Test that sqlite3_close fails if there are outstanding VMs.
+#
+
+set DB [sqlite3_connection_pointer db]
+
+do_test capi3-1.0 {
+  sqlite3_get_autocommit $DB
+} 1
+do_test capi3-1.1 {
+  set STMT [sqlite3_prepare $DB {SELECT name FROM sqlite_master} -1 TAIL]
+  sqlite3_finalize $STMT
+  set TAIL
+} {}
+do_test capi3-1.2.1 {
+  sqlite3_errcode $DB
+} {SQLITE_OK}
+do_test capi3-1.2.2 {
+  sqlite3_extended_errcode $DB
+} {SQLITE_OK}
+do_test capi3-1.3 {
+  sqlite3_errmsg $DB
+} {not an error}
+do_test capi3-1.4 {
+  set sql {SELECT name FROM sqlite_master;SELECT 10}
+  set STMT [sqlite3_prepare $DB $sql -1 TAIL]
+  sqlite3_finalize $STMT
+  set TAIL
+} {SELECT 10}
+do_test capi3-1.5 {
+  set sql {SELECT name FROM sqlite_master;SELECT 10}
+  set STMT [sqlite3_prepare $DB $sql [string length $sql] TAIL]
+  sqlite3_finalize $STMT
+  set TAIL
+} {SELECT 10}
+do_test capi3-1.6 {
+  set sql {SELECT name FROM sqlite_master;SELECT 10}
+  set STMT [sqlite3_prepare $DB $sql [expr [string length $sql]+1] TAIL]
+  sqlite3_finalize $STMT
+  set TAIL
+} {SELECT 10}
+
+do_test capi3-1.7 {
+  set sql {SELECT namex FROM sqlite_master}
+  catch {
+    set STMT [sqlite3_prepare $DB $sql -1 TAIL]
+  }
+} {1}
+do_test capi3-1.8.1 {
+  sqlite3_errcode $DB
+} {SQLITE_ERROR}
+do_test capi3-1.8.2 {
+  sqlite3_extended_errcode $DB
+} {SQLITE_ERROR}
+do_test capi3-1.9 {
+  sqlite3_errmsg $DB
+} {no such column: namex}
+
+ifcapable {utf16} {
+  do_test capi3-2.1 {
+    set sql16 [utf16 {SELECT name FROM sqlite_master}]
+    set STMT [sqlite3_prepare16 $DB $sql16 -1 ::TAIL]
+    sqlite3_finalize $STMT
+    utf8 $::TAIL
+  } {}
+  do_test capi3-2.2 {
+    set sql [utf16 {SELECT name FROM sqlite_master;SELECT 10}]
+    set STMT [sqlite3_prepare16 $DB $sql -1 TAIL]
+    sqlite3_finalize $STMT
+    utf8 $TAIL
+  } {SELECT 10}
+  do_test capi3-2.3 {
+    set sql [utf16 {SELECT namex FROM sqlite_master}]
+    catch {
+      set STMT [sqlite3_prepare16 $DB $sql -1]
+    }
+  } {1}
+  do_test capi3-2.4.1 {
+    sqlite3_errcode $DB
+  } {SQLITE_ERROR}
+  do_test capi3-2.4.2 {
+    sqlite3_extended_errcode $DB
+  } {SQLITE_ERROR}
+  do_test capi3-2.5 {
+    sqlite3_errmsg $DB
+  } {no such column: namex}
+
+  ifcapable schema_pragmas {
+    do_test capi3-2.6 {
+      execsql {CREATE TABLE tablename(x)}
+      set sql16 [utf16 {PRAGMA table_info("TableName"); --excess text}]
+      set STMT [sqlite3_prepare16 $DB $sql16 -1]
+      sqlite3_step $STMT
+    } SQLITE_ROW
+    do_test capi3-2.7 {
+      sqlite3_step $STMT
+    } SQLITE_DONE
+    do_test capi3-2.8 {
+      sqlite3_finalize $STMT
+    } SQLITE_OK
+  }
+
+} ;# endif utf16
+
+# rename sqlite3_open sqlite3_open_old
+# proc sqlite3_open {fname options} {sqlite3_open_new $fname $options}
+
+do_test capi3-3.1 {
+  set db2 [sqlite3_open test.db {}]
+  sqlite3_errcode $db2
+} {SQLITE_OK}
+# FIX ME: Should test the db handle works.
+do_test capi3-3.2 {
+  sqlite3_close $db2
+} {SQLITE_OK}
+do_test capi3-3.3 {
+  catch {
+    set db2 [sqlite3_open /bogus/path/test.db {}]
+  }
+  set ::capi3_errno [sqlite3_system_errno $db2]
+  list [sqlite3_extended_errcode $db2] [expr {$::capi3_errno!=0}]
+} {SQLITE_CANTOPEN 1}
+do_test capi3-3.4 {
+  sqlite3_errmsg $db2
+} {unable to open database file}
+do_test capi3-3.5 {
+  list [sqlite3_system_errno $db2] [sqlite3_close $db2]
+} [list $::capi3_errno SQLITE_OK]
+if {[clang_sanitize_address]==0 && 0} {
+  do_test capi3-3.6.1-misuse {
+    sqlite3_close $db2
+  } {SQLITE_MISUSE}
+  do_test capi3-3.6.2-misuse {
+    sqlite3_errmsg $db2
+  } {bad parameter or other API misuse}
+  ifcapable {utf16} {
+    do_test capi3-3.6.3-misuse {
+      utf8 [sqlite3_errmsg16 $db2]
+    } {bad parameter or other API misuse}
+  }
+}
+
+do_test capi3-3.7 {
+  set db2 [sqlite3_open]
+  sqlite3_errcode $db2
+} {SQLITE_OK}
+do_test capi3-3.8 {
+  sqlite3_close $db2
+} {SQLITE_OK}
+
+# rename sqlite3_open ""
+# rename sqlite3_open_old sqlite3_open
+
+ifcapable {utf16} {
+do_test capi3-4.1 {
+  set db2 [sqlite3_open16 [utf16 test.db] {}]
+  sqlite3_errcode $db2
+} {SQLITE_OK}
+# FIX ME: Should test the db handle works.
+do_test capi3-4.2 {
+  sqlite3_close $db2
+} {SQLITE_OK}
+do_test capi3-4.3 {
+  catch {
+    set db2 [sqlite3_open16 [utf16 /bogus/path/test.db] {}]
+  }
+  sqlite3_errcode $db2
+} {SQLITE_CANTOPEN}
+do_test capi3-4.4 {
+  utf8 [sqlite3_errmsg16 $db2]
+} {unable to open database file}
+do_test capi3-4.5 {
+  sqlite3_close $db2
+} {SQLITE_OK}
+} ;# utf16
+
+# This proc is used to test the following API calls:
+#
+# sqlite3_column_count
+# sqlite3_column_name
+# sqlite3_column_name16
+# sqlite3_column_decltype
+# sqlite3_column_decltype16
+#
+# $STMT is a compiled SQL statement. $test is a prefix
+# to use for test names within this proc. $names is a list
+# of the column names that should be returned by $STMT.
+# $decltypes is a list of column declaration types for $STMT.
+#
+# Example:
+#
+# set STMT [sqlite3_prepare "SELECT 1, 2, 2;" -1 DUMMY]
+# check_header test1.1 {1 2 3} {"" "" ""}
+#
+proc check_header {STMT test names decltypes} {
+
+  # Use the return value of sqlite3_column_count() to build
+  # a list of column indexes. i.e. If sqlite3_column_count
+  # is 3, build the list {0 1 2}.
+  set ::idxlist [list]
+  set ::numcols [sqlite3_column_count $STMT]
+  for {set i 0} {$i < $::numcols} {incr i} {lappend ::idxlist $i}
+
+  # Column names in UTF-8
+  do_test $test.1 {
+    set cnamelist [list]
+    foreach i $idxlist {lappend cnamelist [sqlite3_column_name $STMT $i]} 
+    set cnamelist
+  } $names
+
+  # Column names in UTF-16
+  ifcapable {utf16} {
+    do_test $test.2 {
+      set cnamelist [list]
+      foreach i $idxlist {
+        lappend cnamelist [utf8 [sqlite3_column_name16 $STMT $i]]
+      }
+      set cnamelist
+    } $names
+  }
+
+  # Column names in UTF-8
+  do_test $test.3 {
+    set cnamelist [list]
+    foreach i $idxlist {lappend cnamelist [sqlite3_column_name $STMT $i]} 
+    set cnamelist
+  } $names
+
+  # Column names in UTF-16
+  ifcapable {utf16} {
+    do_test $test.4 {
+      set cnamelist [list]
+      foreach i $idxlist {
+        lappend cnamelist [utf8 [sqlite3_column_name16 $STMT $i]]
+      }
+      set cnamelist
+    } $names
+  }
+
+  # Column names in UTF-8
+  do_test $test.5 {
+    set cnamelist [list]
+    foreach i $idxlist {lappend cnamelist [sqlite3_column_decltype $STMT $i]} 
+    set cnamelist
+  } $decltypes
+
+  # Column declaration types in UTF-16
+  ifcapable {utf16} {
+    do_test $test.6 {
+      set cnamelist [list]
+      foreach i $idxlist {
+        lappend cnamelist [utf8 [sqlite3_column_decltype16 $STMT $i]]
+      }
+      set cnamelist
+    } $decltypes
+  }
+
+
+  # Test some out of range conditions:
+  ifcapable {utf16} {
+    do_test $test.7 {
+      list \
+        [sqlite3_column_name $STMT -1] \
+        [sqlite3_column_name16 $STMT -1] \
+        [sqlite3_column_decltype $STMT -1] \
+        [sqlite3_column_decltype16 $STMT -1] \
+        [sqlite3_column_name $STMT $numcols] \
+        [sqlite3_column_name16 $STMT $numcols] \
+        [sqlite3_column_decltype $STMT $numcols] \
+        [sqlite3_column_decltype16 $STMT $numcols]
+    } {{} {} {} {} {} {} {} {}}
+  }
+} 
+
+# This proc is used to test the following API calls:
+#
+# sqlite3_column_origin_name
+# sqlite3_column_origin_name16
+# sqlite3_column_table_name
+# sqlite3_column_table_name16
+# sqlite3_column_database_name
+# sqlite3_column_database_name16
+#
+# $STMT is a compiled SQL statement. $test is a prefix
+# to use for test names within this proc. $names is a list
+# of the column names that should be returned by $STMT.
+# $decltypes is a list of column declaration types for $STMT.
+#
+# Example:
+#
+# set STMT [sqlite3_prepare "SELECT 1, 2, 2;" -1 DUMMY]
+# check_header test1.1 {1 2 3} {"" "" ""}
+#
+proc check_origin_header {STMT test dbs tables cols} {
+  # If sqlite3_column_origin_name() and friends are not compiled into
+  # this build, this proc is a no-op.
+  ifcapable columnmetadata {
+    # Use the return value of sqlite3_column_count() to build
+    # a list of column indexes. i.e. If sqlite3_column_count
+    # is 3, build the list {0 1 2}.
+    set ::idxlist [list]
+    set ::numcols [sqlite3_column_count $STMT]
+    for {set i 0} {$i < $::numcols} {incr i} {lappend ::idxlist $i}
+  
+    # Database names in UTF-8
+    do_test $test.8 {
+      set cnamelist [list]
+      foreach i $idxlist {
+        lappend cnamelist [sqlite3_column_database_name $STMT $i]
+      } 
+      set cnamelist
+    } $dbs
+  
+    # Database names in UTF-16
+    ifcapable {utf16} {
+      do_test $test.9 {
+        set cnamelist [list]
+        foreach i $idxlist {
+          lappend cnamelist [utf8 [sqlite3_column_database_name16 $STMT $i]]
+        }
+        set cnamelist
+      } $dbs
+    }
+  
+    # Table names in UTF-8
+    do_test $test.10 {
+      set cnamelist [list]
+      foreach i $idxlist {
+        lappend cnamelist [sqlite3_column_table_name $STMT $i]
+      } 
+      set cnamelist
+    } $tables
+  
+    # Table names in UTF-16
+    ifcapable {utf16} {
+      do_test $test.11 {
+        set cnamelist [list]
+        foreach i $idxlist {
+          lappend cnamelist [utf8 [sqlite3_column_table_name16 $STMT $i]]
+        }
+        set cnamelist
+      } $tables
+    }
+  
+    # Origin names in UTF-8
+    do_test $test.12 {
+      set cnamelist [list]
+      foreach i $idxlist {
+        lappend cnamelist [sqlite3_column_origin_name $STMT $i]
+      } 
+      set cnamelist
+    } $cols
+  
+    # Origin declaration types in UTF-16
+    ifcapable {utf16} {
+      do_test $test.13 {
+        set cnamelist [list]
+        foreach i $idxlist {
+          lappend cnamelist [utf8 [sqlite3_column_origin_name16 $STMT $i]]
+        }
+        set cnamelist
+      } $cols
+    }
+  }
+}
+
+# This proc is used to test the following APIs:
+#
+# sqlite3_data_count
+# sqlite3_column_type
+# sqlite3_column_int
+# sqlite3_column_text
+# sqlite3_column_text16
+# sqlite3_column_double
+#
+# $STMT is a compiled SQL statement for which the previous call 
+# to sqlite3_step returned SQLITE_ROW. $test is a prefix to use 
+# for test names within this proc. $types is a list of the 
+# manifest types for the current row. $ints, $doubles and $strings
+# are lists of the integer, real and string representations of
+# the values in the current row.
+#
+# Example:
+#
+# set STMT [sqlite3_prepare "SELECT 'hello', 1.1, NULL" -1 DUMMY]
+# sqlite3_step $STMT
+# check_data test1.2 {TEXT REAL NULL} {0 1 0} {0 1.1 0} {hello 1.1 {}}
+#
+proc check_data {STMT test types ints doubles strings} {
+
+  # Use the return value of sqlite3_column_count() to build
+  # a list of column indexes. i.e. If sqlite3_column_count
+  # is 3, build the list {0 1 2}.
+  set ::idxlist [list]
+  set numcols [sqlite3_data_count $STMT]
+  for {set i 0} {$i < $numcols} {incr i} {lappend ::idxlist $i}
+
+# types
+do_test $test.1 {
+  set types [list]
+  foreach i $idxlist {
+    set x [sqlite3_column_type $STMT $i]
+    # EVIDENCE-OF: R-12793-43283 Every value in SQLite has one of five
+    # fundamental datatypes: 64-bit signed integer 64-bit IEEE floating
+    # point number string BLOB NULL
+    if {[lsearch {INTEGER FLOAT TEXT BLOB NULL} $x]<0} {
+      set types ERROR
+      break
+    } else {
+      lappend types $x
+    }
+  }
+  set types
+} $types
+ 
+
+# Integers
+do_test $test.2 {
+  set ints [list]
+  foreach i $idxlist {lappend ints [sqlite3_column_int64 $STMT $i]}
+  set ints
+} $ints
+
+# bytes
+set lens [list]
+foreach i $::idxlist {
+  lappend lens [string length [lindex $strings $i]]
+}
+do_test $test.3 {
+  set bytes [list]
+  set lens [list]
+  foreach i $idxlist {
+    lappend bytes [sqlite3_column_bytes $STMT $i]
+  }
+  set bytes
+} $lens
+
+# bytes16
+ifcapable {utf16} {
+  set lens [list]
+  foreach i $::idxlist {
+    lappend lens [expr 2 * [string length [lindex $strings $i]]]
+  }
+  do_test $test.4 {
+    set bytes [list]
+    set lens [list]
+    foreach i $idxlist {
+      lappend bytes [sqlite3_column_bytes16 $STMT $i]
+    }
+    set bytes
+  } $lens
+}
+
+# Blob
+do_test $test.5 {
+  set utf8 [list]
+  foreach i $idxlist {lappend utf8 [sqlite3_column_blob $STMT $i]}
+  set utf8
+} $strings
+
+# UTF-8
+do_test $test.6 {
+  set utf8 [list]
+  foreach i $idxlist {lappend utf8 [sqlite3_column_text $STMT $i]}
+  set utf8
+} $strings
+
+# Floats
+do_test $test.7 {
+  set utf8 [list]
+  foreach i $idxlist {lappend utf8 [sqlite3_column_double $STMT $i]}
+  set utf8
+} $doubles
+
+# UTF-16
+ifcapable {utf16} {
+  do_test $test.8 {
+    set utf8 [list]
+    foreach i $idxlist {lappend utf8 [utf8 [sqlite3_column_text16 $STMT $i]]}
+    set utf8
+  } $strings
+}
+
+# Integers
+do_test $test.9 {
+  set ints [list]
+  foreach i $idxlist {lappend ints [sqlite3_column_int $STMT $i]}
+  set ints
+} $ints
+
+# Floats
+do_test $test.10 {
+  set utf8 [list]
+  foreach i $idxlist {lappend utf8 [sqlite3_column_double $STMT $i]}
+  set utf8
+} $doubles
+
+# UTF-8
+do_test $test.11 {
+  set utf8 [list]
+  foreach i $idxlist {lappend utf8 [sqlite3_column_text $STMT $i]}
+  set utf8
+} $strings
+
+# Types
+do_test $test.12 {
+  set types [list]
+  foreach i $idxlist {lappend types [sqlite3_column_type $STMT $i]}
+  set types
+} $types
+
+# Test that an out of range request returns the equivalent of NULL
+do_test $test.13 {
+  sqlite3_column_int $STMT -1
+} {0}
+do_test $test.13 {
+  sqlite3_column_text $STMT -1
+} {}
+
+}
+
+ifcapable !floatingpoint {
+  finish_test
+  return
+}
+
+do_test capi3-5.0 {
+  execsql {
+    CREATE TABLE t1(a VARINT, b BLOB, c VARCHAR(16));
+    INSERT INTO t1 VALUES(1, 2, 3);
+    INSERT INTO t1 VALUES('one', 'two', NULL);
+    INSERT INTO t1 VALUES(1.2, 1.3, 1.4);
+  }
+  set sql "SELECT * FROM t1"
+  set STMT [sqlite3_prepare $DB $sql -1 TAIL]
+  sqlite3_column_count $STMT
+} 3
+
+check_header $STMT capi3-5.1 {a b c} {VARINT BLOB VARCHAR(16)}
+check_origin_header $STMT capi3-5.1 {main main main} {t1 t1 t1} {a b c}
+do_test capi3-5.2 {
+  sqlite3_step $STMT
+} SQLITE_ROW
+
+check_header $STMT capi3-5.3 {a b c} {VARINT BLOB VARCHAR(16)}
+check_origin_header $STMT capi3-5.3 {main main main} {t1 t1 t1} {a b c}
+check_data $STMT capi3-5.4 {INTEGER INTEGER TEXT} {1 2 3} {1.0 2.0 3.0} {1 2 3}
+
+do_test capi3-5.5 {
+  sqlite3_step $STMT
+} SQLITE_ROW
+
+check_header $STMT capi3-5.6 {a b c} {VARINT BLOB VARCHAR(16)}
+check_origin_header $STMT capi3-5.6 {main main main} {t1 t1 t1} {a b c}
+check_data $STMT capi3-5.7 {TEXT TEXT NULL} {0 0 0} {0.0 0.0 0.0} {one two {}}
+
+do_test capi3-5.8 {
+  sqlite3_step $STMT
+} SQLITE_ROW
+
+check_header $STMT capi3-5.9 {a b c} {VARINT BLOB VARCHAR(16)}
+check_origin_header $STMT capi3-5.9 {main main main} {t1 t1 t1} {a b c}
+check_data $STMT capi3-5.10 {FLOAT FLOAT TEXT} {1 1 1} {1.2 1.3 1.4} {1.2 1.3 1.4}
+
+do_test capi3-5.11 {
+  sqlite3_step $STMT
+} SQLITE_DONE
+
+do_test capi3-5.12 {
+  sqlite3_finalize $STMT
+} SQLITE_OK
+
+do_test capi3-5.20 {
+  set sql "SELECT a, sum(b), max(c) FROM t1 GROUP BY a"
+  set STMT [sqlite3_prepare $DB $sql -1 TAIL]
+  sqlite3_column_count $STMT
+} 3
+
+check_header $STMT capi3-5.21 {a sum(b) max(c)} {VARINT {} {}}
+check_origin_header $STMT capi3-5.22 {main {} {}} {t1 {} {}} {a {} {}}
+do_test capi3-5.23 {
+  sqlite3_finalize $STMT
+} SQLITE_OK
+
+do_test capi3-5.30 {
+  set sql "SELECT a AS x, sum(b) AS y, max(c) AS z FROM t1 AS m GROUP BY x"
+  set STMT [sqlite3_prepare $DB $sql -1 TAIL]
+  sqlite3_column_count $STMT
+} 3
+
+check_header $STMT capi3-5.31 {x y z} {VARINT {} {}}
+check_origin_header $STMT capi3-5.32 {main {} {}} {t1 {} {}} {a {} {}}
+do_test capi3-5.33 {
+  sqlite3_finalize $STMT
+} SQLITE_OK
+
+# 2018-01-09:  If a column is the last token if a string, the column name
+# was not being set correctly, due to changes in check-in
+# https://sqlite.org/src/info/0fdf97efe5df7455
+#
+# This problem was detected by the community during beta-testing.
+#
+do_test capi3-5.34 {
+  set STMT [sqlite3_prepare $DB {SELECT :a, :b} -1 TAIL]
+  sqlite3_column_count $STMT
+} 2
+check_header $STMT capi-5.35 {:a :b} {{} {}}
+sqlite3_finalize $STMT
+
+set ::ENC [execsql {pragma encoding}]
+db close
+
+do_test capi3-6.0 {
+  sqlite3 db test.db
+  set DB [sqlite3_connection_pointer db]
+  if {[sqlite3 -has-codec]==0} { sqlite3_key $DB xyzzy }
+  set sql {SELECT a FROM t1 order by rowid}
+  set STMT [sqlite3_prepare $DB $sql -1 TAIL]
+  expr 0
+} {0}
+do_test capi3-6.1 {
+  db cache flush
+  sqlite3_close $DB
+} {SQLITE_BUSY}
+
+# 6.2 and 6.3 used to return SQLITE_ERROR and SQLITE_SCHEMA, respectively.
+# But since attempting to close a connection no longer resets the internal
+# schema and expires all statements, this is no longer the case.
+do_test capi3-6.2 {
+  sqlite3_step $STMT
+} {SQLITE_ROW}
+#check_data $STMT capi3-6.3 {INTEGER} {1} {1.0} {1}
+do_test capi3-6.3 {
+  sqlite3_finalize $STMT
+} {SQLITE_OK}
+
+if {[clang_sanitize_address]==0} {
+  do_test capi3-6.4-misuse {
+    db cache flush
+    sqlite3_close $DB
+  } {SQLITE_OK}
+}
+db close
+
+# This procedure sets the value of the file-format in file 'test.db'
+# to $newval. Also, the schema cookie is incremented.
+# 
+proc set_file_format {newval} {
+  hexio_write test.db 44 [hexio_render_int32 $newval]
+  set schemacookie [hexio_get_int [hexio_read test.db 40 4]]
+  incr schemacookie
+  hexio_write test.db 40 [hexio_render_int32 $schemacookie]
+  return {}
+}
+
+# This procedure returns the value of the file-format in file 'test.db'.
+# 
+proc get_file_format {{fname test.db}} {
+  return [hexio_get_int [hexio_read $fname 44 4]]
+}
+
+if {![sqlite3 -has-codec]} {
+  # Test what happens when the library encounters a newer file format.
+  do_test capi3-7.1 {
+    set_file_format 5
+  } {}
+  do_test capi3-7.2 {
+    catch { sqlite3 db test.db }
+    catchsql {
+      SELECT * FROM sqlite_master;
+    }
+  } {1 {unsupported file format}}
+  db close
+}
+
+if {![sqlite3 -has-codec]} {
+  # Now test that the library correctly handles bogus entries in the
+  # sqlite_master table (schema corruption).
+  do_test capi3-8.1 {
+    forcedelete test.db test.db-journal
+    sqlite3 db test.db
+    execsql {
+      CREATE TABLE t1(a);
+    }
+    db close
+  } {}
+  do_test capi3-8.2 {
+    sqlite3 db test.db
+    sqlite3_db_config db DEFENSIVE 0
+    execsql {
+      PRAGMA writable_schema=ON;
+      INSERT INTO sqlite_master VALUES(NULL,NULL,NULL,NULL,NULL);
+    }
+    db close
+  } {}
+  do_test capi3-8.3 {
+    catch { sqlite3 db test.db }
+    catchsql {
+      SELECT * FROM sqlite_master;
+    }
+  } {1 {malformed database schema (?)}}
+  do_test capi3-8.4 {
+    # Build a 5-field row record. The first field is a string 'table', and
+    # subsequent fields are all NULL.
+    db close
+    forcedelete test.db test.db-journal
+    sqlite3 db test.db
+    sqlite3_db_config db DEFENSIVE 0
+    execsql {
+      CREATE TABLE t1(a);
+      PRAGMA writable_schema=ON;
+      INSERT INTO sqlite_master VALUES('table',NULL,NULL,NULL,NULL);
+    }
+    db close
+  } {};
+  do_test capi3-8.5 {
+    catch { sqlite3 db test.db }
+    catchsql {
+      SELECT * FROM sqlite_master;
+    }
+  } {1 {malformed database schema (?)}}
+  db close
+}
+forcedelete test.db
+forcedelete test.db-journal
+
+
+# Test the english language string equivalents for sqlite error codes
+set code2english [list \
+SQLITE_OK         {not an error} \
+SQLITE_ERROR      {SQL logic error} \
+SQLITE_PERM       {access permission denied} \
+SQLITE_ABORT      {query aborted} \
+SQLITE_BUSY       {database is locked} \
+SQLITE_LOCKED     {database table is locked} \
+SQLITE_NOMEM      {out of memory} \
+SQLITE_READONLY   {attempt to write a readonly database} \
+SQLITE_INTERRUPT  {interrupted} \
+SQLITE_IOERR      {disk I/O error} \
+SQLITE_CORRUPT    {database disk image is malformed} \
+SQLITE_FULL       {database or disk is full} \
+SQLITE_CANTOPEN   {unable to open database file} \
+SQLITE_SCHEMA     {database schema has changed} \
+SQLITE_CONSTRAINT {constraint failed} \
+SQLITE_MISMATCH   {datatype mismatch} \
+SQLITE_MISUSE     {bad parameter or other API misuse} \
+SQLITE_AUTH       {authorization denied} \
+SQLITE_RANGE      {column index out of range} \
+SQLITE_NOTADB     {file is not a database} \
+unknownerror      {unknown error} \
+]
+
+set test_number 1
+foreach {code english} $code2english {
+  do_test capi3-9.$test_number "sqlite3_test_errstr $code" $english
+  incr test_number
+}
+
+# Test the error message when a "real" out of memory occurs.
+if { [permutation] != "nofaultsim" } {
+  do_test capi3-10-1 {
+    sqlite3 db test.db
+    set DB [sqlite3_connection_pointer db]
+    sqlite3_memdebug_fail 1
+    catchsql {
+      select * from sqlite_master;
+    }
+  } {1 {out of memory}}
+  do_test capi3-10-2 {
+    sqlite3_errmsg $::DB
+  } {out of memory}
+  ifcapable {utf16} {
+    do_test capi3-10-3 {
+      utf8 [sqlite3_errmsg16 $::DB]
+    } {out of memory}
+  }
+  db close
+  sqlite3_memdebug_fail -1
+  do_test capi3-10-4 {
+    sqlite3 db test.db
+    set DB [sqlite3_connection_pointer db]
+    sqlite3_memdebug_fail 1
+    catchsql {
+      select * from sqlite_master where rowid>5;
+    }
+  } {1 {out of memory}}
+  do_test capi3-10-5 {
+    sqlite3_errmsg $::DB
+  } {out of memory}
+  ifcapable {utf16} {
+    do_test capi3-10-6 {
+      utf8 [sqlite3_errmsg16 $::DB]
+    } {out of memory}
+  }
+  db close
+  sqlite3_memdebug_fail -1
+}
+
+# The following tests - capi3-11.* - test that a COMMIT or ROLLBACK
+# statement issued while there are still outstanding VMs that are part of
+# the transaction fails.
+sqlite3 db test.db
+set DB [sqlite3_connection_pointer db]
+sqlite_register_test_function $DB func
+do_test capi3-11.1 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, 'int');
+    INSERT INTO t1 VALUES(2, 'notatype');
+  }
+} {}
+do_test capi3-11.1.1 {
+  sqlite3_get_autocommit $DB
+} 0
+do_test capi3-11.2 {
+  set STMT [sqlite3_prepare $DB "SELECT func(b, a) FROM t1" -1 TAIL]
+  sqlite3_step $STMT
+} {SQLITE_ROW}
+
+# As of 3.6.5 a COMMIT is OK during while a query is still running -
+# as long as it is a read-only query and not an incremental BLOB write.
+#
+do_test capi3-11.3.1 {
+  catchsql {
+    COMMIT;
+  }
+} {0 {}}
+do_test capi3-11.3.2 {
+  sqlite3_extended_errcode $DB
+} {SQLITE_OK}
+do_test capi3-11.3.3 {
+  sqlite3_get_autocommit $DB
+} 1
+do_test capi3-11.3.4 {
+  db eval {PRAGMA lock_status}
+} {main shared temp closed}
+
+do_test capi3-11.4 {
+  sqlite3_step $STMT
+} {SQLITE_ERROR}
+do_test capi3-11.5 {
+  sqlite3_finalize $STMT
+} {SQLITE_ERROR}
+do_test capi3-11.6 {
+  catchsql {
+    SELECT * FROM t1;
+  }
+} {0 {1 int 2 notatype}}
+do_test capi3-11.7 {
+  sqlite3_get_autocommit $DB
+} 1
+do_test capi3-11.8 {
+  execsql {
+    CREATE TABLE t2(a);
+    INSERT INTO t2 VALUES(1);
+    INSERT INTO t2 VALUES(2);
+    BEGIN;
+    INSERT INTO t2 VALUES(3);
+  }
+} {}
+do_test capi3-11.8.1 {
+  sqlite3_get_autocommit $DB
+} 0
+do_test capi3-11.9 {
+  set STMT [sqlite3_prepare $DB "SELECT a FROM t2" -1 TAIL]
+  sqlite3_step $STMT
+} {SQLITE_ROW}
+do_test capi3-11.9.1 {
+  sqlite3_get_autocommit $DB
+} 0
+do_test capi3-11.9.2 {
+  catchsql {
+    ROLLBACK;
+  }
+} {0 {}}
+do_test capi3-11.9.3 {
+  sqlite3_get_autocommit $DB
+} 1
+do_test capi3-11.10 {
+  sqlite3_step $STMT
+} {SQLITE_ROW}
+do_test capi3-11.11 {
+  sqlite3_step $STMT
+} {SQLITE_DONE}
+ifcapable !autoreset {
+  do_test capi3-11.12armor {
+    sqlite3_step $STMT
+    sqlite3_step $STMT
+  } {SQLITE_MISUSE}
+} else {
+  do_test capi3-11.12 {
+    sqlite3_step $STMT
+    sqlite3_step $STMT
+  } {SQLITE_ROW}
+}
+do_test capi3-11.13 {
+  sqlite3_finalize $STMT
+} {SQLITE_OK}
+do_test capi3-11.14 {
+  execsql {
+    SELECT a FROM t2;
+  }
+} {1 2}
+do_test capi3-11.14.1 {
+  sqlite3_get_autocommit $DB
+} 1
+do_test capi3-11.15 {
+  catchsql {
+    ROLLBACK;
+  }
+} {1 {cannot rollback - no transaction is active}}
+do_test capi3-11.15.1 {
+  sqlite3_get_autocommit $DB
+} 1
+do_test capi3-11.16 {
+  execsql {
+    SELECT a FROM t2;
+  }
+} {1 2}
+
+# Sanity check on the definition of 'outstanding VM'. This means any VM
+# that has had sqlite3_step() called more recently than sqlite3_finalize() or
+# sqlite3_reset(). So a VM that has just been prepared or reset does not
+# count as an active VM.
+do_test capi3-11.17 {
+  execsql {
+    BEGIN;
+  }
+} {}
+do_test capi3-11.18 {
+  set STMT [sqlite3_prepare $DB "SELECT a FROM t1" -1 TAIL]
+  catchsql {
+    COMMIT;
+  }
+} {0 {}}
+do_test capi3-11.19 {
+  sqlite3_step $STMT
+} {SQLITE_ROW}
+do_test capi3-11.20 {
+  catchsql {
+    BEGIN;
+    COMMIT;
+  }
+} {0 {}}
+do_test capi3-11.20 {
+  sqlite3_reset $STMT
+  catchsql {
+    COMMIT;
+  }
+} {1 {cannot commit - no transaction is active}}
+do_test capi3-11.21 {
+  sqlite3_finalize $STMT
+} {SQLITE_OK}
+
+# The following tests - capi3-12.* - check that its Ok to start a
+# transaction while other VMs are active, and that its Ok to execute
+# atomic updates in the same situation 
+#
+do_test capi3-12.1 {
+  set STMT [sqlite3_prepare $DB "SELECT a FROM t2" -1 TAIL]
+  sqlite3_step $STMT
+} {SQLITE_ROW}
+do_test capi3-12.2 {
+  catchsql {
+    INSERT INTO t1 VALUES(3, NULL);
+  }
+} {0 {}}
+do_test capi3-12.3 {
+  catchsql {
+    INSERT INTO t2 VALUES(4);
+  }
+} {0 {}}
+do_test capi3-12.4 {
+  catchsql {
+    BEGIN;
+    INSERT INTO t1 VALUES(4, NULL);
+  }
+} {0 {}}
+do_test capi3-12.5 {
+  sqlite3_step $STMT
+} {SQLITE_ROW}
+do_test capi3-12.5.1 {
+  sqlite3_step $STMT
+} {SQLITE_ROW}
+do_test capi3-12.6 {
+  sqlite3_step $STMT
+} {SQLITE_DONE}
+do_test capi3-12.7 {
+  sqlite3_finalize $STMT
+} {SQLITE_OK}
+do_test capi3-12.8 {
+  execsql {
+    COMMIT;
+    SELECT a FROM t1;
+  }
+} {1 2 3 4}
+
+# Test cases capi3-13.* test the sqlite3_clear_bindings() and 
+# sqlite3_sleep APIs.
+#
+if {[llength [info commands sqlite3_clear_bindings]]>0} {
+  do_test capi3-13.1 {
+    execsql {
+      DELETE FROM t1;
+    }
+    set STMT [sqlite3_prepare $DB "INSERT INTO t1 VALUES(?, ?)" -1 TAIL]
+    sqlite3_step $STMT
+  } {SQLITE_DONE}
+  do_test capi3-13.2 {
+    sqlite3_reset $STMT
+    sqlite3_bind_text $STMT 1 hello 5
+    sqlite3_bind_text $STMT 2 world 5
+    sqlite3_step $STMT
+  } {SQLITE_DONE}
+  do_test capi3-13.3 {
+    sqlite3_reset $STMT
+    sqlite3_clear_bindings $STMT
+    sqlite3_step $STMT
+  } {SQLITE_DONE}
+  do_test capi3-13-4 {
+    sqlite3_finalize $STMT
+    execsql {
+      SELECT * FROM t1;
+    }
+  } {{} {} hello world {} {}}
+}
+if {[llength [info commands sqlite3_sleep]]>0} {
+  do_test capi3-13-5 {
+    set ms [sqlite3_sleep 80]
+    expr {$ms==80 || $ms==1000}
+  } {1}
+}
+
+# Ticket #1219:  Make sure binding APIs can handle a NULL pointer.
+# 
+if {[clang_sanitize_address]==0} {
+  do_test capi3-14.1-misuse {
+    set rc [catch {sqlite3_bind_text 0 1 hello 5} msg]
+      lappend rc $msg
+  } {1 SQLITE_MISUSE}
+}
+
+# Ticket #1650:  Honor the nBytes parameter to sqlite3_prepare.
+#
+do_test capi3-15.1 {
+  set sql {SELECT * FROM t2}
+  set nbytes [string length $sql]
+  append sql { WHERE a==1}
+  set STMT [sqlite3_prepare $DB $sql $nbytes TAIL]
+  sqlite3_step $STMT
+  sqlite3_column_int $STMT 0
+} {1}
+do_test capi3-15.2 {
+  sqlite3_step $STMT
+  sqlite3_column_int $STMT 0
+} {2}
+do_test capi3-15.3 {
+  sqlite3_finalize $STMT
+} {SQLITE_OK}
+do_test capi3-15.4 {
+  #        123456789 1234567
+  set sql {SELECT 1234567890}
+  set STMT [sqlite3_prepare $DB $sql 8 TAIL]
+  sqlite3_step $STMT
+  set v1 [sqlite3_column_int $STMT 0]
+  sqlite3_finalize $STMT
+  set v1
+} {1}
+do_test capi3-15.5 {
+  #        123456789 1234567
+  set sql {SELECT 1234567890}
+  set STMT [sqlite3_prepare $DB $sql 9 TAIL]
+  sqlite3_step $STMT
+  set v1 [sqlite3_column_int $STMT 0]
+  sqlite3_finalize $STMT
+  set v1
+} {12}
+do_test capi3-15.6 {
+  #        123456789 1234567
+  set sql {SELECT 1234567890}
+  set STMT [sqlite3_prepare $DB $sql 12 TAIL]
+  sqlite3_step $STMT
+  set v1 [sqlite3_column_int $STMT 0]
+  sqlite3_finalize $STMT
+  set v1
+} {12345}
+do_test capi3-15.7 {
+  #        123456789 1234567
+  set sql {SELECT 12.34567890}
+  set STMT [sqlite3_prepare $DB $sql 12 TAIL]
+  sqlite3_step $STMT
+  set v1 [sqlite3_column_double $STMT 0]
+  sqlite3_finalize $STMT
+  set v1
+} {12.34}
+do_test capi3-15.8 {
+  #        123456789 1234567
+  set sql {SELECT 12.34567890}
+  set STMT [sqlite3_prepare $DB $sql 14 TAIL]
+  sqlite3_step $STMT
+  set v1 [sqlite3_column_double $STMT 0]
+  sqlite3_finalize $STMT
+  set v1
+} {12.3456}
+
+# Make sure code is always generated even if an IF EXISTS or 
+# IF NOT EXISTS clause is present that the table does not or
+# does exists.  That way we will always have a prepared statement
+# to expire when the schema changes.
+#
+do_test capi3-16.1 {
+  set sql {DROP TABLE IF EXISTS t3}
+  set STMT [sqlite3_prepare $DB $sql -1 TAIL]
+  sqlite3_finalize $STMT
+  expr {$STMT!=""}
+} {1}
+do_test capi3-16.2 {
+  set sql {CREATE TABLE IF NOT EXISTS t1(x,y)}
+  set STMT [sqlite3_prepare $DB $sql -1 TAIL]
+  sqlite3_finalize $STMT
+  expr {$STMT!=""}
+} {1}
+
+# But still we do not generate code if there is no SQL
+#
+do_test capi3-16.3 {
+  set STMT [sqlite3_prepare $DB {} -1 TAIL]
+  sqlite3_finalize $STMT
+  expr {$STMT==""}
+} {1}
+do_test capi3-16.4 {
+  set STMT [sqlite3_prepare $DB {;} -1 TAIL]
+  sqlite3_finalize $STMT
+  expr {$STMT==""}
+} {1}
+
+# Ticket #2426:  Misuse of sqlite3_column_* by calling it after
+# a sqlite3_reset should be harmless.
+#
+do_test capi3-17.1 {
+  set STMT [sqlite3_prepare $DB {SELECT * FROM t2} -1 TAIL]
+  sqlite3_step $STMT
+  sqlite3_column_int $STMT 0
+} {1}
+do_test capi3-17.2 {
+  sqlite3_reset $STMT
+  sqlite3_column_int $STMT 0
+} {0}
+do_test capi3-17.3 {
+  sqlite3_finalize $STMT
+} {SQLITE_OK}
+
+# Verify that sqlite3_step() fails with an SQLITE_SCHEMA error
+# when the statement is prepared with sqlite3_prepare() (not
+# sqlite3_prepare_v2()) and the schema has changed.
+#
+do_test capi3-18.1 {
+  set STMT [sqlite3_prepare db {SELECT * FROM t2} -1 TAIL]
+  sqlite3 db2 test.db
+  db2 eval {CREATE TABLE t3(x)}
+  db2 close
+  sqlite3_step $STMT
+} {SQLITE_ERROR}
+do_test capi3-18.2 {
+  sqlite3_reset $STMT
+  sqlite3_errcode db
+} {SQLITE_SCHEMA}
+do_test capi3-18.3 {
+  sqlite3_errmsg db
+} {database schema has changed}
+# The error persist on retry when sqlite3_prepare() has been used.
+do_test capi3-18.4 {
+  sqlite3_step $STMT
+} {SQLITE_ERROR}
+do_test capi3-18.5 {
+  sqlite3_reset $STMT
+  sqlite3_errcode db
+} {SQLITE_SCHEMA}
+do_test capi3-18.6 {
+  sqlite3_errmsg db
+} {database schema has changed}
+sqlite3_finalize $STMT
+
+# Ticket #3134.  Prepare a statement with an nBytes parameter of 0.
+# Make sure this works correctly and does not reference memory out of
+# range.
+#
+do_test capi3-19.1 {
+  sqlite3_prepare_tkt3134 db
+} {}
+
+# Test that calling sqlite3_column_blob() on a TEXT value does not change
+# the return type of subsequent calls to sqlite3_column_type().
+#
+do_execsql_test 20.1 {
+  CREATE TABLE t4(x);
+  INSERT INTO t4 VALUES('abcdefghij');
+}
+do_test 20.2 {
+  set stmt [sqlite3_prepare db "SELECT * FROM t4" -1 dummy]
+  sqlite3_step $stmt
+} {SQLITE_ROW}
+do_test 20.3 { sqlite3_column_type $stmt 0 } {TEXT}
+do_test 20.4 { sqlite3_column_blob $stmt 0 } {abcdefghij}
+do_test 20.5 { sqlite3_column_type $stmt 0 } {TEXT}
+do_test 20.6 { sqlite3_finalize $stmt } SQLITE_OK
+
+
+# Tests of the interface when no VFS is registered.
+#
+if {![info exists tester_do_binarylog]} {
+  db close
+  vfs_unregister_all
+  do_test capi3-20.1 {
+    sqlite3_sleep 100
+  } {0}
+  vfs_reregister_all
+}
+
+finish_test
diff --git a/test/capi3b.test b/test/capi3b.test
new file mode 100644
index 0000000000000000000000000000000000000000..72bbbaf65678938bcfb9fe072c55f675f00db2b8
--- /dev/null
+++ b/test/capi3b.test
@@ -0,0 +1,145 @@
+# 2004 September 2
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script testing the callback-free C/C++ API and in
+# particular the behavior of sqlite3_step() when trying to commit
+# with lock contention.
+#
+# $Id: capi3b.test,v 1.4 2007/08/10 19:46:14 drh Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+
+# These tests depend on the pager holding changes in cache
+# until it is time to commit.  But that won't happen if the
+# soft-heap-limit is set too low.  So disable the soft heap limit
+# for the duration of this test.
+#
+sqlite3_soft_heap_limit 0
+
+
+set DB [sqlite3_connection_pointer db]
+sqlite3 db2 test.db
+set DB2 [sqlite3_connection_pointer db2]
+
+# Create some data in the database
+#
+do_test capi3b-1.1 {
+  execsql {
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(1);
+    INSERT INTO t1 VALUES(2);
+    SELECT * FROM t1
+  }
+} {1 2}
+
+# Make sure the second database connection can see the data
+#
+do_test capi3b-1.2 {
+  execsql {
+    SELECT * FROM t1
+  } db2
+} {1 2}
+
+# First database connection acquires a shared lock
+#
+do_test capi3b-1.3 {
+  execsql {
+    BEGIN;
+    SELECT * FROM t1;
+  }
+} {1 2}
+
+# Second database connection tries to write.  The sqlite3_step()
+# function returns SQLITE_BUSY because it cannot commit.
+#
+do_test capi3b-1.4 {
+  set VM [sqlite3_prepare $DB2 {INSERT INTO t1 VALUES(3)} -1 TAIL]
+  sqlite3_step $VM
+} SQLITE_BUSY
+
+# The sqlite3_step call can be repeated multiple times.
+#
+do_test capi3b-1.5.1 {
+  sqlite3_step $VM
+} SQLITE_BUSY
+do_test capi3b-1.5.2 {
+  sqlite3_step $VM
+} SQLITE_BUSY
+
+# The first connection closes its transaction.  This allows the second
+# connections sqlite3_step to succeed.
+#
+do_test capi3b-1.6 {
+  execsql COMMIT
+  sqlite3_step $VM
+} SQLITE_DONE
+do_test capi3b-1.7 {
+  sqlite3_finalize $VM
+} SQLITE_OK
+do_test capi3b-1.8 {
+  execsql {SELECT * FROM t1} db2
+} {1 2 3}
+do_test capi3b-1.9 {
+  execsql {SELECT * FROM t1}
+} {1 2 3}
+
+# Start doing a SELECT with one connection.  This gets a SHARED lock.
+# Then do an INSERT with the other connection.  The INSERT should
+# not be able to complete until the SELECT finishes.
+#
+do_test capi3b-2.1 {
+  set VM1 [sqlite3_prepare $DB {SELECT * FROM t1} -1 TAIL]
+  sqlite3_step $VM1
+} SQLITE_ROW
+do_test capi3b-2.2 {
+  sqlite3_column_text $VM1 0
+} 1
+do_test capi3b-2.3 {
+  set VM2 [sqlite3_prepare $DB2 {INSERT INTO t1 VALUES(4)} -1 TAIL]
+  sqlite3_step $VM2
+} SQLITE_BUSY
+do_test capi3b-2.4 {
+  sqlite3_step $VM1
+} SQLITE_ROW
+do_test capi3b-2.5 {
+  sqlite3_column_text $VM1 0
+} 2
+do_test capi3b-2.6 {
+  sqlite3_step $VM2
+} SQLITE_BUSY
+do_test capi3b-2.7 {
+  sqlite3_step $VM1
+} SQLITE_ROW
+do_test capi3b-2.8 {
+  sqlite3_column_text $VM1 0
+} 3
+do_test capi3b-2.9 {
+  sqlite3_step $VM2
+} SQLITE_BUSY
+do_test capi3b-2.10 {
+  sqlite3_step $VM1
+} SQLITE_DONE
+do_test capi3b-2.11 {
+  sqlite3_step $VM2
+} SQLITE_DONE
+do_test capi3b-2.12 {
+  sqlite3_finalize $VM1
+  sqlite3_finalize $VM2
+  execsql {SELECT * FROM t1}
+} {1 2 3 4}
+
+catch {db2 close}
+
+sqlite3_soft_heap_limit $cmdlinearg(soft-heap-limit)
+finish_test
diff --git a/test/capi3c.test b/test/capi3c.test
new file mode 100644
index 0000000000000000000000000000000000000000..247dbf35e520a48891a82849756ecfc12d366c55
--- /dev/null
+++ b/test/capi3c.test
@@ -0,0 +1,1401 @@
+# 2006 November 08
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  
+#
+# This is a copy of the capi3.test file that has been adapted to
+# test the new sqlite3_prepare_v2 interface.
+#
+# $Id: capi3c.test,v 1.23 2009/07/22 07:27:57 danielk1977 Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix capi3c
+
+# Do not use a codec for tests in this file, as the database file is
+# manipulated directly using tcl scripts (using the [hexio_write] command).
+#
+do_not_use_codec
+
+# Return the UTF-16 representation of the supplied UTF-8 string $str.
+# If $nt is true, append two 0x00 bytes as a nul terminator.
+proc utf16 {str {nt 1}} {
+  set r [encoding convertto unicode $str]
+  if {$nt} {
+    append r "\x00\x00"
+  }
+  return $r
+}
+
+# Return the UTF-8 representation of the supplied UTF-16 string $str. 
+proc utf8 {str} {
+  # If $str ends in two 0x00 0x00 bytes, knock these off before
+  # converting to UTF-8 using TCL.
+  binary scan $str \c* vals
+  if {[lindex $vals end]==0 && [lindex $vals end-1]==0} {
+    set str [binary format \c* [lrange $vals 0 end-2]]
+  }
+
+  set r [encoding convertfrom unicode $str]
+  return $r
+}
+
+# These tests complement those in capi2.test. They are organized
+# as follows:
+#
+# capi3c-1.*: Test sqlite3_prepare_v2 
+# capi3c-2.*: Test sqlite3_prepare16_v2 
+# capi3c-3.*: Test sqlite3_open
+# capi3c-4.*: Test sqlite3_open16
+# capi3c-5.*: Test the various sqlite3_result_* APIs
+# capi3c-6.*: Test that sqlite3_close fails if there are outstanding VMs.
+#
+
+set DB [sqlite3_connection_pointer db]
+
+do_test capi3c-1.0 {
+  sqlite3_get_autocommit $DB
+} 1
+do_test capi3c-1.1 {
+  set STMT [sqlite3_prepare_v2 $DB {SELECT name FROM sqlite_master} -1 TAIL]
+  sqlite3_finalize $STMT
+  set TAIL
+} {}
+do_test capi3c-1.2.1 {
+  sqlite3_errcode $DB
+} {SQLITE_OK}
+do_test capi3c-1.2.2 {
+  sqlite3_extended_errcode $DB
+} {SQLITE_OK}
+do_test capi3c-1.3 {
+  sqlite3_errmsg $DB
+} {not an error}
+do_test capi3c-1.4 {
+  set sql {SELECT name FROM sqlite_master;SELECT 10}
+  set STMT [sqlite3_prepare_v2 $DB $sql -1 TAIL]
+  sqlite3_finalize $STMT
+  set TAIL
+} {SELECT 10}
+do_test capi3c-1.5 {
+  set sql {SELECT namex FROM sqlite_master}
+  catch {
+    set STMT [sqlite3_prepare_v2 $DB $sql -1 TAIL]
+  }
+} {1}
+do_test capi3c-1.6.1 {
+  sqlite3_errcode $DB
+} {SQLITE_ERROR}
+do_test capi3c-1.6.2 {
+  sqlite3_extended_errcode $DB
+} {SQLITE_ERROR}
+do_test capi3c-1.7 {
+  sqlite3_errmsg $DB
+} {no such column: namex}
+
+
+ifcapable {utf16} {
+  do_test capi3c-2.1 {
+    set sql16 [utf16 {SELECT name FROM sqlite_master}]
+    set STMT [sqlite3_prepare16_v2  $DB $sql16 -1 ::TAIL]
+    sqlite3_finalize $STMT
+    utf8 $::TAIL
+  } {}
+  do_test capi3c-2.2 {
+    set sql [utf16 {SELECT name FROM sqlite_master;SELECT 10}]
+    set STMT [sqlite3_prepare16_v2  $DB $sql -1 TAIL]
+    sqlite3_finalize $STMT
+    utf8 $TAIL
+  } {SELECT 10}
+  do_test capi3c-2.3 {
+    set sql [utf16 {SELECT namex FROM sqlite_master}]
+    catch {
+      set STMT [sqlite3_prepare16_v2  $DB $sql -1 TAIL]
+    }
+  } {1}
+  do_test capi3c-2.4.1 {
+    sqlite3_errcode $DB
+  } {SQLITE_ERROR}
+  do_test capi3c-2.4.2 {
+    sqlite3_extended_errcode $DB
+  } {SQLITE_ERROR}
+  do_test capi3c-2.5 {
+    sqlite3_errmsg $DB
+  } {no such column: namex}
+
+  ifcapable schema_pragmas {
+    do_test capi3c-2.6 {
+      execsql {CREATE TABLE tablename(x)}
+      set sql16 [utf16 {PRAGMA table_info("TableName")}]
+      set STMT [sqlite3_prepare16_v2  $DB $sql16 -1 TAIL]
+      sqlite3_step $STMT
+    } SQLITE_ROW
+    do_test capi3c-2.7 {
+      sqlite3_step $STMT
+    } SQLITE_DONE
+    do_test capi3c-2.8 {
+      sqlite3_finalize $STMT
+    } SQLITE_OK
+  }
+
+} ;# endif utf16
+
+# rename sqlite3_open sqlite3_open_old
+# proc sqlite3_open {fname options} {sqlite3_open_new $fname $options}
+
+do_test capi3c-3.1 {
+  set db2 [sqlite3_open test.db {}]
+  sqlite3_errcode $db2
+} {SQLITE_OK}
+# FIX ME: Should test the db handle works.
+do_test capi3c-3.2 {
+  sqlite3_close $db2
+} {SQLITE_OK}
+do_test capi3c-3.3 {
+  catch {
+    set db2 [sqlite3_open /bogus/path/test.db {}]
+  }
+  sqlite3_errcode $db2
+} {SQLITE_CANTOPEN}
+do_test capi3c-3.4 {
+  sqlite3_errmsg $db2
+} {unable to open database file}
+do_test capi3c-3.5 {
+  sqlite3_close $db2
+} {SQLITE_OK}
+if {[clang_sanitize_address]==0} {
+  do_test capi3c-3.6.1-misuse {
+    sqlite3_close $db2
+  } {SQLITE_MISUSE}
+  do_test capi3c-3.6.2-misuse {
+    sqlite3_errmsg $db2
+  } {bad parameter or other API misuse}
+  ifcapable {utf16} {
+    do_test capi3c-3.6.3-misuse {
+      utf8 [sqlite3_errmsg16 $db2]
+    } {bad parameter or other API misuse}
+  }
+}
+
+# rename sqlite3_open ""
+# rename sqlite3_open_old sqlite3_open
+
+ifcapable {utf16} {
+do_test capi3c-4.1 {
+  set db2 [sqlite3_open16 [utf16 test.db] {}]
+  sqlite3_errcode $db2
+} {SQLITE_OK}
+# FIX ME: Should test the db handle works.
+do_test capi3c-4.2 {
+  sqlite3_close $db2
+} {SQLITE_OK}
+do_test capi3c-4.3 {
+  catch {
+    set db2 [sqlite3_open16 [utf16 /bogus/path/test.db] {}]
+  }
+  sqlite3_errcode $db2
+} {SQLITE_CANTOPEN}
+do_test capi3c-4.4 {
+  utf8 [sqlite3_errmsg16 $db2]
+} {unable to open database file}
+do_test capi3c-4.5 {
+  sqlite3_close $db2
+} {SQLITE_OK}
+} ;# utf16
+
+# This proc is used to test the following API calls:
+#
+# sqlite3_column_count
+# sqlite3_column_name
+# sqlite3_column_name16
+# sqlite3_column_decltype
+# sqlite3_column_decltype16
+#
+# $STMT is a compiled SQL statement. $test is a prefix
+# to use for test names within this proc. $names is a list
+# of the column names that should be returned by $STMT.
+# $decltypes is a list of column declaration types for $STMT.
+#
+# Example:
+#
+# set STMT [sqlite3_prepare_v2 "SELECT 1, 2, 2;" -1 DUMMY]
+# check_header test1.1 {1 2 3} {"" "" ""}
+#
+proc check_header {STMT test names decltypes} {
+
+  # Use the return value of sqlite3_column_count() to build
+  # a list of column indexes. i.e. If sqlite3_column_count
+  # is 3, build the list {0 1 2}.
+  set ::idxlist [list]
+  set ::numcols [sqlite3_column_count $STMT]
+  for {set i 0} {$i < $::numcols} {incr i} {lappend ::idxlist $i}
+
+  # Column names in UTF-8
+  do_test $test.1 {
+    set cnamelist [list]
+    foreach i $idxlist {lappend cnamelist [sqlite3_column_name $STMT $i]} 
+    set cnamelist
+  } $names
+
+  # Column names in UTF-16
+  ifcapable {utf16} {
+    do_test $test.2 {
+      set cnamelist [list]
+      foreach i $idxlist {
+        lappend cnamelist [utf8 [sqlite3_column_name16 $STMT $i]]
+      }
+      set cnamelist
+    } $names
+  }
+
+  # Column names in UTF-8
+  do_test $test.3 {
+    set cnamelist [list]
+    foreach i $idxlist {lappend cnamelist [sqlite3_column_name $STMT $i]} 
+    set cnamelist
+  } $names
+
+  # Column names in UTF-16
+  ifcapable {utf16} {
+    do_test $test.4 {
+      set cnamelist [list]
+      foreach i $idxlist {
+        lappend cnamelist [utf8 [sqlite3_column_name16 $STMT $i]]
+      }
+      set cnamelist
+    } $names
+  }
+
+  # Column names in UTF-8
+  do_test $test.5 {
+    set cnamelist [list]
+    foreach i $idxlist {lappend cnamelist [sqlite3_column_decltype $STMT $i]} 
+    set cnamelist
+  } $decltypes
+
+  # Column declaration types in UTF-16
+  ifcapable {utf16} {
+    do_test $test.6 {
+      set cnamelist [list]
+      foreach i $idxlist {
+        lappend cnamelist [utf8 [sqlite3_column_decltype16 $STMT $i]]
+      }
+      set cnamelist
+    } $decltypes
+  }
+
+
+  # Test some out of range conditions:
+  ifcapable {utf16} {
+    do_test $test.7 {
+      list \
+        [sqlite3_column_name $STMT -1] \
+        [sqlite3_column_name16 $STMT -1] \
+        [sqlite3_column_decltype $STMT -1] \
+        [sqlite3_column_decltype16 $STMT -1] \
+        [sqlite3_column_name $STMT $numcols] \
+        [sqlite3_column_name16 $STMT $numcols] \
+        [sqlite3_column_decltype $STMT $numcols] \
+        [sqlite3_column_decltype16 $STMT $numcols]
+    } {{} {} {} {} {} {} {} {}}
+  }
+} 
+
+# This proc is used to test the following API calls:
+#
+# sqlite3_column_origin_name
+# sqlite3_column_origin_name16
+# sqlite3_column_table_name
+# sqlite3_column_table_name16
+# sqlite3_column_database_name
+# sqlite3_column_database_name16
+#
+# $STMT is a compiled SQL statement. $test is a prefix
+# to use for test names within this proc. $names is a list
+# of the column names that should be returned by $STMT.
+# $decltypes is a list of column declaration types for $STMT.
+#
+# Example:
+#
+# set STMT [sqlite3_prepare_v2 "SELECT 1, 2, 2;" -1 DUMMY]
+# check_header test1.1 {1 2 3} {"" "" ""}
+#
+proc check_origin_header {STMT test dbs tables cols} {
+  # If sqlite3_column_origin_name() and friends are not compiled into
+  # this build, this proc is a no-op.
+ifcapable columnmetadata {
+
+    # Use the return value of sqlite3_column_count() to build
+    # a list of column indexes. i.e. If sqlite3_column_count
+    # is 3, build the list {0 1 2}.
+    set ::idxlist [list]
+    set ::numcols [sqlite3_column_count $STMT]
+    for {set i 0} {$i < $::numcols} {incr i} {lappend ::idxlist $i}
+  
+    # Database names in UTF-8
+    do_test $test.8 {
+      set cnamelist [list]
+      foreach i $idxlist {
+        lappend cnamelist [sqlite3_column_database_name $STMT $i]
+      } 
+      set cnamelist
+    } $dbs
+  
+    # Database names in UTF-16
+    ifcapable {utf16} {
+      do_test $test.9 {
+        set cnamelist [list]
+        foreach i $idxlist {
+          lappend cnamelist [utf8 [sqlite3_column_database_name16 $STMT $i]]
+        }
+        set cnamelist
+      } $dbs
+    }
+  
+    # Table names in UTF-8
+    do_test $test.10 {
+      set cnamelist [list]
+      foreach i $idxlist {
+        lappend cnamelist [sqlite3_column_table_name $STMT $i]
+      } 
+      set cnamelist
+    } $tables
+  
+    # Table names in UTF-16
+    ifcapable {utf16} {
+      do_test $test.11 {
+        set cnamelist [list]
+        foreach i $idxlist {
+          lappend cnamelist [utf8 [sqlite3_column_table_name16 $STMT $i]]
+        }
+        set cnamelist
+      } $tables
+    }
+  
+    # Origin names in UTF-8
+    do_test $test.12 {
+      set cnamelist [list]
+      foreach i $idxlist {
+        lappend cnamelist [sqlite3_column_origin_name $STMT $i]
+      } 
+      set cnamelist
+    } $cols
+  
+    # Origin declaration types in UTF-16
+    ifcapable {utf16} {
+      do_test $test.13 {
+        set cnamelist [list]
+        foreach i $idxlist {
+          lappend cnamelist [utf8 [sqlite3_column_origin_name16 $STMT $i]]
+        }
+        set cnamelist
+      } $cols
+    }
+  }
+}
+
+# This proc is used to test the following APIs:
+#
+# sqlite3_data_count
+# sqlite3_column_type
+# sqlite3_column_int
+# sqlite3_column_text
+# sqlite3_column_text16
+# sqlite3_column_double
+#
+# $STMT is a compiled SQL statement for which the previous call 
+# to sqlite3_step returned SQLITE_ROW. $test is a prefix to use 
+# for test names within this proc. $types is a list of the 
+# manifest types for the current row. $ints, $doubles and $strings
+# are lists of the integer, real and string representations of
+# the values in the current row.
+#
+# Example:
+#
+# set STMT [sqlite3_prepare_v2 "SELECT 'hello', 1.1, NULL" -1 DUMMY]
+# sqlite3_step $STMT
+# check_data test1.2 {TEXT REAL NULL} {0 1 0} {0 1.1 0} {hello 1.1 {}}
+#
+proc check_data {STMT test types ints doubles strings} {
+
+  # Use the return value of sqlite3_column_count() to build
+  # a list of column indexes. i.e. If sqlite3_column_count
+  # is 3, build the list {0 1 2}.
+  set ::idxlist [list]
+  set numcols [sqlite3_data_count $STMT]
+  for {set i 0} {$i < $numcols} {incr i} {lappend ::idxlist $i}
+
+# types
+do_test $test.1 {
+  set types [list]
+  foreach i $idxlist {lappend types [sqlite3_column_type $STMT $i]}
+  set types
+} $types
+
+# Integers
+do_test $test.2 {
+  set ints [list]
+  foreach i $idxlist {lappend ints [sqlite3_column_int64 $STMT $i]}
+  set ints
+} $ints
+
+# bytes
+set lens [list]
+foreach i $::idxlist {
+  lappend lens [string length [lindex $strings $i]]
+}
+do_test $test.3 {
+  set bytes [list]
+  set lens [list]
+  foreach i $idxlist {
+    lappend bytes [sqlite3_column_bytes $STMT $i]
+  }
+  set bytes
+} $lens
+
+# bytes16
+ifcapable {utf16} {
+  set lens [list]
+  foreach i $::idxlist {
+    lappend lens [expr 2 * [string length [lindex $strings $i]]]
+  }
+  do_test $test.4 {
+    set bytes [list]
+    set lens [list]
+    foreach i $idxlist {
+      lappend bytes [sqlite3_column_bytes16 $STMT $i]
+    }
+    set bytes
+  } $lens
+}
+
+# Blob
+do_test $test.5 {
+  set utf8 [list]
+  foreach i $idxlist {lappend utf8 [sqlite3_column_blob $STMT $i]}
+  set utf8
+} $strings
+
+# UTF-8
+do_test $test.6 {
+  set utf8 [list]
+  foreach i $idxlist {lappend utf8 [sqlite3_column_text $STMT $i]}
+  set utf8
+} $strings
+
+# Floats
+do_test $test.7 {
+  set utf8 [list]
+  foreach i $idxlist {lappend utf8 [sqlite3_column_double $STMT $i]}
+  set utf8
+} $doubles
+
+# UTF-16
+ifcapable {utf16} {
+  do_test $test.8 {
+    set utf8 [list]
+    foreach i $idxlist {lappend utf8 [utf8 [sqlite3_column_text16 $STMT $i]]}
+    set utf8
+  } $strings
+}
+
+# Integers
+do_test $test.9 {
+  set ints [list]
+  foreach i $idxlist {lappend ints [sqlite3_column_int $STMT $i]}
+  set ints
+} $ints
+
+# Floats
+do_test $test.10 {
+  set utf8 [list]
+  foreach i $idxlist {lappend utf8 [sqlite3_column_double $STMT $i]}
+  set utf8
+} $doubles
+
+# UTF-8
+do_test $test.11 {
+  set utf8 [list]
+  foreach i $idxlist {lappend utf8 [sqlite3_column_text $STMT $i]}
+  set utf8
+} $strings
+
+# Types
+do_test $test.12 {
+  set types [list]
+  foreach i $idxlist {lappend types [sqlite3_column_type $STMT $i]}
+  set types
+} $types
+
+# Test that an out of range request returns the equivalent of NULL
+do_test $test.13 {
+  sqlite3_column_int $STMT -1
+} {0}
+do_test $test.13 {
+  sqlite3_column_text $STMT -1
+} {}
+
+}
+
+ifcapable !floatingpoint {
+  finish_test
+  return
+}
+
+do_test capi3c-5.0 {
+  execsql {
+    CREATE TABLE t1(a VARINT, b BLOB, c VARCHAR(16));
+    INSERT INTO t1 VALUES(1, 2, 3);
+    INSERT INTO t1 VALUES('one', 'two', NULL);
+    INSERT INTO t1 VALUES(1.2, 1.3, 1.4);
+  }
+  set sql "SELECT * FROM t1"
+  set STMT [sqlite3_prepare_v2 $DB $sql -1 TAIL]
+  sqlite3_column_count $STMT
+} 3
+
+check_header $STMT capi3c-5.1 {a b c} {VARINT BLOB VARCHAR(16)}
+check_origin_header $STMT capi3c-5.1 {main main main} {t1 t1 t1} {a b c}
+do_test capi3c-5.2 {
+  sqlite3_step $STMT
+} SQLITE_ROW
+
+check_header $STMT capi3c-5.3 {a b c} {VARINT BLOB VARCHAR(16)}
+check_origin_header $STMT capi3c-5.3 {main main main} {t1 t1 t1} {a b c}
+check_data $STMT capi3c-5.4 {INTEGER INTEGER TEXT} {1 2 3} {1.0 2.0 3.0} {1 2 3}
+
+do_test capi3c-5.5 {
+  sqlite3_step $STMT
+} SQLITE_ROW
+
+check_header $STMT capi3c-5.6 {a b c} {VARINT BLOB VARCHAR(16)}
+check_origin_header $STMT capi3c-5.6 {main main main} {t1 t1 t1} {a b c}
+check_data $STMT capi3c-5.7 {TEXT TEXT NULL} {0 0 0} {0.0 0.0 0.0} {one two {}}
+
+do_test capi3c-5.8 {
+  sqlite3_step $STMT
+} SQLITE_ROW
+
+check_header $STMT capi3c-5.9 {a b c} {VARINT BLOB VARCHAR(16)}
+check_origin_header $STMT capi3c-5.9 {main main main} {t1 t1 t1} {a b c}
+check_data $STMT capi3c-5.10 {FLOAT FLOAT TEXT} {1 1 1} {1.2 1.3 1.4} {1.2 1.3 1.4}
+
+do_test capi3c-5.11 {
+  sqlite3_step $STMT
+} SQLITE_DONE
+
+do_test capi3c-5.12 {
+  sqlite3_finalize $STMT
+} SQLITE_OK
+
+do_test capi3c-5.20 {
+  set sql "SELECT a, sum(b), max(c) FROM t1 GROUP BY a"
+  set STMT [sqlite3_prepare_v2 $DB $sql -1 TAIL]
+  sqlite3_column_count $STMT
+} 3
+
+check_header $STMT capi3c-5.21 {a sum(b) max(c)} {VARINT {} {}}
+check_origin_header $STMT capi3c-5.22 {main {} {}} {t1 {} {}} {a {} {}}
+do_test capi3c-5.23 {
+  sqlite3_finalize $STMT
+} SQLITE_OK
+
+
+set ::ENC [execsql {pragma encoding}]
+db close
+
+do_test capi3c-6.0 {
+  sqlite3 db test.db
+  set DB [sqlite3_connection_pointer db]
+  if {[sqlite3 -has-codec]==0} { sqlite3_key $DB xyzzy }
+  set sql {SELECT a FROM t1 order by rowid}
+  set STMT [sqlite3_prepare_v2 $DB $sql -1 TAIL]
+  expr 0
+} {0}
+do_test capi3c-6.1 {
+  db cache flush
+  sqlite3_close $DB
+} {SQLITE_BUSY}
+do_test capi3c-6.2 {
+  sqlite3_step $STMT
+} {SQLITE_ROW}
+check_data $STMT capi3c-6.3 {INTEGER} {1} {1.0} {1}
+do_test capi3c-6.3 {
+  sqlite3_finalize $STMT
+} {SQLITE_OK}
+if {[clang_sanitize_address]==0} {
+  do_test capi3c-6.4 {
+    db cache flush
+      sqlite3_close $DB
+  } {SQLITE_OK}
+  do_test capi3c-6.99-misuse {
+    db close
+  } {}
+} else {
+  db close
+}
+
+# This procedure sets the value of the file-format in file 'test.db'
+# to $newval. Also, the schema cookie is incremented.
+# 
+proc set_file_format {newval} {
+  hexio_write test.db 44 [hexio_render_int32 $newval]
+  set schemacookie [hexio_get_int [hexio_read test.db 40 4]]
+  incr schemacookie
+  hexio_write test.db 40 [hexio_render_int32 $schemacookie]
+  return {}
+}
+
+# This procedure returns the value of the file-format in file 'test.db'.
+# 
+proc get_file_format {{fname test.db}} {
+  return [hexio_get_int [hexio_read $fname 44 4]]
+}
+
+if {![sqlite3 -has-codec]} {
+  # Test what happens when the library encounters a newer file format.
+  do_test capi3c-7.1 {
+    set_file_format 5
+  } {}
+  do_test capi3c-7.2 {
+    catch { sqlite3 db test.db }
+    catchsql {
+      SELECT * FROM sqlite_master;
+    }
+  } {1 {unsupported file format}}
+  db close
+}
+
+if {![sqlite3 -has-codec]} {
+  # Now test that the library correctly handles bogus entries in the
+  # sqlite_master table (schema corruption).
+  do_test capi3c-8.1 {
+    forcedelete test.db test.db-journal
+    sqlite3 db test.db
+    execsql {
+      CREATE TABLE t1(a);
+    }
+    db close
+  } {}
+  do_test capi3c-8.2 {
+    sqlite3 db test.db
+    sqlite3_db_config db DEFENSIVE 0
+    execsql {
+      PRAGMA writable_schema=ON;
+      INSERT INTO sqlite_master VALUES(NULL,NULL,NULL,NULL,NULL);
+    }
+    db close
+  } {}
+  do_test capi3c-8.3 {
+    catch { sqlite3 db test.db }
+    catchsql {
+      SELECT * FROM sqlite_master;
+    }
+  } {1 {malformed database schema (?)}}
+  do_test capi3c-8.4 {
+    # Build a 5-field row record. The first field is a string 'table', and
+    # subsequent fields are all NULL.
+    db close
+    forcedelete test.db test.db-journal
+    sqlite3 db test.db
+    sqlite3_db_config db DEFENSIVE 0
+    execsql {
+      CREATE TABLE t1(a);
+      PRAGMA writable_schema=ON;
+      INSERT INTO sqlite_master VALUES('table',NULL,NULL,NULL,NULL);
+    }
+    db close
+  } {};
+  do_test capi3c-8.5 {
+    catch { sqlite3 db test.db }
+    catchsql {
+      SELECT * FROM sqlite_master;
+    }
+  } {1 {malformed database schema (?)}}
+  db close
+}
+forcedelete test.db
+forcedelete test.db-journal
+
+
+# Test the english language string equivalents for sqlite error codes
+set code2english [list \
+SQLITE_OK         {not an error} \
+SQLITE_ERROR      {SQL logic error} \
+SQLITE_PERM       {access permission denied} \
+SQLITE_ABORT      {query aborted} \
+SQLITE_BUSY       {database is locked} \
+SQLITE_LOCKED     {database table is locked} \
+SQLITE_NOMEM      {out of memory} \
+SQLITE_READONLY   {attempt to write a readonly database} \
+SQLITE_INTERRUPT  {interrupted} \
+SQLITE_IOERR      {disk I/O error} \
+SQLITE_CORRUPT    {database disk image is malformed} \
+SQLITE_FULL       {database or disk is full} \
+SQLITE_CANTOPEN   {unable to open database file} \
+SQLITE_EMPTY      {unknown error} \
+SQLITE_SCHEMA     {database schema has changed} \
+SQLITE_CONSTRAINT {constraint failed} \
+SQLITE_MISMATCH   {datatype mismatch} \
+SQLITE_MISUSE     {bad parameter or other API misuse} \
+SQLITE_AUTH       {authorization denied} \
+SQLITE_RANGE      {column index out of range} \
+SQLITE_NOTADB     {file is not a database} \
+unknownerror      {unknown error} \
+]
+
+set test_number 1
+foreach {code english} $code2english {
+  do_test capi3c-9.$test_number "sqlite3_test_errstr $code" $english
+  incr test_number
+}
+
+# Test the error message when a "real" out of memory occurs.
+if { [permutation] != "nofaultsim" } {
+  do_test capi3c-10-1 {
+    sqlite3 db test.db
+    set DB [sqlite3_connection_pointer db]
+    sqlite3_memdebug_fail 0
+    catchsql {
+      select * from sqlite_master;
+    }
+  } {1 {out of memory}}
+  do_test capi3c-10-2 {
+    sqlite3_errmsg $::DB
+  } {out of memory}
+  ifcapable {utf16} {
+    do_test capi3c-10-3 {
+      utf8 [sqlite3_errmsg16 $::DB]
+    } {out of memory}
+  }
+  db close
+  sqlite3_memdebug_fail -1
+}
+
+# The following tests - capi3c-11.* - test that a COMMIT or ROLLBACK
+# statement issued while there are still outstanding VMs that are part of
+# the transaction fails.
+sqlite3 db test.db
+set DB [sqlite3_connection_pointer db]
+sqlite_register_test_function $DB func
+do_test capi3c-11.1 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, 'int');
+    INSERT INTO t1 VALUES(2, 'notatype');
+  }
+} {}
+do_test capi3c-11.1.1 {
+  sqlite3_get_autocommit $DB
+} 0
+do_test capi3c-11.2 {
+  set STMT [sqlite3_prepare_v2 $DB "SELECT func(b, a) FROM t1" -1 TAIL]
+  sqlite3_step $STMT
+} {SQLITE_ROW}
+
+# As of 3.6.5 a COMMIT is OK during while a query is still running -
+# as long as it is a read-only query and not an incremental BLOB write.
+#
+do_test capi3-11.3.1 {
+  catchsql {
+    COMMIT;
+  }
+} {0 {}}
+do_test capi3-11.3.2 {
+  sqlite3_extended_errcode $DB
+} {SQLITE_OK}
+do_test capi3-11.3.3 {
+  sqlite3_get_autocommit $DB
+} 1
+do_test capi3-11.3.4 {
+  db eval {PRAGMA lock_status}
+} {main shared temp closed}
+
+do_test capi3c-11.4 {
+  sqlite3_step $STMT
+} {SQLITE_ERROR}
+do_test capi3c-11.5 {
+  sqlite3_finalize $STMT
+} {SQLITE_ERROR}
+do_test capi3c-11.6 {
+  catchsql {
+    SELECT * FROM t1;
+  }
+} {0 {1 int 2 notatype}}
+do_test capi3c-11.7 {
+  sqlite3_get_autocommit $DB
+} 1
+do_test capi3c-11.8 {
+  execsql {
+    CREATE TABLE t2(a);
+    INSERT INTO t2 VALUES(1);
+    INSERT INTO t2 VALUES(2);
+    BEGIN;
+    INSERT INTO t2 VALUES(3);
+  }
+} {}
+do_test capi3c-11.8.1 {
+  sqlite3_get_autocommit $DB
+} 0
+do_test capi3c-11.9 {
+  set STMT [sqlite3_prepare_v2 $DB "SELECT a FROM t2" -1 TAIL]
+  sqlite3_step $STMT
+} {SQLITE_ROW}
+do_test capi3c-11.9.1 {
+  sqlite3_get_autocommit $DB
+} 0
+do_test capi3c-11.9.2 {
+  catchsql {
+    ROLLBACK;
+  }
+} {0 {}}
+do_test capi3c-11.9.3 {
+  sqlite3_get_autocommit $DB
+} 1
+do_test capi3c-11.10 {
+  sqlite3_step $STMT
+} {SQLITE_ROW}
+do_test capi3c-11.11 {
+  sqlite3_step $STMT
+} {SQLITE_DONE}
+ifcapable !autoreset {
+  do_test capi3c-11.12armor {
+    sqlite3_step $STMT
+    sqlite3_step $STMT
+  } {SQLITE_MISUSE}
+} else {
+  do_test capi3c-11.12 {
+    sqlite3_step $STMT
+    sqlite3_step $STMT
+  } {SQLITE_ROW}
+}
+do_test capi3c-11.13 {
+  sqlite3_finalize $STMT
+} {SQLITE_OK}
+do_test capi3c-11.14 {
+  execsql {
+    SELECT a FROM t2;
+  }
+} {1 2}
+do_test capi3c-11.14.1 {
+  sqlite3_get_autocommit $DB
+} 1
+do_test capi3c-11.15 {
+  catchsql {
+    ROLLBACK;
+  }
+} {1 {cannot rollback - no transaction is active}}
+do_test capi3c-11.15.1 {
+  sqlite3_get_autocommit $DB
+} 1
+do_test capi3c-11.16 {
+  execsql {
+    SELECT a FROM t2;
+  }
+} {1 2}
+
+# Sanity check on the definition of 'outstanding VM'. This means any VM
+# that has had sqlite3_step() called more recently than sqlite3_finalize() or
+# sqlite3_reset(). So a VM that has just been prepared or reset does not
+# count as an active VM.
+do_test capi3c-11.17 {
+  execsql {
+    BEGIN;
+  }
+} {}
+do_test capi3c-11.18 {
+  set STMT [sqlite3_prepare_v2 $DB "SELECT a FROM t1" -1 TAIL]
+  catchsql {
+    COMMIT;
+  }
+} {0 {}}
+do_test capi3c-11.19 {
+  sqlite3_step $STMT
+} {SQLITE_ROW}
+do_test capi3c-11.20 {
+  catchsql {
+    BEGIN;
+    COMMIT;
+  }
+} {0 {}}
+do_test capi3c-11.20 {
+  sqlite3_reset $STMT
+  catchsql {
+    COMMIT;
+  }
+} {1 {cannot commit - no transaction is active}}
+do_test capi3c-11.21 {
+  sqlite3_finalize $STMT
+} {SQLITE_OK}
+
+# The following tests - capi3c-12.* - check that its Ok to start a
+# transaction while other VMs are active, and that its Ok to execute
+# atomic updates in the same situation 
+#
+do_test capi3c-12.1 {
+  set STMT [sqlite3_prepare_v2 $DB "SELECT a FROM t2" -1 TAIL]
+  sqlite3_step $STMT
+} {SQLITE_ROW}
+do_test capi3c-12.2 {
+  catchsql {
+    INSERT INTO t1 VALUES(3, NULL);
+  }
+} {0 {}}
+do_test capi3c-12.3 {
+  catchsql {
+    INSERT INTO t2 VALUES(4);
+  }
+} {0 {}}
+do_test capi3c-12.4 {
+  catchsql {
+    BEGIN;
+    INSERT INTO t1 VALUES(4, NULL);
+  }
+} {0 {}}
+do_test capi3c-12.5 {
+  sqlite3_step $STMT
+} {SQLITE_ROW}
+do_test capi3c-12.5.1 {
+  sqlite3_step $STMT
+} {SQLITE_ROW}
+do_test capi3c-12.6 {
+  sqlite3_step $STMT
+} {SQLITE_DONE}
+do_test capi3c-12.7 {
+  sqlite3_finalize $STMT
+} {SQLITE_OK}
+do_test capi3c-12.8 {
+  execsql {
+    COMMIT;
+    SELECT a FROM t1;
+  }
+} {1 2 3 4}
+
+# Test cases capi3c-13.* test the sqlite3_clear_bindings() and 
+# sqlite3_sleep APIs.
+#
+if {[llength [info commands sqlite3_clear_bindings]]>0} {
+  do_test capi3c-13.1 {
+    execsql {
+      DELETE FROM t1;
+    }
+    set STMT [sqlite3_prepare_v2 $DB "INSERT INTO t1 VALUES(?, ?)" -1 TAIL]
+    sqlite3_step $STMT
+  } {SQLITE_DONE}
+  do_test capi3c-13.2 {
+    sqlite3_reset $STMT
+    sqlite3_bind_text $STMT 1 hello 5
+    sqlite3_bind_text $STMT 2 world 5
+    sqlite3_step $STMT
+  } {SQLITE_DONE}
+  do_test capi3c-13.3 {
+    sqlite3_reset $STMT
+    sqlite3_clear_bindings $STMT
+    sqlite3_step $STMT
+  } {SQLITE_DONE}
+  do_test capi3c-13-4 {
+    sqlite3_finalize $STMT
+    execsql {
+      SELECT * FROM t1;
+    }
+  } {{} {} hello world {} {}}
+}
+if {[llength [info commands sqlite3_sleep]]>0} {
+  do_test capi3c-13-5 {
+    set ms [sqlite3_sleep 80]
+    expr {$ms==80 || $ms==1000}
+  } {1}
+}
+
+# Ticket #1219:  Make sure binding APIs can handle a NULL pointer.
+#
+do_test capi3c-14.1 {
+  set rc [catch {sqlite3_bind_text 0 1 hello 5} msg]
+  lappend rc $msg
+} {1 SQLITE_MISUSE}
+
+# Ticket #1650:  Honor the nBytes parameter to sqlite3_prepare.
+#
+do_test capi3c-15.1 {
+  set sql {SELECT * FROM t2}
+  set nbytes [string length $sql]
+  append sql { WHERE a==1}
+  set STMT [sqlite3_prepare_v2 $DB $sql $nbytes TAIL]
+  sqlite3_step $STMT
+  sqlite3_column_int $STMT 0
+} {1}
+do_test capi3c-15.2 {
+  sqlite3_step $STMT
+  sqlite3_column_int $STMT 0
+} {2}
+do_test capi3c-15.3 {
+  sqlite3_finalize $STMT
+} {SQLITE_OK}
+
+# Make sure code is always generated even if an IF EXISTS or 
+# IF NOT EXISTS clause is present that the table does not or
+# does exists.  That way we will always have a prepared statement
+# to expire when the schema changes.
+#
+do_test capi3c-16.1 {
+  set sql {DROP TABLE IF EXISTS t3}
+  set STMT [sqlite3_prepare_v2 $DB $sql -1 TAIL]
+  sqlite3_finalize $STMT
+  expr {$STMT!=""}
+} {1}
+do_test capi3c-16.2 {
+  set sql {CREATE TABLE IF NOT EXISTS t1(x,y)}
+  set STMT [sqlite3_prepare_v2 $DB $sql -1 TAIL]
+  sqlite3_finalize $STMT
+  expr {$STMT!=""}
+} {1}
+
+# But still we do not generate code if there is no SQL
+#
+do_test capi3c-16.3 {
+  set STMT [sqlite3_prepare_v2 $DB {} -1 TAIL]
+  sqlite3_finalize $STMT
+  expr {$STMT==""}
+} {1}
+do_test capi3c-16.4 {
+  set STMT [sqlite3_prepare_v2 $DB {;} -1 TAIL]
+  sqlite3_finalize $STMT
+  expr {$STMT==""}
+} {1}
+
+# Ticket #2154.
+#
+do_test capi3c-17.1 {
+  set STMT [sqlite3_prepare_v2 $DB {SELECT max(a) FROM t2} -1 TAIL]
+  sqlite3_step $STMT
+} SQLITE_ROW
+do_test capi3c-17.2 {
+  sqlite3_column_int $STMT 0
+} 4
+do_test capi3c-17.3 {
+  sqlite3_step $STMT
+} SQLITE_DONE
+do_test capi3c-17.4 {
+  sqlite3_reset $STMT
+  db eval {CREATE INDEX i2 ON t2(a)}
+  sqlite3_step $STMT
+} SQLITE_ROW
+do_test capi3c-17.5 {
+  sqlite3_column_int $STMT 0
+} 4
+do_test capi3c-17.6 {
+  sqlite3_step $STMT
+} SQLITE_DONE
+do_test capi3c-17.7 {
+  sqlite3_reset $STMT
+  db eval {DROP INDEX i2}
+  sqlite3_step $STMT
+} SQLITE_ROW
+do_test capi3c-17.8 {
+  sqlite3_column_int $STMT 0
+} 4
+do_test capi3c-17.9 {
+  sqlite3_step $STMT
+} SQLITE_DONE
+do_test capi3c-17.10 {
+  sqlite3_finalize $STMT
+  set STMT [sqlite3_prepare_v2 $DB {SELECT b FROM t1 WHERE a=?} -1 TAIL]
+  sqlite3_bind_int $STMT 1 2
+  db eval {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES(1,'one');
+    INSERT INTO t1 VALUES(2,'two');
+    INSERT INTO t1 VALUES(3,'three');
+    INSERT INTO t1 VALUES(4,'four');
+  }
+  sqlite3_step $STMT
+} SQLITE_ROW
+do_test capi3c-17.11 {
+  sqlite3_column_text $STMT 0
+} two
+do_test capi3c-17.12 {
+  sqlite3_step $STMT
+} SQLITE_DONE
+do_test capi3c-17.13 {
+  sqlite3_reset $STMT
+  db eval {CREATE INDEX i1 ON t1(a)}
+  sqlite3_step $STMT
+} SQLITE_ROW
+do_test capi3c-17.14 {
+  sqlite3_column_text $STMT 0
+} two
+do_test capi3c-17.15 {
+  sqlite3_step $STMT
+} SQLITE_DONE
+do_test capi3c-17.16 {
+  sqlite3_reset $STMT
+  db eval {DROP INDEX i1}
+  sqlite3_step $STMT
+} SQLITE_ROW
+do_test capi3c-17.17 {
+  sqlite3_column_text $STMT 0
+} two
+do_test capi3c-17.18 {
+  sqlite3_step $STMT
+} SQLITE_DONE
+do_test capi3c-17.99 {
+  sqlite3_finalize $STMT
+} SQLITE_OK
+
+# On the mailing list it has been reported that finalizing after
+# an SQLITE_BUSY return leads to a segfault.  Here we test that case.
+#
+do_test capi3c-18.1 {
+  sqlite3 db2 test.db
+  set STMT [sqlite3_prepare_v2 $DB {SELECT max(a) FROM t1} -1 TAIL]
+  sqlite3_step $STMT
+} SQLITE_ROW
+do_test capi3c-18.2 {
+  sqlite3_column_int $STMT 0
+} 4
+do_test capi3c-18.3 {
+  sqlite3_reset $STMT
+  db2 eval {BEGIN EXCLUSIVE}
+  sqlite3_step $STMT
+} SQLITE_BUSY
+do_test capi3c-18.4 {
+  sqlite3_finalize $STMT
+} SQLITE_BUSY
+do_test capi3c-18.5 {
+  db2 eval {COMMIT}
+  db2 close
+} {}
+
+# Ticket #2158.  The sqlite3_step() will still return SQLITE_SCHEMA
+# if the database schema changes in a way that makes the statement
+# no longer valid.
+#
+do_test capi3c-19.1 {
+  db eval {
+     CREATE TABLE t3(x,y);
+     INSERT INTO t3 VALUES(1,2);
+  }
+  set STMT [sqlite3_prepare_v2 $DB {SELECT * FROM t3} -1 TAIL]
+  sqlite3_step $STMT
+} SQLITE_ROW
+do_test capi3c-19.2 {
+  sqlite3_column_int $STMT 0
+} 1
+do_test capi3c-19.3 {
+  sqlite3_step $STMT
+} SQLITE_DONE
+do_test capi3c-19.4 {
+  sqlite3_reset $STMT
+  db eval {DROP TABLE t3}
+  sqlite3_step $STMT
+} SQLITE_ERROR
+do_test capi3c-19.4.1 {
+  sqlite3_errmsg $DB
+} {no such table: t3}
+ifcapable deprecated {
+  do_test capi3c-19.4.2 {
+    sqlite3_expired $STMT
+  } 1
+}
+do_test capi3c-19.4.3 {
+  sqlite3_errmsg $DB
+} {no such table: t3}
+ifcapable deprecated {
+  do_test capi3c-19.4.4 {
+    sqlite3_expired 0
+  } 1
+}
+do_test capi3c-19.5 {
+  sqlite3_reset $STMT
+  db eval {
+     CREATE TABLE t3(x,y);
+     INSERT INTO t3 VALUES(1,2);
+  }
+  sqlite3_step $STMT
+} SQLITE_ROW
+ifcapable deprecated {
+  do_test capi3c-19.5.2 {
+    sqlite3_expired $STMT
+  } 0
+}
+do_test capi3c-19.6 {
+  sqlite3_column_int $STMT 1
+} 2
+do_test capi3c-19.99 {
+  sqlite3_finalize $STMT
+} SQLITE_OK
+
+# Make sure a change in a separate database connection does not
+# cause an SQLITE_SCHEMA return.
+#
+do_test capi3c-20.1 {
+  set STMT [sqlite3_prepare_v2 $DB {SELECT * FROM t3} -1 TAIL]
+  sqlite3 db2 test.db
+  db2 eval {CREATE TABLE t4(x)}
+  sqlite3_step $STMT
+} SQLITE_ROW
+do_test capi3c-20.2 {
+  sqlite3_column_int $STMT 1
+} 2
+do_test capi3c-20.3 {
+  sqlite3_step $STMT
+} SQLITE_DONE
+do_test capi3c-20.4 {
+  db2 close
+  sqlite3_finalize $STMT
+} SQLITE_OK
+
+# Test that sqlite3_step() sets the database error code correctly.
+# See ticket #2497.
+#
+ifcapable progress {
+  do_test capi3c-21.1 {
+    set STMT [sqlite3_prepare_v2 $DB {SELECT * FROM t3} -1 TAIL]
+    db progress 5 "expr 1"
+    sqlite3_step $STMT
+  } {SQLITE_INTERRUPT}
+  do_test capi3c-21.2 {
+    sqlite3_extended_errcode $DB
+  } {SQLITE_INTERRUPT}
+  do_test capi3c-21.3 {
+    sqlite3_finalize $STMT
+  } {SQLITE_INTERRUPT}
+  do_test capi3c-21.4 {
+    db progress
+    set STMT [sqlite3_prepare $DB {SELECT * FROM t3} -1 TAIL]
+    db progress 5 "expr 1"
+    sqlite3_step $STMT
+  } {SQLITE_ERROR}
+  do_test capi3c-21.5 {
+    sqlite3_errcode $DB
+  } {SQLITE_ERROR}
+  do_test capi3c-21.6 {
+    sqlite3_finalize $STMT
+  } {SQLITE_INTERRUPT}
+  do_test capi3c-21.7 {
+    sqlite3_errcode $DB
+  } {SQLITE_INTERRUPT}
+  do_test capi3c-21.8 {
+    sqlite3_extended_errcode $DB
+  } {SQLITE_INTERRUPT}
+}
+
+# Make sure sqlite3_result_error_code() returns the correct error code.
+# See ticket #2940
+#
+do_test capi3c-22.1 {
+  db progress 0 {}
+  set STMT [sqlite3_prepare_v2 db {SELECT test_error('the message',3)} -1 TAIL]
+  sqlite3_step $STMT
+} {SQLITE_PERM}
+sqlite3_finalize $STMT
+do_test capi3c-22.2 {
+  set STMT [sqlite3_prepare_v2 db {SELECT test_error('the message',4)} -1 TAIL]
+  sqlite3_step $STMT
+} {SQLITE_ABORT}
+sqlite3_finalize $STMT
+do_test capi3c-22.3 {
+  set STMT [sqlite3_prepare_v2 db {SELECT test_error('the message',16)} -1 TAIL]
+  sqlite3_step $STMT
+} {SQLITE_EMPTY}
+sqlite3_finalize $STMT
+
+# For a multi-column result set where the same table column is repeated
+# in multiple columns of the output, verify that doing a UTF-8 to UTF-16
+# conversion (or vice versa) on one column does not change the value of
+# the second.
+#
+ifcapable utf16 {
+  do_test capi3c-23.1 {
+    set STMT [sqlite3_prepare_v2 db {SELECT b,b,b,b FROM t1} -1 TAIL]
+    sqlite3_step $STMT
+  } {SQLITE_ROW}
+  do_test capi3c-23.2 {
+    sqlite3_column_text16 $STMT 0
+    sqlite3_column_text $STMT 1
+  } {one}
+  do_test capi3c-23.3 {
+    sqlite3_column_text16 $STMT 2
+    sqlite3_column_text $STMT 3
+  } {one}
+  sqlite3_finalize $STMT
+  do_test capi3c-23.4 {
+    set STMT [sqlite3_prepare_v2 db {SELECT b||'x',b,b,b FROM t1} -1 TAIL]
+    sqlite3_step $STMT
+  } {SQLITE_ROW}
+  do_test capi3c-23.5 {
+    sqlite3_column_text16 $STMT 0
+    sqlite3_column_text $STMT 1
+  } {one}
+  do_test capi3c-23.6 {
+    sqlite3_column_text16 $STMT 2
+    sqlite3_column_text $STMT 3
+  } {one}
+  sqlite3_finalize $STMT
+}
+
+# Test decltype on some SELECT statements that contain sub-selects.
+#
+proc decltype {zSql} {
+  set ret [list]
+  set STMT [sqlite3_prepare_v2 db $zSql -1 TAIL]
+  for {set i 0} {$i < [sqlite3_column_count $STMT]} {incr i} {
+    lappend ret [sqlite3_column_decltype $STMT $i]
+  }
+  sqlite3_finalize $STMT
+  return $ret
+}
+do_test capi3c-24.1 {
+  execsql { CREATE TABLE t5(a INTEGER, b STRING, c DATETIME) }
+  decltype {SELECT * FROM t5}
+} {INTEGER STRING DATETIME}
+do_test capi3c-24.2 {
+  decltype {SELECT (SELECT c) FROM t5}
+} {DATETIME}
+do_test capi3c-24.3 {
+  decltype {SELECT (SELECT * FROM (SELECT c)) FROM t5}
+} {DATETIME}
+do_test capi3c-24.4 {
+  decltype {SELECT * FROM (SELECT * FROM t5 ORDER BY c LIMIT 1) ORDER BY b}
+} {INTEGER STRING DATETIME}
+do_test capi3c-24.5 {
+  decltype {
+    SELECT (SELECT x FROM (SELECT c AS x)) 
+    FROM (SELECT * FROM t5 ORDER BY c LIMIT 1) ORDER BY b
+  }
+} {DATETIME}
+do_test capi3c-24.3 {
+  decltype {SELECT (SELECT x FROM (SELECT t5.a AS x)) FROM t5}
+} {INTEGER}
+
+
+# Further tests of sqlite3_column_decltype():
+#
+do_execsql_test 25.0 {
+  CREATE TABLE t11(a VARCHAR(10), b INTEGER);
+  CREATE TABLE t12(a VARCHAR(15), b FLOAT);
+}
+
+foreach {tn sql} {
+  1 "SELECT * FROM t11 UNION ALL SELECT * FROM t12"
+  2 "SELECT * FROM t11 UNION SELECT * FROM t12"
+  3 "SELECT * FROM t11 EXCEPT SELECT * FROM t12"
+  4 "SELECT * FROM t11 INTERSECT SELECT * FROM t12"
+
+  5 "SELECT * FROM t11 UNION ALL SELECT * FROM t12 ORDER BY 1"
+  6 "SELECT * FROM t11 UNION SELECT * FROM t12 ORDER BY 1"
+  7 "SELECT * FROM t11 EXCEPT SELECT * FROM t12 ORDER BY 1"
+  8 "SELECT * FROM t11 INTERSECT SELECT * FROM t12 ORDER BY 1"
+} {
+  do_test 25.$tn { decltype $sql } {VARCHAR(10) INTEGER}
+}
+
+finish_test
diff --git a/test/capi3d.test b/test/capi3d.test
new file mode 100644
index 0000000000000000000000000000000000000000..7cad2870cd598add9b3b716a4f28f5cb22ba237f
--- /dev/null
+++ b/test/capi3d.test
@@ -0,0 +1,289 @@
+# 2008 June 18
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  
+#
+# This file is devoted to testing the sqlite3_next_stmt and
+# sqlite3_stmt_readonly and sqlite3_stmt_busy interfaces.
+#
+# $Id: capi3d.test,v 1.2 2008/07/14 15:11:20 drh Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Create N prepared statements against database connection db
+# and return a list of all the generated prepared statements.
+#
+proc make_prepared_statements {N} {
+  set plist {}
+  for {set i 0} {$i<$N} {incr i} {
+    set sql "SELECT $i FROM sqlite_master WHERE name LIKE '%$i%'"
+    if {rand()<0.33} {    
+      set s [sqlite3_prepare_v2 db $sql -1 notused]
+    } else {
+      ifcapable utf16 {
+        if {rand()<0.5} {
+          set sql [encoding convertto unicode $sql]\x00\x00
+          set s [sqlite3_prepare16 db $sql -1 notused]
+        } else {
+          set s [sqlite3_prepare db $sql -1 notused]
+        }
+      }
+      ifcapable !utf16 {
+        set s [sqlite3_prepare db $sql -1 notused]
+      }
+    }
+    lappend plist $s
+  }
+  return $plist
+}
+
+
+# Scramble the $inlist into a random order.
+#
+proc scramble {inlist} {
+  set y {}
+  foreach x $inlist {
+    lappend y [list [expr {rand()}] $x]
+  }
+  set y [lsort $y]
+  set outlist {}
+  foreach x $y {
+    lappend outlist [lindex $x 1]
+  }
+  return $outlist
+}
+
+# Database initially has no prepared statements.
+#
+do_test capi3d-1.1 {
+  db cache flush
+  sqlite3_next_stmt db 0
+} {}
+
+# Run the following tests for between 1 and 100 prepared statements.
+#
+for {set i 1} {$i<=100} {incr i} {
+  set stmtlist [make_prepared_statements $i]
+  do_test capi3d-1.2.$i.1 {
+    set p [sqlite3_next_stmt db 0]
+    set x {}
+    while {$p!=""} {
+      lappend x $p
+      set p [sqlite3_next_stmt db $p]
+    }
+    lsort $x
+  } [lsort $stmtlist]
+  do_test capi3-1.2.$i.2 {
+    foreach p [scramble $::stmtlist] {
+      sqlite3_finalize $p
+    }
+    sqlite3_next_stmt db 0
+  } {}
+}
+
+# Tests for the is-read-only interface.
+#
+proc test_is_readonly {testname sql truth} {
+  do_test $testname [format {
+    set DB [sqlite3_connection_pointer db]
+    set STMT [sqlite3_prepare $DB {%s} -1 TAIL]
+    set rc [sqlite3_stmt_readonly $STMT]
+    sqlite3_finalize $STMT
+    set rc
+  } $sql] $truth
+
+  # EVIDENCE-OF: R-61212-30018 If prepared statement X is an EXPLAIN or
+  # EXPLAIN QUERY PLAN statement, then sqlite3_stmt_readonly(X) returns
+  # the same value as if the EXPLAIN or EXPLAIN QUERY PLAN prefix were
+  # omitted.
+  #
+  do_test $testname.explain [format {
+    set DB [sqlite3_connection_pointer db]
+    set STMT [sqlite3_prepare $DB {EXPLAIN %s} -1 TAIL]
+    set rc [sqlite3_stmt_readonly $STMT]
+    sqlite3_finalize $STMT
+    set rc
+  } $sql] $truth
+  do_test $testname.eqp [format {
+    set DB [sqlite3_connection_pointer db]
+    set STMT [sqlite3_prepare $DB {EXPLAIN QUERY PLAN %s} -1 TAIL]
+    set rc [sqlite3_stmt_readonly $STMT]
+    sqlite3_finalize $STMT
+    set rc
+  } $sql] $truth
+}
+
+# EVIDENCE-OF: R-23332-64992 The sqlite3_stmt_readonly(X) interface
+# returns true (non-zero) if and only if the prepared statement X makes
+# no direct changes to the content of the database file.
+#
+test_is_readonly capi3d-2.1 {SELECT * FROM sqlite_master} 1
+test_is_readonly capi3d-2.2 {CREATE TABLE t1(x)} 0
+db eval {CREATE TABLE t1(x)}
+test_is_readonly capi3d-2.3 {INSERT INTO t1 VALUES(5)} 0
+test_is_readonly capi3d-2.4 {UPDATE t1 SET x=x+1 WHERE x<0} 0
+test_is_readonly capi3d-2.5 {SELECT * FROM t1} 1
+ifcapable wal {
+  test_is_readonly capi3d-2.6 {PRAGMA journal_mode=WAL} 0
+  test_is_readonly capi3d-2.7 {PRAGMA wal_checkpoint} 0
+}
+test_is_readonly capi3d-2.8 {PRAGMA application_id=1234} 0
+test_is_readonly capi3d-2.9 {VACUUM} 0
+test_is_readonly capi3d-2.10 {PRAGMA integrity_check} 1
+do_test capi3-2.49 {
+  sqlite3_stmt_readonly 0
+} 1
+
+
+# EVIDENCE-OF: R-04929-09147 This routine returns false if there is any
+# possibility that the statement might change the database file.
+#
+# EVIDENCE-OF: R-13288-53765 A false return does not guarantee that the
+# statement will change the database file.
+#
+# EVIDENCE-OF: R-22182-18548 For example, an UPDATE statement might have
+# a WHERE clause that makes it a no-op, but the sqlite3_stmt_readonly()
+# result would still be false.
+#
+# EVIDENCE-OF: R-50998-48593 Similarly, a CREATE TABLE IF NOT EXISTS
+# statement is a read-only no-op if the table already exists, but
+# sqlite3_stmt_readonly() still returns false for such a statement.
+#
+db eval {
+  CREATE TABLE t2(a,b,c);
+  INSERT INTO t2 VALUES(1,2,3);
+}
+test_is_readonly capi3d-2.11 {UPDATE t2 SET a=a+1 WHERE false} 0
+test_is_readonly capi3d-2.12 {CREATE TABLE IF NOT EXISTS t2(x,y)} 0
+
+
+# EVIDENCE-OF: R-37014-01401 The ATTACH and DETACH statements also cause
+# sqlite3_stmt_readonly() to return true since, while those statements
+# change the configuration of a database connection, they do not make
+# changes to the content of the database files on disk.
+#
+test_is_readonly capi3d-2.13 {ATTACH ':memory:' AS mem1} 1
+db eval {ATTACH ':memory:' AS mem1}
+test_is_readonly capi3d-2.14 {DETACH mem1} 1
+db eval {DETACH mem1}
+
+# EVIDENCE-OF: R-07474-04783 Transaction control statements such as
+# BEGIN, COMMIT, ROLLBACK, SAVEPOINT, and RELEASE cause
+# sqlite3_stmt_readonly() to return true, since the statements
+# themselves do not actually modify the database but rather they control
+# the timing of when other statements modify the database.
+#
+test_is_readonly capi3d-2.15 {BEGIN} 1
+test_is_readonly capi3d-2.16 {COMMIT} 1
+test_is_readonly capi3d-2.17 {SAVEPOINT one} 1
+test_is_readonly capi3d-2.18 {RELEASE one} 1
+
+# EVIDENCE-OF: R-36961-63052 The sqlite3_stmt_readonly() interface
+# returns true for BEGIN since BEGIN merely sets internal flags, but the
+# BEGIN IMMEDIATE and BEGIN EXCLUSIVE commands do touch the database and
+# so sqlite3_stmt_readonly() returns false for those commands.
+#
+test_is_readonly capi3d-2.19 {BEGIN IMMEDIATE} 0
+test_is_readonly capi3d-2.20 {BEGIN EXCLUSIVE} 0
+
+# EVIDENCE-OF: R-21769-42523 For example, if an application defines a
+# function "eval()" that calls sqlite3_exec(), then the following SQL
+# statement would change the database file through side-effects: SELECT
+# eval('DELETE FROM t1') FROM t2; But because the SELECT statement does
+# not change the database file directly, sqlite3_stmt_readonly() would
+# still return true.
+#
+proc evalsql {sql} {db eval $sql}
+db func eval evalsql
+test_is_readonly capi3d-2.21 {SELECT eval('DELETE FROM t1') FROM t2} 1
+
+# Tests for the is-explain interface.
+#
+proc test_is_explain {testname sql truth} {
+  do_test $testname [format {
+    set DB [sqlite3_connection_pointer db]
+    set STMT [sqlite3_prepare $DB {%s} -1 TAIL]
+    set rc [sqlite3_stmt_isexplain $STMT]
+    sqlite3_finalize $STMT
+    set rc
+  } $sql] $truth
+}
+
+test_is_explain capi3d-2.51 {SELECT * FROM sqlite_master} 0
+test_is_explain capi3d-2.52 { explain SELECT * FROM sqlite_master} 1
+test_is_explain capi3d-2.53 {  Explain Query Plan select * FROM sqlite_master} 2
+do_test capi3-2.99 {
+  sqlite3_stmt_isexplain 0
+} 0
+
+# Tests for sqlite3_stmt_busy
+#
+do_test capi3d-3.1 {
+  db eval {INSERT INTO t1 VALUES(6); INSERT INTO t1 VALUES(7);}
+  set STMT [sqlite3_prepare db {SELECT * FROM t1} -1 TAIL]
+  sqlite3_stmt_busy $STMT
+} {0}
+do_test capi3d-3.2 {
+  sqlite3_step $STMT
+  sqlite3_stmt_busy $STMT
+} {1}
+do_test capi3d-3.3 {
+  sqlite3_step $STMT
+  sqlite3_stmt_busy $STMT
+} {1}
+do_test capi3d-3.4 {
+  sqlite3_reset $STMT
+  sqlite3_stmt_busy $STMT
+} {0}
+
+do_test capi3d-3.99 {
+  sqlite3_finalize $STMT
+  sqlite3_stmt_busy 0
+} {0}
+
+#--------------------------------------------------------------------------
+# Test the sqlite3_stmt_busy() function with ROLLBACK statements.
+#
+reset_db
+
+do_execsql_test capi3d-4.1 {
+  CREATE TABLE t4(x,y);
+  BEGIN;
+}
+
+do_test capi3d-4.2.1 {
+  set ::s1 [sqlite3_prepare_v2 db "ROLLBACK" -1 notused]
+  sqlite3_step $::s1
+} {SQLITE_DONE}
+
+do_test capi3d-4.2.2 {
+  sqlite3_stmt_busy $::s1
+} {0}
+
+do_catchsql_test capi3d-4.2.3 {
+  VACUUM
+} {0 {}}
+
+do_test capi3d-4.2.4 {
+  sqlite3_reset $::s1
+} {SQLITE_OK}
+
+do_catchsql_test capi3d-4.2.5 {
+  VACUUM
+} {0 {}}
+
+do_test capi3d-4.2.6 {
+  sqlite3_finalize $::s1
+} {SQLITE_OK}
+
+
+finish_test
diff --git a/test/capi3e.test b/test/capi3e.test
new file mode 100644
index 0000000000000000000000000000000000000000..3e478e79040eff9d9df47dbd9a65d87a458cc914
--- /dev/null
+++ b/test/capi3e.test
@@ -0,0 +1,126 @@
+# 2010 Novemeber 18
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script testing the callback-free C/C++ API.
+#
+# $Id: capi3e.test,v 1.70 2009/01/09 02:49:32 drh Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Make sure the system encoding is utf-8. Otherwise, if the system encoding
+# is other than utf-8, [file isfile $x] may not refer to the same file
+# as [sqlite3 db $x].
+#
+# This is no longer needed here because it should be done within the test
+# fixture executable itself, via Tcl_SetSystemEncoding.
+#
+# encoding system utf-8
+
+# Do not use a codec for tests in this file, as the database file is
+# manipulated directly using tcl scripts (using the [hexio_write] command).
+#
+do_not_use_codec
+
+# Return the UTF-16 representation of the supplied UTF-8 string $str.
+# If $nt is true, append two 0x00 bytes as a nul terminator.
+proc utf16 {str {nt 1}} {
+  set r [encoding convertto unicode $str]
+  if {$nt} {
+    append r "\x00\x00"
+  }
+  return $r
+}
+
+# Return the UTF-8 representation of the supplied UTF-16 string $str. 
+proc utf8 {str} {
+  # If $str ends in two 0x00 0x00 bytes, knock these off before
+  # converting to UTF-8 using TCL.
+  binary scan $str \c* vals
+  if {[lindex $vals end]==0 && [lindex $vals end-1]==0} {
+    set str [binary format \c* [lrange $vals 0 end-2]]
+  }
+
+  set r [encoding convertfrom unicode $str]
+  return $r
+}
+
+# These tests complement those in capi2.test. They are organized
+# as follows:
+#
+# capi3e-1.*: Test sqlite3_open with various UTF8 filenames
+# capi3e-2.*: Test sqlite3_open16 with various UTF8 filenames
+# capi3e-3.*: Test ATTACH with various UTF8 filenames
+
+db close
+
+# here's the list of file names we're testing
+set names {t 1 t. 1. t.d 1.d t-1 1-1 t.db ä.db ë.db ö.db ü.db ÿ.db}
+
+set i 0
+foreach name $names {
+  incr i
+  do_test capi3e-1.1.$i {
+    set db2 [sqlite3_open $name {}]
+    sqlite3_errcode $db2
+  } {SQLITE_OK}
+  do_test capi3e-1.2.$i {
+    sqlite3_close $db2
+  } {SQLITE_OK}
+  do_test capi3e-1.3.$i {
+    file isfile $name
+  } {1}
+}
+
+ifcapable {utf16} {
+  set i 0
+  foreach name $names {
+    incr i
+    do_test capi3e-2.1.$i {
+      set db2 [sqlite3_open16 [utf16 $name] {}]
+      sqlite3_errcode $db2
+    } {SQLITE_OK}
+    do_test capi3e-2.2.$i {
+      sqlite3_close $db2
+    } {SQLITE_OK}
+    do_test capi3e-2.3.$i {
+      file isfile $name
+    } {1}
+  }
+}
+
+ifcapable attach {
+  do_test capi3e-3.1 {
+    sqlite3 db2 base.db
+  } {}
+  set i 0
+  foreach name $names {
+    incr i
+    do_test capi3e-3.2.$i {
+      db2 eval "ATTACH DATABASE '$name' AS db$i;"
+    } {}
+    do_test capi3e-3.3.$i {
+      db2 eval "DETACH DATABASE db$i;"
+    } {}
+  }
+  do_test capi3e-3.4 {
+    db2 close
+  } {}
+}
+
+# clean up
+forcedelete base.db
+foreach name $names {
+  forcedelete $name
+}
+
+finish_test
diff --git a/test/carray01.test b/test/carray01.test
new file mode 100644
index 0000000000000000000000000000000000000000..1af9cb66e33457ab20cf523041c91b02d24065b2
--- /dev/null
+++ b/test/carray01.test
@@ -0,0 +1,159 @@
+# 2020-11-17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+# This file implements tests for CARRAY extension
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix carray01
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+load_static_extension db carray
+
+# Parameter $stmt must be a prepared statement created using
+# the sqlite3_prepare_v2 command and with parameters fully bound.
+# This routine simply runs the statement, gathers the result, and
+# returns a list containing the result.
+#
+# If the optional second argument is true, then the stmt is finalized
+# after it is run.
+#
+proc run_stmt {stmt} {
+  set r {}
+  while {[sqlite3_step $stmt]=="SQLITE_ROW"} {
+    for {set i 0} {$i<[sqlite3_data_count $stmt]} {incr i} {
+      lappend r [sqlite3_column_text $stmt $i]
+    }
+  }
+  sqlite3_reset $stmt
+  return $r
+}
+
+do_test 100 {
+  set STMT [sqlite3_prepare_v2 db {SELECT 5 IN carray(?3)} -1]
+  sqlite3_carray_bind $STMT 3 1 2 3 4 5 6 7
+  run_stmt $STMT
+} {1}
+do_test 101 {
+  sqlite3_carray_bind -static $STMT 3 1 2 3 4 5 6 7
+  run_stmt $STMT
+} {1}
+do_test 102 {
+  set STMT2 [sqlite3_prepare_v2 db {
+       SELECT DISTINCT typeof(value) FROM carray(?3)} -1]
+  sqlite3_carray_bind $STMT2 3 1 2 3 4 5 6 7
+  run_stmt $STMT2
+} {integer}
+do_test 110 {
+  sqlite3_carray_bind $STMT 3 1 2 3 4 6 7
+  run_stmt $STMT
+} {0}
+do_test 120 {
+  sqlite3_carray_bind -int64 $STMT 3 1 2 3 4 5 6 7
+  run_stmt $STMT
+} {1}
+do_test 120b {
+  sqlite3_carray_bind -int64 $STMT2 3 1 2 3 4 5 6 7
+  run_stmt $STMT2
+} {integer}
+do_test 121 {
+  sqlite3_carray_bind -int64 -transient $STMT 3 1 2 3 4 5 6 7
+  run_stmt $STMT
+} {1}
+do_test 122 {
+  sqlite3_carray_bind -int64 -static $STMT 3 1 2 3 4 5 6 7
+  run_stmt $STMT
+} {1}
+do_test 123 {
+  sqlite3_carray_bind -int32 -transient $STMT 3 1 2 3 4 5 6 7
+  run_stmt $STMT
+} {1}
+do_test 124 {
+  sqlite3_carray_bind -int32 -static $STMT 3 1 2 3 4 5 6 7
+  run_stmt $STMT
+} {1}
+do_test 125 {
+  sqlite3_carray_bind -int32 $STMT 3 1 2 3 4 5 6 7
+  run_stmt $STMT
+} {1}
+do_test 130 {
+  sqlite3_carray_bind -int64 $STMT 3 1 2 3 4 6 7
+  run_stmt $STMT
+} {0}
+do_test 131 {
+  sqlite3_carray_bind -int64 -transient $STMT 3 1 2 3 4 6 7
+  run_stmt $STMT
+} {0}
+do_test 131 {
+  sqlite3_carray_bind -int64 -static $STMT 3 1 2 3 4 6 7
+  run_stmt $STMT
+} {0}
+do_test 140 {
+  sqlite3_carray_bind -double $STMT 3 1 2 3 4 5 6 7
+  run_stmt $STMT
+} {1}
+do_test 141 {
+  sqlite3_carray_bind -double -transient $STMT 3 1 2 3 4 5 6 7
+  run_stmt $STMT
+} {1}
+do_test 142 {
+  sqlite3_carray_bind -double -static $STMT 3 1 2 3 4 5 6 7
+  run_stmt $STMT
+} {1}
+do_test 143 {
+  sqlite3_carray_bind -double $STMT2 3 1 2 3 4 5 6 7
+  run_stmt $STMT2
+} {real}
+do_test 150 {
+  sqlite3_carray_bind -double $STMT 3 1 2 3 4 6 7
+  run_stmt $STMT
+} {0}
+do_test 160 {
+  sqlite3_carray_bind -double $STMT 3 1 2 3 4 5 6 7
+  run_stmt $STMT
+} {1}
+do_test 170 {
+  sqlite3_carray_bind -text -static $STMT 3 1 2 3 4 6 7
+  run_stmt $STMT
+} {0}
+do_test 171 {
+  sqlite3_carray_bind -text -static $STMT2 3 1 2 3 4 6 7
+  run_stmt $STMT2
+} {text}
+do_test 180 {
+  sqlite3_carray_bind -text -transient $STMT 3 1 2 3 4 5 6 7
+  run_stmt $STMT
+} {0}
+do_test 190 {
+  sqlite3_carray_bind -blob -static $STMT 3 1 2 3 4 5 6 7
+  run_stmt $STMT
+} {0}
+do_test 191 {
+  sqlite3_carray_bind -blob -static $STMT2 3 1 2 3 4 5 6 7
+  run_stmt $STMT2
+} {blob}
+do_test 200 {
+  sqlite3_carray_bind -blob -transient $STMT 3 1 2 3 4 5 6 7
+  run_stmt $STMT
+} {0}
+do_test 300 {
+  sqlite3_carray_bind $STMT 3
+  run_stmt $STMT
+} {0}
+
+sqlite3_finalize $STMT
+sqlite3_finalize $STMT2
+
+finish_test
diff --git a/test/cast.test b/test/cast.test
new file mode 100644
index 0000000000000000000000000000000000000000..1c9071d775a6a7092edec65d7c2dda690094b3a2
--- /dev/null
+++ b/test/cast.test
@@ -0,0 +1,555 @@
+# 2005 June 25
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the CAST operator.
+#
+# $Id: cast.test,v 1.10 2008/11/06 15:33:04 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Only run these tests if the build includes the CAST operator
+ifcapable !cast {
+  finish_test
+  return
+}
+
+# Tests for the CAST( AS blob), CAST( AS text) and CAST( AS numeric) built-ins
+#
+ifcapable bloblit {
+  do_test cast-1.1 {
+    execsql {SELECT x'616263'}
+  } abc
+  do_test cast-1.2 {
+    execsql {SELECT typeof(x'616263')}
+  } blob
+  do_test cast-1.3 {
+    execsql {SELECT CAST(x'616263' AS text)}
+  } abc
+  do_test cast-1.4 {
+    execsql {SELECT typeof(CAST(x'616263' AS text))}
+  } text
+  do_test cast-1.5 {
+    execsql {SELECT CAST(x'616263' AS numeric)}
+  } 0
+  do_test cast-1.6 {
+    execsql {SELECT typeof(CAST(x'616263' AS numeric))}
+  } integer
+  do_test cast-1.7 {
+    execsql {SELECT CAST(x'616263' AS blob)}
+  } abc
+  do_test cast-1.8 {
+    execsql {SELECT typeof(CAST(x'616263' AS blob))}
+  } blob
+  do_test cast-1.9 {
+    execsql {SELECT CAST(x'616263' AS integer)}
+  } 0
+  do_test cast-1.10 {
+    execsql {SELECT typeof(CAST(x'616263' AS integer))}
+  } integer
+}
+do_test cast-1.11 {
+  execsql {SELECT null}
+} {{}}
+do_test cast-1.12 {
+  execsql {SELECT typeof(NULL)}
+} null
+do_test cast-1.13 {
+  execsql {SELECT CAST(NULL AS text)}
+} {{}}
+do_test cast-1.14 {
+  execsql {SELECT typeof(CAST(NULL AS text))}
+} null
+do_test cast-1.15 {
+  execsql {SELECT CAST(NULL AS numeric)}
+} {{}}
+do_test cast-1.16 {
+  execsql {SELECT typeof(CAST(NULL AS numeric))}
+} null
+do_test cast-1.17 {
+  execsql {SELECT CAST(NULL AS blob)}
+} {{}}
+do_test cast-1.18 {
+  execsql {SELECT typeof(CAST(NULL AS blob))}
+} null
+do_test cast-1.19 {
+  execsql {SELECT CAST(NULL AS integer)}
+} {{}}
+do_test cast-1.20 {
+  execsql {SELECT typeof(CAST(NULL AS integer))}
+} null
+do_test cast-1.21 {
+  execsql {SELECT 123}
+} {123}
+do_test cast-1.22 {
+  execsql {SELECT typeof(123)}
+} integer
+do_test cast-1.23 {
+  execsql {SELECT CAST(123 AS text)}
+} {123}
+do_test cast-1.24 {
+  execsql {SELECT typeof(CAST(123 AS text))}
+} text
+do_test cast-1.25 {
+  execsql {SELECT CAST(123 AS numeric)}
+} 123
+do_test cast-1.26 {
+  execsql {SELECT typeof(CAST(123 AS numeric))}
+} integer
+do_test cast-1.27 {
+  execsql {SELECT CAST(123 AS blob)}
+} {123}
+do_test cast-1.28 {
+  execsql {SELECT typeof(CAST(123 AS blob))}
+} blob
+do_test cast-1.29 {
+  execsql {SELECT CAST(123 AS integer)}
+} {123}
+do_test cast-1.30 {
+  execsql {SELECT typeof(CAST(123 AS integer))}
+} integer
+do_test cast-1.31 {
+  execsql {SELECT 123.456}
+} {123.456}
+do_test cast-1.32 {
+  execsql {SELECT typeof(123.456)}
+} real
+do_test cast-1.33 {
+  execsql {SELECT CAST(123.456 AS text)}
+} {123.456}
+do_test cast-1.34 {
+  execsql {SELECT typeof(CAST(123.456 AS text))}
+} text
+do_test cast-1.35 {
+  execsql {SELECT CAST(123.456 AS numeric)}
+} 123.456
+do_test cast-1.36 {
+  execsql {SELECT typeof(CAST(123.456 AS numeric))}
+} real
+do_test cast-1.37 {
+  execsql {SELECT CAST(123.456 AS blob)}
+} {123.456}
+do_test cast-1.38 {
+  execsql {SELECT typeof(CAST(123.456 AS blob))}
+} blob
+do_test cast-1.39 {
+  execsql {SELECT CAST(123.456 AS integer)}
+} {123}
+do_test cast-1.38 {
+  execsql {SELECT typeof(CAST(123.456 AS integer))}
+} integer
+do_test cast-1.41 {
+  execsql {SELECT '123abc'}
+} {123abc}
+do_test cast-1.42 {
+  execsql {SELECT typeof('123abc')}
+} text
+do_test cast-1.43 {
+  execsql {SELECT CAST('123abc' AS text)}
+} {123abc}
+do_test cast-1.44 {
+  execsql {SELECT typeof(CAST('123abc' AS text))}
+} text
+do_test cast-1.45 {
+  execsql {SELECT CAST('123abc' AS numeric)}
+} 123
+do_test cast-1.46 {
+  execsql {SELECT typeof(CAST('123abc' AS numeric))}
+} integer
+do_test cast-1.47 {
+  execsql {SELECT CAST('123abc' AS blob)}
+} {123abc}
+do_test cast-1.48 {
+  execsql {SELECT typeof(CAST('123abc' AS blob))}
+} blob
+do_test cast-1.49 {
+  execsql {SELECT CAST('123abc' AS integer)}
+} 123
+do_test cast-1.50 {
+  execsql {SELECT typeof(CAST('123abc' AS integer))}
+} integer
+do_test cast-1.51 {
+  execsql {SELECT CAST('123.5abc' AS numeric)}
+} 123.5
+do_test cast-1.53 {
+  execsql {SELECT CAST('123.5abc' AS integer)}
+} 123
+
+do_test cast-1.60 {
+  execsql {SELECT CAST(null AS REAL)}
+} {{}}
+do_test cast-1.61 {
+  execsql {SELECT typeof(CAST(null AS REAL))}
+} {null}
+do_test cast-1.62 {
+  execsql {SELECT CAST(1 AS REAL)}
+} {1.0}
+do_test cast-1.63 {
+  execsql {SELECT typeof(CAST(1 AS REAL))}
+} {real}
+do_test cast-1.64 {
+  execsql {SELECT CAST('1' AS REAL)}
+} {1.0}
+do_test cast-1.65 {
+  execsql {SELECT typeof(CAST('1' AS REAL))}
+} {real}
+do_test cast-1.66 {
+  execsql {SELECT CAST('abc' AS REAL)}
+} {0.0}
+do_test cast-1.67 {
+  execsql {SELECT typeof(CAST('abc' AS REAL))}
+} {real}
+do_test cast-1.68 {
+  execsql {SELECT CAST(x'31' AS REAL)}
+} {1.0}
+do_test cast-1.69 {
+  execsql {SELECT typeof(CAST(x'31' AS REAL))}
+} {real}
+
+
+# Ticket #1662.  Ignore leading spaces in numbers when casting.
+#
+do_test cast-2.1 {
+  execsql {SELECT CAST('   123' AS integer)}
+} 123
+do_test cast-2.2 {
+  execsql {SELECT CAST('   -123.456' AS real)}
+} -123.456
+
+# ticket #2364.  Use full percision integers if possible when casting
+# to numeric.  Do not fallback to real (and the corresponding 48-bit
+# mantissa) unless absolutely necessary.
+#
+do_test cast-3.1 {
+  execsql {SELECT CAST(9223372036854774800 AS integer)}
+} 9223372036854774800
+do_test cast-3.2 {
+  execsql {SELECT CAST(9223372036854774800 AS numeric)}
+} 9223372036854774800
+breakpoint
+do_realnum_test cast-3.3 {
+  execsql {SELECT CAST(9223372036854774800 AS real)}
+} 9.22337203685477e+18
+do_test cast-3.4 {
+  execsql {SELECT CAST(CAST(9223372036854774800 AS real) AS integer)}
+} 9223372036854774784
+do_test cast-3.5 {
+  execsql {SELECT CAST(-9223372036854774800 AS integer)}
+} -9223372036854774800
+do_test cast-3.6 {
+  execsql {SELECT CAST(-9223372036854774800 AS numeric)}
+} -9223372036854774800
+do_realnum_test cast-3.7 {
+  execsql {SELECT CAST(-9223372036854774800 AS real)}
+} -9.22337203685477e+18
+do_test cast-3.8 {
+  execsql {SELECT CAST(CAST(-9223372036854774800 AS real) AS integer)}
+} -9223372036854774784
+do_test cast-3.11 {
+  execsql {SELECT CAST('9223372036854774800' AS integer)}
+} 9223372036854774800
+do_test cast-3.12 {
+  execsql {SELECT CAST('9223372036854774800' AS numeric)}
+} 9223372036854774800
+do_realnum_test cast-3.13 {
+  execsql {SELECT CAST('9223372036854774800' AS real)}
+} 9.22337203685477e+18
+do_test cast-3.14 {
+  execsql {SELECT CAST(CAST('9223372036854774800' AS real) AS integer)}
+} 9223372036854774784
+do_test cast-3.15 {
+  execsql {SELECT CAST('-9223372036854774800' AS integer)}
+} -9223372036854774800
+do_test cast-3.16 {
+  execsql {SELECT CAST('-9223372036854774800' AS numeric)}
+} -9223372036854774800
+do_realnum_test cast-3.17 {
+  execsql {SELECT CAST('-9223372036854774800' AS real)}
+} -9.22337203685477e+18
+do_test cast-3.18 {
+  execsql {SELECT CAST(CAST('-9223372036854774800' AS real) AS integer)}
+} -9223372036854774784
+if {[db eval {PRAGMA encoding}]=="UTF-8"} {
+  do_test cast-3.21 {
+    execsql {SELECT CAST(x'39323233333732303336383534373734383030' AS integer)}
+  } 9223372036854774800
+  do_test cast-3.22 {
+    execsql {SELECT CAST(x'39323233333732303336383534373734383030' AS numeric)}
+  } 9223372036854774800
+  do_realnum_test cast-3.23 {
+    execsql {SELECT CAST(x'39323233333732303336383534373734383030' AS real)}
+  } 9.22337203685477e+18
+  do_test cast-3.24 {
+    execsql {
+      SELECT CAST(CAST(x'39323233333732303336383534373734383030' AS real)
+                  AS integer)
+    }
+  } 9223372036854774784
+}
+do_test cast-3.31 {
+  execsql {SELECT CAST(NULL AS numeric)}
+} {{}}
+
+# Test to see if it is possible to trick SQLite into reading past 
+# the end of a blob when converting it to a number.
+do_test cast-3.32.1 {
+  set blob "1234567890"
+  set DB [sqlite3_connection_pointer db]
+  set ::STMT [sqlite3_prepare $DB {SELECT CAST(? AS real)} -1 TAIL]
+  sqlite3_bind_blob -static $::STMT 1 $blob 5
+  sqlite3_step $::STMT
+} {SQLITE_ROW}
+do_test cast-3.32.2 {
+  sqlite3_column_int $::STMT 0
+} {12345}
+do_test cast-3.32.3 {
+  sqlite3_finalize $::STMT
+} {SQLITE_OK}
+
+
+do_test cast-4.1 {
+  db eval {
+    CREATE TABLE t1(a);
+    INSERT INTO t1 VALUES('abc');
+    SELECT a, CAST(a AS integer) FROM t1;
+  }
+} {abc 0}
+do_test cast-4.2 {
+  db eval {
+    SELECT CAST(a AS integer), a FROM t1;
+  }
+} {0 abc}
+do_test cast-4.3 {
+  db eval {
+    SELECT a, CAST(a AS integer), a FROM t1;
+  }
+} {abc 0 abc}
+do_test cast-4.4 {
+  db eval {
+    SELECT CAST(a AS integer), a, CAST(a AS real), a FROM t1;
+  }
+} {0 abc 0.0 abc}
+
+# Added 2018-01-26
+#
+# EVIDENCE-OF: R-48741-32454 If the prefix integer is greater than
+# +9223372036854775807 then the result of the cast is exactly
+# +9223372036854775807.
+do_execsql_test cast-5.1 {
+  SELECT CAST('9223372036854775808' AS integer);
+  SELECT CAST('  +000009223372036854775808' AS integer);
+  SELECT CAST('12345678901234567890123' AS INTEGER);
+} {9223372036854775807 9223372036854775807 9223372036854775807}
+
+# EVIDENCE-OF: R-06028-16857 Similarly, if the prefix integer is less
+# than -9223372036854775808 then the result of the cast is exactly
+# -9223372036854775808.
+do_execsql_test cast-5.2 {
+  SELECT CAST('-9223372036854775808' AS integer);
+  SELECT CAST('-9223372036854775809' AS integer);
+  SELECT CAST('-12345678901234567890123' AS INTEGER);
+} {-9223372036854775808 -9223372036854775808 -9223372036854775808}
+
+# EVIDENCE-OF: R-33990-33527 When casting to INTEGER, if the text looks
+# like a floating point value with an exponent, the exponent will be
+# ignored because it is no part of the integer prefix.
+# EVIDENCE-OF: R-24225-46995 For example, "(CAST '123e+5' AS INTEGER)"
+# results in 123, not in 12300000.
+do_execsql_test cast-5.3 {
+  SELECT CAST('123e+5' AS INTEGER);
+  SELECT CAST('123e+5' AS NUMERIC);
+  SELECT CAST('123e+5' AS REAL);
+} {123 12300000 12300000.0}
+
+
+# The following does not have anything to do with the CAST operator,
+# but it does deal with affinity transformations.
+#
+do_execsql_test cast-6.1 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a NUMERIC);
+  INSERT INTO t1 VALUES
+     ('9000000000000000001'),
+     ('9000000000000000001 '),
+     (' 9000000000000000001'),
+     (' 9000000000000000001 ');
+  SELECT * FROM t1;
+} {9000000000000000001 9000000000000000001 9000000000000000001 9000000000000000001}
+
+# 2019-06-07
+# https://www.sqlite.org/src/info/4c2d7639f076aa7c
+do_execsql_test cast-7.1 {
+  SELECT CAST('-' AS NUMERIC);
+} {0}
+do_execsql_test cast-7.2 {
+  SELECT CAST('-0' AS NUMERIC);
+} {0}
+do_execsql_test cast-7.3 {
+  SELECT CAST('+' AS NUMERIC);
+} {0}
+do_execsql_test cast-7.4 {
+  SELECT CAST('/' AS NUMERIC);
+} {0}
+
+# 2019-06-07
+# https://www.sqlite.org/src/info/e8bedb2a184001bb
+do_execsql_test cast-7.10 {
+  SELECT '' - 2851427734582196970;
+} {-2851427734582196970}
+do_execsql_test cast-7.11 {
+  SELECT 0 - 2851427734582196970;
+} {-2851427734582196970}
+do_execsql_test cast-7.12 {
+  SELECT '' - 1;
+} {-1}
+
+# 2019-06-10
+# https://www.sqlite.org/src/info/dd6bffbfb6e61db9
+#
+# EVIDENCE-OF: R-55084-10555 Casting a TEXT or BLOB value into NUMERIC
+# yields either an INTEGER or a REAL result.
+#
+do_execsql_test cast-7.20 {
+  DROP TABLE IF EXISTS t0;
+  CREATE TABLE t0 (c0 TEXT);
+  INSERT INTO t0(c0) VALUES ('1.0');
+  SELECT CAST(c0 AS NUMERIC) FROM t0;
+} {1}
+
+# 2019-06-10
+# https://sqlite.org/src/info/27de823723a41df45af3
+#
+do_execsql_test cast-7.30 {
+  SELECT -'.';
+} 0
+do_execsql_test cast-7.31 {
+  SELECT '.'+0;
+} 0
+do_execsql_test cast-7.32 {
+  SELECT CAST('.' AS numeric);
+} 0
+do_execsql_test cast-7.33 {
+  SELECT -CAST('.' AS numeric);
+} 0
+
+# 2019-06-12
+# https://www.sqlite.org/src/info/674385aeba91c774
+#
+do_execsql_test cast-7.40 {
+  SELECT CAST('-0.0' AS numeric);
+} 0
+do_execsql_test cast-7.41 {
+  SELECT CAST('0.0' AS numeric);
+} 0
+do_execsql_test cast-7.42 {
+  SELECT CAST('+0.0' AS numeric);
+} 0
+do_execsql_test cast-7.43 {
+  SELECT CAST('-1.0' AS numeric);
+} -1
+
+ifcapable utf16 {
+  reset_db
+  execsql { PRAGMA encoding='utf16' }
+
+  do_execsql_test cast-8.1 {
+    SELECT quote(X'310032003300')==quote(substr(X'310032003300', 1))
+  } 1
+  do_execsql_test cast-8.2 {
+    SELECT CAST(X'310032003300' AS TEXT)
+         ==CAST(substr(X'310032003300', 1) AS TEXT)
+  } 1
+}
+
+reset_db
+do_execsql_test cast-9.0 {
+  CREATE TABLE t0(c0);
+  INSERT INTO t0(c0) VALUES (0);
+  CREATE VIEW v1(c0, c1) AS 
+    SELECT CAST(0.0 AS NUMERIC), COUNT(*) OVER () FROM t0;
+  SELECT v1.c0 FROM v1, t0 WHERE v1.c0=0; 
+} {0.0}
+
+# Set the 2022-12-10 "reopen" of ticket [https://sqlite.org/src/tktview/57c47526c3]
+#
+do_execsql_test cast-9.1 {
+  CREATE TABLE dual(dummy TEXT);
+  INSERT INTO dual VALUES('X');
+  SELECT CAST(4 AS NUMERIC);
+} {4}
+do_execsql_test cast-9.2 {
+  SELECT CAST(4.0 AS NUMERIC);
+} {4.0}
+do_execsql_test cast-9.3 {
+  SELECT CAST(4.5 AS NUMERIC);
+} {4.5}
+do_execsql_test cast-9.4 {
+  SELECT x, typeof(x) FROM (SELECT CAST(4 AS NUMERIC) AS x) JOIN dual;
+} {4 integer}
+do_execsql_test cast-9.5 {
+  SELECT x, typeof(x) FROM dual CROSS JOIN (SELECT CAST(4 AS NUMERIC) AS x);
+} {4 integer}
+do_execsql_test cast-9.10 {
+  SELECT x, typeof(x) FROM (SELECT CAST(4.0 AS NUMERIC) AS x) JOIN dual;
+} {4.0 real}
+do_execsql_test cast-9.11 {
+  SELECT x, typeof(x) FROM dual CROSS JOIN (SELECT CAST(4.0 AS NUMERIC) AS x);
+} {4.0 real}
+do_execsql_test cast-9.12 {
+  SELECT x, typeof(x) FROM (SELECT CAST(4.5 AS NUMERIC) AS x) JOIN dual;
+} {4.5 real}
+do_execsql_test cast-9.13 {
+  SELECT x, typeof(x) FROM dual CROSS JOIN (SELECT CAST(4.5 AS NUMERIC) AS x);
+} {4.5 real}
+
+# 2022-12-15 dbsqlfuzz c9ee6f9a0a8b8fefb02cf69de2a8b67ca39525c8
+#
+# Added a new SQLITE_AFF_FLEXNUM that does not try to convert int to real or
+# real to int.
+#
+do_execsql_test cast-10.1 {
+  VALUES(CAST(44 AS REAL)),(55);
+} {44.0 55}
+do_execsql_test cast-10.2 {
+  SELECT CAST(44 AS REAL) AS 'm' UNION ALL SELECT 55;
+} {44.0 55}
+do_execsql_test cast-10.3 {
+  SELECT * FROM (VALUES(CAST(44 AS REAL)),(55));
+} {44.0 55}
+do_execsql_test cast-10.4 {
+  SELECT * FROM (SELECT CAST(44 AS REAL) AS 'm' UNION ALL SELECT 55);
+} {44.0 55}
+do_execsql_test cast-10.5 {
+  SELECT * FROM dual CROSS JOIN (VALUES(CAST(44 AS REAL)),(55));
+} {X 44.0 X 55}
+do_execsql_test cast-10.6 {
+  SELECT * FROM dual CROSS JOIN (SELECT CAST(44 AS REAL) AS 'm'
+                                 UNION ALL SELECT 55);
+} {X 44.0 X 55}
+ifcapable vtab {
+  do_execsql_test cast-10.7 {
+    DROP VIEW v1;
+    CREATE VIEW v1 AS SELECT CAST(44 AS REAL) AS 'm' UNION ALL SELECT 55;
+    SELECT name, type FROM pragma_table_info('v1');
+  } {m NUM}
+  do_execsql_test cast-10.8 {
+    CREATE VIEW v2 AS VALUES(CAST(44 AS REAL)),(55);
+    SELECT type FROM pragma_table_info('v2');
+  } {NUM}
+  do_execsql_test cast-10.9 {
+    SELECT * FROM v1;
+  } {44.0 55}
+  do_execsql_test cast-10.10 {
+    SELECT * FROM v2;
+  } {44.0 55}
+}
+
+finish_test
diff --git a/test/cffault.test b/test/cffault.test
new file mode 100644
index 0000000000000000000000000000000000000000..0d029ece37d8f70e116e27bb2808bf719223f707
--- /dev/null
+++ b/test/cffault.test
@@ -0,0 +1,158 @@
+# 2011 November 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains fault-injection test cases for the 
+# sqlite3_db_cacheflush API.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix cffault
+source $testdir/malloc_common.tcl
+
+# Run the supplied SQL on a copy of the database currently stored on 
+# disk in file $dbfile.
+proc diskquery {dbfile sql} {
+  forcecopy $dbfile dq.db
+  sqlite3 dq dq.db
+  set res [execsql $sql dq]
+  dq close
+  set res
+}
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a PRIMARY KEY, b);
+  CREATE INDEX i1 ON t1(b);
+  INSERT INTO t1 VALUES(1, 2);
+  INSERT INTO t1 VALUES(3, 4);
+  INSERT INTO t1 VALUES(5, 6);
+  INSERT INTO t1 VALUES(7, 8);
+}
+faultsim_save_and_close
+
+do_faultsim_test 1.1 -prep {
+  faultsim_restore_and_reopen
+  db eval {
+    BEGIN;
+      UPDATE t1 SET b=b+1;
+  }
+} -body {
+  sqlite3_db_cacheflush db
+} -test {
+  if {[sqlite3_get_autocommit db]} { error "Transaction rolled back!" }
+  faultsim_test_result {0 {}} {1 {disk I/O error}}
+  catch { db eval COMMIT }
+  faultsim_integrity_check
+}
+
+do_faultsim_test 1.2 -prep {
+  faultsim_restore_and_reopen
+  db eval {
+    BEGIN;
+      UPDATE t1 SET b=b+1;
+  }
+} -body {
+  set result [list]
+  db eval { SELECT * FROM t1 } {
+    if {$a==5} { catch { sqlite3_db_cacheflush db } }
+    lappend result $a $b
+  }
+  set result
+} -test {
+  faultsim_test_result {0 {1 3 3 5 5 7 7 9}} {1 {disk I/O error}}
+  catch { db eval COMMIT }
+  faultsim_integrity_check
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 2.0 {
+  CREATE TABLE t1(a PRIMARY KEY, b, c);
+  CREATE INDEX i1 ON t1(b);
+  CREATE INDEX i2 ON t1(c, b);
+  INSERT INTO t1 VALUES(1, 2,  randomblob(600));
+  INSERT INTO t1 VALUES(3, 4,  randomblob(600));
+  INSERT INTO t1 VALUES(5, 6,  randomblob(600));
+  INSERT INTO t1 VALUES(7, 8,  randomblob(600));
+  INSERT INTO t1 VALUES(9, 10, randomblob(600));
+}
+faultsim_save_and_close
+
+do_faultsim_test 2.1 -prep {
+  faultsim_restore_and_reopen
+  db eval {
+    BEGIN;
+      UPDATE t1 SET b=b+1;
+  }
+} -body {
+  set result [list]
+  db eval { SELECT * FROM t1 } {
+    if {$a==5} { catch { sqlite3_db_cacheflush db } }
+    lappend result $a $b
+  }
+  set result
+} -test {
+  faultsim_test_result {0 {1 3 3 5 5 7 7 9 9 11}} {1 {disk I/O error}}
+  catch { db eval { INSERT INTO t1 VALUES(11, 12, randomblob(600)) } }
+  catch { db eval COMMIT }
+  faultsim_integrity_check
+}
+
+do_faultsim_test 2.2 -prep {
+  faultsim_restore_and_reopen
+  db eval {
+    BEGIN;
+      UPDATE t1 SET b=b+1;
+  }
+} -body {
+  sqlite3_db_cacheflush db
+} -test {
+  if {[sqlite3_get_autocommit db]} { error "Transaction rolled back!" }
+  faultsim_test_result {0 {}} {1 {disk I/O error}}
+  catch { db eval { SELECT * FROM t1 } }
+  catch { db eval COMMIT }
+  faultsim_integrity_check
+}
+
+do_faultsim_test 2.3 -prep {
+  faultsim_restore_and_reopen
+  db eval {
+    BEGIN;
+      UPDATE t1 SET b=b-1;
+  }
+} -body {
+  sqlite3_db_cacheflush db
+} -test {
+  if {[sqlite3_get_autocommit db]} { error "Transaction rolled back!" }
+  faultsim_test_result {0 {}} {1 {disk I/O error}}
+  catch { db eval { INSERT INTO t1 VALUES(11, 12, randomblob(600)) } }
+  catch { db eval COMMIT }
+  faultsim_integrity_check
+}
+
+do_faultsim_test 2.4 -prep {
+  faultsim_restore_and_reopen
+  db eval {
+    BEGIN;
+      UPDATE t1 SET b=b-1;
+  }
+} -body {
+  catch { sqlite3_db_cacheflush db }
+  catch { sqlite3_db_release_memory db }
+  catch { sqlite3_db_cacheflush db }
+  execsql { SELECT a, b FROM t1 }
+} -test {
+  faultsim_test_result {0 {1 1 3 3 5 5 7 7 9 9}} {1 {disk I/O error}}
+  catchsql ROLLBACK
+  faultsim_integrity_check
+}
+
+finish_test
diff --git a/test/changes.test b/test/changes.test
new file mode 100644
index 0000000000000000000000000000000000000000..b3a2ae1eefcf0fb881d971fa527d36c2c4b3bd25
--- /dev/null
+++ b/test/changes.test
@@ -0,0 +1,88 @@
+# 2021 June 22
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests for the sqlite3_changes() and sqlite3_total_changes() APIs.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix changes
+
+# To test that the change-counters do not suffer from 32-bit signed integer 
+# rollover, add the following line to the array of test cases below. The
+# test will take will over an hour to run.
+#
+#   7 (1<<31)+10 ""
+#
+
+foreach {tn nRow wor} {
+  1 50 ""
+  2 50 "WITHOUT ROWID"
+
+  3 5000 ""
+  4 5000 "WITHOUT ROWID"
+
+  5 50000 ""
+  6 50000 "WITHOUT ROWID"
+} {
+  reset_db
+  set nBig [expr $nRow]
+  
+  do_execsql_test 1.$tn.0 "
+    PRAGMA journal_mode = off;
+    CREATE TABLE t1(x INTEGER PRIMARY KEY) $wor;
+  " {off}
+  
+  do_execsql_test 1.$tn.1 {
+    WITH s(i) AS (
+      SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i < $nBig
+    )
+    INSERT INTO t1 SELECT i FROM s;
+  }
+  
+  do_test 1.$tn.2 {
+    db changes
+  } [expr $nBig]
+  
+  do_test 1.$tn.3 {
+    db total_changes
+  } [expr $nBig]
+  
+  do_execsql_test 1.$tn.4 {
+    INSERT INTO t1 VALUES(-1)
+  }
+  
+  do_test 1.$tn.5 {
+    db changes
+  } [expr 1]
+  
+  do_test 1.$tn.6 {
+    db total_changes
+  } [expr {$nBig+1}]
+  
+  do_execsql_test 1.$tn.7a {
+    SELECT count(*) FROM t1
+  } [expr {$nBig+1}]
+  
+  do_execsql_test 1.$tn.7 {
+    DELETE FROM t1
+  }
+  
+  do_test 1.$tn.8 {
+    db changes
+  } [expr {$nBig+1}]
+  
+  do_test 1.$tn.9 {
+    db total_changes
+  } [expr {2*($nBig+1)}]
+}
+
+finish_test
diff --git a/test/changes2.test b/test/changes2.test
new file mode 100644
index 0000000000000000000000000000000000000000..5b2684a8df22c941be8a025e85e2abe1d6b43817
--- /dev/null
+++ b/test/changes2.test
@@ -0,0 +1,94 @@
+# 2022 June 6
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix changes2
+
+do_execsql_test 1.0 {
+  CREATE TABLE some_table ( 
+    id INTEGER NOT NULL, value VARCHAR(40) NOT NULL, PRIMARY KEY (id)
+  );
+  INSERT INTO some_table (id, value) VALUES (1, 'v1');
+} {}
+
+set ::stmt [sqlite3_prepare_v2 db {
+  UPDATE some_table SET value='v2' WHERE id=1 RETURNING id
+} -1 dummy]
+
+do_test 1.1 {
+  list [sqlite3_step $::stmt] [db changes]
+} {SQLITE_ROW 1}
+
+do_test 1.2 {
+  list [sqlite3_step $::stmt] [db changes]
+} {SQLITE_DONE 1}
+
+sqlite3_reset $::stmt
+
+do_execsql_test 1.2 {
+  DROP TABLE some_table;
+  CREATE TABLE some_table ( 
+    id INTEGER NOT NULL, value VARCHAR(40) NOT NULL, PRIMARY KEY (id)
+  );
+  INSERT INTO some_table (id, value) VALUES (1, 'v1');
+} {}
+
+do_test 1.3 {
+  list [sqlite3_step $::stmt] [db changes]
+} {SQLITE_ROW 1}
+
+do_test 1.4 {
+  list [sqlite3_step $::stmt] [db changes]
+} {SQLITE_DONE 1}
+
+sqlite3_finalize $::stmt
+
+#-------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 2.0 {
+  CREATE TABLE t1(a, b);
+  CREATE TABLE log(t);
+} {}
+
+set ::stmt [sqlite3_prepare_v2 db {
+  INSERT INTO log VALUES(changes() || ' changes')
+} -1 dummy]
+
+do_execsql_test 2.1 {
+  INSERT INTO t1 VALUES (1, 'v1'), (2, 'v2');
+} {}
+
+do_test 2.2 {
+  list [sqlite3_step $::stmt] [sqlite3_reset $::stmt]
+} {SQLITE_DONE SQLITE_OK}
+
+do_execsql_test 2.3 {
+  CREATE TABLE t3(x);
+}
+
+do_execsql_test 2.2 {
+  INSERT INTO t1 VALUES (3, 'v1'), (4, 'v2');
+} {}
+
+do_test 2.3 {
+  list [sqlite3_step $::stmt] [sqlite3_reset $::stmt]
+} {SQLITE_DONE SQLITE_OK}
+
+sqlite3_finalize $::stmt
+
+do_execsql_test 2.4 {
+  SELECT * FROM log;
+} {{2 changes} {2 changes}}
+
+finish_test
diff --git a/test/check.test b/test/check.test
new file mode 100644
index 0000000000000000000000000000000000000000..10d1cf4be67bf84bfb707ae10686801f096e7f1c
--- /dev/null
+++ b/test/check.test
@@ -0,0 +1,615 @@
+# 2005 November 2
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing CHECK constraints
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix check
+
+# Only run these tests if the build includes support for CHECK constraints
+ifcapable !check {
+  finish_test
+  return
+}
+sqlite3_db_config db SQLITE_DBCONFIG_DQS_DDL 1
+sqlite3_db_config db SQLITE_DBCONFIG_DQS_DML 1
+
+do_test check-1.1 {
+  execsql {
+    CREATE TABLE t1(
+      x INTEGER CHECK( x<5 ),
+      y REAL CHECK( y>x )
+    );
+  }
+} {}
+do_test check-1.2 {
+  execsql {
+    INSERT INTO t1 VALUES(3,4);
+    SELECT * FROM t1;
+  }  
+} {3 4.0}
+do_test check-1.3 {
+  catchsql {
+    INSERT INTO t1 VALUES(6,7);
+  }
+} {1 {CHECK constraint failed: x<5}}
+do_test check-1.4 {
+  execsql {
+    SELECT * FROM t1;
+  }  
+} {3 4.0}
+do_test check-1.5 {
+  catchsql {
+    INSERT INTO t1 VALUES(4,3);
+  }
+} {1 {CHECK constraint failed: y>x}}
+do_test check-1.6 {
+  execsql {
+    SELECT * FROM t1;
+  }  
+} {3 4.0}
+do_test check-1.7 {
+  catchsql {
+    INSERT INTO t1 VALUES(NULL,6);
+  }
+} {0 {}}
+do_test check-1.8 {
+  execsql {
+    SELECT * FROM t1;
+  }  
+} {3 4.0 {} 6.0}
+do_test check-1.9 {
+  catchsql {
+    INSERT INTO t1 VALUES(2,NULL);
+  }
+} {0 {}}
+do_test check-1.10 {
+  execsql {
+    SELECT * FROM t1;
+  }  
+} {3 4.0 {} 6.0 2 {}}
+do_test check-1.11 {
+  execsql {
+    DELETE FROM t1 WHERE x IS NULL OR x!=3;
+    UPDATE t1 SET x=2 WHERE x==3;
+    SELECT * FROM t1;
+  }
+} {2 4.0}
+do_test check-1.12 {
+  catchsql {
+    UPDATE t1 SET x=7 WHERE x==2
+  }
+} {1 {CHECK constraint failed: x<5}}
+do_test check-1.13 {
+  execsql {
+    SELECT * FROM t1;
+  }
+} {2 4.0}
+do_test check-1.14 {
+  catchsql {
+    UPDATE t1 SET x=5 WHERE x==2
+  }
+} {1 {CHECK constraint failed: x<5}}
+do_test check-1.15 {
+  execsql {
+    SELECT * FROM t1;
+  }
+} {2 4.0}
+do_test check-1.16 {
+  catchsql {
+    UPDATE t1 SET x=4, y=11 WHERE x==2
+  }
+} {0 {}}
+do_test check-1.17 {
+  execsql {
+    SELECT * FROM t1;
+  }
+} {4 11.0}
+
+do_test check-2.1 {
+  execsql {
+    PRAGMA writable_schema = 1;
+    CREATE TABLE t2(
+      x INTEGER CONSTRAINT one CHECK( typeof(coalesce(x,0))=="integer" ),
+      y REAL CONSTRAINT two CHECK( typeof(coalesce(y,0.1))=='real' ),
+      z TEXT CONSTRAINT three CHECK( typeof(coalesce(z,''))=='text' )
+    );
+    CREATE TABLE t2n(
+      x INTEGER CONSTRAINT one CHECK( typeof(coalesce(x,0))=="integer" ),
+      y NUMERIC CONSTRAINT two CHECK( typeof(coalesce(y,0.1))=='real' ),
+      z TEXT CONSTRAINT three CHECK( typeof(coalesce(z,''))=='text' )
+    );
+    PRAGMA writable_schema = 0;
+  }
+} {}
+do_test check-2.2 {
+  execsql {
+    INSERT INTO t2 VALUES(1,2.2,'three');
+    SELECT * FROM t2;
+  }
+} {1 2.2 three}
+db close
+sqlite3 db test.db
+sqlite3_db_config db SQLITE_DBCONFIG_DQS_DDL 1
+sqlite3_db_config db SQLITE_DBCONFIG_DQS_DML 1
+do_test check-2.3 {
+  execsql {
+    INSERT INTO t2 VALUES(NULL, NULL, NULL);
+    SELECT * FROM t2;
+  }
+} {1 2.2 three {} {} {}}
+do_test check-2.4 {
+  catchsql {
+    INSERT INTO t2 VALUES(1.1, NULL, NULL);
+  }
+} {1 {CHECK constraint failed: one}}
+do_test check-2.5 {
+  # The 5 gets automatically promoted to 5.0 because the column type is REAL
+  catchsql {
+    INSERT INTO t2 VALUES(NULL, 5, NULL);
+  }
+} {0 {}}
+do_test check-2.5b {
+  # This time the column type is NUMERIC, so not automatic promption to REAL
+  # occurs and the constraint fails.
+  catchsql {
+    INSERT INTO t2n VALUES(NULL, 5, NULL);
+  }
+} {1 {CHECK constraint failed: two}}
+do_test check-2.6 {
+  catchsql {
+    INSERT INTO t2 VALUES(NULL, NULL, 3.14159);
+  }
+} {0 {}}
+
+# Undocumented behavior:  The CONSTRAINT name clause can follow a constraint.
+# Such a clause is ignored.  But the parser must accept it for backwards
+# compatibility.
+#
+do_test check-2.10 {
+  execsql {
+    CREATE TABLE t2b(
+      x INTEGER CHECK( typeof(coalesce(x,0))=='integer' ) CONSTRAINT one,
+      y TEXT PRIMARY KEY constraint two,
+      z INTEGER,
+      UNIQUE(x,z) constraint three
+    );
+  }
+} {}
+do_test check-2.11 {
+  catchsql {
+    INSERT INTO t2b VALUES('xyzzy','hi',5);
+  }
+} {1 {CHECK constraint failed: typeof(coalesce(x,0))=='integer'}}
+do_test check-2.12 {
+  execsql {
+    CREATE TABLE t2c(
+      x INTEGER CONSTRAINT x_one CONSTRAINT x_two
+          CHECK( typeof(coalesce(x,0))=='integer' )
+          CONSTRAINT x_two CONSTRAINT x_three,
+      y INTEGER, z INTEGER,
+      CONSTRAINT u_one UNIQUE(x,y,z) CONSTRAINT u_two
+    );
+  }
+} {}
+do_test check-2.13 {
+  catchsql {
+    INSERT INTO t2c VALUES('xyzzy',7,8);
+  }
+} {1 {CHECK constraint failed: x_two}}
+do_test check-2.cleanup {
+  execsql {
+    DROP TABLE IF EXISTS t2b;
+    DROP TABLE IF EXISTS t2c;
+    DROP TABLE IF EXISTS t2n;
+  }
+} {}
+
+ifcapable subquery {
+  do_test check-3.1 {
+    catchsql {
+      CREATE TABLE t3(
+        x, y, z,
+        CHECK( x<(SELECT min(x) FROM t1) )
+      );
+    }
+  } {1 {subqueries prohibited in CHECK constraints}}
+}
+
+do_test check-3.2 {
+  execsql {
+    SELECT name FROM sqlite_master ORDER BY name
+  }
+} {t1 t2}
+do_test check-3.3 {
+  catchsql {
+    CREATE TABLE t3(
+      x, y, z,
+      CHECK( q<x )
+    );
+  }
+} {1 {no such column: q}}
+do_test check-3.4 {
+  execsql {
+    SELECT name FROM sqlite_master ORDER BY name
+  }
+} {t1 t2}
+do_test check-3.5 {
+  catchsql {
+    CREATE TABLE t3(
+      x, y, z,
+      CHECK( t2.x<x )
+    );
+  }
+} {1 {no such column: t2.x}}
+do_test check-3.6 {
+  execsql {
+    SELECT name FROM sqlite_master ORDER BY name
+  }
+} {t1 t2}
+do_test check-3.7 {
+  catchsql {
+    CREATE TABLE t3(
+      x, y, z,
+      CHECK( t3.x<25 )
+    );
+  }
+} {0 {}}
+do_test check-3.8 {
+  execsql {
+    INSERT INTO t3 VALUES(1,2,3);
+    SELECT * FROM t3;
+  }
+} {1 2 3}
+do_test check-3.9 {
+  catchsql {
+    INSERT INTO t3 VALUES(111,222,333);
+  }
+} {1 {CHECK constraint failed: t3.x<25}}
+
+do_test check-4.1 {
+  execsql {
+    CREATE TABLE t4(x, y,
+      CHECK (
+           x+y==11
+        OR x*y==12
+        OR x/y BETWEEN 5 AND 8
+        OR -x==y+10
+      )
+    );
+  }
+} {}
+do_test check-4.2 {
+  execsql {
+    INSERT INTO t4 VALUES(1,10);
+    SELECT * FROM t4
+  }
+} {1 10}
+do_test check-4.3 {
+  execsql {
+    UPDATE t4 SET x=4, y=3;
+    SELECT * FROM t4
+  }
+} {4 3}
+do_test check-4.4 {
+  execsql {
+    UPDATE t4 SET x=12, y=2;
+    SELECT * FROM t4
+  }
+} {12 2}
+do_test check-4.5 {
+  execsql {
+    UPDATE t4 SET x=12, y=-22;
+    SELECT * FROM t4
+  }
+} {12 -22}
+do_test check-4.6 {
+  catchsql {
+    UPDATE t4 SET x=0, y=1;
+  }
+} {1 {CHECK constraint failed: x+y==11
+        OR x*y==12
+        OR x/y BETWEEN 5 AND 8
+        OR -x==y+10}}
+do_test check-4.7 {
+  execsql {
+    SELECT * FROM t4;
+  }
+} {12 -22}
+do_test check-4.8 {
+  execsql {
+    PRAGMA ignore_check_constraints=ON;
+    UPDATE t4 SET x=0, y=1;
+    SELECT * FROM t4;
+    PRAGMA integrity_check;
+  }
+} {0 1 ok}
+do_execsql_test check-4.8.1 {
+  PRAGMA ignore_check_constraints=OFF;
+  PRAGMA integrity_check;
+} {{CHECK constraint failed in t4}}
+do_test check-4.9 {
+  catchsql {
+    UPDATE t4 SET x=0, y=2;
+  }
+} {1 {CHECK constraint failed: x+y==11
+        OR x*y==12
+        OR x/y BETWEEN 5 AND 8
+        OR -x==y+10}}
+ifcapable vacuum {
+  do_test check_4.10 {
+    catchsql {
+      VACUUM
+    }
+  } {0 {}}
+}
+
+do_test check-5.1 {
+  catchsql {
+    CREATE TABLE t5(x, y,
+      CHECK( x*y<:abc )
+    );
+  }
+} {1 {parameters prohibited in CHECK constraints}}
+do_test check-5.2 {
+  catchsql {
+    CREATE TABLE t5(x, y,
+      CHECK( x*y<? )
+    );
+  }
+} {1 {parameters prohibited in CHECK constraints}}
+
+ifcapable conflict {
+
+do_test check-6.1 {
+  execsql {SELECT * FROM t1}
+} {4 11.0}
+do_test check-6.2 {
+  execsql {
+    UPDATE OR IGNORE t1 SET x=5;
+    SELECT * FROM t1;
+  }
+} {4 11.0}
+do_test check-6.3 {
+  execsql {
+    INSERT OR IGNORE INTO t1 VALUES(5,4.0);
+    SELECT * FROM t1;
+  }
+} {4 11.0}
+do_test check-6.4 {
+  execsql {
+    INSERT OR IGNORE INTO t1 VALUES(2,20.0);
+    SELECT * FROM t1;
+  }
+} {4 11.0 2 20.0}
+do_test check-6.5 {
+  catchsql {
+    UPDATE OR FAIL t1 SET x=7-x, y=y+1;
+  }
+} {1 {CHECK constraint failed: x<5}}
+do_test check-6.6 {
+  execsql {
+    SELECT * FROM t1;
+  }
+} {3 12.0 2 20.0}
+do_test check-6.7 {
+  catchsql {
+    BEGIN;
+    INSERT INTO t1 VALUES(1,30.0);
+    INSERT OR ROLLBACK INTO t1 VALUES(8,40.0);
+  }
+} {1 {CHECK constraint failed: x<5}}
+do_test check-6.8 {
+  catchsql {
+    COMMIT;
+  }
+} {1 {cannot commit - no transaction is active}}
+do_test check-6.9 {
+  execsql {
+    SELECT * FROM t1
+  }
+} {3 12.0 2 20.0}
+
+do_test check-6.11 {
+  execsql {SELECT * FROM t1}
+} {3 12.0 2 20.0}
+do_test check-6.12 {
+  catchsql {
+    REPLACE INTO t1 VALUES(6,7);
+  }
+} {1 {CHECK constraint failed: x<5}}
+do_test check-6.13 {
+  execsql {SELECT * FROM t1}
+} {3 12.0 2 20.0}
+do_test check-6.14 {
+  catchsql {
+    INSERT OR IGNORE INTO t1 VALUES(6,7);
+  }
+} {0 {}}
+do_test check-6.15 {
+  execsql {SELECT * FROM t1}
+} {3 12.0 2 20.0}
+
+
+}
+
+#--------------------------------------------------------------------------
+# If a connection opens a database that contains a CHECK constraint that
+# uses an unknown UDF, the schema should not be considered malformed.
+# Attempting to modify the table should fail (since the CHECK constraint
+# cannot be tested).
+#
+reset_db
+proc myfunc {x} {expr $x < 10}
+db func myfunc -deterministic myfunc
+
+do_execsql_test  7.1 { CREATE TABLE t6(a CHECK (myfunc(a))) }
+do_execsql_test  7.2 { INSERT INTO t6 VALUES(9)  }
+do_catchsql_test 7.3 { INSERT INTO t6 VALUES(11) } \
+          {1 {CHECK constraint failed: myfunc(a)}}
+
+do_test 7.4 {
+  sqlite3 db2 test.db
+  execsql { SELECT * FROM t6 } db2 
+} {9}
+
+do_test 7.5 {
+  catchsql { INSERT INTO t6 VALUES(8) } db2
+} {1 {unknown function: myfunc()}}
+
+do_test 7.6 {
+  catchsql { CREATE TABLE t7(a CHECK (myfunc(a))) } db2
+} {1 {no such function: myfunc}}
+
+do_test 7.7 {
+  db2 func myfunc myfunc
+  execsql { INSERT INTO t6 VALUES(8) } db2
+} {}
+
+do_test 7.8 {
+  db2 func myfunc myfunc
+  catchsql { INSERT INTO t6 VALUES(12) } db2
+} {1 {CHECK constraint failed: myfunc(a)}}
+
+# 2013-08-02:  Silently ignore database name qualifiers in CHECK constraints.
+#
+do_execsql_test 8.1 {
+  CREATE TABLE t810(a, CHECK( main.t810.a>0 ));
+  CREATE TABLE t811(b, CHECK( xyzzy.t811.b BETWEEN 5 AND 10 ));
+} {}
+
+# Make sure check constraints involving the ROWID are not ignored
+#
+do_execsql_test 9.1 {
+  CREATE TABLE t1(
+    a INTEGER PRIMARY KEY,
+    b INTEGER NOT NULL CONSTRAINT 'b-check' CHECK( b>a ),
+    c INTEGER NOT NULL CONSTRAINT 'c-check' CHECK( c>rowid*2 ),
+    d INTEGER NOT NULL CONSTRAINT 'd-check' CHECK( d BETWEEN b AND c )
+  );
+  INSERT INTO t1(a,b,c,d) VALUES(1,2,4,3),(2,4,6,5),(3,10,30,20);
+} {}
+do_catchsql_test 9.2 {
+  UPDATE t1 SET b=0 WHERE a=1;
+} {1 {CHECK constraint failed: b-check}}
+do_catchsql_test 9.3 {
+  UPDATE t1 SET c=a*2 WHERE a=1;
+} {1 {CHECK constraint failed: c-check}}
+
+# Integrity check on a VIEW with columns.
+#
+db close
+db2 close
+forcedelete test.db
+sqlite3 db test.db
+do_execsql_test 10.1 {
+  CREATE TABLE t1(x);
+  CREATE VIEW v1(y) AS SELECT x FROM t1;
+  PRAGMA integrity_check;
+} {ok}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 11.0 {
+  CREATE TABLE t1 (Col0 CHECK(1 COLLATE BINARY BETWEEN 1 AND 1) ) ;
+}
+do_execsql_test 11.1 {
+  INSERT INTO t1 VALUES (NULL);
+}
+do_execsql_test 11.2 {
+  INSERT  INTO t1 VALUES (NULL);
+}
+
+do_execsql_test 11.3 {
+  CREATE TABLE t2(b, a CHECK(
+      CASE 'abc' COLLATE nocase WHEN a THEN 1 ELSE 0 END)
+  );
+}
+do_execsql_test 11.4 {
+  INSERT INTO t2(a) VALUES('abc');
+}
+do_execsql_test 11.5 {
+  INSERT INTO t2(b, a) VALUES(1, 'abc'||'');
+}
+do_execsql_test 11.6 {
+  INSERT INTO t2(b, a) VALUES(2, 'abc');
+}
+
+# 2019-12-24 ticket b383b90278186263
+#
+reset_db
+do_execsql_test 12.10 {
+  CREATE TABLE t1(a TEXT, CHECK(a=+a));
+  INSERT INTO t1(a) VALUES(NULL),('xyz'),(5),(x'303132'),(4.75);
+  SELECT quote(a) FROM t1 ORDER BY rowid;
+} {NULL 'xyz' '5' X'303132' '4.75'}
+do_execsql_test 12.20 {
+  DROP TABLE t1;
+  CREATE TABLE t1(a TEXT, CHECK(a<>+a));
+  INSERT INTO t1(a) VALUES(NULL);
+} {}
+do_catchsql_test 12.21 {
+  INSERT INTO t1(a) VALUES('xyz');
+} {1 {CHECK constraint failed: a<>+a}}
+do_catchsql_test 12.22 {
+  INSERT INTO t1(a) VALUES(123);
+} {1 {CHECK constraint failed: a<>+a}}
+do_execsql_test 12.30 {
+  DROP TABLE t1;
+  CREATE TABLE t1(a TEXT, CHECK(NOT(a=+a)));
+  INSERT INTO t1(a) VALUES(NULL);
+} {}
+do_catchsql_test 12.31 {
+  INSERT INTO t1(a) VALUES('xyz');
+} {1 {CHECK constraint failed: NOT(a=+a)}}
+do_catchsql_test 12.32 {
+  INSERT INTO t1(a) VALUES(123);
+} {1 {CHECK constraint failed: NOT(a=+a)}}
+do_execsql_test 12.40 {
+  DROP TABLE t1;
+  CREATE TABLE t1(a TEXT, CHECK(NOT(a<>+a)));
+  INSERT INTO t1(a) VALUES(NULL),('xyz'),(5),(x'303132'),(4.75);
+  SELECT quote(a) FROM t1 ORDER BY rowid;
+} {NULL 'xyz' '5' X'303132' '4.75'}
+do_execsql_test 12.50 {
+  DROP TABLE t1;
+  CREATE TABLE t1(a TEXT, CHECK(a BETWEEN 0 AND +a));
+  INSERT INTO t1(a) VALUES(NULL),('xyz'),(5),(x'303132'),(4.75);
+  SELECT quote(a) FROM t1 ORDER BY rowid;
+} {NULL 'xyz' '5' X'303132' '4.75'}
+do_execsql_test 12.60 {
+  DROP TABLE t1;
+  CREATE TABLE t1(a TEXT, CHECK(a NOT BETWEEN 0 AND +a));
+  INSERT INTO t1(a) VALUES(NULL);
+  SELECT quote(a) FROM t1 ORDER BY rowid;
+} {NULL}
+do_catchsql_test 12.61 {
+  INSERT INTO t1(a) VALUES(456);
+} {1 {CHECK constraint failed: a NOT BETWEEN 0 AND +a}}
+do_execsql_test 12.70 {
+  DROP TABLE t1;
+  CREATE TABLE t1(a TEXT, CHECK(a BETWEEN +a AND 999999));
+  INSERT INTO t1(a) VALUES(NULL),(5);
+  SELECT quote(a) FROM t1 ORDER BY rowid;
+} {NULL '5'}
+do_execsql_test 12.80 {
+  DROP TABLE t1;
+  CREATE TABLE t1(a TEXT, CHECK(a NOT BETWEEN +a AND 999999));
+  INSERT INTO t1(a) VALUES(NULL);
+  SELECT quote(a) FROM t1 ORDER BY rowid;
+} {NULL}
+do_catchsql_test 12.81 {
+  INSERT INTO t1(a) VALUES(456);
+} {1 {CHECK constraint failed: a NOT BETWEEN +a AND 999999}}
+
+finish_test
diff --git a/test/checkfault.test b/test/checkfault.test
new file mode 100644
index 0000000000000000000000000000000000000000..3b18a64660a08236dceaf3f8b5a7d8afc0d9278e
--- /dev/null
+++ b/test/checkfault.test
@@ -0,0 +1,41 @@
+# 2019 July 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains fault-injection test cases for the 
+# sqlite3_db_cacheflush API.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix cffault
+source $testdir/malloc_common.tcl
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1 (Col0 CHECK(1 COLLATE BINARY BETWEEN 1 AND 1) ) ;
+  CREATE TABLE t2(b, a CHECK(
+      CASE 'abc' COLLATE nocase WHEN a THEN 1 ELSE 0 END)
+  );
+}
+
+do_faultsim_test 1.1 -faults oom* -body {
+  execsql { INSERT INTO t1 VALUES ('ABCDEFG') }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+do_faultsim_test 1.2 -faults oom* -body {
+  execsql { INSERT INTO t2(a) VALUES('abc') }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+
+finish_test
diff --git a/test/chunksize.test b/test/chunksize.test
new file mode 100644
index 0000000000000000000000000000000000000000..47d118d841db286103a5e4fa5a35186161dac9a3
--- /dev/null
+++ b/test/chunksize.test
@@ -0,0 +1,41 @@
+# 2019 June 5
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix chunksize
+
+if {$::tcl_platform(platform)!="unix"} {
+  finish_test
+  return
+}
+
+foreach {tn jrnlmode} {
+  1 delete
+  2 wal
+} {
+  reset_db
+  file_control_chunksize_test db main 32768
+  do_execsql_test $tn.0 " PRAGMA journal_mode = $jrnlmode " $jrnlmode
+  do_execsql_test $tn.1 {
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, 2);
+  }
+
+  execsql { PRAGMA wal_checkpoint }
+
+  do_test $tn.2 {
+    file size test.db
+  } 32768
+}
+
+finish_test
diff --git a/test/cksumvfs.test b/test/cksumvfs.test
new file mode 100644
index 0000000000000000000000000000000000000000..8c7bcf5511ac399ed616a6856dd75a9e4795efa0
--- /dev/null
+++ b/test/cksumvfs.test
@@ -0,0 +1,33 @@
+# 2024 March 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix cksumvfs
+
+sqlite3_register_cksumvfs
+db close
+sqlite3 db test.db
+file_control_reservebytes db 8
+
+set text [db one "SELECT hex(randomblob(5000))"]
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+  INSERT INTO t1 VALUES(1, $text);
+}
+
+do_execsql_test 1.1 {
+  SELECT * FROM t1;
+} [list 1 $text]
+
+finish_test
diff --git a/test/close.test b/test/close.test
new file mode 100644
index 0000000000000000000000000000000000000000..107c7a782e7b82566557bb40648d47334167a5ee
--- /dev/null
+++ b/test/close.test
@@ -0,0 +1,89 @@
+# 2013 May 14
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test some specific circumstances to do with shared cache mode.
+#
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix close
+
+# This module bypasses the "-key" logic in tester.tcl, so it cannot run
+# with the codec enabled.
+do_not_use_codec
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(x);
+  INSERT INTO t1 VALUES('one');
+  INSERT INTO t1 VALUES('two');
+  INSERT INTO t1 VALUES('three');
+}
+db close
+
+do_test 1.1 {
+  set DB [sqlite3_open test.db]
+  sqlite3_close_v2 $DB
+} {SQLITE_OK}
+
+do_test 1.2.1 {
+  set DB [sqlite3_open test.db]
+  set STMT [sqlite3_prepare $DB "SELECT * FROM t1" -1 dummy]
+  sqlite3_close_v2 $DB
+} {SQLITE_OK}
+do_test 1.2.2 {
+  sqlite3_finalize $STMT
+} {SQLITE_OK}
+
+do_test 1.3.1 {
+  set DB [sqlite3_open test.db]
+  set STMT [sqlite3_prepare $DB "SELECT * FROM t1" -1 dummy]
+  sqlite3_step $STMT
+  sqlite3_close_v2 $DB
+} {SQLITE_OK}
+
+do_test 1.3.2 {
+  sqlite3_column_text $STMT 0
+} {one}
+
+do_test 1.3.3 {
+  sqlite3_finalize $STMT
+} {SQLITE_OK}
+
+do_test 1.4.1 {
+  set DB [sqlite3_open test.db]
+  set STMT [sqlite3_prepare $DB "SELECT * FROM t1" -1 dummy]
+  sqlite3_step $STMT
+  sqlite3_close_v2 $DB
+} {SQLITE_OK}
+
+do_test 1.4.2 {
+  list [sqlite3_step $STMT] [sqlite3_column_text $STMT 0]
+} {SQLITE_ROW two}
+
+do_test 1.4.3 {
+  list [catch {
+    sqlite3_prepare $DB "SELECT * FROM sqlite_master" -1 dummy
+  } msg] $msg
+} {1 {(21) bad parameter or other API misuse}}
+
+do_test 1.4.4 {
+  sqlite3_finalize $STMT
+} {SQLITE_OK}
+
+do_test 1.5 {
+  set DB [sqlite3_open test.db]
+  sqlite3_blob_open $DB main t1 x 2 0 BLOB
+  sqlite3_close_v2 $DB
+  sqlite3_blob_close $BLOB
+} {}
+
+finish_test
diff --git a/test/closure01.test b/test/closure01.test
new file mode 100644
index 0000000000000000000000000000000000000000..ee3f2dd1d02b3a33642456c143897030847ae05c
--- /dev/null
+++ b/test/closure01.test
@@ -0,0 +1,295 @@
+# 2013-04-25
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+# Test cases for transitive_closure virtual table.
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix closure01
+
+ifcapable !vtab||!cte { finish_test ; return }
+
+load_static_extension db closure
+
+do_execsql_test 1.0 {
+  BEGIN;
+  CREATE TABLE t1(x INTEGER PRIMARY KEY, y INTEGER);
+  WITH RECURSIVE
+    cnt(i) AS (VALUES(1) UNION ALL SELECT i+1 FROM cnt LIMIT 131072)
+  INSERT INTO t1(x, y) SELECT i, nullif(i,1)/2 FROM cnt;
+  CREATE INDEX t1y ON t1(y);
+  COMMIT;
+  CREATE VIRTUAL TABLE cx 
+   USING transitive_closure(tablename=t1, idcolumn=x, parentcolumn=y);
+} {}
+
+# The entire table
+do_timed_execsql_test 1.1 {
+  SELECT count(*), depth FROM cx WHERE root=1 GROUP BY depth ORDER BY 1;
+} {/1 0 1 17 2 1 4 2 8 3 16 4 .* 65536 16/}
+do_timed_execsql_test 1.1-cte {
+  WITH RECURSIVE
+    below(id,depth) AS (
+      VALUES(1,0)
+       UNION ALL
+      SELECT t1.x, below.depth+1
+        FROM t1 JOIN below on t1.y=below.id
+    )
+  SELECT count(*), depth FROM below GROUP BY depth ORDER BY 1;
+} {/1 0 1 17 2 1 4 2 8 3 16 4 .* 65536 16/}
+
+# descendents of 32768
+do_timed_execsql_test 1.2 {
+  SELECT * FROM cx WHERE root=32768 ORDER BY id;
+} {32768 0 65536 1 65537 1 131072 2}
+do_timed_execsql_test 1.2-cte {
+  WITH RECURSIVE
+    below(id,depth) AS (
+      VALUES(32768,0)
+       UNION ALL
+      SELECT t1.x, below.depth+1
+        FROM t1 JOIN below on t1.y=below.id
+       WHERE below.depth<2
+    )
+  SELECT id, depth FROM below ORDER BY id;
+} {32768 0 65536 1 65537 1 131072 2}
+
+# descendents of 16384
+do_timed_execsql_test 1.3 {
+  SELECT * FROM cx WHERE root=16384 AND depth<=2 ORDER BY id;
+} {16384 0 32768 1 32769 1 65536 2 65537 2 65538 2 65539 2}
+do_timed_execsql_test 1.3-cte {
+  WITH RECURSIVE
+    below(id,depth) AS (
+      VALUES(16384,0)
+       UNION ALL
+      SELECT t1.x, below.depth+1
+        FROM t1 JOIN below on t1.y=below.id
+       WHERE below.depth<2
+    )
+  SELECT id, depth FROM below ORDER BY id;
+} {16384 0 32768 1 32769 1 65536 2 65537 2 65538 2 65539 2}
+
+# children of 16384
+do_execsql_test 1.4 {
+  SELECT id, depth, root, tablename, idcolumn, parentcolumn FROM cx
+   WHERE root=16384
+     AND depth=1
+   ORDER BY id;
+} {32768 1 {} t1 x y 32769 1 {} t1 x y}
+
+# great-grandparent of 16384
+do_timed_execsql_test 1.5 {
+  SELECT id, depth, root, tablename, idcolumn, parentcolumn FROM cx
+   WHERE root=16384
+     AND depth=3
+     AND idcolumn='Y'
+     AND parentcolumn='X';
+} {2048 3 {} t1 Y X}
+do_timed_execsql_test 1.5-cte {
+  WITH RECURSIVE
+    above(id,depth) AS (
+      VALUES(16384,0)
+      UNION ALL
+      SELECT t1.y, above.depth+1
+        FROM t1 JOIN above ON t1.x=above.id
+       WHERE above.depth<3
+    )
+  SELECT id FROM above WHERE depth=3;
+} {2048}
+
+# depth<5
+do_timed_execsql_test 1.6 {
+  SELECT count(*), depth FROM cx WHERE root=1 AND depth<5
+   GROUP BY depth ORDER BY 1;
+} {1 0 2 1 4 2 8 3 16 4}
+do_timed_execsql_test 1.6-cte {
+  WITH RECURSIVE
+    below(id,depth) AS (
+      VALUES(1,0)
+      UNION ALL
+      SELECT t1.x, below.depth+1
+        FROM t1 JOIN below ON t1.y=below.id
+       WHERE below.depth<4
+    )
+  SELECT count(*), depth FROM below GROUP BY depth ORDER BY 1;
+} {1 0 2 1 4 2 8 3 16 4}
+
+# depth<=5
+do_execsql_test 1.7 {
+  SELECT count(*), depth FROM cx WHERE root=1 AND depth<=5
+   GROUP BY depth ORDER BY 1;
+} {1 0 2 1 4 2 8 3 16 4 32 5}
+
+# depth==5
+do_execsql_test 1.8 {
+  SELECT count(*), depth FROM cx WHERE root=1 AND depth=5
+   GROUP BY depth ORDER BY 1;
+} {32 5}
+
+# depth BETWEEN 3 AND 5
+do_execsql_test 1.9 {
+  SELECT count(*), depth FROM cx WHERE root=1 AND depth BETWEEN 3 AND 5
+   GROUP BY depth ORDER BY 1;
+} {8 3 16 4 32 5}
+
+# depth==5 with min() and max()
+do_timed_execsql_test 1.10 {
+  SELECT count(*), min(id), max(id) FROM cx WHERE root=1 AND depth=5;
+} {32 32 63}
+do_timed_execsql_test 1.10-cte {
+  WITH RECURSIVE
+    below(id,depth) AS (
+      VALUES(1,0)
+      UNION ALL
+      SELECT t1.x, below.depth+1
+        FROM t1 JOIN below ON t1.y=below.id
+       WHERE below.depth<5
+    )
+  SELECT count(*), min(id), max(id) FROM below WHERE depth=5;
+} {32 32 63}
+
+# Create a much smaller table t2 with only 32 elements 
+db eval {
+  CREATE TABLE t2(x INTEGER PRIMARY KEY, y INTEGER);
+  INSERT INTO t2 SELECT x, y FROM t1 WHERE x<32;
+  CREATE INDEX t2y ON t2(y);
+  CREATE VIRTUAL TABLE c2 
+   USING transitive_closure(tablename=t2, idcolumn=x, parentcolumn=y);
+}
+
+# t2 full-table
+do_execsql_test 2.1 {
+  SELECT count(*), min(id), max(id) FROM c2 WHERE root=1;
+} {31 1 31}
+# t2 root=10
+do_execsql_test 2.2 {
+  SELECT id FROM c2 WHERE root=10;
+} {10 20 21}
+# t2 root=11
+do_execsql_test 2.3 {
+  SELECT id FROM c2 WHERE root=12;
+} {12 24 25}
+# t2 root IN [10,12]
+do_execsql_test 2.4 {
+  SELECT id FROM c2 WHERE root IN (10,12) ORDER BY id;
+} {10 12 20 21 24 25}
+# t2 root IN [10,12] (sorted)
+do_execsql_test 2.5 {
+  SELECT id FROM c2 WHERE root IN (10,12) ORDER BY +id;
+} {10 12 20 21 24 25}
+
+# t2 c2up from 20
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE c2up USING transitive_closure(
+    tablename = t2,
+    idcolumn = y,
+    parentcolumn = x
+  );
+  SELECT id FROM c2up WHERE root=20;
+} {1 2 5 10 20}
+
+# cx as c2up
+do_execsql_test 3.1 {
+  SELECT id FROM cx
+   WHERE root=20
+     AND tablename='t2'
+     AND idcolumn='y'
+     AND parentcolumn='x';
+} {1 2 5 10 20}
+
+# t2 first cousins of 20
+do_execsql_test 3.2 {
+  SELECT DISTINCT id FROM c2
+   WHERE root IN (SELECT id FROM c2up
+                   WHERE root=20 AND depth<=2)
+   ORDER BY id;
+} {5 10 11 20 21 22 23}
+
+# t2 first cousins of 20
+do_execsql_test 3.3 {
+  SELECT id FROM c2
+   WHERE root=(SELECT id FROM c2up
+               WHERE root=20 AND depth=2)
+     AND depth=2
+  EXCEPT
+  SELECT id FROM c2
+   WHERE root=(SELECT id FROM c2up
+               WHERE root=20 AND depth=1)
+     AND depth<=1
+   ORDER BY id;
+} {22 23}
+
+# missing tablename.
+do_test 4.1 {
+  catchsql {
+    SELECT id FROM cx
+     WHERE root=20
+       AND tablename='t3'
+       AND idcolumn='y'
+       AND parentcolumn='x';
+  }
+} {1 {no such table: t3}}
+
+# missing idcolumn
+do_test 4.2 {
+  catchsql {
+    SELECT id FROM cx
+     WHERE root=20
+       AND tablename='t2'
+       AND idcolumn='xyz'
+       AND parentcolumn='x';
+  }
+} {1 {no such column: t2.xyz}}
+
+# missing parentcolumn
+do_test 4.3 {
+  catchsql {
+    SELECT id FROM cx
+     WHERE root=20
+       AND tablename='t2'
+       AND idcolumn='x'
+       AND parentcolumn='pqr';
+  }
+} {1 {no such column: t2.pqr}}
+
+# generic closure
+do_execsql_test 5.1 {
+  CREATE VIRTUAL TABLE temp.closure USING transitive_closure;
+  SELECT id FROM closure
+   WHERE root=1
+     AND depth=3
+     AND tablename='t1'
+     AND idcolumn='x'
+     AND parentcolumn='y'
+  ORDER BY id;
+} {8 9 10 11 12 13 14 15}
+
+#-------------------------------------------------------------------------
+# At one point the following join query was causing a malfunction in
+# xBestIndex.
+#
+do_execsql_test 6.0 {
+  CREATE TABLE t4 (
+    id INTEGER PRIMARY KEY, 
+    name TEXT NOT NULL,
+    parent_id INTEGER
+  );
+  CREATE VIRTUAL TABLE vt4 USING transitive_closure (
+    idcolumn=id, parentcolumn=parent_id, tablename=t4
+  );
+}
+
+do_execsql_test 6.1 {
+  SELECT * FROM t4, vt4 WHERE t4.id = vt4.root AND vt4.id=4 AND vt4.depth=2;
+}
+
+finish_test
diff --git a/test/coalesce.test b/test/coalesce.test
new file mode 100644
index 0000000000000000000000000000000000000000..af4ea8dfa9b8f78af133743ee0505b58081fa52b
--- /dev/null
+++ b/test/coalesce.test
@@ -0,0 +1,84 @@
+# 2009 November 10
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# Additional test cases for the COALESCE() and IFNULL() functions.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+
+do_test coalesce-1.0 {
+  db eval {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c, d);
+    INSERT INTO t1 VALUES(1, null, null, null);
+    INSERT INTO t1 VALUES(2, 2, 99, 99);
+    INSERT INTO t1 VALUES(3, null, 3, 99);
+    INSERT INTO t1 VALUES(4, null, null, 4);
+    INSERT INTO t1 VALUES(5, null, null, null);
+    INSERT INTO t1 VALUES(6, 22, 99, 99);
+    INSERT INTO t1 VALUES(7, null, 33, 99);
+    INSERT INTO t1 VALUES(8, null, null, 44);
+
+    SELECT coalesce(b,c,d) FROM t1 ORDER BY a;
+  }
+} {{} 2 3 4 {} 22 33 44}
+do_test coalesce-1.1 {
+  db eval {
+    SELECT coalesce(d+c+b,d+c,d) FROM t1 ORDER BY a;
+  }
+} {{} 200 102 4 {} 220 132 44}
+do_test coalesce-1.2 {
+  db eval {
+    SELECT ifnull(d+c+b,ifnull(d+c,d)) FROM t1 ORDER BY a;
+  }
+} {{} 200 102 4 {} 220 132 44}
+do_test coalesce-1.3 {
+  db eval {
+    SELECT ifnull(ifnull(d+c+b,d+c),d) FROM t1 ORDER BY a;
+  }
+} {{} 200 102 4 {} 220 132 44}
+do_test coalesce-1.4 {
+  db eval {
+    SELECT ifnull(ifnull(b,c),d) FROM t1 ORDER BY a;
+  }
+} {{} 2 3 4 {} 22 33 44}
+do_test coalesce-1.5 {
+  db eval {
+    SELECT ifnull(b,ifnull(c,d)) FROM t1 ORDER BY a;
+  }
+} {{} 2 3 4 {} 22 33 44}
+do_test coalesce-1.6 {
+  db eval {
+    SELECT coalesce(b,NOT b,-b,abs(b),lower(b),length(b),min(b,5),b*123,c)
+      FROM t1 ORDER BY a;
+  }
+} {{} 2 3 {} {} 22 33 {}}
+do_test coalesce-1.7 {
+  db eval {
+    SELECT ifnull(nullif(a,4),99)
+      FROM t1 ORDER BY a;
+  }
+} {1 2 3 99 5 6 7 8}
+do_test coalesce-1.8 {
+  db eval {
+pragma vdbe_listing=on;
+    SELECT coalesce(
+      CASE WHEN b=2 THEN 123 END,
+      CASE WHEN b=3 THEN 234 END,
+      CASE WHEN c=3 THEN 345 WHEN c=33 THEN 456 END,
+      d
+    )
+    FROM t1 ORDER BY a;
+  }
+} {{} 123 345 4 {} 99 456 44}
+
+
+finish_test
diff --git a/test/collate1.test b/test/collate1.test
new file mode 100644
index 0000000000000000000000000000000000000000..b65b8504748ade5f630a5192335427a48937d4e7
--- /dev/null
+++ b/test/collate1.test
@@ -0,0 +1,452 @@
+#
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing collation sequences.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix collate1
+
+#
+# Tests are roughly organised as follows:
+#
+# collate1-1.* - Single-field ORDER BY with an explicit COLLATE clause.
+# collate1-2.* - Multi-field ORDER BY with an explicit COLLATE clause.
+# collate1-3.* - ORDER BY using a default collation type. Also that an 
+#                explict collate type overrides a default collate type.
+# collate1-4.* - ORDER BY using a data type.
+#
+
+#
+# Collation type 'HEX'. If an argument can be interpreted as a hexadecimal
+# number, then it is converted to one before the comparison is performed. 
+# Numbers are less than other strings. If neither argument is a number, 
+# [string compare] is used.
+#
+db collate HEX hex_collate
+proc hex_collate {lhs rhs} {
+  set lhs_ishex [regexp {^(0x|)[1234567890abcdefABCDEF]+$} $lhs]
+  set rhs_ishex [regexp {^(0x|)[1234567890abcdefABCDEF]+$} $rhs]
+  if {$lhs_ishex && $rhs_ishex} { 
+    set lhsx [scan $lhs %x]
+    set rhsx [scan $rhs %x]
+    if {$lhs < $rhs} {return -1}
+    if {$lhs == $rhs} {return 0}
+    if {$lhs > $rhs} {return 1}
+  }
+  if {$lhs_ishex} {
+    return -1;
+  }
+  if {$rhs_ishex} {
+    return 1;
+  }
+  return [string compare $lhs $rhs]
+}
+db function hex {format 0x%X}
+
+# Mimic the SQLite 2 collation type NUMERIC.
+db collate numeric numeric_collate
+proc numeric_collate {lhs rhs} {
+  if {$lhs == $rhs} {return 0} 
+  return [expr ($lhs>$rhs)?1:-1]
+}
+
+do_test collate1-1.0 {
+  execsql {
+    CREATE TABLE collate1t1(c1, c2);
+    INSERT INTO collate1t1 VALUES(45, hex(45));
+    INSERT INTO collate1t1 VALUES(NULL, NULL);
+    INSERT INTO collate1t1 VALUES(281, hex(281));
+  }
+} {}
+do_test collate1-1.1 {
+  execsql {
+    SELECT c2 FROM collate1t1 ORDER BY 1;
+  }
+} {{} 0x119 0x2D}
+do_test collate1-1.2 {
+  execsql {
+    SELECT c2 FROM collate1t1 ORDER BY 1 COLLATE hex;
+  }
+} {{} 0x2D 0x119}
+do_test collate1-1.3 {
+  execsql {
+    SELECT c2 FROM collate1t1 ORDER BY 1 COLLATE hex DESC;
+  }
+} {0x119 0x2D {}}
+do_test collate1-1.4 {
+  execsql {
+   SELECT c2 FROM collate1t1 ORDER BY 1 COLLATE hex ASC;
+  }
+} {{} 0x2D 0x119}
+do_test collate1-1.5 {
+  execsql {
+    SELECT c2 COLLATE hex FROM collate1t1 ORDER BY 1
+  }
+} {{} 0x2D 0x119}
+do_test collate1-1.6 {
+  execsql {
+    SELECT c2 COLLATE hex FROM collate1t1 ORDER BY 1 ASC
+  }
+} {{} 0x2D 0x119}
+do_test collate1-1.7 {
+  execsql {
+    SELECT c2 COLLATE hex FROM collate1t1 ORDER BY 1 DESC
+  }
+} {0x119 0x2D {}}
+do_test collate1-1.99 {
+  execsql {
+    DROP TABLE collate1t1;
+  }
+} {}
+
+do_test collate1-2.0 {
+  execsql {
+    CREATE TABLE collate1t1(c1, c2);
+    INSERT INTO collate1t1 VALUES('5', '0x11');
+    INSERT INTO collate1t1 VALUES('5', '0xA');
+    INSERT INTO collate1t1 VALUES(NULL, NULL);
+    INSERT INTO collate1t1 VALUES('7', '0xA');
+    INSERT INTO collate1t1 VALUES('11', '0x11');
+    INSERT INTO collate1t1 VALUES('11', '0x101');
+  }
+} {}
+do_test collate1-2.2 {
+  execsql {
+    SELECT c1, c2 FROM collate1t1 ORDER BY 1 COLLATE numeric, 2 COLLATE hex;
+  }
+} {{} {} 5 0xA 5 0x11 7 0xA 11 0x11 11 0x101}
+do_test collate1-2.3 {
+  execsql {
+    SELECT c1, c2 FROM collate1t1 ORDER BY 1 COLLATE binary, 2 COLLATE hex;
+  }
+} {{} {} 11 0x11 11 0x101 5 0xA 5 0x11 7 0xA}
+do_test collate1-2.4 {
+  execsql {
+    SELECT c1, c2 FROM collate1t1 ORDER BY 1 COLLATE binary DESC, 2 COLLATE hex;
+  }
+} {7 0xA 5 0xA 5 0x11 11 0x11 11 0x101 {} {}}
+do_test collate1-2.5 {
+  execsql {
+    SELECT c1, c2 FROM collate1t1 
+        ORDER BY 1 COLLATE binary DESC, 2 COLLATE hex DESC;
+  }
+} {7 0xA 5 0x11 5 0xA 11 0x101 11 0x11 {} {}}
+do_test collate1-2.6 {
+  execsql {
+    SELECT c1, c2 FROM collate1t1 
+        ORDER BY 1 COLLATE binary ASC, 2 COLLATE hex ASC;
+  }
+} {{} {} 11 0x11 11 0x101 5 0xA 5 0x11 7 0xA}
+do_test collate1-2.12.1 {
+  execsql {
+    SELECT c1 COLLATE numeric, c2 FROM collate1t1 
+     ORDER BY 1, 2 COLLATE hex;
+  }
+} {{} {} 5 0xA 5 0x11 7 0xA 11 0x11 11 0x101}
+do_test collate1-2.12.2 {
+  execsql {
+    SELECT c1 COLLATE hex, c2 FROM collate1t1 
+     ORDER BY 1 COLLATE numeric, 2 COLLATE hex;
+  }
+} {{} {} 5 0xA 5 0x11 7 0xA 11 0x11 11 0x101}
+do_test collate1-2.12.3 {
+  execsql {
+    SELECT c1, c2 COLLATE hex FROM collate1t1 
+     ORDER BY 1 COLLATE numeric, 2;
+  }
+} {{} {} 5 0xA 5 0x11 7 0xA 11 0x11 11 0x101}
+do_test collate1-2.12.4 {
+  execsql {
+    SELECT c1 COLLATE numeric, c2 COLLATE hex
+      FROM collate1t1 
+     ORDER BY 1, 2;
+  }
+} {{} {} 5 0xA 5 0x11 7 0xA 11 0x11 11 0x101}
+do_test collate1-2.13 {
+  execsql {
+    SELECT c1 COLLATE binary, c2 COLLATE hex
+      FROM collate1t1
+     ORDER BY 1, 2;
+  }
+} {{} {} 11 0x11 11 0x101 5 0xA 5 0x11 7 0xA}
+do_test collate1-2.14 {
+  execsql {
+    SELECT c1, c2
+      FROM collate1t1 ORDER BY 1 COLLATE binary DESC, 2 COLLATE hex;
+  }
+} {7 0xA 5 0xA 5 0x11 11 0x11 11 0x101 {} {}}
+do_test collate1-2.15 {
+  execsql {
+    SELECT c1 COLLATE binary, c2 COLLATE hex
+      FROM collate1t1 
+     ORDER BY 1 DESC, 2 DESC;
+  }
+} {7 0xA 5 0x11 5 0xA 11 0x101 11 0x11 {} {}}
+do_test collate1-2.16 {
+  execsql {
+    SELECT c1 COLLATE hex, c2 COLLATE binary
+      FROM collate1t1 
+     ORDER BY 1 COLLATE binary ASC, 2 COLLATE hex ASC;
+  }
+} {{} {} 11 0x11 11 0x101 5 0xA 5 0x11 7 0xA}
+do_test collate1-2.99 {
+  execsql {
+    DROP TABLE collate1t1;
+  }
+} {}
+
+#
+# These tests ensure that the default collation type for a column is used 
+# by an ORDER BY clause correctly. The focus is all the different ways
+# the column can be referenced. i.e. a, collate2t1.a, main.collate2t1.a etc.
+#
+do_test collate1-3.0 {
+  execsql {
+    CREATE TABLE collate1t1(a COLLATE hex, b);
+    INSERT INTO collate1t1 VALUES( '0x5', 5 );
+    INSERT INTO collate1t1 VALUES( '1', 1 );
+    INSERT INTO collate1t1 VALUES( '0x45', 69 );
+    INSERT INTO collate1t1 VALUES( NULL, NULL );
+    SELECT * FROM collate1t1 ORDER BY a;
+  }
+} {{} {} 1 1 0x5 5 0x45 69}
+
+do_test collate1-3.1 {
+  execsql {
+    SELECT * FROM collate1t1 ORDER BY 1;
+  }
+} {{} {} 1 1 0x5 5 0x45 69}
+do_test collate1-3.2 {
+  execsql {
+    SELECT * FROM collate1t1 ORDER BY collate1t1.a;
+  }
+} {{} {} 1 1 0x5 5 0x45 69}
+do_test collate1-3.3 {
+  execsql {
+    SELECT * FROM collate1t1 ORDER BY main.collate1t1.a;
+  }
+} {{} {} 1 1 0x5 5 0x45 69}
+do_test collate1-3.4 {
+  execsql {
+    SELECT a as c1, b as c2 FROM collate1t1 ORDER BY c1;
+  }
+} {{} {} 1 1 0x5 5 0x45 69}
+do_test collate1-3.5 {
+  execsql {
+    SELECT a as c1, b as c2 FROM collate1t1 ORDER BY c1 COLLATE binary;
+  }
+} {{} {} 0x45 69 0x5 5 1 1}
+do_test collate1-3.5.1 {
+  execsql {
+    SELECT a COLLATE binary as c1, b as c2
+      FROM collate1t1 ORDER BY c1;
+  }
+} {{} {} 0x45 69 0x5 5 1 1}
+do_test collate1-3.6 {
+  execsql {
+    DROP TABLE collate1t1;
+  }
+} {}
+
+# Update for SQLite version 3. The collate1-4.* test cases were written
+# before manifest types were introduced. The following test cases still
+# work, due to the 'affinity' mechanism, but they don't prove anything
+# about collation sequences.
+#
+do_test collate1-4.0 {
+  execsql {
+    CREATE TABLE collate1t1(c1 numeric, c2 text);
+    INSERT INTO collate1t1 VALUES(1, 1);
+    INSERT INTO collate1t1 VALUES(12, 12);
+    INSERT INTO collate1t1 VALUES(NULL, NULL);
+    INSERT INTO collate1t1 VALUES(101, 101);
+  }
+} {}
+do_test collate1-4.1 {
+  execsql {
+    SELECT c1 FROM collate1t1 ORDER BY 1;
+  }
+} {{} 1 12 101}
+do_test collate1-4.2 {
+  execsql {
+    SELECT c2 FROM collate1t1 ORDER BY 1;
+  }
+} {{} 1 101 12}
+do_test collate1-4.3 {
+  execsql {
+    SELECT c2+0 FROM collate1t1 ORDER BY 1;
+  }
+} {{} 1 12 101}
+do_test collate1-4.4 {
+  execsql {
+    SELECT c1||'' FROM collate1t1 ORDER BY 1;
+  }
+} {{} 1 101 12}
+do_test collate1-4.4.1 {
+  execsql {
+    SELECT (c1||'') COLLATE numeric FROM collate1t1 ORDER BY 1;
+  }
+} {{} 1 12 101}
+do_test collate1-4.5 {
+  execsql {
+    DROP TABLE collate1t1;
+  }
+} {}
+
+# A problem reported on the mailing list:  A CREATE TABLE statement
+# is allowed to have two or more COLLATE clauses on the same column.
+# That probably ought to be an error, but we allow it for backwards
+# compatibility.  Just make sure it works and doesn't leak memory.
+#
+do_test collate1-5.1 {
+  execsql {
+    CREATE TABLE c5(
+      id INTEGER PRIMARY KEY,
+      a TEXT COLLATE binary COLLATE nocase COLLATE rtrim,
+      b TEXT COLLATE nocase COLLATE binary,
+      c TEXT COLLATE rtrim COLLATE binary COLLATE rtrim COLLATE nocase
+    );
+    INSERT INTO c5 VALUES(1, 'abc','abc','abc');
+    INSERT INTO c5 VALUES(2, 'abc   ','ABC','ABC');
+    SELECT id FROM c5 WHERE a='abc' ORDER BY id;
+  }
+} {1 2}
+do_test collate1-5.2 {
+  execsql {
+    SELECT id FROM c5 WHERE b='abc' ORDER BY id;
+  }
+} {1}
+do_test collate1-5.3 {
+  execsql {
+    SELECT id FROM c5 WHERE c='abc' ORDER BY id;
+  }
+} {1 2}
+
+
+
+#-------------------------------------------------------------------------
+# Fix problems with handling collation sequences named '"""'.
+#
+sqlite3_db_config db SQLITE_DBCONFIG_DQS_DML 1
+do_execsql_test 6.1 {
+  SELECT """""""";
+} {\"\"\"}
+
+do_catchsql_test 6.2 {
+  CREATE TABLE x1(a);
+  SELECT a FROM x1 ORDER BY a COLLATE """""""";
+} {1 {no such collation sequence: """}}
+
+do_catchsql_test 6.3 {
+  SELECT a FROM x1 ORDER BY 1 COLLATE """""""";
+} {1 {no such collation sequence: """}}
+
+do_catchsql_test 6.4 {
+  SELECT 0 UNION SELECT 0 ORDER BY 1 COLLATE """""""";
+} {1 {no such collation sequence: """}}
+
+db collate {"""} [list string compare -nocase]
+
+do_execsql_test 6.5 {
+  PRAGMA foreign_keys = ON;
+  CREATE TABLE p1(a PRIMARY KEY COLLATE '"""');
+  CREATE TABLE c1(x, y REFERENCES p1);
+} {}
+
+do_execsql_test 6.6 { 
+  INSERT INTO p1 VALUES('abc'); 
+  INSERT INTO c1 VALUES(1, 'ABC'); 
+}
+
+ifcapable foreignkey {
+  do_catchsql_test 6.7 { 
+    DELETE FROM p1 WHERE rowid = 1 
+  } {1 {FOREIGN KEY constraint failed}}
+}
+
+do_execsql_test 6.8 { 
+  INSERT INTO p1 VALUES('abb');
+  INSERT INTO p1 VALUES('wxz');
+  INSERT INTO p1 VALUES('wxy');
+
+  INSERT INTO c1 VALUES(2, 'abb');
+  INSERT INTO c1 VALUES(3, 'wxz');
+  INSERT INTO c1 VALUES(4, 'WXY');
+  SELECT x, y FROM c1 ORDER BY y COLLATE """""""";
+} {2 abb 1 ABC 4 WXY 3 wxz}
+
+# 2015-04-15:  Nested COLLATE operators
+#
+do_execsql_test 7.0 {
+   SELECT 'abc' UNION ALL SELECT 'DEF'
+    ORDER BY 1 COLLATE nocase COLLATE nocase COLLATE nocase COLLATE nocase;
+} {abc DEF}
+do_execsql_test 7.1 {
+   SELECT 'abc' UNION ALL SELECT 'DEF'
+    ORDER BY 1 COLLATE nocase COLLATE nocase COLLATE nocase COLLATE binary;
+} {DEF abc}
+do_execsql_test 7.2 {
+   SELECT 'abc' UNION ALL SELECT 'DEF'
+    ORDER BY 1 COLLATE binary COLLATE binary COLLATE binary COLLATE nocase;
+} {abc DEF}
+
+# 2019-06-14
+# https://sqlite.org/src/info/f1580ba1b574e9e9
+#
+do_execsql_test 8.0 {
+  SELECT ' ' > char(20) COLLATE rtrim;
+} 0
+do_execsql_test 8.1 {
+  SELECT '' < char(20) COLLATE rtrim;
+} 1
+do_execsql_test 8.2 {
+  DROP TABLE IF EXISTS t0;
+  CREATE TABLE t0(c0 COLLATE RTRIM, c1 BLOB UNIQUE,
+                  PRIMARY KEY (c0, c1)) WITHOUT ROWID;
+  INSERT INTO t0 VALUES (123, 3), (' ', 1), ('	', 2), ('', 4);
+  SELECT * FROM t0 WHERE c1 = 1;
+} {{ } 1}
+
+# 2019-10-09
+# ALWAYS() macro fails following OOM
+# Problem detected by dbsqlfuzz.
+#
+do_execsql_test 9.0 {
+  CREATE TABLE t1(a, b);
+  CREATE TABLE t2(c, d);
+}
+
+do_faultsim_test 9.1 -faults oom* -body {
+  execsql {
+    SELECT * FROM (
+        SELECT b COLLATE nocase IN (SELECT c FROM t2) FROM t1
+    );
+  }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+# 2020-01-03 dbsqlfuzz find
+#
+reset_db
+do_catchsql_test 10.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY,b);
+  INSERT INTO t1 VALUES(0,NULL);
+  CREATE TABLE t2(x UNIQUE);
+  CREATE VIEW v1a(z,y) AS SELECT x COLLATE x FROM t2;
+  SELECT a,b,z,y,'' FROM t1 JOIN v1a ON b IS NOT FALSE;
+} {1 {no such collation sequence: x}}
+
+
+finish_test
diff --git a/test/collate2.test b/test/collate2.test
new file mode 100644
index 0000000000000000000000000000000000000000..281aa35709c8fef99f84a76603a5959fd82209cb
--- /dev/null
+++ b/test/collate2.test
@@ -0,0 +1,742 @@
+#
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is page cache subsystem.
+#
+# $Id: collate2.test,v 1.6 2008/08/20 16:35:10 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+set ::testprefix collate2
+
+#
+# Tests are organised as follows:
+#
+# collate2-1.* WHERE <expr> expressions (sqliteExprIfTrue).
+# collate2-2.* WHERE NOT <expr> expressions (sqliteExprIfFalse).
+# collate2-3.* SELECT <expr> expressions (sqliteExprCode).
+# collate2-4.* Precedence of collation/data types in binary comparisons
+# collate2-5.* JOIN syntax.
+#
+
+# Create a collation type BACKWARDS for use in testing. This collation type
+# is similar to the built-in TEXT collation type except the order of
+# characters in each string is reversed before the comparison is performed.
+db collate BACKWARDS backwards_collate
+proc backwards_collate {a b} {
+  set ra {};
+  set rb {}
+  foreach c [split $a {}] { set ra $c$ra }
+  foreach c [split $b {}] { set rb $c$rb }
+  return [string compare $ra $rb]
+}
+
+# The following values are used in these tests:
+# NULL   aa ab ba bb   aA aB bA bB   Aa Ab Ba Bb   AA AB BA BB 
+#
+# The collation orders for each of the tested collation types are:
+#
+# BINARY:    NULL  AA AB Aa Ab  BA BB Ba Bb  aA aB aa ab  bA bB ba bb 
+# NOCASE:    NULL  aa aA Aa AA  ab aB Ab AB  ba bA Ba BA  bb bB Bb BB 
+# BACKWARDS: NULL  AA BA aA bA  AB BB aB bB  Aa Ba aa ba  Ab Bb ab bb 
+#
+# These tests verify that the default collation type for a column is used
+# for comparison operators (<, >, <=, >=, =) involving that column and 
+# an expression that is not a column with a default collation type.
+# 
+# The collation sequences BINARY and NOCASE are built-in, the BACKWARDS
+# collation sequence is implemented by the TCL proc backwards_collate
+# above.
+#
+do_test collate2-1.0 {
+  execsql {
+    CREATE TABLE collate2t1(
+      a COLLATE BINARY, 
+      b COLLATE NOCASE, 
+      c COLLATE BACKWARDS
+    );
+    INSERT INTO collate2t1 VALUES( NULL, NULL, NULL );
+
+    INSERT INTO collate2t1 VALUES( 'aa', 'aa', 'aa' );
+    INSERT INTO collate2t1 VALUES( 'ab', 'ab', 'ab' );
+    INSERT INTO collate2t1 VALUES( 'ba', 'ba', 'ba' );
+    INSERT INTO collate2t1 VALUES( 'bb', 'bb', 'bb' );
+
+    INSERT INTO collate2t1 VALUES( 'aA', 'aA', 'aA' );
+    INSERT INTO collate2t1 VALUES( 'aB', 'aB', 'aB' );
+    INSERT INTO collate2t1 VALUES( 'bA', 'bA', 'bA' );
+    INSERT INTO collate2t1 VALUES( 'bB', 'bB', 'bB' );
+
+    INSERT INTO collate2t1 VALUES( 'Aa', 'Aa', 'Aa' );
+    INSERT INTO collate2t1 VALUES( 'Ab', 'Ab', 'Ab' );
+    INSERT INTO collate2t1 VALUES( 'Ba', 'Ba', 'Ba' );
+    INSERT INTO collate2t1 VALUES( 'Bb', 'Bb', 'Bb' );
+
+    INSERT INTO collate2t1 VALUES( 'AA', 'AA', 'AA' );
+    INSERT INTO collate2t1 VALUES( 'AB', 'AB', 'AB' );
+    INSERT INTO collate2t1 VALUES( 'BA', 'BA', 'BA' );
+    INSERT INTO collate2t1 VALUES( 'BB', 'BB', 'BB' );
+  }
+  if {[info exists collate_test_use_index]} { 
+    execsql {
+      CREATE INDEX collate2t1_i1 ON collate2t1(a);
+      CREATE INDEX collate2t1_i2 ON collate2t1(b);
+      CREATE INDEX collate2t1_i3 ON collate2t1(c);
+    }
+  }
+} {}
+do_test collate2-1.1 {
+  execsql {
+    SELECT a FROM collate2t1 WHERE a > 'aa' ORDER BY 1;
+  }
+} {ab bA bB ba bb}
+do_test collate2-1.1.1 {
+  execsql {
+    SELECT a FROM collate2t1 WHERE a COLLATE binary > 'aa' ORDER BY 1;
+  }
+} {ab bA bB ba bb}
+do_test collate2-1.1.2 {
+  execsql {
+    SELECT a FROM collate2t1 WHERE b COLLATE binary > 'aa' ORDER BY 1;
+  }
+} {ab bA bB ba bb}
+do_test collate2-1.1.3 {
+  execsql {
+    SELECT a FROM collate2t1 WHERE c COLLATE binary > 'aa' ORDER BY 1;
+  }
+} {ab bA bB ba bb}
+do_test collate2-1.2 {
+  execsql {
+    SELECT b FROM collate2t1 WHERE b > 'aa' ORDER BY 1, oid;
+  }
+} {ab aB Ab AB ba bA Ba BA bb bB Bb BB}
+do_test collate2-1.2.1 {
+  execsql {
+    SELECT b FROM collate2t1 WHERE a COLLATE nocase > 'aa'
+     ORDER BY 1, oid;
+  }
+} {ab aB Ab AB ba bA Ba BA bb bB Bb BB}
+do_test collate2-1.2.2 {
+  execsql {
+    SELECT b FROM collate2t1 WHERE b COLLATE nocase > 'aa'
+     ORDER BY 1, oid;
+  }
+} {ab aB Ab AB ba bA Ba BA bb bB Bb BB}
+do_test collate2-1.2.3 {
+  execsql {
+    SELECT b FROM collate2t1 WHERE c COLLATE nocase > 'aa'
+     ORDER BY 1, oid;
+  }
+} {ab aB Ab AB ba bA Ba BA bb bB Bb BB}
+do_test collate2-1.2.4 {
+  execsql {
+    SELECT b FROM collate2t1 WHERE b > 'aa' ORDER BY +b;
+  }
+} {ab aB Ab AB ba bA Ba BA bb bB Bb BB}
+do_test collate2-1.2.5 {
+  execsql {
+    SELECT b FROM collate2t1 WHERE a COLLATE nocase > 'aa' ORDER BY +b;
+  }
+} {ab aB Ab AB ba bA Ba BA bb bB Bb BB}
+do_test collate2-1.2.6 {
+  execsql {
+    SELECT b FROM collate2t1 WHERE b COLLATE nocase > 'aa' ORDER BY +b;
+  }
+} {ab aB Ab AB ba bA Ba BA bb bB Bb BB}
+do_test collate2-1.2.7 {
+  execsql {
+    SELECT b FROM collate2t1 WHERE c COLLATE nocase > 'aa' ORDER BY +b;
+  }
+} {ab aB Ab AB ba bA Ba BA bb bB Bb BB}
+do_test collate2-1.3 {
+  execsql {
+    SELECT c FROM collate2t1 WHERE c > 'aa' ORDER BY 1;
+  }
+} {ba Ab Bb ab bb}
+do_test collate2-1.3.1 {
+  execsql {
+    SELECT c FROM collate2t1 WHERE a COLLATE backwards > 'aa'
+    ORDER BY 1;
+  }
+} {ba Ab Bb ab bb}
+do_test collate2-1.3.2 {
+  execsql {
+    SELECT c FROM collate2t1 WHERE b COLLATE backwards > 'aa'
+    ORDER BY 1;
+  }
+} {ba Ab Bb ab bb}
+do_test collate2-1.3.3 {
+  execsql {
+    SELECT c FROM collate2t1 WHERE c COLLATE backwards > 'aa'
+    ORDER BY 1;
+  }
+} {ba Ab Bb ab bb}
+do_test collate2-1.4 {
+  execsql {
+    SELECT a FROM collate2t1 WHERE a < 'aa' ORDER BY 1;
+  }
+} {AA AB Aa Ab BA BB Ba Bb aA aB}
+do_test collate2-1.5 {
+  execsql {
+    SELECT b FROM collate2t1 WHERE b < 'aa' ORDER BY 1, oid;
+  }
+} {}
+do_test collate2-1.5.1 {
+  execsql {
+    SELECT b FROM collate2t1 WHERE b < 'aa' ORDER BY +b;
+  }
+} {}
+do_test collate2-1.6 {
+  execsql {
+    SELECT c FROM collate2t1 WHERE c < 'aa' ORDER BY 1;
+  }
+} {AA BA aA bA AB BB aB bB Aa Ba}
+do_test collate2-1.7 {
+  execsql {
+    SELECT a FROM collate2t1 WHERE a = 'aa';
+  }
+} {aa}
+do_test collate2-1.8 {
+  execsql {
+    SELECT b FROM collate2t1 WHERE b = 'aa' ORDER BY oid;
+  }
+} {aa aA Aa AA}
+do_test collate2-1.9 {
+  execsql {
+    SELECT c FROM collate2t1 WHERE c = 'aa';
+  }
+} {aa}
+do_test collate2-1.10 {
+  execsql {
+    SELECT a FROM collate2t1 WHERE a >= 'aa' ORDER BY 1;
+  }
+} {aa ab bA bB ba bb}
+do_test collate2-1.11 {
+  execsql {
+    SELECT b FROM collate2t1 WHERE b >= 'aa' ORDER BY 1, oid;
+  }
+} {aa aA Aa AA ab aB Ab AB ba bA Ba BA bb bB Bb BB}
+do_test collate2-1.12 {
+  execsql {
+    SELECT c FROM collate2t1 WHERE c >= 'aa' ORDER BY 1;
+  }
+} {aa ba Ab Bb ab bb}
+do_test collate2-1.13 {
+  execsql {
+    SELECT a FROM collate2t1 WHERE a <= 'aa' ORDER BY 1;
+  }
+} {AA AB Aa Ab BA BB Ba Bb aA aB aa}
+do_test collate2-1.14 {
+  execsql {
+    SELECT b FROM collate2t1 WHERE b <= 'aa' ORDER BY 1, oid;
+  }
+} {aa aA Aa AA}
+do_test collate2-1.15 {
+  execsql {
+    SELECT c FROM collate2t1 WHERE c <= 'aa' ORDER BY 1;
+  }
+} {AA BA aA bA AB BB aB bB Aa Ba aa}
+do_test collate2-1.16 {
+  execsql {
+    SELECT a FROM collate2t1 WHERE a BETWEEN 'Aa' AND 'Bb' ORDER BY 1;
+  }
+} {Aa Ab BA BB Ba Bb}
+do_test collate2-1.17 {
+  execsql {
+    SELECT b FROM collate2t1 WHERE b BETWEEN 'Aa' AND 'Bb' ORDER BY 1, oid;
+  }
+} {aa aA Aa AA ab aB Ab AB ba bA Ba BA bb bB Bb BB}
+do_test collate2-1.17.1 {
+  execsql {
+    SELECT b FROM collate2t1 WHERE b BETWEEN 'Aa' AND 'Bb' ORDER BY +b;
+  }
+} {aa aA Aa AA ab aB Ab AB ba bA Ba BA bb bB Bb BB}
+do_test collate2-1.18 {
+  execsql {
+    SELECT c FROM collate2t1 WHERE c BETWEEN 'Aa' AND 'Bb' ORDER BY 1;
+  }
+} {Aa Ba aa ba Ab Bb}
+do_test collate2-1.19 {
+  execsql {
+    SELECT a FROM collate2t1 WHERE 
+      CASE a WHEN 'aa' THEN 1 ELSE 0 END
+        ORDER BY 1, oid;
+  }
+} {aa}
+do_test collate2-1.20 {
+  execsql {
+    SELECT b FROM collate2t1 WHERE 
+      CASE b WHEN 'aa' THEN 1 ELSE 0 END
+        ORDER BY 1, oid;
+  }
+} {aa aA Aa AA}
+do_test collate2-1.21 {
+  execsql {
+    SELECT c FROM collate2t1 WHERE 
+      CASE c WHEN 'aa' THEN 1 ELSE 0 END
+        ORDER BY 1, oid;
+  }
+} {aa}
+
+ifcapable subquery {
+  do_test collate2-1.22 {
+    execsql {
+      SELECT a FROM collate2t1 WHERE a IN ('aa', 'bb') ORDER BY 1, oid;
+    }
+  } {aa bb}
+  do_test collate2-1.23 {
+    execsql {
+      SELECT b FROM collate2t1 WHERE b IN ('aa', 'bb') ORDER BY 1, oid;
+    }
+  } {aa aA Aa AA bb bB Bb BB}
+  do_test collate2-1.24 {
+    execsql {
+      SELECT c FROM collate2t1 WHERE c IN ('aa', 'bb') ORDER BY 1, oid;
+    }
+  } {aa bb}
+  do_test collate2-1.25 {
+    execsql {
+      SELECT a FROM collate2t1 
+        WHERE a IN (SELECT a FROM collate2t1 WHERE a IN ('aa', 'bb'));
+    }
+  } {aa bb}
+  do_test collate2-1.26 {
+    execsql {
+      SELECT b FROM collate2t1 
+        WHERE b IN (SELECT a FROM collate2t1 WHERE a IN ('aa', 'bb'));
+    }
+  } {aa bb aA bB Aa Bb AA BB}
+  do_test collate2-1.27 {
+    execsql {
+      SELECT c FROM collate2t1 
+        WHERE c IN (SELECT a FROM collate2t1 WHERE a IN ('aa', 'bb'));
+    }
+  } {aa bb}
+} ;# ifcapable subquery
+
+do_test collate2-2.1 {
+  execsql {
+    SELECT a FROM collate2t1 WHERE NOT a > 'aa' ORDER BY 1;
+  }
+} {AA AB Aa Ab BA BB Ba Bb aA aB aa}
+do_test collate2-2.2 {
+  execsql {
+    SELECT b FROM collate2t1 WHERE NOT b > 'aa' ORDER BY 1, oid;
+  }
+} {aa aA Aa AA}
+do_test collate2-2.3 {
+  execsql {
+    SELECT c FROM collate2t1 WHERE NOT c > 'aa' ORDER BY 1;
+  }
+} {AA BA aA bA AB BB aB bB Aa Ba aa}
+do_test collate2-2.4 {
+  execsql {
+    SELECT a FROM collate2t1 WHERE NOT a < 'aa' ORDER BY 1;
+  }
+} {aa ab bA bB ba bb}
+do_test collate2-2.5 {
+  execsql {
+    SELECT b FROM collate2t1 WHERE NOT b < 'aa' ORDER BY 1, oid;
+  }
+} {aa aA Aa AA ab aB Ab AB ba bA Ba BA bb bB Bb BB}
+do_test collate2-2.6 {
+  execsql {
+    SELECT c FROM collate2t1 WHERE NOT c < 'aa' ORDER BY 1;
+  }
+} {aa ba Ab Bb ab bb}
+do_test collate2-2.7 {
+  execsql {
+    SELECT a FROM collate2t1 WHERE NOT a = 'aa';
+  }
+} {ab ba bb aA aB bA bB Aa Ab Ba Bb AA AB BA BB}
+do_test collate2-2.8 {
+  execsql {
+    SELECT b FROM collate2t1 WHERE NOT b = 'aa';
+  }
+} {ab ba bb aB bA bB Ab Ba Bb AB BA BB}
+do_test collate2-2.9 {
+  execsql {
+    SELECT c FROM collate2t1 WHERE NOT c = 'aa';
+  }
+} {ab ba bb aA aB bA bB Aa Ab Ba Bb AA AB BA BB}
+do_test collate2-2.10 {
+  execsql {
+    SELECT a FROM collate2t1 WHERE NOT a >= 'aa' ORDER BY 1;
+  }
+} {AA AB Aa Ab BA BB Ba Bb aA aB}
+do_test collate2-2.11 {
+  execsql {
+    SELECT b FROM collate2t1 WHERE NOT b >= 'aa' ORDER BY 1, oid;
+  }
+} {}
+do_test collate2-2.12 {
+  execsql {
+    SELECT c FROM collate2t1 WHERE NOT c >= 'aa' ORDER BY 1;
+  }
+} {AA BA aA bA AB BB aB bB Aa Ba}
+do_test collate2-2.13 {
+  execsql {
+    SELECT a FROM collate2t1 WHERE NOT a <= 'aa' ORDER BY 1;
+  }
+} {ab bA bB ba bb}
+do_test collate2-2.14 {
+  execsql {
+    SELECT b FROM collate2t1 WHERE NOT b <= 'aa' ORDER BY 1, oid;
+  }
+} {ab aB Ab AB ba bA Ba BA bb bB Bb BB}
+do_test collate2-2.15 {
+  execsql {
+    SELECT c FROM collate2t1 WHERE NOT c <= 'aa' ORDER BY 1;
+  }
+} {ba Ab Bb ab bb}
+do_test collate2-2.16 {
+  execsql {
+    SELECT a FROM collate2t1 WHERE a NOT BETWEEN 'Aa' AND 'Bb' ORDER BY 1;
+  }
+} {AA AB aA aB aa ab bA bB ba bb}
+do_test collate2-2.17 {
+  execsql {
+    SELECT b FROM collate2t1 WHERE b NOT BETWEEN 'Aa' AND 'Bb' ORDER BY 1, oid;
+  }
+} {}
+do_test collate2-2.18 {
+  execsql {
+    SELECT c FROM collate2t1 WHERE c NOT BETWEEN 'Aa' AND 'Bb' ORDER BY 1;
+  }
+} {AA BA aA bA AB BB aB bB ab bb}
+do_test collate2-2.19 {
+  execsql {
+    SELECT a FROM collate2t1 WHERE NOT CASE a WHEN 'aa' THEN 1 ELSE 0 END;
+  }
+} {{} ab ba bb aA aB bA bB Aa Ab Ba Bb AA AB BA BB}
+do_test collate2-2.20 {
+  execsql {
+    SELECT b FROM collate2t1 WHERE NOT CASE b WHEN 'aa' THEN 1 ELSE 0 END;
+  }
+} {{} ab ba bb aB bA bB Ab Ba Bb AB BA BB}
+do_test collate2-2.21 {
+  execsql {
+    SELECT c FROM collate2t1 WHERE NOT CASE c WHEN 'aa' THEN 1 ELSE 0 END;
+  }
+} {{} ab ba bb aA aB bA bB Aa Ab Ba Bb AA AB BA BB}
+
+ifcapable subquery {
+  do_test collate2-2.22 {
+    execsql {
+      SELECT a FROM collate2t1 WHERE NOT a IN ('aa', 'bb');
+    }
+  } {ab ba aA aB bA bB Aa Ab Ba Bb AA AB BA BB}
+  do_test collate2-2.23 {
+    execsql {
+      SELECT b FROM collate2t1 WHERE NOT b IN ('aa', 'bb');
+    }
+  } {ab ba aB bA Ab Ba AB BA}
+  do_test collate2-2.24 {
+    execsql {
+      SELECT c FROM collate2t1 WHERE NOT c IN ('aa', 'bb');
+    }
+  } {ab ba aA aB bA bB Aa Ab Ba Bb AA AB BA BB}
+  do_test collate2-2.25 {
+    execsql {
+      SELECT a FROM collate2t1 
+        WHERE NOT a IN (SELECT a FROM collate2t1 WHERE a IN ('aa', 'bb'));
+    }
+  } {ab ba aA aB bA bB Aa Ab Ba Bb AA AB BA BB}
+  do_test collate2-2.26 {
+    execsql {
+      SELECT b FROM collate2t1 
+        WHERE NOT b IN (SELECT a FROM collate2t1 WHERE a IN ('aa', 'bb'));
+    }
+  } {ab ba aB bA Ab Ba AB BA}
+  do_test collate2-2.27 {
+    execsql {
+      SELECT c FROM collate2t1 
+        WHERE NOT c IN (SELECT a FROM collate2t1 WHERE a IN ('aa', 'bb'));
+    }
+  } {ab ba aA aB bA bB Aa Ab Ba Bb AA AB BA BB}
+}
+
+do_test collate2-3.1 {
+  execsql {
+    SELECT a > 'aa' FROM collate2t1;
+  }
+} {{} 0 1 1 1 0 0 1 1 0 0 0 0 0 0 0 0}
+do_test collate2-3.2 {
+  execsql {
+    SELECT b > 'aa' FROM collate2t1;
+  }
+} {{} 0 1 1 1 0 1 1 1 0 1 1 1 0 1 1 1}
+do_test collate2-3.3 {
+  execsql {
+    SELECT c > 'aa' FROM collate2t1;
+  }
+} {{} 0 1 1 1 0 0 0 0 0 1 0 1 0 0 0 0}
+do_test collate2-3.4 {
+  execsql {
+    SELECT a < 'aa' FROM collate2t1;
+  }
+} {{} 0 0 0 0 1 1 0 0 1 1 1 1 1 1 1 1}
+do_test collate2-3.5 {
+  execsql {
+    SELECT b < 'aa' FROM collate2t1;
+  }
+} {{} 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0}
+do_test collate2-3.6 {
+  execsql {
+    SELECT c < 'aa' FROM collate2t1;
+  }
+} {{} 0 0 0 0 1 1 1 1 1 0 1 0 1 1 1 1}
+do_test collate2-3.7 {
+  execsql {
+    SELECT a = 'aa' FROM collate2t1;
+  }
+} {{} 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0}
+do_test collate2-3.8 {
+  execsql {
+    SELECT b = 'aa' FROM collate2t1;
+  }
+} {{} 1 0 0 0 1 0 0 0 1 0 0 0 1 0 0 0}
+do_test collate2-3.9 {
+  execsql {
+    SELECT c = 'aa' FROM collate2t1;
+  }
+} {{} 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0}
+do_test collate2-3.10 {
+  execsql {
+    SELECT a <= 'aa' FROM collate2t1;
+  }
+} {{} 1 0 0 0 1 1 0 0 1 1 1 1 1 1 1 1}
+do_test collate2-3.11 {
+  execsql {
+    SELECT b <= 'aa' FROM collate2t1;
+  }
+} {{} 1 0 0 0 1 0 0 0 1 0 0 0 1 0 0 0}
+do_test collate2-3.12 {
+  execsql {
+    SELECT c <= 'aa' FROM collate2t1;
+  }
+} {{} 1 0 0 0 1 1 1 1 1 0 1 0 1 1 1 1}
+do_test collate2-3.13 {
+  execsql {
+    SELECT a >= 'aa' FROM collate2t1;
+  }
+} {{} 1 1 1 1 0 0 1 1 0 0 0 0 0 0 0 0}
+do_test collate2-3.14 {
+  execsql {
+    SELECT b >= 'aa' FROM collate2t1;
+  }
+} {{} 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1}
+do_test collate2-3.15 {
+  execsql {
+    SELECT c >= 'aa' FROM collate2t1;
+  }
+} {{} 1 1 1 1 0 0 0 0 0 1 0 1 0 0 0 0}
+do_test collate2-3.16 {
+  execsql {
+    SELECT a BETWEEN 'Aa' AND 'Bb' FROM collate2t1;
+  }
+} {{} 0 0 0 0 0 0 0 0 1 1 1 1 0 0 1 1}
+do_test collate2-3.17 {
+  execsql {
+    SELECT b BETWEEN 'Aa' AND 'Bb' FROM collate2t1;
+  }
+} {{} 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1}
+do_test collate2-3.18 {
+  execsql {
+    SELECT c BETWEEN 'Aa' AND 'Bb' FROM collate2t1;
+  }
+} {{} 1 0 1 0 0 0 0 0 1 1 1 1 0 0 0 0}
+do_test collate2-3.19 {
+  execsql {
+    SELECT CASE a WHEN 'aa' THEN 1 ELSE 0 END FROM collate2t1;
+  }
+} {0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0}
+do_test collate2-3.20 {
+  execsql {
+    SELECT CASE b WHEN 'aa' THEN 1 ELSE 0 END FROM collate2t1;
+  }
+} {0 1 0 0 0 1 0 0 0 1 0 0 0 1 0 0 0}
+do_test collate2-3.21 {
+  execsql {
+    SELECT CASE c WHEN 'aa' THEN 1 ELSE 0 END FROM collate2t1;
+  }
+} {0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0}
+
+ifcapable subquery {
+  do_test collate2-3.22 {
+    execsql {
+      SELECT a IN ('aa', 'bb') FROM collate2t1;
+    }
+  } {{} 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0}
+  do_test collate2-3.23 {
+    execsql {
+      SELECT b IN ('aa', 'bb') FROM collate2t1;
+    }
+  } {{} 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1}
+  do_test collate2-3.24 {
+    execsql {
+      SELECT c IN ('aa', 'bb') FROM collate2t1;
+    }
+  } {{} 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0}
+  do_test collate2-3.25 {
+    execsql {
+      SELECT a IN (SELECT a FROM collate2t1 WHERE a IN ('aa', 'bb')) 
+        FROM collate2t1;
+    }
+  } {{} 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0}
+  do_test collate2-3.26 {
+    execsql {
+      SELECT b IN (SELECT a FROM collate2t1 WHERE a IN ('aa', 'bb')) 
+        FROM collate2t1;
+    }
+  } {{} 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1}
+  do_test collate2-3.27 {
+    execsql {
+      SELECT c IN (SELECT a FROM collate2t1 WHERE a IN ('aa', 'bb')) 
+        FROM collate2t1;
+    }
+  } {{} 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0}
+}
+
+do_test collate2-4.0 {
+  execsql {
+    CREATE TABLE collate2t2(b COLLATE binary);
+    CREATE TABLE collate2t3(b text);
+    INSERT INTO collate2t2 VALUES('aa');
+    INSERT INTO collate2t3 VALUES('aa');
+  }
+} {}
+
+# Test that when both sides of a binary comparison operator have
+# default collation types, the collate type for the leftmost term
+# is used.
+do_test collate2-4.1 {
+  execsql {
+    SELECT collate2t1.a FROM collate2t1, collate2t2 
+      WHERE collate2t1.b = collate2t2.b;
+  }
+} {aa aA Aa AA}
+do_test collate2-4.2 {
+  execsql {
+    SELECT collate2t1.a FROM collate2t1, collate2t2 
+      WHERE collate2t2.b = collate2t1.b;
+  }
+} {aa}
+
+# Test that when one side has a default collation type and the other
+# does not, the collation type is used.
+do_test collate2-4.3 {
+  execsql {
+    SELECT collate2t1.a FROM collate2t1, collate2t3 
+      WHERE collate2t1.b = collate2t3.b||''
+      ORDER BY +collate2t1.a DESC;
+  }
+} {aa aA Aa AA}
+do_test collate2-4.4 {
+  execsql {
+    SELECT collate2t1.a FROM collate2t1, collate2t3 
+      WHERE collate2t3.b||'' = collate2t1.b
+      ORDER BY +collate2t1.a DESC;
+  }
+} {aa aA Aa AA}
+
+do_test collate2-4.5 {
+  execsql {
+    DROP TABLE collate2t3;
+  }
+} {}
+
+#
+# Test that the default collation types are used when the JOIN syntax
+# is used in place of a WHERE clause.
+#
+# SQLite transforms the JOIN syntax into a WHERE clause internally, so
+# the focus of these tests is to ensure that the table on the left-hand-side
+# of the join determines the collation type used. 
+#
+do_test collate2-5.0 {
+  execsql {
+    SELECT collate2t1.b FROM collate2t1 JOIN collate2t2 USING (b);
+  }
+} {aa aA Aa AA}
+do_test collate2-5.1 {
+  execsql {
+    SELECT collate2t1.b FROM collate2t2 JOIN collate2t1 USING (b);
+  }
+} {aa}
+do_test collate2-5.2 {
+  execsql {
+    SELECT collate2t1.b FROM collate2t1 NATURAL JOIN collate2t2;
+  }
+} {aa aA Aa AA}
+do_test collate2-5.3 {
+  execsql {
+    SELECT collate2t1.b FROM collate2t2 NATURAL JOIN collate2t1;
+  }
+} {aa}
+do_test collate2-5.4.1 {
+  execsql {
+    SELECT collate2t2.b FROM collate2t1 LEFT JOIN collate2t2 USING (b) order by collate2t1.oid;
+  }
+} {{} aa {} {} {} aa {} {} {} aa {} {} {} aa {} {} {}}
+do_test collate2-5.4.2 {
+  execsql {
+    SELECT collate2t2.b FROM collate2t2 RIGHT JOIN collate2t1 ON collate2t1.b=collate2t2.b
+     ORDER BY collate2t1.oid;
+  }
+} {{} aa {} {} {} aa {} {} {} aa {} {} {} aa {} {} {}}
+do_test collate2-5.4.3 {
+  execsql {
+    SELECT collate2t2.b FROM collate2t1 LEFT JOIN collate2t2 ON collate2t2.b=collate2t1.b
+     ORDER BY collate2t1.oid;
+  }
+} {{} aa {} {} {} {} {} {} {} {} {} {} {} {} {} {} {}}
+do_test collate2-5.5.1 {
+  execsql {
+    SELECT collate2t1.b, collate2t2.b FROM collate2t2 LEFT OUTER JOIN collate2t1 USING (b);
+  }
+} {aa aa}
+do_test collate2-5.5.2 {
+  execsql {
+    SELECT collate2t1.b, collate2t2.b
+      FROM collate2t1 RIGHT JOIN collate2t2 ON collate2t2.b=collate2t1.b
+  }
+} {aa aa}
+
+do_execsql_test 6.1 {
+  CREATE TABLE t1(x);
+  INSERT INTO t1 VALUES('b');
+  INSERT INTO t1 VALUES('B');
+}
+do_execsql_test 6.2 {
+  SELECT * FROM t1 WHERE x COLLATE nocase BETWEEN 'a' AND 'c';
+} {b B}
+do_execsql_test 6.3 {
+  SELECT * FROM t1 WHERE x BETWEEN 'a' COLLATE nocase AND 'c' COLLATE nocase;
+} {b B}
+do_execsql_test 6.4 {
+  SELECT * FROM t1 
+  WHERE x COLLATE nocase BETWEEN 'a' COLLATE nocase AND 'c' COLLATE nocase;
+} {b B}
+do_execsql_test 6.5 {
+  SELECT * FROM t1 WHERE +x COLLATE nocase BETWEEN 'a' AND 'c';
+} {b B}
+do_execsql_test 6.6 {
+  SELECT * FROM t1 WHERE +x BETWEEN 'a' COLLATE nocase AND 'c' COLLATE nocase;
+} {b B}
+do_execsql_test 6.7 {
+  SELECT * FROM t1 
+  WHERE +x COLLATE nocase BETWEEN 'a' COLLATE nocase AND 'c' COLLATE nocase;
+} {b B}
+
+finish_test
diff --git a/test/collate3.test b/test/collate3.test
new file mode 100644
index 0000000000000000000000000000000000000000..99640d05b89bee6539e7fb8754639a28fcbcc880
--- /dev/null
+++ b/test/collate3.test
@@ -0,0 +1,531 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is page cache subsystem.
+#
+# $Id: collate3.test,v 1.13 2008/08/20 16:35:10 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+#
+# Tests are organised as follows:
+#
+# collate3.1.* - Errors related to unknown collation sequences.
+# collate3.2.* - Errors related to undefined collation sequences.
+# collate3.3.* - Writing to a table that has an index with an undefined c.s.
+# collate3.4.* - Misc errors.
+# collate3.5.* - Collation factory.
+#
+
+#
+# These tests ensure that when a user executes a statement with an 
+# unknown collation sequence an error is returned.
+#
+do_test collate3-1.0 {
+  execsql {
+    CREATE TABLE collate3t1(c1 UNIQUE);
+  }
+} {}
+do_test collate3-1.1 {
+  catchsql {
+    SELECT * FROM collate3t1 ORDER BY 1 collate garbage;
+  }
+} {1 {no such collation sequence: garbage}}
+do_test collate3-1.1.2 {
+  catchsql {
+    SELECT DISTINCT c1 COLLATE garbage FROM collate3t1;
+  }
+} {1 {no such collation sequence: garbage}}
+do_test collate3-1.2 {
+  catchsql {
+    CREATE TABLE collate3t2(c1 collate garbage);
+  }
+} {1 {no such collation sequence: garbage}}
+do_test collate3-1.3 {
+  catchsql {
+    CREATE INDEX collate3i1 ON collate3t1(c1 COLLATE garbage);
+  }
+} {1 {no such collation sequence: garbage}}
+
+execsql {
+  DROP TABLE collate3t1;
+}
+
+proc caseless {a b} { string compare -nocase $a $b }
+do_test collate3-1.4 {
+  db collate caseless caseless
+  execsql { 
+    CREATE TABLE t1(a COLLATE caseless); 
+    INSERT INTO t1 VALUES('Abc2');
+    INSERT INTO t1 VALUES('abc1');
+    INSERT INTO t1 VALUES('aBc3');
+  }
+  execsql { SELECT * FROM t1 ORDER BY a }
+} {abc1 Abc2 aBc3}
+
+do_test collate3-1.5 {
+  db close
+  sqlite3 db test.db
+  catchsql { SELECT * FROM t1 ORDER BY a }
+} {1 {no such collation sequence: caseless}}
+
+do_test collate3-1.6.1 {
+  db collate caseless caseless
+  execsql { CREATE INDEX i1 ON t1(a) }
+  execsql { SELECT * FROM t1 ORDER BY a }
+} {abc1 Abc2 aBc3}
+
+do_test collate3-1.6.2 {
+  db close
+  sqlite3 db test.db
+  catchsql { SELECT * FROM t1 ORDER BY a }
+} {1 {no such collation sequence: caseless}}
+
+do_test collate3-1.6.3 {
+  db close
+  sqlite3 db test.db
+  catchsql { PRAGMA integrity_check }
+} {1 {no such collation sequence: caseless}}
+
+do_test collate3-1.6.4 {
+  db close
+  sqlite3 db test.db
+  catchsql { REINDEX }
+} {1 {no such collation sequence: caseless}}
+
+do_test collate3-1.7.1 {
+  db collate caseless caseless
+  execsql {
+    DROP TABLE t1;
+    CREATE TABLE t1(a);
+    CREATE INDEX i1 ON t1(a COLLATE caseless);
+    INSERT INTO t1 VALUES('Abc2');
+    INSERT INTO t1 VALUES('abc1');
+    INSERT INTO t1 VALUES('aBc3');
+    SELECT * FROM t1 ORDER BY a COLLATE caseless;
+  }
+} {abc1 Abc2 aBc3}
+
+do_test collate3-1.7.2 {
+  db close
+  sqlite3 db test.db
+  catchsql { SELECT * FROM t1 ORDER BY a COLLATE caseless}
+} {1 {no such collation sequence: caseless}}
+
+do_test collate3-1.7.4 {
+  db close
+  sqlite3 db test.db
+  catchsql { REINDEX }
+} {1 {no such collation sequence: caseless}}
+
+do_test collate3-1.7.3 {
+  db close
+  sqlite3 db test.db
+  catchsql { PRAGMA integrity_check }
+} {1 {no such collation sequence: caseless}}
+
+do_test collate3-1.7.4 {
+  db close
+  sqlite3 db test.db
+  catchsql { REINDEX }
+} {1 {no such collation sequence: caseless}}
+
+do_test collate3-1.7.5 {
+  db close
+  sqlite3 db test.db
+  db collate caseless caseless
+  catchsql { PRAGMA integrity_check }
+} {0 ok}
+
+proc needed {nm} { db collate caseless caseless }
+do_test collate3-1.7.6 {
+  db close
+  sqlite3 db test.db
+  db collation_needed needed
+  catchsql { PRAGMA integrity_check }
+} {0 ok}
+
+do_test collate3-1.8 {
+  execsql { DROP TABLE t1 }
+} {}
+
+#
+# Create a table with a default collation sequence, then close
+# and re-open the database without re-registering the collation
+# sequence. Then make sure the library stops us from using
+# the collation sequence in:
+# * an explicitly collated ORDER BY
+# * an ORDER BY that uses the default collation sequence
+# * an expression (=)
+# * a CREATE TABLE statement
+# * a CREATE INDEX statement that uses a default collation sequence
+# * a GROUP BY that uses the default collation sequence
+# * a SELECT DISTINCT that uses the default collation sequence
+# * Compound SELECTs that uses the default collation sequence
+# * An ORDER BY on a compound SELECT with an explicit ORDER BY.
+#
+do_test collate3-2.0 {
+  db collate string_compare {string compare}
+  execsql {
+    CREATE TABLE collate3t1(c1 COLLATE string_compare, c2);
+  }
+  db close
+  sqlite3 db test.db
+  expr 0
+} 0
+do_test collate3-2.1 {
+  catchsql {
+    SELECT * FROM collate3t1 ORDER BY 1 COLLATE string_compare;
+  }
+} {1 {no such collation sequence: string_compare}} 
+do_test collate3-2.2 {
+  catchsql {
+    SELECT * FROM collate3t1 ORDER BY c1;
+  }
+} {1 {no such collation sequence: string_compare}} 
+do_test collate3-2.3 {
+  catchsql {
+    SELECT * FROM collate3t1 WHERE c1 = 'xxx';
+  }
+} {1 {no such collation sequence: string_compare}} 
+do_test collate3-2.4 {
+  catchsql {
+    CREATE TABLE collate3t2(c1 COLLATE string_compare);
+  }
+} {1 {no such collation sequence: string_compare}} 
+do_test collate3-2.5 {
+  catchsql {
+    CREATE INDEX collate3t1_i1 ON collate3t1(c1);
+  }
+} {1 {no such collation sequence: string_compare}}
+do_test collate3-2.6 {
+  catchsql {
+    SELECT * FROM collate3t1;
+  }
+} {0 {}}
+do_test collate3-2.7.1 {
+  catchsql {
+    SELECT count(*) FROM collate3t1 GROUP BY c1;
+  }
+} {1 {no such collation sequence: string_compare}} 
+# do_test collate3-2.7.2 {
+#   catchsql {
+#     SELECT * FROM collate3t1 GROUP BY c1;
+#   }
+# } {1 {GROUP BY may only be used on aggregate queries}}
+do_test collate3-2.7.2 {
+  catchsql {
+    SELECT * FROM collate3t1 GROUP BY c1;
+  }
+} {1 {no such collation sequence: string_compare}} 
+do_test collate3-2.8 {
+  catchsql {
+    SELECT DISTINCT c1 FROM collate3t1;
+  }
+} {1 {no such collation sequence: string_compare}} 
+
+ifcapable compound {
+  do_test collate3-2.9 {
+    catchsql {
+      SELECT c1 FROM collate3t1 UNION SELECT c1 FROM collate3t1;
+    }
+  } {1 {no such collation sequence: string_compare}} 
+  do_test collate3-2.10 {
+    catchsql {
+      SELECT c1 FROM collate3t1 EXCEPT SELECT c1 FROM collate3t1;
+    }
+  } {1 {no such collation sequence: string_compare}} 
+  do_test collate3-2.11 {
+    catchsql {
+      SELECT c1 FROM collate3t1 INTERSECT SELECT c1 FROM collate3t1;
+    }
+  } {1 {no such collation sequence: string_compare}} 
+  do_test collate3-2.12 {
+    catchsql {
+      SELECT c1 FROM collate3t1 UNION ALL SELECT c1 FROM collate3t1;
+    }
+  } {0 {}}
+  do_test collate3-2.13 {
+    catchsql {
+      SELECT 10 UNION ALL SELECT 20 ORDER BY 1 COLLATE string_compare;
+    }
+  } {1 {no such collation sequence: string_compare}} 
+  do_test collate3-2.14 {
+    catchsql {
+      SELECT 10 INTERSECT SELECT 20 ORDER BY 1 COLLATE string_compare;
+    }
+  } {1 {no such collation sequence: string_compare}} 
+  do_test collate3-2.15 {
+    catchsql {
+      SELECT 10 EXCEPT SELECT 20 ORDER BY 1 COLLATE string_compare;
+    }
+  } {1 {no such collation sequence: string_compare}} 
+  do_test collate3-2.16 {
+    catchsql {
+      SELECT 10 UNION SELECT 20 ORDER BY 1 COLLATE string_compare;
+    }
+  } {1 {no such collation sequence: string_compare}} 
+  do_test collate3-2.17 {
+    catchsql {
+      SELECT c1 FROM collate3t1 UNION ALL SELECT c1 FROM collate3t1 ORDER BY 1;
+    }
+  } {1 {no such collation sequence: string_compare}} 
+} ;# ifcapable compound
+
+#
+# Create an index that uses a collation sequence then close and
+# re-open the database without re-registering the collation
+# sequence. Then check that for the table with the index 
+# * An INSERT fails,
+# * An UPDATE on the column with the index fails,
+# * An UPDATE on a different column succeeds.
+# * A DELETE with a WHERE clause fails
+# * A DELETE without a WHERE clause succeeds
+#
+# Also, ensure that the restrictions tested by collate3-2.* still
+# apply after the index has been created.
+#
+do_test collate3-3.0 {
+  db collate string_compare {string compare}
+  execsql {
+    CREATE INDEX collate3t1_i1 ON collate3t1(c1);
+    INSERT INTO collate3t1 VALUES('xxx', 'yyy');
+  }
+  db close
+  sqlite3 db test.db
+  expr 0
+} 0
+db eval {select * from collate3t1}
+do_test collate3-3.1 {
+  catchsql {
+    INSERT INTO collate3t1 VALUES('xxx', 0);
+  }
+} {1 {no such collation sequence: string_compare}} 
+do_test collate3-3.2 {
+  catchsql {
+    UPDATE collate3t1 SET c1 = 'xxx';
+  }
+} {1 {no such collation sequence: string_compare}} 
+do_test collate3-3.3 {
+  catchsql {
+    UPDATE collate3t1 SET c2 = 'xxx';
+  }
+} {0 {}}
+do_test collate3-3.4 {
+  catchsql {
+    DELETE FROM collate3t1 WHERE 1;
+  }
+} {1 {no such collation sequence: string_compare}} 
+do_test collate3-3.5 {
+  catchsql {
+    SELECT * FROM collate3t1;
+  }
+} {0 {xxx xxx}}
+do_test collate3-3.6 {
+  catchsql {
+    DELETE FROM collate3t1;
+  }
+} {0 {}}
+ifcapable {integrityck} {
+  do_test collate3-3.8 {
+    catchsql {
+      PRAGMA integrity_check
+    }
+  } {1 {no such collation sequence: string_compare}}
+}
+do_test collate3-3.9 {
+  catchsql {
+    SELECT * FROM collate3t1;
+  }
+} {0 {}}
+do_test collate3-3.10 {
+  catchsql {
+    SELECT * FROM collate3t1 ORDER BY 1 COLLATE string_compare;
+  }
+} {1 {no such collation sequence: string_compare}} 
+do_test collate3-3.11 {
+  catchsql {
+    SELECT * FROM collate3t1 ORDER BY c1;
+  }
+} {1 {no such collation sequence: string_compare}} 
+do_test collate3-3.12 {
+  catchsql {
+    SELECT * FROM collate3t1 WHERE c1 = 'xxx';
+  }
+} {1 {no such collation sequence: string_compare}} 
+do_test collate3-3.13 {
+  catchsql {
+    CREATE TABLE collate3t2(c1 COLLATE string_compare);
+  }
+} {1 {no such collation sequence: string_compare}} 
+do_test collate3-3.14 {
+  catchsql {
+    CREATE INDEX collate3t1_i2 ON collate3t1(c1);
+  }
+} {1 {no such collation sequence: string_compare}} 
+do_test collate3-3.15 {
+  execsql {
+    DROP TABLE collate3t1;
+  }
+} {}
+
+# Check we can create an index that uses an explicit collation 
+# sequence and then close and re-open the database.
+do_test collate3-4.6 {
+  db collate user_defined "string compare"
+  execsql {
+    CREATE TABLE collate3t1(a, b);
+    INSERT INTO collate3t1 VALUES('hello', NULL);
+    CREATE INDEX collate3i1 ON collate3t1(a COLLATE user_defined);
+  }
+} {}
+do_test collate3-4.7 {
+  db close
+  sqlite3 db test.db
+  catchsql {
+    SELECT * FROM collate3t1 ORDER BY a COLLATE user_defined;
+  }
+} {1 {no such collation sequence: user_defined}}
+do_test collate3-4.8.1 {
+  db collate user_defined "string compare"
+  catchsql {
+    SELECT * FROM collate3t1 ORDER BY a COLLATE user_defined;
+  }
+} {0 {hello {}}}
+do_test collate3-4.8.2 {
+  db close
+  lindex [catch {
+    sqlite3 db test.db
+  }] 0
+} {0}
+do_test collate3-4.8.3 {
+  execsql {
+    DROP TABLE collate3t1;
+  }
+} {}
+
+# Compare strings as numbers.
+proc numeric_compare {lhs rhs} {
+  if {$rhs > $lhs} {
+    set res -1
+  } else {
+    set res [expr ($lhs > $rhs)?1:0]
+  }
+  return $res
+}
+
+# Check we can create a view that uses an explicit collation 
+# sequence and then close and re-open the database.
+ifcapable view {
+do_test collate3-4.9 {
+  db collate user_defined numeric_compare
+  execsql {
+    CREATE TABLE collate3t1(a, b);
+    INSERT INTO collate3t1 VALUES('2', NULL);
+    INSERT INTO collate3t1 VALUES('101', NULL);
+    INSERT INTO collate3t1 VALUES('12', NULL);
+    CREATE VIEW collate3v1 AS SELECT * FROM collate3t1 
+        ORDER BY 1 COLLATE user_defined;
+    SELECT * FROM collate3v1;
+  }
+} {2 {} 12 {} 101 {}}
+do_test collate3-4.10 {
+  db close
+  sqlite3 db test.db
+  catchsql {
+    SELECT * FROM collate3v1;
+  }
+} {1 {no such collation sequence: user_defined}}
+do_test collate3-4.11 {
+  db collate user_defined numeric_compare
+  catchsql {
+    SELECT * FROM collate3v1;
+  }
+} {0 {2 {} 12 {} 101 {}}}
+do_test collate3-4.12 {
+  execsql {
+    DROP TABLE collate3t1;
+  }
+} {}
+} ;# ifcapable view
+
+#
+# Test the collation factory. In the code, the "no such collation sequence"
+# message is only generated in two places. So these tests just test that
+# the collation factory can be called once from each of those points.
+#
+do_test collate3-5.0 {
+  catchsql {
+    CREATE TABLE collate3t1(a);
+    INSERT INTO collate3t1 VALUES(10);
+    SELECT a FROM collate3t1 ORDER BY 1 COLLATE unk;
+  }
+} {1 {no such collation sequence: unk}}
+do_test collate3-5.1 {
+  set ::cfact_cnt 0
+  proc cfact {nm} {
+    db collate $nm {string compare}
+    incr ::cfact_cnt
+  }
+  db collation_needed cfact
+} {}
+do_test collate3-5.2 {
+  catchsql {
+    SELECT a FROM collate3t1 ORDER BY 1 COLLATE unk;
+  }
+} {0 10}
+do_test collate3-5.3 {
+  set ::cfact_cnt
+} {1}
+do_test collate3-5.4 {
+  catchsql {
+    SELECT a FROM collate3t1 ORDER BY 1 COLLATE unk;
+  }
+} {0 10}
+do_test collate3-5.5 {
+  set ::cfact_cnt
+} {1}
+do_test collate3-5.6 {
+  catchsql {
+    SELECT a FROM collate3t1 ORDER BY 1 COLLATE unk;
+  }
+} {0 10}
+do_test collate3-5.7 {
+  execsql {
+    DROP TABLE collate3t1;
+    CREATE TABLE collate3t1(a COLLATE unk);
+  }
+  db close
+  sqlite3 db test.db
+  catchsql {
+    SELECT a FROM collate3t1 ORDER BY 1;
+  }
+} {1 {no such collation sequence: unk}}
+do_test collate3-5.8 {
+  set ::cfact_cnt 0
+  proc cfact {nm} {
+    db collate $nm {string compare}
+    incr ::cfact_cnt
+  }
+  db collation_needed cfact
+  catchsql {
+    SELECT a FROM collate3t1 ORDER BY 1;
+  }
+} {0 {}}
+
+do_test collate3-5.9 {
+  execsql {
+    DROP TABLE collate3t1;
+  }
+} {}
+
+finish_test
diff --git a/test/collate4.test b/test/collate4.test
new file mode 100644
index 0000000000000000000000000000000000000000..b8c1c573c3bc5b39e9c1dff402d15b9ac5f7a1c5
--- /dev/null
+++ b/test/collate4.test
@@ -0,0 +1,704 @@
+#
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is page cache subsystem.
+#
+# $Id: collate4.test,v 1.9 2008/01/05 17:39:30 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+db collate TEXT text_collate
+proc text_collate {a b} {
+  return [string compare $a $b]
+}
+
+# Do an SQL statement.  Append the search count to the end of the result.
+#
+proc count sql {
+  set ::sqlite_search_count 0
+  return [concat [execsql $sql] $::sqlite_search_count]
+}
+
+# This procedure executes the SQL.  Then it checks the generated program
+# for the SQL and appends a "nosort" to the result if the program contains the
+# SortCallback opcode.  If the program does not contain the SortCallback
+# opcode it appends "sort"
+#
+proc cksort {sql} {
+  set ::sqlite_sort_count 0
+  set data [execsql $sql]
+  if {$::sqlite_sort_count} {set x sort} {set x nosort}
+  lappend data $x
+  return $data
+}
+
+# 
+# Test cases are organized roughly as follows:
+#
+# collate4-1.*      ORDER BY.
+# collate4-2.*      WHERE clauses.
+# collate4-3.*      constraints (primary key, unique).
+# collate4-4.*      simple min() or max() queries.
+# collate4-5.*      REINDEX command
+# collate4-6.*      INTEGER PRIMARY KEY indices.
+#
+
+#
+# These tests - collate4-1.* - check that indices are correctly
+# selected or not selected to implement ORDER BY clauses when 
+# user defined collation sequences are involved. 
+#
+# Because these tests also exercise all the different ways indices 
+# can be created, they also serve to verify that indices are correctly 
+# initialized with user-defined collation sequences when they are
+# created.
+#
+# Tests named collate4-1.1.* use indices with a single column. Tests
+# collate4-1.2.* use indices with two columns.
+#
+do_test collate4-1.1.0 {
+  execsql {
+    CREATE TABLE collate4t1(a COLLATE NOCASE, b COLLATE TEXT);
+    INSERT INTO collate4t1 VALUES( 'a', 'a' );
+    INSERT INTO collate4t1 VALUES( 'b', 'b' );
+    INSERT INTO collate4t1 VALUES( NULL, NULL );
+    INSERT INTO collate4t1 VALUES( 'B', 'B' );
+    INSERT INTO collate4t1 VALUES( 'A', 'A' );
+    CREATE INDEX collate4i1 ON collate4t1(a);
+    CREATE INDEX collate4i2 ON collate4t1(b);
+  }
+} {}
+do_test collate4-1.1.1 {
+  cksort {SELECT a FROM collate4t1 ORDER BY a}
+} {{} a A b B nosort}
+do_test collate4-1.1.2 {
+  cksort {SELECT a FROM collate4t1 ORDER BY a COLLATE NOCASE}
+} {{} a A b B nosort}
+do_test collate4-1.1.3 {
+  cksort {SELECT a FROM collate4t1 ORDER BY a COLLATE TEXT}
+} {{} A B a b sort}
+do_test collate4-1.1.4 {
+  cksort {SELECT b FROM collate4t1 ORDER BY b}
+} {{} A B a b nosort}
+do_test collate4-1.1.5 {
+  cksort {SELECT b FROM collate4t1 ORDER BY b COLLATE TEXT}
+} {{} A B a b nosort}
+do_test collate4-1.1.6 {
+  cksort {SELECT b FROM collate4t1 ORDER BY b COLLATE NOCASE, rowid}
+} {{} a A b B sort}
+
+do_test collate4-1.1.7 {
+  execsql {
+    CREATE TABLE collate4t2(
+      a PRIMARY KEY COLLATE NOCASE, 
+      b UNIQUE COLLATE TEXT
+    );
+    INSERT INTO collate4t2 VALUES( 'a', 'a' );
+    INSERT INTO collate4t2 VALUES( NULL, NULL );
+    INSERT INTO collate4t2 VALUES( 'B', 'B' );
+  }
+} {}
+do_test collate4-1.1.8 {
+  cksort {SELECT a FROM collate4t2 ORDER BY a}
+} {{} a B nosort}
+do_test collate4-1.1.9 {
+  cksort {SELECT a FROM collate4t2 ORDER BY a COLLATE NOCASE}
+} {{} a B nosort}
+do_test collate4-1.1.10 {
+  cksort {SELECT a FROM collate4t2 ORDER BY a COLLATE TEXT}
+} {{} B a sort}
+do_test collate4-1.1.11 {
+  cksort {SELECT b FROM collate4t2 ORDER BY b}
+} {{} B a nosort}
+do_test collate4-1.1.12 {
+  cksort {SELECT b FROM collate4t2 ORDER BY b COLLATE TEXT}
+} {{} B a nosort}
+do_test collate4-1.1.13 {
+  cksort {SELECT b FROM collate4t2 ORDER BY b COLLATE NOCASE}
+} {{} a B sort}
+
+do_test collate4-1.1.14 {
+  execsql {
+    CREATE TABLE collate4t3(
+      b COLLATE TEXT,  
+      a COLLATE NOCASE, 
+      UNIQUE(a), PRIMARY KEY(b)
+    );
+    INSERT INTO collate4t3 VALUES( 'a', 'a' );
+    INSERT INTO collate4t3 VALUES( NULL, NULL );
+    INSERT INTO collate4t3 VALUES( 'B', 'B' );
+  }
+} {}
+do_test collate4-1.1.15 {
+  cksort {SELECT a FROM collate4t3 ORDER BY a}
+} {{} a B nosort}
+do_test collate4-1.1.16 {
+  cksort {SELECT a FROM collate4t3 ORDER BY a COLLATE NOCASE}
+} {{} a B nosort}
+do_test collate4-1.1.17 {
+  cksort {SELECT a FROM collate4t3 ORDER BY a COLLATE TEXT}
+} {{} B a sort}
+do_test collate4-1.1.18 {
+  cksort {SELECT b FROM collate4t3 ORDER BY b}
+} {{} B a nosort}
+do_test collate4-1.1.19 {
+  cksort {SELECT b FROM collate4t3 ORDER BY b COLLATE TEXT}
+} {{} B a nosort}
+do_test collate4-1.1.20 {
+  cksort {SELECT b FROM collate4t3 ORDER BY b COLLATE NOCASE}
+} {{} a B sort}
+
+do_test collate4-1.1.21 {
+  execsql {
+    CREATE TABLE collate4t4(a COLLATE NOCASE, b COLLATE TEXT);
+    INSERT INTO collate4t4 VALUES( 'a', 'a' );
+    INSERT INTO collate4t4 VALUES( 'b', 'b' );
+    INSERT INTO collate4t4 VALUES( NULL, NULL );
+    INSERT INTO collate4t4 VALUES( 'B', 'B' );
+    INSERT INTO collate4t4 VALUES( 'A', 'A' );
+    CREATE INDEX collate4i3 ON collate4t4(a COLLATE TEXT);
+    CREATE INDEX collate4i4 ON collate4t4(b COLLATE NOCASE);
+  }
+} {}
+do_test collate4-1.1.22 {
+  cksort {SELECT a FROM collate4t4 ORDER BY a, rowid}
+} {{} a A b B sort}
+do_test collate4-1.1.23 {
+  cksort {SELECT a FROM collate4t4 ORDER BY a COLLATE NOCASE, rowid}
+} {{} a A b B sort}
+do_test collate4-1.1.24 {
+  cksort {SELECT a FROM collate4t4 ORDER BY a COLLATE TEXT, rowid}
+} {{} A B a b nosort}
+do_test collate4-1.1.25 {
+  cksort {SELECT b FROM collate4t4 ORDER BY b}
+} {{} A B a b sort}
+do_test collate4-1.1.26 {
+  cksort {SELECT b FROM collate4t4 ORDER BY b COLLATE TEXT}
+} {{} A B a b sort}
+do_test collate4-1.1.27 {
+  cksort {SELECT b FROM collate4t4 ORDER BY b COLLATE NOCASE}
+} {{} a A b B nosort}
+
+do_test collate4-1.1.30 {
+  execsql {
+    DROP TABLE collate4t1;
+    DROP TABLE collate4t2;
+    DROP TABLE collate4t3;
+    DROP TABLE collate4t4;
+  }
+} {}
+
+do_test collate4-1.2.0 {
+  execsql {
+    CREATE TABLE collate4t1(a COLLATE NOCASE, b COLLATE TEXT);
+    INSERT INTO collate4t1 VALUES( 'a', 'a' );
+    INSERT INTO collate4t1 VALUES( 'b', 'b' );
+    INSERT INTO collate4t1 VALUES( NULL, NULL );
+    INSERT INTO collate4t1 VALUES( 'B', 'B' );
+    INSERT INTO collate4t1 VALUES( 'A', 'A' );
+    CREATE INDEX collate4i1 ON collate4t1(a, b);
+  }
+} {}
+do_test collate4-1.2.1 {
+  cksort {SELECT a FROM collate4t1 ORDER BY a}
+} {{} A a B b nosort}
+do_test collate4-1.2.2 {
+  cksort {SELECT a FROM collate4t1 ORDER BY a COLLATE nocase}
+} {{} A a B b nosort}
+do_test collate4-1.2.3 {
+  cksort {SELECT a FROM collate4t1 ORDER BY a COLLATE text}
+} {{} A B a b sort}
+do_test collate4-1.2.4 {
+  cksort {SELECT a FROM collate4t1 ORDER BY a, b}
+} {{} A a B b nosort}
+do_test collate4-1.2.5 {
+  cksort {SELECT a FROM collate4t1 ORDER BY a, b COLLATE nocase, rowid}
+} {{} a A b B sort}
+do_test collate4-1.2.6 {
+  cksort {SELECT a FROM collate4t1 ORDER BY a, b COLLATE text}
+} {{} A a B b nosort}
+
+do_test collate4-1.2.7 {
+  execsql {
+    CREATE TABLE collate4t2(
+      a COLLATE NOCASE, 
+      b COLLATE TEXT, 
+      PRIMARY KEY(a, b)
+    );
+    INSERT INTO collate4t2 VALUES( 'a', 'a' );
+    INSERT INTO collate4t2 VALUES( NULL, NULL );
+    INSERT INTO collate4t2 VALUES( 'B', 'B' );
+  }
+} {}
+do_test collate4-1.2.8 {
+  cksort {SELECT a FROM collate4t2 ORDER BY a}
+} {{} a B nosort}
+do_test collate4-1.2.9 {
+  cksort {SELECT a FROM collate4t2 ORDER BY a COLLATE nocase}
+} {{} a B nosort}
+do_test collate4-1.2.10 {
+  cksort {SELECT a FROM collate4t2 ORDER BY a COLLATE text}
+} {{} B a sort}
+do_test collate4-1.2.11 {
+  cksort {SELECT a FROM collate4t2 ORDER BY a, b}
+} {{} a B nosort}
+do_test collate4-1.2.12 {
+  cksort {SELECT a FROM collate4t2 ORDER BY a, b COLLATE nocase}
+} {{} a B sort}
+do_test collate4-1.2.13 {
+  cksort {SELECT a FROM collate4t2 ORDER BY a, b COLLATE text}
+} {{} a B nosort}
+
+do_test collate4-1.2.14 {
+  execsql {
+    CREATE TABLE collate4t3(a COLLATE NOCASE, b COLLATE TEXT);
+    INSERT INTO collate4t3 VALUES( 'a', 'a' );
+    INSERT INTO collate4t3 VALUES( 'b', 'b' );
+    INSERT INTO collate4t3 VALUES( NULL, NULL );
+    INSERT INTO collate4t3 VALUES( 'B', 'B' );
+    INSERT INTO collate4t3 VALUES( 'A', 'A' );
+    CREATE INDEX collate4i2 ON collate4t3(a COLLATE TEXT, b COLLATE NOCASE);
+  }
+} {}
+do_test collate4-1.2.15 {
+  cksort {SELECT a FROM collate4t3 ORDER BY a, rowid}
+} {{} a A b B sort}
+do_test collate4-1.2.16 {
+  cksort {SELECT a FROM collate4t3 ORDER BY a COLLATE nocase, rowid}
+} {{} a A b B sort}
+do_test collate4-1.2.17 {
+  cksort {SELECT a FROM collate4t3 ORDER BY a COLLATE text}
+} {{} A B a b nosort}
+do_test collate4-1.2.18 {
+  cksort {SELECT a FROM collate4t3 ORDER BY a COLLATE text, b}
+} {{} A B a b sort}
+do_test collate4-1.2.19 {
+  cksort {SELECT a FROM collate4t3 ORDER BY a COLLATE text, b COLLATE nocase}
+} {{} A B a b nosort}
+do_test collate4-1.2.20 {
+  cksort {SELECT a FROM collate4t3 ORDER BY a COLLATE text, b COLLATE text}
+} {{} A B a b sort}
+do_test collate4-1.2.21 {
+  cksort {SELECT a FROM collate4t3 ORDER BY a COLLATE text DESC}
+} {b a B A {} nosort}
+do_test collate4-1.2.22 {
+  cksort {SELECT a FROM collate4t3 ORDER BY a COLLATE text DESC, b}
+} {b a B A {} sort}
+do_test collate4-1.2.23 {
+  cksort {SELECT a FROM collate4t3 
+            ORDER BY a COLLATE text DESC, b COLLATE nocase}
+} {b a B A {} sort}
+do_test collate4-1.2.24 {
+  cksort {SELECT a FROM collate4t3 
+            ORDER BY a COLLATE text DESC, b COLLATE nocase DESC}
+} {b a B A {} nosort}
+
+do_test collate4-1.2.25 {
+  execsql {
+    DROP TABLE collate4t1;
+    DROP TABLE collate4t2;
+    DROP TABLE collate4t3;
+  }
+} {}
+
+#
+# These tests - collate4-2.* - check that indices are correctly
+# selected or not selected to implement WHERE clauses when user 
+# defined collation sequences are involved. 
+#
+# Indices may optimise WHERE clauses using <, >, <=, >=, = or IN
+# operators.
+#
+do_test collate4-2.1.0 {
+  execsql {
+    PRAGMA automatic_index=OFF;
+    CREATE TABLE collate4t1(a COLLATE NOCASE);
+    CREATE TABLE collate4t2(b COLLATE TEXT);
+
+    INSERT INTO collate4t1 VALUES('a');
+    INSERT INTO collate4t1 VALUES('A');
+    INSERT INTO collate4t1 VALUES('b');
+    INSERT INTO collate4t1 VALUES('B');
+    INSERT INTO collate4t1 VALUES('c');
+    INSERT INTO collate4t1 VALUES('C');
+    INSERT INTO collate4t1 VALUES('d');
+    INSERT INTO collate4t1 VALUES('D');
+    INSERT INTO collate4t1 VALUES('e');
+    INSERT INTO collate4t1 VALUES('D');
+
+    INSERT INTO collate4t2 VALUES('A');
+    INSERT INTO collate4t2 VALUES('Z');
+  }
+} {}
+do_test collate4-2.1.1 {
+  count {
+    SELECT * FROM collate4t2, collate4t1 WHERE a = b;
+  }
+} {A a A A 19}
+do_test collate4-2.1.2 {
+  execsql {
+    CREATE INDEX collate4i1 ON collate4t1(a);
+  }
+  count {
+    SELECT * FROM collate4t2, collate4t1 WHERE a = b;
+  }
+} {A a A A 4}
+do_test collate4-2.1.3 {
+  count {
+    SELECT * FROM collate4t2, collate4t1 WHERE b = a;
+  }
+} {A A 19}
+do_test collate4-2.1.4 {
+  execsql {
+    DROP INDEX collate4i1;
+    CREATE INDEX collate4i1 ON collate4t1(a COLLATE TEXT);
+  }
+  count {
+    SELECT * FROM collate4t2, collate4t1 WHERE a = b
+     ORDER BY collate4t2.rowid, collate4t1.rowid
+  }
+} {A a A A 19}
+do_test collate4-2.1.5 {
+  count {
+    SELECT * FROM collate4t2, collate4t1 WHERE b = a;
+  }
+} {A A 3}
+ifcapable subquery {
+  do_test collate4-2.1.6 {
+    count {
+      SELECT a FROM collate4t1 WHERE a IN (SELECT * FROM collate4t2)
+       ORDER BY rowid
+    }
+  } {a A 10}
+  do_test collate4-2.1.7 {
+    execsql {
+      DROP INDEX collate4i1;
+      CREATE INDEX collate4i1 ON collate4t1(a);
+    }
+    count {
+      SELECT a FROM collate4t1 WHERE a IN (SELECT * FROM collate4t2)
+       ORDER BY rowid
+    }
+  } {a A 5}
+  do_test collate4-2.1.8 {
+    count {
+      SELECT a FROM collate4t1 WHERE a IN ('z', 'a');
+    }
+  } {a A 4}
+  do_test collate4-2.1.9 {
+    execsql {
+      DROP INDEX collate4i1;
+      CREATE INDEX collate4i1 ON collate4t1(a COLLATE TEXT);
+    }
+    count {
+      SELECT a FROM collate4t1 WHERE a IN ('z', 'a') ORDER BY rowid;
+    }
+  } {a A 9}
+}
+do_test collate4-2.1.10 {
+  execsql {
+    DROP TABLE collate4t1;
+    DROP TABLE collate4t2;
+  }
+} {}
+
+do_test collate4-2.2.0 {
+  execsql {
+    CREATE TABLE collate4t1(a COLLATE nocase, b COLLATE text, c);
+    CREATE TABLE collate4t2(a COLLATE nocase, b COLLATE text, c COLLATE TEXT);
+
+    INSERT INTO collate4t1 VALUES('0', '0', '0');
+    INSERT INTO collate4t1 VALUES('0', '0', '1');
+    INSERT INTO collate4t1 VALUES('0', '1', '0');
+    INSERT INTO collate4t1 VALUES('0', '1', '1');
+    INSERT INTO collate4t1 VALUES('1', '0', '0');
+    INSERT INTO collate4t1 VALUES('1', '0', '1');
+    INSERT INTO collate4t1 VALUES('1', '1', '0');
+    INSERT INTO collate4t1 VALUES('1', '1', '1');
+    insert into collate4t2 SELECT * FROM collate4t1;
+  }
+} {}
+do_test collate4-2.2.1 {
+  count {
+    SELECT * FROM collate4t2 NOT INDEXED NATURAL JOIN collate4t1 NOT INDEXED;
+  }
+} {0 0 0 0 0 1 0 1 0 0 1 1 1 0 0 1 0 1 1 1 0 1 1 1 63}
+do_test collate4-2.2.1b {
+  execsql {
+    CREATE INDEX collate4i1 ON collate4t1(a, b, c);
+  }
+  count {
+    SELECT * FROM collate4t2 NATURAL JOIN collate4t1;
+  }
+} {0 0 0 0 0 1 0 1 0 0 1 1 1 0 0 1 0 1 1 1 0 1 1 1 29}
+do_test collate4-2.2.2 {
+  execsql {
+    DROP INDEX collate4i1;
+    CREATE INDEX collate4i1 ON collate4t1(a, b, c COLLATE text);
+  }
+  count {
+    SELECT * FROM collate4t2 NATURAL JOIN collate4t1;
+  }
+} {0 0 0 0 0 1 0 1 0 0 1 1 1 0 0 1 0 1 1 1 0 1 1 1 22}
+
+do_test collate4-2.2.10 {
+  execsql {
+    DROP TABLE collate4t1;
+    DROP TABLE collate4t2;
+  }
+} {}
+
+#
+# These tests - collate4-3.* verify that indices that implement
+# UNIQUE and PRIMARY KEY constraints operate correctly with user
+# defined collation sequences.
+#
+do_test collate4-3.0 {
+  execsql {
+    CREATE TABLE collate4t1(a PRIMARY KEY COLLATE NOCASE);
+  }
+} {}
+do_test collate4-3.1 {
+  catchsql {
+    INSERT INTO collate4t1 VALUES('abc');
+    INSERT INTO collate4t1 VALUES('ABC');
+  }
+} {1 {UNIQUE constraint failed: collate4t1.a}}
+do_test collate4-3.2 {
+  execsql {
+    SELECT * FROM collate4t1;
+  }
+} {abc}
+do_test collate4-3.3 {
+  catchsql {
+    INSERT INTO collate4t1 SELECT upper(a) FROM collate4t1;
+  }
+} {1 {UNIQUE constraint failed: collate4t1.a}}
+do_test collate4-3.4 {
+  catchsql {
+    INSERT INTO collate4t1 VALUES(1);
+    UPDATE collate4t1 SET a = 'abc';
+  }
+} {1 {UNIQUE constraint failed: collate4t1.a}}
+do_test collate4-3.5 {
+  execsql {
+    DROP TABLE collate4t1;
+    CREATE TABLE collate4t1(a COLLATE NOCASE UNIQUE);
+  }
+} {}
+do_test collate4-3.6 {
+  catchsql {
+    INSERT INTO collate4t1 VALUES('abc');
+    INSERT INTO collate4t1 VALUES('ABC');
+  }
+} {1 {UNIQUE constraint failed: collate4t1.a}}
+do_test collate4-3.7 {
+  execsql {
+    SELECT * FROM collate4t1;
+  }
+} {abc}
+do_test collate4-3.8 {
+  catchsql {
+    INSERT INTO collate4t1 SELECT upper(a) FROM collate4t1;
+  }
+} {1 {UNIQUE constraint failed: collate4t1.a}}
+do_test collate4-3.9 {
+  catchsql {
+    INSERT INTO collate4t1 VALUES(1);
+    UPDATE collate4t1 SET a = 'abc';
+  }
+} {1 {UNIQUE constraint failed: collate4t1.a}}
+do_test collate4-3.10 {
+  execsql {
+    DROP TABLE collate4t1;
+    CREATE TABLE collate4t1(a);
+    CREATE UNIQUE INDEX collate4i1 ON collate4t1(a COLLATE NOCASE);
+  }
+} {}
+do_test collate4-3.11 {
+  catchsql {
+    INSERT INTO collate4t1 VALUES('abc');
+    INSERT INTO collate4t1 VALUES('ABC');
+  }
+} {1 {UNIQUE constraint failed: collate4t1.a}}
+do_test collate4-3.12 {
+  execsql {
+    SELECT * FROM collate4t1;
+  }
+} {abc}
+do_test collate4-3.13 {
+  catchsql {
+    INSERT INTO collate4t1 SELECT upper(a) FROM collate4t1;
+  }
+} {1 {UNIQUE constraint failed: collate4t1.a}}
+do_test collate4-3.14 {
+  catchsql {
+    INSERT INTO collate4t1 VALUES(1);
+    UPDATE collate4t1 SET a = 'abc';
+  }
+} {1 {UNIQUE constraint failed: collate4t1.a}}
+
+do_test collate4-3.15 {
+  execsql {
+    DROP TABLE collate4t1;
+  }
+} {}
+
+# Mimic the SQLite 2 collation type NUMERIC.
+db collate numeric numeric_collate
+proc numeric_collate {lhs rhs} {
+  if {$lhs == $rhs} {return 0} 
+  return [expr ($lhs>$rhs)?1:-1]
+}
+
+#
+# These tests - collate4-4.* check that min() and max() only ever 
+# use indices constructed with built-in collation type numeric.
+#
+# CHANGED:  min() and max() now use the collation type. If there
+# is an indice that can be used, it is used.
+#
+do_test collate4-4.0 {
+  execsql {
+    CREATE TABLE collate4t1(a COLLATE TEXT);
+    INSERT INTO collate4t1 VALUES('2');
+    INSERT INTO collate4t1 VALUES('10');
+    INSERT INTO collate4t1 VALUES('20');
+    INSERT INTO collate4t1 VALUES('104');
+  }
+} {}
+do_test collate4-4.1 {
+  count {
+    SELECT max(a) FROM collate4t1
+  }
+} {20 3}
+do_test collate4-4.2 {
+  count {
+    SELECT min(a) FROM collate4t1
+  }
+} {10 3}
+do_test collate4-4.3 {
+  # Test that the index with collation type TEXT is used.
+  execsql {
+    CREATE INDEX collate4i1 ON collate4t1(a);
+  }
+  count {
+    SELECT min(a) FROM collate4t1;
+  }
+} {10 1}
+do_test collate4-4.4 {
+  count {
+    SELECT max(a) FROM collate4t1;
+  }
+} {20 0}
+do_test collate4-4.5 {
+  # Test that the index with collation type NUMERIC is not used.
+  execsql {
+    DROP INDEX collate4i1;
+    CREATE INDEX collate4i1 ON collate4t1(a COLLATE NUMERIC);
+  }
+  count {
+    SELECT min(a) FROM collate4t1;
+  }
+} {10 3}
+do_test collate4-4.6 {
+  count {
+    SELECT max(a) FROM collate4t1;
+  }
+} {20 3}
+do_test collate4-4.7 {
+  execsql {
+    DROP TABLE collate4t1;
+  }
+} {}
+
+# Also test the scalar min() and max() functions.
+#
+do_test collate4-4.8 {
+  execsql {
+    CREATE TABLE collate4t1(a COLLATE TEXT, b COLLATE NUMERIC);
+    INSERT INTO collate4t1 VALUES('11', '101');
+    INSERT INTO collate4t1 VALUES('101', '11')
+  }
+} {}
+do_test collate4-4.9 {
+  execsql {
+    SELECT max(a, b) FROM collate4t1;
+  }
+} {11 11}
+do_test collate4-4.10 {
+  execsql {
+    SELECT max(b, a) FROM collate4t1;
+  }
+} {101 101}
+do_test collate4-4.11 {
+  execsql {
+    SELECT max(a, '101') FROM collate4t1;
+  }
+} {11 101}
+do_test collate4-4.12 {
+  execsql {
+    SELECT max('101', a) FROM collate4t1;
+  }
+} {11 101}
+do_test collate4-4.13 {
+  execsql {
+    SELECT max(b, '101') FROM collate4t1;
+  }
+} {101 101}
+do_test collate4-4.14 {
+  execsql {
+    SELECT max('101', b) FROM collate4t1;
+  }
+} {101 101}
+
+do_test collate4-4.15 {
+  execsql {
+    DROP TABLE collate4t1;
+  }
+} {}
+
+#
+# These tests - collate4.6.* - ensure that implict INTEGER PRIMARY KEY 
+# indices do not confuse collation sequences. 
+#
+# These indices are never used for sorting in SQLite. And you can't
+# create another index on an INTEGER PRIMARY KEY column, so we don't have 
+# to test that.
+# (Revised 2004-Nov-22):  The ROWID can be used for sorting now.
+#
+do_test collate4-6.0 {
+  execsql {
+    CREATE TABLE collate4t1(a INTEGER PRIMARY KEY);
+    INSERT INTO collate4t1 VALUES(101);
+    INSERT INTO collate4t1 VALUES(10);
+    INSERT INTO collate4t1 VALUES(15);
+  }
+} {}
+do_test collate4-6.1 {
+  cksort {
+    SELECT * FROM collate4t1 ORDER BY 1;
+  }
+} {10 15 101 nosort}
+do_test collate4-6.2 {
+  cksort {
+    SELECT * FROM collate4t1 ORDER BY oid;
+  }
+} {10 15 101 nosort}
+do_test collate4-6.3 {
+  cksort {
+    SELECT * FROM collate4t1 ORDER BY oid||'' COLLATE TEXT;
+  }
+} {10 101 15 sort}
+
+finish_test
diff --git a/test/collate5.test b/test/collate5.test
new file mode 100644
index 0000000000000000000000000000000000000000..71d4efe2559b0cb414b6990a8afeb9ac6f15cf03
--- /dev/null
+++ b/test/collate5.test
@@ -0,0 +1,328 @@
+#
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing DISTINCT, UNION, INTERSECT and EXCEPT
+# SELECT statements that use user-defined collation sequences. Also
+# GROUP BY clauses that use user-defined collation sequences.
+#
+# $Id: collate5.test,v 1.7 2008/09/16 11:58:20 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+set testprefix collate5
+
+
+#
+# Tests are organised as follows:
+# collate5-1.* - DISTINCT
+# collate5-2.* - Compound SELECT
+# collate5-3.* - ORDER BY on compound SELECT
+# collate5-4.* - GROUP BY
+# collate5-5.* - Collation sequence cases
+
+# Create the collation sequence 'TEXT', purely for asthetic reasons. The
+# test cases in this script could just as easily use BINARY.
+db collate TEXT [list string compare]
+
+# Mimic the SQLite 2 collation type NUMERIC.
+db collate numeric numeric_collate
+proc numeric_collate {lhs rhs} {
+  if {$lhs == $rhs} {return 0} 
+  return [expr ($lhs>$rhs)?1:-1]
+}
+
+#
+# These tests - collate5-1.* - focus on the DISTINCT keyword.
+#
+do_test collate5-1.0 {
+  execsql {
+    CREATE TABLE collate5t1(a COLLATE nocase, b COLLATE text);
+
+    INSERT INTO collate5t1 VALUES('a', 'apple');
+    INSERT INTO collate5t1 VALUES('A', 'Apple');
+    INSERT INTO collate5t1 VALUES('b', 'banana');
+    INSERT INTO collate5t1 VALUES('B', 'banana');
+    INSERT INTO collate5t1 VALUES('n', NULL);
+    INSERT INTO collate5t1 VALUES('N', NULL);
+  } 
+} {}
+do_test collate5-1.1 {
+  execsql {
+    SELECT DISTINCT a FROM collate5t1;
+  }
+} {a b n}
+do_test collate5-1.2 {
+  execsql {
+    SELECT DISTINCT b FROM collate5t1;
+  }
+} {apple Apple banana {}}
+do_test collate5-1.3 {
+  execsql {
+    SELECT DISTINCT a, b FROM collate5t1;
+  }
+} {a apple A Apple b banana n {}}
+
+# Ticket #3376
+#
+do_test collate5-1.11 {
+  execsql {
+    CREATE TABLE tkt3376(a COLLATE nocase PRIMARY KEY);
+    INSERT INTO tkt3376 VALUES('abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz');
+    INSERT INTO tkt3376 VALUES('ABXYZ012234567890123456789ABXYZ012234567890123456789ABXYZ012234567890123456789ABXYZ012234567890123456789ABXYZ012234567890123456789ABXYZ012234567890123456789ABXYZ012234567890123456789');
+    SELECT DISTINCT a FROM tkt3376;
+  }
+} {abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz ABXYZ012234567890123456789ABXYZ012234567890123456789ABXYZ012234567890123456789ABXYZ012234567890123456789ABXYZ012234567890123456789ABXYZ012234567890123456789ABXYZ012234567890123456789}
+do_test collate5-1.12 {
+  sqlite3 db2 :memory:
+  db2 eval {
+    PRAGMA encoding=UTF16le;
+    CREATE TABLE tkt3376(a COLLATE nocase PRIMARY KEY);
+    INSERT INTO tkt3376 VALUES('abc');
+    INSERT INTO tkt3376 VALUES('ABX');
+    SELECT DISTINCT a FROM tkt3376;
+  }
+} {abc ABX}
+catch {db2 close}
+
+# The remainder of this file tests compound SELECT statements.
+# Omit it if the library is compiled such that they are omitted.
+#
+ifcapable !compound {
+  finish_test
+  return
+}
+
+#
+# Tests named collate5-2.* focus on UNION, EXCEPT and INTERSECT
+# queries that use user-defined collation sequences.
+#
+# collate5-2.1.* - UNION
+# collate5-2.2.* - INTERSECT
+# collate5-2.3.* - EXCEPT
+#
+do_test collate5-2.0 {
+  execsql {
+    CREATE TABLE collate5t2(a COLLATE text, b COLLATE nocase);
+
+    INSERT INTO collate5t2 VALUES('a', 'apple');
+    INSERT INTO collate5t2 VALUES('A', 'apple');
+    INSERT INTO collate5t2 VALUES('b', 'banana');
+    INSERT INTO collate5t2 VALUES('B', 'Banana');
+  } 
+} {}
+
+do_test collate5-2.1.1 {
+  execsql {
+    SELECT a FROM collate5t1 UNION select a FROM collate5t2;
+  }
+} {A B N}
+do_test collate5-2.1.2 {
+  execsql {
+    SELECT a FROM collate5t2 UNION select a FROM collate5t1;
+  }
+} {A B N a b n}
+do_test collate5-2.1.3 {
+  execsql {
+    SELECT a, b FROM collate5t1 UNION select a, b FROM collate5t2;
+  }
+} {A Apple A apple B Banana b banana N {}}
+do_test collate5-2.1.4 {
+  execsql {
+    SELECT a, b FROM collate5t2 UNION select a, b FROM collate5t1;
+  }
+} {A Apple B banana N {} a apple b banana n {}}
+
+do_test collate5-2.2.1 {
+  execsql {
+    SELECT a FROM collate5t1 EXCEPT select a FROM collate5t2;
+  }
+} {N}
+do_test collate5-2.2.2 {
+  execsql {
+    SELECT a FROM collate5t2 EXCEPT select a FROM collate5t1 WHERE a != 'a';
+  }
+} {A a}
+do_test collate5-2.2.3 {
+  execsql {
+    SELECT a, b FROM collate5t1 EXCEPT select a, b FROM collate5t2;
+  }
+} {A Apple N {}}
+do_test collate5-2.2.4 {
+  execsql {
+    SELECT a, b FROM collate5t2 EXCEPT select a, b FROM collate5t1 
+      where a != 'a';
+  }
+} {A apple a apple}
+
+do_test collate5-2.3.1 {
+  execsql {
+    SELECT a FROM collate5t1 INTERSECT select a FROM collate5t2;
+  }
+} {A B}
+do_test collate5-2.3.2 {
+  execsql {
+    SELECT a FROM collate5t2 INTERSECT select a FROM collate5t1 WHERE a != 'a';
+  }
+} {B b}
+do_test collate5-2.3.3 {
+  execsql {
+    SELECT a, b FROM collate5t1 INTERSECT select a, b FROM collate5t2;
+  }
+} {a apple B banana}
+do_test collate5-2.3.4 {
+  execsql {
+    SELECT a, b FROM collate5t2 INTERSECT select a, b FROM collate5t1;
+  }
+} {A apple B Banana a apple b banana}
+
+#
+# This test ensures performs a UNION operation with a bunch of different
+# length records. The goal is to test that the logic that compares records
+# for the compound SELECT operators works with record lengths that lie
+# either side of the troublesome 256 and 65536 byte marks.
+#
+set ::lens [list \
+  0 1 2 3 4 5 6 7 8 9 \
+  240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 \
+  257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 \
+  65520 65521 65522 65523 65524 65525 65526 65527 65528 65529 65530 \
+  65531 65532 65533 65534 65535 65536 65537 65538 65539 65540 65541 \
+  65542 65543 65544 65545 65546 65547 65548 65549 65550 65551 ]
+do_test collate5-2.4.0 {
+  execsql {
+    BEGIN;
+    CREATE TABLE collate5t3(a, b);
+  }
+  foreach ii $::lens { 
+    execsql "INSERT INTO collate5t3 VALUES($ii, '[string repeat a $ii]');"
+  }
+  expr [llength [execsql {
+    COMMIT;
+    SELECT * FROM collate5t3 UNION SELECT * FROM collate5t3;
+  }]] / 2
+} [llength $::lens]
+do_test collate5-2.4.1 {
+  execsql {DROP TABLE collate5t3;}
+} {}
+unset ::lens
+
+#
+# These tests - collate5-3.* - focus on compound SELECT queries that 
+# feature ORDER BY clauses.
+#
+do_test collate5-3.0 {
+  execsql {
+    SELECT a FROM collate5t1 UNION ALL SELECT a FROM collate5t2 ORDER BY 1;
+  }
+} {/[aA] [aA] [aA] [aA] [bB] [bB] [bB] [bB] [nN] [nN]/}
+do_test collate5-3.1 {
+  execsql {
+    SELECT a FROM collate5t2 UNION ALL SELECT a FROM collate5t1 ORDER BY 1;
+  }
+} {A A B B N a a b b n}
+do_test collate5-3.2 {
+  execsql {
+    SELECT a FROM collate5t1 UNION ALL SELECT a FROM collate5t2 
+      ORDER BY 1 COLLATE TEXT;
+  }
+} {A A B B N a a b b n}
+
+do_test collate5-3.3 {
+  execsql {
+    CREATE TABLE collate5t_cn(a COLLATE NUMERIC);
+    CREATE TABLE collate5t_ct(a COLLATE TEXT);
+    INSERT INTO collate5t_cn VALUES('1');
+    INSERT INTO collate5t_cn VALUES('11');
+    INSERT INTO collate5t_cn VALUES('101');
+    INSERT INTO collate5t_ct SELECT * FROM collate5t_cn;
+  }
+} {}
+do_test collate5-3.4 {
+  execsql {
+    SELECT a FROM collate5t_cn INTERSECT SELECT a FROM collate5t_ct ORDER BY 1;
+  }
+} {1 11 101}
+do_test collate5-3.5 {
+  execsql {
+    SELECT a FROM collate5t_ct INTERSECT SELECT a FROM collate5t_cn ORDER BY 1;
+  }
+} {1 101 11}
+
+do_test collate5-3.20 {
+  execsql {
+    DROP TABLE collate5t_cn;
+    DROP TABLE collate5t_ct;
+    DROP TABLE collate5t1;
+    DROP TABLE collate5t2;
+  }
+} {}
+
+do_test collate5-4.0 {
+  execsql {
+    CREATE TABLE collate5t1(a COLLATE NOCASE, b COLLATE NUMERIC); 
+    INSERT INTO collate5t1 VALUES('a', '1');
+    INSERT INTO collate5t1 VALUES('A', '1.0');
+    INSERT INTO collate5t1 VALUES('b', '2');
+    INSERT INTO collate5t1 VALUES('B', '3');
+  }
+} {}
+do_test collate5-4.1 {
+  string tolower [execsql {
+    SELECT a, count(*) FROM collate5t1 GROUP BY a;
+  }]
+} {a 2 b 2}
+do_test collate5-4.2 {
+  execsql {
+    SELECT a, b, count(*) FROM collate5t1 GROUP BY a, b ORDER BY a, b;
+  }
+} {/[aA] 1(.0)? 2 [bB] 2 1 [bB] 3 1/}
+do_test collate5-4.3 {
+  execsql {
+    DROP TABLE collate5t1;
+  }
+} {}
+
+#-------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 5.0 {
+  CREATE TABLE t1(a, b COLLATE nocase);
+  CREATE TABLE t2(c, d);
+  INSERT INTO t2 VALUES(1, 'bbb');
+}
+do_execsql_test 5.1 {
+  SELECT * FROM (
+      SELECT a, b FROM t1 UNION ALL SELECT c, d FROM t2
+  ) WHERE b='BbB';
+} {1 bbb}
+
+reset_db
+do_execsql_test 5.2 {
+  CREATE TABLE t1(a,b,c COLLATE NOCASE);
+  INSERT INTO t1 VALUES(NULL,'C','c');
+  CREATE VIEW v2 AS
+    SELECT a,b,c FROM t1 INTERSECT SELECT a,b,b FROM t1
+    WHERE 'eT"3qRkL+oJMJjQ9z0'>=b
+    ORDER BY a,b,c;
+}
+
+do_execsql_test 5.3 {
+  SELECT * FROM v2;
+} { {} C c }
+
+do_execsql_test 5.4 {
+  SELECT * FROM v2 WHERE c='c';
+} { {} C c }
+
+
+finish_test
diff --git a/test/collate6.test b/test/collate6.test
new file mode 100644
index 0000000000000000000000000000000000000000..d238639a5d3771f9fc607018becaefdefcbb34f5
--- /dev/null
+++ b/test/collate6.test
@@ -0,0 +1,153 @@
+#
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is collation sequences in concert with triggers.
+#
+# $Id: collate6.test,v 1.4 2007/07/30 14:40:48 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# There are no tests in this file that will work without
+# trigger support.
+#
+ifcapable {!trigger} {
+  finish_test
+  return
+}
+
+# Create a case-insensitive collation type NOCASE for use in testing. 
+# Normally, capital letters are less than their lower-case counterparts.
+db collate NOCASE nocase_collate
+proc nocase_collate {a b} {
+  return [string compare -nocase $a $b]
+}
+
+#
+# Tests are organized as follows:
+# collate6-1.* - triggers.
+#
+
+do_test collate6-1.0 {
+  execsql {
+    CREATE TABLE collate6log(a, b);
+    CREATE TABLE collate6tab(a COLLATE NOCASE, b COLLATE BINARY);
+  }
+} {}
+
+# Test that the default collation sequence applies to new.* references 
+# in WHEN clauses.
+do_test collate6-1.1 {
+  execsql {
+    CREATE TRIGGER collate6trig BEFORE INSERT ON collate6tab 
+      WHEN new.a = 'a' BEGIN
+        INSERT INTO collate6log VALUES(new.a, new.b);
+    END;
+  }
+} {}
+do_test collate6-1.2 {
+  execsql {
+    INSERT INTO collate6tab VALUES('a', 'b');
+    SELECT * FROM collate6log;
+  }
+} {a b}
+do_test collate6-1.3 {
+  execsql {
+    INSERT INTO collate6tab VALUES('A', 'B');
+    SELECT * FROM collate6log;
+  }
+} {a b A B}
+do_test collate6-1.4 {
+  execsql {
+    DROP TRIGGER collate6trig;
+    DELETE FROM collate6log;
+  } 
+} {}
+
+# Test that the default collation sequence applies to new.* references 
+# in the body of triggers.
+do_test collate6-1.5 {
+  execsql {
+    CREATE TRIGGER collate6trig BEFORE INSERT ON collate6tab BEGIN
+      INSERT INTO collate6log VALUES(new.a='a', new.b='b');
+    END;
+  }
+} {}
+do_test collate6-1.6 {
+  execsql {
+    INSERT INTO collate6tab VALUES('a', 'b');
+    SELECT * FROM collate6log;
+  }
+} {1 1}
+do_test collate6-1.7 {
+  execsql {
+    INSERT INTO collate6tab VALUES('A', 'B');
+    SELECT * FROM collate6log;
+  }
+} {1 1 1 0}
+do_test collate6-1.8 {
+  execsql {
+    DROP TRIGGER collate6trig;
+    DELETE FROM collate6log;
+  } 
+} {}
+
+do_test collate6-1.9 {
+  execsql {
+    DROP TABLE collate6tab;
+  }
+} {}
+
+# Test that an explicit collation sequence overrides an implicit 
+# one attached to a 'new' reference.
+#
+do_test collate6-2.1 {
+  execsql {
+    CREATE TABLE abc(a COLLATE binary, b, c);
+    CREATE TABLE def(a, b, c);
+    CREATE TRIGGER abc_t1 AFTER INSERT ON abc BEGIN
+      INSERT INTO def SELECT * FROM abc WHERE a < new.a COLLATE nocase;
+    END
+  }
+} {}
+do_test collate6-2.2 {
+  execsql {
+    INSERT INTO abc VALUES('One', 'Two', 'Three');
+    INSERT INTO abc VALUES('one', 'two', 'three');
+    SELECT * FROM def;
+  }
+} {}
+do_test collate6-2.3 {
+  execsql {
+    UPDATE abc SET a = 'four' WHERE a = 'one';
+    CREATE TRIGGER abc_t2 AFTER UPDATE ON abc BEGIN
+      INSERT INTO def SELECT * FROM abc WHERE a < new.a COLLATE nocase;
+    END;
+    SELECT * FROM def;
+  }
+} {}
+
+# At one point the 6-3.2 (but not 6-3.1) was causing an assert() to fail.
+#
+do_test collate6-3.1 {
+  execsql {
+    SELECT 1 FROM sqlite_master WHERE name COLLATE nocase = 'hello';
+  }
+} {}
+do_test collate6-3.2 {
+  execsql {
+    SELECT 1 FROM sqlite_master WHERE 'hello' = name COLLATE nocase;
+  }
+} {}
+
+
+finish_test
diff --git a/test/collate7.test b/test/collate7.test
new file mode 100644
index 0000000000000000000000000000000000000000..da97491ece19d099f11cab4be31ea1de7e952912
--- /dev/null
+++ b/test/collate7.test
@@ -0,0 +1,72 @@
+#
+# 2007 May 7
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is the experimental sqlite3_create_collation_v2()
+# API.
+#
+# $Id: collate7.test,v 1.2 2008/07/12 14:52:20 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+set ::caseless_del 0
+proc caseless_cmp {zLeft zRight} {
+  string compare -nocase $zLeft $zRight
+}
+
+do_test collate7-1.1 {
+  set cmd [list incr ::caseless_del]
+  sqlite3_create_collation_v2 db CASELESS caseless_cmp $cmd
+  set ::caseless_del
+} {0}
+do_test collate7-1.2 {
+  sqlite_delete_collation db CASELESS
+  set ::caseless_del
+} {1}
+do_test collate7-1.3 {
+  catchsql {
+    CREATE TABLE abc(a COLLATE CASELESS, b, c);
+  }
+} {1 {no such collation sequence: CASELESS}}
+do_test collate7-1.4 {
+  sqlite3_create_collation_v2 db CASELESS caseless_cmp {incr ::caseless_del}
+  db close
+  set ::caseless_del
+} {2}
+
+do_test collate7-2.1 {
+  forcedelete test.db test.db-journal
+  sqlite3 db test.db
+  sqlite3_create_collation_v2 db CASELESS caseless_cmp {incr ::caseless_del}
+  execsql {
+    PRAGMA encoding='utf-16';
+    CREATE TABLE abc16(a COLLATE CASELESS, b, c);
+  } db
+  set ::caseless_del
+} {2}
+do_test collate7-2.2 {
+  execsql {
+    SELECT * FROM abc16 WHERE a < 'abc';
+  }
+  set ::caseless_del
+} {2}
+do_test collate7-2.3 {
+  sqlite_delete_collation db CASELESS
+  set ::caseless_del
+} {3}
+do_test collate7-2.4 {
+  catchsql {
+    SELECT * FROM abc16 WHERE a < 'abc';
+  }
+} {1 {no such collation sequence: CASELESS}}
+
+finish_test
diff --git a/test/collate8.test b/test/collate8.test
new file mode 100644
index 0000000000000000000000000000000000000000..b06c87d2f88ec94ac363361026391381eb190c87
--- /dev/null
+++ b/test/collate8.test
@@ -0,0 +1,157 @@
+#
+# 2007 June 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is making sure collations pass through the
+# unary + operator.
+#
+# 2015-02-09:  Added tests to make sure COLLATE passes through function
+# calls.  Ticket [ca0d20b6cdddec5e81b8d66f89c46a5583b5f6f6].
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test collate8-1.1 {
+  execsql {
+    CREATE TABLE t1(a TEXT COLLATE nocase);
+    INSERT INTO t1 VALUES('aaa');
+    INSERT INTO t1 VALUES('BBB');
+    INSERT INTO t1 VALUES('ccc');
+    INSERT INTO t1 VALUES('DDD');
+    SELECT a FROM t1 ORDER BY a;
+  }
+} {aaa BBB ccc DDD}
+do_test collate8-1.2 {
+  execsql {
+    SELECT rowid FROM t1 WHERE a<'ccc' ORDER BY 1
+  }
+} {1 2}
+do_test collate8-1.3 {
+  execsql {
+    SELECT rowid FROM t1 WHERE a<'ccc' COLLATE binary ORDER BY 1
+  }
+} {1 2 4}
+do_test collate8-1.4 {
+  execsql {
+    SELECT rowid FROM t1 WHERE +a<'ccc' ORDER BY 1
+  }
+} {1 2}
+do_test collate8-1.5 {
+  execsql {
+    SELECT a FROM t1 ORDER BY +a
+  }
+} {aaa BBB ccc DDD}
+do_test collate8-1.11 {
+  execsql {
+    SELECT a AS x FROM t1 ORDER BY "x";
+  }
+} {aaa BBB ccc DDD}
+do_test collate8-1.12 {
+  execsql {
+    SELECT a AS x FROM t1 WHERE x<'ccc' ORDER BY 1
+  }
+} {aaa BBB}
+do_test collate8-1.13 {
+  execsql {
+    SELECT a AS x FROM t1 WHERE x<'ccc' COLLATE binary ORDER BY [x]
+  }
+} {aaa BBB DDD}
+do_test collate8-1.14 {
+  execsql {
+    SELECT a AS x FROM t1 WHERE +x<'ccc' ORDER BY 1
+  }
+} {aaa BBB}
+do_test collate8-1.15 {
+  execsql {
+    SELECT a AS x FROM t1 ORDER BY +x
+  }
+} {aaa BBB ccc DDD}
+
+
+# When a result-set column is aliased into a WHERE clause, make sure the
+# collating sequence logic works correctly.
+#
+do_test collate8-2.1 {
+  execsql {
+    CREATE TABLE t2(a);
+    INSERT INTO t2 VALUES('abc');
+    INSERT INTO t2 VALUES('ABC');
+    SELECT a AS x FROM t2 WHERE x='abc';
+  }
+} {abc}
+do_test collate8-2.2 {
+  execsql {
+    SELECT a AS x FROM t2 WHERE x='abc' COLLATE nocase;
+  }
+} {abc ABC}
+do_test collate8-2.3 {
+  execsql {
+    SELECT a AS x FROM t2 WHERE (x COLLATE nocase)='abc';
+  }
+} {abc ABC}
+do_test collate8-2.4 {
+  execsql {
+    SELECT a COLLATE nocase AS x FROM t2 WHERE x='abc';
+  }
+} {abc ABC}
+do_test collate8-2.5 {
+  execsql {
+    SELECT a COLLATE nocase AS x FROM t2 WHERE (x COLLATE binary)='abc';
+  }
+} {abc}
+do_test collate8-2.6 {
+  execsql {
+    SELECT a COLLATE nocase AS x FROM t2 WHERE x='abc' COLLATE binary;
+  }
+} {abc ABC}
+do_test collate8-2.7 {
+  execsql {
+    SELECT * FROM t2 WHERE (a COLLATE nocase)='abc' COLLATE binary;
+  }
+} {abc ABC}
+do_test collate8-2.8 {
+  execsql {
+    SELECT a COLLATE nocase AS x FROM t2 WHERE 'abc'=x COLLATE binary;
+  }
+} {abc}
+
+# Make sure the COLLATE operator perculates up through function calls
+# and other Expr structures that use the Expr.x.pList field.
+#
+do_execsql_test collate8-3.1 {
+  SELECT 'abc'==('ABC'||'') COLLATE nocase;
+  SELECT 'abc'==('ABC'||'' COLLATE nocase);
+  SELECT 'abc'==('ABC'||('' COLLATE nocase));
+  SELECT 'abc'==('ABC'||upper('' COLLATE nocase));
+} {1 1 1 1}
+do_execsql_test collate8-3.2 {
+  SELECT 'abc'==('ABC'||max('' COLLATE nocase,'' COLLATE binary));
+} {1}
+
+# The COLLATE binary is on the left and so takes precedence
+do_execsql_test collate8-3.3 {
+  SELECT 'abc'==('ABC'||max('' COLLATE binary,'' COLLATE nocase));
+} {0}
+
+do_execsql_test collate8-3.4 {
+  SELECT 'abc'==('ABC'||CASE WHEN 1-1=2 THEN '' COLLATE nocase
+                                        ELSE '' COLLATE binary END);
+  SELECT 'abc'==('ABC'||CASE WHEN 1+1=2 THEN '' COLLATE nocase
+                                        ELSE '' COLLATE binary END);
+} {1 1}
+do_execsql_test collate8-3.5 {
+  SELECT 'abc'==('ABC'||CASE WHEN 1=2 THEN '' COLLATE binary
+                                      ELSE '' COLLATE nocase END);
+} {0}
+
+
+finish_test
diff --git a/test/collate9.test b/test/collate9.test
new file mode 100644
index 0000000000000000000000000000000000000000..5a07773a1ce2fbf999c29b290ac52badb43bed87
--- /dev/null
+++ b/test/collate9.test
@@ -0,0 +1,178 @@
+#
+# 2007 November 12
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is making sure that the names of collation
+# sequences may be quoted using double quotes in SQL statements.
+#
+# $Id: collate9.test,v 1.2 2008/07/10 00:32:42 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+proc reverse_sort {lhs rhs} {
+  return [string compare $rhs $lhs]
+}
+db collate "reverse sort" reverse_sort
+
+# This procedure executes the SQL.  Then it checks to see if the OP_Sort
+# opcode was executed.  If an OP_Sort did occur, then "sort" is appended
+# to the result.  If no OP_Sort happened, then "nosort" is appended.
+#
+# This procedure is used to check to make sure sorting is or is not
+# occurring as expected.
+#
+proc cksort {sql} {
+  set ::sqlite_sort_count 0
+  set data [execsql $sql]
+  if {$::sqlite_sort_count} {set x sort} {set x nosort}
+  lappend data $x
+  return $data
+}
+
+# Test plan:
+#
+#     collate9-1.* - Test collation sequences attached to table columns
+#     collate9-2.* - Test collation sequences attached to expressions
+#     collate9-3.* - Test collation sequences attached to an index
+#     collate9-4.* - Test collation sequences as an argument to REINDEX
+#
+
+do_test collate9-1.1 {
+  execsql {
+    CREATE TABLE xy(x COLLATE "reverse sort", y COLLATE binary);
+    INSERT INTO xy VALUES('one', 'one');
+    INSERT INTO xy VALUES('two', 'two');
+    INSERT INTO xy VALUES('three', 'three');
+  }
+} {}
+do_test collate9-1.2 {
+  execsql { 
+    SELECT x FROM xy ORDER BY x
+  }
+} {two three one}
+do_test collate9-1.3 {
+  execsql { 
+    SELECT y FROM xy ORDER BY y
+  }
+} {one three two}
+do_test collate9-1.4 {
+  cksort { 
+    SELECT x FROM xy ORDER BY x
+  }
+} {two three one sort}
+do_test collate9-1.5 {
+  execsql { 
+    CREATE INDEX xy_i ON xy(x)
+  }
+} {}
+do_test collate9-1.6 {
+  cksort { 
+    SELECT x FROM xy ORDER BY x
+  }
+} {two three one nosort}
+
+do_test collate9-2.1 {
+  execsql { 
+    SELECT x, x < 'seven' FROM xy ORDER BY x
+  }
+} {two 1 three 1 one 0}
+do_test collate9-2.2 {
+  execsql { 
+    SELECT y, y < 'seven' FROM xy ORDER BY x
+  }
+} {two 0 three 0 one 1}
+do_test collate9-2.3 {
+  execsql { 
+    SELECT y, y COLLATE "reverse sort" < 'seven' FROM xy ORDER BY x
+  }
+} {two 1 three 1 one 0}
+do_test collate9-2.4 {
+  execsql {
+    SELECT y FROM xy ORDER BY y
+  }
+} {one three two}
+do_test collate9-2.5 {
+  execsql {
+    SELECT y FROM xy ORDER BY y COLLATE "reverse sort"
+  }
+} {two three one}
+do_test collate9-2.6 {
+  execsql {
+    SELECT y COLLATE "reverse sort" AS aaa FROM xy ORDER BY aaa
+  }
+} {two three one}
+
+do_test collate9-3.1 {
+  execsql {
+    CREATE INDEX xy_i2 ON xy(y COLLATE "reverse sort");
+  }
+} {}
+do_test collate9-3.2 {
+  cksort { 
+    SELECT y FROM xy ORDER BY y 
+  }
+} {one three two sort}
+do_test collate9-3.3 {
+  cksort { 
+    SELECT y FROM xy ORDER BY y COLLATE "reverse sort"
+  }
+} {two three one nosort}
+do_test collate9-3.4 {
+  cksort { 
+    SELECT y AS aaa FROM xy ORDER BY aaa
+  }
+} {one three two sort}
+do_test collate9-3.5 {
+  cksort { 
+    SELECT y COLLATE "reverse sort" AS aaa FROM xy ORDER BY aaa
+  }
+} {two three one nosort}
+
+ifcapable reindex {
+  do_test collate9-4.1 {
+    execsql {
+      REINDEX "reverse sort"
+    }
+  } {}
+
+  # Modify the "reverse sort" collation so that it now sorts in the same
+  # order as binary.
+  proc reverse_sort {lhs rhs} {
+    return [string compare $lhs $rhs]
+  }
+
+  # The integrity check should now fail because the indexes created using
+  # "reverse sort" are no longer in sync with the collation sequence
+  # implementation.
+  do_test collate9-4.2 {
+    expr {"ok" eq [execsql { PRAGMA integrity_check }]}
+  } {0}
+
+  do_test collate9-4.3 {
+    execsql {
+      REINDEX "reverse sort"
+    }
+  } {}
+
+  # Integrity check should now pass.
+  do_test collate9-4.4 {
+    expr {"ok" eq [execsql { PRAGMA integrity_check }]}
+  } {1}
+
+  do_test collate9-4.5 {
+    cksort {
+      SELECT x FROM xy ORDER BY x COLLATE "reverse sort"
+    }
+  } {one three two nosort}
+}
+
+finish_test
diff --git a/test/collateA.test b/test/collateA.test
new file mode 100644
index 0000000000000000000000000000000000000000..3f7ebd9242fa7bfcc1270af3d5cb31051bcf464d
--- /dev/null
+++ b/test/collateA.test
@@ -0,0 +1,217 @@
+#
+# 2008 January 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is the built-in RTRIM collating
+# API.
+#
+# $Id: collateA.test,v 1.3 2008/04/15 04:02:41 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test collateA-1.1 {
+  execsql {
+    CREATE TABLE t1(
+      a INTEGER PRIMARY KEY,
+      b TEXT COLLATE BINARY,
+      c TEXT COLLATE RTRIM
+    );
+    INSERT INTO t1 VALUES(1, 'abcde','abcde');
+    INSERT INTO t1 VALUES(2, 'xyzzy ','xyzzy ');
+    INSERT INTO t1 VALUES(3, 'xyzzy  ','xyzzy  ');
+    INSERT INTO t1 VALUES(4, 'xyzzy   ','xyzzy   ');
+    INSERT INTO t1 VALUES(5, '   ', '   ');
+    INSERT INTO t1 VALUES(6, '', '');
+    SELECT count(*) FROM t1;
+  }
+} {6}
+do_test collateA-1.2 {
+  execsql {SELECT a FROM t1 WHERE b='abcde     '}
+} {}
+do_test collateA-1.3 {
+  execsql {SELECT a FROM t1 WHERE c='abcde     '}
+} {1}
+do_test collateA-1.4 {
+  execsql {SELECT a FROM t1 WHERE b='xyzzy'}
+} {}
+do_test collateA-1.5 {
+  execsql {SELECT a FROM t1 WHERE c='xyzzy'}
+} {2 3 4}
+do_test collateA-1.6 {
+  execsql {SELECT a FROM t1 WHERE c='xyzzy '}
+} {2 3 4}
+do_test collateA-1.7 {
+  execsql {SELECT a FROM t1 WHERE c='xyzzy  '}
+} {2 3 4}
+do_test collateA-1.8 {
+  execsql {SELECT a FROM t1 WHERE c='xyzzy   '}
+} {2 3 4}
+do_test collateA-1.9 {
+  execsql {SELECT a FROM t1 WHERE c='xyzzy    '}
+} {2 3 4}
+do_test collateA-1.10 {
+  execsql {SELECT a FROM t1 WHERE c='xyzzy                                  '}
+} {2 3 4}
+do_test collateA-1.11 {
+  execsql {SELECT 'abc123'='abc123                         ' COLLATE RTRIM;}
+} {1}
+do_test collateA-1.12 {
+  execsql {SELECT 'abc123                         '='abc123' COLLATE RTRIM;}
+} {1}
+do_test collateA-1.13 {
+  execsql {SELECT '  '='' COLLATE RTRIM, '  '='' COLLATE BINARY, '  '=''}
+} {1 0 0}
+do_test collateA-1.14 {
+  execsql {SELECT ''='  ' COLLATE RTRIM, ''='  ' COLLATE BINARY, ''='  '}
+} {1 0 0}
+do_test collateA-1.15 {
+  execsql {SELECT '  '='      ' COLLATE RTRIM, '  '='        '}
+} {1 0}
+do_test collateA-1.16 {
+  execsql {SELECT ''<>'  ' COLLATE RTRIM, ''<>'  ' COLLATE BINARY, ''<>'  '}
+} {0 1 1}
+do_test collateA-1.17 {
+  execsql {SELECT a FROM t1 WHERE c='xyzz'}
+} {}
+do_test collateA-1.18 {
+  execsql {SELECT a FROM t1 WHERE c='xyzzyy   '}
+} {}
+do_test collateA-1.19 {
+  execsql {SELECT a FROM t1 WHERE c='xyzz   '}
+} {}
+do_test collateA-1.20 {
+  execsql {SELECT a FROM t1 WHERE c='abcd   '}
+} {}
+do_test collateA-1.21 {
+  execsql {SELECT a FROM t1 WHERE c='abcd'}
+} {}
+do_test collateA-1.22 {
+  execsql {SELECT a FROM t1 WHERE c='abc'}
+} {}
+do_test collateA-1.23 {
+  execsql {SELECT a FROM t1 WHERE c='abcdef    '}
+} {}
+do_test collateA-1.24 {
+  execsql {SELECT a FROM t1 WHERE c=''}
+} {5 6}
+do_test collateA-1.25 {
+  execsql {SELECT a FROM t1 WHERE c=' '}
+} {5 6}
+do_test collateA-1.26 {
+  execsql {SELECT a FROM t1 WHERE c='                    '}
+} {5 6}
+
+
+do_test collateA-2.1 {
+  execsql {
+    CREATE INDEX i1b ON t1(b);
+    CREATE INDEX i1c ON t1(c);
+    PRAGMA integrity_check;
+  }
+} {ok}
+do_test collateA-2.2 {
+  execsql {SELECT a FROM t1 WHERE b='abcde     '}
+} {}
+do_test collateA-2.3 {
+  execsql {SELECT a FROM t1 WHERE c='abcde     '}
+} {1}
+do_test collateA-2.4 {
+  execsql {SELECT a FROM t1 WHERE b='xyzzy'}
+} {}
+do_test collateA-2.5 {
+  execsql {SELECT a FROM t1 WHERE c='xyzzy'}
+} {2 3 4}
+do_test collateA-2.6 {
+  execsql {SELECT a FROM t1 WHERE c='xyzzy '}
+} {2 3 4}
+do_test collateA-2.7 {
+  execsql {SELECT a FROM t1 WHERE c='xyzzy  '}
+} {2 3 4}
+do_test collateA-2.8 {
+  execsql {SELECT a FROM t1 WHERE c='xyzzy   '}
+} {2 3 4}
+do_test collateA-2.9 {
+  execsql {SELECT a FROM t1 WHERE c='xyzzy    '}
+} {2 3 4}
+do_test collateA-2.10 {
+  execsql {SELECT a FROM t1 WHERE c='xyzzy                                  '}
+} {2 3 4}
+do_test collateA-2.17 {
+  execsql {SELECT a FROM t1 WHERE c='xyzz'}
+} {}
+do_test collateA-2.18 {
+  execsql {SELECT a FROM t1 WHERE c='xyzzyy   '}
+} {}
+do_test collateA-2.19 {
+  execsql {SELECT a FROM t1 WHERE c='xyzz   '}
+} {}
+do_test collateA-2.20 {
+  execsql {SELECT a FROM t1 WHERE c='abcd   '}
+} {}
+do_test collateA-2.21 {
+  execsql {SELECT a FROM t1 WHERE c='abcd'}
+} {}
+do_test collateA-2.22 {
+  execsql {SELECT a FROM t1 WHERE c='abc'}
+} {}
+do_test collateA-2.23 {
+  execsql {SELECT a FROM t1 WHERE c='abcdef    '}
+} {}
+do_test collateA-2.24 {
+  execsql {SELECT a FROM t1 WHERE c=''}
+} {5 6}
+do_test collateA-2.25 {
+  execsql {SELECT a FROM t1 WHERE c=' '}
+} {5 6}
+do_test collateA-2.26 {
+  execsql {SELECT a FROM t1 WHERE c='                    '}
+} {5 6}
+
+
+do_test collateA-3.1 {
+  db close
+  sqlite3 db test.db
+  execsql {
+    REINDEX;
+    PRAGMA integrity_check;
+  }
+} {ok}
+do_test collateA-3.2 {
+  execsql {SELECT a FROM t1 WHERE b='abcde     '}
+} {}
+do_test collateA-3.3 {
+  execsql {SELECT a FROM t1 WHERE c='abcde     '}
+} {1}
+do_test collateA-3.4 {
+  execsql {SELECT a FROM t1 WHERE b='xyzzy'}
+} {}
+do_test collateA-3.5 {
+  execsql {SELECT a FROM t1 WHERE c='xyzzy'}
+} {2 3 4}
+do_test collateA-3.6 {
+  execsql {SELECT a FROM t1 WHERE c='xyzzy '}
+} {2 3 4}
+do_test collateA-3.7 {
+  execsql {SELECT a FROM t1 WHERE c='xyzzy  '}
+} {2 3 4}
+do_test collateA-3.8 {
+  execsql {SELECT a FROM t1 WHERE c='xyzzy   '}
+} {2 3 4}
+do_test collateA-3.9 {
+  execsql {SELECT a FROM t1 WHERE c='xyzzy    '}
+} {2 3 4}
+do_test collateA-3.10 {
+  execsql {SELECT a FROM t1 WHERE c='xyzzy                                  '}
+} {2 3 4}
+
+
+finish_test
diff --git a/test/collateB.test b/test/collateB.test
new file mode 100644
index 0000000000000000000000000000000000000000..3c8d50d8e6dac18f3f3894c9fa10f60ac5d862a5
--- /dev/null
+++ b/test/collateB.test
@@ -0,0 +1,77 @@
+# 2016-07-01
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# Test cases for a crash bug.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix collateB
+
+do_execsql_test collateB-1.1 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY);
+  CREATE TABLE t2(b INTEGER PRIMARY KEY, x1 INT COLLATE NOCASE);
+  CREATE TABLE t3(x2 INT);
+  SELECT * FROM t3, t2, t1 WHERE x2=b AND x1=a AND a=1;
+} {}
+do_execsql_test collateB-1.2 {
+  INSERT INTO t1(a) VALUES(1),(2),(3);
+  INSERT INTO t2(b,x1) VALUES(11,1),(22,2),(33,3);
+  INSERT INTO t3(x2) VALUES(11),(22),(33);
+  SELECT *,'|' FROM t3, t2, t1 WHERE x2=b AND x1=a AND a=1;
+} {11 11 1 1 |}
+do_execsql_test collateB-1.3 {
+  SELECT *,'|' FROM t3, t1, t2 WHERE x2=b AND x1=a AND a=1;
+} {11 1 11 1 |}
+do_execsql_test collateB-1.4 {
+  SELECT *,'|' FROM t2, t3, t1 WHERE x2=b AND x1=a AND a=1;
+} {11 1 11 1 |}
+do_execsql_test collateB-1.5 {
+  SELECT *,'|' FROM t2, t1, t3 WHERE x2=b AND x1=a AND a=1;
+} {11 1 1 11 |}
+do_execsql_test collateB-1.6 {
+  SELECT *,'|' FROM t1, t2, t3 WHERE x2=b AND x1=a AND a=1;
+} {1 11 1 11 |}
+do_execsql_test collateB-1.7 {
+  SELECT *,'|' FROM t1, t2, t3 WHERE x2=b AND x1=a AND a=1;
+} {1 11 1 11 |}
+do_execsql_test collateB-1.12 {
+  SELECT *,'|' FROM t3, t2, t1 WHERE b=x2 AND a=x1 AND 1=a;
+} {11 11 1 1 |}
+do_execsql_test collateB-1.13 {
+  SELECT *,'|' FROM t3, t1, t2 WHERE b=x2 AND a=x1 AND 1=a;
+} {11 1 11 1 |}
+do_execsql_test collateB-1.14 {
+  SELECT *,'|' FROM t2, t3, t1 WHERE b=x2 AND a=x1 AND 1=a;
+} {11 1 11 1 |}
+do_execsql_test collateB-1.15 {
+  SELECT *,'|' FROM t2, t1, t3 WHERE b=x2 AND a=x1 AND 1=a;
+} {11 1 1 11 |}
+do_execsql_test collateB-1.16 {
+  SELECT *,'|' FROM t1, t2, t3 WHERE b=x2 AND a=x1 AND 1=a;
+} {1 11 1 11 |}
+do_execsql_test collateB-1.17 {
+  SELECT *,'|' FROM t1, t2, t3 WHERE b=x2 AND a=x1 AND 1=a;
+} {1 11 1 11 |}
+
+#-------------------------------------------------------------------------
+# Test an assert() failure that was occuring if an index were created
+# on a column explicitly declared "COLLATE binary".
+reset_db
+do_execsql_test 2.1 {
+  CREATE TABLE t4(a COLLATE binary);
+  CREATE INDEX i4 ON t4(a);
+  INSERT INTO t4 VALUES('one'), ('two'), ('three');
+  VACUUM;
+} 
+
+integrity_check 2.2
+
+finish_test
diff --git a/test/colmeta.test b/test/colmeta.test
new file mode 100644
index 0000000000000000000000000000000000000000..21b0e0f38a59ef6de9f3f8f3f184dbd17652c647
--- /dev/null
+++ b/test/colmeta.test
@@ -0,0 +1,110 @@
+#
+# 2006 February 9
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is the sqlite3_table_column_metadata() API.
+#
+# $Id: colmeta.test,v 1.4 2008/01/23 12:52:41 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Set up a schema in the main and temp test databases.
+do_test colmeta-0 {
+  execsql {
+    CREATE TABLE abc(a, b, c);
+    CREATE TABLE abc2(a PRIMARY KEY COLLATE NOCASE, b VARCHAR(32), c);
+    CREATE TABLE abc3(a NOT NULL, b INTEGER PRIMARY KEY, c);
+    CREATE TABLE abc5(w,x,y,z,PRIMARY KEY(x,z)) WITHOUT ROWID;
+    CREATE TABLE abc6(rowid TEXT COLLATE rtrim, oid REAL, _rowid_ BLOB);
+  }
+  ifcapable autoinc {
+    execsql {
+      CREATE TABLE abc4(a, b INTEGER PRIMARY KEY AUTOINCREMENT, c);
+    }
+  }
+  ifcapable view {
+    execsql {
+      CREATE VIEW v1 AS SELECT * FROM abc2;
+    }
+  }
+} {}
+
+
+# Return values are of the form:
+#
+#   {<decl-type> <collation> <not null> <primary key> <auto increment>}
+#
+set tests {
+  1  {main abc a}                {0 {{} BINARY 0 0 0}}
+  2  {{} abc a}                  {0 {{} BINARY 0 0 0}}
+  3  {{} abc2 b}                 {0 {VARCHAR(32) BINARY 0 0 0}}
+  4  {main abc2 b}               {0 {VARCHAR(32) BINARY 0 0 0}}
+  5  {{} abc2 a}                 {0 {{} NOCASE 0 1 0}}
+  6  {{} abc3 a}                 {0 {{} BINARY 1 0 0}}
+  7  {{} abc3 b}                 {0 {INTEGER BINARY 0 1 0}}
+  13 {main abc rowid}            {0 {INTEGER BINARY 0 1 0}}
+  14 {main abc3 rowid}           {0 {INTEGER BINARY 0 1 0}}
+  16 {main abc d}                {1 {no such table column: abc.d}}
+  20 {main abc5 w}               {0 {{} BINARY 0 0 0}}
+  21 {main abc5 x}               {0 {{} BINARY 1 1 0}}
+  22 {main abc5 y}               {0 {{} BINARY 0 0 0}}
+  23 {main abc5 z}               {0 {{} BINARY 1 1 0}}
+  24 {main abc5 rowid}           {1 {no such table column: abc5.rowid}}
+  30 {main abc6 rowid}           {0 {TEXT rtrim 0 0 0}}
+  31 {main abc6 oid}             {0 {REAL BINARY 0 0 0}}
+  32 {main abc6 _rowid_}         {0 {BLOB BINARY 0 0 0}}
+}
+ifcapable autoinc {
+  set tests [concat $tests {
+    100 {{} abc4 b}              {0 {INTEGER BINARY 0 1 1}}
+    101 {main abc4 rowid}        {0 {INTEGER BINARY 0 1 1}}
+  }]
+}
+ifcapable view {
+  set tests [concat $tests {
+    200 {{} v1 a}                {1 {no such table column: v1.a}}
+    201 {main v1 b}              {1 {no such table column: v1.b}}
+    202 {main v1 badname}        {1 {no such table column: v1.badname}}
+    203 {main v1 rowid}          {1 {no such table column: v1.rowid}}
+  }]
+}
+
+foreach {tn params results} $tests {
+  set ::DB [sqlite3_connection_pointer db]
+
+  set tstbody [concat sqlite3_table_column_metadata $::DB $params] 
+  do_test colmeta-$tn.1 {
+    list [catch $tstbody msg] [set msg]
+  } $results
+
+  db close
+  sqlite3 db test.db
+
+  set ::DB [sqlite3_connection_pointer db]
+  set tstbody [concat sqlite3_table_column_metadata $::DB $params] 
+  do_test colmeta-$tn.2 {
+    list [catch $tstbody msg] [set msg]
+  } $results
+}
+
+# Calling sqlite3_table_column_metadata with a NULL column name merely
+# checks for the existance of the table.
+#
+do_test colmeta-300 {
+  catch {sqlite3_table_column_metadata $::DB main xyzzy} res
+} {1}
+do_test colmeta-301 {
+  catch {sqlite3_table_column_metadata $::DB main abc} res
+} {0}
+
+
+finish_test
diff --git a/test/colname.test b/test/colname.test
new file mode 100644
index 0000000000000000000000000000000000000000..24fb51acfcfe924bb4526b7f31fc225b526a21bb
--- /dev/null
+++ b/test/colname.test
@@ -0,0 +1,447 @@
+# 2008 July 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. 
+#
+# The focus of this file is testing how SQLite generates the names
+# of columns in a result set.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Rules (applied in order):
+#
+# (1) If there is an AS clause, use it.
+#
+# (2) A non-trival expression (not a table column name) then the name is
+#     a copy of the expression text.
+#
+# (3) If short_column_names=ON, then just the abbreviated column name without
+#     the table name.
+#
+# (4) When short_column_names=OFF and full_column_names=OFF then
+#     use case (2) for simple queries and case (5) for joins.
+#
+# (5) When short_column_names=OFF and full_column_names=ON then
+#     use the form: TABLE.COLUMN
+#
+
+
+# Verify the default settings for short_column_name and full_column_name
+#
+do_test colname-1.1 {
+  db eval {PRAGMA short_column_names}
+} {1}
+do_test colname-1.2 {
+  db eval {PRAGMA full_column_names}
+} {0}
+
+# Tests for then short=ON and full=any
+#
+do_test colname-2.1 {
+  db eval {
+    CREATE TABLE tabc(a,b,c);
+    INSERT INTO tabc VALUES(1,2,3);
+    CREATE TABLE txyz(x,y,z);
+    INSERT INTO txyz VALUES(4,5,6);
+    CREATE TABLE tboth(a,b,c,x,y,z);
+    INSERT INTO tboth VALUES(11,12,13,14,15,16);
+    CREATE VIEW v1 AS SELECT tabC.a, txyZ.x, * 
+      FROM tabc, txyz ORDER BY 1 LIMIT 1;
+    CREATE VIEW v2 AS SELECT tabC.a, txyZ.x, tboTh.a, tbotH.x, *
+      FROM tabc, txyz, tboth ORDER BY 1 LIMIT 1;
+  }
+  execsql2 {
+    SELECT * FROM tabc;
+  }
+} {a 1 b 2 c 3}
+do_test colname-2.2 {
+  execsql2 {
+    SELECT Tabc.a, tAbc.b, taBc.c, * FROM tabc
+  }
+} {a 1 b 2 c 3 a 1 b 2 c 3}
+do_test colname-2.3 {
+  execsql2 {
+    SELECT +tabc.a, -tabc.b, tabc.c, * FROM tabc
+  }
+} {+tabc.a 1 -tabc.b -2 c 3 a 1 b 2 c 3}
+do_test colname-2.4 {
+  execsql2 {
+    SELECT +tabc.a AS AAA, -tabc.b AS BBB, tabc.c CCC, * FROM tabc
+  }
+} {AAA 1 BBB -2 CCC 3 a 1 b 2 c 3}
+do_test colname-2.5 {
+  execsql2 {
+    SELECT tabc.a, txyz.x, * FROM tabc, txyz;
+  }
+} {a 1 x 4 a 1 b 2 c 3 x 4 y 5 z 6}
+do_test colname-2.6 {
+  execsql2 {
+    SELECT tabc.a, txyz.x, tabc.*, txyz.* FROM tabc, txyz;
+  }
+} {a 1 x 4 a 1 b 2 c 3 x 4 y 5 z 6}
+do_test colname-2.7 {
+  execsql2 {
+    SELECT tabc.a, txyz.x, tboth.a, tboth.x, * FROM tabc, txyz, tboth;
+  }
+} {a 11 x 14 a 11 x 14 a 11 b 12 c 13 x 14 y 15 z 16 a 11 b 12 c 13 x 14 y 15 z 16}
+do_test colname-2.8 {
+  execsql2 {
+    SELECT * FROM v1 ORDER BY 2;
+  }
+} {a 1 x 4 a:1 1 b 2 c 3 x:1 4 y 5 z 6}
+do_test colname-2.9 {
+  execsql2 {
+    SELECT * FROM v2 ORDER BY 2;
+  }
+} {a 1 x 4 a:1 11 x:1 14 a:2 1 b 2 c 3 x:2 4 y 5 z 6 a:3 11 b:1 12 c:1 13 x:3 14 y:1 15 z:1 16}
+
+
+# Tests for short=OFF and full=OFF
+#
+do_test colname-3.1 {
+  db eval {
+    PRAGMA short_column_names=OFF;
+    PRAGMA full_column_names=OFF;
+    CREATE VIEW v3 AS SELECT tabC.a, txyZ.x, *
+      FROM tabc, txyz ORDER BY 1 LIMIT 1;
+    CREATE VIEW v4 AS SELECT tabC.a, txyZ.x, tboTh.a, tbotH.x, * 
+      FROM tabc, txyz, tboth ORDER BY 1 LIMIT 1;
+  }
+  execsql2 {
+    SELECT * FROM tabc;
+  }
+} {a 1 b 2 c 3}
+do_test colname-3.2 {
+  execsql2 {
+    SELECT Tabc.a, tAbc.b, taBc.c FROM tabc
+  }
+} {Tabc.a 1 tAbc.b 2 taBc.c 3}
+do_test colname-3.3 {
+  execsql2 {
+    SELECT +tabc.a, -tabc.b, tabc.c FROM tabc
+  }
+} {+tabc.a 1 -tabc.b -2 tabc.c 3}
+do_test colname-3.4 {
+  execsql2 {
+    SELECT +tabc.a AS AAA, -tabc.b AS BBB, tabc.c CCC FROM tabc
+  }
+} {AAA 1 BBB -2 CCC 3}
+do_test colname-3.5 {
+  execsql2 {
+    SELECT Tabc.a, Txyz.x, * FROM tabc, txyz;
+  }
+} {Tabc.a 1 Txyz.x 4 a 1 b 2 c 3 x 4 y 5 z 6}
+do_test colname-3.6 {
+  execsql2 {
+    SELECT tabc.*, txyz.* FROM tabc, txyz;
+  }
+} {a 1 b 2 c 3 x 4 y 5 z 6}
+do_test colname-3.7 {
+  execsql2 {
+    SELECT * FROM tabc, txyz, tboth;
+  }
+} {a 11 b 12 c 13 x 14 y 15 z 16 a 11 b 12 c 13 x 14 y 15 z 16}
+do_test colname-3.8 {
+  execsql2 {
+    SELECT v1.a, * FROM v1 ORDER BY 2;
+  }
+} {v1.a 1 a 1 x 4 a:1 1 b 2 c 3 x:1 4 y 5 z 6}
+do_test colname-3.9 {
+  execsql2 {
+    SELECT * FROM v2 ORDER BY 2;
+  }
+} {a 1 x 4 a:1 11 x:1 14 a:2 1 b 2 c 3 x:2 4 y 5 z 6 a:3 11 b:1 12 c:1 13 x:3 14 y:1 15 z:1 16}
+do_test colname-3.10 {
+  execsql2 {
+    SELECT * FROM v3 ORDER BY 2;
+  }
+} {a 1 x 4 a:1 1 b 2 c 3 x:1 4 y 5 z 6}
+do_test colname-3.11 {
+  execsql2 {
+    SELECT * FROM v4 ORDER BY 2;
+  }
+} {a 1 x 4 a:1 11 x:1 14 a:2 1 b 2 c 3 x:2 4 y 5 z 6 a:3 11 b:1 12 c:1 13 x:3 14 y:1 15 z:1 16}
+
+# Test for short=OFF and full=ON
+#
+do_test colname-4.1 {
+  db eval {
+    PRAGMA short_column_names=OFF;
+    PRAGMA full_column_names=ON;
+    CREATE VIEW v5 AS SELECT tabC.a, txyZ.x, *
+      FROM tabc, txyz ORDER BY 1 LIMIT 1;
+    CREATE VIEW v6 AS SELECT tabC.a, txyZ.x, tboTh.a, tbotH.x, * 
+      FROM tabc, txyz, tboth ORDER BY 1 LIMIT 1;
+  }
+  execsql2 {
+    SELECT * FROM tabc;
+  }
+} {tabc.a 1 tabc.b 2 tabc.c 3}
+do_test colname-4.2 {
+  execsql2 {
+    SELECT Tabc.a, tAbc.b, taBc.c FROM tabc
+  }
+} {tabc.a 1 tabc.b 2 tabc.c 3}
+do_test colname-4.3 {
+  execsql2 {
+    SELECT +tabc.a, -tabc.b, tabc.c FROM tabc
+  }
+} {+tabc.a 1 -tabc.b -2 tabc.c 3}
+do_test colname-4.4 {
+  execsql2 {
+    SELECT +tabc.a AS AAA, -tabc.b AS BBB, tabc.c CCC FROM tabc
+  }
+} {AAA 1 BBB -2 CCC 3}
+do_test colname-4.5 {
+  execsql2 {
+    SELECT Tabc.a, Txyz.x, * FROM tabc, txyz;
+  }
+} {tabc.a 1 txyz.x 4 tabc.a 1 tabc.b 2 tabc.c 3 txyz.x 4 txyz.y 5 txyz.z 6}
+do_test colname-4.6 {
+  execsql2 {
+    SELECT tabc.*, txyz.* FROM tabc, txyz;
+  }
+} {tabc.a 1 tabc.b 2 tabc.c 3 txyz.x 4 txyz.y 5 txyz.z 6}
+do_test colname-4.7 {
+  execsql2 {
+    SELECT * FROM tabc, txyz, tboth;
+  }
+} {tabc.a 1 tabc.b 2 tabc.c 3 txyz.x 4 txyz.y 5 txyz.z 6 tboth.a 11 tboth.b 12 tboth.c 13 tboth.x 14 tboth.y 15 tboth.z 16}
+do_test colname-4.8 {
+  execsql2 {
+    SELECT * FROM v1 ORDER BY 2;
+  }
+} {v1.a 1 v1.x 4 v1.a:1 1 v1.b 2 v1.c 3 v1.x:1 4 v1.y 5 v1.z 6}
+do_test colname-4.9 {
+  execsql2 {
+    SELECT * FROM v2 ORDER BY 2;
+  }
+} {v2.a 1 v2.x 4 v2.a:1 11 v2.x:1 14 v2.a:2 1 v2.b 2 v2.c 3 v2.x:2 4 v2.y 5 v2.z 6 v2.a:3 11 v2.b:1 12 v2.c:1 13 v2.x:3 14 v2.y:1 15 v2.z:1 16}
+do_test colname-4.10 {
+  execsql2 {
+    SELECT * FROM v3 ORDER BY 2;
+  }
+} {v3.a 1 v3.x 4 v3.a:1 1 v3.b 2 v3.c 3 v3.x:1 4 v3.y 5 v3.z 6}
+do_test colname-4.11 {
+  execsql2 {
+    SELECT * FROM v4 ORDER BY 2;
+  }
+} {v4.a 1 v4.x 4 v4.a:1 11 v4.x:1 14 v4.a:2 1 v4.b 2 v4.c 3 v4.x:2 4 v4.y 5 v4.z 6 v4.a:3 11 v4.b:1 12 v4.c:1 13 v4.x:3 14 v4.y:1 15 v4.z:1 16}
+do_test colname-4.12 {
+  execsql2 {
+    SELECT * FROM v5 ORDER BY 2;
+  }
+} {v5.a 1 v5.x 4 v5.a:1 1 v5.b 2 v5.c 3 v5.x:1 4 v5.y 5 v5.z 6}
+do_test colname-4.13 {
+  execsql2 {
+    SELECT * FROM v6 ORDER BY 2;
+  }
+} {v6.a 1 v6.x 4 v6.a:1 11 v6.x:1 14 v6.a:2 1 v6.b 2 v6.c 3 v6.x:2 4 v6.y 5 v6.z 6 v6.a:3 11 v6.b:1 12 v6.c:1 13 v6.x:3 14 v6.y:1 15 v6.z:1 16}
+
+# ticket #3229
+do_test colname-5.1 {
+  lreplace [db eval {
+    SELECT x.* FROM sqlite_master X LIMIT 1;
+  }] 3 3 x
+} {table tabc tabc x {CREATE TABLE tabc(a,b,c)}}
+
+# ticket #3370, #3371, #3372
+#
+do_test colname-6.1 {
+  db close
+  sqlite3 db test.db
+  db eval {
+    CREATE TABLE t6(a, ['a'], ["a"], "[a]", [`a`]);
+    INSERT INTO t6 VALUES(1,2,3,4,5);
+  }
+  execsql2 {SELECT * FROM t6}
+} {a 1 'a' 2 {"a"} 3 {[a]} 4 `a` 5}
+do_test colname-6.2 {
+  execsql2 {SELECT ['a'], [`a`], "[a]", [a], ["a"] FROM t6}
+} {'a' 2 `a` 5 {[a]} 4 a 1 {"a"} 3}
+do_test colname-6.3 {
+  execsql2 {SELECT "'a'", "`a`", "[a]", "a", """a""" FROM t6}
+} {'a' 2 `a` 5 {[a]} 4 a 1 {"a"} 3}
+do_test colname-6.4 {
+  execsql2 {SELECT `'a'`, ```a```, `[a]`, `a`, `"a"` FROM t6}
+} {'a' 2 `a` 5 {[a]} 4 a 1 {"a"} 3}
+do_test colname-6.11 {
+  execsql2 {SELECT a, max(a) AS m FROM t6}
+} {a 1 m 1}
+do_test colname-6.12 {
+  execsql2 {SELECT `a`, max(a) AS m FROM t6}
+} {a 1 m 1}
+do_test colname-6.13 {
+  execsql2 {SELECT "a", max(a) AS m FROM t6}
+} {a 1 m 1}
+do_test colname-6.14 {
+  execsql2 {SELECT [a], max(a) AS m FROM t6}
+} {a 1 m 1}
+do_test colname-6.15 {
+  execsql2 {SELECT t6.a, max(a) AS m FROM t6}
+} {a 1 m 1}
+do_test colname-6.16 {
+  execsql2 {SELECT ['a'], max(['a']) AS m FROM t6}
+} {'a' 2 m 2}
+do_test colname-6.17 {
+  execsql2 {SELECT ["a"], max(["a"]) AS m FROM t6}
+} {{"a"} 3 m 3}
+do_test colname-6.18 {
+  execsql2 {SELECT "[a]", max("[a]") AS m FROM t6}
+} {{[a]} 4 m 4}
+do_test colname-6.19 {
+  execsql2 {SELECT "`a`", max([`a`]) AS m FROM t6}
+} {`a` 5 m 5}
+
+
+# Ticket #3429
+# We cannot find anything wrong, but it never hurts to add another
+# test case.
+#
+do_test colname-7.1 {
+  db eval {
+    CREATE TABLE t7(x INTEGER PRIMARY KEY, y);
+    INSERT INTO t7 VALUES(1,2);
+  }
+  execsql2 {SELECT rowid, * FROM t7}
+} {x 1 x 1 y 2}
+
+# Tickets #3893 and #3984.  (Same problem; independently reported)
+#
+do_test colname-8.1 {
+  db eval {
+    CREATE TABLE "t3893"("x");
+    INSERT INTO t3893 VALUES(123);
+    SELECT "y"."x" FROM (SELECT "x" FROM "t3893") AS "y";
+  }
+} {123}
+
+# 2017-07-29: Interaction between column naming and query flattening.
+# For years now, the query flattener has inserted AS clauses on the
+# outer query that were the original SQL text of the column.  This caused
+# column-name shifts when the query flattener was enhanced, breaking
+# legacy applications.  See https://sqlite.org/src/info/41c27bc0ff1d3135
+# for details.
+#
+# To fix this, the column naming logic was moved ahead of the query
+# flattener so that column names are assigned before the query flattener
+# runs.
+#
+db close
+sqlite3 db :memory:
+do_test colname-9.100 {
+  db eval {
+    CREATE TABLE t1(a,b);
+    INSERT INTO t1 VALUES(1,2);
+    CREATE VIEW v1(x,y) AS SELECT a,b FROM t1;
+  }
+  execsql2 {SELECT v1.x, (Y) FROM v1}
+  # Prior to the fix, this would return:  "v1.x 1 (Y) 2"
+} {x 1 y 2}
+do_test colname-9.110 {
+  execsql2 {SELECT * FROM v1}
+} {x 1 y 2}
+do_test colname-9.120 {
+  db eval {
+    CREATE VIEW v2(x,y) AS SELECT a,b FROM t1 LIMIT 10;
+  }
+  execsql2 {SELECT * FROM v2 WHERE 1}
+} {x 1 y 2}
+do_test colname-9.130 {
+  execsql2 {SELECT v2.x, [v2].[y] FROM v2 WHERE 1}
+} {x 1 y 2}
+do_test colname-9.140 {
+  execsql2 {SELECT +x, +y FROM v2 WHERE 1}
+} {+x 1 +y 2}
+
+do_test colname-9.200 {
+  db eval {
+    CREATE TABLE t2(c,d);
+    INSERT INTO t2 VALUES(3,4);
+    CREATE VIEW v3 AS SELECT c AS a, d AS b FROM t2;
+  }
+  execsql2 {SELECT t1.a, v3.a AS n FROM t1 LEFT JOIN v3}
+} {a 1 n 3}
+do_test colname-9.211 {
+  execsql2 {SELECT t1.a AS n, v3.a FROM t1 JOIN v3}
+} {n 1 a 3}
+do_test colname-9.210 {
+  execsql2 {SELECT t1.a, v3.a AS n FROM t1 JOIN v3}
+} {a 1 n 3}
+
+# 2017-12-23:  Ticket https://www.sqlite.org/src/info/3b4450072511e621
+# Inconsistent column names in CREATE TABLE AS
+#
+# Verify that the names of columns in the created table of a CREATE TABLE AS
+# are the same as the names of result columns in the SELECT statement.
+#
+do_execsql_test colname-9.300 {
+  DROP TABLE IF EXISTS t1;
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t1(aaa INT);
+  INSERT INTO t1(aaa) VALUES(123);
+}
+do_test colname-9.310 {
+  execsql2 {SELECT BBb FROM (SELECT aaa AS Bbb FROM t1)}
+} {Bbb 123}
+ifcapable vtab {
+  do_execsql_test colname-9.320 {
+    CREATE TABLE t2 AS SELECT BBb FROM (SELECT aaa AS Bbb FROM t1);
+    SELECT name FROM pragma_table_info('t2');
+  } {Bbb}
+}
+do_execsql_test colname-9.330 { -- added 2019-08-10 to invalidate
+  DROP TABLE IF EXISTS t1;      -- a couple assert()s that were
+  CREATE TABLE t1(a);           -- added by ticket 3b44500725
+  INSERT INTO t1 VALUES(17),(2),(99),(-3),(7);
+  SELECT (SELECT avg(a) UNION SELECT min(a) OVER()) FROM t1;
+} {17}
+
+# Issue detected by OSSFuzz on 2017-12-24 (Christmas Eve)
+# caused by check-in https://sqlite.org/src/info/6b2ff26c25
+#
+# Prior to being fixed, the following CREATE TABLE was dereferencing
+# a NULL pointer and segfaulting.
+#
+do_catchsql_test colname-9.400 {
+  CREATE TABLE t4 AS SELECT #0;
+} {1 {near "#0": syntax error}}
+
+# Issue detected by OSSFuzz on 2017-12-25 (Christmas Day)
+# also caused by check-in https://sqlite.org/src/info/6b2ff26c25
+#
+# Prior to being fixed, the following CREATE TABLE caused an
+# assertion fault.
+#
+do_catchsql_test colname-9.410 {
+  CREATE TABLE t5 AS SELECT RAISE(abort,a);
+} {1 {no such column: a}}
+
+# Make sure the quotation marks get removed from the column names
+# when constructing a new table from an aggregate SELECT.
+# Email from Juergen Palm on 2017-07-11.
+#
+do_execsql_test colname-10.100 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1("with space" TEXT);
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t2 AS SELECT "with space" FROM t1;
+  PRAGMA table_info(t2);
+} {0 {with space} TEXT 0 {} 0}
+do_execsql_test colname-10.110 {
+  DROP TABLE IF EXISTS t3;
+  CREATE TABLE t3 AS SELECT "with space" FROM t1 GROUP BY 1;
+  PRAGMA table_info(t3);
+} {0 {with space} TEXT 0 {} 0}
+
+
+finish_test
diff --git a/test/columncount.test b/test/columncount.test
new file mode 100644
index 0000000000000000000000000000000000000000..d9956b40f5b3c5232e6bd15904c09741145a4f31
--- /dev/null
+++ b/test/columncount.test
@@ -0,0 +1,62 @@
+# 2021 February 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the sqlite3_column_count() API.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix columncount
+
+# If SQLITE_OMIT_ALTERTABLE is defined, omit this file.
+ifcapable !altertable {
+  finish_test
+  return
+}
+
+proc do_ccsql_test {tn sql res} {
+
+  uplevel [list do_test $tn [subst -nocommands {
+    set stmt [sqlite3_prepare_v2 db {$sql} -1 dummy]
+    set res [sqlite3_column_count [set stmt]]
+    while {[sqlite3_step [set stmt]]=="SQLITE_ROW"} {
+      for {set i 0} {[set i] < [sqlite3_data_count [set stmt]]} {incr i} {
+        lappend res [sqlite3_column_text [set stmt] [set i]]
+      }
+    }
+  
+    set rc [sqlite3_finalize [set stmt]]
+    if {[set rc]!="SQLITE_OK"} {
+      error [sqlite3_errmsg db]
+    }
+
+    set res
+  }] [list {*}$res]]
+
+}
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(x, y, z);
+  INSERT INTO t1 VALUES('a', 'b', 'c');
+}
+
+do_ccsql_test 1.1 { SELECT * FROM t1 }      {3    a b c}
+do_ccsql_test 1.2 { CREATE TABLE t2(a, b) } {0}
+
+do_ccsql_test 1.3 { ALTER TABLE t2 RENAME TO t3 } {0}
+do_ccsql_test 1.4 { ALTER TABLE t3 RENAME b TO ccc } {0}
+do_ccsql_test 1.5 { ALTER TABLE t3 ADD COLUMN d } {0}
+
+do_ccsql_test 1.6 { DROP TABLE t3 } {0}
+
+
+
+finish_test
diff --git a/test/conflict.test b/test/conflict.test
new file mode 100644
index 0000000000000000000000000000000000000000..ba3ad9b0dd9ca1673b34f1419f99bc280f9d7ab9
--- /dev/null
+++ b/test/conflict.test
@@ -0,0 +1,891 @@
+# 2002 January 29
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests for the conflict resolution extension
+# to SQLite.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !conflict {
+  finish_test
+  return
+}
+
+# Create tables for the first group of tests.
+#
+do_test conflict-1.0 {
+  execsql {
+    CREATE TABLE t1(a, b, c, UNIQUE(a,b));
+    CREATE TABLE t2(x);
+    SELECT c FROM t1 ORDER BY c;
+  }
+} {}
+
+# Six columns of configuration data as follows:
+#
+#   i      The reference number of the test
+#   cmd    An INSERT or REPLACE command to execute against table t1
+#   t0     True if there is an error from $cmd
+#   t1     Content of "c" column of t1 assuming no error in $cmd
+#   t2     Content of "x" column of t2
+#   t3     Number of temporary files created by this test
+#
+foreach {i cmd t0 t1 t2 t3} {
+  1 INSERT                  1 {}  1  0
+  2 {INSERT OR IGNORE}      0 3   1  0
+  3 {INSERT OR REPLACE}     0 4   1  0
+  4 REPLACE                 0 4   1  0
+  5 {INSERT OR FAIL}        1 {}  1  0
+  6 {INSERT OR ABORT}       1 {}  1  0
+  7 {INSERT OR ROLLBACK}    1 {}  {} 0
+} {
+  do_test conflict-1.$i {
+    set ::sqlite_opentemp_count 0
+    set r0 [catch {execsql [subst {
+      DELETE FROM t1;
+      DELETE FROM t2;
+      INSERT INTO t1 VALUES(1,2,3);
+      BEGIN;
+      INSERT INTO t2 VALUES(1); 
+      $cmd INTO t1 VALUES(1,2,4);
+    }]} r1]
+    catch {execsql {COMMIT}}
+    if {$r0} {set r1 {}} {set r1 [execsql {SELECT c FROM t1}]}
+    set r2 [execsql {SELECT x FROM t2}]
+    set r3 $::sqlite_opentemp_count
+    list $r0 $r1 $r2 $r3
+  } [list $t0 $t1 $t2 $t3]
+}
+
+# Create tables for the first group of tests.
+#
+do_test conflict-2.0 {
+  execsql {
+    DROP TABLE t1;
+    DROP TABLE t2;
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c, UNIQUE(a,b));
+    CREATE TABLE t2(x);
+    SELECT c FROM t1 ORDER BY c;
+  }
+} {}
+
+# Six columns of configuration data as follows:
+#
+#   i      The reference number of the test
+#   cmd    An INSERT or REPLACE command to execute against table t1
+#   t0     True if there is an error from $cmd
+#   t1     Content of "c" column of t1 assuming no error in $cmd
+#   t2     Content of "x" column of t2
+#
+foreach {i cmd t0 t1 t2} {
+  1 INSERT                  1 {}  1
+  2 {INSERT OR IGNORE}      0 3   1
+  3 {INSERT OR REPLACE}     0 4   1
+  4 REPLACE                 0 4   1
+  5 {INSERT OR FAIL}        1 {}  1
+  6 {INSERT OR ABORT}       1 {}  1
+  7 {INSERT OR ROLLBACK}    1 {}  {}
+} {
+  do_test conflict-2.$i {
+    set r0 [catch {execsql [subst {
+      DELETE FROM t1;
+      DELETE FROM t2;
+      INSERT INTO t1 VALUES(1,2,3);
+      BEGIN;
+      INSERT INTO t2 VALUES(1); 
+      $cmd INTO t1 VALUES(1,2,4);
+    }]} r1]
+    catch {execsql {COMMIT}}
+    if {$r0} {set r1 {}} {set r1 [execsql {SELECT c FROM t1}]}
+    set r2 [execsql {SELECT x FROM t2}]
+    list $r0 $r1 $r2
+  } [list $t0 $t1 $t2]
+}
+
+# Create tables for the first group of tests.
+#
+do_test conflict-3.0 {
+  execsql {
+    DROP TABLE t1;
+    DROP TABLE t2;
+    CREATE TABLE t1(a, b, c INTEGER, PRIMARY KEY(c), UNIQUE(a,b));
+    CREATE TABLE t2(x);
+    SELECT c FROM t1 ORDER BY c;
+  }
+} {}
+
+# Six columns of configuration data as follows:
+#
+#   i      The reference number of the test
+#   cmd    An INSERT or REPLACE command to execute against table t1
+#   t0     True if there is an error from $cmd
+#   t1     Content of "c" column of t1 assuming no error in $cmd
+#   t2     Content of "x" column of t2
+#
+foreach {i cmd t0 t1 t2} {
+  1 INSERT                  1 {}  1
+  2 {INSERT OR IGNORE}      0 3   1
+  3 {INSERT OR REPLACE}     0 4   1
+  4 REPLACE                 0 4   1
+  5 {INSERT OR FAIL}        1 {}  1
+  6 {INSERT OR ABORT}       1 {}  1
+  7 {INSERT OR ROLLBACK}    1 {}  {}
+} {
+  do_test conflict-3.$i {
+    set r0 [catch {execsql [subst {
+      DELETE FROM t1;
+      DELETE FROM t2;
+      INSERT INTO t1 VALUES(1,2,3);
+      BEGIN;
+      INSERT INTO t2 VALUES(1); 
+      $cmd INTO t1 VALUES(1,2,4);
+    }]} r1]
+    catch {execsql {COMMIT}}
+    if {$r0} {set r1 {}} {set r1 [execsql {SELECT c FROM t1}]}
+    set r2 [execsql {SELECT x FROM t2}]
+    list $r0 $r1 $r2
+  } [list $t0 $t1 $t2]
+}
+
+do_test conflict-4.0 {
+  execsql {
+    DROP TABLE t2;
+    CREATE TABLE t2(x);
+    SELECT x FROM t2;
+  }
+} {}
+
+# Six columns of configuration data as follows:
+#
+#   i      The reference number of the test
+#   conf1  The conflict resolution algorithm on the UNIQUE constraint
+#   cmd    An INSERT or REPLACE command to execute against table t1
+#   t0     True if there is an error from $cmd
+#   t1     Content of "c" column of t1 assuming no error in $cmd
+#   t2     Content of "x" column of t2
+#
+foreach {i conf1 cmd t0 t1 t2} {
+  1 {}       INSERT                  1 {}  1
+  2 REPLACE  INSERT                  0 4   1
+  3 IGNORE   INSERT                  0 3   1
+  4 FAIL     INSERT                  1 {}  1
+  5 ABORT    INSERT                  1 {}  1
+  6 ROLLBACK INSERT                  1 {}  {}
+  7 REPLACE  {INSERT OR IGNORE}      0 3   1
+  8 IGNORE   {INSERT OR REPLACE}     0 4   1
+  9 FAIL     {INSERT OR IGNORE}      0 3   1
+ 10 ABORT    {INSERT OR REPLACE}     0 4   1
+ 11 ROLLBACK {INSERT OR IGNORE }     0 3   1
+} {
+  do_test conflict-4.$i {
+    if {$conf1!=""} {set conf1 "ON CONFLICT $conf1"}
+    set r0 [catch {execsql [subst {
+      DROP TABLE t1;
+      CREATE TABLE t1(a,b,c,UNIQUE(a,b) $conf1);
+      DELETE FROM t2;
+      INSERT INTO t1 VALUES(1,2,3);
+      BEGIN;
+      INSERT INTO t2 VALUES(1); 
+      $cmd INTO t1 VALUES(1,2,4);
+    }]} r1]
+    catch {execsql {COMMIT}}
+    if {$r0} {set r1 {}} {set r1 [execsql {SELECT c FROM t1}]}
+    set r2 [execsql {SELECT x FROM t2}]
+    list $r0 $r1 $r2
+  } [list $t0 $t1 $t2]
+}
+
+do_test conflict-5.0 {
+  execsql {
+    DROP TABLE t2;
+    CREATE TABLE t2(x);
+    SELECT x FROM t2;
+  }
+} {}
+
+# Six columns of configuration data as follows:
+#
+#   i      The reference number of the test
+#   conf1  The conflict resolution algorithm on the NOT NULL constraint
+#   cmd    An INSERT or REPLACE command to execute against table t1
+#   t0     True if there is an error from $cmd
+#   t1     Content of "c" column of t1 assuming no error in $cmd
+#   t2     Content of "x" column of t2
+#
+foreach {i conf1 cmd t0 t1 t2} {
+  1 {}       INSERT                  1 {}  1
+  2 REPLACE  INSERT                  0 5   1
+  3 IGNORE   INSERT                  0 {}  1
+  4 FAIL     INSERT                  1 {}  1
+  5 ABORT    INSERT                  1 {}  1
+  6 ROLLBACK INSERT                  1 {}  {}
+  7 REPLACE  {INSERT OR IGNORE}      0 {}  1
+  8 IGNORE   {INSERT OR REPLACE}     0 5   1
+  9 FAIL     {INSERT OR IGNORE}      0 {}  1
+ 10 ABORT    {INSERT OR REPLACE}     0 5   1
+ 11 ROLLBACK {INSERT OR IGNORE}      0 {}  1
+ 12 {}       {INSERT OR IGNORE}      0 {}  1
+ 13 {}       {INSERT OR REPLACE}     0 5   1
+ 14 {}       {INSERT OR FAIL}        1 {}  1
+ 15 {}       {INSERT OR ABORT}       1 {}  1
+ 16 {}       {INSERT OR ROLLBACK}    1 {}  {}
+} {
+  if {$t0} {set t1 {NOT NULL constraint failed: t1.c}}
+  do_test conflict-5.$i {
+    if {$conf1!=""} {set conf1 "ON CONFLICT $conf1"}
+    set r0 [catch {execsql [subst {
+      DROP TABLE t1;
+      CREATE TABLE t1(a,b,c NOT NULL $conf1 DEFAULT 5);
+      DELETE FROM t2;
+      BEGIN;
+      INSERT INTO t2 VALUES(1); 
+      $cmd INTO t1 VALUES(1,2,NULL);
+    }]} r1]
+    catch {execsql {COMMIT}}
+    if {!$r0} {set r1 [execsql {SELECT c FROM t1}]}
+    set r2 [execsql {SELECT x FROM t2}]
+    list $r0 $r1 $r2
+  } [list $t0 $t1 $t2]
+}
+
+do_test conflict-6.0 {
+  execsql {
+    DROP TABLE t2;
+    CREATE TABLE t2(a,b,c);
+    INSERT INTO t2 VALUES(1,2,1);
+    INSERT INTO t2 VALUES(2,3,2);
+    INSERT INTO t2 VALUES(3,4,1);
+    INSERT INTO t2 VALUES(4,5,4);
+    SELECT c FROM t2 ORDER BY b;
+    CREATE TABLE t3(x);
+    INSERT INTO t3 VALUES(1);
+  }
+} {1 2 1 4}
+
+# Six columns of configuration data as follows:
+#
+#   i      The reference number of the test
+#   conf1  The conflict resolution algorithm on the UNIQUE constraint
+#   cmd    An UPDATE command to execute against table t1
+#   t0     True if there is an error from $cmd
+#   t1     Content of "b" column of t1 assuming no error in $cmd
+#   t2     Content of "x" column of t3
+#   t3     Number of temporary files for tables
+#   t4     Number of temporary files for statement journals
+#
+# Update (2007-08-21): Since temporary table files are now opened lazily, 
+# and none of the following tests use large quantities of data, t3 is always 0.
+#
+# Update (2016-03-04): Subjournals now also open lazily, so t4 is also always 0.
+#
+foreach {i conf1 cmd t0 t1 t2 t3 t4} {
+  1 {}       UPDATE                  1 {6 7 8 9}  1 0 0
+  2 REPLACE  UPDATE                  0 {7 6 9}    1 0 0
+  3 IGNORE   UPDATE                  0 {6 7 3 9}  1 0 0
+  4 FAIL     UPDATE                  1 {6 7 3 4}  1 0 0
+  5 ABORT    UPDATE                  1 {1 2 3 4}  1 0 0
+  6 ROLLBACK UPDATE                  1 {1 2 3 4}  0 0 0
+  7 REPLACE  {UPDATE OR IGNORE}      0 {6 7 3 9}  1 0 0
+  8 IGNORE   {UPDATE OR REPLACE}     0 {7 6 9}    1 0 0
+  9 FAIL     {UPDATE OR IGNORE}      0 {6 7 3 9}  1 0 0
+ 10 ABORT    {UPDATE OR REPLACE}     0 {7 6 9}    1 0 0
+ 11 ROLLBACK {UPDATE OR IGNORE}      0 {6 7 3 9}  1 0 0
+ 12 {}       {UPDATE OR IGNORE}      0 {6 7 3 9}  1 0 0
+ 13 {}       {UPDATE OR REPLACE}     0 {7 6 9}    1 0 0
+ 14 {}       {UPDATE OR FAIL}        1 {6 7 3 4}  1 0 0
+ 15 {}       {UPDATE OR ABORT}       1 {1 2 3 4}  1 0 0
+ 16 {}       {UPDATE OR ROLLBACK}    1 {1 2 3 4}  0 0 0
+} {
+  if {$t0} {set t1 {UNIQUE constraint failed: t1.a}}
+  if {[info exists TEMP_STORE] && $TEMP_STORE==3} {
+    set t3 0
+  } else {
+    set t3 [expr {$t3+$t4}]
+  }
+  do_test conflict-6.$i {
+    db close
+    sqlite3 db test.db 
+    if {$conf1!=""} {set conf1 "ON CONFLICT $conf1"}
+    execsql {pragma temp_store=file}
+    set ::sqlite_opentemp_count 0
+    set r0 [catch {execsql [subst {
+      DROP TABLE t1;
+      CREATE TABLE t1(a,b,c, UNIQUE(a) $conf1);
+      INSERT INTO t1 SELECT * FROM t2;
+      UPDATE t3 SET x=0;
+      BEGIN;
+      $cmd t3 SET x=1;
+      $cmd t1 SET b=b*2;
+      $cmd t1 SET a=c+5;
+    }]} r1]
+    catch {execsql {COMMIT}}
+    if {!$r0} {set r1 [execsql {SELECT a FROM t1 ORDER BY b}]}
+    set r2 [execsql {SELECT x FROM t3}]
+    list $r0 $r1 $r2 $::sqlite_opentemp_count
+  } [list $t0 $t1 $t2 $t3]
+}
+
+# Test to make sure a lot of IGNOREs don't cause a stack overflow
+#
+do_test conflict-7.1 {
+  execsql {
+    DROP TABLE t1;
+    DROP TABLE t2;
+    DROP TABLE t3;
+    CREATE TABLE t1(a unique, b);
+  }
+  for {set i 1} {$i<=50} {incr i} {
+    execsql "INSERT into t1 values($i,[expr {$i+1}]);"
+  }
+  execsql {
+    SELECT count(*), min(a), max(b) FROM t1;
+  }
+} {50 1 51}
+do_test conflict-7.2 {
+  execsql {
+    PRAGMA count_changes=on;
+    UPDATE OR IGNORE t1 SET a=1000;
+  }
+} {1}
+do_test conflict-7.2.1 {
+  db changes
+} {1}
+do_test conflict-7.3 {
+  execsql {
+    SELECT b FROM t1 WHERE a=1000;
+  }
+} {2}
+do_test conflict-7.4 {
+  execsql {
+    SELECT count(*) FROM t1;
+  }
+} {50}
+do_test conflict-7.5 {
+  execsql {
+    PRAGMA count_changes=on;
+    UPDATE OR REPLACE t1 SET a=1001;
+  }
+} {50}
+do_test conflict-7.5.1 {
+  db changes
+} {50}
+do_test conflict-7.6 {
+  execsql {
+    SELECT b FROM t1 WHERE a=1001;
+  }
+} {51}
+do_test conflict-7.7 {
+  execsql {
+    SELECT count(*) FROM t1;
+  }
+} {1}
+
+# Update for version 3: A SELECT statement no longer resets the change
+# counter (Test result changes from 0 to 50).
+do_test conflict-7.7.1 {
+  db changes
+} {50}
+
+# Make sure the row count is right for rows that are ignored on
+# an insert.
+#
+do_test conflict-8.1 {
+  execsql {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES(1,2);
+  }
+  execsql {
+    INSERT OR IGNORE INTO t1 VALUES(2,3);
+  }
+} {1}
+do_test conflict-8.1.1 {
+  db changes
+} {1}
+do_test conflict-8.2 {
+  execsql {
+    INSERT OR IGNORE INTO t1 VALUES(2,4);
+  }
+} {0}
+do_test conflict-8.2.1 {
+  db changes
+} {0}
+do_test conflict-8.3 {
+  execsql {
+    INSERT OR REPLACE INTO t1 VALUES(2,4);
+  }
+} {1}
+do_test conflict-8.3.1 {
+  db changes
+} {1}
+do_test conflict-8.4 {
+  execsql {
+    INSERT OR IGNORE INTO t1 SELECT * FROM t1;
+  }
+} {0}
+do_test conflict-8.4.1 {
+  db changes
+} {0}
+do_test conflict-8.5 {
+  execsql {
+    INSERT OR IGNORE INTO t1 SELECT a+2,b+2 FROM t1;
+  }
+} {2}
+do_test conflict-8.5.1 {
+  db changes
+} {2}
+do_test conflict-8.6 {
+  execsql {
+    INSERT OR IGNORE INTO t1 SELECT a+3,b+3 FROM t1;
+  }
+} {3}
+do_test conflict-8.6.1 {
+  db changes
+} {3}
+
+integrity_check conflict-8.99
+
+do_test conflict-9.1 {
+  execsql {
+    PRAGMA count_changes=0;
+    CREATE TABLE t2(
+      a INTEGER UNIQUE ON CONFLICT IGNORE,
+      b INTEGER UNIQUE ON CONFLICT FAIL,
+      c INTEGER UNIQUE ON CONFLICT REPLACE,
+      d INTEGER UNIQUE ON CONFLICT ABORT,
+      e INTEGER UNIQUE ON CONFLICT ROLLBACK
+    );
+    CREATE TABLE t3(x);
+    INSERT INTO t3 VALUES(1);
+    SELECT * FROM t3;
+  }
+} {1}
+do_test conflict-9.2 {
+  catchsql {
+    INSERT INTO t2 VALUES(1,1,1,1,1);
+    INSERT INTO t2 VALUES(2,2,2,2,2);
+    SELECT * FROM t2;
+  }
+} {0 {1 1 1 1 1 2 2 2 2 2}}
+do_test conflict-9.3 {
+  catchsql {
+    INSERT INTO t2 VALUES(1,3,3,3,3);
+    SELECT * FROM t2;
+  }
+} {0 {1 1 1 1 1 2 2 2 2 2}}
+do_test conflict-9.4 {
+  catchsql {
+    UPDATE t2 SET a=a+1 WHERE a=1;
+    SELECT * FROM t2;
+  }
+} {0 {1 1 1 1 1 2 2 2 2 2}}
+do_test conflict-9.5 {
+  catchsql {
+    INSERT INTO t2 VALUES(3,1,3,3,3);
+    SELECT * FROM t2;
+  }
+} {1 {UNIQUE constraint failed: t2.b}}
+do_test conflict-9.6 {
+  catchsql {
+    UPDATE t2 SET b=b+1 WHERE b=1;
+    SELECT * FROM t2;
+  }
+} {1 {UNIQUE constraint failed: t2.b}}
+do_test conflict-9.7 {
+  catchsql {
+    BEGIN;
+    UPDATE t3 SET x=x+1;
+    INSERT INTO t2 VALUES(3,1,3,3,3);
+    SELECT * FROM t2;
+  }
+} {1 {UNIQUE constraint failed: t2.b}}
+do_test conflict-9.8 {
+  execsql {COMMIT}
+  execsql {SELECT * FROM t3}
+} {2}
+do_test conflict-9.9 {
+  catchsql {
+    BEGIN;
+    UPDATE t3 SET x=x+1;
+    UPDATE t2 SET b=b+1 WHERE b=1;
+    SELECT * FROM t2;
+  }
+} {1 {UNIQUE constraint failed: t2.b}}
+do_test conflict-9.10 {
+  execsql {COMMIT}
+  execsql {SELECT * FROM t3}
+} {3}
+do_test conflict-9.11 {
+  catchsql {
+    INSERT INTO t2 VALUES(3,3,3,1,3);
+    SELECT * FROM t2;
+  }
+} {1 {UNIQUE constraint failed: t2.d}}
+do_test conflict-9.12 {
+  catchsql {
+    UPDATE t2 SET d=d+1 WHERE d=1;
+    SELECT * FROM t2;
+  }
+} {1 {UNIQUE constraint failed: t2.d}}
+do_test conflict-9.13 {
+  catchsql {
+    BEGIN;
+    UPDATE t3 SET x=x+1;
+    INSERT INTO t2 VALUES(3,3,3,1,3);
+    SELECT * FROM t2;
+  }
+} {1 {UNIQUE constraint failed: t2.d}}
+do_test conflict-9.14 {
+  execsql {COMMIT}
+  execsql {SELECT * FROM t3}
+} {4}
+do_test conflict-9.15 {
+  catchsql {
+    BEGIN;
+    UPDATE t3 SET x=x+1;
+    UPDATE t2 SET d=d+1 WHERE d=1;
+    SELECT * FROM t2;
+  }
+} {1 {UNIQUE constraint failed: t2.d}}
+do_test conflict-9.16 {
+  execsql {COMMIT}
+  execsql {SELECT * FROM t3}
+} {5}
+do_test conflict-9.17 {
+  catchsql {
+    INSERT INTO t2 VALUES(3,3,3,3,1);
+    SELECT * FROM t2;
+  }
+} {1 {UNIQUE constraint failed: t2.e}}
+do_test conflict-9.18 {
+  catchsql {
+    UPDATE t2 SET e=e+1 WHERE e=1;
+    SELECT * FROM t2;
+  }
+} {1 {UNIQUE constraint failed: t2.e}}
+do_test conflict-9.19 {
+  catchsql {
+    BEGIN;
+    UPDATE t3 SET x=x+1;
+    INSERT INTO t2 VALUES(3,3,3,3,1);
+    SELECT * FROM t2;
+  }
+} {1 {UNIQUE constraint failed: t2.e}}
+verify_ex_errcode conflict-9.21b SQLITE_CONSTRAINT_UNIQUE
+do_test conflict-9.20 {
+  catch {execsql {COMMIT}}
+  execsql {SELECT * FROM t3}
+} {5}
+do_test conflict-9.21 {
+  catchsql {
+    BEGIN;
+    UPDATE t3 SET x=x+1;
+    UPDATE t2 SET e=e+1 WHERE e=1;
+    SELECT * FROM t2;
+  }
+} {1 {UNIQUE constraint failed: t2.e}}
+verify_ex_errcode conflict-9.21b SQLITE_CONSTRAINT_UNIQUE
+do_test conflict-9.22 {
+  catch {execsql {COMMIT}}
+  execsql {SELECT * FROM t3}
+} {5}
+do_test conflict-9.23 {
+  catchsql {
+    INSERT INTO t2 VALUES(3,3,1,3,3);
+    SELECT * FROM t2;
+  }
+} {0 {2 2 2 2 2 3 3 1 3 3}}
+do_test conflict-9.24 {
+  catchsql {
+    UPDATE t2 SET c=c-1 WHERE c=2;
+    SELECT * FROM t2;
+  }
+} {0 {2 2 1 2 2}}
+do_test conflict-9.25 {
+  catchsql {
+    BEGIN;
+    UPDATE t3 SET x=x+1;
+    INSERT INTO t2 VALUES(3,3,1,3,3);
+    SELECT * FROM t2;
+  }
+} {0 {3 3 1 3 3}}
+do_test conflict-9.26 {
+  catch {execsql {COMMIT}}
+  execsql {SELECT * FROM t3}
+} {6}
+
+do_test conflict-10.1 {
+  catchsql {
+    DELETE FROM t1;
+    BEGIN;
+    INSERT OR ROLLBACK INTO t1 VALUES(1,2);
+    INSERT OR ROLLBACK INTO t1 VALUES(1,3);
+    COMMIT;
+  }
+  execsql {SELECT * FROM t1}
+} {}
+do_test conflict-10.2 {
+  catchsql {
+    CREATE TABLE t4(x);
+    CREATE UNIQUE INDEX t4x ON t4(x);
+    BEGIN;
+    INSERT OR ROLLBACK INTO t4 VALUES(1);
+    INSERT OR ROLLBACK INTO t4 VALUES(1);
+    COMMIT;
+  }
+  execsql {SELECT * FROM t4}
+} {}
+
+# Ticket #1171.  Make sure statement rollbacks do not
+# damage the database.
+#
+do_test conflict-11.1 {
+  execsql {
+    -- Create a database object (pages 2, 3 of the file)
+    BEGIN;
+      CREATE TABLE abc(a UNIQUE, b, c);
+      INSERT INTO abc VALUES(1, 2, 3);
+      INSERT INTO abc VALUES(4, 5, 6);
+      INSERT INTO abc VALUES(7, 8, 9);
+    COMMIT;
+  }
+
+  
+  # Set a small cache size so that changes will spill into
+  # the database file.  
+  execsql {
+    PRAGMA cache_size = 10;
+  }
+  
+  # Make lots of changes.  Because of the small cache, some
+  # (most?) of these changes will spill into the disk file.
+  # In other words, some of the changes will not be held in
+  # cache.
+  #
+  execsql {
+    BEGIN;
+      -- Make sure the pager is in EXCLUSIVE state.
+      CREATE TABLE def(d, e, f);
+      INSERT INTO def VALUES
+          ('xxxxxxxxxxxxxxx', 'yyyyyyyyyyyyyyyy', 'zzzzzzzzzzzzzzzz');
+      INSERT INTO def SELECT * FROM def;
+      INSERT INTO def SELECT * FROM def;
+      INSERT INTO def SELECT * FROM def;
+      INSERT INTO def SELECT * FROM def;
+      INSERT INTO def SELECT * FROM def;
+      INSERT INTO def SELECT * FROM def;
+      INSERT INTO def SELECT * FROM def;
+      DELETE FROM abc WHERE a = 4;
+  }
+
+  # Execute a statement that does a statement rollback due to
+  # a constraint failure.
+  #
+  catchsql {
+    INSERT INTO abc SELECT 10, 20, 30 FROM def;
+  }
+
+  # Rollback the database.  Verify that the state of the ABC table
+  # is unchanged from the beginning of the transaction.  In other words,
+  # make sure the DELETE on table ABC that occurred within the transaction
+  # had no effect.
+  #
+  execsql {
+    ROLLBACK;
+    SELECT * FROM abc;
+  }
+} {1 2 3 4 5 6 7 8 9}
+integrity_check conflict-11.2
+
+# Repeat test conflict-11.1 but this time commit.
+#
+do_test conflict-11.3 {
+  execsql {
+    BEGIN;
+      -- Make sure the pager is in EXCLUSIVE state.
+      UPDATE abc SET a=a+1;
+      CREATE TABLE def(d, e, f);
+      INSERT INTO def VALUES
+          ('xxxxxxxxxxxxxxx', 'yyyyyyyyyyyyyyyy', 'zzzzzzzzzzzzzzzz');
+      INSERT INTO def SELECT * FROM def;
+      INSERT INTO def SELECT * FROM def;
+      INSERT INTO def SELECT * FROM def;
+      INSERT INTO def SELECT * FROM def;
+      INSERT INTO def SELECT * FROM def;
+      INSERT INTO def SELECT * FROM def;
+      INSERT INTO def SELECT * FROM def;
+      DELETE FROM abc WHERE a = 4;
+  }
+  catchsql {
+    INSERT INTO abc SELECT 10, 20, 30 FROM def;
+  }
+  execsql {
+    ROLLBACK;
+    SELECT * FROM abc;
+  }
+} {1 2 3 4 5 6 7 8 9}
+# Repeat test conflict-11.1 but this time commit.
+#
+do_test conflict-11.5 {
+  execsql {
+    BEGIN;
+      -- Make sure the pager is in EXCLUSIVE state.
+      CREATE TABLE def(d, e, f);
+      INSERT INTO def VALUES
+          ('xxxxxxxxxxxxxxx', 'yyyyyyyyyyyyyyyy', 'zzzzzzzzzzzzzzzz');
+      INSERT INTO def SELECT * FROM def;
+      INSERT INTO def SELECT * FROM def;
+      INSERT INTO def SELECT * FROM def;
+      INSERT INTO def SELECT * FROM def;
+      INSERT INTO def SELECT * FROM def;
+      INSERT INTO def SELECT * FROM def;
+      INSERT INTO def SELECT * FROM def;
+      DELETE FROM abc WHERE a = 4;
+  }
+  catchsql {
+    INSERT INTO abc SELECT 10, 20, 30 FROM def;
+  }
+  execsql {
+    COMMIT;
+    SELECT * FROM abc;
+  }
+} {1 2 3 7 8 9}
+integrity_check conflict-11.6
+
+# Make sure UPDATE OR REPLACE works on tables that have only
+# an INTEGER PRIMARY KEY.
+#
+do_test conflict-12.1 {
+  execsql {
+    CREATE TABLE t5(a INTEGER PRIMARY KEY, b text);
+    INSERT INTO t5 VALUES(1,'one');
+    INSERT INTO t5 VALUES(2,'two');
+    SELECT * FROM t5
+  }
+} {1 one 2 two}
+do_test conflict-12.2 {
+  execsql {
+    UPDATE OR IGNORE t5 SET a=a+1 WHERE a=1;
+    SELECT * FROM t5;
+  }
+} {1 one 2 two}
+do_test conflict-12.3 {
+  catchsql {
+    UPDATE t5 SET a=a+1 WHERE a=1;
+  }
+} {1 {UNIQUE constraint failed: t5.a}}
+verify_ex_errcode conflict-12.3b SQLITE_CONSTRAINT_PRIMARYKEY
+do_test conflict-12.4 {
+  execsql {
+    UPDATE OR REPLACE t5 SET a=a+1 WHERE a=1;
+    SELECT * FROM t5;
+  }
+} {2 one}
+do_test conflict-12.5 {
+  catchsql {
+    CREATE TABLE t5b(x);
+    INSERT INTO t5b(rowid, x) VALUES(1,10),(2,11);
+    UPDATE t5b SET rowid=rowid+1 WHERE x=10;
+  }
+} {1 {UNIQUE constraint failed: t5b.rowid}}
+verify_ex_errcode conflict-12.5b SQLITE_CONSTRAINT_ROWID
+
+
+# Ticket [c38baa3d969eab7946dc50ba9d9b4f0057a19437]
+# REPLACE works like ABORT on a CHECK constraint.
+#
+do_test conflict-13.1 {
+  execsql {
+    CREATE TABLE t13(a CHECK(a!=2));
+    BEGIN;
+    REPLACE INTO t13 VALUES(1);
+  }
+  catchsql {
+    REPLACE INTO t13 VALUES(2);
+  }
+} {1 {CHECK constraint failed: a!=2}}
+verify_ex_errcode conflict-13.1b SQLITE_CONSTRAINT_CHECK
+do_test conflict-13.2 {
+  execsql {
+    REPLACE INTO t13 VALUES(3);
+    COMMIT;
+    SELECT * FROM t13;
+  }
+} {1 3}
+
+
+# Ticket https://www.sqlite.org/src/tktview/e6f1f2e34dceeb1ed61531c7e9
+# Verify that it is not possible to sneak a NULL value into a NOT NULL
+# column using REPLACE.
+#
+do_catchsql_test conflict-14.1 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(x NOT NULL DEFAULT NULL);
+  REPLACE INTO t1 DEFAULT VALUES;
+} {1 {NOT NULL constraint failed: t1.x}}
+
+# 2019-12-15 gramfuzz1 find
+# Three UNIQUE constraints, where the third would is a duplicate except
+# that it adds ON CONFLICT REPLACE.  Verify that the indexes end up
+# sorted in the correct order (REPLACE last) so that constraint processing
+# works correctly.
+#
+reset_db
+do_execsql_test conflict-15.10 {
+  CREATE TABLE t1(
+    x PRIMARY KEY,
+    UNIQUE(x,x),
+    UNIQUE(x,x) ON CONFLICT REPLACE
+  );
+  INSERT INTO t1(x) VALUES(1);
+  SELECT * FROM t1;
+} {1}
+do_catchsql_test conflict-15.20 {
+  INSERT INTO t1(x) VALUES(1);
+} {1 {UNIQUE constraint failed: t1.x}}
+do_execsql_test conflict-15.30 {
+  SELECT * FROM t1;
+} {1}
+
+# 2023-01-16 https://sqlite.org/forum/forumpost/aa580a5af38a58e3
+# The parser accepts an ON CONFLICT clause on table CHECK constraints
+# but not on column CHECK constraints.  But the CHECK constraint is
+# ignored.  It has been like this since version 3.0.0.
+#
+# There might be applications and/or databases in the wild that have
+# table CHECK constraints with ON CONFLICT clauses.  In as much as this
+# is a harmless quirk, we continue to support it in order to avoid
+# breaking those legacy applications and databases.
+#
+reset_db
+do_catchsql_test conflict-16.1 {
+  -- ON CONFLICT clauses are not allowed on column CHECK constraints
+  CREATE TABLE t1(a INT CHECK( a!=5 ) ON CONFLICT ignore);
+} {1 {near "ON": syntax error}}
+do_execsql_test conflict-16.2 {
+  -- ON CONFLICT is allowed on table CHECK constraints
+  CREATE TABLE t1(a INT, CHECK( a!=5 ) ON CONFLICT ignore);
+} {}
+do_catchsql_test conflict-16.3 {
+  -- The ON CONFLICT clause is in-op
+  INSERT INTO t1(a) VALUES(4),(5),(6);
+} {1 {CHECK constraint failed: a!=5}}
+do_execsql_test conflict-16.4 {
+  SELECT a FROM t1 ORDER BY a;
+} {}
+do_execsql_test conflict-16.5 {
+  INSERT OR IGNORE INTO t1(a) VALUES(4),(5),(6);
+  SELECT a FROM t1 ORDER BY a;
+} {4 6}
+
+finish_test
diff --git a/test/conflict2.test b/test/conflict2.test
new file mode 100644
index 0000000000000000000000000000000000000000..96289d38cad3a4a834111fe3da1733dc7d089e06
--- /dev/null
+++ b/test/conflict2.test
@@ -0,0 +1,858 @@
+# 2013-11-04
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests for the conflict resolution extension
+# in WITHOUT ROWID tables
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !conflict {
+  finish_test
+  return
+}
+
+# Create tables for the first group of tests.
+#
+do_test conflict2-1.0 {
+  execsql {
+    CREATE TABLE t1(a, b, c, PRIMARY KEY(a,b)) WITHOUT rowid;
+    CREATE TABLE t2(x);
+    SELECT c FROM t1 ORDER BY c;
+  }
+} {}
+
+# Six columns of configuration data as follows:
+#
+#   i      The reference number of the test
+#   cmd    An INSERT or REPLACE command to execute against table t1
+#   t0     True if there is an error from $cmd
+#   t1     Content of "c" column of t1 assuming no error in $cmd
+#   t2     Content of "x" column of t2
+#   t3     Number of temporary files created by this test
+#
+foreach {i cmd t0 t1 t2 t3} {
+  1 INSERT                  1 {}  1  0
+  2 {INSERT OR IGNORE}      0 3   1  0
+  3 {INSERT OR REPLACE}     0 4   1  0
+  4 REPLACE                 0 4   1  0
+  5 {INSERT OR FAIL}        1 {}  1  0
+  6 {INSERT OR ABORT}       1 {}  1  0
+  7 {INSERT OR ROLLBACK}    1 {}  {} 0
+} {
+  do_test conflict2-1.$i {
+    set ::sqlite_opentemp_count 0
+    set r0 [catch {execsql [subst {
+      DELETE FROM t1;
+      DELETE FROM t2;
+      INSERT INTO t1 VALUES(1,2,3);
+      BEGIN;
+      INSERT INTO t2 VALUES(1); 
+      $cmd INTO t1 VALUES(1,2,4);
+    }]} r1]
+    catch {execsql {COMMIT}}
+    if {$r0} {set r1 {}} {set r1 [execsql {SELECT c FROM t1}]}
+    set r2 [execsql {SELECT x FROM t2}]
+    set r3 $::sqlite_opentemp_count
+    list $r0 $r1 $r2 $r3
+  } [list $t0 $t1 $t2 $t3]
+}
+
+# Create tables for the first group of tests.
+#
+do_test conflict2-2.0 {
+  execsql {
+    DROP TABLE t1;
+    DROP TABLE t2;
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c, UNIQUE(a,b)) WITHOUT rowid;
+    CREATE TABLE t2(x);
+    SELECT c FROM t1 ORDER BY c;
+  }
+} {}
+
+# Six columns of configuration data as follows:
+#
+#   i      The reference number of the test
+#   cmd    An INSERT or REPLACE command to execute against table t1
+#   t0     True if there is an error from $cmd
+#   t1     Content of "c" column of t1 assuming no error in $cmd
+#   t2     Content of "x" column of t2
+#
+foreach {i cmd t0 t1 t2} {
+  1 INSERT                  1 {}  1
+  2 {INSERT OR IGNORE}      0 3   1
+  3 {INSERT OR REPLACE}     0 4   1
+  4 REPLACE                 0 4   1
+  5 {INSERT OR FAIL}        1 {}  1
+  6 {INSERT OR ABORT}       1 {}  1
+  7 {INSERT OR ROLLBACK}    1 {}  {}
+} {
+  do_test conflict2-2.$i {
+    set r0 [catch {execsql [subst {
+      DELETE FROM t1;
+      DELETE FROM t2;
+      INSERT INTO t1 VALUES(1,2,3);
+      BEGIN;
+      INSERT INTO t2 VALUES(1); 
+      $cmd INTO t1 VALUES(1,2,4);
+    }]} r1]
+    catch {execsql {COMMIT}}
+    if {$r0} {set r1 {}} {set r1 [execsql {SELECT c FROM t1}]}
+    set r2 [execsql {SELECT x FROM t2}]
+    list $r0 $r1 $r2
+  } [list $t0 $t1 $t2]
+}
+
+# Create tables for the first group of tests.
+#
+do_test conflict2-3.0 {
+  execsql {
+    DROP TABLE t1;
+    DROP TABLE t2;
+    CREATE TABLE t1(a, b, c INTEGER, PRIMARY KEY(c), UNIQUE(a,b)) WITHOUT rowid;
+    CREATE TABLE t2(x);
+    SELECT c FROM t1 ORDER BY c;
+  }
+} {}
+
+# Six columns of configuration data as follows:
+#
+#   i      The reference number of the test
+#   cmd    An INSERT or REPLACE command to execute against table t1
+#   t0     True if there is an error from $cmd
+#   t1     Content of "c" column of t1 assuming no error in $cmd
+#   t2     Content of "x" column of t2
+#
+foreach {i cmd t0 t1 t2} {
+  1 INSERT                  1 {}  1
+  2 {INSERT OR IGNORE}      0 3   1
+  3 {INSERT OR REPLACE}     0 4   1
+  4 REPLACE                 0 4   1
+  5 {INSERT OR FAIL}        1 {}  1
+  6 {INSERT OR ABORT}       1 {}  1
+  7 {INSERT OR ROLLBACK}    1 {}  {}
+} {
+  do_test conflict2-3.$i {
+    set r0 [catch {execsql [subst {
+      DELETE FROM t1;
+      DELETE FROM t2;
+      INSERT INTO t1 VALUES(1,2,3);
+      BEGIN;
+      INSERT INTO t2 VALUES(1); 
+      $cmd INTO t1 VALUES(1,2,4);
+    }]} r1]
+    catch {execsql {COMMIT}}
+    if {$r0} {set r1 {}} {set r1 [execsql {SELECT c FROM t1}]}
+    set r2 [execsql {SELECT x FROM t2}]
+    list $r0 $r1 $r2
+  } [list $t0 $t1 $t2]
+}
+
+do_test conflict2-4.0 {
+  execsql {
+    DROP TABLE t2;
+    CREATE TABLE t2(x);
+    SELECT x FROM t2;
+  }
+} {}
+
+# Six columns of configuration data as follows:
+#
+#   i      The reference number of the test
+#   conf1  The conflict resolution algorithm on the UNIQUE constraint
+#   cmd    An INSERT or REPLACE command to execute against table t1
+#   t0     True if there is an error from $cmd
+#   t1     Content of "c" column of t1 assuming no error in $cmd
+#   t2     Content of "x" column of t2
+#
+foreach {i conf1 cmd t0 t1 t2} {
+  1 {}       INSERT                  1 {}  1
+  2 REPLACE  INSERT                  0 4   1
+  3 IGNORE   INSERT                  0 3   1
+  4 FAIL     INSERT                  1 {}  1
+  5 ABORT    INSERT                  1 {}  1
+  6 ROLLBACK INSERT                  1 {}  {}
+  7 REPLACE  {INSERT OR IGNORE}      0 3   1
+  8 IGNORE   {INSERT OR REPLACE}     0 4   1
+  9 FAIL     {INSERT OR IGNORE}      0 3   1
+ 10 ABORT    {INSERT OR REPLACE}     0 4   1
+ 11 ROLLBACK {INSERT OR IGNORE }     0 3   1
+} {
+  do_test conflict2-4.$i {
+    if {$conf1!=""} {set conf1 "ON CONFLICT $conf1"}
+    set r0 [catch {execsql [subst {
+      DROP TABLE t1;
+      CREATE TABLE t1(a,b,c,PRIMARY KEY(a,b) $conf1) WITHOUT rowid;
+      DELETE FROM t2;
+      INSERT INTO t1 VALUES(1,2,3);
+      BEGIN;
+      INSERT INTO t2 VALUES(1); 
+      $cmd INTO t1 VALUES(1,2,4);
+    }]} r1]
+    catch {execsql {COMMIT}}
+    if {$r0} {set r1 {}} {set r1 [execsql {SELECT c FROM t1}]}
+    set r2 [execsql {SELECT x FROM t2}]
+    list $r0 $r1 $r2
+  } [list $t0 $t1 $t2]
+}
+
+do_test conflict2-5.0 {
+  execsql {
+    DROP TABLE t2;
+    CREATE TABLE t2(x);
+    SELECT x FROM t2;
+  }
+} {}
+
+# Six columns of configuration data as follows:
+#
+#   i      The reference number of the test
+#   conf1  The conflict resolution algorithm on the NOT NULL constraint
+#   cmd    An INSERT or REPLACE command to execute against table t1
+#   t0     True if there is an error from $cmd
+#   t1     Content of "c" column of t1 assuming no error in $cmd
+#   t2     Content of "x" column of t2
+#
+foreach {i conf1 cmd t0 t1 t2} {
+  1 {}       INSERT                  1 {}  1
+  2 REPLACE  INSERT                  0 5   1
+  3 IGNORE   INSERT                  0 {}  1
+  4 FAIL     INSERT                  1 {}  1
+  5 ABORT    INSERT                  1 {}  1
+  6 ROLLBACK INSERT                  1 {}  {}
+  7 REPLACE  {INSERT OR IGNORE}      0 {}  1
+  8 IGNORE   {INSERT OR REPLACE}     0 5   1
+  9 FAIL     {INSERT OR IGNORE}      0 {}  1
+ 10 ABORT    {INSERT OR REPLACE}     0 5   1
+ 11 ROLLBACK {INSERT OR IGNORE}      0 {}  1
+ 12 {}       {INSERT OR IGNORE}      0 {}  1
+ 13 {}       {INSERT OR REPLACE}     0 5   1
+ 14 {}       {INSERT OR FAIL}        1 {}  1
+ 15 {}       {INSERT OR ABORT}       1 {}  1
+ 16 {}       {INSERT OR ROLLBACK}    1 {}  {}
+} {
+  if {$t0} {set t1 {NOT NULL constraint failed: t1.c}}
+  do_test conflict2-5.$i {
+    if {$conf1!=""} {set conf1 "ON CONFLICT $conf1"}
+    set r0 [catch {execsql [subst {
+      DROP TABLE t1;
+      CREATE TABLE t1(a,b,c NOT NULL $conf1 DEFAULT 5);
+      DELETE FROM t2;
+      BEGIN;
+      INSERT INTO t2 VALUES(1); 
+      $cmd INTO t1 VALUES(1,2,NULL);
+    }]} r1]
+    catch {execsql {COMMIT}}
+    if {!$r0} {set r1 [execsql {SELECT c FROM t1}]}
+    set r2 [execsql {SELECT x FROM t2}]
+    list $r0 $r1 $r2
+  } [list $t0 $t1 $t2]
+}
+
+do_test conflict2-6.0 {
+  execsql {
+    DROP TABLE t2;
+    CREATE TABLE t2(a,b,c);
+    INSERT INTO t2 VALUES(1,2,1);
+    INSERT INTO t2 VALUES(2,3,2);
+    INSERT INTO t2 VALUES(3,4,1);
+    INSERT INTO t2 VALUES(4,5,4);
+    SELECT c FROM t2 ORDER BY b;
+    CREATE TABLE t3(x);
+    INSERT INTO t3 VALUES(1);
+  }
+} {1 2 1 4}
+
+# Six columns of configuration data as follows:
+#
+#   i      The reference number of the test
+#   conf1  The conflict resolution algorithm on the UNIQUE constraint
+#   cmd    An UPDATE command to execute against table t1
+#   t0     True if there is an error from $cmd
+#   t1     Content of "b" column of t1 assuming no error in $cmd
+#   t2     Content of "x" column of t3
+#   t3     Number of temporary files for tables
+#   t4     Number of temporary files for statement journals
+#
+# Update: Since temporary table files are now opened lazily, and none
+# of the following tests use large quantities of data, t3 is always 0.
+#
+# Update (2016-03-04): Subjournals now only open when their size
+# exceeds 64KB.
+#
+foreach {i conf1 cmd t0 t1 t2 t3 t4} {
+  1 {}       UPDATE                  1 {6 7 8 9}  1 0 0
+  2 REPLACE  UPDATE                  0 {7 6 9}    1 0 0
+  3 IGNORE   UPDATE                  0 {6 7 3 9}  1 0 0
+  4 FAIL     UPDATE                  1 {6 7 3 4}  1 0 0
+  5 ABORT    UPDATE                  1 {1 2 3 4}  1 0 0
+  6 ROLLBACK UPDATE                  1 {1 2 3 4}  0 0 0
+  7 REPLACE  {UPDATE OR IGNORE}      0 {6 7 3 9}  1 0 0
+  8 IGNORE   {UPDATE OR REPLACE}     0 {7 6 9}    1 0 0
+  9 FAIL     {UPDATE OR IGNORE}      0 {6 7 3 9}  1 0 0
+ 10 ABORT    {UPDATE OR REPLACE}     0 {7 6 9}    1 0 0
+ 11 ROLLBACK {UPDATE OR IGNORE}      0 {6 7 3 9}  1 0 0
+ 12 {}       {UPDATE OR IGNORE}      0 {6 7 3 9}  1 0 0
+ 13 {}       {UPDATE OR REPLACE}     0 {7 6 9}    1 0 0
+ 14 {}       {UPDATE OR FAIL}        1 {6 7 3 4}  1 0 0
+ 15 {}       {UPDATE OR ABORT}       1 {1 2 3 4}  1 0 0
+ 16 {}       {UPDATE OR ROLLBACK}    1 {1 2 3 4}  0 0 0
+} {
+
+  # When using in-memory journals, no temporary files are required for
+  # statement journals.
+  if {[permutation] == "inmemory_journal"} { set t4 0 }
+
+  if {$t0} {set t1 {UNIQUE constraint failed: t1.a}}
+  if {[info exists TEMP_STORE] && $TEMP_STORE==3} {
+    set t3 0
+  } else {
+    set t3 [expr {$t3+$t4}]
+  }
+  do_test conflict2-6.$i {
+    db close
+    sqlite3 db test.db 
+    if {$conf1!=""} {set conf1 "ON CONFLICT $conf1"}
+    execsql {pragma temp_store=file}
+    set ::sqlite_opentemp_count 0
+    set r0 [catch {execsql [subst {
+      DROP TABLE t1;
+      CREATE TABLE t1(a,b,c, PRIMARY KEY(a) $conf1) WITHOUT rowid;
+      INSERT INTO t1 SELECT * FROM t2;
+      UPDATE t3 SET x=0;
+      BEGIN;
+      $cmd t3 SET x=1;
+      $cmd t1 SET b=b*2;
+      $cmd t1 SET a=c+5;
+    }]} r1]
+    catch {execsql {COMMIT}}
+    if {!$r0} {set r1 [execsql {SELECT a FROM t1 ORDER BY b}]}
+    set r2 [execsql {SELECT x FROM t3}]
+    list $r0 $r1 $r2 $::sqlite_opentemp_count
+  } [list $t0 $t1 $t2 $t3]
+}
+
+# Test to make sure a lot of IGNOREs don't cause a stack overflow
+#
+do_test conflict2-7.1 {
+  execsql {
+    DROP TABLE t1;
+    DROP TABLE t2;
+    DROP TABLE t3;
+    CREATE TABLE t1(a PRIMARY KEY, b) without rowid;
+  }
+  for {set i 1} {$i<=50} {incr i} {
+    execsql "INSERT into t1 values($i,[expr {$i+1}]);"
+  }
+  execsql {
+    SELECT count(*), min(a), max(b) FROM t1;
+  }
+} {50 1 51}
+do_test conflict2-7.2 {
+  execsql {
+    PRAGMA count_changes=on;
+    UPDATE OR IGNORE t1 SET a=1000;
+  }
+} {1}
+do_test conflict2-7.2.1 {
+  db changes
+} {1}
+do_test conflict2-7.3 {
+  execsql {
+    SELECT b FROM t1 WHERE a=1000;
+  }
+} {2}
+do_test conflict2-7.4 {
+  execsql {
+    SELECT count(*) FROM t1;
+  }
+} {50}
+do_test conflict2-7.5 {
+  execsql {
+    PRAGMA count_changes=on;
+    UPDATE OR REPLACE t1 SET a=1001;
+  }
+} {50}
+do_test conflict2-7.5.1 {
+  db changes
+} {50}
+do_test conflict2-7.7 {
+  execsql {
+    SELECT count(*) FROM t1;
+  }
+} {1}
+
+# Update for version 3: A SELECT statement no longer resets the change
+# counter (Test result changes from 0 to 50).
+do_test conflict2-7.7.1 {
+  db changes
+} {50}
+
+# Make sure the row count is right for rows that are ignored on
+# an insert.
+#
+do_test conflict2-8.1 {
+  execsql {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES(1,2);
+  }
+  execsql {
+    INSERT OR IGNORE INTO t1 VALUES(2,3);
+  }
+} {1}
+do_test conflict2-8.1.1 {
+  db changes
+} {1}
+do_test conflict2-8.2 {
+  execsql {
+    INSERT OR IGNORE INTO t1 VALUES(2,4);
+  }
+} {0}
+do_test conflict2-8.2.1 {
+  db changes
+} {0}
+do_test conflict2-8.3 {
+  execsql {
+    INSERT OR REPLACE INTO t1 VALUES(2,4);
+  }
+} {1}
+do_test conflict2-8.3.1 {
+  db changes
+} {1}
+do_test conflict2-8.4 {
+  execsql {
+    INSERT OR IGNORE INTO t1 SELECT * FROM t1;
+  }
+} {0}
+do_test conflict2-8.4.1 {
+  db changes
+} {0}
+do_test conflict2-8.5 {
+  execsql {
+    INSERT OR IGNORE INTO t1 SELECT a+2,b+2 FROM t1;
+  }
+} {2}
+do_test conflict2-8.5.1 {
+  db changes
+} {2}
+do_test conflict2-8.6 {
+  execsql {
+    INSERT OR IGNORE INTO t1 SELECT a+3,b+3 FROM t1;
+  }
+} {3}
+do_test conflict2-8.6.1 {
+  db changes
+} {3}
+
+integrity_check conflict2-8.99
+
+do_test conflict2-9.1 {
+  execsql {
+    PRAGMA count_changes=0;
+    CREATE TABLE t2(
+      a INTEGER PRIMARY KEY ON CONFLICT IGNORE,
+      b INTEGER UNIQUE ON CONFLICT FAIL,
+      c INTEGER UNIQUE ON CONFLICT REPLACE,
+      d INTEGER UNIQUE ON CONFLICT ABORT,
+      e INTEGER UNIQUE ON CONFLICT ROLLBACK
+    ) WITHOUT rowid;
+    CREATE TABLE t3(x);
+    INSERT INTO t3 VALUES(1);
+    SELECT * FROM t3;
+  }
+} {1}
+do_test conflict2-9.2 {
+  catchsql {
+    INSERT INTO t2 VALUES(1,1,1,1,1);
+    INSERT INTO t2 VALUES(2,2,2,2,2);
+    SELECT * FROM t2;
+  }
+} {0 {1 1 1 1 1 2 2 2 2 2}}
+do_test conflict2-9.3 {
+  catchsql {
+    INSERT INTO t2 VALUES(1,3,3,3,3);
+    SELECT * FROM t2;
+  }
+} {0 {1 1 1 1 1 2 2 2 2 2}}
+do_test conflict2-9.4 {
+  catchsql {
+    UPDATE t2 SET a=a+1 WHERE a=1;
+    SELECT * FROM t2;
+  }
+} {0 {1 1 1 1 1 2 2 2 2 2}}
+do_test conflict2-9.5 {
+  catchsql {
+    INSERT INTO t2 VALUES(3,1,3,3,3);
+  }
+} {1 {UNIQUE constraint failed: t2.b}}
+do_test conflict2-9.5b {
+  db eval {SELECT * FROM t2;}
+} {1 1 1 1 1 2 2 2 2 2}
+do_test conflict2-9.6 {
+  catchsql {
+    UPDATE t2 SET b=b+1 WHERE b=1;
+    SELECT * FROM t2;
+  }
+} {1 {UNIQUE constraint failed: t2.b}}
+do_test conflict2-9.6b {
+  db eval {SELECT * FROM t2;}
+} {1 1 1 1 1 2 2 2 2 2}
+do_test conflict2-9.7 {
+  catchsql {
+    BEGIN;
+    UPDATE t3 SET x=x+1;
+    INSERT INTO t2 VALUES(3,1,3,3,3);
+    SELECT * FROM t2;
+  }
+} {1 {UNIQUE constraint failed: t2.b}}
+do_test conflict2-9.8 {
+  execsql {COMMIT}
+  execsql {SELECT * FROM t3}
+} {2}
+do_test conflict2-9.9 {
+  catchsql {
+    BEGIN;
+    UPDATE t3 SET x=x+1;
+    UPDATE t2 SET b=b+1 WHERE b=1;
+    SELECT * FROM t2;
+  }
+} {1 {UNIQUE constraint failed: t2.b}}
+do_test conflict2-9.10 {
+  execsql {COMMIT}
+  execsql {SELECT * FROM t3}
+} {3}
+do_test conflict2-9.11 {
+  catchsql {
+    INSERT INTO t2 VALUES(3,3,3,1,3);
+    SELECT * FROM t2;
+  }
+} {1 {UNIQUE constraint failed: t2.d}}
+do_test conflict2-9.12 {
+  catchsql {
+    UPDATE t2 SET d=d+1 WHERE d=1;
+    SELECT * FROM t2;
+  }
+} {1 {UNIQUE constraint failed: t2.d}}
+do_test conflict2-9.13 {
+  catchsql {
+    BEGIN;
+    UPDATE t3 SET x=x+1;
+    INSERT INTO t2 VALUES(3,3,3,1,3);
+    SELECT * FROM t2;
+  }
+} {1 {UNIQUE constraint failed: t2.d}}
+do_test conflict2-9.14 {
+  execsql {COMMIT}
+  execsql {SELECT * FROM t3}
+} {4}
+do_test conflict2-9.15 {
+  catchsql {
+    BEGIN;
+    UPDATE t3 SET x=x+1;
+    UPDATE t2 SET d=d+1 WHERE d=1;
+    SELECT * FROM t2;
+  }
+} {1 {UNIQUE constraint failed: t2.d}}
+do_test conflict2-9.16 {
+  execsql {COMMIT}
+  execsql {SELECT * FROM t3}
+} {5}
+do_test conflict2-9.17 {
+  catchsql {
+    INSERT INTO t2 VALUES(3,3,3,3,1);
+    SELECT * FROM t2;
+  }
+} {1 {UNIQUE constraint failed: t2.e}}
+do_test conflict2-9.18 {
+  catchsql {
+    UPDATE t2 SET e=e+1 WHERE e=1;
+    SELECT * FROM t2;
+  }
+} {1 {UNIQUE constraint failed: t2.e}}
+do_test conflict2-9.19 {
+  catchsql {
+    BEGIN;
+    UPDATE t3 SET x=x+1;
+    INSERT INTO t2 VALUES(3,3,3,3,1);
+    SELECT * FROM t2;
+  }
+} {1 {UNIQUE constraint failed: t2.e}}
+verify_ex_errcode conflict2-9.21b SQLITE_CONSTRAINT_UNIQUE
+do_test conflict2-9.20 {
+  catch {execsql {COMMIT}}
+  execsql {SELECT * FROM t3}
+} {5}
+do_test conflict2-9.21 {
+  catchsql {
+    BEGIN;
+    UPDATE t3 SET x=x+1;
+    UPDATE t2 SET e=e+1 WHERE e=1;
+    SELECT * FROM t2;
+  }
+} {1 {UNIQUE constraint failed: t2.e}}
+verify_ex_errcode conflict2-9.21b SQLITE_CONSTRAINT_UNIQUE
+do_test conflict2-9.22 {
+  catch {execsql {COMMIT}}
+  execsql {SELECT * FROM t3}
+} {5}
+do_test conflict2-9.23 {
+  catchsql {
+    INSERT INTO t2 VALUES(3,3,1,3,3);
+    SELECT * FROM t2;
+  }
+} {0 {2 2 2 2 2 3 3 1 3 3}}
+do_test conflict2-9.24 {
+  catchsql {
+    UPDATE t2 SET c=c-1 WHERE c=2;
+    SELECT * FROM t2;
+  }
+} {0 {2 2 1 2 2}}
+do_test conflict2-9.25 {
+  catchsql {
+    BEGIN;
+    UPDATE t3 SET x=x+1;
+    INSERT INTO t2 VALUES(3,3,1,3,3);
+    SELECT * FROM t2;
+  }
+} {0 {3 3 1 3 3}}
+do_test conflict2-9.26 {
+  catch {execsql {COMMIT}}
+  execsql {SELECT * FROM t3}
+} {6}
+
+do_test conflict2-10.1 {
+  catchsql {
+    DELETE FROM t1;
+    BEGIN;
+    INSERT OR ROLLBACK INTO t1 VALUES(1,2);
+    INSERT OR ROLLBACK INTO t1 VALUES(1,3);
+    COMMIT;
+  }
+  execsql {SELECT * FROM t1}
+} {}
+do_test conflict2-10.2 {
+  catchsql {
+    CREATE TABLE t4(x);
+    CREATE UNIQUE INDEX t4x ON t4(x);
+    BEGIN;
+    INSERT OR ROLLBACK INTO t4 VALUES(1);
+    INSERT OR ROLLBACK INTO t4 VALUES(1);
+    COMMIT;
+  }
+  execsql {SELECT * FROM t4}
+} {}
+
+# Ticket #1171.  Make sure statement rollbacks do not
+# damage the database.
+#
+do_test conflict2-11.1 {
+  execsql {
+    -- Create a database object (pages 2, 3 of the file)
+    BEGIN;
+      CREATE TABLE abc(a PRIMARY KEY, b, c) WITHOUT rowid;
+      INSERT INTO abc VALUES(1, 2, 3);
+      INSERT INTO abc VALUES(4, 5, 6);
+      INSERT INTO abc VALUES(7, 8, 9);
+    COMMIT;
+  }
+
+  
+  # Set a small cache size so that changes will spill into
+  # the database file.  
+  execsql {
+    PRAGMA cache_size = 10;
+  }
+  
+  # Make lots of changes.  Because of the small cache, some
+  # (most?) of these changes will spill into the disk file.
+  # In other words, some of the changes will not be held in
+  # cache.
+  #
+  execsql {
+    BEGIN;
+      -- Make sure the pager is in EXCLUSIVE state.
+      CREATE TABLE def(d, e, f);
+      INSERT INTO def VALUES
+          ('xxxxxxxxxxxxxxx', 'yyyyyyyyyyyyyyyy', 'zzzzzzzzzzzzzzzz');
+      INSERT INTO def SELECT * FROM def;
+      INSERT INTO def SELECT * FROM def;
+      INSERT INTO def SELECT * FROM def;
+      INSERT INTO def SELECT * FROM def;
+      INSERT INTO def SELECT * FROM def;
+      INSERT INTO def SELECT * FROM def;
+      INSERT INTO def SELECT * FROM def;
+      DELETE FROM abc WHERE a = 4;
+  }
+
+  # Execute a statement that does a statement rollback due to
+  # a constraint failure.
+  #
+  catchsql {
+    INSERT INTO abc SELECT 10, 20, 30 FROM def;
+  }
+
+  # Rollback the database.  Verify that the state of the ABC table
+  # is unchanged from the beginning of the transaction.  In other words,
+  # make sure the DELETE on table ABC that occurred within the transaction
+  # had no effect.
+  #
+  execsql {
+    ROLLBACK;
+    SELECT * FROM abc;
+  }
+} {1 2 3 4 5 6 7 8 9}
+integrity_check conflict2-11.2
+
+# Repeat test conflict2-11.1 but this time commit.
+#
+do_test conflict2-11.3 {
+  execsql {
+    BEGIN;
+      -- Make sure the pager is in EXCLUSIVE state.
+      UPDATE abc SET a=a+1;
+      CREATE TABLE def(d, e, f);
+      INSERT INTO def VALUES
+          ('xxxxxxxxxxxxxxx', 'yyyyyyyyyyyyyyyy', 'zzzzzzzzzzzzzzzz');
+      INSERT INTO def SELECT * FROM def;
+      INSERT INTO def SELECT * FROM def;
+      INSERT INTO def SELECT * FROM def;
+      INSERT INTO def SELECT * FROM def;
+      INSERT INTO def SELECT * FROM def;
+      INSERT INTO def SELECT * FROM def;
+      INSERT INTO def SELECT * FROM def;
+      DELETE FROM abc WHERE a = 4;
+  }
+  catchsql {
+    INSERT INTO abc SELECT 10, 20, 30 FROM def;
+  }
+  execsql {
+    ROLLBACK;
+    SELECT * FROM abc;
+  }
+} {1 2 3 4 5 6 7 8 9}
+# Repeat test conflict2-11.1 but this time commit.
+#
+do_test conflict2-11.5 {
+  execsql {
+    BEGIN;
+      -- Make sure the pager is in EXCLUSIVE state.
+      CREATE TABLE def(d, e, f);
+      INSERT INTO def VALUES
+          ('xxxxxxxxxxxxxxx', 'yyyyyyyyyyyyyyyy', 'zzzzzzzzzzzzzzzz');
+      INSERT INTO def SELECT * FROM def;
+      INSERT INTO def SELECT * FROM def;
+      INSERT INTO def SELECT * FROM def;
+      INSERT INTO def SELECT * FROM def;
+      INSERT INTO def SELECT * FROM def;
+      INSERT INTO def SELECT * FROM def;
+      INSERT INTO def SELECT * FROM def;
+      DELETE FROM abc WHERE a = 4;
+  }
+  catchsql {
+    INSERT INTO abc SELECT 10, 20, 30 FROM def;
+  }
+  execsql {
+    COMMIT;
+    SELECT * FROM abc;
+  }
+} {1 2 3 7 8 9}
+integrity_check conflict2-11.6
+
+# Make sure UPDATE OR REPLACE works on tables that have only
+# an INTEGER PRIMARY KEY.
+#
+do_test conflict2-12.1 {
+  execsql {
+    CREATE TABLE t5(a INTEGER PRIMARY KEY, b text) WITHOUT rowid;
+    INSERT INTO t5 VALUES(1,'one');
+    INSERT INTO t5 VALUES(2,'two');
+    SELECT * FROM t5
+  }
+} {1 one 2 two}
+do_test conflict2-12.2 {
+  execsql {
+    UPDATE OR IGNORE t5 SET a=a+1 WHERE a=1;
+    SELECT * FROM t5;
+  }
+} {1 one 2 two}
+do_test conflict2-12.3 {
+  catchsql {
+    UPDATE t5 SET a=a+1 WHERE a=1;
+  }
+} {1 {UNIQUE constraint failed: t5.a}}
+verify_ex_errcode conflict2-12.3b SQLITE_CONSTRAINT_PRIMARYKEY
+do_test conflict2-12.4 {
+  execsql {
+    UPDATE OR REPLACE t5 SET a=a+1 WHERE a=1;
+    SELECT * FROM t5;
+  }
+} {2 one}
+
+
+# Ticket [c38baa3d969eab7946dc50ba9d9b4f0057a19437]
+# REPLACE works like ABORT on a CHECK constraint.
+#
+do_test conflict2-13.1 {
+  execsql {
+    CREATE TABLE t13(a PRIMARY KEY CHECK(a!=2)) WITHOUT rowid;
+    BEGIN;
+    REPLACE INTO t13 VALUES(1);
+  }
+  catchsql {
+    REPLACE INTO t13 VALUES(2);
+  }
+} {1 {CHECK constraint failed: a!=2}}
+verify_ex_errcode conflict2-13.1b SQLITE_CONSTRAINT_CHECK
+do_test conflict2-13.2 {
+  execsql {
+    REPLACE INTO t13 VALUES(3);
+    COMMIT;
+    SELECT * FROM t13;
+  }
+} {1 3}
+
+# Test for an unreleased bug in the REPLACE conflict resolution
+# discovered on 2013-11-09.  
+#
+do_execsql_test conflict2-14.1 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(
+    x TEXT PRIMARY KEY NOT NULL, 
+    y TEXT NOT NULL,
+    z INTEGER
+  );
+  INSERT INTO t1 VALUES('alpha','beta',1);
+  CREATE UNIQUE INDEX t1xy ON t1(x,y);
+  REPLACE INTO t1(x,y,z) VALUES('alpha','gamma',1);
+  PRAGMA integrity_check;
+  SELECT x,y FROM t1 INDEXED BY t1xy;
+  SELECT x,y,z FROM t1 NOT INDEXED;
+} {ok alpha gamma alpha gamma 1}
+do_execsql_test conflict2-14.2 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(
+    x TEXT PRIMARY KEY NOT NULL, 
+    y TEXT NOT NULL,
+    z INTEGER
+  ) WITHOUT ROWID;
+  INSERT INTO t1 VALUES('alpha','beta',1);
+  CREATE UNIQUE INDEX t1xy ON t1(x,y);
+  REPLACE INTO t1(x,y,z) VALUES('alpha','gamma',1);
+  PRAGMA integrity_check;
+  SELECT x,y FROM t1 INDEXED BY t1xy;
+  SELECT x,y,z FROM t1 NOT INDEXED;
+} {ok alpha gamma alpha gamma 1}
+
+
+
+finish_test
diff --git a/test/conflict3.test b/test/conflict3.test
new file mode 100644
index 0000000000000000000000000000000000000000..8eb4c1b0f770189c5988770d7001c83d332dfffd
--- /dev/null
+++ b/test/conflict3.test
@@ -0,0 +1,437 @@
+# 2013-11-05
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests for the conflict resolution extension
+# to SQLite.
+#
+# This file focuses on making sure that combinations of REPLACE,
+# IGNORE, and FAIL conflict resolution play well together.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix conflict3
+
+ifcapable !conflict {
+  finish_test
+  return
+}
+
+do_execsql_test 1.1 {
+  CREATE TABLE t1(
+    a INTEGER PRIMARY KEY ON CONFLICT REPLACE, 
+    b UNIQUE ON CONFLICT IGNORE,
+    c UNIQUE ON CONFLICT FAIL
+  );
+  INSERT INTO t1(a,b,c) VALUES(1,2,3), (2,3,4);
+  SELECT a,b,c FROM t1 ORDER BY a;
+} {1 2 3 2 3 4}
+
+# Insert a row that conflicts on column B.  The insert should be ignored.
+#
+do_execsql_test 1.2 {
+  INSERT INTO t1(a,b,c) VALUES(3,2,5);
+  SELECT a,b,c FROM t1 ORDER BY a;
+} {1 2 3 2 3 4}
+
+# Insert two rows where the second conflicts on C.  The first row show go
+# and and then there should be a constraint error.
+#
+do_test 1.3 {
+  catchsql {INSERT INTO t1(a,b,c) VALUES(4,5,6), (5,6,4);}
+} {1 {UNIQUE constraint failed: t1.c}}
+do_execsql_test 1.4 {
+  SELECT a,b,c FROM t1 ORDER BY a;
+} {1 2 3 2 3 4 4 5 6}
+
+# Replete the tests above, but this time on a table non-INTEGER primary key.
+#
+do_execsql_test 2.1 {
+  DROP TABLE t1;
+  CREATE TABLE t1(
+    a INT PRIMARY KEY ON CONFLICT REPLACE, 
+    b UNIQUE ON CONFLICT IGNORE,
+    c UNIQUE ON CONFLICT FAIL
+  );
+  INSERT INTO t1(a,b,c) VALUES(1,2,3), (2,3,4);
+  SELECT a,b,c FROM t1 ORDER BY a;
+} {1 2 3 2 3 4}
+
+# Insert a row that conflicts on column B.  The insert should be ignored.
+#
+do_execsql_test 2.2 {
+  INSERT INTO t1(a,b,c) VALUES(3,2,5);
+  SELECT a,b,c FROM t1 ORDER BY a;
+} {1 2 3 2 3 4}
+
+# Insert two rows where the second conflicts on C.  The first row show go
+# and and then there should be a constraint error.
+#
+do_test 2.3 {
+  catchsql {INSERT INTO t1(a,b,c) VALUES(4,5,6), (5,6,4);}
+} {1 {UNIQUE constraint failed: t1.c}}
+do_execsql_test 2.4 {
+  SELECT a,b,c FROM t1 ORDER BY a;
+} {1 2 3 2 3 4 4 5 6}
+
+# Replete again on a WITHOUT ROWID table.
+#
+do_execsql_test 3.1 {
+  DROP TABLE t1;
+  CREATE TABLE t1(
+    a INT PRIMARY KEY ON CONFLICT REPLACE, 
+    b UNIQUE ON CONFLICT IGNORE,
+    c UNIQUE ON CONFLICT FAIL
+  ) WITHOUT ROWID;
+  INSERT INTO t1(a,b,c) VALUES(1,2,3), (2,3,4);
+  SELECT a,b,c FROM t1 ORDER BY a;
+} {1 2 3 2 3 4}
+
+# Insert a row that conflicts on column B.  The insert should be ignored.
+#
+do_execsql_test 3.2 {
+  INSERT INTO t1(a,b,c) VALUES(3,2,5);
+  SELECT a,b,c FROM t1 ORDER BY a;
+} {1 2 3 2 3 4}
+
+# Insert two rows where the second conflicts on C.  The first row show go
+# and and then there should be a constraint error.
+#
+do_test 3.3 {
+  catchsql {INSERT INTO t1(a,b,c) VALUES(4,5,6), (5,6,4);}
+} {1 {UNIQUE constraint failed: t1.c}}
+do_execsql_test 3.4 {
+  SELECT a,b,c FROM t1 ORDER BY a;
+} {1 2 3 2 3 4 4 5 6}
+
+# Arrange the table rows in a different order and repeat.
+#
+do_execsql_test 4.1 {
+  DROP TABLE t1;
+  CREATE TABLE t1(
+    b UNIQUE ON CONFLICT IGNORE,
+    c UNIQUE ON CONFLICT FAIL,
+    a INT PRIMARY KEY ON CONFLICT REPLACE
+  ) WITHOUT ROWID;
+  INSERT INTO t1(a,b,c) VALUES(1,2,3), (2,3,4);
+  SELECT a,b,c FROM t1 ORDER BY a;
+} {1 2 3 2 3 4}
+
+# Insert a row that conflicts on column B.  The insert should be ignored.
+#
+do_execsql_test 4.2 {
+  INSERT INTO t1(a,b,c) VALUES(3,2,5);
+  SELECT a,b,c FROM t1 ORDER BY a;
+} {1 2 3 2 3 4}
+
+# Insert two rows where the second conflicts on C.  The first row show go
+# and and then there should be a constraint error.
+#
+do_test 4.3 {
+  catchsql {INSERT INTO t1(a,b,c) VALUES(4,5,6), (5,6,4);}
+} {1 {UNIQUE constraint failed: t1.c}}
+do_execsql_test 4.4 {
+  SELECT a,b,c FROM t1 ORDER BY a;
+} {1 2 3 2 3 4 4 5 6}
+
+# Arrange the table rows in a different order and repeat.
+#
+do_execsql_test 5.1 {
+  DROP TABLE t1;
+  CREATE TABLE t1(
+    b UNIQUE ON CONFLICT IGNORE,
+    a INT PRIMARY KEY ON CONFLICT REPLACE,
+    c UNIQUE ON CONFLICT FAIL
+  );
+  INSERT INTO t1(a,b,c) VALUES(1,2,3), (2,3,4);
+  SELECT a,b,c FROM t1 ORDER BY a;
+} {1 2 3 2 3 4}
+
+# Insert a row that conflicts on column B.  The insert should be ignored.
+#
+do_execsql_test 5.2 {
+  INSERT INTO t1(a,b,c) VALUES(3,2,5);
+  SELECT a,b,c FROM t1 ORDER BY a;
+} {1 2 3 2 3 4}
+
+# Insert two rows where the second conflicts on C.  The first row show go
+# and and then there should be a constraint error.
+#
+do_test 5.3 {
+  catchsql {INSERT INTO t1(a,b,c) VALUES(4,5,6), (5,6,4);}
+} {1 {UNIQUE constraint failed: t1.c}}
+do_execsql_test 5.4 {
+  SELECT a,b,c FROM t1 ORDER BY a;
+} {1 2 3 2 3 4 4 5 6}
+
+# Arrange the table rows in a different order and repeat.
+#
+do_execsql_test 6.1 {
+  DROP TABLE t1;
+  CREATE TABLE t1(
+    c UNIQUE ON CONFLICT FAIL,
+    a INT PRIMARY KEY ON CONFLICT REPLACE,
+    b UNIQUE ON CONFLICT IGNORE
+  );
+  INSERT INTO t1(a,b,c) VALUES(1,2,3), (2,3,4);
+  SELECT a,b,c FROM t1 ORDER BY a;
+} {1 2 3 2 3 4}
+
+# Insert a row that conflicts on column B.  The insert should be ignored.
+#
+do_execsql_test 6.2 {
+  INSERT INTO t1(a,b,c) VALUES(3,2,5);
+  SELECT a,b,c FROM t1 ORDER BY a;
+} {1 2 3 2 3 4}
+
+# Insert two rows where the second conflicts on C.  The first row show go
+# and and then there should be a constraint error.
+#
+do_test 6.3 {
+  catchsql {INSERT INTO t1(a,b,c) VALUES(4,5,6), (5,6,4);}
+} {1 {UNIQUE constraint failed: t1.c}}
+do_execsql_test 6.4 {
+  SELECT a,b,c FROM t1 ORDER BY a;
+} {1 2 3 2 3 4 4 5 6}
+
+# Change which column is the PRIMARY KEY
+#
+do_execsql_test 7.1 {
+  DROP TABLE t1;
+  CREATE TABLE t1(
+    a UNIQUE ON CONFLICT REPLACE, 
+    b INTEGER PRIMARY KEY ON CONFLICT IGNORE,
+    c UNIQUE ON CONFLICT FAIL
+  );
+  INSERT INTO t1(a,b,c) VALUES(1,2,3), (2,3,4);
+  SELECT a,b,c FROM t1 ORDER BY a;
+} {1 2 3 2 3 4}
+
+# Insert a row that conflicts on column B.  The insert should be ignored.
+#
+do_execsql_test 7.2 {
+  INSERT INTO t1(a,b,c) VALUES(3,2,5);
+  SELECT a,b,c FROM t1 ORDER BY a;
+} {1 2 3 2 3 4}
+
+# Insert two rows where the second conflicts on C.  The first row show go
+# and and then there should be a constraint error.
+#
+do_test 7.3 {
+  catchsql {INSERT INTO t1(a,b,c) VALUES(4,5,6), (5,6,4);}
+} {1 {UNIQUE constraint failed: t1.c}}
+do_execsql_test 7.4 {
+  SELECT a,b,c FROM t1 ORDER BY a;
+} {1 2 3 2 3 4 4 5 6}
+
+# Change which column is the PRIMARY KEY
+#
+do_execsql_test 8.1 {
+  DROP TABLE t1;
+  CREATE TABLE t1(
+    a UNIQUE ON CONFLICT REPLACE, 
+    b INT PRIMARY KEY ON CONFLICT IGNORE,
+    c UNIQUE ON CONFLICT FAIL
+  );
+  INSERT INTO t1(a,b,c) VALUES(1,2,3), (2,3,4);
+  SELECT a,b,c FROM t1 ORDER BY a;
+} {1 2 3 2 3 4}
+
+# Insert a row that conflicts on column B.  The insert should be ignored.
+#
+do_execsql_test 8.2 {
+  INSERT INTO t1(a,b,c) VALUES(3,2,5);
+  SELECT a,b,c FROM t1 ORDER BY a;
+} {1 2 3 2 3 4}
+
+# Insert two rows where the second conflicts on C.  The first row show go
+# and and then there should be a constraint error.
+#
+do_test 8.3 {
+  catchsql {INSERT INTO t1(a,b,c) VALUES(4,5,6), (5,6,4);}
+} {1 {UNIQUE constraint failed: t1.c}}
+do_execsql_test 8.4 {
+  SELECT a,b,c FROM t1 ORDER BY a;
+} {1 2 3 2 3 4 4 5 6}
+
+# Change which column is the PRIMARY KEY
+#
+do_execsql_test 9.1 {
+  DROP TABLE t1;
+  CREATE TABLE t1(
+    a UNIQUE ON CONFLICT REPLACE, 
+    b INT PRIMARY KEY ON CONFLICT IGNORE,
+    c UNIQUE ON CONFLICT FAIL
+  ) WITHOUT ROWID;
+  INSERT INTO t1(a,b,c) VALUES(1,2,3), (2,3,4);
+  SELECT a,b,c FROM t1 ORDER BY a;
+} {1 2 3 2 3 4}
+
+# Insert a row that conflicts on column B.  The insert should be ignored.
+#
+do_execsql_test 9.2 {
+  INSERT INTO t1(a,b,c) VALUES(3,2,5);
+  SELECT a,b,c FROM t1 ORDER BY a;
+} {1 2 3 2 3 4}
+
+# Insert two rows where the second conflicts on C.  The first row show go
+# and and then there should be a constraint error.
+#
+do_test 9.3 {
+  catchsql {INSERT INTO t1(a,b,c) VALUES(4,5,6), (5,6,4);}
+} {1 {UNIQUE constraint failed: t1.c}}
+do_execsql_test 9.4 {
+  SELECT a,b,c FROM t1 ORDER BY a;
+} {1 2 3 2 3 4 4 5 6}
+
+# Change which column is the PRIMARY KEY
+#
+do_execsql_test 10.1 {
+  DROP TABLE t1;
+  CREATE TABLE t1(
+    a UNIQUE ON CONFLICT REPLACE, 
+    b UNIQUE ON CONFLICT IGNORE,
+    c INTEGER PRIMARY KEY ON CONFLICT FAIL
+  );
+  INSERT INTO t1(a,b,c) VALUES(1,2,3), (2,3,4);
+  SELECT a,b,c FROM t1 ORDER BY a;
+} {1 2 3 2 3 4}
+
+# Insert a row that conflicts on column B.  The insert should be ignored.
+#
+do_execsql_test 10.2 {
+  INSERT INTO t1(a,b,c) VALUES(3,2,5);
+  SELECT a,b,c FROM t1 ORDER BY a;
+} {1 2 3 2 3 4}
+
+# Insert two rows where the second conflicts on C.  The first row show go
+# and and then there should be a constraint error.
+#
+do_test 10.3 {
+  catchsql {INSERT INTO t1(a,b,c) VALUES(4,5,6), (5,6,4);}
+} {1 {UNIQUE constraint failed: t1.c}}
+do_execsql_test 10.4 {
+  SELECT a,b,c FROM t1 ORDER BY a;
+} {1 2 3 2 3 4 4 5 6}
+
+# Change which column is the PRIMARY KEY
+#
+do_execsql_test 11.1 {
+  DROP TABLE t1;
+  CREATE TABLE t1(
+    a UNIQUE ON CONFLICT REPLACE, 
+    b UNIQUE ON CONFLICT IGNORE,
+    c PRIMARY KEY ON CONFLICT FAIL
+  ) WITHOUT ROWID;
+  INSERT INTO t1(a,b,c) VALUES(1,2,3), (2,3,4);
+  SELECT a,b,c FROM t1 ORDER BY a;
+} {1 2 3 2 3 4}
+
+# Insert a row that conflicts on column B.  The insert should be ignored.
+#
+do_execsql_test 11.2 {
+  INSERT INTO t1(a,b,c) VALUES(3,2,5);
+  SELECT a,b,c FROM t1 ORDER BY a;
+} {1 2 3 2 3 4}
+
+# Insert two rows where the second conflicts on C.  The first row show go
+# and and then there should be a constraint error.
+#
+do_test 11.3 {
+  catchsql {INSERT INTO t1(a,b,c) VALUES(4,5,6), (5,6,4);}
+} {1 {UNIQUE constraint failed: t1.c}}
+do_execsql_test 11.4 {
+  SELECT a,b,c FROM t1 ORDER BY a;
+} {1 2 3 2 3 4 4 5 6}
+
+# Check that ticket [f68dc596c4] has been fixed.
+#
+do_execsql_test 12.1 {
+  CREATE TABLE t2(a INTEGER PRIMARY KEY, b TEXT);
+  INSERT INTO t2 VALUES(111, '111');
+}
+do_execsql_test 12.2 {
+  REPLACE INTO t2 VALUES(NULL, '112'), (111, '111B');
+}
+do_execsql_test 12.3 {
+  SELECT * FROM t2;
+} {111 111B 112 112}
+
+#-------------------------------------------------------------------------
+ifcapable trigger {
+  reset_db
+  do_execsql_test 13.1.0 {
+    PRAGMA recursive_triggers = true;
+    CREATE TABLE t0 (c0 UNIQUE, c1 UNIQUE);
+    CREATE TRIGGER tr0 AFTER DELETE ON t0 BEGIN 
+      DELETE FROM t0; 
+    END;
+
+    INSERT INTO t0 VALUES(1, NULL);
+    INSERT INTO t0 VALUES(0, NULL);
+  }
+
+  do_catchsql_test 13.1.1 {
+    UPDATE OR REPLACE t0 SET c1 = 1;
+  } {1 {constraint failed}}
+
+  integrity_check 13.1.2
+
+  do_execsql_test 13.1.3 {
+    SELECT * FROM t0
+  } {1 {} 0 {}}
+
+  do_execsql_test 13.2.0 {
+    CREATE TABLE t2 (a PRIMARY KEY, b UNIQUE, c UNIQUE) WITHOUT ROWID;
+    CREATE TRIGGER tr3 AFTER DELETE ON t2 BEGIN 
+      DELETE FROM t2; 
+    END;
+
+    INSERT INTO t2 VALUES(1, 1, 1);
+    INSERT INTO t2 VALUES(2, 2, 2);
+  }
+
+  do_catchsql_test 13.2.1 {
+    UPDATE OR REPLACE t2 SET c = 0;
+  } {1 {constraint failed}}
+
+  integrity_check 13.2.2
+
+  do_execsql_test 13.2.3 {
+    SELECT * FROM t2
+  } {1 1 1 2 2 2}
+
+  do_execsql_test 13.3.0 {
+    CREATE TABLE t1(a, b);
+    CREATE TABLE log(x);
+    CREATE INDEX i1 ON t1(a);
+    INSERT INTO t1 VALUES(1, 2);
+
+    CREATE TRIGGER tb BEFORE UPDATE ON t1 BEGIN
+      DELETE FROM t1;
+    END;
+    CREATE TRIGGER ta AFTER UPDATE ON t1 BEGIN
+      INSERT INTO log VALUES('fired!');
+    END;
+
+    UPDATE t1 SET b=3;
+  }
+
+  do_execsql_test 13.3.1 {
+    SELECT * FROM t1;
+  } {}
+  do_execsql_test 13.3.2 {
+    SELECT * FROM log;
+  } {}
+}
+
+finish_test
diff --git a/test/contrib01.test b/test/contrib01.test
new file mode 100644
index 0000000000000000000000000000000000000000..43ea47c3e464f57721f97c34e9d8baf18b264002
--- /dev/null
+++ b/test/contrib01.test
@@ -0,0 +1,90 @@
+# 2013-06-05
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file contains test cases that were contributed on the sqlite-users
+# mailing list on 2013-06-05 by Mi Chen at mi.chen@echostar.com.
+#
+# At the time it was contributed, this test failed on trunk, but 
+# worked on the NGQP.
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Build some test data
+#
+do_test contrib01-1.0 {
+  db eval {
+    CREATE TABLE T1 (B INTEGER NOT NULL,
+                     C INTEGER NOT NULL,
+                     D INTEGER NOT NULL,
+                     E INTEGER NOT NULL,
+                     F INTEGER NOT NULL,
+                     G INTEGER NOT NULL,
+                     H INTEGER NOT NULL,
+                     PRIMARY KEY (B, C, D));
+    
+    CREATE TABLE T2 (A INTEGER NOT NULL,
+                     B INTEGER NOT NULL,
+                     C INTEGER NOT NULL,
+                     PRIMARY KEY (A, B, C));
+    
+    INSERT INTO T2(A, B, C) VALUES(702118,16183,15527);
+    INSERT INTO T2(A, B, C) VALUES(702118,16183,15560);
+    INSERT INTO T2(A, B, C) VALUES(702118,16183,15561);
+    INSERT INTO T2(A, B, C) VALUES(702118,16183,15563);
+    INSERT INTO T2(A, B, C) VALUES(702118,16183,15564);
+    INSERT INTO T2(A, B, C) VALUES(702118,16183,15566);
+    INSERT INTO T2(A, B, C) VALUES(702118,16183,15567);
+    INSERT INTO T2(A, B, C) VALUES(702118,16183,15569);
+    INSERT INTO T2(A, B, C) VALUES(702118,16183,15612);
+    INSERT INTO T2(A, B, C) VALUES(702118,16183,15613);
+    INSERT INTO T2(A, B, C) VALUES(702118,16183,15638);
+    INSERT INTO T2(A, B, C) VALUES(702118,16183,15681);
+    INSERT INTO T2(A, B, C) VALUES(702118,16183,15682);
+    
+    INSERT INTO T1(B, C, D, E, F, G, H) VALUES(16183,15527,6,0,5,5,0);
+    INSERT INTO T1(B, C, D, E, F, G, H) VALUES(16183,15560,6,0,5,2,0);
+    INSERT INTO T1(B, C, D, E, F, G, H) VALUES(16183,15561,6,0,5,2,0);
+    INSERT INTO T1(B, C, D, E, F, G, H) VALUES(16183,15563,6,0,5,2,0);
+    INSERT INTO T1(B, C, D, E, F, G, H) VALUES(16183,15564,6,0,5,2,0);
+    INSERT INTO T1(B, C, D, E, F, G, H) VALUES(16183,15566,6,0,5,2,0);
+    INSERT INTO T1(B, C, D, E, F, G, H) VALUES(16183,15567,6,0,5,2,0);
+    INSERT INTO T1(B, C, D, E, F, G, H) VALUES(16183,15569,6,0,5,2,0);
+    INSERT INTO T1(B, C, D, E, F, G, H) VALUES(16183,15612,6,0,5,5,0);
+    INSERT INTO T1(B, C, D, E, F, G, H) VALUES(16183,15613,6,0,5,2,0);
+    INSERT INTO T1(B, C, D, E, F, G, H) VALUES(16183,15638,6,0,5,2,0);
+    INSERT INTO T1(B, C, D, E, F, G, H) VALUES(16183,15681,6,0,5,5,0);
+    INSERT INTO T1(B, C, D, E, F, G, H) VALUES(16183,15682,6,0,5,2,0);
+  }
+} {}
+do_test contrib01-1.1 {
+  db eval {
+    SELECT T2.A, T2.B, T1.D, T1.E, T1.F, T1.G, T1.H, MAX(T1.C), '^'
+      FROM T1, T2
+     WHERE T1.B = T2.B
+       AND T1.C = T2.C
+     GROUP BY T2.A, T2.B, T1.D, T1.E, T1.F, T1.G, T1.H
+     ORDER BY +max(t1.c);
+  }
+} {702118 16183 6 0 5 5 0 15681 ^ 702118 16183 6 0 5 2 0 15682 ^}
+do_test contrib01-1.2 {
+  db eval {
+   SELECT T2.A, T2.B, T1.D, T1.E, T1.F, T1.G, T1.H, MAX(T1.C), '^'
+     FROM T1, T2
+    WHERE T1.B = T2.B
+      AND T1.C = T2.C
+    GROUP BY T2.A, T2.B, T1.F, T1.D, T1.E, T1.G, T1.H
+    ORDER BY +max(t1.c);
+  }
+} {702118 16183 6 0 5 5 0 15681 ^ 702118 16183 6 0 5 2 0 15682 ^}
+
+finish_test
diff --git a/test/corrupt.test b/test/corrupt.test
new file mode 100644
index 0000000000000000000000000000000000000000..ff61cc0bbe9b636acce488b4c0181f19cbfda49f
--- /dev/null
+++ b/test/corrupt.test
@@ -0,0 +1,349 @@
+# 2004 August 30 {}
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to make sure SQLite does not crash or
+# segfault if it sees a corrupt database file.
+#
+# $Id: corrupt.test,v 1.12 2009/07/13 09:41:45 danielk1977 Exp $
+
+catch {forcedelete test.db test.db-journal test.bu}
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Do not use a codec for tests in this file, as the database file is
+# manipulated directly using tcl scripts (using the [hexio_write] command).
+#
+do_not_use_codec
+
+# These tests deal with corrupt database files
+#
+database_may_be_corrupt
+
+# Construct a large database for testing.
+#
+do_test corrupt-1.1 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(randstr(100,100));
+    INSERT INTO t1 VALUES(randstr(90,90));
+    INSERT INTO t1 VALUES(randstr(80,80));
+    INSERT INTO t1 SELECT x || randstr(5,5) FROM t1;
+    INSERT INTO t1 SELECT x || randstr(6,6) FROM t1;
+    INSERT INTO t1 SELECT x || randstr(7,7) FROM t1;
+    INSERT INTO t1 SELECT x || randstr(8,8) FROM t1;
+    INSERT INTO t1 VALUES(randstr(3000,3000));
+    INSERT INTO t1 SELECT x || randstr(9,9) FROM t1;
+    INSERT INTO t1 SELECT x || randstr(10,10) FROM t1;
+    INSERT INTO t1 SELECT x || randstr(11,11) FROM t1;
+    INSERT INTO t1 SELECT x || randstr(12,12) FROM t1;
+    CREATE INDEX t1i1 ON t1(x);
+    CREATE TABLE t2 AS SELECT * FROM t1;
+    DELETE FROM t2 WHERE rowid%5!=0;
+    COMMIT;
+  }
+} {}
+integrity_check corrupt-1.2
+
+# Setup for the tests.  Make a backup copy of the good database in test.bu.
+# Create a string of garbage data that is 256 bytes long.
+#
+forcecopy test.db test.bu
+set fsize [file size test.db]
+set junk "abcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+while {[string length $junk]<256} {append junk $junk}
+set junk [string range $junk 0 255]
+
+# Go through the database and write garbage data into each 256 segment
+# of the file.  Then do various operations on the file to make sure that
+# the database engine can recover gracefully from the corruption.
+#
+for {set i [expr {1*256}]} {$i<$fsize-256} {incr i 256} {
+  set tn [expr {$i/256}]
+  db close
+  forcecopy test.bu test.db
+  set fd [open test.db r+]
+  fconfigure $fd -translation binary
+  seek $fd $i
+  puts -nonewline $fd $junk
+  close $fd
+  do_test corrupt-2.$tn.1 {
+    sqlite3 db test.db
+    catchsql {SELECT count(*) FROM sqlite_master}
+    set x {}
+  } {}
+  do_test corrupt-2.$tn.2 {
+    catchsql {SELECT count(*) FROM t1}
+    set x {}
+  } {}
+  do_test corrupt-2.$tn.3 {
+    catchsql {SELECT count(*) FROM t1 WHERE x>'abcdef'}
+    set x {}
+  } {}
+  do_test corrupt-2.$tn.4 {
+    catchsql {SELECT count(*) FROM t2}
+    set x {}
+  } {}
+  do_test corrupt-2.$tn.5 {
+    catchsql {CREATE TABLE t3 AS SELECT * FROM t1}
+    set x {}
+  } {}
+  do_test corrupt-2.$tn.6 {
+    catchsql {DROP TABLE t1}
+    set x {}
+  } {}
+  do_test corrupt-2.$tn.7 {
+    catchsql {PRAGMA integrity_check}
+    set x {}
+  } {}
+
+  # Check that no page references were leaked.
+  do_test corrupt-2.$tn.8 {
+    set bt [btree_from_db db]
+    db_enter db
+    array set stats [btree_pager_stats $bt]
+    db_leave db
+    set stats(ref)
+  } {0}
+}  
+
+#------------------------------------------------------------------------
+# For these tests, swap the rootpage entries of t1 (a table) and t1i1 (an
+# index on t1) in sqlite_master. Then perform a few different queries
+# and make sure this is detected as corruption.
+#
+do_test corrupt-3.1 {
+  db close
+  forcecopy test.bu test.db
+  sqlite3 db test.db
+  list
+} {}
+do_test corrupt-3.2 {
+  set t1_r [execsql {SELECT rootpage FROM sqlite_master WHERE name = 't1i1'}]
+  set t1i1_r [execsql {SELECT rootpage FROM sqlite_master WHERE name = 't1'}]
+  set cookie [expr [execsql {PRAGMA schema_version}] + 1]
+  sqlite3_db_config db DEFENSIVE 0
+  execsql "
+    PRAGMA writable_schema = 1;
+    UPDATE sqlite_master SET rootpage = $t1_r WHERE name = 't1';
+    UPDATE sqlite_master SET rootpage = $t1i1_r WHERE name = 't1i1';
+    PRAGMA writable_schema = 0;
+    PRAGMA schema_version = $cookie;
+  "
+} {}
+
+# This one tests the case caught by code in checkin [2313].
+do_test corrupt-3.3 {
+  db close
+  sqlite3 db test.db
+  catchsql {
+    INSERT INTO t1 VALUES('abc');
+  }
+} {1 {database disk image is malformed}}
+do_test corrupt-3.4 {
+  db close
+  sqlite3 db test.db
+  catchsql {
+    SELECT * FROM t1;
+  }
+} {1 {database disk image is malformed}}
+do_test corrupt-3.5 {
+  db close
+  sqlite3 db test.db
+  catchsql {
+    SELECT * FROM t1 WHERE oid = 10;
+  }
+} {1 {database disk image is malformed}}
+do_test corrupt-3.6 {
+  db close
+  sqlite3 db test.db
+  catchsql {
+    SELECT * FROM t1 WHERE x = 'abcde';
+  }
+} {1 {database disk image is malformed}}
+
+do_test corrupt-4.1 {
+  db close
+  forcedelete test.db test.db-journal
+  sqlite3 db test.db
+  execsql {
+    PRAGMA page_size = 1024;
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b TEXT);
+  }
+  for {set i 0} {$i < 10} {incr i} {
+    set text [string repeat $i 220]
+    execsql { INSERT INTO t1 VALUES($i, $text) }
+  }
+  execsql { CREATE INDEX i1 ON t1(b) }
+} {}
+do_test corrupt-4.2 {
+  set iRoot [db one {SELECT rootpage FROM sqlite_master WHERE name = 'i1'}]
+  set iOffset [hexio_get_int [hexio_read test.db [expr 12+($iRoot-1)*1024] 2]]
+  set data [hexio_render_int32 [expr $iRoot - 1]]
+  hexio_write test.db [expr ($iRoot-1)*1024 + $iOffset] $data
+  db close
+  sqlite3 db test.db
+
+  # The following DELETE statement attempts to delete a cell stored on the
+  # root page of index i1. After this cell is deleted it must be replaced
+  # by a cell retrieved from the child page (a leaf) of the deleted cell.
+  # This will fail, as the block modified the database image so that the
+  # child page of the deleted cell is from a table (intkey) b-tree, not an
+  # index b-tree as expected. At one point this was causing an assert()
+  # to fail.
+  catchsql { DELETE FROM t1 WHERE rowid = 3 }
+} {1 {database disk image is malformed}}
+
+do_test corrupt-5.1 {
+  db close
+  forcedelete test.db test.db-journal
+  sqlite3 db test.db
+
+  execsql { PRAGMA page_size = 1024 }
+  set ct "CREATE TABLE t1(c0 "
+  set i 0
+  while {[string length $ct] < 950} { append ct ", c[incr i]" }
+  append ct ")"
+  execsql $ct
+} {}
+
+do_test corrupt-5.2 {
+  db close
+  hexio_write test.db 108 00000000 
+  sqlite3 db test.db
+  catchsql { SELECT * FROM sqlite_master }
+} {1 {database disk image is malformed}}
+
+# At one point, the specific corruption caused by this test case was
+# causing a buffer overwrite. Although a crash was never demonstrated,
+# running this testcase under valgrind revealed the problem.
+do_test corrupt-6.1 {
+  db close
+  forcedelete test.db test.db-journal
+  sqlite3 db test.db
+  execsql { 
+    PRAGMA page_size = 1024; CREATE TABLE t1(x);
+  }
+
+  # The root page of t1 is 1024 bytes in size. The header is 8 bytes, and
+  # each of the cells inserted by the following INSERT statements consume
+  # 16 bytes (including the 2 byte cell-offset array entry). So the page
+  # can contain up to 63 cells.
+  for {set i 0} {$i < 63} {incr i} {
+    execsql { INSERT INTO t1 VALUES( randomblob(10) ) }
+  }
+
+  # Free the cell stored right at the end of the page (at offset pgsz-14).
+  execsql { DELETE FROM t1 WHERE rowid=1 }
+  set rootpage [db one {SELECT rootpage FROM sqlite_master WHERE name = 't1'}]
+  db close
+
+  set offset [expr ($rootpage * 1024)-14+2]
+  hexio_write test.db $offset 00FF
+  sqlite3 db test.db 
+
+  catchsql { INSERT INTO t1 VALUES( randomblob(10) ) }
+} {1 {database disk image is malformed}}
+
+ifcapable oversize_cell_check {
+  db close
+  forcedelete test.db test.db-journal
+  sqlite3 db test.db
+  execsql { 
+    PRAGMA page_size = 1024; CREATE TABLE t1(x);
+  }
+
+  do_test corrupt-7.1 {
+    for {set i 0} {$i < 39} {incr i} {
+      execsql {
+        INSERT INTO t1 VALUES(X'000100020003000400050006000700080009000A');
+      }
+    }
+  } {}
+  db close
+  
+  # Corrupt the root page of table t1 so that the first offset in the 
+  # cell-offset array points to the data for the SQL blob associated with
+  # record (rowid=10). The root page still passes the checks in btreeInitPage(),
+  # because the start of said blob looks like the start of a legitimate 
+  # page cell.
+  #
+  # Test case cc-2 overwrites the blob so that it no longer looks like a
+  # real cell. But, by the time it is overwritten, btreeInitPage() has already
+  # initialized the root page, so no corruption is detected.
+  #
+  # Test case cc-3 inserts an extra record into t1, forcing balance-deeper
+  # to run. After copying the contents of the root page to the new child,
+  # btreeInitPage() is called on the child. This time, it detects corruption
+  # (because the start of the blob associated with the (rowid=10) record
+  # no longer looks like a real cell). At one point the code assumed that 
+  # detecting corruption was not possible at that point, and an assert() failed.
+  #
+  set fd [open test.db r+]
+  fconfigure $fd -translation binary
+  seek $fd [expr 1024+8]
+  puts -nonewline $fd "\x03\x14"
+  close $fd
+  
+  sqlite3 db test.db
+  do_test corrupt-7.2 {
+    execsql { 
+      UPDATE t1 SET x = X'870400020003000400050006000700080009000A' 
+      WHERE rowid = 10;
+    }
+  } {}
+  do_test corrupt-7.3 {
+    catchsql {
+      INSERT INTO t1 VALUES(X'000100020003000400050006000700080009000A');
+    }
+  } {1 {database disk image is malformed}}
+}
+
+db close
+forcedelete test.db test.db-journal
+do_test corrupt-8.1 {
+  sqlite3 db test.db
+  execsql {
+    PRAGMA page_size = 1024;
+    PRAGMA secure_delete = on;
+    PRAGMA auto_vacuum = 0;
+    CREATE TABLE t1(x INTEGER PRIMARY KEY, y);
+    INSERT INTO t1 VALUES(5, randomblob(1900));
+  }
+
+  hexio_write test.db 2044 [hexio_render_int32 2]
+  hexio_write test.db 24   [hexio_render_int32 45]
+
+  catchsql { INSERT OR REPLACE INTO t1 VALUES(5, randomblob(1900)) }
+} {1 {database disk image is malformed}}
+
+db close
+forcedelete test.db test.db-journal
+do_test corrupt-8.2 {
+  sqlite3 db test.db
+  execsql {
+    PRAGMA page_size = 1024;
+    PRAGMA secure_delete = on;
+    PRAGMA auto_vacuum = 0;
+    CREATE TABLE t1(x INTEGER PRIMARY KEY, y);
+    INSERT INTO t1 VALUES(5, randomblob(900));
+    INSERT INTO t1 VALUES(6, randomblob(900));
+  }
+
+  hexio_write test.db 2047 FF
+  hexio_write test.db 24   [hexio_render_int32 45]
+
+  catchsql { INSERT INTO t1 VALUES(4, randomblob(1900)) }
+} {1 {database disk image is malformed}}
+
+finish_test
diff --git a/test/corrupt2.test b/test/corrupt2.test
new file mode 100644
index 0000000000000000000000000000000000000000..fc24cb376f5909c601e878d259b801f68cd59eeb
--- /dev/null
+++ b/test/corrupt2.test
@@ -0,0 +1,611 @@
+# 2004 August 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to make sure SQLite does not crash or
+# segfault if it sees a corrupt database file.
+#
+# $Id: corrupt2.test,v 1.20 2009/04/06 17:50:03 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix corrupt2
+
+# Do not use a codec for tests in this file, as the database file is
+# manipulated directly using tcl scripts (using the [hexio_write] command).
+#
+do_not_use_codec
+
+# These tests deal with corrupt database files
+#
+database_may_be_corrupt
+
+set presql ""
+catch { set presql "$::G(perm:presql);" }
+unset -nocomplain ::G(perm:presql)
+
+# The following tests - corrupt2-1.* - create some databases corrupted in
+# specific ways and ensure that SQLite detects them as corrupt.
+#
+do_test corrupt2-1.1 {
+  execsql {
+    PRAGMA auto_vacuum=0;
+    PRAGMA page_size=1024;
+    CREATE TABLE abc(a, b, c);
+  }
+} {}
+
+do_test corrupt2-1.2 {
+
+  # Corrupt the 16 byte magic string at the start of the file
+  forcedelete corrupt.db
+  forcedelete corrupt.db-journal
+  forcecopy test.db corrupt.db
+  set f [open corrupt.db RDWR]
+  seek $f 8 start
+  puts $f blah
+  close $f
+
+  sqlite3 db2 corrupt.db
+  catchsql "
+    $::presql
+    SELECT * FROM sqlite_master;
+  " db2
+} {1 {file is not a database}}
+
+do_test corrupt2-1.3 {
+  db2 close
+
+  # Corrupt the page-size (bytes 16 and 17 of page 1).
+  forcedelete corrupt.db
+  forcedelete corrupt.db-journal
+  forcecopy test.db corrupt.db
+  set f [open corrupt.db RDWR]
+  fconfigure $f -translation binary
+  seek $f 16 start
+  puts -nonewline $f "\x00\xFF"
+  close $f
+
+  sqlite3 db2 corrupt.db
+  catchsql "
+    $::presql
+    SELECT * FROM sqlite_master;
+  " db2
+} {1 {file is not a database}}
+
+do_test corrupt2-1.4 {
+  db2 close
+
+  # Corrupt the free-block list on page 1.
+  forcedelete corrupt.db
+  forcedelete corrupt.db-journal
+  forcecopy test.db corrupt.db
+  set f [open corrupt.db RDWR]
+  fconfigure $f -translation binary
+  seek $f 101 start
+  puts -nonewline $f "\xFF\xFF"
+  close $f
+
+  sqlite3 db2 corrupt.db
+  # Note: This test is no longer meaningful due to the deferred computation
+  # of MemPage.nFree 
+  catchsql {PRAGMA quick_check} db2
+} {0 {{*** in database main ***
+Tree 1 page 1: free space corruption}}}
+
+do_test corrupt2-1.5 {
+  db2 close
+
+  # Corrupt the free-block list on page 1.
+  forcedelete corrupt.db
+  forcedelete corrupt.db-journal
+  forcecopy test.db corrupt.db
+  set f [open corrupt.db RDWR]
+  fconfigure $f -translation binary
+  seek $f 101 start
+  puts -nonewline $f "\x00\xC8"
+  seek $f 200 start
+  puts -nonewline $f "\x00\x00"
+  puts -nonewline $f "\x10\x00"
+  close $f
+
+  sqlite3 db2 corrupt.db
+  catchsql {PRAGMA quick_check} db2
+} {0 {{*** in database main ***
+Tree 1 page 1: free space corruption}}}
+db2 close
+
+# Corrupt a database by having 2 indices of the same name:
+do_test corrupt2-2.1 {
+
+  forcedelete corrupt.db
+  forcedelete corrupt.db-journal
+  forcecopy test.db corrupt.db
+
+  sqlite3 db2 corrupt.db 
+  sqlite3_db_config db2 DEFENSIVE 0
+  execsql "
+    $::presql
+    CREATE INDEX a1 ON abc(a);
+    CREATE INDEX a2 ON abc(b);
+    PRAGMA writable_schema = 1;
+    UPDATE sqlite_master 
+      SET name = 'a3', sql = 'CREATE INDEX a3' || substr(sql, 16, 10000)
+      WHERE type = 'index';
+    PRAGMA writable_schema = 0;
+  " db2
+
+  db2 close
+  sqlite3 db2 corrupt.db 
+  catchsql "
+    $::presql
+    SELECT * FROM sqlite_master;
+  " db2
+} {1 {malformed database schema (a3) - index a3 already exists}}
+
+db2 close
+
+do_test corrupt2-3.1 {
+  forcedelete corrupt.db
+  forcedelete corrupt.db-journal
+  sqlite3 db2 corrupt.db 
+
+  execsql "
+    $::presql
+    PRAGMA auto_vacuum = 1;
+    PRAGMA page_size = 1024;
+    CREATE TABLE t1(a, b, c);
+    CREATE TABLE t2(a, b, c);
+    INSERT INTO t2 VALUES(randomblob(100), randomblob(100), randomblob(100));
+    INSERT INTO t2 SELECT * FROM t2;
+    INSERT INTO t2 SELECT * FROM t2;
+    INSERT INTO t2 SELECT * FROM t2;
+    INSERT INTO t2 SELECT * FROM t2;
+  " db2
+
+  db2 close
+
+  # On the root page of table t2 (page 4), set one of the child page-numbers
+  # to 0. This corruption will be detected when SQLite attempts to update
+  # the pointer-map after moving the content of page 4 to page 3 as part
+  # of the DROP TABLE operation below.
+  #
+  set fd [open corrupt.db r+]
+  fconfigure $fd -translation binary
+  seek $fd [expr 1024*3 + 12]
+  set zCelloffset [read $fd 2]
+  binary scan $zCelloffset S iCelloffset
+  seek $fd [expr 1024*3 + $iCelloffset]
+  puts -nonewline $fd "\00\00\00\00" 
+  close $fd
+
+  sqlite3 db2 corrupt.db 
+  catchsql "
+    $::presql
+    DROP TABLE t1;
+  " db2
+} {1 {database disk image is malformed}}
+
+do_test corrupt2-4.1 {
+  catchsql {
+    SELECT * FROM t2;
+  } db2
+} {1 {database disk image is malformed}}
+
+db2 close
+
+unset -nocomplain result
+do_test corrupt2-5.1 {
+  forcedelete corrupt.db
+  forcedelete corrupt.db-journal
+  sqlite3 db2 corrupt.db 
+
+  execsql "
+    $::presql
+    PRAGMA auto_vacuum = 0;
+    PRAGMA page_size = 1024;
+    CREATE TABLE t1(a, b, c);
+    CREATE TABLE t2(a, b, c);
+    INSERT INTO t2 VALUES(randomblob(100), randomblob(100), randomblob(100));
+    INSERT INTO t2 SELECT * FROM t2;
+    INSERT INTO t2 SELECT * FROM t2;
+    INSERT INTO t2 SELECT * FROM t2;
+    INSERT INTO t2 SELECT * FROM t2;
+    INSERT INTO t1 SELECT * FROM t2;
+  " db2
+
+  db2 close
+
+  # This block links a page from table t2 into the t1 table structure.
+  #
+  set fd [open corrupt.db r+]
+  fconfigure $fd -translation binary
+  seek $fd [expr 1024 + 12]
+  set zCelloffset [read $fd 2]
+  binary scan $zCelloffset S iCelloffset
+  seek $fd [expr 1024 + $iCelloffset]
+  set zChildPage [read $fd 4]
+  seek $fd [expr 2*1024 + 12]
+  set zCelloffset [read $fd 2]
+  binary scan $zCelloffset S iCelloffset
+  seek $fd [expr 2*1024 + $iCelloffset]
+  puts -nonewline $fd $zChildPage
+  close $fd
+
+  sqlite3 db2 corrupt.db 
+  db2 eval $::presql
+  db2 eval {SELECT rowid FROM t1} {
+    set result [db2 eval {pragma integrity_check}]
+    break
+  }
+  set result
+} {{*** in database main ***
+Tree 2 page 2 cell 0: 2nd reference to page 10
+Page 4: never used}}
+
+db2 close
+
+proc corruption_test {args} {
+  set A(-corrupt) {}
+  set A(-sqlprep) {}
+  set A(-tclprep) {}
+  array set A $args
+
+  catch {db close}
+  forcedelete corrupt.db
+  forcedelete corrupt.db-journal
+
+  sqlite3 db corrupt.db 
+  sqlite3_db_config db DEFENSIVE 0
+  db eval $::presql
+  eval $A(-tclprep)
+  db eval $A(-sqlprep)
+  db close
+
+  eval $A(-corrupt)
+
+  sqlite3 db corrupt.db
+  eval $A(-test)
+}
+
+ifcapable autovacuum {
+  # The tests within this block - corrupt2-6.* - aim to test corruption
+  # detection within an incremental-vacuum. When an incremental-vacuum
+  # step is executed, the last non-free page of the database file is 
+  # moved into a free space in the body of the file. After doing so,
+  # the page reference in the parent page must be updated to refer
+  # to the new location. These tests test the outcome of corrupting
+  # that page reference before performing the incremental vacuum.
+  #
+
+  # The last page in the database page is the second page 
+  # in an overflow chain.
+  #
+  corruption_test -sqlprep {
+    PRAGMA auto_vacuum = incremental;
+    PRAGMA page_size = 1024;
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, randomblob(2500));
+    INSERT INTO t1 VALUES(2, randomblob(2500));
+    DELETE FROM t1 WHERE a = 1;
+  } -corrupt {
+    hexio_write corrupt.db [expr 1024*5] 00000008
+  } -test {
+    do_test corrupt2-6.1 {
+      catchsql " $::presql pragma incremental_vacuum = 1 "
+    } {1 {database disk image is malformed}}
+  }
+
+  # The last page in the database page is a non-root b-tree page.
+  #
+  corruption_test -sqlprep {
+    PRAGMA auto_vacuum = incremental;
+    PRAGMA page_size = 1024;
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+    INSERT INTO t1 VALUES(1, randomblob(2500));
+    INSERT INTO t1 VALUES(2, randomblob(50));
+    INSERT INTO t1 SELECT NULL, randomblob(50) FROM t1;
+    INSERT INTO t1 SELECT NULL, randomblob(50) FROM t1;
+    INSERT INTO t1 SELECT NULL, randomblob(50) FROM t1;
+    INSERT INTO t1 SELECT NULL, randomblob(50) FROM t1;
+    DELETE FROM t1 WHERE a = 1;
+  } -corrupt {
+    hexio_write corrupt.db [expr 1024*2 + 8] 00000009
+  } -test {
+    do_test corrupt2-6.2 {
+      catchsql " $::presql pragma incremental_vacuum = 1 "
+    } {1 {database disk image is malformed}}
+  }
+
+  # Set up a pointer-map entry so that the last page of the database
+  # file appears to be a b-tree root page. This should be detected
+  # as corruption.
+  #
+  corruption_test -sqlprep {
+    PRAGMA auto_vacuum = incremental;
+    PRAGMA page_size = 1024;
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+    INSERT INTO t1 VALUES(1, randomblob(2500));
+    INSERT INTO t1 VALUES(2, randomblob(2500));
+    INSERT INTO t1 VALUES(3, randomblob(2500));
+    DELETE FROM t1 WHERE a = 1;
+  } -corrupt {
+    set nPage [expr [file size corrupt.db] / 1024]
+    hexio_write corrupt.db [expr 1024 + ($nPage-3)*5] 010000000
+  } -test {
+    do_test corrupt2-6.3 {
+      catchsql " $::presql pragma incremental_vacuum = 1 "
+    } {1 {database disk image is malformed}}
+  }
+
+  if {![nonzero_reserved_bytes]} {
+    corruption_test -sqlprep {
+      PRAGMA auto_vacuum = 1;
+      PRAGMA page_size = 1024;
+      CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+      INSERT INTO t1 VALUES(1, randomblob(2500));
+      DELETE FROM t1 WHERE a = 1;
+    } -corrupt {
+      set nAppend [expr 1024*207 - [file size corrupt.db]]
+      set fd [open corrupt.db r+]
+      seek $fd 0 end
+      puts -nonewline $fd [string repeat x $nAppend]
+      close $fd
+      hexio_write corrupt.db 28 00000000
+    } -test {
+      do_test corrupt2-6.4 {
+        catchsql " 
+          $::presql 
+          BEGIN EXCLUSIVE;
+          COMMIT;
+        "
+      } {1 {database disk image is malformed}}
+    }
+  }
+}
+
+
+set sqlprep {
+  PRAGMA auto_vacuum = 0;
+  PRAGMA page_size = 1024;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+  CREATE INDEX i1 ON t1(b);
+  INSERT INTO t1 VALUES(1, randomblob(50));
+  INSERT INTO t1 SELECT NULL, randomblob(50) FROM t1;
+  INSERT INTO t1 SELECT NULL, randomblob(50) FROM t1;
+  INSERT INTO t1 SELECT NULL, randomblob(50) FROM t1;
+  INSERT INTO t1 SELECT NULL, randomblob(50) FROM t1;
+  INSERT INTO t1 SELECT NULL, randomblob(50) FROM t1;
+  INSERT INTO t1 SELECT NULL, randomblob(50) FROM t1;
+}
+
+corruption_test -sqlprep $sqlprep -corrupt {
+  # Set the page-flags of one of the leaf pages of the index B-Tree to
+  # 0x0D (interpreted by SQLite as "leaf page of a table B-Tree").
+  #
+  set fd [open corrupt.db r+]
+  fconfigure $fd -translation binary
+  seek $fd [expr 1024*2 + 8] 
+  set zRightChild [read $fd 4]
+  binary scan $zRightChild I iRightChild
+  seek $fd [expr 1024*($iRightChild-1)]
+  puts -nonewline $fd "\x0D"
+  close $fd
+} -test {
+  do_test corrupt2-7.1 {
+    catchsql " $::presql SELECT b FROM t1 ORDER BY b ASC "
+  } {1 {database disk image is malformed}}
+}
+
+corruption_test -sqlprep $sqlprep -corrupt {
+  # Mess up the page-header of one of the leaf pages of the index B-Tree.
+  # The corruption is detected as part of an OP_Prev opcode.
+  #
+  set fd [open corrupt.db r+]
+  fconfigure $fd -translation binary
+  seek $fd [expr 1024*2 + 12] 
+  set zCellOffset [read $fd 2]
+  binary scan $zCellOffset S iCellOffset
+  seek $fd [expr 1024*2 + $iCellOffset]
+  set zChild [read $fd 4]
+  binary scan $zChild I iChild
+  seek $fd [expr 1024*($iChild-1)+3]
+  puts -nonewline $fd "\xFFFF"
+  close $fd
+} -test {
+  do_test corrupt2-7.1 {
+    catchsql " $::presql SELECT b FROM t1 ORDER BY b DESC "
+  } {1 {database disk image is malformed}}
+}
+
+corruption_test -sqlprep $sqlprep -corrupt {
+  # Set the page-flags of one of the leaf pages of the table B-Tree to
+  # 0x0A (interpreted by SQLite as "leaf page of an index B-Tree").
+  #
+  set fd [open corrupt.db r+]
+  fconfigure $fd -translation binary
+  seek $fd [expr 1024*1 + 8] 
+  set zRightChild [read $fd 4]
+  binary scan $zRightChild I iRightChild
+  seek $fd [expr 1024*($iRightChild-1)]
+  puts -nonewline $fd "\x0A"
+  close $fd
+} -test {
+  do_test corrupt2-8.1 {
+    catchsql " $::presql SELECT * FROM t1 WHERE rowid=1000 "
+  } {1 {database disk image is malformed}}
+}
+
+corruption_test -sqlprep {
+  CREATE TABLE t1(a, b, c); CREATE TABLE t8(a, b, c); CREATE TABLE tE(a, b, c);
+  CREATE TABLE t2(a, b, c); CREATE TABLE t9(a, b, c); CREATE TABLE tF(a, b, c);
+  CREATE TABLE t3(a, b, c); CREATE TABLE tA(a, b, c); CREATE TABLE tG(a, b, c);
+  CREATE TABLE t4(a, b, c); CREATE TABLE tB(a, b, c); CREATE TABLE tH(a, b, c);
+  CREATE TABLE t5(a, b, c); CREATE TABLE tC(a, b, c); CREATE TABLE tI(a, b, c);
+  CREATE TABLE t6(a, b, c); CREATE TABLE tD(a, b, c); CREATE TABLE tJ(a, b, c);
+  CREATE TABLE x1(a, b, c); CREATE TABLE x8(a, b, c); CREATE TABLE xE(a, b, c);
+  CREATE TABLE x2(a, b, c); CREATE TABLE x9(a, b, c); CREATE TABLE xF(a, b, c);
+  CREATE TABLE x3(a, b, c); CREATE TABLE xA(a, b, c); CREATE TABLE xG(a, b, c);
+  CREATE TABLE x4(a, b, c); CREATE TABLE xB(a, b, c); CREATE TABLE xH(a, b, c);
+  CREATE TABLE x5(a, b, c); CREATE TABLE xC(a, b, c); CREATE TABLE xI(a, b, c);
+  CREATE TABLE x6(a, b, c); CREATE TABLE xD(a, b, c); CREATE TABLE xJ(a, b, c);
+} -corrupt {
+  set fd [open corrupt.db r+]
+  fconfigure $fd -translation binary
+  seek $fd 108
+  set zRightChild [read $fd 4]
+  binary scan $zRightChild I iRightChild
+  seek $fd [expr 1024*($iRightChild-1)+3]
+  puts -nonewline $fd "\x00\x00"
+  close $fd
+} -test {
+  do_test corrupt2-9.1 {
+    catchsql " $::presql SELECT sql FROM sqlite_master "
+  } {1 {database disk image is malformed}}
+}
+
+corruption_test -sqlprep {
+  CREATE TABLE t1(a, b, c);
+  CREATE TABLE t2(a, b, c);
+  PRAGMA writable_schema = 1;
+  UPDATE sqlite_master SET rootpage = NULL WHERE name = 't2';
+} -test {
+  do_test corrupt2-10.1 {
+    catchsql " $::presql SELECT * FROM t2 "
+  } {1 {malformed database schema (t2)}}
+  do_test corrupt2-10.2 {
+    sqlite3_errcode db
+  } {SQLITE_CORRUPT}
+}
+
+corruption_test -sqlprep {
+  PRAGMA auto_vacuum = incremental;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+  CREATE TABLE t2(a INTEGER PRIMARY KEY, b);
+  INSERT INTO t1 VALUES(1, randstr(100,100));
+  INSERT INTO t1 SELECT NULL, randstr(100,100) FROM t1;
+  INSERT INTO t1 SELECT NULL, randstr(100,100) FROM t1;
+  INSERT INTO t1 SELECT NULL, randstr(100,100) FROM t1;
+  INSERT INTO t1 SELECT NULL, randstr(100,100) FROM t1;
+  INSERT INTO t1 SELECT NULL, randstr(100,100) FROM t1;
+  INSERT INTO t2 SELECT * FROM t1;
+  DELETE FROM t1;
+} -corrupt {
+  set offset [expr [file size corrupt.db] - 1024]
+  hexio_write corrupt.db $offset FF 
+  hexio_write corrupt.db 24   12345678
+} -test {
+  do_test corrupt2-11.1 {
+    catchsql " $::presql PRAGMA incremental_vacuum "
+  } {1 {database disk image is malformed}}
+}
+corruption_test -sqlprep {
+  PRAGMA auto_vacuum = incremental;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+  CREATE TABLE t2(a INTEGER PRIMARY KEY, b);
+  INSERT INTO t1 VALUES(1, randstr(100,100));
+  INSERT INTO t1 SELECT NULL, randstr(100,100) FROM t1;
+  INSERT INTO t1 SELECT NULL, randstr(100,100) FROM t1;
+  INSERT INTO t1 SELECT NULL, randstr(100,100) FROM t1;
+  INSERT INTO t1 SELECT NULL, randstr(100,100) FROM t1;
+  INSERT INTO t1 SELECT NULL, randstr(100,100) FROM t1;
+  INSERT INTO t2 SELECT * FROM t1;
+  DELETE FROM t1;
+} -corrupt {
+  set pgno [expr [file size corrupt.db] / 1024]
+  hexio_write corrupt.db [expr 1024+5*($pgno-3)] 03 
+  hexio_write corrupt.db 24   12345678
+} -test {
+  do_test corrupt2-12.1 {
+    catchsql " $::presql PRAGMA incremental_vacuum "
+  } {1 {database disk image is malformed}}
+}
+
+ifcapable autovacuum {
+  # It is not possible for the last page in a database file to be the
+  # pending-byte page (AKA the locking page). This test verifies that if
+  # an attempt is made to commit a transaction to such an auto-vacuum 
+  # database SQLITE_CORRUPT is returned.
+  #
+  corruption_test -tclprep {
+    db eval { 
+      PRAGMA auto_vacuum = full;
+      PRAGMA page_size = 1024;
+      CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+      INSERT INTO t1 VALUES(NULL, randstr(50,50));
+    }
+    for {set ii 0} {$ii < 10} {incr ii} {
+      db eval " $::presql INSERT INTO t1 SELECT NULL, randstr(50,50) FROM t1 "
+    }
+  } -corrupt {
+    do_test corrupt2-13.1 {
+      file size corrupt.db
+    } $::sqlite_pending_byte
+    hexio_write corrupt.db [expr $::sqlite_pending_byte+1023] 00
+    hexio_write corrupt.db 28 00000000
+  } -test {
+    do_test corrupt2-13.2 {
+      file size corrupt.db
+    } [expr $::sqlite_pending_byte + 1024]
+    do_test corrupt2-13.3 {
+      catchsql { DELETE FROM t1 WHERE rowid < 30; }
+    } {1 {database disk image is malformed}}
+  }
+}
+
+#-------------------------------------------------------------------------
+# Test that PRAGMA integrity_check detects cases where the freelist-count
+# header field is smaller than the actual number of pages on the freelist.
+#
+
+reset_db
+do_execsql_test 14.0 {
+  PRAGMA auto_vacuum = 0;
+  CREATE TABLE t1(x);
+  INSERT INTO t1 VALUES(randomblob(3500));
+  DELETE FROM t1;
+}
+
+do_execsql_test 14.1 {
+  PRAGMA integrity_check;
+  PRAGMA freelist_count;
+} {ok 3}
+
+# There are now 3 free pages. Modify the header-field so that it 
+# (incorrectly) says that just 2 are free.
+do_test 14.2 {
+  db close
+  hexio_write test.db 36 [hexio_render_int32 2]
+  sqlite3 db test.db
+  execsql { PRAGMA freelist_count }
+} {2}
+
+do_execsql_test 14.3 {
+  PRAGMA integrity_check;
+} {{*** in database main ***
+Freelist: size is 3 but should be 2}}
+
+# Use 2 of the free pages on the free-list.
+#
+do_execsql_test 14.4 {
+  INSERT INTO t1 VALUES(randomblob(2500));
+  PRAGMA freelist_count;
+} {0}
+
+do_execsql_test 14.5 {
+  PRAGMA integrity_check;
+} {{*** in database main ***
+Freelist: size is 1 but should be 0}}
+
+
+finish_test
+
+finish_test
diff --git a/test/corrupt3.test b/test/corrupt3.test
new file mode 100644
index 0000000000000000000000000000000000000000..691302f7af5dc87d1e3a5de4d001a89abbb3101a
--- /dev/null
+++ b/test/corrupt3.test
@@ -0,0 +1,121 @@
+# 2007 April 6
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to make sure SQLite does not crash or
+# segfault if it sees a corrupt database file.
+#
+# $Id: corrupt3.test,v 1.2 2007/04/06 21:42:22 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# This module uses hard-coded offsets which do not work if the reserved_bytes
+# value is nonzero.
+if {[nonzero_reserved_bytes]} {finish_test; return;}
+
+# These tests deal with corrupt database files
+#
+database_may_be_corrupt
+
+# We must have the page_size pragma for these tests to work.
+#
+ifcapable !pager_pragmas||direct_read {
+  finish_test
+  return
+}
+
+# Create a database with an overflow page.
+#
+do_test corrupt3-1.1 {
+  set bigstring [string repeat 0123456789 200]
+  execsql {
+    PRAGMA auto_vacuum=OFF;
+    PRAGMA page_size=1024;
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES($bigstring);
+  }
+  file size test.db
+} [expr {1024*3}]
+
+# Verify that the file format is as we expect.  The page size
+# should be 1024 bytes.  The only record should have a single
+# overflow page.  The overflow page is page 3.  The pointer to
+# the overflow page is on the last 4 bytes of page 2.
+#
+do_test corrupt3-1.2 {
+  hexio_get_int [hexio_read test.db 16 2]
+} 1024   ;# The page size is 1024
+do_test corrupt3-1.3 {
+  hexio_get_int [hexio_read test.db 20 1]
+} 0      ;# Unused bytes per page is 0
+do_test corrupt3-1.4 {
+  hexio_get_int [hexio_read test.db 2044 4]
+} 3      ;# Overflow page is 3
+do_test corrupt3-1.5 {
+  hexio_get_int [hexio_read test.db 2048 4]
+} 0      ;# First chained overflow is 0
+
+integrity_check corrupt3-1.6
+
+# Make the overflow chain loop back on itself.   See if the
+# corruption is detected.
+#
+do_test corrupt3-1.7 {
+  db close
+  hexio_write test.db 2048 [hexio_render_int32 3]
+  sqlite3 db test.db
+  catchsql {
+    SELECT x FROM t1
+  }
+} [list 0 $bigstring]
+do_test corrupt3-1.8 {
+  catchsql {
+    PRAGMA integrity_check
+  }
+} {0 {{*** in database main ***
+Tree 2 page 2 cell 0: 2nd reference to page 3}}}
+
+# Change the pointer for the first page of the overflow
+# change to be a non-existant page.
+#
+do_test corrupt3-1.9 {
+  db close
+  hexio_write test.db 2044 [hexio_render_int32 4]
+  sqlite3 db test.db
+  catchsql {
+    SELECT substr(x,1,10) FROM t1
+  }
+} [list 1 {database disk image is malformed}]
+do_test corrupt3-1.10 {
+  catchsql {
+    PRAGMA integrity_check
+  }
+} {0 {{*** in database main ***
+Tree 2 page 2 cell 0: invalid page number 4
+Page 3: never used}}}
+do_test corrupt3-1.11 {
+  db close
+  hexio_write test.db 2044 [hexio_render_int32 0]
+  sqlite3 db test.db
+  catchsql {
+    SELECT substr(x,1,10) FROM t1
+  }
+} [list 1 {database disk image is malformed}]
+do_test corrupt3-1.12 {
+  catchsql {
+    PRAGMA integrity_check
+  }
+} {0 {{*** in database main ***
+Tree 2 page 2 cell 0: overflow list length is 0 but should be 1
+Page 3: never used}}}
+
+finish_test
diff --git a/test/corrupt4.test b/test/corrupt4.test
new file mode 100644
index 0000000000000000000000000000000000000000..544ac330534c1432d7a639075263161e35deb97e
--- /dev/null
+++ b/test/corrupt4.test
@@ -0,0 +1,149 @@
+# 2007 Sept 7
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to make sure SQLite does not crash or
+# segfault if it sees a corrupt database file.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix corrupt4
+
+# This module uses hard-coded offsets which do not work if the reserved_bytes
+# value is nonzero.
+if {[nonzero_reserved_bytes]} {finish_test; return;}
+
+# These tests deal with corrupt database files
+#
+database_may_be_corrupt
+
+# We must have the page_size pragma for these tests to work.
+#
+ifcapable !pager_pragmas {
+  finish_test
+  return
+}
+
+# Create a database with a freelist containing at least two pages.
+#
+do_test corrupt4-1.1 {
+  set bigstring [string repeat 0123456789 200]
+  execsql {
+    PRAGMA auto_vacuum=OFF;
+    PRAGMA page_size=1024;
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES($bigstring);
+    CREATE TABLE t2(y);
+    INSERT INTO t2 VALUES(1);
+    DROP TABLE t1;
+  }
+  file size test.db
+} [expr {1024*4}]
+
+# Verify that there are two pages on the freelist.
+#
+do_test corrupt4-1.2 {
+  execsql {PRAGMA freelist_count}
+} {2}
+
+# Get the page number for the trunk of the freelist.
+#
+set trunkpgno [hexio_get_int [hexio_read test.db 32 4]]
+set baseaddr [expr {($trunkpgno-1)*1024}]
+
+# Verify that the trunk of the freelist has exactly one
+# leaf.
+#
+do_test corrupt4-1.3 {
+  hexio_get_int [hexio_read test.db [expr {$::baseaddr+4}] 4]
+} {1}
+
+# Insert a negative number as the number of leaves on the trunk.
+# Then try to add a new element to the freelist.
+#
+do_test corrupt4-1.4 {
+  hexio_write test.db [expr {$::baseaddr+4}] [hexio_render_int32 -100000000]
+  db close
+  sqlite3 db test.db
+  catchsql {
+    DROP TABLE t2
+  }
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+
+reset_db
+do_execsql_test 2.0 {
+  PRAGMA page_size = 512;
+  CREATE TABLE t1(a, b, c);
+}
+
+# Create a database with a schema so large that the root of the 
+# sqlite_schema table is the grandparent of its leaves.
+#
+set nView 1000
+do_test 2.1 {
+  execsql BEGIN
+  for {set ii 0} {$ii<$nView} {incr ii} {
+    execsql " CREATE VIEW v$ii AS SELECT a, b, c FROM t1 "
+  }
+  execsql COMMIT
+} {}
+db close
+
+proc get2byte {fd offset} {
+  seek $fd $offset
+  set bin [read $fd 2]
+  binary scan $bin S val
+  set val
+}
+proc get4byte {fd offset} {
+  seek $fd $offset
+  set bin [read $fd 4]
+  binary scan $bin I val
+  set val
+}
+proc put4byte {fd offset val} {
+  seek $fd $offset
+  set bin [binary format I $val]
+  puts -nonewline $fd $bin
+}
+
+# Page 1 is now the grandparent of its leaves. Corrupt the database by setting 
+# the second rightmost child page number of page 1 to 1.
+#
+set fd [open test.db r+]
+fconfigure $fd -translation binary
+set nChild [get2byte $fd 103]
+set offChild [get2byte $fd [expr 100+12+($nChild-2)*2]]
+set pgnoChild [get4byte $fd $offChild]
+put4byte $fd $offChild 1
+close $fd
+
+if {![info exists ::G(perm:presql)]} {
+  sqlite3 db test.db
+
+  do_catchsql_test 2.2 {
+    PRAGMA writable_schema = 1;
+    SELECT * FROM sqlite_schema;
+  } {1 {database disk image is malformed}}
+
+  do_test 2.3 {
+    list [catch {
+      for {set ii $nView} {$ii<$nView*2} {incr ii} {
+        execsql "INSERT INTO sqlite_master VALUES(1, 2, 3, 4, 5)"
+      }
+    } msg] $msg
+  } {1 {database disk image is malformed}}
+}
+
+finish_test
diff --git a/test/corrupt5.test b/test/corrupt5.test
new file mode 100644
index 0000000000000000000000000000000000000000..75097668c7e002e06b398ac08514caa937c9d8c7
--- /dev/null
+++ b/test/corrupt5.test
@@ -0,0 +1,50 @@
+# 2008 Jan 22
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to make sure SQLite does not crash or
+# segfault if it sees a corrupt database file.  Checks for 
+# malformed schema.
+#
+# $Id: corrupt5.test,v 1.3 2009/06/04 02:47:04 shane Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# These tests deal with corrupt database files
+#
+database_may_be_corrupt
+
+# We must have the page_size pragma for these tests to work.
+#
+ifcapable !pager_pragmas {
+  finish_test
+  return
+}
+
+# Create a database with a freelist containing at least two pages.
+#
+do_test corrupt5-1.1 {
+  sqlite3_db_config db DEFENSIVE 0
+  execsql {
+    CREATE TABLE t1(a,b,c);
+    CREATE INDEX i1 ON t1(a,b);
+    PRAGMA writable_schema=ON;
+    UPDATE sqlite_master SET name=NULL, sql=NULL WHERE name='i1';
+  }
+  db close
+  sqlite3 db test.db
+  catchsql {
+    SELECT * FROM t1
+  }
+} {1 {malformed database schema (?)}}
+
+finish_test
diff --git a/test/corrupt6.test b/test/corrupt6.test
new file mode 100644
index 0000000000000000000000000000000000000000..dd773c926502c457d69da3fcd24f5947fbddfd71
--- /dev/null
+++ b/test/corrupt6.test
@@ -0,0 +1,259 @@
+# 2008 May 6
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to make sure SQLite does not crash or
+# segfault if it sees a corrupt database file.  It specifically focuses
+# on corrupt SerialTypeLen values.
+#
+# $Id: corrupt6.test,v 1.2 2008/05/19 15:37:10 shane Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# This module uses hard-coded offsets which do not work if the reserved_bytes
+# value is nonzero.
+if {[nonzero_reserved_bytes]} {finish_test; return;}
+
+# These tests deal with corrupt database files
+#
+database_may_be_corrupt
+
+# We must have the page_size pragma for these tests to work.
+#
+ifcapable !pager_pragmas {
+  finish_test
+  return
+}
+
+# Create a simple, small database.
+#
+do_test corrupt6-1.1 {
+  execsql {
+    PRAGMA auto_vacuum=OFF;
+    PRAGMA page_size=1024;
+    CREATE TABLE t1(x);
+    INSERT INTO t1(x) VALUES('varint32-01234567890123456789012345678901234567890123456789');
+    INSERT INTO t1(x) VALUES('varint32-01234567890123456789012345678901234567890123456789');
+  }
+  file size test.db
+} [expr {1024*2}]
+
+# Verify that the file format is as we expect.  The page size
+# should be 1024 bytes.
+#
+do_test corrupt6-1.2 {
+  hexio_get_int [hexio_read test.db 16 2]
+} 1024   ;# The page size is 1024
+do_test corrupt6-1.3 {
+  hexio_get_int [hexio_read test.db 20 1]
+} 0      ;# Unused bytes per page is 0
+
+integrity_check corrupt6-1.4
+
+# Verify SerialTypeLen for first field of two records as we expect.
+# SerialTypeLen = (len*2+12) = 60*2+12 = 132
+do_test corrupt6-1.5.1 {
+  hexio_read test.db 1923 2
+} 8103      ;# First text field size is 81 03 == 131
+do_test corrupt6-1.5.2 {
+  hexio_read test.db 1987 2
+} 8103      ;# Second text field size is 81 03 == 131
+
+# Verify simple query results as expected.
+do_test corrupt6-1.6 {
+  db close
+  sqlite3 db test.db
+  catchsql {
+    SELECT substr(x,1,8) FROM t1
+  }
+} [list 0 {varint32 varint32} ]
+integrity_check corrupt6-1.7
+
+# Adjust value of record 1 / field 1 SerialTypeLen and see if the
+# corruption is detected.
+# Increase SerialTypeLen by 2.
+do_test corrupt6-1.8.1 {
+  db close
+  hexio_write test.db 1923 8105
+  sqlite3 db test.db
+  catchsql {
+    SELECT substr(x,1,8) FROM t1
+  }
+} [list 1 {database disk image is malformed}]
+
+# Adjust value of record 1 / field 1 SerialTypeLen and see if the
+# corruption is detected.
+# Decrease SerialTypeLen by 2.
+do_test corrupt6-1.8.2 {
+  db close
+  hexio_write test.db 1923 8101
+  sqlite3 db test.db
+  catchsql {
+    SELECT substr(x,1,8) FROM t1
+  }
+} [list 1 {database disk image is malformed}]
+
+# Put value of record 1 / field 1 SerialTypeLen back.
+do_test corrupt6-1.8.3 {
+  db close
+  hexio_write test.db 1923 8103
+  sqlite3 db test.db
+  catchsql {
+    SELECT substr(x,1,8) FROM t1
+  }
+} [list 0 {varint32 varint32} ]
+integrity_check corrupt6-1.8.4
+
+# Adjust value of record 2 / field 1 SerialTypeLen and see if the
+# corruption is detected.
+# Increase SerialTypeLen by 2.
+do_test corrupt6-1.9.1 {
+  db close
+  hexio_write test.db 1987 8105
+  sqlite3 db test.db
+  catchsql {
+    SELECT substr(x,1,8) FROM t1
+  }
+} [list 1 {database disk image is malformed}]
+
+# Adjust value of record 2 / field 2 SerialTypeLen and see if the
+# corruption is detected.
+# Decrease SerialTypeLen by 2.
+do_test corrupt6-1.9.2 {
+  db close
+  hexio_write test.db 1987 8101
+  sqlite3 db test.db
+  catchsql {
+    SELECT substr(x,1,8) FROM t1
+  }
+} [list 1 {database disk image is malformed}]
+
+# Put value of record 1 / field 2 SerialTypeLen back.
+do_test corrupt6-1.9.3 {
+  db close
+  hexio_write test.db 1987 8103
+  sqlite3 db test.db
+  catchsql {
+    SELECT substr(x,1,8) FROM t1
+  }
+} [list 0 {varint32 varint32} ]
+integrity_check corrupt6-1.9.4
+
+# Adjust value of record 1 / field 1 SerialTypeLen and see if the
+# corruption is detected.
+# Set SerialTypeLen to FF 7F (2 bytes)
+do_test corrupt6-1.10.1 {
+  db close
+  hexio_write test.db 1923 FF7F
+  sqlite3 db test.db
+  catchsql {
+    SELECT substr(x,1,8) FROM t1
+  }
+} [list 1 {database disk image is malformed}]
+
+# Adjust value of record 1 / field 1 SerialTypeLen and see if the
+# corruption is detected.
+# Set SerialTypeLen to FF FF 7F (3 bytes)
+do_test corrupt6-1.10.2 {
+  db close
+  hexio_write test.db 1923 FFFF7F
+  sqlite3 db test.db
+  catchsql {
+    SELECT substr(x,1,8) FROM t1
+  }
+} [list 1 {database disk image is malformed}]
+
+# Adjust value of record 1 / field 1 SerialTypeLen and see if the
+# corruption is detected.
+# Set SerialTypeLen to FF FF FF 7F (4 bytes)
+do_test corrupt6-1.10.3 {
+  db close
+  hexio_write test.db 1923 FFFFFF7F
+  sqlite3 db test.db
+  catchsql {
+    SELECT substr(x,1,8) FROM t1
+  }
+} [list 1 {database disk image is malformed}]
+
+# Adjust value of record 1 / field 1 SerialTypeLen and see if the
+# corruption is detected.
+# Set SerialTypeLen to FF FF FF FF 7F (5 bytes)
+do_test corrupt6-1.10.4 {
+  db close
+  hexio_write test.db 1923 FFFFFFFF7F
+  sqlite3 db test.db
+  catchsql {
+    SELECT substr(x,1,8) FROM t1
+  }
+} [list 1 {database disk image is malformed}]
+
+# Adjust value of record 1 / field 1 SerialTypeLen and see if the
+# corruption is detected.
+# Set SerialTypeLen to FF FF FF FF FF 7F (6 bytes, and overflows).
+do_test corrupt6-1.10.5 {
+  db close
+  hexio_write test.db 1923 FFFFFFFFFF7F
+  sqlite3 db test.db
+  catchsql {
+    SELECT substr(x,1,8) FROM t1
+  }
+} [list 1 {database disk image is malformed}]
+
+# Adjust value of record 1 / field 1 SerialTypeLen and see if the
+# corruption is detected.
+# Set SerialTypeLen to FF FF FF FF FF FF 7F (7 bytes, and overflows).
+do_test corrupt6-1.10.6 {
+  db close
+  hexio_write test.db 1923 FFFFFFFFFFFF7F
+  sqlite3 db test.db
+  catchsql {
+    SELECT substr(x,1,8) FROM t1
+  }
+} [list 1 {database disk image is malformed}]
+
+# Adjust value of record 1 / field 1 SerialTypeLen and see if the
+# corruption is detected.
+# Set SerialTypeLen to FF FF FF FF FF FF FF 7F (8 bytes, and overflows).
+do_test corrupt6-1.10.7 {
+  db close
+  hexio_write test.db 1923 FFFFFFFFFFFFFF7F
+  sqlite3 db test.db
+  catchsql {
+    SELECT substr(x,1,8) FROM t1
+  }
+} [list 1 {database disk image is malformed}]
+
+# Adjust value of record 1 / field 1 SerialTypeLen and see if the
+# corruption is detected.
+# Set SerialTypeLen to FF FF FF FF FF FF FF FF 7F (9 bytes, and overflows).
+do_test corrupt6-1.10.8 {
+  db close
+  hexio_write test.db 1923 FFFFFFFFFFFFFFFF7F
+  sqlite3 db test.db
+  catchsql {
+    SELECT substr(x,1,8) FROM t1
+  }
+} [list 1 {database disk image is malformed}]
+
+# Adjust value of record 1 / field 1 SerialTypeLen and see if the
+# corruption is detected.
+# Set SerialTypeLen to FFFF FF FF FF FF FF FF FF 7F (10 bytes, and overflows).
+do_test corrupt6-1.10.9 {
+  db close
+  hexio_write test.db 1923 FFFFFFFFFFFFFFFFFF7F
+  sqlite3 db test.db
+  catchsql {
+    SELECT substr(x,1,8) FROM t1
+  }
+} [list 1 {database disk image is malformed}]
+
+finish_test
diff --git a/test/corrupt7.test b/test/corrupt7.test
new file mode 100644
index 0000000000000000000000000000000000000000..b62515b7847b0b94a7ae49ba5f6541976a9c2aa0
--- /dev/null
+++ b/test/corrupt7.test
@@ -0,0 +1,112 @@
+# 2008 June 11
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to make sure SQLite does not crash or
+# segfault if it sees a corrupt database file.  It specifically focuses
+# on corrupt cell offsets in a btree page.
+#
+# $Id: corrupt7.test,v 1.8 2009/08/10 10:18:08 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# This module uses hard-coded offsets which do not work if the reserved_bytes
+# value is nonzero.
+if {[nonzero_reserved_bytes]} {finish_test; return;}
+
+# These tests deal with corrupt database files
+#
+database_may_be_corrupt
+
+# We must have the page_size pragma for these tests to work.
+#
+ifcapable !pager_pragmas {
+  finish_test
+  return
+}
+
+# Create a simple, small database.
+#
+do_test corrupt7-1.1 {
+  execsql {
+    PRAGMA auto_vacuum=OFF;
+    PRAGMA page_size=1024;
+    CREATE TABLE t1(x);
+    INSERT INTO t1(x) VALUES(1);
+    INSERT INTO t1(x) VALUES(2);
+    INSERT INTO t1(x) SELECT x+2 FROM t1;
+    INSERT INTO t1(x) SELECT x+4 FROM t1;
+    INSERT INTO t1(x) SELECT x+8 FROM t1;
+  }
+  file size test.db
+} [expr {1024*2}]
+
+# Verify that the file format is as we expect.  The page size
+# should be 1024 bytes.
+#
+do_test corrupt7-1.2 {
+  hexio_get_int [hexio_read test.db 16 2]
+} 1024   ;# The page size is 1024
+do_test corrupt7-1.3 {
+  hexio_get_int [hexio_read test.db 20 1]
+} 0      ;# Unused bytes per page is 0
+
+integrity_check corrupt7-1.4
+
+# Deliberately corrupt some of the cell offsets in the btree page
+# on page 2 of the database.
+do_test corrupt7-2.1 {
+  db close
+  hexio_write test.db 1062 FF
+  sqlite3 db test.db
+  db eval {PRAGMA integrity_check(1)}
+} {{*** in database main ***
+Tree 2 page 2 cell 15: Offset 65457 out of range 945..1020}}
+do_test corrupt7-2.2 {
+  db close
+  hexio_write test.db 1062 04
+  sqlite3 db test.db
+  db eval {PRAGMA integrity_check(1)}
+} {{*** in database main ***
+Tree 2 page 2 cell 15: Offset 1201 out of range 945..1020}}
+  
+# The code path that was causing the buffer overrun that this test
+# case was checking for was removed.
+#
+#do_test corrupt7-3.1 {
+#  execsql {
+#    DROP TABLE t1;
+#    CREATE TABLE t1(a, b);
+#    INSERT INTO t1 VALUES(1, 'one');
+#    INSERT INTO t1 VALUES(100, 'one hundred');
+#    INSERT INTO t1 VALUES(100000, 'one hundred thousand');
+#    CREATE INDEX i1 ON t1(b);
+#  }
+#  db close
+#
+#  # Locate the 3rd cell in the index.
+#  set cell_offset [hexio_get_int [hexio_read test.db [expr 1024*2 + 12] 2]]
+#  incr cell_offset [expr 1024*2]
+#  incr cell_offset 1
+#
+#  # This write corrupts the "header-size" field of the database record
+#  # stored in the index cell. At one point this was causing sqlite to 
+#  # reference invalid memory.
+#  hexio_write test.db $cell_offset FFFF7F
+#  
+#  sqlite3 db test.db
+#  catchsql {
+#    SELECT b FROM t1 WHERE b > 'o' AND b < 'p';
+#  }
+#} {1 {database disk image is malformed}}
+
+finish_test
diff --git a/test/corrupt8.test b/test/corrupt8.test
new file mode 100644
index 0000000000000000000000000000000000000000..d7bceba31c547b1d527cfcce5f8fe075da035a4c
--- /dev/null
+++ b/test/corrupt8.test
@@ -0,0 +1,108 @@
+# 2008 July 9
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to make sure SQLite does not crash or
+# segfault if it sees a corrupt database file.  It specifically focuses
+# on corrupt pointer map pages.
+#
+# $Id: corrupt8.test,v 1.2 2008/07/11 03:34:10 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Do not use a codec for tests in this file, as the database file is
+# manipulated directly using tcl scripts (using the [hexio_write] command).
+#
+do_not_use_codec
+
+# These tests deal with corrupt database files
+#
+database_may_be_corrupt
+
+# We must have the page_size pragma for these tests to work.
+#
+ifcapable !pager_pragmas||!autovacuum {
+  finish_test
+  return
+}
+
+# Create a database to work with.
+#
+do_test corrupt8-1.1 {
+  execsql {
+    PRAGMA auto_vacuum=1;
+    PRAGMA page_size=1024;
+    CREATE TABLE t1(x);
+    INSERT INTO t1(x) VALUES(1);
+    INSERT INTO t1(x) VALUES(2);
+    INSERT INTO t1(x) SELECT x+2 FROM t1;
+    INSERT INTO t1(x) SELECT x+4 FROM t1;
+    INSERT INTO t1(x) SELECT x+8 FROM t1;
+    INSERT INTO t1(x) SELECT x+16 FROM t1;
+    INSERT INTO t1(x) SELECT x+32 FROM t1;
+    INSERT INTO t1(x) SELECT x+64 FROM t1;
+    INSERT INTO t1(x) SELECT x+128 FROM t1;
+    INSERT INTO t1(x) SELECT x+256 FROM t1;
+    CREATE TABLE t2(a,b);
+    INSERT INTO t2 SELECT x, x*x FROM t1;
+  }
+  expr {[file size test.db]>1024*12}
+} {1}
+integrity_check corrupt8-1.2
+
+# Loop through each ptrmap entry.  Corrupt the entry and make sure the
+# corruption is detected by the integrity_check.
+#
+for {set i 1024} {$i<2048} {incr i 5} {
+  set oldval [hexio_read test.db $i 1]
+  if {$oldval==0} break
+  hexio_write test.db $i 00
+  do_test corrupt8-2.$i.0 {
+    db close
+    sqlite3 db test.db
+    set x [db eval {PRAGMA integrity_check}]
+    expr {$x!="ok"}
+  } {1}
+  for {set k 1} {$k<=5} {incr k} {
+    if {$k==$oldval} continue
+    hexio_write test.db $i 0$k
+    do_test corrupt8-2.$i.$k {
+      db close
+      sqlite3 db test.db
+      set x [db eval {PRAGMA integrity_check}]
+      expr {$x!="ok"}
+    } {1}
+  }
+  hexio_write test.db $i 06
+  do_test corrupt8-2.$i.6 {
+    db close
+    sqlite3 db test.db
+    set x [db eval {PRAGMA integrity_check}]
+    expr {$x!="ok"}
+  } {1}
+  hexio_write test.db $i $oldval
+  if {$oldval>2} {
+    set i2 [expr {$i+1+$i%4}]
+    set oldval [hexio_read test.db $i2 1]
+    hexio_write test.db $i2 [format %02x [expr {($oldval+1)&0xff}]]
+    do_test corrupt8-2.$i.7 {
+      db close
+      sqlite3 db test.db
+      set x [db eval {PRAGMA integrity_check}]
+      expr {$x!="ok"}
+    } {1}
+    hexio_write test.db $i2 $oldval
+  }
+}
+
+
+finish_test
diff --git a/test/corrupt9.test b/test/corrupt9.test
new file mode 100644
index 0000000000000000000000000000000000000000..bb37758b17b48f0aadc2ba3a3e31e48e13ecdba8
--- /dev/null
+++ b/test/corrupt9.test
@@ -0,0 +1,140 @@
+# 2008 July 9
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to make sure SQLite does not crash or
+# segfault if it sees a corrupt database file.  It specifically focuses
+# on corruption in the form of duplicate entries on the freelist.
+#
+# $Id: corrupt9.test,v 1.3 2009/06/04 02:47:04 shane Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Do not use a codec for tests in this file, as the database file is
+# manipulated directly using tcl scripts (using the [hexio_write] command).
+#
+do_not_use_codec
+
+# These tests deal with corrupt database files
+#
+database_may_be_corrupt
+
+# We must have the page_size pragma for these tests to work.
+#
+ifcapable !pager_pragmas {
+  finish_test
+  return
+}
+
+# Return the offset to the first (trunk) page of the freelist.  Return
+# zero of the freelist is empty.
+#
+proc freelist_trunk_offset {filename} {
+  if {[hexio_read $filename 36 4]==0} {return 0}
+  set pgno [hexio_get_int [hexio_read $filename 32 4]]
+  return [expr {($pgno-1)*[hexio_get_int [hexio_read $filename 16 2]]}]
+}
+
+# This procedure looks at the first trunk page of the freelist and
+# corrupts that page by overwriting up to N entries with duplicates
+# of the first entry.
+#
+proc corrupt_freelist {filename N} {
+  set offset [freelist_trunk_offset $filename]
+  if {$offset==0} {error "Freelist is empty"}
+  set cnt [hexio_get_int [hexio_read $filename [expr {$offset+4}] 4]]
+  set pgno [hexio_read $filename [expr {$offset+8}] 4]
+  for {set i 12} {$N>0 && $i<8+4*$cnt} {incr i 4; incr N -1} {
+    hexio_write $filename [expr {$offset+$i}] $pgno
+  }
+}
+
+# Create a database to work with.  Make sure there are plenty of
+# entries on the freelist.
+#
+do_test corrupt9-1.1 {
+  execsql {
+    PRAGMA auto_vacuum=NONE;
+    PRAGMA page_size=1024;
+    CREATE TABLE t1(x);
+    INSERT INTO t1(x) VALUES(1);
+    INSERT INTO t1(x) VALUES(2);
+    INSERT INTO t1(x) SELECT x+2 FROM t1;
+    INSERT INTO t1(x) SELECT x+4 FROM t1;
+    INSERT INTO t1(x) SELECT x+8 FROM t1;
+    INSERT INTO t1(x) SELECT x+16 FROM t1;
+    INSERT INTO t1(x) SELECT x+32 FROM t1;
+    INSERT INTO t1(x) SELECT x+64 FROM t1;
+    INSERT INTO t1(x) SELECT x+128 FROM t1;
+    INSERT INTO t1(x) SELECT x+256 FROM t1;
+    CREATE TABLE t2(a,b);
+    INSERT INTO t2 SELECT x, x*x FROM t1;
+    CREATE INDEX i1 ON t1(x);
+    CREATE INDEX i2 ON t2(b,a);
+    DROP INDEX i2;
+  }
+  expr {[file size test.db]>1024*24}
+} {1}
+integrity_check corrupt9-1.2
+
+# Corrupt the freelist by adding duplicate entries to the freelist.
+# Make sure the corruption is detected.
+#
+db close
+forcecopy test.db test.db-template
+
+corrupt_freelist test.db 1
+sqlite3 db test.db
+do_test corrupt9-2.1 {
+  set x [db eval {PRAGMA integrity_check}]
+  expr {$x!="ok"}
+} {1}
+do_test corrupt9-2.2 {
+  catchsql {
+    CREATE INDEX i2 ON t2(b,a);
+    REINDEX;
+  }
+} {1 {database disk image is malformed}}
+
+
+db close
+forcecopy test.db-template test.db
+corrupt_freelist test.db 2
+sqlite3 db test.db
+do_test corrupt9-3.1 {
+  set x [db eval {PRAGMA integrity_check}]
+  expr {$x!="ok"}
+} {1}
+do_test corrupt9-3.2 {
+  catchsql {
+    CREATE INDEX i2 ON t2(b,a);
+    REINDEX;
+  }
+} {1 {database disk image is malformed}}
+
+db close
+forcecopy test.db-template test.db
+corrupt_freelist test.db 3
+sqlite3 db test.db
+do_test corrupt9-4.1 {
+  set x [db eval {PRAGMA integrity_check}]
+  expr {$x!="ok"}
+} {1}
+do_test corrupt9-4.2 {
+  catchsql {
+    CREATE INDEX i2 ON t2(b,a);
+    REINDEX;
+  }
+} {1 {database disk image is malformed}}
+ 
+
+finish_test
diff --git a/test/corruptA.test b/test/corruptA.test
new file mode 100644
index 0000000000000000000000000000000000000000..12d918615fafd2aa5c0818283dbb83f906ef1c2f
--- /dev/null
+++ b/test/corruptA.test
@@ -0,0 +1,83 @@
+# 2008 July 11
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to make sure SQLite does not crash or
+# segfault if it sees a corrupt database file.  It specifically focuses
+# on corrupt database headers.
+#
+# $Id: corruptA.test,v 1.1 2008/07/11 16:39:23 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Do not use a codec for tests in this file, as the database file is
+# manipulated directly using tcl scripts (using the [hexio_write] command).
+#
+do_not_use_codec
+
+# These tests deal with corrupt database files
+#
+database_may_be_corrupt
+
+
+# Create a database to work with.
+#
+do_test corruptA-1.1 {
+  execsql {
+    CREATE TABLE t1(x);
+    INSERT INTO t1(x) VALUES(1);
+  }
+  expr {[file size test.db]>=1024}
+} {1}
+integrity_check corruptA-1.2
+
+# Corrupt the file header in various ways and make sure the corruption
+# is detected when opening the database file.
+#
+db close
+forcecopy test.db test.db-template
+
+set unreadable_version 02
+ifcapable wal { set unreadable_version 03 }
+do_test corruptA-2.1 {
+  forcecopy test.db-template test.db
+  hexio_write test.db 19 $unreadable_version   ;# the read format number
+  sqlite3 db test.db
+  catchsql {SELECT * FROM t1}  
+} {1 {file is not a database}}
+ 
+do_test corruptA-2.2 {
+  db close
+  forcecopy test.db-template test.db
+  hexio_write test.db 21 41   ;# max embedded payload fraction
+  sqlite3 db test.db
+  catchsql {SELECT * FROM t1}  
+} {1 {file is not a database}}
+ 
+do_test corruptA-2.3 {
+  db close
+  forcecopy test.db-template test.db
+  hexio_write test.db 22 1f   ;# min embedded payload fraction
+  sqlite3 db test.db
+  catchsql {SELECT * FROM t1}  
+} {1 {file is not a database}}
+ 
+do_test corruptA-2.4 {
+  db close
+  forcecopy test.db-template test.db
+  hexio_write test.db 23 21   ;# min leaf payload fraction
+  sqlite3 db test.db
+  catchsql {SELECT * FROM t1}  
+} {1 {file is not a database}}
+ 
+
+finish_test
diff --git a/test/corruptB.test b/test/corruptB.test
new file mode 100644
index 0000000000000000000000000000000000000000..c51cb5768026d0698b6d2d24211bdc8c3ed9d53b
--- /dev/null
+++ b/test/corruptB.test
@@ -0,0 +1,193 @@
+# 2008 Sep 10
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to make sure SQLite does not crash or
+# segfault if it sees a corrupt database file.  It specifically focuses
+# on loops in the B-Tree structure. A loop is formed in a B-Tree structure
+# when there exists a page that is both an a descendent or ancestor of
+# itself.
+#
+# Also test that an SQLITE_CORRUPT error is returned if a B-Tree page
+# contains a (corrupt) reference to a page greater than the configured
+# maximum page number.
+#
+# $Id: corruptB.test,v 1.4 2009/07/21 19:25:24 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Do not use a codec for tests in this file, as the database file is
+# manipulated directly using tcl scripts (using the [hexio_write] command).
+#
+do_not_use_codec
+
+# These tests deal with corrupt database files
+#
+database_may_be_corrupt
+
+
+do_test corruptB-1.1 {
+  execsql {
+    PRAGMA auto_vacuum = 1;
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(randomblob(200));
+    INSERT INTO t1 SELECT randomblob(200) FROM t1;
+    INSERT INTO t1 SELECT randomblob(200) FROM t1;
+    INSERT INTO t1 SELECT randomblob(200) FROM t1;
+    INSERT INTO t1 SELECT randomblob(200) FROM t1;
+    INSERT INTO t1 SELECT randomblob(200) FROM t1;
+  }
+  expr {[file size test.db] > (1024*9)}
+} {1}
+integrity_check corruptB-1.2
+
+forcecopy test.db bak.db
+
+# Set the right-child of a B-Tree rootpage to refer to the root-page itself.
+#
+do_test corruptB-1.3.1 {
+  set ::root [execsql {SELECT rootpage FROM sqlite_master}]
+  set ::offset [expr {($::root-1)*1024}]
+  hexio_write test.db [expr $offset+8] [hexio_render_int32 $::root]
+} {4}
+do_test corruptB-1.3.2 {
+  sqlite3 db test.db
+  catchsql { SELECT * FROM t1 }
+} {1 {database disk image is malformed}}
+
+# Set the left-child of a cell in a B-Tree rootpage to refer to the 
+# root-page itself.
+#
+do_test corruptB-1.4.1 {
+  db close
+  forcecopy bak.db test.db
+  set cell_offset [hexio_get_int [hexio_read test.db [expr $offset+12] 2]]
+  hexio_write test.db [expr $offset+$cell_offset] [hexio_render_int32 $::root]
+} {4}
+do_test corruptB-1.4.2 {
+  sqlite3 db test.db
+  catchsql { SELECT * FROM t1 }
+} {1 {database disk image is malformed}}
+
+# Now grow the table B-Tree so that it is more than 2 levels high.
+#
+do_test corruptB-1.5.1 {
+  db close
+  forcecopy bak.db test.db
+  sqlite3 db test.db
+  execsql {
+    INSERT INTO t1 SELECT randomblob(200) FROM t1;
+    INSERT INTO t1 SELECT randomblob(200) FROM t1;
+    INSERT INTO t1 SELECT randomblob(200) FROM t1;
+    INSERT INTO t1 SELECT randomblob(200) FROM t1;
+    INSERT INTO t1 SELECT randomblob(200) FROM t1;
+    INSERT INTO t1 SELECT randomblob(200) FROM t1;
+    INSERT INTO t1 SELECT randomblob(200) FROM t1;
+  }
+} {}
+
+forcecopy test.db bak.db
+
+# Set the right-child pointer of the right-child of the root page to point
+# back to the root page.
+#
+do_test corruptB-1.6.1 {
+  db close
+  set iRightChild [hexio_get_int [hexio_read test.db [expr $offset+8] 4]]
+  set c_offset [expr ($iRightChild-1)*1024]
+  hexio_write test.db [expr $c_offset+8] [hexio_render_int32 $::root]
+} {4}
+do_test corruptB-1.6.2 {
+  sqlite3 db test.db
+  catchsql { SELECT * FROM t1 }
+} {1 {database disk image is malformed}}
+
+# Set the left-child pointer of a cell of the right-child of the root page to
+# point back to the root page.
+#
+do_test corruptB-1.7.1 {
+  db close
+  forcecopy bak.db test.db
+  set cell_offset [hexio_get_int [hexio_read test.db [expr $c_offset+12] 2]]
+  hexio_write test.db [expr $c_offset+$cell_offset] [hexio_render_int32 $::root]
+} {4}
+do_test corruptB-1.7.2 {
+  sqlite3 db test.db
+  catchsql { SELECT * FROM t1 }
+} {1 {database disk image is malformed}}
+
+do_test corruptB-1.8.1 {
+  db close
+  set cell_offset [hexio_get_int [hexio_read test.db [expr $offset+12] 2]]
+  set iLeftChild [
+      hexio_get_int [hexio_read test.db [expr $offset+$cell_offset] 4]
+  ]
+  set c_offset [expr ($iLeftChild-1)*1024]
+  hexio_write test.db [expr $c_offset+8] [hexio_render_int32 $::root]
+} {4}
+do_test corruptB-1.8.2 {
+  sqlite3 db test.db
+  catchsql { SELECT * FROM t1 }
+} {1 {database disk image is malformed}}
+
+# Set the left-child pointer of a cell of the right-child of the root page to
+# point back to the root page.
+#
+do_test corruptB-1.9.1 {
+  db close
+  forcecopy bak.db test.db
+  set cell_offset [hexio_get_int [hexio_read test.db [expr $c_offset+12] 2]]
+  hexio_write test.db [expr $c_offset+$cell_offset] [hexio_render_int32 $::root]
+} {4}
+do_test corruptB-1.9.2 {
+  sqlite3 db test.db
+  catchsql { SELECT * FROM t1 }
+} {1 {database disk image is malformed}}
+
+#---------------------------------------------------------------------------
+
+do_test corruptB-2.1.1 {
+  db close
+  forcecopy bak.db test.db
+  hexio_write test.db [expr $offset+8] [hexio_render_int32 0x6FFFFFFF]
+} {4}
+do_test corruptB-2.1.2 {
+  sqlite3 db test.db
+  catchsql { SELECT * FROM t1 }
+} {1 {database disk image is malformed}}
+
+#---------------------------------------------------------------------------
+
+# Corrupt the header-size field of a database record.
+#
+do_test corruptB-3.1.1 {
+  db close
+  forcecopy bak.db test.db
+  sqlite3 db test.db
+  set v [string repeat abcdefghij 200]
+  execsql {
+    CREATE TABLE t2(a);
+    INSERT INTO t2 VALUES($v);
+  }
+  set t2_root [execsql {SELECT rootpage FROM sqlite_master WHERE name = 't2'}]
+  set iPage [expr ($t2_root-1)*1024]
+  set iCellarray [expr $iPage + 8]
+  set iRecord [hexio_get_int [hexio_read test.db $iCellarray 2]]
+  db close
+  hexio_write test.db [expr $iPage+$iRecord+3] FF00
+} {2}
+do_test corruptB-3.1.2 {
+  sqlite3 db test.db
+  catchsql { SELECT * FROM t2 }
+} {1 {database disk image is malformed}}
+
+finish_test
diff --git a/test/corruptC.test b/test/corruptC.test
new file mode 100644
index 0000000000000000000000000000000000000000..bf324c120f7d90b761b6c76ce87769b4cc0de70e
--- /dev/null
+++ b/test/corruptC.test
@@ -0,0 +1,428 @@
+# 2004 August 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to make sure SQLite does not crash or
+# segfault if it sees a corrupt database file.  It creates a base
+# data base file, then tests that single byte corruptions in 
+# increasingly larger quantities are handled gracefully.
+#
+# $Id: corruptC.test,v 1.14 2009/07/11 06:55:34 danielk1977 Exp $
+
+catch {forcedelete test.db test.db-journal test.bu}
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Do not use a codec for tests in this file, as the database file is
+# manipulated directly using tcl scripts (using the [hexio_write] command).
+#
+do_not_use_codec
+
+# These tests deal with corrupt database files
+#
+database_may_be_corrupt
+
+# Construct a compact, dense database for testing.
+#
+do_test corruptC-1.1 {
+  sqlite3_db_config db LEGACY_FILE_FORMAT 1
+  execsql {
+    PRAGMA auto_vacuum = 0;
+    BEGIN;
+    CREATE TABLE t1(x,y);
+    INSERT INTO t1 VALUES(1,1);
+    INSERT OR IGNORE INTO t1 SELECT x*2,y FROM t1;
+    INSERT OR IGNORE INTO t1 SELECT x*3,y FROM t1;
+    INSERT OR IGNORE INTO t1 SELECT x*5,y FROM t1;
+    INSERT OR IGNORE INTO t1 SELECT x*7,y FROM t1;
+    INSERT OR IGNORE INTO t1 SELECT x*11,y FROM t1;
+    INSERT OR IGNORE INTO t1 SELECT x*13,y FROM t1;
+    CREATE INDEX t1i1 ON t1(x);
+    CREATE TABLE t2 AS SELECT x,2 as y FROM t1 WHERE rowid%5!=0;
+    COMMIT;
+  }
+} {}
+
+ifcapable {integrityck} {
+  integrity_check corruptC-1.2
+}
+
+# Generate random integer
+#
+proc random {range} {
+  return [expr {round(rand()*$range)}]
+}
+
+# Setup for the tests.  Make a backup copy of the good database in test.bu.
+#
+db close
+forcecopy test.db test.bu
+sqlite3 db test.db
+set fsize [file size test.db]
+
+# Set a quasi-random random seed. 
+if {[info exists ::G(issoak)]} {
+  # If we are doing SOAK tests, we want a different
+  # random seed for each run.  Ideally we would like 
+  # to use [clock clicks] or something like that here.
+  set qseed [file mtime test.db]
+} else {
+  # If we are not doing soak tests,
+  # make it repeatable.
+  set qseed 0
+}
+expr srand($qseed)
+
+#
+# First test some specific corruption tests found from earlier runs
+# with specific seeds.
+#
+
+# test that a corrupt content offset size is handled (seed 5577)
+do_test corruptC-2.1 {
+  db close
+  forcecopy test.bu test.db
+
+  # insert corrupt byte(s)
+  hexio_write test.db 2053 [format %02x 0x04]
+
+  sqlite3 db test.db
+  catchsql {PRAGMA integrity_check}
+} {0 {{*** in database main ***
+Tree 3 page 3: free space corruption} {wrong # of entries in index t1i1}}}
+
+# test that a corrupt content offset size is handled (seed 5649)
+#
+# Update 2016-12-27:  As of check-in [0b86fbca66] "In sqlite3BtreeInsert() when
+# replacing a re-existing row, try to overwrite the cell directly rather than
+# deallocate and reallocate the cell" on 2016-12-09, this test case no longer
+# detects the offset size problem during the UPDATE.  We have to run a subsequent
+# integrity_check to see it.
+do_test corruptC-2.2 {
+  db close
+  forcecopy test.bu test.db
+
+  # insert corrupt byte(s)
+  hexio_write test.db 27   [format %02x 0x08]
+  hexio_write test.db 233  [format %02x 0x6a]
+  hexio_write test.db 328  [format %02x 0x67]
+  hexio_write test.db 750  [format %02x 0x1f]
+  hexio_write test.db 1132 [format %02x 0x52]
+  hexio_write test.db 1133 [format %02x 0x84]
+  hexio_write test.db 1220 [format %02x 0x01]
+  hexio_write test.db 3688 [format %02x 0xc1]
+  hexio_write test.db 3714 [format %02x 0x58]
+  hexio_write test.db 3746 [format %02x 0x9a]
+
+  sqlite3 db test.db
+  db eval {UPDATE t1 SET y=1}
+  db eval {PRAGMA integrity_check}
+} {/Offset .* out of range/}
+
+# test that a corrupt free cell size is handled (seed 13329)
+do_test corruptC-2.3 {
+  db close
+  forcecopy test.bu test.db
+
+  # insert corrupt byte(s)
+  hexio_write test.db 1094 [format %02x 0x76]
+
+  sqlite3 db test.db
+  catchsql {UPDATE t1 SET y=1}
+} {1 {database disk image is malformed}}
+
+# test that a corrupt free cell size is handled (seed 169571)
+do_test corruptC-2.4 {
+  db close
+  forcecopy test.bu test.db
+
+  # insert corrupt byte(s)
+  hexio_write test.db 3119 [format %02x 0xdf]
+
+  sqlite3 db test.db
+  catchsql {UPDATE t2 SET y='abcdef-uvwxyz'}
+} {1 {database disk image is malformed}}
+
+# test that a corrupt free cell size is handled (seed 169571)
+do_test corruptC-2.5 {
+  db close
+  forcecopy test.bu test.db
+
+  # insert corrupt byte(s)
+  hexio_write test.db 3119 [format %02x 0xdf]
+  hexio_write test.db 4073 [format %02x 0xbf]
+
+  sqlite3 db test.db
+  catchsql {BEGIN; UPDATE t2 SET y='abcdef-uvwxyz'; ROLLBACK;}
+  catchsql {PRAGMA integrity_check}
+} {0 {{*** in database main ***
+Tree 4 page 4 cell 19: Extends off end of page} {database disk image is malformed}}}
+
+# {0 {{*** in database main ***
+# Corruption detected in cell 710 on page 4
+# Multiple uses for byte 661 of page 4
+# Fragmented space is 249 byte reported as 21 on page 4}}}
+
+# test that a corrupt free cell size is handled (seed 169595)
+do_test corruptC-2.6 {
+  db close
+  forcecopy test.bu test.db
+
+  # insert corrupt byte(s)
+  hexio_write test.db 619 [format %02x 0xe2]
+  hexio_write test.db 3150 [format %02x 0xa8]
+
+  sqlite3 db test.db
+  catchsql {BEGIN; UPDATE t2 SET y='abcdef-uvwxyz'; ROLLBACK;}
+} {1 {database disk image is malformed}}
+
+# corruption (seed 178692)
+do_test corruptC-2.7 {
+  db close
+  forcecopy test.bu test.db
+
+  # insert corrupt byte(s)
+  hexio_write test.db 3074 [format %02x 0xa0]
+
+  sqlite3 db test.db
+  catchsql {BEGIN; UPDATE t2 SET y='abcdef-uvwxyz'; ROLLBACK;}
+} {1 {database disk image is malformed}}
+
+
+# corruption (seed 179069)
+# Obsolete.  With single-pass DELETE the corruption in the
+# main database is not detected.
+if 0 {
+do_test corruptC-2.8 {
+  db close
+  forcecopy test.bu test.db
+
+  # insert corrupt byte(s)
+  hexio_write test.db 1393 [format %02x 0x7d]
+  hexio_write test.db 84 [format %02x 0x19]
+  hexio_write test.db 3287 [format %02x 0x3b]
+  hexio_write test.db 2564 [format %02x 0xed]
+  hexio_write test.db 2139 [format %02x 0x55]
+
+  sqlite3 db test.db
+  catchsql {BEGIN; DELETE FROM t1 WHERE x>13; ROLLBACK;}
+} {1 {database disk image is malformed}}
+}
+
+# corruption (seed 170434)
+#
+# UPDATE: Prior to 3.8.2, this used to return SQLITE_CORRUPT. It no longer
+# does. That is Ok, the point of these tests is to verify that no buffer
+# overruns or overreads can be caused by corrupt databases.
+do_test corruptC-2.9 {
+  db close
+  forcecopy test.bu test.db
+
+  # insert corrupt byte(s)
+  hexio_write test.db 2095 [format %02x 0xd6]
+
+  sqlite3 db test.db
+  catchsql {BEGIN; DELETE FROM t1 WHERE x>13; ROLLBACK;}
+} {0 {}}
+
+# corruption (seed 186504)
+do_test corruptC-2.10 {
+  db close
+  forcecopy test.bu test.db
+
+  # insert corrupt byte(s)
+  hexio_write test.db 3130 [format %02x 0x02]
+  
+  sqlite3 db test.db
+  catchsql {BEGIN; UPDATE t2 SET y='abcdef-uvwxyz'; ROLLBACK;}
+} {1 {database disk image is malformed}}
+
+# corruption (seed 1589)
+do_test corruptC-2.11 {
+  db close
+  forcecopy test.bu test.db
+
+  # insert corrupt byte(s)
+  hexio_write test.db 55 [format %02x 0xa7]
+  
+  sqlite3 db test.db
+  catchsql {BEGIN; CREATE TABLE t3 AS SELECT x,3 as y FROM t2 WHERE rowid%5!=0; ROLLBACK;}
+} {1 {database disk image is malformed}}
+
+# corruption (seed 14166)
+do_test corruptC-2.12 {
+  db close
+  forcecopy test.bu test.db
+
+  # insert corrupt byte(s)
+  hexio_write test.db 974 [format %02x 0x2e]
+  
+  sqlite3 db test.db
+  catchsql {SELECT count(*) FROM sqlite_master;}
+} {1 {malformed database schema (t1i1) - corrupt database}}
+
+# corruption (seed 218803)
+do_test corruptC-2.13 {
+  db close
+  forcecopy test.bu test.db
+
+  # insert corrupt byte(s)
+  hexio_write test.db 102 [format %02x 0x12]
+  
+  sqlite3 db test.db
+  catchsql {BEGIN; CREATE TABLE t3 AS SELECT x,3 as y FROM t2 WHERE rowid%5!=0; ROLLBACK;}
+} {1 {database disk image is malformed}}
+
+do_test corruptC-2.14 {
+  db close
+  forcecopy test.bu test.db
+
+  sqlite3 db test.db
+  set blob [string repeat abcdefghij 10000]
+  execsql { INSERT INTO t1 VALUES (1, $blob) }
+
+  sqlite3 db test.db
+  set filesize [file size test.db]
+  hexio_write test.db [expr $filesize-2048] 00000001
+  catchsql {DELETE FROM t1 WHERE rowid = (SELECT max(rowid) FROM t1)}
+} {1 {database disk image is malformed}}
+
+# At one point this particular corrupt database was causing a buffer
+# overread. Which caused a crash in a run of all.test once.
+#
+do_test corruptC-2.15 {
+  db close
+  forcecopy test.bu test.db
+  hexio_write test.db 986 b9
+  sqlite3 db test.db
+  catchsql {SELECT count(*) FROM sqlite_master;}
+} {1 {database disk image is malformed}}
+
+#
+# Now test for a series of quasi-random seeds.
+# We loop over the entire file size and touch
+# each byte at least once.
+for {set tn 0} {$tn<$fsize} {incr tn 1} {
+
+  # setup for test
+  db close
+  forcecopy test.bu test.db
+  sqlite3 db test.db
+
+  # Seek to a random location in the file, and write a random single byte
+  # value.  Then do various operations on the file to make sure that
+  # the database engine can handle the corruption gracefully.
+  #
+  set last 0
+  for {set i 1} {$i<=512 && !$last} {incr i 1} {
+
+    db close
+    if {$i==1} {
+      # on the first corrupt value, use location $tn
+      # this ensures that we touch each location in the 
+      # file at least once.
+      set roffset $tn
+    } else { 
+      # insert random byte at random location
+      set roffset [random $fsize]
+    }
+    set rbyte [format %02x [random 255]]
+
+    # You can uncomment the following to have it trace
+    # exactly how it's corrupting the file.  This is 
+    # useful for generating the "seed specific" tests
+    # above.
+    # set rline "$roffset $rbyte"
+    # puts stdout $rline
+
+    hexio_write test.db $roffset $rbyte
+    sqlite3 db test.db
+
+    # do a few random operations to make sure that if 
+    # they error, they error gracefully instead of crashing.
+    do_test corruptC-3.$tn.($qseed).$i.1 {
+      catchsql {SELECT count(*) FROM sqlite_master}
+      set x {}
+    } {}
+    do_test corruptC-3.$tn.($qseed).$i.2 {
+      catchsql {SELECT count(*) FROM t1}
+      set x {}
+    } {}
+    do_test corruptC-3.$tn.($qseed).$i.3 {
+      catchsql {SELECT count(*) FROM t1 WHERE x>13}
+      set x {}
+    } {}
+    do_test corruptC-3.$tn.($qseed).$i.4 {
+      catchsql {SELECT count(*) FROM t2}
+      set x {}
+    } {}
+    do_test corruptC-3.$tn.($qseed).$i.5 {
+      catchsql {SELECT count(*) FROM t2 WHERE x<13}
+      set x {}
+    } {}
+    do_test corruptC-3.$tn.($qseed).$i.6 {
+      catchsql {BEGIN; UPDATE t1 SET y=1; ROLLBACK;}
+      set x {}
+    } {}
+    do_test corruptC-3.$tn.($qseed).$i.7 {
+      catchsql {BEGIN; UPDATE t2 SET y='abcdef-uvwxyz'; ROLLBACK;}
+      set x {}
+    } {}
+    do_test corruptC-3.$tn.($qseed).$i.8 {
+      catchsql {BEGIN; DELETE FROM t1 WHERE x>13; ROLLBACK;}
+      set x {}
+    } {}
+    do_test corruptC-3.$tn.($qseed).$i.9 {
+      catchsql {BEGIN; DELETE FROM t2 WHERE x<13; ROLLBACK;}
+      set x {}
+    } {}
+    do_test corruptC-3.$tn.($qseed).$i.10 {
+      catchsql {BEGIN; CREATE TABLE t3 AS SELECT x,3 as y FROM t2 WHERE rowid%5!=0; ROLLBACK;}
+      set x {}
+    } {}
+
+    # check the integrity of the database.
+    # once the corruption is detected, we can stop.
+    ifcapable {integrityck} {
+      set res [ catchsql {PRAGMA integrity_check} ]
+      set ans [lindex $res 1]
+      if { [ string compare $ans "ok" ] != 0 } {
+        set last -1
+      }
+    }
+    # if we are not capable of doing an integrity check,
+    # stop after corrupting 5 bytes.
+    ifcapable {!integrityck} {
+      if { $i > 5 } {
+        set last -1
+      }
+    }
+
+    # Check that no page references were leaked.
+    # TBD:  need to figure out why this doesn't work
+    # work with ROLLBACKs...
+    if {0} {
+      do_test corruptC-3.$tn.($qseed).$i.11 {
+        set bt [btree_from_db db]
+        db_enter db
+        array set stats [btree_pager_stats $bt]
+        db_leave db
+        set stats(ref)
+      } {0}
+    }
+  }
+  # end for i
+
+}
+# end for tn
+
+finish_test
diff --git a/test/corruptD.test b/test/corruptD.test
new file mode 100644
index 0000000000000000000000000000000000000000..381e52c8083a44479d354ee19038659e04166846
--- /dev/null
+++ b/test/corruptD.test
@@ -0,0 +1,145 @@
+# 2009 June 3
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# $Id: corruptD.test,v 1.2 2009/06/05 17:09:12 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Do not use a codec for tests in this file, as the database file is
+# manipulated directly using tcl scripts (using the [hexio_write] command).
+#
+do_not_use_codec
+
+# These tests deal with corrupt database files
+#
+database_may_be_corrupt
+
+#--------------------------------------------------------------------------
+# OVERVIEW
+#
+#   This test file attempts to verify that SQLite does not read past the 
+#   end of any in-memory buffers as a result of corrupted database page 
+#   images. Usually this happens because a field within a database page
+#   that contains an offset to some other structure within the same page
+#   is set to too large a value. A database page contains the following
+#   such fields:
+#
+#     1. The page header field that contains the offset to the first 
+#        free block of space.
+#
+#     2. The first two bytes of all but the last free block on the free-block
+#        list (the offset to the next free block).
+#
+#     3. The page header field containing the number of cells on the page
+#        (implicitly defines the offset to the final element in the cell offset
+#        array, which could potentially be off the end of the page).
+#
+#     4. The page header field containing the offset to the start of the cell
+#        content area.
+#
+#     5. The contents of the cell offset array.
+#
+#     6. The first few bytes of each cell determine the size of the cell
+#        stored within the page, and hence the offset to the final byte of
+#        the cell.
+#
+#   If any of the above fields are set to too large a value, then a buffer
+#   overread may occur. This test script creates and operates on various
+#   strategically corrupted database files to attempt to provoke such buffer
+#   overreads.
+#
+#   Very often, a buffer overread passes unnoticed, particularly in workstation
+#   environments. For this reason, this test script should be run using valgrind
+#   (or similar) in order to verify that no overreads occur.
+#
+# TEST PLAN
+# 
+#   Test cases corruptD-1.* are white-box tests. They attempt to corrupt
+#   one of the above fields, then exercise each part of the code in btree.c
+#   that uses said field.
+#   
+#   Offset variables 1, 2, 3 and 4 are all checked to make sure they
+#   will not result in buffer overruns as part of page initialization in
+#   sqlite3BtreeInitPage(). Offsets 5 and 6 cannot be tested as part of
+#   page initialization, as trying to do so causes a performance hit.
+#
+
+do_test corruptD-1.0 {
+  execsql { 
+    PRAGMA auto_vacuum = 0;
+    PRAGMA page_size = 1024;
+    CREATE TABLE t1(a, b);
+    CREATE INDEX i1 ON t1(a, b);
+  }
+  for {set ii 1} {$ii < 50} {incr ii} {
+    execsql { INSERT INTO t1 VALUES($ii, $ii * $ii) }
+  }
+  execsql {
+    DELETE FROM t1 WHERE a = 10;
+    DELETE FROM t1 WHERE a = 20;
+    DELETE FROM t1 WHERE a = 30;
+    DELETE FROM t1 WHERE a = 40;
+  }
+  forcecopy test.db test.bu
+} {}
+
+proc incr_change_counter {} {
+  hexio_write test.db 24 [
+    hexio_render_int32 [expr [hexio_get_int [hexio_read test.db 24 4]] + 1]
+  ]
+}
+
+proc restore_file {} {
+  db close
+  forcecopy test.bu test.db
+  sqlite3 db test.db
+}
+
+#-------------------------------------------------------------------------
+# The following tests, corruptD-1.1.*, focus on the page header field
+# containing the offset of the first free block in a page. 
+#
+do_test corruptD-1.1.1 {
+  incr_change_counter
+  hexio_write test.db [expr 1024+1] FFFF
+  catchsql { PRAGMA quick_check }
+} {0 {{*** in database main ***
+Tree 2 page 2: free space corruption} {wrong # of entries in index i1}}}
+do_test corruptD-1.1.2 {
+  incr_change_counter
+  hexio_write test.db [expr 1024+1] [hexio_render_int32 1021]
+  catchsql { SELECT * FROM t1 ORDER BY rowid }
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+# The following tests, corruptD-1.2.*, focus on the offsets contained
+# in the first 2 byte of each free-block on the free-list.
+#
+do_test corruptD-1.2.1 {
+  restore_file
+} {}
+do_test corruptD-1.2.2 {
+} {}
+
+#-------------------------------------------------------------------------
+# The following tests, corruptD-1.4.*, ...
+#
+
+
+#-------------------------------------------------------------------------
+# The following tests, corruptD-1.5.*, focus on the offsets contained
+# in the cell offset array.
+# 
+#   defragmentPage
+#
+
+finish_test
diff --git a/test/corruptE.test b/test/corruptE.test
new file mode 100644
index 0000000000000000000000000000000000000000..8c55623ea4fbdee8c02a8ed9d38c7fcfcbc38967
--- /dev/null
+++ b/test/corruptE.test
@@ -0,0 +1,152 @@
+# 2010 February 18
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to make sure SQLite does not crash or
+# segfault if it sees a corrupt database file.  It specifcally
+# focuses on rowid order corruption.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# This module uses hard-coded offsets which do not work if the reserved_bytes
+# value is nonzero.
+if {[nonzero_reserved_bytes]} {finish_test; return;}
+
+# These tests deal with corrupt database files
+#
+database_may_be_corrupt
+
+# Do not run the tests in this file if ENABLE_OVERSIZE_CELL_CHECK is on.
+#
+ifcapable oversize_cell_check {
+  finish_test
+  return
+}
+
+# Construct a compact, dense database for testing.
+#
+do_test corruptE-1.1 {
+  sqlite3_db_config db LEGACY_FILE_FORMAT 1
+  execsql {
+    PRAGMA auto_vacuum = 0;
+    BEGIN;
+    CREATE TABLE t1(x,y);
+    INSERT INTO t1 VALUES(1,1);
+    INSERT OR IGNORE INTO t1 SELECT x*2,y FROM t1;
+    INSERT OR IGNORE INTO t1 SELECT x*3,y FROM t1;
+    INSERT OR IGNORE INTO t1 SELECT x*5,y FROM t1;
+    INSERT OR IGNORE INTO t1 SELECT x*7,y FROM t1;
+    INSERT OR IGNORE INTO t1 SELECT x*11,y FROM t1;
+    INSERT OR IGNORE INTO t1 SELECT x*13,y FROM t1;
+    INSERT OR IGNORE INTO t1 SELECT x*17,y FROM t1;
+    INSERT OR IGNORE INTO t1 SELECT x*19,y FROM t1;
+    CREATE INDEX t1i1 ON t1(x);
+    CREATE TABLE t2 AS SELECT x,2 as y FROM t1 WHERE rowid%5!=0 ORDER BY rowid;
+    COMMIT;
+  }
+} {}
+
+ifcapable {integrityck} {
+  integrity_check corruptE-1.2
+}
+
+# Setup for the tests.  Make a backup copy of the good database in test.bu.
+#
+db close
+forcecopy test.db test.bu
+sqlite3 db test.db
+set fsize [file size test.db]
+
+
+do_test corruptE-2.1 {
+  db close
+  forcecopy test.bu test.db
+
+  # insert corrupt byte(s)
+  hexio_write test.db 2041 [format %02x 0x2e]
+
+  sqlite3 db test.db
+
+  catchsql {PRAGMA integrity_check}
+} {/ out of order/}
+
+do_test corruptE-2.2 {
+  db close
+  forcecopy test.bu test.db
+
+  # insert corrupt byte(s)
+  hexio_write test.db 2047 [format %02x 0x84]
+
+  sqlite3 db test.db
+
+  catchsql {PRAGMA integrity_check}
+} {/ Extends off end of page/}
+
+do_test corruptE-2.3 {
+  db close
+  forcecopy test.bu test.db
+
+  # insert corrupt byte(s)
+  hexio_write test.db 7420 [format %02x 0xa8]
+  hexio_write test.db 10459 [format %02x 0x8d]
+
+  sqlite3 db test.db
+
+  catchsql {PRAGMA integrity_check}
+} {/out of order/}
+
+do_test corruptE-2.4 {
+  db close
+  forcecopy test.bu test.db
+
+  # insert corrupt byte(s)
+  hexio_write test.db 10233 [format %02x 0xd0]
+
+  sqlite3 db test.db
+
+  catchsql {PRAGMA integrity_check}
+} {/out of order/}
+
+
+set tests [list {10233 0xd0} \
+                {941 0x42} \
+                {2041 0xd0} \
+                {2042 0x1f} \
+                {2274 0x75} \
+                {3267 0xf2} \
+                {5113 0x36} \
+                {10233 0x84} \
+                {10234 0x74} \
+                {10239 0x41} \
+                {11273 0x28} \
+                {11461 0xe6} \
+                {12297 0xd7} \
+                {13303 0x53} ]
+
+set tc 1
+foreach test $tests {
+  do_test corruptE-3.$tc {
+    db close
+    forcecopy test.bu test.db
+
+    # insert corrupt byte(s)
+    hexio_write test.db [lindex $test 0] [format %02x [lindex $test 1]]
+
+    sqlite3 db test.db
+
+    catchsql {PRAGMA integrity_check}
+  } {/out of order/}
+  incr tc 1
+}
+
+finish_test
diff --git a/test/corruptF.test b/test/corruptF.test
new file mode 100644
index 0000000000000000000000000000000000000000..8c4fd84219365cea4a3d7fa7e89b343cfd95a33a
--- /dev/null
+++ b/test/corruptF.test
@@ -0,0 +1,153 @@
+# 2012 January 12
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix corruptF
+
+# Do not use a codec for tests in this file, as the database file is
+# manipulated directly using tcl scripts (using the [hexio_write] command).
+#
+do_not_use_codec
+
+# These tests deal with corrupt database files
+#
+database_may_be_corrupt
+
+proc str {i} { format %08d $i }
+
+# Create a 6 page database containing a single table - t1. Table t1 
+# consists of page 2 (the root page) and pages 5 and 6 (leaf pages). 
+# Database pages 3 and 4 are on the free list.
+#
+proc create_test_db {} {
+  catch { db close }
+  forcedelete test.db
+  sqlite3 db test.db
+  db func str str
+  execsql {
+    PRAGMA auto_vacuum = 0;
+    PRAGMA page_size = 1024;
+    CREATE TABLE t1(x);         /* root page = 2 */
+    CREATE TABLE t2(x);         /* root page = 3 */
+    CREATE TABLE t3(x);         /* root page = 4 */
+
+    INSERT INTO t1 VALUES(str(1));
+    INSERT INTO t1 SELECT str(rowid+1) FROM t1;
+    INSERT INTO t1 SELECT str(rowid+2) FROM t1;
+    INSERT INTO t1 SELECT str(rowid+4) FROM t1;
+    INSERT INTO t1 SELECT str(rowid+8) FROM t1;
+    INSERT INTO t1 SELECT str(rowid+16) FROM t1;
+    INSERT INTO t1 SELECT str(rowid+32) FROM t1;
+    INSERT INTO t1 SELECT str(rowid+64) FROM t1;
+    DROP TABLE t2;
+    DROP TABLE t3;
+  }
+  db close
+}
+
+do_test 1.1 { create_test_db } {}
+
+# Check the db is as we expect. 6 pages in total, with 3 and 4 on the free
+# list. Page 3 is the free list trunk and page 4 is a leaf.
+#
+do_test 1.2 { file size test.db } [expr 6*1024]
+do_test 1.3 { hexio_read test.db 32 4 } 00000003
+do_test 1.4 { hexio_read test.db [expr 2*1024] 12 } 000000000000000100000004
+
+# Change the free-list entry to page 6 and reopen the db file.
+do_test 1.5 { 
+  hexio_write test.db [expr 2*1024 + 8] 00000006 
+  sqlite3 db test.db
+} {}
+
+# Now create a new table in the database file. The root of the new table
+# is page 6, which is also the right-most leaf page in table t1.
+#
+do_execsql_test 1.6 { 
+  CREATE TABLE t4(x);
+  SELECT * FROM sqlite_master;
+} {
+  table t1 t1 2 {CREATE TABLE t1(x)} 
+  table t4 t4 6 {CREATE TABLE t4(x)}
+}
+
+# At one point this was causing an assert to fail.
+#
+# This statement opens a cursor on table t1 and does a full table scan. As
+# each row is visited, it is copied into table t4. There is no temporary
+# table.
+#
+# When the t1 cursor reaches page 6 (which is both the right-most leaf of
+# t1 and the root of t4), it continues to iterate through the keys within
+# it (which at this point are keys that have been inserted into t4). And
+# for each row visited, another row is inserted into page 6 - it being the
+# root page of t4. Eventually, page 6 becomes full and the height of the
+# b-tree for table t4 increased. From the point of view of the t1 cursor,
+# this unexpectedly reduces the number of keys on page 6 in the middle of
+# its iteration, which causes an assert() to fail.
+#
+db_save_and_close
+if 1 {
+for {set i 0} {$i < 128} {incr i} {
+  db_restore_and_reopen
+  do_test 1.7.$i { 
+    set res [
+      catchsql { INSERT INTO t4 SELECT x FROM t1 WHERE rowid>$i }
+    ]
+    if {$res == "0 {}" || $res == "1 {database disk image is malformed}"} {
+      set res ""
+    }
+    set res
+  } {}
+}
+}
+
+do_test 2.1 { create_test_db } {}
+do_test 2.2 { file size test.db } [expr 6*1024]
+do_test 2.3 { hexio_read test.db 32 4 } 00000003
+do_test 2.4 { hexio_read test.db [expr 2*1024] 12 } 000000000000000100000004
+
+# Change the free-list entry to page 5 and reopen the db file.
+do_test 2.5 { 
+  hexio_write test.db [expr 2*1024 + 8] 00000005 
+  sqlite3 db test.db
+} {}
+
+# Now create a new table in the database file. The root of the new table
+# is page 5, which is also the right-most leaf page in table t1.
+#
+do_execsql_test 2.6 { 
+  CREATE TABLE t4(x);
+  SELECT * FROM sqlite_master;
+} {
+  table t1 t1 2 {CREATE TABLE t1(x)} 
+  table t4 t4 5 {CREATE TABLE t4(x)}
+}
+
+db_save_and_close
+for {set i 127} {$i >= 0} {incr i -1} {
+  db_restore_and_reopen
+  do_test 2.7.$i { 
+    set res [
+      catchsql { 
+        INSERT INTO t4 SELECT x FROM t1 WHERE rowid<$i ORDER BY rowid DESC 
+      }
+    ]
+    if {$res == "0 {}" || $res == "1 {database disk image is malformed}"} {
+      set res ""
+    }
+    set res
+  } {}
+}
+
+finish_test
diff --git a/test/corruptG.test b/test/corruptG.test
new file mode 100644
index 0000000000000000000000000000000000000000..94480340a78b5d2452a4af23d6131abe2aef9c51
--- /dev/null
+++ b/test/corruptG.test
@@ -0,0 +1,75 @@
+# 2013-08-01
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix corruptG
+
+# This module uses hard-coded offsets which do not work if the reserved_bytes
+# value is nonzero.
+if {[nonzero_reserved_bytes]} {finish_test; return;}
+
+# These tests deal with corrupt database files
+#
+database_may_be_corrupt
+
+# Create a simple database with a single entry.  Then corrupt the
+# header-size varint on the index payload so that it maps into a
+# negative number.  Try to use the database.
+#
+
+do_execsql_test 1.1 {
+  PRAGMA page_size=512;
+  CREATE TABLE t1(a,b,c);
+  INSERT INTO t1(rowid,a,b,c) VALUES(52,'abc','xyz','123');
+  CREATE INDEX t1abc ON t1(a,b,c);
+}
+
+set idxroot [db one {SELECT rootpage FROM sqlite_master WHERE name = 't1abc'}]
+
+# Corrupt the file
+db close
+hexio_write test.db [expr {$idxroot*512 - 15}] 888080807f
+sqlite3 db test.db
+
+# Try to use the file.
+do_test 1.2 {
+  catchsql {
+    SELECT c FROM t1 WHERE a>'abc';
+  }
+} {1 {database disk image is malformed}}
+do_test 1.3 {
+  catchsql {
+     PRAGMA integrity_check
+  }
+} {1 {database disk image is malformed}}
+do_test 1.4 {
+  catchsql {
+    SELECT c FROM t1 ORDER BY a;
+  }
+} {1 {database disk image is malformed}}
+
+# Corrupt the same file in a slightly different way.  Make the record header
+# sane, but corrupt one of the serial_type value to indicate a huge payload
+# such that the payload begins in allocated space but overflows the buffer.
+#
+db close
+hexio_write test.db [expr {$idxroot*512-15}] 0513ff7f01
+sqlite3 db test.db
+
+do_test 2.1 {
+  catchsql {
+    SELECT rowid FROM t1 WHERE a='abc' and b='xyz123456789XYZ';
+  }
+} {1 {database disk image is malformed}}
+
+finish_test
diff --git a/test/corruptH.test b/test/corruptH.test
new file mode 100644
index 0000000000000000000000000000000000000000..9ba7522422be7214f861cfcb55f9c6736500bc42
--- /dev/null
+++ b/test/corruptH.test
@@ -0,0 +1,176 @@
+# 2014-01-20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix corruptH
+
+# This module uses hard-coded offsets which do not work if the reserved_bytes
+# value is nonzero.
+if {[nonzero_reserved_bytes]} {finish_test; return;}
+
+database_may_be_corrupt
+
+# The corruption migrations tested by the code in this file are not detected
+# mmap mode.
+#
+# The reason is that in mmap mode, the different queries may use different
+# PgHdr objects for the same page (same data, but different PgHdr container 
+# objects). And so the corruption is not detected. 
+#
+if {[permutation]=="mmap"} {
+  finish_test
+  return
+}
+
+# Initialize the database.
+#
+do_execsql_test 1.1 {
+  PRAGMA page_size=1024;
+
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+  INSERT INTO t1 VALUES(1, 'one');
+  INSERT INTO t1 VALUES(2, 'two');
+
+  CREATE TABLE t2(x);
+  INSERT INTO t2 VALUES(randomblob(200));
+  INSERT INTO t2 SELECT randomblob(200) FROM t2;
+  INSERT INTO t2 SELECT randomblob(200) FROM t2;
+  INSERT INTO t2 SELECT randomblob(200) FROM t2;
+  INSERT INTO t2 SELECT randomblob(200) FROM t2;
+  INSERT INTO t2 SELECT randomblob(200) FROM t2;
+  INSERT INTO t2 SELECT randomblob(200) FROM t2;
+} {}
+
+# Corrupt the file so that the root page of t1 is also linked into t2 as
+# a leaf page.
+#
+do_test 1.2 {
+  db eval { SELECT name, rootpage FROM sqlite_master } { 
+    set r($name) $rootpage 
+  }
+  db close
+  hexio_write test.db [expr {($r(t2)-1)*1024 + 11}] [format %.2X $r(t1)]
+  sqlite3 db test.db
+} {}
+
+do_test 1.3 {
+  db eval { PRAGMA secure_delete=1 }
+  list [catch {
+    db eval { SELECT * FROM t1 WHERE a IN (1, 2) } {
+      db eval { DELETE FROM t2 }
+    }
+  } msg] $msg
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+
+# Initialize the database.
+#
+do_execsql_test 2.1 {
+  PRAGMA auto_vacuum=0;
+  PRAGMA page_size=1024;
+
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+  INSERT INTO t1 VALUES(1, 'one');
+  INSERT INTO t1 VALUES(2, 'two');
+
+  CREATE TABLE t3(x);
+
+  CREATE TABLE t2(x PRIMARY KEY) WITHOUT ROWID;
+  INSERT INTO t2 VALUES(randomblob(100));
+
+  DROP TABLE t3;
+} {}
+
+do_test 2.2 {
+  db eval { SELECT name, rootpage FROM sqlite_master } { 
+    set r($name) $rootpage 
+  }
+  db close
+  set fl [hexio_get_int [hexio_read test.db 32 4]]
+
+  hexio_write test.db [expr {($fl-1) * 1024 + 0}] 00000000 
+  hexio_write test.db [expr {($fl-1) * 1024 + 4}] 00000001 
+  hexio_write test.db [expr {($fl-1) * 1024 + 8}] [format %.8X $r(t1)]
+  hexio_write test.db 36 00000002
+
+  sqlite3 db test.db
+} {}
+
+
+# The trick here is that the root page of the tree scanned by the outer 
+# query is also currently on the free-list. So while the first seek on
+# the table (for a==1) works, by the time the second is attempted The 
+# "INSERT INTO t2..." statements have recycled the root page of t1 and
+# used it as an index leaf. Normally, BtreeMovetoUnpacked() detects
+# that the PgHdr object associated with said root page does not match
+# the cursor (as it is now marked with PgHdr.intKey==0) and returns
+# SQLITE_CORRUPT. 
+#
+set res23 {1 {database disk image is malformed}}
+do_test 2.3 {
+  list [catch {
+  set res [list]
+  db eval { SELECT * FROM t1 WHERE a IN (1, 2) } {
+    db eval { 
+      INSERT INTO t2 SELECT randomblob(100) FROM t2;
+      INSERT INTO t2 SELECT randomblob(100) FROM t2;
+      INSERT INTO t2 SELECT randomblob(100) FROM t2;
+      INSERT INTO t2 SELECT randomblob(100) FROM t2;
+      INSERT INTO t2 SELECT randomblob(100) FROM t2;
+    }
+    lappend res $b
+  }
+  set res
+  } msg] $msg
+} $res23
+
+#-------------------------------------------------------------------------
+reset_db
+
+# Initialize the database.
+#
+do_execsql_test 3.1 {
+  PRAGMA page_size=1024;
+
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+  INSERT INTO t1 VALUES(1, 'one');
+  INSERT INTO t1 VALUES(2, 'two');
+
+  CREATE TABLE t2(c INTEGER PRAGMA KEY, d);
+  INSERT INTO t2 VALUES(1, randomblob(1100));
+} {}
+
+do_test 3.2 {
+  db eval { SELECT name, rootpage FROM sqlite_master } { 
+    set r($name) $rootpage 
+  }
+  db close
+
+  hexio_write test.db [expr {($r(t2)-1) * 1024 + 1020}] 00000002
+
+  sqlite3 db test.db
+} {}
+
+do_test 3.3 {
+  list [catch {
+  db eval { SELECT * FROM t1 WHERE a IN (1, 2) } {
+    db eval { 
+      DELETE FROM t2 WHERE c=1;
+    }
+  }
+  } msg] $msg
+} {1 {database disk image is malformed}}
+
+finish_test
diff --git a/test/corruptI.test b/test/corruptI.test
new file mode 100644
index 0000000000000000000000000000000000000000..65ef3762586aab1da2da0b33788ee19c439503c4
--- /dev/null
+++ b/test/corruptI.test
@@ -0,0 +1,258 @@
+# 2014-01-20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix corruptI
+
+if {[permutation]=="mmap"} {
+  finish_test
+  return
+}
+
+# This module uses hard-coded offsets which do not work if the reserved_bytes
+# value is nonzero.
+if {[nonzero_reserved_bytes]} {finish_test; return;}
+
+database_may_be_corrupt
+
+# Initialize the database.
+#
+do_execsql_test 1.1 {
+  PRAGMA page_size=1024;
+  PRAGMA auto_vacuum=0;
+  CREATE TABLE t1(a);
+  CREATE INDEX i1 ON t1(a);
+  INSERT INTO t1 VALUES('abcdefghijklmnop');
+} {}
+db close
+
+do_test 1.2 {
+  set offset [hexio_get_int [hexio_read test.db [expr 2*1024 + 8] 2]]
+  set off [expr 2*1024 + $offset + 1]
+  hexio_write test.db $off 7f06
+  sqlite3 db test.db
+  catchsql { SELECT * FROM t1 WHERE a = 10 }
+} {0 {}}
+
+do_test 1.3 {
+  db close
+  set offset [hexio_get_int [hexio_read test.db [expr 2*1024 + 8] 2]]
+  set off [expr 2*1024 + $offset + 1]
+  hexio_write test.db $off FFFF7f02
+  sqlite3 db test.db
+  catchsql { SELECT * FROM t1 WHERE a = 10 }
+} {1 {database disk image is malformed}}
+
+do_test 2.0 {
+  execsql {
+    CREATE TABLE r(x);
+    INSERT INTO r VALUES('ABCDEFGHIJK');
+    CREATE INDEX r1 ON r(x);
+  }
+  set pg [db one {SELECT rootpage FROM sqlite_master WHERE name = 'r1'}]
+} {5}
+
+do_test 2.1 {
+  db close
+  set offset [hexio_get_int [hexio_read test.db [expr (5-1)*1024 + 8] 2]]
+  set off [expr (5-1)*1024 + $offset + 1]
+  hexio_write test.db $off FFFF0004
+  sqlite3 db test.db
+  catchsql { SELECT * FROM r WHERE x >= 10.0 }
+} {1 {database disk image is malformed}}
+
+do_test 2.2 {
+  catchsql { SELECT * FROM r WHERE x >= 10 }
+} {1 {database disk image is malformed}}
+
+if {[db one {SELECT sqlite_compileoption_used('ENABLE_OVERSIZE_CELL_CHECK')}]} {
+  # The following tests only work if OVERSIZE_CELL_CHECK is disabled
+} else {
+  reset_db
+  do_execsql_test 3.1 {
+     PRAGMA auto_vacuum=0;
+     PRAGMA page_size = 512;
+     CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+     WITH s(a, b) AS (
+       SELECT 2, 'abcdefghij'
+       UNION ALL
+       SELECT a+2, b FROM s WHERe a < 40
+     )
+     INSERT INTO t1 SELECT * FROM s;
+   } {}
+   
+   do_test 3.2 {
+     hexio_write test.db [expr 512+3] 0054
+     db close
+     sqlite3 db test.db
+     execsql { INSERT INTO t1 VALUES(5, 'klmnopqrst') }
+     execsql { INSERT INTO t1 VALUES(7, 'klmnopqrst') }
+   } {}
+   
+   db close
+   sqlite3 db test.db
+   do_catchsql_test 3.3 {
+     INSERT INTO t1 VALUES(9, 'klmnopqrst');
+   } {1 {database disk image is malformed}}
+} ;# end-if !defined(ENABLE_OVERSIZE_CELL_CHECK)
+
+
+#-------------------------------------------------------------------------
+# Test that an assert() failure discovered by AFL corrupt database file
+# testing has been fixed.
+#
+reset_db
+do_execsql_test 4.0 {
+  PRAGMA page_size = 65536;
+  PRAGMA autovacuum = 0;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+  INSERT INTO t1 VALUES(-1, 'abcdefghij');
+  INSERT INTO t1 VALUES(0, 'abcdefghij');
+}
+
+set root [db one {SELECT rootpage FROM sqlite_master}]
+set offset [expr ($root-1) * 65536]
+
+do_test 4.1 {
+  db close
+  hexio_write test.db [expr $offset + 8 + 2] 0000
+  hexio_write test.db [expr $offset + 5] 0000
+  sqlite3 db test.db
+  catchsql { DELETE FROM t1 WHERE a=0 }
+} {1 {database disk image is malformed}}
+
+
+#-------------------------------------------------------------------------
+# Database properties:
+#
+#   * Incremental vacuum mode.
+#   * Database root table has a single leaf page.
+#   * Free list consists of a single trunk page.
+#
+# The db is then corrupted by adding the root table leaf page as a free-list
+# leaf page (so that it is referenced twice).
+#
+# Then, a new table is created. The new root page is the current free-list
+# trunk. This means that the root table leaf page is made into the new
+# free list trunk, which corrupts its header. Then, when the new entry is
+# inserted into the root table, things would get chaotic.
+#
+reset_db
+do_test 5.0 {
+  execsql {
+    PRAGMA page_size = 512;
+    PRAGMA auto_vacuum = 2;
+  }
+  for {set i 3} {1} {incr i} {
+    execsql "CREATE TABLE t${i}(x)"
+    if {[db one {PRAGMA page_count}]>$i} break
+  }
+  set nPage [db one {PRAGMA page_count}]
+  execsql {
+    CREATE TABLE t100(x);
+    DROP TABLE t100;
+  }
+} {}
+
+do_execsql_test 5.1 { 
+  PRAGMA page_count 
+} [expr $nPage+1]
+
+do_test 5.2 { 
+  # The last page of the db is now the only leaf of the sqlite_master table.
+  # Corrupt the db by adding it to the free-list as well (the second last
+  # page of the db is the free-list trunk).
+  db close
+  hexio_write test.db [expr 512*($nPage-1)] [
+    format "%.8X%.8X%.8X" 0 1 [expr $nPage+1]
+  ]
+} {12}
+
+do_test 5.3 {
+  sqlite3 db test.db
+  catchsql { CREATE TABLE tx(x); }
+} {1 {database disk image is malformed}}
+
+
+#-------------------------------------------------------------------------
+# Set the payload size of a cell to just less than 2^32 bytes (not
+# possible in an uncorrupted db). Then try to delete the cell. At one
+# point this led to an integer overflow that caused an assert() to fail.
+#
+reset_db
+do_execsql_test 6.0 {
+  PRAGMA page_size = 512;
+  PRAGMA auto_vacuum=0;
+  CREATE TABLE t1(x);
+  INSERT INTO t1 VALUES(zeroblob(300));
+  INSERT INTO t1 VALUES(zeroblob(600));
+} {}
+do_test 6.1 {
+  db close
+  hexio_write test.db 616 8FFFFFFF7F02
+  sqlite3 db test.db
+  execsql { DELETE FROM t1 WHERE rowid=2 }
+} {}
+
+#-------------------------------------------------------------------------
+# See what happens if the sqlite_master entry associated with a PRIMARY
+# KEY or UNIQUE index is removed. 
+#
+reset_db
+do_execsql_test 7.0 {
+  PRAGMA auto_vacuum=0;
+  CREATE TABLE t1(x PRIMARY KEY, y);
+  INSERT INTO t1 VALUES('a', 'A');
+  INSERT INTO t1 VALUES('b', 'A');
+  INSERT INTO t1 VALUES('c', 'A');
+  SELECT name FROM sqlite_master;
+} {t1 sqlite_autoindex_t1_1}
+sqlite3_db_config db DEFENSIVE 0
+do_execsql_test 7.1 {
+  PRAGMA writable_schema = 1;
+  DELETE FROM sqlite_master WHERE name = 'sqlite_autoindex_t1_1';
+}
+do_test 7.2 {
+  db close
+  sqlite3 db test.db
+  catchsql { UPDATE t1 SET x='d' AND y='D' WHERE rowid = 2 }
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+# At one point an assert() would fail if attempt was made to free page 1.
+#
+reset_db
+do_execsql_test 8.0 {
+  PRAGMA auto_vacuum=0;
+  CREATE TABLE t1(x);
+  INSERT INTO t1 VALUES(zeroblob(300));
+  INSERT INTO t1 VALUES(zeroblob(300));
+  INSERT INTO t1 VALUES(zeroblob(300));
+  INSERT INTO t1 VALUES(zeroblob(300));
+} {}
+
+do_test 8.1 {
+  db close
+  hexio_write test.db [expr 1024 + 8] 00000001
+  sqlite3 db test.db
+  catchsql { DELETE FROM t1 }
+} {1 {database disk image is malformed}}
+
+do_test 8.2 {
+  db close
+  sqlite3 db test.db
+  execsql { PRAGMA integrity_check }
+} {/.*in database main.*/}
+
+
+finish_test
diff --git a/test/corruptJ.test b/test/corruptJ.test
new file mode 100644
index 0000000000000000000000000000000000000000..732adb085cd8d4df5eb5888e68981bb61b0e8c1b
--- /dev/null
+++ b/test/corruptJ.test
@@ -0,0 +1,80 @@
+# 2015-03-30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Corruption consisting of a database page that thinks it is a child
+# of itself.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix corruptJ
+
+if {[permutation]=="mmap"} {
+  finish_test
+  return
+}
+
+# This module uses hard-coded offsets which do not work if the reserved_bytes
+# value is nonzero.
+if {[nonzero_reserved_bytes]} {finish_test; return;}
+
+database_may_be_corrupt
+
+# Initialize the database.
+#
+do_execsql_test 1.1 {
+  PRAGMA page_size=1024;
+  PRAGMA auto_vacuum=0;
+  CREATE TABLE t1(a,b);
+  WITH RECURSIVE c(i) AS (VALUES(1) UNION ALL SELECT i+1 FROM c WHERE i<10)
+    INSERT INTO t1(a,b) SELECT i, zeroblob(700) FROM c;
+} {}
+db close
+
+# Corrupt the root page of the t1 table such that the left-child pointer
+# for the very first cell points back to the root.  Then try to DROP the
+# table.  The clearDatabasePage() routine should not loop.
+#
+do_test 1.2 {
+  hexio_write test.db [expr {2*1024-2}] 02
+  sqlite3 db test.db
+  catchsql { DROP TABLE t1 }
+} {1 {database disk image is malformed}}
+
+# Similar test using a WITHOUT ROWID table
+#
+do_test 2.1 {
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+  db eval {
+    PRAGMA page_size=1024;
+    PRAGMA auto_vacuum=0;
+    CREATE TABLE t1(a,b,PRIMARY KEY(a,b)) WITHOUT ROWID;
+    WITH RECURSIVE c(i) AS (VALUES(1) UNION ALL SELECT i+1 FROM c WHERE i<100)
+      INSERT INTO t1(a,b) SELECT i, zeroblob(200) FROM c;
+  }
+} {}
+
+# The table is three levels deep.  Corrupt the left child of an intermediate
+# page so that it points back to the root page.
+#
+do_test 2.2 {
+  db close
+  hexio_read test.db [expr {9*1024+391}] 8
+} {00000008814D0401}
+do_test 2.2b {
+  hexio_write test.db [expr {9*1024+391}] 00000002
+  sqlite3 db test.db
+  catchsql { PRAGMA secure_delete=ON; DROP TABLE t1; }
+} {1 {database disk image is malformed}}
+
+finish_test
diff --git a/test/corruptK.test b/test/corruptK.test
new file mode 100644
index 0000000000000000000000000000000000000000..0bdb3c45b5f0dd7697193455120dbc804283271b
--- /dev/null
+++ b/test/corruptK.test
@@ -0,0 +1,234 @@
+# 2017-03-03
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix corruptK
+
+if {[permutation]=="mmap"} {
+  finish_test
+  return
+}
+
+# This module uses hard-coded offsets which do not work if the reserved_bytes
+# value is nonzero.
+if {[nonzero_reserved_bytes]} {finish_test; return;}
+database_may_be_corrupt
+
+# Initialize the database.
+# 
+do_execsql_test 1.1 {
+  PRAGMA page_size=1024;
+  PRAGMA auto_vacuum=0;
+  CREATE TABLE t1(x);
+
+  INSERT INTO t1 VALUES(randomblob(20));
+  INSERT INTO t1 VALUES(randomblob(100));   -- make this into a free slot
+  INSERT INTO t1 VALUES(randomblob(27));    -- this one will be corrupt
+  INSERT INTO t1 VALUES(randomblob(800));
+
+  DELETE FROM t1 WHERE rowid=2;  -- free the 100 byte slot
+  PRAGMA page_count
+} {2}
+
+
+# Corrupt the database so that the blob stored immediately before 
+# the free slot (rowid==3) has an overlarge length field. So that
+# we can use sqlite3_blob_write() to manipulate the size field of
+# the free slot.
+#
+# Then use sqlite3_blob_write() to set the size of said free slot
+# to 24 bytes (instead of the actual 100).
+#
+# Then use the new 24 byte slot. Leaving the in-memory version of
+# the page with zero free slots and a large nFree value. Then try
+# to allocate another slot to get to defragmentPage().
+#
+do_test 1.2 {
+  db close
+  hexio_write test.db [expr 1024 + 0x360] 21
+  hexio_write test.db [expr 1024 + 0x363] [format %x [expr 31*2 + 12]]
+  sqlite3 db test.db
+
+  set fd [db incrblob t1 x 3]
+  fconfigure $fd -translation binary
+  seek $fd 30
+  puts -nonewline $fd "\x18"
+  close $fd
+} {}
+do_execsql_test 1.3 {
+  INSERT INTO t1 VALUES(randomblob(20));
+}
+
+# This test no longer functions due to the deferred computation of
+# MemPage.nFree.
+#
+if 0 {
+do_catchsql_test 1.4 {
+  INSERT INTO t1 VALUES(randomblob(90));
+} {1 {database disk image is malformed}}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 2.1 {
+  PRAGMA page_size=1024;
+  PRAGMA auto_vacuum=0;
+  CREATE TABLE t1(x);
+
+  INSERT INTO t1 VALUES(randomblob(20));
+  INSERT INTO t1 VALUES(randomblob(20));    -- free this one
+  INSERT INTO t1 VALUES(randomblob(20));
+  INSERT INTO t1 VALUES(randomblob(20));    -- and this one
+  INSERT INTO t1 VALUES(randomblob(20));    -- corrupt this one.
+
+  DELETE FROM t1 WHERE rowid IN(2, 4);
+  PRAGMA page_count
+} {2}
+
+do_test 2.2 {
+  db close
+  hexio_write test.db [expr 1024 + 0x388] 53
+  hexio_write test.db [expr 1024 + 0x38A] 03812C
+
+  sqlite3 db test.db
+  set fd [db incrblob t1 x 5]
+  fconfigure $fd -translation binary
+
+  seek $fd 22
+  puts -nonewline $fd "\x5d"
+  close $fd
+} {}
+
+do_catchsql_test 2.3 {
+  INSERT INTO t1 VALUES(randomblob(900));
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+
+ifcapable vtab {
+if {[permutation]!="inmemory_journal"} {
+
+  proc hex2blob {hex} {
+    # Split on newlines:
+    set bytes [list]
+    foreach l [split $hex "\n"] {
+      if {[string is space $l]} continue
+      set L [list]
+      foreach b [split $l] {
+        if {[string is xdigit $b] && [string length $b]==2} { 
+          lappend L [expr "0x$b"]
+        }
+      }
+      if {[llength $L]!=16} {
+        error "Badly formed hex (1)"
+      }
+      set bytes [concat $bytes $L]
+    }
+  
+    binary format c* $bytes
+  }
+  
+  reset_db
+  db func hex2blob hex2blob
+  
+  do_execsql_test 3.1 {
+    PRAGMA page_size=1024;
+    CREATE TABLE t1(a, b, c);
+    CREATE TABLE t2(a, b, c);
+    CREATE TABLE t3(a, b, c);
+    CREATE TABLE t4(a, b, c);
+    CREATE TABLE t5(a, b, c);
+  }
+  sqlite3_db_config db DEFENSIVE 0
+  do_execsql_test 3.2 {
+    UPDATE sqlite_dbpage SET data = hex2blob('
+   000: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00 SQLite format 3.
+   010: 04 00 01 01 20 40 20 20 00 00 3e d9 00 00 00 06 .... @  ..>.....
+   020: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 04 ................
+   030: 0f 00 00 00 00 00 00 00 00 00 00 01 00 00 83 00 ................
+   040: 00 00 00 00 00 00 00 00 00 00 00 00 00 38 00 00 .............8..
+   050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 3e d9 ..............>.
+   060: 00 2d e6 07 0d 00 00 00 01 03 a0 00 03 e0 00 00 .-..............
+   070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+   080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+   090: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+   0a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+   0b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+   0c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+   0d0: 00 00 00 00 00 c1 00 00 00 00 00 00 00 00 00 00 ................
+   0e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+   0f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+   100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+   110: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+   120: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+   130: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+   140: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+   150: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+   160: 00 83 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+   170: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+   180: 00 00 00 00 00 00 00 00 00 00 07 00 30 00 00 00 ............0...
+   190: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+   1a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+   1b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+   1c0: 02 00 00 00 00 00 00 00 00 00 00 02 00 00 00 00 ................
+   1d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+   1e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+   1f0: 00 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+   200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+   210: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+   220: 00 00 0e 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+   230: 0c 00 00 00 00 00 00 60 00 00 00 06 00 00 c3 00 .......`........
+   240: 00 06 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+   250: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+   260: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+   270: 00 00 00 18 00 00 00 00 00 00 00 00 00 00 00 00 ................
+   280: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+   290: 04 00 0e 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+   2a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+   2b0: 00 00 00 00 83 00 8c 00 00 00 00 00 00 00 00 00 ................
+   2c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+   2d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+   2e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+   2f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+   300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+   310: 00 78 00 00 00 00 00 00 00 00 00 00 00 00 70 00 .x............p.
+   320: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+   330: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+   340: 00 00 00 04 00 00 00 00 00 00 00 00 00 00 00 00 ................
+   350: 00 00 00 00 00 68 00 00 00 00 00 00 00 00 00 00 .....h..........
+   360: 00 00 00 00 00 03 00 00 00 00 00 00 00 00 00 00 ................
+   370: 00 00 00 00 00 00 00 00 00 00 00 00 00 08 00 00 ................
+   380: 00 00 00 00 70 00 00 00 00 00 00 00 00 00 00 00 ....p...........
+   390: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+   3a0: 5e 01 07 17 1b 1b 01 81 13 74 61 62 6c 65 73 65 ^........tablese
+   3b0: 6e 73 6f 32 73 73 65 6e 73 6f 72 73 02 43 52 45 nso2ssensors.CRE
+   3c0: 41 54 45 20 54 41 42 4c 45 20 73 65 6e 73 6f 72 ATE TABLE sensor
+   3d0: 73 20 0a 20 20 24 20 20 20 20 20 20 20 20 20 20 s .  $          
+   3e0: b8 6e 61 6d 65 21 74 65 78 74 2c 20 79 61 6c 20 .name!text, yal 
+   3f0: 72 65 61 6c 2c 20 74 69 6d 65 20 74 65 78 74 29 real, time text)
+    ') WHERE pgno=1
+  }
+  
+  db close
+  sqlite3 db test.db
+  
+  do_catchsql_test 3.3 {
+    PRAGMA integrity_check;
+  } {1 {database disk image is malformed}}
+
+} ;# [permutation]!="inmemory_journal"
+} ;# ifcapable vtab
+
+
+
+finish_test
diff --git a/test/corruptL.test b/test/corruptL.test
new file mode 100644
index 0000000000000000000000000000000000000000..52adf6fd72bb114a9915177fca3094371240f6ac
--- /dev/null
+++ b/test/corruptL.test
@@ -0,0 +1,1593 @@
+# 2019-01-11
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix corruptL
+
+database_may_be_corrupt
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 1.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 356352 pagesize 4096 filename crash-acaae0347204ae.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 d0 00 00 00   .....@  ........
+|     32: 40 00 ea 00 00 00 00 00 00 40 00 00 00 40 00 00   @........@...@..
+|     96: 00 00 00 00 0d 00 00 00 04 0e 9c 00 0f ad 0f 4f   ...............O
+|    112: 0e fc 0e 9c 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   3728: 00 00 00 00 00 00 00 00 00 00 00 00 5e 04 07 17   ............^...
+|   3744: 1f 1f 01 81 0b 74 61 62 6c 65 74 31 5f 70 61 72   .....tablet1_par
+|   3760: 65 6e 74 74 31 5f 70 61 72 65 6e 74 04 43 52 45   entt1_parent.CRE
+|   3776: 41 54 45 20 54 41 42 4c 45 20 22 74 31 5f 70 61   ATE TABLE .t1_pa
+|   3792: 72 65 6e 74 22 28 6e 6f 64 65 6e 6f 20 49 4e 54   rent.(nodeno INT
+|   3808: 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59   EGER PRIMARY KEY
+|   3824: 2c 70 61 72 65 6e 74 6e 6f 64 65 29 51 03 06 17   ,parentnode)Q...
+|   3840: 1b 1b 01 7b 74 61 62 6c 65 74 31 5f 6e 6f 64 65   ....tablet1_node
+|   3856: 74 31 5f 6e 6f 64 65 03 43 52 45 41 54 45 20 54   t1_node.CREATE T
+|   3872: 41 42 4c 45 20 22 74 31 5f 6e 6f 64 65 22 28 6e   ABLE .t1_node.(n
+|   3888: 6f 64 65 6e 6f 20 49 4e 54 45 47 45 52 20 50 52   odeno INTEGER PR
+|   3904: 49 4d 41 52 59 20 4b 45 59 2c 64 61 74 61 29 5c   IMARY KEY,data).
+|   3920: 02 07 17 1d 1d 01 81 0b 74 61 62 6c 65 74 31 5f   ........tablet1_
+|   3936: 72 6f 77 69 64 74 31 5f 72 6f 77 69 64 02 43 52   rowidt1_rowid.CR
+|   3952: 45 41 54 45 20 54 41 42 4c 45 20 22 74 31 5f 72   EATE TABLE .t1_r
+|   3968: 6f 77 69 64 22 28 72 6f 77 69 64 20 49 4e 54 45   owid.(rowid INTE
+|   3984: 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c   GER PRIMARY KEY,
+|   4000: 6e 6f 64 65 6e 6f 2c 61 30 2c 61 31 29 51 01 07   nodeno,a0,a1)Q..
+|   4016: 17 11 11 08 81 0f 74 61 62 6c 65 74 31 74 31 43   ......tablet1t1C
+|   4032: 52 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41   REATE VIRTUAL TA
+|   4048: 42 4c 45 20 74 31 20 55 53 49 4e 47 20 72 74 72   BLE t1 USING rtr
+|   4064: 65 65 28 69 64 2c 78 30 20 50 52 49 4d 41 52 59   ee(id,x0 PRIMARY
+|   4080: 20 4b 45 59 2c 70 61 72 65 6e 74 6e 6f 64 65 29    KEY,parentnode)
+| page 2 offset 4096
+|      0: 51 03 06 17 1b 1b 01 7b 74 61 62 6c 65 74 31 5f   Q.......tablet1_
+|     16: 6e 6f 64 65 74 31 5f 6e 6f 64 65 03 43 52 45 41   nodet1_node.CREA
+|     32: 54 45 20 54 41 42 4c 45 20 22 74 31 5f 6e 6f 64   TE TABLE .t1_nod
+|     48: 65 22 28 6e 6f 64 65 6e 6f 20 49 4e 54 45 47 45   e.(nodeno INTEGE
+|     64: 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 64 61   R PRIMARY KEY,da
+|     80: 74 61 29 5c 02 07 17 1d 1d 01 81 0b 74 61 62 6c   ta).........tabl
+|     96: 65 74 31 5f 72 6f 77 69 64 74 31 5f 72 6f 77 69   et1_rowidt1_rowi
+|    112: 64 02 43 52 45 41 54 45 20 54 41 42 4c 45 00 00   d.CREATE TABLE..
+|    128: 01 0a 02 00 00 00 01 0e 0d 00 00 00 00 24 0e 0d   .............$..
+|    144: 0c 1a 06 85 50 46 60 27 70 08 00 00 00 00 00 00   ....PF`'p.......
+|   3824: 00 00 00 00 00 00 00 0d 0e 05 00 09 1d 00 74 6f   ..............to
+|   3840: 79 20 68 61 6c 66 10 0d 05 00 09 23 00 62 6f 74   y half.....#.bot
+|   3856: 74 6f 6d 20 68 61 6c 66 0f 0c 05 00 09 21 00 72   tom half.....!.r
+|   3872: 69 67 68 74 20 68 61 6c 66 0e 0b 05 00 09 1f 00   ight half.......
+|   3888: 6c 65 66 74 20 43 15 f6 e6 f6 46 50 34 35 24 54   left C....FP45$T
+|   3904: 15 44 52 05 44 14 24 c4 52 02 27 43 15 f6 e6 f6   .DR.D.$.R.'C....
+|   3920: 46 52 22 8e 6f 64 65 6e 6f 20 49 4e 54 45 47 45   FR..odeno INTEGE
+|   3936: 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 64 61   R PRIMARY KEY,da
+|   3952: 74 61 29 5c 02 07 17 1d 1d 01 81 0b 74 61 62 6c   ta).........tabl
+|   3968: 65 74 31 5f 72 6f 74 74 6f 6d 20 65 64 67 65 0f   et1_rottom edge.
+|   3984: 07 05 00 09 21 00 72 69 67 68 74 20 65 64 67 65   ....!.right edge
+|   4000: 0e 06 05 00 09 1f 00 6c 65 66 74 20 65 64 67 65   .......left edge
+|   4016: 0b 05 05 00 09 19 00 63 65 6e 74 65 72 17 04 05   .......center...
+|   4032: 00 09 31 00 75 70 70 65 72 2d 72 69 67 68 74 20   ..1.upper-right 
+|   4048: 63 6f 72 6e 65 72 17 03 05 00 09 31 00 6c 6f 77   corner.....1.low
+|   4064: 65 72 2d 72 69 67 68 74 20 63 6f 72 6e 65 72 16   er-right corner.
+|   4080: 02 05 00 09 2f 00 75 70 70 65 72 2d 6c 65 66 74   ..../.upper-left
+| page 3 offset 8192
+|      0: 20 63 6f 72 6e 65 72 16 01 05 00 09 2f 01 8c 6f    corner...../..o
+|     16: 77 65 72 2d 6c 53 51 4c 69 74 65 20 66 6f 72 6d   wer-lSQLite form
+|     32: 61 74 20 33 00 10 00 01 01 00 40 20 20 00 00 00   at 3......@  ...
+|     48: 00 00 00 00 2f 00 00 0d eb 13 00 00 00 03 00 00   ..../...........
+|     64: 00 04 00 00 00 00 00 00 00 06 00 00 00 01 00 00   ................
+|     80: 00 00 00 00 00 01 00 00 00 00 00 00 00 00 00 00   ................
+| page 6 offset 20480
+|    128: 00 00 00 00 00 00 00 00 97 3d 04 ae 7c 01 00 00   .........=..|...
+|    624: 00 00 00 00 00 00 21 97 3d 04 ae 7c 01 00 00 00   ......!.=..|....
+|   1120: 00 00 00 00 00 20 97 3d 04 ae 7c 01 00 00 00 00   ..... .=..|.....
+|   1616: 00 00 00 00 1f 97 3d 04 ae 7c 01 00 00 00 00 00   ......=..|......
+|   2112: 00 00 00 1e 97 3d 04 ae 7c 01 00 00 00 00 00 00   .....=..|.......
+|   2608: 00 00 1d 97 d3 d0 4a e7 c0 00 00 00 00 00 00 00   ......J.........
+|   3088: 00 00 00 00 00 00 00 00 00 00 00 00 01 f3 00 00   ................
+|   3600: 23 97 3d 04 ae 7c 01 00 00 00 00 00 00 00 00 00   #.=..|..........
+|   4080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 26   ...............&
+| page 8 offset 28672
+|      0: 0d 00 00 00 01 04 30 00 04 30 00 00 00 00 00 00   ......0..0......
+|   1072: 97 4d 1e 14 00 ae 7c 00 00 00 00 00 00 00 00 00   .M....|.........
+|   1088: 00 00 00 00 00 00 01 00 00 00 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 03   ................
+| page 10 offset 36864
+|      0: 0d 00 00 00 01 04 30 00 04 30 00 00 00 00 00 00   ......0..0......
+|   1072: 9a ee c1 80 fd 78 1f ce 1b ae eb b4 00 00 00 00   .....x..........
+|   1088: 13 20 ff 20 00 70 00 00 00 60 50 00 00 00 11 e0   . . .p...`P.....
+|   1104: 00 00 00 70 00 00 00 60 50 05 35 14 c6 97 46 52   ...p...`P.5...FR
+|   1120: 06 66 f7 26 d6 17 42 03 30 01 00 00 10 10 04 02   .f.&..B.0.......
+|   1136: 02 00 00 00 00 00 00 00 00 40 00 00 00 00 00 00   .........@......
+|   1152: 00 00 00 00 00 40 00 00 00 40 00 00 00 00 00 00   .....@...@......
+|   4080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 05   ................
+| page 12 offset 45056
+|      0: 0d 00 00 00 01 04 30 00 04 30 e1 b4 30 97 4d 46   ......0..0..0.MF
+|     16: 14 00 ae 7c 00 00 00 00 00 00 00 03 00 00 43 00   ...|..........C.
+| page 47 offset 188416
+|   2512: 00 00 00 00 00 00 00 00 be 00 00 00 00 00 00 00   ................
+| page 87 offset 352256
+|   2512: 00 00 00 00 00 00 00 00 aa 00 00 00 00 00 00 00   ................
+| end crash-acaae0347204ae.db
+}]} {}
+
+do_catchsql_test 1.1 {
+  PRAGMA cell_size_check = off;
+  DROP INDEX t1x1;
+} {1 {database disk image is malformed}}
+
+do_catchsql_test 1.2 {
+  SELECT sum(s+length(b)) FROM t1 WHERE a IN (110,10,150) AND q IS NULL;
+} {1 {database disk image is malformed}}
+
+do_catchsql_test 1.3 {
+  REINDEX t1;
+} {1 {database disk image is malformed}}
+
+do_catchsql_test 1.4 {
+  PRAGMA integrity_check
+} {1 {database disk image is malformed}}
+
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 2.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 20480 pagesize 4096 filename crash.txt.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 05   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 05 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 00 00 00 05 0e 55 00 0f 74 0f 3c   ..........U..t.<
+|    112: 0e f9 0e d1 0e 55 00 00 00 00 00 00 00 00 00 00   .....U..........
+|   3664: 00 00 00 00 00 7a 05 07 15 11 11 08 81 63 76 69   .....z.......cvi
+|   3680: 65 77 76 31 76 31 43 52 45 41 54 45 20 56 49 45   ewv1v1CREATE VIE
+|   3696: 57 20 76 31 28 78 2c 79 29 20 41 53 0a 53 45 4c   W v1(x,y) AS.SEL
+|   3712: 45 43 54 20 74 31 2e 62 2c 74 32 2e 62 20 46 52   ECT t1.b,t2.b FR
+|   3728: 4f 4d 20 74 31 2c 74 32 20 57 48 45 52 45 20 74   OM t1,t2 WHERE t
+|   3744: 31 2e 61 3d 74 32 2e 61 20 47 52 4f 55 50 20 42   1.a=t2.a GROUP B
+|   3760: 59 20 31 20 48 41 56 49 4e 47 20 74 32 2e 63 20   Y 1 HAVING t2.c 
+|   3776: 4e 4f 54 20 4e 55 4c 4c 0a 4c 49 4d 49 54 20 31   NOT NULL.LIMIT 1
+|   3792: 30 26 04 06 17 11 11 01 39 74 61 62 6c 65 74 32   0&......9tablet2
+|   3808: 74 32 05 43 52 45 41 54 45 20 54 41 42 4c 45 20   t2.CREATE TABLE 
+|   3824: 74 32 28 61 2c 62 2c 63 29 41 03 06 17 15 11 01   t2(a,b,c)A......
+|   3840: 6b 69 6e 64 65 78 74 31 78 31 74 31 04 43 52 45   kindext1x1t1.CRE
+|   3856: 41 54 45 20 49 4e 44 45 58 20 73 31 78 31 20 4f   ATE INDEX s1x1 O
+|   3872: 4e 20 74 31 28 64 29 20 57 48 45 52 45 20 65 65   N t1(d) WHERE ee
+|   3888: 20 49 53 20 4e 4f 54 20 4e 55 4c 4c 36 02 06 17    IS NOT NULL6...
+|   3904: 17 11 01 53 69 6e 64 65 78 74 31 61 62 63 74 31   ...Sindext1abct1
+|   3920: 03 43 52 45 41 54 45 20 49 4e 44 45 58 20 74 31   .CREATE INDEX t1
+|   3936: 61 62 63 20 4f 4e 20 74 31 28 61 2c 62 2c 63 2b   abc ON t1(a,b,c+
+|   3952: 64 2b 65 29 81 09 01 07 17 11 11 01 81 7d 74 61   d+e)..........ta
+|   3968: 62 6c 65 74 31 74 31 02 43 52 45 41 54 45 20 54   blet1t1.CREATE T
+|   3984: 41 42 4c 45 20 74 31 28 61 2c 62 2c 63 2c 64 2c   ABLE t1(a,b,c,d,
+|   4000: 65 2c 66 2c 67 2c 68 2c 6a 2c 6a 6a 2c 6a 6a 6a   e,f,g,h,j,jj,jjj
+|   4016: 2c 6b 2c 61 61 2c 62 62 2c 63 63 2c 64 64 2c 65   ,k,aa,bb,cc,dd,e
+|   4032: 65 20 44 45 46 41 55 4c 54 20 33 2e 31 34 2c 0a   e DEFAULT 3.14,.
+|   4048: 66 66 20 44 45 46 41 55 4c 54 28 27 68 69 63 63   ff DEFAULT('hicc
+|   4064: 75 70 27 29 2c 67 67 20 4e 4f 54 20 4e 55 4c 4c   up'),gg NOT NULL
+|   4080: 20 44 45 46 41 55 4c 54 28 66 61 6c 73 65 29 29    DEFAULT(false))
+| page 2 offset 4096
+|      0: 0d 00 00 00 0a 0e 7b 00 0f dc 0f b6 0f 8f 0f 68   ...............h
+|     16: 0f 41 0f 1a 0e f3 0e cb 0e a3 0e 7b 00 00 00 00   .A..............
+|   3696: 00 00 00 00 00 00 00 00 00 00 00 26 0a 14 01 01   ...........&....
+|   3712: 02 08 00 00 00 00 00 00 00 00 00 00 00 00 07 19   ................
+|   3728: 08 09 5a 00 b4 40 09 1e b8 51 eb 85 1f 68 69 63   ..Z..@...Q...hic
+|   3744: 63 75 70 26 09 14 01 01 02 08 00 00 00 00 00 00   cup&............
+|   3760: 00 00 00 00 00 00 07 19 08 08 50 00 a0 40 09 1e   ..........P..@..
+|   3776: b8 51 eb 85 1f 68 69 63 63 75 70 26 08 14 01 01   .Q...hiccup&....
+|   3792: 02 08 00 00 00 00 00 00 00 00 00 00 00 00 07 19   ................
+|   3808: 08 07 46 00 8c 40 09 1e b8 51 eb 85 1f 68 69 63   ..F..@...Q...hic
+|   3824: 63 75 70 25 07 14 01 01 01 08 00 00 00 00 00 00   cup%............
+|   3840: 00 00 00 00 00 00 07 b9 08 06 3c 78 40 09 1e b8   ..........<x@...
+|   3856: 51 eb 85 1f 68 69 63 63 75 70 25 06 14 01 00 01   Q...hiccup%.....
+|   3872: 08 00 00 00 00 00 00 00 00 00 00 00 00 07 19 08   ................
+|   3888: 05 32 64 40 09 1e b8 51 eb 85 1f 68 69 63 63 75   .2d@...Q...hiccu
+|   3904: 70 25 05 14 01 01 01 08 00 00 00 00 00 00 00 00   p%..............
+|   3920: 00 00 00 00 07 19 08 04 28 50 40 09 1e b8 51 eb   ........(P@...Q.
+|   3936: 85 1f 68 69 63 63 75 70 25 04 14 01 01 01 08 00   ..hiccup%.......
+|   3952: 00 00 00 00 00 00 00 00 00 00 00 07 19 08 03 1e   ................
+|   3968: 3c 40 09 1e b8 51 eb 85 1f 68 69 63 63 75 70 25   <@...Q...hiccup%
+|   3984: 03 14 01 01 01 08 00 00 00 00 00 00 00 00 00 00   ................
+|   4000: 00 00 07 19 08 02 14 28 40 09 1e b8 51 eb 85 1f   .......(@...Q...
+|   4016: 68 69 63 63 75 70 24 02 14 09 01 01 08 00 00 00   hiccup$.........
+|   4032: 00 00 00 00 00 00 00 00 00 07 19 08 0a 14 40 09   ..............@.
+|   4048: 1e b8 51 eb 85 1f 68 69 63 63 75 70 22 01 14 08   ..Q...hiccup....
+|   4064: 08 08 07 ff ff ff ff ff ff 00 00 00 00 00 00 07   ................
+|   4080: 19 08 40 09 1e b8 51 eb 85 1f 68 69 63 63 75 70   ..@...Q...hiccup
+| page 3 offset 8192
+|      0: 0a 00 00 00 0a 0f aa 00 0f fa 0f f2 0f e9 0f e0   ................
+|     16: 0f d7 0f ce 0f c5 0f bc 0e b3 0f aa 00 00 00 00   ................
+|   4000: 00 00 00 00 00 00 00 00 00 00 08 05 01 01 00 01   ................
+|   4016: 09 5a 0a 08 05 01 01 00 01 08 50 09 08 05 01 01   .Z........P.....
+|   4032: 00 01 07 46 08 08 05 01 01 00 01 06 3c 07 08 05   ...F........<...
+|   4048: 01 01 00 01 05 32 06 08 05 01 01 00 01 04 28 05   .....2........(.
+|   4064: 08 05 01 01 00 01 03 1e 04 08 05 01 01 00 01 02   ................
+|   4080: 14 03 07 05 09 01 00 01 0a 02 05 05 08 08 00 09   ................
+| page 4 offset 12288
+|      0: 0a 00 00 00 0a 0f cf 00 0f fc 0f f7 0f f2 0f ed   ................
+|     16: 0f e8 0f e3 0f de 0f d9 0f d4 0f cf 00 00 00 00   ................
+|   4032: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 04   ................
+|   4048: 03 08 01 0a 04 03 08 01 09 04 03 08 01 08 04 03   ................
+|   4064: 08 01 07 04 03 08 01 06 04 03 08 01 05 04 03 08   ................
+|   4080: 01 04 04 03 08 01 13 04 03 08 01 02 03 03 08 09   ................
+| page 5 offset 16384
+|      0: 0d 00 00 00 00 10 00 00 00 00 00 00 00 00 00 00   ................
+| end crash.txt.db
+}]} {}
+
+do_execsql_test 2.1 {
+  PRAGMA writable_schema=ON; -- bypass improved sqlite_master consistency checking
+  INSERT INTO t1(b) VALUES(X'a0fee3669f9fddefc5cba913e4225d4b6ce2b04f26b87fad3ee6f9b7d90a1ea62a169bf41e5d32707a6ca5c3d05e4bde05c9d89eaaa8c50e74333d2e9fcd7dfe95528a3a016aac1102d825c5cd70cf99d8a88e0ea7f798d4334386518b7ad359beb168b93aba059a2a3bd93112d65b44c12b9904ea786b204d80531cdf0504bf9b203dbe927061974caf7b9f30cbc3397b61f802e732012a6663d41c3607d6f1c0dbcfd489adac05ca500c0b04439d894cd93a840159225ef73b627e178b9f84b3ffe66cf22a963a8368813ff7961fc47f573211ccec95e0220dcbb3bf429f4a50ba54d7a53784ac51bfef346e6ac8ae0d0e7c3175946e62ba2b');
+}
+
+do_catchsql_test 2.2 {
+  SELECT b,c FROM t1 ORDER BY a;
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 3.0 {
+  CREATE TABLE t1(a, b, c, d INTEGER PRIMARY KEY);
+  CREATE TABLE t2(a, b, c, d INTEGER PRIMARY KEY);
+
+  INSERT INTO t1(a, b, c, d) VALUES (1, 2, 3, 100), (4, 5, 6, 101);
+  INSERT INTO t2(a, b, c, d) VALUES (1, 100, 3, 1000), (4, 101, 6, 1001);
+
+  CREATE INDEX t1a ON t1(a);
+  CREATE INDEX t2a ON t2(a, b, c);
+
+  PRAGMA writable_schema = 1;
+  UPDATE sqlite_master SET sql = 'CREATE INDEX t2a ON t2(a)' WHERE name='t2a';
+}
+
+db close
+sqlite3 db test.db
+
+do_catchsql_test 3.1 {
+  INSERT INTO t1 SELECT * FROM t2;
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 4.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 4096 pagesize 512 filename crash-6b48ba69806134.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 02 00 01 01 00 40 20 20 00 ff ff ff ff 00 00 07   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 08 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 05 00 eb 00 01 00 00 00 00   ................
+|     80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0c   ................
+|     96: 00 2e 2c 50 0d 00 00 00 06 01 06 00 01 da 01 b0   ..,P............
+|    112: 05 56 01 86 01 2a 01 06 00 00 00 00 00 00 00 00   .V...*..........
+|    128: 00 ff 00 00 ff ff ff e1 00 00 00 00 00 00 00 00   ................
+|    144: 00 00 00 00 00 00 00 00 00 01 00 00 00 00 00 00   ................
+|    160: 00 00 00 00 00 00 00 00 f2 00 00 00 00 00 00 00   ................
+|    176: 00 00 f9 ff ff ff ff ff ff ff 00 00 00 00 00 fb   ................
+|    208: 00 00 00 00 00 00 00 00 1e 00 00 00 fe 00 00 00   ................
+|    224: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ca 00   ................
+|    256: 00 00 00 00 ef ff 22 07 06 17 11 11 01 31 74 61   .............1ta
+|    272: 62 6c 65 74 38 38 74 04 43 52 45 41 54 45 20 54   blet88t.CREATE T
+|    288: 41 42 4c 45 20 74 34 28 87 29 2a 06 06 17 13 11   ABLE t4(.)*.....
+|    304: 01 3f 69 4f 64 65 78 74 33 78 74 33 05 43 52 45   .?iOdext3xt3.CRE
+|    320: 41 54 45 20 49 6e 44 45 58 20 74 33 78 20 4f 4e   ATE InDEX t3x ON
+|    336: 20 74 33 28 78 29 2e 04 06 17 15 11 01 45 69 6e    t3(x).......Ein
+|    352: 64 65 2e 74 32 63 64 74 3d 05 43 52 45 41 54 45   de.t2cdt=.CREATE
+|    368: 20 49 4e 44 45 58 20 74 32 63 64 20 4f 4e 20 74    INDEX t2cd ON t
+|    384: 32 28 0a 0c 44 29 28 05 06 17 11 11 01 3d 74 61   2(..D)(......=ta
+|    400: 62 6c 65 d4 33 74 33 04 43 52 45 41 54 45 20 54   ble.3t3.CREATE T
+|    416: 41 42 4c 45 20 74 33 28 63 2c 78 2c 65 2c 66 29   ABLE t3(c,x,e,f)
+|    432: 28 02 06 17 11 11 01 3d 74 61 62 6c 65 74 32 74   (......=tablet2t
+|    448: 32 03 43 52 45 41 54 45 20 54 41 42 4c 45 20 74   2.CREATE TABLE t
+|    464: 32 28 63 2c 64 2c 65 2c 66 29 24 01 06 17 11 11   2(c,d,e,f)$.....
+|    480: 01 35 74 60 62 6c 65 74 31 74 31 02 43 52 45 41   .5t`blet1t1.CREA
+|    496: 54 45 20 54 41 42 4c 45 20 74 30 28 61 2c 62 29   TE TABLE t0(a,b)
+| page 2 offset 512
+|      0: 0d 00 ff 11 04 01 cf 00 01 fa 01 f3 01 de 01 cf   ................
+|     32: 00 00 08 00 00 00 00 00 00 00 00 00 00 00 00 13   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 20 00 00   ............. ..
+|     64: 00 00 00 00 00 00 f8 ff ff ff 00 00 00 00 00 00   ................
+|    160: 01 64 00 00 00 00 00 80 ff ff ff 00 00 00 00 00   .d..............
+|    176: 00 00 00 00 00 00 00 00 1f 00 00 00 00 00 00 03   ................
+|    192: 00 00 40 00 00 00 00 00 00 00 00 00 00 00 00 00   ..@.............
+|    288: 00 00 00 00 00 00 ff ff ff e9 00 00 00 00 00 00   ................
+|    336: 01 00 00 ff ff 00 00 00 00 00 00 00 00 00 00 00   ................
+|    368: 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ...............
+|    384: 00 de ff 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|    464: 00 00 00 00 00 13 76 65 6e 65 69 67 68 74 13 03   ......veneight..
+|    480: 03 40 07 07 14 00 54 45 20 49 4e 44 45 58 20 74   .@....TE INDEX t
+|    496: 32 63 64 20 4f 4e 20 74 32 28 0a 0c 44 09 01 02   2cd ON t2(..D...
+| page 3 offset 1024
+|      0: 0d 00 00 00 48 01 54 00 01 f7 01 ec 01 c5 01 aa   ....H.T.........
+|     16: 30 34 28 87 29 2a 06 06 17 13 11 01 3f 69 4f 64   04(.)*......?iOd
+|     32: 65 79 74 33 78 74 33 6d 6d 6d 6d 6d 6d 7d 6d 6d   eyt3xt3mmmmmm.mm
+|     48: 6d 41 6d 6d 6d 6d 6d 6d 6d 6d 6d 6d 6d 6d 6d 6d   mAmmmmmmmmmmmmmm
+|     64: 6d 6d 6d 6d 6d 6d 6d 6d 6d 6d 6d 66 6d 6d 6d 6d   mmmmmmmmmmmfmmmm
+|     80: 6d 4e 6d 6d 6d 6d 6d 6d 6d 6d 6d 6d 6d 6d 6d 6d   mNmmmmmmmmmmmmmm
+|     96: 6d 6d 6d 6d 6d 6d 6d 6d 6d 6d 6d 6d 6d 6d 6d 6d   mmmmmmmmmmmmmmmm
+|    112: 6d 6d 6d 6d 6d 6d 6d 6d 6d 6d 6d 6d 6d 6d 6d 6d   mmmmmmmmmmmmmmmm
+|    128: 6d 6d 6d 6d 6d 00 00 00 00 00 00 00 00 00 00 00   mmmmm...........
+|    160: 80 00 00 00 00 00 00 03 00 00 00 ff e4 00 00 00   ................
+|    208: 00 00 00 00 00 00 00 00 00 00 00 00 00 c5 00 00   ................
+|    240: 14 00 00 00 00 00 00 00 00 00 00 00 08 00 00 00   ................
+|    256: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0f ec   ................
+|    304: 00 00 00 00 19 08 05 17 17 17 17 65 69 67 68 74   ...........eight
+|    320: 65 69 67 68 74 73 65 00 00 00 00 00 00 00 00 00   eightse.........
+|    336: 00 00 00 00 19 08 05 17 17 17 17 65 69 67 68 74   ...........eight
+|    352: 65 69 67 68 74 73 65 01 65 6e 00 00 00 10 25 07   eightse.en....%.
+|    368: 07 6e 25 07 07 07 40 18 00 00 00 00 00 00 40 18   .n%...@.......@.
+|    384: 00 00 00 00 00 00 40 14 00 00 00 00 00 00 40 14   ......@.......@.
+|    400: 00 00 00 00 00 00 09 06 05 01 01 01 01 04 04 03   ................
+|    416: 03 07 05 05 01 01 09 09 02 02 19 04 05 17 17 17   ................
+|    432: 17 10 65 76 65 6e 65 69 67 68 74 65 69 67 68 74   ..eveneighteight
+|    448: 73 65 76 65 6e 25 03 05 07 07 07 07 40 14 00 00   seven%......@...
+|    464: 00 00 00 00 40 18 00 00 00 00 00 00 40 18 00 00   ....@.......@...
+|    480: 00 00 00 00 40 14 00 00 00 00 e8 f6 09 02 00 00   ....@...........
+|    496: 00 00 00 00 00 00 00 00 00 00 64 00 00 00 00 02   ..........d.....
+| page 4 offset 1536
+|      0: 0d 00 00 00 00 02 00 00 00 00 00 00 00 00 00 fa   ................
+|     16: 1f a1 07 00 00 00 00 00 01 00 00 00 00 00 00 00   ................
+|     32: 00 00 00 00 00 00 00 00 00 00 00 00 00 73 69 6d   .............sim
+|     48: 70 6c 65 00 00 00 00 00 00 00 00 00 00 00 00 00   ple.............
+|     80: 00 00 00 00 00 10 00 00 00 00 00 00 01 00 00 00   ................
+|     96: 00 00 00 00 00 00 00 00 00 00 00 00 00 fe ff ff   ................
+|    112: ff 00 00 00 00 00 00 00 00 00 00 00 4a 00 00 00   ............J...
+|    144: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|    176: e5 ff ff ff 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|    208: 00 00 00 00 00 00 00 00 00 00 36 36 00 00 00 00   ..........66....
+|    240: 00 00 00 6c 00 00 00 00 00 00 00 00 00 00 00 00   ...l............
+|    256: 00 80 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|    320: 00 00 00 00 00 00 00 00 01 00 00 02 00 80 00 00   ................
+|    336: 00 00 00 00 00 19 08 05 17 17 17 17 65 69 67 68   ............eigh
+|    352: 74 65 69 67 68 74 73 65 76 65 6e 73 65 76 65 6e   teightsevenseven
+|    368: 25 07 05 07 07 07 07 40 18 00 00 00 00 00 00 40   %......@.......@
+|    384: 18 00 20 00 00 00 40 00 14 00 00 00 00 00 00 40   .. ...@........@
+|    400: 14 00 00 00 00 00 1c 09 06 05 01 01 01 01 04 04   ................
+|    416: 03 03 07 05 05 01 01 00 00 00 00 00 00 00 00 00   ................
+|    448: 74 73 65 76 65 6e 00 80 ff ff 00 00 00 00 00 aa   tseven..........
+|    464: 00 9e 00 00 00 00 00 00 00 00 00 00 00 70 6f 72   .............por
+|    480: 74 65 72 00 00 00 00 00 00 00 00 00 00 00 00 00   ter.............
+|    496: 00 00 00 00 00 00 29 00 00 00 00 00 00 00 00 00   ......).........
+| page 5 offset 2048
+|      0: 0a 00 00 00 08 01 96 00 01 fa 01 c5 01 f2 01 bc   ................
+|     16: 01 dc 01 a6 01 96 01 cc 00 00 00 00 00 00 00 00   ................
+|    112: 00 00 00 09 00 00 00 00 01 00 00 00 00 00 00 00   ................
+|    160: 74 72 69 67 62 ff ff ff ff fc 00 00 00 00 00 00   trigb...........
+|    240: 00 00 00 00 00 00 00 00 00 00 ff 00 00 00 00 00   ................
+|    256: e5 ff ff ff 00 00 54 00 00 00 00 00 00 00 00 00   ......T.........
+|    304: 00 00 00 00 00 00 09 00 00 00 00 00 00 00 00 00   ................
+|    400: 00 00 00 00 00 09 00 00 00 00 01 00 00 00 00 00   ................
+|    448: 00 00 74 72 69 67 62 ff ff ff ff fc 00 00 07 05   ..trigb.........
+|    464: 05 01 01 09 09 02 02 19 04 05 17 17 17 17 10 65   ...............e
+|    480: 76 65 6e 65 69 67 68 74 65 40 18 00 00 00 00 01   veneighte@......
+|    496: 02 03 07 04 01 01 01 03 04 02 05 04 09 01 ff fd   ................
+| end crash-6b48ba69806134.db
+}]} {}
+
+set res {1 {database disk image is malformed}}
+ifcapable oversize_cell_check {
+  set res {1 {no such table: t3}}
+}
+do_catchsql_test 4.1 {
+  PRAGMA writable_schema=ON; -- bypass improved sqlite_master consistency checking
+  INSERT INTO t3 SELECT * FROM t2;
+} $res
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 5.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 192512 pagesize 4096 filename crash-9ae5502296c949.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 2f   .....@  ......./
+|     32: 00 00 00 1b 00 00 00 13 00 00 00 03 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 06 00 00 00 01 00 00 00 00   ................
+|     64: 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|     96: 00 00 00 00 0d 00 00 00 04 0e e2 00 0f 96 0f 44   ...............D
+|    112: 0f 10 0e e2 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   3808: 00 00 2c 04 06 17 15 11 01 41 69 6e 64 65 78 74   ..,......Aindext
+|   3824: 31 78 32 74 31 06 43 52 45 41 54 45 20 49 4e 44   1x2t1.CREATE IND
+|   3840: 45 58 20 74 31 78 32 20 4f 4e 20 74 31 28 62 29   EX t1x2 ON t1(b)
+|   3856: 32 03 06 17 15 11 01 4d 69 6e 64 65 78 74 31 78   2......Mindext1x
+|   3872: 31 74 31 05 43 52 45 41 54 45 20 49 4e 44 45 58   1t1.CREATE INDEX
+|   3888: 20 74 31 78 31 20 4f 4e 20 74 31 28 67 2b 68 2c    t1x1 ON t1(g+h,
+|   3904: 6a 2c 6b 29 50 02 06 17 2b 2b 01 59 74 61 62 6c   j,k)P...++.Ytabl
+|   3920: 65 73 71 6c 69 74 65 5f 73 65 71 75 65 6e 63 65   esqlite_sequence
+|   3936: 73 71 6c 69 74 65 5f 73 65 71 75 65 6e 63 65 04   sqlite_sequence.
+|   3952: 43 52 45 41 54 45 20 54 41 42 4c 45 20 73 71 6c   CREATE TABLE sql
+|   3968: 69 74 65 5f 73 65 71 75 65 6e 63 65 28 6e 61 6d   ite_sequence(nam
+|   3984: 65 2c 73 65 71 29 68 01 07 17 11 11 01 81 3b 74   e,seq)h.......;t
+|   4000: 61 62 6c 65 74 31 74 31 03 43 52 45 41 54 45 20   ablet1t1.CREATE 
+|   4016: 54 41 42 4c 45 20 74 31 28 61 20 49 4e 54 45 47   TABLE t1(a INTEG
+|   4032: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 20 41   ER PRIMARY KEY A
+|   4048: 55 54 4f 49 4e 43 52 45 4d 45 4e 54 2c 0a 62 2c   UTOINCREMENT,.b,
+|   4064: 63 2c 64 2c 65 2c 66 2c 67 2c 68 2c 6a 2c 6b 2c   c,d,e,f,g,h,j,k,
+|   4080: 6c 2c 6d 2c 6e 2c 6f 2c 70 2c 71 2c 72 2c 73 29   l,m,n,o,p,q,r,s)
+| page 2 offset 4096
+|      0: 01 00 00 00 00 01 00 00 00 00 01 00 00 00 00 01   ................
+|     16: 00 00 00 00 02 10 00 00 00 05 00 00 00 03 02 00   ................
+|     32: 00 00 00 05 00 00 00 03 02 00 00 00 00 05 00 00   ................
+|     48: 00 03 02 00 00 00 00 05 00 00 00 03 02 00 00 00   ................
+|     64: 00 05 00 00 00 03 02 00 00 00 00 05 00 00 00 03   ................
+|     80: 02 00 00 00 00 05 00 00 00 03 02 00 00 00 00 05   ................
+|     96: 00 00 00 03 02 00 00 00 00 05 00 00 00 03 05 00   ................
+|    112: 00 00 03 03 00 00 00 23 02 00 00 00 00 03 00 00   .......#........
+|    128: 00 23 02 00 00 00 00 03 00 00 00 23 02 00 00 00   .#.........#....
+|    144: 00 03 00 00 00 23 02 00 00 00 00 03 00 00 00 23   .....#.........#
+|    160: 05 00 00 00 06 05 00 00 00 06 02 00 00 00 00 03   ................
+|    176: 00 00 00 06 02 00 00 00 00 03 00 00 00 24 02 00   .............$..
+|    192: 00 00 00 03 00 00 00 24 02 00 00 00 00 03 00 00   .......$........
+|    208: 00 24 02 00 00 00 00 02 00 00 00 00 03 00 00 00   .$..............
+|    224: 24 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   $...............
+| page 3 offset 8192
+|      0: 05 00 00 00 09 0f d0 00 00 00 00 19 0f fb 0f f6   ................
+|     16: 0f f1 0f ec 0f e7 0f e2 0f dc 0f d6 0f d0 0f a0   ................
+|     32: 0f a0 0f a0 0f a0 0f a0 0f a0 0f a0 0f a0 0f a0   ................
+|   1072: 00 97 4c 0a 14 00 ae 7c 00 00 00 00 00 00 00 00   ..L....|........
+|   1088: 00 00 00 00 00 00 00 09 00 00 00 00 00 00 00 00   ................
+|   4000: 0f ac 00 06 00 00 00 00 00 30 00 00 00 00 00 00   .........0......
+|   4048: 00 00 00 16 81 2a 00 00 00 14 81 16 00 00 00 12   .....*..........
+|   4064: 81 02 00 00 00 10 6e 00 00 00 0e 5a 00 00 00 0c   ......n....Z....
+|   4080: 46 00 00 00 0a 32 00 00 00 08 1e 00 00 00 18 0a   F....2..........
+| page 4 offset 12288
+|      0: 0d 00 00 00 01 0f f7 00 0f f7 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 07 01 03 11 02 74 31 00 be   ............t1..
+| page 5 offset 16384
+|      0: 0a 0f 7c 00 0a 0f 74 00 0f f9 0f eb 0f dd 0f cf   ..|...t.........
+|     16: 0f c1 0f b3 0f a4 0f 94 0f 84 0f 74 0f 74 0f 74   ...........t.t.t
+|     32: 0f 74 0f 74 0f 74 0f 74 0f 74 0f 74 0f 74 00 00   .t.t.t.t.t.t.t..
+|   3952: 00 00 00 00 07 05 00 00 00 02 00 be 0f 8c 00 08   ................
+|   3968: 00 00 00 00 07 05 00 00 00 02 00 aa 0f 9c 00 08   ................
+|   3984: 00 00 00 00 07 05 00 00 00 02 00 96 0f ac 00 08   ................
+|   4000: 00 00 00 00 07 05 00 00 00 02 00 82 0f ba 00 07   ................
+|   4016: 00 00 00 06 05 00 00 00 01 6e 0f c8 00 07 00 00   .........n......
+|   4032: 00 06 05 00 00 00 01 5a 0f d6 00 07 00 00 00 06   .......Z........
+|   4048: 05 00 00 00 01 46 0f e4 00 07 00 00 00 06 05 00   .....F..........
+|   4064: 00 00 01 32 0f f2 00 07 00 00 00 06 05 00 00 00   ...2............
+|   4080: 01 1e 00 00 00 07 00 00 00 06 05 00 00 00 01 0a   ................
+| page 6 offset 20480
+|      0: 02 00 00 00 01 0e 0d 00 00 00 00 24 0e 0d 0c 1a   ...........$....
+|     16: 06 55 04 66 02 77 00 88 00 00 00 00 00 00 00 00   .U.f.w..........
+|    128: 00 00 00 00 00 00 00 00 97 3d 04 ae 7c 01 00 00   .........=..|...
+|    624: 00 00 00 00 00 00 21 97 3d 04 ae 7c 01 00 00 00   ......!.=..|....
+|   1120: 00 00 00 00 00 20 97 3d 04 ae 7c 01 00 00 00 00   ..... .=..|.....
+|   1616: 00 00 00 00 1f 97 3d 04 ae 7c 01 00 00 00 00 00   ......=..|......
+|   2112: 00 00 00 1e 97 3d 04 ae 7c 01 00 00 00 00 00 00   .....=..|.......
+|   2608: 00 00 1d 97 3d 04 ae 7c 01 00 00 00 00 00 00 00   ....=..|........
+|   3088: 00 00 00 00 00 00 00 00 00 00 00 00 01 f3 00 00   ................
+|   3600: 23 97 3d 04 ae 7c 01 00 00 00 00 00 00 00 00 00   #.=..|..........
+|   4080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 26   ...............&
+| page 8 offset 28672
+|      0: 0d 00 00 00 01 04 30 00 04 30 00 00 00 00 00 00   ......0..0......
+|   1072: 97 4d 1e 14 00 ae 7c 00 00 00 00 00 00 00 00 00   .M....|.........
+|   1088: 00 00 00 00 00 00 01 00 00 00 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 03   ................
+| page 10 offset 36864
+|    256: 0d 00 00 00 01 04 30 00 04 30 00 00 00 00 00 00   ......0..0......
+|   1072: 97 4d 32 14 00 ae 7c 00 00 00 00 00 00 00 00 00   .M2...|.........
+|   1088: 00 00 00 00 00 00 01 00 00 00 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 05   ................
+| page 12 offset 45056
+|      0: 0d 00 00 00 01 04 30 00 04 30 00 00 00 00 00 00   ......0..0......
+|   1072: 97 4d 46 14 00 ae 7c 00 00 00 00 00 00 00 00 00   .MF...|.........
+|   1088: 00 00 00 00 00 00 01 00 00 00 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 07   ................
+| page 14 offset 53248
+|      0: 0d 00 00 00 01 04 30 00 04 30 00 00 00 00 00 00   ......0..0......
+|   1072: 97 4d 5a 14 00 ae 7c 00 00 00 00 00 00 00 00 00   .MZ...|.........
+|   1088: 00 00 00 00 00 00 01 00 00 00 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 09   ................
+| page 16 offset 61440
+|      0: 0d 00 00 00 01 04 30 00 04 30 00 00 00 00 00 00   ......0..0......
+|   1072: 97 4d 6e 14 00 ae 7c 00 00 00 00 00 00 00 00 00   .Mn...|.........
+|   1088: 00 00 00 00 00 00 01 00 00 00 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0b   ................
+| page 18 offset 69632
+|      0: 0d 00 00 00 01 04 2f 00 04 2f 00 00 00 00 00 00   ....../../......
+|   1056: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 97   ................
+|   1072: 4d 81 02 14 00 ae 7c 00 00 00 00 00 00 00 00 00   M.....|.........
+|   1088: 00 00 00 00 00 00 01 00 00 00 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0d   ................
+| page 20 offset 77824
+|      0: 0d 00 00 00 01 04 2f 00 04 2f 00 00 00 00 00 00   ....../../......
+|   1056: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 97   ................
+|   1072: 4d 81 16 14 00 ae 7c 00 00 00 00 00 00 00 00 00   M.....|.........
+|   1088: 00 00 00 00 00 00 01 00 00 00 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0f   ................
+| page 22 offset 86016
+|      0: 0d 00 00 00 01 04 2f 00 04 2f 00 00 00 00 00 00   ....../../......
+|   1056: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 97   ................
+|   1072: 4d 81 2a 14 00 ae 7c 00 00 00 00 00 00 00 00 00   M.*...|.........
+|   1088: 00 00 00 00 00 00 01 00 00 00 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 11   ................
+| page 24 offset 94208
+|      0: 0d 00 00 00 01 04 31 00 04 31 00 00 00 00 00 00   ......1..1......
+|   1072: 00 97 4c 0a 14 00 ae 7c 00 00 00 00 00 00 00 00   ..L....|........
+|   1088: 00 00 00 00 00 00 00 09 00 00 00 00 00 00 00 00   ................
+| page 25 offset 98304
+|      0: 0d 00 00 00 01 04 2f 00 04 2f 00 00 00 00 00 00   ....../../......
+|   1056: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 97   ................
+|   1072: 4d 81 3e 14 00 ae 7c 00 00 00 00 00 00 00 00 00   M.>...|.........
+|   1088: 00 00 00 00 00 00 01 00 00 00 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 13   ................
+| page 26 offset 102400
+|   2512: 00 00 00 00 00 00 00 0a 00 00 00 00 00 00 00 00   ................
+| page 27 offset 106496
+|      0: 00 00 00 00 00 00 00 12 00 00 00 07 00 00 00 1d   ................
+|     16: 00 00 00 09 00 00 00 1f 00 00 00 0b 00 00 00 21   ...............!
+|     32: 00 00 00 0d 00 00 00 25 00 00 00 0f 00 00 00 19   .......%........
+|     48: 00 00 00 11 00 00 00 29 00 00 00 13 00 00 00 2b   .......).......+
+|     64: 00 00 00 15 00 00 00 2d 00 00 00 2e 00 00 00 17   .......-........
+| page 28 offset 110592
+|   2512: 00 00 00 00 00 00 00 1e 00 00 00 00 00 00 00 00   ................
+| page 30 offset 118784
+|   2512: 00 00 00 00 00 00 00 32 00 00 00 00 00 00 00 00   .......2........
+| page 32 offset 126976
+|   2512: 00 00 00 00 00 00 00 46 00 00 00 00 00 00 00 00   .......F........
+| page 34 offset 135168
+|   2512: 00 00 00 00 00 00 00 5a 00 00 00 00 00 00 00 00   .......Z........
+| page 35 offset 139264
+|      0: 0a 08 44 00 05 02 77 00 0e 11 0a 33 06 55 02 77   ..D...w....3.U.w
+|     16: 04 66 00 88 00 88 00 88 00 00 00 00 00 00 00 00   .f..............
+|    128: 00 00 00 00 00 00 00 00 04 66 01 ef 00 00 00 00   .........f......
+|    624: 00 00 00 00 00 00 00 97 3d 04 ae 7c 01 00 00 00   ........=..|....
+|   1120: 00 00 00 00 00 20 97 3d 04 ae 7c 01 00 00 00 00   ..... .=..|.....
+|   1616: 00 00 00 00 22 97 3d 04 ae 7c 01 00 00 00 00 00   ......=..|......
+|   2112: 00 00 00 1e 0c 22 01 ef 00 00 00 00 00 00 00 00   ................
+|   2608: 00 00 00 97 3d 04 ae 7c 01 00 00 00 00 00 00 00   ....=..|........
+|   3104: 00 1c 00 00 01 ef 00 00 00 00 00 00 00 00 00 00   ................
+|   3600: 00 97 3d 04 ae 7c 01 00 00 00 00 00 00 00 00 00   ..=..|..........
+|   4080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 1a   ................
+| page 36 offset 143360
+|      0: 0a 08 44 00 04 02 77 00 06 55 02 77 04 66 0e 11   ..D...w..U.w.f..
+|     16: 00 88 00 88 00 88 0e 11 00 00 00 00 00 00 00 00   ................
+|    128: 00 00 00 00 00 00 00 00 04 76 01 ef 00 00 00 00   .........v......
+|    624: 00 00 00 00 00 00 00 97 3e 04 ae 7c 02 00 00 00   ........>..|....
+|   1120: 00 00 00 00 00 2a 97 3e 04 ae 7c 02 00 00 00 00   .....*.>..|.....
+|   1616: 00 00 00 00 2c 97 3e 04 ae 7c 02 00 00 00 00 00   ....,.>..|......
+|   2112: 00 00 00 28 00 00 05 cd 00 00 00 00 00 00 00 00   ...(............
+|   3600: 00 97 3e 04 ae 7c 02 00 00 00 00 00 00 00 00 00   ..>..|..........
+|   4080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 2f   .............../
+| page 38 offset 151552
+|   2512: 00 00 00 00 00 00 00 6e 00 00 00 00 00 00 00 00   .......n........
+| page 40 offset 159744
+|   2512: 00 00 00 00 00 00 00 00 82 00 00 00 00 00 00 00   ................
+| page 42 offset 167936
+|   2512: 00 00 00 00 00 00 00 00 96 00 00 00 00 00 00 00   ................
+| page 44 offset 176128
+|   2512: 00 00 00 00 00 00 00 00 aa 00 00 00 00 00 00 00   ................
+| page 47 offset 188416
+|   2512: 00 00 00 00 00 00 00 00 be 00 00 00 00 00 00 00   ................
+| end crash-9ae5502296c949.db
+}]} {}
+
+do_catchsql_test 5.1 {
+  INSERT INTO t1(b) VALUES(zeroblob(40000));
+} {1 {database disk image is malformed}}
+
+do_catchsql_test 5.2 {
+  DROP INDEX t1x2;
+} {0 {}}
+
+do_catchsql_test 5.3 {
+  INSERT INTO t1(b) VALUES(zeroblob(40000));
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 6.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 20480 pagesize 4096 filename crash-d260f001fa015c.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 05   .....@  ........
+|     32: 00 00 00 00 00 ff ff f0 00 00 00 02 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 64 00 00 00 01 00 00 00 00   .......d........
+|     96: 00 00 00 00 0d 0f f8 00 04 0e ce 00 0f 4c 0f d3   .............L..
+|    112: 0e fa 0e ce 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   3776: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 2a 04   ..............*.
+|   3792: 06 17 13 11 01 3f 69 6e 64 65 78 74 31 62 74 31   .....?indext1bt1
+|   3808: 05 43 52 45 41 54 45 20 49 4e 44 45 58 20 74 31   .CREATE INDEX t1
+|   3824: 62 20 4f 4e 20 74 31 28 62 29 50 03 06 17 2b 2b   b ON t1(b)P...++
+|   3840: 01 59 74 61 62 6c 65 73 71 6c 69 74 65 5f 73 65   .Ytablesqlite_se
+|   3856: 71 75 65 6e 63 65 73 71 6c 69 74 65 5f 73 65 71   quencesqlite_seq
+|   3872: 75 65 6e 63 65 04 43 52 45 41 54 45 20 54 41 42   uence.CREATE TAB
+|   3888: 4c 45 20 73 71 6c 69 74 65 5f 73 65 71 75 65 6e   LE sqlite_sequen
+|   3904: 63 65 28 6e 61 6d 65 2c 73 65 71 29 81 04 01 07   ce(name,seq)....
+|   3920: 17 11 11 01 81 73 74 61 62 6c 65 74 31 74 31 02   .....stablet1t1.
+|   3936: 43 52 45 41 54 45 20 54 41 42 4c 45 20 74 31 28   CREATE TABLE t1(
+|   3952: 61 20 52 45 41 4c 20 4e 4f 54 20 4e 55 4c 4c 20   a REAL NOT NULL 
+|   3968: 44 45 46 41 55 4c 54 28 32 35 2b 33 32 29 2c 62   DEFAULT(25+32),b
+|   3984: 20 46 4c 4f 41 54 2c 63 20 44 4f 55 42 4c 45 20    FLOAT,c DOUBLE 
+|   4000: 55 4e 49 51 55 45 2c 0a 64 20 43 4c 4f 42 2c 65   UNIQUE,.d CLOB,e
+|   4016: 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59    INTEGER PRIMARY
+|   4032: 20 4b 45 59 20 41 55 54 4f 49 4e 43 52 45 4d 45    KEY AUTOINCREME
+|   4048: 4e 54 29 23 02 06 17 37 11 01 00 69 6e 64 65 78   NT)#...7...index
+|   4064: 73 71 6c 69 74 65 5f 61 75 74 6f 69 6e 64 65 78   sqlite_autoindex
+|   4080: 5f 74 31 5f 31 74 31 05 00 00 00 08 00 00 00 00   _t1_1t1.........
+| page 2 offset 4096
+|      0: 0d 00 00 00 00 10 00 00 00 00 00 00 00 00 00 00   ................
+| page 3 offset 8192
+|      0: 0a 00 00 00 00 10 00 00 00 00 00 00 00 00 00 00   ................
+| page 4 offset 12288
+|      0: 0d 00 00 00 00 10 00 00 00 00 00 00 00 00 00 00   ................
+| page 5 offset 16384
+|      0: 0a 00 00 00 00 10 00 00 00 00 00 00 00 00 00 00   ................
+| end crash-d260f001fa015c.db
+}]} {}
+
+do_catchsql_test 6.1 {
+  BEGIN;
+    INSERT INTO t1(b) VALUES(1);
+    INSERT INTO t1(b) VALUES(2);
+  COMMIT;
+} {1 {malformed database schema (t1b) - invalid rootpage}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 7.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 20480 pagesize 4096 filename crash-8391315d75edff.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 05   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 05 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 00 00 00 05 0e 55 00 0f 74 0f 3c   ..........U..t.<
+|    112: 0e f9 0e d1 0e 55 00 00 00 00 00 00 00 00 00 00   .....U..........
+|   3664: 00 00 00 00 00 7a 05 07 15 11 11 08 81 63 76 69   .....z.......cvi
+|   3680: 65 77 76 31 76 31 43 52 45 41 54 45 20 56 49 45   ewv1v1CREATE VIE
+|   3696: 57 20 76 31 28 78 2c 69 29 20 41 53 0a 53 45 4c   W v1(x,i) AS.SEL
+|   3712: 45 43 54 20 74 31 2e 62 2c 74 32 2e 62 20 46 52   ECT t1.b,t2.b FR
+|   3728: 4f 4d 20 74 31 2c 74 32 20 57 48 45 52 45 20 74   OM t1,t2 WHERE t
+|   3744: 31 2e 61 3d 74 32 2e 61 20 47 52 4f 55 50 20 42   1.a=t2.a GROUP B
+|   3760: 59 20 31 20 48 41 56 49 4e 47 20 74 32 2e 63 20   Y 1 HAVING t2.c 
+|   3776: 4e 4f 54 20 4e 55 4c 4c 0a 4c 49 4d 49 54 20 31   NOT NULL.LIMIT 1
+|   3792: 30 26 04 06 17 11 11 01 39 74 61 62 6c 65 74 32   0&......9tablet2
+|   3808: 74 32 05 43 52 45 41 54 45 20 54 41 42 4c 45 20   t2.CREATE TABLE 
+|   3824: 74 32 28 61 2c 62 2c 63 29 41 03 06 17 15 11 01   t2(a,b,c)A......
+|   3840: 6b 69 6e 64 65 78 74 31 78 31 74 31 03 43 52 45   kindext1x1t1.CRE
+|   3856: 41 54 45 20 49 4e 44 45 58 20 74 31 78 31 20 4f   ATE INDEX t1x1 O
+|   3872: 4e 20 74 31 28 64 29 20 57 48 45 52 45 20 65 65   N t1(d) WHERE ee
+|   3888: 20 49 53 20 4e 4f 54 20 4e 55 4c 4c 36 02 06 17    IS NOT NULL6...
+|   3904: 17 11 01 53 69 6e 64 65 78 74 31 61 62 63 74 31   ...Sindext1abct1
+|   3920: 03 43 52 45 41 54 45 20 49 4e 44 45 58 20 74 31   .CREATE INDEX t1
+|   3936: 61 62 63 20 4f 4e 20 74 31 28 61 2c 62 2c 63 2b   abc ON t1(a,b,c+
+|   3952: 64 2b 65 29 81 09 01 07 17 11 11 01 81 7d 74 61   d+e)..........ta
+|   3968: 62 6c 65 74 31 74 31 02 43 52 45 41 54 45 20 54   blet1t1.CREATE T
+|   3984: 41 42 4c 45 20 74 31 28 61 2c 62 2c 63 2c 64 2c   ABLE t1(a,b,c,d,
+|   4000: 65 2c 66 2c 67 2c 68 2c 6a 2c 6a 6a 2c 6a 6a 6a   e,f,g,h,j,jj,jjj
+|   4016: 2c 6b 2c 61 61 2c 62 69 8c 63 63 2c 64 64 2c 65   ,k,aa,bi.cc,dd,e
+|   4032: 65 20 44 45 46 41 55 4c 54 20 33 2e 31 34 2c 0a   e DEFAULT 3.14,.
+|   4048: 66 66 20 44 45 46 41 55 4c 54 28 27 68 69 63 63   ff DEFAULT('hicc
+|   4064: 75 70 27 29 2c 67 67 20 4e 4f 54 20 4e 55 4c 4c   up'),gg NOT NULL
+|   4080: 20 44 45 46 41 55 4c 54 28 66 61 6c 73 65 29 29    DEFAULT(false))
+| page 2 offset 4096
+|      0: 0d 00 00 00 0a 0e 7b 00 0f dc 0f b6 0f 8f 0f 68   ...............h
+|     16: 0f 41 0f 1a 0e f3 0e cb 0e a3 0e 22 00 00 00 00   .A..............
+|   3696: 00 00 00 00 00 00 00 00 00 00 00 26 0a 14 01 01   ...........&....
+|   3712: 02 08 00 00 00 00 00 00 00 00 00 00 00 00 07 19   ................
+|   3728: 08 09 5a 00 b4 40 09 1e b8 51 eb 95 1f 68 69 63   ..Z..@...Q...hic
+|   3744: 63 75 70 26 09 14 01 01 02 08 00 00 00 00 00 00   cup&............
+|   3760: 00 00 00 00 00 00 07 19 08 08 50 00 a0 40 09 1e   ..........P..@..
+|   3776: b8 51 eb 85 1f 68 69 63 63 74 70 26 08 14 01 01   .Q...hicctp&....
+|   3792: 03 08 00 00 00 00 00 00 00 00 00 00 00 00 07 19   ................
+|   3808: 08 07 46 00 8c 40 09 1e b8 51 eb 85 1f 68 69 63   ..F..@...Q...hic
+|   3824: 63 75 70 25 07 14 01 01 01 08 00 00 00 00 00 00   cup%............
+|   3840: 00 00 00 00 00 10 07 19 08 06 3c 78 40 09 1e b8   ..........<x@...
+|   3856: 51 eb 85 1f 68 69 63 63 75 70 25 06 14 01 01 01   Q...hiccup%.....
+|   3872: 08 00 00 00 00 00 00 00 00 00 00 00 00 07 19 08   ................
+|   3888: 05 32 64 40 09 1e b8 51 eb 85 1f 68 69 63 63 75   .2d@...Q...hiccu
+|   3904: 70 25 05 14 01 01 01 08 00 00 00 00 00 00 00 00   p%..............
+|   3920: 00 00 00 00 07 19 08 04 28 50 40 09 1e b8 51 eb   ........(P@...Q.
+|   3936: 85 1f 68 69 63 63 75 70 25 04 14 01 00 f1 08 00   ..hiccup%.......
+|   3952: 00 00 00 00 00 00 00 00 00 00 00 07 19 08 03 1e   ................
+|   3968: 3c 40 09 1e b8 51 eb 85 1f 68 69 63 63 75 70 25   <@...Q...hiccup%
+|   3984: 03 14 01 01 01 08 00 00 00 00 00 00 00 00 00 00   ................
+|   4000: 00 00 07 19 08 02 14 28 40 09 1e b8 51 eb 85 1f   .......(@...Q...
+|   4016: 68 69 63 63 75 70 24 02 14 09 01 01 08 00 00 00   hiccup$.........
+|   4032: 00 00 00 00 00 00 00 00 00 07 19 08 0a 14 40 09   ..............@.
+|   4048: 1e b8 51 eb 85 1f 68 69 63 63 75 70 22 01 14 08   ..Q...hiccup....
+|   4064: 08 08 08 00 00 00 00 00 00 00 00 00 00 00 00 07   ................
+|   4080: 19 08 40 09 1e b8 51 eb 85 1f 68 69 63 63 75 70   ..@...Q...hiccup
+| page 3 offset 8192
+|      0: 0a 00 00 00 0a 0f aa 00 0f fa 0f f2 0f e9 0f e0   ................
+|     16: 0f d7 0f ce 0f c5 0f bc 0f b3 0f aa 00 00 00 00   ................
+|   4000: 00 00 00 00 00 00 00 00 00 00 08 05 01 01 00 01   ................
+|   4016: 09 5a 0a d8 05 01 01 00 01 08 50 09 08 05 01 01   .Z........P.....
+|   4032: 00 01 07 46 08 08 05 01 01 00 01 06 3c 07 08 05   ...F........<...
+|   4048: 01 01 00 01 05 32 06 08 05 01 01 00 01 04 28 05   .....2........(.
+|   4064: 08 05 01 02 60 01 03 1e 04 08 05 01 01 00 01 02   ....`...........
+|   4080: 14 03 07 05 09 01 00 01 0a 02 05 05 08 08 00 09   ................
+| page 4 offset 12288
+|      0: 0a 00 00 00 0a 0f cf 00 0f fc 0f f7 0f f2 0f ed   ................
+|     16: 0f e8 0f e3 0f de 0f d9 0f d4 0f cf 00 00 00 00   ................
+|   4032: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 04   ................
+|   4048: 03 08 01 0a 04 03 08 01 09 04 03 08 01 08 04 03   ................
+|   4064: 08 01 07 04 03 08 01 06 04 03 08 01 05 04 03 08   ................
+|   4080: 01 04 04 03 08 01 03 04 03 08 01 02 03 03 08 09   ................
+| page 5 offset 16384
+|      0: 0d 00 00 00 00 10 00 00 00 00 00 00 00 00 00 00   ................
+| end crash-8391315d75edff.db
+}]} {}
+
+do_catchsql_test 7.1 {
+  SELECT * FROM sqlite_master;
+} {1 {malformed database schema (t1x1) - invalid rootpage}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 8.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 2048 pagesize 512 filename a.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 02 00 01 01 00 40 20 20 ff ff 00 0c 00 00 00 07   .....@  ........
+|     32: 0b 00 00 00 00 00 00 00 00 00 00 08 9c 00 00 04   ................
+|     48: 00 00 00 e0 09 00 00 01 00 00 00 01 00 00 00 00   ................
+|     64: 00 00 00 00 f2 ff 00 00 00 00 00 00 00 00 00 00   ................
+|     80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0c   ................
+|     96: 00 2e 2c 50 0d 00 00 00 06 01 06 00 01 da 01 b0   ..,P............
+|    112: 05 56 01 86 01 2a 01 06 00 00 00 00 00 06 00 00   .V...*..........
+|    128: 00 ff 00 00 ff ff ff e1 00 00 00 00 00 00 00 00   ................
+|    144: 00 00 00 00 00 00 00 00 00 01 00 00 00 00 00 00   ................
+|    160: 00 00 00 00 00 00 00 00 f2 00 00 00 00 00 00 00   ................
+|    176: 00 00 f9 ff ff ff ff ff ff ff 00 00 00 5f 00 fb   ............._..
+|    192: 00 00 00 00 00 00 00 00 00 e1 ff 00 00 00 00 00   ................
+|    208: 00 00 10 00 00 00 00 00 1e 00 00 00 fe 00 00 00   ................
+|    224: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ca 00   ................
+|    240: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 35   ...............5
+|    256: 00 00 00 00 ef ff 22 07 06 17 11 11 01 30 39 38   .............098
+|    272: 62 6c 65 74 38 38 74 04 43 52 45 41 54 45 20 54   blet88t.CREATE T
+|    288: 41 42 4c 45 20 74 34 28 87 29 2a 06 06 17 13 11   ABLE t4(.)*.....
+|    304: 01 3f 69 4f 64 65 78 74 33 78 74 40 05 43 52 45   .?iOdext3xt@.CRE
+|    320: 41 54 45 20 49 6e 44 45 58 20 74 33 78 20 4f 4e   ATE InDEX t3x ON
+|    336: 20 74 33 28 78 29 2e 04 06 17 15 11 01 45 69 6e    t3(x).......Ein
+|    352: 00 04 00 00 34 63 64 74 3d 05 43 52 45 41 54 45   ....4cdt=.CREATE
+|    368: 20 49 4e 44 45 58 20 63 74 64 32 20 4f 4e 20 74    INDEX ctd2 ON t
+|    384: 32 28 0a 0c 44 29 28 05 06 17 11 11 01 3d 74 6c   2(..D)(......=tl
+|    400: 62 61 d4 65 33 74 33 04 43 52 45 41 54 45 20 54   ba.e3t3.CREATE T
+|    416: 41 42 4c 45 20 74 33 28 63 2c 78 2c 65 2c 66 29   ABLE t3(c,x,e,f)
+|    432: 28 02 06 17 11 11 01 3d 74 61 62 6c 65 74 32 74   (......=tablet2t
+|    448: 32 03 43 52 45 41 54 45 20 54 41 42 4c 45 20 74   2.CREATE TABLE t
+|    464: 32 28 63 2c 64 2c 65 2c 66 29 24 01 06 17 11 11   2(c,d,e,f)$.....
+|    480: 01 35 74 60 62 6c 65 74 31 74 31 02 43 52 45 41   .5t`blet1t1.CREA
+|    496: 54 45 20 54 41 42 4c 45 20 74 30 28 61 2c 62 29   TE TABLE t0(a,b)
+| page 2 offset 512
+|      0: 0d 00 ff 11 04 01 cf 80 01 fa 01 09 00 de 01 cf   ................
+|     16: 00 00 00 00 00 00 00 00 00 01 00 00 00 00 00 00   ................
+|     32: 00 00 08 00 00 00 00 00 00 11 00 00 00 00 00 13   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 e0 ff ff   ................
+|     64: ff d2 ff ff ff 00 f8 ff ff ff 00 00 00 00 00 00   ................
+|     80: 00 ff ff 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|     96: 00 00 00 00 ff de 00 00 00 00 00 00 00 00 00 00   ................
+|    112: 00 00 00 00 00 00 00 00 00 00 00 00 00 40 00 00   .............@..
+|    128: 2a 00 00 00 00 00 00 00 00 f7 00 00 00 00 00 00   *...............
+|    144: 00 00 00 00 00 21 00 00 00 00 00 00 00 00 00 00   .....!..........
+|    160: 01 64 00 00 00 00 04 80 ff ff ff 00 00 00 00 00   .d..............
+|    176: 00 00 00 00 00 00 00 00 1f 00 00 00 00 00 00 00   ................
+|    192: 00 00 40 00 00 00 00 00 00 00 00 00 00 00 00 00   ..@.............
+|    208: b5 00 00 00 00 00 00 40 00 00 00 00 00 00 00 00   .......@........
+|    224: 00 00 00 f6 00 ee ff ff ff 00 00 00 00 00 00 00   ................
+|    272: f2 00 00 00 00 00 00 00 00 00 f9 ff ff ff ff ff   ................
+|    288: ff ff 00 00 00 5f 00 fb 00 00 00 00 00 00 00 00   ....._..........
+|    320: 1e 00 00 00 fe 00 00 00 00 00 00 00 00 00 00 00   ................
+|    336: 00 00 00 00 00 00 ca 00 00 00 00 00 00 00 ff ec   ................
+|    352: 00 00 00 00 00 00 00 32 00 00 00 00 ef ff 22 07   .......2........
+|    368: 06 17 11 11 01 30 74 61 62 6c 65 74 38 38 74 04   .....0tablet88t.
+|    384: 43 52 45 41 54 45 20 54 41 42 4c 45 20 8c cb d7   CREATE TABLE ...
+|    400: 78 d6 d5 f9 f9 17 13 11 01 3f 69 4f 64 65 78 74   x........?iOdext
+|    416: 33 78 74 33 05 43 52 45 41 54 45 26 49 6e 44 45   3xt3.CREATE&InDE
+|    432: 58 20 74 33 78 00 00 00 00 00 00 00 00 00 00 00   X t3x...........
+|    464: 00 00 00 00 00 13 76 65 6e 65 69 67 68 74 13 03   ......veneight..
+|    480: 03 40 07 07 15 00 54 45 20 49 4e 44 45 58 20 74   .@....TE INDEX t
+|    496: 31 63 64 20 4f 4e 20 74 ce d7 f5 f0 44 09 01 02   1cd ON t....D...
+| page 3 offset 1024
+|      0: 0d 00 00 00 48 01 54 00 01 f6 e2 ec 01 c5 01 aa   ....H.T.........
+|     16: 30 34 28 87 29 32 06 f5 16 13 11 01 8e 61 24 64   04(.)2.......a$d
+|     32: 65 78 74 37 78 1f 33 6d 6d 6d 6d 6d 00 00 04 06   ext7x.3mmmmm....
+|     48: 6d 41 6d 6d 6e 6d 6d 00 00 02 00 6d 6d 6d 6d 6d   mAmmnmm....mmmmm
+|     64: 15 11 01 45 45 45 45 45 45 45 45 45 45 45 45 45   ...EEEEEEEEEEEEE
+|     80: 45 45 45 45 45 45 45 45 45 45 45 00 45 63 74 64   EEEEEEEEEEE.Ectd
+|     96: 34 20 4f 4e 20 61 62 6c 5d 74 38 38 74 04 43 52   4 ON abl]t88t.CR
+|    112: 45 41 54 45 20 54 41 42 4c 45 20 74 34 28 87 29   EATE TABLE t4(.)
+|    128: 2a 06 06 13 13 01 00 00 00 4f 64 6e 78 74 33 44   *........Odnxt3D
+|    144: 74 13 05 43 52 45 41 54 45 20 49 6e 44 45 00 00   t..CREATE InDE..
+|    160: 00 00 00 00 00 00 00 f9 ff ff ff ff ff ff ff 00   ................
+|    176: 00 00 5f 00 fb 00 00 2d 00 00 00 00 00 00 00 00   .._....-........
+|    192: 00 00 00 00 00 00 00 00 00 00 00 00 00 1e 00 00   ................
+|    208: 00 fe 00 00 00 00 17 15 11 01 45 69 6e 64 65 2e   ..........Einde.
+|    224: 5b 38 63 64 74 3d 05 43 52 45 41 54 45 20 49 4e   [8cdt=.CREATE IN
+|    240: 44 45 58 20 63 20 64 32 20 4f 4e 20 74 32 28 0a   DEX c d2 ON t2(.
+|    256: 0c 44 32 05 00 10 00 00 11 11 3d 74 6c 62 61 d4   .D2.......=tlba.
+|    272: 65 33 74 33 04 43 52 45 41 54 45 20 54 41 42 4c   e3t3.CREATE TABL
+|    288: 45 20 74 36 ff ff 7f ff 43 52 45 41 54 45 20 49   E t6....CREATE I
+|    304: 73 71 6c 69 74 65 5f 73 65 71 75 65 6e 63 65 28   sqlite_sequence(
+|    320: 0a 0c 44 29 28 05 06 17 11 11 01 3d 74 6c 62 61   ..D)(......=tlba
+|    336: 20 00 00 00 33 04 43 52 45 41 54 45 20 54 41 42    ...3.CREATE TAB
+|    352: 4c 45 20 74 33 28 63 2c 78 2c 65 2c 66 29 28 02   LE t3(c,x,e,f)(.
+|    368: 06 00 00 7f ff 40 41 54 45 20 49 6e 44 45 58 20   .....@ATE InDEX 
+|    384: 74 33 78 20 4f 4e 20 74 31 28 78 29 2e 04 06 17   t3x ON t1(x)....
+|    400: 15 11 01 45 69 6e 64 65 2e 74 34 63 64 74 3d 05   ...Einde.t4cdt=.
+|    416: 00 00 00 00 00 00 00 00 00 00 00 4d 00 00 00 00   ...........M....
+|    432: 01 00 00 00 00 00 00 05 00 00 10 00 00 00 00 00   ................
+|    448: 00 01 00 00 00 00 01 00 00 00 00 07 40 14 00 00   ............@...
+|    464: 00 00 21 00 40 18 00 00 00 00 00 00 40 1c 00 00   ..!.@.......@...
+|    480: 00 00 ff ff ff 00 00 00 5f 00 fb 00 00 2d 00 00   ........_....-..
+|    496: 00 00 00 1e 00 00 00 fe 00 00 64 00 00 ff fb 02   ..........d.....
+| page 4 offset 1536
+|      0: 0d 00 39 00 00 02 00 00 00 00 00 00 00 00 00 00   ..9.............
+| end a.db
+}]} {}
+
+set res {1 {database disk image is malformed}}
+ifcapable oversize_cell_check {
+  set res {1 {no such table: t3}}
+}
+do_catchsql_test 8.1 {
+  PRAGMA writable_schema=ON; -- bypass improved sqlite_master consistency checking
+  INSERT INTO t3 SELECT * FROM t2;
+} $res
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 9.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 8192 pagesize 4096 filename crash-ab10597e4e1c32.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 00   .....@  ........
+|     96: 00 00 00 00 0d 00 00 00 01 0f d6 00 0f d6 00 00   ................
+|   4048: 00 00 00 00 00 00 28 01 06 17 11 11 01 3d 74 61   ......(......=ta
+|   4064: 62 6c 65 74 31 74 31 02 43 52 45 41 54 45 20 54   blet1t1.CREATE T
+|   4080: 41 42 4c 45 20 74 31 28 61 2c 62 2c 63 2c 64 29   ABLE t1(a,b,c,d)
+| page 2 offset 4096
+|      0: 0d 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+| end crash-ab10597e4e1c32.db
+}]} {}
+
+do_execsql_test 9.1 {
+  SAVEPOINT one;
+}
+do_catchsql_test 9.3 {
+  INSERT INTO t1(b,c) VALUES(5,6);
+} {1 {database disk image is malformed}}
+do_execsql_test 9.3 {
+  ROLLBACK TO one;
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 10.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 180224 pagesize 4096 filename crash-41390d95d613b6.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 00   .....@  ........
+|     96: 00 00 00 00 0d 00 00 00 04 0e e2 00 0f 96 0f 44   ...............D
+|    112: 0f 10 0e e2 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   3808: 00 00 2c 14 06 17 15 11 01 41 69 6e 64 65 78 74   ..,......Aindext
+|   3824: 41 78 33 74 31 06 43 52 45 41 54 45 20 49 4e 44   Ax3t1.CREATE IND
+|   3840: 45 58 20 74 31 78 32 20 4f 4e 20 74 31 28 62 29   EX t1x2 ON t1(b)
+|   3856: 32 03 06 17 15 11 01 4d 69 6e 64 65 78 74 31 88   2......Mindext1.
+|   3872: 31 74 31 05 43 52 45 41 54 45 20 49 4e 44 45 58   1t1.CREATE INDEX
+|   3888: 20 74 31 78 31 20 4f 4e 20 74 31 28 67 2b 68 2c    t1x1 ON t1(g+h,
+|   3904: 6a 2d 6b 29 50 02 06 17 2b 2b 01 59 74 61 62 6c   j-k)P...++.Ytabl
+|   3920: 65 73 71 6c 69 74 65 5e 73 65 71 74 65 6e 63 65   esqlite^seqtence
+|   3936: 73 71 6c 69 74 65 5f 73 65 71 75 65 6e 63 65 04   sqlite_sequence.
+|   3952: 43 52 45 41 54 45 20 54 41 42 4c 45 20 73 71 6c   CREATE TABLE sql
+|   3968: 69 74 65 5f 73 65 71 75 65 6e 63 65 28 6e 61 6d   ite_sequence(nam
+|   3984: 65 2c 73 65 71 29 68 00 07 17 11 11 01 81 3b 74   e,seq)h.......;t
+|   4000: 61 62 6c 65 74 31 74 31 03 43 52 45 41 54 45 20   ablet1t1.CREATE 
+|   4016: 54 41 42 4c 45 20 74 31 28 61 20 49 4e 54 45 47   TABLE t1(a INTEG
+|   4032: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 20 41   ER PRIMARY KEY A
+|   4048: 55 54 4f 49 4e 43 52 45 4d 45 4e 54 2c 0a 62 2c   UTOINCREMENT,.b,
+|   4064: 63 2c 64 2c 65 2c 66 2c 67 2c 68 2c 6a 2c 6b 2c   c,d,e,f,g,h,j,k,
+|   4080: 6c 2c 6d 2c 6e 2c 6f 2c 70 2c 71 2c 72 2c 73 29   l,m,n,o,p,q,r,s)
+| page 2 offset 4096
+|      0: 01 00 00 00 00 01 00 00 10 00 01 00 00 00 00 01   ................
+|     16: 00 00 00 00 02 00 0f f0 00 15 00 00 00 03 02 00   ................
+|     32: 00 00 d9 05 00 00 00 03 02 00 00 00 00 05 00 00   ................
+|     48: 10 03 02 00 00 00 00 05 00 00 00 03 02 00 00 00   ................
+|     64: 00 05 00 00 00 02 62 00 00 00 00 05 00 00 00 03   ......b.........
+|     80: 02 00 00 00 00 05 00 00 00 03 02 00 00 00 00 05   ................
+|     96: 00 00 00 03 02 00 00 00 00 05 00 00 00 03 05 00   ................
+|    112: 00 00 03 03 01 00 00 23 02 00 00 4f 00 02 00 00   .......#...O....
+|    128: 10 25 02 00 00 00 00 03 00 00 00 23 02 00 00 00   .%.........#....
+|    144: 00 03 00 00 00 23 02 00 00 00 00 03 00 00 00 23   .....#.........#
+|    160: 05 00 08 90 06 05 00 00 00 06 01 ff 00 00 00 03   ................
+|    176: 00 00 00 06 02 00 00 00 00 02 ff 00 00 00 00 00   ................
+| page 3 offset 8192
+|      0: 05 00 00 00 09 0f d0 00 00 00 00 19 0f fb 0f f6   ................
+|     16: 0f f1 10 ec ec e7 0f e2 0f dc 0f d6 0f 00 00 00   ................
+|   1072: 00 97 4c 0a 24 00 ae 00 00 00 00 00 00 00 00 00   ..L.$...........
+|   4048: 00 00 00 16 83 39 ff ff ff 14 81 16 00 00 00 12   .....9..........
+|   4064: 81 02 00 00 00 10 6e 00 00 00 0e 5a 00 00 00 0c   ......n....Z....
+|   4080: 46 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   F...............
+| page 4 offset 12288
+|   1072: 97 4d 32 14 00 ae 00 00 00 00 00 00 00 00 00 00   .M2.............
+|   4080: 00 00 00 00 00 00 00 07 01 03 11 02 74 31 00 bd   ............t1..
+| page 5 offset 16384
+|      0: fa 0f 7c 00 0a 0f 74 00 0f f9 0f eb 0f dd 0f cf   ..|...t.........
+|     16: 0f c1 0f b3 0f a4 0e 94 0f 84 0f 74 0f 74 0f 74   ...........t.t.t
+|     32: 0f 74 0f 64 0f 00 00 00 00 00 00 00 00 00 00 00   .t.d............
+|   3952: 00 00 00 00 07 05 00 00 00 02 00 be 0f 8c 10 07   ................
+|   3968: ff ff 00 00 07 05 00 00 00 02 00 aa 0f 9b f0 08   ................
+|   3984: c8 00 00 00 37 06 00 00 00 01 00 96 0f ac 00 08   ....7...........
+|   4000: 00 00 00 b3 07 15 00 10 00 02 00 82 0f ba 00 07   ................
+|   4016: 00 00 00 06 05 00 00 00 01 6e 0f c8 00 07 00 00   .........n......
+|   4032: 00 06 05 00 00 00 01 5a 03 f6 00 07 00 00 00 06   .......Z........
+|   4048: 05 00 00 00 01 46 0f e4 00 07 00 00 10 06 05 00   .....F..........
+|   4064: 00 00 01 32 10 02 00 07 00 00 00 07 05 00 00 00   ...2............
+|   4080: 01 1d ff ff ff 07 10 00 00 06 05 00 00 00 01 0a   ................
+| page 6 offset 20480
+|    624: 00 00 00 00 00 21 97 00 00 00 00 00 00 00 00 00   .....!..........
+|   1120: 00 00 00 00 00 24 57 3e 00 00 00 00 00 00 00 00   .....$W>........
+|   1616: 00 00 00 00 1f 97 00 00 00 00 00 00 00 00 00 00   ................
+|   2112: 00 00 00 1e 97 3d 00 00 00 00 00 00 00 00 00 00   .....=..........
+|   2608: 00 1d 97 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+| page 8 offset 28672
+|   1184: 00 00 00 00 00 00 00 00 00 97 4d 1e 13 ff ae 7c   ..........M....|
+|   4080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 90   ................
+| page 9 offset 32768
+|    256: 0d 01 c0 00 01 04 30 00 04 30 00 00 00 00 00 00   ......0..0......
+| page 10 offset 36864
+|      0: 0d 00 22 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 05   ................
+| page 12 offset 45056
+|      0: 0d 00 00 00 01 04 30 00 00 00 00 00 00 00 00 00   ......0.........
+| page 14 offset 53248
+|      0: 0d 00 00 00 01 04 30 00 04 30 00 00 00 00 00 00   ......0..0......
+|   1072: 96 4d 5a 14 00 00 00 00 00 00 00 00 00 00 00 00   .MZ.............
+| page 16 offset 61440
+|      0: 0d 00 00 00 01 04 30 00 04 30 00 00 00 00 00 00   ......0..0......
+|   1072: 97 4d 6e 14 00 ae 7b ff ff ff ff 00 00 00 00 00   .Mn.............
+| page 18 offset 69632
+|   1056: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 97   ................
+|   1072: 4d 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   M...............
+|   4080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0d   ................
+| page 20 offset 77824
+|   1056: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 97   ................
+|   1072: 4d 81 16 14 00 ae 00 00 00 00 00 00 00 00 00 00   M...............
+|   4080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0f   ................
+| page 22 offset 86016
+|      0: 0d 00 00 00 01 04 2f 00 04 2f 01 00 00 00 00 00   ....../../......
+|   1056: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 97   ................
+|   1072: 4d 81 2a 14 00 00 00 00 00 00 00 00 00 00 00 00   M.*.............
+| page 24 offset 94208
+|   1072: 00 97 4c 0a 14 00 ae 7c 00 00 00 00 00 00 00 00   ..L....|........
+| page 25 offset 98304
+|   1056: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 97   ................
+|   1072: 4d 81 3e 14 00 ae 7c 00 00 18 ff 00 00 00 00 00   M.>...|.........
+| page 27 offset 106496
+|      0: 00 00 00 00 00 00 00 12 00 00 00 07 00 00 00 1d   ................
+|     16: 00 00 00 09 00 00 00 1f 00 00 00 0b 00 00 00 21   ...............!
+|     32: 00 00 00 0d 00 10 00 25 00 00 00 0f 00 00 00 27   .......%.......'
+|     48: 00 00 00 11 00 00 00 00 00 00 00 00 00 00 00 00   ................
+| page 32 offset 126976
+|   2512: 00 00 00 00 00 00 00 45 21 00 00 00 00 00 00 00   .......E!.......
+| page 35 offset 139264
+|      0: 00 0a 08 44 00 05 02 77 00 0e 11 0a 92 00 00 00   ...D...w........
+|   1120: 00 00 00 00 00 20 97 00 00 00 00 00 00 00 00 00   ..... ..........
+|   1616: 00 00 00 00 22 00 00 00 00 00 00 00 00 00 00 00   ................
+|   2608: 00 00 00 97 3d 04 00 00 00 00 00 00 00 00 00 00   ....=...........
+|   3104: 00 1c 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   3600: 00 97 3d 04 ae 7c 00 00 00 00 00 00 00 00 00 00   ..=..|..........
+|   4080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 1a   ................
+| page 36 offset 143360
+|      0: 0a 08 44 00 04 02 00 00 00 00 00 00 00 00 00 00   ..D.............
+|   1120: 00 00 00 00 00 2a 97 3e 04 00 00 00 00 00 00 00   .....*.>........
+|   1616: 00 00 00 00 2c 97 3e 00 00 00 00 00 00 00 00 00   ....,.>.........
+|   2112: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 38   ...............8
+|   2128: 00 00 05 cd 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   3600: 00 97 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+| page 38 offset 151552
+|   2464: 00 00 00 00 00 00 00 00 00 6e 00 00 00 00 00 00   .........n......
+| page 40 offset 159744
+|   2512: 00 00 00 00 00 00 00 00 82 00 00 00 00 00 00 00   ................
+| page 42 offset 167936
+|   2512: 00 00 00 00 00 00 00 96 00 00 00 00 00 00 00 00   ................
+| page 44 offset 176128
+|   2512: 00 00 00 00 00 00 00 00 aa 00 00 00 00 00 00 00   ................
+| end crash-41390d95d613b6.db
+}]} {}
+
+do_catchsql_test 10.1 {
+  PRAGMA writable_schema=ON; -- bypass improved sqlite_master consistency checking
+  SELECT * FROM t1 WHERE a<='2019-05-09' ORDER BY a DESC;
+} {1 {database disk image is malformed}}
+
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 11.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 595 pagesize 512 filename x.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 02 00 00 01 00 40 20 20 00 01 00 0c 00 00 00 07   .....@  ........
+|     32: 00 00 00 05 07 a1 1f fa 00 00 00 08 00 00 00 04   ................
+|     48: 00 00 01 00 00 49 00 00 00 00 00 05 00 00 00 00   .....I..........
+|     80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 1c   ................
+|     96: 00 2e 2c 50 0d 00 00 00 06 01 06 00 01 da 01 b0   ..,P............
+|    112: 01 56 01 86 01 2a 01 06 00 00 62 00 00 00 00 00   .V...*....b.....
+|    128: 00 ed e2 78 74 64 33 ff 43 52 45 41 54 45 20 49   ...xtd3.CREATE I
+|    144: 4e 44 45 58 20 74 33 78 20 4f 4e 20 74 33 28 38   NDEX t3x ON t3(8
+|    160: 29 2e 04 06 17 15 11 01 45 69 6e 64 65 68 74 32   ).......Eindeht2
+|    176: 63 64 74 31 e5 43 52 45 41 54 45 20 49 4e 44 45   cdt1.CREATE INDE
+|    192: 58 20 74 32 63 c4 20 4f 4e 20 74 32 28 63 2c 64   X t2c. ON t2(c,d
+|    208: 29 28 05 06 17 01 11 11 3d 74 61 6c 36 74 62 74   )(......=tal6tbt
+|    224: 65 32 04 43 52 45 41 54 45 20 54 41 42 4c 45 20   e2.CREATE TABLE 
+|    240: 74 00 04 00 00 00 00 00 00 00 00 00 00 00 00 00   t...............
+|    256: 00 00 00 00 00 00 22 07 06 17 11 11 01 30 e8 03   .............0..
+|    272: 62 6c 65 74 34 74 35 02 43 52 45 41 54 45 20 54   blet4t5.CREATE T
+|    288: 41 42 4c 45 20 74 34 28 94 29 2a 06 06 17 13 11   ABLE t4(.)*.....
+|    304: 01 3f 69 33 74 6e 65 78 78 74 64 33 ff 43 52 45   .?i3tnexxtd3.CRE
+|    320: 41 54 45 20 49 4e 44 45 58 20 74 33 78 20 4f 4e   ATE INDEX t3x ON
+|    336: 20 74 31 28 38 29 2e 04 06 17 15 11 01 45 69 6e    t1(8).......Ein
+|    352: 64 65 68 74 32 63 64 74 31 e5 43 52 45 41 54 45   deht2cdt1.CREATE
+|    368: 20 49 4e 44 45 58 20 74 32 63 c4 20 4f 4e 20 74    INDEX t2c. ON t
+|    384: 32 28 63 2c 64 29 28 05 06 17 01 11 11 3d 74 61   2(c,d)(......=ta
+|    400: 6c 32 74 62 74 65 32 04 43 52 45 41 54 45 20 54   l2tbte2.CREATE T
+|    416: 41 42 4c 45 20 74 33 28 63 2c 78 2c 65 2c 66 29   ABLE t3(c,x,e,f)
+|    432: 28 02 06 17 11 11 01 3d 74 61 9e 93 65 74 32 74   (......=ta..et2t
+|    448: 32 03 43 52 45 41 54 45 20 54 41 42 4c 45 20 74   2.CREATE TABLE t
+|    464: 32 28 63 2c 64 2c 65 2c 66 29 24 01 06 17 11 11   2(c,d,e,f)$.....
+|    480: 01 35 55 61 62 6c 88 74 31 74 31 02 43 52 45 41   .5Uabl.t1t1.CREA
+|    496: 54 45 20 54 41 42 4c 45 20 74 31 28 61 2c 62 29   TE TABLE t1(a,b)
+| page 2 offset 512
+|      0: 0d 00 00 00 0d 25 00 01 cf 00 01 fa 01 f3 01 de   .....%..........
+|     16: 01 00 00 00 fd 00 00 0d 00 00 00 00 45 20 54 41   ............E TA
+|     32: 42 4c 45 20 74 34 28 94 29 2a 06 06 17 13 11 01   BLE t4(.)*......
+|     48: 3f 69 33 74 6e 65 78 78 74 64 33 ff 43 52 45 a0   ?i3tnexxtd3.CRE.
+|     64: a0 a0 a0 a0 a0 a0 a0 a0 a0 a0 a0 a0 74 13 11 01   ............t...
+|     80: 49 45 74 00 00 00 00 00 00 00 00 00 00 00 00 00   IEt.............
+| end x.db
+}]} {}
+
+do_catchsql_test 11.1 {
+  PRAGMA writable_schema=ON; -- bypass improved sqlite_master consistency checking
+  DELETE FROM t3 WHERE x IN (SELECT x FROM t4);
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 12.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 12288 pagesize 4096 filename crash-e6d070858a3a85.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 00   .....@  ........
+|     96: 00 00 00 00 0d 00 00 00 02 0f 8f 00 0f bf 0f 8f   ................
+|   3968: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 2e   ................
+|   3984: 02 06 17 15 11 01 45 69 6e 64 65 78 74 31 63 62   ......Eindext1cb
+|   4000: 74 31 03 43 52 45 41 54 45 20 49 4e 44 45 58 20   t1.CREATE INDEX 
+|   4016: 74 31 63 62 20 4f 4e 20 74 31 28 63 2c 62 29 3f   t1cb ON t1(c,b)?
+|   4032: 01 06 17 11 11 01 6b 74 61 62 6c 65 74 31 74 31   ......ktablet1t1
+|   4048: 02 43 52 45 41 54 45 20 54 41 42 4c 45 20 74 31   .CREATE TABLE t1
+|   4064: 28 61 20 49 4e 54 2c 20 62 20 49 4e 54 2c 20 43   (a INT, b INT, C
+|   4080: 20 49 4e 54 20 44 45 46 41 55 4c 54 20 31 36 29    INT DEFAULT 16)
+| page 2 offset 4096
+|      0: 0d 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4000: 00 00 00 00 00 00 00 00 07 0b 04 01 01 01 63 63   ..............cc
+|   4016: 11 05 0a 04 00 00 01 11 05 09 04 08 08 01 0f 05   ................
+|   4032: 08 04 00 00 01 01 56 07 04 01 08 01 07 10 07 06   ......V.........
+|   4048: 14 01 01 01 06 08 10 06 05 04 f5 00 01 05 10 07   ................
+|   4064: 04 04 01 01 01 04 03 10 06 03 04 01 09 01 03 10   ................
+|   4080: 06 02 04 01 00 01 02 10 06 01 04 09 01 01 02 10   ................
+| page 3 offset 8192
+|      0: 0a 00 00 00 0b 0f b0 00 0f f9 0f f2 0f eb 0f e4   ................
+|     16: 0f dd 0f d6 0f 9f 0f c7 0f be 00 00 00 00 00 00   ................
+|   4016: 07 04 01 01 01 11 e2 0b 06 04 91 00 01 11 0a 07   ................
+|   4032: 04 01 01 01 10 08 06 07 04 01 01 01 10 04 04 06   ................
+|   4048: 04 01 01 09 10 02 06 04 01 0a 01 10 00 00 00 00   ................
+| end crash-e6d070858a3a85.db
+}]} {}
+
+do_catchsql_test 12.1 {
+  SELECT CAST((SELECT b FROM t1 WHERE 16=c) AS int) FROM t1 WHERE 16=c;
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 13.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 8192 pagesize 4096 filename crash-81dd2952aef34f.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 02   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 00 00 00 01 0f c4 00 0f c4 00 00   ................
+|   4032: 00 00 00 00 3a 11 06 17 11 11 01 61 74 61 62 6c   ....:......atabl
+|   4048: 65 74 31 74 31 02 43 52 45 41 54 45 20 54 41 42   et1t1.CREATE TAB
+|   4064: 4c 45 20 74 31 28 61 20 49 4e 54 45 47 45 52 20   LE t1(a INTEGER 
+|   4080: 50 52 49 4d 41 52 59 20 4b 45 59 2c 62 2c 63 29   PRIMARY KEY,b,c)
+| page 2 offset 4096
+|      0: 0d 07 70 00 02 0f eb 00 0f fa 00 00 00 00 00 00   ..p.............
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 05 bf ff ff ff   ................
+|   4080: ff ff ff ff ff 04 00 01 00 02 04 01 00 00 00 00   ................
+| end crash-81dd2952aef34f.db
+}]} {}
+
+do_catchsql_test 13.1 {
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x-2019 FROM c WHERE x<2)
+    INSERT INTO t1(b,c) SELECT last_insert_rowid(), x FROM c;
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 14.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 512 pagesize 65536 filename clusterfuzz-testcase-minimized-sqlite3_dbfuzz2_fuzzer-4806406219825152
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 00 01 02 01 00 40 20 20 00 63 2e 78 00 00 00 07   .....@  .c.x....
+|     32: 00 00 00 00 00 00 00 00 00 00 00 08 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 01 00 35 05 43 00 04 00 00 00   ........5.C.....
+|     80: 00 00 00 00 00 00 00 00 08 00 00 00 00 00 00 0c   ................
+|     96: 00 2e 2c 50 0d 00 00 00 03 00 00 00 01 da 01 b0   ..,P............
+|    112: 01 56 01 86 01 2a 01 02 00 00 00 00 00 00 00 1c   .V...*..........
+|    128: 00 38 80 b2 e6 0e 00 00 00 00 00 00 00 00 00 10   .8..............
+|    144: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01   ................
+|    160: 00 00 00 00 00 00 00 00 00 00 00 00 45 20 54 41   ............E TA
+|    256: 00 00 00 00 00 00 22 07 06 17 11 11 01 35 74 61   .............5ta
+|    272: 62 6c 00 10 00 00 34 07 43 52 54 45 20 54 41 42   bl....4.CRTE TAB
+|    288: 4c 45 20 74 33 28 63 2e 78 2c 65 2c 66 15 28 3a   LE t3(c.x,e,f.(:
+|    304: 06 17 11 11 01 65 78 8c cc 87 85 35 05 43 72 45   .....ex....5.CrE
+|    320: 41 54 48 20 49 4e 44 45 58 20 74 33 78 20 4f 4e   ATH INDEX t3x ON
+|    336: 20 74 33 28 78 39 2e 04 06 17 15 11 01 45 69 6e    t3(x9.......Ein
+|    352: 64 65 78 74 32 63 64 74 32 05 43 52 45 41 54 45   dext2cdt2.CREATE
+|    368: 20 49 4e 44 45 58 20 74 32 63 64 20 4f 4e 20 74    INDEX t2cd ON t
+|    384: 32 28 63 2a 44 29 28 05 fa e8 ee ed 01 3d 74 63   2(c*D)(......=tc
+|    400: 62 6c 65 74 33 74 33 07 43 52 45 41 54 45 20 54   blet3t3.CREATE T
+|    416: 41 42 4c 45 20 74 33 28 63 2e 78 2c 65 2c 66 15   ABLE t3(c.x,e,f.
+|    432: 28 3a 06 17 11 11 01 3d 74 61 62 6c 65 74 32 74   (:.....=tablet2t
+|    448: 32 03 43 52 45 41 54 45 20 54 41 42 4c 45 20 74   2.CREATE TABLE t
+|    464: 32 28 63 2c 64 2c 65 2c 66 29 24 01 06 17 11 11   2(c,d,e,f)$.....
+|    480: 01 35 74 61 62 6c 65 74 31 74 31 02 43 52 45 41   .5tablet1t1.CREA
+|    496: 54 45 20 54 41 42 4c 45 20 74 31 28 61 2c 63 29   TE TABLE t1(a,c)
+| end clusterfuzz-testcase-minimized-sqlite3_dbfuzz2_fuzzer-4806406219825152
+}]} {}
+
+extra_schema_checks 0
+do_catchsql_test 14.1 {
+  PRAGMA integrity_check;
+} {1 {database disk image is malformed}}
+
+# If SQLITE_OMIT_ALTERTABLE is defined, omit this file.
+ifcapable altertable {
+  do_catchsql_test 14.2 {
+    ALTER TABLE t1 RENAME TO alkjalkjdfiiiwuer987lkjwer82mx97sf98788s9789s; 
+  } {1 {database disk image is malformed}}
+}
+extra_schema_checks 1
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 15.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 28672 pagesize 4096 filename crash-3afa1ca9e9c1bd.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 07   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 06 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 00 00 00 06 0e 88 00 0f b8 0f 6d   ...............m
+|    112: 0f 3a 0f 0b 0e d5 0e 88 01 00 00 00 00 00 00 00   .:..............
+|   3712: 00 00 00 00 00 00 00 00 4b 06 06 17 25 25 01 5b   ........K...%%.[
+|   3728: 74 61 62 6c 65 73 71 6c 69 74 65 5f 73 74 61 74   tablesqlite_stat
+|   3744: 31 73 71 6c 69 74 65 5f 73 74 61 74 31 07 43 52   1sqlite_stat1.CR
+|   3760: 45 41 54 45 20 54 41 42 4c 45 20 73 71 6c 69 74   EATE TABLE sqlit
+|   3776: 65 5f 73 74 61 74 31 28 74 62 6c 2c 69 64 78 2c   e_stat1(tbl,idx,
+|   3792: 73 74 61 74 29 34 05 06 17 13 11 01 53 69 6e 64   stat)4......Sind
+|   3808: 65 78 63 31 63 63 31 06 43 52 45 41 54 45 20 55   exc1cc1.CREATE U
+|   3824: 4e 49 51 55 45 20 49 4e 44 45 58 20 63 31 63 20   NIQUE INDEX c1c 
+|   3840: 4f 4e 20 63 31 28 63 2c 20 62 29 2d 04 06 17 13   ON c1(c, b)-....
+|   3856: 11 01 45 69 6e 64 65 78 63 31 64 63 31 05 43 52   ..Eindexc1dc1.CR
+|   3872: 45 41 54 45 20 49 4e 44 45 58 20 63 31 64 20 4f   EATE INDEX c1d O
+|   3888: 4e 20 63 31 28 64 2c 20 62 29 31 03 06 17 13 11   N c1(d, b)1.....
+|   3904: 01 4d 69 6e 64 65 78 62 31 63 62 31 05 43 52 45   .Mindexb1cb1.CRE
+|   3920: 41 54 45 20 55 4e 49 51 55 45 20 49 4e 44 45 58   ATE UNIQUE INDEX
+|   3936: 20 62 31 63 20 4f 4e 20 62 31 28 63 29 49 02 06    b1c ON b1(c)I..
+|   3952: 17 11 11 0f 7f 74 61 62 6c 65 63 31 63 31 03 43   .....tablec1c1.C
+|   3968: 52 45 41 54 45 20 54 41 42 4c 45 20 63 31 28 61   REATE TABLE c1(a
+|   3984: 20 49 4e 54 20 50 52 49 4d 41 52 59 20 4b 45 59    INT PRIMARY KEY
+|   4000: 2c 20 62 2c 20 63 2c 20 64 29 20 57 49 54 48 4f   , b, c, d) WITHO
+|   4016: 55 54 20 52 4f 57 49 44 46 01 06 17 11 11 01 79   UT ROWIDF......y
+|   4032: 74 61 62 6c 65 62 31 62 31 02 43 52 45 41 54 45   tableb1b1.CREATE
+|   4048: 20 54 41 42 4c 45 20 62 31 28 61 20 49 4e 54 20    TABLE b1(a INT 
+|   4064: 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 62 2c 20   PRIMARY KEY, b, 
+|   4080: 63 29 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44   c) WITHOUT ROWID
+| page 2 offset 4096
+|      0: 0a 00 00 00 07 0f ca 00 0f fa 0f f2 0f ea 0f e2   ................
+|     16: 0f da 00 00 00 01 00 00 00 00 00 00 00 00 00 00   ................
+|   4032: 00 00 00 00 00 00 00 00 00 00 07 04 01 0f 01 06   ................
+|   4048: 67 07 07 04 01 0f 01 06 66 06 07 04 01 0f 01 05   g.......f.......
+|   4064: 65 05 07 04 01 0f 01 04 64 04 07 04 01 0f 01 03   e.......d.......
+|   4080: 63 03 07 04 01 0f 01 02 62 0f 05 04 09 0f 09 61   c.......b......a
+| page 3 offset 8192
+|      0: 0a 00 00 00 07 0f bd 00 0f f9 0f ef 0f e5 0f db   ................
+|     16: 0f d1 0f c7 0f bd 00 00 00 00 01 00 00 00 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 00 00 00 00 00 09 05 01   ................
+|   4032: 0f 01 01 07 61 07 07 09 05 01 0f 01 01 06 61 06   ....a.........a.
+|   4048: 06 09 05 01 0f 01 01 05 61 05 05 09 05 01 0f 01   ........a.......
+|   4064: 01 04 61 04 04 09 05 01 0f 01 01 03 61 03 03 09   ..a.........a...
+|   4080: 05 01 0f 01 01 02 61 0f 02 06 05 09 0f 09 09 61   ......a........a
+| page 4 offset 12288
+|      0: 0a 00 00 00 07 0f d8 00 0f fc 0f f0 0f ea 0f e4   ................
+|     16: 0f de 0f d8 0f f6 00 00 00 00 00 00 00 00 00 00   ................
+|   4048: 00 00 00 00 00 00 00 00 05 03 01 01 07 07 05 03   ................
+|   4064: 01 01 06 06 05 03 01 01 05 05 05 03 01 01 04 04   ................
+|   4080: 05 03 01 01 03 03 05 03 01 01 0f 02 03 03 09 09   ................
+| page 5 offset 16384
+|      0: 0a 00 00 00 07 0f ca 00 0f fa 0f f2 0f ea 0f 00   ................
+|   4032: 00 00 00 00 00 00 00 00 00 00 07 04 01 0f 01 07   ................
+|   4048: 61 07 07 04 01 0f 01 06 61 06 07 04 01 0f 01 05   a.......a.......
+|   4064: 61 05 07 04 01 1f 01 04 61 04 07 04 01 0f 01 03   a.......a.......
+|   4080: 61 03 07 04 01 0f 01 02 61 02 05 04 09 0f 09 61   a.......a......a
+| page 6 offset 20480
+|      0: 0a 00 00 00 07 0f ca 00 0f fa 0f ea 0f e2 00 00   ................
+|   4032: 00 00 00 00 00 00 00 00 00 00 07 04 01 0f 01 07   ................
+|   4048: 61 07 07 04 01 0f 01 06 61 06 07 04 01 0f 01 05   a.......a.......
+|   4064: 61 05 07 04 01 0f 01 04 61 04 07 04 01 0f 01 03   a.......a.......
+|   4080: 61 03 07 04 01 0f 01 0f 61 02 05 04 09 0f 09 61   a.......a......a
+| page 7 offset 24576
+|      0: 0d 00 00 00 05 0f 1c 00 0f f0 0f e0 0f d3 0f c5   ................
+|     16: 0f b8 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 0b 05 04 11 11 13 62 31   ..............b1
+|   4032: 62 31 37 20 31 0c 04 04 11 13 13 62 31 62 31 63   b17 1......b1b1c
+|   4048: 37 20 31 0b 03 04 11 11 13 63 31 63 31 37 20 31   7 1......c1c17 1
+|   4064: 0e 02 04 11 13 07 63 31 63 31 64 37 20 31 20 31   ......c1c1d7 1 1
+|   4080: 0e 01 04 11 13 17 63 31 63 31 63 37 20 31 00 00   ......c1c1c7 1..
+| end crash-3afa1ca9e9c1bd.db
+}]} {}
+
+extra_schema_checks 0
+optimization_control db one-pass off
+do_catchsql_test 15.1 {
+  PRAGMA cell_size_check = 0;
+  UPDATE c1 SET c= NOT EXISTS(SELECT 1 FROM c1 ORDER BY (SELECT 1 FROM c1 ORDER BY a)) +10 WHERE d BETWEEN 4 AND 7;
+} {1 {database disk image is malformed}}
+extra_schema_checks 1
+do_execsql_test 15.2 {
+  PRAGMA integrity_check;
+} {/in database main/}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 16.0 {
+  CREATE TABLE t1(w, x, y, z, UNIQUE(w, x), UNIQUE(y, z));
+  INSERT INTO t1 VALUES(1, 1, 1, 1);
+
+  CREATE TABLE t1idx(x, y, i INTEGER, PRIMARY KEY(x)) WITHOUT ROWID;
+  INSERT INTO t1idx VALUES(10, NULL, 5);
+
+  PRAGMA writable_schema = 1;
+  UPDATE sqlite_master SET rootpage = (
+    SELECT rootpage FROM sqlite_master WHERE name='t1idx'
+  ) WHERE type = 'index';
+}
+
+extra_schema_checks 0
+db close
+sqlite3 db test.db
+extra_schema_checks 1
+
+do_catchsql_test 16.1 {
+  PRAGMA writable_schema = ON;
+  INSERT INTO t1(rowid, w, x, y, z) VALUES(5, 10, 11, 10, NULL);
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+# Test that corruption is reported from within a checkpoint if the 
+# expected final size of the database (according to the last commit
+# frame in the wal file) is greater than the combined initial sizes 
+# of the database and wal file.
+#
+if {[wal_is_capable]} {
+  reset_db
+  do_execsql_test 17.0 {
+    CREATE TABLE t1(o INTEGER PRIMARY KEY, t UNIQUE);
+    INSERT INTO t1(t) VALUES(randomblob(123));
+    INSERT INTO t1(t) SELECT randomblob(123) FROM t1;
+    INSERT INTO t1(t) SELECT randomblob(123) FROM t1;
+    INSERT INTO t1(t) SELECT randomblob(123) FROM t1;
+    INSERT INTO t1(t) SELECT randomblob(123) FROM t1;
+    INSERT INTO t1(t) SELECT randomblob(123) FROM t1;
+    INSERT INTO t1(t) SELECT randomblob(123) FROM t1;
+    INSERT INTO t1(t) SELECT randomblob(123) FROM t1;
+    INSERT INTO t1(t) SELECT randomblob(123) FROM t1;
+    INSERT INTO t1(t) SELECT randomblob(123) FROM t1;
+  
+    PRAGMA journal_mode = wal;
+    INSERT INTO t1 VALUES(-1, 'b');
+  } {wal}
+  
+  do_test 17.1 {
+    set fd [open test.db r+]
+    chan truncate $fd 2048
+    file size test.db
+  } {2048}
+  
+  do_catchsql_test 17.2 {
+    PRAGMA wal_checkpoint
+  } {1 {database disk image is malformed}}
+  
+  do_test 17.3 {
+    close $fd
+  } {}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 18.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 12288 pagesize 4096 filename crash-40d5739835cbdb.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 00   .....@  ........
+|     96: 00 00 00 00 0d 00 00 00 02 0f 4e 00 0f a2 0f 4e   ..........N....N
+|   3904: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 52 02   ..............R.
+|   3920: 07 17 11 11 01 81 0f 74 61 62 6c 65 74 32 74 32   .......tablet2t2
+|   3936: 03 43 52 45 41 54 45 20 54 41 42 4c 45 20 74 32   .CREATE TABLE t2
+|   3952: 28 61 20 49 4e 54 2c 20 62 20 49 4e 54 45 47 45   (a INT, b INTEGE
+|   3968: 52 2c 20 50 52 49 4d 41 52 59 20 4b 45 59 28 61   R, PRIMARY KEY(a
+|   3984: 2c 62 29 29 20 57 49 54 48 4f 55 54 20 52 4f 57   ,b)) WITHOUT ROW
+|   4000: 49 44 5c 01 07 16 11 11 01 81 23 74 61 62 6c 65   ID........#table
+|   4016: 74 31 74 31 02 43 52 45 41 54 45 20 54 41 42 4c   t1t1.CREATE TABL
+|   4032: 45 20 74 31 28 61 20 49 4e 54 20 50 52 49 4d 41   E t1(a INT PRIMA
+|   4048: 52 59 20 4b 45 59 2c 20 62 20 54 45 58 54 2c 20   RY KEY, b TEXT, 
+|   4064: 63 20 54 45 58 54 2c 20 64 20 49 4e 54 45 47 45   c TEXT, d INTEGE
+|   4080: 52 29 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44   R) WITHOUT ROWID
+| page 2 offset 4096
+|      0: 0a 00 00 00 06 0f a7 00 0f f4 0f e5 0f d5 0f c5   ................
+|     16: 0f b6 0f 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4000: 00 00 00 00 00 00 00 0f 05 01 15 13 01 06 65 7f   ..............e.
+|   4016: 25 6e 73 69 78 06 0e 05 01 13 15 03 b5 6f 64 64   %nsix........odd
+|   4032: 66 69 76 65 05 0f 05 01 15 15 01 04 65 76 65 61   five........evea
+|   4048: e6 6f 75 82 04 0f 05 01 13 17 01 03 6f 64 64 74   .ou.........oddt
+|   4064: 68 72 61 15 03 0e 05 01 15 12 01 02 64 76 64 6e   hra.........dvdn
+|   4080: 74 77 6f 02 00 00 00 00 00 00 00 00 00 00 00 00   two.............
+| page 3 offset 8192
+|   2816: 00 00 00 00 00 00 00 00 00 00 00 06 03 02 01 00   ................
+|   2832: c8 07 06 03 02 01 00 c7 11 06 03 02 01 02 a6 52   ...............R
+|   2848: 06 d5 02 01 10 c5 1b 06 03 02 00 ef c4 53 06 03   .............S..
+|   2864: 02 01 00 c3 22 06 04 02 01 00 c2 26 06 03 02 01   ...........&....
+|   2880: 00 c2 1e 02 b3 02 01 00 c0 3a 06 03 3c 01 00 bf   .........:..<...
+|   2896: 2c 06 03 02 01 00 be 27 00 83 02 01 01 bd 15 06   ,......'........
+|   2912: 03 02 01 00 bc 21 06 03 02 01 00 bb 54 16 13 02   .....!......T...
+|   2928: 01 09 9a 0a 06 03 02 01 00 b9 53 06 03 02 01 00   ..........S.....
+|   2944: b8 52 06 13 02 01 00 b7 1e 06 03 02 01 00 b6 34   .R.............4
+|   2960: 06 13 02 01 00 b5 3a 05 f3 12 01 00 b4 45 05 03   ......:......E..
+|   2976: 02 00 00 b4 6f 06 03 02 01 00 b2 03 06 03 02 01   ....o...........
+|   2992: 00 b1 63 06 03 02 01 00 b0 24 06 03 02 01 00 9f   ..c......$......
+|   3008: ac 06 03 02 01 00 a2 2f 07 03 02 01 01 ad 21 06   ......./......!.
+|   3024: 03 02 01 fb cd 5b 06 c0 01 f1 00 ab 23 06 03 02   .....[......#...
+|   3040: 01 00 aa 5b 06 03 02 01 00 a3 ce 06 02 03 01 00   ...[............
+|   3056: a8 0e 06 03 02 01 00 a7 0c 06 02 f1 01 00 a6 0d   ................
+|   3072: 06 03 02 01 00 95 25 06 03 02 01 00 a4 17 06 03   ......%.........
+|   3088: 02 01 00 a3 09 06 03 02 01 00 a2 51 06 03 02 02   ...........Q....
+|   3104: 00 a1 40 06 01 e2 00 00 a0 4b 06 13 02 00 00 9e   ..@......K......
+|   3120: 5d 06 03 02 01 10 9e 81 06 03 02 01 00 9d 42 06   ].............B.
+|   3136: 03 69 01 00 9c 48 06 03 02 01 00 9b 48 06 03 01   .i...H......H...
+|   3152: 01 00 9a 09 06 03 02 01 00 99 2f 06 03 02 01 00   ........../.....
+|   3168: 98 3a 06 03 02 01 00 97 24 06 03 02 01 00 96 4a   .:......$......J
+|   3184: 06 03 02 11 00 f9 50 02 93 02 01 00 94 2f 06 03   ......P....../..
+|   3200: 02 11 04 93 1a 06 03 01 04 e0 92 1a 06 03 02 01   ................
+|   3216: 00 91 27 06 03 02 01 00 90 23 06 03 02 01 00 8f   ..'......#......
+|   3232: 3b 06 03 02 01 00 8e 46 06 16 02 01 00 8d 1d 07   ;......F........
+|   3248: 23 12 01 00 8c 5a 06 03 02 01 00 8a 39 06 03 02   #....Z......9...
+|   3264: 00 ff 84 b5 06 03 02 01 00 89 07 06 03 02 11 00   ................
+|   3280: 88 02 06 03 02 01 00 87 19 06 03 02 01 00 86 4d   ...............M
+|   3296: 06 13 12 00 00 85 4b 06 03 02 01 00 84 37 06 13   ......K......7..
+|   3312: 02 01 00 83 2c 06 03 02 01 00 81 60 06 13 02 11   ....,......`....
+|   3328: 00 81 3b 06 03 02 01 0a b0 5a 06 03 01 01 7f 22   ..;......Z......
+|   3344: 05 03 01 01 7e 21 05 03 01 01 7d 0b 15 03 01 02   ....~!..........
+|   3360: 7b 08 05 03 06 91 7b 22 05 03 01 01 7a 58 05 03   ............zX..
+|   3376: 01 01 7a 4f 05 03 01 01 78 49 05 03 01 01 77 16   ..zO....xI....w.
+|   3392: 05 03 01 01 76 5f 05 03 01 01 75 0f 05 03 01 01   ....v_....u.....
+|   3408: 74 2f 05 03 01 01 3f 1f 05 03 01 02 72 14 05 03   t/....?.....r...
+|   3424: 00 f1 71 08 05 03 01 01 70 0c 05 03 01 47 7f 29   ..q.....p....G.)
+|   3440: 05 03 01 01 6e 57 05 03 01 01 6d 33 05 13 00 f1   ....nW....m3....
+|   3456: 6c 0b 05 03 01 01 6b 49 05 03 01 01 69 05 05 03   l.....kI....i...
+|   3472: 01 02 ed 23 00 00 01 00 00 00 00 00 00 00 00 00   ...#............
+| end crash-40d5739835cbdb.db
+}]} {}
+
+ifcapable json1 {
+do_catchsql_test 18.1 {
+  SELECT 
+    json_group_array(c) OVER win4 
+  FROM t1
+    WINDOW win4 AS (
+        ORDER BY a COLLATE nocase RANGE BETWEEN 1.0 PRECEDING AND CURRENT ROW
+    )
+} {1 {JSON cannot hold BLOB values}}
+} ;# ifcapable json1
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 19.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 20480 pagesize 4096 filename crash-f022eb0ce64d27.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 05   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 02 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 0f f8 00 04 0e d2 00 0f 08 0f d3   ................
+|    112: 0f ae 0e d2 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   3792: 00 00 34 04 06 17 0f 11 01 57 69 6e 64 65 78 61   ..4......Windexa
+|   3808: 74 31 05 43 52 45 41 54 45 20 55 4e 49 51 55 45   t1.CREATE UNIQUE
+|   3824: 20 49 4e 44 45 58 20 61 20 4f 4e 20 74 31 28 61    INDEX a ON t1(a
+|   3840: 2c 20 30 20 7c 20 61 29 81 23 01 07 17 11 11 01   , 0 | a).#......
+|   3856: 82 31 74 61 62 6c 65 74 31 74 31 02 43 52 45 41   .1tablet1t1.CREA
+|   3872: 54 45 20 54 41 42 4c 45 20 74 31 28 0a 20 20 20   TE TABLE t1(.   
+|   3888: 20 67 63 62 20 41 53 20 28 62 2a 31 29 2c 0a 20    gcb AS (b*1),. 
+|   3904: 20 20 20 61 20 49 34 54 45 47 45 52 20 50 52 49      a I4TEGER PRI
+|   3920: 4d 41 52 59 20 4b 45 59 2c 0a 20 20 20 20 67 63   MARY KEY,.    gc
+|   3936: 63 20 41 53 20 28 74 32 2b 30 29 2c 0a 20 20 20   c AS (t2+0),.   
+|   3952: 20 62 20 55 4e 49 51 55 45 2c 0a 20 20 20 20 67    b UNIQUE,.    g
+|   3968: 63 61 20 41 53 20 28 31 2a 61 2b 30 29 2c 0a 20   ca AS (1*a+0),. 
+|   3984: 20 20 20 74 32 20 55 4e 49 51 55 45 0a 20 20 29      t2 UNIQUE.  )
+|   4000: 20 57 49 54 48 4f 55 54 20 52 4f 57 49 44 23 03    WITHOUT ROWID#.
+|   4016: 06 17 37 11 01 00 69 6e 64 65 78 73 71 6c 69 74   ..7...indexsqlit
+|   4032: 65 5f 61 75 74 6f 69 6e 64 65 78 5f 74 31 5f 33   e_autoindex_t1_3
+|   4048: 74 31 02 23 02 06 17 37 11 01 00 69 6e 64 65 78   t1.#...7...index
+|   4064: 73 71 6c 69 74 65 5f 61 75 74 6f 69 6e 64 65 78   sqlite_autoindex
+|   4080: 5f 74 31 5f 32 74 31 02 00 00 00 08 00 00 00 00   _t1_2t1.........
+| page 2 offset 4096
+|      0: 0a 00 00 00 05 0f d8 00 0f f8 0f f8 9f e8 0f e0   ................
+|     16: 0f d8 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4048: 00 00 00 00 00 00 00 00 07 04 01 02 00 0f 13 88   ................
+|   4064: 07 04 01 02 00 0e 0f a0 07 04 01 02 00 0d 0b b8   ................
+|   4080: 07 04 01 02 00 0c 07 d0 07 04 01 02 00 0b 03 e8   ................
+| page 5 offset 16384
+|      0: 0a 00 00 00 05 0f e2 00 0f fa 0f f4 0f ee 0f e8   ................
+|     16: 0f e2 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4064: 00 00 05 03 01 01 0f 0f 05 03 01 01 0e 0e 05 03   ................
+|   4080: 01 01 0d 0d 05 03 01 01 0c 0c 05 03 01 01 0b 0b   ................
+| end crash-f022eb0ce64d27.db
+}]} {}
+
+do_execsql_test 19.1 {
+  PRAGMA writable_schema=ON;
+}
+do_catchsql_test 19.2 {
+  UPDATE t1 SET a=1;
+} {1 {database disk image is malformed}}
+
+reset_db
+do_execsql_test 19.3 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b TEXT, c INTEGER, d TEXT);
+  CREATE INDEX i1 ON t1((NULL));
+  INSERT INTO t1 VALUES(1, NULL, 1, 'text value');
+  PRAGMA writable_schema = on;
+  UPDATE sqlite_schema SET 
+      sql = 'CREATE INDEX i1 ON t1(b, c, d)', 
+      tbl_name = 't1', 
+      type='index' 
+  WHERE name='i1';
+}
+db close
+sqlite3 db test.db
+do_catchsql_test 19.4 {
+  PRAGMA integrity_check;
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 18.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 20480 pagesize 4096 filename crash-a4150b729051e4.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 05   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 04 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     64: 00 00 00 00 00 00 00 00 00 00 ff f0 00 00 00 00   ................
+|     96: 00 00 00 00 0d 00 00 00 04 0e e5 00 0f c2 0f 75   ...............u
+|    112: 0f 19 0e e5 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|   3808: 00 00 00 00 00 32 04 06 17 17 11 01 4b 69 6e 64   .....2......Kind
+|   3824: 65 78 74 31 61 62 63 74 31 05 43 52 45 41 54 45   ext1abct1.CREATE
+|   3840: 20 49 4e 44 45 58 20 74 31 61 62 63 20 4f 4e 20    INDEX t1abc ON 
+|   3856: 74 31 28 61 2c 62 2c 63 29 5a 03 06 17 25 25 01   t1(a,b,c)Z...%%.
+|   3872: 79 74 61 62 6c 65 73 71 6c 69 74 65 5f 73 74 61   ytablesqlite_sta
+|   3888: 74 34 73 71 6c 69 74 65 5f 73 74 61 74 34 04 43   t4sqlite_stat4.C
+|   3904: 52 45 41 54 45 20 54 41 42 4c 45 20 73 71 6c 69   REATE TABLE sqli
+|   3920: 74 65 5f 73 74 61 74 34 28 74 62 6c 2c 69 64 78   te_stat4(tbl,idx
+|   3936: 2c 6e 65 71 2c 6e 6c 74 2c 6e 64 6c 74 2c 73 61   ,neq,nlt,ndlt,sa
+|   3952: 6d 70 6c 65 29 4b 02 06 17 25 25 01 5b 74 61 62   mple)K...%%.[tab
+|   3968: 6c 65 73 71 6c 69 74 65 5f 73 74 61 74 31 73 71   lesqlite_stat1sq
+|   3984: 6c 69 74 65 5f 73 74 61 74 31 03 43 52 45 41 54   lite_stat1.CREAT
+|   4000: 45 20 54 41 42 4c 45 20 73 71 6c 69 74 65 5f 73   E TABLE sqlite_s
+|   4016: 74 61 74 31 28 74 62 6c 2c 69 64 78 2c 73 74 61   tat1(tbl,idx,sta
+|   4032: 74 29 3c 01 06 17 11 11 01 65 74 61 62 6c 65 74   t)<......etablet
+|   4048: 31 74 31 02 43 52 45 41 54 45 20 54 41 42 4c 45   1t1.CREATE TABLE
+|   4064: 20 74 31 28 61 20 54 45 58 54 2c 20 62 20 49 4e    t1(a TEXT, b IN
+|   4080: 54 2c 20 63 20 49 4e 54 2c 20 64 20 49 4e 54 29   T, c INT, d INT)
+| page 2 offset 4096
+|      0: 0d 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4000: 0b 07 05 13 01 01 01 62 63 64 64 06 0b 0c 06 05   .......bcdd.....
+|   4016: 13 02 01 01 64 65 66 01 59 09 0a 0c 05 05 13 03   ....def.Y.......
+|   4032: 01 01 64 65 66 02 6f 08 09 0c 04 05 13 02 01 01   ..def.o.........
+|   4048: 61 62 63 01 59 07 08 0c 03 05 13 02 01 01 87 62   abc.Y..........b
+|   4064: 63 00 ea 06 07 0c 02 05 13 02 01 01 61 62 63 00   c...........abc.
+|   4080: ea 06 06 0b 01 05 13 01 01 01 61 62 63 7b 04 04   ..........abc...
+| page 3 offset 8192
+|      0: 0d 00 00 00 01 0f e0 00 0f e1 00 00 00 00 00 00   ................
+|   4064: 00 1d 01 04 11 17 31 74 31 74 31 61 62 63 31 30   ......1t1t1abc10
+|   4080: 30 30 30 20 35 30 30 30 20 32 30 30 30 20 31 30   000 5000 2000 10
+| page 4 offset 12288
+|      0: 0d 00 00 00 07 0e ac 00 0f d1 0f a0 0f 6f 0f 3e   .............o.>
+|     16: 0f 0e 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   3744: 00 00 00 00 00 00 00 00 00 00 00 00 2f 07 07 11   ............/...
+|   3760: 17 1b 1b 1b 24 74 31 74 31 61 62 63 32 20 31 20   ....$t1t1abc2 1 
+|   3776: 31 20 31 35 20 36 20 36 20 36 32 20 35 20 36 20   1 15 6 6 62 5 6 
+|   3792: 36 05 13 02 01 01 64 65 66 02 37 08 05 2f 06 07   6.....def.7../..
+|   3808: 11 17 1b 1b 1b 24 74 41 74 31 61 62 63 32 20 31   .....$tAt1abc2 1
+|   3824: 20 31 20 31 35 20 35 20 55 20 35 32 20 34 20 35    1 15 5 U 52 4 5
+|   3840: 20 35 05 13 02 01 01 64 65 66 01 59 09 06 2e 05    5.....def.Y....
+|   3856: 07 11 17 1b 1b 1b 22 74 31 74 31 61 62 63 31 20   .......t1t1abc1 
+|   3872: 31 20 31 20 31 34 20 34 20 34 20 34 31 20 33 20   1 1 14 4 4 41 3 
+|   3888: 34 20 34 08 b3 cd f0 f1 62 63 64 64 06 07 2f 05   4 4.....bcdd../.
+|   3904: 07 11 17 1b 1b 1b 24 74 37 74 31 61 62 63 34 20   ......$t7t1abc4 
+|   3920: 31 20 31 20 31 30 20 33 20 33 20 33 30 20 32 20   1 1 10 3 3 30 2 
+|   3936: 33 20 33 05 13 02 01 01 61 62 63 01 59 07 04 2f   3 3.....abc.Y../
+|   3952: 03 07 11 17 1b 1b 1b 24 74 31 74 31 61 62 63 34   .......$t1t1abc4
+|   3968: 20 32 20 31 20 31 30 20 31 20 32 20 32 30 20 31    2 1 10 1 2 20 1
+|   3984: 20 32 20 32 05 13 02 01 01 61 62 63 00 ea 06 03    2 2.....abc....
+|   4000: 2f 02 07 11 17 1b 1b 1b 24 74 31 74 31 61 62 63   /.......$t1t1abc
+|   4016: 34 20 32 20 31 20 31 30 20 31 20 31 20 31 30 20   4 2 1 10 1 1 10 
+|   4032: 31 20 31 20 31 05 13 02 01 01 61 62 63 00 ea 05   1 1 1.....abc...
+|   4048: 02 2d 01 07 11 17 1b 1b 1b 20 74 31 74 31 61 62   .-....... t1t1ab
+|   4064: 63 34 20 31 20 31 20 31 30 20 30 20 30 1f 30 30   c4 1 1 10 0 0.00
+|   4080: 20 30 20 30 20 30 05 13 01 01 09 61 62 63 7b 04    0 0 0.....abc..
+| page 5 offset 16384
+|      0: 0a 00 00 00 07 0f a8 00 0f f5 00 00 00 00 00 00   ................
+|   4000: 00 00 00 00 00 00 00 00 0c 05 13 02 01 01 64 65   ..............de
+|   4016: 66 02 37 08 05 0c 05 13 02 01 01 64 65 66 01 59   f.7........def.Y
+|   4032: 09 06 0b 05 12 01 01 01 62 63 64 64 06 07 0c 05   ........bcdd....
+|   4048: 13 02 01 01 61 62 63 01 59 07 01 2c 05 13 02 01   ....abc.Y..,....
+|   4064: 01 61 62 63 00 ea 06 03 0c 05 13 02 01 01 61 62   .abc..........ab
+|   4080: 63 00 ea 05 00 00 00 00 00 00 00 00 00 00 00 00   c...............
+| end crash-a4150b729051e4.db
+}]} {}
+
+do_catchsql_test 18.1 {
+  SELECT a FROM t1 WHERE b GLOB b AND b GLOB '0^x]␅6␚xz]';
+} {1 {database disk image is malformed}}
+
+finish_test
diff --git a/test/corruptM.test b/test/corruptM.test
new file mode 100644
index 0000000000000000000000000000000000000000..15fc8d6d0d3d4ce4204cd5175ed7284287f9d3fe
--- /dev/null
+++ b/test/corruptM.test
@@ -0,0 +1,186 @@
+# 2019-08-12
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Check to ensure that the type, name, and tbl_name fields of the
+# sqlite_master table are validated and errors are reported if they
+# are inconsistent with the sql.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix corruptM
+
+# These tests deal with corrupt database files
+#
+database_may_be_corrupt
+
+proc open_db2_and_catchsql {sql} {
+  set rc [catch { sqlite3 db2 test.db } msg]
+  if {$rc} {
+    return [list $rc $msg]
+  }
+  set res [catchsql $sql db2]
+  db2 close
+  set res
+}
+
+db close
+forcedelete test.db
+sqlite3 db test.db
+do_execsql_test corruptM-100 {
+  CREATE TABLE t1(a,b,c);
+  INSERT INTO t1 VALUES(111,222,333);
+  CREATE INDEX i1 ON t1(b);
+  CREATE VIEW v2 AS SELECT 15,22;
+  CREATE TRIGGER r1 AFTER INSERT ON t1 BEGIN SELECT 5; END;
+  SELECT type, name, tbl_name, '|' FROM sqlite_master;
+} {table t1 t1 | index i1 t1 | view v2 v2 | trigger r1 t1 |}
+do_execsql_test corruptM-101 {
+  PRAGMA writable_schema=on;
+  UPDATE sqlite_master SET tbl_name=NULL WHERE name='t1';
+  SELECT type, name, tbl_name, '|' FROM sqlite_master;
+} {table t1 {} | index i1 t1 | view v2 v2 | trigger r1 t1 |}
+do_test corruptM-102 {
+  open_db2_and_catchsql {
+    PRAGMA quick_check;
+  }
+} {1 {malformed database schema (t1)}}
+
+do_execsql_test corruptM-110 {
+  UPDATE sqlite_master SET tbl_name='tx' WHERE name='t1';
+  SELECT type, name, tbl_name, '|' FROM sqlite_master;
+} {table t1 tx | index i1 t1 | view v2 v2 | trigger r1 t1 |}
+do_test corruptM-111 {
+  open_db2_and_catchsql {
+    PRAGMA quick_check;
+  }
+} {1 {malformed database schema (t1)}}
+do_execsql_test corruptM-112 {
+  UPDATE sqlite_master SET tbl_name='t1', type='tabl' WHERE name='t1';
+  SELECT type, name, tbl_name, '|' FROM sqlite_master;
+} {tabl t1 t1 | index i1 t1 | view v2 v2 | trigger r1 t1 |}
+do_test corruptM-113 {
+  open_db2_and_catchsql {
+    PRAGMA quick_check;
+  }
+} {1 {malformed database schema (t1)}}
+do_execsql_test corruptM-114 {
+  UPDATE sqlite_master SET tbl_name='t9',type='table',name='t9'WHERE name='t1';
+  SELECT type, name, tbl_name, '|' FROM sqlite_master;
+} {table t9 t9 | index i1 t1 | view v2 v2 | trigger r1 t1 |}
+do_test corruptM-114 {
+  open_db2_and_catchsql {
+    PRAGMA quick_check;
+  }
+} {1 {malformed database schema (t9)}}
+
+do_execsql_test corruptM-120 {
+  UPDATE sqlite_master SET name='t1',tbl_name='T1' WHERE name='t9';
+  SELECT type, name, tbl_name, '|' FROM sqlite_master;
+} {table t1 T1 | index i1 t1 | view v2 v2 | trigger r1 t1 |}
+do_test corruptM-121 {
+  open_db2_and_catchsql {
+    PRAGMA quick_check;
+    SELECT * FROM t1, v2;
+  } 
+} {0 {ok 111 222 333 15 22}}
+
+do_execsql_test corruptM-130 {
+  UPDATE sqlite_master SET type='view' WHERE name='t1';
+  SELECT type, name, tbl_name, '|' FROM sqlite_master;
+} {view t1 T1 | index i1 t1 | view v2 v2 | trigger r1 t1 |}
+do_test corruptM-131 {
+  open_db2_and_catchsql {
+    PRAGMA quick_check;
+    SELECT * FROM t1, v2;
+  }
+} {1 {malformed database schema (t1)}}
+
+do_execsql_test corruptM-140 {
+  UPDATE sqlite_master SET type='table', tbl_name='t1' WHERE name='t1';
+  UPDATE sqlite_master SET tbl_name='tx' WHERE name='i1';
+  SELECT type, name, tbl_name, '|' FROM sqlite_master;
+} {table t1 t1 | index i1 tx | view v2 v2 | trigger r1 t1 |}
+do_test corruptM-141 {
+  open_db2_and_catchsql {
+    PRAGMA quick_check;
+    SELECT * FROM t1, v2;
+  }
+} {1 {malformed database schema (i1)}}
+
+do_execsql_test corruptM-150 {
+  UPDATE sqlite_master SET type='table', tbl_name='t1' WHERE name='i1';
+  SELECT type, name, tbl_name, '|' FROM sqlite_master;
+} {table t1 t1 | table i1 t1 | view v2 v2 | trigger r1 t1 |}
+do_test corruptM-151 {
+  open_db2_and_catchsql {
+    PRAGMA quick_check;
+    SELECT * FROM t1, v2;
+  }
+} {1 {malformed database schema (i1)}}
+
+do_execsql_test corruptM-160 {
+  UPDATE sqlite_master SET type='view', tbl_name='t1' WHERE name='i1';
+  SELECT type, name, tbl_name, '|' FROM sqlite_master;
+} {table t1 t1 | view i1 t1 | view v2 v2 | trigger r1 t1 |}
+do_test corruptM-161 {
+  open_db2_and_catchsql {
+    PRAGMA quick_check;
+    SELECT * FROM t1, v2;
+  }
+} {1 {malformed database schema (i1)}}
+
+do_execsql_test corruptM-170 {
+  UPDATE sqlite_master SET type='index', tbl_name='t1' WHERE name='i1';
+  UPDATE sqlite_master SET type='table', tbl_name='v2' WHERE name='v2';
+  SELECT type, name, tbl_name, '|' FROM sqlite_master;
+} {table t1 t1 | index i1 t1 | table v2 v2 | trigger r1 t1 |}
+do_test corruptM-171 {
+  open_db2_and_catchsql {
+    PRAGMA quick_check;
+    SELECT * FROM t1, v2;
+  }
+} {1 {malformed database schema (v2)}}
+
+do_execsql_test corruptM-180 {
+  UPDATE sqlite_master SET type='view',name='v3',tbl_name='v3' WHERE name='v2';
+  SELECT type, name, tbl_name, '|' FROM sqlite_master;
+} {table t1 t1 | index i1 t1 | view v3 v3 | trigger r1 t1 |}
+do_test corruptM-181 {
+  open_db2_and_catchsql {
+    PRAGMA quick_check;
+    SELECT * FROM t1, v2;
+  }
+} {1 {malformed database schema (v3)}}
+
+do_execsql_test corruptM-190 {
+  UPDATE sqlite_master SET type='view',name='v2',tbl_name='v2' WHERE name='v3';
+  UPDATE sqlite_master SET type='view' WHERE name='r1';
+  SELECT type, name, tbl_name, '|' FROM sqlite_master;
+} {table t1 t1 | index i1 t1 | view v2 v2 | view r1 t1 |}
+do_test corruptM-191 {
+  open_db2_and_catchsql {
+    PRAGMA quick_check;
+    SELECT * FROM t1, v2;
+  }
+} {1 {malformed database schema (r1)}}
+do_execsql_test corruptM-192 {
+  UPDATE sqlite_master SET type='trigger',tbl_name='v2' WHERE name='r1';
+  SELECT type, name, tbl_name, '|' FROM sqlite_master;
+} {table t1 t1 | index i1 t1 | view v2 v2 | trigger r1 v2 |}
+do_test corruptM-193 {
+  open_db2_and_catchsql {
+    PRAGMA quick_check;
+    SELECT * FROM t1, v2;
+  }
+} {1 {malformed database schema (r1)}}
+
+finish_test
diff --git a/test/corruptN.test b/test/corruptN.test
new file mode 100644
index 0000000000000000000000000000000000000000..2297991aba06afc785ad700da5525fb41401be54
--- /dev/null
+++ b/test/corruptN.test
@@ -0,0 +1,297 @@
+# 2020-12-16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix corruptN
+
+# These tests deal with corrupt database files
+#
+database_may_be_corrupt
+
+reset_db
+do_test 1.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 4096 pagesize 512 filename sql024239.txt.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 02 00 01 01 00 40 20 20 00 00 00 0c 00 00 00 07   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 08 00 00 00 04   ................
+|     48: 00 00 00 00 89 00 00 04 00 10 00 01 0a 00 00 01   ................
+|     80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0c   ................
+|     96: 00 2e 2c 50 0d 00 00 00 06 01 06 00 01 da 01 b0   ..,P............
+|    112: 01 56 01 86 01 2a 01 06 00 00 00 00 00 00 00 00   .V...*..........
+|    256: 00 00 00 00 00 00 22 07 06 17 11 11 01 31 74 61   .............1ta
+|    272: 62 6c 65 74 34 74 34 07 43 52 45 41 54 45 20 54   blet4t4.CREATE T
+|    288: 41 42 4c 45 20 74 34 28 78 29 2a 06 06 17 13 11   ABLE t4(x)*.....
+|    304: 01 3f 69 6e 64 65 78 74 33 78 74 33 05 43 52 45   .?indext3xt3.CRE
+|    320: 41 54 45 20 49 4e 44 45 58 20 74 33 78 20 4f 4e   ATE INDEX t3x ON
+|    336: 20 74 33 28 78 29 2e 04 06 17 15 11 01 45 69 6e    t3(x).......Ein
+|    352: 64 65 78 74 32 63 64 74 32 05 43 52 45 41 54 45   dext2cdt2.CREATE
+|    368: 20 49 4e 44 45 58 20 74 32 63 64 20 4f 4e 20 74    INDEX t2cd ON t
+|    384: 32 28 63 2c 64 29 28 05 06 17 11 11 01 3d 74 61   2(c,d)(......=ta
+|    400: 62 6c 65 74 33 74 33 07 43 52 45 41 54 45 20 54   blet3t3.CREATE T
+|    416: 41 42 4c 45 20 74 33 28 63 2c 78 2c 65 2c 66 29   ABLE t3(c,x,e,f)
+|    432: 28 02 06 17 11 11 01 3d 74 61 62 6c 65 74 32 74   (......=tablet2t
+|    448: 32 03 43 52 45 41 54 45 20 54 41 42 4c 45 20 74   2.CREATE TABLE t
+|    464: 32 28 63 2c 64 2c 65 2c 66 29 24 01 06 17 11 11   2(c,d,e,f)$.....
+|    480: 01 35 74 61 62 6c 65 74 31 74 31 02 43 52 45 41   .5tablet1t1.CREA
+|    496: 54 45 20 54 41 42 4c 45 20 74 31 28 61 2c 62 29   TE TABLE t1(a,b)
+| page 2 offset 512
+|      0: 0d 00 00 00 04 01 41 00 01 fa 01 f3 01 de 01 cf   ......A.........
+|    160: 00 00 20 00 00 00 00 00 00 00 00 00 00 00 00 00   .. .............
+|    448: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0d   ................
+|    464: 04 03 17 17 73 65 76 65 6e 65 69 67 68 74 13 03   ....seveneight..
+|    480: 03 07 07 40 14 00 00 00 00 00 00 40 18 00 00 00   ...@.......@....
+|    496: 00 00 00 05 02 03 01 01 03 04 04 01 03 09 01 02   ................
+| page 3 offset 1024
+|      0: 0d 00 00 00 08 01 54 00 01 f7 01 ec 01 c5 01 aa   ......T.........
+|     16: 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|    112: 00 00 dd 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|    336: 00 00 00 00 19 08 05 17 17 17 17 65 69 67 68 74   ...........eight
+|    352: 65 69 67 68 74 73 65 76 65 6e 73 65 76 65 6e 25   eightsevenseven%
+|    368: 07 05 07 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|    432: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08   ................
+|    480: 00 00 0f 04 17 17 01 65 69 67 68 74 65 69 67 68   .......eighteigh
+|    496: 74 08 15 04 07 07 01 40 18 00 00 00 00 00 00 40   t......@.......@
+| page 4 offset 1536
+|      0: 18 00 00 00 00 00 00 07 07 04 01 01 01 04 04 06   ................
+|     16: 07 04 01 01 01 02 02 05 0f 04 17 17 01 73 6d 76   .............smv
+|     32: 65 6e 65 69 67 68 74 04 15 04 07 07 01 40 14 00   eneight......@..
+| page 5 offset 2048
+|      0: 0a 00 00 00 08 01 96 00 01 fa 01 c4 01 f2 01 bc   ................
+|     16: 01 dc 01 e1 01 96 01 cc 00 00 00 00 00 00 00 00   ................
+|    160: 00 00 00 00 00 00 32 00 00 00 00 00 00 00 00 00   ......2.........
+|    368: 00 00 00 08 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|    400: 00 00 00 00 00 00 0f 04 17 17 01 85 69 67 68 74   ............ight
+|    416: 65 69 67 68 74 08 15 04 07 07 01 40 18 00 00 00   eight......@....
+|    432: 00 00 00 40 18 00 00 00 00 00 00 07 07 04 01 01   ...@............
+|    448: 01 04 04 06 07 04 01 01 01 02 02 05 0f 04 17 17   ................
+|    464: 01 73 6d 76 65 6e 65 69 67 68 74 04 15 04 07 07   .smveneight.....
+|    480: 01 40 14 00 00 00 00 00 00 40 18 00 00 00 00 00   .@.......@......
+|    496: 00 03 07 04 01 01 01 03 04 02 05 04 03 01 09 02   ................
+| page 6 offset 2560
+|      0: 0a 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|     16: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 10 00   ................
+|    304: 00 00 00 26 00 00 00 00 00 00 00 00 00 00 00 00   ...&............
+| page 7 offset 3072
+|      0: 0d 00 00 00 08 01 c2 00 01 fb 01 f6 01 f1 01 ec   ................
+|     16: 01 e0 01 d4 01 cb 01 c2 00 00 00 00 00 00 00 00   ................
+|    128: 00 00 00 00 00 00 00 00 00 00 00 00 00 20 00 04   ............. ..
+|    384: 00 00 00 00 00 00 00 00 00 07 08 02 17 65 69 fc   .............ei.
+|    400: 68 74 07 07 02 17 65 69 67 68 74 0a fb fd f8 bf   ht....eight.....
+|    416: e7 ff ff ff 00 00 00 0a 05 02 07 40 18 00 00 00   ...........@....
+|    432: 00 00 00 03 04 02 01 04 03 03 02 01 04 03 02 01   ................
+|    448: ff ff ff ff ff ff 00 00 00 00 00 00 00 00 00 00   ................
+| end sql024239.txt.db
+}]} {}
+
+do_catchsql_test 1.1 {
+  VACUUM;
+} {1 {database disk image is malformed}}
+
+# 2021-04-05 dbsqlfuzz b92b72e4de80b5140c30ab71372ca719b8feb618
+do_test 2.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 16384 pagesize 4096 filename c-b92b.txt.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 04   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 03 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 0f f8 00 04 0f 12 00 0f 91 0f d3   ................
+|    112: 0f 67 0f 12 00 00 00 00 00 00 00 00 00 00 00 00   .g..............
+|   3856: 00 00 53 04 07 1b 13 11 08 81 0d 74 72 69 67 67   ..S........trigg
+|   3872: 65 72 74 72 30 74 31 43 52 45 41 54 45 20 54 52   ertr0t1CREATE TR
+|   3888: 49 47 47 45 52 20 74 72 30 20 44 45 4c 45 54 45   IGGER tr0 DELETE
+|   3904: 20 4f 4e 20 74 31 20 42 45 47 49 4e 0a 20 20 55    ON t1 BEGIN.  U
+|   3920: 50 44 41 54 45 20 74 31 20 53 45 54 20 62 20 3d   PDATE t1 SET b =
+|   3936: 20 61 3b 0a 45 4e 44 28 03 06 17 11 11 01 3d 69    a;.END(......=i
+|   3952: 6e 64 65 78 69 30 74 31 04 43 52 45 41 54 45 20   ndexi0t1.CREATE 
+|   3968: 49 4e 44 45 58 20 69 30 20 4f 4e 20 74 31 28 62   INDEX i0 ON t1(b
+|   3984: 29 40 01 06 17 11 11 01 6d 74 61 62 6c 65 74 31   )@......mtablet1
+|   4000: 74 31 02 43 52 45 41 54 45 20 54 41 42 4c 45 20   t1.CREATE TABLE 
+|   4016: 74 31 28 61 20 55 4e 49 51 55 45 20 4f 4e 20 43   t1(a UNIQUE ON C
+|   4032: 4f 4e 46 4c 49 43 54 20 52 45 50 4c 41 43 45 2c   ONFLICT REPLACE,
+|   4048: 20 62 29 23 02 06 17 37 11 01 00 69 6e 64 65 78    b)#...7...index
+|   4064: 73 71 6c 69 74 65 5f 61 75 74 6f 69 6e 64 65 78   sqlite_autoindex
+|   4080: 5f 74 31 5f 31 74 31 03 00 00 00 08 00 00 00 00   _t1_1t1.........
+| page 2 offset 4096
+|      0: 0d 00 00 00 02 0f 00 00 00 00 00 00 00 00 00 00   ................
+|   4080: 00 00 05 02 03 01 01 09 0d 05 01 03 01 01 04 0c   ................
+| page 3 offset 8192
+|      0: 0a 00 00 00 02 0f f5 00 0f fb 0f f5 00 00 00 00   ................
+|   4080: 00 00 00 00 00 05 03 01 01 09 02 04 03 01 09 04   ................
+| page 4 offset 12288
+|      0: 0a 00 00 00 02 0f f5 00 0f fb 0f f5 00 00 00 00   ................
+|   4080: 00 00 00 00 00 05 03 01 01 0d 02 04 03 00 00 00   ................
+| end c-b92b.txt.db
+}]} {}
+
+
+reset_db
+if {![info exists ::G(perm:presql)]} {
+  do_execsql_test 3.0 {
+    CREATE TABLE t1(x INTEGER PRIMARY KEY AUTOINCREMENT, y);
+    PRAGMA writable_schema = 1;
+    UPDATE sqlite_schema 
+      SET sql = 'CREATE TABLE sqlite_sequence(name-seq)' 
+      WHERE name = 'sqlite_sequence';
+  }
+  db close
+  sqlite3 db test.db
+  do_catchsql_test 3.1 {
+    PRAGMA writable_schema = 1;
+    INSERT INTO t1(y) VALUES('abc');
+  } {1 {database disk image is malformed}}
+  reset_db
+
+  do_execsql_test 4.1 {
+    CREATE TABLE x1(a INTEGER PRIMARY KEY, b UNIQUE, c UNIQUE);
+    INSERT INTO x1 VALUES(1, 1, 2);
+    INSERT INTO x1 VALUES(2, 2, 3);
+    INSERT INTO x1 VALUES(3, 3, 4);
+    INSERT INTO x1 VALUES(4, 5, 6);
+    PRAGMA writable_schema = 1;
+
+    UPDATE sqlite_schema SET rootpage = (
+      SELECT rootpage FROM sqlite_schema WHERE name = 'sqlite_autoindex_x1_2'
+    ) WHERE name = 'sqlite_autoindex_x1_1';
+  }
+
+  db close
+  sqlite3 db test.db
+  breakpoint
+  do_catchsql_test 4.2 {
+    PRAGMA writable_schema = 1;
+    REPLACE INTO x1 VALUES(5, 2, 3);
+  } {0 {}}
+
+}
+
+#-------------------------------------------------------------------------
+
+reset_db
+
+ifcapable json1&&vtab {
+  db func strreplace strreplace
+  proc strreplace {orig a b} {
+    string map [list $a $b] $orig
+  }
+
+  do_execsql_test 5.0 {
+    CREATE TABLE t1(a, b);
+    CREATE INDEX t1a ON t1(a);
+    CREATE INDEX t1b ON t1(b);
+
+    PRAGMA writable_schema = 1;
+    UPDATE sqlite_schema 
+      SET sql = strreplace(sql, 't1', 'json_each') 
+      WHERE type='index';
+  }
+
+  # Do not run this tests if there is any presql (SQL run from within
+  # the [sqlite3] command) configured. In this case the schema is parsed
+  # before the "PRAGMA writable_schema" command is executed and the 
+  # script throws and exception.
+  if {[info exists ::G(perm:presql)]==0 || $::G(perm:presql)==""} {
+    db close
+    sqlite3 db test.db
+
+    do_execsql_test 5.1 {
+      PRAGMA writable_schema = 1;
+      SELECT * FROM t1
+    }
+  }
+}; # ifcapable json1&&vtab
+
+#-------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 6.0 {
+  PRAGMA auto_vacuum = 0;
+  PRAGMA page_size=1024;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+  INSERT INTO t1(b) VALUES(zeroblob(300)),(zeroblob(300)),(zeroblob(300)),(zeroblob(300));
+  CREATE TABLE t2(a);
+  CREATE TRIGGER t1tr BEFORE UPDATE ON t1 BEGIN DELETE FROM t2; END;
+  PRAGMA writable_schema=ON;
+  UPDATE sqlite_schema SET rootpage=3 WHERE rowid=2;
+  PRAGMA writable_schema=RESET;
+  INSERT INTO t2 VALUES('active'),('boomer'),('atom'),('atomic'),
+         ('alpha channel backup abandon test aback boomer atom alpha active');
+}
+do_catchsql_test 6.1 {
+  UPDATE t1 SET b=zeroblob(299);
+} {1 {database disk image is malformed}}
+
+reset_db
+do_execsql_test 6.2 {
+  -- Make "t1" a large table. Large enough that the children of the root
+  -- node are interior nodes.
+  PRAGMA page_size = 1024;
+  PRAGMA auto_vacuum = 0;
+  CREATE TABLE t1(x);
+  WITH s(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<500
+  )
+  INSERT INTO t1 SELECT zeroblob(300) FROM s;
+  
+  CREATE TABLE t2(y);
+  CREATE TRIGGER tr BEFORE UPDATE ON t1 BEGIN
+    DELETE FROM t2;
+  END;
+  
+  -- Set the root of table t2 to 137 - the leftmost child of the root of t1.
+  PRAGMA writable_schema = ON;
+  UPDATE sqlite_schema SET rootpage = 137 WHERE name='t2';
+  PRAGMA writable_schema = RESET;
+}
+  
+do_catchsql_test 6.3 {
+  -- Run an UPDATE on t1 that will hit a child of page 136. Have the trigger
+  -- clear page 136 and its children. Assert fails.
+  UPDATE t1 SET x='hello world' WHERE rowid=1;
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 7.0 {
+  BEGIN;
+  CREATE TABLE p1(x PRIMARY KEY);
+  CREATE TABLE c1(y);
+
+  PRAGMA schema_version = 0;
+  PRAGMA writable_schema = RESET;
+
+  INSERT INTO c1 VALUES(1000);
+  ROLLBACK;
+}
+
+do_execsql_test 7.1 {
+  PRAGMA table_info = p1;
+} {0 x {} 0 {} 1}
+
+do_catchsql_test 7.2 {
+  SELECT * FROM p1;
+} {1 {database disk image is malformed}}
+
+do_catchsql_test 7.3 {
+  PRAGMA integrity_check
+} {1 {database disk image is malformed}}
+
+
+finish_test
diff --git a/test/cost.test b/test/cost.test
new file mode 100644
index 0000000000000000000000000000000000000000..6106caba8ca934b63744864faea42c4045de972b
--- /dev/null
+++ b/test/cost.test
@@ -0,0 +1,289 @@
+# 2014-04-26
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix cost
+
+
+do_execsql_test 1.1 {
+  CREATE TABLE t3(id INTEGER PRIMARY KEY, b NOT NULL);
+  CREATE TABLE t4(c, d, e);
+  CREATE UNIQUE INDEX i3 ON t3(b);
+  CREATE UNIQUE INDEX i4 ON t4(c, d);
+}
+do_eqp_test 1.2 {
+  SELECT e FROM t3, t4 WHERE b=c ORDER BY b, d;
+} {
+  QUERY PLAN
+  |--SCAN t3 USING COVERING INDEX i3
+  `--SEARCH t4 USING INDEX i4 (c=?)
+}
+
+
+do_execsql_test 2.1 {
+  CREATE TABLE t1(a, b);
+  CREATE INDEX i1 ON t1(a);
+}
+
+# It is better to use an index for ORDER BY than sort externally, even 
+# if the index is a non-covering index.
+do_eqp_test 2.2 {
+  SELECT * FROM t1 ORDER BY a;
+} {SCAN t1 USING INDEX i1}
+
+do_execsql_test 3.1 {
+  CREATE TABLE t5(a INTEGER PRIMARY KEY,b,c,d,e,f,g);
+  CREATE INDEX t5b ON t5(b);
+  CREATE INDEX t5c ON t5(c);
+  CREATE INDEX t5d ON t5(d);
+  CREATE INDEX t5e ON t5(e);
+  CREATE INDEX t5f ON t5(f);
+  CREATE INDEX t5g ON t5(g);
+}
+
+do_eqp_test 3.2 {
+  SELECT a FROM t5 
+  WHERE b IS NULL OR c IS NULL OR d IS NULL 
+  ORDER BY a;
+} {
+  QUERY PLAN
+  |--MULTI-INDEX OR
+  |  |--INDEX 1
+  |  |  `--SEARCH t5 USING INDEX t5b (b=?)
+  |  |--INDEX 2
+  |  |  `--SEARCH t5 USING INDEX t5c (c=?)
+  |  `--INDEX 3
+  |     `--SEARCH t5 USING INDEX t5d (d=?)
+  `--USE TEMP B-TREE FOR ORDER BY
+}
+
+#-------------------------------------------------------------------------
+# If there is no likelihood() or stat3 data, SQLite assumes that a closed
+# range scan (e.g. one constrained by "col BETWEEN ? AND ?" constraint)
+# visits 1/64 of the rows in a table.
+#
+# Note: 1/63 =~ 0.016
+# Note: 1/65 =~ 0.015
+#
+reset_db
+do_execsql_test 4.1 {
+  CREATE TABLE t1(a, b);
+  CREATE INDEX i1 ON t1(a);
+  CREATE INDEX i2 ON t1(b);
+}
+do_eqp_test 4.2 {
+  SELECT * FROM t1 WHERE likelihood(a=?, 0.014) AND b BETWEEN ? AND ?;
+} {SEARCH t1 USING INDEX i1 (a=?)}
+
+do_eqp_test 4.3 {
+  SELECT * FROM t1 WHERE likelihood(a=?, 0.016) AND b BETWEEN ? AND ?;
+} {SEARCH t1 USING INDEX i2 (b>? AND b<?)}
+
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 5.1 {
+  CREATE TABLE t2(x, y);
+  CREATE INDEX t2i1 ON t2(x);
+}
+
+do_eqp_test 5.2 {
+  SELECT * FROM t2 ORDER BY x, y;
+} {
+  QUERY PLAN
+  |--SCAN t2 USING INDEX t2i1
+  `--USE TEMP B-TREE FOR LAST TERM OF ORDER BY
+}
+
+do_eqp_test 5.3 {
+  SELECT * FROM t2 WHERE x BETWEEN ? AND ? ORDER BY rowid;
+} {
+  QUERY PLAN
+  |--SEARCH t2 USING INDEX t2i1 (x>? AND x<?)
+  `--USE TEMP B-TREE FOR ORDER BY
+}
+
+# where7.test, where8.test:
+#
+do_execsql_test 6.1 {
+  CREATE TABLE t3(a INTEGER PRIMARY KEY, b, c);
+  CREATE INDEX t3i1 ON t3(b);
+  CREATE INDEX t3i2 ON t3(c);
+}
+
+do_eqp_test 6.2 {
+  SELECT a FROM t3 WHERE (b BETWEEN 2 AND 4) OR c=100 ORDER BY a
+} {
+  QUERY PLAN
+  |--MULTI-INDEX OR
+  |  |--INDEX 1
+  |  |  `--SEARCH t3 USING INDEX t3i1 (b>? AND b<?)
+  |  `--INDEX 2
+  |     `--SEARCH t3 USING INDEX t3i2 (c=?)
+  `--USE TEMP B-TREE FOR ORDER BY
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 7.1 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY,b,c,d,e,f,g);
+  CREATE INDEX t1b ON t1(b);
+  CREATE INDEX t1c ON t1(c);
+  CREATE INDEX t1d ON t1(d);
+  CREATE INDEX t1e ON t1(e);
+  CREATE INDEX t1f ON t1(f);
+  CREATE INDEX t1g ON t1(g);
+}
+
+do_eqp_test 7.2 {
+  SELECT a FROM t1
+     WHERE (b>=950 AND b<=1010) OR (b IS NULL AND c NOT NULL)
+  ORDER BY a
+} {
+  QUERY PLAN
+  |--MULTI-INDEX OR
+  |  |--INDEX 1
+  |  |  `--SEARCH t1 USING INDEX t1b (b>? AND b<?)
+  |  `--INDEX 2
+  |     `--SEARCH t1 USING INDEX t1b (b=?)
+  `--USE TEMP B-TREE FOR ORDER BY
+}
+
+do_eqp_test 7.3 {
+  SELECT rowid FROM t1
+  WHERE (+b IS NULL AND c NOT NULL AND d NOT NULL)
+        OR (b NOT NULL AND c IS NULL AND d NOT NULL)
+        OR (b NOT NULL AND c NOT NULL AND d IS NULL)
+} {SCAN t1}
+
+do_eqp_test 7.4 {
+  SELECT rowid FROM t1 WHERE (+b IS NULL AND c NOT NULL) OR c IS NULL
+} {SCAN t1}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 8.1 {
+  CREATE TABLE composer(
+    cid INTEGER PRIMARY KEY,
+    cname TEXT
+  );
+  CREATE TABLE album(
+    aid INTEGER PRIMARY KEY,
+    aname TEXT
+  );
+  CREATE TABLE track(
+    tid INTEGER PRIMARY KEY,
+    cid INTEGER REFERENCES composer,
+    aid INTEGER REFERENCES album,
+    title TEXT
+  );
+  CREATE INDEX track_i1 ON track(cid);
+  CREATE INDEX track_i2 ON track(aid);
+}
+
+do_eqp_test 8.2 {
+  SELECT DISTINCT aname
+    FROM album, composer, track
+   WHERE cname LIKE '%bach%'
+     AND unlikely(composer.cid=track.cid)
+     AND unlikely(album.aid=track.aid);
+} {
+  QUERY PLAN
+  |--SCAN track
+  |--SEARCH album USING INTEGER PRIMARY KEY (rowid=?)
+  |--SEARCH composer USING INTEGER PRIMARY KEY (rowid=?)
+  `--USE TEMP B-TREE FOR DISTINCT
+}
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test 9.1 {
+  CREATE TABLE t1(
+    a,b,c,d,e, f,g,h,i,j,
+    k,l,m,n,o, p,q,r,s,t
+  );
+  CREATE INDEX i1 ON t1(k,l,m,n,o,p,q,r,s,t);
+}
+do_test 9.2 {
+  for {set i 0} {$i < 100} {incr i} {
+    execsql { INSERT INTO t1 DEFAULT VALUES }
+  }
+  execsql {
+    ANALYZE;
+    CREATE INDEX i2 ON t1(a,b,c,d,e,f,g,h,i,j);
+  }
+} {}
+
+set L [list a=? b=? c=? d=? e=? f=? g=? h=? i=? j=?]
+foreach {tn nTerm nRow} {
+  1   1 10
+  2   2 10
+  3   3  8
+  4   4  7
+  5   5  7
+  6   6  5
+  7   7  5
+  8   8  5
+  9   9  5
+  10 10  5
+} {
+  set w [join [lrange $L 0 [expr $nTerm-1]] " AND "]
+  set p1 [expr ($nRow-1) / 100.0]
+  set p2 [expr ($nRow+1) / 100.0]
+
+  set sql1 "SELECT * FROM t1 WHERE likelihood(k=?, $p1) AND $w"
+  set sql2 "SELECT * FROM t1 WHERE likelihood(k=?, $p2) AND $w"
+
+  do_eqp_test 9.3.$tn.1 $sql1 {/INDEX i1/}
+  do_eqp_test 9.3.$tn.2 $sql2 {/INDEX i2/}
+}
+
+
+#-------------------------------------------------------------------------
+#
+
+ifcapable stat4 {
+  do_execsql_test 10.1 {
+    CREATE TABLE t6(a, b, c);
+    CREATE INDEX t6i1 ON t6(a, b);
+    CREATE INDEX t6i2 ON t6(c);
+  }
+  
+  do_test 10.2 {
+    for {set i 0} {$i < 16} {incr i} {
+      execsql { INSERT INTO t6 VALUES($i%4, 'xyz', $i%8) }
+    }
+    execsql ANALYZE
+  } {}
+
+  do_eqp_test 10.3 {
+    SELECT rowid FROM t6 WHERE a=0 AND c=0
+  } {SEARCH t6 USING INDEX t6i2 (c=?)}
+
+  do_eqp_test 10.4 {
+    SELECT rowid FROM t6 WHERE a=0 AND b='xyz' AND c=0
+  } {SEARCH t6 USING INDEX t6i2 (c=?)}
+
+  do_eqp_test 10.5 {
+    SELECT rowid FROM t6 WHERE likelihood(a=0, 0.1) AND c=0
+  } {SEARCH t6 USING INDEX t6i1 (a=?)}
+
+  do_eqp_test 10.6 {
+    SELECT rowid FROM t6 WHERE likelihood(a=0, 0.1) AND b='xyz' AND c=0
+  } {SEARCH t6 USING INDEX t6i1 (a=? AND b=?)}
+}
+
+finish_test
diff --git a/test/count.test b/test/count.test
new file mode 100644
index 0000000000000000000000000000000000000000..6f02074cdcc03ea6089ece1e1ad78b35b3aaed22
--- /dev/null
+++ b/test/count.test
@@ -0,0 +1,251 @@
+# 2009-02-24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing "SELECT count(*)" statements.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Test plan:
+#
+#  count-0.*: Make sure count(*) works on an empty database.  (Ticket #3774)
+#
+#  count-1.*: Test that the OP_Count instruction appears to work on both
+#             tables and indexes. Test both when they contain 0 entries,
+#             when all entries are on the root page, and when the b-tree
+#             forms a structure 2 and 3 levels deep.
+#
+#
+
+do_test count-0.1 {
+  db eval {
+     SELECT count(*) FROM sqlite_master;
+  }
+} {0}
+
+set iTest 0
+foreach zIndex [list {
+  /* no-op */
+} {
+  CREATE INDEX i1 ON t1(a);
+}] { 
+  incr iTest
+  do_test count-1.$iTest.1 {
+    execsql {
+      DROP TABLE IF EXISTS t1;
+      CREATE TABLE t1(a, b);
+    }
+    execsql $zIndex
+    execsql { SELECT count(*) FROM t1 }
+  } {0}
+  
+  do_test count-1.$iTest.2 {
+    execsql {
+      INSERT INTO t1 VALUES(1, 2);
+      INSERT INTO t1 VALUES(3, 4);
+      SELECT count(*) FROM t1;
+    }
+  } {2}
+
+  do_test count-1.$iTest.3 {
+    execsql {
+      INSERT INTO t1 SELECT * FROM t1;          --   4
+      INSERT INTO t1 SELECT * FROM t1;          --   8
+      INSERT INTO t1 SELECT * FROM t1;          --  16
+      INSERT INTO t1 SELECT * FROM t1;          --  32
+      INSERT INTO t1 SELECT * FROM t1;          --  64
+      INSERT INTO t1 SELECT * FROM t1;          -- 128
+      INSERT INTO t1 SELECT * FROM t1;          -- 256
+      SELECT count(*) FROM t1;
+    }
+  } {256}
+  
+  do_test count-1.$iTest.4 {
+    execsql {
+      INSERT INTO t1 SELECT * FROM t1;          --  512
+      INSERT INTO t1 SELECT * FROM t1;          -- 1024
+      INSERT INTO t1 SELECT * FROM t1;          -- 2048
+      INSERT INTO t1 SELECT * FROM t1;          -- 4096
+      SELECT count(*) FROM t1;
+    }
+  } {4096}
+  
+  do_test count-1.$iTest.5 {
+    execsql {
+      BEGIN;
+      INSERT INTO t1 SELECT * FROM t1;          --  8192
+      INSERT INTO t1 SELECT * FROM t1;          -- 16384
+      INSERT INTO t1 SELECT * FROM t1;          -- 32768
+      INSERT INTO t1 SELECT * FROM t1;          -- 65536
+      COMMIT;
+      SELECT count(*) FROM t1;
+    }
+  } {65536}
+}
+
+proc uses_op_count {sql} {
+  if {[lsearch [execsql "EXPLAIN $sql"] Count]>=0} {
+    return 1;
+  }
+  return 0
+}
+
+do_test count-2.1 {
+  execsql {
+    CREATE TABLE t2(a, b);
+  }
+  uses_op_count {SELECT count(*) FROM t2}
+} {1}
+do_test count-2.2 {
+  catchsql {SELECT count(DISTINCT *) FROM t2}
+} {1 {near "*": syntax error}}
+do_test count-2.3 {
+  uses_op_count {SELECT count(DISTINCT a) FROM t2}
+} {0}
+do_test count-2.4 {
+  uses_op_count {SELECT count(a) FROM t2}
+} {0}
+do_test count-2.5 {
+  uses_op_count {SELECT count() FROM t2}
+} {1}
+do_test count-2.6 {
+  catchsql {SELECT count(DISTINCT) FROM t2}
+} {1 {DISTINCT aggregates must have exactly one argument}}
+do_test count-2.7 {
+  uses_op_count {SELECT count(*)+1 FROM t2}
+} {0}
+do_test count-2.8 {
+  uses_op_count {SELECT count(*) FROM t2 WHERE a IS NOT NULL}
+} {0}
+do_execsql_test count-2.9a {
+  SELECT count(*) FROM t2 HAVING count(*)>1;
+} {}
+do_execsql_test count-2.9b {
+  SELECT count(*) FROM t2 HAVING count(*)<10;
+} {0}
+do_test count-2.10 {
+  uses_op_count {SELECT count(*) FROM (SELECT 1)}
+} {0}
+do_test count-2.11 {
+  execsql { CREATE VIEW v1 AS SELECT 1 AS a }
+  uses_op_count {SELECT count(*) FROM v1}
+} {0}
+do_test count-2.12 {
+  uses_op_count {SELECT count(*), max(a) FROM t2}
+} {0}
+do_test count-2.13 {
+  uses_op_count {SELECT count(*) FROM t1, t2}
+} {0}
+
+ifcapable vtab {
+  register_echo_module [sqlite3_connection_pointer db]
+  do_test count-2.14 {
+    execsql { CREATE VIRTUAL TABLE techo USING echo(t1); }
+    uses_op_count {SELECT count(*) FROM techo}
+  } {0}
+}
+
+do_test count-3.1 {
+  execsql {
+    CREATE TABLE t3(a, b);
+    SELECT a FROM (SELECT count(*) AS a FROM t3) WHERE a==0;
+  }
+} {0}
+do_test count-3.2 {
+  execsql {
+    SELECT a FROM (SELECT count(*) AS a FROM t3) WHERE a==1;
+  }
+} {}
+
+do_test count-4.1 {
+  execsql {
+    CREATE TABLE t4(a, b);
+    INSERT INTO t4 VALUES('a', 'b');
+    CREATE INDEX t4i1 ON t4(b, a);
+    SELECT count(*) FROM t4;
+  }
+} {1}
+do_test count-4.2 {
+  execsql {
+    CREATE INDEX t4i2 ON t4(b);
+    SELECT count(*) FROM t4;
+  }
+} {1}
+do_test count-4.3 {
+  execsql {
+    DROP INDEX t4i1;
+    CREATE INDEX t4i1 ON t4(b, a);
+    SELECT count(*) FROM t4;
+  }
+} {1}
+
+do_execsql_test count-5.1 {
+  CREATE TABLE t5(a TEXT PRIMARY KEY, b VARCHAR(50)) WITHOUT ROWID;
+  INSERT INTO t5 VALUES('bison','jazz');
+  SELECT count(*) FROM t5;
+} {1}
+
+do_catchsql_test count-6.1 {
+  CREATE TABLE t6(x);
+  SELECT count(DISTINCT) FROM t6 GROUP BY x;
+} {1 {DISTINCT aggregates must have exactly one argument}}
+
+# 2020-05-08.
+# The count() optimization should honor the NOT INDEXED clause
+#
+reset_db
+do_execsql_test count-7.1 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b INT, c VARCHAR(1000));
+  CREATE INDEX t1b ON t1(b);
+  INSERT INTO t1(a,b,c) values(1,2,'count.test cases for NOT INDEXED');
+  ANALYZE;
+  UPDATE sqlite_stat1 SET stat='1000000 10' WHERE idx='t1b';
+  ANALYZE sqlite_master;
+}
+do_eqp_test count-7.2 {
+  SELECT count(1) FROM t1;
+} {
+  QUERY PLAN
+  `--SCAN t1 USING COVERING INDEX t1b
+}
+do_eqp_test count-7.3 {
+  SELECT count(1) FROM t1 NOT INDEXED
+} {
+  QUERY PLAN
+  `--SCAN t1
+}
+do_eqp_test count-7.3 {
+  SELECT count(*) FROM t1;
+} {
+  QUERY PLAN
+  `--SCAN t1 USING COVERING INDEX t1b
+}
+do_eqp_test count-7.4 {
+  SELECT count(*) FROM t1 NOT INDEXED
+} {
+  QUERY PLAN
+  `--SCAN t1
+}
+
+do_execsql_test count-8.0 {
+  CREATE TABLE t7(a INT,b TEXT,c BLOB,d REAL);
+  CREATE TABLE t8(a INT,b TEXT,c BLOB,d REAL);
+  CREATE INDEX t8a ON t8(a);
+}
+do_catchsql_test count-8.1 {
+  SELECT * FROM t8 WHERE (a, b) IN (
+      SELECT count(t8.b), count(*) FROM t7 AS ra0 ORDER BY count(*)
+  ) AND t8.b=0; 
+} {1 {misuse of aggregate: count()}}
+
+
+finish_test
diff --git a/test/countofview.test b/test/countofview.test
new file mode 100644
index 0000000000000000000000000000000000000000..cea6fa4274035a7270eb93700f8c4bbec7ae1a86
--- /dev/null
+++ b/test/countofview.test
@@ -0,0 +1,107 @@
+# 2018-08-04
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+set testprefix countofview
+
+do_execsql_test 1.0 {
+  CREATE TABLE t2(c);
+  CREATE TABLE t3(f);
+
+  INSERT INTO t2 VALUES(1), (2);
+  INSERT INTO t3 VALUES(3);
+}
+
+do_execsql_test 1.1 {
+  select c from t2 union all select f from t3 limit 1 offset 1
+} {2}
+
+do_execsql_test 1.2 {
+  select count(*) from (
+    select c from t2 union all select f from t3 limit 1 offset 1
+  )
+} {1}
+
+do_execsql_test 1.3 {
+  select count(*) from (
+    select c from t2 union all select f from t3
+  )
+} {3}
+
+# 2019-05-15
+do_execsql_test 2.0 {
+  CREATE TABLE t1(x);
+  INSERT INTO t1 VALUES(1),(99),('abc');
+  CREATE VIEW v1(x,y) AS SELECT x,1 FROM t1 UNION ALL SELECT x,2 FROM t1;
+  SELECT count(*) FROM v1 WHERE x<>1;
+} {4}
+do_execsql_test 2.1 {
+  SELECT count(*) FROM v1 GROUP BY y;
+} {3 3}
+
+# 2023-03-01 dbsqlfuzz ef8623915d843b150c159166ee4548c78cc6895a
+# count-of-view should not apply to CTEs.
+#
+ifcapable progress {
+  proc progress_stop args {return 1}
+  db progress 1000 progress_stop
+  do_catchsql_test 3.1 {
+    WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c)
+    SELECT count(*) FROM c;
+  } {1 interrupted}
+}
+
+# 2023-03-07 dbsqlfuzz 23d782160b71c3f8f535ccb2da313dfc8eb8c631
+#
+do_execsql_test 4.1 {
+  DROP TABLE t1;
+  DROP TABLE t2;
+  DROP TABLE t3;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b TEXT);
+  INSERT INTO t1 VALUES(4,'four');
+  CREATE TABLE t2(c INTEGER PRIMARY KEY, d TEXT);
+  CREATE VIEW t3 AS SELECT a, b FROM t1 UNION ALL SELECT c, d FROM t2;
+  SELECT count(*) FROM t3 ORDER BY sum(a);
+} 1
+
+# 2023-03-31 dbsqlfuzz 6a107e3055bd22afab31cfddabc2d9d54fcbaf69
+# Having clauses should disqualify count-of-view
+#
+reset_db
+do_execsql_test 5.1 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b TEXT);
+  INSERT INTO t1 VALUES(1,'one'),(4,'four');
+  CREATE TABLE t2(c INTEGER PRIMARY KEY, d TEXT);
+  INSERT INTO t2 VALUES(2,'two'),(5,'five');
+  CREATE VIEW t3 AS SELECT a, b FROM t1 UNION ALL SELECT c, d FROM t2;
+  SELECT count(*) FROM t3 HAVING count(*)>0;
+} 4
+do_execsql_test 5.2 {
+  SELECT count(*) FROM t3 HAVING count(*)>5;
+} {}
+do_execsql_test 5.3 {
+  SELECT count(*) FROM t3 HAVING max(b)>'mmm';
+} 4
+do_execsql_test 5.4 {
+  SELECT count(*) FROM t3 HAVING min(b)>'mmm';
+} {}
+do_execsql_test 5.5 {
+  SELECT count(*) FROM (
+     SELECT a, max(b) FROM t1 HAVING a<100 UNION ALL SELECT c, d FROM t2
+  )
+} 3
+
+
+finish_test
diff --git a/test/coveridxscan.test b/test/coveridxscan.test
new file mode 100644
index 0000000000000000000000000000000000000000..c87227cabc0de9ca171e3c5172bd771c12133166
--- /dev/null
+++ b/test/coveridxscan.test
@@ -0,0 +1,119 @@
+# 2012 September 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests for the optimization which attempts to use a covering index
+# for a full-table scan (under the theory that the index will be smaller
+# and require less I/O and hence will run faster.)
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+set testprefix coveridxscan
+
+do_test 1.1 {
+  db eval {
+    CREATE TABLE t1(a,b,c);
+    INSERT INTO t1 VALUES(5,4,3), (4,8,2), (3,2,1);
+    CREATE INDEX t1ab ON t1(a,b);
+    CREATE INDEX t1b ON t1(b);
+    SELECT a FROM t1;
+  }
+  # covering index used for the scan, hence values are increasing
+} {3 4 5}
+
+do_test 1.2 {
+  db eval {
+    SELECT a, c FROM t1;
+  }
+  # There is no covering index, hence the values are in rowid order
+} {5 3 4 2 3 1}
+
+do_test 1.3 {
+  db eval {
+    SELECT b FROM t1;
+  }
+  # Choice of two indices: use the one with fewest columns
+} {2 4 8}
+
+do_test 2.1 {
+  optimization_control db cover-idx-scan 0
+  db eval {SELECT a FROM t1}
+  # With the optimization turned off, output in rowid order
+} {5 4 3}
+do_test 2.2 {
+  db eval {SELECT a, c FROM t1}
+} {5 3 4 2 3 1}
+do_test 2.3 {
+  db eval {SELECT b FROM t1}
+} {4 8 2}
+
+db close
+sqlite3_shutdown
+sqlite3_config_cis 0
+sqlite3 db test.db
+
+do_test 3.1 {
+  db eval {SELECT a FROM t1}
+  # With the optimization configured off, output in rowid order
+} {5 4 3}
+do_test 3.2 {
+  db eval {SELECT a, c FROM t1}
+} {5 3 4 2 3 1}
+do_test 3.3 {
+  db eval {SELECT b FROM t1}
+} {4 8 2}
+
+db close
+sqlite3_shutdown
+sqlite3_config_cis 1
+sqlite3 db test.db
+
+# The CIS optimization is enabled again.  Covering indices are once again
+# used for all table scans.
+do_test 4.1 {
+  db eval {SELECT a FROM t1}
+} {3 4 5}
+do_test 4.2 {
+  db eval {SELECT a, c FROM t1}
+} {5 3 4 2 3 1}
+do_test 4.3 {
+  db eval {SELECT b FROM t1}
+} {2 4 8}
+
+#-------------------------------------------------------------------------
+# Test that indexes with large numbers of columns can be correctly 
+# identified as covering indexes.
+reset_db
+set L [list]
+for {set i 1} {$i<120} {incr i} {
+  lappend L "c$i"
+}
+set cols [join $L ,]
+
+do_execsql_test 5.1.0 "
+  CREATE TABLE t1(a, b, c, $cols, PRIMARY KEY(a, b, c)) WITHOUT ROWID;
+  CREATE INDEX i1 ON t1($cols);
+
+  CREATE TABLE t2(i INTEGER PRIMARY KEY, $cols);
+  CREATE INDEX i2 ON t2($cols);
+"
+
+do_eqp_test 5.1.1 {
+  SELECT * FROM t1 ORDER BY c1, c2;
+} {SCAN t1 USING COVERING INDEX i1}
+
+do_eqp_test 5.1.2 {
+  SELECT * FROM t2 ORDER BY c1, c2;
+} {SCAN t2 USING COVERING INDEX i2}
+
+
+finish_test
diff --git a/test/crash.test b/test/crash.test
new file mode 100644
index 0000000000000000000000000000000000000000..f63163659915ebdead9a5ad7fb6b28d3a5f58b04
--- /dev/null
+++ b/test/crash.test
@@ -0,0 +1,411 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# The focus of this file is testing the ability of the database to
+# uses its rollback journal to recover intact (no database corruption)
+# from a power failure during the middle of a COMMIT.  The OS interface
+# modules are overloaded using the modified I/O routines found in test6.c.  
+# These routines allow us to simulate the kind of file damage that 
+# occurs after a power failure.
+#
+# $Id: crash.test,v 1.27 2008/01/08 15:18:52 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !crashtest {
+  finish_test
+  return
+}
+
+set repeats 100
+#set repeats 10
+
+# The following procedure computes a "signature" for table "abc".  If
+# abc changes in any way, the signature should change.  
+proc signature {} {
+  return [db eval {SELECT count(*), md5sum(a), md5sum(b), md5sum(c) FROM abc}]
+}
+proc signature2 {} {
+  return [db eval {SELECT count(*), md5sum(a), md5sum(b), md5sum(c) FROM abc2}]
+}
+
+#--------------------------------------------------------------------------
+# Simple crash test:
+#
+# crash-1.1: Create a database with a table with two rows.
+# crash-1.2: Run a 'DELETE FROM abc WHERE a = 1' that crashes during
+#            the first journal-sync.
+# crash-1.3: Ensure the database is in the same state as after crash-1.1.
+# crash-1.4: Run a 'DELETE FROM abc WHERE a = 1' that crashes during
+#            the first database-sync.
+# crash-1.5: Ensure the database is in the same state as after crash-1.1.
+# crash-1.6: Run a 'DELETE FROM abc WHERE a = 1' that crashes during
+#            the second journal-sync.
+# crash-1.7: Ensure the database is in the same state as after crash-1.1.
+#
+# Tests 1.8 through 1.11 test for crashes on the third journal sync and
+# second database sync.  Neither of these is required in such a small test
+# case, so these tests are just to verify that the test infrastructure
+# operates as expected.
+#
+do_test crash-1.1 {
+  execsql {
+    CREATE TABLE abc(a, b, c);
+    INSERT INTO abc VALUES(1, 2, 3);
+    INSERT INTO abc VALUES(4, 5, 6);
+  }
+  set ::sig [signature]
+  expr 0
+} {0}
+for {set i 0} {$i<10} {incr i} {
+  set seed [expr {int(abs(rand()*10000))}]
+  do_test crash-1.2.$i {
+    crashsql -delay 1 -file test.db-journal -seed $seed {
+      DELETE FROM abc WHERE a = 1;
+    }
+  } {1 {child process exited abnormally}}
+  do_test crash-1.3.$i {
+    signature
+  } $::sig
+}
+do_test crash-1.4 {
+  crashsql -delay 1 -file test.db {
+    DELETE FROM abc WHERE a = 1;
+  }
+} {1 {child process exited abnormally}}
+do_test crash-1.5 {
+  signature
+} $::sig
+do_test crash-1.6 {
+  crashsql -delay 2 -file test.db-journal {
+    DELETE FROM abc WHERE a = 1;
+  }
+} {1 {child process exited abnormally}}
+do_test crash-1.7 {
+  catchsql {
+    SELECT * FROM abc;
+  }
+} {0 {1 2 3 4 5 6}}
+
+do_test crash-1.8 {
+  crashsql -delay 3 -file test.db-journal {
+    DELETE FROM abc WHERE a = 1;
+  }
+} {0 {}}
+do_test crash-1.9 {
+  catchsql {
+    SELECT * FROM abc;
+  }
+} {0 {4 5 6}}
+do_test crash-1.10 {
+  crashsql -delay 2 -file test.db {
+    DELETE FROM abc WHERE a = 4;
+  }
+} {0 {}}
+do_test crash-1.11 {
+  catchsql {
+    SELECT * FROM abc;
+  }
+} {0 {}}
+
+#--------------------------------------------------------------------------
+# The following tests test recovery when both the database file and the
+# journal file contain corrupt data. This can happen after pages are
+# written to the database file before a transaction is committed due to
+# cache-pressure.
+#
+# crash-2.1: Insert 18 pages of data into the database.
+# crash-2.2: Check the database file size looks ok.
+# crash-2.3: Delete 15 or so pages (with a 10 page page-cache), then crash.
+# crash-2.4: Ensure the database is in the same state as after crash-2.1.
+#
+# Test cases crash-2.5 and crash-2.6 check that the database is OK if the 
+# crash occurs during the main database file sync. But this isn't really
+# different from the crash-1.* cases.
+#
+do_test crash-2.1 {
+  execsql { BEGIN }
+  for {set n 0} {$n < 1000} {incr n} {
+    execsql "INSERT INTO abc VALUES($n, [expr 2*$n], [expr 3*$n])"
+  }
+  execsql { COMMIT }
+  set ::sig [signature]
+  execsql { SELECT sum(a), sum(b), sum(c) from abc }
+} {499500 999000 1498500}
+do_test crash-2.2 {
+  expr ([file size test.db] / 1024)>16
+} {1}
+do_test crash-2.3 {
+  crashsql -delay 2 -file test.db-journal {
+    DELETE FROM abc WHERE a < 800;
+  }
+} {1 {child process exited abnormally}}
+do_test crash-2.4 {
+  signature
+} $sig
+do_test crash-2.5 {
+  crashsql -delay 1 -file test.db {
+    DELETE FROM abc WHERE a<800;
+  }
+} {1 {child process exited abnormally}}
+do_test crash-2.6 {
+  signature
+} $sig
+
+#--------------------------------------------------------------------------
+# The crash-3.* test cases are essentially the same test as test case
+# crash-2.*, but with a more complicated data set. 
+#
+# The test is repeated a few times with different seeds for the random
+# number generator in the crashing executable. Because there is no way to
+# seed the random number generator directly, some SQL is added to the test
+# case to 'use up' a different quantity random numbers before the test SQL
+# is executed.
+#
+
+# Make sure the file is much bigger than the pager-cache (10 pages). This
+# ensures that cache-spills happen regularly.
+do_test crash-3.0 {
+  execsql {
+    INSERT INTO abc SELECT * FROM abc;
+    INSERT INTO abc SELECT * FROM abc;
+    INSERT INTO abc SELECT * FROM abc;
+    INSERT INTO abc SELECT * FROM abc;
+    INSERT INTO abc SELECT * FROM abc;
+  }
+  expr ([file size test.db] / 1024) > 450
+} {1}
+for {set i 1} {$i < $repeats} {incr i} {
+  set sig [signature]
+  do_test crash-3.$i.1 {
+     set seed [expr {int(abs(rand()*10000))}]
+     crashsql -delay [expr $i%5 + 1] -file test.db-journal -seed $seed "
+       BEGIN;
+       SELECT random() FROM abc LIMIT $i;
+       INSERT INTO abc VALUES(randstr(10,10), 0, 0);
+       DELETE FROM abc WHERE random()%10!=0;
+       COMMIT;
+     "
+  } {1 {child process exited abnormally}}
+  do_test crash-3.$i.2 {
+    signature
+  } $sig
+} 
+
+#--------------------------------------------------------------------------
+# The following test cases - crash-4.* - test the correct recovery of the
+# database when a crash occurs during a multi-file transaction.
+#
+# crash-4.1.*: Test recovery when crash occurs during sync() of the 
+#              main database journal file.
+# crash-4.2.*: Test recovery when crash occurs during sync() of an 
+#              attached database journal file.
+# crash-4.3.*: Test recovery when crash occurs during sync() of the master
+#              journal file. 
+#
+ifcapable attach {
+  do_test crash-4.0 {
+    forcedelete test2.db
+    forcedelete test2.db-journal
+    execsql {
+      ATTACH 'test2.db' AS aux;
+      PRAGMA aux.default_cache_size = 10;
+      CREATE TABLE aux.abc2 AS SELECT 2*a as a, 2*b as b, 2*c as c FROM abc;
+    }
+    expr ([file size test2.db] / 1024) > 450
+  } {1}
+  
+  set fin 0
+  for {set i 1} {$i<$repeats} {incr i} {
+    set seed [expr {int(abs(rand()*10000))}]
+    set sig [signature]
+    set sig2 [signature2]
+    do_test crash-4.1.$i.1 {
+       set c [crashsql -delay $i -file test.db-journal -seed $::seed "
+         ATTACH 'test2.db' AS aux;
+         BEGIN;
+         SELECT randstr($i,$i) FROM abc LIMIT $i;
+         INSERT INTO abc VALUES(randstr(10,10), 0, 0);
+         DELETE FROM abc WHERE random()%10!=0;
+         INSERT INTO abc2 VALUES(randstr(10,10), 0, 0);
+         DELETE FROM abc2 WHERE random()%10!=0;
+         COMMIT;
+       "]
+       if { $c == {0 {}} } {
+         set ::fin 1
+         set c {1 {child process exited abnormally}}
+       }
+       set c
+    } {1 {child process exited abnormally}}
+    if {$::fin} break
+    do_test crash-4.1.$i.2 {
+      signature
+    } $sig
+    do_test crash-4.1.$i.3 {
+      signature2
+    } $sig2
+  } 
+  set i 0
+  set fin 0
+  while {[incr i]} {
+    set seed [expr {int(abs(rand()*10000))}]
+    set sig [signature]
+    set sig2 [signature2]
+    set ::fin 0
+    do_test crash-4.2.$i.1 {
+       set c [crashsql -delay $i -file test2.db-journal -seed $::seed "
+         ATTACH 'test2.db' AS aux;
+         BEGIN;
+         SELECT randstr($i,$i) FROM abc LIMIT $i;
+         INSERT INTO abc VALUES(randstr(10,10), 0, 0);
+         DELETE FROM abc WHERE random()%10!=0;
+         INSERT INTO abc2 VALUES(randstr(10,10), 0, 0);
+         DELETE FROM abc2 WHERE random()%10!=0;
+         COMMIT;
+       "]
+       if { $c == {0 {}} } {
+         set ::fin 1
+         set c {1 {child process exited abnormally}}
+       }
+       set c
+    } {1 {child process exited abnormally}}
+    if { $::fin } break
+    do_test crash-4.2.$i.2 {
+      signature
+    } $sig
+    do_test crash-4.2.$i.3 {
+      signature2
+    } $sig2
+  } 
+  for {set i 1} {$i < 5} {incr i} {
+    set sig [signature]
+    set sig2 [signature2]
+    do_test crash-4.3.$i.1 {
+       crashsql -delay 1 -file test.db-mj* "
+         ATTACH 'test2.db' AS aux;
+         BEGIN;
+         SELECT random() FROM abc LIMIT $i;
+         INSERT INTO abc VALUES(randstr(10,10), 0, 0);
+         DELETE FROM abc WHERE random()%10!=0;
+         INSERT INTO abc2 VALUES(randstr(10,10), 0, 0);
+         DELETE FROM abc2 WHERE random()%10!=0;
+         COMMIT;
+       "
+    } {1 {child process exited abnormally}}
+    do_test crash-4.3.$i.2 {
+      signature
+    } $sig
+    do_test crash-4.3.$i.3 {
+      signature2
+    } $sig2
+  }
+}
+
+#--------------------------------------------------------------------------
+# The following test cases - crash-5.* - exposes a bug that existed in the
+# sqlite3pager_movepage() API used by auto-vacuum databases.
+# database when a crash occurs during a multi-file transaction. See comments
+# in test crash-5.3 for details.
+#
+db close
+forcedelete test.db
+sqlite3 db test.db
+do_test crash-5.1 {
+  execsql {
+    CREATE TABLE abc(a, b, c);                          -- Root page 3
+    INSERT INTO abc VALUES(randstr(1500,1500), 0, 0);   -- Overflow page 4
+    INSERT INTO abc SELECT * FROM abc;
+    INSERT INTO abc SELECT * FROM abc;
+    INSERT INTO abc SELECT * FROM abc;
+  }
+} {}
+do_test crash-5.2 {
+  expr [file size test.db] / 1024
+} [expr [string match [execsql {pragma auto_vacuum}] 1] ? 11 : 10]
+set sig [signature]
+do_test crash-5.3 {
+# The SQL below is used to expose a bug that existed in
+# sqlite3pager_movepage() during development of the auto-vacuum feature. It
+# functions as follows:
+# 
+# 1: Begin a transaction.
+# 2: Put page 4 on the free-list (was the overflow page for the row deleted).
+# 3: Write data to page 4 (it becomes the overflow page for the row inserted).
+#    The old page 4 data has been written to the journal file, but the
+#    journal file has not been sync()hronized.
+# 4: Create a table, which calls sqlite3pager_movepage() to move page 4
+#    to the end of the database (page 12) to make room for the new root-page.
+# 5: Put pressure on the pager-cache. This results in page 4 being written
+#    to the database file to make space in the cache to load a new page. The
+#    bug was that page 4 was written to the database file before the journal
+#    is sync()hronized.
+# 6: Commit. A crash occurs during the sync of the journal file.
+#
+# End result: Before the bug was fixed, data has been written to page 4 of the
+# database file and the journal file does not contain trustworthy rollback
+# data for this page.
+#
+  crashsql -delay 1 -file test.db-journal {
+    BEGIN;                                             -- 1
+    DELETE FROM abc WHERE oid = 1;                     -- 2
+    INSERT INTO abc VALUES(randstr(1500,1500), 0, 0);  -- 3
+    CREATE TABLE abc2(a, b, c);                        -- 4
+    SELECT * FROM abc;                                 -- 5
+    COMMIT;                                            -- 6
+  }
+} {1 {child process exited abnormally}}
+integrity_check crash-5.4
+do_test crash-5.5 {
+  signature
+} $sig
+
+#--------------------------------------------------------------------------
+# The following test cases - crash-6.* - test that a DROP TABLE operation
+# is correctly rolled back in the event of a crash while the database file
+# is being written. This is mainly to test that all pages are written to the
+# journal file before truncation in an auto-vacuum database.
+#
+do_test crash-6.1 {
+  crashsql -delay 1 -file test.db {
+    DROP TABLE abc;
+  }
+} {1 {child process exited abnormally}}
+do_test crash-6.2 {
+  signature
+} $sig
+
+#--------------------------------------------------------------------------
+# These test cases test the case where the master journal file name is 
+# corrupted slightly so that the corruption has to be detected by the
+# checksum.
+do_test crash-7.1 {
+  crashsql -delay 1 -file test.db {
+    ATTACH 'test2.db' AS aux;
+    BEGIN;
+    INSERT INTO abc VALUES(randstr(1500,1500), 0, 0);
+    INSERT INTO abc2 VALUES(randstr(1500,1500), 0, 0);
+    COMMIT;
+  }
+
+  # Change the checksum value for the master journal name.
+  set f [open test.db-journal a]
+  fconfigure $f -translation binary
+  seek $f [expr [file size test.db-journal] - 12]
+  puts -nonewline $f "\00\00\00\00"
+  close $f
+} {}
+do_test crash-7.2 {
+  signature
+} $sig
+
+finish_test
diff --git a/test/crash2.test b/test/crash2.test
new file mode 100644
index 0000000000000000000000000000000000000000..c74f6c2ffa27c0461deab93f502c15f10808a9fa
--- /dev/null
+++ b/test/crash2.test
@@ -0,0 +1,133 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# The focus of this file is testing the ability of the database to
+# uses its rollback journal to recover intact (no database corruption)
+# from a power failure during the middle of a COMMIT. Even more
+# specifically, the tests in this file verify this functionality
+# for storage mediums with various sector sizes.
+#
+# $Id: crash2.test,v 1.6 2008/08/25 07:12:29 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !crashtest {
+  finish_test
+  return
+}
+
+db close
+
+# This test is designed to check that the crash-test infrastructure
+# can create files that do not consist of an integer number of
+# simulated disk blocks (i.e. 3KB file using 2KB disk blocks).
+#
+do_test crash2-1.1 {
+  crashsql -delay 500 -file test.db -blocksize 2048 {
+    PRAGMA auto_vacuum=OFF;
+    PRAGMA page_size=1024;
+    BEGIN;
+    CREATE TABLE abc AS SELECT 1 AS a, 2 AS b, 3 AS c;
+    CREATE TABLE def AS SELECT 1 AS d, 2 AS e, 3 AS f;
+    COMMIT;
+  }
+  file size test.db
+} {3072}
+
+for {set ii 0} {$ii < 5} {incr ii} {
+
+  # Simple test using the database created above: Create a new
+  # table so that page 1 and page 4 are modified. Using a
+  # block-size of 2048 and page-size of 1024, this means
+  # pages 2 and 3 must also be saved in the journal to avoid
+  # risking corruption.
+  #
+  # The loop is so that this test can be run with a couple
+  # of different seeds for the random number generator.
+  #
+  do_test crash2-1.2.$ii {
+    crashsql -file test.db -blocksize 2048 [subst {
+      [string repeat {SELECT random();} $ii]
+      CREATE TABLE hij(h, i, j);
+    }]
+    sqlite3 db test.db
+    db eval {PRAGMA integrity_check}
+  } {ok}
+}
+
+proc signature {} {
+  return [db eval {SELECT count(*), md5sum(a), md5sum(b), md5sum(c) FROM abc}]
+}
+
+# Test case for crashing during journal sync with simulated
+# sector-size values from 1024 to 8192.
+#
+do_test crash2-2.0 {
+  execsql BEGIN
+  for {set n 0} {$n < 1000} {incr n} {
+    execsql "INSERT INTO abc VALUES($n, [expr 2*$n], [expr 3*$n])"
+  }
+  execsql {
+    INSERT INTO abc SELECT * FROM abc;
+    INSERT INTO abc SELECT * FROM abc;
+    INSERT INTO abc SELECT * FROM abc;
+    INSERT INTO abc SELECT * FROM abc;
+    INSERT INTO abc SELECT * FROM abc;
+  }
+  execsql COMMIT
+  expr ([file size test.db] / 1024) > 450
+} {1}
+for {set i 1} {$i < 30} {incr i} {
+  set sig [signature]
+  set sector [expr 1024 * 1<<($i%4)]
+  db close
+  do_test crash2-2.$i.1 {
+     crashsql -blocksize $sector -delay [expr $i%5 + 1] -file test.db-journal "
+       PRAGMA temp_store = memory;
+       BEGIN;
+       SELECT random() FROM abc LIMIT $i;
+       INSERT INTO abc SELECT randstr(10,10), 0, 0 FROM abc WHERE random()%2==0;
+       DELETE FROM abc WHERE random()%2!=0;
+       COMMIT;
+     "
+  } {1 {child process exited abnormally}}
+  do_test crash2-2.$i.2 {
+    sqlite3 db test.db
+    signature
+  } $sig
+} 
+
+
+# Test case for crashing during database sync with simulated
+# sector-size values from 1024 to 8192.
+#
+for {set i 1} {$i < 10} {incr i} {
+  set sig [signature]
+  set sector [expr 1024 * 1<<($i%4)]
+  db close
+  do_test crash2-3.$i.1 {
+     crashsql -blocksize $sector -file test.db "
+       BEGIN;
+       SELECT random() FROM abc LIMIT $i;
+       INSERT INTO abc SELECT randstr(10,10), 0, 0 FROM abc WHERE random()%2==0;
+       DELETE FROM abc WHERE random()%2!=0;
+       COMMIT;
+     "
+  } {1 {child process exited abnormally}}
+  do_test crash2-3.$i.2 {
+    sqlite3 db test.db
+    signature
+  } $sig
+} 
+
+finish_test
diff --git a/test/crash3.test b/test/crash3.test
new file mode 100644
index 0000000000000000000000000000000000000000..7958af992ed76aa9053824cd64e801a85e534c9f
--- /dev/null
+++ b/test/crash3.test
@@ -0,0 +1,190 @@
+# 2007 August 23
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains tests that verify that SQLite can correctly rollback
+# databases after crashes when using the special IO modes triggered 
+# by device IOCAP flags.
+#
+# $Id: crash3.test,v 1.4 2008/07/12 14:52:20 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !crashtest {
+  finish_test
+  return
+}
+
+proc do_test2 {name tcl res1 res2} {
+  set script [subst -nocommands {
+    do_test $name {
+      set res1 {$res1}
+      set res2 {$res2}
+      set res [eval {$tcl}]
+      if {[set res] eq [set res1] || [set res] eq [set res2]} {
+        set res "{[set res1]} or {[set res2]}"
+      }
+      set res
+    } {{$res1} or {$res2}}
+  }]
+  uplevel $script
+}
+
+# This block tests crash-recovery when the IOCAP_ATOMIC flags is set.
+#
+# Each iteration of the following loop sets up the database to contain
+# the following schema and data:
+#
+#    CREATE TABLE abc(a, b, c);
+#    INSERT INTO abc VALUES(1, 2, 3);
+#
+# Then execute the SQL statement, scheduling a crash for part-way through
+# the first sync() of either the database file or the journal file (often
+# the journal file is not required - meaning no crash occurs).
+#
+# After the crash (or absence of a crash), open the database and 
+# verify that:
+#
+#   * The integrity check passes, and
+#   * The contents of table abc is either {1 2 3} or the value specified
+#     to the right of the SQL statement below.
+#
+# The procedure is repeated 10 times for each SQL statement. Five times
+# with the crash scheduled for midway through the first journal sync (if 
+# any), and five times with the crash midway through the database sync.
+#
+set tn 1
+foreach {sql res2} [list \
+  {INSERT INTO abc VALUES(4, 5, 6)}                    {1 2 3 4 5 6} \
+  {DELETE FROM abc}                                    {}    \
+  {INSERT INTO abc SELECT * FROM abc}                  {1 2 3 1 2 3} \
+  {UPDATE abc SET a = 2}                               {2 2 3}       \
+  {INSERT INTO abc VALUES(4, 5, randstr(1000,1000))}   {n/a} \
+  {CREATE TABLE def(d, e, f)}                          {n/a} \
+] {
+  for {set ii 0} {$ii < 10} {incr ii} {
+
+    db close
+    forcedelete test.db test.db-journal
+    sqlite3 db test.db
+    do_test crash3-1.$tn.1 {
+      execsql {
+        PRAGMA page_size = 1024;
+        BEGIN;
+        CREATE TABLE abc(a, b, c);
+        INSERT INTO abc VALUES(1, 2, 3);
+        COMMIT;
+      }
+    } {}
+    db close
+  
+    set crashfile test.db
+    if {($ii%2)==0} { append crashfile -journal }
+    set rand "SELECT randstr($tn,$tn);"
+    do_test crash3-1.$tn.2 [subst {
+      crashsql -file $crashfile -char atomic {$rand $sql}
+      sqlite3 db test.db
+      execsql { PRAGMA integrity_check; }
+    }] {ok}
+  
+    do_test2 crash3-1.$tn.3 {
+      execsql { SELECT * FROM abc }
+    } {1 2 3} $res2
+
+    incr tn
+  }
+}
+
+# This block tests both the IOCAP_SEQUENTIAL and IOCAP_SAFE_APPEND flags.
+#
+db close
+forcedelete test.db test.db-journal
+sqlite3 db test.db
+do_test crash3-2.0 {
+  execsql {
+    BEGIN;
+    CREATE TABLE abc(a PRIMARY KEY, b, c);
+    CREATE TABLE def(d PRIMARY KEY, e, f);
+    PRAGMA default_cache_size = 10;
+    INSERT INTO abc VALUES(randstr(10,1000),randstr(10,1000),randstr(10,1000));
+    INSERT INTO abc 
+      SELECT randstr(10,1000),randstr(10,1000),randstr(10,1000) FROM abc;
+    INSERT INTO abc 
+      SELECT randstr(10,1000),randstr(10,1000),randstr(10,1000) FROM abc;
+    INSERT INTO abc 
+      SELECT randstr(10,1000),randstr(10,1000),randstr(10,1000) FROM abc;
+    INSERT INTO abc 
+      SELECT randstr(10,1000),randstr(10,1000),randstr(10,1000) FROM abc;
+    INSERT INTO abc 
+      SELECT randstr(10,1000),randstr(10,1000),randstr(10,1000) FROM abc;
+    INSERT INTO abc 
+      SELECT randstr(10,1000),randstr(10,1000),randstr(10,1000) FROM abc;
+    COMMIT;
+  }
+} {}
+
+set tn 1
+foreach {::crashfile ::delay ::char} {
+  test.db         1 sequential
+  test.db         1 safe_append
+  test.db-journal 1 sequential
+  test.db-journal 1 safe_append
+  test.db-journal 2 safe_append
+  test.db-journal 2 sequential
+  test.db-journal 3 sequential
+  test.db-journal 3 safe_append
+} {
+  for {set ii 0} {$ii < 100} {incr ii} {
+    set ::SQL [subst {
+      SELECT randstr($ii,$ii+10);
+      BEGIN;
+      DELETE FROM abc WHERE random()%5;
+      INSERT INTO abc 
+        SELECT randstr(10,1000),randstr(10,1000),randstr(10,1000) 
+        FROM abc
+        WHERE (random()%5)==0;
+      DELETE FROM def WHERE random()%5;
+      INSERT INTO def 
+        SELECT randstr(10,1000),randstr(10,1000),randstr(10,1000) 
+        FROM def
+        WHERE (random()%5)==0;
+      COMMIT;
+    }]
+
+    do_test crash3-2.$tn.$ii {
+      crashsql -file $::crashfile -delay $::delay -char $::char $::SQL
+      db close
+      sqlite3 db test.db
+      execsql {PRAGMA integrity_check}
+    } {ok}
+  }
+  incr tn
+}
+
+# The following block tests an interaction between IOCAP_ATOMIC and
+# IOCAP_SEQUENTIAL. At one point, if both flags were set, small
+# journal files that contained only a single page, but were required 
+# for some other reason (i.e. nTrunk) were not being written to
+# disk.
+#
+for {set ii 0} {$ii < 10} {incr ii} {
+  db close
+  forcedelete test.db test.db-journal
+  crashsql -file test.db -char {sequential atomic} {
+    CREATE TABLE abc(a, b, c);
+  }
+  sqlite3 db test.db
+  do_test crash3-3.$ii {
+    execsql {PRAGMA integrity_check}
+  } {ok}
+}
+
+finish_test
diff --git a/test/crash4.test b/test/crash4.test
new file mode 100644
index 0000000000000000000000000000000000000000..f68caecdef3eeb4252907264201666a8ccd83388
--- /dev/null
+++ b/test/crash4.test
@@ -0,0 +1,102 @@
+# 2008 January 8
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains additional tests to verify that SQLite database
+# file survive a power loss or OS crash.
+#
+# $Id: crash4.test,v 1.3 2008/01/16 17:46:38 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !crashtest {
+  finish_test
+  return
+}
+
+
+# A sequence of SQL commands:
+#
+set sql_cmd_list {
+  {CREATE TABLE a(id INTEGER, name CHAR(50))}
+  {INSERT INTO a(id,name) VALUES(1,'one')}
+  {INSERT INTO a(id,name) VALUES(2,'two')}
+  {INSERT INTO a(id,name) VALUES(3,'three')}
+  {INSERT INTO a(id,name) VALUES(4,'four')}
+  {INSERT INTO a(id,name) VALUES(5,'five')}
+  {INSERT INTO a(id,name) VALUES(6,'six')}
+  {INSERT INTO a(id,name) VALUES(7,'seven')}
+  {INSERT INTO a(id,name) VALUES(8,'eight')}
+  {INSERT INTO a(id,name) VALUES(9,'nine')}
+  {INSERT INTO a(id,name) VALUES(10,'ten')}
+  {UPDATE A SET name='new text for row 3' WHERE id=3}
+}
+
+# Assume that a database is created by evaluating the SQL statements
+# in $sql_cmd_list.  Compute a set of checksums that capture the state
+# of the database after each statement.  Also include a checksum for
+# the state of the database prior to any of these statements.
+#
+set crash4_cksum_set {}
+lappend crash4_cksum_set [allcksum db]
+foreach cmd $sql_cmd_list {
+  db eval $cmd
+  lappend crash4_cksum_set [allcksum db]
+}
+
+# Run the sequence of SQL statements shown above repeatedly.
+# Close and reopen the database right before the UPDATE statement.
+# On each repetition, introduce database corruption typical of
+# what might be seen in a power loss or OS crash.  
+#
+# Slowly increase the delay before the crash, repeating the test
+# over and over.  Stop testing when the entire sequence of SQL
+# statements runs to completing without hitting the crash.
+#
+for {set cnt 1; set fin 0} {!$fin} {incr cnt} {
+  db close
+  forcedelete test.db test.db-journal
+  do_test crash4-1.$cnt.1 {
+    set seed [expr {int(abs(rand()*10000))}]
+    set delay [expr {int($cnt/50)+1}]
+    set file [expr {($cnt&1)?"test.db":"test.db-journal"}]
+    set c [crashsql -delay $delay -file $file -seed $seed -tclbody {
+      db eval {CREATE TABLE a(id INTEGER, name CHAR(50))}
+      db eval {INSERT INTO a(id,name) VALUES(1,'one')}
+      db eval {INSERT INTO a(id,name) VALUES(2,'two')}
+      db eval {INSERT INTO a(id,name) VALUES(3,'three')}
+      db eval {INSERT INTO a(id,name) VALUES(4,'four')}
+      db eval {INSERT INTO a(id,name) VALUES(5,'five')}
+      db eval {INSERT INTO a(id,name) VALUES(6,'six')}
+      db eval {INSERT INTO a(id,name) VALUES(7,'seven')}
+      db eval {INSERT INTO a(id,name) VALUES(8,'eight')}
+      db eval {INSERT INTO a(id,name) VALUES(9,'nine')}
+      db eval {INSERT INTO a(id,name) VALUES(10,'ten')}
+      db close
+      sqlite3 db test.db
+      db eval {UPDATE A SET name='new text for row 3' WHERE id=3}
+      db close
+    } {}]
+    if {$c==[list 0 {}]} {
+      set ::fin 1
+      set c [list 1 {child process exited abnormally}]
+    }
+    set c
+  } {1 {child process exited abnormally}}
+  sqlite3 db test.db
+  integrity_check crash4-1.$cnt.2
+  do_test crash4-1.$cnt.3 {
+    set x [lsearch $::crash4_cksum_set [allcksum db]]
+    expr {$x>=0}
+  } {1}
+}
+
+finish_test
diff --git a/test/crash5.test b/test/crash5.test
new file mode 100644
index 0000000000000000000000000000000000000000..fc078b3504cb1673d3f1b46ee6d02c60c6ad13ca
--- /dev/null
+++ b/test/crash5.test
@@ -0,0 +1,127 @@
+
+# 2007 Aug 13
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+# This file tests aspects of recovery from a malloc() failure
+# in a CREATE INDEX statement.
+#
+# $Id: crash5.test,v 1.3 2008/07/12 14:52:20 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Only run these tests if memory debugging is turned on.
+#
+ifcapable !crashtest||!memorymanage {
+   puts "Skipping crash5 tests: not compiled with -DSQLITE_ENABLE_MEMORY_MANAGEMENT..."
+   finish_test
+   return
+}
+
+db close
+
+for {set ii 0} {$ii < 10} {incr ii} {
+  for {set jj 1} {$jj < 100} {incr jj} {
+
+    # Set up the database so that it is an auto-vacuum database 
+    # containing a single table (root page 3) with a single row. 
+    # The row has an overflow page (page 4).
+    forcedelete test.db test.db-journal
+    sqlite3 db test.db
+    set c [string repeat 3 1500]
+    db eval {
+      pragma auto_vacuum = 1;
+      CREATE TABLE t1(a, b, c);
+      INSERT INTO t1 VALUES('1111111111', '2222222222', $c);
+    }
+    db close
+
+    do_test crash5-$ii.$jj.1 {
+      crashsql -delay 1 -file test.db-journal -seed $ii -tclbody [join [list \
+        [list set iFail $jj] {
+        proc get_pwd {} {
+          if {$::tcl_platform(platform) eq "windows"} {
+            if {[info exists ::env(ComSpec)]} {
+              set comSpec $::env(ComSpec)
+            } else {
+              # NOTE: Hard-code the typical default value.
+              set comSpec {C:\Windows\system32\cmd.exe}
+            }
+            return [string map [list \\ /] \
+              [string trim [exec -- $comSpec /c echo %CD%]]]
+          } else {
+            return [pwd]
+          }
+        }
+        sqlite3_crashparams 0 [file join [get_pwd] test.db-journal]
+      
+        # Begin a transaction and evaluate a "CREATE INDEX" statement
+        # with the iFail'th malloc() set to fail. This operation will
+        # have to move the current contents of page 4 (the overflow
+        # page) to make room for the new root page. The bug is that
+        # if malloc() fails at a particular point in sqlite3PagerMovepage(),
+        # sqlite mistakenly thinks that the page being moved (page 4) has 
+        # been safely synced into the journal. If the page is written
+        # to later in the transaction, it may be written out to the database
+        # before the relevant part of the journal has been synced.
+        #
+        db eval BEGIN
+        sqlite3_memdebug_fail $iFail -repeat 0
+        set rc [catch {db eval { CREATE UNIQUE INDEX i1 ON t1(a); }} msg]
+#       puts "$msg ac=[sqlite3_get_autocommit db] iFail=$iFail"
+#       puts "fail=[sqlite3_memdebug_fail -1]"
+      
+        if {$rc} {
+          # If the transaction is still active (it may not be if the malloc()
+          # failure occurred in the OS layer), write to the database. Make sure
+          # page 4 is among those written.
+          #
+          if {![sqlite3_get_autocommit db]} {
+            db eval {
+              DELETE FROM t1;  -- This will put page 4 on the free list.
+              INSERT INTO t1 VALUES('111111111', '2222222222', '33333333');
+              INSERT INTO t1 SELECT * FROM t1;                     -- 2
+              INSERT INTO t1 SELECT * FROM t1;                     -- 4
+              INSERT INTO t1 SELECT * FROM t1;                     -- 8
+              INSERT INTO t1 SELECT * FROM t1;                     -- 16
+              INSERT INTO t1 SELECT * FROM t1;                     -- 32
+              INSERT INTO t1 SELECT * FROM t1 WHERE rowid%2;       -- 48
+            }
+          }
+          
+          # If the right malloc() failed during the 'CREATE INDEX' above and
+          # the transaction was not rolled back, then the sqlite cache now 
+          # has a dirty page 4 that it incorrectly believes is already safely
+          # in the synced part of the journal file. When 
+          # sqlite3_release_memory() is called sqlite tries to free memory
+          # by writing page 4 out to the db file. If it crashes later on,
+          # before syncing the journal... Corruption!
+          #
+          sqlite3_crashparams 1 [file join [get_pwd] test.db-journal]
+          sqlite3_release_memory 8092
+        }
+      }]] {}
+      expr 1
+    } {1}
+  
+    sqlite3 db test.db
+    do_test crash5-$ii.$jj.2 {
+      db eval {pragma integrity_check}
+    } {ok}
+    do_test crash5-$ii.$jj.3 {
+      db eval {SELECT * FROM t1}
+    } [list 1111111111 2222222222 $::c]
+    db close
+  }
+}
+
+
+finish_test
diff --git a/test/crash6.test b/test/crash6.test
new file mode 100644
index 0000000000000000000000000000000000000000..69c19464b3f4ad55318cd98280f24322b6492557
--- /dev/null
+++ b/test/crash6.test
@@ -0,0 +1,118 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file tests that rollback journals for databases that use a 
+# page-size other than the default page-size can be rolled back Ok.
+#
+# $Id: crash6.test,v 1.2 2008/04/14 15:27:19 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !crashtest {
+  finish_test
+  return
+}
+
+for {set ii 0} {$ii < 10} {incr ii} {
+  catch {db close}
+  forcedelete test.db test.db-journal
+  crashsql -delay 2 -file test.db {
+    PRAGMA auto_vacuum=OFF;
+    PRAGMA page_size=4096;
+    BEGIN;
+    CREATE TABLE abc AS SELECT 1 AS a, 2 AS b, 3 AS c;
+    COMMIT;
+    BEGIN;
+    CREATE TABLE def AS SELECT 1 AS d, 2 AS e, 3 AS f;
+    COMMIT;
+  }
+  sqlite3 db test.db
+  integrity_check crash6-1.$ii
+}
+
+for {set ii 0} {$ii < 10} {incr ii} {
+  catch {db close}
+  forcedelete test.db test.db-journal
+  sqlite3 db test.db
+  execsql {
+    PRAGMA auto_vacuum=OFF;
+    PRAGMA page_size=2048;
+    BEGIN;
+    CREATE TABLE abc AS SELECT 1 AS a, 2 AS b, 3 AS c;
+    COMMIT;
+  }
+  db close
+  crashsql -delay 1 -file test.db {
+    INSERT INTO abc VALUES(5, 6, 7);
+  }
+  sqlite3 db test.db
+  integrity_check crash6-2.$ii
+}
+
+proc signature {} {
+  return [db eval {SELECT count(*), md5sum(a), md5sum(b), md5sum(c) FROM abc}]
+}
+
+# Test case for crashing during database sync with page-size values 
+# from 1024 to 8192.
+#
+for {set ii 0} {$ii < 30} {incr ii} {
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+
+  set pagesize [expr 1024 << ($ii % 4)]
+  if {$pagesize>$::SQLITE_MAX_PAGE_SIZE} {
+    set pagesize $::SQLITE_MAX_PAGE_SIZE
+  }
+  do_test crash6-3.$ii.0 {
+    execsql "pragma page_size = $pagesize"
+    execsql "pragma page_size"
+  } $pagesize
+
+  do_test crash6-3.$ii.1 {
+  
+    execsql BEGIN
+    execsql {CREATE TABLE abc(a, b, c)}
+    for {set n 0} {$n < 1000} {incr n} {
+      execsql "INSERT INTO abc VALUES($n, [expr 2*$n], [expr 3*$n])"
+    }
+    execsql {
+      INSERT INTO abc SELECT * FROM abc;
+      INSERT INTO abc SELECT * FROM abc;
+      INSERT INTO abc SELECT * FROM abc;
+      INSERT INTO abc SELECT * FROM abc;
+      INSERT INTO abc SELECT * FROM abc;
+    }
+    execsql COMMIT
+    expr ([file size test.db] / 1024) > 450
+  } {1}
+
+  set sig [signature]
+  db close
+
+  do_test crash6-3.$ii.2 {
+     crashsql -file test.db "
+       BEGIN;
+       SELECT random() FROM abc LIMIT $ii;
+       INSERT INTO abc SELECT randstr(10,10), 0, 0 FROM abc WHERE random()%2==0;
+       DELETE FROM abc WHERE random()%2!=0;
+       COMMIT;
+     "
+  } {1 {child process exited abnormally}}
+
+  do_test crash6-3.$ii.3 {
+    sqlite3 db test.db
+    signature
+  } $sig
+} 
+
+finish_test
diff --git a/test/crash7.test b/test/crash7.test
new file mode 100644
index 0000000000000000000000000000000000000000..482999cbfd9575921d5e6f5336f04e3143db101d
--- /dev/null
+++ b/test/crash7.test
@@ -0,0 +1,116 @@
+# 2008 March 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# $Id: crash7.test,v 1.1 2008/04/03 14:36:26 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix crash7
+
+ifcapable !crashtest {
+  finish_test
+  return
+}
+
+proc signature {} {
+  return [db eval {SELECT count(*), md5sum(a), md5sum(b), md5sum(c) FROM abc}]
+}
+
+foreach f [list test.db test.db-journal] {
+  for {set ii 1} {$ii < 64} {incr ii} {
+    db close
+    delete_file test.db
+    sqlite3 db test.db
+  
+    set from_size [expr 1024 << ($ii&3)]
+    set to_size   [expr 1024 << (($ii>>2)&3)]
+  
+    execsql "
+      PRAGMA page_size = $from_size;
+      BEGIN;
+      CREATE TABLE abc(a PRIMARY KEY, b, c);
+      INSERT INTO abc VALUES(randomblob(100), randomblob(200), randomblob(1000));
+      INSERT INTO abc 
+          SELECT randomblob(1000), randomblob(200), randomblob(100)
+          FROM abc;
+      INSERT INTO abc 
+          SELECT randomblob(100), randomblob(200), randomblob(1000)
+          FROM abc;
+      INSERT INTO abc 
+          SELECT randomblob(100), randomblob(200), randomblob(1000)
+          FROM abc;
+      INSERT INTO abc 
+          SELECT randomblob(100), randomblob(200), randomblob(1000)
+          FROM abc;
+      INSERT INTO abc 
+          SELECT randomblob(100), randomblob(200), randomblob(1000)
+          FROM abc WHERE [expr $ii&16];
+      INSERT INTO abc 
+          SELECT randomblob(25), randomblob(45), randomblob(9456)
+          FROM abc WHERE [expr $ii&32];
+      INSERT INTO abc 
+          SELECT randomblob(100), randomblob(200), randomblob(1000)
+          FROM abc WHERE [expr $ii&8];
+      INSERT INTO abc 
+          SELECT randomblob(25), randomblob(45), randomblob(9456)
+          FROM abc WHERE [expr $ii&4];
+      COMMIT;
+    "
+  
+    set sig [signature]
+    db close
+  
+    do_test crash7-1.$ii.crash {
+       crashsql -file $f "
+         PRAGMA page_size = $to_size;
+         VACUUM;
+       "
+    } {1 {child process exited abnormally}}
+  
+    sqlite3 db test.db
+    integrity_check crash7-1.$ii.integrity
+  } 
+}
+
+db close
+forcedelete test.db
+sqlite3 db test.db
+do_execsql_test 2.0 {
+  CREATE TABLE t1(a, b, UNIQUE(a, b));
+  INSERT INTO t1 VALUES(randomblob(100), randomblob(100));
+  INSERT INTO t1 SELECT randomblob(100), randomblob(100) FROM t1;
+  INSERT INTO t1 SELECT randomblob(100), randomblob(100) FROM t1;
+  INSERT INTO t1 SELECT randomblob(100), randomblob(100) FROM t1;
+  INSERT INTO t1 SELECT randomblob(100), randomblob(100) FROM t1;
+  INSERT INTO t1 SELECT randomblob(100), randomblob(100) FROM t1;
+  INSERT INTO t1 SELECT randomblob(100), randomblob(100) FROM t1;
+  INSERT INTO t1 SELECT randomblob(100), randomblob(100) FROM t1;
+  INSERT INTO t1 SELECT randomblob(100), randomblob(100) FROM t1;
+  INSERT INTO t1 SELECT randomblob(100), randomblob(100) FROM t1;
+  INSERT INTO t1 SELECT randomblob(100), randomblob(100) FROM t1;
+  INSERT INTO t1 SELECT randomblob(100), randomblob(100) FROM t1;
+  INSERT INTO t1 SELECT randomblob(100), randomblob(100) FROM t1;
+  INSERT INTO t1 SELECT randomblob(100), randomblob(100) FROM t1;
+  INSERT INTO t1 SELECT randomblob(100), randomblob(100) FROM t1;
+  DELETE FROM t1 WHERE rowid%2;
+}
+db_save_and_close
+
+for {set i 0} {$i < 20} {incr i} {
+  db_restore_and_reopen
+  do_test 2.[expr $i+1].1 {
+    crashsql -file test.db -seed $i {VACUUM}
+  } {1 {child process exited abnormally}}
+  do_execsql_test 2.[expr $i+1].2 { PRAGMA integrity_check } {ok}
+}
+
+
+finish_test
diff --git a/test/crash8.test b/test/crash8.test
new file mode 100644
index 0000000000000000000000000000000000000000..c07829979fb5f5964bf1a441f820c532f7608162
--- /dev/null
+++ b/test/crash8.test
@@ -0,0 +1,419 @@
+# 2009 January 8
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This test verifies a couple of specific potential data corruption 
+# scenarios involving crashes or power failures.
+#
+# Later: Also, some other specific scenarios required for coverage
+# testing that do not lead to corruption.
+#
+# $Id: crash8.test,v 1.4 2009/01/11 00:44:48 drh Exp $
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !crashtest {
+  finish_test
+  return
+}
+do_not_use_codec
+
+do_test crash8-1.1 {
+  execsql {
+    PRAGMA auto_vacuum=OFF;
+    CREATE TABLE t1(a, b);
+    CREATE INDEX i1 ON t1(a, b);
+    INSERT INTO t1 VALUES(1, randstr(1000,1000));
+    INSERT INTO t1 VALUES(2, randstr(1000,1000));
+    INSERT INTO t1 VALUES(3, randstr(1000,1000));
+    INSERT INTO t1 VALUES(4, randstr(1000,1000));
+    INSERT INTO t1 VALUES(5, randstr(1000,1000));
+    INSERT INTO t1 VALUES(6, randstr(1000,1000));
+    CREATE TABLE t2(a, b);
+    CREATE TABLE t3(a, b);
+    CREATE TABLE t4(a, b);
+    CREATE TABLE t5(a, b);
+    CREATE TABLE t6(a, b);
+    CREATE TABLE t7(a, b);
+    CREATE TABLE t8(a, b);
+    CREATE TABLE t9(a, b);
+    CREATE TABLE t10(a, b);
+    PRAGMA integrity_check
+  }
+} {ok}
+
+
+# Potential corruption scenario 1. A second process opens the database 
+# and modifies a large portion of it. It then opens a second transaction
+# and modifies a small part of the database, but crashes before it commits
+# the transaction. 
+#
+# When the first process accessed the database again, it was rolling back
+# the aborted transaction, but was not purging its in-memory cache (which
+# was loaded before the second process made its first, successful, 
+# modification). Producing an inconsistent cache.
+#
+do_test crash8-1.2 {
+  crashsql -delay 2 -file test.db {
+    PRAGMA cache_size = 10;
+    UPDATE t1 SET b = randstr(1000,1000);
+    INSERT INTO t9 VALUES(1, 2);
+  }
+} {1 {child process exited abnormally}}
+do_test crash8-1.3 {
+  execsql {PRAGMA integrity_check}
+} {ok}
+
+# Potential corruption scenario 2. The second process, operating in
+# persistent-journal mode, makes a large change to the database file
+# with a small in-memory cache. Such that more than one journal-header
+# was written to the file. It then opens a second transaction and makes
+# a smaller change that requires only a single journal-header to be
+# written to the journal file. The second change is such that the 
+# journal content written to the persistent journal file exactly overwrites
+# the first journal-header and set of subsequent records written by the
+# first, successful, change. The second process crashes before it can
+# commit its second change.
+#
+# When the first process accessed the database again, it was rolling back
+# the second aborted transaction, then continuing to rollback the second
+# and subsequent journal-headers written by the first, successful, change.
+# Database corruption.
+#
+do_test crash8.2.1 {
+  crashsql -delay 2 -file test.db {
+    PRAGMA journal_mode = persist;
+    PRAGMA cache_size = 10;
+    UPDATE t1 SET b = randstr(1000,1000);
+    PRAGMA cache_size = 100;
+    BEGIN;
+      INSERT INTO t2 VALUES('a', 'b');
+      INSERT INTO t3 VALUES('a', 'b');
+      INSERT INTO t4 VALUES('a', 'b');
+      INSERT INTO t5 VALUES('a', 'b');
+      INSERT INTO t6 VALUES('a', 'b');
+      INSERT INTO t7 VALUES('a', 'b');
+      INSERT INTO t8 VALUES('a', 'b');
+      INSERT INTO t9 VALUES('a', 'b');
+      INSERT INTO t10 VALUES('a', 'b');
+    COMMIT;
+  }
+} {1 {child process exited abnormally}}
+
+do_test crash8-2.3 {
+  execsql {PRAGMA integrity_check}
+} {ok}
+
+proc read_file {zFile} {
+  set fd [open $zFile]
+  fconfigure $fd -translation binary 
+  set zData [read $fd]
+  close $fd
+  return $zData
+}
+proc write_file {zFile zData} {
+  set fd [open $zFile w]
+  fconfigure $fd -translation binary 
+  puts -nonewline $fd $zData
+  close $fd
+}
+
+# The following tests check that SQLite will not roll back a hot-journal
+# file if the sector-size field in the first journal file header is
+# suspect. Definition of suspect:
+# 
+#    a) Not a power of 2, or                (crash8-3.5)
+#    b) Greater than 0x01000000 (16MB), or  (crash8-3.6)
+#    c) Less than 512.                      (crash8-3.7)
+#
+# Also test that SQLite will not rollback a hot-journal file with a
+# suspect page-size. In this case "suspect" means:
+# 
+#    a) Not a power of 2, or
+#    b) Less than 512, or
+#    c) Greater than SQLITE_MAX_PAGE_SIZE
+#
+if {[atomic_batch_write test.db]==0} {
+do_test crash8-3.1 {
+  list [file exists test.db-joural] [file exists test.db]
+} {0 1}
+do_test crash8-3.2 {
+  execsql {
+    PRAGMA synchronous = off;
+    BEGIN;
+    DELETE FROM t1;
+    SELECT count(*) FROM t1;
+  }
+} {0}
+do_test crash8-3.3 {
+  set zJournal [read_file test.db-journal]
+  execsql { 
+    COMMIT;
+    SELECT count(*) FROM t1;
+  }
+} {0}
+do_test crash8-3.4 {
+  binary scan [string range $zJournal 20 23] I nSector
+  set nSector
+} {512}
+
+do_test crash8-3.5 {
+  set zJournal2 [string replace $zJournal 20 23 [binary format I 513]]
+  write_file test.db-journal $zJournal2
+
+  execsql { 
+    SELECT count(*) FROM t1;
+    PRAGMA integrity_check
+  }
+} {0 ok}
+do_test crash8-3.6 {
+  set zJournal2 [string replace $zJournal 20 23 [binary format I 0x2000000]]
+  write_file test.db-journal $zJournal2
+  execsql { 
+    SELECT count(*) FROM t1;
+    PRAGMA integrity_check
+  }
+} {0 ok}
+do_test crash8-3.7 {
+  set zJournal2 [string replace $zJournal 20 23 [binary format I 256]]
+  write_file test.db-journal $zJournal2
+  execsql { 
+    SELECT count(*) FROM t1;
+    PRAGMA integrity_check
+  }
+} {0 ok}
+
+do_test crash8-3.8 {
+  set zJournal2 [string replace $zJournal 24 27 [binary format I 513]]
+  write_file test.db-journal $zJournal2
+
+  execsql { 
+    SELECT count(*) FROM t1;
+    PRAGMA integrity_check
+  }
+} {0 ok}
+do_test crash8-3.9 {
+  set big [expr $SQLITE_MAX_PAGE_SIZE * 2]
+  set zJournal2 [string replace $zJournal 24 27 [binary format I $big]]
+  write_file test.db-journal $zJournal2
+  execsql { 
+    SELECT count(*) FROM t1;
+    PRAGMA integrity_check
+  }
+} {0 ok}
+do_test crash8-3.10 {
+  set zJournal2 [string replace $zJournal 24 27 [binary format I 256]]
+  write_file test.db-journal $zJournal2
+  execsql { 
+    SELECT count(*) FROM t1;
+    PRAGMA integrity_check
+  }
+} {0 ok}
+
+do_test crash8-3.11 {
+  set fd [open test.db-journal w]
+  fconfigure $fd -translation binary 
+  puts -nonewline $fd $zJournal
+  close $fd
+  execsql { 
+    SELECT count(*) FROM t1;
+    PRAGMA integrity_check
+  }
+} {6 ok}
+}
+
+
+# If a connection running in persistent-journal mode is part of a 
+# multi-file transaction, it must ensure that the master-journal name
+# appended to the journal file contents during the commit is located
+# at the end of the physical journal file. If there was already a
+# large journal file allocated at the start of the transaction, this
+# may mean truncating the file so that the master journal name really
+# is at the physical end of the file.
+#
+# This block of tests test that SQLite correctly truncates such
+# journal files, and that the results behave correctly if a hot-journal
+# rollback occurs.
+#
+ifcapable pragma {
+  reset_db
+  forcedelete test2.db
+
+  do_test crash8-4.1 {
+    execsql {
+      PRAGMA journal_mode = persist;
+      CREATE TABLE ab(a, b);
+      INSERT INTO ab VALUES(0, 'abc');
+      INSERT INTO ab VALUES(1, NULL);
+      INSERT INTO ab VALUES(2, NULL);
+      INSERT INTO ab VALUES(3, NULL);
+      INSERT INTO ab VALUES(4, NULL);
+      INSERT INTO ab VALUES(5, NULL);
+      INSERT INTO ab VALUES(6, NULL);
+      UPDATE ab SET b = randstr(1000,1000);
+      ATTACH 'test2.db' AS aux;
+      PRAGMA aux.journal_mode = persist;
+      CREATE TABLE aux.ab(a, b);
+      INSERT INTO aux.ab SELECT * FROM main.ab;
+
+      UPDATE aux.ab SET b = randstr(1000,1000) WHERE a>=1;
+      UPDATE ab SET b = randstr(1000,1000) WHERE a>=1;
+    }
+  } {persist persist}
+  if {[atomic_batch_write test.db]==0} {
+    do_test crash8.4.1.1 {
+      list [file exists test.db-journal] [file exists test2.db-journal]
+    } {1 1}
+  }
+
+  do_test crash8-4.2 {
+    execsql {
+      BEGIN;
+        UPDATE aux.ab SET b = 'def' WHERE a = 0;
+        UPDATE main.ab SET b = 'def' WHERE a = 0;
+      COMMIT;
+    }
+  } {}
+
+  do_test crash8-4.3 {
+    execsql {
+      UPDATE aux.ab SET b = randstr(1000,1000) WHERE a>=1;
+      UPDATE ab SET b = randstr(1000,1000) WHERE a>=1;
+    }
+  } {}
+
+  set contents_main [db eval {SELECT b FROM main.ab WHERE a = 1}]
+  set contents_aux  [db eval {SELECT b FROM  aux.ab WHERE a = 1}]
+
+  do_test crash8-4.4 {
+    crashsql -file test2.db -delay 1 {
+      ATTACH 'test2.db' AS aux;
+      BEGIN;
+        UPDATE aux.ab SET b = 'ghi' WHERE a = 0;
+        UPDATE main.ab SET b = 'ghi' WHERE a = 0;
+      COMMIT;
+    }
+  } {1 {child process exited abnormally}}
+
+  do_test crash8-4.5 {
+    list [file exists test.db-journal] [file exists test2.db-journal]
+  } {1 1}
+
+  do_test crash8-4.6 {
+    execsql {
+      SELECT b FROM main.ab WHERE a = 0;
+      SELECT b FROM aux.ab WHERE a = 0;
+    }
+  } {def def}
+
+  do_test crash8-4.7 {
+    crashsql -file test2.db -delay 1 {
+      ATTACH 'test2.db' AS aux;
+      BEGIN;
+        UPDATE aux.ab SET b = 'jkl' WHERE a = 0;
+        UPDATE main.ab SET b = 'jkl' WHERE a = 0;
+      COMMIT;
+    }
+  } {1 {child process exited abnormally}}
+
+  do_test crash8-4.8 {
+    set fd [open test.db-journal]
+    fconfigure $fd -translation binary
+    seek $fd -16 end
+    binary scan [read $fd 4] I len
+
+    seek $fd [expr {-1 * ($len + 16)}] end
+    set zMasterJournal [read $fd $len]
+    close $fd
+
+    file exists $zMasterJournal
+  } {1}
+
+  do_test crash8-4.9 {
+    execsql { SELECT b FROM aux.ab WHERE a = 0 }
+  } {def}
+
+  do_test crash8-4.10 {
+    delete_file $zMasterJournal
+    execsql { SELECT b FROM main.ab WHERE a = 0 }
+  } {jkl}
+}
+
+#
+# Since the following tests (crash8-5.*) rely upon being able
+# to copy a file while open, they will not work on Windows.
+#
+# They also depend on being able to copy the journal file, which
+# is not created on F2FS file-systems that support atomic
+# write. So do not run these tests in that case either.
+#
+if {$::tcl_platform(platform)=="unix" && [atomic_batch_write test.db]==0 } {
+  for {set i 1} {$i < 10} {incr i} {
+    catch { db close }
+    forcedelete test.db test.db-journal
+    sqlite3 db test.db
+    do_test crash8-5.$i.1 {
+      execsql {
+        CREATE TABLE t1(x PRIMARY KEY);
+        INSERT INTO t1 VALUES(randomblob(900));
+        INSERT INTO t1 SELECT randomblob(900) FROM t1;
+        INSERT INTO t1 SELECT randomblob(900) FROM t1;
+        INSERT INTO t1 SELECT randomblob(900) FROM t1;
+        INSERT INTO t1 SELECT randomblob(900) FROM t1;
+        INSERT INTO t1 SELECT randomblob(900) FROM t1;
+        INSERT INTO t1 SELECT randomblob(900) FROM t1;          /* 64 rows */
+      }
+      crashsql -file test.db -delay [expr ($::i%2) + 1] {
+        PRAGMA cache_size = 10;
+        BEGIN;
+          UPDATE t1 SET x = randomblob(900);
+        ROLLBACK;
+        INSERT INTO t1 VALUES(randomblob(900));
+      }
+      execsql { PRAGMA integrity_check }
+    } {ok}
+  
+    catch { db close }
+    forcedelete test.db test.db-journal
+    sqlite3 db test.db
+    do_test crash8-5.$i.2 {
+      execsql {
+        PRAGMA cache_size = 10;
+        CREATE TABLE t1(x PRIMARY KEY);
+        INSERT INTO t1 VALUES(randomblob(900));
+        INSERT INTO t1 SELECT randomblob(900) FROM t1;
+        INSERT INTO t1 SELECT randomblob(900) FROM t1;
+        INSERT INTO t1 SELECT randomblob(900) FROM t1;
+        INSERT INTO t1 SELECT randomblob(900) FROM t1;
+        INSERT INTO t1 SELECT randomblob(900) FROM t1;
+        INSERT INTO t1 SELECT randomblob(900) FROM t1;          /* 64 rows */
+        BEGIN;
+          UPDATE t1 SET x = randomblob(900);
+      }
+      forcedelete testX.db testX.db-journal testX.db-wal
+      forcecopy test.db testX.db
+      forcecopy test.db-journal testX.db-journal
+      db close
+
+      crashsql -file test.db -delay [expr ($::i%2) + 1] {
+        SELECT * FROM sqlite_master;
+        INSERT INTO t1 VALUES(randomblob(900));
+      }
+
+      sqlite3 db2 testX.db
+      execsql { PRAGMA integrity_check } db2
+    } {ok}
+  }
+  catch {db2 close}
+}
+
+finish_test
diff --git a/test/crashM.test b/test/crashM.test
new file mode 100644
index 0000000000000000000000000000000000000000..de10c4589a5bf6eeb1b64234430b583ce49c5599
--- /dev/null
+++ b/test/crashM.test
@@ -0,0 +1,80 @@
+# 2015 Mar 13
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Crash tests for the multiplex module with 8.3 filenames enabled.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix crashM
+
+ifcapable !crashtest||!8_3_names {
+  finish_test
+  return
+}
+
+db close
+sqlite3_shutdown
+sqlite3_config_uri 1
+
+foreach f [glob -nocomplain test1.* test2.*] { forcedelete $f }
+sqlite3_multiplex_initialize "" 1
+sqlite3 db file:test1.db?8_3_names=1
+sqlite3_multiplex_control db main chunk_size [expr 64*1024]
+
+do_execsql_test 1.0 {
+  ATTACH 'file:test2.db?8_3_names=1' AS aux;
+
+  CREATE TABLE t1(x, y);
+  CREATE INDEX t1x ON t1(x);
+  CREATE INDEX t1y ON t1(y);
+
+  CREATE TABLE aux.t2(x, y);
+  CREATE INDEX aux.t2x ON t2(x);
+  CREATE INDEX aux.t2y ON t2(y);
+
+  WITH s(a) AS (
+    SELECT 1 UNION ALL SELECT a+1 FROM s WHERE a<1000
+  )
+  INSERT INTO t1 SELECT a, randomblob(500) FROM s;
+
+  WITH s(a) AS (
+    SELECT 1 UNION ALL SELECT a+1 FROM s WHERE a<1000
+  )
+  INSERT INTO t2 SELECT a, randomblob(500) FROM s;
+} {}
+
+for {set i 0} {$i < 20} {incr i} {
+  do_test 2.$i.1 {
+    crashsql -delay 1 -file test1.db -opendb {
+      sqlite3_shutdown
+      sqlite3_config_uri 1
+      sqlite3_multiplex_initialize crash 1
+      sqlite3 db file:test1.db?8_3_names=1
+      sqlite3_multiplex_control db main chunk_size [expr 64*1024]
+    } {
+      ATTACH 'file:test2.db?8_3_names=1' AS aux;
+      BEGIN;
+        UPDATE t1 SET y = randomblob(500) WHERE (x%10)==0;
+        UPDATE t2 SET y = randomblob(500) WHERE (x%10)==0;
+      COMMIT;
+    }
+  } {1 {child process exited abnormally}}
+
+  do_execsql_test 2.$i.2 {
+    PRAGMA main.integrity_check;
+    PRAGMA aux.integrity_check;
+  } {ok ok}
+}
+
+catch { db close }
+sqlite3_multiplex_shutdown
+finish_test
diff --git a/test/crashtest1.c b/test/crashtest1.c
new file mode 100644
index 0000000000000000000000000000000000000000..1f7035d18ea78d137272a6d76edbe1909549c414
--- /dev/null
+++ b/test/crashtest1.c
@@ -0,0 +1,96 @@
+/*
+** This program tests the ability of SQLite database to recover from a crash.
+** This program runs under Unix only, but the results are applicable to all
+** systems.
+**
+** The main process first constructs a test database, then starts creating
+** subprocesses that write to that database.  Each subprocess is killed off,
+** without a chance to clean up its database connection, after a random
+** delay.  This killing of the subprocesses simulates a crash or power
+** failure.  The next subprocess to open the database should rollback
+** whatever operation was in process at the time of the simulated crash.
+**
+** If any problems are encountered, an error is reported and the test stops.
+** If no problems are seen after a large number of tests, we assume that
+** the rollback mechanism is working.
+*/
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <signal.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sched.h>
+#include "sqlite.h"
+
+static void do_some_sql(int parent){
+  char *zErr;
+  int rc = SQLITE_OK;
+  sqlite *db;
+  int cnt = 0;
+  static char zBig[] = 
+    "-abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
+    "-abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
+
+  if( access("./test.db-journal",0)==0 ){
+    /*printf("pid %d: journal exists.  rollback will be required\n",getpid());*/    unlink("test.db-saved");
+    system("cp test.db test.db-saved");
+    unlink("test.db-journal-saved");
+    system("cp test.db-journal test.db-journal-saved");
+  }
+  db = sqlite_open("./test.db", 0, &zErr);
+  if( db==0 ){
+    printf("ERROR: %s\n", zErr);
+    if( strcmp(zErr,"database disk image is malformed")==0 ){
+      kill(parent, SIGKILL);
+    }
+    exit(1);
+  }
+  srand(getpid());
+  while( rc==SQLITE_OK ){
+    cnt++;
+    rc = sqlite_exec_printf(db, 
+       "INSERT INTO t1 VALUES(%d,'%d%s')", 0, 0, &zErr,
+       rand(), rand(), zBig);
+  }
+  if( rc!=SQLITE_OK ){
+    printf("ERROR #%d: %s\n", rc, zErr);
+    if( rc==SQLITE_CORRUPT ){
+      kill(parent, SIGKILL);
+    }
+  }
+  printf("pid %d: cnt=%d\n", getpid(), cnt);
+}
+
+
+int main(int argc, char **argv){
+  int i;
+  sqlite *db;
+  char *zErr;
+  int status;
+  int parent = getpid();
+
+  unlink("test.db");
+  unlink("test.db-journal");
+  db = sqlite_open("test.db", 0, &zErr);
+  if( db==0 ){
+    printf("Cannot initialize: %s\n", zErr);
+    return 1;
+  }
+  sqlite_exec(db, "CREATE TABLE t1(a,b)", 0, 0, 0);
+  sqlite_close(db);
+  for(i=0; i<10000; i++){
+    int pid = fork();
+    if( pid==0 ){
+      sched_yield();
+      do_some_sql(parent);
+      return 0;
+    }
+    printf("test %d, pid=%d\n", i, pid);
+    usleep(rand()%10000 + 1000);
+    kill(pid, SIGKILL);
+    waitpid(pid, &status, 0);
+  }
+  return 0;
+}
diff --git a/test/createtab.test b/test/createtab.test
new file mode 100644
index 0000000000000000000000000000000000000000..5773fbf5f62b1797c548e2ab948ff02fac338cae
--- /dev/null
+++ b/test/createtab.test
@@ -0,0 +1,154 @@
+# 2007 May 02
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing that it is OK to create new tables
+# and indices while creating existing tables and indices.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable autovacuum {
+  set upperBound 2
+} else {
+  set upperBound 0
+}
+
+# Run these tests for all possible values of autovacuum.
+#
+for {set av 0} {$av<=$upperBound} {incr av} {
+  db close
+  forcedelete test.db test.db-journal
+  sqlite3 db test.db
+
+  # Create a table that spans multiple pages.  It is important
+  # that part of the database be in pages beyond the root page.
+  #
+  do_test createtab-$av.1 {
+    execsql "PRAGMA auto_vacuum=$av"
+    execsql {
+      PRAGMA page_size=1024;
+      CREATE TABLE t1(x INTEGER PRIMARY KEY, y);
+      INSERT INTO t1 VALUES(1, hex(randomblob(200)));
+      INSERT INTO t1 VALUES(2, hex(randomblob(200)));
+      INSERT INTO t1 VALUES(3, hex(randomblob(200)));
+      INSERT INTO t1 VALUES(4, hex(randomblob(200)));
+      SELECT count(*) FROM t1;
+    }
+  } {4}
+
+  set isUtf16 0
+  ifcapable utf16 { 
+    set isUtf16 [expr {[execsql {PRAGMA encoding}] != "UTF-8"}]
+  }
+
+  do_test createtab-$av.2 {
+    file size test.db
+  } [expr {1024*(4+($av!=0)+(${isUtf16}*2))}]
+  
+  # Start reading the table
+  #
+  do_test createtab-$av.3 {
+    set STMT [sqlite3_prepare db {SELECT x FROM t1} -1 TAIL]
+    sqlite3_step $STMT
+  } {SQLITE_ROW}
+  do_test createtab-$av.4 {
+    sqlite3_column_int $STMT 0
+  } {1}
+  
+  # While still reading the table, create a new table.
+  #
+  do_test createtab-$av.5 {
+    execsql {
+      CREATE TABLE t2(a,b);
+      INSERT INTO t2 VALUES(1,2);
+      SELECT * FROM t2;
+    }
+  } {1 2}
+  
+  # Continue reading the original table.
+  #
+  do_test createtab-$av.6 {
+    sqlite3_column_int $STMT 0
+  } {1}
+  do_test createtab-$av.7 {
+    sqlite3_step $STMT
+  } {SQLITE_ROW}
+  do_test createtab-$av.8 {
+    sqlite3_column_int $STMT 0
+  } {2}
+  
+  # Do another cycle of creating a new database table while contining
+  # to read the original table.
+  #
+  do_test createtab-$av.11 {
+    execsql {
+      CREATE TABLE t3(a,b);
+      INSERT INTO t3 VALUES(4,5);
+      SELECT * FROM t3;
+    }
+  } {4 5}
+  do_test createtab-$av.12 {
+    sqlite3_column_int $STMT 0
+  } {2}
+  do_test createtab-$av.13 {
+    sqlite3_step $STMT
+  } {SQLITE_ROW}
+  do_test createtab-$av.14 {
+    sqlite3_column_int $STMT 0
+  } {3}
+  
+  # One more cycle.
+  #
+  do_test createtab-$av.21 {
+    execsql {
+      CREATE TABLE t4(a,b);
+      INSERT INTO t4 VALUES('abc','xyz');
+      SELECT * FROM t4;
+    }
+  } {abc xyz}
+  do_test createtab-$av.22 {
+    sqlite3_column_int $STMT 0
+  } {3}
+  do_test createtab-$av.23 {
+    sqlite3_step $STMT
+  } {SQLITE_ROW}
+  do_test createtab-$av.24 {
+    sqlite3_column_int $STMT 0
+  } {4}
+  
+  # Finish reading.  Do an integrity check on the database.
+  #
+  do_test createtab-$av.30 {
+    sqlite3_step $STMT
+  } {SQLITE_DONE}
+  do_test createtab-$av.31 {
+    sqlite3_finalize $STMT
+  } {SQLITE_OK}
+  do_test createtab-$av.32 {
+    execsql {
+      SELECT name FROM sqlite_master WHERE type='table' ORDER BY 1
+    }
+  } {t1 t2 t3 t4}
+  integrity_check createtab-$av.40
+
+}
+
+# 2019-03-31 Ensure that a proper error is returned for an index
+# with too many columns.
+#
+do_test createtab-3.1 {
+  db eval {DROP TABLE IF EXISTS t1;}
+  set sql "CREATE TABLE t1(x,UNIQUE(x[string repeat ,x 100000]))"
+  catchsql $sql
+} {1 {too many columns in index}}
+  
+finish_test
diff --git a/test/cse.test b/test/cse.test
new file mode 100644
index 0000000000000000000000000000000000000000..3912bc326cafb8c4a4049c0dadabdf70292715ef
--- /dev/null
+++ b/test/cse.test
@@ -0,0 +1,200 @@
+# 2008 April 1
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test cases designed to exercise and verify the logic for
+# factoring constant expressions out of loops and for
+# common subexpression eliminations.
+#
+# $Id: cse.test,v 1.6 2008/08/04 03:51:24 danielk1977 Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix cse
+
+do_test cse-1.1 {
+  execsql {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c, d, e, f);
+    INSERT INTO t1 VALUES(1,11,12,13,14,15);
+    INSERT INTO t1 VALUES(2,21,22,23,24,25);
+  }
+  execsql {
+    SELECT b, -b, ~b, NOT b, NOT NOT b, b-b, b+b, b*b, b/b, b FROM t1
+  }
+} {11 -11 -12 0 1 0 22 121 1 11 21 -21 -22 0 1 0 42 441 1 21}
+do_test cse-1.2 {
+  execsql {
+    SELECT b, b%b, b==b, b!=b, b<b, b<=b, b IS NULL, b NOT NULL, b FROM t1
+  }
+} {11 0 1 0 0 1 0 1 11 21 0 1 0 0 1 0 1 21}
+do_test cse-1.3 {
+  execsql {
+    SELECT b, abs(b), coalesce(b,-b,NOT b,c,NOT c), c, -c FROM t1;
+  }
+} {11 11 11 12 -12 21 21 21 22 -22}
+do_test cse-1.4 {
+  execsql {
+    SELECT CASE WHEN a==1 THEN b ELSE c END, b, c FROM t1
+  }
+} {11 11 12 22 21 22}
+do_test cse-1.5 {
+  execsql {
+    SELECT CASE a WHEN 1 THEN b WHEN 2 THEN c ELSE d END, b, c, d FROM t1
+  }
+} {11 11 12 13 22 21 22 23}
+do_test cse-1.6.1 {
+  execsql {
+    SELECT CASE b WHEN 11 THEN -b WHEN 21 THEN -c ELSE -d END, b, c, d FROM t1
+  }
+} {-11 11 12 13 -22 21 22 23}
+do_test cse-1.6.2 {
+  execsql {
+    SELECT CASE b+1 WHEN c THEN d WHEN e THEN f ELSE 999 END, b, c, d FROM t1
+  }
+} {13 11 12 13 23 21 22 23}
+do_test cse-1.6.3 {
+  execsql {
+    SELECT CASE WHEN b THEN d WHEN e THEN f ELSE 999 END, b, c, d FROM t1
+  }
+} {13 11 12 13 23 21 22 23}
+do_test cse-1.6.4 {
+  execsql {
+    SELECT b, c, d, CASE WHEN b THEN d WHEN e THEN f ELSE 999 END FROM t1
+  }
+} {11 12 13 13 21 22 23 23}
+do_test cse-1.6.5 {
+  execsql {
+    SELECT b, c, d, CASE WHEN 0 THEN d WHEN e THEN f ELSE 999 END FROM t1
+  }
+} {11 12 13 15 21 22 23 25}
+do_test cse-1.7 {
+  execsql {
+    SELECT a, -a, ~a, NOT a, NOT NOT a, a-a, a+a, a*a, a/a, a FROM t1
+  }
+} {1 -1 -2 0 1 0 2 1 1 1 2 -2 -3 0 1 0 4 4 1 2}
+do_test cse-1.8 {
+  execsql {
+    SELECT a, a%a, a==a, a!=a, a<a, a<=a, a IS NULL, a NOT NULL, a FROM t1
+  }
+} {1 0 1 0 0 1 0 1 1 2 0 1 0 0 1 0 1 2}
+do_test cse-1.9 {
+  execsql {
+    SELECT NOT b, ~b, NOT NOT b, b FROM t1
+  }
+} {0 -12 1 11 0 -22 1 21}
+do_test cse-1.10 {
+  execsql {
+    SELECT CAST(b AS integer), typeof(b), CAST(b AS text), typeof(b) FROM t1
+  }
+} {11 integer 11 integer 21 integer 21 integer}
+ifcapable compound {
+  do_test cse-1.11 { 
+    execsql {
+      SELECT *,* FROM t1 WHERE a=2
+      UNION ALL
+      SELECT *,* FROM t1 WHERE a=1
+    }
+  } {2 21 22 23 24 25 2 21 22 23 24 25 1 11 12 13 14 15 1 11 12 13 14 15}
+  do_test cse-1.12 { 
+    execsql {
+      SELECT coalesce(b,c,d,e), a, b, c, d, e FROM t1 WHERE a=2
+      UNION ALL
+      SELECT coalesce(e,d,c,b), e, d, c, b, a FROM t1 WHERE a=1
+    }
+  } {21 2 21 22 23 24 14 14 13 12 11 1}
+}
+do_test cse-1.13 {
+  execsql {
+     SELECT upper(b), typeof(b), b FROM t1
+  }
+} {11 integer 11 21 integer 21}
+do_test cse-1.14 {
+  execsql {
+     SELECT b, typeof(b), upper(b), typeof(b), b FROM t1
+  }
+} {11 integer 11 integer 11 21 integer 21 integer 21}
+
+# Overflow the column cache.  Create queries involving more and more
+# columns until the cache overflows.  Verify correct operation throughout.
+#
+do_test cse-2.1 {
+  execsql {
+    CREATE TABLE t2(a0,a1,a2,a3,a4,a5,a6,a7,a8,a9,
+                    a10,a11,a12,a13,a14,a15,a16,a17,a18,a19,
+                    a20,a21,a22,a23,a24,a25,a26,a27,a28,a29,
+                    a30,a31,a32,a33,a34,a35,a36,a37,a38,a39,
+                    a40,a41,a42,a43,a44,a45,a46,a47,a48,a49);
+    INSERT INTO t2 VALUES(0,1,2,3,4,5,6,7,8,9,
+                    10,11,12,13,14,15,16,17,18,19,
+                    20,21,22,23,24,25,26,27,28,29,
+                    30,31,32,33,34,35,36,37,38,39,
+                    40,41,42,43,44,45,46,47,48,49);
+    SELECT * FROM t2;
+  }
+} {0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49}
+
+for {set i 1} {$i<100} {incr i} {
+  set n [expr {int(rand()*44)+5}]
+  set colset {}
+  set answer {}
+  for {set j 0} {$j<$n} {incr j} {
+    set r [expr {$j+int(rand()*5)}]
+    if {$r>49} {set r [expr {99-$r}]}
+    lappend colset a$j a$r 
+    lappend answer $j $r
+  }
+  set sql "SELECT [join $colset ,] FROM t2"
+  do_test cse-2.2.$i {
+    # explain $::sql
+    execsql $::sql
+  } $answer
+}
+
+#-------------------------------------------------------------------------
+# Ticket fd1bda016d1a
+#
+reset_db
+do_execsql_test 3.0 {
+  CREATE TABLE t1(a TEXT, b);
+  INSERT INTO t1 VALUES('hello', 0);
+  INSERT INTO t1 VALUES('world', 0);
+
+  CREATE TABLE t2(x TEXT);
+  INSERT INTO t2 VALUES('hello');
+  INSERT INTO t2 VALUES('world');
+
+  CREATE TABLE t3(y);
+  INSERT INTO t3 VALUES(1000);
+} {}
+
+do_execsql_test 3.1 {
+  SELECT 1000 = y FROM t3
+} {1}
+
+do_execsql_test 3.2 {
+  SELECT 1000 IN (SELECT x FROM t2), 1000 = y FROM t3
+} {0 1}
+
+do_execsql_test 3.3 {
+  SELECT 0 IN (SELECT a), (SELECT a LIMIT 0) FROM t1 
+} {0 {} 0 {}}
+
+do_execsql_test 3.4 {
+  SELECT 0 IN (SELECT a) FROM t1 WHERE a = 'hello' OR (SELECT a LIMIT 0);
+} {0}
+
+do_execsql_test 3.5 {
+  CREATE TABLE v0(v1 VARCHAR0);
+  INSERT INTO v0 VALUES(2), (3);
+  SELECT 0 IN(SELECT v1) FROM v0 WHERE v1 = 2 OR(SELECT v1 LIMIT 0);
+} {0}
+
+finish_test
diff --git a/test/csv01.test b/test/csv01.test
new file mode 100644
index 0000000000000000000000000000000000000000..ecb1a968deec423b93e1073fe535016f91f86f85
--- /dev/null
+++ b/test/csv01.test
@@ -0,0 +1,279 @@
+# 2016-06-02
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+# Test cases for CSV virtual table.
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix csv01
+
+ifcapable !vtab||!cte { finish_test ; return }
+
+load_static_extension db csv
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE temp.t1 USING csv(
+    data=
+'1,2,3,4
+5,6,7,8
+9,10,11,12
+13,14,15,16
+',
+    columns=4
+  );
+  SELECT * FROM t1 WHERE c1=10;
+} {9 10 11 12}
+do_execsql_test 1.1 {
+  SELECT * FROM t1 WHERE c1='10';
+} {9 10 11 12}
+do_execsql_test 1.2 {
+  SELECT rowid FROM t1;
+} {1 2 3 4}
+
+do_execsql_test 1.3 {
+  DROP TABLE temp.t1;
+  CREATE VIRTUAL TABLE temp.t1 USING csv(
+    data=
+'a,b,"mix-bloom-eel","soft opinion"
+1,2,3,4
+5,6,7,8
+9,10,11,12
+13,14,15,16
+',
+    header=1
+  );
+  SELECT * FROM t1 WHERE "soft opinion"=12;
+} {9 10 11 12}
+do_execsql_test 1.4 {
+  SELECT name FROM pragma_table_xinfo('t1');
+} {a b mix-bloom-eel {soft opinion}}
+
+do_execsql_test 1.5 {
+  DROP TABLE temp.t1;
+  CREATE VIRTUAL TABLE temp.t1 USING csv(
+    data=
+'a,b,"mix-bloom-eel","soft opinion"
+1,2,3,4
+5,6,7,8
+9,10,11,12
+13,14,15,16
+',
+    header=false
+  );
+  SELECT * FROM t1 WHERE c1='b';
+} {a b mix-bloom-eel {soft opinion}}
+do_execsql_test 1.6 {
+  SELECT name FROM pragma_table_xinfo('t1');
+} {c0 c1 c2 c3}
+
+do_execsql_test 1.7 {
+  DROP TABLE temp.t1;
+  CREATE VIRTUAL TABLE temp.t1 USING csv(
+    data=
+'a,b,"mix-bloom-eel","soft opinion"
+1,2,3,4
+5,6,7,8
+9,10,11,12
+13,14,15,16
+',
+    header,
+    schema='CREATE TABLE x(x0,x1,x2,x3,x4)',
+    columns=5
+  );
+  SELECT * FROM t1 WHERE x1='6';
+} {5 6 7 8 {}}
+do_execsql_test 1.8 {
+  SELECT name FROM pragma_table_xinfo('t1');
+} {x0 x1 x2 x3 x4}
+
+
+do_execsql_test 2.0 {
+  DROP TABLE t1;
+  CREATE VIRTUAL TABLE temp.t2 USING csv(
+    data=
+'1,2,3,4
+5,6,7,8
+9,10,11,12
+13,14,15,16
+',
+    columns=4,
+    schema='CREATE TABLE t2(a INT, b TEXT, c REAL, d BLOB)'
+  );
+  SELECT * FROM t2 WHERE a=9;
+} {9 10 11 12}
+do_execsql_test 2.1 {
+  SELECT * FROM t2 WHERE b=10;
+} {9 10 11 12}
+do_execsql_test 2.2 {
+  SELECT * FROM t2 WHERE c=11;
+} {9 10 11 12}
+do_execsql_test 2.3 {
+  SELECT * FROM t2 WHERE d=12;
+} {}
+do_execsql_test 2.4 {
+  SELECT * FROM t2 WHERE d='12';
+} {9 10 11 12}
+do_execsql_test 2.5 {
+  SELECT * FROM t2 WHERE a='9';
+} {9 10 11 12}
+
+do_execsql_test 3.0 {
+  DROP TABLE t2;
+  CREATE VIRTUAL TABLE temp.t3 USING csv(
+    data=
+'1,2,3,4
+5,6,7,8
+9,10,11,12
+13,14,15,16
+',
+    columns=4,
+    schema=
+      'CREATE TABLE t3(a PRIMARY KEY,b TEXT,c TEXT,d TEXT) WITHOUT ROWID',
+    testflags=1
+  );
+  SELECT a FROM t3 WHERE b=6 OR c=7 OR d=12 ORDER BY +a;
+} {5 9}
+do_execsql_test 3.1 {
+  SELECT a FROM t3 WHERE +b=6 OR c=7 OR d=12 ORDER BY +a;
+} {5 9}
+
+# The rowid column is not visible on a WITHOUT ROWID virtual table
+do_catchsql_test 3.2 {
+  SELECT rowid, a FROM t3;
+} {1 {no such column: rowid}}
+
+# Multi-column WITHOUT ROWID virtual tables may not be writable.
+do_catchsql_test 4.0 {
+  DROP TABLE t3;
+  CREATE VIRTUAL TABLE temp.t4 USING csv_wr(
+    data=
+'1,2,3,4
+5,6,7,8
+9,10,11,12
+13,14,15,16',
+    columns=4,
+    schema=
+      'CREATE TABLE t3(a,b,c,d,PRIMARY KEY(a,b)) WITHOUT ROWID',
+    testflags=1
+  );
+} {1 {bad schema: 'CREATE TABLE t3(a,b,c,d,PRIMARY KEY(a,b)) WITHOUT ROWID' - not an error}}
+
+# WITHOUT ROWID tables with a single-column PRIMARY KEY may be writable.
+do_catchsql_test 4.1 {
+  DROP TABLE IF EXISTS t4;
+  CREATE VIRTUAL TABLE temp.t4 USING csv_wr(
+    data=
+'1,2,3,4
+5,6,7,8
+9,10,11,12
+13,14,15,16',
+    columns=4,
+    schema=
+      'CREATE TABLE t3(a,b,c,d,PRIMARY KEY(b)) WITHOUT ROWID',
+    testflags=1
+  );
+} {0 {}}
+
+do_catchsql_test 4.2 {
+  DROP TABLE IF EXISTS t5;
+  CREATE VIRTUAL TABLE temp.t5 USING csv_wr(
+      data=
+      '1,2,3,4
+      5,6,7,8
+      9,10,11,12
+      13,14,15,16',
+      columns=4,
+      schema=
+      'CREATE TABLE t3(a,b,c,d) WITHOUT ROWID',
+      testflags=1
+      );
+} {1 {bad schema: 'CREATE TABLE t3(a,b,c,d) WITHOUT ROWID' - PRIMARY KEY missing on table t3}}
+
+# 2018-04-24
+# Memory leak reported on the sqlite-users mailing list by Ralf Junker.
+#
+do_catchsql_test 4.3 {
+  CREATE VIRTUAL TABLE IF NOT EXISTS temp.t1
+  USING csv(filename='FileDoesNotExist.csv');
+} {1 {cannot open 'FileDoesNotExist.csv' for reading}}
+
+# 2018-06-02
+# Problem with single-column CSV support reported on the mailing list
+# by Trent W. Buck.
+#
+do_execsql_test 4.4 {
+  CREATE VIRTUAL TABLE temp.trent USING csv(data='1');
+  SELECT * FROM trent;
+} {1}
+
+# 2018-12-26
+# Bug report on the mailing list
+#
+forcedelete csv01.csv
+set fd [open csv01.csv wb]
+puts $fd "a,b,c,d\r\n1,2,3,4\r\none,two,three,four\r\n5,6,7,8"
+close $fd
+do_execsql_test 5.1 {
+  CREATE VIRTUAL TABLE t5_1 USING csv(filename='csv01.csv');
+  SELECT name FROM temp.pragma_table_info('t5_1');
+} {c0 c1 c2 c3}
+do_execsql_test 5.2 {
+  SELECT *, '|' FROM t5_1;
+} {a b c d | 1 2 3 4 | one two three four | 5 6 7 8 |}
+do_execsql_test 5.3 {
+  DROP TABLE t5_1;
+  CREATE VIRTUAL TABLE t5_1 USING csv(filename='csv01.csv', header);
+  SELECT name FROM temp.pragma_table_info('t5_1');
+} {a b c d}
+do_execsql_test 5.4 {
+  SELECT *, '|' FROM t5_1;
+} {1 2 3 4 | one two three four | 5 6 7 8 |}
+
+#-------------------------------------------------------------------------
+
+proc randomtext {n} {
+  string range [db one {SELECT hex(randomblob($n))}] 1 $n
+}
+
+for {set ii 0} {$ii < 200} {incr ii} {
+  reset_db
+  load_static_extension db csv
+  set fd [open csv.data w]
+  puts $fd "a,b"
+  puts $fd "[randomtext $ii],abcd"
+  close $fd
+  do_execsql_test 6.$ii.1 {
+    CREATE VIRTUAL TABLE abc USING csv(filename='csv.data', header=true);
+  }
+  do_execsql_test 6.$ii.2 {
+    SELECT count(*) FROM abc
+  } 1
+}
+
+for {set ii 0} {$ii < 20} {incr ii} {
+  reset_db
+  load_static_extension db csv
+  set T [randomtext $ii]
+  set fd [open csv.data w]
+  puts $fd "a,b"
+  puts -nonewline $fd "abcd,$T"
+  close $fd
+  do_execsql_test 7.$ii.1 {
+    CREATE VIRTUAL TABLE abc USING csv(filename='csv.data', header=true);
+  }
+  breakpoint
+  do_execsql_test 7.$ii.2 {
+    SELECT * FROM abc
+  } [list abcd $T]
+}
+
+
+finish_test
diff --git a/test/ctime.test b/test/ctime.test
new file mode 100644
index 0000000000000000000000000000000000000000..26b2fa2ee2ded74a5830d656df29720dcb6ffe1b
--- /dev/null
+++ b/test/ctime.test
@@ -0,0 +1,259 @@
+# 2009 February 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests for the compile time diagnostic 
+# functions.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Test organization:
+#
+# ctime-1.*: Test pragma support.
+# ctime-2.*: Test function support.
+#
+
+ifcapable !pragma||!compileoption_diags {
+  finish_test
+  return
+}
+
+#####################
+# ctime-1.*: Test pragma support.
+
+do_test ctime-1.1.1 {
+  catchsql {
+    PRAGMA compile_options();
+  }
+} {1 {near ")": syntax error}}
+do_test ctime-1.1.2 {
+  catchsql {
+    PRAGMA compile_options(NULL);
+  }
+} {1 {near "NULL": syntax error}}
+do_test ctime-1.1.3 {
+  catchsql {
+    PRAGMA compile_options *;
+  }
+} {1 {near "*": syntax error}}
+
+do_test ctime-1.2.1 {
+  set ans [ catchsql {
+    PRAGMA compile_options;
+  } ]
+  list [ lindex $ans 0 ]
+} {0}
+# the results should be in sorted order already
+do_test ctime-1.2.2 {
+  set ans [ catchsql {
+    PRAGMA compile_options;
+  } ]
+  list [ lindex $ans 0 ] [ expr { [lsort [lindex $ans 1]]==[lindex $ans 1] } ]
+} {0 1}
+
+# Check the THREADSAFE option for SQLITE_THREADSAFE=2 builds (there are
+# a couple of these configurations in releasetest.tcl).
+#
+ifcapable threadsafe2 {
+  foreach {tn opt res} {
+    1 SQLITE_THREADSAFE     1
+    2 THREADSAFE            1
+    3 THREADSAFE=0          0
+    4 THREADSAFE=1          0
+    5 THREADSAFE=2          1
+    6 THREADSAFE=           0
+  } {
+    do_execsql_test ctime-1.3.$tn {
+      SELECT sqlite_compileoption_used($opt)
+    } $res
+  }
+}
+
+# SQLITE_THREADSAFE should pretty much always be defined
+# one way or the other, and it must have a value of 0 or 1.
+sqlite3_db_config db SQLITE_DBCONFIG_DQS_DML 1
+do_test ctime-1.4.1 {
+  catchsql {
+    SELECT sqlite_compileoption_used('SQLITE_THREADSAFE');
+  }
+} {0 1}
+do_test ctime-1.4.2 {
+  catchsql {
+    SELECT sqlite_compileoption_used('THREADSAFE');
+  }
+} {0 1}
+do_test ctime-1.4.3 {
+  catchsql {
+    SELECT sqlite_compileoption_used("THREADSAFE");
+  }
+} {0 1}
+
+do_test ctime-1.5 {
+  set ans1 [ catchsql {
+    SELECT sqlite_compileoption_used('THREADSAFE=0');
+  } ]
+  set ans2 [ catchsql {
+    SELECT sqlite_compileoption_used('THREADSAFE=1');
+  } ]
+  set ans3 [ catchsql {
+    SELECT sqlite_compileoption_used('THREADSAFE=2');
+  } ]
+  lsort [ list $ans1 $ans2 $ans3 ]
+} {{0 0} {0 0} {0 1}}
+
+do_test ctime-1.6 {
+  execsql {
+    SELECT sqlite_compileoption_used('THREADSAFE=');
+  }
+} {0}
+
+do_test ctime-1.7.1 {
+  execsql {
+    SELECT sqlite_compileoption_used('SQLITE_OMIT_COMPILEOPTION_DIAGS');
+  }
+} {0}
+do_test ctime-1.7.2 {
+  execsql {
+    SELECT sqlite_compileoption_used('OMIT_COMPILEOPTION_DIAGS');
+  }
+} {0}
+
+#####################
+# ctime-2.*: Test function support.
+
+do_test ctime-2.1.1 {
+  catchsql {
+    SELECT sqlite_compileoption_used();
+  }
+} {1 {wrong number of arguments to function sqlite_compileoption_used()}}
+do_test ctime-2.1.2 {
+  catchsql {
+    SELECT sqlite_compileoption_used(NULL);
+  }
+} {0 {{}}}
+do_test ctime-2.1.3 {
+  catchsql {
+    SELECT sqlite_compileoption_used("");
+  }
+} {0 0}
+do_test ctime-2.1.4 {
+  catchsql {
+    SELECT sqlite_compileoption_used('');
+  }
+} {0 0}
+do_test ctime-2.1.5 {
+  catchsql {
+    SELECT sqlite_compileoption_used(foo);
+  }
+} {1 {no such column: foo}}
+do_test ctime-2.1.6 {
+  catchsql {
+    SELECT sqlite_compileoption_used('THREADSAFE', 0);
+  }
+} {1 {wrong number of arguments to function sqlite_compileoption_used()}}
+do_test ctime-2.1.7 {
+  catchsql {
+    SELECT sqlite_compileoption_used(0);
+  }
+} {0 0}
+do_test ctime-2.1.8 {
+  catchsql {
+    SELECT sqlite_compileoption_used('0');
+  }
+} {0 0}
+do_test ctime-2.1.9 {
+  catchsql {
+    SELECT sqlite_compileoption_used(1.0);
+  }
+} {0 0}
+
+do_test ctime-2.2.1 {
+  catchsql {
+    SELECT sqlite_compileoption_get();
+  }
+} {1 {wrong number of arguments to function sqlite_compileoption_get()}}
+do_test ctime-2.2.2 {
+  catchsql {
+    SELECT sqlite_compileoption_get(0, 0);
+  }
+} {1 {wrong number of arguments to function sqlite_compileoption_get()}}
+
+# This assumes there is at least 1 compile time option
+# (see SQLITE_THREADSAFE above).
+do_test ctime-2.3 {
+  catchsql {
+    SELECT sqlite_compileoption_used(sqlite_compileoption_get(0));
+  }
+} {0 1}
+
+# This assumes there is at least 1 compile time option
+# (see SQLITE_THREADSAFE above).
+do_test ctime-2.4 {
+  set ans [ catchsql {
+    SELECT sqlite_compileoption_get(0);
+  } ]
+  list [lindex $ans 0]
+} {0}
+
+# Get the list of defines using the pragma,
+# then try querying each one with the functions.
+set ans [ catchsql {
+  PRAGMA compile_options;
+} ]
+set opts [ lindex $ans 1 ]
+set tc 1
+foreach opt $opts {
+  do_test ctime-2.5.$tc {
+    set N [ expr {$tc-1} ]
+    set ans1 [catch {db one {
+      SELECT sqlite_compileoption_get($N);
+    }} msg]
+    lappend ans1 $msg
+    set ans2 [ catchsql {
+      SELECT sqlite_compileoption_used($opt);
+    } ]
+    list [ lindex $ans1 0 ] [ expr { [lindex $ans1 1]==$opt } ] \
+         [ expr { $ans2 } ]
+  } {0 1 {0 1}}
+  incr tc 1
+}
+# test 1 past array bounds
+do_test ctime-2.5.$tc {
+  set N [ expr {$tc-1} ]
+  set ans [ catchsql {
+    SELECT sqlite_compileoption_get($N);
+  } ]
+} {0 {{}}}
+incr tc 1
+# test 1 before array bounds (N=-1)
+do_test ctime-2.5.$tc {
+  set N -1
+  set ans [ catchsql {
+    SELECT sqlite_compileoption_get($N);
+  } ]
+} {0 {{}}}
+
+#--------------------------------------------------------------------------
+# Test that SQLITE_DIRECT_OVERFLOW_READ is reflected in the output of
+# "PRAGMA compile_options".
+#
+ifcapable direct_read {
+  set res 1
+} else {
+  set res 0
+}
+do_test ctime-3.0.1 {
+  expr [lsearch [db eval {PRAGMA compile_options}] DIRECT_OVERFLOW_READ]>=0
+} $res
+
+finish_test
diff --git a/test/cursorhint.test b/test/cursorhint.test
new file mode 100644
index 0000000000000000000000000000000000000000..d1bd4e8e7811133606fc9ce7eac0cbc46313edd5
--- /dev/null
+++ b/test/cursorhint.test
@@ -0,0 +1,214 @@
+# 2014 July 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix cursorhint
+
+ifcapable !cursorhints {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a,b,c,d);
+  CREATE TABLE t2(x,y,z);
+  INSERT INTO t1(a,b) VALUES(10, 15);
+  INSERT INTO t1(a,b) VALUES(20, 25);
+  INSERT INTO t2(x,y) VALUES('ten', 'fifteen');
+  INSERT INTO t2(x,y) VALUES('twenty', 'twentyfive');
+  CREATE TABLE t3(id TEXT PRIMARY KEY, a, b, c, d) WITHOUT ROWID;
+  INSERT INTO t3(id,a,b,c,d) SELECT rowid, a, b, c, d FROM t1;
+  PRAGMA automatic_index = 0;
+}
+
+# Run EXPLAIN on $sql.  Return a list of P4 values for all $opcode
+# opcodes.
+#
+proc p4_of_opcode {db opcode sql} {
+  set res {}
+  $db eval "EXPLAIN $sql" x {
+    if {$x(opcode)==$opcode} {lappend res $x(p4)}
+  }
+  return $res
+}
+
+# Run EXPLAIN on $sql.  Return a list of P5 values for all $opcode
+# opcodes that contain regexp $comment in their comment
+#
+proc p5_of_opcode {db opcode sql} {
+  set res {}
+  $db eval "EXPLAIN $sql" x {
+    if {$x(opcode)==$opcode} {
+      lappend res $x(p5)
+    }
+  }
+  return $res
+}
+
+# Verify that when t1 is in the outer loop and t2 is in the inner loop,
+# no cursor hints occur for t1 (since it is a full table scan) but that
+# each t2 access has a cursor hint based on the current t1.a value.
+#
+do_test 1.1 {
+  p4_of_opcode db CursorHint {
+     SELECT * FROM t1 CROSS JOIN t2 WHERE a=x
+  }
+} {{EQ(r[1],c0)}}
+do_test 1.2 {
+  p5_of_opcode db OpenRead {
+     SELECT * FROM t1 CROSS JOIN t2 WHERE a=x
+  }
+} {0 0}
+
+# Do the same test the other way around.
+#
+do_test 2.1 {
+  p4_of_opcode db CursorHint {
+     SELECT * FROM t2 CROSS JOIN t1 WHERE a=x
+  }
+} {{EQ(c0,r[1])}}
+do_test 2.2 {
+  p5_of_opcode db OpenRead {
+     SELECT * FROM t2 CROSS JOIN t1 WHERE a=x
+  }
+} {0 0}
+
+# Various expressions captured by CursorHint
+#
+do_test 3.1 {
+  p4_of_opcode db CursorHint {
+    SELECT * FROM t1 WHERE a=15 AND c=22 AND rowid!=98
+  }
+} {AND(AND(EQ(c0,15),EQ(c2,22)),NE(rowid,98))}
+do_test 3.2 {
+  p4_of_opcode db CursorHint {
+    SELECT * FROM t3 WHERE a<15 AND b>22 AND id!=98
+  }
+} {AND(AND(LT(c1,15),GT(c2,22)),NE(c0,98))}
+
+# Indexed queries
+#
+do_test 4.1asc {
+  db eval {
+    CREATE INDEX t1bc ON t1(b,c);
+    CREATE INDEX t2yz ON t2(y,z);
+  }
+  p4_of_opcode db CursorHint {
+    SELECT * FROM t1 WHERE b>11 ORDER BY b ASC;
+  }
+} {}
+do_test 4.1desc {
+  p4_of_opcode db CursorHint {
+    SELECT * FROM t1 WHERE b>11 ORDER BY b DESC;
+  }
+} {GT(c0,11)}
+do_test 4.2 {
+  p5_of_opcode db OpenRead {
+    SELECT * FROM t1 WHERE b>11;
+  }
+} {2 0}
+do_test 4.3asc {
+  p4_of_opcode db CursorHint {
+    SELECT c FROM t1 WHERE b<11 ORDER BY b ASC;
+  }
+} {LT(c0,11)}
+do_test 4.3desc {
+  p4_of_opcode db CursorHint {
+    SELECT c FROM t1 WHERE b<11 ORDER BY b DESC;
+  }
+} {}
+do_test 4.4 {
+  p5_of_opcode db OpenRead {
+    SELECT c FROM t1 WHERE b<11;
+  }
+} {0}
+
+do_test 4.5asc {
+  p4_of_opcode db CursorHint {
+    SELECT c FROM t1 WHERE b>=10 AND b<=20 ORDER BY b ASC;
+  }
+} {LE(c0,20)}
+do_test 4.5desc {
+  p4_of_opcode db CursorHint {
+    SELECT c FROM t1 WHERE b>=10 AND b<=20 ORDER BY b DESC;
+  }
+} {GE(c0,10)}
+
+# If there are any equality terms used in the constraint, then all terms
+# should be hinted.
+#
+do_test 4.6asc {
+  p4_of_opcode db CursorHint {
+    SELECT rowid FROM t1 WHERE b=22 AND c>=10 AND c<=20 ORDER BY b,c ASC;
+  }
+} {AND(AND(EQ(c0,22),GE(c1,10)),LE(c1,20))}
+do_test 4.6desc {
+  p4_of_opcode db CursorHint {
+    SELECT rowid FROM t1 WHERE b=22 AND c>=10 AND c<=20 ORDER BY b,c DESC;
+  }
+} {AND(AND(EQ(c0,22),GE(c1,10)),LE(c1,20))}
+
+# 2023-03-24 https://sqlite.org/forum/forumpost/591006b1cc
+#
+reset_db
+do_execsql_test 5.0 {
+  CREATE TABLE t1(x TEXT PRIMARY KEY) WITHOUT ROWID;
+  CREATE VIEW t2 AS SELECT 0 FROM t1 WHERE x>='a' OR x='1';
+  SELECT * FROM t2 RIGHT JOIN t1 ON true;
+}
+# Additional test case from https://sqlite.org/forum/forumpost/d34ad68c36?t=c
+# which is a different way to acces the same problem.
+#
+do_execsql_test 5.1 {
+  CREATE TABLE  v1 (c1, PRIMARY KEY( c1 )) WITHOUT ROWID;
+  CREATE VIEW   v2 AS SELECT 0 FROM v1 WHERE c1 IS '' OR c1 > '';
+  CREATE VIEW   v3 AS SELECT 0 FROM v2 JOIN (v2 RIGHT JOIN v1);
+  CREATE VIEW   v4 AS SELECT 0 FROM v3, v3;
+  SELECT * FROM v3 JOIN v3 AS a0, v4 AS a1, v4 AS a2, v3 AS a3,
+                v3 AS a4, v4 AS a5
+    ORDER BY 1;
+}
+
+# 2023-04-10 https://sqlite.org/forum/forumpost/0b53708c95
+#
+do_execsql_test 6.0 {
+  CREATE TABLE t6(a TEXT UNIQUE, b TEXT);
+  INSERT INTO t6(a,b) VALUES('uvw','xyz'),('abc','def');
+  WITH v1(a) AS (SELECT a COLLATE NOCASE FROM t6)
+  SELECT v1.a, count(*) FROM t6 LEFT JOIN v1 ON true
+   GROUP BY 1
+  HAVING (SELECT true FROM t6 AS aa LEFT JOIN t6 AS bb ON length(v1.a)>5);
+} {abc 2 uvw 2}
+
+
+# 2023-05-04 https://sqlite.org/forum/forumpost/29a47cf6d1
+#
+# codeCursorHint() should not walk expressions that have been optimized
+# out and converted to TRUE or FALSE.  This only comes up when compiling
+# with SQLITE_ENABLE_CURSOR_HINTS
+#
+reset_db
+do_execsql_test 7.1 {
+  CREATE TABLE t1(a INT PRIMARY KEY) WITHOUT ROWID;
+  CREATE TABLE t2(b INT PRIMARY KEY) WITHOUT ROWID;
+  CREATE TABLE t3(c INT PRIMARY KEY) WITHOUT ROWID;
+  INSERT INTO t1(a) VALUES(1),(2);
+  INSERT INTO t2(b) VALUES(4),(8);
+  INSERT INTO t3(c) VALUES(16),(32);
+  CREATE VIEW v4(d) AS SELECT c FROM t3;
+  SELECT * FROM t1 RIGHT JOIN t2 ON true JOIN v4 ON (d IS NULL);
+} {}
+
+
+finish_test
diff --git a/test/cursorhint2.test b/test/cursorhint2.test
new file mode 100644
index 0000000000000000000000000000000000000000..a78d151b98f70b3606c0887d7b7d3241e97e014c
--- /dev/null
+++ b/test/cursorhint2.test
@@ -0,0 +1,204 @@
+# 2016 June 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. The
+# focus is on testing that cursor-hints are correct for queries
+# involving LEFT JOIN.
+#
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix cursorhint2
+
+ifcapable !cursorhints {
+  finish_test
+  return
+}
+
+proc extract_hints {sql} {
+
+  db eval "SELECT tbl_name, rootpage FROM sqlite_master where rootpage" {
+    set lookup($rootpage) $tbl_name
+  }
+
+  set ret [list]
+  db eval "EXPLAIN $sql" a {
+    switch -- $a(opcode) {
+      OpenRead {
+        set csr($a(p1)) $lookup($a(p2))
+      }
+      CursorHint { 
+        lappend ret $csr($a(p1)) $a(p4) 
+      }
+    }
+  }
+
+  set ret
+}
+
+proc do_extract_hints_test {tn sql ret} {
+  uplevel [list do_test $tn [list extract_hints $sql] [list {*}$ret]]
+}
+
+do_execsql_test 1.0 {
+  PRAGMA automatic_index = 0;
+  CREATE TABLE t1(a, b);
+  CREATE TABLE t2(c, d);
+  CREATE TABLE t3(e, f);
+}
+
+do_extract_hints_test 1.1 {
+  SELECT * FROM t1 WHERE a=1;
+} {
+  t1 EQ(c0,1)
+}
+
+do_extract_hints_test 1.2 {
+  SELECT * FROM t1 CROSS JOIN t2 ON (a=c) WHERE d IS NULL;
+} {
+  t2 {AND(ISNULL(c1),EQ(r[1],c0))}
+}
+
+do_extract_hints_test 1.3 {
+  SELECT * FROM t1 LEFT JOIN t2 ON (a=c) WHERE d IS NULL;
+} {
+  t2 {EQ(r[2],c0)}
+}
+
+do_extract_hints_test 1.4 {
+  SELECT * FROM t1 LEFT JOIN t2 ON (a=c AND a=10) WHERE d IS NULL;
+} {
+  t2 {AND(EQ(r[2],c0),EQ(r[3],10))}
+}
+
+do_extract_hints_test 1.5 {
+  SELECT * FROM t1 CROSS JOIN t2 ON (a=c AND a=10) WHERE d IS NULL;
+} {
+  t1 EQ(c0,10) t2 {AND(ISNULL(c1),EQ(r[3],c0))}
+}
+
+do_extract_hints_test 1.6 {
+  SELECT * FROM t1 LEFT JOIN t2 ON (a=c) LEFT JOIN t3 ON (d=f);
+} {
+  t2 {EQ(r[2],c0)} t3 {EQ(r[6],c1)}
+}
+
+if 0 {
+  do_extract_hints_test 1.7 {
+    SELECT * FROM t1 LEFT JOIN t2 ON (a=c AND d=e) LEFT JOIN t3 ON (d=f);
+  } {
+    t2 {EQ(r[2],c0)} t3 {AND(EQ(r[6],c0),EQ(r[7],c1))}
+  }
+}
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test 2.0 {
+  CREATE TABLE x1(x, y);
+  CREATE TABLE x2(a, b);
+}
+
+do_extract_hints_test 2.1 {
+  SELECT * FROM x1 LEFT JOIN x2 ON (a=x) WHERE b IS NULL;
+} {
+  x2 {EQ(c0,r[2])}
+}
+
+do_extract_hints_test 2.2 {
+  SELECT * FROM x1 LEFT JOIN x2 ON (a=x) WHERE b IS +NULL;
+} {
+  x2 {EQ(c0,r[2])}
+}
+
+do_extract_hints_test 2.3 {
+  SELECT * FROM x1 LEFT JOIN x2 ON (a=x) WHERE 1 = (b IS NULL)
+} {
+  x2 {EQ(c0,r[2])}
+}
+
+do_extract_hints_test 2.4 {
+  SELECT * FROM x1 LEFT JOIN x2 ON (a=x) WHERE 1 = coalesce(b, 1)
+} {
+  x2 {EQ(c0,r[2])}
+}
+
+do_extract_hints_test 2.5 {
+  SELECT * FROM x1 LEFT JOIN x2 ON (a=x) WHERE 1 = coalesce(b, 1)
+} {
+  x2 {EQ(c0,r[2])}
+}
+
+if {0} {
+  # These tests no longer work due to the LEFT-JOIN strength reduction
+  # optimization
+  do_extract_hints_test 2.6 {
+    SELECT * FROM x1 CROSS JOIN x2 ON (a=x) WHERE 0 = (b IS NOT NULL)
+  } {
+    x2 {EQ(c0,r[2])}
+  }
+  
+  do_extract_hints_test 2.7 {
+    SELECT * FROM x1 LEFT JOIN x2 ON (a=x) WHERE 0 = (b IS NOT +NULL)
+  } {
+    x2 {EQ(c0,r[2])}
+  }
+  
+  do_extract_hints_test 2.8 {
+    SELECT * FROM x1 LEFT JOIN x2 ON (a=x) WHERE b IS NOT +NULL
+  } {
+    x2 {EQ(c0,r[2])}
+  }
+  
+  do_extract_hints_test 2.9 {
+    SELECT * FROM x1 LEFT JOIN x2 ON (a=x)
+      WHERE CASE b WHEN 0 THEN 0 ELSE 1 END;
+  } {
+    x2 {EQ(c0,r[2])}
+  }
+  
+  do_extract_hints_test 2.10 {
+    SELECT * FROM x1 LEFT JOIN x2 ON (a=x) WHERE x2.b = 32+32
+  } {
+    x2 {AND(EQ(c1,ADD(32,32)),EQ(c0,r[2]))}
+  }
+  
+  ifcapable !icu {
+    # This test only works using the built-in LIKE, not the ICU LIKE extension.
+    do_extract_hints_test 2.11 {
+      SELECT * FROM x1 LEFT JOIN x2 ON (a=x) WHERE x2.b LIKE 'abc%'
+    } {
+      x2 {AND(expr,EQ(c0,r[2]))}
+    }
+  }
+}
+  
+do_extract_hints_test 2.12 {
+  SELECT * FROM x1 LEFT JOIN x2 ON (a=x) WHERE coalesce(x2.b, 1)
+} {
+  x2 {EQ(c0,r[2])}
+}
+
+reset_db
+do_execsql_test 3.0 {
+  CREATE TABLE t1 (i1 TEXT);    
+  CREATE TABLE t2 (i2 TEXT UNIQUE);    
+  INSERT INTO t1 VALUES('0');
+  INSERT INTO t2 VALUES('0');
+}
+
+do_extract_hints_test 3.1 {
+  SELECT * FROM t1 CROSS JOIN t2 WHERE (t1.i1 = t2.i2) AND t2.i2 = 1;
+} {
+  t1 {EQ(c0,r[1])} t2 EQ(c0,1)
+}
+
+
+finish_test
diff --git a/test/dataversion1.test b/test/dataversion1.test
new file mode 100644
index 0000000000000000000000000000000000000000..55f7aada0c6f7026612cb3f62eab9111155ed375
--- /dev/null
+++ b/test/dataversion1.test
@@ -0,0 +1,87 @@
+# 2018-07-18
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test case for SQLITE_FCNTL_DATA_VERSION
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Construct a database and get its initial data version
+sqlite3 db test.db
+do_test dataversion1-100 {
+  db eval {
+    CREATE TABLE t1(x);
+    INSERT INTO t1(x) VALUES(99);
+    SELECT * FROM t1;
+  }
+} {99}
+set dv1 [file_control_data_version db main]
+
+# The data version does not change by ATTACH or by changes to
+# other schemas within the same connection.
+#
+do_test dataversion1-101 {
+  db eval {
+    ATTACH ':memory:' AS aux1;
+    CREATE TABLE aux1.t2(y);
+    CREATE TEMP TABLE t3(z);
+  }
+  file_control_data_version db main
+} $dv1
+
+# The data version does change when SQL modifies the table
+do_test dataversion1-110 {
+  db eval {
+    UPDATE t1 SET x=x+1;
+  }
+  set dv2 [file_control_data_version db]
+  expr {$::dv1==$dv2}
+} {0}
+
+# But the data version is constant if there are changes to other
+# schemas
+set dv1 [file_control_data_version db main]
+do_test dataversion1-120 {
+  db eval {
+    UPDATE t2 SET y=y+1;
+  }
+  file_control_data_version db
+} $dv1
+
+# Changes to the database via another connection are not detected
+# until there is a read transaction.
+#
+sqlite3 db2 test.db
+do_test dataversion1-130 {
+  db2 eval {
+    SELECT * FROM t1
+  }
+} {100}
+do_test dataversion1-131 {
+  file_control_data_version db
+} $dv1
+do_test dataversion1-132 {
+  db2 eval {
+    UPDATE t1 SET x=x+1;
+  }
+  set dv2 [file_control_data_version db]
+  expr {$::dv1==$dv2}
+} {1}
+do_test dataversion1-133 {
+  db eval {SELECT * FROM t1}
+  set dv2 [file_control_data_version db]
+  expr {$::dv1==$dv2}
+} {0}
+
+
+   
+finish_test
diff --git a/test/date.test b/test/date.test
new file mode 100644
index 0000000000000000000000000000000000000000..d22b652b474a3f070ba0a24f054c1611cf343567
--- /dev/null
+++ b/test/date.test
@@ -0,0 +1,655 @@
+# 2003 October 31
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing date and time functions.
+#
+# $Id: date.test,v 1.34 2009/04/16 12:58:03 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Do not use a codec for tests in this file, as the database file is
+# manipulated directly using tcl scripts (using the [hexio_write] command).
+#
+do_not_use_codec
+
+# Skip this whole file if date and time functions are omitted
+# at compile-time
+#
+ifcapable {!datetime} {
+  finish_test
+  return
+}
+
+proc datetest {tnum expr result} {
+  do_test date-$tnum [subst {
+    execsql "SELECT coalesce($expr,'NULL')"
+  }] [list $result]
+}
+set tcl_precision 15
+datetest 1.1 julianday('2000-01-01') 2451544.5
+datetest 1.2 julianday('1970-01-01') 2440587.5
+datetest 1.3 julianday('1910-04-20') 2418781.5
+datetest 1.4 julianday('1986-02-09') 2446470.5
+datetest 1.5 julianday('12:00:00') 2451545.0
+datetest 1.6 {julianday('2000-01-01 12:00:00')} 2451545.0
+datetest 1.7 {julianday('2000-01-01 12:00')} 2451545.0
+datetest 1.8 julianday('bogus') NULL
+datetest 1.9 julianday('1999-12-31') 2451543.5
+datetest 1.10 julianday('1999-12-32') NULL
+datetest 1.11 julianday('1999-13-01') NULL
+datetest 1.12 julianday('2003-02-31') 2452701.5
+datetest 1.13 julianday('2003-03-03') 2452701.5
+datetest 1.14 julianday('+2000-01-01') NULL
+datetest 1.15 julianday('200-01-01') NULL
+datetest 1.16 julianday('2000-1-01') NULL
+datetest 1.17 julianday('2000-01-1') NULL
+datetest 1.18.1 {julianday('2000-01-01     12:00:00')} 2451545.0
+datetest 1.18.2 {julianday('2000-01-01T12:00:00')} 2451545.0
+datetest 1.18.3 {julianday('2000-01-01 T12:00:00')} 2451545.0
+datetest 1.18.4 {julianday('2000-01-01T 12:00:00')} 2451545.0
+datetest 1.18.4 {julianday('2000-01-01 T 12:00:00')} 2451545.0
+datetest 1.19 {julianday('2000-01-01 12:00:00.1')}   2451545.00000116
+datetest 1.20 {julianday('2000-01-01 12:00:00.01')}  2451545.00000012
+datetest 1.21 {julianday('2000-01-01 12:00:00.001')} 2451545.00000001
+datetest 1.22 {julianday('2000-01-01 12:00:00.')} NULL
+datetest 1.23 julianday(12345.6) 12345.6
+datetest 1.23b julianday(1721059.5) 1721059.5
+datetest 1.24 {julianday('2001-01-01 12:00:00 bogus')} NULL
+datetest 1.25 {julianday('2001-01-01 bogus')} NULL
+datetest 1.26 {julianday('2001-01-01 12:60:00')} NULL
+datetest 1.27 {julianday('2001-01-01 12:59:60')} NULL
+datetest 1.28 {julianday('2001-00-01')} NULL
+datetest 1.29 {julianday('2001-01-00')} NULL
+
+datetest 2.1 datetime(0,'unixepoch') {1970-01-01 00:00:00}
+datetest 2.1b datetime(0,'unixepoc') NULL
+datetest 2.1c datetime(0,'unixepochx') NULL
+datetest 2.1d datetime('2003-10-22','unixepoch') NULL
+datetest 2.2 datetime(946684800,'unixepoch') {2000-01-01 00:00:00}
+datetest 2.2b datetime('946684800','unixepoch') {2000-01-01 00:00:00}
+for {set i 0} {$i<1000} {incr i} {
+  set sql [format {strftime('%%H:%%M:%%f',1237962480.%03d,'unixepoch')} $i]
+  set res [format {06:28:00.%03d} $i]
+  datetest 2.2c-$i $sql $res
+}
+datetest 2.3 {date('2003-10-22','weekday 0')} 2003-10-26
+datetest 2.4 {date('2003-10-22','weekday 1')} 2003-10-27
+datetest 2.4a {date('2003-10-22','weekday  1')} 2003-10-27
+datetest 2.4b {date('2003-10-22','weekday  1x')} NULL
+datetest 2.4c {date('2003-10-22','weekday  -1')} NULL
+datetest 2.4d {date('2003-10-22','weakday  1x')} NULL
+datetest 2.4e {date('2003-10-22','weekday ')} NULL
+datetest 2.5 {date('2003-10-22','weekday 2')} 2003-10-28
+datetest 2.6 {date('2003-10-22','weekday 3')} 2003-10-22
+datetest 2.7 {date('2003-10-22','weekday 4')} 2003-10-23
+datetest 2.8 {date('2003-10-22','weekday 5')} 2003-10-24
+datetest 2.9 {date('2003-10-22','weekday 6')} 2003-10-25
+datetest 2.10 {date('2003-10-22','weekday 7')} NULL
+datetest 2.11 {date('2003-10-22','weekday 5.5')} NULL
+datetest 2.12 {datetime('2003-10-22 12:34','weekday 0')} {2003-10-26 12:34:00}
+datetest 2.13 {datetime('2003-10-22 12:34','start of month')} \
+   {2003-10-01 00:00:00}
+datetest 2.14 {datetime('2003-10-22 12:34','start of year')} \
+   {2003-01-01 00:00:00}
+datetest 2.15 {datetime('2003-10-22 12:34','start of day')} \
+   {2003-10-22 00:00:00}
+datetest 2.15a {datetime('2003-10-22 12:34','start of')} NULL
+datetest 2.15b {datetime('2003-10-22 12:34','start of bogus')} NULL
+datetest 2.16 time('12:34:56.43') 12:34:56
+datetest 2.17 {datetime('2003-10-22 12:34','1 day')} {2003-10-23 12:34:00}
+datetest 2.18 {datetime('2003-10-22 12:34','+1 day')} {2003-10-23 12:34:00}
+datetest 2.19 {datetime('2003-10-22 12:34','+1.25 day')} {2003-10-23 18:34:00}
+datetest 2.20 {datetime('2003-10-22 12:34','-1.0 day')} {2003-10-21 12:34:00}
+datetest 2.21 {datetime('2003-10-22 12:34','1 month')} {2003-11-22 12:34:00}
+datetest 2.22 {datetime('2003-10-22 12:34','11 month')} {2004-09-22 12:34:00}
+datetest 2.23 {datetime('2003-10-22 12:34','-13 month')} {2002-09-22 12:34:00}
+datetest 2.24 {datetime('2003-10-22 12:34','1.5 months')} {2003-12-07 12:34:00}
+datetest 2.25 {datetime('2003-10-22 12:34','-5 years')} {1998-10-22 12:34:00}
+datetest 2.26 {datetime('2003-10-22 12:34','+10.5 minutes')} \
+  {2003-10-22 12:44:30}
+datetest 2.27 {datetime('2003-10-22 12:34','-1.25 hours')} \
+  {2003-10-22 11:19:00}
+datetest 2.28 {datetime('2003-10-22 12:34','11.25 seconds')} \
+  {2003-10-22 12:34:11}
+datetest 2.29 {datetime('2003-10-22 12:24','+5 bogus')} NULL
+datetest 2.30 {datetime('2003-10-22 12:24','+++')} NULL
+datetest 2.31 {datetime('2003-10-22 12:24','+12.3e4 femtoseconds')} NULL
+datetest 2.32 {datetime('2003-10-22 12:24','+12.3e4 uS')} NULL
+datetest 2.33 {datetime('2003-10-22 12:24','+1 abc')} NULL
+datetest 2.34 {datetime('2003-10-22 12:24','+1 abcd')} NULL
+datetest 2.35 {datetime('2003-10-22 12:24','+1 abcde')} NULL
+datetest 2.36 {datetime('2003-10-22 12:24','+1 abcdef')} NULL
+datetest 2.37 {datetime('2003-10-22 12:24','+1 abcdefg')} NULL
+datetest 2.38 {datetime('2003-10-22 12:24','+1 abcdefgh')} NULL
+datetest 2.39 {datetime('2003-10-22 12:24','+1 abcdefghi')} NULL
+set sqlite_current_time 1199243045
+datetest 2.40 {datetime()} {2008-01-02 03:04:05}
+set sqlite_current_time 0
+datetest 2.41 {datetime('2003-10-22 12:24','23 seconds')} {2003-10-22 12:24:23}
+datetest 2.42 {datetime('2003-10-22 12:24','345 second')} {2003-10-22 12:29:45}
+datetest 2.43 {datetime('2003-10-22 12:24','4 second')} {2003-10-22 12:24:04}
+datetest 2.44 {datetime('2003-10-22 12:24','56 second')} {2003-10-22 12:24:56}
+datetest 2.45 {datetime('2003-10-22 12:24','60 second')} {2003-10-22 12:25:00}
+datetest 2.46 {datetime('2003-10-22 12:24','70 second')} {2003-10-22 12:25:10}
+datetest 2.47 {datetime('2003-10-22 12:24','8.6 seconds')} {2003-10-22 12:24:08}
+datetest 2.48 {datetime('2003-10-22 12:24','9.4 second')} {2003-10-22 12:24:09}
+datetest 2.49 {datetime('2003-10-22 12:24','0000 second')} {2003-10-22 12:24:00}
+datetest 2.50 {datetime('2003-10-22 12:24','0001 second')} {2003-10-22 12:24:01}
+datetest 2.51 {datetime('2003-10-22 12:24','nonsense')} NULL
+
+datetest 2.60 {datetime('2023-02-31')} {2023-03-03 00:00:00}
+
+datetest 3.1 {strftime('%d','2003-10-31 12:34:56.432')} 31
+datetest 3.2.1 {strftime('pre%fpost','2003-10-31 12:34:56.432')} pre56.432post
+datetest 3.2.2 {strftime('%f','2003-10-31 12:34:59.9999999')} 59.999
+datetest 3.3 {strftime('%H','2003-10-31 12:34:56.432')} 12
+datetest 3.4 {strftime('%j','2003-10-31 12:34:56.432')} 304
+datetest 3.5 {strftime('%J','2003-10-31 12:34:56.432')} 2452944.024264259
+datetest 3.6 {strftime('%m','2003-10-31 12:34:56.432')} 10
+datetest 3.7 {strftime('%M','2003-10-31 12:34:56.432')} 34
+datetest 3.8.1 {strftime('%s','2003-10-31 12:34:56.432')} 1067603696
+datetest 3.8.2 {strftime('%s','2038-01-19 03:14:07')} 2147483647
+datetest 3.8.3 {strftime('%s','2038-01-19 03:14:08')} 2147483648
+datetest 3.8.4 {strftime('%s','2201-04-09 12:00:00')} 7298164800
+datetest 3.8.5 {strftime('%s','9999-12-31 23:59:59')} 253402300799
+datetest 3.8.6 {strftime('%s','1969-12-31 23:59:59')} -1
+datetest 3.8.7 {strftime('%s','1901-12-13 20:45:52')} -2147483648
+datetest 3.8.8 {strftime('%s','1901-12-13 20:45:51')} -2147483649
+datetest 3.8.9 {strftime('%s','1776-07-04 00:00:00')} -6106060800
+datetest 3.9 {strftime('%S','2003-10-31 12:34:56.432')} 56
+datetest 3.10 {strftime('%w','2003-10-31 12:34:56.432')} 5
+datetest 3.11.1 {strftime('%W','2003-10-31 12:34:56.432')} 43
+datetest 3.11.2 {strftime('%W','2004-01-01')} 00
+datetest 3.11.3 {strftime('%W','2004-01-02')} 00
+datetest 3.11.4 {strftime('%W','2004-01-03')} 00
+datetest 3.11.5 {strftime('abc%Wxyz','2004-01-04')} abc00xyz
+datetest 3.11.6 {strftime('%W','2004-01-05')} 01
+datetest 3.11.7 {strftime('%W','2004-01-06')} 01
+datetest 3.11.8 {strftime('%W','2004-01-07')} 01
+datetest 3.11.9 {strftime('%W','2004-01-08')} 01
+datetest 3.11.10 {strftime('%W','2004-01-09')} 01
+datetest 3.11.11 {strftime('%W','2004-07-18')} 28
+datetest 3.11.12 {strftime('%W','2004-12-31')} 52
+datetest 3.11.13 {strftime('%W','2007-12-31')} 53
+datetest 3.11.14 {strftime('%W','2007-01-01')} 01
+datetest 3.11.15 {strftime('%W %j',2454109.04140970)} {02 008}
+datetest 3.11.16 {strftime('%W %j',2454109.04140971)} {02 008}
+datetest 3.11.17 {strftime('%W %j',2454109.04140972)} {02 008}
+datetest 3.11.18 {strftime('%W %j',2454109.04140973)} {02 008}
+datetest 3.11.19 {strftime('%W %j',2454109.04140974)} {02 008}
+datetest 3.11.20 {strftime('%W %j',2454109.04140975)} {02 008}
+datetest 3.11.21 {strftime('%W %j',2454109.04140976)} {02 008}
+datetest 3.11.22 {strftime('%W %j',2454109.04140977)} {02 008}
+datetest 3.11.23 {strftime('%W %j',2454109.04140978)} {02 008}
+datetest 3.11.24 {strftime('%W %j',2454109.04140979)} {02 008}
+datetest 3.11.25 {strftime('%W %j',2454109.04140980)} {02 008}
+datetest 3.11.99 {strftime('%W %j','2454109.04140970')} {02 008}
+datetest 3.12 {strftime('%Y','2003-10-31 12:34:56.432')} 2003
+datetest 3.13 {strftime('%%','2003-10-31 12:34:56.432')} %
+datetest 3.14 {strftime('%_','2003-10-31 12:34:56.432')} NULL
+datetest 3.15 {strftime('%Y-%m-%d','2003-10-31')} 2003-10-31
+proc repeat {n txt} {
+  set x {} 
+  while {$n>0} {
+    append x $txt
+    incr n -1
+  }
+  return $x
+}
+datetest 3.16 "strftime('[repeat 200 %Y]','2003-10-31')" [repeat 200 2003]
+datetest 3.17 "strftime('[repeat 200 abc%m123]','2003-10-31')" \
+    [repeat 200 abc10123]
+
+foreach c {a b c h i n o q r t v x y z
+           A B C D E K L N O Q Z
+           0 1 2 3 4 5 6 6 7 9 _} {
+  datetest 3.18.$c "strftime('%$c','2003-10-31')" NULL
+}
+datetest 3.20 {strftime('%e','2023-08-09')} { 9}
+datetest 3.21 {strftime('%F %T','2023-08-09 01:23')} {2023-08-09 01:23:00}
+datetest 3.22 {strftime('%k','2023-08-09 04:59:59')} { 4}
+datetest 3.23 {strftime('%I%P','2023-08-09 11:59:59')} {11am}
+datetest 3.24 {strftime('%I%p','2023-08-09 12:00:00')} {12PM}
+datetest 3.25 {strftime('%I%P','2023-08-09 12:59:59.9')} {12pm}
+datetest 3.26 {strftime('%I%p','2023-08-09 13:00:00')} {01PM}
+datetest 3.27 {strftime('%I%P','2023-08-09 23:59:59')} {11pm}
+datetest 3.28 {strftime('%I%p','2023-08-09 00:00:00')} {12AM}
+datetest 3.29 {strftime('%l:%M%P','2023-08-09 13:00:00')} { 1:00pm}
+datetest 3.30 {strftime('%F %R','2023-08-09 12:34:56')} {2023-08-09 12:34}
+datetest 3.31 {strftime('%w %u','2023-01-01')} {0 7}
+datetest 3.32 {strftime('%w %u','2023-01-02')} {1 1}
+datetest 3.33 {strftime('%w %u','2023-01-03')} {2 2}
+datetest 3.34 {strftime('%w %u','2023-01-04')} {3 3}
+datetest 3.35 {strftime('%w %u','2023-01-05')} {4 4}
+datetest 3.36 {strftime('%w %u','2023-01-06')} {5 5}
+datetest 3.37 {strftime('%w %u','2023-01-07')} {6 6}
+
+# Ticket #2276.  Make sure leading zeros are inserted where appropriate.
+#
+datetest 3.40 \
+   {strftime('%d/%f/%H/%W/%j/%m/%M/%S/%Y','0421-01-02 03:04:05.006')} \
+   02/05.006/03/00/002/01/04/05/0421
+
+set sqlite_current_time 1157124367
+datetest 4.1 {date('now')} {2006-09-01}
+set sqlite_current_time 0
+
+datetest 5.1 {datetime('1994-04-16 14:00:00 +05:00')} {1994-04-16 09:00:00}
+datetest 5.2 {datetime('1994-04-16 14:00:00 -05:15')} {1994-04-16 19:15:00}
+datetest 5.3 {datetime('1994-04-16 05:00:00 +08:30')} {1994-04-15 20:30:00}
+datetest 5.4 {datetime('1994-04-16 14:00:00 -11:55')} {1994-04-17 01:55:00}
+datetest 5.5 {datetime('1994-04-16 14:00:00 -11:60')} NULL
+datetest 5.6 {datetime('1994-04-16 14:00:00 -11:55  ')} {1994-04-17 01:55:00}
+datetest 5.7 {datetime('1994-04-16 14:00:00 -11:55 x')} NULL
+datetest 5.8 {datetime('1994-04-16T14:00:00Z')} {1994-04-16 14:00:00}
+datetest 5.9 {datetime('1994-04-16 14:00:00z')} {1994-04-16 14:00:00}
+datetest 5.10 {datetime('1994-04-16 14:00:00 Z')} {1994-04-16 14:00:00}
+datetest 5.11 {datetime('1994-04-16 14:00:00z    ')} {1994-04-16 14:00:00}
+datetest 5.12 {datetime('1994-04-16 14:00:00     z    ')} {1994-04-16 14:00:00}
+datetest 5.13 {datetime('1994-04-16 14:00:00Zulu')} NULL
+datetest 5.14 {datetime('1994-04-16 14:00:00Z +05:00')} NULL
+datetest 5.15 {datetime('1994-04-16 14:00:00 +05:00 Z')} NULL
+
+# localtime->utc and utc->localtime conversions.
+#
+# Use SQLITE_TESTCTRL_LOCALTIME_FAULT=2 to set an alternative localtime_r()
+# implementation that is not locale-dependent.  The testing localtime_r()
+# operates as follows:
+#
+#     (1)  Localtime is 30 minutes earlier than (west of) UTC on
+#          even days (counting from 1970-01-01)
+#
+#     (2)  Localtime is 30 minutes later than (east of) UTC on odd days.
+#
+#     (3)  The function fails for the specific date/time value
+#          of 2000-05-29 14:16:00 in order to test the ability of
+#          SQLite to deal with localtime_r() failures.
+#
+proc local_to_utc {tn utc local} {
+  do_execsql_test date-$tn "SELECT datetime('$utc','localtime')" [list $local]
+}
+proc utc_to_local {tn local utc} {
+  do_execsql_test date-$tn "SELECT datetime('$local','utc')" [list $utc]
+}
+
+sqlite3_test_control SQLITE_TESTCTRL_LOCALTIME_FAULT 2
+local_to_utc 6.1  {2000-10-29 12:00:00} {2000-10-29 12:30:00}
+utc_to_local 6.2  {2000-10-29 12:30:00} {2000-10-29 12:00:00}
+local_to_utc 6.3  {2000-10-30 12:00:00} {2000-10-30 11:30:00}
+utc_to_local 6.4  {2000-10-30 11:30:00} {2000-10-30 12:00:00}
+
+local_to_utc 6.5  {2000-10-28 23:59:59} {2000-10-28 23:29:59}
+local_to_utc 6.6  {2000-10-29 00:00:00} {2000-10-29 00:30:00}
+
+# The previous two cases establish that no such localtime as
+# 2000-10-29 00:10:00 exists.  Verify that we get a reasonable
+# answer if we try to convert this non-existant localtime to utc?
+#
+utc_to_local 6.7  {2000-10-29 00:10:00} {2000-10-28 23:40:00}
+
+local_to_utc 6.8  {2022-02-10 23:59:59} {2022-02-11 00:29:59}
+local_to_utc 6.9  {2022-02-11 00:00:00} {2022-02-10 23:30:00}
+local_to_utc 6.10 {2022-02-10 23:45:00} {2022-02-11 00:15:00}
+local_to_utc 6.11 {2022-02-11 00:45:00} {2022-02-11 00:15:00}
+
+# The previous two cases show that two different UTC values give
+# the same localtime of 2022-02-11 00:15:00.  When converting from
+# that localtime back to UTC, we should get one or the other of
+# the two UTC values.
+#
+utc_to_local 6.12 {2022-02-11 00:15:00} {2022-02-11 00:45:00}
+
+# If localtime_r() fails, the datetime() SQL function should raise an error
+#
+do_catchsql_test date-6.20 {
+  SELECT datetime('2000-05-29 14:16:00','localtime');
+} {1 {local time unavailable}}
+
+# Modifiers work for dates that are way out of band for localtime_r()
+#
+local_to_utc 6.21 {1800-10-29 12:00:00} {1800-10-29 12:30:00}
+utc_to_local 6.22 {1800-10-29 12:30:00} {1800-10-29 12:00:00}
+local_to_utc 6.23 {3000-10-30 12:00:00} {3000-10-30 11:30:00}
+utc_to_local 6.24 {3000-10-30 11:30:00} {3000-10-30 12:00:00}
+
+# If the time is specified to be ZULU, or if it has an explicit
+# timezone extension, then the time will already be UTC and subsequent
+# 'utc' modifiers are no-ops.
+#
+do_execsql_test date-6.25 {
+  SELECT datetime('2000-10-29 12:00Z','utc','utc');
+} {{2000-10-29 12:00:00}}
+do_execsql_test date-6.26 {
+  SELECT datetime('2000-10-29 12:00:00+05:00');
+} {{2000-10-29 07:00:00}}
+do_execsql_test date-6.27 {
+  SELECT datetime('2000-10-29 12:00:00+05:00', 'utc');
+} {{2000-10-29 07:00:00}}
+
+# Multiple back-and-forth UTC to LOCAL to UTC...
+do_execsql_test date-6.28 {
+  SELECT datetime('2000-10-29 12:00:00Z', 'localtime');
+} {{2000-10-29 12:30:00}}
+do_execsql_test date-6.29 {
+  SELECT datetime('2000-10-29 12:00:00Z', 'utc', 'localtime');
+} {{2000-10-29 12:30:00}}
+do_execsql_test date-6.30 {
+  SELECT datetime('2000-10-29 12:00:00Z', 'utc', 'localtime', 'utc');
+} {{2000-10-29 12:00:00}}
+do_execsql_test date-6.31 {
+  SELECT datetime('2000-10-29 12:00:00Z', 'utc','localtime','utc','localtime');
+} {{2000-10-29 12:30:00}}
+do_execsql_test date-6.32 {
+  SELECT datetime('2000-10-29 12:00:00Z', 'localtime','localtime');
+} {{2000-10-29 12:30:00}}
+
+
+# Restore the use of the OS localtime_r() before going on...
+sqlite3_test_control SQLITE_TESTCTRL_LOCALTIME_FAULT 0
+
+# Date-time functions that contain NULL arguments return a NULL
+# result.
+#
+datetest 7.1 {datetime(null)} NULL
+datetest 7.2 {datetime('now',null)} NULL
+datetest 7.3 {datetime('now','localtime',null)} NULL
+datetest 7.4 {time(null)} NULL
+datetest 7.5 {time('now',null)} NULL
+datetest 7.6 {time('now','localtime',null)} NULL
+datetest 7.7 {date(null)} NULL
+datetest 7.8 {date('now',null)} NULL
+datetest 7.9 {date('now','localtime',null)} NULL
+datetest 7.10 {julianday(null)} NULL
+datetest 7.11 {julianday('now',null)} NULL
+datetest 7.12 {julianday('now','localtime',null)} NULL
+datetest 7.13 {strftime(null,'now')} NULL
+datetest 7.14 {strftime('%s',null)} NULL
+datetest 7.15 {strftime('%s','now',null)} NULL
+datetest 7.16 {strftime('%s','now','localtime',null)} NULL
+
+# Test modifiers when the date begins as a julian day number - to
+# make sure the HH:MM:SS is preserved.  Ticket #551.
+#
+set sqlite_current_time [db eval {SELECT strftime('%s','2003-10-22 12:34:00')}]
+datetest 8.1 {datetime('now','weekday 0')} {2003-10-26 12:34:00}
+datetest 8.2 {datetime('now','weekday 1')} {2003-10-27 12:34:00}
+datetest 8.3 {datetime('now','weekday 2')} {2003-10-28 12:34:00}
+datetest 8.4 {datetime('now','weekday 3')} {2003-10-22 12:34:00}
+datetest 8.5 {datetime('now','start of month')} {2003-10-01 00:00:00}
+datetest 8.6 {datetime('now','start of year')} {2003-01-01 00:00:00}
+datetest 8.7 {datetime('now','start of day')} {2003-10-22 00:00:00}
+datetest 8.8 {datetime('now','1 day')} {2003-10-23 12:34:00}
+datetest 8.9 {datetime('now','+1 day')} {2003-10-23 12:34:00}
+datetest 8.10 {datetime('now','+1.25 day')} {2003-10-23 18:34:00}
+datetest 8.11 {datetime('now','-1.0 day')} {2003-10-21 12:34:00}
+datetest 8.12 {datetime('now','1 month')} {2003-11-22 12:34:00}
+datetest 8.13 {datetime('now','11 month')} {2004-09-22 12:34:00}
+datetest 8.14 {datetime('now','-13 month')} {2002-09-22 12:34:00}
+datetest 8.15 {datetime('now','1.5 months')} {2003-12-07 12:34:00}
+datetest 8.16 {datetime('now','-5 years')} {1998-10-22 12:34:00}
+datetest 8.17 {datetime('now','+10.5 minutes')} {2003-10-22 12:44:30}
+datetest 8.18 {datetime('now','-1.25 hours')} {2003-10-22 11:19:00}
+datetest 8.19 {datetime('now','11.25 seconds')} {2003-10-22 12:34:11}
+datetest 8.90 {datetime('now','abcdefghijklmnopqrstuvwyxzABCDEFGHIJLMNOP')} NULL
+set sqlite_current_time 0
+
+# Negative years work.  Example:  '-4713-11-26' is JD 1.5.
+#
+datetest 9.1 {julianday('-4713-11-24 12:00:00')} {0.0}
+datetest 9.2 {julianday(datetime(5))} {5.0}
+datetest 9.3 {julianday(datetime(10))} {10.0}
+datetest 9.4 {julianday(datetime(100))} {100.0}
+datetest 9.5 {julianday(datetime(1000))} {1000.0}
+datetest 9.6 {julianday(datetime(10000))} {10000.0}
+datetest 9.7 {julianday(datetime(100000))} {100000.0}
+
+# datetime() with just an HH:MM:SS correctly inserts the date 2000-01-01.
+#
+datetest 10.1 {datetime('01:02:03')}  {2000-01-01 01:02:03}
+datetest 10.2 {date('01:02:03')}  {2000-01-01}
+datetest 10.3 {strftime('%Y-%m-%d %H:%M','01:02:03')} {2000-01-01 01:02}
+
+# Test the new HH:MM:SS modifier
+#
+datetest 11.1 {datetime('2004-02-28 20:00:00', '-01:20:30')} \
+   {2004-02-28 18:39:30}
+datetest 11.2 {datetime('2004-02-28 20:00:00', '+12:30:00')} \
+   {2004-02-29 08:30:00}
+datetest 11.3 {datetime('2004-02-28 20:00:00', '+12:30')} \
+   {2004-02-29 08:30:00}
+datetest 11.4 {datetime('2004-02-28 20:00:00', '12:30')} \
+   {2004-02-29 08:30:00}
+datetest 11.5 {datetime('2004-02-28 20:00:00', '-12:00')} \
+   {2004-02-28 08:00:00}
+datetest 11.6 {datetime('2004-02-28 20:00:00', '-12:01')} \
+   {2004-02-28 07:59:00}
+datetest 11.7 {datetime('2004-02-28 20:00:00', '-11:59')} \
+   {2004-02-28 08:01:00}
+datetest 11.8 {datetime('2004-02-28 20:00:00', '11:59')} \
+   {2004-02-29 07:59:00}
+datetest 11.9 {datetime('2004-02-28 20:00:00', '12:01')} \
+   {2004-02-29 08:01:00}
+datetest 11.10 {datetime('2004-02-28 20:00:00', '12:60')} NULL
+
+# Ticket #1964
+datetest 12.1 {datetime('2005-09-01')} {2005-09-01 00:00:00}
+datetest 12.2 {datetime('2005-09-01','+0 hours')} {2005-09-01 00:00:00}
+
+# Ticket #1991
+do_test date-13.1 {
+  execsql {
+    SELECT strftime('%Y-%m-%d %H:%M:%f', julianday('2006-09-24T10:50:26.047'))
+  }
+} {{2006-09-24 10:50:26.047}}
+
+# Ticket #2153
+datetest 13.2 {strftime('%Y-%m-%d %H:%M:%S', '2007-01-01 12:34:59.6')} \
+  {2007-01-01 12:34:59}
+datetest 13.3 {strftime('%Y-%m-%d %H:%M:%f', '2007-01-01 12:34:59.6')} \
+  {2007-01-01 12:34:59.600}
+datetest 13.4 {strftime('%Y-%m-%d %H:%M:%S', '2007-01-01 12:59:59.6')} \
+  {2007-01-01 12:59:59}
+datetest 13.5 {strftime('%Y-%m-%d %H:%M:%f', '2007-01-01 12:59:59.6')} \
+  {2007-01-01 12:59:59.600}
+datetest 13.6 {strftime('%Y-%m-%d %H:%M:%S', '2007-01-01 23:59:59.6')} \
+  {2007-01-01 23:59:59}
+datetest 13.7 {strftime('%Y-%m-%d %H:%M:%f', '2007-01-01 23:59:59.6')} \
+  {2007-01-01 23:59:59.600}
+
+# Ticket #3618
+datetest 13.11 {julianday(2454832.5,'-1 day')} {2454831.5}
+datetest 13.12 {julianday(2454832.5,'+1 day')} {2454833.5}
+datetest 13.13 {julianday(2454832.5,'-1.5 day')} {2454831.0}
+datetest 13.14 {julianday(2454832.5,'+1.5 day')} {2454834.0}
+datetest 13.15 {julianday(2454832.5,'-3 hours')} {2454832.375}
+datetest 13.16 {julianday(2454832.5,'+3 hours')} {2454832.625}
+datetest 13.17 {julianday(2454832.5,'-45 minutes')} {2454832.46875}
+datetest 13.18 {julianday(2454832.5,'+45 minutes')} {2454832.53125}
+datetest 13.19 {julianday(2454832.5,'-675 seconds')} {2454832.4921875}
+datetest 13.20 {julianday(2454832.5,'+675 seconds')} {2454832.5078125}
+datetest 13.21 {julianday(2454832.5,'-1.5 months')} {2454786.5}
+datetest 13.22 {julianday(2454832.5,'+1.5 months')} {2454878.5}
+datetest 13.23 {julianday(2454832.5,'-1.5 years')} {2454284.0}
+datetest 13.24 {julianday(2454832.5,'+1.5 years')} {2455380.0}
+
+datetest 13.30 {date('2000-01-01','+1.5 years')} {2001-07-02}
+datetest 13.31 {date('2001-01-01','+1.5 years')} {2002-07-02}
+datetest 13.32 {date('2002-01-01','+1.5 years')} {2003-07-02}
+datetest 13.33 {date('2002-01-01','-1.5 years')} {2000-07-02}
+datetest 13.34 {date('2001-01-01','-1.5 years')} {1999-07-02}
+datetest 13.35 {date('2023-02-28')} {2023-02-28}
+datetest 13.36 {date('2023-02-29')} {2023-03-01}
+datetest 13.37 {date('2023-04-31')} {2023-05-01}
+
+# Test for issues reported by BareFeet (list.sql at tandb.com.au)
+# on mailing list on 2008-06-12.
+#
+# Put a floating point number in the database so that we can manipulate
+# raw bits using the hexio interface.
+#
+if {0==[sqlite3 -has-codec]} {
+  do_test date-14.1 {
+    execsql {
+      PRAGMA auto_vacuum=OFF;
+      PRAGMA page_size = 1024;
+      CREATE TABLE t1(x);
+      INSERT INTO t1 VALUES(1.1);
+    }
+    db close
+    hexio_write test.db 2040 4142ba32bffffff9
+    sqlite3 db test.db
+    db eval {SELECT * FROM t1}
+  } {2454629.5}
+  
+  # Changing the least significant byte of the floating point value between
+  # 00 and FF should always generate a time of either 23:59:59 or 00:00:00,
+  # never 24:00:00
+  #
+  for {set i 0} {$i<=255} {incr i} {
+    db close
+    hexio_write test.db 2047 [format %02x $i]
+    sqlite3 db test.db
+    do_test date-14.2.$i {
+      set date [db one {SELECT datetime(x) FROM t1}]
+      expr {$date eq "2008-06-12 00:00:00" || $date eq "2008-06-11 23:59:59"}
+    } {1}
+  }
+}
+
+# Verify that multiple calls to date functions with 'now' return the
+# same answer.
+#
+# EVIDENCE-OF: R-34818-13664 The 'now' argument to date and time
+# functions always returns exactly the same value for multiple
+# invocations within the same sqlite3_step() call.
+#
+proc sleeper {} {after 100}
+do_test date-15.1 {
+  db func sleeper sleeper
+  db eval {
+     SELECT c - a FROM (SELECT julianday('now') AS a,
+                               sleeper(), julianday('now') AS c);
+  }
+} {0.0}
+do_test date-15.2 {
+  db eval {
+     SELECT a==b FROM (SELECT current_timestamp AS a,
+                               sleeper(), current_timestamp AS b);
+  }
+} {1}
+
+# Tests of extreme values in date/time functions.  Run with UBSan or the
+# equivalent to verify no signed interger overflow warnings.
+#
+datetest 16.1 {date(147483649)} NULL
+datetest 16.2 {datetime(0)} {-4713-11-24 12:00:00}
+datetest 16.3 {datetime(5373484.49999999)} {9999-12-31 23:59:59}
+datetest 16.4 {julianday('-4713-11-24 12:00:00')} 0.0
+datetest 16.5 {julianday('9999-12-31 23:59:59.999')} 5373484.49999999
+datetest 16.6 {datetime(0,'+464269060799 seconds')} {9999-12-31 23:59:59}
+datetest 16.7 {datetime(0,'+464269060800 seconds')} NULL
+datetest 16.8 {datetime(0,'+7737817679 minutes')} {9999-12-31 23:59:00}
+datetest 16.9 {datetime(0,'+7737817680 minutes')} NULL
+datetest 16.10 {datetime(0,'+128963627 hours')} {9999-12-31 23:00:00}
+datetest 16.11 {datetime(0,'+128963628 hours')} NULL
+datetest 16.12 {datetime(0,'+5373484 days')} {9999-12-31 12:00:00}
+datetest 16.13 {datetime(0,'+5373485 days')} NULL
+datetest 16.14 {datetime(0,'+176545 months')} {9999-12-24 12:00:00}
+datetest 16.15 {datetime(0,'+176546 months')} NULL
+datetest 16.16 {datetime(0,'+14712 years')} {9999-11-24 12:00:00}
+datetest 16.17 {datetime(0,'+14713 years')} NULL
+datetest 16.20 {datetime(5373484.4999999,'-464269060799 seconds')} \
+                {-4713-11-24 12:00:00}
+datetest 16.21 {datetime(5373484,'-464269060800 seconds')} NULL
+datetest 16.22 {datetime(5373484.4999999,'-7737817679 minutes')} \
+               {-4713-11-24 12:00:59}
+datetest 16.23 {datetime(5373484,'-7737817680 minutes')} NULL
+datetest 16.24 {datetime(5373484.4999999,'-128963627 hours')} \
+               {-4713-11-24 12:59:59}
+datetest 16.25 {datetime(5373484,'-128963628 hours')} NULL
+datetest 16.26 {datetime(5373484,'-5373484 days')} {-4713-11-24 12:00:00}
+datetest 16.27 {datetime(5373484,'-5373485 days')} NULL
+datetest 16.28 {datetime(5373484,'-176545 months')} {-4713-12-01 12:00:00}
+datetest 16.29 {datetime(5373484,'-176546 months')} NULL
+datetest 16.30 {datetime(5373484,'-14712 years')} {-4713-12-31 12:00:00}
+datetest 16.31 {datetime(5373484,'-14713 years')} NULL
+
+# 2017-03-02: Wrong 'start of day' computation.
+# https://www.sqlite.org/src/info/6097cb92745327a1
+#
+datetest 17.1 {datetime(2457754, 'start of day')} {2016-12-31 00:00:00}
+datetest 17.2 {datetime(2457828)} {2017-03-15 12:00:00}
+datetest 17.3 {datetime(2457828,'start of day')} {2017-03-15 00:00:00}
+datetest 17.4 {datetime(2457828,'start of month')} {2017-03-01 00:00:00}
+datetest 17.5 {datetime(2457828,'start of year')} {2017-01-01 00:00:00}
+datetest 17.6 {datetime(37,'start of year')} NULL
+datetest 17.7 {datetime(38,'start of year')} {-4712-01-01 00:00:00}
+
+# 2022-03-04 https://sqlite.org/forum/forumpost/2ffbaa2c3fd7fb82
+# The 'localtime' modifier should preserve fractional seconds.
+#
+datetest 18.1 {strftime('%f',1.234,'unixepoch','localtime')} {01.234}
+
+# 2023-04 The 'subsecond' (or 'subsec') modifier alters resolutions
+# to at least milliseconds. Added for release 3.42.0 .
+datetest 18.2 {unixepoch('1970-01-01T00:00:00.1', 'subsec')} {0.1}
+datetest 18.3 {unixepoch('1970-01-01T00:00:00.2', 'subsecond')} {0.2}
+datetest 18.4 {julianday('-4713-11-24 13:40:48.864', 'subsec')} {0.07001}
+datetest 18.5 {typeof(unixepoch('now', 'subsecond'))} {real}
+
+# 2024-03-03 the 'ceiling' and 'floor' operators.
+#
+datetest 19.1 {date('2000-01-31','floor')} {2000-01-31}
+datetest 19.2a {date('2000-02-31','floor')} {2000-02-29}
+datetest 19.2b {date('1999-02-31','floor')} {1999-02-28}
+datetest 19.2c {date('1900-02-31','floor')} {1900-02-28}
+datetest 19.3 {date('2000-03-31','floor')} {2000-03-31}
+datetest 19.4 {date('2000-04-31','floor')} {2000-04-30}
+datetest 19.5 {date('2000-05-31','floor')} {2000-05-31}
+datetest 19.6 {date('2000-06-31','floor')} {2000-06-30}
+datetest 19.7 {date('2000-07-31','floor')} {2000-07-31}
+datetest 19.8 {date('2000-08-31','floor')} {2000-08-31}
+datetest 19.9 {date('2000-09-31','floor')} {2000-09-30}
+datetest 19.10 {date('2000-10-31','floor')} {2000-10-31}
+datetest 19.11 {date('2000-11-31','floor')} {2000-11-30}
+datetest 19.12 {date('2000-12-31','floor')} {2000-12-31}
+datetest 19.21 {date('2000-01-31','ceiling')} {2000-01-31}
+datetest 19.22a {date('2000-02-31','ceiling')} {2000-03-02}
+datetest 19.22b {date('1999-02-31','ceiling')} {1999-03-03}
+datetest 19.22c {date('1900-02-31','ceiling')} {1900-03-03}
+datetest 19.23 {date('2000-03-31','ceiling')} {2000-03-31}
+datetest 19.24 {date('2000-04-31','ceiling')} {2000-05-01}
+datetest 19.25 {date('2000-05-31','ceiling')} {2000-05-31}
+datetest 19.26 {date('2000-06-31','ceiling')} {2000-07-01}
+datetest 19.27 {date('2000-07-31','ceiling')} {2000-07-31}
+datetest 19.28 {date('2000-08-31','ceiling')} {2000-08-31}
+datetest 19.29 {date('2000-09-31','ceiling')} {2000-10-01}
+datetest 19.30 {date('2000-10-31','ceiling')} {2000-10-31}
+datetest 19.31 {date('2000-11-31','ceiling')} {2000-12-01}
+datetest 19.32 {date('2000-12-31','ceiling')} {2000-12-31}
+datetest 19.40 {date('2024-01-31','+1 month','ceiling')} {2024-03-02}
+datetest 19.41 {date('2024-01-31','+1 month','floor')} {2024-02-29}
+datetest 19.42 {date('2023-01-31','+1 month','ceiling')} {2023-03-03}
+datetest 19.43 {date('2023-01-31','+1 month','floor')} {2023-02-28}
+datetest 19.44 {date('2024-02-29','+1 year','ceiling')} {2025-03-01}
+datetest 19.45 {date('2024-02-29','+1 year','floor')} {2025-02-28}
+datetest 19.46 {date('2024-02-29','-110 years','ceiling')} {1914-03-01}
+datetest 19.47 {date('2024-02-29','-110 years','floor')} {1914-02-28}
+datetest 19.48 {date('2024-02-29','-0110-00-00','floor')} {1914-02-28}
+datetest 19.49 {date('2024-02-29','-0110-00-00','ceiling')} {1914-03-01}
+datetest 19.50 {date('2000-08-31','+0023-06-00','floor')} {2024-02-29}
+datetest 19.51 {date('2000-08-31','+0022-06-00','floor')} {2023-02-28}
+datetest 19.52 {date('2000-08-31','+0023-06-00','ceiling')} {2024-03-02}
+datetest 19.53 {date('2000-08-31','+0022-06-00','ceiling')} {2023-03-03}
+
+
+finish_test
diff --git a/test/date2.test b/test/date2.test
new file mode 100644
index 0000000000000000000000000000000000000000..a16e25c448b7483107e90bc7e705cc3a296afaae
--- /dev/null
+++ b/test/date2.test
@@ -0,0 +1,176 @@
+# 2017-07-20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing date and time functions used in
+# check constraints and index expressions.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Skip this whole file if date and time functions are omitted
+# at compile-time
+#
+ifcapable {!datetime} {
+  finish_test
+  return
+}
+
+do_execsql_test date2-100 {
+  CREATE TABLE t1(x, y, CHECK( date(x) BETWEEN '2017-07-01' AND '2017-07-31' ));
+  INSERT INTO t1(x,y) VALUES('2017-07-20','one');
+} {}
+do_catchsql_test date2-110 {
+  INSERT INTO t1(x,y) VALUES('now','two');
+} {1 {non-deterministic use of date() in a CHECK constraint}}
+do_execsql_test date2-120 {
+  SELECT * FROM t1;
+} {2017-07-20 one}
+do_catchsql_test date2-130 {
+  INSERT INTO t1(x,y) VALUES('2017-08-01','two');
+} {1 {CHECK constraint failed: date(x) BETWEEN '2017-07-01' AND '2017-07-31'}}
+
+# 2021-03-16 Forum post https://sqlite.org/forum/forumpost/464afd4086
+do_catchsql_test date2-140 {
+  DROP TABLE t1;
+  CREATE TABLE t1(x, y, z AS (date()));
+  INSERT INTO t1(x,y) VALUES(1,2);
+} {1 {non-deterministic use of date() in a generated column}}
+
+do_execsql_test date2-200 {
+  CREATE TABLE t2(x,y);
+  INSERT INTO t2(x,y) VALUES(1, '2017-07-20'), (2, 'xyzzy');
+  CREATE INDEX t2y ON t2(date(y));
+}
+do_catchsql_test date2-210 {
+  INSERT INTO t2(x,y) VALUES(3, 'now');
+} {1 {non-deterministic use of date() in an index}}
+do_execsql_test date2-220 {
+  SELECT x, y FROM t2 ORDER BY x;
+} {1 2017-07-20 2 xyzzy}
+
+do_execsql_test date2-300 {
+  CREATE TABLE t3(a INTEGER PRIMARY KEY,b);
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<1000)
+    INSERT INTO t3(a,b) SELECT x, julianday('2017-07-01')+x FROM c;
+  UPDATE t3 SET b='now' WHERE a=500;
+}
+do_catchsql_test date2-310 {
+  CREATE INDEX t3b1 ON t3(datetime(b));
+} {1 {non-deterministic use of datetime() in an index}}
+do_catchsql_test date2-320 {
+  CREATE INDEX t3b1 ON t3(datetime(b)) WHERE typeof(b)='real';
+} {0 {}}
+do_execsql_test date2-330 {
+  EXPLAIN QUERY PLAN
+  SELECT a FROM t3
+   WHERE typeof(b)='real'
+     AND datetime(b) BETWEEN '2017-07-04' AND '2017-07-08';
+} {/USING INDEX t3b/}
+do_execsql_test date2-331 {
+  SELECT a FROM t3
+   WHERE typeof(b)='real'
+     AND datetime(b) BETWEEN '2017-07-04' AND '2017-07-08'
+  ORDER BY a;
+} {3 4 5 6}
+
+do_execsql_test date2-400 {
+  CREATE TABLE t4(a INTEGER PRIMARY KEY,b);
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<1000)
+    INSERT INTO t4(a,b) SELECT x, julianday('2017-07-01')+x FROM c;
+  UPDATE t4 SET b='now' WHERE a=500;
+}
+do_catchsql_test date2-410 {
+  CREATE INDEX t4b1 ON t4(b)
+    WHERE date(b) BETWEEN '2017-06-01' AND '2017-08-31';
+} {1 {non-deterministic use of date() in an index}}
+do_execsql_test date2-420 {
+  DELETE FROM t4 WHERE a=500;
+  CREATE INDEX t4b1 ON t4(b)
+    WHERE date(b) BETWEEN '2017-06-01' AND '2017-08-31';
+}
+do_catchsql_test date2-430 {
+  INSERT INTO t4(a,b) VALUES(9999,'now');
+} {1 {non-deterministic use of date() in an index}}
+
+do_execsql_test date2-500 {
+  CREATE TABLE mods(x);
+  INSERT INTO mods(x) VALUES
+    ('+10 days'),
+    ('-10 days'),
+    ('+10 hours'),
+    ('-10 hours'),
+    ('+10 minutes'),
+    ('-10 minutes'),
+    ('+10 seconds'),
+    ('-10 seconds'),
+    ('+10 months'),
+    ('-10 months'),
+    ('+10 years'),
+    ('-10 years'),
+    ('start of month'),
+    ('start of year'),
+    ('start of day'),
+    ('weekday 1'),
+    ('unixepoch');
+  CREATE TABLE t5(y,m);
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<5)
+    INSERT INTO t5(y,m) SELECT julianday('2017-07-01')+c.x, mods.x FROM c, mods;
+  CREATE INDEX t5x1 on t5(y) WHERE datetime(y,m) IS NOT NULL;
+}
+do_catchsql_test date2-510 {
+  INSERT INTO t5(y,m) VALUES('2017-07-20','localtime');
+} {1 {non-deterministic use of datetime() in an index}}
+do_catchsql_test date2-520 {
+  INSERT INTO t5(y,m) VALUES('2017-07-20','utc');
+} {1 {non-deterministic use of datetime() in an index}}
+
+# 2019-10-30 Ticket 830277d9db6c3ba1
+#
+do_catchsql_test date2-600 {
+  CREATE TABLE t600(a REAL CHECK( a<julianday('now') ));
+  INSERT INTO t600(a) VALUES(1.0);
+} {1 {non-deterministic use of julianday() in a CHECK constraint}}
+do_catchsql_test date2-601 {
+  CREATE TABLE t601(a REAL, b TEXT, CHECK( a<julianday(b) ));
+  INSERT INTO t601(a,b) VALUES(1.0, '1970-01-01');
+} {0 {}}
+do_catchsql_test date2-602 {
+  INSERT INTO t601(a,b) VALUES(1e100, '1970-01-01');
+} {1 {CHECK constraint failed: a<julianday(b)}}
+do_catchsql_test date2-603 {
+  INSERT INTO t601(a,b) VALUES(10, 'now');
+} {1 {non-deterministic use of julianday() in a CHECK constraint}}
+do_catchsql_test date2-604 {
+  INSERT INTO t600(a) VALUES(julianday('now')+10);
+} {1 {non-deterministic use of julianday() in a CHECK constraint}}
+
+
+do_catchsql_test date2-610 {
+  CREATE TABLE t610(a,b);
+  CREATE INDEX t610x1 ON t610(julianday('now')+b);
+  INSERT INTO t610(a,b) VALUES(123,456);
+} {1 {non-deterministic use of julianday() in an index}}
+do_catchsql_test date2-611 {
+  CREATE TABLE t611(a,b);
+  CREATE INDEX t611x1 ON t611(julianday(a)+b);
+  INSERT INTO t611(a,b) VALUES('1970-01-01',10.0);
+} {0 {}}
+do_catchsql_test date2-612 {
+  INSERT INTO t611(a,b) VALUES('now',10.0);
+} {1 {non-deterministic use of julianday() in an index}}
+
+do_catchsql_test date3-620 {
+  CREATE TABLE t620(a, b AS (a+julianday('now')));
+  INSERT INTO t620 VALUES(10);
+} {1 {non-deterministic use of julianday() in a generated column}}
+
+finish_test
diff --git a/test/date3.test b/test/date3.test
new file mode 100644
index 0000000000000000000000000000000000000000..1798a3478a6243de66ad57dfefa971c7411d0b31
--- /dev/null
+++ b/test/date3.test
@@ -0,0 +1,149 @@
+# 2022-01-27
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing date and time functions.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Skip this whole file if date and time functions are omitted
+# at compile-time
+#
+ifcapable {!datetime} {
+  finish_test
+  return
+}
+
+proc datetest {tnum expr result} {
+  do_test date3-$tnum [subst {
+    execsql "SELECT coalesce($expr,'NULL')"
+  }] [list $result]
+}
+set tcl_precision 15
+
+# EVIDENCE-OF: R-45708-63005 unixepoch(time-value, modifier, modifier,
+# ...)
+#
+datetest 1.1 {unixepoch('1970-01-01')} {0}
+datetest 1.2 {unixepoch('1969-12-31 23:59:59')} {-1}
+datetest 1.3 {unixepoch('2106-02-07 06:28:15')} {4294967295}
+datetest 1.4 {unixepoch('2106-02-07 06:28:16')} {4294967296}
+datetest 1.5 {unixepoch('9999-12-31 23:59:59')} {253402300799}
+datetest 1.6 {unixepoch('0000-01-01 00:00:00')} {-62167219200}
+
+# EVIDENCE-OF: R-30877-63179 The unixepoch() function returns a unix
+# timestamp - the number of seconds since 1970-01-01 00:00:00 UTC.
+#
+for {set i 1} {$i<=100} {incr i} {
+  set x [expr {int(rand()*0xfffffffff)-0xffffffff}]
+  datetest 1.7.$i "unixepoch($x,'unixepoch')==$x" {1}
+}
+
+# EVIDENCE-OF: R-62992-54137 The unixepoch() always returns an integer,
+# even if the input time-value has millisecond precision.
+#
+datetest 1.8 {unixepoch('2022-01-27 12:59:28.052')} {1643288368}
+
+# EVIDENCE-OF: R-05412-24332 If the time-value is numeric (the
+# DDDDDDDDDD format) then the 'auto' modifier causes the time-value to
+# interpreted as either a julian day number or a unix timestamp,
+# depending on its magnitude.
+#
+# EVIDENCE-OF: R-56763-40111 If the value is between 0.0 and
+# 5373484.499999, then it is interpreted as a julian day number
+# (corresponding to dates between -4713-11-24 12:00:00 and 9999-12-31
+# 23:59:59, inclusive).
+#
+# EVIDENCE-OF: R-07289-49223 For numeric values outside of the range of
+# valid julian day numbers, but within the range of -210866760000 to
+# 253402300799, the 'auto' modifier causes the value to be interpreted
+# as a unix timestamp.
+#
+# EVIDENCE-OF: R-20795-34947 Other numeric values are out of range and
+# cause a NULL return.
+#
+foreach {tn jd date} {
+  2.1  0.0              {-4713-11-24 12:00:00}
+  2.2  5373484.4999999  {9999-12-31 23:59:59}
+  2.3  2440587.5        {1970-01-01 00:00:00}
+  2.4  2440587.49998843 {1969-12-31 23:59:59}
+  2.5  2440615.7475463  {1970-01-29 05:56:28}
+
+  2.10 -1               {1969-12-31 23:59:59}
+  2.11 5373485          {1970-03-04 04:38:05}
+  2.12 -210866760000    {-4713-11-24 12:00:00}
+  2.13 253402300799     {9999-12-31 23:59:59}
+
+  2.20 -210866760001    {NULL}
+  2.21 253402300800     {NULL}
+} {
+  datetest $tn "datetime($jd,'auto')" $date
+}
+
+# EVIDENCE-OF: R-38886-35357 The 'auto' modifier is a no-op for text
+# time-values.
+#
+datetest 2.30 {date('2022-01-29','auto')==date('2022-01-29')} {1}
+
+# EVIDENCE-OF: R-53132-26856 The 'auto' modifier can be used to work
+# with date/time values even in cases where it is not known if the
+# julian day number or unix timestamp formats are in use.
+#
+do_execsql_test date3-2.40 {
+  WITH tx(timeval,datetime) AS (
+     VALUES('2022-01-27 13:15:44','2022-01-27 13:15:44'),
+           (2459607.05260275,'2022-01-27 13:15:44'),
+           (1643289344,'2022-01-27 13:15:44')
+  )
+  SELECT datetime(timeval,'auto') == datetime FROM tx;
+} {1 1 1}
+
+# EVIDENCE-OF: R-49255-55373 The "unixepoch" modifier (11) only works if
+# it immediately follows a time value in the DDDDDDDDDD format.
+#
+# EVIDENCE-OF: R-23075-39245 This modifier causes the DDDDDDDDDD to be
+# interpreted not as a Julian day number as it normally would be, but as
+# Unix Time - the number of seconds since 1970.
+#
+datetest 3.1 {datetime(2459607.05,'+1 hour','unixepoch')} {NULL}
+datetest 3.2 {datetime(2459607.05,'unixepoch','+1 hour')} {1970-01-29 12:13:27}
+
+# EVIDENCE-OF: R-21150-52363 The "julianday" modifier must immediately
+# follow the initial time-value which must be of the form DDDDDDDDD.
+#
+# EVIDENCE-OF: R-31176-64601 Any other use of the 'julianday' modifier
+# is an error and causes the function to return NULL.
+#
+# EVIDENCE-OF: R-32483-36353 The 'julianday' modifier forces the
+# time-value number to be interpreted as a julian-day number.
+#
+# EVIDENCE-OF: R-25859-20124 The only difference is that adding
+# 'julianday' forces the DDDDDDDDD time-value format, and causes a NULL
+# to be returned if any other time-value format is used.
+#
+datetest 4.1 {datetime(2459607,'julianday')}           {2022-01-27 12:00:00}
+datetest 4.2 {datetime(2459607,'+1 hour','julianday')} {NULL}
+datetest 4.3 {datetime('2022-01-27','julianday')}      {NULL}
+
+
+
+# EVIDENCE-OF: R-33431-18865 Unix timestamps for the first 63 days of
+# 1970 will be interpreted as julian day numbers.
+#
+do_execsql_test date3-5.0 {
+  WITH inc(x) AS (VALUES(-10) UNION ALL SELECT x+1 FROM inc WHERE x<100)
+  SELECT count(*) FROM inc
+  WHERE datetime('1970-01-01',format('%+d days',x))
+     <> datetime(unixepoch('1970-01-01',format('%+d days',x)),'auto');
+} {63}
+
+finish_test
diff --git a/test/date4.test b/test/date4.test
new file mode 100644
index 0000000000000000000000000000000000000000..56a9090b1b06d2057b6e3227686c3d955a643db0
--- /dev/null
+++ b/test/date4.test
@@ -0,0 +1,38 @@
+# 2023-08-29
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test cases for the strftime() SQL function.  Comparisons against the
+# C-library strftime() function.
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Skip this whole file if date and time functions are omitted
+# at compile-time
+#
+ifcapable {!datetime} {
+  finish_test
+  return
+}
+
+if {$tcl_platform(os)=="Linux"} {
+  set FMT {%d,%e,%F,%H,%k,%I,%l,%j,%m,%M,%u,%w,%W,%Y,%%,%P,%p,%U,%V,%G,%g}
+} else {
+  set FMT {%d,%e,%F,%H,%I,%j,%p,%R,%u,%w,%W,%%}
+}
+for {set i 0} {$i<=24858} {incr i} {
+  set TS [expr {$i*86390}]
+  do_execsql_test date4-$i {
+    SELECT strftime($::FMT,$::TS,'unixepoch');
+  } [list [strftime $FMT $TS]]
+}
+
+finish_test
diff --git a/test/date5.test b/test/date5.test
new file mode 100644
index 0000000000000000000000000000000000000000..688f84d0f1d0f1ec53d6826a73a8ad51b7af44e0
--- /dev/null
+++ b/test/date5.test
@@ -0,0 +1,86 @@
+# 2024-08-19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# https://sqlite.org/forum/forumpost/eaa0a09786c6368b
+#
+# Apparently SQLite has been miscomputing leap-year dates before
+# the year 0400.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Skip this whole file if date and time functions are omitted
+# at compile-time
+#
+ifcapable {!datetime} {
+  finish_test
+  return
+}
+
+# Data sources:
+#   1-10  https://ssd.jpl.nasa.gov/tools/jdc/#/cd
+#   11    Jean Meeus, Astronomical Algorithms, ISBN 0-943396-61-1, p.59
+#   12    https://en.wikipedia.org/wiki/Julian_day
+#   
+# ID YEAR MONTH DAY JD
+set date5data {
+   1 2024     2  29 2460369.5
+   2 2024     3   1 2460370.5
+   3 2023     2  28 2460003.5
+   4 2023     3   1 2460004.5
+   5 2000     2  29 2451603.5
+   6 2000     3   1 2451604.5
+   7 1900     2  28 2415078.5
+   8 1900     3   1 2415079.5
+   9 1712     2  29 2346413.5
+  10 1712     3   1 2346414.5
+  11 1977     4  26 2443259.5
+  12 2013     1   1 2456293.5
+}
+
+foreach {id y m d jd} $date5data {
+  set date [format %04d-%02d-%02d $y $m $d]
+  do_execsql_test date5-jd$jd {
+    SELECT date($::jd);
+  } $date
+  do_execsql_test date5-cal/$date {
+    SELECT julianday($::date);
+  } $jd
+  for {set i 1} {$y+400*$i<=9999} {incr i} {
+    set y2 [expr {$y+400*$i}]
+    set date2 [format %04d-%02d-%02d $y2 $m $d]
+    set jd2 [expr {$jd+146097*$i}]
+    do_execsql_test date5-jd$jd2 {
+      SELECT date($::jd2);
+    } $date2
+    do_execsql_test date5-cal/$date2 {
+      SELECT julianday($::date2);
+    } $jd2
+  }
+  for {set i 1} {$y-400*$i>=-4712} {incr i} {
+    set y2 [expr {$y-400*$i}]
+    if {$y2<0} {
+      set date2 [format -%04d-%02d-%02d [expr {-$y2}] $m $d]
+    } else {
+      set date2 [format %04d-%02d-%02d $y2 $m $d]
+    }
+    set jd2 [expr {$jd-146097*$i}]
+    do_execsql_test date5-jd$jd2 {
+      SELECT date($::jd2);
+    } $date2
+    do_execsql_test date5-cal/$date2 {
+      SELECT julianday($::date2);
+    } $jd2
+  }
+}
+
+finish_test
diff --git a/test/dbdata.test b/test/dbdata.test
new file mode 100644
index 0000000000000000000000000000000000000000..5b1150c78f18322e8f9dfde6bdde6bfd6d686369
--- /dev/null
+++ b/test/dbdata.test
@@ -0,0 +1,115 @@
+# 2019-04-11
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the sqlite_dbpage virtual table.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix dbdata
+
+ifcapable !vtab||!compound {
+  finish_test
+  return
+}
+if { [catch { db enable_load_extension 1 }]
+  || [catch { db eval { SELECT load_extension('../dbdata') } }] 
+} {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE TABLE T1(a, b);
+  INSERT INTO t1(rowid, a ,b) VALUES(5, 'v', 'five');
+  INSERT INTO t1(rowid, a, b) VALUES(10, 'x', 'ten');
+}
+
+do_execsql_test 1.1 {
+  SELECT pgno, cell, field, quote(value) FROM sqlite_dbdata WHERE pgno=2;
+} {
+  2 0 -1 5 
+  2 0  0 'v' 
+  2 0  1 'five' 
+  2 1 -1 10 
+  2 1  0 'x' 
+  2 1  1 'ten'
+}
+
+breakpoint
+do_execsql_test 1.2 {
+  SELECT pgno, cell, field, quote(value) FROM sqlite_dbdata;
+} {
+  1 0 -1 1 
+  1 0 0 'table' 
+  1 0 1 'T1' 
+  1 0 2 'T1' 
+  1 0 3 2 
+  1 0 4 {'CREATE TABLE T1(a, b)'}
+  2 0 -1 5 
+  2 0  0 'v' 
+  2 0  1 'five' 
+  2 1 -1 10 
+  2 1  0 'x' 
+  2 1  1 'ten'
+}
+
+set big [string repeat big 2000]
+do_execsql_test 1.3 {
+  INSERT INTO t1 VALUES(NULL, $big);
+  SELECT value FROM sqlite_dbdata WHERE pgno=2 AND cell=2 AND field=1;
+} $big
+
+do_execsql_test 1.4 {
+  DELETE FROM t1;
+  INSERT INTO t1 VALUES(NULL, randomblob(5050));
+}
+do_test 1.5 {
+  execsql {
+    SELECT quote(value) FROM sqlite_dbdata WHERE pgno=2 AND cell=0 AND field=1;
+  }
+} [db one {SELECT quote(b) FROM t1}]
+
+#-------------------------------------------------------------------------
+reset_db
+db enable_load_extension 1
+db eval { SELECT load_extension('../dbdata') }
+
+do_execsql_test 2.0 {
+  CREATE TABLE t1(a);
+  CREATE INDEX i1 ON t1(a);
+  WITH s(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<10
+  )
+  INSERT INTO t1 SELECT randomblob(900) FROM s;
+}
+
+do_execsql_test 2.1 {
+  SELECT * FROM sqlite_dbptr WHERE pgno=2;
+} {
+  2 25   2 6   2 7   2 9   2 11   2 13   2 15   2 17   2 19   2 21
+}
+
+do_execsql_test 2.2 {
+  SELECT * FROM sqlite_dbptr WHERE pgno=3;
+} {
+  3 24   3 23
+}
+
+do_execsql_test 2.3 {
+  SELECT * FROM sqlite_dbptr
+} {
+  2 25   2 6   2 7   2 9   2 11   2 13   2 15   2 17   2 19   2 21
+  3 24   3 23
+}
+
+
+finish_test
diff --git a/test/dbfuzz.c b/test/dbfuzz.c
new file mode 100644
index 0000000000000000000000000000000000000000..ca1c6ea2177f533670d6f79995d874f21e5af252
--- /dev/null
+++ b/test/dbfuzz.c
@@ -0,0 +1,754 @@
+/*
+** 2016-12-17
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** This program is designed for fuzz-testing SQLite database files.
+**
+** This program reads fuzzed database files from the disk files named
+** on the command-line.  Each database is loaded into an in-memory
+** filesystem so that the original database file is unmolested.
+**
+** The fuzzed database is then opened, and series of SQL statements
+** are run against the database to ensure that SQLite can safely handle
+** the fuzzed database.
+*/
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+#include <ctype.h>
+#define ISSPACE(X) isspace((unsigned char)(X))
+#define ISDIGIT(X) isdigit((unsigned char)(X))
+#include "sqlite3.h"
+#ifdef __unix__
+# include <signal.h>
+# include <unistd.h>
+#endif
+
+/*
+** Print sketchy documentation for this utility program
+*/
+static void showHelp(const char *zArgv0){
+  printf("Usage: %s [options] DATABASE ...\n", zArgv0);
+  printf(
+"Read databases into an in-memory filesystem.  Run test SQL as specified\n"
+"by command-line arguments or from\n"
+"\n"
+"    SELECT group_concat(sql) FROM autoexec;\n"
+"\n"
+"Options:\n"
+"  --help              Show this help text\n"
+"  -q|--quiet          Reduced output\n"
+"  --limit-mem N       Limit memory used by test SQLite instances to N bytes\n"
+"  --limit-vdbe        Panic if any test runs for more than 100,000 cycles\n"
+"  --no-lookaside      Disable the lookaside memory allocator\n"
+"  --timeout N         Timeout after N seconds.\n"
+"  --trace             Show the results of each SQL command\n"
+"  -v|--verbose        Increased output.  Repeat for more output.\n"
+  );
+  exit(0);
+}
+
+/*
+** Print an error message and quit.
+*/
+static void fatalError(const char *zFormat, ...){
+  va_list ap;
+  va_start(ap, zFormat);
+  vfprintf(stderr, zFormat, ap);
+  va_end(ap);
+  fprintf(stderr, "\n");
+  exit(1);
+}
+
+/*
+** Files in the virtual file system.
+*/
+typedef struct VFile VFile;
+typedef struct VHandle VHandle;
+struct VFile {
+  char *zFilename;      /* Filename. NULL for delete-on-close. From malloc() */
+  int sz;               /* Size of the file in bytes */
+  int nRef;             /* Number of references to this file */
+  unsigned char *a;     /* Content of the file.  From malloc() */
+};
+struct VHandle {
+  sqlite3_file base;    /* Base class.  Must be first */
+  VFile *pVFile;        /* The underlying file */
+};
+
+/*
+** Maximum number of files in the in-memory virtual filesystem.
+*/
+#define MX_FILE  10
+
+/*
+** Maximum allowed file size
+*/
+#define MX_FILE_SZ 1000000
+
+/*
+** All global variables are gathered into the "g" singleton.
+*/
+static struct GlobalVars {
+  VFile aFile[MX_FILE];            /* The virtual filesystem */
+} g;
+
+
+/*
+** Initialize the virtual file system.
+*/
+static void formatVfs(void){
+  int i;
+  for(i=0; i<MX_FILE; i++){
+    g.aFile[i].sz = -1;
+    g.aFile[i].zFilename = 0;
+    g.aFile[i].a = 0;
+    g.aFile[i].nRef = 0;
+  }
+}
+
+
+/*
+** Erase all information in the virtual file system.
+*/
+static void reformatVfs(void){
+  int i;
+  for(i=0; i<MX_FILE; i++){
+    if( g.aFile[i].sz<0 ) continue;
+    if( g.aFile[i].zFilename ){
+      free(g.aFile[i].zFilename);
+      g.aFile[i].zFilename = 0;
+    }
+    if( g.aFile[i].nRef>0 ){
+      fatalError("file %d still open.  nRef=%d", i, g.aFile[i].nRef);
+    }
+    g.aFile[i].sz = -1;
+    free(g.aFile[i].a);
+    g.aFile[i].a = 0;
+    g.aFile[i].nRef = 0;
+  }
+}
+
+/*
+** Find a VFile by name
+*/
+static VFile *findVFile(const char *zName){
+  int i;
+  if( zName==0 ) return 0;
+  for(i=0; i<MX_FILE; i++){
+    if( g.aFile[i].zFilename==0 ) continue;   
+    if( strcmp(g.aFile[i].zFilename, zName)==0 ) return &g.aFile[i];
+  }
+  return 0;
+}
+
+/*
+** Find a VFile called zName.  Initialize it to the content of
+** disk file zDiskFile.
+**
+** Return NULL if the filesystem is full.
+*/
+static VFile *createVFile(const char *zName, const char *zDiskFile){
+  VFile *pNew = findVFile(zName);
+  int i;
+  FILE *in = 0;
+  long sz = 0;
+
+  if( pNew ) return pNew;
+  for(i=0; i<MX_FILE && g.aFile[i].sz>=0; i++){}
+  if( i>=MX_FILE ) return 0;
+  if( zDiskFile ){
+    in = fopen(zDiskFile, "rb");
+    if( in==0 ) fatalError("no such file: \"%s\"", zDiskFile);
+    fseek(in, 0, SEEK_END);
+    sz = ftell(in);
+    rewind(in);
+  }
+  pNew = &g.aFile[i];
+  if( zName ){
+    int nName = (int)strlen(zName)+1;
+    pNew->zFilename = malloc(nName);
+    if( pNew->zFilename==0 ){
+      if( in ) fclose(in);
+      return 0;
+    }
+    memcpy(pNew->zFilename, zName, nName);
+  }else{
+    pNew->zFilename = 0;
+  }
+  pNew->nRef = 0;
+  pNew->sz = sz;
+  pNew->a = malloc(sz);
+  if( sz>0 ){
+    if( pNew->a==0 || fread(pNew->a, sz, 1, in)<1 ){
+      free(pNew->zFilename);
+      free(pNew->a);
+      pNew->a = 0;
+      pNew->zFilename = 0;
+      pNew->sz = -1;
+      pNew = 0;
+    }
+  }
+  if( in ) fclose(in);
+  return pNew;
+}
+
+/* Methods for the VHandle object
+*/
+static int inmemClose(sqlite3_file *pFile){
+  VHandle *p = (VHandle*)pFile;
+  VFile *pVFile = p->pVFile;
+  pVFile->nRef--;
+  if( pVFile->nRef==0 && pVFile->zFilename==0 ){
+    pVFile->sz = -1;
+    free(pVFile->a);
+    pVFile->a = 0;
+  }
+  return SQLITE_OK;
+}
+static int inmemRead(
+  sqlite3_file *pFile,   /* Read from this open file */
+  void *pData,           /* Store content in this buffer */
+  int iAmt,              /* Bytes of content */
+  sqlite3_int64 iOfst    /* Start reading here */
+){
+  VHandle *pHandle = (VHandle*)pFile;
+  VFile *pVFile = pHandle->pVFile;
+  if( iOfst<0 || iOfst>=pVFile->sz ){
+    memset(pData, 0, iAmt);
+    return SQLITE_IOERR_SHORT_READ;
+  }
+  if( iOfst+iAmt>pVFile->sz ){
+    memset(pData, 0, iAmt);
+    iAmt = (int)(pVFile->sz - iOfst);
+    memcpy(pData, pVFile->a, iAmt);
+    return SQLITE_IOERR_SHORT_READ;
+  }
+  memcpy(pData, pVFile->a + iOfst, iAmt);
+  return SQLITE_OK;
+}
+static int inmemWrite(
+  sqlite3_file *pFile,   /* Write to this file */
+  const void *pData,     /* Content to write */
+  int iAmt,              /* bytes to write */
+  sqlite3_int64 iOfst    /* Start writing here */
+){
+  VHandle *pHandle = (VHandle*)pFile;
+  VFile *pVFile = pHandle->pVFile;
+  if( iOfst+iAmt > pVFile->sz ){
+    unsigned char *aNew;
+    if( iOfst+iAmt >= MX_FILE_SZ ){
+      return SQLITE_FULL;
+    }
+    aNew = realloc(pVFile->a, (int)(iOfst+iAmt));
+    if( aNew==0 ){
+      return SQLITE_FULL;
+    }
+    pVFile->a = aNew;
+    if( iOfst > pVFile->sz ){
+      memset(pVFile->a + pVFile->sz, 0, (int)(iOfst - pVFile->sz));
+    }
+    pVFile->sz = (int)(iOfst + iAmt);
+  }
+  memcpy(pVFile->a + iOfst, pData, iAmt);
+  return SQLITE_OK;
+}
+static int inmemTruncate(sqlite3_file *pFile, sqlite3_int64 iSize){
+  VHandle *pHandle = (VHandle*)pFile;
+  VFile *pVFile = pHandle->pVFile;
+  if( pVFile->sz>iSize && iSize>=0 ) pVFile->sz = (int)iSize;
+  return SQLITE_OK;
+}
+static int inmemSync(sqlite3_file *pFile, int flags){
+  return SQLITE_OK;
+}
+static int inmemFileSize(sqlite3_file *pFile, sqlite3_int64 *pSize){
+  *pSize = ((VHandle*)pFile)->pVFile->sz;
+  return SQLITE_OK;
+}
+static int inmemLock(sqlite3_file *pFile, int type){
+  return SQLITE_OK;
+}
+static int inmemUnlock(sqlite3_file *pFile, int type){
+  return SQLITE_OK;
+}
+static int inmemCheckReservedLock(sqlite3_file *pFile, int *pOut){
+  *pOut = 0;
+  return SQLITE_OK;
+}
+static int inmemFileControl(sqlite3_file *pFile, int op, void *pArg){
+  return SQLITE_NOTFOUND;
+}
+static int inmemSectorSize(sqlite3_file *pFile){
+  return 512;
+}
+static int inmemDeviceCharacteristics(sqlite3_file *pFile){
+  return
+      SQLITE_IOCAP_SAFE_APPEND |
+      SQLITE_IOCAP_UNDELETABLE_WHEN_OPEN |
+      SQLITE_IOCAP_POWERSAFE_OVERWRITE;
+}
+
+
+/* Method table for VHandle
+*/
+static sqlite3_io_methods VHandleMethods = {
+  /* iVersion    */  1,
+  /* xClose      */  inmemClose,
+  /* xRead       */  inmemRead,
+  /* xWrite      */  inmemWrite,
+  /* xTruncate   */  inmemTruncate,
+  /* xSync       */  inmemSync,
+  /* xFileSize   */  inmemFileSize,
+  /* xLock       */  inmemLock,
+  /* xUnlock     */  inmemUnlock,
+  /* xCheck...   */  inmemCheckReservedLock,
+  /* xFileCtrl   */  inmemFileControl,
+  /* xSectorSz   */  inmemSectorSize,
+  /* xDevchar    */  inmemDeviceCharacteristics,
+  /* xShmMap     */  0,
+  /* xShmLock    */  0,
+  /* xShmBarrier */  0,
+  /* xShmUnmap   */  0,
+  /* xFetch      */  0,
+  /* xUnfetch    */  0
+};
+
+/*
+** Open a new file in the inmem VFS.  All files are anonymous and are
+** delete-on-close.
+*/
+static int inmemOpen(
+  sqlite3_vfs *pVfs,
+  const char *zFilename,
+  sqlite3_file *pFile,
+  int openFlags,
+  int *pOutFlags
+){
+  VFile *pVFile = createVFile(zFilename, 0);
+  VHandle *pHandle = (VHandle*)pFile;
+  if( pVFile==0 ){
+    return SQLITE_FULL;
+  }
+  pHandle->pVFile = pVFile;
+  pVFile->nRef++;
+  pFile->pMethods = &VHandleMethods;
+  if( pOutFlags ) *pOutFlags = openFlags;
+  return SQLITE_OK;
+}
+
+/*
+** Delete a file by name
+*/
+static int inmemDelete(
+  sqlite3_vfs *pVfs,
+  const char *zFilename,
+  int syncdir
+){
+  VFile *pVFile = findVFile(zFilename);
+  if( pVFile==0 ) return SQLITE_OK;
+  if( pVFile->nRef==0 ){
+    free(pVFile->zFilename);
+    pVFile->zFilename = 0;
+    pVFile->sz = -1;
+    free(pVFile->a);
+    pVFile->a = 0;
+    return SQLITE_OK;
+  }
+  return SQLITE_IOERR_DELETE;
+}
+
+/* Check for the existance of a file
+*/
+static int inmemAccess(
+  sqlite3_vfs *pVfs,
+  const char *zFilename,
+  int flags,
+  int *pResOut
+){
+  VFile *pVFile = findVFile(zFilename);
+  *pResOut =  pVFile!=0;
+  return SQLITE_OK;
+}
+
+/* Get the canonical pathname for a file
+*/
+static int inmemFullPathname(
+  sqlite3_vfs *pVfs,
+  const char *zFilename,
+  int nOut,
+  char *zOut
+){
+  sqlite3_snprintf(nOut, zOut, "%s", zFilename);
+  return SQLITE_OK;
+}
+
+/*
+** Register the VFS that reads from the g.aFile[] set of files.
+*/
+static void inmemVfsRegister(void){
+  static sqlite3_vfs inmemVfs;
+  sqlite3_vfs *pDefault = sqlite3_vfs_find(0);
+  inmemVfs.iVersion = 3;
+  inmemVfs.szOsFile = sizeof(VHandle);
+  inmemVfs.mxPathname = 200;
+  inmemVfs.zName = "inmem";
+  inmemVfs.xOpen = inmemOpen;
+  inmemVfs.xDelete = inmemDelete;
+  inmemVfs.xAccess = inmemAccess;
+  inmemVfs.xFullPathname = inmemFullPathname;
+  inmemVfs.xRandomness = pDefault->xRandomness;
+  inmemVfs.xSleep = pDefault->xSleep;
+  inmemVfs.xCurrentTimeInt64 = pDefault->xCurrentTimeInt64;
+  sqlite3_vfs_register(&inmemVfs, 0);
+};
+
+/*
+** Timeout handler
+*/
+#ifdef __unix__
+static void timeoutHandler(int NotUsed){
+  (void)NotUsed;
+  fatalError("timeout\n");
+}
+#endif
+
+/*
+** Set the an alarm to go off after N seconds.  Disable the alarm
+** if N==0
+*/
+static void setAlarm(int N){
+#ifdef __unix__
+  alarm(N);
+#else
+  (void)N;
+#endif
+}
+/***************************************************************************
+** String accumulator object
+*/
+typedef struct Str Str;
+struct Str {
+  char *z;                /* The string.  Memory from malloc() */
+  sqlite3_uint64 n;       /* Bytes of input used */
+  sqlite3_uint64 nAlloc;  /* Bytes allocated to z[] */
+  int oomErr;             /* OOM error has been seen */
+};
+
+/* Initialize a Str object */
+static void StrInit(Str *p){
+  memset(p, 0, sizeof(*p));
+}
+
+/* Append text to the end of a Str object */
+static void StrAppend(Str *p, const char *z){
+  sqlite3_uint64 n = strlen(z);
+  if( p->n + n >= p->nAlloc ){
+    char *zNew;
+    sqlite3_uint64 nNew;
+    if( p->oomErr ) return;
+    nNew = p->nAlloc*2 + 100 + n;
+    zNew = sqlite3_realloc64(p->z, nNew);
+    if( zNew==0 ){
+      sqlite3_free(p->z);
+      memset(p, 0, sizeof(*p));
+      p->oomErr = 1;
+      return;
+    }
+    p->z = zNew;
+    p->nAlloc = nNew;
+  }
+  memcpy(p->z + p->n, z, (int)n);
+  p->n += n;
+  p->z[p->n] = 0;
+}
+
+/* Return the current string content */
+static char *StrStr(Str *p){
+ return p->z;
+}
+
+/* Free the string */
+static void StrFree(Str *p){
+  sqlite3_free(p->z);
+  StrInit(p);
+}
+
+/*
+** Return the value of a hexadecimal digit.  Return -1 if the input
+** is not a hex digit.
+*/
+static int hexDigitValue(char c){
+  if( c>='0' && c<='9' ) return c - '0';
+  if( c>='a' && c<='f' ) return c - 'a' + 10;
+  if( c>='A' && c<='F' ) return c - 'A' + 10;
+  return -1;
+}
+
+/*
+** Interpret zArg as an integer value, possibly with suffixes.
+*/
+static int integerValue(const char *zArg){
+  sqlite3_int64 v = 0;
+  static const struct { char *zSuffix; int iMult; } aMult[] = {
+    { "KiB", 1024 },
+    { "MiB", 1024*1024 },
+    { "GiB", 1024*1024*1024 },
+    { "KB",  1000 },
+    { "MB",  1000000 },
+    { "GB",  1000000000 },
+    { "K",   1000 },
+    { "M",   1000000 },
+    { "G",   1000000000 },
+  };
+  int i;
+  int isNeg = 0;
+  if( zArg[0]=='-' ){
+    isNeg = 1;
+    zArg++;
+  }else if( zArg[0]=='+' ){
+    zArg++;
+  }
+  if( zArg[0]=='0' && zArg[1]=='x' ){
+    int x;
+    zArg += 2;
+    while( (x = hexDigitValue(zArg[0]))>=0 ){
+      v = (v<<4) + x;
+      zArg++;
+    }
+  }else{
+    while( ISDIGIT(zArg[0]) ){
+      v = v*10 + zArg[0] - '0';
+      zArg++;
+    }
+  }
+  for(i=0; i<sizeof(aMult)/sizeof(aMult[0]); i++){
+    if( sqlite3_stricmp(aMult[i].zSuffix, zArg)==0 ){
+      v *= aMult[i].iMult;
+      break;
+    }
+  }
+  if( v>0x7fffffff ) fatalError("parameter too large - max 2147483648");
+  return (int)(isNeg? -v : v);
+}
+
+/*
+** This callback is invoked by sqlite3_log().
+*/
+static void sqlLog(void *pNotUsed, int iErrCode, const char *zMsg){
+  printf("LOG: (%d) %s\n", iErrCode, zMsg);
+  fflush(stdout);
+}
+
+#ifndef SQLITE_OMIT_PROGRESS_CALLBACK
+/*
+** This an SQL progress handler.  After an SQL statement has run for
+** many steps, we want to interrupt it.  This guards against infinite
+** loops from recursive common table expressions.
+**
+** *pVdbeLimitFlag is true if the --limit-vdbe command-line option is used.
+** In that case, hitting the progress handler is a fatal error.
+*/
+static int progressHandler(void *pVdbeLimitFlag){
+  if( *(int*)pVdbeLimitFlag ) fatalError("too many VDBE cycles");
+  return 1;
+}
+#endif
+
+/*
+** Allowed values for the runFlags parameter to runSql()
+*/
+#define SQL_TRACE  0x0001     /* Print each SQL statement as it is prepared */
+#define SQL_OUTPUT 0x0002     /* Show the SQL output */
+
+/*
+** Run multiple commands of SQL.  Similar to sqlite3_exec(), but does not
+** stop if an error is encountered.
+*/
+static void runSql(sqlite3 *db, const char *zSql, unsigned  runFlags){
+  const char *zMore;
+  const char *zEnd = &zSql[strlen(zSql)];
+  sqlite3_stmt *pStmt;
+
+  while( zSql && zSql[0] ){
+    zMore = 0;
+    pStmt = 0;
+    sqlite3_prepare_v2(db, zSql, -1, &pStmt, &zMore);
+    assert( zMore<=zEnd );
+    if( zMore==zSql ) break;
+    if( runFlags & SQL_TRACE ){
+      const char *z = zSql;
+      int n;
+      while( z<zMore && ISSPACE(z[0]) ) z++;
+      n = (int)(zMore - z);
+      while( n>0 && ISSPACE(z[n-1]) ) n--;
+      if( n==0 ) break;
+      if( pStmt==0 ){
+        printf("TRACE: %.*s (error: %s)\n", n, z, sqlite3_errmsg(db));
+      }else{
+        printf("TRACE: %.*s\n", n, z);
+      }
+    }
+    zSql = zMore;
+    if( pStmt ){
+      if( (runFlags & SQL_OUTPUT)==0 ){
+        while( SQLITE_ROW==sqlite3_step(pStmt) ){}
+      }else{
+        int nCol = -1;
+        int nRow;
+        for(nRow=0; SQLITE_ROW==sqlite3_step(pStmt); nRow++){
+          int i;
+          if( nCol<0 ){
+            nCol = sqlite3_column_count(pStmt);
+          }
+          for(i=0; i<nCol; i++){
+            int eType = sqlite3_column_type(pStmt,i);
+            printf("ROW[%d].%s = ", nRow, sqlite3_column_name(pStmt,i));
+            switch( eType ){
+              case SQLITE_NULL: {
+                printf("NULL\n");
+                break;
+              }
+              case SQLITE_INTEGER: {
+                printf("INT %s\n", sqlite3_column_text(pStmt,i));
+                break;
+              }
+              case SQLITE_FLOAT: {
+                printf("FLOAT %s\n", sqlite3_column_text(pStmt,i));
+                break;
+              }
+              case SQLITE_TEXT: {
+                printf("TEXT [%s]\n", sqlite3_column_text(pStmt,i));
+                break;
+              }
+              case SQLITE_BLOB: {
+                printf("BLOB (%d bytes)\n", sqlite3_column_bytes(pStmt,i));
+                break;
+              }
+            }
+          }
+        }
+      }         
+      sqlite3_finalize(pStmt);
+    }
+  }
+}
+
+int main(int argc, char **argv){
+  int i;                 /* Loop counter */
+  int nDb = 0;           /* Number of databases to fuzz */
+  char **azDb = 0;       /* Names of the databases (limit: 20) */
+  int verboseFlag = 0;   /* True for extra output */
+  int noLookaside = 0;   /* Disable lookaside if true */
+  int vdbeLimitFlag = 0; /* Stop after 100,000 VDBE ops */
+  int nHeap = 0;         /* True for fixed heap size */
+  int iTimeout = 0;      /* Timeout delay in seconds */
+  int rc;                /* Result code from SQLite3 API calls */
+  sqlite3 *db;           /* The database connection */
+  sqlite3_stmt *pStmt;   /* A single SQL statement */
+  Str sql;               /* SQL to run */
+  unsigned runFlags = 0; /* Flags passed to runSql */
+
+  for(i=1; i<argc; i++){
+    char *z = argv[i];
+    if( z[0]!='-' ){
+      azDb = realloc(azDb, sizeof(azDb[0])*(nDb+1));
+      if( azDb==0 ) fatalError("out of memory");
+      azDb[nDb++] = z;
+      continue;
+    }
+    z++;
+    if( z[0]=='-' ) z++;
+    if( strcmp(z, "help")==0 ){
+      showHelp(argv[0]);
+    }else if( strcmp(z, "limit-mem")==0 ){
+      if( i==argc-1 ) fatalError("missing argument to %s", argv[i]);
+      nHeap = integerValue(argv[++i]);
+    }else if( strcmp(z, "no-lookaside")==0 ){
+      noLookaside = 1;
+    }else if( strcmp(z, "timeout")==0 ){
+      if( i==argc-1 ) fatalError("missing argument to %s", argv[i]);
+      iTimeout = integerValue(argv[++i]);
+    }else if( strcmp(z, "trace")==0 ){
+      runFlags |= SQL_OUTPUT|SQL_TRACE;
+    }else if( strcmp(z, "limit-vdbe")==0 ){
+      vdbeLimitFlag = 1;
+    }else if( strcmp(z, "v")==0 || strcmp(z, "verbose")==0 ){
+      verboseFlag = 1;
+      runFlags |= SQL_TRACE;
+    }else{
+      fatalError("unknown command-line option: \"%s\"\n", argv[i]);
+    }
+  }
+  if( nDb==0 ){
+    showHelp(argv[0]);
+  }
+  if( verboseFlag ){
+    sqlite3_config(SQLITE_CONFIG_LOG, sqlLog);
+  }
+  if( nHeap>0 ){
+    void *pHeap = malloc( nHeap );
+    if( pHeap==0 ) fatalError("cannot allocate %d-byte heap\n", nHeap);
+    rc = sqlite3_config(SQLITE_CONFIG_HEAP, pHeap, nHeap, 32);
+    if( rc ) fatalError("heap configuration failed: %d\n", rc);
+  }
+  if( noLookaside ){
+    sqlite3_config(SQLITE_CONFIG_LOOKASIDE, 0, 0);
+  }
+  inmemVfsRegister();
+  formatVfs();
+  StrInit(&sql);
+#ifdef __unix__
+  signal(SIGALRM, timeoutHandler);
+#endif
+  for(i=0; i<nDb; i++){
+    if( verboseFlag && nDb>1 ){
+      printf("DATABASE-FILE: %s\n", azDb[i]);
+      fflush(stdout);
+    }
+    if( iTimeout ) setAlarm(iTimeout);
+    createVFile("test.db", azDb[i]);
+    rc = sqlite3_open_v2("test.db", &db, SQLITE_OPEN_READWRITE, "inmem");
+    if( rc ){
+      printf("cannot open test.db for \"%s\"\n", azDb[i]);
+      reformatVfs();
+      continue;
+    }
+#ifndef SQLITE_OMIT_PROGRESS_CALLBACK
+    if( vdbeLimitFlag ){
+      sqlite3_progress_handler(db, 100000, progressHandler, &vdbeLimitFlag);
+    }
+#endif
+    rc = sqlite3_prepare_v2(db, "SELECT sql FROM autoexec", -1, &pStmt, 0);
+    if( rc==SQLITE_OK ){
+      while( SQLITE_ROW==sqlite3_step(pStmt) ){
+        StrAppend(&sql, (const char*)sqlite3_column_text(pStmt, 0));
+        StrAppend(&sql, "\n");
+      }
+    }
+    sqlite3_finalize(pStmt);
+    StrAppend(&sql, "PRAGMA integrity_check;\n");
+    runSql(db, StrStr(&sql), runFlags);
+    sqlite3_close(db);
+    reformatVfs();
+    StrFree(&sql);
+    if( sqlite3_memory_used()>0 ){
+      free(azDb);
+      reformatVfs();
+      fatalError("memory leak of %lld bytes", sqlite3_memory_used());
+    }
+  }
+  StrFree(&sql);
+  reformatVfs();
+  return 0;
+}
diff --git a/test/dbfuzz001.test b/test/dbfuzz001.test
new file mode 100644
index 0000000000000000000000000000000000000000..228dd16db6ccd1992e4ce0e02ae433cf56bb8268
--- /dev/null
+++ b/test/dbfuzz001.test
@@ -0,0 +1,397 @@
+# 2012-12-13
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test cases for corrupt database files.
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !deserialize {
+  finish_test
+  return
+}
+database_may_be_corrupt
+
+# In the following database file, there is 384 bytes of free space
+# on page 8 that does not appear on the freeblock list.
+#
+do_test dbfuzz001-100 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+    | size 5632 pagesize 512 filename c4.db
+    | page 1 offset 0
+    |      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+    |     16: 02 00 01 01 00 40 20 20 00 00 00 02 00 00 00 0b   .....@  ........
+    |     32: 00 00 00 06 00 00 00 01 00 00 00 28 00 00 00 04   ...........(....
+    |     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+    |     80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 02   ................
+    |     96: 00 2e 30 38 0d 00 00 00 06 01 06 00 01 da 01 b0   ..08............
+    |    112: 01 56 01 86 01 2a 01 06 00 00 00 00 00 00 00 00   .V...*..........
+    |    256: 00 00 00 00 00 00 22 07 06 17 11 11 01 31 74 61   ......"......1ta
+    |    272: 62 6c 65 74 34 74 34 07 43 52 45 41 54 45 20 54   blet4t4.CREATE T
+    |    288: 41 42 4c 45 20 74 34 28 78 29 2a 06 06 17 13 11   ABLE t4(x)*.....
+    |    304: 01 3f 69 6e 64 65 78 00 00 00 00 00 00 00 00 00   .?index.........
+    |    336: 20 74 33 28 78 29 2e 04 06 17 15 11 01 45 69 6e    t3(x).......Ein
+    |    352: 64 65 78 74 32 63 64 74 32 05 43 52 45 41 54 45   dext2cdt2.CREATE
+    |    368: 20 49 4e 44 45 58 20 74 32 63 64 20 4f 4e 20 74    INDEX t2cd ON t
+    |    384: 32 28 63 2c 64 29 28 05 06 17 11 11 01 3d 74 61   2(c,d)(......=ta
+    |    400: 62 6c 65 74 33 74 33 04 43 52 45 41 54 45 20 54   blet3t3.CREATE T
+    |    416: 41 42 4c 45 20 74 33 28 63 2c 78 2c 65 2c 66 29   ABLE t3(c,x,e,f)
+    |    432: 28 02 06 17 11 11 01 3d 74 61 62 6c 65 74 32 74   (......=tablet2t
+    |    448: 32 03 43 52 45 41 54 45 20 54 41 42 4c 45 20 74   2.CREATE TABLE t
+    |    464: 32 28 63 2c 64 2c 65 2c 66 29 24 01 06 17 11 11   2(c,d,e,f)$.....
+    |    480: 01 35 74 61 62 6c 65 74 31 74 31 02 43 52 45 41   .5tablet1t1.CREA
+    |    496: 54 45 20 54 41 42 4c 45 20 74 31 28 61 2c 62 29   TE TABLE t1(a,b)
+    | page 2 offset 512
+    |      0: 0d 00 00 00 00 02 00 00 00 00 00 00 00 00 00 00   ................
+    | page 3 offset 1024
+    |      0: 0d 00 00 00 00 02 00 00 00 00 00 00 00 00 00 00   ................
+    | page 4 offset 1536
+    |      0: 05 00 00 00 03 01 f1 00 00 00 00 0b 01 fb 01 f6   ................
+    |     16: 01 f1 00 16 00 00 09 06 05 01 01 01 01 04 04 03   ................
+    |     32: 03 07 05 05 01 01 09 09 02 02 19 04 05 17 17 17   ................
+    |     48: 17 73 65 76 65 6e 65 69 67 68 74 65 69 67 68 74   .seveneighteight
+    |     64: 73 65 76 65 6e 25 03 05 07 07 07 07 40 14 00 00   seven%......@...
+    |     80: 00 00 00 00 40 18 00 00 00 00 00 00 40 18 00 00   ....@.......@...
+    |     96: 00 00 00 00 40 14 00 00 00 00 00 00 09 02 05 01   ....@...........
+    |    112: 01 01 01 03 04 04 03 07 01 05 09 01 01 09 02 02   ................
+    |    352: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 1a   ................
+    |    496: 00 00 00 00 0a 3e 00 00 00 09 21 00 00 00 08 06   .....>....!.....
+    | page 5 offset 2048
+    |      0: 0a 00 00 00 00 02 00 00 00 00 00 00 00 00 00 00   ................
+    | page 7 offset 3072
+    |      0: 0d 00 00 00 08 01 c2 00 01 fb 01 f6 01 f1 01 ec   ................
+    |     16: 01 e0 01 d4 01 cb 01 c2 00 00 00 00 00 00 00 00   ................
+    |     96: 00 00 00 00 13 00 00 00 00 00 00 00 00 00 00 00   ................
+    |    224: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 02   ................
+    |    288: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 03   ................
+    |    448: 00 00 07 08 02 17 65 69 67 68 74 07 07 02 17 65   ......eight....e
+    |    464: 69 67 68 74 0a 06 02 07 40 18 00 00 00 00 00 00   ight....@.......
+    |    480: 0a 05 02 07 40 18 00 00 00 00 00 00 03 04 02 01   ....@...........
+    |    496: 04 03 03 02 01 04 03 02 02 01 02 03 01 02 01 02   ................
+    | page 8 offset 3584
+    |      0: 0d 00 21 00 01 00 16 00 00 16 00 16 00 16 00 16   ..!.............
+    |     16: 00 16 00 16 00 00 09 06 05 01 01 01 01 04 04 03   ................
+    |     32: 03 00 00 00 5f 01 09 09 02 02 00 00 00 56 17 17   ...._........V..
+    |     48: 17 73 65 76 65 6e 65 69 67 68 74 65 69 67 68 74   .seveneighteight
+    |     64: 73 65 76 65 6e 00 00 00 3b 07 07 07 40 14 00 00   seven...;...@...
+    |     80: 00 00 00 00 40 18 00 00 00 00 00 00 40 18 00 00   ....@.......@...
+    |     96: 00 00 00 00 40 14 00 00 00 00 00 00 00 00 00 14   ....@...........
+    |    112: 01 01 01 03 04 04 03 00 00 00 09 01 01 09 02 02   ................
+    |    352: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 1a   ................
+    | page 9 offset 4096
+    |      0: 0d 00 00 00 1b 00 47 00 01 d9 01 be 01 af 01 a0   ......G.........
+    |     16: 01 91 01 82 01 73 01 64 01 55 01 46 01 37 01 28   .....s.d.U.F.7.(
+    |     32: 01 19 01 0a 00 fb 00 ec 00 dd 00 ce 00 bf 00 b0   ................
+    |     48: 00 a1 00 92 00 83 00 74 00 65 00 56 00 47 00 00   .......t.e.V.G..
+    |     64: 00 00 00 00 00 00 00 0d 21 00 00 48 01 54 00 01   ........!..H.T..
+    |     80: f7 01 ec 01 c5 01 0d 20 00 00 48 01 54 00 01 f7   ....... ..H.T...
+    |     96: 01 ec 01 c5 01 0d 1f 00 00 48 01 54 00 01 f7 01   .........H.T....
+    |    112: ec 01 c5 01 0d 1e 00 00 48 01 54 00 01 f7 01 ec   ........H.T.....
+    |    128: 01 c5 01 0d 1d 00 00 48 01 54 00 01 f7 01 ec 01   .......H.T......
+    |    144: c5 01 0d 1c 00 00 48 01 54 00 01 f7 01 ec 01 c5   ......H.T.......
+    |    160: 01 0d 1b 00 00 48 01 54 00 01 f7 01 ec 01 c5 01   .....H.T........
+    |    176: 0d 1a 00 00 48 01 54 00 01 f7 01 ec 01 c5 01 0d   ....H.T.........
+    |    192: 19 00 00 48 01 54 00 01 f7 01 ec 01 c5 01 0d 18   ...H.T..........
+    |    208: 00 00 48 01 54 00 01 f7 01 ec 01 c5 01 0d 17 00   ..H.T...........
+    |    224: 00 48 01 54 00 01 f7 01 ec 01 c5 01 0d 16 00 00   .H.T............
+    |    240: 48 01 54 00 01 f7 01 ec 01 c5 01 0d 15 00 00 48   H.T............H
+    |    256: 01 54 00 01 f7 01 ec 01 c5 01 0d 14 00 00 48 01   .T............H.
+    |    272: 54 00 01 f7 01 ec 01 c5 01 0d 13 00 00 48 01 54   T............H.T
+    |    288: 00 01 f7 01 ec 01 c5 01 0d 12 00 00 48 01 54 00   ............H.T.
+    |    304: 01 f7 01 ec 01 c5 01 0d 11 00 00 48 01 54 00 01   ...........H.T..
+    |    320: f7 01 ec 01 c5 01 0d 10 00 00 48 01 54 00 01 f7   ..........H.T...
+    |    336: 01 ec 01 c5 01 0d 0f 00 00 48 01 54 00 01 f7 01   .........H.T....
+    |    352: ec 01 c5 01 0d 0e 00 00 48 01 54 00 01 f7 01 ec   ........H.T.....
+    |    368: 01 c5 01 0d 0d 00 00 48 01 54 00 01 f7 01 ec 01   .......H.T......
+    |    384: c5 01 0d 0c 00 00 48 01 54 00 01 f7 01 ec 01 c5   ......H.T.......
+    |    400: 01 0d 0b 00 00 48 01 54 00 01 f7 01 ec 01 c5 01   .....H.T........
+    |    416: 0d 0a 00 00 48 01 54 00 01 f7 01 ec 01 c5 01 0d   ....H.T.........
+    |    432: 09 00 00 48 01 54 00 01 f7 01 ec 01 c5 01 19 08   ...H.T..........
+    |    448: 05 17 17 17 17 65 69 67 68 74 65 69 67 68 74 73   .....eighteights
+    |    464: 65 76 65 6e 73 65 76 65 6e 25 07 05 07 07 07 07   evenseven%......
+    |    480: 40 18 00 00 00 00 00 00 40 18 00 00 00 00 00 00   @.......@.......
+    |    496: 40 14 00 00 00 00 00 00 40 14 00 00 00 00 00 00   @.......@.......
+    | page 10 offset 4608
+    |      0: 0d 00 00 00 1d 00 4d 00 01 f1 01 e2 01 d3 01 c4   ......M.........
+    |     16: 01 b5 01 a6 01 97 01 88 01 79 01 6a 01 5b 01 4c   .........y.j.[.L
+    |     32: 01 3d 01 2e 01 1f 01 10 01 01 00 f2 00 e3 00 d4   .=..............
+    |     48: 00 c5 00 b6 00 a7 00 98 00 89 00 7a 00 6b 00 5c   ...........z.k.\
+    |     64: 00 4d 00 00 00 00 00 00 00 00 00 00 00 0d 3e 00   .M............>.
+    |     80: 00 48 01 54 00 01 f7 01 ec 01 c5 01 0d 3d 00 00   .H.T.........=..
+    |     96: 48 01 54 00 01 f7 01 ec 01 c5 01 0d 3c 00 00 48   H.T.........<..H
+    |    112: 01 54 00 01 f7 01 ec 01 c5 01 0d 3b 00 00 48 01   .T.........;..H.
+    |    128: 54 00 01 f7 01 ec 01 c5 01 0d 3a 00 00 48 01 54   T.........:..H.T
+    |    144: 00 01 f7 01 ec 01 c5 01 0d 39 00 00 48 01 54 00   .........9..H.T.
+    |    160: 01 f7 01 ec 01 c5 01 0d 38 00 00 48 01 54 00 01   ........8..H.T..
+    |    176: f7 01 ec 01 c5 01 0d 37 00 00 48 01 54 00 01 f7   .......7..H.T...
+    |    192: 01 ec 01 c5 01 0d 36 00 00 48 01 54 00 01 f7 01   ......6..H.T....
+    |    208: ec 01 c5 01 0d 35 00 00 48 01 54 00 01 f7 01 ec   .....5..H.T.....
+    |    224: 01 c5 01 0d 34 00 00 48 01 54 00 01 f7 01 ec 01   ....4..H.T......
+    |    240: c5 01 0d 33 00 00 48 01 54 00 01 f7 01 ec 01 c5   ...3..H.T.......
+    |    256: 01 0d 32 00 00 48 01 54 00 01 f7 01 ec 01 c5 01   ..2..H.T........
+    |    272: 0d 31 00 00 48 01 54 00 01 f7 01 ec 01 c5 01 0d   .1..H.T.........
+    |    288: 30 00 00 48 01 54 00 01 f7 01 ec 01 c5 01 0d 2f   0..H.T........./
+    |    304: 00 00 48 01 54 00 01 f7 01 ec 01 c5 01 0d 2e 00   ..H.T...........
+    |    320: 00 48 01 54 00 01 f7 01 ec 01 c5 01 0d 2d 00 00   .H.T.........-..
+    |    336: 48 01 54 00 01 f7 01 ec 01 c5 01 0d 2c 00 00 48   H.T.........,..H
+    |    352: 01 54 00 01 f7 01 ec 01 c5 01 0d 2b 00 00 48 01   .T.........+..H.
+    |    368: 54 00 01 f7 01 ec 01 c5 01 0d 2a 00 00 48 01 54   T.........*..H.T
+    |    384: 00 01 f7 01 ec 01 c5 01 0d 29 00 00 48 01 54 00   .........)..H.T.
+    |    400: 01 f7 01 ec 01 c5 01 0d 28 00 00 48 01 54 00 01   ........(..H.T..
+    |    416: f7 01 ec 01 c5 01 0d 27 00 00 48 01 54 00 01 f7   .......'..H.T...
+    |    432: 01 ec 01 c5 01 0d 26 00 00 48 01 54 00 01 f7 01   ......&..H.T....
+    |    448: ec 01 c5 01 0d 25 00 00 48 01 54 00 01 f7 01 ec   .....%..H.T.....
+    |    464: 01 c5 01 0d 24 00 00 48 01 54 00 01 f7 01 ec 01   ....$..H.T......
+    |    480: c5 01 0d 23 00 00 48 01 54 00 01 f7 01 ec 01 c5   ...#..H.T.......
+    |    496: 01 0d 22 00 00 48 01 54 00 01 f7 01 ec 01 c5 01   .."..H.T........
+    | page 11 offset 5120
+    |      0: 0d 00 00 00 0a 01 6a 00 01 f1 01 e2 01 d3 01 c4   ......j.........
+    |     16: 01 b5 01 a6 01 97 01 88 01 79 01 6a 00 00 00 00   .........y.j....
+    |    352: 00 00 00 00 00 00 00 00 00 00 0d 48 00 00 48 01   ...........H..H.
+    |    368: 54 00 01 f7 01 ec 01 c5 01 0d 47 00 00 48 01 54   T.........G..H.T
+    |    384: 00 01 f7 01 ec 01 c5 01 0d 46 00 00 48 01 54 00   .........F..H.T.
+    |    400: 01 f7 01 ec 01 c5 01 0d 45 00 00 48 01 54 00 01   ........E..H.T..
+    |    416: f7 01 ec 01 c5 01 0d 44 00 00 48 01 54 00 01 f7   .......D..H.T...
+    |    432: 01 ec 01 c5 01 0d 43 00 00 48 01 54 00 01 f7 01   ......C..H.T....
+    |    448: ec 01 c5 01 0d 42 00 00 48 01 54 00 01 f7 01 ec   .....B..H.T.....
+    |    464: 01 c5 01 0d 41 00 00 48 01 54 00 01 f7 01 ec 01   ....A..H.T......
+    |    480: c5 01 0d 40 00 00 48 01 54 00 01 f7 01 ec 01 c5   ...@..H.T.......
+    |    496: 01 0d 3f 00 00 48 01 54 00 01 f7 01 ec 01 c5 01   ..?..H.T........
+    | end c4.db
+  }]
+} {}
+
+ifcapable !oversize_cell_check {
+  # Non SQLITE_ENABLE_OVERSIZE_CELL_CHECK builds:
+  do_test dbfuzz001-101a {
+    db eval {PRAGMA writable_schema=on; PRAGMA integrity_check}
+  } {/Fragmentation of 384 bytes reported as 0 on page 8/}
+} else {
+  # SQLITE_ENABLE_OVERSIZE_CELL_CHECK builds:
+  do_catchsql_test dbfuzz001-101b {
+    PRAGMA writable_schema=on; 
+    PRAGMA integrity_check;
+  } {1 {database disk image is malformed}}
+}
+
+# The DELETE query below deletes the very last cell from page 8.
+# Prior to a certain fix to sqlite3BtreeDelete() and because of the
+# corruption to the freeblock list on page 8, this would fail to
+# cause a rebalance operation, which would leave the btree in a weird
+# state that would lead to segfaults and or assertion faults.
+#
+do_execsql_test dbfuzz001-110 {
+  DELETE FROM t3 WHERE x IS NOT NULL AND +rowid=6;
+} {}
+
+# This is a dbfuzz2-generate test case that can cause a page with
+# pPage->nCell==0 to enter the balancer.
+#
+do_test dbfuzz001-200 {
+  db deserialize [decode_hexdb {
+    | size 3076 pagesize 512 filename c03.db
+    | page 1 offset 0
+    |      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+    |     16: 02 00 01 01 00 40 20 20 00 00 00 0c 00 00 00 07   .....@  ........
+    |     32: 00 00 00 00 00 00 00 00 00 00 00 08 00 00 00 04   ................
+    |     48: 00 00 00 00 00 00 00 03 e8 00 00 01 00 00 00 00   ................
+    |     80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0c   ................
+    |     96: 00 2e 2c 50 0d 00 00 00 06 01 06 00 01 da 01 b0   ..,P............
+    |    112: 01 56 01 86 01 2a 01 06 00 00 00 00 00 00 00 00   .V...*..........
+    |    128: 00 00 00 00 00 00 00 00 ef 00 00 00 00 00 00 00   ................
+    |    192: 00 7f 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+    |    224: 00 00 00 00 00 00 00 00 00 00 00 00 00 ff e9 00   ................
+    |    256: 00 00 00 00 00 00 22 07 06 17 11 11 01 31 74 61   ......"......1ta
+    |    272: 62 6c 65 74 34 74 34 07 43 52 45 41 54 45 20 54   blet4t4.CREATE T
+    |    288: 41 42 4c 45 20 74 34 28 78 29 2a 06 06 17 13 11   ABLE t4(x)*.....
+    |    304: 01 3f 69 6e 64 65 78 74 33 78 74 33 06 43 52 45   .?indext3xt3.CRE
+    |    320: 41 54 45 20 49 4e 44 45 58 20 74 33 64 20 4f 4e   ATE INDEX t3d ON
+    |    336: 20 74 33 28 78 29 2e 04 06 17 15 11 01 45 69 6e    t3(x).......Ein
+    |    352: 64 65 78 74 32 63 64 74 32 05 43 52 45 41 54 45   dext2cdt2.CREATE
+    |    368: 20 49 4e 44 45 58 20 74 32 63 64 20 4f 4e 20 74    INDEX t2cd ON t
+    |    384: 32 28 63 2c 64 29 28 05 06 17 11 11 01 3d 74 61   2(c,d)(......=ta
+    |    400: 62 6c 65 74 33 74 33 04 43 52 45 41 54 45 20 54   blet3t3.CREATE T
+    |    416: 41 42 4c 45 20 74 33 28 63 2c 78 2c 65 2c 66 29   ABLE t3(c,x,e,f)
+    |    432: 28 02 06 17 11 11 01 3d 74 61 62 6c 65 74 32 74   (......=tablet2t
+    |    448: 32 03 43 52 45 41 54 45 20 54 41 42 4c 45 20 74   2.CREATE TABLE t
+    |    464: 32 28 63 2c 64 2c 65 2c 66 29 24 01 06 17 11 11   2(c,d,e,f)$.....
+    |    480: 01 35 74 61 62 6c 65 74 31 74 31 02 43 52 45 41   .5tablet1t1.CREA
+    |    496: 54 45 20 54 41 42 4c 45 20 74 31 28 61 2c 62 29   TE TABLE t1(a,b)
+    | page 2 offset 512
+    |      0: 0d 00 00 00 04 01 cf 00 01 fa 01 f3 01 de 01 cf   ................
+    |    176: 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+    |    256: 00 00 14 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+    |    368: 00 00 00 00 00 00 00 00 00 00 00 00 1e 00 00 00   ................
+    |    416: 00 00 00 1b 00 00 00 00 04 00 00 00 00 00 00 00   ................
+    |    448: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0d   ................
+    |    464: 04 03 17 17 73 65 76 65 6e 65 69 67 68 74 13 03   ....seveneight..
+    |    480: 03 07 07 40 14 00 00 00 00 00 00 40 18 00 00 00   ...@.......@....
+    |    496: 00 00 00 05 02 03 01 01 03 04 04 01 03 09 01 02   ................
+    | page 3 offset 1024
+    |      0: 0d 00 00 00 08 01 54 00 01 f7 01 ec 01 c5 01 aa   ......T.........
+    |     16: 01 a1 01 96 01 6f 01 54 00 00 00 00 00 00 00 00   .....o.T........
+    |     32: 00 00 00 00 00 00 00 03 e8 00 00 00 00 00 00 00   ................
+    |    336: 00 00 00 00 19 08 05 16 17 17 17 65 69 67 68 74   ...........eight
+    |    352: 65 69 67 68 74 73 65 76 65 6e 73 65 76 ff ff ff   eightsevensev...
+    |    368: 0e 05 07 07 07 07 40 18 00 00 00 00 00 00 40 18   ......@.......@.
+    |    384: 00 00 00 00 00 00 40 14 00 00 00 00 00 00 40 14   ......@.......@.
+    |    400: 00 00 00 00 00 00 09 06 05 01 01 01 01 04 04 03   ................
+    |    416: 03 07 05 05 01 01 09 09 02 02 19 04 05 17 17 17   ................
+    |    432: 17 73 65 6f 65 6e 65 69 67 68 74 65 69 67 68 74   .seoeneighteight
+    |    448: 73 65 76 65 6e 25 03 05 07 07 07 07 40 14 00 00   seven%......@...
+    |    464: 00 00 00 00 40 18 00 00 00 00 00 00 40 18 00 00   ....@.......@...
+    |    480: 00 00 00 00 40 14 00 00 00 00 00 00 09 02 05 01   ....@...........
+    |    496: 01 01 01 03 04 04 03 07 01 05 09 01 01 09 02 02   ................
+    | page 4 offset 1536
+    |      0: 0d 00 00 00 00 00 10 00 00 00 00 00 00 00 00 00   ................
+    |    160: 00 00 00 ea 00 00 00 00 00 00 00 00 00 00 00 00   ................
+    |    336: 00 00 00 00 00 00 00 00 00 00 00 00 20 00 00 00   ............ ...
+    | page 5 offset 2048
+    |      0: 0a 00 00 00 08 01 96 00 01 fa 01 c4 01 f2 01 bc   ................
+    |     16: 01 dc 01 a6 01 96 01 cc 00 00 00 00 00 00 00 00   ................
+    |     48: 00 00 00 00 00 00 00 00 00 00 10 00 00 00 00 00   ................
+    |    288: 00 00 00 00 00 00 00 00 00 64 00 00 00 2b 00 00   .........d...+..
+    |    400: 00 00 00 00 00 00 0f 04 17 17 01 65 69 67 68 74   ...........eight
+    |    416: 65 69 6f 68 74 08 15 04 07 07 01 40 18 00 00 00   eioht......@....
+    |    432: 00 00 00 40 18 00 00 00 00 00 00 07 07 04 01 01   ...@............
+    |    448: 01 04 04 06 07 04 01 01 01 02 02 05 0f 04 17 17   ................
+    |    464: 01 73 65 76 65 6e 65 69 67 68 74 04 15 04 07 07   .seveneight.....
+    |    480: 01 40 14 00 00 00 00 00 00 40 18 00 00 00 00 00   .@.......@......
+    |    496: 00 03 07 04 01 01 01 03 04 02 05 04 09 01 09 02   ................
+    | page 6 offset 2560
+    |      0: 0a 00 00 00 00 02 00 00 00 00 00 00 00 0d 00 00   ................
+    |     16: 00 08 01 c2 00 01 fb 01 f6 01 f1 01 ec 01 e0 01   ................
+    |     32: d4 01 cb 01 c2 00 00 00 00 00 00 00 00 00 00 00   ................
+    |    160: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 04 00   ................
+    |    448: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 07   ................
+    |    464: 08 02 17 65 69 67 68 74 07 07 02 17 65 69 67 68   ...eight....eigh
+    |    480: 74 0a 06 02 07 40 18 00 00 00 00 00 00 0a 05 02   t....@..........
+    |    496: 07 40 18 00 04 02 01 04 03 03 02 01 04 03 02 02   .@..............
+    | end x/c03.db
+  }]
+  catchsql {INSERT INTO t3 SELECT * FROM t2;}
+} {1 {database disk image is malformed}}
+
+
+do_test dbfuzz001-310 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 3584 pagesize 512 filename x/c02.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 02 00 01 01 00 40 20 20 00 00 00 0c 00 00 00 07   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 08 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 04 00 00 00 01 00 00 00 00   ................
+|     80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0c   ................
+|     96: 00 2e 2c 50 0d 00 00 00 06 01 06 00 01 da 01 b0   ..,P............
+|    112: 01 56 01 86 01 2a 01 06 00 00 00 00 00 00 00 00   .V...*..........
+|    256: 00 00 00 00 00 00 22 07 06 17 11 11 01 31 74 61   ......"......1ta
+|    272: 62 6c 65 74 34 74 34 07 43 52 45 41 54 45 20 54   blet4t4.CREATE T
+|    288: 41 42 4c 45 20 74 34 28 78 29 2a 06 06 17 13 11   ABLE t4(x)*.....
+|    304: 01 3f 69 6e 64 65 78 74 33 78 74 33 05 43 52 45   .?indext3xt3.CRE
+|    320: 41 54 45 20 49 4e 44 45 58 20 74 33 78 20 4f 4e   ATE INDEX t3x ON
+|    336: 20 74 33 28 78 29 2e 04 06 17 15 11 01 45 69 6e    t3(x).......Ein
+|    352: 64 65 78 74 32 63 64 74 32 05 43 52 45 41 54 45   dext2cdt2.CREATE
+|    368: 20 49 4e 44 45 58 20 74 32 63 64 20 4f 4e 20 74    INDEX t2cd ON t
+|    384: 32 28 63 2c 64 29 28 05 06 17 11 11 01 3d 74 61   2(c,d)(......=ta
+|    400: 62 6c 65 74 33 74 33 07 43 52 45 41 54 45 20 54   blet3t3.CREATE T
+|    416: 41 42 4c 45 20 74 33 28 63 2c 78 2c 65 2c 66 29   ABLE t3(c,x,e,f)
+|    432: 28 02 06 17 11 11 01 3d 74 61 62 6c 65 74 32 74   (......=tablet2t
+|    448: 32 32 43 52 45 41 54 45 20 54 41 42 4c 45 20 74   22CREATE TABLE t
+|    464: 32 28 63 2c 64 2c 65 2c 66 29 24 01 06 17 11 11   2(c,d,e,f)$.....
+|    480: 01 35 74 61 62 6c 65 74 31 74 31 02 43 52 45 41   .5tablet1t1.CREA
+|    496: 54 45 20 54 41 42 4c 45 20 74 31 28 61 2c 62 29   TE TABLE t1(a,b)
+| page 2 offset 512
+|      0: 0d 00 00 00 04 01 cf 00 01 fa 01 f3 01 de 01 cf   ................
+|    160: 00 00 20 00 00 00 00 00 00 00 00 00 00 00 00 00   .. .............
+|    448: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0d   ................
+|    464: 04 03 17 17 73 65 76 65 6e 65 69 67 68 74 13 03   ....seveneight..
+|    480: 03 07 07 40 14 00 00 00 00 00 00 40 18 00 00 00   ...@.......@....
+|    496: 00 00 00 05 02 03 01 01 03 04 04 01 03 09 01 02   ................
+| page 3 offset 1024
+|      0: 0d 00 00 00 08 01 54 00 01 f7 01 ec 01 c5 01 aa   ......T.........
+|     16: 01 a1 01 96 01 6f 01 54 00 00 00 00 00 00 00 00   .....o.T........
+|    112: 00 00 dd 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|    336: 00 00 00 00 19 08 05 17 17 17 17 65 69 67 68 74   ...........eight
+|    352: 65 69 67 68 74 73 65 76 65 6e 73 65 76 65 6e 25   eightsevenseven%
+|    368: 07 05 07 07 07 07 40 18 00 00 00 00 00 00 40 18   ......@.......@.
+|    384: 00 00 00 00 00 00 40 14 00 00 00 00 00 00 40 14   ......@.......@.
+|    400: 00 00 00 00 00 00 09 06 05 01 01 01 01 04 04 03   ................
+|    416: 03 07 05 05 01 01 09 09 02 02 19 04 05 17 17 17   ................
+|    432: 17 73 65 76 65 6e 65 69 67 68 74 65 69 67 68 74   .seveneighteight
+|    448: 73 65 76 65 6e 25 03 05 07 07 07 07 40 14 00 00   seven%......@...
+|    464: 00 00 00 00 40 18 00 00 00 00 00 00 40 18 00 00   ....@.......@...
+|    480: 00 00 00 00 40 14 00 00 00 00 00 00 09 02 05 01   ....@...........
+|    496: 01 01 01 03 04 04 03 07 01 05 09 01 01 09 02 02   ................
+| page 4 offset 1536
+|      0: 0d 00 00 00 00 02 00 00 00 00 00 00 00 00 00 00   ................
+|    192: 00 00 00 00 00 00 7f 00 00 00 00 00 00 00 00 00   ................
+|    208: 00 e5 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+| page 5 offset 2048
+|      0: 0a 00 00 00 08 01 96 00 01 fa 01 c4 01 f2 01 bc   ................
+|     16: 01 dc 01 a6 01 96 01 cc 00 00 00 00 00 00 00 00   ................
+|    240: 00 00 00 00 00 00 00 00 00 00 00 00 00 0e 00 00   ................
+|    400: 00 00 00 00 00 00 0f 04 17 07 01 65 69 67 68 74   ...........eight
+|    416: 65 69 67 68 74 08 15 04 07 07 01 40 18 00 00 00   eight......@....
+|    432: 00 00 00 40 18 00 00 00 00 00 00 07 07 04 01 01   ...@............
+|    448: 01 04 04 06 07 04 01 01 01 02 02 05 0f 04 17 17   ................
+|    464: 01 73 65 76 65 6e 65 69 67 68 74 04 15 04 07 07   .seveneight.....
+|    480: 01 40 14 00 00 00 00 00 00 40 18 00 00 00 00 00   .@.......@......
+|    496: 00 03 07 04 01 01 01 03 04 02 05 04 09 01 09 02   ................
+| page 6 offset 2560
+|      0: 0a 00 00 00 00 02 00 00 00 00 00 00 00 00 00 00   ................
+|    464: 00 00 00 00 00 00 00 00 00 00 7f 00 00 00 00 00   ................
+| page 7 offset 3072
+|      0: 0d 00 00 00 08 01 c2 00 01 fb 01 f6 01 f1 01 ec   ................
+|     16: 01 e0 01 d4 01 cb 01 c2 00 00 00 00 00 00 00 00   ................
+|    448: 00 00 07 08 02 17 65 69 67 68 74 07 07 02 17 65   ......eight....e
+|    464: 69 67 68 74 0a 06 02 07 40 18 00 00 00 00 00 00   ight....@.......
+|    480: 0a 05 02 07 40 18 00 00 00 00 00 00 03 04 02 01   ....@...........
+|    496: 04 03 03 02 01 04 03 02 02 01 02 03 01 02 01 02   ................
+| end x/c02.db
+  }]
+} {}
+
+extra_schema_checks 0
+do_catchsql_test dbfuzz001-320 {
+  PRAGMA integrity_check;
+} {1 {database disk image is malformed}}
+
+do_catchsql_test dbfuzz001-330 {
+  DELETE FROM t3 WHERE x IN (SELECT x FROM t4);
+} {1 {database disk image is malformed}}
+extra_schema_checks 1
+
+#-------------------------------------------------------------------------
+reset_db
+
+do_execsql_test dbfuzz001-430 {
+  CREATE TABLE t1(a INTEGER, b INT, c DEFAULT 0);
+}
+
+do_execsql_test dbfuzz001-420 {
+  PRAGMA locking_mode=EXCLUSIVE;
+  PRAGMA journal_mode = memory;
+  INSERT INTO t1 VALUES(1,2,3);
+  PRAGMA journal_mode=PERSIST;
+} {exclusive memory persist}
+
+do_execsql_test dbfuzz001-430 {
+  INSERT INTO t1 VALUES(4, 5, 6);
+}
+
+do_execsql_test dbfuzz001-440 {
+  PRAGMA journal_mode=MEMORY;
+  INSERT INTO t1 VALUES(7, 8, 9);
+} {memory}
+
+finish_test
diff --git a/test/dbfuzz2-seed1.db b/test/dbfuzz2-seed1.db
new file mode 100644
index 0000000000000000000000000000000000000000..17f0550d61626eef82b17461866eb43d5500980a
Binary files /dev/null and b/test/dbfuzz2-seed1.db differ
diff --git a/test/dbfuzz2.c b/test/dbfuzz2.c
new file mode 100644
index 0000000000000000000000000000000000000000..f0062915df067b208aa739a309d4c6d64c5f57ad
--- /dev/null
+++ b/test/dbfuzz2.c
@@ -0,0 +1,402 @@
+/*
+** 2018-10-26
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** This program is designed for fuzz-testing SQLite database files using
+** the -fsanitize=fuzzer option of clang.
+**
+** The -fsanitize=fuzzer option causes a main() to be inserted automatically.
+** That main() invokes LLVMFuzzerTestOneInput(D,S) to be invoked repeatedly.
+** Each D is a fuzzed database file.  The code in this file runs various
+** SQL statements against that database, trying to provoke a failure.
+**
+** For best results the seed database files should have these tables:
+**
+**   Table "t1" with columns "a" and "b"
+**   Tables "t2" and "t3 with the same number of compatible columns
+**       "t3" should have a column names "x"
+**   Table "t4" with a column "x" that is compatible with t3.x.
+**
+** Any of these tables can be virtual tables, for example FTS or RTree tables.
+**
+** To run this test:
+**
+**     mkdir dir
+**     cp dbfuzz2-seed*.db dir
+**     clang-6.0 -I. -g -O1 -fsanitize=fuzzer -DTHREADSAFE=0 \
+**       -DSQLITE_ENABLE_DBSTAT_VTAB dbfuzz2.c sqlite3.c -ldl
+**     ./a.out dir
+*/
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+#include <ctype.h>
+#include <stdint.h>
+#ifndef _WIN32
+#include <sys/time.h>
+#include <sys/resource.h>
+#endif
+#include "sqlite3.h"
+
+/*
+** This is the is the SQL that is run against the database.
+*/
+static const char *azSql[] = {
+  "PRAGMA integrity_check;",
+  "SELECT * FROM sqlite_schema;",
+  "SELECT sum(length(name)) FROM dbstat;",
+  "UPDATE t1 SET b=a, a=b WHERE a<b;",
+  "ALTER TABLE t1 RENAME TO alkjalkjdfiiiwuer987lkjwer82mx97sf98788s9789s;",
+  "INSERT INTO t3 SELECT * FROM t2;",
+  "DELETE FROM t3 WHERE x IN (SELECT x FROM t4);",
+  "REINDEX;",
+  "DROP TABLE t3;",
+  "VACUUM;",
+};
+
+/* Output verbosity level.  0 means complete silence */
+int eVerbosity = 0;
+
+/* True to activate PRAGMA vdbe_debug=on */
+static int bVdbeDebug = 0;
+
+/* Maximum size of the in-memory database file */
+static sqlite3_int64 szMax = 104857600;
+
+/* Progress handler callback data */
+static int nCb = 0;                  /* Number of callbacks seen so far */
+static int mxCb = 250000;            /* Maximum allowed callbacks */
+
+/***** Copy/paste from ext/misc/memtrace.c ***************************/
+/* The original memory allocation routines */
+static sqlite3_mem_methods memtraceBase;
+static FILE *memtraceOut;
+
+/* Methods that trace memory allocations */
+static void *memtraceMalloc(int n){
+  if( memtraceOut ){
+    fprintf(memtraceOut, "MEMTRACE: allocate %d bytes\n", 
+            memtraceBase.xRoundup(n));
+  }
+  return memtraceBase.xMalloc(n);
+}
+static void memtraceFree(void *p){
+  if( p==0 ) return;
+  if( memtraceOut ){
+    fprintf(memtraceOut, "MEMTRACE: free %d bytes\n", memtraceBase.xSize(p));
+  }
+  memtraceBase.xFree(p);
+}
+static void *memtraceRealloc(void *p, int n){
+  if( p==0 ) return memtraceMalloc(n);
+  if( n==0 ){
+    memtraceFree(p);
+    return 0;
+  }
+  if( memtraceOut ){
+    fprintf(memtraceOut, "MEMTRACE: resize %d -> %d bytes\n",
+            memtraceBase.xSize(p), memtraceBase.xRoundup(n));
+  }
+  return memtraceBase.xRealloc(p, n);
+}
+static int memtraceSize(void *p){
+  return memtraceBase.xSize(p);
+}
+static int memtraceRoundup(int n){
+  return memtraceBase.xRoundup(n);
+}
+static int memtraceInit(void *p){
+  return memtraceBase.xInit(p);
+}
+static void memtraceShutdown(void *p){
+  memtraceBase.xShutdown(p);
+}
+
+/* The substitute memory allocator */
+static sqlite3_mem_methods ersaztMethods = {
+  memtraceMalloc,
+  memtraceFree,
+  memtraceRealloc,
+  memtraceSize,
+  memtraceRoundup,
+  memtraceInit,
+  memtraceShutdown
+};
+
+/* Begin tracing memory allocations to out. */
+int sqlite3MemTraceActivate(FILE *out){
+  int rc = SQLITE_OK;
+  if( memtraceBase.xMalloc==0 ){
+    rc = sqlite3_config(SQLITE_CONFIG_GETMALLOC, &memtraceBase);
+    if( rc==SQLITE_OK ){
+      rc = sqlite3_config(SQLITE_CONFIG_MALLOC, &ersaztMethods);
+    }
+  }
+  memtraceOut = out;
+  return rc;
+}
+
+/* Deactivate memory tracing */
+int sqlite3MemTraceDeactivate(void){
+  int rc = SQLITE_OK;
+  if( memtraceBase.xMalloc!=0 ){
+    rc = sqlite3_config(SQLITE_CONFIG_MALLOC, &memtraceBase);
+    if( rc==SQLITE_OK ){
+      memset(&memtraceBase, 0, sizeof(memtraceBase));
+    }
+  }
+  memtraceOut = 0;
+  return rc;
+}
+/***** End copy/paste from ext/misc/memtrace.c ***************************/
+
+/*
+** Progress handler callback
+**
+** Count the number of callbacks and cause an abort once the limit is
+** reached.
+*/
+static int progress_handler(void *pNotUsed){
+  nCb++;
+  if( nCb<mxCb ) return 0;
+  if( eVerbosity>=1 ){
+    printf("-- Progress limit of %d reached\n", mxCb);
+  }
+  return 1;
+}
+
+/* libFuzzer invokes this routine with fuzzed database files (in aData).
+** This routine run SQLite against the malformed database to see if it
+** can provoke a failure or malfunction.
+*/
+int LLVMFuzzerTestOneInput(const uint8_t *aData, size_t nByte){
+  unsigned char *a;
+  sqlite3 *db;
+  int rc;
+  int i;
+  sqlite3_int64 x;
+  char *zErr = 0;
+
+  if( eVerbosity>=1 ){
+    printf("************** nByte=%d ***************\n", (int)nByte);
+    fflush(stdout);
+  }
+  if( sqlite3_initialize() ) return 0;
+  rc = sqlite3_open(0, &db);
+  if( rc ) return 1;
+  a = sqlite3_malloc64(nByte+1);
+  if( a==0 ) return 1;
+  memcpy(a, aData, nByte);
+  sqlite3_deserialize(db, "main", a, nByte, nByte,
+        SQLITE_DESERIALIZE_RESIZEABLE |
+        SQLITE_DESERIALIZE_FREEONCLOSE);
+  x = szMax;
+#ifdef SQLITE_FCNTL_SIZE_LIMIT
+  sqlite3_file_control(db, "main", SQLITE_FCNTL_SIZE_LIMIT, &x);
+#endif
+  if( bVdbeDebug ){
+    sqlite3_exec(db, "PRAGMA vdbe_debug=ON", 0, 0, 0);
+  }
+  if( mxCb>0 ){
+    sqlite3_progress_handler(db, 10, progress_handler, 0);
+  }
+#ifdef SQLITE_TESTCTRL_PRNG_SEED
+  sqlite3_test_control(SQLITE_TESTCTRL_PRNG_SEED, 1, db);
+#endif
+  for(i=0; i<sizeof(azSql)/sizeof(azSql[0]); i++){
+    if( eVerbosity>=1 ){
+      printf("%s\n", azSql[i]);
+      fflush(stdout);
+    }
+    zErr = 0;
+    nCb = 0;
+    rc = sqlite3_exec(db, azSql[i], 0, 0, &zErr);
+    if( rc && eVerbosity>=1 ){
+      printf("-- rc=%d zErr=%s\n", rc, zErr);
+    }
+    sqlite3_free(zErr);
+  }
+  rc = sqlite3_close(db);
+  if( rc!=SQLITE_OK ){
+    fprintf(stdout, "sqlite3_close() returns %d\n", rc);
+  }
+  if( sqlite3_memory_used()!=0 ){
+    int nAlloc = 0;
+    int nNotUsed = 0;
+    sqlite3_status(SQLITE_STATUS_MALLOC_COUNT, &nAlloc, &nNotUsed, 0);
+    fprintf(stderr,"Memory leak: %lld bytes in %d allocations\n",
+            sqlite3_memory_used(), nAlloc);
+    exit(1);
+  }
+  return 0;
+}
+
+/*
+** Return the number of "v" characters in a string.  Return 0 if there
+** are any characters in the string other than "v".
+*/
+static int numberOfVChar(const char *z){
+  int N = 0;
+  while( z[0] && z[0]=='v' ){
+    z++;
+    N++;
+  }
+  return z[0]==0 ? N : 0;
+}
+
+/* libFuzzer invokes this routine once when the executable starts, to
+** process the command-line arguments.
+*/
+int LLVMFuzzerInitialize(int *pArgc, char ***pArgv){
+  int i, j, n;
+  int argc = *pArgc;
+  char **argv = *pArgv;
+  for(i=j=1; i<argc; i++){
+    char *z = argv[i];
+    if( z[0]=='-' ){
+      z++;
+      if( z[0]=='-' ) z++;
+      if( z[0]=='v' && (n = numberOfVChar(z))>0 ){
+        eVerbosity += n;
+        continue;
+      }
+      if( strcmp(z,"vdbe-debug")==0 ){
+        bVdbeDebug = 1;
+        continue;
+      }
+      if( strcmp(z,"limit")==0 ){
+        if( i+1==argc ){
+          fprintf(stderr, "missing argument to %s\n", argv[i]);
+          exit(1);
+        }
+        mxCb = strtol(argv[++i], 0, 0);
+        continue;
+      }
+      if( strcmp(z,"memtrace")==0 ){
+        sqlite3MemTraceActivate(stdout);
+        continue;
+      }
+      if( strcmp(z,"max-db-size")==0 ){
+        if( i+1==argc ){
+          fprintf(stderr, "missing argument to %s\n", argv[i]);
+          exit(1);
+        }
+        szMax = strtol(argv[++i], 0, 0);
+        continue;
+      }
+      if( strcmp(z, "lookaside")==0 ){
+        int sz, nSlot;
+        if( i+2>=argc ){
+          fprintf(stderr, 
+             "--lookaside requires two arguments: slot-size num-slots\n");
+          exit(1);
+        }
+        sz = atoi(argv[++i]);
+        nSlot = atoi(argv[++i]);
+        sqlite3_config(SQLITE_CONFIG_LOOKASIDE, sz, nSlot);
+        continue;
+      }
+#ifndef _WIN32
+      if( strcmp(z,"max-stack")==0
+       || strcmp(z,"max-data")==0
+       || strcmp(z,"max-as")==0
+      ){
+        struct rlimit x,y;
+        int resource = RLIMIT_STACK;
+        char *zType = "RLIMIT_STACK";
+        if( i+1==argc ){
+          fprintf(stderr, "missing argument to %s\n", argv[i]);
+          exit(1);
+        }
+        if( z[4]=='d' ){
+          resource = RLIMIT_DATA;
+          zType = "RLIMIT_DATA";
+        }
+        if( z[4]=='a' ){
+          resource = RLIMIT_AS;
+          zType = "RLIMIT_AS";
+        }
+        memset(&x,0,sizeof(x));
+        getrlimit(resource, &x);
+        y.rlim_cur = atoi(argv[++i]);
+        y.rlim_max = x.rlim_cur;
+        setrlimit(resource, &y);
+        memset(&y,0,sizeof(y));
+        getrlimit(resource, &y);
+        printf("%s changed from %d to %d\n", 
+               zType, (int)x.rlim_cur, (int)y.rlim_cur);
+        continue;
+      }
+#endif /* _WIN32 */
+    }
+    argv[j++] = argv[i];
+  }
+  argv[j] = 0;
+  *pArgc = j;
+  return 0;
+}
+
+#ifdef STANDALONE
+/*
+** Read an entire file into memory.  Space to hold the file comes
+** from malloc().
+*/
+static unsigned char *readFile(const char *zName, int *pnByte){
+  FILE *in = fopen(zName, "rb");
+  long nIn;
+  size_t nRead;
+  unsigned char *pBuf;
+  if( in==0 ) return 0;
+  fseek(in, 0, SEEK_END);
+  nIn = ftell(in);
+  rewind(in);
+  pBuf = malloc( nIn+1 );
+  if( pBuf==0 ){ fclose(in); return 0; }
+  nRead = fread(pBuf, nIn, 1, in);
+  fclose(in);
+  if( nRead!=1 ){
+    free(pBuf);
+    return 0;
+  }
+  pBuf[nIn] = 0;
+  if( pnByte ) *pnByte = nIn;
+  return pBuf;
+}
+#endif /* STANDALONE */
+
+#ifdef STANDALONE
+int main(int argc, char **argv){
+  int i;
+  LLVMFuzzerInitialize(&argc, &argv);
+  for(i=1; i<argc; i++){
+    unsigned char *pIn;
+    int nIn;
+    pIn = readFile(argv[i], &nIn);
+    if( pIn ){
+      LLVMFuzzerTestOneInput((const uint8_t*)pIn, (size_t)nIn);
+      free(pIn);
+    }
+  }
+#ifdef RUSAGE_SELF
+  if( eVerbosity>0 ){
+    struct rusage x;
+    printf("SQLite %s\n", sqlite3_sourceid());
+    memset(&x, 0, sizeof(x));
+    if( getrusage(RUSAGE_SELF, &x)==0 ){
+      printf("Maximum RSS = %ld KB\n", x.ru_maxrss);
+    }
+  }
+#endif
+  return 0;
+}
+#endif /*STANDALONE*/
diff --git a/test/dbpage.test b/test/dbpage.test
new file mode 100644
index 0000000000000000000000000000000000000000..0646a70b02d99e8abd38dc8bf35722394b40151f
--- /dev/null
+++ b/test/dbpage.test
@@ -0,0 +1,111 @@
+# 2017-10-11
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the sqlite_dbpage virtual table.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix dbpage
+
+ifcapable !vtab||!compound {
+  finish_test
+  return
+}
+
+sqlite3_db_config db DEFENSIVE 0
+do_test 100 {
+  execsql {
+    PRAGMA auto_vacuum=0;
+    PRAGMA page_size=4096;
+    PRAGMA journal_mode=WAL;
+  }
+  execsql { 
+    CREATE TABLE t1(a,b);
+    WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<100)
+      INSERT INTO t1(a,b) SELECT x, printf('%d-x%.*c',x,x,'x') FROM c;
+    PRAGMA integrity_check;
+  }
+} {ok}
+do_execsql_test 110 {
+  SELECT pgno, quote(substr(data,1,5)) FROM sqlite_dbpage('main') ORDER BY pgno;
+} {1 X'53514C6974' 2 X'0500000001' 3 X'0D0000004E' 4 X'0D00000016'}
+do_execsql_test 120 {
+  SELECT pgno, quote(substr(data,1,5)) FROM sqlite_dbpage WHERE pgno=2;
+} {2 X'0500000001'}
+do_execsql_test 130 {
+  SELECT pgno, quote(substr(data,1,5)) FROM sqlite_dbpage WHERE pgno=4;
+} {4 X'0D00000016'}
+do_execsql_test 140 {
+  SELECT pgno, quote(substr(data,1,5)) FROM sqlite_dbpage WHERE pgno=5;
+} {}
+do_execsql_test 150 {
+  SELECT pgno, quote(substr(data,1,5)) FROM sqlite_dbpage WHERE pgno=0;
+} {}
+do_execsql_test 160 {
+  ATTACH ':memory:' AS aux1;
+  PRAGMA aux1.page_size=4096;
+  CREATE TABLE aux1.t2(a,b,c);
+  INSERT INTO t2 VALUES(11,12,13);
+  SELECT pgno, quote(substr(data,1,5)) FROM sqlite_dbpage('aux1');
+} {1 X'53514C6974' 2 X'0D00000001'}
+do_execsql_test 170 {
+  CREATE TABLE aux1.x3(x,y,z);
+  INSERT INTO x3(x,y,z) VALUES(1,'main',1),(2,'aux1',1);
+  SELECT pgno, schema, substr(data,1,6)
+    FROM sqlite_dbpage, x3
+   WHERE sqlite_dbpage.schema=x3.y AND sqlite_dbpage.pgno=x3.z
+   ORDER BY x3.x;
+} {1 main SQLite 1 aux1 SQLite}
+
+do_execsql_test 200 {
+  CREATE TEMP TABLE saved_content(x);
+  INSERT INTO saved_content(x) SELECT data FROM sqlite_dbpage WHERE pgno=4;
+  UPDATE sqlite_dbpage SET data=zeroblob(4096) WHERE pgno=4;
+} {}
+do_catchsql_test 210 {
+  PRAGMA integrity_check;
+} {1 {database disk image is malformed}}
+do_execsql_test 220 {
+  SELECT pgno, quote(substr(data,1,5)) FROM sqlite_dbpage('main') ORDER BY pgno;
+} {1 X'53514C6974' 2 X'0500000001' 3 X'0D0000004E' 4 X'0000000000'}
+do_execsql_test 230 {
+  UPDATE sqlite_dbpage SET data=(SELECT x FROM saved_content) WHERE pgno=4;
+} {}
+do_catchsql_test 230 {
+  PRAGMA integrity_check;
+} {0 ok}
+do_execsql_test 240 {
+  DELETE FROM saved_content;
+  INSERT INTO saved_content(x) 
+     SELECT data FROM sqlite_dbpage WHERE schema='aux1' AND pgno=2;
+} {}
+do_execsql_test 241 {
+  UPDATE sqlite_dbpage SET data=zeroblob(4096) WHERE pgno=2 AND schema='aux1';
+} {}
+do_catchsql_test 250 {
+  PRAGMA aux1.integrity_check;
+} {1 {database disk image is malformed}}
+do_execsql_test 260 {
+  UPDATE sqlite_dbpage SET data=(SELECT x FROM saved_content)
+   WHERE pgno=2 AND schema='aux1';
+} {}
+do_catchsql_test 270 {
+  PRAGMA aux1.integrity_check;
+} {0 ok}
+
+db close
+sqlite3 db :memory:
+do_execsql_test 300 {
+  SELECT * FROM sqlite_temp_schema, sqlite_dbpage;
+} {}
+
+finish_test
diff --git a/test/dbpagefault.test b/test/dbpagefault.test
new file mode 100644
index 0000000000000000000000000000000000000000..f27741cba1084b7c25997cb7d12170d8e8471de3
--- /dev/null
+++ b/test/dbpagefault.test
@@ -0,0 +1,86 @@
+# 2022 July 06
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+source $testdir/malloc_common.tcl
+
+if {[permutation] == "inmemory_journal"} {
+  finish_test
+  return
+}
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+set testprefix dbpagefault
+
+faultsim_save_and_close
+do_faultsim_test 1 -prep {
+  faultsim_restore_and_reopen
+  execsql { ATTACH 'test.db2' AS aux; }
+} -body {
+  execsql { 
+    CREATE VIRTUAL TABLE t1 USING sqlite_dbpage();
+  }
+} -test {
+  execsql { PRAGMA journal_mode = off }
+  faultsim_test_result {0 {}} 
+}
+
+do_faultsim_test 2 -prep {
+  sqlite3 db "xyz.db" -vfs memdb
+  execsql { ATTACH 'test.db2' AS aux; }
+} -body {
+  execsql { 
+    CREATE VIRTUAL TABLE t1 USING sqlite_dbpage();
+    UPDATE t1 SET data=zeroblob(1024) WHERE pgno=1 AND schema='aux';
+  }
+} -test {
+  execsql { PRAGMA journal_mode = off }
+  faultsim_test_result {0 {}} {1 {no such schema}}  {1 {SQL logic error}} {1 {unable to open a temporary database file for storing temporary tables}}
+}
+
+reset_db
+do_execsql_test 3.0 {
+  CREATE TABLE x1(z, b);
+  CREATE TRIGGER BEFORE INSERT ON x1 BEGIN
+    DELETE FROM sqlite_dbpage WHERE pgno=100;
+    UPDATE sqlite_dbpage SET data=null WHERE pgno=100;
+  END;
+}
+
+# This test case no longer works, as it is no longer possible to use
+# virtual table sqlite_dbpage from within a trigger.
+#
+do_execsql_test 3.1 {
+  PRAGMA trusted_schema = 1;
+}
+do_catchsql_test 3.2 {
+  PRAGMA trusted_schema = 1;
+  INSERT INTO x1 DEFAULT VALUES;
+} {1 {unsafe use of virtual table "sqlite_dbpage"}}
+#do_faultsim_test 3 -prep {
+#  catch { db close }
+#  sqlite3 db test.db
+#  execsql { PRAGMA trusted_schema = 1 }
+#} -body {
+#  execsql { INSERT INTO x1 DEFAULT VALUES; }
+#} -test {
+#  faultsim_test_result {0 {}}
+#}
+
+
+finish_test
diff --git a/test/dbstatus.test b/test/dbstatus.test
new file mode 100644
index 0000000000000000000000000000000000000000..8d5d8349cf7aa6d486f09e25ad766987b11bdbbf
--- /dev/null
+++ b/test/dbstatus.test
@@ -0,0 +1,457 @@
+# 2010 March 10
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests for the sqlite3_db_status() function
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix dbstatus
+
+ifcapable !compound {
+  finish_test
+  return
+}
+
+# Memory statistics must be enabled for this test.
+db close
+sqlite3_shutdown
+sqlite3_config_memstatus 1
+sqlite3_config_uri 1
+sqlite3_initialize
+sqlite3 db test.db
+
+
+# Make sure sqlite3_db_config() and sqlite3_db_status are working.
+#
+unset -nocomplain PAGESZ
+unset -nocomplain BASESZ
+do_test dbstatus-1.1 {
+  db close
+  sqlite3 db :memory:
+  db eval {
+    CREATE TABLE t1(x);
+  }
+  set sz1 [lindex [sqlite3_db_status db SQLITE_DBSTATUS_CACHE_USED 0] 1]
+  db eval {
+    CREATE TABLE t2(y);
+  }
+  set sz2 [lindex [sqlite3_db_status db SQLITE_DBSTATUS_CACHE_USED 0] 1]
+  set ::PAGESZ [expr {$sz2-$sz1}]
+  set ::BASESZ [expr {$sz1-$::PAGESZ}]
+  expr {$::PAGESZ>1024 && $::PAGESZ<1300}
+} {1}
+do_test dbstatus-1.2 {
+  db eval {
+    INSERT INTO t1 VALUES(zeroblob(9000));
+  }
+  lindex [sqlite3_db_status db SQLITE_DBSTATUS_CACHE_USED 0] 1
+} [expr {$BASESZ + 10*$PAGESZ}]
+
+
+proc lookaside {db} {
+  expr { $::lookaside_buffer_size *
+    [lindex [sqlite3_db_status $db SQLITE_DBSTATUS_LOOKASIDE_USED 0] 1]
+  }
+}
+
+ifcapable stat4 {
+  set STAT3 1
+} else {
+  set STAT3 0
+}
+
+#---------------------------------------------------------------------------
+# Run the dbstatus-2 and dbstatus-3 tests with several of different
+# lookaside buffer sizes.
+#
+foreach ::lookaside_buffer_size {0 64 120} {
+  ifcapable malloc_usable_size break
+
+  # Do not run any of these tests if there is SQL configured to run
+  # as part of the [sqlite3] command. This prevents the script from
+  # configuring the size of the lookaside buffer after [sqlite3] has
+  # returned.
+  if {[presql] != ""} break
+
+  #-------------------------------------------------------------------------
+  # Tests for SQLITE_DBSTATUS_SCHEMA_USED.
+  #
+  # Each test in the following block works as follows. Each test uses a
+  # different database schema.
+  #
+  #   1. Open a connection to an empty database. Disable statement caching.
+  #
+  #   2. Execute the SQL to create the database schema. Measure the total 
+  #      heap and lookaside memory allocated by SQLite, and the memory 
+  #      allocated for the database schema according to sqlite3_db_status().
+  #
+  #   3. Drop all tables in the database schema. Measure the total memory 
+  #      and the schema memory again.
+  #
+  #   4. Repeat step 2.
+  #
+  #   5. Repeat step 3.
+  #
+  # Then test that:
+  #
+  #   a) The difference in schema memory quantities in steps 2 and 3 is the
+  #      same as the difference in total memory in steps 2 and 3.
+  #
+  #   b) Step 4 reports the same amount of schema and total memory used as
+  #      in step 2.
+  #
+  #   c) Step 5 reports the same amount of schema and total memory used as
+  #      in step 3.
+  #
+  foreach {tn schema} { 
+    1 { CREATE TABLE t1(a, b) }
+    2 { CREATE TABLE t1(a PRIMARY KEY, b REFERENCES t1, c UNIQUE) }
+    3 {
+      CREATE TABLE t1(a, b);
+      CREATE INDEX i1 ON t1(a, b);
+    }
+    4 {
+      CREATE TABLE t1(a, b);
+      CREATE TABLE t2(c, d);
+      CREATE TRIGGER AFTER INSERT ON t1 BEGIN
+        INSERT INTO t2 VALUES(new.a, new.b);
+        SELECT * FROM t1, t2 WHERE a=c AND b=d GROUP BY b HAVING a>5 ORDER BY a;
+      END;
+    }
+    5 {
+      CREATE TABLE t1(a, b);
+      CREATE TABLE t2(c, d);
+      CREATE VIEW v1 AS SELECT * FROM t1 UNION SELECT * FROM t2;
+    }
+    6k {
+      CREATE TABLE t1(a, b);
+      CREATE INDEX i1 ON t1(a);
+      CREATE INDEX i2 ON t1(a,b);
+      CREATE INDEX i3 ON t1(b,b);
+      INSERT INTO t1 VALUES(randomblob(20), randomblob(25));
+      INSERT INTO t1 SELECT randomblob(20), randomblob(25) FROM t1;
+      INSERT INTO t1 SELECT randomblob(20), randomblob(25) FROM t1;
+      INSERT INTO t1 SELECT randomblob(20), randomblob(25) FROM t1;
+      ANALYZE;
+    }
+    7 {
+      CREATE TABLE t1(a, b);
+      CREATE TABLE t2(c, d);
+      CREATE VIEW v1 AS 
+        SELECT * FROM t1 
+        UNION 
+        SELECT * FROM t2
+        UNION ALL
+        SELECT c||b, d||a FROM t2 LEFT OUTER JOIN t1 GROUP BY c, d
+        ORDER BY 1, 2
+      ;
+      CREATE TRIGGER tr1 INSTEAD OF INSERT ON v1 BEGIN
+        SELECT * FROM v1;
+        UPDATE t1 SET a=5, b=(SELECT c FROM t2);
+      END;
+      SELECT * FROM v1;
+    }
+    8x {
+      CREATE TABLE t1(a, b, UNIQUE(a, b));
+      CREATE VIRTUAL TABLE t2 USING echo(t1);
+    }
+  } {
+    set tn "$::lookaside_buffer_size-$tn"
+  
+    # Step 1.
+    db close
+    forcedelete test.db
+    sqlite3 db test.db
+    sqlite3_db_config_lookaside db 0 $::lookaside_buffer_size 500
+    db cache size 0
+
+    catch { register_echo_module db }
+    ifcapable !vtab { if {[string match *x $tn]} continue }
+  
+    # Step 2.
+    execsql $schema
+    set nAlloc1  [lindex [sqlite3_status SQLITE_STATUS_MEMORY_USED 0] 1]
+    incr nAlloc1 [lookaside db]
+    set nSchema1 [lindex [sqlite3_db_status db SQLITE_DBSTATUS_SCHEMA_USED 0] 1]
+  
+    # Step 3.
+    drop_all_tables
+    set nAlloc2  [lindex [sqlite3_status SQLITE_STATUS_MEMORY_USED 0] 1]
+    incr nAlloc2 [lookaside db]
+    set nSchema2 [lindex [sqlite3_db_status db SQLITE_DBSTATUS_SCHEMA_USED 0] 1]
+  
+    # Step 4.
+    execsql $schema
+    set nAlloc3  [lindex [sqlite3_status SQLITE_STATUS_MEMORY_USED 0] 1]
+    incr nAlloc3 [lookaside db]
+    set nSchema3 [lindex [sqlite3_db_status db SQLITE_DBSTATUS_SCHEMA_USED 0] 1]
+    
+    # Step 5.
+    drop_all_tables
+    set nAlloc4  [lindex [sqlite3_status SQLITE_STATUS_MEMORY_USED 0] 1]
+    incr nAlloc4 [lookaside db]
+    set nSchema4 [lindex [sqlite3_db_status db SQLITE_DBSTATUS_SCHEMA_USED 0] 1]
+    set nFree [expr {$nAlloc1-$nAlloc2}]
+    
+    # Tests for which the test name ends in an "k" report slightly less
+    # memory than is actually freed when all schema items are finalized.
+    # This is because memory allocated by KeyInfo objects is no longer
+    # counted as "schema memory".
+    #
+    # Tests for which the test name ends in an "x" report slightly less
+    # memory than is actually freed when all schema items are finalized.
+    # This is because memory allocated by virtual table implementations
+    # for any reason is not counted as "schema memory".
+    #
+    # Additionally, in auto-vacuum mode, dropping tables and indexes causes
+    # the page-cache to shrink. So the amount of memory freed is always
+    # much greater than just that reported by DBSTATUS_SCHEMA_USED in this
+    # case.
+    #
+    # Some of the memory used for sqlite_stat4 is unaccounted for by
+    # dbstatus.
+    #
+    # Finally, on osx the estimate of memory used by the schema may be
+    # slightly low. 
+    #
+    if {[string match *k $tn]
+         || [string match *x $tn] || $AUTOVACUUM
+         || ([string match *y $tn] && $STAT3)
+         || ($::tcl_platform(os) == "Darwin")
+    } {
+      do_test dbstatus-2.$tn.ax { expr {($nSchema1-$nSchema2)<=$nFree} } 1
+    } else {
+      do_test dbstatus-2.$tn.a { expr {$nSchema1-$nSchema2} } $nFree
+    }
+  
+    do_test dbstatus-2.$tn.b { list $nAlloc1 $nSchema1 } "$nAlloc3 $nSchema3"
+    do_test dbstatus-2.$tn.c { list $nAlloc2 $nSchema2 } "$nAlloc4 $nSchema4"
+  }
+  
+  #-------------------------------------------------------------------------
+  # Tests for SQLITE_DBSTATUS_STMT_USED.
+  #
+  # Each test in the following block works as follows. Each test uses a
+  # different database schema.
+  #
+  #   1. Open a connection to an empty database. Initialized the database
+  #      schema.
+  #
+  #   2. Prepare a bunch of SQL statements. Measure the total heap and 
+  #      lookaside memory allocated by SQLite, and the memory allocated 
+  #      for the prepared statements according to sqlite3_db_status().
+  #
+  #   3. Finalize all prepared statements. Measure the total memory 
+  #      and the prepared statement memory again.
+  #
+  #   4. Repeat step 2.
+  #
+  #   5. Repeat step 3.
+  #
+  # Then test that:
+  #
+  #   a) The difference in schema memory quantities in steps 2 and 3 is the
+  #      same as the difference in total memory in steps 2 and 3.
+  #
+  #   b) Step 4 reports the same amount of schema and total memory used as
+  #      in step 2.
+  #
+  #   c) Step 5 reports the same amount of schema and total memory used as
+  #      in step 3.
+  #
+  foreach {tn schema statements} { 
+    1 { CREATE TABLE t1(a, b) } {
+      SELECT * FROM t1;
+      INSERT INTO t1 VALUES(1, 2);
+      INSERT INTO t1 SELECT * FROM t1;
+      UPDATE t1 SET a=5;
+      DELETE FROM t1;
+    }
+    2 {
+      PRAGMA recursive_triggers = 1;
+      CREATE TABLE t1(a, b);
+      CREATE TRIGGER tr1 AFTER INSERT ON t1 WHEN (new.a>0) BEGIN
+        INSERT INTO t1 VALUES(new.a-1, new.b);
+      END;
+    } {
+      INSERT INTO t1 VALUES(5, 'x');
+    } 
+    3 {
+      PRAGMA recursive_triggers = 1;
+      CREATE TABLE t1(a, b);
+      CREATE TABLE t2(a, b);
+      CREATE TRIGGER tr1 AFTER INSERT ON t1 WHEN (new.a>0) BEGIN
+        INSERT INTO t2 VALUES(new.a-1, new.b);
+      END;
+      CREATE TRIGGER tr2 AFTER INSERT ON t1 WHEN (new.a>0) BEGIN
+        INSERT INTO t1 VALUES(new.a-1, new.b);
+      END;
+    } {
+      INSERT INTO t1 VALUES(10, 'x');
+    } 
+    4 {
+      CREATE TABLE t1(a, b);
+    } {
+      SELECT count(*) FROM t1 WHERE upper(a)='ABC';
+    }
+    5x {
+      CREATE TABLE t1(a, b UNIQUE);
+      CREATE VIRTUAL TABLE t2 USING echo(t1);
+    } {
+      SELECT count(*) FROM t2;
+      SELECT * FROM t2 WHERE b>5;
+      SELECT * FROM t2 WHERE b='abcdefg';
+    }
+  } {
+    set tn "$::lookaside_buffer_size-$tn"
+
+    # Step 1.
+    db close
+    forcedelete test.db
+    sqlite3 db test.db
+    sqlite3_db_config_lookaside db 0 $::lookaside_buffer_size 500
+    db cache size 1000
+
+    catch { register_echo_module db }
+    ifcapable !vtab { if {[string match *x $tn]} continue }
+  
+    execsql $schema
+    db cache flush
+  
+    # Step 2.
+    execsql $statements
+    set nAlloc1  [lindex [sqlite3_status SQLITE_STATUS_MEMORY_USED 0] 1]
+    incr nAlloc1 [lookaside db]
+    set nStmt1   [lindex [sqlite3_db_status db SQLITE_DBSTATUS_STMT_USED 0] 1]
+    execsql $statements
+  
+    # Step 3.
+    db cache flush
+    set nAlloc2  [lindex [sqlite3_status SQLITE_STATUS_MEMORY_USED 0] 1]
+    incr nAlloc2 [lookaside db]
+    set nStmt2   [lindex [sqlite3_db_status db SQLITE_DBSTATUS_STMT_USED 0] 1]
+    
+    # Step 3.
+    execsql $statements
+    set nAlloc3  [lindex [sqlite3_status SQLITE_STATUS_MEMORY_USED 0] 1]
+    incr nAlloc3 [lookaside db]
+    set nStmt3   [lindex [sqlite3_db_status db SQLITE_DBSTATUS_STMT_USED 0] 1]
+    execsql $statements
+  
+    # Step 4.
+    db cache flush
+    set nAlloc4  [lindex [sqlite3_status SQLITE_STATUS_MEMORY_USED 0] 1]
+    incr nAlloc4 [lookaside db]
+    set nStmt4 [lindex [sqlite3_db_status db SQLITE_DBSTATUS_STMT_USED 0] 1]
+  
+    set nFree [expr {$nAlloc1-$nAlloc2}]
+
+    do_test dbstatus-3.$tn.a { expr $nStmt2 } {0}
+
+    # Tests for which the test name ends in an "x" report slightly less
+    # memory than is actually freed when all statements are finalized.
+    # This is because a small amount of memory allocated by a virtual table
+    # implementation using sqlite3_mprintf() is technically considered
+    # external and so is not counted as "statement memory".
+    #
+#puts "$nStmt1 $nFree"
+    if {[string match *x $tn]} {
+      do_test dbstatus-3.$tn.bx { expr $nStmt1<=$nFree }  {1}
+    } else {
+      do_test dbstatus-3.$tn.b { expr $nStmt1==$nFree } {1}
+    }
+
+    do_test dbstatus-3.$tn.c { list $nAlloc1 $nStmt1 } [list $nAlloc3 $nStmt3]
+    do_test dbstatus-3.$tn.d { list $nAlloc2 $nStmt2 } [list $nAlloc4 $nStmt4]
+  }
+}
+
+#-------------------------------------------------------------------------
+# The following tests focus on DBSTATUS_CACHE_USED_SHARED
+#
+ifcapable shared_cache {
+  if {([permutation]=="memsys3"
+      || [permutation]=="memsys5"
+      || $::tcl_platform(os)=="Linux") && ![sqlite3 -has-codec]} {
+    proc do_cacheused_test {tn db res} {
+      set cu [sqlite3_db_status $db SQLITE_DBSTATUS_CACHE_USED 0]
+      set pcu [sqlite3_db_status $db SQLITE_DBSTATUS_CACHE_USED_SHARED 0]
+      set cu [lindex $cu 1]
+      set pcu [lindex $pcu 1]
+      uplevel [list do_test $tn [list list $cu $pcu] "#/$res/"]
+    }
+    reset_db
+    sqlite3 db file:test.db?cache=shared
+  
+    do_execsql_test 4.0 {
+      PRAGMA auto_vacuum=NONE;
+      CREATE TABLE t1(a, b, c);
+      INSERT INTO t1 VALUES(1, 2, 3);
+    }
+    do_cacheused_test 4.0.1 db { 4568 4568 }
+    do_execsql_test 4.1 {
+      CREATE TEMP TABLE tt(a, b, c);
+      INSERT INTO tt VALUES(1, 2, 3);
+    }
+    do_cacheused_test 4.1.1 db { 9000 9000 }
+  
+    sqlite3 db2 file:test.db?cache=shared
+    do_cacheused_test 4.2.1 db2 { 4568 2284 }
+    do_cacheused_test 4.2.2 db { 9000 6716 }
+    db close
+    do_cacheused_test 4.2.3 db2 { 4568 4568 }
+    sqlite3 db file:test.db?cache=shared
+    do_cacheused_test 4.2.4 db2 { 4568 2284 }
+    db2 close
+  }
+}
+
+#-------------------------------------------------------------------------
+# Test that passing an out-of-range value to sqlite3_stmt_status does
+# not cause a crash.
+reset_db
+do_execsql_test 5.0 {
+  CREATE TABLE t1(x, y);
+  INSERT INTO t1 VALUES(1, 2);
+  INSERT INTO t1 VALUES(3, 4);
+}
+
+do_test 5.1 {
+  set ::stmt [sqlite3_prepare db "SELECT * FROM t1" -1 dummy]
+  sqlite3_step $::stmt
+  sqlite3_step $::stmt
+  sqlite3_step $::stmt
+  sqlite3_reset $::stmt
+} {SQLITE_OK}
+
+ifcapable api_armor {
+  do_test 5.2 { sqlite3_stmt_status $::stmt -1 0 } 0
+}
+do_test 5.3 { sqlite3_stmt_status $::stmt  0 0 } 0
+do_test 5.4 { 
+  expr [sqlite3_stmt_status $::stmt 99 0]>0 
+} 1
+foreach {tn id res} {
+  1 SQLITE_STMTSTATUS_MEMUSED 1
+  2 SQLITE_STMTSTATUS_FULLSCAN_STEP 1
+  3 SQLITE_STMTSTATUS_SORT 0
+  4 SQLITE_STMTSTATUS_AUTOINDEX 0
+  5 SQLITE_STMTSTATUS_VM_STEP 1
+  6 SQLITE_STMTSTATUS_REPREPARE 0
+  7 SQLITE_STMTSTATUS_RUN 1
+} {
+if {$tn==2} breakpoint
+  do_test 5.5.$tn { expr [sqlite3_stmt_status $::stmt $id 0]>0 } $res
+}
+
+sqlite3_finalize $::stmt
+finish_test
diff --git a/test/dbstatus2.test b/test/dbstatus2.test
new file mode 100644
index 0000000000000000000000000000000000000000..5e9ea888a6b54ab67d9ad0883f7d47ba0e6e3c19
--- /dev/null
+++ b/test/dbstatus2.test
@@ -0,0 +1,115 @@
+# 2011 September 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests for the sqlite3_db_status() function
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+set ::testprefix dbstatus2
+
+do_execsql_test 1.0 {
+  PRAGMA page_size = 1024;
+  PRAGMA auto_vacuum = 0;
+
+  CREATE TABLE t1(a PRIMARY KEY, b);
+  INSERT INTO t1 VALUES(1, randomblob(600));
+  INSERT INTO t1 VALUES(2, randomblob(600));
+  INSERT INTO t1 VALUES(3, randomblob(600));
+}
+
+proc db_hit_miss {db {reset 0}} {
+  set nHit  [sqlite3_db_status $db CACHE_HIT $reset]
+  set nMiss [sqlite3_db_status $db CACHE_MISS $reset]
+  list $nHit $nMiss
+}
+
+proc db_write {db {reset 0}} {
+  sqlite3_db_status $db CACHE_WRITE $reset
+}
+
+proc db_spill {db {reset 0}} {
+  sqlite3_db_status $db CACHE_SPILL $reset
+}
+
+do_test 1.1 {
+  db close
+  sqlite3 db test.db
+  execsql { PRAGMA mmap_size = 0 }
+  expr {[file size test.db] / 1024}
+} 6
+
+do_test 1.2 {
+  execsql { SELECT b FROM t1 WHERE a=2 }
+  db_hit_miss db
+} {{0 2 0} {0 4 0}}
+
+do_test 1.3 { 
+  execsql { SELECT b FROM t1 WHERE a=2 }
+  db_hit_miss db
+} {{0 6 0} {0 4 0}}
+
+do_test 1.4 { 
+  execsql { SELECT b FROM t1 WHERE a=2 }
+  db_hit_miss db
+} {{0 10 0} {0 4 0}}
+
+do_test 1.5 { 
+  db_hit_miss db 1
+} {{0 10 0} {0 4 0}}
+
+do_test 1.6 { 
+  db_hit_miss db 0
+} {{0 0 0} {0 0 0}}
+
+do_test 1.7 {
+  set fd [db incrblob main t1 b 1]
+  fconfigure $fd -translation binary
+  set len [string length [read $fd]]
+  close $fd
+  set len
+} 600
+do_test 1.8 { sqlite3_db_status db CACHE_HIT  0 } {0 2 0}
+do_test 1.9 { sqlite3_db_status db CACHE_MISS 0 } {0 1 0}
+
+do_test 2.1 { db_write db } {0 0 0}
+do_test 2.2 { 
+  execsql { INSERT INTO t1 VALUES(4, randomblob(600)) }
+  db_write db
+} {0 4 0}
+do_test 2.3 { db_write db 1 } {0 4 0}
+do_test 2.4 { db_write db 0 } {0 0 0}
+do_test 2.5 { db_write db 1 } {0 0 0}
+
+if {[wal_is_capable]} {
+  do_test 2.6 { 
+    execsql { PRAGMA journal_mode = WAL }
+    db_write db 1
+  } {0 1 0}
+}
+do_test 2.7 { 
+  execsql { INSERT INTO t1 VALUES(5, randomblob(600)) }
+  db_write db
+} {0 4 0}
+do_test 2.8 { db_write db 1 } {0 4 0}
+do_test 2.9 { db_write db 0 } {0 0 0}
+
+do_test 3.0 { db_spill db 1 } {0 0 0}
+do_test 3.1 { db_spill db 0 } {0 0 0}
+do_execsql_test 3.2 {
+  PRAGMA journal_mode=DELETE;
+  PRAGMA cache_size=3;
+  UPDATE t1 SET b=randomblob(1000);
+} {delete}
+do_test 3.3 { db_spill db 0 } {0 8 0}
+ 
+finish_test
diff --git a/test/decimal.test b/test/decimal.test
new file mode 100644
index 0000000000000000000000000000000000000000..cf4e06ad929e86667fab65415e0437d7522a19ce
--- /dev/null
+++ b/test/decimal.test
@@ -0,0 +1,193 @@
+# 2017 December 9
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix decimal
+
+if {[catch {load_static_extension db decimal} error]} {
+  puts "Skipping decimal tests, hit load error: $error"
+  finish_test; return
+}
+
+do_execsql_test 1000 {
+  SELECT decimal(1);
+} {1}
+do_execsql_test 1010 {
+  SELECT decimal('1.0');
+} {1.0}
+do_execsql_test 1020 {
+  SELECT decimal('0001.0');
+} {1.0}
+do_execsql_test 1030 {
+  SELECT decimal('+0001.0');
+} {1.0}
+do_execsql_test 1040 {
+  SELECT decimal('-0001.0');
+} {-1.0}
+do_execsql_test 1050 {
+  SELECT decimal('1.0e72');
+} {1000000000000000000000000000000000000000000000000000000000000000000000000}
+#   123456789 123456789 123456789 123456789 123456789 123456789 123456789 123
+do_execsql_test 1060 {
+  SELECT decimal('1.0e-72');
+} {0.0000000000000000000000000000000000000000000000000000000000000000000000010}
+#    123456789 123456789 123456789 123456789 123456789 123456789 123456789 123
+do_execsql_test 1070 {
+  SELECT decimal('-123e-4');
+} {-0.0123}
+do_execsql_test 1080 {
+  SELECT decimal('+123e+4');
+} {1230000}
+do_execsql_test 1081 {
+  SELECT decimal_exp('+123e+4');
+} {+1.23e+06}
+
+
+do_execsql_test 2000 {
+  CREATE TABLE t1(seq INTEGER PRIMARY KEY, val TEXT);
+  INSERT INTO t1 VALUES
+    (1, '-9999e99'),
+    (2, '-9998.000e+99'),
+    (3, '-9999.0'),
+    (4, '-1'),
+    (5, '-9999e-20'),
+    (6, '0'),
+    (7, '1e-30'),
+    (8, '1e-29'),
+    (9, '1'),
+    (10,'1.00000000000000001'),
+    (11,'+1.00001'),
+    (12,'99e+99');
+  SELECT *, '|'
+    FROM t1 AS a, t1 AS b
+   WHERE a.seq<b.seq
+     AND decimal_cmp(a.val,b.val)>=0;
+} {}
+do_execsql_test 2010 {
+  SELECT *, '|'
+    FROM t1 AS a, t1 AS b
+   WHERE a.seq<>b.seq
+     AND decimal_cmp(a.val,b.val)==0;
+} {}
+do_execsql_test 2020 {
+  SELECT *, '|'
+    FROM t1 AS a, t1 AS b
+   WHERE a.seq>b.seq
+     AND decimal_cmp(a.val,b.val)<=0;
+} {}
+do_execsql_test 2030 {
+  SELECT seq FROM t1 ORDER BY val COLLATE decimal;
+} {1 2 3 4 5 6 7 8 9 10 11 12}
+do_execsql_test 2040 {
+  SELECT seq FROM t1 ORDER BY val COLLATE decimal DESC;
+} {12 11 10 9 8 7 6 5 4 3 2 1}
+
+do_execsql_test 3000 {
+  CREATE TABLE t3(seq INTEGER PRIMARY KEY, val TEXT);
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION SELECT x+1 FROM c WHERE x<10)
+    INSERT INTO t3(seq, val) SELECT x, x FROM c;
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION SELECT x+1 FROM c WHERE x<5)
+    INSERT INTO t3(seq, val) SELECT x+10, x*1000 FROM c;
+  SELECT decimal(val) FROM t3 ORDER BY seq;
+} {1 2 3 4 5 6 7 8 9 10 1000 2000 3000 4000 5000}
+do_execsql_test 3020 {
+  SELECT decimal_add(val,'0.5') FROM t3 WHERE seq>5 ORDER BY seq
+} {6.5 7.5 8.5 9.5 10.5 1000.5 2000.5 3000.5 4000.5 5000.5}
+do_execsql_test 3030 {
+  SELECT decimal_add(val,'-10') FROM t3 ORDER BY seq;
+} {-9 -8 -7 -6 -5 -4 -3 -2 -1 0 990 1990 2990 3990 4990}
+
+do_execsql_test 4000 {
+  SELECT decimal_sum(val) FROM t3;
+} {15055}
+do_execsql_test 4010 {
+  SELECT decimal_sum(decimal_add(val,val||'e+10')) FROM t3;
+} {150550000015055}
+do_execsql_test 4010 {
+  SELECT decimal_sum(decimal_add(val||'e+20',decimal_add(val,val||'e-20')))
+    FROM t3;
+} {1505500000000000000015055.00000000000000015055}
+
+do_execsql_test 5000 {
+  WITH RECURSIVE c(x,y,z) AS (
+    VALUES(0,'1','1')
+    UNION ALL
+    SELECT x+1, decimal_mul(y,'2'), decimal_mul(z,'0.5')
+      FROM c WHERE x<32
+  )
+  SELECT count(*) FROM c WHERE decimal_mul(y,z)='1';
+} {33}
+
+do_execsql_test 5100 {
+  SELECT decimal_mul('1234.00','2.00');
+} {2468.00}
+do_execsql_test 5101 {
+  SELECT decimal_mul('1234.00','2.0000');
+} {2468.00}
+do_execsql_test 5102 {
+  SELECT decimal_mul('1234.0000','2.000');
+} {2468.000}
+do_execsql_test 5103 {
+  SELECT decimal_mul('1234.0000','2');
+} {2468}
+
+if {[catch {load_static_extension db ieee754} error]} {
+  puts "Skipping ieee754 tests, hit load error: $error"
+  finish_test; return
+}
+
+do_execsql_test 6000 {
+  CREATE TABLE pow2(x INTEGER PRIMARY KEY, v TEXT);
+  WITH RECURSIVE c(x,v) AS (
+    VALUES(0,'1')
+    UNION ALL
+    SELECT x+1, decimal_mul(v,'2') FROM c WHERE x+1<=971
+  ) INSERT INTO pow2(x,v) SELECT x, v FROM c;
+  WITH RECURSIVE c(x,v) AS (
+    VALUES(-1,'0.5')
+    UNION ALL
+    SELECT x-1, decimal_mul(v,'0.5') FROM c WHERE x-1>=-1075
+  ) INSERT INTO pow2(x,v) SELECT x, v FROM c;
+} {}
+do_execsql_test 6010 {
+  WITH c(n) AS (SELECT ieee754_from_blob(x'0000000000000001'))
+SELECT decimal_mul(ieee754_mantissa(c.n),pow2.v)
+  FROM pow2, c WHERE pow2.x=ieee754_exponent(c.n);
+} {0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004940656458412465441765687928682213723650598026143247644255856825006755072702087518652998363616359923797965646954457177309266567103559397963987747960107818781263007131903114045278458171678489821036887186360569987307230500063874091535649843873124733972731696151400317153853980741262385655911710266585566867681870395603106249319452715914924553293054565444011274801297099995419319894090804165633245247571478690147267801593552386115501348035264934720193790268107107491703332226844753335720832431936092382893458368060106011506169809753078342277318329247904982524730776375927247874656084778203734469699533647017972677717585125660551199131504891101451037862738167250955837389733598993664809941164205702637090279242767544565229087538682506419718265533447265625}
+do_execsql_test 6011 {
+  WITH c(n) AS (SELECT ieee754_from_blob(x'0000000000000001'))
+SELECT decimal(c.n) FROM c;
+} {0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004940656458412465441765687928682213723650598026143247644255856825006755072702087518652998363616359923797965646954457177309266567103559397963987747960107818781263007131903114045278458171678489821036887186360569987307230500063874091535649843873124733972731696151400317153853980741262385655911710266585566867681870395603106249319452715914924553293054565444011274801297099995419319894090804165633245247571478690147267801593552386115501348035264934720193790268107107491703332226844753335720832431936092382893458368060106011506169809753078342277318329247904982524730776375927247874656084778203734469699533647017972677717585125660551199131504891101451037862738167250955837389733598993664809941164205702637090279242767544565229087538682506419718265533447265625}
+do_execsql_test 6020 {
+  WITH c(n) AS (SELECT ieee754_from_blob(x'7fefffffffffffff'))
+SELECT decimal_mul(ieee754_mantissa(c.n),pow2.v)
+  FROM pow2, c WHERE pow2.x=ieee754_exponent(c.n);
+} {179769313486231570814527423731704356798070567525844996598917476803157260780028538760589558632766878171540458953514382464234321326889464182768467546703537516986049910576551282076245490090389328944075868508455133942304583236903222948165808559332123348274797826204144723168738177180919299881250404026184124858368}
+
+do_execsql_test 6100 {
+  SELECT ieee754(ieee754_from_blob(x'0000000000000001'));
+} {ieee754(1,-1074)}
+do_execsql_test 6110 {
+  SELECT ieee754(ieee754_from_blob(x'7fefffffffffffff'));
+} {ieee754(9007199254740991,971)}
+do_execsql_test 6120 {
+  SELECT printf('%.8e',ieee754_from_blob(x'0000000000000001'));
+} {4.94065646e-324}
+do_execsql_test 6130 {
+  SELECT printf('%.8e',ieee754_from_blob(x'ffefffffffffffff'));
+} {-1.79769313e+308}
+
+
+
+
+finish_test
diff --git a/test/default.test b/test/default.test
new file mode 100644
index 0000000000000000000000000000000000000000..192b3d2ff364880982e3076ce00004a69f82f74f
--- /dev/null
+++ b/test/default.test
@@ -0,0 +1,144 @@
+# 2005 August 18
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing corner cases of the DEFAULT syntax
+# on table definitions.
+#
+# $Id: default.test,v 1.3 2009/02/19 14:39:25 danielk1977 Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable bloblit {
+  do_test default-1.1 {
+    execsql {
+      CREATE TABLE t1(
+        a INTEGER,
+        b BLOB DEFAULT x'6869'
+      );
+      INSERT INTO t1(a) VALUES(1);
+      SELECT * from t1;
+    }
+  } {1 hi}
+}
+do_test default-1.2 {
+  execsql {
+    CREATE TABLE t2(
+      x INTEGER,
+      y INTEGER DEFAULT NULL
+    );
+    INSERT INTO t2(x) VALUES(1);
+    SELECT * FROM t2;
+  }
+} {1 {}}
+do_test default-1.3 {
+  catchsql {
+    CREATE TABLE t3(
+      x INTEGER,
+      y INTEGER DEFAULT (max(x,5))
+    )
+  }
+} {1 {default value of column [y] is not constant}}
+
+ifcapable pragma {
+  do_test default-2.1 {
+    execsql {
+      CREATE TABLE t4(c DEFAULT 'abc');
+      PRAGMA table_info(t4);
+    }
+  } {0 c {} 0 'abc' 0}
+  do_test default-2.2 {
+    execsql {
+      INSERT INTO t4 DEFAULT VALUES;
+      PRAGMA table_info(t4);
+    }
+  } {0 c {} 0 'abc' 0}
+}
+
+do_execsql_test default-3.1 {
+  CREATE TABLE t3(
+    a INTEGER PRIMARY KEY AUTOINCREMENT,
+    b INT DEFAULT 12345 UNIQUE NOT NULL CHECK( b>=0 AND b<99999 ),
+    c VARCHAR(123,456) DEFAULT 'hello' NOT NULL ON CONFLICT REPLACE,
+    d REAL,
+    e FLOATING POINT(5,10) DEFAULT 4.36,
+    f NATIONAL CHARACTER(15) COLLATE RTRIM,
+    g LONG INTEGER DEFAULT( 3600*12 )
+  );
+  INSERT INTO t3 VALUES(null, 5, 'row1', '5.25', 'xyz', 321, '432');
+  SELECT a, typeof(a), b, typeof(b), c, typeof(c), 
+         d, typeof(d), e, typeof(e), f, typeof(f),
+         g, typeof(g) FROM t3;
+} {1 integer 5 integer row1 text 5.25 real xyz text 321 text 432 integer}
+do_execsql_test default-3.2 {
+  DELETE FROM t3;
+  INSERT INTO t3 DEFAULT VALUES;
+  SELECT * FROM t3;
+} {2 12345 hello {} 4.36 {} 43200}
+do_execsql_test default-3.3 {
+  CREATE TABLE t300(
+    a INT DEFAULT 2147483647,
+    b INT DEFAULT 2147483648,
+    c INT DEFAULT +9223372036854775807,
+    d INT DEFAULT -2147483647,
+    e INT DEFAULT -2147483648,
+    f INT DEFAULT -9223372036854775808,
+    g INT DEFAULT (-(-9223372036854775808)),
+    h INT DEFAULT (-(-9223372036854775807))
+  );
+  INSERT INTO t300 DEFAULT VALUES;
+  SELECT * FROM t300;
+} {2147483647 2147483648 9223372036854775807 -2147483647 -2147483648 -9223372036854775808 9.22337203685478e+18 9223372036854775807}
+
+# Do now allow bound parameters in new DEFAULT values. 
+# Silently convert bound parameters to NULL in DEFAULT causes
+# in the sqlite_master table, for backwards compatibility.
+#
+db close
+forcedelete test.db
+sqlite3 db test.db
+sqlite3_db_config db DEFENSIVE 0
+do_execsql_test default-4.0 {
+  CREATE TABLE t1(a TEXT, b TEXT DEFAULT(99));
+  PRAGMA writable_schema=ON;
+  UPDATE sqlite_master SET sql='CREATE TABLE t1(a TEXT, b TEXT DEFAULT(:xyz))';
+} {}
+db close 
+sqlite3 db test.db
+do_execsql_test default-4.1 {
+  INSERT INTO t1(a) VALUES('xyzzy');
+  SELECT a, quote(b) FROM t1;
+} {xyzzy NULL}
+do_catchsql_test default-4.2 {
+  CREATE TABLE t2(a TEXT, b TEXT DEFAULT(:xyz));
+} {1 {default value of column [b] is not constant}}
+do_catchsql_test default-4.3 {
+  CREATE TABLE t2(a TEXT, b TEXT DEFAULT(abs(:xyz)));
+} {1 {default value of column [b] is not constant}}
+do_catchsql_test default-4.4 {
+  CREATE TABLE t2(a TEXT, b TEXT DEFAULT(98+coalesce(5,:xyz)));
+} {1 {default value of column [b] is not constant}}
+
+# 2020-03-09 out-of-bounds memory access discovered by "Eternal Sakura"
+# and reported to chromium.
+#
+reset_db
+do_catchsql_test default-5.1 {
+  CREATE TABLE t1 (a,b DEFAULT(random() NOTNULL IN (RAISE(IGNORE),2,3)));
+  INSERT INTO t1(a) VALUES(1);
+} {1 {default value of column [b] is not constant}}
+do_catchsql_test default-5.2 {
+  CREATE TABLE Table0 (Col0 DEFAULT (RAISE(IGNORE) )  ) ; 
+  INSERT INTO Table0 DEFAULT VALUES ;
+} {1 {default value of column [Col0] is not constant}}
+
+finish_test
diff --git a/test/delete.test b/test/delete.test
new file mode 100644
index 0000000000000000000000000000000000000000..214bae6f703937266e682816264ce310fb30799d
--- /dev/null
+++ b/test/delete.test
@@ -0,0 +1,443 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the DELETE FROM statement.
+#
+# $Id: delete.test,v 1.26 2009/06/05 17:09:12 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Try to delete from a non-existant table.
+#
+do_test delete-1.1 {
+  set v [catch {execsql {DELETE FROM test1}} msg]
+  lappend v $msg
+} {1 {no such table: test1}}
+
+# Try to delete from sqlite_master
+#
+do_test delete-2.1 {
+  set v [catch {execsql {DELETE FROM sqlite_master}} msg]
+  lappend v $msg
+} {1 {table sqlite_master may not be modified}}
+
+# Delete selected entries from a table with and without an index.
+#
+do_test delete-3.1.1 {
+  execsql {CREATE TABLE table1(f1 int, f2 int)}
+  execsql {INSERT INTO table1 VALUES(1,2)}
+  execsql {INSERT INTO table1 VALUES(2,4)}
+  execsql {INSERT INTO table1 VALUES(3,8)}
+  execsql {INSERT INTO table1 VALUES(4,16)}
+  execsql {SELECT * FROM table1 ORDER BY f1}
+} {1 2 2 4 3 8 4 16}
+do_test delete-3.1.2 {
+  execsql {DELETE FROM table1 WHERE f1=3}
+} {}
+do_test delete-3.1.3 {
+  execsql {SELECT * FROM table1 ORDER BY f1}
+} {1 2 2 4 4 16}
+do_test delete-3.1.4 {
+  execsql {CREATE INDEX index1 ON table1(f1)}
+  execsql {PRAGMA count_changes=on}
+  ifcapable explain {
+    execsql {EXPLAIN DELETE FROM table1 WHERE f1=3}
+  }
+  execsql {DELETE FROM 'table1' WHERE f1=3}
+} {0}
+do_test delete-3.1.5 {
+  execsql {SELECT * FROM table1 ORDER BY f1}
+} {1 2 2 4 4 16}
+do_test delete-3.1.6.1 {
+  execsql {DELETE FROM table1 WHERE f1=2}
+} {1}
+do_test delete-3.1.6.2 {
+  db changes
+} 1
+do_test delete-3.1.7 {
+  execsql {SELECT * FROM table1 ORDER BY f1}
+} {1 2 4 16}
+integrity_check delete-3.2
+
+# Semantic errors in the WHERE clause
+#
+do_test delete-4.1 {
+  execsql {CREATE TABLE table2(f1 int, f2 int)}
+  set v [catch {execsql {DELETE FROM table2 WHERE f3=5}} msg]
+  lappend v $msg
+} {1 {no such column: f3}}
+
+do_test delete-4.2 {
+  set v [catch {execsql {DELETE FROM table2 WHERE xyzzy(f1+4)}} msg]
+  lappend v $msg
+} {1 {no such function: xyzzy}}
+integrity_check delete-4.3
+
+# Lots of deletes
+#
+do_test delete-5.1.1 {
+  execsql {DELETE FROM table1}
+} {2}
+do_test delete-5.1.2 {
+  execsql {SELECT count(*) FROM table1}
+} {0}
+do_test delete-5.2.1 {
+  execsql {BEGIN TRANSACTION}
+  for {set i 1} {$i<=200} {incr i} {
+     execsql "INSERT INTO table1 VALUES($i,[expr {$i*$i}])"
+  }
+  execsql {COMMIT}
+  execsql {SELECT count(*) FROM table1}
+} {200}
+do_test delete-5.2.2 {
+  execsql {DELETE FROM table1}
+} {200}
+do_test delete-5.2.3 {
+  execsql {BEGIN TRANSACTION}
+  for {set i 1} {$i<=200} {incr i} {
+     execsql "INSERT INTO table1 VALUES($i,[expr {$i*$i}])"
+  }
+  execsql {COMMIT}
+  execsql {SELECT count(*) FROM table1}
+} {200}
+do_test delete-5.2.4 {
+  execsql {PRAGMA count_changes=off}
+  execsql {DELETE FROM table1}
+} {}
+do_test delete-5.2.5 {
+  execsql {SELECT count(*) FROM table1}
+} {0}
+do_test delete-5.2.6 {
+  execsql {BEGIN TRANSACTION}
+  for {set i 1} {$i<=200} {incr i} {
+     execsql "INSERT INTO table1 VALUES($i,[expr {$i*$i}])"
+  }
+  execsql {COMMIT}
+  execsql {SELECT count(*) FROM table1}
+} {200}
+do_test delete-5.3 {
+  for {set i 1} {$i<=200} {incr i 4} {
+     execsql "DELETE FROM table1 WHERE f1==$i"
+  }
+  execsql {SELECT count(*) FROM table1}
+} {150}
+do_test delete-5.4.1 {
+  execsql "DELETE FROM table1 WHERE f1>50"
+  db changes
+} [db one {SELECT count(*) FROM table1 WHERE f1>50}]
+do_test delete-5.4.2 {
+  execsql {SELECT count(*) FROM table1}
+} {37}
+do_test delete-5.5 {
+  for {set i 1} {$i<=70} {incr i 3} {
+     execsql "DELETE FROM table1 WHERE f1==$i"
+  }
+  execsql {SELECT f1 FROM table1 ORDER BY f1}
+} {2 3 6 8 11 12 14 15 18 20 23 24 26 27 30 32 35 36 38 39 42 44 47 48 50}
+do_test delete-5.6 {
+  for {set i 1} {$i<40} {incr i} {
+     execsql "DELETE FROM table1 WHERE f1==$i"
+  }
+  execsql {SELECT f1 FROM table1 ORDER BY f1}
+} {42 44 47 48 50}
+do_test delete-5.7 {
+  execsql "DELETE FROM table1 WHERE f1!=48"
+  execsql {SELECT f1 FROM table1 ORDER BY f1}
+} {48}
+integrity_check delete-5.8
+
+
+# Delete large quantities of data.  We want to test the List overflow
+# mechanism in the vdbe.
+#
+do_test delete-6.1 {
+  execsql {BEGIN; DELETE FROM table1}
+  for {set i 1} {$i<=3000} {incr i} {
+    execsql "INSERT INTO table1 VALUES($i,[expr {$i*$i}])"
+  }
+  execsql {DELETE FROM table2}
+  for {set i 1} {$i<=3000} {incr i} {
+    execsql "INSERT INTO table2 VALUES($i,[expr {$i*$i}])"
+  }
+  execsql {COMMIT}
+  execsql {SELECT count(*) FROM table1}
+} {3000}
+do_test delete-6.2 {
+  execsql {SELECT count(*) FROM table2}
+} {3000}
+do_test delete-6.3 {
+  execsql {SELECT f1 FROM table1 WHERE f1<10 ORDER BY f1}
+} {1 2 3 4 5 6 7 8 9}
+do_test delete-6.4 {
+  execsql {SELECT f1 FROM table2 WHERE f1<10 ORDER BY f1}
+} {1 2 3 4 5 6 7 8 9}
+do_test delete-6.5.1 {
+  execsql {DELETE FROM table1 WHERE f1>7}
+  db changes
+} {2993}
+do_test delete-6.5.2 {
+  execsql {SELECT f1 FROM table1 ORDER BY f1}
+} {1 2 3 4 5 6 7}
+do_test delete-6.6 {
+  execsql {DELETE FROM table2 WHERE f1>7}
+  execsql {SELECT f1 FROM table2 ORDER BY f1}
+} {1 2 3 4 5 6 7}
+do_test delete-6.7 {
+  execsql {DELETE FROM table1}
+  execsql {SELECT f1 FROM table1}
+} {}
+do_test delete-6.8 {
+  execsql {INSERT INTO table1 VALUES(2,3)}
+  execsql {SELECT f1 FROM table1}
+} {2}
+do_test delete-6.9 {
+  execsql {DELETE FROM table2}
+  execsql {SELECT f1 FROM table2}
+} {}
+do_test delete-6.10 {
+  execsql {INSERT INTO table2 VALUES(2,3)}
+  execsql {SELECT f1 FROM table2}
+} {2}
+integrity_check delete-6.11
+
+do_test delete-7.1 {
+  execsql {
+    CREATE TABLE t3(a);
+    INSERT INTO t3 VALUES(1);
+    INSERT INTO t3 SELECT a+1 FROM t3;
+    INSERT INTO t3 SELECT a+2 FROM t3;
+    SELECT * FROM t3;
+  }
+} {1 2 3 4}
+ifcapable {trigger} {
+  do_test delete-7.2 {
+    execsql {
+      CREATE TABLE cnt(del);
+      INSERT INTO cnt VALUES(0);
+      CREATE TRIGGER r1 AFTER DELETE ON t3 FOR EACH ROW BEGIN
+        UPDATE cnt SET del=del+1;
+      END;
+      DELETE FROM t3 WHERE a<2;
+      SELECT * FROM t3;
+    }
+  } {2 3 4}
+  do_test delete-7.3 {
+    execsql {
+      SELECT * FROM cnt;
+    }
+  } {1}
+  do_test delete-7.4 {
+    execsql {
+      DELETE FROM t3;
+      SELECT * FROM t3;
+    }
+  } {}
+  do_test delete-7.5 {
+    execsql {
+      SELECT * FROM cnt;
+    }
+  } {4}
+  do_test delete-7.6 {
+    execsql {
+      INSERT INTO t3 VALUES(1);
+      INSERT INTO t3 SELECT a+1 FROM t3;
+      INSERT INTO t3 SELECT a+2 FROM t3;
+      CREATE TABLE t4 AS SELECT * FROM t3;
+      PRAGMA count_changes=ON;
+      DELETE FROM t3;
+      DELETE FROM t4;
+    }
+  } {4 4}
+} ;# endif trigger
+ifcapable {!trigger} {
+  execsql {DELETE FROM t3}
+}
+integrity_check delete-7.7
+
+# Make sure error messages are consistent when attempting to delete
+# from a read-only database.  Ticket #304.
+#
+do_test delete-8.0 {
+  execsql {
+    PRAGMA count_changes=OFF;
+    INSERT INTO t3 VALUES(123);
+    SELECT * FROM t3;
+  }
+} {123}
+db close
+catch {forcedelete test.db-journal}
+catch {file attributes test.db -permissions 0444}
+catch {file attributes test.db -readonly 1}
+sqlite3 db test.db
+set ::DB [sqlite3_connection_pointer db]
+do_test delete-8.1 {
+  catchsql {
+    DELETE FROM t3;
+  }
+} {1 {attempt to write a readonly database}}
+do_test delete-8.2 {
+  execsql {SELECT * FROM t3} 
+} {123}
+do_test delete-8.3 {
+  catchsql {
+    DELETE FROM t3 WHERE 1;
+  }
+} {1 {attempt to write a readonly database}}
+do_test delete-8.4 {
+  execsql {SELECT * FROM t3} 
+} {123}
+
+# Update for v3: In v2 the DELETE statement would succeed because no
+# database writes actually occur. Version 3 refuses to open a transaction
+# on a read-only file, so the statement fails.
+do_test delete-8.5 {
+  catchsql {
+    DELETE FROM t3 WHERE a<100;
+  }
+# v2 result: {0 {}}
+} {1 {attempt to write a readonly database}}
+do_test delete-8.6 {
+  execsql {SELECT * FROM t3}
+} {123}
+integrity_check delete-8.7
+
+# Need to do the following for tcl 8.5 on mac. On that configuration, the
+# -readonly flag is taken so seriously that a subsequent [forcedelete]
+# (required before the next test file can be executed) will fail.
+#
+catch {file attributes test.db -readonly 0}
+db close
+forcedelete test.db test.db-journal
+
+# The following tests verify that SQLite correctly handles the case
+# where an index B-Tree is being scanned, the rowid column being read
+# from each index entry and another statement deletes some rows from
+# the index B-Tree. At one point this (obscure) scenario was causing 
+# SQLite to return spurious SQLITE_CORRUPT errors and arguably incorrect
+# query results. 
+#
+do_test delete-9.1 {
+  sqlite3 db test.db
+  execsql {
+    CREATE TABLE t5(a, b);
+    CREATE TABLE t6(c, d);
+    INSERT INTO t5 VALUES(1, 2);
+    INSERT INTO t5 VALUES(3, 4);
+    INSERT INTO t5 VALUES(5, 6);
+    INSERT INTO t6 VALUES('a', 'b');
+    INSERT INTO t6 VALUES('c', 'd');
+    CREATE INDEX i5 ON t5(a);
+    CREATE INDEX i6 ON t6(c);
+  }
+} {}
+do_test delete-9.2 {
+  set res [list]
+  db eval { SELECT t5.rowid AS r, c, d FROM t5, t6 ORDER BY a } {
+    if {$r==2} { db eval { DELETE FROM t5 } }
+    lappend res $r $c $d
+  }
+  set res
+} {1 a b 1 c d 2 a b {} c d}
+do_test delete-9.3 {
+  execsql {
+    INSERT INTO t5 VALUES(1, 2);
+    INSERT INTO t5 VALUES(3, 4);
+    INSERT INTO t5 VALUES(5, 6);
+  }
+  set res [list]
+  db eval { SELECT t5.rowid AS r, c, d FROM t5, t6 ORDER BY a } {
+    if {$r==2} { db eval { DELETE FROM t5 WHERE rowid = 2 } }
+    lappend res $r $c $d
+  }
+  set res
+} {1 a b 1 c d 2 a b {} c d 3 a b 3 c d}
+do_test delete-9.4 {
+  execsql {
+    DELETE FROM t5;
+    INSERT INTO t5 VALUES(1, 2);
+    INSERT INTO t5 VALUES(3, 4);
+    INSERT INTO t5 VALUES(5, 6);
+  }
+  set res [list]
+  db eval { SELECT t5.rowid AS r, c, d FROM t5, t6 ORDER BY a } {
+    if {$r==2} { db eval { DELETE FROM t5 WHERE rowid = 1 } }
+    lappend res $r $c $d
+  }
+  set res
+} {1 a b 1 c d 2 a b 2 c d 3 a b 3 c d}
+do_test delete-9.5 {
+  execsql {
+    DELETE FROM t5;
+    INSERT INTO t5 VALUES(1, 2);
+    INSERT INTO t5 VALUES(3, 4);
+    INSERT INTO t5 VALUES(5, 6);
+  }
+  set res [list]
+  db eval { SELECT t5.rowid AS r, c, d FROM t5, t6 ORDER BY a } {
+    if {$r==2} { db eval { DELETE FROM t5 WHERE rowid = 3 } }
+    lappend res $r $c $d
+  }
+  set res
+} {1 a b 1 c d 2 a b 2 c d}
+
+do_execsql_test delete-10.0 {
+  CREATE TABLE t1(a INT UNIQUE, b INT);
+  INSERT INTO t1(a,b) VALUES('1','2');
+  SELECT * FROM t1 WHERE a='1' AND b='2';
+} {1 2}
+
+do_execsql_test delete-10.1 {
+  DELETE FROM t1 WHERE a='1' AND b='2';
+}
+
+do_execsql_test delete-10.2 {
+  SELECT * FROM t1 WHERE a='1' AND b='2';
+}
+
+do_execsql_test delete-11.0 {
+  CREATE TABLE t11(a INTEGER PRIMARY KEY, b INT);
+  WITH RECURSIVE cnt(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM cnt WHERE x<20)
+    INSERT INTO t11(a,b) SELECT x, (x*17)%100 FROM cnt;
+  SELECT * FROM t11;
+} {1 17 2 34 3 51 4 68 5 85 6 2 7 19 8 36 9 53 10 70 11 87 12 4 13 21 14 38 15 55 16 72 17 89 18 6 19 23 20 40}
+do_execsql_test delete-11.1 {
+  DELETE FROM t11 AS xyz
+   WHERE EXISTS(SELECT 1 FROM t11 WHERE t11.a>xyz.a AND t11.b<=xyz.b);
+  SELECT * FROM t11;
+} {6 2 12 4 18 6 19 23 20 40}
+
+
+# 2023-03-15
+# https://sqlite.org/forum/forumpost/e61252062c9d286d
+#
+# When the WHERE clause of a DELETE statement contains a subquery
+# which uses the table that is being deleted from and there is a
+# short-circuit operator of some kind in the WHERE clause such that
+# the subquery might not run right away, then the subquery might
+# run after one or more rows have been deleted, which can change
+# the result of the subquery, and result in the wrong answer.
+#
+# Similar problem for UPDATE tested by update-21.4
+# https://sqlite.org/forum/forumpost/0007d1fdb1
+#
+reset_db
+do_execsql_test delete-12.0 {
+  CREATE TABLE t0(vkey INTEGER, pkey INTEGER,c1 INTEGER);
+  INSERT INTO t0 VALUES(2,1,-20),(2,2,NULL),(2,3,0),(8,4,95);
+  DELETE FROM t0 WHERE NOT (
+    (t0.vkey <= t0.c1) AND
+    (t0.vkey <> (SELECT vkey FROM t0 ORDER BY vkey LIMIT 1 OFFSET 2))
+  );
+  SELECT * FROM t0;
+} {8 4 95}
+
+finish_test
diff --git a/test/delete2.test b/test/delete2.test
new file mode 100644
index 0000000000000000000000000000000000000000..1668a3a9ae05c82ece49e3d0642531731c5f9135
--- /dev/null
+++ b/test/delete2.test
@@ -0,0 +1,119 @@
+# 2003 September 6
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is a test to replicate the bug reported by
+# ticket #842.
+#
+# Ticket #842 was a database corruption problem caused by a DELETE that
+# removed an index entry by not the main table entry.  To recreate the
+# problem do this:
+#
+#   (1) Create a table with an index.  Insert some data into that table.
+#   (2) Start a query on the table but do not complete the query.
+#   (3) Try to delete a single entry from the table.
+#
+# Step 3 will fail because there is still a read cursor on the table.
+# But the database is corrupted by the DELETE.  It turns out that the
+# index entry was deleted first, before the table entry.  And the index
+# delete worked.  Thus an entry was deleted from the index but not from
+# the table.
+#
+# The solution to the problem was to detect that the table is locked
+# before the index entry is deleted.
+#
+# $Id: delete2.test,v 1.8 2008/07/08 15:59:52 danielk1977 Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Create a table that has an index.
+#
+do_test delete2-1.1 {
+  set DB [sqlite3_connection_pointer db]
+  execsql {
+    CREATE TABLE q(s string, id string, constraint pk_q primary key(id));
+    BEGIN;
+    INSERT INTO q(s,id) VALUES('hello','id.1');
+    INSERT INTO q(s,id) VALUES('goodbye','id.2');
+    INSERT INTO q(s,id) VALUES('again','id.3');
+    END;
+    SELECT * FROM q;
+  }
+} {hello id.1 goodbye id.2 again id.3}
+do_test delete2-1.2 {
+  execsql {
+    SELECT * FROM q WHERE id='id.1';
+  }
+} {hello id.1}
+integrity_check delete2-1.3
+
+# Start a query on the table.  The query should not use the index.
+# Do not complete the query, thus leaving the table locked.
+#
+do_test delete2-1.4 {
+  set STMT [sqlite3_prepare $DB {SELECT * FROM q} -1 TAIL]
+  sqlite3_step $STMT
+} SQLITE_ROW
+integrity_check delete2-1.5
+
+# Try to delete a row from the table while a read is in process.
+# As of 2006-08-16, this is allowed.  (It used to fail with SQLITE_LOCKED.)
+#
+do_test delete2-1.6 {
+  catchsql {
+    DELETE FROM q WHERE rowid=1
+  }
+} {0 {}}
+integrity_check delete2-1.7
+do_test delete2-1.8 {
+  execsql {
+    SELECT * FROM q;
+  }
+} {goodbye id.2 again id.3}
+
+# Finalize the query, thus clearing the lock on the table.  Then
+# retry the delete.  The delete should work this time.
+#
+do_test delete2-1.9 {
+  sqlite3_finalize $STMT
+  catchsql {
+    DELETE FROM q WHERE rowid=1
+  }
+} {0 {}}
+integrity_check delete2-1.10
+do_test delete2-1.11 {
+  execsql {
+    SELECT * FROM q;
+  }
+} {goodbye id.2 again id.3}
+
+do_test delete2-2.1 {
+  execsql {
+    CREATE TABLE t1(a, b);
+    CREATE TABLE t2(c, d);
+    INSERT INTO t1 VALUES(1, 2);
+    INSERT INTO t2 VALUES(3, 4);
+    INSERT INTO t2 VALUES(5, 6);
+  }
+} {}
+do_test delete2-2.2 {
+  set res [list]
+  db eval {
+    SELECT CASE WHEN c = 5 THEN b ELSE NULL END AS b, c, d FROM t1, t2
+  } {
+    db eval {DELETE FROM t1}
+    lappend res $b $c $d
+  }
+  set res
+} {{} 3 4 {} 5 6}
+
+finish_test
diff --git a/test/delete3.test b/test/delete3.test
new file mode 100644
index 0000000000000000000000000000000000000000..a31f6ec39e49eed7fb0b2445822466457c696774
--- /dev/null
+++ b/test/delete3.test
@@ -0,0 +1,57 @@
+# 2005 August 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is a test of the DELETE command where a
+# large number of rows are deleted.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Create a table that contains a large number of rows.
+#
+do_test delete3-1.1 {
+  execsql {
+    CREATE TABLE t1(x integer primary key);
+    BEGIN;
+    INSERT INTO t1 VALUES(1);
+    INSERT INTO t1 VALUES(2);
+    INSERT INTO t1 SELECT x+2 FROM t1;
+    INSERT INTO t1 SELECT x+4 FROM t1;
+    INSERT INTO t1 SELECT x+8 FROM t1;
+    INSERT INTO t1 SELECT x+16 FROM t1;
+    INSERT INTO t1 SELECT x+32 FROM t1;
+    INSERT INTO t1 SELECT x+64 FROM t1;
+    INSERT INTO t1 SELECT x+128 FROM t1;
+    INSERT INTO t1 SELECT x+256 FROM t1;
+    INSERT INTO t1 SELECT x+512 FROM t1;
+    INSERT INTO t1 SELECT x+1024 FROM t1;
+    INSERT INTO t1 SELECT x+2048 FROM t1;
+    INSERT INTO t1 SELECT x+4096 FROM t1;
+    INSERT INTO t1 SELECT x+8192 FROM t1;
+    INSERT INTO t1 SELECT x+16384 FROM t1;
+    INSERT INTO t1 SELECT x+32768 FROM t1;
+    INSERT INTO t1 SELECT x+65536 FROM t1;
+    INSERT INTO t1 SELECT x+131072 FROM t1;
+    INSERT INTO t1 SELECT x+262144 FROM t1;
+    COMMIT;
+    SELECT count(*) FROM t1;	
+  }
+} {524288}
+do_test delete3-1.2 {
+  execsql {
+    DELETE FROM t1 WHERE x%2==0;
+    SELECT count(*) FROM t1;
+  }
+} {262144}
+integrity_check delete3-1.3
+
+finish_test
diff --git a/test/delete4.test b/test/delete4.test
new file mode 100644
index 0000000000000000000000000000000000000000..8d6a1b8c7cacf6189d49f0d473c176053c0f845a
--- /dev/null
+++ b/test/delete4.test
@@ -0,0 +1,272 @@
+# 2005 August 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is a test of the DELETE command.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix delete4
+
+do_execsql_test 1.1 {
+  CREATE TABLE t1(x INTEGER PRIMARY KEY, y);
+  INSERT INTO t1 VALUES(1, 0);
+  INSERT INTO t1 VALUES(2, 1);
+  INSERT INTO t1 VALUES(3, 0);
+  INSERT INTO t1 VALUES(4, 1);
+  INSERT INTO t1 VALUES(5, 0);
+  INSERT INTO t1 VALUES(6, 1);
+  INSERT INTO t1 VALUES(7, 0);
+  INSERT INTO t1 VALUES(8, 1);
+}
+do_execsql_test 1.2 {
+  DELETE FROM t1 WHERE y=1;
+}
+do_execsql_test 1.3 {
+  SELECT x FROM t1;
+} {1 3 5 7}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 2.1 {
+  CREATE TABLE t1(x INTEGER PRIMARY KEY, y, z);
+  INSERT INTO t1 VALUES(1, 0, randomblob(200));
+  INSERT INTO t1 VALUES(2, 1, randomblob(200));
+  INSERT INTO t1 VALUES(3, 0, randomblob(200));
+  INSERT INTO t1 VALUES(4, 1, randomblob(200));
+  INSERT INTO t1 VALUES(5, 0, randomblob(200));
+  INSERT INTO t1 VALUES(6, 1, randomblob(200));
+  INSERT INTO t1 VALUES(7, 0, randomblob(200));
+  INSERT INTO t1 VALUES(8, 1, randomblob(200));
+}
+do_execsql_test 2.2 {
+  DELETE FROM t1 WHERE y=1;
+}
+do_execsql_test 2.3 {
+  SELECT x FROM t1;
+} {1 3 5 7}
+
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 3.0.1 {
+  CREATE TABLE t1(a, b, PRIMARY KEY(a, b)) WITHOUT ROWID;
+  INSERT INTO t1 VALUES(1, 2);
+  INSERT INTO t1 VALUES(2, 4);
+  INSERT INTO t1 VALUES(1, 5);
+  DELETE FROM t1 WHERE a=1;
+  SELECT printf('(%d)',changes());
+  SELECT * FROM t1;
+} {(2) 2 4}
+do_execsql_test 3.0.2 {
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<100)
+     INSERT INTO t1(a,b) SELECT x, x+1 FROM c;
+  SELECT printf('(%d)',changes());
+  DELETE FROM t1;
+  SELECT printf('(%d)',changes());
+} {(100) (101)}
+
+#-------------------------------------------------------------------------
+# DELETE statement that uses the OR optimization
+#
+reset_db
+do_execsql_test 3.1 {
+  CREATE TABLE t1(i INTEGER PRIMARY KEY, a, b);
+  CREATE INDEX i1a ON t1(a);
+  CREATE INDEX i1b ON t1(b);
+  INSERT INTO t1 VALUES(1, 'one', 'i');
+  INSERT INTO t1 VALUES(2, 'two', 'ii');
+  INSERT INTO t1 VALUES(3, 'three', 'iii');
+  INSERT INTO t1 VALUES(4, 'four', 'iv');
+  INSERT INTO t1 VALUES(5, 'one', 'i');
+  INSERT INTO t1 VALUES(6, 'two', 'ii');
+  INSERT INTO t1 VALUES(7, 'three', 'iii');
+  INSERT INTO t1 VALUES(8, 'four', 'iv');
+} {}
+
+do_execsql_test 3.2 {
+  DELETE FROM t1 WHERE a='two' OR b='iv';
+}
+
+do_execsql_test 3.3 {
+  SELECT i FROM t1 ORDER BY i;
+} {1 3 5 7}
+
+do_execsql_test 3.4 { 
+  PRAGMA integrity_check; 
+} {ok}
+
+# Between 2015-09-14 and 2015-09-28, the following test cases would result
+# in corruption (wrong # of entries in index) due to a bug in the ONEPASS
+# optimization.
+#
+do_execsql_test 4.1 {
+  DROP TABLE IF EXISTS t4;
+  CREATE TABLE t4(col0, col1);
+  INSERT INTO "t4" VALUES(14, 'abcde');
+  CREATE INDEX idx_t4_0 ON t4 (col1, col0);
+  CREATE INDEX idx_t4_3 ON t4 (col0);
+  DELETE FROM t4 WHERE col0=69 OR col0>7;
+  PRAGMA integrity_check;
+} {ok}
+do_execsql_test 4.2 {
+  DROP TABLE IF EXISTS t4;
+  CREATE TABLE t4(col0, col1);
+  INSERT INTO "t4" VALUES(14, 'abcde');
+  CREATE INDEX idx_t4_3 ON t4 (col0);
+  CREATE INDEX idx_t4_0 ON t4 (col1, col0);
+  DELETE FROM t4 WHERE col0=69 OR col0>7;
+  PRAGMA integrity_check;
+} {ok}
+do_execsql_test 4.11 {
+  DROP TABLE IF EXISTS t4;
+  CREATE TABLE t4(col0, col1, pk PRIMARY KEY) WITHOUT ROWID;
+  INSERT INTO t4 VALUES(14, 'abcde','xyzzy');
+  CREATE INDEX idx_t4_0 ON t4 (col1, col0);
+  CREATE INDEX idx_t4_3 ON t4 (col0);
+  DELETE FROM t4 WHERE col0=69 OR col0>7;
+  PRAGMA integrity_check;
+} {ok}
+do_execsql_test 4.12 {
+  DROP TABLE IF EXISTS t4;
+  CREATE TABLE t4(col0, col1, pk PRIMARY KEY) WITHOUT ROWID;
+  INSERT INTO t4 VALUES(14, 'abcde','xyzzy');
+  CREATE INDEX idx_t4_3 ON t4 (col0);
+  CREATE INDEX idx_t4_0 ON t4 (col1, col0);
+  DELETE FROM t4 WHERE col0=69 OR col0>7;
+  PRAGMA integrity_check;
+} {ok}
+
+# 2016-04-09
+# Ticket https://sqlite.org/src/info/a306e56ff68b8fa5
+# Failure to completely delete when reverse_unordered_selects is
+# engaged.
+#
+db close
+forcedelete test.db
+sqlite3 db test.db
+do_execsql_test 5.0 {
+  PRAGMA page_size=1024;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+  CREATE INDEX x1 ON t1(b, c);
+  INSERT INTO t1(a,b,c) VALUES(1, 1, zeroblob(80));
+  INSERT INTO t1(a,b,c) SELECT a+1, 1, c FROM t1;
+  INSERT INTO t1(a,b,c) SELECT a+2, 1, c FROM t1;
+  INSERT INTO t1(a,b,c) SELECT a+10, 2, c FROM t1 WHERE b=1;
+  INSERT INTO t1(a,b,c) SELECT a+20, 3, c FROM t1 WHERE b=1;
+  PRAGMA reverse_unordered_selects = ON;
+  DELETE FROM t1 WHERE b=2;
+  SELECT a FROM t1 WHERE b=2;
+} {}
+
+# 2016-05-02
+# Ticket https://www.sqlite.org/src/tktview/dc6ebeda93960877
+# A subquery in the WHERE clause of a one-pass DELETE can cause an
+# incorrect answer.
+#
+db close
+forcedelete test.db
+sqlite3 db test.db
+do_execsql_test 6.0 {
+  CREATE TABLE t2(x INT);
+  INSERT INTO t2(x) VALUES(1),(2),(3),(4),(5);
+  DELETE FROM t2 WHERE EXISTS(SELECT 1 FROM t2 AS v WHERE v.x=t2.x-1);
+  SELECT x FROM t2;
+} {1}
+do_execsql_test 6.1 {
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t2(x INT);
+  INSERT INTO t2(x) VALUES(1),(2),(3),(4),(5);
+  DELETE FROM t2 WHERE EXISTS(SELECT 1 FROM t2 AS v WHERE v.x=t2.x+1);
+  SELECT x FROM t2;
+} {5}
+
+#-------------------------------------------------------------------------
+# Test the effect of failing to find a table row based on an index key
+# within a DELETE. Either because the db is corrupt, or a trigger on another
+# row already deleted the entry, or because a BEFORE trigger on the current
+# row has already deleted it.
+#
+do_execsql_test 7.1.0 {
+  CREATE TABLE t3(id INT PRIMARY KEY, a, b) WITHOUT ROWID;
+  CREATE INDEX t3a ON t3(a);
+  CREATE INDEX t3b ON t3(b);
+
+  INSERT INTO t3 VALUES(1, 1, 1);
+  INSERT INTO t3 VALUES(2, 2, 2);
+  INSERT INTO t3 VALUES(3, 3, 3);
+  INSERT INTO t3 VALUES(4, 4, 1);
+}
+do_execsql_test 7.1.1 {
+  DELETE FROM t3 WHERE a=4 OR b=1;
+}
+do_execsql_test 7.1.2 {
+  SELECT * FROM t3;
+} { 2 2 2   3 3 3 }
+
+do_execsql_test 7.2.0 {
+  CREATE TABLE t4(a PRIMARY KEY, b) WITHOUT ROWID;
+  CREATE INDEX t4i ON t4(b);
+  INSERT INTO t4 VALUES(1, 'hello');
+  INSERT INTO t4 VALUES(2, 'world');
+
+  CREATE TABLE t5(a PRIMARY KEY, b) WITHOUT ROWID;
+  CREATE INDEX t5i ON t5(b);
+  INSERT INTO t5 VALUES(1, 'hello');
+  INSERT INTO t5 VALUES(3, 'world');
+
+  PRAGMA writable_schema = 1;
+  UPDATE sqlite_master SET rootpage = (
+    SELECT rootpage FROM sqlite_master WHERE name = 't5'
+  ) WHERE name = 't4';
+}
+
+db close
+sqlite3 db test.db
+do_execsql_test 7.2.1 {
+  DELETE FROM t4 WHERE b='world'
+}
+reset_db
+
+do_execsql_test 7.3.0 {
+  CREATE TABLE t3(id INT PRIMARY KEY, a, b) WITHOUT ROWID;
+  INSERT INTO t3 VALUES(1, 2, 3);
+  INSERT INTO t3 VALUES(4, 5, 6);
+  INSERT INTO t3 VALUES(7, 8, 9);
+  CREATE TRIGGER t3t BEFORE DELETE ON t3 BEGIN
+    DELETE FROM t3 WHERE id=old.id+3;
+  END;
+}
+
+do_execsql_test 7.3.1 {
+  DELETE FROM t3 WHERE a IN(2, 5, 8);
+  SELECT * FROM t3;
+} {}
+
+do_execsql_test 7.3.2 {
+  DROP TRIGGER t3t;
+  INSERT INTO t3 VALUES(1, 2, 3);
+  INSERT INTO t3 VALUES(4, 5, 6);
+  INSERT INTO t3 VALUES(7, 8, 9);
+  CREATE TRIGGER t3t BEFORE DELETE ON t3 BEGIN
+    DELETE FROM t3 WHERE id=old.id;
+  END;
+}
+
+do_execsql_test 7.3.3 {
+  DELETE FROM t3 WHERE a IN(2, 5, 8);
+  SELECT * FROM t3;
+} {}
+
+
+finish_test
diff --git a/test/delete_db.test b/test/delete_db.test
new file mode 100644
index 0000000000000000000000000000000000000000..6edd9c242e01d5502d16200eba95b1a59a52dd3b
--- /dev/null
+++ b/test/delete_db.test
@@ -0,0 +1,222 @@
+# 2016 September 10
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the code in test_delete.c (the
+# sqlite3_delete_database() API).
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix delete_db
+
+if {[atomic_batch_write test.db]} {
+  finish_test
+  return
+}
+
+proc delete_all {} {
+  foreach f [glob -nocomplain test2*] { file delete $f }
+  foreach f [glob -nocomplain test3*] { file delete $f }
+}
+
+proc copydb {} {
+  foreach f [glob -nocomplain test3*] { file delete $f }
+  foreach f [glob -nocomplain test2*] { 
+    set p [string range $f 5 end]
+    file copy "test2$p" "test3$p"
+  }
+}
+
+proc files {} {
+  lsort [glob -nocomplain test3*]
+}
+
+db close
+delete_all
+sqlite3 db test2.database
+
+#-------------------------------------------------------------------------
+#
+# 1.1: Journal files.
+# 1.2: Wal files.
+# 1.3: Multiplexor with journal file.
+# 1.4: Multiplexor with wal file.
+#
+# 2.* are a copy of 1.* with the multiplexor enabled.
+#
+# 3.* tests errors.
+#
+
+do_test 1.1.0 {
+  execsql {
+    CREATE TABLE t1(x, y);
+    BEGIN;
+      INSERT INTO t1 VALUES(1, 2);
+  }
+  copydb
+  files
+} {test3.database test3.database-journal}
+
+do_test 1.1.1 {
+  sqlite3_delete_database test3.database
+  files
+} {}
+
+do_test 1.2.0 {
+  execsql {
+    COMMIT;
+    PRAGMA journal_mode = wal;
+    INSERT INTO t1 VALUES(3, 4);
+  }
+  copydb
+  files
+} {test3.database test3.database-shm test3.database-wal}
+do_test 1.2.1 {
+  sqlite3_delete_database test3.database
+  files
+} {}
+
+db close
+delete_all
+sqlite3_multiplex_initialize "" 0
+sqlite3 db test2.database -vfs multiplex
+sqlite3_multiplex_control db "main" chunk_size 32768
+
+do_test 1.3.0 {
+  execsql { PRAGMA auto_vacuum = 0; }
+  execsql {
+    CREATE TABLE x1(a, b);
+    WITH s(i) AS ( VALUES(1) UNION ALL SELECT i+1 FROM s WHERE i<1000 )
+    INSERT INTO x1 SELECT randomblob(100), randomblob(100) FROM s;
+    BEGIN;
+      UPDATE x1 SET a=randomblob(101)
+  }
+  copydb
+  files
+} [list {*}{
+  test3.database test3.database-journal test3.database001 
+  test3.database002 test3.database003
+}]
+do_test 1.3.1 {
+  sqlite3_delete_database test3.database
+  files
+} {}
+
+
+do_test 1.4.0 {
+  execsql {
+    COMMIT;
+    PRAGMA journal_mode = wal;
+    UPDATE x1 SET a=randomblob(102)
+  }
+  copydb
+  files
+} [list {*}{
+  test3.database test3.database-shm test3.database-wal test3.database001 
+  test3.database002 test3.database003
+}]
+do_test 1.4.1 {
+  sqlite3_delete_database test3.database
+  files
+} {}
+
+
+ifcapable 8_3_names {
+  db close
+  delete_all
+  sqlite3 db file:test2.db?8_3_names=1 -uri 1
+
+  do_test 2.1.0 {
+    execsql {
+      CREATE TABLE t1(x, y);
+      BEGIN;
+        INSERT INTO t1 VALUES(1, 2);
+    }
+    copydb
+    files
+  } {test3.db test3.nal}
+  
+  do_test 2.1.1 {
+    sqlite3_delete_database test3.db
+    files
+  } {}
+  
+  do_test 2.2.0 {
+    execsql {
+      COMMIT;
+      PRAGMA journal_mode = wal;
+      INSERT INTO t1 VALUES(3, 4);
+    }
+    copydb
+    files
+  } {test3.db test3.shm test3.wal}
+  do_test 2.2.1 {
+    sqlite3_delete_database test3.db
+    files
+  } {}
+
+
+  db close
+  delete_all
+  sqlite3_multiplex_initialize "" 0
+  sqlite3 db file:test2.db?8_3_names=1 -uri 1 -vfs multiplex
+  sqlite3_multiplex_control db "main" chunk_size 32768
+  
+  do_test 2.3.0 {
+    execsql { PRAGMA auto_vacuum = 0; }
+    execsql {
+      CREATE TABLE x1(a, b);
+      WITH s(i) AS ( VALUES(1) UNION ALL SELECT i+1 FROM s WHERE i<1000 )
+      INSERT INTO x1 SELECT randomblob(100), randomblob(100) FROM s;
+      BEGIN;
+        UPDATE x1 SET a=randomblob(101)
+    }
+    copydb
+    files
+  } [list {*}{
+    test3.001 test3.002 test3.003 test3.db test3.nal 
+  }]
+  do_test 2.3.1 {
+    sqlite3_delete_database test3.db
+    files
+  } {}
+  
+  
+  do_test 2.4.0 {
+    execsql {
+      COMMIT;
+      PRAGMA journal_mode = wal;
+      UPDATE x1 SET a=randomblob(102)
+    }
+    copydb
+    files
+  } [list {*}{
+    test3.001 test3.002 test3.003 test3.db test3.db-shm test3.wal 
+  }]
+  do_test 2.4.1 {
+    sqlite3_delete_database test3.db
+    files
+  } {}
+}
+
+db close
+delete_all
+sqlite3_multiplex_shutdown 
+
+do_test 3.0 {
+  file mkdir dir2.db
+  sqlite3_delete_database dir2.db
+} {SQLITE_ERROR}
+do_test 3.1 {
+  sqlite3_delete_database dir2.db/test.db
+} {SQLITE_OK}
+
+finish_test
diff --git a/test/descidx1.test b/test/descidx1.test
new file mode 100644
index 0000000000000000000000000000000000000000..14be6f84e85e9dde176a050ef226ad2cfadc384a
--- /dev/null
+++ b/test/descidx1.test
@@ -0,0 +1,365 @@
+# 2005 December 21
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is descending indices.
+#
+# $Id: descidx1.test,v 1.10 2008/03/19 00:21:31 drh Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Do not use a codec for tests in this file, as the database file is
+# manipulated directly using tcl scripts (using the [hexio_write] command).
+#
+do_not_use_codec
+
+#db eval {PRAGMA legacy_file_format=OFF}
+sqlite3_db_config db LEGACY_FILE_FORMAT 0
+
+# This procedure sets the value of the file-format in file 'test.db'
+# to $newval. Also, the schema cookie is incremented.
+# 
+proc set_file_format {newval} {
+  hexio_write test.db 44 [hexio_render_int32 $newval]
+  set schemacookie [hexio_get_int [hexio_read test.db 40 4]]
+  incr schemacookie
+  hexio_write test.db 40 [hexio_render_int32 $schemacookie]
+  return {}
+}
+
+# This procedure returns the value of the file-format in file 'test.db'.
+# 
+proc get_file_format {{fname test.db}} {
+  return [hexio_get_int [hexio_read $fname 44 4]]
+}
+
+
+# Verify that the file format starts as 4.
+#
+do_test descidx1-1.1 {
+  execsql {
+    CREATE TABLE t1(a,b);
+    CREATE INDEX i1 ON t1(b ASC);
+  }
+  get_file_format
+} {4}
+do_test descidx1-1.2 {
+  execsql {
+    CREATE INDEX i2 ON t1(a DESC);
+  }
+  get_file_format
+} {4}
+
+# Put some information in the table and verify that the descending
+# index actually works.
+#
+do_test descidx1-2.1 {
+  execsql {
+    INSERT INTO t1 VALUES(1,1);
+    INSERT INTO t1 VALUES(2,2);
+    INSERT INTO t1 SELECT a+2, a+2 FROM t1;
+    INSERT INTO t1 SELECT a+4, a+4 FROM t1;
+    SELECT b FROM t1 WHERE a>3 AND a<7;
+  }
+} {6 5 4}
+do_test descidx1-2.2 {
+  execsql {
+    SELECT a FROM t1 WHERE b>3 AND b<7;
+  }
+} {4 5 6}
+do_test descidx1-2.3 {
+  execsql {
+    SELECT b FROM t1 WHERE a>=3 AND a<7;
+  }
+} {6 5 4 3}
+do_test descidx1-2.4 {
+  execsql {
+    SELECT b FROM t1 WHERE a>3 AND a<=7;
+  }
+} {7 6 5 4}
+do_test descidx1-2.5 {
+  execsql {
+    SELECT b FROM t1 WHERE a>=3 AND a<=7;
+  }
+} {7 6 5 4 3}
+do_test descidx1-2.6 {
+  execsql {
+    SELECT a FROM t1 WHERE b>=3 AND b<=7;
+  }
+} {3 4 5 6 7}
+
+# This procedure executes the SQL.  Then it checks to see if the OP_Sort
+# opcode was executed.  If an OP_Sort did occur, then "sort" is appended
+# to the result.  If no OP_Sort happened, then "nosort" is appended.
+#
+# This procedure is used to check to make sure sorting is or is not
+# occurring as expected.
+#
+proc cksort {sql} {
+  set ::sqlite_sort_count 0
+  set data [execsql $sql]
+  if {$::sqlite_sort_count} {set x sort} {set x nosort}
+  lappend data $x
+  return $data
+}
+
+# Test sorting using a descending index.
+#
+do_test descidx1-3.1 {
+  cksort {SELECT a FROM t1 ORDER BY a}
+} {1 2 3 4 5 6 7 8 nosort}
+do_test descidx1-3.2 {
+  cksort {SELECT a FROM t1 ORDER BY a ASC}
+} {1 2 3 4 5 6 7 8 nosort}
+do_test descidx1-3.3 {
+  cksort {SELECT a FROM t1 ORDER BY a DESC}
+} {8 7 6 5 4 3 2 1 nosort}
+do_test descidx1-3.4 {
+  cksort {SELECT b FROM t1 ORDER BY a}
+} {1 2 3 4 5 6 7 8 nosort}
+do_test descidx1-3.5 {
+  cksort {SELECT b FROM t1 ORDER BY a ASC}
+} {1 2 3 4 5 6 7 8 nosort}
+do_test descidx1-3.6 {
+  cksort {SELECT b FROM t1 ORDER BY a DESC}
+} {8 7 6 5 4 3 2 1 nosort}
+do_test descidx1-3.7 {
+  cksort {SELECT a FROM t1 ORDER BY b}
+} {1 2 3 4 5 6 7 8 nosort}
+do_test descidx1-3.8 {
+  cksort {SELECT a FROM t1 ORDER BY b ASC}
+} {1 2 3 4 5 6 7 8 nosort}
+do_test descidx1-3.9 {
+  cksort {SELECT a FROM t1 ORDER BY b DESC}
+} {8 7 6 5 4 3 2 1 nosort}
+do_test descidx1-3.10 {
+  cksort {SELECT b FROM t1 ORDER BY b}
+} {1 2 3 4 5 6 7 8 nosort}
+do_test descidx1-3.11 {
+  cksort {SELECT b FROM t1 ORDER BY b ASC}
+} {1 2 3 4 5 6 7 8 nosort}
+do_test descidx1-3.12 {
+  cksort {SELECT b FROM t1 ORDER BY b DESC}
+} {8 7 6 5 4 3 2 1 nosort}
+
+do_test descidx1-3.21 {
+  cksort {SELECT a FROM t1 WHERE a>3 AND a<8 ORDER BY a}
+} {4 5 6 7 nosort}
+do_test descidx1-3.22 {
+  cksort {SELECT a FROM t1 WHERE a>3 AND a<8 ORDER BY a ASC}
+} {4 5 6 7 nosort}
+do_test descidx1-3.23 {
+  cksort {SELECT a FROM t1 WHERE a>3 AND a<8 ORDER BY a DESC}
+} {7 6 5 4 nosort}
+do_test descidx1-3.24 {
+  cksort {SELECT b FROM t1 WHERE a>3 AND a<8 ORDER BY a}
+} {4 5 6 7 nosort}
+do_test descidx1-3.25 {
+  cksort {SELECT b FROM t1 WHERE a>3 AND a<8 ORDER BY a ASC}
+} {4 5 6 7 nosort}
+do_test descidx1-3.26 {
+  cksort {SELECT b FROM t1 WHERE a>3 AND a<8 ORDER BY a DESC}
+} {7 6 5 4 nosort}
+
+# Create a table with indices that are descending on some terms and
+# ascending on others.
+#
+ifcapable bloblit {
+  do_test descidx1-4.1 {
+    execsql {
+      CREATE TABLE t2(a INT, b TEXT, c BLOB, d REAL);
+      CREATE INDEX i3 ON t2(a ASC, b DESC, c ASC);
+      CREATE INDEX i4 ON t2(b DESC, a ASC, d DESC);
+      INSERT INTO t2 VALUES(1,'one',x'31',1.0);
+      INSERT INTO t2 VALUES(2,'two',x'3232',2.0);
+      INSERT INTO t2 VALUES(3,'three',x'333333',3.0);
+      INSERT INTO t2 VALUES(4,'four',x'34343434',4.0);
+      INSERT INTO t2 VALUES(5,'five',x'3535353535',5.0);
+      INSERT INTO t2 VALUES(6,'six',x'363636363636',6.0);
+      INSERT INTO t2 VALUES(2,'two',x'323232',2.1);
+      INSERT INTO t2 VALUES(2,'zwei',x'3232',2.2);
+      INSERT INTO t2 VALUES(2,NULL,NULL,2.3);
+      SELECT count(*) FROM t2;
+    }
+  } {9}
+  do_test descidx1-4.2 {
+    execsql {
+      SELECT d FROM t2 ORDER BY a;
+    }
+  } {1.0 2.2 2.0 2.1 2.3 3.0 4.0 5.0 6.0}
+  do_test descidx1-4.3 {
+    execsql {
+      SELECT d FROM t2 WHERE a>=2 ORDER BY a;
+    }
+  } {2.2 2.0 2.1 2.3 3.0 4.0 5.0 6.0}
+  do_test descidx1-4.4 {
+    execsql {
+      SELECT d FROM t2 WHERE a>2 ORDER BY a;
+    }
+  } {3.0 4.0 5.0 6.0}
+  do_test descidx1-4.5 {
+    execsql {
+      SELECT d FROM t2 WHERE a=2 AND b>'two';
+    }
+  } {2.2}
+  do_test descidx1-4.6 {
+    execsql {
+      SELECT d FROM t2 WHERE a=2 AND b>='two';
+    }
+  } {2.2 2.0 2.1}
+  do_test descidx1-4.7 {
+    execsql {
+      SELECT d FROM t2 WHERE a=2 AND b<'two';
+    }
+  } {}
+  do_test descidx1-4.8 {
+    execsql {
+      SELECT d FROM t2 WHERE a=2 AND b<='two';
+    }
+  } {2.0 2.1}
+}
+
+do_test descidx1-5.1 {
+  execsql {
+    CREATE TABLE t3(a,b,c,d);
+    CREATE INDEX t3i1 ON t3(a DESC, b ASC, c DESC, d ASC);
+    INSERT INTO t3 VALUES(0,0,0,0);
+    INSERT INTO t3 VALUES(0,0,0,1);
+    INSERT INTO t3 VALUES(0,0,1,0);
+    INSERT INTO t3 VALUES(0,0,1,1);
+    INSERT INTO t3 VALUES(0,1,0,0);
+    INSERT INTO t3 VALUES(0,1,0,1);
+    INSERT INTO t3 VALUES(0,1,1,0);
+    INSERT INTO t3 VALUES(0,1,1,1);
+    INSERT INTO t3 VALUES(1,0,0,0);
+    INSERT INTO t3 VALUES(1,0,0,1);
+    INSERT INTO t3 VALUES(1,0,1,0);
+    INSERT INTO t3 VALUES(1,0,1,1);
+    INSERT INTO t3 VALUES(1,1,0,0);
+    INSERT INTO t3 VALUES(1,1,0,1);
+    INSERT INTO t3 VALUES(1,1,1,0);
+    INSERT INTO t3 VALUES(1,1,1,1);
+    SELECT count(*) FROM t3;
+  }
+} {16}
+do_test descidx1-5.2 {
+  cksort {
+    SELECT a||b||c||d FROM t3 ORDER BY a,b,c,d;
+  }
+} {0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111 sort}
+do_test descidx1-5.3 {
+  cksort {
+    SELECT a||b||c||d FROM t3 ORDER BY a DESC, b ASC, c DESC, d ASC;
+  }
+} {1010 1011 1000 1001 1110 1111 1100 1101 0010 0011 0000 0001 0110 0111 0100 0101 nosort}
+do_test descidx1-5.4 {
+  cksort {
+    SELECT a||b||c||d FROM t3 ORDER BY a ASC, b DESC, c ASC, d DESC;
+  }
+} {0101 0100 0111 0110 0001 0000 0011 0010 1101 1100 1111 1110 1001 1000 1011 1010 nosort}
+do_test descidx1-5.5 {
+  cksort {
+    SELECT a||b||c FROM t3 WHERE d=0 ORDER BY a DESC, b ASC, c DESC
+  }
+} {101 100 111 110 001 000 011 010 nosort}
+do_test descidx1-5.6 {
+  cksort {
+    SELECT a||b||c FROM t3 WHERE d=0 ORDER BY a ASC, b DESC, c ASC
+  }
+} {010 011 000 001 110 111 100 101 nosort}
+do_test descidx1-5.7 {
+  cksort {
+    SELECT a||b||c FROM t3 WHERE d=0 ORDER BY a ASC, b DESC, c DESC
+  }
+} {011 010 001 000 111 110 101 100 sort}
+do_test descidx1-5.8 {
+  cksort {
+    SELECT a||b||c FROM t3 WHERE d=0 ORDER BY a ASC, b ASC, c ASC
+  }
+} {000 001 010 011 100 101 110 111 sort}
+do_test descidx1-5.9 {
+  cksort {
+    SELECT a||b||c FROM t3 WHERE d=0 ORDER BY a DESC, b DESC, c ASC
+  }
+} {110 111 100 101 010 011 000 001 sort}
+
+# Test the legacy_file_format pragma here because we have access to
+# the get_file_format command.
+#
+ifcapable legacyformat {
+  do_test descidx1-6.1 {
+    db close
+    forcedelete test.db test.db-journal
+    sqlite3 db test.db
+    sqlite3_db_config db LEGACY_FILE_FORMAT
+  } {1}
+} else {
+  do_test descidx1-6.1 {
+    db close
+    forcedelete test.db test.db-journal
+    sqlite3 db test.db
+    sqlite3_db_config db LEGACY_FILE_FORMAT
+  } {0}
+}
+do_test descidx1-6.2 {
+  sqlite3_db_config db LEGACY_FILE_FORMAT 1
+  sqlite3_db_config db LEGACY_FILE_FORMAT
+} {1}
+do_test descidx1-6.3 {
+  execsql {
+    CREATE TABLE t1(a,b,c);
+  }
+  get_file_format
+} {1}
+ifcapable vacuum {
+  # Verify that the file format is preserved across a vacuum.
+  do_test descidx1-6.3.1 {
+    execsql {VACUUM}
+    get_file_format
+  } {1}
+}
+do_test descidx1-6.4 {
+  db close
+  forcedelete test.db test.db-journal
+  sqlite3 db test.db
+  sqlite3_db_config db LEGACY_FILE_FORMAT 0
+  sqlite3_db_config db LEGACY_FILE_FORMAT
+} {0}
+do_test descidx1-6.5 {
+  execsql {
+    CREATE TABLE t1(a,b,c);
+    CREATE INDEX i1 ON t1(a ASC, b DESC, c ASC);
+    INSERT INTO t1 VALUES(1,2,3);
+    INSERT INTO t1 VALUES(1,1,0);
+    INSERT INTO t1 VALUES(1,2,1);
+    INSERT INTO t1 VALUES(1,3,4);
+  }
+  get_file_format
+} {4}
+ifcapable vacuum {
+  # Verify that the file format is preserved across a vacuum.
+  do_test descidx1-6.6 {
+    execsql {VACUUM}
+    get_file_format
+  } {4}
+  do_test descidx1-6.7 {
+    sqlite3_db_config db LEGACY_FILE_FORMAT 1
+    execsql {
+      VACUUM;
+    }
+    get_file_format
+  } {4}
+} 
+
+
+
+finish_test
diff --git a/test/descidx2.test b/test/descidx2.test
new file mode 100644
index 0000000000000000000000000000000000000000..5aefc598ed9e301f830a7b5cf8bfb2e2835ab330
--- /dev/null
+++ b/test/descidx2.test
@@ -0,0 +1,186 @@
+# 2005 December 21
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is descending indices.
+#
+# $Id: descidx2.test,v 1.5 2008/03/19 00:21:31 drh Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Do not use a codec for tests in this file, as the database file is
+# manipulated directly using tcl scripts (using the [hexio_write] command).
+#
+do_not_use_codec
+
+
+#db eval {PRAGMA legacy_file_format=OFF}
+sqlite3_db_config db LEGACY_FILE_FORMAT 0
+
+# This procedure sets the value of the file-format in file 'test.db'
+# to $newval. Also, the schema cookie is incremented.
+# 
+proc set_file_format {newval} {
+  hexio_write test.db 44 [hexio_render_int32 $newval]
+  set schemacookie [hexio_get_int [hexio_read test.db 40 4]]
+  incr schemacookie
+  hexio_write test.db 40 [hexio_render_int32 $schemacookie]
+  return {}
+}
+
+# This procedure returns the value of the file-format in file 'test.db'.
+# 
+proc get_file_format {{fname test.db}} {
+  return [hexio_get_int [hexio_read $fname 44 4]]
+}
+
+
+# Verify that the file format starts as 4
+#
+do_test descidx2-1.1 {
+  execsql {
+    CREATE TABLE t1(a,b);
+    CREATE INDEX i1 ON t1(b ASC);
+  }
+  get_file_format
+} {4}
+do_test descidx2-1.2 {
+  execsql {
+    CREATE INDEX i2 ON t1(a DESC);
+  }
+  get_file_format
+} {4}
+
+# Before adding any information to the database, set the file format
+# back to three.  Then close and reopen the database.  With the file
+# format set to three, SQLite should ignore the DESC argument on the
+# index.
+#
+do_test descidx2-2.0 {
+  set_file_format 3
+  db close
+  sqlite3 db test.db
+  get_file_format
+} {3}
+
+# Put some information in the table and verify that the DESC
+# on the index is ignored.
+#
+do_test descidx2-2.1 {
+  execsql {
+    INSERT INTO t1 VALUES(1,1);
+    INSERT INTO t1 VALUES(2,2);
+    INSERT INTO t1 SELECT a+2, a+2 FROM t1;
+    INSERT INTO t1 SELECT a+4, a+4 FROM t1;
+    SELECT b FROM t1 WHERE a>3 AND a<7;
+  }
+} {4 5 6}
+do_test descidx2-2.2 {
+  execsql {
+    SELECT a FROM t1 WHERE b>3 AND b<7;
+  }
+} {4 5 6}
+do_test descidx2-2.3 {
+  execsql {
+    SELECT b FROM t1 WHERE a>=3 AND a<7;
+  }
+} {3 4 5 6}
+do_test descidx2-2.4 {
+  execsql {
+    SELECT b FROM t1 WHERE a>3 AND a<=7;
+  }
+} {4 5 6 7}
+do_test descidx2-2.5 {
+  execsql {
+    SELECT b FROM t1 WHERE a>=3 AND a<=7;
+  }
+} {3 4 5 6 7}
+do_test descidx2-2.6 {
+  execsql {
+    SELECT a FROM t1 WHERE b>=3 AND b<=7;
+  }
+} {3 4 5 6 7}
+
+# This procedure executes the SQL.  Then it checks to see if the OP_Sort
+# opcode was executed.  If an OP_Sort did occur, then "sort" is appended
+# to the result.  If no OP_Sort happened, then "nosort" is appended.
+#
+# This procedure is used to check to make sure sorting is or is not
+# occurring as expected.
+#
+proc cksort {sql} {
+  set ::sqlite_sort_count 0
+  set data [execsql $sql]
+  if {$::sqlite_sort_count} {set x sort} {set x nosort}
+  lappend data $x
+  return $data
+}
+
+# Test sorting using a descending index.
+#
+do_test descidx2-3.1 {
+  cksort {SELECT a FROM t1 ORDER BY a}
+} {1 2 3 4 5 6 7 8 nosort}
+do_test descidx2-3.2 {
+  cksort {SELECT a FROM t1 ORDER BY a ASC}
+} {1 2 3 4 5 6 7 8 nosort}
+do_test descidx2-3.3 {
+  cksort {SELECT a FROM t1 ORDER BY a DESC}
+} {8 7 6 5 4 3 2 1 nosort}
+do_test descidx2-3.4 {
+  cksort {SELECT b FROM t1 ORDER BY a}
+} {1 2 3 4 5 6 7 8 nosort}
+do_test descidx2-3.5 {
+  cksort {SELECT b FROM t1 ORDER BY a ASC}
+} {1 2 3 4 5 6 7 8 nosort}
+do_test descidx2-3.6 {
+  cksort {SELECT b FROM t1 ORDER BY a DESC}
+} {8 7 6 5 4 3 2 1 nosort}
+do_test descidx2-3.7 {
+  cksort {SELECT a FROM t1 ORDER BY b}
+} {1 2 3 4 5 6 7 8 nosort}
+do_test descidx2-3.8 {
+  cksort {SELECT a FROM t1 ORDER BY b ASC}
+} {1 2 3 4 5 6 7 8 nosort}
+do_test descidx2-3.9 {
+  cksort {SELECT a FROM t1 ORDER BY b DESC}
+} {8 7 6 5 4 3 2 1 nosort}
+do_test descidx2-3.10 {
+  cksort {SELECT b FROM t1 ORDER BY b}
+} {1 2 3 4 5 6 7 8 nosort}
+do_test descidx2-3.11 {
+  cksort {SELECT b FROM t1 ORDER BY b ASC}
+} {1 2 3 4 5 6 7 8 nosort}
+do_test descidx2-3.12 {
+  cksort {SELECT b FROM t1 ORDER BY b DESC}
+} {8 7 6 5 4 3 2 1 nosort}
+
+do_test descidx2-3.21 {
+  cksort {SELECT a FROM t1 WHERE a>3 AND a<8 ORDER BY a}
+} {4 5 6 7 nosort}
+do_test descidx2-3.22 {
+  cksort {SELECT a FROM t1 WHERE a>3 AND a<8 ORDER BY a ASC}
+} {4 5 6 7 nosort}
+do_test descidx2-3.23 {
+  cksort {SELECT a FROM t1 WHERE a>3 AND a<8 ORDER BY a DESC}
+} {7 6 5 4 nosort}
+do_test descidx2-3.24 {
+  cksort {SELECT b FROM t1 WHERE a>3 AND a<8 ORDER BY a}
+} {4 5 6 7 nosort}
+do_test descidx2-3.25 {
+  cksort {SELECT b FROM t1 WHERE a>3 AND a<8 ORDER BY a ASC}
+} {4 5 6 7 nosort}
+do_test descidx2-3.26 {
+  cksort {SELECT b FROM t1 WHERE a>3 AND a<8 ORDER BY a DESC}
+} {7 6 5 4 nosort}
+
+finish_test
diff --git a/test/descidx3.test b/test/descidx3.test
new file mode 100644
index 0000000000000000000000000000000000000000..30dd8f895cd5b188e883e0262bed1bb878e13e39
--- /dev/null
+++ b/test/descidx3.test
@@ -0,0 +1,155 @@
+# 2006 January 02
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is descending indices.
+#
+# $Id: descidx3.test,v 1.6 2008/03/19 00:21:31 drh Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Do not use a codec for tests in this file, as the database file is
+# manipulated directly using tcl scripts (using the [hexio_write] command).
+#
+do_not_use_codec
+
+ifcapable !bloblit {
+  finish_test
+  return
+}
+#db eval {PRAGMA legacy_file_format=OFF}
+sqlite3_db_config db LEGACY_FILE_FORMAT 0
+
+# This procedure sets the value of the file-format in file 'test.db'
+# to $newval. Also, the schema cookie is incremented.
+# 
+proc set_file_format {newval} {
+  hexio_write test.db 44 [hexio_render_int32 $newval]
+  set schemacookie [hexio_get_int [hexio_read test.db 40 4]]
+  incr schemacookie
+  hexio_write test.db 40 [hexio_render_int32 $schemacookie]
+  return {}
+}
+
+# This procedure returns the value of the file-format in file 'test.db'.
+# 
+proc get_file_format {{fname test.db}} {
+  return [hexio_get_int [hexio_read $fname 44 4]]
+}
+
+# Verify that the file format starts as 4.
+#
+do_test descidx3-1.1 {
+  execsql {
+    CREATE TABLE t1(i INTEGER PRIMARY KEY,a,b,c,d);
+    CREATE INDEX t1i1 ON t1(a DESC, b ASC, c DESC);
+    CREATE INDEX t1i2 ON t1(b DESC, c ASC, d DESC);
+  }
+  get_file_format
+} {4}
+
+# Put some information in the table and verify that the descending
+# index actually works.
+#
+do_test descidx3-2.1 {
+  execsql {
+    INSERT INTO t1 VALUES(1, NULL, NULL, NULL, NULL);
+    INSERT INTO t1 VALUES(2, 2, 2, 2, 2);
+    INSERT INTO t1 VALUES(3, 3, 3, 3, 3);
+    INSERT INTO t1 VALUES(4, 2.5, 2.5, 2.5, 2.5);
+    INSERT INTO t1 VALUES(5, -5, -5, -5, -5);
+    INSERT INTO t1 VALUES(6, 'six', 'six', 'six', 'six');
+    INSERT INTO t1 VALUES(7, x'77', x'77', x'77', x'77');
+    INSERT INTO t1 VALUES(8, 'eight', 'eight', 'eight', 'eight');
+    INSERT INTO t1 VALUES(9, x'7979', x'7979', x'7979', x'7979');
+    SELECT count(*) FROM t1;
+  }
+} 9
+do_test descidx3-2.2 {
+  execsql {
+    SELECT i FROM t1 ORDER BY a;
+  }
+} {1 5 2 4 3 8 6 7 9}
+do_test descidx3-2.3 {
+  execsql {
+    SELECT i FROM t1 ORDER BY a DESC;
+  }
+} {9 7 6 8 3 4 2 5 1}
+
+# The "natural" order for the index is decreasing
+do_test descidx3-2.4 {
+  execsql {
+    SELECT i FROM t1 WHERE a<=x'7979';
+  }
+} {9 7 6 8 3 4 2 5}
+do_test descidx3-2.5 {
+  execsql {
+    SELECT i FROM t1 WHERE a>-99;
+  }
+} {9 7 6 8 3 4 2 5}
+
+# Even when all values of t1.a are the same, sorting by A returns
+# the rows in reverse order because this the natural order of the
+# index.
+#
+do_test descidx3-3.1 {
+  execsql {
+    UPDATE t1 SET a=1;
+    SELECT i FROM t1 ORDER BY a;
+  }
+} {9 7 6 8 3 4 2 5 1}
+do_test descidx3-3.2 {
+  execsql {
+    SELECT i FROM t1 WHERE a=1 AND b>0 AND b<'zzz'
+  }
+} {2 4 3 8 6}
+do_test descidx3-3.3 {
+  execsql {
+    SELECT i FROM t1 WHERE b>0 AND b<'zzz'
+  }
+} {6 8 3 4 2}
+do_test descidx3-3.4 {
+  execsql {
+    SELECT i FROM t1 WHERE a=1 AND b>-9999 AND b<x'ffffffff'
+  }
+} {5 2 4 3 8 6 7 9}
+do_test descidx3-3.5 {
+  execsql {
+    SELECT i FROM t1 WHERE b>-9999 AND b<x'ffffffff'
+  }
+} {9 7 6 8 3 4 2 5}
+
+ifcapable subquery {
+  # If the subquery capability is not compiled in to the binary, then
+  # the IN(...) operator is not available. Hence these tests cannot be 
+  # run.
+  do_test descidx3-4.1 {
+    lsort [execsql {
+      UPDATE t1 SET a=2 WHERE i<6;
+      SELECT i FROM t1 WHERE a IN (1,2) AND b>0 AND b<'zzz';
+    }]
+  } {2 3 4 6 8}
+  do_test descidx3-4.2 {
+    execsql {
+      UPDATE t1 SET a=1;
+      SELECT i FROM t1 WHERE a IN (1,2) AND b>0 AND b<'zzz';
+    }
+  } {2 4 3 8 6}
+  do_test descidx3-4.3 {
+    execsql {
+      UPDATE t1 SET b=2;
+      SELECT i FROM t1 WHERE a IN (1,2) AND b>0 AND b<'zzz';
+    }
+  } {9 7 6 8 3 4 2 5 1}
+}
+
+finish_test
diff --git a/test/diskfull.test b/test/diskfull.test
new file mode 100644
index 0000000000000000000000000000000000000000..391dfb4fcf440f7515f1dbb1f3f812737408f561
--- /dev/null
+++ b/test/diskfull.test
@@ -0,0 +1,115 @@
+# 2001 October 12
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing for correct handling of disk full
+# errors.
+# 
+# $Id: diskfull.test,v 1.8 2008/07/12 14:52:20 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+set sqlite_io_error_persist 0
+set sqlite_io_error_hit 0
+set sqlite_io_error_pending 0
+do_test diskfull-1.1 {
+  execsql {
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(randstr(1000,1000));
+    INSERT INTO t1 SELECT * FROM t1;
+    INSERT INTO t1 SELECT * FROM t1;
+    INSERT INTO t1 SELECT * FROM t1;
+    INSERT INTO t1 SELECT * FROM t1;
+    CREATE INDEX t1i1 ON t1(x);
+    CREATE TABLE t2 AS SELECT x AS a, x AS b FROM t1;
+    CREATE INDEX t2i1 ON t2(b);
+  }
+} {}
+set sqlite_diskfull_pending 0
+integrity_check diskfull-1.2
+do_test diskfull-1.3 {
+  set sqlite_diskfull_pending 1
+  catchsql {
+    INSERT INTO t1 SELECT * FROM t1;
+  }
+} {1 {database or disk is full}}
+set sqlite_diskfull_pending 0
+integrity_check diskfull-1.4
+do_test diskfull-1.5 {
+  set sqlite_diskfull_pending 1
+  catchsql {
+    DELETE FROM t1;
+  }
+} {1 {database or disk is full}}
+set sqlite_diskfull_pending 0
+set sqlite_io_error_hit 0
+integrity_check diskfull-1.6
+
+proc do_diskfull_test {prefix sql} {
+  set ::go 1
+  set ::sql $sql
+  set ::i 1
+  while {$::go} {
+    incr ::i
+    do_test ${prefix}.$::i.1 {
+      set ::sqlite_diskfull_pending $::i
+      set ::sqlite_diskfull 0
+      set r [catchsql $::sql]
+      if {!$::sqlite_diskfull} {
+        set r {1 {database or disk is full}}
+        set ::go 0
+      }
+      if {$r=="1 {disk I/O error}"} {
+        set r {1 {database or disk is full}}
+      }
+      set r
+    } {1 {database or disk is full}}
+    set ::sqlite_diskfull_pending 0
+    db close
+    sqlite3 db test.db
+    integrity_check ${prefix}.$::i.2
+  }
+}
+
+do_diskfull_test diskfull-2 VACUUM
+
+# db close
+# forcedelete test.db
+# forcedelete test.db-journal
+# sqlite3 db test.db
+# 
+# do_test diskfull-3.1 {
+#   execsql {
+#     PRAGMA default_cache_size = 10;
+#     CREATE TABLE t3(a, b, UNIQUE(a, b));
+#     INSERT INTO t3 VALUES( randstr(100, 100), randstr(100, 100) );
+#     INSERT INTO t3 SELECT randstr(100, 100), randstr(100, 100) FROM t3;
+#     INSERT INTO t3 SELECT randstr(100, 100), randstr(100, 100) FROM t3;
+#     INSERT INTO t3 SELECT randstr(100, 100), randstr(100, 100) FROM t3;
+#     INSERT INTO t3 SELECT randstr(100, 100), randstr(100, 100) FROM t3;
+#     INSERT INTO t3 SELECT randstr(100, 100), randstr(100, 100) FROM t3;
+#     INSERT INTO t3 SELECT randstr(100, 100), randstr(100, 100) FROM t3;
+#     INSERT INTO t3 SELECT randstr(100, 100), randstr(100, 100) FROM t3;
+#     UPDATE t3 
+#     SET b = (SELECT a FROM t3 WHERE rowid = (SELECT max(rowid)-1 FROM t3))
+#     WHERE rowid = (SELECT max(rowid) FROM t3);
+#     PRAGMA cache_size;
+#   }
+# } {10}
+# 
+# do_diskfull_test diskfull-3.2 {
+#   BEGIN;
+#     INSERT INTO t3 VALUES( randstr(100, 100), randstr(100, 100) );
+#     UPDATE t3 SET a = b;
+#   COMMIT;
+# }
+
+finish_test
diff --git a/test/distinct.test b/test/distinct.test
new file mode 100644
index 0000000000000000000000000000000000000000..760b2341f5dc67e9f1fbfb37fb9cc27b556ed02e
--- /dev/null
+++ b/test/distinct.test
@@ -0,0 +1,408 @@
+# 2011 July 1
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is the DISTINCT modifier.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !compound {
+  finish_test
+  return
+}
+
+set testprefix distinct
+
+
+proc is_distinct_noop {sql} {
+  set sql1 $sql
+  set sql2 [string map {DISTINCT ""} $sql]
+
+  set program1 [list]
+  set program2 [list]
+  db eval "EXPLAIN $sql1" {
+    if {$opcode != "Noop" && $opcode != "Explain"} { lappend program1 $opcode }
+  }
+  db eval "EXPLAIN $sql2" {
+    if {$opcode != "Noop" && $opcode != "Explain"} { lappend program2 $opcode }
+  }
+  return [expr {$program1==$program2}]
+}
+
+proc do_distinct_noop_test {tn sql} {
+  uplevel [list do_test $tn [list is_distinct_noop $sql] 1]
+}
+proc do_distinct_not_noop_test {tn sql} {
+  uplevel [list do_test $tn [list is_distinct_noop $sql] 0]
+}
+
+proc do_temptables_test {tn sql temptables} {
+  uplevel [list do_test $tn [subst -novar {
+    set ret ""
+    db eval "EXPLAIN [set sql]" {
+      if {$opcode == "OpenEphemeral" || $opcode == "SorterOpen"} { 
+        if {$p5!=8 && $p5!=0} { error "p5 = $p5" }
+        if {$p5==8} {
+          lappend ret hash
+        } else {
+          lappend ret btree
+        }
+      }
+    }
+    set ret
+  }] $temptables]
+}
+
+
+#-------------------------------------------------------------------------
+# The following tests - distinct-1.* - check that the planner correctly 
+# detects cases where a UNIQUE index means that a DISTINCT clause is 
+# redundant. Currently the planner only detects such cases when there
+# is a single table in the FROM clause.
+#
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b, c, d);
+  CREATE UNIQUE INDEX i1 ON t1(b, c);
+  CREATE UNIQUE INDEX i2 ON t1(d COLLATE nocase);
+
+  CREATE TABLE t2(x INTEGER PRIMARY KEY, y);
+
+  CREATE TABLE t3(c1 PRIMARY KEY NOT NULL, c2 NOT NULL);
+  CREATE INDEX i3 ON t3(c2);
+
+  CREATE TABLE t4(a, b NOT NULL, c NOT NULL, d NOT NULL);
+  CREATE UNIQUE INDEX t4i1 ON t4(b, c);
+  CREATE UNIQUE INDEX t4i2 ON t4(d COLLATE nocase);
+}
+foreach {tn noop sql} {
+
+  1.1 0   "SELECT DISTINCT b, c FROM t1"
+  1.2 1   "SELECT DISTINCT b, c FROM t4"
+  2.1 0   "SELECT DISTINCT c FROM t1 WHERE b = ?"
+  2.2 1   "SELECT DISTINCT c FROM t4 WHERE b = ?"
+  3   1   "SELECT DISTINCT rowid FROM t1"
+  4   1   "SELECT DISTINCT rowid, a FROM t1"
+  5   1   "SELECT DISTINCT x FROM t2"
+  6   1   "SELECT DISTINCT * FROM t2"
+  7   1   "SELECT DISTINCT * FROM (SELECT * FROM t2)"
+
+  8.1 0   "SELECT DISTINCT * FROM t1"
+  8.2 1   "SELECT DISTINCT * FROM t4"
+
+  8   0   "SELECT DISTINCT a, b FROM t1"
+
+  9   0   "SELECT DISTINCT c FROM t1 WHERE b IN (1,2)"
+  10  0   "SELECT DISTINCT c FROM t1"
+  11  0   "SELECT DISTINCT b FROM t1"
+
+  12.1 0   "SELECT DISTINCT a, d FROM t1"
+  12.2 0   "SELECT DISTINCT a, d FROM t4"
+  13.1 0   "SELECT DISTINCT a, b, c COLLATE nocase FROM t1"
+  13.2 0   "SELECT DISTINCT a, b, c COLLATE nocase FROM t4"
+  14.1 0   "SELECT DISTINCT a, d COLLATE nocase FROM t1"
+  14.2 1   "SELECT DISTINCT a, d COLLATE nocase FROM t4"
+
+  15   0   "SELECT DISTINCT a, d COLLATE binary FROM t1"
+  16.1 0   "SELECT DISTINCT a, b, c COLLATE binary FROM t1"
+  16.2 1   "SELECT DISTINCT a, b, c COLLATE binary FROM t4"
+
+  16  0   "SELECT DISTINCT t1.rowid FROM t1, t2"
+  17  0   { /* Technically, it would be possible to detect that DISTINCT
+            ** is a no-op in cases like the following. But SQLite does not
+            ** do so. */
+            SELECT DISTINCT t1.rowid FROM t1, t2 WHERE t1.rowid=t2.rowid }
+
+  18  1   "SELECT DISTINCT c1, c2 FROM t3"
+  19  1   "SELECT DISTINCT c1 FROM t3"
+  20  1   "SELECT DISTINCT * FROM t3"
+  21  0   "SELECT DISTINCT c2 FROM t3"
+
+  22  0   "SELECT DISTINCT * FROM (SELECT 1, 2, 3 UNION SELECT 4, 5, 6)"
+
+  24  0   "SELECT DISTINCT rowid/2 FROM t1"
+  25  1   "SELECT DISTINCT rowid/2, rowid FROM t1"
+  26.1  0   "SELECT DISTINCT rowid/2, b FROM t1 WHERE c = ?"
+  26.2  1   "SELECT DISTINCT rowid/2, b FROM t4 WHERE c = ?"
+} {
+  if {$noop} {
+    do_distinct_noop_test 1.$tn $sql
+  } else {
+    do_distinct_not_noop_test 1.$tn $sql
+  }
+}
+
+#-------------------------------------------------------------------------
+# The following tests - distinct-2.* - test cases where an index is
+# used to deliver results in order of the DISTINCT expressions. 
+#
+drop_all_tables
+do_execsql_test 2.0 {
+  CREATE TABLE t1(a, b, c);
+
+  CREATE INDEX i1 ON t1(a, b);
+  CREATE INDEX i2 ON t1(b COLLATE nocase, c COLLATE nocase);
+
+  INSERT INTO t1 VALUES('a', 'b', 'c');
+  INSERT INTO t1 VALUES('A', 'B', 'C');
+  INSERT INTO t1 VALUES('a', 'b', 'c');
+  INSERT INTO t1 VALUES('A', 'B', 'C');
+}
+
+foreach {tn sql temptables res} {
+  1   "a, b FROM t1"                                       {}      {A B a b}
+  2   "b, a FROM t1"                                       {}      {B A b a}
+  3   "a, b, c FROM t1"                                    {hash}  {A B C a b c}
+  4   "a, b, c FROM t1 ORDER BY a, b, c"                   {btree} {A B C a b c}
+  5   "b FROM t1 WHERE a = 'a'"                            {}      {b}
+  6   "b FROM t1 ORDER BY +b COLLATE binary"          {btree hash} {B b}
+  7   "a FROM t1"                                          {}      {A a}
+  8   "b COLLATE nocase FROM t1"                           {}      {b}
+  9   "b COLLATE nocase FROM t1 ORDER BY b COLLATE nocase" {}      {b}
+} {
+  do_execsql_test    2.$tn.1 "SELECT DISTINCT $sql" $res
+  do_temptables_test 2.$tn.2 "SELECT DISTINCT $sql" $temptables
+}
+
+do_execsql_test 2.A {
+  SELECT (SELECT DISTINCT o.a FROM t1 AS i) FROM t1 AS o ORDER BY rowid;
+} {a A a A}
+
+do_test 3.0 {
+  db eval {
+    CREATE TABLE t3(a INTEGER, b INTEGER, c, UNIQUE(a,b));
+    INSERT INTO t3 VALUES
+        (null, null, 1),
+        (null, null, 2),
+        (null, 3, 4),
+        (null, 3, 5),
+        (6, null, 7),
+        (6, null, 8);
+    SELECT DISTINCT a, b FROM t3 ORDER BY +a, +b;
+  }
+} {{} {} {} 3 6 {}}
+do_test 3.1 {
+  regexp {OpenEphemeral} [db eval {
+    EXPLAIN SELECT DISTINCT a, b FROM t3 ORDER BY +a, +b;
+  }]
+} {0}
+
+#-------------------------------------------------------------------------
+# Ticket  [fccbde530a6583bf2748400919f1603d5425995c] (2014-01-08)
+# The logic that computes DISTINCT sometimes thinks that a zeroblob()
+# and a blob of all zeros are different when they should be the same. 
+#
+do_execsql_test 4.1 {
+  DROP TABLE IF EXISTS t1;
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t1(a INTEGER);
+  INSERT INTO t1 VALUES(3);
+  INSERT INTO t1 VALUES(2);
+  INSERT INTO t1 VALUES(1);
+  INSERT INTO t1 VALUES(2);
+  INSERT INTO t1 VALUES(3);
+  INSERT INTO t1 VALUES(1);
+  CREATE TABLE t2(x);
+  INSERT INTO t2
+    SELECT DISTINCT
+      CASE a WHEN 1 THEN x'0000000000'
+             WHEN 2 THEN zeroblob(5)
+             ELSE 'xyzzy' END
+      FROM t1;
+  SELECT quote(x) FROM t2 ORDER BY 1;
+} {'xyzzy' X'0000000000'}
+
+#----------------------------------------------------------------------------
+# Ticket [c5ea805691bfc4204b1cb9e9aa0103bd48bc7d34] (2014-12-04)
+# Make sure that DISTINCT works together with ORDER BY and descending
+# indexes.
+#
+do_execsql_test 5.1 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(x);
+  INSERT INTO t1(x) VALUES(3),(1),(5),(2),(6),(4),(5),(1),(3);
+  CREATE INDEX t1x ON t1(x DESC);
+  SELECT DISTINCT x FROM t1 ORDER BY x ASC;
+} {1 2 3 4 5 6}
+do_execsql_test 5.2 {
+  SELECT DISTINCT x FROM t1 ORDER BY x DESC;
+} {6 5 4 3 2 1}
+do_execsql_test 5.3 {
+  SELECT DISTINCT x FROM t1 ORDER BY x;
+} {1 2 3 4 5 6}
+do_execsql_test 5.4 {
+  DROP INDEX t1x;
+  CREATE INDEX t1x ON t1(x ASC);
+  SELECT DISTINCT x FROM t1 ORDER BY x ASC;
+} {1 2 3 4 5 6}
+do_execsql_test 5.5 {
+  SELECT DISTINCT x FROM t1 ORDER BY x DESC;
+} {6 5 4 3 2 1}
+do_execsql_test 5.6 {
+  SELECT DISTINCT x FROM t1 ORDER BY x;
+} {1 2 3 4 5 6}
+
+#-------------------------------------------------------------------------
+# 2015-11-23.  Problem discovered by Kostya Serebryany using libFuzzer
+#
+db close
+sqlite3 db :memory:
+do_execsql_test 6.1 {
+  CREATE TABLE jjj(x);
+  SELECT (SELECT 'mmm' UNION SELECT DISTINCT max(name) ORDER BY 1) 
+    FROM sqlite_master;
+} {jjj}
+do_execsql_test 6.2 {
+  CREATE TABLE nnn(x);
+  SELECT (SELECT 'mmm' UNION SELECT DISTINCT max(name) ORDER BY 1) 
+    FROM sqlite_master;
+} {mmm}
+
+#-------------------------------------------------------------------------
+# Ticket [9c944882]
+#
+reset_db
+do_execsql_test 7.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY);
+  CREATE TABLE t3(a INTEGER PRIMARY KEY);
+
+  CREATE TABLE t4(x);
+  CREATE TABLE t5(y);
+  
+  INSERT INTO t5 VALUES(1), (2), (2);
+  INSERT INTO t1 VALUES(2);
+  INSERT INTO t3 VALUES(2);
+  INSERT INTO t4 VALUES(2);
+}
+
+do_execsql_test 7.1 {
+  WITH t2(b) AS (
+    SELECT DISTINCT y FROM t5 ORDER BY y
+  )
+  SELECT * FROM 
+    t4 CROSS JOIN t3 CROSS JOIN t1 
+  WHERE (t1.a=t3.a) AND (SELECT count(*) FROM t2 AS y WHERE t4.x!='abc')=t1.a
+} {2 2 2}
+
+# 2021-04-06 forum post https://sqlite.org/forum/forumpost/66954e9ece
+reset_db
+do_execsql_test 8.0 {
+  CREATE TABLE person ( pid INT) ;
+  CREATE UNIQUE INDEX idx ON person ( pid ) WHERE pid == 1;
+  INSERT INTO person VALUES (1), (10), (10);
+  SELECT DISTINCT pid FROM person where pid = 10;
+} {10}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 9.0 {
+  CREATE TABLE t1(a, b);
+  INSERT INTO t1 VALUES('a', 'a');
+  INSERT INTO t1 VALUES('a', 'b');
+  INSERT INTO t1 VALUES('a', 'c');
+
+  INSERT INTO t1 VALUES('b', 'a');
+  INSERT INTO t1 VALUES('b', 'b');
+  INSERT INTO t1 VALUES('b', 'c');
+
+  INSERT INTO t1 VALUES('a', 'a');
+  INSERT INTO t1 VALUES('b', 'b');
+
+  INSERT INTO t1 VALUES('A', 'A');
+  INSERT INTO t1 VALUES('B', 'B');
+}
+
+foreach {tn idx} {
+  1 { }
+  2 { CREATE INDEX i1 ON t1(a, b); }
+  3 { CREATE INDEX i1 ON t1(b, a); }
+  4 { CREATE INDEX i1 ON t1(a COLLATE nocase, b COLLATE nocase); }
+  5 { CREATE INDEX i1 ON t1(b COLLATE nocase, a COLLATE nocase); }
+} {
+
+  execsql { DROP INDEX IF EXISTS i1 }
+  execsql $idx
+  
+  do_execsql_test 9.$tn.1 {
+    SELECT DISTINCT a, b FROM t1 ORDER BY a, b
+  } {
+    A A  B B
+    a a  a b  a c
+    b a  b b  b c
+  }
+
+  do_execsql_test 9.$tn.1 {
+    SELECT DISTINCT a COLLATE nocase, b COLLATE nocase FROM t1 
+    ORDER BY a COLLATE nocase, b COLLATE nocase
+  } {
+    a a  a b  a c
+    b a  b b  b c
+  }
+}
+
+# 2023-03-16
+# https://sqlite.org/forum/forumpost/16ce2bb7a639e29b
+# ticket c36cdb4afd504dc1
+# ticket 4051a7f931d9ba24
+# ticket d6fd512f50513ab7
+#
+do_execsql_test 10.1 {
+  SELECT  DISTINCT
+    1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
+    1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
+    1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
+    1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
+    1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
+    1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
+    1,  1,  1,  1,  1
+  ORDER  BY
+   'x','x','x','x','x','x','x','x','x','x',
+   'x','x','x','x','x','x','x','x','x','x',
+   'x','x','x','x','x','x','x','x','x','x',
+   'x','x','x','x','x','x','x','x','x','x',
+   'x','x','x','x','x','x','x','x','x','x',
+   'x','x','x','x','x','x','x','x','x','x',
+   'x','x','x','x';
+} {1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1}
+do_execsql_test 10.2 {
+  EXPLAIN
+  SELECT  DISTINCT
+    1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
+    1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
+    1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
+    1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
+    1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
+    1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
+    1,  1,  1,  1,  1
+  ORDER  BY
+   'x','x','x','x','x','x','x','x','x','x',
+   'x','x','x','x','x','x','x','x','x','x',
+   'x','x','x','x','x','x','x','x','x','x',
+   'x','x','x','x','x','x','x','x','x','x',
+   'x','x','x','x','x','x','x','x','x','x',
+   'x','x','x','x','x','x','x','x','x','x',
+   'x','x','x','x';
+} {/0 Init 0 /}
+do_execsql_test 10.3 {
+  EXPLAIN  CREATE  TABLE t2 AS  SELECT  DISTINCT ':memory:', 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7 ORDER  BY '%J%j%w%s', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', '%J%j%w%s', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 42e-300, 'unixepoch', 'unixepoch', 'unixepoch' LIMIT 0xda;
+} {/0 Init 0/}
+do_execsql_test 10.4 {
+  DROP TABLE IF EXISTS t0;
+  CREATE  TABLE t0 AS  SELECT  DISTINCT 0xda, 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 0xda-0xda-42e-300, 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0', 'lit0' ORDER  BY '%%', '%%', '%%', '%%', '%%', '%%', '%%', '%%', '%%', '%%', '%%', '%%', '%%', '%%', '%%', '%Y-%m-%d', '%%', '%%', '%%', '%%', '%%', '%%', '%%', '%%', '%%', '%%', 'lit0', '%%', '%%', '%%', '%%', '%%', '%%', '%%', '%%', '%%', '%%', '%%', '%%', '%%', 'auto', '%%', '%%', '%%', '%%', '%%', '%%', '%%', '%%', '%%', '%%', '%%', ':memory:', '%%', '%%', '%%', '%%', '%%', '%%', '%%', '%%', '%%', '%%', '';
+  SELECT count(*) FROM t0;
+} {1}
+do_execsql_test 10.5 {
+  DROP TABLE IF EXISTS t2;
+  CREATE  TABLE t2 AS  SELECT  DISTINCT ':memory:', 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 0.0*7/0, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7 ORDER  BY '%J%j%w%s', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', '%J%j%w%s', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 'unixepoch', 42e-300, 'unixepoch', 'unixepoch', 'unixepoch' LIMIT 0xda;
+  SELECT count(*) FROM t2;
+} {1}
+
+finish_test
diff --git a/test/distinct2.test b/test/distinct2.test
new file mode 100644
index 0000000000000000000000000000000000000000..980b0b1e3a8ebd0edf1ff60f812783695af169ac
--- /dev/null
+++ b/test/distinct2.test
@@ -0,0 +1,383 @@
+# 2016-04-15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is DISTINCT queries using the skip-ahead 
+# optimization.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+set testprefix distinct2
+
+do_execsql_test 100 {
+  CREATE TABLE t1(x INTEGER PRIMARY KEY);
+  INSERT INTO t1 VALUES(0),(1),(2);
+  CREATE TABLE t2 AS
+     SELECT DISTINCT a.x AS aa, b.x AS bb
+      FROM t1 a, t1 b;
+  SELECT *, '|' FROM t2 ORDER BY aa, bb;
+} {0 0 | 0 1 | 0 2 | 1 0 | 1 1 | 1 2 | 2 0 | 2 1 | 2 2 |}
+do_execsql_test 110 {
+  DROP TABLE t2;
+  CREATE TABLE t2 AS
+     SELECT DISTINCT a.x AS aa, b.x AS bb
+       FROM t1 a, t1 b
+      WHERE a.x IN t1 AND b.x IN t1;
+  SELECT *, '|' FROM t2 ORDER BY aa, bb;
+} {0 0 | 0 1 | 0 2 | 1 0 | 1 1 | 1 2 | 2 0 | 2 1 | 2 2 |}
+do_execsql_test 120 {
+  CREATE TABLE t102 (i0 TEXT UNIQUE NOT NULL);
+  INSERT INTO t102 VALUES ('0'),('1'),('2');
+  DROP TABLE t2;
+  CREATE TABLE t2 AS
+    SELECT DISTINCT * 
+    FROM t102 AS t0 
+    JOIN t102 AS t4 ON (t2.i0 IN t102)
+    NATURAL JOIN t102 AS t3
+    JOIN t102 AS t1 ON (t0.i0 IN t102)
+    JOIN t102 AS t2 ON (t2.i0=+t0.i0 OR (t0.i0<>500 AND t2.i0=t1.i0));
+  SELECT *, '|' FROM t2 ORDER BY 1, 2, 3, 4, 5;
+} {0 0 0 0 | 0 0 1 0 | 0 0 1 1 | 0 0 2 0 | 0 0 2 2 | 0 1 0 0 | 0 1 1 0 | 0 1 1 1 | 0 1 2 0 | 0 1 2 2 | 0 2 0 0 | 0 2 1 0 | 0 2 1 1 | 0 2 2 0 | 0 2 2 2 | 1 0 0 0 | 1 0 0 1 | 1 0 1 1 | 1 0 2 1 | 1 0 2 2 | 1 1 0 0 | 1 1 0 1 | 1 1 1 1 | 1 1 2 1 | 1 1 2 2 | 1 2 0 0 | 1 2 0 1 | 1 2 1 1 | 1 2 2 1 | 1 2 2 2 | 2 0 0 0 | 2 0 0 2 | 2 0 1 1 | 2 0 1 2 | 2 0 2 2 | 2 1 0 0 | 2 1 0 2 | 2 1 1 1 | 2 1 1 2 | 2 1 2 2 | 2 2 0 0 | 2 2 0 2 | 2 2 1 1 | 2 2 1 2 | 2 2 2 2 |}
+
+do_execsql_test 400 {
+  CREATE TABLE t4(a,b,c,d,e,f,g,h,i,j);
+  INSERT INTO t4 VALUES(0,1,2,3,4,5,6,7,8,9);
+  INSERT INTO t4 SELECT * FROM t4;
+  INSERT INTO t4 SELECT * FROM t4;
+  CREATE INDEX t4x ON t4(c,d,e);
+  SELECT DISTINCT a,b,c FROM t4 WHERE a=0 AND b=1;
+} {0 1 2}
+do_execsql_test 410 {
+  SELECT DISTINCT a,b,c,d FROM t4 WHERE a=0 AND b=1;
+} {0 1 2 3}
+do_execsql_test 411 {
+  SELECT DISTINCT d,a,b,c FROM t4 WHERE a=0 AND b=1;
+} {3 0 1 2}
+do_execsql_test 420 {
+  SELECT DISTINCT a,b,c,d,e FROM t4 WHERE a=0 AND b=1;
+} {0 1 2 3 4}
+do_execsql_test 430 {
+  SELECT DISTINCT a,b,c,d,e,f FROM t4 WHERE a=0 AND b=1;
+} {0 1 2 3 4 5}
+
+do_execsql_test 500 {
+  CREATE TABLE t5(a INT, b INT);
+  CREATE UNIQUE INDEX t5x ON t5(a+b);
+  INSERT INTO t5(a,b) VALUES(0,0),(1,0),(1,1),(0,3);
+  CREATE TEMP TABLE out AS SELECT DISTINCT a+b FROM t5;
+  SELECT * FROM out ORDER BY 1;
+} {0 1 2 3}
+
+do_execsql_test 600 {
+  CREATE TABLE t6a(x INTEGER PRIMARY KEY);
+  INSERT INTO t6a VALUES(1);
+  CREATE TABLE t6b(y INTEGER PRIMARY KEY);
+  INSERT INTO t6b VALUES(2),(3);
+  SELECT DISTINCT x, x FROM t6a, t6b;
+} {1 1}
+
+do_execsql_test 700 {
+  CREATE TABLE t7(a, b, c);
+  WITH s(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM s WHERE (i+1)<200
+  )
+  INSERT INTO t7 SELECT i/100, i/50, i FROM s;
+}
+do_execsql_test 710 {
+  SELECT DISTINCT a, b FROM t7;
+} {
+  0 0    0 1
+  1 2    1 3
+}
+do_execsql_test 720 {
+  SELECT DISTINCT a, b+1 FROM t7;
+} {
+  0 1    0 2
+  1 3    1 4
+}
+do_execsql_test 730 {
+  CREATE INDEX i7 ON t7(a, b+1);
+  ANALYZE;
+  SELECT DISTINCT a, b+1 FROM t7;
+} {
+  0 1    0 2
+  1 3    1 4
+}
+
+do_execsql_test 800 {
+  CREATE TABLE t8(a, b, c);
+  WITH s(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM s WHERE (i+1)<100
+  )
+  INSERT INTO t8 SELECT i/40, i/20, i/40 FROM s;
+}
+
+do_execsql_test 820 {
+  SELECT DISTINCT a, b, c FROM t8;
+} {
+  0 0 0    0 1 0
+  1 2 1    1 3 1
+  2 4 2
+}
+
+do_execsql_test 820 {
+  SELECT DISTINCT a, b, c FROM t8 WHERE b=3;
+} {1 3 1}
+
+do_execsql_test 830 {
+  CREATE INDEX i8 ON t8(a, c);
+  ANALYZE;
+  SELECT DISTINCT a, b, c FROM t8 WHERE b=3;
+} {1 3 1}
+
+do_execsql_test 900 {
+  CREATE TABLE t9(v);
+  INSERT INTO t9 VALUES 
+    ('abcd'), ('Abcd'), ('aBcd'), ('ABcd'), ('abCd'), ('AbCd'), ('aBCd'), 
+    ('ABCd'), ('abcD'), ('AbcD'), ('aBcD'), ('ABcD'), ('abCD'), ('AbCD'), 
+    ('aBCD'), ('ABCD'),
+    ('wxyz'), ('Wxyz'), ('wXyz'), ('WXyz'), ('wxYz'), ('WxYz'), ('wXYz'), 
+    ('WXYz'), ('wxyZ'), ('WxyZ'), ('wXyZ'), ('WXyZ'), ('wxYZ'), ('WxYZ'), 
+    ('wXYZ'), ('WXYZ');
+}
+
+do_execsql_test 910 {
+  SELECT DISTINCT v COLLATE NOCASE, v FROM t9 ORDER BY +v;
+} {
+  ABCD ABCD ABCd ABCd ABcD ABcD ABcd ABcd AbCD
+  AbCD AbCd AbCd AbcD AbcD Abcd Abcd
+  WXYZ WXYZ WXYz WXYz WXyZ WXyZ WXyz WXyz WxYZ
+  WxYZ WxYz WxYz WxyZ WxyZ Wxyz Wxyz
+  aBCD aBCD aBCd aBCd aBcD aBcD aBcd aBcd abCD
+  abCD abCd abCd abcD abcD abcd abcd
+  wXYZ wXYZ wXYz wXYz wXyZ wXyZ wXyz wXyz wxYZ
+  wxYZ wxYz wxYz wxyZ wxyZ wxyz wxyz
+}
+
+do_execsql_test 920 {
+  CREATE INDEX i9 ON t9(v COLLATE NOCASE, v);
+  ANALYZE;
+
+  SELECT DISTINCT v COLLATE NOCASE, v FROM t9 ORDER BY +v;
+} {
+  ABCD ABCD ABCd ABCd ABcD ABcD ABcd ABcd AbCD
+  AbCD AbCd AbCd AbcD AbcD Abcd Abcd
+  WXYZ WXYZ WXYz WXYz WXyZ WXyZ WXyz WXyz WxYZ
+  WxYZ WxYz WxYz WxyZ WxyZ Wxyz Wxyz
+  aBCD aBCD aBCd aBCd aBcD aBcD aBcd aBcd abCD
+  abCD abCd abCd abcD abcD abcd abcd
+  wXYZ wXYZ wXYz wXYz wXyZ wXyZ wXyz wXyz wxYZ
+  wxYZ wxYz wxYz wxyZ wxyZ wxyz wxyz
+}
+
+# Ticket https://sqlite.org/src/info/ef9318757b152e3a on 2017-11-21
+# Incorrect result due to a skip-ahead-distinct optimization on a
+# join where no rows of the inner loop appear in the result set.
+#
+db close
+sqlite3 db :memory:
+do_execsql_test 1000 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b INTEGER);
+  CREATE INDEX t1b ON t1(b);
+  CREATE TABLE t2(x INTEGER PRIMARY KEY, y INTEGER);
+  CREATE INDEX t2y ON t2(y);
+  WITH RECURSIVE c(x) AS (VALUES(0) UNION ALL SELECT x+1 FROM c WHERE x<49)
+    INSERT INTO t1(b) SELECT x/10 - 1 FROM c;
+  WITH RECURSIVE c(x) AS (VALUES(-1) UNION ALL SELECT x+1 FROM c WHERE x<19)
+    INSERT INTO t2(x,y) SELECT x, 1 FROM c;
+  SELECT DISTINCT y FROM t1, t2 WHERE b=x AND b<>-1;
+  ANALYZE;
+  SELECT DISTINCT y FROM t1, t2 WHERE b=x AND b<>-1;
+} {1 1}
+db close
+sqlite3 db :memory:
+do_execsql_test 1010 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b INTEGER);
+  CREATE INDEX t1b ON t1(b);
+  CREATE TABLE t2(x INTEGER PRIMARY KEY, y INTEGER);
+  CREATE INDEX t2y ON t2(y);
+  WITH RECURSIVE c(x) AS (VALUES(0) UNION ALL SELECT x+1 FROM c WHERE x<49)
+    INSERT INTO t1(b) SELECT -(x/10 - 1) FROM c;
+  WITH RECURSIVE c(x) AS (VALUES(-1) UNION ALL SELECT x+1 FROM c WHERE x<19)
+    INSERT INTO t2(x,y) SELECT -x, 1 FROM c;
+  SELECT DISTINCT y FROM t1, t2 WHERE b=x AND b<>1 ORDER BY y DESC;
+  ANALYZE;
+  SELECT DISTINCT y FROM t1, t2 WHERE b=x AND b<>1 ORDER BY y DESC;
+} {1 1}
+db close
+sqlite3 db :memory:
+do_execsql_test 1020 {
+  CREATE TABLE t1(a, b);
+  CREATE INDEX t1a ON t1(a, b);
+  -- Lots of rows of (1, 'no'), followed by a single (1, 'yes').
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<100)
+    INSERT INTO t1(a, b) SELECT 1, 'no' FROM c;
+  INSERT INTO t1(a, b) VALUES(1, 'yes');
+  CREATE TABLE t2(x PRIMARY KEY);
+  INSERT INTO t2 VALUES('yes');
+  SELECT DISTINCT a FROM t1, t2 WHERE x=b;
+  ANALYZE;
+  SELECT DISTINCT a FROM t1, t2 WHERE x=b;
+} {1 1}
+
+#-------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 2000 {
+  CREATE TABLE t0 (c0, c1, c2, PRIMARY KEY (c0, c1));
+  CREATE TABLE t1 (c2);
+  INSERT INTO t0(c2) VALUES (0),(1),(3),(4),(5),(6),(7),(8),(9),(10),(11);
+  INSERT INTO t0(c1) VALUES ('a');
+  INSERT INTO t1(c2) VALUES (0);
+}
+do_execsql_test 2010 {
+  SELECT DISTINCT t0.c0, t1._rowid_, t0.c1 FROM t1 CROSS JOIN t0 ORDER BY t0.c0;
+} {{} 1 {} {} 1 a}
+do_execsql_test 1.2 {
+  ANALYZE;
+}
+do_execsql_test 2020 {
+  SELECT DISTINCT t0.c0, t1._rowid_, t0.c1 FROM t1 CROSS JOIN t0 ORDER BY t0.c0;
+} {{} 1 {} {} 1 a}
+
+
+do_execsql_test 2030 {
+  CREATE TABLE t2(a, b, c);
+  CREATE INDEX t2ab ON t2(a, b);
+  
+  WITH c(i) AS (SELECT 1 UNION ALL SELECT i+1 FROM c WHERE i<64)
+    INSERT INTO t2 SELECT 'one', i%2, 'one' FROM c;
+
+  WITH c(i) AS (SELECT 1 UNION ALL SELECT i+1 FROM c WHERE i<64)
+    INSERT INTO t2 SELECT 'two', i%2, 'two' FROM c;
+
+  CREATE TABLE t3(x INTEGER PRIMARY KEY);
+  INSERT INTO t3 VALUES(1);
+
+  ANALYZE;
+}
+do_execsql_test 2040 {
+  SELECT DISTINCT a, b, x FROM t3 CROSS JOIN t2 ORDER BY a, +b; 
+} {
+  one 0 1
+  one 1 1
+  two 0 1
+  two 1 1
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 3000 {
+  CREATE TABLE t0 (c0, c1 NOT NULL DEFAULT 1, c2, PRIMARY KEY (c0, c1));
+  INSERT INTO t0(c2) VALUES (NULL), (NULL), (NULL), (NULL), (NULL), (NULL), (NULL), (NULL), (NULL), (NULL), (NULL);
+  INSERT INTO t0(c2) VALUES('a');
+}
+
+do_execsql_test 3010 {
+  SELECT DISTINCT * FROM t0 WHERE NULL IS t0.c0;
+} {
+  {} 1 {}
+  {} 1 a
+}
+
+do_execsql_test 3020 {
+  ANALYZE;
+}
+
+do_execsql_test 3030 {
+  SELECT DISTINCT * FROM t0 WHERE NULL IS c0;
+} {
+  {} 1 {}
+  {} 1 a
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+
+do_execsql_test 4010 {
+  CREATE TABLE t1(a, b COLLATE RTRIM);
+  INSERT INTO t1 VALUES(1, ''), (2, ' '), (3, '  ');
+}
+do_execsql_test 4020 {
+  SELECT b FROM t1 UNION SELECT 1;
+} {1 {  }}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 5010 {
+  CREATE TABLE cnt(a);
+  WITH RECURSIVE cnt2(x) AS (
+    VALUES(1) UNION ALL SELECT x+1 FROM cnt2 WHERE x<50
+  )
+  INSERT INTO cnt SELECT x FROM cnt2;   
+}
+
+do_execsql_test 5020 {
+  SELECT DISTINCT abs(random())%5 AS r FROM cnt ORDER BY r; 
+} {0 1 2 3 4}
+
+do_execsql_test 5030 {
+  SELECT abs(random())%5 AS r FROM cnt GROUP BY 1 ORDER BY 1; 
+} {0 1 2 3 4}
+
+do_execsql_test 5040 {
+  SELECT a FROM cnt WHERE a>45 GROUP BY 1;
+} {46 47 48 49 50}
+
+
+# 2024-06-03 dbsqlfuzz 8a44f675401a8b1f68a43bf813c4f4f72ad8f0ea
+# Use of uninitialized bytecode register due to the call-function-once
+# optimization at check-in 663f5dd32d9db832
+#
+db null NULL
+do_execsql_test 5050 {
+  CREATE TABLE t0(a TEXT); INSERT INTO t0 VALUES('abcd');
+  CREATE TABLE t1(b TEXT);
+  CREATE TABLE t2(c TEXT);
+  CREATE TABLE t3(d TEXT); INSERT INTO t3 VALUES('wxyz');
+  CREATE VIEW  v4(e) AS SELECT (SELECT t2.c FROM t0, t1 GROUP BY 1) FROM t2;
+  SELECT v4.e FROM t3 LEFT JOIN v4 ON true GROUP BY 1;
+} NULL
+do_execsql_test 5060 {
+  DROP VIEW v4;
+  CREATE VIEW  v4(e) AS SELECT (SELECT t2.c COLLATE nocase FROM t0, t1 GROUP BY 1) FROM t2;
+  SELECT v4.e FROM t3 LEFT JOIN v4 ON true GROUP BY 1;
+} NULL
+
+do_execsql_test 5070 {
+  DROP VIEW v4;
+  CREATE VIEW  v4(e) AS SELECT (SELECT unlikely(t2.c COLLATE nocase) FROM t0, t1 GROUP BY 1) FROM t2;
+  SELECT v4.e FROM t3 LEFT JOIN v4 ON true GROUP BY 1;
+} NULL
+
+# 2024-06-28 dbsqlfuzz 46343912848a603e32c6072cae792eb056bac897
+# Do not call sqlite3ExprToRegister() on an expression that is already
+# a register.
+#
+do_execsql_test 5080 {
+  CREATE TABLE dual(dummy TEXT);
+  INSERT INTO dual VALUES('X');
+  SELECT 11 = (
+                SELECT b
+                  FROM (
+                         SELECT a AS b
+                           FROM dual
+                           LEFT JOIN (SELECT 22 AS a FROM dual)
+                       )
+                 GROUP BY b, b
+              );
+} 0
+
+finish_test
diff --git a/test/distinctagg.test b/test/distinctagg.test
new file mode 100644
index 0000000000000000000000000000000000000000..9eedd35bd2cf34dea7d29da97123f0fea5c18ea6
--- /dev/null
+++ b/test/distinctagg.test
@@ -0,0 +1,224 @@
+# 2005 September 11
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is the DISTINCT modifier on aggregate functions.
+#
+# $Id: distinctagg.test,v 1.3 2009/02/09 13:19:28 drh Exp $
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix distinctagg
+
+do_test distinctagg-1.1 {
+  execsql {
+    CREATE TABLE t1(a,b,c);
+    INSERT INTO t1 VALUES(1,2,3);
+    INSERT INTO t1 VALUES(1,3,4);
+    INSERT INTO t1 VALUES(1,3,5);
+    SELECT count(distinct a),
+           count(distinct b),
+           count(distinct c),
+           count(all a) FROM t1;
+  }
+} {1 2 3 3}
+do_test distinctagg-1.2 {
+  execsql {
+    SELECT b, count(distinct c) FROM t1 GROUP BY b
+  }
+} {2 1 3 2}
+do_test distinctagg-1.3 {
+  execsql {
+    INSERT INTO t1 SELECT a+1, b+3, c+5 FROM t1;
+    INSERT INTO t1 SELECT a+2, b+6, c+10 FROM t1;
+    INSERT INTO t1 SELECT a+4, b+12, c+20 FROM t1;
+    SELECT count(*), count(distinct a), count(distinct b) FROM t1
+  }
+} {24 8 16}
+do_test distinctagg-1.4 {
+  execsql {
+    SELECT a, count(distinct c) FROM t1 GROUP BY a ORDER BY a
+  }
+} {1 3 2 3 3 3 4 3 5 3 6 3 7 3 8 3}
+
+do_test distinctagg-2.1 {
+  catchsql {
+    SELECT count(distinct) FROM t1;
+  }
+} {1 {DISTINCT aggregates must have exactly one argument}}
+do_test distinctagg-2.2 {
+  catchsql {
+    SELECT string_agg(distinct a,b) FROM t1;
+  }
+} {1 {DISTINCT aggregates must have exactly one argument}}
+
+#--------------------------------------------------------------------------
+reset_db
+do_execsql_test 3.0 {
+  CREATE TABLE t1(a, b, c);
+  CREATE TABLE t2(d, e, f);
+
+  INSERT INTO t1 VALUES (1, 1, 1);
+  INSERT INTO t1 VALUES (2, 2, 2);
+  INSERT INTO t1 VALUES (3, 3, 3);
+  INSERT INTO t1 VALUES (4, 1, 4);
+  INSERT INTO t1 VALUES (5, 2, 1);
+  INSERT INTO t1 VALUES (5, 3, 2);
+  INSERT INTO t1 VALUES (4, 1, 3);
+  INSERT INTO t1 VALUES (3, 2, 4);
+  INSERT INTO t1 VALUES (2, 3, 1);
+  INSERT INTO t1 VALUES (1, 1, 2);
+
+  INSERT INTO t2 VALUES('a', 'a', 'a');
+  INSERT INTO t2 VALUES('b', 'b', 'b');
+  INSERT INTO t2 VALUES('c', 'c', 'c');
+
+  CREATE INDEX t1a ON t1(a);
+  CREATE INDEX t1bc ON t1(b, c);
+}
+
+foreach {tn use_eph sql res} {
+  1  0  "SELECT count(DISTINCT a) FROM t1"                5
+  2  0  "SELECT count(DISTINCT b) FROM t1"                3
+  3  1  "SELECT count(DISTINCT c) FROM t1"                4
+  4  0  "SELECT count(DISTINCT c) FROM t1 WHERE b=3"      3
+  5  0  "SELECT count(DISTINCT rowid) FROM t1"           10
+  6  0  "SELECT count(DISTINCT a) FROM t1, t2"            5
+  7  0  "SELECT count(DISTINCT a) FROM t2, t1"            5
+  8  1  "SELECT count(DISTINCT a+b) FROM t1, t2, t2, t2"  6
+  9  0  "SELECT count(DISTINCT c) FROM t1 WHERE c=2"      1
+ 10  0  "SELECT count(DISTINCT t1.rowid) FROM t1, t2"    10
+} {
+  do_test 3.$tn.1 {
+    set prg [db eval "EXPLAIN $sql"]
+    set idx [lsearch $prg OpenEphemeral]
+    expr {$idx>=0}
+  } $use_eph
+
+  do_execsql_test 3.$tn.2 $sql $res
+}
+
+do_execsql_test 3.10 {
+  SELECT a, count(DISTINCT b) FROM t1 GROUP BY a;
+} {
+  1 1  2 2  3 2  4 1  5 2
+}
+
+#--------------------------------------------------------------------------
+reset_db
+do_execsql_test 3.0 {
+  CREATE TABLE t1(a, b, c);
+  CREATE INDEX t1a ON t1(a);
+  CREATE INDEX t1bc ON t1(b, c);
+
+  INSERT INTO t1 VALUES(1, 'A', 1);
+  INSERT INTO t1 VALUES(1, 'A', 1);
+  INSERT INTO t1 VALUES(2, 'A', 2);
+  INSERT INTO t1 VALUES(2, 'A', 2);
+  INSERT INTO t1 VALUES(1, 'B', 1);
+  INSERT INTO t1 VALUES(2, 'B', 2);
+  INSERT INTO t1 VALUES(3, 'B', 3);
+  INSERT INTO t1 VALUES(NULL, 'B', NULL);
+  INSERT INTO t1 VALUES(NULL, 'C', NULL);
+  INSERT INTO t1 VALUES('d', 'D', 'd');
+
+  CREATE TABLE t2(d, e, f);
+  CREATE INDEX t2def ON t2(d, e, f);
+
+  INSERT INTO t2 VALUES(1, 1, 'a');
+  INSERT INTO t2 VALUES(1, 1, 'a');
+  INSERT INTO t2 VALUES(1, 2, 'a');
+  INSERT INTO t2 VALUES(1, 2, 'a');
+  INSERT INTO t2 VALUES(1, 2, 'b');
+  INSERT INTO t2 VALUES(1, 3, 'b');
+  INSERT INTO t2 VALUES(1, 3, 'a');
+  INSERT INTO t2 VALUES(1, 3, 'b');
+  INSERT INTO t2 VALUES(2, 3, 'x');
+  INSERT INTO t2 VALUES(2, 3, 'y');
+  INSERT INTO t2 VALUES(2, 3, 'z');
+
+  CREATE TABLE t3(x, y, z);
+  INSERT INTO t3 VALUES(1,1,1);
+  INSERT INTO t3 VALUES(2,2,2);
+
+  CREATE TABLE t4(a);
+  CREATE INDEX t4a ON t4(a);
+  INSERT INTO t4 VALUES(1), (2), (2), (3), (1);
+}
+
+foreach {tn use_eph sql res} {
+  1 0  "SELECT count(DISTINCT c) FROM t1 GROUP BY b"   {2 3 0 1}
+  2 1  "SELECT count(DISTINCT a) FROM t1 GROUP BY b"   {2 3 0 1}
+  3 1  "SELECT count(DISTINCT a) FROM t1 GROUP BY b+c" {0 1 1 1 1}
+
+  4 0  "SELECT count(DISTINCT f) FROM t2 GROUP BY d, e" {1 2 2 3}
+  5 1  "SELECT count(DISTINCT f) FROM t2 GROUP BY d" {2 3}
+  6 0  "SELECT count(DISTINCT f) FROM t2 WHERE d IS 1 GROUP BY e" {1 2 2}
+
+  7 0  "SELECT count(DISTINCT a) FROM t1" {4}
+  8 0  "SELECT count(DISTINCT a) FROM t4" {3}
+} {
+  do_test 4.$tn.1 {
+    set prg [db eval "EXPLAIN $sql"]
+    set idx [lsearch $prg OpenEphemeral]
+    expr {$idx>=0}
+  } $use_eph
+
+  do_execsql_test 4.$tn.2 $sql $res
+}
+
+
+set t3root [db one {SELECT rootpage FROM sqlite_schema WHERE name='t3'}]
+foreach {tn use_t3 sql res} {
+  1 1 "SELECT count(*) FROM t3"   2
+  2 0 "SELECT count(*) FROM t1"   10
+  2 1 "SELECT count(DISTINCT a) FROM t1, t3" 4
+  3 1 "SELECT count(DISTINCT a) FROM t1 LEFT JOIN t3" 4
+  4 1 "SELECT count(DISTINCT a) FROM t1 LEFT JOIN t3 WHERE t3.x=1" 4
+  5 1 "SELECT count(DISTINCT a) FROM t1 LEFT JOIN t3 WHERE t3.x=0" 0
+  6 1 "SELECT count(DISTINCT a) FROM t1 LEFT JOIN t3 ON (t3.x=0)"  4
+  7 1 "SELECT count(DISTINCT x) FROM t1 LEFT JOIN t3" 2
+  8 1 "SELECT count(DISTINCT x) FROM t1 LEFT JOIN t3 WHERE t3.x=1" 1
+  9 1 "SELECT count(DISTINCT x) FROM t1 LEFT JOIN t3 WHERE t3.x=0" 0
+ 10 1 "SELECT count(DISTINCT x) FROM t1 LEFT JOIN t3 ON (t3.x=0)"  0
+
+} {
+  unset -nocomplain a
+  do_test 5.$tn.1 {
+    set bUse 0
+    db eval "EXPLAIN $sql" a {
+      if {$a(opcode)=="OpenRead" && $a(p2)==$t3root} {set bUse 1}
+    }
+    set bUse
+  } $use_t3
+
+  do_execsql_test 5.$tn.2 $sql $res
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 6.0 {
+  CREATE TABLE t1(a, b);
+  CREATE TABLE t2(c, d);
+  INSERT INTO t1 VALUES(123,456);
+  INSERT INTO t2 VALUES(123,456);
+}
+do_execsql_test 6.1 {
+  SELECT count(DISTINCT c) FROM t1 LEFT JOIN t2;
+} {1}
+
+do_execsql_test 7.0 {
+  CREATE TABLE v1 ( v2 UNIQUE, v3 AS( TYPEOF ( NULL ) ) UNIQUE ); 
+  SELECT COUNT ( DISTINCT TRUE ) FROM v1 GROUP BY likelihood ( v3 , 0.100000 );
+}
+
+
+finish_test
diff --git a/test/e_blobbytes.test b/test/e_blobbytes.test
new file mode 100644
index 0000000000000000000000000000000000000000..c24318c565aceed3ff4efc60fe1089372cc45927
--- /dev/null
+++ b/test/e_blobbytes.test
@@ -0,0 +1,79 @@
+# 2014 October 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix e_blobbytes
+
+ifcapable !incrblob {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE TABLE q1(r INTEGER PRIMARY KEY, s TEXT);
+  WITH d(a, b) AS (
+    SELECT 0, '' 
+      UNION ALL
+    SELECT a+1, b||'.' FROM d WHERE a<10000
+  )
+  INSERT INTO q1 SELECT * FROM d;
+}
+
+
+# EVIDENCE-OF: R-07796-55423 Returns the size in bytes of the BLOB
+# accessible via the successfully opened BLOB handle in its only
+# argument.
+#
+proc check_blob_size {tn rowid bytes} {
+  uplevel [list do_test $tn [subst -nocommands {
+    sqlite3_blob_open db main q1 s $rowid 0 B
+    set res [sqlite3_blob_bytes [set B]]
+    sqlite3_blob_close [set B]
+    set res
+  }] $bytes]
+}
+check_blob_size 1.1 43 43
+check_blob_size 1.2 391 391
+check_blob_size 1.3 6349 6349
+check_blob_size 1.4 2621 2621
+check_blob_size 1.5 7771 7771
+check_blob_size 1.6 7949 7949
+check_blob_size 1.7 4374 4374
+check_blob_size 1.8 2578 2578
+check_blob_size 1.9 7004 7004
+check_blob_size 1.10 2180 2180
+check_blob_size 1.11 3796 3796
+check_blob_size 1.12 7101 7101
+check_blob_size 1.13 7449 7449
+check_blob_size 1.14 7224 7224
+check_blob_size 1.15 3038 3038
+check_blob_size 1.16 1083 1083
+check_blob_size 1.17 5157 5157
+check_blob_size 1.18 6686 6686
+check_blob_size 1.19 6592 6592
+check_blob_size 1.20 0 0
+
+
+# EVIDENCE-OF: R-53088-19343 The incremental blob I/O routines can only
+# read or overwriting existing blob content; they cannot change the size
+# of a blob.
+#
+#   Also demonstrated in other e_blobXXX.test files.
+#
+do_test 2.1 {
+  sqlite3_blob_open db main q1 s 86 1 B
+  list [catch { sqlite3_blob_write $B 86 "1" 1 } msg] $msg
+} {1 SQLITE_ERROR}
+sqlite3_blob_close $B
+
+finish_test
diff --git a/test/e_blobclose.test b/test/e_blobclose.test
new file mode 100644
index 0000000000000000000000000000000000000000..40291cf03677a656960ec7e5ccbc1f9550522405
--- /dev/null
+++ b/test/e_blobclose.test
@@ -0,0 +1,175 @@
+# 2014 October 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix e_blobclose
+
+ifcapable !incrblob {
+  finish_test
+  return
+}
+
+set dots [string repeat . 40]
+do_execsql_test 1.0 {
+  CREATE TABLE x1(a INTEGER PRIMARY KEY, b DOTS);
+  INSERT INTO x1 VALUES(-1, $dots);
+  INSERT INTO x1 VALUES(-10, $dots);
+  INSERT INTO x1 VALUES(-100, $dots);
+  INSERT INTO x1 VALUES(-1000, $dots);
+  INSERT INTO x1 VALUES(-10000, $dots);
+}
+
+# EVIDENCE-OF: R-03145-46390 This function closes an open BLOB handle.
+#
+#   It's not clear how to test that a blob handle really is closed.
+#   Attempting to use a closed blob handle will likely crash the process.
+#   Assume here that if the SHARED lock on the db file is released,
+#   the blob handle has been closed.
+#
+do_execsql_test 1.1 { PRAGMA lock_status } {main unlocked temp closed}
+sqlite3_blob_open db main x1 b -1 0 B
+do_execsql_test 1.2 { PRAGMA lock_status } {main shared temp closed}
+sqlite3_blob_close $B
+do_execsql_test 1.3 { PRAGMA lock_status } {main unlocked temp closed}
+
+
+# EVIDENCE-OF: R-34027-00617 If the blob handle being closed was opened
+# for read-write access, and if the database is in auto-commit mode and
+# there are no other open read-write blob handles or active write
+# statements, the current transaction is committed.
+#
+#   2.1.*: Transaction is not committed if there are other open 
+#          read-write blob handles.
+#
+#   2.2.*: Transaction is not committed if not in auto-commit mode.
+#
+#   2.3.*: Active write statements.
+#
+do_test 2.1.1 {
+  sqlite3_blob_open db main x1 b -100 1 B1
+  sqlite3_blob_open db main x1 b -1000 1 B2
+  sqlite3_blob_open db main x1 b -10000 1 B3
+  sqlite3_blob_open db main x1 b -10000 0 B4      ;# B4 is read-only!
+  execsql { PRAGMA lock_status }
+} {main reserved temp closed}
+do_test 2.1.2 {
+  sqlite3_blob_close $B1 
+  execsql { PRAGMA lock_status }
+} {main reserved temp closed}
+do_test 2.1.3 {
+  sqlite3_blob_close $B2 
+  execsql { PRAGMA lock_status }
+} {main reserved temp closed}
+do_test 2.1.4 {
+  sqlite3_blob_close $B3 
+  execsql { PRAGMA lock_status }
+} {main shared temp closed}
+do_test 2.1.5 {
+  sqlite3_blob_close $B4 
+  execsql { PRAGMA lock_status }
+} {main unlocked temp closed}
+
+do_test 2.2.1 {
+  sqlite3_blob_open db main x1 b -100 1 B1
+  execsql { PRAGMA lock_status }
+} {main reserved temp closed}
+do_test 2.2.2 {
+  execsql { BEGIN }
+  sqlite3_blob_close $B1 
+  execsql { PRAGMA lock_status }
+} {main reserved temp closed}
+do_test 2.2.3 {
+  execsql { COMMIT }
+  execsql { PRAGMA lock_status }
+} {main unlocked temp closed}
+
+proc val {} { 
+  sqlite3_blob_close $::B 
+  db eval { PRAGMA lock_status }
+}
+db func val val
+do_test 2.3.1 {
+  sqlite3_blob_open db main x1 b -100 1 B
+  execsql { PRAGMA lock_status }
+} {main reserved temp closed}
+do_test 2.3.2 {
+  execsql { INSERT INTO x1 VALUES(15, val()) }
+  execsql { PRAGMA lock_status }
+} {main unlocked temp closed}
+do_test 2.3.3 {
+  execsql { SELECT * FROM x1 WHERE a = 15 }
+} {15 {main reserved temp closed}}
+
+# A reader does not inhibit commit.
+do_test 2.3.4 {
+  sqlite3_blob_open db main x1 b -100 1 B
+  execsql { PRAGMA lock_status }
+} {main reserved temp closed}
+do_test 2.3.5 {
+  execsql { SELECT a, val() FROM x1 LIMIT 1 }
+} {-10000 {main shared temp closed}}
+
+
+do_test 3.1 {
+  sqlite3_blob_open db main x1 b -10 1 B
+  execsql {
+    INSERT INTO x1 VALUES(1, 'abc');
+    SELECT * FROM x1 WHERE a=1;
+  }
+} {1 abc}
+do_test 3.2 {
+  sqlite3_blob_write $B 0 "abcdefghij" 10
+  execsql { SELECT * FROM x1 WHERE a=-10 }
+} {-10 abcdefghij..............................}
+
+do_test 3.3 {
+  sqlite3 db2 test.db
+  execsql { BEGIN ; SELECT * FROM x1 } db2
+  sqlite3_blob_close $B 
+} {SQLITE_BUSY}
+
+# EVIDENCE-OF: R-41959-38737 Otherwise, if this function is passed a
+# valid open blob handle, the values returned by the sqlite3_errcode()
+# and sqlite3_errmsg() functions are set before returning.
+#
+do_test 3.4 {
+  list [sqlite3_errcode db] [sqlite3_errmsg db]
+} {SQLITE_BUSY {database is locked}}
+
+# EVIDENCE-OF: R-37801-37633 The BLOB handle is closed unconditionally.
+# Even if this routine returns an error code, the handle is still
+# closed.
+#
+#   Test that the lock has been released. Assume this means the handle
+#   is closed, even though blob_close() returned SQLITE_BUSY.
+#
+do_execsql_test 3.4 { PRAGMA lock_status } {main unlocked temp closed}
+
+# EVIDENCE-OF: R-35111-05628 If an error occurs while committing the
+# transaction, an error code is returned and the transaction rolled
+# back.
+#
+#   Row 1 is removed (it was inserted this transaction) and row -10
+#   is restored to its original state. Transaction has been rolled back.
+#
+do_execsql_test 3.5 {
+  SELECT * FROM x1 WHERE a IN (1, -10);
+} {-10 ........................................}
+
+# EVIDENCE-OF: R-25894-51060 Calling this routine with a null pointer
+# (such as would be returned by a failed call to sqlite3_blob_open()) is
+# a harmless no-op.
+#
+do_test 4.0 { sqlite3_blob_close 0 } {}
+
+finish_test
diff --git a/test/e_blobopen.test b/test/e_blobopen.test
new file mode 100644
index 0000000000000000000000000000000000000000..41fd13c674c52279ea4bf5ff72fc4bf6b974ecf7
--- /dev/null
+++ b/test/e_blobopen.test
@@ -0,0 +1,553 @@
+# 2014 October 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix e_blobopen
+
+ifcapable !incrblob {
+  finish_test
+  return
+}
+
+forcedelete test.db2
+
+do_execsql_test 1.0 {
+  ATTACH 'test.db2' AS aux;
+
+  CREATE TABLE main.t1(a INTEGER PRIMARY KEY, b TEXT, c BLOB);
+  CREATE TEMP TABLE t1(a INTEGER PRIMARY KEY, b TEXT, c BLOB);
+  CREATE TABLE aux.t1(a INTEGER PRIMARY KEY, b TEXT, c BLOB);
+
+  CREATE TABLE main.x1(a INTEGER PRIMARY KEY, b TEXT, c BLOB);
+  CREATE TEMP TABLE x2(a INTEGER PRIMARY KEY, b TEXT, c BLOB);
+  CREATE TABLE aux.x3(a INTEGER PRIMARY KEY, b TEXT, c BLOB);
+
+  INSERT INTO main.t1 VALUES(1, 'main one', X'0101');
+  INSERT INTO main.t1 VALUES(2, 'main two', X'0102');
+  INSERT INTO main.t1 VALUES(3, 'main three', X'0103');
+  INSERT INTO main.t1 VALUES(4, 'main four', X'0104');
+  INSERT INTO main.t1 VALUES(5, 'main five', X'0105');
+
+  INSERT INTO main.x1 VALUES(1, 'x main one', X'000101');
+  INSERT INTO main.x1 VALUES(2, 'x main two', X'000102');
+  INSERT INTO main.x1 VALUES(3, 'x main three', X'000103');
+  INSERT INTO main.x1 VALUES(4, 'x main four', X'000104');
+  INSERT INTO main.x1 VALUES(5, 'x main five', X'000105');
+
+  INSERT INTO temp.t1 VALUES(1, 'temp one', X'0201');
+  INSERT INTO temp.t1 VALUES(2, 'temp two', X'0202');
+  INSERT INTO temp.t1 VALUES(3, 'temp three', X'0203');
+  INSERT INTO temp.t1 VALUES(4, 'temp four', X'0204');
+  INSERT INTO temp.t1 VALUES(5, 'temp five', X'0205');
+
+  INSERT INTO temp.x2 VALUES(1, 'x temp one', X'000201');
+  INSERT INTO temp.x2 VALUES(2, 'x temp two', X'000202');
+  INSERT INTO temp.x2 VALUES(3, 'x temp three', X'000203');
+  INSERT INTO temp.x2 VALUES(4, 'x temp four', X'000204');
+  INSERT INTO temp.x2 VALUES(5, 'x temp five', X'000205');
+
+  INSERT INTO aux.t1 VALUES(1, 'aux one', X'0301');
+  INSERT INTO aux.t1 VALUES(2, 'aux two', X'0302');
+  INSERT INTO aux.t1 VALUES(3, 'aux three', X'0303');
+  INSERT INTO aux.t1 VALUES(4, 'aux four', X'0304');
+  INSERT INTO aux.t1 VALUES(5, 'aux five', X'0305');
+
+  INSERT INTO aux.x3 VALUES(1, 'x aux one', X'000301');
+  INSERT INTO aux.x3 VALUES(2, 'x aux two', X'000302');
+  INSERT INTO aux.x3 VALUES(3, 'x aux three', X'000303');
+  INSERT INTO aux.x3 VALUES(4, 'x aux four', X'000304');
+  INSERT INTO aux.x3 VALUES(5, 'x aux five', X'000305');
+}
+
+#-------------------------------------------------------------------------
+# EVIDENCE-OF: R-37639-55938 This interfaces opens a handle to the BLOB
+# located in row iRow, column zColumn, table zTable in database zDb; in
+# other words, the same BLOB that would be selected by: SELECT zColumn
+# FROM zDb.zTable WHERE rowid = iRow;
+#
+proc read_blob {zDb zTab zCol iRow} {
+  sqlite3_blob_open db $zDb $zTab $zCol $iRow 0 B
+  set nByte [sqlite3_blob_bytes $B]
+  set data [sqlite3_blob_read $B 0 $nByte]
+  sqlite3_blob_close $B
+  return $data
+}
+
+do_test 1.1.1 { read_blob main t1 b 1 } "main one"
+do_test 1.1.2 { read_blob main t1 c 1 } "\01\01"
+do_test 1.1.3 { read_blob temp t1 b 1 } "temp one"
+do_test 1.1.4 { read_blob temp t1 c 1 } "\02\01"
+do_test 1.1.6 { read_blob aux  t1 b 1 } "aux one"
+do_test 1.1.7 { read_blob aux  t1 c 1 } "\03\01"
+
+do_test 1.2.1 { read_blob main t1 b 4 } "main four"
+do_test 1.2.2 { read_blob main t1 c 4 } "\01\04"
+do_test 1.2.3 { read_blob temp t1 b 4 } "temp four"
+do_test 1.2.4 { read_blob temp t1 c 4 } "\02\04"
+do_test 1.2.6 { read_blob aux  t1 b 4 } "aux four"
+do_test 1.2.7 { read_blob aux  t1 c 4 } "\03\04"
+
+do_test 1.3.1 { read_blob main x1 b 2 } "x main two"
+do_test 1.3.2 { read_blob main x1 c 2 } "\00\01\02"
+do_test 1.3.3 { read_blob temp x2 b 2 } "x temp two"
+do_test 1.3.4 { read_blob temp x2 c 2 } "\00\02\02"
+do_test 1.3.6 { read_blob aux  x3 b 2 } "x aux two"
+do_test 1.3.7 { read_blob aux  x3 c 2 } "\00\03\02"
+
+#-------------------------------------------------------------------------
+# EVIDENCE-OF: R-27234-05761 Parameter zDb is not the filename that
+# contains the database, but rather the symbolic name of the database.
+# For attached databases, this is the name that appears after the AS
+# keyword in the ATTACH statement. For the main database file, the
+# database name is "main". For TEMP tables, the database name is "temp".
+#
+#   The test cases immediately above demonstrate that the database name
+#   for the main db, for TEMP tables and for those in attached databases
+#   is correct. The following tests check that filenames cannot be
+#   used as well.
+#
+do_test 2.1 {
+  list [catch { sqlite3_blob_open db "test.db" t1 b 1 0 B } msg] $msg
+} {1 SQLITE_ERROR}
+do_test 2.2 {
+  list [catch { sqlite3_blob_open db "test.db2" t1 b 1 0 B } msg] $msg
+} {1 SQLITE_ERROR}
+
+#-------------------------------------------------------------------------
+# EVIDENCE-OF: R-50854-53979 If the flags parameter is non-zero, then
+# the BLOB is opened for read and write access.
+#
+# EVIDENCE-OF: R-03922-41160 If the flags parameter is zero, the BLOB is
+# opened for read-only access.
+#
+foreach {tn iRow flags} {
+  1 1   0
+  2 2   1
+  3 3  -1
+  4 4   2147483647
+  5 5  -2147483648
+} {
+  do_test 3.$tn.1 {
+    sqlite3_blob_open db main x1 c $iRow $flags B
+    set n [sqlite3_blob_bytes $B]
+    sqlite3_blob_read $B 0 $n
+  } [binary format ccc 0 1 $iRow]
+
+  if {$flags==0} {
+    # Blob was opened for read-only access - writing returns an error.
+    do_test 3.$tn.2 {
+      list [catch { sqlite3_blob_write $B 0 xxx 3 } msg] $msg
+    } {1 SQLITE_READONLY}
+
+    do_execsql_test 3.$tn.3 {
+      SELECT c FROM x1 WHERE a=$iRow;
+    } [binary format ccc 0 1 $iRow]
+  } else {
+    # Blob was opened for read/write access - writing succeeds
+    do_test 3.$tn.4 {
+      list [catch { sqlite3_blob_write $B 0 xxx 3 } msg] $msg
+    } {0 {}}
+
+    do_execsql_test 3.$tn.5 {
+      SELECT c FROM x1 WHERE a=$iRow;
+    } {xxx}
+  }
+
+  sqlite3_blob_close $B
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 4.0 {
+  CREATE TABLE t1(x, y);
+  INSERT INTO t1 VALUES('abcd', 152);
+  INSERT INTO t1 VALUES(NULL, X'00010203');
+  INSERT INTO t1 VALUES('', 154.2);
+
+  CREATE TABLE t2(x PRIMARY KEY, y) WITHOUT ROWID;
+  INSERT INTO t2 VALUES(1, 'blob');
+
+  CREATE TABLE t3(a PRIMARY KEY, b, c, d, e, f, UNIQUE(e, f));
+  INSERT INTO t3 VALUES('aaaa', 'bbbb', 'cccc', 'dddd', 'eeee', 'ffff');
+  CREATE INDEX t3b ON t3(b);
+
+  CREATE TABLE p1(x PRIMARY KEY);
+  INSERT INTO p1 VALUES('abc');
+
+  CREATE TABLE c1(a INTEGER PRIMARY KEY, b REFERENCES p1);
+  INSERT INTO c1 VALUES(45, 'abc');
+}
+
+proc test_blob_open {tn zDb zTab zCol iRow flags    errcode errmsg} {
+  global B
+  set B "0x1234"
+
+  if {$errcode=="SQLITE_OK"} {
+    set expected "0 {}"
+  } else {
+    set expected "1 $errcode"
+  }
+
+  set ::res [list [
+    catch { sqlite3_blob_open db $zDb $zTab $zCol $iRow $flags B } msg
+  ] $msg]
+  do_test 4.$tn.1 { set ::res } $expected
+
+  # EVIDENCE-OF: R-08940-21305 Unless it returns SQLITE_MISUSE, this
+  # function sets the database connection error code and message
+  # accessible via sqlite3_errcode() and sqlite3_errmsg() and related
+  # functions.
+  #
+  #   This proc (test_blob_open) is used below to test various error and
+  #   non-error conditions. But never SQLITE_MISUSE conditions. So these
+  #   test cases are considered as partly verifying the requirement above.
+  #   See below for a test of the SQLITE_MISUSE case.
+  #
+  do_test 4.$tn.2 {
+    sqlite3_errcode db
+  } $errcode
+  do_test 4.$tn.3 {
+    sqlite3_errmsg db
+  } $errmsg
+
+  # EVIDENCE-OF: R-31086-35521 On success, SQLITE_OK is returned and the
+  # new BLOB handle is stored in *ppBlob. Otherwise an error code is
+  # returned and, unless the error code is SQLITE_MISUSE, *ppBlob is set
+  # to NULL.
+  #
+  do_test 4.$tn.4 {
+    expr {$B == "0"}
+  } [expr {$errcode != "SQLITE_OK"}]
+
+  # EVIDENCE-OF: R-63421-15521 This means that, provided the API is not
+  # misused, it is always safe to call sqlite3_blob_close() on *ppBlob
+  # after this function it returns.
+  do_test 4.$tn.5 {
+    sqlite3_blob_close $B
+  } {}
+}
+
+# EVIDENCE-OF: R-31204-44780 Database zDb does not exist
+test_blob_open 1 nosuchdb t1 x 1 0 SQLITE_ERROR "no such table: nosuchdb.t1"
+
+# EVIDENCE-OF: R-28676-08005 Table zTable does not exist within database zDb
+test_blob_open 2 main tt1 x 1 0    SQLITE_ERROR "no such table: main.tt1"
+
+# EVIDENCE-OF: R-40134-30296 Table zTable is a WITHOUT ROWID table
+test_blob_open 3 main t2 y 1 0     SQLITE_ERROR \
+    "cannot open table without rowid: t2"
+
+# EVIDENCE-OF: R-56376-21261 Column zColumn does not exist
+test_blob_open 4 main t1 z 2 0     SQLITE_ERROR "no such column: \"z\""
+
+# EVIDENCE-OF: R-28258-23166 Row iRow is not present in the table
+test_blob_open 5 main t1 y 6 0     SQLITE_ERROR "no such rowid: 6"
+
+# EVIDENCE-OF: R-11683-62380 The specified column of row iRow contains a
+# value that is not a TEXT or BLOB value
+test_blob_open 6 main t1 x 2 0 SQLITE_ERROR "cannot open value of type null"
+test_blob_open 7 main t1 y 1 0 SQLITE_ERROR "cannot open value of type integer"
+test_blob_open 8 main t1 y 3 0 SQLITE_ERROR "cannot open value of type real"
+
+# EVIDENCE-OF: R-34146-30782 Column zColumn is part of an index, PRIMARY
+# KEY or UNIQUE constraint and the blob is being opened for read/write
+# access
+#
+# Test cases 8.1.* show that such columns can be opened for read-access. 
+# Tests 8.2.* show that read-write access is different. Columns "c" and "c"
+# are not part of an index, PK or UNIQUE constraint, so they work in both
+# cases.
+#
+test_blob_open 8.1.1 main t3 a 1 0 SQLITE_OK "not an error"
+test_blob_open 8.1.2 main t3 b 1 0 SQLITE_OK "not an error"
+test_blob_open 8.1.3 main t3 c 1 0 SQLITE_OK "not an error"
+test_blob_open 8.1.4 main t3 d 1 0 SQLITE_OK "not an error"
+test_blob_open 8.1.5 main t3 e 1 0 SQLITE_OK "not an error"
+test_blob_open 8.1.6 main t3 f 1 0 SQLITE_OK "not an error"
+
+set cannot "cannot open indexed column for writing"
+test_blob_open 8.2.1 main t3 a 1 8 SQLITE_ERROR $cannot
+test_blob_open 8.2.2 main t3 b 1 8 SQLITE_ERROR $cannot
+test_blob_open 8.2.3 main t3 c 1 8 SQLITE_OK "not an error"
+test_blob_open 8.2.4 main t3 d 1 8 SQLITE_OK "not an error"
+test_blob_open 8.2.5 main t3 e 1 8 SQLITE_ERROR $cannot
+test_blob_open 8.2.6 main t3 f 1 8 SQLITE_ERROR $cannot
+
+# EVIDENCE-OF: R-50117-55204 Foreign key constraints are enabled, column
+# zColumn is part of a child key definition and the blob is being opened
+# for read/write access
+#
+#   9.1: FK disabled, read-only access.
+#   9.2: FK disabled, read-only access.
+#   9.3: FK enabled, read/write access.
+#   9.4: FK enabled, read/write access.
+#
+test_blob_open 9.1 main c1 b 45 0 SQLITE_OK "not an error"
+test_blob_open 9.2 main c1 b 45 1 SQLITE_OK "not an error"
+execsql { PRAGMA foreign_keys = ON }
+test_blob_open 9.3 main c1 b 45 0 SQLITE_OK "not an error"
+test_blob_open 9.4 main c1 b 45 1 SQLITE_ERROR \
+        "cannot open foreign key column for writing"
+
+#-------------------------------------------------------------------------
+# EVIDENCE-OF: R-08940-21305 Unless it returns SQLITE_MISUSE, this
+# function sets the database connection error code and message
+# accessible via sqlite3_errcode() and sqlite3_errmsg() and related
+# functions.
+#
+#   This requirement is partially verified by the many uses of test
+#   command [test_blob_open] above. All that is left is to verify the
+#   SQLITE_MISUSE case.
+#
+#   SQLITE_MISUSE is only returned if SQLITE_ENABLE_API_ARMOR is defined
+#   during compilation.
+#
+ifcapable api_armor {
+  sqlite3_blob_open db main t1 x 1 0 B
+
+  do_test 10.1.1 {
+    list [catch {sqlite3_blob_open $B main t1 x 1 0 B2} msg] $msg
+  } {1 SQLITE_MISUSE}
+  do_test 10.1.2 {
+    list [sqlite3_errcode db] [sqlite3_errmsg db]
+  } {SQLITE_OK {not an error}}
+  sqlite3_blob_close $B
+
+  do_test 10.2.1 {
+    list [catch {sqlite3_blob_open db main {} x 1 0 B} msg] $msg
+  } {1 SQLITE_MISUSE}
+  do_test 10.2.2 {
+    list [sqlite3_errcode db] [sqlite3_errmsg db]
+  } {SQLITE_OK {not an error}}
+}
+
+#-------------------------------------------------------------------------
+# EVIDENCE-OF: R-50542-62589 If the row that a BLOB handle points to is
+# modified by an UPDATE, DELETE, or by ON CONFLICT side-effects then the
+# BLOB handle is marked as "expired". This is true if any column of the
+# row is changed, even a column other than the one the BLOB handle is
+# open on.
+#
+# EVIDENCE-OF: R-48367-20048 Calls to sqlite3_blob_read() and
+# sqlite3_blob_write() for an expired BLOB handle fail with a return
+# code of SQLITE_ABORT.
+#
+#   11.2: read-only handle, DELETE.
+#   11.3: read-only handle, UPDATE.
+#   11.4: read-only handle, REPLACE.
+#   11.5: read/write handle, DELETE.
+#   11.6: read/write handle, UPDATE.
+#   11.7: read/write handle, REPLACE.
+#
+do_execsql_test 11.1 {
+  CREATE TABLE b1(a INTEGER PRIMARY KEY, b, c UNIQUE);
+  INSERT INTO b1 VALUES(1, '1234567890', 1);
+  INSERT INTO b1 VALUES(2, '1234567890', 2);
+  INSERT INTO b1 VALUES(3, '1234567890', 3);
+  INSERT INTO b1 VALUES(4, '1234567890', 4);
+  INSERT INTO b1 VALUES(5, '1234567890', 5);
+  INSERT INTO b1 VALUES(6, '1234567890', 6);
+
+  CREATE TABLE b2(a INTEGER PRIMARY KEY, b, c UNIQUE);
+  INSERT INTO b2 VALUES(1, '1234567890', 1);
+  INSERT INTO b2 VALUES(2, '1234567890', 2);
+  INSERT INTO b2 VALUES(3, '1234567890', 3);
+  INSERT INTO b2 VALUES(4, '1234567890', 4);
+  INSERT INTO b2 VALUES(5, '1234567890', 5);
+  INSERT INTO b2 VALUES(6, '1234567890', 6);
+}
+
+do_test 11.2.1 {
+  sqlite3_blob_open db main b1 b 2 0 B
+  sqlite3_blob_read $B 0 10
+} {1234567890}
+do_test 11.2.2 {
+  # Deleting a different row does not invalidate the blob handle.
+  execsql { DELETE FROM b1 WHERE a = 1 }
+  sqlite3_blob_read $B 0 10
+} {1234567890}
+do_test 11.2.3 {
+  execsql { DELETE FROM b1 WHERE a = 2 }
+  list [catch { sqlite3_blob_read $B 0 10 } msg] $msg
+} {1 SQLITE_ABORT}
+do_test 11.2.4 {
+  sqlite3_blob_close $B
+} {}
+
+do_test 11.3.1 {
+  sqlite3_blob_open db main b1 b 3 0 B
+  sqlite3_blob_read $B 0 10
+} {1234567890}
+do_test 11.3.2 {
+  # Updating a different row
+  execsql { UPDATE b1 SET c = 42 WHERE a=4 }
+  sqlite3_blob_read $B 0 10
+} {1234567890}
+do_test 11.3.3 {
+  execsql { UPDATE b1 SET c = 43 WHERE a=3 }
+  list [catch { sqlite3_blob_read $B 0 10 } msg] $msg
+} {1 SQLITE_ABORT}
+do_test 11.3.4 {
+  sqlite3_blob_close $B
+} {}
+
+do_test 11.4.1 {
+  sqlite3_blob_open db main b1 b 6 0 B
+  sqlite3_blob_read $B 0 10
+} {1234567890}
+do_test 11.4.2 {
+  # Replace a different row
+  execsql { INSERT OR REPLACE INTO b1 VALUES(10, 'abcdefghij', 5) }
+  sqlite3_blob_read $B 0 10
+} {1234567890}
+do_test 11.4.3 {
+  execsql { INSERT OR REPLACE INTO b1 VALUES(11, 'abcdefghij', 6) }
+  list [catch { sqlite3_blob_read $B 0 10 } msg] $msg
+} {1 SQLITE_ABORT}
+do_test 11.4.4 {
+  sqlite3_blob_close $B
+} {}
+
+do_test 11.4.1 {
+  sqlite3_blob_open db main b2 b 2 1 B
+  sqlite3_blob_write $B 0 "abcdefghij"
+} {}
+do_test 11.4.2 {
+  # Deleting a different row does not invalidate the blob handle.
+  execsql { DELETE FROM b2 WHERE a = 1 }
+  sqlite3_blob_write $B 0 "ABCDEFGHIJ"
+} {}
+do_test 11.4.3 {
+  execsql { DELETE FROM b2 WHERE a = 2 }
+  list [catch { sqlite3_blob_write $B 0 "0987654321" } msg] $msg
+} {1 SQLITE_ABORT}
+do_test 11.4.4 {
+  sqlite3_blob_close $B
+} {}
+
+do_test 11.5.1 {
+  sqlite3_blob_open db main b2 b 3 1 B
+  sqlite3_blob_write $B 0 "abcdefghij"
+} {}
+do_test 11.5.2 {
+  # Updating a different row
+  execsql { UPDATE b2 SET c = 42 WHERE a=4 }
+  sqlite3_blob_write $B 0 "ABCDEFGHIJ"
+} {}
+do_test 11.5.3 {
+  execsql { UPDATE b2 SET c = 43 WHERE a=3 }
+  list [catch { sqlite3_blob_write $B 0 "0987654321" } msg] $msg
+} {1 SQLITE_ABORT}
+do_test 11.5.4 {
+  sqlite3_blob_close $B
+} {}
+
+do_test 11.6.1 {
+  sqlite3_blob_open db main b2 b 6 1 B
+  sqlite3_blob_write $B 0 "abcdefghij"
+} {}
+do_test 11.6.2 {
+  # Replace a different row
+  execsql { INSERT OR REPLACE INTO b2 VALUES(10, 'abcdefghij', 5) }
+  sqlite3_blob_write $B 0 "ABCDEFGHIJ"
+} {}
+do_test 11.6.3 {
+  execsql { INSERT OR REPLACE INTO b2 VALUES(11, 'abcdefghij', 6) }
+  list [catch { sqlite3_blob_write $B 0 "0987654321" } msg] $msg
+} {1 SQLITE_ABORT}
+do_test 11.6.4 {
+  sqlite3_blob_close $B
+} {}
+
+#-------------------------------------------------------------------------
+# EVIDENCE-OF: R-45408-40694 Changes written into a BLOB prior to the
+# BLOB expiring are not rolled back by the expiration of the BLOB. Such
+# changes will eventually commit if the transaction continues to
+# completion.
+#
+do_execsql_test 12.1 {
+  CREATE TABLE b3(x INTEGER PRIMARY KEY, y TEXT, z INTEGER);
+  INSERT INTO b3 VALUES(22, '..........', NULL);
+}
+do_test 12.2 {
+  sqlite3_blob_open db main b3 y 22 1 B
+  sqlite3_blob_write $B 0 "xxxxx" 5
+} {}
+do_execsql_test 12.3 {
+  UPDATE b3 SET z = 'not null';
+}
+do_test 12.4 {
+  list [catch {sqlite3_blob_write $B 5 "xxxxx" 5} msg] $msg
+} {1 SQLITE_ABORT}
+do_execsql_test 12.5 {
+  SELECT * FROM b3;
+} {22 xxxxx..... {not null}}
+do_test 12.5 {
+  sqlite3_blob_close $B
+} {}
+do_execsql_test 12.6 {
+  SELECT * FROM b3;
+} {22 xxxxx..... {not null}}
+
+#-------------------------------------------------------------------------
+# EVIDENCE-OF: R-58813-55036 The sqlite3_bind_zeroblob() and
+# sqlite3_result_zeroblob() interfaces and the built-in zeroblob SQL
+# function may be used to create a zero-filled blob to read or write
+# using the incremental-blob interface.
+#
+do_execsql_test 13.1 {
+  CREATE TABLE c2(i INTEGER PRIMARY KEY, j);
+  INSERT INTO c2 VALUES(10, zeroblob(24));
+}
+
+do_test 13.2 {
+  set stmt [sqlite3_prepare_v2 db "INSERT INTO c2 VALUES(11, ?)" -1]
+  sqlite3_bind_zeroblob $stmt 1 45
+  sqlite3_step $stmt
+  sqlite3_finalize $stmt
+} {SQLITE_OK}
+
+# The blobs can be read:
+#
+do_test 13.3.1 {
+  sqlite3_blob_open db main c2 j 10 1 B
+  sqlite3_blob_open db main c2 j 11 1 B2
+  list [sqlite3_blob_bytes $B] [sqlite3_blob_bytes $B2]
+} {24 45}
+do_test 13.3.2 {
+  sqlite3_blob_read $B 0 24
+} [string repeat [binary format c 0] 24]
+do_test 13.3.3 {
+  sqlite3_blob_read $B2 0 45
+} [string repeat [binary format c 0] 45]
+
+# And also written:
+#
+do_test 13.4.1 {
+  sqlite3_blob_write $B 0 [string repeat [binary format c 1] 24]
+} {}
+do_test 13.4.2 {
+  sqlite3_blob_write $B2 0 [string repeat [binary format c 1] 45]
+} {}
+do_test 13.5 {
+  sqlite3_blob_close $B
+  sqlite3_blob_close $B2
+  execsql { SELECT j FROM c2 }
+} [list \
+    [string repeat [binary format c 1] 24] \
+    [string repeat [binary format c 1] 45] \
+]
+
+
+finish_test
diff --git a/test/e_blobwrite.test b/test/e_blobwrite.test
new file mode 100644
index 0000000000000000000000000000000000000000..8d8588e6aa88b9393d0cacac20b27492c9d78c2e
--- /dev/null
+++ b/test/e_blobwrite.test
@@ -0,0 +1,208 @@
+# 2014 October 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix e_blobwrite
+
+ifcapable !incrblob {
+  finish_test
+  return
+}
+
+#--------------------------------------------------------------------------
+# EVIDENCE-OF: R-62898-22698 This function is used to write data into an
+# open BLOB handle from a caller-supplied buffer. N bytes of data are
+# copied from the buffer Z into the open BLOB, starting at offset
+# iOffset.
+#
+set dots [string repeat . 40]
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, t TEXT);
+  INSERT INTO t1 VALUES(-1, $dots);
+  INSERT INTO t1 VALUES(-2, $dots);
+  INSERT INTO t1 VALUES(-3, $dots);
+  INSERT INTO t1 VALUES(-4, $dots);
+  INSERT INTO t1 VALUES(-5, $dots);
+  INSERT INTO t1 VALUES(-6, $dots);
+}
+
+proc blob_write_test {tn id iOffset blob nData final} {
+  sqlite3_blob_open db main t1 t $id 1 B
+
+  # EVIDENCE-OF: R-45864-01884 On success, sqlite3_blob_write() returns
+  # SQLITE_OK. Otherwise, an error code or an extended error code is
+  # returned.
+  #
+  #   This block tests the SQLITE_OK case in the requirement above (the
+  #   Tcl sqlite3_blob_write() wrapper uses an empty string in place of
+  #   "SQLITE_OK"). The error cases are tested by the "blob_write_error_test"
+  #   tests below.
+  #
+  set res [sqlite3_blob_write $B $iOffset $blob $nData]
+  uplevel [list do_test $tn.1 [list set {} $res] {}]
+
+  sqlite3_blob_close $B
+  uplevel [list do_execsql_test $tn.3 "SELECT t FROM t1 WHERE a=$id" $final]
+}
+
+set blob "0123456789012345678901234567890123456789"
+blob_write_test 1.1 -1 0 $blob 10  { 0123456789.............................. }
+blob_write_test 1.2 -2 8 $blob 10  { ........0123456789...................... }
+blob_write_test 1.3 -3 8 $blob 1   { ........0............................... }
+blob_write_test 1.4 -4 18 $blob 22 { ..................0123456789012345678901 }
+blob_write_test 1.5 -5 18 $blob 0  { ........................................ }
+blob_write_test 1.6 -6 0 $blob 40  { 0123456789012345678901234567890123456789 }
+
+
+proc blob_write_error_test {tn B iOffset blob nData errcode errmsg} {
+
+  # In cases where the underlying sqlite3_blob_write() function returns
+  # SQLITE_OK, the Tcl wrapper returns an empty string. If the underlying
+  # function returns an error, the Tcl wrapper throws an exception with
+  # the error code as the Tcl exception message.
+  #
+  if {$errcode=="SQLITE_OK"} {
+    set ret ""
+    set isError 0
+  } else {
+    set ret $errcode
+    set isError 1
+  }
+
+  set cmd [list sqlite3_blob_write $B $iOffset $blob $nData]
+  uplevel [list do_test $tn.1 [subst -nocommands {
+    list [catch {$cmd} msg] [set msg]              
+  }] [list $isError $ret]]
+
+  # EVIDENCE-OF: R-34782-18311 Unless SQLITE_MISUSE is returned, this
+  # function sets the database connection error code and message
+  # accessible via sqlite3_errcode() and sqlite3_errmsg() and related
+  # functions.
+  #
+  if {$errcode == "SQLITE_MISUSE"} { error "test proc misuse!" }
+  uplevel [list do_test $tn.2 [list sqlite3_errcode db] $errcode]
+  uplevel [list do_test $tn.3 [list sqlite3_errmsg db] $errmsg]
+}
+
+do_execsql_test 2.0 {
+  CREATE TABLE t2(a TEXT, b INTEGER PRIMARY KEY);
+  INSERT INTO t2 VALUES($dots, 43);
+  INSERT INTO t2 VALUES($dots, 44);
+  INSERT INTO t2 VALUES($dots, 45);
+}
+
+# EVIDENCE-OF: R-63341-57517 If the BLOB handle passed as the first
+# argument was not opened for writing (the flags parameter to
+# sqlite3_blob_open() was zero), this function returns SQLITE_READONLY.
+#
+sqlite3_blob_open db main t2 a 43 0 B
+blob_write_error_test 2.1 $B 0 $blob 10   \
+    SQLITE_READONLY {attempt to write a readonly database}
+sqlite3_blob_close $B
+
+# EVIDENCE-OF: R-29804-27366 If offset iOffset is less than N bytes from
+# the end of the BLOB, SQLITE_ERROR is returned and no data is written.
+#
+sqlite3_blob_open db main t2 a 44 3 B
+blob_write_error_test 2.2.1 $B 31 $blob 10   \
+    SQLITE_ERROR {SQL logic error}
+
+# Make a successful write to the blob handle. This shows that the
+# sqlite3_errcode() and sqlite3_errmsg() values are set even if the
+# blob_write() call succeeds (see requirement in the [blob_write_error_test]
+# proc).
+blob_write_error_test 2.2.1 $B 30 $blob 10 SQLITE_OK {not an error}
+
+# EVIDENCE-OF: R-58570-38916 If N or iOffset are less than zero
+# SQLITE_ERROR is returned and no data is written.
+#
+blob_write_error_test 2.2.2 $B 31 $blob -1   \
+    SQLITE_ERROR {SQL logic error}
+blob_write_error_test 2.2.3 $B 20 $blob 10 SQLITE_OK {not an error}
+blob_write_error_test 2.2.4 $B -1 $blob 10   \
+    SQLITE_ERROR {SQL logic error}
+sqlite3_blob_close $B
+
+# EVIDENCE-OF: R-20958-54138 An attempt to write to an expired BLOB
+# handle fails with an error code of SQLITE_ABORT.
+#
+do_test 2.3 {
+  sqlite3_blob_open db main t2 a 43 0 B
+  execsql { DELETE FROM t2 WHERE b=43 }
+} {}
+blob_write_error_test 2.3.1 $B 5 $blob 5 \
+    SQLITE_ABORT {query aborted}
+do_test 2.3.2 {
+  execsql { SELECT 1, 2, 3 }
+  sqlite3_errcode db
+} {SQLITE_OK}
+blob_write_error_test 2.3.3 $B 5 $blob 5 \
+    SQLITE_ABORT {query aborted}
+sqlite3_blob_close $B
+
+# EVIDENCE-OF: R-08382-59936 Writes to the BLOB that occurred before the
+# BLOB handle expired are not rolled back by the expiration of the
+# handle, though of course those changes might have been overwritten by
+# the statement that expired the BLOB handle or by other independent
+# statements.
+#
+#   3.1.*: not rolled back, 
+#   3.2.*: overwritten.
+#
+do_execsql_test 3.0 {
+  CREATE TABLE t3(i INTEGER PRIMARY KEY, j TEXT, k TEXT);
+  INSERT INTO t3 VALUES(1, $dots, $dots);
+  INSERT INTO t3 VALUES(2, $dots, $dots);
+  SELECT * FROM t3 WHERE i=1;
+} {
+  1
+  ........................................
+  ........................................
+}
+sqlite3_blob_open db main t3 j 1 1 B
+blob_write_error_test 3.1.1 $B 5 $blob 10 SQLITE_OK {not an error}
+do_execsql_test 3.1.2 {
+  UPDATE t3 SET k = 'xyz' WHERE i=1;
+  SELECT * FROM t3 WHERE i=1;
+} {
+  1 .....0123456789......................... xyz
+}
+blob_write_error_test 3.1.3 $B 15 $blob 10 \
+    SQLITE_ABORT {query aborted}
+sqlite3_blob_close $B
+do_execsql_test 3.1.4 {
+  SELECT * FROM t3 WHERE i=1;
+} {
+  1 .....0123456789......................... xyz
+}
+
+sqlite3_blob_open db main t3 j 2 1 B
+blob_write_error_test 3.2.1 $B 5 $blob 10 SQLITE_OK {not an error}
+do_execsql_test 3.2.2 {
+  UPDATE t3 SET j = 'xyz' WHERE i=2;
+  SELECT * FROM t3 WHERE i=2;
+} {
+  2 xyz ........................................
+}
+blob_write_error_test 3.2.3 $B 15 $blob 10 \
+    SQLITE_ABORT {query aborted}
+sqlite3_blob_close $B
+do_execsql_test 3.2.4 {
+  SELECT * FROM t3 WHERE i=2;
+} {
+  2 xyz ........................................
+}
+
+
+
+finish_test
diff --git a/test/e_changes.test b/test/e_changes.test
new file mode 100644
index 0000000000000000000000000000000000000000..2eb77d3130eb36d78757560e7b003e70051e7688
--- /dev/null
+++ b/test/e_changes.test
@@ -0,0 +1,443 @@
+# 2011 October 28
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix e_changes
+
+# Like [do_execsql_test], except it appends the value returned by 
+# [db changes] to the result of executing the SQL script.
+#
+proc do_changes_test {tn sql res} {
+  uplevel [list \
+    do_test $tn "concat \[execsql {$sql}\] \[db changes\]" $res
+  ]
+}
+
+
+#--------------------------------------------------------------------------
+# EVIDENCE-OF: R-58361-29089 The changes() function returns the number
+# of database rows that were changed or inserted or deleted by the most
+# recently completed INSERT, DELETE, or UPDATE statement, exclusive of
+# statements in lower-level triggers.
+#
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b);
+  CREATE TABLE t2(x, y, PRIMARY KEY(x, y)) WITHOUT ROWID;
+  CREATE INDEX i1 ON t1(a);
+  CREATE INDEX i2 ON t2(y);
+}
+foreach {tn schema} {
+  1 { 
+      CREATE TABLE t1(a, b);
+      CREATE INDEX i1 ON t1(b);
+  }
+  2 { 
+      CREATE TABLE t1(a, b, PRIMARY KEY(a, b)) WITHOUT ROWID;
+      CREATE INDEX i1 ON t1(b);
+  }
+} {
+  reset_db
+  execsql $schema
+
+  # Insert 1 row.
+  do_changes_test 1.$tn.1 { INSERT INTO t1 VALUES(0, 0) } 1
+
+  # Insert 10 rows.
+  do_changes_test 1.$tn.2 {
+    WITH rows(i, j) AS (
+        SELECT 1, 1 UNION ALL SELECT i+1, j+i FROM rows WHERE i<10
+    )
+    INSERT INTO t1 SELECT * FROM rows
+  } 10
+
+  # Modify 5 rows.
+  do_changes_test 1.$tn.3 {
+    UPDATE t1 SET b=b+1 WHERE a<5;
+  } 5
+
+  # Delete 4 rows
+  do_changes_test 1.$tn.4 {
+    DELETE FROM t1 WHERE a>6
+  } 4
+
+  # Check the "on the database connecton specified" part of hte
+  # requirement - changes made by other connections do not show up in
+  # the return value of sqlite3_changes().
+  do_test 1.$tn.5 {
+    sqlite3 db2 test.db
+    execsql { INSERT INTO t1 VALUES(-1, -1) } db2
+    db2 changes
+  } 1
+  do_test 1.$tn.6 {
+    db changes
+  } 4
+  db2 close
+
+  # Test that statements that modify no rows because they hit UNIQUE
+  # constraints set the sqlite3_changes() value to 0. Regardless of
+  # whether or not they are executed inside an explicit transaction.
+  #
+  #   1.$tn.8-9: outside of a transaction
+  #   1.$tn.10-12: inside a transaction
+  #
+  do_changes_test 1.$tn.7 {
+    CREATE UNIQUE INDEX i2 ON t1(a);
+  } 4
+  do_catchsql_test 1.$tn.8 {
+    INSERT INTO t1 VALUES('a', 0), ('b', 0), ('c', 0), (0, 11);
+  } {1 {UNIQUE constraint failed: t1.a}}
+  do_test 1.$tn.9 { db changes } 0
+  do_catchsql_test 1.$tn.10 {
+    BEGIN;
+      INSERT INTO t1 VALUES('a', 0), ('b', 0), ('c', 0), (0, 11);
+  } {1 {UNIQUE constraint failed: t1.a}}
+  do_test 1.$tn.11 { db changes } 0
+  do_changes_test 1.$tn.12 COMMIT 0
+
+}
+
+
+#--------------------------------------------------------------------------
+# X-EVIDENCE-OF: R-44877-05564 Executing any other type of SQL statement
+# does not modify the value returned by this function.
+#
+reset_db
+do_changes_test 2.1 { CREATE TABLE t1(x)          } 0
+do_changes_test 2.2 { 
+  WITH d(y) AS (SELECT 1 UNION ALL SELECT y+1 FROM d WHERE y<47)
+  INSERT INTO t1 SELECT y FROM d;
+} 47
+
+# The statement above set changes() to 47. Check that none of the following
+# modify this.
+do_changes_test 2.3 { SELECT count(x) FROM t1 } {47 47}
+do_changes_test 2.4 { DROP TABLE t1               } 47
+do_changes_test 2.5 { CREATE TABLE t1(x)          } 47
+ifcapable altertable {
+  do_changes_test 2.6 { ALTER TABLE t1 ADD COLUMN b } 47
+}
+
+
+#--------------------------------------------------------------------------
+# EVIDENCE-OF: R-53938-27527 Only changes made directly by the INSERT,
+# UPDATE or DELETE statement are considered - auxiliary changes caused
+# by triggers, foreign key actions or REPLACE constraint resolution are
+# not counted.
+#
+#   3.1.*: triggers
+#   3.2.*: foreign key actions
+#   3.3.*: replace constraints
+#
+reset_db
+do_execsql_test 3.1.0 {
+  CREATE TABLE log(x);
+  CREATE TABLE p1(one PRIMARY KEY, two);
+
+  CREATE TRIGGER tr_ai AFTER INSERT ON p1 BEGIN
+    INSERT INTO log VALUES('insert');
+  END;
+  CREATE TRIGGER tr_bd BEFORE DELETE ON p1 BEGIN
+    INSERT INTO log VALUES('delete');
+  END;
+  CREATE TRIGGER tr_au AFTER UPDATE ON p1 BEGIN
+    INSERT INTO log VALUES('update');
+  END;
+
+}
+
+do_changes_test 3.1.1 {
+  INSERT INTO p1 VALUES('a', 'A'), ('b', 'B'), ('c', 'C');
+} 3
+do_changes_test 3.1.2 {
+  UPDATE p1 SET two = two||two;
+} 3
+do_changes_test 3.1.3 {
+  DELETE FROM p1 WHERE one IN ('a', 'c');
+} 2
+do_execsql_test 3.1.4 {
+  -- None of the inserts on table log were counted.
+  SELECT count(*) FROM log
+} 8
+
+do_execsql_test 3.2.0 {
+  DELETE FROM p1;
+  INSERT INTO p1 VALUES('a', 'A'), ('b', 'B'), ('c', 'C');
+
+  CREATE TABLE c1(a, b, FOREIGN KEY(a) REFERENCES p1 ON DELETE SET NULL);
+  CREATE TABLE c2(a, b, FOREIGN KEY(a) REFERENCES p1 ON DELETE SET DEFAULT);
+  CREATE TABLE c3(a, b, FOREIGN KEY(a) REFERENCES p1 ON DELETE CASCADE);
+  INSERT INTO c1 VALUES('a', 'aaa');
+  INSERT INTO c2 VALUES('b', 'bbb');
+  INSERT INTO c3 VALUES('c', 'ccc');
+
+  INSERT INTO p1 VALUES('d', 'D'), ('e', 'E'), ('f', 'F');
+  CREATE TABLE c4(a, b, FOREIGN KEY(a) REFERENCES p1 ON UPDATE SET NULL);
+  CREATE TABLE c5(a, b, FOREIGN KEY(a) REFERENCES p1 ON UPDATE SET DEFAULT);
+  CREATE TABLE c6(a, b, FOREIGN KEY(a) REFERENCES p1 ON UPDATE CASCADE);
+  INSERT INTO c4 VALUES('d', 'aaa');
+  INSERT INTO c5 VALUES('e', 'bbb');
+  INSERT INTO c6 VALUES('f', 'ccc');
+
+  PRAGMA foreign_keys = ON;
+}
+
+do_changes_test 3.2.1 { DELETE FROM p1 WHERE one = 'a' } 1
+do_changes_test 3.2.2 { DELETE FROM p1 WHERE one = 'b' } 1
+do_changes_test 3.2.3 { DELETE FROM p1 WHERE one = 'c' } 1
+do_execsql_test 3.2.4 { 
+  SELECT * FROM c1;
+  SELECT * FROM c2;
+  SELECT * FROM c3;
+} {{} aaa {} bbb}
+
+do_changes_test 3.2.5 { UPDATE p1 SET one = 'g' WHERE one = 'd' } 1
+do_changes_test 3.2.6 { UPDATE p1 SET one = 'h' WHERE one = 'e' } 1
+do_changes_test 3.2.7 { UPDATE p1 SET one = 'i' WHERE one = 'f' } 1
+do_execsql_test 3.2.8 { 
+  SELECT * FROM c4;
+  SELECT * FROM c5;
+  SELECT * FROM c6;
+} {{} aaa {} bbb i ccc}
+
+do_execsql_test 3.3.0 {
+  CREATE TABLE r1(a UNIQUE, b UNIQUE);
+  INSERT INTO r1 VALUES('i', 'i');
+  INSERT INTO r1 VALUES('ii', 'ii');
+  INSERT INTO r1 VALUES('iii', 'iii');
+  INSERT INTO r1 VALUES('iv', 'iv');
+  INSERT INTO r1 VALUES('v', 'v');
+  INSERT INTO r1 VALUES('vi', 'vi');
+  INSERT INTO r1 VALUES('vii', 'vii');
+}
+
+do_changes_test 3.3.1 { INSERT OR REPLACE INTO r1 VALUES('i', 1)    }   1
+do_changes_test 3.3.2 { INSERT OR REPLACE INTO r1 VALUES('iv', 'v') }   1
+do_changes_test 3.3.3 { UPDATE OR REPLACE r1 SET b='v' WHERE a='iii' }  1
+do_changes_test 3.3.4 { UPDATE OR REPLACE r1 SET b='vi',a='vii' WHERE a='ii' } 1
+do_execsql_test 3.3.5 { 
+  SELECT * FROM r1 ORDER BY a;
+} {i 1   iii v   vii vi}
+
+
+#--------------------------------------------------------------------------
+# EVIDENCE-OF: R-09813-48563 The value returned by sqlite3_changes()
+# immediately after an INSERT, UPDATE or DELETE statement run on a view
+# is always zero.
+#
+reset_db
+do_execsql_test 4.1 {
+  CREATE TABLE log(log);
+  CREATE TABLE t1(x, y);
+  INSERT INTO t1 VALUES(1, 2);
+  INSERT INTO t1 VALUES(3, 4);
+  INSERT INTO t1 VALUES(5, 6);
+
+  CREATE VIEW v1 AS SELECT * FROM t1;
+  CREATE TRIGGER v1_i INSTEAD OF INSERT ON v1 BEGIN
+    INSERT INTO log VALUES('insert');
+  END;
+  CREATE TRIGGER v1_u INSTEAD OF UPDATE ON v1 BEGIN
+    INSERT INTO log VALUES('update'), ('update');
+  END;
+  CREATE TRIGGER v1_d INSTEAD OF DELETE ON v1 BEGIN
+    INSERT INTO log VALUES('delete'), ('delete'), ('delete');
+  END;
+}
+
+do_changes_test 4.2.1 { INSERT INTO t1 SELECT * FROM t1 }  3
+do_changes_test 4.2.2 { INSERT INTO v1 VALUES(1, 2) }      0
+
+do_changes_test 4.3.1 { INSERT INTO t1 SELECT * FROM t1 }  6
+do_changes_test 4.3.2 { UPDATE v1 SET y='xyz' WHERE x=1 }  0
+
+do_changes_test 4.4.1 { INSERT INTO t1 SELECT * FROM t1 } 12
+do_changes_test 4.4.2 { DELETE FROM v1 WHERE x=5 }         0
+
+
+#--------------------------------------------------------------------------
+# EVIDENCE-OF: R-32918-61474 Before entering a trigger program the value
+# returned by sqlite3_changes() function is saved. After the trigger
+# program has finished, the original value is restored.
+#
+reset_db
+db func my_changes my_changes
+set ::changes [list]
+proc my_changes {x} {
+  set res [db changes]
+  lappend ::changes $x $res
+  return $res
+}
+
+do_execsql_test 5.1.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+  CREATE TABLE t2(x);
+  INSERT INTO t1 VALUES(1, NULL);
+  INSERT INTO t1 VALUES(2, NULL);
+  INSERT INTO t1 VALUES(3, NULL);
+  CREATE TRIGGER AFTER UPDATE ON t1 BEGIN
+    INSERT INTO t2 VALUES('a'), ('b'), ('c');
+    SELECT my_changes('trigger');
+  END;
+}
+
+do_execsql_test 5.1.1 {
+  INSERT INTO t2 VALUES('a'), ('b');
+  UPDATE t1 SET b = my_changes('update');
+  SELECT * FROM t1;
+} {1 2 2 2 3 2}
+
+# Value is being restored to "2" when the trigger program exits.
+do_test 5.1.2 {
+  set ::changes
+} {update 2 trigger 3 update 2 trigger 3 update 2 trigger 3}
+
+
+reset_db
+do_execsql_test 5.2.0 {
+  CREATE TABLE t1(a, b);
+  CREATE TABLE log(x);
+  INSERT INTO t1 VALUES(1, 0);
+  INSERT INTO t1 VALUES(2, 0);
+  INSERT INTO t1 VALUES(3, 0);
+  CREATE TRIGGER t1_a_u AFTER UPDATE ON t1 BEGIN
+    INSERT INTO log VALUES(old.b || ' -> ' || new.b || ' c = ' || changes() );
+  END;
+  CREATE TABLE t2(a);
+  INSERT INTO t2 VALUES(1), (2), (3);
+  UPDATE t1 SET b = changes();
+}
+do_execsql_test 5.2.1 {
+  SELECT * FROM t1;
+} {1 3 2 3 3 3}
+do_execsql_test 5.2.2 {
+  SELECT * FROM log;
+} {{0 -> 3 c = 3} {0 -> 3 c = 3} {0 -> 3 c = 3}}
+
+
+#--------------------------------------------------------------------------
+# EVIDENCE-OF: R-17146-37073 Within a trigger program each INSERT,
+# UPDATE and DELETE statement sets the value returned by
+# sqlite3_changes() upon completion as normal. Of course, this value
+# will not include any changes performed by sub-triggers, as the
+# sqlite3_changes() value will be saved and restored after each
+# sub-trigger has run.
+reset_db
+do_execsql_test 6.0 {
+
+  CREATE TABLE t1(a, b);
+  CREATE TABLE t2(a, b);
+  CREATE TABLE t3(a, b);
+  CREATE TABLE log(x);
+
+  CREATE TRIGGER t1_i BEFORE INSERT ON t1 BEGIN
+    INSERT INTO t2 VALUES(new.a, new.b), (new.a, new.b);
+    INSERT INTO log VALUES('t2->' || changes());
+  END;
+
+  CREATE TRIGGER t2_i AFTER INSERT ON t2 BEGIN
+    INSERT INTO t3 VALUES(new.a, new.b), (new.a, new.b), (new.a, new.b);
+    INSERT INTO log VALUES('t3->' || changes());
+  END;
+
+  CREATE TRIGGER t1_u AFTER UPDATE ON t1 BEGIN
+    UPDATE t2 SET b=new.b WHERE a=old.a;
+    INSERT INTO log VALUES('t2->' || changes());
+  END;
+
+  CREATE TRIGGER t2_u BEFORE UPDATE ON t2 BEGIN
+    UPDATE t3 SET b=new.b WHERE a=old.a;
+    INSERT INTO log VALUES('t3->' || changes());
+  END;
+
+  CREATE TRIGGER t1_d AFTER DELETE ON t1 BEGIN
+    DELETE FROM t2 WHERE a=old.a AND b=old.b;
+    INSERT INTO log VALUES('t2->' || changes());
+  END;
+
+  CREATE TRIGGER t2_d BEFORE DELETE ON t2 BEGIN
+    DELETE FROM t3 WHERE a=old.a AND b=old.b;
+    INSERT INTO log VALUES('t3->' || changes());
+  END;
+}
+
+do_changes_test 6.1 {
+  INSERT INTO t1 VALUES('+', 'o');
+  SELECT * FROM log;
+} {t3->3 t3->3 t2->2 1}
+
+do_changes_test 6.2 {
+  DELETE FROM log;
+  UPDATE t1 SET b='*';
+  SELECT * FROM log;
+} {t3->6 t3->6 t2->2 1}
+
+do_changes_test 6.3 {
+  DELETE FROM log;
+  DELETE FROM t1;
+  SELECT * FROM log;
+} {t3->6 t3->0 t2->2 1}
+
+
+#--------------------------------------------------------------------------
+# EVIDENCE-OF: R-43399-09409 This means that if the changes() SQL
+# function (or similar) is used by the first INSERT, UPDATE or DELETE
+# statement within a trigger, it returns the value as set when the
+# calling statement began executing.
+#
+# EVIDENCE-OF: R-53215-27584 If it is used by the second or subsequent
+# such statement within a trigger program, the value returned reflects
+# the number of rows modified by the previous INSERT, UPDATE or DELETE
+# statement within the same trigger.
+#
+reset_db
+do_execsql_test 7.1 {
+  CREATE TABLE q1(t);
+  CREATE TABLE q2(u, v);
+  CREATE TABLE q3(w);
+
+  CREATE TRIGGER q2_insert BEFORE INSERT ON q2 BEGIN
+
+    /* changes() returns value from previous I/U/D in callers context */
+    INSERT INTO q1 VALUES('1:' || changes());
+
+    /* changes() returns value of previous I/U/D in this context */
+    INSERT INTO q3 VALUES(changes()), (2), (3);
+    INSERT INTO q1 VALUES('2:' || changes());
+    INSERT INTO q3 VALUES(changes() + 3), (changes()+4);
+    SELECT 'this does not affect things!';
+    INSERT INTO q1 VALUES('3:' || changes());
+    UPDATE q3 SET w = w+10 WHERE w%2;
+    INSERT INTO q1 VALUES('4:' || changes());
+    DELETE FROM q3;
+    INSERT INTO q1 VALUES('5:' || changes());
+  END;
+}
+
+do_execsql_test 7.2 {
+  INSERT INTO q2 VALUES('x', 'y');
+  SELECT * FROM q1;
+} {
+  1:0   2:3   3:2   4:3   5:5
+}
+
+do_execsql_test 7.3 {
+  DELETE FROM q1;
+  INSERT INTO q2 VALUES('x', 'y');
+  SELECT * FROM q1;
+} {
+  1:5   2:3   3:2   4:3   5:5
+}
+
+
+
+finish_test
diff --git a/test/e_createtable.test b/test/e_createtable.test
new file mode 100644
index 0000000000000000000000000000000000000000..92ccc803237e1de42d29582f5a625dd07ddade21
--- /dev/null
+++ b/test/e_createtable.test
@@ -0,0 +1,1970 @@
+# 2010 September 25
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements tests to verify that the "testable statements" in 
+# the lang_createtable.html document are correct.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+set ::testprefix e_createtable
+
+# Test organization:
+#
+#   e_createtable-0.*: Test that the syntax diagrams are correct.
+#
+#   e_createtable-1.*: Test statements related to table and database names, 
+#       the TEMP and TEMPORARY keywords, and the IF NOT EXISTS clause.
+#
+#   e_createtable-2.*: Test "CREATE TABLE AS" statements.
+#
+
+proc do_createtable_tests {nm args} {
+  uplevel do_select_tests [list e_createtable-$nm] $args
+}
+
+
+#-------------------------------------------------------------------------
+# This command returns a serialized tcl array mapping from the name of
+# each attached database to a list of tables in that database. For example,
+# if the database schema is created with:
+#
+#   CREATE TABLE t1(x);
+#   CREATE TEMP TABLE t2(x);
+#   CREATE TEMP TABLE t3(x);
+#
+# Then this command returns "main t1 temp {t2 t3}".
+#
+proc table_list {} {
+  set res [list]
+  db eval { pragma database_list } a {
+    set dbname $a(name)
+    set master $a(name).sqlite_master
+    if {$dbname == "temp"} { set master sqlite_temp_master }
+    lappend res $dbname [
+      db eval "SELECT DISTINCT tbl_name FROM $master ORDER BY tbl_name"
+    ]
+  }
+  set res
+}
+
+
+do_createtable_tests 0.1.1 -repair {
+  drop_all_tables
+} {
+  1   "CREATE TABLE t1(c1 one)"                        {}
+  2   "CREATE TABLE t1(c1 one two)"                    {}
+  3   "CREATE TABLE t1(c1 one two three)"              {}
+  4   "CREATE TABLE t1(c1 one two three four)"         {}
+  5   "CREATE TABLE t1(c1 one two three four(14))"     {}
+  6   "CREATE TABLE t1(c1 one two three four(14, 22))" {}
+  7   "CREATE TABLE t1(c1 var(+14, -22.3))"            {}
+  8   "CREATE TABLE t1(c1 var(1.0e10))"                {}
+}
+do_createtable_tests 0.1.2 -error {
+  near "%s": syntax error
+} {
+  1   "CREATE TABLE t1(c1 one(number))"                {number}
+}
+
+
+# syntax diagram column-constraint
+#
+do_createtable_tests 0.2.1 -repair {
+  drop_all_tables 
+  execsql { CREATE TABLE t2(x PRIMARY KEY) }
+} {
+  1.1   "CREATE TABLE t1(c1 text PRIMARY KEY)"                         {}
+  1.2   "CREATE TABLE t1(c1 text PRIMARY KEY ASC)"                     {}
+  1.3   "CREATE TABLE t1(c1 text PRIMARY KEY DESC)"                    {}
+  1.4   "CREATE TABLE t1(c1 text CONSTRAINT cons PRIMARY KEY DESC)"    {}
+
+  2.1   "CREATE TABLE t1(c1 text NOT NULL)"                            {}
+  2.2   "CREATE TABLE t1(c1 text CONSTRAINT nm NOT NULL)"              {}
+  2.3   "CREATE TABLE t1(c1 text NULL)"                                {}
+  2.4   "CREATE TABLE t1(c1 text CONSTRAINT nm NULL)"                  {}
+
+  3.1   "CREATE TABLE t1(c1 text UNIQUE)"                              {}
+  3.2   "CREATE TABLE t1(c1 text CONSTRAINT un UNIQUE)"                {}
+
+  4.1   "CREATE TABLE t1(c1 text CHECK(c1!=0))"                        {}
+  4.2   "CREATE TABLE t1(c1 text CONSTRAINT chk CHECK(c1!=0))"         {}
+
+  5.1   "CREATE TABLE t1(c1 text DEFAULT 1)"                           {}
+  5.2   "CREATE TABLE t1(c1 text DEFAULT -1)"                          {}
+  5.3   "CREATE TABLE t1(c1 text DEFAULT +1)"                          {}
+  5.4   "CREATE TABLE t1(c1 text DEFAULT -45.8e22)"                    {}
+  5.5   "CREATE TABLE t1(c1 text DEFAULT (1+1))"                       {}
+  5.6   "CREATE TABLE t1(c1 text CONSTRAINT \"1 2\" DEFAULT (1+1))"    {}
+
+  6.1   "CREATE TABLE t1(c1 text COLLATE nocase)"        {}
+  6.2   "CREATE TABLE t1(c1 text CONSTRAINT 'a x' COLLATE nocase)"     {}
+
+  7.1   "CREATE TABLE t1(c1 REFERENCES t2)"                            {}
+  7.2   "CREATE TABLE t1(c1 CONSTRAINT abc REFERENCES t2)"             {}
+
+  8.1   {
+    CREATE TABLE t1(c1 
+      PRIMARY KEY NOT NULL UNIQUE CHECK(c1 IS 'ten') DEFAULT 123 REFERENCES t1
+    );
+  } {}
+  8.2   {
+    CREATE TABLE t1(c1 
+      REFERENCES t1 DEFAULT 123 CHECK(c1 IS 'ten') UNIQUE NOT NULL PRIMARY KEY 
+    );
+  } {}
+}
+
+# -- syntax diagram table-constraint
+#
+do_createtable_tests 0.3.1 -repair {
+  drop_all_tables 
+  execsql { CREATE TABLE t2(x PRIMARY KEY) }
+} {
+  1.1   "CREATE TABLE t1(c1, c2, PRIMARY KEY(c1))"                         {}
+  1.2   "CREATE TABLE t1(c1, c2, PRIMARY KEY(c1, c2))"                     {}
+  1.3   "CREATE TABLE t1(c1, c2, PRIMARY KEY(c1, c2) ON CONFLICT IGNORE)"  {}
+
+  2.1   "CREATE TABLE t1(c1, c2, UNIQUE(c1))"                              {}
+  2.2   "CREATE TABLE t1(c1, c2, UNIQUE(c1, c2))"                          {}
+  2.3   "CREATE TABLE t1(c1, c2, UNIQUE(c1, c2) ON CONFLICT IGNORE)"       {}
+
+  3.1   "CREATE TABLE t1(c1, c2, CHECK(c1 IS NOT c2))"                     {}
+
+  4.1   "CREATE TABLE t1(c1, c2, FOREIGN KEY(c1) REFERENCES t2)"           {}
+}
+
+# -- syntax diagram column-def
+#
+do_createtable_tests 0.4.1 -repair {
+  drop_all_tables 
+} {
+  1     {CREATE TABLE t1(
+           col1,
+           col2 TEXT,
+           col3 INTEGER UNIQUE,
+           col4 VARCHAR(10, 10) PRIMARY KEY,
+           "name with spaces" REFERENCES t1
+         );
+        } {}
+}
+
+# -- syntax diagram create-table-stmt
+#
+do_createtable_tests 0.5.1 -repair {
+  drop_all_tables 
+  execsql { CREATE TABLE t2(a, b, c) }
+} {
+  1     "CREATE TABLE t1(a, b, c)"                                    {}
+  2     "CREATE TEMP TABLE t1(a, b, c)"                               {}
+  3     "CREATE TEMPORARY TABLE t1(a, b, c)"                          {}
+  4     "CREATE TABLE IF NOT EXISTS t1(a, b, c)"                      {}
+  5     "CREATE TEMP TABLE IF NOT EXISTS t1(a, b, c)"                 {}
+  6     "CREATE TEMPORARY TABLE IF NOT EXISTS t1(a, b, c)"            {}
+
+  7     "CREATE TABLE main.t1(a, b, c)"                               {}
+  8     "CREATE TEMP TABLE temp.t1(a, b, c)"                          {}
+  9     "CREATE TEMPORARY TABLE temp.t1(a, b, c)"                     {}
+  10    "CREATE TABLE IF NOT EXISTS main.t1(a, b, c)"                 {}
+  11    "CREATE TEMP TABLE IF NOT EXISTS temp.t1(a, b, c)"            {}
+  12    "CREATE TEMPORARY TABLE IF NOT EXISTS temp.t1(a, b, c)"       {}
+
+  13    "CREATE TABLE t1 AS SELECT * FROM t2"                         {}
+  14    "CREATE TEMP TABLE t1 AS SELECT c, b, a FROM t2"              {}
+  15    "CREATE TABLE t1 AS SELECT count(*), max(b), min(a) FROM t2"  {}
+}
+
+#
+#   1:         Explicit parent-key columns.
+#   2:         Implicit child-key columns.
+#
+#   1:         MATCH FULL
+#   2:         MATCH PARTIAL
+#   3:         MATCH SIMPLE
+#   4:         MATCH STICK
+#   5:         
+#
+#   1:         ON DELETE SET NULL
+#   2:         ON DELETE SET DEFAULT
+#   3:         ON DELETE CASCADE
+#   4:         ON DELETE RESTRICT
+#   5:         ON DELETE NO ACTION
+#   6:
+#
+#   1:         ON UPDATE SET NULL
+#   2:         ON UPDATE SET DEFAULT
+#   3:         ON UPDATE CASCADE
+#   4:         ON UPDATE RESTRICT
+#   5:         ON UPDATE NO ACTION
+#   6:
+#
+#   1:         NOT DEFERRABLE INITIALLY DEFERRED
+#   2:         NOT DEFERRABLE INITIALLY IMMEDIATE
+#   3:         NOT DEFERRABLE
+#   4:         DEFERRABLE INITIALLY DEFERRED
+#   5:         DEFERRABLE INITIALLY IMMEDIATE
+#   6:         DEFERRABLE
+#   7:         
+#
+do_createtable_tests 0.6.1 -repair {
+  drop_all_tables 
+  execsql { CREATE TABLE t2(x PRIMARY KEY, y) }
+  execsql { CREATE TABLE t3(i, j, UNIQUE(i, j) ) }
+} {
+  11146 { CREATE TABLE t1(a 
+    REFERENCES t2(x) MATCH FULL 
+    ON DELETE SET NULL ON UPDATE RESTRICT DEFERRABLE
+  )} {}
+  11412 { CREATE TABLE t1(a 
+    REFERENCES t2(x) 
+    ON DELETE RESTRICT ON UPDATE SET NULL MATCH FULL 
+    NOT DEFERRABLE INITIALLY IMMEDIATE
+  )} {}
+  12135 { CREATE TABLE t1(a 
+    REFERENCES t2(x) MATCH PARTIAL 
+    ON DELETE SET NULL ON UPDATE CASCADE DEFERRABLE INITIALLY IMMEDIATE
+  )} {}
+  12427 { CREATE TABLE t1(a 
+    REFERENCES t2(x) MATCH PARTIAL 
+    ON DELETE RESTRICT ON UPDATE SET DEFAULT 
+  )} {}
+  12446 { CREATE TABLE t1(a 
+    REFERENCES t2(x) MATCH PARTIAL 
+    ON DELETE RESTRICT ON UPDATE RESTRICT DEFERRABLE
+  )} {}
+  12522 { CREATE TABLE t1(a 
+    REFERENCES t2(x) MATCH PARTIAL 
+    ON DELETE NO ACTION ON UPDATE SET DEFAULT NOT DEFERRABLE INITIALLY IMMEDIATE
+  )} {}
+  13133 { CREATE TABLE t1(a 
+    REFERENCES t2(x) MATCH SIMPLE 
+    ON DELETE SET NULL ON UPDATE CASCADE NOT DEFERRABLE
+  )} {}
+  13216 { CREATE TABLE t1(a 
+    REFERENCES t2(x) MATCH SIMPLE 
+    ON DELETE SET DEFAULT ON UPDATE SET NULL DEFERRABLE
+  )} {}
+  13263 { CREATE TABLE t1(a 
+    REFERENCES t2(x) MATCH SIMPLE 
+    ON DELETE SET DEFAULT  NOT DEFERRABLE
+  )} {}
+  13421 { CREATE TABLE t1(a 
+    REFERENCES t2(x) MATCH SIMPLE 
+    ON DELETE RESTRICT ON UPDATE SET DEFAULT NOT DEFERRABLE INITIALLY DEFERRED
+  )} {}
+  13432 { CREATE TABLE t1(a 
+    REFERENCES t2(x) MATCH SIMPLE 
+    ON DELETE RESTRICT ON UPDATE CASCADE NOT DEFERRABLE INITIALLY IMMEDIATE
+  )} {}
+  13523 { CREATE TABLE t1(a 
+    REFERENCES t2(x) MATCH SIMPLE 
+    ON DELETE NO ACTION ON UPDATE SET DEFAULT NOT DEFERRABLE
+  )} {}
+  14336 { CREATE TABLE t1(a 
+    REFERENCES t2(x) MATCH STICK 
+    ON DELETE CASCADE ON UPDATE CASCADE DEFERRABLE
+  )} {}
+  14611 { CREATE TABLE t1(a 
+    REFERENCES t2(x) MATCH STICK 
+    ON UPDATE SET NULL NOT DEFERRABLE INITIALLY DEFERRED
+  )} {}
+  15155 { CREATE TABLE t1(a 
+    REFERENCES t2(x)
+    ON DELETE SET NULL ON UPDATE NO ACTION DEFERRABLE INITIALLY IMMEDIATE
+  )} {}
+  15453 { CREATE TABLE t1(a 
+    REFERENCES t2(x) ON DELETE RESTRICT ON UPDATE NO ACTION NOT DEFERRABLE
+  )} {}
+  15661 { CREATE TABLE t1(a 
+    REFERENCES t2(x) NOT DEFERRABLE INITIALLY DEFERRED
+  )} {}
+  21115 { CREATE TABLE t1(a 
+    REFERENCES t2 MATCH FULL 
+    ON DELETE SET NULL ON UPDATE SET NULL DEFERRABLE INITIALLY IMMEDIATE
+  )} {}
+  21123 { CREATE TABLE t1(a 
+    REFERENCES t2 MATCH FULL 
+    ON DELETE SET NULL ON UPDATE SET DEFAULT NOT DEFERRABLE
+  )} {}
+  21217 { CREATE TABLE t1(a 
+    REFERENCES t2 MATCH FULL ON DELETE SET DEFAULT ON UPDATE SET NULL 
+  )} {}
+  21362 { CREATE TABLE t1(a 
+    REFERENCES t2 MATCH FULL 
+    ON DELETE CASCADE NOT DEFERRABLE INITIALLY IMMEDIATE
+  )} {}
+  22143 { CREATE TABLE t1(a 
+    REFERENCES t2 MATCH PARTIAL 
+    ON DELETE SET NULL ON UPDATE RESTRICT NOT DEFERRABLE
+  )} {}
+  22156 { CREATE TABLE t1(a 
+    REFERENCES t2 MATCH PARTIAL 
+    ON DELETE SET NULL ON UPDATE NO ACTION DEFERRABLE
+  )} {}
+  22327 { CREATE TABLE t1(a 
+    REFERENCES t2 MATCH PARTIAL ON DELETE CASCADE ON UPDATE SET DEFAULT 
+  )} {}
+  22663 { CREATE TABLE t1(a 
+    REFERENCES t2 MATCH PARTIAL NOT DEFERRABLE
+  )} {}
+  23236 { CREATE TABLE t1(a 
+    REFERENCES t2 MATCH SIMPLE 
+    ON DELETE SET DEFAULT ON UPDATE CASCADE DEFERRABLE
+  )} {}
+  24155 { CREATE TABLE t1(a 
+    REFERENCES t2 MATCH STICK 
+    ON DELETE SET NULL ON UPDATE NO ACTION DEFERRABLE INITIALLY IMMEDIATE
+  )} {}
+  24522 { CREATE TABLE t1(a 
+    REFERENCES t2 MATCH STICK 
+    ON DELETE NO ACTION ON UPDATE SET DEFAULT NOT DEFERRABLE INITIALLY IMMEDIATE
+  )} {}
+  24625 { CREATE TABLE t1(a 
+    REFERENCES t2 MATCH STICK 
+    ON UPDATE SET DEFAULT DEFERRABLE INITIALLY IMMEDIATE
+  )} {}
+  25454 { CREATE TABLE t1(a 
+    REFERENCES t2 
+    ON DELETE RESTRICT ON UPDATE NO ACTION DEFERRABLE INITIALLY DEFERRED
+  )} {}
+}
+
+#-------------------------------------------------------------------------
+# Test cases e_createtable-1.* - test statements related to table and
+# database names, the TEMP and TEMPORARY keywords, and the IF NOT EXISTS
+# clause.
+#
+drop_all_tables
+forcedelete test.db2 test.db3
+
+do_execsql_test e_createtable-1.0 {
+  ATTACH 'test.db2' AS auxa;
+  ATTACH 'test.db3' AS auxb;
+} {}
+
+# EVIDENCE-OF: R-17899-04554 Table names that begin with "sqlite_" are
+# reserved for internal use. It is an error to attempt to create a table
+# with a name that starts with "sqlite_".
+#
+do_createtable_tests 1.1.1 -error {
+  object name reserved for internal use: %s
+} {
+  1    "CREATE TABLE sqlite_abc(a, b, c)"        sqlite_abc
+  2    "CREATE TABLE temp.sqlite_helloworld(x)"  sqlite_helloworld
+  3    {CREATE TABLE auxa."sqlite__"(x, y)}      sqlite__
+  4    {CREATE TABLE auxb."sqlite_"(z)}          sqlite_
+  5    {CREATE TABLE "SQLITE_TBL"(z)}            SQLITE_TBL
+}
+do_createtable_tests 1.1.2 {
+  1    "CREATE TABLE sqlit_abc(a, b, c)"         {}
+  2    "CREATE TABLE temp.sqlitehelloworld(x)"   {}
+  3    {CREATE TABLE auxa."sqlite"(x, y)}        {}
+  4    {CREATE TABLE auxb."sqlite-"(z)}          {}
+  5    {CREATE TABLE "SQLITE-TBL"(z)}            {}
+}
+
+
+# EVIDENCE-OF: R-18448-33677 If a schema-name is specified, it must be
+# either "main", "temp", or the name of an attached database.
+#
+# EVIDENCE-OF: R-39822-07822 In this case the new table is created in
+# the named database.
+#
+#   Test cases 1.2.* test the first of the two requirements above. The
+#   second is verified by cases 1.3.*.
+#
+do_createtable_tests 1.2.1 -error {
+  unknown database %s
+} {
+  1    "CREATE TABLE george.t1(a, b)"            george
+  2    "CREATE TABLE _.t1(a, b)"                 _
+}
+do_createtable_tests 1.2.2 {
+  1    "CREATE TABLE main.abc(a, b, c)"          {}
+  2    "CREATE TABLE temp.helloworld(x)"         {}
+  3    {CREATE TABLE auxa."t 1"(x, y)}           {}
+  4    {CREATE TABLE auxb.xyz(z)}                {}
+}
+drop_all_tables
+if {[permutation]!="maindbname"} {
+  do_createtable_tests 1.3 -tclquery {
+    unset -nocomplain X
+    array set X [table_list]
+    list $X(main) $X(temp) $X(auxa) $X(auxb)
+  } {
+    1    "CREATE TABLE main.abc(a, b, c)"  {abc {} {} {}}
+    2    "CREATE TABLE main.t1(a, b, c)"   {{abc t1} {} {} {}}
+    3    "CREATE TABLE temp.tmp(a, b, c)"  {{abc t1} tmp {} {}}
+    4    "CREATE TABLE auxb.tbl(x, y)"     {{abc t1} tmp {} tbl}
+    5    "CREATE TABLE auxb.t1(k, v)"      {{abc t1} tmp {} {t1 tbl}}
+    6    "CREATE TABLE auxa.next(c, d)"    {{abc t1} tmp next {t1 tbl}}
+  }
+}
+
+# EVIDENCE-OF: R-18895-27365 If the "TEMP" or "TEMPORARY" keyword occurs
+# between the "CREATE" and "TABLE" then the new table is created in the
+# temp database.
+#
+drop_all_tables
+if {[permutation]!="maindbname"} {
+  do_createtable_tests 1.4 -tclquery {
+    unset -nocomplain X
+    array set X [table_list]
+    list $X(main) $X(temp) $X(auxa) $X(auxb)
+  } {
+    1    "CREATE TEMP TABLE t1(a, b)"      {{} t1 {} {}}
+    2    "CREATE TEMPORARY TABLE t2(a, b)" {{} {t1 t2} {} {}}
+  }
+}
+
+# EVIDENCE-OF: R-23976-43329 It is an error to specify both a
+# schema-name and the TEMP or TEMPORARY keyword, unless the schema-name
+# is "temp".
+#
+drop_all_tables
+do_createtable_tests 1.5.1 -error {
+  temporary table name must be unqualified
+} {
+  1    "CREATE TEMP TABLE main.t1(a, b)"        {}
+  2    "CREATE TEMPORARY TABLE auxa.t2(a, b)"   {}
+  3    "CREATE TEMP TABLE auxb.t3(a, b)"        {}
+  4    "CREATE TEMPORARY TABLE main.xxx(x)"     {}
+}
+drop_all_tables
+if {[permutation]!="maindbname"} {
+  do_createtable_tests 1.5.2 -tclquery {
+    unset -nocomplain X
+    array set X [table_list]
+    list $X(main) $X(temp) $X(auxa) $X(auxb)
+  } {
+    1    "CREATE TEMP TABLE temp.t1(a, b)"        {{} t1 {} {}}
+    2    "CREATE TEMPORARY TABLE temp.t2(a, b)"   {{} {t1 t2} {} {}}
+    3    "CREATE TEMP TABLE TEMP.t3(a, b)"        {{} {t1 t2 t3} {} {}}
+    4    "CREATE TEMPORARY TABLE TEMP.xxx(x)"     {{} {t1 t2 t3 xxx} {} {}}
+  }
+}
+
+# EVIDENCE-OF: R-31997-24564 If no schema name is specified and the TEMP
+# keyword is not present then the table is created in the main database.
+#
+drop_all_tables
+if {[permutation]!="maindbname"} {
+  do_createtable_tests 1.6 -tclquery {
+    unset -nocomplain X
+    array set X [table_list]
+    list $X(main) $X(temp) $X(auxa) $X(auxb)
+  } {
+    1    "CREATE TABLE t1(a, b)"   {t1 {} {} {}}
+    2    "CREATE TABLE t2(a, b)"   {{t1 t2} {} {} {}}
+    3    "CREATE TABLE t3(a, b)"   {{t1 t2 t3} {} {} {}}
+    4    "CREATE TABLE xxx(x)"     {{t1 t2 t3 xxx} {} {} {}}
+  }
+}
+
+drop_all_tables
+do_execsql_test e_createtable-1.7.0 {
+  CREATE TABLE t1(x, y);
+  CREATE INDEX i1 ON t1(x);
+  CREATE VIEW  v1 AS SELECT * FROM t1;
+
+  CREATE TABLE auxa.tbl1(x, y);
+  CREATE INDEX auxa.idx1 ON tbl1(x);
+  CREATE VIEW auxa.view1 AS SELECT * FROM tbl1;
+} {}
+
+# EVIDENCE-OF: R-01232-54838 It is usually an error to attempt to create
+# a new table in a database that already contains a table, index or view
+# of the same name.
+#
+#   Test cases 1.7.1.* verify that creating a table in a database with a
+#   table/index/view of the same name does fail. 1.7.2.* tests that creating
+#   a table with the same name as a table/index/view in a different database
+#   is Ok.
+#
+do_createtable_tests 1.7.1 -error { %s } {
+  1    "CREATE TABLE t1(a, b)"   {{table t1 already exists}}
+  2    "CREATE TABLE i1(a, b)"   {{there is already an index named i1}}
+  3    "CREATE TABLE v1(a, b)"   {{view v1 already exists}}
+  4    "CREATE TABLE auxa.tbl1(a, b)"   {{table tbl1 already exists}}
+  5    "CREATE TABLE auxa.idx1(a, b)"   {{there is already an index named idx1}}
+  6    "CREATE TABLE auxa.view1(a, b)"  {{view view1 already exists}}
+}
+do_createtable_tests 1.7.2 {
+  1    "CREATE TABLE auxa.t1(a, b)"   {}
+  2    "CREATE TABLE auxa.i1(a, b)"   {}
+  3    "CREATE TABLE auxa.v1(a, b)"   {}
+  4    "CREATE TABLE tbl1(a, b)"      {}
+  5    "CREATE TABLE idx1(a, b)"      {}
+  6    "CREATE TABLE view1(a, b)"     {}
+}
+
+# EVIDENCE-OF: R-33917-24086 However, if the "IF NOT EXISTS" clause is
+# specified as part of the CREATE TABLE statement and a table or view of
+# the same name already exists, the CREATE TABLE command simply has no
+# effect (and no error message is returned).
+#
+drop_all_tables
+do_execsql_test e_createtable-1.8.0 {
+  CREATE TABLE t1(x, y);
+  CREATE INDEX i1 ON t1(x);
+  CREATE VIEW  v1 AS SELECT * FROM t1;
+  CREATE TABLE auxa.tbl1(x, y);
+  CREATE INDEX auxa.idx1 ON tbl1(x);
+  CREATE VIEW auxa.view1 AS SELECT * FROM tbl1;
+} {}
+do_createtable_tests 1.8 {
+  1    "CREATE TABLE IF NOT EXISTS t1(a, b)"          {}
+  2    "CREATE TABLE IF NOT EXISTS auxa.tbl1(a, b)"   {}
+  3    "CREATE TABLE IF NOT EXISTS v1(a, b)"          {}
+  4    "CREATE TABLE IF NOT EXISTS auxa.view1(a, b)"  {}
+}
+
+# EVIDENCE-OF: R-16465-40078 An error is still returned if the table
+# cannot be created because of an existing index, even if the "IF NOT
+# EXISTS" clause is specified.
+#
+do_createtable_tests 1.9 -error { %s } {
+  1    "CREATE TABLE IF NOT EXISTS i1(a, b)"   
+       {{there is already an index named i1}}
+  2    "CREATE TABLE IF NOT EXISTS auxa.idx1(a, b)"   
+       {{there is already an index named idx1}}
+}
+
+# EVIDENCE-OF: R-05513-33819 It is not an error to create a table that
+# has the same name as an existing trigger.
+#
+drop_all_tables
+do_execsql_test e_createtable-1.10.0 {
+  CREATE TABLE t1(x, y);
+  CREATE TABLE auxb.t2(x, y);
+
+  CREATE TRIGGER tr1 AFTER INSERT ON t1 BEGIN
+    SELECT 1;
+  END;
+  CREATE TRIGGER auxb.tr2 AFTER INSERT ON t2 BEGIN
+    SELECT 1;
+  END;
+} {}
+do_createtable_tests 1.10 {
+  1    "CREATE TABLE tr1(a, b)"          {}
+  2    "CREATE TABLE tr2(a, b)"          {}
+  3    "CREATE TABLE auxb.tr1(a, b)"     {}
+  4    "CREATE TABLE auxb.tr2(a, b)"     {}
+}
+
+# EVIDENCE-OF: R-22283-14179 Tables are removed using the DROP TABLE
+# statement.
+#
+drop_all_tables
+do_execsql_test e_createtable-1.11.0 {
+  CREATE TABLE t1(a, b);
+  CREATE TABLE t2(a, b);
+  CREATE TABLE auxa.t3(a, b);
+  CREATE TABLE auxa.t4(a, b);
+} {}
+
+do_execsql_test e_createtable-1.11.1.1 {
+  SELECT * FROM t1;
+  SELECT * FROM t2;
+  SELECT * FROM t3;
+  SELECT * FROM t4;
+} {}
+do_execsql_test  e_createtable-1.11.1.2 { DROP TABLE t1 } {}
+do_catchsql_test e_createtable-1.11.1.3 { 
+  SELECT * FROM t1 
+} {1 {no such table: t1}}
+do_execsql_test  e_createtable-1.11.1.4 { DROP TABLE t3 } {}
+do_catchsql_test e_createtable-1.11.1.5 { 
+  SELECT * FROM t3 
+} {1 {no such table: t3}}
+
+do_execsql_test e_createtable-1.11.2.1 {
+  SELECT name FROM sqlite_master;
+  SELECT name FROM auxa.sqlite_master;
+} {t2 t4}
+do_execsql_test  e_createtable-1.11.2.2 { DROP TABLE t2 } {}
+do_execsql_test  e_createtable-1.11.2.3 { DROP TABLE t4 } {}
+do_execsql_test e_createtable-1.11.2.4 {
+  SELECT name FROM sqlite_master;
+  SELECT name FROM auxa.sqlite_master;
+} {}
+
+#-------------------------------------------------------------------------
+# Test cases e_createtable-2.* - test statements related to the CREATE
+# TABLE AS ... SELECT statement.
+#
+
+# Three Tcl commands:
+#
+#   select_column_names SQL
+#     The argument must be a SELECT statement. Return a list of the names
+#     of the columns of the result-set that would be returned by executing
+#     the SELECT.
+#
+#   table_column_names TBL
+#     The argument must be a table name. Return a list of column names, from
+#     left to right, for the table.
+#
+#   table_column_decltypes TBL
+#     The argument must be a table name. Return a list of column declared
+#     types, from left to right, for the table.
+#
+proc sci {select cmd} {
+  set res [list]
+  set STMT [sqlite3_prepare_v2 db $select -1 dummy]
+  for {set i 0} {$i < [sqlite3_column_count $STMT]} {incr i} {
+    lappend res [$cmd $STMT $i]
+  }
+  sqlite3_finalize $STMT
+  set res
+}
+proc tci {tbl cmd} { sci "SELECT * FROM $tbl" $cmd }
+proc select_column_names    {sql} { sci $sql sqlite3_column_name }
+proc table_column_names     {tbl} { tci $tbl sqlite3_column_name }
+proc table_column_decltypes {tbl} { tci $tbl sqlite3_column_decltype }
+
+# Create a database schema. This schema is used by tests 2.1.* through 2.3.*.
+#
+drop_all_tables
+do_execsql_test e_createtable-2.0 {
+  CREATE TABLE t1(a, b, c);
+  CREATE TABLE t2(d, e, f);
+  CREATE TABLE t3(g BIGINT, h VARCHAR(10));
+  CREATE TABLE t4(i BLOB, j ANYOLDATA);
+  CREATE TABLE t5(k FLOAT, l INTEGER);
+  CREATE TABLE t6(m DEFAULT 10, n DEFAULT 5, PRIMARY KEY(m, n));
+  CREATE TABLE t7(x INTEGER PRIMARY KEY);
+  CREATE TABLE t8(o COLLATE nocase DEFAULT 'abc');
+  CREATE TABLE t9(p NOT NULL, q DOUBLE CHECK (q!=0), r STRING UNIQUE);
+} {}
+
+# EVIDENCE-OF: R-64828-59568 The table has the same number of columns as
+# the rows returned by the SELECT statement. The name of each column is
+# the same as the name of the corresponding column in the result set of
+# the SELECT statement.
+#
+do_createtable_tests 2.1 -tclquery {
+  table_column_names x1
+} -repair {
+  catchsql { DROP TABLE x1 }
+} {
+  1    "CREATE TABLE x1 AS SELECT * FROM t1"                     {a b c}
+  2    "CREATE TABLE x1 AS SELECT c, b, a FROM t1"               {c b a}
+  3    "CREATE TABLE x1 AS SELECT * FROM t1, t2"                 {a b c d e f}
+  4    "CREATE TABLE x1 AS SELECT count(*) FROM t1"              {count(*)}
+  5    "CREATE TABLE x1 AS SELECT count(a) AS a, max(b) FROM t1" {a max(b)}
+}
+
+# EVIDENCE-OF: R-55407-45319 The declared type of each column is
+# determined by the expression affinity of the corresponding expression
+# in the result set of the SELECT statement, as follows: Expression
+# Affinity Column Declared Type TEXT "TEXT" NUMERIC "NUM" INTEGER "INT"
+# REAL "REAL" BLOB (a.k.a "NONE") "" (empty string)
+#
+do_createtable_tests 2.2 -tclquery {
+  table_column_decltypes x1
+} -repair {
+  catchsql { DROP TABLE x1 }
+} {
+  1    "CREATE TABLE x1 AS SELECT a FROM t1"     {""}
+  2    "CREATE TABLE x1 AS SELECT * FROM t3"     {INT TEXT}
+  3    "CREATE TABLE x1 AS SELECT * FROM t4"     {"" NUM}
+  4    "CREATE TABLE x1 AS SELECT * FROM t5"     {REAL INT}
+}
+
+# EVIDENCE-OF: R-16667-09772 A table created using CREATE TABLE AS has
+# no PRIMARY KEY and no constraints of any kind. The default value of
+# each column is NULL. The default collation sequence for each column of
+# the new table is BINARY.
+#
+#   The following tests create tables based on SELECT statements that read
+#   from tables that have primary keys, constraints and explicit default 
+#   collation sequences. None of this is transfered to the definition of
+#   the new table as stored in the sqlite_master table.
+#
+#   Tests 2.3.2.* show that the default value of each column is NULL.
+#
+do_createtable_tests 2.3.1 -query {
+  SELECT sql FROM sqlite_master ORDER BY rowid DESC LIMIT 1
+} {
+  1    "CREATE TABLE x1 AS SELECT * FROM t6" {{CREATE TABLE x1(m,n)}}
+  2    "CREATE TABLE x2 AS SELECT * FROM t7" {{CREATE TABLE x2(x INT)}}
+  3    "CREATE TABLE x3 AS SELECT * FROM t8" {{CREATE TABLE x3(o)}}
+  4    "CREATE TABLE x4 AS SELECT * FROM t9" {{CREATE TABLE x4(p,q REAL,r NUM)}}
+}
+do_execsql_test e_createtable-2.3.2.1 {
+  INSERT INTO x1 DEFAULT VALUES;
+  INSERT INTO x2 DEFAULT VALUES;
+  INSERT INTO x3 DEFAULT VALUES;
+  INSERT INTO x4 DEFAULT VALUES;
+} {}
+db nullvalue null
+do_execsql_test e_createtable-2.3.2.2 { SELECT * FROM x1 } {null null}
+do_execsql_test e_createtable-2.3.2.3 { SELECT * FROM x2 } {null}
+do_execsql_test e_createtable-2.3.2.4 { SELECT * FROM x3 } {null}
+do_execsql_test e_createtable-2.3.2.5 { SELECT * FROM x4 } {null null null}
+db nullvalue {}
+
+drop_all_tables
+do_execsql_test e_createtable-2.4.0 {
+  CREATE TABLE t1(x, y);
+  INSERT INTO t1 VALUES('i',   'one');
+  INSERT INTO t1 VALUES('ii',  'two');
+  INSERT INTO t1 VALUES('iii', 'three');
+} {}
+
+# EVIDENCE-OF: R-24153-28352 Tables created using CREATE TABLE AS are
+# initially populated with the rows of data returned by the SELECT
+# statement.
+#
+# EVIDENCE-OF: R-08224-30249 Rows are assigned contiguously ascending
+# rowid values, starting with 1, in the order that they are returned by
+# the SELECT statement.
+#
+#   Each test case below is specified as the name of a table to create
+#   using "CREATE TABLE ... AS SELECT ..." and a SELECT statement to use in
+#   creating it. The table is created. 
+#
+#   Test cases 2.4.*.1 check that after it has been created, the data in the
+#   table is the same as the data returned by the SELECT statement executed as
+#   a standalone command, verifying the first testable statement above.
+#
+#   Test cases 2.4.*.2 check that the rowids were allocated contiguously
+#   as required by the second testable statement above. That the rowids
+#   from the contiguous block were allocated to rows in the order rows are
+#   returned by the SELECT statement is verified by 2.4.*.1.
+#
+# EVIDENCE-OF: R-32365-09043 A "CREATE TABLE ... AS SELECT" statement
+# creates and populates a database table based on the results of a
+# SELECT statement.
+#
+#   The above is also considered to be tested by the following. It is
+#   clear that tables are being created and populated by the command in
+#   question.
+#
+foreach {tn tbl select} {
+  1   x1   "SELECT * FROM t1"
+  2   x2   "SELECT * FROM t1 ORDER BY x DESC"
+  3   x3   "SELECT * FROM t1 ORDER BY x ASC"
+} {
+  # Create the table using a "CREATE TABLE ... AS SELECT ..." command.
+  execsql [subst {CREATE TABLE $tbl AS $select}]
+
+  # Check that the rows inserted into the table, sorted in ascending rowid
+  # order, match those returned by executing the SELECT statement as a
+  # standalone command.
+  do_execsql_test e_createtable-2.4.$tn.1 [subst {
+    SELECT * FROM $tbl ORDER BY rowid;
+  }] [execsql $select]
+
+  # Check that the rowids in the new table are a contiguous block starting
+  # with rowid 1. Note that this will fail if SELECT statement $select 
+  # returns 0 rows (as max(rowid) will be NULL).
+  do_execsql_test e_createtable-2.4.$tn.2 [subst {
+    SELECT min(rowid), count(rowid)==max(rowid) FROM $tbl
+  }] {1 1}
+}
+
+#--------------------------------------------------------------------------
+# Test cases for column defintions in CREATE TABLE statements that do not
+# use a SELECT statement. Not including data constraints. In other words,
+# tests for the specification of:
+#
+#   * declared types,
+#   * default values, and
+#   * default collation sequences.
+#
+
+# EVIDENCE-OF: R-27219-49057 Unlike most SQL databases, SQLite does not
+# restrict the type of data that may be inserted into a column based on
+# the columns declared type.
+#
+#   Test this by creating a few tables with varied declared types, then
+#   inserting various different types of values into them.
+#
+drop_all_tables
+do_execsql_test e_createtable-3.1.0 {
+  CREATE TABLE t1(x VARCHAR(10), y INTEGER, z DOUBLE);
+  CREATE TABLE t2(a DATETIME, b STRING, c REAL);
+  CREATE TABLE t3(o, t);
+} {}
+
+# value type -> declared column type
+# ----------------------------------
+# integer    -> VARCHAR(10)
+# string     -> INTEGER
+# blob       -> DOUBLE
+#
+do_execsql_test e_createtable-3.1.1 {
+  INSERT INTO t1 VALUES(14, 'quite a lengthy string', X'555655');
+  SELECT * FROM t1;
+} {14 {quite a lengthy string} UVU}
+
+# string     -> DATETIME
+# integer    -> STRING
+# time       -> REAL
+#
+do_execsql_test e_createtable-3.1.2 {
+  INSERT INTO t2 VALUES('not a datetime', 13, '12:41:59');
+  SELECT * FROM t2;
+} {{not a datetime} 13 12:41:59}
+
+# EVIDENCE-OF: R-10565-09557 The declared type of a column is used to
+# determine the affinity of the column only.
+#
+#     Affinities are tested in more detail elsewhere (see document
+#     datatype3.html). Here, just test that affinity transformations
+#     consistent with the expected affinity of each column (based on
+#     the declared type) appear to take place.
+#
+# Affinities of t1 (test cases 3.2.1.*): TEXT, INTEGER, REAL
+# Affinities of t2 (test cases 3.2.2.*): NUMERIC, NUMERIC, REAL
+# Affinities of t3 (test cases 3.2.3.*): NONE, NONE
+#
+do_execsql_test e_createtable-3.2.0 { DELETE FROM t1; DELETE FROM t2; } {}
+
+do_createtable_tests 3.2.1 -query {
+  SELECT quote(x), quote(y), quote(z) FROM t1 ORDER BY rowid DESC LIMIT 1;
+} {
+  1   "INSERT INTO t1 VALUES(15,   '22.0', '14')"   {'15' 22 14.0}
+  2   "INSERT INTO t1 VALUES(22.0, 22.0, 22.0)"     {'22.0' 22 22.0}
+}
+do_createtable_tests 3.2.2 -query {
+  SELECT quote(a), quote(b), quote(c) FROM t2 ORDER BY rowid DESC LIMIT 1;
+} {
+  1   "INSERT INTO t2 VALUES(15,   '22.0', '14')"   {15   22  14.0}
+  2   "INSERT INTO t2 VALUES(22.0, 22.0, 22.0)"     {22   22  22.0}
+}
+do_createtable_tests 3.2.3 -query {
+  SELECT quote(o), quote(t) FROM t3 ORDER BY rowid DESC LIMIT 1;
+} {
+  1   "INSERT INTO t3 VALUES('15', '22.0')"         {'15' '22.0'}
+  2   "INSERT INTO t3 VALUES(15, 22.0)"             {15 22.0}
+}
+
+# EVIDENCE-OF: R-42316-09582 If there is no explicit DEFAULT clause
+# attached to a column definition, then the default value of the column
+# is NULL.
+#
+#     None of the columns in table t1 have an explicit DEFAULT clause.
+#     So testing that the default value of all columns in table t1 is
+#     NULL serves to verify the above.
+#     
+do_createtable_tests 3.2.3 -query {
+  SELECT quote(x), quote(y), quote(z) FROM t1
+} -repair {
+  execsql { DELETE FROM t1 }
+} {
+  1   "INSERT INTO t1(x, y) VALUES('abc', 'xyz')"   {'abc' 'xyz' NULL}
+  2   "INSERT INTO t1(x, z) VALUES('abc', 'xyz')"   {'abc' NULL 'xyz'}
+  3   "INSERT INTO t1 DEFAULT VALUES"               {NULL NULL NULL}
+}
+
+# EVIDENCE-OF: R-07343-35026 An explicit DEFAULT clause may specify that
+# the default value is NULL, a string constant, a blob constant, a
+# signed-number, or any constant expression enclosed in parentheses. A
+# default value may also be one of the special case-independent keywords
+# CURRENT_TIME, CURRENT_DATE or CURRENT_TIMESTAMP.
+#
+do_execsql_test e_createtable-3.3.1 {
+  CREATE TABLE t4(
+    a DEFAULT NULL,
+    b DEFAULT 'string constant',
+    c DEFAULT X'424C4F42',
+    d DEFAULT 1,
+    e DEFAULT -1,
+    f DEFAULT 3.14,
+    g DEFAULT -3.14,
+    h DEFAULT ( substr('abcd', 0, 2) || 'cd' ),
+    i DEFAULT CURRENT_TIME,
+    j DEFAULT CURRENT_DATE,
+    k DEFAULT CURRENT_TIMESTAMP
+  );
+} {}
+
+# EVIDENCE-OF: R-33440-07331 For the purposes of the DEFAULT clause, an
+# expression is considered constant if it contains no sub-queries,
+# column or table references, bound parameters, or string literals
+# enclosed in double-quotes instead of single-quotes.
+#
+do_createtable_tests 3.4.1 -error {
+  default value of column [x] is not constant
+} {
+  1   {CREATE TABLE t5(x DEFAULT ( (SELECT 1) ))}  {}
+  2   {CREATE TABLE t5(x DEFAULT ( "abc" ))}  {}
+  3   {CREATE TABLE t5(x DEFAULT ( 1 IN (SELECT 1) ))}  {}
+  4   {CREATE TABLE t5(x DEFAULT ( EXISTS (SELECT 1) ))}  {}
+  5   {CREATE TABLE t5(x DEFAULT ( x!=?1 ))}  {}
+}
+do_createtable_tests 3.4.2 -repair {
+  catchsql { DROP TABLE t5 }
+} {
+  1   {CREATE TABLE t5(x DEFAULT ( 'abc' ))}  {}
+  2   {CREATE TABLE t5(x DEFAULT ( 1 IN (1, 2, 3) ))}  {}
+}
+
+# EVIDENCE-OF: R-18814-23501 Each time a row is inserted into the table
+# by an INSERT statement that does not provide explicit values for all
+# table columns the values stored in the new row are determined by their
+# default values
+#
+#     Verify this with some assert statements for which all, some and no
+#     columns lack explicit values.
+#
+set sqlite_current_time 1000000000
+do_createtable_tests 3.5 -query {
+  SELECT quote(a), quote(b), quote(c), quote(d), quote(e), quote(f), 
+         quote(g), quote(h), quote(i), quote(j), quote(k)
+  FROM t4 ORDER BY rowid DESC LIMIT 1;
+} {
+  1 "INSERT INTO t4 DEFAULT VALUES" {
+    NULL {'string constant'} X'424C4F42' 1 -1 3.14 -3.14 
+    'acd' '01:46:40' '2001-09-09' {'2001-09-09 01:46:40'}
+  }
+
+  2 "INSERT INTO t4(a, b, c) VALUES(1, 2, 3)" {
+    1 2 3 1 -1 3.14 -3.14 'acd' '01:46:40' '2001-09-09' {'2001-09-09 01:46:40'}
+  }
+
+  3 "INSERT INTO t4(k, j, i) VALUES(1, 2, 3)" {
+    NULL {'string constant'} X'424C4F42' 1 -1 3.14 -3.14 'acd' 3 2 1
+  }
+
+  4 "INSERT INTO t4(a,b,c,d,e,f,g,h,i,j,k) VALUES(1,2,3,4,5,6,7,8,9,10,11)" {
+    1 2 3 4 5 6 7 8 9 10 11
+  }
+}
+
+# EVIDENCE-OF: R-12572-62501 If the default value of the column is a
+# constant NULL, text, blob or signed-number value, then that value is
+# used directly in the new row.
+#
+do_execsql_test e_createtable-3.6.1 {
+  CREATE TABLE t5(
+    a DEFAULT NULL,  
+    b DEFAULT 'text value',  
+    c DEFAULT X'424C4F42',
+    d DEFAULT -45678.6,
+    e DEFAULT 394507
+  );
+} {}
+do_execsql_test e_createtable-3.6.2 {
+  INSERT INTO t5 DEFAULT VALUES;
+  SELECT quote(a), quote(b), quote(c), quote(d), quote(e) FROM t5;
+} {NULL {'text value'} X'424C4F42' -45678.6 394507}
+
+# EVIDENCE-OF: R-60616-50251 If the default value of a column is an
+# expression in parentheses, then the expression is evaluated once for
+# each row inserted and the results used in the new row.
+#
+#   Test case 3.6.4 demonstrates that the expression is evaluated 
+#   separately for each row if the INSERT is an "INSERT INTO ... SELECT ..."
+#   command.
+#
+set ::nextint 0
+proc nextint {} { incr ::nextint }
+db func nextint nextint
+
+do_execsql_test e_createtable-3.7.1 {
+  CREATE TABLE t6(a DEFAULT ( nextint() ), b DEFAULT ( nextint() ));
+} {}
+do_execsql_test e_createtable-3.7.2 {
+  INSERT INTO t6 DEFAULT VALUES;
+  SELECT quote(a), quote(b) FROM t6;
+} {1 2}
+do_execsql_test e_createtable-3.7.3 {
+  INSERT INTO t6(a) VALUES('X');
+  SELECT quote(a), quote(b) FROM t6;
+} {1 2 'X' 3}
+do_execsql_test e_createtable-3.7.4 {
+  INSERT INTO t6(a) SELECT a FROM t6;
+  SELECT quote(a), quote(b) FROM t6;
+} {1 2 'X' 3 1 4 'X' 5}
+
+# EVIDENCE-OF: R-15363-55230 If the default value of a column is
+# CURRENT_TIME, CURRENT_DATE or CURRENT_TIMESTAMP, then the value used
+# in the new row is a text representation of the current UTC date and/or
+# time.
+#
+#     This is difficult to test literally without knowing what time the 
+#     user will run the tests. Instead, we test that the three cases
+#     above set the value to the current date and/or time according to
+#     the xCurrentTime() method of the VFS. Which is usually the same
+#     as UTC. In this case, however, we instrument it to always return
+#     a time equivalent to "2001-09-09 01:46:40 UTC".
+#
+set sqlite_current_time 1000000000
+do_execsql_test e_createtable-3.8.1 {
+  CREATE TABLE t7(
+    a DEFAULT CURRENT_TIME, 
+    b DEFAULT CURRENT_DATE, 
+    c DEFAULT CURRENT_TIMESTAMP
+  );
+} {}
+do_execsql_test e_createtable-3.8.2 {
+  INSERT INTO t7 DEFAULT VALUES;
+  SELECT quote(a), quote(b), quote(c) FROM t7;
+} {'01:46:40' '2001-09-09' {'2001-09-09 01:46:40'}}
+
+
+# EVIDENCE-OF: R-62327-53843 For CURRENT_TIME, the format of the value
+# is "HH:MM:SS".
+#
+# EVIDENCE-OF: R-03775-43471 For CURRENT_DATE, "YYYY-MM-DD".
+#
+# EVIDENCE-OF: R-07677-44926 The format for CURRENT_TIMESTAMP is
+# "YYYY-MM-DD HH:MM:SS".
+#
+#     The three above are demonstrated by tests 1, 2 and 3 below. 
+#     Respectively.
+#
+do_createtable_tests 3.8.3 -query {
+  SELECT a, b, c FROM t7 ORDER BY rowid DESC LIMIT 1;
+} {
+  1 "INSERT INTO t7(b, c) VALUES('x', 'y')" {01:46:40 x y}
+  2 "INSERT INTO t7(c, a) VALUES('x', 'y')" {y 2001-09-09 x}
+  3 "INSERT INTO t7(a, b) VALUES('x', 'y')" {x y {2001-09-09 01:46:40}}
+}
+
+# EVIDENCE-OF: R-55061-47754 The COLLATE clause specifies the name of a
+# collating sequence to use as the default collation sequence for the
+# column.
+#
+# EVIDENCE-OF: R-40275-54363 If no COLLATE clause is specified, the
+# default collation sequence is BINARY.
+#
+do_execsql_test e_createtable-3-9.1 {
+  CREATE TABLE t8(a COLLATE nocase, b COLLATE rtrim, c COLLATE binary, d);
+  INSERT INTO t8 VALUES('abc',   'abc',   'abc',   'abc');
+  INSERT INTO t8 VALUES('abc  ', 'abc  ', 'abc  ', 'abc  ');
+  INSERT INTO t8 VALUES('ABC  ', 'ABC  ', 'ABC  ', 'ABC  ');
+  INSERT INTO t8 VALUES('ABC',   'ABC',   'ABC',   'ABC');
+} {}
+do_createtable_tests 3.9 {
+  2    "SELECT a FROM t8 ORDER BY a, rowid"    {abc ABC {abc  } {ABC  }}
+  3    "SELECT b FROM t8 ORDER BY b, rowid"    {{ABC  } ABC abc {abc  }}
+  4    "SELECT c FROM t8 ORDER BY c, rowid"    {ABC {ABC  } abc {abc  }}
+  5    "SELECT d FROM t8 ORDER BY d, rowid"    {ABC {ABC  } abc {abc  }}
+}
+
+# EVIDENCE-OF: R-25473-20557 The number of columns in a table is limited
+# by the SQLITE_MAX_COLUMN compile-time parameter.
+#
+proc columns {n} {
+  set res [list]
+  for {set i 0} {$i < $n} {incr i} { lappend res "c$i" }
+  join $res ", "
+}
+do_execsql_test e_createtable-3.10.1 [subst {
+  CREATE TABLE t9([columns $::SQLITE_MAX_COLUMN]);
+}] {}
+do_catchsql_test e_createtable-3.10.2 [subst {
+  CREATE TABLE t10([columns [expr $::SQLITE_MAX_COLUMN+1]]);
+}] {1 {too many columns on t10}}
+
+# EVIDENCE-OF: R-27775-64721 Both of these limits can be lowered at
+# runtime using the sqlite3_limit() C/C++ interface.
+#
+#   A 30,000 byte blob consumes 30,003 bytes of record space. A record 
+#   that contains 3 such blobs consumes (30,000*3)+1 bytes of space. Tests
+#   3.11.4 and 3.11.5, which verify that SQLITE_MAX_LENGTH may be lowered
+#   at runtime, are based on this calculation.
+#
+sqlite3_limit db SQLITE_LIMIT_COLUMN 500
+do_execsql_test e_createtable-3.11.1 [subst {
+  CREATE TABLE t10([columns 500]);
+}] {}
+do_catchsql_test e_createtable-3.11.2 [subst {
+  CREATE TABLE t11([columns 501]);
+}] {1 {too many columns on t11}}
+
+# Check that it is not possible to raise the column limit above its 
+# default compile time value.
+#
+sqlite3_limit db SQLITE_LIMIT_COLUMN [expr $::SQLITE_MAX_COLUMN+2]
+do_catchsql_test e_createtable-3.11.3 [subst {
+  CREATE TABLE t11([columns [expr $::SQLITE_MAX_COLUMN+1]]);
+}] {1 {too many columns on t11}}
+
+sqlite3_limit db SQLITE_LIMIT_LENGTH 90010
+do_execsql_test e_createtable-3.11.4 {
+  CREATE TABLE t12(a, b, c);
+  INSERT INTO t12 VALUES(randomblob(30000),randomblob(30000),randomblob(30000));
+} {}
+do_catchsql_test e_createtable-3.11.5 {
+  INSERT INTO t12 VALUES(randomblob(30001),randomblob(30000),randomblob(30000));
+} {1 {string or blob too big}}
+
+#-------------------------------------------------------------------------
+# Tests for statements regarding constraints (PRIMARY KEY, UNIQUE, NOT 
+# NULL and CHECK constraints).
+#
+
+# EVIDENCE-OF: R-52382-54248 Each table in SQLite may have at most one
+# PRIMARY KEY.
+# 
+# EVIDENCE-OF: R-31826-01813 An error is raised if more than one PRIMARY
+# KEY clause appears in a CREATE TABLE statement.
+#
+#     To test the two above, show that zero primary keys is Ok, one primary
+#     key is Ok, and two or more primary keys is an error.
+#
+drop_all_tables
+do_createtable_tests 4.1.1 {
+  1    "CREATE TABLE t1(a, b, c)"                                        {}
+  2    "CREATE TABLE t2(a PRIMARY KEY, b, c)"                            {}
+  3    "CREATE TABLE t3(a, b, c, PRIMARY KEY(a))"                        {}
+  4    "CREATE TABLE t4(a, b, c, PRIMARY KEY(c,b,a))"                    {}
+}
+do_createtable_tests 4.1.2 -error {
+  table "t5" has more than one primary key
+} {
+  1    "CREATE TABLE t5(a PRIMARY KEY, b PRIMARY KEY, c)"                {}
+  2    "CREATE TABLE t5(a, b PRIMARY KEY, c, PRIMARY KEY(a))"            {}
+  3    "CREATE TABLE t5(a INTEGER PRIMARY KEY, b PRIMARY KEY, c)"        {}
+  4    "CREATE TABLE t5(a INTEGER PRIMARY KEY, b, c, PRIMARY KEY(b, c))" {}
+  5    "CREATE TABLE t5(a PRIMARY KEY, b, c, PRIMARY KEY(a))"            {}
+  6    "CREATE TABLE t5(a INTEGER PRIMARY KEY, b, c, PRIMARY KEY(a))"    {}
+}
+
+# EVIDENCE-OF: R-54755-39291 The PRIMARY KEY is optional for ordinary
+# tables but is required for WITHOUT ROWID tables.
+#
+do_catchsql_test 4.1.3 {
+  CREATE TABLE t6(a, b); --ok
+} {0 {}}
+do_catchsql_test 4.1.4 {
+  CREATE TABLE t7(a, b) WITHOUT ROWID; --Error, no PRIMARY KEY
+} {1 {PRIMARY KEY missing on table t7}}
+
+
+proc table_pk {tbl} { 
+  set pk [list]
+  db eval "pragma table_info($tbl)" a {
+    if {$a(pk)} { lappend pk $a(name) }
+  }
+  set pk
+}
+
+# EVIDENCE-OF: R-41411-18837 If the keywords PRIMARY KEY are added to a
+# column definition, then the primary key for the table consists of that
+# single column.
+#
+#     The above is tested by 4.2.1.*
+#
+# EVIDENCE-OF: R-31775-48204 Or, if a PRIMARY KEY clause is specified as
+# a table-constraint, then the primary key of the table consists of the
+# list of columns specified as part of the PRIMARY KEY clause.
+#
+#     The above is tested by 4.2.2.*
+#
+do_createtable_tests 4.2 -repair {
+  catchsql { DROP TABLE t5 }
+} -tclquery {
+  table_pk t5
+} {
+  1.1    "CREATE TABLE t5(a, b INTEGER PRIMARY KEY, c)"       {b}
+  1.2    "CREATE TABLE t5(a PRIMARY KEY, b, c)"               {a}
+
+  2.1    "CREATE TABLE t5(a, b, c, PRIMARY KEY(a))"           {a}
+  2.2    "CREATE TABLE t5(a, b, c, PRIMARY KEY(c,b,a))"       {a b c}
+  2.3    "CREATE TABLE t5(a, b INTEGER PRIMARY KEY, c)"       {b}
+}
+
+# EVIDENCE-OF: R-59124-61339 Each row in a table with a primary key must
+# have a unique combination of values in its primary key columns.
+#
+# EVIDENCE-OF: R-06471-16287 If an INSERT or UPDATE statement attempts
+# to modify the table content so that two or more rows have identical
+# primary key values, that is a constraint violation.
+#
+drop_all_tables
+do_execsql_test 4.3.0 {
+  CREATE TABLE t1(x PRIMARY KEY, y);
+  INSERT INTO t1 VALUES(0,          'zero');
+  INSERT INTO t1 VALUES(45.5,       'one');
+  INSERT INTO t1 VALUES('brambles', 'two');
+  INSERT INTO t1 VALUES(X'ABCDEF',  'three');
+
+  CREATE TABLE t2(x, y, PRIMARY KEY(x, y));
+  INSERT INTO t2 VALUES(0,          'zero');
+  INSERT INTO t2 VALUES(45.5,       'one');
+  INSERT INTO t2 VALUES('brambles', 'two');
+  INSERT INTO t2 VALUES(X'ABCDEF',  'three');
+} {}
+
+do_createtable_tests 4.3.1 -error {UNIQUE constraint failed: t1.x} {
+  1    "INSERT INTO t1 VALUES(0, 0)"                 {"column x is"}
+  2    "INSERT INTO t1 VALUES(45.5, 'abc')"          {"column x is"}
+  3    "INSERT INTO t1 VALUES(0.0, 'abc')"           {"column x is"}
+  4    "INSERT INTO t1 VALUES('brambles', 'abc')"    {"column x is"}
+  5    "INSERT INTO t1 VALUES(X'ABCDEF', 'abc')"     {"column x is"}
+}
+do_createtable_tests 4.3.1 -error {UNIQUE constraint failed: t2.x, t2.y} {
+  6    "INSERT INTO t2 VALUES(0, 'zero')"            {"columns x, y are"}
+  7    "INSERT INTO t2 VALUES(45.5, 'one')"          {"columns x, y are"}
+  8    "INSERT INTO t2 VALUES(0.0, 'zero')"          {"columns x, y are"}
+  9    "INSERT INTO t2 VALUES('brambles', 'two')"    {"columns x, y are"}
+  10   "INSERT INTO t2 VALUES(X'ABCDEF', 'three')"   {"columns x, y are"}
+}
+do_createtable_tests 4.3.2 {
+  1    "INSERT INTO t1 VALUES(-1, 0)"                {}
+  2    "INSERT INTO t1 VALUES(45.2, 'abc')"          {}
+  3    "INSERT INTO t1 VALUES(0.01, 'abc')"          {}
+  4    "INSERT INTO t1 VALUES('bramble', 'abc')"     {}
+  5    "INSERT INTO t1 VALUES(X'ABCDEE', 'abc')"     {}
+
+  6    "INSERT INTO t2 VALUES(0, 0)"                 {}
+  7    "INSERT INTO t2 VALUES(45.5, 'abc')"          {}
+  8    "INSERT INTO t2 VALUES(0.0, 'abc')"           {}
+  9    "INSERT INTO t2 VALUES('brambles', 'abc')"    {}
+  10   "INSERT INTO t2 VALUES(X'ABCDEF', 'abc')"     {}
+}
+do_createtable_tests 4.3.3 -error {UNIQUE constraint failed: t1.x} {
+  1    "UPDATE t1 SET x=0           WHERE y='two'"    {"column x is"}
+  2    "UPDATE t1 SET x='brambles'  WHERE y='three'"  {"column x is"}
+  3    "UPDATE t1 SET x=45.5        WHERE y='zero'"   {"column x is"}
+  4    "UPDATE t1 SET x=X'ABCDEF'   WHERE y='one'"    {"column x is"}
+  5    "UPDATE t1 SET x=0.0         WHERE y='three'"  {"column x is"}
+}
+do_createtable_tests 4.3.3 -error {UNIQUE constraint failed: t2.x, t2.y} {
+  6    "UPDATE t2 SET x=0, y='zero' WHERE y='two'"    {"columns x, y are"}
+  7    "UPDATE t2 SET x='brambles', y='two' WHERE y='three'"  
+       {"columns x, y are"}
+  8    "UPDATE t2 SET x=45.5, y='one' WHERE y='zero'" {"columns x, y are"}
+  9    "UPDATE t2 SET x=X'ABCDEF', y='three' WHERE y='one'" 
+       {"columns x, y are"}
+  10   "UPDATE t2 SET x=0.0, y='zero'        WHERE y='three'"  
+       {"columns x, y are"}
+}
+
+
+# EVIDENCE-OF: R-52572-02078 For the purposes of determining the
+# uniqueness of primary key values, NULL values are considered distinct
+# from all other values, including other NULLs.
+#
+do_createtable_tests 4.4 {
+  1    "INSERT INTO t1 VALUES(NULL, 0)"              {}
+  2    "INSERT INTO t1 VALUES(NULL, 0)"              {}
+  3    "INSERT INTO t1 VALUES(NULL, 0)"              {}
+
+  4    "INSERT INTO t2 VALUES(NULL, 'zero')"         {}
+  5    "INSERT INTO t2 VALUES(NULL, 'one')"          {}
+  6    "INSERT INTO t2 VALUES(NULL, 'two')"          {}
+  7    "INSERT INTO t2 VALUES(NULL, 'three')"        {}
+
+  8    "INSERT INTO t2 VALUES(0, NULL)"              {}
+  9    "INSERT INTO t2 VALUES(45.5, NULL)"           {}
+  10   "INSERT INTO t2 VALUES(0.0, NULL)"            {}
+  11   "INSERT INTO t2 VALUES('brambles', NULL)"     {}
+  12   "INSERT INTO t2 VALUES(X'ABCDEF', NULL)"      {}
+
+  13   "INSERT INTO t2 VALUES(NULL, NULL)"           {}
+  14   "INSERT INTO t2 VALUES(NULL, NULL)"           {}
+}
+
+# EVIDENCE-OF: R-40010-16873 Unless the column is an INTEGER PRIMARY KEY
+# or the table is a WITHOUT ROWID table or a STRICT table or the column
+# is declared NOT NULL, SQLite allows NULL values in a PRIMARY KEY
+# column.
+#
+#     If the column is an integer primary key, attempting to insert a NULL
+#     into the column triggers the auto-increment behavior. Attempting
+#     to use UPDATE to set an ipk column to a NULL value is an error.
+#
+do_createtable_tests 4.5.1 {
+  1    "SELECT count(*) FROM t1 WHERE x IS NULL"                   3
+  2    "SELECT count(*) FROM t2 WHERE x IS NULL"                   6
+  3    "SELECT count(*) FROM t2 WHERE y IS NULL"                   7
+  4    "SELECT count(*) FROM t2 WHERE x IS NULL AND y IS NULL"     2
+}
+do_execsql_test 4.5.2 {
+  CREATE TABLE t3(s, u INTEGER PRIMARY KEY, v);
+  INSERT INTO t3 VALUES(1, NULL, 2);
+  INSERT INTO t3 VALUES('x', NULL, 'y');
+  SELECT u FROM t3;
+} {1 2}
+do_catchsql_test 4.5.3 {
+  INSERT INTO t3 VALUES(2, 5, 3);
+  UPDATE t3 SET u = NULL WHERE s = 2;
+} {1 {datatype mismatch}}
+do_catchsql_test 4.5.4 {
+  CREATE TABLE t4(s, u INT PRIMARY KEY, v) WITHOUT ROWID;
+  INSERT INTO t4 VALUES(1, NULL, 2);
+} {1 {NOT NULL constraint failed: t4.u}}
+do_catchsql_test 4.5.5 {
+  CREATE TABLE t5(s, u INT PRIMARY KEY NOT NULL, v);
+  INSERT INTO t5 VALUES(1, NULL, 2);
+} {1 {NOT NULL constraint failed: t5.u}}
+do_catchsql_test 4.5.6 {
+  CREATE TABLE t6(s INT, u INT PRIMARY KEY, v INT) STRICT;
+  INSERT INTO t6 VALUES(1, NULL, 2);
+} {1 {NOT NULL constraint failed: t6.u}}
+do_catchsql_test 4.5.7 {
+  CREATE TABLE t7(s INT, u INT PRIMARY KEY NOT NULL, v INT) STRICT;
+  INSERT INTO t7 VALUES(1, NULL, 2);
+} {1 {NOT NULL constraint failed: t7.u}}
+
+# EVIDENCE-OF: R-00227-21080 A UNIQUE constraint is similar to a PRIMARY
+# KEY constraint, except that a single table may have any number of
+# UNIQUE constraints.
+#
+drop_all_tables
+do_createtable_tests 4.6 {
+  1    "CREATE TABLE t1(a UNIQUE, b UNIQUE)"                       {}
+  2    "CREATE TABLE t2(a UNIQUE, b, c, UNIQUE(c, b))"             {}
+  3    "CREATE TABLE t3(a, b, c, UNIQUE(a), UNIQUE(b), UNIQUE(c))" {}
+  4    "CREATE TABLE t4(a, b, c, UNIQUE(a, b, c))"                 {}
+}
+
+# EVIDENCE-OF: R-30981-64168 For each UNIQUE constraint on the table,
+# each row must contain a unique combination of values in the columns
+# identified by the UNIQUE constraint.
+#
+# EVIDENCE-OF: R-59124-61339 Each row in a table with a primary key must
+# have a unique combination of values in its primary key columns.
+#
+do_execsql_test 4.7.0 {
+  INSERT INTO t1 VALUES(1, 2);
+  INSERT INTO t1 VALUES(4.3, 5.5);
+  INSERT INTO t1 VALUES('reveal', 'variableness');
+  INSERT INTO t1 VALUES(X'123456', X'654321');
+
+  INSERT INTO t4 VALUES('xyx', 1, 1);
+  INSERT INTO t4 VALUES('xyx', 2, 1);
+  INSERT INTO t4 VALUES('uvw', 1, 1);
+}
+do_createtable_tests 4.7.1 -error {UNIQUE constraint failed: %s} {
+  1    "INSERT INTO t1 VALUES(1, 'one')"             {{t1.a}}
+  2    "INSERT INTO t1 VALUES(4.3, 'two')"           {{t1.a}}
+  3    "INSERT INTO t1 VALUES('reveal', 'three')"    {{t1.a}}
+  4    "INSERT INTO t1 VALUES(X'123456', 'four')"    {{t1.a}}
+
+  5    "UPDATE t1 SET a = 1 WHERE rowid=2"           {{t1.a}}
+  6    "UPDATE t1 SET a = 4.3 WHERE rowid=3"         {{t1.a}}
+  7    "UPDATE t1 SET a = 'reveal' WHERE rowid=4"    {{t1.a}}
+  8    "UPDATE t1 SET a = X'123456' WHERE rowid=1"   {{t1.a}}
+
+  9    "INSERT INTO t4 VALUES('xyx', 1, 1)"          {{t4.a, t4.b, t4.c}}
+  10   "INSERT INTO t4 VALUES('xyx', 2, 1)"          {{t4.a, t4.b, t4.c}}
+  11   "INSERT INTO t4 VALUES('uvw', 1, 1)"          {{t4.a, t4.b, t4.c}}
+
+  12   "UPDATE t4 SET a='xyx' WHERE rowid=3"         {{t4.a, t4.b, t4.c}}
+  13   "UPDATE t4 SET b=1 WHERE rowid=2"             {{t4.a, t4.b, t4.c}}
+  14   "UPDATE t4 SET a=0, b=0, c=0"                 {{t4.a, t4.b, t4.c}}
+}
+
+# EVIDENCE-OF: R-00404-17670 For the purposes of UNIQUE constraints,
+# NULL values are considered distinct from all other values, including
+# other NULLs.
+#
+do_createtable_tests 4.8 {
+  1    "INSERT INTO t1 VALUES(NULL, NULL)"           {}
+  2    "INSERT INTO t1 VALUES(NULL, NULL)"           {}
+  3    "UPDATE t1 SET a = NULL"                      {}
+  4    "UPDATE t1 SET b = NULL"                      {}
+
+  5    "INSERT INTO t4 VALUES(NULL, NULL, NULL)"     {}
+  6    "INSERT INTO t4 VALUES(NULL, NULL, NULL)"     {}
+  7    "UPDATE t4 SET a = NULL"                      {}
+  8    "UPDATE t4 SET b = NULL"                      {}
+  9    "UPDATE t4 SET c = NULL"                      {}
+}
+
+# EVIDENCE-OF: R-55820-29984 In most cases, UNIQUE and PRIMARY KEY
+# constraints are implemented by creating a unique index in the
+# database.
+do_createtable_tests 4.9 -repair drop_all_tables -query {
+  SELECT count(*) FROM sqlite_master WHERE type='index'
+} {
+  1    "CREATE TABLE t1(a TEXT PRIMARY KEY, b)"              1
+  2    "CREATE TABLE t1(a INTEGER PRIMARY KEY, b)"           0
+  3    "CREATE TABLE t1(a TEXT UNIQUE, b)"                   1
+  4    "CREATE TABLE t1(a PRIMARY KEY, b TEXT UNIQUE)"       2
+  5    "CREATE TABLE t1(a PRIMARY KEY, b, c, UNIQUE(c, b))"  2
+}
+
+# Obsolete: R-02252-33116 Such an index is used like any other index
+# in the database to optimize queries.
+#
+do_execsql_test 4.10.0 {
+  CREATE TABLE t1(a, b PRIMARY KEY);
+  CREATE TABLE t2(a, b, c, UNIQUE(b, c));
+}
+do_createtable_tests 4.10 {
+  1    "EXPLAIN QUERY PLAN SELECT * FROM t1 WHERE b = 5" 
+       {/*SEARCH t1 USING INDEX sqlite_autoindex_t1_1 (b=?)*/}
+
+  2    "EXPLAIN QUERY PLAN SELECT * FROM t2 ORDER BY b, c"
+       {/*SCAN t2 USING INDEX sqlite_autoindex_t2_1*/}
+
+  3    "EXPLAIN QUERY PLAN SELECT * FROM t2 WHERE b=10 AND c>10"
+       {/*SEARCH t2 USING INDEX sqlite_autoindex_t2_1 (b=? AND c>?)*/}
+}
+
+# EVIDENCE-OF: R-45493-35653 A CHECK constraint may be attached to a
+# column definition or specified as a table constraint. In practice it
+# makes no difference.
+#
+#   All the tests that deal with CHECK constraints below (4.11.* and 
+#   4.12.*) are run once for a table with the check constraint attached
+#   to a column definition, and once with a table where the check 
+#   condition is specified as a table constraint.
+#
+# EVIDENCE-OF: R-55435-14303 Each time a new row is inserted into the
+# table or an existing row is updated, the expression associated with
+# each CHECK constraint is evaluated and cast to a NUMERIC value in the
+# same way as a CAST expression. If the result is zero (integer value 0
+# or real value 0.0), then a constraint violation has occurred.
+#
+drop_all_tables
+do_execsql_test 4.11 {
+  CREATE TABLE x1(a TEXT, b INTEGER CHECK( b>0 ));
+  CREATE TABLE t1(a TEXT, b INTEGER, CHECK( b>0 ));
+  INSERT INTO x1 VALUES('x', 'xx');
+  INSERT INTO x1 VALUES('y', 'yy');
+  INSERT INTO t1 SELECT * FROM x1;
+
+  CREATE TABLE x2(a CHECK( a||b ), b);
+  CREATE TABLE t2(a, b, CHECK( a||b ));
+  INSERT INTO x2 VALUES(1, 'xx');
+  INSERT INTO x2 VALUES(1, 'yy');
+  INSERT INTO t2 SELECT * FROM x2;
+}
+
+do_createtable_tests 4.11 -error {CHECK constraint failed: %s} {
+  1a    "INSERT INTO x1 VALUES('one', 0)"       {b>0}
+  1b    "INSERT INTO t1 VALUES('one', -4.0)"    {b>0}
+
+  2a    "INSERT INTO x2 VALUES('abc', 1)"       {a||b}
+  2b    "INSERT INTO t2 VALUES('abc', 1)"       {a||b}
+
+  3a    "INSERT INTO x2 VALUES(0, 'abc')"       {a||b}
+  3b    "INSERT INTO t2 VALUES(0, 'abc')"       {a||b}
+
+  4a    "UPDATE t1 SET b=-1 WHERE rowid=1"      {b>0}
+  4b    "UPDATE x1 SET b=-1 WHERE rowid=1"      {b>0}
+
+  4a    "UPDATE x2 SET a='' WHERE rowid=1"      {a||b}
+  4b    "UPDATE t2 SET a='' WHERE rowid=1"      {a||b}
+}
+
+# EVIDENCE-OF: R-34109-39108 If the CHECK expression evaluates to NULL,
+# or any other non-zero value, it is not a constraint violation.
+#
+do_createtable_tests 4.12 {
+  1a    "INSERT INTO x1 VALUES('one', NULL)"    {}
+  1b    "INSERT INTO t1 VALUES('one', NULL)"    {}
+
+  2a    "INSERT INTO x1 VALUES('one', 2)"    {}
+  2b    "INSERT INTO t1 VALUES('one', 2)"    {}
+
+  3a    "INSERT INTO x2 VALUES(1, 'abc')"       {}
+  3b    "INSERT INTO t2 VALUES(1, 'abc')"       {}
+}
+
+# EVIDENCE-OF: R-02060-64547 A NOT NULL constraint may only be attached
+# to a column definition, not specified as a table constraint.
+#
+drop_all_tables
+do_createtable_tests 4.13.1 {
+  1     "CREATE TABLE t1(a NOT NULL, b)"                               {}
+  2     "CREATE TABLE t2(a PRIMARY KEY NOT NULL, b)"                   {}
+  3     "CREATE TABLE t3(a NOT NULL, b NOT NULL, c NOT NULL UNIQUE)"   {}
+}
+do_createtable_tests 4.13.2 -error {
+  near "NOT": syntax error
+} {
+  1     "CREATE TABLE t4(a, b, NOT NULL(a))"                   {}
+  2     "CREATE TABLE t4(a PRIMARY KEY, b, NOT NULL(a))"       {}
+  3     "CREATE TABLE t4(a, b, c UNIQUE, NOT NULL(a, b, c))"   {}
+}
+
+# EVIDENCE-OF: R-31795-57643 a NOT NULL constraint dictates that the
+# associated column may not contain a NULL value. Attempting to set the
+# column value to NULL when inserting a new row or updating an existing
+# one causes a constraint violation.
+#
+#     These tests use the tables created by 4.13.
+#
+do_execsql_test 4.14.0 {
+  INSERT INTO t1 VALUES('x', 'y');
+  INSERT INTO t1 VALUES('z', NULL);
+
+  INSERT INTO t2 VALUES('x', 'y');
+  INSERT INTO t2 VALUES('z', NULL);
+
+  INSERT INTO t3 VALUES('x', 'y', 'z');
+  INSERT INTO t3 VALUES(1, 2, 3);
+}
+do_createtable_tests 4.14 -error {NOT NULL constraint failed: %s} {
+  1    "INSERT INTO t1 VALUES(NULL, 'a')"         {t1.a}
+  2    "INSERT INTO t2 VALUES(NULL, 'b')"         {t2.a}
+  3    "INSERT INTO t3 VALUES('c', 'd', NULL)"    {t3.c}
+  4    "INSERT INTO t3 VALUES('e', NULL, 'f')"    {t3.b}
+  5    "INSERT INTO t3 VALUES(NULL, 'g', 'h')"    {t3.a}
+}
+
+# EVIDENCE-OF: R-34093-09213 PRIMARY KEY, UNIQUE and NOT NULL
+# constraints may be explicitly assigned another default conflict
+# resolution algorithm by including a conflict-clause in their
+# definitions.
+#
+#     Conflict clauses: ABORT, ROLLBACK, IGNORE, FAIL, REPLACE
+#
+#     Test cases 4.15.*, 4.16.* and 4.17.* focus on PRIMARY KEY, NOT NULL
+#     and UNIQUE constraints, respectively.
+#
+drop_all_tables
+do_execsql_test 4.15.0 {
+  CREATE TABLE t1_ab(a PRIMARY KEY ON CONFLICT ABORT, b);
+  CREATE TABLE t1_ro(a PRIMARY KEY ON CONFLICT ROLLBACK, b);
+  CREATE TABLE t1_ig(a PRIMARY KEY ON CONFLICT IGNORE, b);
+  CREATE TABLE t1_fa(a PRIMARY KEY ON CONFLICT FAIL, b);
+  CREATE TABLE t1_re(a PRIMARY KEY ON CONFLICT REPLACE, b);
+  CREATE TABLE t1_xx(a PRIMARY KEY, b);
+
+  INSERT INTO t1_ab VALUES(1, 'one');
+  INSERT INTO t1_ab VALUES(2, 'two');
+  INSERT INTO t1_ro SELECT * FROM t1_ab;
+  INSERT INTO t1_ig SELECT * FROM t1_ab;
+  INSERT INTO t1_fa SELECT * FROM t1_ab;
+  INSERT INTO t1_re SELECT * FROM t1_ab;
+  INSERT INTO t1_xx SELECT * FROM t1_ab;
+
+  CREATE TABLE t2_ab(a, b NOT NULL ON CONFLICT ABORT);
+  CREATE TABLE t2_ro(a, b NOT NULL ON CONFLICT ROLLBACK);
+  CREATE TABLE t2_ig(a, b NOT NULL ON CONFLICT IGNORE);
+  CREATE TABLE t2_fa(a, b NOT NULL ON CONFLICT FAIL);
+  CREATE TABLE t2_re(a, b NOT NULL ON CONFLICT REPLACE);
+  CREATE TABLE t2_xx(a, b NOT NULL);
+
+  INSERT INTO t2_ab VALUES(1, 'one');
+  INSERT INTO t2_ab VALUES(2, 'two');
+  INSERT INTO t2_ro SELECT * FROM t2_ab;
+  INSERT INTO t2_ig SELECT * FROM t2_ab;
+  INSERT INTO t2_fa SELECT * FROM t2_ab;
+  INSERT INTO t2_re SELECT * FROM t2_ab;
+  INSERT INTO t2_xx SELECT * FROM t2_ab;
+
+  CREATE TABLE t3_ab(a, b, UNIQUE(a, b) ON CONFLICT ABORT);
+  CREATE TABLE t3_ro(a, b, UNIQUE(a, b) ON CONFLICT ROLLBACK);
+  CREATE TABLE t3_ig(a, b, UNIQUE(a, b) ON CONFLICT IGNORE);
+  CREATE TABLE t3_fa(a, b, UNIQUE(a, b) ON CONFLICT FAIL);
+  CREATE TABLE t3_re(a, b, UNIQUE(a, b) ON CONFLICT REPLACE);
+  CREATE TABLE t3_xx(a, b, UNIQUE(a, b));
+
+  INSERT INTO t3_ab VALUES(1, 'one');
+  INSERT INTO t3_ab VALUES(2, 'two');
+  INSERT INTO t3_ro SELECT * FROM t3_ab;
+  INSERT INTO t3_ig SELECT * FROM t3_ab;
+  INSERT INTO t3_fa SELECT * FROM t3_ab;
+  INSERT INTO t3_re SELECT * FROM t3_ab;
+  INSERT INTO t3_xx SELECT * FROM t3_ab;
+}
+
+foreach {tn tbl res ac data} {
+  1   t1_ab    {1 {UNIQUE constraint failed: t1_ab.a}} 0 {1 one 2 two 3 three}
+  2   t1_ro    {1 {UNIQUE constraint failed: t1_ro.a}} 1 {1 one 2 two}
+  3   t1_fa    {1 {UNIQUE constraint failed: t1_fa.a}} 0 {1 one 2 two 3 three 4 string}
+  4   t1_ig    {0 {}} 0 {1 one 2 two 3 three 4 string 6 string}
+  5   t1_re    {0 {}} 0 {1 one 2 two 4 string 3 string 6 string}
+  6   t1_xx    {1 {UNIQUE constraint failed: t1_xx.a}} 0 {1 one 2 two 3 three}
+} {
+  catchsql COMMIT
+  do_execsql_test  4.15.$tn.1 "BEGIN; INSERT INTO $tbl VALUES(3, 'three')"
+
+  do_catchsql_test 4.15.$tn.2 " 
+    INSERT INTO $tbl SELECT ((a%2)*a+3), 'string' FROM $tbl;
+  " $res
+
+  do_test e_createtable-4.15.$tn.3 { sqlite3_get_autocommit db } $ac
+  do_execsql_test 4.15.$tn.4 "SELECT * FROM $tbl" $data
+}
+foreach {tn tbl res ac data} {
+  1   t2_ab    {1 {NOT NULL constraint failed: t2_ab.b}} 0 {1 one 2 two 3 three}
+  2   t2_ro    {1 {NOT NULL constraint failed: t2_ro.b}} 1 {1 one 2 two}
+  3   t2_fa    {1 {NOT NULL constraint failed: t2_fa.b}} 0 {1 one 2 two 3 three 4 xx}
+  4   t2_ig    {0 {}} 0 {1 one 2 two 3 three 4 xx 6 xx}
+  5   t2_re    {1 {NOT NULL constraint failed: t2_re.b}} 0 {1 one 2 two 3 three}
+  6   t2_xx    {1 {NOT NULL constraint failed: t2_xx.b}} 0 {1 one 2 two 3 three}
+} {
+  catchsql COMMIT
+  do_execsql_test  4.16.$tn.1 "BEGIN; INSERT INTO $tbl VALUES(3, 'three')"
+
+  do_catchsql_test 4.16.$tn.2 " 
+    INSERT INTO $tbl SELECT a+3, CASE a WHEN 2 THEN NULL ELSE 'xx' END FROM $tbl
+  " $res
+
+  do_test e_createtable-4.16.$tn.3 { sqlite3_get_autocommit db } $ac
+  do_execsql_test 4.16.$tn.4 "SELECT * FROM $tbl" $data
+}
+foreach {tn tbl res ac data} {
+  1   t3_ab    {1 {UNIQUE constraint failed: t3_ab.a, t3_ab.b}}
+               0 {1 one 2 two 3 three}
+  2   t3_ro    {1 {UNIQUE constraint failed: t3_ro.a, t3_ro.b}}
+               1 {1 one 2 two}
+  3   t3_fa    {1 {UNIQUE constraint failed: t3_fa.a, t3_fa.b}}
+               0 {1 one 2 two 3 three 4 three}
+  4   t3_ig    {0 {}} 0 {1 one 2 two 3 three 4 three 6 three}
+  5   t3_re    {0 {}} 0 {1 one 2 two 4 three 3 three 6 three}
+  6   t3_xx    {1 {UNIQUE constraint failed: t3_xx.a, t3_xx.b}}
+               0 {1 one 2 two 3 three}
+} {
+  catchsql COMMIT
+  do_execsql_test  4.17.$tn.1 "BEGIN; INSERT INTO $tbl VALUES(3, 'three')"
+
+  do_catchsql_test 4.17.$tn.2 " 
+    INSERT INTO $tbl SELECT ((a%2)*a+3), 'three' FROM $tbl
+  " $res
+
+  do_test e_createtable-4.17.$tn.3 { sqlite3_get_autocommit db } $ac
+  do_execsql_test 4.17.$tn.4 "SELECT * FROM $tbl ORDER BY rowid" $data
+}
+catchsql COMMIT
+
+# EVIDENCE-OF: R-17539-59899 Or, if a constraint definition does not
+# include a conflict-clause, the default conflict resolution algorithm
+# is ABORT.
+#
+#     The first half of the above is tested along with explicit ON 
+#     CONFLICT clauses above (specifically, the tests involving t1_xx, t2_xx
+#     and t3_xx). The following just tests that the default conflict
+#     handling for CHECK constraints is ABORT.
+#
+do_execsql_test 4.18.1 {
+  CREATE TABLE t4(a, b CHECK (b!=10));
+  INSERT INTO t4 VALUES(1, 2);
+  INSERT INTO t4 VALUES(3, 4);
+}
+do_execsql_test  4.18.2 { BEGIN; INSERT INTO t4 VALUES(5, 6) }
+do_catchsql_test 4.18.3 { 
+  INSERT INTO t4 SELECT a+4, b+4 FROM t4
+} {1 {CHECK constraint failed: b!=10}}
+do_test e_createtable-4.18.4 { sqlite3_get_autocommit db } 0
+do_execsql_test 4.18.5 { SELECT * FROM t4 } {1 2 3 4 5 6}
+
+# EVIDENCE-OF: R-19114-56113 Different constraints within the same table
+# may have different default conflict resolution algorithms.
+#
+do_execsql_test 4.19.0 {
+  CREATE TABLE t5(a NOT NULL ON CONFLICT IGNORE, b NOT NULL ON CONFLICT ABORT);
+}
+do_catchsql_test 4.19.1 { INSERT INTO t5 VALUES(NULL, 'not null') } {0 {}}
+do_execsql_test  4.19.2 { SELECT * FROM t5 } {}
+do_catchsql_test 4.19.3 { INSERT INTO t5 VALUES('not null', NULL) } \
+  {1 {NOT NULL constraint failed: t5.b}}
+do_execsql_test  4.19.4 { SELECT * FROM t5 } {}
+
+#------------------------------------------------------------------------
+# Tests for INTEGER PRIMARY KEY and rowid related statements.
+#
+
+# EVIDENCE-OF: R-52584-04009 The rowid value can be accessed using one
+# of the special case-independent names "rowid", "oid", or "_rowid_" in
+# place of a column name.
+#
+# EVIDENCE-OF: R-06726-07466 A column name can be any of the names
+# defined in the CREATE TABLE statement or one of the following special
+# identifiers: "ROWID", "OID", or "_ROWID_".
+#
+drop_all_tables
+do_execsql_test 5.1.0 {
+  CREATE TABLE t1(x, y);
+  INSERT INTO t1 VALUES('one', 'first');
+  INSERT INTO t1 VALUES('two', 'second');
+  INSERT INTO t1 VALUES('three', 'third');
+}
+do_createtable_tests 5.1 {
+  1   "SELECT rowid FROM t1"        {1 2 3}
+  2   "SELECT oid FROM t1"          {1 2 3}
+  3   "SELECT _rowid_ FROM t1"      {1 2 3}
+  4   "SELECT ROWID FROM t1"        {1 2 3}
+  5   "SELECT OID FROM t1"          {1 2 3}
+  6   "SELECT _ROWID_ FROM t1"      {1 2 3}
+  7   "SELECT RoWiD FROM t1"        {1 2 3}
+  8   "SELECT OiD FROM t1"          {1 2 3}
+  9   "SELECT _RoWiD_ FROM t1"      {1 2 3}
+}
+
+# EVIDENCE-OF: R-26501-17306 If a table contains a user defined column
+# named "rowid", "oid" or "_rowid_", then that name always refers the
+# explicitly declared column and cannot be used to retrieve the integer
+# rowid value.
+#
+# EVIDENCE-OF: R-44615-33286 The special identifiers only refer to the
+# row key if the CREATE TABLE statement does not define a real column
+# with the same name.
+#
+do_execsql_test 5.2.0 {
+  CREATE TABLE t2(oid, b);
+  CREATE TABLE t3(a, _rowid_);
+  CREATE TABLE t4(a, b, rowid);
+
+  INSERT INTO t2 VALUES('one', 'two');
+  INSERT INTO t2 VALUES('three', 'four');
+
+  INSERT INTO t3 VALUES('five', 'six');
+  INSERT INTO t3 VALUES('seven', 'eight');
+
+  INSERT INTO t4 VALUES('nine', 'ten', 'eleven');
+  INSERT INTO t4 VALUES('twelve', 'thirteen', 'fourteen');
+}
+do_createtable_tests 5.2 {
+  1   "SELECT oid, rowid, _rowid_ FROM t2"   {one 1 1      three 2 2}
+  2   "SELECT oid, rowid, _rowid_ FROM t3"   {1 1 six      2 2 eight} 
+  3   "SELECT oid, rowid, _rowid_ FROM t4"   {1 eleven 1   2 fourteen 2}
+}
+
+
+# Argument $tbl is the name of a table in the database. Argument $col is
+# the name of one of the tables columns. Return 1 if $col is an alias for
+# the rowid, or 0 otherwise.
+#
+proc is_integer_primary_key {tbl col} {
+  lindex [db eval [subst {
+    DELETE FROM $tbl;
+    INSERT INTO $tbl ($col) VALUES(0);
+    SELECT (rowid==$col) FROM $tbl;
+    DELETE FROM $tbl;
+  }]] 0
+}
+
+# EVIDENCE-OF: R-47901-33947 With one exception noted below, if a rowid
+# table has a primary key that consists of a single column and the
+# declared type of that column is "INTEGER" in any mixture of upper and
+# lower case, then the column becomes an alias for the rowid.
+#
+# EVIDENCE-OF: R-45951-08347 if the declaration of a column with
+# declared type "INTEGER" includes an "PRIMARY KEY DESC" clause, it does
+# not become an alias for the rowid and is not classified as an integer
+# primary key.
+#
+do_createtable_tests 5.3 -tclquery { 
+  is_integer_primary_key t5 pk
+} -repair {
+  catchsql { DROP TABLE t5 }
+} {
+  1   "CREATE TABLE t5(pk integer primary key)"                         1
+  2   "CREATE TABLE t5(pk integer, primary key(pk))"                    1
+  3   "CREATE TABLE t5(pk integer, v integer, primary key(pk))"         1
+  4   "CREATE TABLE t5(pk integer, v integer, primary key(pk, v))"      0
+  5   "CREATE TABLE t5(pk int, v integer, primary key(pk, v))"          0
+  6   "CREATE TABLE t5(pk int, v integer, primary key(pk))"             0
+  7   "CREATE TABLE t5(pk int primary key, v integer)"                  0
+  8   "CREATE TABLE t5(pk inTEger primary key)"                         1
+  9   "CREATE TABLE t5(pk inteGEr, primary key(pk))"                    1
+  10  "CREATE TABLE t5(pk INTEGER, v integer, primary key(pk))"         1
+}
+
+# EVIDENCE-OF: R-41444-49665 Other integer type names like "INT" or
+# "BIGINT" or "SHORT INTEGER" or "UNSIGNED INTEGER" causes the primary
+# key column to behave as an ordinary table column with integer affinity
+# and a unique index, not as an alias for the rowid.
+#
+do_execsql_test 5.4.1 {
+  CREATE TABLE t6(pk INT primary key);
+  CREATE TABLE t7(pk BIGINT primary key);
+  CREATE TABLE t8(pk SHORT INTEGER primary key);
+  CREATE TABLE t9(pk UNSIGNED INTEGER primary key);
+} 
+do_test e_createtable-5.4.2.1 { is_integer_primary_key t6 pk } 0
+do_test e_createtable-5.4.2.2 { is_integer_primary_key t7 pk } 0
+do_test e_createtable-5.4.2.3 { is_integer_primary_key t8 pk } 0
+do_test e_createtable-5.4.2.4 { is_integer_primary_key t9 pk } 0
+
+do_execsql_test 5.4.3 {
+  INSERT INTO t6 VALUES('2.0');
+  INSERT INTO t7 VALUES('2.0');
+  INSERT INTO t8 VALUES('2.0');
+  INSERT INTO t9 VALUES('2.0');
+  SELECT typeof(pk), pk FROM t6;
+  SELECT typeof(pk), pk FROM t7;
+  SELECT typeof(pk), pk FROM t8;
+  SELECT typeof(pk), pk FROM t9;
+} {integer 2 integer 2 integer 2 integer 2}
+
+do_catchsql_test 5.4.4.1 { 
+  INSERT INTO t6 VALUES(2) 
+} {1 {UNIQUE constraint failed: t6.pk}}
+do_catchsql_test 5.4.4.2 { 
+  INSERT INTO t7 VALUES(2) 
+} {1 {UNIQUE constraint failed: t7.pk}}
+do_catchsql_test 5.4.4.3 { 
+  INSERT INTO t8 VALUES(2) 
+} {1 {UNIQUE constraint failed: t8.pk}}
+do_catchsql_test 5.4.4.4 { 
+  INSERT INTO t9 VALUES(2) 
+} {1 {UNIQUE constraint failed: t9.pk}}
+
+# EVIDENCE-OF: R-56094-57830 the following three table declarations all
+# cause the column "x" to be an alias for the rowid (an integer primary
+# key): CREATE TABLE t(x INTEGER PRIMARY KEY ASC, y, z); CREATE TABLE
+# t(x INTEGER, y, z, PRIMARY KEY(x ASC)); CREATE TABLE t(x INTEGER, y,
+# z, PRIMARY KEY(x DESC));
+#
+# EVIDENCE-OF: R-20149-25884 the following declaration does not result
+# in "x" being an alias for the rowid: CREATE TABLE t(x INTEGER PRIMARY
+# KEY DESC, y, z);
+#
+do_createtable_tests 5 -tclquery { 
+  is_integer_primary_key t x
+} -repair {
+  catchsql { DROP TABLE t }
+} {
+  5.1    "CREATE TABLE t(x INTEGER PRIMARY KEY ASC, y, z)"      1
+  5.2    "CREATE TABLE t(x INTEGER, y, z, PRIMARY KEY(x ASC))"  1
+  5.3    "CREATE TABLE t(x INTEGER, y, z, PRIMARY KEY(x DESC))" 1
+  6.1    "CREATE TABLE t(x INTEGER PRIMARY KEY DESC, y, z)"     0
+}
+
+# EVIDENCE-OF: R-03733-29734 Rowid values may be modified using an
+# UPDATE statement in the same way as any other column value can, either
+# using one of the built-in aliases ("rowid", "oid" or "_rowid_") or by
+# using an alias created by an integer primary key.
+#
+do_execsql_test 5.7.0 {
+  CREATE TABLE t10(a, b);
+  INSERT INTO t10 VALUES('ten', 10);
+
+  CREATE TABLE t11(a, b INTEGER PRIMARY KEY);
+  INSERT INTO t11 VALUES('ten', 10);
+}
+do_createtable_tests 5.7.1 -query { 
+  SELECT rowid, _rowid_, oid FROM t10;
+} {
+  1    "UPDATE t10 SET rowid = 5"   {5 5 5}
+  2    "UPDATE t10 SET _rowid_ = 6" {6 6 6}
+  3    "UPDATE t10 SET oid = 7"     {7 7 7}
+}
+do_createtable_tests 5.7.2 -query { 
+  SELECT rowid, _rowid_, oid, b FROM t11;
+} {
+  1    "UPDATE t11 SET rowid = 5"   {5 5 5 5}
+  2    "UPDATE t11 SET _rowid_ = 6" {6 6 6 6}
+  3    "UPDATE t11 SET oid = 7"     {7 7 7 7}
+  4    "UPDATE t11 SET b = 8"       {8 8 8 8}
+}
+
+# EVIDENCE-OF: R-58706-14229 Similarly, an INSERT statement may provide
+# a value to use as the rowid for each row inserted.
+#
+do_createtable_tests 5.8.1 -query { 
+  SELECT rowid, _rowid_, oid FROM t10;
+} -repair { 
+  execsql { DELETE FROM t10 } 
+} {
+  1    "INSERT INTO t10(oid) VALUES(15)"           {15 15 15}
+  2    "INSERT INTO t10(rowid) VALUES(16)"         {16 16 16}
+  3    "INSERT INTO t10(_rowid_) VALUES(17)"       {17 17 17}
+  4    "INSERT INTO t10(a, b, oid) VALUES(1,2,3)"  {3 3 3}
+}
+do_createtable_tests 5.8.2 -query { 
+  SELECT rowid, _rowid_, oid, b FROM t11;
+} -repair { 
+  execsql { DELETE FROM t11 } 
+} {
+  1    "INSERT INTO t11(oid) VALUES(15)"           {15 15 15 15}
+  2    "INSERT INTO t11(rowid) VALUES(16)"         {16 16 16 16}
+  3    "INSERT INTO t11(_rowid_) VALUES(17)"       {17 17 17 17}
+  4    "INSERT INTO t11(a, b) VALUES(1,2)"         {2 2 2 2}
+}
+
+# EVIDENCE-OF: R-32326-44592 Unlike normal SQLite columns, an integer
+# primary key or rowid column must contain integer values. Integer
+# primary key or rowid columns are not able to hold floating point
+# values, strings, BLOBs, or NULLs.
+#
+#     This is considered by the tests for the following 3 statements,
+#     which show that:
+#
+#       1. Attempts to UPDATE a rowid column to a non-integer value fail,
+#       2. Attempts to INSERT a real, string or blob value into a rowid 
+#          column fail, and
+#       3. Attempting to INSERT a NULL value into a rowid column causes the
+#          system to automatically select an integer value to use.
+#
+
+
+# EVIDENCE-OF: R-64224-62578 If an UPDATE statement attempts to set an
+# integer primary key or rowid column to a NULL or blob value, or to a
+# string or real value that cannot be losslessly converted to an
+# integer, a "datatype mismatch" error occurs and the statement is
+# aborted.
+#
+drop_all_tables
+do_execsql_test 5.9.0 {
+  CREATE TABLE t12(x INTEGER PRIMARY KEY, y);
+  INSERT INTO t12 VALUES(5, 'five');
+}
+do_createtable_tests 5.9.1 -query { SELECT typeof(x), x FROM t12 } {
+  1   "UPDATE t12 SET x = 4"       {integer 4}
+  2   "UPDATE t12 SET x = 10.0"    {integer 10}
+  3   "UPDATE t12 SET x = '12.0'"  {integer 12}
+  4   "UPDATE t12 SET x = '-15.0'" {integer -15}
+}
+do_createtable_tests 5.9.2 -error {
+  datatype mismatch
+} {
+  1   "UPDATE t12 SET x = 4.1"         {}
+  2   "UPDATE t12 SET x = 'hello'"     {}
+  3   "UPDATE t12 SET x = NULL"        {}
+  4   "UPDATE t12 SET x = X'ABCD'"     {}
+  5   "UPDATE t12 SET x = X'3900'"     {}
+  6   "UPDATE t12 SET x = X'39'"       {}
+}
+
+# EVIDENCE-OF: R-05734-13629 If an INSERT statement attempts to insert a
+# blob value, or a string or real value that cannot be losslessly
+# converted to an integer into an integer primary key or rowid column, a
+# "datatype mismatch" error occurs and the statement is aborted.
+#
+do_execsql_test 5.10.0 { DELETE FROM t12 }
+do_createtable_tests 5.10.1 -error { 
+  datatype mismatch
+} {
+  1   "INSERT INTO t12(x) VALUES(4.1)"     {}
+  2   "INSERT INTO t12(x) VALUES('hello')" {}
+  3   "INSERT INTO t12(x) VALUES(X'ABCD')" {}
+  4   "INSERT INTO t12(x) VALUES(X'3900')" {}
+  5   "INSERT INTO t12(x) VALUES(X'39')"   {}
+}
+do_createtable_tests 5.10.2 -query { 
+  SELECT typeof(x), x FROM t12 
+} -repair {
+  execsql { DELETE FROM t12 }
+} {
+  1   "INSERT INTO t12(x) VALUES(4)"       {integer 4}
+  2   "INSERT INTO t12(x) VALUES(10.0)"    {integer 10}
+  3   "INSERT INTO t12(x) VALUES('12.0')"  {integer 12}
+  4   "INSERT INTO t12(x) VALUES('4e3')"   {integer 4000}
+  5   "INSERT INTO t12(x) VALUES('-14.0')" {integer -14}
+}
+
+# EVIDENCE-OF: R-07986-46024 If an INSERT statement attempts to insert a
+# NULL value into a rowid or integer primary key column, the system
+# chooses an integer value to use as the rowid automatically.
+#
+do_execsql_test 5.11.0 { DELETE FROM t12 }
+do_createtable_tests 5.11 -query { 
+  SELECT typeof(x), x FROM t12 WHERE y IS (SELECT max(y) FROM t12)
+} {
+  1   "INSERT INTO t12 DEFAULT VALUES"                {integer 1}
+  2   "INSERT INTO t12(y)   VALUES(5)"                {integer 2}
+  3   "INSERT INTO t12(x,y) VALUES(NULL, 10)"         {integer 3}
+  4   "INSERT INTO t12(x,y) SELECT NULL, 15 FROM t12" 
+      {integer 4 integer 5 integer 6}
+  5   "INSERT INTO t12(y) SELECT 20 FROM t12 LIMIT 3"
+      {integer 7 integer 8 integer 9}
+}
+
+finish_test
diff --git a/test/e_delete.test b/test/e_delete.test
new file mode 100644
index 0000000000000000000000000000000000000000..9bd93229e2c9e08b1f46aa58e1492f09e92e372f
--- /dev/null
+++ b/test/e_delete.test
@@ -0,0 +1,477 @@
+# 2010 September 21
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements tests to verify that the "testable statements" in 
+# the lang_delete.html document are correct.
+#
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !compound {
+  finish_test
+  return
+}
+
+proc do_delete_tests {args} {
+  uplevel do_select_tests $args
+}
+
+do_execsql_test e_delete-0.0 {
+  CREATE TABLE t1(a, b);
+  CREATE INDEX i1 ON t1(a);
+} {}
+
+# -- syntax diagram delete-stmt
+# -- syntax diagram qualified-table-name
+#
+do_delete_tests e_delete-0.1 {
+  1  "DELETE FROM t1"                              {}
+  2  "DELETE FROM t1 INDEXED BY i1"                {}
+  3  "DELETE FROM t1 NOT INDEXED"                  {}
+  4  "DELETE FROM main.t1"                         {}
+  5  "DELETE FROM main.t1 INDEXED BY i1"           {}
+  6  "DELETE FROM main.t1 NOT INDEXED"             {}
+  7  "DELETE FROM t1 WHERE a>2"                    {}
+  8  "DELETE FROM t1 INDEXED BY i1 WHERE a>2"      {}
+  9  "DELETE FROM t1 NOT INDEXED WHERE a>2"        {}
+  10 "DELETE FROM main.t1 WHERE a>2"               {}
+  11 "DELETE FROM main.t1 INDEXED BY i1 WHERE a>2" {}
+  12 "DELETE FROM main.t1 NOT INDEXED WHERE a>2"   {}
+}
+
+# EVIDENCE-OF: R-20205-17349 If the WHERE clause is not present, all
+# records in the table are deleted.
+#
+drop_all_tables
+do_test e_delete-1.0 {
+  db transaction {
+    foreach t {t1 t2 t3 t4 t5 t6} {
+      execsql [string map [list %T% $t] {
+        CREATE TABLE %T%(x, y);
+        INSERT INTO %T% VALUES(1, 'one');
+        INSERT INTO %T% VALUES(2, 'two');
+        INSERT INTO %T% VALUES(3, 'three');
+        INSERT INTO %T% VALUES(4, 'four');
+        INSERT INTO %T% VALUES(5, 'five');
+      }]
+    }
+  }
+} {}
+do_delete_tests e_delete-1.1 {
+  1  "DELETE FROM t1       ; SELECT * FROM t1"       {}
+  2  "DELETE FROM main.t2  ; SELECT * FROM t2"       {}
+}
+
+# EVIDENCE-OF: R-26300-50198 If a WHERE clause is supplied, then only
+# those rows for which the WHERE clause boolean expression is true are
+# deleted.
+#
+# EVIDENCE-OF: R-23360-48280 Rows for which the expression is false or
+# NULL are retained.
+#
+do_delete_tests e_delete-1.2 {
+  1  "DELETE FROM t3 WHERE 1       ; SELECT x FROM t3"       {}
+  2  "DELETE FROM main.t4 WHERE 0  ; SELECT x FROM t4"       {1 2 3 4 5}
+  3  "DELETE FROM t4 WHERE 0.0     ; SELECT x FROM t4"       {1 2 3 4 5}
+  4  "DELETE FROM t4 WHERE NULL    ; SELECT x FROM t4"       {1 2 3 4 5}
+  5  "DELETE FROM t4 WHERE y!='two'; SELECT x FROM t4"       {2}
+  6  "DELETE FROM t4 WHERE y='two' ; SELECT x FROM t4"       {}
+  7  "DELETE FROM t5 WHERE x=(SELECT max(x) FROM t5);SELECT x FROM t5" {1 2 3 4}
+  8  "DELETE FROM t5 WHERE (SELECT max(x) FROM t4)  ;SELECT x FROM t5" {1 2 3 4}
+  9  "DELETE FROM t5 WHERE (SELECT max(x) FROM t6)  ;SELECT x FROM t5" {}
+  10 "DELETE FROM t6 WHERE y>'seven' ; SELECT y FROM t6"     {one four five}
+}
+
+
+#-------------------------------------------------------------------------
+# Tests for restrictions on DELETE statements that appear within trigger
+# programs.
+#
+forcedelete test.db2
+forcedelete test.db3
+do_execsql_test e_delete-2.0 {
+  ATTACH 'test.db2' AS aux;
+  ATTACH 'test.db3' AS aux2;
+
+  CREATE TABLE temp.t7(a, b);   INSERT INTO temp.t7 VALUES(1, 2);
+  CREATE TABLE main.t7(a, b);   INSERT INTO main.t7 VALUES(3, 4);
+  CREATE TABLE aux.t7(a, b);    INSERT INTO aux.t7 VALUES(5, 6);
+  CREATE TABLE aux2.t7(a, b);   INSERT INTO aux2.t7 VALUES(7, 8);
+
+  CREATE TABLE main.t8(a, b);   INSERT INTO main.t8 VALUES(1, 2);
+  CREATE TABLE aux.t8(a, b);    INSERT INTO aux.t8 VALUES(3, 4);
+  CREATE TABLE aux2.t8(a, b);   INSERT INTO aux2.t8 VALUES(5, 6);
+
+  CREATE TABLE aux.t9(a, b);    INSERT INTO aux.t9 VALUES(1, 2);
+  CREATE TABLE aux2.t9(a, b);   INSERT INTO aux2.t9 VALUES(3, 4);
+
+  CREATE TABLE aux2.t10(a, b);  INSERT INTO aux2.t10 VALUES(1, 2);
+} {}
+
+
+# EVIDENCE-OF: R-09681-58560 The table-name specified as part of a
+# DELETE statement within a trigger body must be unqualified.
+#
+# EVIDENCE-OF: R-12275-20298 In other words, the schema-name. prefix on
+# the table name is not allowed within triggers.
+#
+do_delete_tests e_delete-2.1 -error {
+  qualified table names are not allowed on INSERT, UPDATE, and DELETE statements within triggers
+} {
+  1 {
+      CREATE TRIGGER tr1 AFTER INSERT ON t1 BEGIN
+        DELETE FROM main.t2;
+      END;
+  } {}
+
+  2 {
+      CREATE TRIGGER tr1 BEFORE UPDATE ON t2 BEGIN
+        DELETE FROM temp.t7 WHERE a=new.a;
+      END;
+  } {}
+
+  3 {
+      CREATE TRIGGER tr1 AFTER UPDATE ON t8 BEGIN
+        DELETE FROM aux2.t8 WHERE b!=a;
+      END;
+  } {}
+}
+
+# EVIDENCE-OF: R-28818-63526 If the table to which the trigger is
+# attached is not in the temp database, then DELETE statements within
+# the trigger body must operate on tables within the same database as
+# it.
+# 
+#   This is tested in two parts. First, check that if a table of the
+#   specified name does not exist, an error is raised. Secondly, test
+#   that if tables with the specified name exist in multiple databases,
+#   the local database table is used.
+#
+do_delete_tests e_delete-2.2.1 -error { no such table: %s } {
+  1 {
+      CREATE TRIGGER main.tr1 AFTER INSERT ON main.t7 BEGIN
+        DELETE FROM t9;
+      END;
+      INSERT INTO main.t7 VALUES(1, 2);
+  } {main.t9}
+
+  2 {
+      CREATE TRIGGER aux.tr2 BEFORE UPDATE ON t9 BEGIN
+        DELETE FROM t10;
+      END;
+      UPDATE t9 SET a=1;
+  } {aux.t10}
+}
+do_execsql_test e_delete-2.2.X {
+  DROP TRIGGER main.tr1;
+  DROP TRIGGER aux.tr2;
+} {}
+
+do_delete_tests e_delete-2.2.2 {
+  1 {
+      CREATE TRIGGER aux.tr1 AFTER INSERT ON t8 BEGIN
+        DELETE FROM t9;
+      END;
+      INSERT INTO aux.t8 VALUES(1, 2);
+
+      SELECT count(*) FROM aux.t9 
+        UNION ALL
+      SELECT count(*) FROM aux2.t9;
+  } {0 1}
+
+  2 {
+      CREATE TRIGGER main.tr1 AFTER INSERT ON t8 BEGIN
+        DELETE FROM t7;
+      END;
+      INSERT INTO main.t8 VALUES(1, 2);
+
+      SELECT count(*) FROM temp.t7 
+        UNION ALL
+      SELECT count(*) FROM main.t7
+        UNION ALL
+      SELECT count(*) FROM aux.t7
+        UNION ALL
+      SELECT count(*) FROM aux2.t7;
+  } {1 0 1 1}
+}
+
+# EVIDENCE-OF: R-31567-38587 If the table to which the trigger is
+# attached is in the TEMP database, then the unqualified name of the
+# table being deleted is resolved in the same way as it is for a
+# top-level statement (by searching first the TEMP database, then the
+# main database, then any other databases in the order they were
+# attached).
+#
+do_execsql_test e_delete-2.3.0 {
+  DROP TRIGGER aux.tr1;
+  DROP TRIGGER main.tr1;
+  DELETE FROM main.t8 WHERE oid>1;
+  DELETE FROM aux.t8 WHERE oid>1;
+  INSERT INTO aux.t9 VALUES(1, 2);
+  INSERT INTO main.t7 VALUES(3, 4);
+} {}
+do_execsql_test e_delete-2.3.1 {
+  SELECT count(*) FROM temp.t7 UNION ALL SELECT count(*) FROM main.t7 UNION ALL
+  SELECT count(*) FROM aux.t7  UNION ALL SELECT count(*) FROM aux2.t7;
+
+  SELECT count(*) FROM main.t8 UNION ALL SELECT count(*) FROM aux.t8  
+  UNION ALL SELECT count(*) FROM aux2.t8;
+
+  SELECT count(*) FROM aux.t9  UNION ALL SELECT count(*) FROM aux2.t9;
+
+  SELECT count(*) FROM aux2.t10;
+} {1 1 1 1 1 1 1 1 1 1}
+do_execsql_test e_delete-2.3.2 {
+  CREATE TRIGGER temp.tr1 AFTER INSERT ON t7 BEGIN
+    DELETE FROM t7;
+    DELETE FROM t8;
+    DELETE FROM t9;
+    DELETE FROM t10;
+  END;
+  INSERT INTO temp.t7 VALUES('hello', 'world');
+} {}
+do_execsql_test e_delete-2.3.3 {
+  SELECT count(*) FROM temp.t7 UNION ALL SELECT count(*) FROM main.t7 UNION ALL
+  SELECT count(*) FROM aux.t7  UNION ALL SELECT count(*) FROM aux2.t7;
+
+  SELECT count(*) FROM main.t8 UNION ALL SELECT count(*) FROM aux.t8  
+  UNION ALL SELECT count(*) FROM aux2.t8;
+
+  SELECT count(*) FROM aux.t9  UNION ALL SELECT count(*) FROM aux2.t9;
+
+  SELECT count(*) FROM aux2.t10;
+} {0 1 1 1 0 1 1 0 1 0}
+
+# EVIDENCE-OF: R-28691-49464 The INDEXED BY and NOT INDEXED clauses are
+# not allowed on DELETE statements within triggers.
+#
+do_execsql_test e_delete-2.4.0 {
+  CREATE INDEX i8 ON t8(a, b);
+} {}
+do_delete_tests e_delete-2.4 -error {
+  the %s %s clause is not allowed on UPDATE or DELETE statements within triggers
+} {
+  1 {
+    CREATE TRIGGER tr3 AFTER INSERT ON t8 BEGIN
+      DELETE FROM t8 INDEXED BY i8 WHERE a=5;
+    END;
+  } {INDEXED BY}
+  2 {
+    CREATE TRIGGER tr3 AFTER INSERT ON t8 BEGIN
+      DELETE FROM t8 NOT INDEXED WHERE a=5;
+    END;
+  } {NOT INDEXED}
+}
+
+ifcapable update_delete_limit {
+
+# EVIDENCE-OF: R-64942-06615 The LIMIT and ORDER BY clauses (described
+# below) are unsupported for DELETE statements within triggers.
+#
+do_delete_tests e_delete-2.5 -error { near "%s": syntax error } {
+  1 {
+    CREATE TRIGGER tr3 AFTER INSERT ON t8 BEGIN
+      DELETE FROM t8 LIMIT 10;
+    END;
+  } {LIMIT}
+  2 {
+    CREATE TRIGGER tr3 AFTER INSERT ON t8 BEGIN
+      DELETE FROM t8 ORDER BY a LIMIT 5;
+    END;
+  } {ORDER}
+}
+
+# EVIDENCE-OF: R-40026-10531 If SQLite is compiled with the
+# SQLITE_ENABLE_UPDATE_DELETE_LIMIT compile-time option, then the syntax
+# of the DELETE statement is extended by the addition of optional ORDER
+# BY and LIMIT clauses:
+#
+# -- syntax diagram delete-stmt-limited
+#
+do_delete_tests e_delete-3.1 {
+  1   "DELETE FROM t1 LIMIT 5"                                    {}
+  2   "DELETE FROM t1 LIMIT 5-1 OFFSET 2+2"                       {}
+  3   "DELETE FROM t1 LIMIT 2+2, 16/4"                            {}
+  4   "DELETE FROM t1 ORDER BY x LIMIT 5"                         {}
+  5   "DELETE FROM t1 ORDER BY x LIMIT 5-1 OFFSET 2+2"            {}
+  6   "DELETE FROM t1 ORDER BY x LIMIT 2+2, 16/4"                 {}
+  7   "DELETE FROM t1 WHERE x>2 LIMIT 5"                          {}
+  8   "DELETE FROM t1 WHERE x>2 LIMIT 5-1 OFFSET 2+2"             {}
+  9   "DELETE FROM t1 WHERE x>2 LIMIT 2+2, 16/4"                  {}
+  10  "DELETE FROM t1 WHERE x>2 ORDER BY x LIMIT 5"               {}
+  11  "DELETE FROM t1 WHERE x>2 ORDER BY x LIMIT 5-1 OFFSET 2+2"  {}
+  12  "DELETE FROM t1 WHERE x>2 ORDER BY x LIMIT 2+2, 16/4"       {}
+}
+
+drop_all_tables
+proc rebuild_t1 {} {
+  catchsql { DROP TABLE t1 }
+  execsql {
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, 'one');
+    INSERT INTO t1 VALUES(2, 'two');
+    INSERT INTO t1 VALUES(3, 'three');
+    INSERT INTO t1 VALUES(4, 'four');
+    INSERT INTO t1 VALUES(5, 'five');
+  }
+}
+
+# EVIDENCE-OF: R-44062-08550 If a DELETE statement has a LIMIT clause,
+# the maximum number of rows that will be deleted is found by evaluating
+# the accompanying expression and casting it to an integer value.
+#
+rebuild_t1
+do_delete_tests e_delete-3.2 -repair rebuild_t1 -query {
+  SELECT a FROM t1
+} {
+  1   "DELETE FROM t1 LIMIT 3"       {4 5}
+  2   "DELETE FROM t1 LIMIT 1+1"     {3 4 5}
+  3   "DELETE FROM t1 LIMIT '4'"     {5}
+  4   "DELETE FROM t1 LIMIT '1.0'"   {2 3 4 5}
+}
+
+# EVIDENCE-OF: R-02661-56399 If the result of the evaluating the LIMIT
+# clause cannot be losslessly converted to an integer value, it is an
+# error.
+#
+do_delete_tests e_delete-3.3 -error { datatype mismatch } {
+  1   "DELETE FROM t1 LIMIT 'abc'"   {}
+  2   "DELETE FROM t1 LIMIT NULL"    {}
+  3   "DELETE FROM t1 LIMIT X'ABCD'" {}
+  4   "DELETE FROM t1 LIMIT 1.2"     {}
+}
+
+# EVIDENCE-OF: R-00598-03741 A negative LIMIT value is interpreted as
+# "no limit".
+#
+do_delete_tests e_delete-3.4 -repair rebuild_t1 -query {
+  SELECT a FROM t1
+} {
+  1   "DELETE FROM t1 LIMIT -1"       {}
+  2   "DELETE FROM t1 LIMIT 2-4"      {}
+  3   "DELETE FROM t1 LIMIT -4.0"     {}
+  4   "DELETE FROM t1 LIMIT 5*-1"     {}
+}
+
+# EVIDENCE-OF: R-26377-49195 If the DELETE statement also has an OFFSET
+# clause, then it is similarly evaluated and cast to an integer value.
+# Again, it is an error if the value cannot be losslessly converted to
+# an integer.
+#
+do_delete_tests e_delete-3.5 -error { datatype mismatch } {
+  1   "DELETE FROM t1 LIMIT 1 OFFSET 'abc'"   {}
+  2   "DELETE FROM t1 LIMIT 1 OFFSET NULL"    {}
+  3   "DELETE FROM t1 LIMIT 1 OFFSET X'ABCD'" {}
+  4   "DELETE FROM t1 LIMIT 1 OFFSET 1.2"     {}
+  5   "DELETE FROM t1 LIMIT 'abc', 1"         {}
+  6   "DELETE FROM t1 LIMIT NULL, 1"          {}
+  7   "DELETE FROM t1 LIMIT X'ABCD', 1"       {}
+  8   "DELETE FROM t1 LIMIT 1.2, 1"           {}
+}
+
+
+# EVIDENCE-OF: R-64004-53814 If there is no OFFSET clause, or the
+# calculated integer value is negative, the effective OFFSET value is
+# zero.
+#
+do_delete_tests e_delete-3.6 -repair rebuild_t1 -query {
+  SELECT a FROM t1
+} {
+  1a  "DELETE FROM t1 LIMIT 3 OFFSET 0"        {4 5}
+  1b  "DELETE FROM t1 LIMIT 3"                 {4 5}
+  1c  "DELETE FROM t1 LIMIT 3 OFFSET -1"       {4 5}
+  2a  "DELETE FROM t1 LIMIT 1+1 OFFSET 0"      {3 4 5}
+  2b  "DELETE FROM t1 LIMIT 1+1"               {3 4 5}
+  2c  "DELETE FROM t1 LIMIT 1+1 OFFSET 2-5"    {3 4 5}
+  3a  "DELETE FROM t1 LIMIT '4' OFFSET 0"      {5}
+  3b  "DELETE FROM t1 LIMIT '4'"               {5}
+  3c  "DELETE FROM t1 LIMIT '4' OFFSET -1.0"   {5}
+  4a  "DELETE FROM t1 LIMIT '1.0' OFFSET 0"    {2 3 4 5}
+  4b  "DELETE FROM t1 LIMIT '1.0'"             {2 3 4 5}
+  4c  "DELETE FROM t1 LIMIT '1.0' OFFSET -11"  {2 3 4 5}
+}
+
+# EVIDENCE-OF: R-48141-52334 If the DELETE statement has an ORDER BY
+# clause, then all rows that would be deleted in the absence of the
+# LIMIT clause are sorted according to the ORDER BY. The first M rows,
+# where M is the value found by evaluating the OFFSET clause expression,
+# are skipped, and the following N, where N is the value of the LIMIT
+# expression, are deleted.
+#
+do_delete_tests e_delete-3.7 -repair rebuild_t1 -query {
+  SELECT a FROM t1
+} {
+  1   "DELETE FROM t1 ORDER BY b LIMIT 2"               {1 2 3}
+  2   "DELETE FROM t1 ORDER BY length(b), a LIMIT 3"    {3 5}
+  3   "DELETE FROM t1 ORDER BY a DESC LIMIT 1 OFFSET 0"  {1 2 3 4}
+  4   "DELETE FROM t1 ORDER BY a DESC LIMIT 1 OFFSET 1"  {1 2 3 5}
+  5   "DELETE FROM t1 ORDER BY a DESC LIMIT 1 OFFSET 2"  {1 2 4 5}
+}
+
+# EVIDENCE-OF: R-64535-08414 If there are less than N rows remaining
+# after taking the OFFSET clause into account, or if the LIMIT clause
+# evaluated to a negative value, then all remaining rows are deleted.
+#
+do_delete_tests e_delete-3.8 -repair rebuild_t1 -query {
+  SELECT a FROM t1
+} {
+  1   "DELETE FROM t1 ORDER BY a ASC LIMIT 10"           {}
+  2   "DELETE FROM t1 ORDER BY a ASC LIMIT -1"           {}
+  3   "DELETE FROM t1 ORDER BY a ASC LIMIT 4 OFFSET 2"   {1 2}
+}
+
+# EVIDENCE-OF: R-37284-06965 If the DELETE statement has no ORDER BY
+# clause, then all rows that would be deleted in the absence of the
+# LIMIT clause are assembled in an arbitrary order before applying the
+# LIMIT and OFFSET clauses to determine the subset that are actually
+# deleted.
+#
+#     In practice, the "arbitrary order" is rowid order.
+#
+do_delete_tests e_delete-3.9 -repair rebuild_t1 -query {
+  SELECT a FROM t1
+} {
+  1   "DELETE FROM t1 LIMIT 2"               {3 4 5}
+  2   "DELETE FROM t1 LIMIT 3"               {4 5}
+  3   "DELETE FROM t1 LIMIT 1 OFFSET 0"      {2 3 4 5}
+  4   "DELETE FROM t1 LIMIT 1 OFFSET 1"      {1 3 4 5}
+  5   "DELETE FROM t1 LIMIT 1 OFFSET 2"      {1 2 4 5}
+}
+
+
+# EVIDENCE-OF: R-07548-13422 The ORDER BY clause on a DELETE statement
+# is used only to determine which rows fall within the LIMIT. The order
+# in which rows are deleted is arbitrary and is not influenced by the
+# ORDER BY clause.
+#
+#     In practice, rows are always deleted in rowid order.
+#
+do_delete_tests e_delete-3.10 -repair {
+  rebuild_t1 
+  catchsql { DROP TABLE t1log }
+  execsql {
+    CREATE TABLE t1log(x);
+    CREATE TRIGGER tr1 AFTER DELETE ON t1 BEGIN
+      INSERT INTO t1log VALUES(old.a);
+    END;
+  }
+} -query {
+  SELECT x FROM t1log
+} {
+  1   "DELETE FROM t1 ORDER BY a DESC LIMIT 2"   {4 5}
+  2   "DELETE FROM t1 ORDER BY a DESC LIMIT -1"  {1 2 3 4 5}
+  3   "DELETE FROM t1 ORDER BY a ASC LIMIT 2"    {1 2}
+  4   "DELETE FROM t1 ORDER BY a ASC LIMIT -1"   {1 2 3 4 5}
+}
+
+}
+ 
+finish_test
diff --git a/test/e_droptrigger.test b/test/e_droptrigger.test
new file mode 100644
index 0000000000000000000000000000000000000000..5cd5d0a07bafa67a17cbba54babbe8879859603f
--- /dev/null
+++ b/test/e_droptrigger.test
@@ -0,0 +1,218 @@
+# 2010 November 29
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements tests to verify that the "testable statements" in 
+# the lang_droptrigger.html document are correct.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix e_droptrigger
+
+ifcapable !trigger { finish_test ; return }
+
+proc do_droptrigger_tests {nm args} {
+  uplevel do_select_tests [list e_createtable-$nm] $args
+}
+
+proc list_all_triggers {{db db}} {
+  set res [list]
+  $db eval { PRAGMA database_list } {
+    if {$name == "temp"} {
+      set tbl sqlite_temp_master
+    } else {
+      set tbl "$name.sqlite_master"
+    }
+    lappend res {*}[
+      db eval "SELECT '$name.' || name FROM $tbl WHERE type = 'trigger'"
+    ]
+  }
+  set res
+}
+
+
+proc droptrigger_reopen_db {{event INSERT}} {
+  db close
+  forcedelete test.db test.db2
+  sqlite3 db test.db
+
+  set ::triggers_fired [list]
+  proc r {x} { lappend ::triggers_fired $x }
+  db func r r
+
+  db eval "
+    ATTACH 'test.db2' AS aux;
+
+    CREATE TEMP TABLE t1(a, b);
+    INSERT INTO t1 VALUES('a', 'b');
+    CREATE TRIGGER tr1 AFTER $event ON t1 BEGIN SELECT r('temp.tr1') ; END;
+
+    CREATE TABLE t2(a, b);
+    INSERT INTO t2 VALUES('a', 'b');
+    CREATE TRIGGER tr1 BEFORE $event ON t2 BEGIN SELECT r('main.tr1') ; END;
+    CREATE TRIGGER tr2 AFTER  $event ON t2 BEGIN SELECT r('main.tr2') ; END;
+
+    CREATE TABLE aux.t3(a, b);
+    INSERT INTO t3 VALUES('a', 'b');
+    CREATE TRIGGER aux.tr1 BEFORE $event ON t3 BEGIN SELECT r('aux.tr1') ; END;
+    CREATE TRIGGER aux.tr2 AFTER  $event ON t3 BEGIN SELECT r('aux.tr2') ; END;
+    CREATE TRIGGER aux.tr3 AFTER  $event ON t3 BEGIN SELECT r('aux.tr3') ; END;
+  "
+}
+
+
+# -- syntax diagram drop-trigger-stmt
+#
+do_droptrigger_tests 1.1 -repair {
+  droptrigger_reopen_db
+} -tclquery {
+  list_all_triggers 
+} {
+  1   "DROP TRIGGER main.tr1"            
+      {main.tr2 temp.tr1 aux.tr1 aux.tr2 aux.tr3}
+  2   "DROP TRIGGER IF EXISTS main.tr1"  
+      {main.tr2 temp.tr1 aux.tr1 aux.tr2 aux.tr3}
+  3   "DROP TRIGGER tr1"                 
+      {main.tr1 main.tr2 aux.tr1 aux.tr2 aux.tr3}
+  4   "DROP TRIGGER IF EXISTS tr1"       
+      {main.tr1 main.tr2 aux.tr1 aux.tr2 aux.tr3}
+
+  5   "DROP TRIGGER aux.tr1"             
+      {main.tr1 main.tr2 temp.tr1 aux.tr2 aux.tr3}
+  6   "DROP TRIGGER IF EXISTS aux.tr1"   
+      {main.tr1 main.tr2 temp.tr1 aux.tr2 aux.tr3}
+
+  7   "DROP TRIGGER IF EXISTS aux.xxx"   
+      {main.tr1 main.tr2 temp.tr1 aux.tr1 aux.tr2 aux.tr3}
+  8   "DROP TRIGGER IF EXISTS aux.xxx"   
+      {main.tr1 main.tr2 temp.tr1 aux.tr1 aux.tr2 aux.tr3}
+}
+
+# EVIDENCE-OF: R-61172-15671 The DROP TRIGGER statement removes a
+# trigger created by the CREATE TRIGGER statement.
+#
+foreach {tn tbl droptrigger before after} {
+  1   t1  "DROP TRIGGER tr1" {temp.tr1}                {}
+  2   t2  "DROP TRIGGER tr1" {main.tr1 main.tr2}       {main.tr1 main.tr2}
+  3   t3  "DROP TRIGGER tr1" {aux.tr1 aux.tr3 aux.tr2} {aux.tr1 aux.tr3 aux.tr2}
+
+  4   t1  "DROP TRIGGER tr2" {temp.tr1}                {temp.tr1}
+  5   t2  "DROP TRIGGER tr2" {main.tr1 main.tr2}       {main.tr1}
+  6   t3  "DROP TRIGGER tr2" {aux.tr1 aux.tr3 aux.tr2} {aux.tr1 aux.tr3 aux.tr2}
+
+  7   t1  "DROP TRIGGER tr3" {temp.tr1}                {temp.tr1}
+  8   t2  "DROP TRIGGER tr3" {main.tr1 main.tr2}       {main.tr1 main.tr2}
+  9   t3  "DROP TRIGGER tr3" {aux.tr1 aux.tr3 aux.tr2} {aux.tr1 aux.tr2}
+} {
+
+  do_test 2.$tn.1 {
+    droptrigger_reopen_db
+    execsql " INSERT INTO $tbl VALUES('1', '2') "
+    set ::triggers_fired
+  } $before
+
+  do_test 2.$tn.2 {
+    droptrigger_reopen_db
+    execsql $droptrigger
+    execsql " INSERT INTO $tbl VALUES('1', '2') "
+    set ::triggers_fired
+  } $after
+}
+
+# EVIDENCE-OF: R-04950-25529 Once removed, the trigger definition is no
+# longer present in the sqlite_schema (or sqlite_temp_schema) table and
+# is not fired by any subsequent INSERT, UPDATE or DELETE statements.
+#
+#   Test cases e_droptrigger-1.* test the first part of this statement
+#   (that dropped triggers do not appear in the schema table), and tests
+#   droptrigger-2.* test that dropped triggers are not fired by INSERT
+#   statements. The following tests verify that they are not fired by
+#   UPDATE or DELETE statements.
+#
+foreach {tn tbl droptrigger before after} {
+  1   t1  "DROP TRIGGER tr1" {temp.tr1}                {}
+  2   t2  "DROP TRIGGER tr1" {main.tr1 main.tr2}       {main.tr1 main.tr2}
+  3   t3  "DROP TRIGGER tr1" {aux.tr1 aux.tr3 aux.tr2} {aux.tr1 aux.tr3 aux.tr2}
+
+  4   t1  "DROP TRIGGER tr2" {temp.tr1}                {temp.tr1}
+  5   t2  "DROP TRIGGER tr2" {main.tr1 main.tr2}       {main.tr1}
+  6   t3  "DROP TRIGGER tr2" {aux.tr1 aux.tr3 aux.tr2} {aux.tr1 aux.tr3 aux.tr2}
+
+  7   t1  "DROP TRIGGER tr3" {temp.tr1}                {temp.tr1}
+  8   t2  "DROP TRIGGER tr3" {main.tr1 main.tr2}       {main.tr1 main.tr2}
+  9   t3  "DROP TRIGGER tr3" {aux.tr1 aux.tr3 aux.tr2} {aux.tr1 aux.tr2}
+} {
+
+  do_test 3.1.$tn.1 {
+    droptrigger_reopen_db UPDATE
+    execsql "UPDATE $tbl SET a = 'abc'"
+    set ::triggers_fired
+  } $before
+
+  do_test 3.1.$tn.2 {
+    droptrigger_reopen_db UPDATE
+    execsql $droptrigger
+    execsql "UPDATE $tbl SET a = 'abc'"
+    set ::triggers_fired
+  } $after
+}
+foreach {tn tbl droptrigger before after} {
+  1   t1  "DROP TRIGGER tr1" {temp.tr1}                {}
+  2   t2  "DROP TRIGGER tr1" {main.tr1 main.tr2}       {main.tr1 main.tr2}
+  3   t3  "DROP TRIGGER tr1" {aux.tr1 aux.tr3 aux.tr2} {aux.tr1 aux.tr3 aux.tr2}
+
+  4   t1  "DROP TRIGGER tr2" {temp.tr1}                {temp.tr1}
+  5   t2  "DROP TRIGGER tr2" {main.tr1 main.tr2}       {main.tr1}
+  6   t3  "DROP TRIGGER tr2" {aux.tr1 aux.tr3 aux.tr2} {aux.tr1 aux.tr3 aux.tr2}
+
+  7   t1  "DROP TRIGGER tr3" {temp.tr1}                {temp.tr1}
+  8   t2  "DROP TRIGGER tr3" {main.tr1 main.tr2}       {main.tr1 main.tr2}
+  9   t3  "DROP TRIGGER tr3" {aux.tr1 aux.tr3 aux.tr2} {aux.tr1 aux.tr2}
+} {
+
+  do_test 3.2.$tn.1 {
+    droptrigger_reopen_db DELETE
+    execsql "DELETE FROM $tbl"
+    set ::triggers_fired
+  } $before
+
+  do_test 3.2.$tn.2 {
+    droptrigger_reopen_db DELETE
+    execsql $droptrigger
+    execsql "DELETE FROM $tbl"
+    set ::triggers_fired
+  } $after
+}
+
+# EVIDENCE-OF: R-37808-62273 Note that triggers are automatically
+# dropped when the associated table is dropped.
+#
+do_test 4.1 {
+  droptrigger_reopen_db
+  list_all_triggers
+} {main.tr1 main.tr2 temp.tr1 aux.tr1 aux.tr2 aux.tr3}
+do_test 4.2 {
+  droptrigger_reopen_db
+  execsql "DROP TABLE t1"
+  list_all_triggers
+} {main.tr1 main.tr2 aux.tr1 aux.tr2 aux.tr3}
+do_test 4.3 {
+  droptrigger_reopen_db
+  execsql "DROP TABLE t1"
+  list_all_triggers
+} {main.tr1 main.tr2 aux.tr1 aux.tr2 aux.tr3}
+do_test 4.4 {
+  droptrigger_reopen_db
+  execsql "DROP TABLE t1"
+  list_all_triggers
+} {main.tr1 main.tr2 aux.tr1 aux.tr2 aux.tr3}
+
+finish_test
diff --git a/test/e_dropview.test b/test/e_dropview.test
new file mode 100644
index 0000000000000000000000000000000000000000..00f59ddc4f853323f8047cc7d67cd7540c11db11
--- /dev/null
+++ b/test/e_dropview.test
@@ -0,0 +1,192 @@
+# 2010 November 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements tests to verify that the "testable statements" in 
+# the lang_dropview.html document are correct.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix e_dropview
+
+proc dropview_reopen_db {} {
+  db close
+  forcedelete test.db test.db2
+  sqlite3 db test.db
+
+  db eval {
+    ATTACH 'test.db2' AS aux;
+    CREATE TABLE t1(a, b); 
+    INSERT INTO t1 VALUES('a main', 'b main');
+    CREATE VIEW v1 AS SELECT * FROM t1;
+    CREATE VIEW v2 AS SELECT * FROM t1;
+
+    CREATE TEMP TABLE t1(a, b);
+    INSERT INTO temp.t1 VALUES('a temp', 'b temp');
+    CREATE VIEW temp.v1 AS SELECT * FROM t1;
+
+    CREATE TABLE aux.t1(a, b);
+    INSERT INTO aux.t1 VALUES('a aux', 'b aux');
+    CREATE VIEW aux.v1 AS SELECT * FROM t1;
+    CREATE VIEW aux.v2 AS SELECT * FROM t1;
+    CREATE VIEW aux.v3 AS SELECT * FROM t1;
+  }
+}
+
+proc list_all_views {{db db}} {
+  set res [list]
+  $db eval { PRAGMA database_list } {
+    set tbl "$name.sqlite_master"
+    if {$name == "temp"} { set tbl temp.sqlite_master }
+
+    set sql "SELECT '$name.' || name FROM $tbl WHERE type = 'view'"
+    lappend res {*}[$db eval $sql]
+  }
+  set res
+}
+
+proc list_all_data {{db db}} {
+  set res [list]
+  $db eval { PRAGMA database_list } {
+    set tbl "$name.sqlite_master"
+    if {$name == "temp"} { set tbl sqlite_temp_master }
+
+    db eval "SELECT '$name.' || name AS x FROM $tbl WHERE type = 'table'" {
+      lappend res [list $x [db eval "SELECT * FROM $x"]]
+    }
+  }
+  set res
+}
+
+proc do_dropview_tests {nm args} {
+  uplevel do_select_tests $nm $args
+}
+
+# -- syntax diagram drop-view-stmt
+#
+# All paths in the syntax diagram for DROP VIEW are tested by tests 1.*.
+#
+do_dropview_tests 1 -repair {
+  dropview_reopen_db
+} -tclquery {
+  list_all_views
+} {
+  1   "DROP VIEW v1"                  {main.v1 main.v2 aux.v1 aux.v2 aux.v3}
+  2   "DROP VIEW v2"                  {main.v1 temp.v1 aux.v1 aux.v2 aux.v3}
+  3   "DROP VIEW main.v1"             {main.v2 temp.v1 aux.v1 aux.v2 aux.v3}
+  4   "DROP VIEW main.v2"             {main.v1 temp.v1 aux.v1 aux.v2 aux.v3}
+  5   "DROP VIEW IF EXISTS v1"        {main.v1 main.v2 aux.v1 aux.v2 aux.v3}
+  6   "DROP VIEW IF EXISTS v2"        {main.v1 temp.v1 aux.v1 aux.v2 aux.v3}
+  7   "DROP VIEW IF EXISTS main.v1"   {main.v2 temp.v1 aux.v1 aux.v2 aux.v3}
+  8   "DROP VIEW IF EXISTS main.v2"   {main.v1 temp.v1 aux.v1 aux.v2 aux.v3}
+}
+
+# EVIDENCE-OF: R-27002-52307 The DROP VIEW statement removes a view
+# created by the CREATE VIEW statement.
+#
+dropview_reopen_db
+do_execsql_test 2.1 {
+  CREATE VIEW "new view" AS SELECT * FROM t1 AS x, t1 AS y;
+  SELECT * FROM "new view";
+} {{a main} {b main} {a main} {b main}}
+do_execsql_test 2.2 {;
+  SELECT * FROM sqlite_master WHERE name = 'new view';
+} {
+  view {new view} {new view} 0 
+  {CREATE VIEW "new view" AS SELECT * FROM t1 AS x, t1 AS y}
+}
+do_execsql_test 2.3 {
+  DROP VIEW "new view";
+  SELECT * FROM sqlite_master WHERE name = 'new view';
+} {}
+do_catchsql_test 2.4 {
+  SELECT * FROM "new view"
+} {1 {no such table: new view}}
+
+# EVIDENCE-OF: R-00359-41639 The view definition is removed from the
+# database schema, but no actual data in the underlying base tables is
+# modified.
+#
+#     For each view in the database, check that it can be queried. Then drop
+#     it. Check that it can no longer be queried and is no longer listed
+#     in any schema table. Then check that the contents of the db tables have 
+#     not changed
+#
+set databasedata [list_all_data]
+
+do_execsql_test  3.1.0 { SELECT * FROM temp.v1 } {{a temp} {b temp}}
+do_execsql_test  3.1.1 { DROP VIEW temp.v1 } {}
+do_catchsql_test 3.1.2 { SELECT * FROM temp.v1 } {1 {no such table: temp.v1}}
+do_test          3.1.3 { list_all_views } {main.v1 main.v2 aux.v1 aux.v2 aux.v3}
+do_test          3.1.4 { string compare [list_all_data] $databasedata } 0
+
+do_execsql_test  3.2.0 { SELECT * FROM v1 } {{a main} {b main}}
+do_execsql_test  3.2.1 { DROP VIEW v1 } {}
+do_catchsql_test 3.2.2 { SELECT * FROM main.v1 } {1 {no such table: main.v1}}
+do_test          3.2.3 { list_all_views } {main.v2 aux.v1 aux.v2 aux.v3}
+do_test          3.2.4 { string compare [list_all_data] $databasedata } 0
+
+do_execsql_test  3.3.0 { SELECT * FROM v2 } {{a main} {b main}}
+do_execsql_test  3.3.1 { DROP VIEW v2 } {}
+do_catchsql_test 3.3.2 { SELECT * FROM main.v2 } {1 {no such table: main.v2}}
+do_test          3.3.3 { list_all_views } {aux.v1 aux.v2 aux.v3}
+do_test          3.3.4 { string compare [list_all_data] $databasedata } 0
+
+do_execsql_test  3.4.0 { SELECT * FROM v1 } {{a aux} {b aux}}
+do_execsql_test  3.4.1 { DROP VIEW v1 } {}
+do_catchsql_test 3.4.2 { SELECT * FROM v1 } {1 {no such table: v1}}
+do_test          3.4.3 { list_all_views } {aux.v2 aux.v3}
+do_test          3.4.4 { string compare [list_all_data] $databasedata } 0
+
+do_execsql_test  3.5.0 { SELECT * FROM aux.v2 } {{a aux} {b aux}}
+do_execsql_test  3.5.1 { DROP VIEW aux.v2 } {}
+do_catchsql_test 3.5.2 { SELECT * FROM aux.v2 } {1 {no such table: aux.v2}}
+do_test          3.5.3 { list_all_views } {aux.v3}
+do_test          3.5.4 { string compare [list_all_data] $databasedata } 0
+
+do_execsql_test  3.6.0 { SELECT * FROM v3 } {{a aux} {b aux}}
+do_execsql_test  3.6.1 { DROP VIEW v3 } {}
+do_catchsql_test 3.6.2 { SELECT * FROM v3 } {1 {no such table: v3}}
+do_test          3.6.3 { list_all_views } {}
+do_test          3.6.4 { string compare [list_all_data] $databasedata } 0
+
+# EVIDENCE-OF: R-25558-37487 If the specified view cannot be found and
+# the IF EXISTS clause is not present, it is an error.
+#
+do_dropview_tests 4 -repair {
+  dropview_reopen_db 
+} -errorformat {
+  no such view: %s
+} {
+  1   "DROP VIEW xx"                  xx
+  2   "DROP VIEW main.xx"             main.xx
+  3   "DROP VIEW temp.v2"             temp.v2
+}
+
+# EVIDENCE-OF: R-07490-32536 If the specified view cannot be found and
+# an IF EXISTS clause is present in the DROP VIEW statement, then the
+# statement is a no-op.
+#
+do_dropview_tests 5 -repair {
+  dropview_reopen_db
+} -tclquery {
+  list_all_views
+  #expr {[list_all_views] == "main.v1 main.v2 temp.v1 aux.v1 aux.v2 aux.v3"}
+} {
+  1    "DROP VIEW IF EXISTS xx" "main.v1 main.v2 temp.v1 aux.v1 aux.v2 aux.v3"
+  2    "DROP VIEW IF EXISTS main.xx" "main.v1 main.v2 temp.v1 aux.v1 aux.v2 aux.v3"
+  3    "DROP VIEW IF EXISTS temp.v2" "main.v1 main.v2 temp.v1 aux.v1 aux.v2 aux.v3"
+}
+
+
+
+
+finish_test
diff --git a/test/e_expr.test b/test/e_expr.test
new file mode 100644
index 0000000000000000000000000000000000000000..6e2b649796ddf21d3b0c47c243bdd0df0081d642
--- /dev/null
+++ b/test/e_expr.test
@@ -0,0 +1,1998 @@
+# 2010 July 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements tests to verify that the "testable statements" in 
+# the lang_expr.html document are correct.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+
+ifcapable !compound {
+  finish_test
+  return
+}
+
+proc do_expr_test {tn expr type value} {
+  uplevel do_execsql_test $tn [list "SELECT typeof($expr), $expr"] [
+    list [list $type $value]
+  ]
+}
+
+proc do_qexpr_test {tn expr value} {
+  uplevel do_execsql_test $tn [list "SELECT quote($expr)"] [list $value]
+}
+
+# Set up three global variables:
+#
+#   ::opname         An array mapping from SQL operator to an easy to parse
+#                    name. The names are used as part of test case names.
+#
+#   ::opprec         An array mapping from SQL operator to a numeric
+#                    precedence value. Operators that group more tightly
+#                    have lower numeric precedences.
+#
+#   ::oplist         A list of all SQL operators supported by SQLite.
+#
+foreach {op opn} {
+      ||   cat     *   mul       /  div       %     mod       +      add
+      -    sub     <<  lshift    >> rshift    &     bitand    |      bitor
+      <    less    <=  lesseq    >  more      >=    moreeq    =      eq1
+      ==   eq2     <>  ne1       != ne2       IS    is        LIKE   like
+      GLOB glob    AND and       OR or        MATCH match     REGEXP regexp
+      {IS NOT} isnt
+} {
+  set ::opname($op) $opn
+}
+set oplist [list]
+foreach {prec opl} {
+  1   ||
+  2   {* / %}
+  3   {+ -}
+  4   {<< >> & |}
+  5   {< <= > >=}
+  6   {= == != <> IS {IS NOT} LIKE GLOB MATCH REGEXP}
+  7   AND
+  8   OR
+} {
+  foreach op $opl { 
+    set ::opprec($op) $prec 
+    lappend oplist $op
+  }
+}
+
+
+# Hook in definitions of MATCH and REGEX. The following implementations
+# cause MATCH and REGEX to behave similarly to the == operator.
+#
+proc matchfunc {a b} { return [expr {$a==$b}] }
+proc regexfunc {a b} { return [expr {$a==$b}] }
+db func match  -argcount 2 matchfunc
+db func regexp -argcount 2 regexfunc
+
+#-------------------------------------------------------------------------
+# Test cases e_expr-1.* attempt to verify that all binary operators listed
+# in the documentation exist and that the relative precedences of the
+# operators are also as the documentation suggests.
+#
+# X-EVIDENCE-OF: R-15514-65163 SQLite understands the following binary
+# operators, in order from highest to lowest precedence: || * / % + -
+# << >> & | < <= > >= = == != <> IS IS
+# NOT IN LIKE GLOB MATCH REGEXP AND OR
+#
+# X-EVIDENCE-OF: R-38759-38789 Operators IS and IS NOT have the same
+# precedence as =.
+#
+
+unset -nocomplain untested
+foreach op1 $oplist {
+  foreach op2 $oplist {
+    set untested($op1,$op2) 1
+    foreach {tn A B C} {
+       1     22   45    66
+       2      0    0     0
+       3      0    0     1
+       4      0    1     0
+       5      0    1     1
+       6      1    0     0
+       7      1    0     1
+       8      1    1     0
+       9      1    1     1
+      10      5    6     1
+      11      1    5     6
+      12      1    5     5
+      13      5    5     1
+
+      14      5    2     1
+      15      1    4     1
+      16     -1    0     1
+      17      0    1    -1
+
+    } {
+      set testname "e_expr-1.$opname($op1).$opname($op2).$tn"
+
+      # If $op2 groups more tightly than $op1, then the result
+      # of executing $sql1 whould be the same as executing $sql3.
+      # If $op1 groups more tightly, or if $op1 and $op2 have 
+      # the same precedence, then executing $sql1 should return
+      # the same value as $sql2.
+      #
+      set sql1 "SELECT $A $op1 $B $op2 $C"
+      set sql2 "SELECT ($A $op1 $B) $op2 $C"
+      set sql3 "SELECT $A $op1 ($B $op2 $C)"
+
+      set a2 [db one $sql2]
+      set a3 [db one $sql3]
+
+      do_execsql_test $testname $sql1 [list [
+        if {$opprec($op2) < $opprec($op1)} {set a3} {set a2}
+      ]]
+      if {$a2 != $a3} { unset -nocomplain untested($op1,$op2) }
+    }
+  }
+}
+
+foreach op {* AND OR + || & |} { unset untested($op,$op) }
+unset untested(+,-)  ;#       Since    (a+b)-c == a+(b-c)
+unset untested(*,<<) ;#       Since    (a*b)<<c == a*(b<<c)
+
+do_test e_expr-1.1 { array names untested } {}
+
+# At one point, test 1.2.2 was failing. Instead of the correct result, it
+# was returning {1 1 0}. This would seem to indicate that LIKE has the
+# same precedence as '<'. Which is incorrect. It has lower precedence.
+#
+do_execsql_test e_expr-1.2.1 { 
+  SELECT 0 < 2 LIKE 1,   (0 < 2) LIKE 1,   0 < (2 LIKE 1)
+} {1 1 0}
+do_execsql_test e_expr-1.2.2 { 
+  SELECT 0 LIKE 0 < 2,   (0 LIKE 0) < 2,   0 LIKE (0 < 2)
+} {0 1 0}
+
+# Showing that LIKE and == have the same precedence
+#
+do_execsql_test e_expr-1.2.3 { 
+  SELECT 2 LIKE 2 == 1,   (2 LIKE 2) == 1,    2 LIKE (2 == 1)
+} {1 1 0}
+do_execsql_test e_expr-1.2.4 { 
+  SELECT 2 == 2 LIKE 1,   (2 == 2) LIKE 1,    2 == (2 LIKE 1)
+} {1 1 0}
+
+# Showing that < groups more tightly than == (< has higher precedence). 
+#
+do_execsql_test e_expr-1.2.5 { 
+  SELECT 0 < 2 == 1,   (0 < 2) == 1,   0 < (2 == 1)
+} {1 1 0}
+do_execsql_test e_expr-1.6 { 
+  SELECT 0 == 0 < 2,   (0 == 0) < 2,   0 == (0 < 2)
+} {0 1 0}
+
+#-------------------------------------------------------------------------
+# Check that the four unary prefix operators mentioned in the 
+# documentation exist.
+#
+# X-EVIDENCE-OF: R-13958-53419 Supported unary prefix operators are these:
+# - + ~ NOT
+#
+do_execsql_test e_expr-2.1 { SELECT -   10   } {-10}
+do_execsql_test e_expr-2.2 { SELECT +   10   } {10}
+do_execsql_test e_expr-2.3 { SELECT ~   10   } {-11}
+do_execsql_test e_expr-2.4 { SELECT NOT 10   } {0}
+
+#-------------------------------------------------------------------------
+# Tests for the two statements made regarding the unary + operator.
+#
+# EVIDENCE-OF: R-53670-03373 The unary operator + is a no-op.
+#
+# EVIDENCE-OF: R-19480-30968 It can be applied to strings, numbers,
+# blobs or NULL and it always returns a result with the same value as
+# the operand.
+#
+foreach {tn literal type} {
+  1     'helloworld'   text
+  2     45             integer
+  3     45.2           real
+  4     45.0           real
+  5     X'ABCDEF'      blob
+  6     NULL           null
+} {
+  set sql " SELECT quote( + $literal ), typeof( + $literal) "
+  do_execsql_test e_expr-3.$tn $sql [list $literal $type]
+}
+
+#-------------------------------------------------------------------------
+# Check that both = and == are both acceptable as the "equals" operator.
+# Similarly, either != or <> work as the not-equals operator.
+#
+# EVIDENCE-OF: R-03679-60639 Equals can be either = or ==.
+#
+# EVIDENCE-OF: R-49372-18364 The not-equal operator can be either != or
+# <>.
+#
+foreach {tn literal different} {
+  1   'helloworld'  '12345'
+  2   22            23
+  3   'xyz'         X'78797A'
+  4   X'78797A00'   'xyz'
+} {
+  do_execsql_test e_expr-4.$tn "
+    SELECT $literal  = $literal,   $literal == $literal,
+           $literal  = $different, $literal == $different,
+           $literal  = NULL,       $literal == NULL,
+           $literal != $literal,   $literal <> $literal,
+           $literal != $different, $literal <> $different,
+           $literal != NULL,       $literal != NULL
+
+  " {1 1 0 0 {} {} 0 0 1 1 {} {}}
+}
+
+#-------------------------------------------------------------------------
+# Test the || operator.
+#
+# EVIDENCE-OF: R-44409-62641 The || operator is "concatenate" - it joins
+# together the two strings of its operands.
+#
+foreach {tn a b} {
+  1   'helloworld'  '12345'
+  2   22            23
+} {
+  set as [db one "SELECT $a"]
+  set bs [db one "SELECT $b"]
+  
+  do_execsql_test e_expr-5.$tn "SELECT $a || $b" [list "${as}${bs}"]
+}
+
+#-------------------------------------------------------------------------
+# Test the % operator.
+#
+# EVIDENCE-OF: R-53431-59159 The % operator casts both of its operands
+# to type INTEGER and then computes the remainder after dividing the
+# left integer by the right integer.
+#
+do_execsql_test e_expr-6.1 {SELECT  72%5}  {2}
+do_execsql_test e_expr-6.2 {SELECT  72%-5} {2}
+do_execsql_test e_expr-6.3 {SELECT -72%-5} {-2}
+do_execsql_test e_expr-6.4 {SELECT -72%5}  {-2}
+do_execsql_test e_expr-6.5 {SELECT 72.35%5} {2.0}
+
+#-------------------------------------------------------------------------
+# EVIDENCE-OF: R-15904-00746 The result of any binary operator is either
+# a numeric value or NULL, except for the || concatenation operator, and
+# the -> and ->> extract operators which evaluate to either
+# NULL or a text value.
+#
+set literals {
+  1 'abc'        2 'hexadecimal'       3 ''
+  4 123          5 -123                6 0
+  7 123.4        8 0.0                 9 -123.4
+ 10 X'ABCDEF'   11 X''                12 X'0000'
+ 13     NULL
+}
+foreach op $oplist {
+  foreach {n1 rhs} $literals { 
+  foreach {n2 lhs} $literals {
+
+    set t [db one " SELECT typeof($lhs $op $rhs) "]
+    do_test e_expr-7.$opname($op).$n1.$n2 {
+      expr {
+           ($op=="||" && ($t == "text" || $t == "null"))
+        || ($op!="||" && ($t == "integer" || $t == "real" || $t == "null"))
+      }
+    } 1
+
+  }}
+}
+
+#-------------------------------------------------------------------------
+# Test the IS and IS NOT operators.
+#
+# EVIDENCE-OF: R-24731-45773 The IS and IS NOT operators work like = and
+# != except when one or both of the operands are NULL.
+#
+# EVIDENCE-OF: R-06325-15315 In this case, if both operands are NULL,
+# then the IS operator evaluates to 1 (true) and the IS NOT operator
+# evaluates to 0 (false).
+#
+# EVIDENCE-OF: R-19812-36779 If one operand is NULL and the other is
+# not, then the IS operator evaluates to 0 (false) and the IS NOT
+# operator is 1 (true).
+#
+# EVIDENCE-OF: R-61975-13410 It is not possible for an IS or IS NOT
+# expression to evaluate to NULL.
+#
+do_execsql_test e_expr-8.1.1  { SELECT NULL IS     NULL } {1}
+do_execsql_test e_expr-8.1.2  { SELECT 'ab' IS     NULL } {0}
+do_execsql_test e_expr-8.1.3  { SELECT NULL IS     'ab' } {0}
+do_execsql_test e_expr-8.1.4  { SELECT 'ab' IS     'ab' } {1}
+do_execsql_test e_expr-8.1.5  { SELECT NULL ==     NULL } {{}}
+do_execsql_test e_expr-8.1.6  { SELECT 'ab' ==     NULL } {{}}
+do_execsql_test e_expr-8.1.7  { SELECT NULL ==     'ab' } {{}}
+do_execsql_test e_expr-8.1.8  { SELECT 'ab' ==     'ab' } {1}
+do_execsql_test e_expr-8.1.9  { SELECT NULL IS NOT NULL } {0}
+do_execsql_test e_expr-8.1.10 { SELECT 'ab' IS NOT NULL } {1}
+do_execsql_test e_expr-8.1.11 { SELECT NULL IS NOT 'ab' } {1}
+do_execsql_test e_expr-8.1.12 { SELECT 'ab' IS NOT 'ab' } {0}
+do_execsql_test e_expr-8.1.13 { SELECT NULL !=     NULL } {{}}
+do_execsql_test e_expr-8.1.14 { SELECT 'ab' !=     NULL } {{}}
+do_execsql_test e_expr-8.1.15 { SELECT NULL !=     'ab' } {{}}
+do_execsql_test e_expr-8.1.16 { SELECT 'ab' !=     'ab' } {0}
+
+foreach {n1 rhs} $literals { 
+  foreach {n2 lhs} $literals {
+    if {$rhs!="NULL" && $lhs!="NULL"} {
+      set eq [execsql "SELECT $lhs = $rhs, $lhs != $rhs"]
+    } else {
+      set eq [list [expr {$lhs=="NULL" && $rhs=="NULL"}] \
+                   [expr {$lhs!="NULL" || $rhs!="NULL"}]
+      ]
+    }
+    set test e_expr-8.2.$n1.$n2
+    do_execsql_test $test.1 "SELECT $lhs IS $rhs, $lhs IS NOT $rhs" $eq
+    do_execsql_test $test.2 "
+      SELECT ($lhs IS $rhs) IS NULL, ($lhs IS NOT $rhs) IS NULL
+    " {0 0}
+  }
+}
+
+#-------------------------------------------------------------------------
+# Run some tests on the COLLATE "unary postfix operator".
+#
+# This collation sequence reverses both arguments before using 
+# [string compare] to compare them. For example, when comparing the
+# strings 'one' and 'four', return the result of:
+#   
+#   string compare eno ruof
+#
+proc reverse_str {zStr} {
+  set out ""
+  foreach c [split $zStr {}] { set out "${c}${out}" }
+  set out
+}
+proc reverse_collate {zLeft zRight} {
+  string compare [reverse_str $zLeft] [reverse_str $zRight]
+}
+db collate reverse reverse_collate
+
+# EVIDENCE-OF: R-59577-33471 The COLLATE operator is a unary postfix
+# operator that assigns a collating sequence to an expression.
+#
+# X-EVIDENCE-OF: R-36231-30731 The COLLATE operator has a higher
+# precedence (binds more tightly) than any binary operator and any unary
+# prefix operator except "~".
+#
+do_execsql_test e_expr-9.1 { SELECT  'abcd' < 'bbbb'    COLLATE reverse } 0
+do_execsql_test e_expr-9.2 { SELECT ('abcd' < 'bbbb')   COLLATE reverse } 1
+do_execsql_test e_expr-9.3 { SELECT  'abcd' <= 'bbbb'   COLLATE reverse } 0
+do_execsql_test e_expr-9.4 { SELECT ('abcd' <= 'bbbb')  COLLATE reverse } 1
+
+do_execsql_test e_expr-9.5 { SELECT  'abcd' > 'bbbb'    COLLATE reverse } 1
+do_execsql_test e_expr-9.6 { SELECT ('abcd' > 'bbbb')   COLLATE reverse } 0
+do_execsql_test e_expr-9.7 { SELECT  'abcd' >= 'bbbb'   COLLATE reverse } 1
+do_execsql_test e_expr-9.8 { SELECT ('abcd' >= 'bbbb')  COLLATE reverse } 0
+
+do_execsql_test e_expr-9.10 { SELECT  'abcd' =  'ABCD'  COLLATE nocase } 1
+do_execsql_test e_expr-9.11 { SELECT ('abcd' =  'ABCD') COLLATE nocase } 0
+do_execsql_test e_expr-9.12 { SELECT  'abcd' == 'ABCD'  COLLATE nocase } 1
+do_execsql_test e_expr-9.13 { SELECT ('abcd' == 'ABCD') COLLATE nocase } 0
+do_execsql_test e_expr-9.14 { SELECT  'abcd' IS 'ABCD'  COLLATE nocase } 1
+do_execsql_test e_expr-9.15 { SELECT ('abcd' IS 'ABCD') COLLATE nocase } 0
+
+do_execsql_test e_expr-9.16 { SELECT  'abcd' != 'ABCD'      COLLATE nocase } 0
+do_execsql_test e_expr-9.17 { SELECT ('abcd' != 'ABCD')     COLLATE nocase } 1
+do_execsql_test e_expr-9.18 { SELECT  'abcd' <> 'ABCD'      COLLATE nocase } 0
+do_execsql_test e_expr-9.19 { SELECT ('abcd' <> 'ABCD')     COLLATE nocase } 1
+do_execsql_test e_expr-9.20 { SELECT  'abcd' IS NOT 'ABCD'  COLLATE nocase } 0
+do_execsql_test e_expr-9.21 { SELECT ('abcd' IS NOT 'ABCD') COLLATE nocase } 1
+
+do_execsql_test e_expr-9.22 { 
+  SELECT 'bbb' BETWEEN 'AAA' AND 'CCC' COLLATE nocase 
+} 1
+do_execsql_test e_expr-9.23 { 
+  SELECT ('bbb' BETWEEN 'AAA' AND 'CCC') COLLATE nocase 
+} 0
+
+# EVIDENCE-OF: R-58731-25439 The collating sequence set by the COLLATE
+# operator overrides the collating sequence determined by the COLLATE
+# clause in a table column definition.
+#
+do_execsql_test e_expr-9.24 { 
+  CREATE TABLE t24(a COLLATE NOCASE, b);
+  INSERT INTO t24 VALUES('aaa', 1);
+  INSERT INTO t24 VALUES('bbb', 2);
+  INSERT INTO t24 VALUES('ccc', 3);
+} {}
+do_execsql_test e_expr-9.25 { SELECT 'BBB' = a FROM t24 } {0 1 0}
+do_execsql_test e_expr-9.25 { SELECT a = 'BBB' FROM t24 } {0 1 0}
+do_execsql_test e_expr-9.25 { SELECT 'BBB' = a COLLATE binary FROM t24 } {0 0 0}
+do_execsql_test e_expr-9.25 { SELECT a COLLATE binary = 'BBB' FROM t24 } {0 0 0}
+
+#-------------------------------------------------------------------------
+# Test statements related to literal values.
+#
+# EVIDENCE-OF: R-31536-32008 Literal values may be integers, floating
+# point numbers, strings, BLOBs, or NULLs.
+#
+do_execsql_test e_expr-10.1.1 { SELECT typeof(5)       } {integer}
+do_execsql_test e_expr-10.1.2 { SELECT typeof(5.1)     } {real}
+do_execsql_test e_expr-10.1.3 { SELECT typeof('5.1')   } {text}
+do_execsql_test e_expr-10.1.4 { SELECT typeof(X'ABCD') } {blob}
+do_execsql_test e_expr-10.1.5 { SELECT typeof(NULL)    } {null}
+
+# "Scientific notation is supported for point literal values."
+#
+do_execsql_test e_expr-10.2.1 { SELECT typeof(3.4e-02)    } {real}
+do_execsql_test e_expr-10.2.2 { SELECT typeof(3e+5)       } {real}
+do_execsql_test e_expr-10.2.3 { SELECT 3.4e-02            } {0.034}
+do_execsql_test e_expr-10.2.4 { SELECT 3e+4               } {30000.0}
+
+# EVIDENCE-OF: R-35229-17830 A string constant is formed by enclosing
+# the string in single quotes (').
+#
+# EVIDENCE-OF: R-07100-06606 A single quote within the string can be
+# encoded by putting two single quotes in a row - as in Pascal.
+#
+do_execsql_test e_expr-10.3.1 { SELECT 'is not' }         {{is not}}
+do_execsql_test e_expr-10.3.2 { SELECT typeof('is not') } {text}
+do_execsql_test e_expr-10.3.3 { SELECT 'isn''t' }         {isn't}
+do_execsql_test e_expr-10.3.4 { SELECT typeof('isn''t') } {text}
+
+# EVIDENCE-OF: R-09593-03321 BLOB literals are string literals
+# containing hexadecimal data and preceded by a single "x" or "X"
+# character.
+#
+# EVIDENCE-OF: R-19836-11244 Example: X'53514C697465'
+#
+do_execsql_test e_expr-10.4.1 { SELECT typeof(X'0123456789ABCDEF') } blob
+do_execsql_test e_expr-10.4.2 { SELECT typeof(x'0123456789ABCDEF') } blob
+do_execsql_test e_expr-10.4.3 { SELECT typeof(X'0123456789abcdef') } blob
+do_execsql_test e_expr-10.4.4 { SELECT typeof(x'0123456789abcdef') } blob
+do_execsql_test e_expr-10.4.5 { SELECT typeof(X'53514C697465')     } blob
+
+# EVIDENCE-OF: R-23914-51476 A literal value can also be the token
+# "NULL".
+#
+do_execsql_test e_expr-10.5.1 { SELECT NULL         } {{}}
+do_execsql_test e_expr-10.5.2 { SELECT typeof(NULL) } {null}
+
+#-------------------------------------------------------------------------
+# Test statements related to bound parameters
+#
+
+proc parameter_test {tn sql params result} {
+  set stmt [sqlite3_prepare_v2 db $sql -1]
+
+  foreach {number name} $params {
+    set nm [sqlite3_bind_parameter_name $stmt $number]
+    do_test $tn.name.$number [list set {} $nm] $name
+    sqlite3_bind_int $stmt $number [expr -1 * $number]
+  }
+
+  sqlite3_step $stmt
+
+  set res [list]
+  for {set i 0} {$i < [sqlite3_column_count $stmt]} {incr i} {
+    lappend res [sqlite3_column_text $stmt $i]
+  }
+
+  set rc [sqlite3_finalize $stmt]
+  do_test $tn.rc [list set {} $rc] SQLITE_OK
+  do_test $tn.res [list set {} $res] $result
+}
+
+# EVIDENCE-OF: R-33509-39458 A question mark followed by a number NNN
+# holds a spot for the NNN-th parameter. NNN must be between 1 and
+# SQLITE_MAX_VARIABLE_NUMBER.
+#
+set mvn $SQLITE_MAX_VARIABLE_NUMBER
+parameter_test e_expr-11.1 "
+  SELECT ?1, ?123, ?$SQLITE_MAX_VARIABLE_NUMBER, ?123, ?4
+"   "1 ?1  123 ?123 $mvn ?$mvn 4 ?4"   "-1 -123 -$mvn -123 -4"
+
+set errmsg "variable number must be between ?1 and ?$SQLITE_MAX_VARIABLE_NUMBER"
+foreach {tn param_number} [list \
+  2  0                                    \
+  3  [expr $SQLITE_MAX_VARIABLE_NUMBER+1] \
+  4  [expr $SQLITE_MAX_VARIABLE_NUMBER+2] \
+  5  12345678903456789034567890234567890  \
+  6  2147483648                           \
+  7  2147483649                           \
+  8  4294967296                           \
+  9  4294967297                           \
+  10 9223372036854775808                  \
+  11 9223372036854775809                  \
+  12 18446744073709551616                 \
+  13 18446744073709551617                 \
+] {
+  do_catchsql_test e_expr-11.1.$tn "SELECT ?$param_number" [list 1 $errmsg]
+}
+
+# EVIDENCE-OF: R-33670-36097 A question mark that is not followed by a
+# number creates a parameter with a number one greater than the largest
+# parameter number already assigned.
+#
+# EVIDENCE-OF: R-42938-07030 If this means the parameter number is
+# greater than SQLITE_MAX_VARIABLE_NUMBER, it is an error.
+#
+parameter_test e_expr-11.2.1 "SELECT ?"          {1 {}}       -1
+parameter_test e_expr-11.2.2 "SELECT ?, ?"       {1 {} 2 {}}  {-1 -2}
+parameter_test e_expr-11.2.3 "SELECT ?5, ?"      {5 ?5 6 {}}  {-5 -6}
+parameter_test e_expr-11.2.4 "SELECT ?, ?5"      {1 {} 5 ?5}  {-1 -5}
+parameter_test e_expr-11.2.5 "SELECT ?, ?456, ?" {
+  1 {} 456 ?456 457 {}
+}  {-1 -456 -457}
+parameter_test e_expr-11.2.5 "SELECT ?, ?456, ?4, ?" {
+  1 {} 456 ?456 4 ?4 457 {}
+}  {-1 -456 -4 -457}
+foreach {tn sql} [list                           \
+  1  "SELECT ?$mvn, ?"                           \
+  2  "SELECT ?[expr $mvn-5], ?, ?, ?, ?, ?, ?"   \
+  3  "SELECT ?[expr $mvn], ?5, ?6, ?"            \
+] {
+  do_catchsql_test e_expr-11.3.$tn $sql [list 1 {too many SQL variables}]
+}
+
+# EVIDENCE-OF: R-11620-22743 A colon followed by an identifier name
+# holds a spot for a named parameter with the name :AAAA.
+#
+# Identifiers in SQLite consist of alphanumeric, '_' and '$' characters,
+# and any UTF characters with codepoints larger than 127 (non-ASCII 
+# characters).
+#
+parameter_test e_expr-11.2.1 {SELECT :AAAA}         {1 :AAAA}       -1
+parameter_test e_expr-11.2.2 {SELECT :123}          {1 :123}        -1
+parameter_test e_expr-11.2.3 {SELECT :__}           {1 :__}         -1
+parameter_test e_expr-11.2.4 {SELECT :_$_}          {1 :_$_}        -1
+parameter_test e_expr-11.2.5 "
+  SELECT :\u0e40\u0e2d\u0e28\u0e02\u0e39\u0e40\u0e2d\u0e25
+" "1 :\u0e40\u0e2d\u0e28\u0e02\u0e39\u0e40\u0e2d\u0e25" -1
+parameter_test e_expr-11.2.6 "SELECT :\u0080" "1 :\u0080" -1
+
+# EVIDENCE-OF: R-49783-61279 An "at" sign works exactly like a colon,
+# except that the name of the parameter created is @AAAA.
+#
+parameter_test e_expr-11.3.1 {SELECT @AAAA}         {1 @AAAA}       -1
+parameter_test e_expr-11.3.2 {SELECT @123}          {1 @123}        -1
+parameter_test e_expr-11.3.3 {SELECT @__}           {1 @__}         -1
+parameter_test e_expr-11.3.4 {SELECT @_$_}          {1 @_$_}        -1
+parameter_test e_expr-11.3.5 "
+  SELECT @\u0e40\u0e2d\u0e28\u0e02\u0e39\u0e40\u0e2d\u0e25
+" "1 @\u0e40\u0e2d\u0e28\u0e02\u0e39\u0e40\u0e2d\u0e25" -1
+parameter_test e_expr-11.3.6 "SELECT @\u0080" "1 @\u0080" -1
+
+# EVIDENCE-OF: R-62610-51329 A dollar-sign followed by an identifier
+# name also holds a spot for a named parameter with the name $AAAA.
+#
+# EVIDENCE-OF: R-55025-21042 The identifier name in this case can
+# include one or more occurrences of "::" and a suffix enclosed in
+# "(...)" containing any text at all.
+#
+# Note: Looks like an identifier cannot consist entirely of "::" 
+# characters or just a suffix. Also, the other named variable characters
+# (: and @) work the same way internally. Why not just document it that way?
+#
+parameter_test e_expr-11.4.1 {SELECT $AAAA}         {1 $AAAA}       -1
+parameter_test e_expr-11.4.2 {SELECT $123}          {1 $123}        -1
+parameter_test e_expr-11.4.3 {SELECT $__}           {1 $__}         -1
+parameter_test e_expr-11.4.4 {SELECT $_$_}          {1 $_$_}        -1
+parameter_test e_expr-11.4.5 "
+  SELECT \$\u0e40\u0e2d\u0e28\u0e02\u0e39\u0e40\u0e2d\u0e25
+" "1 \$\u0e40\u0e2d\u0e28\u0e02\u0e39\u0e40\u0e2d\u0e25" -1
+parameter_test e_expr-11.4.6 "SELECT \$\u0080" "1 \$\u0080" -1
+
+parameter_test e_expr-11.5.1 {SELECT $::::a(++--++)} {1 $::::a(++--++)} -1
+parameter_test e_expr-11.5.2 {SELECT $::a()} {1 $::a()} -1
+parameter_test e_expr-11.5.3 {SELECT $::1(::#$)} {1 $::1(::#$)} -1
+ 
+# EVIDENCE-OF: R-11370-04520 Named parameters are also numbered. The
+# number assigned is one greater than the largest parameter number
+# already assigned.
+#
+# EVIDENCE-OF: R-42620-22184 If this means the parameter would be
+# assigned a number greater than SQLITE_MAX_VARIABLE_NUMBER, it is an
+# error.
+#
+parameter_test e_expr-11.6.1 "SELECT ?, @abc"    {1 {} 2 @abc} {-1 -2}
+parameter_test e_expr-11.6.2 "SELECT ?123, :a1"  {123 ?123 124 :a1} {-123 -124}
+parameter_test e_expr-11.6.3 {SELECT $a, ?8, ?, $b, ?2, $c} {
+  1 $a 8 ?8 9 {} 10 $b 2 ?2 11 $c
+} {-1 -8 -9 -10 -2 -11}
+foreach {tn sql} [list                           \
+  1  "SELECT ?$mvn, \$::a"                       \
+  2  "SELECT ?$mvn, ?4, @a1"                     \
+  3  "SELECT ?[expr $mvn-2], :bag, @123, \$x"    \
+] {
+  do_catchsql_test e_expr-11.7.$tn $sql [list 1 {too many SQL variables}]
+}
+
+# EVIDENCE-OF: R-14068-49671 Parameters that are not assigned values
+# using sqlite3_bind() are treated as NULL.
+#
+do_test e_expr-11.7.1 {
+  set stmt [sqlite3_prepare_v2 db { SELECT ?, :a, @b, $d } -1]
+  sqlite3_step $stmt
+
+  list [sqlite3_column_type $stmt 0] \
+       [sqlite3_column_type $stmt 1] \
+       [sqlite3_column_type $stmt 2] \
+       [sqlite3_column_type $stmt 3] 
+} {NULL NULL NULL NULL}
+do_test e_expr-11.7.1 { sqlite3_finalize $stmt } SQLITE_OK
+
+#-------------------------------------------------------------------------
+# "Test" the syntax diagrams in lang_expr.html.
+#
+# -- syntax diagram signed-number
+#
+do_execsql_test e_expr-12.1.1 { SELECT 0, +0, -0 } {0 0 0}
+do_execsql_test e_expr-12.1.2 { SELECT 1, +1, -1 } {1 1 -1}
+do_execsql_test e_expr-12.1.3 { SELECT 2, +2, -2 } {2 2 -2}
+do_execsql_test e_expr-12.1.4 { 
+  SELECT 1.4, +1.4, -1.4 
+} {1.4 1.4 -1.4}
+do_execsql_test e_expr-12.1.5 { 
+  SELECT 1.5e+5, +1.5e+5, -1.5e+5 
+} {150000.0 150000.0 -150000.0}
+do_execsql_test e_expr-12.1.6 { 
+  SELECT 0.0001, +0.0001, -0.0001 
+} {0.0001 0.0001 -0.0001}
+
+# -- syntax diagram literal-value
+#
+set sqlite_current_time 1
+do_execsql_test e_expr-12.2.1 {SELECT 123}               {123}
+do_execsql_test e_expr-12.2.2 {SELECT 123.4e05}          {12340000.0}
+do_execsql_test e_expr-12.2.3 {SELECT 'abcde'}           {abcde}
+do_execsql_test e_expr-12.2.4 {SELECT X'414243'}         {ABC}
+do_execsql_test e_expr-12.2.5 {SELECT NULL}              {{}}
+do_execsql_test e_expr-12.2.6 {SELECT CURRENT_TIME}      {00:00:01}
+do_execsql_test e_expr-12.2.7 {SELECT CURRENT_DATE}      {1970-01-01}
+do_execsql_test e_expr-12.2.8 {SELECT CURRENT_TIMESTAMP} {{1970-01-01 00:00:01}}
+set sqlite_current_time 0
+
+# -- syntax diagram expr
+#
+forcedelete test.db2
+execsql {
+  ATTACH 'test.db2' AS dbname;
+  CREATE TABLE dbname.tblname(cname);
+}
+
+proc glob {args} {return 1}
+db function glob glob
+db function match glob
+db function regexp glob
+
+foreach {tn expr} {
+  1 123
+  2 123.4e05
+  3 'abcde'
+  4 X'414243'
+  5 NULL
+  6 CURRENT_TIME
+  7 CURRENT_DATE
+  8 CURRENT_TIMESTAMP
+
+  9 ?
+ 10 ?123
+ 11 @hello
+ 12 :world
+ 13 $tcl
+ 14 $tcl(array)
+  
+  15 cname
+  16 tblname.cname
+  17 dbname.tblname.cname
+
+  18 "+ EXPR"
+  19 "- EXPR"
+  20 "NOT EXPR"
+  21 "~ EXPR"
+
+  22 "EXPR1 || EXPR2"
+  23 "EXPR1 * EXPR2"
+  24 "EXPR1 / EXPR2"
+  25 "EXPR1 % EXPR2"
+  26 "EXPR1 + EXPR2"
+  27 "EXPR1 - EXPR2"
+  28 "EXPR1 << EXPR2"
+  29 "EXPR1 >> EXPR2"
+  30 "EXPR1 & EXPR2"
+  31 "EXPR1 | EXPR2"
+  32 "EXPR1 < EXPR2"
+  33 "EXPR1 <= EXPR2"
+  34 "EXPR1 > EXPR2"
+  35 "EXPR1 >= EXPR2"
+  36 "EXPR1 = EXPR2"
+  37 "EXPR1 == EXPR2"
+  38 "EXPR1 != EXPR2"
+  39 "EXPR1 <> EXPR2"
+  40 "EXPR1 IS EXPR2"
+  41 "EXPR1 IS NOT EXPR2"
+  42 "EXPR1 AND EXPR2"
+  43 "EXPR1 OR EXPR2"
+ 
+  44 "count(*)"
+  45 "count(DISTINCT EXPR)"
+  46 "substr(EXPR, 10, 20)"
+  47 "changes()"
+ 
+  48 "( EXPR )"
+ 
+  49 "CAST ( EXPR AS integer )"
+  50 "CAST ( EXPR AS 'abcd' )"
+  51 "CAST ( EXPR AS 'ab$ $cd' )"
+ 
+  52 "EXPR COLLATE nocase"
+  53 "EXPR COLLATE binary"
+ 
+  54 "EXPR1 LIKE EXPR2"
+  55 "EXPR1 LIKE EXPR2 ESCAPE EXPR"
+  56 "EXPR1 GLOB EXPR2"
+  57 "EXPR1 GLOB EXPR2 ESCAPE EXPR"
+  58 "EXPR1 REGEXP EXPR2"
+  59 "EXPR1 REGEXP EXPR2 ESCAPE EXPR"
+  60 "EXPR1 MATCH EXPR2"
+  61 "EXPR1 MATCH EXPR2 ESCAPE EXPR"
+  62 "EXPR1 NOT LIKE EXPR2"
+  63 "EXPR1 NOT LIKE EXPR2 ESCAPE EXPR"
+  64 "EXPR1 NOT GLOB EXPR2"
+  65 "EXPR1 NOT GLOB EXPR2 ESCAPE EXPR"
+  66 "EXPR1 NOT REGEXP EXPR2"
+  67 "EXPR1 NOT REGEXP EXPR2 ESCAPE EXPR"
+  68 "EXPR1 NOT MATCH EXPR2"
+  69 "EXPR1 NOT MATCH EXPR2 ESCAPE EXPR"
+ 
+  70 "EXPR ISNULL"
+  71 "EXPR NOTNULL"
+  72 "EXPR NOT NULL"
+ 
+  73 "EXPR1 IS EXPR2"
+  74 "EXPR1 IS NOT EXPR2"
+
+  75 "EXPR NOT BETWEEN EXPR1 AND EXPR2"
+  76 "EXPR BETWEEN EXPR1 AND EXPR2"
+
+  77 "EXPR NOT IN (SELECT cname FROM tblname)"
+  78 "EXPR NOT IN (1)"
+  79 "EXPR NOT IN (1, 2, 3)"
+  80 "EXPR NOT IN tblname"
+  81 "EXPR NOT IN dbname.tblname"
+  82 "EXPR IN (SELECT cname FROM tblname)"
+  83 "EXPR IN (1)"
+  84 "EXPR IN (1, 2, 3)"
+  85 "EXPR IN tblname"
+  86 "EXPR IN dbname.tblname"
+
+  87 "EXISTS (SELECT cname FROM tblname)"
+  88 "NOT EXISTS (SELECT cname FROM tblname)"
+
+  89 "CASE EXPR WHEN EXPR1 THEN EXPR2 ELSE EXPR END"
+  90 "CASE EXPR WHEN EXPR1 THEN EXPR2 END"
+  91 "CASE EXPR WHEN EXPR1 THEN EXPR2 WHEN EXPR THEN EXPR1 ELSE EXPR2 END"
+  92 "CASE EXPR WHEN EXPR1 THEN EXPR2 WHEN EXPR THEN EXPR1 END"
+  93 "CASE WHEN EXPR1 THEN EXPR2 ELSE EXPR END"
+  94 "CASE WHEN EXPR1 THEN EXPR2 END"
+  95 "CASE WHEN EXPR1 THEN EXPR2 WHEN EXPR THEN EXPR1 ELSE EXPR2 END"
+  96 "CASE WHEN EXPR1 THEN EXPR2 WHEN EXPR THEN EXPR1 END"
+} {
+
+  # If the expression string being parsed contains "EXPR2", then replace
+  # string "EXPR1" and "EXPR2" with arbitrary SQL expressions. If it 
+  # contains "EXPR", then replace EXPR with an arbitrary SQL expression.
+  # 
+  set elist [list $expr]
+  if {[string match *EXPR2* $expr]} {
+    set elist [list]
+    foreach {e1 e2} { cname "34+22" } {
+      lappend elist [string map [list EXPR1 $e1 EXPR2 $e2] $expr]
+    }
+  } 
+  if {[string match *EXPR* $expr]} {
+    set elist2 [list]
+    foreach el $elist {
+      foreach e { cname "34+22" } {
+        lappend elist2 [string map [list EXPR $e] $el]
+      }
+    }
+    set elist $elist2
+  }
+
+  set x 0
+  foreach e $elist {
+    incr x
+    do_test e_expr-12.3.$tn.$x { 
+      set rc [catch { execsql "SELECT $e FROM tblname" } msg]
+    } {0}
+  }
+}
+
+# -- syntax diagram raise-function
+#
+foreach {tn raiseexpr} {
+  1 "RAISE(IGNORE)"
+  2 "RAISE(ROLLBACK, 'error message')"
+  3 "RAISE(ABORT, 'error message')"
+  4 "RAISE(FAIL, 'error message')"
+} {
+  do_execsql_test e_expr-12.4.$tn "
+    CREATE TRIGGER dbname.tr$tn BEFORE DELETE ON tblname BEGIN
+      SELECT $raiseexpr ;
+    END;
+  " {}
+}
+
+#-------------------------------------------------------------------------
+# Test the statements related to the BETWEEN operator.
+#
+# EVIDENCE-OF: R-40079-54503 The BETWEEN operator is logically
+# equivalent to a pair of comparisons. "x BETWEEN y AND z" is equivalent
+# to "x>=y AND x<=z" except that with BETWEEN, the x expression is
+# only evaluated once.
+#
+db func x x
+proc x {} { incr ::xcount ; return [expr $::x] }
+foreach {tn x expr res nEval} {
+  1  10  "x() >= 5 AND x() <= 15"  1  2
+  2  10  "x() BETWEEN 5 AND 15"    1  1
+
+  3   5  "x() >= 5 AND x() <= 5"   1  2
+  4   5  "x() BETWEEN 5 AND 5"     1  1
+
+  5   9  "(x(),8) >= (9,7) AND (x(),8)<=(9,10)"  1 2
+  6   9  "(x(),8) BETWEEN (9,7) AND (9,10)"      1 1
+} {
+  do_test e_expr-13.1.$tn {
+    set ::xcount 0
+    set a [execsql "SELECT $expr"]
+    list $::xcount $a
+  } [list $nEval $res]
+}
+
+# X-EVIDENCE-OF: R-05155-34454 The precedence of the BETWEEN operator is
+# the same as the precedence as operators == and != and LIKE and groups
+# left to right.
+# 
+# Therefore, BETWEEN groups more tightly than operator "AND", but less
+# so than "<".
+#
+do_execsql_test e_expr-13.2.1  { SELECT 1 == 10 BETWEEN 0 AND 2   }  1
+do_execsql_test e_expr-13.2.2  { SELECT (1 == 10) BETWEEN 0 AND 2 }  1
+do_execsql_test e_expr-13.2.3  { SELECT 1 == (10 BETWEEN 0 AND 2) }  0
+do_execsql_test e_expr-13.2.4  { SELECT  6 BETWEEN 4 AND 8 == 1 }    1
+do_execsql_test e_expr-13.2.5  { SELECT (6 BETWEEN 4 AND 8) == 1 }   1
+do_execsql_test e_expr-13.2.6  { SELECT  6 BETWEEN 4 AND (8 == 1) }  0
+
+do_execsql_test e_expr-13.2.7  { SELECT  5 BETWEEN 0 AND 0  != 1 }   1
+do_execsql_test e_expr-13.2.8  { SELECT (5 BETWEEN 0 AND 0) != 1 }   1
+do_execsql_test e_expr-13.2.9  { SELECT  5 BETWEEN 0 AND (0 != 1) }  0
+do_execsql_test e_expr-13.2.10 { SELECT  1 != 0  BETWEEN 0 AND 2  }  1
+do_execsql_test e_expr-13.2.11 { SELECT (1 != 0) BETWEEN 0 AND 2  }  1
+do_execsql_test e_expr-13.2.12 { SELECT  1 != (0 BETWEEN 0 AND 2) }  0
+
+do_execsql_test e_expr-13.2.13 { SELECT 1 LIKE 10 BETWEEN 0 AND 2   }  1
+do_execsql_test e_expr-13.2.14 { SELECT (1 LIKE 10) BETWEEN 0 AND 2 }  1
+do_execsql_test e_expr-13.2.15 { SELECT 1 LIKE (10 BETWEEN 0 AND 2) }  0
+do_execsql_test e_expr-13.2.16 { SELECT  6 BETWEEN 4 AND 8 LIKE 1   }  1
+do_execsql_test e_expr-13.2.17 { SELECT (6 BETWEEN 4 AND 8) LIKE 1  }  1
+do_execsql_test e_expr-13.2.18 { SELECT  6 BETWEEN 4 AND (8 LIKE 1) }  0
+
+do_execsql_test e_expr-13.2.19 { SELECT 0 AND 0 BETWEEN 0 AND 1   } 0
+do_execsql_test e_expr-13.2.20 { SELECT 0 AND (0 BETWEEN 0 AND 1) } 0
+do_execsql_test e_expr-13.2.21 { SELECT (0 AND 0) BETWEEN 0 AND 1 } 1
+do_execsql_test e_expr-13.2.22 { SELECT 0 BETWEEN -1 AND 1 AND 0   } 0
+do_execsql_test e_expr-13.2.23 { SELECT (0 BETWEEN -1 AND 1) AND 0 } 0
+do_execsql_test e_expr-13.2.24 { SELECT 0 BETWEEN -1 AND (1 AND 0) } 1
+
+do_execsql_test e_expr-13.2.25 { SELECT 2 < 3 BETWEEN 0 AND 1   } 1
+do_execsql_test e_expr-13.2.26 { SELECT (2 < 3) BETWEEN 0 AND 1 } 1
+do_execsql_test e_expr-13.2.27 { SELECT 2 < (3 BETWEEN 0 AND 1) } 0
+do_execsql_test e_expr-13.2.28 { SELECT 2 BETWEEN 1 AND 2 < 3    } 0
+do_execsql_test e_expr-13.2.29 { SELECT 2 BETWEEN 1 AND (2 < 3)  } 0
+do_execsql_test e_expr-13.2.30 { SELECT (2 BETWEEN 1 AND 2) < 3  } 1
+
+#-------------------------------------------------------------------------
+# Test the statements related to the LIKE and GLOB operators.
+#
+# EVIDENCE-OF: R-16584-60189 The LIKE operator does a pattern matching
+# comparison.
+#
+# EVIDENCE-OF: R-11295-04657 The operand to the right of the LIKE
+# operator contains the pattern and the left hand operand contains the
+# string to match against the pattern.
+#
+do_execsql_test e_expr-14.1.1 { SELECT 'abc%' LIKE 'abcde' } 0
+do_execsql_test e_expr-14.1.2 { SELECT 'abcde' LIKE 'abc%' } 1
+
+# EVIDENCE-OF: R-55406-38524 A percent symbol ("%") in the LIKE pattern
+# matches any sequence of zero or more characters in the string.
+#
+do_execsql_test e_expr-14.2.1 { SELECT 'abde'    LIKE 'ab%de' } 1
+do_execsql_test e_expr-14.2.2 { SELECT 'abXde'   LIKE 'ab%de' } 1
+do_execsql_test e_expr-14.2.3 { SELECT 'abABCde' LIKE 'ab%de' } 1
+
+# EVIDENCE-OF: R-30433-25443 An underscore ("_") in the LIKE pattern
+# matches any single character in the string.
+#
+do_execsql_test e_expr-14.3.1 { SELECT 'abde'    LIKE 'ab_de' } 0
+do_execsql_test e_expr-14.3.2 { SELECT 'abXde'   LIKE 'ab_de' } 1
+do_execsql_test e_expr-14.3.3 { SELECT 'abABCde' LIKE 'ab_de' } 0
+
+# EVIDENCE-OF: R-59007-20454 Any other character matches itself or its
+# lower/upper case equivalent (i.e. case-insensitive matching).
+#
+do_execsql_test e_expr-14.4.1 { SELECT 'abc' LIKE 'aBc' } 1
+do_execsql_test e_expr-14.4.2 { SELECT 'aBc' LIKE 'aBc' } 1
+do_execsql_test e_expr-14.4.3 { SELECT 'ac'  LIKE 'aBc' } 0
+
+# EVIDENCE-OF: R-23648-58527 SQLite only understands upper/lower case
+# for ASCII characters by default.
+#
+# EVIDENCE-OF: R-04532-11527 The LIKE operator is case sensitive by
+# default for unicode characters that are beyond the ASCII range.
+#
+# EVIDENCE-OF: R-44381-11669 the expression
+# 'a'&nbsp;LIKE&nbsp;'A' is TRUE but
+# '&aelig;'&nbsp;LIKE&nbsp;'&AElig;' is FALSE.
+#
+#   The restriction to ASCII characters does not apply if the ICU
+#   library is compiled in. When ICU is enabled SQLite does not act
+#   as it does "by default".
+#
+do_execsql_test e_expr-14.5.1 { SELECT 'A' LIKE 'a'         } 1
+ifcapable !icu {
+  do_execsql_test e_expr-14.5.2 "SELECT '\u00c6' LIKE '\u00e6'" 0
+}
+
+# EVIDENCE-OF: R-56683-13731 If the optional ESCAPE clause is present,
+# then the expression following the ESCAPE keyword must evaluate to a
+# string consisting of a single character.
+#
+do_catchsql_test e_expr-14.6.1 { 
+  SELECT 'A' LIKE 'a' ESCAPE '12' 
+} {1 {ESCAPE expression must be a single character}}
+do_catchsql_test e_expr-14.6.2 { 
+  SELECT 'A' LIKE 'a' ESCAPE '' 
+} {1 {ESCAPE expression must be a single character}}
+do_catchsql_test e_expr-14.6.3 { SELECT 'A' LIKE 'a' ESCAPE 'x' }    {0 1}
+do_catchsql_test e_expr-14.6.4 "SELECT 'A' LIKE 'a' ESCAPE '\u00e6'" {0 1}
+
+# EVIDENCE-OF: R-02045-23762 This character may be used in the LIKE
+# pattern to include literal percent or underscore characters.
+#
+# EVIDENCE-OF: R-13345-31830 The escape character followed by a percent
+# symbol (%), underscore (_), or a second instance of the escape
+# character itself matches a literal percent symbol, underscore, or a
+# single escape character, respectively.
+#
+do_execsql_test e_expr-14.7.1  { SELECT 'abc%'  LIKE 'abcX%' ESCAPE 'X' } 1
+do_execsql_test e_expr-14.7.2  { SELECT 'abc5'  LIKE 'abcX%' ESCAPE 'X' } 0
+do_execsql_test e_expr-14.7.3  { SELECT 'abc'   LIKE 'abcX%' ESCAPE 'X' } 0
+do_execsql_test e_expr-14.7.4  { SELECT 'abcX%' LIKE 'abcX%' ESCAPE 'X' } 0
+do_execsql_test e_expr-14.7.5  { SELECT 'abc%%' LIKE 'abcX%' ESCAPE 'X' } 0
+
+do_execsql_test e_expr-14.7.6  { SELECT 'abc_'  LIKE 'abcX_' ESCAPE 'X' } 1
+do_execsql_test e_expr-14.7.7  { SELECT 'abc5'  LIKE 'abcX_' ESCAPE 'X' } 0
+do_execsql_test e_expr-14.7.8  { SELECT 'abc'   LIKE 'abcX_' ESCAPE 'X' } 0
+do_execsql_test e_expr-14.7.9  { SELECT 'abcX_' LIKE 'abcX_' ESCAPE 'X' } 0
+do_execsql_test e_expr-14.7.10 { SELECT 'abc__' LIKE 'abcX_' ESCAPE 'X' } 0
+
+do_execsql_test e_expr-14.7.11 { SELECT 'abcX'  LIKE 'abcXX' ESCAPE 'X' } 1
+do_execsql_test e_expr-14.7.12 { SELECT 'abc5'  LIKE 'abcXX' ESCAPE 'X' } 0
+do_execsql_test e_expr-14.7.13 { SELECT 'abc'   LIKE 'abcXX' ESCAPE 'X' } 0
+do_execsql_test e_expr-14.7.14 { SELECT 'abcXX' LIKE 'abcXX' ESCAPE 'X' } 0
+
+# EVIDENCE-OF: R-51359-17496 The infix LIKE operator is implemented by
+# calling the application-defined SQL functions like(Y,X) or like(Y,X,Z).
+#
+proc likefunc {args} {
+  eval lappend ::likeargs $args
+  return 1
+}
+db func like -argcount 2 likefunc
+db func like -argcount 3 likefunc
+set ::likeargs [list]
+do_execsql_test e_expr-15.1.1 { SELECT 'abc' LIKE 'def' } 1
+do_test         e_expr-15.1.2 { set likeargs } {def abc}
+set ::likeargs [list]
+do_execsql_test e_expr-15.1.3 { SELECT 'abc' LIKE 'def' ESCAPE 'X' } 1
+do_test         e_expr-15.1.4 { set likeargs } {def abc X}
+db close
+sqlite3 db test.db
+
+# EVIDENCE-OF: R-22868-25880 The LIKE operator can be made case
+# sensitive using the case_sensitive_like pragma.
+#
+do_execsql_test e_expr-16.1.1  { SELECT 'abcxyz' LIKE 'ABC%' } 1
+do_execsql_test e_expr-16.1.1b { SELECT 'abc%xyz' LIKE 'ABC\%x%' ESCAPE '\' } 1
+do_execsql_test e_expr-16.1.2  { PRAGMA case_sensitive_like = 1 } {}
+do_execsql_test e_expr-16.1.3  { SELECT 'abcxyz' LIKE 'ABC%' } 0
+do_execsql_test e_expr-16.1.3b { SELECT 'abc%xyz' LIKE 'ABC\%X%' ESCAPE '\' } 0
+do_execsql_test e_expr-16.1.4  { SELECT 'ABCxyz' LIKE 'ABC%' } 1
+do_execsql_test e_expr-16.1.4b { SELECT 'ABC%xyz' LIKE 'ABC\%x%' ESCAPE '\' } 1
+do_execsql_test e_expr-16.1.5  { PRAGMA case_sensitive_like = 0 } {}
+do_execsql_test e_expr-16.1.6  { SELECT 'abcxyz' LIKE 'ABC%' } 1
+do_execsql_test e_expr-16.1.6b { SELECT 'abc%xyz' LIKE 'ABC\%X%' ESCAPE '\' } 1
+do_execsql_test e_expr-16.1.7  { SELECT 'ABCxyz' LIKE 'ABC%' } 1
+do_execsql_test e_expr-16.1.7b { SELECT 'ABC%xyz' LIKE 'ABC\%X%' ESCAPE '\' } 1
+
+# EVIDENCE-OF: R-52087-12043 The GLOB operator is similar to LIKE but
+# uses the Unix file globbing syntax for its wildcards.
+#
+# EVIDENCE-OF: R-09813-17279 Also, GLOB is case sensitive, unlike LIKE.
+#
+do_execsql_test e_expr-17.1.1 { SELECT 'abcxyz' GLOB 'abc%' } 0
+do_execsql_test e_expr-17.1.2 { SELECT 'abcxyz' GLOB 'abc*' } 1
+do_execsql_test e_expr-17.1.3 { SELECT 'abcxyz' GLOB 'abc___' } 0
+do_execsql_test e_expr-17.1.4 { SELECT 'abcxyz' GLOB 'abc???' } 1
+
+do_execsql_test e_expr-17.1.5 { SELECT 'abcxyz' GLOB 'abc*' } 1
+do_execsql_test e_expr-17.1.6 { SELECT 'ABCxyz' GLOB 'abc*' } 0
+do_execsql_test e_expr-17.1.7 { SELECT 'abcxyz' GLOB 'ABC*' } 0
+
+# EVIDENCE-OF: R-39616-20555 Both GLOB and LIKE may be preceded by the
+# NOT keyword to invert the sense of the test.
+#
+do_execsql_test e_expr-17.2.1 { SELECT 'abcxyz' NOT GLOB 'ABC*' } 1
+do_execsql_test e_expr-17.2.2 { SELECT 'abcxyz' NOT GLOB 'abc*' } 0
+do_execsql_test e_expr-17.2.3 { SELECT 'abcxyz' NOT LIKE 'ABC%' } 0
+do_execsql_test e_expr-17.2.4 { SELECT 'abcxyz' NOT LIKE 'abc%' } 0
+do_execsql_test e_expr-17.2.5 { SELECT 'abdxyz' NOT LIKE 'abc%' } 1
+
+db nullvalue null
+do_execsql_test e_expr-17.2.6 { SELECT 'abcxyz' NOT GLOB NULL } null
+do_execsql_test e_expr-17.2.7 { SELECT 'abcxyz' NOT LIKE NULL } null
+do_execsql_test e_expr-17.2.8 { SELECT NULL NOT GLOB 'abc*' } null
+do_execsql_test e_expr-17.2.9 { SELECT NULL NOT LIKE 'ABC%' } null
+db nullvalue {}
+
+# EVIDENCE-OF: R-39414-35489 The infix GLOB operator is implemented by
+# calling the function glob(Y,X) and can be modified by overriding that
+# function.
+proc globfunc {args} {
+  eval lappend ::globargs $args
+  return 1
+}
+db func glob -argcount 2 globfunc
+set ::globargs [list]
+do_execsql_test e_expr-17.3.1 { SELECT 'abc' GLOB 'def' } 1
+do_test         e_expr-17.3.2 { set globargs } {def abc}
+set ::globargs [list]
+do_execsql_test e_expr-17.3.3 { SELECT 'X' NOT GLOB 'Y' } 0
+do_test         e_expr-17.3.4 { set globargs } {Y X}
+sqlite3 db test.db
+
+# EVIDENCE-OF: R-41650-20872 No regexp() user function is defined by
+# default and so use of the REGEXP operator will normally result in an
+# error message.
+#
+#   There is a regexp function if ICU is enabled though.
+#
+ifcapable !icu {
+  do_catchsql_test e_expr-18.1.1 { 
+    SELECT regexp('abc', 'def') 
+  } {1 {no such function: regexp}}
+  do_catchsql_test e_expr-18.1.2 { 
+    SELECT 'abc' REGEXP 'def'
+  } {1 {no such function: REGEXP}}
+}
+
+# EVIDENCE-OF: R-33693-50180 The REGEXP operator is a special syntax for
+# the regexp() user function.
+#
+# EVIDENCE-OF: R-65524-61849 If an application-defined SQL function
+# named "regexp" is added at run-time, then the "X REGEXP Y" operator
+# will be implemented as a call to "regexp(Y,X)".
+#
+proc regexpfunc {args} {
+  eval lappend ::regexpargs $args
+  return 1
+}
+db func regexp -argcount 2 regexpfunc
+set ::regexpargs [list]
+do_execsql_test e_expr-18.2.1 { SELECT 'abc' REGEXP 'def' } 1
+do_test         e_expr-18.2.2 { set regexpargs } {def abc}
+set ::regexpargs [list]
+do_execsql_test e_expr-18.2.3 { SELECT 'X' NOT REGEXP 'Y' } 0
+do_test         e_expr-18.2.4 { set regexpargs } {Y X}
+sqlite3 db test.db
+
+# EVIDENCE-OF: R-42037-37826 The default match() function implementation
+# raises an exception and is not really useful for anything.
+#
+do_catchsql_test e_expr-19.1.1 { 
+  SELECT 'abc' MATCH 'def' 
+} {1 {unable to use function MATCH in the requested context}}
+do_catchsql_test e_expr-19.1.2 { 
+  SELECT match('abc', 'def')
+} {1 {unable to use function MATCH in the requested context}}
+
+# EVIDENCE-OF: R-37916-47407 The MATCH operator is a special syntax for
+# the match() application-defined function.
+#
+# EVIDENCE-OF: R-06021-09373 But extensions can override the match()
+# function with more helpful logic.
+#
+proc matchfunc {args} {
+  eval lappend ::matchargs $args
+  return 1
+}
+db func match -argcount 2 matchfunc
+set ::matchargs [list]
+do_execsql_test e_expr-19.2.1 { SELECT 'abc' MATCH 'def' } 1
+do_test         e_expr-19.2.2 { set matchargs } {def abc}
+set ::matchargs [list]
+do_execsql_test e_expr-19.2.3 { SELECT 'X' NOT MATCH 'Y' } 0
+do_test         e_expr-19.2.4 { set matchargs } {Y X}
+sqlite3 db test.db
+
+#-------------------------------------------------------------------------
+# Test cases for the testable statements related to the CASE expression.
+#
+# EVIDENCE-OF: R-57495-24088 There are two fundamental forms of the CASE
+# expression: those with a base expression and those without.
+#
+do_execsql_test e_expr-20.1 {
+  SELECT CASE WHEN 1 THEN 'true' WHEN 0 THEN 'false' ELSE 'else' END;
+} {true}
+do_execsql_test e_expr-20.2 {
+  SELECT CASE 0 WHEN 1 THEN 'true' WHEN 0 THEN 'false' ELSE 'else' END;
+} {false}
+
+proc var {nm} {
+  lappend ::varlist $nm
+  return [set "::$nm"]
+}
+db func var var
+
+# EVIDENCE-OF: R-30638-59954 In a CASE without a base expression, each
+# WHEN expression is evaluated and the result treated as a boolean,
+# starting with the leftmost and continuing to the right.
+#
+foreach {a b c} {0 0 0} break
+set varlist [list]
+do_execsql_test e_expr-21.1.1 {
+  SELECT CASE WHEN var('a') THEN 'A' 
+              WHEN var('b') THEN 'B' 
+              WHEN var('c') THEN 'C' END
+} {{}}
+do_test e_expr-21.1.2 { set varlist } {a b c}
+set varlist [list]
+do_execsql_test e_expr-21.1.3 {
+  SELECT CASE WHEN var('c') THEN 'C' 
+              WHEN var('b') THEN 'B' 
+              WHEN var('a') THEN 'A' 
+              ELSE 'no result'
+  END
+} {{no result}}
+do_test e_expr-21.1.4 { set varlist } {c b a}
+
+# EVIDENCE-OF: R-39009-25596 The result of the CASE expression is the
+# evaluation of the THEN expression that corresponds to the first WHEN
+# expression that evaluates to true.
+#
+foreach {a b c} {0 1 0} break
+do_execsql_test e_expr-21.2.1 {
+  SELECT CASE WHEN var('a') THEN 'A' 
+              WHEN var('b') THEN 'B' 
+              WHEN var('c') THEN 'C' 
+              ELSE 'no result'
+  END
+} {B}
+foreach {a b c} {0 1 1} break
+do_execsql_test e_expr-21.2.2 {
+  SELECT CASE WHEN var('a') THEN 'A' 
+              WHEN var('b') THEN 'B' 
+              WHEN var('c') THEN 'C'
+              ELSE 'no result'
+  END
+} {B}
+foreach {a b c} {0 0 1} break
+do_execsql_test e_expr-21.2.3 {
+  SELECT CASE WHEN var('a') THEN 'A' 
+              WHEN var('b') THEN 'B' 
+              WHEN var('c') THEN 'C'
+              ELSE 'no result'
+  END
+} {C}
+
+# EVIDENCE-OF: R-24227-04807 Or, if none of the WHEN expressions
+# evaluate to true, the result of evaluating the ELSE expression, if
+# any.
+#
+foreach {a b c} {0 0 0} break
+do_execsql_test e_expr-21.3.1 {
+  SELECT CASE WHEN var('a') THEN 'A' 
+              WHEN var('b') THEN 'B' 
+              WHEN var('c') THEN 'C'
+              ELSE 'no result'
+  END
+} {{no result}}
+
+# EVIDENCE-OF: R-14168-07579 If there is no ELSE expression and none of
+# the WHEN expressions are true, then the overall result is NULL.
+#
+db nullvalue null
+do_execsql_test e_expr-21.3.2 {
+  SELECT CASE WHEN var('a') THEN 'A' 
+              WHEN var('b') THEN 'B' 
+              WHEN var('c') THEN 'C'
+  END
+} {null}
+db nullvalue {}
+
+# EVIDENCE-OF: R-13943-13592 A NULL result is considered untrue when
+# evaluating WHEN terms.
+#
+do_execsql_test e_expr-21.4.1a {
+  SELECT CASE WHEN NULL THEN 'A' WHEN 1 THEN 'B' END, iif(NULL,8,99);
+} {B 99}
+do_execsql_test e_expr-21.4.1b {
+  SELECT CASE WHEN NULL THEN 'A' WHEN 1 THEN 'B' END, if(NULL,8,99);
+} {B 99}
+do_execsql_test e_expr-21.4.2a {
+  SELECT CASE WHEN 0 THEN 'A' WHEN NULL THEN 'B' ELSE 'C' END, iif(0,8,99);
+} {C 99}
+do_execsql_test e_expr-21.4.2b {
+  SELECT CASE WHEN 0 THEN 'A' WHEN NULL THEN 'B' ELSE 'C' END, if(0,8,99);
+} {C 99}
+
+# EVIDENCE-OF: R-38620-19499 In a CASE with a base expression, the base
+# expression is evaluated just once and the result is compared against
+# the evaluation of each WHEN expression from left to right.
+#
+# Note: This test case tests the "evaluated just once" part of the above
+# statement. Tests associated with the next two statements test that the
+# comparisons take place.
+#
+foreach {a b c} [list [expr 3] [expr 4] [expr 5]] break
+set ::varlist [list]
+do_execsql_test e_expr-22.1.1 {
+  SELECT CASE var('a') WHEN 1 THEN 'A' WHEN 2 THEN 'B' WHEN 3 THEN 'C' END
+} {C}
+do_test e_expr-22.1.2 { set ::varlist } {a}
+
+# EVIDENCE-OF: R-07667-49537 The result of the CASE expression is the
+# evaluation of the THEN expression that corresponds to the first WHEN
+# expression for which the comparison is true.
+#
+do_execsql_test e_expr-22.2.1 {
+  SELECT CASE 23 WHEN 1 THEN 'A' WHEN 23 THEN 'B' WHEN 23 THEN 'C' END
+} {B}
+do_execsql_test e_expr-22.2.2 {
+  SELECT CASE 1 WHEN 1 THEN 'A' WHEN 23 THEN 'B' WHEN 23 THEN 'C' END
+} {A}
+
+# EVIDENCE-OF: R-47543-32145 Or, if none of the WHEN expressions
+# evaluate to a value equal to the base expression, the result of
+# evaluating the ELSE expression, if any.
+#
+do_execsql_test e_expr-22.3.1 {
+  SELECT CASE 24 WHEN 1 THEN 'A' WHEN 23 THEN 'B' WHEN 23 THEN 'C' ELSE 'D' END
+} {D}
+
+# EVIDENCE-OF: R-54721-48557 If there is no ELSE expression and none of
+# the WHEN expressions produce a result equal to the base expression,
+# the overall result is NULL.
+#
+do_execsql_test e_expr-22.4.1 {
+  SELECT CASE 24 WHEN 1 THEN 'A' WHEN 23 THEN 'B' WHEN 23 THEN 'C' END
+} {{}}
+db nullvalue null
+do_execsql_test e_expr-22.4.2 {
+  SELECT CASE 24 WHEN 1 THEN 'A' WHEN 23 THEN 'B' WHEN 23 THEN 'C' END
+} {null}
+db nullvalue {}
+
+# EVIDENCE-OF: R-11479-62774 When comparing a base expression against a
+# WHEN expression, the same collating sequence, affinity, and
+# NULL-handling rules apply as if the base expression and WHEN
+# expression are respectively the left- and right-hand operands of an =
+# operator.
+#
+proc rev {str} {
+  set ret ""
+  set chars [split $str]
+  for {set i [expr [llength $chars]-1]} {$i>=0} {incr i -1} {
+    append ret [lindex $chars $i]
+  }
+  set ret
+}
+proc reverse {lhs rhs} {
+  string compare [rev $lhs] [rev $rhs]
+}
+db collate reverse reverse
+do_execsql_test e_expr-23.1.1 {
+  CREATE TABLE t1(
+    a TEXT     COLLATE NOCASE,
+    b          COLLATE REVERSE,
+    c INTEGER,
+    d BLOB
+  );
+  INSERT INTO t1 VALUES('abc', 'cba', 55, 34.5);
+} {}
+do_execsql_test e_expr-23.1.2 {
+  SELECT CASE a WHEN 'xyz' THEN 'A' WHEN 'AbC' THEN 'B' END FROM t1
+} {B}
+do_execsql_test e_expr-23.1.3 {
+  SELECT CASE 'AbC' WHEN 'abc' THEN 'A' WHEN a THEN 'B' END FROM t1
+} {B}
+do_execsql_test e_expr-23.1.4 {
+  SELECT CASE a WHEN b THEN 'A' ELSE 'B' END FROM t1
+} {B}
+do_execsql_test e_expr-23.1.5 {
+  SELECT CASE b WHEN a THEN 'A' ELSE 'B' END FROM t1
+} {B}
+do_execsql_test e_expr-23.1.6 {
+  SELECT CASE 55 WHEN '55' THEN 'A' ELSE 'B' END
+} {B}
+do_execsql_test e_expr-23.1.7 {
+  SELECT CASE c WHEN '55' THEN 'A' ELSE 'B' END FROM t1
+} {A}
+do_execsql_test e_expr-23.1.8 {
+  SELECT CASE '34.5' WHEN d THEN 'A' ELSE 'B' END FROM t1
+} {B}
+do_execsql_test e_expr-23.1.9 {
+  SELECT CASE NULL WHEN NULL THEN 'A' ELSE 'B' END
+} {B}
+
+# EVIDENCE-OF: R-37304-39405 If the base expression is NULL then the
+# result of the CASE is always the result of evaluating the ELSE
+# expression if it exists, or NULL if it does not.
+#
+do_execsql_test e_expr-24.1.1 {
+  SELECT CASE NULL WHEN 'abc' THEN 'A' WHEN 'def' THEN 'B' END;
+} {{}}
+do_execsql_test e_expr-24.1.2 {
+  SELECT CASE NULL WHEN 'abc' THEN 'A' WHEN 'def' THEN 'B' ELSE 'C' END;
+} {C}
+
+# EVIDENCE-OF: R-56280-17369 Both forms of the CASE expression use lazy,
+# or short-circuit, evaluation.
+#
+set varlist [list]
+foreach {a b c} {0 1 0} break
+do_execsql_test e_expr-25.1.1 {
+  SELECT CASE WHEN var('a') THEN 'A' 
+              WHEN var('b') THEN 'B' 
+              WHEN var('c') THEN 'C' 
+  END
+} {B}
+do_test e_expr-25.1.2 { set ::varlist } {a b}
+set varlist [list]
+do_execsql_test e_expr-25.1.3 {
+  SELECT CASE '0' WHEN var('a') THEN 'A' 
+                  WHEN var('b') THEN 'B' 
+                  WHEN var('c') THEN 'C' 
+  END
+} {A}
+do_test e_expr-25.1.4 { set ::varlist } {a}
+
+# EVIDENCE-OF: R-34773-62253 The only difference between the following
+# two CASE expressions is that the x expression is evaluated exactly
+# once in the first example but might be evaluated multiple times in the
+# second: CASE x WHEN w1 THEN r1 WHEN w2 THEN r2 ELSE r3 END CASE WHEN
+# x=w1 THEN r1 WHEN x=w2 THEN r2 ELSE r3 END
+#
+proc ceval {x} {
+  incr ::evalcount
+  return $x
+}
+db func ceval ceval
+set ::evalcount 0
+
+do_execsql_test e_expr-26.1.1 {
+  CREATE TABLE t2(x, w1, r1, w2, r2, r3);
+  INSERT INTO t2 VALUES(1, 1, 'R1', 2, 'R2', 'R3');
+  INSERT INTO t2 VALUES(2, 1, 'R1', 2, 'R2', 'R3');
+  INSERT INTO t2 VALUES(3, 1, 'R1', 2, 'R2', 'R3');
+} {}
+do_execsql_test e_expr-26.1.2 {
+  SELECT CASE x WHEN w1 THEN r1 WHEN w2 THEN r2 ELSE r3 END FROM t2
+} {R1 R2 R3}
+do_execsql_test e_expr-26.1.3 {
+  SELECT CASE WHEN x=w1 THEN r1 WHEN x=w2 THEN r2 ELSE r3 END FROM t2
+} {R1 R2 R3}
+
+do_execsql_test e_expr-26.1.4 {
+  SELECT CASE ceval(x) WHEN w1 THEN r1 WHEN w2 THEN r2 ELSE r3 END FROM t2
+} {R1 R2 R3}
+do_test e_expr-26.1.5 { set ::evalcount } {3}
+set ::evalcount 0
+do_execsql_test e_expr-26.1.6 {
+  SELECT CASE 
+    WHEN ceval(x)=w1 THEN r1 
+    WHEN ceval(x)=w2 THEN r2 
+    ELSE r3 END 
+  FROM t2
+} {R1 R2 R3}
+do_test e_expr-26.1.6 { set ::evalcount } {5}
+
+
+#-------------------------------------------------------------------------
+# Test statements related to CAST expressions.
+#
+# EVIDENCE-OF: R-20854-17109 A CAST conversion is similar to the
+# conversion that takes place when a column affinity is applied to a
+# value except that with the CAST operator the conversion always takes
+# place even if the conversion lossy and irreversible, whereas column
+# affinity only changes the data type of a value if the change is
+# lossless and reversible.
+#
+do_execsql_test e_expr-27.1.1 {
+  CREATE TABLE t3(a TEXT, b REAL, c INTEGER);
+  INSERT INTO t3 VALUES(X'555655', '1.23abc', 4.5);
+  SELECT typeof(a), a, typeof(b), b, typeof(c), c FROM t3;
+} {blob UVU text 1.23abc real 4.5}
+do_execsql_test e_expr-27.1.2 {
+  SELECT 
+    typeof(CAST(X'555655' as TEXT)), CAST(X'555655' as TEXT),
+    typeof(CAST('1.23abc' as REAL)), CAST('1.23abc' as REAL),
+    typeof(CAST(4.5 as INTEGER)), CAST(4.5 as INTEGER)
+} {text UVU real 1.23 integer 4}
+
+# EVIDENCE-OF: R-32434-09092 If the value of expr is NULL, then the
+# result of the CAST expression is also NULL.
+#
+do_expr_test e_expr-27.2.1 { CAST(NULL AS integer) } null {}
+do_expr_test e_expr-27.2.2 { CAST(NULL AS text) }    null {}
+do_expr_test e_expr-27.2.3 { CAST(NULL AS blob) }    null {}
+do_expr_test e_expr-27.2.4 { CAST(NULL AS number) }  null {}
+
+# EVIDENCE-OF: R-29283-15561 Otherwise, the storage class of the result
+# is determined by applying the rules for determining column affinity to
+# the type-name.
+#
+# The R-29283-15561 requirement above is demonstrated by all of the 
+# subsequent e_expr-26 tests.
+#
+# EVIDENCE-OF: R-43522-35548 Casting a value to a type-name with no
+# affinity causes the value to be converted into a BLOB.
+#
+do_expr_test e_expr-27.3.1 { CAST('abc' AS blob)       } blob abc
+do_expr_test e_expr-27.3.2 { CAST('def' AS shobblob_x) } blob def
+do_expr_test e_expr-27.3.3 { CAST('ghi' AS abbLOb10)   } blob ghi
+
+# EVIDENCE-OF: R-22956-37754 Casting to a BLOB consists of first casting
+# the value to TEXT in the encoding of the database connection, then
+# interpreting the resulting byte sequence as a BLOB instead of as TEXT.
+#
+do_qexpr_test e_expr-27.4.1 { CAST('ghi' AS blob) } X'676869'
+do_qexpr_test e_expr-27.4.2 { CAST(456 AS blob) }   X'343536'
+do_qexpr_test e_expr-27.4.3 { CAST(1.78 AS blob) }  X'312E3738'
+rename db db2
+sqlite3 db :memory:
+ifcapable {utf16} {
+db eval { PRAGMA encoding = 'utf-16le' }
+do_qexpr_test e_expr-27.4.4 { CAST('ghi' AS blob) } X'670068006900'
+do_qexpr_test e_expr-27.4.5 { CAST(456 AS blob) }   X'340035003600'
+do_qexpr_test e_expr-27.4.6 { CAST(1.78 AS blob) }  X'31002E0037003800'
+}
+db close
+sqlite3 db :memory:
+db eval { PRAGMA encoding = 'utf-16be' }
+ifcapable {utf16} {
+do_qexpr_test e_expr-27.4.7 { CAST('ghi' AS blob) } X'006700680069'
+do_qexpr_test e_expr-27.4.8 { CAST(456 AS blob) }   X'003400350036'
+do_qexpr_test e_expr-27.4.9 { CAST(1.78 AS blob) }  X'0031002E00370038'
+}
+db close
+rename db2 db
+
+# EVIDENCE-OF: R-04207-37981 To cast a BLOB value to TEXT, the sequence
+# of bytes that make up the BLOB is interpreted as text encoded using
+# the database encoding.
+#
+do_expr_test e_expr-28.1.1 { CAST (X'676869' AS text) } text ghi
+do_expr_test e_expr-28.1.2 { CAST (X'670068006900' AS text) } text g
+rename db db2
+sqlite3 db :memory:
+db eval { PRAGMA encoding = 'utf-16le' }
+ifcapable {utf16} {
+do_expr_test e_expr-28.1.3 { CAST (X'676869' AS text) == 'ghi' } integer 0
+do_expr_test e_expr-28.1.4 { CAST (X'670068006900' AS text) } text ghi
+}
+db close
+rename db2 db
+
+# EVIDENCE-OF: R-22235-47006 Casting an INTEGER or REAL value into TEXT
+# renders the value as if via sqlite3_snprintf() except that the
+# resulting TEXT uses the encoding of the database connection.
+#
+do_expr_test e_expr-28.2.1 { CAST (1 AS text)   }     text 1
+do_expr_test e_expr-28.2.2 { CAST (45 AS text)  }     text 45
+do_expr_test e_expr-28.2.3 { CAST (-45 AS text) }     text -45
+do_expr_test e_expr-28.2.4 { CAST (8.8 AS text)    }  text 8.8
+do_expr_test e_expr-28.2.5 { CAST (2.3e+5 AS text) }  text 230000.0
+do_expr_test e_expr-28.2.6 { CAST (-2.3e-5 AS text) } text -2.3e-05
+do_expr_test e_expr-28.2.7 { CAST (0.0 AS text) }     text 0.0
+do_expr_test e_expr-28.2.7 { CAST (0 AS text) }       text 0
+
+# EVIDENCE-OF: R-26346-36443 When casting a BLOB value to a REAL, the
+# value is first converted to TEXT.
+#
+do_expr_test e_expr-29.1.1 { CAST (X'312E3233' AS REAL) } real 1.23
+do_expr_test e_expr-29.1.2 { CAST (X'3233302E30' AS REAL) } real 230.0
+do_expr_test e_expr-29.1.3 { CAST (X'2D392E3837' AS REAL) } real -9.87
+do_expr_test e_expr-29.1.4 { CAST (X'302E30303031' AS REAL) } real 0.0001
+rename db db2
+sqlite3 db :memory:
+ifcapable {utf16} {
+db eval { PRAGMA encoding = 'utf-16le' }
+do_expr_test e_expr-29.1.5 { 
+    CAST (X'31002E0032003300' AS REAL) } real 1.23
+do_expr_test e_expr-29.1.6 { 
+    CAST (X'3200330030002E003000' AS REAL) } real 230.0
+do_expr_test e_expr-29.1.7 { 
+    CAST (X'2D0039002E0038003700' AS REAL) } real -9.87
+do_expr_test e_expr-29.1.8 { 
+    CAST (X'30002E003000300030003100' AS REAL) } real 0.0001
+}
+db close
+rename db2 db
+
+# EVIDENCE-OF: R-54898-34554 When casting a TEXT value to REAL, the
+# longest possible prefix of the value that can be interpreted as a real
+# number is extracted from the TEXT value and the remainder ignored.
+#
+do_expr_test e_expr-29.2.1 { CAST('1.23abcd' AS REAL) } real 1.23
+do_expr_test e_expr-29.2.2 { CAST('1.45.23abcd' AS REAL) } real 1.45
+do_expr_test e_expr-29.2.3 { CAST('-2.12e-01ABC' AS REAL) } real -0.212
+do_expr_test e_expr-29.2.4 { CAST('1 2 3 4' AS REAL) } real 1.0
+
+# EVIDENCE-OF: R-11321-47427 Any leading spaces in the TEXT value are
+# ignored when converging from TEXT to REAL.
+#
+do_expr_test e_expr-29.3.1 { CAST(' 1.23abcd' AS REAL) } real 1.23
+do_expr_test e_expr-29.3.2 { CAST('    1.45.23abcd' AS REAL) } real 1.45
+do_expr_test e_expr-29.3.3 { CAST('   -2.12e-01ABC' AS REAL) } real -0.212
+do_expr_test e_expr-29.3.4 { CAST(' 1 2 3 4' AS REAL) } real 1.0
+
+# EVIDENCE-OF: R-22662-28218 If there is no prefix that can be
+# interpreted as a real number, the result of the conversion is 0.0.
+#
+do_expr_test e_expr-29.4.1 { CAST('' AS REAL) } real 0.0
+do_expr_test e_expr-29.4.2 { CAST('not a number' AS REAL) } real 0.0
+do_expr_test e_expr-29.4.3 { CAST('XXI' AS REAL) } real 0.0
+
+# EVIDENCE-OF: R-21829-14563 When casting a BLOB value to INTEGER, the
+# value is first converted to TEXT.
+#
+do_expr_test e_expr-30.1.1 { CAST(X'313233' AS INTEGER) } integer 123
+do_expr_test e_expr-30.1.2 { CAST(X'2D363738' AS INTEGER) } integer -678
+do_expr_test e_expr-30.1.3 { 
+  CAST(X'31303030303030' AS INTEGER) 
+} integer 1000000
+do_expr_test e_expr-30.1.4 { 
+  CAST(X'2D31313235383939393036383432363234' AS INTEGER) 
+} integer -1125899906842624
+
+rename db db2
+sqlite3 db :memory:
+ifcapable {utf16} {
+execsql { PRAGMA encoding = 'utf-16be' }
+do_expr_test e_expr-30.1.5 { CAST(X'003100320033' AS INTEGER) } integer 123
+do_expr_test e_expr-30.1.6 { CAST(X'002D003600370038' AS INTEGER) } integer -678
+do_expr_test e_expr-30.1.7 { 
+  CAST(X'0031003000300030003000300030' AS INTEGER) 
+} integer 1000000
+do_expr_test e_expr-30.1.8 { 
+  CAST(X'002D0031003100320035003800390039003900300036003800340032003600320034' AS INTEGER) 
+} integer -1125899906842624
+}
+db close
+rename db2 db
+
+# EVIDENCE-OF: R-47612-45842 When casting a TEXT value to INTEGER, the
+# longest possible prefix of the value that can be interpreted as an
+# integer number is extracted from the TEXT value and the remainder
+# ignored.
+#
+do_expr_test e_expr-30.2.1 { CAST('123abcd' AS INT) } integer 123
+do_expr_test e_expr-30.2.2 { CAST('14523abcd' AS INT) } integer 14523
+do_expr_test e_expr-30.2.3 { CAST('-2.12e-01ABC' AS INT) } integer -2
+do_expr_test e_expr-30.2.4 { CAST('1 2 3 4' AS INT) } integer 1
+
+# EVIDENCE-OF: R-34400-33772 Any leading spaces in the TEXT value when
+# converting from TEXT to INTEGER are ignored.
+#
+do_expr_test e_expr-30.3.1 { CAST('   123abcd' AS INT) } integer 123
+do_expr_test e_expr-30.3.2 { CAST('  14523abcd' AS INT) } integer 14523
+do_expr_test e_expr-30.3.3 { CAST(' -2.12e-01ABC' AS INT) } integer -2
+do_expr_test e_expr-30.3.4 { CAST('     1 2 3 4' AS INT) } integer 1
+
+# EVIDENCE-OF: R-43164-44276 If there is no prefix that can be
+# interpreted as an integer number, the result of the conversion is 0.
+#
+do_expr_test e_expr-30.4.1 { CAST('' AS INTEGER) } integer 0
+do_expr_test e_expr-30.4.2 { CAST('not a number' AS INTEGER) } integer 0
+do_expr_test e_expr-30.4.3 { CAST('XXI' AS INTEGER) } integer 0
+
+# EVIDENCE-OF: R-08980-53124 The CAST operator understands decimal
+# integers only &mdash; conversion of hexadecimal integers stops at
+# the "x" in the "0x" prefix of the hexadecimal integer string and thus
+# result of the CAST is always zero.
+do_expr_test e_expr-30.5.1 { CAST('0x1234' AS INTEGER) } integer 0
+do_expr_test e_expr-30.5.2 { CAST('0X1234' AS INTEGER) } integer 0
+
+# EVIDENCE-OF: R-02752-50091 A cast of a REAL value into an INTEGER
+# results in the integer between the REAL value and zero that is closest
+# to the REAL value.
+#
+do_expr_test e_expr-31.1.1 { CAST(3.14159 AS INTEGER) } integer 3
+do_expr_test e_expr-31.1.2 { CAST(1.99999 AS INTEGER) } integer 1
+do_expr_test e_expr-31.1.3 { CAST(-1.99999 AS INTEGER) } integer -1
+do_expr_test e_expr-31.1.4 { CAST(-0.99999 AS INTEGER) } integer 0
+
+# EVIDENCE-OF: R-51517-40824 If a REAL is greater than the greatest
+# possible signed integer (+9223372036854775807) then the result is the
+# greatest possible signed integer and if the REAL is less than the
+# least possible signed integer (-9223372036854775808) then the result
+# is the least possible signed integer.
+#
+do_expr_test e_expr-31.2.1 { CAST(2e+50 AS INT) } integer 9223372036854775807
+do_expr_test e_expr-31.2.2 { CAST(-2e+50 AS INT) } integer -9223372036854775808
+do_expr_test e_expr-31.2.3 { 
+  CAST(-9223372036854775809.0 AS INT)
+} integer -9223372036854775808
+do_expr_test e_expr-31.2.4 { 
+  CAST(9223372036854775809.0 AS INT)
+} integer 9223372036854775807
+
+
+# EVIDENCE-OF: R-55084-10555 Casting a TEXT or BLOB value into NUMERIC
+# yields either an INTEGER or a REAL result.
+#
+# EVIDENCE-OF: R-48945-04866 If the input text looks like an integer
+# (there is no decimal point nor exponent) and the value is small enough
+# to fit in a 64-bit signed integer, then the result will be INTEGER.
+#
+# EVIDENCE-OF: R-47045-23194 Input text that looks like floating point
+# (there is a decimal point and/or an exponent) and the text describes a
+# value that can be losslessly converted back and forth between IEEE 754
+# 64-bit float and a 51-bit signed integer, then the result is INTEGER.
+#
+do_expr_test e_expr-32.1.1 { CAST('45'   AS NUMERIC)  } integer 45
+do_expr_test e_expr-32.1.2 { CAST('45.0' AS NUMERIC)  } integer 45
+do_expr_test e_expr-32.1.3 { CAST('45.2' AS NUMERIC)  } real 45.2
+do_expr_test e_expr-32.1.4 { CAST('11abc' AS NUMERIC) } integer 11
+do_expr_test e_expr-32.1.5 { CAST('11.1abc' AS NUMERIC) } real 11.1
+do_expr_test e_expr-32.1.6 {CAST( '9.223372036e14' AS NUMERIC)} integer  922337203600000
+do_expr_test e_expr-32.1.7 {CAST('-9.223372036e14' AS NUMERIC)} integer -922337203600000
+do_test e_expr-32.1.8 {
+  set expr {CAST( '9.223372036e15' AS NUMERIC)}
+  db eval "SELECT typeof($expr) AS type, printf('%.5e',$expr) AS value"  break;
+  list $type $value
+} {real 9.22337e+15}
+do_test e_expr-32.1.9 {
+  set expr {CAST('-9.223372036e15' AS NUMERIC)}
+  db eval "SELECT typeof($expr) AS type, printf('%.5e',$expr) AS value"  break;
+  list $type $value
+} {real -9.22337e+15}
+
+# EVIDENCE-OF: R-50300-26941 Any text input that describes a value
+# outside the range of a 64-bit signed integer yields a REAL result.
+#
+do_expr_test e_expr-32.1.20 { CAST('9223372036854775807' AS numeric) } \
+   integer 9223372036854775807
+do_expr_test e_expr-32.1.21 { CAST('9223372036854775808' AS numeric) } \
+   real 9.22337203685478e+18
+do_expr_test e_expr-32.1.22 { CAST('-9223372036854775808' AS numeric) } \
+   integer -9223372036854775808
+do_expr_test e_expr-32.1.23 { CAST('-9223372036854775809' AS numeric) } \
+   real -9.22337203685478e+18
+
+# EVIDENCE-OF: R-30347-18702 Casting a REAL or INTEGER value to NUMERIC
+# is a no-op, even if a real value could be losslessly converted to an
+# integer.
+#
+do_expr_test e_expr-32.2.1 { CAST(13.0 AS NUMERIC) } real 13.0
+do_expr_test e_expr-32.2.2 { CAST(13.5 AS NUMERIC) } real 13.5
+
+do_expr_test e_expr-32.2.3 { 
+  CAST(-9223372036854775808 AS NUMERIC)
+} integer -9223372036854775808
+do_expr_test e_expr-32.2.4 { 
+  CAST(9223372036854775807 AS NUMERIC)
+} integer 9223372036854775807
+do_expr_test e_expr-32.2.5 { 
+  CAST('9223372036854775807 ' AS NUMERIC)
+} integer 9223372036854775807
+do_expr_test e_expr-32.2.6 { 
+  CAST('   9223372036854775807   ' AS NUMERIC)
+} integer 9223372036854775807
+do_expr_test e_expr-32.2.7 { 
+  CAST('  ' AS NUMERIC)
+} integer 0
+do_execsql_test e_expr-32.2.8 {
+  WITH t1(x) AS (VALUES
+     ('9000000000000000001'),
+     ('9000000000000000001x'),
+     ('9000000000000000001 '),
+     (' 9000000000000000001 '),
+     (' 9000000000000000001'),
+     (' 9000000000000000001.'),
+     ('9223372036854775807'),
+     ('9223372036854775807 '),
+     ('   9223372036854775807   '),
+     ('9223372036854775808'),
+     ('   9223372036854775808   '),
+     ('9223372036854775807.0'),
+     ('9223372036854775807e+0'),
+     ('-5.0'),
+     ('-5e+0'))
+  SELECT typeof(CAST(x AS NUMERIC)), CAST(x AS NUMERIC)||'' FROM t1;
+} [list \
+ integer 9000000000000000001 \
+ integer 9000000000000000001 \
+ integer 9000000000000000001 \
+ integer 9000000000000000001 \
+ integer 9000000000000000001 \
+ real 9.0e+18 \
+ integer 9223372036854775807 \
+ integer 9223372036854775807 \
+ integer 9223372036854775807 \
+ real 9.22337203685478e+18 \
+ real 9.22337203685478e+18 \
+ real 9.22337203685478e+18 \
+ real 9.22337203685478e+18 \
+ integer -5 \
+ integer -5 \
+]
+
+# EVIDENCE-OF: R-64550-29191 Note that the result from casting any
+# non-BLOB value into a BLOB and the result from casting any BLOB value
+# into a non-BLOB value may be different depending on whether the
+# database encoding is UTF-8, UTF-16be, or UTF-16le.
+#
+ifcapable {utf16} {
+sqlite3 db1 :memory: ; db1 eval { PRAGMA encoding = 'utf-8' }
+sqlite3 db2 :memory: ; db2 eval { PRAGMA encoding = 'utf-16le' }
+sqlite3 db3 :memory: ; db3 eval { PRAGMA encoding = 'utf-16be' }
+foreach {tn castexpr differs} {
+  1 { CAST(123 AS BLOB)    } 1
+  2 { CAST('' AS BLOB)     } 0
+  3 { CAST('abcd' AS BLOB) } 1
+
+  4 { CAST(X'abcd' AS TEXT) } 1
+  5 { CAST(X'' AS TEXT)     } 0
+} {
+  set r1 [db1 eval "SELECT typeof($castexpr), quote($castexpr)"]
+  set r2 [db2 eval "SELECT typeof($castexpr), quote($castexpr)"]
+  set r3 [db3 eval "SELECT typeof($castexpr), quote($castexpr)"]
+
+  if {$differs} {
+    set res [expr {$r1!=$r2 && $r2!=$r3}]
+  } else {
+    set res [expr {$r1==$r2 && $r2==$r3}]
+  }
+
+  do_test e_expr-33.1.$tn {set res} 1
+}
+db1 close
+db2 close
+db3 close
+}
+
+#-------------------------------------------------------------------------
+# Test statements related to the EXISTS and NOT EXISTS operators.
+#
+catch { db close }
+forcedelete test.db
+sqlite3 db test.db
+
+do_execsql_test e_expr-34.1 {
+  CREATE TABLE t1(a, b);
+  INSERT INTO t1 VALUES(1, 2);
+  INSERT INTO t1 VALUES(NULL, 2);
+  INSERT INTO t1 VALUES(1, NULL);
+  INSERT INTO t1 VALUES(NULL, NULL);
+} {}
+
+# EVIDENCE-OF: R-25588-27181 The EXISTS operator always evaluates to one
+# of the integer values 0 and 1.
+#
+# This statement is not tested by itself. Instead, all e_expr-34.* tests 
+# following this point explicitly test that specific invocations of EXISTS
+# return either integer 0 or integer 1.
+#
+
+# EVIDENCE-OF: R-58553-63740 If executing the SELECT statement specified
+# as the right-hand operand of the EXISTS operator would return one or
+# more rows, then the EXISTS operator evaluates to 1.
+#
+foreach {tn expr} {
+    1 { EXISTS ( SELECT a FROM t1 ) }
+    2 { EXISTS ( SELECT b FROM t1 ) }
+    3 { EXISTS ( SELECT 24 ) }
+    4 { EXISTS ( SELECT NULL ) }
+    5 { EXISTS ( SELECT a FROM t1 WHERE a IS NULL ) }
+} {
+  do_expr_test e_expr-34.2.$tn $expr integer 1
+}
+
+# EVIDENCE-OF: R-19673-40972 If executing the SELECT would return no
+# rows at all, then the EXISTS operator evaluates to 0.
+#
+foreach {tn expr} {
+    1 { EXISTS ( SELECT a FROM t1 WHERE 0) }
+    2 { EXISTS ( SELECT b FROM t1 WHERE a = 5) }
+    3 { EXISTS ( SELECT 24 WHERE 0) }
+    4 { EXISTS ( SELECT NULL WHERE 1=2) }
+} {
+  do_expr_test e_expr-34.3.$tn $expr integer 0
+}
+
+# EVIDENCE-OF: R-35109-49139 The number of columns in each row returned
+# by the SELECT statement (if any) and the specific values returned have
+# no effect on the results of the EXISTS operator.
+#
+foreach {tn expr res} {
+    1 { EXISTS ( SELECT * FROM t1 ) }                          1
+    2 { EXISTS ( SELECT *, *, * FROM t1 ) }                    1
+    3 { EXISTS ( SELECT 24, 25 ) }                             1
+    4 { EXISTS ( SELECT NULL, NULL, NULL ) }                   1
+    5 { EXISTS ( SELECT a,b,a||b FROM t1 WHERE a IS NULL ) }   1
+
+    6 { EXISTS ( SELECT a, a FROM t1 WHERE 0) }                0
+    7 { EXISTS ( SELECT b, b, a FROM t1 WHERE a = 5) }         0
+    8 { EXISTS ( SELECT 24, 46, 89 WHERE 0) }                  0
+    9 { EXISTS ( SELECT NULL, NULL WHERE 1=2) }                0
+} {
+  do_expr_test e_expr-34.4.$tn $expr integer $res
+}
+
+# EVIDENCE-OF: R-10645-12439 In particular, rows containing NULL values
+# are not handled any differently from rows without NULL values.
+#
+foreach {tn e1 e2} {
+  1 { EXISTS (SELECT 'not null') }    { EXISTS (SELECT NULL) }
+  2 { EXISTS (SELECT NULL FROM t1) }  { EXISTS (SELECT 'bread' FROM t1) }
+} {
+  set res [db one "SELECT $e1"]
+  do_expr_test e_expr-34.5.${tn}a $e1 integer $res
+  do_expr_test e_expr-34.5.${tn}b $e2 integer $res
+}
+
+#-------------------------------------------------------------------------
+# Test statements related to scalar sub-queries.
+#
+
+catch { db close }
+forcedelete test.db
+sqlite3 db test.db
+do_test e_expr-35.0 {
+  execsql {
+    CREATE TABLE t2(a, b);
+    INSERT INTO t2 VALUES('one', 'two');
+    INSERT INTO t2 VALUES('three', NULL);
+    INSERT INTO t2 VALUES(4, 5.0);
+  }
+} {}
+
+# EVIDENCE-OF: R-43573-23448 A SELECT statement enclosed in parentheses
+# is a subquery.
+#
+# EVIDENCE-OF: R-56294-03966 All types of SELECT statement, including
+# aggregate and compound SELECT queries (queries with keywords like
+# UNION or EXCEPT) are allowed as scalar subqueries.
+#
+do_expr_test e_expr-35.1.1 { (SELECT 35)   } integer 35
+do_expr_test e_expr-35.1.2 { (SELECT NULL) } null {}
+
+do_expr_test e_expr-35.1.3 { (SELECT count(*) FROM t2) } integer 3
+do_expr_test e_expr-35.1.4 { (SELECT 4 FROM t2) } integer 4
+
+do_expr_test e_expr-35.1.5 { 
+  (SELECT b FROM t2 UNION SELECT a+1 FROM t2)
+} null {}
+do_expr_test e_expr-35.1.6 { 
+  (SELECT a FROM t2 UNION SELECT COALESCE(b, 55) FROM t2 ORDER BY 1)
+} integer 4
+
+# EVIDENCE-OF: R-43101-20178 A subquery that returns two or more columns
+# is a row value subquery and can only be used as an operand of a
+# comparison operator or as the value in an UPDATE SET clause whose
+# column name list has the same size.
+#
+# The following block tests that errors are returned in a bunch of cases
+# where a subquery returns more than one column.
+#
+set M {/1 {sub-select returns [23] columns - expected 1}/}
+foreach {tn sql} {
+  1     { SELECT (SELECT * FROM t2 UNION SELECT a+1, b+1 FROM t2) }
+  2     { SELECT (SELECT * FROM t2 UNION SELECT a+1, b+1 FROM t2 ORDER BY 1) }
+  3     { SELECT (SELECT 1, 2) }
+  4     { SELECT (SELECT NULL, NULL, NULL) }
+  5     { SELECT (SELECT * FROM t2) }
+  6     { SELECT (SELECT * FROM (SELECT 1, 2, 3)) }
+} {
+  do_catchsql_test e_expr-35.2.$tn $sql $M
+}
+
+# EVIDENCE-OF: R-18318-14995 The value of a subquery expression is the
+# first row of the result from the enclosed SELECT statement.
+#
+do_execsql_test e_expr-36.3.1 {
+  CREATE TABLE t4(x, y);
+  INSERT INTO t4 VALUES(1, 'one');
+  INSERT INTO t4 VALUES(2, 'two');
+  INSERT INTO t4 VALUES(3, 'three');
+} {}
+
+foreach {tn expr restype resval} {
+    2  { ( SELECT x FROM t4 ORDER BY x )      }        integer 1
+    3  { ( SELECT x FROM t4 ORDER BY y )      }        integer 1
+    4  { ( SELECT x FROM t4 ORDER BY x DESC ) }        integer 3
+    5  { ( SELECT x FROM t4 ORDER BY y DESC ) }        integer 2
+    6  { ( SELECT y FROM t4 ORDER BY y DESC ) }        text    two
+
+    7  { ( SELECT sum(x) FROM t4 )           }         integer 6
+    8  { ( SELECT string_agg(y,'') FROM t4 ) }       text    onetwothree
+    9  { ( SELECT max(x) FROM t4 WHERE y LIKE '___') } integer 2 
+
+} {
+  do_expr_test e_expr-36.3.$tn $expr $restype $resval
+}
+
+# EVIDENCE-OF: R-52325-25449 The value of a subquery expression is NULL
+# if the enclosed SELECT statement returns no rows.
+#
+foreach {tn expr} {
+    1  { ( SELECT x FROM t4 WHERE x>3 ORDER BY x )      }
+    2  { ( SELECT x FROM t4 WHERE y<'one' ORDER BY y )  }
+} {
+  do_expr_test e_expr-36.4.$tn $expr null {}
+}
+
+# EVIDENCE-OF: R-62477-06476 For example, the values NULL, 0.0, 0,
+# 'english' and '0' are all considered to be false.
+#
+do_execsql_test e_expr-37.1 {
+   SELECT CASE WHEN NULL THEN 'true' ELSE 'false' END, iif(NULL,'true','false');
+} {false false}
+do_execsql_test e_expr-37.2 {
+   SELECT CASE WHEN 0.0 THEN 'true' ELSE 'false' END, iif(0.0,'true','false');
+} {false false}
+do_execsql_test e_expr-37.3 {
+   SELECT CASE WHEN 0 THEN 'true' ELSE 'false' END, iif(0,'true','false');
+} {false false}
+do_execsql_test e_expr-37.4 {
+   SELECT CASE WHEN 'engligh' THEN 'true' ELSE 'false' END, iif('engligh','true','false');
+} {false false}
+do_execsql_test e_expr-37.5 {
+   SELECT CASE WHEN '0' THEN 'true' ELSE 'false' END, iif('0','true','false');
+} {false false}
+
+# EVIDENCE-OF: R-55532-10108 Values 1, 1.0, 0.1, -0.1 and '1english' are
+# considered to be true.
+#
+do_execsql_test e_expr-37.6a {
+   SELECT CASE WHEN 1 THEN 'true' ELSE 'false' END, iif(1,'true','false');
+} {true true}
+do_execsql_test e_expr-37.6b {
+   SELECT CASE WHEN 1 THEN 'true' ELSE 'false' END, if(1,'true');
+} {true true}
+do_execsql_test e_expr-37.7 {
+   SELECT CASE WHEN 1.0 THEN 'true' ELSE 'false' END, iif(1.0,'true','false');
+} {true true}
+do_execsql_test e_expr-37.8 {
+   SELECT CASE WHEN 0.1 THEN 'true' ELSE 'false' END, iif(0.1,'true','false');
+} {true true}
+do_execsql_test e_expr-37.9 {
+   SELECT CASE WHEN -0.1 THEN 'true' ELSE 'false' END, iif(-0.1,'true','false');
+} {true true}
+do_execsql_test e_expr-37.10 {
+   SELECT CASE WHEN '1english' THEN 'true' ELSE 'false' END, iif('1engl','true','false');
+} {true true}
+
+
+finish_test
diff --git a/test/e_fkey.test b/test/e_fkey.test
new file mode 100644
index 0000000000000000000000000000000000000000..3662a39981844d96250a3f2360e0c0e8d80efab7
--- /dev/null
+++ b/test/e_fkey.test
@@ -0,0 +1,3047 @@
+# 2009 October 7
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements tests to verify the "testable statements" in the
+# foreignkeys.in document.
+#
+# The tests in this file are arranged to mirror the structure of 
+# foreignkey.in, with one exception: The statements in section 2, which 
+# deals with enabling/disabling foreign key support, is tested first,
+# before section 1. This is because some statements in section 2 deal
+# with builds that do not include complete foreign key support (because
+# either SQLITE_OMIT_TRIGGER or SQLITE_OMIT_FOREIGN_KEY was defined
+# at build time).
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+proc eqp {sql {db db}} { 
+  uplevel [subst -nocommands {
+    set eqpres [list]
+    $db eval "$sql" {
+      lappend eqpres [set detail]
+    }
+    set eqpres
+  }]
+}
+
+proc do_detail_test {tn sql res} {
+  set normalres [list {*}$res]
+  uplevel [subst -nocommands {
+    do_test $tn {
+      eqp { $sql }
+    } {$normalres}
+  }]
+}
+
+###########################################################################
+### SECTION 2: Enabling Foreign Key Support
+###########################################################################
+
+#-------------------------------------------------------------------------
+# EVIDENCE-OF: R-37672-59189 In order to use foreign key constraints in
+# SQLite, the library must be compiled with neither
+# SQLITE_OMIT_FOREIGN_KEY nor SQLITE_OMIT_TRIGGER defined.
+#
+ifcapable trigger&&foreignkey {
+  do_test e_fkey-1 {
+    execsql {
+      PRAGMA foreign_keys = ON;
+      CREATE TABLE p(i PRIMARY KEY);
+      CREATE TABLE c(j REFERENCES p ON UPDATE CASCADE);
+      INSERT INTO p VALUES('hello');
+      INSERT INTO c VALUES('hello');
+      UPDATE p SET i = 'world';
+      SELECT * FROM c;
+    }
+  } {world}
+}
+
+#-------------------------------------------------------------------------
+# Test the effects of defining OMIT_TRIGGER but not OMIT_FOREIGN_KEY.
+#
+# EVIDENCE-OF: R-10109-20452 If SQLITE_OMIT_TRIGGER is defined but
+# SQLITE_OMIT_FOREIGN_KEY is not, then SQLite behaves as it did prior to
+# version 3.6.19 (2009-10-14) - foreign key definitions are parsed and
+# may be queried using PRAGMA foreign_key_list, but foreign key
+# constraints are not enforced.
+#
+# Specifically, test that "PRAGMA foreign_keys" is a no-op in this case.
+# When using the pragma to query the current setting, 0 rows are returned.
+#
+# EVIDENCE-OF: R-22567-44039 The PRAGMA foreign_keys command is a no-op
+# in this configuration.
+#
+# EVIDENCE-OF: R-41784-13339 Tip: If the command "PRAGMA foreign_keys"
+# returns no data instead of a single row containing "0" or "1", then
+# the version of SQLite you are using does not support foreign keys
+# (either because it is older than 3.6.19 or because it was compiled
+# with SQLITE_OMIT_FOREIGN_KEY or SQLITE_OMIT_TRIGGER defined).
+#
+reset_db
+ifcapable !trigger&&foreignkey {
+  do_test e_fkey-2.1 {
+    execsql {
+      PRAGMA foreign_keys = ON;
+      CREATE TABLE p(i PRIMARY KEY);
+      CREATE TABLE c(j REFERENCES p ON UPDATE CASCADE);
+      INSERT INTO p VALUES('hello');
+      INSERT INTO c VALUES('hello');
+      UPDATE p SET i = 'world';
+      SELECT * FROM c;
+    }
+  } {hello}
+  do_test e_fkey-2.2 {
+    execsql { PRAGMA foreign_key_list(c) }
+  } {0 0 p j {} CASCADE {NO ACTION} NONE}
+  do_test e_fkey-2.3 {
+    execsql { PRAGMA foreign_keys }
+  } {}
+}
+
+
+#-------------------------------------------------------------------------
+# Test the effects of defining OMIT_FOREIGN_KEY.
+#
+# EVIDENCE-OF: R-58428-36660 If OMIT_FOREIGN_KEY is defined, then
+# foreign key definitions cannot even be parsed (attempting to specify a
+# foreign key definition is a syntax error).
+#
+# Specifically, test that foreign key constraints cannot even be parsed 
+# in such a build.
+#
+reset_db
+ifcapable !foreignkey {
+  do_test e_fkey-3.1 {
+    execsql { CREATE TABLE p(i PRIMARY KEY) }
+    catchsql { CREATE TABLE c(j REFERENCES p ON UPDATE CASCADE) }
+  } {1 {near "ON": syntax error}}
+  do_test e_fkey-3.2 {
+    # This is allowed, as in this build, "REFERENCES" is not a keyword.
+    # The declared datatype of column j is "REFERENCES p".
+    execsql { CREATE TABLE c(j REFERENCES p) }
+  } {}
+  do_test e_fkey-3.3 {
+    execsql { PRAGMA table_info(c) }
+  } {0 j {REFERENCES p} 0 {} 0}
+  do_test e_fkey-3.4 {
+    execsql { PRAGMA foreign_key_list(c) }
+  } {}
+  do_test e_fkey-3.5 {
+    execsql { PRAGMA foreign_keys }
+  } {}
+}
+
+ifcapable !foreignkey||!trigger { finish_test ; return }
+reset_db
+
+
+#-------------------------------------------------------------------------
+# EVIDENCE-OF: R-07280-60510 Assuming the library is compiled with
+# foreign key constraints enabled, it must still be enabled by the
+# application at runtime, using the PRAGMA foreign_keys command.
+#
+# This also tests that foreign key constraints are disabled by default.
+#
+# EVIDENCE-OF: R-44261-39702 Foreign key constraints are disabled by
+# default (for backwards compatibility), so must be enabled separately
+# for each database connection.
+#
+drop_all_tables
+do_test e_fkey-4.1 {
+  execsql {
+    CREATE TABLE p(i PRIMARY KEY);
+    CREATE TABLE c(j REFERENCES p ON UPDATE CASCADE);
+    INSERT INTO p VALUES('hello');
+    INSERT INTO c VALUES('hello');
+    UPDATE p SET i = 'world';
+    SELECT * FROM c;
+  } 
+} {hello}
+do_test e_fkey-4.2 {
+  execsql {
+    DELETE FROM c;
+    DELETE FROM p;
+    PRAGMA foreign_keys = ON;
+    INSERT INTO p VALUES('hello');
+    INSERT INTO c VALUES('hello');
+    UPDATE p SET i = 'world';
+    SELECT * FROM c;
+  } 
+} {world}
+
+#-------------------------------------------------------------------------
+# EVIDENCE-OF: R-08013-37737 The application can also use a PRAGMA
+# foreign_keys statement to determine if foreign keys are currently
+# enabled.
+
+#
+# This also tests the example code in section 2 of foreignkeys.in.
+#
+# EVIDENCE-OF: R-11255-19907
+# 
+reset_db
+do_test e_fkey-5.1 {
+  execsql { PRAGMA foreign_keys }
+} {0}
+do_test e_fkey-5.2 {
+  execsql { 
+    PRAGMA foreign_keys = ON;
+    PRAGMA foreign_keys;
+  }
+} {1}
+do_test e_fkey-5.3 {
+  execsql { 
+    PRAGMA foreign_keys = OFF;
+    PRAGMA foreign_keys;
+  }
+} {0}
+
+#-------------------------------------------------------------------------
+# Test that it is not possible to enable or disable foreign key support
+# while not in auto-commit mode.
+#
+# EVIDENCE-OF: R-46649-58537 It is not possible to enable or disable
+# foreign key constraints in the middle of a multi-statement transaction
+# (when SQLite is not in autocommit mode). Attempting to do so does not
+# return an error; it simply has no effect.
+#
+reset_db
+do_test e_fkey-6.1 {
+  execsql {
+    PRAGMA foreign_keys = ON;
+    CREATE TABLE t1(a UNIQUE, b);
+    CREATE TABLE t2(c, d REFERENCES t1(a));
+    INSERT INTO t1 VALUES(1, 2);
+    INSERT INTO t2 VALUES(2, 1);
+    BEGIN;
+      PRAGMA foreign_keys = OFF;
+  }
+  catchsql {
+      DELETE FROM t1
+  }
+} {1 {FOREIGN KEY constraint failed}}
+do_test e_fkey-6.2 {
+  execsql { PRAGMA foreign_keys }
+} {1}
+do_test e_fkey-6.3 {
+  execsql {
+    COMMIT;
+    PRAGMA foreign_keys = OFF;
+    BEGIN;
+      PRAGMA foreign_keys = ON;
+      DELETE FROM t1;
+      PRAGMA foreign_keys;
+  }
+} {0}
+do_test e_fkey-6.4 {
+  execsql COMMIT
+} {}
+
+###########################################################################
+### SECTION 1: Introduction to Foreign Key Constraints
+###########################################################################
+execsql "PRAGMA foreign_keys = ON"
+
+#-------------------------------------------------------------------------
+# Verify that the syntax in the first example in section 1 is valid.
+#
+# EVIDENCE-OF: R-04042-24825 To do so, a foreign key definition may be
+# added by modifying the declaration of the track table to the
+# following: CREATE TABLE track( trackid INTEGER, trackname TEXT,
+# trackartist INTEGER, FOREIGN KEY(trackartist) REFERENCES
+# artist(artistid) );
+#
+do_test e_fkey-7.1 {
+  execsql {
+    CREATE TABLE artist(
+      artistid    INTEGER PRIMARY KEY, 
+      artistname  TEXT
+    );
+    CREATE TABLE track(
+      trackid     INTEGER, 
+      trackname   TEXT, 
+      trackartist INTEGER,
+      FOREIGN KEY(trackartist) REFERENCES artist(artistid)
+    );
+  }
+} {}
+
+#-------------------------------------------------------------------------
+# EVIDENCE-OF: R-61362-32087 Attempting to insert a row into the track
+# table that does not correspond to any row in the artist table will
+# fail,
+#
+do_test e_fkey-8.1 {
+  catchsql { INSERT INTO track VALUES(1, 'track 1', 1) }
+} {1 {FOREIGN KEY constraint failed}}
+do_test e_fkey-8.2 {
+  execsql { INSERT INTO artist VALUES(2, 'artist 1') }
+  catchsql { INSERT INTO track VALUES(1, 'track 1', 1) }
+} {1 {FOREIGN KEY constraint failed}}
+do_test e_fkey-8.2 {
+  execsql { INSERT INTO track VALUES(1, 'track 1', 2) }
+} {}
+
+#-------------------------------------------------------------------------
+# Attempting to delete a row from the 'artist' table while there are 
+# dependent rows in the track table also fails.
+#
+# EVIDENCE-OF: R-24401-52400 as will attempting to delete a row from the
+# artist table when there exist dependent rows in the track table
+#
+do_test e_fkey-9.1 {
+  catchsql { DELETE FROM artist WHERE artistid = 2 }
+} {1 {FOREIGN KEY constraint failed}}
+do_test e_fkey-9.2 {
+  execsql { 
+    DELETE FROM track WHERE trackartist = 2;
+    DELETE FROM artist WHERE artistid = 2;
+  }
+} {}
+
+#-------------------------------------------------------------------------
+# If the foreign key column (trackartist) in table 'track' is set to NULL,
+# there is no requirement for a matching row in the 'artist' table.
+#
+# EVIDENCE-OF: R-23980-48859 There is one exception: if the foreign key
+# column in the track table is NULL, then no corresponding entry in the
+# artist table is required.
+#
+do_test e_fkey-10.1 {
+  execsql {
+    INSERT INTO track VALUES(1, 'track 1', NULL);
+    INSERT INTO track VALUES(2, 'track 2', NULL);
+  }
+} {}
+do_test e_fkey-10.2 {
+  execsql { SELECT * FROM artist }
+} {}
+do_test e_fkey-10.3 {
+  # Setting the trackid to a non-NULL value fails, of course.
+  catchsql { UPDATE track SET trackartist = 5 WHERE trackid = 1 }
+} {1 {FOREIGN KEY constraint failed}}
+do_test e_fkey-10.4 {
+  execsql {
+    INSERT INTO artist VALUES(5, 'artist 5');
+    UPDATE track SET trackartist = 5 WHERE trackid = 1;
+  }
+  catchsql { DELETE FROM artist WHERE artistid = 5}
+} {1 {FOREIGN KEY constraint failed}}
+do_test e_fkey-10.5 {
+  execsql { 
+    UPDATE track SET trackartist = NULL WHERE trackid = 1;
+    DELETE FROM artist WHERE artistid = 5;
+  }
+} {}
+
+#-------------------------------------------------------------------------
+# Test that the following is true fo all rows in the track table:
+#
+#   trackartist IS NULL OR 
+#   EXISTS(SELECT 1 FROM artist WHERE artistid=trackartist)
+#
+# EVIDENCE-OF: R-52486-21352 Expressed in SQL, this means that for every
+# row in the track table, the following expression evaluates to true:
+# trackartist IS NULL OR EXISTS(SELECT 1 FROM artist WHERE
+# artistid=trackartist)
+
+# This procedure executes a test case to check that statement 
+# R-52486-21352 is true after executing the SQL statement passed.
+# as the second argument.
+proc test_r52486_21352 {tn sql} {
+  set res [catchsql $sql]
+  set results {
+    {0 {}} 
+    {1 {UNIQUE constraint failed: artist.artistid}} 
+    {1 {FOREIGN KEY constraint failed}}
+  }
+  if {[lsearch $results $res]<0} {
+    error $res
+  }
+
+  do_test e_fkey-11.$tn {
+    execsql {
+      SELECT count(*) FROM track WHERE NOT (
+        trackartist IS NULL OR 
+        EXISTS(SELECT 1 FROM artist WHERE artistid=trackartist)
+      )
+    }
+  } {0}
+}
+
+# Execute a series of random INSERT, UPDATE and DELETE operations
+# (some of which may fail due to FK or PK constraint violations) on 
+# the two tables in the example schema. Test that R-52486-21352
+# is true after executing each operation.
+#
+set Template {
+  {INSERT INTO track VALUES($t, 'track $t', $a)}
+  {DELETE FROM track WHERE trackid = $t}
+  {UPDATE track SET trackartist = $a WHERE trackid = $t}
+  {INSERT INTO artist VALUES($a, 'artist $a')}
+  {DELETE FROM artist WHERE artistid = $a}
+  {UPDATE artist SET artistid = $a2 WHERE artistid = $a}
+}
+for {set i 0} {$i < 500} {incr i} {
+  set a   [expr int(rand()*10)]
+  set a2  [expr int(rand()*10)]
+  set t   [expr int(rand()*50)]
+  set sql [subst [lindex $Template [expr int(rand()*6)]]]
+
+  test_r52486_21352 $i $sql
+}
+
+#-------------------------------------------------------------------------
+# Check that a NOT NULL constraint can be added to the example schema
+# to prohibit NULL child keys from being inserted.
+#
+# EVIDENCE-OF: R-42412-59321 Tip: If the application requires a stricter
+# relationship between artist and track, where NULL values are not
+# permitted in the trackartist column, simply add the appropriate "NOT
+# NULL" constraint to the schema.
+#
+drop_all_tables
+do_test e_fkey-12.1 {
+  execsql {
+    CREATE TABLE artist(
+      artistid    INTEGER PRIMARY KEY, 
+      artistname  TEXT
+    );
+    CREATE TABLE track(
+      trackid     INTEGER, 
+      trackname   TEXT, 
+      trackartist INTEGER NOT NULL,
+      FOREIGN KEY(trackartist) REFERENCES artist(artistid)
+    );
+  }
+} {}
+do_test e_fkey-12.2 {
+  catchsql { INSERT INTO track VALUES(14, 'Mr. Bojangles', NULL) }
+} {1 {NOT NULL constraint failed: track.trackartist}}
+
+#-------------------------------------------------------------------------
+# EVIDENCE-OF: R-16127-35442
+#
+# Test an example from foreignkeys.html.
+#
+drop_all_tables
+do_test e_fkey-13.1 {
+  execsql {
+    CREATE TABLE artist(
+      artistid    INTEGER PRIMARY KEY, 
+      artistname  TEXT
+    );
+    CREATE TABLE track(
+      trackid     INTEGER, 
+      trackname   TEXT, 
+      trackartist INTEGER,
+      FOREIGN KEY(trackartist) REFERENCES artist(artistid)
+    );
+    INSERT INTO artist VALUES(1, 'Dean Martin');
+    INSERT INTO artist VALUES(2, 'Frank Sinatra');
+    INSERT INTO track VALUES(11, 'That''s Amore', 1);
+    INSERT INTO track VALUES(12, 'Christmas Blues', 1);
+    INSERT INTO track VALUES(13, 'My Way', 2);
+  }
+} {}
+do_test e_fkey-13.2 {
+  catchsql { INSERT INTO track VALUES(14, 'Mr. Bojangles', 3) }
+} {1 {FOREIGN KEY constraint failed}}
+do_test e_fkey-13.3 {
+  execsql { INSERT INTO track VALUES(14, 'Mr. Bojangles', NULL) }
+} {}
+do_test e_fkey-13.4 {
+  catchsql { 
+    UPDATE track SET trackartist = 3 WHERE trackname = 'Mr. Bojangles';
+  }
+} {1 {FOREIGN KEY constraint failed}}
+do_test e_fkey-13.5 {
+  execsql {
+    INSERT INTO artist VALUES(3, 'Sammy Davis Jr.');
+    UPDATE track SET trackartist = 3 WHERE trackname = 'Mr. Bojangles';
+    INSERT INTO track VALUES(15, 'Boogie Woogie', 3);
+  }
+} {}
+
+#-------------------------------------------------------------------------
+# EVIDENCE-OF: R-15958-50233
+#
+# Test the second example from the first section of foreignkeys.html.
+#
+do_test e_fkey-14.1 {
+  catchsql {
+    DELETE FROM artist WHERE artistname = 'Frank Sinatra';
+  }
+} {1 {FOREIGN KEY constraint failed}}
+do_test e_fkey-14.2 {
+  execsql {
+    DELETE FROM track WHERE trackname = 'My Way';
+    DELETE FROM artist WHERE artistname = 'Frank Sinatra';
+  }
+} {}
+do_test e_fkey-14.3 {
+  catchsql {
+    UPDATE artist SET artistid=4 WHERE artistname = 'Dean Martin';
+  }
+} {1 {FOREIGN KEY constraint failed}}
+do_test e_fkey-14.4 {
+  execsql {
+    DELETE FROM track WHERE trackname IN('That''s Amore', 'Christmas Blues');
+    UPDATE artist SET artistid=4 WHERE artistname = 'Dean Martin';
+  }
+} {}
+
+
+#-------------------------------------------------------------------------
+# EVIDENCE-OF: R-56032-24923 The foreign key constraint is satisfied if
+# for each row in the child table either one or more of the child key
+# columns are NULL, or there exists a row in the parent table for which
+# each parent key column contains a value equal to the value in its
+# associated child key column.
+#
+# Test also that the usual comparison rules are used when testing if there 
+# is a matching row in the parent table of a foreign key constraint.
+#
+# EVIDENCE-OF: R-57765-12380 In the above paragraph, the term "equal"
+# means equal when values are compared using the rules specified here.
+#
+drop_all_tables
+do_test e_fkey-15.1 {
+  execsql {
+    CREATE TABLE par(p PRIMARY KEY);
+    CREATE TABLE chi(c REFERENCES par);
+
+    INSERT INTO par VALUES(1);
+    INSERT INTO par VALUES('1');
+    INSERT INTO par VALUES(X'31');
+    SELECT typeof(p) FROM par;
+  }
+} {integer text blob}
+
+proc test_efkey_45 {tn isError sql} {
+  do_test e_fkey-15.$tn.1 "
+    catchsql {$sql}
+  " [lindex {{0 {}} {1 {FOREIGN KEY constraint failed}}} $isError]
+
+  do_test e_fkey-15.$tn.2 {
+    execsql {
+      SELECT * FROM chi WHERE c IS NOT NULL AND c NOT IN (SELECT p FROM par)
+    }
+  } {}
+}
+
+test_efkey_45 1 0 "INSERT INTO chi VALUES(1)"
+test_efkey_45 2 1 "INSERT INTO chi VALUES('1.0')"
+test_efkey_45 3 0 "INSERT INTO chi VALUES('1')"
+test_efkey_45 4 1 "DELETE FROM par WHERE p = '1'"
+test_efkey_45 5 0 "DELETE FROM chi WHERE c = '1'"
+test_efkey_45 6 0 "DELETE FROM par WHERE p = '1'"
+test_efkey_45 7 1 "INSERT INTO chi VALUES('1')"
+test_efkey_45 8 0 "INSERT INTO chi VALUES(X'31')"
+test_efkey_45 9 1 "INSERT INTO chi VALUES(X'32')"
+
+#-------------------------------------------------------------------------
+# Specifically, test that when comparing child and parent key values the
+# default collation sequence of the parent key column is used.
+#
+# EVIDENCE-OF: R-15796-47513 When comparing text values, the collating
+# sequence associated with the parent key column is always used.
+#
+drop_all_tables
+do_test e_fkey-16.1 {
+  execsql {
+    CREATE TABLE t1(a COLLATE nocase PRIMARY KEY);
+    CREATE TABLE t2(b REFERENCES t1);
+  }
+} {}
+do_test e_fkey-16.2 {
+  execsql {
+    INSERT INTO t1 VALUES('oNe');
+    INSERT INTO t2 VALUES('one');
+    INSERT INTO t2 VALUES('ONE');
+    UPDATE t2 SET b = 'OnE';
+    UPDATE t1 SET a = 'ONE';
+  }
+} {}
+do_test e_fkey-16.3 {
+  catchsql { UPDATE t2 SET b = 'two' WHERE rowid = 1 }
+} {1 {FOREIGN KEY constraint failed}}
+do_test e_fkey-16.4 {
+  catchsql { DELETE FROM t1 WHERE rowid = 1 }
+} {1 {FOREIGN KEY constraint failed}}
+
+#-------------------------------------------------------------------------
+# Specifically, test that when comparing child and parent key values the
+# affinity of the parent key column is applied to the child key value
+# before the comparison takes place.
+#
+# EVIDENCE-OF: R-04240-13860 When comparing values, if the parent key
+# column has an affinity, then that affinity is applied to the child key
+# value before the comparison is performed.
+#
+drop_all_tables
+do_test e_fkey-17.1 {
+  execsql {
+    CREATE TABLE t1(a NUMERIC PRIMARY KEY);
+    CREATE TABLE t2(b TEXT REFERENCES t1);
+  }
+} {}
+do_test e_fkey-17.2 {
+  execsql {
+    INSERT INTO t1 VALUES(1);
+    INSERT INTO t1 VALUES(2);
+    INSERT INTO t1 VALUES('three');
+    INSERT INTO t2 VALUES('2.0');
+    SELECT b, typeof(b) FROM t2;
+  }
+} {2.0 text}
+do_test e_fkey-17.3 {
+  execsql { SELECT typeof(a) FROM t1 }
+} {integer integer text}
+do_test e_fkey-17.4 {
+  catchsql { DELETE FROM t1 WHERE rowid = 2 }
+} {1 {FOREIGN KEY constraint failed}}
+
+###########################################################################
+### SECTION 3: Required and Suggested Database Indexes
+###########################################################################
+
+#-------------------------------------------------------------------------
+# A parent key must be either a PRIMARY KEY, subject to a UNIQUE 
+# constraint, or have a UNIQUE index created on it.
+#
+# EVIDENCE-OF: R-13435-26311 Usually, the parent key of a foreign key
+# constraint is the primary key of the parent table. If they are not the
+# primary key, then the parent key columns must be collectively subject
+# to a UNIQUE constraint or have a UNIQUE index.
+# 
+# Also test that if a parent key is not subject to a PRIMARY KEY or UNIQUE
+# constraint, but does have a UNIQUE index created on it, then the UNIQUE index
+# must use the default collation sequences associated with the parent key
+# columns.
+#
+# EVIDENCE-OF: R-00376-39212 If the parent key columns have a UNIQUE
+# index, then that index must use the collation sequences that are
+# specified in the CREATE TABLE statement for the parent table.
+#
+drop_all_tables
+do_test e_fkey-18.1 {
+  execsql {
+    CREATE TABLE t2(a REFERENCES t1(x));
+  }
+} {}
+proc test_efkey_57 {tn isError sql} {
+  catchsql { DROP TABLE t1 }
+  execsql $sql
+  do_test e_fkey-18.$tn {
+    catchsql { INSERT INTO t2 VALUES(NULL) }
+  } [lindex {{0 {}} {/1 {foreign key mismatch - ".*" referencing ".*"}/}} \
+     $isError]
+}
+test_efkey_57 2 0 { CREATE TABLE t1(x PRIMARY KEY) }
+test_efkey_57 3 0 { CREATE TABLE t1(x UNIQUE) }
+test_efkey_57 4 0 { CREATE TABLE t1(x); CREATE UNIQUE INDEX t1i ON t1(x) }
+test_efkey_57 5 1 { 
+  CREATE TABLE t1(x); 
+  CREATE UNIQUE INDEX t1i ON t1(x COLLATE nocase);
+}
+test_efkey_57 6 1 { CREATE TABLE t1(x) }
+test_efkey_57 7 1 { CREATE TABLE t1(x, y, PRIMARY KEY(x, y)) }
+test_efkey_57 8 1 { CREATE TABLE t1(x, y, UNIQUE(x, y)) }
+test_efkey_57 9 1 { 
+  CREATE TABLE t1(x, y); 
+  CREATE UNIQUE INDEX t1i ON t1(x, y);
+}
+
+
+#-------------------------------------------------------------------------
+# This block tests an example in foreignkeys.html. Several testable
+# statements refer to this example, as follows
+#
+# EVIDENCE-OF: R-27484-01467
+#
+# FK Constraints on child1, child2 and child3 are Ok.
+#
+# Problem with FK on child4:
+#
+# EVIDENCE-OF: R-51039-44840 The foreign key declared as part of table
+# child4 is an error because even though the parent key column is
+# indexed, the index is not UNIQUE.
+#
+# Problem with FK on child5:
+#
+# EVIDENCE-OF: R-01060-48788 The foreign key for table child5 is an
+# error because even though the parent key column has a unique index,
+# the index uses a different collating sequence.
+#
+# Problem with FK on child6 and child7:
+#
+# EVIDENCE-OF: R-63088-37469 Tables child6 and child7 are incorrect
+# because while both have UNIQUE indices on their parent keys, the keys
+# are not an exact match to the columns of a single UNIQUE index.
+#
+drop_all_tables
+do_test e_fkey-19.1 {
+  execsql {
+    CREATE TABLE parent(a PRIMARY KEY, b UNIQUE, c, d, e, f);
+    CREATE UNIQUE INDEX i1 ON parent(c, d);
+    CREATE INDEX i2 ON parent(e);
+    CREATE UNIQUE INDEX i3 ON parent(f COLLATE nocase);
+
+    CREATE TABLE child1(f, g REFERENCES parent(a));                       -- Ok
+    CREATE TABLE child2(h, i REFERENCES parent(b));                       -- Ok
+    CREATE TABLE child3(j, k, FOREIGN KEY(j, k) REFERENCES parent(c, d)); -- Ok
+    CREATE TABLE child4(l, m REFERENCES parent(e));                       -- Err
+    CREATE TABLE child5(n, o REFERENCES parent(f));                       -- Err
+    CREATE TABLE child6(p, q, FOREIGN KEY(p,q) REFERENCES parent(b, c));  -- Err
+    CREATE TABLE child7(r REFERENCES parent(c));                          -- Err
+  }
+} {}
+do_test e_fkey-19.2 {
+  execsql {
+    INSERT INTO parent VALUES(1, 2, 3, 4, 5, 6);
+    INSERT INTO child1 VALUES('xxx', 1);
+    INSERT INTO child2 VALUES('xxx', 2);
+    INSERT INTO child3 VALUES(3, 4);
+  }
+} {}
+do_test e_fkey-19.2 {
+  catchsql { INSERT INTO child4 VALUES('xxx', 5) }
+} {1 {foreign key mismatch - "child4" referencing "parent"}}
+do_test e_fkey-19.3 {
+  catchsql { INSERT INTO child5 VALUES('xxx', 6) }
+} {1 {foreign key mismatch - "child5" referencing "parent"}}
+do_test e_fkey-19.4 {
+  catchsql { INSERT INTO child6 VALUES(2, 3) }
+} {1 {foreign key mismatch - "child6" referencing "parent"}}
+do_test e_fkey-19.5 {
+  catchsql { INSERT INTO child7 VALUES(3) }
+} {1 {foreign key mismatch - "child7" referencing "parent"}}
+
+#-------------------------------------------------------------------------
+# Test errors in the database schema that are detected while preparing
+# DML statements. The error text for these messages always matches 
+# either "foreign key mismatch" or "no such table*" (using [string match]).
+#
+# EVIDENCE-OF: R-45488-08504 If the database schema contains foreign key
+# errors that require looking at more than one table definition to
+# identify, then those errors are not detected when the tables are
+# created.
+#
+# EVIDENCE-OF: R-48391-38472 Instead, such errors prevent the
+# application from preparing SQL statements that modify the content of
+# the child or parent tables in ways that use the foreign keys.
+#
+# EVIDENCE-OF: R-03108-63659 The English language error message for
+# foreign key DML errors is usually "foreign key mismatch" but can also
+# be "no such table" if the parent table does not exist.
+#
+# EVIDENCE-OF: R-35763-48267 Foreign key DML errors are reported if: The
+# parent table does not exist, or The parent key columns named in the
+# foreign key constraint do not exist, or The parent key columns named
+# in the foreign key constraint are not the primary key of the parent
+# table and are not subject to a unique constraint using collating
+# sequence specified in the CREATE TABLE, or The child table references
+# the primary key of the parent without specifying the primary key
+# columns and the number of primary key columns in the parent do not
+# match the number of child key columns.
+#
+do_test e_fkey-20.1 {
+  execsql {
+    CREATE TABLE c1(c REFERENCES nosuchtable, d);
+
+    CREATE TABLE p2(a, b, UNIQUE(a, b));
+    CREATE TABLE c2(c, d, FOREIGN KEY(c, d) REFERENCES p2(a, x));
+
+    CREATE TABLE p3(a PRIMARY KEY, b);
+    CREATE TABLE c3(c REFERENCES p3(b), d);
+
+    CREATE TABLE p4(a PRIMARY KEY, b);
+    CREATE UNIQUE INDEX p4i ON p4(b COLLATE nocase);
+    CREATE TABLE c4(c REFERENCES p4(b), d);
+
+    CREATE TABLE p5(a PRIMARY KEY, b COLLATE nocase);
+    CREATE UNIQUE INDEX p5i ON p5(b COLLATE binary);
+    CREATE TABLE c5(c REFERENCES p5(b), d);
+
+    CREATE TABLE p6(a PRIMARY KEY, b);
+    CREATE TABLE c6(c, d, FOREIGN KEY(c, d) REFERENCES p6);
+
+    CREATE TABLE p7(a, b, PRIMARY KEY(a, b));
+    CREATE TABLE c7(c, d REFERENCES p7);
+  }
+} {}
+
+foreach {tn tbl ptbl err} {
+  2 c1 {} "no such table: main.nosuchtable"
+  3 c2 p2 "foreign key mismatch - \"c2\" referencing \"p2\""
+  4 c3 p3 "foreign key mismatch - \"c3\" referencing \"p3\""
+  5 c4 p4 "foreign key mismatch - \"c4\" referencing \"p4\""
+  6 c5 p5 "foreign key mismatch - \"c5\" referencing \"p5\""
+  7 c6 p6 "foreign key mismatch - \"c6\" referencing \"p6\""
+  8 c7 p7 "foreign key mismatch - \"c7\" referencing \"p7\""
+} {
+  do_test e_fkey-20.$tn.1 {
+    catchsql "INSERT INTO $tbl VALUES('a', 'b')"
+  } [list 1 $err]
+  do_test e_fkey-20.$tn.2 {
+    catchsql "UPDATE $tbl SET c = ?, d = ?"
+  } [list 1 $err]
+  do_test e_fkey-20.$tn.3 {
+    catchsql "INSERT INTO $tbl SELECT ?, ?"
+  } [list 1 $err]
+
+  if {$ptbl ne ""} {
+    do_test e_fkey-20.$tn.4 {
+      catchsql "DELETE FROM $ptbl"
+    } [list 1 $err]
+    do_test e_fkey-20.$tn.5 {
+      catchsql "UPDATE $ptbl SET a = ?, b = ?"
+    } [list 1 $err]
+    do_test e_fkey-20.$tn.6 {
+      catchsql "INSERT INTO $ptbl SELECT ?, ?"
+    } [list 1 $err]
+  }
+}
+
+#-------------------------------------------------------------------------
+# EVIDENCE-OF: R-19353-43643
+#
+# Test the example of foreign key mismatch errors caused by implicitly
+# mapping a child key to the primary key of the parent table when the
+# child key consists of a different number of columns to that primary key.
+# 
+drop_all_tables
+do_test e_fkey-21.1 {
+  execsql {
+    CREATE TABLE parent2(a, b, PRIMARY KEY(a,b));
+
+    CREATE TABLE child8(x, y, FOREIGN KEY(x,y) REFERENCES parent2);     -- Ok
+    CREATE TABLE child9(x REFERENCES parent2);                          -- Err
+    CREATE TABLE child10(x,y,z, FOREIGN KEY(x,y,z) REFERENCES parent2); -- Err
+  }
+} {}
+do_test e_fkey-21.2 {
+  execsql {
+    INSERT INTO parent2 VALUES('I', 'II');
+    INSERT INTO child8 VALUES('I', 'II');
+  }
+} {}
+do_test e_fkey-21.3 {
+  catchsql { INSERT INTO child9 VALUES('I') }
+} {1 {foreign key mismatch - "child9" referencing "parent2"}}
+do_test e_fkey-21.4 {
+  catchsql { INSERT INTO child9 VALUES('II') }
+} {1 {foreign key mismatch - "child9" referencing "parent2"}}
+do_test e_fkey-21.5 {
+  catchsql { INSERT INTO child9 VALUES(NULL) }
+} {1 {foreign key mismatch - "child9" referencing "parent2"}}
+do_test e_fkey-21.6 {
+  catchsql { INSERT INTO child10 VALUES('I', 'II', 'III') }
+} {1 {foreign key mismatch - "child10" referencing "parent2"}}
+do_test e_fkey-21.7 {
+  catchsql { INSERT INTO child10 VALUES(1, 2, 3) }
+} {1 {foreign key mismatch - "child10" referencing "parent2"}}
+do_test e_fkey-21.8 {
+  catchsql { INSERT INTO child10 VALUES(NULL, NULL, NULL) }
+} {1 {foreign key mismatch - "child10" referencing "parent2"}}
+
+#-------------------------------------------------------------------------
+# Test errors that are reported when creating the child table. 
+# Specifically:
+#
+#   * different number of child and parent key columns, and
+#   * child columns that do not exist.
+#
+# EVIDENCE-OF: R-23682-59820 By contrast, if foreign key errors can be
+# recognized simply by looking at the definition of the child table and
+# without having to consult the parent table definition, then the CREATE
+# TABLE statement for the child table fails.
+#
+# These errors are reported whether or not FK support is enabled.
+#
+# EVIDENCE-OF: R-33883-28833 Foreign key DDL errors are reported
+# regardless of whether or not foreign key constraints are enabled when
+# the table is created.
+#
+drop_all_tables
+foreach fk [list OFF ON] {
+  execsql "PRAGMA foreign_keys = $fk"
+  set i 0
+  foreach {sql error} {
+    "CREATE TABLE child1(a, b, FOREIGN KEY(a, b) REFERENCES p(c))"
+      {number of columns in foreign key does not match the number of columns in the referenced table}
+    "CREATE TABLE child2(a, b, FOREIGN KEY(a, b) REFERENCES p(c, d, e))"
+      {number of columns in foreign key does not match the number of columns in the referenced table}
+    "CREATE TABLE child2(a, b, FOREIGN KEY(a, c) REFERENCES p(c, d))"
+      {unknown column "c" in foreign key definition}
+    "CREATE TABLE child2(a, b, FOREIGN KEY(c, b) REFERENCES p(c, d))"
+      {unknown column "c" in foreign key definition}
+  } {
+    do_test e_fkey-22.$fk.[incr i] {
+      catchsql $sql
+    } [list 1 $error]
+  }
+}
+
+#-------------------------------------------------------------------------
+# Test that a REFERENCING clause that does not specify parent key columns
+# implicitly maps to the primary key of the parent table.
+#
+# EVIDENCE-OF: R-43879-08025 Attaching a "REFERENCES <parent-table>"
+# clause to a column definition creates a foreign
+# key constraint that maps the column to the primary key of
+# <parent-table>.
+# 
+do_test e_fkey-23.1 {
+  execsql {
+    CREATE TABLE p1(a, b, PRIMARY KEY(a, b));
+    CREATE TABLE p2(a, b PRIMARY KEY);
+    CREATE TABLE c1(c, d, FOREIGN KEY(c, d) REFERENCES p1);
+    CREATE TABLE c2(a, b REFERENCES p2);
+  }
+} {}
+proc test_efkey_60 {tn isError sql} {
+  do_test e_fkey-23.$tn "
+    catchsql {$sql}
+  " [lindex {{0 {}} {1 {FOREIGN KEY constraint failed}}} $isError]
+}
+
+test_efkey_60 2 1 "INSERT INTO c1 VALUES(239, 231)"
+test_efkey_60 3 0 "INSERT INTO p1 VALUES(239, 231)"
+test_efkey_60 4 0 "INSERT INTO c1 VALUES(239, 231)"
+test_efkey_60 5 1 "INSERT INTO c2 VALUES(239, 231)"
+test_efkey_60 6 0 "INSERT INTO p2 VALUES(239, 231)"
+test_efkey_60 7 0 "INSERT INTO c2 VALUES(239, 231)"
+
+#-------------------------------------------------------------------------
+# Test that an index on on the child key columns of an FK constraint
+# is optional.
+#
+# EVIDENCE-OF: R-15417-28014 Indices are not required for child key
+# columns
+#
+# Also test that if an index is created on the child key columns, it does
+# not make a difference whether or not it is a UNIQUE index.
+#
+# EVIDENCE-OF: R-15741-50893 The child key index does not have to be
+# (and usually will not be) a UNIQUE index.
+#
+drop_all_tables
+do_test e_fkey-24.1 {
+  execsql {
+    CREATE TABLE parent(x, y, UNIQUE(y, x));
+    CREATE TABLE c1(a, b, FOREIGN KEY(a, b) REFERENCES parent(x, y));
+    CREATE TABLE c2(a, b, FOREIGN KEY(a, b) REFERENCES parent(x, y));
+    CREATE TABLE c3(a, b, FOREIGN KEY(a, b) REFERENCES parent(x, y));
+    CREATE INDEX c2i ON c2(a, b);
+    CREATE UNIQUE INDEX c3i ON c2(b, a);
+  }
+} {}
+proc test_efkey_61 {tn isError sql} {
+  do_test e_fkey-24.$tn "
+    catchsql {$sql}
+  " [lindex {{0 {}} {1 {FOREIGN KEY constraint failed}}} $isError]
+}
+foreach {tn c} [list 2 c1 3 c2 4 c3] {
+  test_efkey_61 $tn.1 1 "INSERT INTO $c VALUES(1, 2)"
+  test_efkey_61 $tn.2 0 "INSERT INTO parent VALUES(1, 2)"
+  test_efkey_61 $tn.3 0 "INSERT INTO $c VALUES(1, 2)"
+
+  execsql "DELETE FROM $c ; DELETE FROM parent"
+}
+
+#-------------------------------------------------------------------------
+# EVIDENCE-OF: R-00279-52283
+#
+# Test an example showing that when a row is deleted from the parent 
+# table, the child table is queried for orphaned rows as follows:
+#
+#   SELECT rowid FROM track WHERE trackartist = ?
+#
+# EVIDENCE-OF: R-23302-30956 If this SELECT returns any rows at all,
+# then SQLite concludes that deleting the row from the parent table
+# would violate the foreign key constraint and returns an error.
+#
+do_test e_fkey-25.1 {
+  execsql {
+    CREATE TABLE artist(
+      artistid    INTEGER PRIMARY KEY, 
+      artistname  TEXT
+    );
+    CREATE TABLE track(
+      trackid     INTEGER, 
+      trackname   TEXT, 
+      trackartist INTEGER,
+      FOREIGN KEY(trackartist) REFERENCES artist(artistid)
+    );
+  }
+} {}
+do_detail_test e_fkey-25.2 {
+  PRAGMA foreign_keys = OFF;
+  EXPLAIN QUERY PLAN DELETE FROM artist WHERE 1;
+  EXPLAIN QUERY PLAN SELECT rowid FROM track WHERE trackartist = ?;
+} {
+  {SCAN artist} 
+  {SCAN track}
+}
+do_detail_test e_fkey-25.3 {
+  PRAGMA foreign_keys = ON;
+  EXPLAIN QUERY PLAN DELETE FROM artist WHERE 1;
+} {
+  {SCAN artist} 
+  {SCAN track}
+}
+do_test e_fkey-25.4 {
+  execsql {
+    INSERT INTO artist VALUES(5, 'artist 5');
+    INSERT INTO artist VALUES(6, 'artist 6');
+    INSERT INTO artist VALUES(7, 'artist 7');
+    INSERT INTO track VALUES(1, 'track 1', 5);
+    INSERT INTO track VALUES(2, 'track 2', 6);
+  }
+} {}
+
+do_test e_fkey-25.5 {
+  concat \
+    [execsql { SELECT rowid FROM track WHERE trackartist = 5 }]   \
+    [catchsql { DELETE FROM artist WHERE artistid = 5 }]
+} {1 1 {FOREIGN KEY constraint failed}}
+
+do_test e_fkey-25.6 {
+  concat \
+    [execsql { SELECT rowid FROM track WHERE trackartist = 7 }]   \
+    [catchsql { DELETE FROM artist WHERE artistid = 7 }]
+} {0 {}}
+
+do_test e_fkey-25.7 {
+  concat \
+    [execsql { SELECT rowid FROM track WHERE trackartist = 6 }]   \
+    [catchsql { DELETE FROM artist WHERE artistid = 6 }]
+} {2 1 {FOREIGN KEY constraint failed}}
+
+#-------------------------------------------------------------------------
+# EVIDENCE-OF: R-47936-10044 Or, more generally:
+# SELECT rowid FROM <child-table> WHERE <child-key> = :parent_key_value
+#
+# Test that when a row is deleted from the parent table of an FK 
+# constraint, the child table is queried for orphaned rows. The
+# query is equivalent to:
+#
+#   SELECT rowid FROM <child-table> WHERE <child-key> = :parent_key_value
+#
+# Also test that when a row is inserted into the parent table, or when the 
+# parent key values of an existing row are modified, a query equivalent
+# to the following is planned. In some cases it is not executed, but it
+# is always planned.
+#
+#   SELECT rowid FROM <child-table> WHERE <child-key> = :parent_key_value
+#
+# EVIDENCE-OF: R-61616-46700 Similar queries may be run if the content
+# of the parent key is modified or a new row is inserted into the parent
+# table.
+#
+#
+drop_all_tables
+do_test e_fkey-26.1 {
+  execsql { CREATE TABLE parent(x, y, UNIQUE(y, x)) }
+} {}
+foreach {tn sql} {
+  2 { 
+    CREATE TABLE child(a, b, FOREIGN KEY(a, b) REFERENCES parent(x, y))
+  }
+  3 { 
+    CREATE TABLE child(a, b, FOREIGN KEY(a, b) REFERENCES parent(x, y));
+    CREATE INDEX childi ON child(a, b);
+  }
+  4 { 
+    CREATE TABLE child(a, b, FOREIGN KEY(a, b) REFERENCES parent(x, y));
+    CREATE UNIQUE INDEX childi ON child(b, a);
+  }
+} {
+  execsql $sql
+
+  execsql {PRAGMA foreign_keys = OFF}
+  set delete [concat \
+      [eqp "DELETE FROM parent WHERE 1"] \
+      [eqp "SELECT rowid FROM child WHERE a = ? AND b = ?"]
+  ]
+  set update [concat \
+      [eqp "UPDATE parent SET x=?, y=?"] \
+      [eqp "SELECT rowid FROM child WHERE a = ? AND b = ?"] \
+      [eqp "SELECT rowid FROM child WHERE a = ? AND b = ?"]
+  ]
+  execsql {PRAGMA foreign_keys = ON}
+
+  do_test e_fkey-26.$tn.1 { eqp "DELETE FROM parent WHERE 1" } $delete
+  do_test e_fkey-26.$tn.2 { eqp "UPDATE parent set x=?, y=?" } $update
+
+  execsql {DROP TABLE child}
+}
+
+#-------------------------------------------------------------------------
+# EVIDENCE-OF: R-14553-34013
+#
+# Test the example schema at the end of section 3. Also test that is
+# is "efficient". In this case "efficient" means that foreign key
+# related operations on the parent table do not provoke linear scans.
+#
+drop_all_tables
+do_test e_fkey-27.1 {
+  execsql {
+    CREATE TABLE artist(
+      artistid    INTEGER PRIMARY KEY, 
+      artistname  TEXT
+    );
+    CREATE TABLE track(
+      trackid     INTEGER,
+      trackname   TEXT, 
+      trackartist INTEGER REFERENCES artist
+    );
+    CREATE INDEX trackindex ON track(trackartist);
+  }
+} {}
+do_test e_fkey-27.2 {
+  eqp { INSERT INTO artist VALUES(?, ?) }
+} {}
+do_detail_test e_fkey-27.3 {
+  EXPLAIN QUERY PLAN UPDATE artist SET artistid = ?, artistname = ?
+} {
+  {SCAN artist} 
+  {SEARCH track USING COVERING INDEX trackindex (trackartist=?)} 
+  {SEARCH track USING COVERING INDEX trackindex (trackartist=?)}
+}
+do_detail_test e_fkey-27.4 {
+  EXPLAIN QUERY PLAN DELETE FROM artist
+} {
+  {SCAN artist} 
+  {SEARCH track USING COVERING INDEX trackindex (trackartist=?)}
+}
+
+###########################################################################
+### SECTION 4.1: Composite Foreign Key Constraints
+###########################################################################
+
+#-------------------------------------------------------------------------
+# Check that parent and child keys must have the same number of columns.
+#
+# EVIDENCE-OF: R-41062-34431 Parent and child keys must have the same
+# cardinality.
+#
+foreach {tn sql err} {
+  1 "CREATE TABLE c(jj REFERENCES p(x, y))" 
+    {foreign key on jj should reference only one column of table p}
+
+  2 "CREATE TABLE c(jj REFERENCES p())" {near ")": syntax error}
+
+  3 "CREATE TABLE c(jj, FOREIGN KEY(jj) REFERENCES p(x, y))" 
+    {number of columns in foreign key does not match the number of columns in the referenced table}
+
+  4 "CREATE TABLE c(jj, FOREIGN KEY(jj) REFERENCES p())" 
+    {near ")": syntax error}
+
+  5 "CREATE TABLE c(ii, jj, FOREIGN KEY(jj, ii) REFERENCES p())" 
+    {near ")": syntax error}
+
+  6 "CREATE TABLE c(ii, jj, FOREIGN KEY(jj, ii) REFERENCES p(x))" 
+    {number of columns in foreign key does not match the number of columns in the referenced table}
+
+  7 "CREATE TABLE c(ii, jj, FOREIGN KEY(jj, ii) REFERENCES p(x,y,z))" 
+    {number of columns in foreign key does not match the number of columns in the referenced table}
+} {
+  drop_all_tables
+  do_test e_fkey-28.$tn [list catchsql $sql] [list 1 $err]
+}
+do_test e_fkey-28.8 {
+  drop_all_tables
+  execsql {
+    CREATE TABLE p(x PRIMARY KEY);
+    CREATE TABLE c(a, b, FOREIGN KEY(a,b) REFERENCES p);
+  }
+  catchsql {DELETE FROM p}
+} {1 {foreign key mismatch - "c" referencing "p"}}
+do_test e_fkey-28.9 {
+  drop_all_tables
+  execsql {
+    CREATE TABLE p(x, y, PRIMARY KEY(x,y));
+    CREATE TABLE c(a REFERENCES p);
+  }
+  catchsql {DELETE FROM p}
+} {1 {foreign key mismatch - "c" referencing "p"}}
+
+
+#-------------------------------------------------------------------------
+# EVIDENCE-OF: R-24676-09859
+#
+# Test the example schema in the "Composite Foreign Key Constraints" 
+# section.
+#
+do_test e_fkey-29.1 {
+  execsql {
+    CREATE TABLE album(
+      albumartist TEXT,
+      albumname TEXT,
+      albumcover BINARY,
+      PRIMARY KEY(albumartist, albumname)
+    );
+    CREATE TABLE song(
+      songid INTEGER,
+      songartist TEXT,
+      songalbum TEXT,
+      songname TEXT,
+      FOREIGN KEY(songartist, songalbum) REFERENCES album(albumartist,albumname)
+    );
+  }
+} {}
+
+do_test e_fkey-29.2 {
+  execsql {
+    INSERT INTO album VALUES('Elvis Presley', 'Elvis'' Christmas Album', NULL);
+    INSERT INTO song VALUES(
+      1, 'Elvis Presley', 'Elvis'' Christmas Album', 'Here Comes Santa Clause'
+    );
+  }
+} {}
+do_test e_fkey-29.3 {
+  catchsql {
+    INSERT INTO song VALUES(2, 'Elvis Presley', 'Elvis Is Back!', 'Fever');
+  }
+} {1 {FOREIGN KEY constraint failed}}
+
+
+#-------------------------------------------------------------------------
+# EVIDENCE-OF: R-33626-48418 In SQLite, if any of the child key columns
+# (in this case songartist and songalbum) are NULL, then there is no
+# requirement for a corresponding row in the parent table.
+#
+do_test e_fkey-30.1 {
+  execsql {
+    INSERT INTO song VALUES(2, 'Elvis Presley', NULL, 'Fever');
+    INSERT INTO song VALUES(3, NULL, 'Elvis Is Back', 'Soldier Boy');
+  }
+} {}
+
+###########################################################################
+### SECTION 4.2: Deferred Foreign Key Constraints
+###########################################################################
+
+#-------------------------------------------------------------------------
+# Test that if a statement violates an immediate FK constraint, and the
+# database does not satisfy the FK constraint once all effects of the
+# statement have been applied, an error is reported and the effects of
+# the statement rolled back.
+#
+# EVIDENCE-OF: R-09323-30470 If a statement modifies the contents of the
+# database so that an immediate foreign key constraint is in violation
+# at the conclusion the statement, an exception is thrown and the
+# effects of the statement are reverted.
+#
+drop_all_tables
+do_test e_fkey-31.1 {
+  execsql {
+    CREATE TABLE king(a, b, PRIMARY KEY(a));
+    CREATE TABLE prince(c REFERENCES king, d);
+  }
+} {}
+
+do_test e_fkey-31.2 {
+  # Execute a statement that violates the immediate FK constraint.
+  catchsql { INSERT INTO prince VALUES(1, 2) }
+} {1 {FOREIGN KEY constraint failed}}
+
+do_test e_fkey-31.3 {
+  # This time, use a trigger to fix the constraint violation before the
+  # statement has finished executing. Then execute the same statement as
+  # in the previous test case. This time, no error.
+  execsql {
+    CREATE TRIGGER kt AFTER INSERT ON prince WHEN
+      NOT EXISTS (SELECT a FROM king WHERE a = new.c)
+    BEGIN
+      INSERT INTO king VALUES(new.c, NULL);
+    END
+  }
+  execsql { INSERT INTO prince VALUES(1, 2) }
+} {}
+
+# Test that operating inside a transaction makes no difference to 
+# immediate constraint violation handling.
+do_test e_fkey-31.4 {
+  execsql {
+    BEGIN;
+    INSERT INTO prince VALUES(2, 3);
+    DROP TRIGGER kt;
+  }
+  catchsql { INSERT INTO prince VALUES(3, 4) }
+} {1 {FOREIGN KEY constraint failed}}
+do_test e_fkey-31.5 {
+  execsql {
+    COMMIT;
+    SELECT * FROM king;
+  }
+} {1 {} 2 {}}
+
+#-------------------------------------------------------------------------
+# Test that if a deferred constraint is violated within a transaction,
+# nothing happens immediately and the database is allowed to persist
+# in a state that does not satisfy the FK constraint. However attempts
+# to COMMIT the transaction fail until the FK constraint is satisfied.
+#
+# EVIDENCE-OF: R-49178-21358 By contrast, if a statement modifies the
+# contents of the database such that a deferred foreign key constraint
+# is violated, the violation is not reported immediately.
+#
+# EVIDENCE-OF: R-39692-12488 Deferred foreign key constraints are not
+# checked until the transaction tries to COMMIT.
+#
+# EVIDENCE-OF: R-55147-47664 For as long as the user has an open
+# transaction, the database is allowed to exist in a state that violates
+# any number of deferred foreign key constraints.
+#
+# EVIDENCE-OF: R-29604-30395 However, COMMIT will fail as long as
+# foreign key constraints remain in violation.
+#
+proc test_efkey_34 {tn isError sql} {
+  do_test e_fkey-32.$tn "
+    catchsql {$sql}
+  " [lindex {{0 {}} {1 {FOREIGN KEY constraint failed}}} $isError]
+}
+drop_all_tables
+
+test_efkey_34  1 0 {
+  CREATE TABLE ll(k PRIMARY KEY);
+  CREATE TABLE kk(c REFERENCES ll DEFERRABLE INITIALLY DEFERRED);
+}
+test_efkey_34  2 0 "BEGIN"
+test_efkey_34  3 0   "INSERT INTO kk VALUES(5)"
+test_efkey_34  4 0   "INSERT INTO kk VALUES(10)"
+test_efkey_34  5 1 "COMMIT"
+test_efkey_34  6 0   "INSERT INTO ll VALUES(10)"
+test_efkey_34  7 1 "COMMIT"
+test_efkey_34  8 0   "INSERT INTO ll VALUES(5)"
+test_efkey_34  9 0 "COMMIT"
+
+#-------------------------------------------------------------------------
+# When not running inside a transaction, a deferred constraint is similar
+# to an immediate constraint (violations are reported immediately).
+#
+# EVIDENCE-OF: R-56844-61705 If the current statement is not inside an
+# explicit transaction (a BEGIN/COMMIT/ROLLBACK block), then an implicit
+# transaction is committed as soon as the statement has finished
+# executing. In this case deferred constraints behave the same as
+# immediate constraints.
+#
+drop_all_tables
+proc test_efkey_35 {tn isError sql} {
+  do_test e_fkey-33.$tn "
+    catchsql {$sql}
+  " [lindex {{0 {}} {1 {FOREIGN KEY constraint failed}}} $isError]
+}
+do_test e_fkey-33.1 {
+  execsql {
+    CREATE TABLE parent(x, y);
+    CREATE UNIQUE INDEX pi ON parent(x, y);
+    CREATE TABLE child(a, b,
+      FOREIGN KEY(a, b) REFERENCES parent(x, y) DEFERRABLE INITIALLY DEFERRED
+    );
+  }
+} {}
+test_efkey_35 2 1 "INSERT INTO child  VALUES('x', 'y')"
+test_efkey_35 3 0 "INSERT INTO parent VALUES('x', 'y')"
+test_efkey_35 4 0 "INSERT INTO child  VALUES('x', 'y')"
+
+
+#-------------------------------------------------------------------------
+# EVIDENCE-OF: R-12782-61841
+#
+# Test that an FK constraint is made deferred by adding the following
+# to the definition:
+#
+#   DEFERRABLE INITIALLY DEFERRED
+#
+# EVIDENCE-OF: R-09005-28791
+#
+# Also test that adding any of the following to a foreign key definition 
+# makes the constraint IMMEDIATE:
+#
+#   NOT DEFERRABLE INITIALLY DEFERRED
+#   NOT DEFERRABLE INITIALLY IMMEDIATE
+#   NOT DEFERRABLE
+#   DEFERRABLE INITIALLY IMMEDIATE
+#   DEFERRABLE
+#
+# Foreign keys are IMMEDIATE by default (if there is no DEFERRABLE or NOT
+# DEFERRABLE clause).
+#
+# EVIDENCE-OF: R-35290-16460 Foreign key constraints are immediate by
+# default.
+#
+# EVIDENCE-OF: R-30323-21917 Each foreign key constraint in SQLite is
+# classified as either immediate or deferred.
+#
+drop_all_tables
+do_test e_fkey-34.1 {
+  execsql {
+    CREATE TABLE parent(x, y, z, PRIMARY KEY(x,y,z));
+    CREATE TABLE c1(a, b, c,
+      FOREIGN KEY(a, b, c) REFERENCES parent NOT DEFERRABLE INITIALLY DEFERRED
+    );
+    CREATE TABLE c2(a, b, c,
+      FOREIGN KEY(a, b, c) REFERENCES parent NOT DEFERRABLE INITIALLY IMMEDIATE
+    );
+    CREATE TABLE c3(a, b, c,
+      FOREIGN KEY(a, b, c) REFERENCES parent NOT DEFERRABLE
+    );
+    CREATE TABLE c4(a, b, c,
+      FOREIGN KEY(a, b, c) REFERENCES parent DEFERRABLE INITIALLY IMMEDIATE
+    );
+    CREATE TABLE c5(a, b, c,
+      FOREIGN KEY(a, b, c) REFERENCES parent DEFERRABLE
+    );
+    CREATE TABLE c6(a, b, c, FOREIGN KEY(a, b, c) REFERENCES parent);
+
+    -- This FK constraint is the only deferrable one.
+    CREATE TABLE c7(a, b, c,
+      FOREIGN KEY(a, b, c) REFERENCES parent DEFERRABLE INITIALLY DEFERRED
+    );
+
+    INSERT INTO parent VALUES('a', 'b', 'c');
+    INSERT INTO parent VALUES('d', 'e', 'f');
+    INSERT INTO parent VALUES('g', 'h', 'i');
+    INSERT INTO parent VALUES('j', 'k', 'l');
+    INSERT INTO parent VALUES('m', 'n', 'o');
+    INSERT INTO parent VALUES('p', 'q', 'r');
+    INSERT INTO parent VALUES('s', 't', 'u');
+
+    INSERT INTO c1 VALUES('a', 'b', 'c');
+    INSERT INTO c2 VALUES('d', 'e', 'f');
+    INSERT INTO c3 VALUES('g', 'h', 'i');
+    INSERT INTO c4 VALUES('j', 'k', 'l');
+    INSERT INTO c5 VALUES('m', 'n', 'o');
+    INSERT INTO c6 VALUES('p', 'q', 'r');
+    INSERT INTO c7 VALUES('s', 't', 'u');
+  }
+} {}
+
+proc test_efkey_29 {tn sql isError} {
+  do_test e_fkey-34.$tn "catchsql {$sql}" [
+    lindex {{0 {}} {1 {FOREIGN KEY constraint failed}}} $isError
+  ]
+}
+test_efkey_29  2 "BEGIN"                                   0
+test_efkey_29  3 "DELETE FROM parent WHERE x = 'a'"        1
+test_efkey_29  4 "DELETE FROM parent WHERE x = 'd'"        1
+test_efkey_29  5 "DELETE FROM parent WHERE x = 'g'"        1
+test_efkey_29  6 "DELETE FROM parent WHERE x = 'j'"        1
+test_efkey_29  7 "DELETE FROM parent WHERE x = 'm'"        1
+test_efkey_29  8 "DELETE FROM parent WHERE x = 'p'"        1
+test_efkey_29  9 "DELETE FROM parent WHERE x = 's'"        0
+test_efkey_29 10 "COMMIT"                                  1
+test_efkey_29 11 "ROLLBACK"                                0
+
+test_efkey_29  9 "BEGIN"                                   0
+test_efkey_29 10 "UPDATE parent SET z = 'z' WHERE z = 'c'" 1
+test_efkey_29 11 "UPDATE parent SET z = 'z' WHERE z = 'f'" 1
+test_efkey_29 12 "UPDATE parent SET z = 'z' WHERE z = 'i'" 1
+test_efkey_29 13 "UPDATE parent SET z = 'z' WHERE z = 'l'" 1
+test_efkey_29 14 "UPDATE parent SET z = 'z' WHERE z = 'o'" 1
+test_efkey_29 15 "UPDATE parent SET z = 'z' WHERE z = 'r'" 1
+test_efkey_29 16 "UPDATE parent SET z = 'z' WHERE z = 'u'" 0
+test_efkey_29 17 "COMMIT"                                  1
+test_efkey_29 18 "ROLLBACK"                                0
+
+test_efkey_29 17 "BEGIN"                                   0
+test_efkey_29 18 "INSERT INTO c1 VALUES(1, 2, 3)"          1
+test_efkey_29 19 "INSERT INTO c2 VALUES(1, 2, 3)"          1
+test_efkey_29 20 "INSERT INTO c3 VALUES(1, 2, 3)"          1
+test_efkey_29 21 "INSERT INTO c4 VALUES(1, 2, 3)"          1
+test_efkey_29 22 "INSERT INTO c5 VALUES(1, 2, 3)"          1
+test_efkey_29 22 "INSERT INTO c6 VALUES(1, 2, 3)"          1
+test_efkey_29 22 "INSERT INTO c7 VALUES(1, 2, 3)"          0
+test_efkey_29 23 "COMMIT"                                  1
+test_efkey_29 24 "INSERT INTO parent VALUES(1, 2, 3)"      0
+test_efkey_29 25 "COMMIT"                                  0
+
+test_efkey_29 26 "BEGIN"                                   0
+test_efkey_29 27 "UPDATE c1 SET a = 10"                    1
+test_efkey_29 28 "UPDATE c2 SET a = 10"                    1
+test_efkey_29 29 "UPDATE c3 SET a = 10"                    1
+test_efkey_29 30 "UPDATE c4 SET a = 10"                    1
+test_efkey_29 31 "UPDATE c5 SET a = 10"                    1
+test_efkey_29 31 "UPDATE c6 SET a = 10"                    1
+test_efkey_29 31 "UPDATE c7 SET a = 10"                    0
+test_efkey_29 32 "COMMIT"                                  1
+test_efkey_29 33 "ROLLBACK"                                0
+
+#-------------------------------------------------------------------------
+# EVIDENCE-OF: R-24499-57071
+#
+# Test an example from foreignkeys.html dealing with a deferred foreign 
+# key constraint.
+#
+do_test e_fkey-35.1 {
+  drop_all_tables
+  execsql {
+    CREATE TABLE artist(
+      artistid    INTEGER PRIMARY KEY, 
+      artistname  TEXT
+    );
+    CREATE TABLE track(
+      trackid     INTEGER,
+      trackname   TEXT, 
+      trackartist INTEGER REFERENCES artist(artistid) DEFERRABLE INITIALLY DEFERRED
+    );
+  }
+} {}
+do_test e_fkey-35.2 {
+  execsql {
+    BEGIN;
+      INSERT INTO track VALUES(1, 'White Christmas', 5);
+  }
+  catchsql COMMIT
+} {1 {FOREIGN KEY constraint failed}}
+do_test e_fkey-35.3 {
+  execsql {
+    INSERT INTO artist VALUES(5, 'Bing Crosby');
+    COMMIT;
+  }
+} {}
+
+#-------------------------------------------------------------------------
+# Verify that a nested savepoint may be released without satisfying 
+# deferred foreign key constraints.
+#
+# EVIDENCE-OF: R-07223-48323 A nested savepoint transaction may be
+# RELEASEd while the database is in a state that does not satisfy a
+# deferred foreign key constraint.
+#
+drop_all_tables
+do_test e_fkey-36.1 {
+  execsql {
+    CREATE TABLE t1(a PRIMARY KEY,
+      b REFERENCES t1 DEFERRABLE INITIALLY DEFERRED
+    );
+    INSERT INTO t1 VALUES(1, 1);
+    INSERT INTO t1 VALUES(2, 2);
+    INSERT INTO t1 VALUES(3, 3);
+  }
+} {}
+do_test e_fkey-36.2 {
+  execsql {
+    BEGIN;
+      SAVEPOINT one;
+        INSERT INTO t1 VALUES(4, 5);
+      RELEASE one;
+  }
+} {}
+do_test e_fkey-36.3 {
+  catchsql COMMIT
+} {1 {FOREIGN KEY constraint failed}}
+do_test e_fkey-36.4 {
+  execsql {
+    UPDATE t1 SET a = 5 WHERE a = 4;
+    COMMIT;
+  }
+} {}
+
+
+#-------------------------------------------------------------------------
+# Check that a transaction savepoint (an outermost savepoint opened when
+# the database was in auto-commit mode) cannot be released without
+# satisfying deferred foreign key constraints. It may be rolled back.
+#
+# EVIDENCE-OF: R-44295-13823 A transaction savepoint (a non-nested
+# savepoint that was opened while there was not currently an open
+# transaction), on the other hand, is subject to the same restrictions
+# as a COMMIT - attempting to RELEASE it while the database is in such a
+# state will fail.
+#
+do_test e_fkey-37.1 {
+  execsql {
+    SAVEPOINT one;
+      SAVEPOINT two;
+        INSERT INTO t1 VALUES(6, 7);
+      RELEASE two;
+  }
+} {}
+do_test e_fkey-37.2 {
+  catchsql {RELEASE one}
+} {1 {FOREIGN KEY constraint failed}}
+do_test e_fkey-37.3 {
+  execsql {
+      UPDATE t1 SET a = 7 WHERE a = 6;
+    RELEASE one;
+  }
+} {}
+do_test e_fkey-37.4 {
+  execsql {
+    SAVEPOINT one;
+      SAVEPOINT two;
+        INSERT INTO t1 VALUES(9, 10);
+      RELEASE two;
+  }
+} {}
+do_test e_fkey-37.5 {
+  catchsql {RELEASE one}
+} {1 {FOREIGN KEY constraint failed}}
+do_test e_fkey-37.6 {
+  execsql {ROLLBACK TO one ; RELEASE one}
+} {}
+
+#-------------------------------------------------------------------------
+# Test that if a COMMIT operation fails due to deferred foreign key 
+# constraints, any nested savepoints remain open.
+#
+# EVIDENCE-OF: R-37736-42616 If a COMMIT statement (or the RELEASE of a
+# transaction SAVEPOINT) fails because the database is currently in a
+# state that violates a deferred foreign key constraint and there are
+# currently nested savepoints, the nested savepoints remain open.
+#
+do_test e_fkey-38.1 {
+  execsql {
+    DELETE FROM t1 WHERE a>3;
+    SELECT * FROM t1;
+  }
+} {1 1 2 2 3 3}
+do_test e_fkey-38.2 {
+  execsql {
+    BEGIN;
+      INSERT INTO t1 VALUES(4, 4);
+      SAVEPOINT one;
+        INSERT INTO t1 VALUES(5, 6);
+        SELECT * FROM t1;
+  }
+} {1 1 2 2 3 3 4 4 5 6}
+do_test e_fkey-38.3 {
+  catchsql COMMIT
+} {1 {FOREIGN KEY constraint failed}}
+do_test e_fkey-38.4 {
+  execsql {
+    ROLLBACK TO one;
+    COMMIT;
+    SELECT * FROM t1;
+  }
+} {1 1 2 2 3 3 4 4}
+
+do_test e_fkey-38.5 {
+  execsql {
+    SAVEPOINT a;
+      INSERT INTO t1 VALUES(5, 5);
+      SAVEPOINT b;
+        INSERT INTO t1 VALUES(6, 7);
+        SAVEPOINT c;
+          INSERT INTO t1 VALUES(7, 8);
+  }
+} {}
+do_test e_fkey-38.6 {
+  catchsql {RELEASE a}
+} {1 {FOREIGN KEY constraint failed}}
+do_test e_fkey-38.7 {
+  execsql  {ROLLBACK TO c}
+  catchsql {RELEASE a}
+} {1 {FOREIGN KEY constraint failed}}
+do_test e_fkey-38.8 {
+  execsql  {
+    ROLLBACK TO b;
+    RELEASE a;
+    SELECT * FROM t1;
+  }
+} {1 1 2 2 3 3 4 4 5 5}
+
+###########################################################################
+### SECTION 4.3: ON DELETE and ON UPDATE Actions
+###########################################################################
+
+#-------------------------------------------------------------------------
+# Test that configured ON DELETE and ON UPDATE actions take place when
+# deleting or modifying rows of the parent table, respectively.
+#
+# EVIDENCE-OF: R-48270-44282 Foreign key ON DELETE and ON UPDATE clauses
+# are used to configure actions that take place when deleting rows from
+# the parent table (ON DELETE), or modifying the parent key values of
+# existing rows (ON UPDATE).
+#
+# Test that a single FK constraint may have different actions configured
+# for ON DELETE and ON UPDATE.
+#
+# EVIDENCE-OF: R-48124-63225 A single foreign key constraint may have
+# different actions configured for ON DELETE and ON UPDATE.
+#
+do_test e_fkey-39.1 {
+  execsql {
+    CREATE TABLE p(a, b PRIMARY KEY, c);
+    CREATE TABLE c1(d, e, f DEFAULT 'k0' REFERENCES p 
+      ON UPDATE SET DEFAULT
+      ON DELETE SET NULL
+    );
+
+    INSERT INTO p VALUES(0, 'k0', '');
+    INSERT INTO p VALUES(1, 'k1', 'I');
+    INSERT INTO p VALUES(2, 'k2', 'II');
+    INSERT INTO p VALUES(3, 'k3', 'III');
+
+    INSERT INTO c1 VALUES(1, 'xx', 'k1');
+    INSERT INTO c1 VALUES(2, 'xx', 'k2');
+    INSERT INTO c1 VALUES(3, 'xx', 'k3');
+  }
+} {}
+do_test e_fkey-39.2 {
+  execsql {
+    UPDATE p SET b = 'k4' WHERE a = 1;
+    SELECT * FROM c1;
+  }
+} {1 xx k0 2 xx k2 3 xx k3}
+do_test e_fkey-39.3 {
+  execsql {
+    DELETE FROM p WHERE a = 2;
+    SELECT * FROM c1;
+  }
+} {1 xx k0 2 xx {} 3 xx k3}
+do_test e_fkey-39.4 {
+  execsql {
+    CREATE UNIQUE INDEX pi ON p(c);
+    REPLACE INTO p VALUES(5, 'k5', 'III');
+    SELECT * FROM c1;
+  }
+} {1 xx k0 2 xx {} 3 xx {}}
+
+#-------------------------------------------------------------------------
+# Each foreign key in the system has an ON UPDATE and ON DELETE action,
+# either "NO ACTION", "RESTRICT", "SET NULL", "SET DEFAULT" or "CASCADE".
+#
+# EVIDENCE-OF: R-33326-45252 The ON DELETE and ON UPDATE action
+# associated with each foreign key in an SQLite database is one of "NO
+# ACTION", "RESTRICT", "SET NULL", "SET DEFAULT" or "CASCADE".
+#
+# If none is specified explicitly, "NO ACTION" is the default.
+#
+# EVIDENCE-OF: R-19803-45884 If an action is not explicitly specified,
+# it defaults to "NO ACTION".
+# 
+drop_all_tables
+do_test e_fkey-40.1 {
+  execsql {
+    CREATE TABLE parent(x PRIMARY KEY, y);
+    CREATE TABLE child1(a, 
+      b REFERENCES parent ON UPDATE NO ACTION ON DELETE RESTRICT
+    );
+    CREATE TABLE child2(a, 
+      b REFERENCES parent ON UPDATE RESTRICT ON DELETE SET NULL
+    );
+    CREATE TABLE child3(a, 
+      b REFERENCES parent ON UPDATE SET NULL ON DELETE SET DEFAULT
+    );
+    CREATE TABLE child4(a, 
+      b REFERENCES parent ON UPDATE SET DEFAULT ON DELETE CASCADE
+    );
+
+    -- Create some foreign keys that use the default action - "NO ACTION"
+    CREATE TABLE child5(a, b REFERENCES parent ON UPDATE CASCADE);
+    CREATE TABLE child6(a, b REFERENCES parent ON DELETE RESTRICT);
+    CREATE TABLE child7(a, b REFERENCES parent ON DELETE NO ACTION);
+    CREATE TABLE child8(a, b REFERENCES parent ON UPDATE NO ACTION);
+  }
+} {}
+
+foreach {tn zTab lRes} {
+  2 child1 {0 0 parent b {} {NO ACTION} RESTRICT NONE}
+  3 child2 {0 0 parent b {} RESTRICT {SET NULL} NONE}
+  4 child3 {0 0 parent b {} {SET NULL} {SET DEFAULT} NONE}
+  5 child4 {0 0 parent b {} {SET DEFAULT} CASCADE NONE}
+  6 child5 {0 0 parent b {} CASCADE {NO ACTION} NONE}
+  7 child6 {0 0 parent b {} {NO ACTION} RESTRICT NONE}
+  8 child7 {0 0 parent b {} {NO ACTION} {NO ACTION} NONE}
+  9 child8 {0 0 parent b {} {NO ACTION} {NO ACTION} NONE}
+} {
+  do_test e_fkey-40.$tn { execsql "PRAGMA foreign_key_list($zTab)" } $lRes
+}
+
+#-------------------------------------------------------------------------
+# Test that "NO ACTION" means that nothing happens to a child row when
+# it's parent row is updated or deleted.
+#
+# EVIDENCE-OF: R-19971-54976 Configuring "NO ACTION" means just that:
+# when a parent key is modified or deleted from the database, no special
+# action is taken.
+#
+drop_all_tables
+do_test e_fkey-41.1 {
+  execsql {
+    CREATE TABLE parent(p1, p2, PRIMARY KEY(p1, p2));
+    CREATE TABLE child(c1, c2, 
+      FOREIGN KEY(c1, c2) REFERENCES parent
+      ON UPDATE NO ACTION
+      ON DELETE NO ACTION
+      DEFERRABLE INITIALLY DEFERRED
+    );
+    INSERT INTO parent VALUES('j', 'k');
+    INSERT INTO parent VALUES('l', 'm');
+    INSERT INTO child VALUES('j', 'k');
+    INSERT INTO child VALUES('l', 'm');
+  }
+} {}
+do_test e_fkey-41.2 {
+  execsql {
+    BEGIN;
+      UPDATE parent SET p1='k' WHERE p1='j';
+      DELETE FROM parent WHERE p1='l';
+      SELECT * FROM child;
+  }
+} {j k l m}
+do_test e_fkey-41.3 {
+  catchsql COMMIT
+} {1 {FOREIGN KEY constraint failed}}
+do_test e_fkey-41.4 {
+  execsql ROLLBACK
+} {}
+
+#-------------------------------------------------------------------------
+# Test that "RESTRICT" means the application is prohibited from deleting
+# or updating a parent table row when there exists one or more child keys
+# mapped to it.
+#
+# EVIDENCE-OF: R-04272-38653 The "RESTRICT" action means that the
+# application is prohibited from deleting (for ON DELETE RESTRICT) or
+# modifying (for ON UPDATE RESTRICT) a parent key when there exists one
+# or more child keys mapped to it.
+#
+drop_all_tables
+do_test e_fkey-41.1 {
+  execsql {
+    CREATE TABLE parent(p1, p2);
+    CREATE UNIQUE INDEX parent_i ON parent(p1, p2);
+    CREATE TABLE child1(c1, c2, 
+      FOREIGN KEY(c2, c1) REFERENCES parent(p1, p2) ON DELETE RESTRICT
+    );
+    CREATE TABLE child2(c1, c2, 
+      FOREIGN KEY(c2, c1) REFERENCES parent(p1, p2) ON UPDATE RESTRICT
+    );
+  }
+} {}
+do_test e_fkey-41.2 {
+  execsql {
+    INSERT INTO parent VALUES('a', 'b');
+    INSERT INTO parent VALUES('c', 'd');
+    INSERT INTO child1 VALUES('b', 'a');
+    INSERT INTO child2 VALUES('d', 'c');
+  }
+} {}
+do_test e_fkey-41.3 {
+  catchsql { DELETE FROM parent WHERE p1 = 'a' }
+} {1 {FOREIGN KEY constraint failed}}
+do_test e_fkey-41.4 {
+  catchsql { UPDATE parent SET p2 = 'e' WHERE p1 = 'c' }
+} {1 {FOREIGN KEY constraint failed}}
+
+#-------------------------------------------------------------------------
+# Test that RESTRICT is slightly different from NO ACTION for IMMEDIATE
+# constraints, in that it is enforced immediately, not at the end of the 
+# statement.
+#
+# EVIDENCE-OF: R-37997-42187 The difference between the effect of a
+# RESTRICT action and normal foreign key constraint enforcement is that
+# the RESTRICT action processing happens as soon as the field is updated
+# - not at the end of the current statement as it would with an
+# immediate constraint, or at the end of the current transaction as it
+# would with a deferred constraint.
+#
+drop_all_tables
+do_test e_fkey-42.1 {
+  execsql {
+    CREATE TABLE parent(x PRIMARY KEY);
+    CREATE TABLE child1(c REFERENCES parent ON UPDATE RESTRICT);
+    CREATE TABLE child2(c REFERENCES parent ON UPDATE NO ACTION);
+
+    INSERT INTO parent VALUES('key1');
+    INSERT INTO parent VALUES('key2');
+    INSERT INTO child1 VALUES('key1');
+    INSERT INTO child2 VALUES('key2');
+
+    CREATE TRIGGER parent_t AFTER UPDATE ON parent BEGIN
+      UPDATE child1 set c = new.x WHERE c = old.x;
+      UPDATE child2 set c = new.x WHERE c = old.x;
+    END;
+  }
+} {}
+do_test e_fkey-42.2 {
+  catchsql { UPDATE parent SET x = 'key one' WHERE x = 'key1' }
+} {1 {FOREIGN KEY constraint failed}}
+do_test e_fkey-42.3 {
+  execsql { 
+    UPDATE parent SET x = 'key two' WHERE x = 'key2';
+    SELECT * FROM child2;
+  }
+} {{key two}}
+
+drop_all_tables
+do_test e_fkey-42.4 {
+  execsql {
+    CREATE TABLE parent(x PRIMARY KEY);
+    CREATE TABLE child1(c REFERENCES parent ON DELETE RESTRICT);
+    CREATE TABLE child2(c REFERENCES parent ON DELETE NO ACTION);
+
+    INSERT INTO parent VALUES('key1');
+    INSERT INTO parent VALUES('key2');
+    INSERT INTO child1 VALUES('key1');
+    INSERT INTO child2 VALUES('key2');
+
+    CREATE TRIGGER parent_t AFTER DELETE ON parent BEGIN
+      UPDATE child1 SET c = NULL WHERE c = old.x;
+      UPDATE child2 SET c = NULL WHERE c = old.x;
+    END;
+  }
+} {}
+do_test e_fkey-42.5 {
+  catchsql { DELETE FROM parent WHERE x = 'key1' }
+} {1 {FOREIGN KEY constraint failed}}
+do_test e_fkey-42.6 {
+  execsql { 
+    DELETE FROM parent WHERE x = 'key2';
+    SELECT * FROM child2;
+  }
+} {{}}
+
+drop_all_tables
+do_test e_fkey-42.7 {
+  execsql {
+    CREATE TABLE parent(x PRIMARY KEY);
+    CREATE TABLE child1(c REFERENCES parent ON DELETE RESTRICT);
+    CREATE TABLE child2(c REFERENCES parent ON DELETE NO ACTION);
+
+    INSERT INTO parent VALUES('key1');
+    INSERT INTO parent VALUES('key2');
+    INSERT INTO child1 VALUES('key1');
+    INSERT INTO child2 VALUES('key2');
+  }
+} {}
+do_test e_fkey-42.8 {
+  catchsql { REPLACE INTO parent VALUES('key1') }
+} {1 {FOREIGN KEY constraint failed}}
+do_test e_fkey-42.9 {
+  execsql { 
+    REPLACE INTO parent VALUES('key2');
+    SELECT * FROM child2;
+  }
+} {key2}
+
+#-------------------------------------------------------------------------
+# Test that RESTRICT is enforced immediately, even for a DEFERRED constraint.
+#
+# EVIDENCE-OF: R-24179-60523 Even if the foreign key constraint it is
+# attached to is deferred, configuring a RESTRICT action causes SQLite
+# to return an error immediately if a parent key with dependent child
+# keys is deleted or modified.
+#
+drop_all_tables
+do_test e_fkey-43.1 {
+  execsql {
+    CREATE TABLE parent(x PRIMARY KEY);
+    CREATE TABLE child1(c REFERENCES parent ON UPDATE RESTRICT
+      DEFERRABLE INITIALLY DEFERRED
+    );
+    CREATE TABLE child2(c REFERENCES parent ON UPDATE NO ACTION
+      DEFERRABLE INITIALLY DEFERRED
+    );
+
+    INSERT INTO parent VALUES('key1');
+    INSERT INTO parent VALUES('key2');
+    INSERT INTO child1 VALUES('key1');
+    INSERT INTO child2 VALUES('key2');
+    BEGIN;
+  }
+} {}
+do_test e_fkey-43.2 {
+  catchsql { UPDATE parent SET x = 'key one' WHERE x = 'key1' }
+} {1 {FOREIGN KEY constraint failed}}
+do_test e_fkey-43.3 {
+  execsql { UPDATE parent SET x = 'key two' WHERE x = 'key2' }
+} {}
+do_test e_fkey-43.4 {
+  catchsql COMMIT
+} {1 {FOREIGN KEY constraint failed}}
+do_test e_fkey-43.5 {
+  execsql {
+    UPDATE child2 SET c = 'key two';
+    COMMIT;
+  }
+} {}
+
+drop_all_tables
+do_test e_fkey-43.6 {
+  execsql {
+    CREATE TABLE parent(x PRIMARY KEY);
+    CREATE TABLE child1(c REFERENCES parent ON DELETE RESTRICT
+      DEFERRABLE INITIALLY DEFERRED
+    );
+    CREATE TABLE child2(c REFERENCES parent ON DELETE NO ACTION
+      DEFERRABLE INITIALLY DEFERRED
+    );
+
+    INSERT INTO parent VALUES('key1');
+    INSERT INTO parent VALUES('key2');
+    INSERT INTO child1 VALUES('key1');
+    INSERT INTO child2 VALUES('key2');
+    BEGIN;
+  }
+} {}
+do_test e_fkey-43.7 {
+  catchsql { DELETE FROM parent WHERE x = 'key1' }
+} {1 {FOREIGN KEY constraint failed}}
+do_test e_fkey-43.8 {
+  execsql { DELETE FROM parent WHERE x = 'key2' }
+} {}
+do_test e_fkey-43.9 {
+  catchsql COMMIT
+} {1 {FOREIGN KEY constraint failed}}
+do_test e_fkey-43.10 {
+  execsql {
+    UPDATE child2 SET c = NULL;
+    COMMIT;
+  }
+} {}
+
+#-------------------------------------------------------------------------
+# Test SET NULL actions.
+#
+# EVIDENCE-OF: R-03353-05327 If the configured action is "SET NULL",
+# then when a parent key is deleted (for ON DELETE SET NULL) or modified
+# (for ON UPDATE SET NULL), the child key columns of all rows in the
+# child table that mapped to the parent key are set to contain SQL NULL
+# values.
+#
+drop_all_tables
+do_test e_fkey-44.1 {
+  execsql {
+    CREATE TABLE pA(x PRIMARY KEY);
+    CREATE TABLE cA(c REFERENCES pA ON DELETE SET NULL);
+    CREATE TABLE cB(c REFERENCES pA ON UPDATE SET NULL);
+
+    INSERT INTO pA VALUES(X'ABCD');
+    INSERT INTO pA VALUES(X'1234');
+    INSERT INTO cA VALUES(X'ABCD');
+    INSERT INTO cB VALUES(X'1234');
+  }
+} {}
+do_test e_fkey-44.2 {
+  execsql {
+    DELETE FROM pA WHERE rowid = 1;
+    SELECT quote(x) FROM pA;
+  }
+} {X'1234'}
+do_test e_fkey-44.3 {
+  execsql {
+    SELECT quote(c) FROM cA;
+  }
+} {NULL}
+do_test e_fkey-44.4 {
+  execsql {
+    UPDATE pA SET x = X'8765' WHERE rowid = 2;
+    SELECT quote(x) FROM pA;
+  }
+} {X'8765'}
+do_test e_fkey-44.5 {
+  execsql { SELECT quote(c) FROM cB }
+} {NULL}
+
+#-------------------------------------------------------------------------
+# Test SET DEFAULT actions.
+#
+# EVIDENCE-OF: R-55814-22637 The "SET DEFAULT" actions are similar to
+# "SET NULL", except that each of the child key columns is set to
+# contain the column's default value instead of NULL.
+#
+drop_all_tables
+do_test e_fkey-45.1 {
+  execsql {
+    CREATE TABLE pA(x PRIMARY KEY);
+    CREATE TABLE cA(c DEFAULT X'0000' REFERENCES pA ON DELETE SET DEFAULT);
+    CREATE TABLE cB(c DEFAULT X'9999' REFERENCES pA ON UPDATE SET DEFAULT);
+
+    INSERT INTO pA(rowid, x) VALUES(1, X'0000');
+    INSERT INTO pA(rowid, x) VALUES(2, X'9999');
+    INSERT INTO pA(rowid, x) VALUES(3, X'ABCD');
+    INSERT INTO pA(rowid, x) VALUES(4, X'1234');
+
+    INSERT INTO cA VALUES(X'ABCD');
+    INSERT INTO cB VALUES(X'1234');
+  }
+} {}
+do_test e_fkey-45.2 {
+  execsql {
+    DELETE FROM pA WHERE rowid = 3;
+    SELECT quote(x) FROM pA ORDER BY rowid;
+  }
+} {X'0000' X'9999' X'1234'}
+do_test e_fkey-45.3 {
+  execsql { SELECT quote(c) FROM cA }
+} {X'0000'}
+do_test e_fkey-45.4 {
+  execsql {
+    UPDATE pA SET x = X'8765' WHERE rowid = 4;
+    SELECT quote(x) FROM pA ORDER BY rowid;
+  }
+} {X'0000' X'9999' X'8765'}
+do_test e_fkey-45.5 {
+  execsql { SELECT quote(c) FROM cB }
+} {X'9999'}
+
+#-------------------------------------------------------------------------
+# Test ON DELETE CASCADE actions.
+#
+# EVIDENCE-OF: R-61376-57267 A "CASCADE" action propagates the delete or
+# update operation on the parent key to each dependent child key.
+#
+# EVIDENCE-OF: R-61809-62207 For an "ON DELETE CASCADE" action, this
+# means that each row in the child table that was associated with the
+# deleted parent row is also deleted.
+#
+drop_all_tables
+do_test e_fkey-46.1 {
+  execsql {
+    CREATE TABLE p1(a, b UNIQUE);
+    CREATE TABLE c1(c REFERENCES p1(b) ON DELETE CASCADE, d);
+    INSERT INTO p1 VALUES(NULL, NULL);
+    INSERT INTO p1 VALUES(4, 4);
+    INSERT INTO p1 VALUES(5, 5);
+    INSERT INTO c1 VALUES(NULL, NULL);
+    INSERT INTO c1 VALUES(4, 4);
+    INSERT INTO c1 VALUES(5, 5);
+    SELECT count(*) FROM c1;
+  }
+} {3}
+do_test e_fkey-46.2 {
+  execsql {
+    DELETE FROM p1 WHERE a = 4;
+    SELECT d, c FROM c1;
+  }
+} {{} {} 5 5}
+do_test e_fkey-46.3 {
+  execsql {
+    DELETE FROM p1;
+    SELECT d, c FROM c1;
+  }
+} {{} {}}
+do_test e_fkey-46.4 {
+  execsql { SELECT * FROM p1 }
+} {}
+
+
+#-------------------------------------------------------------------------
+# Test ON UPDATE CASCADE actions.
+#
+# EVIDENCE-OF: R-13877-64542 For an "ON UPDATE CASCADE" action, it means
+# that the values stored in each dependent child key are modified to
+# match the new parent key values.
+#
+# EVIDENCE-OF: R-61376-57267 A "CASCADE" action propagates the delete or
+# update operation on the parent key to each dependent child key.
+#
+drop_all_tables
+do_test e_fkey-47.1 {
+  execsql {
+    CREATE TABLE p1(a, b UNIQUE);
+    CREATE TABLE c1(c REFERENCES p1(b) ON UPDATE CASCADE, d);
+    INSERT INTO p1 VALUES(NULL, NULL);
+    INSERT INTO p1 VALUES(4, 4);
+    INSERT INTO p1 VALUES(5, 5);
+    INSERT INTO c1 VALUES(NULL, NULL);
+    INSERT INTO c1 VALUES(4, 4);
+    INSERT INTO c1 VALUES(5, 5);
+    SELECT count(*) FROM c1;
+  }
+} {3}
+do_test e_fkey-47.2 {
+  execsql {
+    UPDATE p1 SET b = 10 WHERE b = 5;
+    SELECT d, c FROM c1;
+  }
+} {{} {} 4 4 5 10}
+do_test e_fkey-47.3 {
+  execsql {
+    UPDATE p1 SET b = 11 WHERE b = 4;
+    SELECT d, c FROM c1;
+  }
+} {{} {} 4 11 5 10}
+do_test e_fkey-47.4 {
+  execsql { 
+    UPDATE p1 SET b = 6 WHERE b IS NULL;
+    SELECT d, c FROM c1;
+  }
+} {{} {} 4 11 5 10}
+do_test e_fkey-46.5 {
+  execsql { SELECT * FROM p1 }
+} {{} 6 4 11 5 10}
+
+#-------------------------------------------------------------------------
+# EVIDENCE-OF: R-65058-57158
+#
+# Test an example from the "ON DELETE and ON UPDATE Actions" section 
+# of foreignkeys.html.
+#
+drop_all_tables
+do_test e_fkey-48.1 {
+  execsql {
+    CREATE TABLE artist(
+      artistid    INTEGER PRIMARY KEY, 
+      artistname  TEXT
+    );
+    CREATE TABLE track(
+      trackid     INTEGER,
+      trackname   TEXT, 
+      trackartist INTEGER REFERENCES artist(artistid) ON UPDATE CASCADE
+    );
+
+    INSERT INTO artist VALUES(1, 'Dean Martin');
+    INSERT INTO artist VALUES(2, 'Frank Sinatra');
+    INSERT INTO track VALUES(11, 'That''s Amore', 1);
+    INSERT INTO track VALUES(12, 'Christmas Blues', 1);
+    INSERT INTO track VALUES(13, 'My Way', 2);
+  }
+} {}
+do_test e_fkey-48.2 {
+  execsql {
+    UPDATE artist SET artistid = 100 WHERE artistname = 'Dean Martin';
+  }
+} {}
+do_test e_fkey-48.3 {
+  execsql { SELECT * FROM artist }
+} {2 {Frank Sinatra} 100 {Dean Martin}}
+do_test e_fkey-48.4 {
+  execsql { SELECT * FROM track }
+} {11 {That's Amore} 100 12 {Christmas Blues} 100 13 {My Way} 2}
+
+
+#-------------------------------------------------------------------------
+# Verify that adding an FK action does not absolve the user of the 
+# requirement not to violate the foreign key constraint.
+#
+# EVIDENCE-OF: R-53968-51642 Configuring an ON UPDATE or ON DELETE
+# action does not mean that the foreign key constraint does not need to
+# be satisfied.
+#
+drop_all_tables
+do_test e_fkey-49.1 {
+  execsql {
+    CREATE TABLE parent(a COLLATE nocase, b, c, PRIMARY KEY(c, a));
+    CREATE TABLE child(d DEFAULT 'a', e, f DEFAULT 'c',
+      FOREIGN KEY(f, d) REFERENCES parent ON UPDATE SET DEFAULT
+    );
+
+    INSERT INTO parent VALUES('A', 'b', 'c');
+    INSERT INTO parent VALUES('ONE', 'two', 'three');
+    INSERT INTO child VALUES('one', 'two', 'three');
+  }
+} {}
+do_test e_fkey-49.2 {
+  execsql {
+    BEGIN;
+      UPDATE parent SET a = '' WHERE a = 'oNe';
+      SELECT * FROM child;
+  }
+} {a two c}
+do_test e_fkey-49.3 {
+  execsql {
+    ROLLBACK;
+    DELETE FROM parent WHERE a = 'A';
+    SELECT * FROM parent;
+  }
+} {ONE two three}
+do_test e_fkey-49.4 {
+  catchsql { UPDATE parent SET a = '' WHERE a = 'oNe' }
+} {1 {FOREIGN KEY constraint failed}}
+
+
+#-------------------------------------------------------------------------
+# EVIDENCE-OF: R-11856-19836
+#
+# Test an example from the "ON DELETE and ON UPDATE Actions" section 
+# of foreignkeys.html. This example shows that adding an "ON DELETE DEFAULT"
+# clause does not abrogate the need to satisfy the foreign key constraint
+# (R-28220-46694).
+#
+# EVIDENCE-OF: R-28220-46694 For example, if an "ON DELETE SET DEFAULT"
+# action is configured, but there is no row in the parent table that
+# corresponds to the default values of the child key columns, deleting a
+# parent key while dependent child keys exist still causes a foreign key
+# violation.
+#
+drop_all_tables
+do_test e_fkey-50.1 {
+  execsql {
+    CREATE TABLE artist(
+      artistid    INTEGER PRIMARY KEY, 
+      artistname  TEXT
+    );
+    CREATE TABLE track(
+      trackid     INTEGER,
+      trackname   TEXT, 
+      trackartist INTEGER DEFAULT 0 REFERENCES artist(artistid) ON DELETE SET DEFAULT
+    );
+    INSERT INTO artist VALUES(3, 'Sammy Davis Jr.');
+    INSERT INTO track VALUES(14, 'Mr. Bojangles', 3);
+  }
+} {}
+do_test e_fkey-50.2 {
+  catchsql { DELETE FROM artist WHERE artistname = 'Sammy Davis Jr.' }
+} {1 {FOREIGN KEY constraint failed}}
+do_test e_fkey-50.3 {
+  execsql {
+    INSERT INTO artist VALUES(0, 'Unknown Artist');
+    DELETE FROM artist WHERE artistname = 'Sammy Davis Jr.';
+  }
+} {}
+do_test e_fkey-50.4 {
+  execsql { SELECT * FROM artist }
+} {0 {Unknown Artist}}
+do_test e_fkey-50.5 {
+  execsql { SELECT * FROM track }
+} {14 {Mr. Bojangles} 0}
+
+#-------------------------------------------------------------------------
+# EVIDENCE-OF: R-09564-22170
+#
+# Check that the order of steps in an UPDATE or DELETE on a parent 
+# table is as follows:
+#
+#   1. Execute applicable BEFORE trigger programs,
+#   2. Check local (non foreign key) constraints,
+#   3. Update or delete the row in the parent table,
+#   4. Perform any required foreign key actions,
+#   5. Execute applicable AFTER trigger programs. 
+#
+drop_all_tables
+do_test e_fkey-51.1 {
+  proc maxparent {args} { db one {SELECT max(x) FROM parent} }
+  db func maxparent maxparent
+
+  execsql {
+    CREATE TABLE parent(x PRIMARY KEY);
+
+    CREATE TRIGGER bu BEFORE UPDATE ON parent BEGIN
+      INSERT INTO parent VALUES(new.x-old.x);
+    END;
+    CREATE TABLE child(
+      a DEFAULT (maxparent()) REFERENCES parent ON UPDATE SET DEFAULT
+    );
+    CREATE TRIGGER au AFTER UPDATE ON parent BEGIN
+      INSERT INTO parent VALUES(new.x+old.x);
+    END;
+
+    INSERT INTO parent VALUES(1);
+    INSERT INTO child VALUES(1);
+  }
+} {}
+do_test e_fkey-51.2 {
+  execsql {
+    UPDATE parent SET x = 22;
+    SELECT * FROM parent ORDER BY rowid; SELECT 'xxx' ; SELECT a FROM child;
+  }
+} {22 21 23 xxx 22}
+do_test e_fkey-51.3 {
+  execsql {
+    DELETE FROM child;
+    DELETE FROM parent;
+    INSERT INTO parent VALUES(-1);
+    INSERT INTO child VALUES(-1);
+    UPDATE parent SET x = 22;
+    SELECT * FROM parent ORDER BY rowid; SELECT 'xxx' ; SELECT a FROM child;
+  }
+} {22 23 21 xxx 23}
+
+
+#-------------------------------------------------------------------------
+# Verify that ON UPDATE actions only actually take place if the parent key
+# is set to a new value that is distinct from the old value. The default
+# collation sequence and affinity are used to determine if the new value
+# is 'distinct' from the old or not.
+#
+# EVIDENCE-OF: R-27383-10246 An ON UPDATE action is only taken if the
+# values of the parent key are modified so that the new parent key
+# values are not equal to the old.
+#
+drop_all_tables
+do_test e_fkey-52.1 {
+  execsql {
+    CREATE TABLE zeus(a INTEGER COLLATE NOCASE, b, PRIMARY KEY(a, b));
+    CREATE TABLE apollo(c, d, 
+      FOREIGN KEY(c, d) REFERENCES zeus ON UPDATE CASCADE
+    );
+    INSERT INTO zeus VALUES('abc', 'xyz');
+    INSERT INTO apollo VALUES('ABC', 'xyz');
+  }
+  execsql {
+    UPDATE zeus SET a = 'aBc';
+    SELECT * FROM apollo;
+  }
+} {ABC xyz}
+do_test e_fkey-52.2 {
+  execsql {
+    UPDATE zeus SET a = 1, b = 1;
+    SELECT * FROM apollo;
+  }
+} {1 1}
+do_test e_fkey-52.3 {
+  execsql {
+    UPDATE zeus SET a = 1, b = 1;
+    SELECT typeof(c), c, typeof(d), d FROM apollo;
+  }
+} {integer 1 integer 1}
+do_test e_fkey-52.4 {
+  execsql {
+    UPDATE zeus SET a = '1';
+    SELECT typeof(c), c, typeof(d), d FROM apollo;
+  }
+} {integer 1 integer 1}
+do_test e_fkey-52.5 {
+  execsql {
+    UPDATE zeus SET b = '1';
+    SELECT typeof(c), c, typeof(d), d FROM apollo;
+  }
+} {integer 1 text 1}
+do_test e_fkey-52.6 {
+  execsql {
+    UPDATE zeus SET b = NULL;
+    SELECT typeof(c), c, typeof(d), d FROM apollo;
+  }
+} {integer 1 null {}}
+
+#-------------------------------------------------------------------------
+# EVIDENCE-OF: R-35129-58141
+#
+# Test an example from the "ON DELETE and ON UPDATE Actions" section 
+# of foreignkeys.html. This example demonstrates that ON UPDATE actions
+# only take place if at least one parent key column is set to a value 
+# that is distinct from its previous value.
+#
+drop_all_tables
+do_test e_fkey-53.1 {
+  execsql {
+    CREATE TABLE parent(x PRIMARY KEY);
+    CREATE TABLE child(y REFERENCES parent ON UPDATE SET NULL);
+    INSERT INTO parent VALUES('key');
+    INSERT INTO child VALUES('key');
+  }
+} {}
+do_test e_fkey-53.2 {
+  execsql {
+    UPDATE parent SET x = 'key';
+    SELECT IFNULL(y, 'null') FROM child;
+  }
+} {key}
+do_test e_fkey-53.3 {
+  execsql {
+    UPDATE parent SET x = 'key2';
+    SELECT IFNULL(y, 'null') FROM child;
+  }
+} {null}
+
+###########################################################################
+### SECTION 5: CREATE, ALTER and DROP TABLE commands
+###########################################################################
+
+#-------------------------------------------------------------------------
+# Test that parent keys are not checked when tables are created.
+#
+# EVIDENCE-OF: R-36018-21755 The parent key definitions of foreign key
+# constraints are not checked when a table is created.
+#
+# EVIDENCE-OF: R-25384-39337 There is nothing stopping the user from
+# creating a foreign key definition that refers to a parent table that
+# does not exist, or to parent key columns that do not exist or are not
+# collectively bound by a PRIMARY KEY or UNIQUE constraint.
+#
+# Child keys are checked to ensure all component columns exist. If parent
+# key columns are explicitly specified, SQLite checks to make sure there
+# are the same number of columns in the child and parent keys. (TODO: This
+# is tested but does not correspond to any testable statement.)
+#
+# Also test that the above statements are true regardless of whether or not
+# foreign keys are enabled:  "A CREATE TABLE command operates the same whether
+# or not foreign key constraints are enabled."
+#
+# EVIDENCE-OF: R-08908-23439 A CREATE TABLE command operates the same
+# whether or not foreign key constraints are enabled.
+# 
+foreach {tn zCreateTbl lRes} {
+  1 "CREATE TABLE t1(a, b REFERENCES t1)"                            {0 {}}
+  2 "CREATE TABLE t1(a, b REFERENCES t2)"                            {0 {}}
+  3 "CREATE TABLE t1(a, b, FOREIGN KEY(a,b) REFERENCES t1)"          {0 {}}
+  4 "CREATE TABLE t1(a, b, FOREIGN KEY(a,b) REFERENCES t2)"          {0 {}}
+  5 "CREATE TABLE t1(a, b, FOREIGN KEY(a,b) REFERENCES t2)"          {0 {}}
+  6 "CREATE TABLE t1(a, b, FOREIGN KEY(a,b) REFERENCES t2(n,d))"     {0 {}}
+  7 "CREATE TABLE t1(a, b, FOREIGN KEY(a,b) REFERENCES t1(a,b))"     {0 {}}
+
+  A "CREATE TABLE t1(a, b, FOREIGN KEY(c,b) REFERENCES t2)"          
+     {1 {unknown column "c" in foreign key definition}}
+  B "CREATE TABLE t1(a, b, FOREIGN KEY(c,b) REFERENCES t2(d))"          
+     {1 {number of columns in foreign key does not match the number of columns in the referenced table}}
+} {
+  do_test e_fkey-54.$tn.off {
+    drop_all_tables
+    execsql {PRAGMA foreign_keys = OFF}
+    catchsql $zCreateTbl
+  } $lRes
+  do_test e_fkey-54.$tn.on {
+    drop_all_tables
+    execsql {PRAGMA foreign_keys = ON}
+    catchsql $zCreateTbl
+  } $lRes
+}
+
+#-------------------------------------------------------------------------
+# EVIDENCE-OF: R-47952-62498 It is not possible to use the "ALTER TABLE
+# ... ADD COLUMN" syntax to add a column that includes a REFERENCES
+# clause, unless the default value of the new column is NULL. Attempting
+# to do so returns an error.
+#
+proc test_efkey_6 {tn zAlter isError} {
+  drop_all_tables 
+
+  do_test e_fkey-56.$tn.1 "
+    execsql { CREATE TABLE tbl(a, b); INSERT INTO tbl VALUES(1, 2); }
+    [list catchsql $zAlter]
+  " [lindex {{0 {}} {1 {Cannot add a REFERENCES column with non-NULL default value}}} $isError]
+
+}
+
+ifcapable altertable {
+  test_efkey_6 1 "ALTER TABLE tbl ADD COLUMN c REFERENCES xx" 0
+  test_efkey_6 2 "ALTER TABLE tbl ADD COLUMN c DEFAULT NULL REFERENCES xx" 0
+  test_efkey_6 3 "ALTER TABLE tbl ADD COLUMN c DEFAULT 0 REFERENCES xx" 1
+}
+
+#-------------------------------------------------------------------------
+# Test that ALTER TABLE adjusts REFERENCES clauses when the parent table
+# is RENAMED.
+#
+# EVIDENCE-OF: R-47080-02069 If an "ALTER TABLE ... RENAME TO" command
+# is used to rename a table that is the parent table of one or more
+# foreign key constraints, the definitions of the foreign key
+# constraints are modified to refer to the parent table by its new name
+#
+# Test that these adjustments are visible in the sqlite_master table.
+#
+# EVIDENCE-OF: R-43040-62530 The text of the child CREATE TABLE
+# statement or statements stored in the sqlite_schema table are modified
+# to reflect the new parent table name.
+#
+ifcapable altertable {
+do_test e_fkey-56.1 {
+  drop_all_tables
+  execsql {
+    CREATE TABLE 'p 1 "parent one"'(a REFERENCES 'p 1 "parent one"', b, PRIMARY KEY(b));
+
+    CREATE TABLE c1(c, d REFERENCES 'p 1 "parent one"' ON UPDATE CASCADE);
+    CREATE TABLE c2(e, f, FOREIGN KEY(f) REFERENCES 'p 1 "parent one"' ON UPDATE CASCADE);
+    CREATE TABLE c3(e, 'f col 2', FOREIGN KEY('f col 2') REFERENCES 'p 1 "parent one"' ON UPDATE CASCADE);
+
+    INSERT INTO 'p 1 "parent one"' VALUES(1, 1);
+    INSERT INTO c1 VALUES(1, 1);
+    INSERT INTO c2 VALUES(1, 1);
+    INSERT INTO c3 VALUES(1, 1);
+
+    -- CREATE TABLE q(a, b, PRIMARY KEY(b));
+  }
+} {}
+do_test e_fkey-56.2 {
+  execsql { ALTER TABLE 'p 1 "parent one"' RENAME TO p }
+} {}
+do_test e_fkey-56.3 {
+  execsql {
+    UPDATE p SET a = 'xxx', b = 'xxx';
+    SELECT * FROM p;
+    SELECT * FROM c1;
+    SELECT * FROM c2;
+    SELECT * FROM c3;
+  }
+} {xxx xxx 1 xxx 1 xxx 1 xxx}
+do_test e_fkey-56.4 {
+  execsql { SELECT sql FROM sqlite_master WHERE type = 'table'}
+} [list                                                                     \
+  {CREATE TABLE "p"(a REFERENCES "p", b, PRIMARY KEY(b))}                   \
+  {CREATE TABLE c1(c, d REFERENCES "p" ON UPDATE CASCADE)}                  \
+  {CREATE TABLE c2(e, f, FOREIGN KEY(f) REFERENCES "p" ON UPDATE CASCADE)}  \
+  {CREATE TABLE c3(e, 'f col 2', FOREIGN KEY('f col 2') REFERENCES "p" ON UPDATE CASCADE)} \
+]
+}
+
+#-------------------------------------------------------------------------
+# Check that a DROP TABLE does an implicit DELETE FROM. Which does not
+# cause any triggers to fire, but does fire foreign key actions.
+#
+# EVIDENCE-OF: R-14208-23986 If foreign key constraints are enabled when
+# it is prepared, the DROP TABLE command performs an implicit DELETE to
+# remove all rows from the table before dropping it.
+#
+# EVIDENCE-OF: R-11078-03945 The implicit DELETE does not cause any SQL
+# triggers to fire, but may invoke foreign key actions or constraint
+# violations.
+#
+do_test e_fkey-57.1 {
+  drop_all_tables
+  execsql {
+    CREATE TABLE p(a, b, PRIMARY KEY(a, b));
+
+    CREATE TABLE c1(c, d, FOREIGN KEY(c, d) REFERENCES p ON DELETE SET NULL);
+    CREATE TABLE c2(c, d, FOREIGN KEY(c, d) REFERENCES p ON DELETE SET DEFAULT);
+    CREATE TABLE c3(c, d, FOREIGN KEY(c, d) REFERENCES p ON DELETE CASCADE);
+    CREATE TABLE c4(c, d, FOREIGN KEY(c, d) REFERENCES p ON DELETE RESTRICT);
+    CREATE TABLE c5(c, d, FOREIGN KEY(c, d) REFERENCES p ON DELETE NO ACTION);
+
+    CREATE TABLE c6(c, d, 
+      FOREIGN KEY(c, d) REFERENCES p ON DELETE RESTRICT 
+      DEFERRABLE INITIALLY DEFERRED
+    );
+    CREATE TABLE c7(c, d, 
+      FOREIGN KEY(c, d) REFERENCES p ON DELETE NO ACTION
+      DEFERRABLE INITIALLY DEFERRED
+    );
+
+    CREATE TABLE log(msg);
+    CREATE TRIGGER tt AFTER DELETE ON p BEGIN
+      INSERT INTO log VALUES('delete ' || old.rowid);
+    END;
+  }
+} {}
+
+do_test e_fkey-57.2 {
+  execsql {
+    INSERT INTO p VALUES('a', 'b');
+    INSERT INTO c1 VALUES('a', 'b');
+    INSERT INTO c2 VALUES('a', 'b');
+    INSERT INTO c3 VALUES('a', 'b');
+    BEGIN;
+      DROP TABLE p;
+      SELECT * FROM c1;
+  }
+} {{} {}}
+do_test e_fkey-57.3 {
+  execsql { SELECT * FROM c2 }
+} {{} {}}
+do_test e_fkey-57.4 {
+  execsql { SELECT * FROM c3 }
+} {}
+do_test e_fkey-57.5 {
+  execsql { SELECT * FROM log }
+} {}
+do_test e_fkey-57.6 {
+  execsql ROLLBACK
+} {}
+do_test e_fkey-57.7 {
+  execsql {
+    BEGIN;
+      DELETE FROM p;
+      SELECT * FROM log;
+    ROLLBACK;
+  }
+} {{delete 1}}
+
+#-------------------------------------------------------------------------
+# If an IMMEDIATE foreign key fails as a result of a DROP TABLE, the
+# DROP TABLE command fails.
+#
+# EVIDENCE-OF: R-32768-47925 If an immediate foreign key constraint is
+# violated, the DROP TABLE statement fails and the table is not dropped.
+#
+do_test e_fkey-58.1 {
+  execsql { 
+    DELETE FROM c1;
+    DELETE FROM c2;
+    DELETE FROM c3;
+  }
+  execsql { INSERT INTO c5 VALUES('a', 'b') }
+  catchsql { DROP TABLE p }
+} {1 {FOREIGN KEY constraint failed}}
+do_test e_fkey-58.2 {
+  execsql { SELECT * FROM p }
+} {a b}
+do_test e_fkey-58.3 {
+  catchsql {
+    BEGIN;
+      DROP TABLE p;
+  }
+} {1 {FOREIGN KEY constraint failed}}
+do_test e_fkey-58.4 {
+  execsql {
+    SELECT * FROM p;
+    SELECT * FROM c5;
+    ROLLBACK;
+  }
+} {a b a b}
+
+#-------------------------------------------------------------------------
+# If a DEFERRED foreign key fails as a result of a DROP TABLE, attempting
+# to commit the transaction fails unless the violation is fixed.
+#
+# EVIDENCE-OF: R-05903-08460 If a deferred foreign key constraint is
+# violated, then an error is reported when the user attempts to commit
+# the transaction if the foreign key constraint violations still exist
+# at that point.
+#
+do_test e_fkey-59.1 {
+  execsql { 
+    DELETE FROM c1 ; DELETE FROM c2 ; DELETE FROM c3 ;
+    DELETE FROM c4 ; DELETE FROM c5 ; DELETE FROM c6 ;
+    DELETE FROM c7 
+  }
+} {}
+do_test e_fkey-59.2 {
+  execsql { INSERT INTO c7 VALUES('a', 'b') }
+  execsql {
+    BEGIN;
+      DROP TABLE p;
+  }
+} {}
+do_test e_fkey-59.3 {
+  catchsql COMMIT
+} {1 {FOREIGN KEY constraint failed}}
+do_test e_fkey-59.4 {
+  execsql { CREATE TABLE p(a, b, PRIMARY KEY(a, b)) }
+  catchsql COMMIT
+} {1 {FOREIGN KEY constraint failed}}
+do_test e_fkey-59.5 {
+  execsql { INSERT INTO p VALUES('a', 'b') }
+  execsql COMMIT
+} {}
+
+#-------------------------------------------------------------------------
+# Any "foreign key mismatch" errors encountered while running an implicit
+# "DELETE FROM tbl" are ignored.
+#
+# EVIDENCE-OF: R-57242-37005 Any "foreign key mismatch" errors
+# encountered as part of an implicit DELETE are ignored.
+#
+drop_all_tables
+do_test e_fkey-60.1 {
+  execsql {
+    PRAGMA foreign_keys = OFF;
+
+    CREATE TABLE p(a PRIMARY KEY, b REFERENCES nosuchtable);
+    CREATE TABLE c1(c, d, FOREIGN KEY(c, d) REFERENCES a);
+    CREATE TABLE c2(c REFERENCES p(b), d);
+    CREATE TABLE c3(c REFERENCES p ON DELETE SET NULL, d);
+
+    INSERT INTO p VALUES(1, 2);
+    INSERT INTO c1 VALUES(1, 2);
+    INSERT INTO c2 VALUES(1, 2);
+    INSERT INTO c3 VALUES(1, 2);
+  }
+} {}
+do_test e_fkey-60.2 {
+  execsql { PRAGMA foreign_keys = ON }
+  catchsql { DELETE FROM p }
+} {1 {no such table: main.nosuchtable}}
+do_test e_fkey-60.3 {
+  execsql {
+    BEGIN;
+      DROP TABLE p;
+      SELECT * FROM c3;
+    ROLLBACK;
+  }
+} {{} 2}
+do_test e_fkey-60.4 {
+  execsql { CREATE TABLE nosuchtable(x PRIMARY KEY) }
+  catchsql { DELETE FROM p }
+} {1 {foreign key mismatch - "c2" referencing "p"}}
+do_test e_fkey-60.5 {
+  execsql { DROP TABLE c1 }
+  catchsql { DELETE FROM p }
+} {1 {foreign key mismatch - "c2" referencing "p"}}
+do_test e_fkey-60.6 {
+  execsql { DROP TABLE c2 }
+  execsql { DELETE FROM p }
+} {}
+
+#-------------------------------------------------------------------------
+# Test that the special behaviors of ALTER and DROP TABLE are only
+# activated when foreign keys are enabled. Special behaviors are:
+#
+#   1. ADD COLUMN not allowing a REFERENCES clause with a non-NULL 
+#      default value.
+#   2. Modifying foreign key definitions when a parent table is RENAMEd.
+#   3. Running an implicit DELETE FROM command as part of DROP TABLE.
+#
+# EVIDENCE-OF: R-54142-41346 The properties of the DROP TABLE and ALTER
+# TABLE commands described above only apply if foreign keys are enabled.
+#
+ifcapable altertable {
+do_test e_fkey-61.1.1 {
+  drop_all_tables
+  execsql { CREATE TABLE t1(a, b) ; INSERT INTO t1 VALUES(1, 2) }
+  catchsql { ALTER TABLE t1 ADD COLUMN c DEFAULT 'xxx' REFERENCES t2 }
+} {1 {Cannot add a REFERENCES column with non-NULL default value}}
+do_test e_fkey-61.1.2 {
+  execsql { PRAGMA foreign_keys = OFF }
+  execsql { ALTER TABLE t1 ADD COLUMN c DEFAULT 'xxx' REFERENCES t2 }
+  execsql { SELECT sql FROM sqlite_master WHERE name = 't1' }
+} {{CREATE TABLE t1(a, b, c DEFAULT 'xxx' REFERENCES t2)}}
+do_test e_fkey-61.1.3 {
+  execsql { PRAGMA foreign_keys = ON }
+} {}
+
+do_test e_fkey-61.2.1 {
+  drop_all_tables
+  execsql {
+    CREATE TABLE p(a UNIQUE);
+    CREATE TABLE c(b REFERENCES p(a));
+    BEGIN;
+      ALTER TABLE p RENAME TO parent;
+      SELECT sql FROM sqlite_master WHERE name = 'c';
+    ROLLBACK;
+  }
+} {{CREATE TABLE c(b REFERENCES "parent"(a))}}
+do_test e_fkey-61.2.2 {
+  execsql {
+    PRAGMA foreign_keys = OFF;
+    PRAGMA legacy_alter_table = ON;
+    ALTER TABLE p RENAME TO parent;
+    SELECT sql FROM sqlite_master WHERE name = 'c';
+  }
+} {{CREATE TABLE c(b REFERENCES p(a))}}
+do_test e_fkey-61.2.3 {
+  execsql { PRAGMA foreign_keys = ON }
+  execsql { PRAGMA legacy_alter_table = OFF }
+} {}
+
+do_test e_fkey-61.3.1 {
+  drop_all_tables
+  execsql {
+    CREATE TABLE p(a UNIQUE);
+    CREATE TABLE c(b REFERENCES p(a) ON DELETE SET NULL);
+    INSERT INTO p VALUES('x');
+    INSERT INTO c VALUES('x');
+    BEGIN;
+      DROP TABLE p;
+      SELECT * FROM c;
+    ROLLBACK;
+  }
+} {{}}
+do_test e_fkey-61.3.2 {
+  execsql {
+    PRAGMA foreign_keys = OFF;
+    DROP TABLE p;
+    SELECT * FROM c;
+  }
+} {x}
+do_test e_fkey-61.3.3 {
+  execsql { PRAGMA foreign_keys = ON }
+} {}
+}
+
+###########################################################################
+### SECTION 6: Limits and Unsupported Features
+###########################################################################
+
+#-------------------------------------------------------------------------
+# Test that MATCH clauses are parsed, but SQLite treats every foreign key
+# constraint as if it were "MATCH SIMPLE".
+#
+# EVIDENCE-OF: R-24728-13230 SQLite parses MATCH clauses (i.e. does not
+# report a syntax error if you specify one), but does not enforce them.
+#
+# EVIDENCE-OF: R-24450-46174 All foreign key constraints in SQLite are
+# handled as if MATCH SIMPLE were specified.
+#
+foreach zMatch [list SIMPLE PARTIAL FULL Simple parTIAL FuLL ] {
+  drop_all_tables
+  do_test e_fkey-62.$zMatch.1 {
+    execsql "
+      CREATE TABLE p(a, b, c, PRIMARY KEY(b, c));
+      CREATE TABLE c(d, e, f, FOREIGN KEY(e, f) REFERENCES p MATCH $zMatch);
+    "
+  } {}
+  do_test e_fkey-62.$zMatch.2 {
+    execsql { INSERT INTO p VALUES(1, 2, 3)         }
+
+    # MATCH SIMPLE behavior: Allow any child key that contains one or more
+    # NULL value to be inserted. Non-NULL values do not have to map to any
+    # parent key values, so long as at least one field of the child key is
+    # NULL.
+    execsql { INSERT INTO c VALUES('w', 2, 3)       }
+    execsql { INSERT INTO c VALUES('x', 'x', NULL)  }
+    execsql { INSERT INTO c VALUES('y', NULL, 'x')  }
+    execsql { INSERT INTO c VALUES('z', NULL, NULL) }
+
+    # Check that the FK is enforced properly if there are no NULL values 
+    # in the child key columns.
+    catchsql { INSERT INTO c VALUES('a', 2, 4) }
+  } {1 {FOREIGN KEY constraint failed}}
+}
+
+#-------------------------------------------------------------------------
+# Test that SQLite does not support the SET CONSTRAINT statement. And
+# that it is possible to create both immediate and deferred constraints.
+#
+# EVIDENCE-OF: R-21599-16038 In SQLite, a foreign key constraint is
+# permanently marked as deferred or immediate when it is created.
+#
+drop_all_tables
+do_test e_fkey-62.1 {
+  catchsql { SET CONSTRAINTS ALL IMMEDIATE }
+} {1 {near "SET": syntax error}}
+do_test e_fkey-62.2 {
+  catchsql { SET CONSTRAINTS ALL DEFERRED }
+} {1 {near "SET": syntax error}}
+
+do_test e_fkey-62.3 {
+  execsql {
+    CREATE TABLE p(a, b, PRIMARY KEY(a, b));
+    CREATE TABLE cd(c, d, 
+      FOREIGN KEY(c, d) REFERENCES p DEFERRABLE INITIALLY DEFERRED);
+    CREATE TABLE ci(c, d, 
+      FOREIGN KEY(c, d) REFERENCES p DEFERRABLE INITIALLY IMMEDIATE);
+    BEGIN;
+  }
+} {}
+do_test e_fkey-62.4 {
+  catchsql { INSERT INTO ci VALUES('x', 'y') }
+} {1 {FOREIGN KEY constraint failed}}
+do_test e_fkey-62.5 {
+  catchsql { INSERT INTO cd VALUES('x', 'y') }
+} {0 {}}
+do_test e_fkey-62.6 {
+  catchsql { COMMIT }
+} {1 {FOREIGN KEY constraint failed}}
+do_test e_fkey-62.7 {
+  execsql { 
+    DELETE FROM cd;
+    COMMIT;
+  }
+} {}
+
+#-------------------------------------------------------------------------
+# Test that the maximum recursion depth of foreign key action programs is
+# governed by the SQLITE_MAX_TRIGGER_DEPTH and SQLITE_LIMIT_TRIGGER_DEPTH
+# settings.
+#
+# EVIDENCE-OF: R-42264-30503 The SQLITE_MAX_TRIGGER_DEPTH and
+# SQLITE_LIMIT_TRIGGER_DEPTH settings determine the maximum allowable
+# depth of trigger program recursion. For the purposes of these limits,
+# foreign key actions are considered trigger programs.
+#
+proc test_on_delete_recursion {limit} {
+  drop_all_tables
+  execsql { 
+    BEGIN;
+    CREATE TABLE t0(a PRIMARY KEY, b);
+    INSERT INTO t0 VALUES('x0', NULL);
+  }
+  for {set i 1} {$i <= $limit} {incr i} {
+    execsql "
+      CREATE TABLE t$i (
+        a PRIMARY KEY, b REFERENCES t[expr $i-1] ON DELETE CASCADE
+      );
+      INSERT INTO t$i VALUES('x$i', 'x[expr $i-1]');
+    "
+  }
+  execsql COMMIT
+  catchsql "
+    DELETE FROM t0;
+    SELECT count(*) FROM t$limit;
+  "
+}
+proc test_on_update_recursion {limit} {
+  drop_all_tables
+  execsql { 
+    BEGIN;
+    CREATE TABLE t0(a PRIMARY KEY);
+    INSERT INTO t0 VALUES('xxx');
+  }
+  for {set i 1} {$i <= $limit} {incr i} {
+    set j [expr $i-1]
+
+    execsql "
+      CREATE TABLE t$i (a PRIMARY KEY REFERENCES t$j ON UPDATE CASCADE);
+      INSERT INTO t$i VALUES('xxx');
+    "
+  }
+  execsql COMMIT
+  catchsql "
+    UPDATE t0 SET a = 'yyy';
+    SELECT NOT (a='yyy') FROM t$limit;
+  "
+}
+
+# If the current build was created using clang with the -fsanitize=address
+# switch, then the library uses considerably more stack space than usual.
+# So much more, that some of the following tests cause stack overflows
+# if they are run under this configuration.
+#
+if {[clang_sanitize_address]==0} {
+  do_test e_fkey-63.1.1 {
+    test_on_delete_recursion $SQLITE_MAX_TRIGGER_DEPTH
+  } {0 0}
+  do_test e_fkey-63.1.2 {
+    test_on_delete_recursion [expr $SQLITE_MAX_TRIGGER_DEPTH+1]
+  } {1 {too many levels of trigger recursion}}
+  do_test e_fkey-63.1.3 {
+    sqlite3_limit db SQLITE_LIMIT_TRIGGER_DEPTH 5
+      test_on_delete_recursion 5
+  } {0 0}
+  do_test e_fkey-63.1.4 {
+    test_on_delete_recursion 6
+  } {1 {too many levels of trigger recursion}}
+  do_test e_fkey-63.1.5 {
+    sqlite3_limit db SQLITE_LIMIT_TRIGGER_DEPTH 1000000
+  } {5}
+  do_test e_fkey-63.2.1 {
+    test_on_update_recursion $SQLITE_MAX_TRIGGER_DEPTH
+  } {0 0}
+  do_test e_fkey-63.2.2 {
+    test_on_update_recursion [expr $SQLITE_MAX_TRIGGER_DEPTH+1]
+  } {1 {too many levels of trigger recursion}}
+  do_test e_fkey-63.2.3 {
+    sqlite3_limit db SQLITE_LIMIT_TRIGGER_DEPTH 5
+      test_on_update_recursion 5
+  } {0 0}
+  do_test e_fkey-63.2.4 {
+    test_on_update_recursion 6
+  } {1 {too many levels of trigger recursion}}
+  do_test e_fkey-63.2.5 {
+    sqlite3_limit db SQLITE_LIMIT_TRIGGER_DEPTH 1000000
+  } {5}
+}
+
+#-------------------------------------------------------------------------
+# The setting of the recursive_triggers pragma does not affect foreign
+# key actions.
+#
+# EVIDENCE-OF: R-44355-00270 The PRAGMA recursive_triggers setting does
+# not affect the operation of foreign key actions.
+#
+foreach recursive_triggers_setting [list 0 1 ON OFF] {
+  drop_all_tables
+  execsql "PRAGMA recursive_triggers = $recursive_triggers_setting"
+
+  do_test e_fkey-64.$recursive_triggers_setting.1 {
+    execsql {
+      CREATE TABLE t1(a PRIMARY KEY, b REFERENCES t1 ON DELETE CASCADE);
+      INSERT INTO t1 VALUES(1, NULL);
+      INSERT INTO t1 VALUES(2, 1);
+      INSERT INTO t1 VALUES(3, 2);
+      INSERT INTO t1 VALUES(4, 3);
+      INSERT INTO t1 VALUES(5, 4);
+      SELECT count(*) FROM t1;
+    }
+  } {5}
+  do_test e_fkey-64.$recursive_triggers_setting.2 {
+    execsql { SELECT count(*) FROM t1 WHERE a = 1 }
+  } {1}
+  do_test e_fkey-64.$recursive_triggers_setting.3 {
+    execsql { 
+      DELETE FROM t1 WHERE a = 1;
+      SELECT count(*) FROM t1;
+    }
+  } {0}
+}
+
+finish_test
diff --git a/test/e_fts3.test b/test/e_fts3.test
new file mode 100644
index 0000000000000000000000000000000000000000..c06feab2d12f447e34aa349b11220b638af738a2
--- /dev/null
+++ b/test/e_fts3.test
@@ -0,0 +1,707 @@
+# 2009 November 28
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements tests to verify the "testable statements" in the
+# fts3.in document.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If this build does not include FTS3, skip the tests in this file.
+#
+ifcapable !fts3 { finish_test ; return }
+source $testdir/fts3_common.tcl
+source $testdir/malloc_common.tcl
+
+# Procs used to make the tests in this file easier to read.
+#
+proc ddl_test {tn ddl} {
+  uplevel [list do_write_test e_fts3-$tn sqlite_master $ddl]
+}
+proc write_test {tn tbl sql} {
+  uplevel [list do_write_test e_fts3-$tn $tbl $sql]
+}
+proc read_test {tn sql result} {
+  uplevel [list do_select_test e_fts3-$tn $sql $result]
+}
+proc error_test {tn sql result} {
+  uplevel [list do_error_test e_fts3-$tn $sql $result]
+}
+
+
+#-------------------------------------------------------------------------
+# The body of the following [foreach] block contains test cases to verify
+# that the example code in fts3.html works as expected. The tests run three
+# times, with different values for DO_MALLOC_TEST.
+# 
+#   DO_MALLOC_TEST=0: Run tests with no OOM errors.
+#   DO_MALLOC_TEST=1: Run tests with transient OOM errors.
+#   DO_MALLOC_TEST=2: Run tests with persistent OOM errors.
+#
+foreach {DO_MALLOC_TEST enc} {
+  0 utf-8
+  1 utf-8
+  2 utf-8
+  1 utf-16
+} {
+
+#if {$DO_MALLOC_TEST} break
+
+# Reset the database and database connection. If this iteration of the 
+# [foreach] loop is testing with OOM errors, disable the lookaside buffer.
+#
+db close
+forcedelete test.db test.db-journal
+sqlite3 db test.db
+if {$DO_MALLOC_TEST} { sqlite3_db_config_lookaside db 0 0 0 }
+db eval "PRAGMA encoding = '$enc'"
+
+proc mit {blob} {
+  set scan(littleEndian) i*
+  set scan(bigEndian) I*
+  binary scan $blob $scan($::tcl_platform(byteOrder)) r
+  return $r
+}
+db func mit mit
+
+##########################################################################
+# Test the example CREATE VIRTUAL TABLE statements in section 1.1 
+# of fts3.in.
+#
+ddl_test   1.1.1.1 {CREATE VIRTUAL TABLE data USING fts3()}
+read_test  1.1.1.2 {PRAGMA table_info(data)} {0 content {} 0 {} 0}
+
+ddl_test   1.1.2.1 {
+  CREATE VIRTUAL TABLE pages USING fts3(title, keywords, body)
+}
+read_test  1.1.2.2 {
+  PRAGMA table_info(pages)
+} {0 title {} 0 {} 0 1 keywords {} 0 {} 0 2 body {} 0 {} 0}
+
+ddl_test   1.1.3.1 {
+  CREATE VIRTUAL TABLE mail USING fts3(
+      subject VARCHAR(256) NOT NULL,
+      body TEXT CHECK(length(body)<10240)
+  )
+}
+read_test  1.1.3.2 {
+  PRAGMA table_info(mail)
+} {0 subject {} 0 {} 0 1 body {} 0 {} 0}
+
+# A very large string. Used to test if the constraint on column "body" of
+# table "mail" is enforced (it should not be - FTS3 tables do not support
+# constraints).
+set largetext [string repeat "the quick brown fox " 5000]
+write_test 1.1.3.3 mail_content { INSERT INTO mail VALUES(NULL, $largetext) }
+read_test  1.1.3.4 {
+  SELECT subject IS NULL, length(body) FROM mail
+} [list 1 100000]
+
+ddl_test   1.1.4.1 {
+  CREATE VIRTUAL TABLE papers USING fts3(author, document, tokenize=porter)
+}
+read_test  1.1.4.2 {
+  PRAGMA table_info(papers)
+} {0 author {} 0 {} 0 1 document {} 0 {} 0}
+
+ddl_test   1.1.5.1 {
+  CREATE VIRTUAL TABLE simpledata USING fts3(tokenize=simple)
+}
+read_test  1.1.5.2 {
+  PRAGMA table_info(simpledata)
+} {0 content {} 0 {} 0}
+
+ifcapable icu {
+  ddl_test 1.1.6.1 {
+    CREATE VIRTUAL TABLE names USING fts3(a, b, tokenize=icu en_AU)
+  }
+  read_test  1.1.6.2 {
+    PRAGMA table_info(names)
+  } {0 a {} 0 {} 0 1 b {} 0 {} 0}
+}
+
+ddl_test   1.1.7.1 {DROP TABLE data}
+ddl_test   1.1.7.2 {DROP TABLE pages}
+ddl_test   1.1.7.3 {DROP TABLE mail}
+ddl_test   1.1.7.4 {DROP TABLE papers}
+ddl_test   1.1.7.5 {DROP TABLE simpledata}
+read_test  1.1.7.6 {SELECT * FROM sqlite_master} {}
+
+# The following is not one of the examples in section 1.1. It tests 
+# specifying an FTS3 table with no module arguments using a slightly
+# different syntax.
+ddl_test   1.1.8.1 {CREATE VIRTUAL TABLE data USING fts3;}
+read_test  1.1.8.2 {PRAGMA table_info(data)} {0 content {} 0 {} 0}
+ddl_test   1.1.8.3 {DROP TABLE data}
+
+##########################################################################
+# Test the examples in section 1.2 (populating fts3 tables)
+#
+ddl_test   1.2.1.1 {
+  CREATE VIRTUAL TABLE pages USING fts3(title, body);
+}
+write_test 1.2.1.2 pages_content {
+  INSERT INTO pages(docid, title, body) 
+  VALUES(53, 'Home Page', 'SQLite is a software...');
+}
+read_test  1.2.1.3 {
+  SELECT docid, * FROM pages
+} {53 {Home Page} {SQLite is a software...}}
+
+write_test 1.2.1.4 pages_content {
+  INSERT INTO pages(title, body) 
+  VALUES('Download', 'All SQLite source code...');
+}
+read_test  1.2.1.5 {
+  SELECT docid, * FROM pages
+} {53 {Home Page} {SQLite is a software...} 54 Download {All SQLite source code...}}
+
+write_test 1.2.1.6 pages_content {
+  UPDATE pages SET title = 'Download SQLite' WHERE rowid = 54
+}
+read_test  1.2.1.7 {
+  SELECT docid, * FROM pages
+} {53 {Home Page} {SQLite is a software...} 54 {Download SQLite} {All SQLite source code...}}
+
+write_test 1.2.1.8 pages_content { DELETE FROM pages }
+read_test  1.2.1.9 { SELECT docid, * FROM pages } {}
+
+do_error_test fts3-1.2.1.10 {
+  INSERT INTO pages(rowid, docid, title, body) VALUES(1, 2, 'A title', 'A document body');
+} {SQL logic error}
+
+# Test the optimize() function example:
+ddl_test   1.2.2.1 { CREATE VIRTUAL TABLE docs USING fts3 }
+write_test 1.2.2.2 docs_content {
+  INSERT INTO docs VALUES('Others translate the first clause as');
+}
+write_test 1.2.2.3 docs_content {
+  INSERT INTO docs VALUES('"which is for Solomon," meaning that');
+}
+write_test 1.2.2.4 docs_content {
+  INSERT INTO docs VALUES('the book is dedicated to Solomon.');
+}
+read_test  1.2.2.5 { SELECT count(*) FROM docs_segdir } {3}
+write_test 1.2.2.6 docs_segdir {
+  INSERT INTO docs(docs) VALUES('optimize');
+}
+read_test  1.2.2.7 { SELECT count(*) FROM docs_segdir } {1}
+ddl_test   1.2.2.8 { DROP TABLE docs }
+
+##########################################################################
+# Test the examples in section 1.3 (querying FTS3 tables)
+#
+ddl_test   1.3.1.1 { CREATE VIRTUAL TABLE mail USING fts3(subject, body) }
+read_test  1.3.1.2 { 
+  SELECT * FROM mail WHERE rowid = 15;                -- Fast. Rowid lookup.
+  SELECT * FROM mail WHERE body MATCH 'sqlite';       -- Fast. Full-text query.
+  SELECT * FROM mail WHERE mail MATCH 'search';       -- Fast. Full-text query.
+  SELECT * FROM mail WHERE rowid BETWEEN 15 AND 20;   -- Slow. Linear scan.
+  SELECT * FROM mail WHERE subject = 'database';      -- Slow. Linear scan.
+  SELECT * FROM mail WHERE subject MATCH 'database';  -- Fast. Full-text query.
+} {}
+ddl_test   1.3.1.3 { DROP TABLE mail }
+
+ddl_test   1.3.2.1 { CREATE VIRTUAL TABLE mail USING fts3(subject, body) }
+
+write_test 1.3.2.2 mail_content {
+  INSERT INTO mail(docid, subject, body) 
+  VALUES(1, 'software feedback', 'found it too slow')
+}
+write_test 1.3.2.3 mail_content {
+  INSERT INTO mail(docid, subject, body) 
+  VALUES(2, 'software feedback', 'no feedback')
+}
+write_test 1.3.2.4 mail_content {
+  INSERT INTO mail(docid, subject, body) 
+  VALUES(3, 'slow lunch order',  'was a software problem')
+}
+read_test  1.3.2.5 {
+  SELECT * FROM mail WHERE subject MATCH 'software'
+} {{software feedback} {found it too slow} {software feedback} {no feedback}}
+read_test  1.3.2.6 {
+  SELECT * FROM mail WHERE body MATCH 'feedback'
+} {{software feedback} {no feedback}}
+read_test  1.3.2.7 {
+  SELECT * FROM mail WHERE mail MATCH 'software'
+} {{software feedback} {found it too slow} {software feedback} {no feedback} {slow lunch order} {was a software problem}}
+read_test  1.3.2.7 {
+  SELECT * FROM mail WHERE mail MATCH 'slow'
+} {{software feedback} {found it too slow} {slow lunch order} {was a software problem}}
+ddl_test   1.3.2.8 { DROP TABLE mail }
+
+ddl_test   1.3.3.1 { CREATE VIRTUAL TABLE docs USING fts3(content) }
+read_test  1.3.3.2 { SELECT * FROM docs WHERE docs MATCH 'sqlite' } {}
+read_test  1.3.3.3 { SELECT * FROM docs WHERE docs.docs MATCH 'sqlite' } {}
+read_test  1.3.3.4 { SELECT * FROM docs WHERE main.docs.docs MATCH 'sqlite' } {}
+do_error_test e_fts3-1.3.3.5 { 
+  SELECT * FROM docs WHERE main.docs MATCH 'sqlite' 
+} {no such column: main.docs}
+ddl_test   1.3.2.8 { DROP TABLE docs }
+
+##########################################################################
+# Test the examples in section 3 (full-text index queries).
+#
+ddl_test   1.4.1.1 { CREATE VIRTUAL TABLE docs USING fts3(title, body) }
+unset -nocomplain R
+foreach {tn title body} {
+  2 "linux driver" "a device"
+  3 "driver"       "linguistic trick"
+  4 "problems"     "linux problems"
+  5 "linux"        "big problems"
+  6 "linux driver" "a device driver problem"
+  7 "good times"   "applications for linux"
+  8 "not so good"  "linux applications"
+  9 "alternative"  "linoleum appliances"
+ 10 "no L I N"     "to be seen"
+} {
+  write_test 1.4.1.$tn docs_content { INSERT INTO docs VALUES($title,$body) }
+  set R($tn) [list $title $body]
+}
+
+read_test  1.4.1.11 { 
+  SELECT * FROM docs WHERE docs MATCH 'linux'
+} [concat $R(2) $R(4) $R(5) $R(6) $R(7) $R(8)]
+read_test  1.4.1.12 { 
+  SELECT * FROM docs WHERE docs MATCH 'lin*'
+} [concat $R(2) $R(3) $R(4) $R(5) $R(6) $R(7) $R(8) $R(9)]
+read_test  1.4.1.13 { 
+  SELECT * FROM docs WHERE docs MATCH 'title:linux problems'
+} [concat $R(5)]
+read_test  1.4.1.14 { 
+  SELECT * FROM docs WHERE body MATCH 'title:linux driver'
+} [concat $R(6)]
+read_test  1.4.1.15 { 
+  SELECT * FROM docs WHERE docs MATCH '"linux applications"'
+} [concat $R(8)]
+read_test  1.4.1.16 { 
+  SELECT * FROM docs WHERE docs MATCH '"lin* app*"'
+} [concat $R(8) $R(9)]
+ddl_test   1.4.1.17 { DROP TABLE docs }
+unset R
+
+ddl_test   1.4.2.1 { CREATE VIRTUAL TABLE docs USING fts3() }
+write_test 1.4.2.2 docs_content { 
+  INSERT INTO docs VALUES(
+  'SQLite is an ACID compliant embedded relational database management system')
+}
+foreach {tn query hit} {
+3 {SELECT * FROM docs WHERE docs MATCH 'sqlite NEAR database'} 1
+4 {SELECT * FROM docs WHERE docs MATCH 'database NEAR/6 sqlite'} 1
+5 {SELECT * FROM docs WHERE docs MATCH 'database NEAR/5 sqlite'} 0
+6 {SELECT * FROM docs WHERE docs MATCH 'database NEAR/2 "ACID compliant"'} 1
+7 {SELECT * FROM docs WHERE docs MATCH '"ACID compliant" NEAR/2 sqlite'} 1
+8 {SELECT * FROM docs WHERE docs MATCH 'sqlite NEAR/2 acid NEAR/2 relational'} 1
+9 {SELECT * FROM docs WHERE docs MATCH 'acid NEAR/2 sqlite NEAR/2 relational'} 0
+} {
+  set res [db eval {SELECT * FROM docs WHERE $hit}]
+  read_test 1.4.2.$tn $query $res
+}
+ddl_test 1.4.2.10 { DROP TABLE docs }
+
+##########################################################################
+# Test the example in section 3.1 (set operators with enhanced syntax).
+#
+set sqlite_fts3_enable_parentheses 1
+ddl_test 1.5.1.1 { CREATE VIRTUAL TABLE docs USING fts3() }
+foreach {tn docid content} {
+  2 1 "a database is a software system"
+  3 2 "sqlite is a software system"
+  4 3 "sqlite is a database"
+} {
+  set R($docid) $content
+  write_test 1.5.1.$tn docs_content { 
+    INSERT INTO docs(docid, content) VALUES($docid, $content)
+  }
+}
+read_test 1.5.1.4 {
+  SELECT * FROM docs WHERE docs MATCH 'sqlite AND database'
+} [list $R(3)]
+read_test 1.5.1.5 {
+  SELECT * FROM docs WHERE docs MATCH 'database sqlite'
+} [list $R(3)]
+read_test 1.5.1.6 {
+  SELECT * FROM docs WHERE docs MATCH 'sqlite OR database'
+} [list $R(1) $R(2) $R(3)]
+read_test 1.5.1.7 {
+  SELECT * FROM docs WHERE docs MATCH 'database NOT sqlite'
+} [list $R(1)]
+read_test 1.5.1.8 {
+  SELECT * FROM docs WHERE docs MATCH 'database and sqlite'
+} {}
+
+write_test 1.5.2.1 docs_content {
+  INSERT INTO docs 
+    SELECT 'sqlite is also a library' UNION ALL
+    SELECT 'library software'
+}
+read_test 1.5.2.2 {
+  SELECT docid FROM docs WHERE docs MATCH 'sqlite AND database OR library'
+} {3 4 5}
+read_test 1.5.2.3 {
+  SELECT docid FROM docs WHERE docs MATCH 'sqlite AND database'
+    UNION
+  SELECT docid FROM docs WHERE docs MATCH 'library'
+} {3 4 5}
+write_test 1.5.2.4 docs_content {
+  INSERT INTO docs 
+    SELECT 'the sqlite library runs on linux' UNION ALL
+    SELECT 'as does the sqlite database (on linux)' UNION ALL
+    SELECT 'the sqlite database is accessed by the sqlite library'
+}
+read_test 1.5.2.2 {
+  SELECT docid FROM docs 
+  WHERE docs MATCH '("sqlite database" OR "sqlite library") AND linux';
+} {6 7}
+read_test 1.5.2.3 {
+  SELECT docid FROM docs WHERE docs MATCH 'linux'
+    INTERSECT
+  SELECT docid FROM (
+    SELECT docid FROM docs WHERE docs MATCH '"sqlite library"'
+      UNION
+    SELECT docid FROM docs WHERE docs MATCH '"sqlite database"'
+  );
+} {6 7}
+
+##########################################################################
+# Test the examples in section 3.2 (set operators with standard syntax).
+# These tests reuse the table populated by the block above.
+#
+set sqlite_fts3_enable_parentheses 0
+read_test 1.6.1.1 {
+  SELECT * FROM docs WHERE docs MATCH 'sqlite -database'
+} {{sqlite is a software system} {sqlite is also a library} {the sqlite library runs on linux}}
+read_test 1.6.1.2 {
+  SELECT * FROM docs WHERE docs MATCH 'sqlite OR database library'
+} {{sqlite is also a library} {the sqlite library runs on linux} {the sqlite database is accessed by the sqlite library}}
+
+set sqlite_fts3_enable_parentheses 1
+read_test 1.6.1.3 {
+  SELECT * FROM docs WHERE docs MATCH 'sqlite OR database library'
+} {{sqlite is a software system} {sqlite is a database} {sqlite is also a library} {the sqlite library runs on linux} {as does the sqlite database (on linux)} {the sqlite database is accessed by the sqlite library}}
+read_test 1.6.1.4 {
+  SELECT * FROM docs WHERE docs MATCH '(sqlite OR database) library'
+} {{sqlite is also a library} {the sqlite library runs on linux} {the sqlite database is accessed by the sqlite library}}
+set sqlite_fts3_enable_parentheses 0
+ddl_test  1.6.1.5 { DROP TABLE docs }
+
+##########################################################################
+# Test the examples in section 4 (auxillary functions).
+#
+ddl_test   1.7.1.1 { CREATE VIRTUAL TABLE mail USING fts3(subject, body) }
+
+write_test 1.7.1.2 mail_content { 
+  INSERT INTO mail VALUES(
+    'hello world', 'This message is a hello world message.');
+}
+write_test 1.7.1.3 mail_content { 
+  INSERT INTO mail VALUES(
+    'urgent: serious', 'This mail is seen as a more serious mail');
+}
+
+read_test  1.7.1.4 { 
+  SELECT offsets(mail) FROM mail WHERE mail MATCH 'world';
+} {{0 0 6 5 1 0 24 5}}
+read_test  1.7.1.5 { 
+  SELECT offsets(mail) FROM mail WHERE mail MATCH 'message'
+} {{1 0 5 7 1 0 30 7}}
+read_test  1.7.1.6 { 
+  SELECT offsets(mail) FROM mail WHERE mail MATCH '"serious mail"'
+} {{1 0 28 7 1 1 36 4}}
+
+ddl_test   1.7.2.1 { CREATE VIRTUAL TABLE text USING fts3() }
+
+write_test 1.7.2.2 text_content {
+  INSERT INTO text VALUES('
+    During 30 Nov-1 Dec, 2-3oC drops. Cool in the upper portion, minimum temperature 14-16oC and cool elsewhere, minimum temperature 17-20oC. Cold to very cold on mountaintops, minimum temperature 6-12oC. Northeasterly winds 15-30 km/hr. After that, temperature increases. Northeasterly winds 15-30 km/hr.
+  ');
+}
+
+read_test  1.7.2.3 {
+  SELECT snippet(text) FROM text WHERE text MATCH 'cold'
+} {{<b>...</b>cool elsewhere, minimum temperature 17-20oC. <b>Cold</b> to very <b>cold</b> on mountaintops, minimum temperature 6<b>...</b>}}
+
+read_test  1.7.2.4 {
+  SELECT snippet(text, '[', ']', '...') FROM text WHERE text MATCH '"min* tem*"'
+} {{...the upper portion, [minimum] [temperature] 14-16oC and cool elsewhere, [minimum] [temperature] 17-20oC. Cold...}}
+
+ddl_test   1.7.3.1 { DROP TABLE IF EXISTS t1 }
+ddl_test   1.7.3.2 { CREATE VIRTUAL TABLE t1 USING fts3(a, b) }
+write_test 1.7.3.3 t1_content { 
+  INSERT INTO t1 VALUES(
+    'transaction default models default', 'Non transaction reads');
+}
+write_test 1.7.3.4 t1_content { 
+  INSERT INTO t1 VALUES('the default transaction', 'these semantics present');
+}
+write_test 1.7.3.5 t1_content { 
+  INSERT INTO t1 VALUES('single request', 'default data');
+}
+read_test  1.7.3.6 { 
+  SELECT mit(matchinfo(t1)) FROM t1 
+    WHERE t1 MATCH 'default transaction "these semantics"';
+} {{3 2 1 3 2 0 1 1 1 2 2 0 1 1 0 0 0 1 1 1}}
+
+##########################################################################
+# Test the example in section 5 (custom tokenizers).
+#
+ddl_test   1.8.1.1 { CREATE VIRTUAL TABLE simple USING fts3(tokenize=simple) } 
+write_test 1.8.1.2 simple_content { 
+  INSERT INTO simple VALUES('Right now they''re very frustrated')
+}
+read_test 1.8.1.3 {SELECT docid FROM simple WHERE simple MATCH 'Frustrated'} {1} 
+read_test 1.8.1.4 {SELECT docid FROM simple WHERE simple MATCH 'Frustration'} {}
+
+ddl_test   1.8.2.1 { CREATE VIRTUAL TABLE porter USING fts3(tokenize=porter) } 
+write_test 1.8.2.2 porter_content { 
+  INSERT INTO porter VALUES('Right now they''re very frustrated')
+}
+read_test 1.8.2.4 {
+  SELECT docid FROM porter WHERE porter MATCH 'Frustration'
+} {1}
+
+}
+# End of tests of example code in fts3.html
+#-------------------------------------------------------------------------
+
+#-------------------------------------------------------------------------
+# Test that errors in the arguments passed to the snippet and offsets
+# functions are handled correctly.
+#
+set DO_MALLOC_TEST 0
+ddl_test   2.1.0 { DROP TABLE IF EXISTS t1 }
+ddl_test   2.1.1 { CREATE VIRTUAL TABLE t1 USING fts3(a, b) }
+write_test 2.1.2 t1_content { 
+  INSERT INTO t1 VALUES('one two three', x'A1B2C3D4E5F6');
+}
+error_test 2.1.3 {
+  SELECT offsets(a) FROM t1 WHERE a MATCH 'one'
+} {illegal first argument to offsets}
+error_test 2.1.4 {
+  SELECT offsets(b) FROM t1 WHERE a MATCH 'one'
+} {illegal first argument to offsets}
+error_test 2.1.5 {
+  SELECT optimize(a) FROM t1 LIMIT 1
+} {illegal first argument to optimize}
+error_test 2.1.6 {
+  SELECT snippet(a) FROM t1 WHERE a MATCH 'one'
+} {illegal first argument to snippet}
+error_test 2.1.7 {
+  SELECT snippet() FROM t1 WHERE a MATCH 'one'
+} {unable to use function snippet in the requested context}
+error_test 2.1.8 {
+  SELECT snippet(a, b, 'A', 'B', 'C', 'D', 'E') FROM t1 WHERE a MATCH 'one'
+} {wrong number of arguments to function snippet()}
+#-------------------------------------------------------------------------
+
+#-------------------------------------------------------------------------
+# Test the effect of an OOM error while installing the FTS3 module (i.e.
+# opening a database handle). This case was not tested by the OOM testing
+# of the document examples above.
+#
+do_malloc_test e_fts3-3 -tclbody { 
+  if {[catch {sqlite3 db test.db}]} { error "out of memory" }
+}
+#-------------------------------------------------------------------------
+
+#-------------------------------------------------------------------------
+# Verify the return values of the optimize() function. If no error occurs,
+# the returned value should be "Index optimized" if the data structure
+# was modified, or "Index already optimal" if it were not.
+#
+set DO_MALLOC_TEST 0
+ddl_test   4.1 { CREATE VIRTUAL TABLE t4 USING fts3(a, b) }
+write_test 4.2 t4_content {
+  INSERT INTO t4 VALUES('In Xanadu', 'did Kubla Khan');
+}
+write_test 4.3 t4_content {
+  INSERT INTO t4 VALUES('a stately pleasure', 'dome decree');
+}
+do_test e_fts3-4.4 {
+  execsql { SELECT optimize(t4) FROM t4 LIMIT 1 } 
+} {{Index optimized}}
+do_test e_fts3-4.5 {
+  execsql { SELECT optimize(t4) FROM t4 LIMIT 1 } 
+} {{Index already optimal}}
+#-------------------------------------------------------------------------
+
+#-------------------------------------------------------------------------
+# Test that the snippet function appears to work correctly with 1, 2, 3
+# or 4 arguments passed to it.
+#
+set DO_MALLOC_TEST 0
+ddl_test   5.1 { CREATE VIRTUAL TABLE t5 USING fts3(x) }
+write_test 5.2 t5_content {
+  INSERT INTO t5 VALUES('In Xanadu did Kubla Khan A stately pleasure-dome decree Where Alph, the sacred river, ran Through caverns measureless to man Down to a sunless sea.  So twice five miles of fertile ground With walls and towers were girdled round : And there were gardens bright with sinuous rills, Where blossomed many an incense-bearing tree ; And here were forests ancient as the hills, Enfolding sunny spots of greenery.');
+}
+read_test 5.3 { 
+  SELECT snippet(t5) FROM t5 WHERE t5 MATCH 'miles'
+} {{<b>...</b>to a sunless sea.  So twice five <b>miles</b> of fertile ground With walls and towers<b>...</b>}}
+read_test 5.4 { 
+  SELECT snippet(t5, '<i>') FROM t5 WHERE t5 MATCH 'miles'
+} {{<b>...</b>to a sunless sea.  So twice five <i>miles</b> of fertile ground With walls and towers<b>...</b>}}
+read_test 5.5 { 
+  SELECT snippet(t5, '<i>', '</i>') FROM t5 WHERE t5 MATCH 'miles'
+} {{<b>...</b>to a sunless sea.  So twice five <i>miles</i> of fertile ground With walls and towers<b>...</b>}}
+read_test 5.6 { 
+  SELECT snippet(t5, '<i>', '</i>', 'XXX') FROM t5 WHERE t5 MATCH 'miles'
+} {{XXXto a sunless sea.  So twice five <i>miles</i> of fertile ground With walls and towersXXX}}
+#-------------------------------------------------------------------------
+
+#-------------------------------------------------------------------------
+# Test that an empty MATCH expression returns an empty result set. As
+# does passing a NULL value as a MATCH expression.
+#
+set DO_MALLOC_TEST 0
+ddl_test   6.1 { CREATE VIRTUAL TABLE t6 USING fts3(x) }
+write_test 6.2 t5_content { INSERT INTO t6 VALUES('a'); }
+write_test 6.3 t5_content { INSERT INTO t6 VALUES('b'); }
+write_test 6.4 t5_content { INSERT INTO t6 VALUES('c'); }
+read_test  6.5 { SELECT * FROM t6 WHERE t6 MATCH '' } {}
+read_test  6.6 { SELECT * FROM t6 WHERE x MATCH '' } {}
+read_test  6.7 { SELECT * FROM t6 WHERE t6 MATCH NULL } {}
+read_test  6.8 { SELECT * FROM t6 WHERE x MATCH NULL } {}
+#-------------------------------------------------------------------------
+
+#-------------------------------------------------------------------------
+# Test a few facets of the FTS3 xFilter() callback implementation:
+#
+#   1. That the sqlite3_index_constraint.usable flag is respected.
+#
+#   2. That it is an error to use the "docid" or "rowid" column of
+#      an FTS3 table as the LHS of a MATCH operator.
+#
+#   3. That it is an error to AND together two MATCH expressions in 
+#      that refer to a single FTS3 table in a WHERE clause.
+#
+#
+set DO_MALLOC_TEST 0
+ddl_test   7.1.1 { CREATE VIRTUAL TABLE t7 USING fts3(a) }
+ddl_test   7.1.2 { CREATE VIRTUAL TABLE t8 USING fts3(b) }
+write_test 7.1.3 t7_content { INSERT INTO t7(docid, a) VALUES(4,'number four') }
+write_test 7.1.4 t7_content { INSERT INTO t7(docid, a) VALUES(5,'number five') }
+write_test 7.1.5 t8_content { INSERT INTO t8(docid, b) VALUES(4,'letter D') }
+write_test 7.1.6 t8_content { INSERT INTO t8(docid, b) VALUES(5,'letter E') }
+read_test  7.1.7 {
+  SELECT a || ':' || b FROM t7 JOIN t8 USING(docid)
+} {{number four:letter D} {number five:letter E}}
+
+error_test 7.2.1 {
+  SELECT * FROM t7 WHERE docid MATCH 'number'
+} {unable to use function MATCH in the requested context}
+error_test 7.2.2 {
+  SELECT * FROM t7 WHERE rowid MATCH 'number'
+} {unable to use function MATCH in the requested context}
+
+error_test 7.3.1 {
+  SELECT * FROM t7 WHERE a MATCH 'number' AND a MATCH 'four'
+} {unable to use function MATCH in the requested context}
+error_test 7.3.2 {
+  SELECT * FROM t7, t8 WHERE a MATCH 'number' AND a MATCH 'four'
+} {unable to use function MATCH in the requested context}
+error_test 7.3.3 {
+  SELECT * FROM t7, t8 WHERE b MATCH 'letter' AND b MATCH 'd'
+} {unable to use function MATCH in the requested context}
+read_test 7.3.4 {
+  SELECT * FROM t7, t8 WHERE a MATCH 'number' AND b MATCH 'letter'
+} {{number four} {letter D} {number four} {letter E} {number five} {letter D} {number five} {letter E}}
+read_test 7.3.5 {
+  SELECT * FROM t7 WHERE a MATCH 'number' AND docid = 4
+} {{number four}}
+
+#-------------------------------------------------------------------------
+# Test the quoting of FTS3 table column names. Names may be quoted using
+# any of "", '', ``` or [].
+#
+set DO_MALLOC_TEST 0
+ddl_test  8.1.1 { CREATE VIRTUAL TABLE t9a USING fts3("c1", [c2]) }
+ddl_test  8.1.2 { CREATE VIRTUAL TABLE t9b USING fts3('c1', `c2`) }
+read_test 8.1.3 { PRAGMA table_info(t9a) } {0 c1 {} 0 {} 0 1 c2 {} 0 {} 0}
+read_test 8.1.4 { PRAGMA table_info(t9b) } {0 c1 {} 0 {} 0 1 c2 {} 0 {} 0}
+ddl_test  8.2.1 { CREATE VIRTUAL TABLE t9c USING fts3("c""1", 'c''2') }
+read_test 8.2.2 { PRAGMA table_info(t9c) } {0 c\"1 {} 0 {} 0 1 c'2 {} 0 {} 0}
+#-------------------------------------------------------------------------
+
+#-------------------------------------------------------------------------
+# Test that FTS3 tables can be renamed using the ALTER RENAME command.
+# OOM errors are tested during ALTER RENAME commands also.
+#
+foreach DO_MALLOC_TEST {0 1 2} {
+  db close
+  forcedelete test.db test.db-journal
+  sqlite3 db test.db
+  if {$DO_MALLOC_TEST} { sqlite3_db_config_lookaside db 0 0 0 }
+
+  ddl_test   9.1.1             { CREATE VIRTUAL TABLE t10 USING fts3(x) }
+  write_test 9.1.2 t10_content { INSERT INTO t10 VALUES('fts3 tables') }
+  write_test 9.1.3 t10_content { INSERT INTO t10 VALUES('are renameable') }
+
+  read_test  9.1.4 {
+    SELECT * FROM t10 WHERE t10 MATCH 'table*'
+  } {{fts3 tables}}
+  read_test  9.1.5 {
+    SELECT * FROM t10 WHERE x MATCH 'rename*'
+  } {{are renameable}}
+
+  ddl_test   9.1.6             { ALTER TABLE t10 RENAME TO t11 }
+
+  read_test  9.1.7 {
+    SELECT * FROM t11 WHERE t11 MATCH 'table*'
+  } {{fts3 tables}}
+  read_test  9.1.8 {
+    SELECT * FROM t11 WHERE x MATCH 'rename*'
+  } {{are renameable}}
+}
+#-------------------------------------------------------------------------
+
+#-------------------------------------------------------------------------
+# Test a couple of cases involving corrupt data structures:
+#
+#   1) A case where a document referenced by the full-text index is
+#      not present in the %_content table.
+#
+#   2) A badly formatted b-tree segment node.
+#
+set DO_MALLOC_TEST 0
+ddl_test   10.1.1 { CREATE VIRTUAL TABLE ta USING fts3 }
+write_test 10.1.2 ta_content { 
+  INSERT INTO ta VALUES('During a summer vacation in 1790') }
+write_test 10.1.3 ta_content {
+  INSERT INTO ta VALUES('Wordsworth went on a walking tour') }
+sqlite3_db_config db DEFENSIVE 0
+write_test 10.1.4 ta_content { DELETE FROM ta_content WHERE rowid = 2 }
+read_test  10.1.5 {
+  SELECT * FROM ta WHERE ta MATCH 'summer'
+} {{During a summer vacation in 1790}}
+error_test 10.1.6 {
+  SELECT * FROM ta WHERE ta MATCH 'walking'
+} {database disk image is malformed}
+
+write_test 10.2.1 ta_content { DELETE FROM ta }
+write_test 10.2.2 ta_content { 
+  INSERT INTO ta VALUES('debate demonstrated the rising difficulty') }
+write_test 10.2.3 ta_content { 
+  INSERT INTO ta VALUES('Google released its browser beta') }
+
+set blob [db one {SELECT root FROM ta_segdir WHERE rowid = 2}]
+binary scan $blob "a6 a3 a*" start middle end
+set middle "\x0E\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\x06\x06"
+set blob [binary format "a6 a* a*" $start $middle $end]
+write_test 10.2.4 ta_segdir { 
+  UPDATE ta_segdir SET root = $blob WHERE rowid = 2
+}
+error_test 10.2.5 {
+  SELECT * FROM ta WHERE ta MATCH 'beta'
+} {database disk image is malformed}
+
+
+finish_test
diff --git a/test/e_insert.test b/test/e_insert.test
new file mode 100644
index 0000000000000000000000000000000000000000..7561e58ccc074dcd9a19f725faa0aaaf96cae8af
--- /dev/null
+++ b/test/e_insert.test
@@ -0,0 +1,431 @@
+# 2010 September 18
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# The majority of this file implements tests to verify that the "testable
+# statements" in the lang_insert.html document are correct.
+#
+# Also, it contains tests to verify the statements in (the very short)
+# lang_replace.html.
+#
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !compound {
+  finish_test
+  return
+}
+
+# Organization of tests:
+#
+#   e_insert-0.*: Test the syntax diagram.
+#
+#   e_insert-1.*: Test statements of the form "INSERT ... VALUES(...)".
+#   
+#   e_insert-2.*: Test statements of the form "INSERT ... SELECT ...".
+#
+#   e_insert-3.*: Test statements of the form "INSERT ... DEFAULT VALUES".
+#
+#   e_insert-4.*: Test statements regarding the conflict clause.
+#
+#   e_insert-5.*: Test that the qualified table name and "DEFAULT VALUES"
+#                 syntaxes do not work in trigger bodies.
+#
+
+do_execsql_test e_insert-0.0 {
+  CREATE TABLE a1(a, b);
+  CREATE TABLE a2(a, b, c DEFAULT 'xyz');
+  CREATE TABLE a3(x DEFAULT 1.0, y DEFAULT 'string', z);
+  CREATE TABLE a4(c UNIQUE, d);
+} {}
+
+proc do_insert_tests {args} {
+  uplevel do_select_tests $args
+}
+
+# -- syntax diagram insert-stmt
+#
+do_insert_tests e_insert-0 {
+     1  "INSERT             INTO a1 DEFAULT VALUES"                   {}
+     2  "INSERT             INTO main.a1 DEFAULT VALUES"              {}
+     3  "INSERT OR ROLLBACK INTO main.a1 DEFAULT VALUES"              {}
+     4  "INSERT OR ROLLBACK INTO a1 DEFAULT VALUES"                   {}
+     5  "INSERT OR ABORT    INTO main.a1 DEFAULT VALUES"              {}
+     6  "INSERT OR ABORT    INTO a1 DEFAULT VALUES"                   {}
+     7  "INSERT OR REPLACE  INTO main.a1 DEFAULT VALUES"              {}
+     8  "INSERT OR REPLACE  INTO a1 DEFAULT VALUES"                   {}
+     9  "INSERT OR FAIL     INTO main.a1 DEFAULT VALUES"              {}
+    10  "INSERT OR FAIL     INTO a1 DEFAULT VALUES"                   {}
+    11  "INSERT OR FAIL     INTO main.a1 DEFAULT VALUES"              {}
+    12  "INSERT OR IGNORE   INTO a1 DEFAULT VALUES"                   {}
+    13  "REPLACE            INTO a1 DEFAULT VALUES"                   {}
+    14  "REPLACE            INTO main.a1 DEFAULT VALUES"              {}
+    15  "INSERT             INTO a1      VALUES(1, 2)"                {}
+    16  "INSERT             INTO main.a1 VALUES(1, 2)"                {}
+    17  "INSERT OR ROLLBACK INTO main.a1 VALUES(1, 2)"                {}
+    18  "INSERT OR ROLLBACK INTO a1      VALUES(1, 2)"                {}
+    19  "INSERT OR ABORT    INTO main.a1 VALUES(1, 2)"                {}
+    20  "INSERT OR ABORT    INTO a1      VALUES(1, 2)"                {}
+    21  "INSERT OR REPLACE  INTO main.a1 VALUES(1, 2)"                {}
+    22  "INSERT OR REPLACE  INTO a1      VALUES(1, 2)"                {}
+    23  "INSERT OR FAIL     INTO main.a1 VALUES(1, 2)"                {}
+    24  "INSERT OR FAIL     INTO a1      VALUES(1, 2)"                {}
+    25  "INSERT OR FAIL     INTO main.a1 VALUES(1, 2)"                {}
+    26  "INSERT OR IGNORE   INTO a1      VALUES(1, 2)"                {}
+    27  "REPLACE            INTO a1      VALUES(1, 2)"                {}
+    28  "REPLACE            INTO main.a1 VALUES(1, 2)"                {}
+    29  "INSERT             INTO a1      (b, a) VALUES(1, 2)"         {}
+    30  "INSERT             INTO main.a1 (b, a) VALUES(1, 2)"         {}
+    31  "INSERT OR ROLLBACK INTO main.a1 (b, a) VALUES(1, 2)"         {}
+    32  "INSERT OR ROLLBACK INTO a1      (b, a) VALUES(1, 2)"         {}
+    33  "INSERT OR ABORT    INTO main.a1 (b, a) VALUES(1, 2)"         {}
+    34  "INSERT OR ABORT    INTO a1      (b, a) VALUES(1, 2)"         {}
+    35  "INSERT OR REPLACE  INTO main.a1 (b, a) VALUES(1, 2)"         {}
+    36  "INSERT OR REPLACE  INTO a1      (b, a) VALUES(1, 2)"         {}
+    37  "INSERT OR FAIL     INTO main.a1 (b, a) VALUES(1, 2)"         {}
+    38  "INSERT OR FAIL     INTO a1      (b, a) VALUES(1, 2)"         {}
+    39  "INSERT OR FAIL     INTO main.a1 (b, a) VALUES(1, 2)"         {}
+    40  "INSERT OR IGNORE   INTO a1      (b, a) VALUES(1, 2)"         {}
+    41  "REPLACE            INTO a1      (b, a) VALUES(1, 2)"         {}
+    42  "REPLACE            INTO main.a1 (b, a) VALUES(1, 2)"         {}
+    43  "INSERT             INTO a1      SELECT c, b FROM a2"         {}
+    44  "INSERT             INTO main.a1 SELECT c, b FROM a2"         {}
+    45  "INSERT OR ROLLBACK INTO main.a1 SELECT c, b FROM a2"         {}
+    46  "INSERT OR ROLLBACK INTO a1      SELECT c, b FROM a2"         {}
+    47  "INSERT OR ABORT    INTO main.a1 SELECT c, b FROM a2"         {}
+    48  "INSERT OR ABORT    INTO a1      SELECT c, b FROM a2"         {}
+    49  "INSERT OR REPLACE  INTO main.a1 SELECT c, b FROM a2"         {}
+    50  "INSERT OR REPLACE  INTO a1      SELECT c, b FROM a2"         {}
+    51  "INSERT OR FAIL     INTO main.a1 SELECT c, b FROM a2"         {}
+    52  "INSERT OR FAIL     INTO a1      SELECT c, b FROM a2"         {}
+    53  "INSERT OR FAIL     INTO main.a1 SELECT c, b FROM a2"         {}
+    54  "INSERT OR IGNORE   INTO a1      SELECT c, b FROM a2"         {}
+    55  "REPLACE            INTO a1      SELECT c, b FROM a2"         {}
+    56  "REPLACE            INTO main.a1 SELECT c, b FROM a2"         {}
+    57  "INSERT             INTO a1      (b, a) SELECT c, b FROM a2"  {}
+    58  "INSERT             INTO main.a1 (b, a) SELECT c, b FROM a2"  {}
+    59  "INSERT OR ROLLBACK INTO main.a1 (b, a) SELECT c, b FROM a2"  {}
+    60  "INSERT OR ROLLBACK INTO a1      (b, a) SELECT c, b FROM a2"  {}
+    61  "INSERT OR ABORT    INTO main.a1 (b, a) SELECT c, b FROM a2"  {}
+    62  "INSERT OR ABORT    INTO a1      (b, a) SELECT c, b FROM a2"  {}
+    63  "INSERT OR REPLACE  INTO main.a1 (b, a) SELECT c, b FROM a2"  {}
+    64  "INSERT OR REPLACE  INTO a1      (b, a) SELECT c, b FROM a2"  {}
+    65  "INSERT OR FAIL     INTO main.a1 (b, a) SELECT c, b FROM a2"  {}
+    66  "INSERT OR FAIL     INTO a1      (b, a) SELECT c, b FROM a2"  {}
+    67  "INSERT OR FAIL     INTO main.a1 (b, a) SELECT c, b FROM a2"  {}
+    68  "INSERT OR IGNORE   INTO a1      (b, a) SELECT c, b FROM a2"  {}
+    69  "REPLACE            INTO a1      (b, a) SELECT c, b FROM a2"  {}
+    70  "REPLACE            INTO main.a1 (b, a) SELECT c, b FROM a2"  {}
+    71  "INSERT             INTO a1      (b, a) VALUES(1, 2),(3,4)"   {}
+    72  "INSERT             INTO main.a1 (b, a) VALUES(1, 2),(3,4)"   {}
+    73  "INSERT OR ROLLBACK INTO main.a1 (b, a) VALUES(1, 2),(3,4)"   {}
+    74  "INSERT OR ROLLBACK INTO a1      (b, a) VALUES(1, 2),(3,4)"   {}
+    75  "INSERT OR ABORT    INTO main.a1 (b, a) VALUES(1, 2),(3,4)"   {}
+    76  "INSERT OR ABORT    INTO a1      (b, a) VALUES(1, 2),(3,4)"   {}
+    77  "INSERT OR REPLACE  INTO main.a1 (b, a) VALUES(1, 2),(3,4)"   {}
+    78  "INSERT OR REPLACE  INTO a1      (b, a) VALUES(1, 2),(3,4)"   {}
+    79  "INSERT OR FAIL     INTO main.a1 (b, a) VALUES(1, 2),(3,4)"   {}
+    80  "INSERT OR FAIL     INTO a1      (b, a) VALUES(1, 2),(3,4)"   {}
+    81  "INSERT OR FAIL     INTO main.a1 (b, a) VALUES(1, 2),(3,4)"   {}
+    82  "INSERT OR IGNORE   INTO a1      (b, a) VALUES(1, 2),(3,4)"   {}
+    83  "REPLACE            INTO a1      (b, a) VALUES(1, 2),(3,4)"   {}
+    84  "REPLACE            INTO main.a1 (b, a) VALUES(1, 2),(3,4)"   {}
+}
+
+delete_all_data
+
+# EVIDENCE-OF: R-21490-41092 The first form (with the "VALUES" keyword)
+# creates one or more new rows in an existing table.
+#
+do_insert_tests e_insert-1.1 {
+    0    "SELECT count(*) FROM a2"           {0}
+
+    1a   "INSERT INTO a2 VALUES(1, 2, 3)"    {}
+    1b   "SELECT count(*) FROM a2"           {1}
+
+    2a   "INSERT INTO a2(a, b) VALUES(1, 2)" {}
+    2b   "SELECT count(*) FROM a2"           {2}
+
+    3a   "INSERT INTO a2(a) VALUES(3),(4)"   {}
+    3b   "SELECT count(*) FROM a2"           {4}
+}
+
+# EVIDENCE-OF: R-19218-01018 If the column-name list after table-name is
+# omitted then the number of values inserted into each row must be the
+# same as the number of columns in the table.
+#
+#   A test in the block above verifies that if the VALUES list has the
+#   correct number of columns (for table a2, 3 columns) works. So these
+#   tests just show that other values cause an error.
+#
+do_insert_tests e_insert-1.2 -error { 
+  table %s has %d columns but %d values were supplied
+} {
+    1    "INSERT INTO a2 VALUES(1)"         {a2 3 1}
+    2    "INSERT INTO a2 VALUES(1,2)"       {a2 3 2}
+    3    "INSERT INTO a2 VALUES(1,2,3,4)"   {a2 3 4}
+    4    "INSERT INTO a2 VALUES(1,2,3,4,5)" {a2 3 5}
+}
+
+# EVIDENCE-OF: R-29730-42609 In this case the result of evaluating the
+# left-most expression from each term of the VALUES list is inserted
+# into the left-most column of each new row, and so forth for each
+# subsequent expression.
+#
+delete_all_data
+do_insert_tests e_insert-1.3 {
+    1a   "INSERT INTO a2 VALUES(1, 2, 3)"    {}
+    1b   "SELECT * FROM a2 WHERE oid=last_insert_rowid()" {1 2 3}
+
+    2a   "INSERT INTO a2 VALUES('abc', NULL, 3*3+1)"      {}
+    2b   "SELECT * FROM a2 WHERE oid=last_insert_rowid()" {abc {} 10}
+
+    3a   "INSERT INTO a2 VALUES((SELECT count(*) FROM a2), 'x', 'y')" {}
+    3b   "SELECT * FROM a2 WHERE oid=last_insert_rowid()" {2 x y}
+}
+
+# EVIDENCE-OF: R-21115-58321 If a column-name list is specified, then
+# the number of values in each term of the VALUE list must match the
+# number of specified columns.
+#
+do_insert_tests e_insert-1.4 -error { 
+  %d values for %d columns
+} {
+    1    "INSERT INTO a2(a, b, c) VALUES(1)"         {1 3}
+    2    "INSERT INTO a2(a, b, c) VALUES(1,2)"       {2 3}
+    3    "INSERT INTO a2(a, b, c) VALUES(1,2,3,4)"   {4 3}
+    4    "INSERT INTO a2(a, b, c) VALUES(1,2,3,4,5)" {5 3}
+
+    5    "INSERT INTO a2(c, a) VALUES(1)"            {1 2}
+    6    "INSERT INTO a2(c, a) VALUES(1,2,3)"        {3 2}
+    7    "INSERT INTO a2(c, a) VALUES(1,2,3,4)"      {4 2}
+    8    "INSERT INTO a2(c, a) VALUES(1,2,3,4,5)"    {5 2}
+}
+
+# EVIDENCE-OF: R-07016-26442 Each of the named columns of the new row is
+# populated with the results of evaluating the corresponding VALUES
+# expression.
+#
+# EVIDENCE-OF: R-12183-43719 Table columns that do not appear in the
+# column list are populated with the default column value (specified as
+# part of the CREATE TABLE statement), or with NULL if no default value
+# is specified.
+#
+delete_all_data
+do_insert_tests e_insert-1.5 {
+    1a   "INSERT INTO a2(b, c) VALUES('b', 'c')"     {}
+    1b   "SELECT * FROM a2"                          {{} b c}
+
+    2a   "INSERT INTO a2(a, b) VALUES('a', 'b')"     {}
+    2b   "SELECT * FROM a2"                          {{} b c  a b xyz}
+}
+
+# EVIDENCE-OF: R-52173-30215 A new entry is inserted into the table for
+# each row of data returned by executing the SELECT statement.
+#
+delete_all_data
+do_insert_tests e_insert-2.1 {
+    0    "SELECT count(*) FROM a1"            {0}
+
+    1a   "SELECT count(*) FROM (SELECT 1, 2)" {1}
+    1b   "INSERT INTO a1 SELECT 1, 2"         {}
+    1c   "SELECT count(*) FROM a1"            {1}
+
+    2a   "SELECT count(*) FROM (SELECT b, a FROM a1)"           {1}
+    2b   "INSERT INTO a1 SELECT b, a FROM a1"                   {}
+    2c   "SELECT count(*) FROM a1"                              {2}
+
+    3a   "SELECT count(*) FROM (SELECT b, a FROM a1)"           {2}
+    3b   "INSERT INTO a1 SELECT b, a FROM a1"                   {}
+    3c   "SELECT count(*) FROM a1"                              {4}
+
+    4a   "SELECT count(*) FROM (SELECT b, a FROM a1)"           {4}
+    4b   "INSERT INTO a1 SELECT b, a FROM a1"                   {}
+    4c   "SELECT count(*) FROM a1"                              {8}
+
+    4a   "SELECT count(*) FROM (SELECT min(b), min(a) FROM a1)" {1}
+    4b   "INSERT INTO a1 SELECT min(b), min(a) FROM a1"         {}
+    4c   "SELECT count(*) FROM a1"                              {9}
+}
+
+
+# EVIDENCE-OF: R-63614-47421 If a column-list is specified, the number
+# of columns in the result of the SELECT must be the same as the number
+# of items in the column-list.
+#
+do_insert_tests e_insert-2.2 -error {
+  %d values for %d columns
+} {
+    1    "INSERT INTO a3(x, y) SELECT a, b, c FROM a2"            {3 2}
+    2    "INSERT INTO a3(x, y) SELECT * FROM a2"                  {3 2}
+    3    "INSERT INTO a3(x, y) SELECT * FROM a2 CROSS JOIN a1"    {5 2}
+    4    "INSERT INTO a3(x, y) SELECT * FROM a2 NATURAL JOIN a1"  {3 2}
+    5    "INSERT INTO a3(x, y) SELECT a2.a FROM a2,a1"            {1 2}
+
+    6    "INSERT INTO a3(z) SELECT a, b, c FROM a2"               {3 1}
+    7    "INSERT INTO a3(z) SELECT * FROM a2"                     {3 1}
+    8    "INSERT INTO a3(z) SELECT * FROM a2 CROSS JOIN a1"       {5 1}
+    9    "INSERT INTO a3(z) SELECT * FROM a2 NATURAL JOIN a1"     {3 1}
+    10   "INSERT INTO a3(z) SELECT a1.* FROM a2,a1"               {2 1}
+}
+
+# EVIDENCE-OF: R-58951-07798 Otherwise, if no column-list is specified,
+# the number of columns in the result of the SELECT must be the same as
+# the number of columns in the table.
+#
+do_insert_tests e_insert-2.3 -error {
+  table %s has %d columns but %d values were supplied
+} {
+    1    "INSERT INTO a1 SELECT a, b, c FROM a2"            {a1 2 3}
+    2    "INSERT INTO a1 SELECT * FROM a2"                  {a1 2 3}
+    3    "INSERT INTO a1 SELECT * FROM a2 CROSS JOIN a1"    {a1 2 5}
+    4    "INSERT INTO a1 SELECT * FROM a2 NATURAL JOIN a1"  {a1 2 3}
+    5    "INSERT INTO a1 SELECT a2.a FROM a2,a1"            {a1 2 1}
+}
+
+# EVIDENCE-OF: R-31074-37730 Any SELECT statement, including compound
+# SELECTs and SELECT statements with ORDER BY and/or LIMIT clauses, may
+# be used in an INSERT statement of this form.
+#
+delete_all_data
+do_execsql_test e_insert-2.3.0 {
+  INSERT INTO a1 VALUES('x', 'y');
+} {}
+do_insert_tests e_insert-2.3 {
+  1  "INSERT INTO a1 SELECT a,b FROM a1 UNION SELECT b,a FROM a1 ORDER BY 1" {}
+  2  "INSERT INTO a1(b, a) SELECT * FROM a1 LIMIT 1"                         {}
+  3  "INSERT INTO a1 SELECT 'a'||a, 'b'||b FROM a1 LIMIT 2 OFFSET 1"         {}
+  4  "INSERT INTO a1 SELECT * FROM a1 ORDER BY b, a"                         {}
+  S  "SELECT * FROM a1" {
+      x y 
+      x y y x
+      y x
+      ax by ay bx 
+      ay bx ax by y x y x x y x y
+  }
+}
+
+# EVIDENCE-OF: R-25149-22012 The INSERT ... DEFAULT VALUES statement
+# inserts a single new row into the named table.
+#
+delete_all_data
+do_insert_tests e_insert-3.1 {
+    1    "SELECT count(*) FROM a3"           {0}
+    2a   "INSERT INTO a3 DEFAULT VALUES"     {}
+    2b   "SELECT count(*) FROM a3"           {1}
+}
+
+# EVIDENCE-OF: R-18927-01951 Each column of the new row is populated
+# with its default value, or with a NULL if no default value is
+# specified as part of the column definition in the CREATE TABLE
+# statement.
+#
+delete_all_data
+do_insert_tests e_insert-3.2 {
+    1.1    "INSERT INTO a3 DEFAULT VALUES"     {}
+    1.2    "SELECT * FROM a3"                  {1.0 string {}}
+
+    2.1    "INSERT INTO a3 DEFAULT VALUES"     {}
+    2.2    "SELECT * FROM a3"                  {1.0 string {} 1.0 string {}}
+
+    3.1    "INSERT INTO a2 DEFAULT VALUES"     {}
+    3.2    "SELECT * FROM a2"                  {{} {} xyz}
+
+    4.1    "INSERT INTO a2 DEFAULT VALUES"     {}
+    4.2    "SELECT * FROM a2"                  {{} {} xyz {} {} xyz}
+
+    5.1    "INSERT INTO a1 DEFAULT VALUES"     {}
+    5.2    "SELECT * FROM a1"                  {{} {}}
+
+    6.1    "INSERT INTO a1 DEFAULT VALUES"     {}
+    6.2    "SELECT * FROM a1"                  {{} {} {} {}}
+}
+
+# EVIDENCE-OF: R-00267-47727 The initial "INSERT" keyword can be
+# replaced by "REPLACE" or "INSERT OR action" to specify an alternative
+# constraint conflict resolution algorithm to use during that one INSERT
+# command.
+#
+# EVIDENCE-OF: R-23110-47146 the parser allows the use of the single
+# keyword REPLACE as an alias for "INSERT OR REPLACE".
+#
+#    The two requirements above are tested by e_select-4.1.* and
+#    e_select-4.2.*, respectively.
+#
+# EVIDENCE-OF: R-03421-22330 The REPLACE command is an alias for the
+# "INSERT OR REPLACE" variant of the INSERT command.
+#
+#    This is a dup of R-23110-47146. Therefore it is also verified 
+#    by e_select-4.2.*. This requirement is the only one from
+#    lang_replace.html.
+#
+do_execsql_test e_insert-4.1.0 {
+  INSERT INTO a4 VALUES(1, 'a');
+  INSERT INTO a4 VALUES(2, 'a');
+  INSERT INTO a4 VALUES(3, 'a');
+} {}
+foreach {tn sql error ac data } {
+  1.1  "INSERT INTO a4 VALUES(2,'b')"  {UNIQUE constraint failed: a4.c}  1 {1 a 2 a 3 a}
+  1.2  "INSERT OR REPLACE INTO a4 VALUES(2, 'b')"            {}  1 {1 a 3 a 2 b}
+  1.3  "INSERT OR IGNORE INTO a4 VALUES(3, 'c')"             {}  1 {1 a 3 a 2 b}
+  1.4  "BEGIN" {} 0 {1 a 3 a 2 b}
+  1.5  "INSERT INTO a4 VALUES(1, 'd')" {UNIQUE constraint failed: a4.c}  0 {1 a 3 a 2 b}
+  1.6  "INSERT OR ABORT INTO a4 VALUES(1, 'd')" 
+        {UNIQUE constraint failed: a4.c}  0 {1 a 3 a 2 b}
+  1.7  "INSERT OR ROLLBACK INTO a4 VALUES(1, 'd')" 
+        {UNIQUE constraint failed: a4.c}  1 {1 a 3 a 2 b}
+  1.8  "INSERT INTO a4 SELECT 4, 'e' UNION ALL SELECT 3, 'e'"
+        {UNIQUE constraint failed: a4.c}  1 {1 a 3 a 2 b}
+  1.9  "INSERT OR FAIL INTO a4 SELECT 4, 'e' UNION ALL SELECT 3, 'e'"
+        {UNIQUE constraint failed: a4.c}  1 {1 a 3 a 2 b 4 e}
+
+  2.1  "INSERT INTO a4 VALUES(2,'f')"  
+        {UNIQUE constraint failed: a4.c}  1 {1 a 3 a 2 b 4 e}
+  2.2  "REPLACE INTO a4 VALUES(2, 'f')" {}  1 {1 a 3 a 4 e 2 f}
+} {
+  do_catchsql_test e_insert-4.1.$tn.1 $sql [list [expr {$error!=""}] $error]
+  do_execsql_test  e_insert-4.1.$tn.2 {SELECT * FROM a4} [list {*}$data]
+  do_test          e_insert-4.1.$tn.3 {sqlite3_get_autocommit db} $ac
+}
+
+# EVIDENCE-OF: R-59829-49719 The optional "schema-name." prefix on the
+# table-name is supported for top-level INSERT statements only.
+#
+# EVIDENCE-OF: R-05731-00924 The table name must be unqualified for
+# INSERT statements that occur within CREATE TRIGGER statements.
+#
+set err {1 {qualified table names are not allowed on INSERT, UPDATE, and DELETE statements within triggers}}
+
+do_catchsql_test e_insert-5.1.1 {
+  CREATE TRIGGER AFTER UPDATE ON a1 BEGIN
+    INSERT INTO main.a4 VALUES(new.a, new.b);
+  END;
+} $err
+do_catchsql_test e_insert-5.1.2 {
+  CREATE TEMP TABLE IF NOT EXISTS tmptable(a, b);
+  CREATE TRIGGER AFTER DELETE ON a3 BEGIN
+    INSERT INTO temp.tmptable VALUES(1, 2);
+  END;
+} $err
+
+# EVIDENCE-OF: R-15888-36326 Similarly, the "DEFAULT VALUES" form of the
+# INSERT statement is supported for top-level INSERT statements only and
+# not for INSERT statements within triggers.
+#
+do_catchsql_test e_insert-5.2.1 {
+  CREATE TRIGGER AFTER UPDATE ON a1 BEGIN
+    INSERT INTO a4 DEFAULT VALUES;
+  END;
+} {1 {near "DEFAULT": syntax error}}
+
+
+delete_all_data
+
+finish_test
diff --git a/test/e_reindex.test b/test/e_reindex.test
new file mode 100644
index 0000000000000000000000000000000000000000..50d2e7d5166fa734b1afd368f78bace813aa9d73
--- /dev/null
+++ b/test/e_reindex.test
@@ -0,0 +1,299 @@
+# 2010 September 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements tests to verify that the "testable statements" in 
+# the lang_reindex.html document are correct.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+proc do_reindex_tests {args} {
+  uplevel do_select_tests $args
+}
+
+do_execsql_test e_reindex-0.0 {
+  CREATE TABLE t1(a, b);
+  CREATE INDEX i1 ON t1(a, b);
+  CREATE INDEX i2 ON t1(b, a);
+} {}
+
+#  -- syntax diagram reindex-stmt
+#
+do_reindex_tests e_reindex-0.1 {
+  1   "REINDEX"           {}
+  2   "REINDEX nocase"    {}
+  3   "REINDEX binary"    {}
+  4   "REINDEX t1"        {}
+  5   "REINDEX main.t1"   {}
+  6   "REINDEX i1"        {}
+  7   "REINDEX main.i1"   {}
+}
+
+# EVIDENCE-OF: R-52173-44778 The REINDEX command is used to delete and
+# recreate indices from scratch.
+#
+#    Test this by corrupting some database indexes, running REINDEX, and
+#    observing that the corruption is gone.
+#
+sqlite3_db_config db DEFENSIVE 0
+do_execsql_test e_reindex-1.1 {
+  INSERT INTO t1 VALUES(1, 2);
+  INSERT INTO t1 VALUES(3, 4);
+  INSERT INTO t1 VALUES(5, 6);
+
+  CREATE TABLE saved(a,b,c,d,e);
+  INSERT INTO saved SELECT * FROM sqlite_master WHERE type = 'index';
+  PRAGMA writable_schema = 1;
+  DELETE FROM sqlite_master WHERE type = 'index';
+} {}
+
+db close
+sqlite3 db test.db
+sqlite3_db_config db DEFENSIVE 0
+do_execsql_test e_reindex-1.2 {
+  DELETE FROM t1 WHERE a = 3;
+  INSERT INTO t1 VALUES(7, 8);
+  INSERT INTO t1 VALUES(9, 10);
+  PRAGMA writable_schema = 1;
+  INSERT INTO sqlite_master SELECT * FROM saved;
+  DROP TABLE saved;
+} {}
+
+db close
+sqlite3 db test.db
+do_execsql_test e_reindex-1.3 {
+  PRAGMA integrity_check;
+} [list \
+  {wrong # of entries in index i2} \
+  {wrong # of entries in index i1} \
+  {row 3 missing from index i2} \
+  {row 3 missing from index i1} \
+  {row 4 missing from index i2} \
+  {row 4 missing from index i1} 
+]
+
+do_execsql_test e_reindex-1.4 {
+  REINDEX;
+  PRAGMA integrity_check;
+} {ok}
+
+#-------------------------------------------------------------------------
+# The remaining tests in this file focus on testing that the REINDEX 
+# command reindexes the correct subset of the indexes in the database.
+# They all use the following dataset.
+#
+db close
+forcedelete test.db2
+forcedelete test.db
+sqlite3 db test.db
+
+proc sort_by_length {lhs rhs} {
+  set res [expr {[string length $lhs] - [string length $rhs]}]
+  if {$res!=0} {return $res}
+  return [string compare $lhs $rhs]
+}
+array set V {one 1 two 2 three 3 four 4 five 5 six 6 seven 7 eight 8}
+proc sort_by_value {lhs rhs} {
+  global V
+  set res [expr {$V($lhs) - $V($rhs)}]
+  if {$res!=0} {return $res}
+  return [string compare $lhs $rhs]
+}
+
+db collate collA sort_by_length
+db collate collB sort_by_value
+
+set BY(length) {one six two five four eight seven three}
+set BY(value)  {one two three four five six seven eight}
+
+do_execsql_test e_reindex-2.0 {
+  ATTACH 'test.db2' AS aux;
+
+  CREATE TABLE t1(x);
+  CREATE INDEX i1_a ON t1(x COLLATE collA);
+  CREATE INDEX i1_b ON t1(x COLLATE collB);
+  INSERT INTO t1 VALUES('one');
+  INSERT INTO t1 VALUES('two');
+  INSERT INTO t1 VALUES('three');
+  INSERT INTO t1 VALUES('four');
+  INSERT INTO t1 VALUES('five');
+  INSERT INTO t1 VALUES('six');
+  INSERT INTO t1 VALUES('seven');
+  INSERT INTO t1 VALUES('eight');
+
+  CREATE TABLE t2(x);
+  CREATE INDEX i2_a ON t2(x COLLATE collA);
+  CREATE INDEX i2_b ON t2(x COLLATE collB);
+  INSERT INTO t2 SELECT x FROM t1;
+
+  CREATE TABLE aux.t1(x);
+  CREATE INDEX aux.i1_a ON t1(x COLLATE collA);
+  CREATE INDEX aux.i1_b ON t1(x COLLATE collB);
+  INSERT INTO aux.t1 SELECT x FROM main.t1;
+
+} {}
+
+proc test_index {tn tbl collation expected} {
+  set sql "SELECT x FROM $tbl ORDER BY x COLLATE $collation"
+  uplevel do_execsql_test e_reindex-2.$tn [list $sql] [list $::BY($expected)]
+}
+
+proc set_collations {a b} {
+  db collate collA "sort_by_$a"
+  db collate collB "sort_by_$b"
+}
+
+test_index 1.1   t1     collA   length
+test_index 1.2   t1     collB   value
+test_index 1.3   t2     collA   length
+test_index 1.4   t2     collB   value
+test_index 1.5   aux.t1 collA   length
+test_index 1.6   aux.t1 collB   value
+
+
+# EVIDENCE-OF: R-47362-07898 If the REINDEX keyword is not followed by a
+# collation-sequence or database object identifier, then all indices in
+# all attached databases are rebuilt.
+#
+set_collations value length
+do_execsql_test e_reindex-2.2.1 "REINDEX" {}
+test_index 2.2   t1     collA   value
+test_index 2.3   t1     collB   length
+test_index 2.4   t2     collA   value
+test_index 2.5   t2     collB   length
+test_index 2.6   aux.t1 collA   value
+test_index 2.7   aux.t1 collB   length
+
+# EVIDENCE-OF: R-45878-07697 If the REINDEX keyword is followed by a
+# collation-sequence name, then all indices in all attached databases
+# that use the named collation sequences are recreated.
+#
+set_collations length value
+do_execsql_test e_reindex-2.3.1 "REINDEX collA" {}
+test_index 3.2   t1     collA   length
+test_index 3.3   t1     collB   length
+test_index 3.4   t2     collA   length
+test_index 3.5   t2     collB   length
+test_index 3.6   aux.t1 collA   length
+test_index 3.7   aux.t1 collB   length
+do_execsql_test e_reindex-2.3.8 "REINDEX collB" {}
+test_index 3.9   t1     collA   length
+test_index 3.10  t1     collB   value
+test_index 3.11  t2     collA   length
+test_index 3.12  t2     collB   value
+test_index 3.13  aux.t1 collA   length
+test_index 3.14  aux.t1 collB   value
+
+# EVIDENCE-OF: R-49616-30196 Or, if the argument attached to the REINDEX
+# identifies a specific database table, then all indices attached to the
+# database table are rebuilt.
+#
+set_collations value length
+do_execsql_test e_reindex-2.4.1 "REINDEX t1" {}
+test_index 4.2   t1     collA   value
+test_index 4.3   t1     collB   length
+test_index 4.4   t2     collA   length
+test_index 4.5   t2     collB   value
+test_index 4.6   aux.t1 collA   length
+test_index 4.7   aux.t1 collB   value
+do_execsql_test e_reindex-2.4.8 "REINDEX aux.t1" {}
+test_index 4.9   t1     collA   value
+test_index 4.10  t1     collB   length
+test_index 4.11  t2     collA   length
+test_index 4.12  t2     collB   value
+test_index 4.13  aux.t1 collA   value
+test_index 4.14  aux.t1 collB   length
+do_execsql_test e_reindex-2.4.15 "REINDEX t2" {}
+test_index 4.16  t1     collA   value
+test_index 4.17  t1     collB   length
+test_index 4.18  t2     collA   value
+test_index 4.19  t2     collB   length
+test_index 4.20  aux.t1 collA   value
+test_index 4.21  aux.t1 collB   length
+
+# EVIDENCE-OF: R-58823-28748 If it identifies a specific database index,
+# then just that index is recreated.
+#
+set_collations length value
+do_execsql_test e_reindex-2.5.1 "REINDEX i1_a" {}
+test_index 5.2   t1     collA   length
+test_index 5.3   t1     collB   length
+test_index 5.4   t2     collA   value
+test_index 5.5   t2     collB   length
+test_index 5.6   aux.t1 collA   value
+test_index 5.7   aux.t1 collB   length
+do_execsql_test e_reindex-2.5.8 "REINDEX i2_b" {}
+test_index 5.9   t1     collA   length
+test_index 5.10  t1     collB   length
+test_index 5.11  t2     collA   value
+test_index 5.12  t2     collB   value
+test_index 5.13  aux.t1 collA   value
+test_index 5.14  aux.t1 collB   length
+do_execsql_test e_reindex-2.5.15 "REINDEX aux.i1_b" {}
+test_index 5.16  t1     collA   length
+test_index 5.17  t1     collB   length
+test_index 5.18  t2     collA   value
+test_index 5.19  t2     collB   value
+test_index 5.20  aux.t1 collA   value
+test_index 5.21  aux.t1 collB   value
+do_execsql_test e_reindex-2.5.22 "REINDEX i1_b" {}
+test_index 5.23  t1     collA   length
+test_index 5.24  t1     collB   value
+test_index 5.25  t2     collA   value
+test_index 5.26  t2     collB   value
+test_index 5.27  aux.t1 collA   value
+test_index 5.28  aux.t1 collB   value
+do_execsql_test e_reindex-2.5.29 "REINDEX i2_a" {}
+test_index 5.30  t1     collA   length
+test_index 5.31  t1     collB   value
+test_index 5.32  t2     collA   length
+test_index 5.33  t2     collB   value
+test_index 5.34  aux.t1 collA   value
+test_index 5.35  aux.t1 collB   value
+do_execsql_test e_reindex-2.5.36 "REINDEX aux.i1_a" {}
+test_index 5.37  t1     collA   length
+test_index 5.38  t1     collB   value
+test_index 5.39  t2     collA   length
+test_index 5.40  t2     collB   value
+test_index 5.41  aux.t1 collA   length
+test_index 5.42  aux.t1 collB   value
+
+# EVIDENCE-OF: R-35892-30289 For a command of the form "REINDEX name", a
+# match against collation-name takes precedence over a match against
+# index-name or table-name.
+#
+set_collations value length
+do_execsql_test e_reindex-2.6.0 {
+  CREATE TABLE collA(x);
+  CREATE INDEX icolla_a ON collA(x COLLATE collA);
+  CREATE INDEX icolla_b ON collA(x COLLATE collB);
+
+  INSERT INTO collA SELECT x FROM t1;
+} {}
+
+test_index 6.1   collA  collA   value
+test_index 6.2   collA  collB   length
+
+set_collations length value
+do_execsql_test e_reindex-2.6.3 "REINDEX collA" {}
+test_index 6.4   collA  collA   length
+test_index 6.5   collA  collB   length
+do_execsql_test e_reindex-2.6.3 "REINDEX main.collA" {}
+test_index 6.4   collA  collA   length
+test_index 6.5   collA  collB   value
+
+set_collations value length
+do_execsql_test e_reindex-2.6.6 "REINDEX main.collA" {}
+test_index 6.7   collA  collA   value
+test_index 6.8   collA  collB   length
+
+finish_test
diff --git a/test/e_resolve.test b/test/e_resolve.test
new file mode 100644
index 0000000000000000000000000000000000000000..f4bb1a43174cb39d995b4a63635c941b2943d516
--- /dev/null
+++ b/test/e_resolve.test
@@ -0,0 +1,135 @@
+# 2010 November 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements tests to verify that the "testable statements" in 
+# the lang_naming.html document are correct.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix e_resolve
+
+# An example database schema for testing name resolution:
+#
+set schema {
+  ATTACH 'test.db2' AS at1;
+  ATTACH 'test.db3' AS at2;
+
+  CREATE TABLE   temp.n1(x, y); INSERT INTO temp.n1 VALUES('temp', 'n1');
+  CREATE TRIGGER temp.n3 AFTER INSERT ON n1 BEGIN SELECT 1; END;
+  CREATE INDEX   temp.n4 ON n1(x, y);
+
+  CREATE TABLE   main.n1(x, y); INSERT INTO main.n1 VALUES('main', 'n1');
+  CREATE TABLE   main.n2(x, y); INSERT INTO main.n2 VALUES('main', 'n2');
+  CREATE INDEX   main.n3 ON n2(y, x);
+  CREATE TRIGGER main.n4 BEFORE INSERT ON n2 BEGIN SELECT 1; END;
+
+  CREATE TABLE   at1.n1(x, y);  INSERT INTO at1.n1 VALUES('at1', 'n1');
+  CREATE TABLE   at1.n2(x, y);  INSERT INTO at1.n2 VALUES('at1', 'n2');
+  CREATE TABLE   at1.n3(x, y);  INSERT INTO at1.n3 VALUES('at1', 'n3');
+
+  CREATE TABLE   at2.n1(x, y);  INSERT INTO at2.n1 VALUES('at2', 'n1');
+  CREATE TABLE   at2.n2(x, y);  INSERT INTO at2.n2 VALUES('at2', 'n2');
+  CREATE TABLE   at2.n3(x, y);  INSERT INTO at2.n3 VALUES('at2', 'n3');
+  CREATE TABLE   at2.n4(x, y);  INSERT INTO at2.n4 VALUES('at2', 'n4');
+  CREATE TRIGGER at2.n4 BEFORE INSERT ON n4 BEGIN SELECT 1; END;
+}
+
+proc resolve_reopen_db {} {
+  db close
+  forcedelete test.db test.db2 test.db3
+  sqlite3 db test.db
+  db eval $::schema
+}
+
+
+
+# EVIDENCE-OF: R-33528-20612 If no database is specified as part of the
+# object reference, then SQLite searches the main, temp and all attached
+# databases for an object with a matching name. The temp database is
+# searched first, followed by the main database, followed all attached
+# databases in the order that they were attached. The reference resolves
+# to the first match found.
+#
+resolve_reopen_db
+do_execsql_test 1.1 { SELECT * FROM n1 } {temp n1}
+do_execsql_test 1.2 { SELECT * FROM n2 } {main n2}
+do_execsql_test 1.3 { SELECT * FROM n3 } {at1  n3}
+do_execsql_test 1.4 { SELECT * FROM n4 } {at2  n4}
+
+# EVIDENCE-OF: R-00634-08585 If a schema name is specified as part of an
+# object reference, it must be either "main", or "temp" or the
+# schema-name of an attached database.
+#
+#   Or else it is a "no such table: xxx" error.
+#
+resolve_reopen_db
+do_execsql_test 2.1.1 { SELECT * FROM main.n1 } {main n1}
+do_execsql_test 2.1.2 { SELECT * FROM temp.n1 } {temp n1}
+do_execsql_test 2.1.3 { SELECT * FROM at1.n1 } {at1 n1}
+do_execsql_test 2.1.4 { SELECT * FROM at2.n1 } {at2 n1}
+
+do_catchsql_test 2.2 { SELECT * FROM xxx.n1 } {1 {no such table: xxx.n1}}
+
+# EVIDENCE-OF: R-17446-42210 Like other SQL identifiers, schema names
+# are case-insensitive.
+#
+resolve_reopen_db
+do_execsql_test 3.1 { SELECT * FROM MAIN.n1 } {main n1}
+do_execsql_test 3.2 { SELECT * FROM tEmP.n1 } {temp n1}
+do_execsql_test 3.3 { SELECT * FROM aT1.n1 } {at1 n1}
+do_execsql_test 3.4 { SELECT * FROM At2.n1 } {at2 n1}
+
+# EVIDENCE-OF: R-14755-58619 If a schema name is specified, then only
+# that one schema is searched for the named object.
+#
+do_catchsql_test 4.1 { SELECT * FROM temp.n2 } {1 {no such table: temp.n2}}
+do_catchsql_test 4.2 { SELECT * FROM main.n2 } {0 {main n2}}
+do_catchsql_test 4.3 { SELECT * FROM at1.n2 }  {0 {at1 n2}}
+do_catchsql_test 4.4 { SELECT * FROM at2.n2 }  {0 {at2 n2}}
+
+# EVIDENCE-OF: R-08951-19801 When searching database schemas for a named
+# object, objects of types that cannot be used in the context of the
+# reference are always ignored.
+#
+#   In this case, "types that cannot be used" are triggers and indexes.
+#   The temp and main databases both contain triggers and indexes named
+#   "n3" and "n4". Database "at2" contains a trigger called "n4". And yet:
+#
+do_execsql_test 5.1 { SELECT * FROM n3 } {at1  n3}
+do_execsql_test 5.2 { SELECT * FROM n4 } {at2  n4}
+
+#-------------------------------------------------------------------------
+# EVIDENCE-OF: R-37286-42536 
+#
+db close
+forcedelete test.db file.db
+sqlite3 db test.db
+do_execsql_test 6.1 {
+  ATTACH 'file.db' AS aux;
+  CREATE TABLE t1(x, y);
+  CREATE TEMP TABLE t1(x, y);
+  CREATE TABLE aux.t1(x, y);
+}
+
+do_execsql_test  6.2.0 { DROP TABLE t1 }
+do_catchsql_test 6.2.1 { SELECT * FROM temp.t1 } {1 {no such table: temp.t1}}
+do_catchsql_test 6.2.2 { SELECT * FROM main.t1 } {0 {}}
+do_catchsql_test 6.2.3 { SELECT * FROM aux.t1  } {0 {}}
+
+do_execsql_test  6.3.0 { DROP TABLE t1 }
+do_catchsql_test 6.3.1 { SELECT * FROM main.t1 } {1 {no such table: main.t1}}
+do_catchsql_test 6.3.3 { SELECT * FROM aux.t1  } {0 {}}
+
+do_execsql_test  6.4.0 { DROP TABLE t1 }
+do_catchsql_test 6.4.1 { SELECT * FROM aux.t1 } {1 {no such table: aux.t1}}
+
+finish_test
diff --git a/test/e_select.test b/test/e_select.test
new file mode 100644
index 0000000000000000000000000000000000000000..e2e969dcf9d86a30d2eb9bf030c9bad6263fb980
--- /dev/null
+++ b/test/e_select.test
@@ -0,0 +1,2174 @@
+# 2010 July 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements tests to verify that the "testable statements" in 
+# the lang_select.html document are correct.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !compound {
+  finish_test
+  return
+}
+
+do_execsql_test e_select-1.0 {
+  CREATE TABLE t1(a, b);
+  INSERT INTO t1 VALUES('a', 'one');
+  INSERT INTO t1 VALUES('b', 'two');
+  INSERT INTO t1 VALUES('c', 'three');
+
+  CREATE TABLE t2(a, b);
+  INSERT INTO t2 VALUES('a', 'I');
+  INSERT INTO t2 VALUES('b', 'II');
+  INSERT INTO t2 VALUES('c', 'III');
+
+  CREATE TABLE t3(a, c);
+  INSERT INTO t3 VALUES('a', 1);
+  INSERT INTO t3 VALUES('b', 2);
+
+  CREATE TABLE t4(a, c);
+  INSERT INTO t4 VALUES('a', NULL);
+  INSERT INTO t4 VALUES('b', 2);
+} {}
+set t1_cross_t2 [list                \
+   a one   a I      a one   b II     \
+   a one   c III    b two   a I      \
+   b two   b II     b two   c III    \
+   c three a I      c three b II     \
+   c three c III                     \
+]
+set t1_cross_t1 [list                  \
+   a one   a one      a one   b two    \
+   a one   c three    b two   a one    \
+   b two   b two      b two   c three  \
+   c three a one      c three b two    \
+   c three c three                     \
+]
+
+
+# This proc is a specialized version of [do_execsql_test].
+#
+# The second argument to this proc must be a SELECT statement that 
+# features a cross join of some time. Instead of the usual ",", 
+# "CROSS JOIN" or "INNER JOIN" join-op, the string %JOIN% must be 
+# substituted.
+#
+# This test runs the SELECT three times - once with:
+#
+#   * s/%JOIN%/,/
+#   * s/%JOIN%/JOIN/
+#   * s/%JOIN%/INNER JOIN/
+#   * s/%JOIN%/CROSS JOIN/
+#
+# and checks that each time the results of the SELECT are $res.
+#
+proc do_join_test {tn select res} {
+  foreach {tn2 joinop} [list    1 ,    2 "CROSS JOIN"    3 "INNER JOIN"] {
+    set S [string map [list %JOIN% $joinop] $select]
+    uplevel do_execsql_test $tn.$tn2 [list $S] [list $res]
+  }
+}
+
+#-------------------------------------------------------------------------
+# The following tests check that all paths on the syntax diagrams on
+# the lang_select.html page may be taken.
+#
+# -- syntax diagram join-constraint
+#
+do_join_test e_select-0.1.1 {
+  SELECT count(*) FROM t1 %JOIN% t2 ON (t1.a=t2.a)
+} {3}
+do_join_test e_select-0.1.2 {
+  SELECT count(*) FROM t1 %JOIN% t2 USING (a)
+} {3}
+do_join_test e_select-0.1.3 {
+  SELECT count(*) FROM t1 %JOIN% t2
+} {9}
+do_catchsql_test e_select-0.1.4 {
+  SELECT count(*) FROM t1, t2 ON (t1.a=t2.a) USING (a)
+} {1 {near "USING": syntax error}}
+do_catchsql_test e_select-0.1.5 {
+  SELECT count(*) FROM t1, t2 USING (a) ON (t1.a=t2.a)
+} {1 {near "ON": syntax error}}
+
+# -- syntax diagram select-core
+#
+#   0: SELECT ...
+#   1: SELECT DISTINCT ...
+#   2: SELECT ALL ...
+#
+#   0: No FROM clause
+#   1: Has FROM clause
+#
+#   0: No WHERE clause
+#   1: Has WHERE clause
+#
+#   0: No GROUP BY clause
+#   1: Has GROUP BY clause
+#   2: Has GROUP BY and HAVING clauses
+#
+do_select_tests e_select-0.2 {
+  0000.1  "SELECT 1, 2, 3 " {1 2 3}
+  1000.1  "SELECT DISTINCT 1, 2, 3 " {1 2 3}
+  2000.1  "SELECT ALL 1, 2, 3 " {1 2 3}
+  
+  0100.1  "SELECT a, b, a||b FROM t1 " {
+    a one aone b two btwo c three cthree
+  }
+  1100.1  "SELECT DISTINCT a, b, a||b FROM t1 " {
+    a one aone b two btwo c three cthree
+  }
+  1200.1  "SELECT ALL a, b, a||b FROM t1 " {
+    a one aone b two btwo c three cthree
+  }
+
+  0010.1  "SELECT 1, 2, 3 WHERE 1 " {1 2 3}
+  0010.2  "SELECT 1, 2, 3 WHERE 0 " {}
+  0010.3  "SELECT 1, 2, 3 WHERE NULL " {}
+
+  1010.1  "SELECT DISTINCT 1, 2, 3 WHERE 1 " {1 2 3}
+
+  2010.1  "SELECT ALL 1, 2, 3 WHERE 1 " {1 2 3}
+
+  0110.1  "SELECT a, b, a||b FROM t1 WHERE a!='x' " {
+    a one aone b two btwo c three cthree
+  }
+  0110.2  "SELECT a, b, a||b FROM t1 WHERE a=='x'" {}
+
+  1110.1  "SELECT DISTINCT a, b, a||b FROM t1 WHERE a!='x' " {
+    a one aone b two btwo c three cthree
+  }
+
+  2110.0  "SELECT ALL a, b, a||b FROM t1 WHERE a=='x'" {}
+
+  0001.1  "SELECT 1, 2, 3 GROUP BY 2" {1 2 3}
+  0002.1  "SELECT 1, 2, 3 GROUP BY 2 HAVING count(*)=1" {1 2 3}
+  0002.2  "SELECT 1, 2, 3 GROUP BY 2 HAVING count(*)>1" {}
+
+  1001.1  "SELECT DISTINCT 1, 2, 3 GROUP BY 2" {1 2 3}
+  1002.1  "SELECT DISTINCT 1, 2, 3 GROUP BY 2 HAVING count(*)=1" {1 2 3}
+  1002.2  "SELECT DISTINCT 1, 2, 3 GROUP BY 2 HAVING count(*)>1" {}
+
+  2001.1  "SELECT ALL 1, 2, 3 GROUP BY 2" {1 2 3}
+  2002.1  "SELECT ALL 1, 2, 3 GROUP BY 2 HAVING count(*)=1" {1 2 3}
+  2002.2  "SELECT ALL 1, 2, 3 GROUP BY 2 HAVING count(*)>1" {}
+
+  0101.1  "SELECT count(*), max(a) FROM t1 GROUP BY b" {1 a 1 c 1 b}
+  0102.1  "SELECT count(*), max(a) FROM t1 GROUP BY b HAVING count(*)=1" {
+    1 a 1 c 1 b
+  }
+  0102.2  "SELECT count(*), max(a) FROM t1 GROUP BY b HAVING count(*)=2" {}
+
+  1101.1  "SELECT DISTINCT count(*), max(a) FROM t1 GROUP BY b" {1 a 1 c 1 b}
+  1102.1  "SELECT DISTINCT count(*), max(a) FROM t1 
+           GROUP BY b HAVING count(*)=1" {
+    1 a 1 c 1 b
+  }
+  1102.2  "SELECT DISTINCT count(*), max(a) FROM t1 
+           GROUP BY b HAVING count(*)=2" {}
+
+  2101.1  "SELECT ALL count(*), max(a) FROM t1 GROUP BY b" {1 a 1 c 1 b}
+  2102.1  "SELECT ALL count(*), max(a) FROM t1 
+           GROUP BY b HAVING count(*)=1" {
+    1 a 1 c 1 b
+  }
+  2102.2  "SELECT ALL count(*), max(a) FROM t1 
+           GROUP BY b HAVING count(*)=2" {}
+
+  0011.1  "SELECT 1, 2, 3 WHERE 1 GROUP BY 2" {1 2 3}
+  0012.1  "SELECT 1, 2, 3 WHERE 0 GROUP BY 2 HAVING count(*)=1" {}
+  0012.2  "SELECT 1, 2, 3 WHERE 0 GROUP BY 2 HAVING count(*)>1" {}
+
+  1011.1  "SELECT DISTINCT 1, 2, 3 WHERE 0 GROUP BY 2" {}
+  1012.1  "SELECT DISTINCT 1, 2, 3 WHERE 1 GROUP BY 2 HAVING count(*)=1" 
+          {1 2 3}
+  1012.2  "SELECT DISTINCT 1, 2, 3 WHERE NULL GROUP BY 2 HAVING count(*)>1" {}
+
+  2011.1  "SELECT ALL 1, 2, 3 WHERE 1 GROUP BY 2" {1 2 3}
+  2012.1  "SELECT ALL 1, 2, 3 WHERE 0 GROUP BY 2 HAVING count(*)=1" {}
+  2012.2  "SELECT ALL 1, 2, 3 WHERE 'abc' GROUP BY 2 HAVING count(*)>1" {}
+
+  0111.1  "SELECT count(*), max(a) FROM t1 WHERE a='a' GROUP BY b" {1 a}
+  0112.1  "SELECT count(*), max(a) FROM t1 
+           WHERE a='c' GROUP BY b HAVING count(*)=1" {1 c}
+  0112.2  "SELECT count(*), max(a) FROM t1 
+           WHERE 0 GROUP BY b HAVING count(*)=2" {}
+  1111.1  "SELECT DISTINCT count(*), max(a) FROM t1 WHERE a<'c' GROUP BY b" 
+          {1 a 1 b}
+  1112.1  "SELECT DISTINCT count(*), max(a) FROM t1 WHERE a>'a'
+           GROUP BY b HAVING count(*)=1" {
+    1 c 1 b
+  }
+  1112.2  "SELECT DISTINCT count(*), max(a) FROM t1 WHERE 0
+           GROUP BY b HAVING count(*)=2" {}
+
+  2111.1  "SELECT ALL count(*), max(a) FROM t1 WHERE b>'one' GROUP BY b" 
+          {1 c 1 b}
+  2112.1  "SELECT ALL count(*), max(a) FROM t1 WHERE a!='b'
+           GROUP BY b HAVING count(*)=1" {
+    1 a 1 c
+  }
+  2112.2  "SELECT ALL count(*), max(a) FROM t1 
+           WHERE 0 GROUP BY b HAVING count(*)=2" {}
+}
+
+
+# -- syntax diagram result-column
+#
+do_select_tests e_select-0.3 {
+  1  "SELECT * FROM t1" {a one b two c three}
+  2  "SELECT t1.* FROM t1" {a one b two c three}
+  3  "SELECT 'x'||a||'x' FROM t1" {xax xbx xcx}
+  4  "SELECT 'x'||a||'x' alias FROM t1" {xax xbx xcx}
+  5  "SELECT 'x'||a||'x' AS alias FROM t1" {xax xbx xcx}
+}
+
+# -- syntax diagram join-source
+#
+# -- syntax diagram join-op
+#
+do_select_tests e_select-0.4 {
+  1  "SELECT t1.rowid FROM t1" {1 2 3}
+  2  "SELECT t1.rowid FROM t1,t2" {1 1 1 2 2 2 3 3 3}
+  3  "SELECT t1.rowid FROM t1,t2,t3" {1 1 1 1 1 1 2 2 2 2 2 2 3 3 3 3 3 3}
+
+  4  "SELECT t1.rowid FROM t1" {1 2 3}
+  5  "SELECT t1.rowid FROM t1 JOIN t2" {1 1 1 2 2 2 3 3 3}
+  6  "SELECT t1.rowid FROM t1 JOIN t2 JOIN t3" 
+     {1 1 1 1 1 1 2 2 2 2 2 2 3 3 3 3 3 3}
+
+  7  "SELECT t1.rowid FROM t1 NATURAL JOIN t3" {1 2}
+  8  "SELECT t1.rowid FROM t1 NATURAL LEFT OUTER JOIN t3" {1 2 3}
+  9  "SELECT t1.rowid FROM t1 NATURAL LEFT JOIN t3" {1 2 3}
+  10 "SELECT t1.rowid FROM t1 NATURAL INNER JOIN t3" {1 2}
+  11 "SELECT t1.rowid FROM t1 NATURAL CROSS JOIN t3" {1 2}
+
+  12 "SELECT t1.rowid FROM t1 JOIN t3" {1 1 2 2 3 3}
+  13 "SELECT t1.rowid FROM t1 LEFT OUTER JOIN t3" {1 1 2 2 3 3}
+  14 "SELECT t1.rowid FROM t1 LEFT JOIN t3" {1 1 2 2 3 3}
+  15 "SELECT t1.rowid FROM t1 INNER JOIN t3" {1 1 2 2 3 3}
+  16 "SELECT t1.rowid FROM t1 CROSS JOIN t3" {1 1 2 2 3 3}
+}
+
+# -- syntax diagram compound-operator
+#
+do_select_tests e_select-0.5 {
+  1  "SELECT rowid FROM t1 UNION ALL SELECT rowid+2 FROM t4" {1 2 3 3 4}
+  2  "SELECT rowid FROM t1 UNION     SELECT rowid+2 FROM t4" {1 2 3 4}
+  3  "SELECT rowid FROM t1 INTERSECT SELECT rowid+2 FROM t4" {3}
+  4  "SELECT rowid FROM t1 EXCEPT    SELECT rowid+2 FROM t4" {1 2}
+}
+
+# -- syntax diagram ordering-term
+#
+do_select_tests e_select-0.6 {
+  1  "SELECT b||a FROM t1 ORDER BY b||a"                  {onea threec twob}
+  2  "SELECT b||a FROM t1 ORDER BY (b||a) COLLATE nocase" {onea threec twob}
+  3  "SELECT b||a FROM t1 ORDER BY (b||a) ASC"            {onea threec twob}
+  4  "SELECT b||a FROM t1 ORDER BY (b||a) DESC"           {twob threec onea}
+}
+
+# -- syntax diagram select-stmt
+#
+do_select_tests e_select-0.7 {
+  1  "SELECT * FROM t1" {a one b two c three}
+  2  "SELECT * FROM t1 ORDER BY b" {a one c three b two}
+  3  "SELECT * FROM t1 ORDER BY b, a" {a one c three b two}
+
+  4  "SELECT * FROM t1 LIMIT 10" {a one b two c three}
+  5  "SELECT * FROM t1 LIMIT 10 OFFSET 5" {}
+  6  "SELECT * FROM t1 LIMIT 10, 5" {}
+
+  7  "SELECT * FROM t1 ORDER BY a LIMIT 10" {a one b two c three}
+  8  "SELECT * FROM t1 ORDER BY b LIMIT 10 OFFSET 5" {}
+  9  "SELECT * FROM t1 ORDER BY a,b LIMIT 10, 5" {}
+
+  10  "SELECT * FROM t1 UNION SELECT b, a FROM t1" 
+     {a one b two c three one a three c two b}
+  11  "SELECT * FROM t1 UNION SELECT b, a FROM t1 ORDER BY b" 
+     {one a two b three c a one c three b two}
+  12  "SELECT * FROM t1 UNION SELECT b, a FROM t1 ORDER BY b, a" 
+     {one a two b three c a one c three b two}
+  13  "SELECT * FROM t1 UNION SELECT b, a FROM t1 LIMIT 10" 
+     {a one b two c three one a three c two b}
+  14  "SELECT * FROM t1 UNION SELECT b, a FROM t1 LIMIT 10 OFFSET 5" 
+     {two b}
+  15  "SELECT * FROM t1 UNION SELECT b, a FROM t1 LIMIT 10, 5" 
+     {}
+  16  "SELECT * FROM t1 UNION SELECT b, a FROM t1 ORDER BY a LIMIT 10" 
+     {a one b two c three one a three c two b}
+  17  "SELECT * FROM t1 UNION SELECT b, a FROM t1 ORDER BY b LIMIT 10 OFFSET 5" 
+     {b two}
+  18  "SELECT * FROM t1 UNION SELECT b, a FROM t1 ORDER BY a,b LIMIT 10, 5" 
+     {}
+}
+
+#-------------------------------------------------------------------------
+# The following tests focus on FROM clause (join) processing.
+#
+
+# EVIDENCE-OF: R-16074-54196 If the FROM clause is omitted from a simple
+# SELECT statement, then the input data is implicitly a single row zero
+# columns wide
+#
+do_select_tests e_select-1.1 {
+  1 "SELECT 'abc'"            {abc}
+  2 "SELECT 'abc' WHERE NULL" {}
+  3 "SELECT NULL"             {{}}
+  4 "SELECT count(*)"         {1}
+  5 "SELECT count(*) WHERE 0" {0}
+  6 "SELECT count(*) WHERE 1" {1}
+}
+
+# EVIDENCE-OF: R-45424-07352 If there is only a single table or subquery
+# in the FROM clause, then the input data used by the SELECT statement
+# is the contents of the named table.
+#
+#   The results of the SELECT queries suggest that they are operating on the
+#   contents of the table 'xx'.
+#
+do_execsql_test e_select-1.2.0 {
+  CREATE TABLE xx(x, y);
+  INSERT INTO xx VALUES('IiJlsIPepMuAhU', X'10B00B897A15BAA02E3F98DCE8F2');
+  INSERT INTO xx VALUES(NULL, -16.87);
+  INSERT INTO xx VALUES(-17.89, 'linguistically');
+} {}
+do_select_tests e_select-1.2 {
+  1  "SELECT quote(x), quote(y) FROM xx" {
+     'IiJlsIPepMuAhU' X'10B00B897A15BAA02E3F98DCE8F2' 
+     NULL             -16.87                          
+     -17.89           'linguistically'                
+  }
+
+  2  "SELECT count(*), count(x), count(y) FROM xx" {3 2 3}
+  3  "SELECT sum(x), sum(y) FROM xx"               {-17.89 -16.87}
+}
+
+# EVIDENCE-OF: R-28355-09804 If there is more than one table or subquery
+# in FROM clause then the contents of all tables and/or subqueries are
+# joined into a single dataset for the simple SELECT statement to
+# operate on.
+#
+#   There are more detailed tests for subsequent requirements that add 
+#   more detail to this idea. We just add a single test that shows that
+#   data is coming from each of the three tables following the FROM clause
+#   here to show that the statement, vague as it is, is not incorrect.
+#
+do_select_tests e_select-1.3 {
+  1 "SELECT * FROM t1, t2, t3" {
+      a one a I a 1 a one a I b 2 a one b II a 1 
+      a one b II b 2 a one c III a 1 a one c III b 2 
+      b two a I a 1 b two a I b 2 b two b II a 1 
+      b two b II b 2 b two c III a 1 b two c III b 2 
+      c three a I a 1 c three a I b 2 c three b II a 1 
+      c three b II b 2 c three c III a 1 c three c III b 2
+  }
+}
+
+#
+# The following block of tests - e_select-1.4.* - test that the description
+# of cartesian joins in the SELECT documentation is consistent with SQLite.
+# In doing so, we test the following three requirements as a side-effect:
+#
+# EVIDENCE-OF: R-49872-03192 If the join-operator is "CROSS JOIN",
+# "INNER JOIN", "JOIN" or a comma (",") and there is no ON or USING
+# clause, then the result of the join is simply the cartesian product of
+# the left and right-hand datasets.
+#
+#    The tests are built on this assertion. Really, they test that the output
+#    of a CROSS JOIN, JOIN, INNER JOIN or "," join matches the expected result
+#    of calculating the cartesian product of the left and right-hand datasets. 
+#
+# EVIDENCE-OF: R-46256-57243 There is no difference between the "INNER
+# JOIN", "JOIN" and "," join operators.
+#
+# EVIDENCE-OF: R-25071-21202 The "CROSS JOIN" join operator produces the
+# same result as the "INNER JOIN", "JOIN" and "," operators
+#
+#    All tests are run 4 times, with the only difference in each run being
+#    which of the 4 equivalent cartesian product join operators are used.
+#    Since the output data is the same in all cases, we consider that this
+#    qualifies as testing the two statements above.
+#
+do_execsql_test e_select-1.4.0 {
+  CREATE TABLE x1(a, b);
+  CREATE TABLE x2(c, d, e);
+  CREATE TABLE x3(f, g, h, i);
+
+  -- x1: 3 rows, 2 columns
+  INSERT INTO x1 VALUES(24, 'converging');
+  INSERT INTO x1 VALUES(NULL, X'CB71');
+  INSERT INTO x1 VALUES('blonds', 'proprietary');
+
+  -- x2: 2 rows, 3 columns
+  INSERT INTO x2 VALUES(-60.06, NULL, NULL);
+  INSERT INTO x2 VALUES(-58, NULL, 1.21);
+
+  -- x3: 5 rows, 4 columns
+  INSERT INTO x3 VALUES(-39.24, NULL, 'encompass', -1);
+  INSERT INTO x3 VALUES('presenting', 51, 'reformation', 'dignified');
+  INSERT INTO x3 VALUES('conducting', -87.24, 37.56, NULL);
+  INSERT INTO x3 VALUES('coldest', -96, 'dramatists', 82.3);
+  INSERT INTO x3 VALUES('alerting', NULL, -93.79, NULL);
+} {}
+
+# EVIDENCE-OF: R-59089-25828 The columns of the cartesian product
+# dataset are, in order, all the columns of the left-hand dataset
+# followed by all the columns of the right-hand dataset.
+#
+do_join_test e_select-1.4.1.1 {
+  SELECT * FROM x1 %JOIN% x2 LIMIT 1
+} [concat {24 converging} {-60.06 {} {}}]
+
+do_join_test e_select-1.4.1.2 {
+  SELECT * FROM x2 %JOIN% x1 LIMIT 1
+} [concat {-60.06 {} {}} {24 converging}]
+
+do_join_test e_select-1.4.1.3 {
+  SELECT * FROM x3 %JOIN% x2 LIMIT 1
+} [concat {-39.24 {} encompass -1} {-60.06 {} {}}]
+
+do_join_test e_select-1.4.1.4 {
+  SELECT * FROM x2 %JOIN% x3 LIMIT 1
+} [concat {-60.06 {} {}} {-39.24 {} encompass -1}]
+
+# EVIDENCE-OF: R-44414-54710 There is a row in the cartesian product
+# dataset formed by combining each unique combination of a row from the
+# left-hand and right-hand datasets.
+#
+do_join_test e_select-1.4.2.1 {
+  SELECT * FROM x2 %JOIN% x3 ORDER BY +c, +f
+} [list -60.06 {} {}      -39.24 {} encompass -1                 \
+        -60.06 {} {}      alerting {} -93.79 {}                  \
+        -60.06 {} {}      coldest -96 dramatists 82.3            \
+        -60.06 {} {}      conducting -87.24 37.56 {}             \
+        -60.06 {} {}      presenting 51 reformation dignified    \
+        -58 {} 1.21       -39.24 {} encompass -1                 \
+        -58 {} 1.21       alerting {} -93.79 {}                  \
+        -58 {} 1.21       coldest -96 dramatists 82.3            \
+        -58 {} 1.21       conducting -87.24 37.56 {}             \
+        -58 {} 1.21       presenting 51 reformation dignified    \
+]
+# TODO: Come back and add a few more like the above.
+
+# EVIDENCE-OF: R-18439-38548 In other words, if the left-hand dataset
+# consists of Nleft rows of Mleft columns, and the right-hand dataset of
+# Nright rows of Mright columns, then the cartesian product is a dataset
+# of Nleft&times;Nright rows, each containing Mleft+Mright columns.
+#
+# x1, x2    (Nlhs=3, Nrhs=2)   (Mlhs=2, Mrhs=3)
+do_join_test e_select-1.4.3.1 { 
+  SELECT count(*) FROM x1 %JOIN% x2 
+} [expr 3*2]
+do_test e_select-1.4.3.2 { 
+  expr {[llength [execsql {SELECT * FROM x1, x2}]] / 6}
+} [expr 2+3]
+
+# x2, x3    (Nlhs=2, Nrhs=5)   (Mlhs=3, Mrhs=4)
+do_join_test e_select-1.4.3.3 { 
+  SELECT count(*) FROM x2 %JOIN% x3 
+} [expr 2*5]
+do_test e_select-1.4.3.4 { 
+  expr {[llength [execsql {SELECT * FROM x2 JOIN x3}]] / 10}
+} [expr 3+4]
+
+# x3, x1    (Nlhs=5, Nrhs=3)   (Mlhs=4, Mrhs=2)
+do_join_test e_select-1.4.3.5 { 
+  SELECT count(*) FROM x3 %JOIN% x1 
+} [expr 5*3]
+do_test e_select-1.4.3.6 { 
+  expr {[llength [execsql {SELECT * FROM x3 CROSS JOIN x1}]] / 15}
+} [expr 4+2]
+
+# x3, x3    (Nlhs=5, Nrhs=5)   (Mlhs=4, Mrhs=4)
+do_join_test e_select-1.4.3.7 { 
+  SELECT count(*) FROM x3 %JOIN% x3 
+} [expr 5*5]
+do_test e_select-1.4.3.8 { 
+  expr {[llength [execsql {SELECT * FROM x3 INNER JOIN x3 AS x4}]] / 25}
+} [expr 4+4]
+
+# Some extra cartesian product tests using tables t1 and t2.
+#
+do_execsql_test e_select-1.4.4.1 { SELECT * FROM t1, t2 } $t1_cross_t2
+do_execsql_test e_select-1.4.4.2 { SELECT * FROM t1 AS x, t1 AS y} $t1_cross_t1
+
+do_select_tests e_select-1.4.5 [list                                   \
+    1 { SELECT * FROM t1 CROSS JOIN t2 }           $t1_cross_t2        \
+    2 { SELECT * FROM t1 AS y CROSS JOIN t1 AS x } $t1_cross_t1        \
+    3 { SELECT * FROM t1 INNER JOIN t2 }           $t1_cross_t2        \
+    4 { SELECT * FROM t1 AS y INNER JOIN t1 AS x } $t1_cross_t1        \
+]
+
+# EVIDENCE-OF: R-38465-03616 If there is an ON clause then the ON
+# expression is evaluated for each row of the cartesian product as a
+# boolean expression. Only rows for which the expression evaluates to
+# true are included from the dataset.
+#
+foreach {tn select res} [list                                              \
+    1 { SELECT * FROM t1 %JOIN% t2 ON (1) }       $t1_cross_t2             \
+    2 { SELECT * FROM t1 %JOIN% t2 ON (0) }       [list]                   \
+    3 { SELECT * FROM t1 %JOIN% t2 ON (NULL) }    [list]                   \
+    4 { SELECT * FROM t1 %JOIN% t2 ON ('abc') }   [list]                   \
+    5 { SELECT * FROM t1 %JOIN% t2 ON ('1ab') }   $t1_cross_t2             \
+    6 { SELECT * FROM t1 %JOIN% t2 ON (0.9) }     $t1_cross_t2             \
+    7 { SELECT * FROM t1 %JOIN% t2 ON ('0.9') }   $t1_cross_t2             \
+    8 { SELECT * FROM t1 %JOIN% t2 ON (0.0) }     [list]                   \
+                                                                           \
+    9 { SELECT t1.b, t2.b FROM t1 %JOIN% t2 ON (t1.a = t2.a) }             \
+      {one I two II three III}                                             \
+   10 { SELECT t1.b, t2.b FROM t1 %JOIN% t2 ON (t1.a = 'a') }              \
+      {one I one II one III}                                               \
+   11 { SELECT t1.b, t2.b 
+        FROM t1 %JOIN% t2 ON (CASE WHEN t1.a = 'a' THEN NULL ELSE 1 END) } \
+      {two I two II two III three I three II three III}                    \
+] {
+  do_join_test e_select-1.3.$tn $select $res
+}
+
+# EVIDENCE-OF: R-49933-05137 If there is a USING clause then each of the
+# column names specified must exist in the datasets to both the left and
+# right of the join-operator.
+#
+do_select_tests e_select-1.4 -error {
+  cannot join using column %s - column not present in both tables
+} {
+  1 { SELECT * FROM t1, t3 USING (b) }   "b"
+  2 { SELECT * FROM t3, t1 USING (c) }   "c"
+  3 { SELECT * FROM t3, (SELECT a AS b, b AS c FROM t1) USING (a) }   "a"
+} 
+
+# EVIDENCE-OF: R-22776-52830 For each pair of named columns, the
+# expression "lhs.X = rhs.X" is evaluated for each row of the cartesian
+# product as a boolean expression. Only rows for which all such
+# expressions evaluates to true are included from the result set.
+#
+do_select_tests e_select-1.5 {
+  1 { SELECT * FROM t1, t3 USING (a)   }  {a one 1 b two 2}
+  2 { SELECT * FROM t3, t4 USING (a,c) }  {b 2}
+} 
+
+# EVIDENCE-OF: R-54046-48600 When comparing values as a result of a
+# USING clause, the normal rules for handling affinities, collation
+# sequences and NULL values in comparisons apply.
+#
+# EVIDENCE-OF: R-38422-04402 The column from the dataset on the
+# left-hand side of the join-operator is considered to be on the
+# left-hand side of the comparison operator (=) for the purposes of
+# collation sequence and affinity precedence.
+#
+do_execsql_test e_select-1.6.0 {
+  CREATE TABLE t5(a COLLATE nocase, b COLLATE binary);
+  INSERT INTO t5 VALUES('AA', 'cc');
+  INSERT INTO t5 VALUES('BB', 'dd');
+  INSERT INTO t5 VALUES(NULL, NULL);
+  CREATE TABLE t6(a COLLATE binary, b COLLATE nocase);
+  INSERT INTO t6 VALUES('aa', 'cc');
+  INSERT INTO t6 VALUES('bb', 'DD');
+  INSERT INTO t6 VALUES(NULL, NULL);
+} {}
+foreach {tn select res} {
+  1 { SELECT * FROM t5 %JOIN% t6 USING (a) } {AA cc cc BB dd DD}
+  2 { SELECT * FROM t6 %JOIN% t5 USING (a) } {}
+  3 { SELECT * FROM (SELECT a COLLATE nocase, b FROM t6) %JOIN% t5 USING (a) } 
+    {aa cc cc bb DD dd}
+  4 { SELECT * FROM t5 %JOIN% t6 USING (a,b) } {AA cc}
+  5 { SELECT * FROM t6 %JOIN% t5 USING (a,b) } {}
+} {
+  do_join_test e_select-1.6.$tn $select $res
+}
+
+# EVIDENCE-OF: R-57047-10461 For each pair of columns identified by a
+# USING clause, the column from the right-hand dataset is omitted from
+# the joined dataset.
+#
+# EVIDENCE-OF: R-56132-15700 This is the only difference between a USING
+# clause and its equivalent ON constraint.
+#
+foreach {tn select res} {
+  1a { SELECT * FROM t1 %JOIN% t2 USING (a)      } 
+     {a one I b two II c three III}
+  1b { SELECT * FROM t1 %JOIN% t2 ON (t1.a=t2.a) }
+     {a one a I b two b II c three c III}
+
+  2a { SELECT * FROM t3 %JOIN% t4 USING (a)      }  
+     {a 1 {} b 2 2}
+  2b { SELECT * FROM t3 %JOIN% t4 ON (t3.a=t4.a) } 
+     {a 1 a {} b 2 b 2}
+
+  3a { SELECT * FROM t3 %JOIN% t4 USING (a,c)                  } {b 2}
+  3b { SELECT * FROM t3 %JOIN% t4 ON (t3.a=t4.a AND t3.c=t4.c) } {b 2 b 2}
+
+  4a { SELECT * FROM (SELECT a COLLATE nocase, b FROM t6) AS x 
+       %JOIN% t5 USING (a) } 
+     {aa cc cc bb DD dd}
+  4b { SELECT * FROM (SELECT a COLLATE nocase, b FROM t6) AS x
+       %JOIN% t5 ON (x.a=t5.a) } 
+     {aa cc AA cc bb DD BB dd}
+} {
+  do_join_test e_select-1.7.$tn $select $res
+}
+
+# EVIDENCE-OF: R-24610-05866 If the join-operator is a "LEFT JOIN" or
+# "LEFT OUTER JOIN", then after the ON or USING filtering clauses have
+# been applied, an extra row is added to the output for each row in the
+# original left-hand input dataset that does not match any row in the
+# right-hand dataset.
+#
+do_execsql_test e_select-1.8.0 {
+  CREATE TABLE t7(a, b, c);
+  CREATE TABLE t8(a, d, e);
+
+  INSERT INTO t7 VALUES('x', 'ex',  24);
+  INSERT INTO t7 VALUES('y', 'why', 25);
+
+  INSERT INTO t8 VALUES('x', 'abc', 24);
+  INSERT INTO t8 VALUES('z', 'ghi', 26);
+} {}
+
+do_select_tests e_select-1.8 {
+  1a "SELECT count(*) FROM t7 JOIN t8 ON (t7.a=t8.a)" {1}
+  1b "SELECT count(*) FROM t7 LEFT JOIN t8 ON (t7.a=t8.a)" {2}
+  2a "SELECT count(*) FROM t7 JOIN t8 USING (a)" {1}
+  2b "SELECT count(*) FROM t7 LEFT JOIN t8 USING (a)" {2}
+}
+
+
+# EVIDENCE-OF: R-15607-52988 The added rows contain NULL values in the
+# columns that would normally contain values copied from the right-hand
+# input dataset.
+#
+do_select_tests e_select-1.9 {
+  1a "SELECT * FROM t7 JOIN t8 ON (t7.a=t8.a)" {x ex 24 x abc 24}
+  1b "SELECT * FROM t7 LEFT JOIN t8 ON (t7.a=t8.a)" 
+     {x ex 24 x abc 24 y why 25 {} {} {}}
+  2a "SELECT * FROM t7 JOIN t8 USING (a)" {x ex 24 abc 24}
+  2b "SELECT * FROM t7 LEFT JOIN t8 USING (a)" {x ex 24 abc 24 y why 25 {} {}}
+}
+
+# EVIDENCE-OF: R-04932-55942 If the NATURAL keyword is in the
+# join-operator then an implicit USING clause is added to the
+# join-constraints. The implicit USING clause contains each of the
+# column names that appear in both the left and right-hand input
+# datasets.
+#
+do_select_tests e_select-1-10 {
+  1a "SELECT * FROM t7 JOIN t8 USING (a)"        {x ex 24 abc 24}
+  1b "SELECT * FROM t7 NATURAL JOIN t8"          {x ex 24 abc 24}
+
+  2a "SELECT * FROM t8 JOIN t7 USING (a)"        {x abc 24 ex 24}
+  2b "SELECT * FROM t8 NATURAL JOIN t7"          {x abc 24 ex 24}
+
+  3a "SELECT * FROM t7 LEFT JOIN t8 USING (a)"   {x ex 24 abc 24 y why 25 {} {}}
+  3b "SELECT * FROM t7 NATURAL LEFT JOIN t8"     {x ex 24 abc 24 y why 25 {} {}}
+
+  4a "SELECT * FROM t8 LEFT JOIN t7 USING (a)"   {x abc 24 ex 24 z ghi 26 {} {}}
+  4b "SELECT * FROM t8 NATURAL LEFT JOIN t7"     {x abc 24 ex 24 z ghi 26 {} {}}
+
+  5a "SELECT * FROM t3 JOIN t4 USING (a,c)"      {b 2}
+  5b "SELECT * FROM t3 NATURAL JOIN t4"          {b 2}
+
+  6a "SELECT * FROM t3 LEFT JOIN t4 USING (a,c)" {a 1 b 2}
+  6b "SELECT * FROM t3 NATURAL LEFT JOIN t4"     {a 1 b 2}
+} 
+
+# EVIDENCE-OF: R-49566-01570 If the left and right-hand input datasets
+# feature no common column names, then the NATURAL keyword has no effect
+# on the results of the join.
+#
+do_execsql_test e_select-1.11.0 {
+  CREATE TABLE t10(x, y);
+  INSERT INTO t10 VALUES(1, 'true');
+  INSERT INTO t10 VALUES(0, 'false');
+} {}
+do_select_tests e_select-1-11 {
+  1a "SELECT a, x FROM t1 CROSS JOIN t10" {a 1 a 0 b 1 b 0 c 1 c 0}
+  1b "SELECT a, x FROM t1 NATURAL CROSS JOIN t10" {a 1 a 0 b 1 b 0 c 1 c 0}
+}
+
+# EVIDENCE-OF: R-39625-59133 A USING or ON clause may not be added to a
+# join that specifies the NATURAL keyword.
+#
+foreach {tn sql} {
+  1 {SELECT * FROM t1 NATURAL LEFT JOIN t2 USING (a)}
+  2 {SELECT * FROM t1 NATURAL LEFT JOIN t2 ON (t1.a=t2.a)}
+  3 {SELECT * FROM t1 NATURAL LEFT JOIN t2 ON (45)}
+} {
+  do_catchsql_test e_select-1.12.$tn "
+    $sql
+  " {1 {a NATURAL join may not have an ON or USING clause}}
+}
+
+#-------------------------------------------------------------------------
+# The next block of tests - e_select-3.* - concentrate on verifying 
+# statements made regarding WHERE clause processing.
+#
+drop_all_tables
+do_execsql_test e_select-3.0 {
+  CREATE TABLE x1(k, x, y, z);
+  INSERT INTO x1 VALUES(1, 'relinquished', 'aphasia', 78.43);
+  INSERT INTO x1 VALUES(2, X'A8E8D66F',    X'07CF',   -81);
+  INSERT INTO x1 VALUES(3, -22,            -27.57,    NULL);
+  INSERT INTO x1 VALUES(4, NULL,           'bygone',  'picky');
+  INSERT INTO x1 VALUES(5, NULL,           96.28,     NULL);
+  INSERT INTO x1 VALUES(6, 0,              1,         2);
+
+  CREATE TABLE x2(k, x, y2);
+  INSERT INTO x2 VALUES(1, 50, X'B82838');
+  INSERT INTO x2 VALUES(5, 84.79, 65.88);
+  INSERT INTO x2 VALUES(3, -22, X'0E1BE452A393');
+  INSERT INTO x2 VALUES(7, 'mistrusted', 'standardized');
+} {}
+
+# EVIDENCE-OF: R-60775-64916 If a WHERE clause is specified, the WHERE
+# expression is evaluated for each row in the input data as a boolean
+# expression. Only rows for which the WHERE clause expression evaluates
+# to true are included from the dataset before continuing.
+#
+do_execsql_test e_select-3.1.1 { SELECT k FROM x1 WHERE x }         {3}
+do_execsql_test e_select-3.1.2 { SELECT k FROM x1 WHERE y }         {3 5 6}
+do_execsql_test e_select-3.1.3 { SELECT k FROM x1 WHERE z }         {1 2 6}
+do_execsql_test e_select-3.1.4 { SELECT k FROM x1 WHERE '1'||z    } {1 2 4 6}
+do_execsql_test e_select-3.1.5 { SELECT k FROM x1 WHERE x IS NULL } {4 5}
+do_execsql_test e_select-3.1.6 { SELECT k FROM x1 WHERE z - 78.43 } {2 4 6}
+
+do_execsql_test e_select-3.2.1a {
+  SELECT k FROM x1 LEFT JOIN x2 USING(k)
+} {1 2 3 4 5 6}
+do_execsql_test e_select-3.2.1b {
+  SELECT k FROM x1 LEFT JOIN x2 USING(k) WHERE x2.k ORDER BY +k
+} {1 3 5}
+do_execsql_test e_select-3.2.2 {
+  SELECT k FROM x1 LEFT JOIN x2 USING(k) WHERE x2.k IS NULL
+} {2 4 6}
+
+do_execsql_test e_select-3.2.3 {
+  SELECT k FROM x1 NATURAL JOIN x2 WHERE x2.k
+} {3}
+do_execsql_test e_select-3.2.4 {
+  SELECT k FROM x1 NATURAL JOIN x2 WHERE x2.k-3
+} {}
+
+#-------------------------------------------------------------------------
+# Tests below this point are focused on verifying the testable statements
+# related to caculating the result rows of a simple SELECT statement.
+#
+
+drop_all_tables
+do_execsql_test e_select-4.0 {
+  CREATE TABLE z1(a, b, c);
+  CREATE TABLE z2(d, e);
+  CREATE TABLE z3(a, b);
+
+  INSERT INTO z1 VALUES(51.65, -59.58, 'belfries');
+  INSERT INTO z1 VALUES(-5, NULL, 75);
+  INSERT INTO z1 VALUES(-2.2, -23.18, 'suiters');
+  INSERT INTO z1 VALUES(NULL, 67, 'quartets');
+  INSERT INTO z1 VALUES(-1.04, -32.3, 'aspen');
+  INSERT INTO z1 VALUES(63, 'born', -26);
+
+  INSERT INTO z2 VALUES(NULL, 21);
+  INSERT INTO z2 VALUES(36, 6);
+
+  INSERT INTO z3 VALUES('subsistence', 'gauze');
+  INSERT INTO z3 VALUES(49.17, -67);
+} {}
+
+# EVIDENCE-OF: R-36327-17224 If a result expression is the special
+# expression "*" then all columns in the input data are substituted for
+# that one expression.
+#
+# EVIDENCE-OF: R-43693-30522 If the expression is the alias of a table
+# or subquery in the FROM clause followed by ".*" then all columns from
+# the named table or subquery are substituted for the single expression.
+#
+do_select_tests e_select-4.1 {
+  1  "SELECT * FROM z1 LIMIT 1"             {51.65 -59.58 belfries}
+  2  "SELECT * FROM z1,z2 LIMIT 1"          {51.65 -59.58 belfries {} 21}
+  3  "SELECT z1.* FROM z1,z2 LIMIT 1"       {51.65 -59.58 belfries}
+  4  "SELECT z2.* FROM z1,z2 LIMIT 1"       {{} 21}
+  5  "SELECT z2.*, z1.* FROM z1,z2 LIMIT 1" {{} 21 51.65 -59.58 belfries}
+
+  6  "SELECT count(*), * FROM z1"           {6 51.65 -59.58 belfries}
+  7  "SELECT max(a), * FROM z1"             {63 63 born -26}
+  8  "SELECT *, min(a) FROM z1"             {-5 {} 75 -5}
+
+  9  "SELECT *,* FROM z1,z2 LIMIT 1" {        
+     51.65 -59.58 belfries {} 21 51.65 -59.58 belfries {} 21
+  }
+  10 "SELECT z1.*,z1.* FROM z2,z1 LIMIT 1" {        
+     51.65 -59.58 belfries 51.65 -59.58 belfries
+  }
+}
+
+# EVIDENCE-OF: R-38023-18396 It is an error to use a "*" or "alias.*"
+# expression in any context other than a result expression list.
+#
+# EVIDENCE-OF: R-44324-41166 It is also an error to use a "*" or
+# "alias.*" expression in a simple SELECT query that does not have a
+# FROM clause.
+#
+foreach {tn select err} {
+  1.1  "SELECT a, b, c FROM z1 WHERE *"    {near "*": syntax error}
+  1.2  "SELECT a, b, c FROM z1 GROUP BY *" {near "*": syntax error}
+  1.3  "SELECT 1 + * FROM z1"              {near "*": syntax error}
+  1.4  "SELECT * + 1 FROM z1"              {near "+": syntax error}
+
+  2.1 "SELECT *" {no tables specified}
+  2.2 "SELECT * WHERE 1" {no tables specified}
+  2.3 "SELECT * WHERE 0" {no tables specified}
+  2.4 "SELECT count(*), *" {no tables specified}
+} {
+  do_catchsql_test e_select-4.2.$tn $select [list 1 $err]
+}
+
+# EVIDENCE-OF: R-08669-22397 The number of columns in the rows returned
+# by a simple SELECT statement is equal to the number of expressions in
+# the result expression list after substitution of * and alias.*
+# expressions.
+#
+foreach {tn select nCol} {
+  1   "SELECT * FROM z1"   3
+  2   "SELECT * FROM z1 NATURAL JOIN z3"            3
+  3   "SELECT z1.* FROM z1 NATURAL JOIN z3"         3
+  4   "SELECT z3.* FROM z1 NATURAL JOIN z3"         2
+  5   "SELECT z1.*, z3.* FROM z1 NATURAL JOIN z3"   5
+  6   "SELECT 1, 2, z1.* FROM z1"                   5
+  7   "SELECT a, *, b, c FROM z1"                   6
+} {
+  set ::stmt [sqlite3_prepare_v2 db $select -1 DUMMY]
+  do_test e_select-4.3.$tn { sqlite3_column_count $::stmt } $nCol
+  sqlite3_finalize $::stmt
+}
+
+
+
+# In lang_select.html, a non-aggregate query is defined as any simple SELECT
+# that has no GROUP BY clause and no aggregate expressions in the result
+# expression list. Other queries are aggregate queries. Test cases
+# e_select-4.4.* through e_select-4.12.*, inclusive, which test the part of
+# simple SELECT that is different for aggregate and non-aggregate queries
+# verify (in a way) that these definitions are consistent:
+#
+# EVIDENCE-OF: R-20637-43463 A simple SELECT statement is an aggregate
+# query if it contains either a GROUP BY clause or one or more aggregate
+# functions in the result-set.
+#
+# EVIDENCE-OF: R-23155-55597 Otherwise, if a simple SELECT contains no
+# aggregate functions or a GROUP BY clause, it is a non-aggregate query.
+#
+
+# EVIDENCE-OF: R-44050-47362 If the SELECT statement is a non-aggregate
+# query, then each expression in the result expression list is evaluated
+# for each row in the dataset filtered by the WHERE clause.
+#
+do_select_tests e_select-4.4 {
+  1 "SELECT a, b FROM z1"
+    {51.65 -59.58 -5 {} -2.2 -23.18 {} 67 -1.04 -32.3 63 born}
+
+  2 "SELECT a IS NULL, b+1, * FROM z1" {
+        0 -58.58   51.65 -59.58 belfries
+        0 {}       -5 {} 75            
+        0 -22.18   -2.2 -23.18 suiters
+        1 68       {} 67 quartets    
+        0 -31.3    -1.04 -32.3 aspen
+        0 1        63 born -26
+  }
+
+  3 "SELECT 32*32, d||e FROM z2" {1024 {} 1024 366}
+}
+
+
+# Test cases e_select-4.5.* and e_select-4.6.* together show that:
+#
+# EVIDENCE-OF: R-51988-01124 The single row of result-set data created
+# by evaluating the aggregate and non-aggregate expressions in the
+# result-set forms the result of an aggregate query without a GROUP BY
+# clause.
+#
+
+# EVIDENCE-OF: R-57629-25253 If the SELECT statement is an aggregate
+# query without a GROUP BY clause, then each aggregate expression in the
+# result-set is evaluated once across the entire dataset.
+#
+do_select_tests e_select-4.5 {
+  1 "SELECT count(a), max(a), count(b), max(b) FROM z1"      {5 63 5 born}
+  2 "SELECT count(*), max(1)"                                {1 1}
+
+  3 "SELECT sum(b+1) FROM z1 NATURAL LEFT JOIN z3"           {-43.06}
+  4 "SELECT sum(b+2) FROM z1 NATURAL LEFT JOIN z3"           {-38.06}
+  5 "SELECT sum(b IS NOT NULL) FROM z1 NATURAL LEFT JOIN z3" {5}
+}
+
+# EVIDENCE-OF: R-26684-40576 Each non-aggregate expression in the
+# result-set is evaluated once for an arbitrarily selected row of the
+# dataset.
+#
+# EVIDENCE-OF: R-27994-60376 The same arbitrarily selected row is used
+# for each non-aggregate expression.
+#
+#   Note: The results of many of the queries in this block of tests are
+#   technically undefined, as the documentation does not specify which row
+#   SQLite will arbitrarily select to use for the evaluation of the
+#   non-aggregate expressions.
+#
+drop_all_tables
+do_execsql_test e_select-4.6.0 {
+  CREATE TABLE a1(one PRIMARY KEY, two);
+  INSERT INTO a1 VALUES(1, 1);
+  INSERT INTO a1 VALUES(2, 3);
+  INSERT INTO a1 VALUES(3, 6);
+  INSERT INTO a1 VALUES(4, 10);
+
+  CREATE TABLE a2(one PRIMARY KEY, three);
+  INSERT INTO a2 VALUES(1, 1);
+  INSERT INTO a2 VALUES(3, 2);
+  INSERT INTO a2 VALUES(6, 3);
+  INSERT INTO a2 VALUES(10, 4);
+} {}
+do_select_tests e_select-4.6 {
+  1 "SELECT one, two, count(*) FROM a1"                        {1 1 4}
+  2 "SELECT one, two, count(*) FROM a1 WHERE one<3"            {1 1 2}
+  3 "SELECT one, two, count(*) FROM a1 WHERE one>3"            {4 10 1} 
+  4 "SELECT *, count(*) FROM a1 JOIN a2"                       {1 1 1 1 16}
+  5 "SELECT *, sum(three) FROM a1 NATURAL JOIN a2"             {1 1 1 3}
+  6 "SELECT *, sum(three) FROM a1 NATURAL JOIN a2"             {1 1 1 3}
+  7 "SELECT string_agg(three, ''), a1.* FROM a1 NATURAL JOIN a2" {12 1 1}
+}
+
+# EVIDENCE-OF: R-04486-07266 Or, if the dataset contains zero rows, then
+# each non-aggregate expression is evaluated against a row consisting
+# entirely of NULL values.
+#
+do_select_tests e_select-4.7 {
+  1  "SELECT one, two, count(*) FROM a1 WHERE 0"           {{} {} 0}
+  2  "SELECT sum(two), * FROM a1, a2 WHERE three>5"        {{} {} {} {} {}}
+  3  "SELECT max(one) IS NULL, one IS NULL, two IS NULL FROM a1 WHERE two=7" {
+    1 1 1
+  }
+} 
+
+# EVIDENCE-OF: R-64138-28774 An aggregate query without a GROUP BY
+# clause always returns exactly one row of data, even if there are zero
+# rows of input data.
+#
+foreach {tn select} {
+  8.1  "SELECT count(*) FROM a1"
+  8.2  "SELECT count(*) FROM a1 WHERE 0"
+  8.3  "SELECT count(*) FROM a1 WHERE 1"
+  8.4  "SELECT max(a1.one)+min(two), a1.one, two, * FROM a1, a2 WHERE 1"
+  8.5  "SELECT max(a1.one)+min(two), a1.one, two, * FROM a1, a2 WHERE 0"
+} {
+  # Set $nRow to the number of rows returned by $select:
+  set ::stmt [sqlite3_prepare_v2 db $select -1 DUMMY]
+  set nRow 0
+  while {"SQLITE_ROW" == [sqlite3_step $::stmt]} { incr nRow }
+  set rc [sqlite3_finalize $::stmt]
+
+  # Test that $nRow==1 and that statement execution was successful 
+  # (rc==SQLITE_OK).
+  do_test e_select-4.$tn [list list $rc $nRow] {SQLITE_OK 1}
+}
+
+drop_all_tables
+do_execsql_test e_select-4.9.0 {
+  CREATE TABLE b1(one PRIMARY KEY, two);
+  INSERT INTO b1 VALUES(1, 'o');
+  INSERT INTO b1 VALUES(4, 'f');
+  INSERT INTO b1 VALUES(3, 't');
+  INSERT INTO b1 VALUES(2, 't');
+  INSERT INTO b1 VALUES(5, 'f');
+  INSERT INTO b1 VALUES(7, 's');
+  INSERT INTO b1 VALUES(6, 's');
+
+  CREATE TABLE b2(x, y);
+  INSERT INTO b2 VALUES(NULL, 0);
+  INSERT INTO b2 VALUES(NULL, 1);
+  INSERT INTO b2 VALUES('xyz', 2);
+  INSERT INTO b2 VALUES('abc', 3);
+  INSERT INTO b2 VALUES('xyz', 4);
+
+  CREATE TABLE b3(a COLLATE nocase, b COLLATE binary);
+  INSERT INTO b3 VALUES('abc', 'abc');
+  INSERT INTO b3 VALUES('aBC', 'aBC');
+  INSERT INTO b3 VALUES('Def', 'Def');
+  INSERT INTO b3 VALUES('dEF', 'dEF');
+} {}
+
+# EVIDENCE-OF: R-40855-36147 If the SELECT statement is an aggregate
+# query with a GROUP BY clause, then each of the expressions specified
+# as part of the GROUP BY clause is evaluated for each row of the
+# dataset according to the processing rules stated below for ORDER BY
+# expressions. Each row is then assigned to a "group" based on the
+# results; rows for which the results of evaluating the GROUP BY
+# expressions are the same get assigned to the same group.
+#
+#   These tests also show that the following is not untrue:
+#
+# EVIDENCE-OF: R-25883-55063 The expressions in the GROUP BY clause do
+# not have to be expressions that appear in the result.
+#
+do_select_tests e_select-4.9 {
+  1  "SELECT group_concat(one), two FROM b1 GROUP BY two" {
+    /#,# f   1 o   #,#   s #,# t/
+  }
+  2  "SELECT group_concat(one), sum(one) FROM b1 GROUP BY (one>4)" {
+    1,2,3,4 10    5,6,7 18
+  }
+  3  "SELECT group_concat(one) FROM b1 GROUP BY (two>'o'), one%2" {
+    4  1,5    2,6   3,7
+  }
+  4  "SELECT group_concat(one) FROM b1 GROUP BY (one==2 OR two=='o')" {
+    4,3,5,7,6    1,2
+  }
+}
+
+# EVIDENCE-OF: R-14926-50129 For the purposes of grouping rows, NULL
+# values are considered equal.
+#
+do_select_tests e_select-4.10 {
+  1  "SELECT group_concat(y) FROM b2 GROUP BY x" {/#,#   3   #,#/}
+  2  "SELECT count(*) FROM b2 GROUP BY CASE WHEN y<4 THEN NULL ELSE 0 END" {4 1}
+} 
+
+# EVIDENCE-OF: R-10470-30318 The usual rules for selecting a collation
+# sequence with which to compare text values apply when evaluating
+# expressions in a GROUP BY clause.
+#
+do_select_tests e_select-4.11 {
+  1  "SELECT count(*) FROM b3 GROUP BY b"      {1 1 1 1}
+  2  "SELECT count(*) FROM b3 GROUP BY a"      {2 2}
+  3  "SELECT count(*) FROM b3 GROUP BY +b"     {1 1 1 1}
+  4  "SELECT count(*) FROM b3 GROUP BY +a"     {2 2}
+  5  "SELECT count(*) FROM b3 GROUP BY b||''"  {1 1 1 1}
+  6  "SELECT count(*) FROM b3 GROUP BY a||''"  {1 1 1 1}
+}
+
+# EVIDENCE-OF: R-63573-50730 The expressions in a GROUP BY clause may
+# not be aggregate expressions.
+#
+foreach {tn select} {
+  12.1  "SELECT * FROM b3 GROUP BY count(*)"
+  12.2  "SELECT max(a) FROM b3 GROUP BY max(b)"
+  12.3  "SELECT group_concat(a) FROM b3 GROUP BY a, max(b)"
+} {
+  set res {1 {aggregate functions are not allowed in the GROUP BY clause}}
+  do_catchsql_test e_select-4.$tn $select $res
+}
+
+# EVIDENCE-OF: R-31537-00101 If a HAVING clause is specified, it is
+# evaluated once for each group of rows as a boolean expression. If the
+# result of evaluating the HAVING clause is false, the group is
+# discarded.
+#
+#   This requirement is tested by all e_select-4.13.* tests.
+#
+# EVIDENCE-OF: R-04132-09474 If the HAVING clause is an aggregate
+# expression, it is evaluated across all rows in the group.
+#
+#   Tested by e_select-4.13.1.*
+#
+# EVIDENCE-OF: R-28262-47447 If a HAVING clause is a non-aggregate
+# expression, it is evaluated with respect to an arbitrarily selected
+# row from the group.
+#
+#   Tested by e_select-4.13.2.*
+#
+#   Tests in this block also show that this is not untrue:
+#
+# EVIDENCE-OF: R-55403-13450 The HAVING expression may refer to values,
+# even aggregate functions, that are not in the result.
+#
+do_execsql_test e_select-4.13.0 {
+  CREATE TABLE c1(up, down);
+  INSERT INTO c1 VALUES('x', 1);
+  INSERT INTO c1 VALUES('x', 2);
+  INSERT INTO c1 VALUES('x', 4);
+  INSERT INTO c1 VALUES('x', 8);
+  INSERT INTO c1 VALUES('y', 16);
+  INSERT INTO c1 VALUES('y', 32);
+
+  CREATE TABLE c2(i, j);
+  INSERT INTO c2 VALUES(1, 0);
+  INSERT INTO c2 VALUES(2, 1);
+  INSERT INTO c2 VALUES(3, 3);
+  INSERT INTO c2 VALUES(4, 6);
+  INSERT INTO c2 VALUES(5, 10);
+  INSERT INTO c2 VALUES(6, 15);
+  INSERT INTO c2 VALUES(7, 21);
+  INSERT INTO c2 VALUES(8, 28);
+  INSERT INTO c2 VALUES(9, 36);
+
+  CREATE TABLE c3(i PRIMARY KEY, k TEXT);
+  INSERT INTO c3 VALUES(1,  'hydrogen');
+  INSERT INTO c3 VALUES(2,  'helium');
+  INSERT INTO c3 VALUES(3,  'lithium');
+  INSERT INTO c3 VALUES(4,  'beryllium');
+  INSERT INTO c3 VALUES(5,  'boron');
+  INSERT INTO c3 VALUES(94, 'plutonium');
+} {}
+
+do_select_tests e_select-4.13 {
+  1.1  "SELECT up FROM c1 GROUP BY up HAVING count(*)>3" {x}
+  1.2  "SELECT up FROM c1 GROUP BY up HAVING sum(down)>16" {y}
+  1.3  "SELECT up FROM c1 GROUP BY up HAVING sum(down)<16" {x}
+  1.4  "SELECT up||down FROM c1 GROUP BY (down<5) HAVING max(down)<10" {x4}
+
+  2.1  "SELECT up FROM c1 GROUP BY up HAVING down>10" {y}
+  2.2  "SELECT up FROM c1 GROUP BY up HAVING up='y'"  {y}
+
+  2.3  "SELECT i, j FROM c2 GROUP BY i>4 HAVING j>6"  {5 10}
+}
+
+# EVIDENCE-OF: R-23927-54081 Each expression in the result-set is then
+# evaluated once for each group of rows.
+#
+# EVIDENCE-OF: R-53735-47017 If the expression is an aggregate
+# expression, it is evaluated across all rows in the group.
+#
+do_select_tests e_select-4.15 {
+  1  "SELECT sum(down) FROM c1 GROUP BY up" {15 48}
+  2  "SELECT sum(j), max(j) FROM c2 GROUP BY (i%3)"     {54 36 27 21 39 28}
+  3  "SELECT sum(j), max(j) FROM c2 GROUP BY (j%2)"     {80 36 40 21}
+  4  "SELECT 1+sum(j), max(j)+1 FROM c2 GROUP BY (j%2)" {81 37 41 22}
+  5  "SELECT count(*), round(avg(i),2) FROM c1, c2 ON (i=down) GROUP BY j%2"
+        {3 4.33 1 2.0}
+} 
+
+# EVIDENCE-OF: R-62913-19830 Otherwise, it is evaluated against a single
+# arbitrarily chosen row from within the group.
+#
+# EVIDENCE-OF: R-53924-08809 If there is more than one non-aggregate
+# expression in the result-set, then all such expressions are evaluated
+# for the same row.
+#
+do_select_tests e_select-4.15 {
+  1  "SELECT i, j FROM c2 GROUP BY i%2"             {2 1 1 0}
+  2  "SELECT i, j FROM c2 GROUP BY i%2 HAVING j<30" {2 1 1 0}
+  3  "SELECT i, j FROM c2 GROUP BY i%2 HAVING j>30" {}
+  4  "SELECT i, j FROM c2 GROUP BY i%2 HAVING j>30" {}
+  5  "SELECT count(*), i, k FROM c2 NATURAL JOIN c3 GROUP BY substr(k, 1, 1)"
+        {2 4 beryllium 2 1 hydrogen 1 3 lithium}
+} 
+
+# EVIDENCE-OF: R-19334-12811 Each group of input dataset rows
+# contributes a single row to the set of result rows.
+#
+# EVIDENCE-OF: R-02223-49279 Subject to filtering associated with the
+# DISTINCT keyword, the number of rows returned by an aggregate query
+# with a GROUP BY clause is the same as the number of groups of rows
+# produced by applying the GROUP BY and HAVING clauses to the filtered
+# input dataset.
+#
+do_select_tests e_select.4.16 -count {
+  1  "SELECT i, j FROM c2 GROUP BY i%2"          2
+  2  "SELECT i, j FROM c2 GROUP BY i"            9
+  3  "SELECT i, j FROM c2 GROUP BY i HAVING i<5" 4
+} 
+
+#-------------------------------------------------------------------------
+# The following tests attempt to verify statements made regarding the ALL
+# and DISTINCT keywords.
+#
+drop_all_tables
+do_execsql_test e_select-5.1.0 {
+  CREATE TABLE h1(a, b);
+  INSERT INTO h1 VALUES(1, 'one');
+  INSERT INTO h1 VALUES(1, 'I');
+  INSERT INTO h1 VALUES(1, 'i');
+  INSERT INTO h1 VALUES(4, 'four');
+  INSERT INTO h1 VALUES(4, 'IV');
+  INSERT INTO h1 VALUES(4, 'iv');
+
+  CREATE TABLE h2(x COLLATE nocase);
+  INSERT INTO h2 VALUES('One');
+  INSERT INTO h2 VALUES('Two');
+  INSERT INTO h2 VALUES('Three');
+  INSERT INTO h2 VALUES('Four');
+  INSERT INTO h2 VALUES('one');
+  INSERT INTO h2 VALUES('two');
+  INSERT INTO h2 VALUES('three');
+  INSERT INTO h2 VALUES('four');
+
+  CREATE TABLE h3(c, d);
+  INSERT INTO h3 VALUES(1, NULL);
+  INSERT INTO h3 VALUES(2, NULL);
+  INSERT INTO h3 VALUES(3, NULL);
+  INSERT INTO h3 VALUES(4, '2');
+  INSERT INTO h3 VALUES(5, NULL);
+  INSERT INTO h3 VALUES(6, '2,3');
+  INSERT INTO h3 VALUES(7, NULL);
+  INSERT INTO h3 VALUES(8, '2,4');
+  INSERT INTO h3 VALUES(9, '3');
+} {}
+
+# EVIDENCE-OF: R-60770-10612 One of the ALL or DISTINCT keywords may
+# follow the SELECT keyword in a simple SELECT statement.
+#
+do_select_tests e_select-5.1 {
+  1   "SELECT ALL a FROM h1"      {1 1 1 4 4 4}
+  2   "SELECT DISTINCT a FROM h1" {1 4}
+}
+
+# EVIDENCE-OF: R-08861-34280 If the simple SELECT is a SELECT ALL, then
+# the entire set of result rows are returned by the SELECT.
+#
+# EVIDENCE-OF: R-01256-01950 If neither ALL or DISTINCT are present,
+# then the behavior is as if ALL were specified.
+#
+# EVIDENCE-OF: R-14442-41305 If the simple SELECT is a SELECT DISTINCT,
+# then duplicate rows are removed from the set of result rows before it
+# is returned.
+#
+#   The three testable statements above are tested by e_select-5.2.*,
+#   5.3.* and 5.4.* respectively.
+#
+do_select_tests e_select-5 {
+  3.1 "SELECT ALL x FROM h2" {One Two Three Four one two three four}
+  3.2 "SELECT ALL x FROM h1, h2 ON (x=b)" {One one Four four}
+
+  3.1 "SELECT x FROM h2" {One Two Three Four one two three four}
+  3.2 "SELECT x FROM h1, h2 ON (x=b)" {One one Four four}
+
+  4.1 "SELECT DISTINCT x FROM h2" {One Two Three Four}
+  4.2 "SELECT DISTINCT x FROM h1, h2 ON (x=b)" {One Four}
+} 
+
+# EVIDENCE-OF: R-02054-15343 For the purposes of detecting duplicate
+# rows, two NULL values are considered to be equal.
+#
+do_select_tests e_select-5.5 {
+  1  "SELECT DISTINCT d FROM h3" {{} 2 2,3 2,4 3}
+}
+
+# EVIDENCE-OF: R-47709-27231 The usual rules apply for selecting a
+# collation sequence to compare text values.
+#
+do_select_tests e_select-5.6 {
+  1  "SELECT DISTINCT b FROM h1"                  {one I i four IV iv}
+  2  "SELECT DISTINCT b COLLATE nocase FROM h1"   {one I four IV}
+  3  "SELECT DISTINCT x FROM h2"                  {One Two Three Four}
+  4  "SELECT DISTINCT x COLLATE binary FROM h2"   {
+    One Two Three Four one two three four
+  }
+}
+
+#-------------------------------------------------------------------------
+# The following tests - e_select-7.* - test that statements made to do
+# with compound SELECT statements are correct.
+#
+
+# EVIDENCE-OF: R-39368-64333 In a compound SELECT, all the constituent
+# SELECTs must return the same number of result columns.
+#
+#   All the other tests in this section use compound SELECTs created
+#   using component SELECTs that do return the same number of columns.
+#   So the tests here just show that it is an error to attempt otherwise.
+#
+drop_all_tables
+do_execsql_test e_select-7.1.0 {
+  CREATE TABLE j1(a, b, c);
+  CREATE TABLE j2(e, f);
+  CREATE TABLE j3(g);
+} {}
+do_select_tests e_select-7.1 -error {
+  SELECTs to the left and right of %s do not have the same number of result columns
+} {
+  1   "SELECT a, b FROM j1    UNION ALL SELECT g FROM j3"    {{UNION ALL}}
+  2   "SELECT *    FROM j1    UNION ALL SELECT * FROM j3"    {{UNION ALL}}
+  3   "SELECT a, b FROM j1    UNION ALL SELECT g FROM j3"    {{UNION ALL}}
+  4   "SELECT a, b FROM j1    UNION ALL SELECT * FROM j3,j2" {{UNION ALL}}
+  5   "SELECT *    FROM j3,j2 UNION ALL SELECT a, b FROM j1" {{UNION ALL}}
+
+  6   "SELECT a, b FROM j1    UNION SELECT g FROM j3"        {UNION}
+  7   "SELECT *    FROM j1    UNION SELECT * FROM j3"        {UNION}
+  8   "SELECT a, b FROM j1    UNION SELECT g FROM j3"        {UNION}
+  9   "SELECT a, b FROM j1    UNION SELECT * FROM j3,j2"     {UNION}
+  10  "SELECT *    FROM j3,j2 UNION SELECT a, b FROM j1"     {UNION}
+
+  11  "SELECT a, b FROM j1    INTERSECT SELECT g FROM j3"    {INTERSECT}
+  12  "SELECT *    FROM j1    INTERSECT SELECT * FROM j3"    {INTERSECT}
+  13  "SELECT a, b FROM j1    INTERSECT SELECT g FROM j3"    {INTERSECT}
+  14  "SELECT a, b FROM j1    INTERSECT SELECT * FROM j3,j2" {INTERSECT}
+  15  "SELECT *    FROM j3,j2 INTERSECT SELECT a, b FROM j1" {INTERSECT}
+
+  16  "SELECT a, b FROM j1    EXCEPT SELECT g FROM j3"       {EXCEPT}
+  17  "SELECT *    FROM j1    EXCEPT SELECT * FROM j3"       {EXCEPT}
+  18  "SELECT a, b FROM j1    EXCEPT SELECT g FROM j3"       {EXCEPT}
+  19  "SELECT a, b FROM j1    EXCEPT SELECT * FROM j3,j2"    {EXCEPT}
+  20  "SELECT *    FROM j3,j2 EXCEPT SELECT a, b FROM j1"    {EXCEPT}
+} 
+
+# EVIDENCE-OF: R-01450-11152 As the components of a compound SELECT must
+# be simple SELECT statements, they may not contain ORDER BY or LIMIT
+# clauses.
+# 
+foreach {tn select op1 op2} {
+  1   "SELECT * FROM j1 ORDER BY a UNION ALL SELECT * FROM j2,j3" 
+      {ORDER BY} {UNION ALL}
+  2   "SELECT count(*) FROM j1 ORDER BY 1 UNION ALL SELECT max(e) FROM j2"
+      {ORDER BY} {UNION ALL}
+  3   "SELECT count(*), * FROM j1 ORDER BY 1,2,3 UNION ALL SELECT *,* FROM j2"
+      {ORDER BY} {UNION ALL}
+  4   "SELECT * FROM j1 LIMIT 10 UNION ALL SELECT * FROM j2,j3" 
+      LIMIT {UNION ALL}
+  5   "SELECT * FROM j1 LIMIT 10 OFFSET 5 UNION ALL SELECT * FROM j2,j3" 
+      LIMIT {UNION ALL}
+  6   "SELECT a FROM j1 LIMIT (SELECT e FROM j2) UNION ALL SELECT g FROM j2,j3" 
+      LIMIT {UNION ALL}
+
+  7   "SELECT * FROM j1 ORDER BY a UNION SELECT * FROM j2,j3" 
+      {ORDER BY} {UNION}
+  8   "SELECT count(*) FROM j1 ORDER BY 1 UNION SELECT max(e) FROM j2"
+      {ORDER BY} {UNION}
+  9   "SELECT count(*), * FROM j1 ORDER BY 1,2,3 UNION SELECT *,* FROM j2"
+      {ORDER BY} {UNION}
+  10  "SELECT * FROM j1 LIMIT 10 UNION SELECT * FROM j2,j3" 
+      LIMIT {UNION}
+  11  "SELECT * FROM j1 LIMIT 10 OFFSET 5 UNION SELECT * FROM j2,j3" 
+      LIMIT {UNION}
+  12  "SELECT a FROM j1 LIMIT (SELECT e FROM j2) UNION SELECT g FROM j2,j3" 
+      LIMIT {UNION}
+
+  13  "SELECT * FROM j1 ORDER BY a EXCEPT SELECT * FROM j2,j3" 
+      {ORDER BY} {EXCEPT}
+  14  "SELECT count(*) FROM j1 ORDER BY 1 EXCEPT SELECT max(e) FROM j2"
+      {ORDER BY} {EXCEPT}
+  15  "SELECT count(*), * FROM j1 ORDER BY 1,2,3 EXCEPT SELECT *,* FROM j2"
+      {ORDER BY} {EXCEPT}
+  16  "SELECT * FROM j1 LIMIT 10 EXCEPT SELECT * FROM j2,j3" 
+      LIMIT {EXCEPT}
+  17  "SELECT * FROM j1 LIMIT 10 OFFSET 5 EXCEPT SELECT * FROM j2,j3" 
+      LIMIT {EXCEPT}
+  18  "SELECT a FROM j1 LIMIT (SELECT e FROM j2) EXCEPT SELECT g FROM j2,j3" 
+      LIMIT {EXCEPT}
+
+  19  "SELECT * FROM j1 ORDER BY a INTERSECT SELECT * FROM j2,j3" 
+      {ORDER BY} {INTERSECT}
+  20  "SELECT count(*) FROM j1 ORDER BY 1 INTERSECT SELECT max(e) FROM j2"
+      {ORDER BY} {INTERSECT}
+  21  "SELECT count(*), * FROM j1 ORDER BY 1,2,3 INTERSECT SELECT *,* FROM j2"
+      {ORDER BY} {INTERSECT}
+  22  "SELECT * FROM j1 LIMIT 10 INTERSECT SELECT * FROM j2,j3" 
+      LIMIT {INTERSECT}
+  23  "SELECT * FROM j1 LIMIT 10 OFFSET 5 INTERSECT SELECT * FROM j2,j3" 
+      LIMIT {INTERSECT}
+  24  "SELECT a FROM j1 LIMIT (SELECT e FROM j2) INTERSECT SELECT g FROM j2,j3" 
+      LIMIT {INTERSECT}
+} {
+  set err "$op1 clause should come after $op2 not before"
+  do_catchsql_test e_select-7.2.$tn $select [list 1 $err]
+}
+
+# EVIDENCE-OF: R-45440-25633 ORDER BY and LIMIT clauses may only occur
+# at the end of the entire compound SELECT, and then only if the final
+# element of the compound is not a VALUES clause.
+#
+foreach {tn select} {
+  1   "SELECT * FROM j1 UNION ALL SELECT * FROM j2,j3 ORDER BY a"
+  2   "SELECT count(*) FROM j1 UNION ALL SELECT max(e) FROM j2 ORDER BY 1"
+  3   "SELECT count(*), * FROM j1 UNION ALL SELECT *,* FROM j2 ORDER BY 1,2,3"
+  4   "SELECT * FROM j1 UNION ALL SELECT * FROM j2,j3 LIMIT 10" 
+  5   "SELECT * FROM j1 UNION ALL SELECT * FROM j2,j3 LIMIT 10 OFFSET 5" 
+  6   "SELECT a FROM j1 UNION ALL SELECT g FROM j2,j3 LIMIT (SELECT 10)" 
+
+  7   "SELECT * FROM j1 UNION SELECT * FROM j2,j3 ORDER BY a"
+  8   "SELECT count(*) FROM j1 UNION SELECT max(e) FROM j2 ORDER BY 1"
+  8b  "VALUES('8b') UNION SELECT max(e) FROM j2 ORDER BY 1"
+  9   "SELECT count(*), * FROM j1 UNION SELECT *,* FROM j2 ORDER BY 1,2,3"
+  10  "SELECT * FROM j1 UNION SELECT * FROM j2,j3 LIMIT 10" 
+  11  "SELECT * FROM j1 UNION SELECT * FROM j2,j3 LIMIT 10 OFFSET 5" 
+  12  "SELECT a FROM j1 UNION SELECT g FROM j2,j3 LIMIT (SELECT 10)" 
+
+  13  "SELECT * FROM j1 EXCEPT SELECT * FROM j2,j3 ORDER BY a"
+  14  "SELECT count(*) FROM j1 EXCEPT SELECT max(e) FROM j2 ORDER BY 1"
+  15  "SELECT count(*), * FROM j1 EXCEPT SELECT *,* FROM j2 ORDER BY 1,2,3"
+  16  "SELECT * FROM j1 EXCEPT SELECT * FROM j2,j3 LIMIT 10" 
+  17  "SELECT * FROM j1 EXCEPT SELECT * FROM j2,j3 LIMIT 10 OFFSET 5" 
+  18  "SELECT a FROM j1 EXCEPT SELECT g FROM j2,j3 LIMIT (SELECT 10)" 
+
+  19  "SELECT * FROM j1 INTERSECT SELECT * FROM j2,j3 ORDER BY a"
+  20  "SELECT count(*) FROM j1 INTERSECT SELECT max(e) FROM j2 ORDER BY 1"
+  21  "SELECT count(*), * FROM j1 INTERSECT SELECT *,* FROM j2 ORDER BY 1,2,3"
+  22  "SELECT * FROM j1 INTERSECT SELECT * FROM j2,j3 LIMIT 10" 
+  23  "SELECT * FROM j1 INTERSECT SELECT * FROM j2,j3 LIMIT 10 OFFSET 5" 
+  24  "SELECT a FROM j1 INTERSECT SELECT g FROM j2,j3 LIMIT (SELECT 10)" 
+} {
+  do_test e_select-7.3.$tn { catch {execsql $select} msg } 0
+}
+foreach {tn select} {
+  50   "SELECT * FROM j1 ORDER BY 1 UNION ALL SELECT * FROM j2,j3"
+  51   "SELECT * FROM j1 LIMIT 1 UNION ALL SELECT * FROM j2,j3"
+  52   "SELECT count(*) FROM j1 UNION ALL VALUES(11) ORDER BY 1"
+  53   "SELECT count(*) FROM j1 UNION ALL VALUES(11) LIMIT 1"
+} {
+  do_test e_select-7.3.$tn { catch {execsql $select} msg } 1
+}
+
+# EVIDENCE-OF: R-08531-36543 A compound SELECT created using UNION ALL
+# operator returns all the rows from the SELECT to the left of the UNION
+# ALL operator, and all the rows from the SELECT to the right of it.
+#
+drop_all_tables
+do_execsql_test e_select-7.4.0 {
+  CREATE TABLE q1(a TEXT, b INTEGER, c);
+  CREATE TABLE q2(d NUMBER, e BLOB);
+  CREATE TABLE q3(f REAL, g);
+
+  INSERT INTO q1 VALUES(16, -87.66, NULL);
+  INSERT INTO q1 VALUES('legible', 94, -42.47);
+  INSERT INTO q1 VALUES('beauty', 36, NULL);
+
+  INSERT INTO q2 VALUES('legible', 1);
+  INSERT INTO q2 VALUES('beauty', 2);
+  INSERT INTO q2 VALUES(-65.91, 4);
+  INSERT INTO q2 VALUES('emanating', -16.56);
+
+  INSERT INTO q3 VALUES('beauty', 2);
+  INSERT INTO q3 VALUES('beauty', 2);
+} {}
+do_select_tests e_select-7.4 {
+  1   {SELECT a FROM q1 UNION ALL SELECT d FROM q2}
+      {16 legible beauty legible beauty -65.91 emanating}
+
+  2   {SELECT * FROM q1 WHERE a=16 UNION ALL SELECT 'x', * FROM q2 WHERE oid=1}
+      {16 -87.66 {} x legible 1}
+
+  3   {SELECT count(*) FROM q1 UNION ALL SELECT min(e) FROM q2} 
+      {3 -16.56}
+
+  4   {SELECT * FROM q2 UNION ALL SELECT * FROM q3} 
+      {legible 1 beauty 2 -65.91 4 emanating -16.56 beauty 2 beauty 2}
+} 
+
+# EVIDENCE-OF: R-20560-39162 The UNION operator works the same way as
+# UNION ALL, except that duplicate rows are removed from the final
+# result set.
+#
+do_select_tests e_select-7.5 {
+  1   {SELECT a FROM q1 UNION SELECT d FROM q2}
+      {-65.91 16 beauty emanating legible}
+
+  2   {SELECT * FROM q1 WHERE a=16 UNION SELECT 'x', * FROM q2 WHERE oid=1}
+      {16 -87.66 {} x legible 1}
+
+  3   {SELECT count(*) FROM q1 UNION SELECT min(e) FROM q2} 
+      {-16.56 3}
+
+  4   {SELECT * FROM q2 UNION SELECT * FROM q3} 
+      {-65.91 4 beauty 2 emanating -16.56 legible 1}
+} 
+
+# EVIDENCE-OF: R-45764-31737 The INTERSECT operator returns the
+# intersection of the results of the left and right SELECTs.
+#
+do_select_tests e_select-7.6 {
+  1   {SELECT a FROM q1 INTERSECT SELECT d FROM q2} {beauty legible}
+  2   {SELECT * FROM q2 INTERSECT SELECT * FROM q3} {beauty 2}
+}
+
+# EVIDENCE-OF: R-25787-28949 The EXCEPT operator returns the subset of
+# rows returned by the left SELECT that are not also returned by the
+# right-hand SELECT.
+#
+do_select_tests e_select-7.7 {
+  1   {SELECT a FROM q1 EXCEPT SELECT d FROM q2} {16}
+
+  2   {SELECT * FROM q2 EXCEPT SELECT * FROM q3} 
+      {-65.91 4 emanating -16.56 legible 1}
+}
+
+# EVIDENCE-OF: R-40729-56447 Duplicate rows are removed from the results
+# of INTERSECT and EXCEPT operators before the result set is returned.
+#
+do_select_tests e_select-7.8 {
+  0   {SELECT * FROM q3} {beauty 2 beauty 2}
+
+  1   {SELECT * FROM q3 INTERSECT SELECT * FROM q3} {beauty 2}
+  2   {SELECT * FROM q3 EXCEPT SELECT a,b FROM q1}  {beauty 2}
+}
+
+# EVIDENCE-OF: R-46765-43362 For the purposes of determining duplicate
+# rows for the results of compound SELECT operators, NULL values are
+# considered equal to other NULL values and distinct from all non-NULL
+# values.
+#
+db nullvalue null
+do_select_tests e_select-7.9 {
+  1   {SELECT NULL UNION ALL SELECT NULL} {null null}
+  2   {SELECT NULL UNION     SELECT NULL} {null}
+  3   {SELECT NULL INTERSECT SELECT NULL} {null}
+  4   {SELECT NULL EXCEPT    SELECT NULL} {}
+
+  5   {SELECT NULL UNION ALL SELECT 'ab'} {null ab}
+  6   {SELECT NULL UNION     SELECT 'ab'} {null ab}
+  7   {SELECT NULL INTERSECT SELECT 'ab'} {}
+  8   {SELECT NULL EXCEPT    SELECT 'ab'} {null}
+
+  9   {SELECT NULL UNION ALL SELECT 0} {null 0}
+  10  {SELECT NULL UNION     SELECT 0} {null 0}
+  11  {SELECT NULL INTERSECT SELECT 0} {}
+  12  {SELECT NULL EXCEPT    SELECT 0} {null}
+
+  13  {SELECT c FROM q1 UNION ALL SELECT g FROM q3} {null -42.47 null 2 2}
+  14  {SELECT c FROM q1 UNION     SELECT g FROM q3} {null -42.47 2}
+  15  {SELECT c FROM q1 INTERSECT SELECT g FROM q3} {}
+  16  {SELECT c FROM q1 EXCEPT    SELECT g FROM q3} {null -42.47}
+}
+db nullvalue {} 
+
+# EVIDENCE-OF: R-51232-50224 The collation sequence used to compare two
+# text values is determined as if the columns of the left and right-hand
+# SELECT statements were the left and right-hand operands of the equals
+# (=) operator, except that greater precedence is not assigned to a
+# collation sequence specified with the postfix COLLATE operator.
+#
+drop_all_tables
+do_execsql_test e_select-7.10.0 {
+  CREATE TABLE y1(a COLLATE nocase, b COLLATE binary, c);
+  INSERT INTO y1 VALUES('Abc', 'abc', 'aBC');
+} {}
+do_select_tests e_select-7.10 {
+  1   {SELECT 'abc'                UNION SELECT 'ABC'} {ABC abc}
+  2   {SELECT 'abc' COLLATE nocase UNION SELECT 'ABC'} {ABC}
+  3   {SELECT 'abc'                UNION SELECT 'ABC' COLLATE nocase} {ABC}
+  4   {SELECT 'abc' COLLATE binary UNION SELECT 'ABC' COLLATE nocase} {ABC abc}
+  5   {SELECT 'abc' COLLATE nocase UNION SELECT 'ABC' COLLATE binary} {ABC}
+
+  6   {SELECT a FROM y1 UNION SELECT b FROM y1}                {abc}
+  7   {SELECT b FROM y1 UNION SELECT a FROM y1}                {Abc abc}
+  8   {SELECT a FROM y1 UNION SELECT c FROM y1}                {aBC}
+
+  9   {SELECT a FROM y1 UNION SELECT c COLLATE binary FROM y1} {aBC}
+}
+
+# EVIDENCE-OF: R-32706-07403 No affinity transformations are applied to
+# any values when comparing rows as part of a compound SELECT.
+#
+drop_all_tables
+do_execsql_test e_select-7.10.0 {
+  CREATE TABLE w1(a TEXT, b NUMBER);
+  CREATE TABLE w2(a, b TEXT);
+
+  INSERT INTO w1 VALUES('1', 4.1);
+  INSERT INTO w2 VALUES(1, 4.1);
+} {}
+
+do_select_tests e_select-7.11 {
+  1  { SELECT a FROM w1 UNION SELECT a FROM w2 } {1 1}
+  2  { SELECT a FROM w2 UNION SELECT a FROM w1 } {1 1}
+  3  { SELECT b FROM w1 UNION SELECT b FROM w2 } {4.1 4.1}
+  4  { SELECT b FROM w2 UNION SELECT b FROM w1 } {4.1 4.1}
+
+  5  { SELECT a FROM w1 INTERSECT SELECT a FROM w2 } {}
+  6  { SELECT a FROM w2 INTERSECT SELECT a FROM w1 } {}
+  7  { SELECT b FROM w1 INTERSECT SELECT b FROM w2 } {}
+  8  { SELECT b FROM w2 INTERSECT SELECT b FROM w1 } {}
+
+  9  { SELECT a FROM w1 EXCEPT SELECT a FROM w2 } {1}
+  10 { SELECT a FROM w2 EXCEPT SELECT a FROM w1 } {1}
+  11 { SELECT b FROM w1 EXCEPT SELECT b FROM w2 } {4.1}
+  12 { SELECT b FROM w2 EXCEPT SELECT b FROM w1 } {4.1}
+}
+
+
+# EVIDENCE-OF: R-32562-20566 When three or more simple SELECTs are
+# connected into a compound SELECT, they group from left to right. In
+# other words, if "A", "B" and "C" are all simple SELECT statements, (A
+# op B op C) is processed as ((A op B) op C).
+#
+#   e_select-7.12.1: Precedence of UNION vs. INTERSECT 
+#   e_select-7.12.2: Precedence of UNION vs. UNION ALL 
+#   e_select-7.12.3: Precedence of UNION vs. EXCEPT
+#   e_select-7.12.4: Precedence of INTERSECT vs. UNION ALL 
+#   e_select-7.12.5: Precedence of INTERSECT vs. EXCEPT
+#   e_select-7.12.6: Precedence of UNION ALL vs. EXCEPT
+#   e_select-7.12.7: Check that "a EXCEPT b EXCEPT c" is processed as 
+#                   "(a EXCEPT b) EXCEPT c".
+#
+# The INTERSECT and EXCEPT operations are mutually commutative. So
+# the e_select-7.12.5 test cases do not prove very much.
+#
+drop_all_tables
+do_execsql_test e_select-7.12.0 {
+  CREATE TABLE t1(x);
+  INSERT INTO t1 VALUES(1);
+  INSERT INTO t1 VALUES(2);
+  INSERT INTO t1 VALUES(3);
+} {}
+foreach {tn select res} {
+  1a "(1,2) INTERSECT (1)   UNION     (3)"   {1 3}
+  1b "(3)   UNION     (1,2) INTERSECT (1)"   {1}
+
+  2a "(1,2) UNION     (3)   UNION ALL (1)"   {1 2 3 1}
+  2b "(1)   UNION ALL (3)   UNION     (1,2)" {1 2 3}
+
+  3a "(1,2) UNION     (3)   EXCEPT    (1)"   {2 3}
+  3b "(1,2) EXCEPT    (3)   UNION     (1)"   {1 2}
+
+  4a "(1,2) INTERSECT (1)   UNION ALL (3)"   {1 3}
+  4b "(3)   UNION     (1,2) INTERSECT (1)"   {1}
+
+  5a "(1,2) INTERSECT (2)   EXCEPT    (2)"   {}
+  5b "(2,3) EXCEPT    (2)   INTERSECT (2)"   {}
+
+  6a "(2)   UNION ALL (2)   EXCEPT    (2)"   {}
+  6b "(2)   EXCEPT    (2)   UNION ALL (2)"   {2}
+
+  7  "(2,3) EXCEPT    (2)   EXCEPT    (3)"   {}
+} {
+  set select [string map {( {SELECT x FROM t1 WHERE x IN (}} $select]
+  do_execsql_test e_select-7.12.$tn $select [list {*}$res]
+}
+
+
+#-------------------------------------------------------------------------
+# ORDER BY clauses
+#
+
+drop_all_tables
+do_execsql_test e_select-8.1.0 {
+  CREATE TABLE d1(x, y, z);
+
+  INSERT INTO d1 VALUES(1, 2, 3);
+  INSERT INTO d1 VALUES(2, 5, -1);
+  INSERT INTO d1 VALUES(1, 2, 8);
+  INSERT INTO d1 VALUES(1, 2, 7);
+  INSERT INTO d1 VALUES(2, 4, 93);
+  INSERT INTO d1 VALUES(1, 2, -20);
+  INSERT INTO d1 VALUES(1, 4, 93);
+  INSERT INTO d1 VALUES(1, 5, -1);
+
+  CREATE TABLE d2(a, b);
+  INSERT INTO d2 VALUES('gently', 'failings');
+  INSERT INTO d2 VALUES('commercials', 'bathrobe');
+  INSERT INTO d2 VALUES('iterate', 'sexton');
+  INSERT INTO d2 VALUES('babied', 'charitableness');
+  INSERT INTO d2 VALUES('solemnness', 'annexed');
+  INSERT INTO d2 VALUES('rejoicing', 'liabilities');
+  INSERT INTO d2 VALUES('pragmatist', 'guarded');
+  INSERT INTO d2 VALUES('barked', 'interrupted');
+  INSERT INTO d2 VALUES('reemphasizes', 'reply');
+  INSERT INTO d2 VALUES('lad', 'relenting');
+} {}
+
+# EVIDENCE-OF: R-44988-41064 Rows are first sorted based on the results
+# of evaluating the left-most expression in the ORDER BY list, then ties
+# are broken by evaluating the second left-most expression and so on.
+#
+do_select_tests e_select-8.1 {
+  1  "SELECT * FROM d1 ORDER BY x, y, z" {
+     1 2 -20    1 2 3    1 2 7    1 2 8    
+     1 4  93    1 5 -1   2 4 93   2 5 -1
+  }
+}
+
+# EVIDENCE-OF: R-06617-54588 Each ORDER BY expression may be optionally
+# followed by one of the keywords ASC (smaller values are returned
+# first) or DESC (larger values are returned first).
+#
+#   Test cases e_select-8.2.* test the above.
+#
+# EVIDENCE-OF: R-18705-33393 If neither ASC or DESC are specified, rows
+# are sorted in ascending (smaller values first) order by default.
+#
+#   Test cases e_select-8.3.* test the above. All 8.3 test cases are
+#   copies of 8.2 test cases with the explicit "ASC" removed.
+#
+do_select_tests e_select-8 {
+  2.1  "SELECT * FROM d1 ORDER BY x ASC, y ASC, z ASC" {
+     1 2 -20    1 2 3    1 2 7    1 2 8    
+     1 4  93    1 5 -1   2 4 93   2 5 -1
+  }
+  2.2  "SELECT * FROM d1 ORDER BY x DESC, y DESC, z DESC" {
+     2 5 -1     2 4 93   1 5 -1   1 4  93    
+     1 2 8      1 2 7    1 2 3    1 2 -20    
+  }
+  2.3 "SELECT * FROM d1 ORDER BY x DESC, y ASC, z DESC" {
+     2 4 93   2 5 -1     1 2 8      1 2 7    
+     1 2 3    1 2 -20    1 4  93    1 5 -1   
+  }
+  2.4  "SELECT * FROM d1 ORDER BY x DESC, y ASC, z ASC" {
+     2 4 93   2 5 -1     1 2 -20    1 2 3    
+     1 2 7    1 2 8      1 4  93    1 5 -1   
+  }
+
+  3.1  "SELECT * FROM d1 ORDER BY x, y, z" {
+     1 2 -20    1 2 3    1 2 7    1 2 8    
+     1 4  93    1 5 -1   2 4 93   2 5 -1
+  }
+  3.3  "SELECT * FROM d1 ORDER BY x DESC, y, z DESC" {
+     2 4 93   2 5 -1     1 2 8      1 2 7    
+     1 2 3    1 2 -20    1 4  93    1 5 -1   
+  }
+  3.4 "SELECT * FROM d1 ORDER BY x DESC, y, z" {
+     2 4 93   2 5 -1     1 2 -20    1 2 3    
+     1 2 7    1 2 8      1 4  93    1 5 -1   
+  }
+}
+
+# EVIDENCE-OF: R-29779-04281 If the ORDER BY expression is a constant
+# integer K then the expression is considered an alias for the K-th
+# column of the result set (columns are numbered from left to right
+# starting with 1).
+#
+do_select_tests e_select-8.4 {
+  1  "SELECT * FROM d1 ORDER BY 1 ASC, 2 ASC, 3 ASC" {
+     1 2 -20    1 2 3    1 2 7    1 2 8    
+     1 4  93    1 5 -1   2 4 93   2 5 -1
+  }
+  2  "SELECT * FROM d1 ORDER BY 1 DESC, 2 DESC, 3 DESC" {
+     2 5 -1     2 4 93   1 5 -1   1 4  93    
+     1 2 8      1 2 7    1 2 3    1 2 -20    
+  }
+  3 "SELECT * FROM d1 ORDER BY 1 DESC, 2 ASC, 3 DESC" {
+     2 4 93   2 5 -1     1 2 8      1 2 7    
+     1 2 3    1 2 -20    1 4  93    1 5 -1   
+  }
+  4  "SELECT * FROM d1 ORDER BY 1 DESC, 2 ASC, 3 ASC" {
+     2 4 93   2 5 -1     1 2 -20    1 2 3    
+     1 2 7    1 2 8      1 4  93    1 5 -1   
+  }
+  5  "SELECT * FROM d1 ORDER BY 1, 2, 3" {
+     1 2 -20    1 2 3    1 2 7    1 2 8    
+     1 4  93    1 5 -1   2 4 93   2 5 -1
+  }
+  6  "SELECT * FROM d1 ORDER BY 1 DESC, 2, 3 DESC" {
+     2 4 93   2 5 -1     1 2 8      1 2 7    
+     1 2 3    1 2 -20    1 4  93    1 5 -1   
+  }
+  7  "SELECT * FROM d1 ORDER BY 1 DESC, 2, 3" {
+     2 4 93   2 5 -1     1 2 -20    1 2 3    
+     1 2 7    1 2 8      1 4  93    1 5 -1   
+  }
+  8  "SELECT z, x FROM d1 ORDER BY 2" {
+     /# 1    # 1    # 1   # 1 
+      # 1    # 1    # 2   # 2/
+  }
+  9  "SELECT z, x FROM d1 ORDER BY 1" {
+     /-20 1  -1 #   -1 #   3 1
+     7 1     8 1   93 #   93 #/   
+  }
+}
+
+# EVIDENCE-OF: R-63286-51977 If the ORDER BY expression is an identifier
+# that corresponds to the alias of one of the output columns, then the
+# expression is considered an alias for that column.
+#
+do_select_tests e_select-8.5 {
+  1   "SELECT z+1 AS abc FROM d1 ORDER BY abc" {
+    -19 0 0 4 8 9 94 94
+  }
+  2   "SELECT z+1 AS abc FROM d1 ORDER BY abc DESC" {
+    94 94 9 8 4 0 0 -19
+  }
+  3  "SELECT z AS x, x AS z FROM d1 ORDER BY z" {
+    /# 1    # 1    # 1    # 1    # 1    # 1    # 2    # 2/
+  }
+  4  "SELECT z AS x, x AS z FROM d1 ORDER BY x" {
+    /-20 1    -1 #    -1 #    3 1    7 1    8 1    93 #    93 #/
+  }
+}
+
+# EVIDENCE-OF: R-65068-27207 Otherwise, if the ORDER BY expression is
+# any other expression, it is evaluated and the returned value used to
+# order the output rows.
+#
+# EVIDENCE-OF: R-03421-57988 If the SELECT statement is a simple SELECT,
+# then an ORDER BY may contain any arbitrary expressions.
+#
+do_select_tests e_select-8.6 {
+  1   "SELECT * FROM d1 ORDER BY x+y+z" {
+    1 2 -20    1 5 -1    1 2 3    2 5 -1 
+    1 2 7      1 2 8     1 4 93   2 4 93
+  }
+  2   "SELECT * FROM d1 ORDER BY x*z" {
+    1 2 -20    2 5 -1    1 5 -1    1 2 3 
+    1 2 7      1 2 8     1 4 93    2 4 93
+  }
+  3   "SELECT * FROM d1 ORDER BY y*z" {
+    1 2 -20    2 5 -1    1 5 -1    1 2 3 
+    1 2 7      1 2 8     2 4 93    1 4 93
+  }
+}
+
+# EVIDENCE-OF: R-28853-08147 However, if the SELECT is a compound
+# SELECT, then ORDER BY expressions that are not aliases to output
+# columns must be exactly the same as an expression used as an output
+# column.
+#
+do_select_tests e_select-8.7.1 -error {
+  %s ORDER BY term does not match any column in the result set
+} {
+  1   "SELECT x FROM d1 UNION ALL SELECT a FROM d2 ORDER BY x*z"        1st
+  2   "SELECT x,z FROM d1 UNION ALL SELECT a,b FROM d2 ORDER BY x, x/z" 2nd
+} 
+
+do_select_tests e_select-8.7.2 {
+  1   "SELECT x*z FROM d1 UNION ALL SELECT a FROM d2 ORDER BY x*z" {
+    -20 -2 -1 3 7 8 93 186 babied barked commercials gently 
+    iterate lad pragmatist reemphasizes rejoicing solemnness
+  }
+  2   "SELECT x, x/z FROM d1 UNION ALL SELECT a,b FROM d2 ORDER BY x, x/z" {
+    1 -1 1 0 1 0 1 0 1 0 1 0 2 -2 2 0 
+    babied charitableness barked interrupted commercials bathrobe gently
+    failings iterate sexton lad relenting pragmatist guarded reemphasizes reply
+    rejoicing liabilities solemnness annexed
+  }
+} 
+
+do_execsql_test e_select-8.8.0 {
+  CREATE TABLE d3(a);
+  INSERT INTO d3 VALUES('text');
+  INSERT INTO d3 VALUES(14.1);
+  INSERT INTO d3 VALUES(13);
+  INSERT INTO d3 VALUES(X'78787878');
+  INSERT INTO d3 VALUES(15);
+  INSERT INTO d3 VALUES(12.9);
+  INSERT INTO d3 VALUES(null);
+
+  CREATE TABLE d4(x COLLATE nocase);
+  INSERT INTO d4 VALUES('abc');
+  INSERT INTO d4 VALUES('ghi');
+  INSERT INTO d4 VALUES('DEF');
+  INSERT INTO d4 VALUES('JKL');
+} {}
+
+# EVIDENCE-OF: R-10883-17697 For the purposes of sorting rows, values
+# are compared in the same way as for comparison expressions.
+#
+#   The following tests verify that values of different types are sorted
+#   correctly, and that mixed real and integer values are compared properly.
+#
+do_execsql_test e_select-8.8.1 {
+  SELECT a FROM d3 ORDER BY a
+} {{} 12.9 13 14.1 15 text xxxx}
+do_execsql_test e_select-8.8.2 {
+  SELECT a FROM d3 ORDER BY a DESC
+} {xxxx text 15 14.1 13 12.9 {}}
+
+
+# EVIDENCE-OF: R-64199-22471 If the ORDER BY expression is assigned a
+# collation sequence using the postfix COLLATE operator, then the
+# specified collation sequence is used.
+#
+do_execsql_test e_select-8.9.1 {
+  SELECT x FROM d4 ORDER BY 1 COLLATE binary
+} {DEF JKL abc ghi}
+do_execsql_test e_select-8.9.2 {
+  SELECT x COLLATE binary FROM d4 ORDER BY 1 COLLATE nocase
+} {abc DEF ghi JKL}
+
+# EVIDENCE-OF: R-09398-26102 Otherwise, if the ORDER BY expression is 
+# an alias to an expression that has been assigned a collation sequence 
+# using the postfix COLLATE operator, then the collation sequence 
+# assigned to the aliased expression is used.
+#
+#   In the test 8.10.2, the only result-column expression has no alias. So the
+#   ORDER BY expression is not a reference to it and therefore does not inherit
+#   the collation sequence. In test 8.10.3, "x" is the alias (as well as the
+#   column name), so the ORDER BY expression is interpreted as an alias and the
+#   collation sequence attached to the result column is used for sorting.
+#
+do_execsql_test e_select-8.10.1 {
+  SELECT x COLLATE binary FROM d4 ORDER BY 1
+} {DEF JKL abc ghi}
+do_execsql_test e_select-8.10.2 {
+  SELECT x COLLATE binary FROM d4 ORDER BY x
+} {abc DEF ghi JKL}
+do_execsql_test e_select-8.10.3 {
+  SELECT x COLLATE binary AS x FROM d4 ORDER BY x
+} {DEF JKL abc ghi}
+
+# EVIDENCE-OF: R-27301-09658 Otherwise, if the ORDER BY expression is a
+# column or an alias of an expression that is a column, then the default
+# collation sequence for the column is used.
+#
+do_execsql_test e_select-8.11.1 {
+  SELECT x AS y FROM d4 ORDER BY y
+} {abc DEF ghi JKL}
+do_execsql_test e_select-8.11.2 {
+  SELECT x||'' FROM d4 ORDER BY x
+} {abc DEF ghi JKL}
+
+# EVIDENCE-OF: R-49925-55905 Otherwise, the BINARY collation sequence is
+# used.
+#
+do_execsql_test e_select-8.12.1 {
+  SELECT x FROM d4 ORDER BY x||''
+} {DEF JKL abc ghi}
+
+# EVIDENCE-OF: R-44130-32593 If an ORDER BY expression is not an integer
+# alias, then SQLite searches the left-most SELECT in the compound for a
+# result column that matches either the second or third rules above. If
+# a match is found, the search stops and the expression is handled as an
+# alias for the result column that it has been matched against.
+# Otherwise, the next SELECT to the right is tried, and so on.
+#
+do_execsql_test e_select-8.13.0 {
+  CREATE TABLE d5(a, b);
+  CREATE TABLE d6(c, d);
+  CREATE TABLE d7(e, f);
+ 
+  INSERT INTO d5 VALUES(1, 'f');
+  INSERT INTO d6 VALUES(2, 'e');
+  INSERT INTO d7 VALUES(3, 'd');
+  INSERT INTO d5 VALUES(4, 'c');
+  INSERT INTO d6 VALUES(5, 'b');
+  INSERT INTO d7 VALUES(6, 'a');
+
+  CREATE TABLE d8(x COLLATE nocase);
+  CREATE TABLE d9(y COLLATE nocase);
+
+  INSERT INTO d8 VALUES('a');
+  INSERT INTO d9 VALUES('B');
+  INSERT INTO d8 VALUES('c');
+  INSERT INTO d9 VALUES('D');
+} {}
+do_select_tests e_select-8.13 {
+  1   { SELECT a FROM d5 UNION ALL SELECT c FROM d6 UNION ALL SELECT e FROM d7
+         ORDER BY a
+      } {1 2 3 4 5 6}
+  2   { SELECT a FROM d5 UNION ALL SELECT c FROM d6 UNION ALL SELECT e FROM d7
+         ORDER BY c
+      } {1 2 3 4 5 6}
+  3   { SELECT a FROM d5 UNION ALL SELECT c FROM d6 UNION ALL SELECT e FROM d7
+         ORDER BY e
+      } {1 2 3 4 5 6}
+  4   { SELECT a FROM d5 UNION ALL SELECT c FROM d6 UNION ALL SELECT e FROM d7
+         ORDER BY 1
+      } {1 2 3 4 5 6}
+
+  5   { SELECT a, b FROM d5 UNION ALL SELECT b, a FROM d5 ORDER BY b } 
+      {f 1   c 4   4 c   1 f}
+  6   { SELECT a, b FROM d5 UNION ALL SELECT b, a FROM d5 ORDER BY 2 } 
+      {f 1   c 4   4 c   1 f}
+
+  7   { SELECT a, b FROM d5 UNION ALL SELECT b, a FROM d5 ORDER BY a } 
+      {1 f   4 c   c 4   f 1}
+  8   { SELECT a, b FROM d5 UNION ALL SELECT b, a FROM d5 ORDER BY 1 } 
+      {1 f   4 c   c 4   f 1}
+
+  9   { SELECT a, b FROM d5 UNION ALL SELECT b, a+1 FROM d5 ORDER BY a+1 } 
+      {f 2   c 5   4 c   1 f}
+  10  { SELECT a, b FROM d5 UNION ALL SELECT b, a+1 FROM d5 ORDER BY 2 } 
+      {f 2   c 5   4 c   1 f}
+
+  11  { SELECT a+1, b FROM d5 UNION ALL SELECT b, a+1 FROM d5 ORDER BY a+1 } 
+      {2 f   5 c   c 5   f 2}
+  12  { SELECT a+1, b FROM d5 UNION ALL SELECT b, a+1 FROM d5 ORDER BY 1 } 
+      {2 f   5 c   c 5   f 2}
+} 
+
+# EVIDENCE-OF: R-39265-04070 If no matching expression can be found in
+# the result columns of any constituent SELECT, it is an error.
+#
+do_select_tests e_select-8.14 -error {
+  %s ORDER BY term does not match any column in the result set
+} {
+  1   { SELECT a FROM d5 UNION SELECT c FROM d6 ORDER BY a+1 }          1st
+  2   { SELECT a FROM d5 UNION SELECT c FROM d6 ORDER BY a, a+1 }       2nd
+  3   { SELECT * FROM d5 INTERSECT SELECT * FROM d6 ORDER BY 'hello' }  1st
+  4   { SELECT * FROM d5 INTERSECT SELECT * FROM d6 ORDER BY blah    }  1st
+  5   { SELECT * FROM d5 INTERSECT SELECT * FROM d6 ORDER BY c,d,c+d }  3rd
+  6   { SELECT * FROM d5 EXCEPT SELECT * FROM d7 ORDER BY 1,2,b,a/b  }  4th
+} 
+
+# EVIDENCE-OF: R-03407-11483 Each term of the ORDER BY clause is
+# processed separately and may be matched against result columns from
+# different SELECT statements in the compound.
+# 
+do_select_tests e_select-8.15 {
+  1  { SELECT a, b FROM d5 UNION ALL SELECT c-1, d FROM d6 ORDER BY a, d }
+     {1 e   1 f   4 b   4 c}
+  2  { SELECT a, b FROM d5 UNION ALL SELECT c-1, d FROM d6 ORDER BY c-1, b }
+     {1 e   1 f   4 b   4 c}
+  3  { SELECT a, b FROM d5 UNION ALL SELECT c-1, d FROM d6 ORDER BY 1, 2 }
+     {1 e   1 f   4 b   4 c}
+} 
+
+
+#-------------------------------------------------------------------------
+# Tests related to statements made about the LIMIT/OFFSET clause.
+#
+do_execsql_test e_select-9.0 {
+  CREATE TABLE f1(a, b);
+  INSERT INTO f1 VALUES(26, 'z');
+  INSERT INTO f1 VALUES(25, 'y');
+  INSERT INTO f1 VALUES(24, 'x');
+  INSERT INTO f1 VALUES(23, 'w');
+  INSERT INTO f1 VALUES(22, 'v');
+  INSERT INTO f1 VALUES(21, 'u');
+  INSERT INTO f1 VALUES(20, 't');
+  INSERT INTO f1 VALUES(19, 's');
+  INSERT INTO f1 VALUES(18, 'r');
+  INSERT INTO f1 VALUES(17, 'q');
+  INSERT INTO f1 VALUES(16, 'p');
+  INSERT INTO f1 VALUES(15, 'o');
+  INSERT INTO f1 VALUES(14, 'n');
+  INSERT INTO f1 VALUES(13, 'm');
+  INSERT INTO f1 VALUES(12, 'l');
+  INSERT INTO f1 VALUES(11, 'k');
+  INSERT INTO f1 VALUES(10, 'j');
+  INSERT INTO f1 VALUES(9, 'i');
+  INSERT INTO f1 VALUES(8, 'h');
+  INSERT INTO f1 VALUES(7, 'g');
+  INSERT INTO f1 VALUES(6, 'f');
+  INSERT INTO f1 VALUES(5, 'e');
+  INSERT INTO f1 VALUES(4, 'd');
+  INSERT INTO f1 VALUES(3, 'c');
+  INSERT INTO f1 VALUES(2, 'b');
+  INSERT INTO f1 VALUES(1, 'a');
+} {}
+
+# EVIDENCE-OF: R-30481-56627 Any scalar expression may be used in the
+# LIMIT clause, so long as it evaluates to an integer or a value that
+# can be losslessly converted to an integer.
+#
+do_select_tests e_select-9.1 {
+  1  { SELECT b FROM f1 ORDER BY a LIMIT 5 } {a b c d e}
+  2  { SELECT b FROM f1 ORDER BY a LIMIT 2+3 } {a b c d e}
+  3  { SELECT b FROM f1 ORDER BY a LIMIT (SELECT a FROM f1 WHERE b = 'e') } 
+     {a b c d e}
+  4  { SELECT b FROM f1 ORDER BY a LIMIT 5.0 } {a b c d e}
+  5  { SELECT b FROM f1 ORDER BY a LIMIT '5' } {a b c d e}
+}
+
+# EVIDENCE-OF: R-46155-47219 If the expression evaluates to a NULL value
+# or any other value that cannot be losslessly converted to an integer,
+# an error is returned.
+#
+
+do_select_tests e_select-9.2 -error "datatype mismatch" {
+  1  { SELECT b FROM f1 ORDER BY a LIMIT 'hello' } {}
+  2  { SELECT b FROM f1 ORDER BY a LIMIT NULL } {}
+  3  { SELECT b FROM f1 ORDER BY a LIMIT X'ABCD' } {}
+  4  { SELECT b FROM f1 ORDER BY a LIMIT 5.1 } {}
+  5  { SELECT b FROM f1 ORDER BY a LIMIT (SELECT group_concat(b) FROM f1) } {}
+} 
+
+# EVIDENCE-OF: R-03014-26414 If the LIMIT expression evaluates to a
+# negative value, then there is no upper bound on the number of rows
+# returned.
+#
+do_select_tests e_select-9.4 {
+  1  { SELECT b FROM f1 ORDER BY a LIMIT -1 } 
+     {a b c d e f g h i j k l m n o p q r s t u v w x y z}
+  2  { SELECT b FROM f1 ORDER BY a LIMIT length('abc')-100 } 
+     {a b c d e f g h i j k l m n o p q r s t u v w x y z}
+  3  { SELECT b FROM f1 ORDER BY a LIMIT (SELECT count(*) FROM f1)/2 - 14 }
+     {a b c d e f g h i j k l m n o p q r s t u v w x y z}
+}
+
+# EVIDENCE-OF: R-33750-29536 Otherwise, the SELECT returns the first N
+# rows of its result set only, where N is the value that the LIMIT
+# expression evaluates to.
+#
+do_select_tests e_select-9.5 {
+  1  { SELECT b FROM f1 ORDER BY a LIMIT 0 } {}
+  2  { SELECT b FROM f1 ORDER BY a DESC LIMIT 4 } {z y x w}
+  3  { SELECT b FROM f1 ORDER BY a DESC LIMIT 8 } {z y x w v u t s}
+  4  { SELECT b FROM f1 ORDER BY a DESC LIMIT '12.0' } {z y x w v u t s r q p o}
+}
+
+# EVIDENCE-OF: R-54935-19057 Or, if the SELECT statement would return
+# less than N rows without a LIMIT clause, then the entire result set is
+# returned.
+#
+do_select_tests e_select-9.6 {
+  1  { SELECT b FROM f1 WHERE a>21 ORDER BY a LIMIT 10 } {v w x y z}
+  2  { SELECT count(*) FROM f1 GROUP BY a/5 ORDER BY 1 LIMIT 10 } {2 4 5 5 5 5}
+} 
+
+
+# EVIDENCE-OF: R-24188-24349 The expression attached to the optional
+# OFFSET clause that may follow a LIMIT clause must also evaluate to an
+# integer, or a value that can be losslessly converted to an integer.
+#
+foreach {tn select} {
+  1  { SELECT b FROM f1 ORDER BY a LIMIT 2 OFFSET 'hello' } 
+  2  { SELECT b FROM f1 ORDER BY a LIMIT 2 OFFSET NULL } 
+  3  { SELECT b FROM f1 ORDER BY a LIMIT 2 OFFSET X'ABCD' } 
+  4  { SELECT b FROM f1 ORDER BY a LIMIT 2 OFFSET 5.1 } 
+  5  { SELECT b FROM f1 ORDER BY a 
+       LIMIT 2 OFFSET (SELECT group_concat(b) FROM f1) 
+  } 
+} {
+  do_catchsql_test e_select-9.7.$tn $select {1 {datatype mismatch}}
+}
+
+# EVIDENCE-OF: R-20467-43422 If an expression has an OFFSET clause, then
+# the first M rows are omitted from the result set returned by the
+# SELECT statement and the next N rows are returned, where M and N are
+# the values that the OFFSET and LIMIT clauses evaluate to,
+# respectively.
+#
+do_select_tests e_select-9.8 {
+  1  { SELECT b FROM f1 ORDER BY a LIMIT 10 OFFSET 5} {f g h i j k l m n o}
+  2  { SELECT b FROM f1 ORDER BY a LIMIT 2+3 OFFSET 10} {k l m n o}
+  3  { SELECT b FROM f1 ORDER BY a 
+       LIMIT  (SELECT a FROM f1 WHERE b='j') 
+       OFFSET (SELECT a FROM f1 WHERE b='b') 
+     } {c d e f g h i j k l}
+  4  { SELECT b FROM f1 ORDER BY a LIMIT '5' OFFSET 3.0 } {d e f g h}
+  5  { SELECT b FROM f1 ORDER BY a LIMIT '5' OFFSET 0 } {a b c d e}
+  6  { SELECT b FROM f1 ORDER BY a LIMIT 0 OFFSET 10 } {}
+  7  { SELECT b FROM f1 ORDER BY a LIMIT 3 OFFSET '1'||'5' } {p q r}
+}
+
+# EVIDENCE-OF: R-34648-44875 Or, if the SELECT would return less than
+# M+N rows if it did not have a LIMIT clause, then the first M rows are
+# skipped and the remaining rows (if any) are returned.
+#
+do_select_tests e_select-9.9 {
+  1  { SELECT b FROM f1 ORDER BY a LIMIT 10 OFFSET 20} {u v w x y z}
+  2  { SELECT a FROM f1 ORDER BY a DESC LIMIT 100 OFFSET 18+4} {4 3 2 1}
+}
+
+
+# EVIDENCE-OF: R-23293-62447 If the OFFSET clause evaluates to a
+# negative value, the results are the same as if it had evaluated to
+# zero.
+#
+do_select_tests e_select-9.10 {
+  1  { SELECT b FROM f1 ORDER BY a LIMIT 5 OFFSET -1 } {a b c d e}
+  2  { SELECT b FROM f1 ORDER BY a LIMIT 5 OFFSET -500 } {a b c d e}
+  3  { SELECT b FROM f1 ORDER BY a LIMIT 5 OFFSET 0  } {a b c d e}
+} 
+
+# EVIDENCE-OF: R-19509-40356 Instead of a separate OFFSET clause, the
+# LIMIT clause may specify two scalar expressions separated by a comma.
+#
+# EVIDENCE-OF: R-33788-46243 In this case, the first expression is used
+# as the OFFSET expression and the second as the LIMIT expression.
+#
+do_select_tests e_select-9.11 {
+  1  { SELECT b FROM f1 ORDER BY a LIMIT 5, 10 } {f g h i j k l m n o}
+  2  { SELECT b FROM f1 ORDER BY a LIMIT 10, 2+3 } {k l m n o}
+  3  { SELECT b FROM f1 ORDER BY a 
+       LIMIT (SELECT a FROM f1 WHERE b='b'), (SELECT a FROM f1 WHERE b='j') 
+     } {c d e f g h i j k l}
+  4  { SELECT b FROM f1 ORDER BY a LIMIT 3.0, '5' } {d e f g h}
+  5  { SELECT b FROM f1 ORDER BY a LIMIT 0, '5' } {a b c d e}
+  6  { SELECT b FROM f1 ORDER BY a LIMIT 10, 0 } {}
+  7  { SELECT b FROM f1 ORDER BY a LIMIT '1'||'5', 3 } {p q r}
+
+  8  { SELECT b FROM f1 ORDER BY a LIMIT 20, 10 } {u v w x y z}
+  9  { SELECT a FROM f1 ORDER BY a DESC LIMIT 18+4, 100 } {4 3 2 1}
+
+  10 { SELECT b FROM f1 ORDER BY a LIMIT -1, 5 } {a b c d e}
+  11 { SELECT b FROM f1 ORDER BY a LIMIT -500, 5 } {a b c d e}
+  12 { SELECT b FROM f1 ORDER BY a LIMIT 0, 5 } {a b c d e}
+}
+
+finish_test
diff --git a/test/e_select2.test b/test/e_select2.test
new file mode 100644
index 0000000000000000000000000000000000000000..8330894428e4fa90dba3195dbfbac21c1ea6575a
--- /dev/null
+++ b/test/e_select2.test
@@ -0,0 +1,580 @@
+# 2010 September 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements tests to verify that the "testable statements" in 
+# the lang_select.html document are correct.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+#-------------------------------------------------------------------------
+# te_* commands:
+#
+#
+#   te_read_sql DB SELECT-STATEMENT
+#   te_read_tbl DB TABLENAME
+#
+# These two commands are used to read a dataset from the database. A dataset
+# consists of N rows of M named columns of values each, where each value has a
+# type (null, integer, real, text or blob) and a value within the types domain.
+# The tcl format for a "dataset" is a list of two elements:
+#
+#   * A list of the column names.
+#   * A list of data rows. Each row is itself a list, where each element is
+#     the contents of a column of the row. Each of these is a list of two
+#     elements, the type name and the actual value.
+#
+# For example, the contents of table [t1] as a dataset is:
+#
+#   CREATE TABLE t1(a, b);
+#   INSERT INTO t1 VALUES('abc', NULL);
+#   INSERT INTO t1 VALUES(43.1, 22);
+#
+#   {a b} {{{TEXT abc} {NULL {}}} {{REAL 43.1} {INTEGER 22}}}
+#
+# The [te_read_tbl] command returns a dataset read from a table. The
+# [te_read_sql] returns the dataset that results from executing a SELECT
+# command.
+#
+#
+#   te_tbljoin ?SWITCHES? LHS-TABLE RHS-TABLE
+#   te_join ?SWITCHES? LHS-DATASET RHS-DATASET
+#
+# This command joins the two datasets and returns the resulting dataset. If 
+# there are no switches specified, then the results is the cartesian product
+# of the two inputs.  The [te_tbljoin] command reads the left and right-hand
+# datasets from the specified tables. The [te_join] command is passed the
+# datasets directly.
+#
+# Optional switches are as follows:
+#
+#   -on SCRIPT
+#   -using COLUMN-LIST
+#   -left
+#
+# The -on option specifies a tcl script that is executed for each row in the
+# cartesian product of the two datasets. The script has 4 arguments appended
+# to it, in the following order:
+#
+#   * The list of column-names from the left-hand dataset.
+#   * A single row from the left-hand dataset (one "data row" list as 
+#     described above.
+#   * The list of column-names from the right-hand dataset.
+#   * A single row from the right-hand dataset.
+#
+# The script must return a boolean value - true if the combination of rows
+# should be included in the output dataset, or false otherwise.
+#
+# The -using option specifies a list of the columns from the right-hand
+# dataset that should be omitted from the output dataset.
+#
+# If the -left option is present, the join is done LEFT JOIN style. 
+# Specifically, an extra row is inserted if after the -on script is run there
+# exist rows in the left-hand dataset that have no corresponding rows in
+# the output. See the implementation for more specific comments.
+#
+#
+#   te_equals ?SWITCHES? COLNAME1 COLNAME2 <-on script args>
+#
+# The only supported switch is "-nocase". If it is present, then text values
+# are compared in a case-independent fashion. Otherwise, they are compared
+# as if using the SQLite BINARY collation sequence.
+#
+#
+#   te_and ONSCRIPT1 ONSCRIPT2...
+#
+#
+
+
+#
+#   te_read_tbl DB TABLENAME
+#   te_read_sql DB SELECT-STATEMENT
+#
+# These two procs are used to extract datasets from the database, either
+# by reading the contents of a named table (te_read_tbl), or by executing
+# a SELECT statement (t3_read_sql).  
+#
+# See the comment above, describing "te_* commands", for details of the
+# return values.
+#
+proc te_read_tbl {db tbl} {
+ te_read_sql $db "SELECT * FROM '$tbl'"
+}
+proc te_read_sql {db sql} {
+  set S [sqlite3_prepare_v2 $db $sql -1 DUMMY]
+
+  set cols [list]
+  for {set i 0} {$i < [sqlite3_column_count $S]} {incr i} {
+    lappend cols [sqlite3_column_name $S $i]
+  }
+
+  set rows [list]
+  while {[sqlite3_step $S] == "SQLITE_ROW"} {
+    set r [list]
+    for {set i 0} {$i < [sqlite3_column_count $S]} {incr i} {
+      lappend r [list [sqlite3_column_type $S $i] [sqlite3_column_text $S $i]]
+    }
+    lappend rows $r
+  }
+  sqlite3_finalize $S
+
+  return [list $cols $rows]
+}
+
+#-------
+# Usage:   te_join <table-data1> <table-data2> <join spec>...
+#
+# Where a join-spec is an optional list of arguments as follows:
+#
+#   ?-left?
+#   ?-using colname-list?
+#   ?-on on-expr-proc?
+#
+proc te_join {data1 data2 args} {
+
+  set testproc ""
+  set usinglist [list]
+  set isleft 0
+  for {set i 0} {$i < [llength $args]} {incr i} {
+    set a [lindex $args $i]
+    switch -- $a {
+      -on     { set testproc [lindex $args [incr i]] }
+      -using  { set usinglist [lindex $args [incr i]] }
+      -left   { set isleft 1 }
+      default {
+        error "Unknown argument: $a"
+      }
+    }
+  }
+
+  set c1 [lindex $data1 0]
+  set c2 [lindex $data2 0]
+  set omitlist [list]
+  set nullrowlist [list]
+  set cret $c1
+
+  set cidx 0
+  foreach col $c2 {
+    set idx [lsearch $usinglist $col]
+    if {$idx>=0} {lappend omitlist $cidx}
+    if {$idx<0} {
+      lappend nullrowlist {NULL {}}
+      lappend cret $col
+    }
+    incr cidx
+  }
+  set omitlist [lsort -integer -decreasing $omitlist]
+
+
+  set rret [list]
+  foreach r1 [lindex $data1 1] {
+    set one 0
+    foreach r2 [lindex $data2 1] {
+      set ok 1
+      if {$testproc != ""} {
+        set ok [eval $testproc [list $c1 $r1 $c2 $r2]]
+      }
+      if {$ok} {
+        set one 1
+        foreach idx $omitlist {set r2 [lreplace $r2 $idx $idx]}
+        lappend rret [concat $r1 $r2]
+      }
+    }
+
+    if {$isleft && $one==0} {
+      lappend rret [concat $r1 $nullrowlist]
+    }
+  }
+  
+  list $cret $rret
+}
+
+proc te_tbljoin {db t1 t2 args} {
+  te_join [te_read_tbl $db $t1] [te_read_tbl $db $t2] {*}$args
+}
+
+proc te_apply_affinity {affinity typevar valvar} {
+  upvar $typevar type
+  upvar $valvar val
+
+  switch -- $affinity {
+    integer {
+      if {[string is double $val]} { set type REAL }
+      if {[string is wideinteger $val]} { set type INTEGER }
+      if {$type == "REAL" && int($val)==$val} { 
+        set type INTEGER 
+        set val [expr {int($val)}]
+      }
+    }
+    text {
+      set type TEXT
+    }
+    none { }
+
+    default { error "invalid affinity: $affinity" }
+  }
+}
+
+#----------
+# te_equals ?SWITCHES? c1 c2 cols1 row1 cols2 row2
+#
+proc te_equals {args} {
+
+  if {[llength $args]<6} {error "invalid arguments to te_equals"}
+  foreach {c1 c2 cols1 row1 cols2 row2} [lrange $args end-5 end] break
+
+  set nocase 0
+  set affinity none
+
+  for {set i 0} {$i < ([llength $args]-6)} {incr i} {
+    set a [lindex $args $i]
+    switch -- $a {
+      -nocase {
+        set nocase 1
+      }
+      -affinity {
+        set affinity [string tolower [lindex $args [incr i]]]
+      }
+      default {
+        error "invalid arguments to te_equals"
+      }
+    }
+  }
+
+  set idx2 [if {[string is integer $c2]} { set c2 } else { lsearch $cols2 $c2 }]
+  set idx1 [if {[string is integer $c1]} { set c1 } else { lsearch $cols1 $c1 }]
+
+  set t1 [lindex $row1 $idx1 0]
+  set t2 [lindex $row2 $idx2 0]
+  set v1 [lindex $row1 $idx1 1]
+  set v2 [lindex $row2 $idx2 1]
+
+  te_apply_affinity $affinity t1 v1
+  te_apply_affinity $affinity t2 v2
+
+  if {$t1 == "NULL" || $t2 == "NULL"} { return 0 }
+  if {$nocase && $t1 == "TEXT"} { set v1 [string tolower $v1] }
+  if {$nocase && $t2 == "TEXT"} { set v2 [string tolower $v2] }
+
+
+  set res [expr {$t1 == $t2 && [string equal $v1 $v2]}]
+  return $res
+}
+
+proc te_false {args} { return 0 }
+proc te_true  {args} { return 1 }
+
+proc te_and {args} {
+  foreach a [lrange $args 0 end-4] {
+    set res [eval $a [lrange $args end-3 end]]
+    if {$res == 0} {return 0}
+  }
+  return 1
+}
+
+
+proc te_dataset_eq {testname got expected} {
+  uplevel #0 [list do_test $testname [list set {} $got] $expected]
+}
+proc te_dataset_eq_unordered {testname got expected} {
+  lset got      1 [lsort [lindex $got 1]]
+  lset expected 1 [lsort [lindex $expected 1]]
+  te_dataset_eq $testname $got $expected
+}
+
+proc te_dataset_ne {testname got unexpected} {
+  uplevel #0 [list do_test $testname [list string equal $got $unexpected] 0]
+}
+proc te_dataset_ne_unordered {testname got unexpected} {
+  lset got      1 [lsort [lindex $got 1]]
+  lset unexpected 1 [lsort [lindex $unexpected 1]]
+  te_dataset_ne $testname $got $unexpected
+}
+
+
+#-------------------------------------------------------------------------
+#
+proc test_join {tn sqljoin tbljoinargs} {
+  set sql [te_read_sql db "SELECT * FROM $sqljoin"]
+  set te  [te_tbljoin db {*}$tbljoinargs]
+  te_dataset_eq_unordered $tn $sql $te
+}
+
+drop_all_tables
+do_execsql_test e_select-2.0 {
+  CREATE TABLE t1(a, b);
+  CREATE TABLE t2(a, b);
+  CREATE TABLE t3(b COLLATE nocase);
+
+  INSERT INTO t1 VALUES(2, 'B');
+  INSERT INTO t1 VALUES(1, 'A');
+  INSERT INTO t1 VALUES(4, 'D');
+  INSERT INTO t1 VALUES(NULL, NULL);
+  INSERT INTO t1 VALUES(3, NULL);
+
+  INSERT INTO t2 VALUES(1, 'A');
+  INSERT INTO t2 VALUES(2, NULL);
+  INSERT INTO t2 VALUES(5, 'E');
+  INSERT INTO t2 VALUES(NULL, NULL);
+  INSERT INTO t2 VALUES(3, 'C');
+
+  INSERT INTO t3 VALUES('a');
+  INSERT INTO t3 VALUES('c');
+  INSERT INTO t3 VALUES('b');
+} {}
+
+foreach {tn indexes} {
+  e_select-2.1.1 { }
+  e_select-2.1.2 { CREATE INDEX i1 ON t1(a) }
+  e_select-2.1.3 { CREATE INDEX i1 ON t2(a) }
+  e_select-2.1.4 { CREATE INDEX i1 ON t3(b) }
+} {
+
+  catchsql { DROP INDEX i1 }
+  catchsql { DROP INDEX i2 }
+  catchsql { DROP INDEX i3 }
+  execsql $indexes
+
+  # EVIDENCE-OF: R-49872-03192 If the join-operator is "CROSS JOIN",
+  # "INNER JOIN", "JOIN" or a comma (",") and there is no ON or USING
+  # clause, then the result of the join is simply the cartesian product of
+  # the left and right-hand datasets.
+  #
+  # EVIDENCE-OF: R-46256-57243 There is no difference between the "INNER
+  # JOIN", "JOIN" and "," join operators.
+  #
+  # EVIDENCE-OF: R-25071-21202 The "CROSS JOIN" join operator produces the
+  # same result as the "INNER JOIN", "JOIN" and "," operators
+  #
+  test_join $tn.1.1  "t1, t2"                {t1 t2}
+  test_join $tn.1.2  "t1 INNER JOIN t2"      {t1 t2}
+  test_join $tn.1.3  "t1 CROSS JOIN t2"      {t1 t2}
+  test_join $tn.1.4  "t1 JOIN t2"            {t1 t2}
+  test_join $tn.1.5  "t2, t3"                {t2 t3}
+  test_join $tn.1.6  "t2 INNER JOIN t3"      {t2 t3}
+  test_join $tn.1.7  "t2 CROSS JOIN t3"      {t2 t3}
+  test_join $tn.1.8  "t2 JOIN t3"            {t2 t3}
+  test_join $tn.1.9  "t2, t2 AS x"           {t2 t2}
+  test_join $tn.1.10 "t2 INNER JOIN t2 AS x" {t2 t2}
+  test_join $tn.1.11 "t2 CROSS JOIN t2 AS x" {t2 t2}
+  test_join $tn.1.12 "t2 JOIN t2 AS x"       {t2 t2}
+
+  # EVIDENCE-OF: R-38465-03616 If there is an ON clause then the ON
+  # expression is evaluated for each row of the cartesian product as a
+  # boolean expression. Only rows for which the expression evaluates to
+  # true are included from the dataset.
+  #
+  test_join $tn.2.1  "t1, t2 ON (t1.a=t2.a)"  {t1 t2 -on {te_equals a a}}
+  test_join $tn.2.2  "t2, t1 ON (t1.a=t2.a)"  {t2 t1 -on {te_equals a a}}
+  test_join $tn.2.3  "t2, t1 ON (1)"          {t2 t1 -on te_true}
+  test_join $tn.2.4  "t2, t1 ON (NULL)"       {t2 t1 -on te_false}
+  test_join $tn.2.5  "t2, t1 ON (1.1-1.1)"    {t2 t1 -on te_false}
+  test_join $tn.2.6  "t1, t2 ON (1.1-1.0)"    {t1 t2 -on te_true}
+
+
+  test_join $tn.3 "t1 LEFT JOIN t2 ON (t1.a=t2.a)" {t1 t2 -left -on {te_equals a a}}
+  test_join $tn.4 "t1 LEFT JOIN t2 USING (a)" {
+    t1 t2 -left -using a -on {te_equals a a}
+  }
+  test_join $tn.5 "t1 CROSS JOIN t2 USING(b, a)" {
+    t1 t2 -using {a b} -on {te_and {te_equals a a} {te_equals b b}}
+  }
+  test_join $tn.6 "t1 NATURAL JOIN t2" {
+    t1 t2 -using {a b} -on {te_and {te_equals a a} {te_equals b b}}
+  }
+  test_join $tn.7 "t1 NATURAL INNER JOIN t2" {
+    t1 t2 -using {a b} -on {te_and {te_equals a a} {te_equals b b}}
+  }
+  test_join $tn.8 "t1 NATURAL CROSS JOIN t2" {
+    t1 t2 -using {a b} -on {te_and {te_equals a a} {te_equals b b}}
+  }
+  test_join $tn.9 "t1 NATURAL INNER JOIN t2" {
+    t1 t2 -using {a b} -on {te_and {te_equals a a} {te_equals b b}}
+  }
+  test_join $tn.10 "t1 NATURAL LEFT JOIN t2" {
+    t1 t2 -left -using {a b} -on {te_and {te_equals a a} {te_equals b b}}
+  }
+  test_join $tn.11 "t1 NATURAL LEFT OUTER JOIN t2" {
+    t1 t2 -left -using {a b} -on {te_and {te_equals a a} {te_equals b b}}
+  }
+  test_join $tn.12 "t2 NATURAL JOIN t1" {
+    t2 t1 -using {a b} -on {te_and {te_equals a a} {te_equals b b}}
+  }
+  test_join $tn.13 "t2 NATURAL INNER JOIN t1" {
+    t2 t1 -using {a b} -on {te_and {te_equals a a} {te_equals b b}}
+  }
+  test_join $tn.14 "t2 NATURAL CROSS JOIN t1" {
+    t2 t1 -using {a b} -on {te_and {te_equals a a} {te_equals b b}}
+  }
+  test_join $tn.15 "t2 NATURAL INNER JOIN t1" {
+    t2 t1 -using {a b} -on {te_and {te_equals a a} {te_equals b b}}
+  }
+  test_join $tn.16 "t2 NATURAL LEFT JOIN t1" {
+    t2 t1 -left -using {a b} -on {te_and {te_equals a a} {te_equals b b}}
+  }
+  test_join $tn.17 "t2 NATURAL LEFT OUTER JOIN t1" {
+    t2 t1 -left -using {a b} -on {te_and {te_equals a a} {te_equals b b}}
+  }
+  test_join $tn.18 "t1 LEFT JOIN t2 USING (b)" {
+    t1 t2 -left -using b -on {te_equals b b}
+  }
+  test_join $tn.19 "t1 JOIN t3 USING(b)" {t1 t3 -using b -on {te_equals b b}}
+  test_join $tn.20 "t3 JOIN t1 USING(b)" {
+    t3 t1 -using b -on {te_equals -nocase b b}
+  }
+  test_join $tn.21 "t1 NATURAL JOIN t3"  {
+    t1 t3 -using b -on {te_equals b b}
+  }
+  test_join $tn.22 "t3 NATURAL JOIN t1"  {
+    t3 t1 -using b -on {te_equals -nocase b b}
+  }
+  test_join $tn.23 "t1 NATURAL LEFT JOIN t3" {
+    t1 t3 -left -using b -on {te_equals b b}
+  }
+  test_join $tn.24 "t3 NATURAL LEFT JOIN t1" {
+    t3 t1 -left -using b -on {te_equals -nocase b b}
+  }
+  test_join $tn.25 "t1 LEFT JOIN t3 ON (t3.b=t1.b)" {
+    t1 t3 -left -on {te_equals -nocase b b}
+  }
+  test_join $tn.26 "t1 LEFT JOIN t3 ON (t1.b=t3.b)" {
+    t1 t3 -left -on {te_equals b b}
+  }
+  test_join $tn.27 "t1 JOIN t3 ON (t1.b=t3.b)" { t1 t3 -on {te_equals b b} }
+
+  # EVIDENCE-OF: R-28760-53843 When more than two tables are joined
+  # together as part of a FROM clause, the join operations are processed
+  # in order from left to right. In other words, the FROM clause (A
+  # join-op-1 B join-op-2 C) is computed as ((A join-op-1 B) join-op-2 C).
+  #
+  #   Tests 28a and 28b show that the statement above is true for this case.
+  #   Test 28c shows that if the parenthesis force a different order of
+  #   evaluation the result is different. Test 28d verifies that the result
+  #   of the query with the parenthesis forcing a different order of evaluation
+  #   is as calculated by the [te_*] procs.
+  #
+  set t3_natural_left_join_t2 [
+    te_tbljoin db t3 t2 -left -using {b} -on {te_equals -nocase b b}
+  ]
+  set t1 [te_read_tbl db t1]
+  te_dataset_eq_unordered $tn.28a [
+    te_read_sql db "SELECT * FROM t3 NATURAL LEFT JOIN t2 NATURAL JOIN t1"
+  ] [te_join $t3_natural_left_join_t2 $t1                                \
+      -using {a b} -on {te_and {te_equals a a} {te_equals -nocase b b}}  \
+  ]
+
+  te_dataset_eq_unordered $tn.28b [
+    te_read_sql db "SELECT * FROM (t3 NATURAL LEFT JOIN t2) NATURAL JOIN t1"
+  ] [te_join $t3_natural_left_join_t2 $t1                                \
+      -using {a b} -on {te_and {te_equals a a} {te_equals -nocase b b}}  \
+  ]
+
+  te_dataset_ne_unordered $tn.28c [
+    te_read_sql db "SELECT * FROM (t3 NATURAL LEFT JOIN t2) NATURAL JOIN t1"
+  ] [
+    te_read_sql db "SELECT * FROM t3 NATURAL LEFT JOIN (t2 NATURAL JOIN t1)"
+  ]
+
+  set t2_natural_join_t1 [te_tbljoin db t2 t1 -using {a b}                 \
+        -using {a b} -on {te_and {te_equals a a} {te_equals -nocase b b}}  \
+  ]
+  set t3 [te_read_tbl db t3]
+  te_dataset_eq_unordered $tn.28d [
+    te_read_sql db "SELECT * FROM t3 NATURAL LEFT JOIN (t2 NATURAL JOIN t1)"
+  ] [te_join $t3 $t2_natural_join_t1                                       \
+      -left -using {b} -on {te_equals -nocase b b}                         \
+  ]
+}
+
+do_execsql_test e_select-2.2.0 {
+  CREATE TABLE t4(x TEXT COLLATE nocase);
+  CREATE TABLE t5(y INTEGER, z TEXT COLLATE binary);
+
+  INSERT INTO t4 VALUES('2.0');
+  INSERT INTO t4 VALUES('TWO');
+  INSERT INTO t5 VALUES(2, 'two');
+} {}
+
+# EVIDENCE-OF: R-59237-46742 A subquery specified in the
+# table-or-subquery following the FROM clause in a simple SELECT
+# statement is handled as if it was a table containing the data returned
+# by executing the subquery statement.
+#
+# EVIDENCE-OF: R-27438-53558 Each column of the subquery has the
+# collation sequence and affinity of the corresponding expression in the
+# subquery statement.
+#
+foreach {tn subselect select spec} {
+  1   "SELECT * FROM t2"   "SELECT * FROM t1 JOIN %ss%" 
+      {t1 %ss%}
+
+  2   "SELECT * FROM t2"   "SELECT * FROM t1 JOIN %ss% AS x ON (t1.a=x.a)" 
+      {t1 %ss% -on {te_equals 0 0}}
+
+  3   "SELECT * FROM t2"   "SELECT * FROM %ss% AS x JOIN t1 ON (t1.a=x.a)" 
+      {%ss% t1 -on {te_equals 0 0}}
+
+  4   "SELECT * FROM t1, t2" "SELECT * FROM %ss% AS x JOIN t3"
+      {%ss% t3}
+
+  5   "SELECT * FROM t1, t2" "SELECT * FROM %ss% NATURAL JOIN t3"
+      {%ss% t3 -using b -on {te_equals 1 0}}
+
+  6   "SELECT * FROM t1, t2" "SELECT * FROM t3 NATURAL JOIN %ss%"
+      {t3 %ss% -using b -on {te_equals -nocase 0 1}}
+
+  7   "SELECT * FROM t1, t2" "SELECT * FROM t3 NATURAL LEFT JOIN %ss%"
+      {t3 %ss% -left -using b -on {te_equals -nocase 0 1}}
+
+  8   "SELECT count(*) AS y FROM t4"   "SELECT * FROM t5, %ss% USING (y)"
+      {t5 %ss% -using y -on {te_equals -affinity text 0 0}}
+
+  9   "SELECT count(*) AS y FROM t4"   "SELECT * FROM %ss%, t5 USING (y)"
+      {%ss% t5 -using y -on {te_equals -affinity text 0 0}}
+
+  10  "SELECT x AS y FROM t4"   "SELECT * FROM %ss% JOIN t5 USING (y)"
+      {%ss% t5 -using y -on {te_equals -nocase -affinity integer 0 0}}
+
+  11  "SELECT x AS y FROM t4"   "SELECT * FROM t5 JOIN %ss% USING (y)"
+      {t5 %ss% -using y -on {te_equals -nocase -affinity integer 0 0}}
+
+  12  "SELECT y AS x FROM t5"   "SELECT * FROM %ss% JOIN t4 USING (x)"
+      {%ss% t4 -using x -on {te_equals -nocase -affinity integer 0 0}}
+
+  13  "SELECT y AS x FROM t5"   "SELECT * FROM t4 JOIN %ss% USING (x)"
+      {t4 %ss% -using x -on {te_equals -nocase -affinity integer 0 0}}
+
+  14  "SELECT +y AS x FROM t5"   "SELECT * FROM %ss% JOIN t4 USING (x)"
+      {%ss% t4 -using x -on {te_equals -nocase -affinity text 0 0}}
+
+  15  "SELECT +y AS x FROM t5"   "SELECT * FROM t4 JOIN %ss% USING (x)"
+      {t4 %ss% -using x -on {te_equals -nocase -affinity text 0 0}}
+} {
+
+  # Create a temporary table named %ss% containing the data returned by
+  # the sub-select. Then have the [te_tbljoin] proc use this table to
+  # compute the expected results of the $select query. Drop the temporary
+  # table before continuing.
+  #
+  execsql "CREATE TEMP TABLE '%ss%' AS $subselect"
+  set te [eval te_tbljoin db $spec]
+  execsql "DROP TABLE '%ss%'"
+
+  # Check that the actual data returned by the $select query is the same
+  # as the expected data calculated using [te_tbljoin] above.
+  #
+  te_dataset_eq_unordered e_select-2.2.1.$tn [
+    te_read_sql db [string map [list %ss% "($subselect)"] $select]
+  ] $te
+}
+
+finish_test
diff --git a/test/e_totalchanges.test b/test/e_totalchanges.test
new file mode 100644
index 0000000000000000000000000000000000000000..bb5cfba8a51234440f44a29c5e08461c55e651e7
--- /dev/null
+++ b/test/e_totalchanges.test
@@ -0,0 +1,214 @@
+# 2011 May 06
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix e_totalchanges
+
+# Like [do_execsql_test], except it appends the value returned by 
+# [db total_changes] to the result of executing the SQL script.
+#
+proc do_tc_test {tn sql res} {
+  uplevel [list \
+    do_test $tn "concat \[execsql {$sql}\] \[db total_changes\]" $res
+  ]
+}
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b);
+  CREATE INDEX t1_b ON t1(b);
+  CREATE TABLE t2(x, y, PRIMARY KEY(x, y)) WITHOUT ROWID;
+  CREATE INDEX t2_y ON t2(y);
+}
+
+
+#--------------------------------------------------------------------------
+# EVIDENCE-OF: R-38914-26427 The total_changes() function returns the
+# number of row changes caused by INSERT, UPDATE or DELETE statements
+# since the current database connection was opened.
+#
+#   1.1.*: different types of I/U/D statements,
+#   1.2.*: trigger programs.
+#
+do_tc_test 1.1.1 {
+  INSERT INTO t1 VALUES(1, 2);
+  INSERT INTO t1 VALUES(3, 4);
+  UPDATE t1 SET a = a+1;
+  DELETE FROM t1;
+} {6}
+do_tc_test 1.1.2 {
+  DELETE FROM t1
+} {6}
+
+do_tc_test 1.1.3 {
+  WITH data(a,b) AS (
+      SELECT 0, 0 UNION ALL SELECT a+1, b+1 FROM data WHERE a<99
+  )
+  INSERT INTO t1 SELECT * FROM data;
+} {106}
+
+do_tc_test 1.1.4 {
+  INSERT INTO t2 SELECT * FROM t1 WHERE a<50;
+  UPDATE t2 SET y=y+1;
+} {206}
+
+do_tc_test 1.1.5 {
+  DELETE FROM t2 WHERE y<=25
+} {231}
+
+do_execsql_test 1.2.1 {
+  DELETE FROM t1;
+  DELETE FROM t2;
+}
+sqlite3 db test.db     ; # To reset total_changes
+do_tc_test 1.2.2 {
+  CREATE TABLE log(detail);
+  CREATE TRIGGER t1_after_insert AFTER INSERT ON t1 BEGIN 
+    INSERT INTO log VALUES('inserted into t1');
+  END;
+
+  CREATE TRIGGER t1_before_delete BEFORE DELETE ON t1 BEGIN 
+    INSERT INTO log VALUES('deleting from t1');
+    INSERT INTO log VALUES('here we go!');
+  END;
+
+  CREATE TRIGGER t1_after_update AFTER UPDATE ON t1 BEGIN 
+    INSERT INTO log VALUES('update');
+    DELETE FROM log;
+  END;
+
+  INSERT INTO t1 VALUES('a', 'b');   -- 1 + 1
+  UPDATE t1 SET b='c';               -- 1 + 1 + 2
+  DELETE FROM t1;                    -- 1 + 1 + 1
+} {9}
+
+#--------------------------------------------------------------------------
+# EVIDENCE-OF: R-61766-15253 Executing any other type of SQL statement
+# does not affect the value returned by sqlite3_total_changes().
+ifcapable altertable {
+  do_tc_test 2.1 {
+    INSERT INTO t1 VALUES(1, 2), (3, 4);
+    INSERT INTO t2 VALUES(1, 2), (3, 4);
+  } {15}
+  do_tc_test 2.2 {
+    SELECT count(*) FROM t1;
+  } {2 15}
+  do_tc_test 2.3 {
+    CREATE TABLE t4(a, b);
+    ALTER TABLE t4 ADD COLUMN c;
+    CREATE INDEX i4 ON t4(c);
+    ALTER TABLE t4 RENAME TO t5;
+    ANALYZE;
+    BEGIN;
+    DROP TABLE t2;
+    ROLLBACK;
+    VACUUM;
+  } {15}
+}
+
+
+#--------------------------------------------------------------------------
+# EVIDENCE-OF: R-36043-10590 Changes made as part of foreign key
+# actions are included in the count, but those made as part of REPLACE
+# constraint resolution are not.
+#
+#   3.1.*: foreign key actions
+#   3.2.*: REPLACE constraints.
+#
+sqlite3 db test.db     ; # To reset total_changes
+do_tc_test 3.1.1 {
+  CREATE TABLE p1(c PRIMARY KEY, d);
+  CREATE TABLE c1(a, b, FOREIGN KEY(a) REFERENCES p1 ON DELETE SET NULL);
+  CREATE TABLE c2(a, b, FOREIGN KEY(a) REFERENCES p1 ON DELETE CASCADE);
+  CREATE TABLE c3(a, b, FOREIGN KEY(a) REFERENCES p1 ON DELETE SET DEFAULT);
+
+  INSERT INTO p1 VALUES(1, 'one');
+  INSERT INTO p1 VALUES(2, 'two');
+  INSERT INTO p1 VALUES(3, 'three');
+  INSERT INTO p1 VALUES(4, 'four');
+
+  INSERT INTO c1 VALUES(1, 'i');
+  INSERT INTO c2 VALUES(2, 'ii');
+  INSERT INTO c3 VALUES(3, 'iii');
+  PRAGMA foreign_keys = ON;
+} {7}
+
+do_tc_test 3.1.2 { DELETE FROM p1 WHERE c=1; } {9}
+do_tc_test 3.1.3 { DELETE FROM p1 WHERE c=2; } {11}
+do_tc_test 3.1.4 { DELETE FROM p1 WHERE c=3; } {13}
+do_tc_test 3.1.5 { DELETE FROM p1 WHERE c=4; } {14}  ; # only 1 this time.
+
+sqlite3 db test.db     ; # To reset total_changes
+do_tc_test 3.1.6 {
+  DROP TABLE c1;
+  DROP TABLE c2;
+  DROP TABLE c3;
+  CREATE TABLE c1(a, b, FOREIGN KEY(a) REFERENCES p1 ON UPDATE SET NULL);
+  CREATE TABLE c2(a, b, FOREIGN KEY(a) REFERENCES p1 ON UPDATE CASCADE);
+  CREATE TABLE c3(a, b, FOREIGN KEY(a) REFERENCES p1 ON UPDATE SET DEFAULT);
+
+  INSERT INTO p1 VALUES(1, 'one');
+  INSERT INTO p1 VALUES(2, 'two');
+  INSERT INTO p1 VALUES(3, 'three');
+  INSERT INTO p1 VALUES(4, 'four');
+
+  INSERT INTO c1 VALUES(1, 'i');
+  INSERT INTO c2 VALUES(2, 'ii');
+  INSERT INTO c3 VALUES(3, 'iii');
+  PRAGMA foreign_keys = ON;
+} {7}
+
+do_tc_test 3.1.7  { UPDATE p1 SET c=c+4 WHERE c=1; } {9}
+do_tc_test 3.1.8  { UPDATE p1 SET c=c+4 WHERE c=2; } {11}
+do_tc_test 3.1.9  { UPDATE p1 SET c=c+4 WHERE c=3; } {13}
+do_tc_test 3.1.10 { UPDATE p1 SET c=c+4 WHERE c=4; } {14}  ; # only 1 this time.
+
+sqlite3 db test.db     ; # To reset total_changes
+do_tc_test 3.2.1 {
+  CREATE TABLE t3(a UNIQUE, b UNIQUE);
+  INSERT INTO t3 VALUES('one', 'one');
+  INSERT INTO t3 VALUES('two', 'two');
+  INSERT OR REPLACE INTO t3 VALUES('one', 'two');
+} {3}
+
+do_tc_test 3.2.2 {
+  INSERT INTO t3 VALUES('three', 'one');
+  UPDATE OR REPLACE t3 SET b='two' WHERE b='one';
+  SELECT * FROM t3;
+} {three two 5}
+
+#--------------------------------------------------------------------------
+# EVIDENCE-OF: R-54872-08741 Changes to a view that are intercepted by
+# INSTEAD OF triggers are not counted.
+#
+sqlite3 db test.db     ; # To reset total_changes
+do_tc_test 4.1 {
+  CREATE TABLE t6(x);
+  CREATE VIEW v1 AS SELECT * FROM t6;
+  CREATE TRIGGER v1_tr1 INSTEAD OF INSERT ON v1 BEGIN
+    SELECT 'no-op';
+  END;
+
+  INSERT INTO v1 VALUES('a');
+  INSERT INTO v1 VALUES('b');
+} {0}
+do_tc_test 4.2 {
+  CREATE TRIGGER v1_tr2 INSTEAD OF INSERT ON v1 BEGIN
+    INSERT INTO t6 VALUES(new.x);
+  END;
+
+  INSERT INTO v1 VALUES('c');
+  INSERT INTO v1 VALUES('d');
+} {2}
+
+
+finish_test
diff --git a/test/e_update.test b/test/e_update.test
new file mode 100644
index 0000000000000000000000000000000000000000..a13b059b3292050e7725317970b3ea8db95072b5
--- /dev/null
+++ b/test/e_update.test
@@ -0,0 +1,605 @@
+# 2010 September 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements tests to verify that the "testable statements" in 
+# the lang_update.html document are correct.
+#
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+#--------------------
+# Test organization:
+#
+#   e_update-1.*: Test statements describing the workings of UPDATE statements.
+#
+#   e_update-2.*: Test the restrictions on the UPDATE statement syntax that
+#                 can be used within triggers.
+#
+#   e_update-3.*: Test the special LIMIT/OFFSET and ORDER BY clauses that can
+#                 be used with UPDATE when SQLite is compiled with
+#                 SQLITE_ENABLE_UPDATE_DELETE_LIMIT.
+#
+
+forcedelete test.db2
+
+do_execsql_test e_update-0.0 {
+  ATTACH 'test.db2' AS aux;
+  CREATE TABLE t1(a, b);
+  CREATE TABLE t2(a, b, c);
+  CREATE TABLE t3(a, b UNIQUE);
+  CREATE TABLE t6(x, y);
+  CREATE INDEX i1 ON t1(a);
+
+  CREATE TEMP TABLE t4(x, y);
+  CREATE TEMP TABLE t6(x, y);
+
+  CREATE TABLE aux.t1(a, b);
+  CREATE TABLE aux.t5(a, b);
+} {}
+
+proc do_update_tests {args} {
+  uplevel do_select_tests $args
+}
+
+# -- syntax diagram update-stmt
+#
+do_update_tests e_update-0 {
+  1    "UPDATE t1 SET a=10" {}
+  2    "UPDATE t1 SET a=10, b=5" {}
+  3    "UPDATE t1 SET a=10 WHERE b=5" {}
+  4    "UPDATE t1 SET b=5,a=10 WHERE 1" {}
+  5    "UPDATE main.t1 SET a=10" {}
+  6    "UPDATE main.t1 SET a=10, b=5" {}
+  7    "UPDATE main.t1 SET a=10 WHERE b=5" {}
+  9    "UPDATE OR ROLLBACK t1 SET a=10" {}
+  10   "UPDATE OR ROLLBACK t1 SET a=10, b=5" {}
+  11   "UPDATE OR ROLLBACK t1 SET a=10 WHERE b=5" {}
+  12   "UPDATE OR ROLLBACK t1 SET b=5,a=10 WHERE 1" {}
+  13   "UPDATE OR ROLLBACK main.t1 SET a=10" {}
+  14   "UPDATE OR ROLLBACK main.t1 SET a=10, b=5" {}
+  15   "UPDATE OR ROLLBACK main.t1 SET a=10 WHERE b=5" {}
+  16   "UPDATE OR ROLLBACK main.t1 SET b=5,a=10 WHERE 1" {}
+  17   "UPDATE OR ABORT t1 SET a=10" {}
+  18   "UPDATE OR ABORT t1 SET a=10, b=5" {}
+  19   "UPDATE OR ABORT t1 SET a=10 WHERE b=5" {}
+  20   "UPDATE OR ABORT t1 SET b=5,a=10 WHERE 1" {}
+  21   "UPDATE OR ABORT main.t1 SET a=10" {}
+  22   "UPDATE OR ABORT main.t1 SET a=10, b=5" {}
+  23   "UPDATE OR ABORT main.t1 SET a=10 WHERE b=5" {}
+  24   "UPDATE OR ABORT main.t1 SET b=5,a=10 WHERE 1" {}
+  25   "UPDATE OR REPLACE t1 SET a=10" {}
+  26   "UPDATE OR REPLACE t1 SET a=10, b=5" {}
+  27   "UPDATE OR REPLACE t1 SET a=10 WHERE b=5" {}
+  28   "UPDATE OR REPLACE t1 SET b=5,a=10 WHERE 1" {}
+  29   "UPDATE OR REPLACE main.t1 SET a=10" {}
+  30   "UPDATE OR REPLACE main.t1 SET a=10, b=5" {}
+  31   "UPDATE OR REPLACE main.t1 SET a=10 WHERE b=5" {}
+  32   "UPDATE OR REPLACE main.t1 SET b=5,a=10 WHERE 1" {}
+  33   "UPDATE OR FAIL t1 SET a=10" {}
+  34   "UPDATE OR FAIL t1 SET a=10, b=5" {}
+  35   "UPDATE OR FAIL t1 SET a=10 WHERE b=5" {}
+  36   "UPDATE OR FAIL t1 SET b=5,a=10 WHERE 1" {}
+  37   "UPDATE OR FAIL main.t1 SET a=10" {}
+  38   "UPDATE OR FAIL main.t1 SET a=10, b=5" {}
+  39   "UPDATE OR FAIL main.t1 SET a=10 WHERE b=5" {}
+  40   "UPDATE OR FAIL main.t1 SET b=5,a=10 WHERE 1" {}
+  41   "UPDATE OR IGNORE t1 SET a=10" {}
+  42   "UPDATE OR IGNORE t1 SET a=10, b=5" {}
+  43   "UPDATE OR IGNORE t1 SET a=10 WHERE b=5" {}
+  44   "UPDATE OR IGNORE t1 SET b=5,a=10 WHERE 1" {}
+  45   "UPDATE OR IGNORE main.t1 SET a=10" {}
+  46   "UPDATE OR IGNORE main.t1 SET a=10, b=5" {}
+  47   "UPDATE OR IGNORE main.t1 SET a=10 WHERE b=5" {}
+  48   "UPDATE OR IGNORE main.t1 SET b=5,a=10 WHERE 1" {}
+}
+
+# EVIDENCE-OF: R-38515-45264 An UPDATE statement is used to modify a
+# subset of the values stored in zero or more rows of the database table
+# identified by the qualified-table-name specified as part of the UPDATE
+# statement.
+#
+#     Test cases e_update-1.1.1.* test the "identified by the
+#     qualified-table-name" part of the statement above. Tests 
+#     e_update-1.1.2.* show that the "zero or more rows" part is 
+#     accurate.
+#
+do_execsql_test e_update-1.1.0 {
+  INSERT INTO main.t1 VALUES(1, 'i');
+  INSERT INTO main.t1 VALUES(2, 'ii');
+  INSERT INTO main.t1 VALUES(3, 'iii');
+
+  INSERT INTO aux.t1 VALUES(1, 'I');
+  INSERT INTO aux.t1 VALUES(2, 'II');
+  INSERT INTO aux.t1 VALUES(3, 'III');
+} {}
+do_update_tests e_update-1.1 {
+  1.1  "UPDATE t1 SET a = a+1; SELECT * FROM t1"             {2 i  3 ii  4 iii}
+  1.2  "UPDATE main.t1 SET a = a+1; SELECT * FROM main.t1"   {3 i  4 ii  5 iii}
+  1.3  "UPDATE aux.t1 SET a = a+1; SELECT * FROM aux.t1"     {2 I  3 II  4 III}
+
+  2.1  "UPDATE t1 SET a = a+1 WHERE a = 1; SELECT * FROM t1" {3 i  4 ii  5 iii}
+  2.2  "UPDATE t1 SET a = a+1 WHERE a = 4; SELECT * FROM t1" {3 i  5 ii  5 iii}
+}
+
+# EVIDENCE-OF: R-55869-30521 If the UPDATE statement does not have a
+# WHERE clause, all rows in the table are modified by the UPDATE.
+#
+do_execsql_test e_update-1.2.0 {
+  DELETE FROM main.t1;
+  INSERT INTO main.t1 VALUES(1, 'i');
+  INSERT INTO main.t1 VALUES(2, 'ii');
+  INSERT INTO main.t1 VALUES(3, 'iii');
+} {}
+do_update_tests e_update-1.2 {
+  1  "UPDATE t1 SET b = 'roman' ; SELECT * FROM t1"
+     {1 roman  2 roman  3 roman}
+
+  2  "UPDATE t1 SET a = 'greek' ; SELECT * FROM t1"
+     {greek roman  greek roman  greek roman}
+}
+
+# EVIDENCE-OF: R-58095-46013 Otherwise, the UPDATE affects only those
+# rows for which the WHERE clause boolean expression is true.
+#
+do_execsql_test e_update-1.3.0 {
+  DELETE FROM main.t1;
+  INSERT INTO main.t1 VALUES(NULL, '');
+  INSERT INTO main.t1 VALUES(1, 'i');
+  INSERT INTO main.t1 VALUES(2, 'ii');
+  INSERT INTO main.t1 VALUES(3, 'iii');
+} {}
+do_update_tests e_update-1.3 {
+  1  "UPDATE t1 SET b = 'roman' WHERE a<2 ; SELECT * FROM t1"
+     {{} {}  1 roman  2 ii  3 iii}
+
+  2  "UPDATE t1 SET b = 'egyptian' WHERE (a-3)/10.0 ; SELECT * FROM t1"
+     {{} {}  1 egyptian  2 egyptian  3 iii}
+
+  3  "UPDATE t1 SET b = 'macedonian' WHERE a; SELECT * FROM t1"
+     {{} {}  1 macedonian  2 macedonian  3 macedonian}
+
+  4  "UPDATE t1 SET b = 'lithuanian' WHERE a IS NULL; SELECT * FROM t1"
+     {{} lithuanian  1 macedonian  2 macedonian  3 macedonian}
+}
+
+# EVIDENCE-OF: R-58129-20729 It is not an error if the WHERE clause does
+# not evaluate to true for any row in the table - this just means that
+# the UPDATE statement affects zero rows.
+#
+do_execsql_test e_update-1.4.0 {
+  DELETE FROM main.t1;
+  INSERT INTO main.t1 VALUES(NULL, '');
+  INSERT INTO main.t1 VALUES(1, 'i');
+  INSERT INTO main.t1 VALUES(2, 'ii');
+  INSERT INTO main.t1 VALUES(3, 'iii');
+} {}
+do_update_tests e_update-1.4 -query {
+  SELECT * FROM t1
+} {
+  1  "UPDATE t1 SET b = 'burmese' WHERE a=5" {{} {}  1 i  2 ii  3 iii}
+
+  2  "UPDATE t1 SET b = 'burmese' WHERE length(b)<1 AND a IS NOT NULL"
+     {{} {}  1 i  2 ii  3 iii}
+
+  3  "UPDATE t1 SET b = 'burmese' WHERE 0" {{} {}  1 i  2 ii  3 iii}
+
+  4  "UPDATE t1 SET b = 'burmese' WHERE (SELECT a FROM t1 WHERE rowid=1)"
+     {{} {}  1 i  2 ii  3 iii}
+}
+
+# EVIDENCE-OF: R-40598-36595 For each affected row, the named columns
+# are set to the values found by evaluating the corresponding scalar
+# expressions.
+#
+# EVIDENCE-OF: R-40472-60438 Columns that do not appear in the list of
+# assignments are left unmodified.
+#
+do_execsql_test e_update-1.5.0 {
+  INSERT INTO t2(rowid, a, b, c) VALUES(1,  3, 1, 4);
+  INSERT INTO t2(rowid, a, b, c) VALUES(2,  1, 5, 9);
+  INSERT INTO t2(rowid, a, b, c) VALUES(3,  2, 6, 5);
+} {}
+do_update_tests e_update-1.5 -query {
+  SELECT * FROM t2
+} {
+  1   "UPDATE t2 SET c = 1+1 WHERE a=2" 
+      {3 1 4   1 5 9   2 6 2}
+
+  2   "UPDATE t2 SET b = 4/2, c=CAST((0.4*5) AS INTEGER) WHERE a<3"
+      {3 1 4   1 2 2   2 2 2}
+
+  3   "UPDATE t2 SET a = 1"
+      {1 1 4   1 2 2   1 2 2}
+
+  4   "UPDATE t2 SET b = (SELECT count(*)+2 FROM t2), c = 24/3+1 WHERE rowid=2"
+      {1 1 4   1 5 9   1 2 2}
+
+  5   "UPDATE t2 SET a = 3 WHERE c = 4"
+      {3 1 4   1 5 9   1 2 2}
+
+  6   "UPDATE t2 SET a = b WHERE rowid>2"
+      {3 1 4   1 5 9   2 2 2}
+
+  6   "UPDATE t2 SET b=6, c=5 WHERE a=b AND b=c"
+      {3 1 4   1 5 9   2 6 5}
+}
+
+# EVIDENCE-OF: R-34751-18293 If a single column-name appears more than
+# once in the list of assignment expressions, all but the rightmost
+# occurrence is ignored.
+#
+do_update_tests e_update-1.6 -query {
+  SELECT * FROM t2
+} {
+  1   "UPDATE t2 SET c=5, c=6, c=7 WHERE rowid=1" {3 1 7   1 5 9   2 6 5}
+  2   "UPDATE t2 SET c=7, c=6, c=5 WHERE rowid=1" {3 1 5   1 5 9   2 6 5}
+  3   "UPDATE t2 SET c=5, b=6, c=7 WHERE rowid=1" {3 6 7   1 5 9   2 6 5}
+}
+
+# EVIDENCE-OF: R-36239-04077 The scalar expressions may refer to columns
+# of the row being updated.
+#
+# EVIDENCE-OF: R-04558-24451 In this case all scalar expressions are
+# evaluated before any assignments are made.
+#
+do_execsql_test e_update-1.7.0 {
+  DELETE FROM t2;
+  INSERT INTO t2(rowid, a, b, c) VALUES(1,  3, 1, 4);
+  INSERT INTO t2(rowid, a, b, c) VALUES(2,  1, 5, 9);
+  INSERT INTO t2(rowid, a, b, c) VALUES(3,  2, 6, 5);
+} {}
+do_update_tests e_update-1.7 -query {
+  SELECT * FROM t2
+} {
+  1   "UPDATE t2 SET a=b+c"          {5 1 4     14 5 9   11  6 5}
+  2   "UPDATE t2 SET a=b, b=a"       {1 5 4     5 14 9    6 11 5}
+  3   "UPDATE t2 SET a=c||c, c=NULL" {44 5 {}  99 14 {}  55 11 {}}
+}
+
+# EVIDENCE-OF: R-28518-13457 The optional "OR action" conflict clause
+# that follows the UPDATE keyword allows the user to nominate a specific
+# constraint conflict resolution algorithm to use during this one UPDATE
+# command.
+#
+do_execsql_test e_update-1.8.0 {
+  DELETE FROM t3;
+  INSERT INTO t3 VALUES(1, 'one');
+  INSERT INTO t3 VALUES(2, 'two');
+  INSERT INTO t3 VALUES(3, 'three');
+  INSERT INTO t3 VALUES(4, 'four');
+} {}
+foreach {tn sql error ac data } {
+  1  "UPDATE t3 SET b='one' WHERE a=3" 
+     {UNIQUE constraint failed: t3.b} 1 {1 one 2 two 3 three 4 four}
+
+  2  "UPDATE OR REPLACE t3 SET b='one' WHERE a=3" 
+     {} 1 {2 two 3 one 4 four}
+
+  3  "UPDATE OR FAIL t3 SET b='three'"
+     {UNIQUE constraint failed: t3.b} 1 {2 three 3 one 4 four}
+
+  4  "UPDATE OR IGNORE t3 SET b='three' WHERE a=3" 
+     {} 1 {2 three 3 one 4 four}
+
+  5  "UPDATE OR ABORT t3 SET b='three' WHERE a=3" 
+     {UNIQUE constraint failed: t3.b} 1 {2 three 3 one 4 four}
+
+  6  "BEGIN" {} 0 {2 three 3 one 4 four}
+
+  7  "UPDATE t3 SET b='three' WHERE a=3" 
+     {UNIQUE constraint failed: t3.b} 0 {2 three 3 one 4 four}
+
+  8  "UPDATE OR ABORT t3 SET b='three' WHERE a=3" 
+     {UNIQUE constraint failed: t3.b} 0 {2 three 3 one 4 four}
+
+  9  "UPDATE OR FAIL t3 SET b='two'"
+     {UNIQUE constraint failed: t3.b} 0 {2 two 3 one 4 four}
+
+  10 "UPDATE OR IGNORE t3 SET b='four' WHERE a=3"
+     {} 0 {2 two 3 one 4 four}
+
+  11 "UPDATE OR REPLACE t3 SET b='four' WHERE a=3"
+     {} 0 {2 two 3 four}
+
+  12 "UPDATE OR ROLLBACK t3 SET b='four'"
+     {UNIQUE constraint failed: t3.b} 1 {2 three 3 one 4 four}
+} {
+  do_catchsql_test e_update-1.8.$tn.1 $sql [list [expr {$error!=""}] $error]
+  do_execsql_test  e_update-1.8.$tn.2 {SELECT * FROM t3} [list {*}$data]
+  do_test          e_update-1.8.$tn.3 {sqlite3_get_autocommit db} $ac
+}
+
+
+
+# EVIDENCE-OF: R-12123-54095 The table-name specified as part of an
+# UPDATE statement within a trigger body must be unqualified.
+#
+# EVIDENCE-OF: R-43190-62442 In other words, the schema-name. prefix on
+# the table name of the UPDATE is not allowed within triggers.
+#
+do_update_tests e_update-2.1 -error {
+  qualified table names are not allowed on INSERT, UPDATE, and DELETE statements within triggers
+} {
+  1 {
+      CREATE TRIGGER tr1 AFTER INSERT ON t1 BEGIN
+        UPDATE main.t2 SET a=1, b=2, c=3;
+      END;
+  } {}
+
+  2 {
+      CREATE TRIGGER tr1 BEFORE UPDATE ON t2 BEGIN
+        UPDATE aux.t1 SET a=1, b=2;
+      END;
+  } {}
+
+  3 {
+      CREATE TRIGGER tr1 AFTER DELETE ON t4 BEGIN
+        UPDATE main.t1 SET a=1, b=2;
+      END;
+  } {}
+}
+
+# EVIDENCE-OF: R-06085-13761 Unless the table to which the trigger is
+# attached is in the TEMP database, the table being updated by the
+# trigger program must reside in the same database as it.
+#
+do_update_tests e_update-2.2 -error {
+  no such table: %s
+} {
+  1 {
+      CREATE TRIGGER tr1 AFTER INSERT ON t1 BEGIN
+        UPDATE t4 SET x=x+1;
+      END;
+      INSERT INTO t1 VALUES(1, 2);
+  } "main.t4"
+
+  2 {
+      CREATE TRIGGER aux.tr1 AFTER INSERT ON t5 BEGIN
+        UPDATE t4 SET x=x+1;
+      END;
+      INSERT INTO t5 VALUES(1, 2);
+  } "aux.t4"
+}
+do_execsql_test e_update-2.2.X {
+  DROP TRIGGER tr1;
+  DROP TRIGGER aux.tr1;
+} {}
+
+# EVIDENCE-OF: R-29512-54644 If the table to which the trigger is
+# attached is in the TEMP database, then the unqualified name of the
+# table being updated is resolved in the same way as it is for a
+# top-level statement (by searching first the TEMP database, then the
+# main database, then any other databases in the order they were
+# attached).
+#
+do_execsql_test e_update-2.3.0 {
+  SELECT 'main', tbl_name FROM main.sqlite_master WHERE type = 'table';
+  SELECT 'temp', tbl_name FROM sqlite_temp_master WHERE type = 'table';
+  SELECT 'aux', tbl_name FROM aux.sqlite_master WHERE type = 'table';
+} [list {*}{
+    main t1
+    main t2
+    main t3
+    main t6
+    temp t4
+    temp t6
+    aux  t1
+    aux  t5
+}]
+do_execsql_test e_update-2.3.1 {
+  DELETE FROM main.t6;
+  DELETE FROM temp.t6;
+  INSERT INTO main.t6 VALUES(1, 2);
+  INSERT INTO temp.t6 VALUES(1, 2);
+
+  CREATE TRIGGER temp.tr1 AFTER INSERT ON t4 BEGIN
+    UPDATE t6 SET x=x+1;
+  END;
+
+  INSERT INTO t4 VALUES(1, 2);
+  SELECT * FROM main.t6;
+  SELECT * FROM temp.t6;
+} {1 2 2 2}
+do_execsql_test e_update-2.3.2 {
+  DELETE FROM main.t1;
+  DELETE FROM aux.t1;
+  INSERT INTO main.t1 VALUES(1, 2);
+  INSERT INTO aux.t1 VALUES(1, 2);
+
+  CREATE TRIGGER temp.tr2 AFTER DELETE ON t4 BEGIN
+    UPDATE t1 SET a=a+1;
+  END;
+
+  DELETE FROM t4;
+  SELECT * FROM main.t1;
+  SELECT * FROM aux.t1;
+} {2 2 1 2}
+do_execsql_test e_update-2.3.3 {
+  DELETE FROM aux.t5;
+  INSERT INTO aux.t5 VALUES(1, 2);
+
+  INSERT INTO t4 VALUES('x', 'y');
+  CREATE TRIGGER temp.tr3 AFTER UPDATE ON t4 BEGIN
+    UPDATE t5 SET a=a+1;
+  END;
+
+  UPDATE t4 SET x=10;
+  SELECT * FROM aux.t5;
+} {2 2}
+
+# EVIDENCE-OF: R-19619-42762 The INDEXED BY and NOT INDEXED clauses are
+# not allowed on UPDATE statements within triggers.
+#
+do_update_tests e_update-2.4 -error {
+  the %s %s clause is not allowed on UPDATE or DELETE statements within triggers
+} {
+  1 {
+      CREATE TRIGGER tr1 AFTER INSERT ON t2 BEGIN
+        UPDATE t1 INDEXED BY i1 SET a=a+1;
+      END;
+  } {INDEXED BY}
+
+  2 {
+      CREATE TRIGGER tr1 AFTER INSERT ON t2 BEGIN
+        UPDATE t1 NOT INDEXED SET a=a+1;
+      END;
+  } {NOT INDEXED}
+}
+
+ifcapable update_delete_limit {
+
+# EVIDENCE-OF: R-57359-59558 The LIMIT and ORDER BY clauses for UPDATE
+# are unsupported within triggers, regardless of the compilation options
+# used to build SQLite.
+#
+do_update_tests e_update-2.5 -error {
+  near "%s": syntax error
+} {
+  1 {
+      CREATE TRIGGER tr1 AFTER INSERT ON t2 BEGIN
+        UPDATE t1 SET a=a+1 LIMIT 10;
+      END;
+  } {LIMIT}
+
+  2 {
+      CREATE TRIGGER tr1 AFTER INSERT ON t2 BEGIN
+        UPDATE t1 SET a=a+1 ORDER BY a LIMIT 10;
+      END;
+  } {ORDER}
+
+  3 {
+      CREATE TRIGGER tr1 AFTER INSERT ON t2 BEGIN
+        UPDATE t1 SET a=a+1 ORDER BY a LIMIT 10 OFFSET 2;
+      END;
+  } {ORDER}
+
+  4 {
+      CREATE TRIGGER tr1 AFTER INSERT ON t2 BEGIN
+        UPDATE t1 SET a=a+1 LIMIT 10 OFFSET 2;
+      END;
+  } {LIMIT}
+}
+
+# EVIDENCE-OF: R-59581-44104 If SQLite is built with the
+# SQLITE_ENABLE_UPDATE_DELETE_LIMIT compile-time option then the syntax
+# of the UPDATE statement is extended with optional ORDER BY and LIMIT
+# clauses
+#
+# -- syntax diagram update-stmt-limited
+#
+do_update_tests e_update-3.0 {
+  1   "UPDATE t1 SET a=b LIMIT 5"                                    {}
+  2   "UPDATE t1 SET a=b LIMIT 5-1 OFFSET 2+2"                       {}
+  3   "UPDATE t1 SET a=b LIMIT 2+2, 16/4"                            {}
+  4   "UPDATE t1 SET a=b ORDER BY a LIMIT 5"                         {}
+  5   "UPDATE t1 SET a=b ORDER BY a LIMIT 5-1 OFFSET 2+2"            {}
+  6   "UPDATE t1 SET a=b ORDER BY a LIMIT 2+2, 16/4"                 {}
+  7   "UPDATE t1 SET a=b WHERE a>2 LIMIT 5"                          {}
+  8   "UPDATE t1 SET a=b WHERE a>2 LIMIT 5-1 OFFSET 2+2"             {}
+  9   "UPDATE t1 SET a=b WHERE a>2 LIMIT 2+2, 16/4"                  {}
+  10  "UPDATE t1 SET a=b WHERE a>2 ORDER BY a LIMIT 5"               {}
+  11  "UPDATE t1 SET a=b WHERE a>2 ORDER BY a LIMIT 5-1 OFFSET 2+2"  {}
+  12  "UPDATE t1 SET a=b WHERE a>2 ORDER BY a LIMIT 2+2, 16/4"       {}
+}
+
+do_execsql_test e_update-3.1.0 {
+  CREATE TABLE t7(q, r, s);
+  INSERT INTO t7 VALUES(1, 'one',   'X');
+  INSERT INTO t7 VALUES(2, 'two',   'X');
+  INSERT INTO t7 VALUES(3, 'three', 'X');
+  INSERT INTO t7 VALUES(4, 'four',  'X');
+  INSERT INTO t7 VALUES(5, 'five',  'X');
+  INSERT INTO t7 VALUES(6, 'six',   'X');
+  INSERT INTO t7 VALUES(7, 'seven', 'X');
+  INSERT INTO t7 VALUES(8, 'eight', 'X');
+  INSERT INTO t7 VALUES(9, 'nine',  'X');
+  INSERT INTO t7 VALUES(10, 'ten',  'X');
+} {}
+
+# EVIDENCE-OF: R-58862-44169 If an UPDATE statement has a LIMIT clause,
+# the maximum number of rows that will be updated is found by evaluating
+# the accompanying expression and casting it to an integer value.
+#
+do_update_tests e_update-3.1 -query { SELECT s FROM t7 } {
+  1   "UPDATE t7 SET s = q LIMIT 5"            {1 2 3 4 5 X X X X X}
+  2   "UPDATE t7 SET s = r WHERE q>2 LIMIT 4"  {1 2 three four five six X X X X}
+  3   "UPDATE t7 SET s = q LIMIT 0"            {1 2 three four five six X X X X}
+}
+
+# EVIDENCE-OF: R-63582-45120 A negative value is interpreted as "no limit".
+#
+do_update_tests e_update-3.2 -query { SELECT s FROM t7 } {
+  1   "UPDATE t7 SET s = q LIMIT -1"              {1 2 3 4 5 6 7 8 9 10}
+  2   "UPDATE t7 SET s = r WHERE q>4 LIMIT -1"  
+      {1 2 3 4 five six seven eight nine ten}
+  3   "UPDATE t7 SET s = 'X' LIMIT -1"            {X X X X X X X X X X}
+}
+
+# EVIDENCE-OF: R-18628-11938 If the LIMIT expression evaluates to
+# non-negative value N and the UPDATE statement has an ORDER BY clause,
+# then all rows that would be updated in the absence of the LIMIT clause
+# are sorted according to the ORDER BY and the first N updated.
+#
+do_update_tests e_update-3.3 -query { SELECT s FROM t7 } {
+  1   "UPDATE t7 SET s = q ORDER BY r LIMIT 3"      {X X X 4 5 X X 8 X X}
+  2   "UPDATE t7 SET s = r ORDER BY r DESC LIMIT 2" {X two three 4 5 X X 8 X X}
+  3   "UPDATE t7 SET s = q ORDER BY q DESC LIMIT 5" {X two three 4 5 6 7 8 9 10}
+
+  X   "UPDATE t7 SET s = 'X'"                       {X X X X X X X X X X}
+}
+
+# EVIDENCE-OF: R-30955-38324 If the UPDATE statement also has an OFFSET
+# clause, then it is similarly evaluated and cast to an integer value.
+# If the OFFSET expression evaluates to a non-negative value M, then the
+# first M rows are skipped and the following N rows updated instead.
+#
+do_update_tests e_update-3.3 -query { SELECT s FROM t7 } {
+  1   "UPDATE t7 SET s = q ORDER BY q LIMIT 3 OFFSET 2"  {X X 3 4 5 X X X X X}
+  2   "UPDATE t7 SET s = q ORDER BY q DESC LIMIT 2, 3 "  {X X 3 4 5 6 7 8 X X}
+
+  X   "UPDATE t7 SET s = 'X'"                       {X X X X X X X X X X}
+}
+
+# EVIDENCE-OF: R-19486-35828 If the UPDATE statement has no ORDER BY
+# clause, then all rows that would be updated in the absence of the
+# LIMIT clause are assembled in an arbitrary order before applying the
+# LIMIT and OFFSET clauses to determine which are actually updated.
+#
+#     In practice, "arbitrary order" is rowid order. This is also tested
+#     by e_update-3.2.* above.
+#
+do_update_tests e_update-3.4 -query { SELECT s FROM t7 } {
+  1   "UPDATE t7 SET s = q LIMIT 4, 2"        {X X X X 5 6 X X X X}
+  2   "UPDATE t7 SET s = q LIMIT 2 OFFSET 7"  {X X X X 5 6 X 8 9 X}
+}
+
+# EVIDENCE-OF: R-10927-26133 The ORDER BY clause on an UPDATE statement
+# is used only to determine which rows fall within the LIMIT. The order
+# in which rows are modified is arbitrary and is not influenced by the
+# ORDER BY clause.
+#
+do_execsql_test e_update-3.5.0 {
+  CREATE TABLE t8(x);
+  CREATE TRIGGER tr7 BEFORE UPDATE ON t7 BEGIN
+    INSERT INTO t8 VALUES(old.q);
+  END;
+} {}
+do_update_tests e_update-3.5 -query { SELECT x FROM t8 ; DELETE FROM t8 } {
+  1   "UPDATE t7 SET s = q ORDER BY r LIMIT -1"        {1 2 3 4 5 6 7 8 9 10}
+  2   "UPDATE t7 SET s = q ORDER BY r ASC LIMIT -1"    {1 2 3 4 5 6 7 8 9 10}
+  3   "UPDATE t7 SET s = q ORDER BY r DESC LIMIT -1"   {1 2 3 4 5 6 7 8 9 10}
+  4   "UPDATE t7 SET s = q ORDER BY q DESC LIMIT 5"    {6 7 8 9 10}
+}
+
+
+} ;# ifcapable update_delete_limit
+ 
+finish_test
diff --git a/test/e_uri.test b/test/e_uri.test
new file mode 100644
index 0000000000000000000000000000000000000000..b1fb47989cad5b9fc70af1208422dc3b4ccd1eaa
--- /dev/null
+++ b/test/e_uri.test
@@ -0,0 +1,465 @@
+# 2011 May 06
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix e_uri
+do_not_use_codec
+db close
+
+proc parse_uri {uri} {
+  testvfs tvfs2
+  testvfs tvfs 
+  tvfs filter xOpen
+  tvfs script parse_uri_open_cb
+
+  set ::uri_open [list]
+  set DB [sqlite3_open_v2 $uri {
+    SQLITE_OPEN_READWRITE SQLITE_OPEN_CREATE SQLITE_OPEN_WAL
+    SQLITE_OPEN_EXRESCODE
+  } tvfs]
+  set fileName [sqlite3_db_filename $DB main]
+  sqlite3_close $DB
+  forcedelete $fileName
+  tvfs delete
+  tvfs2 delete
+
+  set ::uri_open
+}
+proc parse_uri_open_cb {method file arglist} {
+  set ::uri_open [list $file $arglist]
+}
+
+proc open_uri_error {uri} {
+  set flags {SQLITE_OPEN_READWRITE SQLITE_OPEN_CREATE SQLITE_OPEN_WAL}
+  set DB [sqlite3_open_v2 $uri $flags ""]
+  set e [sqlite3_errmsg $DB]
+  sqlite3_close $DB
+  set e
+}
+
+# EVIDENCE-OF: R-35840-33204 If URI filename interpretation is enabled,
+# and the filename argument begins with "file:", then the filename is
+# interpreted as a URI.
+#
+# EVIDENCE-OF: R-27632-24205 URI filename interpretation is enabled if
+# the SQLITE_OPEN_URI flag is set in the third argument to
+# sqlite3_open_v2(), or if it has been enabled globally using the
+# SQLITE_CONFIG_URI option with the sqlite3_config() method or by the
+# SQLITE_USE_URI compile-time option.
+#
+if {$tcl_platform(platform) == "unix"} {
+  set flags [list SQLITE_OPEN_READWRITE SQLITE_OPEN_CREATE]
+
+  # Tests with SQLITE_CONFIG_URI configured to false. URI intepretation is
+  # only enabled if the SQLITE_OPEN_URI flag is specified.
+  sqlite3_shutdown
+  sqlite3_config_uri 0
+  do_test 1.1 {
+    forcedelete file:test.db test.db
+    set DB [sqlite3_open_v2 file:test.db [concat $flags SQLITE_OPEN_URI] ""]
+    list [file exists file:test.db] [file exists test.db]
+  } {0 1}
+  do_test 1.2 {
+    forcedelete file:test.db2 test.db2
+    set STMT [sqlite3_prepare $DB "ATTACH 'file:test.db2' AS aux" -1 dummy]
+    sqlite3_step $STMT
+    sqlite3_finalize $STMT
+    list [file exists file:test.db2] [file exists test.db2]
+  } {0 1}
+  sqlite3_close $DB
+  do_test 1.3 {
+    forcedelete file:test.db test.db
+    set DB [sqlite3_open_v2 file:test.db [concat $flags] ""]
+    list [file exists file:test.db] [file exists test.db]
+  } {1 0}
+  do_test 1.4 {
+    forcedelete file:test.db2 test.db2
+    set STMT [sqlite3_prepare $DB "ATTACH 'file:test.db2' AS aux" -1 dummy]
+    sqlite3_step $STMT
+    sqlite3_finalize $STMT
+    list [file exists file:test.db2] [file exists test.db2]
+  } {1 0}
+  sqlite3_close $DB
+
+  # Tests with SQLITE_CONFIG_URI configured to true. URI intepretation is
+  # enabled with or without SQLITE_OPEN_URI.
+  #
+  sqlite3_shutdown
+  sqlite3_config_uri 1
+  do_test 1.5 {
+    forcedelete file:test.db test.db
+    set DB [sqlite3_open_v2 file:test.db [concat $flags SQLITE_OPEN_URI] ""]
+    list [file exists file:test.db] [file exists test.db]
+  } {0 1}
+  do_test 1.6 {
+    forcedelete file:test.db2 test.db2
+    set STMT [sqlite3_prepare $DB "ATTACH 'file:test.db2' AS aux" -1 dummy]
+    sqlite3_step $STMT
+    sqlite3_finalize $STMT
+    list [file exists file:test.db2] [file exists test.db2]
+  } {0 1}
+  sqlite3_close $DB
+  do_test 1.7 {
+    forcedelete file:test.db test.db
+    set DB [sqlite3_open_v2 file:test.db [concat $flags] ""]
+    list [file exists file:test.db] [file exists test.db]
+  } {0 1}
+  do_test 1.8 {
+    forcedelete file:test.db2 test.db2
+    set STMT [sqlite3_prepare $DB "ATTACH 'file:test.db2' AS aux" -1 dummy]
+    sqlite3_step $STMT
+    sqlite3_finalize $STMT
+    list [file exists file:test.db2] [file exists test.db2]
+  } {0 1}
+  sqlite3_close $DB
+}
+
+# ensure uri processing enabled for the rest of the tests
+sqlite3_shutdown
+sqlite3_config_uri 1
+
+# EVIDENCE-OF: R-06842-00595 If the URI contains an authority, then it
+# must be either an empty string or the string "localhost".
+#
+# EVIDENCE-OF: R-17482-00398 If the authority is not an empty string or
+# "localhost", an error is returned to the caller.
+#
+if {$tcl_platform(platform) == "unix"} {
+  set flags [list SQLITE_OPEN_READWRITE SQLITE_OPEN_CREATE SQLITE_OPEN_URI]
+  foreach {tn uri error} "
+    1  {file://localhost[test_pwd /]test.db}   {not an error}
+    2  {file://[test_pwd /]test.db}            {not an error}
+    3  {file://x[test_pwd /]test.db}           {invalid uri authority: x}
+    4  {file://invalid[test_pwd /]test.db}     {invalid uri authority: invalid}
+  " {
+    do_test 2.$tn {
+      set DB [sqlite3_open_v2 $uri $flags ""]
+      set e [sqlite3_errmsg $DB]
+      sqlite3_close $DB
+      set e
+    } $error
+  }
+}
+
+# EVIDENCE-OF: R-45981-25528 The fragment component of a URI, if
+# present, is ignored.
+#
+#   It is difficult to test that something is ignored correctly. So these tests
+#   just show that adding a fragment does not interfere with the pathname or
+#   parameters passed through to the VFS xOpen() methods.
+#
+foreach {tn uri parse} "
+  1    {file:test.db#abc}      {[test_pwd / {}]test.db {}}
+  2    {file:test.db?a=b#abc}  {[test_pwd / {}]test.db {a b}}
+  3    {file:test.db?a=b#?c=d} {[test_pwd / {}]test.db {a b}}
+" {
+  do_filepath_test 3.$tn { parse_uri $uri } $parse
+}
+
+# EVIDENCE-OF: R-62557-09390 SQLite uses the path component of the URI
+# as the name of the disk file which contains the database.
+#
+# EVIDENCE-OF: R-28659-11035 If the path begins with a '/' character,
+# then it is interpreted as an absolute path.
+#
+# EVIDENCE-OF: R-46234-61323 If the path does not begin with a '/'
+# (meaning that the authority section is omitted from the URI) then the
+# path is interpreted as a relative path.
+#
+foreach {tn uri parse} "
+  1    {file:test.db}             {[test_pwd / {}]test.db {}}
+  2    {file:/test.db}            {/test.db {}}
+  3    {file:///test.db}          {/test.db {}}
+  4    {file://localhost/test.db} {/test.db {}}
+  5    {file:/a/b/c/test.db}      {/a/b/c/test.db {}}
+" {
+  do_filepath_test 4.$tn { parse_uri $uri } $parse
+}
+
+# EVIDENCE-OF: R-01612-30877 The "vfs" parameter may be used to specify
+# the name of a VFS object that provides the operating system interface
+# that should be used to access the database file on disk.
+#
+#   The above is tested by cases 1.* below.
+#
+# EVIDENCE-OF: R-52293-58497 If this option is set to an empty string
+# the default VFS object is used.
+#
+#   The above is tested by cases 2.* below.
+#
+# EVIDENCE-OF: R-31855-18665 If sqlite3_open_v2() is used and the vfs
+# option is present, then the VFS specified by the option takes
+# precedence over the value passed as the fourth parameter to
+# sqlite3_open_v2().
+#
+#   The above is tested by cases 3.* below.
+#
+proc vfs_open_cb {name args} {
+  set ::vfs $name
+}
+foreach {name default} {vfs1 0 vfs2 0 vfs3 1} {
+  testvfs $name -default $default
+  $name filter xOpen
+  $name script [list vfs_open_cb $name]
+}
+foreach {tn uri defvfs vfs} {
+  1.1    "file:test.db?vfs=vfs1"    ""    vfs1
+  1.2    "file:test.db?vfs=vfs2"    ""    vfs2
+
+  2.1    "file:test.db"             vfs1  vfs1
+  2.2    "file:test.db?vfs="        vfs1  vfs3
+
+  3.1    "file:test.db?vfs=vfs1"    vfs2  vfs1
+  3.2    "file:test.db?vfs=vfs2"    vfs1  vfs2
+  3.3    "file:test.db?xvfs=vfs1"   vfs2  vfs2
+  3.4    "file:test.db?xvfs=vfs2"   vfs1  vfs1
+} {
+  do_test 5.$tn {
+    set flags [list SQLITE_OPEN_READWRITE SQLITE_OPEN_CREATE SQLITE_OPEN_URI]
+    sqlite3_close [
+      sqlite3_open_v2 $uri $flags $defvfs
+    ]
+    set ::vfs
+  } $vfs
+}
+vfs1 delete
+vfs2 delete
+vfs3 delete
+
+# EVIDENCE-OF: R-48365-36308 Specifying an unknown VFS is an error.
+#
+set flags [list SQLITE_OPEN_READWRITE SQLITE_OPEN_CREATE SQLITE_OPEN_URI]
+do_test 6.1 {
+  set DB [sqlite3_open_v2 file:test.db?vfs=nosuchvfs $flags ""]
+  set errmsg [sqlite3_errmsg $DB]
+  sqlite3_close $DB
+  set errmsg
+} {no such vfs: nosuchvfs}
+
+
+# EVIDENCE-OF: R-44013-13102 The mode parameter may be set to either
+# "ro", "rw", "rwc", or "memory". Attempting to set it to any other
+# value is an error
+#
+sqlite3 db test.db
+db close
+foreach {tn uri error} "
+  1    {file:test.db?mode=ro}    {not an error}
+  2    {file:test.db?mode=rw}    {not an error}
+  3    {file:test.db?mode=rwc}   {not an error}
+  4    {file:test.db?mode=Ro}    {no such access mode: Ro}
+  5    {file:test.db?mode=Rw}    {no such access mode: Rw}
+  6    {file:test.db?mode=Rwc}   {no such access mode: Rwc}
+  7    {file:test.db?mode=memory} {not an error}
+  8    {file:test.db?mode=MEMORY} {no such access mode: MEMORY}
+" {
+  do_test 7.$tn { open_uri_error $uri } $error
+}
+
+
+# EVIDENCE-OF: R-43036-46756 If "ro" is specified, then the database is
+# opened for read-only access, just as if the SQLITE_OPEN_READONLY flag
+# had been set in the third argument to sqlite3_open_v2().
+#
+# EVIDENCE-OF: R-40137-26050 If the mode option is set to "rw", then the
+# database is opened for read-write (but not create) access, as if
+# SQLITE_OPEN_READWRITE (but not SQLITE_OPEN_CREATE) had been set.
+#
+# EVIDENCE-OF: R-26845-32976 Value "rwc" is equivalent to setting both
+# SQLITE_OPEN_READWRITE and SQLITE_OPEN_CREATE.
+#
+foreach {tn uri read write create} {
+  1    {file:test.db?mode=ro}     1 0 0
+  2    {file:test.db?mode=rw}     1 1 0
+  3    {file:test.db?mode=rwc}    1 1 1
+} {
+  set RES(c,0) {1 {unable to open database file}}
+  set RES(c,1) {0 {}}
+  set RES(w,0) {1 {attempt to write a readonly database}}
+  set RES(w,1) {0 {}}
+  set RES(r,0) {1 {this never happens}}
+  set RES(r,1) {0 {a b}}
+
+  # Test CREATE access:
+  forcedelete test.db
+  do_test 8.$tn.c { list [catch { sqlite3 db $uri } msg] $msg } $RES(c,$create)
+  catch { db close }
+
+  sqlite3 db test.db
+  db eval { CREATE TABLE t1(a, b) ; INSERT INTO t1 VALUES('a', 'b') ;}
+  db close
+  
+  # Test READ access:
+  do_test 8.$tn.r { 
+    sqlite3 db $uri
+    catchsql { SELECT * FROM t1 }
+  } $RES(r,$read)
+  
+  # Test WRITE access:
+  do_test 8.$tn.w { 
+    sqlite3 db $uri
+    catchsql { INSERT INTO t1 VALUES(1, 2) }
+  } $RES(w,$write)
+
+  catch {db close}
+}
+
+# EVIDENCE-OF: R-20590-08726 It is an error to specify a value for the
+# mode parameter that is less restrictive than that specified by the
+# flags passed in the third parameter to sqlite3_open_v2().
+#
+forcedelete test.db
+sqlite3 db test.db
+db close
+foreach {tn uri flags error} {
+  1   {file:test.db?mode=ro}   ro    {not an error}
+  2   {file:test.db?mode=ro}   rw    {not an error}
+  3   {file:test.db?mode=ro}   rwc   {not an error}
+
+  4   {file:test.db?mode=rw}   ro    {access mode not allowed: rw}
+  5   {file:test.db?mode=rw}   rw    {not an error}
+  6   {file:test.db?mode=rw}   rwc   {not an error}
+
+  7   {file:test.db?mode=rwc}  ro    {access mode not allowed: rwc}
+  8   {file:test.db?mode=rwc}  rw    {access mode not allowed: rwc}
+  9   {file:test.db?mode=rwc}  rwc   {not an error}
+} {
+  set f(ro)  [list SQLITE_OPEN_READONLY SQLITE_OPEN_URI]
+  set f(rw)  [list SQLITE_OPEN_READWRITE SQLITE_OPEN_URI]
+  set f(rwc) [list SQLITE_OPEN_READWRITE SQLITE_OPEN_CREATE SQLITE_OPEN_URI]
+
+  set DB [sqlite3_open_v2 $uri $f($flags) ""]
+  set e [sqlite3_errmsg $DB]
+  sqlite3_close $DB
+
+  do_test 9.$tn { set e } $error
+}
+
+# EVIDENCE-OF: R-23182-54295 The cache parameter may be set to either
+# "shared" or "private".
+sqlite3 db test.db
+db close
+foreach {tn uri error} "
+  1    {file:test.db?cache=private}    {not an error}
+  2    {file:test.db?cache=shared}     {not an error}
+  3    {file:test.db?cache=yes}        {no such cache mode: yes}
+  4    {file:test.db?cache=}           {no such cache mode: }
+" {
+  do_test 10.$tn { open_uri_error $uri } $error
+}
+
+ifcapable shared_cache {
+# EVIDENCE-OF: R-23027-03515 Setting it to "shared" is equivalent to
+# setting the SQLITE_OPEN_SHAREDCACHE bit in the flags argument passed
+# to sqlite3_open_v2().
+#
+# EVIDENCE-OF: R-49793-28525 Setting the cache parameter to "private" is
+# equivalent to setting the SQLITE_OPEN_PRIVATECACHE bit.
+#
+# EVIDENCE-OF: R-31773-41793 If sqlite3_open_v2() is used and the
+# "cache" parameter is present in a URI filename, its value overrides
+# any behavior requested by setting SQLITE_OPEN_PRIVATECACHE or
+# SQLITE_OPEN_SHAREDCACHE flag.
+#
+set orig [sqlite3_enable_shared_cache]
+foreach {tn uri flags shared_default isshared} {
+  1.1   "file:test.db"                  ""         0    0
+  1.2   "file:test.db"                  ""         1    1
+  1.3   "file:test.db"                  private    0    0
+  1.4   "file:test.db"                  private    1    0
+  1.5   "file:test.db"                  shared     0    1
+  1.6   "file:test.db"                  shared     1    1
+
+  2.1   "file:test.db?cache=private"    ""         0    0
+  2.2   "file:test.db?cache=private"    ""         1    0
+  2.3   "file:test.db?cache=private"    private    0    0
+  2.4   "file:test.db?cache=private"    private    1    0
+  2.5   "file:test.db?cache=private"    shared     0    0
+  2.6   "file:test.db?cache=private"    shared     1    0
+
+  3.1   "file:test.db?cache=shared"     ""         0    1
+  3.2   "file:test.db?cache=shared"     ""         1    1
+  3.3   "file:test.db?cache=shared"     private    0    1
+  3.4   "file:test.db?cache=shared"     private    1    1
+  3.5   "file:test.db?cache=shared"     shared     0    1
+  3.6   "file:test.db?cache=shared"     shared     1    1
+} {
+  forcedelete test.db
+  sqlite3_enable_shared_cache 1
+  sqlite3 db test.db
+  sqlite3_enable_shared_cache 0
+
+  db eval {
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES('ok');
+  }
+
+  unset -nocomplain f
+  set f()        {SQLITE_OPEN_READWRITE SQLITE_OPEN_CREATE SQLITE_OPEN_URI}
+  set f(shared)  [concat $f() SQLITE_OPEN_SHAREDCACHE]
+  set f(private) [concat $f() SQLITE_OPEN_PRIVATECACHE]
+
+  sqlite3_enable_shared_cache $shared_default
+  set DB [sqlite3_open_v2 $uri $f($flags) ""]
+
+  set STMT [sqlite3_prepare $DB "SELECT * FROM t1" -1 dummy]
+
+  db eval {
+    BEGIN;
+      INSERT INTO t1 VALUES('ko');
+  }
+
+  sqlite3_step $STMT
+  sqlite3_finalize $STMT
+
+  set RES(0) {not an error}
+  set RES(1) {database table is locked: t1}
+
+  do_test 11.$tn { sqlite3_errmsg $DB } $RES($isshared)
+
+  sqlite3_close $DB
+  db close
+}
+sqlite3_enable_shared_cache $orig
+}  ;#  End ifcapable shared_chache
+
+# EVIDENCE-OF: R-63472-46769 Specifying an unknown parameter in the
+# query component of a URI is not an error.
+#
+do_filepath_test 12.1 {
+  parse_uri file://localhost/test.db?an=unknown&parameter=is&ok=
+} {/test.db {an unknown parameter is ok {}}}
+do_filepath_test 12.2 {
+  parse_uri file://localhost/test.db?an&unknown&parameter&is&ok
+} {/test.db {an {} unknown {} parameter {} is {} ok {}}}
+
+# EVIDENCE-OF: R-27458-04043 URI hexadecimal escape sequences (%HH) are
+# supported within the path and query components of a URI.
+#
+# EVIDENCE-OF: R-52765-50368 Before the path or query components of a
+# URI filename are interpreted, they are encoded using UTF-8 and all
+# hexadecimal escape sequences replaced by a single byte containing the
+# corresponding octet.
+#
+#   The second of the two statements above is tested by creating a
+#   multi-byte utf-8 character using a sequence of %HH escapes.
+#
+foreach {tn uri parse} "
+  1  {file:/test.%64%62}                             {/test.db {}}
+  2  {file:/test.db?%68%65%6c%6c%6f=%77%6f%72%6c%64} {/test.db {hello world}}
+  3  {file:/%C3%BF.db}                               {/\xFF.db {}}
+" {
+  do_filepath_test 13.$tn { parse_uri $uri } $parse
+}
+
+finish_test
diff --git a/test/e_vacuum.test b/test/e_vacuum.test
new file mode 100644
index 0000000000000000000000000000000000000000..63bf7c125f050d908c44a41ddce8be1b6edd6f44
--- /dev/null
+++ b/test/e_vacuum.test
@@ -0,0 +1,347 @@
+# 2010 September 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements tests to verify that the "testable statements" in 
+# the lang_vacuum.html document are correct.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+sqlite3_test_control_pending_byte 0x1000000
+
+proc create_db {{sql ""}} {
+  catch { db close }
+  forcedelete test.db
+  sqlite3 db test.db
+
+  db transaction {
+    execsql { PRAGMA page_size = 1024; }
+    execsql $sql
+    execsql {
+      CREATE TABLE t1(a PRIMARY KEY, b UNIQUE);
+      INSERT INTO t1 VALUES(1, randomblob(400));
+      INSERT INTO t1 SELECT a+1,  randomblob(400) FROM t1;
+      INSERT INTO t1 SELECT a+2,  randomblob(400) FROM t1;
+      INSERT INTO t1 SELECT a+4,  randomblob(400) FROM t1;
+      INSERT INTO t1 SELECT a+8,  randomblob(400) FROM t1;
+      INSERT INTO t1 SELECT a+16, randomblob(400) FROM t1;
+      INSERT INTO t1 SELECT a+32, randomblob(400) FROM t1;
+      INSERT INTO t1 SELECT a+64, randomblob(400) FROM t1;
+
+      CREATE TABLE t2(a PRIMARY KEY, b UNIQUE);
+      INSERT INTO t2 SELECT * FROM t1;
+    }
+  }
+
+  return [expr {[file size test.db] / 1024}]
+}
+
+# This proc returns the number of contiguous blocks of pages that make up
+# the table or index named by the only argument. For example, if the table
+# occupies database pages 3, 4, 8 and 9, then this command returns 2 (there
+# are 2 fragments - one consisting of pages 3 and 4, the other of fragments
+# 8 and 9).
+#
+proc fragment_count {name} {
+  execsql { CREATE VIRTUAL TABLE temp.stat USING dbstat }
+  set nFrag 1
+  db eval {SELECT pageno FROM stat WHERE name = 't1' ORDER BY pageno} {
+    if {[info exists prevpageno] && $prevpageno != $pageno-1} {
+      incr nFrag
+    }
+    set prevpageno $pageno
+  }
+  execsql { DROP TABLE temp.stat }
+  set nFrag
+}
+
+
+# -- syntax diagram vacuum-stmt
+#
+do_execsql_test e_vacuum-0.1 { VACUUM } {}
+
+# EVIDENCE-OF: R-51469-36013 Unless SQLite is running in
+# "auto_vacuum=FULL" mode, when a large amount of data is deleted from
+# the database file it leaves behind empty space, or "free" database
+# pages.
+#
+# EVIDENCE-OF: R-60541-63059 Running VACUUM to rebuild the database
+# reclaims this space and reduces the size of the database file.
+#
+foreach {tn avmode sz} {
+  1 none        7 
+  2 full        8 
+  3 incremental 8
+} {
+  set nPage [create_db "PRAGMA auto_vacuum = $avmode"]
+
+  do_execsql_test e_vacuum-1.1.$tn.1 {
+    DELETE FROM t1;
+    DELETE FROM t2;
+  } {}
+
+  if {$avmode == "full"} {
+    # This branch tests the "unless ... auto_vacuum=FULL" in the requirement
+    # above. If auto_vacuum is set to FULL, then no empty space is left in
+    # the database file.
+    do_execsql_test e_vacuum-1.1.$tn.2 {PRAGMA freelist_count} 0
+  } else {
+    set freelist [expr {$nPage - $sz}]
+    if {$avmode == "incremental"} { 
+      # The page size is 1024 bytes. Therefore, assuming the database contains
+      # somewhere between 207 and 411 pages (it does), there are 2 pointer-map
+      # pages.
+      incr freelist -2
+    }
+    do_execsql_test e_vacuum-1.1.$tn.3 {PRAGMA freelist_count} $freelist
+    do_execsql_test e_vacuum-1.1.$tn.4 {VACUUM} {}
+  }
+
+  do_test e_vacuum-1.1.$tn.5 { expr {[file size test.db] / 1024} } $sz
+}
+
+# EVIDENCE-OF: R-50943-18433 Frequent inserts, updates, and deletes can
+# cause the database file to become fragmented - where data for a single
+# table or index is scattered around the database file.
+#
+# EVIDENCE-OF: R-05791-54928 Running VACUUM ensures that each table and
+# index is largely stored contiguously within the database file.
+#
+#   e_vacuum-1.2.1 - Perform many INSERT, UPDATE and DELETE ops on table t1.
+#   e_vacuum-1.2.2 - Verify that t1 and its indexes are now quite fragmented.
+#   e_vacuum-1.2.3 - Run VACUUM.
+#   e_vacuum-1.2.4 - Verify that t1 and its indexes are now much 
+#                    less fragmented.
+#
+ifcapable vtab&&compound {
+  create_db 
+  register_dbstat_vtab db
+  do_execsql_test e_vacuum-1.2.1 {
+    DELETE FROM t1 WHERE a%2;
+    INSERT INTO t1 SELECT b, a FROM t2 WHERE a%2;
+    UPDATE t1 SET b=randomblob(600) WHERE (a%2)==0;
+  } {}
+  
+  do_test e_vacuum-1.2.2.1 { expr [fragment_count t1]>100 } 1
+  do_test e_vacuum-1.2.2.2 { expr [fragment_count sqlite_autoindex_t1_1]>100 } 1
+  do_test e_vacuum-1.2.2.3 { expr [fragment_count sqlite_autoindex_t1_2]>100 } 1
+  
+  do_execsql_test e_vacuum-1.2.3 { VACUUM } {}
+  
+  # In practice, the tables and indexes each end up stored as two fragments -
+  # one containing the root page and another containing all other pages.
+  #
+  do_test e_vacuum-1.2.4.1 { fragment_count t1 }                    2
+  do_test e_vacuum-1.2.4.2 { fragment_count sqlite_autoindex_t1_1 } 2
+  do_test e_vacuum-1.2.4.3 { fragment_count sqlite_autoindex_t1_2 } 2
+}
+
+# EVIDENCE-OF: R-20474-44465 Normally, the database page_size and
+# whether or not the database supports auto_vacuum must be configured
+# before the database file is actually created.
+#
+do_test e_vacuum-1.3.1.1 {
+  create_db "PRAGMA page_size = 1024 ; PRAGMA auto_vacuum = FULL"
+  execsql { PRAGMA page_size ; PRAGMA auto_vacuum }
+} {1024 1}
+do_test e_vacuum-1.3.1.2 {
+  execsql { PRAGMA page_size = 2048 }
+  execsql { PRAGMA auto_vacuum = NONE }
+  execsql { PRAGMA page_size ; PRAGMA auto_vacuum }
+} {1024 1}
+
+if {![nonzero_reserved_bytes]} {
+  # EVIDENCE-OF: R-08570-19916 However, when not in write-ahead log mode,
+  # the page_size and/or auto_vacuum properties of an existing database
+  # may be changed by using the page_size and/or pragma auto_vacuum
+  # pragmas and then immediately VACUUMing the database.
+  #
+  do_test e_vacuum-1.3.2.1 {
+    execsql { PRAGMA journal_mode = delete }
+    execsql { PRAGMA page_size = 2048 }
+    execsql { PRAGMA auto_vacuum = NONE }
+    execsql VACUUM
+    execsql { PRAGMA page_size ; PRAGMA auto_vacuum }
+  } {2048 0}
+  
+  # EVIDENCE-OF: R-48521-51450 When in write-ahead log mode, only the
+  # auto_vacuum support property can be changed using VACUUM.
+  #
+  if {[wal_is_capable]} {
+    do_test e_vacuum-1.3.3.1 {
+      execsql { PRAGMA journal_mode = wal }
+      execsql { PRAGMA page_size ; PRAGMA auto_vacuum }
+    } {2048 0}
+    do_test e_vacuum-1.3.3.2 {
+      execsql { PRAGMA page_size = 1024 }
+      execsql { PRAGMA auto_vacuum = FULL }
+      execsql VACUUM
+      execsql { PRAGMA page_size ; PRAGMA auto_vacuum }
+    } {2048 1}
+  }
+}
+  
+# EVIDENCE-OF: R-40347-36128 By default, VACUUM operates on the main
+# database.
+forcedelete test.db2
+create_db { PRAGMA auto_vacuum = NONE }
+do_execsql_test e_vacuum-2.1.1 {
+  ATTACH 'test.db2' AS aux;
+  PRAGMA aux.page_size = 1024;
+  CREATE TABLE aux.t3 AS SELECT * FROM t1;
+  DELETE FROM t3;
+} {}
+set original_size [file size test.db2]
+
+# Vacuuming the main database does not affect aux
+do_execsql_test e_vacuum-2.1.3 { VACUUM } {}
+do_test e_vacuum-2.1.6 { expr {[file size test.db2]==$::original_size} } 1
+
+# EVIDENCE-OF: R-36598-60500 Attached databases can be vacuumed by
+# appending the appropriate schema-name to the VACUUM statement.
+do_execsql_test e_vacuum-2.1.7 { VACUUM aux; } {}
+do_test e_vacuum-2.1.8 { expr {[file size test.db2]<$::original_size} } 1
+
+# EVIDENCE-OF: R-17495-17419 The VACUUM command may change the ROWIDs of
+# entries in any tables that do not have an explicit INTEGER PRIMARY
+# KEY.
+#
+#   Tests e_vacuum-3.1.1 - 3.1.2 demonstrate that rowids can change when
+#   a database is VACUUMed. Tests e_vacuum-3.1.3 - 3.1.4 show that adding
+#   an INTEGER PRIMARY KEY column to a table stops this from happening.
+#
+#   Update 2019-01-07:  Rowids are now preserved by VACUUM.
+#
+do_execsql_test e_vacuum-3.1.1 {
+  CREATE TABLE t4(x);
+  INSERT INTO t4(x) VALUES('x');
+  INSERT INTO t4(x) VALUES('y');
+  INSERT INTO t4(x) VALUES('z');
+  DELETE FROM t4 WHERE x = 'y';
+  SELECT rowid, x FROM t4;
+} {1 x 3 z}
+do_execsql_test e_vacuum-3.1.2 {
+  VACUUM;
+  SELECT rowid, x FROM t4;
+} {1 x 2 z}
+
+# Rowids are preserved if an INTEGER PRIMARY KEY is used
+do_execsql_test e_vacuum-3.1.3 {
+  CREATE TABLE t5(x, y INTEGER PRIMARY KEY);
+  INSERT INTO t5(x) VALUES('x');
+  INSERT INTO t5(x) VALUES('y');
+  INSERT INTO t5(x) VALUES('z');
+  DELETE FROM t5 WHERE x = 'y';
+  SELECT rowid, x FROM t5;
+} {1 x 3 z}
+do_execsql_test e_vacuum-3.1.4 {
+  VACUUM;
+  SELECT rowid, x FROM t5;
+} {1 x 3 z}
+
+# Rowid is preserved for VACUUM INTO
+do_execsql_test e_vacuum-3.1.5 {
+  DROP TABLE t5;
+  CREATE TABLE t5(x);
+  INSERT INTO t5(x) VALUES('x');
+  INSERT INTO t5(x) VALUES('y');
+  INSERT INTO t5(x) VALUES('z');
+  DELETE FROM t5 WHERE x = 'y';
+  SELECT rowid, x FROM t5;
+} {1 x 3 z}
+forcedelete test2.db
+do_execsql_test e_vacuum-3.1.6 {
+  VACUUM INTO 'test2.db';
+  ATTACH 'test2.db' AS aux1;
+  SELECT rowid, x FROM aux1.t5;
+  DETACH aux1;
+} {1 x 3 z}
+
+# Rowids are not renumbered if the table being vacuumed
+# has indexes.
+do_execsql_test e_vacuum-3.1.7 {
+  DROP TABLE t5;
+  CREATE TABLE t5(x,y,z);
+  INSERT INTO t5(x) VALUES('x');
+  INSERT INTO t5(x) VALUES('y');
+  INSERT INTO t5(x) VALUES('z');
+  UPDATE t5 SET y=x, z=random();
+  DELETE FROM t5 WHERE x = 'y';
+  CREATE INDEX t5x ON t5(x);
+  CREATE UNIQUE INDEX t5y ON t5(y);
+  CREATE INDEX t5zxy ON t5(z,x,y);
+  SELECT rowid, x FROM t5;
+} {1 x 3 z}
+do_execsql_test e_vacuum-3.1.8 {
+  VACUUM;
+  SELECT rowid, x FROM t5;
+} {1 x 3 z}
+
+# EVIDENCE-OF: R-12218-18073 A VACUUM will fail if there is an open
+# transaction on the database connection that is attempting to run the
+# VACUUM.
+#
+do_execsql_test  e_vacuum-3.2.1.1 { BEGIN } {}
+do_catchsql_test e_vacuum-3.2.1.2 { 
+  VACUUM 
+} {1 {cannot VACUUM from within a transaction}}
+do_execsql_test  e_vacuum-3.2.1.3 { COMMIT } {}
+do_execsql_test  e_vacuum-3.2.1.4 { VACUUM } {}
+do_execsql_test  e_vacuum-3.2.1.5 { SAVEPOINT x } {}
+do_catchsql_test e_vacuum-3.2.1.6 { 
+  VACUUM 
+} {1 {cannot VACUUM from within a transaction}}
+do_execsql_test  e_vacuum-3.2.1.7 { COMMIT } {}
+do_execsql_test  e_vacuum-3.2.1.8 { VACUUM } {}
+
+create_db
+do_test e_vacuum-3.2.2.1 {
+  set res ""
+  db eval { SELECT a FROM t1 } {
+    if {$a == 10} { set res [catchsql VACUUM] }
+  }
+  set res
+} {1 {cannot VACUUM - SQL statements in progress}}
+
+
+# EVIDENCE-OF: R-55138-13241 An alternative to using the VACUUM command
+# to reclaim space after data has been deleted is auto-vacuum mode,
+# enabled using the auto_vacuum pragma.
+#
+do_test e_vacuum-3.3.1 {
+  create_db { PRAGMA auto_vacuum = FULL }
+  execsql { PRAGMA auto_vacuum }
+} {1}
+
+# EVIDENCE-OF: R-64844-34873 When auto_vacuum is enabled for a database
+# free pages may be reclaimed after deleting data, causing the file to
+# shrink, without rebuilding the entire database using VACUUM.
+#
+do_test e_vacuum-3.3.2.1 {
+  create_db { PRAGMA auto_vacuum = FULL }
+  execsql {
+    DELETE FROM t1;
+    DELETE FROM t2;
+  }
+  expr {[file size test.db] / 1024}
+} {8}
+do_test e_vacuum-3.3.2.2 {
+  create_db { PRAGMA auto_vacuum = INCREMENTAL }
+  execsql {
+    DELETE FROM t1;
+    DELETE FROM t2;
+    PRAGMA incremental_vacuum;
+  }
+  expr {[file size test.db] / 1024}
+} {8}
+
+finish_test
diff --git a/test/e_wal.test b/test/e_wal.test
new file mode 100644
index 0000000000000000000000000000000000000000..c9c5e9643fcf8a2483f4a929b6d5fa66afb397ab
--- /dev/null
+++ b/test/e_wal.test
@@ -0,0 +1,231 @@
+# 2011 May 06
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix e_wal
+
+db close
+forcedelete test.db-shm 
+testvfs oldvfs -iversion 1
+
+
+# EVIDENCE-OF: R-58297-14483 WAL databases can be created, read, and
+# written even if shared memory is unavailable as long as the
+# locking_mode is set to EXCLUSIVE before the first attempted access.
+#
+# EVIDENCE-OF: R-00449-33772 This feature allows WAL databases to be
+# created, read, and written by legacy VFSes that lack the "version 2"
+# shared-memory methods xShmMap, xShmLock, xShmBarrier, and xShmUnmap on
+# the sqlite3_io_methods object.
+#
+# 1.1: "create" tests.
+# 1.2: "read" tests.
+# 1.3: "write" tests.
+#
+# All three done with VFS "oldvfs", which has iVersion==1 and so does
+# not support shared memory.
+# 
+sqlite3 db test.db -vfs oldvfs
+do_execsql_test 1.1.1 {
+  PRAGMA journal_mode = WAL;
+} {delete}
+do_execsql_test 1.1.2 {
+  PRAGMA locking_mode = EXCLUSIVE;
+  PRAGMA journal_mode = WAL;
+} {exclusive wal}
+do_execsql_test 1.1.3 {
+  CREATE TABLE t1(x, y);
+  INSERT INTO t1 VALUES(1, 2);
+} {}
+do_test 1.1.4 {
+  list [file exists test.db-shm] [file exists test.db-wal]
+} {0 1}
+
+do_test 1.2.1 {
+  db close
+  sqlite3 db test.db -vfs oldvfs
+  catchsql { SELECT * FROM t1 }
+} {1 {unable to open database file}}
+do_test 1.2.2 {
+  execsql { PRAGMA locking_mode = EXCLUSIVE }
+  execsql { SELECT * FROM t1 }
+} {1 2}
+do_test 1.2.3 {
+  list [file exists test.db-shm] [file exists test.db-wal]
+} {0 1}
+
+do_test 1.3.1 {
+  db close
+  sqlite3 db test.db -vfs oldvfs
+  catchsql { INSERT INTO t1 VALUES(3, 4) }
+} {1 {unable to open database file}}
+do_test 1.3.2 {
+  execsql { PRAGMA locking_mode = EXCLUSIVE }
+  execsql { INSERT INTO t1 VALUES(3, 4) }
+  execsql { SELECT * FROM t1 }
+} {1 2 3 4}
+do_test 1.3.3 {
+  list [file exists test.db-shm] [file exists test.db-wal]
+} {0 1}
+
+# EVIDENCE-OF: R-31969-57825 If EXCLUSIVE locking mode is set prior to
+# the first WAL-mode database access, then SQLite never attempts to call
+# any of the shared-memory methods and hence no shared-memory wal-index
+# is ever created.
+#
+db close
+sqlite3 db test.db
+do_execsql_test 2.1.1 {
+  PRAGMA locking_mode = EXCLUSIVE;
+  SELECT * FROM t1;
+} {exclusive 1 2 3 4}
+do_test 2.1.2 {
+  list [file exists test.db-shm] [file exists test.db-wal]
+} {0 1}
+
+# EVIDENCE-OF: R-36328-16367 In that case, the database connection
+# remains in EXCLUSIVE mode as long as the journal mode is WAL; attempts
+# to change the locking mode using "PRAGMA locking_mode=NORMAL;" are
+# no-ops.
+#
+do_execsql_test 2.2.1 {
+  PRAGMA locking_mode = NORMAL;
+  SELECT * FROM t1;
+} {exclusive 1 2 3 4}
+do_test 2.2.2 {
+  sqlite3 db2 test.db
+  catchsql {SELECT * FROM t1} db2
+} {1 {database is locked}}
+db2 close
+
+# EVIDENCE-OF: R-63522-46088 The only way to change out of EXCLUSIVE
+# locking mode is to first change out of WAL journal mode.
+#
+do_execsql_test 2.3.1 {
+  PRAGMA journal_mode = DELETE;
+  SELECT * FROM t1;
+} {delete 1 2 3 4}
+do_test 2.3.2 {
+  sqlite3 db2 test.db
+  catchsql {SELECT * FROM t1} db2
+} {1 {database is locked}}
+do_execsql_test 2.3.3 {
+  PRAGMA locking_mode = NORMAL;
+  SELECT * FROM t1;
+} {normal 1 2 3 4}
+do_test 2.3.4 {
+  sqlite3 db2 test.db
+  catchsql {SELECT * FROM t1} db2
+} {0 {1 2 3 4}}
+db2 close
+db close
+
+
+# EVIDENCE-OF: R-57239-11845 If NORMAL locking mode is in effect for the
+# first WAL-mode database access, then the shared-memory wal-index is
+# created.
+#
+do_test 3.0 {
+  sqlite3 db test.db
+  execsql { PRAGMA journal_mode = WAL }
+  db close
+} {}
+do_test 3.1 {
+  sqlite3 db test.db
+  execsql { SELECT * FROM t1 }
+  list [file exists test.db-shm] [file exists test.db-wal]
+} {1 1}
+
+# EVIDENCE-OF: R-13779-07711 As long as exactly one connection is using
+# a shared-memory wal-index, the locking mode can be changed freely
+# between NORMAL and EXCLUSIVE.
+#
+do_execsql_test 3.2.1 {
+  PRAGMA locking_mode = EXCLUSIVE;
+  PRAGMA locking_mode = NORMAL;
+  PRAGMA locking_mode = EXCLUSIVE;
+  INSERT INTO t1 VALUES(5, 6);
+} {exclusive normal exclusive}
+do_test 3.2.2 {
+  sqlite3 db2 test.db
+  catchsql { SELECT * FROM t1 } db2
+} {1 {database is locked}}
+
+# EVIDENCE-OF: R-10993-11647 It is only when the shared-memory wal-index
+# is omitted, when the locking mode is EXCLUSIVE prior to the first
+# WAL-mode database access, that the locking mode is stuck in EXCLUSIVE.
+#
+do_execsql_test 3.2.3 {
+  PRAGMA locking_mode = NORMAL;
+  SELECT * FROM t1;
+} {normal 1 2 3 4 5 6}
+do_test 3.2.4 {
+  catchsql { SELECT * FROM t1 } db2
+} {0 {1 2 3 4 5 6}}
+
+do_catchsql_test 3.2.5 {
+  PRAGMA locking_mode = EXCLUSIVE;
+  INSERT INTO t1 VALUES(7, 8);
+} {1 {database is locked}}
+
+db2 close
+
+# EVIDENCE-OF: R-46197-42811 This means that the underlying VFS must
+# support the "version 2" shared-memory.
+#
+# EVIDENCE-OF: R-55316-21772 If the VFS does not support shared-memory
+# methods, then the attempt to open a database that is already in WAL
+# mode, or the attempt convert a database into WAL mode, will fail.
+#
+db close
+do_test 3.4.1 {
+  sqlite3 db test.db -vfs oldvfs
+  catchsql { SELECT * FROM t1 }
+} {1 {unable to open database file}}
+db close
+do_test 3.4.2 {
+  forcedelete test.db2
+  sqlite3 db test.db2 -vfs oldvfs
+  catchsql { PRAGMA journal_mode = WAL }
+} {0 delete}
+db close
+
+
+# EVIDENCE-OF: R-45540-25505 To prevent older versions of SQLite (prior
+# to version 3.7.0, 2010-07-22) from trying to recover a WAL-mode
+# database (and making matters worse) the database file format version
+# numbers (bytes 18 and 19 in the database header) are increased from 1
+# to 2 in WAL mode.
+#
+reset_db
+do_execsql_test 4.1.1 { CREATE TABLE t1(x, y) }
+do_test 4.1.2 { hexio_read test.db 18 2 } {0101}
+do_execsql_test 4.1.3 { PRAGMA journal_mode = wAL } {wal}
+do_test 4.1.4 { hexio_read test.db 18 2 } {0202}
+
+
+# EVIDENCE-OF: R-02535-05811 One can explicitly change out of WAL mode
+# using a pragma such as this: PRAGMA journal_mode=DELETE;
+#
+do_execsql_test 4.2.1 { INSERT INTO t1 VALUES(1, 1); } {}
+do_test 4.2.2 { file exists test.db-wal } {1}
+do_execsql_test 4.2.3 { PRAGMA journal_mode = delete } {delete}
+do_test 4.2.4 { file exists test.db-wal } {0}
+
+# EVIDENCE-OF: R-60175-02388 Deliberately changing out of WAL mode
+# changes the database file format version numbers back to 1 so that
+# older versions of SQLite can once again access the database file.
+#
+do_test 4.3 { hexio_read test.db 18 2 } {0101}
+
+finish_test
diff --git a/test/e_walauto.test b/test/e_walauto.test
new file mode 100644
index 0000000000000000000000000000000000000000..7665b1bf735f96ba70a0af31d9c43d819b11902b
--- /dev/null
+++ b/test/e_walauto.test
@@ -0,0 +1,214 @@
+# 2014 December 04
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/wal_common.tcl
+set testprefix e_walauto
+
+# Do not run this test on OpenBSD, as it depends on read() and mmap both
+# accessing the same coherent view of the "test.db-shm" file. This doesn't
+# work on OpenBSD.
+#
+if {$tcl_platform(os) == "OpenBSD"} {
+  finish_test
+  return
+}
+
+# This module uses hard-coded offsets which do not work if the reserved_bytes
+# value is nonzero.
+if {[nonzero_reserved_bytes]} {finish_test; return;}
+
+
+proc read_nbackfill {} {
+  seek $::shmfd 96
+  binary scan [read $::shmfd 4] n nBackfill
+  set nBackfill
+}
+proc read_mxframe {} {
+  seek $::shmfd 16
+  binary scan [read $::shmfd 4] n mxFrame
+  set mxFrame
+}
+
+# Assuming that the main db for database handle
+#
+proc do_autocommit_threshold_test {tn value} {
+
+  set nBackfillSaved [read_nbackfill]
+  while {1} {
+    db eval { INSERT INTO t1 VALUES(randomblob(100), randomblob(100)) }
+    if {[read_mxframe] >= $value} break
+  }
+  
+  set nBackfillNew [read_nbackfill]
+  uplevel [list do_test $tn "expr $nBackfillNew > $nBackfillSaved" 1]
+}
+
+# EVIDENCE-OF: R-30135-06439 The wal_autocheckpoint pragma can be used
+# to invoke this interface from SQL.
+#
+#   All tests in this file are run twice - once using the
+#   sqlite3_wal_autocheckpoint() API, and once using "PRAGMA
+#   wal_autocheckpoint".
+#
+foreach {tn code} {
+  1 {
+    proc autocheckpoint {db value} {
+      uplevel [list $db eval "PRAGMA wal_autocheckpoint = $value"]
+    }
+  }
+
+  2 {
+    proc autocheckpoint {db value} {
+      uplevel [list sqlite3_wal_autocheckpoint $db $value]
+      return $value
+    }
+  }
+} {
+
+  eval $code
+
+  reset_db
+  execsql { PRAGMA auto_vacuum = 0 }
+  do_execsql_test 1.$tn.0 { PRAGMA journal_mode = WAL } {wal}
+  do_execsql_test 1.$tn.1 { CREATE TABLE t1(a, b) }
+  set shmfd [open "test.db-shm" rb]
+
+  # EVIDENCE-OF: R-41531-51083 Every new database connection defaults to
+  # having the auto-checkpoint enabled with a threshold of 1000 or
+  # SQLITE_DEFAULT_WAL_AUTOCHECKPOINT pages.
+  #
+  do_autocommit_threshold_test 1.$tn.2 1000
+  db eval { INSERT INTO t1 VALUES(randomblob(100), randomblob(100)) }
+  do_autocommit_threshold_test 1.$tn.3 1000
+
+  # EVIDENCE-OF: R-38128-34102 The sqlite3_wal_autocheckpoint(D,N) is a
+  # wrapper around sqlite3_wal_hook() that causes any database on database
+  # connection D to automatically checkpoint after committing a
+  # transaction if there are N or more frames in the write-ahead log file.
+  #
+  do_test 1.$tn.4 {
+    db eval { INSERT INTO t1 VALUES(randomblob(100), randomblob(100)) }
+    autocheckpoint db 100
+  } {100}
+  do_autocommit_threshold_test 1.$tn.5 100
+
+  do_test 1.$tn.6 {
+    db eval { INSERT INTO t1 VALUES(randomblob(100), randomblob(100)) }
+    autocheckpoint db 500
+  } {500}
+  do_autocommit_threshold_test 1.$tn.7 500
+
+  # EVIDENCE-OF: R-26993-43540 Passing zero or a negative value as the
+  # nFrame parameter disables automatic checkpoints entirely.
+  #
+  do_test 1.$tn.7 {
+    autocheckpoint db 0    ;# Set to zero
+    for {set i 0} {$i < 10000} {incr i} {
+      db eval { INSERT INTO t1 VALUES(randomblob(100), randomblob(100)) }
+    }
+    expr {[file size test.db-wal] > (5 * 1024 * 1024)}
+  } 1
+  do_test 1.$tn.8 {
+    sqlite3_wal_checkpoint_v2 db truncate
+    file size test.db-wal
+  } 0
+  do_test 1.$tn.9 {
+    autocheckpoint db -4    ;# Set to a negative value
+    for {set i 0} {$i < 10000} {incr i} {
+      db eval { INSERT INTO t1 VALUES(randomblob(100), randomblob(100)) }
+    }
+    expr {[file size test.db-wal] > (5 * 1024 * 1024)}
+  } 1
+
+  # EVIDENCE-OF: R-10203-42688 The callback registered by this function
+  # replaces any existing callback registered using sqlite3_wal_hook().
+  #
+  set ::wal_hook_callback 0
+  proc wal_hook_callback {args} { incr ::wal_hook_callback ; return 0 }
+  do_test 1.$tn.10.1 {
+    db wal_hook wal_hook_callback
+    db eval { INSERT INTO t1 VALUES(randomblob(100), randomblob(100)) }
+    db eval { INSERT INTO t1 VALUES(randomblob(100), randomblob(100)) }
+    set ::wal_hook_callback
+  } 2
+  do_test 1.$tn.10.2 {
+    autocheckpoint db 100
+    db eval { INSERT INTO t1 VALUES(randomblob(100), randomblob(100)) }
+    db eval { INSERT INTO t1 VALUES(randomblob(100), randomblob(100)) }
+    set ::wal_hook_callback
+  } 2
+
+  # EVIDENCE-OF: R-17497-43474 Likewise, registering a callback using
+  # sqlite3_wal_hook() disables the automatic checkpoint mechanism
+  # configured by this function.
+  do_test 1.$tn.11.1 {
+    sqlite3_wal_checkpoint_v2 db truncate
+    file size test.db-wal
+  } 0
+  do_test 1.$tn.11.2 {
+    autocheckpoint db 100 
+    for {set i 0} {$i < 1000} {incr i} {
+      db eval { INSERT INTO t1 VALUES(randomblob(100), randomblob(100)) }
+    }
+    expr {[file size test.db-wal] < (1 * 1024 * 1024)}
+  } 1
+  do_test 1.$tn.11.3 {
+    db wal_hook wal_hook_callback
+    for {set i 0} {$i < 1000} {incr i} {
+      db eval { INSERT INTO t1 VALUES(randomblob(100), randomblob(100)) }
+    }
+    expr {[file size test.db-wal] < (1 * 1024 * 1024)}
+  } 0
+
+  # EVIDENCE-OF: R-33080-59193 Checkpoints initiated by this mechanism 
+  # are PASSIVE.
+  #
+  set ::busy_callback_count 0
+  proc busy_callback {args} {
+    incr ::busy_callback_count
+    return 0
+  }
+  do_test 1.$tn.12.1 {
+    sqlite3_wal_checkpoint_v2 db truncate
+    autocheckpoint db 100 
+    db busy busy_callback
+    db eval { INSERT INTO t1 VALUES(randomblob(100), randomblob(100)) }
+    db eval { INSERT INTO t1 VALUES(randomblob(100), randomblob(100)) }
+  } {}
+  do_test 1.$tn.12.2 {
+    sqlite3 db2 test.db
+    db2 eval { BEGIN; SELECT * FROM t1 LIMIT 10; }
+    read_nbackfill
+  } {0}
+  do_test 1.$tn.12.3 {
+    for {set i 0} {$i < 1000} {incr i} {
+      db eval { INSERT INTO t1 VALUES(randomblob(100), randomblob(100)) }
+    }
+    read_nbackfill
+  } {2}
+  do_test 1.$tn.12.4 {
+    set ::busy_callback_count
+  } {0}
+  db2 close
+
+  do_test 1.$tn.12.5 {
+    db eval { INSERT INTO t1 VALUES(randomblob(100), randomblob(100)) }
+    read_nbackfill
+  } {1559}
+
+  db close
+  close $shmfd
+}
+
+finish_test
diff --git a/test/e_walckpt.test b/test/e_walckpt.test
new file mode 100644
index 0000000000000000000000000000000000000000..3b1f3b015a6a8ee48d22f73b2128e6c8d6ccb86a
--- /dev/null
+++ b/test/e_walckpt.test
@@ -0,0 +1,753 @@
+# 2014 December 04
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+source $testdir/wal_common.tcl
+set testprefix e_walckpt
+
+# The following two commands are used to determine if any of the files
+# "test.db", "test.db2" and "test.db3" are modified by a test case.
+#
+# The [save_db_hashes] command saves a hash of the current contents of
+# all three files in global variables. The [compare_db_hashes] compares
+# the current contents with the saved hashes and returns a list of the
+# files that have changed.
+#
+proc save_db_hashes {} {
+  global H
+  foreach f {test.db test.db2 test.db3} {
+    set H($f) 0
+    catch { set H($f) [md5file $f] }
+  }
+}
+proc compare_db_hashes {} {
+  global H
+  set ret [list]
+  foreach f {test.db test.db2 test.db3} {
+    set expect 0
+    catch { set expect [md5file $f] }
+    if {$H($f) != $expect} { lappend ret $f }
+  }
+  set ret
+}
+
+#-------------------------------------------------------------------------
+# All calls to the [sqlite3_wal_checkpoint_v2] command made within this
+# file use this wrapper. It's sole purpose is to throw an error if the
+# following requirement is violated:
+#
+# EVIDENCE-OF: R-60567-47780 Unless it returns SQLITE_MISUSE, the
+# sqlite3_wal_checkpoint_v2() interface sets the error information that
+# is queried by sqlite3_errcode() and sqlite3_errmsg().
+#
+proc wal_checkpoint_v2 {db args} {
+  set rc [catch {
+    uplevel sqlite3_wal_checkpoint_v2 $db $args
+  } msg]
+
+  set errcode "SQLITE_OK"
+  if {$rc} {
+    set errcode [lindex [split $msg " "] 0]
+  } elseif { [lindex $msg 0] } {
+    set errcode "SQLITE_BUSY"
+  }
+
+  if {$errcode != "SQLITE_MISUSE" && [sqlite3_errcode $db] != $errcode} {
+    error "sqlite3_errcode mismatch! (1) $errcode!=[sqlite3_errcode $db]"
+  }
+
+  if {$rc==0} {
+    return $msg
+  } else {
+    error $msg
+  }
+}
+
+
+# The following tests are run 3 times, each using a different method of 
+# invoking a checkpoint:
+#
+#   1) Using sqlite3_wal_checkpoint_v2()
+#   2) Using "PRAGMA wal_checkpoint"
+#   3) Using sqlite3_wal_checkpoint() in place of checkpoint_v2(PASSIVE)
+#
+# Cases (2) and (3) are to show that the following statements are 
+# correct, respectively:
+#
+# EVIDENCE-OF: R-36706-10507 The PRAGMA wal_checkpoint command can be
+# used to invoke this interface from SQL.
+#
+# EVIDENCE-OF: R-41613-20553 The sqlite3_wal_checkpoint(D,X) is
+# equivalent to
+# sqlite3_wal_checkpoint_v2(D,X,SQLITE_CHECKPOINT_PASSIVE,0,0).
+# 
+foreach {tn script} {
+  1 {
+    proc checkpoint {db mode args} {
+      eval wal_checkpoint_v2 [list $db] [list $mode] $args
+    }
+  }
+
+  2 {
+    proc checkpoint {db mode args} {
+      set sql "PRAGMA wal_checkpoint = $mode"
+      if {[llength $args] && [lindex $args 0]!=""} {
+        set sql "PRAGMA [lindex $args 0].wal_checkpoint = $mode"
+      }
+      set rc [catch { $db eval $sql } msg]
+      if {$rc} {
+        regsub {database} $msg {database:} msg
+        error "[sqlite3_errcode $db] - $msg"
+      }
+      set msg
+    }
+  }
+
+  3 {
+    proc checkpoint {db mode args} {
+      if {$mode == "passive"} {
+        set rc [eval sqlite3_wal_checkpoint [list $db] $args]
+        if {$rc != "SQLITE_OK"} {
+          error "$rc - [sqlite3_errmsg $db]"
+        }
+      } else {
+        eval wal_checkpoint_v2 [list $db] [list $mode] $args
+      }
+    }
+  }
+
+} {
+
+  eval $script
+
+  reset_db
+  forcedelete test.db2 test.db3 test.db4
+  execsql {
+    ATTACH 'test.db2' AS aux;
+    ATTACH 'test.db3' AS aux2;
+    ATTACH 'test.db4' AS aux3;
+    CREATE TABLE t1(x);
+    CREATE TABLE aux.t2(x);
+    CREATE TABLE aux2.t3(x);
+    CREATE TABLE aux3.t4(x);
+    PRAGMA main.journal_mode = WAL;
+    PRAGMA aux.journal_mode = WAL;
+    PRAGMA aux2.journal_mode = WAL;
+    /* Leave aux4 in rollback mode */
+  }
+
+  # EVIDENCE-OF: R-49787-09095 The sqlite3_wal_checkpoint_v2(D,X,M,L,C)
+  # interface runs a checkpoint operation on database X of database
+  # connection D in mode M. Status information is written back into
+  # integers pointed to by L and C.
+  #
+  #     Tests 1, 2 and 3 below verify the "on database X" part of the
+  #     above. Other parts of this requirement are tested below.
+  #
+  # EVIDENCE-OF: R-00653-06026 If parameter zDb is NULL or points to a
+  # zero length string, then the specified operation is attempted on all
+  # WAL databases attached to database connection db.
+  #
+  #     Tests 4 and 5 below test this.
+  #
+  foreach {tn2 zDb dblist} {
+    1 main  test.db
+    2 aux   test.db2
+    3 aux2  test.db3
+    4 ""    {test.db test.db2 test.db3}
+    5 -     {test.db test.db2 test.db3}
+    6 temp  {}
+  } {
+    do_test $tn.1.$tn2 {
+      execsql {
+        INSERT INTO t1 VALUES(1);
+        INSERT INTO t2 VALUES(2);
+        INSERT INTO t3 VALUES(3);
+      }
+      save_db_hashes
+
+      if {$zDb == "-"} {
+        checkpoint db passive
+      } else {
+        checkpoint db passive $zDb
+      }
+
+      compare_db_hashes
+    } $dblist
+  }
+
+  # EVIDENCE-OF: R-38207-48996 If zDb is not NULL (or a zero length
+  # string) and is not the name of any attached database, SQLITE_ERROR is
+  # returned to the caller.
+  do_test $tn.2.1 {
+    list [catch { checkpoint db passive notadb } msg] $msg
+  } {1 {SQLITE_ERROR - unknown database: notadb}}
+
+  # EVIDENCE-OF: R-14303-42483 If database zDb is the name of an attached
+  # database that is not in WAL mode, SQLITE_OK is returned and both
+  # *pnLog and *pnCkpt set to -1.
+  #
+  if {$tn==3} {
+    # With sqlite3_wal_checkpoint() the two output variables cannot be 
+    # tested. So just test that no error is returned when attempting to
+    # checkpoint a db in rollback mode.
+    do_test $tn.2.2.a { checkpoint db passive aux3 } {}
+  } else {
+    do_test $tn.2.2.b { checkpoint db passive aux3 } {0 -1 -1}
+  }
+
+  # EVIDENCE-OF: R-62028-47212 All calls obtain an exclusive "checkpoint"
+  # lock on the database file.
+  db close
+  testvfs tvfs
+  tvfs filter xShmLock
+  tvfs script filelock
+  proc filelock {method file handle details} {
+    # Test for an exclusive checkpoint lock. A checkpoint lock locks a
+    # single byte starting at offset 1.
+    if {$details == "1 1 lock exclusive"} { set ::seen_checkpoint_lock 1 }
+  }
+  sqlite3 db test.db -vfs tvfs
+  do_test $tn.3.1 {
+    execsql { INSERT INTO t1 VALUES('xyz') }
+    unset -nocomplain ::seen_checkpoint_lock
+    checkpoint db passive
+    set ::seen_checkpoint_lock
+  } {1}
+  db close
+  tvfs delete
+  reset_db
+
+
+ 
+
+  #-----------------------------------------------------------------------
+  # EVIDENCE-OF: R-10421-19736 If any other process is running a
+  # checkpoint operation at the same time, the lock cannot be obtained and
+  # SQLITE_BUSY is returned.
+  #
+  # EVIDENCE-OF: R-53820-33897 Even if there is a busy-handler configured,
+  # it will not be invoked in this case.
+  #
+  testvfs tvfs
+  tvfs filter xWrite
+  sqlite3 db test.db -vfs tvfs
+  sqlite3 db2 test.db -vfs tvfs
+
+  do_test $tn.3.2.1 {
+    db2 eval {
+      PRAGMA auto_vacuum = 0;
+      PRAGMA journal_mode = WAL;
+      CREATE TABLE t1(x, y);
+      INSERT INTO t1 VALUES(1,2);
+      INSERT INTO t1 VALUES(3,4);
+      INSERT INTO t1 VALUES(5,6);
+    }
+    file size test.db-wal
+  } [wal_file_size 5 1024]
+
+
+  # Connection [db] runs a checkpoint. During this checkpoint, each
+  # time it calls xWrite() to write a page into the database file, we
+  # attempt to start a checkpoint using [db2]. According to the 
+  # first requirement being tested, this should return SQLITE_BUSY. According
+  # to the second, the busy-handler belonging to [db2] should not be
+  # invoked.
+  #
+  set ::write_count 0
+  set ::write_errors [list]
+  proc busy_callback {args} {
+    lappend ::write_errors "busy handler called!"
+  }
+  proc write_callback {args} {
+    set rc [catch {checkpoint db2 passive} msg]
+    if {0==[regexp "database is locked" $msg] && $msg!="1 -1 -1"} {
+      lappend ::write_errors "$rc $msg"
+    } 
+    incr ::write_count
+  }
+  db2 busy busy_callback
+  tvfs script write_callback
+
+  do_test $tn.3.2.2 {
+    db eval {SELECT * FROM sqlite_master}
+    checkpoint db full
+    set ::write_count
+  } {2}
+
+  do_test $tn.3.2.3 {
+    set ::write_errors
+  } {}
+
+  db close
+  db2 close
+  tvfs delete
+
+  proc busy_handler {mode busy_handler_mode n} {
+    incr ::busy_handler_counter
+    switch -- $busy_handler_mode {
+      1 {
+        # Do nothing. Do not block.
+        return 1
+      }
+
+      2 {
+        # Close first the reader, then later the writer. Give up before
+        # closing the [db6] reader.
+        if {$n==5}  { catch {db2 eval commit} }
+        if {$n==10} { catch {db3 eval commit} }
+        if {$n==15} { return 1 }
+        return 0
+      }
+
+      3 {
+        # Close first the writer, then later the reader. And finally the 
+        # [db6] reader.
+        if {$n==5}  { catch {db2 eval commit} }
+        if {$n==10} { catch {db3 eval commit} }
+        if {$n==15} { catch {db6 eval commit} }
+        return 0
+      }
+    }
+  }
+
+  foreach {mode busy_handler_mode} { 
+    passive  1
+    full     1       full     2       full    3
+    restart  1       restart  2       restart  3
+    truncate 1       truncate 2       truncate 3
+  } {
+    set tp "$tn.$mode.$busy_handler_mode"
+
+    set ::sync_counter 0
+
+    # Set up a callback function for xSync and xWrite calls made during
+    # the checkpoint.
+    #
+    set ::checkpoint_ongoing 0
+    proc tvfs_callback {method args} {
+      if {$::checkpoint_ongoing==0} return
+
+      set tail [file tail [lindex $args 0]]
+      if {$method == "xSync" && $tail == "test.db"} {
+        incr ::sync_counter
+      }
+      if {$method == "xWrite" && $tail=="test.db"} {
+        if {$::write_ok < 0} {
+          set ::write_ok [expr ![catch {db5 eval { BEGIN IMMEDIATE }}]]
+          catch { db5 eval ROLLBACK }
+        }
+        if {$::read_ok < 0} {
+          set ::read_ok [expr ![catch {db5 eval { SELECT * FROM t1 }}]]
+        }
+
+        # If one has not already been opened, open a read-transaction using
+        # connection [db6]
+        catch { db6 eval { BEGIN ; SELECT * FROM sqlite_master } } msg
+      }
+      if {$method == "xShmLock" } {
+        set details [lindex $args 2]
+        if {$details == "0 1 lock exclusive"} { set ::seen_writer_lock 1 }
+      }
+    }
+
+    catch { db close }
+    forcedelete test.db
+    testvfs tvfs
+    sqlite3 db test.db -vfs tvfs
+    #tvfs filter xSync
+    tvfs script tvfs_callback
+
+    do_execsql_test $tp.0 {
+      CREATE TABLE t1(a, b);
+      CREATE TABLE t2(a, b);
+      PRAGMA journal_mode = wal;
+      INSERT INTO t1 VALUES(1, 2);
+      INSERT INTO t1 VALUES(3, 4);
+      INSERT INTO t1 VALUES(5, 6);
+    } {wal}
+
+    # Open a reader on the current database snapshot.
+    do_test $tp.1 {
+      sqlite3 db2 test.db -vfs tvfs
+      execsql {
+        BEGIN;
+          SELECT * FROM t1 UNION ALL SELECT * FROM t2;
+      } db2
+    } {1 2 3 4 5 6}
+
+    # Open a writer. Write a transaction. Then begin, but do not commit,
+    # a second transaction.
+    do_test $tp.2 {
+      sqlite3 db3 test.db -vfs tvfs
+      execsql {
+        INSERT INTO t2 VALUES(7, 8);
+        BEGIN;
+          INSERT INTO t2 VALUES(9, 10);
+          SELECT * FROM t1 UNION ALL SELECT * FROM t2;
+      } db3
+    } {1 2 3 4 5 6 7 8 9 10}
+
+    sqlite3 db5 test.db -vfs tvfs
+    sqlite3 db6 test.db -vfs tvfs
+
+    # Register a busy-handler with connection [db].
+    #
+    db busy [list busy_handler $mode $busy_handler_mode]
+    set ::sync_counter 0
+    set ::busy_handler_counter 0
+    set ::read_ok -1
+    set ::write_ok -1
+    set ::seen_writer_lock 0
+    
+    set ::checkpoint_ongoing 1
+    do_test $tp.3 {
+      checkpoint db $mode main
+      set {} {}
+    } {}
+    set ::checkpoint_ongoing 0
+    set ::did_restart_blocking [expr {[catch {db6 eval commit}]}]
+
+    if { $mode=="passive" } {
+      # EVIDENCE-OF: R-16333-64433 Checkpoint as many frames as possible
+      # without waiting for any database readers or writers to finish, then
+      # sync the database file if all frames in the log were checkpointed.
+      #
+      #   "As many frames as possible" means all but the last two transactions
+      #   (the two that write to table t2, of which the scond is unfinished).
+      #   So copying the db file only we see the t1 change, but not the t2
+      #   modifications.
+      #
+      #   The busy handler is not invoked (see below) and the db reader and
+      #   writer are still active - so the checkpointer did not wait for either
+      #   readers or writers. As a result the checkpoint was not finished and
+      #   so the db file is not synced.
+      #
+      # EVIDENCE-OF: R-62920-47450 The busy-handler callback is never invoked
+      # in the SQLITE_CHECKPOINT_PASSIVE mode.
+      #
+      #   It's not. Test case "$tp.6".
+      #
+      do_test $tp.4 {
+        forcecopy test.db abc.db
+        sqlite3 db4 abc.db
+        db4 eval { SELECT * FROM t1 UNION ALL SELECT * FROM t2 }
+      } {1 2 3 4 5 6}
+      do_test $tp.5 { set ::sync_counter } 0
+      do_test $tp.6 { set ::busy_handler_counter } 0
+      db4 close
+  
+      db2 eval COMMIT
+      db3 eval COMMIT
+  
+      # EVIDENCE-OF: R-65499-53765 On the other hand, passive mode might leave
+      # the checkpoint unfinished if there are concurrent readers or writers.
+      #
+      #   The reader and writer have now dropped their locks. And so a 
+      #   checkpoint now is able to checkpoint more frames. Showing that the
+      #   attempt above was left "unfinished".
+      #
+      #   Also, because the checkpoint finishes this time, the db is synced.
+      #   Which is part of R-16333-64433 above.
+      #
+      set ::checkpoint_ongoing 1
+      do_test $tp.7 {
+        checkpoint db $mode main
+        forcecopy test.db abc.db
+        sqlite3 db4 abc.db
+        db4 eval { SELECT * FROM t1 UNION ALL SELECT * FROM t2 }
+      } {1 2 3 4 5 6 7 8 9 10}
+      set ::checkpoint_ongoing 0
+      do_test $tp.7 { set ::sync_counter } 1
+      do_test $tp.8 { set ::busy_handler_counter } 0
+      db4 close
+    }
+
+    if { $mode=="full" || $mode=="restart" || $mode=="truncate" } {
+
+      # EVIDENCE-OF: R-59782-36818 The SQLITE_CHECKPOINT_FULL, RESTART and
+      # TRUNCATE modes also obtain the exclusive "writer" lock on the 
+      # database file.
+      #
+      #   Or at least attempts to obtain.
+      #
+      do_test $tp.9 {
+        set ::seen_writer_lock
+      } {1}
+
+      if {$busy_handler_mode==2 || $busy_handler_mode==3} {
+        # EVIDENCE-OF: R-59171-47567 This mode blocks (it invokes the
+        # busy-handler callback) until there is no database writer and all
+        # readers are reading from the most recent database snapshot.
+        #
+        #   The test below shows that both the reader and writer have 
+        #   finished:
+        #
+        #   Also restated by the following two. That both busy_handler_mode
+        #   values 2 and 3 work show that both of the following are true - as
+        #   they release the reader and writer transactions in different
+        #   orders.
+        #
+        # EVIDENCE-OF: R-60642-04082 If the writer lock cannot be obtained
+        # immediately, and a busy-handler is configured, it is invoked and the
+        # writer lock retried until either the busy-handler returns 0 or the
+        # lock is successfully obtained.
+        #
+        # EVIDENCE-OF: R-48107-00250 The busy-handler is also invoked while
+        # waiting for database readers as described above.
+        #
+        do_test $tp.7 {
+          list [catchsql COMMIT db2] [catchsql COMMIT db3]
+        } [list                                             \
+            {1 {cannot commit - no transaction is active}}  \
+            {1 {cannot commit - no transaction is active}}  \
+        ]
+
+        # EVIDENCE-OF: R-29177-48281 It then checkpoints all frames in the log
+        # file and syncs the database file.
+        #
+        do_test $tp.8 {
+          forcecopy test.db abc.db
+          sqlite3 db4 abc.db
+          db4 eval { SELECT * FROM t1 UNION ALL SELECT * FROM t2 }
+        } {1 2 3 4 5 6 7 8 9 10}
+        do_test $tp.9 { set ::sync_counter } 1
+        db4 close
+
+        # EVIDENCE-OF: R-51867-44713 This mode blocks new database writers
+        # while it is pending, but new database readers are allowed to continue
+        # unimpeded.
+        #
+        # EVIDENCE-OF: R-47276-58266 Like SQLITE_CHECKPOINT_FULL, this mode
+        # blocks new database writer attempts while it is pending, but does not
+        # impede readers.
+        #
+        #   The first of the above two refers to "full" mode. The second
+        #   to "restart".
+        #
+        do_test $tp.10.1 {
+          list $::write_ok $::read_ok
+        } {0 1}
+
+        # EVIDENCE-OF: R-12410-31217 This mode works the same way as
+        # SQLITE_CHECKPOINT_FULL with the addition that after checkpointing the
+        # log file it blocks (calls the busy-handler callback) until all
+        # readers are reading from the database file only.
+        #
+        #     The stuff above passed, so the first part of this requirement
+        #     is met. The second part is tested below. If the checkpoint mode
+        #     was "restart" or "truncate", then the busy-handler will have
+        #     been called to block on wal-file readers.
+        #
+        do_test $tp.11 {
+          set ::did_restart_blocking
+        } [expr {($mode=="restart"||$mode=="truncate")&&$busy_handler_mode==3}]
+
+        # EVIDENCE-OF: R-44699-57140 This mode works the same way as
+        # SQLITE_CHECKPOINT_RESTART with the addition that it also truncates
+        # the log file to zero bytes just prior to a successful return.
+        if {$mode=="truncate" && $busy_handler_mode==3} {
+          do_test $tp.12 {
+            file size test.db-wal
+          } 0
+        }
+      } elseif {$busy_handler_mode==1} {
+
+        # EVIDENCE-OF: R-34519-06271 SQLITE_BUSY is returned in this case.
+        if {$tn!=2} {
+          # ($tn==2) is the loop that uses "PRAGMA wal_checkpoint"
+          do_test $tp.13 { sqlite3_errcode db } {SQLITE_BUSY}
+        }
+
+        # EVIDENCE-OF: R-49155-63541 If the busy-handler returns 0 before the
+        # writer lock is obtained or while waiting for database readers, the
+        # checkpoint operation proceeds from that point in the same way as
+        # SQLITE_CHECKPOINT_PASSIVE - checkpointing as many frames as possible
+        # without blocking any further.
+        do_test $tp.14 {
+          forcecopy test.db abc.db
+            sqlite3 db4 abc.db
+            db4 eval { SELECT * FROM t1 UNION ALL SELECT * FROM t2 }
+        } {1 2 3 4 5 6}
+        do_test $tp.15 { set ::sync_counter } 0
+        do_test $tp.16 { set ::busy_handler_counter } 1
+        db4 close
+      }
+    }
+
+    db2 close
+    db3 close
+    db5 close
+    db6 close
+  }
+
+  db close
+  tvfs delete
+}
+
+#-----------------------------------------------------------------------
+# EVIDENCE-OF: R-03996-12088 The M parameter must be a valid checkpoint
+# mode:
+#
+#   Valid checkpoint modes are 0, 1, 2 and 3.
+#
+sqlite3 db test.db
+foreach {tn mode res} {
+  0 -1001    {1 {SQLITE_MISUSE - not an error}}
+  1 -1       {1 {SQLITE_MISUSE - not an error}}
+  2  0       {0 {0 -1 -1}}
+  3  1       {0 {0 -1 -1}}
+  4  2       {0 {0 -1 -1}}
+  5  3       {0 {0 -1 -1}}
+  6  4       {1 {SQLITE_MISUSE - not an error}}
+  7  114     {1 {SQLITE_MISUSE - not an error}}
+  8  1000000 {1 {SQLITE_MISUSE - not an error}}
+} {
+  do_test 4.$tn {
+    list [catch "wal_checkpoint_v2 db $mode" msg] $msg
+  } $res
+}
+db close
+
+foreach tn {1 2 3} {
+  forcedelete test.db test.db2 test.db3
+  testvfs tvfs
+
+  sqlite3 db test.db -vfs tvfs
+  execsql {
+    ATTACH 'test.db2' AS aux2;
+    ATTACH 'test.db3' AS aux3;
+    PRAGMA main.journal_mode = WAL;
+    PRAGMA aux2.journal_mode = WAL;
+    PRAGMA aux3.journal_mode = WAL;
+
+    CREATE TABLE main.t1(x,y);
+    CREATE TABLE aux2.t2(x,y);
+    CREATE TABLE aux3.t3(x,y);
+
+    INSERT INTO t1 VALUES('a', 'b');
+    INSERT INTO t2 VALUES('a', 'b');
+    INSERT INTO t3 VALUES('a', 'b');
+  }
+  sqlite3 db2 test.db2 -vfs tvfs
+
+  switch -- $tn {
+    1 {
+      # EVIDENCE-OF: R-41299-52117 If no error (SQLITE_BUSY or otherwise) is
+      # encountered while processing the attached databases, SQLITE_OK is
+      # returned.
+      do_test 5.$tn.1 {
+        lindex [wal_checkpoint_v2 db truncate] 0
+      } {0}    ;# 0 -> SQLITE_OK
+      do_test 5.$tn.2 {
+        list [expr [file size test.db-wal]==0]  \
+             [expr [file size test.db2-wal]==0] \
+             [expr [file size test.db3-wal]==0]
+      } {1 1 1}
+    }
+
+    2 {
+      # EVIDENCE-OF: R-38578-34175 If an SQLITE_BUSY error is encountered when
+      # processing one or more of the attached WAL databases, the operation is
+      # still attempted on any remaining attached databases and SQLITE_BUSY is
+      # returned at the end.
+      db2 eval { BEGIN; INSERT INTO t2 VALUES('d', 'e'); }
+      do_test 5.$tn.1 {
+        lindex [wal_checkpoint_v2 db truncate] 0
+      } {1}    ;# 1 -> SQLITE_BUSY
+      do_test 5.$tn.2 {
+        list [expr [file size test.db-wal]==0]  \
+             [expr [file size test.db2-wal]==0] \
+             [expr [file size test.db3-wal]==0]
+      } {1 0 1}
+      db2 eval ROLLBACK
+    }
+
+    3 {
+      # EVIDENCE-OF: R-38049-07913 If any other error occurs while processing
+      # an attached database, processing is abandoned and the error code is
+      # returned to the caller immediately.
+      tvfs filter xWrite
+      tvfs script inject_ioerr
+      proc inject_ioerr {method file args} {
+        if {[file tail $file]=="test.db2"} {
+          return "SQLITE_IOERR"
+        }
+        return 0
+      }
+      do_test 5.$tn.1 {
+        list [catch { wal_checkpoint_v2 db truncate } msg] $msg
+      } {1 {SQLITE_IOERR - disk I/O error}}
+      do_test 5.$tn.2 {
+        list [expr [file size test.db-wal]==0]  \
+             [expr [file size test.db2-wal]==0] \
+             [expr [file size test.db3-wal]==0]
+      } {1 0 0}
+      tvfs script ""
+    }
+  }
+
+  db close
+  db2 close
+}
+
+reset_db
+sqlite3 db2 test.db
+
+do_test 6.1 {
+  execsql {
+    PRAGMA auto_vacuum = 0; 
+    PRAGMA journal_mode = WAL;
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, 2);
+  }
+  file size test.db-wal
+} [wal_file_size 3 1024]
+
+do_test 6.2 {
+  db2 eval { BEGIN; SELECT * FROM t1; }
+  db  eval { INSERT INTO t1 VALUES(3, 4) }
+  file size test.db-wal
+} [wal_file_size 4 1024]
+
+#   At this point the log file contains 4 frames. 3 of which it should
+#   be possible to checkpoint.
+#
+# EVIDENCE-OF: R-16642-42503 If pnLog is not NULL, then *pnLog is set to
+# the total number of frames in the log file or to -1 if the checkpoint
+# could not run because of an error or because the database is not in
+# WAL mode.
+#
+# EVIDENCE-OF: R-10514-25250 If pnCkpt is not NULL,then *pnCkpt is set
+# to the total number of checkpointed frames in the log file (including
+# any that were already checkpointed before the function was called) or
+# to -1 if the checkpoint could not run due to an error or because the
+# database is not in WAL mode.
+#
+do_test 6.4 {
+  lrange [wal_checkpoint_v2 db passive] 1 2
+} {4 3} 
+
+# EVIDENCE-OF: R-37257-17813 Note that upon successful completion of an
+# SQLITE_CHECKPOINT_TRUNCATE, the log file will have been truncated to
+# zero bytes and so both *pnLog and *pnCkpt will be set to zero.
+#
+do_test 6.5 {
+  db2 eval COMMIT
+  wal_checkpoint_v2 db truncate
+} {0 0 0}
+
+
+
+finish_test
diff --git a/test/e_walhook.test b/test/e_walhook.test
new file mode 100644
index 0000000000000000000000000000000000000000..b4a31563677b3da088b1e262ea39e291896251d8
--- /dev/null
+++ b/test/e_walhook.test
@@ -0,0 +1,200 @@
+# 2014 December 04
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/wal_common.tcl
+set testprefix e_walhook
+
+
+# EVIDENCE-OF: R-00752-43975 The sqlite3_wal_hook() function is used to
+# register a callback that is invoked each time data is committed to a
+# database in wal mode.
+#
+#   1.1: shows that the wal-hook is not invoked in rollback mode.
+#   1.2: but is invoked in wal mode.
+#
+set ::wal_hook_count 0
+proc my_wal_hook {args} {
+  incr ::wal_hook_count
+  return 0
+}
+
+do_test 1.1.1 {
+  db wal_hook my_wal_hook
+  execsql {
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(1);
+  }
+  set ::wal_hook_count
+} 0
+do_test 1.1.2 {
+  execsql { PRAGMA journal_mode = wal }
+  set ::wal_hook_count
+} 0
+
+do_test 1.3 {
+  execsql { INSERT INTO t1 VALUES(2) }
+  set wal_hook_count
+} 1
+
+do_test 1.4 {
+  execsql { 
+    BEGIN;
+      INSERT INTO t1 VALUES(3);
+      INSERT INTO t1 VALUES(4);
+    COMMIT;
+  }
+  set wal_hook_count
+} 2
+
+# EVIDENCE-OF: R-65366-15139 The callback is invoked by SQLite after the
+# commit has taken place and the associated write-lock on the database
+# released
+#
+set ::read_ok 0
+proc my_wal_hook {args} {
+  sqlite3 db2 test.db
+  if {[db2 eval { SELECT * FROM t1 }] == "1 2 3 4 5"} {
+    set ::read_ok 1
+  }
+  db2 close
+}
+do_test 2.1 {
+  execsql { INSERT INTO t1 VALUES(5) }
+  set ::read_ok
+} 1
+
+# EVIDENCE-OF: R-44294-52863 The third parameter is the name of the
+# database that was written to - either "main" or the name of an
+# ATTACH-ed database.
+#
+# EVIDENCE-OF: R-18913-19355 The fourth parameter is the number of pages
+# currently in the write-ahead log file, including those that were just
+# committed.
+#
+set ::wal_hook_args [list]
+proc my_wal_hook {dbname nEntry} {
+  set ::wal_hook_args [list $dbname $nEntry]
+}
+forcedelete test.db2
+do_test 3.0 {
+  execsql {
+    ATTACH 'test.db2' AS aux;
+    CREATE TABLE aux.t2(x);
+    PRAGMA aux.journal_mode = wal;
+  }
+} {wal}
+
+# Database "aux"
+do_test 3.1.1 {
+  set wal_hook_args [list]
+  execsql { INSERT INTO t2 VALUES('a') }
+} {}
+do_test 3.1.2 {
+  set wal_hook_args
+} [list aux [wal_frame_count test.db2-wal 1024]]
+
+# Database "main"
+do_test 3.2.1 {
+  set wal_hook_args [list]
+  execsql { INSERT INTO t1 VALUES(6) }
+} {}
+do_test 3.1.2 {
+  set wal_hook_args
+} [list main [wal_frame_count test.db-wal 1024]]
+
+# EVIDENCE-OF: R-14034-00929 If an error code is returned, that error
+# will propagate back up through the SQLite code base to cause the
+# statement that provoked the callback to report an error, though the
+# commit will have still occurred.
+#
+proc my_wal_hook {args} { return 1 ;# SQLITE_ERROR }
+do_catchsql_test 4.1 {
+  INSERT INTO t1 VALUES(7)
+} {1 {SQL logic error}}
+
+proc my_wal_hook {args} { return 5 ;# SQLITE_BUSY }
+do_catchsql_test 4.2 {
+  INSERT INTO t1 VALUES(8)
+} {1 {database is locked}}
+
+proc my_wal_hook {args} { return 14 ;# SQLITE_CANTOPEN }
+do_catchsql_test 4.3 {
+  INSERT INTO t1 VALUES(9)
+} {1 {unable to open database file}}
+
+do_execsql_test 4.4 {
+  SELECT * FROM t1
+} {1 2 3 4 5 6 7 8 9}
+
+# EVIDENCE-OF: R-10466-53920 Calling sqlite3_wal_hook() replaces any
+# previously registered write-ahead log callback.
+set ::old_wal_hook 0
+proc my_old_wal_hook {args} {
+  incr ::old_wal_hook 
+  return 0
+}
+db wal_hook my_old_wal_hook
+do_test 5.1 {
+  execsql { INSERT INTO t1 VALUES(10) }
+  set ::old_wal_hook
+} {1}
+
+# Replace old_wal_hook. Observe that it is not invoked after it has 
+# been replaced.
+proc my_new_wal_hook {args} { return 0 }
+db wal_hook my_new_wal_hook
+do_test 5.2 {
+  execsql { INSERT INTO t1 VALUES(11) }
+  set ::old_wal_hook
+} {1}
+
+
+
+# EVIDENCE-OF: R-57445-43425 Note that the sqlite3_wal_autocheckpoint()
+# interface and the wal_autocheckpoint pragma both invoke
+# sqlite3_wal_hook() and will overwrite any prior sqlite3_wal_hook()
+# settings.
+#
+set ::old_wal_hook 0
+proc my_old_wal_hook {args} { incr ::old_wal_hook ; return 0 }
+db wal_hook my_old_wal_hook
+do_test 6.1.1 {
+  execsql { INSERT INTO t1 VALUES(12) }
+  set ::old_wal_hook
+} {1}
+do_test 6.1.2 {
+  execsql { PRAGMA wal_autocheckpoint = 1000 }
+  execsql { INSERT INTO t1 VALUES(12) }
+  set ::old_wal_hook
+} {1}
+
+# EVIDENCE-OF: R-52629-38967 The first parameter passed to the callback
+# function when it is invoked is a copy of the third parameter passed to
+# sqlite3_wal_hook() when registering the callback.
+#
+#    This is tricky to test using the tcl interface. However, the
+#    mechanism used to invoke the tcl script registered as a wal-hook
+#    depends on the context pointer being correctly passed through. And
+#    since multiple different wal-hook scripts have been successfully
+#    invoked by this test script, consider this tested.
+#
+# EVIDENCE-OF: R-23378-42536 The second is a copy of the database
+# handle.
+#
+#    There is an assert() in the C wal-hook used by tclsqlite.c to
+#    prove this. And that hook has been invoked multiple times when
+#    running this script. So consider this requirement tested as well.
+#
+
+finish_test
diff --git a/test/emptytable.test b/test/emptytable.test
new file mode 100644
index 0000000000000000000000000000000000000000..79cd16e9133d4bd1bd9e4e76ed3b982789201e6e
--- /dev/null
+++ b/test/emptytable.test
@@ -0,0 +1,50 @@
+# 2017-02-15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test cases to show that a join involving an empty table is very fast.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Build some test data
+#
+do_execsql_test emptytable-100 {
+  CREATE TABLE t1(a);
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<100)
+    INSERT INTO t1(a) SELECT x FROM c;
+  CREATE TABLE empty(x);
+  SELECT count(*) FROM t1;
+} {100}
+
+# Interrupt queries after 1M cycles to prevent burning excess CPU
+proc stopDb {args} {
+  db interrupt
+}
+db progress 1000000 {stopDb}
+
+# Prior to the query planner optimization on 2017-02-15, this query would
+# take a ridiculous amount of time.  If that optimization stops working,
+# the result here will be in interrupt for running too long.
+#
+do_catchsql_test emptytable-110 {
+  SELECT count(*) FROM t1, t1, t1, t1, t1, t1, empty;
+} {0 0}
+
+do_catchsql_test emptytable-120 {
+  SELECT count(*) FROM t1, t1 LEFT JOIN empty;
+} {0 10000}
+do_catchsql_test emptytable-121 {
+  SELECT count(*) FROM t1, t1 LEFT JOIN t1, empty;
+} {0 0}
+
+
+finish_test
diff --git a/test/enc.test b/test/enc.test
new file mode 100644
index 0000000000000000000000000000000000000000..0aec224e2d874427e7067ece16836d5933d0d38c
--- /dev/null
+++ b/test/enc.test
@@ -0,0 +1,281 @@
+# 2002 May 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The focus of
+# this file is testing the SQLite routines used for converting between the
+# various suported unicode encodings (UTF-8, UTF-16, UTF-16le and
+# UTF-16be).
+#
+# $Id: enc.test,v 1.7 2007/05/23 16:23:09 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Skip this test if the build does not support multiple encodings.
+#
+ifcapable {!utf16} {
+  finish_test
+  return
+}
+
+proc do_bincmp_test {testname got expect} {
+  binary scan $expect \c* expectvals
+  binary scan $got \c* gotvals
+  do_test $testname [list set dummy $gotvals] $expectvals
+}
+
+# $utf16 is a UTF-16 encoded string. Swap each pair of bytes around
+# to change the byte-order of the string.
+proc swap_byte_order {utf16} {
+  binary scan $utf16 \c* ints
+
+  foreach {a b} $ints {
+    lappend ints2 $b
+    lappend ints2 $a
+  }
+
+  return [binary format \c* $ints2]
+}
+
+#
+# Test that the SQLite routines for converting between UTF encodings
+# produce the same results as their TCL counterparts.
+#
+# $testname is the prefix to be used for the test names.
+# $str is a string to use for testing (encoded in UTF-8, as normal for TCL).
+#
+# The test procedure is:
+# 1. Convert the string from UTF-8 to UTF-16le and check that the TCL and
+#    SQLite routines produce the same results.
+#
+# 2. Convert the string from UTF-8 to UTF-16be and check that the TCL and
+#    SQLite routines produce the same results.
+#
+# 3. Use the SQLite routines to convert the native machine order UTF-16
+#    representation back to the original UTF-8. Check that the result
+#    matches the original representation.
+#
+# 4. Add a byte-order mark to each of the UTF-16 representations and
+#    check that the SQLite routines can convert them back to UTF-8.  For
+#    byte-order mark info, refer to section 3.10 of the unicode standard.
+#
+# 5. Take the byte-order marked UTF-16 strings from step 4 and ensure
+#    that SQLite can convert them both to native byte order UTF-16 
+#    strings, sans BOM.
+#
+# Coverage:
+#
+# sqlite_utf8to16be (step 2)
+# sqlite_utf8to16le (step 1)
+# sqlite_utf16to8 (steps 3, 4)
+# sqlite_utf16to16le (step 5)
+# sqlite_utf16to16be (step 5)
+#
+proc test_conversion {testname str} {
+ 
+  # Step 1.
+  set utf16le_sqlite3 [test_translate $str UTF8 UTF16LE]
+  set utf16le_tcl [encoding convertto unicode $str]
+  append utf16le_tcl "\x00\x00"
+  if { $::tcl_platform(byteOrder)!="littleEndian" } {
+    set utf16le_tcl [swap_byte_order $utf16le_tcl]
+  }
+  do_bincmp_test $testname.1 $utf16le_sqlite3 $utf16le_tcl
+  set utf16le $utf16le_tcl
+
+  # Step 2.
+  set utf16be_sqlite3 [test_translate $str UTF8 UTF16BE]
+  set utf16be_tcl [encoding convertto unicode $str]
+  append utf16be_tcl "\x00\x00"
+  if { $::tcl_platform(byteOrder)=="littleEndian" } {
+    set utf16be_tcl [swap_byte_order $utf16be_tcl]
+  }
+  do_bincmp_test $testname.2 $utf16be_sqlite3 $utf16be_tcl
+  set utf16be $utf16be_tcl
+ 
+  # Step 3.
+  if { $::tcl_platform(byteOrder)=="littleEndian" } {
+    set utf16 $utf16le
+  } else {
+    set utf16 $utf16be
+  }
+  set utf8_sqlite3 [test_translate $utf16 UTF16 UTF8]
+  do_bincmp_test $testname.3 $utf8_sqlite3 [binarize $str]
+
+  # Step 4 (little endian).
+  append utf16le_bom "\xFF\xFE" $utf16le
+  set utf8_sqlite3 [test_translate $utf16le_bom UTF16 UTF8 1]
+  do_bincmp_test $testname.4.le $utf8_sqlite3 [binarize $str]
+
+  # Step 4 (big endian).
+  append utf16be_bom "\xFE\xFF" $utf16be
+  set utf8_sqlite3 [test_translate $utf16be_bom UTF16 UTF8]
+  do_bincmp_test $testname.4.be $utf8_sqlite3 [binarize $str]
+
+  # Step 5 (little endian to little endian).
+  set utf16_sqlite3 [test_translate $utf16le_bom UTF16LE UTF16LE]
+  do_bincmp_test $testname.5.le.le $utf16_sqlite3 $utf16le
+
+  # Step 5 (big endian to big endian).
+  set utf16_sqlite3 [test_translate $utf16be_bom UTF16 UTF16BE]
+  do_bincmp_test $testname.5.be.be $utf16_sqlite3 $utf16be
+
+  # Step 5 (big endian to little endian).
+  set utf16_sqlite3 [test_translate $utf16be_bom UTF16 UTF16LE]
+  do_bincmp_test $testname.5.be.le $utf16_sqlite3 $utf16le
+
+  # Step 5 (little endian to big endian).
+  set utf16_sqlite3 [test_translate $utf16le_bom UTF16 UTF16BE]
+  do_bincmp_test $testname.5.le.be $utf16_sqlite3 $utf16be
+}
+
+translate_selftest
+
+test_conversion enc-1 "hello world"
+test_conversion enc-2 "sqlite"
+test_conversion enc-3 ""
+test_conversion enc-X "\u0100"
+test_conversion enc-4 "\u1234"
+test_conversion enc-5 "\u4321abc"
+test_conversion enc-6 "\u4321\u1234"
+test_conversion enc-7 [string repeat "abcde\u00EF\u00EE\uFFFCabc" 100]
+test_conversion enc-8 [string repeat "\u007E\u007F\u0080\u0081" 100]
+test_conversion enc-9 [string repeat "\u07FE\u07FF\u0800\u0801\uFFF0" 100]
+test_conversion enc-10 [string repeat "\uE000" 100]
+
+proc test_collate {enc zLeft zRight} {
+  return [string compare $zLeft $zRight]
+}
+add_test_collate $::DB 0 0 1
+do_test enc-11.1 {
+  execsql {
+    CREATE TABLE ab(a COLLATE test_collate, b);
+    INSERT INTO ab VALUES(CAST (X'C388' AS TEXT), X'888800');
+    INSERT INTO ab VALUES(CAST (X'C0808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808388' AS TEXT), X'888800');
+    CREATE INDEX ab_i ON ab(a, b);
+  }
+} {}
+do_test enc-11.2 {
+  set cp200 "\u00C8"
+  execsql {
+    SELECT count(*) FROM ab WHERE a = $::cp200;
+  }
+} {2}
+
+#-------------------------------------------------------------------------
+reset_db
+forcedelete test.db2
+forcedelete test.db3
+
+do_execsql_test enc-12.0 {
+  PRAGMA encoding = 'utf-8';
+  CREATE TABLE t1(a, b, c);
+  INSERT INTO t1 VALUES('a', 'b', 'c');
+  ATTACH 'test.db3' AS aux;
+  CREATE TABLE aux.t3(x, y, z);
+  INSERT INTO t3 VALUES('xxx', 'yyy', 'zzz');
+  PRAGMA encoding;
+} {UTF-8}
+
+do_test enc-12.1 {
+  sqlite3 db2 test.db2
+  db2 eval {
+    PRAGMA encoding = 'UTF-16le';
+    CREATE TABLE t2(d, e, f);
+    INSERT INTO t2 VALUES('d', 'e', 'f');
+    PRAGMA encoding;
+  }
+} {UTF-16le}
+
+do_test enc-12.2 {
+  db2 backup test.db
+  db2 close
+} {}
+
+do_catchsql_test enc-12.3 {
+  SELECT * FROM t2;
+} {1 {attached databases must use the same text encoding as main database}}
+
+db close
+sqlite3 db test.db3
+do_execsql_test enc-12.4 {
+  SELECT * FROM t3;
+  PRAGMA encoding = 'UTF-16le';
+  SELECT * FROM t3;
+} {xxx yyy zzz xxx yyy zzz}
+
+db close
+sqlite3 db test.db3
+breakpoint
+do_execsql_test enc-12.5 {
+  PRAGMA encoding = 'UTF-16le';
+  PRAGMA encoding;
+} {UTF-8}
+
+reset_db
+do_execsql_test enc-12.6 {
+  PRAGMA encoding = 'UTF-8';
+  CREATE TEMP TABLE t1(a, b, c);
+  INSERT INTO t1 VALUES('xxx', 'yyy', 'zzz');
+}
+do_test enc-12.7 {
+  sqlite3 db2 test.db2
+  db2 backup test.db
+  db2 close
+  db eval {
+    SELECT * FROM t1;
+  }
+} {xxx yyy zzz}
+do_catchsql_test enc-12.8 {
+  SELECT * FROM t2;
+  SELECT * FROM t1;
+} {1 {attached databases must use the same text encoding as main database}}
+
+db close
+sqlite3 db test.db
+do_execsql_test enc-12.9 {
+  CREATE TEMP TABLE t1(a, b, c);
+  INSERT INTO t1 VALUES('xxx', 'yyy', 'zzz');
+}
+do_execsql_test enc-12.10 {
+  SELECT * FROM t2;
+  SELECT * FROM t1;
+} {d e f xxx yyy zzz}
+
+
+# 2024-11-04
+# https://sqlite.org/forum/forumpost/bc75a4d20b756044
+#
+# Ensure the database encoding is detected in a timely manner,
+# and before we get too far along in generating and running
+# bytecode.
+#
+# See also check-in https://sqlite.org/src/info/a02da71f3a.
+#
+db close
+forcedelete utf16.db
+sqlite3 db utf16.db
+db eval {PRAGMA encoding=UTF16; CREATE TABLE t2(y); INSERT INTO t2 VALUES('utf16');}
+db close
+sqlite3 db utf16.db
+do_test enc-13.1 {
+  db eval {PRAGMA function_list} {db eval {SELECT * FROM sqlite_schema}}
+} {}
+ifcapable rtree {
+  db eval {CREATE VIRTUAL TABLE t3 USING rtree(id,x1,x2)}
+  db close
+  sqlite3 db utf16.db
+  do_execsql_test enc-13.2 {
+    WITH t1(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM t1 WHERE x<3)
+    SELECT rtreecheck('t3') FROM t1;
+  } {ok ok ok}
+}
+
+finish_test
diff --git a/test/enc2.test b/test/enc2.test
new file mode 100644
index 0000000000000000000000000000000000000000..81e7bfd68cbbb386633b2e9bc17fd8f113462f94
--- /dev/null
+++ b/test/enc2.test
@@ -0,0 +1,567 @@
+# 2002 May 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The focus of
+# this file is testing the SQLite routines used for converting between the
+# various suported unicode encodings (UTF-8, UTF-16, UTF-16le and
+# UTF-16be).
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If UTF16 support is disabled, ignore the tests in this file
+#
+ifcapable {!utf16} {
+  finish_test
+  return
+}
+
+# The rough organisation of tests in this file is:
+#
+# enc2.1.*: Simple tests with a UTF-8 db.
+# enc2.2.*: Simple tests with a UTF-16LE db.
+# enc2.3.*: Simple tests with a UTF-16BE db.
+# enc2.4.*: Test that attached databases must have the same text encoding
+#           as the main database.
+# enc2.5.*: Test the behavior of the library when a collation sequence is
+#           not available for the most desirable text encoding.
+# enc2.6.*: Similar test for user functions.
+# enc2.7.*: Test that the VerifyCookie opcode protects against assuming the
+#           wrong text encoding for the database.
+# enc2.8.*: Test sqlite3_complete16()
+#
+
+db close
+
+# Return the UTF-8 representation of the supplied UTF-16 string $str. 
+proc utf8 {str} {
+  # If $str ends in two 0x00 0x00 bytes, knock these off before
+  # converting to UTF-8 using TCL.
+  binary scan $str \c* vals
+  if {[lindex $vals end]==0 && [lindex $vals end-1]==0} {
+    set str [binary format \c* [lrange $vals 0 end-2]]
+  }
+
+  set r [encoding convertfrom unicode $str]
+  return $r
+}
+
+#
+# This proc contains all the tests in this file. It is run
+# three times. Each time the file 'test.db' contains a database
+# with the following contents:
+set dbcontents {
+  CREATE TABLE t1(a PRIMARY KEY, b, c);
+  INSERT INTO t1 VALUES('one', 'I', 1);
+}
+# This proc tests that we can open and manipulate the test.db 
+# database, and that it is possible to retreive values in
+# various text encodings.
+#
+proc run_test_script {t enc} {
+
+# Open the database and pull out a (the) row.
+do_test $t.1 {
+  sqlite3 db test.db; set DB [sqlite3_connection_pointer db]
+  execsql {SELECT * FROM t1}
+} {one I 1}
+
+# Insert some data
+do_test $t.2 {
+  execsql {INSERT INTO t1 VALUES('two', 'II', 2);}
+  execsql {SELECT * FROM t1}
+} {one I 1 two II 2}
+
+# Insert some data 
+do_test $t.3 {
+  execsql {
+    INSERT INTO t1 VALUES('three','III',3);
+    INSERT INTO t1 VALUES('four','IV',4);
+    INSERT INTO t1 VALUES('five','V',5);
+  }
+  execsql {SELECT * FROM t1}
+} {one I 1 two II 2 three III 3 four IV 4 five V 5}
+
+# Use the index
+do_test $t.4 {
+  execsql {
+    SELECT * FROM t1 WHERE a = 'one';
+  }
+} {one I 1}
+do_test $t.5 {
+  execsql {
+    SELECT * FROM t1 WHERE a = 'four';
+  }
+} {four IV 4}
+ifcapable subquery {
+  do_test $t.6 {
+    execsql {
+      SELECT * FROM t1 WHERE a IN ('one', 'two');
+    }
+  } {one I 1 two II 2}
+}
+
+# Now check that we can retrieve data in both UTF-16 and UTF-8
+do_test $t.7 {
+  set STMT [sqlite3_prepare $DB "SELECT a FROM t1 WHERE c>3;" -1 TAIL]
+  sqlite3_step $STMT
+  sqlite3_column_text $STMT 0
+} {four}
+
+do_test $t.8 {
+  sqlite3_step $STMT
+  utf8 [sqlite3_column_text16 $STMT 0]
+} {five}
+
+do_test $t.9 {
+  sqlite3_finalize $STMT
+} SQLITE_OK
+
+ifcapable vacuum {
+  execsql VACUUM
+}
+
+do_test $t.10 {
+  db eval {PRAGMA encoding}
+} $enc
+
+}
+
+# The three unicode encodings understood by SQLite.
+set encodings [list UTF-8 UTF-16le UTF-16be]
+
+set sqlite_os_trace 0
+set i 1
+foreach enc $encodings {
+  forcedelete test.db
+  sqlite3 db test.db
+  db eval "PRAGMA encoding = \"$enc\""
+  execsql $dbcontents
+  do_test enc2-$i.0.1 {
+    db eval {PRAGMA encoding}
+  } $enc
+  do_test enc2-$i.0.2 {
+    db eval {PRAGMA encoding=UTF8}
+    db eval {PRAGMA encoding}
+  } $enc
+  do_test enc2-$i.0.3 {
+    db eval {PRAGMA encoding=UTF16le}
+    db eval {PRAGMA encoding}
+  } $enc
+  do_test enc2-$i.0.4 {
+    db eval {PRAGMA encoding=UTF16be}
+    db eval {PRAGMA encoding}
+  } $enc
+
+  db close
+  run_test_script enc2-$i $enc
+  db close
+  incr i
+}
+
+# Test that it is an error to try to attach a database with a different
+# encoding to the main database.
+ifcapable attach {
+  do_test enc2-4.1 {
+    forcedelete test.db
+    sqlite3 db test.db
+    db eval "PRAGMA encoding = 'UTF-8'"
+    db eval "CREATE TABLE abc(a, b, c);"
+  } {}
+  do_test enc2-4.2 {
+    forcedelete test2.db
+    sqlite3 db2 test2.db
+    db2 eval "PRAGMA encoding = 'UTF-16'"
+    db2 eval "CREATE TABLE abc(a, b, c);"
+  } {}
+  do_test enc2-4.3 {
+    catchsql {
+      ATTACH 'test2.db' as aux;
+    }
+  } {1 {attached databases must use the same text encoding as main database}}
+  db2 close
+  db close
+}
+
+# The following tests - enc2-5.* - test that SQLite selects the correct
+# collation sequence when more than one is available.
+
+set ::values [list one two three four five]
+set ::test_collate_enc INVALID
+proc test_collate {enc lhs rhs} {
+  set ::test_collate_enc $enc
+  set l [lsearch -exact $::values $lhs]
+  set r [lsearch -exact $::values $rhs]
+  set res [expr $l - $r]
+  # puts "enc=$enc lhs=$lhs/$l rhs=$rhs/$r res=$res"
+  return $res
+}
+
+forcedelete test.db
+sqlite3 db test.db; set DB [sqlite3_connection_pointer db]
+do_test enc2-5.0 {
+  execsql {
+    CREATE TABLE t5(a);
+    INSERT INTO t5 VALUES('one');
+    INSERT INTO t5 VALUES('two');
+    INSERT INTO t5 VALUES('five');
+    INSERT INTO t5 VALUES('three');
+    INSERT INTO t5 VALUES('four');
+  }
+} {}
+do_test enc2-5.1 {
+  add_test_collate $DB 1 1 1
+  set res [execsql {SELECT * FROM t5 ORDER BY 1 COLLATE test_collate;}]
+  lappend res $::test_collate_enc
+} {one two three four five UTF-8}
+do_test enc2-5.2 {
+  add_test_collate $DB 0 1 0
+  set res [execsql {SELECT * FROM t5 ORDER BY 1 COLLATE test_collate}]
+  lappend res $::test_collate_enc
+} {one two three four five UTF-16LE}
+do_test enc2-5.3 {
+  add_test_collate $DB 0 0 1
+  set res [execsql {SELECT * FROM t5 ORDER BY 1 COLLATE test_collate}]
+  lappend res $::test_collate_enc
+} {one two three four five UTF-16BE}
+
+db close
+forcedelete test.db
+sqlite3 db test.db; set DB [sqlite3_connection_pointer db]
+execsql {pragma encoding = 'UTF-16LE'}
+do_test enc2-5.4 {
+  execsql {
+    CREATE TABLE t5(a);
+    INSERT INTO t5 VALUES('one');
+    INSERT INTO t5 VALUES('two');
+    INSERT INTO t5 VALUES('five');
+    INSERT INTO t5 VALUES('three');
+    INSERT INTO t5 VALUES('four');
+  }
+} {}
+do_test enc2-5.5 {
+  add_test_collate $DB 1 1 1
+  set res [execsql {SELECT * FROM t5 ORDER BY 1 COLLATE test_collate}]
+  lappend res $::test_collate_enc
+} {one two three four five UTF-16LE}
+do_test enc2-5.6 {
+  add_test_collate $DB 1 0 1
+  set res [execsql {SELECT * FROM t5 ORDER BY 1 COLLATE test_collate}]
+  lappend res $::test_collate_enc
+} {one two three four five UTF-16BE}
+do_test enc2-5.7 {
+  add_test_collate $DB 1 0 0
+  set res [execsql {SELECT * FROM t5 ORDER BY 1 COLLATE test_collate}]
+  lappend res $::test_collate_enc
+} {one two three four five UTF-8}
+
+db close
+forcedelete test.db
+sqlite3 db test.db; set DB [sqlite3_connection_pointer db]
+execsql {pragma encoding = 'UTF-16BE'}
+do_test enc2-5.8 {
+  execsql {
+    CREATE TABLE t5(a);
+    INSERT INTO t5 VALUES('one');
+    INSERT INTO t5 VALUES('two');
+    INSERT INTO t5 VALUES('five');
+    INSERT INTO t5 VALUES('three');
+    INSERT INTO t5 VALUES('four');
+  }
+} {}
+do_test enc2-5.9 {
+  add_test_collate $DB 1 1 1
+  set res [execsql {SELECT * FROM t5 ORDER BY 1 COLLATE test_collate}]
+  lappend res $::test_collate_enc
+} {one two three four five UTF-16BE}
+do_test enc2-5.10 {
+  add_test_collate $DB 1 1 0
+  set res [execsql {SELECT * FROM t5 ORDER BY 1 COLLATE test_collate}]
+  lappend res $::test_collate_enc
+} {one two three four five UTF-16LE}
+do_test enc2-5.11 {
+  add_test_collate $DB 1 0 0
+  set res [execsql {SELECT * FROM t5 ORDER BY 1 COLLATE test_collate}]
+  lappend res $::test_collate_enc
+} {one two three four five UTF-8}
+
+# Also test that a UTF-16 collation factory works.
+do_test enc2-5-12 {
+  add_test_collate $DB 0 0 0
+  catchsql {
+    SELECT * FROM t5 ORDER BY 1 COLLATE test_collate
+  }
+} {1 {no such collation sequence: test_collate}}
+do_test enc2-5.13 {
+  add_test_collate_needed $DB 
+  set res [execsql {SELECT * FROM t5 ORDER BY 1 COLLATE test_collate; }]
+  lappend res $::test_collate_enc
+} {one two three four five UTF-16BE}
+do_test enc2-5.14 {
+  set ::sqlite_last_needed_collation
+} test_collate
+
+db close
+forcedelete test.db
+
+do_test enc2-5.15 {
+  sqlite3 db test.db; set ::DB [sqlite3_connection_pointer db]
+  add_test_collate_needed $::DB
+  set ::sqlite_last_needed_collation
+} {}
+do_test enc2-5.16 {
+  execsql {CREATE TABLE t1(a varchar collate test_collate);}
+} {}
+do_test enc2-5.17 {
+  set ::sqlite_last_needed_collation
+} {test_collate}
+
+# The following tests - enc2-6.* - test that SQLite selects the correct
+# user function when more than one is available.
+
+proc test_function {enc arg} {
+  return "$enc $arg"
+}
+
+db close
+forcedelete test.db
+sqlite3 db test.db; set DB [sqlite3_connection_pointer db]
+execsql {pragma encoding = 'UTF-8'}
+do_test enc2-6.0 {
+  execsql {
+    CREATE TABLE t5(a);
+    INSERT INTO t5 VALUES('one');
+  }
+} {}
+do_test enc2-6.1 {
+  add_test_function $DB 1 1 1
+  execsql {
+    SELECT test_function('sqlite')
+  }
+} {{UTF-8 sqlite}}
+db close
+sqlite3 db test.db; set DB [sqlite3_connection_pointer db]
+do_test enc2-6.2 {
+  add_test_function $DB 0 1 0
+  execsql {
+    SELECT test_function('sqlite')
+  }
+} {{UTF-16LE sqlite}}
+db close
+sqlite3 db test.db; set DB [sqlite3_connection_pointer db]
+do_test enc2-6.3 {
+  add_test_function $DB 0 0 1
+  execsql {
+    SELECT test_function('sqlite')
+  }
+} {{UTF-16BE sqlite}}
+
+db close
+forcedelete test.db
+sqlite3 db test.db; set DB [sqlite3_connection_pointer db]
+execsql {pragma encoding = 'UTF-16LE'}
+do_test enc2-6.3 {
+  execsql {
+    CREATE TABLE t5(a);
+    INSERT INTO t5 VALUES('sqlite');
+  }
+} {}
+do_test enc2-6.4 {
+  add_test_function $DB 1 1 1
+  execsql {
+    SELECT test_function('sqlite')
+  }
+} {{UTF-16LE sqlite}}
+db close
+sqlite3 db test.db; set DB [sqlite3_connection_pointer db]
+do_test enc2-6.5 {
+  add_test_function $DB 0 1 0
+  execsql {
+    SELECT test_function('sqlite')
+  }
+} {{UTF-16LE sqlite}}
+db close
+sqlite3 db test.db; set DB [sqlite3_connection_pointer db]
+do_test enc2-6.6 {
+  add_test_function $DB 0 0 1
+  execsql {
+    SELECT test_function('sqlite')
+  }
+} {{UTF-16BE sqlite}}
+
+db close
+forcedelete test.db
+sqlite3 db test.db; set DB [sqlite3_connection_pointer db]
+execsql {pragma encoding = 'UTF-16BE'}
+do_test enc2-6.7 {
+  execsql {
+    CREATE TABLE t5(a);
+    INSERT INTO t5 VALUES('sqlite');
+  }
+} {}
+do_test enc2-6.8 {
+  add_test_function $DB 1 1 1
+  execsql {
+    SELECT test_function('sqlite')
+  }
+} {{UTF-16BE sqlite}}
+db close
+sqlite3 db test.db; set DB [sqlite3_connection_pointer db]
+do_test enc2-6.9 {
+  add_test_function $DB 0 1 0
+  execsql {
+    SELECT test_function('sqlite')
+  }
+} {{UTF-16LE sqlite}}
+db close
+sqlite3 db test.db; set DB [sqlite3_connection_pointer db]
+do_test enc2-6.10 {
+  add_test_function $DB 0 0 1
+  execsql {
+    SELECT test_function('sqlite')
+  }
+} {{UTF-16BE sqlite}}
+
+
+db close
+forcedelete test.db
+
+# The following tests - enc2-7.* - function as follows:
+#
+# 1: Open an empty database file assuming UTF-16 encoding.
+# 2: Open the same database with a different handle assuming UTF-8. Create
+#    a table using this handle.
+# 3: Read the sqlite_master table from the first handle. 
+# 4: Ensure the first handle recognises the database encoding is UTF-8.
+#
+do_test enc2-7.1 {
+  sqlite3 db test.db
+  execsql {
+    PRAGMA encoding = 'UTF-16';
+    SELECT * FROM sqlite_master;
+  }
+} {}
+do_test enc2-7.2 {
+  set enc [execsql {
+    PRAGMA encoding;
+  }]
+  string range $enc 0 end-2 ;# Chop off the "le" or "be"
+} {UTF-16}
+do_test enc2-7.3 {
+  sqlite3 db2 test.db
+  execsql {
+    PRAGMA encoding = 'UTF-8';
+    CREATE TABLE abc(a, b, c);
+  } db2
+} {}
+do_test enc2-7.4 {
+  execsql {
+    SELECT * FROM sqlite_master;
+  }
+} "table abc abc [expr $AUTOVACUUM?3:2] {CREATE TABLE abc(a, b, c)}"
+do_test enc2-7.5 {
+  execsql {
+    PRAGMA encoding;
+  }
+} {UTF-8}
+
+db close
+db2 close
+
+proc utf16 {utf8} {
+  set utf16 [encoding convertto unicode $utf8]
+  append utf16 "\x00\x00"
+  return $utf16
+}
+ifcapable {complete} {
+  do_test enc2-8.1 {
+    sqlite3_complete16 [utf16 "SELECT * FROM t1;"]
+  } {1}
+  do_test enc2-8.2 {
+    sqlite3_complete16 [utf16 "SELECT * FROM"]
+  } {0}
+}
+
+# Test that the encoding of an empty database may still be set after the
+# (empty) schema has been initialized.
+forcedelete test.db
+do_test enc2-9.1 {
+  sqlite3 db test.db
+  execsql {
+    PRAGMA encoding = 'UTF-8';
+    PRAGMA encoding;
+  }
+} {UTF-8}
+do_test enc2-9.2 {
+  sqlite3 db test.db
+  execsql {
+    PRAGMA encoding = 'UTF-16le';
+    PRAGMA encoding;
+  }
+} {UTF-16le}
+do_test enc2-9.3 {
+  sqlite3 db test.db
+  execsql {
+    SELECT * FROM sqlite_master;
+    PRAGMA encoding = 'UTF-8';
+    PRAGMA encoding;
+  }
+} {UTF-8}
+do_test enc2-9.4 {
+  sqlite3 db test.db
+  execsql {
+    PRAGMA encoding = 'UTF-16le';
+    CREATE TABLE abc(a, b, c);
+    PRAGMA encoding;
+  }
+} {UTF-16le}
+do_test enc2-9.5 {
+  sqlite3 db test.db
+  execsql {
+    PRAGMA encoding = 'UTF-8';
+    PRAGMA encoding;
+  }
+} {UTF-16le}
+
+# Ticket #1987.
+# Disallow encoding changes once the encoding has been set.
+#
+do_test enc2-10.1 {
+  db close
+  forcedelete test.db test.db-journal
+  sqlite3 db test.db
+  db eval {
+    PRAGMA encoding=UTF16;
+    CREATE TABLE t1(a);
+    PRAGMA encoding=UTF8;
+    CREATE TABLE t2(b);
+  }
+  db close
+  sqlite3 db test.db
+  db eval {
+    SELECT name FROM sqlite_master
+  }
+} {t1 t2}
+
+# 2020-01-15 ticket a08879a4a476eea9
+# Do not allow a database connection encoding change unless *all*
+# attached databases are empty.
+#
+reset_db
+do_execsql_test enc2-11.10 {
+  PRAGMA encoding=UTF8;
+  CREATE TEMP TABLE t1(x);
+  INSERT INTO t1 VALUES('this is a test');
+  PRAGMA encoding=UTF16;
+  SELECT * FROM t1;
+} {{this is a test}}
+
+finish_test
diff --git a/test/enc3.test b/test/enc3.test
new file mode 100644
index 0000000000000000000000000000000000000000..c9d39cbf3a756ec1cb734204a4985966cb1279aa
--- /dev/null
+++ b/test/enc3.test
@@ -0,0 +1,107 @@
+# 2002 May 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. 
+#
+# The focus of this file is testing of the proper handling of conversions
+# to the native text representation.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable {utf16} {
+  do_test enc3-1.1 {
+    execsql {
+      PRAGMA encoding=utf16le;
+      PRAGMA encoding;
+    }
+  } {UTF-16le}
+}
+do_test enc3-1.2 {
+  execsql {
+    CREATE TABLE t1(x,y);
+    INSERT INTO t1 VALUES('abc''123',5);
+    SELECT * FROM t1
+  }
+} {abc'123 5}
+do_test enc3-1.3 {
+  execsql {
+    SELECT quote(x) || ' ' || quote(y) FROM t1
+  }
+} {{'abc''123' 5}}
+ifcapable {bloblit} {
+  do_test enc3-1.4 {
+    execsql {
+      DELETE FROM t1;
+      INSERT INTO t1 VALUES(x'616263646566',NULL);
+      SELECT * FROM t1
+    }
+  } {abcdef {}}
+  do_test enc3-1.5 {
+    execsql {
+      SELECT quote(x) || ' ' || quote(y) FROM t1
+    }
+  } {{X'616263646566' NULL}}
+}
+ifcapable {bloblit && utf16} {
+  do_test enc3-2.1 {
+    execsql {
+      PRAGMA encoding
+    }
+  } {UTF-16le}
+  do_test enc3-2.2 {
+    execsql {
+      CREATE TABLE t2(a);
+      INSERT INTO t2 VALUES(x'61006200630064006500');
+      SELECT CAST(a AS text) FROM t2 WHERE CAST(a AS text) LIKE 'abc%';
+    }
+  } {abcde}
+  do_test enc3-2.3 {
+    execsql {
+      SELECT CAST(x'61006200630064006500' AS text);
+    }
+  } {abcde}
+  do_test enc3-2.4 {
+    execsql {
+      SELECT rowid FROM t2
+       WHERE CAST(a AS text) LIKE CAST(x'610062002500' AS text);
+    }
+  } {1}
+}
+
+# Try to attach a database with a different encoding.
+#
+ifcapable {utf16 && shared_cache} {
+  db close
+  forcedelete test8.db test8.db-journal
+  set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
+  sqlite3 dbaux test8.db
+  sqlite3 db test.db
+  db eval {SELECT 1 FROM sqlite_master LIMIT 1}
+  do_test enc3-3.1 {
+    dbaux eval {
+      PRAGMA encoding='utf8';
+      CREATE TABLE t1(x);
+      PRAGMA encoding
+    }
+  } {UTF-8}
+  do_test enc3-3.2 {
+    catchsql {
+      ATTACH 'test.db' AS utf16;
+      SELECT 1 FROM utf16.sqlite_master LIMIT 1;
+    } dbaux
+  } {1 {attached databases must use the same text encoding as main database}}
+  dbaux close
+  forcedelete test8.db test8.db-journal
+  sqlite3_enable_shared_cache $::enable_shared_cache
+}
+
+finish_test
diff --git a/test/enc4.test b/test/enc4.test
new file mode 100644
index 0000000000000000000000000000000000000000..94869b6fb75050b9f23fdf7966eefda3cbe1207a
--- /dev/null
+++ b/test/enc4.test
@@ -0,0 +1,137 @@
+# 2010 Sept 29
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The focus of
+# this file is testing the SQLite routines used for converting between the
+# various suported unicode encodings (UTF-8, UTF-16, UTF-16le and
+# UTF-16be).
+#
+# $Id: enc4.test,v 1.0 2010/09/29 08:29:32 shaneh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If UTF16 support is disabled, ignore the tests in this file
+#
+ifcapable {!utf16} {
+  finish_test
+  return
+}
+
+db close
+
+# The three unicode encodings understood by SQLite.
+set encodings [list UTF-8 UTF-16le UTF-16be]
+
+# initial value to use in SELECT
+set inits [list 1 1.0 1. 1e0]
+
+# vals
+set vals [list\
+"922337203685477580792233720368547758079223372036854775807"\
+"100000000000000000000000000000000000000000000000000000000"\
+"1.0000000000000000000000000000000000000000000000000000000"\
+]
+
+set i 1
+foreach enc $encodings {
+
+  forcedelete test.db
+  sqlite3 db test.db
+  db eval "PRAGMA encoding = \"$enc\""
+
+  do_test enc4-$i.1 {
+    db eval {PRAGMA encoding}
+  } $enc
+
+  set j 1
+  foreach init $inits {
+
+    do_test enc4-$i.$j.2 {
+      set S [sqlite3_prepare_v2 db "SELECT $init+?" -1 dummy]
+      sqlite3_expired $S
+    } {0}
+      
+    set k 1
+    foreach val $vals {
+      for {set x 1} {$x<16} {incr x} {
+        set part [expr $init + [string range $val 0 [expr $x-1]]]
+
+        do_realnum_test enc4-$i.$j.$k.3.$x {
+          sqlite3_reset $S
+          sqlite3_bind_text $S 1 $val $x
+          sqlite3_step $S
+          sqlite3_column_text $S 0
+        } [list $part]
+        
+        do_realnum_test enc4-$i.$j.$k.4.$x {
+          sqlite3_reset $S
+          sqlite3_bind_text16 $S 1 [encoding convertto unicode $val] [expr $x*2]
+          sqlite3_step $S
+          sqlite3_column_text $S 0
+        } [list $part]
+      }
+      
+      incr k
+    }
+
+    do_test enc4-$i.$j.5 {
+      sqlite3_finalize $S
+    } {SQLITE_OK}
+
+    incr j
+  }
+
+  db close
+  incr i
+}
+
+forcedelete test.db
+sqlite3 db test.db
+
+do_test enc4-4.1 {
+  db eval "select 1+1."
+} {2.0}
+
+do_test enc4-4.2.1 {
+  set S [sqlite3_prepare_v2 db "SELECT 1+1." -1 dummy]
+  sqlite3_step $S
+  sqlite3_column_text $S 0
+} {2.0}
+
+do_test enc4-4.2.2 {
+  sqlite3_finalize $S
+} {SQLITE_OK}
+
+do_test enc4-4.3.1 {
+  set S [sqlite3_prepare_v2 db "SELECT 1+?" -1 dummy]
+  sqlite3_bind_text $S 1 "1." 2
+  sqlite3_step $S
+  sqlite3_column_text $S 0
+} {2.0}
+
+do_test enc4-4.3.2 {
+  sqlite3_finalize $S
+} {SQLITE_OK}
+
+do_test enc4-4.4.1 {
+  set S [sqlite3_prepare_v2 db "SELECT 1+?" -1 dummy]
+  sqlite3_bind_text $S 1 "1.0" 2
+  sqlite3_step $S
+  sqlite3_column_text $S 0
+} {2.0}
+
+do_test enc4-4.4.2 {
+  sqlite3_finalize $S
+} {SQLITE_OK}
+
+db close
+
+finish_test
diff --git a/test/eqp.test b/test/eqp.test
new file mode 100644
index 0000000000000000000000000000000000000000..5d2659be770a32130785feff735e4c65a525aad8
--- /dev/null
+++ b/test/eqp.test
@@ -0,0 +1,904 @@
+# 2010 November 6
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !compound {
+  finish_test
+  return
+}
+
+set testprefix eqp
+
+#-------------------------------------------------------------------------
+#
+# eqp-1.*:        Assorted tests.
+# eqp-2.*:        Tests for single select statements.
+# eqp-3.*:        Select statements that execute sub-selects.
+# eqp-4.*:        Compound select statements.
+# ...
+# eqp-7.*:        "SELECT count(*) FROM tbl" statements (VDBE code OP_Count).
+#
+
+proc det {args} { uplevel do_eqp_test $args }
+
+do_execsql_test 1.1 {
+  CREATE TABLE t1(a INT, b INT, ex TEXT);
+  CREATE INDEX i1 ON t1(a);
+  CREATE INDEX i2 ON t1(b);
+  CREATE TABLE t2(a INT, b INT, ex TEXT);
+  CREATE TABLE t3(a INT, b INT, ex TEXT);
+}
+
+do_eqp_test 1.2 {
+  SELECT * FROM t2, t1 WHERE t1.a=1 OR t1.b=2;
+} {
+  QUERY PLAN
+  |--MULTI-INDEX OR
+  |  |--INDEX 1
+  |  |  `--SEARCH t1 USING INDEX i1 (a=?)
+  |  `--INDEX 2
+  |     `--SEARCH t1 USING INDEX i2 (b=?)
+  `--SCAN t2
+}
+do_eqp_test 1.3 {
+  SELECT * FROM t2 CROSS JOIN t1 WHERE t1.a=1 OR t1.b=2;
+} {
+  QUERY PLAN
+  |--SCAN t2
+  `--MULTI-INDEX OR
+     |--INDEX 1
+     |  `--SEARCH t1 USING INDEX i1 (a=?)
+     `--INDEX 2
+        `--SEARCH t1 USING INDEX i2 (b=?)
+}
+do_eqp_test 1.3 {
+  SELECT a FROM t1 ORDER BY a
+} {
+  QUERY PLAN
+  `--SCAN t1 USING COVERING INDEX i1
+}
+do_eqp_test 1.4 {
+  SELECT a FROM t1 ORDER BY +a
+} {
+  QUERY PLAN
+  |--SCAN t1 USING COVERING INDEX i1
+  `--USE TEMP B-TREE FOR ORDER BY
+}
+do_eqp_test 1.5 {
+  SELECT a FROM t1 WHERE a=4
+} {
+  QUERY PLAN
+  `--SEARCH t1 USING COVERING INDEX i1 (a=?)
+}
+do_eqp_test 1.6 {
+  SELECT DISTINCT count(*) FROM t3 GROUP BY a;
+} {
+  QUERY PLAN
+  |--SCAN t3
+  |--USE TEMP B-TREE FOR GROUP BY
+  `--USE TEMP B-TREE FOR DISTINCT
+}
+
+do_eqp_test 1.7.1 {
+  SELECT * FROM t3 JOIN (SELECT 1)
+} {
+  QUERY PLAN
+  |--CO-ROUTINE (subquery-xxxxxx)
+  |  `--SCAN CONSTANT ROW
+  |--SCAN (subquery-xxxxxx)
+  `--SCAN t3
+}
+do_eqp_test 1.7.2 {
+  SELECT * FROM t3 JOIN (SELECT 1) AS v1
+} {
+  QUERY PLAN
+  |--CO-ROUTINE v1
+  |  `--SCAN CONSTANT ROW
+  |--SCAN v1
+  `--SCAN t3
+}
+do_eqp_test 1.7.3 {
+  SELECT * FROM t3 AS xx JOIN (SELECT 1) AS yy
+} {
+  QUERY PLAN
+  |--CO-ROUTINE yy
+  |  `--SCAN CONSTANT ROW
+  |--SCAN yy
+  `--SCAN xx
+}
+
+
+do_eqp_test 1.8 {
+  SELECT * FROM t3 JOIN (SELECT 1 UNION SELECT 2)
+} {
+  QUERY PLAN
+  |--CO-ROUTINE (subquery-xxxxxx)
+  |  `--COMPOUND QUERY
+  |     |--LEFT-MOST SUBQUERY
+  |     |  `--SCAN CONSTANT ROW
+  |     `--UNION USING TEMP B-TREE
+  |        `--SCAN CONSTANT ROW
+  |--SCAN (subquery-xxxxxx)
+  `--SCAN t3
+}
+do_eqp_test 1.9 {
+  SELECT * FROM t3 JOIN (SELECT 1 EXCEPT SELECT a FROM t3 LIMIT 17) AS abc
+} {
+  QUERY PLAN
+  |--CO-ROUTINE abc
+  |  `--COMPOUND QUERY
+  |     |--LEFT-MOST SUBQUERY
+  |     |  `--SCAN CONSTANT ROW
+  |     `--EXCEPT USING TEMP B-TREE
+  |        `--SCAN t3
+  |--SCAN abc
+  `--SCAN t3
+}
+do_eqp_test 1.10 {
+  SELECT * FROM t3 JOIN (SELECT 1 INTERSECT SELECT a FROM t3 LIMIT 17) AS abc
+} {
+  QUERY PLAN
+  |--CO-ROUTINE abc
+  |  `--COMPOUND QUERY
+  |     |--LEFT-MOST SUBQUERY
+  |     |  `--SCAN CONSTANT ROW
+  |     `--INTERSECT USING TEMP B-TREE
+  |        `--SCAN t3
+  |--SCAN abc
+  `--SCAN t3
+}
+
+do_eqp_test 1.11 {
+  SELECT * FROM t3 JOIN (SELECT 1 UNION ALL SELECT a FROM t3 LIMIT 17) abc
+} {
+  QUERY PLAN
+  |--CO-ROUTINE abc
+  |  `--COMPOUND QUERY
+  |     |--LEFT-MOST SUBQUERY
+  |     |  `--SCAN CONSTANT ROW
+  |     `--UNION ALL
+  |        `--SCAN t3
+  |--SCAN abc
+  `--SCAN t3
+}
+
+#-------------------------------------------------------------------------
+# Test cases eqp-2.* - tests for single select statements.
+#
+drop_all_tables
+do_execsql_test 2.1 {
+  CREATE TABLE t1(x INT, y INT, ex TEXT);
+
+  CREATE TABLE t2(x INT, y INT, ex TEXT);
+  CREATE INDEX t2i1 ON t2(x);
+}
+
+det 2.2.1 "SELECT DISTINCT min(x), max(x) FROM t1 GROUP BY x ORDER BY 1" {
+  QUERY PLAN
+  |--SCAN t1
+  |--USE TEMP B-TREE FOR GROUP BY
+  |--USE TEMP B-TREE FOR DISTINCT
+  `--USE TEMP B-TREE FOR ORDER BY
+}
+det 2.2.2 "SELECT DISTINCT min(x), max(x) FROM t2 GROUP BY x ORDER BY 1" {
+  QUERY PLAN
+  |--SCAN t2 USING COVERING INDEX t2i1
+  |--USE TEMP B-TREE FOR DISTINCT
+  `--USE TEMP B-TREE FOR ORDER BY
+}
+det 2.2.3 "SELECT DISTINCT * FROM t1" {
+  QUERY PLAN
+  |--SCAN t1
+  `--USE TEMP B-TREE FOR DISTINCT
+}
+det 2.2.4 "SELECT DISTINCT * FROM t1, t2" {
+  QUERY PLAN
+  |--SCAN t1
+  |--SCAN t2
+  `--USE TEMP B-TREE FOR DISTINCT
+}
+det 2.2.5 "SELECT DISTINCT * FROM t1, t2 ORDER BY t1.x" {
+  QUERY PLAN
+  |--SCAN t1
+  |--SCAN t2
+  |--USE TEMP B-TREE FOR DISTINCT
+  `--USE TEMP B-TREE FOR ORDER BY
+}
+det 2.2.6 "SELECT DISTINCT t2.x FROM t1, t2 ORDER BY t2.x" {
+  QUERY PLAN
+  |--SCAN t2 USING COVERING INDEX t2i1
+  `--SCAN t1
+}
+
+det 2.3.1 "SELECT max(x) FROM t2" {
+  QUERY PLAN
+  `--SEARCH t2 USING COVERING INDEX t2i1
+}
+det 2.3.2 "SELECT min(x) FROM t2" {
+  QUERY PLAN
+  `--SEARCH t2 USING COVERING INDEX t2i1
+}
+det 2.3.3 "SELECT min(x), max(x) FROM t2" {
+  QUERY PLAN
+  `--SCAN t2 USING COVERING INDEX t2i1
+}
+
+det 2.4.1 "SELECT * FROM t1 WHERE rowid=?" {
+  QUERY PLAN
+  `--SEARCH t1 USING INTEGER PRIMARY KEY (rowid=?)
+}
+
+
+
+#-------------------------------------------------------------------------
+# Test cases eqp-3.* - tests for select statements that use sub-selects.
+#
+do_eqp_test 3.1.1 {
+  SELECT (SELECT x FROM t1 AS sub) FROM t1;
+} {
+  QUERY PLAN
+  |--SCAN t1
+  `--SCALAR SUBQUERY xxxxxx
+     `--SCAN sub
+}
+do_eqp_test 3.1.2 {
+  SELECT * FROM t1 WHERE (SELECT x FROM t1 AS sub);
+} {
+  QUERY PLAN
+  |--SCAN t1
+  `--SCALAR SUBQUERY xxxxxx
+     `--SCAN sub
+}
+do_eqp_test 3.1.3 {
+  SELECT * FROM t1 WHERE (SELECT x FROM t1 AS sub ORDER BY y);
+} {
+  QUERY PLAN
+  |--SCAN t1
+  `--SCALAR SUBQUERY xxxxxx
+     |--SCAN sub
+     `--USE TEMP B-TREE FOR ORDER BY
+}
+do_eqp_test 3.1.4 {
+  SELECT * FROM t1 WHERE (SELECT x FROM t2 ORDER BY x);
+} {
+  QUERY PLAN
+  |--SCAN t1
+  `--SCALAR SUBQUERY xxxxxx
+     `--SCAN t2 USING COVERING INDEX t2i1
+}
+
+det 3.2.1 {
+  SELECT * FROM (SELECT * FROM t1 ORDER BY x LIMIT 10) ORDER BY y LIMIT 5
+} {
+  QUERY PLAN
+  |--CO-ROUTINE (subquery-xxxxxx)
+  |  |--SCAN t1
+  |  `--USE TEMP B-TREE FOR ORDER BY
+  |--SCAN (subquery-xxxxxx)
+  `--USE TEMP B-TREE FOR ORDER BY
+}
+
+det 3.2.2 {
+  SELECT * FROM 
+    (SELECT * FROM t1 ORDER BY x LIMIT 10) AS x1,
+    (SELECT * FROM t2 ORDER BY x LIMIT 10) AS x2
+  ORDER BY x2.y LIMIT 5
+} {
+  QUERY PLAN
+  |--CO-ROUTINE x1
+  |  |--SCAN t1
+  |  `--USE TEMP B-TREE FOR ORDER BY
+  |--MATERIALIZE x2
+  |  `--SCAN t2 USING INDEX t2i1
+  |--SCAN x1
+  |--SCAN x2
+  `--USE TEMP B-TREE FOR ORDER BY
+}
+
+det 3.2.3 {
+  SELECT * FROM (SELECT * FROM t1 ORDER BY x LIMIT 10) ORDER BY x LIMIT 5
+} {
+  QUERY PLAN
+  |--CO-ROUTINE (subquery-xxxxxx)
+  |  |--SCAN t1
+  |  `--USE TEMP B-TREE FOR ORDER BY
+  `--SCAN (subquery-xxxxxx)
+}
+
+det 3.3.1 {
+  SELECT * FROM t1 WHERE y IN (SELECT y FROM t2)
+} {
+  QUERY PLAN
+  |--SCAN t1
+  `--LIST SUBQUERY xxxxxx
+     |--SCAN t2
+     `--CREATE BLOOM FILTER
+}
+det 3.3.2 {
+  SELECT * FROM t1 WHERE y IN (SELECT y FROM t2 WHERE t1.x!=t2.x)
+} {
+  QUERY PLAN
+  |--SCAN t1
+  `--CORRELATED LIST SUBQUERY xxxxxx
+     `--SCAN t2
+}
+det 3.3.3 {
+  SELECT * FROM t1 WHERE EXISTS (SELECT y FROM t2 WHERE t1.x!=t2.x)
+} {
+  QUERY PLAN
+  |--SCAN t1
+  `--CORRELATED SCALAR SUBQUERY xxxxxx
+     `--SCAN t2
+}
+
+#-------------------------------------------------------------------------
+# Test cases eqp-4.* - tests for composite select statements.
+#
+do_eqp_test 4.1.1 {
+  SELECT * FROM t1 UNION ALL SELECT * FROM t2
+} {
+  QUERY PLAN
+  `--COMPOUND QUERY
+     |--LEFT-MOST SUBQUERY
+     |  `--SCAN t1
+     `--UNION ALL
+        `--SCAN t2
+}
+do_eqp_test 4.1.2 {
+  SELECT * FROM t1 UNION ALL SELECT * FROM t2 ORDER BY 2
+} {
+  QUERY PLAN
+  `--MERGE (UNION ALL)
+     |--LEFT
+     |  |--SCAN t1
+     |  `--USE TEMP B-TREE FOR ORDER BY
+     `--RIGHT
+        |--SCAN t2
+        `--USE TEMP B-TREE FOR ORDER BY
+}
+do_eqp_test 4.1.3 {
+  SELECT * FROM t1 UNION SELECT * FROM t2 ORDER BY 2
+} {
+  QUERY PLAN
+  `--MERGE (UNION)
+     |--LEFT
+     |  |--SCAN t1
+     |  `--USE TEMP B-TREE FOR ORDER BY
+     `--RIGHT
+        |--SCAN t2
+        `--USE TEMP B-TREE FOR ORDER BY
+}
+do_eqp_test 4.1.4 {
+  SELECT * FROM t1 INTERSECT SELECT * FROM t2 ORDER BY 2
+} {
+  QUERY PLAN
+  `--MERGE (INTERSECT)
+     |--LEFT
+     |  |--SCAN t1
+     |  `--USE TEMP B-TREE FOR ORDER BY
+     `--RIGHT
+        |--SCAN t2
+        `--USE TEMP B-TREE FOR ORDER BY
+}
+do_eqp_test 4.1.5 {
+  SELECT * FROM t1 EXCEPT SELECT * FROM t2 ORDER BY 2
+} {
+  QUERY PLAN
+  `--MERGE (EXCEPT)
+     |--LEFT
+     |  |--SCAN t1
+     |  `--USE TEMP B-TREE FOR ORDER BY
+     `--RIGHT
+        |--SCAN t2
+        `--USE TEMP B-TREE FOR ORDER BY
+}
+
+do_eqp_test 4.2.2 {
+  SELECT * FROM t1 UNION ALL SELECT * FROM t2 ORDER BY 1
+} {
+  QUERY PLAN
+  `--MERGE (UNION ALL)
+     |--LEFT
+     |  |--SCAN t1
+     |  `--USE TEMP B-TREE FOR ORDER BY
+     `--RIGHT
+        `--SCAN t2 USING INDEX t2i1
+}
+do_eqp_test 4.2.3 {
+  SELECT * FROM t1 UNION SELECT * FROM t2 ORDER BY 1
+} {
+  QUERY PLAN
+  `--MERGE (UNION)
+     |--LEFT
+     |  |--SCAN t1
+     |  `--USE TEMP B-TREE FOR ORDER BY
+     `--RIGHT
+        |--SCAN t2 USING INDEX t2i1
+        `--USE TEMP B-TREE FOR LAST 2 TERMS OF ORDER BY
+}
+do_eqp_test 4.2.4 {
+  SELECT * FROM t1 INTERSECT SELECT * FROM t2 ORDER BY 1
+} {
+  QUERY PLAN
+  `--MERGE (INTERSECT)
+     |--LEFT
+     |  |--SCAN t1
+     |  `--USE TEMP B-TREE FOR ORDER BY
+     `--RIGHT
+        |--SCAN t2 USING INDEX t2i1
+        `--USE TEMP B-TREE FOR LAST 2 TERMS OF ORDER BY
+}
+do_eqp_test 4.2.5 {
+  SELECT * FROM t1 EXCEPT SELECT * FROM t2 ORDER BY 1
+} {
+  QUERY PLAN
+  `--MERGE (EXCEPT)
+     |--LEFT
+     |  |--SCAN t1
+     |  `--USE TEMP B-TREE FOR ORDER BY
+     `--RIGHT
+        |--SCAN t2 USING INDEX t2i1
+        `--USE TEMP B-TREE FOR LAST 2 TERMS OF ORDER BY
+}
+
+do_eqp_test 4.3.1 {
+  SELECT x FROM t1 UNION SELECT x FROM t2
+} {
+  QUERY PLAN
+  `--COMPOUND QUERY
+     |--LEFT-MOST SUBQUERY
+     |  `--SCAN t1
+     `--UNION USING TEMP B-TREE
+        `--SCAN t2 USING COVERING INDEX t2i1
+}
+
+do_eqp_test 4.3.2 {
+  SELECT x FROM t1 UNION SELECT x FROM t2 UNION SELECT x FROM t1
+} {
+  QUERY PLAN
+  `--COMPOUND QUERY
+     |--LEFT-MOST SUBQUERY
+     |  `--SCAN t1
+     |--UNION USING TEMP B-TREE
+     |  `--SCAN t2 USING COVERING INDEX t2i1
+     `--UNION USING TEMP B-TREE
+        `--SCAN t1
+}
+do_eqp_test 4.3.3 {
+  SELECT x FROM t1 UNION SELECT x FROM t2 UNION SELECT x FROM t1 ORDER BY 1
+} {
+  QUERY PLAN
+  `--MERGE (UNION)
+     |--LEFT
+     |  `--MERGE (UNION)
+     |     |--LEFT
+     |     |  |--SCAN t1
+     |     |  `--USE TEMP B-TREE FOR ORDER BY
+     |     `--RIGHT
+     |        `--SCAN t2 USING COVERING INDEX t2i1
+     `--RIGHT
+        |--SCAN t1
+        `--USE TEMP B-TREE FOR ORDER BY
+}
+
+if 0 {
+#-------------------------------------------------------------------------
+# This next block of tests verifies that the examples on the 
+# lang_explain.html page are correct.
+#
+drop_all_tables
+
+# XVIDENCE-OF: R-47779-47605 sqlite> EXPLAIN QUERY PLAN SELECT a, b
+# FROM t1 WHERE a=1;
+# 0|0|0|SCAN t1
+#
+do_execsql_test 5.1.0 { CREATE TABLE t1(a INT, b INT, ex TEXT) }
+det 5.1.1 "SELECT a, b FROM t1 WHERE a=1" {
+  0 0 0 {SCAN t1}
+}
+
+# XVIDENCE-OF: R-55852-17599 sqlite> CREATE INDEX i1 ON t1(a);
+# sqlite> EXPLAIN QUERY PLAN SELECT a, b FROM t1 WHERE a=1;
+# 0|0|0|SEARCH t1 USING INDEX i1
+#
+do_execsql_test 5.2.0 { CREATE INDEX i1 ON t1(a) }
+det 5.2.1 "SELECT a, b FROM t1 WHERE a=1" {
+  0 0 0 {SEARCH t1 USING INDEX i1 (a=?)}
+}
+
+# XVIDENCE-OF: R-21179-11011 sqlite> CREATE INDEX i2 ON t1(a, b);
+# sqlite> EXPLAIN QUERY PLAN SELECT a, b FROM t1 WHERE a=1;
+# 0|0|0|SEARCH t1 USING COVERING INDEX i2 (a=?)
+#
+do_execsql_test 5.3.0 { CREATE INDEX i2 ON t1(a, b) }
+det 5.3.1 "SELECT a, b FROM t1 WHERE a=1" {
+  0 0 0 {SEARCH t1 USING COVERING INDEX i2 (a=?)}
+}
+
+# XVIDENCE-OF: R-09991-48941 sqlite> EXPLAIN QUERY PLAN
+# SELECT t1.*, t2.* FROM t1, t2 WHERE t1.a=1 AND t1.b>2;
+# 0|0|0|SEARCH t1 USING COVERING INDEX i2 (a=? AND b>?)
+# 0|1|1|SCAN t2
+#
+do_execsql_test 5.4.0 {CREATE TABLE t2(c INT, d INT, ex TEXT)}
+det 5.4.1 "SELECT t1.a, t2.c FROM t1, t2 WHERE t1.a=1 AND t1.b>2" {
+  0 0 0 {SEARCH t1 USING COVERING INDEX i2 (a=? AND b>?)}
+  0 1 1 {SCAN t2}
+}
+
+# XVIDENCE-OF: R-33626-61085 sqlite> EXPLAIN QUERY PLAN
+# SELECT t1.*, t2.* FROM t2, t1 WHERE t1.a=1 AND t1.b>2;
+# 0|0|1|SEARCH t1 USING COVERING INDEX i2 (a=? AND b>?)
+# 0|1|0|SCAN t2
+#
+det 5.5 "SELECT t1.a, t2.c FROM t2, t1 WHERE t1.a=1 AND t1.b>2" {
+  0 0 1 {SEARCH t1 USING COVERING INDEX i2 (a=? AND b>?)}
+  0 1 0 {SCAN t2}
+}
+
+# XVIDENCE-OF: R-04002-25654 sqlite> CREATE INDEX i3 ON t1(b);
+# sqlite> EXPLAIN QUERY PLAN SELECT * FROM t1 WHERE a=1 OR b=2;
+# 0|0|0|SEARCH t1 USING COVERING INDEX i2 (a=?)
+# 0|0|0|SEARCH t1 USING INDEX i3 (b=?)
+#
+do_execsql_test 5.5.0 {CREATE INDEX i3 ON t1(b)}
+det 5.6.1 "SELECT a, b FROM t1 WHERE a=1 OR b=2" {
+  0 0 0 {SEARCH t1 USING COVERING INDEX i2 (a=?)}
+  0 0 0 {SEARCH t1 USING INDEX i3 (b=?)}
+}
+
+# XVIDENCE-OF: R-24577-38891 sqlite> EXPLAIN QUERY PLAN
+# SELECT c, d FROM t2 ORDER BY c;
+# 0|0|0|SCAN t2
+# 0|0|0|USE TEMP B-TREE FOR ORDER BY
+#
+det 5.7 "SELECT c, d FROM t2 ORDER BY c" {
+  0 0 0 {SCAN t2}
+  0 0 0 {USE TEMP B-TREE FOR ORDER BY}
+}
+
+# XVIDENCE-OF: R-58157-12355 sqlite> CREATE INDEX i4 ON t2(c);
+# sqlite> EXPLAIN QUERY PLAN SELECT c, d FROM t2 ORDER BY c;
+# 0|0|0|SCAN t2 USING INDEX i4
+#
+do_execsql_test 5.8.0 {CREATE INDEX i4 ON t2(c)}
+det 5.8.1 "SELECT c, d FROM t2 ORDER BY c" {
+  0 0 0 {SCAN t2 USING INDEX i4}
+}
+
+# XVIDENCE-OF: R-13931-10421 sqlite> EXPLAIN QUERY PLAN SELECT
+# (SELECT b FROM t1 WHERE a=0), (SELECT a FROM t1 WHERE b=t2.c) FROM t2;
+# 0|0|0|SCAN t2
+# 0|0|0|EXECUTE SCALAR SUBQUERY 1
+# 1|0|0|SEARCH t1 USING COVERING INDEX i2 (a=?)
+# 0|0|0|EXECUTE CORRELATED SCALAR SUBQUERY 2
+# 2|0|0|SEARCH t1 USING INDEX i3 (b=?)
+#
+det 5.9 {
+  SELECT (SELECT b FROM t1 WHERE a=0), (SELECT a FROM t1 WHERE b=t2.c) FROM t2
+} {
+  0 0 0 {SCAN t2 USING COVERING INDEX i4}
+  0 0 0 {EXECUTE SCALAR SUBQUERY 1}
+  1 0 0 {SEARCH t1 USING COVERING INDEX i2 (a=?)}
+  0 0 0 {EXECUTE CORRELATED SCALAR SUBQUERY 2}
+  2 0 0 {SEARCH t1 USING INDEX i3 (b=?)}
+}
+
+# XVIDENCE-OF: R-50892-45943 sqlite> EXPLAIN QUERY PLAN
+# SELECT count(*) FROM (SELECT max(b) AS x FROM t1 GROUP BY a) GROUP BY x;
+# 1|0|0|SCAN t1 USING COVERING INDEX i2
+# 0|0|0|SCAN SUBQUERY 1
+# 0|0|0|USE TEMP B-TREE FOR GROUP BY
+#
+det 5.10 {
+  SELECT count(*) FROM (SELECT max(b) AS x FROM t1 GROUP BY a) GROUP BY x
+} {
+  1 0 0 {SCAN t1 USING COVERING INDEX i2}
+  0 0 0 {SCAN SUBQUERY 1}
+  0 0 0 {USE TEMP B-TREE FOR GROUP BY}
+}
+
+# XVIDENCE-OF: R-46219-33846 sqlite> EXPLAIN QUERY PLAN
+# SELECT * FROM (SELECT * FROM t2 WHERE c=1), t1;
+# 0|0|0|SEARCH t2 USING INDEX i4 (c=?)
+# 0|1|1|SCAN t1
+#
+det 5.11 "SELECT a, b FROM (SELECT * FROM t2 WHERE c=1), t1" {
+  0 0 0 {SEARCH t2 USING INDEX i4 (c=?)}
+  0 1 1 {SCAN t1 USING COVERING INDEX i2}
+}
+
+# XVIDENCE-OF: R-37879-39987 sqlite> EXPLAIN QUERY PLAN
+# SELECT a FROM t1 UNION SELECT c FROM t2;
+# 1|0|0|SCAN t1
+# 2|0|0|SCAN t2
+# 0|0|0|COMPOUND SUBQUERIES 1 AND 2 USING TEMP B-TREE (UNION)
+#
+det 5.12 "SELECT a,b FROM t1 UNION SELECT c, 99 FROM t2" {
+  1 0 0 {SCAN t1 USING COVERING INDEX i2}
+  2 0 0 {SCAN t2 USING COVERING INDEX i4}
+  0 0 0 {COMPOUND SUBQUERIES 1 AND 2 USING TEMP B-TREE (UNION)}
+}
+
+# XVIDENCE-OF: R-44864-63011 sqlite> EXPLAIN QUERY PLAN
+# SELECT a FROM t1 EXCEPT SELECT d FROM t2 ORDER BY 1;
+# 1|0|0|SCAN t1 USING COVERING INDEX i2
+# 2|0|0|SCAN t2 2|0|0|USE TEMP B-TREE FOR ORDER BY
+# 0|0|0|COMPOUND SUBQUERIES 1 AND 2 (EXCEPT)
+#
+det 5.13 "SELECT a FROM t1 EXCEPT SELECT d FROM t2 ORDER BY 1" {
+  1 0 0 {SCAN t1 USING COVERING INDEX i1}
+  2 0 0 {SCAN t2}
+  2 0 0 {USE TEMP B-TREE FOR ORDER BY}
+  0 0 0 {COMPOUND SUBQUERIES 1 AND 2 (EXCEPT)}
+}
+
+if {![nonzero_reserved_bytes]} {
+  #-------------------------------------------------------------------------
+  # The following tests - eqp-6.* - test that the example C code on 
+  # documentation page eqp.html works. The C code is duplicated in test1.c
+  # and wrapped in Tcl command [print_explain_query_plan] 
+  #
+  set boilerplate {
+    proc explain_query_plan {db sql} {
+      set stmt [sqlite3_prepare_v2 db $sql -1 DUMMY]
+      print_explain_query_plan $stmt
+      sqlite3_finalize $stmt
+    }
+    sqlite3 db test.db
+    explain_query_plan db {%SQL%}
+    db close
+    exit
+  }
+  
+  # Do a "Print Explain Query Plan" test.
+  proc do_peqp_test {tn sql res} {
+    set fd [open script.tcl w]
+    puts $fd [string map [list %SQL% $sql] $::boilerplate]
+    close $fd
+  
+    uplevel do_test $tn [list {
+      set fd [open "|[info nameofexec] script.tcl"]
+      set data [read $fd]
+      close $fd
+      set data
+    }] [list $res]
+  }
+  
+  do_peqp_test 6.1 {
+    SELECT a, b FROM t1 EXCEPT SELECT d, 99 FROM t2 ORDER BY 1
+  } [string trimleft {
+1 0 0 SCAN t1 USING COVERING INDEX i2
+2 0 0 SCAN t2
+2 0 0 USE TEMP B-TREE FOR ORDER BY
+0 0 0 COMPOUND SUBQUERIES 1 AND 2 (EXCEPT)
+}]
+}
+}
+
+#-------------------------------------------------------------------------
+# The following tests - eqp-7.* - test that queries that use the OP_Count
+# optimization return something sensible with EQP.
+#
+drop_all_tables
+
+do_execsql_test 7.0 {
+  CREATE TABLE t1(a INT, b INT, ex CHAR(100));
+  CREATE TABLE t2(a INT, b INT, ex CHAR(100));
+  CREATE INDEX i1 ON t2(a);
+}
+
+det 7.1 "SELECT count(*) FROM t1" {
+  QUERY PLAN
+  `--SCAN t1
+}
+
+det 7.2 "SELECT count(*) FROM t2" {
+  QUERY PLAN
+  `--SCAN t2 USING COVERING INDEX i1
+}
+
+do_execsql_test 7.3 {
+  INSERT INTO t1(a,b) VALUES(1, 2);
+  INSERT INTO t1(a,b) VALUES(3, 4);
+
+  INSERT INTO t2(a,b) VALUES(1, 2);
+  INSERT INTO t2(a,b) VALUES(3, 4);
+  INSERT INTO t2(a,b) VALUES(5, 6);
+ 
+  ANALYZE;
+}
+
+db close
+sqlite3 db test.db
+
+det 7.4 "SELECT count(*) FROM t1" {
+  QUERY PLAN
+  `--SCAN t1
+}
+
+det 7.5 "SELECT count(*) FROM t2" {
+  QUERY PLAN
+  `--SCAN t2 USING COVERING INDEX i1
+}
+
+#-------------------------------------------------------------------------
+# The following tests - eqp-8.* - test that queries that use the OP_Count
+# optimization return something sensible with EQP.
+#
+drop_all_tables
+
+do_execsql_test 8.0 {
+  CREATE TABLE t1(a, b, c, PRIMARY KEY(b, c)) WITHOUT ROWID;
+  CREATE TABLE t2(a, b, c);
+}
+
+det 8.1.1 "SELECT * FROM t2" {
+  QUERY PLAN
+  `--SCAN t2
+}
+
+det 8.1.2 "SELECT * FROM t2 WHERE rowid=?" {
+  QUERY PLAN
+  `--SEARCH t2 USING INTEGER PRIMARY KEY (rowid=?)
+}
+
+det 8.1.3 "SELECT count(*) FROM t2" {
+  QUERY PLAN
+  `--SCAN t2
+}
+
+det 8.2.1 "SELECT * FROM t1" {
+  QUERY PLAN
+  `--SCAN t1
+}
+
+det 8.2.2 "SELECT * FROM t1 WHERE b=?" {
+  QUERY PLAN
+  `--SEARCH t1 USING PRIMARY KEY (b=?)
+}
+
+det 8.2.3 "SELECT * FROM t1 WHERE b=? AND c=?" {
+  QUERY PLAN
+  `--SEARCH t1 USING PRIMARY KEY (b=? AND c=?)
+}
+
+det 8.2.4 "SELECT count(*) FROM t1" {
+  QUERY PLAN
+  `--SCAN t1
+}
+
+# 2018-08-16:  While working on Fossil I discovered that EXPLAIN QUERY PLAN
+# did not describe IN operators implemented using a ROWID lookup.  These
+# test cases ensure that problem as been fixed.
+#
+do_execsql_test 9.0 {
+  -- Schema from Fossil 2018-08-16
+  CREATE TABLE forumpost(
+    fpid INTEGER PRIMARY KEY,
+    froot INT,
+    fprev INT,
+    firt INT,
+    fmtime REAL
+  );
+  CREATE INDEX forumthread ON forumpost(froot,fmtime);
+  CREATE TABLE blob(
+    rid INTEGER PRIMARY KEY,
+    rcvid INTEGER,
+    size INTEGER,
+    uuid TEXT UNIQUE NOT NULL,
+    content BLOB,
+    CHECK( length(uuid)>=40 AND rid>0 )
+  );
+  CREATE TABLE event(
+    type TEXT,
+    mtime DATETIME,
+    objid INTEGER PRIMARY KEY,
+    tagid INTEGER,
+    uid INTEGER REFERENCES user,
+    bgcolor TEXT,
+    euser TEXT,
+    user TEXT,
+    ecomment TEXT,
+    comment TEXT,
+    brief TEXT,
+    omtime DATETIME
+  );
+  CREATE INDEX event_i1 ON event(mtime);
+  CREATE TABLE private(rid INTEGER PRIMARY KEY);
+}
+optimization_control db order-by-subquery off
+do_eqp_test 9.1 {
+  WITH thread(age,duration,cnt,root,last) AS (
+    SELECT
+      julianday('now') - max(fmtime) AS age,
+      max(fmtime) - min(fmtime) AS duration,
+      sum(fprev IS NULL) AS msg_count,
+      froot,
+      (SELECT fpid FROM forumpost
+        WHERE froot=x.froot
+          AND fpid NOT IN private
+        ORDER BY fmtime DESC LIMIT 1)
+    FROM forumpost AS x
+    WHERE fpid NOT IN private  --- Ensure this table mentioned in EQP output!
+    GROUP BY froot
+    ORDER BY 1 LIMIT 26 OFFSET 5
+  )
+  SELECT
+    thread.age,
+    thread.duration,
+    thread.cnt,
+    blob.uuid,
+    substr(event.comment,instr(event.comment,':')+1)
+  FROM thread, blob, event
+  WHERE blob.rid=thread.last
+    AND event.objid=thread.last
+  ORDER BY 1;
+} {
+  QUERY PLAN
+  |--CO-ROUTINE thread
+  |  |--SCAN x USING INDEX forumthread
+  |  |--USING ROWID SEARCH ON TABLE private FOR IN-OPERATOR
+  |  |--CORRELATED SCALAR SUBQUERY xxxxxx
+  |  |  |--SEARCH forumpost USING COVERING INDEX forumthread (froot=?)
+  |  |  `--USING ROWID SEARCH ON TABLE private FOR IN-OPERATOR
+  |  `--USE TEMP B-TREE FOR ORDER BY
+  |--SCAN thread
+  |--SEARCH blob USING INTEGER PRIMARY KEY (rowid=?)
+  |--SEARCH event USING INTEGER PRIMARY KEY (rowid=?)
+  `--USE TEMP B-TREE FOR ORDER BY
+}
+optimization_control db all on
+db cache flush
+do_eqp_test 9.2 {
+  WITH thread(age,duration,cnt,root,last) AS (
+    SELECT
+      julianday('now') - max(fmtime) AS age,
+      max(fmtime) - min(fmtime) AS duration,
+      sum(fprev IS NULL) AS msg_count,
+      froot,
+      (SELECT fpid FROM forumpost
+        WHERE froot=x.froot
+          AND fpid NOT IN private
+        ORDER BY fmtime DESC LIMIT 1)
+    FROM forumpost AS x
+    WHERE fpid NOT IN private  --- Ensure this table mentioned in EQP output!
+    GROUP BY froot
+    ORDER BY 1 LIMIT 26 OFFSET 5
+  )
+  SELECT
+    thread.age,
+    thread.duration,
+    thread.cnt,
+    blob.uuid,
+    substr(event.comment,instr(event.comment,':')+1)
+  FROM thread, blob, event
+  WHERE blob.rid=thread.last
+    AND event.objid=thread.last
+  ORDER BY 1;
+} {
+  QUERY PLAN
+  |--CO-ROUTINE thread
+  |  |--SCAN x USING INDEX forumthread
+  |  |--USING ROWID SEARCH ON TABLE private FOR IN-OPERATOR
+  |  |--CORRELATED SCALAR SUBQUERY xxxxxx
+  |  |  |--SEARCH forumpost USING COVERING INDEX forumthread (froot=?)
+  |  |  `--USING ROWID SEARCH ON TABLE private FOR IN-OPERATOR
+  |  `--USE TEMP B-TREE FOR ORDER BY
+  |--SCAN thread
+  |--SEARCH blob USING INTEGER PRIMARY KEY (rowid=?)
+  `--SEARCH event USING INTEGER PRIMARY KEY (rowid=?)
+}
+
+finish_test
diff --git a/test/eqp2.test b/test/eqp2.test
new file mode 100644
index 0000000000000000000000000000000000000000..3c634fc28a96f17b6374a34000d4f4ae2a2240b5
--- /dev/null
+++ b/test/eqp2.test
@@ -0,0 +1,49 @@
+# 2024 March 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+set testprefix eqp2
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b, c, d);
+  CREATE INDEX i1 ON t1(a, b, c);
+}
+
+do_eqp_test 1.1 {
+  SELECT * FROM t1 ORDER BY a, b, c
+} {
+  QUERY PLAN
+  `--SCAN t1 USING INDEX i1
+}
+
+
+do_eqp_test 1.2 {
+  SELECT * FROM t1 ORDER BY a, b, +c
+} {
+  QUERY PLAN
+  |--SCAN t1 USING INDEX i1
+  `--USE TEMP B-TREE FOR LAST TERM OF ORDER BY
+}
+
+do_eqp_test 1.3 {
+  SELECT * FROM t1 ORDER BY a, +b, +c
+} {
+  QUERY PLAN
+  |--SCAN t1 USING INDEX i1
+  `--USE TEMP B-TREE FOR LAST 2 TERMS OF ORDER BY
+}
+
+finish_test
+
+
diff --git a/test/errmsg.test b/test/errmsg.test
new file mode 100644
index 0000000000000000000000000000000000000000..f32da59a391d48243ebbf7ee01c3f7f1ae68b01c
--- /dev/null
+++ b/test/errmsg.test
@@ -0,0 +1,118 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# Test that if sqlite3_prepare_v2() is used to prepare a query, the
+# error-message associated with an sqlite3_step() error is available
+# immediately. Whereas if sqlite3_prepare() is used, it is not available
+# until sqlite3_finalize() or sqlite3_reset() has been called.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+set testprefix errmsg
+
+# Test organization:
+#
+#   errmsg-1.*         User-defined SQL function errors
+#   errmsg-2.*         Errors generated by the VDBE (constraint failures etc.)
+#   errmsg-3.*         SQLITE_SCHEMA and statement recompilation errors.
+#
+
+proc error_messages_worker {prepare sql schema} {
+  set ret [list]
+
+  set stmt [$prepare db $sql -1 dummy]
+  execsql $schema
+  lappend ret [sqlite3_step $stmt]
+  lappend ret [sqlite3_errmsg db]
+  lappend ret [sqlite3_finalize $stmt]
+  lappend ret [sqlite3_errmsg db]
+
+  set ret
+}
+
+proc error_messages_v2 {sql {schema {}}} {
+  error_messages_worker sqlite3_prepare_v2 $sql $schema
+}
+
+proc error_messages {sql {schema {}}} {
+  error_messages_worker sqlite3_prepare $sql $schema
+}
+
+proc sql_error {msg} { error $msg }
+db func sql_error sql_error
+
+#-------------------------------------------------------------------------
+# Test error messages returned by user-defined SQL functions.
+#
+do_test 1.1 {
+  error_messages "SELECT sql_error('custom message')"
+} [list {*}{
+    SQLITE_ERROR {SQL logic error} 
+    SQLITE_ERROR {custom message}
+}]
+do_test 1.2 {
+  error_messages_v2 "SELECT sql_error('custom message')"
+} [list {*}{
+    SQLITE_ERROR {custom message}
+    SQLITE_ERROR {custom message}
+}]
+
+#-------------------------------------------------------------------------
+# Test error messages generated directly by VDBE code (e.g. constraint
+# failures).
+#
+do_execsql_test 2.1 {
+  CREATE TABLE t1(a PRIMARY KEY, b UNIQUE);
+  INSERT INTO t1 VALUES('abc', 'def');
+}
+do_test 2.2 {
+  error_messages "INSERT INTO t1 VALUES('ghi', 'def')"
+} [list {*}{
+    SQLITE_ERROR      {SQL logic error} 
+    SQLITE_CONSTRAINT {UNIQUE constraint failed: t1.b}
+}]
+verify_ex_errcode 2.2b SQLITE_CONSTRAINT_UNIQUE
+do_test 2.3 {
+  error_messages_v2 "INSERT INTO t1 VALUES('ghi', 'def')"
+} [list {*}{
+    SQLITE_CONSTRAINT {UNIQUE constraint failed: t1.b}
+    SQLITE_CONSTRAINT {UNIQUE constraint failed: t1.b}
+}]
+verify_ex_errcode 2.3b SQLITE_CONSTRAINT_UNIQUE
+
+#-------------------------------------------------------------------------
+# Test SQLITE_SCHEMA errors. And, for _v2(), test that if the schema
+# change invalidates the SQL statement itself the error message is returned
+# correctly.
+#
+do_execsql_test 3.1.1 {
+  CREATE TABLE t2(a PRIMARY KEY, b UNIQUE);
+  INSERT INTO t2 VALUES('abc', 'def');
+}
+do_test 3.1.2 {
+  error_messages "SELECT a FROM t2" "DROP TABLE t2"
+} [list {*}{
+    SQLITE_ERROR {SQL logic error} 
+    SQLITE_SCHEMA {database schema has changed}
+}]
+do_execsql_test 3.2.1 {
+  CREATE TABLE t2(a PRIMARY KEY, b UNIQUE);
+  INSERT INTO t2 VALUES('abc', 'def');
+}
+do_test 3.2.2 {
+  error_messages_v2 "SELECT a FROM t2" "DROP TABLE t2"
+} [list {*}{
+    SQLITE_ERROR {no such table: t2} 
+    SQLITE_ERROR {no such table: t2}
+}]
+
+finish_test
diff --git a/test/errofst1.test b/test/errofst1.test
new file mode 100644
index 0000000000000000000000000000000000000000..f8876316e5e089ebbf3b46b378e5b5a915ad5949
--- /dev/null
+++ b/test/errofst1.test
@@ -0,0 +1,31 @@
+# 2024-11-20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test cases for sqlite3_error_offset()
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_execsql_test errofst1-1.1 {
+  CREATE TABLE t1 as select 1 as aa;
+  CREATE VIEW t2 AS
+     WITH t3 AS (SELECT 1 FROM t1 AS bb, t1 AS cc WHERE cc.aa <= sts.aa)
+     SELECT 1 FROM t3 AS dd;
+}
+do_catchsql_test errofst1-1.2 {
+  SELECT * FROM t2;
+} {1 {no such column: sts.aa}}
+do_test errofst1-1.3 {
+  sqlite3_error_offset db
+} {-1}
+
+finish_test
diff --git a/test/eval.test b/test/eval.test
new file mode 100644
index 0000000000000000000000000000000000000000..159e8754dc6db860357056dc682cbe11240a37bb
--- /dev/null
+++ b/test/eval.test
@@ -0,0 +1,87 @@
+# 2008 July 11
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file experiments with recursion using the "test_eval()" SQL function
+# in order to make sure that SQLite is reentrant.
+#
+# $Id: eval.test,v 1.2 2008/10/13 10:37:50 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Create a table to work with.
+#
+do_test eval-1.1 {
+  execsql {
+    CREATE TABLE t1(x INTEGER PRIMARY KEY); 
+    INSERT INTO t1 VALUES(1);
+    INSERT INTO t1 VALUES(2);
+    INSERT INTO t1 SELECT x+2 FROM t1;
+    INSERT INTO t1 SELECT x+4 FROM t1;
+    INSERT INTO t1 SELECT x+8 FROM t1;
+    INSERT INTO t1 SELECT x+16 FROM t1;
+    INSERT INTO t1 SELECT x+32 FROM t1;
+    INSERT INTO t1 SELECT x+64 FROM t1;
+    INSERT INTO t1 SELECT x+128 FROM t1;
+    INSERT INTO t1 SELECT x+256 FROM t1;
+    SELECT count(*), max(x) FROM t1;
+  }
+} {512 512}
+do_test eval-1.2 {
+  execsql {
+    SELECT x, test_eval('SELECT max(x) FROM t1 WHERE x<' || x) FROM t1 LIMIT 5
+  }
+} {1 {} 2 1 3 2 4 3 5 4}
+
+# Delete a row out from under a read cursor in the middle of
+# collecting the arguments for a single row in a result set.
+# Verify that subsequent rows come out as NULL.
+#
+do_test eval-2.1 {
+  execsql {
+    CREATE TABLE t2(x,y);
+    INSERT INTO t2 SELECT x, x+1 FROM t1 WHERE x<5;
+    SELECT x, test_eval('DELETE FROM t2 WHERE x='||x), y FROM t2;
+  }
+} {1 {} {} 2 {} {} 3 {} {} 4 {} {}}
+do_test eval-2.2 {
+  execsql {
+    SELECT * FROM t2
+  }
+} {}
+do_test eval-2.3 {
+  execsql {
+    INSERT INTO t2 SELECT x, x+1 FROM t1 WHERE x<5;
+    SELECT x, test_eval('DELETE FROM t2 WHERE x='||x), y FROM t2
+     ORDER BY rowid DESC;
+  }
+} {4 {} {} 3 {} {} 2 {} {} 1 {} {}}
+do_test eval-2.4 {
+  execsql {
+    SELECT * FROM t2
+  }
+} {}
+
+# Modify a row while it is being read.
+#
+do_test eval-3.1 {
+  execsql {
+    INSERT INTO t2 SELECT x, x+1 FROM t1 WHERE x<5;
+    SELECT x, test_eval('UPDATE t2 SET y=y+100 WHERE x='||x), y FROM t2;
+  }
+} {1 {} 102 2 {} 103 3 {} 104 4 {} 105}
+
+do_test eval-4.1 {
+  execsql { SELECT test_eval('SELECT ''abcdefghij''') }
+} {abcdefghij}
+
+finish_test
diff --git a/test/exclusive.test b/test/exclusive.test
new file mode 100644
index 0000000000000000000000000000000000000000..494ede7f7660b9e3000cc06a605406157559d8fc
--- /dev/null
+++ b/test/exclusive.test
@@ -0,0 +1,540 @@
+# 2007 March 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. The focus
+# of these tests is exclusive access mode (i.e. the thing activated by 
+# "PRAGMA locking_mode = EXCLUSIVE").
+#
+# $Id: exclusive.test,v 1.15 2009/06/26 12:30:40 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable {!pager_pragmas} {
+  finish_test
+  return
+}
+
+forcedelete test2.db-journal
+forcedelete test2.db
+forcedelete test3.db-journal
+forcedelete test3.db
+forcedelete test4.db-journal
+forcedelete test4.db
+
+#----------------------------------------------------------------------
+# Test cases exclusive-1.X test the PRAGMA logic.
+#
+do_test exclusive-1.0 {
+  execsql {
+    pragma locking_mode;
+    pragma main.locking_mode;
+    pragma temp.locking_mode;
+  } 
+} [list normal normal exclusive]
+do_test exclusive-1.1 {
+  execsql {
+    pragma locking_mode = exclusive;
+  } 
+} {exclusive}
+do_test exclusive-1.2 {
+  execsql {
+    pragma locking_mode;
+    pragma main.locking_mode;
+    pragma temp.locking_mode;
+  } 
+} [list exclusive exclusive exclusive]
+do_test exclusive-1.3 {
+  execsql {
+    pragma locking_mode = normal;
+  } 
+} {normal}
+do_test exclusive-1.4 {
+  execsql {
+    pragma locking_mode;
+    pragma main.locking_mode;
+    pragma temp.locking_mode;
+  } 
+} [list normal normal exclusive]
+do_test exclusive-1.5 {
+  execsql {
+    pragma locking_mode = invalid;
+  } 
+} {normal}
+do_test exclusive-1.6 {
+  execsql {
+    pragma locking_mode;
+    pragma main.locking_mode;
+    pragma temp.locking_mode;
+  } 
+} [list normal normal exclusive]
+ifcapable attach {
+  do_test exclusive-1.7 {
+    execsql {
+      pragma locking_mode = exclusive;
+      ATTACH 'test2.db' as aux;
+    }
+    execsql {
+      pragma main.locking_mode;
+      pragma aux.locking_mode;
+    }
+  } {exclusive exclusive}
+  do_test exclusive-1.8 {
+    execsql {
+      pragma main.locking_mode = normal;
+    }
+    execsql {
+      pragma main.locking_mode;
+      pragma temp.locking_mode;
+      pragma aux.locking_mode;
+    }
+  } [list normal exclusive exclusive]
+  do_test exclusive-1.9 {
+    execsql {
+      pragma locking_mode;
+    }
+  } {exclusive}
+  do_test exclusive-1.10 {
+    execsql {
+      ATTACH 'test3.db' as aux2;
+    }
+    execsql {
+      pragma main.locking_mode;
+      pragma aux.locking_mode;
+      pragma aux2.locking_mode;
+    }
+  } {normal exclusive exclusive}
+  do_test exclusive-1.11 {
+    execsql {
+      pragma aux.locking_mode = normal;
+    }
+    execsql {
+      pragma main.locking_mode;
+      pragma aux.locking_mode;
+      pragma aux2.locking_mode;
+    }
+  } {normal normal exclusive}
+  do_test exclusive-1.12 {
+    execsql {
+      pragma locking_mode = normal;
+    }
+    execsql {
+      pragma main.locking_mode;
+      pragma temp.locking_mode;
+      pragma aux.locking_mode;
+      pragma aux2.locking_mode;
+    }
+  } [list normal exclusive normal normal]
+  do_test exclusive-1.13 {
+    execsql {
+      ATTACH 'test4.db' as aux3;
+    }
+    execsql {
+      pragma main.locking_mode;
+      pragma temp.locking_mode;
+      pragma aux.locking_mode;
+      pragma aux2.locking_mode;
+      pragma aux3.locking_mode;
+    }
+  } [list normal exclusive normal normal normal]
+  
+  do_test exclusive-1.99 {
+    execsql {
+      DETACH aux;
+      DETACH aux2;
+      DETACH aux3;
+    }
+  } {}
+}
+
+#----------------------------------------------------------------------
+# Test cases exclusive-2.X verify that connections in exclusive 
+# locking_mode do not relinquish locks.
+#
+do_test exclusive-2.0 {
+  execsql {
+    CREATE TABLE abc(a, b, c);
+    INSERT INTO abc VALUES(1, 2, 3);
+    PRAGMA locking_mode = exclusive;
+  }
+} {exclusive}
+do_test exclusive-2.1 {
+  sqlite3 db2 test.db
+  execsql {
+    INSERT INTO abc VALUES(4, 5, 6);
+    SELECT * FROM abc;
+  } db2
+} {1 2 3 4 5 6}
+do_test exclusive-2.2 {
+  # This causes connection 'db' (in exclusive mode) to establish 
+  # a shared-lock on the db. The other connection should now be
+  # locked out as a writer.
+  execsql {
+    SELECT * FROM abc;
+  } db
+} {1 2 3 4 5 6}
+do_test exclusive-2.4 {
+  execsql {
+    SELECT * FROM abc;
+  } db2
+} {1 2 3 4 5 6}
+do_test exclusive-2.5 {
+  catchsql {
+    INSERT INTO abc VALUES(7, 8, 9);
+  } db2
+} {1 {database is locked}}
+sqlite3_soft_heap_limit 0
+do_test exclusive-2.6 {
+  # Because connection 'db' only has a shared-lock, the other connection
+  # will be able to get a RESERVED, but will fail to upgrade to EXCLUSIVE.
+  execsql {
+    BEGIN;
+    INSERT INTO abc VALUES(7, 8, 9);
+  } db2
+  catchsql {
+    COMMIT
+  } db2
+} {1 {database is locked}}
+do_test exclusive-2.7 {
+  catchsql {
+    COMMIT
+  } db2
+} {1 {database is locked}}
+do_test exclusive-2.8 {
+  execsql {
+    ROLLBACK;
+  } db2
+} {}
+sqlite3_soft_heap_limit $cmdlinearg(soft-heap-limit)
+
+do_test exclusive-2.9 {
+  # Write the database to establish the exclusive lock with connection 'db.
+  execsql {
+    INSERT INTO abc VALUES(7, 8, 9);
+  } db
+  catchsql {
+    SELECT * FROM abc;
+  } db2
+} {1 {database is locked}}
+do_test exclusive-2.10 {
+  # Changing the locking-mode does not release any locks.
+  execsql {
+    PRAGMA locking_mode = normal;
+  } db
+  catchsql {
+    SELECT * FROM abc;
+  } db2
+} {1 {database is locked}}
+do_test exclusive-2.11 {
+  # After changing the locking mode, accessing the db releases locks.
+  execsql {
+    SELECT * FROM abc;
+  } db
+  execsql {
+    SELECT * FROM abc;
+  } db2
+} {1 2 3 4 5 6 7 8 9}
+db2 close
+
+#----------------------------------------------------------------------
+# Tests exclusive-3.X - test that a connection in exclusive mode 
+# truncates instead of deletes the journal file when committing 
+# a transaction.
+#
+# These tests are not run on windows because the windows backend
+# opens the journal file for exclusive access, preventing its contents 
+# from being inspected externally.
+#
+if {$tcl_platform(platform) != "windows"
+ && [atomic_batch_write test.db]==0
+} {
+
+  # Return a list of two booleans (either 0 or 1). The first is true
+  # if the named file exists. The second is true only if the file
+  # exists and the first 28 bytes contain at least one non-zero byte.
+  #
+  proc filestate {fname} {
+    set exists 0
+    set content 0
+    if {[file exists $fname]} {
+      set exists 1
+      set hdr [hexio_read $fname 0 28]
+      set content [expr {0==[string match $hdr [string repeat 0 56]]}]
+    }
+    list $exists $content
+  }
+
+  do_test exclusive-3.0 {
+    filestate test.db-journal
+  } {0 0}
+  do_test exclusive-3.1 {
+    execsql {
+      PRAGMA locking_mode = exclusive;
+      BEGIN;
+      DELETE FROM abc;
+    }
+    filestate test.db-journal
+  } {1 1}
+  do_test exclusive-3.2 {
+    execsql {
+      COMMIT;
+    }
+    filestate test.db-journal
+  } {1 0}
+  do_test exclusive-3.3 {
+    execsql {
+      INSERT INTO abc VALUES('A', 'B', 'C');
+      SELECT * FROM abc;
+    }
+  } {A B C}
+  do_test exclusive-3.4 {
+    execsql {
+      BEGIN;
+      UPDATE abc SET a = 1, b = 2, c = 3;
+      ROLLBACK;
+      SELECT * FROM abc;
+    }
+  } {A B C}
+  do_test exclusive-3.5 {
+    filestate test.db-journal
+  } {1 0}
+  do_test exclusive-3.6 {
+    execsql {
+      PRAGMA locking_mode = normal;
+      SELECT * FROM abc;
+    }
+    filestate test.db-journal
+  } {0 0}
+}
+
+#----------------------------------------------------------------------
+# Tests exclusive-4.X - test that rollback works correctly when
+# in exclusive-access mode.
+#
+
+# The following procedure computes a "signature" for table "t3".  If
+# T3 changes in any way, the signature should change.  
+#
+# This is used to test ROLLBACK.  We gather a signature for t3, then
+# make lots of changes to t3, then rollback and take another signature.
+# The two signatures should be the same.
+#
+proc signature {} {
+  return [db eval {SELECT count(*), md5sum(x) FROM t3}]
+}
+
+do_test exclusive-4.0 {
+  execsql { PRAGMA locking_mode = exclusive; }
+  execsql { PRAGMA default_cache_size = 10; }
+  execsql {
+    BEGIN;
+    CREATE TABLE t3(x TEXT);
+    INSERT INTO t3 VALUES(randstr(10,400));
+    INSERT INTO t3 VALUES(randstr(10,400));
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3;
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3;
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3;
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3;
+    COMMIT;
+  }
+  execsql {SELECT count(*) FROM t3;}
+} {32}
+
+set ::X [signature]
+do_test exclusive-4.1 {
+  execsql {
+    BEGIN;
+    DELETE FROM t3 WHERE random()%10!=0;
+    INSERT INTO t3 SELECT randstr(10,10)||x FROM t3;
+    INSERT INTO t3 SELECT randstr(10,10)||x FROM t3;
+    SELECT count(*) FROM t3;
+    ROLLBACK;
+  }
+  signature
+} $::X
+
+do_test exclusive-4.2 {
+  execsql {
+    BEGIN;
+    DELETE FROM t3 WHERE random()%10!=0;
+    INSERT INTO t3 SELECT randstr(10,10)||x FROM t3;
+    DELETE FROM t3 WHERE random()%10!=0;
+    INSERT INTO t3 SELECT randstr(10,10)||x FROM t3;
+    ROLLBACK;
+  }
+  signature
+} $::X
+
+do_test exclusive-4.3 {
+  execsql {
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3 WHERE random()%10==0;
+  }
+} {}
+
+do_test exclusive-4.4 {
+  catch {set ::X [signature]}
+} {0}
+do_test exclusive-4.5 {
+  execsql {
+    PRAGMA locking_mode = NORMAL;
+    DROP TABLE t3;
+    DROP TABLE abc;
+  }
+} {normal}
+
+#----------------------------------------------------------------------
+# Tests exclusive-5.X - test that statement journals are truncated
+# instead of deleted when in exclusive access mode.
+#
+if {[atomic_batch_write test.db]==0} {
+
+# Close and reopen the database so that the temp database is no
+# longer active.
+#
+db close
+sqlite3 db test.db
+
+# if we're using proxy locks, we use 3 filedescriptors for a db
+# that is open but NOT writing changes, normally
+# sqlite uses 1 (proxy locking adds the conch and the local lock)
+set using_proxy 0
+foreach {name value} [array get env SQLITE_FORCE_PROXY_LOCKING] {
+  set using_proxy $value
+}
+set extrafds 0
+if {$using_proxy!=0} {
+  set extrafds 2
+} 
+
+do_test exclusive-5.0 {
+  execsql {
+    CREATE TABLE abc(a UNIQUE, b UNIQUE, c UNIQUE);
+    BEGIN;
+    INSERT INTO abc VALUES(1, 2, 3);
+    INSERT INTO abc SELECT a+1, b+1, c+1 FROM abc;
+  }
+} {}
+do_test exclusive-5.1 {
+  # Three files are open: The db, journal and statement-journal.
+  # (2016-03-04) The statement-journal is now opened lazily
+  set sqlite_open_file_count
+  expr $sqlite_open_file_count-$extrafds
+} {2}
+do_test exclusive-5.2 {
+  execsql {
+    COMMIT;
+  }
+  # One file open: the db.
+  set sqlite_open_file_count
+  expr $sqlite_open_file_count-$extrafds
+} {1}
+do_test exclusive-5.3 {
+  execsql {
+    PRAGMA locking_mode = exclusive;
+    BEGIN;
+    INSERT INTO abc VALUES(5, 6, 7);
+  }
+  # Two files open: the db and journal.
+  set sqlite_open_file_count
+  expr $sqlite_open_file_count-$extrafds
+} {2}
+do_test exclusive-5.4 {
+  execsql {
+    INSERT INTO abc SELECT a+10, b+10, c+10 FROM abc;
+  }
+  # Three files are open: The db, journal and statement-journal.
+  # 2016-03-04: The statement-journal open is deferred
+  set sqlite_open_file_count
+  expr $sqlite_open_file_count-$extrafds
+} {2}
+do_test exclusive-5.5 {
+  execsql {
+    COMMIT;
+  }
+  # Three files are still open: The db, journal and statement-journal.
+  # 2016-03-04: The statement-journal open is deferred
+  set sqlite_open_file_count
+  expr $sqlite_open_file_count-$extrafds
+} {2}
+do_test exclusive-5.6 {
+  execsql {
+    PRAGMA locking_mode = normal;
+    SELECT * FROM abc;
+  }
+} {normal 1 2 3 2 3 4 5 6 7 11 12 13 12 13 14 15 16 17}
+do_test exclusive-5.7 {
+  # Just the db open.
+  set sqlite_open_file_count
+  expr $sqlite_open_file_count-$extrafds
+} {1}
+
+#-------------------------------------------------------------------------
+
+do_execsql_test exclusive-6.1 {
+  CREATE TABLE t4(a, b);
+  INSERT INTO t4 VALUES('Eden', 1955);
+  BEGIN;
+    INSERT INTO t4 VALUES('Macmillan', 1957);
+    INSERT INTO t4 VALUES('Douglas-Home', 1963);
+    INSERT INTO t4 VALUES('Wilson', 1964);
+}
+do_test exclusive-6.2 {
+  forcedelete test2.db test2.db-journal
+  copy_file test.db test2.db
+  copy_file test.db-journal test2.db-journal
+  sqlite3 db test2.db
+} {}
+
+do_execsql_test exclusive-6.3 {
+  PRAGMA locking_mode = EXCLUSIVE;
+  SELECT * FROM t4;
+} {exclusive Eden 1955}
+
+do_test exclusive-6.4 {
+  db close
+  forcedelete test.db test.db-journal
+  set fd [open test.db-journal w]
+  puts $fd x
+  close $fd
+  sqlite3 db test.db
+} {}
+
+do_execsql_test exclusive-6.5 {
+  PRAGMA locking_mode = EXCLUSIVE;
+  SELECT * FROM sqlite_master;
+} {exclusive}
+
+# 2019-12-26 ticket fb3b3024ea238d5c
+if {[permutation]!="journaltest"} {
+  # The custom VFS used by the "journaltest" permutation cannot open the
+  # shared-memory file. So, while it is able to switch the db file to
+  # journal_mode=WAL when locking_mode=EXCLUSIVE, it can no longer access
+  # it once the locking_mode is changed back to NORMAL.
+  do_test exclusive-7.1 {
+    db close
+    forcedelete test.db test.db-journal test.db-wal
+    sqlite3 db test.db
+    # The following sequence of pragmas would trigger an assert()
+    # associated with Pager.changeCountDone inside of assert_pager_state(),
+    # prior to the fix.
+    db eval {
+      PRAGMA locking_mode = EXCLUSIVE;
+      PRAGMA journal_mode = WAL;
+      PRAGMA locking_mode = NORMAL;
+      PRAGMA user_version;
+      PRAGMA journal_mode = DELETE;
+    }
+  } {exclusive wal normal 0 delete}
+}
+ 
+
+} ;# atomic_batch_write==0
+
+finish_test
diff --git a/test/exclusive2.test b/test/exclusive2.test
new file mode 100644
index 0000000000000000000000000000000000000000..0a5d2b6eb8834c13513f1e9096c425e2e2206428
--- /dev/null
+++ b/test/exclusive2.test
@@ -0,0 +1,324 @@
+# 2007 March 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# $Id: exclusive2.test,v 1.10 2008/11/27 02:22:11 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Do not use a codec for tests in this file, as the database file is
+# manipulated directly using tcl scripts (using the [hexio_write] command).
+#
+do_not_use_codec
+
+ifcapable {!pager_pragmas} {
+  finish_test
+  return
+}
+
+# Tests in this file verify that locking_mode=exclusive causes SQLite to
+# use cached pages even if the database is changed on disk. This doesn't
+# work with mmap.
+if {[permutation]=="mmap"} {
+  finish_test
+  return
+}
+
+# This module does not work right if the cache spills at unexpected
+# moments.  So disable the soft-heap-limit.
+#
+sqlite3_soft_heap_limit 0
+
+proc pagerChangeCounter {filename new {fd ""}} {
+  if {$fd==""} {
+    set fd [open $filename RDWR]
+    fconfigure $fd -translation binary
+    set needClose 1
+  } else {
+    set needClose 0
+  }
+  if {$new ne ""} {
+    seek $fd 24
+    set a [expr {($new&0xFF000000)>>24}]
+    set b [expr {($new&0x00FF0000)>>16}]
+    set c [expr {($new&0x0000FF00)>>8}]
+    set d [expr {($new&0x000000FF)}]
+    puts -nonewline $fd [binary format cccc $a $b $c $d]
+    flush $fd
+  }
+
+  seek $fd 24
+  foreach {a b c d} [list 0 0 0 0] {}
+  binary scan [read $fd 4] cccc a b c d
+  set  ret [expr ($a&0x000000FF)<<24]
+  incr ret [expr ($b&0x000000FF)<<16]
+  incr ret [expr ($c&0x000000FF)<<8]
+  incr ret [expr ($d&0x000000FF)<<0]
+
+  if {$needClose} {close $fd}
+  return $ret
+}
+
+proc readPagerChangeCounter {filename} {
+  set fd [open $filename RDONLY]
+  fconfigure $fd -translation binary
+
+  seek $fd 24
+  foreach {a b c d} [list 0 0 0 0] {}
+  binary scan [read $fd 4] cccc a b c d
+  set  ret [expr ($a&0x000000FF)<<24]
+  incr ret [expr ($b&0x000000FF)<<16]
+  incr ret [expr ($c&0x000000FF)<<8]
+  incr ret [expr ($d&0x000000FF)<<0]
+
+  close $fd
+  return $ret
+}
+
+
+proc t1sig {{db db}} {
+  execsql {SELECT count(*), md5sum(a) FROM t1} $db
+}
+do_test exclusive2-1.0 {
+  readPagerChangeCounter test.db
+} {0}
+
+#-----------------------------------------------------------------------
+# The following tests - exclusive2-1.X - check that:
+#
+# 1-3:   Build a database with connection 1, calculate a signature.
+# 4-7:   Modify the database using a second connection in a way that
+#        does not modify the freelist, then reset the pager change-counter
+#        to the value it had before the modifications.
+# 8:     Check that using the first connection, the database signature
+#        is still the same. This is because it uses the in-memory cache.
+#        It can't tell the db has changed because we reset the change-counter.
+# 9:     Increment the change-counter.
+# 10:    Ensure that the first connection now sees the updated database. It
+#        sees the change-counter has been incremented and discards the 
+#        invalid in-memory cache.
+#
+# This will only work if the database cache is large enough to hold 
+# the entire database. In the case of 1024 byte pages, this means
+# the cache size must be at least 17. Otherwise, some pages will be
+# loaded from the database file in step 8.
+#
+# For similar reasons, this test does not work with the memsubsys1 permutation.
+# Permutation memsubsys1 configures the pcache subsystem to use a static
+# allocation of 24 pages (shared between all pagers). This is not enough for
+# this test.
+#
+do_test exclusive2-1.1 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1(a, b) VALUES(randstr(10, 400), 0);
+    INSERT INTO t1(a, b) VALUES(randstr(10, 400), 0);
+    INSERT INTO t1(a, b) SELECT randstr(10, 400), 0 FROM t1;
+    INSERT INTO t1(a, b) SELECT randstr(10, 400), 0 FROM t1;
+    INSERT INTO t1(a, b) SELECT randstr(10, 400), 0 FROM t1;
+    INSERT INTO t1(a, b) SELECT randstr(10, 400), 0 FROM t1;
+    INSERT INTO t1(a, b) SELECT randstr(10, 400), 0 FROM t1;
+    COMMIT;
+    SELECT count(*) FROM t1;
+  }
+} {64}
+do_test exclusive2-1.2.1 {
+  # Make sure the pager cache is large enough to store the 
+  # entire database.
+  set nPage [expr [file size test.db]/1024]
+  if {$::SQLITE_DEFAULT_CACHE_SIZE < $nPage} {
+    execsql "PRAGMA cache_size = $nPage"
+  }
+  expr {[execsql {PRAGMA cache_size}] >= $nPage}
+} {1}
+do_test exclusive2-1.2 {
+  set ::sig [t1sig]
+  readPagerChangeCounter test.db
+} {1}
+do_test exclusive2-1.3 {
+  t1sig
+} $::sig
+do_test exclusive2-1.4 {
+  sqlite3 db2 test.db
+  t1sig db2
+} $::sig
+do_test exclusive2-1.5 {
+  execsql {
+    UPDATE t1 SET b=a, a=0;
+  } db2
+  expr {[t1sig db2] eq $::sig}
+} 0
+do_test exclusive2-1.6 {
+  readPagerChangeCounter test.db
+} {2}
+do_test exclusive2-1.7 {
+  pagerChangeCounter test.db 1
+} {1}
+if {[permutation] != "memsubsys1"} {
+  do_test exclusive2-1.9 {
+    t1sig
+    expr {[t1sig] eq $::sig}
+  } {1}
+}
+do_test exclusive2-1.10 {
+  pagerChangeCounter test.db 2
+} {2}
+do_test exclusive2-1.11 {
+  expr {[t1sig] eq $::sig}
+} {0}
+db2 close
+
+#--------------------------------------------------------------------
+# These tests - exclusive2-2.X - are similar to exclusive2-1.X, 
+# except that they are run with locking_mode=EXCLUSIVE.
+#
+# 1-3:   Build a database with exclusive-access connection 1, 
+#        calculate a signature.
+# 4:     Corrupt the database by writing 10000 bytes of garbage
+#        starting at the beginning of page 2. Check that connection 1
+#        still works. It should be accessing the in-memory cache.
+# 5-6:   Modify the dataase change-counter. Connection 1 still works
+#        entirely from in-memory cache, because it doesn't check the
+#        change-counter.
+# 7-8    Set the locking-mode back to normal. After the db is unlocked,
+#        SQLite detects the modified change-counter and discards the
+#        in-memory cache. Then it finds the corruption caused in step 4....
+#
+# As above, this test is only applicable if the pager cache is
+# large enough to hold the entire database. With 1024 byte pages,
+# this means 19 pages.  We also need to disable the soft-heap-limit
+# to prevent memory-induced cache spills.
+#
+do_test exclusive2-2.1 {
+  execsql {PRAGMA cache_size=1000;}
+  execsql {PRAGMA locking_mode = exclusive;}
+  execsql {
+    BEGIN;
+    DELETE FROM t1;
+    INSERT INTO t1(a) VALUES(randstr(10, 400));
+    INSERT INTO t1(a) VALUES(randstr(10, 400));
+    INSERT INTO t1(a) SELECT randstr(10, 400) FROM t1;
+    INSERT INTO t1(a) SELECT randstr(10, 400) FROM t1;
+    INSERT INTO t1(a) SELECT randstr(10, 400) FROM t1;
+    INSERT INTO t1(a) SELECT randstr(10, 400) FROM t1;
+    INSERT INTO t1(a) SELECT randstr(10, 400) FROM t1;
+    COMMIT;
+    SELECT count(*) FROM t1;
+  }
+} {64}
+do_test exclusive2-2.2.1 {
+  # Make sure the pager cache is large enough to store the 
+  # entire database.
+  set nPage [expr [file size test.db]/1024]
+  if {$::SQLITE_DEFAULT_CACHE_SIZE < $nPage} {
+    execsql "PRAGMA cache_size = $nPage"
+  }
+  expr {[execsql {PRAGMA cache_size}] >= $nPage}
+} {1}
+do_test exclusive2-2.2 {
+  set ::sig [t1sig]
+  readPagerChangeCounter test.db
+} {3}
+do_test exclusive2-2.3 {
+  t1sig
+} $::sig
+
+do_test exclusive2-2.4 {
+  set ::fd [open test.db RDWR]
+  fconfigure $::fd -translation binary
+  seek $::fd 1024
+  puts -nonewline $::fd [string repeat [binary format c 0] 10000]
+  flush $::fd
+  t1sig
+} $::sig
+
+do_test exclusive2-2.5 {
+  pagerChangeCounter test.db 5 $::fd
+} {5}
+do_test exclusive2-2.6 {
+  t1sig
+} $::sig
+do_test exclusive2-2.7 {
+  execsql {PRAGMA locking_mode = normal}
+  t1sig
+} $::sig
+
+do_test exclusive2-2.8 {
+  set rc [catch {t1sig} msg]
+  list $rc $msg
+} {1 {database disk image is malformed}}
+
+#--------------------------------------------------------------------
+# These tests - exclusive2-3.X - verify that the pager change-counter
+# is only incremented by the first change when in exclusive access
+# mode. In normal mode, the change-counter is incremented once
+# per write-transaction.
+#
+
+db close
+catch {close $::fd}
+forcedelete test.db
+forcedelete test.db-journal
+
+do_test exclusive2-3.0 {
+  sqlite3 db test.db
+  execsql {
+    BEGIN;
+    CREATE TABLE t1(a UNIQUE);
+    INSERT INTO t1 VALUES(randstr(200, 200));
+    INSERT INTO t1 VALUES(randstr(200, 200));
+    COMMIT;
+  }
+  readPagerChangeCounter test.db
+} {1}
+do_test exclusive2-3.1 {
+  execsql {
+    INSERT INTO t1 VALUES(randstr(200, 200));
+  }
+  readPagerChangeCounter test.db
+} {2}
+do_test exclusive2-3.2 {
+  execsql {
+    INSERT INTO t1 VALUES(randstr(200, 200));
+  }
+  readPagerChangeCounter test.db
+} {3}
+do_test exclusive2-3.3 {
+  execsql {
+    PRAGMA locking_mode = exclusive;
+    INSERT INTO t1 VALUES(randstr(200, 200));
+  }
+  readPagerChangeCounter test.db
+} {4}
+do_test exclusive2-3.4 {
+  execsql {
+    INSERT INTO t1 VALUES(randstr(200, 200));
+  }
+  readPagerChangeCounter test.db
+} {4}
+do_test exclusive2-3.5 {
+  execsql {
+    PRAGMA locking_mode = normal;
+    INSERT INTO t1 VALUES(randstr(200, 200));
+  }
+  readPagerChangeCounter test.db
+} {4}
+do_test exclusive2-3.6 {
+  execsql {
+    INSERT INTO t1 VALUES(randstr(200, 200));
+  }
+  readPagerChangeCounter test.db
+} {5}
+sqlite3_soft_heap_limit $cmdlinearg(soft-heap-limit)
+
+finish_test
diff --git a/test/exec.test b/test/exec.test
new file mode 100644
index 0000000000000000000000000000000000000000..dbcc6265b344bc8cbdfe650bf87bd0b665176a01
--- /dev/null
+++ b/test/exec.test
@@ -0,0 +1,37 @@
+# 2008 Jan 21
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests for the sqlite3_exec interface
+#
+# $Id: exec.test,v 1.1 2008/01/21 16:22:46 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test exec-1.1 {
+  execsql {
+    CREATE TABLE t1(a,b);
+    INSERT INTO t1 VALUES(1,2);
+    SELECT * FROM t1;
+  }
+} {1 2}
+do_test exec-1.2 {
+  sqlite3_exec db {/* comment */;;; SELECT * FROM t1; /* comment */}
+} {0 {a b 1 2}}
+do_test exec-1.3 {
+  sqlite3 db2 test.db
+  db2 eval {CREATE TABLE t2(x, y);}
+  db2 close
+  sqlite3_exec db {SELECT * FROM t1}
+} {0 {a b 1 2}}
+
+finish_test
diff --git a/test/exists.test b/test/exists.test
new file mode 100644
index 0000000000000000000000000000000000000000..5f9e36eb008914bee147ca1d698fb25d986e1d0f
--- /dev/null
+++ b/test/exists.test
@@ -0,0 +1,199 @@
+# 2011 April 9
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the various schema modification statements
+# that feature "IF EXISTS" or "IF NOT EXISTS" clauses.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+
+
+foreach jm {rollback wal} {
+  if {![wal_is_capable] && $jm=="wal"} continue
+
+  set testprefix exists-$jm
+
+  # This block of tests is targeted at CREATE XXX IF NOT EXISTS statements.
+  #
+  do_multiclient_test tn {
+
+    # TABLE objects.
+    #
+    do_test 1.$tn.1.1 {
+      if {$jm == "wal"} { sql2 { PRAGMA journal_mode = WAL } }
+      sql2 { CREATE TABLE t1(x) }
+      sql1 { CREATE TABLE IF NOT EXISTS t1(a, b) }
+      sql2 { DROP TABLE t1 }
+      sql1 { CREATE TABLE IF NOT EXISTS t1(a, b) }
+      sql2 { SELECT name FROM sqlite_master WHERE type = 'table' }
+    } {t1}
+
+    do_test 1.$tn.1.2 {
+      sql2 { CREATE TABLE t2(x) }
+      sql1 { CREATE TABLE IF NOT EXISTS t2 AS SELECT * FROM t1 }
+      sql2 { DROP TABLE t2 }
+      sql1 { CREATE TABLE IF NOT EXISTS t2 AS SELECT * FROM t1 }
+      sql2 { SELECT name FROM sqlite_master WHERE type = 'table' }
+    } {t1 t2}
+
+
+    # INDEX objects.
+    #
+    do_test 1.$tn.2 {
+      sql2 { CREATE INDEX i1 ON t1(a) }
+      sql1 { CREATE INDEX IF NOT EXISTS i1 ON t1(a, b) }
+      sql2 { DROP INDEX i1 }
+      sql1 { CREATE INDEX IF NOT EXISTS i1 ON t1(a, b) }
+      sql2 { SELECT name FROM sqlite_master WHERE type = 'index' }
+    } {i1}
+
+    # VIEW objects.
+    #
+    do_test 1.$tn.3 {
+      sql2 { CREATE VIEW v1 AS SELECT * FROM t1 }
+      sql1 { CREATE VIEW IF NOT EXISTS v1 AS SELECT * FROM t1 }
+      sql2 { DROP VIEW v1 }
+      sql1 { CREATE VIEW IF NOT EXISTS v1 AS SELECT * FROM t1 }
+      sql2 { SELECT name FROM sqlite_master WHERE type = 'view' }
+    } {v1}
+
+    # TRIGGER objects.
+    #
+    do_test $tn.4 {
+      sql2 { CREATE TRIGGER tr1 AFTER INSERT ON t1 BEGIN SELECT 1; END }
+  sql1 { CREATE TRIGGER IF NOT EXISTS tr1 AFTER INSERT ON t1 BEGIN SELECT 1; END }
+      sql2 { DROP TRIGGER tr1 }
+  sql1 { CREATE TRIGGER IF NOT EXISTS tr1 AFTER INSERT ON t1 BEGIN SELECT 1; END }
+      sql2 { SELECT name FROM sqlite_master WHERE type = 'trigger' }
+    } {tr1}
+  }
+
+  # This block of tests is targeted at DROP XXX IF EXISTS statements.
+  #
+  do_multiclient_test tn {
+
+    # TABLE objects.
+    #
+    do_test 2.$tn.1 {
+      if {$jm == "wal"} { sql1 { PRAGMA journal_mode = WAL } }
+      sql1 { DROP TABLE IF EXISTS t1 }
+      sql2 { CREATE TABLE t1(x) }
+      sql1 { DROP TABLE IF EXISTS t1 }
+      sql2 { SELECT name FROM sqlite_master WHERE type = 'table' }
+    } {}
+
+    # INDEX objects.
+    #
+    do_test 2.$tn.2 {
+      sql1 { CREATE TABLE t2(x) }
+      sql1 { DROP INDEX IF EXISTS i2 }
+      sql2 { CREATE INDEX i2 ON t2(x) }
+      sql1 { DROP INDEX IF EXISTS i2 }
+      sql2 { SELECT name FROM sqlite_master WHERE type = 'index' }
+    } {}
+
+    # VIEW objects.
+    #
+    do_test 2.$tn.3 {
+      sql1 { DROP VIEW IF EXISTS v1 }
+      sql2 { CREATE VIEW v1 AS SELECT * FROM t2 }
+      sql1 { DROP VIEW IF EXISTS v1 }
+      sql2 { SELECT name FROM sqlite_master WHERE type = 'view' }
+    } {}
+
+    # TRIGGER objects.
+    #
+    do_test 2.$tn.4 {
+      sql1 { DROP TRIGGER IF EXISTS tr1 }
+      sql2 { CREATE TRIGGER tr1 AFTER INSERT ON t2 BEGIN SELECT 1; END }
+      sql1 { DROP TRIGGER IF EXISTS tr1 }
+      sql2 { SELECT name FROM sqlite_master WHERE type = 'trigger' }
+    } {}
+  }
+
+  # This block of tests is targeted at DROP XXX IF EXISTS statements with
+  # attached databases.
+  #
+  do_multiclient_test tn {
+
+    forcedelete test.db2
+    do_test 3.$tn.0 {
+      sql1 { ATTACH 'test.db2' AS aux }
+      sql2 { ATTACH 'test.db2' AS aux }
+    } {}
+
+    # TABLE objects.
+    #
+    do_test 3.$tn.1.1 {
+      sql1 { DROP TABLE IF EXISTS aux.t1 }
+      sql2 { CREATE TABLE aux.t1(x) }
+      sql1 { DROP TABLE IF EXISTS aux.t1 }
+      sql2 { SELECT name FROM aux.sqlite_master WHERE type = 'table' }
+    } {}
+    do_test 3.$tn.1.2 {
+      sql1 { DROP TABLE IF EXISTS t1 }
+      sql2 { CREATE TABLE aux.t1(x) }
+      sql1 { DROP TABLE IF EXISTS t1 }
+      sql2 { SELECT name FROM aux.sqlite_master WHERE type = 'table' }
+    } {}
+
+    # INDEX objects.
+    #
+    do_test 3.$tn.2.1 {
+      sql1 { CREATE TABLE aux.t2(x) }
+      sql1 { DROP INDEX IF EXISTS aux.i2 }
+      sql2 { CREATE INDEX aux.i2 ON t2(x) }
+      sql1 { DROP INDEX IF EXISTS aux.i2 }
+      sql2 { SELECT name FROM aux.sqlite_master WHERE type = 'index' }
+    } {}
+    do_test 3.$tn.2.2 {
+      sql1 { DROP INDEX IF EXISTS i2 }
+      sql2 { CREATE INDEX aux.i2 ON t2(x) }
+      sql1 { DROP INDEX IF EXISTS i2 }
+      sql2 { SELECT * FROM aux.sqlite_master WHERE type = 'index' }
+    } {}
+
+    # VIEW objects.
+    #
+    do_test 3.$tn.3.1 {
+      sql1 { DROP VIEW IF EXISTS aux.v1 }
+      sql2 { CREATE VIEW aux.v1 AS SELECT * FROM t2 }
+      sql1 { DROP VIEW IF EXISTS aux.v1 }
+      sql2 { SELECT name FROM aux.sqlite_master WHERE type = 'view' }
+    } {}
+    do_test 3.$tn.3.2 {
+      sql1 { DROP VIEW IF EXISTS v1 }
+      sql2 { CREATE VIEW aux.v1 AS SELECT * FROM t2 }
+      sql1 { DROP VIEW IF EXISTS v1 }
+      sql2 { SELECT name FROM aux.sqlite_master WHERE type = 'view' }
+    } {}
+
+    # TRIGGER objects.
+    #
+    do_test 3.$tn.4.1 {
+      sql1 { DROP TRIGGER IF EXISTS aux.tr1 }
+      sql2 { CREATE TRIGGER aux.tr1 AFTER INSERT ON t2 BEGIN SELECT 1; END }
+      sql1 { DROP TRIGGER IF EXISTS aux.tr1 }
+      sql2 { SELECT name FROM aux.sqlite_master WHERE type = 'trigger' }
+    } {}
+    do_test 3.$tn.4.2 {
+      sql1 { DROP TRIGGER IF EXISTS tr1 }
+      sql2 { CREATE TRIGGER aux.tr1 AFTER INSERT ON t2 BEGIN SELECT 1; END }
+      sql1 { DROP TRIGGER IF EXISTS tr1 }
+      sql2 { SELECT name FROM aux.sqlite_master WHERE type = 'trigger' }
+    } {}
+  }
+}
+
+
+finish_test
diff --git a/test/expr.test b/test/expr.test
new file mode 100644
index 0000000000000000000000000000000000000000..55b1dc95021a435fc518b1289dff042e412655ac
--- /dev/null
+++ b/test/expr.test
@@ -0,0 +1,1084 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing expressions.
+#
+# $Id: expr.test,v 1.67 2009/02/04 03:59:25 shane Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Create a table to work with.
+#
+ifcapable floatingpoint {
+  execsql {CREATE TABLE test1(i1 int, i2 int, r1 real, r2 real, t1 text, t2 text)}
+  execsql {INSERT INTO test1 VALUES(1,2,1.1,2.2,'hello','world')}
+}
+ifcapable !floatingpoint {
+  execsql {CREATE TABLE test1(i1 int, i2 int, t1 text, t2 text)}
+  execsql {INSERT INTO test1 VALUES(1,2,'hello','world')}
+}
+
+proc test_expr {name settings expr result} {
+  do_test $name [format {
+    execsql {BEGIN; UPDATE test1 SET %s; SELECT %s FROM test1; ROLLBACK;}
+  } $settings $expr] $result
+}
+proc test_realnum_expr {name settings expr result} {
+  do_realnum_test $name [format {
+    execsql {BEGIN; UPDATE test1 SET %s; SELECT %s FROM test1; ROLLBACK;}
+  } $settings $expr] $result
+}
+
+test_expr expr-1.1 {i1=10, i2=20} {i1+i2} 30
+test_expr expr-1.2 {i1=10, i2=20} {i1-i2} -10
+test_expr expr-1.3 {i1=10, i2=20} {i1*i2} 200
+test_expr expr-1.4 {i1=10, i2=20} {i1/i2} 0
+test_expr expr-1.5 {i1=10, i2=20} {i2/i1} 2
+test_expr expr-1.6 {i1=10, i2=20} {i2<i1} 0
+test_expr expr-1.7 {i1=10, i2=20} {i2<=i1} 0
+test_expr expr-1.8 {i1=10, i2=20} {i2>i1} 1
+test_expr expr-1.9 {i1=10, i2=20} {i2>=i1} 1
+test_expr expr-1.10 {i1=10, i2=20} {i2!=i1} 1
+test_expr expr-1.11 {i1=10, i2=20} {i2=i1} 0
+test_expr expr-1.12 {i1=10, i2=20} {i2<>i1} 1
+test_expr expr-1.13 {i1=10, i2=20} {i2==i1} 0
+test_expr expr-1.14 {i1=20, i2=20} {i2<i1} 0
+test_expr expr-1.15 {i1=20, i2=20} {i2<=i1} 1
+test_expr expr-1.16 {i1=20, i2=20} {i2>i1} 0
+test_expr expr-1.17 {i1=20, i2=20} {i2>=i1} 1
+test_expr expr-1.18 {i1=20, i2=20} {i2!=i1} 0
+test_expr expr-1.19 {i1=20, i2=20} {i2=i1} 1
+test_expr expr-1.20 {i1=20, i2=20} {i2<>i1} 0
+test_expr expr-1.21 {i1=20, i2=20} {i2==i1} 1
+ifcapable floatingpoint {
+  test_expr expr-1.22 {i1=1, i2=2, r1=3.0} {i1+i2*r1} {7.0}
+  test_expr expr-1.23 {i1=1, i2=2, r1=3.0} {(i1+i2)*r1} {9.0}
+}
+test_expr expr-1.24 {i1=1, i2=2} {min(i1,i2,i1+i2,i1-i2)} {-1}
+test_expr expr-1.25 {i1=1, i2=2} {max(i1,i2,i1+i2,i1-i2)} {3}
+test_expr expr-1.26 {i1=1, i2=2} {max(i1,i2,i1+i2,i1-i2)} {3}
+test_expr expr-1.27 {i1=1, i2=2} {i1==1 AND i2=2} {1}
+test_expr expr-1.28 {i1=1, i2=2} {i1=2 AND i2=1} {0}
+test_expr expr-1.29 {i1=1, i2=2} {i1=1 AND i2=1} {0}
+test_expr expr-1.30 {i1=1, i2=2} {i1=2 AND i2=2} {0}
+test_expr expr-1.31 {i1=1, i2=2} {i1==1 OR i2=2} {1}
+test_expr expr-1.32 {i1=1, i2=2} {i1=2 OR i2=1} {0}
+test_expr expr-1.33 {i1=1, i2=2} {i1=1 OR i2=1} {1}
+test_expr expr-1.34 {i1=1, i2=2} {i1=2 OR i2=2} {1}
+test_expr expr-1.35 {i1=1, i2=2} {i1-i2=-1} {1}
+test_expr expr-1.36 {i1=1, i2=0} {not i1} {0}
+test_expr expr-1.37 {i1=1, i2=0} {not i2} {1}
+test_expr expr-1.38 {i1=1} {-i1} {-1}
+test_expr expr-1.39 {i1=1} {+i1} {1}
+test_expr expr-1.40 {i1=1, i2=2} {+(i2+i1)} {3}
+test_expr expr-1.41 {i1=1, i2=2} {-(i2+i1)} {-3}
+test_expr expr-1.42 {i1=1, i2=2} {i1|i2} {3}
+test_expr expr-1.42b {i1=1, i2=2} {4|2} {6}
+test_expr expr-1.43 {i1=1, i2=2} {i1&i2} {0}
+test_expr expr-1.43b {i1=1, i2=2} {4&5} {4}
+test_expr expr-1.44 {i1=1} {~i1} {-2}
+test_expr expr-1.44b {i1=NULL} {~i1} {{}}
+test_expr expr-1.45a {i1=1, i2=3} {i1<<i2} {8}
+test_expr expr-1.45b {i1=1, i2=-3} {i1>>i2} {8}
+test_expr expr-1.45c {i1=1, i2=0} {i1<<i2} {1}
+test_expr expr-1.45d {i1=1, i2=62} {i1<<i2} {4611686018427387904}
+test_expr expr-1.45e {i1=1, i2=63} {i1<<i2} {-9223372036854775808}
+test_expr expr-1.45f {i1=1, i2=64} {i1<<i2} {0}
+test_expr expr-1.45g {i1=32, i2=-9223372036854775808} {i1>>i2} {0}
+test_expr expr-1.46a {i1=32, i2=3} {i1>>i2} {4}
+test_expr expr-1.46b {i1=32, i2=6} {i1>>i2} {0}
+test_expr expr-1.46c {i1=-32, i2=3} {i1>>i2} {-4}
+test_expr expr-1.46d {i1=-32, i2=100} {i1>>i2} {-1}
+test_expr expr-1.46e {i1=32, i2=-3} {i1>>i2} {256}
+test_expr expr-1.47 {i1=9999999999, i2=8888888888} {i1<i2} 0
+test_expr expr-1.48 {i1=9999999999, i2=8888888888} {i1=i2} 0
+test_expr expr-1.49 {i1=9999999999, i2=8888888888} {i1>i2} 1
+test_expr expr-1.50 {i1=99999999999, i2=99999999998} {i1<i2} 0
+test_expr expr-1.51 {i1=99999999999, i2=99999999998} {i1=i2} 0
+test_expr expr-1.52 {i1=99999999999, i2=99999999998} {i1>i2} 1
+test_expr expr-1.53 {i1=099999999999, i2=99999999999} {i1<i2} 0
+test_expr expr-1.54 {i1=099999999999, i2=99999999999} {i1=i2} 1
+test_expr expr-1.55 {i1=099999999999, i2=99999999999} {i1>i2} 0
+test_expr expr-1.56 {i1=25, i2=11} {i1%i2} 3
+test_expr expr-1.58 {i1=NULL, i2=1} {coalesce(i1+i2,99)} 99
+test_expr expr-1.59 {i1=1, i2=NULL} {coalesce(i1+i2,99)} 99
+test_expr expr-1.60 {i1=NULL, i2=NULL} {coalesce(i1+i2,99)} 99
+test_expr expr-1.61 {i1=NULL, i2=1} {coalesce(i1-i2,99)} 99
+test_expr expr-1.62 {i1=1, i2=NULL} {coalesce(i1-i2,99)} 99
+test_expr expr-1.63 {i1=NULL, i2=NULL} {coalesce(i1-i2,99)} 99
+test_expr expr-1.64 {i1=NULL, i2=1} {coalesce(i1*i2,99)} 99
+test_expr expr-1.65 {i1=1, i2=NULL} {coalesce(i1*i2,99)} 99
+test_expr expr-1.66 {i1=NULL, i2=NULL} {coalesce(i1*i2,99)} 99
+test_expr expr-1.67 {i1=NULL, i2=1} {coalesce(i1/i2,99)} 99
+test_expr expr-1.68 {i1=1, i2=NULL} {coalesce(i1/i2,99)} 99
+test_expr expr-1.69 {i1=NULL, i2=NULL} {coalesce(i1/i2,99)} 99
+test_expr expr-1.70 {i1=NULL, i2=1} {coalesce(i1<i2,99)} 99
+test_expr expr-1.71 {i1=1, i2=NULL} {coalesce(i1>i2,99)} 99
+test_expr expr-1.72 {i1=NULL, i2=NULL} {coalesce(i1<=i2,99)} 99
+test_expr expr-1.73 {i1=NULL, i2=1} {coalesce(i1>=i2,99)} 99
+test_expr expr-1.74 {i1=1, i2=NULL} {coalesce(i1!=i2,99)} 99
+test_expr expr-1.75 {i1=NULL, i2=NULL} {coalesce(i1==i2,99)} 99
+test_expr expr-1.76 {i1=NULL, i2=NULL} {coalesce(not i1,99)} 99
+test_expr expr-1.77 {i1=NULL, i2=NULL} {coalesce(-i1,99)} 99
+test_expr expr-1.78 {i1=NULL, i2=NULL} {coalesce(i1 IS NULL AND i2=5,99)} 99
+test_expr expr-1.79 {i1=NULL, i2=NULL} {coalesce(i1 IS NULL OR i2=5,99)} 1
+test_expr expr-1.80 {i1=NULL, i2=NULL} {coalesce(i1=5 AND i2 IS NULL,99)} 99
+test_expr expr-1.81 {i1=NULL, i2=NULL} {coalesce(i1=5 OR i2 IS NULL,99)} 1
+test_expr expr-1.82 {i1=NULL, i2=3} {coalesce(min(i1,i2,1),99)} 99
+test_expr expr-1.83 {i1=NULL, i2=3} {coalesce(max(i1,i2,1),99)} 99
+test_expr expr-1.84 {i1=3, i2=NULL} {coalesce(min(i1,i2,1),99)} 99
+test_expr expr-1.85 {i1=3, i2=NULL} {coalesce(max(i1,i2,1),99)} 99
+test_expr expr-1.86 {i1=3, i2=8} {5 between i1 and i2} 1
+test_expr expr-1.87 {i1=3, i2=8} {5 not between i1 and i2} 0
+test_expr expr-1.88 {i1=3, i2=8} {55 between i1 and i2} 0
+test_expr expr-1.89 {i1=3, i2=8} {55 not between i1 and i2} 1
+test_expr expr-1.90 {i1=3, i2=NULL} {5 between i1 and i2} {{}}
+test_expr expr-1.91 {i1=3, i2=NULL} {5 not between i1 and i2} {{}}
+test_expr expr-1.92 {i1=3, i2=NULL} {2 between i1 and i2} 0
+test_expr expr-1.93 {i1=3, i2=NULL} {2 not between i1 and i2} 1
+test_expr expr-1.94 {i1=NULL, i2=8} {2 between i1 and i2} {{}}
+test_expr expr-1.95 {i1=NULL, i2=8} {2 not between i1 and i2} {{}}
+test_expr expr-1.94 {i1=NULL, i2=8} {55 between i1 and i2} 0
+test_expr expr-1.95 {i1=NULL, i2=8} {55 not between i1 and i2} 1
+test_expr expr-1.96 {i1=NULL, i2=3} {coalesce(i1<<i2,99)} 99
+test_expr expr-1.97 {i1=32, i2=NULL} {coalesce(i1>>i2,99)} 99
+test_expr expr-1.98 {i1=NULL, i2=NULL} {coalesce(i1|i2,99)} 99
+test_expr expr-1.99 {i1=32, i2=NULL} {coalesce(i1&i2,99)} 99
+test_expr expr-1.100 {i1=1, i2=''} {i1=i2} 0
+test_expr expr-1.101 {i1=0, i2=''} {i1=i2} 0
+
+# Check for proper handling of 64-bit integer values.
+#
+if {[working_64bit_int]} {
+  test_expr expr-1.102 {i1=40, i2=1} {i2<<i1} 1099511627776
+}
+
+ifcapable floatingpoint {
+  test_expr expr-1.103 {i1=0} {(-2147483648.0 % -1)} 0.0
+  test_expr expr-1.104 {i1=0} {(-9223372036854775808.0 % -1)} 0.0
+  test_expr expr-1.105 {i1=0} {(-9223372036854775808.0 / -1)>1} 1
+}
+
+if {[working_64bit_int]} {
+  test_realnum_expr expr-1.106 {i1=0} {-9223372036854775808/-1} 9.22337203685478e+18
+}
+
+test_expr expr-1.107 {i1=0} {-9223372036854775808%-1} 0
+test_expr expr-1.108 {i1=0} {1%0} {{}}
+test_expr expr-1.109 {i1=0} {1/0} {{}}
+
+if {[working_64bit_int]} {
+  test_expr expr-1.110 {i1=0} {-9223372036854775807/-1} 9223372036854775807
+}
+
+test_expr expr-1.111 {i1=NULL, i2=8} {i1 IS i2} 0
+test_expr expr-1.111b {i1=NULL, i2=8} {i1 IS NOT DISTINCT FROM i2} 0
+test_expr expr-1.112 {i1=NULL, i2=NULL} {i1 IS i2} 1
+test_expr expr-1.112b {i1=NULL, i2=NULL} {i1 IS NOT DISTINCT FROM i2} 1
+test_expr expr-1.113 {i1=6, i2=NULL} {i1 IS i2} 0
+test_expr expr-1.113b {i1=6, i2=NULL} {i1 IS NOT DISTINCT FROM i2} 0
+test_expr expr-1.114 {i1=6, i2=6} {i1 IS i2} 1
+test_expr expr-1.114b {i1=6, i2=6} {i1 IS NOT DISTINCT FROM i2} 1
+test_expr expr-1.115 {i1=NULL, i2=8} \
+  {CASE WHEN i1 IS i2 THEN 'yes' ELSE 'no' END} no
+test_expr expr-1.115b {i1=NULL, i2=8} \
+  {CASE WHEN i1 IS NOT DISTINCT FROM i2 THEN 'yes' ELSE 'no' END} no
+test_expr expr-1.116 {i1=NULL, i2=NULL} \
+  {CASE WHEN i1 IS i2 THEN 'yes' ELSE 'no' END} yes
+test_expr expr-1.116b {i1=NULL, i2=NULL} \
+  {CASE WHEN i1 IS NOT DISTINCT FROM i2 THEN 'yes' ELSE 'no' END} yes
+test_expr expr-1.117 {i1=6, i2=NULL} \
+  {CASE WHEN i1 IS i2 THEN 'yes' ELSE 'no' END} no
+test_expr expr-1.117b {i1=6, i2=NULL} \
+  {CASE WHEN i1 IS NOT DISTINCT FROM i2 THEN 'yes' ELSE 'no' END} no
+test_expr expr-1.118 {i1=8, i2=8} \
+  {CASE WHEN i1 IS i2 THEN 'yes' ELSE 'no' END} yes
+test_expr expr-1.118b {i1=8, i2=8} \
+  {CASE WHEN i1 IS NOT DISTINCT FROM i2 THEN 'yes' ELSE 'no' END} yes
+test_expr expr-1.119 {i1=NULL, i2=8} {i1 IS NOT i2} 1
+test_expr expr-1.119b {i1=NULL, i2=8} {i1 IS DISTINCT FROM i2} 1
+test_expr expr-1.120 {i1=NULL, i2=NULL} {i1 IS NOT i2} 0
+test_expr expr-1.120b {i1=NULL, i2=NULL} {i1 IS DISTINCT FROM i2} 0
+test_expr expr-1.121 {i1=6, i2=NULL} {i1 IS NOT i2} 1
+test_expr expr-1.121b {i1=6, i2=NULL} {i1 IS DISTINCT FROM i2} 1
+test_expr expr-1.122 {i1=6, i2=6} {i1 IS NOT i2} 0
+test_expr expr-1.122b {i1=6, i2=6} {i1 IS DISTINCT FROM i2} 0
+test_expr expr-1.123 {i1=NULL, i2=8} \
+  {CASE WHEN i1 IS NOT i2 THEN 'yes' ELSE 'no' END} yes
+test_expr expr-1.123b {i1=NULL, i2=8} \
+  {CASE WHEN i1 IS DISTINCT FROM i2 THEN 'yes' ELSE 'no' END} yes
+test_expr expr-1.124 {i1=NULL, i2=NULL} \
+  {CASE WHEN i1 IS NOT i2 THEN 'yes' ELSE 'no' END} no
+test_expr expr-1.124b {i1=NULL, i2=NULL} \
+  {CASE WHEN i1 IS DISTINCT FROM i2 THEN 'yes' ELSE 'no' END} no
+test_expr expr-1.125 {i1=6, i2=NULL} \
+  {CASE WHEN i1 IS NOT i2 THEN 'yes' ELSE 'no' END} yes
+test_expr expr-1.125b {i1=6, i2=NULL} \
+  {CASE WHEN i1 IS DISTINCT FROM i2 THEN 'yes' ELSE 'no' END} yes
+test_expr expr-1.126 {i1=8, i2=8} \
+  {CASE WHEN i1 IS NOT i2 THEN 'yes' ELSE 'no' END} no
+test_expr expr-1.126b {i1=8, i2=8} \
+  {CASE WHEN i1 IS DISTINCT FROM i2 THEN 'yes' ELSE 'no' END} no
+
+do_catchsql_test expr-1.127 {
+  SELECT 1 IS #1;
+} {1 {near "#1": syntax error}}
+
+ifcapable floatingpoint {if {[working_64bit_int]} {
+  test_expr expr-1.200\
+      {i1=9223372036854775806, i2=1} {i1+i2}      9223372036854775807
+  test_realnum_expr expr-1.201\
+      {i1=9223372036854775806, i2=2} {i1+i2}      9.22337203685478e+18
+  test_realnum_expr expr-1.202\
+      {i1=9223372036854775806, i2=100000} {i1+i2} 9.22337203685488e+18
+  test_realnum_expr expr-1.203\
+      {i1=9223372036854775807, i2=0} {i1+i2}      9223372036854775807
+  test_realnum_expr expr-1.204\
+      {i1=9223372036854775807, i2=1} {i1+i2}      9.22337203685478e+18
+  test_realnum_expr expr-1.205\
+      {i2=9223372036854775806, i1=1} {i1+i2}      9223372036854775807
+  test_realnum_expr expr-1.206\
+      {i2=9223372036854775806, i1=2} {i1+i2}      9.22337203685478e+18
+  test_realnum_expr expr-1.207\
+      {i2=9223372036854775806, i1=100000} {i1+i2} 9.22337203685488e+18
+  test_realnum_expr expr-1.208\
+      {i2=9223372036854775807, i1=0} {i1+i2}      9223372036854775807
+  test_realnum_expr expr-1.209\
+      {i2=9223372036854775807, i1=1} {i1+i2}      9.22337203685478e+18
+  test_realnum_expr expr-1.210\
+      {i1=-9223372036854775807, i2=-1} {i1+i2}    -9223372036854775808
+  test_realnum_expr expr-1.211\
+      {i1=-9223372036854775807, i2=-2} {i1+i2}    -9.22337203685478e+18
+  test_realnum_expr expr-1.212\
+      {i1=-9223372036854775807, i2=-100000} {i1+i2} -9.22337203685488e+18
+  test_realnum_expr expr-1.213\
+      {i1=-9223372036854775808, i2=0} {i1+i2}     -9223372036854775808
+  test_realnum_expr expr-1.214\
+      {i1=-9223372036854775808, i2=-1} {i1+i2}    -9.22337203685478e+18
+  test_realnum_expr expr-1.215\
+      {i2=-9223372036854775807, i1=-1} {i1+i2}    -9223372036854775808
+  test_realnum_expr expr-1.216\
+      {i2=-9223372036854775807, i1=-2} {i1+i2}    -9.22337203685478e+18
+  test_realnum_expr expr-1.217\
+      {i2=-9223372036854775807, i1=-100000} {i1+i2} -9.22337203685488e+18
+  test_realnum_expr expr-1.218\
+      {i2=-9223372036854775808, i1=0} {i1+i2}     -9223372036854775808
+  test_realnum_expr expr-1.219\
+      {i2=-9223372036854775808, i1=-1} {i1+i2}    -9.22337203685478e+18
+  test_realnum_expr expr-1.220\
+      {i1=9223372036854775806, i2=-1} {i1-i2}     9223372036854775807
+  test_realnum_expr expr-1.221\
+      {i1=9223372036854775806, i2=-2} {i1-i2}      9.22337203685478e+18
+  test_realnum_expr expr-1.222\
+      {i1=9223372036854775806, i2=-100000} {i1-i2} 9.22337203685488e+18
+  test_realnum_expr expr-1.223\
+      {i1=9223372036854775807, i2=0} {i1-i2}      9223372036854775807
+  test_realnum_expr expr-1.224\
+      {i1=9223372036854775807, i2=-1} {i1-i2}      9.22337203685478e+18
+  test_realnum_expr expr-1.225\
+      {i2=-9223372036854775806, i1=1} {i1-i2}      9223372036854775807
+  test_realnum_expr expr-1.226\
+      {i2=-9223372036854775806, i1=2} {i1-i2}      9.22337203685478e+18
+  test_realnum_expr expr-1.227\
+      {i2=-9223372036854775806, i1=100000} {i1-i2} 9.22337203685488e+18
+  test_realnum_expr expr-1.228\
+      {i2=-9223372036854775807, i1=0} {i1-i2}      9223372036854775807
+  test_realnum_expr expr-1.229\
+      {i2=-9223372036854775807, i1=1} {i1-i2}      9.22337203685478e+18
+  test_realnum_expr expr-1.230\
+      {i1=-9223372036854775807, i2=1} {i1-i2}    -9223372036854775808
+  test_realnum_expr expr-1.231\
+      {i1=-9223372036854775807, i2=2} {i1-i2}    -9.22337203685478e+18
+  test_realnum_expr expr-1.232\
+      {i1=-9223372036854775807, i2=100000} {i1-i2} -9.22337203685488e+18
+  test_realnum_expr expr-1.233\
+      {i1=-9223372036854775808, i2=0} {i1-i2}     -9223372036854775808
+  test_realnum_expr expr-1.234\
+      {i1=-9223372036854775808, i2=1} {i1-i2}    -9.22337203685478e+18
+  test_realnum_expr expr-1.235\
+      {i2=9223372036854775807, i1=-1} {i1-i2}    -9223372036854775808
+  test_realnum_expr expr-1.236\
+      {i2=9223372036854775807, i1=-2} {i1-i2}    -9.22337203685478e+18
+  test_realnum_expr expr-1.237\
+      {i2=9223372036854775807, i1=-100000} {i1-i2} -9.22337203685488e+18
+  test_realnum_expr expr-1.238\
+      {i2=9223372036854775807, i1=0} {i1-i2}     -9223372036854775807
+  test_realnum_expr expr-1.239\
+      {i2=9223372036854775807, i1=-1} {i1-i2}    -9223372036854775808
+
+  test_realnum_expr expr-1.250\
+      {i1=4294967296, i2=2147483648} {i1*i2}      9.22337203685478e+18
+  test_realnum_expr expr-1.251\
+      {i1=4294967296, i2=2147483647} {i1*i2}      9223372032559808512
+  test_realnum_expr expr-1.252\
+      {i1=-4294967296, i2=2147483648} {i1*i2}     -9223372036854775808
+  test_realnum_expr expr-1.253\
+      {i1=-4294967296, i2=2147483647} {i1*i2}     -9223372032559808512
+  test_realnum_expr expr-1.254\
+      {i1=4294967296, i2=-2147483648} {i1*i2}     -9223372036854775808
+  test_realnum_expr expr-1.255\
+      {i1=4294967296, i2=-2147483647} {i1*i2}     -9223372032559808512
+  test_realnum_expr expr-1.256\
+      {i1=-4294967296, i2=-2147483648} {i1*i2}    9.22337203685478e+18
+  test_realnum_expr expr-1.257\
+      {i1=-4294967296, i2=-2147483647} {i1*i2}    9223372032559808512
+
+  test_realnum_expr expr-1.260\
+      {i1=3037000500, i2=3037000500} {i1*i2}      9.22337203700025e+18
+  test_realnum_expr expr-1.261\
+      {i1=3037000500, i2=-3037000500} {i1*i2}     -9.22337203700025e+18
+  test_realnum_expr expr-1.262\
+      {i1=-3037000500, i2=3037000500} {i1*i2}     -9.22337203700025e+18
+  test_realnum_expr expr-1.263\
+      {i1=-3037000500, i2=-3037000500} {i1*i2}    9.22337203700025e+18
+
+  test_realnum_expr expr-1.264\
+      {i1=3037000500, i2=3037000499} {i1*i2}      9223372033963249500
+  test_realnum_expr expr-1.265\
+      {i1=3037000500, i2=-3037000499} {i1*i2}     -9223372033963249500
+  test_realnum_expr expr-1.266\
+      {i1=-3037000500, i2=3037000499} {i1*i2}     -9223372033963249500
+  test_realnum_expr expr-1.267\
+      {i1=-3037000500, i2=-3037000499} {i1*i2}    9223372033963249500
+
+  test_realnum_expr expr-1.268\
+      {i1=3037000499, i2=3037000500} {i1*i2}      9223372033963249500
+  test_realnum_expr expr-1.269\
+      {i1=3037000499, i2=-3037000500} {i1*i2}     -9223372033963249500
+  test_realnum_expr expr-1.270\
+      {i1=-3037000499, i2=3037000500} {i1*i2}     -9223372033963249500
+  test_realnum_expr expr-1.271\
+      {i1=-3037000499, i2=-3037000500} {i1*i2}    9223372033963249500
+
+}}
+
+ifcapable floatingpoint {
+  test_expr expr-2.1 {r1=1.23, r2=2.34} {r1+r2} 3.57
+  test_expr expr-2.2 {r1=1.23, r2=2.34} {r1-r2} -1.11
+  test_expr expr-2.3 {r1=1.23, r2=2.34} {r1*r2} 2.8782
+}
+set tcl_precision 15
+ifcapable floatingpoint {
+  test_expr expr-2.4 {r1=1.23, r2=2.34} {r1/r2} 0.525641025641026
+  test_expr expr-2.5 {r1=1.23, r2=2.34} {r2/r1} 1.90243902439024
+  test_expr expr-2.6 {r1=1.23, r2=2.34} {r2<r1} 0
+  test_expr expr-2.7 {r1=1.23, r2=2.34} {r2<=r1} 0
+  test_expr expr-2.8 {r1=1.23, r2=2.34} {r2>r1} 1
+  test_expr expr-2.9 {r1=1.23, r2=2.34} {r2>=r1} 1
+  test_expr expr-2.10 {r1=1.23, r2=2.34} {r2!=r1} 1
+  test_expr expr-2.11 {r1=1.23, r2=2.34} {r2=r1} 0
+  test_expr expr-2.12 {r1=1.23, r2=2.34} {r2<>r1} 1
+  test_expr expr-2.13 {r1=1.23, r2=2.34} {r2==r1} 0
+  test_expr expr-2.14 {r1=2.34, r2=2.34} {r2<r1} 0
+  test_expr expr-2.15 {r1=2.34, r2=2.34} {r2<=r1} 1
+  test_expr expr-2.16 {r1=2.34, r2=2.34} {r2>r1} 0
+  test_expr expr-2.17 {r1=2.34, r2=2.34} {r2>=r1} 1
+  test_expr expr-2.18 {r1=2.34, r2=2.34} {r2!=r1} 0
+  test_expr expr-2.19 {r1=2.34, r2=2.34} {r2=r1} 1
+  test_expr expr-2.20 {r1=2.34, r2=2.34} {r2<>r1} 0
+  test_expr expr-2.21 {r1=2.34, r2=2.34} {r2==r1} 1
+  test_expr expr-2.22 {r1=1.23, r2=2.34} {min(r1,r2,r1+r2,r1-r2)} {-1.11}
+  test_expr expr-2.23 {r1=1.23, r2=2.34} {max(r1,r2,r1+r2,r1-r2)} {3.57}
+  test_expr expr-2.24 {r1=25.0, r2=11.0} {r1%r2} 3.0
+  test_expr expr-2.25 {r1=1.23, r2=NULL} {coalesce(r1+r2,99.0)} 99.0
+  test_expr expr-2.26 {r1=1e300, r2=1e300} {coalesce((r1*r2)*0.0,99.0)} 99.0
+  test_expr expr-2.26b {r1=1e300, r2=-1e300} {coalesce((r1*r2)*0.0,99.0)} 99.0
+  test_expr expr-2.27 {r1=1.1, r2=0.0} {r1/r2} {{}}
+  test_expr expr-2.28 {r1=1.1, r2=0.0} {r1%r2} {{}}
+}
+
+test_expr expr-3.1 {t1='abc', t2='xyz'} {t1<t2} 1
+test_expr expr-3.2 {t1='xyz', t2='abc'} {t1<t2} 0
+test_expr expr-3.3 {t1='abc', t2='abc'} {t1<t2} 0
+test_expr expr-3.4 {t1='abc', t2='xyz'} {t1<=t2} 1
+test_expr expr-3.5 {t1='xyz', t2='abc'} {t1<=t2} 0
+test_expr expr-3.6 {t1='abc', t2='abc'} {t1<=t2} 1
+test_expr expr-3.7 {t1='abc', t2='xyz'} {t1>t2} 0
+test_expr expr-3.8 {t1='xyz', t2='abc'} {t1>t2} 1
+test_expr expr-3.9 {t1='abc', t2='abc'} {t1>t2} 0
+test_expr expr-3.10 {t1='abc', t2='xyz'} {t1>=t2} 0
+test_expr expr-3.11 {t1='xyz', t2='abc'} {t1>=t2} 1
+test_expr expr-3.12 {t1='abc', t2='abc'} {t1>=t2} 1
+test_expr expr-3.13 {t1='abc', t2='xyz'} {t1=t2} 0
+test_expr expr-3.14 {t1='xyz', t2='abc'} {t1=t2} 0
+test_expr expr-3.15 {t1='abc', t2='abc'} {t1=t2} 1
+test_expr expr-3.16 {t1='abc', t2='xyz'} {t1==t2} 0
+test_expr expr-3.17 {t1='xyz', t2='abc'} {t1==t2} 0
+test_expr expr-3.18 {t1='abc', t2='abc'} {t1==t2} 1
+test_expr expr-3.19 {t1='abc', t2='xyz'} {t1<>t2} 1
+test_expr expr-3.20 {t1='xyz', t2='abc'} {t1<>t2} 1
+test_expr expr-3.21 {t1='abc', t2='abc'} {t1<>t2} 0
+test_expr expr-3.22 {t1='abc', t2='xyz'} {t1!=t2} 1
+test_expr expr-3.23 {t1='xyz', t2='abc'} {t1!=t2} 1
+test_expr expr-3.24 {t1='abc', t2='abc'} {t1!=t2} 0
+test_expr expr-3.25 {t1=NULL, t2='hi'} {t1 isnull} 1
+test_expr expr-3.25b {t1=NULL, t2='hi'} {t1 is null} 1
+test_expr expr-3.26 {t1=NULL, t2='hi'} {t2 isnull} 0
+test_expr expr-3.27 {t1=NULL, t2='hi'} {t1 notnull} 0
+test_expr expr-3.28 {t1=NULL, t2='hi'} {t2 notnull} 1
+test_expr expr-3.28b {t1=NULL, t2='hi'} {t2 is not null} 1
+test_expr expr-3.29 {t1='xyz', t2='abc'} {t1||t2} {xyzabc}
+test_expr expr-3.30 {t1=NULL, t2='abc'} {t1||t2} {{}}
+test_expr expr-3.31 {t1='xyz', t2=NULL} {t1||t2} {{}}
+test_expr expr-3.32 {t1='xyz', t2='abc'} {t1||' hi '||t2} {{xyz hi abc}}
+test_expr epxr-3.33 {t1='abc', t2=NULL} {coalesce(t1<t2,99)} 99
+test_expr epxr-3.34 {t1='abc', t2=NULL} {coalesce(t2<t1,99)} 99
+test_expr epxr-3.35 {t1='abc', t2=NULL} {coalesce(t1>t2,99)} 99
+test_expr epxr-3.36 {t1='abc', t2=NULL} {coalesce(t2>t1,99)} 99
+test_expr epxr-3.37 {t1='abc', t2=NULL} {coalesce(t1<=t2,99)} 99
+test_expr epxr-3.38 {t1='abc', t2=NULL} {coalesce(t2<=t1,99)} 99
+test_expr epxr-3.39 {t1='abc', t2=NULL} {coalesce(t1>=t2,99)} 99
+test_expr epxr-3.40 {t1='abc', t2=NULL} {coalesce(t2>=t1,99)} 99
+test_expr epxr-3.41 {t1='abc', t2=NULL} {coalesce(t1==t2,99)} 99
+test_expr epxr-3.42 {t1='abc', t2=NULL} {coalesce(t2==t1,99)} 99
+test_expr epxr-3.43 {t1='abc', t2=NULL} {coalesce(t1!=t2,99)} 99
+test_expr epxr-3.44 {t1='abc', t2=NULL} {coalesce(t2!=t1,99)} 99
+
+test_expr expr-4.1 {t1='abc', t2='Abc'} {t1<t2} 0
+test_expr expr-4.2 {t1='abc', t2='Abc'} {t1>t2} 1
+test_expr expr-4.3 {t1='abc', t2='Bbc'} {t1<t2} 0
+test_expr expr-4.4 {t1='abc', t2='Bbc'} {t1>t2} 1
+test_expr expr-4.5 {t1='0', t2='0.0'} {t1==t2} 0
+test_expr expr-4.6 {t1='0.000', t2='0.0'} {t1==t2} 0
+test_expr expr-4.7 {t1=' 0.000', t2=' 0.0'} {t1==t2} 0
+test_expr expr-4.8 {t1='0.0', t2='abc'} {t1<t2} 1
+test_expr expr-4.9 {t1='0.0', t2='abc'} {t1==t2} 0
+
+ifcapable floatingpoint {
+  test_expr expr-4.10 {r1='0.0', r2='abc'} {r1>r2} 0
+  test_expr expr-4.11 {r1='abc', r2='Abc'} {r1<r2} 0
+  test_expr expr-4.12 {r1='abc', r2='Abc'} {r1>r2} 1
+  test_expr expr-4.13 {r1='abc', r2='Bbc'} {r1<r2} 0
+  test_expr expr-4.14 {r1='abc', r2='Bbc'} {r1>r2} 1
+  test_expr expr-4.15 {r1='0', r2='0.0'} {r1==r2} 1
+  test_expr expr-4.16 {r1='0.000', r2='0.0'} {r1==r2} 1
+  test_expr expr-4.17 {r1=' 0.000', r2=' 0.0'} {r1==r2} 1
+  test_expr expr-4.18 {r1='0.0', r2='abc'} {r1<r2} 1
+  test_expr expr-4.19 {r1='0.0', r2='abc'} {r1==r2} 0
+  test_expr expr-4.20 {r1='0.0', r2='abc'} {r1>r2} 0
+}
+
+# CSL is true if LIKE is case sensitive and false if not.
+# NCSL is the opposite.  Use these variables as the result
+# on operations where case makes a difference.
+set CSL $sqlite_options(casesensitivelike)
+set NCSL [expr {!$CSL}]
+
+test_expr expr-5.1 {t1='abc', t2='xyz'} {t1 LIKE t2} 0
+test_expr expr-5.2a {t1='abc', t2='abc'} {t1 LIKE t2} 1
+test_expr expr-5.2b {t1='abc', t2='ABC'} {t1 LIKE t2} $NCSL
+test_expr expr-5.3a {t1='abc', t2='a_c'} {t1 LIKE t2} 1
+test_expr expr-5.3b {t1='abc', t2='A_C'} {t1 LIKE t2} $NCSL
+test_expr expr-5.4 {t1='abc', t2='abc_'} {t1 LIKE t2} 0
+test_expr expr-5.5a {t1='abc', t2='a%c'} {t1 LIKE t2} 1
+test_expr expr-5.5b {t1='abc', t2='A%C'} {t1 LIKE t2} $NCSL
+test_expr expr-5.5c {t1='abdc', t2='a%c'} {t1 LIKE t2} 1
+test_expr expr-5.5d {t1='ac', t2='a%c'} {t1 LIKE t2} 1
+test_expr expr-5.5e {t1='ac', t2='A%C'} {t1 LIKE t2} $NCSL
+test_expr expr-5.6a {t1='abxyzzyc', t2='a%c'} {t1 LIKE t2} 1
+test_expr expr-5.6b {t1='abxyzzyc', t2='A%C'} {t1 LIKE t2} $NCSL
+test_expr expr-5.7a {t1='abxyzzy', t2='a%c'} {t1 LIKE t2} 0
+test_expr expr-5.7b {t1='abxyzzy', t2='A%C'} {t1 LIKE t2} 0
+test_expr expr-5.8a {t1='abxyzzycx', t2='a%c'} {t1 LIKE t2} 0
+test_expr expr-5.8b {t1='abxyzzycy', t2='a%cx'} {t1 LIKE t2} 0
+test_expr expr-5.8c {t1='abxyzzycx', t2='A%C'} {t1 LIKE t2} 0
+test_expr expr-5.8d {t1='abxyzzycy', t2='A%CX'} {t1 LIKE t2} 0
+test_expr expr-5.9a {t1='abc', t2='a%_c'} {t1 LIKE t2} 1
+test_expr expr-5.9b {t1='ac', t2='a%_c'} {t1 LIKE t2} 0
+test_expr expr-5.9c {t1='abc', t2='A%_C'} {t1 LIKE t2} $NCSL
+test_expr expr-5.9d {t1='ac', t2='A%_C'} {t1 LIKE t2} 0
+test_expr expr-5.10a {t1='abxyzzyc', t2='a%_c'} {t1 LIKE t2} 1
+test_expr expr-5.10b {t1='abxyzzyc', t2='A%_C'} {t1 LIKE t2} $NCSL
+test_expr expr-5.11 {t1='abc', t2='xyz'} {t1 NOT LIKE t2} 1
+test_expr expr-5.12a {t1='abc', t2='abc'} {t1 NOT LIKE t2} 0
+test_expr expr-5.12b {t1='abc', t2='ABC'} {t1 NOT LIKE t2} $CSL
+test_expr expr-5.13  {t1='A'}  {t1 LIKE 'A%_'} 0
+test_expr expr-5.14  {t1='AB'} {t1 LIKE 'A%b' ESCAPE 'b'} 0
+
+# The following tests only work on versions of TCL that support Unicode
+#
+if {"\u1234"!="u1234"} {
+  test_expr expr-5.13a "t1='a\u0080c', t2='a_c'" {t1 LIKE t2} 1
+  test_expr expr-5.13b "t1='a\u0080c', t2='A_C'" {t1 LIKE t2} $NCSL
+  test_expr expr-5.14a "t1='a\u07FFc', t2='a_c'" {t1 LIKE t2} 1
+  test_expr expr-5.14b "t1='a\u07FFc', t2='A_C'" {t1 LIKE t2} $NCSL
+  test_expr expr-5.15a "t1='a\u0800c', t2='a_c'" {t1 LIKE t2} 1
+  test_expr expr-5.15b "t1='a\u0800c', t2='A_C'" {t1 LIKE t2} $NCSL
+  test_expr expr-5.16a "t1='a\uFFFFc', t2='a_c'" {t1 LIKE t2} 1
+  test_expr expr-5.16b "t1='a\uFFFFc', t2='A_C'" {t1 LIKE t2} $NCSL
+  test_expr expr-5.17 "t1='a\u0080', t2='A__'" {t1 LIKE t2} 0
+  test_expr expr-5.18 "t1='a\u07FF', t2='A__'" {t1 LIKE t2} 0
+  test_expr expr-5.19 "t1='a\u0800', t2='A__'" {t1 LIKE t2} 0
+  test_expr expr-5.20 "t1='a\uFFFF', t2='A__'" {t1 LIKE t2} 0
+  test_expr expr-5.21a "t1='ax\uABCD', t2='a_\uABCD'" {t1 LIKE t2} 1
+  test_expr expr-5.21b "t1='ax\uABCD', t2='A_\uABCD'" {t1 LIKE t2} $NCSL
+  test_expr expr-5.22a "t1='ax\u1234', t2='a%\u1234'" {t1 LIKE t2} 1
+  test_expr expr-5.22b "t1='ax\u1234', t2='A%\u1234'" {t1 LIKE t2} $NCSL
+  test_expr expr-5.23a "t1='ax\uFEDC', t2='a_%'" {t1 LIKE t2} 1
+  test_expr expr-5.23b "t1='ax\uFEDC', t2='A_%'" {t1 LIKE t2} $NCSL
+  test_expr expr-5.24a "t1='ax\uFEDCy\uFEDC', t2='a%\uFEDC'" {t1 LIKE t2} 1
+  test_expr expr-5.24b "t1='ax\uFEDCy\uFEDC', t2='A%\uFEDC'" {t1 LIKE t2} $NCSL
+}
+
+test_expr expr-5.54 {t1='abc', t2=NULL} {t1 LIKE t2} {{}}
+test_expr expr-5.55 {t1='abc', t2=NULL} {t1 NOT LIKE t2} {{}}
+test_expr expr-5.56 {t1='abc', t2=NULL} {t2 LIKE t1} {{}}
+test_expr expr-5.57 {t1='abc', t2=NULL} {t2 NOT LIKE t1} {{}}
+
+# LIKE expressions that use ESCAPE characters.
+test_expr expr-5.58a {t1='abc', t2='a_c'}   {t1 LIKE t2 ESCAPE '7'} 1
+test_expr expr-5.58b {t1='abc', t2='A_C'}   {t1 LIKE t2 ESCAPE '7'} $NCSL
+test_expr expr-5.59a {t1='a_c', t2='a7_c'}  {t1 LIKE t2 ESCAPE '7'} 1
+test_expr expr-5.59b {t1='a_c', t2='A7_C'}  {t1 LIKE t2 ESCAPE '7'} $NCSL
+test_expr expr-5.60a {t1='abc', t2='a7_c'}  {t1 LIKE t2 ESCAPE '7'} 0
+test_expr expr-5.60b {t1='abc', t2='A7_C'}  {t1 LIKE t2 ESCAPE '7'} 0
+test_expr expr-5.61a {t1='a7Xc', t2='a7_c'} {t1 LIKE t2 ESCAPE '7'} 0
+test_expr expr-5.61b {t1='a7Xc', t2='A7_C'} {t1 LIKE t2 ESCAPE '7'} 0
+test_expr expr-5.62a {t1='abcde', t2='a%e'} {t1 LIKE t2 ESCAPE '7'} 1
+test_expr expr-5.62b {t1='abcde', t2='A%E'} {t1 LIKE t2 ESCAPE '7'} $NCSL
+test_expr expr-5.63a {t1='abcde', t2='a7%e'} {t1 LIKE t2 ESCAPE '7'} 0
+test_expr expr-5.63b {t1='abcde', t2='A7%E'} {t1 LIKE t2 ESCAPE '7'} 0
+test_expr expr-5.64a {t1='a7cde', t2='a7%e'} {t1 LIKE t2 ESCAPE '7'} 0
+test_expr expr-5.64b {t1='a7cde', t2='A7%E'} {t1 LIKE t2 ESCAPE '7'} 0
+test_expr expr-5.65a {t1='a7cde', t2='a77%e'} {t1 LIKE t2 ESCAPE '7'} 1
+test_expr expr-5.65b {t1='a7cde', t2='A77%E'} {t1 LIKE t2 ESCAPE '7'} $NCSL
+test_expr expr-5.66a {t1='abc7', t2='a%77'} {t1 LIKE t2 ESCAPE '7'} 1
+test_expr expr-5.66b {t1='abc7', t2='A%77'} {t1 LIKE t2 ESCAPE '7'} $NCSL
+test_expr expr-5.67a {t1='abc_', t2='a%7_'} {t1 LIKE t2 ESCAPE '7'} 1
+test_expr expr-5.67b {t1='abc_', t2='A%7_'} {t1 LIKE t2 ESCAPE '7'} $NCSL
+test_expr expr-5.68a {t1='abc7', t2='a%7_'} {t1 LIKE t2 ESCAPE '7'} 0
+test_expr expr-5.68b {t1='abc7', t2='A%7_'} {t1 LIKE t2 ESCAPE '7'} 0
+
+# These are the same test as the block above, but using a multi-byte 
+# character as the escape character.
+if {"\u1234"!="u1234"} {
+  test_expr expr-5.69a "t1='abc', t2='a_c'" \
+      "t1 LIKE t2 ESCAPE '\u1234'" 1
+  test_expr expr-5.69b "t1='abc', t2='A_C'" \
+      "t1 LIKE t2 ESCAPE '\u1234'" $NCSL
+  test_expr expr-5.70a "t1='a_c', t2='a\u1234_c'" \
+      "t1 LIKE t2 ESCAPE '\u1234'" 1
+  test_expr expr-5.70b "t1='a_c', t2='A\u1234_C'" \
+      "t1 LIKE t2 ESCAPE '\u1234'" $NCSL
+  test_expr expr-5.71a "t1='abc', t2='a\u1234_c'" \
+       "t1 LIKE t2 ESCAPE '\u1234'" 0
+  test_expr expr-5.71b "t1='abc', t2='A\u1234_C'" \
+       "t1 LIKE t2 ESCAPE '\u1234'" 0
+  test_expr expr-5.72a "t1='a\u1234Xc', t2='a\u1234_c'" \
+      "t1 LIKE t2 ESCAPE '\u1234'" 0
+  test_expr expr-5.72b "t1='a\u1234Xc', t2='A\u1234_C'" \
+      "t1 LIKE t2 ESCAPE '\u1234'" 0
+  test_expr expr-5.73a "t1='abcde', t2='a%e'" \
+      "t1 LIKE t2 ESCAPE '\u1234'" 1
+  test_expr expr-5.73b "t1='abcde', t2='A%E'" \
+      "t1 LIKE t2 ESCAPE '\u1234'" $NCSL
+  test_expr expr-5.74a "t1='abcde', t2='a\u1234%e'" \
+      "t1 LIKE t2 ESCAPE '\u1234'" 0
+  test_expr expr-5.74b "t1='abcde', t2='A\u1234%E'" \
+      "t1 LIKE t2 ESCAPE '\u1234'" 0
+  test_expr expr-5.75a "t1='a\u1234cde', t2='a\u1234%e'" \
+      "t1 LIKE t2 ESCAPE '\u1234'" 0
+  test_expr expr-5.75b "t1='a\u1234cde', t2='A\u1234%E'" \
+      "t1 LIKE t2 ESCAPE '\u1234'" 0
+  test_expr expr-5.76a "t1='a\u1234cde', t2='a\u1234\u1234%e'" \
+      "t1 LIKE t2 ESCAPE '\u1234'" 1
+  test_expr expr-5.76b "t1='a\u1234cde', t2='A\u1234\u1234%E'" \
+      "t1 LIKE t2 ESCAPE '\u1234'" $NCSL
+  test_expr expr-5.77a "t1='abc\u1234', t2='a%\u1234\u1234'" \
+      "t1 LIKE t2 ESCAPE '\u1234'" 1
+  test_expr expr-5.77b "t1='abc\u1234', t2='A%\u1234\u1234'" \
+      "t1 LIKE t2 ESCAPE '\u1234'" $NCSL
+  test_expr expr-5.78a "t1='abc_', t2='a%\u1234_'" \
+      "t1 LIKE t2 ESCAPE '\u1234'" 1
+  test_expr expr-5.78b "t1='abc_', t2='A%\u1234_'" \
+      "t1 LIKE t2 ESCAPE '\u1234'" $NCSL
+  test_expr expr-5.79a "t1='abc\u1234', t2='a%\u1234_'" \
+      "t1 LIKE t2 ESCAPE '\u1234'" 0
+  test_expr expr-5.79b "t1='abc\u1234', t2='A%\u1234_'" \
+      "t1 LIKE t2 ESCAPE '\u1234'" 0
+}
+
+test_expr expr-6.1 {t1='abc', t2='xyz'} {t1 GLOB t2} 0
+test_expr expr-6.2 {t1='abc', t2='ABC'} {t1 GLOB t2} 0
+test_expr expr-6.3 {t1='abc', t2='A?C'} {t1 GLOB t2} 0
+test_expr expr-6.4 {t1='abc', t2='a?c'} {t1 GLOB t2} 1
+test_expr expr-6.5 {t1='abc', t2='abc?'} {t1 GLOB t2} 0
+test_expr expr-6.6 {t1='abc', t2='A*C'} {t1 GLOB t2} 0
+test_expr expr-6.7 {t1='abc', t2='a*c'} {t1 GLOB t2} 1
+test_expr expr-6.8 {t1='abxyzzyc', t2='a*c'} {t1 GLOB t2} 1
+test_expr expr-6.9 {t1='abxyzzy', t2='a*c'} {t1 GLOB t2} 0
+test_expr expr-6.10 {t1='abxyzzycx', t2='a*c'} {t1 GLOB t2} 0
+test_expr expr-6.11 {t1='abc', t2='xyz'} {t1 NOT GLOB t2} 1
+test_expr expr-6.12 {t1='abc', t2='abc'} {t1 NOT GLOB t2} 0
+test_expr expr-6.13 {t1='abc', t2='a[bx]c'} {t1 GLOB t2} 1
+test_expr expr-6.14 {t1='abc', t2='a[cx]c'} {t1 GLOB t2} 0
+test_expr expr-6.15 {t1='abc', t2='a[a-d]c'} {t1 GLOB t2} 1
+test_expr expr-6.16 {t1='abc', t2='a[^a-d]c'} {t1 GLOB t2} 0
+test_expr expr-6.17 {t1='abc', t2='a[A-Dc]c'} {t1 GLOB t2} 0
+test_expr expr-6.18 {t1='abc', t2='a[^A-Dc]c'} {t1 GLOB t2} 1
+test_expr expr-6.19 {t1='abc', t2='a[]b]c'} {t1 GLOB t2} 1
+test_expr expr-6.20 {t1='abc', t2='a[^]b]c'} {t1 GLOB t2} 0
+test_expr expr-6.21a {t1='abcdefg', t2='a*[de]g'} {t1 GLOB t2} 0
+test_expr expr-6.21b {t1='abcdefg', t2='a*[df]g'} {t1 GLOB t2} 1
+test_expr expr-6.21c {t1='abcdefg', t2='a*[d-h]g'} {t1 GLOB t2} 1
+test_expr expr-6.21d {t1='abcdefg', t2='a*[b-e]g'} {t1 GLOB t2} 0
+test_expr expr-6.22a {t1='abcdefg', t2='a*[^de]g'} {t1 GLOB t2} 1
+test_expr expr-6.22b {t1='abcdefg', t2='a*[^def]g'} {t1 GLOB t2} 0
+test_expr expr-6.23 {t1='abcdefg', t2='a*?g'} {t1 GLOB t2} 1
+test_expr expr-6.24 {t1='ac', t2='a*c'} {t1 GLOB t2} 1
+test_expr expr-6.25 {t1='ac', t2='a*?c'} {t1 GLOB t2} 0
+test_expr expr-6.26 {t1='a*c', t2='a[*]c'} {t1 GLOB t2} 1
+test_expr expr-6.27 {t1='a?c', t2='a[?]c'} {t1 GLOB t2} 1
+test_expr expr-6.28 {t1='a[c', t2='a[[]c'} {t1 GLOB t2} 1
+
+
+# These tests only work on versions of TCL that support Unicode
+#
+if {"\u1234"!="u1234"} {
+  test_expr expr-6.26 "t1='a\u0080c', t2='a?c'" {t1 GLOB t2} 1
+  test_expr expr-6.27 "t1='a\u07ffc', t2='a?c'" {t1 GLOB t2} 1
+  test_expr expr-6.28 "t1='a\u0800c', t2='a?c'" {t1 GLOB t2} 1
+  test_expr expr-6.29 "t1='a\uffffc', t2='a?c'" {t1 GLOB t2} 1
+  test_expr expr-6.30 "t1='a\u1234', t2='a?'" {t1 GLOB t2} 1
+  test_expr expr-6.31 "t1='a\u1234', t2='a??'" {t1 GLOB t2} 0
+  test_expr expr-6.32 "t1='ax\u1234', t2='a?\u1234'" {t1 GLOB t2} 1
+  test_expr expr-6.33 "t1='ax\u1234', t2='a*\u1234'" {t1 GLOB t2} 1
+  test_expr expr-6.34 "t1='ax\u1234y\u1234', t2='a*\u1234'" {t1 GLOB t2} 1
+  test_expr expr-6.35 "t1='a\u1234b', t2='a\[x\u1234y\]b'" {t1 GLOB t2} 1
+  test_expr expr-6.36 "t1='a\u1234b', t2='a\[\u1233-\u1235\]b'" {t1 GLOB t2} 1
+  test_expr expr-6.37 "t1='a\u1234b', t2='a\[\u1234-\u124f\]b'" {t1 GLOB t2} 1
+  test_expr expr-6.38 "t1='a\u1234b', t2='a\[\u1235-\u124f\]b'" {t1 GLOB t2} 0
+  test_expr expr-6.39 "t1='a\u1234b', t2='a\[a-\u1235\]b'" {t1 GLOB t2} 1
+  test_expr expr-6.40 "t1='a\u1234b', t2='a\[a-\u1234\]b'" {t1 GLOB t2} 1
+  test_expr expr-6.41 "t1='a\u1234b', t2='a\[a-\u1233\]b'" {t1 GLOB t2} 0
+}
+
+test_expr expr-6.51 {t1='ABC', t2='xyz'} {t1 GLOB t2} 0
+test_expr expr-6.52 {t1='ABC', t2='abc'} {t1 GLOB t2} 0
+test_expr expr-6.53 {t1='ABC', t2='a?c'} {t1 GLOB t2} 0
+test_expr expr-6.54 {t1='ABC', t2='A?C'} {t1 GLOB t2} 1
+test_expr expr-6.55 {t1='ABC', t2='abc?'} {t1 GLOB t2} 0
+test_expr expr-6.56 {t1='ABC', t2='a*c'} {t1 GLOB t2} 0
+test_expr expr-6.57 {t1='ABC', t2='A*C'} {t1 GLOB t2} 1
+test_expr expr-6.58 {t1='ABxyzzyC', t2='A*C'} {t1 GLOB t2} 1
+test_expr expr-6.59 {t1='ABxyzzy', t2='A*C'} {t1 GLOB t2} 0
+test_expr expr-6.60 {t1='ABxyzzyCx', t2='A*C'} {t1 GLOB t2} 0
+test_expr expr-6.61 {t1='ABC', t2='xyz'} {t1 NOT GLOB t2} 1
+test_expr expr-6.62 {t1='ABC', t2='ABC'} {t1 NOT GLOB t2} 0
+test_expr expr-6.63 {t1='ABC', t2='A[Bx]C'} {t1 GLOB t2} 1
+test_expr expr-6.64 {t1='ABC', t2='A[Cx]C'} {t1 GLOB t2} 0
+test_expr expr-6.65 {t1='ABC', t2='A[A-D]C'} {t1 GLOB t2} 1
+test_expr expr-6.66 {t1='ABC', t2='A[^A-D]C'} {t1 GLOB t2} 0
+test_expr expr-6.67 {t1='ABC', t2='A[a-dC]C'} {t1 GLOB t2} 0
+test_expr expr-6.68 {t1='ABC', t2='A[^a-dC]C'} {t1 GLOB t2} 1
+test_expr expr-6.69a {t1='ABC', t2='A[]B]C'} {t1 GLOB t2} 1
+test_expr expr-6.69b {t1='A]C', t2='A[]B]C'} {t1 GLOB t2} 1
+test_expr expr-6.70a {t1='ABC', t2='A[^]B]C'} {t1 GLOB t2} 0
+test_expr expr-6.70b {t1='AxC', t2='A[^]B]C'} {t1 GLOB t2} 1
+test_expr expr-6.70c {t1='A]C', t2='A[^]B]C'} {t1 GLOB t2} 0
+test_expr expr-6.71 {t1='ABCDEFG', t2='A*[DE]G'} {t1 GLOB t2} 0
+test_expr expr-6.72 {t1='ABCDEFG', t2='A*[^DE]G'} {t1 GLOB t2} 1
+test_expr expr-6.73 {t1='ABCDEFG', t2='A*?G'} {t1 GLOB t2} 1
+test_expr expr-6.74 {t1='AC', t2='A*C'} {t1 GLOB t2} 1
+test_expr expr-6.75 {t1='AC', t2='A*?C'} {t1 GLOB t2} 0
+
+test_expr expr-6.63 {t1=NULL, t2='a*?c'} {t1 GLOB t2} {{}}
+test_expr expr-6.64 {t1='ac', t2=NULL} {t1 GLOB t2} {{}}
+test_expr expr-6.65 {t1=NULL, t2='a*?c'} {t1 NOT GLOB t2} {{}}
+test_expr expr-6.66 {t1='ac', t2=NULL} {t1 NOT GLOB t2} {{}}
+
+# Check that the affinity of a CAST expression is calculated correctly.
+ifcapable cast {
+  test_expr expr-6.67 {t1='01', t2=1} {t1 = t2} 0
+  test_expr expr-6.68 {t1='1', t2=1} {t1 = t2} 1
+  test_expr expr-6.69 {t1='01', t2=1} {CAST(t1 AS INTEGER) = t2} 1
+}
+
+test_expr expr-case.1 {i1=1, i2=2} \
+	{CASE WHEN i1 = i2 THEN 'eq' ELSE 'ne' END} ne
+test_expr expr-case.2 {i1=2, i2=2} \
+	{CASE WHEN i1 = i2 THEN 'eq' ELSE 'ne' END} eq
+test_expr expr-case.3 {i1=NULL, i2=2} \
+	{CASE WHEN i1 = i2 THEN 'eq' ELSE 'ne' END} ne
+test_expr expr-case.4 {i1=2, i2=NULL} \
+	{CASE WHEN i1 = i2 THEN 'eq' ELSE 'ne' END} ne
+test_expr expr-case.5 {i1=2} \
+	{CASE i1 WHEN 1 THEN 'one' WHEN 2 THEN 'two' ELSE 'error' END} two
+test_expr expr-case.6 {i1=1} \
+	{CASE i1 WHEN 1 THEN 'one' WHEN NULL THEN 'two' ELSE 'error' END} one
+test_expr expr-case.7 {i1=2} \
+	{CASE i1 WHEN 1 THEN 'one' WHEN NULL THEN 'two' ELSE 'error' END} error
+test_expr expr-case.8 {i1=3} \
+	{CASE i1 WHEN 1 THEN 'one' WHEN NULL THEN 'two' ELSE 'error' END} error
+test_expr expr-case.9 {i1=3} \
+	{CASE i1 WHEN 1 THEN 'one' WHEN 2 THEN 'two' ELSE 'error' END} error
+test_expr expr-case.10 {i1=3} \
+	{CASE i1 WHEN 1 THEN 'one' WHEN 2 THEN 'two' END} {{}}
+test_expr expr-case.11 {i1=null} \
+	{CASE i1 WHEN 1 THEN 'one' WHEN 2 THEN 'two' ELSE 3 END} 3
+test_expr expr-case.12 {i1=1} \
+	{CASE i1 WHEN 1 THEN null WHEN 2 THEN 'two' ELSE 3 END} {{}}
+test_expr expr-case.13 {i1=7} \
+	{ CASE WHEN i1 < 5 THEN 'low' 
+	       WHEN i1 < 10 THEN 'medium' 
+               WHEN i1 < 15 THEN 'high' ELSE 'error' END} medium
+
+
+# The sqliteExprIfFalse and sqliteExprIfTrue routines are only
+# executed as part of a WHERE clause.  Create a table suitable
+# for testing these functions.
+#
+execsql {DROP TABLE test1}
+execsql {CREATE TABLE test1(a int, b int);}
+for {set i 1} {$i<=20} {incr i} {
+  execsql "INSERT INTO test1 VALUES($i,[expr {1<<$i}])"
+}
+execsql "INSERT INTO test1 VALUES(NULL,0)"
+do_test expr-7.1 {
+  execsql {SELECT * FROM test1 ORDER BY a}
+} {{} 0 1 2 2 4 3 8 4 16 5 32 6 64 7 128 8 256 9 512 10 1024 11 2048 12 4096 13 8192 14 16384 15 32768 16 65536 17 131072 18 262144 19 524288 20 1048576}
+
+proc test_expr2 {name expr result} {
+  do_test $name [format {
+    execsql {SELECT a FROM test1 WHERE %s ORDER BY a}
+  } $expr] $result
+}
+
+test_expr2 expr-7.2  {a<10 AND a>8}                  {9}
+test_expr2 expr-7.3  {a<=10 AND a>=8}                {8 9 10}
+test_expr2 expr-7.4  {a>=8 AND a<=10}                {8 9 10}
+test_expr2 expr-7.5  {a>=20 OR a<=1}                 {1 20}
+test_expr2 expr-7.6  {b!=4 AND a<=3}                 {1 3}
+test_expr2 expr-7.7  {b==8 OR b==16 OR b==32}        {3 4 5}
+test_expr2 expr-7.8  {NOT b<>8 OR b==1024}           {3 10}
+test_expr2 expr-7.9  {b LIKE '10%'}                  {10 20}
+test_expr2 expr-7.10 {b LIKE '_4'}                   {6}
+test_expr2 expr-7.11 {a GLOB '1?'}            {10 11 12 13 14 15 16 17 18 19}
+test_expr2 expr-7.12 {b GLOB '1*4'}                  {10 14}
+test_expr2 expr-7.13 {b GLOB '*1[456]'}              {4}
+test_expr2 expr-7.14 {a ISNULL}                      {{}}
+test_expr2 expr-7.15 {a NOTNULL AND a<3}             {1 2}
+test_expr2 expr-7.16 {a AND a<3}                     {1 2}
+test_expr2 expr-7.17 {NOT a}                         {}
+test_expr2 expr-7.18 {a==11 OR (b>1000 AND b<2000)}  {10 11}
+test_expr2 expr-7.19 {a<=1 OR a>=20}                 {1 20}
+test_expr2 expr-7.20 {a<1 OR a>20}                   {}
+test_expr2 expr-7.21 {a>19 OR a<1}                   {20}
+test_expr2 expr-7.22 {a!=1 OR a=100} \
+                         {2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20}
+test_expr2 expr-7.23 {(a notnull AND a<4) OR a==8}   {1 2 3 8}
+test_expr2 expr-7.24 {a LIKE '2_' OR a==8}           {8 20}
+test_expr2 expr-7.25 {a GLOB '2?' OR a==8}           {8 20}
+test_expr2 expr-7.26 {a isnull OR a=8}               {{} 8}
+test_expr2 expr-7.27 {a notnull OR a=8} \
+                          {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20}
+test_expr2 expr-7.28 {a<0 OR b=0} {{}}
+test_expr2 expr-7.29 {b=0 OR a<0} {{}}
+test_expr2 expr-7.30 {a<0 AND b=0} {}
+test_expr2 expr-7.31 {b=0 AND a<0} {}
+test_expr2 expr-7.32 {a IS NULL AND (a<0 OR b=0)} {{}}
+test_expr2 expr-7.33 {a IS NULL AND (b=0 OR a<0)} {{}}
+test_expr2 expr-7.34 {a IS NULL AND (a<0 AND b=0)} {}
+test_expr2 expr-7.35 {a IS NULL AND (b=0 AND a<0)} {}
+test_expr2 expr-7.32 {(a<0 OR b=0) AND a IS NULL} {{}}
+test_expr2 expr-7.33 {(b=0 OR a<0) AND a IS NULL} {{}}
+test_expr2 expr-7.34 {(a<0 AND b=0) AND a IS NULL} {}
+test_expr2 expr-7.35 {(b=0 AND a<0) AND a IS NULL} {}
+test_expr2 expr-7.36 {a<2 OR (a<0 OR b=0)} {{} 1}
+test_expr2 expr-7.37 {a<2 OR (b=0 OR a<0)} {{} 1}
+test_expr2 expr-7.38 {a<2 OR (a<0 AND b=0)} {1}
+test_expr2 expr-7.39 {a<2 OR (b=0 AND a<0)} {1}
+ifcapable floatingpoint {
+  test_expr2 expr-7.40 {((a<2 OR a IS NULL) AND b<3) OR b>1e10} {{} 1}
+}
+test_expr2 expr-7.41 {a BETWEEN -1 AND 1} {1}
+test_expr2 expr-7.42 {a NOT BETWEEN 2 AND 100} {1}
+test_expr2 expr-7.43 {(b+1234)||'this is a string that is at least 32 characters long' BETWEEN 1 AND 2} {}
+test_expr2 expr-7.44 {123||'xabcdefghijklmnopqrstuvwyxz01234567890'||a BETWEEN '123a' AND '123b'} {}
+test_expr2 expr-7.45 {((123||'xabcdefghijklmnopqrstuvwyxz01234567890'||a) BETWEEN '123a' AND '123b')<0} {}
+test_expr2 expr-7.46 {((123||'xabcdefghijklmnopqrstuvwyxz01234567890'||a) BETWEEN '123a' AND '123z')>0} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20}
+
+test_expr2 expr-7.50 {((a between 1 and 2 OR 0) AND 1) OR 0} {1 2}
+test_expr2 expr-7.51 {((a not between 3 and 100 OR 0) AND 1) OR 0} {1 2}
+
+ifcapable subquery {
+  test_expr2 expr-7.52 {((a in (1,2) OR 0) AND 1) OR 0} {1 2}
+  test_expr2 expr-7.53 \
+      {((a not in (3,4,5,6,7,8,9,10) OR 0) AND a<11) OR 0} {1 2}
+}
+test_expr2 expr-7.54 {((a>0 OR 0) AND a<3) OR 0} {1 2}
+ifcapable subquery {
+  test_expr2 expr-7.55 {((a in (1,2) OR 0) IS NULL AND 1) OR 0} {{}}
+  test_expr2 expr-7.56 \
+      {((a not in (3,4,5,6,7,8,9,10) IS NULL OR 0) AND 1) OR 0} {{}}
+}
+test_expr2 expr-7.57 {((a>0 IS NULL OR 0) AND 1) OR 0} {{}}
+
+test_expr2 expr-7.58  {(a||'')<='1'}                  {1}
+
+test_expr2 expr-7.59 {LIKE('10%',b)}                  {10 20}
+test_expr2 expr-7.60 {LIKE('_4',b)}                   {6}
+test_expr2 expr-7.61 {GLOB('1?',a)}            {10 11 12 13 14 15 16 17 18 19}
+test_expr2 expr-7.62 {GLOB('1*4',b)}                  {10 14}
+test_expr2 expr-7.63 {GLOB('*1[456]',b)}              {4}
+test_expr2 expr-7.64 {b = abs(-2)}                    {1}
+test_expr2 expr-7.65 {b = abs(+-2)}                   {1}
+test_expr2 expr-7.66 {b = abs(++-2)}                  {1}
+test_expr2 expr-7.67 {b = abs(+-+-2)}                 {1}
+test_expr2 expr-7.68 {b = abs(+-++-2)}                {1}
+test_expr2 expr-7.69 {b = abs(++++-2)}                {1}
+test_expr2 expr-7.70 {b = 5 - abs(+3)}                {1}
+test_expr2 expr-7.71 {b = 5 - abs(-3)}                {1}
+ifcapable floatingpoint {
+  test_expr2 expr-7.72 {b = abs(-2.0)}                  {1}
+}
+test_expr2 expr-7.73 {b = 6 - abs(-a)}                {2}
+ifcapable floatingpoint {
+  test_expr2 expr-7.74 {b = abs(8.0)}                   {3}
+}
+
+# Test the CURRENT_TIME, CURRENT_DATE, and CURRENT_TIMESTAMP expressions.
+#
+ifcapable {floatingpoint} {
+  set sqlite_current_time 1157124849
+  do_test expr-8.1 {
+    execsql {SELECT CURRENT_TIME}
+  } {15:34:09}
+  do_test expr-8.2 {
+    execsql {SELECT CURRENT_DATE}
+  } {2006-09-01}
+  do_test expr-8.3 {
+    execsql {SELECT CURRENT_TIMESTAMP}
+  } {{2006-09-01 15:34:09}}
+}
+ifcapable datetime {
+  do_test expr-8.4 {
+    execsql {SELECT CURRENT_TIME==time('now');}
+  } 1
+  do_test expr-8.5 {
+    execsql {SELECT CURRENT_DATE==date('now');}
+  } 1
+  do_test expr-8.6 {
+    execsql {SELECT CURRENT_TIMESTAMP==datetime('now');}
+  } 1
+}
+set sqlite_current_time 0
+
+ifcapable floatingpoint {
+  do_test expr-9.1 {
+    execsql {SELECT round(-('-'||'123'))}
+  } 123.0
+}
+
+# Test an error message that can be generated by the LIKE expression
+do_test expr-10.1 {
+  catchsql {SELECT 'abc' LIKE 'abc' ESCAPE ''}
+} {1 {ESCAPE expression must be a single character}}
+do_test expr-10.2 {
+  catchsql {SELECT 'abc' LIKE 'abc' ESCAPE 'ab'}
+} {1 {ESCAPE expression must be a single character}}
+
+# If we specify an integer constant that is bigger than the largest
+# possible integer, code the integer as a real number.
+#
+do_test expr-11.1 {
+  execsql {SELECT typeof(9223372036854775807)}
+} {integer}
+do_test expr-11.2 {
+  execsql {SELECT typeof(00000009223372036854775807)}
+} {integer}
+do_test expr-11.3 {
+  execsql {SELECT typeof(+9223372036854775807)}
+} {integer}
+do_test expr-11.4 {
+  execsql {SELECT typeof(+000000009223372036854775807)}
+} {integer}
+do_test expr-11.5 {
+  execsql {SELECT typeof(9223372036854775808)}
+} {real}
+do_test expr-11.6 {
+  execsql {SELECT typeof(00000009223372036854775808)}
+} {real}
+do_test expr-11.7 {
+  execsql {SELECT typeof(+9223372036854775808)}
+} {real}
+do_test expr-11.8 {
+  execsql {SELECT typeof(+0000009223372036854775808)}
+} {real}
+do_test expr-11.11 {
+  execsql {SELECT typeof(-9223372036854775808)}
+} {integer}
+do_test expr-11.12 {
+  execsql {SELECT typeof(-00000009223372036854775808)}
+} {integer}
+ifcapable floatingpoint {
+  do_test expr-11.13 {
+    execsql {SELECT typeof(-9223372036854775809)}
+  } {real}
+  do_test expr-11.14 {
+    execsql {SELECT typeof(-00000009223372036854775809)}
+  } {real}
+}
+
+# These two statements used to leak memory (because of missing %destructor
+# directives in parse.y).
+do_test expr-12.1 {
+  catchsql {
+    SELECT (CASE a>4 THEN 1 ELSE 0 END) FROM test1;
+  }
+} {1 {near "THEN": syntax error}}
+do_test expr-12.2 {
+  catchsql {
+    SELECT (CASE WHEN a>4 THEN 1 ELSE 0) FROM test1;
+  }
+} {1 {near ")": syntax error}}
+
+ifcapable floatingpoint {
+  do_realnum_test expr-13.1 {
+    execsql {
+      SELECT 12345678901234567890;
+    }
+  } {1.23456789012346e+19}
+}
+
+# Implicit String->Integer conversion is used when possible.
+#
+if {[working_64bit_int]} {
+  do_test expr-13.2 {
+    execsql {
+      SELECT 0+'9223372036854775807'
+    }
+  } {9223372036854775807}
+  do_test expr-13.3 {
+    execsql {
+      SELECT '9223372036854775807'+0
+    }
+  } {9223372036854775807}
+}
+
+# If the value is too large, use String->Float conversion.
+#
+ifcapable floatingpoint {
+  do_realnum_test expr-13.4 {
+    execsql {
+      SELECT 0+'9223372036854775808'
+    }
+  } {9.22337203685478e+18}
+  do_realnum_test expr-13.5 {
+    execsql {
+      SELECT '9223372036854775808'+0
+    }
+  } {9.22337203685478e+18}
+}
+
+# Use String->float conversion if the value is explicitly a floating
+# point value.
+#
+do_realnum_test expr-13.6 {
+  execsql {
+    SELECT 0+'9223372036854775807.0'
+  }
+} {9.22337203685478e+18}
+do_realnum_test expr-13.7 {
+  execsql {
+    SELECT '9223372036854775807.0'+0
+  }
+} {9.22337203685478e+18}
+
+sqlite3_db_config db SQLITE_DBCONFIG_DQS_DML 1
+do_execsql_test expr-13.8 {
+  SELECT "" <= '';
+} {1}
+do_execsql_test expr-13.9 {
+  SELECT '' <= "";
+} {1}
+
+# 2018-02-26. Ticket https://www.sqlite.org/src/tktview/36fae083b450e3af85
+# 
+do_execsql_test expr-14.1 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(x);
+  INSERT INTO t1 VALUES(0),(1),(NULL),(0.5),('1x'),('0x');
+  SELECT count(*) FROM t1
+   WHERE (x OR (8==9)) != (CASE WHEN x THEN 1 ELSE 0 END);
+} {0}
+do_execsql_test expr-14.2 {
+  SELECT count(*) FROM t1
+   WHERE (x OR (8==9)) != (NOT NOT x);
+} {0}
+do_execsql_test expr-14.3 {
+  SELECT sum(NOT x) FROM t1
+   WHERE x
+} {0}
+do_execsql_test expr-14.4 {
+  SELECT sum(CASE WHEN x THEN 0 ELSE 1 END) FROM t1
+   WHERE x
+} {0}
+
+
+foreach {tn val} [list 1 NaN 2 -NaN 3 NaN0 4 -NaN0 5 Inf 6 -Inf] {
+  do_execsql_test expr-15.$tn.1 {
+    DROP TABLE IF EXISTS t1;
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(0),(1),(NULL),(0.5),('1x'),('0x');
+  }
+
+  do_test expr-15.$tn.2 {
+    set ::STMT [sqlite3_prepare db "INSERT INTO t1 VALUES(?)" -1 TAIL]
+    sqlite3_bind_double $::STMT 1 $val
+    sqlite3_step $::STMT
+    sqlite3_reset $::STMT
+    sqlite3_finalize $::STMT
+  } {SQLITE_OK}
+
+  do_execsql_test expr-15.$tn.3 {
+    SELECT count(*) FROM t1
+     WHERE (x OR (8==9)) != (CASE WHEN x THEN 1 ELSE 0 END);
+  } {0}
+
+  do_execsql_test expr-15.$tn.4 {
+    SELECT count(*) FROM t1
+     WHERE (x OR (8==9)) != (NOT NOT x);
+  } {0}
+
+  do_execsql_test expr-15.$tn.5 {
+    SELECT sum(NOT x) FROM t1
+     WHERE x
+  } {0}
+
+  do_execsql_test expr-15.$tn.6 {
+    SELECT sum(CASE WHEN x THEN 0 ELSE 1 END) FROM t1
+     WHERE x
+  } {0}
+}
+
+reset_db
+sqlite3_test_control SQLITE_TESTCTRL_INTERNAL_FUNCTIONS db
+do_execsql_test expr-16.1 {
+  CREATE TABLE t1(a,b,c);
+  CREATE TABLE dual(dummy);
+  INSERT INTO dual VALUES('X');
+} {}
+do_execsql_test expr-16.100 {
+  SELECT implies_nonnull_row( (b=1 AND 0)>(b=3 AND 0),a)
+  FROM dual LEFT JOIN t1;
+} {0}
+do_execsql_test expr-16.101 {
+  SELECT implies_nonnull_row( (b=1 AND 0)>(b=3 AND a=4),a)
+  FROM dual LEFT JOIN t1;
+} {1}
+do_execsql_test expr-16.102 {
+  SELECT implies_nonnull_row( (b=1 AND a=2)>(b=3 AND a=4),a)
+  FROM dual LEFT JOIN t1;
+} {1}
+
+finish_test
diff --git a/test/expr2.test b/test/expr2.test
new file mode 100644
index 0000000000000000000000000000000000000000..3dfbadcd900bcf43b22e7001861d9abc6a9b18b9
--- /dev/null
+++ b/test/expr2.test
@@ -0,0 +1,54 @@
+# 2019 May 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing expressions.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix expr2
+
+do_execsql_test 1.0 {
+  CREATE TABLE t0(c0);
+  INSERT INTO t0(c0) VALUES ('val');
+}
+
+do_execsql_test 1.1 {
+  SELECT * FROM t0 WHERE (
+      ( (0 IS NOT FALSE) OR NOT (0 IS FALSE OR (t0.c0 = 1)) ) IS 0
+  )
+} {val}
+
+do_execsql_test 1.2.1 {
+  SELECT 
+      ( (0 IS NOT FALSE) OR NOT (0 IS FALSE OR (t0.c0 = 1)) ) IS 0
+  FROM t0 
+} {1}
+
+do_execsql_test 1.2.2 {
+  SELECT 
+      ( (0 IS NOT FALSE) OR NOT (0 IS 0 OR (t0.c0 = 1)) ) IS 0
+  FROM t0 
+} {1}
+
+do_execsql_test 1.3 {
+  SELECT ( (0 IS NOT FALSE) OR NOT (0 IS FALSE OR (t0.c0 = 1)) ) FROM t0 
+} {0}
+
+do_execsql_test 1.4.1 {
+  SELECT (0 IS NOT FALSE) FROM t0 
+} {0}
+do_execsql_test 1.4.2 {
+  SELECT NOT (0 IS FALSE OR (t0.c0 = 1)) FROM t0 
+} {0}
+
+
+finish_test
diff --git a/test/exprfault.test b/test/exprfault.test
new file mode 100644
index 0000000000000000000000000000000000000000..f0abe9ac39938793aafa0fa04729378ba0a75f51
--- /dev/null
+++ b/test/exprfault.test
@@ -0,0 +1,45 @@
+# 2021 April 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix exprfault
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a);                 
+  CREATE TABLE t2(d);                 
+}
+faultsim_save_and_close
+
+do_faultsim_test 1.1 -faults oom* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql {
+    SELECT a = ( SELECT d FROM (SELECT d FROM t2) ) FROM t1 
+  }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+do_faultsim_test 2 -faults oom* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql {
+    SELECT hex ( unhex('ABCDEF') );
+  }
+} -test {
+  faultsim_test_result {0 ABCDEF}
+}
+
+
+finish_test
diff --git a/test/exprfault2.test b/test/exprfault2.test
new file mode 100644
index 0000000000000000000000000000000000000000..acbead59f6b934e6a4e256b055eb2ae8b3766fa2
--- /dev/null
+++ b/test/exprfault2.test
@@ -0,0 +1,35 @@
+# 2024-05-11
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix exprfault2
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a,b,c,d,f,PRIMARY KEY(b,b));
+  CREATE TABLE t2(x INT PRIMARY KEY, y, z);
+  CREATE TABLE t3(a,b,c,d,e,PRIMARY KEY(a,b))WITHOUT ROWID;
+}
+faultsim_save_and_close
+
+
+do_faultsim_test 1 -faults oom-t* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql {
+  UPDATE t3 SET (d,d,d,d, a )=(SELECT EXISTS(SELECT 1 NOT IN(SELECT EXISTS(SELECT 1 IN(SELECT max( 1 IN(SELECT x ORDER BY 1)) OVER(PARTITION BY sum((SELECT y FROM t2 UNION SELECT (SELECT max( 1 IN(SELECT x NOT IN(SELECT 1 NOT IN(SELECT EXISTS(SELECT 1 IN(SELECT max( 1 IN(SELECT x ORDER BY 1)) OVER(PARTITION BY sum((SELECT y FROM t2 UNION SELECT (SELECT max( (SELECT x NOT IN(SELECT 1 NOT IN(SELECT EXISTS(SELECT 1 IN(SELECT max( 1 IN(SELECT x ORDER BY 1)) OVER(PARTITION BY sum((SELECT y FROM t2 UNION SELECT (SELECT max( 1 IN(SELECT x ORDER BY 1)) OVER(PARTITION BY sum((SELECT y FROM t2 UNION SELECT x ORDER BY 1)))INTERSECT SELECT (SELECT 1 FROM t2 UNION SELECT d ORDER BY 1) ORDER BY 1) ORDERa)| (SELECT 1 x ORDER BY 1)))INTERSECT SELECT EXISTS(SELECT 1 FROM t2 UNION SELECT d ORDER BY 1) ORDER BY 1) a)| (SELECT 1 IN(SELECT max( 1 IN(SELECT x ORDER BY 1)) OVER(ORDER BY sum((SELECT DISTINCT y FROM t2 UNION SELECT x ORDER BY 1)))INTERSECT SELECT EXISTS(SELECT 1 FROM t2 UNION SELECT x ORDER BY 1) ORDER BY 1) z)|9 AS blob) IN(SELECT max( 1 IN(SELECT x ORDER BY 1)) OVER(PARTITION BY sum((SELECT DISTINCT y FROM t2 UNION SELECT x ORDER BY 1)))EXCEPT SELECT EXISTS(SELECT 1 FROM t2 UNION SELECT d ORDER BY 1) ORDER BY 1) z) ORDER BY 1) IN(SELECT x ORDER BY 1)) OVER(PARTITION BY sum((SELECT DISTINCT y FROM t2 UNION SELECT x ORDER BY 1)))INTERSECT SELECT (SELECT 1 FROM t2 UNION SELECT d ORDER BY 1) ORDER BY 1) ORDERa)| (SELECT 1 x ORDER BY 1)))EXCEPT SELECT EXISTS(SELECT 1 FROM t2 UNION SELECT d ORDER BY 1) ORDER BY 1) a)| (SELECT 1 IN(SELECT max( 1 IN(SELECT x ORDER BY 1)) OVER(PARTITION BY sum((SELECT DISTINCT y FROM t2 UNION SELECT x ORDER BY 1)))INTERSECT SELECT EXISTS(SELECT 1 FROM t2 UNION SELECT x ORDER BY 1) ORDER BY 1) z)|9 AS blob) IN(SELECT max( 1 IN(SELECT x ORDER BY 1)) OVER(PARTITION BY sum((SELECT DISTINCT y FROM t2 UNION SELECT x ORDER BY 1)))EXCEPT SELECT EXISTS(SELECT 1 FROM t2 UNION SELECT d ORDER BY 1) ORDER BY 1) z) ORDER BY 1)) OVER(PARTITION BY sum((SELECT y FROM t2 UNION SELECT x ORDER BY 1)))INTERSECT SELECT EXISTS(SELECT 1 FROM t2 UNION SELECT d ORDER BY 1) ORDER BY 1) ORDERa)| (SELECT 1 x ORDER BY 1)))INTERSECT SELECT EXISTS(SELECT 5 FROM t2 UNION SELECT d ORDER BY 1) ORDER BY 1) ORDERa)| (SELECT 1 IN(SELECT max( 1 IN(SELECT x ORDER BY 1)) OVER(ORDER BY sum((SELECT DISTINCT y FROM t2 UNION SELECT x ORDER BY 1)))INTERSECT SELECT EXISTS(SELECT 1 FROM t2 UNION SELECT x ORDER BY 1) ORDER BY 1) z)| 1 AS blob) IN(SELECT max( 1 IN(SELECT x ORDER BY 1)) OVER(PARTITION BY sum((SELECT DISTINCT y FROM t2 UNION SELECT x ORDER BY 1)))INTERSECT SELECT EXISTS(SELECT 1 FROM t2 UNION SELECT d ORDER BY 1) ORDER BY 1) z)| (SELECT 1 IN(SELECT max( 1 IN(SELECT c ORDER BY 1)) OVER(PARTITION BY sum((SELECT y FROM t2 UNION SELECT x ORDER BY 1)))INTERSECT SELECT (SELECT 1 FROM t2 UNION SELECT x ORDER BY 1) ORDER BY 1) e)|9 AS blob) FROM t2 WHERE a<x), e= BY 1) FROM t2 UNION SELECT 1 ORDER BY 1) ORDER BY 1)) a) FILTER (GROUP BY 1 HAVING b<= OVER(ORDER BY (SELECT max(x INPARTITION BY sum((SELECT y FROM t2 UNION SELECT x IN(SELECT 1 ORDER BY 1) ORDER 1)))INTERSECT SELECT EXISTS(SELECT 1 FROM t2 WHERE xBY 1) ORDER BY 1)) FROM77;
+  }
+} -test {
+  faultsim_test_result {1 {near ")": syntax error}}
+}
+
+finish_test
diff --git a/test/extension01.test b/test/extension01.test
new file mode 100644
index 0000000000000000000000000000000000000000..97b772680e5ee3cb50d254018a715e29fc514ce9
--- /dev/null
+++ b/test/extension01.test
@@ -0,0 +1,83 @@
+# 2014-06-16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+# This file implements tests for various small extensions.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix extension01
+
+load_static_extension db fileio
+do_test 1.0 {
+  forcedelete file1.txt
+  set out [open ./file1.txt wb]
+  puts -nonewline $out "This is a text file without a line ending"
+  close $out
+  db eval {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b TEXT);
+    INSERT INTO t1 VALUES(1, readfile('./file1.txt'));
+    SELECT * FROM t1;
+  }
+} {1 {This is a text file without a line ending}}
+do_test 1.1 {
+  forcedelete file2.txt
+  db nullvalue nil
+  db eval {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES(2, readfile(NULL)),(3, readfile('file2.txt'));
+    SELECT a, b, typeof(b) FROM t1;
+  }
+} {2 nil null 3 nil null}
+
+do_test 1.2 {
+  db eval {
+    SELECT writefile('./file2.txt', 'A second test line');
+  }
+} {18}
+do_test 1.3 {
+  set in [open ./file2.txt rb]
+  set x [read $in]
+  close $in
+  list $x [file size file2.txt]
+} {{A second test line} 18}
+
+do_test 1.4 {
+  db eval {
+    SELECT writefile('./file2.txt', NULL);
+  }
+} {0}
+do_test 1.5 {
+  file size ./file2.txt
+} {0}
+
+do_test 1.6 {
+  if {$::tcl_platform(platform)=="unix"} {
+    file attributes ./file2.txt -permissions r--r--r--
+  } else {
+    file attributes ./file2.txt -readonly 1
+  }
+  db eval {
+    SELECT writefile('./file2.txt', 'Another test');
+  }
+} {nil}
+do_test 1.7 {
+  if {$::tcl_platform(platform)=="unix"} {
+    file attributes ./file2.txt -permissions rw-r--r--
+  } else {
+    file attributes ./file2.txt -readonly 0
+  }
+  db eval {
+    SELECT writefile(NULL, 'Another test');
+  }
+} {nil}
+
+finish_test
diff --git a/test/external_reader.test b/test/external_reader.test
new file mode 100644
index 0000000000000000000000000000000000000000..5d293981c5201d8651f9cc4c7a31da102c69a108
--- /dev/null
+++ b/test/external_reader.test
@@ -0,0 +1,74 @@
+# 2021 April 2
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+set testprefix external_reader
+
+ifcapable !wal {
+  finish_test 
+  return 
+}
+if {$::tcl_platform(platform)!="unix"} {
+  finish_test 
+  return
+}
+
+do_multiclient_test tn {
+
+  set bExternal 1
+  if {[info commands db3]!=""} { set bExternal 0 }
+
+  do_test 1.$tn.0 {
+    sql1 {
+      PRAGMA journal_mode = wal;
+      CREATE TABLE t1(a, b);
+      INSERT INTO t1 VALUES(1, 2);
+    }
+  } {wal}
+
+  do_test 1.$tn.1 {
+    sql2 { SELECT * FROM t1 }
+  } {1 2}
+
+  do_test 1.$tn.2 {
+    code1 {
+      file_control_external_reader db
+    } 
+  } {0}
+
+  do_test 1.$tn.3 {
+    sql2 { 
+      BEGIN;
+        SELECT * FROM t1;
+    }
+  } {1 2}
+
+  do_test 1.$tn.4 {
+    code1 {
+      file_control_external_reader db
+    } 
+  } $bExternal
+
+  do_test 1.$tn.5 {
+    sql2 { COMMIT }
+  } {}
+
+  do_test 1.$tn.6 {
+    code1 { file_control_external_reader db } 
+  } 0
+
+}
+
+
+finish_test
diff --git a/test/extraquick.test b/test/extraquick.test
new file mode 100644
index 0000000000000000000000000000000000000000..f453564e7f161e633114bdd811d076d87601cc67
--- /dev/null
+++ b/test/extraquick.test
@@ -0,0 +1,16 @@
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file runs most of the tests run by veryquick.test except for those
+# that take a long time.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/permutations.test
+
+run_test_suite extraquick
+
+finish_test
diff --git a/test/fallocate.test b/test/fallocate.test
new file mode 100644
index 0000000000000000000000000000000000000000..3e154482bc9d82b1314fab568315219775cdfcf4
--- /dev/null
+++ b/test/fallocate.test
@@ -0,0 +1,157 @@
+# 2010 July 28
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+file_control_chunksize_test db main [expr 1024*1024]
+
+do_test fallocate-1.1 {
+  execsql {
+    PRAGMA page_size = 1024;
+    PRAGMA auto_vacuum = 1;
+    CREATE TABLE t1(a, b);
+  }
+  file size test.db
+} [expr 1*1024*1024]
+
+do_test fallocate-1.2 {
+  execsql { INSERT INTO t1 VALUES(1, zeroblob(1024*900)) }
+  file size test.db
+} [expr 1*1024*1024]
+
+do_test fallocate-1.3 {
+  execsql { INSERT INTO t1 VALUES(2, zeroblob(1024*900)) }
+  file size test.db
+} [expr 2*1024*1024]
+
+do_test fallocate-1.4 {
+  execsql { DELETE FROM t1 WHERE a = 1 }
+  file size test.db
+} [expr 1*1024*1024]
+
+do_test fallocate-1.5 {
+  execsql { DELETE FROM t1 WHERE a = 2 }
+  file size test.db
+} [expr 1*1024*1024]
+
+do_test fallocate-1.6 {
+  execsql { PRAGMA freelist_count }
+} {0}
+
+# Start a write-transaction and read the "database file size" field from
+# the journal file. This field should be set to the number of pages in
+# the database file based on the size of the file on disk, not the actual
+# logical size of the database within the file.
+#
+# We need to check this to verify that if in the unlikely event a rollback
+# causes a database file to grow, the database grows to its previous size
+# on disk, not to the minimum size required to hold the database image.
+#
+do_test fallocate-1.7 {
+  execsql { BEGIN; INSERT INTO t1 VALUES(1, 2); }
+  if {[permutation] != "inmemory_journal"
+   && [permutation] != "atomic-batch-write"
+   && [atomic_batch_write test.db]==0
+  } {
+    hexio_get_int [hexio_read test.db-journal 16 4]
+  } else {
+    set {} 1024
+  }
+} {1024}
+do_test fallocate-1.8 { execsql { COMMIT } } {}
+
+do_test fallocate-1.8 {
+  set nPg [db one {PRAGMA page_count}]
+  set nFile [expr [file size test.db] / 1024]
+  list [expr $nPg<100] [expr $nFile>100]
+} {1 1}
+
+do_execsql_test fallocate-1.9 {
+  PRAGMA max_page_count = 100;
+} {100}
+
+#-------------------------------------------------------------------------
+# The following tests - fallocate-2.* - test that things work in WAL
+# mode as well.
+#
+set skipwaltests [expr {
+  [permutation]=="journaltest" || [permutation]=="inmemory_journal"
+}]
+ifcapable !wal { set skipwaltests 1 }
+
+if {!$skipwaltests} {
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+  file_control_chunksize_test db main [expr 32*1024]
+  
+  do_test fallocate-2.1 {
+    execsql {
+      PRAGMA page_size = 1024;
+      PRAGMA journal_mode = WAL;
+      CREATE TABLE t1(a, b);
+    }
+    file size test.db
+  } [expr 32*1024]
+  
+  do_test fallocate-2.2 {
+    execsql { INSERT INTO t1 VALUES(1, zeroblob(35*1024)) }
+    execsql { PRAGMA wal_checkpoint }
+    file size test.db
+  } [expr 64*1024]
+  
+  do_test fallocate-2.3 {
+    execsql { DELETE FROM t1 }
+    execsql { VACUUM }
+    file size test.db
+  } [expr 64*1024]
+  
+  do_test fallocate-2.4 {
+    execsql { PRAGMA wal_checkpoint }
+    file size test.db
+  } [expr 32*1024]
+  
+  do_test fallocate-2.5 {
+    execsql { 
+      INSERT INTO t1 VALUES(2, randomblob(35*1024));
+      PRAGMA wal_checkpoint;
+      INSERT INTO t1 VALUES(3, randomblob(128));
+      DELETE FROM t1 WHERE a = 2;
+      VACUUM;
+    }
+    file size test.db
+  } [expr 64*1024]
+  
+  do_test fallocate-2.6 {
+    sqlite3 db2 test.db
+    execsql { BEGIN ; SELECT count(a) FROM t1 } db2
+    execsql {  
+      INSERT INTO t1 VALUES(4, randomblob(128));
+      PRAGMA wal_checkpoint;
+    }
+    file size test.db
+  } [expr 64*1024]
+  
+  do_test fallocate-2.7 {
+    execsql { SELECT count(b) FROM t1 } db2
+  } {1}
+  
+  do_test fallocate-2.8 {
+    execsql { COMMIT } db2
+    execsql { PRAGMA wal_checkpoint }
+    file size test.db
+  } [expr 32*1024]
+}
+
+
+finish_test
diff --git a/test/filectrl.test b/test/filectrl.test
new file mode 100644
index 0000000000000000000000000000000000000000..460b71e257ebfe1550197061576c95a8cc32862a
--- /dev/null
+++ b/test/filectrl.test
@@ -0,0 +1,72 @@
+# 2008 Jan 22
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# $Id: filectrl.test,v 1.2 2008/11/21 00:10:35 aswift Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+
+do_test filectrl-1.1 {
+  file_control_test db
+} {}
+do_test filectrl-1.2 {
+  db eval {CREATE TEMP TABLE x(y);}
+  file_control_test db
+} {}
+do_test filectrl-1.3 {
+  db close
+  sqlite3 db :memory:
+  file_control_test db
+} {}
+do_test filectrl-1.4 {
+  sqlite3 db test.db
+  file_control_lasterrno_test db
+} {}
+do_test filectrl-1.5 {
+  db close
+  sqlite3 db test_control_lockproxy.db
+  file_control_lockproxy_test db [get_pwd]
+} {}
+do_test filectrl-1.6 {
+  sqlite3 db test.db
+  set fn [file_control_tempfilename db]
+  set fn
+} {/etilqs_/}
+db close
+forcedelete .test_control_lockproxy.db-conch test.proxy
+forcedelete test.db test2.db
+
+if {$tcl_platform(platform)=="windows"} {
+  do_test filectrl-2.1 {
+    sqlite3 db test2.db
+    set size [file size test2.db]
+    set handle [file_control_win32_get_handle db]
+    db close
+    forcedelete test2.db
+    list $size $handle [expr {$handle != 0}]
+  } {/^0 \{0 [0-9A-Fa-f]+\} 1$/}
+
+  do_test filectrl-2.2 {
+    sqlite3 db test2.db
+    execsql {
+      CREATE TABLE t1(x);
+      INSERT INTO t1 (x) VALUES(RANDOMBLOB(1048576));
+    }
+    set size [file size test2.db]
+    set handle [file_control_win32_get_handle db]
+    db close
+    forcedelete test2.db
+    list $size $handle [expr {$handle != 0}]
+  } {/^1\d+ \{0 [0-9A-Fa-f]+\} 1$/}
+}
+
+finish_test
diff --git a/test/filefmt.test b/test/filefmt.test
new file mode 100644
index 0000000000000000000000000000000000000000..b44ef8e29a5f01429e137d0e83ccea76bab882fb
--- /dev/null
+++ b/test/filefmt.test
@@ -0,0 +1,254 @@
+# 2007 April 6
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify database file format.
+#
+# $Id: filefmt.test,v 1.3 2009/06/18 11:34:43 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Do not use a codec for tests in this file, as the database file is
+# manipulated directly using tcl scripts (using the [hexio_write] command).
+#
+do_not_use_codec
+
+db close
+forcedelete test.db test.db-journal
+
+# Database begins with valid 16-byte header string.
+#
+do_test filefmt-1.1 {
+  sqlite3 db test.db
+  db eval {CREATE TABLE t1(x)}
+  db close
+  hexio_read test.db 0 16
+} {53514C69746520666F726D6174203300}
+
+# If the 16-byte header is changed, the file will not open
+#
+do_test filefmt-1.2 {
+  hexio_write test.db 0 54
+  set x [catch {sqlite3 db test.db} err]
+  lappend x $err
+} {0 {}}
+do_test filefmt-1.3 {
+  catchsql {
+    SELECT count(*) FROM sqlite_master
+  }
+} {1 {file is not a database}}
+do_test filefmt-1.4 {
+  db close
+  hexio_write test.db 0 53
+  sqlite3 db test.db
+  catchsql {
+    SELECT count(*) FROM sqlite_master
+  }
+} {0 1}
+
+# The page-size is stored at offset 16
+#
+ifcapable pager_pragmas {
+  foreach pagesize {512 1024 2048 4096 8192 16384 32768} {
+     if {[info exists SQLITE_MAX_PAGE_SIZE]
+          && $pagesize>$SQLITE_MAX_PAGE_SIZE} continue
+     do_test filefmt-1.5.$pagesize.1 {
+       db close
+       forcedelete test.db
+       sqlite3 db test.db
+       db eval "PRAGMA auto_vacuum=OFF"
+       db eval "PRAGMA page_size=$pagesize"
+       db eval {CREATE TABLE t1(x)}
+       file size test.db
+     } [expr $pagesize*2]
+     do_test filefmt-1.5.$pagesize.2 {
+       hexio_get_int [hexio_read test.db 16 2]
+     } $pagesize
+  }
+}
+
+# The page-size must be a power of 2
+#
+do_test filefmt-1.6 {
+  db close
+  hexio_write test.db 16 [hexio_render_int16 1025]
+  sqlite3 db test.db
+  catchsql {
+     SELECT count(*) FROM sqlite_master
+  }
+} {1 {file is not a database}}
+
+
+# The page-size must be at least 512 bytes
+#
+do_test filefmt-1.7 {
+  db close
+  hexio_write test.db 16 [hexio_render_int16 256]
+  sqlite3 db test.db
+  catchsql {
+     SELECT count(*) FROM sqlite_master
+  }
+} {1 {file is not a database}}
+
+# Usable space per page (page-size minus unused space per page)
+# must be at least 480 bytes
+#
+ifcapable pager_pragmas {
+  do_test filefmt-1.8 {
+    db close
+    forcedelete test.db
+    sqlite3 db test.db
+    db eval {PRAGMA page_size=512; CREATE TABLE t1(x)}
+    db close
+    hexio_write test.db 20 21
+    sqlite3 db test.db
+    catchsql {
+       SELECT count(*) FROM sqlite_master
+    }
+  } {1 {file is not a database}}
+}
+
+#-------------------------------------------------------------------------
+# The following block of tests - filefmt-2.* - test that versions 3.7.0
+# and later can read and write databases that have been modified or created
+# by 3.6.23.1 and earlier. The difference difference is that 3.7.0 stores
+# the size of the database in the database file header, whereas 3.6.23.1
+# always derives this from the size of the file.
+#
+db close
+forcedelete test.db
+
+set a_string_counter 1
+proc a_string {n} {
+  incr ::a_string_counter
+  string range [string repeat "${::a_string_counter}." $n] 1 $n
+}
+sqlite3 db test.db
+db func a_string a_string
+
+do_execsql_test filefmt-2.1.1 {
+  PRAGMA page_size = 1024;
+  PRAGMA auto_vacuum = 0;
+  CREATE TABLE t1(a);
+  CREATE INDEX i1 ON t1(a);
+  INSERT INTO t1 VALUES(a_string(3000));
+  CREATE TABLE t2(a);
+  INSERT INTO t2 VALUES(1);
+} {}
+if {![nonzero_reserved_bytes]} {
+  do_test filefmt-2.1.2 {
+    hexio_read test.db 28 4
+  } {00000009}
+}
+
+do_test filefmt-2.1.3 {
+  sql36231 { INSERT INTO t1 VALUES(a_string(3000)) }
+} {}
+
+do_execsql_test filefmt-2.1.4 { INSERT INTO t2 VALUES(2) } {}
+integrity_check filefmt-2.1.5
+do_test         filefmt-2.1.6 { hexio_read test.db 28 4 } {00000010}
+
+db close
+forcedelete test.db
+sqlite3 db test.db
+db func a_string a_string
+
+do_execsql_test filefmt-2.2.1 {
+  PRAGMA page_size = 1024;
+  PRAGMA auto_vacuum = 0;
+  CREATE TABLE t1(a);
+  CREATE INDEX i1 ON t1(a);
+  INSERT INTO t1 VALUES(a_string(3000));
+  CREATE TABLE t2(a);
+  INSERT INTO t2 VALUES(1);
+} {}
+if {![nonzero_reserved_bytes]} {
+  do_test filefmt-2.2.2 {
+    hexio_read test.db 28 4
+  } {00000009}
+}
+
+do_test filefmt-2.2.3 {
+  sql36231 { INSERT INTO t1 VALUES(a_string(3000)) }
+} {}
+
+do_execsql_test filefmt-2.2.4 { 
+  PRAGMA integrity_check;
+  BEGIN;
+    INSERT INTO t2 VALUES(2);
+    SAVEPOINT a;
+      INSERT INTO t2 VALUES(3);
+    ROLLBACK TO a;
+} {ok}
+
+integrity_check filefmt-2.2.5
+do_execsql_test filefmt-2.2.6 { COMMIT } {}
+db close
+sqlite3 db test.db
+integrity_check filefmt-2.2.7
+
+#--------------------------------------------------------------------------
+# Check that ticket 89b8c9ac54 is fixed. Before the fix, the SELECT 
+# statement would return SQLITE_CORRUPT. The database file was not actually
+# corrupted, but SQLite was reporting that it was.
+#
+db close
+forcedelete test.db
+sqlite3 db test.db
+do_execsql_test filefmt-3.1 {
+  PRAGMA auto_vacuum = 1;
+  CREATE TABLE t1(a, b);
+} {}
+do_test filefmt-3.2 { 
+  sql36231 { DROP TABLE t1 } 
+} {}
+do_execsql_test filefmt-3.3 {
+  SELECT * FROM sqlite_master;
+  PRAGMA integrity_check;
+} {ok}
+
+reset_db
+do_execsql_test filefmt-4.1 {
+  PRAGMA auto_vacuum = 1;
+  CREATE TABLE t1(x, y);
+  CREATE TABLE t2(x, y);
+
+  INSERT INTO t1 VALUES(randomblob(100), randomblob(100));
+  INSERT INTO t1 VALUES(randomblob(100), randomblob(100));
+  INSERT INTO t1 VALUES(randomblob(100), randomblob(100));
+  INSERT INTO t1 VALUES(randomblob(100), randomblob(100));
+  INSERT INTO t1 VALUES(randomblob(100), randomblob(100));
+  INSERT INTO t1 VALUES(randomblob(100), randomblob(100));
+
+  INSERT INTO t2 SELECT randomblob(100), randomblob(100) FROM t1;
+  INSERT INTO t2 SELECT randomblob(100), randomblob(100) FROM t1;
+  INSERT INTO t2 SELECT randomblob(100), randomblob(100) FROM t1;
+  INSERT INTO t2 SELECT randomblob(100), randomblob(100) FROM t1;
+}
+
+do_test filefmt-4.2 { 
+  sql36231 { INSERT INTO t2 SELECT * FROM t1 }
+} {}
+
+do_test filefmt-4.3 { 
+  forcedelete bak.db
+  db backup bak.db
+} {}
+
+do_test filefmt-4.4 { 
+  sqlite3 db2 bak.db
+  db2 eval { PRAGMA integrity_check }
+} {ok}
+db2 close
+
+finish_test
diff --git a/test/filter1.test b/test/filter1.test
new file mode 100644
index 0000000000000000000000000000000000000000..bb36e179b3b3b645504c959091593c5d8020712a
--- /dev/null
+++ b/test/filter1.test
@@ -0,0 +1,237 @@
+# 2018 May 8
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix filter1
+
+ifcapable !windowfunc {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a);
+  CREATE INDEX i1 ON t1(a);
+  INSERT INTO t1 VALUES(1), (2), (3), (4), (5), (6), (7), (8), (9);
+}
+
+do_execsql_test 1.1 { SELECT sum(a) FROM t1; } 45
+do_execsql_test 1.2 { SELECT sum(a) FILTER( WHERE a<5 ) FROM t1; } 10
+
+do_execsql_test 1.3 { 
+  SELECT sum(a) FILTER( WHERE a>9 ),
+         sum(a) FILTER( WHERE a>8 ),
+         sum(a) FILTER( WHERE a>7 ),
+         sum(a) FILTER( WHERE a>6 ),
+         sum(a) FILTER( WHERE a>5 ),
+         sum(a) FILTER( WHERE a>4 ),
+         sum(a) FILTER( WHERE a>3 ),
+         sum(a) FILTER( WHERE a>2 ),
+         sum(a) FILTER( WHERE a>1 ),
+         sum(a) FILTER( WHERE a>0 )
+  FROM t1;
+} {{} 9 17 24 30 35 39 42 44 45}
+
+do_execsql_test 1.4 {
+  SELECT max(a) FILTER (WHERE (a % 2)==0) FROM t1
+} {8}
+
+do_execsql_test 1.5 {
+  SELECT min(a) FILTER (WHERE a>4) FROM t1
+} {5}
+
+do_execsql_test 1.6 {
+  SELECT count(*) FILTER (WHERE a!=5) FROM t1
+} {8}
+
+do_execsql_test 1.7 {
+  SELECT min(a) FILTER (WHERE a>3) FROM t1 GROUP BY (a%2) ORDER BY 1;
+} {4 5}
+
+do_execsql_test 1.8 {
+  CREATE VIEW vv AS 
+  SELECT sum(a) FILTER( WHERE a>9 ),
+         sum(a) FILTER( WHERE a>8 ),
+         sum(a) FILTER( WHERE a>7 ),
+         sum(a) FILTER( WHERE a>6 ),
+         sum(a) FILTER( WHERE a>5 ),
+         sum(a) FILTER( WHERE a>4 ),
+         sum(a) FILTER( WHERE a>3 ),
+         sum(a) FILTER( WHERE a>2 ),
+         sum(a) FILTER( WHERE a>1 ),
+         sum(a) FILTER( WHERE a>0 )
+  FROM t1;
+  SELECT * FROM vv;
+} {{} 9 17 24 30 35 39 42 44 45}
+
+
+#-------------------------------------------------------------------------
+# Test some errors:
+#
+#   .1 FILTER on a non-aggregate function,
+#   .2 Window function in FILTER clause,
+#   .3 Aggregate function in FILTER clause,
+#
+reset_db
+do_execsql_test 2.0 {
+  CREATE TABLE t1(a);
+  INSERT INTO t1 VALUES(1), (2), (3), (4), (5), (6), (7), (8), (9);
+}
+
+do_catchsql_test 2.1 {
+  SELECT upper(a) FILTER (WHERE a=1) FROM t1
+} {1 {FILTER may not be used with non-aggregate upper()}}
+
+do_catchsql_test 2.2 {
+  SELECT sum(a) FILTER (WHERE 1 - max(a) OVER () > 0) FROM t1
+} {1 {misuse of window function max()}}
+
+do_catchsql_test 2.3 {
+  SELECT sum(a) FILTER (WHERE 1 - count(a)) FROM t1
+} {1 {misuse of aggregate function count()}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 3.0 {
+  CREATE TABLE t1(a,b);
+  INSERT INTO t1 VALUES(1, 1);
+}
+do_execsql_test 3.1 {
+  SELECT b, max(a) FILTER (WHERE b='x') FROM t1;
+} {1 {}}
+
+do_execsql_test 3.2 {
+  CREATE TABLE t2(a, b, c);
+  INSERT INTO t2 VALUES(1, 2, 3);
+  INSERT INTO t2 VALUES(1, 3, 4);
+  INSERT INTO t2 VALUES(2, 5, 6);
+  INSERT INTO t2 VALUES(2, 7, 8);
+}
+do_execsql_test 3.3 {
+  SELECT a, c, max(b) FILTER (WHERE c='x') FROM t2 GROUP BY a;
+} {1 3 {} 2 6 {}}
+
+do_execsql_test 3.4 {
+  DELETE FROM t2;
+  INSERT INTO t2 VALUES(1, 5, 'x');
+  INSERT INTO t2 VALUES(1, 2, 3);
+  INSERT INTO t2 VALUES(1, 4, 'x');
+  INSERT INTO t2 VALUES(2, 5, 6);
+  INSERT INTO t2 VALUES(2, 7, 8);
+}
+do_execsql_test 3.5 {
+  SELECT a, c, max(b) FILTER (WHERE c='x') FROM t2 GROUP BY a;
+} {1 x 5 2 6 {}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 4.0 {
+  CREATE TABLE t1(a, b, c);
+  INSERT INTO t1 VALUES('a', 0, 5);
+  INSERT INTO t1 VALUES('a', 1, 10);
+  INSERT INTO t1 VALUES('a', 0, 15);
+
+  INSERT INTO t1 VALUES('b', 0, 5);
+  INSERT INTO t1 VALUES('b', 1, 1000);
+  INSERT INTO t1 VALUES('b', 0, 5);
+
+  INSERT INTO t1 VALUES('c', 0, 1);
+  INSERT INTO t1 VALUES('c', 1, 2);
+  INSERT INTO t1 VALUES('c', 0, 3);
+}
+
+do_execsql_test 4.1 {
+  SELECT avg(c) FILTER (WHERE b!=1) AS h FROM t1 GROUP BY a ORDER BY h;
+} {2.0 5.0 10.0}
+do_execsql_test 4.2 {
+  SELECT avg(c) FILTER (WHERE b!=1) AS h FROM t1 GROUP BY a ORDER BY (h+1.0);
+} {2.0 5.0 10.0}
+do_execsql_test 4.3 {
+  SELECT a, avg(c) FILTER (WHERE b!=1) AS h FROM t1 GROUP BY a ORDER BY avg(c);
+} {c 2.0 a 10.0 b 5.0}
+do_execsql_test 4.4 {
+  SELECT a, avg(c) FILTER (WHERE b!=1) FROM t1 GROUP BY a ORDER BY 2
+} {c 2.0 b 5.0 a 10.0}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 5.0 {
+  CREATE TABLE t1(a, b);
+  INSERT INTO t1 VALUES(1, 2);
+  INSERT INTO t1 VALUES(1, 3);
+}
+
+do_execsql_test 5.1 {
+  SELECT count(*) FILTER (WHERE b>2) FROM (SELECT * FROM t1) 
+} {1}
+
+do_execsql_test 5.2 {
+  SELECT count(*) FILTER (WHERE b>2) OVER () FROM (SELECT * FROM t1) 
+} {1 1}
+
+do_execsql_test 5.3 {
+  SELECT count(*) FILTER (WHERE b>2) OVER (ORDER BY b) FROM (SELECT * FROM t1) 
+} {0 1}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 6.0 {
+  CREATE TABLE t1(a,b);
+  INSERT INTO t1 VALUES(1,1);
+  INSERT INTO t1 VALUES(2,2);
+  CREATE TABLE t2(x,y);
+  INSERT INTO t2 VALUES(1,1);
+}
+
+do_execsql_test 6.1 {
+  SELECT (SELECT COUNT(a) FILTER(WHERE x) FROM t2) FROM t1;
+} {1 1}
+do_execsql_test 6.2 {
+  SELECT (SELECT COUNT(a+x) FROM t2) FROM t1;
+} {1 1}
+do_execsql_test 6.3 {
+  SELECT (SELECT COUNT(a) FROM t2) FROM t1;
+} {2}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 7.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+  INSERT INTO t1 VALUES(321, 100000);
+  INSERT INTO t1 VALUES(111, 110000);
+  INSERT INTO t1 VALUES(444, 120000);
+  INSERT INTO t1 VALUES(222, 130000);
+}
+
+do_execsql_test 7.1 {
+  SELECT max(a), max(a) FILTER (WHERE b<12345), b FROM t1;
+} {
+  444 {} 120000
+}
+
+# 2023-02-17 dbsqlfuzz 4f8e0de6e272bbbb3e1b41cb5aea31e0b47297e3
+# count() with FILTER clause using the COUNTOFVIEW optimization.
+#
+reset_db
+do_execsql_test 8.0 {
+  CREATE TABLE t0(c0 INT);
+  CREATE TABLE t1a(a INTEGER PRIMARY KEY, b TEXT);
+  INSERT INTO t1a VALUES(1,'one'),(2,NULL),(3,'three');
+  CREATE TABLE t1b(c INTEGER PRIMARY KEY, d TEXT);
+  INSERT INTO t1b VALUES(4,'four'),(5,NULL),(6,'six');
+  CREATE VIEW t1 AS SELECT a, b FROM t1a UNION ALL SELECT c, d FROM t1b;
+  SELECT count()FILTER(WHERE b IS NULL) FROM t1;
+} 2
+
+finish_test
diff --git a/test/filter2.tcl b/test/filter2.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..f3871f80bc1499d11686efc70774896787c01832
--- /dev/null
+++ b/test/filter2.tcl
@@ -0,0 +1,132 @@
+# 2018 May 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname $argv0] pg_common.tcl]
+
+#=========================================================================
+
+
+start_test filter2 "2019 July 2"
+
+ifcapable !windowfunc
+
+execsql_test 1.0 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b INTEGER);
+  INSERT INTO t1 VALUES
+   (1, 7), (2, 3), (3, 5), (4, 30), (5, 26), (6, 23), (7, 27),
+   (8, 3), (9, 17), (10, 26), (11, 33), (12, 25), (13, NULL), (14, 47),
+   (15, 36), (16, 13), (17, 45), (18, 31), (19, 11), (20, 36), (21, 37),
+   (22, 21), (23, 22), (24, 14), (25, 16), (26, 3), (27, 7), (28, 29),
+   (29, 50), (30, 38), (31, 3), (32, 36), (33, 12), (34, 4), (35, 46),
+   (36, 3), (37, 48), (38, 23), (39, NULL), (40, 24), (41, 5), (42, 46),
+   (43, 11), (44, NULL), (45, 18), (46, 25), (47, 15), (48, 18), (49, 23);
+}
+
+execsql_test 1.1 { SELECT sum(b) FROM t1 }
+
+execsql_test 1.2 { SELECT sum(b) FILTER (WHERE a<10) FROM t1 }
+
+execsql_test 1.3 { SELECT count(DISTINCT b) FROM t1 }
+
+execsql_test 1.4 { SELECT count(DISTINCT b) FILTER (WHERE a!=19) FROM t1 }
+
+execsql_test 1.5 { 
+  SELECT min(b) FILTER (WHERE a>19),
+         min(b) FILTER (WHERE a>0),
+         max(a+b) FILTER (WHERE a>19),
+         max(b+a) FILTER (WHERE a BETWEEN 10 AND 40)
+  FROM t1;
+}
+
+execsql_test 1.6 { 
+  SELECT min(b),
+         min(b),
+         max(a+b),
+         max(b+a)
+  FROM t1
+  GROUP BY (a%10)
+  ORDER BY 1, 2, 3, 4;
+}
+
+execsql_test 1.7 { 
+  SELECT min(b) FILTER (WHERE a>19),
+         min(b) FILTER (WHERE a>0),
+         max(a+b) FILTER (WHERE a>19),
+         max(b+a) FILTER (WHERE a BETWEEN 10 AND 40)
+  FROM t1
+  GROUP BY (a%10)
+  ORDER BY 1, 2, 3, 4;
+}
+
+execsql_test 1.8 { 
+  SELECT sum(a+b) FILTER (WHERE a=NULL) FROM t1
+}
+
+execsql_test 1.9 {
+  SELECT (a%5) FROM t1 GROUP BY (a%5) 
+  HAVING sum(b) FILTER (WHERE b<20) > 34
+  ORDER BY 1
+}
+
+execsql_test 1.10 {
+  SELECT (a%5), sum(b) FILTER (WHERE b<20) AS bbb
+  FROM t1
+  GROUP BY (a%5) HAVING sum(b) FILTER (WHERE b<20) >34
+  ORDER BY 1
+}
+
+execsql_test 1.11 {
+  SELECT (a%5), sum(b) FILTER (WHERE b<20) AS bbb
+  FROM t1
+  GROUP BY (a%5) HAVING sum(b) FILTER (WHERE b<20) >34
+  ORDER BY 2
+}
+
+execsql_test 1.12 {
+  SELECT (a%5), 
+    sum(b) FILTER (WHERE b<20) AS bbb,
+    count(distinct b) FILTER (WHERE b<20 OR a=13) AS ccc
+  FROM t1 GROUP BY (a%5)
+  ORDER BY 2
+}
+
+execsql_test 1.13 {
+  SELECT 
+    string_agg(CAST(b AS TEXT), '_') FILTER (WHERE b%2!=0),
+    string_agg(CAST(b AS TEXT), '_') FILTER (WHERE b%2!=1),
+    count(*) FILTER (WHERE b%2!=0),
+    count(*) FILTER (WHERE b%2!=1)
+  FROM t1;
+}
+
+execsql_float_test 1.14 {
+  SELECT 
+    avg(b) FILTER (WHERE b>a),
+    avg(b) FILTER (WHERE b<a)
+  FROM t1 GROUP BY (a%2) ORDER BY 1,2;
+}
+
+execsql_test 1.15 {
+  SELECT 
+    a/5,
+    sum(b) FILTER (WHERE a%5=0),
+    sum(b) FILTER (WHERE a%5=1),
+    sum(b) FILTER (WHERE a%5=2),
+    sum(b) FILTER (WHERE a%5=3),
+    sum(b) FILTER (WHERE a%5=4)
+  FROM t1 GROUP BY (a/5) ORDER BY 1;
+}
+
+finish_test
+
+
diff --git a/test/filter2.test b/test/filter2.test
new file mode 100644
index 0000000000000000000000000000000000000000..06cfd2a4c32155e1a7708869ae6c7ac29236a3dd
--- /dev/null
+++ b/test/filter2.test
@@ -0,0 +1,156 @@
+# 2019 July 2
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+
+####################################################
+# DO NOT EDIT! THIS FILE IS AUTOMATICALLY GENERATED!
+####################################################
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix filter2
+
+ifcapable !windowfunc { finish_test ; return }
+do_execsql_test 1.0 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b INTEGER);
+  INSERT INTO t1 VALUES
+   (1, 7), (2, 3), (3, 5), (4, 30), (5, 26), (6, 23), (7, 27),
+   (8, 3), (9, 17), (10, 26), (11, 33), (12, 25), (13, NULL), (14, 47),
+   (15, 36), (16, 13), (17, 45), (18, 31), (19, 11), (20, 36), (21, 37),
+   (22, 21), (23, 22), (24, 14), (25, 16), (26, 3), (27, 7), (28, 29),
+   (29, 50), (30, 38), (31, 3), (32, 36), (33, 12), (34, 4), (35, 46),
+   (36, 3), (37, 48), (38, 23), (39, NULL), (40, 24), (41, 5), (42, 46),
+   (43, 11), (44, NULL), (45, 18), (46, 25), (47, 15), (48, 18), (49, 23);
+} {}
+
+do_execsql_test 1.1 {
+  SELECT sum(b) FROM t1
+} {1041}
+
+do_execsql_test 1.2 {
+  SELECT sum(b) FILTER (WHERE a<10) FROM t1
+} {141}
+
+do_execsql_test 1.3 {
+  SELECT count(DISTINCT b) FROM t1
+} {31}
+
+do_execsql_test 1.4 {
+  SELECT count(DISTINCT b) FILTER (WHERE a!=19) FROM t1
+} {31}
+
+do_execsql_test 1.5 {
+  SELECT min(b) FILTER (WHERE a>19),
+         min(b) FILTER (WHERE a>0),
+         max(a+b) FILTER (WHERE a>19),
+         max(b+a) FILTER (WHERE a BETWEEN 10 AND 40)
+  FROM t1;
+} {3 3 88 85}
+
+do_execsql_test 1.6 {
+  SELECT min(b),
+         min(b),
+         max(a+b),
+         max(b+a)
+  FROM t1
+  GROUP BY (a%10)
+  ORDER BY 1, 2, 3, 4;
+} {3 3 58 58   3 3 66 66   3 3 71 71   3 3 88 88   4 4 61 61   5 5 54 54
+  7 7 85 85   11 11 79 79   16 16 81 81   24 24 68 68}
+
+do_execsql_test 1.7 {
+  SELECT min(b) FILTER (WHERE a>19),
+         min(b) FILTER (WHERE a>0),
+         max(a+b) FILTER (WHERE a>19),
+         max(b+a) FILTER (WHERE a BETWEEN 10 AND 40)
+  FROM t1
+  GROUP BY (a%10)
+  ORDER BY 1, 2, 3, 4;
+} {3 3 58 58   3 3 71 39   4 4 38 61   7 7 85 85   11 5 54 45   16 16 81 81
+  18 3 66 61   21 3 88 68   23 11 79 79   24 24 68 68}
+
+do_execsql_test 1.8 {
+  SELECT sum(a+b) FILTER (WHERE a=NULL) FROM t1
+} {{}}
+
+do_execsql_test 1.9 {
+  SELECT (a%5) FROM t1 GROUP BY (a%5) 
+  HAVING sum(b) FILTER (WHERE b<20) > 34
+  ORDER BY 1
+} {3   4}
+
+do_execsql_test 1.10 {
+  SELECT (a%5), sum(b) FILTER (WHERE b<20) AS bbb
+  FROM t1
+  GROUP BY (a%5) HAVING sum(b) FILTER (WHERE b<20) >34
+  ORDER BY 1
+} {3 49   4 46}
+
+do_execsql_test 1.11 {
+  SELECT (a%5), sum(b) FILTER (WHERE b<20) AS bbb
+  FROM t1
+  GROUP BY (a%5) HAVING sum(b) FILTER (WHERE b<20) >34
+  ORDER BY 2
+} {4 46   3 49}
+
+do_execsql_test 1.12 {
+  SELECT (a%5), 
+    sum(b) FILTER (WHERE b<20) AS bbb,
+    count(distinct b) FILTER (WHERE b<20 OR a=13) AS ccc
+  FROM t1 GROUP BY (a%5)
+  ORDER BY 2
+} {2 25 3   0 34 2   1 34 4   4 46 4   3 49 5}
+
+do_execsql_test 1.13 {
+  SELECT 
+    string_agg(CAST(b AS TEXT), '_') FILTER (WHERE b%2!=0),
+    group_concat(CAST(b AS TEXT), '_') FILTER (WHERE b%2!=1),
+    count(*) FILTER (WHERE b%2!=0),
+    count(*) FILTER (WHERE b%2!=1)
+  FROM t1;
+} {7_3_5_23_27_3_17_33_25_47_13_45_31_11_37_21_3_7_29_3_3_23_5_11_25_15_23 30_26_26_36_36_22_14_16_50_38_36_12_4_46_48_24_46_18_18 27 19}
+
+
+do_test 1.14 {
+  set myres {}
+  foreach r [db eval {SELECT 
+    avg(b) FILTER (WHERE b>a),
+    avg(b) FILTER (WHERE b<a)
+  FROM t1 GROUP BY (a%2) ORDER BY 1,2;}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {30.8333 13.7273 31.4167 13.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+do_execsql_test 1.15 {
+  SELECT 
+    a/5,
+    sum(b) FILTER (WHERE a%5=0),
+    sum(b) FILTER (WHERE a%5=1),
+    sum(b) FILTER (WHERE a%5=2),
+    sum(b) FILTER (WHERE a%5=3),
+    sum(b) FILTER (WHERE a%5=4)
+  FROM t1 GROUP BY (a/5) ORDER BY 1;
+} {0 {} 7 3 5 30   1 26 23 27 3 17   2 26 33 25 {} 47   3 36 13 45 31 11
+  4 36 37 21 22 14   5 16 3 7 29 50   6 38 3 36 12 4   7 46 3 48 23 {}
+  8 24 5 46 11 {}   9 18 25 15 18 23}
+
+finish_test
diff --git a/test/filterfault.test b/test/filterfault.test
new file mode 100644
index 0000000000000000000000000000000000000000..a8cde1f555ab3394af43b1de6674c85083541471
--- /dev/null
+++ b/test/filterfault.test
@@ -0,0 +1,44 @@
+# 2018 May 8
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix filterfault
+
+ifcapable !windowfunc {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b, c, d);
+  INSERT INTO t1 VALUES(1, 2, 3, 4);
+  INSERT INTO t1 VALUES(5, 6, 7, 8);
+  INSERT INTO t1 VALUES(9, 10, 11, 12);
+}
+faultsim_save_and_close
+
+do_faultsim_test 1 -faults oom-t* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql {
+    SELECT sum(a) FILTER (WHERE b<5),
+           count() FILTER (WHERE d!=c) 
+      FROM t1 GROUP BY c ORDER BY 1;
+  }
+} -test {
+  faultsim_test_result {0 {{} 1 {} 1 1 1}}
+}
+
+
+finish_test
diff --git a/test/fkey1.test b/test/fkey1.test
new file mode 100644
index 0000000000000000000000000000000000000000..46e7f64a193be12db2e3dd9e4802f75c11783580
--- /dev/null
+++ b/test/fkey1.test
@@ -0,0 +1,286 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests for foreign keys.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix fkey1
+
+ifcapable {!foreignkey} {
+  finish_test
+  return
+}
+
+# Create a table and some data to work with.
+#
+do_test fkey1-1.0 {
+  execsql {
+    CREATE TABLE t1(
+      a INTEGER PRIMARY KEY,
+      b INTEGER
+           REFERENCES t1 ON DELETE CASCADE
+           REFERENCES t2,
+      c TEXT,
+      FOREIGN KEY (b,c) REFERENCES t2(x,y) ON UPDATE CASCADE
+    );
+  }
+} {}
+do_test fkey1-1.1 {
+  execsql {
+    CREATE TABLE t2(
+      x INTEGER PRIMARY KEY,
+      y TEXT
+    );
+  }
+} {}
+do_test fkey1-1.2 {
+  execsql {
+    CREATE TABLE t3(
+      a INTEGER REFERENCES t2,
+      b INTEGER REFERENCES t1,
+      FOREIGN KEY (a,b) REFERENCES t2(x,y)
+    );
+  }
+} {}
+
+do_test fkey1-2.1 {
+  execsql {
+    CREATE TABLE t4(a integer primary key);
+    CREATE TABLE t5(x references t4);
+    CREATE TABLE t6(x references t4);
+    CREATE TABLE t7(x references t4);
+    CREATE TABLE t8(x references t4);
+    CREATE TABLE t9(x references t4);
+    CREATE TABLE t10(x references t4);
+    DROP TABLE t7;
+    DROP TABLE t9;
+    DROP TABLE t5;
+    DROP TABLE t8;
+    DROP TABLE t6;
+    DROP TABLE t10;
+  }
+} {}
+
+do_test fkey1-3.1 {
+  execsql {
+    CREATE TABLE t5(a PRIMARY KEY, b, c);
+    CREATE TABLE t6(
+      d REFERENCES t5,
+      e REFERENCES t5(c)
+    );
+    PRAGMA foreign_key_list(t6);
+  }
+} [concat                                         \
+  {0 0 t5 e c {NO ACTION} {NO ACTION} NONE}       \
+  {1 0 t5 d {} {NO ACTION} {NO ACTION} NONE}      \
+]
+do_test fkey1-3.2 {
+  execsql {
+    CREATE TABLE t7(d, e, f,
+      FOREIGN KEY (d, e) REFERENCES t5(a, b)
+    );
+    PRAGMA foreign_key_list(t7);
+  }
+} [concat                                   \
+  {0 0 t5 d a {NO ACTION} {NO ACTION} NONE} \
+  {0 1 t5 e b {NO ACTION} {NO ACTION} NONE} \
+]
+do_test fkey1-3.3 {
+  execsql {
+    CREATE TABLE t8(d, e, f,
+      FOREIGN KEY (d, e) REFERENCES t5 ON DELETE CASCADE ON UPDATE SET NULL
+    );
+    PRAGMA foreign_key_list(t8);
+  }
+} [concat                        \
+  {0 0 t5 d {} {SET NULL} CASCADE NONE} \
+  {0 1 t5 e {} {SET NULL} CASCADE NONE} \
+]
+do_test fkey1-3.4 {
+  execsql {
+    CREATE TABLE t9(d, e, f,
+      FOREIGN KEY (d, e) REFERENCES t5 ON DELETE CASCADE ON UPDATE SET DEFAULT
+    );
+    PRAGMA foreign_key_list(t9);
+  }
+} [concat                        \
+  {0 0 t5 d {} {SET DEFAULT} CASCADE NONE} \
+  {0 1 t5 e {} {SET DEFAULT} CASCADE NONE} \
+]
+do_test fkey1-3.5 {
+  sqlite3_db_status db DBSTATUS_DEFERRED_FKS 0
+} {0 0 0}
+
+# Stress the dequoting logic.  The first test is not so bad.
+do_execsql_test fkey1-4.0 {
+  PRAGMA foreign_keys=ON;
+  CREATE TABLE "xx1"("xx2" TEXT PRIMARY KEY, "xx3" TEXT);
+  INSERT INTO "xx1"("xx2","xx3") VALUES('abc','def');
+  CREATE TABLE "xx4"("xx5" TEXT REFERENCES "xx1" ON DELETE CASCADE);
+  INSERT INTO "xx4"("xx5") VALUES('abc');
+  INSERT INTO "xx1"("xx2","xx3") VALUES('uvw','xyz');
+  SELECT 1, "xx5" FROM "xx4";
+  DELETE FROM "xx1";
+  SELECT 2, "xx5" FROM "xx4";
+} {1 abc}
+
+# This case is identical to the previous except the "xx" in each name
+# is changed to a single escaped double-quote character.
+do_execsql_test fkey1-4.1 {
+  PRAGMA foreign_keys=ON;
+  CREATE TABLE """1"("""2" TEXT PRIMARY KEY, """3" TEXT);
+  INSERT INTO """1"("""2","""3") VALUES('abc','def');
+  CREATE TABLE """4"("""5" TEXT REFERENCES """1" ON DELETE CASCADE);
+  INSERT INTO """4"("""5") VALUES('abc');
+  INSERT INTO """1"("""2","""3") VALUES('uvw','xyz');
+  SELECT 1, """5" FROM """4";
+  DELETE FROM """1";
+  SELECT 2, """5" FROM """4";
+} {1 abc}
+do_execsql_test fkey1-4.2 {
+  PRAGMA table_info="""1";
+} {0 {"2} TEXT 0 {} 1 1 {"3} TEXT 0 {} 0}
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test fkey1-5.1 {
+  CREATE TABLE t11(
+    x INTEGER PRIMARY KEY, 
+    parent REFERENCES t11 ON DELETE CASCADE
+  );
+  INSERT INTO t11 VALUES (1, NULL), (2, 1), (3, 2);
+} {}
+
+# The REPLACE part of this statement deletes the row (2, 1). Then the 
+# DELETE CASCADE caused by deleting that row removes the (3, 2) row. Which
+# would have been the parent of the new row being inserted. Causing an
+# FK violation.
+#
+do_catchsql_test fkey1-5.2 {
+  INSERT OR REPLACE INTO t11 VALUES (2, 3);
+} {1 {FOREIGN KEY constraint failed}}
+
+# Make sure sqlite3_trace() output works with triggers used to implement
+# FK constraints
+#
+ifcapable trace {
+  proc sqltrace {txt} {
+    global traceoutput
+    lappend traceoutput $txt
+  }
+  do_test fkey1-5.2.1 {
+    unset -nocomplain traceoutput
+    db trace sqltrace
+    catch {db eval {INSERT OR REPLACE INTO t11 VALUES(2,3);}}
+    set traceoutput
+  } {{INSERT OR REPLACE INTO t11 VALUES(2,3);} {INSERT OR REPLACE INTO t11 VALUES(2,3);} {INSERT OR REPLACE INTO t11 VALUES(2,3);}}
+}
+
+# A similar test to the above.
+do_execsql_test fkey1-5.3 {
+  CREATE TABLE Foo (
+    Id INTEGER PRIMARY KEY, 
+    ParentId INTEGER REFERENCES Foo(Id) ON DELETE CASCADE, C1
+  );
+  INSERT OR REPLACE INTO Foo(Id, ParentId, C1) VALUES (1, null, 'A');
+  INSERT OR REPLACE INTO Foo(Id, ParentId, C1) VALUES (2, 1, 'A-2-1');
+  INSERT OR REPLACE INTO Foo(Id, ParentId, C1) VALUES (3, 2, 'A-3-2');
+  INSERT OR REPLACE INTO Foo(Id, ParentId, C1) VALUES (4, 3, 'A-4-3');
+}
+do_catchsql_test fkey1-5.4 {
+  INSERT OR REPLACE INTO Foo(Id, ParentId, C1) VALUES (2, 3, 'A-2-3');
+} {1 {FOREIGN KEY constraint failed}}
+
+#-------------------------------------------------------------------------
+# Check that foreign key processing is not fooled by partial indexes
+# on the parent table.
+#
+do_execsql_test 6.0 {
+  CREATE TABLE p1(x, y);
+  CREATE UNIQUE INDEX p1x ON p1(x) WHERE y<2;
+  INSERT INTO p1 VALUES(1, 1);
+  CREATE TABLE c1(a REFERENCES p1(x));
+}
+
+do_catchsql_test 6.1 {
+  INSERT INTO c1 VALUES(1);
+} {1 {foreign key mismatch - "c1" referencing "p1"}}
+
+do_execsql_test 6.2 {
+  CREATE UNIQUE INDEX p1x2 ON p1(x);
+  INSERT INTO c1 VALUES(1);
+} {}
+
+# 2021-07-03 https://sqlite.org/forum/forumpost/a6b0c05277
+# 2021-07-07 https://sqlite.org/forum/forumpost/79c9e4797d
+# Failure to allocate enough registers in the VDBE for a
+# PRAGMA foreign_key_check when the foreign key has more
+# columns than the table.
+#
+reset_db
+do_execsql_test 7.1 {
+  PRAGMA foreign_keys=OFF;
+  CREATE TABLE t1(a,b,c,FOREIGN KEY(a,a,a,a,a,a,a,a,a,a,a,a,a,a) REFERENCES t0);
+  INSERT INTO t1 VALUES(1,2,3);
+  PRAGMA foreign_key_check;
+} {t1 1 t0 0}
+do_execsql_test 7.2 {
+  DROP TABLE t1;
+  CREATE TABLE t1(a,b,c AS(1),d, FOREIGN KEY(c,d,b,a,b,d,b,c) REFERENCES t0);
+  PRAGMA foreign_key_check;
+} {}
+
+# 2021-12-31 forum https://sqlite.org/forum/forumpost/24bd1fef7e9323ef
+# Memory leak caused by sqlite3NestedParse() running on a corrupt system
+# table.  Discovered by Jingzhou Fu.
+#
+reset_db
+do_execsql_test 8.1 {
+  PRAGMA writable_schema=ON;
+  PRAGMA foreign_keys = ON;
+  CREATE TABLE sqlite_stat1 (tbl INTEGER PRIMARY KEY DESC, idx UNIQUE DEFAULT NULL) WITHOUT ROWID;
+  PRAGMA writable_schema=OFF;
+  CREATE TABLE sqlsim4(stat PRIMARY KEY);;
+  CREATE TABLE t1(sqlsim7 REFERENCES sqlite_stat1 ON DELETE CASCADE);
+  DROP table "sqlsim4";
+} {}
+# 2022-01-01 dbsqlfuzz 1c57440219f6f0aedf5e8f72a8ddd75f15aea381
+# Follow-up case to the above.  Assertion is not true if the schema
+# is corrupt.
+reset_db
+database_may_be_corrupt
+do_execsql_test 8.2 {
+  CREATE TABLE t1(a REFERENCES sqlite_stat1 ON DELETE CASCADE);
+  CREATE TABLE t2(a TEXT PRIMARY KEY);
+  PRAGMA writable_schema=ON;
+  CREATE TABLE sqlite_stat1(tbl INTEGER PRIMARY KEY DESC, idx UNIQUE DEFAULT NULL) WITHOUT ROWID;
+  UPDATE sqlite_schema SET name='sqlite_autoindex_sqlite_stat1_1' WHERE name='sqlite_autoindex_sqlite_stat1_2';
+  PRAGMA writable_schema=RESET;
+} {}
+do_catchsql_test 8.3 {
+  REINDEX;
+} {1 {database disk image is malformed}}
+
+# 2023-04-13 https://bugs.chromium.org/p/chromium/issues/detail?id=1405220
+# Avoid double-de-quoting of table names when processing foreign keys.
+#
+reset_db
+do_execsql_test 9.1 {
+  PRAGMA foreign_keys = ON;
+  CREATE TABLE """1"("""2", """3" PRIMARY KEY);
+  CREATE TABLE """4"("""5" REFERENCES """1" ON DELETE RESTRICT);
+  DELETE FROM """1";
+}
+
+finish_test
diff --git a/test/fkey2.test b/test/fkey2.test
new file mode 100644
index 0000000000000000000000000000000000000000..6f9bdc2b7c929eeb167f435569a3299426e67358
--- /dev/null
+++ b/test/fkey2.test
@@ -0,0 +1,2047 @@
+# 2009 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests for foreign keys.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable {!foreignkey||!trigger} {
+  finish_test
+  return
+}
+
+#-------------------------------------------------------------------------
+# Test structure:
+#
+# fkey2-1.*: Simple tests to check that immediate and deferred foreign key 
+#            constraints work when not inside a transaction.
+#            
+# fkey2-2.*: Tests to verify that deferred foreign keys work inside
+#            explicit transactions (i.e that processing really is deferred).
+#
+# fkey2-3.*: Tests that a statement transaction is rolled back if an
+#            immediate foreign key constraint is violated.
+#
+# fkey2-4.*: Test that FK actions may recurse even when recursive triggers
+#            are disabled.
+#
+# fkey2-5.*: Check that if foreign-keys are enabled, it is not possible
+#            to write to an FK column using the incremental blob API.
+#
+# fkey2-6.*: Test that FK processing is automatically disabled when 
+#            running VACUUM.
+#
+# fkey2-7.*: Test using an IPK as the key in the child (referencing) table.
+#
+# fkey2-8.*: Test that enabling/disabling foreign key support while a 
+#            transaction is active is not possible.
+#
+# fkey2-9.*: Test SET DEFAULT actions.
+#
+# fkey2-10.*: Test errors.
+#
+# fkey2-11.*: Test CASCADE actions.
+#
+# fkey2-12.*: Test RESTRICT actions.
+#
+# fkey2-13.*: Test that FK processing is performed when a row is REPLACED by
+#             an UPDATE or INSERT statement.
+#
+# fkey2-14.*: Test the ALTER TABLE and DROP TABLE commands.
+#
+# fkey2-15.*: Test that if there are no (known) outstanding foreign key 
+#             constraint violations in the database, inserting into a parent
+#             table or deleting from a child table does not cause SQLite
+#             to check if this has repaired an outstanding violation.
+#
+# fkey2-16.*: Test that rows that refer to themselves may be inserted, 
+#             updated and deleted.
+#
+# fkey2-17.*: Test that the "count_changes" pragma does not interfere with
+#             FK constraint processing.
+# 
+# fkey2-18.*: Test that the authorization callback is invoked when processing
+#             FK constraints.
+#
+# fkey2-20.*: Test that ON CONFLICT clauses specified as part of statements
+#             do not affect the operation of FK constraints.
+#
+# fkey2-genfkey.*: Tests that were used with the shell tool .genfkey
+#            command. Recycled to test the built-in implementation.
+#
+# fkey2-dd08e5.*:  Tests to verify that ticket dd08e5a988d00decc4a543daa8d
+#                  has been fixed.
+#
+
+
+execsql { PRAGMA foreign_keys = on }
+
+set FkeySimpleSchema {
+  PRAGMA foreign_keys = on;
+  CREATE TABLE t1(a PRIMARY KEY, b);
+  CREATE TABLE t2(c REFERENCES t1(a) /D/ , d);
+
+  CREATE TABLE t3(a PRIMARY KEY, b);
+  CREATE TABLE t4(c REFERENCES t3 /D/, d);
+
+  CREATE TABLE t7(a, b INTEGER PRIMARY KEY);
+  CREATE TABLE t8(c REFERENCES t7 /D/, d);
+
+  CREATE TABLE t9(a REFERENCES nosuchtable, b);
+  CREATE TABLE t10(a REFERENCES t9(c) /D/, b);
+}
+
+
+set FkeySimpleTests {
+  1.1  "INSERT INTO t2 VALUES(1, 3)"      {1 {FOREIGN KEY constraint failed}}
+  1.2  "INSERT INTO t1 VALUES(1, 2)"      {0 {}}
+  1.3  "INSERT INTO t2 VALUES(1, 3)"      {0 {}}
+  1.4  "INSERT INTO t2 VALUES(2, 4)"      {1 {FOREIGN KEY constraint failed}}
+  1.5  "INSERT INTO t2 VALUES(NULL, 4)"   {0 {}}
+  1.6  "UPDATE t2 SET c=2 WHERE d=4"      {1 {FOREIGN KEY constraint failed}}
+  1.7  "UPDATE t2 SET c=1 WHERE d=4"      {0 {}}
+  1.9  "UPDATE t2 SET c=1 WHERE d=4"      {0 {}}
+  1.10 "UPDATE t2 SET c=NULL WHERE d=4"   {0 {}}
+  1.11 "DELETE FROM t1 WHERE a=1"         {1 {FOREIGN KEY constraint failed}}
+  1.12 "UPDATE t1 SET a = 2"              {1 {FOREIGN KEY constraint failed}}
+  1.13 "UPDATE t1 SET a = 1"              {0 {}}
+
+  2.1  "INSERT INTO t4 VALUES(1, 3)"      {1 {FOREIGN KEY constraint failed}}
+  2.2  "INSERT INTO t3 VALUES(1, 2)"      {0 {}}
+  2.3  "INSERT INTO t4 VALUES(1, 3)"      {0 {}}
+
+  4.1  "INSERT INTO t8 VALUES(1, 3)"      {1 {FOREIGN KEY constraint failed}}
+  4.2  "INSERT INTO t7 VALUES(2, 1)"      {0 {}}
+  4.3  "INSERT INTO t8 VALUES(1, 3)"      {0 {}}
+  4.4  "INSERT INTO t8 VALUES(2, 4)"      {1 {FOREIGN KEY constraint failed}}
+  4.5  "INSERT INTO t8 VALUES(NULL, 4)"   {0 {}}
+  4.6  "UPDATE t8 SET c=2 WHERE d=4"      {1 {FOREIGN KEY constraint failed}}
+  4.7  "UPDATE t8 SET c=1 WHERE d=4"      {0 {}}
+  4.9  "UPDATE t8 SET c=1 WHERE d=4"      {0 {}}
+  4.10 "UPDATE t8 SET c=NULL WHERE d=4"   {0 {}}
+  4.11 "DELETE FROM t7 WHERE b=1"         {1 {FOREIGN KEY constraint failed}}
+  4.12 "UPDATE t7 SET b = 2"              {1 {FOREIGN KEY constraint failed}}
+  4.13 "UPDATE t7 SET b = 1"              {0 {}}
+  4.14 "INSERT INTO t8 VALUES('a', 'b')"  {1 {FOREIGN KEY constraint failed}}
+  4.15 "UPDATE t7 SET b = 5"              {1 {FOREIGN KEY constraint failed}}
+  4.16 "UPDATE t7 SET rowid = 5"          {1 {FOREIGN KEY constraint failed}}
+  4.17 "UPDATE t7 SET a = 10"             {0 {}}
+
+  5.1  "INSERT INTO t9 VALUES(1, 3)"      {1 {no such table: main.nosuchtable}}
+  5.2  "INSERT INTO t10 VALUES(1, 3)"  
+                            {1 {foreign key mismatch - "t10" referencing "t9"}}
+}
+
+do_test fkey2-1.1.0 {
+  execsql [string map {/D/ {}} $FkeySimpleSchema]
+} {}
+foreach {tn zSql res} $FkeySimpleTests {
+  do_test fkey2-1.1.$tn.1 { catchsql $zSql } $res
+  do_test fkey2-1.1.$tn.2 { execsql {PRAGMA foreign_key_check(t1)} } {}
+  do_test fkey2-1.1.$tn.3 { execsql {PRAGMA foreign_key_check(t2)} } {}
+  do_test fkey2-1.1.$tn.4 { execsql {PRAGMA foreign_key_check(t3)} } {}
+  do_test fkey2-1.1.$tn.5 { execsql {PRAGMA foreign_key_check(t4)} } {}
+  do_test fkey2-1.1.$tn.6 { execsql {PRAGMA foreign_key_check(t7)} } {}
+  do_test fkey2-1.1.$tn.7 { execsql {PRAGMA foreign_key_check(t8)} } {}
+}
+drop_all_tables
+
+do_test fkey2-1.2.0 {
+  execsql [string map {/D/ {DEFERRABLE INITIALLY DEFERRED}} $FkeySimpleSchema]
+} {}
+foreach {tn zSql res} $FkeySimpleTests {
+  do_test fkey2-1.2.$tn { catchsql $zSql } $res
+  do_test fkey2-1.2.$tn.2 { execsql {PRAGMA foreign_key_check(t1)} } {}
+  do_test fkey2-1.2.$tn.3 { execsql {PRAGMA foreign_key_check(t2)} } {}
+  do_test fkey2-1.2.$tn.4 { execsql {PRAGMA foreign_key_check(t3)} } {}
+  do_test fkey2-1.2.$tn.5 { execsql {PRAGMA foreign_key_check(t4)} } {}
+  do_test fkey2-1.2.$tn.6 { execsql {PRAGMA foreign_key_check(t7)} } {}
+  do_test fkey2-1.2.$tn.7 { execsql {PRAGMA foreign_key_check(t8)} } {}
+}
+drop_all_tables
+
+do_test fkey2-1.3.0 {
+  execsql [string map {/D/ {}} $FkeySimpleSchema]
+  execsql { PRAGMA count_changes = 1 }
+} {}
+foreach {tn zSql res} $FkeySimpleTests {
+  if {$res == "0 {}"} { set res {0 1} }
+  do_test fkey2-1.3.$tn { catchsql $zSql } $res
+  do_test fkey2-1.3.$tn.2 { execsql {PRAGMA foreign_key_check(t1)} } {}
+  do_test fkey2-1.3.$tn.3 { execsql {PRAGMA foreign_key_check(t2)} } {}
+  do_test fkey2-1.3.$tn.4 { execsql {PRAGMA foreign_key_check(t3)} } {}
+  do_test fkey2-1.3.$tn.5 { execsql {PRAGMA foreign_key_check(t4)} } {}
+  do_test fkey2-1.3.$tn.6 { execsql {PRAGMA foreign_key_check(t7)} } {}
+  do_test fkey2-1.3.$tn.7 { execsql {PRAGMA foreign_key_check(t8)} } {}
+}
+execsql { PRAGMA count_changes = 0 }
+drop_all_tables
+
+do_test fkey2-1.4.0 {
+  execsql [string map {/D/ {}} $FkeySimpleSchema]
+  execsql { PRAGMA count_changes = 1 }
+} {}
+foreach {tn zSql res} $FkeySimpleTests {
+  if {$res == "0 {}"} { set res {0 1} }
+  execsql BEGIN
+  do_test fkey2-1.4.$tn { catchsql $zSql } $res
+  execsql COMMIT
+}
+execsql { PRAGMA count_changes = 0 }
+drop_all_tables
+
+# Special test: When the parent key is an IPK, make sure the affinity of
+# the IPK is not applied to the child key value before it is inserted
+# into the child table.
+do_test fkey2-1.5.1 {
+  execsql {
+    CREATE TABLE i(i INTEGER PRIMARY KEY);
+    CREATE TABLE j(j REFERENCES i);
+    INSERT INTO i VALUES(35);
+    INSERT INTO j VALUES('35.0');
+    SELECT j, typeof(j) FROM j;
+  }
+} {35.0 text}
+do_test fkey2-1.5.2 {
+  catchsql { DELETE FROM i }
+} {1 {FOREIGN KEY constraint failed}}
+
+# Same test using a regular primary key with integer affinity.
+drop_all_tables
+do_test fkey2-1.6.1 {
+  execsql {
+    CREATE TABLE i(i INT UNIQUE);
+    CREATE TABLE j(j REFERENCES i(i));
+    INSERT INTO i VALUES('35.0');
+    INSERT INTO j VALUES('35.0');
+    SELECT j, typeof(j) FROM j;
+    SELECT i, typeof(i) FROM i;
+  }
+} {35.0 text 35 integer}
+do_test fkey2-1.6.2 {
+  catchsql { DELETE FROM i }
+} {1 {FOREIGN KEY constraint failed}}
+
+# Use a collation sequence on the parent key.
+drop_all_tables
+do_test fkey2-1.7.1 {
+  execsql {
+    CREATE TABLE i(i TEXT COLLATE nocase PRIMARY KEY);
+    CREATE TABLE j(j TEXT COLLATE binary REFERENCES i(i));
+    INSERT INTO i VALUES('SQLite');
+    INSERT INTO j VALUES('sqlite');
+  }
+  catchsql { DELETE FROM i }
+} {1 {FOREIGN KEY constraint failed}}
+
+# Use the parent key collation even if it is default and the child key
+# has an explicit value.
+drop_all_tables
+do_test fkey2-1.7.2 {
+  execsql {
+    CREATE TABLE i(i TEXT PRIMARY KEY);        -- Colseq is "BINARY"
+    CREATE TABLE j(j TEXT COLLATE nocase REFERENCES i(i));
+    INSERT INTO i VALUES('SQLite');
+  }
+  catchsql { INSERT INTO j VALUES('sqlite') }
+} {1 {FOREIGN KEY constraint failed}}
+do_test fkey2-1.7.3 {
+  execsql {
+    INSERT INTO i VALUES('sqlite');
+    INSERT INTO j VALUES('sqlite');
+    DELETE FROM i WHERE i = 'SQLite';
+  }
+  catchsql { DELETE FROM i WHERE i = 'sqlite' }
+} {1 {FOREIGN KEY constraint failed}}
+
+#-------------------------------------------------------------------------
+# This section (test cases fkey2-2.*) contains tests to check that the
+# deferred foreign key constraint logic works.
+#
+proc fkey2-2-test {tn nocommit sql {res {}}} {
+  if {$res eq "FKV"} {
+    set expected {1 {FOREIGN KEY constraint failed}}
+  } else {
+    set expected [list 0 $res]
+  }
+  do_test fkey2-2.$tn [list catchsql $sql] $expected
+  if {$nocommit} {
+    do_test fkey2-2.${tn}c {
+      catchsql COMMIT
+    } {1 {FOREIGN KEY constraint failed}}
+  }
+}
+
+fkey2-2-test 1 0 {
+  CREATE TABLE node(
+    nodeid PRIMARY KEY,
+    parent REFERENCES node DEFERRABLE INITIALLY DEFERRED
+  );
+  CREATE TABLE leaf(
+    cellid PRIMARY KEY,
+    parent REFERENCES node DEFERRABLE INITIALLY DEFERRED
+  );
+}
+
+fkey2-2-test 1  0 "INSERT INTO node VALUES(1, 0)"       FKV
+fkey2-2-test 2  0 "BEGIN"
+fkey2-2-test 3  1   "INSERT INTO node VALUES(1, 0)"
+fkey2-2-test 4  0   "UPDATE node SET parent = NULL"
+fkey2-2-test 5  0 "COMMIT"
+fkey2-2-test 6  0 "SELECT * FROM node" {1 {}}
+
+fkey2-2-test 7  0 "BEGIN"
+fkey2-2-test 8  1   "INSERT INTO leaf VALUES('a', 2)"
+fkey2-2-test 9  1   "INSERT INTO node VALUES(2, 0)"
+fkey2-2-test 10 0   "UPDATE node SET parent = 1 WHERE nodeid = 2"
+fkey2-2-test 11 0 "COMMIT"
+fkey2-2-test 12 0 "SELECT * FROM node" {1 {} 2 1}
+fkey2-2-test 13 0 "SELECT * FROM leaf" {a 2}
+
+fkey2-2-test 14 0 "BEGIN"
+fkey2-2-test 15 1   "DELETE FROM node WHERE nodeid = 2"
+fkey2-2-test 16 0   "INSERT INTO node VALUES(2, NULL)"
+fkey2-2-test 17 0 "COMMIT"
+fkey2-2-test 18 0 "SELECT * FROM node" {1 {} 2 {}}
+fkey2-2-test 19 0 "SELECT * FROM leaf" {a 2}
+
+fkey2-2-test 20 0 "BEGIN"
+fkey2-2-test 21 0   "INSERT INTO leaf VALUES('b', 1)"
+fkey2-2-test 22 0   "SAVEPOINT save"
+fkey2-2-test 23 0     "DELETE FROM node WHERE nodeid = 1"
+fkey2-2-test 24 0   "ROLLBACK TO save"
+fkey2-2-test 25 0 "COMMIT"
+fkey2-2-test 26 0 "SELECT * FROM node" {1 {} 2 {}}
+fkey2-2-test 27 0 "SELECT * FROM leaf" {a 2 b 1}
+
+fkey2-2-test 28 0 "BEGIN"
+fkey2-2-test 29 0   "INSERT INTO leaf VALUES('c', 1)"
+fkey2-2-test 30 0   "SAVEPOINT save"
+fkey2-2-test 31 0     "DELETE FROM node WHERE nodeid = 1"
+fkey2-2-test 32 1   "RELEASE save"
+fkey2-2-test 33 1   "DELETE FROM leaf WHERE cellid = 'b'"
+fkey2-2-test 34 0   "DELETE FROM leaf WHERE cellid = 'c'"
+fkey2-2-test 35 0 "COMMIT"
+fkey2-2-test 36 0 "SELECT * FROM node" {2 {}} 
+fkey2-2-test 37 0 "SELECT * FROM leaf" {a 2}
+
+fkey2-2-test 38 0 "SAVEPOINT outer"
+fkey2-2-test 39 1   "INSERT INTO leaf VALUES('d', 3)"
+fkey2-2-test 40 1 "RELEASE outer"    FKV
+fkey2-2-test 41 1   "INSERT INTO leaf VALUES('e', 3)"
+fkey2-2-test 42 0   "INSERT INTO node VALUES(3, 2)"
+fkey2-2-test 43 0 "RELEASE outer"
+
+fkey2-2-test 44 0 "SAVEPOINT outer"
+fkey2-2-test 45 1   "DELETE FROM node WHERE nodeid=3"
+fkey2-2-test 47 0   "INSERT INTO node VALUES(3, 2)"
+fkey2-2-test 48 0 "ROLLBACK TO outer"
+fkey2-2-test 49 0 "RELEASE outer"
+
+fkey2-2-test 50 0 "SAVEPOINT outer"
+fkey2-2-test 51 1   "INSERT INTO leaf VALUES('f', 4)"
+fkey2-2-test 52 1   "SAVEPOINT inner"
+fkey2-2-test 53 1     "INSERT INTO leaf VALUES('g', 4)"
+fkey2-2-test 54 1  "RELEASE outer"   FKV
+fkey2-2-test 55 1   "ROLLBACK TO inner"
+fkey2-2-test 56 0  "COMMIT"          FKV
+fkey2-2-test 57 0   "INSERT INTO node VALUES(4, NULL)"
+fkey2-2-test 58 0 "RELEASE outer"
+fkey2-2-test 59 0 "SELECT * FROM node" {2 {} 3 2 4 {}}
+fkey2-2-test 60 0 "SELECT * FROM leaf" {a 2 d 3 e 3 f 4}
+
+# The following set of tests check that if a statement that affects 
+# multiple rows violates some foreign key constraints, then strikes a 
+# constraint that causes the statement-transaction to be rolled back, 
+# the deferred constraint counter is correctly reset to the value it 
+# had before the statement-transaction was opened.
+#
+fkey2-2-test 61 0 "BEGIN"
+fkey2-2-test 62 0   "DELETE FROM leaf"
+fkey2-2-test 63 0   "DELETE FROM node"
+fkey2-2-test 64 1   "INSERT INTO leaf VALUES('a', 1)"
+fkey2-2-test 65 1   "INSERT INTO leaf VALUES('b', 2)"
+fkey2-2-test 66 1   "INSERT INTO leaf VALUES('c', 1)"
+do_test fkey2-2-test-67 {
+  catchsql          "INSERT INTO node SELECT parent, 3 FROM leaf"
+} {1 {UNIQUE constraint failed: node.nodeid}}
+fkey2-2-test 68 0 "COMMIT"           FKV
+fkey2-2-test 69 1   "INSERT INTO node VALUES(1, NULL)"
+fkey2-2-test 70 0   "INSERT INTO node VALUES(2, NULL)"
+fkey2-2-test 71 0 "COMMIT"
+
+fkey2-2-test 72 0 "BEGIN"
+fkey2-2-test 73 1   "DELETE FROM node"
+fkey2-2-test 74 0   "INSERT INTO node(nodeid) SELECT DISTINCT parent FROM leaf"
+fkey2-2-test 75 0 "COMMIT"
+
+#-------------------------------------------------------------------------
+# Test cases fkey2-3.* test that a program that executes foreign key
+# actions (CASCADE, SET DEFAULT, SET NULL etc.) or tests FK constraints
+# opens a statement transaction if required.
+#
+# fkey2-3.1.*: Test UPDATE statements.
+# fkey2-3.2.*: Test DELETE statements.
+#
+drop_all_tables
+do_test fkey2-3.1.1 {
+  execsql {
+    CREATE TABLE ab(a PRIMARY KEY, b);
+    CREATE TABLE cd(
+      c PRIMARY KEY REFERENCES ab ON UPDATE CASCADE ON DELETE CASCADE, 
+      d
+    );
+    CREATE TABLE ef(
+      e REFERENCES cd ON UPDATE CASCADE, 
+      f, CHECK (e!=5)
+    );
+  }
+} {}
+do_test fkey2-3.1.2 {
+  execsql {
+    INSERT INTO ab VALUES(1, 'b');
+    INSERT INTO cd VALUES(1, 'd');
+    INSERT INTO ef VALUES(1, 'e');
+  }
+} {}
+do_test fkey2-3.1.3 {
+  catchsql { UPDATE ab SET a = 5 }
+} {1 {CHECK constraint failed: e!=5}}
+do_test fkey2-3.1.4 {
+  execsql { SELECT * FROM ab }
+} {1 b}
+do_test fkey2-3.1.4 {
+  execsql BEGIN;
+  catchsql { UPDATE ab SET a = 5 }
+} {1 {CHECK constraint failed: e!=5}}
+do_test fkey2-3.1.5 {
+  execsql COMMIT;
+  execsql { SELECT * FROM ab; SELECT * FROM cd; SELECT * FROM ef }
+} {1 b 1 d 1 e}
+
+do_test fkey2-3.2.1 {
+  execsql BEGIN;
+  catchsql { DELETE FROM ab }
+} {1 {FOREIGN KEY constraint failed}}
+do_test fkey2-3.2.2 {
+  execsql COMMIT
+  execsql { SELECT * FROM ab; SELECT * FROM cd; SELECT * FROM ef }
+} {1 b 1 d 1 e}
+
+#-------------------------------------------------------------------------
+# Test cases fkey2-4.* test that recursive foreign key actions 
+# (i.e. CASCADE) are allowed even if recursive triggers are disabled.
+#
+drop_all_tables
+do_test fkey2-4.1 {
+  execsql {
+    CREATE TABLE t1(
+      node PRIMARY KEY, 
+      parent REFERENCES t1 ON DELETE CASCADE
+    );
+    CREATE TABLE t2(node PRIMARY KEY, parent);
+    CREATE TRIGGER t2t AFTER DELETE ON t2 BEGIN
+      DELETE FROM t2 WHERE parent = old.node;
+    END;
+    INSERT INTO t1 VALUES(1, NULL);
+    INSERT INTO t1 VALUES(2, 1);
+    INSERT INTO t1 VALUES(3, 1);
+    INSERT INTO t1 VALUES(4, 2);
+    INSERT INTO t1 VALUES(5, 2);
+    INSERT INTO t1 VALUES(6, 3);
+    INSERT INTO t1 VALUES(7, 3);
+    INSERT INTO t2 SELECT * FROM t1;
+  }
+} {}
+do_test fkey2-4.2 {
+  execsql { PRAGMA recursive_triggers = off }
+  execsql { 
+    BEGIN;
+      DELETE FROM t1 WHERE node = 1;
+      SELECT node FROM t1;
+  }
+} {}
+do_test fkey2-4.3 {
+  execsql { 
+      DELETE FROM t2 WHERE node = 1;
+      SELECT node FROM t2;
+    ROLLBACK;
+  }
+} {4 5 6 7}
+do_test fkey2-4.4 {
+  execsql { PRAGMA recursive_triggers = on }
+  execsql { 
+    BEGIN;
+      DELETE FROM t1 WHERE node = 1;
+      SELECT node FROM t1;
+  }
+} {}
+do_test fkey2-4.3 {
+  execsql { 
+      DELETE FROM t2 WHERE node = 1;
+      SELECT node FROM t2;
+    ROLLBACK;
+  }
+} {}
+
+#-------------------------------------------------------------------------
+# Test cases fkey2-5.* verify that the incremental blob API may not
+# write to a foreign key column while foreign-keys are enabled.
+#
+drop_all_tables
+ifcapable incrblob {
+  do_test fkey2-5.1 {
+    execsql {
+      CREATE TABLE t1(a PRIMARY KEY, b);
+      CREATE TABLE t2(a PRIMARY KEY, b REFERENCES t1(a));
+      INSERT INTO t1 VALUES('hello', 'world');
+      INSERT INTO t2 VALUES('key', 'hello');
+    }
+  } {}
+  do_test fkey2-5.2 {
+    set rc [catch { set fd [db incrblob t2 b 1] } msg]
+    list $rc $msg
+  } {1 {cannot open foreign key column for writing}}
+  do_test fkey2-5.3 {
+    set rc [catch { set fd [db incrblob -readonly t2 b 1] } msg]
+    close $fd
+    set rc
+  } {0}
+  do_test fkey2-5.4 {
+    execsql { PRAGMA foreign_keys = off }
+    set rc [catch { set fd [db incrblob t2 b 1] } msg]
+    close $fd
+    set rc
+  } {0}
+  do_test fkey2-5.5 {
+    execsql { PRAGMA foreign_keys = on }
+  } {}
+}
+
+drop_all_tables
+ifcapable vacuum {
+  do_test fkey2-6.1 {
+    execsql {
+      CREATE TABLE t1(a REFERENCES t2(c), b);
+      CREATE TABLE t2(c UNIQUE, b);
+      INSERT INTO t2 VALUES(1, 2);
+      INSERT INTO t1 VALUES(1, 2);
+      VACUUM;
+    }
+  } {}
+}
+
+#-------------------------------------------------------------------------
+# Test that it is possible to use an INTEGER PRIMARY KEY as the child key
+# of a foreign constraint.
+# 
+drop_all_tables
+do_test fkey2-7.1 {
+  execsql {
+    CREATE TABLE t1(a PRIMARY KEY, b);
+    CREATE TABLE t2(c INTEGER PRIMARY KEY REFERENCES t1, b);
+  }
+} {}
+do_test fkey2-7.2 {
+  catchsql { INSERT INTO t2 VALUES(1, 'A'); }
+} {1 {FOREIGN KEY constraint failed}}
+do_test fkey2-7.3 {
+  execsql { 
+    INSERT INTO t1 VALUES(1, 2);
+    INSERT INTO t1 VALUES(2, 3);
+    INSERT INTO t2 VALUES(1, 'A');
+  }
+} {}
+do_test fkey2-7.4 {
+  execsql { UPDATE t2 SET c = 2 }
+} {}
+do_test fkey2-7.5 {
+  catchsql { UPDATE t2 SET c = 3 }
+} {1 {FOREIGN KEY constraint failed}}
+do_test fkey2-7.6 {
+  catchsql { DELETE FROM t1 WHERE a = 2 }
+} {1 {FOREIGN KEY constraint failed}}
+do_test fkey2-7.7 {
+  execsql { DELETE FROM t1 WHERE a = 1 }
+} {}
+do_test fkey2-7.8 {
+  catchsql { UPDATE t1 SET a = 3 }
+} {1 {FOREIGN KEY constraint failed}}
+do_test fkey2-7.9 {
+  catchsql { UPDATE t2 SET rowid = 3 }
+} {1 {FOREIGN KEY constraint failed}}
+
+#-------------------------------------------------------------------------
+# Test that it is not possible to enable/disable FK support while a
+# transaction is open.
+# 
+drop_all_tables
+proc fkey2-8-test {tn zSql value} {
+  do_test fkey-2.8.$tn.1 [list execsql $zSql] {}
+  do_test fkey-2.8.$tn.2 { execsql "PRAGMA foreign_keys" } $value
+}
+fkey2-8-test  1 { PRAGMA foreign_keys = 0     } 0
+fkey2-8-test  2 { PRAGMA foreign_keys = 1     } 1
+fkey2-8-test  3 { BEGIN                       } 1
+fkey2-8-test  4 { PRAGMA foreign_keys = 0     } 1
+fkey2-8-test  5 { COMMIT                      } 1
+fkey2-8-test  6 { PRAGMA foreign_keys = 0     } 0
+fkey2-8-test  7 { BEGIN                       } 0
+fkey2-8-test  8 { PRAGMA foreign_keys = 1     } 0
+fkey2-8-test  9 { COMMIT                      } 0
+fkey2-8-test 10 { PRAGMA foreign_keys = 1     } 1
+fkey2-8-test 11 { PRAGMA foreign_keys = off   } 0
+fkey2-8-test 12 { PRAGMA foreign_keys = on    } 1
+fkey2-8-test 13 { PRAGMA foreign_keys = no    } 0
+fkey2-8-test 14 { PRAGMA foreign_keys = yes   } 1
+fkey2-8-test 15 { PRAGMA foreign_keys = false } 0
+fkey2-8-test 16 { PRAGMA foreign_keys = true  } 1
+
+#-------------------------------------------------------------------------
+# The following tests, fkey2-9.*, test SET DEFAULT actions.
+#
+drop_all_tables
+do_test fkey2-9.1.1 {
+  execsql {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+    CREATE TABLE t2(
+      c INTEGER PRIMARY KEY,
+      d INTEGER DEFAULT 1 REFERENCES t1 ON DELETE SET DEFAULT
+    );
+    DELETE FROM t1;
+  }
+} {}
+do_test fkey2-9.1.2 {
+  execsql {
+    INSERT INTO t1 VALUES(1, 'one');
+    INSERT INTO t1 VALUES(2, 'two');
+    INSERT INTO t2 VALUES(1, 2);
+    SELECT * FROM t2;
+    DELETE FROM t1 WHERE a = 2;
+    SELECT * FROM t2;
+  }
+} {1 2 1 1}
+do_test fkey2-9.1.3 {
+  execsql {
+    INSERT INTO t1 VALUES(2, 'two');
+    UPDATE t2 SET d = 2;
+    DELETE FROM t1 WHERE a = 1;
+    SELECT * FROM t2;
+  }
+} {1 2}
+do_test fkey2-9.1.4 {
+  execsql { SELECT * FROM t1 }
+} {2 two}
+do_test fkey2-9.1.5 {
+  catchsql { DELETE FROM t1 }
+} {1 {FOREIGN KEY constraint failed}}
+
+do_test fkey2-9.2.1 {
+  execsql {
+    CREATE TABLE pp(a, b, c, PRIMARY KEY(b, c));
+    CREATE TABLE cc(d DEFAULT 3, e DEFAULT 1, f DEFAULT 2,
+        FOREIGN KEY(f, d) REFERENCES pp 
+        ON UPDATE SET DEFAULT 
+        ON DELETE SET NULL
+    );
+    INSERT INTO pp VALUES(1, 2, 3);
+    INSERT INTO pp VALUES(4, 5, 6);
+    INSERT INTO pp VALUES(7, 8, 9);
+  }
+} {}
+do_test fkey2-9.2.2 {
+  execsql {
+    INSERT INTO cc VALUES(6, 'A', 5);
+    INSERT INTO cc VALUES(6, 'B', 5);
+    INSERT INTO cc VALUES(9, 'A', 8);
+    INSERT INTO cc VALUES(9, 'B', 8);
+    UPDATE pp SET b = 1 WHERE a = 7;
+    SELECT * FROM cc;
+  }
+} {6 A 5 6 B 5 3 A 2 3 B 2}
+do_test fkey2-9.2.3 {
+  execsql {
+    DELETE FROM pp WHERE a = 4;
+    SELECT * FROM cc;
+  }
+} {{} A {} {} B {} 3 A 2 3 B 2}
+do_execsql_test fkey2-9.3.0 {
+  CREATE TABLE t3(x PRIMARY KEY REFERENCES t3 ON DELETE SET NULL);
+  INSERT INTO t3(x) VALUES(12345);
+  DROP TABLE t3;
+} {}
+
+#-------------------------------------------------------------------------
+# The following tests, fkey2-10.*, test "foreign key mismatch" and 
+# other errors.
+#
+set tn 0
+foreach zSql [list {
+  CREATE TABLE p(a PRIMARY KEY, b);
+  CREATE TABLE c(x REFERENCES p(c));
+} {
+  CREATE TABLE c(x REFERENCES v(y));
+  CREATE VIEW v AS SELECT x AS y FROM c;
+} {
+  CREATE TABLE p(a, b, PRIMARY KEY(a, b));
+  CREATE TABLE c(x REFERENCES p);
+} {
+  CREATE TABLE p(a COLLATE binary, b);
+  CREATE UNIQUE INDEX i ON p(a COLLATE nocase);
+  CREATE TABLE c(x REFERENCES p(a));
+}] {
+  drop_all_tables
+  do_test fkey2-10.1.[incr tn] {
+    execsql $zSql
+    catchsql { INSERT INTO c DEFAULT VALUES }
+  } {/1 {foreign key mismatch - "c" referencing "."}/}
+}
+
+# "rowid" cannot be used as part of a child or parent key definition 
+# unless it happens to be the name of an explicitly declared column.
+#
+do_test fkey2-10.2.1 {
+  drop_all_tables
+  catchsql {
+    CREATE TABLE t1(a PRIMARY KEY, b);
+    CREATE TABLE t2(c, d, FOREIGN KEY(rowid) REFERENCES t1(a));
+  }
+} {1 {unknown column "rowid" in foreign key definition}}
+do_test fkey2-10.2.2 {
+  drop_all_tables
+  catchsql {
+    CREATE TABLE t1(a PRIMARY KEY, b);
+    CREATE TABLE t2(rowid, d, FOREIGN KEY(rowid) REFERENCES t1(a));
+  }
+} {0 {}}
+do_test fkey2-10.2.1 {
+  drop_all_tables
+  catchsql {
+    CREATE TABLE t1(a, b);
+    CREATE TABLE t2(c, d, FOREIGN KEY(c) REFERENCES t1(rowid));
+    INSERT INTO t1(rowid, a, b) VALUES(1, 1, 1);
+    INSERT INTO t2 VALUES(1, 1);
+  }
+} {1 {foreign key mismatch - "t2" referencing "t1"}}
+do_test fkey2-10.2.2 {
+  drop_all_tables
+  catchsql {
+    CREATE TABLE t1(rowid PRIMARY KEY, b);
+    CREATE TABLE t2(c, d, FOREIGN KEY(c) REFERENCES t1(rowid));
+    INSERT INTO t1(rowid, b) VALUES(1, 1);
+    INSERT INTO t2 VALUES(1, 1);
+  }
+} {0 {}}
+
+
+#-------------------------------------------------------------------------
+# The following tests, fkey2-11.*, test CASCADE actions.
+#
+drop_all_tables
+do_test fkey2-11.1.1 {
+  execsql {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b, rowid, _rowid_, oid);
+    CREATE TABLE t2(c, d, FOREIGN KEY(c) REFERENCES t1(a) ON UPDATE CASCADE);
+
+    INSERT INTO t1 VALUES(10, 100, 'abc', 'def', 'ghi');
+    INSERT INTO t2 VALUES(10, 100);
+    UPDATE t1 SET a = 15;
+    SELECT * FROM t2;
+  }
+} {15 100}
+
+#-------------------------------------------------------------------------
+# The following tests, fkey2-12.*, test RESTRICT actions.
+#
+drop_all_tables
+do_test fkey2-12.1.1 {
+  execsql {
+    CREATE TABLE t1(a, b PRIMARY KEY);
+    CREATE TABLE t2(
+      x REFERENCES t1 ON UPDATE RESTRICT DEFERRABLE INITIALLY DEFERRED 
+    );
+    INSERT INTO t1 VALUES(1, 'one');
+    INSERT INTO t1 VALUES(2, 'two');
+    INSERT INTO t1 VALUES(3, 'three');
+  }
+} {}
+do_test fkey2-12.1.2 { 
+  execsql "BEGIN"
+  execsql "INSERT INTO t2 VALUES('two')"
+} {}
+do_test fkey2-12.1.3 { 
+  execsql "UPDATE t1 SET b = 'four' WHERE b = 'one'"
+} {}
+do_test fkey2-12.1.4 { 
+  catchsql "UPDATE t1 SET b = 'five' WHERE b = 'two'"
+} {1 {FOREIGN KEY constraint failed}}
+do_test fkey2-12.1.5 { 
+  execsql "DELETE FROM t1 WHERE b = 'two'"
+} {}
+do_test fkey2-12.1.6 { 
+  catchsql "COMMIT"
+} {1 {FOREIGN KEY constraint failed}}
+do_test fkey2-12.1.7 { 
+  execsql {
+    INSERT INTO t1 VALUES(2, 'two');
+    COMMIT;
+  }
+} {}
+
+drop_all_tables
+do_test fkey2-12.2.1 {
+  execsql {
+    CREATE TABLE t1(x COLLATE NOCASE PRIMARY KEY);
+    CREATE TRIGGER tt1 AFTER DELETE ON t1 
+      WHEN EXISTS ( SELECT 1 FROM t2 WHERE old.x = y )
+    BEGIN
+      INSERT INTO t1 VALUES(old.x);
+    END;
+    CREATE TABLE t2(y REFERENCES t1);
+    INSERT INTO t1 VALUES('A');
+    INSERT INTO t1 VALUES('B');
+    INSERT INTO t2 VALUES('a');
+    INSERT INTO t2 VALUES('b');
+
+    SELECT * FROM t1;
+    SELECT * FROM t2;
+  }
+} {A B a b}
+do_test fkey2-12.2.2 {
+  execsql { DELETE FROM t1 }
+  execsql {
+    SELECT * FROM t1;
+    SELECT * FROM t2;
+  }
+} {A B a b}
+do_test fkey2-12.2.3 {
+  execsql {
+    DROP TABLE t2;
+    CREATE TABLE t2(y REFERENCES t1 ON DELETE RESTRICT);
+    INSERT INTO t2 VALUES('a');
+    INSERT INTO t2 VALUES('b');
+  }
+  catchsql { DELETE FROM t1 }
+} {1 {FOREIGN KEY constraint failed}}
+do_test fkey2-12.2.4 {
+  execsql {
+    SELECT * FROM t1;
+    SELECT * FROM t2;
+  }
+} {A B a b}
+
+drop_all_tables
+do_test fkey2-12.3.1 {
+  execsql {
+    CREATE TABLE up(
+      c00, c01, c02, c03, c04, c05, c06, c07, c08, c09,
+      c10, c11, c12, c13, c14, c15, c16, c17, c18, c19,
+      c20, c21, c22, c23, c24, c25, c26, c27, c28, c29,
+      c30, c31, c32, c33, c34, c35, c36, c37, c38, c39,
+      PRIMARY KEY(c34, c35)
+    );
+    CREATE TABLE down(
+      c00, c01, c02, c03, c04, c05, c06, c07, c08, c09,
+      c10, c11, c12, c13, c14, c15, c16, c17, c18, c19,
+      c20, c21, c22, c23, c24, c25, c26, c27, c28, c29,
+      c30, c31, c32, c33, c34, c35, c36, c37, c38, c39,
+      FOREIGN KEY(c39, c38) REFERENCES up ON UPDATE CASCADE
+    );
+  }
+} {}
+do_test fkey2-12.3.2 {
+  execsql {
+    INSERT INTO up(c34, c35) VALUES('yes', 'no');
+    INSERT INTO down(c39, c38) VALUES('yes', 'no');
+    UPDATE up SET c34 = 'possibly';
+    SELECT c38, c39 FROM down;
+    DELETE FROM down;
+  }
+} {no possibly}
+do_test fkey2-12.3.3 {
+  catchsql { INSERT INTO down(c39, c38) VALUES('yes', 'no') }
+} {1 {FOREIGN KEY constraint failed}}
+do_test fkey2-12.3.4 {
+  execsql { 
+    INSERT INTO up(c34, c35) VALUES('yes', 'no');
+    INSERT INTO down(c39, c38) VALUES('yes', 'no');
+  }
+  catchsql { DELETE FROM up WHERE c34 = 'yes' }
+} {1 {FOREIGN KEY constraint failed}}
+do_test fkey2-12.3.5 {
+  execsql { 
+    DELETE FROM up WHERE c34 = 'possibly';
+    SELECT c34, c35 FROM up;
+    SELECT c39, c38 FROM down;
+  }
+} {yes no yes no}
+
+#-------------------------------------------------------------------------
+# The following tests, fkey2-13.*, test that FK processing is performed
+# when rows are REPLACEd.
+#
+drop_all_tables
+do_test fkey2-13.1.1 {
+  execsql {
+    CREATE TABLE pp(a UNIQUE, b, c, PRIMARY KEY(b, c));
+    CREATE TABLE cc(d, e, f UNIQUE, FOREIGN KEY(d, e) REFERENCES pp);
+    INSERT INTO pp VALUES(1, 2, 3);
+    INSERT INTO cc VALUES(2, 3, 1);
+  }
+} {}
+foreach {tn stmt} {
+  1   "REPLACE INTO pp VALUES(1, 4, 5)"
+  2   "REPLACE INTO pp(rowid, a, b, c) VALUES(1, 2, 3, 4)"
+} {
+  do_test fkey2-13.1.$tn.1 {
+    catchsql $stmt
+  } {1 {FOREIGN KEY constraint failed}}
+  do_test fkey2-13.1.$tn.2 {
+    execsql {
+      SELECT * FROM pp;
+      SELECT * FROM cc;
+    }
+  } {1 2 3 2 3 1}
+  do_test fkey2-13.1.$tn.3 {
+    execsql BEGIN;
+    catchsql $stmt
+  } {1 {FOREIGN KEY constraint failed}}
+  do_test fkey2-13.1.$tn.4 {
+    execsql {
+      COMMIT;
+      SELECT * FROM pp;
+      SELECT * FROM cc;
+    }
+  } {1 2 3 2 3 1}
+}
+do_test fkey2-13.1.3 {
+  execsql { 
+    REPLACE INTO pp(rowid, a, b, c) VALUES(1, 2, 2, 3);
+    SELECT rowid, * FROM pp;
+    SELECT * FROM cc;
+  }
+} {1 2 2 3 2 3 1}
+do_test fkey2-13.1.4 {
+  execsql { 
+    REPLACE INTO pp(rowid, a, b, c) VALUES(2, 2, 2, 3);
+    SELECT rowid, * FROM pp;
+    SELECT * FROM cc;
+  }
+} {2 2 2 3 2 3 1}
+
+#-------------------------------------------------------------------------
+# The following tests, fkey2-14.*, test that the "DROP TABLE" and "ALTER
+# TABLE" commands work as expected wrt foreign key constraints.
+#
+# fkey2-14.1*: ALTER TABLE ADD COLUMN
+# fkey2-14.2*: ALTER TABLE RENAME TABLE
+# fkey2-14.3*: DROP TABLE
+#
+drop_all_tables
+ifcapable altertable {
+  do_test fkey2-14.1.1 {
+    # Adding a column with a REFERENCES clause is not supported.
+    execsql { 
+      CREATE TABLE t1(a PRIMARY KEY);
+      CREATE TABLE t2(a, b);
+      INSERT INTO t2 VALUES(1,2);
+    }
+    catchsql { ALTER TABLE t2 ADD COLUMN c REFERENCES t1 }
+  } {0 {}}
+  do_test fkey2-14.1.2 {
+    catchsql { ALTER TABLE t2 ADD COLUMN d DEFAULT NULL REFERENCES t1 }
+  } {0 {}}
+  do_test fkey2-14.1.3 {
+    catchsql { ALTER TABLE t2 ADD COLUMN e REFERENCES t1 DEFAULT NULL}
+  } {0 {}}
+  do_test fkey2-14.1.4 {
+    catchsql { ALTER TABLE t2 ADD COLUMN f REFERENCES t1 DEFAULT 'text'}
+  } {1 {Cannot add a REFERENCES column with non-NULL default value}}
+  do_test fkey2-14.1.5 {
+    catchsql { ALTER TABLE t2 ADD COLUMN g DEFAULT CURRENT_TIME REFERENCES t1 }
+  } {1 {Cannot add a REFERENCES column with non-NULL default value}}
+  do_test fkey2-14.1.6 {
+    execsql { 
+      PRAGMA foreign_keys = off;
+      ALTER TABLE t2 ADD COLUMN h DEFAULT 'text' REFERENCES t1;
+      PRAGMA foreign_keys = on;
+      SELECT sql FROM sqlite_master WHERE name='t2';
+    }
+  } {{CREATE TABLE t2(a, b, c REFERENCES t1, d DEFAULT NULL REFERENCES t1, e REFERENCES t1 DEFAULT NULL, h DEFAULT 'text' REFERENCES t1)}}
+  
+  
+  # Test the sqlite_rename_parent() function directly.
+  #
+  proc test_rename_parent {zCreate zOld zNew} {
+    db eval {SELECT sqlite_rename_table(
+        'main', 'table', 't1', $zCreate, $zOld, $zNew, 0
+    )}
+  }
+  sqlite3_test_control SQLITE_TESTCTRL_INTERNAL_FUNCTIONS db
+  do_test fkey2-14.2.1.1 {
+    test_rename_parent {CREATE TABLE t1(a REFERENCES t2)} t2 t3
+  } {{CREATE TABLE t1(a REFERENCES "t3")}}
+  do_test fkey2-14.2.1.2 {
+    test_rename_parent {CREATE TABLE t1(a REFERENCES t2)} t4 t3
+  } {{CREATE TABLE t1(a REFERENCES t2)}}
+  do_test fkey2-14.2.1.3 {
+    test_rename_parent {CREATE TABLE t1(a REFERENCES "t2")} t2 t3
+  } {{CREATE TABLE t1(a REFERENCES "t3")}}
+  sqlite3_test_control SQLITE_TESTCTRL_INTERNAL_FUNCTIONS db
+  
+  # Test ALTER TABLE RENAME TABLE a bit.
+  #
+  do_test fkey2-14.2.2.1 {
+    drop_all_tables
+    execsql {
+      CREATE TABLE t1(a PRIMARY KEY, b REFERENCES t1);
+      CREATE TABLE t2(a PRIMARY KEY, b REFERENCES t1, c REFERENCES t2);
+      CREATE TABLE t3(a REFERENCES t1, b REFERENCES t2, c REFERENCES t1);
+    }
+    execsql { SELECT sql FROM sqlite_master WHERE type = 'table'}
+  } [list \
+    {CREATE TABLE t1(a PRIMARY KEY, b REFERENCES t1)}                     \
+    {CREATE TABLE t2(a PRIMARY KEY, b REFERENCES t1, c REFERENCES t2)}    \
+    {CREATE TABLE t3(a REFERENCES t1, b REFERENCES t2, c REFERENCES t1)}  \
+  ]
+  do_test fkey2-14.2.2.2 {
+    execsql { ALTER TABLE t1 RENAME TO t4 }
+    execsql { SELECT sql FROM sqlite_master WHERE type = 'table'}
+  } [list \
+    {CREATE TABLE "t4"(a PRIMARY KEY, b REFERENCES "t4")}                    \
+    {CREATE TABLE t2(a PRIMARY KEY, b REFERENCES "t4", c REFERENCES t2)}     \
+    {CREATE TABLE t3(a REFERENCES "t4", b REFERENCES t2, c REFERENCES "t4")} \
+  ]
+  do_test fkey2-14.2.2.3 {
+    catchsql { INSERT INTO t3 VALUES(1, 2, 3) }
+  } {1 {FOREIGN KEY constraint failed}}
+  do_test fkey2-14.2.2.4 {
+    execsql { INSERT INTO t4 VALUES(1, NULL) }
+  } {}
+  do_test fkey2-14.2.2.5 {
+    catchsql { UPDATE t4 SET b = 5 }
+  } {1 {FOREIGN KEY constraint failed}}
+  do_test fkey2-14.2.2.6 {
+    catchsql { UPDATE t4 SET b = 1 }
+  } {0 {}}
+  do_test fkey2-14.2.2.7 {
+    execsql { INSERT INTO t3 VALUES(1, NULL, 1) }
+  } {}
+
+  # Repeat for TEMP tables
+  #
+  drop_all_tables
+  do_test fkey2-14.1tmp.1 {
+    # Adding a column with a REFERENCES clause is not supported.
+    execsql { 
+      CREATE TEMP TABLE t1(a PRIMARY KEY);
+      CREATE TEMP TABLE t2(a, b);
+      INSERT INTO temp.t2 VALUES(1,2);
+    }
+    catchsql { ALTER TABLE t2 ADD COLUMN c REFERENCES t1 }
+  } {0 {}}
+  do_test fkey2-14.1tmp.2 {
+    catchsql { ALTER TABLE t2 ADD COLUMN d DEFAULT NULL REFERENCES t1 }
+  } {0 {}}
+  do_test fkey2-14.1tmp.3 {
+    catchsql { ALTER TABLE t2 ADD COLUMN e REFERENCES t1 DEFAULT NULL}
+  } {0 {}}
+  do_test fkey2-14.1tmp.4 {
+    catchsql { ALTER TABLE t2 ADD COLUMN f REFERENCES t1 DEFAULT 'text'}
+  } {1 {Cannot add a REFERENCES column with non-NULL default value}}
+  do_test fkey2-14.1tmp.5 {
+    catchsql { ALTER TABLE t2 ADD COLUMN g DEFAULT CURRENT_TIME REFERENCES t1 }
+  } {1 {Cannot add a REFERENCES column with non-NULL default value}}
+  do_test fkey2-14.1tmp.6 {
+    execsql { 
+      PRAGMA foreign_keys = off;
+      ALTER TABLE t2 ADD COLUMN h DEFAULT 'text' REFERENCES t1;
+      PRAGMA foreign_keys = on;
+      SELECT sql FROM temp.sqlite_master WHERE name='t2';
+    }
+  } {{CREATE TABLE t2(a, b, c REFERENCES t1, d DEFAULT NULL REFERENCES t1, e REFERENCES t1 DEFAULT NULL, h DEFAULT 'text' REFERENCES t1)}}
+
+  sqlite3_test_control SQLITE_TESTCTRL_INTERNAL_FUNCTIONS db
+  do_test fkey2-14.2tmp.1.1 {
+    test_rename_parent {CREATE TABLE t1(a REFERENCES t2)} t2 t3
+  } {{CREATE TABLE t1(a REFERENCES "t3")}}
+  do_test fkey2-14.2tmp.1.2 {
+    test_rename_parent {CREATE TABLE t1(a REFERENCES t2)} t4 t3
+  } {{CREATE TABLE t1(a REFERENCES t2)}}
+  do_test fkey2-14.2tmp.1.3 {
+    test_rename_parent {CREATE TABLE t1(a REFERENCES "t2")} t2 t3
+  } {{CREATE TABLE t1(a REFERENCES "t3")}}
+  sqlite3_test_control SQLITE_TESTCTRL_INTERNAL_FUNCTIONS db
+  
+  # Test ALTER TABLE RENAME TABLE a bit.
+  #
+  do_test fkey2-14.2tmp.2.1 {
+    drop_all_tables
+    execsql {
+      CREATE TEMP TABLE t1(a PRIMARY KEY, b REFERENCES t1);
+      CREATE TEMP TABLE t2(a PRIMARY KEY, b REFERENCES t1, c REFERENCES t2);
+      CREATE TEMP TABLE t3(a REFERENCES t1, b REFERENCES t2, c REFERENCES t1);
+    }
+    execsql { SELECT sql FROM sqlite_temp_master WHERE type = 'table'}
+  } [list \
+    {CREATE TABLE t1(a PRIMARY KEY, b REFERENCES t1)}                     \
+    {CREATE TABLE t2(a PRIMARY KEY, b REFERENCES t1, c REFERENCES t2)}    \
+    {CREATE TABLE t3(a REFERENCES t1, b REFERENCES t2, c REFERENCES t1)}  \
+  ]
+  do_test fkey2-14.2tmp.2.2 {
+    execsql { ALTER TABLE t1 RENAME TO t4 }
+    execsql { SELECT sql FROM temp.sqlite_master WHERE type = 'table'}
+  } [list \
+    {CREATE TABLE "t4"(a PRIMARY KEY, b REFERENCES "t4")}                    \
+    {CREATE TABLE t2(a PRIMARY KEY, b REFERENCES "t4", c REFERENCES t2)}     \
+    {CREATE TABLE t3(a REFERENCES "t4", b REFERENCES t2, c REFERENCES "t4")} \
+  ]
+  do_test fkey2-14.2tmp.2.3 {
+    catchsql { INSERT INTO t3 VALUES(1, 2, 3) }
+  } {1 {FOREIGN KEY constraint failed}}
+  do_test fkey2-14.2tmp.2.4 {
+    execsql { INSERT INTO t4 VALUES(1, NULL) }
+  } {}
+  do_test fkey2-14.2tmp.2.5 {
+    catchsql { UPDATE t4 SET b = 5 }
+  } {1 {FOREIGN KEY constraint failed}}
+  do_test fkey2-14.2tmp.2.6 {
+    catchsql { UPDATE t4 SET b = 1 }
+  } {0 {}}
+  do_test fkey2-14.2tmp.2.7 {
+    execsql { INSERT INTO t3 VALUES(1, NULL, 1) }
+  } {}
+
+  # Repeat for ATTACH-ed tables
+  #
+  drop_all_tables
+  do_test fkey2-14.1aux.1 {
+    # Adding a column with a REFERENCES clause is not supported.
+    execsql { 
+      ATTACH ':memory:' AS aux;
+      CREATE TABLE aux.t1(a PRIMARY KEY);
+      CREATE TABLE aux.t2(a, b);
+      INSERT INTO aux.t2(a,b) VALUES(1,2);
+    }
+    catchsql { ALTER TABLE t2 ADD COLUMN c REFERENCES t1 }
+  } {0 {}}
+  do_test fkey2-14.1aux.2 {
+    catchsql { ALTER TABLE t2 ADD COLUMN d DEFAULT NULL REFERENCES t1 }
+  } {0 {}}
+  do_test fkey2-14.1aux.3 {
+    catchsql { ALTER TABLE t2 ADD COLUMN e REFERENCES t1 DEFAULT NULL}
+  } {0 {}}
+  do_test fkey2-14.1aux.4 {
+    catchsql { ALTER TABLE t2 ADD COLUMN f REFERENCES t1 DEFAULT 'text'}
+  } {1 {Cannot add a REFERENCES column with non-NULL default value}}
+  do_test fkey2-14.1aux.5 {
+    catchsql { ALTER TABLE t2 ADD COLUMN g DEFAULT CURRENT_TIME REFERENCES t1 }
+  } {1 {Cannot add a REFERENCES column with non-NULL default value}}
+  do_test fkey2-14.1aux.6 {
+    execsql { 
+      PRAGMA foreign_keys = off;
+      ALTER TABLE t2 ADD COLUMN h DEFAULT 'text' REFERENCES t1;
+      PRAGMA foreign_keys = on;
+      SELECT sql FROM aux.sqlite_master WHERE name='t2';
+    }
+  } {{CREATE TABLE t2(a, b, c REFERENCES t1, d DEFAULT NULL REFERENCES t1, e REFERENCES t1 DEFAULT NULL, h DEFAULT 'text' REFERENCES t1)}}
+
+  sqlite3_test_control SQLITE_TESTCTRL_INTERNAL_FUNCTIONS db
+  do_test fkey2-14.2aux.1.1 {
+    test_rename_parent {CREATE TABLE t1(a REFERENCES t2)} t2 t3
+  } {{CREATE TABLE t1(a REFERENCES "t3")}}
+  do_test fkey2-14.2aux.1.2 {
+    test_rename_parent {CREATE TABLE t1(a REFERENCES t2)} t4 t3
+  } {{CREATE TABLE t1(a REFERENCES t2)}}
+  do_test fkey2-14.2aux.1.3 {
+    test_rename_parent {CREATE TABLE t1(a REFERENCES "t2")} t2 t3
+  } {{CREATE TABLE t1(a REFERENCES "t3")}}
+  sqlite3_test_control SQLITE_TESTCTRL_INTERNAL_FUNCTIONS db
+  
+  # Test ALTER TABLE RENAME TABLE a bit.
+  #
+  do_test fkey2-14.2aux.2.1 {
+    drop_all_tables
+    execsql {
+      CREATE TABLE aux.t1(a PRIMARY KEY, b REFERENCES t1);
+      CREATE TABLE aux.t2(a PRIMARY KEY, b REFERENCES t1, c REFERENCES t2);
+      CREATE TABLE aux.t3(a REFERENCES t1, b REFERENCES t2, c REFERENCES t1);
+    }
+    execsql { SELECT sql FROM aux.sqlite_master WHERE type = 'table'}
+  } [list \
+    {CREATE TABLE t1(a PRIMARY KEY, b REFERENCES t1)}                     \
+    {CREATE TABLE t2(a PRIMARY KEY, b REFERENCES t1, c REFERENCES t2)}    \
+    {CREATE TABLE t3(a REFERENCES t1, b REFERENCES t2, c REFERENCES t1)}  \
+  ]
+  do_test fkey2-14.2aux.2.2 {
+    execsql { ALTER TABLE t1 RENAME TO t4 }
+    execsql { SELECT sql FROM aux.sqlite_master WHERE type = 'table'}
+  } [list \
+    {CREATE TABLE "t4"(a PRIMARY KEY, b REFERENCES "t4")}                    \
+    {CREATE TABLE t2(a PRIMARY KEY, b REFERENCES "t4", c REFERENCES t2)}     \
+    {CREATE TABLE t3(a REFERENCES "t4", b REFERENCES t2, c REFERENCES "t4")} \
+  ]
+  do_test fkey2-14.2aux.2.3 {
+    catchsql { INSERT INTO t3 VALUES(1, 2, 3) }
+  } {1 {FOREIGN KEY constraint failed}}
+  do_test fkey2-14.2aux.2.4 {
+    execsql { INSERT INTO t4 VALUES(1, NULL) }
+  } {}
+  do_test fkey2-14.2aux.2.5 {
+    catchsql { UPDATE t4 SET b = 5 }
+  } {1 {FOREIGN KEY constraint failed}}
+  do_test fkey2-14.2aux.2.6 {
+    catchsql { UPDATE t4 SET b = 1 }
+  } {0 {}}
+  do_test fkey2-14.2aux.2.7 {
+    execsql { INSERT INTO t3 VALUES(1, NULL, 1) }
+  } {}
+}
+
+do_test fkey-2.14.3.1 {
+  drop_all_tables
+  execsql {
+    CREATE TABLE t1(a, b REFERENCES nosuchtable);
+    DROP TABLE t1;
+  }
+} {}
+do_test fkey-2.14.3.2 {
+  execsql {
+    CREATE TABLE t1(a PRIMARY KEY, b);
+    INSERT INTO t1 VALUES('a', 1);
+    CREATE TABLE t2(x REFERENCES t1);
+    INSERT INTO t2 VALUES('a');
+  }
+} {}
+do_test fkey-2.14.3.3 {
+  catchsql { DROP TABLE t1 }
+} {1 {FOREIGN KEY constraint failed}}
+do_test fkey-2.14.3.4 {
+  execsql {
+    DELETE FROM t2;
+    DROP TABLE t1;
+  }
+} {}
+do_test fkey-2.14.3.4 {
+  catchsql { INSERT INTO t2 VALUES('x') }
+} {1 {no such table: main.t1}}
+do_test fkey-2.14.3.5 {
+  execsql {
+    CREATE TABLE t1(x PRIMARY KEY);
+    INSERT INTO t1 VALUES('x');
+  }
+  execsql { INSERT INTO t2 VALUES('x') }
+} {}
+do_test fkey-2.14.3.6 {
+  catchsql { DROP TABLE t1 }
+} {1 {FOREIGN KEY constraint failed}}
+do_test fkey-2.14.3.7 {
+  execsql {
+    DROP TABLE t2;
+    DROP TABLE t1;
+  }
+} {}
+do_test fkey-2.14.3.8 {
+  execsql {
+    CREATE TABLE pp(x, y, PRIMARY KEY(x, y));
+    CREATE TABLE cc(a, b, FOREIGN KEY(a, b) REFERENCES pp(x, z));
+  }
+  catchsql { INSERT INTO cc VALUES(1, 2) }
+} {1 {foreign key mismatch - "cc" referencing "pp"}}
+do_test fkey-2.14.3.9 {
+  execsql { DROP TABLE cc }
+} {}
+do_test fkey-2.14.3.10 {
+  execsql {
+    CREATE TABLE cc(a, b, 
+      FOREIGN KEY(a, b) REFERENCES pp DEFERRABLE INITIALLY DEFERRED
+    );
+  }
+  execsql {
+    INSERT INTO pp VALUES('a', 'b');
+    INSERT INTO cc VALUES('a', 'b');
+    BEGIN;
+      DROP TABLE pp;
+      CREATE TABLE pp(a, b, c, PRIMARY KEY(b, c));
+      INSERT INTO pp VALUES(1, 'a', 'b');
+    COMMIT;
+  }
+} {}
+do_test fkey-2.14.3.11 {
+  execsql { 
+    BEGIN;
+      DROP TABLE cc;
+      DROP TABLE pp;
+    COMMIT;
+  }
+} {}
+do_test fkey-2.14.3.12 {
+  execsql {
+    CREATE TABLE b1(a, b);
+    CREATE TABLE b2(a, b REFERENCES b1);
+    DROP TABLE b1;
+  }
+} {}
+do_test fkey-2.14.3.13 {
+  execsql {
+    CREATE TABLE b3(a, b REFERENCES b2 DEFERRABLE INITIALLY DEFERRED);
+    DROP TABLE b2;
+  }
+} {}
+
+# Test that nothing goes wrong when dropping a table that refers to a view.
+# Or dropping a view that an existing FK (incorrectly) refers to. Or either
+# of the above scenarios with a virtual table.
+drop_all_tables
+do_test fkey-2.14.4.1 {
+  execsql {
+    CREATE TABLE t1(x REFERENCES v); 
+    CREATE VIEW v AS SELECT * FROM t1;
+  }
+} {}
+do_test fkey-2.14.4.2 {
+  execsql {
+    DROP VIEW v;
+  }
+} {}
+ifcapable vtab {
+  register_echo_module db
+  do_test fkey-2.14.4.3 {
+    execsql { CREATE VIRTUAL TABLE v USING echo(t1) }
+  } {}
+  do_test fkey-2.14.4.2 {
+    execsql {
+      DROP TABLE v;
+    }
+  } {}
+}
+
+#-------------------------------------------------------------------------
+# The following tests, fkey2-15.*, test that unnecessary FK related scans 
+# and lookups are avoided when the constraint counters are zero.
+#
+drop_all_tables
+proc execsqlS {zSql} {
+  set ::sqlite_search_count 0
+  set ::sqlite_found_count 0
+  set res [uplevel [list execsql $zSql]]
+  concat [expr $::sqlite_found_count + $::sqlite_search_count] $res
+}
+do_test fkey2-15.1.1 {
+  execsql {
+    CREATE TABLE pp(a PRIMARY KEY, b);
+    CREATE TABLE cc(x, y REFERENCES pp DEFERRABLE INITIALLY DEFERRED);
+    INSERT INTO pp VALUES(1, 'one');
+    INSERT INTO pp VALUES(2, 'two');
+    INSERT INTO cc VALUES('neung', 1);
+    INSERT INTO cc VALUES('song', 2);
+  }
+} {}
+do_test fkey2-15.1.2 {
+  execsqlS { INSERT INTO pp VALUES(3, 'three') }
+} {0}
+do_test fkey2-15.1.3 {
+  execsql {
+    BEGIN;
+      INSERT INTO cc VALUES('see', 4);    -- Violates deferred constraint
+  }
+  execsqlS { INSERT INTO pp VALUES(5, 'five') }
+} {2}
+do_test fkey2-15.1.4 {
+  execsql { DELETE FROM cc WHERE x = 'see' }
+  execsqlS { INSERT INTO pp VALUES(6, 'six') }
+} {0}
+do_test fkey2-15.1.5 {
+  execsql COMMIT
+} {}
+do_test fkey2-15.1.6 {
+  execsql BEGIN
+  execsqlS {
+    DELETE FROM cc WHERE x = 'neung';
+    ROLLBACK;
+  }
+} {1}
+do_test fkey2-15.1.7 {
+  execsql { 
+    BEGIN;
+    DELETE FROM pp WHERE a = 2;
+  }
+  execsqlS {
+    DELETE FROM cc WHERE x = 'neung';
+    ROLLBACK;
+  }
+} {2}
+
+#-------------------------------------------------------------------------
+# This next block of tests, fkey2-16.*, test that rows that refer to
+# themselves may be inserted and deleted.
+#
+foreach {tn zSchema} {
+  1 { CREATE TABLE self(a INTEGER PRIMARY KEY, b REFERENCES self(a)) }
+  2 { CREATE TABLE self(a PRIMARY KEY, b REFERENCES self(a)) }
+  3 { CREATE TABLE self(a UNIQUE, b INTEGER PRIMARY KEY REFERENCES self(a)) }
+} {
+  drop_all_tables
+  do_test fkey2-16.1.$tn.1 {
+    execsql $zSchema
+    execsql { INSERT INTO self VALUES(13, 13) }
+  } {}
+  do_test fkey2-16.1.$tn.2 {
+    execsql { UPDATE self SET a = 14, b = 14 }
+  } {}
+
+  do_test fkey2-16.1.$tn.3 {
+    catchsql { UPDATE self SET b = 15 }
+  } {1 {FOREIGN KEY constraint failed}}
+
+  do_test fkey2-16.1.$tn.4 {
+    catchsql { UPDATE self SET a = 15 }
+  } {1 {FOREIGN KEY constraint failed}}
+
+  do_test fkey2-16.1.$tn.5 {
+    catchsql { UPDATE self SET a = 15, b = 16 }
+  } {1 {FOREIGN KEY constraint failed}}
+
+  do_test fkey2-16.1.$tn.6 {
+    catchsql { UPDATE self SET a = 17, b = 17 }
+  } {0 {}}
+
+  do_test fkey2-16.1.$tn.7 {
+    execsql { DELETE FROM self }
+  } {}
+  do_test fkey2-16.1.$tn.8 {
+    catchsql { INSERT INTO self VALUES(20, 21) }
+  } {1 {FOREIGN KEY constraint failed}}
+}
+
+#-------------------------------------------------------------------------
+# This next block of tests, fkey2-17.*, tests that if "PRAGMA count_changes"
+# is turned on statements that violate immediate FK constraints return
+# SQLITE_CONSTRAINT immediately, not after returning a number of rows.
+# Whereas statements that violate deferred FK constraints return the number
+# of rows before failing.
+#
+# Also test that rows modified by FK actions are not counted in either the
+# returned row count or the values returned by sqlite3_changes(). Like
+# trigger related changes, they are included in sqlite3_total_changes() though.
+#
+drop_all_tables
+do_test fkey2-17.1.1 {
+  execsql { PRAGMA count_changes = 1 }
+  execsql { 
+    CREATE TABLE one(a, b, c, UNIQUE(b, c));
+    CREATE TABLE two(d, e, f, FOREIGN KEY(e, f) REFERENCES one(b, c));
+    INSERT INTO one VALUES(1, 2, 3);
+  }
+} {1}
+do_test fkey2-17.1.2 {
+  set STMT [sqlite3_prepare_v2 db "INSERT INTO two VALUES(4, 5, 6)" -1 dummy]
+  sqlite3_step $STMT
+} {SQLITE_CONSTRAINT}
+verify_ex_errcode fkey2-17.1.2b SQLITE_CONSTRAINT_FOREIGNKEY
+ifcapable autoreset {
+  do_test fkey2-17.1.3 {
+    sqlite3_step $STMT
+  } {SQLITE_CONSTRAINT}
+  verify_ex_errcode fkey2-17.1.3b SQLITE_CONSTRAINT_FOREIGNKEY
+} else {
+  do_test fkey2-17.1.3 {
+    sqlite3_step $STMT
+  } {SQLITE_MISUSE}
+}
+do_test fkey2-17.1.4 {
+  sqlite3_finalize $STMT
+} {SQLITE_CONSTRAINT}
+verify_ex_errcode fkey2-17.1.4b SQLITE_CONSTRAINT_FOREIGNKEY
+do_test fkey2-17.1.5 {
+  execsql {
+    INSERT INTO one VALUES(2, 3, 4);
+    INSERT INTO one VALUES(3, 4, 5);
+    INSERT INTO two VALUES(1, 2, 3);
+    INSERT INTO two VALUES(2, 3, 4);
+    INSERT INTO two VALUES(3, 4, 5);
+  }
+} {1 1 1 1 1}
+do_test fkey2-17.1.6 {
+  catchsql {
+    BEGIN;
+      INSERT INTO one VALUES(0, 0, 0);
+      UPDATE two SET e=e+1, f=f+1;
+  }
+} {1 {FOREIGN KEY constraint failed}}
+do_test fkey2-17.1.7 {
+  execsql { SELECT * FROM one }
+} {1 2 3 2 3 4 3 4 5 0 0 0}
+do_test fkey2-17.1.8 {
+  execsql { SELECT * FROM two }
+} {1 2 3 2 3 4 3 4 5}
+do_test fkey2-17.1.9 {
+  execsql COMMIT
+} {}
+do_test fkey2-17.1.10 {
+  execsql {
+    CREATE TABLE three(
+      g, h, i, 
+      FOREIGN KEY(h, i) REFERENCES one(b, c) DEFERRABLE INITIALLY DEFERRED
+    );
+  }
+} {}
+do_test fkey2-17.1.11 {
+  set STMT [sqlite3_prepare_v2 db "INSERT INTO three VALUES(7, 8, 9)" -1 dummy]
+  sqlite3_step $STMT
+} {SQLITE_ROW}
+do_test fkey2-17.1.12 {
+  sqlite3_column_text $STMT 0
+} {1}
+do_test fkey2-17.1.13 {
+  sqlite3_step $STMT
+} {SQLITE_CONSTRAINT}
+verify_ex_errcode fkey2-17.1.13b SQLITE_CONSTRAINT_FOREIGNKEY
+do_test fkey2-17.1.14 {
+  sqlite3_finalize $STMT
+} {SQLITE_CONSTRAINT}
+verify_ex_errcode fkey2-17.1.14b SQLITE_CONSTRAINT_FOREIGNKEY
+
+drop_all_tables
+do_test fkey2-17.2.1 {
+  execsql {
+    CREATE TABLE high("a'b!" PRIMARY KEY, b);
+    CREATE TABLE low(
+      c, 
+      "d&6" REFERENCES high ON UPDATE CASCADE ON DELETE CASCADE
+    );
+  }
+} {}
+do_test fkey2-17.2.2 {
+  execsql {
+    INSERT INTO high VALUES('a', 'b');
+    INSERT INTO low VALUES('b', 'a');
+  }
+  db changes
+} {1}
+set nTotal [db total_changes]
+do_test fkey2-17.2.3 {
+  execsql { UPDATE high SET "a'b!" = 'c' }
+} {1}
+do_test fkey2-17.2.4 {
+  db changes
+} {1}
+do_test fkey2-17.2.5 {
+  expr [db total_changes] - $nTotal
+} {2}
+do_test fkey2-17.2.6 {
+  execsql { SELECT * FROM high ; SELECT * FROM low }
+} {c b b c}
+do_test fkey2-17.2.7 {
+  execsql { DELETE FROM high }
+} {1}
+do_test fkey2-17.2.8 {
+  db changes
+} {1}
+do_test fkey2-17.2.9 {
+  expr [db total_changes] - $nTotal
+} {4}
+do_test fkey2-17.2.10 {
+  execsql { SELECT * FROM high ; SELECT * FROM low }
+} {}
+execsql { PRAGMA count_changes = 0 }
+
+#-------------------------------------------------------------------------
+# Test that the authorization callback works.
+#
+
+ifcapable auth {
+  do_test fkey2-18.1 {
+    execsql {
+      CREATE TABLE long(a, b PRIMARY KEY, c);
+      CREATE TABLE short(d, e, f REFERENCES long);
+      CREATE TABLE mid(g, h, i REFERENCES long DEFERRABLE INITIALLY DEFERRED);
+    }
+  } {}
+
+  proc auth {args} {eval lappend ::authargs [lrange $args 0 4]; return SQLITE_OK}
+  db auth auth
+
+  # An insert on the parent table must read the child key of any deferred
+  # foreign key constraints. But not the child key of immediate constraints.
+  set authargs {}
+  do_test fkey2-18.2 {
+    execsql { INSERT INTO long VALUES(1, 2, 3) }
+    set authargs
+  } {SQLITE_INSERT long {} main {} SQLITE_READ mid i main {}}
+
+  # An insert on the child table of an immediate constraint must read the
+  # parent key columns (to see if it is a violation or not).
+  set authargs {}
+  do_test fkey2-18.3 {
+    execsql { INSERT INTO short VALUES(1, 3, 2) }
+    set authargs
+  } {SQLITE_INSERT short {} main {} SQLITE_READ long b main {}}
+  
+  # As must an insert on the child table of a deferred constraint.
+  set authargs {}
+  do_test fkey2-18.4 {
+    execsql { INSERT INTO mid VALUES(1, 3, 2) }
+    set authargs
+  } {SQLITE_INSERT mid {} main {} SQLITE_READ long b main {}}
+
+  do_test fkey2-18.5 {
+    execsql {
+      CREATE TABLE nought(a, b PRIMARY KEY, c);
+      CREATE TABLE cross(d, e, f,
+        FOREIGN KEY(e) REFERENCES nought(b) ON UPDATE CASCADE
+      );
+    }
+    execsql { INSERT INTO nought VALUES(2, 1, 2) }
+    execsql { INSERT INTO cross VALUES(0, 1, 0) }
+    set authargs [list]
+    execsql { UPDATE nought SET b = 5 }
+    set authargs
+  } {SQLITE_UPDATE nought b main {} SQLITE_READ cross e main {} SQLITE_READ cross e main {} SQLITE_READ nought b main {} SQLITE_READ nought b main {} SQLITE_READ nought b main {} SQLITE_UPDATE cross e main {} SQLITE_READ nought b main {} SQLITE_READ cross e main {} SQLITE_READ nought b main {} SQLITE_READ nought b main {}}
+
+  do_test fkey2-18.6 {
+    execsql {SELECT * FROM cross}
+  } {0 5 0}
+
+  do_test fkey2-18.7 {
+    execsql {
+      CREATE TABLE one(a INTEGER PRIMARY KEY, b);
+      CREATE TABLE two(b, c REFERENCES one);
+      INSERT INTO one VALUES(101, 102);
+    }
+    set authargs [list]
+    execsql { INSERT INTO two VALUES(100, 101); }
+    set authargs
+  } {SQLITE_INSERT two {} main {} SQLITE_READ one a main {}}
+
+  # Return SQLITE_IGNORE to requests to read from the parent table. This
+  # causes inserts of non-NULL keys into the child table to fail.
+  #
+  rename auth {}
+  proc auth {args} {
+    if {[lindex $args 1] == "long"} {return SQLITE_IGNORE}
+    return SQLITE_OK
+  }
+  do_test fkey2-18.8 {
+    catchsql { INSERT INTO short VALUES(1, 3, 2) }
+  } {1 {FOREIGN KEY constraint failed}}
+  do_test fkey2-18.9 {
+    execsql { INSERT INTO short VALUES(1, 3, NULL) }
+  } {}
+  do_test fkey2-18.10 {
+    execsql { SELECT * FROM short }
+  } {1 3 2 1 3 {}}
+  do_test fkey2-18.11 {
+    catchsql { UPDATE short SET f = 2 WHERE f IS NULL }
+  } {1 {FOREIGN KEY constraint failed}}
+
+  db auth {}
+  unset authargs
+}
+
+
+do_test fkey2-19.1 {
+  execsql {
+    CREATE TABLE main(id INTEGER PRIMARY KEY);
+    CREATE TABLE sub(id INT REFERENCES main(id));
+    INSERT INTO main VALUES(1);
+    INSERT INTO main VALUES(2);
+    INSERT INTO sub VALUES(2);
+  }
+} {}
+do_test fkey2-19.2 {
+  set S [sqlite3_prepare_v2 db "DELETE FROM main WHERE id = ?" -1 dummy]
+  sqlite3_bind_int $S 1 2
+  sqlite3_step $S
+} {SQLITE_CONSTRAINT}
+verify_ex_errcode fkey2-19.2b SQLITE_CONSTRAINT_FOREIGNKEY
+do_test fkey2-19.3 {
+  sqlite3_reset $S
+} {SQLITE_CONSTRAINT}
+verify_ex_errcode fkey2-19.3b SQLITE_CONSTRAINT_FOREIGNKEY
+do_test fkey2-19.4 {
+  sqlite3_bind_int $S 1 1
+  sqlite3_step $S
+} {SQLITE_DONE}
+do_test fkey2-19.4 {
+  sqlite3_finalize $S
+} {SQLITE_OK}
+
+drop_all_tables
+do_test fkey2-20.1 {
+  execsql {
+    CREATE TABLE pp(a PRIMARY KEY, b);
+    CREATE TABLE cc(c PRIMARY KEY, d REFERENCES pp);
+  }
+} {}
+
+foreach {tn insert} {
+  1 "INSERT"
+  2 "INSERT OR IGNORE"
+  3 "INSERT OR ABORT"
+  4 "INSERT OR ROLLBACK"
+  5 "INSERT OR REPLACE"
+  6 "INSERT OR FAIL"
+} {
+  do_test fkey2-20.2.$tn.1 {
+    catchsql "$insert INTO cc VALUES(1, 2)"
+  } {1 {FOREIGN KEY constraint failed}}
+  do_test fkey2-20.2.$tn.2 {
+    execsql { SELECT * FROM cc }
+  } {}
+  do_test fkey2-20.2.$tn.3 {
+    execsql {
+      BEGIN;
+        INSERT INTO pp VALUES(2, 'two');
+        INSERT INTO cc VALUES(1, 2);
+    }
+    catchsql "$insert INTO cc VALUES(3, 4)"
+  } {1 {FOREIGN KEY constraint failed}}
+  do_test fkey2-20.2.$tn.4 {
+    execsql { COMMIT ; SELECT * FROM cc }
+  } {1 2}
+  do_test fkey2-20.2.$tn.5 {
+    execsql { DELETE FROM cc ; DELETE FROM pp }
+  } {}
+}
+
+foreach {tn update} {
+  1 "UPDATE"
+  2 "UPDATE OR IGNORE"
+  3 "UPDATE OR ABORT"
+  4 "UPDATE OR ROLLBACK"
+  5 "UPDATE OR REPLACE"
+  6 "UPDATE OR FAIL"
+} {
+  do_test fkey2-20.3.$tn.1 {
+    execsql {
+      INSERT INTO pp VALUES(2, 'two');
+      INSERT INTO cc VALUES(1, 2);
+    }
+  } {}
+  do_test fkey2-20.3.$tn.2 {
+    catchsql "$update pp SET a = 1"
+  } {1 {FOREIGN KEY constraint failed}}
+  do_test fkey2-20.3.$tn.3 {
+    execsql { SELECT * FROM pp }
+  } {2 two}
+  do_test fkey2-20.3.$tn.4 {
+    catchsql "$update cc SET d = 1"
+  } {1 {FOREIGN KEY constraint failed}}
+  do_test fkey2-20.3.$tn.5 {
+    execsql { SELECT * FROM cc }
+  } {1 2}
+  do_test fkey2-20.3.$tn.6 {
+    execsql {
+      BEGIN;
+        INSERT INTO pp VALUES(3, 'three');
+    }
+    catchsql "$update pp SET a = 1 WHERE a = 2"
+  } {1 {FOREIGN KEY constraint failed}}
+  do_test fkey2-20.3.$tn.7 {
+    execsql { COMMIT ; SELECT * FROM pp }
+  } {2 two 3 three}
+  do_test fkey2-20.3.$tn.8 {
+    execsql {
+      BEGIN;
+        INSERT INTO cc VALUES(2, 2);
+    }
+    catchsql "$update cc SET d = 1 WHERE c = 1"
+  } {1 {FOREIGN KEY constraint failed}}
+  do_test fkey2-20.3.$tn.9 {
+    execsql { COMMIT ; SELECT * FROM cc }
+  } {1 2 2 2}
+  do_test fkey2-20.3.$tn.10 {
+    execsql { DELETE FROM cc ; DELETE FROM pp }
+  } {}
+}
+
+#-------------------------------------------------------------------------
+# The following block of tests, those prefixed with "fkey2-genfkey.", are 
+# the same tests that were used to test the ".genfkey" command provided 
+# by the shell tool. So these tests show that the built-in foreign key 
+# implementation is more or less compatible with the triggers generated 
+# by genfkey.
+#
+drop_all_tables
+do_test fkey2-genfkey.1.1 {
+  execsql {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c, UNIQUE(b, c));
+    CREATE TABLE t2(e REFERENCES t1, f);
+    CREATE TABLE t3(g, h, i, FOREIGN KEY (h, i) REFERENCES t1(b, c));
+  }
+} {}
+do_test fkey2-genfkey.1.2 {
+  catchsql { INSERT INTO t2 VALUES(1, 2) }
+} {1 {FOREIGN KEY constraint failed}}
+do_test fkey2-genfkey.1.3 {
+  execsql {
+    INSERT INTO t1 VALUES(1, 2, 3);
+    INSERT INTO t2 VALUES(1, 2);
+  }
+} {}
+do_test fkey2-genfkey.1.4 {
+  execsql { INSERT INTO t2 VALUES(NULL, 3) }
+} {}
+do_test fkey2-genfkey.1.5 {
+  catchsql { UPDATE t2 SET e = 5 WHERE e IS NULL }
+} {1 {FOREIGN KEY constraint failed}}
+do_test fkey2-genfkey.1.6 {
+  execsql { UPDATE t2 SET e = 1 WHERE e IS NULL }
+} {}
+do_test fkey2-genfkey.1.7 {
+  execsql { UPDATE t2 SET e = NULL WHERE f = 3 }
+} {}
+do_test fkey2-genfkey.1.8 {
+  catchsql { UPDATE t1 SET a = 10 }
+} {1 {FOREIGN KEY constraint failed}}
+do_test fkey2-genfkey.1.9 {
+  catchsql { UPDATE t1 SET a = NULL }
+} {1 {datatype mismatch}}
+do_test fkey2-genfkey.1.10 {
+  catchsql { DELETE FROM t1 }
+} {1 {FOREIGN KEY constraint failed}}
+do_test fkey2-genfkey.1.11 {
+  execsql { UPDATE t2 SET e = NULL }
+} {}
+do_test fkey2-genfkey.1.12 {
+  execsql { 
+    UPDATE t1 SET a = 10;
+    DELETE FROM t1;
+    DELETE FROM t2;
+  }
+} {}
+do_test fkey2-genfkey.1.13 {
+  execsql {
+    INSERT INTO t3 VALUES(1, NULL, NULL);
+    INSERT INTO t3 VALUES(1, 2, NULL);
+    INSERT INTO t3 VALUES(1, NULL, 3);
+  }
+} {}
+do_test fkey2-genfkey.1.14 {
+  catchsql { INSERT INTO t3 VALUES(3, 1, 4) }
+} {1 {FOREIGN KEY constraint failed}}
+do_test fkey2-genfkey.1.15 {
+  execsql { 
+    INSERT INTO t1 VALUES(1, 1, 4);
+    INSERT INTO t3 VALUES(3, 1, 4);
+  }
+} {}
+do_test fkey2-genfkey.1.16 {
+  catchsql { DELETE FROM t1 }
+} {1 {FOREIGN KEY constraint failed}}
+do_test fkey2-genfkey.1.17 {
+  catchsql { UPDATE t1 SET b = 10}
+} {1 {FOREIGN KEY constraint failed}}
+do_test fkey2-genfkey.1.18 {
+  execsql { UPDATE t1 SET a = 10}
+} {}
+do_test fkey2-genfkey.1.19 {
+  catchsql { UPDATE t3 SET h = 'hello' WHERE i = 3}
+} {1 {FOREIGN KEY constraint failed}}
+
+drop_all_tables
+do_test fkey2-genfkey.2.1 {
+  execsql {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c, UNIQUE(b, c));
+    CREATE TABLE t2(e REFERENCES t1 ON UPDATE CASCADE ON DELETE CASCADE, f);
+    CREATE TABLE t3(g, h, i, 
+        FOREIGN KEY (h, i) 
+        REFERENCES t1(b, c) ON UPDATE CASCADE ON DELETE CASCADE
+    );
+  }
+} {}
+do_test fkey2-genfkey.2.2 {
+  execsql {
+    INSERT INTO t1 VALUES(1, 2, 3);
+    INSERT INTO t1 VALUES(4, 5, 6);
+    INSERT INTO t2 VALUES(1, 'one');
+    INSERT INTO t2 VALUES(4, 'four');
+  }
+} {}
+do_test fkey2-genfkey.2.3 {
+  execsql {
+    UPDATE t1 SET a = 2 WHERE a = 1;
+    SELECT * FROM t2;
+  }
+} {2 one 4 four}
+do_test fkey2-genfkey.2.4 {
+  execsql {
+    DELETE FROM t1 WHERE a = 4;
+    SELECT * FROM t2;
+  }
+} {2 one}
+
+do_test fkey2-genfkey.2.5 {
+  execsql {
+    INSERT INTO t3 VALUES('hello', 2, 3);
+    UPDATE t1 SET c = 2;
+    SELECT * FROM t3;
+  }
+} {hello 2 2}
+do_test fkey2-genfkey.2.6 {
+  execsql {
+    DELETE FROM t1;
+    SELECT * FROM t3;
+  }
+} {}
+
+drop_all_tables
+do_test fkey2-genfkey.3.1 {
+  execsql {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c, UNIQUE(c, b));
+    CREATE TABLE t2(e REFERENCES t1 ON UPDATE SET NULL ON DELETE SET NULL, f);
+    CREATE TABLE t3(g, h, i, 
+        FOREIGN KEY (h, i) 
+        REFERENCES t1(b, c) ON UPDATE SET NULL ON DELETE SET NULL
+    );
+  }
+} {}
+do_test fkey2-genfkey.3.2 {
+  execsql {
+    INSERT INTO t1 VALUES(1, 2, 3);
+    INSERT INTO t1 VALUES(4, 5, 6);
+    INSERT INTO t2 VALUES(1, 'one');
+    INSERT INTO t2 VALUES(4, 'four');
+  }
+} {}
+do_test fkey2-genfkey.3.3 {
+  execsql {
+    UPDATE t1 SET a = 2 WHERE a = 1;
+    SELECT * FROM t2;
+  }
+} {{} one 4 four}
+do_test fkey2-genfkey.3.4 {
+  execsql {
+    DELETE FROM t1 WHERE a = 4;
+    SELECT * FROM t2;
+  }
+} {{} one {} four}
+do_test fkey2-genfkey.3.5 {
+  execsql {
+    INSERT INTO t3 VALUES('hello', 2, 3);
+    UPDATE t1 SET c = 2;
+    SELECT * FROM t3;
+  }
+} {hello {} {}}
+do_test fkey2-genfkey.3.6 {
+  execsql {
+    UPDATE t3 SET h = 2, i = 2;
+    DELETE FROM t1;
+    SELECT * FROM t3;
+  }
+} {hello {} {}}
+
+#-------------------------------------------------------------------------
+# Verify that ticket dd08e5a988d00decc4a543daa8dbbfab9c577ad8 has been
+# fixed.
+#
+do_test fkey2-dd08e5.1.1 {
+  execsql {
+    PRAGMA foreign_keys=ON;
+    CREATE TABLE tdd08(a INTEGER PRIMARY KEY, b);
+    CREATE UNIQUE INDEX idd08 ON tdd08(a,b);
+    INSERT INTO tdd08 VALUES(200,300);
+
+    CREATE TABLE tdd08_b(w,x,y, FOREIGN KEY(x,y) REFERENCES tdd08(a,b));
+    INSERT INTO tdd08_b VALUES(100,200,300);
+  }
+} {}
+do_test fkey2-dd08e5.1.2 {
+  catchsql {
+    DELETE FROM tdd08;
+  }
+} {1 {FOREIGN KEY constraint failed}}
+do_test fkey2-dd08e5.1.3 {
+  execsql {
+    SELECT * FROM tdd08;
+  }
+} {200 300}
+do_test fkey2-dd08e5.1.4 {
+  catchsql {
+    INSERT INTO tdd08_b VALUES(400,500,300);
+  }
+} {1 {FOREIGN KEY constraint failed}}
+do_test fkey2-dd08e5.1.5 {
+  catchsql {
+    UPDATE tdd08_b SET x=x+1;
+  }
+} {1 {FOREIGN KEY constraint failed}}
+do_test fkey2-dd08e5.1.6 {
+  catchsql {
+    UPDATE tdd08 SET a=a+1;
+  }
+} {1 {FOREIGN KEY constraint failed}}
+
+#-------------------------------------------------------------------------
+# Verify that ticket ce7c133ea6cc9ccdc1a60d80441f80b6180f5eba
+# fixed.
+#
+do_test fkey2-ce7c13.1.1 {
+  execsql {
+    CREATE TABLE tce71(a INTEGER PRIMARY KEY, b);
+    CREATE UNIQUE INDEX ice71 ON tce71(a,b);
+    INSERT INTO tce71 VALUES(100,200);
+    CREATE TABLE tce72(w, x, y, FOREIGN KEY(x,y) REFERENCES tce71(a,b));
+    INSERT INTO tce72 VALUES(300,100,200);
+    UPDATE tce71 set b = 200 where a = 100;
+    SELECT * FROM tce71, tce72;
+  }
+} {100 200 300 100 200}
+do_test fkey2-ce7c13.1.2 {
+  catchsql {
+    UPDATE tce71 set b = 201 where a = 100;
+  }
+} {1 {FOREIGN KEY constraint failed}}
+do_test fkey2-ce7c13.1.3 {
+  catchsql {
+    UPDATE tce71 set a = 101 where a = 100;
+  }
+} {1 {FOREIGN KEY constraint failed}}
+do_test fkey2-ce7c13.1.4 {
+  execsql {
+    CREATE TABLE tce73(a INTEGER PRIMARY KEY, b, UNIQUE(a,b));
+    INSERT INTO tce73 VALUES(100,200);
+    CREATE TABLE tce74(w, x, y, FOREIGN KEY(x,y) REFERENCES tce73(a,b));
+    INSERT INTO tce74 VALUES(300,100,200);
+    UPDATE tce73 set b = 200 where a = 100;
+    SELECT * FROM tce73, tce74;
+  }
+} {100 200 300 100 200}
+do_test fkey2-ce7c13.1.5 {
+  catchsql {
+    UPDATE tce73 set b = 201 where a = 100;
+  }
+} {1 {FOREIGN KEY constraint failed}}
+do_test fkey2-ce7c13.1.6 {
+  catchsql {
+    UPDATE tce73 set a = 101 where a = 100;
+  }
+} {1 {FOREIGN KEY constraint failed}}
+
+# 2015-04-16:  Foreign key errors propagate back up to the parser.
+#
+do_test fkey2-20150416-100 {
+  db close
+  sqlite3 db :memory:
+  catchsql {
+    PRAGMA foreign_keys=1;
+    CREATE TABLE t1(x PRIMARY KEY);
+    CREATE TABLE t(y REFERENCES t0(x)ON DELETE SET DEFAULT);
+    CREATE TABLE t0(y REFERENCES t1 ON DELETE SET NULL);
+    REPLACE INTO t1 SELECT(0);CREATE TABLE t2(x);CREATE TABLE t3;
+  }
+} {1 {foreign key mismatch - "t" referencing "t0"}}
+
+finish_test
diff --git a/test/fkey3.test b/test/fkey3.test
new file mode 100644
index 0000000000000000000000000000000000000000..a8d038202074c5723177fa12d680fe1dca8fd01b
--- /dev/null
+++ b/test/fkey3.test
@@ -0,0 +1,186 @@
+# 2009 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests for foreign keys.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable {!foreignkey||!trigger} {
+  finish_test
+  return
+}
+
+set testprefix fkey3
+
+# Create a table and some data to work with.
+#
+do_test fkey3-1.1 {
+  execsql {
+    PRAGMA foreign_keys=ON;
+    CREATE TABLE t1(x INTEGER PRIMARY KEY);
+    INSERT INTO t1 VALUES(100);
+    INSERT INTO t1 VALUES(101);
+    CREATE TABLE t2(y INTEGER REFERENCES t1 (x));
+    INSERT INTO t2 VALUES(100);
+    INSERT INTO t2 VALUES(101);
+    SELECT 1, x FROM t1;
+    SELECT 2, y FROM t2;
+  }
+} {1 100 1 101 2 100 2 101}
+
+do_test fkey3-1.2 {
+  catchsql {
+    DELETE FROM t1 WHERE x=100;
+  }
+} {1 {FOREIGN KEY constraint failed}}
+
+do_test fkey3-1.3 {
+  catchsql {
+    DROP TABLE t1;
+  }
+} {1 {FOREIGN KEY constraint failed}}
+
+do_test fkey3-1.4 {
+  execsql {
+    DROP TABLE t2;
+  }
+} {}
+
+do_test fkey3-1.5 {
+  execsql {
+    DROP TABLE t1;
+  }
+} {}
+
+do_test fkey3-2.1 {
+  execsql {
+    PRAGMA foreign_keys=ON;
+    CREATE TABLE t1(x INTEGER PRIMARY KEY);
+    INSERT INTO t1 VALUES(100);
+    INSERT INTO t1 VALUES(101);
+    CREATE TABLE t2(y INTEGER PRIMARY KEY REFERENCES t1 (x) ON UPDATE SET NULL);
+  }
+  execsql {
+    INSERT INTO t2 VALUES(100);
+    INSERT INTO t2 VALUES(101);
+    SELECT 1, x FROM t1;
+    SELECT 2, y FROM t2;
+  }
+} {1 100 1 101 2 100 2 101}
+
+
+#-------------------------------------------------------------------------
+# The following tests - fkey-3.* - test some edge cases to do with 
+# inserting rows into tables that have foreign keys where the parent
+# table is the same as the child table. Especially cases where the
+# new row being inserted matches itself.
+#
+do_execsql_test 3.1.1 {
+  CREATE TABLE t3(a, b, c, d, 
+    UNIQUE(a, b),
+    FOREIGN KEY(c, d) REFERENCES t3(a, b)
+  );
+  INSERT INTO t3 VALUES(1, 2, 1, 2);
+} {}
+do_catchsql_test 3.1.2 {
+  INSERT INTO t3 VALUES(NULL, 2, 5, 2);
+} {1 {FOREIGN KEY constraint failed}}
+do_catchsql_test 3.1.3 {
+  INSERT INTO t3 VALUES(NULL, 3, 5, 2);
+} {1 {FOREIGN KEY constraint failed}}
+
+do_execsql_test 3.2.1 {
+  CREATE TABLE t4(a UNIQUE, b REFERENCES t4(a));
+}
+do_catchsql_test 3.2.2 {
+  INSERT INTO t4 VALUES(NULL, 1);
+} {1 {FOREIGN KEY constraint failed}}
+
+do_execsql_test 3.3.1 {
+  CREATE TABLE t5(a INTEGER PRIMARY KEY, b REFERENCES t5(a));
+  INSERT INTO t5 VALUES(NULL, 1);
+} {}
+do_catchsql_test 3.3.2 {
+  INSERT INTO t5 VALUES(NULL, 3);
+} {1 {FOREIGN KEY constraint failed}}
+
+do_execsql_test 3.4.1 {
+  CREATE TABLE t6(a INTEGER PRIMARY KEY, b, c, d,
+    FOREIGN KEY(c, d) REFERENCES t6(a, b)
+  );
+  CREATE UNIQUE INDEX t6i ON t6(b, a);
+}
+do_execsql_test 3.4.2  { INSERT INTO t6 VALUES(NULL, 'a', 1, 'a'); } {}
+do_execsql_test 3.4.3  { INSERT INTO t6 VALUES(2, 'a', 2, 'a');    } {}
+do_execsql_test 3.4.4  { INSERT INTO t6 VALUES(NULL, 'a', 1, 'a'); } {}
+do_execsql_test 3.4.5  { INSERT INTO t6 VALUES(5, 'a', 2, 'a'); } {}
+do_catchsql_test 3.4.6 { 
+  INSERT INTO t6 VALUES(NULL, 'a', 65, 'a');    
+} {1 {FOREIGN KEY constraint failed}}
+
+do_execsql_test 3.4.7 {
+  INSERT INTO t6 VALUES(100, 'one', 100, 'one');
+  DELETE FROM t6 WHERE a = 100;
+}
+do_execsql_test 3.4.8 {
+  INSERT INTO t6 VALUES(100, 'one', 100, 'one');
+  UPDATE t6 SET c = 1, d = 'a' WHERE a = 100;
+  DELETE FROM t6 WHERE a = 100;
+}
+
+do_execsql_test 3.5.1 {
+  CREATE TABLE t7(a, b, c, d INTEGER PRIMARY KEY,
+    FOREIGN KEY(c, d) REFERENCES t7(a, b)
+  );
+  CREATE UNIQUE INDEX t7i ON t7(a, b);
+}
+do_execsql_test 3.5.2  { INSERT INTO t7 VALUES('x', 1, 'x', NULL) } {}
+do_execsql_test 3.5.3  { INSERT INTO t7 VALUES('x', 2, 'x', 2) } {}
+do_catchsql_test 3.5.4  { 
+  INSERT INTO t7 VALUES('x', 450, 'x', NULL);
+} {1 {FOREIGN KEY constraint failed}}
+do_catchsql_test 3.5.5  { 
+  INSERT INTO t7 VALUES('x', 450, 'x', 451);
+} {1 {FOREIGN KEY constraint failed}}
+
+
+do_execsql_test 3.6.1 {
+  CREATE TABLE t8(a, b, c, d, e, FOREIGN KEY(c, d) REFERENCES t8(a, b));
+  CREATE UNIQUE INDEX t8i1 ON t8(a, b);
+  CREATE UNIQUE INDEX t8i2 ON t8(c);
+  INSERT INTO t8 VALUES(1, 1, 1, 1, 1);
+}
+do_catchsql_test 3.6.2 { 
+  UPDATE t8 SET d = 2; 
+} {1 {FOREIGN KEY constraint failed}}
+do_execsql_test 3.6.3 { UPDATE t8 SET d = 1; }
+do_execsql_test 3.6.4 { UPDATE t8 SET e = 2; }
+
+do_catchsql_test 3.6.5 {
+  CREATE TABLE TestTable (
+    id INTEGER PRIMARY KEY,
+    name text,
+    source_id integer not null,
+    parent_id integer,
+
+    foreign key(source_id, parent_id) references TestTable(source_id, id)
+  );
+  CREATE UNIQUE INDEX testindex on TestTable(source_id, id);
+  PRAGMA foreign_keys=1;
+  INSERT INTO TestTable VALUES (1, 'parent', 1, null);
+  INSERT INTO TestTable VALUES (2, 'child', 1, 1);
+  UPDATE TestTable SET parent_id=1000 where id=2;
+} {1 {FOREIGN KEY constraint failed}}
+
+finish_test
diff --git a/test/fkey4.test b/test/fkey4.test
new file mode 100644
index 0000000000000000000000000000000000000000..79cf663478f0cbf722a5a976e09c2a2f540603f3
--- /dev/null
+++ b/test/fkey4.test
@@ -0,0 +1,57 @@
+# 2011 Feb 04
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file test deferred foreign key constraint processing to make
+# sure that when a statement not within BEGIN...END fails a constraint,
+# that statement doesn't hold the transaction open thus allowing
+# a subsequent statement to fail a deferred constraint with impunity.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable {!foreignkey||!trigger} {
+  finish_test
+  return
+}
+
+# Create a table and some data to work with.
+#
+do_test fkey4-1.1 {
+  execsql {
+    PRAGMA foreign_keys = ON;
+    CREATE TABLE t1(a PRIMARY KEY, b);
+    CREATE TABLE t2(c REFERENCES t1 DEFERRABLE INITIALLY DEFERRED, d);
+    INSERT INTO t1 VALUES(1,2);
+    INSERT INTO t2 VALUES(1,3);
+  }
+} {}
+
+do_test fkey4-1.2 {
+  set ::DB [sqlite3_connection_pointer db]
+  set ::SQL {INSERT INTO t2 VALUES(2,4)}
+  set ::STMT1 [sqlite3_prepare_v2 $::DB $::SQL -1 TAIL]
+  sqlite3_step $::STMT1
+} {SQLITE_CONSTRAINT}
+verify_ex_errcode fkey4-1.2b SQLITE_CONSTRAINT_FOREIGNKEY
+do_test fkey4-1.3 {
+  set ::STMT2 [sqlite3_prepare_v2 $::DB $::SQL -1 TAIL]
+  sqlite3_step $::STMT2
+} {SQLITE_CONSTRAINT}
+verify_ex_errcode fkey4-1.3b SQLITE_CONSTRAINT_FOREIGNKEY
+do_test fkey4-1.4 {
+  db eval {SELECT * FROM t2}
+} {1 3}
+sqlite3_finalize $::STMT1
+sqlite3_finalize $::STMT2
+
+finish_test
diff --git a/test/fkey5.test b/test/fkey5.test
new file mode 100644
index 0000000000000000000000000000000000000000..d467a64281dc43f250cff466b81cdbaf910d0cf7
--- /dev/null
+++ b/test/fkey5.test
@@ -0,0 +1,492 @@
+# 2012 December 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file tests the PRAGMA foreign_key_check command.
+#
+# EVIDENCE-OF: R-15402-03103 PRAGMA schema.foreign_key_check; PRAGMA
+# schema.foreign_key_check(table-name);
+#
+# EVIDENCE-OF: R-41653-15278 The foreign_key_check pragma checks the
+# database, or the table called "table-name", for foreign key
+# constraints that are violated. The foreign_key_check pragma returns
+# one row output for each foreign key violation.
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix fkey5
+
+ifcapable {!foreignkey} {
+  finish_test
+  return
+}
+
+do_test fkey5-1.1 {
+  db eval {
+    CREATE TABLE p1(a INTEGER PRIMARY KEY); INSERT INTO p1 VALUES(88),(89);
+    CREATE TABLE p2(a INT PRIMARY KEY); INSERT INTO p2 VALUES(77),(78);
+    CREATE TABLE p3(a TEXT PRIMARY KEY);
+    INSERT INTO p3 VALUES(66),(67),('alpha'),('BRAVO');
+    CREATE TABLE p4(a TEXT PRIMARY KEY COLLATE nocase);
+    INSERT INTO p4 VALUES('alpha'),('BRAVO'),('55'),('Delta'),('ECHO');
+    CREATE TABLE p5(a INTEGER PRIMARY KEY, b, c, UNIQUE(b,c));
+    INSERT INTO p5 VALUES(1,'Alpha','abc'),(2,'beta','def');
+    CREATE TABLE p6(a INTEGER PRIMARY KEY, b TEXT COLLATE nocase,
+                    c TEXT COLLATE rtrim, UNIQUE(b,c));
+    INSERT INTO p6 VALUES(1,'Alpha','abc '),(2,'bETA','def    ');
+
+    CREATE TABLE c1(x INTEGER PRIMARY KEY references p1);
+    CREATE TABLE c2(x INTEGER PRIMARY KEY references p2);
+    CREATE TABLE c3(x INTEGER PRIMARY KEY references p3);
+    CREATE TABLE c4(x INTEGER PRIMARY KEY references p4);
+    CREATE TABLE c5(x INT references p1);
+    CREATE TABLE c6(x INT references p2);
+    CREATE TABLE c7(x INT references p3);
+    CREATE TABLE c8(x INT references p4);
+    CREATE TABLE c9(x TEXT UNIQUE references p1);
+    CREATE TABLE c10(x TEXT UNIQUE references p2);
+    CREATE TABLE c11(x TEXT UNIQUE references p3);
+    CREATE TABLE c12(x TEXT UNIQUE references p4);
+    CREATE TABLE c13(x TEXT COLLATE nocase references p3);
+    CREATE TABLE c14(x TEXT COLLATE nocase references p4);
+    CREATE TABLE c15(x, y, FOREIGN KEY(x,y) REFERENCES p5(b,c));
+    CREATE TABLE c16(x, y, FOREIGN KEY(x,y) REFERENCES p5(c,b));
+    CREATE TABLE c17(x, y, FOREIGN KEY(x,y) REFERENCES p6(b,c));
+    CREATE TABLE c18(x, y, FOREIGN KEY(x,y) REFERENCES p6(c,b));
+    CREATE TABLE c19(x TEXT COLLATE nocase, y TEXT COLLATE rtrim,
+                     FOREIGN KEY(x,y) REFERENCES p5(b,c));
+    CREATE TABLE c20(x TEXT COLLATE nocase, y TEXT COLLATE rtrim,
+                     FOREIGN KEY(x,y) REFERENCES p5(c,b));
+    CREATE TABLE c21(x TEXT COLLATE nocase, y TEXT COLLATE rtrim,
+                     FOREIGN KEY(x,y) REFERENCES p6(b,c));
+    CREATE TABLE c22(x TEXT COLLATE nocase, y TEXT COLLATE rtrim,
+                     FOREIGN KEY(x,y) REFERENCES p6(c,b));
+
+    PRAGMA foreign_key_check;
+  }
+} {}    
+do_test fkey5-1.2 {
+  db eval {
+    INSERT INTO c1 VALUES(90),(87),(88);
+    PRAGMA foreign_key_check;
+  }
+} {c1 87 p1 0 c1 90 p1 0}
+do_test fkey5-1.2b {
+  db eval {
+    PRAGMA main.foreign_key_check;
+  }
+} {c1 87 p1 0 c1 90 p1 0}
+do_test fkey5-1.2c {
+  db eval {
+    PRAGMA temp.foreign_key_check;
+  }
+} {}
+do_test fkey5-1.3 {
+  db eval {
+    PRAGMA foreign_key_check(c1);
+  }
+} {c1 87 p1 0 c1 90 p1 0}
+do_test fkey5-1.4 {
+  db eval {
+    PRAGMA foreign_key_check(c2);
+  }
+} {}
+do_test fkey5-1.5 {
+  db eval {
+    PRAGMA main.foreign_key_check(c2);
+  }
+} {}
+do_test fkey5-1.6 {
+  catchsql {
+    PRAGMA temp.foreign_key_check(c2);
+  }
+} {1 {no such table: temp.c2}}
+
+# EVIDENCE-OF: R-45728-08709 There are four columns in each result row.
+#
+# EVIDENCE-OF: R-55672-01620 The first column is the name of the table
+# that contains the REFERENCES clause.
+#
+# EVIDENCE-OF: R-00471-55166 The second column is the rowid of the row
+# that contains the invalid REFERENCES clause, or NULL if the child
+# table is a WITHOUT ROWID table.
+#
+# The second clause in the previous is tested by fkey5-10.3.
+#
+# EVIDENCE-OF: R-40482-20265 The third column is the name of the table
+# that is referred to.
+#
+# EVIDENCE-OF: R-62839-07969 The fourth column is the index of the
+# specific foreign key constraint that failed.
+#
+do_test fkey5-2.0 {
+  db eval {
+    INSERT INTO c5 SELECT x FROM c1;
+    DELETE FROM c1;
+    PRAGMA foreign_key_check;
+  }
+} {c5 1 p1 0 c5 3 p1 0}
+do_test fkey5-2.1 {
+  db eval {
+    PRAGMA foreign_key_check(c5);
+  }
+} {c5 1 p1 0 c5 3 p1 0}
+do_test fkey5-2.2 {
+  db eval {
+    PRAGMA foreign_key_check(c1);
+  }
+} {}
+do_execsql_test fkey5-2.3 {
+  PRAGMA foreign_key_list(c5);
+} {0 0 p1 x {} {NO ACTION} {NO ACTION} NONE}
+
+do_test fkey5-3.0 {
+  db eval {
+    INSERT INTO c9 SELECT x FROM c5;
+    DELETE FROM c5;
+    PRAGMA foreign_key_check;
+  }
+} {c9 1 p1 0 c9 3 p1 0}
+do_test fkey5-3.1 {
+  db eval {
+    PRAGMA foreign_key_check(c9);
+  }
+} {c9 1 p1 0 c9 3 p1 0}
+do_test fkey5-3.2 {
+  db eval {
+    PRAGMA foreign_key_check(c5);
+  }
+} {}
+
+do_test fkey5-4.0 {
+  db eval {
+    DELETE FROM c9;
+    INSERT INTO c2 VALUES(79),(77),(76);
+    PRAGMA foreign_key_check;
+  }
+} {c2 76 p2 0 c2 79 p2 0}
+do_test fkey5-4.1 {
+  db eval {
+    PRAGMA foreign_key_check(c2);
+  }
+} {c2 76 p2 0 c2 79 p2 0}
+do_test fkey5-4.2 {
+  db eval {
+    INSERT INTO c6 SELECT x FROM c2;
+    DELETE FROM c2;
+    PRAGMA foreign_key_check;
+  }
+} {c6 1 p2 0 c6 3 p2 0}
+do_test fkey5-4.3 {
+  db eval {
+    PRAGMA foreign_key_check(c6);
+  }
+} {c6 1 p2 0 c6 3 p2 0}
+do_test fkey5-4.4 {
+  db eval {
+    INSERT INTO c10 SELECT x FROM c6;
+    DELETE FROM c6;
+    PRAGMA foreign_key_check;
+  }
+} {c10 1 p2 0 c10 3 p2 0}
+do_test fkey5-4.5 {
+  db eval {
+    PRAGMA foreign_key_check(c10);
+  }
+} {c10 1 p2 0 c10 3 p2 0}
+
+do_test fkey5-5.0 {
+  db eval {
+    DELETE FROM c10;
+    INSERT INTO c3 VALUES(68),(67),(65);
+    PRAGMA foreign_key_check;
+  }
+} {c3 65 p3 0 c3 68 p3 0}
+do_test fkey5-5.1 {
+  db eval {
+    PRAGMA foreign_key_check(c3);
+  }
+} {c3 65 p3 0 c3 68 p3 0}
+do_test fkey5-5.2 {
+  db eval {
+    INSERT INTO c7 SELECT x FROM c3;
+    INSERT INTO c7 VALUES('Alpha'),('alpha'),('foxtrot');
+    DELETE FROM c3;
+    PRAGMA foreign_key_check;
+  }
+} {c7 1 p3 0 c7 3 p3 0 c7 4 p3 0 c7 6 p3 0}
+do_test fkey5-5.3 {
+  db eval {
+    PRAGMA foreign_key_check(c7);
+  }
+} {c7 1 p3 0 c7 3 p3 0 c7 4 p3 0 c7 6 p3 0}
+do_test fkey5-5.4 {
+  db eval {
+    INSERT INTO c11 SELECT x FROM c7;
+    DELETE FROM c7;
+    PRAGMA foreign_key_check;
+  }
+} {c11 1 p3 0 c11 3 p3 0 c11 4 p3 0 c11 6 p3 0}
+do_test fkey5-5.5 {
+  db eval {
+    PRAGMA foreign_key_check(c11);
+  }
+} {c11 1 p3 0 c11 3 p3 0 c11 4 p3 0 c11 6 p3 0}
+
+do_test fkey5-6.0 {
+  db eval {
+    DELETE FROM c11;
+    INSERT INTO c4 VALUES(54),(55),(56);
+    PRAGMA foreign_key_check;
+  }
+} {c4 54 p4 0 c4 56 p4 0}
+do_test fkey5-6.1 {
+  db eval {
+    PRAGMA foreign_key_check(c4);
+  }
+} {c4 54 p4 0 c4 56 p4 0}
+do_test fkey5-6.2 {
+  db eval {
+    INSERT INTO c8 SELECT x FROM c4;
+    INSERT INTO c8 VALUES('Alpha'),('ALPHA'),('foxtrot');
+    DELETE FROM c4;
+    PRAGMA foreign_key_check;
+  }
+} {c8 1 p4 0 c8 3 p4 0 c8 6 p4 0}
+do_test fkey5-6.3 {
+  db eval {
+    PRAGMA foreign_key_check(c8);
+  }
+} {c8 1 p4 0 c8 3 p4 0 c8 6 p4 0}
+do_test fkey5-6.4 {
+  db eval {
+    INSERT INTO c12 SELECT x FROM c8;
+    DELETE FROM c8;
+    PRAGMA foreign_key_check;
+  }
+} {c12 1 p4 0 c12 3 p4 0 c12 6 p4 0}
+do_test fkey5-6.5 {
+  db eval {
+    PRAGMA foreign_key_check(c12);
+  }
+} {c12 1 p4 0 c12 3 p4 0 c12 6 p4 0}
+
+do_test fkey5-7.1 {
+  set res {}
+  db eval {
+    INSERT OR IGNORE INTO c13 SELECT * FROM c12;
+    INSERT OR IGNORE INTO C14 SELECT * FROM c12;
+    DELETE FROM c12;
+    PRAGMA foreign_key_check;
+  } {
+    lappend res [list $table $rowid $fkid $parent]
+  }
+  lsort $res
+} {{c13 1 0 p3} {c13 2 0 p3} {c13 3 0 p3} {c13 4 0 p3} {c13 5 0 p3} {c13 6 0 p3} {c14 1 0 p4} {c14 3 0 p4} {c14 6 0 p4}}
+do_test fkey5-7.2 {
+  db eval {
+    PRAGMA foreign_key_check(c14);
+  }
+} {c14 1 p4 0 c14 3 p4 0 c14 6 p4 0}
+do_test fkey5-7.3 {
+  db eval {
+    PRAGMA foreign_key_check(c13);
+  }
+} {c13 1 p3 0 c13 2 p3 0 c13 3 p3 0 c13 4 p3 0 c13 5 p3 0 c13 6 p3 0}
+
+do_test fkey5-8.0 {
+  db eval {
+    DELETE FROM c13;
+    DELETE FROM c14;
+    INSERT INTO c19 VALUES('alpha','abc');
+    PRAGMA foreign_key_check(c19);
+  }
+} {c19 1 p5 0}
+do_test fkey5-8.1 {
+  db eval {
+    DELETE FROM c19;
+    INSERT INTO c19 VALUES('Alpha','abc');
+    PRAGMA foreign_key_check(c19);
+  }
+} {}
+do_test fkey5-8.2 {
+  db eval {
+    INSERT INTO c20 VALUES('Alpha','abc');
+    PRAGMA foreign_key_check(c20);
+  }
+} {c20 1 p5 0}
+do_test fkey5-8.3 {
+  db eval {
+    DELETE FROM c20;
+    INSERT INTO c20 VALUES('abc','Alpha');
+    PRAGMA foreign_key_check(c20);
+  }
+} {}
+do_test fkey5-8.4 {
+  db eval {
+    INSERT INTO c21 VALUES('alpha','abc    ');
+    PRAGMA foreign_key_check(c21);
+  }
+} {}
+do_test fkey5-8.5 {
+  db eval {
+    DELETE FROM c21;
+    INSERT INTO c19 VALUES('Alpha','abc');
+    PRAGMA foreign_key_check(c21);
+  }
+} {}
+do_test fkey5-8.6 {
+  db eval {
+    INSERT INTO c22 VALUES('Alpha','abc');
+    PRAGMA foreign_key_check(c22);
+  }
+} {c22 1 p6 0}
+do_test fkey5-8.7 {
+  db eval {
+    DELETE FROM c22;
+    INSERT INTO c22 VALUES('abc  ','ALPHA');
+    PRAGMA foreign_key_check(c22);
+  }
+} {}
+
+
+#-------------------------------------------------------------------------
+# Tests 9.* verify that missing parent tables are handled correctly.
+#
+do_execsql_test 9.1.1 {
+  CREATE TABLE k1(x REFERENCES s1);
+  PRAGMA foreign_key_check(k1);
+} {}
+do_execsql_test 9.1.2 {
+  INSERT INTO k1 VALUES(NULL);
+  PRAGMA foreign_key_check(k1);
+} {}
+do_execsql_test 9.1.3 {
+  INSERT INTO k1 VALUES(1);
+  PRAGMA foreign_key_check(k1);
+} {k1 2 s1 0}
+
+do_execsql_test 9.2.1 {
+  CREATE TABLE k2(x, y, FOREIGN KEY(x, y) REFERENCES s1(a, b));
+  PRAGMA foreign_key_check(k2);
+} {}
+do_execsql_test 9.2 {
+  INSERT INTO k2 VALUES(NULL, 'five');
+  PRAGMA foreign_key_check(k2);
+} {}
+do_execsql_test 9.3 {
+  INSERT INTO k2 VALUES('one', NULL);
+  PRAGMA foreign_key_check(k2);
+} {}
+do_execsql_test 9.4 {
+  INSERT INTO k2 VALUES('six', 'seven');
+  PRAGMA foreign_key_check(k2);
+} {k2 3 s1 0}
+
+#-------------------------------------------------------------------------
+# Test using a WITHOUT ROWID table as the child table with an INTEGER 
+# PRIMARY KEY as the parent key.
+#
+reset_db
+do_execsql_test 10.1 {
+  CREATE TABLE p30 (id INTEGER PRIMARY KEY);
+  CREATE TABLE IF NOT EXISTS c30 (
+      line INTEGER, 
+      master REFERENCES p30(id), 
+      PRIMARY KEY(master)
+  ) WITHOUT ROWID;
+
+  INSERT INTO p30 (id) VALUES (1);
+  INSERT INTO c30 (master, line)  VALUES (1, 999);
+}
+do_execsql_test 10.2 {
+  PRAGMA foreign_key_check;
+}
+# EVIDENCE-OF: R-00471-55166 The second column is the rowid of the row
+# that contains the invalid REFERENCES clause, or NULL if the child
+# table is a WITHOUT ROWID table.
+do_execsql_test 10.3 {
+  INSERT INTO c30 VALUES(45, 45);
+  PRAGMA foreign_key_check;
+} {c30 {} p30 0}
+
+#-------------------------------------------------------------------------
+# Test "foreign key mismatch" errors.
+#
+reset_db
+do_execsql_test 11.0 {
+  CREATE TABLE tt(y);
+  CREATE TABLE c11(x REFERENCES tt(y));
+}
+do_catchsql_test 11.1 {
+  PRAGMA foreign_key_check;
+} {1 {foreign key mismatch - "c11" referencing "tt"}}
+
+# 2020-07-03 Bug in foreign_key_check discovered while working on the
+# forum reports that pragma_foreign_key_check does not accept an argument:
+# If two separate schemas seem to reference one another, that causes
+# problems for foreign_key_check.
+#
+reset_db
+do_execsql_test 12.0 {
+  ATTACH ':memory:' as aux;
+  CREATE TABLE aux.t1(a INTEGER PRIMARY KEY, b TEXT REFERENCES t2);
+  CREATE TABLE main.t2(x TEXT PRIMARY KEY, y INT);
+  INSERT INTO main.t2 VALUES('abc',11),('def',22),('xyz',99);
+  INSERT INTO aux.t1 VALUES(5,'abc'),(7,'xyz'),(9,'oops');
+  PRAGMA foreign_key_check=t1;
+} {t1 5 t2 0 t1 7 t2 0 t1 9 t2 0}
+do_execsql_test 12.1 {
+  CREATE TABLE aux.t2(x TEXT PRIMARY KEY, y INT);
+  INSERT INTO aux.t2 VALUES('abc',11),('def',22),('xyz',99);
+  PRAGMA foreign_key_check=t1;
+} {t1 9 t2 0}
+
+# 2020-07-03: the pragma_foreign_key_check virtual table should
+# accept arguments for the table name and/or schema name.
+#
+ifcapable vtab {
+  do_execsql_test 13.0 {
+    SELECT *, 'x' FROM pragma_foreign_key_check('t1');
+  } {t1 9 t2 0 x}
+  do_catchsql_test 13.1 {
+    SELECT *, 'x' FROM pragma_foreign_key_check('t1','main');
+  } {1 {no such table: main.t1}}
+  do_execsql_test 13.2 {
+    SELECT *, 'x' FROM pragma_foreign_key_check('t1','aux');
+  } {t1 9 t2 0 x}
+}
+
+ifcapable vtab {
+  reset_db
+    do_execsql_test 13.10 {
+      PRAGMA foreign_keys=OFF;
+      CREATE TABLE t1(a INTEGER PRIMARY KEY, b TEXT REFERENCES t2);
+      CREATE TABLE t2(x TEXT PRIMARY KEY, y INT);
+      CREATE TABLE t3(w TEXT, z INT REFERENCES t1);
+      INSERT INTO t2 VALUES('abc',11),('def',22),('xyz',99);
+      INSERT INTO t1 VALUES(5,'abc'),(7,'xyz'),(9,'oops');
+      INSERT INTO t3 VALUES(11,7),(22,19);
+    } {}
+  do_execsql_test 13.11 {
+    SELECT x.*, '|'
+      FROM sqlite_schema, pragma_foreign_key_check(name) AS x
+      WHERE type='table'
+      ORDER BY x."table";
+  } {t1 9 t2 0 | t3 2 t1 0 |}
+  do_execsql_test 13.12 {
+    SELECT *, '|'
+      FROM pragma_foreign_key_check AS x
+      ORDER BY x."table";
+  } {t1 9 t2 0 | t3 2 t1 0 |}
+}
+
+finish_test
diff --git a/test/fkey6.test b/test/fkey6.test
new file mode 100644
index 0000000000000000000000000000000000000000..b658f20fea19665ef32cf00ea13ab1c9fa4edbdc
--- /dev/null
+++ b/test/fkey6.test
@@ -0,0 +1,229 @@
+# 2012 December 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file tests the PRAGMA defer_foreign_keys and 
+# SQLITE_DBSTATUS_DEFERRED_FKS
+#
+# EVIDENCE-OF: R-18981-16292 When the defer_foreign_keys PRAGMA is on,
+# enforcement of all foreign key constraints is delayed until the
+# outermost transaction is committed.
+#
+# EVIDENCE-OF: R-28911-57501 The defer_foreign_keys pragma defaults to
+# OFF so that foreign key constraints are only deferred if they are
+# created as "DEFERRABLE INITIALLY DEFERRED".
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix fkey6
+
+ifcapable {!foreignkey} {
+  finish_test
+  return
+}
+
+do_execsql_test fkey6-1.0 {
+  PRAGMA defer_foreign_keys;
+} {0}
+
+do_execsql_test fkey6-1.1 {
+  PRAGMA foreign_keys=ON;
+  CREATE TABLE t1(x INTEGER PRIMARY KEY);
+  CREATE TABLE t2(y INTEGER PRIMARY KEY,
+          z INTEGER REFERENCES t1(x) DEFERRABLE INITIALLY DEFERRED);
+  CREATE INDEX t2z ON t2(z);
+  CREATE TABLE t3(u INTEGER PRIMARY KEY, v INTEGER REFERENCES t1(x));
+  CREATE INDEX t3v ON t3(v);
+  INSERT INTO t1 VALUES(1),(2),(3),(4),(5);
+  INSERT INTO t2 VALUES(1,1),(2,2);
+  INSERT INTO t3 VALUES(3,3),(4,4);
+} {}
+do_test fkey6-1.2 {
+  catchsql {DELETE FROM t1 WHERE x=2;}
+} {1 {FOREIGN KEY constraint failed}}
+do_test fkey6-1.3 {
+  sqlite3_db_status db DBSTATUS_DEFERRED_FKS 0
+} {0 0 0}
+do_test fkey6-1.4 {
+  execsql {
+    BEGIN;
+    DELETE FROM t1 WHERE x=1;
+  }
+} {}
+do_test fkey6-1.5.1 {
+  sqlite3_db_status db DBSTATUS_DEFERRED_FKS 1
+} {0 1 0}
+do_test fkey6-1.5.2 {
+  sqlite3_db_status db DBSTATUS_DEFERRED_FKS 0
+} {0 1 0}
+do_test fkey6-1.6 {
+  execsql {
+    ROLLBACK;
+  }
+} {}
+do_test fkey6-1.7 {
+  sqlite3_db_status db DBSTATUS_DEFERRED_FKS 0
+} {0 0 0}
+do_test fkey6-1.8 {
+  execsql {
+    PRAGMA defer_foreign_keys=ON;
+    BEGIN;
+    DELETE FROM t1 WHERE x=3;
+  }
+} {}
+do_test fkey6-1.9 {
+  sqlite3_db_status db DBSTATUS_DEFERRED_FKS 0
+} {0 1 0}
+
+# EVIDENCE-OF: R-21752-26913 The defer_foreign_keys pragma is
+# automatically switched off at each COMMIT or ROLLBACK. Hence, the
+# defer_foreign_keys pragma must be separately enabled for each
+# transaction.
+do_execsql_test fkey6-1.10.1 {
+  PRAGMA defer_foreign_keys;
+  ROLLBACK;
+  PRAGMA defer_foreign_keys;
+  BEGIN;
+  PRAGMA defer_foreign_keys=ON;
+  PRAGMA defer_foreign_keys;
+  COMMIT;
+  PRAGMA defer_foreign_keys;
+  BEGIN;
+} {1 0 1 0}
+do_test fkey6-1.10.2 {
+  catchsql {DELETE FROM t1 WHERE x=3}
+} {1 {FOREIGN KEY constraint failed}}
+db eval {ROLLBACK}
+
+do_test fkey6-1.20 {
+  execsql {
+    BEGIN;
+    DELETE FROM t1 WHERE x=1;
+  }
+  sqlite3_db_status db DBSTATUS_DEFERRED_FKS 0
+} {0 1 0}
+do_test fkey6-1.21 {
+  execsql {
+    DELETE FROM t2 WHERE y=1;
+  }
+  sqlite3_db_status db DBSTATUS_DEFERRED_FKS 0
+} {0 0 0}
+do_test fkey6-1.22 {
+  execsql {
+    COMMIT;
+  }
+} {}
+
+do_execsql_test fkey6-2.1 {
+  CREATE TABLE p1(a PRIMARY KEY);
+  INSERT INTO p1 VALUES('one'), ('two');
+  CREATE TABLE c1(x REFERENCES p1);
+  INSERT INTO c1 VALUES('two'), ('one');
+}
+
+do_execsql_test fkey6-2.2 {
+  BEGIN;
+    PRAGMA defer_foreign_keys = 1;
+    DELETE FROM p1;
+  ROLLBACK;
+  PRAGMA defer_foreign_keys;
+} {0}
+
+do_execsql_test fkey6-2.3 {
+  BEGIN;
+    PRAGMA defer_foreign_keys = 1;
+    DROP TABLE p1;
+    PRAGMA vdbe_trace = 0;
+  ROLLBACK;
+  PRAGMA defer_foreign_keys;
+} {0}
+
+do_execsql_test fkey6-2.4 {
+  BEGIN;
+    PRAGMA defer_foreign_keys = 1;
+    DELETE FROM p1;
+    DROP TABLE c1;
+  COMMIT;
+  PRAGMA defer_foreign_keys;
+} {0}
+
+do_execsql_test fkey6-2.5 {
+  DROP TABLE p1;
+  CREATE TABLE p1(a PRIMARY KEY);
+  INSERT INTO p1 VALUES('one'), ('two');
+  CREATE TABLE c1(x REFERENCES p1);
+  INSERT INTO c1 VALUES('two'), ('one');
+}
+
+do_execsql_test fkey6-2.6 {
+  BEGIN;
+    PRAGMA defer_foreign_keys = 1;
+    INSERT INTO c1 VALUES('three');
+    DROP TABLE c1;
+  COMMIT;
+  PRAGMA defer_foreign_keys;
+} {0}
+
+#--------------------------------------------------------------------------
+# Test that defer_foreign_keys disables RESTRICT.
+#
+do_execsql_test 3.1 {
+  CREATE TABLE p2(a PRIMARY KEY, b);
+  CREATE TABLE c2(x, y REFERENCES p2 ON DELETE RESTRICT ON UPDATE RESTRICT);
+  INSERT INTO p2 VALUES(1, 'one');
+  INSERT INTO p2 VALUES(2, 'two');
+  INSERT INTO c2 VALUES('i', 1);
+}
+
+do_catchsql_test 3.2.1 {
+  BEGIN;
+    UPDATE p2 SET a=a-1;
+} {1 {FOREIGN KEY constraint failed}}
+do_execsql_test 3.2.2 { COMMIT }
+
+do_execsql_test 3.2.3 {
+  BEGIN;
+    PRAGMA defer_foreign_keys = 1;
+    UPDATE p2 SET a=a-1;
+  COMMIT;
+}
+
+do_execsql_test 3.2.4 {
+  BEGIN;
+    PRAGMA defer_foreign_keys = 1;
+    UPDATE p2 SET a=a-1;
+}
+do_catchsql_test 3.2.5 {
+  COMMIT;
+} {1 {FOREIGN KEY constraint failed}}
+do_execsql_test 3.2.6 { ROLLBACK }
+
+do_execsql_test 3.3.1 {
+  CREATE TRIGGER p2t AFTER DELETE ON p2 BEGIN
+    INSERT INTO p2 VALUES(old.a, 'deleted!');
+  END;
+}
+do_catchsql_test 3.3.2 {
+  BEGIN;
+    DELETE FROM p2 WHERE a=1;
+} {1 {FOREIGN KEY constraint failed}}
+do_execsql_test 3.3.3 { COMMIT }
+
+do_execsql_test 3.3.4 {
+  BEGIN;
+    PRAGMA defer_foreign_keys = 1;
+    DELETE FROM p2 WHERE a=1;
+  COMMIT;
+  SELECT * FROM p2;
+} {0 one 1 deleted!}
+
+
+finish_test
diff --git a/test/fkey7.test b/test/fkey7.test
new file mode 100644
index 0000000000000000000000000000000000000000..77870a7505a377536c866e56a31143483f890d46
--- /dev/null
+++ b/test/fkey7.test
@@ -0,0 +1,121 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests for foreign keys.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix fkey7
+
+ifcapable {!foreignkey} {
+  finish_test
+  return
+}
+
+do_execsql_test 1.1 {
+  PRAGMA foreign_keys = 1;
+
+  CREATE TABLE s1(a PRIMARY KEY, b);
+  CREATE TABLE par(a, b REFERENCES s1, c UNIQUE, PRIMARY KEY(a));
+
+  CREATE TABLE c1(a, b REFERENCES par);
+  CREATE TABLE c2(a, b REFERENCES par);
+  CREATE TABLE c3(a, b REFERENCES par(c));
+}
+
+proc auth {op tbl args} {
+  if {$op == "SQLITE_READ"} { set ::tbls($tbl) 1 }
+  return "SQLITE_OK"
+}
+db auth auth
+db cache size 0
+proc do_tblsread_test {tn sql tbllist} {
+  array unset ::tbls
+  uplevel [list execsql $sql]
+  uplevel [list do_test $tn {lsort [array names ::tbls]} $tbllist]
+}
+
+do_tblsread_test 1.2 { UPDATE par SET b=? WHERE a=? } {par s1}
+do_tblsread_test 1.3 { UPDATE par SET a=? WHERE b=? } {c1 c2 par}
+do_tblsread_test 1.4 { UPDATE par SET c=? WHERE b=? } {c3 par}
+do_tblsread_test 1.5 { UPDATE par SET a=?,b=?,c=? WHERE b=? } {c1 c2 c3 par s1}
+
+ifcapable incrblob {
+  do_execsql_test 2.0 {
+    CREATE TABLE pX(x PRIMARY KEY);
+    CREATE TABLE cX(a INTEGER PRIMARY KEY, b REFERENCES pX);
+  }
+  
+  do_catchsql_test 2.1 {
+    INSERT INTO cX VALUES(11, zeroblob(40));
+  } {1 {FOREIGN KEY constraint failed}}
+  
+  do_test 2.2 {
+    set stmt [sqlite3_prepare_v2 db "INSERT INTO cX VALUES(11, ?)" -1]
+    sqlite3_bind_zeroblob $stmt 1 45
+    sqlite3_step $stmt
+    sqlite3_finalize $stmt
+  } {SQLITE_CONSTRAINT}
+}
+
+ifcapable stat4 {
+  do_execsql_test 3.0 {
+    CREATE TABLE p4 (id INTEGER NOT NULL PRIMARY KEY);
+    INSERT INTO p4 VALUES(1), (2), (3);
+
+    CREATE TABLE c4(x INTEGER REFERENCES p4(id) DEFERRABLE INITIALLY DEFERRED);
+    CREATE INDEX c4_x ON c4(x);
+    INSERT INTO c4 VALUES(1), (2), (3);
+
+    ANALYZE;
+    INSERT INTO p4(id) VALUES(4);
+  }
+}
+
+
+do_execsql_test 4.0 {
+  PRAGMA foreign_keys = true;
+  CREATE TABLE parent(
+    p PRIMARY KEY
+  );
+  CREATE TABLE child(
+    c UNIQUE REFERENCES parent(p)
+  );
+}
+
+do_catchsql_test 4.1 {
+  INSERT OR FAIL INTO child VALUES(123), (123);
+} {1 {FOREIGN KEY constraint failed}}
+
+do_execsql_test 4.2 {
+  SELECT * FROM child;
+} {}
+
+do_execsql_test 4.3 {
+  PRAGMA foreign_key_check;
+} {}
+
+do_catchsql_test 4.4 {
+  INSERT INTO parent VALUES(123);
+  INSERT OR FAIL INTO child VALUES(123), (123);
+} {1 {UNIQUE constraint failed: child.c}}
+
+do_execsql_test 4.5 {
+  SELECT * FROM child;
+} {123}
+
+do_execsql_test 4.6 {
+  PRAGMA foreign_key_check;
+} {}
+
+finish_test
diff --git a/test/fkey8.test b/test/fkey8.test
new file mode 100644
index 0000000000000000000000000000000000000000..2d72f6fcf0c84b4225b4535eb114b7b3411004ae
--- /dev/null
+++ b/test/fkey8.test
@@ -0,0 +1,253 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests for foreign keys.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix fkey8
+
+ifcapable {!foreignkey} {
+  finish_test
+  return
+}
+do_execsql_test 1.0 { PRAGMA foreign_keys = 1; }
+
+
+foreach {tn use_stmt sql schema} {
+  1   1 "DELETE FROM p1" {
+    CREATE TABLE p1(a PRIMARY KEY);
+    CREATE TABLE c1(b REFERENCES p1);
+  }
+
+  2.1     0 "DELETE FROM p1" {
+    CREATE TABLE p1(a PRIMARY KEY);
+    CREATE TABLE c1(b REFERENCES p1 ON DELETE CASCADE);
+  }
+  2.2   0 "DELETE FROM p1" {
+    CREATE TABLE p1(a PRIMARY KEY);
+    CREATE TABLE c1(b REFERENCES p1 ON DELETE SET NULL);
+  }
+  2.3   1 "DELETE FROM p1" {
+    CREATE TABLE p1(a PRIMARY KEY);
+    CREATE TABLE c1(b REFERENCES p1 ON DELETE SET DEFAULT);
+  }
+
+  3   1 "DELETE FROM p1" {
+    CREATE TABLE p1(a PRIMARY KEY);
+    CREATE TABLE c1(b REFERENCES p1 ON DELETE CASCADE);
+    CREATE TRIGGER ct1 AFTER DELETE ON c1 BEGIN
+      INSERT INTO p1 VALUES('x');
+    END;
+  }
+
+  4   1 "DELETE FROM p1" {
+    CREATE TABLE p1(a PRIMARY KEY);
+    CREATE TABLE c1(b REFERENCES p1 ON DELETE CASCADE, c PRIMARY KEY);
+    CREATE TABLE cc1(d REFERENCES c1);
+  }
+
+  5.1   0 "DELETE FROM p1" {
+    CREATE TABLE p1(a PRIMARY KEY);
+    CREATE TABLE c1(b REFERENCES p1 ON DELETE CASCADE, c PRIMARY KEY);
+    CREATE TABLE cc1(d REFERENCES c1 ON DELETE CASCADE);
+  }
+  5.2   0 "DELETE FROM p1" {
+    CREATE TABLE p1(a PRIMARY KEY);
+    CREATE TABLE c1(b REFERENCES p1 ON DELETE CASCADE, c PRIMARY KEY);
+    CREATE TABLE cc1(d REFERENCES c1 ON DELETE SET NULL);
+  }
+  5.3   1 "DELETE FROM p1" {
+    CREATE TABLE p1(a PRIMARY KEY);
+    CREATE TABLE c1(b REFERENCES p1 ON DELETE CASCADE, c PRIMARY KEY);
+    CREATE TABLE cc1(d REFERENCES c1 ON DELETE SET DEFAULT);
+  }
+
+  6.1   1 "UPDATE p1 SET a = ?" {
+    CREATE TABLE p1(a PRIMARY KEY);
+    CREATE TABLE c1(b REFERENCES p1 ON UPDATE SET NULL, c);
+  }
+  6.2   0 "UPDATE OR IGNORE p1 SET a = ?" {
+    CREATE TABLE p1(a PRIMARY KEY);
+    CREATE TABLE c1(b REFERENCES p1 ON UPDATE SET NULL, c);
+  }
+  6.3   1 "UPDATE OR IGNORE p1 SET a = ?" {
+    CREATE TABLE p1(a PRIMARY KEY);
+    CREATE TABLE c1(b REFERENCES p1 ON UPDATE CASCADE, c);
+  }
+  6.4   1 "UPDATE OR IGNORE p1 SET a = ?" {
+    CREATE TABLE p1(a PRIMARY KEY);
+    CREATE TABLE c1(b NOT NULL REFERENCES p1 ON UPDATE SET NULL, c);
+  }
+
+} {
+  drop_all_tables
+  do_test 1.$tn {
+    execsql $schema
+    set stmt [sqlite3_prepare_v2 db $sql -1 dummy]
+    set ret [uses_stmt_journal $stmt]
+    sqlite3_finalize $stmt
+    set ret
+  } $use_stmt
+}
+
+#-------------------------------------------------------------------------
+# The following tests check that foreign key constaint counters are
+# correctly updated for any implicit DELETE operations that occur
+# when a REPLACE command is executed against a WITHOUT ROWID table
+# that has no triggers or auxiliary indexes.
+#
+reset_db
+do_execsql_test 2.1.0 {
+  PRAGMA foreign_keys = on;
+  CREATE TABLE p1(a PRIMARY KEY, b) WITHOUT ROWID;
+  CREATE TABLE c1(x REFERENCES p1 DEFERRABLE INITIALLY DEFERRED);
+
+  INSERT INTO p1 VALUES(1, 'one');
+  INSERT INTO p1 VALUES(2, 'two');
+  INSERT INTO c1 VALUES(1);
+  INSERT INTO c1 VALUES(2);
+}
+
+do_catchsql_test 2.1.2 {
+  BEGIN;
+    DELETE FROM p1 WHERE a=1;
+    INSERT OR REPLACE INTO p1 VALUES(2, 'two');
+  COMMIT;
+} {1 {FOREIGN KEY constraint failed}}
+
+reset_db
+do_execsql_test 2.2.0 {
+  PRAGMA foreign_keys = on;
+  CREATE TABLE p2(a PRIMARY KEY, b);
+  CREATE TABLE c2(
+    x PRIMARY KEY,
+    y REFERENCES p2 DEFERRABLE INITIALLY DEFERRED
+  ) WITHOUT ROWID;
+}
+
+do_catchsql_test 2.2.1 {
+  BEGIN;
+    INSERT INTO c2 VALUES(13, 13);
+    INSERT OR REPLACE INTO c2 VALUES(13, 13);
+    DELETE FROM c2;
+  COMMIT;
+} {0 {}}
+
+reset_db
+do_execsql_test 2.3.0 {
+  PRAGMA foreign_keys = on;
+  CREATE TABLE p3(a PRIMARY KEY, b) WITHOUT ROWID;
+  CREATE TABLE c3(x REFERENCES p3);
+
+  INSERT INTO p3 VALUES(1, 'one');
+  INSERT INTO p3 VALUES(2, 'two');
+  INSERT INTO c3 VALUES(1);
+  INSERT INTO c3 VALUES(2);
+
+  CREATE TRIGGER p3d AFTER DELETE ON p3 WHEN old.a=1 BEGIN
+    INSERT OR REPLACE INTO p3 VALUES(2, 'three');
+  END;
+}
+
+do_catchsql_test 2.3.1 {
+  DELETE FROM p3 WHERE a=1
+} {1 {FOREIGN KEY constraint failed}}
+
+
+do_execsql_test 3.0 {
+  PRAGMA foreign_keys=ON;
+  CREATE TABLE t2(
+    a PRIMARY KEY, b, c, d, e,
+      FOREIGN KEY(b, c) REFERENCES t2(d, e)
+  ) WITHOUT ROWID;
+  CREATE UNIQUE INDEX idx ON t2(d, e);
+
+  INSERT INTO t2 VALUES(1, 'one', 'one', 'one', 'one'); -- row is parent of self
+  INSERT INTO t2 VALUES(2, 'one', 'one', 'one', NULL);  -- parent is row 1
+}
+
+do_catchsql_test 3.1 {
+  DELETE FROM t2 WHERE a=1;
+} {1 {FOREIGN KEY constraint failed}}
+
+do_execsql_test 4.0 {
+  CREATE TABLE t1 (
+      c1 PRIMARY KEY,
+      c2 NUMERIC,
+      FOREIGN KEY(c1) REFERENCES t1(c2)
+      ) WITHOUT ROWID ;
+  CREATE INDEX t1c1 ON t1(c1);
+  CREATE UNIQUE INDEX t1c1unique ON t1(c2);
+}
+do_catchsql_test 4.1 {
+  INSERT OR REPLACE INTO t1 VALUES(10000, 20000);
+} {1 {FOREIGN KEY constraint failed}}
+do_execsql_test 4.2 {
+  INSERT OR REPLACE INTO t1 VALUES(20000, 20000);
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 5.0 {
+  PRAGMA foreign_keys = true;
+  CREATE TABLE parent(
+    p TEXT PRIMARY KEY
+  );
+  CREATE TABLE child(
+    c INTEGER UNIQUE, 
+    FOREIGN KEY(c) REFERENCES parent(p) DEFERRABLE INITIALLY DEFERRED
+  );
+  BEGIN;
+    INSERT INTO child VALUES(123);
+    INSERT INTO parent VALUES('123');
+  COMMIT;
+}
+do_execsql_test 5.1 {
+  PRAGMA integrity_check;
+} {ok}
+
+do_execsql_test 5.2 {
+  INSERT INTO parent VALUES(1200);
+  BEGIN;
+    INSERT INTO child VALUES(456);
+    UPDATE parent SET p = '456' WHERE p=1200;
+  COMMIT;
+}
+do_execsql_test 5.3 {
+  PRAGMA integrity_check;
+} {ok}
+
+#-------------------------------------------------------------------------
+reset_db
+forcedelete test.db2
+do_execsql_test 6.1 {
+  PRAGMA foreign_keys = on;
+  CREATE TABLE c1(b);
+  INSERT INTO c1 VALUES(123);
+}
+
+do_execsql_test 6.2 {
+  ATTACH 'test.db2' AS aux;
+  CREATE TABLE aux.p1(a INTEGER PRIMARY KEY);
+  CREATE TABLE aux.c1(b REFERENCES p1(a) ON DELETE RESTRICT);
+
+  INSERT INTO aux.p1 VALUES(123);
+}
+
+do_execsql_test 6.3 {
+  DELETE FROM aux.p1 WHERE a=123;
+}
+
+
+finish_test
diff --git a/test/fkey_malloc.test b/test/fkey_malloc.test
new file mode 100644
index 0000000000000000000000000000000000000000..382e6f67d95384ad09d871536453ae84fce887dc
--- /dev/null
+++ b/test/fkey_malloc.test
@@ -0,0 +1,134 @@
+# 2009 September 22
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !foreignkey||!trigger {
+  finish_test
+  return
+}
+source $testdir/malloc_common.tcl
+
+do_malloc_test fkey_malloc-1 -sqlprep {
+  PRAGMA foreign_keys = 1;
+  CREATE TABLE t1(a PRIMARY KEY, b UNIQUE);
+  CREATE TABLE t2(x REFERENCES t1 ON UPDATE CASCADE ON DELETE CASCADE);
+} -sqlbody {
+  INSERT INTO t1 VALUES('aaa', 1);
+  INSERT INTO t2 VALUES('aaa');
+  UPDATE t1 SET a = 'bbb';
+  DELETE FROM t1;
+  PRAGMA foreign_key_check;
+}
+
+do_malloc_test fkey_malloc-2 -sqlprep {
+  PRAGMA foreign_keys = 1;
+  CREATE TABLE t1(a, b, UNIQUE(a, b));
+} -sqlbody {
+  CREATE TABLE t2(x, y, 
+    FOREIGN KEY(x, y) REFERENCES t1(a, b) DEFERRABLE INITIALLY DEFERRED
+  );
+  BEGIN;
+    INSERT INTO t2 VALUES('a', 'b');
+    INSERT INTO t1 VALUES('a', 'b');
+    UPDATE t1 SET a = 'c';
+    DELETE FROM t2;
+    INSERT INTO t2 VALUES('d', 'b');
+    UPDATE t2 SET x = 'c';
+  COMMIT;
+}
+
+do_malloc_test fkey_malloc-3 -sqlprep {
+  PRAGMA foreign_keys = 1;
+  CREATE TABLE t1(x INTEGER PRIMARY KEY);
+  CREATE TABLE t2(y DEFAULT 14 REFERENCES t1(x) ON UPDATE SET DEFAULT);
+  CREATE TABLE t3(y REFERENCES t1 ON UPDATE SET NULL);
+  INSERT INTO t1 VALUES(13);
+  INSERT INTO t2 VALUES(13);
+  INSERT INTO t3 VALUES(13);
+} -sqlbody {
+  UPDATE t1 SET x = 14;
+}
+
+proc catch_fk_error {zSql} {
+  set rc [catch {db eval $zSql} msg]
+  if {$rc==0} {
+    return $msg
+  }
+  if {[string match {*foreign key*} $msg]} {
+    return ""
+  }
+  if {$msg eq "out of memory" 
+   || $msg eq "FOREIGN KEY constraint failed"
+   || $msg eq "constraint failed"
+  } {
+    error 1
+  }
+  error $msg
+}
+
+do_malloc_test fkey_malloc-4 -sqlprep {
+  PRAGMA foreign_keys = 1;
+  CREATE TABLE t1(x INTEGER PRIMARY KEY, y UNIQUE);
+  CREATE TABLE t2(z REFERENCES t1(x), a REFERENCES t1(y));
+  CREATE TABLE t3(x);
+  CREATE TABLE t4(z REFERENCES t3);
+  CREATE TABLE t5(x, y);
+  CREATE TABLE t6(z REFERENCES t5(x));
+  CREATE INDEX i51 ON t5(x);
+  CREATE INDEX i52 ON t5(y, x);
+  INSERT INTO t1 VALUES(1, 2);
+} -tclbody {
+  catch_fk_error {INSERT INTO t2 VALUES(1, 3)}
+  catch_fk_error {INSERT INTO t4 VALUES(2)}
+  catch_fk_error {INSERT INTO t6 VALUES(2)}
+}
+
+do_malloc_test fkey_malloc-5 -sqlprep {
+  PRAGMA foreign_keys = 1;
+  CREATE TABLE t1(x, y, PRIMARY KEY(x, y));
+  CREATE TABLE t2(a, b, FOREIGN KEY(a, b) REFERENCES t1 ON UPDATE CASCADE);
+  INSERT INTO t1 VALUES(1, 2);
+  INSERT INTO t2 VALUES(1, 2);
+} -sqlbody {
+  UPDATE t1 SET x = 5;
+}
+
+do_malloc_test fkey_malloc-6 -sqlprep {
+  PRAGMA foreign_keys = 1;
+  CREATE TABLE t1(
+    x PRIMARY KEY, 
+    y REFERENCES t1 ON DELETE RESTRICT ON UPDATE SET DEFAULT
+  );
+  INSERT INTO t1 VALUES('abc', 'abc');
+  INSERT INTO t1 VALUES('def', 'def');
+} -sqlbody {
+  INSERT INTO t1 VALUES('ghi', 'ghi');
+  DELETE FROM t1 WHERE rowid>1;
+  UPDATE t1 SET x='jkl', y='jkl';
+}
+
+do_malloc_test fkey_malloc-7 -sqlprep {
+  PRAGMA foreign_keys = 1;
+  CREATE TABLE x(a, b, PRIMARY KEY(a, b));
+  CREATE TABLE y(c, d,
+    FOREIGN KEY(d, c) REFERENCES x DEFERRABLE INITIALLY DEFERRED
+  );
+  CREATE TABLE z(e, f, FOREIGN KEY(e, f) REFERENCES x);
+} -sqlbody {
+  DROP TABLE y;
+  DROP TABLE x;
+}
+
+finish_test
diff --git a/test/fordelete.test b/test/fordelete.test
new file mode 100644
index 0000000000000000000000000000000000000000..39c0c3585e2a4b995b8cb2be790ad5e6c49c0dc6
--- /dev/null
+++ b/test/fordelete.test
@@ -0,0 +1,209 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the SELECT statement.
+#
+# $Id: select1.test,v 1.70 2009/05/28 01:00:56 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix fordelete
+
+# This function returns a list of the tables or indexes opened with 
+# OP_OpenWrite instructions when the SQL statement passed as the only 
+# argument is executed. If the OPFLAG_FORDELETE flag is specified on
+# the OP_OpenWrite, an asterix is appended to the object name. The list 
+# is sorted in [lsort] order before it is returned.
+#
+proc analyze_delete_program {sql} {
+  # Build a map from root page to table/index name.
+  db eval {
+    SELECT name, rootpage FROM sqlite_master
+  } {
+    set T($rootpage) $name
+  }
+  
+  # For each OpenWrite instruction generated for the proposed DELETE
+  # statement, add the following array entries:
+  #
+  #   $M(<cursor number>) -> <object name>
+  #   $O(<object name>)   -> "*" | ""
+  #
+  # The O() entry is set to "*" if the BTREE_FORDELETE flag is specified,
+  # or "" otherwise.
+  #
+  db eval "EXPLAIN $sql" R {
+    if {$R(opcode)=="OpenWrite"} {
+      set root $R(p2)
+      set csr $R(p1)
+      if {[info exists T($root)]} { set M($csr) $T($root) }
+
+      set obj $T($root)
+      set O($obj) ""
+      if {$R(p5) & 0x08} { 
+        set O($obj) *
+      } else {
+        set O($obj) ""
+      }
+    }
+  }
+
+  db eval "EXPLAIN $sql" R {
+    if {$R(opcode) == "Delete"} {
+      set csr $R(p1)
+      if {[info exists M($csr)]} {
+        set idxdelete [expr {("0x$R(p5)" & 0x04) ? 1 : 0}]
+        if {$idxdelete} {
+          append O($M($csr)) "+"
+        }
+      }
+    }
+  }
+
+  set res [list]
+  foreach {k v} [array get O] {
+    lappend res "${k}${v}"
+  }
+
+  lsort $res
+}
+
+proc do_adp_test {tn sql res} {
+  uplevel [list do_test $tn [list analyze_delete_program $sql] [list {*}$res]]
+}
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a PRIMARY KEY, b);
+}
+
+foreach {tn sql res} {
+  1 { DELETE FROM t1 WHERE a=?}          { sqlite_autoindex_t1_1  t1*+ }
+  2 { DELETE FROM t1 WHERE a=? AND b=? } { sqlite_autoindex_t1_1  t1+  }
+  3 { DELETE FROM t1 WHERE a>? }         { sqlite_autoindex_t1_1  t1*+ }
+  4 { DELETE FROM t1 WHERE rowid=? }     { sqlite_autoindex_t1_1*  t1  }
+} {
+  do_adp_test 1.$tn $sql $res
+}
+
+do_execsql_test 2.0 {
+  CREATE TABLE t2(a, b, c);
+  CREATE INDEX t2a ON t2(a);
+  CREATE INDEX t2b ON t2(b);
+  CREATE INDEX t2c ON t2(c);
+}
+foreach {tn sql res} {
+  1 { DELETE FROM t2 WHERE a=?}          { t2*+ t2a t2b* t2c* }
+  2 { DELETE FROM t2 WHERE a=? AND +b=?} { t2+ t2a t2b* t2c* }
+  3 { DELETE FROM t2 WHERE a=? OR b=?}   { t2 t2a* t2b* t2c* }
+  4 { DELETE FROM t2 WHERE +a=? }        { t2 t2a* t2b* t2c* }
+  5 { DELETE FROM t2 WHERE rowid=? }     { t2 t2a* t2b* t2c* }
+} {
+  do_adp_test 2.$tn $sql $res
+}
+
+#-------------------------------------------------------------------------
+# Test that a record that consists of the bytes:
+#
+#   0x01 0x00
+#
+# is interpreted by OP_Column as a vector of NULL values (assuming the 
+# default column values are NULL). Also test that:
+#
+#   0x00
+#
+# is handled in the same way.
+#
+do_execsql_test 3.0 {
+  CREATE TABLE x1(a INTEGER PRIMARY KEY, b, c, d);
+  CREATE TABLE x2(a INTEGER PRIMARY KEY, b, c, d);
+}
+
+do_test 3.1 {
+  set root [db one { SELECT rootpage FROM sqlite_master WHERE name = 'x1' }]
+  db eval { 
+    BEGIN IMMEDIATE;
+  }
+  set bt [btree_from_db db]
+  set csr [btree_cursor $bt $root 1]
+  btree_insert $csr 5 "\000"
+  btree_close_cursor $csr
+  db eval { COMMIT }
+
+  db eval {
+    SELECT * FROM x1;
+  }
+} {5 {} {} {}}
+
+do_test 3.2 {
+  set root [db one { SELECT rootpage FROM sqlite_master WHERE name = 'x2' }]
+  db eval { 
+    BEGIN IMMEDIATE;
+  }
+  set bt [btree_from_db db]
+  set csr [btree_cursor $bt $root 1]
+  btree_insert $csr 6 "\000"
+  btree_close_cursor $csr
+  db eval { COMMIT }
+
+  db eval {
+    SELECT * FROM x2;
+  }
+} {6 {} {} {}}
+
+
+#-------------------------------------------------------------------------
+#
+reset_db 
+do_execsql_test 4.0 {
+  CREATE TABLE log(x);
+  CREATE TABLE p1(one PRIMARY KEY, two);
+
+  CREATE TRIGGER tr_bd BEFORE DELETE ON p1 BEGIN
+    INSERT INTO log VALUES('delete');
+  END;
+  INSERT INTO p1 VALUES('a', 'A'), ('b', 'B'), ('c', 'C');
+  DELETE FROM p1 WHERE one = 'a';
+}
+
+reset_db
+do_execsql_test 4.1 {
+  BEGIN TRANSACTION;
+  CREATE TABLE tbl(a PRIMARY KEY, b, c);
+  CREATE TABLE log(a, b, c);
+  INSERT INTO "tbl" VALUES(1,2,3);
+  CREATE TRIGGER the_trigger BEFORE DELETE ON tbl BEGIN 
+    INSERT INTO log VALUES(1, 2,3);
+  END;
+  COMMIT;
+  DELETE FROM tbl WHERE a=1;
+}
+
+reset_db
+do_execsql_test 5.1 {
+  PRAGMA foreign_keys = 1;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+  CREATE TABLE t2(
+      c INTEGER PRIMARY KEY,
+      d INTEGER DEFAULT 1 REFERENCES t1 ON DELETE SET DEFAULT
+  );
+} {}
+do_execsql_test 5.2 {
+  INSERT INTO t1 VALUES(1, 'one');
+  INSERT INTO t1 VALUES(2, 'two');
+  INSERT INTO t2 VALUES(1, 2);
+  SELECT * FROM t2;
+} {1 2}
+do_execsql_test 5.3 {
+  DELETE FROM t1 WHERE a = 2;
+} {}
+
+
+finish_test
diff --git a/test/fork-test.c b/test/fork-test.c
new file mode 100644
index 0000000000000000000000000000000000000000..8a9b4b4afa2cc1884c33c37853f610cc5d585508
--- /dev/null
+++ b/test/fork-test.c
@@ -0,0 +1,310 @@
+/*
+** The program demonstrates how a child process created using fork()
+** can continue to use SQLite for a database that the parent had opened and
+** and was writing into when the fork() occurred.
+**
+** This program executes the following steps:
+**
+**   1.  Create a new database file.  Open it, and populate it.
+**   2.  Start a transaction and make changes.
+**       ^-- close the transaction prior to fork() if --commit-before-fork
+**   3.  Fork()
+**   4.  In the child, close the database connection.  Special procedures
+**       are needed to close the database connection in the child.  See the
+**       implementation below.
+**   5.  Commit the transaction in the parent.
+**   6.  Verify that the transaction committed in the parent.
+**   7.  In the child, after a delay to allow time for (5) and (6),
+**       open a new database connection and verify that the transaction
+**       committed by (5) is seen.
+**   8.  Add make further changes and commit them in the child, using the
+**       new database connection.
+**   9.  In the parent, after a delay to account for (8), verify that
+**       the new transaction added by (8) can be seen.
+**
+** Usage:
+**
+**    fork-test FILENAME [options]
+**
+** Options:
+**
+**    --wal                       Run the database in WAL mode
+**    --vfstrace                  Enable VFS tracing for debugging
+**    --commit-before-fork        COMMIT prior to the fork() in step 3
+**    --delay-after-4 N           Pause for N seconds after step 4
+**
+** How To Compile:
+**
+**   gcc -O0 -g -Wall -I$(SQLITESRC) \
+**         f1.c $(SQLITESRC)/ext/misc/vfstrace.c $(SQLITESRC/sqlite3.c \
+**         -ldl -lpthread -lm
+**
+** Test procedure:
+**
+**   (1)  Run "fork-test x1.db".  Verify no I/O errors occur and that
+**        both parent and child see all three rows in the t1 table.
+**
+**   (2)  Repeat (1) adding the --wal option.
+**
+**   (3)  Repeat (1) and (2) adding the --commit-before-fork option.
+**
+**   (4)  Repeat all prior steps adding the --delay-after-4 option with
+**        a timeout of 15 seconds or so.  Then, while both parent and child
+**        are paused, run the CLI against the x1.db database from a separate
+**        window and verify that all the correct file locks are still working
+**        correctly.
+**
+** Take-Aways:
+**
+**   *   If a process has open SQLite database connections when it fork()s,
+**       the child can call exec() and all it well.  Nothing special needs
+**       to happen.
+**
+**   *   If a process has open SQLite database connections when it fork()s,
+**       the child can do anything that does not involve using SQLite without
+**       causing problems in the parent.  No special actions are needed in
+**       the child.
+**
+**   *   If a process has open SQLite database connections when it fork()s,
+**       the child can call sqlite3_close() on those database connections
+**       as long as there were no pending write transactions when the fork()
+**       occurred.
+**
+**   *   If a process has open SQLite database connections that are in the
+**       middle of a write transaction and then the processes fork()s, the
+**       child process should close the database connections using the
+**       procedures demonstrated in Step 4 below before trying to do anything
+**       else with SQLite.
+**
+**   *   If a child process can safely close SQLite database connections that
+**       it inherited via fork() using the procedures shown in Step 4 below
+**       even if the database connections were not involved in a write
+**       transaction at the time of the fork().  The special procedures are
+**       required if a write transaction was active.  They are optional
+**       otherwise.  No harm results from using the special procedures when
+**       they are not necessary.
+**
+**   *   Child processes that use SQLite should open their own database
+**       connections.  They should not attempt to use a database connection
+**       that is inherited from the parent.
+*/
+#include <stdio.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <errno.h>
+#include "sqlite3.h"
+
+/*
+** Process ID of the parent
+*/
+static pid_t parentPid = 0;
+
+/*
+** Return either "parent" or "child", as appropriate.
+*/
+static const char *whoAmI(void){
+  return getpid()==parentPid ? "parent" : "child";
+}
+
+/*
+** This is an sqlite3_exec() callback routine that prints all results.
+*/
+static int execCallback(void *pNotUsed, int nCol, char **aVal, char **aCol){
+  int i;
+  const char *zWho = whoAmI();
+  for(i=0; i<nCol; i++){
+    const char *zVal = aVal[i];
+    const char *zCol = aCol[i];
+    if( zVal==0 ) zVal = "NULL";
+    if( zCol==0 ) zCol = "NULL";
+    printf("%s: %s = %s\n", zWho, zCol, zVal);
+    fflush(stdout);
+  }
+  return 0;
+}
+
+/*
+** Execute one or more SQL statements.
+*/
+static void sqlExec(sqlite3 *db, const char *zSql, int bCallback){
+  int rc;
+  char *zErr = 0;
+  printf("%s: %s\n", whoAmI(), zSql);
+  fflush(stdout);
+  rc = sqlite3_exec(db, zSql, bCallback ? execCallback : 0, 0, &zErr);
+  if( rc || zErr!=0 ){
+    printf("%s: %s: rc=%d: %s\n", 
+      whoAmI(), zSql, rc, zErr);
+    exit(1);
+  }
+}
+
+/*
+** Trace callback for the vfstrace extension.
+*/
+static int vfsTraceCallback(const char *zMsg, void *pNotUsed){
+  printf("%s: %s", whoAmI(), zMsg);
+  fflush(stdout);
+  return 0;
+}
+
+/* External VFS module provided by ext/misc/vfstrace.c
+*/
+extern int vfstrace_register(
+  const char *zTraceName,         // Name of the newly constructed VFS
+  const char *zOldVfsName,        // Name of the underlying VFS
+  int (*xOut)(const char*,void*), // Output routine.  ex: fputs
+  void *pOutArg,                  // 2nd argument to xOut.  ex: stderr
+  int makeDefault                 // Make the new VFS the default
+);
+
+
+int main(int argc, char **argv){
+  sqlite3 *db;
+  int rc;
+  int i;
+  int useWal = 0;
+  const char *zFilename = 0;
+  pid_t child = 0, c2;
+  int status;
+  int bCommitBeforeFork = 0;
+  int nDelayAfter4 = 0;
+
+  for(i=1; i<argc; i++){
+    const char *z = argv[i];
+    if( z[0]=='-' && z[1]=='-' && z[2]!=0 ) z++;
+    if( strcmp(z, "-wal")==0 ){
+      useWal = 1;
+    }else if( strcmp(z, "-commit-before-fork")==0 ){
+      bCommitBeforeFork = 1;
+    }else if( strcmp(z, "-delay-after-4")==0 && i+1<argc ){
+      i++;
+      nDelayAfter4 = atoi(argv[i]);
+    }else if( strcmp(z, "-vfstrace")==0 ){
+      vfstrace_register("vfstrace", 0, vfsTraceCallback, 0, 1);
+    }else if( z[0]=='-' ){
+      printf("unknown option: \"%s\"\n", argv[i]);
+      exit(1);
+    }else if( zFilename!=0 ){
+      printf("unknown argument: \"%s\"\n", argv[i]);
+      exit(1);
+    }else{
+      zFilename = argv[i];
+    }
+  }
+  if( zFilename==0 ){
+    printf("Usage: %s FILENAME\n", argv[0]);
+    return 1;
+  }
+
+  /**  Step 1 **/
+  printf("Step 1:\n");
+  parentPid = getpid();
+  unlink(zFilename);
+  rc = sqlite3_open(zFilename, &db);
+  if( rc ){
+    printf("sqlite3_open() returns %d\n", rc);
+    exit(1);
+  }
+  if( useWal ){
+    sqlExec(db, "PRAGMA journal_mode=WAL;", 0);
+  }
+  sqlExec(db, "CREATE TABLE t1(x);", 0);
+  sqlExec(db, "INSERT INTO t1 VALUES('First row');", 0);
+  sqlExec(db, "SELECT x FROM t1;", 1);
+
+  /**  Step 2 **/
+  printf("Step 2:\n");
+  sqlExec(db, "BEGIN IMMEDIATE;", 0);
+  sqlExec(db, "INSERT INTO t1 VALUES('Second row');", 0);
+  sqlExec(db, "SELECT x FROM t1;", 1);
+  if( bCommitBeforeFork ) sqlExec(db, "COMMIT", 0);
+
+  /**  Step 3 **/
+  printf("Step 3:\n"); fflush(stdout);
+  child = fork();
+  if( child!=0 ){
+    printf("Parent = %d\nChild = %d\n", getpid(), child);
+  }
+
+  /**  Step 4 **/
+  if( child==0 ){
+    int k;
+    printf("Step 4:\n"); fflush(stdout);
+
+    /***********************************************************************
+    ** The following block of code closes the database connection without
+    ** rolling back or changing any files on disk.  This is necessary to
+    ** preservce the pending transaction in the parent. 
+    */
+    for(k=0; 1/*exit-by-break*/; k++){
+      const char *zDbName = sqlite3_db_name(db, k);
+      sqlite3_file *pJrnl = 0;
+      if( k==1 ) continue;
+      if( zDbName==0 ) break;
+      sqlite3_file_control(db, zDbName, SQLITE_FCNTL_NULL_IO, 0);
+      sqlite3_file_control(db, zDbName, SQLITE_FCNTL_JOURNAL_POINTER, &pJrnl);
+      if( pJrnl && pJrnl->pMethods && pJrnl->pMethods->xFileControl ){
+        pJrnl->pMethods->xFileControl(pJrnl, SQLITE_FCNTL_NULL_IO, 0);
+      }
+    }    
+    sqlite3_close(db);
+    /*
+    ** End of special close procedures for SQLite database connections
+    ** inherited via fork().
+    ***********************************************************************/
+
+    printf("%s: database connection closed\n", whoAmI()); fflush(stdout);
+  }else{
+    /* Pause the parent briefly to give the child a chance to close its
+    ** database connection */
+    sleep(1);
+  }
+
+  if( nDelayAfter4>0 ){
+    printf("%s: Delay for %d seconds\n", whoAmI(), nDelayAfter4);
+    fflush(stdout);
+    sleep(nDelayAfter4);
+    printf("%s: Continue after %d delay\n", whoAmI(), nDelayAfter4);
+    fflush(stdout);
+  }
+
+  /**  Step 5 **/
+  if( child!=0 ){
+    printf("Step 5:\n");
+    if( !bCommitBeforeFork ) sqlExec(db, "COMMIT", 0);
+    sqlExec(db, "SELECT x FROM t1;", 1);
+  }    
+  
+
+  /** Step 7 **/
+  if( child==0 ){
+    sleep(2);
+    printf("Steps 7 and 8:\n");
+    rc = sqlite3_open(zFilename, &db);
+    if( rc ){
+      printf("Child unable to reopen the database.  rc = %d\n", rc);
+      exit(1);
+    }
+    sqlExec(db, "SELECT * FROM t1;", 1);
+
+    /** Step 8 **/
+    sqlExec(db, "INSERT INTO t1 VALUES('Third row');", 0);
+    sqlExec(db, "SELECT * FROM t1;", 1);
+    sleep(1);
+    return 0;
+  }
+  c2 = wait(&status);
+  printf("Process %d finished with status %d\n", c2, status);
+
+  /** Step 9 */
+  if( child!=0 ){
+    printf("Step 9:\n");
+    sqlExec(db, "SELECT * FROM t1;", 1);
+  }
+
+  return 0;
+}
diff --git a/test/format4.test b/test/format4.test
new file mode 100644
index 0000000000000000000000000000000000000000..a850ce2e4287828a7488e40c54595c9446e523c3
--- /dev/null
+++ b/test/format4.test
@@ -0,0 +1,66 @@
+# 2005 December 29
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that the new serial_type
+# values of 8 (integer 0) and 9 (integer 1) work correctly.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+#db eval {PRAGMA legacy_file_format=OFF}
+sqlite3_db_config db LEGACY_FILE_FORMAT 0
+
+# The size of the database depends on whether or not autovacuum
+# is enabled.
+#
+ifcapable autovacuum {
+  if {[db one {PRAGMA auto_vacuum}]} {
+    set small 3072
+    set large 5120
+  } else {
+    set small 2048
+    set large 4096
+  }
+} else {
+  set small 2048
+  set large 4096
+}
+
+do_test format4-1.1 {
+  execsql {
+    CREATE TABLE t1(x0,x1,x2,x3,x4,x5,x6,x7,x8,x9);
+    INSERT INTO t1 VALUES(0,0,0,0,0,0,0,0,0,0);
+    INSERT INTO t1 SELECT * FROM t1;
+    INSERT INTO t1 SELECT * FROM t1;
+    INSERT INTO t1 SELECT * FROM t1;
+    INSERT INTO t1 SELECT * FROM t1;
+    INSERT INTO t1 SELECT * FROM t1;
+    INSERT INTO t1 SELECT * FROM t1;
+  }
+  file size test.db
+} $small
+do_test format4-1.2 {
+  execsql {
+    UPDATE t1 SET x0=1, x1=1, x2=1, x3=1, x4=1, x5=1, x6=1, x7=1, x8=1, x9=1
+  }
+  file size test.db
+} $small
+do_test format4-1.3 {
+  execsql {
+    UPDATE t1 SET x0=2, x1=2, x2=2, x3=2, x4=2, x5=2, x6=2, x7=2, x8=2, x9=2
+  }
+  file size test.db
+} $large
+
+
+finish_test
diff --git a/test/fp-speed-1.c b/test/fp-speed-1.c
new file mode 100644
index 0000000000000000000000000000000000000000..cb4e0409c3a8ef6a82e5ff6d016b9dca645f1294
--- /dev/null
+++ b/test/fp-speed-1.c
@@ -0,0 +1,154 @@
+/*
+** Performance testing of floating-point binary-to-decimal conversion for
+** SQLite versus the standard library.
+**
+** To compile:
+**
+**    make sqlite3.c
+**    gcc -Os -c sqlite3.c
+**    gcc -I. -Os test/fp-speed-1.c sqlite3.o -ldl -lm -lpthread
+**
+** To run the test:
+**
+**    time ./a.out 0 10000000     <-- standard library
+**    time ./a.out 1 10000000     <-- SQLite
+*/
+static double aVal[] = {
+  -1.0163830486285643089e+063,
+  +0.0049243807391586981e-019,
+  +7.3818732407343994867e-095,
+  +7.0678595219225717143e+000,
+  +9.2807266319850025655e+120,
+  +5.8871050861933394663e+135,
+  -2.2998023621259662805e-168,
+  -1.5903581924910847482e+181,
+  +2.4313441816844978216e-001,
+  -3.8290987328945399091e-147,
+  +1.8787914062744001349e-009,
+  +0.7270653560487146653e-014,
+  +0.0639577697913183665e+107,
+  +5.2292338879315861930e-103,
+  +6.3747682672872231319e-021,
+  +8.6972339538329106984e-129,
+  -9.5074486051597691937e-026,
+  -8.6480257845368753018e-005,
+  -3.5657595775797470332e+017,
+  -7.8323106179731761351e+161,
+  +7.7813875274120800372e+077,
+  -1.8739718928360196596e-050,
+  +8.6898145915593357218e-051,
+  +6.0566766359877837871e+002,
+  +4.1703379217148160678e+199,
+  +2.1283871288746651560e+150,
+  -6.8395236083891810637e+128,
+  -6.2114299763939529155e-147,
+  -2.0753525742614637350e-149,
+  +5.8727459803944290257e-007,
+  +8.5888991062002101817e+010,
+  +6.8624461031355917632e+026,
+  -3.3053986756670905167e-075,
+  -4.3596843152763444945e-108,
+  +0.0834139520104099673e+098,
+  -8.8581986548904222440e-192,
+  -3.6622095428727698202e+038,
+  -6.6965852297025063260e+005,
+  +1.8204169347406488441e-054,
+  +6.5234508038649000384e-065,
+  +1.5923006018219011453e+083,
+  +1.7362555291656389480e+018,
+  +7.2875431976854785882e+160,
+  +1.2835880105958926748e-146,
+  +8.0516253320320819420e-113,
+  +6.6324633399381145440e-030,
+  -1.7126500070280062058e-149,
+  +1.6995738341583712335e+042,
+  +7.6048766923738663725e-112,
+  +0.6159117235449455043e-004,
+  +5.7544894355415943289e-135,
+  +8.2970228592690581890e-023,
+  -6.5531925360163067447e+020,
+  +5.8321334606187030050e+120,
+  +5.6557166509571891727e+095,
+  +0.3322789708438408704e-114,
+  -7.1210648776698686623e-050,
+  -9.6721262526706343301e+179,
+  -3.4583916571377395084e-106,
+  +4.7896094323214750793e-172,
+  -9.6926028040004137875e-056,
+  +7.0683848275381385483e-198,
+  -5.2970114182162961964e-007,
+  -4.4287021200905393271e-170,
+  +0.0728891155732808799e-189,
+  -9.1855462025879447465e+175,
+  +3.7294126234131007796e+015,
+  +2.6857421882792719241e+003,
+  -4.7070607333624685339e+039,
+  +7.2175820768279334274e+136,
+  -8.3678412534261163481e-115,
+  +2.2174844304241822163e+019,
+  +0.1949824588606861016e+112,
+  -9.7334052955672071912e+151,
+  -9.7793887766936999879e-142,
+  -5.1561164587416931561e+139,
+  -7.5048993577765174789e-022,
+  +7.3556076568687784568e+107,
+  -5.0681628575533599865e-144,
+  +1.5209705642027747811e+165,
+  -7.5989782535048296040e-101,
+  +1.3654137203389775871e-016,
+  -1.6441720554651372066e+087,
+  -4.9042433196141125923e+000,
+  -7.7063611961649130777e+118,
+  +0.1699427460930766201e+174,
+  +8.3374317849572216870e-145,
+  -5.2355330480469580072e+081,
+  -3.8510045942194147919e+141,
+  -6.3513622544326339887e-147,
+  +2.3869303484454428988e+049,
+  +3.8352715871620360268e-165,
+  -3.1263120493136887902e+035,
+  -5.5794797002556490823e+051,
+  -8.8109874479595604379e+142,
+  -4.3727360120203216922e+070,
+  -3.1109951189668539974e+170,
+  -9.4841878031704268232e+011,
+  -3.7398451668304407277e+067,
+  +4.8984042008915959963e-091,
+};
+#define NN (sizeof(aVal)/sizeof(aVal[0]))
+
+#include "sqlite3.h"
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(int argc, char **argv){
+  int i;
+  int cnt;
+  int fg;
+  char zBuf[1000];
+
+  if( argc!=3 ){
+    fprintf(stderr, "Usage:  %s FLAG COUNT\n", argv[0]);
+    return 1;
+  }
+  cnt = atoi(argv[2]);
+  fg = atoi(argv[1]);
+
+  switch( fg % 3 ){
+    case 0: {
+      printf("Doing %d calls to C-lib sprintf()\n", cnt);
+      for(i=0; i<cnt; i++){
+        sprintf(zBuf, "%.26g", aVal[i%NN]);
+      }
+      break;
+    }
+    case 1: {
+      printf("Doing %d calls to sqlite3_snprintf()\n", cnt);
+      for(i=0; i<cnt; i++){
+        sqlite3_snprintf(sizeof(zBuf), zBuf, "%!.26g", aVal[i%NN]);
+      }
+      break;
+    }
+  }
+  return 0;
+}
diff --git a/test/fpconv1.test b/test/fpconv1.test
new file mode 100644
index 0000000000000000000000000000000000000000..195fdf990488feaaa8cfb2057ec174a95ee44be8
--- /dev/null
+++ b/test/fpconv1.test
@@ -0,0 +1,44 @@
+# 2023-07-03
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+# This file contains a test that attempts to verify the claim that the
+# floatpoint-to-text conversion routines built into SQLite maintain at
+# least 15 significant digits of accuracy.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+if {[catch {load_static_extension db decimal} error]} {
+  puts "Skipping decimal tests, hit load error: $error"
+  finish_test; return
+}
+
+sqlite3_create_function db
+do_execsql_test fpconv1-1.0 {
+  WITH RECURSIVE
+       /* Number of random floating-point values to try.
+       ** On a circa 2016 x64 linux box, this test runs at
+       ** about 80000 cases per second  -------------------vvvvvv */
+    c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<100000),
+    fp(y) AS MATERIALIZED (
+       SELECT CAST( format('%+d.%019d0e%+03d',
+                           random()%10,abs(random()),random()%200) AS real)
+        FROM c
+    )
+  SELECT y FROM fp
+   WHERE -log10(abs(decimal_sub(dtostr(y,24),format('%!.24e',y))/y))<15.0;
+                     /* Number of digits of accuracy required -------^^^^ */
+} {}
+#  ^---- Expect a empty set as the result.  The output is all tested numbers
+#        that fail to preserve at least 15 significant digits of accuracy.
+
+finish_test
diff --git a/test/fts-9fd058691.test b/test/fts-9fd058691.test
new file mode 100644
index 0000000000000000000000000000000000000000..b228482d46bb84c7e8a620a9589e68bf8d43861c
--- /dev/null
+++ b/test/fts-9fd058691.test
@@ -0,0 +1,59 @@
+# 2011 October 13
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements regression tests for the FTS SQLite module.
+#
+# This file implements tests to verify that ticket [9fd058691] has been
+# fixed.  
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+set ::testprefix fts3-9fd058691
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE fts USING fts3( tags TEXT);
+  INSERT INTO fts (tags) VALUES ('tag1');
+  SELECT * FROM fts WHERE tags MATCH 'tag1';
+} {tag1}
+
+do_test 1.1 {
+  db close
+  sqlite3 db test.db
+  execsql {
+    UPDATE fts SET tags = 'tag1' WHERE rowid = 1;
+    SELECT * FROM fts WHERE tags MATCH 'tag1';
+  }
+} {tag1}
+
+db close
+forcedelete test.db
+sqlite3 db test.db
+
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE fts USING fts3(tags TEXT);
+  INSERT INTO fts (docid, tags) VALUES (1, 'tag1');
+  INSERT INTO fts (docid, tags) VALUES (2, NULL);
+  INSERT INTO fts (docid, tags) VALUES (3, 'three');
+} {}
+
+do_test 2.1 {
+  execsql {
+    UPDATE fts SET tags = 'two' WHERE rowid = 2;
+    SELECT * FROM fts WHERE tags MATCH 'two';
+  }
+} {two}
+
+finish_test
diff --git a/test/fts3.test b/test/fts3.test
new file mode 100644
index 0000000000000000000000000000000000000000..f42220bdc80ff8516468500c6644b6d7cb286d76
--- /dev/null
+++ b/test/fts3.test
@@ -0,0 +1,19 @@
+# 2007 November 23
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file runs all tests.
+#
+# $Id: fts3.test,v 1.2 2008/07/23 18:17:32 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/permutations.test
+
+ifcapable fts3 {
+  run_test_suite fts3
+}
+
+finish_test
diff --git a/test/fts3_common.tcl b/test/fts3_common.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..fcd3ca3e45eb85e290b6881535cff54f5cd5438f
--- /dev/null
+++ b/test/fts3_common.tcl
@@ -0,0 +1,420 @@
+# 2009 November 04
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains common code used the fts3 tests. At one point
+# equivalent functionality was implemented in C code. But it is easier
+# to use Tcl.
+#
+
+#-------------------------------------------------------------------------
+# INSTRUCTIONS
+#
+# The following commands are available:
+#
+#   fts3_build_db_1 N
+#     Using database handle [db] create an FTS4 table named t1 and populate
+#     it with N rows of data. N must be less than 10,000. Refer to the
+#     header comments above the proc implementation below for details.
+#
+#   fts3_build_db_2 N
+#     Using database handle [db] create an FTS4 table named t2 and populate
+#     it with N rows of data. N must be less than 100,000. Refer to the
+#     header comments above the proc implementation below for details.
+#
+#   fts3_integrity_check TBL
+#     TBL must be an FTS table in the database currently opened by handle
+#     [db]. This proc loads and tokenizes all documents within the table,
+#     then checks that the current contents of the FTS index matches the
+#     results.
+#
+#   fts3_terms TBL WHERE
+#     Todo.
+#
+#   fts3_doclist TBL TERM WHERE
+#     Todo.
+#
+#
+#
+
+ifcapable fts3 {
+  sqlite3_fts3_may_be_corrupt 0 
+}
+
+#-------------------------------------------------------------------------
+# USAGE: fts3_build_db_1 SWITCHES N
+#
+# Build a sample FTS table in the database opened by database connection 
+# [db]. The name of the new table is "t1".
+#
+proc fts3_build_db_1 {args} {
+
+  set default(-module) fts4
+
+  set nArg [llength $args]
+  if {($nArg%2)==0} {
+    error "wrong # args: should be \"fts3_build_db_1 ?switches? n\""
+  }
+
+  set n [lindex $args [expr $nArg-1]]
+  array set opts [array get default]
+  array set opts [lrange $args 0 [expr $nArg-2]]
+  foreach k [array names opts] {
+    if {0==[info exists default($k)]} { error "unknown option: $k" }
+  }
+
+  if {$n > 10000} {error "n must be <= 10000"}
+  db eval "CREATE VIRTUAL TABLE t1 USING $opts(-module) (x, y)"
+
+  set xwords [list zero one two three four five six seven eight nine ten]
+  set ywords [list alpha beta gamma delta epsilon zeta eta theta iota kappa]
+
+  for {set i 0} {$i < $n} {incr i} {
+    set x ""
+    set y ""
+
+    set x [list]
+    lappend x [lindex $xwords [expr ($i / 1000) % 10]]
+    lappend x [lindex $xwords [expr ($i / 100)  % 10]]
+    lappend x [lindex $xwords [expr ($i / 10)   % 10]]
+    lappend x [lindex $xwords [expr ($i / 1)   % 10]]
+
+    set y [list]
+    lappend y [lindex $ywords [expr ($i / 1000) % 10]]
+    lappend y [lindex $ywords [expr ($i / 100)  % 10]]
+    lappend y [lindex $ywords [expr ($i / 10)   % 10]]
+    lappend y [lindex $ywords [expr ($i / 1)   % 10]]
+
+    db eval { INSERT INTO t1(docid, x, y) VALUES($i, $x, $y) }
+  }
+}
+
+#-------------------------------------------------------------------------
+# USAGE: fts3_build_db_2 N ARGS
+#
+# Build a sample FTS table in the database opened by database connection 
+# [db]. The name of the new table is "t2".
+#
+proc fts3_build_db_2 {args} {
+
+  set default(-module) fts4
+  set default(-extra)   ""
+
+  set nArg [llength $args]
+  if {($nArg%2)==0} {
+    error "wrong # args: should be \"fts3_build_db_1 ?switches? n\""
+  }
+
+  set n [lindex $args [expr $nArg-1]]
+  array set opts [array get default]
+  array set opts [lrange $args 0 [expr $nArg-2]]
+  foreach k [array names opts] {
+    if {0==[info exists default($k)]} { error "unknown option: $k" }
+  }
+
+  if {$n > 100000} {error "n must be <= 100000"}
+
+  set sql "CREATE VIRTUAL TABLE t2 USING $opts(-module) (content"
+  if {$opts(-extra) != ""} {
+    append sql ", " $opts(-extra)
+  }
+  append sql ")"
+  db eval $sql
+
+  set chars [list a b c d e f g h  i j k l m n o p  q r s t u v w x  y z ""]
+
+  for {set i 0} {$i < $n} {incr i} {
+    set word ""
+    set nChar [llength $chars]
+    append word [lindex $chars [expr {($i / 1)   % $nChar}]]
+    append word [lindex $chars [expr {($i / $nChar)  % $nChar}]]
+    append word [lindex $chars [expr {($i / ($nChar*$nChar)) % $nChar}]]
+
+    db eval { INSERT INTO t2(docid, content) VALUES($i, $word) }
+  }
+}
+
+#-------------------------------------------------------------------------
+# USAGE: fts3_integrity_check TBL
+#
+# This proc is used to verify that the full-text index is consistent with
+# the contents of the fts3 table. In other words, it checks that the
+# data in the %_contents table matches that in the %_segdir and %_segments 
+# tables.
+#
+# This is not an efficient procedure. It uses a lot of memory and a lot
+# of CPU. But it is better than not checking at all.
+#
+# The procedure is:
+#
+#   1) Read the entire full-text index from the %_segdir and %_segments
+#      tables into memory. For each entry in the index, the following is
+#      done:
+#
+#          set C($iDocid,$iCol,$iPosition) $zTerm
+#
+#   2) Iterate through each column of each row of the %_content table. 
+#      Tokenize all documents, and check that for each token there is
+#      a corresponding entry in the $C array. After checking a token,
+#      [unset] the $C array entry.
+#
+#   3) Check that array $C is now empty.
+#      
+#
+proc fts3_integrity_check {tbl} {
+
+  fts3_read2 $tbl 1 A
+
+  foreach zTerm [array names A] {
+    #puts $zTerm
+    foreach doclist $A($zTerm) {
+      set docid 0
+      while {[string length $doclist]>0} {
+        set iCol 0
+        set iPos 0
+        set lPos [list]
+        set lCol [list]
+
+        # First varint of a doclist-entry is the docid. Delta-compressed
+        # with respect to the docid of the previous entry.
+        #
+        incr docid [gobble_varint doclist]
+        if {[info exists D($zTerm,$docid)]} {
+          while {[set iDelta [gobble_varint doclist]] != 0} {}
+          continue
+        }
+        set D($zTerm,$docid) 1
+
+        # Gobble varints until the 0x00 that terminates the doclist-entry
+        # is found.
+        while {[set iDelta [gobble_varint doclist]] > 0} {
+          if {$iDelta == 1} {
+            set iCol [gobble_varint doclist]
+            set iPos 0
+          } else {
+            incr iPos $iDelta
+            incr iPos -2
+            set C($docid,$iCol,$iPos) $zTerm
+          }
+        }
+      }
+    }
+  }
+
+  foreach key [array names C] {
+    #puts "$key -> $C($key)"
+  }
+
+
+  db eval "SELECT * FROM ${tbl}_content" E {
+    set iCol 0
+    set iDoc $E(docid)
+    foreach col [lrange $E(*) 1 end] {
+      set c $E($col)
+      set sql {SELECT fts3_tokenizer_test('simple', $c)}
+
+      foreach {pos term dummy} [db one $sql] {
+        if {![info exists C($iDoc,$iCol,$pos)]} {
+          set es "Error at docid=$iDoc col=$iCol pos=$pos. Index is missing"
+          lappend errors $es
+        } else {
+          if {[string compare $C($iDoc,$iCol,$pos) $term]} {
+            set    es "Error at docid=$iDoc col=$iCol pos=$pos. Index "
+            append es "has \"$C($iDoc,$iCol,$pos)\", document has \"$term\""
+            lappend errors $es
+          }
+          unset C($iDoc,$iCol,$pos)
+        }
+      }
+      incr iCol
+    }
+  }
+
+  foreach c [array names C] {
+    lappend errors "Bad index entry: $c -> $C($c)"
+  }
+
+  if {[info exists errors]} { return [join $errors "\n"] }
+  return "ok"
+}
+
+# USAGE: fts3_terms TBL WHERE
+#
+# Argument TBL must be the name of an FTS3 table. Argument WHERE is an
+# SQL expression that will be used as the WHERE clause when scanning
+# the %_segdir table. As in the following query:
+#
+#   "SELECT * FROM ${TBL}_segdir WHERE ${WHERE}"
+#
+# This function returns a list of all terms present in the segments
+# selected by the statement above.
+#
+proc fts3_terms {tbl where} {
+  fts3_read $tbl $where a
+  return [lsort [array names a]]
+}
+
+
+# USAGE: fts3_doclist TBL TERM WHERE
+#
+# Argument TBL must be the name of an FTS3 table. TERM is a term that may
+# or may not be present in the table. Argument WHERE is used to select a 
+# subset of the b-tree segments in the associated full-text index as 
+# described above for [fts3_terms].
+#
+# This function returns the results of merging the doclists associated
+# with TERM in the selected segments. Each doclist is an element of the
+# returned list. Each doclist is formatted as follows:
+#
+#   [$docid ?$col[$off1 $off2...]?...]
+#
+# The formatting is odd for a Tcl command in order to be compatible with
+# the original C-language implementation. If argument WHERE is "1", then 
+# any empty doclists are omitted from the returned list.
+#
+proc fts3_doclist {tbl term where} {
+  fts3_read $tbl $where a
+
+
+  foreach doclist $a($term) {
+    set docid 0
+
+    while {[string length $doclist]>0} {
+      set iCol 0
+      set iPos 0
+      set lPos [list]
+      set lCol [list]
+      incr docid [gobble_varint doclist]
+  
+      while {[set iDelta [gobble_varint doclist]] > 0} {
+        if {$iDelta == 1} {
+          lappend lCol [list $iCol $lPos]
+          set iPos 0
+          set lPos [list]
+          set iCol [gobble_varint doclist]
+        } else {
+          incr iPos $iDelta
+          incr iPos -2
+          lappend lPos $iPos
+        }
+      }
+  
+      if {[llength $lPos]>0} {
+        lappend lCol [list $iCol $lPos]
+      }
+  
+      if {$where != "1" || [llength $lCol]>0} {
+        set ret($docid) $lCol
+      } else {
+        unset -nocomplain ret($docid)
+      }
+    }
+  }
+
+  set lDoc [list]
+  foreach docid [lsort -integer [array names ret]] {
+    set lCol [list]
+    set cols ""
+    foreach col $ret($docid) {
+      foreach {iCol lPos} $col {}
+      append cols " $iCol\[[join $lPos { }]\]"
+    }
+    lappend lDoc "\[${docid}${cols}\]"
+  }
+
+  join $lDoc " "
+}
+
+###########################################################################
+
+proc gobble_varint {varname} {
+  upvar $varname blob
+  set n [read_fts3varint $blob ret]
+  set blob [string range $blob $n end]
+  return $ret
+}
+proc gobble_string {varname nLength} {
+  upvar $varname blob
+  set ret [string range $blob 0 [expr $nLength-1]]
+  set blob [string range $blob $nLength end]
+  return $ret
+}
+
+# The argument is a blob of data representing an FTS3 segment leaf. 
+# Return a list consisting of alternating terms (strings) and doclists
+# (blobs of data).
+#
+proc fts3_readleaf {blob} {
+  set zPrev ""
+  set terms [list]
+
+  while {[string length $blob] > 0} {
+    set nPrefix [gobble_varint blob]
+    set nSuffix [gobble_varint blob]
+
+    set zTerm [string range $zPrev 0 [expr $nPrefix-1]]
+    append zTerm [gobble_string blob $nSuffix]
+    set nDoclist [gobble_varint blob]
+    set doclist [gobble_string blob $nDoclist]
+
+    lappend terms $zTerm $doclist
+    set zPrev $zTerm
+  }
+
+  return $terms
+}
+
+proc fts3_read2 {tbl where varname} {
+  upvar $varname a
+  array unset a
+  db eval " SELECT start_block, leaves_end_block, root 
+            FROM ${tbl}_segdir WHERE $where
+            ORDER BY level ASC, idx DESC
+  " {
+    set c 0
+    binary scan $root c c
+    if {$c==0} {
+      foreach {t d} [fts3_readleaf $root] { lappend a($t) $d }
+    } else {
+      db eval " SELECT block 
+                FROM ${tbl}_segments 
+                WHERE blockid>=$start_block AND blockid<=$leaves_end_block
+                ORDER BY blockid
+      " {
+        foreach {t d} [fts3_readleaf $block] { lappend a($t) $d }
+      }
+    }
+  }
+}
+
+proc fts3_read {tbl where varname} {
+  upvar $varname a
+  array unset a
+  db eval " SELECT start_block, leaves_end_block, root 
+            FROM ${tbl}_segdir WHERE $where
+            ORDER BY level DESC, idx ASC
+  " {
+    if {$start_block == 0} {
+      foreach {t d} [fts3_readleaf $root] { lappend a($t) $d }
+    } else {
+      db eval " SELECT block 
+                FROM ${tbl}_segments 
+                WHERE blockid>=$start_block AND blockid<$leaves_end_block
+                ORDER BY blockid
+      " {
+        foreach {t d} [fts3_readleaf $block] { lappend a($t) $d }
+
+      }
+    }
+  }
+}
+
+##########################################################################
+
diff --git a/test/fts3aa.test b/test/fts3aa.test
new file mode 100644
index 0000000000000000000000000000000000000000..cb1bde74a46650c0381292ae8af41d20ef661d44
--- /dev/null
+++ b/test/fts3aa.test
@@ -0,0 +1,265 @@
+# 2006 September 9
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS3 module.
+#
+# $Id: fts3aa.test,v 1.1 2007/08/20 17:38:42 shess Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix fts3aa
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+# Construct a full-text search table containing five keywords:
+# one, two, three, four, and five, in various combinations.  The
+# rowid for each will be a bitmask for the elements it contains.
+#
+db eval {
+  CREATE VIRTUAL TABLE t1 USING fts3(content);
+  INSERT INTO t1(content) VALUES('one');
+  INSERT INTO t1(content) VALUES('two');
+  INSERT INTO t1(content) VALUES('one two');
+  INSERT INTO t1(content) VALUES('three');
+  INSERT INTO t1(content) VALUES('one three');
+  INSERT INTO t1(content) VALUES('two three');
+  INSERT INTO t1(content) VALUES('one two three');
+  INSERT INTO t1(content) VALUES('four');
+  INSERT INTO t1(content) VALUES('one four');
+  INSERT INTO t1(content) VALUES('two four');
+  INSERT INTO t1(content) VALUES('one two four');
+  INSERT INTO t1(content) VALUES('three four');
+  INSERT INTO t1(content) VALUES('one three four');
+  INSERT INTO t1(content) VALUES('two three four');
+  INSERT INTO t1(content) VALUES('one two three four');
+  INSERT INTO t1(content) VALUES('five');
+  INSERT INTO t1(content) VALUES('one five');
+  INSERT INTO t1(content) VALUES('two five');
+  INSERT INTO t1(content) VALUES('one two five');
+  INSERT INTO t1(content) VALUES('three five');
+  INSERT INTO t1(content) VALUES('one three five');
+  INSERT INTO t1(content) VALUES('two three five');
+  INSERT INTO t1(content) VALUES('one two three five');
+  INSERT INTO t1(content) VALUES('four five');
+  INSERT INTO t1(content) VALUES('one four five');
+  INSERT INTO t1(content) VALUES('two four five');
+  INSERT INTO t1(content) VALUES('one two four five');
+  INSERT INTO t1(content) VALUES('three four five');
+  INSERT INTO t1(content) VALUES('one three four five');
+  INSERT INTO t1(content) VALUES('two three four five');
+  INSERT INTO t1(content) VALUES('one two three four five');
+}
+
+do_test fts3aa-1.1 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH 'one'}
+} {1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31}
+do_test fts3aa-1.2 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH 'one two'}
+} {3 7 11 15 19 23 27 31}
+do_test fts3aa-1.3 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH 'two one'}
+} {3 7 11 15 19 23 27 31}
+do_test fts3aa-1.4 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH 'one two three'}
+} {7 15 23 31}
+do_test fts3aa-1.5 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH 'one three two'}
+} {7 15 23 31}
+do_test fts3aa-1.6 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH 'two three one'}
+} {7 15 23 31}
+do_test fts3aa-1.7 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH 'two one three'}
+} {7 15 23 31}
+do_test fts3aa-1.8 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH 'three one two'}
+} {7 15 23 31}
+do_test fts3aa-1.9 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH 'three two one'}
+} {7 15 23 31}
+do_test fts3aa-1.10 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH 'one two THREE'}
+} {7 15 23 31}
+do_test fts3aa-1.11 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH '  ONE    Two   three  '}
+} {7 15 23 31}
+
+do_test fts3aa-2.1 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH '"one"'}
+} {1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31}
+do_test fts3aa-2.2 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH '"one two"'}
+} {3 7 11 15 19 23 27 31}
+do_test fts3aa-2.3 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH '"two one"'}
+} {}
+do_test fts3aa-2.4 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH '"one two three"'}
+} {7 15 23 31}
+do_test fts3aa-2.5 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH '"one three two"'}
+} {}
+do_test fts3aa-2.6 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH '"one two three four"'}
+} {15 31}
+do_test fts3aa-2.7 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH '"one three two four"'}
+} {}
+do_test fts3aa-2.8 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH '"one three five"'}
+} {21}
+do_test fts3aa-2.9 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH '"one three" five'}
+} {21 29}
+do_test fts3aa-2.10 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH 'five "one three"'}
+} {21 29}
+do_test fts3aa-2.11 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH 'five "one three" four'}
+} {29}
+do_test fts3aa-2.12 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH 'five four "one three"'}
+} {29}
+do_test fts3aa-2.13 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH '"one three" four five'}
+} {29}
+
+do_test fts3aa-3.1 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH 'one'}
+} {1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31}
+do_test fts3aa-3.2 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH 'one -two'}
+} {1 5 9 13 17 21 25 29}
+do_test fts3aa-3.3 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH '-two one'}
+} {1 5 9 13 17 21 25 29}
+
+do_test fts3aa-4.1 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH 'one OR two'}
+} {1 2 3 5 6 7 9 10 11 13 14 15 17 18 19 21 22 23 25 26 27 29 30 31}
+do_test fts3aa-4.2 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH '"one two" OR three'}
+} {3 4 5 6 7 11 12 13 14 15 19 20 21 22 23 27 28 29 30 31}
+do_test fts3aa-4.3 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH 'three OR "one two"'}
+} {3 4 5 6 7 11 12 13 14 15 19 20 21 22 23 27 28 29 30 31}
+do_test fts3aa-4.4 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH 'one two OR three'}
+} {3 5 7 11 13 15 19 21 23 27 29 31}
+do_test fts3aa-4.5 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH 'three OR two one'}
+} {3 5 7 11 13 15 19 21 23 27 29 31}
+do_test fts3aa-4.6 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH 'one two OR three OR four'}
+} {3 5 7 9 11 13 15 19 21 23 25 27 29 31}
+do_test fts3aa-4.7 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH 'two OR three OR four one'}
+} {3 5 7 9 11 13 15 19 21 23 25 27 29 31}
+
+# Test the ability to handle NULL content
+#
+do_test fts3aa-5.1 {
+  execsql {INSERT INTO t1(content) VALUES(NULL)}
+} {}
+do_test fts3aa-5.2 {
+  set rowid [db last_insert_rowid]
+  execsql {SELECT content FROM t1 WHERE rowid=$rowid}
+} {{}}
+do_test fts3aa-5.3 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH NULL}
+} {}
+
+# Test the ability to handle non-positive rowids
+#
+do_test fts3aa-6.0 {
+  execsql {INSERT INTO t1(rowid, content) VALUES(0, 'four five')}
+} {}
+do_test fts3aa-6.1 {
+  execsql {SELECT content FROM t1 WHERE rowid = 0}
+} {{four five}}
+do_test fts3aa-6.2 {
+  execsql {INSERT INTO t1(rowid, content) VALUES(-1, 'three four')}
+} {}
+do_test fts3aa-6.3 {
+  execsql {SELECT content FROM t1 WHERE rowid = -1}
+} {{three four}}
+do_test fts3aa-6.4 {
+  execsql {SELECT rowid FROM t1 WHERE t1 MATCH 'four'}
+} {-1 0 8 9 10 11 12 13 14 15 24 25 26 27 28 29 30 31}
+
+# Test creation of FTS3 and FTS4 tables with columns that contain
+# an "=" character.
+#
+do_execsql_test fts3aa-7.1 {
+  CREATE VIRTUAL TABLE t2 USING fts3(xyz=abc);
+  SELECT xyz FROM t2;
+} {}
+do_catchsql_test fts3aa-7.2 {
+  CREATE VIRTUAL TABLE t3 USING fts4(xyz=abc);
+} {1 {unrecognized parameter: xyz=abc}}
+do_catchsql_test fts3aa-7.3 {
+  CREATE VIRTUAL TABLE t3 USING fts4(xyz = abc);
+} {1 {unrecognized parameter: xyz = abc}}
+
+do_execsql_test fts3aa-7.4 {
+  CREATE VIRTUAL TABLE t3 USING fts3(tokenize=simple, tokenize=simple);
+  SELECT tokenize FROM t3;
+} {}
+do_catchsql_test fts3aa-7.5 {
+  CREATE VIRTUAL TABLE t4 USING fts4(tokenize=simple, tokenize=simple);
+} {1 {unrecognized parameter: tokenize=simple}}
+
+do_execsql_test 8.0 {
+  CREATE VIRTUAL TABLE t0 USING fts4(order=desc);
+  BEGIN;
+  INSERT INTO t0(rowid, content) VALUES(1, 'abc');
+  UPDATE t0 SET docid=5 WHERE docid=1;
+  INSERT INTO t0(rowid, content) VALUES(6, 'abc');
+}
+do_execsql_test 8.1 {
+  SELECT docid FROM t0 WHERE t0 MATCH 'abc';
+} {6 5}
+do_execsql_test 8.2 {
+  SELECT docid FROM t0 WHERE t0 MATCH '"abc abc"';
+} {}
+do_execsql_test 8.3 { COMMIT }
+do_execsql_test 8.4 {
+  SELECT docid FROM t0 WHERE t0 MATCH 'abc';
+} {6 5}
+do_execsql_test 8.5 {
+  SELECT docid FROM t0 WHERE t0 MATCH '"abc abc"';
+} {}
+
+do_execsql_test 9.1 {
+  CREATE VIRTUAL TABLE t9 USING fts4(a, "", '---');
+}
+do_execsql_test 9.2 {
+  CREATE VIRTUAL TABLE t10 USING fts3(<, b, c);
+}
+
+do_execsql_test 10.0 {
+  CREATE VIRTUAL TABLE z1 USING fts3;
+  INSERT INTO z1 VALUES('one two three'),('four one five'),('six two five');
+  CREATE TRIGGER z1r1 AFTER DELETE ON z1_content BEGIN
+    DELETE FROM z1;
+  END;
+}
+do_catchsql_test 10.1 {
+  DELETE FROM z1;
+} {1 {SQL logic error}}
+
+expand_all_sql db
+finish_test
diff --git a/test/fts3ab.test b/test/fts3ab.test
new file mode 100644
index 0000000000000000000000000000000000000000..86124f78c4b44dac97d19106546321e47b4c3d27
--- /dev/null
+++ b/test/fts3ab.test
@@ -0,0 +1,147 @@
+# 2006 September 13
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS3 module.
+#
+# $Id: fts3ab.test,v 1.1 2007/08/20 17:38:42 shess Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+# Fill the full-text index "t1" with phrases in english, spanish,
+# and german.  For the i-th row, fill in the names for the bits
+# that are set in the value of i.  The least significant bit is
+# 1.  For example,  the value 5 is 101 in binary which will be
+# converted to "one three" in english.
+#
+proc fill_multilanguage_fulltext_t1 {} {
+  set english {one two three four five}
+  set spanish {un dos tres cuatro cinco}
+  set german {eine zwei drei vier funf}
+  
+  for {set i 1} {$i<=31} {incr i} {
+    set cmd "INSERT INTO t1 VALUES"
+    set vset {}
+    foreach lang {english spanish german} {
+      set words {}
+      for {set j 0; set k 1} {$j<5} {incr j; incr k $k} {
+        if {$k&$i} {lappend words [lindex [set $lang] $j]}
+      }
+      lappend vset "'$words'"
+    }
+    set sql "INSERT INTO t1(english,spanish,german) VALUES([join $vset ,])"
+    # puts $sql
+    db eval $sql
+  }
+}
+
+# Construct a full-text search table containing five keywords:
+# one, two, three, four, and five, in various combinations.  The
+# rowid for each will be a bitmask for the elements it contains.
+#
+db eval {
+  CREATE VIRTUAL TABLE t1 USING fts3(english,spanish,german);
+}
+fill_multilanguage_fulltext_t1
+
+do_test fts3ab-1.1 {
+  execsql {SELECT rowid FROM t1 WHERE english MATCH 'one'}
+} {1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31}
+do_test fts3ab-1.2 {
+  execsql {SELECT rowid FROM t1 WHERE spanish MATCH 'one'}
+} {}
+do_test fts3ab-1.3 {
+  execsql {SELECT rowid FROM t1 WHERE german MATCH 'one'}
+} {}
+do_test fts3ab-1.4 {
+  execsql {SELECT rowid FROM t1 WHERE t1 MATCH 'one'}
+} {1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31}
+do_test fts3ab-1.5 {
+  execsql {SELECT rowid FROM t1 WHERE t1 MATCH 'one dos drei'}
+} {7 15 23 31}
+do_test fts3ab-1.6 {
+  execsql {SELECT english, spanish, german FROM t1 WHERE rowid=1}
+} {one un eine}
+do_test fts3ab-1.7 {
+  execsql {SELECT rowid FROM t1 WHERE t1 MATCH '"one un"'}
+} {}
+
+do_test fts3ab-2.1 {
+  execsql {
+    CREATE VIRTUAL TABLE t2 USING fts3(from,to);
+    INSERT INTO t2([from],[to]) VALUES ('one two three', 'four five six');
+    SELECT [from], [to] FROM t2
+  }
+} {{one two three} {four five six}}
+
+
+# Compute an SQL string that contains the words one, two, three,... to
+# describe bits set in the value $i.  Only the lower 5 bits are examined.
+#
+proc wordset {i} {
+  set x {}
+  for {set j 0; set k 1} {$j<5} {incr j; incr k $k} {
+    if {$k&$i} {lappend x [lindex {one two three four five} $j]}
+  }
+  return '$x'
+}
+
+# Create a new FTS table with three columns:
+#
+#    norm:      words for the bits of rowid
+#    plusone:   words for the bits of rowid+1
+#    invert:    words for the bits of ~rowid
+#
+db eval {
+   CREATE VIRTUAL TABLE t4 USING fts3([norm],'plusone',"invert");
+}
+for {set i 1} {$i<=15} {incr i} {
+  set vset [list [wordset $i] [wordset [expr {$i+1}]] [wordset [expr {~$i}]]]
+  db eval "INSERT INTO t4(norm,plusone,invert) VALUES([join $vset ,]);"
+}
+
+do_test fts3ab-4.1 {
+  execsql {SELECT rowid FROM t4 WHERE t4 MATCH 'norm:one'}
+} {1 3 5 7 9 11 13 15}
+do_test fts3ab-4.2 {
+  execsql {SELECT rowid FROM t4 WHERE norm MATCH 'one'}
+} {1 3 5 7 9 11 13 15}
+do_test fts3ab-4.3 {
+  execsql {SELECT rowid FROM t4 WHERE t4 MATCH 'one'}
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15}
+do_test fts3ab-4.4 {
+  execsql {SELECT rowid FROM t4 WHERE t4 MATCH 'plusone:one'}
+} {2 4 6 8 10 12 14}
+do_test fts3ab-4.5 {
+  execsql {SELECT rowid FROM t4 WHERE plusone MATCH 'one'}
+} {2 4 6 8 10 12 14}
+do_test fts3ab-4.6 {
+  execsql {SELECT rowid FROM t4 WHERE t4 MATCH 'norm:one plusone:two'}
+} {1 5 9 13}
+do_test fts3ab-4.7 {
+  execsql {SELECT rowid FROM t4 WHERE t4 MATCH 'norm:one two'}
+} {1 3 5 7 9 11 13 15}
+do_test fts3ab-4.8 {
+  execsql {SELECT rowid FROM t4 WHERE t4 MATCH 'plusone:two norm:one'}
+} {1 5 9 13}
+do_test fts3ab-4.9 {
+  execsql {SELECT rowid FROM t4 WHERE t4 MATCH 'two norm:one'}
+} {1 3 5 7 9 11 13 15}
+
+
+finish_test
diff --git a/test/fts3ac.test b/test/fts3ac.test
new file mode 100644
index 0000000000000000000000000000000000000000..84da924b6e8aee8613e17c842ffd1b68646f1ceb
--- /dev/null
+++ b/test/fts3ac.test
@@ -0,0 +1,1219 @@
+# 2006 September 14
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS3 module.
+#
+# $Id: fts3ac.test,v 1.1 2007/08/20 17:38:42 shess Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+# Create a table of sample email data.   The data comes from email
+# archives of Enron executives that was published as part of the
+# litigation against that company.
+#
+do_test fts3ac-1.1 {
+  db eval {
+    CREATE VIRTUAL TABLE email USING fts3([from],[to],subject,body);
+    BEGIN TRANSACTION;
+INSERT INTO email([from],[to],subject,body) VALUES('savita.puthigai@enron.com', 'traders.eol@enron.com, traders.eol@enron.com', 'EnronOnline- Change to Autohedge', 'Effective Monday, October 22, 2001 the following changes will be made to the Autohedge functionality on EnronOnline.
+
+The volume on the hedge will now respect the minimum volume and volume increment settings on the parent product. See rules below: 
+
+?	If the transaction volume on the child is less than half of the parent''s minimum volume no hedge will occur.
+?	If the transaction volume on the child is more than half the parent''s minimum volume but less than half the volume increment on the parent, the hedge will volume will be the parent''s minimum volume.
+?	For all other volumes, the same rounding rules will apply based on the volume increment on the parent product.
+
+Please see example below:
+
+Parent''s Settings:
+Minimum: 	5000
+Increment:  1000
+
+Volume on Autohedge transaction			Volume Hedged
+1      - 2499							0
+2500 - 5499							5000
+5500 - 6499							6000');
+INSERT INTO email([from],[to],subject,body) VALUES('dana.davis@enron.com', 'laynie.east@enron.com, lisa.king@enron.com, lisa.best@enron.com,', 'Leaving Early', 'FYI:  
+If it''s ok with everyone''s needs, I would like to leave @4pm. If you think 
+you will need my assistance past the 4 o''clock hour just let me know;  I''ll 
+be more than willing to stay.');
+INSERT INTO email([from],[to],subject,body) VALUES('enron_update@concureworkplace.com', 'louise.kitchen@enron.com', '<<Concur Expense Document>> - CC02.06.02', 'The following expense report is ready for approval:
+
+Employee Name: Christopher F. Calger
+Status last changed by: Mollie E. Gustafson Ms
+Expense Report Name: CC02.06.02
+Report Total: $3,972.93
+Amount Due Employee: $3,972.93
+
+
+To approve this expense report, click on the following link for Concur Expense.
+http://expensexms.enron.com');
+INSERT INTO email([from],[to],subject,body) VALUES('jeff.duff@enron.com', 'julie.johnson@enron.com', 'Work request', 'Julie,
+
+Could you print off the current work request report by 1:30 today?
+
+Gentlemen,
+
+I''d like to review this today at 1:30 in our office.  Also, could you provide 
+me with your activity reports so I can have Julie enter this information.
+
+JD');
+INSERT INTO email([from],[to],subject,body) VALUES('v.weldon@enron.com', 'gary.l.carrier@usa.dupont.com, scott.joyce@bankofamerica.com', 'Enron News', 'This could turn into something big.... 
+http://biz.yahoo.com/rf/010129/n29305829.html');
+INSERT INTO email([from],[to],subject,body) VALUES('mark.haedicke@enron.com', 'paul.simons@enron.com', 'Re: First Polish Deal!', 'Congrats!  Things seem to be building rapidly now on the Continent.  Mark');
+INSERT INTO email([from],[to],subject,body) VALUES('e..carter@enron.com', 't..robinson@enron.com', 'FW: Producers Newsletter 9-24-2001', '
+The producer lumber pricing sheet.
+ -----Original Message-----
+From: 	Johnson, Jay  
+Sent:	Tuesday, October 16, 2001 3:42 PM
+To:	Carter, Karen E.
+Subject:	FW: Producers Newsletter 9-24-2001
+
+
+
+ -----Original Message-----
+From: 	Daigre, Sergai  
+Sent:	Friday, September 21, 2001 8:33 PM
+Subject:	Producers Newsletter 9-24-2001
+
+ ');
+INSERT INTO email([from],[to],subject,body) VALUES('david.delainey@enron.com', 'kenneth.lay@enron.com', 'Greater Houston Partnership', 'Ken, in response to the letter from Mr Miguel San Juan, my suggestion would 
+be to offer up the Falcon for their use; however, given the tight time frame 
+and your recent visit with Mr. Fox that it would be difficult for either you 
+or me to participate.
+
+I spoke to Max and he agrees with this approach.
+
+I hope this meets with your approval.
+
+Regards
+Delainey');
+INSERT INTO email([from],[to],subject,body) VALUES('lachandra.fenceroy@enron.com', 'lindy.donoho@enron.com', 'FW: Bus Applications Meeting Follow Up', 'Lindy,
+
+Here is the original memo we discussed earlier.  Please provide any information that you may have.
+
+Your cooperation is greatly appreciated.
+
+Thanks,
+
+lachandra.fenceroy@enron.com
+713.853.3884
+877.498.3401 Pager
+
+ -----Original Message-----
+From: 	Bisbee, Joanne  
+Sent:	Wednesday, September 26, 2001 7:50 AM
+To:	Fenceroy, LaChandra
+Subject:	FW: Bus Applications Meeting Follow Up
+
+Lachandra, Please get with David Duff today and see what this is about.  Who are our TW accounting business users?
+
+ -----Original Message-----
+From: 	Koh, Wendy  
+Sent:	Tuesday, September 25, 2001 2:41 PM
+To:	Bisbee, Joanne
+Subject:	Bus Applications Meeting Follow Up
+
+Lisa brought up a TW change effective Nov 1.  It involves eliminating a turnback surcharge.  I have no other information, but you might check with the business folks for any system changes required.
+
+Wendy');
+INSERT INTO email([from],[to],subject,body) VALUES('danny.mccarty@enron.com', 'fran.fagan@enron.com', 'RE: worksheets', 'Fran,
+    If Julie''s merit needs to be lump sum, just move it over to that column.  Also, send me Eric Gadd''s sheets as well.  Thanks.
+Dan
+
+ -----Original Message-----
+From: 	Fagan, Fran  
+Sent:	Thursday, December 20, 2001 11:10 AM
+To:	McCarty, Danny
+Subject:	worksheets
+
+As discussed, attached are your sheets for bonus and merit.
+
+Thanks,
+
+Fran Fagan
+Sr. HR Rep
+713.853.5219
+
+
+ << File: McCartyMerit.xls >>  << File: mccartyBonusCommercial_UnP.xls >> 
+
+');
+INSERT INTO email([from],[to],subject,body) VALUES('bert.meyers@enron.com', 'shift.dl-portland@enron.com', 'OCTOBER SCHEDULE', 'TEAM,
+
+PLEASE SEND ME ANY REQUESTS THAT YOU HAVE FOR OCTOBER.  SO FAR I HAVE THEM FOR LEAF.  I WOULD LIKE TO HAVE IT DONE BY THE 15TH OF THE MONTH.  ANY QUESTIONS PLEASE GIVE ME A CALL.
+
+BERT');
+INSERT INTO email([from],[to],subject,body) VALUES('errol.mclaughlin@enron.com', 'john.arnold@enron.com, bilal.bajwa@enron.com, john.griffith@enron.com,', 'TRV Notification:  (NG - PROPT P/L - 09/27/2001)', 'The report named: NG - PROPT P/L <http://trv.corp.enron.com/linkFromExcel.asp?report_cd=11&report_name=NG+-+PROPT+P/L&category_cd=5&category_name=FINANCIAL&toc_hide=1&sTV1=5&TV1Exp=Y&current_efct_date=09/27/2001>, published as of 09/27/2001 is now available for viewing on the website.');
+INSERT INTO email([from],[to],subject,body) VALUES('patrice.mims@enron.com', 'calvin.eakins@enron.com', 'Re: Small business supply assistance', 'Hi Calvin
+
+
+I spoke with Rickey (boy, is he long-winded!!).  Gave him the name of our 
+credit guy, Russell Diamond.
+
+Thank for your help!');
+INSERT INTO email([from],[to],subject,body) VALUES('legal <.hall@enron.com>', 'stephanie.panus@enron.com', 'Termination update', 'City of Vernon and Salt River Project terminated their contracts.  I will fax these notices to you.');
+INSERT INTO email([from],[to],subject,body) VALUES('d..steffes@enron.com', 'richard.shapiro@enron.com', 'EES / ENA Government Affairs Staffing & Outside Services', 'Rick --
+
+Here is the information on staffing and outside services.  Call if you need anything else.
+
+Jim
+
+ ');
+INSERT INTO email([from],[to],subject,body) VALUES('gelliott@industrialinfo.com', 'pcopello@industrialinfo.com', 'ECAAR (Gavin), WSCC (Diablo Canyon), & NPCC (Seabrook)', 'Dear Power Outage Database Customer, 
+Attached you will find an excel document. The outages contained within are forced or rescheduled outages. Your daily delivery will still contain these outages. 
+In addition to the two excel documents, there is a dbf file that is formatted like your daily deliveries you receive nightly. This will enable you to load the data into your regular database. Any questions please let me know. Thanks. 
+Greg Elliott 
+IIR, Inc. 
+713-783-5147 x 3481 
+outages@industrialinfo.com 
+THE INFORMATION CONTAINED IN THIS E-MAIL IS LEGALLY PRIVILEGED AND CONFIDENTIAL INFORMATION INTENDED ONLY FOR THE USE OF THE INDIVIDUAL OR ENTITY NAMED ABOVE.  YOU ARE HEREBY NOTIFIED THAT ANY DISSEMINATION, DISTRIBUTION, OR COPY OF THIS E-MAIL TO UNAUTHORIZED ENTITIES IS STRICTLY PROHIBITED. IF YOU HAVE RECEIVED THIS 
+E-MAIL IN ERROR, PLEASE DELETE IT.
+ - OUTAGE.dbf 
+ - 111201R.xls 
+ - 111201.xls ');
+INSERT INTO email([from],[to],subject,body) VALUES('enron.announcements@enron.com', 'all_ena_egm_eim@enron.com', 'EWS Brown Bag', 'MARK YOUR LUNCH CALENDARS NOW !
+
+You are invited to attend the EWS Brown Bag Lunch Series
+
+Featuring:   RAY BOWEN, COO
+
+Topic:  Enron Industrial Markets
+
+Thursday, March 15, 2001
+11:30 am - 12:30 pm
+EB 5 C2
+
+
+You bring your lunch,           Limited Seating
+We provide drinks and dessert.          RSVP  x 3-9610');
+INSERT INTO email([from],[to],subject,body) VALUES('chris.germany@enron.com', 'ingrid.immer@williams.com', 'Re: About St Pauls', 'Sounds good to me.  I bet this is next to the Warick?? Hotel.
+
+
+
+
+"Immer, Ingrid" <Ingrid.Immer@Williams.com> on 12/21/2000 11:48:47 AM
+To: "''chris.germany@enron.com''" <chris.germany@enron.com>
+cc:  
+Subject: About St Pauls
+
+
+
+
+ <<About St Pauls.url>>  
+? 
+?http://www.stpaulshouston.org/about.html 
+
+Chris, 
+
+I like the looks of this place.? What do you think about going here Christmas 
+eve?? They have an 11:00 a.m. service and a candlelight service at 5:00 p.m., 
+among others.
+
+Let me know.?? ii 
+
+ - About St Pauls.url
+
+');
+INSERT INTO email([from],[to],subject,body) VALUES('nas@cpuc.ca.gov', 'skatz@sempratrading.com, kmccrea@sablaw.com, thompson@wrightlaw.com,', 'Reply Brief filed July 31, 2000', ' - CPUC01-#76371-v1-Revised_Reply_Brief__Due_today_7_31_.doc');
+INSERT INTO email([from],[to],subject,body) VALUES('gascontrol@aglresources.com', 'dscott4@enron.com, lcampbel@enron.com', 'Alert Posted 10:00 AM November 20,2000: E-GAS Request Reminder', 'Alert Posted 10:00 AM November 20,2000: E-GAS Request Reminder
+As discussed in the Winter Operations Meeting on Sept.29,2000, 
+E-Gas(Emergency Gas) will not be offered this winter as a service from AGLC.  
+Marketers and Poolers can receive gas via Peaking and IBSS nominations(daisy 
+chain) from other marketers up to the 6 p.m. Same Day 2 nomination cycle.
+');
+INSERT INTO email([from],[to],subject,body) VALUES('dutch.quigley@enron.com', 'rwolkwitz@powermerchants.com', '', ' 
+
+Here is a goody for you');
+INSERT INTO email([from],[to],subject,body) VALUES('ryan.o''rourke@enron.com', 'k..allen@enron.com, randy.bhatia@enron.com, frank.ermis@enron.com,', 'TRV Notification:  (West VaR - 11/07/2001)', 'The report named: West VaR <http://trv.corp.enron.com/linkFromExcel.asp?report_cd=36&report_name=West+VaR&category_cd=2&category_name=WEST&toc_hide=1&sTV1=2&TV1Exp=Y&current_efct_date=11/07/2001>, published as of 11/07/2001 is now available for viewing on the website.');
+INSERT INTO email([from],[to],subject,body) VALUES('mjones7@txu.com', 'cstone1@txu.com, ggreen2@txu.com, timpowell@txu.com,', 'Enron / HPL Actuals for July 10, 2000', 'Teco Tap       10.000 / Enron ; 110.000 / HPL IFERC
+
+LS HPL LSK IC       30.000 / Enron
+');
+INSERT INTO email([from],[to],subject,body) VALUES('susan.pereira@enron.com', 'kkw816@aol.com', 'soccer practice', 'Kathy-
+
+Is it safe to assume that practice is cancelled for tonight??
+
+Susan Pereira');
+INSERT INTO email([from],[to],subject,body) VALUES('mark.whitt@enron.com', 'barry.tycholiz@enron.com', 'Huber Internal Memo', 'Please look at this.  I didn''t know how deep to go with the desk.  Do you think this works.
+
+ ');
+INSERT INTO email([from],[to],subject,body) VALUES('m..forney@enron.com', 'george.phillips@enron.com', '', 'George,
+Give me a call and we will further discuss opportunities on the 13st floor.
+
+Thanks,
+JMForney
+3-7160');
+INSERT INTO email([from],[to],subject,body) VALUES('brad.mckay@enron.com', 'angusmcka@aol.com', 'Re: (no subject)', 'not yet');
+INSERT INTO email([from],[to],subject,body) VALUES('adam.bayer@enron.com', 'jonathan.mckay@enron.com', 'FW: Curve Fetch File', 'Here is the curve fetch file sent to me.  It has plenty of points in it.  If you give me a list of which ones you need we may be able to construct a secondary worksheet to vlookup the values.
+
+adam
+35227
+
+
+ -----Original Message-----
+From: 	Royed, Jeff  
+Sent:	Tuesday, September 25, 2001 11:37 AM
+To:	Bayer, Adam
+Subject:	Curve Fetch File
+
+Let me know if it works.   It may be required to have a certain version of Oracle for it to work properly.
+
+ 
+
+Jeff Royed
+Enron 
+Energy Operations
+Phone: 713-853-5295');
+INSERT INTO email([from],[to],subject,body) VALUES('matt.smith@enron.com', 'yan.wang@enron.com', 'Report Formats', 'Yan,
+
+The merged reports look great.  I believe the only orientation changes are to 
+"unmerge" the following six reports:  
+
+31 Keystone Receipts
+15 Questar Pipeline
+40 Rockies Production
+22 West_2
+23 West_3
+25 CIG_WIC
+
+The orientation of the individual reports should be correct.  Thanks.
+
+Mat
+
+PS.  Just a reminder to add the "*" by the title of calculated points.');
+INSERT INTO email([from],[to],subject,body) VALUES('michelle.lokay@enron.com', 'jimboman@bigfoot.com', 'Egyptian Festival', '---------------------- Forwarded by Michelle Lokay/ET&S/Enron on 09/07/2000 
+10:08 AM ---------------------------
+
+
+"Karkour, Randa" <Randa.Karkour@COMPAQ.com> on 09/07/2000 09:01:04 AM
+To: "''Agheb (E-mail)" <Agheb@aol.com>, "Leila Mankarious (E-mail)" 
+<Leila_Mankarious@mhhs.org>, "''Marymankarious (E-mail)" 
+<marymankarious@aol.com>, "Michelle lokay (E-mail)" <mlokay@enron.com>, "Ramy 
+Mankarious (E-mail)" <Mankarious@aol.com>
+cc:  
+
+Subject: Egyptian Festival
+
+
+ <<Egyptian Festival.url>>
+
+ http://www.egyptianfestival.com/
+
+ - Egyptian Festival.url
+');
+INSERT INTO email([from],[to],subject,body) VALUES('errol.mclaughlin@enron.com', 'sherry.dawson@enron.com', 'Urgent!!! --- New EAST books', 'This has to be done..................................
+
+Thanks
+---------------------- Forwarded by Errol McLaughlin/Corp/Enron on 12/20/2000 
+08:39 AM ---------------------------
+   
+	
+	
+	From:  William Kelly @ ECT                           12/20/2000 08:31 AM
+	
+
+To: Kam Keiser/HOU/ECT@ECT, Darron C Giron/HOU/ECT@ECT, David 
+Baumbach/HOU/ECT@ECT, Errol McLaughlin/Corp/Enron@ENRON
+cc: Kimat Singla/HOU/ECT@ECT, Kulvinder Fowler/NA/Enron@ENRON, Kyle R 
+Lilly/HOU/ECT@ECT, Jeff Royed/Corp/Enron@ENRON, Alejandra 
+Chavez/NA/Enron@ENRON, Crystal Hyde/HOU/ECT@ECT 
+
+Subject: New EAST books
+
+We have new book names in TAGG for our intramonth portfolios and it is 
+extremely important that any deal booked to the East is communicated quickly 
+to someone on my team.  I know it will take some time for the new names to 
+sink in and I do not want us to miss any positions or P&L.  
+
+Thanks for your help on this.
+
+New:
+Scott Neal :         East Northeast
+Dick Jenkins:     East Marketeast
+
+WK 
+');
+INSERT INTO email([from],[to],subject,body) VALUES('david.forster@enron.com', 'eol.wide@enron.com', 'Change to Stack Manager', 'Effective immediately, there is a change to the Stack Manager which will 
+affect any Inactive Child.
+
+An inactive Child with links to Parent products will not have their 
+calculated prices updated until the Child product is Activated.
+
+When the Child Product is activated, the price will be recalculated and 
+updated BEFORE it is displayed on the web.
+
+This means that if you are inputting a basis price on a Child product, you 
+will not see the final, calculated price until you Activate the product, at 
+which time the customer will also see it.
+
+If you have any questions, please contact the Help Desk on:
+
+Americas: 713 853 4357
+Europe: + 44 (0) 20 7783 7783
+Asia/Australia: +61 2 9229 2300
+
+Dave');
+INSERT INTO email([from],[to],subject,body) VALUES('vince.kaminski@enron.com', 'jhh1@email.msn.com', 'Re: Light reading - see pieces beginning on page 7', 'John,
+
+I saw it. Very interesting.
+
+Vince
+
+
+
+
+
+"John H Herbert" <jhh1@email.msn.com> on 07/28/2000 08:38:08 AM
+To: "Vince J Kaminski" <Vince_J_Kaminski@enron.com>
+cc:  
+Subject: Light reading - see pieces beginning on page 7
+
+
+Cheers and have a nice weekend,
+
+
+JHHerbert
+
+
+
+
+ - gd000728.pdf
+
+
+
+');
+INSERT INTO email([from],[to],subject,body) VALUES('matthew.lenhart@enron.com', 'mmmarcantel@equiva.com', 'RE:', 'i will try to line up a pig for you ');
+INSERT INTO email([from],[to],subject,body) VALUES('jae.black@enron.com', 'claudette.harvey@enron.com, chaun.roberts@enron.com, judy.martinez@enron.com,', 'Disaster Recovery Equipment', 'As a reminder...there are several pieces of equipment that are set up on the 30th Floor, as well as on our floor, for the Disaster Recovery Team.  PLEASE DO NOT TAKE, BORROW OR USE this equipment.  Should you need to use another computer system, other than yours, or make conference calls please work with your Assistant to help find or set up equipment for you to use.
+
+Thanks for your understanding in this matter.
+
+T.Jae Black
+East Power Trading
+Assistant to Kevin Presto
+off. 713-853-5800
+fax 713-646-8272
+cell 713-539-4760');
+INSERT INTO email([from],[to],subject,body) VALUES('eric.bass@enron.com', 'dale.neuner@enron.com', '5 X 24', 'Dale,
+
+Have you heard anything more on the 5 X 24s?  We would like to get this 
+product out ASAP.
+
+
+Thanks,
+
+Eric');
+INSERT INTO email([from],[to],subject,body) VALUES('messenger@smartreminders.com', 'm..tholt@enron.com', '10% Coupon - PrintPal Printer Cartridges - 100% Guaranteed', '[IMAGE]
+[IMAGE][IMAGE][IMAGE] 
+Dear  SmartReminders Member,
+       [IMAGE]         [IMAGE]        [IMAGE]     [IMAGE]    [IMAGE]    [IMAGE]        [IMAGE]      [IMAGE]     	
+
+
+  
+ 
+ 
+ 
+ 
+ 
+ 
+ 
+ 
+ 
+ 
+ 
+ 
+ 
+ 
+ 
+ 
+ 
+
+We respect  your privacy and are a Certified Participant of the BBBOnLine
+ Privacy Program.  To be removed from future offers,click  here. 
+SmartReminders.com  is a permission based service. To unsubscribe click  here .  ');
+INSERT INTO email([from],[to],subject,body) VALUES('benjamin.rogers@enron.com', 'mark.bernstein@enron.com', '', 'The guy you are talking about left CIN under a "cloud of suspicion" sort of 
+speak.  He was the one who got into several bad deals and PPA''s in California 
+for CIN, thus he left on a bad note.  Let me know if you need more detail 
+than that, I felt this was the type of info you were looking for.  Thanks!
+Ben');
+INSERT INTO email([from],[to],subject,body) VALUES('enron_update@concureworkplace.com', 'michelle.cash@enron.com', 'Expense Report Receipts Not Received', 'Employee Name: Michelle Cash
+Report Name:   Houston Cellular 8-11-01
+Report Date:   12/13/01
+Report ID:     594D37C9ED2111D5B452
+Submitted On:  12/13/01
+
+You are only allowed 2 reports with receipts outstanding.  Your expense reports will not be paid until you meet this requirement.');
+INSERT INTO email([from],[to],subject,body) VALUES('susan.mara@enron.com', 'ray.alvarez@enron.com, mark.palmer@enron.com, karen.denne@enron.com,', 'CAISO Emergency Motion -- to discontinue market-based rates for', 'FYI.  the latest broadside against the generators.
+
+Sue Mara
+Enron Corp.
+Tel: (415) 782-7802
+Fax:(415) 782-7854
+----- Forwarded by Susan J Mara/NA/Enron on 06/08/2001 12:24 PM -----
+
+
+	"Milner, Marcie" <MMilner@coral-energy.com> 06/08/2001 11:13 AM 	   To: "''smara@enron.com''" <smara@enron.com>  cc:   Subject: CAISO Emergency Motion	
+
+
+Sue, did you see this emergency motion the CAISO filed today?  Apparently
+they are requesting that FERC discontinue market-based rates immediately and
+grant refunds plus interest on the difference between cost-based rates and
+market revenues received back to May 2000.  They are requesting the
+commission act within 14 days.  Have you heard anything about what they are
+doing?
+
+Marcie
+
+http://www.caiso.com/docs/2001/06/08/200106081005526469.pdf 
+');
+INSERT INTO email([from],[to],subject,body) VALUES('fletcher.sturm@enron.com', 'eloy.escobar@enron.com', 'Re: General Brinks Position Meeting', 'Eloy,
+
+Who is General Brinks?
+
+Fletch');
+INSERT INTO email([from],[to],subject,body) VALUES('nailia.dindarova@enron.com', 'richard.shapiro@enron.com', 'Documents for Mark Frevert (on EU developments and lessons from', 'Rick,
+
+Here are the documents that Peter has prepared for Mark Frevert. 
+
+Nailia
+---------------------- Forwarded by Nailia Dindarova/LON/ECT on 25/06/2001 
+16:36 ---------------------------
+
+
+Nailia Dindarova
+25/06/2001 15:36
+To: Michael Brown/Enron@EUEnronXGate
+cc: Ross Sankey/Enron@EUEnronXGate, Eric Shaw/ENRON@EUEnronXGate, Peter 
+Styles/LON/ECT@ECT 
+
+Subject: Documents for Mark Frevert (on EU developments and lessons from 
+California)
+
+Michael,
+
+
+These are the documents that Peter promised to give to you for Mark Frevert. 
+He has now handed them to him in person but asked me to transmit them 
+electronically to you, as well as Eric and Ross.
+
+Nailia
+
+
+
+
+
+');
+INSERT INTO email([from],[to],subject,body) VALUES('peggy.a.kostial@accenture.com', 'dave.samuels@enron.com', 'EOL-Accenture Deal Sheet', 'Dave -
+
+Attached are our comments and suggested changes. Please call to review.
+
+On the time line for completion, we have four critical steps to complete:
+     Finalize market analysis to refine business case, specifically
+     projected revenue stream
+     Complete counterparty surveying, including targeting 3 CPs for letters
+     of intent
+     Review Enron asset base for potential reuse/ licensing
+     Contract negotiations
+
+Joe will come back to us with an updated time line, but it is my
+expectation that we are still on the same schedule (we just begun week
+three) with possibly a week or so slippage.....contract negotiations will
+probably be the critical path.
+
+We will send our cut at the actual time line here shortly. Thanks,
+
+Peggy
+
+(See attached file: accenture-dealpoints v2.doc)
+ - accenture-dealpoints v2.doc ');
+INSERT INTO email([from],[to],subject,body) VALUES('thomas.martin@enron.com', 'thomas.martin@enron.com', 'Re: Guadalupe Power Partners LP', '---------------------- Forwarded by Thomas A Martin/HOU/ECT on 03/20/2001 
+03:49 PM ---------------------------
+
+
+Thomas A Martin
+10/11/2000 03:55 PM
+To: Patrick Wade/HOU/ECT@ECT
+cc:  
+Subject: Re: Guadalupe Power Partners LP  
+
+The deal is physically served at Oasis Waha or Oasis Katy and is priced at 
+either HSC, Waha or Katytailgate GD at buyers option three days prior to 
+NYMEX  close.
+
+');
+INSERT INTO email([from],[to],subject,body) VALUES('judy.townsend@enron.com', 'dan.junek@enron.com, chris.germany@enron.com', 'Columbia Distribution''s Capacity Available for Release - Sum', '---------------------- Forwarded by Judy Townsend/HOU/ECT on 03/09/2001 11:04 
+AM ---------------------------
+
+
+agoddard@nisource.com on 03/08/2001 09:16:57 AM
+To: "        -         *Koch, Kent" <kkoch@nisource.com>, "        -         
+*Millar, Debra" <dmillar@nisource.com>, "        -         *Burke, Lynn" 
+<lburke@nisource.com>
+cc: "        -         *Heckathorn, Tom" <theckathorn@nisource.com> 
+Subject: Columbia Distribution''s Capacity Available for Release - Sum
+
+
+Attached is Columbia Distribution''s notice of capacity available for release
+for
+the summer of 2001 (Apr. 2001 through Oct. 2001).
+
+Please note that the deadline for bids is 3:00pm EST on March 20, 2001.
+
+If you have any questions, feel free to contact any of the representatives
+listed
+at the bottom of the attachment.
+
+Aaron Goddard
+
+
+
+
+ - 2001Summer.doc
+');
+INSERT INTO email([from],[to],subject,body) VALUES('rhonda.denton@enron.com', 'tim.belden@enron.com, dana.davis@enron.com, genia.fitzgerald@enron.com,', 'Split Rock Energy LLC', 'We have received the executed EEI contract from this CP dated 12/12/2000.  
+Copies will be distributed to Legal and Credit.');
+INSERT INTO email([from],[to],subject,body) VALUES('kerrymcelroy@dwt.com', 'jack.speer@alcoa.com, crow@millernash.com, michaelearly@earthlink.net,', 'Oral Argument Request', ' - Oral Argument Request.doc');
+INSERT INTO email([from],[to],subject,body) VALUES('mike.carson@enron.com', 'rlmichaelis@hormel.com', '', 'Did you come in town this wk end..... My new number at our house is : 
+713-668-3712...... my cell # is 281-381-7332
+
+the kid');
+INSERT INTO email([from],[to],subject,body) VALUES('cooper.richey@enron.com', 'trycooper@hotmail.com', 'FW: Contact Info', '
+
+-----Original Message-----
+From: Punja, Karim 
+Sent: Thursday, December 13, 2001 2:35 PM
+To: Richey, Cooper
+Subject: Contact Info
+
+
+Cooper,
+
+Its been a real pleasure working with you (even though it was for only a small amount of time)
+I hope we can stay in touch.
+
+Home# 234-0249
+email: kpunja@hotmail.com
+
+Take Care, 
+
+Karim.
+  ');
+INSERT INTO email([from],[to],subject,body) VALUES('bjm30@earthlink.net', 'mcguinn.k@enron.com, mcguinn.ian@enron.com, mcguinn.stephen@enron.com,', 'email address change', 'Hello all.
+
+I haven''t talked to many of you via email recently but I do want to give you
+my new address for your email file:
+
+    bjm30@earthlink.net
+
+I hope all is well.
+
+Brian McGuinn');
+INSERT INTO email([from],[to],subject,body) VALUES('shelley.corman@enron.com', 'steve.hotte@enron.com', 'Flat Panels', 'Can you please advise what is going on with the flat panels that we had planned to distribute to our gas logistics team.  It was in the budget and we had the okay, but now I''m hearing there is some hold-up & the units are stored on 44.
+
+Shelley');
+INSERT INTO email([from],[to],subject,body) VALUES('sara.davidson@enron.com', 'john.schwartzenburg@enron.com, scott.dieball@enron.com, recipients@enron.com,', '2001 Enron Law Conference (Distribution List 2)', '    Enron Law Conference
+
+San Antonio, Texas    May 2-4, 2001    Westin Riverwalk
+
+                   See attached memo for more details!!
+
+
+? Registration for the law conference this year will be handled through an 
+Online RSVP Form on the Enron Law Conference Website at 
+http://lawconference.corp.enron.com.  The website is still under construction 
+and will not be available until Thursday, March 15, 2001.  
+
+? We will send you another e-mail to confirm when the Law Conference Website 
+is operational. 
+
+? Please complete the Online RSVP Form as soon as it is available  and submit 
+it no later than Friday, March 30th.  
+
+
+
+
+');
+INSERT INTO email([from],[to],subject,body) VALUES('tori.kuykendall@enron.com', 'heath.b.taylor@accenture.com', 'Re:', 'hey - thats funny about john - he definitely remembers him - i''ll call pat 
+and let him know - we are coming on saturday - i just havent had a chance to 
+call you guys back --  looking forward to it -- i probably need the 
+directions again though');
+INSERT INTO email([from],[to],subject,body) VALUES('darron.giron@enron.com', 'bryce.baxter@enron.com', 'Re: Feedback for Audrey Cook', 'Bryce,
+
+I''ll get it done today.  
+
+DG    3-9573
+
+
+   
+	
+	
+	From:  Bryce Baxter                           06/12/2000 07:15 PM
+	
+
+To: Darron C Giron/HOU/ECT@ECT
+cc:  
+Subject: Feedback for Audrey Cook
+
+You were identified as a reviewer for Audrey Cook.  If possible, could you 
+complete her feedback by end of business Wednesday?  It will really help me 
+in the PRC process to have your input.  Thanks.
+
+');
+INSERT INTO email([from],[to],subject,body) VALUES('casey.evans@enron.com', 'stephanie.sever@enron.com', 'Gas EOL ID', 'Stephanie,
+
+In conjunction with the recent movement of several power traders, they are changing the names of their gas books as well.  The names of the new gas books and traders are as follows:
+
+PWR-NG-LT-SPP:  Mike Carson
+PWR-NG-LT-SERC:  Jeff King
+
+If you need to know their power desk to map their ID to their gas books, those desks are as follows:
+
+EPMI-LT-SPP:  Mike Carson
+EPMI-LT-SERC:  Jeff King
+
+I will be in training this afternoon, but will be back when class is over.  Let me know if you have any questions.
+
+Thanks for your help!
+Casey');
+INSERT INTO email([from],[to],subject,body) VALUES('darrell.schoolcraft@enron.com', 'david.roensch@enron.com, kimberly.watson@enron.com, michelle.lokay@enron.com,', 'Postings', 'Please see the attached.
+
+
+ds
+
+
+  
+
+ ');
+INSERT INTO email([from],[to],subject,body) VALUES('mcominsky@aol.com', 'cpatman@bracepatt.com, james_derrick@enron.com', 'Jurisprudence Luncheon', 'Carrin & Jim --
+
+It was an honor and a pleasure to meet both of you yesterday.  I know we will
+have fun working together on this very special event.
+
+Jeff left the jurisprudence luncheon lists for me before he left on vacation.
+ I wasn''t sure whether he transmitted them to you as well.  Would you please
+advise me if you would like them sent to you?  I can email the MS Excel files
+or I can fax the hard copies to you.   Please advise what is most convenient.
+
+I plan to be in town through the holidays and can be reached by phone, email,
+or cell phone at any time.  My cell phone number is 713/705-4829.
+
+Thanks again for your interest in the ADL''s work.  Martin.
+
+Martin B. Cominsky
+Director, Southwest Region
+Anti-Defamation League
+713/627-3490, ext. 122
+713/627-2011 (fax)
+MCominsky@aol.com');
+INSERT INTO email([from],[to],subject,body) VALUES('phillip.love@enron.com', 'todagost@utmb.edu, gbsonnta@utmb.edu', 'New President', 'I had a little bird put a word in my ear.  Is there any possibility for Ben 
+Raimer to be Bush''s secretary of HHS?  Just curious about that infamous UTMB 
+rumor mill.  Hope things are well, happy holidays.
+PL');
+INSERT INTO email([from],[to],subject,body) VALUES('marie.heard@enron.com', 'ehamilton@fna.com', 'ISDA Master Agreement', 'Erin:
+
+Pursuant to your request, attached are the Schedule to the ISDA Master Agreement, together with Paragraph 13 to the ISDA Credit Support Annex.  Please let me know if you need anything else.  We look forward to hearing your comments.
+
+Marie
+
+Marie Heard
+Senior Legal Specialist
+Enron North America Corp.
+Phone:  (713) 853-3907
+Fax:  (713) 646-3490
+marie.heard@enron.com
+
+				 ');
+INSERT INTO email([from],[to],subject,body) VALUES('andrea.ring@enron.com', 'beverly.beaty@enron.com', 'Re: Tennessee Buy - Louis Dreyfus', 'Beverly -  once again thanks so much for your help on this.
+
+           
+
+                                                                     ');
+INSERT INTO email([from],[to],subject,body) VALUES('karolyn.criado@enron.com', 'j..bonin@enron.com, felicia.case@enron.com, b..clapp@enron.com,', 'Price List week of Oct. 8-9, 2001', '
+Please contact me if you have any questions regarding last weeks prices.
+
+Thank you,
+Karolyn Criado
+3-9441
+
+
+ 
+
+');
+INSERT INTO email([from],[to],subject,body) VALUES('kevin.presto@enron.com', 'edward.baughman@enron.com, billy.braddock@enron.com', 'Associated', 'Please begin working on filling our Associated short position in 02.   I would like to take this risk off the books.
+
+In addition, please find out what a buy-out of VEPCO would cost us.   With Rogers transitioning to run our retail risk management, I would like to clean up our customer positions.
+
+We also need to continue to explore a JEA buy-out.
+
+Thanks.');
+INSERT INTO email([from],[to],subject,body) VALUES('stacy.dickson@enron.com', 'gregg.penman@enron.com', 'RE: Constellation TC 5-7-01', 'Gregg, 
+
+I am at home with a sick baby.  (Lots of fun!)  I will call you about this 
+tomorrow.
+
+Stacy');
+INSERT INTO email([from],[to],subject,body) VALUES('joe.quenet@enron.com', 'dfincher@utilicorp.com', '', 'hey big guy.....check this out.....
+
+ w ww.gorelieberman-2000.com/');
+INSERT INTO email([from],[to],subject,body) VALUES('k..allen@enron.com', 'jacqestc@aol.com', '', 'Jacques,
+
+I sent you a fax of Kevin Kolb''s comments on the release.  The payoff on the note would be $36,248 ($36090(principal) + $158 (accrued interest)).
+This is assuming we wrap this up on Tuesday.  
+
+Please email to confirm that their changes are ok so I can set up a meeting on Tuesday to reach closure.
+
+Phillip');
+INSERT INTO email([from],[to],subject,body) VALUES('kourtney.nelson@enron.com', 'mike.swerzbin@enron.com', 'Adjusted L/R Balance', 'Mike,
+
+I placed the adjusted L/R Balance on the Enronwest site.  It is under the "Staff/Kourtney Nelson".  There are two links:  
+
+1)  "Adj L_R" is the same data/format from the weekly strategy meeting. 
+2)  "New Gen 2001_2002" link has all of the supply side info that is used to calculate the L/R balance
+	-Please note the Data Flag column, a value of "3" indicates the project was cancelled, on hold, etc and is not included in the calc.  
+
+Both of these sheets are interactive Excel spreadsheets and thus you can play around with the data as you please.  Also, James Bruce is working to get his gen report on the web.  That will help with your access to information on new gen.
+
+Please let me know if you have any questions or feedback,
+
+Kourtney
+
+
+
+Kourtney Nelson
+Fundamental Analysis 
+Enron North America
+(503) 464-8280
+kourtney.nelson@enron.com');
+INSERT INTO email([from],[to],subject,body) VALUES('d..thomas@enron.com', 'naveed.ahmed@enron.com', 'FW: Current Enron TCC Portfolio', '
+
+-----Original Message-----
+From: Grace, Rebecca M. 
+Sent: Monday, December 17, 2001 9:44 AM
+To: Thomas, Paul D.
+Cc: Cashion, Jim; Allen, Thresa A.; May, Tom
+Subject: RE: Current Enron TCC Portfolio
+
+
+Paul,
+
+I reviewed NY''s list.  I agree with all of their contracts numbers and mw amounts.
+
+Call if you have any more questions.
+
+Rebecca
+
+
+
+ -----Original Message-----
+From: 	Thomas, Paul D.  
+Sent:	Monday, December 17, 2001 9:08 AM
+To:	Grace, Rebecca M.
+Subject:	FW: Current Enron TCC Portfolio
+
+ << File: enrontccs.xls >> 
+Rebecca,
+Let me know if you see any differences.
+
+Paul
+X 3-0403
+-----Original Message-----
+From: Thomas, Paul D. 
+Sent: Monday, December 17, 2001 9:04 AM
+To: Ahmed, Naveed
+Subject: FW: Current Enron TCC Portfolio
+
+
+
+
+-----Original Message-----
+From: Thomas, Paul D. 
+Sent: Thursday, December 13, 2001 10:01 AM
+To: Baughman, Edward D.
+Subject: Current Enron TCC Portfolio
+
+
+');
+INSERT INTO email([from],[to],subject,body) VALUES('stephanie.panus@enron.com', 'william.bradford@enron.com, debbie.brackett@enron.com,', 'Coastal Merchant Energy/El Paso Merchant Energy', 'Coastal Merchant Energy, L.P. merged with and into El Paso Merchant Energy, 
+L.P., effective February 1, 2001, with the surviving entity being El Paso 
+Merchant Energy, L.P.  We currently have ISDA Master Agreements with both 
+counterparties.  Please see the attached memo regarding the existing Masters 
+and let us know which agreement should be terminated.
+
+Thanks,
+Stephanie
+');
+INSERT INTO email([from],[to],subject,body) VALUES('kam.keiser@enron.com', 'c..kenne@enron.com', 'RE: What about this too???', ' 
+
+ -----Original Message-----
+From: 	Kenne, Dawn C.  
+Sent:	Wednesday, February 06, 2002 11:50 AM
+To:	Keiser, Kam
+Subject:	What about this too???
+
+
+ << File: Netco Trader Matrix.xls >> 
+ ');
+INSERT INTO email([from],[to],subject,body) VALUES('chris.meyer@enron.com', 'joe.parks@enron.com', 'Centana', 'Talked to Chip.  We do need Cash Committe approval given the netting feature of your deal, which means Batch Funding Request.  Please update per my previous e-mail and forward.
+
+Thanks
+
+chris
+x31666');
+INSERT INTO email([from],[to],subject,body) VALUES('debra.perlingiere@enron.com', 'jworman@academyofhealth.com', '', 'Have a great weekend!   Happy Fathers Day!
+
+
+Debra Perlingiere
+Enron North America Corp.
+1400 Smith Street, EB 3885
+Houston, Texas 77002
+dperlin@enron.com
+Phone 713-853-7658
+Fax  713-646-3490');
+INSERT INTO email([from],[to],subject,body) VALUES('outlook.team@enron.com', '', 'Demo by Martha Janousek of Dashboard & Pipeline Profile / Julia  &', 'CALENDAR ENTRY:	APPOINTMENT
+
+Description:
+	Demo by Martha Janousek of Dashboard & Pipeline Profile / Julia  & Dir Rpts. - 4102
+
+Date:		1/5/2001
+Time:		9:00 AM - 10:00 AM (Central Standard Time)
+
+Chairperson:	Outlook Migration Team
+
+Detailed Description:');
+INSERT INTO email([from],[to],subject,body) VALUES('diana.seifert@enron.com', 'mark.taylor@enron.com', 'Guest access Chile', 'Hello Mark,
+
+Justin Boyd told me that your can help me with questions regarding Chile.
+We got a request for guest access through MG.
+The company is called Escondida and is a subsidiary of BHP Australia.
+
+Please advise if I can set up a guest account or not.
+F.Y.I.: MG is planning to put a "in w/h Chile" contract for Copper on-line as 
+soon as Enron has done the due diligence for this country.
+Thanks !
+
+
+Best regards
+
+Diana Seifert
+EOL PCG');
+INSERT INTO email([from],[to],subject,body) VALUES('enron_update@concureworkplace.com', 'mark.whitt@enron.com', '<<Concur Expense Document>> - 121001', 'The Approval status has changed on the following report:
+
+Status last changed by: Barry L. Tycholiz
+Expense Report Name: 121001
+Report Total: $198.98
+Amount Due Employee: $198.98
+Amount Approved: $198.98
+Amount Paid: $0.00
+Approval Status: Approved
+Payment Status: Pending
+
+
+To review this expense report, click on the following link for Concur Expense.
+http://expensexms.enron.com');
+INSERT INTO email([from],[to],subject,body) VALUES('kevin.hyatt@enron.com', '', 'Technical Support', 'Outside the U.S., please refer to the list below:
+
+Australia:
+1800 678-515
+support@palm-au.com
+
+Canada:
+1905 305-6530
+support@palm.com
+
+New Zealand:
+0800 446-398
+support@palm-nz.com
+
+U.K.:
+0171 867 0108
+eurosupport@palm.3com.com
+
+Please refer to the Worldwide Customer Support card for a complete technical support contact list.');
+INSERT INTO email([from],[to],subject,body) VALUES('geoff.storey@enron.com', 'dutch.quigley@enron.com', 'RE:', 'duke contact?
+
+ -----Original Message-----
+From: 	Quigley, Dutch  
+Sent:	Wednesday, October 31, 2001 10:14 AM
+To:	Storey, Geoff
+Subject:	RE: 
+
+bp corp	Albert LaMore	281-366-4962
+
+running the reports now
+
+
+ -----Original Message-----
+From: 	Storey, Geoff  
+Sent:	Wednesday, October 31, 2001 10:10 AM
+To:	Quigley, Dutch
+Subject:	RE: 
+
+give me a contact over there too
+BP
+
+
+ -----Original Message-----
+From: 	Quigley, Dutch  
+Sent:	Wednesday, October 31, 2001 9:42 AM
+To:	Storey, Geoff
+Subject:	
+
+Coral	Jeff Whitnah	713-767-5374
+Relaint	Steve McGinn	713-207-4000');
+INSERT INTO email([from],[to],subject,body) VALUES('pete.davis@enron.com', 'pete.davis@enron.com', 'Start Date: 4/22/01; HourAhead hour: 3;  <CODESITE>', 'Start Date: 4/22/01; HourAhead hour: 3;  No ancillary schedules awarded.  
+Variances detected.
+Variances detected in Load schedule.
+
+    LOG MESSAGES:
+
+PARSING FILE -->> O:\Portland\WestDesk\California Scheduling\ISO Final 
+Schedules\2001042203.txt
+
+---- Load Schedule ----
+$$$ Variance found in table tblLoads.
+     Details: (Hour: 3 / Preferred:   1.92 / Final:   1.89)
+  TRANS_TYPE: FINAL
+  LOAD_ID: PGE4
+  MKT_TYPE: 2
+  TRANS_DATE: 4/22/01
+  SC_ID: EPMI
+
+');
+INSERT INTO email([from],[to],subject,body) VALUES('john.postlethwaite@enron.com', 'john.zufferli@enron.com', 'Reference', 'John, hope things are going well up there for you. The big day is almost here for you and Jessica. I was wondering if I could use your name as a job reference if need be. I am just trying to get everything in order just in case something happens. 
+
+John');
+INSERT INTO email([from],[to],subject,body) VALUES('jeffrey.shankman@enron.com', 'lschiffm@jonesday.com', 'Re:', 'I saw you called on the cell this a.m.  Sorry I missed you.  (I was in the 
+shower).  I have had a shitty week--I suspect my silence (not only to you, 
+but others) after our phone call is a result of the week.  I''m seeing Glen at 
+11:15....talk to you');
+INSERT INTO email([from],[to],subject,body) VALUES('litebytz@enron.com', '', 'Lite Bytz RSVP', '
+This week''s Lite Bytz presentation will feature the following TOOLZ speaker:
+
+Richard McDougall
+Solaris 8
+Thursday, June 7, 2001
+
+If you have not already signed up, please RSVP via email to litebytz@enron.com by the end of the day Tuesday, June 5, 2001.
+
+*Remember: this is now a Brown Bag Event--so bring your lunch and we will provide cookies and drinks.
+
+Click below for more details.
+
+http://home.enron.com:84/messaging/litebytztoolzprint.jpg');
+    COMMIT;
+  }
+} {}
+
+###############################################################################
+# Everything above just builds an interesting test database.  The actual
+# tests come after this comment.
+###############################################################################
+
+do_test fts3ac-1.2 {
+  execsql {
+    SELECT rowid FROM email WHERE email MATCH 'mark'
+  }
+} {6 17 25 38 40 42 73 74}
+do_test fts3ac-1.3 {
+  execsql {
+    SELECT rowid FROM email WHERE email MATCH 'susan'
+  }
+} {24 40}
+do_test fts3ac-1.4 {
+  execsql {
+    SELECT rowid FROM email WHERE email MATCH 'mark susan'
+  }
+} {40}
+do_test fts3ac-1.5 {
+  execsql {
+    SELECT rowid FROM email WHERE email MATCH 'susan mark'
+  }
+} {40}
+do_test fts3ac-1.6 {
+  execsql {
+    SELECT rowid FROM email WHERE email MATCH '"mark susan"'
+  }
+} {}
+do_test fts3ac-1.7 {
+  execsql {
+    SELECT rowid FROM email WHERE email MATCH 'mark -susan'
+  }
+} {6 17 25 38 42 73 74}
+do_test fts3ac-1.8 {
+  execsql {
+    SELECT rowid FROM email WHERE email MATCH '-mark susan'
+  }
+} {24}
+do_test fts3ac-1.9 {
+  execsql {
+    SELECT rowid FROM email WHERE email MATCH 'mark OR susan'
+  }
+} {6 17 24 25 38 40 42 73 74}
+
+# Some simple tests of the automatic "offsets(email)" column.  In the sample
+# data set above, only one message, number 20, contains the words
+# "gas" and "reminder" in both body and subject.
+#
+do_test fts3ac-2.1 {
+  execsql {
+    SELECT rowid, offsets(email) FROM email
+     WHERE email MATCH 'gas reminder'
+  }
+} {20 {2 0 42 3 2 1 54 8 3 0 42 3 3 1 54 8 3 0 129 3 3 0 143 3 3 0 240 3}}
+do_test fts3ac-2.2 {
+  execsql {
+    SELECT rowid, offsets(email) FROM email
+     WHERE email MATCH 'subject:gas reminder'
+  }
+} {20 {2 0 42 3 2 1 54 8 3 1 54 8}}
+do_test fts3ac-2.3 {
+  execsql {
+    SELECT rowid, offsets(email) FROM email
+     WHERE email MATCH 'body:gas reminder'
+  }
+} {20 {2 1 54 8 3 0 42 3 3 1 54 8 3 0 129 3 3 0 143 3 3 0 240 3}}
+do_test fts3ac-2.4 {
+  execsql {
+    SELECT rowid, offsets(email) FROM email
+     WHERE subject MATCH 'gas reminder'
+  }
+} {20 {2 0 42 3 2 1 54 8}}
+do_test fts3ac-2.5 {
+  execsql {
+    SELECT rowid, offsets(email) FROM email
+     WHERE body MATCH 'gas reminder'
+  }
+} {20 {3 0 42 3 3 1 54 8 3 0 129 3 3 0 143 3 3 0 240 3}}
+
+# Document 32 contains 5 instances of the world "child".  But only
+# 3 of them are paired with "product".  Make sure only those instances
+# that match the phrase appear in the offsets(email) list.
+#
+do_test fts3ac-3.1 {
+  execsql {
+    SELECT rowid, offsets(email) FROM email
+     WHERE body MATCH 'child product' AND +rowid=32
+  }
+} {32 {3 0 94 5 3 0 114 5 3 0 207 5 3 1 213 7 3 0 245 5 3 1 251 7 3 0 409 5 3 1 415 7 3 1 493 7}}
+do_test fts3ac-3.2 {
+  execsql {
+    SELECT rowid, offsets(email) FROM email
+     WHERE body MATCH '"child product"'
+  }
+} {32 {3 0 207 5 3 1 213 7 3 0 245 5 3 1 251 7 3 0 409 5 3 1 415 7}}
+
+# Snippet generator tests
+#
+do_test fts3ac-4.1 {
+  execsql {
+    SELECT snippet(email) FROM email
+     WHERE email MATCH 'subject:gas reminder'
+  }
+} {{Alert Posted 10:00 AM November 20,2000: E-<b>GAS</b> Request <b>Reminder</b>}}
+do_test fts3ac-4.2 {
+  execsql {
+    SELECT snippet(email) FROM email
+     WHERE email MATCH 'christmas candlelight'
+  }
+} {{<b>...</b>here <b>Christmas</b> 
+eve?? They have an 11:00 a.m. service and a <b>candlelight</b> service<b>...</b>}}
+
+do_test fts3ac-4.3 {
+  execsql {
+    SELECT snippet(email) FROM email
+     WHERE email MATCH 'deal sheet potential reuse'
+  }
+} {{EOL-Accenture <b>Deal</b> <b>Sheet</b><b>...</b>asset base for <b>potential</b> <b>reuse</b>/ licensing
+     Contract negotiations<b>...</b>}}
+do_test fts3ac-4.4 {
+  execsql {
+    SELECT snippet(email,'<<<','>>>',' ') FROM email
+     WHERE email MATCH 'deal sheet potential reuse'
+  }
+} {{EOL-Accenture <<<Deal>>> <<<Sheet>>> asset base for <<<potential>>> <<<reuse>>>/ licensing
+     Contract negotiations }}
+do_test fts3ac-4.5 {
+  execsql {
+    SELECT snippet(email,'<<<','>>>',' ') FROM email
+     WHERE email MATCH 'first things'
+  }
+} {{Re: <<<First>>> Polish Deal! Congrats!  <<<Things>>> seem to be building rapidly now }}
+do_test fts3ac-4.6 {
+  execsql {
+    SELECT snippet(email) FROM email
+     WHERE email MATCH 'chris is here'
+  }
+} {{<b>...</b><b>chris</b>.germany@enron.com'" <<b>chris</b><b>...</b>bet this <b>is</b> next to<b>...</b>about going <b>here</b> Christmas 
+eve<b>...</b>}}
+do_test fts3ac-4.7 {
+  execsql {
+    SELECT snippet(email) FROM email
+     WHERE email MATCH '"pursuant to"'
+  }
+} {{Erin:
+
+<b>Pursuant</b> <b>to</b> your request, attached are the Schedule to the ISDA Master Agreement, together<b>...</b>}}
+do_test fts3ac-4.8 {
+  execsql {
+    SELECT snippet(email) FROM email
+     WHERE email MATCH 'ancillary load davis'
+  }
+} {{pete.<b>davis</b>@enron.com<b>...</b>3;  No <b>ancillary</b> schedules awarded<b>...</b>detected in <b>Load</b> schedule.
+
+    LOG<b>...</b>}}
+
+# Combinations of AND and OR operators:
+#
+do_test fts3ac-5.1 {
+  execsql {
+    SELECT snippet(email) FROM email
+     WHERE email MATCH 'questar enron OR com'
+  }
+} {{matt.smith@<b>enron</b>.<b>com</b><b>...</b>31 Keystone Receipts
+15 <b>Questar</b> Pipeline
+40 Rockies<b>...</b>}}
+
+do_test fts3ac-5.2 {
+  execsql {
+    SELECT snippet(email) FROM email
+     WHERE email MATCH 'enron OR com questar'
+  }
+} {{matt.smith@<b>enron</b>.<b>com</b><b>...</b>31 Keystone Receipts
+15 <b>Questar</b> Pipeline
+40 Rockies<b>...</b>}}
+
+#-------------------------------------------------------------------------
+# Test a problem reported on the mailing list.
+#
+do_test fts3ac-6.1 {
+  execsql {
+    CREATE VIRTUAL TABLE ft USING fts3(one, two);
+    INSERT INTO ft VALUES('', 'foo');
+    INSERT INTO ft VALUES('foo', 'foo');
+    SELECT offsets(ft) FROM ft WHERE ft MATCH 'foo';
+  }
+} {{1 0 0 3} {0 0 0 3 1 0 0 3}}
+do_test fts3ac-6.2 {
+  execsql {
+    DELETE FROM ft WHERE one = 'foo';
+    SELECT offsets(ft) FROM ft WHERE ft MATCH 'foo';
+  }
+} {{1 0 0 3}}
+
+finish_test
diff --git a/test/fts3ad.test b/test/fts3ad.test
new file mode 100644
index 0000000000000000000000000000000000000000..e373339d4e74b10991efac46192c1e00c397a475
--- /dev/null
+++ b/test/fts3ad.test
@@ -0,0 +1,106 @@
+# 2006 October 1
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS3 module, and in particular
+# the Porter stemmer.
+#
+# $Id: fts3ad.test,v 1.1 2007/08/20 17:38:42 shess Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+do_test fts3ad-1.1 {
+  execsql {
+    CREATE VIRTUAL TABLE t1 USING fts3(content, tokenize porter);
+    INSERT INTO t1(rowid, content) VALUES(1, 'running and jumping');
+    SELECT rowid FROM t1 WHERE content MATCH 'run jump';
+  }
+} {1}
+do_test fts3ad-1.2 {
+  execsql {
+    SELECT snippet(t1) FROM t1 WHERE t1 MATCH 'run jump';
+  }
+} {{<b>running</b> and <b>jumping</b>}}
+do_test fts3ad-1.3 {
+  execsql {
+    INSERT INTO t1(rowid, content) 
+          VALUES(2, 'abcdefghijklmnopqrstuvwyxz');
+    SELECT rowid, snippet(t1) FROM t1 WHERE t1 MATCH 'abcdefghijqrstuvwyxz'
+  }
+} {2 <b>abcdefghijklmnopqrstuvwyxz</b>}
+do_test fts3ad-1.4 {
+  execsql {
+    SELECT rowid, snippet(t1) FROM t1 WHERE t1 MATCH 'abcdefghijXXXXqrstuvwyxz'
+  }
+} {2 <b>abcdefghijklmnopqrstuvwyxz</b>}
+do_test fts3ad-1.5 {
+  execsql {
+    INSERT INTO t1(rowid, content) 
+          VALUES(3, 'The value is 123456789');
+    SELECT rowid, snippet(t1) FROM t1 WHERE t1 MATCH '123789'
+  }
+} {3 {The value is <b>123456789</b>}}
+do_test fts3ad-1.6 {
+  execsql {
+    SELECT rowid, snippet(t1) FROM t1 WHERE t1 MATCH '123000000789'
+  }
+} {3 {The value is <b>123456789</b>}}
+
+do_test fts3ad-2.1 {
+  execsql {
+    DROP TABLE t1;
+    CREATE VIRTUAL TABLE t1 USING fts3(content, tokenize    porter);
+    INSERT INTO t1(rowid, content) VALUES(1, 'running and jumping');
+    SELECT rowid FROM t1 WHERE content MATCH 'run jump';
+  }
+} {1}
+do_test fts3ad-2.2 {
+  execsql {
+    DROP TABLE t1;
+    CREATE VIRTUAL TABLE t1 USING fts3(content, tokenize=   porter);
+    INSERT INTO t1(rowid, content) VALUES(1, 'running and jumping');
+    SELECT rowid FROM t1 WHERE content MATCH 'run jump';
+  }
+} {1}
+do_test fts3ad-2.3 {
+  execsql {
+    DROP TABLE t1;
+    CREATE VIRTUAL TABLE t1 USING fts3(content, tokenize=   simple);
+    INSERT INTO t1(rowid, content) VALUES(1, 'running and jumping');
+    SELECT rowid FROM t1 WHERE content MATCH 'run jump';
+  }
+} {}
+do_test fts3ad-2.4 {
+  execsql {
+    DROP TABLE t1;
+    CREATE VIRTUAL TABLE t1 USING fts3(content,   tokenize=   porter);
+    INSERT INTO t1(rowid, content) VALUES(1, 'running and jumping');
+    SELECT rowid FROM t1 WHERE content MATCH 'run jump';
+  }
+} {1}
+do_test fts3ad-2.5 {
+  execsql {
+    DROP TABLE t1;
+    CREATE VIRTUAL TABLE t1 USING fts3(content,	   tokenize =   porter);
+    INSERT INTO t1(rowid, content) VALUES(1, 'running and jumping');
+    SELECT rowid FROM t1 WHERE content MATCH 'run jump';
+  }
+} {1}
+
+
+finish_test
diff --git a/test/fts3ae.test b/test/fts3ae.test
new file mode 100644
index 0000000000000000000000000000000000000000..b87268897df8ea00f9294aa291e1fb768af0c902
--- /dev/null
+++ b/test/fts3ae.test
@@ -0,0 +1,85 @@
+# 2006 October 19
+#
+# The author disclaims copyright to this source code.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing deletions in the FTS3 module.
+#
+# $Id: fts3ae.test,v 1.1 2007/08/20 17:38:42 shess Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+# Construct a full-text search table containing keywords which are the
+# ordinal numbers of the bit positions set for a sequence of integers,
+# which are used for the rowid.  There are a total of 30 INSERT and
+# DELETE statements, so that we'll test both the segmentMerge() merge
+# (over the first 16) and the termSelect() merge (over the level-1
+# segment and 14 level-0 segments).
+db eval {
+  CREATE VIRTUAL TABLE t1 USING fts3(content);
+  INSERT INTO t1 (rowid, content) VALUES(1, 'one');
+  INSERT INTO t1 (rowid, content) VALUES(2, 'two');
+  INSERT INTO t1 (rowid, content) VALUES(3, 'one two');
+  INSERT INTO t1 (rowid, content) VALUES(4, 'three');
+  DELETE FROM t1 WHERE rowid = 1;
+  INSERT INTO t1 (rowid, content) VALUES(5, 'one three');
+  INSERT INTO t1 (rowid, content) VALUES(6, 'two three');
+  INSERT INTO t1 (rowid, content) VALUES(7, 'one two three');
+  DELETE FROM t1 WHERE rowid = 4;
+  INSERT INTO t1 (rowid, content) VALUES(8, 'four');
+  INSERT INTO t1 (rowid, content) VALUES(9, 'one four');
+  INSERT INTO t1 (rowid, content) VALUES(10, 'two four');
+  DELETE FROM t1 WHERE rowid = 7;
+  INSERT INTO t1 (rowid, content) VALUES(11, 'one two four');
+  INSERT INTO t1 (rowid, content) VALUES(12, 'three four');
+  INSERT INTO t1 (rowid, content) VALUES(13, 'one three four');
+  DELETE FROM t1 WHERE rowid = 10;
+  INSERT INTO t1 (rowid, content) VALUES(14, 'two three four');
+  INSERT INTO t1 (rowid, content) VALUES(15, 'one two three four');
+  INSERT INTO t1 (rowid, content) VALUES(16, 'five');
+  DELETE FROM t1 WHERE rowid = 13;
+  INSERT INTO t1 (rowid, content) VALUES(17, 'one five');
+  INSERT INTO t1 (rowid, content) VALUES(18, 'two five');
+  INSERT INTO t1 (rowid, content) VALUES(19, 'one two five');
+  DELETE FROM t1 WHERE rowid = 16;
+  INSERT INTO t1 (rowid, content) VALUES(20, 'three five');
+  INSERT INTO t1 (rowid, content) VALUES(21, 'one three five');
+  INSERT INTO t1 (rowid, content) VALUES(22, 'two three five');
+  DELETE FROM t1 WHERE rowid = 19;
+  DELETE FROM t1 WHERE rowid = 22;
+}
+
+do_test fts3ae-1.1 {
+  execsql {SELECT COUNT(*) FROM t1}
+} {14}
+
+do_test fts3ae-2.1 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH 'one'}
+} {3 5 9 11 15 17 21}
+
+do_test fts3ae-2.2 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH 'two'}
+} {2 3 6 11 14 15 18}
+
+do_test fts3ae-2.3 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH 'three'}
+} {5 6 12 14 15 20 21}
+
+do_test fts3ae-2.4 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH 'four'}
+} {8 9 11 12 14 15}
+
+do_test fts3ae-2.5 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH 'five'}
+} {17 18 20 21}
+
+finish_test
diff --git a/test/fts3af.test b/test/fts3af.test
new file mode 100644
index 0000000000000000000000000000000000000000..221ac4c3bcab5b1f8ec821bab8fbd788189c9e92
--- /dev/null
+++ b/test/fts3af.test
@@ -0,0 +1,90 @@
+# 2006 October 19
+#
+# The author disclaims copyright to this source code.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing updates in the FTS3 module.
+#
+# $Id: fts3af.test,v 1.1 2007/08/20 17:38:42 shess Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+# Construct a full-text search table containing keywords which are the
+# ordinal numbers of the bit positions set for a sequence of integers,
+# which are used for the rowid.  There are a total of 31 INSERT,
+# UPDATE, and DELETE statements, so that we'll test both the
+# segmentMerge() merge (over the first 16) and the termSelect() merge
+# (over the level-1 segment and 15 level-0 segments).
+db eval {
+  CREATE VIRTUAL TABLE t1 USING fts3(content);
+  INSERT INTO t1 (rowid, content) VALUES(1, 'one');
+  INSERT INTO t1 (rowid, content) VALUES(2, 'two');
+  INSERT INTO t1 (rowid, content) VALUES(3, 'one two');
+  INSERT INTO t1 (rowid, content) VALUES(4, 'three');
+  INSERT INTO t1 (rowid, content) VALUES(5, 'one three');
+  INSERT INTO t1 (rowid, content) VALUES(6, 'two three');
+  INSERT INTO t1 (rowid, content) VALUES(7, 'one two three');
+  DELETE FROM t1 WHERE rowid = 4;
+  INSERT INTO t1 (rowid, content) VALUES(8, 'four');
+  UPDATE t1 SET content = 'update one three' WHERE rowid = 1;
+  INSERT INTO t1 (rowid, content) VALUES(9, 'one four');
+  INSERT INTO t1 (rowid, content) VALUES(10, 'two four');
+  DELETE FROM t1 WHERE rowid = 7;
+  INSERT INTO t1 (rowid, content) VALUES(11, 'one two four');
+  INSERT INTO t1 (rowid, content) VALUES(12, 'three four');
+  INSERT INTO t1 (rowid, content) VALUES(13, 'one three four');
+  DELETE FROM t1 WHERE rowid = 10;
+  INSERT INTO t1 (rowid, content) VALUES(14, 'two three four');
+  INSERT INTO t1 (rowid, content) VALUES(15, 'one two three four');
+  UPDATE t1 SET content = 'update two five' WHERE rowid = 8;
+  INSERT INTO t1 (rowid, content) VALUES(16, 'five');
+  DELETE FROM t1 WHERE rowid = 13;
+  INSERT INTO t1 (rowid, content) VALUES(17, 'one five');
+  INSERT INTO t1 (rowid, content) VALUES(18, 'two five');
+  INSERT INTO t1 (rowid, content) VALUES(19, 'one two five');
+  DELETE FROM t1 WHERE rowid = 16;
+  INSERT INTO t1 (rowid, content) VALUES(20, 'three five');
+  INSERT INTO t1 (rowid, content) VALUES(21, 'one three five');
+  INSERT INTO t1 (rowid, content) VALUES(22, 'two three five');
+  DELETE FROM t1 WHERE rowid = 19;
+  UPDATE t1 SET content = 'update' WHERE rowid = 15;
+}
+
+do_test fts3af-1.1 {
+  execsql {SELECT COUNT(*) FROM t1}
+} {16}
+
+do_test fts3af-2.0 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH 'update'}
+} {1 8 15}
+
+do_test fts3af-2.1 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH 'one'}
+} {1 3 5 9 11 17 21}
+
+do_test fts3af-2.2 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH 'two'}
+} {2 3 6 8 11 14 18 22}
+
+do_test fts3af-2.3 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH 'three'}
+} {1 5 6 12 14 20 21 22}
+
+do_test fts3af-2.4 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH 'four'}
+} {9 11 12 14}
+
+do_test fts3af-2.5 {
+  execsql {SELECT rowid FROM t1 WHERE content MATCH 'five'}
+} {8 17 18 20 21 22}
+
+finish_test
diff --git a/test/fts3ag.test b/test/fts3ag.test
new file mode 100644
index 0000000000000000000000000000000000000000..9b658d19df3dbf6e4825ce098f68684bbcb7b0fc
--- /dev/null
+++ b/test/fts3ag.test
@@ -0,0 +1,93 @@
+# 2006 October 19
+#
+# The author disclaims copyright to this source code.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The focus
+# of this script is testing handling of edge cases for various doclist
+# merging functions in the FTS3 module query logic.
+#
+# $Id: fts3ag.test,v 1.2 2007/11/16 00:23:08 shess Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+db eval {
+  CREATE VIRTUAL TABLE t1 USING fts3(content);
+  INSERT INTO t1 (rowid, content) VALUES(1, 'this is a test');
+  INSERT INTO t1 (rowid, content) VALUES(2, 'also a test');
+}
+
+# No hits at all.  Returns empty doclists from termSelect().
+do_test fts3ag-1.1 {
+  execsql {SELECT rowid FROM t1 WHERE t1 MATCH 'something'}
+} {}
+
+# Empty left in docListExceptMerge().
+do_test fts3ag-1.2 {
+  execsql {SELECT rowid FROM t1 WHERE t1 MATCH '-this something'}
+} {}
+
+# Empty right in docListExceptMerge().
+do_test fts3ag-1.3 {
+  execsql {SELECT rowid FROM t1 WHERE t1 MATCH 'this -something'}
+} {1}
+
+# Empty left in docListPhraseMerge().
+do_test fts3ag-1.4 {
+  execsql {SELECT rowid FROM t1 WHERE t1 MATCH '"this something"'}
+} {}
+
+# Empty right in docListPhraseMerge().
+do_test fts3ag-1.5 {
+  execsql {SELECT rowid FROM t1 WHERE t1 MATCH '"something is"'}
+} {}
+
+# Empty left in docListOrMerge().
+do_test fts3ag-1.6 {
+  execsql {SELECT rowid FROM t1 WHERE t1 MATCH 'something OR this'}
+} {1}
+
+# Empty right in docListOrMerge().
+do_test fts3ag-1.7 {
+  execsql {SELECT rowid FROM t1 WHERE t1 MATCH 'this OR something'}
+} {1}
+
+# Empty left in docListAndMerge().
+do_test fts3ag-1.8 {
+  execsql {SELECT rowid FROM t1 WHERE t1 MATCH 'something this'}
+} {}
+
+# Empty right in docListAndMerge().
+do_test fts3ag-1.9 {
+  execsql {SELECT rowid FROM t1 WHERE t1 MATCH 'this something'}
+} {}
+
+# No support for all-except queries.
+do_test fts3ag-1.10 {
+  catchsql {SELECT rowid FROM t1 WHERE t1 MATCH '-this -something'}
+} {1 {malformed MATCH expression: [-this -something]}}
+
+# Test that docListOrMerge() correctly handles reaching the end of one
+# doclist before it reaches the end of the other.
+do_test fts3ag-1.11 {
+  execsql {SELECT rowid FROM t1 WHERE t1 MATCH 'this OR also'}
+} {1 2}
+do_test fts3ag-1.12 {
+  execsql {SELECT rowid FROM t1 WHERE t1 MATCH 'also OR this'}
+} {1 2}
+
+# Empty left and right in docListOrMerge().  Each term matches neither
+# row, and when combined there was an assertion failure.
+do_test fts3ag-1.13 {
+  execsql {SELECT rowid FROM t1 WHERE t1 MATCH 'something OR nothing'}
+} {}
+
+finish_test
diff --git a/test/fts3ah.test b/test/fts3ah.test
new file mode 100644
index 0000000000000000000000000000000000000000..3810ec37b5c8c5bd35683c5537520b6b1f59d299
--- /dev/null
+++ b/test/fts3ah.test
@@ -0,0 +1,71 @@
+# 2006 October 31 
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The focus
+# here is testing correct handling of very long terms.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If SQLITE_ENABLE_FTS3 is not defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+# Generate a document of bigterms based on characters from the list
+# chars.
+proc bigtermdoc {chars len} {
+  set doc ""
+  foreach char $chars {
+    append doc " " [string repeat $char $len]
+  }
+  return $doc
+}
+
+set len 5000
+set doc1 [bigtermdoc {a b c d} $len]
+set doc2 [bigtermdoc {b d e f} $len]
+set doc3 [bigtermdoc {a c e} $len]
+
+set aterm [string repeat a $len]
+set bterm [string repeat b $len]
+set xterm [string repeat x $len]
+
+db eval {
+  CREATE VIRTUAL TABLE t1 USING fts3(content);
+  INSERT INTO t1 (rowid, content) VALUES(1, $doc1);
+  INSERT INTO t1 (rowid, content) VALUES(2, $doc2);
+  INSERT INTO t1 (rowid, content) VALUES(3, $doc3);
+}
+
+# No hits at all.  Returns empty doclists from termSelect().
+do_test fts3ah-1.1 {
+  execsql {SELECT rowid FROM t1 WHERE t1 MATCH 'something'}
+} {}
+
+do_test fts3ah-1.2 {
+  execsql {SELECT rowid FROM t1 WHERE t1 MATCH $aterm}
+} {1 3}
+
+do_test fts3ah-1.3 {
+  execsql {SELECT rowid FROM t1 WHERE t1 MATCH $xterm}
+} {}
+
+do_test fts3ah-1.4 {
+  execsql "SELECT rowid FROM t1 WHERE t1 MATCH '$aterm -$xterm'"
+} {1 3}
+
+do_test fts3ah-1.5 {
+  execsql "SELECT rowid FROM t1 WHERE t1 MATCH '\"$aterm $bterm\"'"
+} {1}
+
+finish_test
diff --git a/test/fts3ai.test b/test/fts3ai.test
new file mode 100644
index 0000000000000000000000000000000000000000..b17b5bdd553d91993341463f17de60a30a521002
--- /dev/null
+++ b/test/fts3ai.test
@@ -0,0 +1,92 @@
+# 2007 January 17
+#
+# The author disclaims copyright to this source code.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite fts3 library.  The
+# focus here is testing handling of UPDATE when using UTF-16-encoded
+# databases.
+#
+# $Id: fts3ai.test,v 1.1 2007/08/20 17:38:42 shess Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+ifcapable !utf16 {
+  finish_test
+  return
+}
+
+# Return the UTF-16 representation of the supplied UTF-8 string $str.
+# If $nt is true, append two 0x00 bytes as a nul terminator.
+# NOTE(shess) Copied from capi3.test.
+proc utf16 {str {nt 1}} {
+  set r [encoding convertto unicode $str]
+  if {$nt} {
+    append r "\x00\x00"
+  }
+  return $r
+}
+
+db eval {
+  PRAGMA encoding = "UTF-16le";
+  CREATE VIRTUAL TABLE t1 USING fts3(content);
+}
+
+do_test fts3ai-1.0 {
+  execsql {PRAGMA encoding}
+} {UTF-16le}
+
+do_test fts3ai-1.1 {
+  execsql {INSERT INTO t1 (rowid, content) VALUES(1, 'one')}
+  execsql {SELECT content FROM t1 WHERE rowid = 1}
+} {one}
+
+do_test fts3ai-1.2 {
+  set sql "INSERT INTO t1 (rowid, content) VALUES(2, 'two')"
+  set STMT [sqlite3_prepare $DB $sql -1 TAIL]
+  sqlite3_step $STMT
+  sqlite3_finalize $STMT
+  execsql {SELECT content FROM t1 WHERE rowid = 2}
+} {two}
+
+do_test fts3ai-1.3 {
+  set sql "INSERT INTO t1 (rowid, content) VALUES(3, 'three')"
+  set STMT [sqlite3_prepare $DB $sql -1 TAIL]
+  sqlite3_step $STMT
+  sqlite3_finalize $STMT
+  set sql "UPDATE t1 SET content = 'trois' WHERE rowid = 3"
+  set STMT [sqlite3_prepare $DB $sql -1 TAIL]
+  sqlite3_step $STMT
+  sqlite3_finalize $STMT
+  execsql {SELECT content FROM t1 WHERE rowid = 3}
+} {trois}
+
+do_test fts3ai-1.4 {
+  set sql16 [utf16 {INSERT INTO t1 (rowid, content) VALUES(4, 'four')}]
+  set STMT [sqlite3_prepare16 $DB $sql16 -1 TAIL]
+  sqlite3_step $STMT
+  sqlite3_finalize $STMT
+  execsql {SELECT content FROM t1 WHERE rowid = 4}
+} {four}
+
+do_test fts3ai-1.5 {
+  set sql16 [utf16 {INSERT INTO t1 (rowid, content) VALUES(5, 'five')}]
+  set STMT [sqlite3_prepare16 $DB $sql16 -1 TAIL]
+  sqlite3_step $STMT
+  sqlite3_finalize $STMT
+  set sql "UPDATE t1 SET content = 'cinq' WHERE rowid = 5"
+  set STMT [sqlite3_prepare $DB $sql -1 TAIL]
+  sqlite3_step $STMT
+  sqlite3_finalize $STMT
+  execsql {SELECT content FROM t1 WHERE rowid = 5}
+} {cinq}
+
+finish_test
diff --git a/test/fts3aj.test b/test/fts3aj.test
new file mode 100644
index 0000000000000000000000000000000000000000..0c89691162434d08ea00a364c63d9bcac8e6ade8
--- /dev/null
+++ b/test/fts3aj.test
@@ -0,0 +1,87 @@
+# 2007 February 6
+#
+# The author disclaims copyright to this source code.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  This
+# tests creating fts3 tables in an attached database.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+# Clean up anything left over from a previous pass.
+forcedelete test2.db
+forcedelete test2.db-journal
+sqlite3 db2 test2.db
+
+db eval {
+  CREATE VIRTUAL TABLE t3 USING fts3(content);
+  INSERT INTO t3 (rowid, content) VALUES(1, 'hello world');
+}
+
+db2 eval {
+  CREATE VIRTUAL TABLE t1 USING fts3(content);
+  INSERT INTO t1 (rowid, content) VALUES(1, 'hello world');
+  INSERT INTO t1 (rowid, content) VALUES(2, 'hello there');
+  INSERT INTO t1 (rowid, content) VALUES(3, 'cruel world');
+}
+
+# This has always worked because the t1_* tables used by fts3 will be
+# the defaults.
+do_test fts3aj-1.1 {
+  execsql {
+    ATTACH DATABASE 'test2.db' AS two;
+    SELECT rowid FROM t1 WHERE t1 MATCH 'hello';
+    DETACH DATABASE two;
+  }
+} {1 2}
+# Make certain we're detached if there was an error.
+catch {db eval {DETACH DATABASE two}}
+
+# In older code, this appears to work fine, but the t2_* tables used
+# by fts3 will be created in database 'main' instead of database
+# 'two'.  It appears to work fine because the tables end up being the
+# defaults, but obviously is badly broken if you hope to use things
+# other than in the exact same ATTACH setup.
+do_test fts3aj-1.2 {
+  execsql {
+    ATTACH DATABASE 'test2.db' AS two;
+    CREATE VIRTUAL TABLE two.t2 USING fts3(content);
+    INSERT INTO t2 (rowid, content) VALUES(1, 'hello world');
+    INSERT INTO t2 (rowid, content) VALUES(2, 'hello there');
+    INSERT INTO t2 (rowid, content) VALUES(3, 'cruel world');
+    SELECT rowid FROM t2 WHERE t2 MATCH 'hello';
+    DETACH DATABASE two;
+  }
+} {1 2}
+catch {db eval {DETACH DATABASE two}}
+
+# In older code, this broke because the fts3 code attempted to create
+# t3_* tables in database 'main', but they already existed.  Normally
+# this wouldn't happen without t3 itself existing, in which case the
+# fts3 code would never be called in the first place.
+do_test fts3aj-1.3 {
+  execsql {
+    ATTACH DATABASE 'test2.db' AS two;
+
+    CREATE VIRTUAL TABLE two.t3 USING fts3(content);
+    INSERT INTO two.t3 (rowid, content) VALUES(2, 'hello there');
+    INSERT INTO two.t3 (rowid, content) VALUES(3, 'cruel world');
+    SELECT rowid FROM two.t3 WHERE t3 MATCH 'hello';
+
+    DETACH DATABASE two;
+  } db2
+} {2}
+catch {db eval {DETACH DATABASE two}}
+
+catch {db2 close}
+forcedelete test2.db
+
+finish_test
diff --git a/test/fts3ak.test b/test/fts3ak.test
new file mode 100644
index 0000000000000000000000000000000000000000..080efe52b57a6b080c9ff43432d4b0d3763bb3f3
--- /dev/null
+++ b/test/fts3ak.test
@@ -0,0 +1,105 @@
+# 2007 March 9
+#
+# The author disclaims copyright to this source code.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  These
+# make sure that fts3 insertion buffering is fully transparent when
+# using transactions.
+#
+# $Id: fts3ak.test,v 1.1 2007/08/20 17:38:42 shess Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+db eval {
+  CREATE VIRTUAL TABLE t1 USING fts3(content);
+  INSERT INTO t1 (rowid, content) VALUES(1, 'hello world');
+  INSERT INTO t1 (rowid, content) VALUES(2, 'hello there');
+  INSERT INTO t1 (rowid, content) VALUES(3, 'cruel world');
+}
+
+# Test that possibly-buffered inserts went through after commit.
+do_test fts3ak-1.1 {
+  execsql {
+    BEGIN TRANSACTION;
+    INSERT INTO t1 (rowid, content) VALUES(4, 'false world');
+    INSERT INTO t1 (rowid, content) VALUES(5, 'false door');
+    COMMIT TRANSACTION;
+    SELECT rowid FROM t1 WHERE t1 MATCH 'world';
+  }
+} {1 3 4}
+
+# Test that buffered inserts are seen by selects in the same
+# transaction.
+do_test fts3ak-1.2 {
+  execsql {
+    BEGIN TRANSACTION;
+    INSERT INTO t1 (rowid, content) VALUES(6, 'another world');
+    INSERT INTO t1 (rowid, content) VALUES(7, 'another test');
+    SELECT rowid FROM t1 WHERE t1 MATCH 'world';
+    COMMIT TRANSACTION;
+  }
+} {1 3 4 6}
+
+# Test that buffered inserts are seen within a transaction.  This is
+# really the same test as 1.2.
+do_test fts3ak-1.3 {
+  execsql {
+    BEGIN TRANSACTION;
+    INSERT INTO t1 (rowid, content) VALUES(8, 'second world');
+    INSERT INTO t1 (rowid, content) VALUES(9, 'second sight');
+    SELECT rowid FROM t1 WHERE t1 MATCH 'world';
+    ROLLBACK TRANSACTION;
+  }
+} {1 3 4 6 8}
+
+# Double-check that the previous result doesn't persist past the
+# rollback!
+do_test fts3ak-1.4 {
+  execsql {
+    SELECT rowid FROM t1 WHERE t1 MATCH 'world';
+  }
+} {1 3 4 6}
+
+# Test it all together.
+do_test fts3ak-1.5 {
+  execsql {
+    BEGIN TRANSACTION;
+    INSERT INTO t1 (rowid, content) VALUES(10, 'second world');
+    INSERT INTO t1 (rowid, content) VALUES(11, 'second sight');
+    ROLLBACK TRANSACTION;
+    SELECT rowid FROM t1 WHERE t1 MATCH 'world';
+  }
+} {1 3 4 6}
+
+# Test that the obvious case works.
+do_test fts3ak-1.6 {
+  execsql {
+    BEGIN;
+    INSERT INTO t1 (rowid, content) VALUES(12, 'third world');
+    COMMIT;
+    SELECT rowid FROM t1 WHERE t1 MATCH 'third';
+  }
+} {12}
+
+# This is exactly the same as the previous test, except that older
+# code loses the INSERT due to an SQLITE_SCHEMA error.
+do_test fts3ak-1.7 {
+  execsql {
+    BEGIN;
+    INSERT INTO t1 (rowid, content) VALUES(13, 'third dimension');
+    CREATE TABLE x (c);
+    COMMIT;
+    SELECT rowid FROM t1 WHERE t1 MATCH 'dimension';
+  }
+} {13}
+
+finish_test
diff --git a/test/fts3al.test b/test/fts3al.test
new file mode 100644
index 0000000000000000000000000000000000000000..02cc0d1695297c7394e97be5bb971e8b1b619973
--- /dev/null
+++ b/test/fts3al.test
@@ -0,0 +1,73 @@
+# 2007 March 28
+#
+# The author disclaims copyright to this source code.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The focus
+# of this script is testing isspace/isalnum/tolower problems with the
+# FTS3 module.  Unfortunately, this code isn't a really principled set
+# of tests, because it is impossible to know where new uses of these
+# functions might appear.
+#
+# $Id: fts3al.test,v 1.2 2007/12/13 21:54:11 drh Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+# Tests that startsWith() (calls isspace, tolower, isalnum) can handle
+# hi-bit chars.  parseSpec() also calls isalnum here.
+do_test fts3al-1.1 {
+  execsql "CREATE VIRTUAL TABLE t1 USING fts3(content, \x80)"
+} {}
+
+# Additionally tests isspace() call in getToken(), and isalnum() call
+# in tokenListToIdList().
+do_test fts3al-1.2 {
+  catch {
+    execsql "CREATE VIRTUAL TABLE t2 USING fts3(content, tokenize \x80)"
+  }
+  sqlite3_errmsg $DB
+} "unknown tokenizer: \x80"
+
+# Additionally test final isalnum() in startsWith().
+do_test fts3al-1.3 {
+  execsql "CREATE VIRTUAL TABLE t3 USING fts3(content, tokenize\x80)"
+} {}
+
+# The snippet-generation code has calls to isspace() which are sort of
+# hard to get to.  It finds convenient breakpoints by starting ~40
+# chars before and after the matched term, and scanning ~10 chars
+# around that position for isspace() characters.  The long word with
+# embedded hi-bit chars causes one of these isspace() calls to be
+# exercised.  The version with a couple extra spaces should cause the
+# other isspace() call to be exercised.  [Both cases have been tested
+# in the debugger, but I'm hoping to continue to catch it if simple
+# constant changes change things slightly.
+#
+# The trailing and leading hi-bit chars help with code which tests for
+# isspace() to coalesce multiple spaces.
+#
+# UPDATE: The above is no longer true; there is no such code in fts3.
+# But leave the test in just the same.
+# 
+
+set word "\x80xxxxx\x80xxxxx\x80xxxxx\x80xxxxx\x80xxxxx\x80xxxxx\x80"
+set phrase1 "$word $word $word target $word $word $word"
+set phrase2 "$word $word $word    target    $word $word $word"
+
+db eval {CREATE VIRTUAL TABLE t4 USING fts3(content)}
+db eval "INSERT INTO t4 (content) VALUES ('$phrase1')"
+db eval "INSERT INTO t4 (content) VALUES ('$phrase2')"
+
+do_test fts3al-1.4 {
+  execsql {SELECT rowid, length(snippet(t4)) FROM t4 WHERE t4 MATCH 'target'}
+} {1 241 2 247}
+
+finish_test
diff --git a/test/fts3am.test b/test/fts3am.test
new file mode 100644
index 0000000000000000000000000000000000000000..4a09cd80fb538ce375ea81afd37a6465f626973a
--- /dev/null
+++ b/test/fts3am.test
@@ -0,0 +1,65 @@
+# 2007 April 9
+#
+# The author disclaims copyright to this source code.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  fts3
+# DELETE handling assumed all fields were non-null.  This was not
+# the intention at all.
+#
+# $Id: fts3am.test,v 1.1 2007/08/20 17:38:42 shess Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+db eval {
+  CREATE VIRTUAL TABLE t1 USING fts3(col_a, col_b);
+
+  INSERT INTO t1(rowid, col_a, col_b) VALUES(1, 'testing', 'testing');
+  INSERT INTO t1(rowid, col_a, col_b) VALUES(2, 'only a', null);
+  INSERT INTO t1(rowid, col_a, col_b) VALUES(3, null, 'only b');
+  INSERT INTO t1(rowid, col_a, col_b) VALUES(4, null, null);
+}
+
+do_test fts3am-1.0 {
+  execsql {
+    SELECT COUNT(col_a), COUNT(col_b), COUNT(*) FROM t1;
+  }
+} {2 2 4}
+
+do_test fts3am-1.1 {
+  execsql {
+    DELETE FROM t1 WHERE rowid = 1;
+    SELECT COUNT(col_a), COUNT(col_b), COUNT(*) FROM t1;
+  }
+} {1 1 3}
+
+do_test fts3am-1.2 {
+  execsql {
+    DELETE FROM t1 WHERE rowid = 2;
+    SELECT COUNT(col_a), COUNT(col_b), COUNT(*) FROM t1;
+  }
+} {0 1 2}
+
+do_test fts3am-1.3 {
+  execsql {
+    DELETE FROM t1 WHERE rowid = 3;
+    SELECT COUNT(col_a), COUNT(col_b), COUNT(*) FROM t1;
+  }
+} {0 0 1}
+
+do_test fts3am-1.4 {
+  execsql {
+    DELETE FROM t1 WHERE rowid = 4;
+    SELECT COUNT(col_a), COUNT(col_b), COUNT(*) FROM t1;
+  }
+} {0 0 0}
+
+finish_test
diff --git a/test/fts3an.test b/test/fts3an.test
new file mode 100644
index 0000000000000000000000000000000000000000..521102776718fe2215e0028a68d3d99e83524c98
--- /dev/null
+++ b/test/fts3an.test
@@ -0,0 +1,218 @@
+# 2007 April 26
+#
+# The author disclaims copyright to this source code.
+#
+#*************************************************************************
+# This file implements tests for prefix-searching in the fts3
+# component of the SQLite library.
+#
+# $Id: fts3an.test,v 1.2 2007/12/13 21:54:11 drh Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+# A large string to prime the pump with.
+set text {
+  Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Maecenas
+  iaculis mollis ipsum. Praesent rhoncus placerat justo. Duis non quam
+  sed turpis posuere placerat. Curabitur et lorem in lorem porttitor
+  aliquet. Pellentesque bibendum tincidunt diam. Vestibulum blandit
+  ante nec elit. In sapien diam, facilisis eget, dictum sed, viverra
+  at, felis. Vestibulum magna. Sed magna dolor, vestibulum rhoncus,
+  ornare vel, vulputate sit amet, felis. Integer malesuada, tellus at
+  luctus gravida, diam nunc porta nibh, nec imperdiet massa metus eu
+  lectus. Aliquam nisi. Nunc fringilla nulla at lectus. Suspendisse
+  potenti. Cum sociis natoque penatibus et magnis dis parturient
+  montes, nascetur ridiculus mus. Pellentesque odio nulla, feugiat eu,
+  suscipit nec, consequat quis, risus.
+}
+
+db eval {
+  CREATE VIRTUAL TABLE t1 USING fts3(c);
+
+  INSERT INTO t1(rowid, c) VALUES(1, $text);
+  INSERT INTO t1(rowid, c) VALUES(2, 'Another lovely row');
+}
+
+# Exact match
+do_test fts3an-1.1 {
+  execsql "SELECT rowid FROM t1 WHERE t1 MATCH 'lorem'"
+} {1}
+
+# And a prefix
+do_test fts3an-1.2 {
+  execsql "SELECT rowid FROM t1 WHERE t1 MATCH 'lore*'"
+} {1}
+
+# Prefix includes exact match
+do_test fts3an-1.3 {
+  execsql "SELECT rowid FROM t1 WHERE t1 MATCH 'lorem*'"
+} {1}
+
+# Make certain everything isn't considered a prefix!
+do_test fts3an-1.4 {
+  execsql "SELECT rowid FROM t1 WHERE t1 MATCH 'lore'"
+} {}
+
+# Prefix across multiple rows.
+do_test fts3an-1.5 {
+  execsql "SELECT rowid FROM t1 WHERE t1 MATCH 'lo*'"
+} {1 2}
+
+# Likewise, with multiple hits in one document.
+do_test fts3an-1.6 {
+  execsql "SELECT rowid FROM t1 WHERE t1 MATCH 'l*'"
+} {1 2}
+
+# Prefix which should only hit one document.
+do_test fts3an-1.7 {
+  execsql "SELECT rowid FROM t1 WHERE t1 MATCH 'lov*'"
+} {2}
+
+# * not at end is dropped.
+do_test fts3an-1.8 {
+  execsql "SELECT rowid FROM t1 WHERE t1 MATCH 'lo *'"
+} {}
+
+# Stand-alone * is dropped.
+do_test fts3an-1.9 {
+  execsql "SELECT rowid FROM t1 WHERE t1 MATCH '*'"
+} {}
+
+# Phrase-query prefix.
+do_test fts3an-1.10 {
+  execsql "SELECT rowid FROM t1 WHERE t1 MATCH '\"lovely r*\"'"
+} {2}
+do_test fts3an-1.11 {
+  execsql "SELECT rowid FROM t1 WHERE t1 MATCH '\"lovely r\"'"
+} {}
+
+# Phrase query with multiple prefix matches.
+do_test fts3an-1.12 {
+  execsql "SELECT rowid FROM t1 WHERE t1 MATCH '\"a* l*\"'"
+} {1 2}
+
+# Phrase query with multiple prefix matches.
+do_test fts3an-1.13 {
+  execsql "SELECT rowid FROM t1 WHERE t1 MATCH '\"a* l* row\"'"
+} {2}
+
+
+
+
+# Test across updates (and, by implication, deletes).
+
+# Version of text without "lorem".
+regsub -all {[Ll]orem} $text '' ntext
+
+db eval {
+  CREATE VIRTUAL TABLE t2 USING fts3(c);
+
+  INSERT INTO t2(rowid, c) VALUES(1, $text);
+  INSERT INTO t2(rowid, c) VALUES(2, 'Another lovely row');
+  UPDATE t2 SET c = $ntext WHERE rowid = 1;
+}
+
+# Can't see lorem as an exact match.
+do_test fts3an-2.1 {
+  execsql "SELECT rowid FROM t2 WHERE t2 MATCH 'lorem'"
+} {}
+
+# Can't see a prefix of lorem, either.
+do_test fts3an-2.2 {
+  execsql "SELECT rowid FROM t2 WHERE t2 MATCH 'lore*'"
+} {}
+
+# Can see lovely in the other document.
+do_test fts3an-2.3 {
+  execsql "SELECT rowid FROM t2 WHERE t2 MATCH 'lo*'"
+} {2}
+
+# Can still see other hits.
+do_test fts3an-2.4 {
+  execsql "SELECT rowid FROM t2 WHERE t2 MATCH 'l*'"
+} {1 2}
+
+# Prefix which should only hit one document.
+do_test fts3an-2.5 {
+  execsql "SELECT rowid FROM t2 WHERE t2 MATCH 'lov*'"
+} {2}
+
+
+
+# Test with a segment which will have multiple levels in the tree.
+
+# Build a big document with lots of unique terms.
+set bigtext $text
+foreach c {a b c d e} {
+  regsub -all {[A-Za-z]+} $bigtext "&$c" t
+  append bigtext $t
+}
+
+# Populate a table with many copies of the big document, so that we
+# can test the number of hits found.  Populate $ret with the expected
+# hit counts for each row.  offsets() returns 4 elements for every
+# hit.  We'll have 6 hits for row 1, 1 for row 2, and 6*(2^5)==192 for
+# $bigtext.
+set ret {6 1}
+db eval {
+  BEGIN;
+  CREATE VIRTUAL TABLE t3 USING fts3(c);
+
+  INSERT INTO t3(rowid, c) VALUES(1, $text);
+  INSERT INTO t3(rowid, c) VALUES(2, 'Another lovely row');
+}
+for {set i 0} {$i<68} {incr i} {
+  db eval {INSERT INTO t3(rowid, c) VALUES(3+$i, $bigtext)}
+  lappend ret 192
+}
+db eval {COMMIT;}
+
+# Test that we get the expected number of hits.
+do_test fts3an-3.1 {
+  set t {}
+  db eval {SELECT offsets(t3) as o FROM t3 WHERE t3 MATCH 'l*'} {
+    set l [llength $o]
+    lappend t [expr {$l/4}]
+  }
+  set t
+} $ret
+
+# Test a boundary condition: More than 2^16 terms that match a searched for
+# prefix in a single segment.
+#
+puts "This next test can take a little while (~ 30 seconds)..."
+do_test fts3an-4.1 {
+  execsql { CREATE VIRTUAL TABLE ft USING fts3(x) }
+  execsql BEGIN
+    execsql { INSERT INTO ft VALUES(NULL) }
+    execsql { INSERT INTO ft SELECT * FROM ft }     ;#      2
+    execsql { INSERT INTO ft SELECT * FROM ft }     ;#      4
+    execsql { INSERT INTO ft SELECT * FROM ft }     ;#      8
+    execsql { INSERT INTO ft SELECT * FROM ft }     ;#     16
+    execsql { INSERT INTO ft SELECT * FROM ft }     ;#     32
+    execsql { INSERT INTO ft SELECT * FROM ft }     ;#     64
+    execsql { INSERT INTO ft SELECT * FROM ft }     ;#    128
+    execsql { INSERT INTO ft SELECT * FROM ft }     ;#    256
+    execsql { INSERT INTO ft SELECT * FROM ft }     ;#    512
+    execsql { INSERT INTO ft SELECT * FROM ft }     ;#   1024
+    execsql { INSERT INTO ft SELECT * FROM ft }     ;#   2048
+    execsql { INSERT INTO ft SELECT * FROM ft }     ;#   4096
+    execsql { INSERT INTO ft SELECT * FROM ft }     ;#   8192
+    execsql { INSERT INTO ft SELECT * FROM ft }     ;#  16384
+    execsql { INSERT INTO ft SELECT * FROM ft }     ;#  32768
+    execsql { INSERT INTO ft SELECT * FROM ft }     ;#  65536
+    execsql { INSERT INTO ft SELECT * FROM ft }     ;# 131072
+  execsql COMMIT
+  execsql { UPDATE ft SET x = 'abc' || rowid }
+  execsql { SELECT count(*) FROM ft WHERE x MATCH 'abc*' }
+} {131072}
+
+finish_test
diff --git a/test/fts3ao.test b/test/fts3ao.test
new file mode 100644
index 0000000000000000000000000000000000000000..d9b2233bfba5f5d4d9bcf5c2e399151b54def76e
--- /dev/null
+++ b/test/fts3ao.test
@@ -0,0 +1,250 @@
+# 2007 June 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS3 module.
+#
+# $Id: fts3ao.test,v 1.1 2007/08/20 17:38:42 shess Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If SQLITE_ENABLE_FTS3 is not defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+set ::testprefix fts3ao
+
+#---------------------------------------------------------------------
+# These tests, fts3ao-1.*, test that ticket #2429 is fixed.
+#
+db eval {
+  CREATE VIRTUAL TABLE t1 USING fts3(a, b, c);
+  INSERT INTO t1(a, b, c) VALUES('one three four', 'one four', 'one four two');
+}
+do_test fts3ao-1.1 {
+  execsql {
+    SELECT rowid, snippet(t1) FROM t1 WHERE c MATCH 'four';
+  }
+} {1 {one <b>four</b> two}}
+do_test fts3ao-1.2 {
+  execsql {
+    SELECT rowid, snippet(t1) FROM t1 WHERE b MATCH 'four';
+  }
+} {1 {one <b>four</b>}}
+do_test fts3ao-1.3 {
+  execsql {
+    SELECT rowid, snippet(t1) FROM t1 WHERE a MATCH 'four';
+  }
+} {1 {one three <b>four</b>}}
+
+#---------------------------------------------------------------------
+# Test that it is possible to rename an fts3 table.
+#
+do_test fts3ao-2.1 {
+  execsql { SELECT tbl_name FROM sqlite_master WHERE type = 'table'}
+} {t1 t1_content t1_segments t1_segdir}
+do_test fts3ao-2.2 {
+  execsql { ALTER TABLE t1 RENAME to fts_t1; }
+} {}
+do_test fts3ao-2.3 {
+  execsql { SELECT rowid, snippet(fts_t1) FROM fts_t1 WHERE a MATCH 'four'; }
+} {1 {one three <b>four</b>}}
+do_test fts3ao-2.4 {
+  execsql { SELECT tbl_name FROM sqlite_master WHERE type = 'table'}
+} {fts_t1 fts_t1_content fts_t1_segments fts_t1_segdir}
+
+# See what happens when renaming the fts3 table fails.
+#
+do_test fts3ao-2.5 {
+  catchsql {
+    CREATE TABLE t1_segdir(a, b, c);
+    ALTER TABLE fts_t1 RENAME to t1;
+  }
+} {1 {SQL logic error}}
+do_test fts3ao-2.6 {
+  execsql { SELECT rowid, snippet(fts_t1) FROM fts_t1 WHERE a MATCH 'four'; }
+} {1 {one three <b>four</b>}}
+do_test fts3ao-2.7 {
+  execsql { SELECT tbl_name FROM sqlite_master WHERE type = 'table'}
+} {fts_t1 fts_t1_content fts_t1_segments fts_t1_segdir t1_segdir}
+
+# See what happens when renaming the fts3 table fails inside a transaction.
+#
+do_test fts3ao-2.8 {
+  execsql {
+    BEGIN;
+    INSERT INTO fts_t1(a, b, c) VALUES('one two three', 'one four', 'one two');
+  }
+} {}
+do_test fts3ao-2.9 {
+  catchsql {
+    ALTER TABLE fts_t1 RENAME to t1;
+  }
+} {1 {SQL logic error}}
+do_test fts3ao-2.10 {
+  execsql { SELECT rowid, snippet( fts_t1 ) FROM fts_t1 WHERE a MATCH 'four'; }
+} {1 {one three <b>four</b>}}
+do_test fts3ao-2.11 {
+  execsql { SELECT tbl_name FROM sqlite_master WHERE type = 'table'}
+} {fts_t1 fts_t1_content fts_t1_segments fts_t1_segdir t1_segdir}
+do_test fts3ao-2.12 {
+  execsql COMMIT
+  execsql {SELECT a FROM fts_t1}
+} {{one three four} {one two three}}
+do_test fts3ao-2.12 {
+  execsql { SELECT a, b, c FROM fts_t1 WHERE c MATCH 'four'; }
+} {{one three four} {one four} {one four two}}
+
+#-------------------------------------------------------------------
+# Close, delete and reopen the database. The following test should 
+# be run on an initially empty db.
+#
+db close
+forcedelete test.db test.db-journal
+sqlite3 db test.db
+
+do_test fts3ao-3.1 {
+  execsql {
+    CREATE VIRTUAL TABLE t1 USING fts3(a, b, c);
+    INSERT INTO t1(a, b, c) VALUES('one three four', 'one four', 'one two');
+    SELECT a, b, c FROM t1 WHERE c MATCH 'two';
+  }
+} {{one three four} {one four} {one two}}
+
+# This test was crashing at one point.
+#
+do_test fts3ao-3.2 {
+  execsql {
+    SELECT a, b, c FROM t1 WHERE c MATCH 'two';
+    CREATE TABLE t3(a, b, c);
+    SELECT a, b, c FROM t1 WHERE  c  MATCH 'two';
+  }
+} {{one three four} {one four} {one two} {one three four} {one four} {one two}}
+
+#---------------------------------------------------------------------
+# Test that it is possible to rename an fts3 table in an attached 
+# database.
+#
+forcedelete test2.db test2.db-journal
+
+do_test fts3ao-3.1 {
+  execsql {
+    ATTACH 'test2.db' AS aux;
+    CREATE VIRTUAL TABLE aux.t1 USING fts3(a, b, c);
+    INSERT INTO aux.t1(a, b, c) VALUES(
+      'neung song sahm', 'neung see', 'neung see song'
+    );
+  }
+} {}
+
+do_test fts3ao-3.2 {
+  execsql { SELECT a, b, c FROM aux.t1 WHERE a MATCH 'song'; }
+} {{neung song sahm} {neung see} {neung see song}}
+
+do_test fts3ao-3.3 {
+  execsql { SELECT a, b, c FROM t1 WHERE c MATCH 'two'; }
+} {{one three four} {one four} {one two}}
+
+do_test fts3ao-3.4 {
+  execsql { ALTER TABLE aux.t1 RENAME TO t2 }
+} {}
+
+do_test fts3ao-3.2 {
+  execsql { SELECT a, b, c FROM t2 WHERE a MATCH 'song'; }
+} {{neung song sahm} {neung see} {neung see song}}
+
+do_test fts3ao-3.3 {
+  execsql { SELECT a, b, c FROM t1 WHERE c MATCH 'two'; }
+} {{one three four} {one four} {one two}}
+
+#---------------------------------------------------------------------
+# Test that it is possible to rename an fts3 table within a 
+# transaction.
+#
+do_test fts3ao-4.1 {
+  execsql {
+    CREATE VIRTUAL TABLE t4 USING fts3;
+    INSERT INTO t4 VALUES('the quick brown fox');
+  }
+} {}
+do_test fts3ao-4.2 {
+  execsql {
+    BEGIN;
+      INSERT INTO t4 VALUES('jumped over the');
+  }
+} {}
+do_test fts3ao-4.3 { execsql { ALTER TABLE t4 RENAME TO t5; } } {}
+do_test fts3ao-4.4 { execsql { INSERT INTO t5 VALUES('lazy dog'); } } {}
+do_test fts3ao-4.5 { execsql COMMIT } {}
+do_test fts3ao-4.6 {
+  execsql { SELECT * FROM t5 }
+} {{the quick brown fox} {jumped over the} {lazy dog}}
+do_test fts3ao-4.7 {
+  execsql {
+    BEGIN;
+      INSERT INTO t5 VALUES('Down came a jumbuck to drink at that billabong');
+      ALTER TABLE t5 RENAME TO t6;
+      INSERT INTO t6 VALUES('Down came the troopers, one, two, three');
+    ROLLBACK;
+    SELECT * FROM t5;
+  }
+} {{the quick brown fox} {jumped over the} {lazy dog}}
+do_execsql_test fts3ao-4.8 {
+  SELECT snippet(t5, '[', ']') FROM t5 WHERE t5 MATCH 'the'
+} {{[the] quick brown fox} {jumped over [the]}}
+
+# Test that it is possible to rename an FTS4 table. Renaming an FTS4 table
+# involves renaming the extra %_docsize and %_stat tables.
+#
+do_execsql_test 5.1 {
+  CREATE VIRTUAL TABLE t7 USING FTS4;
+  INSERT INTO t7 VALUES('coined by a German clinician');
+  SELECT count(*) FROM sqlite_master WHERE name LIKE 't7%';
+  SELECT count(*) FROM sqlite_master WHERE name LIKE 't8%';
+} {6 0}
+do_execsql_test 5.2 {
+  ALTER TABLE t7 RENAME TO t8;
+  SELECT count(*) FROM sqlite_master WHERE name LIKE 't7%';
+  SELECT count(*) FROM sqlite_master WHERE name LIKE 't8%';
+} {0 6}
+
+# At one point this was causing a memory leak.
+#
+foreach {tn sql} {
+  1 {}
+  2 { INSERT INTO ft(ft) VALUES('merge=2,2'); }
+} {
+  reset_db
+  do_execsql_test 6.$tn.1 "
+    CREATE TABLE t1(x);
+    CREATE VIRTUAL TABLE ft USING fts3;
+    INSERT INTO ft VALUES('hello world');
+    $sql
+  "
+
+  db close
+  sqlite3 db test.db
+  do_execsql_test 6.$tn.2 { SELECT * FROM t1 } {}
+
+  do_test 6.$tn.3 {
+    sqlite3 db2 test.db
+    db2 eval { DROP TABLE t1 }
+    db2 close
+    set stmt [sqlite3_prepare db { SELECT * FROM ft } -1 dummy]
+    sqlite3_finalize $stmt
+  } {SQLITE_OK}
+  db close
+}
+
+finish_test
diff --git a/test/fts3atoken.test b/test/fts3atoken.test
new file mode 100644
index 0000000000000000000000000000000000000000..4981480b5e82cb33355dd02f82f6f18c668315ca
--- /dev/null
+++ b/test/fts3atoken.test
@@ -0,0 +1,287 @@
+# 2007 June 21
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library. The focus 
+# of this script is testing the pluggable tokeniser feature of the 
+# FTS3 module.
+#
+# $Id: fts3atoken.test,v 1.1 2007/08/20 17:38:42 shess Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+set ::testprefix fts3atoken
+
+proc escape_string {str} {
+  set out ""
+  foreach char [split $str ""] {
+    scan $char %c i
+    if {$i<=127} {
+      append out $char
+    } else {
+      append out [format {\x%.4x} $i]
+    }
+  }
+  set out
+}
+
+#--------------------------------------------------------------------------
+# Test cases fts3atoken-1.* are the warm-body test for the SQL scalar
+# function fts3_tokenizer(). The procedure is as follows:
+#
+#   1: Verify that there is no such fts3 tokenizer as 'blah'.
+#
+#   2: Query for the built-in tokenizer 'simple'. Insert a copy of the
+#      retrieved value as tokenizer 'blah'.
+#
+#   3: Test that the value returned for tokenizer 'blah' is now the
+#      same as that retrieved for 'simple'.
+#
+#   4: Test that it is now possible to create an fts3 table using 
+#      tokenizer 'blah' (it was not possible in step 1).
+#
+#   5: Test that the table created to use tokenizer 'blah' is usable.
+#
+sqlite3_db_config db SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER 1
+do_test fts3atoken-1.1 {
+  catchsql {
+    CREATE VIRTUAL TABLE t1 USING fts3(content, tokenize blah);
+  }
+} {1 {unknown tokenizer: blah}}
+do_test fts3atoken-1.2 {
+  execsql {
+    SELECT fts3_tokenizer('blah', fts3_tokenizer('simple')) IS NULL;
+  }
+} {0}
+do_test fts3atoken-1.3 {
+  execsql {
+    SELECT fts3_tokenizer('blah') == fts3_tokenizer('simple');
+  }
+} {1}
+do_test fts3atoken-1.4 {
+  catchsql {
+    CREATE VIRTUAL TABLE t1 USING fts3(content, tokenize blah);
+  }
+} {0 {}}
+do_test fts3atoken-1.5 {
+  execsql {
+    INSERT INTO t1(content) VALUES('There was movement at the station');
+    INSERT INTO t1(content) VALUES('For the word has passed around');
+    INSERT INTO t1(content) VALUES('That the colt from ol regret had got');
+    SELECT content FROM t1 WHERE content MATCH 'movement'
+  }
+} {{There was movement at the station}}
+
+unset -nocomplain simple blah2name simplename
+set simplename "simple"
+set blah2name "blah2"
+set simple [db one {SELECT fts3_tokenizer('simple')}]
+sqlite3_db_config db SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER 0
+do_catchsql_test 1.6 {
+  SELECT fts3_tokenizer('blah', fts3_tokenizer('simple')) IS NULL;
+} {1 {fts3tokenize disabled}}
+do_test fts3atoken-1.7 {
+  execsql {
+    SELECT fts3_tokenizer('blah2', $simple) IS NULL;
+  }
+} {1}
+
+# With ENABLE_FTS3_TOKENIZER off, the fts3_tokenzer(1) function
+# returns NULL unless the first parameter is a bound parameter.
+# If the first parameter is a bound parameter, then fts3_tokenizer(1)
+# returns the actual pointer value as a BLOB.
+#
+do_test fts3atoken-1.8 {
+  execsql {
+    SELECT fts3_tokenizer($blah2name) == fts3_tokenizer($simplename),
+           typeof(fts3_tokenizer($blah2name)),
+           typeof(fts3_tokenizer('blah2')),
+           typeof(fts3_tokenizer($simplename)),
+           typeof(fts3_tokenizer('simple'));
+  }
+} {1 blob null blob null}
+
+# With ENABLE_FTS3_TOKENIZER on, fts3_tokenizer() always returns
+# the BLOB pointer, regardless the parameter
+#
+sqlite3_db_config db SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER 1
+do_test fts3atoken-1.9 {
+  execsql {
+    SELECT fts3_tokenizer('blah2') == fts3_tokenizer('simple'),
+           typeof(fts3_tokenizer($blah2name)),
+           typeof(fts3_tokenizer('blah2')),
+           typeof(fts3_tokenizer($simplename)),
+           typeof(fts3_tokenizer('simple'));
+  }
+} {1 blob blob blob blob}
+
+# 2019-12-31:  The fts3_tokenizer() function can never be invoked from
+# within a trigger or view.
+#
+do_catchsql_test fts3atoken-1.10 {
+  CREATE VIEW v110(x) AS
+      SELECT fts3_tokenizer('tok110', fts3_tokenizer('simple')) IS NULL;
+} {0 {}}
+do_catchsql_test fts3atoken-1.11 {
+  SELECT * FROM v110;
+} {1 {unsafe use of fts3_tokenizer()}}
+do_catchsql_test fts3atoken-1.12 {
+  CREATE TABLE t110(a,b);
+  CREATE TRIGGER r110 AFTER INSERT ON t110 BEGIN
+      SELECT fts3_tokenizer('tok110', fts3_tokenizer('simple')) IS NULL;
+  END;
+} {0 {}}
+do_catchsql_test fts3atoken-1.13 {
+  INSERT INTO t110(a,b) VALUES(1,2);
+} {1 {unsafe use of fts3_tokenizer()}}
+do_catchsql_test fts3atoken-1.14 {
+  SELECT * FROM t110;
+} {0 {}}
+
+#--------------------------------------------------------------------------
+# Test cases fts3atoken-2.* test error cases in the scalar function based
+# API for getting and setting tokenizers.
+#
+do_test fts3atoken-2.1 {
+  catchsql {
+    SELECT fts3_tokenizer('nosuchtokenizer');
+  }
+} {1 {unknown tokenizer: nosuchtokenizer}}
+
+#--------------------------------------------------------------------------
+# Test cases fts3atoken-3.* test the three built-in tokenizers with a
+# simple input string via the built-in test function. This is as much
+# to test the test function as the tokenizer implementations.
+#
+sqlite3_db_config db SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER 1
+do_test fts3atoken-3.1 {
+  execsql {
+    SELECT fts3_tokenizer_test('simple', 'I don''t see how');
+  }
+} {{0 i I 1 don don 2 t t 3 see see 4 how how}}
+do_test fts3atoken-3.2 {
+  execsql {
+    SELECT fts3_tokenizer_test('porter', 'I don''t see how');
+  }
+} {{0 i I 1 don don 2 t t 3 see see 4 how how}}
+ifcapable icu {
+  do_test fts3atoken-3.3 {
+    execsql {
+      SELECT fts3_tokenizer_test('icu', 'I don''t see how');
+    }
+  } {{0 i I 1 don't don't 2 see see 3 how how}}
+}
+
+#--------------------------------------------------------------------------
+# Test cases fts3atoken-4.* test the ICU tokenizer. In practice, this
+# tokenizer only has two modes - "thai" and "everybody else". Some other
+# Asian languages (Lao, Khmer etc.) require the same special treatment as 
+# Thai, but ICU doesn't support them yet.
+#
+ifcapable icu {
+
+  proc do_icu_test {name locale input output} {
+    set ::out [db eval { SELECT fts3_tokenizer_test('icu', $locale, $input) }]
+    do_test $name {
+      lindex $::out 0
+    } $output
+  }
+  
+  do_icu_test fts3atoken-4.1 en_US  {}   {}
+  do_icu_test fts3atoken-4.2 en_US {Test cases fts3} [list \
+    0 test Test 1 cases cases 2 fts3 fts3
+  ]
+
+  # The following test shows that ICU is smart enough to recognise
+  # Thai chararacters, even when the locale is set to English/United 
+  # States.
+  #
+  set input "\u0e2d\u0e30\u0e44\u0e23\u0e19\u0e30\u0e04\u0e23\u0e31\u0e1a"
+  set output    "0 \u0e2d\u0e30\u0e44\u0e23 \u0e2d\u0e30\u0e44\u0e23 "
+  append output "1 \u0e19\u0e30 \u0e19\u0e30 "
+  append output "2 \u0e04\u0e23\u0e31\u0e1a \u0e04\u0e23\u0e31\u0e1a"
+
+  do_icu_test fts3atoken-4.3 th_TH  $input $output
+  do_icu_test fts3atoken-4.4 en_US  $input $output
+
+  # ICU handles an unknown locale by falling back to the default.
+  # So this is not an error.
+  do_icu_test fts3atoken-4.5 MiddleOfTheOcean  $input $output
+
+  set    longtoken "AReallyReallyLongTokenOneThatWillSurelyRequire"
+  append longtoken "AReallocInTheIcuTokenizerCode"
+
+  set    input "short tokens then "
+  append input $longtoken
+  set    output "0 short short "
+  append output "1 tokens tokens "
+  append output "2 then then "
+  append output "3 [string tolower $longtoken] $longtoken"
+
+  do_icu_test fts3atoken-4.6 MiddleOfTheOcean  $input $output
+  do_icu_test fts3atoken-4.7 th_TH  $input $output
+  do_icu_test fts3atoken-4.8 en_US  $input $output
+
+  do_execsql_test 5.1 {
+    CREATE VIRTUAL TABLE x1 USING fts3(name,TOKENIZE icu en_US);
+    insert into x1 (name) values (NULL);
+    insert into x1 (name) values (NULL);
+    delete from x1;
+  }
+
+  proc cp_to_str {codepoint_list} {
+    set fmt [string repeat %c [llength $codepoint_list]]
+    eval [list format $fmt] $codepoint_list
+  }
+
+  do_test 5.2 {
+    set str [cp_to_str {19968 26085 32822 32645 27874 23433 20986}]
+    execsql { INSERT INTO x1 VALUES($str) }
+  } {}
+}
+
+do_test fts3atoken-internal {
+  execsql { SELECT fts3_tokenizer_internal_test() }
+} {ok}
+
+#-------------------------------------------------------------------------
+# Test empty tokenizer names.
+#
+do_catchsql_test 6.1.1 {
+  CREATE VIRTUAL TABLE t3 USING fts4(tokenize="");
+} {1 {unknown tokenizer: }}
+do_catchsql_test 6.1.2 {
+  CREATE VIRTUAL TABLE t3 USING fts4(tokenize=);
+} {1 {unknown tokenizer: }}
+do_catchsql_test 6.1.3 {
+  CREATE VIRTUAL TABLE t3 USING fts4(tokenize="   ");
+} {1 {unknown tokenizer:    }}
+
+do_catchsql_test 6.2.1 {
+  SELECT fts3_tokenizer(NULL);
+} {1 {unknown tokenizer: }}
+
+sqlite3_db_config db SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER 1
+do_catchsql_test 6.2.2 {
+  SELECT fts3_tokenizer(NULL, X'1234567812345678');
+} {1 {argument type mismatch}}
+do_catchsql_test 6.2.3 {
+  SELECT fts3_tokenizer(NULL, X'12345678');
+} {1 {argument type mismatch}}
+
+
+finish_test
diff --git a/test/fts3auto.test b/test/fts3auto.test
new file mode 100644
index 0000000000000000000000000000000000000000..19193973d9eca4637a9aee168b55089e8afe87ac
--- /dev/null
+++ b/test/fts3auto.test
@@ -0,0 +1,717 @@
+# 2011 June 10
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If this build does not include FTS3, skip the tests in this file.
+#
+ifcapable !fts3 { finish_test ; return }
+source $testdir/fts3_common.tcl
+source $testdir/malloc_common.tcl
+
+set testprefix fts3auto
+set sfep $sqlite_fts3_enable_parentheses
+set sqlite_fts3_enable_parentheses 1
+
+#--------------------------------------------------------------------------
+# Start of Tcl infrastructure used by tests. The entry points are:
+#
+#   do_fts3query_test
+#   fts3_make_deferrable
+#   fts3_zero_long_segments 
+#
+
+#
+#    do_fts3query_test TESTNAME ?OPTIONS? TABLE MATCHEXPR
+#
+# This proc runs several test cases on FTS3/4 table $TABLE using match
+# expression $MATCHEXPR. All documents in $TABLE must be formatted so that
+# they can be "tokenized" using the Tcl list commands (llength, lindex etc.).
+# The name and column names used by $TABLE must not require any quoting or
+# escaping when used in SQL statements.
+#
+# $MATCHINFO may be any expression accepted by the FTS4 MATCH operator, 
+# except that the "<column-name>:token" syntax is not supported. Tcl list
+# commands are used to tokenize the expression. Any parenthesis must appear
+# either as separate list elements, or as the first (for opening) or last
+# (for closing) character of a list element. i.e. the expression "(a OR b)c"
+# will not be parsed correctly, but "( a OR b) c" will.
+#
+# Available OPTIONS are:
+#
+#     -deferred TOKENLIST
+#
+# If the "deferred" option is supplied, it is passed a list of tokens that
+# are deferred by FTS and result in the relevant matchinfo() stats being an
+# approximation. 
+#
+set sqlite_fts3_enable_parentheses 1
+proc do_fts3query_test {tn args} {
+
+  set nArg [llength $args]
+  if {$nArg < 2 || ($nArg % 2)} {
+    set cmd do_fts3query_test
+    error "wrong # args: should be \"$cmd ?-deferred LIST? TABLE MATCHEXPR\""
+  }
+  set tbl   [lindex $args [expr $nArg-2]]
+  set match [lindex $args [expr $nArg-1]]
+  set deferred [list]
+
+  foreach {k v} [lrange $args 0 [expr $nArg-3]] {
+    switch -- $k {
+      -deferred {
+        ifcapable fts4_deferred { set deferred $v }
+      }
+      default {
+        error "bad option \"$k\": must be -deferred"
+      }
+    }
+  }
+
+  get_near_results $tbl $match $deferred aHit
+  get_near_results $tbl [string map {AND OR} $match] $deferred aMatchinfo
+
+  set matchinfo_asc [list]
+  foreach docid [lsort -integer -incr [array names aHit]] {
+    lappend matchinfo_asc $docid $aMatchinfo($docid)
+  }
+  set matchinfo_desc [list]
+  foreach docid [lsort -integer -decr [array names aHit]] {
+    lappend matchinfo_desc $docid $aMatchinfo($docid)
+  }
+
+  set title "(\"$match\" -> [llength [array names aHit]] rows)"
+
+  do_execsql_test $tn$title.1 "
+    SELECT docid FROM $tbl WHERE $tbl MATCH '$match' ORDER BY docid ASC
+  " [lsort -integer -incr [array names aHit]] 
+
+  do_execsql_test $tn$title.2 "
+    SELECT docid FROM $tbl WHERE $tbl MATCH '$match' ORDER BY docid DESC
+  " [lsort -integer -decr [array names aHit]] 
+
+  do_execsql_test $tn$title.3 "
+    SELECT docid, mit(matchinfo($tbl, 'x')) FROM $tbl 
+    WHERE $tbl MATCH '$match' ORDER BY docid DESC
+  " $matchinfo_desc
+
+  do_execsql_test $tn$title.4 "
+    SELECT docid, mit(matchinfo($tbl, 'x')) FROM $tbl 
+    WHERE $tbl MATCH '$match' ORDER BY docid ASC
+  " $matchinfo_asc
+}
+
+#    fts3_make_deferrable TABLE TOKEN ?NROW?
+#
+proc fts3_make_deferrable {tbl token {nRow 0}} {
+
+  set stmt [sqlite3_prepare db "SELECT * FROM $tbl" -1 dummy]
+  set name [sqlite3_column_name $stmt 0]
+  sqlite3_finalize $stmt
+
+  if {$nRow==0} {
+    set nRow [db one "SELECT count(*) FROM $tbl"]
+  }
+  set pgsz [db one "PRAGMA page_size"]
+  execsql BEGIN
+  for {set i 0} {$i < ($nRow * $pgsz * 1.2)/100} {incr i} {
+    set doc [string repeat "$token " 100]
+    execsql "INSERT INTO $tbl ($name) VALUES(\$doc)"
+  }
+  execsql "INSERT INTO $tbl ($name) VALUES('aaaaaaa ${token}aaaaa')"
+  execsql COMMIT
+
+  return [expr $nRow*$pgsz]
+}
+
+#    fts3_zero_long_segments TABLE ?LIMIT?
+#
+proc fts3_zero_long_segments {tbl limit} {
+  sqlite3_db_config db DEFENSIVE 0
+  execsql " 
+    UPDATE ${tbl}_segments 
+    SET block = zeroblob(length(block)) 
+    WHERE length(block)>$limit
+  "
+  return [db changes]
+}
+
+
+proc mit {blob} {
+  set scan(littleEndian) i*
+  set scan(bigEndian) I*
+  binary scan $blob $scan($::tcl_platform(byteOrder)) r
+  return $r
+}
+db func mit mit
+
+proc fix_phrase_expr {cols expr colfiltervar} {
+  upvar $colfiltervar iColFilter
+
+  set out [list]
+  foreach t $expr {
+    if {[string match *:* $t]} {
+      set col [lindex [split $t :] 0]
+      set t   [lindex [split $t :] 1]
+      set iCol [lsearch $cols $col]
+      if {$iCol<0} { error "unknown column: $col" }
+      if {$iColFilter < 0} {
+        set iColFilter $iCol
+      } elseif {$iColFilter != $iCol} {
+        set iColFilter [llength $cols]
+      }
+    }
+    lappend out $t
+  }
+
+  return $out
+}
+
+proc fix_near_expr {cols expr colfiltervar} { 
+  upvar $colfiltervar iColFilter
+ 
+  set iColFilter -1
+
+  set out [list]
+  lappend out [fix_phrase_expr $cols [lindex $expr 0] iColFilter]
+  foreach {a b} [lrange $expr 1 end] {
+    if {[string match -nocase near $a]}   { set a 10 }
+    if {[string match -nocase near/* $a]} { set a [string range $a 5 end] }
+    lappend out $a
+    lappend out [fix_phrase_expr $cols $b iColFilter]
+  }
+  return $out
+}
+
+proc get_single_near_results {tbl expr deferred arrayvar nullvar} {
+  upvar $arrayvar aMatchinfo
+  upvar $nullvar nullentry
+  catch {array unset aMatchinfo}
+
+  set cols [list]
+  set miss [list]
+  db eval "PRAGMA table_info($tbl)" A { lappend cols $A(name) ; lappend miss 0 }
+  set expr [fix_near_expr $cols $expr iColFilter]
+
+  # Calculate the expected results using [fts3_near_match]. The following
+  # loop populates the "hits" and "counts" arrays as follows:
+  # 
+  #   1. For each document in the table that matches the NEAR expression,
+  #      hits($docid) is set to 1. The set of docids that match the expression
+  #      can therefore be found using [array names hits].
+  #
+  #   2. For each column of each document in the table, counts($docid,$iCol)
+  #      is set to the -phrasecountvar output.
+  #
+  set res [list]
+  catch { array unset hits }
+  db eval "SELECT docid, * FROM $tbl" d {
+    set iCol 0
+    foreach col [lrange $d(*) 1 end] {
+      set docid $d(docid)
+      if {$iColFilter<0 || $iCol==$iColFilter} {
+        set hit [fts3_near_match $d($col) $expr -p counts($docid,$iCol)]
+        if {$hit} { set hits($docid) 1 }
+      } else {
+        set counts($docid,$iCol) $miss
+      }
+      incr iCol
+    }
+  }
+  set nPhrase [expr ([llength $expr]+1)/2]
+  set nCol $iCol
+
+  # This block populates the nHit and nDoc arrays. For each phrase/column
+  # in the query/table, array elements are set as follows:
+  #
+  #   nHit($iPhrase,$iCol) - Total number of hits for phrase $iPhrase in 
+  #                          column $iCol.
+  #
+  #   nDoc($iPhrase,$iCol) - Number of documents with at least one hit for
+  #                          phrase $iPhrase in column $iCol.
+  #
+  for {set iPhrase 0} {$iPhrase < $nPhrase} {incr iPhrase} {
+    for {set iCol 0} {$iCol < $nCol} {incr iCol} {
+      set nHit($iPhrase,$iCol) 0
+      set nDoc($iPhrase,$iCol) 0
+    }
+  }
+  foreach key [array names counts] {
+    set iCol [lindex [split $key ,] 1]
+    set iPhrase 0
+    foreach c $counts($key) {
+      if {$c>0} { incr nDoc($iPhrase,$iCol) 1 }
+      incr nHit($iPhrase,$iCol) $c
+      incr iPhrase
+    }
+  }
+
+  if {[llength $deferred] && [llength $expr]==1} {
+    set phrase [lindex $expr 0]
+    set rewritten [list]
+    set partial 0
+    foreach tok $phrase {
+      if {[lsearch $deferred $tok]>=0} {
+        lappend rewritten *
+      } else {
+        lappend rewritten $tok
+        set partial 1
+      }
+    }
+    if {$partial==0} {
+      set tblsize [db one "SELECT count(*) FROM $tbl"]
+      for {set iCol 0} {$iCol < $nCol} {incr iCol} {
+        set nHit(0,$iCol) $tblsize
+        set nDoc(0,$iCol) $tblsize
+      }
+    } elseif {$rewritten != $phrase} {
+      while {[lindex $rewritten end] == "*"} {
+        set rewritten [lrange $rewritten 0 end-1]
+      }
+      while {[lindex $rewritten 0] == "*"} {
+        set rewritten [lrange $rewritten 1 end]
+      }
+      get_single_near_results $tbl [list $rewritten] {} aRewrite nullentry
+      foreach docid [array names hits] {
+        set aMatchinfo($docid) $aRewrite($docid)
+      }
+      return
+    }
+  }
+
+  # Set up the aMatchinfo array. For each document, set aMatchinfo($docid) to
+  # contain the output of matchinfo('x') for the document.
+  #
+  foreach docid [array names hits] {
+    set mi [list]
+    for {set iPhrase 0} {$iPhrase<$nPhrase} {incr iPhrase} {
+      for {set iCol 0} {$iCol<$nCol} {incr iCol} {
+        lappend mi [lindex $counts($docid,$iCol) $iPhrase]
+        lappend mi $nHit($iPhrase,$iCol)
+        lappend mi $nDoc($iPhrase,$iCol)
+      }
+    }
+    set aMatchinfo($docid) $mi
+  }
+
+  # Set up the nullentry output.
+  #
+  set nullentry [list]
+  for {set iPhrase 0} {$iPhrase<$nPhrase} {incr iPhrase} {
+    for {set iCol 0} {$iCol<$nCol} {incr iCol} {
+      lappend nullentry 0 $nHit($iPhrase,$iCol) $nDoc($iPhrase,$iCol)
+    }
+  }
+}
+
+
+proc matching_brackets {expr} {
+  if {[string range $expr 0 0]!="(" || [string range $expr end end] !=")"} { 
+    return 0 
+  }
+
+  set iBracket 1
+  set nExpr [string length $expr]
+  for {set i 1} {$iBracket && $i < $nExpr} {incr i} {
+    set c [string range $expr $i $i]
+    if {$c == "("} {incr iBracket}
+    if {$c == ")"} {incr iBracket -1}
+  }
+
+  return [expr ($iBracket==0 && $i==$nExpr)]
+}
+
+proc get_near_results {tbl expr deferred arrayvar {nullvar ""}} {
+  upvar $arrayvar aMatchinfo
+  if {$nullvar != ""} { upvar $nullvar nullentry }
+
+  set expr [string trim $expr]
+  while { [matching_brackets $expr] } {
+    set expr [string trim [string range $expr 1 end-1]]
+  }
+
+  set prec(NOT) 1
+  set prec(AND) 2
+  set prec(OR)  3
+
+  set currentprec 0
+  set iBracket 0
+  set expr_length [llength $expr]
+  for {set i 0} {$i < $expr_length} {incr i} {
+    set op [lindex $expr $i]
+    if {$iBracket==0 && [info exists prec($op)] && $prec($op)>=$currentprec } {
+      set opidx $i
+      set currentprec $prec($op)
+    } else {
+      for {set j 0} {$j < [string length $op]} {incr j} {
+        set c [string range $op $j $j]
+        if {$c == "("} { incr iBracket +1 }
+        if {$c == ")"} { incr iBracket -1 }
+      }
+    }
+  }
+  if {$iBracket!=0} { error "mismatched brackets in: $expr" }
+
+  if {[info exists opidx]==0} {
+    get_single_near_results $tbl $expr $deferred aMatchinfo nullentry
+  } else {
+    set eLeft  [lrange $expr 0 [expr $opidx-1]]
+    set eRight [lrange $expr [expr $opidx+1] end]
+
+    get_near_results $tbl $eLeft  $deferred aLeft  nullleft
+    get_near_results $tbl $eRight $deferred aRight nullright
+
+    switch -- [lindex $expr $opidx] {
+      "NOT" {
+        foreach hit [array names aLeft] {
+          if {0==[info exists aRight($hit)]} {
+            set aMatchinfo($hit) $aLeft($hit)
+          }
+        }
+        set nullentry $nullleft
+      }
+
+      "AND" {
+        foreach hit [array names aLeft] {
+          if {[info exists aRight($hit)]} {
+            set aMatchinfo($hit) [concat $aLeft($hit) $aRight($hit)]
+          }
+        }
+        set nullentry [concat $nullleft $nullright]
+      }
+
+      "OR" {
+        foreach hit [array names aLeft] {
+          if {[info exists aRight($hit)]} {
+            set aMatchinfo($hit) [concat $aLeft($hit) $aRight($hit)]
+            unset aRight($hit)
+          } else {
+            set aMatchinfo($hit) [concat $aLeft($hit) $nullright]
+          }
+        }
+        foreach hit [array names aRight] {
+          set aMatchinfo($hit) [concat $nullleft $aRight($hit)]
+        }
+
+        set nullentry [concat $nullleft $nullright]
+      }
+    }
+  }
+}
+
+
+# End of test procs. Actual tests are below this line.
+#--------------------------------------------------------------------------
+
+#--------------------------------------------------------------------------
+# The following test cases - fts3auto-1.* - focus on testing the Tcl 
+# command [fts3_near_match], which is used by other tests in this file.
+#
+proc test_fts3_near_match {tn doc expr res} {
+  fts3_near_match $doc $expr -phrasecountvar p
+  uplevel do_test [list $tn] [list [list set {} $p]] [list $res]
+}
+
+test_fts3_near_match 1.1.1 {a b c a b} a                   {2}
+test_fts3_near_match 1.1.2 {a b c a b} {a 5 b 6 c}         {2 2 1}
+test_fts3_near_match 1.1.3 {a b c a b} {"a b"}             {2}
+test_fts3_near_match 1.1.4 {a b c a b} {"b c"}             {1}
+test_fts3_near_match 1.1.5 {a b c a b} {"c c"}             {0}
+
+test_fts3_near_match 1.2.1 "a b c d e f g" {b 2 f}         {0 0}
+test_fts3_near_match 1.2.2 "a b c d e f g" {b 3 f}         {1 1}
+test_fts3_near_match 1.2.3 "a b c d e f g" {f 2 b}         {0 0}
+test_fts3_near_match 1.2.4 "a b c d e f g" {f 3 b}         {1 1}
+test_fts3_near_match 1.2.5 "a b c d e f g" {"a b" 2 "f g"} {0 0}
+test_fts3_near_match 1.2.6 "a b c d e f g" {"a b" 3 "f g"} {1 1}
+
+set A "a b c d e f g h i j k l m n o p q r s t u v w x y z"
+test_fts3_near_match 1.3.1 $A {"c d" 5 "i j" 1 "e f"}      {0 0 0}
+test_fts3_near_match 1.3.2 $A {"c d" 5 "i j" 2 "e f"}      {1 1 1}
+
+#--------------------------------------------------------------------------
+# Test cases fts3auto-2.* run some simple tests using the 
+# [do_fts3query_test] proc.
+#
+foreach {tn create} {
+  1    "fts4(a, b)"
+  2    "fts4(a, b, order=DESC)"
+  3    "fts4(a, b, order=ASC)"
+  4    "fts4(a, b, prefix=1)"
+  5    "fts4(a, b, order=DESC, prefix=1)"
+  6    "fts4(a, b, order=ASC, prefix=1)"
+} {
+  do_test 2.$tn.1 {
+    catchsql { DROP TABLE t1 }
+    execsql  "CREATE VIRTUAL TABLE t1 USING $create"
+    for {set i 0} {$i<32} {incr i} {
+      set doc [list]
+      if {$i&0x01} {lappend doc one}
+      if {$i&0x02} {lappend doc two}
+      if {$i&0x04} {lappend doc three}
+      if {$i&0x08} {lappend doc four}
+      if {$i&0x10} {lappend doc five}
+      execsql { INSERT INTO t1 VALUES($doc, null) }
+    }
+  } {}
+
+  foreach {tn2 expr} {
+    1     {one}
+    2     {one NEAR/1 five}
+    3     {t*}
+    4     {t* NEAR/0 five}
+    5     {o* NEAR/1 f*}
+    6     {one NEAR five NEAR two NEAR four NEAR three}
+    7     {one NEAR xyz}
+    8     {one OR two}
+    9     {one AND two}
+    10    {one NOT two}
+    11    {one AND two OR three}
+    12    {three OR one AND two}
+    13    {(three OR one) AND two}
+    14    {(three OR one) AND two NOT (five NOT four)}
+    15    {"one two"}
+    16    {"one two" NOT "three four"}
+  } {
+    do_fts3query_test 2.$tn.2.$tn2 t1 $expr
+  }
+}
+
+#--------------------------------------------------------------------------
+# Some test cases involving deferred tokens.
+#
+
+foreach {tn create} {
+  1    "fts4(x)"
+  2    "fts4(x, order=DESC)"
+} {
+  catchsql { DROP TABLE t1 }
+  execsql  "CREATE VIRTUAL TABLE t1 USING $create"
+  do_execsql_test 3.$tn.1 {
+    INSERT INTO t1(docid, x) VALUES(-2, 'a b c d e f g h i j k');
+    INSERT INTO t1(docid, x) VALUES(-1, 'b c d e f g h i j k a');
+    INSERT INTO t1(docid, x) VALUES(0, 'c d e f g h i j k a b');
+    INSERT INTO t1(docid, x) VALUES(1, 'd e f g h i j k a b c');
+    INSERT INTO t1(docid, x) VALUES(2, 'e f g h i j k a b c d');
+    INSERT INTO t1(docid, x) VALUES(3, 'f g h i j k a b c d e');
+    INSERT INTO t1(docid, x) VALUES(4, 'a c e g i k');
+    INSERT INTO t1(docid, x) VALUES(5, 'a d g j');
+    INSERT INTO t1(docid, x) VALUES(6, 'c a b');
+  }
+
+  set limit [fts3_make_deferrable t1 c]
+
+  do_fts3query_test 3.$tn.2.1 t1 {a OR c}
+
+  ifcapable fts4_deferred {
+    do_test 3.$tn.3 { fts3_zero_long_segments t1 $limit } {1}
+  }
+
+  foreach {tn2 expr def} {
+    1     {a NEAR c}            {}
+    2     {a AND c}             c
+    3     {"a c"}               c
+    4     {"c a"}               c
+    5     {"a c" NEAR/1 g}      {}
+    6     {"a c" NEAR/0 g}      {}
+  } {
+    do_fts3query_test 3.$tn.4.$tn2 -deferred $def t1 $expr
+  }
+}
+
+#--------------------------------------------------------------------------
+# 
+foreach {tn create} {
+  1    "fts4(x, y)"
+  2    "fts4(x, y, order=DESC)"
+  3    "fts4(x, y, order=DESC, prefix=2)"
+} {
+
+  execsql [subst {
+    DROP TABLE t1;
+    CREATE VIRTUAL TABLE t1 USING $create;
+    INSERT INTO t1 VALUES('one two five four five', '');
+    INSERT INTO t1 VALUES('', 'one two five four five');
+    INSERT INTO t1 VALUES('one two', 'five four five');
+  }]
+
+  do_fts3query_test 4.$tn.1.1 t1 {one AND five}
+  do_fts3query_test 4.$tn.1.2 t1 {one NEAR five}
+  do_fts3query_test 4.$tn.1.3 t1 {one NEAR/1 five}
+  do_fts3query_test 4.$tn.1.4 t1 {one NEAR/2 five}
+  do_fts3query_test 4.$tn.1.5 t1 {one NEAR/3 five}
+
+  do_test 4.$tn.2 { 
+    set limit [fts3_make_deferrable t1 five]
+    execsql { INSERT INTO t1(t1) VALUES('optimize') }
+    ifcapable fts4_deferred {
+      expr {[fts3_zero_long_segments t1 $limit]>0}
+    } else {
+      expr 1
+    }
+  } {1}
+
+  do_fts3query_test 4.$tn.3.1 -deferred five t1 {one AND five}
+  do_fts3query_test 4.$tn.3.2 -deferred five t1 {one NEAR five}
+  do_fts3query_test 4.$tn.3.3 -deferred five t1 {one NEAR/1 five}
+  do_fts3query_test 4.$tn.3.4 -deferred five t1 {one NEAR/2 five}
+
+  do_fts3query_test 4.$tn.3.5 -deferred five t1 {one NEAR/3 five}
+
+  do_fts3query_test 4.$tn.4.1 -deferred fi* t1 {on* AND fi*}
+  do_fts3query_test 4.$tn.4.2 -deferred fi* t1 {on* NEAR fi*}
+  do_fts3query_test 4.$tn.4.3 -deferred fi* t1 {on* NEAR/1 fi*}
+  do_fts3query_test 4.$tn.4.4 -deferred fi* t1 {on* NEAR/2 fi*}
+  do_fts3query_test 4.$tn.4.5 -deferred fi* t1 {on* NEAR/3 fi*}
+
+  ifcapable fts4_deferred {
+    db eval {UPDATE t1_stat SET value=x'' WHERE id=0}
+    do_catchsql_test 4.$tn.4.6 {
+      SELECT docid FROM t1 WHERE t1 MATCH 'on* NEAR/3 fi*'
+    } {1 {database disk image is malformed}}
+  }
+}
+
+#--------------------------------------------------------------------------
+# The following test cases - fts3auto-5.* - focus on using prefix indexes.
+#
+set chunkconfig [fts3_configure_incr_load 1 1]
+foreach {tn create pending} {
+  1    "fts4(a, b)"                                  1
+  2    "fts4(a, b, order=ASC, prefix=1)"             1
+  3    "fts4(a, b, order=ASC,  prefix=\"1,3\")"      0
+  4    "fts4(a, b, order=DESC, prefix=\"2,4\")"      0
+  5    "fts4(a, b, order=DESC, prefix=\"1\")"        0
+  6    "fts4(a, b, order=ASC,  prefix=\"1,3\")"      0
+} {
+
+  execsql [subst {
+    DROP TABLE IF EXISTS t1;
+    CREATE VIRTUAL TABLE t1 USING $create;
+  }]
+
+  if {$pending} {execsql BEGIN}
+
+  foreach {a b} {
+    "the song of songs which is solomons"
+    "let him kiss me with the kisses of his mouth for thy love is better than wine"
+    "because of the savour of thy good ointments thy name is as ointment poured forth therefore do the virgins love thee"
+    "draw me we will run after thee the king hath brought me into his chambers we will be glad and rejoice in thee we will remember thy love more than wine the upright love thee"
+    "i am black but comely o ye daughters of jerusalem as the tents of kedar as the curtains of solomon"
+    "look not upon me because i am black because the sun hath looked upon me my mothers children were angry with me they made me the keeper of the vineyards but mine own vineyard have i not kept"
+    "tell me o thou whom my soul loveth where thou feedest where thou makest thy flock to rest at noon for why should i be as one that turneth aside by the flocks of thy companions?"
+    "if thou know not o thou fairest among women go thy way forth by the footsteps of the flock and feed thy kids beside the shepherds tents"
+    "i have compared thee o my love to a company of horses in pharaohs chariots"
+    "thy cheeks are comely with rows of jewels thy neck with chains of gold"
+    "we will make thee borders of gold with studs of silver"
+    "while the king sitteth at his table my spikenard sendeth forth the smell thereof"
+    "a bundle of myrrh is my wellbeloved unto me he shall lie all night betwixt my breasts"
+    "my beloved is unto me as a cluster of camphire in the vineyards of en gedi"
+    "behold thou art fair my love behold thou art fair thou hast doves eyes"
+    "behold thou art fair my beloved yea pleasant also our bed is green"
+    "the beams of our house are cedar and our rafters of fir"
+  } {
+    execsql {INSERT INTO t1(a, b) VALUES($a, $b)}
+  }
+
+
+  do_fts3query_test 5.$tn.1.1 t1 {s*}
+  do_fts3query_test 5.$tn.1.2 t1 {so*}
+  do_fts3query_test 5.$tn.1.3 t1 {"s* o*"}
+  do_fts3query_test 5.$tn.1.4 t1 {b* NEAR/3 a*}
+  do_fts3query_test 5.$tn.1.5 t1 {a*}
+  do_fts3query_test 5.$tn.1.6 t1 {th* NEAR/5 a* NEAR/5 w*}
+  do_fts3query_test 5.$tn.1.7 t1 {"b* th* art* fair*"}
+
+  if {$pending} {execsql COMMIT}
+}
+eval fts3_configure_incr_load $chunkconfig
+
+foreach {tn pending create} {
+  1    0 "fts4(a, b, c, d)"
+  2    1 "fts4(a, b, c, d)"
+  3    0 "fts4(a, b, c, d, order=DESC)"
+  4    1 "fts4(a, b, c, d, order=DESC)"
+} {
+  execsql [subst {
+    DROP TABLE IF EXISTS t1;
+    CREATE VIRTUAL TABLE t1 USING $create;
+  }]
+
+
+  if {$pending} { execsql BEGIN }
+
+  foreach {a b c d} {
+    "A B C" "D E F" "G H I" "J K L"
+    "B C D" "E F G" "H I J" "K L A"
+    "C D E" "F G H" "I J K" "L A B"
+    "D E F" "G H I" "J K L" "A B C"
+    "E F G" "H I J" "K L A" "B C D"
+    "F G H" "I J K" "L A B" "C D E"
+  } {
+    execsql { INSERT INTO t1 VALUES($a, $b, $c, $d) }
+  }
+
+  do_fts3query_test 6.$tn.1 t1 {b:G}
+  do_fts3query_test 6.$tn.2 t1 {b:G AND c:I}
+  do_fts3query_test 6.$tn.3 t1 {b:G NEAR c:I}
+  do_fts3query_test 6.$tn.4 t1 {a:C OR b:G OR c:K OR d:C}
+
+  do_fts3query_test 6.$tn.5 t1 {a:G OR b:G}
+
+  catchsql { COMMIT }
+}
+
+foreach {tn create} {
+  1    "fts4(x)"
+  2    "fts4(x, order=DESC)"
+} {
+  execsql [subst {
+    DROP TABLE IF EXISTS t1;
+    CREATE VIRTUAL TABLE t1 USING $create;
+  }]
+
+  foreach {x} {
+    "F E N O T K X V A X I E X A P G Q V H U"
+    "R V A E T C V Q N I E L O N U G J K L U"
+    "U Y I G W M V F J L X I D C H F P J Q B"
+    "S G D Z X R P G S S Y B K A S G A I L L"
+    "L S I C H T Z S R Q P R N K J X L F M J"
+    "C C C D P X B Z C M A D A C X S B T X V"
+    "W Y J M D R G V R K B X S A W R I T N C"
+    "P K L W T M S P O Y Y V V O E H Q A I R"
+    "C D Y I C Z F H J C O Y A Q F L S B D K"
+    "P G S C Y C Y V I M B D S Z D D Y W I E"
+    "Z K Z U E E S F Y X T U A L W O U J C Q"
+    "P A T Z S W L P L Q V Y Y I P W U X S S"
+    "I U I H U O F Z F R H R F T N D X A G M"
+    "N A B M S H K X S O Y D T X S B R Y H Z"
+    "L U D A S K I L S V Z J P U B E B Y H M"
+  } {
+    execsql { INSERT INTO t1 VALUES($x) }
+  }
+
+  # Add extra documents to the database such that token "B" will be considered
+  # deferrable if considering the other tokens means that 2 or fewer documents
+  # will be loaded into memory.
+  #
+  fts3_make_deferrable t1 B 2
+
+  # B is not deferred in either of the first two tests below, since filtering
+  # on "M" or "D" returns 10 documents or so. But filtering on "M * D" only
+  # returns 2, so B is deferred in this case.
+  #
+  do_fts3query_test 7.$tn.1             t1 {"M B"}
+  do_fts3query_test 7.$tn.2             t1 {"B D"}
+  do_fts3query_test 7.$tn.3 -deferred B t1 {"M B D"}
+}
+
+set sqlite_fts3_enable_parentheses $sfep
+finish_test
diff --git a/test/fts3aux1.test b/test/fts3aux1.test
new file mode 100644
index 0000000000000000000000000000000000000000..1524d6d30f3616cb88030dad3f65f06aaf5c55bd
--- /dev/null
+++ b/test/fts3aux1.test
@@ -0,0 +1,531 @@
+# 2011 January 27
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS3 module.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable !fts3 { finish_test ; return }
+set ::testprefix fts3aux1
+
+do_execsql_test 1.1 {
+  CREATE VIRTUAL TABLE t1 USING fts4;
+  INSERT INTO t1 VALUES('one two three four');
+  INSERT INTO t1 VALUES('three four five six');
+  INSERT INTO t1 VALUES('one three five seven');
+
+  CREATE VIRTUAL TABLE terms USING fts4aux(t1);
+  SELECT term, documents, occurrences FROM terms WHERE col = '*';
+} {
+  five  2 2     four  2 2     one   2 2     seven 1 1 
+  six   1 1     three 3 3     two   1 1
+}
+
+do_execsql_test 1.2 {
+  INSERT INTO t1 VALUES('one one one three three three');
+  SELECT term, documents, occurrences FROM terms WHERE col = '*';
+} { 
+  five  2 2     four  2 2     one   3 5     seven 1 1 
+  six   1 1     three 4 6     two   1 1
+}
+
+do_execsql_test 1.3.1 { DELETE FROM t1; }
+do_execsql_test 1.3.2 {
+  SELECT term, documents, occurrences FROM terms WHERE col = '*';
+}
+
+do_execsql_test 1.4 {
+  INSERT INTO t1 VALUES('a b a b a b a');
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  SELECT term, documents, occurrences FROM terms WHERE col = '*';
+} {a 256 1024    b 256 768}
+
+#-------------------------------------------------------------------------
+# The following tests verify that the fts4aux module uses the full-text
+# index to reduce the number of rows scanned in the following circumstances:
+#
+#   * when there is equality comparison against the term column using the 
+#     BINARY collating sequence. 
+#
+#   * when there is a range constraint on the term column using the BINARY 
+#     collating sequence. 
+#
+# And also uses the full-text index to optimize ORDER BY clauses of the 
+# form "ORDER BY term ASC" or equivalent.
+#
+# Test organization is:
+#
+#   fts3aux1-2.1.*: equality constraints.
+#   fts3aux1-2.2.*: range constraints.
+#   fts3aux1-2.3.*: ORDER BY optimization.
+# 
+
+do_execsql_test 2.0 {
+  DROP TABLE t1;
+  DROP TABLE terms;
+
+  CREATE VIRTUAL TABLE x1 USING fts4(x);
+  INSERT INTO x1(x1) VALUES('nodesize=24');
+  CREATE VIRTUAL TABLE terms USING fts4aux(x1);
+
+  CREATE VIEW terms_v AS 
+  SELECT term, documents, occurrences FROM terms WHERE col = '*';
+
+  INSERT INTO x1 VALUES('braes brag bragged bragger bragging');
+  INSERT INTO x1 VALUES('brags braid braided braiding braids');
+  INSERT INTO x1 VALUES('brain brainchild brained braining brains');
+  INSERT INTO x1 VALUES('brainstem brainstems brainstorm brainstorms'); 
+}
+
+proc rec {varname x} {
+  global $varname
+  incr $varname
+  return 1
+}
+db func rec rec
+
+# Use EQP to show that the WHERE expression "term='braid'" uses a different
+# index number (1) than "+term='braid'" (0).
+#
+do_execsql_test 2.1.1.1 {
+  EXPLAIN QUERY PLAN SELECT * FROM terms WHERE term='braid'
+} {/*SCAN terms VIRTUAL TABLE INDEX 1:*/}
+do_execsql_test 2.1.1.2 {
+  EXPLAIN QUERY PLAN SELECT * FROM terms WHERE +term='braid'
+} {/*SCAN terms VIRTUAL TABLE INDEX 0:*/}
+
+# Now show that using "term='braid'" means the virtual table returns
+# only 1 row to SQLite, but "+term='braid'" means all 19 are returned.
+#
+do_test 2.1.2.1 {
+  set cnt 0
+  execsql { SELECT * FROM terms_v WHERE rec('cnt', term) AND term='braid' }
+  set cnt
+} {1}
+do_test 2.1.2.2 {
+  set cnt 0
+  execsql { SELECT * FROM terms_v WHERE rec('cnt', term) AND +term='braid' }
+  set cnt
+} {19}
+
+# Similar to the test immediately above, but using a term ("breakfast") that 
+# is not featured in the dataset.
+#
+do_test 2.1.3.1 {
+  set cnt 0
+  execsql { SELECT * FROM terms_v WHERE rec('cnt', term) AND term='breakfast' }
+  set cnt
+} {0}
+do_test 2.1.3.2 {
+  set cnt 0
+  execsql { SELECT * FROM terms_v WHERE rec('cnt', term) AND +term='breakfast' }
+  set cnt
+} {19}
+
+do_execsql_test 2.1.4.1 { SELECT * FROM terms_v WHERE term='braid' } {braid 1 1}
+do_execsql_test 2.1.4.2 { SELECT * FROM terms_v WHERE +term='braid'} {braid 1 1}
+do_execsql_test 2.1.4.3 { SELECT * FROM terms_v WHERE term='breakfast'  } {}
+do_execsql_test 2.1.4.4 { SELECT * FROM terms_v WHERE +term='breakfast' } {}
+
+do_execsql_test 2.1.4.5 { SELECT * FROM terms_v WHERE term='cba'  } {}
+do_execsql_test 2.1.4.6 { SELECT * FROM terms_v WHERE +term='cba' } {}
+do_execsql_test 2.1.4.7 { SELECT * FROM terms_v WHERE term='abc'  } {}
+do_execsql_test 2.1.4.8 { SELECT * FROM terms_v WHERE +term='abc' } {}
+
+# Special case: term=NULL
+#
+do_execsql_test 2.1.5 { SELECT * FROM terms WHERE term=NULL } {}
+
+do_execsql_test 2.2.1.1 {
+  EXPLAIN QUERY PLAN SELECT * FROM terms WHERE term>'brain'
+} {/*SCAN terms VIRTUAL TABLE INDEX 2:*/}
+do_execsql_test 2.2.1.2 {
+  EXPLAIN QUERY PLAN SELECT * FROM terms WHERE +term>'brain'
+} {/*SCAN terms VIRTUAL TABLE INDEX 0:*/}
+
+do_execsql_test 2.2.1.3 {
+  EXPLAIN QUERY PLAN SELECT * FROM terms WHERE term<'brain'
+} {/*SCAN terms VIRTUAL TABLE INDEX 4:*/}
+do_execsql_test 2.2.1.4 {
+  EXPLAIN QUERY PLAN SELECT * FROM terms WHERE +term<'brain'
+} {/*SCAN terms VIRTUAL TABLE INDEX 0:*/}
+
+do_execsql_test 2.2.1.5 {
+  EXPLAIN QUERY PLAN SELECT * FROM terms WHERE term BETWEEN 'brags' AND 'brain'
+} {/*SCAN terms VIRTUAL TABLE INDEX 6:*/}
+do_execsql_test 2.2.1.6 {
+  EXPLAIN QUERY PLAN SELECT * FROM terms WHERE +term BETWEEN 'brags' AND 'brain'
+} {/*SCAN terms VIRTUAL TABLE INDEX 0:*/}
+
+do_test 2.2.2.1 {
+  set cnt 0
+  execsql { SELECT * FROM terms WHERE rec('cnt', term) AND term>'brain' }
+  set cnt
+} {18}
+do_test 2.2.2.2 {
+  set cnt 0
+  execsql { SELECT * FROM terms WHERE rec('cnt', term) AND +term>'brain' }
+  set cnt
+} {38}
+do_execsql_test 2.2.2.3 {
+  SELECT term, documents, occurrences FROM terms_v WHERE term>'brain'
+} {
+  brainchild 1 1 brained 1 1 braining 1 1 brains 1 1 
+  brainstem 1 1 brainstems 1 1 brainstorm 1 1 brainstorms 1 1
+}
+do_execsql_test 2.2.2.4 {
+  SELECT term, documents, occurrences FROM terms_v WHERE +term>'brain'
+} {
+  brainchild 1 1 brained 1 1 braining 1 1 brains 1 1 
+  brainstem 1 1 brainstems 1 1 brainstorm 1 1 brainstorms 1 1
+}
+do_execsql_test 2.2.2.5 {
+  SELECT term, documents, occurrences FROM terms_v WHERE term>='brain'
+} {
+  brain 1 1
+  brainchild 1 1 brained 1 1 braining 1 1 brains 1 1 
+  brainstem 1 1 brainstems 1 1 brainstorm 1 1 brainstorms 1 1
+}
+do_execsql_test 2.2.2.6 {
+  SELECT term, documents, occurrences FROM terms_v WHERE +term>='brain'
+} {
+  brain 1 1
+  brainchild 1 1 brained 1 1 braining 1 1 brains 1 1 
+  brainstem 1 1 brainstems 1 1 brainstorm 1 1 brainstorms 1 1
+}
+
+do_execsql_test 2.2.2.7 {
+  SELECT term, documents, occurrences FROM terms_v WHERE term>='abc'
+} {
+  braes 1 1 brag 1 1 bragged 1 1 bragger 1 1 
+  bragging 1 1 brags 1 1 braid 1 1 braided 1 1 
+  braiding 1 1 braids 1 1 brain 1 1 brainchild 1 1 
+  brained 1 1 braining 1 1 brains 1 1 brainstem 1 1 
+  brainstems 1 1 brainstorm 1 1 brainstorms 1 1
+}
+do_execsql_test 2.2.2.8 {
+  SELECT term, documents, occurrences FROM terms_v WHERE +term>='abc'
+} {
+  braes 1 1 brag 1 1 bragged 1 1 bragger 1 1 
+  bragging 1 1 brags 1 1 braid 1 1 braided 1 1 
+  braiding 1 1 braids 1 1 brain 1 1 brainchild 1 1 
+  brained 1 1 braining 1 1 brains 1 1 brainstem 1 1 
+  brainstems 1 1 brainstorm 1 1 brainstorms 1 1
+}
+
+do_execsql_test 2.2.2.9 {
+  SELECT term, documents, occurrences FROM terms_v WHERE term>='brainstorms'
+} {brainstorms 1 1}
+do_execsql_test 2.2.2.10 {
+  SELECT term, documents, occurrences FROM terms_v WHERE term>='brainstorms'
+} {brainstorms 1 1}
+do_execsql_test 2.2.2.11 { SELECT * FROM terms_v WHERE term>'brainstorms' } {}
+do_execsql_test 2.2.2.12 { SELECT * FROM terms_v WHERE term>'brainstorms' } {}
+
+do_execsql_test 2.2.2.13 { SELECT * FROM terms_v WHERE term>'cba' } {}
+do_execsql_test 2.2.2.14 { SELECT * FROM terms_v WHERE term>'cba' } {}
+
+do_test 2.2.3.1 {
+  set cnt 0
+  execsql { SELECT * FROM terms WHERE rec('cnt', term) AND term<'brain' }
+  set cnt
+} {22}
+do_test 2.2.3.2 {
+  set cnt 0
+  execsql { SELECT * FROM terms WHERE rec('cnt', term) AND +term<'brain' }
+  set cnt
+} {38}
+do_execsql_test 2.2.3.3 {
+  SELECT term, documents, occurrences FROM terms_v WHERE term<'brain'
+} {
+  braes 1 1 brag 1 1 bragged 1 1 bragger 1 1 bragging 1 1 
+  brags 1 1 braid 1 1 braided 1 1 braiding 1 1 braids 1 1
+}
+do_execsql_test 2.2.3.4 {
+  SELECT term, documents, occurrences FROM terms_v WHERE +term<'brain'
+} {
+  braes 1 1 brag 1 1 bragged 1 1 bragger 1 1 bragging 1 1 
+  brags 1 1 braid 1 1 braided 1 1 braiding 1 1 braids 1 1
+}
+do_execsql_test 2.2.3.5 {
+  SELECT term, documents, occurrences FROM terms_v WHERE term<='brain'
+} {
+  braes 1 1 brag 1 1 bragged 1 1 bragger 1 1 bragging 1 1 
+  brags 1 1 braid 1 1 braided 1 1 braiding 1 1 braids 1 1
+  brain 1 1
+}
+do_execsql_test 2.2.3.6 {
+  SELECT term, documents, occurrences FROM terms_v WHERE +term<='brain'
+} {
+  braes 1 1 brag 1 1 bragged 1 1 bragger 1 1 bragging 1 1 
+  brags 1 1 braid 1 1 braided 1 1 braiding 1 1 braids 1 1
+  brain 1 1
+}
+
+do_test 2.2.4.1 {
+  set cnt 0
+  execsql { 
+    SELECT term, documents, occurrences FROM terms 
+    WHERE rec('cnt', term) AND term BETWEEN 'brags' AND 'brain' 
+  }
+  set cnt
+} {12}
+do_test 2.2.4.2 {
+  set cnt 0
+  execsql { 
+    SELECT term, documents, occurrences FROM terms 
+    WHERE rec('cnt', term) AND +term BETWEEN 'brags' AND 'brain' 
+  }
+  set cnt
+} {38}
+do_execsql_test 2.2.4.3 {
+  SELECT term, documents, occurrences FROM terms_v 
+  WHERE rec('cnt', term) AND term BETWEEN 'brags' AND 'brain' 
+} {
+  brags 1 1 braid 1 1 braided 1 1 braiding 1 1 braids 1 1 brain 1 1 
+}
+do_execsql_test 2.2.4.4 {
+  SELECT term, documents, occurrences FROM terms_v 
+  WHERE rec('cnt', term) AND +term BETWEEN 'brags' AND 'brain' 
+} {
+  brags 1 1 braid 1 1 braided 1 1 braiding 1 1 braids 1 1 brain 1 1 
+}
+do_execsql_test 2.2.4.5 {
+  SELECT term, documents, occurrences FROM terms_v 
+  WHERE rec('cnt', term) AND term > 'brags' AND term < 'brain' 
+} {
+  braid 1 1 braided 1 1 braiding 1 1 braids 1 1
+}
+do_execsql_test 2.2.4.6 {
+  SELECT term, documents, occurrences FROM terms_v 
+  WHERE rec('cnt', term) AND +term > 'brags' AND +term < 'brain' 
+} {
+  braid 1 1 braided 1 1 braiding 1 1 braids 1 1
+}
+
+# Check that "ORDER BY term ASC" and equivalents are sorted by the
+# virtual table implementation. Any other ORDER BY clause requires
+# SQLite to sort results using a temporary b-tree.
+#
+foreach {tn sort orderby} {
+  1    0    "ORDER BY term ASC"
+  2    0    "ORDER BY term"
+  3    1    "ORDER BY term DESC"
+  4    1    "ORDER BY documents ASC"
+  5    1    "ORDER BY documents"
+  6    1    "ORDER BY documents DESC"
+  7    1    "ORDER BY occurrences ASC"
+  8    1    "ORDER BY occurrences"
+  9    1    "ORDER BY occurrences DESC"
+} {
+
+  set res {SCAN terms VIRTUAL TABLE INDEX 0:}
+  if {$sort} { append res {*USE TEMP B-TREE FOR ORDER BY} }
+  set res "/*$res*/"
+
+  set sql "SELECT * FROM terms $orderby"
+  do_execsql_test 2.3.1.$tn "EXPLAIN QUERY PLAN $sql" $res
+}
+
+#-------------------------------------------------------------------------
+# The next set of tests, fts3aux1-3.*, test error conditions in the 
+# fts4aux module. Except, fault injection testing (OOM, IO error etc.) is 
+# done in fts3fault2.test
+#
+
+do_execsql_test 3.1.1 {
+  CREATE VIRTUAL TABLE t2 USING fts4;
+}
+
+do_catchsql_test 3.1.2 {
+  CREATE VIRTUAL TABLE terms2 USING fts4aux;
+} {1 {invalid arguments to fts4aux constructor}}
+do_catchsql_test 3.1.3 {
+  CREATE VIRTUAL TABLE terms2 USING fts4aux(t2, t2);
+} {1 {invalid arguments to fts4aux constructor}}
+
+do_execsql_test 3.2.1 {
+  CREATE VIRTUAL TABLE terms3 USING fts4aux(does_not_exist)
+}
+do_catchsql_test 3.2.2 {
+  SELECT * FROM terms3
+} {1 {SQL logic error}}
+do_catchsql_test 3.2.3 {
+  SELECT * FROM terms3 WHERE term = 'abc'
+} {1 {SQL logic error}}
+
+do_catchsql_test 3.3.1 {
+  INSERT INTO terms VALUES(1,2,3);
+} {1 {table terms may not be modified}}
+do_catchsql_test 3.3.2 {
+  DELETE FROM terms
+} {1 {table terms may not be modified}}
+do_catchsql_test 3.3.3 {
+  UPDATE terms set documents = documents+1;
+} {1 {table terms may not be modified}}
+
+
+#-------------------------------------------------------------------------
+# The following tests - fts4aux-4.* - test that joins work with fts4aux
+# tables. And that fts4aux provides reasonably sane cost information via
+# xBestIndex to the query planner.
+#
+db close
+forcedelete test.db
+sqlite3 db test.db
+do_execsql_test 4.1 {
+  CREATE VIRTUAL TABLE x1 USING fts4(x);
+  CREATE VIRTUAL TABLE terms USING fts4aux(x1);
+  CREATE TABLE x2(y);
+  CREATE TABLE x3(y);
+  CREATE INDEX i1 ON x3(y);
+
+  INSERT INTO x1 VALUES('a b c d e');
+  INSERT INTO x1 VALUES('f g h i j');
+  INSERT INTO x1 VALUES('k k l l a');
+
+  INSERT INTO x2 SELECT term FROM terms WHERE col = '*';
+  INSERT INTO x3 SELECT term FROM terms WHERE col = '*';
+}
+
+proc do_plansql_test {tn sql r1 r2} {
+  do_eqp_test $tn.eqp $sql $r1
+  do_execsql_test $tn $sql $r2
+}
+
+do_plansql_test 4.2 {
+  SELECT y FROM x2, terms WHERE y = term AND col = '*'
+} {
+  QUERY PLAN
+  |--SCAN x2
+  `--SCAN terms VIRTUAL TABLE INDEX 1:
+} {
+  a b c d e f g h i j k l
+}
+
+do_plansql_test 4.3 {
+  SELECT y FROM terms, x2 WHERE y = term AND col = '*'
+} {
+  QUERY PLAN
+  |--SCAN x2
+  `--SCAN terms VIRTUAL TABLE INDEX 1:
+} {
+  a b c d e f g h i j k l
+}
+
+do_plansql_test 4.4 {
+  SELECT y FROM x3, terms WHERE y = term AND col = '*'
+} {
+  QUERY PLAN
+  |--SCAN terms VIRTUAL TABLE INDEX 0:
+  `--SEARCH x3 USING COVERING INDEX i1 (y=?)
+} {
+  a b c d e f g h i j k l
+}
+
+do_plansql_test 4.5 {
+  SELECT y FROM terms, x3 WHERE y = term AND occurrences>1 AND col = '*'
+} {
+  QUERY PLAN
+  |--SCAN terms VIRTUAL TABLE INDEX 0:
+  `--SEARCH x3 USING COVERING INDEX i1 (y=?)
+} {
+  a k l
+}
+
+#-------------------------------------------------------------------------
+# The following tests check that fts4aux can handle an fts table with an
+# odd name (one that requires quoting for use in SQL statements). And that
+# the argument to the fts4aux constructor is properly dequoted before use.
+#
+do_execsql_test 5.1 {
+  CREATE VIRTUAL TABLE "abc '!' def" USING fts4(x, y);
+  INSERT INTO "abc '!' def" VALUES('XX', 'YY');
+
+  CREATE VIRTUAL TABLE terms3 USING fts4aux("abc '!' def");
+  SELECT * FROM terms3;
+} {xx * 1 1 xx 0 1 1 yy * 1 1 yy 1 1 1}
+
+do_execsql_test 5.2 {
+  CREATE VIRTUAL TABLE "%%^^%%" USING fts4aux('abc ''!'' def');
+  SELECT * FROM "%%^^%%";
+} {xx * 1 1 xx 0 1 1 yy * 1 1 yy 1 1 1}
+
+#-------------------------------------------------------------------------
+# Test that we can create an fts4aux table in the temp database.
+#
+forcedelete test.db2
+do_execsql_test 6.1 {
+  CREATE VIRTUAL TABLE ft1 USING fts4(x, y);
+  INSERT INTO ft1 VALUES('a b', 'c d');
+  INSERT INTO ft1 VALUES('e e', 'c d');
+  INSERT INTO ft1 VALUES('a a', 'b b');
+  CREATE VIRTUAL TABLE temp.aux1 USING fts4aux(main, ft1);
+  SELECT * FROM aux1;
+} {
+    a * 2 3 a 0 2 3 
+    b * 2 3 b 0 1 1 b 1 1 2 
+    c * 2 2 c 1 2 2 
+    d * 2 2 d 1 2 2 
+    e * 1 2 e 0 1 2
+}
+
+do_execsql_test 6.2 {
+  ATTACH 'test.db2' AS att;
+  CREATE VIRTUAL TABLE att.ft1 USING fts4(x, y);
+  INSERT INTO att.ft1 VALUES('v w', 'x y');
+  INSERT INTO att.ft1 VALUES('z z', 'x y');
+  INSERT INTO att.ft1 VALUES('v v', 'w w');
+  CREATE VIRTUAL TABLE temp.aux2 USING fts4aux(att, ft1);
+  SELECT * FROM aux2;
+} {
+    v * 2 3 v 0 2 3 
+    w * 2 3 w 0 1 1 w 1 1 2 
+    x * 2 2 x 1 2 2 
+    y * 2 2 y 1 2 2 
+    z * 1 2 z 0 1 2
+}
+
+foreach {tn q res1 res2} {
+  1  { SELECT * FROM %%% WHERE term = 'a' } {a * 2 3 a 0 2 3} {}
+  2  { SELECT * FROM %%% WHERE term = 'x' } {} {x * 2 2 x 1 2 2} 
+
+  3  { SELECT * FROM %%% WHERE term >= 'y' } 
+     {} {y * 2 2 y 1 2 2 z * 1 2 z 0 1 2}
+
+  4  { SELECT * FROM %%% WHERE term <= 'c' } 
+     {a * 2 3 a 0 2 3 b * 2 3 b 0 1 1 b 1 1 2 c * 2 2 c 1 2 2} {}
+} {
+  set sql1 [string map {%%% aux1} $q]
+  set sql2 [string map {%%% aux2} $q]
+
+  do_execsql_test 7.$tn.1 $sql1 $res1
+  do_execsql_test 7.$tn.2 $sql2 $res2
+}
+
+do_test 8.1 {
+  catchsql { CREATE VIRTUAL TABLE att.aux3 USING fts4aux(main, ft1) }
+} {1 {invalid arguments to fts4aux constructor}}
+
+do_test 8.2 {
+  execsql {DETACH att}
+  catchsql { SELECT * FROM aux2 }
+} {1 {SQL logic error}}
+
+finish_test
diff --git a/test/fts3aux2.test b/test/fts3aux2.test
new file mode 100644
index 0000000000000000000000000000000000000000..95540225590b1cd67069b7b8d08c782b45942a9d
--- /dev/null
+++ b/test/fts3aux2.test
@@ -0,0 +1,168 @@
+# 2011 January 27
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS3 module.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable !fts3 { finish_test ; return }
+set ::testprefix fts3aux2
+
+do_execsql_test 1.1 {
+  CREATE VIRTUAL TABLE t1 USING fts4(a, b, languageid=l);
+  INSERT INTO t1(a, b, l) VALUES
+    ('zero zero', 'zero zero', 0),
+    ('one two', 'three four', 1),
+    ('five six', 'seven eight', 2)
+  ;
+  CREATE VIRTUAL TABLE terms USING fts4aux(t1);
+} {}
+
+do_execsql_test 1.2.1 {
+  SELECT term, documents, occurrences, languageid FROM terms WHERE col = '*';
+} {zero 1 4 0}
+
+do_execsql_test 1.2.2 {
+  SELECT * FROM terms;
+} {zero * 1 4 zero 0 1 2 zero 1 1 2}
+
+do_execsql_test 1.2.3 {
+  SELECT * FROM terms WHERE languageid='';
+} {}
+
+do_execsql_test 1.2.4 {
+  SELECT * FROM terms WHERE languageid=-1;
+} {}
+
+do_execsql_test 1.2.5 {
+  SELECT * FROM terms WHERE languageid=9223372036854775807;
+} {}
+
+do_execsql_test 1.2.6 {
+  SELECT * FROM terms WHERE languageid=-9223372036854775808;
+} {}
+
+do_execsql_test 1.2.7 {
+  SELECT * FROM terms WHERE languageid=NULL;
+} {}
+
+do_execsql_test 1.3.1 {
+  SELECT term, documents, occurrences, languageid 
+  FROM terms WHERE col = '*' AND languageid=1;
+} {
+  four 1 1 1 one 1 1 1 three 1 1 1 two 1 1 1 
+}
+
+do_execsql_test 1.3.2 {
+  SELECT term, col, documents, occurrences, languageid 
+  FROM terms WHERE languageid=1;
+} {
+  four * 1 1 1   four 1 1 1 1 
+  one * 1 1 1    one 0 1 1 1 
+  three * 1 1 1  three 1 1 1 1 
+  two * 1 1 1    two 0 1 1 1 
+}
+
+do_execsql_test 1.3.3 {
+  SELECT term, col, documents, occurrences, languageid 
+  FROM terms WHERE languageid=1 AND term='zero'
+} {
+}
+
+do_execsql_test 1.3.4 {
+  SELECT term, col, documents, occurrences, languageid 
+  FROM terms WHERE languageid='1' AND term='two'
+} {
+  two * 1 1 1    two 0 1 1 1 
+}
+
+do_execsql_test 1.3.5 {
+  SELECT term, col, documents, occurrences, languageid 
+  FROM terms WHERE languageid='+1' AND term>'four'
+} {
+  one * 1 1 1    one 0 1 1 1 
+  three * 1 1 1  three 1 1 1 1 
+  two * 1 1 1    two 0 1 1 1 
+}
+
+do_execsql_test 1.4.1 {
+  SELECT term, documents, occurrences, languageid 
+  FROM terms WHERE col = '*' AND languageid=2;
+} {
+  eight 1 1 2 five 1 1 2 seven 1 1 2 six 1 1 2
+}
+
+do_execsql_test 1.4.2 {
+  SELECT term, col, documents, occurrences, languageid 
+  FROM terms WHERE languageid=2;
+} {
+  eight * 1 1 2    eight 1 1 1 2 
+  five * 1 1 2     five 0 1 1 2 
+  seven * 1 1 2    seven 1 1 1 2 
+  six * 1 1 2      six 0 1 1 2
+}
+
+do_execsql_test 1.4.3 {
+  SELECT term, col, documents, occurrences, languageid 
+  FROM terms WHERE languageid=2 AND term='five';
+} {
+  five * 1 1 2     five 0 1 1 2 
+}
+
+do_execsql_test 1.4.4 {
+  SELECT term, col, documents, occurrences, languageid 
+  FROM terms WHERE term='five' AND languageid=2 
+} {
+  five * 1 1 2     five 0 1 1 2 
+}
+
+do_execsql_test 1.4.5 {
+  SELECT term, col, documents, occurrences, languageid 
+  FROM terms WHERE term>='seven' AND languageid=2
+} {
+  seven * 1 1 2    seven 1 1 1 2 
+  six * 1 1 2      six 0 1 1 2
+}
+
+do_execsql_test 1.4.6 {
+  SELECT term, col, documents, occurrences, languageid 
+  FROM terms WHERE term>='e' AND term<'seven' AND languageid=2
+} {
+  eight * 1 1 2    eight 1 1 1 2 
+  five * 1 1 2     five 0 1 1 2 
+}
+
+#-------------------------------------------------------------------------
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE ft USING fts3();
+  INSERT INTO ft VALUES('a_234567890123456789');
+  INSERT INTO ft VALUES('b_234567890123456789');
+  INSERT INTO ft VALUES('c_234567890123456789');
+  CREATE VIRTUAL TABLE t2 USING fts4aux(ft);
+}
+
+do_execsql_test 2.1 {
+  SELECT term FROM t2 WHERE term=X'625f323334353637383930313233343536373839';
+}
+
+do_execsql_test 2.2 {
+  SELECT term FROM t2 WHERE term<X'625f003334353637383930313233343536373839';
+} {
+  234567890123456789 234567890123456789 a a b b
+}
+
+do_execsql_test 2.3 {
+  SELECT term FROM t2 WHERE term=X'625f003334353637383930313233343536373839';
+}
+
+
+finish_test
diff --git a/test/fts3b.test b/test/fts3b.test
new file mode 100644
index 0000000000000000000000000000000000000000..ee0a1cea68539f033d0818d2241070f7136f0a74
--- /dev/null
+++ b/test/fts3b.test
@@ -0,0 +1,230 @@
+# 2007 August 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  This
+# script tests for the fts2 rowid-versus-vacuum problem (ticket #2566).
+#
+# $Id: fts3b.test,v 1.3 2007/09/13 18:14:49 shess Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If SQLITE_ENABLE_FTS3 is not defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+db eval {
+  CREATE VIRTUAL TABLE t1 USING fts3(c);
+  INSERT INTO t1 (c) VALUES('this is a test');
+  INSERT INTO t1 (c) VALUES('that was a test');
+  INSERT INTO t1 (c) VALUES('this is fun');
+  DELETE FROM t1 WHERE c = 'that was a test';
+}
+
+# Baseline test.
+do_test fts3b-1.1 {
+  execsql {
+    SELECT rowid FROM t1 WHERE c MATCH 'this';
+  }
+} {1 3}
+
+db eval {VACUUM}
+
+# The VACUUM renumbered the t1_content table in fts2, which breaks
+# this.
+do_test fts3b-1.2 {
+  execsql {
+    SELECT rowid FROM t1 WHERE c MATCH 'this';
+  }
+} {1 3}
+
+# The t2 table is unfortunately pretty contrived.  We need documents
+# that are bigger than ROOT_MAX (1024) to force segments out of the
+# segdir and into %_segments.  We also need to force segment merging
+# to generate a hole in the %_segments table, which needs more than 16
+# docs.  Beyond that, to test correct operation of BLOCK_SELECT_STMT,
+# we need to merge a mult-level tree, which is where the 10,000 comes
+# from.  Which is slow, thus the set of transactions, with the 500
+# being a number such that 10,000/500 > 16.
+set text {
+  Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Maecenas
+  iaculis mollis ipsum. Praesent rhoncus placerat justo. Duis non quam
+  sed turpis posuere placerat. Curabitur et lorem in lorem porttitor
+  aliquet. Pellentesque bibendum tincidunt diam. Vestibulum blandit
+  ante nec elit. In sapien diam, facilisis eget, dictum sed, viverra
+  at, felis. Vestibulum magna. Sed magna dolor, vestibulum rhoncus,
+  ornare vel, vulputate sit amet, felis. Integer malesuada, tellus at
+  luctus gravida, diam nunc porta nibh, nec imperdiet massa metus eu
+  lectus. Aliquam nisi. Nunc fringilla nulla at lectus. Suspendisse
+  potenti. Cum sociis natoque penatibus et magnis dis parturient
+  montes, nascetur ridiculus mus. Pellentesque odio nulla, feugiat eu,
+  suscipit nec, consequat quis, risus.
+}
+append text $text
+
+db eval {CREATE VIRTUAL TABLE t2 USING fts3(c)}
+set res {}
+db eval {BEGIN}
+for {set ii 0} {$ii<10000} {incr ii} {
+  db eval {INSERT INTO t2 (c) VALUES ($text)}
+  lappend res [expr {$ii+1}]
+  if {($ii%500)==0} {
+    db eval {
+      COMMIT;
+      BEGIN;
+    }
+  }
+}
+db eval {COMMIT}
+
+do_test fts3b-2.1 {
+  execsql {
+    SELECT rowid FROM t2 WHERE c MATCH 'lorem';
+  }
+} $res
+
+db eval {VACUUM}
+
+# The VACUUM renumbered the t2_segment table in fts2, which would
+# break the following.
+do_test fts3b-2.2 {
+  execsql {
+    SELECT rowid FROM t2 WHERE c MATCH 'lorem';
+  }
+} $res
+
+# Since fts3 is already an API break, I've marked the table-named
+# column HIDDEN.
+
+db eval {
+  CREATE VIRTUAL TABLE t3 USING fts3(c);
+  INSERT INTO t3 (c) VALUES('this is a test');
+  INSERT INTO t3 (c) VALUES('that was a test');
+  INSERT INTO t3 (c) VALUES('this is fun');
+  DELETE FROM t3 WHERE c = 'that was a test';
+}
+
+# Test that the table-named column still works.
+do_test fts3b-3.1 {
+  execsql {
+    SELECT snippet(t3) FROM t3 WHERE t3 MATCH 'test';
+  }
+} {{this is a <b>test</b>}}
+
+# Test that the column doesn't appear when selecting all columns.
+do_test fts3b-3.2 {
+  execsql {
+    SELECT * FROM t3 WHERE rowid = 1;
+  }
+} {{this is a test}}
+
+# Test that the column doesn't conflict with inserts that don't name
+# columns.
+do_test fts3b-3.3 {
+  execsql {
+    INSERT INTO t3 VALUES ('another test');
+  }
+} {}
+
+# fts3 adds a new implicit column, docid, which acts as an alias for
+# rowid.
+
+db eval {
+  CREATE VIRTUAL TABLE t4 USING fts3(c);
+  INSERT INTO t4 (c) VALUES('this is a test');
+  INSERT INTO t4 (c) VALUES('that was a test');
+  INSERT INTO t4 (c) VALUES('this is fun');
+  DELETE FROM t4 WHERE c = 'that was a test';
+}
+
+# Test that docid is present and identical to rowid.
+do_test fts3b-4.1 {
+  execsql {
+    SELECT rowid FROM t4 WHERE rowid <> docid;
+  }
+} {}
+
+# Test that docid is hidden.
+do_test fts3b-4.2 {
+  execsql {
+    SELECT * FROM t4 WHERE rowid = 1;
+  }
+} {{this is a test}}
+
+# Test that docid can be selected.
+do_test fts3b-4.3 {
+  execsql {
+    SELECT docid, * FROM t4 WHERE rowid = 1;
+  }
+} {1 {this is a test}}
+
+# Test that docid can be used in WHERE.
+do_test fts3b-4.4 {
+  execsql {
+    SELECT docid, * FROM t4 WHERE docid = 1;
+  }
+} {1 {this is a test}}
+
+# Test that the column doesn't conflict with inserts that don't name
+# columns.  [Yes, this is the same as fts3b-3.3, here just in case the
+# goals of that test change.]
+do_test fts3b-4.5 {
+  execsql {
+    INSERT INTO t4 VALUES ('another test');
+  }
+} {}
+
+# Test that the docid can be forced on insert.
+do_test fts3b-4.6 {
+  execsql {
+    INSERT INTO t4 (docid, c) VALUES (10, 'yet another test');
+    SELECT * FROM t4 WHERE docid = 10;
+  }
+} {{yet another test}}
+
+# Test that rowid can also be forced.
+do_test fts3b-4.7 {
+  execsql {
+    INSERT INTO t4 (docid, c) VALUES (12, 'still testing');
+    SELECT * FROM t4 WHERE docid = 12;
+  }
+} {{still testing}}
+
+# If an insert tries to set both docid and rowid, require an error.
+do_test fts3b-4.8 {
+  catchsql {
+    INSERT INTO t4 (rowid, docid, c) VALUES (14, 15, 'bad test');
+    SELECT * FROM t4 WHERE docid = 14;
+  }
+} {1 {SQL logic error}}
+
+do_test fts3b-4.9 {
+  execsql { SELECT docid FROM t4 WHERE t4 MATCH 'testing' }
+} {12}
+do_test fts3b-4.10 {
+  execsql { 
+    UPDATE t4 SET docid = 14 WHERE docid = 12;
+    SELECT docid FROM t4 WHERE t4 MATCH 'testing';
+  }
+} {14}
+do_test fts3b-4.11 {
+  execsql { SELECT * FROM t4 WHERE rowid = 14; }
+} {{still testing}}
+do_test fts3b-4.12 {
+  execsql { SELECT * FROM t4 WHERE rowid = 12; }
+} {}
+do_test fts3b-4.13 {
+  execsql { SELECT docid FROM t4 WHERE t4 MATCH 'still'; }
+} {14}
+
+finish_test
diff --git a/test/fts3c.test b/test/fts3c.test
new file mode 100644
index 0000000000000000000000000000000000000000..6b63264a680c0df378d394abebc020ffac3c4aa7
--- /dev/null
+++ b/test/fts3c.test
@@ -0,0 +1,255 @@
+# 2008 June 26
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file exercises some new testing functions in the FTS3 module,
+# and then uses them to do some basic tests that FTS3 is internally
+# working as expected.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/fts3_common.tcl
+
+# If SQLITE_ENABLE_FTS3 is not defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+#*************************************************************************
+# Utility function to check for the expected terms in the segment
+# level/index.  _all version does same but for entire index.
+proc check_terms {test level index terms} {
+  set where "level = $level AND idx = $index"
+  do_test $test.terms [list fts3_terms t1 $where] $terms
+}
+proc check_terms_all {test terms} {
+  do_test $test.terms [list fts3_terms t1 1] $terms
+}
+
+# Utility function to check for the expected doclist for the term in
+# segment level/index.  _all version does same for entire index.
+proc check_doclist {test level index term doclist} {
+  set where "level = $level AND idx = $index"
+  do_test $test [list fts3_doclist t1 $term $where] $doclist
+}
+proc check_doclist_all {test term doclist} {
+  do_test $test [list fts3_doclist t1 $term 1] $doclist
+}
+
+#*************************************************************************
+# Test the segments resulting from straight-forward inserts.
+db eval {
+  DROP TABLE IF EXISTS t1;
+  CREATE VIRTUAL TABLE t1 USING fts3(c);
+  INSERT INTO t1 (docid, c) VALUES (1, 'This is a test');
+  INSERT INTO t1 (docid, c) VALUES (2, 'That was a test');
+  INSERT INTO t1 (docid, c) VALUES (3, 'This is a test');
+}
+
+# Check for expected segments and expected matches.
+do_test fts3c-1.0.segments {
+  execsql {
+    SELECT level, idx FROM t1_segdir ORDER BY level, idx;
+  }
+} {0 0 0 1 0 2}
+do_test fts3c-1.0.matches {
+  execsql {
+    SELECT OFFSETS(t1) FROM t1
+     WHERE t1 MATCH 'this OR that OR was OR a OR is OR test' ORDER BY docid;
+  }
+} [list {0 0 0 4 0 4 5 2 0 3 8 1 0 5 10 4} \
+        {0 1 0 4 0 2 5 3 0 3 9 1 0 5 11 4} \
+        {0 0 0 4 0 4 5 2 0 3 8 1 0 5 10 4}]
+
+# Check the specifics of the segments constructed.
+# Logical view of entire index.
+check_terms_all   fts3c-1.0.1   {a is test that this was}
+check_doclist_all fts3c-1.0.1.1 a {[1 0[2]] [2 0[2]] [3 0[2]]}
+check_doclist_all fts3c-1.0.1.2 is {[1 0[1]] [3 0[1]]}
+check_doclist_all fts3c-1.0.1.3 test {[1 0[3]] [2 0[3]] [3 0[3]]}
+check_doclist_all fts3c-1.0.1.4 that {[2 0[0]]}
+check_doclist_all fts3c-1.0.1.5 this {[1 0[0]] [3 0[0]]}
+check_doclist_all fts3c-1.0.1.6 was {[2 0[1]]}
+
+# Segment 0,0
+check_terms   fts3c-1.0.2   0 0 {a is test this}
+check_doclist fts3c-1.0.2.1 0 0 a {[1 0[2]]}
+check_doclist fts3c-1.0.2.2 0 0 is {[1 0[1]]}
+check_doclist fts3c-1.0.2.3 0 0 test {[1 0[3]]}
+check_doclist fts3c-1.0.2.4 0 0 this {[1 0[0]]}
+
+# Segment 0,1
+check_terms   fts3c-1.0.3   0 1 {a test that was}
+check_doclist fts3c-1.0.3.1 0 1 a {[2 0[2]]}
+check_doclist fts3c-1.0.3.2 0 1 test {[2 0[3]]}
+check_doclist fts3c-1.0.3.3 0 1 that {[2 0[0]]}
+check_doclist fts3c-1.0.3.4 0 1 was {[2 0[1]]}
+
+# Segment 0,2
+check_terms   fts3c-1.0.4   0 2 {a is test this}
+check_doclist fts3c-1.0.4.1 0 2 a {[3 0[2]]}
+check_doclist fts3c-1.0.4.2 0 2 is {[3 0[1]]}
+check_doclist fts3c-1.0.4.3 0 2 test {[3 0[3]]}
+check_doclist fts3c-1.0.4.4 0 2 this {[3 0[0]]}
+
+#*************************************************************************
+# Test the segments resulting from inserts followed by a delete.
+db eval {
+  DROP TABLE IF EXISTS t1;
+  CREATE VIRTUAL TABLE t1 USING fts3(c);
+  INSERT INTO t1 (docid, c) VALUES (1, 'This is a test');
+  INSERT INTO t1 (docid, c) VALUES (2, 'That was a test');
+  INSERT INTO t1 (docid, c) VALUES (3, 'This is a test');
+  DELETE FROM t1 WHERE docid = 1;
+}
+
+do_test fts3c-1.1.segments {
+  execsql {
+    SELECT level, idx FROM t1_segdir ORDER BY level, idx;
+  }
+} {0 0 0 1 0 2 0 3}
+do_test fts3c-1.1.matches {
+  execsql {
+    SELECT OFFSETS(t1) FROM t1
+     WHERE t1 MATCH 'this OR that OR was OR a OR is OR test' ORDER BY docid;
+  }
+} {{0 1 0 4 0 2 5 3 0 3 9 1 0 5 11 4} {0 0 0 4 0 4 5 2 0 3 8 1 0 5 10 4}}
+
+check_terms_all fts3c-1.1.1 {a is test that this was}
+check_doclist_all fts3c-1.1.1.1 a {[2 0[2]] [3 0[2]]}
+check_doclist_all fts3c-1.1.1.2 is {[3 0[1]]}
+check_doclist_all fts3c-1.1.1.3 test {[2 0[3]] [3 0[3]]}
+check_doclist_all fts3c-1.1.1.4 that {[2 0[0]]}
+check_doclist_all fts3c-1.1.1.5 this {[3 0[0]]}
+check_doclist_all fts3c-1.1.1.6 was {[2 0[1]]}
+
+check_terms fts3c-1.1.2 0 0 {a is test this}
+check_doclist fts3c-1.1.2.1 0 0 a {[1 0[2]]}
+check_doclist fts3c-1.1.2.2 0 0 is {[1 0[1]]}
+check_doclist fts3c-1.1.2.3 0 0 test {[1 0[3]]}
+check_doclist fts3c-1.1.2.4 0 0 this {[1 0[0]]}
+
+check_terms fts3c-1.1.3 0 1 {a test that was}
+check_doclist fts3c-1.1.3.1 0 1 a {[2 0[2]]}
+check_doclist fts3c-1.1.3.2 0 1 test {[2 0[3]]}
+check_doclist fts3c-1.1.3.3 0 1 that {[2 0[0]]}
+check_doclist fts3c-1.1.3.4 0 1 was {[2 0[1]]}
+
+check_terms fts3c-1.1.4 0 2 {a is test this}
+check_doclist fts3c-1.1.4.1 0 2 a {[3 0[2]]}
+check_doclist fts3c-1.1.4.2 0 2 is {[3 0[1]]}
+check_doclist fts3c-1.1.4.3 0 2 test {[3 0[3]]}
+check_doclist fts3c-1.1.4.4 0 2 this {[3 0[0]]}
+
+check_terms fts3c-1.1.5 0 3 {a is test this}
+check_doclist fts3c-1.1.5.1 0 3 a {[1]}
+check_doclist fts3c-1.1.5.2 0 3 is {[1]}
+check_doclist fts3c-1.1.5.3 0 3 test {[1]}
+check_doclist fts3c-1.1.5.4 0 3 this {[1]}
+
+#*************************************************************************
+# Test results when all references to certain tokens are deleted.
+db eval {
+  DROP TABLE IF EXISTS t1;
+  CREATE VIRTUAL TABLE t1 USING fts3(c);
+  INSERT INTO t1 (docid, c) VALUES (1, 'This is a test');
+  INSERT INTO t1 (docid, c) VALUES (2, 'That was a test');
+  INSERT INTO t1 (docid, c) VALUES (3, 'This is a test');
+  DELETE FROM t1 WHERE docid IN (1,3);
+}
+
+# Still 4 segments because 0,3 will contain deletes for docid 1 and 3.
+do_test fts3c-1.2.segments {
+  execsql {
+    SELECT level, idx FROM t1_segdir ORDER BY level, idx;
+  }
+} {0 0 0 1 0 2 0 3}
+do_test fts3c-1.2.matches {
+  execsql {
+    SELECT OFFSETS(t1) FROM t1
+     WHERE t1 MATCH 'this OR that OR was OR a OR is OR test' ORDER BY docid;
+  }
+} {{0 1 0 4 0 2 5 3 0 3 9 1 0 5 11 4}}
+
+check_terms_all fts3c-1.2.1 {a is test that this was}
+check_doclist_all fts3c-1.2.1.1 a {[2 0[2]]}
+check_doclist_all fts3c-1.2.1.2 is {}
+check_doclist_all fts3c-1.2.1.3 test {[2 0[3]]}
+check_doclist_all fts3c-1.2.1.4 that {[2 0[0]]}
+check_doclist_all fts3c-1.2.1.5 this {}
+check_doclist_all fts3c-1.2.1.6 was {[2 0[1]]}
+
+check_terms fts3c-1.2.2 0 0 {a is test this}
+check_doclist fts3c-1.2.2.1 0 0 a {[1 0[2]]}
+check_doclist fts3c-1.2.2.2 0 0 is {[1 0[1]]}
+check_doclist fts3c-1.2.2.3 0 0 test {[1 0[3]]}
+check_doclist fts3c-1.2.2.4 0 0 this {[1 0[0]]}
+
+check_terms fts3c-1.2.3 0 1 {a test that was}
+check_doclist fts3c-1.2.3.1 0 1 a {[2 0[2]]}
+check_doclist fts3c-1.2.3.2 0 1 test {[2 0[3]]}
+check_doclist fts3c-1.2.3.3 0 1 that {[2 0[0]]}
+check_doclist fts3c-1.2.3.4 0 1 was {[2 0[1]]}
+
+check_terms fts3c-1.2.4 0 2 {a is test this}
+check_doclist fts3c-1.2.4.1 0 2 a {[3 0[2]]}
+check_doclist fts3c-1.2.4.2 0 2 is {[3 0[1]]}
+check_doclist fts3c-1.2.4.3 0 2 test {[3 0[3]]}
+check_doclist fts3c-1.2.4.4 0 2 this {[3 0[0]]}
+
+check_terms fts3c-1.2.5 0 3 {a is test this}
+check_doclist fts3c-1.2.5.1 0 3 a {[1] [3]}
+check_doclist fts3c-1.2.5.2 0 3 is {[1] [3]}
+check_doclist fts3c-1.2.5.3 0 3 test {[1] [3]}
+check_doclist fts3c-1.2.5.4 0 3 this {[1] [3]}
+
+#*************************************************************************
+# Test results when everything is optimized manually.
+db eval {
+  DROP TABLE IF EXISTS t1;
+  CREATE VIRTUAL TABLE t1 USING fts3(c);
+  INSERT INTO t1 (docid, c) VALUES (1, 'This is a test');
+  INSERT INTO t1 (docid, c) VALUES (2, 'That was a test');
+  INSERT INTO t1 (docid, c) VALUES (3, 'This is a test');
+  DELETE FROM t1 WHERE docid IN (1,3);
+  DROP TABLE IF EXISTS t1old;
+  ALTER TABLE t1 RENAME TO t1old;
+  CREATE VIRTUAL TABLE t1 USING fts3(c);
+  INSERT INTO t1 (docid, c) SELECT docid, c FROM t1old;
+  DROP TABLE t1old;
+}
+
+# Should be a single optimal segment with the same logical results.
+do_test fts3c-1.3.segments {
+  execsql {
+    SELECT level, idx FROM t1_segdir ORDER BY level, idx;
+  }
+} {0 0}
+do_test fts3c-1.3.matches {
+  execsql {
+    SELECT OFFSETS(t1) FROM t1
+     WHERE t1 MATCH 'this OR that OR was OR a OR is OR test' ORDER BY docid;
+  }
+} {{0 1 0 4 0 2 5 3 0 3 9 1 0 5 11 4}}
+
+check_terms_all fts3c-1.3.1 {a test that was}
+check_doclist_all fts3c-1.3.1.1 a {[2 0[2]]}
+check_doclist_all fts3c-1.3.1.2 test {[2 0[3]]}
+check_doclist_all fts3c-1.3.1.3 that {[2 0[0]]}
+check_doclist_all fts3c-1.3.1.4 was {[2 0[1]]}
+
+check_terms fts3c-1.3.2 0 0 {a test that was}
+check_doclist fts3c-1.3.2.1 0 0 a {[2 0[2]]}
+check_doclist fts3c-1.3.2.2 0 0 test {[2 0[3]]}
+check_doclist fts3c-1.3.2.3 0 0 that {[2 0[0]]}
+check_doclist fts3c-1.3.2.4 0 0 was {[2 0[1]]}
+
+finish_test
diff --git a/test/fts3comp1.test b/test/fts3comp1.test
new file mode 100644
index 0000000000000000000000000000000000000000..9f13aaa64ea59748dcad5ecd26c736ffda1be442
--- /dev/null
+++ b/test/fts3comp1.test
@@ -0,0 +1,115 @@
+# 2011 January 27
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS3 module.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable !fts3 { finish_test ; return }
+set ::testprefix fts3comp1
+
+# Create a pretend compression system. 
+#
+# Each time the [zip] function is called, an entry is added to the ::strings
+# array mapping from an integer key to the string argument to zip. The key
+# is returned. Later on, when the key is passed to [unzip], the original
+# string is retrieved from the ::strings array and returned.
+#
+set next_x 0
+proc zip {x} {
+ incr ::next_x
+ set ::strings($::next_x) $x
+ return $::next_x
+}
+proc unzip {x} {
+  return $::strings($x)
+}
+
+foreach {tn zip unzip} {
+  1   zip   unzip
+  2   {z.i.p!!}    {un "zip"}
+} {
+
+  set next_x 0
+  catch {db close}
+  forcedelete test.db
+  sqlite3 db test.db
+  db func $zip zip
+  db func $unzip unzip
+  
+  # Create a table that uses zip/unzip. Check that content inserted into
+  # the table can be read back (using a full-scan query). Check that the
+  # underlying %_content table contains the compressed (integer) values.
+  #
+  do_execsql_test 1.$tn.0 "
+    CREATE VIRTUAL TABLE t1 USING fts4(
+      a, b, 
+      compress='$zip', uncompress='$unzip'
+    );
+  "
+  do_execsql_test 1.$tn.1 {
+    INSERT INTO t1 VALUES('one two three', 'two four six');
+    SELECT a, b FROM t1;
+  } {{one two three} {two four six}}
+  do_execsql_test 1.$tn.2 {
+    SELECT c0a, c1b FROM t1_content;
+  } {1 2}
+  
+  # Insert another row and check that it can be read back. Also that the
+  # %_content table still contains all compressed content. This time, try
+  # full-text index and by-docid queries too.
+  #
+  do_execsql_test 1.$tn.3 {
+    INSERT INTO t1 VALUES('three six nine', 'four eight twelve');
+    SELECT a, b FROM t1;
+  } {{one two three} {two four six} {three six nine} {four eight twelve}}
+  do_execsql_test 1.$tn.4 {
+    SELECT c0a, c1b FROM t1_content;
+  } {1 2 3 4}
+  
+  do_execsql_test 1.$tn.5 {
+    SELECT a, b FROM t1 WHERE docid = 2
+  } {{three six nine} {four eight twelve}}
+  do_execsql_test 1.$tn.6 {
+    SELECT a, b FROM t1 WHERE t1 MATCH 'two'
+  } {{one two three} {two four six}}
+  
+  # Delete a row and check that the full-text index is correctly updated.
+  # Inspect the full-text index using an fts4aux table.
+  #
+  do_execsql_test 1.$tn.7 {
+    CREATE VIRTUAL TABLE terms USING fts4aux(t1);
+    SELECT term, documents, occurrences FROM terms WHERE col = '*';
+  } {
+    eight 1 1    four 2 2    nine 1 1    one 1 1 
+    six 2 2      three 2 2   twelve 1 1  two 1 2
+  }
+  do_execsql_test 1.$tn.8 {
+    DELETE FROM t1 WHERE docid = 1;
+    SELECT term, documents, occurrences FROM terms WHERE col = '*';
+  } {
+    eight 1 1   four 1 1    nine 1 1 
+    six 1 1     three 1 1   twelve 1 1
+  }
+  do_execsql_test 1.$tn.9 { SELECT c0a, c1b FROM t1_content } {3 4}
+}
+
+# Test that is an error to specify just one of compress and uncompress.
+#
+do_catchsql_test 2.1 {
+  CREATE VIRTUAL TABLE t2 USING fts4(x, compress=zip)
+} {1 {missing uncompress parameter in fts4 constructor}}
+do_catchsql_test 2.2 {
+  CREATE VIRTUAL TABLE t2 USING fts4(x, uncompress=unzip)
+} {1 {missing compress parameter in fts4 constructor}}
+
+finish_test
diff --git a/test/fts3conf.test b/test/fts3conf.test
new file mode 100644
index 0000000000000000000000000000000000000000..cd48290195d8d517a9e723d2203763e51d2e7e89
--- /dev/null
+++ b/test/fts3conf.test
@@ -0,0 +1,256 @@
+# 2011 April 25
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS3 module.
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix fts3conf
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+
+proc fts3_integrity {tn db tbl} {
+
+  if {[sqlite3_get_autocommit $db]==0} {
+    error "fts3_integrity does not work with an open transaction"
+  }
+
+  set sql [db one {SELECT sql FROM sqlite_master WHERE name = $tbl}]
+  regexp -nocase {[^(]* using (.*)} $sql -> tail
+  set cols [list]
+  $db eval "PRAGMA table_info($tbl)" {
+    lappend cols $name
+  }
+  set cols [join [concat docid $cols] ,]
+
+  $db eval [subst {
+    CREATE VIRTUAL TABLE fts3check USING fts4term($tbl);
+    CREATE VIRTUAL TABLE temp.fts3check2 USING $tail;
+    INSERT INTO temp.fts3check2($cols) SELECT docid, * FROM $tbl;
+    CREATE VIRTUAL TABLE temp.fts3check3 USING fts4term(fts3check2);
+  }]
+
+  set m1 [$db one {SELECT md5sum(term, docid, col, pos) FROM fts3check}]
+  set m2 [$db one {SELECT md5sum(term, docid, col, pos) FROM fts3check3}]
+
+  $db eval {
+    DROP TABLE fts3check;
+    DROP TABLE temp.fts3check2;
+    DROP TABLE temp.fts3check3;
+  }
+  
+  uplevel [list do_test $tn [list set {} $m1] $m2]
+}
+
+do_execsql_test 1.0.1 {
+  CREATE VIRTUAL TABLE t1 USING fts3(x);
+  INSERT INTO t1(rowid, x) VALUES(1, 'a b c d');
+  INSERT INTO t1(rowid, x) VALUES(2, 'e f g h');
+
+  CREATE TABLE source(a, b);
+  INSERT INTO source VALUES(4, 'z');
+  INSERT INTO source VALUES(2, 'y');
+}
+db_save_and_close
+
+set T1 "INTO t1(rowid, x) VALUES(1, 'x')"
+set T2 "INTO t1(rowid, x) SELECT * FROM source"
+
+set T3 "t1 SET docid = 2 WHERE docid = 1"
+set T4 "t1 SET docid = CASE WHEN docid = 1 THEN 4 ELSE 3 END WHERE docid <=2"
+
+foreach {tn sql uses constraint data} [subst {
+  1    "INSERT OR ROLLBACK $T1"   0 1 {{a b c d} {e f g h}}
+  2    "INSERT OR ABORT    $T1"   0 1 {{a b c d} {e f g h} {i j k l}}
+  3    "INSERT OR FAIL     $T1"   0 1 {{a b c d} {e f g h} {i j k l}}
+  4    "INSERT OR IGNORE   $T1"   0 0 {{a b c d} {e f g h} {i j k l}}
+  5    "INSERT OR REPLACE  $T1"   0 0 {x {e f g h} {i j k l}}
+
+  6    "INSERT OR ROLLBACK $T2"   1 1 {{a b c d} {e f g h}}
+  7    "INSERT OR ABORT    $T2"   1 1 {{a b c d} {e f g h} {i j k l}}
+  8    "INSERT OR FAIL     $T2"   1 1 {{a b c d} {e f g h} {i j k l} z}
+  9    "INSERT OR IGNORE   $T2"   1 0 {{a b c d} {e f g h} {i j k l} z}
+  10   "INSERT OR REPLACE  $T2"   1 0 {{a b c d} y {i j k l} z}
+
+  11   "UPDATE OR ROLLBACK $T3"   0 1 {{a b c d} {e f g h}}
+  12   "UPDATE OR ABORT    $T3"   0 1 {{a b c d} {e f g h} {i j k l}}
+  13   "UPDATE OR FAIL     $T3"   0 1 {{a b c d} {e f g h} {i j k l}}
+  14   "UPDATE OR IGNORE   $T3"   0 0 {{a b c d} {e f g h} {i j k l}}
+  15   "UPDATE OR REPLACE  $T3"   0 0 {{a b c d} {i j k l}}
+
+  16   "UPDATE OR ROLLBACK $T4"   1 1 {{a b c d} {e f g h}}
+  17   "UPDATE OR ABORT    $T4"   1 1 {{a b c d} {e f g h} {i j k l}}
+  18   "UPDATE OR FAIL     $T4"   1 1 {{e f g h} {i j k l} {a b c d}}
+  19   "UPDATE OR IGNORE   $T4"   1 0 {{e f g h} {i j k l} {a b c d}}
+  20   "UPDATE OR REPLACE  $T4"   1 0 {{e f g h} {a b c d}}
+}] {
+  db_restore_and_reopen
+  execsql { 
+    BEGIN;
+      INSERT INTO t1(rowid, x) VALUES(3, 'i j k l');
+  }
+  set R(0) {0 {}}
+  set R(1) {1 {constraint failed}}
+  do_catchsql_test 1.$tn.1 $sql $R($constraint)
+  do_catchsql_test 1.$tn.2 { SELECT * FROM t1 } [list 0 $data]
+  catchsql COMMIT
+
+  fts3_integrity 1.$tn.3 db t1
+
+  do_test 1.$tn.4 [list sql_uses_stmt db $sql] $uses
+}
+
+do_execsql_test 2.1.1 {
+  DELETE FROM t1;
+  BEGIN;
+    INSERT INTO t1 VALUES('a b c');
+    SAVEPOINT a;
+      INSERT INTO t1 VALUES('x y z');
+    ROLLBACK TO a;
+  COMMIT;
+}
+fts3_integrity 2.1.2 db t1
+
+do_catchsql_test 2.2.1 {
+  DELETE FROM t1;
+  BEGIN;
+    INSERT INTO t1(docid, x) VALUES(0, 'a b c');
+    INSERT INTO t1(docid, x) VALUES(1, 'a b c');
+    REPLACE INTO t1(docid, x) VALUES('zero', 'd e f');
+} {1 {datatype mismatch}}
+do_execsql_test 2.2.2 { COMMIT }
+do_execsql_test 2.2.3 { SELECT * FROM t1 } {{a b c} {a b c}}
+fts3_integrity 2.2.4 db t1
+
+if {$tcl_platform(byteOrder)=="littleEndian"} {
+  do_execsql_test 3.1 {
+    CREATE VIRTUAL TABLE t3 USING fts4;
+    REPLACE INTO t3(docid, content) VALUES (1, 'one two');
+    SELECT quote(matchinfo(t3, 'na')) FROM t3 WHERE t3 MATCH 'one'
+  } {X'0100000002000000'}
+  
+  do_execsql_test 3.2 {
+    REPLACE INTO t3(docid, content) VALUES (2, 'one two three four');
+    SELECT quote(matchinfo(t3, 'na')) FROM t3 WHERE t3 MATCH 'four'
+  } {X'0200000003000000'}
+  
+  do_execsql_test 3.3 {
+    REPLACE INTO t3(docid, content) VALUES (1, 'one two three four five six');
+    SELECT quote(matchinfo(t3, 'na')) FROM t3 WHERE t3 MATCH 'six'
+  } {X'0200000005000000'}
+  
+  do_execsql_test 3.4 {
+    UPDATE OR REPLACE t3 SET docid = 2 WHERE docid=1;
+    SELECT quote(matchinfo(t3, 'na')) FROM t3 WHERE t3 MATCH 'six'
+  } {X'0100000006000000'}
+  
+  do_execsql_test 3.5 {
+    UPDATE OR REPLACE t3 SET docid = 3 WHERE docid=2;
+    SELECT quote(matchinfo(t3, 'na')) FROM t3 WHERE t3 MATCH 'six'
+  } {X'0100000006000000'}
+  
+  do_execsql_test 3.6 {
+    REPLACE INTO t3(docid, content) VALUES (3, 'one two');
+    SELECT quote(matchinfo(t3, 'na')) FROM t3 WHERE t3 MATCH 'one'
+  } {X'0100000002000000'}
+  
+  do_execsql_test 3.7 {
+    REPLACE INTO t3(docid, content) VALUES(NULL,'one two three four');
+    REPLACE INTO t3(docid, content) VALUES(NULL,'one two three four five six');
+    SELECT docid FROM t3;
+  } {3 4 5}
+  
+  do_execsql_test 3.8 {
+    UPDATE OR REPLACE t3 SET docid = 5, content='three four' WHERE docid = 4;
+    SELECT quote(matchinfo(t3, 'na')) FROM t3 WHERE t3 MATCH 'one'
+  } {X'0200000002000000'}
+}
+
+#-------------------------------------------------------------------------
+# Test that the xSavepoint is invoked correctly if the first write 
+# operation within a transaction is to a virtual table. 
+# 
+do_catchsql_test 4.1.1 {
+  CREATE VIRTUAL TABLE t0 USING fts4;
+  BEGIN;
+    INSERT INTO t0(rowid, content) SELECT
+      1, 'abc' UNION ALL SELECT
+      2, 'def' UNION ALL SELECT
+      1, 'ghi';
+} {1 {constraint failed}}
+do_execsql_test 4.1.2 {
+  COMMIT;
+}
+do_execsql_test 4.1.3 {
+  SELECT * FROM t0 WHERE t0 MATCH 'abc';
+  INSERT INTO t0(t0) VALUES('integrity-check');
+  PRAGMA integrity_check;
+} {ok}
+
+do_execsql_test 4.2.1 {
+  CREATE VIRTUAL TABLE t01 USING fts4;
+  BEGIN;
+    SAVEPOINT abc;
+      INSERT INTO t01 VALUES('a b c');
+    ROLLBACK TO abc;
+  COMMIT;
+}
+do_execsql_test 4.2.2 {
+  SELECT * FROM t01 WHERE t01 MATCH 'b';
+  INSERT INTO t01(t01) VALUES('integrity-check');
+  PRAGMA integrity_check;
+} {ok}
+
+do_execsql_test 4.3.1 {
+  CREATE VIRTUAL TABLE t02 USING fts4;
+  INSERT INTO t01 VALUES('1 1 1');
+  INSERT INTO t02 VALUES('2 2 2');
+  BEGIN;
+    SAVEPOINT abc;
+      INSERT INTO t01 VALUES('a b c');
+      INSERT INTO t02 VALUES('a b c');
+    ROLLBACK TO abc;
+  COMMIT;
+}
+do_execsql_test 4.3.2 {
+  SELECT * FROM t01 WHERE t01 MATCH 'b';
+  INSERT INTO t01(t01) VALUES('integrity-check');
+} {}
+
+do_execsql_test 4.4.1 {
+  CREATE TABLE A(ID INTEGER PRIMARY KEY, AnotherID INTEGER, Notes TEXT);
+  CREATE VIRTUAL TABLE AFTS USING FTS4 (Notes);
+  CREATE TRIGGER A_DeleteTrigger AFTER DELETE ON A FOR EACH ROW BEGIN 
+    DELETE FROM AFTS WHERE rowid=OLD.ID; 
+  END;
+  CREATE TABLE B(ID INTEGER PRIMARY KEY,Notes TEXT);
+  CREATE VIRTUAL TABLE BFTS USING FTS3 (Notes);
+  CREATE TRIGGER B_DeleteTrigger AFTER DELETE ON B FOR EACH ROW BEGIN 
+    DELETE FROM BFTS WHERE rowid=OLD.ID; 
+  END;
+}
+		
+do_execsql_test 4.4.2 {
+  BEGIN TRANSACTION;
+    DELETE FROM A WHERE AnotherID=1;
+    DELETE FROM B WHERE ID=1;
+  COMMIT;
+}
+		
+
+
+finish_test
diff --git a/test/fts3corrupt.test b/test/fts3corrupt.test
new file mode 100644
index 0000000000000000000000000000000000000000..69d5030be91eedd4ff240f002049d8dbffa0ef05
--- /dev/null
+++ b/test/fts3corrupt.test
@@ -0,0 +1,234 @@
+# 2010 October 27
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# Test that the FTS3 extension does not crash when it encounters a
+# corrupt data structure on disk.
+#
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If SQLITE_ENABLE_FTS3 is not defined, omit this file.
+ifcapable !fts3 { finish_test ; return }
+
+set ::testprefix fts3corrupt
+
+
+# Test that a doclist with a length field that indicates that the doclist
+# extends past the end of the node on which it resides is correctly identified
+# as database corruption.
+#
+sqlite3_db_config db DEFENSIVE 0
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts3;
+  INSERT INTO t1 VALUES('hello');
+} {}
+do_test fts3corrupt-1.1 {
+  set blob [db one {SELECT root from t1_segdir}]
+  set blob [binary format a7ca* $blob 24 [string range $blob 8 end]]
+  execsql { UPDATE t1_segdir SET root = $blob }
+} {}
+do_test fts3corrupt-1.2 {
+  foreach w {a b c d e f g h i j k l m n o} {
+    execsql { INSERT INTO t1 VALUES($w) }
+  }
+} {}
+do_catchsql_test 1.3 {
+  INSERT INTO t1 VALUES('world');
+} {1 {database disk image is malformed}}
+do_test 1.3.1 { sqlite3_extended_errcode db } SQLITE_CORRUPT_VTAB
+do_execsql_test 1.4 { 
+  DROP TABLE t1;
+} 
+
+# This block of tests checks that corruption is correctly detected if the
+# length field of a term on a leaf node indicates that the term extends past
+# the end of the node on which it resides. There are two cases:
+#
+#   1. The first term on the node.
+#   2. The second or subsequent term on the node (prefix compressed term).
+#
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE t1 USING fts3;
+  BEGIN;
+    INSERT INTO t1 VALUES('hello');
+    INSERT INTO t1 VALUES('hello');
+    INSERT INTO t1 VALUES('hello');
+    INSERT INTO t1 VALUES('hello');
+    INSERT INTO t1 VALUES('hello');
+  COMMIT;
+} {}
+do_test fts3corrupt-2.1 {
+  set blob [db one {SELECT root from t1_segdir}]
+  set blob [binary format a*a* "\x00\x7F" [string range $blob 2 end]]
+  execsql { UPDATE t1_segdir SET root = $blob }
+} {}
+do_catchsql_test 2.2 {
+  SELECT rowid FROM t1 WHERE t1 MATCH 'hello'
+} {1 {database disk image is malformed}}
+do_test 2.2.1 { sqlite3_extended_errcode db } SQLITE_CORRUPT_VTAB
+
+do_execsql_test 3.0 {
+  DROP TABLE t1;
+  CREATE VIRTUAL TABLE t1 USING fts3;
+  BEGIN;
+    INSERT INTO t1 VALUES('hello');
+    INSERT INTO t1 VALUES('world');
+  COMMIT;
+} {}
+do_test fts3corrupt-3.1 {
+  set blob [db one {SELECT quote(root) from t1_segdir}]
+  set blob [binary format a11a*a* $blob "\x7F" [string range $blob 12 end]]
+  execsql { UPDATE t1_segdir SET root = $blob }
+} {}
+do_catchsql_test 3.2 {
+  SELECT rowid FROM t1 WHERE t1 MATCH 'world'
+} {1 {database disk image is malformed}}
+do_test 3.2.1 { sqlite3_extended_errcode db } SQLITE_CORRUPT_VTAB
+
+
+do_execsql_test 4.0 {
+  DROP TABLE t1;
+  CREATE VIRTUAL TABLE t1 USING fts3;
+  INSERT INTO t1(t1) VALUES('nodesize=24');
+}
+do_test fts3corrupt-4.1 {
+  execsql BEGIN
+  foreach s {
+     "amxtvoo adqwroyhz auq aithtir avniqnuynvf axp ahibayfynig agbicpm"
+     "ajdtebs anteaxr aieynenwmd awpl alo akxcrwow aoxftge aoqvgul"
+     "amcfvdr auz apu aebelm ahuxyz aqc asyafdb agulvhvqu"
+     "apepwfyz azkhdvkw aenyelxzbk aslnitbyet aycdsdcpgr aqzzdbc agfi axnypydou"
+     "aaqrzzcm apcxdxo atumltzj aevvivo aodknoft aqoyytoz alobx apldt"
+  } {
+    execsql { INSERT INTO t1 VALUES($s) }
+  }
+  execsql COMMIT
+} {}
+
+do_catchsql_test 4.2 {
+  UPDATE t1_segdir SET root = X'FFFFFFFFFFFFFFFF';
+  SELECT rowid FROM t1 WHERE t1 MATCH 'world';
+} {1 {database disk image is malformed}}
+do_test 4.2.1 { sqlite3_extended_errcode db } SQLITE_CORRUPT_VTAB
+
+set    blob [binary format cca*cca*cca*cca*cca*cca*cca*cca*cca*cca*a* \
+  22 120 [string repeat a 120]  \
+  22 120 [string repeat b 120]  \
+  22 120 [string repeat c 120]  \
+  22 120 [string repeat d 120]  \
+  22 120 [string repeat e 120]  \
+  22 120 [string repeat f 120]  \
+  22 120 [string repeat g 120]  \
+  22 120 [string repeat h 120]  \
+  22 120 [string repeat i 120]  \
+  22 120 [string repeat j 120]  \
+  "\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF"
+]
+
+do_catchsql_test 4.3 {
+  UPDATE t1_segdir SET root = $blob;
+  SELECT rowid FROM t1 WHERE t1 MATCH 'world';
+} {1 {database disk image is malformed}}
+do_test 4.3.1 { sqlite3_extended_errcode db } SQLITE_CORRUPT_VTAB
+
+# Test a special kind of corruption, where the %_stat table contains
+# an invalid entry. At one point this could lead to a division-by-zero
+# error in fts4.
+#
+do_execsql_test 5.0 {
+  DROP TABLE t1;
+  CREATE VIRTUAL TABLE t1 USING fts4;
+}
+do_test 5.1 {
+  db func nn nn
+  execsql BEGIN
+  execsql { INSERT INTO t1 VALUES('one') }
+  execsql { INSERT INTO t1 VALUES('two') }
+  execsql { INSERT INTO t1 VALUES('three') }
+  execsql { INSERT INTO t1 VALUES('four') }
+  execsql COMMIT
+} {}
+do_catchsql_test 5.2 {
+  UPDATE t1_stat SET value = X'0000';
+  SELECT matchinfo(t1, 'nxa') FROM t1 WHERE t1 MATCH 't*';
+} {1 {database disk image is malformed}}
+do_test 5.2.1 { sqlite3_extended_errcode db } SQLITE_CORRUPT_VTAB
+do_catchsql_test 5.3 {
+  UPDATE t1_stat SET value = NULL;
+  SELECT matchinfo(t1, 'nxa') FROM t1 WHERE t1 MATCH 't*';
+} {1 {database disk image is malformed}}
+do_test 5.3.1 { sqlite3_extended_errcode db } SQLITE_CORRUPT_VTAB
+
+# 2019-11-18 https://bugs.chromium.org/p/chromium/issues/detail?id=1025467
+# bug1
+db close
+sqlite3 db :memory:
+do_catchsql_test 6.10 {
+  CREATE VIRTUAL TABLE f using fts3(a,b);
+  CREATE TABLE f_stat(id INTEGER PRIMARY KEY, value BLOB);
+  INSERT INTO f_segdir VALUES (2000, 0,0,0, '16', '');
+  INSERT INTO f_segdir VALUES (1999, 0,0,0, '0 18',
+                               x'000131030102000103323334050101010200');
+  INSERT INTO f_segments (blockid) values (16);
+  INSERT INTO f_segments values (0, x'');
+  INSERT INTO f_stat VALUES (1,x'cf0f01');
+  INSERT INTO f(f) VALUES ('merge=1');
+} {1 {database disk image is malformed}}
+
+# 2020-03-02 https://bugs.chromium.org/p/chromium/issues/detail?id=1057441
+# The ticket complains of use of an uninitialized value. That part is harmless.
+# The only reason to fix this is the failure to detect a subtly corrupt
+# inverted index.
+#
+reset_db
+do_catchsql_test 7.10 {
+  CREATE VIRTUAL TABLE f USING fts3(a,b);
+  INSERT INTO f_segdir VALUES (0,0,1,0,'0 0',x'01010101020101');
+  SELECT  matchinfo( f , 'pcx')  FROM f WHERE b MATCH x'c533';
+} {1 {database disk image is malformed}}
+
+reset_db
+sqlite3_fts3_may_be_corrupt 1
+do_execsql_test 8.1 {
+  CREATE VIRTUAL TABLE f USING fts3(a);
+  INSERT INTO f(f) VALUES('nodesize=24');
+  BEGIN;
+    INSERT INTO f VALUES('abcdefghijklmnopqrstuvwxyz0123456789');
+    INSERT INTO f VALUES('abcdefghijklmnopqrstuvwxyz0123456789');
+    INSERT INTO f VALUES('abcdefghijklmnopqrstuvwxyz0123456789');
+
+    INSERT INTO f VALUES('abcdefghijklmnopqrstuvwxyz012345678X');
+    INSERT INTO f VALUES('abcdefghijklmnopqrstuvwxyz012345678X');
+    INSERT INTO f VALUES('abcdefghijklmnopqrstuvwxyz012345678X');
+  COMMIT;
+  BEGIN;
+    INSERT INTO f VALUES('abcdefghijklmnopqrstuvwxyz0123456789');
+    INSERT INTO f VALUES('abcdefghijklmnopqrstuvwxyz0123456789');
+    INSERT INTO f VALUES('abcdefghijklmnopqrstuvwxyz0123456789');
+
+    INSERT INTO f VALUES('abcdefghijklmnopqrstuvwxyz012345678X');
+    INSERT INTO f VALUES('abcdefghijklmnopqrstuvwxyz012345678X');
+    INSERT INTO f VALUES('abcdefghijklmnopqrstuvwxyz012345678X');
+  COMMIT;
+
+  SELECT count(*) FROM f_segments;
+} {4}
+
+do_execsql_test 8.2 {
+  UPDATE f_segments SET block = (
+    SELECT block FROM f_segments WHERE blockid=1
+  ) WHERE blockid=2
+}
+
+do_catchsql_test 8.3 {
+  INSERT INTO f(f) VALUES('merge=2,2');
+} {1 {database disk image is malformed}}
+sqlite3_fts3_may_be_corrupt 0
+
+finish_test
diff --git a/test/fts3corrupt2.test b/test/fts3corrupt2.test
new file mode 100644
index 0000000000000000000000000000000000000000..58643534f1a8df20df79acf916734c10be13cf8b
--- /dev/null
+++ b/test/fts3corrupt2.test
@@ -0,0 +1,111 @@
+# 2010 October 30
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# Test that the FTS3 extension does not crash when it encounters a
+# corrupt data structure on disk.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If SQLITE_ENABLE_FTS3 is not defined, omit this file.
+ifcapable !fts3 { finish_test ; return }
+
+set ::testprefix fts3corrupt2
+sqlite3_fts3_may_be_corrupt 1
+
+set data [list]
+lappend data {*}{
+   "amxtvoo adqwroyhz auq aithtir avniqnuynvf axp ahibayfynig agbicpm"
+   "ajdtebs anteaxr aieynenwmd awpl alo akxcrwow aoxftge aoqvgul"
+   "amcfvdr auz apu aebelm ahuxyz aqc asyafdb agulvhvqu"
+   "apepwfyz azkhdvkw aenyelxzbk aslnitbyet aycdsdcpgr aqzzdbc agfi axnypydou"
+   "aaqrzzcm apcxdxo atumltzj aevvivo aodknoft aqoyytoz alobx apldt"
+   "adjllxlhnmj aiuhvuj adwppceuht atvj azrsam ahkjqdhny audlqxr aotgcd"
+   "aira azflsceos awj auzbobfkc awmezplr aeh awec ahndxlmv"
+   "aydwnied alk auoap agihyqeix aymqxzajnl aydwnied aojkarx agbo"
+   "ahajsmcl anvx amdhjm aoptsj agugzjjm apkevm acnj acjg"
+   "amwtkw aogttbykvt aubwrfqnbjf ajow agsj aerkqzjdqst anenlvbalkn arfajzzgckx"
+   "adqqqofkmz amjpavjuhw aqgehgnb awvvxlbtqzn agstqko akmkzehyh atagzey agwja"
+   "amag ahe autkllywhr avnk atmt akn anvdh aixfrv"
+   "aqdyerbws avefykly awl azaduojgzo anxfsmw axpt abgbvk ati"
+   "attyqkwz aiweypiczul afy asitaqbczhh aitxisizpv auhviq aibql ajfqc"
+   "aylzprtmta aiuemihqrpi awluvgsw ampbuy axlifpzfqr aems aoaxwads apianfn"
+   "aodrkijelq acdb aaserrdxm aqyasgofqu aevvivo afi apmwu aeoqysl"
+   "amqnk ankaotm ayfy ajcupeeoc advcbukan aucahlwnyk adbfyo azqjpeant"
+   "afczpp asqrs ahslvda akhlf aiqgdp atyd aznuglxqbrg awirndrh"
+   "aqhiajp amxeazb asxuehg akod axvolvsp agcz asmovmohy acmqa"
+   "avvomv aafms ashuaec arevx audtq alrwqhjvao avgsgpg ajbrctpsel"
+   "atxoirr ayopboobqdu ajunntua arh aernimxid aipljda aglo aefk"
+   "aonxf acmnnkna abgviaswe aulvcbv axp apemgakpzo aibql acioaid"
+   "axo alrwqhjvao ayqounftdzl azmoakdyh apajze ajk artvy apxiamy"
+   "ayjafsraz addjj agsj asejtziqws acatvhegu aoxdjqblsvv aekdmmbs aaobe"
+   "abjjvzubkwt alczv ati awz auyxgcxeb aymjoym anqoukprtyt atwfhpmbooh"
+   "ajfqz aethlgir aclcx aowlyvetby aproqm afjlqtkv anebfy akzrcpfrrvw"
+   "aoledfotm aiwlfm aeejlaej anz abgbvk aktfn aayoh anpywgdvgz"
+   "acvmldguld asdvz aqb aeomsyzyu aggylhprbdz asrfkwz auipybpsn agsnszzfb"
+}
+
+sqlite3_db_config db DEFENSIVE 0
+do_test fts3corrupt2-1.0 {
+  execsql BEGIN
+  execsql { CREATE VIRTUAL TABLE t2 USING FTS3(a, b); }
+  execsql { INSERT INTO t2(t2) VALUES('nodesize=32') }
+  foreach d $data {
+    execsql { INSERT INTO t2 VALUES($d, $d) }
+  }
+  execsql COMMIT
+  execsql { SELECT count(*) FROM t2_segments }
+} {163}
+
+proc set_byte {blob byte val} {
+  binary format a*ca*                         \
+      [string range $blob 0 [expr $byte-1]]   \
+      $val                                    \
+      [string range $blob [expr $byte+1] end] \
+}
+
+set tn 0
+set c 256
+foreach {rowid sz blob} [
+  db eval {SELECT rowid, length(block), block FROM t2_segments}
+] {
+  incr tn
+  set c [expr (($c+255)%256)]
+  for {set i 0} {$i < $sz} {incr i} {
+    set b2 [set_byte $blob $i $c]
+    execsql { UPDATE t2_segments SET block = $b2 WHERE rowid = $rowid }
+    do_test fts3corrupt2-1.$tn.$i {
+      catchsql { SELECT * FROM t2 WHERE t2 MATCH 'a*' }
+      set {} {}
+    } {}
+  }
+  execsql { UPDATE t2_segments SET block = $blob WHERE rowid = $rowid }
+}
+
+foreach c {50 100 150 200 250} {
+  foreach {rowid sz blob} [
+    db eval {SELECT rowid, length(root), root FROM t2_segdir}
+  ] {
+    incr tn
+    for {set i 0} {$i < $sz} {incr i} {
+      set b2 [set_byte $blob $i $c]
+      execsql { UPDATE t2_segdir SET root = $b2 WHERE rowid = $rowid }
+      do_test fts3corrupt2-2.$c.$tn.$i {
+        catchsql { SELECT * FROM t2 WHERE t2 MATCH 'a*' }
+        set {} {}
+      } {}
+    }
+    execsql { UPDATE t2_segdir SET root = $blob WHERE rowid = $rowid }
+  }
+}
+
+
+
+
+
+finish_test
diff --git a/test/fts3corrupt3.test b/test/fts3corrupt3.test
new file mode 100644
index 0000000000000000000000000000000000000000..eae13f222b1bff209382d3ec45d4b1ebd6692d8f
--- /dev/null
+++ b/test/fts3corrupt3.test
@@ -0,0 +1,66 @@
+# 2010 October 27
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# Test that the FTS3 extension does not crash when it encounters a
+# corrupt data structure on disk.
+#
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If SQLITE_ENABLE_FTS3 is not defined, omit this file.
+ifcapable !fts3 { finish_test ; return }
+
+set ::testprefix fts3corrupt3
+
+#-------------------------------------------------------------------------
+# Test that fts3 does not choke on an oversized varint.
+#
+do_execsql_test 1.0 {
+  PRAGMA page_size = 512;
+  CREATE VIRTUAL TABLE t1 USING fts3;
+  BEGIN;
+    INSERT INTO t1 VALUES('one');
+    INSERT INTO t1 VALUES('one');
+    INSERT INTO t1 VALUES('one');
+  COMMIT;
+}
+do_execsql_test 1.1 {
+  SELECT quote(root) from t1_segdir;
+} {X'00036F6E6509010200010200010200'}
+sqlite3_db_config db DEFENSIVE 0
+do_execsql_test 1.2 {
+  UPDATE t1_segdir SET root = X'00036F6E650EFFFFFFFFFFFFFFFFFFFFFFFF0200';
+}
+do_catchsql_test 1.3 {
+  SELECT rowid FROM t1 WHERE t1 MATCH 'one'
+} {0 -1}
+
+#-------------------------------------------------------------------------
+# Interior node with the prefix or suffix count of an entry set to a
+# negative value.
+#
+set doc1 [string repeat "x " 600]
+set doc2 [string repeat "y " 600]
+set doc3 [string repeat "z " 600]
+
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE t2 USING fts3;
+  BEGIN;
+    INSERT INTO t2 VALUES($doc1);
+    INSERT INTO t2 VALUES($doc2);
+    INSERT INTO t2 VALUES($doc3);
+  COMMIT;
+}
+do_execsql_test 2.1 {
+  SELECT quote(root) from t2_segdir;
+} {X'0101017900017A'}
+
+
+
+finish_test
diff --git a/test/fts3corrupt4.test b/test/fts3corrupt4.test
new file mode 100644
index 0000000000000000000000000000000000000000..01effa085016fa3dd97fcff2202f8dd90db7e2ac
--- /dev/null
+++ b/test/fts3corrupt4.test
@@ -0,0 +1,7690 @@
+# 2006 September 9
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS3 module.
+#
+# $Id: fts3aa.test,v 1.1 2007/08/20 17:38:42 shess Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/fts3_common.tcl
+set testprefix fts3corrupt4
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+sqlite3_fts3_may_be_corrupt 1
+database_may_be_corrupt
+extra_schema_checks 0
+
+do_execsql_test 1.0 {
+  BEGIN;
+    CREATE VIRTUAL TABLE ft USING fts3;
+    INSERT INTO ft VALUES('aback');
+    INSERT INTO ft VALUES('abaft');
+    INSERT INTO ft VALUES('abandon');
+  COMMIT;
+}
+
+proc blob {a} { binary decode hex $a }
+db func blob blob
+
+do_execsql_test 1.1 {
+  SELECT quote(root) FROM ft_segdir;
+} {X'0005616261636B03010200030266740302020003046E646F6E03030200'}
+
+sqlite3_db_config db DEFENSIVE 0
+do_execsql_test 1.2 {
+  UPDATE ft_segdir SET root = blob(
+    '0005616261636B03010200 FFFFFFFF0702 66740302020003046E646F6E03030200'
+  );
+}
+
+do_catchsql_test 1.3 {
+  SELECT * FROM ft WHERE ft MATCH 'abandon';
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 2.0.0 {
+  CREATE VIRTUAL TABLE ft USING fts3;
+  INSERT INTO ft(ft) VALUES('nodesize=32');
+}
+do_test 2.0.1 {
+  for {set i 0} {$i < 12} {incr i} {
+    execsql {
+      BEGIN;
+        INSERT INTO ft VALUES('abc' || $i);
+        INSERT INTO ft VALUES('abc' || $i || 'x' );
+        INSERT INTO ft VALUES('abc' || $i || 'xx' );
+      COMMIT
+    }
+  }
+  execsql {
+    SELECT count(*) FROM ft_segdir;
+    SELECT count(*) FROM ft_segments;
+  }
+} {12 0}
+
+do_execsql_test 2.1 {
+  INSERT INTO ft(ft) VALUES('merge=1,4');
+  SELECT count(*) FROM ft_segdir;
+  SELECT count(*) FROM ft_segments;
+} {12 3}
+
+do_execsql_test 2.2 {
+  SELECT quote(block) FROM ft_segments WHERE blockid=2
+} {X'00056162633130031F0200'}
+
+db func blob blob
+sqlite3_db_config db DEFENSIVE 0
+do_execsql_test 2.3.1 {
+  UPDATE ft_segments SET block = 
+    blob('00056162633130031F0200 FFFFFFFF07FF55 66740302020003046E646F6E03030200')
+    WHERE blockid=2;
+} {}
+do_catchsql_test 2.3.2 {
+  INSERT INTO ft(ft) VALUES('merge=1,4');
+} {1 {database disk image is malformed}}
+
+do_execsql_test 2.4.1 {
+  UPDATE ft_segments SET block = 
+    blob('00056162633130031F0200 02FFFFFFFF07 66740302020003046E646F6E03030200')
+    WHERE blockid=2;
+} {}
+do_catchsql_test 2.4.2 {
+  INSERT INTO ft(ft) VALUES('merge=1,4');
+} {1 {database disk image is malformed}}
+
+do_execsql_test 2.5.1 {
+  UPDATE ft_segments SET block = 
+    blob('00056162633130031F0200 0202 6674 FFFFFF070302020003046E646F6E030200')
+    WHERE blockid=2;
+} {}
+do_catchsql_test 2.5.2 {
+  INSERT INTO ft(ft) VALUES('merge=1,4');
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 3.0.0 {
+  CREATE VIRTUAL TABLE ft USING fts3;
+  INSERT INTO ft(ft) VALUES('nodesize=32');
+}
+do_test 3.0.1 {
+  execsql BEGIN
+  for {set i 0} {$i < 20} {incr i} {
+    execsql { INSERT INTO ft VALUES('abc' || $i) }
+  }
+  execsql {
+    COMMIT;
+    SELECT count(*) FROM ft_segdir;
+    SELECT count(*) FROM ft_segments;
+  }
+} {1 5}
+
+do_execsql_test 3.1 {
+  SELECT quote(root) FROM ft_segdir
+} {X'0101056162633132040136030132030136'}
+
+db func blob blob
+sqlite3_db_config db DEFENSIVE 0
+do_execsql_test 3.2 {
+  UPDATE ft_segdir 
+  SET root = blob('0101056162633132FFFFFFFF070236030132030136');
+}
+
+do_catchsql_test 3.1 {
+  SELECT * FROM ft WHERE ft MATCH 'abc20'
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE t1 USING fts3();
+  INSERT INTO t1 VALUES('one two three');
+  UPDATE t1_segdir SET start_block = 1;
+}
+
+do_catchsql_test 4.1 { 
+  SELECT * FROM t1 WHERE t1 MATCH 'one'; 
+} {1 {database disk image is malformed}}
+do_catchsql_test 4.2 { 
+  SELECT * FROM t1 WHERE t1 MATCH 'two'; 
+} {1 {database disk image is malformed}}
+do_catchsql_test 4.3 { 
+  SELECT * FROM t1 WHERE t1 MATCH 'three'; 
+} {1 {database disk image is malformed}}
+do_execsql_test 4.4 {
+  INSERT INTO t1(t1) VALUES('optimize');
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 5.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 24576 pagesize 4096 filename c15.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 04   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 04 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 0e f9 00 06 0d ec 00 0f cd 0f 69   ...............i
+|    112: 0f 01 0e 10 0e c6 0d ec 00 00 00 00 00 00 00 00   ................
+|   3552: 00 00 00 00 00 00 00 00 00 00 00 00 22 06 06 17   ................
+|   3568: 11 11 01 31 74 61 62 6c 65 74 32 74 32 06 43 52   ...1tablet2t2.CR
+|   3584: 45 41 54 45 20 54 41 42 4c 45 20 74 32 28 78 29   EATE TABLE t2(x)
+|   3600: 81 33 04 07 17 1f 1f 01 82 35 74 61 62 6c 65 74   .3.......5tablet
+|   3616: 31 5f 73 65 67 64 69 72 74 31 5f 73 65 67 64 69   1_segdirt1_segdi
+|   3632: 72 04 43 52 45 41 54 45 20 54 41 42 4c 45 20 27   r.CREATE TABLE '
+|   3648: 74 31 5f 73 65 67 64 69 72 27 28 6c 65 76 65 6c   t1_segdir'(level
+|   3664: 20 49 4e 54 45 47 45 52 2c 69 64 78 20 49 4e 54    INTEGER,idx INT
+|   3680: 45 47 45 52 2c 73 74 61 72 74 5f 62 6c 6f 63 6b   EGER,start_block
+|   3696: 20 49 4e 54 45 47 45 52 2c 6c 65 61 76 65 73 5f    INTEGER,leaves_
+|   3712: 65 6e 64 5f 62 6c 6f 63 6b 20 49 4e 54 45 47 45   end_block INTEGE
+|   3728: 52 2c 65 6e 64 5f 62 6c 6f 63 6b 20 49 4e 54 45   R,end_block INTE
+|   3744: 47 45 52 2c 72 6f 6f 74 20 42 4c 4f 42 2c 50 52   GER,root BLOB,PR
+|   3760: 49 4d 41 52 59 20 4b 45 59 28 6c 65 76 65 6c 2c   IMARY KEY(level,
+|   3776: 20 69 64 78 29 29 31 05 06 17 45 1f 01 00 69 6e    idx))1...E...in
+|   3792: 64 65 78 73 71 6c 69 74 65 5f 61 75 74 6f 69 6e   dexsqlite_autoin
+|   3808: 64 65 79 5f 74 31 5f 73 65 67 64 69 72 5f 31 74   dey_t1_segdir_1t
+|   3824: 31 5f 73 65 67 64 69 72 05 00 00 00 08 00 00 00   1_segdir........
+|   3840: 00 66 03 07 17 23 23 01 81 13 74 61 62 6c 65 74   .f...##...tablet
+|   3856: 31 5f 73 65 67 6d 65 6e 74 73 74 31 5f 73 65 67   1_segmentst1_seg
+|   3872: 6d 65 6e 74 73 03 43 52 45 41 54 45 20 54 41 42   ments.CREATE TAB
+|   3888: 4c 45 20 27 74 31 5f 73 65 67 6d 65 6e 74 73 27   LE 't1_segments'
+|   3904: 28 62 6c 6f 63 6b 69 64 20 49 4e 54 45 47 45 52   (blockid INTEGER
+|   3920: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 62 6c    PRIMARY KEY, bl
+|   3936: 6f 63 6b 20 42 4c 4f 42 29 62 02 07 17 21 21 01   ock BLOB)b...!!.
+|   3952: 81 0f 74 61 62 6c 65 74 31 5f 63 6f 6e 74 65 6e   ..tablet1_conten
+|   3968: 74 74 31 5f 63 6f 6e 74 65 6e 74 02 43 52 45 41   tt1_content.CREA
+|   3984: 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63 6f 6e   TE TABLE 't1_con
+|   4000: 74 65 6e 74 27 28 64 6f 63 69 64 20 49 4e 54 45   tent'(docid INTE
+|   4016: 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c   GER PRIMARY KEY,
+|   4032: 20 27 63 30 63 6f 6e 74 65 6e 74 27 29 31 01 06    'c0content')1..
+|   4048: 17 11 11 08 51 74 61 62 6c 65 74 31 74 31 43 52   ....Qtablet1t1CR
+|   4064: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4080: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 33   LE t1 USING fts3
+| page 2 offset 4096
+|      0: 0d 00 00 00 03 0f e0 00 0f f6 0f ec 0f e0 00 00   ................
+|   4064: 0a 03 03 00 1b 61 62 61 6e 64 6f 6e 08 02 03 00   .....abandon....
+|   4080: 17 61 62 61 66 74 08 01 03 00 17 61 62 61 63 6b   .abaft.....aback
+| page 3 offset 8192
+|      0: 0d 00 00 00 00 10 00 00 00 00 00 00 00 00 00 00   ................
+| page 4 offset 12288
+|      0: 0d 00 00 00 01 0f d6 00 0f d6 00 00 00 00 00 00   ................
+|   4048: 00 00 00 00 00 00 28 01 07 08 08 08 08 15 46 30   ......(.......F0
+|   4064: 20 32 39 00 05 61 62 61 63 6b 03 01 02 00 03 02    29..aback......
+|   4080: 66 74 03 02 02 00 03 04 6e 64 6f 60 30 30 20 00   ft......ndo`00 .
+| page 5 offset 16384
+|      0: a0 00 00 00 10 ff b0 00 ff fb 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 00 04 04 08 08 09   ................
+| page 6 offset 20480
+|      0: 0d 00 00 00 05 0f b8 00 0f f4 0f e9 0f d6 0f c7   ................
+|     16: 0f b8 27 74 31 5f 63 6f 6e 74 65 6e 74 27 28 64   ..'t1_content'(d
+|     32: 6f 63 69 64 20 49 4e 54 45 47 45 52 20 50 52 49   ocid INTEGER PRI
+|     48: 4d 41 52 59 20 4b 45 59 2c 20 27 63 30 63 6f 6e   MARY KEY, 'c0con
+|     64: 74 65 6e 74 27 29 31 01 06 17 11 11 08 51 74 61   tent')1......Qta
+|     80: 62 6c 65 74 31 74 31 43 52 45 41 54 45 20 56 49   blet1t1CREATE VI
+|     96: 52 54 55 41 4c 20 54 41 42 4c 45 20 74 31 20 55   RTUAL TABLE t1 U
+|    112: 53 49 4e 47 20 66 74 73 33 0d 00 00 00 03 0f e0   SING fts3.......
+|    128: 00 0f f6 0f ec 0f e0 00 00 00 00 00 00 00 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 0d 05 02 23 61 75 74 6f   ...........#auto
+|   4032: 6d 65 72 67 65 3d 35 0d 04 02 23 6d 65 72 67 65   merge=5...#merge
+|   4048: 3d 31 30 30 2c 38 11 03 02 2b 69 6e 74 65 67 72   =100,8...+integr
+|   4064: 69 74 79 2d 63 68 65 63 6b 09 02 02 1b 72 65 62   ity-check....reb
+|   4080: 75 69 6c 64 0a 01 02 1d 6f 70 74 69 6d 69 7a 65   uild....optimize
+| end c15.db
+}]} {}
+
+do_catchsql_test 5.1 {
+  SELECT * FROM t1 WHERE t1 MATCH 'abandon';
+} {1 {malformed database schema (sqlite_autoindey_t1_segdir_1) - orphan index}}
+
+
+#-------------------------------------------------------------------------
+reset_db
+database_may_be_corrupt
+do_execsql_test 6.0 {
+  CREATE VIRTUAL TABLE Table0 USING fts3();
+  INSERT INTO Table0_segdir VALUES(1,NULL,1,NULL,NULL,NULL);
+}
+
+do_catchsql_test 6.1 {
+  SELECT * FROM Table0 WHERE Table0 MATCH 'a';
+} {0 {}}
+
+do_catchsql_test 6.2 {
+  INSERT INTO Table0(Table0) VALUES('optimize');
+} {0 {}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 7.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 32768 pagesize 4096 filename crash-04bb6e7c811ce9.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 07   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 06 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 0e ef 00 07 0d 4d 00 0f bd 0f 5f   ..........M...._
+|    112: 0e f7 0e 06 0e bc 0d a4 0d 4d 00 00 00 00 00 00   .........M......
+|   3392: 00 00 00 00 00 00 00 00 00 00 00 00 00 55 07 07   .............U..
+|   3408: 17 1b 1b 01 81 01 74 61 62 6c 65 74 31 5f 73 74   ......tablet1_st
+|   3424: 61 74 74 31 5f 73 74 61 74 07 43 52 45 41 54 45   att1_stat.CREATE
+|   3440: 20 54 41 42 4c 45 20 27 74 31 5f 73 74 61 74 27    TABLE 't1_stat'
+|   3456: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   (id INTEGER PRIM
+|   3472: 41 52 59 20 4b 45 59 2c 20 76 61 6c 75 65 20 42   ARY KEY, value B
+|   3488: 4c 4f 42 29 60 06 07 17 21 21 01 81 0b 74 61 62   LOB)`...!!...tab
+|   3504: 6c 65 74 31 5f 64 6f 63 73 69 7a 65 74 31 5f 64   let1_docsizet1_d
+|   3520: 6f 63 73 69 7a 65 06 43 52 45 41 54 45 20 54 41   ocsize.CREATE TA
+|   3536: 42 4c 45 20 27 74 31 5f 64 6f 63 73 69 7a 65 27   BLE 't1_docsize'
+|   3552: 28 64 6f 63 69 64 20 49 4e 54 45 47 45 52 20 50   (docid INTEGER P
+|   3568: 52 49 4d 41 52 59 20 4b 45 59 2c 20 73 69 7a 65   RIMARY KEY, size
+|   3584: 20 42 4c 4f 42 29 81 33 04 07 17 1f 1f 01 82 35    BLOB).3.......5
+|   3600: 74 61 62 6c 65 74 31 5f 73 65 67 64 69 72 74 31   tablet1_segdirt1
+|   3616: 5f 73 65 67 64 69 72 04 43 52 45 41 54 45 20 54   _segdir.CREATE T
+|   3632: 41 42 4c 45 20 27 74 31 5f 73 65 67 64 69 72 27   ABLE 't1_segdir'
+|   3648: 28 6c 65 76 65 6c 20 49 4e 54 45 47 45 52 2c 69   (level INTEGER,i
+|   3664: 64 78 20 49 4e 54 45 47 45 52 2c 73 74 61 72 74   dx INTEGER,start
+|   3680: 5f 62 6c 6f 63 6b 20 49 4e 54 45 47 45 52 2c 6c   _block INTEGER,l
+|   3696: 65 61 76 65 73 5f 65 6e 64 5f 62 6c 6f 63 6b 20   eaves_end_block 
+|   3712: 49 4e 54 45 47 45 52 2c 65 6e 64 5f 62 6c 6f 63   INTEGER,end_bloc
+|   3728: 6b 20 49 4e 54 45 47 45 52 2c 72 6f 6f 74 20 42   k INTEGER,root B
+|   3744: 4c 4f 42 2c 50 52 49 4d 41 52 59 20 4b 45 59 28   LOB,PRIMARY KEY(
+|   3760: 6c 65 76 65 6c 2c 20 69 64 78 29 29 31 05 06 17   level, idx))1...
+|   3776: 45 1f 01 00 69 6e 64 65 78 73 71 6c 69 74 65 5f   E...indexsqlite_
+|   3792: 61 75 74 6f 69 6e 64 65 78 5f 74 31 5f 73 65 67   autoindex_t1_seg
+|   3808: 64 69 72 5f 31 74 31 5f 73 65 67 64 69 72 05 00   dir_1t1_segdir..
+|   3824: 00 00 08 00 00 00 00 66 03 07 17 23 23 01 81 13   .......f...##...
+|   3840: 74 61 62 6c 65 74 31 5f 73 65 67 6d 65 6e 74 73   tablet1_segments
+|   3856: 74 31 5f 73 65 67 6d 65 6e 74 73 03 43 52 45 41   t1_segments.CREA
+|   3872: 54 45 20 54 41 42 4c 45 20 27 74 31 5f 73 65 67   TE TABLE 't1_seg
+|   3888: 6d 65 6e 74 73 27 28 62 6c 6f 63 6b 69 64 20 49   ments'(blockid I
+|   3904: 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b   NTEGER PRIMARY K
+|   3920: 45 59 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42 29 5c   EY, block BLOB).
+|   3936: 02 07 17 21 21 01 81 03 74 61 62 6c 65 74 31 5f   ...!!...tablet1_
+|   3952: 63 6f 6e 74 65 6e 74 74 31 5f 63 6f 6e 74 65 6e   contentt1_conten
+|   3968: 74 02 43 52 45 41 54 45 20 54 41 42 4c 45 20 27   t.CREATE TABLE '
+|   3984: 74 31 5f 63 6f 6e 74 65 6e 74 27 28 64 6f 63 69   t1_content'(doci
+|   4000: 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52   d INTEGER PRIMAR
+|   4016: 59 20 4b 45 59 2c 20 27 63 30 61 27 29 41 01 06   Y KEY, 'c0a')A..
+|   4032: 17 11 11 08 71 74 61 62 6c 65 74 31 74 31 43 52   ....qtablet1t1CR
+|   4048: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4064: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 34   LE t1 USING fts4
+|   4080: 28 61 2c 70 72 65 66 69 78 3d 27 31 2c 32 27 29   (a,prefix='1,2')
+| page 2 offset 4096
+|      0: 0d 00 00 00 08 0e 1f 00 0f c4 0f 7c 0f 34 0f 07   ...........|.4..
+|     16: 0e c3 0e 97 0e 63 0e 1f 00 00 00 00 00 00 00 00   .....c..........
+|   3600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 42   ...............B
+|   3616: 08 04 00 81 09 73 75 6e 74 20 69 6e 20 63 75 6c   .....sunt in cul
+|   3632: 70 61 20 71 75 69 20 6f 66 66 69 63 69 61 20 64   pa qui officia d
+|   3648: 65 73 65 72 75 6e 74 20 6d 6f 6c 6c 69 74 20 61   eserunt mollit a
+|   3664: 6e 69 6d 20 69 64 20 65 73 74 20 6c 61 62 6f 72   nim id est labor
+|   3680: 75 6d 2e 32 07 03 00 6b 45 78 63 65 70 74 65 75   um.2...kExcepteu
+|   3696: 72 20 73 69 6e 74 20 6f 63 63 61 65 63 67 42 06   r sint occaecgB.
+|   3712: 37 57 06 96 46 17 46 17 42 06 e6 f6 e2 07 07 26   7W..F.F.B......&
+|   3728: f6 96 46 56 e7 42 c2 a0 60 30 05 b6 36 96 c6 c7   ..FV.B..`0..6...
+|   3744: 56 d2 06 46 f6 c6 f7 26 52 06 57 52 06 67 56 7c   V..F...&R.WR.gV|
+|   3760: 65 3f 04 20 6e 75 6c 6c 61 20 70 61 72 69 61 74   e?. nulla pariat
+|   3776: 75 72 2e 42 05 04 00 81 09 44 75 69 73 20 61 75   ur.B.....Duis au
+|   3792: 74 65 20 69 72 75 72 65 20 64 6f 6c 6f 72 20 69   te irure dolor i
+|   3808: 6e 20 72 65 70 72 65 68 65 6e 64 65 72 69 74 20   n reprehenderit 
+|   3824: 69 6e 20 76 6f 6c 75 70 74 61 74 65 20 76 65 6c   in voluptate vel
+|   3840: 69 74 20 65 73 73 65 2b 04 03 00 5d 6e 69 73 69   it esse+...]nisi
+|   3856: 20 75 74 20 61 6c 69 71 75 69 70 20 65 78 20 65    ut aliquip ex e
+|   3872: 61 20 63 6f 6d 6d 6f 64 6f 20 63 6f 6e 73 65 71   a commodo conseq
+|   3888: 75 61 74 2e 46 03 04 00 81 11 55 74 20 65 6e 69   uat.F.....Ut eni
+|   3904: 6d 20 61 64 20 6d 69 6e 69 6d 20 76 65 6e 69 61   m ad minim venia
+|   3920: 6d 2c 20 71 75 69 73 20 6e 6f 73 74 72 75 64 20   m, quis nostrud 
+|   3936: 65 78 65 72 63 69 74 61 74 69 6f 6e 20 75 6c 6c   exercitation ull
+|   3952: 61 6d 63 6f 20 6c 61 62 6f 72 69 73 46 02 04 00   amco laborisF...
+|   3968: 81 11 73 65 64 20 64 6f 20 65 69 75 73 6d 6f 64   ..sed do eiusmod
+|   3984: 20 74 65 6d 70 6f 72 20 69 6e 63 69 64 69 64 75    tempor incididu
+|   4000: 6e 74 20 75 74 20 6c 61 62 6f 72 65 20 65 74 20   nt ut labore et 
+|   4016: 64 6f 6c 6f 72 65 20 6d 61 67 6e 61 20 61 6c 69   dolore magna ali
+|   4032: 71 75 61 2e 3a 01 03 00 7b 4c 6f 72 65 6d 20 69   qua.:....Lorem i
+|   4048: 70 73 75 6d 20 64 6f 6c 6f 72 20 73 69 72 12 29   psum dolor sir.)
+|   4064: 0d 65 74 2c 20 63 6f 6e 73 65 63 74 65 74 75 72   .et, consectetur
+|   4080: 20 61 64 69 70 69 73 63 69 6e 67 20 65 6c 69 74    adipiscing elit
+| page 3 offset 8192
+|      0: 0d 00 00 00 00 10 30 00 10 17 50 30 80 20 00 00   ......0...P0. ..
+|     16: 27 46 50 30 20 50 00 00 27 56 c0 30 30 a0 00 10   'FP0 P..'V.00...
+|     32: 17 40 90 20 70 00 10 20 00 10 30 00 00 27 66 50   .@. p.. ..0..'fP
+|     48: 60 30 60 00 20 a0 00 10 16 f0 30 50 90 08 20 a0   `0`. .....0P.. .
+|     64: 20 80 20 80 80 81 78 40 20 40 03 02 03 23 53 10    . ...x@ @...#S.
+|     80: 00 16 11 30 10 60 40 00 10 c0 00 10 40 00 00 00   ...0.`@.....@...
+|     96: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 78 24   ..............x$
+|    112: 41 71 83 37 10 27 97 60 10 40 00 00 16 41 10 10   Aq.7.'.`.@...A..
+|    128: 40 00 10 30 90 00 30 20 50 00 10 30 00 20 70 00   @..0..0 P..0. p.
+|    144: 00 16 51 b0 10 90 00 10 40 70 00 10 30 80 00 10   ..Q.....@p..0...
+|    160: 50 30 00 10 b0 00 10 40 00 10 20 00 10 b0 00 00   P0.....@.. .....
+|    176: 16 60 30 60 50 00 00 16 90 f0 10 30 00 10 60 00   .`0`P......0..`.
+|    192: 30 40 40 40 00 30 30 90 00 00 16 c0 c0 10 20 00   0@@@.00....... .
+|    208: 10 80 00 10 b0 00 50 c0 00 00 16 d0 90 20 b0 00   ......P...... ..
+|    224: 10 50 00 50 80 00 00 16 e0 c0 30 80 00 10 20 00   .P.P......0... .
+|    240: 20 60 00 10 60 00 00 16 f0 60 70 40 00 10 60 00    `..`....`p@..`.
+|    256: 00 17 00 60 60 70 00 10 70 00 00 17 10 60 30 70   ...``p..p....`0p
+|    272: 00 50 50 00 00 17 20 30 50 70 00 00 17 30 c0 10   .PP... 0Pp...0..
+|    288: 50 00 10 20 00 50 30 00 10 20 00 00 17 40 30 20   P.. .P0.. ...@0 
+|    304: 50 00 00 17 50 a0 20 70 00 10 20 a0 00 10 30 00   P...P. p.. ...0.
+|    320: 00 17 60 70 30 60 00 20 90 30 08 52 60 10 80 80   ..`p0`. .0.R`...
+|    336: 80 80 81 78 a3 e3 02 03 63 63 50 00 26 16 40 30   ...x....ccP.&.@0
+|    352: 30 40 00 20 86 97 06 97 36 36 96 e6 70 30 10 80   0@. ....66..p0..
+|    368: 00 10 56 c6 97 17 56 10 30 20 c0 00 50 26 97 00   ..V...V.0 ..P&..
+|    384: 30 40 40 00 10 36 d6 57 40 30 10 60 00 10 36 e6   0@@..6.W@0.`..6.
+|    400: 96 d0 30 80 90 00 10 37 57 46 50 30 50 30 00 00   ..0....7WFP0P0..
+|    416: 66 36 96 c6 c7 56 d0 30 60 20 00 10 66 f6 d6 d6   f6...V.0` ..f...
+|    432: f6 46 f0 30 40 70 00 20 96 e7 36 56 37 46 57 47   .F.0@p. ..6V7FWG
+|    448: 57 20 30 10 70 00 50 47 17 56 17 40 30 40 80 00   W 0.p.PG.V.@0@..
+|    464: 10 47 56 c7 06 10 30 80 40 00 20 77 06 96 46 17   .GV...0.@. w..F.
+|    480: 46 17 40 30 70 50 00 00 86 46 57 36 57 27 56 e7   F.@0pP...FW6W'V.
+|    496: 40 30 80 70 00 10 16 f0 30 20 30 00 20 36 c6 f7   @0.p....0 0. 6..
+|    512: 20 60 10 40 00 40 50 00 50 16 50 60 20 a0 00 40    `.@.@P.P.P` ..@
+|    528: 30 00 10 37 56 97 30 30 50 20 00 00 26 56 10 30   0..7V.00P ..&V.0
+|    544: 40 60 00 10 66 97 57 36 d6 f6 40 30 20 40 00 10   @`..f.W6..@0 @..
+|    560: 36 c6 97 40 30 10 90 00 15 35 14 c6 97 46 52 06   6..@0....5...FR.
+|    576: 66 f7 26 d6 17 42 03 30 01 00 00 10 10 04 02 02   f.&..B.0........
+|    592: 00 00 00 00 00 00 00 00 70 00 00 00 00 00 00 00   ........p.......
+|    608: 00 00 00 00 60 00 00 00 40 00 00 00 00 00 00 00   ....`...@.......
+| page 4 offset 12288
+|      0: 0d 00 00 00 03 0a a6 00 0d 57 0c 4a 0a a6 00 00   .........W.J....
+|   2720: 00 00 00 00 00 00 83 21 03 08 02 08 08 08 17 86   .......!........
+|   2736: 30 08 00 30 20 34 30 32 00 02 61 64 06 01 08 00   0..0 402..ad....
+|   2752: 02 04 00 01 01 6c 06 02 0c 00 02 04 00 01 01 6d   .....l.........m
+|   2768: 03 01 06 00 01 01 6e 03 08 00 00 91 01 75 03 05   ......n......u..
+|   2784: 03 00 00 02 63 69 03 06 02 00 01 01 6f 07 01 07   ....ci......o...
+|   2800: 00 03 07 03 00 01 01 75 06 07 05 00 01 04 00 00   .......u........
+|   2816: 02 64 65 03 08 07 00 01 01 6f 0d 01 04 00 01 03   .de......o......
+|   2832: 09 00 03 05 00 01 03 00 01 01 75 03 05 02 00 00   ..........u.....
+|   2848: 02 65 61 03 04 06 00 01 01 69 03 02 04 00 01 01   .ea......i......
+|   2864: 6c 03 01 09 00 01 01 6e 30 03 03 00 01 01 73 06   l......n0.....s.
+|   2880: 05 0b 00 03 0b 00 01 01 74 03 02 09 00 01 01 75   ........t......u
+|   2896: 03 06 04 00 01 01 78 09 03 09 00 01 05 00 03 02   ......x.........
+|   2912: 00 00 02 66 75 03 06 05 00 00 02 69 64 03 08 0a   ...fu......id...
+|   2928: 00 01 01 6e 0a 02 06 00 03 06 04 00 03 03 00 01   ...n............
+|   2944: 01 70 03 01 03 00 01 01 72 03 05 04 00 00 02 6c   .p......r......l
+|   2960: 61 09 02 08 00 01 0b 00 05 0c 00 01 01 6f 03 01   a............o..
+|   2976: 02 00 00 02 6d 61 03 02 0b 00 01 01 69 03 03 05   ....ma......i...
+|   2992: 00 01 01 6f 03 08 08 00 00 02 6e 69 03 04 02 00   ...o......ni....
+|   3008: 01 01 6f 06 03 08 00 04 06 00 01 01 75 03 06 06   ..o.........u...
+|   3024: 00 00 02 6f 63 03 07 04 00 01 01 66 03 08 06 00   ...oc......f....
+|   3040: 00 02 70 61 03 06 07 00 01 01 72 03 07 07 00 00   ..pa......r.....
+|   3056: 02 71 75 06 03 07 00 05 05 00 00 02 72 65 03 05   .qu.........re..
+|   3072: 07 00 00 02 73 65 03 02 02 00 01 01 69 06 01 05   ....se......i...
+|   3088: 00 06 03 00 01 01 75 03 08 02 00 00 02 74 65 03   ......u......te.
+|   3104: 02 05 00 00 02 75 6c 03 03 0a 00 01 01 74 09 02   .....ul......t..
+|   3120: 07 00 01 02 00 01 03 00 00 02 76 65 06 03 06 00   ..........ve....
+|   3136: 02 0a 00 01 01 6f 03 05 09 00 82 0a 02 08 02 08   .....o..........
+|   3152: 08 08 17 84 02 04 00 30 20 32 35 31 00 01 61 13   .......0 251..a.
+|   3168: 01 06 04 00 01 0c 00 01 04 00 01 04 00 01 03 00   ................
+|   3184: 03 09 00 00 01 63 10 01 07 00 03 07 03 00 02 02   .....c..........
+|   3200: 00 01 05 00 01 04 00 00 01 64 11 01 04 00 01 03   .........d......
+|   3216: 09 00 03 02 05 00 01 03 00 02 07 00 00 01 65 1b   ..............e.
+|   3232: 01 09 00 01 04 01 70 00 03 01 80 00 05 03 00 01   ......p.........
+|   3248: 0b 00 01 04 00 01 02 00 01 0b 00 00 01 66 03 06   .............f..
+|   3264: 05 00 00 01 69 0f 01 03 00 01 06 00 03 04 04 04   ....i...........
+|   3280: 00 03 03 09 00 00 01 6c 0c 01 02 00 01 08 00 01   .......l........
+|   3296: 0b 00 05 0c 00 00 01 6d 09 02 0b 00 01 05 00 05   .......m........
+|   3312: 08 00 00 01 6e 0c 03 08 00 01 02 00 02 06 00 01   ....n...........
+|   3328: 06 00 00 01 6f 06 07 04 00 01 06 00 00 01 70 06   ....o.........p.
+|   3344: 06 07 00 01 07 00 00 01 71 06 03 07 00 05 05 00   ........q.......
+|   3360: 00 01 72 03 05 07 00 00 01 73 0c 01 05 00 01 02   ..r......s......
+|   3376: 00 05 03 00 01 02 00 00 01 74 03 02 05 00 00 01   .........t......
+|   3392: 75 0a 02 07 00 01 02 0a 00 01 03 00 00 01 76 07   u.............v.
+|   3408: 03 06 00 02 09 03 00 85 26 01 08 08 08 08 08 17   ........&.......
+|   3424: 8a 3e 30 20 36 36 35 00 02 61 64 03 03 04 00 02   .>0 665..ad.....
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+|   3744: 08 0a 00 01 01 6e 07 05 06 04 00 03 03 00 02 08   .....n..........
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+|   3856: 69 74 03 08 08 00 00 04 6e 69 73 69 03 04 02 00   it......nisi....
+|   3872: 01 02 6f 6e 03 07 06 00 02 05 73 74 72 75 64 03   ..on......strud.
+|   3888: 03 08 00 01 04 75 6c 6c 61 03 06 06 00 00 08 6f   .....ulla......o
+|   3904: 63 63 61 65 63 61 74 03 07 04 00 01 06 66 66 69   ccaecat......ffi
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+|   3936: 72 03 06 07 00 01 07 72 6f 69 64 65 6e 74 03 07   r......roident..
+|   3952: 07 00 00 03 71 75 69 03 08 05 00 03 01 73 03 03   ....qui......s..
+|   3968: 07 00 00 0d 72 65 70 72 65 68 65 6e 64 65 72 69   ....reprehenderi
+|   3984: 74 03 05 07 00 00 03 73 65 64 03 02 02 00 01 03   t......sed......
+|   4000: 69 6e 74 03 07 03 00 02 01 74 03 01 05 00 01 03   int......t......
+|   4016: 75 6e 74 03 08 02 00 00 06 74 65 6d 70 6f 72 03   unt......tempor.
+|   4032: 02 05 00 00 07 75 6c 6c 61 6d 63 6f 03 03 0a 00   .....ullamco....
+|   4048: 01 01 74 09 02 07 00 01 02 00 01 03 00 00 05 76   ..t............v
+|   4064: 65 6c 69 74 03 05 0a 00 02 04 6e 69 61 6d 03 03   elit......niam..
+|   4080: 06 00 01 08 6f 6c 75 70 74 61 74 65 03 05 09 00   ....oluptate....
+| page 5 offset 16384
+|      0: 0a 00 00 00 03 0f eb 00 0f fb 0f f3 0f eb 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 07 04 02 08 01   ................
+|   4080: 08 00 03 07 04 02 08 01 04 00 02 04 04 08 08 09   ................
+| page 6 offset 20480
+|      0: 0d 00 00 00 08 0f d0 00 0f fa 0f f4 0f ee 0f e8   ................
+|     16: 0f e2 0f dc 0f d6 0f d0 00 00 00 00 00 00 00 00   ................
+|   4048: 04 08 03 00 0e 0b 04 07 03 00 0e 06 04 06 03 00   ................
+|   4064: 0e 06 04 05 03 00 0e 0a 04 04 03 00 0e 07 04 03   ................
+|   4080: 03 00 0e 0a 04 02 03 00 0e 0b 04 01 03 00 0e 08   ................
+| page 7 offset 24576
+|      0: 0d 00 00 00 01 0f f7 00 0f f7 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 07 00 03 00 14 08 45 b5 03   .............E..
+| page 8 offset 28672
+|      0: 6f ee cd e1 f1 ee 1a ca be ed ee ec de ac f1 cb   o...............
+|     16: f1 ee 1a ce de ee f1 ee 0a cc de ed ae 90 87 88   ................
+|     32: ec 5e dc ec fc 11 72 32 75 0a da be ec ed eb de   .^....r2u.......
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+|     80: 00 00 00 00 e0 00 00 00 04 2c 80 00 10 42 4e c1   .........,...BN.
+|     96: 20 4b 45 59 2c 6e 6f 64 65 6e 6f 2c 61 30 29 46    KEY,nodeno,a0)F
+|    112: 02 06 17 11 11 08 7b 74 61 62 6c 65 74 31 74 31   .......tablet1t1
+|    128: 43 52 45 41 54 e1 ec eb ea eb eb ac ee ce be de   CREAT...........
+|    144: ee f1 ee 1a ca ba de 47 80 30 00 14 90 47 70 30   .......G.0...Gp0
+|    160: 00 11 60 47 60 30 00 15 f0 47 50 30 00 10 f0 47   ..`G`0...GP0...G
+|    176: 40 30 00 11 f0 47 45 20 30 00 11 d0 45 10 30 00   @0...GE 0...E.0.
+|    192: 12 10 45 00 30 00 14 e0 44 f0 30 00 11 e0 44 e0   ..E.0...D.0...D.
+|    208: 30 00 12 a0 44 d0 30 00 15 e0 44 c0 30 00 10 40   0...D.0...D.0..@
+|    224: 44 b0 30 00 15 10 44 a0 30 00 14 c0 44 90 30 00   D.0...D.0...D.0.
+|    240: 16 20 44 80 30 00 52 45 41 54 45 20 54 41 42 4c   . D.0.REATE TABL
+|    256: 45 20 27 74 31 5f 63 6f 6e 74 65 6e 74 27 28 69   E 't1_content'(i
+|    272: 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52   d INTEGER PRIMAR
+|    288: 59 20 4b 45 59 2c 20 63 30 29 69 03 07 17 19 19   Y KEY, c0)i.....
+|    304: 01 81 2d 74 61 62 6c 65 74 31 5f 69 64 78 74 31   ..-tablet1_idxt1
+|    320: 5f 69 64 78 03 43 52 45 41 54 45 20 54 41 42 4c   _idx.CREATE TABL
+|    336: 45 20 27 70 31 5f 69 64 78 03 6e 69 6d 03 03 03   E 'p1_idx.nim...
+|    352: 00 01 03 73 73 65 03 05 0b 00 02 01 74 03 08 0b   ...sse......t...
+|    368: 00 01 01 74 03 02 09 00 01 01 75 03 06 04 00 01   ...t......u.....
+|    384: 01 78 03 04 05 00 02 07 63 65 70 74 65 75 72 03   .x......cepteur.
+|    400: 07 02 00 02 0a 65 72 63 69 74 61 74 69 6f 6e 03   .....ercitation.
+|    416: 03 09 00 00 06 66 75 67 69 61 74 03 06 05 00 00   .....fugiat.....
+|    432: 02 69 64 03 08 0a 00 01 01 6e 07 05 06 04 00 03   .id......n......
+|    448: 03 00 02 08 63 69 64 69 64 75 6e 74 03 02 06 00   ....cididunt....
+|    464: 01 04 70 73 75 6d 03 01 03 00 01 04 72 75 72 65   ..psum......rure
+|    480: 03 05 04 00 00 06 6c 61 62 6f 72 65 03 02 08 00   ......labore....
+|    496: 05 02 69 73 03 03 0b 00 05 02 75 6d 03 08 0c 00   ..is......um....
+|    512: 01 04 6f 72 65 6d 03 01 02 00 00 05 6d 61 67 6e   ..orem......magn
+|    528: 61 03 02 0b 00 01 04 69 6e 69 6d 03 03 05 00 01   a......inim.....
+|    544: 05 6f 6c 6c 69 74 03 08 08 00 00 04 6e 69 73 69   .ollit......nisi
+|    560: 03 04 02 00 01 02 6f 6e 03 07 06 00 02 05 73 74   ......on......st
+|    576: 72 75 64 03 03 08 00 01 04 75 6c 6c 61 03 06 06   rud......ulla...
+|    592: 00 00 08 6f 63 63 61 65 63 61 74 03 07 04 00 01   ...occaecat.....
+|    608: 06 66 66 69 63 69 61 03 08 06 00 00 08 70 61 72   .fficia......par
+|    624: 69 61 74 75 72 03 06 07 00 01 07 72 6f ed ce de   iatur......ro...
+|    640: 69 64 65 6e 74 03 07 07 00 00 03 71 75 69 03 08   ident......qui..
+|    656: 05 00 03 01 73 03 03 07 00 00 0d 72 65 70 72 65   ....s......repre
+|    672: 68 65 6e 64 65 72 69 74 03 05 07 00 00 03 73 65   henderit......se
+|    688: 64 03 02 02 00 01 03 69 6e 74 03 07 03 00 02 01   d......int......
+|    704: 74 03 01 05 00 01 03 75 6e 74 03 08 02 00 00 06   t......unt......
+|    720: 74 65 6d 70 6f 72 03 02 05 00 00 07 75 6c 6c 61   tempor......ulla
+|    736: 6d 63 6f 03 03 0a 00 01 01 74 09 02 07 00 01 02   mco......t......
+|    752: 00 01 03 00 00 05 76 65 6c 69 74 03 05 0a 00 02   ......velit.....
+|    768: 04 6e 69 61 6d 03 03 06 00 01 08 6f 6c 75 70 74   .niam......olupt
+|    784: 61 74 65 03 05 09 00 0a 00 00 00 03 0f eb 00 0f   ate.............
+|    800: fb 0f f3 0f eb 00 00 00 00 00 00 00 00 00 00 00   ................
+| end crash-04bb6e7c811ce9.db
+}]} {}
+
+do_catchsql_test 7.1 {
+  SELECT matchinfo(t1,'y') FROM t1 WHERE t1 MATCH 'e*';
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 8.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 28672 pagesize 4096 filename crash-7948058d822acb.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 07   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 06 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 0e ef 00 07 0d 4d 00 0f bd 0f 5f   ..........M...._
+|    112: 0e f7 0e 06 0e bc 0d a4 0d 4d 00 00 00 00 00 00   .........M......
+|   3392: 00 00 00 00 00 00 00 00 00 00 00 00 00 55 07 07   .............U..
+|   3408: 17 1b 1b 01 81 01 74 61 62 6c 65 74 31 5f 73 74   ......tablet1_st
+|   3424: 61 74 74 31 5f 73 74 61 74 07 43 52 45 41 54 45   att1_stat.CREATE
+|   3440: 20 54 41 42 4c 45 20 27 74 31 5f 73 74 61 74 27    TABLE 't1_stat'
+|   3456: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   (id INTEGER PRIM
+|   3472: 41 52 59 20 4b 45 59 2c 20 76 61 6c 75 65 20 42   ARY KEY, value B
+|   3488: 4c 4f 42 29 60 06 07 17 21 21 01 81 0b 74 61 62   LOB)`...!!...tab
+|   3504: 6c 65 74 31 5f 64 6f 63 73 69 7a 65 74 31 5f 64   let1_docsizet1_d
+|   3520: 6f 63 73 69 7a 65 06 43 52 45 41 54 45 20 54 41   ocsize.CREATE TA
+|   3536: 42 4c 45 20 27 74 31 5f 64 6f 63 73 69 7a 65 27   BLE 't1_docsize'
+|   3552: 28 64 6f 63 69 64 20 49 4e 54 45 47 45 52 20 50   (docid INTEGER P
+|   3568: 52 49 4d 41 52 59 20 4b 45 59 2c 20 73 69 7a 65   RIMARY KEY, size
+|   3584: 20 42 4c 4f 42 29 81 33 04 07 17 1f 1f 01 82 35    BLOB).3.......5
+|   3600: 74 61 62 6c 65 74 31 5f 73 65 67 64 69 72 74 31   tablet1_segdirt1
+|   3616: 5f 73 65 67 64 69 72 04 43 52 45 41 54 45 20 54   _segdir.CREATE T
+|   3632: 41 42 4c 45 20 27 74 31 5f 73 65 67 64 69 72 27   ABLE 't1_segdir'
+|   3648: 28 6c 65 76 65 6c 20 49 4e 54 45 47 45 52 2c 69   (level INTEGER,i
+|   3664: 64 78 20 49 4e 54 45 47 45 52 2c 73 74 61 72 74   dx INTEGER,start
+|   3680: 5f 62 6c 6f 63 6b 20 49 4e 54 45 47 45 52 2c 6c   _block INTEGER,l
+|   3696: 65 61 76 65 73 5f 65 6e 64 5f 62 6c 6f 63 6b 20   eaves_end_block 
+|   3712: 49 4e 54 45 47 45 52 2c 65 6e 64 5f 62 6c 6f 63   INTEGER,end_bloc
+|   3728: 6b 20 49 4e 54 45 47 45 52 2c 72 6f 6f 74 20 42   k INTEGER,root B
+|   3744: 4c 4f 42 2c 50 52 49 4d 41 52 59 20 4b 45 59 28   LOB,PRIMARY KEY(
+|   3760: 6c 65 76 65 6c 2c 20 69 64 78 29 29 31 05 06 17   level, idx))1...
+|   3776: 45 1f 01 00 69 6e 64 65 78 73 71 6c 69 74 65 5f   E...indexsqlite_
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+|   3808: 64 69 72 5f 31 74 31 5f 73 65 67 64 69 72 05 00   dir_1t1_segdir..
+|   3824: 00 00 08 00 00 00 00 66 03 07 17 23 23 01 81 13   .......f...##...
+|   3840: 74 61 62 6c 65 74 31 5f 73 65 67 6d 65 6e 74 73   tablet1_segments
+|   3856: 74 31 5f 73 65 67 6d 65 6e 74 73 03 43 52 45 41   t1_segments.CREA
+|   3872: 54 45 20 54 41 42 4c 45 20 27 74 31 5f 73 65 67   TE TABLE 't1_seg
+|   3888: 6d 65 6e 74 73 27 28 62 6c 6f 63 6b 69 64 20 49   ments'(blockid I
+|   3904: 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b   NTEGER PRIMARY K
+|   3920: 45 59 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42 29 5c   EY, block BLOB).
+|   3936: 02 07 17 21 21 01 81 03 74 61 62 6c 65 74 31 5f   ...!!...tablet1_
+|   3952: 63 6f 6e 74 65 6e 74 74 31 5f 63 6f 6e 74 65 6e   contentt1_conten
+|   3968: 74 02 43 52 45 41 54 45 20 54 41 42 4c 45 20 27   t.CREATE TABLE '
+|   3984: 74 31 5f 63 6f 6e 74 65 6e 74 27 28 64 6f 63 69   t1_content'(doci
+|   4000: 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52   d INTEGER PRIMAR
+|   4016: 59 20 4b 45 59 2c 20 27 63 30 61 27 29 41 01 06   Y KEY, 'c0a')A..
+|   4032: 17 11 11 08 71 74 61 62 6c 65 74 31 74 31 43 52   ....qtablet1t1CR
+|   4048: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4064: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 34   LE t1 USING fts4
+|   4080: 28 61 2c 70 72 65 66 69 78 3d 27 31 2c 32 27 29   (a,prefix='1,2')
+| page 2 offset 4096
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+| page 3 offset 8192
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+|   3696: 05 00 02 07 63 65 70 74 65 75 72 03 07 02 00 02   ....cepteur.....
+|   3712: 0a 65 72 63 69 74 61 74 69 6f 6e 03 03 09 00 00   .ercitation.....
+|   3728: 06 66 75 67 69 61 74 03 06 05 00 00 02 69 64 03   .fugiat......id.
+|   3744: 08 0a 00 01 01 6e 07 05 06 04 00 03 03 00 02 08   .....n..........
+|   3760: 63 69 64 69 64 75 6e 74 03 02 06 00 01 04 70 73   cididunt......ps
+|   3776: 75 6d 03 01 03 00 01 04 72 75 72 65 03 05 04 00   um......rure....
+|   3792: 00 06 6c 61 62 6f 72 65 03 02 08 00 05 02 69 73   ..labore......is
+|   3808: 03 03 0b 00 05 02 75 6d 03 08 0c 00 01 04 6f 72   ......um......or
+|   3824: 65 6d 03 01 02 00 00 05 6d 61 67 6e 61 03 02 0b   em......magna...
+|   3840: 00 01 04 69 6e 69 6d 03 03 05 00 01 05 6f 6c 6c   ...inim......oll
+|   3856: 69 74 03 08 08 00 00 04 6e 69 73 69 03 04 02 00   it......nisi....
+|   3872: 01 02 6f 6e 03 07 06 00 02 05 73 74 72 75 64 03   ..on......strud.
+|   3888: 03 08 00 01 04 75 6c 6c 61 03 06 06 00 00 08 6f   .....ulla......o
+|   3904: 63 63 61 65 63 61 74 03 07 04 00 01 06 66 66 69   ccaecat......ffi
+|   3920: 63 69 61 03 08 06 00 00 08 70 61 72 69 61 74 75   cia......pariatu
+|   3936: 72 03 06 07 00 01 07 72 6f 69 64 65 6e 74 03 07   r......roident..
+|   3952: 07 00 00 03 71 75 69 03 08 05 00 03 01 73 03 03   ....qui......s..
+|   3968: 07 00 00 0d 72 65 70 72 65 68 65 6e 64 65 72 69   ....reprehenderi
+|   3984: 74 03 05 07 00 00 03 73 65 64 03 02 02 00 01 03   t......sed......
+|   4000: 69 6e 74 03 07 03 00 02 01 74 03 01 05 00 01 03   int......t......
+|   4016: 75 6e 74 03 08 02 00 00 06 74 65 6d 70 6f 72 03   unt......tempor.
+|   4032: 02 05 00 00 07 75 6c 6c 61 6d 63 6f 03 03 0a 00   .....ullamco....
+|   4048: 01 01 74 09 02 07 00 01 02 00 01 03 00 00 05 76   ..t............v
+|   4064: 65 6c 69 74 03 05 0a 00 02 04 6e 69 61 6d 03 03   elit......niam..
+|   4080: 06 00 01 08 6f 6c 75 70 74 61 74 65 03 05 09 00   ....oluptate....
+| page 5 offset 16384
+|      0: 0a 00 00 00 03 0f eb 00 0f fb 0f f3 0f eb 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 07 04 02 08 01   ................
+|   4080: 08 00 03 07 04 02 08 01 04 00 02 04 04 08 08 09   ................
+| page 6 offset 20480
+|      0: 0d 00 00 00 08 0f d0 00 0f fa 0f f4 0f ee 0f e8   ................
+|     16: 0f e2 0f dc 0f d6 0f d0 00 00 00 00 00 00 00 00   ................
+|   4048: 04 08 03 00 0e 0b 04 07 03 00 0e 06 04 06 03 00   ................
+|   4064: 0e 06 04 05 03 00 0e 0a 04 04 03 00 0e 07 04 03   ................
+|   4080: 03 00 0e 0a 04 02 03 00 0e 0b 04 01 03 00 0e 08   ................
+| page 7 offset 24576
+|      0: 0d 00 00 00 01 0f f7 00 0f f7 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 07 00 03 00 14 08 45 b5 03   .............E..
+| end crash-7948058d822acb.db
+}]} {}
+
+do_catchsql_test 8.1 {
+  SELECT matchinfo(t1,'x') FROM t1 WHERE t1 MATCH 'e*';
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 9.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 28672 pagesize 4096 filename crash-e1c6cbfdf643e9.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 07   .....@  ........
+|     32: 00 00 00 02 00 00 00 01 00 00 00 07 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 0e b1 00 06 0d a4 00 0f 8d 0f 21   ...............!
+|    112: 0e b9 0d c8 0e 7e 0d a4 0d a4 00 00 00 00 00 00   .....~..........
+|   3488: 00 00 00 00 22 07 06 17 11 11 01 31 74 61 62 6c   ...........1tabl
+|   3504: 65 74 32 74 32 07 43 52 45 41 54 45 20 54 41 42   et2t2.CREATE TAB
+|   3520: 4c 45 20 74 32 28 78 29 81 33 05 07 17 1f 1f 01   LE t2(x).3......
+|   3536: 82 35 74 61 62 6c 65 74 31 5f 73 65 67 64 69 72   .5tablet1_segdir
+|   3552: 74 31 5f 73 65 67 64 69 72 05 43 52 45 41 54 45   t1_segdir.CREATE
+|   3568: 20 54 41 42 4c 45 20 27 74 31 5f 73 65 67 64 69    TABLE 't1_segdi
+|   3584: 72 27 28 6c 65 76 65 6c 20 49 4e 54 45 47 45 52   r'(level INTEGER
+|   3600: 2c 69 64 78 20 49 4e 54 45 47 45 52 2c 73 74 61   ,idx INTEGER,sta
+|   3616: 72 74 5f 62 6c 6f 63 6b 20 49 4e 54 45 47 45 52   rt_block INTEGER
+|   3632: 2c 6c 65 61 76 65 73 5f 65 6e 64 5f 62 6c 6f 63   ,leaves_end_bloc
+|   3648: 6b 20 49 4e 54 45 47 45 52 2c 65 6e 64 5f 62 6c   k INTEGER,end_bl
+|   3664: 6f 63 6b 20 49 4e 54 45 47 45 52 2c 72 6f 6f 74   ock INTEGER,root
+|   3680: 20 42 4c 4f 42 2c 50 52 49 4d 41 52 59 20 4b 45    BLOB,PRIMARY KE
+|   3696: 59 28 6c 65 76 65 6c 2c 20 69 64 78 29 29 31 06   Y(level, idx))1.
+|   3712: 06 17 45 1f 01 00 69 6e 64 65 78 73 71 6c 69 74   ..E...indexsqlit
+|   3728: 65 5f 61 75 74 6f 69 6e 64 65 78 5f 74 31 5f 73   e_autoindex_t1_s
+|   3744: 65 67 64 69 72 5f 31 74 31 5f 73 65 67 64 69 72   egdir_1t1_segdir
+|   3760: 06 0f c7 00 08 00 00 00 00 66 04 07 17 23 23 01   .........f...##.
+|   3776: 81 13 74 61 62 6c 65 74 31 5f 73 65 67 6d 65 6e   ..tablet1_segmen
+|   3792: 74 73 74 31 5f 73 65 67 6d 65 6e 74 73 04 43 52   tst1_segments.CR
+|   3808: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 73   EATE TABLE 't1_s
+|   3824: 65 67 6d 65 6e 74 73 27 28 62 6c 6f 63 6b 69 64   egments'(blockid
+|   3840: 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59    INTEGER PRIMARY
+|   3856: 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42    KEY, block BLOB
+|   3872: 29 6a 03 07 17 21 21 01 81 1f 74 61 62 6c 65 74   )j...!!...tablet
+|   3888: 31 5f 63 6f 6e 74 65 6e 74 74 31 5f 63 6f 6e 74   1_contentt1_cont
+|   3904: 65 6e 74 03 43 52 45 41 54 45 20 54 41 42 4c 45   ent.CREATE TABLE
+|   3920: 20 27 74 31 5f 63 6f 6e 74 65 6e 74 27 28 64 6f    't1_content'(do
+|   3936: 63 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   cid INTEGER PRIM
+|   3952: 41 52 59 20 4b 45 59 2c 20 27 63 30 61 27 2c 20   ARY KEY, 'c0a', 
+|   3968: 27 63 31 62 27 2c 20 27 63 32 63 27 29 38 02 06   'c1b', 'c2c')8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 33   LE t1 USING fts3
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 39 00 00 00 00 00   (a,b,c)...9.....
+| page 3 offset 8192
+|      0: 0d 00 00 00 25 0b 48 00 0f d8 0f af 0f 86 0f 74   ....%.H........t
+|     16: 0f 61 0f 4e 0f 2f 0f 0f 0e ef 0e d7 0e be 0e a5   .a.N./..........
+|     32: 0e 8d 0e 74 0e 5b 0e 40 0e 24 0e 08 0d ef 0d d5   ...t.[.@.$......
+|     48: 0d bb 0d a0 0d 84 0d 68 0d 4f 0d 35 0d 1b 0c fb   .......h.O.5....
+|     64: 0c da 0c b9 0c 99 0c 78 0c 57 0c 3e 0c 24 0c 0a   .......x.W.>.$..
+|     80: 0b 48 00 00 00 00 00 00 00 00 00 00 00 00 00 00   .H..............
+|   2880: 00 00 00 00 00 00 00 00 81 3f 25 06 00 82 7f 00   .........?%.....
+|   2896: 00 43 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e   .COMPILER=gcc-5.
+|   2912: 34 2e 30 20 32 30 31 36 30 36 30 39 20 44 45 42   4.0 20160609 DEB
+|   2928: 55 47 20 45 4e 41 42 4c 45 20 44 42 53 54 41 54   UG ENABLE DBSTAT
+|   2944: 20 56 54 41 42 20 45 4e 41 42 4c 45 20 46 54 53    VTAB ENABLE FTS
+|   2960: 34 20 45 4e 41 42 4c 45 20 46 54 53 35 20 45 4e   4 ENABLE FTS5 EN
+|   2976: 41 42 4c 45 20 47 45 4f 50 4f 4c 59 20 45 4e 41   ABLE GEOPOLY ENA
+|   2992: 42 4c 45 20 4a 53 4f 4e 31 20 45 4e 41 42 4c 45   BLE JSON1 ENABLE
+|   3008: 20 4d 45 4d 53 59 53 35 20 45 4e 41 42 4c 45 20    MEMSYS5 ENABLE 
+|   3024: 52 54 52 45 45 20 4d 41 58 20 4d 45 4d 4f 52 59   RTREE MAX MEMORY
+|   3040: 3d 35 30 30 30 30 30 30 30 20 4f 4d 49 54 20 4c   =50000000 OMIT L
+|   3056: 4f 41 44 20 45 58 54 45 4e 53 49 4f 4e 20 54 48   OAD EXTENSION TH
+|   3072: 52 45 41 44 53 41 46 45 3d 30 18 24 05 00 25 0f   READSAFE=0.$..%.
+|   3088: 19 54 48 52 45 41 44 53 41 46 45 3d 30 58 42 49   .THREADSAFE=0XBI
+|   3104: 4e 41 52 59 18 23 05 00 25 0f 19 54 48 52 45 41   NARY.#..%..THREA
+|   3120: 44 53 41 46 45 3d 30 58 4e 4f 43 41 53 45 17 22   DSAFE=0XNOCASE..
+|   3136: 05 00 25 0f 17 54 48 52 45 41 44 53 41 46 45 3d   ..%..THREADSAFE=
+|   3152: 30 58 52 54 52 49 4d 1f 21 05 00 33 0f 19 4f 4d   0XRTRIM.!..3..OM
+|   3168: 49 54 20 4c 4f 41 44 20 35 58 54 45 4e 53 49 4f   IT LOAD 5XTENSIO
+|   3184: 4e 58 42 49 4e 41 52 59 1f 20 05 00 33 0f 19 4f   NXBINARY. ..3..O
+|   3200: 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49   MIT LOAD EXTENSI
+|   3216: 4f 4e 58 4e 4f 43 41 53 45 1e 1f 05 00 33 0f 17   ONXNOCASE....3..
+|   3232: 4f 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53   OMIT LOAD EXTENS
+|   3248: 49 4f 4e 58 52 54 52 49 4d 1f 1e 05 00 33 0f 19   IONXRTRIM....3..
+|   3264: 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30 30   MAX MEMORY=50000
+|   3280: 30 30 30 58 42 49 4e 41 52 59 1f 1d 05 00 33 0f   000XBINARY....3.
+|   3296: 19 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30   .MAX MEMORY=5000
+|   3312: 30 30 30 30 58 4e 4f 43 41 53 45 1e 1c 05 00 33   0000XNOCASE....3
+|   3328: 0f 17 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30   ..MAX MEMORY=500
+|   3344: 30 30 30 30 30 58 52 54 52 49 4d 18 1b 05 00 25   00000XRTRIM....%
+|   3360: 0f 19 45 4e 41 42 4c 45 20 52 54 52 45 45 58 42   ..ENABLE RTREEXB
+|   3376: 49 4e 41 52 59 18 1a 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3392: 4c 45 20 52 54 52 45 45 58 4e 4f 43 41 53 45 17   LE RTREEXNOCASE.
+|   3408: 19 05 00 25 0f 17 45 4e 41 42 4c 45 20 52 54 52   ...%..ENABLE RTR
+|   3424: 45 45 58 52 54 52 49 4d 1a 18 05 00 29 0f 19 45   EEXRTRIM....)..E
+|   3440: 4e 41 42 4c 45 20 4d 45 4d 53 59 53 35 58 42 49   NABLE MEMSYS5XBI
+|   3456: 4e 41 52 59 1a 17 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3472: 45 20 4d 45 4d 53 59 53 35 58 4e 4f 43 41 53 45   E MEMSYS5XNOCASE
+|   3488: 19 16 05 00 29 0f 17 45 4e 41 42 4c 45 20 4d 45   ....)..ENABLE ME
+|   3504: 4d 53 59 53 35 58 52 54 52 49 4d 18 15 05 00 25   MSYS5XRTRIM....%
+|   3520: 0f 19 45 4e 41 42 4c 45 20 4a 53 4f 4e 31 58 42   ..ENABLE JSON1XB
+|   3536: 49 4e 41 52 59 18 14 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3552: 4c 45 20 4a 53 4f 4e 31 58 4e 4f 43 41 53 45 17   LE JSON1XNOCASE.
+|   3568: 13 05 00 25 1f 17 45 4e 41 42 4c 45 20 4a 53 4f   ...%..ENABLE JSO
+|   3584: 4e 31 58 52 54 52 49 4d 1a 12 05 00 29 0f 19 45   N1XRTRIM....)..E
+|   3600: 4e 41 42 4c 45 20 47 45 4f 50 4f 4c 59 58 42 49   NABLE GEOPOLYXBI
+|   3616: 4e 41 52 59 1a 11 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3632: 45 20 47 45 4f 50 4f 4c 59 58 4e 4f 43 41 53 45   E GEOPOLYXNOCASE
+|   3648: 19 10 05 00 29 0f 17 45 4e 41 42 4c 45 20 47 45   ....)..ENABLE GE
+|   3664: 4f 50 4f 4c 59 58 52 54 52 49 4d 17 0f 05 00 23   OPOLYXRTRIM....#
+|   3680: 0f 19 45 4e 41 42 4c 45 20 46 54 53 35 58 42 49   ..ENABLE FTS5XBI
+|   3696: 4e 41 52 59 17 0e 05 00 23 0f 19 45 4e 41 42 4c   NARY....#..ENABL
+|   3712: 45 20 46 54 53 35 58 4e 4f 43 41 53 45 16 0d 05   E FTS5XNOCASE...
+|   3728: 00 23 0f 17 44 4e 41 42 4c 45 20 46 54 53 35 58   .#..DNABLE FTS5X
+|   3744: 52 54 52 49 4d 17 0c 05 00 23 0f 19 45 4e 41 42   RTRIM....#..ENAB
+|   3760: 4c 45 20 46 54 53 34 58 42 49 4e 41 52 59 17 0b   LE FTS4XBINARY..
+|   3776: 05 00 23 0f 19 45 4e 41 42 4c 45 20 46 54 53 34   ..#..ENABLE FTS4
+|   3792: 58 4e 4f 43 41 53 45 16 0a 05 00 23 0f 17 45 4e   XNOCASE....#..EN
+|   3808: 41 42 4c 45 20 46 54 53 34 58 52 54 52 49 4d 1e   ABLE FTS4XRTRIM.
+|   3824: 09 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3840: 54 41 54 20 56 54 41 42 58 42 49 4e 41 52 59 1e   TAT VTABXBINARY.
+|   3856: 08 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3872: 54 41 54 20 56 54 41 42 58 4e 4f 43 41 53 45 1d   TAT VTABXNOCASE.
+|   3888: 07 05 00 31 0f 17 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3904: 54 41 54 20 56 54 41 42 58 52 54 52 49 4d 11 06   TAT VTABXRTRIM..
+|   3920: 05 00 17 0f 19 44 45 42 55 47 58 42 49 4e 41 52   .....DEBUGXBINAR
+|   3936: 59 11 05 05 00 17 0f 19 44 45 42 55 47 58 4e 4f   Y.......DEBUGXNO
+|   3952: 43 41 53 45 10 04 05 00 17 0f 17 44 45 42 55 47   CASE.......DEBUG
+|   3968: 58 52 54 52 49 4d 27 03 05 00 43 0f 19 43 4f 4d   XRTRIM'...C..COM
+|   3984: 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e 30 20   PILER=gcc-5.4.0 
+|   4000: 32 30 31 36 30 36 30 39 58 42 49 4e 41 52 59 27   20160609XBINARY'
+|   4016: 02 05 00 43 0f 19 43 4f 4d 50 49 4c 45 52 3d 67   ...C..COMPILER=g
+|   4032: 63 63 2d 35 2e 34 2e 30 20 32 30 31 36 30 36 30   cc-5.4.0 2016060
+|   4048: 39 58 4e 4f 43 41 53 45 26 01 05 00 43 0f 17 43   9XNOCASE&...C..C
+|   4064: 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e   OMPILER=gcc-5.4.
+|   4080: 30 20 32 30 31 36 30 36 30 39 58 52 54 52 49 4d   0 20160609XRTRIM
+| page 4 offset 12288
+|      0: 0d 00 00 00 00 10 00 00 00 00 00 00 00 00 00 00   ................
+| page 5 offset 16384
+|      0: 0d 00 00 00 02 0b a0 00 0c ad 0b a0 00 00 00 00   ................
+|   2976: 82 0a 02 08 08 09 08 08 17 84 06 30 20 32 35 33   ...........0 253
+|   2992: 00 01 30 04 25 06 1b 00 00 08 32 30 31 36 30 36   ..0.%.....201606
+|   3008: 30 39 03 25 07 00 00 01 34 03 25 05 00 00 01 35   09.%....4.%....5
+|   3024: 03 25 04 00 01 07 30 30 30 30 30 30 30 03 25 1a   .%....0000000.%.
+|   3040: 00 00 08 63 6f 6d 70 69 6c 65 72 03 25 02 00 00   ...compiler.%...
+|   3056: 06 64 62 73 74 61 74 03 25 0a 00 01 04 65 62 75   .dbstat.%....ebu
+|   3072: 67 03 25 08 00 00 06 65 6e 61 62 6c 65 09 25 09   g.%....enable.%.
+|   3088: 05 04 04 04 04 04 00 01 08 78 74 65 6e 73 69 6f   .........xtensio
+|   3104: 6e 03 25 1d 00 00 04 66 74 73 34 03 25 0d 00 03   n.%....fts4.%...
+|   3120: 01 35 03 25 0f 00 00 03 67 63 63 03 25 03 00 01   .5.%....gcc.%...
+|   3136: 06 65 6f 70 6f 6c 79 03 25 11 00 00 05 6a 73 6f   .eopoly.%....jso
+|   3152: 6e 31 03 25 13 00 00 04 6c 6f 61 64 03 25 1c 00   n1.%....load.%..
+|   3168: 00 03 6d 61 78 03 25 18 00 01 05 65 6d 6f 72 79   ..max.%....emory
+|   3184: 03 25 19 00 03 04 73 79 73 35 03 25 15 00 00 04   .%....sys5.%....
+|   3200: 6f 6d 69 74 03 25 1b 00 00 05 72 74 72 65 65 03   omit.%....rtree.
+|   3216: 25 17 00 00 0a 74 68 72 65 61 64 73 61 66 65 03   %....threadsafe.
+|   3232: 25 1e 00 00 04 76 74 61 62 03 25 0b 00 86 50 01   %....vtab.%...P.
+|   3248: 08 08 08 08 08 17 8d 12 30 20 38 33 35 00 01 30   ........0 835..0
+|   3264: 12 01 06 00 01 06 00 01 06 00 1f 03 00 01 03 00   ................
+|   3280: 01 03 00 00 08 32 30 31 36 30 36 30 39 09 01 07   .....20160609...
+|   3296: 00 01 07 00 01 07 00 00 01 34 09 01 05 00 01 05   .........4......
+|   3312: 00 01 05 00 00 01 35 09 01 04 00 01 04 00 01 04   ......5.........
+|   3328: 00 01 07 30 30 30 30 30 30 30 09 1c 04 00 01 04   ...0000000......
+|   3344: 00 01 04 00 00 06 62 69 6e 61 72 79 3c 03 01 02   ......binary<...
+|   3360: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3376: 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00   ................
+|   3392: 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03   ................
+|   3408: 01 02 02 00 03 01 02 02 00 00 08 63 6f 6d 70 69   ...........compi
+|   3424: 6c 65 72 09 01 02 00 01 02 00 01 02 00 00 06 64   ler............d
+|   3440: 62 73 74 61 74 09 07 03 00 01 03 00 01 03 00 01   bstat...........
+|   3456: 04 65 62 75 67 09 04 02 00 01 02 00 01 02 00 00   .ebug...........
+|   3472: 06 65 6e 61 62 6c 65 3f 07 02 00 01 02 00 01 02   .enable?........
+|   3488: 00 01 02 00 01 02 00 01 02 00 01 02 00 01 02 00   ................
+|   3504: 01 02 00 01 02 00 01 02 00 01 02 00 01 01 00 01   ................
+|   3520: 02 00 01 02 00 01 02 00 01 02 00 01 02 00 01 02   ................
+|   3536: 00 01 02 00 01 02 00 01 08 78 74 65 6e 73 69 6f   .........xtensio
+|   3552: 6e 09 1f 04 00 01 04 00 01 04 00 00 04 66 74 73   n............fts
+|   3568: 34 09 0a 03 00 01 03 00 01 03 00 03 01 35 09 0d   4............5..
+|   3584: 03 00 01 03 00 01 03 00 00 03 67 63 63 09 01 03   ..........gcc...
+|   3600: 00 01 03 00 01 03 00 01 06 65 6f 70 6f 6c 79 09   .........eopoly.
+|   3616: 10 03 00 01 03 00 01 03 00 00 05 6a 73 6f 6e 31   ...........json1
+|   3632: 09 13 03 00 01 03 00 01 03 00 00 04 6c 6f 61 64   ............load
+|   3648: 09 1f 03 00 01 03 00 01 03 00 00 03 6d 61 78 09   ............max.
+|   3664: 1c 02 00 01 02 00 01 02 00 01 05 65 6d 6f 72 79   ...........emory
+|   3680: 09 1c 03 00 01 03 00 01 03 00 03 04 73 79 73 35   ............sys5
+|   3696: 09 16 03 00 01 03 00 01 03 00 00 06 6e 6f 63 61   ............noca
+|   3712: 73 65 3c 02 01 02 02 00 03 01 02 02 00 03 01 02   se<.............
+|   3728: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3744: 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00   ................
+|   3760: 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00 00   ................
+|   3776: 04 6f 6d 69 74 09 1f 02 00 01 02 00 01 02 00 00   .omit...........
+|   3792: 05 72 74 72 65 65 09 19 03 00 01 03 00 01 03 00   .rtree..........
+|   3808: 03 02 69 6d 3c 01 01 02 02 00 03 01 02 02 00 03   ..im<...........
+|   3824: 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01   ................
+|   3840: 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02   ................
+|   3856: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3872: 00 00 0a 74 68 72 65 61 64 73 61 66 65 09 22 02   ...threadsafe...
+|   3888: 00 01 02 00 0a 12 00 00 04 76 74 61 62 09 07 04   .........vtab...
+|   3904: 00 01 04 00 01 04 00 00 01 78 b4 01 01 01 01 02   .........x......
+|   3920: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+|   3936: 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01   ................
+|   3952: 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01   ................
+|   3968: 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01   ................
+|   3984: 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02   ................
+|   4000: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+|   4016: 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01   ................
+|   4032: 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01   ................
+|   4048: 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01   ................
+|   4064: 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02   ................
+|   4080: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 02 0f f5 00 0f fb 0f f5 00 00 00 00   ................
+|   4080: 00 00 00 00 00 05 04 08 09 01 02 04 04 08 08 09   ................
+| page 7 offset 24576
+|      0: 0d 00 00 00 05 0f b8 00 0f f4 0f e9 0f d6 0f c7   ................
+|     16: 0f b8 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 0d 05 02 23 61 75 74 6f   ...........#auto
+|   4032: 6d 65 72 67 65 3d 35 0d 04 02 23 6d 65 72 67 65   merge=5...#merge
+|   4048: 3d 31 30 30 2c 38 11 03 02 2b 69 6e 74 65 67 72   =100,8...+integr
+|   4064: 69 74 79 2d 63 68 65 63 6b 09 02 02 1b 72 65 62   ity-check....reb
+|   4080: 75 69 6c 64 0a 01 02 1d 6f 70 74 69 6d 69 7a 65   uild....optimize
+| end crash-e1c6cbfdf643e9.db
+}]} {}
+
+do_execsql_test 9.1 {
+  SELECT count(*) FROM t1 WHERE t1 MATCH '"json1 enable"';
+} {1}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 10.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 28672 pagesize 4096 filename crash-c3a971f0061039.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 07   .....@  ........
+|     32: 00 00 00 02 00 00 00 01 00 00 00 07 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 0e b1 00 06 0d a4 00 0f 8d 0f 21   ...............!
+|    112: 0e b9 0d c8 0e 7e 0d a4 0d a4 00 00 00 00 00 00   .....~..........
+|   3488: 00 00 00 00 22 07 06 17 11 11 01 31 74 61 62 6c   ...........1tabl
+|   3504: 65 74 32 74 32 07 43 52 45 41 54 45 20 54 41 42   et2t2.CREATE TAB
+|   3520: 4c 45 20 74 32 28 78 29 81 33 05 07 17 1f 1f 01   LE t2(x).3......
+|   3536: 82 35 74 61 62 6c 65 74 31 5f 73 65 67 64 69 72   .5tablet1_segdir
+|   3552: 74 31 5f 73 65 67 64 69 72 05 43 52 45 41 54 45   t1_segdir.CREATE
+|   3568: 20 54 41 42 4c 45 20 27 74 31 5f 73 65 67 64 69    TABLE 't1_segdi
+|   3584: 72 27 28 6c 65 76 65 6c 20 49 4e 54 45 47 45 52   r'(level INTEGER
+|   3600: 2c 69 64 78 20 49 4e 54 45 47 45 52 2c 73 74 61   ,idx INTEGER,sta
+|   3616: 72 74 5f 62 6c 6f 63 6b 20 49 4e 54 45 47 45 52   rt_block INTEGER
+|   3632: 2c 6c 65 61 76 65 73 5f 65 6e 64 5f 62 6c 6f 63   ,leaves_end_bloc
+|   3648: 6b 20 49 4e 54 45 47 45 52 2c 65 6e 64 5f 62 6c   k INTEGER,end_bl
+|   3664: 6f 63 6b 20 49 4e 54 45 47 45 52 2c 72 6f 6f 74   ock INTEGER,root
+|   3680: 20 42 4c 4f 42 2c 50 52 49 4d 41 52 59 20 4b 45    BLOB,PRIMARY KE
+|   3696: 59 28 6c 65 76 65 6c 2c 20 69 64 78 29 29 31 06   Y(level, idx))1.
+|   3712: 06 17 45 1f 01 00 69 6e 64 65 78 73 71 6c 69 74   ..E...indexsqlit
+|   3728: 65 5f 61 75 74 6f 69 6e 64 65 78 5f 74 31 5f 73   e_autoindex_t1_s
+|   3744: 65 67 64 69 72 5f 31 74 31 5f 73 65 67 64 69 72   egdir_1t1_segdir
+|   3760: 06 0f c7 00 08 00 00 00 00 66 04 07 17 23 23 01   .........f...##.
+|   3776: 81 13 74 61 62 6c 65 74 31 5f 73 65 67 6d 65 6e   ..tablet1_segmen
+|   3792: 74 73 74 31 5f 73 65 67 6d 65 6e 74 73 04 43 52   tst1_segments.CR
+|   3808: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 73   EATE TABLE 't1_s
+|   3824: 65 67 6d 65 6e 74 73 27 28 62 6c 6f 63 6b 69 64   egments'(blockid
+|   3840: 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59    INTEGER PRIMARY
+|   3856: 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42    KEY, block BLOB
+|   3872: 29 6a 03 07 17 21 21 01 81 1f 74 61 62 6c 65 74   )j...!!...tablet
+|   3888: 31 5f 63 6f 6e 74 65 6e 74 74 31 5f 63 6f 6e 74   1_contentt1_cont
+|   3904: 65 6e 74 03 43 52 45 41 54 45 20 54 41 42 4c 45   ent.CREATE TABLE
+|   3920: 20 27 74 31 5f 63 6f 6e 74 65 6e 74 27 28 64 6f    't1_content'(do
+|   3936: 63 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   cid INTEGER PRIM
+|   3952: 41 52 59 30 4b 45 59 2c 20 27 63 30 61 27 2c 20   ARY0KEY, 'c0a', 
+|   3968: 27 63 31 62 27 2c 20 27 63 32 63 27 29 38 02 06   'c1b', 'c2c')8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 33   LE t1 USING fts3
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 39 00 00 00 00 00   (a,b,c)...9.....
+| page 3 offset 8192
+|      0: 0d 00 00 00 25 0b 48 00 0f d8 0f af 0f 86 0f 74   ....%.H........t
+|     16: 0f 61 0f 4e 0f 2f 0f 0f 0e ef 0e d7 0e be 0e a5   .a.N./..........
+|     32: 0e 8d 0e 74 0e 5b 0e 40 0e 24 0e 08 0d ef 0d d5   ...t.[.@.$......
+|     48: 0d bb 0d a0 0d 84 0d 68 0d 4f 0d 35 0d 1b 0c fb   .......h.O.5....
+|     64: 0c da 0c b9 0c 99 0c 78 0c 57 0c 3e 0c 24 0c 0a   .......x.W.>.$..
+|     80: 0b 48 00 00 00 00 00 00 00 00 00 00 00 00 00 00   .H..............
+|   2880: 00 00 00 00 00 00 00 00 81 3f 25 06 00 82 7f 00   .........?%.....
+|   2896: 00 43 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e   .COMPILER=gcc-5.
+|   2912: 34 2e 30 20 32 30 31 36 30 36 30 39 20 44 45 42   4.0 20160609 DEB
+|   2928: 55 47 20 45 4e 41 42 4c 45 20 44 42 53 54 41 54   UG ENABLE DBSTAT
+|   2944: 20 56 54 41 42 20 45 4e 41 42 4c 45 20 46 54 53    VTAB ENABLE FTS
+|   2960: 34 20 45 4e 41 42 4c 45 20 46 54 53 35 20 45 4e   4 ENABLE FTS5 EN
+|   2976: 41 42 4c 45 20 47 45 4f 50 4f 4c 59 20 45 4e 41   ABLE GEOPOLY ENA
+|   2992: 42 4c 45 20 4a 53 4f 4e 31 20 45 4e 41 42 4c 45   BLE JSON1 ENABLE
+|   3008: 20 4d 45 4d 53 59 53 35 20 45 4e 41 42 4c 45 1f    MEMSYS5 ENABLE.
+|   3024: 52 54 52 45 45 20 4d 41 58 20 4d 45 4d 4f 52 59   RTREE MAX MEMORY
+|   3040: 3d 35 30 30 30 30 30 30 30 20 4f 4d 49 54 20 4c   =50000000 OMIT L
+|   3056: 4f 41 44 20 45 58 54 45 4e 53 49 4f 4e 20 54 48   OAD EXTENSION TH
+|   3072: 52 45 41 44 53 41 46 45 3d 30 18 24 05 00 25 0f   READSAFE=0.$..%.
+|   3088: 19 54 48 52 45 41 44 53 41 46 45 3d 30 58 42 49   .THREADSAFE=0XBI
+|   3104: 4e 41 52 59 18 23 05 00 25 0f 19 54 48 52 45 41   NARY.#..%..THREA
+|   3120: 44 53 41 46 45 3d 30 58 4e 4f 43 41 53 45 17 22   DSAFE=0XNOCASE..
+|   3136: 05 00 25 0f 17 54 48 52 45 41 44 53 41 46 45 3d   ..%..THREADSAFE=
+|   3152: 30 58 52 54 52 49 4d 1f 21 05 00 33 0f 19 4f 4d   0XRTRIM.!..3..OM
+|   3168: 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49 4f   IT LOAD EXTENSIO
+|   3184: 4e 58 43 49 4e 41 52 59 1f 20 05 00 33 0f 19 4f   NXCINARY. ..3..O
+|   3200: 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49   MIT LOAD EXTENSI
+|   3216: 4f 4e 58 4e 4f 43 41 53 45 1e 1f 05 00 33 0f 17   ONXNOCASE....3..
+|   3232: 4f 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53   OMIT LOAD EXTENS
+|   3248: 49 4f 4e 58 52 54 52 49 4d 1f 1e 05 00 33 0f 19   IONXRTRIM....3..
+|   3264: 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30 30   MAX MEMORY=50000
+|   3280: 30 30 30 58 42 49 4e 41 52 59 1f 1d 05 00 33 0f   000XBINARY....3.
+|   3296: 19 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30   .MAX MEMORY=5000
+|   3312: 30 30 30 30 58 4e 4f 43 41 53 45 1e 1c 05 00 33   0000XNOCASE....3
+|   3328: 0f 17 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30   ..MAX MEMORY=500
+|   3344: 30 30 30 30 30 58 52 54 52 49 4d 18 1b 05 00 25   00000XRTRIM....%
+|   3360: 0f 19 45 4e 41 42 4c 45 20 52 54 52 45 45 58 42   ..ENABLE RTREEXB
+|   3376: 49 4e 41 52 59 18 1a 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3392: 4c 45 20 52 54 52 45 45 58 4e 4f 43 41 53 45 17   LE RTREEXNOCASE.
+|   3408: 19 05 00 25 0f 17 45 4e 41 42 4c 45 20 52 54 52   ...%..ENABLE RTR
+|   3424: 45 45 58 52 54 52 49 4d 1a 18 05 00 29 0f 19 45   EEXRTRIM....)..E
+|   3440: 4e 41 42 4c 45 20 4d 45 4d 53 59 53 35 58 42 49   NABLE MEMSYS5XBI
+|   3456: 4e 41 52 59 1a 17 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3472: 45 20 4d 45 4d 53 59 53 35 58 4e 4f 43 41 53 45   E MEMSYS5XNOCASE
+|   3488: 19 16 05 00 29 0f 17 45 4e 41 42 4c 45 20 4d 45   ....)..ENABLE ME
+|   3504: 4d 53 59 53 35 58 52 54 52 49 4d 18 15 09 00 25   MSYS5XRTRIM....%
+|   3520: 0f 19 45 4e 41 42 4c 45 20 4a 53 4f 4e 31 58 42   ..ENABLE JSON1XB
+|   3536: 49 4e 41 52 59 18 14 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3552: 4c 45 20 4a 53 4f 4e 31 58 4e 4f 43 41 53 45 17   LE JSON1XNOCASE.
+|   3568: 13 05 00 25 0f 17 45 4e 41 42 4c 45 20 4a 53 4f   ...%..ENABLE JSO
+|   3584: 4e 31 58 52 54 52 49 4d 1a 12 05 00 29 0f 19 45   N1XRTRIM....)..E
+|   3600: 4e 41 42 4c 45 20 47 45 4f 50 4f 4c 59 58 42 49   NABLE GEOPOLYXBI
+|   3616: 4e 41 52 59 1a 11 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3632: 45 20 47 45 4f 50 4f 4c 59 58 4e 4f 43 41 53 45   E GEOPOLYXNOCASE
+|   3648: 19 10 05 00 29 0f 17 45 4e 41 42 4c 46 20 47 45   ....)..ENABLF GE
+|   3664: 4f 50 4f 4c 59 58 52 54 52 49 4d 17 0f 05 00 23   OPOLYXRTRIM....#
+|   3680: 0f 19 45 4e 41 42 4c 45 20 46 54 53 35 58 42 49   ..ENABLE FTS5XBI
+|   3696: 4e 41 52 59 17 0e 05 00 23 0f 19 45 4e 41 42 4c   NARY....#..ENABL
+|   3712: 45 20 46 54 53 35 58 4e 4f 43 41 53 45 16 0d 05   E FTS5XNOCASE...
+|   3728: 00 23 0f 17 45 4e 41 42 4c 45 20 46 54 53 35 58   .#..ENABLE FTS5X
+|   3744: 52 54 52 49 4d 17 0c 05 00 23 0f 19 45 4e 41 42   RTRIM....#..ENAB
+|   3760: 4c 45 20 46 54 53 34 58 42 49 4e 41 52 59 17 0b   LE FTS4XBINARY..
+|   3776: 05 00 23 0f 19 45 4e 41 42 4c 45 20 46 54 53 34   ..#..ENABLE FTS4
+|   3792: 58 4e 4f 43 41 53 45 16 0a 05 00 23 0f 17 45 4e   XNOCASE....#..EN
+|   3808: 41 42 4c 45 20 46 54 53 34 58 52 54 52 49 4d 1e   ABLE FTS4XRTRIM.
+|   3824: 09 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3840: 54 41 54 20 56 54 41 42 58 42 49 4e 41 52 59 1e   TAT VTABXBINARY.
+|   3856: 08 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3872: 54 41 54 20 56 54 41 42 58 4e 4f 43 41 53 45 1d   TAT VTABXNOCASE.
+|   3888: 07 05 00 31 0f 17 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3904: 54 41 54 20 56 54 41 42 58 52 54 52 49 4d 11 06   TAT VTABXRTRIM..
+|   3920: 05 00 17 0f 19 44 45 42 55 47 58 42 49 4e 41 52   .....DEBUGXBINAR
+|   3936: 59 11 05 05 00 17 0f 19 44 45 42 55 47 58 4e 4f   Y.......DEBUGXNO
+|   3952: 43 41 53 45 10 04 05 00 17 0f 17 44 45 42 55 47   CASE.......DEBUG
+|   3968: 58 52 54 52 49 4d 27 03 05 00 43 0f 19 43 4f 4d   XRTRIM'...C..COM
+|   3984: 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e 30 20   PILER=gcc-5.4.0 
+|   4000: 32 30 31 36 30 36 30 39 58 42 49 4e 41 52 59 27   20160609XBINARY'
+|   4016: 02 05 00 43 0f 19 43 4f 4d 50 49 4c 45 52 3d 67   ...C..COMPILER=g
+|   4032: 63 63 2d 35 2e 34 2e 30 20 32 30 31 36 30 36 30   cc-5.4.0 2016060
+|   4048: 39 58 4e 4f 43 41 53 45 26 01 05 00 43 0f 17 43   9XNOCASE&...C..C
+|   4064: 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e   OMPILER=gcc-5.4.
+|   4080: 30 20 32 30 31 36 30 36 30 39 58 52 54 52 49 4d   0 20160609XRTRIM
+| page 4 offset 12288
+|      0: 0d 00 00 00 00 10 00 00 00 00 00 00 00 00 00 00   ................
+| page 5 offset 16384
+|      0: 0d 00 00 00 02 0b a0 00 0c ad 0b a0 00 00 00 00   ................
+|   2976: 82 0a 02 08 08 09 08 08 17 84 06 30 20 32 35 33   ...........0 253
+|   2992: 00 01 30 04 25 06 1b 00 00 08 32 30 31 36 30 36   ..0.%.....201606
+|   3008: 30 39 03 25 07 00 00 01 34 03 25 05 00 00 01 35   09.%....4.%....5
+|   3024: 03 25 04 00 01 07 30 30 30 30 30 30 30 03 25 1a   .%....0000000.%.
+|   3040: 00 00 08 63 6f 6d 70 69 6c 65 72 03 25 02 00 00   ...compiler.%...
+|   3056: 06 64 62 73 74 61 74 03 25 0a 00 01 04 65 62 75   .dbstat.%....ebu
+|   3072: 67 03 25 08 00 00 06 65 6e 61 62 6c 65 09 25 09   g.%....enable.%.
+|   3088: 05 04 04 04 04 04 00 01 08 78 74 65 6e 73 69 6f   .........xtensio
+|   3104: 6e 03 25 1d 00 00 04 66 74 73 34 03 25 0d 00 03   n.%....fts4.%...
+|   3120: 01 35 03 25 0f 00 00 03 67 63 63 03 25 03 00 01   .5.%....gcc.%...
+|   3136: 06 65 6f 70 6f 6c 79 03 25 11 00 00 05 6a 73 6f   .eopoly.%....jso
+|   3152: 6e 31 03 25 13 00 00 04 6c 6f 61 64 03 25 1c 00   n1.%....load.%..
+|   3168: 00 03 6d 61 78 03 25 18 00 01 05 65 6d 6f 72 79   ..max.%....emory
+|   3184: 03 25 19 00 03 04 73 79 73 35 03 25 15 00 00 04   .%....sys5.%....
+|   3200: 6f 6d 69 74 03 25 1b 00 00 05 72 74 72 65 65 03   omit.%....rtree.
+|   3216: 25 17 00 00 0a 74 68 72 65 61 64 73 61 66 65 03   %....threadsafe.
+|   3232: 25 1e 00 00 04 76 74 61 62 03 25 0b 00 86 50 01   %....vtab.%...P.
+|   3248: 08 08 08 08 09 17 8d 12 30 20 38 33 35 00 01 30   ........0 835..0
+|   3264: 12 01 06 00 01 06 00 01 06 00 1f 03 00 01 03 00   ................
+|   3280: 01 03 00 00 08 32 30 31 36 30 36 30 39 09 01 07   .....20160609...
+|   3296: 00 01 07 00 01 07 00 00 01 34 09 01 05 00 01 05   .........4......
+|   3312: 00 01 05 00 00 01 35 09 01 04 00 01 04 00 01 04   ......5.........
+|   3328: 00 01 07 30 30 30 30 30 30 30 09 1c 04 00 01 04   ...0000000......
+|   3344: 00 01 04 00 00 06 62 69 6e 61 72 79 3c 03 01 02   ......binary<...
+|   3360: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3376: 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00   ................
+|   3392: 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03   ................
+|   3408: 01 02 02 00 03 01 02 02 00 00 08 63 6f 6d 70 69   ...........compi
+|   3424: 6c 65 72 09 01 02 00 01 02 00 01 02 00 00 06 64   ler............d
+|   3440: 62 73 74 61 74 09 07 03 00 01 03 00 01 03 00 01   bstat...........
+|   3456: 04 65 62 75 67 09 04 02 00 01 02 00 01 02 00 00   .ebug...........
+|   3472: 06 65 6e 61 62 6c 65 3f 07 02 00 01 02 00 01 02   .enable?........
+|   3488: 00 01 02 00 01 02 00 01 02 00 01 02 00 01 02 00   ................
+|   3504: 01 02 00 01 02 00 01 02 00 01 02 00 01 02 00 01   ................
+|   3520: 02 00 01 02 00 01 02 00 01 02 00 01 02 00 01 02   ................
+|   3536: 00 01 02 00 01 02 00 01 08 78 74 65 6e 73 69 6f   .........xtensio
+|   3552: 6e 09 1f 04 00 01 04 00 01 04 00 00 04 66 74 73   n............fts
+|   3568: 34 09 0a 03 00 01 03 00 01 03 00 03 01 35 09 0d   4............5..
+|   3584: 03 00 01 03 00 01 03 00 00 03 67 63 63 09 01 03   ..........gcc...
+|   3600: 00 01 03 00 01 03 00 01 06 65 6f 70 6f 6c 79 09   .........eopoly.
+|   3616: 10 03 00 01 03 00 01 03 00 00 05 6a 73 6f 6e 31   ...........json1
+|   3632: 09 13 03 00 01 03 00 01 03 00 00 04 6c 6f 61 64   ............load
+|   3648: 09 1f 03 00 01 03 00 01 03 00 00 03 6d 61 78 09   ............max.
+|   3664: 1c 02 00 01 02 00 01 02 00 01 05 65 6d 6f 72 79   ...........emory
+|   3680: 09 1c 03 00 01 03 00 01 03 00 03 04 73 79 73 35   ............sys5
+|   3696: 09 16 03 00 01 03 00 01 03 00 00 06 6e 6f 63 61   ............noca
+|   3712: 73 65 3c 02 01 02 02 00 03 01 02 02 00 03 01 02   se<.............
+|   3728: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3744: 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00   ................
+|   3760: 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00 00   ................
+|   3776: 04 6f 6d 69 74 09 1f 02 00 01 02 00 01 02 00 00   .omit...........
+|   3792: 05 72 74 72 65 65 09 19 03 00 01 03 00 01 03 00   .rtree..........
+|   3808: 03 02 69 6d 3c 01 01 02 02 00 03 01 02 02 00 03   ..im<...........
+|   3824: 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01   ................
+|   3840: 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02   ................
+|   3856: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3872: 00 00 0a 74 68 72 65 61 64 73 61 66 65 09 22 02   ...threadsafe...
+|   3888: 00 01 02 00 02 02 00 00 04 76 74 61 62 09 07 04   .........vtab...
+|   3904: 00 01 04 00 01 04 00 00 01 78 b4 01 01 01 01 02   .........x......
+|   3920: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+|   3936: 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01   ................
+|   3952: 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01   ................
+|   3968: 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01   ................
+|   3984: 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02   ................
+|   4000: 10 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+|   4016: 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01   ................
+|   4032: 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01   ................
+|   4048: 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01   ................
+|   4064: 02 00 01 01 02 02 00 01 01 01 02 00 01 01 01 02   ................
+|   4080: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 02 0f f5 00 0f fb 0f f5 00 00 00 00   ................
+|   4080: 00 00 00 00 00 05 04 08 09 01 02 04 04 08 08 09   ................
+| page 7 offset 24576
+|      0: 0d 00 00 00 05 0f b8 00 0f f4 0f e9 0f d6 0f c7   ................
+|     16: 0f b8 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 0d 05 02 23 61 75 74 6f   ...........#auto
+|   4032: 6d 65 72 67 65 3d 35 0d 04 02 23 6d 65 72 67 65   merge=5...#merge
+|   4048: 3d 31 30 30 2c 38 11 03 02 2b 69 6e 74 65 67 72   =100,8...+integr
+|   4064: 69 74 79 2d 63 68 65 63 6b 09 02 02 1b 72 65 62   ity-check....reb
+|   4080: 75 69 6c 64 0a 01 02 1d 6f 70 74 69 6d 69 7a 65   uild....optimize
+| end crash-c3a971f0061039.db
+}]} {}
+
+do_catchsql_test 10.1 {
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<100)
+    INSERT OR IGNORE INTO t1(a,c) SELECT x,null FROM c
+    UNION ALL SELECT 180-x,printf('[%,d]',x*-5844627) FROM c;
+} {0 {}}
+
+do_catchsql_test 10.3 {
+  INSERT INTO t1(t1) VALUES('optimize');
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 11.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 28672 pagesize 4096 filename crash-843cb8447eaf14.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 07   .....@  ........
+|     32: 00 00 00 02 00 00 00 01 00 00 00 07 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 0e b1 00 06 0d a4 00 0f 8d 0f 21   ...............!
+|    112: 0e b9 0d c8 0e 7e 0d a4 0d a4 00 00 00 00 00 00   .....~..........
+|   3488: 00 00 00 00 22 07 06 17 11 11 01 31 74 61 62 6c   ...........1tabl
+|   3504: 65 74 32 74 32 07 43 52 45 41 54 45 20 54 41 42   et2t2.CREATE TAB
+|   3520: 4c 45 20 74 32 28 78 29 81 33 05 07 17 1f 1f 01   LE t2(x).3......
+|   3536: 82 35 74 61 62 6c 65 74 31 5f 73 65 67 64 69 72   .5tablet1_segdir
+|   3552: 74 31 5f 73 65 67 64 69 72 05 43 52 45 41 54 45   t1_segdir.CREATE
+|   3568: 20 54 41 42 4c 45 20 27 74 31 5f 73 65 67 64 69    TABLE 't1_segdi
+|   3584: 72 27 28 6c 65 76 65 6c 20 49 4e 54 45 47 45 52   r'(level INTEGER
+|   3600: 2c 69 64 78 20 49 4e 54 45 47 45 52 2c 73 74 61   ,idx INTEGER,sta
+|   3616: 72 74 5f 62 6c 6f 63 6b 20 49 4e 54 45 47 45 52   rt_block INTEGER
+|   3632: 2c 6c 65 61 76 65 73 5f 65 6e 64 5f 62 6c 6f 63   ,leaves_end_bloc
+|   3648: 6b 20 49 4e 54 45 47 45 52 2c 65 6e 64 5f 62 6c   k INTEGER,end_bl
+|   3664: 6f 63 6b 20 49 4e 54 45 47 45 52 2c 72 6f 6f 74   ock INTEGER,root
+|   3680: 20 42 4c 4f 42 2c 50 52 49 4d 41 52 59 20 4b 45    BLOB,PRIMARY KE
+|   3696: 59 28 6c 65 76 65 6c 2c 20 69 64 78 29 29 31 06   Y(level, idx))1.
+|   3712: 06 17 45 1f 01 00 69 6e 64 65 78 73 71 6c 69 74   ..E...indexsqlit
+|   3728: 65 5f 61 75 74 6f 69 6e 64 65 78 5f 74 31 5f 73   e_autoindex_t1_s
+|   3744: 65 67 64 69 72 5f 31 74 31 5f 73 65 67 64 69 72   egdir_1t1_segdir
+|   3760: 06 0f c7 00 08 00 00 00 00 66 04 07 17 23 23 01   .........f...##.
+|   3776: 81 13 74 61 62 6c 65 74 31 5f 73 65 67 6d 65 6e   ..tablet1_segmen
+|   3792: 74 73 74 31 5f 73 65 67 6d 65 6e 74 73 04 43 52   tst1_segments.CR
+|   3808: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 73   EATE TABLE 't1_s
+|   3824: 65 67 6d 65 6e 74 73 27 28 62 6c 6f 63 6b 69 64   egments'(blockid
+|   3840: 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59    INTEGER PRIMARY
+|   3856: 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42    KEY, block BLOB
+|   3872: 29 6a 03 07 17 21 21 01 81 1f 74 61 62 6c 65 74   )j...!!...tablet
+|   3888: 31 5f 63 6f 6e 74 65 6e 74 74 31 5f 63 6f 6e 74   1_contentt1_cont
+|   3904: 65 6e 74 03 43 52 45 41 54 45 20 54 41 42 4c 45   ent.CREATE TABLE
+|   3920: 20 27 74 31 5f 63 6f 6e 74 65 6e 74 27 28 64 6f    't1_content'(do
+|   3936: 63 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   cid INTEGER PRIM
+|   3952: 41 52 59 20 4b 45 59 2c 20 27 63 30 61 27 2c 20   ARY KEY, 'c0a', 
+|   3968: 27 63 31 62 27 2c 20 27 63 32 63 27 29 38 02 06   'c1b', 'c2c')8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 33   LE t1 USING fts3
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 39 00 00 00 00 00   (a,b,c)...9.....
+| page 3 offset 8192
+|      0: 0d 00 00 00 25 0b 48 00 0f d8 0f af 0f 86 0f 74   ....%.H........t
+|     16: 0f 61 0f 4e 0f 2f 0f 0f 0e ef 0e d7 0e be 0e a5   .a.N./..........
+|     32: 0e 8d 0e 74 0e 5b 0e 40 0e 24 0e 08 0d ef 0d d4   ...t.[.@.$......
+|     48: dd bb 0d a0 0d 84 0d 68 0d 4f 0d 35 0d 1b 0c fb   .......h.O.5....
+|     64: 0c da 0c b9 35 99 0c 78 0c 57 0c 3e 0c 24 0c 0a   ....5..x.W.>.$..
+|     80: 0b 48 00 00 00 00 00 00 00 00 00 00 00 00 00 00   .H..............
+|   2880: 00 00 00 00 00 00 00 00 81 3f 25 06 00 82 7f 00   .........?%.....
+|   2896: 00 43 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e   .COMPILER=gcc-5.
+|   2912: 34 2e 30 20 32 30 31 36 30 36 30 39 20 44 45 42   4.0 20160609 DEB
+|   2928: 55 47 20 45 4e 41 42 4c 45 20 44 42 53 54 41 54   UG ENABLE DBSTAT
+|   2944: 20 56 54 41 42 20 45 4e 41 42 4c 45 20 46 54 53    VTAB ENABLE FTS
+|   2960: 34 20 45 4e 41 42 4c 45 20 46 54 53 35 20 45 4e   4 ENABLE FTS5 EN
+|   2976: 41 42 4c 45 20 47 45 4f 50 4f 4c 59 20 45 4e 41   ABLE GEOPOLY ENA
+|   2992: 42 4c 45 20 4a 53 4f 4e 31 20 45 4e 41 42 4c 45   BLE JSON1 ENABLE
+|   3008: 20 4d 45 4d 53 59 53 35 20 45 4e 41 42 4c 45 20    MEMSYS5 ENABLE 
+|   3024: 52 54 52 45 45 20 4d 41 58 20 4d 45 4d 4f 52 59   RTREE MAX MEMORY
+|   3040: 3d 35 30 30 30 30 30 30 30 20 4f 4d 49 54 20 4c   =50000000 OMIT L
+|   3056: 4f 41 44 20 45 58 54 45 4e 53 49 4f 4e 20 54 48   OAD EXTENSION TH
+|   3072: 52 45 41 44 53 41 46 45 3d 30 18 24 05 00 25 0f   READSAFE=0.$..%.
+|   3088: 19 54 48 52 45 41 44 53 41 46 45 3d 30 58 42 49   .THREADSAFE=0XBI
+|   3104: 4e 41 52 59 18 23 05 00 25 0f 19 54 48 52 45 41   NARY.#..%..THREA
+|   3120: 44 53 41 46 45 3d 30 58 4e 4f 43 41 53 45 17 22   DSAFE=0XNOCASE..
+|   3136: 05 00 25 0f 17 54 48 52 45 41 44 53 41 46 45 3d   ..%..THREADSAFE=
+|   3152: 30 58 52 54 52 49 4d 1f 21 05 00 33 0f 19 4f 4d   0XRTRIM.!..3..OM
+|   3168: 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49 4f   IT LOAD EXTENSIO
+|   3184: 4e 58 42 49 4e 41 52 59 1f 20 05 00 33 0f 19 4f   NXBINARY. ..3..O
+|   3200: 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49   MIT LOAD EXTENSI
+|   3216: 4f 4e 58 4e 4f 43 41 53 45 1e 1f 05 00 33 0f 17   ONXNOCASE....3..
+|   3232: 4f 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53   OMIT LOAD EXTENS
+|   3248: 49 4f 4e 58 52 54 52 49 4d 1f 1e 05 00 33 0f 19   IONXRTRIM....3..
+|   3264: 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30 30   MAX MEMORY=50000
+|   3280: 30 30 30 58 42 49 4e 41 52 59 1f 1d 05 00 33 0f   000XBINARY....3.
+|   3296: 19 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30   .MAX MEMORY=5000
+|   3312: 30 30 30 30 58 4e 4f 43 41 53 45 1e 1c 05 00 33   0000XNOCASE....3
+|   3328: 0f 17 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30   ..MAX MEMORY=500
+|   3344: 30 30 30 30 30 58 52 54 52 49 4d 18 1b 05 00 25   00000XRTRIM....%
+|   3360: 0f 19 45 4e 41 42 4c 45 20 52 54 52 45 45 58 42   ..ENABLE RTREEXB
+|   3376: 49 4e 41 52 59 18 1a 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3392: 4c 45 20 52 54 52 45 45 58 4e 4f 43 41 53 45 17   LE RTREEXNOCASE.
+|   3408: 19 05 00 25 0f 17 45 4e 41 42 4c 45 20 52 54 52   ...%..ENABLE RTR
+|   3424: 45 45 58 52 54 52 49 4d 1a 18 05 00 29 0f 19 45   EEXRTRIM....)..E
+|   3440: 4e 41 42 4c 45 20 4d 45 4d 53 59 53 35 58 42 49   NABLE MEMSYS5XBI
+|   3456: 4e 41 52 59 1a 17 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3472: 45 20 4d 45 4d 53 59 53 35 58 4e 4f 43 41 53 45   E MEMSYS5XNOCASE
+|   3488: 19 16 05 00 29 0f 17 45 4e 41 42 4c 45 20 4d 45   ....)..ENABLE ME
+|   3504: 4d 53 59 53 35 58 52 54 52 49 4d 18 15 05 00 25   MSYS5XRTRIM....%
+|   3520: 0f 19 45 4e 41 42 4c 45 20 4a 53 4f 4e 31 58 42   ..ENABLE JSON1XB
+|   3536: 49 4e 41 52 59 18 14 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3552: 4c 45 20 4a 53 4f 4e 31 58 4e 4f 43 41 53 45 17   LE JSON1XNOCASE.
+|   3568: 13 05 00 25 0f 17 45 4e 41 42 4c 45 20 4a 53 4f   ...%..ENABLE JSO
+|   3584: 4e 31 58 52 54 52 49 4d 1a 12 05 00 29 0f 19 45   N1XRTRIM....)..E
+|   3600: 4e 41 42 4c 45 20 47 45 4f 50 4f 4c 59 58 42 49   NABLE GEOPOLYXBI
+|   3616: 4e 41 52 59 1a 11 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3632: 45 20 47 45 4f 50 4f 4c 59 58 4e 4f 43 41 53 45   E GEOPOLYXNOCASE
+|   3648: 19 10 05 00 29 0f 17 45 4e 41 42 4c 45 20 47 45   ....)..ENABLE GE
+|   3664: 4f 50 4f 4c 59 58 52 54 52 49 4d 17 0f 05 00 23   OPOLYXRTRIM....#
+|   3680: 0f 19 45 4e 41 42 4c 45 20 46 54 53 35 58 42 49   ..ENABLE FTS5XBI
+|   3696: 4e 41 52 59 17 0e 05 00 23 0f 19 45 4e 41 42 4c   NARY....#..ENABL
+|   3712: 45 20 46 54 53 35 58 4e 4f 43 41 53 45 16 0d 05   E FTS5XNOCASE...
+|   3728: 00 23 0f 17 45 4e 41 42 4c 45 20 46 54 53 35 58   .#..ENABLE FTS5X
+|   3744: 52 54 52 49 4d 17 0c 05 00 23 0f 19 45 4e 41 42   RTRIM....#..ENAB
+|   3760: 4c 45 20 46 54 53 34 58 42 49 4e 41 52 59 17 0b   LE FTS4XBINARY..
+|   3776: 05 00 23 0f 19 45 4e 41 42 4c 45 20 46 54 53 34   ..#..ENABLE FTS4
+|   3792: 58 4e 4f 43 41 53 45 16 0a 05 00 23 0f 17 45 4e   XNOCASE....#..EN
+|   3808: 41 42 4c 45 20 46 54 53 34 58 52 54 52 49 4d 1e   ABLE FTS4XRTRIM.
+|   3824: 09 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3840: 54 41 54 20 56 54 41 42 58 42 49 4e 41 52 59 1e   TAT VTABXBINARY.
+|   3856: 08 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3872: 54 41 54 20 56 54 41 42 58 4e 4f 43 41 53 45 1d   TAT VTABXNOCASE.
+|   3888: 07 05 00 31 0f 17 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3904: 54 41 54 20 56 54 41 42 58 52 54 52 49 4d 11 06   TAT VTABXRTRIM..
+|   3920: 05 00 17 0f 19 44 45 42 55 47 58 42 49 4e 41 52   .....DEBUGXBINAR
+|   3936: 59 11 05 05 00 17 0f 19 44 45 42 55 47 58 4e 4f   Y.......DEBUGXNO
+|   3952: 43 41 53 45 10 04 05 00 17 0f 17 44 45 42 55 47   CASE.......DEBUG
+|   3968: 58 52 54 52 49 4d 27 03 05 00 43 0f 19 43 4f 4d   XRTRIM'...C..COM
+|   3984: 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e 30 20   PILER=gcc-5.4.0 
+|   4000: 32 30 31 36 30 36 30 39 58 42 49 4e 41 52 59 27   20160609XBINARY'
+|   4016: 02 05 00 43 0f 19 43 4f 4d 50 49 4c 45 52 3d 67   ...C..COMPILER=g
+|   4032: 63 63 2d 35 2e 34 2e 30 20 32 30 31 36 30 36 30   cc-5.4.0 2016060
+|   4048: 39 58 4e 4f 43 41 53 45 26 01 05 00 43 0f 17 43   9XNOCASE&...C..C
+|   4064: 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e   OMPILER=gcc-5.4.
+|   4080: 30 20 32 30 31 36 30 36 30 39 58 52 54 52 49 4d   0 20160609XRTRIM
+| page 4 offset 12288
+|      0: 0d 00 00 00 00 10 00 00 00 00 00 00 00 00 00 00   ................
+| page 5 offset 16384
+|      0: 0d 00 00 00 02 0b a0 00 0c ad 0b a0 00 00 00 00   ................
+|   2976: 82 0a 02 08 08 09 08 08 17 84 06 30 20 32 35 33   ...........0 253
+|   2992: 00 01 30 04 25 06 1b 00 00 08 32 30 31 36 30 36   ..0.%.....201606
+|   3008: 30 39 03 25 07 00 00 01 34 03 25 05 00 00 01 35   09.%....4.%....5
+|   3024: 03 25 04 00 01 07 30 30 30 30 30 30 30 03 25 1a   .%....0000000.%.
+|   3040: 00 00 08 63 6f 6d 70 69 6c 65 72 03 25 02 00 00   ...compiler.%...
+|   3056: 06 64 62 73 74 61 74 03 25 0a 00 01 04 65 62 75   .dbstat.%....ebu
+|   3072: 67 03 25 08 00 00 06 65 6e 61 62 6c 65 09 25 09   g.%....enable.%.
+|   3088: 05 04 04 04 04 04 00 01 08 78 74 65 6e 73 69 6f   .........xtensio
+|   3104: 6e 03 25 1d 00 00 04 66 74 73 34 03 25 0d 00 03   n.%....fts4.%...
+|   3120: 01 35 03 25 0f 00 00 03 67 63 63 03 25 03 00 01   .5.%....gcc.%...
+|   3136: 06 65 6f 70 6f 6c 79 03 25 11 00 00 05 6a 73 6f   .eopoly.%....jso
+|   3152: 6e 31 03 25 13 00 00 04 6c 6f 61 64 03 25 1c 00   n1.%....load.%..
+|   3168: 00 03 6d 61 78 03 25 18 00 01 05 65 6d 6f 72 79   ..max.%....emory
+|   3184: 03 25 19 00 03 04 73 79 73 35 03 25 15 00 00 04   .%....sys5.%....
+|   3200: 6f 6d 69 74 03 25 1b 00 00 05 72 74 72 65 65 03   omit.%....rtree.
+|   3216: 25 17 00 00 0a 74 68 72 65 61 64 73 61 66 65 03   %....threadsafe.
+|   3232: 25 1e 00 00 04 76 74 61 62 03 25 0b 00 86 50 01   %....vtab.%...P.
+|   3248: 08 08 08 08 08 17 8d 12 30 20 38 33 35 00 01 30   ........0 835..0
+|   3264: 12 01 06 00 01 06 00 01 06 00 1f 03 00 01 03 00   ................
+|   3280: 01 03 00 00 08 32 30 31 36 30 36 30 39 09 01 07   .....20160609...
+|   3296: 00 01 07 00 01 07 00 00 01 34 09 01 05 00 01 05   .........4......
+|   3312: 00 01 05 00 00 01 35 09 01 04 00 01 04 00 01 04   ......5.........
+|   3328: 00 01 07 30 30 30 30 30 30 30 09 1c 04 00 01 04   ...0000000......
+|   3344: 00 01 04 00 00 06 62 69 6e 61 72 79 3c 03 01 02   ......binary<...
+|   3360: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3376: 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00   ................
+|   3392: 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03   ................
+|   3408: 01 02 02 00 03 01 02 02 00 00 08 63 6f 6d 70 69   ...........compi
+|   3424: 6c 65 72 09 01 02 00 01 02 00 01 02 00 00 06 64   ler............d
+|   3440: 62 73 74 61 74 09 07 03 00 01 03 00 01 03 00 01   bstat...........
+|   3456: 04 65 62 75 67 09 04 02 00 01 02 00 01 02 00 00   .ebug...........
+|   3472: 06 65 6e 61 62 6c 65 3f 07 02 00 01 02 00 01 02   .enable?........
+|   3488: 00 01 02 00 01 02 00 01 02 00 01 02 00 01 02 00   ................
+|   3504: 01 02 00 01 02 00 01 02 00 01 02 00 01 01 00 01   ................
+|   3520: 02 00 01 02 00 01 02 00 01 02 00 01 02 00 01 02   ................
+|   3536: 00 01 02 00 01 02 00 01 08 78 74 65 6e 73 69 6f   .........xtensio
+|   3552: 6e 09 1f 04 00 01 04 00 01 04 00 00 04 66 74 73   n............fts
+|   3568: 34 09 0a 03 00 01 03 00 01 03 00 03 01 35 09 0d   4............5..
+|   3584: 03 00 01 03 00 01 03 00 00 03 67 63 63 09 01 03   ..........gcc...
+|   3600: 00 01 03 00 01 03 00 01 06 65 6f 70 6f 6c 79 09   .........eopoly.
+|   3616: 10 03 00 01 03 00 01 03 00 00 05 6a 73 6f 6e 31   ...........json1
+|   3632: 09 13 03 00 01 03 00 01 03 00 00 04 6c 6f 61 64   ............load
+|   3648: 09 1f 03 00 01 03 00 01 03 00 00 03 6d 61 78 09   ............max.
+|   3664: 1c 02 00 01 02 00 01 02 00 01 05 65 6d 6f 72 79   ...........emory
+|   3680: 09 1c 03 00 01 03 00 01 03 00 03 04 73 79 73 35   ............sys5
+|   3696: 09 16 03 00 01 03 00 01 03 00 00 06 6e 6f 63 61   ............noca
+|   3712: 73 65 3c 02 01 02 02 00 03 01 02 02 00 03 01 02   se<.............
+|   3728: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3744: 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00   ................
+|   3760: 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00 00   ................
+|   3776: 04 6f 6d 69 74 09 1f 02 00 01 02 00 01 02 00 00   .omit...........
+|   3792: 05 72 74 72 65 65 09 19 03 00 01 03 00 01 03 00   .rtree..........
+|   3808: 03 02 69 6d 3c 01 01 02 02 00 03 01 02 02 00 03   ..im<...........
+|   3824: 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01   ................
+|   3840: 02 02 00 03 01 02 02 00 03 01 a2 02 00 03 01 02   ................
+|   3856: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3872: 00 00 0a 74 68 72 65 61 64 73 61 66 65 09 22 02   ...threadsafe...
+|   3888: 00 01 02 00 01 02 00 00 04 76 74 61 62 09 07 04   .........vtab...
+|   3904: 00 01 04 00 01 04 00 00 01 78 b4 01 01 01 01 02   .........x......
+|   3920: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+|   3936: 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01   ................
+|   3952: 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01   ................
+|   3968: 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01   ................
+|   3984: 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02   ................
+|   4000: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+|   4016: 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01   ................
+|   4032: 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01   ................
+|   4048: 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01   ................
+|   4064: 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02   ................
+|   4080: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 02 0f f5 00 0f fb 0f f5 00 00 00 00   ................
+|   4080: 00 00 00 00 00 05 04 08 09 01 02 04 04 08 08 09   ................
+| page 7 offset 24576
+|      0: 0d 00 00 00 05 0f b8 00 0f f4 0f e9 0f d6 0f c7   ................
+|     16: 0f b8 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 0d 05 02 23 61 75 74 6f   ...........#auto
+|   4032: 6d 65 72 67 65 3d 35 0d 04 02 23 6d 65 72 67 65   merge=5...#merge
+|   4048: 3d 31 30 30 2c 38 11 03 02 2b 69 6e 74 65 67 72   =100,8...+integr
+|   4064: 69 74 79 2d 63 68 65 63 6b 09 02 02 1b 72 65 62   ity-check....reb
+|   4080: 75 69 6c 64 0a 01 02 1d 6f 70 74 69 6d 69 7a 65   uild....optimize
+| end crash-843cb8447eaf14.db
+}]} {}
+
+do_catchsql_test 11.1 {
+  SELECT rowid, quote(matchinfo(t1,'pcxybs')) FROM t1 WHERE t1 MATCH 'e*'
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 12.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 28672 pagesize 4096 filename c81b.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 01 00 00 00 07   .....@  ........
+|     32: 00 00 00 02 00 00 00 01 00 00 00 01 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01   ................
+|     96: 00 2e 30 38 0d 0e b1 00 06 0d a4 00 0f 8d 0f 21   ..08...........!
+|    112: 0e b9 0d c8 0e 7e 0d a4 0d a4 00 00 00 00 00 00   .....~..........
+|   3488: 00 00 00 00 22 07 06 17 11 11 01 31 74 61 62 6c   ...........1tabl
+|   3504: 65 74 32 74 32 07 43 52 45 41 54 45 20 54 41 42   et2t2.CREATE TAB
+|   3520: 4c 45 20 74 32 28 78 29 81 33 05 07 17 1f 1f 01   LE t2(x).3......
+|   3536: 82 35 74 61 62 6c 65 74 31 5f 73 65 67 64 69 72   .5tablet1_segdir
+|   3552: 74 31 5f 73 65 67 64 69 72 05 43 52 45 41 54 45   t1_segdir.CREATE
+|   3568: 20 54 41 42 4c 45 20 27 74 31 5f 73 65 67 64 69    TABLE 't1_segdi
+|   3584: 72 27 28 6c 65 76 65 6c 20 49 4e 54 45 47 45 52   r'(level INTEGER
+|   3600: 2c 69 64 78 20 49 4e 54 45 47 45 52 2c 73 74 61   ,idx INTEGER,sta
+|   3616: 72 74 5f 62 6c 6f 63 6b 20 49 4e 54 45 47 45 52   rt_block INTEGER
+|   3632: 2c 6c 65 61 76 65 73 5f 65 6e 64 5f 62 6c 6f 63   ,leaves_end_bloc
+|   3648: 6b 20 49 4e 54 45 47 45 52 2c 65 6e 64 5f 62 6c   k INTEGER,end_bl
+|   3664: 6f 63 6b 20 49 4e 54 45 47 45 62 2c 72 6f 6f 74   ock INTEGEb,root
+|   3680: 20 42 4c 4f 42 2c 50 52 49 4d 41 52 59 20 4b 45    BLOB,PRIMARY KE
+|   3696: 59 28 6c 65 76 65 6c 2c 20 69 64 78 29 29 31 06   Y(level, idx))1.
+|   3712: 06 17 45 1f 01 00 69 6e 64 65 78 73 71 6c 69 74   ..E...indexsqlit
+|   3728: 65 5f 61 75 74 6f 69 6e 64 65 78 5f 74 31 5f 73   e_autoindex_t1_s
+|   3744: 65 67 64 69 72 5f 31 74 31 5f 73 65 67 64 69 72   egdir_1t1_segdir
+|   3760: 06 0f c7 00 08 00 00 00 00 66 04 07 17 23 23 01   .........f...##.
+|   3776: 81 13 74 61 62 6c 65 74 31 5f 73 65 67 6d 65 6e   ..tablet1_segmen
+|   3792: 74 73 74 31 5f 73 65 67 6d 65 6e 74 73 04 43 52   tst1_segments.CR
+|   3808: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 73   EATE TABLE 't1_s
+|   3824: 65 67 6d 65 6e 74 73 27 28 62 6c 6f 63 6b 69 64   egments'(blockid
+|   3840: 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59    INTEGER PRIMARY
+|   3856: 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42    KEY, block BLOB
+|   3872: 29 6a 03 07 17 21 21 01 81 1f 74 61 62 6c 65 74   )j...!!...tablet
+|   3888: 31 5f 63 6f 6e 74 65 6e 74 74 31 5f 63 6f 6e 74   1_contentt1_cont
+|   3904: 65 6e 74 03 43 52 45 41 54 45 20 54 41 42 4c 45   ent.CREATE TABLE
+|   3920: 20 27 74 31 5f 63 6f 6e 74 65 6e 74 27 28 64 6f    't1_content'(do
+|   3936: 63 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   cid INTEGER PRIM
+|   3952: 41 52 59 20 4b 45 59 2c 20 27 63 30 61 27 2c 20   ARY KEY, 'c0a', 
+|   3968: 27 63 31 62 27 2c 20 27 63 32 63 27 29 38 02 06   'c1b', 'c2c')8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 33   LE t1 USING fts3
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 39 00 00 00 00 00   (a,b,c)...9.....
+| page 3 offset 8192
+|      0: 0d 00 00 00 25 0b 48 00 0f d8 0f af 0f 86 0f 74   ....%.H........t
+|     16: 0f 61 0f 4e 0f 2f 0f 0f 0e ef 0e d7 0e be 0e a5   .a.N./..........
+|     32: 0e 8d 0e 74 0e 5b 0e 40 0e 24 0e 08 0d ef 0d d5   ...t.[.@.$......
+|     48: 0d bb 0d a0 0d 84 0d 68 0d 4f 0d 35 0d 1b 0c fb   .......h.O.5....
+|     64: 0c da 0c b9 0c 99 0c 78 0c 57 0c 3e 0c 24 0c 0a   .......x.W.>.$..
+|     80: 0b 48 00 00 00 00 00 00 00 00 00 00 00 00 00 00   .H..............
+|   2880: 00 00 00 00 00 00 00 00 81 3f 25 06 00 82 7f 00   .........?%.....
+|   2896: 00 43 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e   .COMPILER=gcc-5.
+|   2912: 34 2e 30 20 32 30 31 36 30 36 30 39 20 44 45 42   4.0 20160609 DEB
+|   2928: 55 47 20 45 4e 41 42 4c 45 20 44 42 53 54 41 54   UG ENABLE DBSTAT
+|   2944: 20 56 54 41 42 20 45 4e 41 42 4c 45 20 46 54 53    VTAB ENABLE FTS
+|   2960: 34 20 45 4e 41 42 4c 45 20 46 54 53 35 20 45 4e   4 ENABLE FTS5 EN
+|   2976: 41 42 4c 45 20 47 45 4f 50 4f 4c 59 20 46 4e 41   ABLE GEOPOLY FNA
+|   2992: 42 4c 45 20 4a 53 4f 4e 31 20 45 4e 41 42 4c 45   BLE JSON1 ENABLE
+|   3008: 20 4d 45 4d 53 59 53 35 20 45 4e 41 42 4c 45 20    MEMSYS5 ENABLE 
+|   3024: 52 54 52 45 45 20 4d 41 58 20 4d 45 4d 4f 52 59   RTREE MAX MEMORY
+|   3040: 3d 35 30 30 30 30 30 30 30 20 4f 4d 49 54 20 4c   =50000000 OMIT L
+|   3056: 4f 41 44 20 45 58 54 45 4e 53 49 4f 4e 20 54 48   OAD EXTENSION TH
+|   3072: 52 45 41 44 53 41 46 45 3d 30 18 24 05 00 0f 25   READSAFE=0.$...%
+|   3088: 19 58 54 48 52 45 41 44 53 41 46 45 3d 30 42 49   .XTHREADSAFE=0BI
+|   3104: 4e 41 52 59 18 23 05 00 0f 25 19 58 54 48 52 45   NARY.#...%.XTHRE
+|   3120: 41 44 53 41 46 45 3d 30 4e 4f 43 41 53 45 17 22   ADSAFE=0NOCASE..
+|   3136: 05 00 0f 25 17 58 54 48 52 45 41 44 53 41 46 45   ...%.XTHREADSAFE
+|   3152: 3d 30 52 54 52 49 4d 1f 21 05 00 0f 33 19 58 4f   =0RTRIM.!...3.XO
+|   3168: 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49   MIT LOAD EXTENSI
+|   3184: 4f 4e 42 49 4e 41 52 59 1f 20 05 00 0f 33 19 58   ONBINARY. ...3.X
+|   3200: 4f 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53   OMIT LOAD EXTENS
+|   3216: 49 4f 4e 4e 4f 43 41 53 45 1e 1f 05 00 0f 33 17   IONNOCASE.....3.
+|   3232: 58 4f 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e   XOMIT LOAD EXTEN
+|   3248: 53 49 4f 4e 52 54 52 49 4d 1f 1e 05 00 0f 33 19   SIONRTRIM.....3.
+|   3264: 58 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30   XMAX MEMORY=5000
+|   3280: 30 30 30 30 42 49 4e 41 52 59 1f 1d 05 00 0f 33   0000BINARY.....3
+|   3296: 19 58 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30   .XMAX MEMORY=500
+|   3312: 30 30 30 30 30 4e 4f 43 41 53 45 1e 1c 05 00 0f   00000NOCASE.....
+|   3328: 33 17 58 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30   3.XMAX MEMORY=50
+|   3344: 30 30 30 30 30 30 52 54 52 49 4d 18 1b 05 00 0f   000000RTRIM.....
+|   3360: 25 19 58 45 4e 41 42 4c 45 20 52 54 52 45 45 42   %.XENABLE RTREEB
+|   3376: 49 4e 41 52 59 18 1a 05 00 0f 25 19 58 45 4e 41   INARY.....%.XENA
+|   3392: 42 4c 45 20 52 54 52 45 45 4e 4f 43 41 53 45 17   BLE RTREENOCASE.
+|   3408: 19 05 00 0f 25 17 58 45 4e 41 42 4c 45 20 52 54   ....%.XENABLE RT
+|   3424: 52 45 45 52 54 52 49 4d 1a 18 05 00 0f 29 19 58   REERTRIM.....).X
+|   3440: 45 4e 41 42 4c 45 20 4d 45 4d 53 59 53 35 42 49   ENABLE MEMSYS5BI
+|   3456: 4e 41 52 59 1a 17 05 00 0f 29 19 58 45 4e 41 42   NARY.....).XENAB
+|   3472: 4c 45 20 4d 45 4d 53 59 53 35 4e 4f 43 41 53 45   LE MEMSYS5NOCASE
+|   3488: 19 16 05 00 0f 29 17 58 45 4e 41 42 4c 45 20 4d   .....).XENABLE M
+|   3504: 45 4d 53 59 53 35 52 54 52 49 4d 18 15 05 00 0f   EMSYS5RTRIM.....
+|   3520: 25 19 58 45 4e 41 42 4c 45 20 4a 53 4f 4e 31 42   %.XENABLE JSON1B
+|   3536: 49 4e 41 52 59 18 14 05 00 0f 25 19 58 45 4e 41   INARY.....%.XENA
+|   3552: 42 4c 45 20 4a 53 4f 4e 31 4e 4f 43 41 53 45 17   BLE JSON1NOCASE.
+|   3568: 13 05 00 0f 25 17 58 45 4e 41 42 4c 45 20 4a 53   ....%.XENABLE JS
+|   3584: 4f 4e 31 52 54 52 49 4d 1a 12 05 00 0f 29 19 58   ON1RTRIM.....).X
+|   3600: 45 4e 41 42 4c 45 20 47 45 4f 50 4f 4c 59 42 49   ENABLE GEOPOLYBI
+|   3616: 4e 41 52 59 1a 11 05 00 0f 29 19 58 45 4e 41 1e   NARY.....).XENA.
+|   3632: 4c 45 20 47 45 4f 50 4f 4c 59 4e 4f 43 41 53 45   LE GEOPOLYNOCASE
+|   3648: 19 10 05 00 0f 29 17 58 45 4e 41 42 4c 45 20 47   .....).XENABLE G
+|   3664: 45 4f 50 4f 4c 59 52 54 52 49 4d 17 0f 05 00 0f   EOPOLYRTRIM.....
+|   3680: 23 19 58 45 4e 41 42 4c 45 20 46 54 53 35 42 49   #.XENABLE FTS5BI
+|   3696: 4e 41 52 59 17 0e 05 00 0f 23 19 58 55 4e 41 42   NARY.....#.XUNAB
+|   3712: 4c 45 20 46 54 53 35 4e 4f 43 41 53 45 16 0d 05   LE FTS5NOCASE...
+|   3728: 00 0f 23 17 58 45 4e 41 42 4c 45 20 46 54 53 35   ..#.XENABLE FTS5
+|   3744: 52 54 52 49 4d 17 0c 05 00 0f 23 19 58 45 4e 41   RTRIM.....#.XENA
+|   3760: 42 4c 45 20 46 54 53 34 42 49 4e 41 52 59 17 0b   BLE FTS4BINARY..
+|   3776: 05 00 0f 23 19 58 45 4e 41 42 4c 45 20 46 54 53   ...#.XENABLE FTS
+|   3792: 35 4e 4f 43 40 53 45 16 0a 05 00 0f 23 17 58 45   5NOC@SE.....#.XE
+|   3808: 4e 41 42 4c 45 20 46 54 53 34 52 54 52 49 4d 1e   NABLE FTS4RTRIM.
+|   3824: 09 05 00 0f 31 19 58 45 4e 41 42 4c 35 20 44 42   ....1.XENABL5 DB
+|   3840: 53 54 41 54 20 56 54 41 42 42 49 4e 41 52 59 1e   STAT VTABBINARY.
+|   3856: 08 05 00 0f 31 19 58 45 4e 41 42 4c 45 20 44 42   ....1.XENABLE DB
+|   3872: 53 54 41 54 20 56 54 41 42 4e 4f 43 41 53 45 1d   STAT VTABNOCASE.
+|   3888: 07 05 00 0f 31 17 58 45 4e 41 42 4c 45 20 44 42   ....1.XENABLE DB
+|   3904: 53 54 41 54 20 56 54 41 42 52 54 52 49 4d 11 06   STAT VTABRTRIM..
+|   3920: 05 00 0f 17 19 58 44 45 42 55 47 42 49 4e 41 52   .....XDEBUGBINAR
+|   3936: 59 11 05 05 00 0f 17 19 58 44 45 42 55 47 4e 4f   Y.......XDEBUGNO
+|   3952: 43 41 53 45 10 04 05 00 0f 17 17 58 44 45 42 55   CASE.......XDEBU
+|   3968: 47 52 54 52 49 4d 27 03 05 00 0f 43 19 58 43 4f   GRTRIM'....C.XCO
+|   3984: 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e 30   MPILER=gcc-5.4.0
+|   4000: 20 32 30 31 36 30 36 30 39 42 49 4e 41 52 59 27    20160609BINARY'
+|   4016: 02 05 00 0f 43 19 58 43 4f 4d 50 49 4c 45 52 3d   ....C.XCOMPILER=
+|   4032: 67 63 63 2d 35 2e 34 2e 30 20 32 30 31 36 30 36   gcc-5.4.0 201606
+|   4048: 30 39 4e 4f 43 41 53 45 26 01 05 00 0f 43 17 58   09NOCASE&....C.X
+|   4064: 43 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34   COMPILER=gcc-5.4
+|   4080: 2e 30 20 32 30 31 36 30 36 30 39 52 54 52 49 4d   .0 20160609RTRIM
+| page 4 offset 12288
+|      0: 0d 00 00 00 00 10 00 00 00 00 00 00 00 00 00 00   ................
+| page 5 offset 16384
+|      0: 0d 00 00 00 03 07 bb 00 0c ad 0b a0 07 bb 00 00   ................
+|   1968: 00 00 00 00 00 00 00 00 00 00 00 87 62 03 08 08   ............b...
+|   1984: 01 08 08 17 8f 34 02 30 20 39 38 30 00 01 30 1e   .....4.0 980..0.
+|   2000: 01 01 01 06 00 01 01 01 06 00 01 01 01 06 00 1f   ................
+|   2016: 01 01 03 00 01 01 01 03 00 01 01 01 03 00 00 08   ................
+|   2032: 32 30 31 36 30 36 30 39 0f 01 01 01 07 00 01 01   20160609........
+|   2048: 01 07 00 01 01 01 07 00 00 01 34 0f 01 01 01 05   ..........4.....
+|   2064: 00 01 01 01 05 00 01 01 01 05 00 00 01 35 0f 01   .............5..
+|   2080: 01 01 04 00 01 01 01 04 00 01 01 01 04 00 01 07   ................
+|   2096: 30 30 30 30 30 30 30 0f 1c 01 01 04 00 01 01 01   0000000.........
+|   2112: 04 00 01 01 01 04 00 00 06 62 69 6e 61 72 79 3c   .........binary<
+|   2128: 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03   ................
+|   2144: 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01   ................
+|   2160: 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02   ................
+|   2176: 02 00 03 01 02 02 00 03 01 02 02 00 00 08 63 6f   ..............co
+|   2192: 6d 70 69 6c 65 72 0f 01 01 01 02 00 01 01 01 02   mpiler..........
+|   2208: 00 01 01 01 02 00 00 06 64 62 73 74 61 74 0f 07   ........dbstat..
+|   2224: 01 01 03 00 01 01 01 03 00 01 01 01 03 00 01 04   ................
+|   2240: 65 62 75 67 0f 04 01 01 02 00 01 01 01 02 00 01   ebug............
+|   2256: 01 01 02 00 00 03 65 6e 61 05 11 01 01 02 00 03   ......ena.......
+|   2272: 03 62 6c 35 05 09 01 01 02 00 05 01 65 5a 07 01   .bl5........eZ..
+|   2288: 01 02 00 01 01 01 02 00 02 01 01 02 00 01 01 01   ................
+|   2304: 02 00 01 01 01 02 00 01 01 01 02 00 02 01 01 02   ................
+|   2320: 00 01 01 01 02 00 02 01 01 02 00 01 01 01 02 00   ................
+|   2336: 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01   ................
+|   2352: 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01   ................
+|   2368: 01 02 00 01 01 01 02 00 01 08 78 74 65 6e 73 69   ..........xtensi
+|   2384: 6f 6e 0f 1f 01 01 04 00 01 01 01 04 00 01 01 01   on..............
+|   2400: 04 00 00 04 66 74 73 34 0a 0a 01 01 03 00 02 01   ....fts4........
+|   2416: 01 03 00 03 01 35 14 0b 01 01 03 00 02 01 01 03   .....5..........
+|   2432: 00 01 01 01 03 00 01 01 01 03 00 00 03 67 63 63   .............gcc
+|   2448: 0f 01 01 01 03 00 01 01 01 03 00 01 01 01 03 00   ................
+|   2464: 01 06 65 6f 70 6f 6c 79 0f 10 01 01 03 00 01 01   ..eopoly........
+|   2480: 01 04 00 01 01 01 03 00 00 05 6a 73 6f 6e 31 0f   ..........json1.
+|   2496: 13 01 01 03 00 01 01 01 03 00 01 01 01 03 00 00   ................
+|   2512: 02 6c 65 05 11 01 01 03 00 01 03 6f 61 64 0f 1f   .le........oad..
+|   2528: 01 01 03 00 01 01 01 03 00 01 01 01 03 00 00 03   ................
+|   2544: 6d 61 78 0f 1c 01 01 02 00 01 01 01 02 00 01 01   max.............
+|   2560: 01 02 00 01 05 65 6d 6f 72 79 0f 1c 01 01 03 00   .....emory......
+|   2576: 01 01 01 03 00 01 01 01 03 00 03 04 73 79 73 35   ............sys5
+|   2592: 0f 16 01 01 03 00 01 01 01 03 00 01 01 01 03 00   ................
+|   2608: 00 03 6e 6f 63 05 0b 01 02 02 00 03 03 61 73 65   ..noc........ase
+|   2624: 37 02 01 02 02 00 03 01 02 02 00 03 01 02 02 00   7...............
+|   2640: 06 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03   ................
+|   2656: 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01   ................
+|   2672: 02 02 00 03 01 02 02 00 00 04 6f 6d 69 74 0f 1f   ..........omit..
+|   2688: 01 01 02 00 01 01 01 02 00 01 01 01 02 00 00 05   ................
+|   2704: 72 74 72 65 65 0f 19 01 01 03 00 01 01 01 03 00   rtree...........
+|   2720: 01 01 01 03 00 03 02 69 6d 3c 01 01 02 02 00 03   .......im<......
+|   2736: 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01   ................
+|   2752: 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02   ................
+|   2768: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   2784: 00 03 01 02 02 00 00 02 73 65 05 0b 01 02 03 00   ........se......
+|   2800: 00 0a 74 68 72 65 61 64 73 61 66 65 0f 22 01 01   ..threadsafe....
+|   2816: 02 00 01 01 01 02 00 01 01 01 02 00 00 06 75 6e   ..............un
+|   2832: 61 62 6c 65 05 0e 01 01 02 00 00 04 76 74 61 62   able........vtab
+|   2848: 0f 07 01 01 04 00 01 01 01 04 00 01 01 01 04 00   ................
+|   2864: 00 01 78 6c 01 02 00 01 02 00 01 02 00 01 02 00   ..xl............
+|   2880: 01 02 00 01 02 00 01 02 00 01 02 00 01 02 00 01   ................
+|   2896: 02 00 01 02 00 01 02 00 01 02 00 01 02 00 01 02   ................
+|   2912: 00 01 02 00 01 02 00 01 02 00 01 02 00 01 02 00   ................
+|   2928: 01 02 00 01 02 00 01 02 00 01 02 00 01 02 00 01   ................
+|   2944: 02 00 01 02 00 01 02 00 01 02 00 01 02 00 01 02   ................
+|   2960: 00 01 02 00 01 02 00 01 02 00 01 02 00 01 02 00   ................
+|   2976: 82 0a 02 08 08 09 08 08 17 84 06 30 20 32 35 33   ...........0 253
+|   2992: 00 01 30 04 25 06 1b 00 00 08 32 30 31 36 30 36   ..0.%.....201606
+|   3008: 30 39 03 25 07 00 00 01 34 03 25 05 00 00 01 35   09.%....4.%....5
+|   3024: 03 25 04 00 01 07 30 30 30 30 30 30 30 03 25 1a   .%....0000000.%.
+|   3040: 00 00 08 63 6f 6d 70 69 6c 65 72 03 25 02 00 00   ...compiler.%...
+|   3056: 06 64 62 73 74 61 74 03 25 0a 00 01 04 65 62 75   .dbstat.%....ebu
+|   3072: 67 03 25 08 00 00 06 65 6e 61 62 6c 65 09 25 09   g.%....enable.%.
+|   3088: 05 04 04 04 04 04 00 01 08 78 74 65 6e 73 69 6f   .........xtensio
+|   3104: 6e 03 25 1d 00 00 04 66 74 73 34 03 25 0d 00 03   n.%....fts4.%...
+|   3120: 11 35 03 25 0f 00 00 03 67 63 63 03 25 03 00 01   .5.%....gcc.%...
+|   3136: 06 65 6f 70 6f 6c 79 03 25 11 00 00 05 6a 73 6f   .eopoly.%....jso
+|   3152: 6e 31 03 25 13 00 00 04 6c 6f 61 64 03 25 1c 00   n1.%....load.%..
+|   3168: 00 03 6d 61 78 03 25 18 00 01 05 65 6d 6f 72 79   ..max.%....emory
+|   3184: 03 25 19 00 03 04 73 79 73 35 03 25 15 00 00 04   .%....sys5.%....
+|   3200: 6f 6d 69 74 03 25 1b 00 00 05 72 74 72 65 65 03   omit.%....rtree.
+|   3216: 25 17 00 00 0a 74 68 72 65 61 64 73 61 66 65 03   %....threadsafe.
+|   3232: 25 1e 00 00 04 76 74 61 62 03 25 0b 00 86 50 01   %....vtab.%...P.
+|   3248: 08 08 08 08 08 17 8d 12 30 20 38 33 35 00 01 30   ........0 835..0
+|   3264: 12 00 f6 00 01 06 00 01 06 00 1f 03 00 01 03 00   ................
+|   3280: 01 03 00 00 08 32 30 31 36 30 36 30 39 09 01 07   .....20160609...
+|   3296: 00 01 07 00 01 07 00 00 01 34 09 01 05 00 01 05   .........4......
+|   3312: 00 01 05 00 00 01 35 09 01 04 00 01 04 00 01 04   ......5.........
+|   3328: 00 01 07 30 30 30 30 30 30 30 09 1c 04 00 01 04   ...0000000......
+|   3344: 00 01 04 00 00 06 62 69 6e 61 72 79 3c 03 01 02   ......binary<...
+|   3360: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3376: 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00   ................
+|   3392: 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03   ................
+|   3408: 01 02 02 00 03 01 02 02 00 00 08 63 6f 6d 70 69   ...........compi
+|   3424: 6c 65 72 09 01 02 00 01 02 00 01 02 00 00 06 64   ler............d
+|   3440: 62 73 74 61 74 09 07 03 00 01 03 00 01 03 00 01   bstat...........
+|   3456: 04 65 62 75 67 09 04 02 00 01 02 00 01 02 00 00   .ebug...........
+|   3472: 06 65 6e 61 62 6c 65 3f 07 02 00 01 02 00 01 01   .enable?........
+|   3488: 00 01 02 00 01 02 00 01 02 00 01 02 00 01 02 00   ................
+|   3504: 01 02 00 01 02 00 01 02 00 01 02 00 01 02 10 01   ................
+|   3520: 02 00 01 02 00 01 02 00 01 02 00 01 02 00 01 02   ................
+|   3536: 00 01 02 00 01 02 00 01 08 78 74 65 6e 73 69 6f   .........xtensio
+|   3552: 6e 09 1f 04 00 01 04 00 01 04 00 00 04 66 74 73   n............fts
+|   3568: 34 09 0a 03 00 01 03 00 01 03 00 03 01 35 09 0d   4............5..
+|   3584: 03 00 01 03 00 01 03 00 00 03 67 63 63 09 01 03   ..........gcc...
+|   3600: 00 01 03 00 01 03 00 01 06 65 6f 70 6f 6c 79 09   .........eopoly.
+|   3616: 10 03 00 01 03 00 01 03 00 00 05 6a 73 6f 6e 31   ...........json1
+|   3632: 09 13 03 00 01 03 00 01 03 00 00 04 6c 6f 61 64   ............load
+|   3648: 09 1f 03 00 01 03 00 01 03 00 00 03 6d 61 78 09   ............max.
+|   3664: 1c 02 00 01 02 00 01 02 00 01 05 65 6d 6f 72 79   ...........emory
+|   3680: 09 1c 03 00 01 03 00 01 03 00 03 04 73 79 73 35   ............sys5
+|   3696: 09 16 03 00 01 03 00 01 03 00 00 06 6e 6f 63 61   ............noca
+|   3712: 73 65 3c 02 01 02 02 00 03 01 02 02 00 03 01 02   se<.............
+|   3728: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3744: 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00   ................
+|   3760: 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00 00   ................
+|   3776: 04 6f 6d 69 74 09 1f 02 00 01 02 00 01 02 00 00   .omit...........
+|   3792: 05 72 74 72 65 65 09 19 03 00 01 03 00 01 03 00   .rtree..........
+|   3808: 03 02 69 6d 3c 01 01 02 02 00 03 01 02 02 00 03   ..im<...........
+|   3824: 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01   ................
+|   3840: 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02   ................
+|   3856: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3872: 00 00 0a 74 68 72 65 61 64 73 61 66 65 09 22 02   ...threadsafe...
+|   3888: 00 01 02 00 02 02 00 00 04 76 74 61 62 09 07 04   .........vtab...
+|   3904: 00 01 04 00 01 04 00 00 01 78 b4 01 01 01 01 02   .........x......
+|   3920: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+|   3936: 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01   ................
+|   3952: 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01   ................
+|   3968: 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01   ................
+|   3984: 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02   ................
+|   4000: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+|   4016: 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01   ................
+|   4032: 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01   ................
+|   4048: 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01   ................
+|   4064: 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02   ................
+|   4080: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 03 0f ee 00 0f fb 0f f5 0f ee 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 06 04   ................
+|   4080: 08 01 01 02 03 05 04 08 09 01 02 04 04 08 08 09   ................
+| page 7 offset 24576
+|      0: 0d 00 00 00 05 0f b8 00 0f f4 0f e9 0f d6 0f c7   ................
+|     16: 0f b8 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 0d 05 02 23 61 75 74 6f   ...........#auto
+|   4032: 6d 65 72 67 65 3d 35 0c f4 02 23 6d 65 72 67 65   merge=5...#merge
+|   4048: 3d 31 30 30 2c 38 11 03 02 2b 69 6e 74 65 67 72   =100,8...+integr
+|   4064: 69 74 79 2d 63 68 65 63 6b 09 02 02 1b 72 65 62   ity-check....reb
+|   4080: 75 69 6c 64 0a 01 02 1d 6f 70 74 69 6d 69 7a 65   uild....optimize
+| end c81b.db
+}]} {}
+
+do_catchsql_test 12.1 {
+  SELECT rowid, quote(matchinfo(t1,'pcxybspcxybs')) 
+  FROM t1 WHERE t1 MATCH 'e*e*'
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 13.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 28672 pagesize 4096 filename crash-c666cfde112dee.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 07   .....@  ........
+|     32: 00 00 00 02 00 00 00 01 00 00 00 07 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 07 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 0e b1 00 06 0d a4 00 0f 8d 0f 21   ...............!
+|    112: 0e b9 0d c8 0e 7e 0d a4 0d a4 00 00 00 00 00 00   .....~..........
+|   3488: 00 00 00 00 22 07 06 17 11 11 01 31 74 61 62 6c   ...........1tabl
+|   3504: 65 74 32 74 32 07 43 52 45 41 54 45 20 54 41 42   et2t2.CREATE TAB
+|   3520: 4c 45 20 74 32 28 78 29 81 33 05 07 17 1f 1f 01   LE t2(x).3......
+|   3536: 82 35 74 61 62 6c 65 74 31 5f 73 65 67 64 69 72   .5tablet1_segdir
+|   3552: 74 31 5f 73 65 67 64 69 72 05 43 52 45 41 54 45   t1_segdir.CREATE
+|   3568: 20 54 41 42 4c 45 20 27 74 31 5f 73 65 67 64 69    TABLE 't1_segdi
+|   3584: 72 27 28 6c 65 76 65 6c 20 49 4e 54 45 47 45 52   r'(level INTEGER
+|   3600: 2c 69 64 78 20 49 4e 54 45 47 45 52 2c 73 74 61   ,idx INTEGER,sta
+|   3616: 72 74 5f 62 6c 6f 63 6b 20 49 4e 54 45 47 45 52   rt_block INTEGER
+|   3632: 2c 6c 65 61 76 65 73 5f 65 6e 64 5f 62 6c 6f 63   ,leaves_end_bloc
+|   3648: 6b 20 49 4e 54 45 47 45 52 2c 65 6e 64 5f 62 6c   k INTEGER,end_bl
+|   3664: 6f 63 6b 20 49 4e 54 45 47 45 62 2c 72 6f 6f 74   ock INTEGEb,root
+|   3680: 20 42 4c 4f 42 2c 50 52 49 4d 41 52 59 20 4b 45    BLOB,PRIMARY KE
+|   3696: 59 28 6c 65 76 65 6c 2c 20 69 64 78 29 29 31 06   Y(level, idx))1.
+|   3712: 06 17 45 1f 01 00 69 6e 64 65 78 73 71 6c 69 74   ..E...indexsqlit
+|   3728: 65 5f 61 75 74 6f 69 6e 64 65 78 5f 74 31 5f 73   e_autoindex_t1_s
+|   3744: 65 67 64 69 72 5f 31 74 31 5f 73 65 67 64 69 72   egdir_1t1_segdir
+|   3760: 06 0f c7 00 08 00 00 00 00 66 04 07 17 23 23 01   .........f...##.
+|   3776: 81 13 74 61 62 6c 65 74 31 5f 73 65 67 6d 65 6e   ..tablet1_segmen
+|   3792: 74 73 74 31 5f 73 65 67 6d 65 6e 74 73 04 43 52   tst1_segments.CR
+|   3808: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 73   EATE TABLE 't1_s
+|   3824: 65 67 6d 65 6e 74 73 27 28 62 6c 6f 63 6b 69 64   egments'(blockid
+|   3840: 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59    INTEGER PRIMARY
+|   3856: 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42    KEY, block BLOB
+|   3872: 29 6a 03 07 17 21 21 01 81 1f 74 61 62 6c 65 74   )j...!!...tablet
+|   3888: 31 5f 63 6f 6e 74 65 6e 74 74 31 5f 63 6f 6e 74   1_contentt1_cont
+|   3904: 65 6e 74 03 43 52 45 41 54 45 20 54 41 42 4c 45   ent.CREATE TABLE
+|   3920: 20 27 74 31 5f 63 6f 6e 74 65 6e 74 27 28 64 6f    't1_content'(do
+|   3936: 63 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   cid INTEGER PRIM
+|   3952: 41 52 59 20 4b 45 59 2c 20 27 63 30 61 27 2c 20   ARY KEY, 'c0a', 
+|   3968: 27 63 31 62 27 2c 20 27 63 32 63 27 29 38 02 06   'c1b', 'c2c')8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 33   LE t1 USING fts3
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 39 00 00 00 00 00   (a,b,c)...9.....
+| page 3 offset 8192
+|      0: 0d 00 00 00 25 0b 48 00 0f d8 0f af 0f 86 0f 74   ....%.H........t
+|     16: 0f 61 0f 4e 0f 2f 0f 0f 0e ef 0e d7 0e be 0e a5   .a.N./..........
+|     32: 0e 8d 0e 74 0e 5b 0e 40 0e 24 0e 08 0d ef 0d d5   ...t.[.@.$......
+|     48: 0d bb 0d a0 0d 84 0d 68 0d 4f 0d 35 0d 1b 0c fb   .......h.O.5....
+|     64: 0c da 0c b9 0c 99 0c 78 0c 57 0c 3e 0c 24 0c 0a   .......x.W.>.$..
+|     80: 0b 48 00 00 00 00 00 00 00 00 00 00 00 00 00 00   .H..............
+|   2880: 00 00 00 00 00 00 00 00 81 3f 25 06 00 82 7f 00   .........?%.....
+|   2896: 00 43 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e   .COMPILER=gcc-5.
+|   2912: 34 23 00 20 32 30 31 36 30 36 30 39 20 44 45 42   4#. 20160609 DEB
+|   2928: 55 47 20 45 4e 41 42 4c 45 20 44 42 53 54 41 54   UG ENABLE DBSTAT
+|   2944: 20 56 54 41 42 20 45 4e 41 42 4c 45 20 46 54 53    VTAB ENABLE FTS
+|   2960: 34 20 45 4e 41 42 4c 45 20 46 54 53 35 20 45 4e   4 ENABLE FTS5 EN
+|   2976: 41 42 4c 45 20 47 45 4f 50 4f 4c 59 20 45 4e 41   ABLE GEOPOLY ENA
+|   2992: 42 4c 45 20 4a 53 4f 4e 31 20 45 4e 41 42 4c 45   BLE JSON1 ENABLE
+|   3008: 20 4d 45 4d 53 59 53 35 20 45 4e 41 42 4c 45 20    MEMSYS5 ENABLE 
+|   3024: 52 54 52 45 45 20 4d 41 58 20 4d 45 4d 4f 52 59   RTREE MAX MEMORY
+|   3040: 3d 35 30 30 30 30 30 30 30 20 4f 4d 49 54 20 4c   =50000000 OMIT L
+|   3056: 4f 41 44 20 45 58 54 45 4e 53 49 4f 4e 20 54 48   OAD EXTENSION TH
+|   3072: 52 45 41 44 53 41 46 45 3d 30 18 24 05 00 25 0f   READSAFE=0.$..%.
+|   3088: 19 54 48 52 45 41 44 53 41 46 45 3d 30 58 42 49   .THREADSAFE=0XBI
+|   3104: 4e 41 52 59 18 23 05 00 25 0f 19 54 48 52 45 41   NARY.#..%..THREA
+|   3120: 44 53 41 46 45 3d 30 58 4e 4f 43 41 53 45 17 22   DSAFE=0XNOCASE..
+|   3136: 05 00 25 0f 17 54 48 52 45 41 44 53 41 46 45 3d   ..%..THREADSAFE=
+|   3152: 30 58 52 54 52 49 4d 1f 21 05 00 33 0f 19 4f 4d   0XRTRIM.!..3..OM
+|   3168: 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49 4f   IT LOAD EXTENSIO
+|   3184: 4e 58 42 49 4e 41 52 59 1f 20 05 00 33 0f 19 4f   NXBINARY. ..3..O
+|   3200: 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49   MIT LOAD EXTENSI
+|   3216: 4f 4e 58 4e 4f 43 41 53 45 1e 1f 05 00 33 0f 17   ONXNOCASE....3..
+|   3232: 4f 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53   OMIT LOAD EXTENS
+|   3248: 49 4f 4e 58 52 54 52 49 4d 1f 1e 05 00 33 0f 19   IONXRTRIM....3..
+|   3264: 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30 30   MAX MEMORY=50000
+|   3280: 30 30 30 58 42 49 4e 41 52 59 1f 1d 05 00 33 0f   000XBINARY....3.
+|   3296: 19 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30   .MAX MEMORY=5000
+|   3312: 30 30 30 30 58 4e 4f 43 41 53 45 1e 1c 05 00 33   0000XNOCASE....3
+|   3328: 0f 17 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30   ..MAX MEMORY=500
+|   3344: 30 30 30 30 30 58 52 54 53 49 4d 18 1b 05 00 25   00000XRTSIM....%
+|   3360: 0f 19 45 4e 41 42 4c 45 20 52 54 52 45 45 58 42   ..ENABLE RTREEXB
+|   3376: 49 4e 41 52 59 18 1a 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3392: 4c 45 20 52 54 52 45 45 58 4e 4f 43 41 53 45 17   LE RTREEXNOCASE.
+|   3408: 19 05 00 25 0f 17 45 4e 41 42 4c 45 20 52 54 52   ...%..ENABLE RTR
+|   3424: 45 45 58 52 54 52 49 4d 1a 18 05 00 29 0f 19 45   EEXRTRIM....)..E
+|   3440: 4e 41 42 4c 45 20 4d 45 4d 53 59 53 35 58 42 49   NABLE MEMSYS5XBI
+|   3456: 4e 41 52 59 1a 17 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3472: 45 20 4d 45 4d 53 59 53 35 58 4e 4f 43 41 53 45   E MEMSYS5XNOCASE
+|   3488: 19 16 05 00 29 0f 17 45 4e 41 42 4c 45 20 4d 45   ....)..ENABLE ME
+|   3504: 4d 53 59 53 35 58 52 54 52 49 4d 18 15 05 00 25   MSYS5XRTRIM....%
+|   3520: 0f 19 45 4e 41 42 4c 45 20 4a 53 4f 4e 31 58 42   ..ENABLE JSON1XB
+|   3536: 49 4e 41 52 59 18 14 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3552: 4c 45 20 4a 53 4f 4e 31 58 4e 4f 43 41 53 45 17   LE JSON1XNOCASE.
+|   3568: 13 05 00 25 0f 17 45 4e 41 52 4c 45 20 4a 53 4f   ...%..ENARLE JSO
+|   3584: 4e 31 58 52 54 52 49 4d 1a 12 05 00 29 0f 19 45   N1XRTRIM....)..E
+|   3600: 4e 41 42 4c 45 20 47 45 4f 50 4f 4c 59 58 42 49   NABLE GEOPOLYXBI
+|   3616: 4e 41 52 59 1a 11 05 00 29 0f 19 45 4e 41 1e 4c   NARY....)..ENA.L
+|   3632: 45 20 47 45 4f 50 4f 4c 59 58 4e 4f 43 41 53 45   E GEOPOLYXNOCASE
+|   3648: 19 10 05 00 29 0f 17 45 4e 41 42 4c 45 20 47 45   ....)..ENABLE GE
+|   3664: 4f 50 4f 4c 59 58 52 54 52 49 4d 17 0f 05 00 23   OPOLYXRTRIM....#
+|   3680: 0f 19 45 4e 41 42 4c 45 20 46 54 53 35 58 42 49   ..ENABLE FTS5XBI
+|   3696: 4e 41 52 59 17 0e 05 00 23 0f 19 45 4e 41 42 4c   NARY....#..ENABL
+|   3712: 45 20 46 54 53 35 58 4e 4f 43 41 53 45 16 0d 05   E FTS5XNOCASE...
+|   3728: 00 23 0f 17 45 4e 41 42 4c 45 20 46 54 59 e5 58   .#..ENABLE FTY.X
+|   3744: 52 54 52 49 4d 17 0c 05 00 23 0f 19 45 4e 41 42   RTRIM....#..ENAB
+|   3760: 4c 45 20 46 54 53 34 58 42 49 4e 41 52 59 17 0b   LE FTS4XBINARY..
+|   3776: 05 00 23 0f 19 45 4e 41 42 4c 45 20 46 54 53 35   ..#..ENABLE FTS5
+|   3792: 58 4e 4f 43 40 53 45 16 0a 05 00 23 0f 17 45 4e   XNOC@SE....#..EN
+|   3808: 41 42 4c 45 20 46 54 53 34 58 52 54 52 49 4d 1e   ABLE FTS4XRTRIM.
+|   3824: 09 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3840: 54 41 54 20 56 54 41 42 58 42 49 4e 41 52 59 1e   TAT VTABXBINARY.
+|   3856: 08 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3872: 54 41 54 20 56 54 41 42 58 4e 4f 43 41 53 45 1d   TAT VTABXNOCASE.
+|   3888: 07 05 00 31 0f 17 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3904: 54 41 54 20 56 54 41 42 58 52 54 52 49 4d 11 06   TAT VTABXRTRIM..
+|   3920: 05 00 17 0f 19 44 45 42 55 47 58 42 49 4e 41 52   .....DEBUGXBINAR
+|   3936: 59 11 05 05 00 17 0f 19 44 45 42 55 47 58 4e 4f   Y.......DEBUGXNO
+|   3952: 43 41 53 45 10 04 05 00 17 0f 17 44 45 42 55 47   CASE.......DEBUG
+|   3968: 58 52 54 52 49 4d 27 03 05 00 43 0f 19 43 4f 4d   XRTRIM'...C..COM
+|   3984: 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e 30 20   PILER=gcc-5.4.0 
+|   4000: 32 30 31 36 30 36 30 39 58 42 49 4e 41 52 59 27   20160609XBINARY'
+|   4016: 02 05 00 43 0f 19 43 4f 4d 50 49 4c 45 52 3d 67   ...C..COMPILER=g
+|   4032: 63 63 2d 35 2e 34 2f 30 20 32 30 31 36 30 36 30   cc-5.4/0 2016060
+|   4048: 39 58 4e 4f 43 41 53 45 26 01 05 00 43 0f 17 43   9XNOCASE&...C..C
+|   4064: 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e   OMPILER=gcc-5.4.
+|   4080: 30 20 32 30 31 36 30 36 30 39 58 52 54 52 49 4d   0 20160609XRTRIM
+| page 4 offset 12288
+|      0: 0d 00 00 00 00 10 00 00 00 00 00 00 00 00 00 00   ................
+| page 5 offset 16384
+|      0: 0d 00 00 00 02 0b a0 00 0c ad 0b a0 00 00 00 00   ................
+|   2976: 82 0a 02 08 08 09 08 08 17 84 06 30 20 32 35 33   ...........0 253
+|   2992: 00 01 30 04 25 06 1b 00 00 08 32 30 31 36 30 36   ..0.%.....201606
+|   3008: 30 39 03 25 07 00 00 01 34 03 25 05 00 00 01 35   09.%....4.%....5
+|   3024: 03 25 04 00 01 07 30 30 30 30 30 30 30 03 25 1a   .%....0000000.%.
+|   3040: 00 00 08 63 6f 6d 70 69 6c 65 72 03 25 02 00 00   ...compiler.%...
+|   3056: 06 64 62 73 74 61 74 03 25 0a 00 01 04 65 62 75   .dbstat.%....ebu
+|   3072: 67 03 25 08 00 00 06 65 6e 61 62 6c 65 09 25 09   g.%....enable.%.
+|   3088: 05 04 04 04 04 04 00 01 08 78 74 65 6e 73 69 6f   .........xtensio
+|   3104: 6e 03 25 1d 00 00 04 66 74 73 34 03 25 0d 00 03   n.%....fts4.%...
+|   3120: 01 35 03 25 0f 00 00 03 67 63 63 03 25 03 00 01   .5.%....gcc.%...
+|   3136: 06 65 6f 70 6f 6c 79 03 25 11 00 00 05 6a 73 6f   .eopoly.%....jso
+|   3152: 6e 31 03 25 13 41 00 04 6c 6f 61 64 03 25 1c 00   n1.%.A..load.%..
+|   3168: 00 03 6d 61 78 03 25 18 00 01 05 65 6d 6f 72 79   ..max.%....emory
+|   3184: 03 25 19 00 03 04 73 79 73 35 03 25 15 00 00 04   .%....sys5.%....
+|   3200: 6f 6d 69 74 03 25 1b 00 00 05 72 74 72 65 65 03   omit.%....rtree.
+|   3216: 25 17 00 00 0a 74 68 72 65 61 64 73 61 66 65 03   %....threadsafe.
+|   3232: 25 1e 00 00 04 76 74 61 62 03 25 0b 00 86 50 01   %....vtab.%...P.
+|   3248: 08 08 08 08 08 17 8d 12 30 20 38 33 35 00 01 30   ........0 835..0
+|   3264: 12 01 06 00 01 06 00 01 06 00 1f 03 00 01 03 00   ................
+|   3280: 01 03 00 00 08 32 30 31 36 30 36 30 39 09 01 07   .....20160609...
+|   3296: 00 01 07 00 01 07 00 00 01 34 09 01 05 00 01 05   .........4......
+|   3312: 00 01 05 00 00 01 35 09 01 04 00 01 04 00 01 04   ......5.........
+|   3328: 00 01 07 30 30 30 30 30 30 30 09 1c 04 00 01 04   ...0000000......
+|   3344: 00 01 04 00 00 06 62 69 6e 61 72 79 3c 03 02 02   ......binary<...
+|   3360: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3376: 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00   ................
+|   3392: 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03   ................
+|   3408: 01 02 02 00 03 01 02 02 00 00 08 63 6f 6d 70 69   ...........compi
+|   3424: 6c 65 72 09 01 02 00 01 02 00 01 02 00 00 06 64   ler............d
+|   3440: 62 73 74 61 74 09 f2 03 00 01 03 00 01 03 00 01   bstat...........
+|   3456: 04 65 62 75 67 09 04 02 00 01 02 00 01 02 00 00   .ebug...........
+|   3472: 06 65 6e 61 62 6c 65 3f 07 02 00 01 02 00 01 02   .enable?........
+|   3488: 00 01 02 00 01 02 00 01 02 00 01 02 00 57 02 00   .............W..
+|   3504: 01 02 00 01 01 00 01 02 00 01 02 00 01 02 10 01   ................
+|   3520: 02 00 01 02 00 01 02 00 01 02 00 01 02 00 01 02   ................
+|   3536: 00 01 02 00 01 02 00 01 08 78 74 64 6e 73 69 6f   .........xtdnsio
+|   3552: 6e 09 1f 04 00 01 04 00 01 03 00 00 04 66 74 73   n............fts
+|   3568: 34 09 0a 03 00 01 03 00 01 03 00 03 01 35 09 0d   4............5..
+|   3584: 03 00 01 03 00 01 03 00 00 03 57 63 63 09 01 03   ..........Wcc...
+|   3600: 00 01 03 00 01 03 00 01 06 65 6f 70 6f 6c 79 09   .........eopoly.
+|   3616: 10 03 00 01 03 00 01 03 00 00 05 6a 73 6f 6e 31   ...........json1
+|   3632: 09 13 03 00 01 03 00 01 03 00 00 04 6c 6f 61 64   ............load
+|   3648: 09 1f 03 00 01 03 00 01 03 00 00 03 6d 61 78 09   ............max.
+|   3664: 1c 02 00 01 02 00 01 02 00 01 05 65 6d 6f 72 79   ...........emory
+|   3680: 09 1c 03 00 01 03 00 01 03 00 03 04 73 79 73 35   ............sys5
+|   3696: 09 16 03 00 01 03 00 01 03 00 00 06 6e 6f 63 61   ............noca
+|   3712: 73 65 3c 02 01 02 02 00 03 01 02 02 00 03 01 02   se<.............
+|   3728: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3744: 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00   ................
+|   3760: 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00 00   ................
+|   3776: 04 6f 6d 69 74 09 1f 02 00 01 02 00 01 02 00 00   .omit...........
+|   3792: 05 72 74 72 65 65 09 19 03 00 01 03 00 01 03 00   .rtree..........
+|   3808: 03 02 69 6d 3c 01 01 02 02 00 03 01 02 02 00 03   ..im<...........
+|   3824: 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01   ................
+|   3840: 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02   ................
+|   3856: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3872: 00 00 0a 74 68 72 65 61 64 73 61 66 65 09 22 02   ...threadsafe...
+|   3888: 00 01 02 00 02 02 00 00 04 76 74 61 62 09 07 04   .........vtab...
+|   3904: 00 01 04 00 01 04 00 00 01 78 b4 01 01 01 01 02   .........x......
+|   3920: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+|   3936: 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01   ................
+|   3952: 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01   ................
+|   3968: 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01   ................
+|   3984: 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02   ................
+|   4000: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+|   4016: 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01   ................
+|   4032: 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01   ................
+|   4048: 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01   ................
+|   4064: 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02   ................
+|   4080: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 02 0f f5 00 0f fb 0f f5 00 00 00 00   ................
+|   4080: 00 00 00 00 00 05 04 08 09 01 02 04 04 08 08 09   ................
+| page 7 offset 24576
+|      0: 0d 00 00 00 05 0f b8 00 0f f4 0f e9 0f d6 0f c7   ................
+|     16: 0f b8 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 0d 05 02 23 61 75 74 6f   ...........#auto
+|   4032: 6d 65 72 67 65 3d 35 0d 04 02 23 6d 65 72 67 65   merge=5...#merge
+|   4048: 3d 31 30 30 2c 38 11 03 02 2b 69 6e 74 65 67 72   =100,8...+integr
+|   4064: 69 74 79 2d 63 68 65 63 6b 09 02 02 1b 72 65 62   ity-check....reb
+|   4080: 75 69 6c 64 0a 01 02 1d 6f 70 74 69 6d 69 7a 65   uild....optimize
+| end crash-c666cfde112dee.db
+}]} {}
+
+do_catchsql_test 13.1 {
+  SELECT quote(matchinfo(t1,'pcxybs'))==0 FROM t1 WHERE b MATCH 'e*';
+} {0 {}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 14.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 28672 pagesize 4096 filename crash-f7b636a855e1d2.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 07   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 06 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 0e ef 00 07 0d 4d 00 0f bd 0f 5f   ..........M...._
+|    112: 0e f7 0e 06 0e bc 0d a4 0d 4d 00 00 00 00 00 00   .........M......
+|   3392: 00 00 00 00 00 00 00 00 00 00 00 00 00 55 07 07   .............U..
+|   3408: 17 1b 1b 01 81 01 74 61 62 6c 65 74 31 5f 73 74   ......tablet1_st
+|   3424: 61 74 74 31 5f 73 74 61 74 07 43 52 45 41 54 45   att1_stat.CREATE
+|   3440: 20 54 41 42 4c 45 20 27 74 31 5f 73 74 61 74 27    TABLE 't1_stat'
+|   3456: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   (id INTEGER PRIM
+|   3472: 41 52 59 20 4b 45 59 2c 20 76 61 6c 75 65 20 42   ARY KEY, value B
+|   3488: 4c 4f 42 29 60 06 07 17 21 21 01 81 0b 74 61 62   LOB)`...!!...tab
+|   3504: 6c 65 74 31 5f 64 6f 63 73 69 7a 65 74 31 5f 64   let1_docsizet1_d
+|   3520: 6f 63 73 69 7a 65 06 43 52 45 41 54 45 20 54 41   ocsize.CREATE TA
+|   3536: 42 4c 45 20 27 74 31 5f 64 6f 63 73 69 7a 65 27   BLE 't1_docsize'
+|   3552: 28 64 6f 63 69 64 20 49 4e 54 45 47 45 52 20 50   (docid INTEGER P
+|   3568: 52 49 4d 41 52 59 20 4b 45 59 2c 20 73 69 7a 65   RIMARY KEY, size
+|   3584: 20 42 4c 4f 42 29 81 33 04 07 17 1f 1f 01 82 35    BLOB).3.......5
+|   3600: 74 61 62 6c 65 74 31 5f 73 65 67 64 69 72 74 31   tablet1_segdirt1
+|   3616: 5f 73 65 67 64 69 25 04 43 52 45 41 54 45 20 54   _segdi%.CREATE T
+|   3632: 41 42 4c 45 20 27 74 31 5f 73 65 67 64 69 72 27   ABLE 't1_segdir'
+|   3648: 28 6c 65 76 65 6c 20 49 4e 54 45 47 45 52 2c 69   (level INTEGER,i
+|   3664: 64 78 20 49 4e 54 45 47 45 52 2c 73 74 61 72 74   dx INTEGER,start
+|   3680: 5f 62 6c 6f 63 6b 20 49 4e 54 45 47 45 52 2c 6c   _block INTEGER,l
+|   3696: 65 61 76 65 73 5f 65 6e 64 5f 62 6c 6f 63 6b 20   eaves_end_block 
+|   3712: 49 4e 54 45 47 45 52 2c 65 6e 64 5f 62 6c 6f 63   INTEGER,end_bloc
+|   3728: 6b 20 49 4e 54 45 47 45 52 2c 72 6f 6f 74 20 42   k INTEGER,root B
+|   3744: 4c 4f 42 2c 50 52 49 4d 41 52 59 20 4b 45 59 28   LOB,PRIMARY KEY(
+|   3760: 6c 65 76 65 6c 2c 20 69 64 78 29 29 31 05 06 17   level, idx))1...
+|   3776: 45 1f 01 00 69 6e 64 65 78 73 71 6c 69 74 65 5f   E...indexsqlite_
+|   3792: 61 75 74 6f 69 6e 64 65 78 5f 74 31 5f 73 65 67   autoindex_t1_seg
+|   3808: 64 69 72 5f 31 74 31 5f 73 65 67 64 69 72 05 00   dir_1t1_segdir..
+|   3824: 00 00 08 00 00 00 00 66 03 07 17 23 23 01 81 13   .......f...##...
+|   3840: 74 61 62 6c 65 74 31 5f 73 65 67 6d 65 6e 74 73   tablet1_segments
+|   3856: 74 31 5f 73 65 67 6d 65 6e 74 73 03 43 52 45 41   t1_segments.CREA
+|   3872: 54 45 20 54 41 42 4c 45 20 27 74 31 5f 73 65 67   TE TABLE 't1_seg
+|   3888: 6d 65 6e 74 73 27 28 62 6c 6f 63 6b 69 64 20 49   ments'(blockid I
+|   3904: 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b   NTEGER PRIMARY K
+|   3920: 45 59 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42 29 5c   EY, block BLOB).
+|   3936: 02 07 17 21 21 01 81 03 74 61 62 6c 65 74 31 5f   ...!!...tablet1_
+|   3952: 63 6f 6e 74 65 6e 74 74 31 5f 63 6f 6e 74 65 6e   contentt1_conten
+|   3968: 74 02 43 52 45 41 54 45 20 54 41 42 4c 45 20 27   t.CREATE TABLE '
+|   3984: 74 31 5f 63 6f 6e 74 65 6e 74 27 28 64 6f 63 69   t1_content'(doci
+|   4000: 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52   d INTEGER PRIMAR
+|   4016: 59 20 4b 45 59 2c 20 27 63 30 61 27 29 41 01 06   Y KEY, 'c0a')A..
+|   4032: 17 11 11 08 71 74 61 62 6c 65 74 31 74 31 43 52   ....qtablet1t1CR
+|   4048: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4064: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 34   LE t1 USING fts4
+|   4080: 28 61 2c 70 72 65 66 69 78 3d 27 31 2c 32 27 29   (a,prefix='1,2')
+| page 2 offset 4096
+|      0: 0d 00 00 00 08 0e 1f 00 0f c4 0f 7c 0f 34 0f 07   ...........|.4..
+|     16: 0e c3 0e 97 0e 63 0e 1f 00 00 00 00 00 00 00 00   .....c..........
+|   3600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 42   ...............B
+|   3616: 08 04 00 81 09 73 75 6e 74 20 69 6e 20 63 75 6c   .....sunt in cul
+|   3632: 70 61 20 71 75 69 20 6f 66 66 69 63 69 61 20 64   pa qui officia d
+|   3648: 65 73 65 72 75 6e 74 20 6d 6f 6c 6c 69 74 20 61   eserunt mollit a
+|   3664: 6e 69 6d 20 69 64 20 65 73 74 20 6c 61 62 6f 72   nim id est labor
+|   3680: 75 6d 2e 32 07 03 01 6b 45 78 63 65 70 74 65 75   um.2...kExcepteu
+|   3696: 72 20 73 69 6e 74 20 6f 63 63 61 65 63 61 74 20   r sint occaecat 
+|   3712: 63 75 70 69 64 61 74 61 74 20 6e 6f 6e 20 70 72   cupidatat non pr
+|   3728: 6f 69 64 65 6e 74 2c 2a 06 03 00 5b 63 69 6c 6c   oident,*...[cill
+|   3744: 75 6d 20 64 6f 6c 6f 72 65 20 65 75 20 66 75 67   um dolore eu fug
+|   3760: 69 61 74 20 6e 75 6c 6c 61 20 70 61 72 69 61 74   iat nulla pariat
+|   3776: 75 72 2e 43 05 04 00 81 09 44 75 69 73 20 61 75   ur.C.....Duis au
+|   3792: 74 65 20 69 72 75 72 65 20 64 6f 6c 6f 72 20 69   te irure dolor i
+|   3808: 6e 20 72 65 70 72 65 68 65 6e 64 65 72 69 74 20   n reprehenderit 
+|   3824: 69 6e 20 76 6f 6c 75 70 74 61 74 65 20 76 65 6c   in voluptate vel
+|   3840: 69 74 20 65 73 73 65 2b 14 03 00 5d 6e 69 73 69   it esse+...]nisi
+|   3856: 20 75 74 20 61 6c 69 71 75 69 70 20 65 78 20 65    ut aliquip ex e
+|   3872: 61 20 63 6f 6d 6d 6f 64 6f 20 63 6f 6e 73 65 71   a commodo conseq
+|   3888: 75 61 74 2e 46 03 04 00 81 11 55 74 20 65 6e 69   uat.F.....Ut eni
+|   3904: 6d 20 61 64 20 6d 69 6e 69 6d 20 76 65 6e 69 61   m ad minim venia
+|   3920: 6d 2c 20 71 75 69 73 20 6e 6f 73 74 72 75 64 20   m, quis nostrud 
+|   3936: 65 78 65 72 63 69 74 61 74 69 6f 6e 20 75 6c 6c   exercitation ull
+|   3952: 61 6d 63 6f 20 6c 61 62 6f 72 69 73 46 02 04 00   amco laborisF...
+|   3968: 81 11 73 65 64 20 64 6f 20 65 69 75 73 6d 6f 64   ..sed do eiusmod
+|   3984: 20 74 65 6d 70 6f 72 20 69 6e 63 69 64 69 64 75    tempor incididu
+|   4000: 6e 74 20 75 74 20 6c 61 62 6f 72 65 20 65 74 20   nt ut labore et 
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+|   4032: 71 75 61 2e 3a 01 03 00 7b 4c 6f 72 65 6d 20 69   qua.:....Lorem i
+|   4048: 70 73 75 6d 20 64 6f 6c 6f 72 20 73 69 74 20 61   psum dolor sit a
+|   4064: 6d 65 74 2c 20 63 6f 6e 73 65 63 74 65 74 75 72   met, consectetur
+|   4080: 20 61 64 69 70 69 73 63 69 6e 67 20 65 6c 69 74    adipiscing elit
+| page 3 offset 8192
+|      0: 0d 00 00 00 00 10 00 00 00 00 00 00 00 00 00 00   ................
+| page 4 offset 12288
+|      0: 0d 00 00 00 03 0a a6 00 0d 57 0c 4a 0a a6 00 00   .........W.J....
+|   2720: 00 00 00 00 00 00 83 21 03 08 02 08 08 08 17 86   .......!........
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+|   2752: 02 04 00 01 01 6c 06 02 0c 00 02 04 00 01 01 6d   .....l.........m
+|   2768: 03 01 06 00 01 01 6e 03 08 09 00 01 01 75 03 05   ......n......u..
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+|   2816: 02 64 65 03 08 07 00 01 01 6f 0d 01 04 00 01 03   .de......o......
+|   2832: 09 00 03 05 00 01 03 00 01 01 75 03 05 02 00 00   ..........u.....
+|   2848: 02 65 61 03 04 06 00 01 01 69 03 02 04 00 01 01   .ea......i......
+|   2864: 6c 03 01 09 00 01 01 6e 03 03 03 00 01 01 73 06   l......n......s.
+|   2880: 05 0b 00 03 0b 00 01 01 74 03 02 09 00 01 01 75   ........t......u
+|   2896: 03 06 04 00 01 01 78 09 03 09 00 01 05 00 03 02   ......x.........
+|   2912: 00 00 02 66 75 03 06 05 00 00 02 69 64 03 08 0a   ...fu......id...
+|   2928: 00 01 01 6e 0a 02 06 00 03 06 04 00 03 03 00 01   ...n............
+|   2944: 01 70 03 01 13 00 01 01 72 03 05 04 00 00 02 6c   .p......r......l
+|   2960: 61 09 02 08 00 01 0b 00 05 0c 00 01 01 6f 03 01   a............o..
+|   2976: 02 00 00 02 6d 61 03 02 0b 00 01 01 69 03 04 05   ....ma......i...
+|   2992: 00 01 01 6f 03 08 08 00 00 02 6e 69 03 04 02 00   ...o......ni....
+|   3008: 01 01 6f 06 03 08 00 04 06 00 01 01 75 03 06 06   ..o.........u...
+|   3024: 00 00 02 6f 63 03 07 04 00 01 01 66 03 08 06 00   ...oc......f....
+|   3040: 00 02 70 61 03 06 07 00 01 01 72 03 07 07 00 00   ..pa......r.....
+|   3056: 02 71 75 06 03 07 00 05 05 00 00 02 72 65 03 05   .qu.........re..
+|   3072: 07 00 00 02 73 65 03 02 02 00 01 01 69 06 01 05   ....se......i...
+|   3088: 00 06 03 00 01 01 75 03 08 02 00 00 02 74 65 03   ......u......te.
+|   3104: 03 05 00 00 02 75 6c 03 03 0a 00 01 01 74 09 02   .....ul......t..
+|   3120: 07 00 01 02 00 01 03 00 00 02 76 65 06 03 06 00   ..........ve....
+|   3136: 02 0a 00 01 01 6f 03 05 09 00 82 0a 02 08 02 08   .....o..........
+|   3152: 08 08 17 84 02 04 00 30 20 32 35 31 00 01 61 13   .......0 251..a.
+|   3168: 01 06 04 00 01 0c 00 01 04 00 01 04 00 01 03 00   ................
+|   3184: 03 09 00 00 01 63 10 01 07 00 03 07 03 00 02 02   .....c..........
+|   3200: 00 01 05 00 01 04 00 00 01 64 11 01 04 00 01 03   .........d......
+|   3216: 09 00 03 02 05 00 01 03 00 02 07 00 00 01 65 1b   ..............e.
+|   3232: 01 09 00 01 04 07 00 01 03 08 00 01 05 03 00 01   ................
+|   3248: 0b 00 01 04 00 01 02 00 01 0b 00 00 01 66 03 06   .............f..
+|   3264: 05 00 00 01 69 0f 01 03 00 01 06 00 03 04 04 04   ....i...........
+|   3280: 00 03 03 09 00 00 01 6c 0c 01 02 00 01 08 00 01   .......l........
+|   3296: 0b 00 05 0c 00 00 01 6d 09 02 0b 00 01 05 00 05   .......m........
+|   3312: 08 00 00 01 6e 0c 03 08 00 01 02 00 02 06 00 01   ....n...........
+|   3328: 06 00 00 01 6f 06 07 04 00 01 06 00 00 01 70 06   ....o.........p.
+|   3344: 06 07 00 01 07 00 00 01 71 06 03 07 00 05 05 00   ........q.......
+|   3360: 00 01 72 03 05 08 00 00 01 73 0c 01 05 00 01 02   ..r......s......
+|   3376: 00 05 03 00 01 02 00 00 01 74 03 02 05 00 00 01   .........t......
+|   3392: 75 0a 02 07 00 01 02 0a 00 01 03 00 00 01 76 07   u.............v.
+|   3408: 03 06 00 02 09 03 00 85 26 01 08 08 08 08 08 17   ........&.......
+|   3424: 8a 3e 30 20 36 36 35 00 02 61 64 03 03 04 00 02   .>0 665..ad.....
+|   3440: 08 69 70 69 73 63 69 6e 67 03 01 08 00 01 05 6c   .ipiscing......l
+|   3456: 69 71 75 61 03 02 0c 00 05 02 69 70 03 04 04 00   iqua......ip....
+|   3472: 01 03 6d 65 74 03 01 06 00 01 03 6e 69 6d 03 08   ..met......nim..
+|   3488: 09 00 01 03 75 74 65 03 05 03 00 00 06 63 69 6c   ....ute......cil
+|   3504: 6c 75 6d 03 06 02 00 01 06 6f 6d 6d 6f 64 6f 03   lum......ommodo.
+|   3520: 04 07 00 02 09 6e 73 65 63 74 65 74 75 72 03 01   .....nsectetur..
+|   3536: 07 00 05 04 71 75 61 74 03 04 08 00 01 04 75 6c   ....quat......ul
+|   3552: 70 61 03 08 04 00 02 07 70 69 64 61 74 61 74 03   pa......pidatat.
+|   3568: 07 05 00 00 08 64 65 73 65 72 75 6e 74 03 08 07   .....deserunt...
+|   3584: 00 01 01 6f 03 02 03 00 02 03 6c 6f 72 06 01 04   ...o......lor...
+|   3600: 00 04 05 00 05 01 65 06 02 0a 00 04 03 00 01 03   ......e.........
+|   3616: 75 69 73 03 05 02 00 00 02 65 61 03 04 06 00 01   uis......ea.....
+|   3632: 06 69 75 73 6d 6f 64 03 02 04 00 01 03 6c 69 74   .iusmod......lit
+|   3648: 03 01 09 00 01 03 6e 69 6d 03 03 03 00 01 03 73   ......nim......s
+|   3664: 73 65 03 05 0b 00 02 01 73 03 08 0b 00 01 01 74   se......s......t
+|   3680: 03 02 09 00 01 01 75 03 06 04 00 01 01 78 03 04   ......u......x..
+|   3696: 05 00 02 07 63 65 70 74 65 75 72 03 07 02 00 02   ....cepteur.....
+|   3712: 0a 65 72 63 69 74 61 74 69 6f 6e 03 03 09 00 00   .ercitation.....
+|   3728: 06 66 75 67 69 61 74 03 06 05 00 00 02 69 64 03   .fugiat......id.
+|   3744: 08 0a 00 01 01 6e 07 05 06 04 00 03 03 00 02 08   .....n..........
+|   3760: 63 69 64 69 64 75 6e 74 03 02 06 00 01 04 70 73   cididunt......ps
+|   3776: 75 6d 03 01 03 00 01 04 72 75 72 65 03 05 04 00   um......rure....
+|   3792: 00 06 6c 61 62 6f 72 65 03 02 08 00 05 02 69 73   ..labore......is
+|   3808: 03 03 0b 00 05 02 75 6d 03 08 0c 00 01 04 6f 72   ......um......or
+|   3824: 65 6d 03 01 02 00 00 05 6d 61 67 6e 61 03 02 0b   em......magna...
+|   3840: 00 01 04 69 6e 69 6d 03 03 05 00 01 05 6f 6c 6c   ...inim......oll
+|   3856: 69 74 03 08 08 00 00 04 6e 69 73 69 03 04 02 00   it......nisi....
+|   3872: 01 02 6f 6e 03 07 06 00 02 05 73 74 72 75 64 03   ..on......strud.
+|   3888: 03 08 00 01 04 75 6c 6c 61 03 06 06 00 00 08 6f   .....ulla......o
+|   3904: 63 63 61 65 63 61 74 03 07 04 00 01 06 66 66 69   ccaecat......ffi
+|   3920: 63 69 61 03 08 06 00 00 08 70 61 72 69 61 74 75   cia......pariatu
+|   3936: 72 03 06 07 00 01 07 72 6f 69 64 65 6e 74 03 07   r......roident..
+|   3952: 07 00 00 03 71 75 69 03 08 05 00 03 01 73 03 03   ....qui......s..
+|   3968: 07 00 00 0d 72 65 70 72 65 68 65 6e 64 65 72 69   ....reprehenderi
+|   3984: 74 03 05 07 00 00 03 73 65 64 03 02 02 00 01 03   t......sed......
+|   4000: 69 6e 74 03 07 03 00 02 01 74 03 01 05 00 01 03   int......t......
+|   4016: 75 6e 74 03 08 02 00 00 06 74 65 6d 70 6f 72 03   unt......tempor.
+|   4032: 02 05 00 00 07 75 6c 6c 61 6d 63 6f 03 03 0a 00   .....ullamco....
+|   4048: 01 01 74 09 02 07 00 01 02 00 01 03 00 00 05 76   ..t............v
+|   4064: 65 6c 69 74 03 05 0a 00 02 04 6e 69 61 6d 03 03   elit......niam..
+|   4080: 06 00 01 08 6f 6c 75 70 74 61 74 65 03 05 09 00   ....oluptate....
+| page 5 offset 16384
+|      0: 0a 00 00 00 03 0f eb 00 0f fb 0f f3 0f eb 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 07 04 02 08 01   ................
+|   4080: 08 00 03 07 04 02 08 01 04 00 02 04 04 08 08 09   ................
+| page 6 offset 20480
+|      0: 0d 00 00 00 08 0f d0 00 0f fa 0f f4 0f ee 0f e8   ................
+|     16: 0f e2 0f dc 0f d6 0f d0 00 00 00 00 00 00 00 00   ................
+|   4048: 04 08 03 00 0e 0b 04 07 03 00 0e 06 04 06 03 00   ................
+|   4064: 0e 06 04 05 03 00 0e 0a 04 04 03 00 0e 07 04 03   ................
+|   4080: 03 00 0e 0a 04 02 03 00 0e 0b 04 01 03 00 0e 08   ................
+| page 7 offset 24576
+|      0: 0d 00 00 00 01 0f f7 00 0f f7 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 07 00 03 00 14 08 45 b5 03   .............E..
+| end crash-f7b636a855e1d2.db
+}]} {}
+
+do_execsql_test 14.1 {
+  PRAGMA writable_schema = 1;
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<10)
+    INSERT INTO t1(a) SELECT randomblob(3000) FROM c;
+}
+
+do_catchsql_test 14.2 {
+  INSERT INTO t1(t1) VALUES('optimize');
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 15.0 {
+  CREATE VIRTUAL TABLE t1 USING fts3(a, content="");
+  INSERT INTO t1_segdir VALUES(0,0,0,0,'0 665',X'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');
+}
+
+do_execsql_test 15.1 {
+  SELECT quote(matchinfo(t1, t1 ))==0 FROM t1 WHERE t1 MATCH 'e*';
+} {0 0 0 0 0 0}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 16.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 28672 pagesize 4096 filename crash-de7e8cb026385a.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 07   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 06 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 0e ef 00 07 0d 4d 00 0f bd 0f 5f   ..........M...._
+|    112: 0e f7 0e 06 0e bc 0d a4 0d 4d 00 00 00 00 00 00   .........M......
+|   3392: 00 00 00 00 00 00 00 00 00 00 00 00 00 55 07 07   .............U..
+|   3408: 17 1b 1b 01 81 01 74 61 62 6c 65 74 31 5f 73 74   ......tablet1_st
+|   3424: 61 74 74 31 5f 73 74 61 74 07 43 52 45 41 54 45   att1_stat.CREATE
+|   3440: 20 54 41 42 4c 45 20 27 74 31 5f 73 74 61 74 27    TABLE 't1_stat'
+|   3456: 28 69 64 20 49 af 54 45 47 45 52 20 50 52 49 4d   (id I.TEGER PRIM
+|   3472: 41 52 59 20 4b 45 59 2c 20 76 61 6c 75 65 20 42   ARY KEY, value B
+|   3488: 4c 4f 42 29 60 06 07 17 21 21 01 81 0b 74 61 62   LOB)`...!!...tab
+|   3504: 6c 65 74 31 5f 64 6f 63 73 69 7a 65 74 31 5f 64   let1_docsizet1_d
+|   3520: 6f 63 73 69 7a 65 06 43 52 45 41 54 45 20 54 41   ocsize.CREATE TA
+|   3536: 42 4c 45 20 27 74 31 5f 64 6f 63 73 69 7a 65 27   BLE 't1_docsize'
+|   3552: 28 64 6f 63 69 64 20 49 4e 54 45 47 45 52 20 50   (docid INTEGER P
+|   3568: 52 49 4d 41 52 59 20 4b 45 59 2c 20 73 69 7a 65   RIMARY KEY, size
+|   3584: 20 42 4c 4f 42 29 81 33 04 07 17 1f 1f 01 82 35    BLOB).3.......5
+|   3600: 74 61 62 6c 65 74 31 5f 73 65 67 64 69 72 74 31   tablet1_segdirt1
+|   3616: 5f 73 65 67 64 69 72 04 43 52 45 41 54 45 20 54   _segdir.CREATE T
+|   3632: 41 42 4c 45 20 27 74 31 5f 73 65 67 64 69 72 27   ABLE 't1_segdir'
+|   3648: 28 6c 65 76 65 6c 20 49 4e 54 45 47 45 52 2c 69   (level INTEGER,i
+|   3664: 64 78 20 49 4e 54 45 47 45 52 2c 73 74 61 72 74   dx INTEGER,start
+|   3680: 5f 62 6c 6f 63 6b 20 49 4e 54 45 47 45 52 2c 6c   _block INTEGER,l
+|   3696: 65 61 76 65 73 5f 65 6e 64 5f 62 6c 6f 63 6b 20   eaves_end_block 
+|   3712: 49 4e 54 45 47 45 52 2c 65 6e 64 5f 62 6c 6f 63   INTEGER,end_bloc
+|   3728: 6b 20 49 4e 54 45 47 45 52 2c 72 6f 6f 74 20 42   k INTEGER,root B
+|   3744: 4c 4f 42 2c 50 52 49 4d 41 52 59 20 4b 45 59 28   LOB,PRIMARY KEY(
+|   3760: 6c 65 76 65 6c 2c 20 69 64 78 29 29 31 05 06 17   level, idx))1...
+|   3776: 45 1f 01 00 69 6e 64 65 78 73 71 6c 69 74 65 5f   E...indexsqlite_
+|   3792: 61 75 74 6f 69 6e 64 65 78 5f 74 31 5f 73 65 67   autoindex_t1_seg
+|   3808: 64 69 72 5f 31 74 31 5f 73 65 67 64 69 72 05 00   dir_1t1_segdir..
+|   3824: 00 00 08 00 00 00 00 66 03 07 17 23 23 01 81 13   .......f...##...
+|   3840: 74 61 62 6c 65 74 31 5f 73 65 67 6d 65 6e 74 73   tablet1_segments
+|   3856: 74 31 5f 73 65 67 6d 65 6e 74 73 03 43 52 45 41   t1_segments.CREA
+|   3872: 54 45 20 54 41 42 4c 45 20 27 74 31 5f 73 65 67   TE TABLE 't1_seg
+|   3888: 6d 65 6e 74 73 27 28 62 6c 6f 63 6b 69 64 20 49   ments'(blockid I
+|   3904: 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b   NTEGER PRIMARY K
+|   3920: 45 59 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42 29 5c   EY, block BLOB).
+|   3936: 02 07 17 21 21 01 81 03 74 61 62 6c 65 74 31 5f   ...!!...tablet1_
+|   3952: 63 6f 6e 74 65 6e 74 74 31 5f 63 6f 6e 74 65 6e   contentt1_conten
+|   3968: 74 02 43 52 45 41 54 45 20 54 41 42 4c 45 20 27   t.CREATE TABLE '
+|   3984: 74 31 5f 63 6f 6e 74 65 6e 74 27 28 64 6f 63 69   t1_content'(doci
+|   4000: 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52   d INTEGER PRIMAR
+|   4016: 59 20 4b 45 59 2c 20 27 63 30 61 27 29 41 01 06   Y KEY, 'c0a')A..
+|   4032: 17 11 11 08 71 74 61 62 6c 65 74 31 74 31 43 52   ....qtablet1t1CR
+|   4048: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4064: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 34   LE t1 USING fts4
+|   4080: 28 61 2c 70 72 65 66 69 78 3d 27 31 2c 32 27 29   (a,prefix='1,2')
+| page 2 offset 4096
+|      0: 0d 00 00 00 08 0e 1f 00 0f c4 0f 7c 0f 34 0f 07   ...........|.4..
+|     16: 0e c3 0e 97 0e 63 0e 1f 00 00 00 00 00 00 00 00   .....c..........
+|   3600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 42   ...............B
+|   3616: 08 04 00 81 09 73 75 6e 74 20 69 6e 20 63 75 6c   .....sunt in cul
+|   3632: 70 61 20 71 75 69 20 6f 66 66 69 63 69 61 20 64   pa qui officia d
+|   3648: 65 73 65 72 75 6e 74 20 6d 6f 6c 6c 69 74 20 61   eserunt mollit a
+|   3664: 6e 69 6d 20 69 64 20 65 73 74 20 6c 61 62 6f 72   nim id est labor
+|   3680: 75 6d 2e 32 07 03 00 6b 45 78 63 65 70 74 65 75   um.2...kExcepteu
+|   3696: 72 20 73 69 6e 74 20 6f 63 63 61 65 63 61 74 20   r sint occaecat 
+|   3712: 63 75 70 69 64 61 74 61 74 20 6e 6f 6e 20 70 72   cupidatat non pr
+|   3728: 6f 69 64 65 6e 74 2c 2a 06 03 00 5b 63 69 6c 6c   oident,*...[cill
+|   3744: 75 6d 20 64 6f 6c 6f 72 65 20 65 75 20 66 75 67   um dolore eu fug
+|   3760: 69 61 74 20 6e 75 6c 6c 61 20 70 61 72 69 61 74   iat nulla pariat
+|   3776: 75 72 2e 42 05 04 00 81 09 44 75 69 73 20 61 75   ur.B.....Duis au
+|   3792: 74 65 20 69 72 75 72 65 21 64 6f 6c 6f 72 20 69   te irure!dolor i
+|   3808: 6e 20 72 65 70 72 65 68 65 6e 64 65 72 69 74 20   n reprehenderit 
+|   3824: 69 6e 20 76 6f 6c 75 70 74 61 74 65 20 76 65 6c   in voluptate vel
+|   3840: 69 74 20 65 73 74 65 2b 04 03 00 5d 6e 69 73 69   it este+...]nisi
+|   3856: 20 75 74 20 61 6c 69 71 75 69 70 20 65 78 20 65    ut aliquip ex e
+|   3872: 61 20 63 6f 6d 6d 6f 64 6f 20 63 6f 6e 73 65 71   a commodo conseq
+|   3888: 75 61 74 2e 46 03 04 00 81 11 55 74 20 65 6e 69   uat.F.....Ut eni
+|   3904: 6d 20 61 64 20 6d 69 6e 69 6d 20 76 65 6e 69 61   m ad minim venia
+|   3920: 6d 2c 20 71 75 69 73 20 6e 6f 73 74 72 75 64 20   m, quis nostrud 
+|   3936: 65 78 65 72 63 69 74 61 74 69 6f 6e 20 75 6c 6c   exercitation ull
+|   3952: 61 6d 63 6f 20 6c 61 62 6f 72 69 73 46 02 04 00   amco laborisF...
+|   3968: 81 11 73 65 64 20 64 6f 20 65 69 75 73 6d 6f 64   ..sed do eiusmod
+|   3984: 20 74 65 6d 70 6f 72 20 69 6e 63 69 64 69 64 75    tempor incididu
+|   4000: 6e 74 20 75 74 20 6c 61 62 6f 72 65 20 65 74 20   nt ut labore et 
+|   4016: 64 6f 6c 6f 72 65 20 6d 61 67 6e 61 20 51 6c 69   dolore magna Qli
+|   4032: 71 75 61 2e 3a 01 03 00 7b 4c 6f 72 65 6d 20 69   qua.:....Lorem i
+|   4048: 70 73 75 6d 20 64 6f 6c 6f 72 20 73 69 74 e5 61   psum dolor sit.a
+|   4064: 6d 65 74 2c 20 63 6f 6e 73 65 63 74 65 74 75 72   met, consectetur
+|   4080: 20 61 64 69 70 69 73 63 69 6e 67 20 65 6c 69 74    adipiscing elit
+| page 3 offset 8192
+|      0: 0d 00 00 00 00 10 00 00 00 00 00 00 00 00 00 00   ................
+| page 4 offset 12288
+|      0: 0d 00 00 00 03 0a a6 00 0d 57 0c 4a 0a a6 00 00   .........W.J....
+|   2720: 00 00 00 00 00 00 83 21 03 08 02 08 08 08 17 86   .......!........
+|   2736: 30 08 00 30 20 34 30 32 00 02 61 64 06 01 08 00   0..0 402..ad....
+|   2752: 02 04 00 01 01 6c 06 02 0c 00 02 04 00 01 01 6d   .....l.........m
+|   2768: 03 01 06 00 01 01 6e 03 08 09 00 01 01 75 03 05   ......n......u..
+|   2784: 03 00 00 02 63 69 03 06 02 00 01 01 6f 07 01 07   ....ci......o...
+|   2800: 00 03 07 03 00 01 01 75 06 07 05 00 01 04 00 00   .......u........
+|   2816: 02 64 65 03 08 07 00 01 01 6f 0d 01 04 00 01 03   .de......o......
+|   2832: 09 00 03 05 00 01 03 00 01 01 75 03 05 02 00 00   ..........u.....
+|   2848: 02 65 61 03 04 06 00 01 01 69 03 02 04 00 01 01   .ea......i......
+|   2864: 6c 03 01 09 00 01 01 6e 03 03 03 00 01 01 73 06   l......n......s.
+|   2880: 05 0b 00 03 0b 00 01 01 74 03 02 09 00 01 01 75   ........t......u
+|   2896: 03 06 04 00 01 01 78 09 03 09 00 01 05 00 03 02   ......x.........
+|   2912: 00 00 02 66 75 03 06 05 00 00 02 69 64 03 08 0a   ...fu......id...
+|   2928: 00 01 01 6e 0a 02 06 00 03 06 04 00 03 03 00 01   ...n............
+|   2944: 01 70 03 01 03 00 01 01 72 03 05 04 00 00 02 6c   .p......r......l
+|   2960: 61 09 02 08 00 01 0b 00 05 0c 00 01 01 6f 03 01   a............o..
+|   2976: 02 00 00 02 6d 61 03 02 0b 00 01 01 69 03 03 05   ....ma......i...
+|   2992: 00 01 01 6f 03 08 08 00 00 02 6e 69 03 04 02 00   ...o......ni....
+|   3008: 01 01 6f 06 03 08 00 04 06 00 01 01 75 03 06 06   ..o.........u...
+|   3024: 00 00 02 6f 63 03 07 04 00 01 01 66 03 08 06 00   ...oc......f....
+|   3040: 00 02 70 61 03 06 07 00 01 01 72 03 07 07 00 00   ..pa......r.....
+|   3056: 02 71 75 06 03 07 00 05 05 00 00 02 72 65 03 05   .qu.........re..
+|   3072: 07 00 00 02 73 65 03 02 02 00 01 01 69 06 01 05   ....se......i...
+|   3088: 00 06 03 00 01 01 75 03 08 02 00 00 02 74 65 03   ......u......te.
+|   3104: 02 05 00 00 02 75 6c 03 03 0a 00 01 01 74 09 02   .....ul......t..
+|   3120: 07 00 01 02 00 01 03 00 00 02 76 65 06 03 06 00   ..........ve....
+|   3136: 02 0a 00 01 01 6f 03 05 09 00 82 0a 02 08 12 08   .....o..........
+|   3152: 08 08 17 84 02 04 00 30 20 32 35 31 00 01 61 23   .......0 251..a#
+|   3168: 01 06 04 00 01 0c 00 01 04 00 01 04 00 01 03 00   ................
+|   3184: 03 09 00 00 01 63 10 01 07 00 03 07 03 00 02 02   .....c..........
+|   3200: 00 01 05 00 01 04 00 00 01 64 11 01 04 00 01 03   .........d......
+|   3216: 09 00 03 02 05 00 01 13 00 02 07 00 00 01 65 1b   ..............e.
+|   3232: 01 09 00 01 04 07 00 01 03 08 00 01 05 03 00 01   ................
+|   3248: 0b 00 01 04 00 01 02 00 01 0b 00 00 01 66 03 06   .............f..
+|   3264: 05 00 00 01 69 0f 01 03 00 01 06 00 03 04 04 04   ....i...........
+|   3280: 00 03 03 09 00 00 01 6c 0c 01 02 00 01 08 00 01   .......l........
+|   3296: 0b 00 05 0c 00 10 01 6d 09 02 0b 00 01 05 00 05   .......m........
+|   3312: 08 00 00 01 6e 0c 03 08 00 01 02 00 02 06 00 01   ....n...........
+|   3328: 06 00 00 01 6f 06 07 04 00 01 06 00 00 01 70 06   ....o.........p.
+|   3344: 06 07 00 01 07 00 00 01 71 06 03 07 00 05 05 00   ........q.......
+|   3360: 00 01 72 03 05 07 00 00 01 73 0c 01 05 00 01 02   ..r......s......
+|   3376: 00 05 03 00 01 02 00 00 01 74 03 02 05 00 00 01   .........t......
+|   3392: 75 0a 02 07 00 01 02 0a 00 01 03 00 00 01 76 07   u.............v.
+|   3408: 03 06 00 02 09 03 00 85 26 01 08 08 08 08 08 17   ........&.......
+|   3424: 8a 3e 30 20 36 36 35 00 02 61 64 03 03 04 00 02   .>0 665..ad.....
+|   3440: 08 69 70 69 73 63 69 6e 67 03 01 08 00 01 05 6c   .ipiscing......l
+|   3456: 69 71 75 61 03 02 0c 00 05 02 69 70 03 04 04 00   iqua......ip....
+|   3472: 01 03 6d 65 74 03 01 06 00 01 03 6e 69 6d 03 08   ..met......nim..
+|   3488: 09 00 01 03 75 74 65 03 05 03 00 00 06 63 69 6c   ....ute......cil
+|   3504: 6c 75 6d 03 06 02 00 01 06 6f 6d 6d 6f 64 6f 03   lum......ommodo.
+|   3520: 04 07 00 02 09 6e 73 65 63 74 65 74 75 72 03 01   .....nsectetur..
+|   3536: 07 00 05 04 71 75 61 74 03 04 08 00 01 04 75 6c   ....quat......ul
+|   3552: 70 61 03 08 04 00 02 07 70 69 64 61 74 61 74 03   pa......pidatat.
+|   3568: 07 05 00 00 08 64 65 73 65 72 75 6e 74 03 08 07   .....deserunt...
+|   3584: 00 01 01 6f 03 02 03 00 02 03 6c 6f 72 06 01 04   ...o......lor...
+|   3600: 00 04 05 00 05 01 65 06 02 0a 00 04 03 00 01 03   ......e.........
+|   3616: 75 69 73 03 05 02 00 00 02 65 61 03 04 06 00 01   uis......ea.....
+|   3632: 06 69 75 73 6d 6f 64 03 02 04 00 01 03 6c 69 74   .iusmod......lit
+|   3648: 03 01 09 00 01 03 6e 69 6d 03 03 03 00 01 03 73   ......nim......s
+|   3664: 73 65 03 05 0b 00 02 01 74 03 08 0b 00 01 01 74   se......t......t
+|   3680: 03 02 09 00 01 01 75 03 06 04 00 01 01 78 03 04   ......u......x..
+|   3696: 05 00 02 07 63 65 70 74 65 75 72 03 07 02 00 02   ....cepteur.....
+|   3712: 0a 65 72 63 69 74 61 74 69 6f 6e 03 03 09 00 00   .ercitation.....
+|   3728: 06 66 75 67 69 61 74 03 06 05 00 00 02 69 64 03   .fugiat......id.
+|   3744: 08 0a 00 01 01 6e 07 05 06 04 00 03 03 00 02 08   .....n..........
+|   3760: 63 69 64 69 64 75 7e 74 03 02 06 00 01 04 70 73   cididu~t......ps
+|   3776: 75 6d 03 01 03 00 01 03 72 75 72 65 03 05 04 00   um......rure....
+|   3792: 00 06 6c 61 62 6f 72 65 03 02 08 00 05 02 69 73   ..labore......is
+|   3808: 03 03 0b 00 05 02 75 6d 03 08 0c 00 01 04 6f 72   ......um......or
+|   3824: 65 6d 03 01 02 00 00 05 6d 61 67 6e 61 03 02 0b   em......magna...
+|   3840: 00 01 04 69 6e 69 6d 03 03 05 00 01 05 6f 6c 6c   ...inim......oll
+|   3856: 69 74 03 08 08 00 00 04 6e 69 73 69 03 04 02 00   it......nisi....
+|   3872: 01 02 6f 6e 03 07 06 00 02 05 73 74 72 75 64 03   ..on......strud.
+|   3888: 03 08 00 01 04 75 6c 6c 61 03 06 06 00 00 08 6f   .....ulla......o
+|   3904: 63 63 61 65 63 61 74 03 07 04 00 01 06 66 66 69   ccaecat......ffi
+|   3920: 63 69 61 03 08 06 00 00 08 70 61 72 69 61 74 75   cia......pariatu
+|   3936: 72 03 06 07 00 01 07 72 6f 69 64 65 6e 74 03 07   r......roident..
+|   3952: 07 00 00 03 71 75 69 03 08 05 00 03 01 73 03 03   ....qui......s..
+|   3968: 07 00 00 0d 72 65 70 72 65 68 65 6e 64 65 72 69   ....reprehenderi
+|   3984: 74 03 05 07 00 00 03 73 65 64 03 02 02 00 01 03   t......sed......
+|   4000: 69 6e 74 03 07 03 00 02 01 74 03 01 05 00 01 03   int......t......
+|   4016: 75 6e 74 03 08 02 00 00 06 74 65 6d 70 6f 72 03   unt......tempor.
+|   4032: 02 05 00 00 07 75 6c 6c 61 6d 63 6f 03 03 0a 00   .....ullamco....
+|   4048: 01 01 74 09 02 07 00 01 02 00 01 03 00 00 05 76   ..t............v
+|   4064: 65 6c 69 74 03 05 0a 00 02 04 6e 69 61 6d 03 03   elit......niam..
+|   4080: 06 00 01 08 6f 6c 75 70 74 61 74 65 03 05 09 00   ....oluptate....
+| page 5 offset 16384
+|      0: 0a 00 00 00 03 0f eb 00 0f fb 0f f3 0f eb 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 07 04 02 08 01   ................
+|   4080: 08 00 03 07 04 02 08 03 a4 00 02 04 04 08 08 09   ................
+| page 6 offset 20480
+|      0: 0d 00 00 00 08 0f d0 00 0f fa 0f f4 0f ee 0f e8   ................
+|     16: 0f e2 0f dc 0f d6 0f d0 00 00 00 00 00 00 00 00   ................
+|   4048: 04 08 03 00 0e 0b 04 07 03 00 0e 06 04 06 03 00   ................
+|   4064: 0e 06 04 05 03 00 0e 0a 04 04 03 00 0e 07 04 03   ................
+|   4080: 03 00 0e 0a 04 02 03 00 0e 0b 04 01 03 00 0e 08   ................
+| page 7 offset 24576
+|      0: 0d 00 00 00 01 0f f7 00 0f f7 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 07 00 03 00 14 08 45 b5 03   .............E..
+| end crash-de7e8cb026385a.db
+}]} {}
+
+do_catchsql_test 16.1 {
+  INSERT INTO t1(t1) VALUES('optimize');
+} {0 {}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 17.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 28672 pagesize 4096 filename crash-f15972acf5bc1c.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 07   .....@  ........
+|     32: 00 00 00 02 00 00 00 01 00 00 00 07 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 0e b1 00 06 0d a4 00 0f 8d 0f 21   ...............!
+|    112: 0e b9 0d c8 0e 7e 0d a4 0d a4 00 00 00 00 00 00   .....~..........
+|   3488: 00 00 00 00 22 07 06 17 11 11 01 31 74 61 62 6c   ...........1tabl
+|   3504: 65 74 32 74 32 07 43 52 45 41 54 45 20 54 41 42   et2t2.CREATE TAB
+|   3520: 4c 45 20 74 32 28 78 29 81 33 05 07 17 1f 1f 01   LE t2(x).3......
+|   3536: 82 35 74 61 62 6c 65 74 31 5f 73 65 67 64 69 72   .5tablet1_segdir
+|   3552: 74 31 5f 73 65 67 64 69 72 05 43 52 45 41 54 45   t1_segdir.CREATE
+|   3568: 20 54 41 42 4c 45 20 27 74 31 5f 73 65 67 64 69    TABLE 't1_segdi
+|   3584: 72 27 28 6c 65 76 65 6c 20 49 4e 54 45 47 45 52   r'(level INTEGER
+|   3600: 2c 69 64 78 20 49 4e 54 45 47 45 52 2c 73 74 61   ,idx INTEGER,sta
+|   3616: 72 74 5f 62 6c 6f 63 6b 20 49 4e 54 45 47 45 52   rt_block INTEGER
+|   3632: 2c 6c 65 61 76 65 73 5f 65 6e 64 5f 62 6c 6f 63   ,leaves_end_bloc
+|   3648: 6b 20 49 4e 54 45 47 45 52 2c 65 6e 64 5f 62 6c   k INTEGER,end_bl
+|   3664: 6f 63 6b 20 49 4e 54 45 47 45 52 2c 72 6f 6f 74   ock INTEGER,root
+|   3680: 20 42 4c 4f 42 2c 50 52 49 4d 41 52 59 20 4b 45    BLOB,PRIMARY KE
+|   3696: 59 28 6c 65 76 65 6c 2c 20 69 64 78 29 29 31 06   Y(level, idx))1.
+|   3712: 06 17 45 1f 01 00 69 6e 64 65 78 73 71 6c 69 74   ..E...indexsqlit
+|   3728: 65 5f 61 75 74 6f 69 6e 64 65 78 5f 74 31 5f 73   e_autoindex_t1_s
+|   3744: 65 67 64 69 72 5f 31 74 31 5f 73 65 67 64 69 72   egdir_1t1_segdir
+|   3760: 06 0f c7 00 08 00 00 00 00 66 04 07 17 23 23 01   .........f...##.
+|   3776: 81 13 74 61 62 6c 65 74 31 5f 73 65 67 6d 65 6e   ..tablet1_segmen
+|   3792: 74 73 74 31 5f 73 65 67 6d 65 6e 74 73 04 43 52   tst1_segments.CR
+|   3808: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 73   EATE TABLE 't1_s
+|   3824: 65 67 6d 65 6e 74 73 27 28 62 6c 6f 63 6b 69 64   egments'(blockid
+|   3840: 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59    INTEGER PRIMARY
+|   3856: 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42    KEY, block BLOB
+|   3872: 29 6a 03 07 17 21 21 01 81 1f 74 61 62 6c 65 74   )j...!!...tablet
+|   3888: 31 5f 63 6f 6e 74 65 6e 74 74 31 5f 63 6f 6e 74   1_contentt1_cont
+|   3904: 65 6e 74 03 43 52 45 41 54 45 20 54 41 42 4c 45   ent.CREATE TABLE
+|   3920: 20 27 74 31 5f 63 6f 6e 74 65 6e 74 27 28 64 6f    't1_content'(do
+|   3936: 63 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   cid INTEGER PRIM
+|   3952: 41 52 59 20 4b 45 59 2c 20 27 63 30 61 27 2c 20   ARY KEY, 'c0a', 
+|   3968: 27 63 31 62 27 2c 20 27 63 32 63 27 29 38 02 06   'c1b', 'c2c')8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 33   LE t1 USING fts3
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 39 00 00 00 00 00   (a,b,c)...9.....
+| page 3 offset 8192
+|      0: 0d 00 00 00 25 0b 48 00 0f d8 0f af 0f 86 0f 74   ....%.H........t
+|     16: 0f 61 0f 4e 0f 2f 0f 0f 0e ef 0e d7 0e be 0e a5   .a.N./..........
+|     32: 0e 8d 0e 74 0e 5b 0e 40 0e 24 0e 08 0d ef 0d d5   ...t.[.@.$......
+|     48: 0d bb 0d a0 0d 84 03 28 0d 4f 0d 35 0d 1b 0c fb   .......(.O.5....
+|     64: 0c da 0c b9 0c 99 0c 78 0c 57 0c 3e 0c 24 0c 0a   .......x.W.>.$..
+|     80: 0b 48 00 00 00 00 00 00 00 00 00 00 00 00 00 00   .H..............
+|   2880: 00 00 00 00 00 00 00 00 81 3f 25 06 00 72 7f 00   .........?%..r..
+|   2896: 00 43 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e   .COMPILER=gcc-5.
+|   2912: 34 2e 30 20 32 30 31 36 30 36 30 39 20 44 45 42   4.0 20160609 DEB
+|   2928: 55 47 20 45 4e 41 42 4c 45 20 44 42 53 54 41 54   UG ENABLE DBSTAT
+|   2944: 20 56 54 41 42 20 45 4e 41 42 4c 45 20 46 54 53    VTAB ENABLE FTS
+|   2960: 34 20 45 4e 41 42 4c 45 20 46 54 53 35 20 45 4e   4 ENABLE FTS5 EN
+|   2976: 41 42 4c 45 20 47 45 4f 50 4f 4c 59 20 45 4e 41   ABLE GEOPOLY ENA
+|   2992: 42 4c 45 20 4a 53 4f 4e 31 20 45 4e 41 42 4c 45   BLE JSON1 ENABLE
+|   3008: 20 4d 45 4d 53 59 53 35 20 45 4e 41 42 4c 45 20    MEMSYS5 ENABLE 
+|   3024: 52 54 52 45 45 20 4d 41 58 20 4d 45 4d 4f 52 59   RTREE MAX MEMORY
+|   3040: 3d 35 30 30 30 30 30 30 30 20 4f 4d 49 54 20 4c   =50000000 OMIT L
+|   3056: 4f 41 43 20 45 58 54 45 4e 53 49 4f 4e 20 54 48   OAC EXTENSION TH
+|   3072: 52 45 41 44 53 41 46 45 3d 30 18 24 05 00 25 0f   READSAFE=0.$..%.
+|   3088: 19 54 48 52 45 41 44 53 41 46 45 3d 30 58 42 49   .THREADSAFE=0XBI
+|   3104: 4e 41 52 59 18 23 05 00 25 0f 19 54 48 52 45 41   NARY.#..%..THREA
+|   3120: 44 53 41 46 45 3d 30 58 4e 4f 43 41 53 45 17 22   DSAFE=0XNOCASE..
+|   3136: 05 00 25 0f 17 54 48 52 45 41 44 53 41 46 45 3d   ..%..THREADSAFE=
+|   3152: 30 58 52 54 52 49 4d 1f 21 05 00 33 0f 19 4f 4d   0XRTRIM.!..3..OM
+|   3168: 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49 4f   IT LOAD EXTENSIO
+|   3184: 4e 58 42 49 4e 41 52 59 1f 20 05 00 33 0f 19 4f   NXBINARY. ..3..O
+|   3200: 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49   MIT LOAD EXTENSI
+|   3216: 4f 4e 58 4e 4f 43 41 53 45 1e 1f 05 00 33 0f 17   ONXNOCASE....3..
+|   3232: 4f 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53   OMIT LOAD EXTENS
+|   3248: 49 4f 4e 58 52 54 52 49 4d 1f 1e 05 00 33 0f 19   IONXRTRIM....3..
+|   3264: 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30 30   MAX MEMORY=50000
+|   3280: 30 30 30 58 42 49 4e 41 52 59 1f 1d 05 00 33 0f   000XBINARY....3.
+|   3296: 19 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30   .MAX MEMORY=5000
+|   3312: 30 30 30 30 58 4e 4f 43 41 53 45 1e 1c 05 00 33   0000XNOCASE....3
+|   3328: 0f 17 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30   ..MAX MEMORY=500
+|   3344: 30 30 30 30 30 58 52 54 52 49 4d 18 1b 05 00 25   00000XRTRIM....%
+|   3360: 0f 19 45 4e 41 42 4c 45 20 52 54 52 45 45 58 42   ..ENABLE RTREEXB
+|   3376: 49 4e 41 52 59 18 1a 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3392: 4c 45 20 52 54 52 45 45 58 4e 4f 43 41 53 45 17   LE RTREEXNOCASE.
+|   3408: 19 05 00 25 0f 17 45 4e 41 42 4c 45 20 52 54 52   ...%..ENABLE RTR
+|   3424: 45 45 58 52 54 52 49 4d 1a 18 05 00 29 0f 19 45   EEXRTRIM....)..E
+|   3440: 4e 41 42 4c 45 20 4d 45 4d 53 59 53 35 58 42 49   NABLE MEMSYS5XBI
+|   3456: 4e 41 52 59 1a 17 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3472: 45 20 4d 45 4d 53 59 53 35 58 4e 4f 43 41 53 45   E MEMSYS5XNOCASE
+|   3488: 19 16 05 00 29 0f 17 45 4e 41 42 4c 45 20 4d 45   ....)..ENABLE ME
+|   3504: 4d 53 59 53 35 58 52 54 52 49 4d 18 14 05 00 25   MSYS5XRTRIM....%
+|   3520: 0f 19 45 4e 41 42 4c 45 20 4a 53 4f 4e 31 58 42   ..ENABLE JSON1XB
+|   3536: 49 4e 41 52 59 18 14 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3552: 4c 45 20 4a 53 4f 4e 31 58 4e 4f 43 41 53 45 17   LE JSON1XNOCASE.
+|   3568: 13 05 00 25 0f 17 45 4e 41 42 4c 45 20 4a 53 4f   ...%..ENABLE JSO
+|   3584: 4e 31 58 52 54 52 49 4d 1a 12 05 00 29 0f 19 45   N1XRTRIM....)..E
+|   3600: 4e 41 42 4c 45 20 47 45 4f 50 4f 4c 59 58 42 49   NABLE GEOPOLYXBI
+|   3616: 4e 41 52 59 1a 11 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3632: 45 20 47 45 4f 50 4f 4c 59 58 4e 4f 43 41 53 45   E GEOPOLYXNOCASE
+|   3648: 19 10 05 00 29 0f 17 45 4e 41 42 4c 45 20 47 45   ....)..ENABLE GE
+|   3664: 4f 50 4f 4c 59 58 52 54 52 49 4d 17 0f 05 00 23   OPOLYXRTRIM....#
+|   3680: 0f 19 45 4e 41 42 4c 45 20 46 54 53 35 58 42 49   ..ENABLE FTS5XBI
+|   3696: 4e 41 52 59 17 0e 05 00 23 0f 19 45 4e 41 42 4c   NARY....#..ENABL
+|   3712: 45 20 46 54 53 35 58 4e 4f 43 41 53 45 16 0d 05   E FTS5XNOCASE...
+|   3728: 00 23 0f 17 45 4e 41 42 4c 45 20 46 54 53 35 58   .#..ENABLE FTS5X
+|   3744: 52 54 52 49 4d 17 0c 05 00 23 0f 19 45 4e 41 42   RTRIM....#..ENAB
+|   3760: 4c 45 20 46 54 53 34 58 42 49 4e 41 52 59 17 0b   LE FTS4XBINARY..
+|   3776: 05 00 23 0f 19 45 4e 41 42 4c 45 20 46 54 53 34   ..#..ENABLE FTS4
+|   3792: 58 4e 4f 43 41 53 45 16 0a 05 00 23 0f 17 45 4e   XNOCASE....#..EN
+|   3808: 41 42 4c 45 20 46 54 53 34 58 52 54 52 49 4d 1e   ABLE FTS4XRTRIM.
+|   3824: 09 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3840: 54 41 54 20 56 54 41 42 58 42 49 4e 41 52 59 1e   TAT VTABXBINARY.
+|   3856: 08 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3872: 54 41 54 20 56 54 41 42 58 4e 4f 43 41 53 45 1d   TAT VTABXNOCASE.
+|   3888: 07 05 00 31 0f 17 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3904: 54 41 54 20 56 54 41 42 58 52 54 52 49 4d 11 06   TAT VTABXRTRIM..
+|   3920: 05 00 17 0f 19 44 45 42 55 47 58 42 49 4e 41 52   .....DEBUGXBINAR
+|   3936: 59 11 05 05 00 17 0e 19 44 45 42 55 47 58 4e 4f   Y.......DEBUGXNO
+|   3952: 43 41 53 45 10 04 05 00 17 0f 17 44 45 42 55 47   CASE.......DEBUG
+|   3968: 58 52 54 52 49 4d 27 03 05 00 43 0f 19 43 4f 4d   XRTRIM'...C..COM
+|   3984: 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e 30 20   PILER=gcc-5.4.0 
+|   4000: 32 30 31 36 30 36 30 39 58 42 49 4e 41 52 59 27   20160609XBINARY'
+|   4016: 02 05 00 43 0f 19 43 4f 4d 50 49 4c 45 52 3d 67   ...C..COMPILER=g
+|   4032: 63 63 2d 35 2e 34 2e 30 20 32 30 31 36 30 36 30   cc-5.4.0 2016060
+|   4048: 39 58 4e 4f 43 41 53 45 26 01 05 00 43 0f 17 43   9XNOCASE&...C..C
+|   4064: 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e   OMPILER=gcc-5.4.
+|   4080: 30 20 32 30 31 36 30 36 30 39 58 52 54 52 49 4d   0 20160609XRTRIM
+| page 4 offset 12288
+|      0: 0d 00 00 00 00 10 00 00 00 00 00 00 00 00 00 00   ................
+| page 5 offset 16384
+|      0: 0d 00 00 00 02 0b a0 00 0c ad 0b a0 00 00 00 00   ................
+|   2976: 82 0a 02 08 08 09 08 08 17 84 06 30 20 32 35 33   ...........0 253
+|   2992: 00 01 30 04 25 06 1b 00 00 08 32 30 31 36 30 36   ..0.%.....201606
+|   3008: 30 39 03 25 07 00 00 01 34 03 25 05 00 00 01 35   09.%....4.%....5
+|   3024: 03 25 04 00 01 07 30 30 30 30 30 30 30 03 25 1a   .%....0000000.%.
+|   3040: 00 00 08 63 6f 6d 70 69 6c 65 72 03 25 02 00 00   ...compiler.%...
+|   3056: 06 64 62 73 74 61 74 03 25 0a 00 01 04 65 62 75   .dbstat.%....ebu
+|   3072: 67 03 25 08 00 00 06 65 6e 61 62 6c 65 09 25 09   g.%....enable.%.
+|   3088: 05 04 04 04 04 04 00 01 08 78 74 65 6e 73 69 6f   .........xtensio
+|   3104: 6e 03 25 1d 00 00 04 66 74 73 34 03 25 0d 00 03   n.%....fts4.%...
+|   3120: 01 35 03 25 0f 00 00 03 67 63 63 03 25 03 00 01   .5.%....gcc.%...
+|   3136: 06 65 6f 70 6f 6c 79 03 25 11 00 00 05 6a 73 6f   .eopoly.%....jso
+|   3152: 6e 31 03 25 13 00 00 04 6c 6f 61 64 03 25 1c 00   n1.%....load.%..
+|   3168: 00 03 6d 61 78 03 25 18 00 01 05 65 6d 6f 72 79   ..max.%....emory
+|   3184: 03 25 19 00 03 04 73 79 73 4d 03 25 15 00 00 04   .%....sysM.%....
+|   3200: 6f 6d 69 74 03 25 1b 00 00 05 72 74 72 65 65 03   omit.%....rtree.
+|   3216: 25 17 00 00 0a 74 68 72 65 61 64 73 61 66 65 03   %....threadsafe.
+|   3232: 25 0e 00 00 04 76 74 61 62 03 25 0b 00 86 50 01   %....vtab.%...P.
+|   3248: 08 08 08 08 08 17 8d 12 30 20 38 33 35 00 01 30   ........0 835..0
+|   3264: 12 01 06 00 01 06 00 01 06 00 1f 03 00 01 03 00   ................
+|   3280: 01 03 00 00 08 32 30 31 36 30 36 30 39 09 01 07   .....20160609...
+|   3296: 00 01 07 00 01 07 00 00 01 34 09 01 05 00 01 05   .........4......
+|   3312: 00 01 05 00 00 01 35 09 01 04 00 01 04 00 01 04   ......5.........
+|   3328: 00 01 07 30 30 30 30 30 30 30 09 1c 04 00 01 04   ...0000000......
+|   3344: 00 01 04 00 00 06 62 69 6e 61 72 79 3c 03 01 02   ......binary<...
+|   3360: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3376: 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00   ................
+|   3392: 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03   ................
+|   3408: 01 02 02 00 03 01 02 02 00 00 08 63 6f 6d 70 69   ...........compi
+|   3424: 6c 65 72 09 01 02 00 01 02 00 01 02 00 00 06 64   ler............d
+|   3440: 62 73 74 61 74 09 07 03 00 01 03 00 01 03 00 01   bstat...........
+|   3456: 04 65 62 75 67 09 04 02 00 01 02 00 01 02 00 00   .ebug...........
+|   3472: 06 65 6e 61 62 6c 65 3f 07 02 00 01 02 00 01 02   .enable?........
+|   3488: 00 01 02 00 01 02 00 01 02 00 01 02 00 01 02 00   ................
+|   3504: 01 02 00 01 02 00 01 02 00 01 02 00 01 02 00 01   ................
+|   3520: 02 00 01 02 00 01 02 00 01 02 00 01 02 00 01 02   ................
+|   3536: 00 01 02 00 01 02 00 01 08 78 74 65 6e 73 69 6f   .........xtensio
+|   3552: 6e 09 1f 04 00 01 04 00 01 04 00 00 04 66 74 73   n............fts
+|   3568: 34 09 0a 03 00 01 03 00 01 03 00 03 01 35 09 0d   4............5..
+|   3584: 03 00 01 03 00 01 03 00 00 03 67 63 63 09 01 03   ..........gcc...
+|   3600: 00 01 03 00 01 03 00 01 06 65 6f 70 6f 6c 79 09   .........eopoly.
+|   3616: 10 03 00 01 03 00 01 03 00 00 05 6a 73 6f 6e 31   ...........json1
+|   3632: 09 13 03 00 01 03 00 01 03 00 00 04 6c 6f 61 64   ............load
+|   3648: 09 1f 03 00 01 03 00 01 03 00 00 03 6d 61 78 09   ............max.
+|   3664: 1c 02 00 01 02 00 01 02 00 01 05 65 6d 6f 72 79   ...........emory
+|   3680: 09 1c 03 00 01 03 00 01 03 00 03 04 73 79 73 35   ............sys5
+|   3696: 09 16 03 00 01 03 00 01 03 00 00 06 6e 6f 63 61   ............noca
+|   3712: 73 65 3c 02 01 02 02 00 03 01 02 02 00 03 01 02   se<.............
+|   3728: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3744: 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00   ................
+|   3760: 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00 00   ................
+|   3776: 04 6f 6d 69 74 09 1f 02 00 01 02 00 01 02 00 00   .omit...........
+|   3792: 05 72 74 72 65 65 09 19 03 00 01 03 00 01 03 00   .rtree..........
+|   3808: 03 02 69 6d 3c 01 01 02 02 00 03 01 02 02 00 03   ..im<...........
+|   3824: 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01   ................
+|   3840: 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02   ................
+|   3856: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3872: 00 00 0a 74 68 72 65 61 64 73 61 66 65 09 22 02   ...threadsafe...
+|   3888: 00 01 02 00 01 02 00 00 04 76 74 61 62 09 07 04   .........vtab...
+|   3904: 00 01 04 00 01 04 00 00 01 78 b4 01 01 01 01 02   .........x......
+|   3920: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+|   3936: 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01   ................
+|   3952: 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01   ................
+|   3968: 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01   ................
+|   3984: 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02   ................
+|   4000: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+|   4016: 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01   ................
+|   4032: 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01   ................
+|   4048: 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01   ................
+|   4064: 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02   ................
+|   4080: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 02 0f f5 00 0f fb 0f f5 00 00 00 00   ................
+|   4080: 00 00 00 00 00 05 04 08 09 01 02 04 04 08 08 09   ................
+| page 7 offset 24576
+|      0: 0d 00 00 00 05 0f b8 00 0f f4 0f e9 10 d6 0f c7   ................
+|     16: 0f b8 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 0d 05 02 23 61 75 74 6f   ...........#auto
+|   4032: 6d 65 72 67 65 3d 35 0d 04 02 23 6d 65 72 67 65   merge=5...#merge
+|   4048: 3d 31 30 30 2c 38 11 03 02 2b 69 6e 74 65 67 72   =100,8...+integr
+|   4064: 69 74 79 2d 63 68 65 63 6b 09 02 02 1b 72 65 62   ity-check....reb
+|   4080: 75 69 6c 64 0a 01 02 1d 6f 70 74 69 6d 69 7a 65   uild....optimize
+| end crash-f15972acf5bc1c.db
+}]} {}
+
+do_execsql_test 17.1 {
+  BEGIN;
+    INSERT INTO t1(t1) SELECT x FROM t2;
+    UPDATE t1 SET b=quote(zeroblob(200)) WHERE a MATCH 'thread*';
+}
+
+do_execsql_test 17.2 {
+  INSERT INTO t1(t1) VALUES('optimize');
+}
+
+do_catchsql_test 17.3 {
+  DROP TABLE IF EXISTS t1;
+} {0 {}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 18.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 32768 pagesize 4096 filename crash-4ce32d0608aff1.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 07   .....@  ........
+|     32: 00 00 00 02 00 00 00 01 00 00 00 07 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 07 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 0e b1 00 06 0d a4 00 0f 8d 0f 21   ...............!
+|    112: 0e b9 0d c8 0e 7e 0d a4 0d a4 00 00 00 00 00 00   .....~..........
+|   3488: 00 00 00 00 22 07 06 17 11 11 01 31 74 61 62 6c   ...........1tabl
+|   3504: 65 74 32 74 32 07 43 52 45 41 54 45 20 54 41 42   et2t2.CREATE TAB
+|   3520: 4c 45 20 74 32 28 78 29 81 33 05 07 17 1f 1f 01   LE t2(x).3......
+|   3536: 82 35 74 61 62 6c 65 74 31 5f 73 65 67 64 69 72   .5tablet1_segdir
+|   3552: 74 31 5f 73 65 67 64 69 72 05 43 52 45 41 54 45   t1_segdir.CREATE
+|   3568: 20 54 41 42 4c 45 20 27 74 31 5f 73 65 67 64 69    TABLE 't1_segdi
+|   3584: 72 27 28 6c 65 76 65 6c 20 49 4e 54 45 47 45 52   r'(level INTEGER
+|   3600: 2c 69 64 78 20 49 4e 54 45 47 45 52 2c 73 74 61   ,idx INTEGER,sta
+|   3616: 72 74 5f 62 6c 6f 63 6b 20 49 4e 54 45 47 45 52   rt_block INTEGER
+|   3632: 2c 6c 65 61 76 65 73 5f 65 6e 64 5f 62 6c 6f 63   ,leaves_end_bloc
+|   3648: 6b 20 49 4e 54 45 47 45 52 2c 65 6e 64 5f 62 6c   k INTEGER,end_bl
+|   3664: 6f 63 6b 20 49 4e 54 45 47 45 62 2c 72 6f 6f 74   ock INTEGEb,root
+|   3680: 20 42 4c 4f 42 2c 50 52 49 4d 41 52 59 20 4b 45    BLOB,PRIMARY KE
+|   3696: 59 28 6c 65 76 65 6c 2c 20 69 64 78 29 29 31 06   Y(level, idx))1.
+|   3712: 06 17 45 1f 01 00 69 6e 64 65 78 73 71 6c 69 74   ..E...indexsqlit
+|   3728: 65 5f 61 75 74 6f 69 6e 64 65 78 5f 74 31 5f 73   e_autoindex_t1_s
+|   3744: 65 67 64 69 72 5f 31 74 31 5f 73 65 67 64 69 72   egdir_1t1_segdir
+|   3760: 06 0f c7 00 08 00 00 00 00 66 04 07 17 23 23 01   .........f...##.
+|   3776: 81 13 74 61 62 6c 65 74 31 5f 73 65 67 6d 65 6e   ..tablet1_segmen
+|   3792: 74 73 74 31 5f 73 65 67 6d 65 6e 74 73 04 43 52   tst1_segments.CR
+|   3808: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 73   EATE TABLE 't1_s
+|   3824: 65 67 6d 65 6e 74 73 27 28 62 6c 6f 63 6b 69 64   egments'(blockid
+|   3840: 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59    INTEGER PRIMARY
+|   3856: 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42    KEY, block BLOB
+|   3872: 29 6a 03 07 17 21 21 01 81 1f 74 61 62 6c 65 74   )j...!!...tablet
+|   3888: 31 5f 63 6f 6e 74 65 6e 74 74 31 5f 63 6f 6e 74   1_contentt1_cont
+|   3904: 65 6e 74 03 43 52 45 41 54 45 20 54 41 42 4c 45   ent.CREATE TABLE
+|   3920: 20 27 74 31 5f 63 6f 6e 74 65 6e 74 27 28 64 6f    't1_content'(do
+|   3936: 63 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   cid INTEGER PRIM
+|   3952: 41 52 59 20 4b 45 59 2c 20 27 63 30 61 27 2c 20   ARY KEY, 'c0a', 
+|   3968: 27 63 31 62 27 2c 20 27 63 32 63 27 29 38 02 06   'c1b', 'c2c')8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 33   LE t1 USING fts3
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 39 00 00 00 00 00   (a,b,c)...9.....
+| page 3 offset 8192
+|      0: 0d 00 00 00 25 0b 48 00 0f d8 0f af 0f 86 0f 74   ....%.H........t
+|     16: 0f 61 0f 4e 0f 2f 0f 0f 0e ef 0e d7 0e be 0e a5   .a.N./..........
+|     32: 0e 8d 0e 74 0e 5b 0e 40 0e 24 0e 08 0d ef 0d d5   ...t.[.@.$......
+|     48: 0d bb 0d a0 0d 84 0d 68 0d 4f 0d 35 0d 1b 0c fb   .......h.O.5....
+|     64: 0c da 0c b9 0c 99 0c 78 0c 57 0c 3e 0c 24 0c 0a   .......x.W.>.$..
+|     80: 0b 48 00 00 00 00 00 00 00 00 00 00 00 00 00 00   .H..............
+|   2880: 00 00 00 00 00 00 00 00 81 3f 25 06 00 82 7f 00   .........?%.....
+|   2896: 00 43 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e   .COMPILER=gcc-5.
+|   2912: 34 23 00 20 32 30 31 36 30 36 30 39 20 44 45 42   4#. 20160609 DEB
+|   2928: 55 47 20 45 4e 41 42 4c 45 20 44 42 53 54 41 54   UG ENABLE DBSTAT
+|   2944: 20 56 54 41 42 20 45 4e 41 42 4c 45 20 46 54 53    VTAB ENABLE FTS
+|   2960: 34 20 45 4e 41 42 4c 45 20 46 54 53 35 20 45 4e   4 ENABLE FTS5 EN
+|   2976: 41 42 4c 45 20 47 45 4f 50 4f 4c 59 20 45 4e 41   ABLE GEOPOLY ENA
+|   2992: 42 4c 45 20 4a 53 4f 4e 31 20 45 4e 41 42 4c 45   BLE JSON1 ENABLE
+|   3008: 20 4d 45 4d 53 59 53 35 20 45 4e 41 42 4c 45 20    MEMSYS5 ENABLE 
+|   3024: 52 54 52 45 45 20 4d 41 58 20 4d 45 4d 4f 52 59   RTREE MAX MEMORY
+|   3040: 3d 35 30 30 30 30 30 30 30 20 4f 4d 49 54 20 4c   =50000000 OMIT L
+|   3056: 4f 41 44 20 45 58 54 45 4e 53 49 4f 4e 20 54 48   OAD EXTENSION TH
+|   3072: 52 45 41 44 53 41 46 45 3d 30 18 24 05 00 25 0f   READSAFE=0.$..%.
+|   3088: 19 54 48 52 45 41 44 53 41 46 45 3d 30 58 42 49   .THREADSAFE=0XBI
+|   3104: 4e 41 52 59 18 23 05 00 25 0f 19 54 48 52 45 41   NARY.#..%..THREA
+|   3120: 44 53 41 46 45 3d 30 58 4e 4f 43 41 53 45 17 22   DSAFE=0XNOCASE..
+|   3136: 05 00 25 0f 17 54 48 52 45 41 44 53 41 46 45 3d   ..%..THREADSAFE=
+|   3152: 30 58 52 54 52 49 4d 1f 21 05 00 33 0f 19 4f 4d   0XRTRIM.!..3..OM
+|   3168: 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49 4f   IT LOAD EXTENSIO
+|   3184: 4e 58 42 49 4e 41 52 59 1f 20 05 00 33 0f 19 4f   NXBINARY. ..3..O
+|   3200: 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49   MIT LOAD EXTENSI
+|   3216: 4f 4e 58 4e 4f 43 41 53 45 1e 1f 05 00 33 0f 17   ONXNOCASE....3..
+|   3232: 4f 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53   OMIT LOAD EXTENS
+|   3248: 49 4f 4e 58 52 54 52 49 4d 1f 1e 05 00 33 0f 19   IONXRTRIM....3..
+|   3264: 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30 30   MAX MEMORY=50000
+|   3280: 30 30 30 58 42 49 4e 41 52 59 1f 1d 05 00 33 0f   000XBINARY....3.
+|   3296: 19 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30   .MAX MEMORY=5000
+|   3312: 30 30 30 30 58 4e 4f 43 41 53 45 1e 1c 05 00 33   0000XNOCASE....3
+|   3328: 0f 17 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30   ..MAX MEMORY=500
+|   3344: 30 30 30 30 30 58 52 54 53 49 4d 18 1b 05 00 25   00000XRTSIM....%
+|   3360: 0f 19 45 4e 41 42 4c 45 20 52 54 52 45 45 58 42   ..ENABLE RTREEXB
+|   3376: 49 4e 41 52 59 18 1a 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3392: 4c 45 20 52 54 52 45 45 58 4e 4f 43 41 53 45 17   LE RTREEXNOCASE.
+|   3408: 19 05 00 25 0f 17 45 4e 41 42 4c 45 20 52 54 52   ...%..ENABLE RTR
+|   3424: 45 45 58 52 54 52 49 4d 1a 18 05 00 29 0f 19 45   EEXRTRIM....)..E
+|   3440: 4e 41 42 4c 45 20 4d 45 4d 53 59 53 35 58 42 49   NABLE MEMSYS5XBI
+|   3456: 4e 41 52 59 1a 17 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3472: 45 20 4d 45 4d 53 59 53 35 58 4e 4f 43 41 53 45   E MEMSYS5XNOCASE
+|   3488: 19 16 05 00 29 0f 17 45 4e 41 42 4c 45 20 4d 45   ....)..ENABLE ME
+|   3504: 4d 53 59 53 35 58 52 54 52 49 4d 18 15 05 00 25   MSYS5XRTRIM....%
+|   3520: 0f 19 45 4e 41 42 4c 45 20 4a 53 4f 4e 31 58 42   ..ENABLE JSON1XB
+|   3536: 49 4e 41 52 59 18 14 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3552: 4c 45 20 4a 53 4f 4e 31 58 4e 4f 43 41 53 45 17   LE JSON1XNOCASE.
+|   3568: 13 05 00 25 0f 17 45 4e 41 52 4c 45 20 4a 53 4f   ...%..ENARLE JSO
+|   3584: 4e 31 58 52 54 52 49 4d 1a 12 05 00 29 0f 19 45   N1XRTRIM....)..E
+|   3600: 4e 41 42 4c 45 20 47 45 4f 50 4f 4c 59 58 42 49   NABLE GEOPOLYXBI
+|   3616: 4e 41 52 59 1a 11 05 00 29 0f 19 45 4e 41 1e 4c   NARY....)..ENA.L
+|   3632: 45 20 47 45 4f 50 4f 4c 59 58 4e 4f 43 41 53 45   E GEOPOLYXNOCASE
+|   3648: 19 10 05 00 29 0f 17 45 4e 41 42 4c 45 20 47 55   ....)..ENABLE GU
+|   3664: 4f 50 4f 4c 59 58 52 54 52 49 4d 17 0f 05 00 23   OPOLYXRTRIM....#
+|   3680: 0f 19 45 4e 41 42 4c 45 20 46 54 53 35 58 42 49   ..ENABLE FTS5XBI
+|   3696: 4e 41 52 59 17 0e 05 00 23 0f 19 45 4e 41 42 4c   NARY....#..ENABL
+|   3712: 45 20 46 54 53 35 58 4e 4f 43 41 53 45 16 0d 05   E FTS5XNOCASE...
+|   3728: 00 23 0f 17 45 4e 41 42 4c 45 20 46 54 59 e5 58   .#..ENABLE FTY.X
+|   3744: 52 54 52 49 4d 17 0c 05 00 23 0f 19 45 4e 41 42   RTRIM....#..ENAB
+|   3760: 4c 45 20 46 54 53 34 58 42 49 4e 41 52 59 17 0b   LE FTS4XBINARY..
+|   3776: 05 00 23 0f 19 45 4e 41 42 4c 45 20 46 54 53 35   ..#..ENABLE FTS5
+|   3792: 58 4e 4f 43 40 53 45 16 0a 05 00 23 0f 17 45 4e   XNOC@SE....#..EN
+|   3808: 41 42 4c 45 20 46 54 53 34 58 52 54 52 49 4d 1e   ABLE FTS4XRTRIM.
+|   3824: 09 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3840: 54 41 54 20 56 54 41 42 58 42 49 4e 41 52 59 1e   TAT VTABXBINARY.
+|   3856: 08 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3872: 54 41 54 20 56 54 41 42 58 4e 4f 43 41 53 45 1d   TAT VTABXNOCASE.
+|   3888: 07 05 00 31 0f 17 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3904: 54 41 54 20 56 54 41 42 58 52 54 52 49 4d 11 06   TAT VTABXRTRIM..
+|   3920: 05 00 17 0f 19 44 45 42 55 47 58 42 49 4e 41 52   .....DEBUGXBINAR
+|   3936: 59 11 05 05 00 17 0f 19 44 45 42 55 47 58 4e 4f   Y.......DEBUGXNO
+|   3952: 43 41 53 45 10 04 05 00 17 0f 17 44 45 42 55 47   CASE.......DEBUG
+|   3968: 58 52 54 52 49 4d 27 03 05 00 43 0f 19 43 4f 4d   XRTRIM'...C..COM
+|   3984: 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e 30 20   PILER=gcc-5.4.0 
+|   4000: 32 30 31 36 30 36 30 39 58 42 49 4e 41 52 59 27   20160609XBINARY'
+|   4016: 02 05 00 43 0f 19 43 4f 4d 50 49 4c 45 52 3d 67   ...C..COMPILER=g
+|   4032: 63 63 25 75 2e 34 2f 30 20 32 30 31 36 30 36 30   cc%u.4/0 2016060
+|   4048: 39 58 4e 4f 43 41 53 45 26 01 05 00 43 0f 17 43   9XNOCASE&...C..C
+|   4064: 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e   OMPILER=gcc-5.4.
+|   4080: 30 20 32 30 31 36 30 36 30 39 58 52 54 52 49 4d   0 20160609XRTRIM
+| page 4 offset 12288
+|      0: 0d 00 00 00 00 10 00 00 00 00 00 00 00 00 00 00   ................
+| page 5 offset 16384
+|      0: 0d 00 00 00 02 0b a0 00 0c ad 0b a0 00 00 00 00   ................
+|   2976: 82 0a 02 08 08 09 08 08 17 84 06 30 20 32 35 33   ...........0 253
+|   2992: 00 01 30 04 25 06 1b 00 00 08 32 30 31 36 30 36   ..0.%.....201606
+|   3008: 30 39 03 25 07 00 00 01 34 03 25 05 00 00 01 35   09.%....4.%....5
+|   3024: 03 25 04 00 01 07 30 30 30 30 30 30 30 03 25 1a   .%....0000000.%.
+|   3040: 00 00 08 63 6f 6d 70 69 6c 65 72 03 25 02 00 00   ...compiler.%...
+|   3056: 06 64 62 73 74 61 74 03 25 0a 00 01 04 65 62 75   .dbstat.%....ebu
+|   3072: 67 03 25 08 00 00 06 65 6e 61 62 6c 65 09 25 09   g.%....enable.%.
+|   3088: 05 04 04 04 04 04 00 01 08 78 74 65 6e 73 69 6f   .........xtensio
+|   3104: 6e 03 25 1d 00 00 04 66 74 73 34 03 25 0d 00 03   n.%....fts4.%...
+|   3120: 01 35 03 25 0f 00 00 03 67 63 63 03 25 03 00 01   .5.%....gcc.%...
+|   3136: 06 65 6f 70 6f 6c 79 03 25 11 00 00 05 6a 73 6f   .eopoly.%....jso
+|   3152: 6e 31 03 25 13 41 00 04 6c 6f 61 64 03 25 1c 00   n1.%.A..load.%..
+|   3168: 00 03 6d 61 78 03 25 18 00 01 05 65 6d 6f 72 79   ..max.%....emory
+|   3184: 03 25 19 00 03 04 73 79 73 35 03 25 15 00 00 04   .%....sys5.%....
+|   3200: 6f 6d 69 74 03 25 1b 00 00 05 72 74 72 65 65 03   omit.%....rtree.
+|   3216: 25 17 00 00 0a 74 68 72 65 61 64 73 61 56 65 03   %....threadsaVe.
+|   3232: 25 1e 00 00 04 76 74 61 62 03 25 0b 00 86 50 01   %....vtab.%...P.
+|   3248: 08 08 08 08 08 17 8d 12 30 20 38 33 35 00 01 30   ........0 835..0
+|   3264: 12 01 06 00 01 06 00 01 06 00 1f 03 00 01 03 00   ................
+|   3280: 01 03 00 00 08 32 30 31 36 30 36 30 39 09 01 07   .....20160609...
+|   3296: 00 01 07 00 01 07 00 00 01 34 09 01 05 00 01 05   .........4......
+|   3312: 00 01 05 00 00 01 35 09 01 04 00 01 04 00 01 04   ......5.........
+|   3328: 00 01 07 30 30 30 30 30 30 30 09 1c 04 00 01 04   ...0000000......
+|   3344: 00 01 04 00 00 06 62 69 6e 61 72 79 3c 03 02 02   ......binary<...
+|   3360: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3376: 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00   ................
+|   3392: 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03   ................
+|   3408: 01 02 02 00 03 01 02 02 00 00 08 63 6f 6d 70 69   ...........compi
+|   3424: 6c 65 72 09 01 02 00 01 02 00 01 02 00 00 06 64   ler............d
+|   3440: 62 73 74 61 74 09 f2 03 00 01 03 00 01 03 00 01   bstat...........
+|   3456: 04 65 62 75 67 09 04 02 00 01 02 00 01 02 00 00   .ebug...........
+|   3472: 06 65 6e 61 62 6c 65 3f 07 02 00 01 02 00 01 02   .enable?........
+|   3488: 00 01 02 00 01 02 00 01 02 00 01 02 00 57 02 00   .............W..
+|   3504: 01 02 00 01 01 00 01 02 00 11 02 00 01 02 10 01   ................
+|   3520: 02 00 01 02 00 01 02 00 01 02 00 01 02 00 01 02   ................
+|   3536: 00 01 02 00 01 02 00 01 08 78 74 64 6e 73 69 6f   .........xtdnsio
+|   3552: 6e 09 1f 04 00 01 04 00 01 03 00 00 04 66 74 73   n............fts
+|   3568: 34 09 0a 03 00 01 03 00 01 03 00 03 01 35 09 0d   4............5..
+|   3584: 03 00 01 03 00 01 03 00 00 03 57 63 63 09 01 03   ..........Wcc...
+|   3600: 00 01 03 00 01 03 00 01 06 65 6f 70 6f 6c 79 09   .........eopoly.
+|   3616: 10 03 00 01 03 00 01 03 00 00 05 6a 73 6f 6e 31   ...........json1
+|   3632: 09 13 03 00 01 03 00 01 03 00 00 04 6c 6f 61 64   ............load
+|   3648: 09 1f 03 00 01 03 00 01 03 00 00 03 6d 61 78 09   ............max.
+|   3664: 1c 02 00 01 02 00 01 02 00 01 05 65 6d 6f 72 79   ...........emory
+|   3680: 09 1c 03 00 01 03 00 01 03 00 03 04 73 79 73 35   ............sys5
+|   3696: 09 16 03 00 01 03 00 01 03 00 00 06 6e 6f 63 61   ............noca
+|   3712: 73 65 3c 02 01 02 02 00 03 01 02 02 00 03 01 02   se<.............
+|   3728: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3744: 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00   ................
+|   3760: 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00 00   ................
+|   3776: 04 6f 6d 69 74 09 1f 02 00 01 02 00 01 02 00 00   .omit...........
+|   3792: 05 72 74 72 65 65 09 19 03 00 01 03 00 01 03 00   .rtree..........
+|   3808: 03 02 69 6d 3c 01 01 02 02 00 03 01 02 02 00 03   ..im<...........
+|   3824: 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01   ................
+|   3840: 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02   ................
+|   3856: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3872: 00 00 0a 74 68 72 65 61 64 73 61 66 65 09 22 02   ...threadsafe...
+|   3888: 00 01 02 00 02 02 00 00 04 76 74 61 62 09 07 04   .........vtab...
+|   3904: 00 01 04 00 01 04 00 00 01 78 b4 01 01 01 01 02   .........x......
+|   3920: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+|   3936: 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01   ................
+|   3952: 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01   ................
+|   3968: 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01   ................
+|   3984: 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02   ................
+|   4000: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+|   4016: 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01   ................
+|   4032: 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01   ................
+|   4048: 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01   ................
+|   4064: 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02   ................
+|   4080: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 02 0f f5 00 0f fb 0f f5 00 00 00 00   ................
+|   4080: 00 00 00 00 00 05 04 08 09 01 02 04 04 08 08 09   ................
+| page 7 offset 24576
+|      0: 0d 00 00 00 05 0f b8 00 0f f4 0f e9 0f d6 0f c7   ................
+|     16: 0f b8 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4064: 00 00 00 00 00 0d 05 02 23 61 75 74 6f 6d 65 72   ........#automer
+|   4080: 67 65 3d 35 0d 04 02 23 6d 65 72 67 65 3d 31 30   ge=5...#merge=10
+| page 8 offset 28672
+|      0: 30 2c 38 11 03 02 2b 69 6e 74 65 67 72 69 74 79   0,8...+integrity
+|     16: 2d 63 68 65 63 6b 09 02 02 1b 72 65 62 75 69 6c   -check....rebuil
+|     32: 64 0a 01 02 1d 6f 70 74 69 6d 69 7a 65 00 00 00   d....optimize...
+| end crash-4ce32d0608aff1.db
+}]} {}
+
+do_catchsql_test 18.1 {
+  SELECT quote(matchinfo(t1,'pcxybs'))==0 FROM t1 WHERE b MATCH 'e*';
+} {0 {}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 19.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 28672 pagesize 4096 filename crash-526ea445f41c02.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 07   .....@  ........
+|     32: 00 00 00 02 00 00 00 01 00 00 00 07 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 0e b1 00 06 0d a4 00 0f 8d 0f 21   ...............!
+|    112: 0e b9 0d c8 0e 7e 0d a4 00 00 00 00 00 00 00 00   .....~..........
+|   3488: 00 00 00 00 22 07 06 17 11 11 01 31 74 61 62 6c   ...........1tabl
+|   3504: 65 74 32 74 32 07 43 52 45 41 54 45 20 54 41 42   et2t2.CREATE TAB
+|   3520: 4c 45 20 74 32 28 78 29 81 33 05 07 17 1f 1f 01   LE t2(x).3......
+|   3536: 82 35 74 61 62 6c 65 74 31 5f 73 65 67 64 69 72   .5tablet1_segdir
+|   3552: 74 31 5f 73 65 67 64 69 72 05 43 52 45 41 54 45   t1_segdir.CREATE
+|   3568: 20 54 41 42 4c 45 20 27 74 31 5f 73 65 67 64 69    TABLE 't1_segdi
+|   3584: 72 27 28 6c 65 76 65 6c 20 49 4e 54 45 47 45 52   r'(level INTEGER
+|   3600: 2c 69 64 78 20 49 4e 54 45 47 45 52 2c 73 74 61   ,idx INTEGER,sta
+|   3616: 72 74 5f 62 6c 6f 63 6b 20 49 4e 54 45 47 45 52   rt_block INTEGER
+|   3632: 2c 6c 65 61 76 65 73 5f 65 6e 64 5f 62 6c 6f 63   ,leaves_end_bloc
+|   3648: 6b 20 49 4e 54 45 47 45 52 2c 65 6e 64 5f 62 6c   k INTEGER,end_bl
+|   3664: 6f 63 6b 20 49 4e 54 45 47 45 52 2c 72 6f 6f 74   ock INTEGER,root
+|   3680: 20 42 4c 4f 42 2c 50 52 49 4d 41 52 59 20 4b 45    BLOB,PRIMARY KE
+|   3696: 59 28 6c 65 76 65 6c 2c 20 69 64 78 29 29 31 06   Y(level, idx))1.
+|   3712: 06 17 45 1f 01 00 69 6e 64 65 78 73 71 6c 69 74   ..E...indexsqlit
+|   3728: 65 5f 61 75 74 6f 69 6e 64 65 78 5f 74 31 5f 73   e_autoindex_t1_s
+|   3744: 65 67 64 69 72 5f 31 74 31 5f 73 65 67 64 69 72   egdir_1t1_segdir
+|   3760: 06 0f c7 00 08 00 00 00 00 66 04 07 17 23 23 01   .........f...##.
+|   3776: 81 13 74 61 62 6c 65 74 31 5f 73 65 67 6d 65 6e   ..tablet1_segmen
+|   3792: 74 73 74 31 5f 73 65 67 6d 65 6e 74 73 04 43 52   tst1_segments.CR
+|   3808: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 73   EATE TABLE 't1_s
+|   3824: 65 67 6d 65 6e 74 73 27 28 62 6c 6f 63 6b 69 64   egments'(blockid
+|   3840: 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59    INTEGER PRIMARY
+|   3856: 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42    KEY, block BLOB
+|   3872: 29 6a 03 07 17 21 21 01 81 1f 74 61 62 6c 65 74   )j...!!...tablet
+|   3888: 31 5f 63 6f 6e 74 65 6e 74 74 31 5f 63 6f 6e 74   1_contentt1_cont
+|   3904: 65 6e 74 03 43 52 45 41 54 45 20 54 41 42 4c 45   ent.CREATE TABLE
+|   3920: 20 27 74 31 5f 63 6f 6e 74 65 6e 74 27 28 64 6f    't1_content'(do
+|   3936: 63 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   cid INTEGER PRIM
+|   3952: 41 52 59 20 4b 45 59 2c 20 27 63 30 61 27 2c 20   ARY KEY, 'c0a', 
+|   3968: 27 63 31 62 27 2c 20 27 63 32 63 27 29 38 02 06   'c1b', 'c2c')8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 41 43 52   ...._tablet1tACR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 33   LE t1 USING fts3
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 39 00 00 00 00 00   (a,b,c)...9.....
+| page 3 offset 8192
+|      0: 0d 00 00 00 25 0b 48 00 0f d8 0f af 0f 86 0f 74   ....%.H........t
+|     16: 0f 61 0f 4e 0f 2f 0f 0f 0e ef 0e d7 0e be 0e a5   .a.N./..........
+|     32: 0e 8d 0e 74 0e 5b 0e 40 0e 24 0e 08 0d ef 0d d5   ...t.[.@.$......
+|     48: 0d bb 0d a0 0d 84 0d 68 0d 4f 0d 35 0d 1b 0c fb   .......h.O.5....
+|     64: 0c da 0c b9 0c 99 0c 78 0c 57 0c 3e 0c 24 0c 0a   .......x.W.>.$..
+|     80: 0b 48 00 00 00 00 00 00 00 00 00 00 00 00 00 00   .H..............
+|   2880: 00 00 00 00 00 00 00 00 81 3f 25 06 00 82 7f 00   .........?%.....
+|   2896: 00 43 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2f   .COMPILER=gcc-5/
+|   2912: 34 2e 30 20 32 30 31 36 30 36 30 39 20 44 45 42   4.0 20160609 DEB
+|   2928: 55 47 20 45 4e 41 42 4c 45 20 44 42 53 54 41 54   UG ENABLE DBSTAT
+|   2944: 20 56 54 41 42 20 45 4e 41 42 4c 45 20 46 54 53    VTAB ENABLE FTS
+|   2960: 34 20 45 4e 41 42 4c 45 20 46 54 53 35 20 45 4e   4 ENABLE FTS5 EN
+|   2976: 41 42 4c 45 20 47 45 4f 50 4f 4c 59 20 45 4e 41   ABLE GEOPOLY ENA
+|   2992: 42 4c 45 20 4a 53 4f 4e 31 20 45 4e 41 42 4c 45   BLE JSON1 ENABLE
+|   3008: 20 4d 45 4d 53 59 53 35 20 45 4e 41 42 4c 45 20    MEMSYS5 ENABLE 
+|   3024: 52 54 52 45 45 20 4d 41 58 20 4d 45 4d 4f 52 59   RTREE MAX MEMORY
+|   3040: 3d 35 30 30 30 30 30 30 30 20 4f 4d 49 54 20 4c   =50000000 OMIT L
+|   3056: 4f 41 44 20 45 58 54 45 4e 53 49 4f 4e 20 54 48   OAD EXTENSION TH
+|   3072: 52 45 41 44 53 41 46 45 3d 30 18 24 05 00 25 0f   READSAFE=0.$..%.
+|   3088: 19 54 48 52 45 41 44 53 41 46 45 3d 30 58 42 49   .THREADSAFE=0XBI
+|   3104: 4e 41 52 59 18 23 05 00 25 0f 19 54 48 52 45 41   NARY.#..%..THREA
+|   3120: 44 53 41 46 45 3d 30 58 4e 4f 43 41 53 45 17 22   DSAFE=0XNOCASE..
+|   3136: 05 00 25 0f 17 54 48 52 45 41 44 53 41 46 45 3d   ..%..THREADSAFE=
+|   3152: 30 58 52 54 52 49 4d 1f 21 05 00 33 0f 19 4f 4d   0XRTRIM.!..3..OM
+|   3168: 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49 4f   IT LOAD EXTENSIO
+|   3184: 4e 58 42 49 4e 41 52 59 1f 20 05 00 33 0f 19 4f   NXBINARY. ..3..O
+|   3200: 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49   MIT LOAD EXTENSI
+|   3216: 4f 4e 58 4e 4f 43 41 53 45 1e 1f 05 00 33 0f 17   ONXNOCASE....3..
+|   3232: 4f 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53   OMIT LOAD EXTENS
+|   3248: 49 4f 4e 58 52 54 52 49 4d 1f 1e 05 00 33 0f 19   IONXRTRIM....3..
+|   3264: 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30 30   MAX MEMORY=50000
+|   3280: 30 30 30 58 42 49 4e 41 52 59 1f 1d 05 00 33 0f   000XBINARY....3.
+|   3296: 19 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30   .MAX MEMORY=5000
+|   3312: 30 30 30 30 58 4e 4f 43 41 53 45 1e 1c 05 00 33   0000XNOCASE....3
+|   3328: 0f 17 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30   ..MAX MEMORY=500
+|   3344: 30 30 30 30 30 58 52 54 52 49 4d 18 1b 05 00 25   00000XRTRIM....%
+|   3360: 0f 19 45 4e 41 42 4c 45 20 52 54 52 45 45 58 42   ..ENABLE RTREEXB
+|   3376: 49 4e 41 52 59 18 1a 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3392: 4c 45 20 52 54 52 45 45 58 4e 4f 43 41 53 45 17   LE RTREEXNOCASE.
+|   3408: 19 05 00 25 0f 17 45 4e 41 42 4c 45 20 52 54 52   ...%..ENABLE RTR
+|   3424: 45 45 58 52 54 52 49 4d 1a 18 05 00 29 0f 19 45   EEXRTRIM....)..E
+|   3440: 4e 41 42 4c 45 20 4d 45 4d 53 59 53 35 58 42 49   NABLE MEMSYS5XBI
+|   3456: 4e 41 52 59 1a 17 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3472: 45 20 4d 45 4d 53 59 53 35 58 4e 4f 43 41 53 45   E MEMSYS5XNOCASE
+|   3488: 19 16 05 00 29 0f 17 45 4e 41 42 4c 45 20 4d 45   ....)..ENABLE ME
+|   3504: 4d 53 59 53 35 58 52 54 52 49 4d 18 15 05 00 25   MSYS5XRTRIM....%
+|   3520: 0f 19 45 4e 41 42 4c 45 20 4a 53 4f 4e 31 58 42   ..ENABLE JSON1XB
+|   3536: 49 4e 41 52 59 18 14 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3552: 4c 45 20 4a 53 4f 4e 31 58 4e 4f 43 41 53 45 17   LE JSON1XNOCASE.
+|   3568: 13 05 00 25 0f 17 45 4e 41 42 4c 45 20 4a 53 4f   ...%..ENABLE JSO
+|   3584: 4e 31 58 52 54 52 49 4d 1a 12 05 00 29 0f 19 45   N1XRTRIM....)..E
+|   3600: 4e 41 42 4c 45 20 47 45 4f 50 4f 4c 59 58 42 49   NABLE GEOPOLYXBI
+|   3616: 4e 41 52 59 1a 11 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3632: 45 20 47 45 4f 50 4f 4c 59 58 4e 4f 43 41 53 45   E GEOPOLYXNOCASE
+|   3648: 19 10 05 00 29 0f 17 45 4e 41 42 4c 45 20 47 45   ....)..ENABLE GE
+|   3664: 4f 50 4f 4c 59 58 52 54 52 49 4d 17 0f 05 00 23   OPOLYXRTRIM....#
+|   3680: 0f 19 45 4e 41 42 4c 45 20 46 54 53 35 58 42 49   ..ENABLE FTS5XBI
+|   3696: 4f 41 52 59 17 0e 05 00 23 0f 19 45 4e 41 42 4c   OARY....#..ENABL
+|   3712: 45 20 46 54 53 35 58 4e 4f 43 41 53 45 16 0d 05   E FTS5XNOCASE...
+|   3728: 00 23 0f 17 45 4e 41 42 4c 45 20 46 54 53 35 58   .#..ENABLE FTS5X
+|   3744: 52 54 52 49 4d 17 0c 05 00 23 0f 19 45 4e 41 42   RTRIM....#..ENAB
+|   3760: 4c 45 20 46 54 53 34 58 42 49 4e 41 52 59 17 0b   LE FTS4XBINARY..
+|   3776: 05 00 23 0f 19 45 4e 41 42 4d f5 20 46 54 53 34   ..#..ENABM. FTS4
+|   3792: 58 4e 4f 43 41 53 45 16 0a 05 00 23 0f 17 45 4e   XNOCASE....#..EN
+|   3808: 41 52 4c 45 20 46 54 53 34 58 52 54 52 49 4d 1e   ARLE FTS4XRTRIM.
+|   3824: 09 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3840: 54 41 54 20 56 54 41 42 58 42 49 4e 41 52 59 1e   TAT VTABXBINARY.
+|   3856: 08 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3872: 54 41 54 20 56 54 41 42 58 4e 4f 43 41 53 45 1d   TAT VTABXNOCASE.
+|   3888: 07 05 00 31 0f 17 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3904: 54 41 54 20 56 54 41 42 58 52 54 52 49 4d 11 06   TAT VTABXRTRIM..
+|   3920: 05 00 17 0f 19 44 45 42 55 47 58 42 49 4e 41 52   .....DEBUGXBINAR
+|   3936: 59 11 05 05 00 17 0f 19 44 45 42 55 47 58 4e 4f   Y.......DEBUGXNO
+|   3952: 43 41 53 45 10 04 05 00 17 0f 17 44 45 42 55 47   CASE.......DEBUG
+|   3968: 58 52 54 52 49 4d 27 03 05 00 43 0f 19 43 4f 4d   XRTRIM'...C..COM
+|   3984: 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e 30 20   PILER=gcc-5.4.0 
+|   4000: 32 30 31 36 30 36 30 39 58 42 49 4e 41 52 59 27   20160609XBINARY'
+|   4016: 02 04 00 43 0f 19 43 4f 4d 50 49 4c 45 52 3d 67   ...C..COMPILER=g
+|   4032: 63 63 2d 35 2e 34 2e 30 20 32 30 31 36 30 36 30   cc-5.4.0 2016060
+|   4048: 39 58 4e 4f 43 41 53 45 26 01 05 00 43 0f 17 43   9XNOCASE&...C..C
+|   4064: 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e   OMPILER=gcc-5.4.
+|   4080: 30 20 32 30 31 36 30 36 30 39 58 52 54 52 49 4d   0 20160609XRTRIM
+| page 4 offset 12288
+|      0: 0d 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+| page 5 offset 16384
+|      0: 0d 00 00 00 02 0b a0 00 0c ad 0b a0 00 00 00 00   ................
+|   2976: 82 0a 02 08 08 09 08 08 17 84 06 30 20 32 35 33   ...........0 253
+|   2992: 00 01 30 04 25 06 1b 00 00 08 32 30 31 36 30 36   ..0.%.....201606
+|   3008: 30 39 03 25 07 00 00 01 34 03 25 05 00 00 01 35   09.%....4.%....5
+|   3024: 03 25 04 00 01 07 30 30 30 30 30 30 30 03 25 1a   .%....0000000.%.
+|   3040: 00 00 08 63 6f 6d 70 69 6c 65 72 03 25 02 00 00   ...compiler.%...
+|   3056: 06 64 62 73 74 61 74 03 25 0a 00 01 04 65 62 75   .dbstat.%....ebu
+|   3072: 67 03 25 08 00 00 06 65 6e 61 62 6c 65 09 25 09   g.%....enable.%.
+|   3088: 05 04 04 04 04 04 00 01 08 78 74 65 6e 73 69 6f   .........xtensio
+|   3104: 6e 03 25 1d 00 00 04 66 74 73 34 03 25 0d 00 03   n.%....fts4.%...
+|   3120: 01 35 03 25 0f 00 00 03 67 63 63 03 25 03 00 01   .5.%....gcc.%...
+|   3136: 06 65 6f 70 6f 6c 79 03 25 11 00 00 05 6a 73 6f   .eopoly.%....jso
+|   3152: 6e 31 03 25 13 00 00 04 6c 6f 61 64 03 25 1c 00   n1.%....load.%..
+|   3168: 00 03 6d 61 78 03 25 18 00 01 05 65 6d 6f 72 79   ..max.%....emory
+|   3184: 03 25 19 00 03 04 73 79 73 35 03 25 15 00 00 04   .%....sys5.%....
+|   3200: 6f 6d 69 74 03 25 1b 00 00 05 72 74 72 65 65 03   omit.%....rtree.
+|   3216: 25 17 00 00 0a 74 68 72 65 61 64 73 61 66 65 03   %....threadsafe.
+|   3232: 25 1e 00 00 04 76 74 61 62 03 25 0b 00 86 50 01   %....vtab.%...P.
+|   3248: 08 08 08 08 08 17 8d 12 30 20 38 33 35 00 01 30   ........0 835..0
+|   3264: 12 01 06 00 01 06 00 01 06 00 1f 03 00 01 03 00   ................
+|   3280: 01 03 00 00 08 32 30 31 36 30 36 30 39 09 01 07   .....20160609...
+|   3296: 00 01 07 00 01 07 00 00 01 34 09 01 05 00 01 05   .........4......
+|   3312: 00 01 05 00 00 01 35 09 01 04 00 01 04 00 01 04   ......5.........
+|   3328: 00 01 07 30 30 30 30 30 30 30 09 1c 04 00 01 04   ...0000000......
+|   3344: 00 01 04 00 00 06 62 69 6e 61 72 79 3c 03 01 02   ......binary<...
+|   3360: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3376: 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00   ................
+|   3392: 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03   ................
+|   3408: 01 02 02 00 03 01 02 02 00 00 08 63 6f 6d 70 69   ...........compi
+|   3424: 6c 65 72 09 01 02 00 01 02 00 01 02 00 00 06 64   ler............d
+|   3440: 62 73 74 61 74 09 07 03 00 01 03 00 01 03 00 01   bstat...........
+|   3456: 04 65 62 75 67 09 04 02 00 01 02 00 01 02 00 00   .ebug...........
+|   3472: 06 65 6e 61 62 6c 65 3f 07 02 00 01 02 00 01 02   .enable?........
+|   3488: 00 01 02 00 01 02 00 01 02 00 01 02 00 01 02 00   ................
+|   3504: 01 02 00 01 02 00 01 02 00 01 02 00 01 02 00 01   ................
+|   3520: 02 00 01 02 00 01 02 00 01 02 00 01 02 00 01 02   ................
+|   3536: 00 01 02 00 01 02 00 01 08 78 74 65 6e 73 69 6f   .........xtensio
+|   3552: 6e 09 1f 04 00 01 04 00 01 04 00 00 04 66 74 73   n............fts
+|   3568: 34 09 0a 03 00 01 03 00 01 03 00 03 01 35 09 0d   4............5..
+|   3584: 03 00 01 03 00 01 03 00 00 03 67 63 63 09 01 03   ..........gcc...
+|   3600: 00 01 03 00 01 03 00 01 06 65 6f 70 6f 6c 79 09   .........eopoly.
+|   3616: 10 03 00 01 03 00 01 03 00 00 05 6a 73 6f 6e 31   ...........json1
+|   3632: 09 13 03 00 01 03 00 01 03 00 00 04 6c 6f 61 64   ............load
+|   3648: 09 1f 03 00 01 03 00 01 03 00 00 03 6d 61 78 09   ............max.
+|   3664: 1c 02 00 01 02 00 01 02 00 01 05 65 6d 6f 72 79   ...........emory
+|   3680: 09 1c 03 00 01 03 00 01 03 00 03 04 73 79 73 35   ............sys5
+|   3696: 09 16 03 00 01 03 00 01 03 00 00 06 6e 6f 63 61   ............noca
+|   3712: 73 65 3c 02 01 02 02 00 03 01 02 02 00 03 01 02   se<.............
+|   3728: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3744: 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00   ................
+|   3760: 03 01 02 02 00 13 01 02 02 00 03 01 02 02 00 00   ................
+|   3776: 04 6f 6d 69 74 09 1f 02 00 01 12 00 01 02 00 00   .omit...........
+|   3792: 05 72 74 72 65 65 09 19 03 00 01 81 00 01 03 00   .rtree..........
+|   3808: 03 02 69 6d 3c 01 01 02 02 00 03 01 02 02 00 03   ..im<...........
+|   3824: 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01   ................
+|   3840: 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02   ................
+|   3856: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3872: 00 00 0a 74 68 72 65 61 64 73 61 66 65 09 22 02   ...threadsafe...
+|   3888: 00 01 02 00 01 02 00 00 04 76 74 61 62 09 07 04   .........vtab...
+|   3904: 00 01 04 00 01 04 00 00 01 78 b4 01 01 01 01 02   .........x......
+|   3920: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+|   3936: 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01   ................
+|   3952: 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01   ................
+|   3968: 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01   ................
+|   3984: 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02   ................
+|   4000: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+|   4016: 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01   ................
+|   4032: 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01   ................
+|   4048: 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01   ................
+|   4064: 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02   ................
+|   4080: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 02 0f f5 00 0f fb 0f f5 00 00 00 00   ................
+|   4080: 00 00 00 00 00 05 04 08 09 01 02 04 04 08 08 09   ................
+| page 7 offset 24576
+|      0: 0d 00 00 00 05 0f b8 00 0f f4 0f e9 0f d6 0f c7   ................
+|     16: 0f b8 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 0d 05 02 23 61 75 74 6f   ...........#auto
+|   4032: 6d 65 72 67 65 3d 35 0d 04 02 23 6d 65 72 67 65   merge=5...#merge
+|   4048: 3d 31 30 30 2c 38 11 03 02 2b 69 6e 74 65 67 72   =100,8...+integr
+|   4064: 69 74 79 2d 63 68 65 63 6b 09 02 02 1b 72 65 62   ity-check....reb
+|   4080: 75 69 6c 64 0a 01 02 1d 6f 70 74 69 6d 69 7a 65   uild....optimize
+| end crash-526ea445f41c02.db
+}]} {}
+
+do_catchsql_test 19.1 {
+  PRAGMA writable_schema = 1;
+  SELECT rowid,a,c,snippet(t1,85101090932165,-1,10) FROM t1 WHERE a MATCH 'rtree';
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 20.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 28672 pagesize 4096 filename crash-afecd03c862e58.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 07   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 06 00 00 00 04   ................
+|     96: 00 00 00 00 0d 0e ef 00 07 0d 4d 00 0f bd 0f 5f   ..........M...._
+|    112: 0e f7 0e 06 0e bc 0d a4 0d 4d 00 00 01 00 00 00   .........M......
+|   3392: 00 00 00 00 00 00 00 00 00 00 00 00 00 55 07 07   .............U..
+|   3408: 17 1b 1b 01 81 01 74 61 62 6c 65 74 31 5f 73 74   ......tablet1_st
+|   3424: 61 74 74 31 5f 73 74 61 74 07 43 52 45 41 54 45   att1_stat.CREATE
+|   3440: 20 54 41 42 4c 45 20 27 74 31 5f 73 74 61 74 27    TABLE 't1_stat'
+|   3456: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   (id INTEGER PRIM
+|   3472: 41 52 59 20 4b 45 59 2c 20 76 61 6c 75 65 20 42   ARY KEY, value B
+|   3488: 4c 4f 42 29 60 06 07 17 21 21 01 81 0b 74 61 62   LOB)`...!!...tab
+|   3504: 6c 65 74 31 5f 64 6f 63 73 69 7a 65 74 31 5f 64   let1_docsizet1_d
+|   3520: 6f 63 73 69 7a 65 06 43 52 45 41 54 45 20 54 41   ocsize.CREATE TA
+|   3536: 42 4c 45 20 27 74 31 5f 64 6f 63 73 69 7a 65 27   BLE 't1_docsize'
+|   3552: 28 64 6f 63 69 64 20 49 4e 54 45 47 45 52 20 50   (docid INTEGER P
+|   3568: 52 49 4d 41 52 59 30 4b 45 59 2c 20 73 69 7a 65   RIMARY0KEY, size
+|   3584: 20 42 4c 4f 42 29 81 33 04 07 17 1f 1f 01 82 35    BLOB).3.......5
+|   3600: 74 61 62 6c 65 74 31 5f 73 65 67 64 69 72 74 31   tablet1_segdirt1
+|   3616: 5f 73 65 67 64 69 25 04 43 52 45 41 54 45 20 54   _segdi%.CREATE T
+|   3632: 41 42 4c 45 20 27 74 31 5f 73 65 67 64 69 72 27   ABLE 't1_segdir'
+|   3648: 28 6c 65 76 65 6c 20 49 4e 54 45 47 45 52 2c 69   (level INTEGER,i
+|   3664: 64 78 20 49 4e 54 45 47 45 52 2c 73 74 61 72 74   dx INTEGER,start
+|   3680: 5f 62 6c 6f 63 6b 20 49 4e 54 45 47 45 52 2c 6c   _block INTEGER,l
+|   3696: 65 61 76 65 73 5f 65 6e 64 5f 62 6c 6f 63 6b 20   eaves_end_block 
+|   3712: 49 4d 54 45 47 45 52 2c 65 6e 64 5f 62 6c 6f 63   IMTEGER,end_bloc
+|   3728: 6b 20 49 4e 54 45 47 45 52 2c 72 6f 6f 74 20 42   k INTEGER,root B
+|   3744: 4c 4f 42 2c 50 52 49 4d 41 52 59 20 4b 45 59 28   LOB,PRIMARY KEY(
+|   3760: 6c 65 76 65 6c 2c 20 69 64 78 29 29 31 05 06 17   level, idx))1...
+|   3776: 45 1f 01 00 69 6e 64 65 78 73 71 6c 69 74 65 5f   E...indexsqlite_
+|   3792: 61 75 74 6f 69 6e 64 65 78 5f 74 31 5f 73 65 67   autoindex_t1_seg
+|   3808: 64 69 72 5f 31 74 31 5f 73 65 67 64 69 72 05 00   dir_1t1_segdir..
+|   3824: 00 00 08 00 00 00 00 66 03 07 17 23 23 01 81 13   .......f...##...
+|   3840: 74 61 62 6c 65 74 31 5f 73 65 67 6d 65 6e 74 73   tablet1_segments
+|   3856: 74 31 5f 73 65 67 6d 65 6e 74 73 03 43 52 45 41   t1_segments.CREA
+|   3872: 54 45 20 54 41 42 4c 45 20 27 74 31 5f 73 65 67   TE TABLE 't1_seg
+|   3888: 6d 65 6e 74 73 27 28 62 6c 6f 63 6b 69 64 20 49   ments'(blockid I
+|   3904: 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b   NTEGER PRIMARY K
+|   3920: 45 59 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42 29 5c   EY, block BLOB).
+|   3936: 02 07 17 21 21 01 81 03 74 61 62 6c 65 74 31 5f   ...!!...tablet1_
+|   3952: 63 6f 6e 74 65 6e 74 74 31 5f 63 6f 6e 74 65 6e   contentt1_conten
+|   3968: 74 02 43 52 45 41 54 45 20 54 41 42 4c 45 20 27   t.CREATE TABLE '
+|   3984: 74 31 5f 63 6f 6e 74 65 6e 74 27 28 64 6f 63 69   t1_content'(doci
+|   4000: 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52   d INTEGER PRIMAR
+|   4016: 59 20 4b 45 59 2c 20 27 63 30 61 27 29 41 01 06   Y KEY, 'c0a')A..
+|   4032: 17 11 11 08 71 74 61 62 6c 65 74 31 74 31 43 52   ....qtablet1t1CR
+|   4048: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4064: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 34   LE t1 USING fts4
+|   4080: 28 61 2c 70 72 65 66 69 78 3d 27 31 2c 32 27 29   (a,prefix='1,2')
+| page 2 offset 4096
+|      0: 0d 00 00 00 08 0e 1f 00 0f c4 0f 7c 0f 34 0f 07   ...........|.4..
+|     16: 0e c3 0e 97 0e 63 0e 1f 00 00 00 00 00 00 00 00   .....c..........
+|   3600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 42   ...............B
+|   3616: 08 04 00 81 09 73 75 6e 74 20 69 6e 20 63 75 6c   .....sunt in cul
+|   3632: 70 61 20 71 75 68 20 6f 66 66 69 63 69 61 20 64   pa quh officia d
+|   3648: 65 73 65 72 75 6e 74 20 6d 6f 6c 6c 69 74 20 61   eserunt mollit a
+|   3664: 6e 69 6d 20 69 64 20 65 73 74 20 6c 61 62 6f 72   nim id est labor
+|   3680: 75 6d 2e 32 07 03 01 6b 45 78 63 65 70 74 65 75   um.2...kExcepteu
+|   3696: 72 20 73 69 6e 74 20 6f 63 63 61 65 63 61 74 20   r sint occaecat 
+|   3712: 63 75 70 69 64 61 74 61 74 20 6e 6f 6e 20 70 72   cupidatat non pr
+|   3728: 6f 69 64 65 6e 74 2c 2a 06 03 00 5b 63 69 6c 6c   oident,*...[cill
+|   3744: 75 6d 20 64 6f 6c 6f 72 65 20 65 75 20 66 75 67   um dolore eu fug
+|   3760: 69 61 74 20 6e 75 6c 6c 61 20 70 61 72 69 61 74   iat nulla pariat
+|   3776: 75 72 2e 43 05 04 00 81 09 44 75 69 73 20 61 75   ur.C.....Duis au
+|   3792: 74 65 20 69 72 75 72 65 20 64 6f 6c 6f 72 20 69   te irure dolor i
+|   3808: 6e 20 72 65 70 72 65 68 65 6e 64 65 72 69 74 20   n reprehenderit 
+|   3824: 69 6e 20 76 6f 6c 75 70 74 61 74 65 20 76 65 6c   in voluptate vel
+|   3840: 69 74 20 65 73 73 65 2b 14 03 00 5d 6e 69 73 69   it esse+...]nisi
+|   3856: 20 75 74 20 61 6c 69 71 75 69 70 20 65 78 20 65    ut aliquip ex e
+|   3872: 61 20 63 6f 6d 6d 6f 64 6f 20 63 6f 6e 73 65 71   a commodo conseq
+|   3888: 75 61 74 2e 46 03 04 00 81 11 55 74 20 65 6e 69   uat.F.....Ut eni
+|   3904: 6d 20 61 63 20 6d 69 6e 69 6d 20 76 65 6e 69 61   m ac minim venia
+|   3920: 6d 2c 20 71 75 69 73 20 6e 6f 73 74 72 75 64 20   m, quis nostrud 
+|   3936: 65 78 65 72 63 69 74 61 74 69 6f 6e 20 75 6c 6c   exercitation ull
+|   3952: 61 6d 63 6f 20 6c 61 62 6f 72 69 73 46 02 04 00   amco laborisF...
+|   3968: 81 11 73 65 64 20 64 6f 20 65 69 75 73 6d 6f 64   ..sed do eiusmod
+|   3984: 20 74 65 6d 70 6f 72 20 69 6e 63 69 64 69 64 75    tempor incididu
+|   4000: 6e 74 20 75 74 20 6c 61 62 6f 72 65 20 65 74 20   nt ut labore et 
+|   4016: 64 6f 6c 6f 72 65 20 6d 61 67 6e 61 20 61 6c 69   dolore magna ali
+|   4032: 71 75 61 2e 3a 01 03 00 7b 4c 6f 72 65 6d 20 69   qua.:....Lorem i
+|   4048: 70 73 75 6d 20 64 6f 6c 6f 72 20 73 69 74 20 61   psum dolor sit a
+|   4064: 6d 65 74 2c 20 63 6f 6e 73 65 63 74 65 74 75 72   met, consectetur
+|   4080: 20 61 64 69 70 69 73 63 69 6e 67 20 65 6c 69 74    adipiscing elit
+| page 3 offset 8192
+|      0: 0d 00 00 00 00 10 00 00 00 00 00 00 00 00 00 00   ................
+| page 4 offset 12288
+|      0: 0d 00 00 00 03 0a a6 00 0d 57 0c 4a 0a a6 00 00   .........W.J....
+|   2720: 00 00 00 00 00 00 83 21 03 08 02 08 08 08 17 86   .......!........
+|   2736: 30 08 00 30 20 34 30 32 00 02 61 64 06 01 08 00   0..0 402..ad....
+|   2752: 02 04 00 01 01 6c 06 02 0c 00 02 04 00 01 01 6d   .....l.........m
+|   2768: 03 01 06 00 01 01 6e 03 08 09 00 01 01 75 03 05   ......n......u..
+|   2784: 03 00 00 02 63 69 03 06 01 00 01 01 6f 07 01 07   ....ci......o...
+|   2800: 00 03 07 03 00 01 01 75 06 07 05 00 01 04 00 00   .......u........
+|   2816: 02 64 65 03 08 07 00 01 01 6f 0d 01 04 00 01 03   .de......o......
+|   2832: 09 00 03 05 00 01 03 00 01 01 75 03 05 02 00 00   ..........u.....
+|   2848: 02 65 61 03 04 06 00 01 01 69 03 02 04 00 01 01   .ea......i......
+|   2864: 6c 03 01 09 00 01 01 6e 03 03 03 00 01 01 73 06   l......n......s.
+|   2880: 05 0b 00 03 0b 00 01 01 74 03 02 09 00 01 01 75   ........t......u
+|   2896: 03 06 04 00 01 01 78 09 03 09 00 01 05 00 03 02   ......x.........
+|   2912: 00 00 02 66 75 03 06 05 00 00 02 69 64 03 08 0a   ...fu......id...
+|   2928: 00 01 01 6e 0a 02 06 00 03 06 04 00 03 03 00 01   ...n............
+|   2944: 01 70 03 01 13 00 01 01 72 03 05 04 00 00 02 6c   .p......r......l
+|   2960: 61 09 02 08 00 01 0b 00 05 0c 00 01 01 6f 03 01   a............o..
+|   2976: 02 00 00 02 6d 61 03 02 0b 00 01 01 69 03 03 05   ....ma......i...
+|   2992: 00 01 01 6f 03 08 08 00 00 02 6e 69 03 04 02 00   ...o......ni....
+|   3008: 01 01 6f 06 03 08 00 04 06 00 01 01 75 03 06 06   ..o.........u...
+|   3024: 00 00 02 6f 63 03 07 04 00 01 01 66 03 08 06 00   ...oc......f....
+|   3040: 00 02 70 61 03 06 07 00 01 01 72 03 07 07 00 00   ..pa......r.....
+|   3056: 02 71 75 06 03 07 00 05 05 00 00 02 72 65 03 05   .qu.........re..
+|   3072: 07 00 00 02 73 65 03 02 02 00 01 01 69 06 01 05   ....se......i...
+|   3088: 00 06 03 00 01 01 75 03 08 02 00 00 02 74 65 03   ......u......te.
+|   3104: 03 05 00 00 02 72 bc 03 03 0a 00 01 01 74 09 02   .....r.......t..
+|   3120: 07 00 01 02 00 01 03 00 00 02 76 65 06 03 06 00   ..........ve....
+|   3136: 02 0a 00 01 01 6f 03 05 09 00 82 0a 02 08 02 08   .....o..........
+|   3152: 08 08 17 84 02 04 00 30 20 32 35 31 00 01 61 13   .......0 251..a.
+|   3168: 01 06 04 00 01 0c 00 01 04 00 01 04 00 01 03 00   ................
+|   3184: 03 09 00 00 01 63 10 01 07 00 03 07 03 00 02 02   .....c..........
+|   3200: 00 01 05 00 01 04 00 00 01 64 11 01 04 00 01 03   .........d......
+|   3216: 09 00 03 02 05 00 01 03 00 02 07 00 00 01 65 1b   ..............e.
+|   3232: 01 09 00 01 04 07 00 01 03 08 00 01 05 03 00 01   ................
+|   3248: 0b 00 01 04 00 01 02 00 01 0b 00 00 01 66 03 06   .............f..
+|   3264: 05 00 00 01 69 0f 01 03 00 01 06 00 02 04 04 04   ....i...........
+|   3280: 00 03 03 09 00 00 01 6c 0c 01 02 00 01 08 00 01   .......l........
+|   3296: 0b 00 05 0c 00 00 01 6d 09 02 0b 00 01 05 00 05   .......m........
+|   3312: 08 00 00 01 6e 0c 03 08 00 01 02 00 02 06 00 01   ....n...........
+|   3328: 06 00 f0 01 6f 06 07 04 00 01 06 00 00 01 70 06   ....o.........p.
+|   3344: 06 07 00 01 07 00 00 01 71 06 03 07 00 05 05 00   ........q.......
+|   3360: 00 01 72 03 05 08 00 00 01 73 0c 01 05 00 01 02   ..r......s......
+|   3376: 00 05 03 00 01 02 00 00 01 74 03 02 05 00 00 01   .........t......
+|   3392: 75 0a 02 07 00 01 02 0a 00 01 03 00 00 01 76 07   u.............v.
+|   3408: 03 06 00 02 09 03 00 85 26 01 08 08 08 08 08 17   ........&.......
+|   3424: 8a 3e 30 21 36 36 35 00 02 61 64 03 03 04 00 02   .>0!665..ad.....
+|   3440: 08 69 70 69 73 63 69 6e 67 03 01 08 00 01 05 6c   .ipiscing......l
+|   3456: 69 71 75 61 03 02 0c 00 05 02 69 70 03 04 04 00   iqua......ip....
+|   3472: 01 03 6d 65 74 03 01 06 00 01 03 6e 69 6d 03 08   ..met......nim..
+|   3488: 09 00 01 03 75 74 65 03 05 03 00 00 06 63 69 6c   ....ute......cil
+|   3504: 6c 75 6d 03 06 02 00 01 06 6f 6d 6d 6f 64 6f 03   lum......ommodo.
+|   3520: 04 07 00 02 09 6e 73 65 63 74 65 74 75 72 03 01   .....nsectetur..
+|   3536: 07 00 05 04 71 75 61 74 03 04 08 00 01 04 75 6c   ....quat......ul
+|   3552: 70 61 03 08 04 00 02 07 70 69 64 61 74 61 74 03   pa......pidatat.
+|   3568: 07 05 00 00 08 64 65 73 65 72 75 6e 74 03 08 07   .....deserunt...
+|   3584: 00 01 01 6f 03 02 03 00 02 03 6c 6f 72 06 01 04   ...o......lor...
+|   3600: 00 04 05 00 05 01 65 06 02 0a 00 04 03 00 01 03   ......e.........
+|   3616: 75 69 73 03 05 02 00 00 02 65 61 03 04 06 00 01   uis......ea.....
+|   3632: 06 69 75 73 6d 6f 64 03 02 04 00 01 03 6c 69 74   .iusmod......lit
+|   3648: 03 01 09 00 01 03 6e 69 6d 03 03 03 00 01 03 73   ......nim......s
+|   3664: 73 65 03 05 0b 00 02 01 74 03 08 0b 00 01 01 74   se......t......t
+|   3680: 03 02 09 00 01 01 75 03 06 04 00 01 01 78 03 04   ......u......x..
+|   3696: 05 00 02 07 63 65 70 74 65 75 72 03 07 02 00 02   ....cepteur.....
+|   3712: 0a 65 72 63 69 74 61 74 69 6f 6e 03 03 09 00 00   .ercitation.....
+|   3728: 06 66 75 67 69 61 74 03 06 05 00 00 02 69 64 03   .fugiat......id.
+|   3744: 08 0a 00 01 01 6e 07 05 06 04 00 03 03 00 02 08   .....n..........
+|   3760: 63 69 64 69 64 75 6e 74 03 02 06 00 01 04 70 73   cididunt......ps
+|   3776: 75 6d 03 01 03 00 01 04 72 75 72 65 03 05 04 00   um......rure....
+|   3792: 00 06 6c 61 62 6f 72 65 03 02 08 00 05 02 69 73   ..labore......is
+|   3808: 03 03 0b 00 05 02 75 6d 03 08 0c 00 01 04 6f 72   ......um......or
+|   3824: 65 6d 03 01 02 00 00 05 6d 61 67 6e 61 03 02 0b   em......magna...
+|   3840: 00 01 04 69 6e 69 6d 03 03 05 00 01 05 6f 6c 6c   ...inim......oll
+|   3856: 69 74 03 08 08 00 00 04 6e 69 73 69 03 04 02 00   it......nisi....
+|   3872: 01 02 6f 6e 03 07 06 00 02 05 73 74 72 75 64 03   ..on......strud.
+|   3888: 03 08 00 01 04 75 6c 6c 61 03 06 06 00 00 08 6f   .....ulla......o
+|   3904: 63 63 61 65 63 61 74 03 07 04 00 01 06 66 66 69   ccaecat......ffi
+|   3920: 63 69 61 03 08 06 00 00 08 70 61 72 69 61 74 75   cia......pariatu
+|   3936: 72 03 06 07 00 01 07 72 6f 69 64 65 6e 74 03 07   r......roident..
+|   3952: 07 00 00 03 71 75 69 03 08 05 00 03 01 73 03 03   ....qui......s..
+|   3968: 07 00 00 0d 72 65 41 72 65 68 65 6e 64 65 72 69   ....reArehenderi
+|   3984: 74 03 05 07 00 00 03 73 65 64 03 02 02 00 01 03   t......sed......
+|   4000: 69 6e 74 03 07 03 00 02 01 74 03 01 05 00 01 03   int......t......
+|   4016: 75 6e 74 03 08 02 00 00 06 74 65 6d 70 6f 72 03   unt......tempor.
+|   4032: 02 05 00 00 07 75 6c 6c 61 6d 63 6f 03 03 0a 00   .....ullamco....
+|   4048: 01 01 74 09 02 07 00 01 02 00 01 03 00 00 05 76   ..t............v
+|   4064: 65 6c 69 74 03 05 0a 00 02 04 6e 69 61 6d 03 03   elit......niam..
+|   4080: 06 00 01 08 70 6c 75 70 74 61 74 65 03 05 09 00   ....pluptate....
+| page 5 offset 16384
+|      0: 0a 00 00 00 03 0f eb 00 0f fb 0f f3 0f eb 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 07 04 02 08 01   ................
+|   4080: 08 00 03 07 04 0a 98 01 04 00 02 04 04 08 08 09   ................
+| page 6 offset 20480
+|      0: 0d 00 00 00 08 0f d0 00 0f fa 0f f4 0f ee 0f e8   ................
+|     16: 0f e2 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4048: 04 08 03 00 0e 0b 04 07 03 00 0e 06 04 06 03 00   ................
+|   4064: 0e 06 04 05 03 00 0e 0a 04 04 03 00 0e 07 04 03   ................
+|   4080: 03 00 0e 0a 04 02 03 00 0e 0b 04 01 03 00 0e 08   ................
+| page 7 offset 24576
+|      0: 0d 00 00 00 01 0f f7 00 0f f7 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 07 00 03 00 14 08 45 b5 03   .............E..
+| end crash-afecd03c862e58.db
+}]} {}
+
+do_execsql_test 20.1 {
+  PRAGMA writable_schema = 1;
+  BEGIN;
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<10)
+    INSERT INTO t1(a) SELECT randomblob(3000) FROM c;
+}
+
+do_execsql_test 20.2 {
+  INSERT INTO t1(t1) VALUES('optimize');
+} 
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 21.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 28672 pagesize 4096 filename crash-18cc014e42e828.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 07   .....@  ........
+|     32: 00 00 00 02 00 00 00 01 00 00 00 07 00 00 00 04   ................
+|     96: 00 00 00 00 0d 0e b1 00 06 0d a4 00 0f 8d 0f 21   ...............!
+|    112: 0e b9 0d c8 0e 7e 0d a4 00 00 00 00 00 00 00 00   .....~..........
+|   3488: 00 00 00 00 22 07 06 17 11 11 01 31 74 61 62 6c   ...........1tabl
+|   3504: 66 74 32 74 32 07 43 52 45 41 54 45 20 54 41 42   ft2t2.CREATE TAB
+|   3520: 4c 45 20 74 32 28 78 29 81 33 05 07 17 1f 1f 01   LE t2(x).3......
+|   3536: 82 35 74 61 62 6c 65 74 31 5f 73 75 67 64 69 72   .5tablet1_sugdir
+|   3552: 74 31 5f 73 65 67 64 69 72 05 43 52 45 41 54 45   t1_segdir.CREATE
+|   3568: 20 54 41 42 4c 45 20 27 74 31 5f 73 65 67 64 69    TABLE 't1_segdi
+|   3584: 72 27 28 6c 65 76 65 6c 20 49 4e 54 45 47 45 52   r'(level INTEGER
+|   3600: 2c 69 64 78 20 49 4e 54 45 47 45 52 2c 73 74 61   ,idx INTEGER,sta
+|   3616: 72 74 5f 62 6c 6f 63 6b 20 49 4e 54 46 47 45 52   rt_block INTFGER
+|   3632: 2c 6c 65 61 76 65 73 5f 65 6e 64 5f 62 6c 6f 63   ,leaves_end_bloc
+|   3648: 6b 20 49 4e 54 45 47 45 52 2c 65 6e 64 5f 62 6c   k INTEGER,end_bl
+|   3664: 6f 63 6b 20 49 4e 54 45 47 45 62 2c 72 6f 6f 74   ock INTEGEb,root
+|   3680: 20 42 4c 4f 42 2c 50 52 49 4d 41 52 59 20 4b 45    BLOB,PRIMARY KE
+|   3696: 59 28 6c 65 76 65 6c 2c 20 69 64 78 29 29 31 06   Y(level, idx))1.
+|   3712: 06 17 45 1f 01 00 69 6e 64 65 78 73 71 6c 69 74   ..E...indexsqlit
+|   3728: 65 5f 61 75 74 6f 69 6e 64 65 78 5f 74 31 5f 73   e_autoindex_t1_s
+|   3744: 65 67 64 69 72 5f 31 74 31 5f 73 65 67 64 69 72   egdir_1t1_segdir
+|   3760: 06 0f c7 00 08 00 00 00 00 66 04 07 17 23 23 01   .........f...##.
+|   3776: 81 13 74 61 62 6c 65 74 31 5f 73 65 67 6d 65 6e   ..tablet1_segmen
+|   3792: 74 73 74 31 5f 73 65 67 6d 65 6e 74 73 04 43 52   tst1_segments.CR
+|   3808: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 73   EATE TABLE 't1_s
+|   3824: 65 67 6d 65 6e 74 73 27 28 62 6c 6f 63 6b 69 64   egments'(blockid
+|   3840: 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59    INTEGER PRIMARY
+|   3856: 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42    KEY, block BLOB
+|   3872: 29 6a 03 07 17 21 21 01 81 1f 74 61 62 6c 65 74   )j...!!...tablet
+|   3888: 31 5f 63 6f 6e 74 65 6e 74 74 31 5f 63 6f 6e 74   1_contentt1_cont
+|   3904: 65 6e 74 03 43 52 45 41 54 45 20 54 41 42 4c 45   ent.CREATE TABLE
+|   3920: 20 27 74 31 5f 63 6f 6e 74 65 6e 74 27 28 64 6f    't1_content'(do
+|   3936: 63 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   cid INTEGER PRIM
+|   3952: 41 52 59 20 4b 45 59 2c 20 27 63 30 61 27 2c 20   ARY KEY, 'c0a', 
+|   3968: 27 63 31 62 27 2c 20 27 63 32 63 27 29 38 02 06   'c1b', 'c2c')8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 33   LE t1 USING fts3
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 00 00 00 00 00 00   (a,b,c).........
+| page 3 offset 8192
+|      0: 0d 00 00 00 25 0b 48 00 0f d8 0f af 0f 86 0f 74   ....%.H........t
+|     16: 0f 61 0f 4e 0f 2f 0f 0f 0e ef 0e d7 0e be 0e a5   .a.N./..........
+|     32: 0e 8d 0e 74 0e 5b 0e 40 0e 24 0e 08 0d ef 0d d5   ...t.[.@.$......
+|     48: 0d bb 0d a0 0d 84 0d 68 0d 4e 0d 35 0d 1b 0c fb   .......h.N.5....
+|     64: 0c da 0c b9 0c 99 0c 78 0c 57 0c 3e 0c 24 00 00   .......x.W.>.$..
+|   2880: 00 00 00 00 00 00 00 00 81 3f 25 06 00 82 7f 00   .........?%.....
+|   2896: 00 43 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e   .COMPILER=gcc-5.
+|   2912: 34 23 00 20 32 30 31 36 30 36 30 39 20 44 45 42   4#. 20160609 DEB
+|   2928: 55 47 20 45 4e 41 42 4c 45 20 44 42 53 54 41 54   UG ENABLE DBSTAT
+|   2944: 20 56 54 41 42 20 45 4e 41 42 4c 45 20 46 43 53    VTAB ENABLE FCS
+|   2960: 34 20 45 4e 41 42 4c 45 20 46 54 53 35 20 45 4e   4 ENABLE FTS5 EN
+|   2976: 41 42 4c 45 20 47 45 4f 50 4f 4c 59 20 45 4e 41   ABLE GEOPOLY ENA
+|   2992: 42 4c 45 20 4a 53 4f 4e 31 20 45 4e 41 42 4c 45   BLE JSON1 ENABLE
+|   3008: 20 4d 45 4d 53 59 53 35 20 45 4e 41 42 4c 45 20    MEMSYS5 ENABLE 
+|   3024: 52 54 52 45 45 20 4d 41 58 20 4d 45 4d 4f 52 59   RTREE MAX MEMORY
+|   3040: 3d 35 30 30 30 30 30 30 30 20 4f 4d 49 54 20 4c   =50000000 OMIT L
+|   3056: 4f 41 44 20 45 58 54 45 4e 53 49 4f 4e 20 54 48   OAD EXTENSION TH
+|   3072: 52 45 41 44 53 41 46 45 3d 30 18 24 05 00 25 0f   READSAFE=0.$..%.
+|   3088: 19 54 48 52 45 41 44 53 41 46 45 3d 30 58 42 49   .THREADSAFE=0XBI
+|   3104: 4e 41 52 59 18 23 05 00 25 0f 19 54 48 52 45 41   NARY.#..%..THREA
+|   3120: 44 53 41 46 45 3d 30 58 4e 4f 43 41 53 45 17 22   DSAFE=0XNOCASE..
+|   3136: 05 00 25 0f 17 54 48 52 45 41 44 53 41 46 45 3d   ..%..THREADSAFE=
+|   3152: 30 58 52 54 52 49 4d 20 21 05 00 33 0f 19 4f 4d   0XRTRIM !..3..OM
+|   3168: 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49 4f   IT LOAD EXTENSIO
+|   3184: 4e 58 42 49 4e 41 52 59 1f 20 05 00 33 0f 19 4f   NXBINARY. ..3..O
+|   3200: 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49   MIT LOAD EXTENSI
+|   3216: 4f 4e 58 4e 4f 43 41 53 45 1e 1f 05 00 33 0f 17   ONXNOCASE....3..
+|   3232: 4f 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53   OMIT LOAD EXTENS
+|   3248: 49 4f 4e 58 52 54 52 49 4d 1f 1e 05 00 33 0f 19   IONXRTRIM....3..
+|   3264: 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30 30   MAX MEMORY=50000
+|   3280: 30 30 30 58 42 49 4e 41 52 59 1f 1d 05 00 33 0f   000XBINARY....3.
+|   3296: 19 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30   .MAX MEMORY=5000
+|   3312: 30 30 30 30 58 4e 4f 43 41 53 45 1e 1c 05 00 33   0000XNOCASE....3
+|   3328: 0f 17 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30   ..MAX MEMORY=500
+|   3344: 30 30 30 30 30 58 52 54 52 49 4d 18 1b 05 00 25   00000XRTRIM....%
+|   3360: 0f 19 45 4e 41 42 4c 45 20 52 54 52 45 45 58 42   ..ENABLE RTREEXB
+|   3376: 49 4e 41 52 59 18 1a 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3392: 4c 45 20 52 54 52 45 45 58 4e 4f 43 41 53 45 17   LE RTREEXNOCASE.
+|   3408: 19 05 00 25 0f 17 45 4e 41 42 4c 45 20 52 54 52   ...%..ENABLE RTR
+|   3424: 45 45 58 52 54 52 49 4d 1a 18 05 00 29 0f 19 45   EEXRTRIM....)..E
+|   3440: 4e 41 42 4c 45 20 4d 45 4d 53 59 53 35 58 42 49   NABLE MEMSYS5XBI
+|   3456: 4e 41 52 59 1a 17 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3472: 45 20 4d 45 4d 53 59 53 35 58 4e 4f 43 41 53 45   E MEMSYS5XNOCASE
+|   3488: 19 16 05 00 29 0f 17 45 4e 41 42 4c 45 20 4d 45   ....)..ENABLE ME
+|   3504: 4d 53 59 53 35 58 52 54 52 49 4d 18 15 05 00 25   MSYS5XRTRIM....%
+|   3520: 0f 19 45 4e 41 42 4c 45 20 4a 53 4f 4e 31 58 42   ..ENABLE JSON1XB
+|   3536: 49 4e 41 52 59 18 14 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3552: 4c 45 20 4a 53 4f 4e 31 58 4e 4f 43 41 53 45 17   LE JSON1XNOCASE.
+|   3568: 13 05 00 25 0f 17 45 4e 41 42 4c 45 20 4a 53 4f   ...%..ENABLE JSO
+|   3584: 4e 31 58 52 54 52 49 4d 1a 12 05 00 29 0f 19 45   N1XRTRIM....)..E
+|   3600: 4e 41 42 4c 45 20 47 45 4f 50 4f 4c 59 58 42 39   NABLE GEOPOLYXB9
+|   3616: 4e 41 52 59 1a 11 05 00 29 0f 19 45 4e 41 1e 4c   NARY....)..ENA.L
+|   3632: 45 20 47 45 4f 50 4f 4c 59 58 4e 4f 43 41 53 45   E GEOPOLYXNOCASE
+|   3648: 19 10 05 00 29 0f 17 45 4e 41 42 4c 45 20 47 45   ....)..ENABLE GE
+|   3664: 4f 50 4f 4c 59 58 52 54 52 49 4d 17 0f 05 00 23   OPOLYXRTRIM....#
+|   3680: 0f 19 45 4e 41 42 4c 45 20 46 54 53 35 58 42 49   ..ENABLE FTS5XBI
+|   3696: 4e 41 52 59 17 0e 05 00 23 0f 19 45 4e 41 42 4c   NARY....#..ENABL
+|   3712: 45 20 46 54 53 35 58 4e 4f 43 41 53 45 16 0d 05   E FTS5XNOCASE...
+|   3728: 00 23 0f 16 45 4e 41 42 4c 45 20 46 54 53 35 58   .#..ENABLE FTS5X
+|   3744: 52 54 52 49 4d 17 0c 05 00 23 0f 19 45 4e 41 42   RTRIM....#..ENAB
+|   3760: 4c 45 20 46 54 53 34 58 42 48 4e 41 52 59 17 0b   LE FTS4XBHNARY..
+|   3776: 05 00 23 0e 19 45 4e 41 42 4c 45 20 46 54 53 35   ..#..ENABLE FTS5
+|   3792: 58 4e 4f 43 40 53 45 16 0a 05 00 23 0f 17 45 4e   XNOC@SE....#..EN
+|   3808: 41 42 4c 45 20 46 54 53 34 58 52 2e 52 49 4d 1e   ABLE FTS4XR.RIM.
+|   3824: 09 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3840: 54 41 54 20 56 54 41 42 58 42 49 4e 41 52 59 1e   TAT VTABXBINARY.
+|   3856: 08 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3872: 54 41 54 20 56 54 41 42 58 4e 4f 43 41 53 45 1d   TAT VTABXNOCASE.
+|   3888: 07 05 00 31 0f 17 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3904: 54 41 54 20 56 54 41 42 58 52 54 52 49 4d 11 06   TAT VTABXRTRIM..
+|   3920: 05 00 17 0f 19 44 45 42 55 47 58 42 49 4e 41 52   .....DEBUGXBINAR
+|   3936: 59 11 05 05 00 17 0f 19 44 45 42 55 47 58 4e 4f   Y.......DEBUGXNO
+|   3952: 43 41 53 45 10 04 05 00 17 0f 17 44 45 42 55 47   CASE.......DEBUG
+|   3968: 58 52 54 52 49 4d 27 03 05 00 43 0f 19 43 4f 4d   XRTRIM'...C..COM
+|   3984: 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e 30 20   PILER=gcc-5.4.0 
+|   4000: 32 30 31 36 30 36 30 39 58 42 49 da 41 52 59 27   20160609XBI.ARY'
+|   4016: 02 05 00 43 0f 19 43 4f 4d 50 49 4c 45 52 3d 67   ...C..COMPILER=g
+|   4032: 63 63 2d 35 2e 34 2e 30 20 32 30 31 36 30 36 30   cc-5.4.0 2016060
+|   4048: 39 58 4e 4f 43 41 53 45 26 01 05 00 43 0f 17 43   9XNOCASE&...C..C
+|   4064: 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 00 00 00 00   OMPILER=gcc-....
+| page 5 offset 16384
+|      0: 0d 00 00 00 02 0b a0 00 0c ad 0b a0 00 00 00 00   ................
+|   2976: 82 0a 02 08 08 09 08 08 17 84 06 30 20 32 35 33   ...........0 253
+|   2992: 00 01 30 04 25 06 1b 00 00 08 32 30 31 36 30 36   ..0.%.....201606
+|   3008: 30 3a 03 25 07 00 00 01 34 03 25 05 00 00 01 35   0:.%....4.%....5
+|   3024: 03 25 04 00 01 07 30 30 30 30 30 30 30 03 25 1a   .%....0000000.%.
+|   3040: 00 00 08 63 6f 6d 70 69 6c 65 72 03 25 02 00 00   ...compiler.%...
+|   3056: 06 64 62 73 74 61 74 03 25 0a 00 01 04 65 62 75   .dbstat.%....ebu
+|   3072: 67 03 25 08 00 00 06 65 6e 61 62 6c 65 09 25 09   g.%....enable.%.
+|   3088: 05 04 04 04 04 04 00 01 08 78 74 65 6e 73 69 6f   .........xtensio
+|   3104: 6e 03 25 1d 00 00 04 66 74 73 34 03 25 0d 00 03   n.%....fts4.%...
+|   3120: 01 35 03 25 0f 00 00 03 57 63 63 03 25 03 00 01   .5.%....Wcc.%...
+|   3136: 06 65 6f 70 6f 6c 79 03 25 11 00 00 05 6a 73 6f   .eopoly.%....jso
+|   3152: 6e 31 03 25 13 00 00 04 6c 6f 61 64 03 25 1c 00   n1.%....load.%..
+|   3168: 00 03 6d 61 78 03 25 18 00 01 05 65 6d 6f 72 79   ..max.%....emory
+|   3184: 03 25 19 00 03 04 73 79 73 35 03 25 15 00 00 04   .%....sys5.%....
+|   3200: 6f 6d 69 74 03 25 1b 00 00 05 72 74 72 65 65 03   omit.%....rtree.
+|   3216: 25 17 00 00 0a 74 68 72 65 64 64 73 61 66 65 03   %....threddsafe.
+|   3232: 25 1e 00 00 04 76 74 61 62 03 25 0b 00 86 50 01   %....vtab.%...P.
+|   3248: 08 08 08 08 08 17 8d 12 30 20 38 33 35 00 01 30   ........0 835..0
+|   3264: 12 01 06 00 01 06 00 01 06 00 1f 03 00 01 03 00   ................
+|   3280: 01 03 00 00 08 32 30 31 36 30 36 30 39 09 01 07   .....20160609...
+|   3296: 00 01 07 00 01 07 00 00 01 34 09 01 05 00 01 05   .........4......
+|   3312: 00 01 05 00 00 01 35 09 01 04 00 01 04 00 01 04   ......5.........
+|   3328: 00 01 07 30 30 30 30 30 30 30 09 1c 04 00 01 04   ...0000000......
+|   3344: 00 01 04 00 00 06 62 69 6e 61 72 79 3c 03 01 02   ......binary<...
+|   3360: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3376: 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00   ................
+|   3392: 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03   ................
+|   3408: 01 02 02 00 03 01 02 02 00 00 08 63 6f 6d 70 69   ...........compi
+|   3424: 6c 65 72 09 01 02 00 01 02 00 01 02 00 00 06 64   ler............d
+|   3440: 62 73 74 61 74 09 07 03 00 01 03 00 01 03 00 01   bstat...........
+|   3456: 04 65 62 75 67 09 04 02 00 01 02 00 01 02 00 00   .ebug...........
+|   3472: 06 65 6e 61 62 6c 65 3f 07 02 00 01 02 00 01 12   .enable?........
+|   3488: 00 01 02 00 01 02 00 01 02 00 01 02 0e 97 02 00   ................
+|   3504: 01 02 00 01 cb 00 01 02 00 01 02 00 01 02 10 01   ................
+|   3520: 02 00 01 02 00 01 02 01 01 02 00 01 02 00 01 02   ................
+|   3536: 00 01 02 00 01 02 00 01 08 78 74 65 6e 73 69 6f   .........xtensio
+|   3552: 6e 09 1f 04 00 01 04 00 01 04 00 00 04 66 74 73   n............fts
+|   3568: 34 09 0a 03 00 01 03 00 01 03 00 03 01 35 09 0d   4............5..
+|   3584: 03 00 01 03 00 01 03 00 00 03 67 63 63 09 01 03   ..........gcc...
+|   3600: 00 01 03 00 01 03 00 01 06 65 6f 70 6f 6c 79 09   .........eopoly.
+|   3616: 10 03 00 01 03 00 01 03 00 00 05 6a 73 6f 6e 31   ...........json1
+|   3632: 09 13 03 00 01 03 00 01 03 00 00 04 6c 6f 61 64   ............load
+|   3648: 09 1f 03 00 01 03 00 01 03 00 00 03 6d 61 78 09   ............max.
+|   3664: 1c 02 00 01 02 00 01 02 00 01 05 65 6d 6f 72 79   ...........emory
+|   3680: 09 1c 03 00 01 03 00 01 03 00 03 04 73 79 73 35   ............sys5
+|   3696: 09 16 03 00 01 03 00 01 03 00 00 06 6e 6f 63 61   ............noca
+|   3712: 73 65 3c 02 01 02 02 00 03 01 02 02 00 03 01 02   se<.............
+|   3728: 02 00 03 01 02 02 00 03 01 02 02 00 ab 01 02 02   ................
+|   3744: 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00   ................
+|   3760: 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00 00   ................
+|   3776: 04 6f 6d 69 74 09 1f 12 00 01 02 00 01 02 00 00   .omit...........
+|   3792: 05 72 74 72 65 65 09 19 03 00 01 03 00 01 03 00   .rtree..........
+|   3808: 03 02 69 6d 3c 01 01 02 02 00 03 01 02 02 00 03   ..im<...........
+|   3824: 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01   ................
+|   3840: 02 02 00 03 01 02 01 f0 03 01 02 02 00 03 01 02   ................
+|   3856: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3872: 00 00 0a 74 68 72 65 61 64 73 61 66 65 09 22 02   ...threadsafe...
+|   3888: 00 01 02 00 02 02 00 00 04 76 74 61 62 09 07 04   .........vtab...
+|   3904: 00 01 04 00 01 04 00 00 01 78 b4 01 01 01 08 a2   .........x......
+|   3920: 00 01 01 01 02 00 01 01 01 02 00 02 01 01 02 00   ................
+|   3936: 01 01 01 01 ff f1 01 01 02 00 01 01 01 02 00 01   ................
+|   3952: 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01   ................
+|   3968: 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01   ................
+|   3984: 02 00 01 01 01 02 00 01 01 01 02 01 01 01 01 02   ................
+|   4000: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+|   4016: 01 01 01 02 00 01 01 01 02 00 01 01 01 03 00 01   ................
+|   4032: 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01   ................
+|   4048: 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01   ................
+|   4064: 02 00 01 01 01 02 00 01 02 01 02 00 01 01 01 02   ................
+|   4080: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 02 0f f5 00 0f fb 0f f5 00 00 00 00   ................
+|   4080: 00 00 00 00 00 05 04 08 09 01 02 04 04 08 08 09   ................
+| page 7 offset 24576
+|      0: 0d 00 00 00 05 0f b8 00 00 00 00 00 00 00 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 0d 05 02 23 61 75 74 6f   ...........#auto
+|   4032: 6d 65 72 67 65 3d 35 0d 04 02 23 6d 65 72 67 65   merge=5...#merge
+|   4048: 3d 31 30 30 2c 38 11 03 02 2b 69 6e 74 65 67 72   =100,8...+integr
+|   4064: 69 74 79 2d 63 68 65 63 6b 09 02 02 1b 72 65 62   ity-check....reb
+|   4080: 75 69 6c 64 0a 01 02 1d 00 00 00 00 00 00 00 00   uild............
+| end crash-18cc014e42e828.db
+}]} {}
+
+do_catchsql_test 21.1 {
+  PRAGMA writable_schema = 1;
+  SELECT offsets(t1) FROM t1 WHERE t1 MATCH 'R*';
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 22.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 28672 pagesize 4096 filename crash-b794c89d922ac9.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 07   .....@  ........
+|     32: 00 00 00 02 00 00 00 01 00 00 00 07 00 00 00 00   ................
+|     96: 00 00 00 00 0d 0e b1 00 06 0d a4 00 0f 8d 0f 21   ...............!
+|    112: 0e b9 0d c8 0e 7e 0d a4 00 00 00 00 00 00 00 00   .....~..........
+|   3488: 00 00 00 00 22 07 06 17 11 11 01 31 74 61 62 6c   ...........1tabl
+|   3504: 65 74 32 74 32 07 43 52 45 41 54 45 20 54 41 42   et2t2.CREATE TAB
+|   3520: 4c 45 20 74 32 28 78 29 81 33 05 07 17 1f 1f 01   LE t2(x).3......
+|   3536: 82 35 74 61 61 6c 65 74 31 5f 73 65 67 64 69 72   .5taalet1_segdir
+|   3552: 74 31 5f 73 65 67 64 69 72 05 43 52 45 41 54 45   t1_segdir.CREATE
+|   3568: 20 54 41 42 4c 45 20 27 74 31 5f 73 65 67 64 69    TABLE 't1_segdi
+|   3584: 72 27 28 6c 65 76 65 6c 20 49 4e 54 45 47 45 52   r'(level INTEGER
+|   3600: 2c 69 64 78 20 49 4e 54 45 47 45 52 2c 73 74 61   ,idx INTEGER,sta
+|   3616: 72 74 5f 62 6c 6f 63 6b 20 49 4e 54 45 47 45 52   rt_block INTEGER
+|   3632: 2c 6c 65 61 76 65 73 5f 65 6e 64 5f 62 6c 6f 63   ,leaves_end_bloc
+|   3648: 6b 20 49 4e 54 45 47 45 52 2c 65 6e 64 5f 62 6c   k INTEGER,end_bl
+|   3664: 6f 63 6b 20 49 4e 54 45 47 45 52 2c 72 6f 6f 74   ock INTEGER,root
+|   3680: 20 42 4c 4f 42 2c 50 52 49 4d 41 52 59 20 4b 45    BLOB,PRIMARY KE
+|   3696: 59 28 6c 65 76 65 6c 2c 20 69 64 78 29 29 31 06   Y(level, idx))1.
+|   3712: 06 17 45 1f 01 00 69 6e 64 65 78 73 71 6c 69 74   ..E...indexsqlit
+|   3728: 65 5f 61 75 74 6f 69 6e 64 65 78 5f 74 31 5f 73   e_autoindex_t1_s
+|   3744: 65 67 64 69 72 5f 31 74 31 5f 73 65 67 64 69 72   egdir_1t1_segdir
+|   3760: 06 0f c7 00 08 00 00 00 00 66 04 07 17 23 23 01   .........f...##.
+|   3776: 81 13 74 61 62 6c 65 74 31 5f 73 65 67 6d 65 6e   ..tablet1_segmen
+|   3792: 74 73 74 31 5f 73 65 67 6d 65 6e 74 73 04 43 52   tst1_segments.CR
+|   3808: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 73   EATE TABLE 't1_s
+|   3824: 65 67 6d 65 6e 74 73 27 28 62 6c 6f 63 6b 69 64   egments'(blockid
+|   3840: 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59    INTEGER PRIMARY
+|   3856: 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42    KEY, block BLOB
+|   3872: 29 6a 03 07 17 21 21 01 81 1f 74 61 62 6c 65 74   )j...!!...tablet
+|   3888: 31 5f 63 6f 6e 84 65 6e 74 74 31 5f 63 6f 6e 74   1_con.entt1_cont
+|   3904: 65 6e 74 03 43 52 45 41 54 45 20 54 41 42 4c 45   ent.CREATE TABLE
+|   3920: 20 27 74 31 5f 63 6f 6e 74 65 6e 74 27 28 64 6f    't1_content'(do
+|   3936: 63 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   cid INTEGER PRIM
+|   3952: 41 52 59 20 4b 45 59 2c 20 27 63 30 61 27 2c 20   ARY KEY, 'c0a', 
+|   3968: 27 63 31 62 27 2c 20 27 63 32 63 27 29 38 02 06   'c1b', 'c2c')8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 33   LE t1 USING fts3
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 00 00 00 00 00 00   (a,b,c).........
+| page 3 offset 8192
+|      0: 0d 00 00 00 25 0b 48 00 0f d8 0f af 0f 86 0f 74   ....%.H........t
+|     16: 0f 61 0f 4e 0f 2f 0f 0f 0e ef 0e d7 0e be 0e a5   .a.N./..........
+|     32: 0e 8d 0e 74 0e 5b 0e 40 0e 24 0e 08 0d ef 0d d5   ...t.[.@.$......
+|     48: 0d bb 0d a0 0d 84 0d 68 0d 4f 0d 35 0d 1b 0c fb   .......h.O.5....
+|     64: 0c da 0c b9 0c 99 0c 78 0c 57 0c 3e 0c 24 0c 0a   .......x.W.>.$..
+|     80: 0b 48 00 00 00 00 00 00 00 00 00 00 00 00 00 00   .H..............
+|   2880: 00 00 00 00 00 00 00 00 81 3f 25 06 00 82 7f 00   .........?%.....
+|   2896: 00 43 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e   .COMPILER=gcc-5.
+|   2912: 34 2e 30 20 32 30 31 36 30 36 30 39 20 44 45 42   4.0 20160609 DEB
+|   2928: 55 47 20 45 4e 41 42 4c 45 20 44 42 53 54 41 54   UG ENABLE DBSTAT
+|   2944: 20 56 54 41 42 20 45 4e 41 42 4c 45 20 46 54 53    VTAB ENABLE FTS
+|   2960: 34 20 45 4e 41 42 4c 45 20 46 54 53 35 20 45 4e   4 ENABLE FTS5 EN
+|   2976: 41 42 4c 45 20 47 45 4f 50 4f 4c 59 20 45 4e 41   ABLE GEOPOLY ENA
+|   2992: 42 4c 45 20 4a 53 4f 4e 31 20 45 4e 41 42 4c 45   BLE JSON1 ENABLE
+|   3008: 20 4d 45 4d 53 49 53 35 20 45 4e 41 42 4c 45 20    MEMSIS5 ENABLE 
+|   3024: 52 54 52 45 45 20 4d 41 58 20 4d 45 4d 4f 52 59   RTREE MAX MEMORY
+|   3040: 3d 35 30 30 30 30 30 30 30 20 4f 4d 49 54 20 4c   =50000000 OMIT L
+|   3056: 4f 41 44 20 45 58 54 45 4e 53 49 4f 4e 20 54 48   OAD EXTENSION TH
+|   3072: 52 45 41 44 53 41 46 45 3d 30 18 24 05 00 26 0f   READSAFE=0.$..&.
+|   3088: 19 54 48 52 45 41 44 53 41 46 45 3d 30 58 42 49   .THREADSAFE=0XBI
+|   3104: 4e 41 52 59 18 23 05 00 25 0f 19 54 48 52 45 41   NARY.#..%..THREA
+|   3120: 44 53 41 46 45 3d 30 58 4e 4f 43 41 53 45 17 22   DSAFE=0XNOCASE..
+|   3136: 05 00 25 0f 17 54 48 52 45 41 44 53 41 46 45 3d   ..%..THREADSAFE=
+|   3152: 30 58 52 54 52 49 4d 1f 21 05 00 33 0f 19 4f 4d   0XRTRIM.!..3..OM
+|   3168: 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49 4f   IT LOAD EXTENSIO
+|   3184: 4e 58 42 49 4e 41 52 59 1f 20 05 00 33 0f 19 4f   NXBINARY. ..3..O
+|   3200: 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49   MIT LOAD EXTENSI
+|   3216: 4f 4e 58 4e 4f 43 41 53 45 1e 1f 05 00 33 0f 17   ONXNOCASE....3..
+|   3232: 4f 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53   OMIT LOAD EXTENS
+|   3248: 49 4f 4e 58 52 54 52 49 4d 1f 1e 05 00 33 0f 19   IONXRTRIM....3..
+|   3264: 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30 30   MAX MEMORY=50000
+|   3280: 30 30 30 58 42 49 4e 41 52 59 1f 1d 05 00 33 0f   000XBINARY....3.
+|   3296: 19 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30   .MAX MEMORY=5000
+|   3312: 30 30 30 30 58 4e 4f 43 41 53 45 1e 1c 05 00 33   0000XNOCASE....3
+|   3328: 0f 17 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30   ..MAX MEMORY=500
+|   3344: 30 30 30 30 30 58 52 54 52 49 4d 18 1b 05 00 25   00000XRTRIM....%
+|   3360: 0f 19 45 4e 41 42 4c 45 20 52 54 52 45 45 58 42   ..ENABLE RTREEXB
+|   3376: 49 4e 41 52 59 18 1a 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3392: 4c 55 20 52 54 52 45 45 58 4e 4f 43 41 53 45 17   LU RTREEXNOCASE.
+|   3408: 19 05 00 25 0f 17 45 4e 41 42 4c 45 20 52 54 52   ...%..ENABLE RTR
+|   3424: 45 45 58 52 54 52 49 4d 1a 18 05 00 29 0f 19 45   EEXRTRIM....)..E
+|   3440: 4e 41 42 4c 45 20 4d 45 4d 53 59 53 35 58 42 49   NABLE MEMSYS5XBI
+|   3456: 4e 41 52 59 1a 17 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3472: 45 20 4d 45 4d 53 59 53 35 58 4e 4f 43 41 53 45   E MEMSYS5XNOCASE
+|   3488: 19 16 05 00 29 0f 17 45 4e 41 42 4c 45 20 4d 45   ....)..ENABLE ME
+|   3504: 4d 53 59 53 35 58 52 54 52 49 4d 18 15 05 00 25   MSYS5XRTRIM....%
+|   3520: 0f 19 45 4e 41 42 4c 45 20 4a 53 4f 4e 31 58 42   ..ENABLE JSON1XB
+|   3536: 49 4e 41 52 59 18 14 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3552: 4c 45 20 4a 53 4f 4e 31 58 4e 4f 43 41 53 45 17   LE JSON1XNOCASE.
+|   3568: 13 05 00 25 0f 17 45 4e 41 42 4c 45 20 4a 53 4f   ...%..ENABLE JSO
+|   3584: 4e 31 58 52 54 52 49 4d 1a 12 05 00 29 0f 19 45   N1XRTRIM....)..E
+|   3600: 4e 41 42 4c 45 20 47 45 4f 50 4f 4c 59 58 42 49   NABLE GEOPOLYXBI
+|   3616: 4e 41 52 59 1a 11 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3632: 45 20 47 45 4f 50 4f 4c 59 58 4e 4f 43 41 53 45   E GEOPOLYXNOCASE
+|   3648: 19 10 05 00 29 0f 17 45 4e 41 42 4c 45 20 47 45   ....)..ENABLE GE
+|   3664: 4f 50 4f 4c 59 58 52 54 52 49 4d 17 0f 05 00 23   OPOLYXRTRIM....#
+|   3680: 0f 19 45 4e 41 42 4c 45 20 46 54 53 35 58 42 49   ..ENABLE FTS5XBI
+|   3696: 4e 41 52 59 17 0e 05 00 23 0f 19 45 4e 41 42 4c   NARY....#..ENABL
+|   3712: 45 20 46 54 53 35 58 4e 4f 43 41 53 45 16 0d 05   E FTS5XNOCASE...
+|   3728: 00 23 0f 17 45 4e 41 42 4c 45 20 46 54 53 35 58   .#..ENABLE FTS5X
+|   3744: 52 54 52 49 4d 17 0c 05 00 23 0f 19 45 4e 41 42   RTRIM....#..ENAB
+|   3760: 4c 45 19 46 54 53 34 58 42 49 4e 41 52 59 17 0b   LE.FTS4XBINARY..
+|   3776: 05 00 23 0f 19 45 4e 41 42 4e f5 20 46 54 53 34   ..#..ENABN. FTS4
+|   3792: 58 4e 4f 43 41 53 45 16 0a 05 00 23 0f 17 45 4e   XNOCASE....#..EN
+|   3808: 41 42 4c 45 20 46 54 53 34 58 52 54 52 49 4d 1e   ABLE FTS4XRTRIM.
+|   3824: 09 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3840: 54 41 54 20 56 54 41 42 58 42 49 4e 41 52 59 1e   TAT VTABXBINARY.
+|   3856: 08 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3872: 54 41 54 20 56 54 41 42 58 4e 4f 43 41 53 45 1d   TAT VTABXNOCASE.
+|   3888: 07 05 00 31 0f 17 45 4e 41 42 4c 45 20 44 41 53   ...1..ENABLE DAS
+|   3904: 54 41 54 20 56 54 41 42 58 52 54 52 49 4d 11 06   TAT VTABXRTRIM..
+|   3920: 05 00 17 0f 19 44 45 42 55 47 58 42 49 4e 41 52   .....DEBUGXBINAR
+|   3936: 59 11 05 05 00 17 0f 19 44 45 42 55 47 58 4e 4f   Y.......DEBUGXNO
+|   3952: 43 41 53 45 10 04 05 00 17 ab 17 44 45 42 55 47   CASE.......DEBUG
+|   3968: 48 52 54 52 49 4d 27 03 05 00 43 0f 19 43 4f 4d   HRTRIM'...C..COM
+|   3984: 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e 30 20   PILER=gcc-5.4.0 
+|   4000: 32 30 31 36 30 36 30 39 58 43 49 4e 41 52 59 27   20160609XCINARY'
+|   4016: 02 04 00 43 0f 19 43 4f 4d 50 49 4c 45 52 3d 67   ...C..COMPILER=g
+|   4032: 63 63 2d 35 2e 34 2e 30 20 32 30 31 36 30 36 30   cc-5.4.0 2016060
+|   4048: 39 58 4e 4f 43 41 53 45 26 01 05 00 43 0f 17 43   9XNOCASE&...C..C
+|   4064: 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e   OMPILER=gcc-5.4.
+|   4080: 30 20 32 30 31 36 30 36 30 39 58 52 54 52 49 4d   0 20160609XRTRIM
+| page 4 offset 12288
+|      0: 0d 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+| page 5 offset 16384
+|      0: 0d 00 00 00 02 0b a0 00 0c ad 0b a0 00 00 00 00   ................
+|   2976: 82 0a 02 08 08 09 08 08 17 84 06 30 20 32 35 33   ...........0 253
+|   2992: 00 01 30 04 25 06 1b 00 00 08 32 30 31 36 30 36   ..0.%.....201606
+|   3008: 30 39 03 25 07 00 00 01 34 03 25 05 00 00 01 35   09.%....4.%....5
+|   3024: 03 25 04 00 01 07 30 30 30 30 30 30 30 03 25 1a   .%....0000000.%.
+|   3040: 00 00 08 63 6f 6d 70 69 6c 65 72 03 25 02 00 00   ...compiler.%...
+|   3056: 06 64 62 73 74 61 74 03 25 0a 00 01 04 65 62 75   .dbstat.%....ebu
+|   3072: 67 03 25 08 00 00 06 65 6e 61 62 6c 65 09 25 09   g.%....enable.%.
+|   3088: 05 04 04 04 04 04 00 01 08 78 74 65 6e 73 69 6f   .........xtensio
+|   3104: 6e 03 25 1d 00 00 04 66 74 73 34 03 25 0d 00 03   n.%....fts4.%...
+|   3120: 01 35 03 25 0f 00 00 03 67 63 63 03 25 03 00 01   .5.%....gcc.%...
+|   3136: 06 65 6f 70 6f 6c 79 03 25 11 00 00 05 6a 73 6f   .eopoly.%....jso
+|   3152: 6e 31 03 25 13 00 00 04 6c 6f 61 64 03 25 1c 00   n1.%....load.%..
+|   3168: 00 03 6d 61 78 03 25 18 00 01 05 65 6d 6f 72 79   ..max.%....emory
+|   3184: 03 25 19 00 03 04 73 79 73 35 03 25 15 00 00 04   .%....sys5.%....
+|   3200: 6f 6d 69 74 03 25 1b 00 00 05 72 74 72 65 65 03   omit.%....rtree.
+|   3216: 25 17 00 00 0a 74 68 72 65 61 64 73 61 66 65 03   %....threadsafe.
+|   3232: 25 1e 00 00 04 76 74 61 62 03 25 0b 00 86 50 01   %....vtab.%...P.
+|   3248: 08 08 08 08 08 17 8d 12 30 20 38 33 35 00 01 30   ........0 835..0
+|   3264: 12 01 06 00 01 06 00 01 06 00 1f 03 00 01 03 00   ................
+|   3280: 01 03 00 00 08 32 30 31 36 30 36 30 39 09 01 07   .....20160609...
+|   3296: 00 01 07 00 01 07 00 00 01 34 09 01 05 00 01 05   .........4......
+|   3312: 00 01 05 00 00 01 35 09 01 04 00 01 04 00 01 04   ......5.........
+|   3328: 00 01 07 30 30 30 30 30 30 30 09 1c 04 00 01 04   ...0000000......
+|   3344: 00 01 04 00 00 06 62 69 6e 61 72 79 3c 03 01 02   ......binary<...
+|   3360: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3376: 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00   ................
+|   3392: 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03   ................
+|   3408: 01 02 02 00 03 01 02 02 00 00 08 63 6f 6d 70 69   ...........compi
+|   3424: 6c 65 72 09 01 02 00 01 02 00 01 02 00 00 06 64   ler............d
+|   3440: 62 73 74 61 74 09 07 03 00 01 03 00 01 03 00 01   bstat...........
+|   3456: 04 65 62 75 67 09 04 02 00 01 02 00 01 02 00 00   .ebug...........
+|   3472: 06 65 6e 61 62 6c 65 3f 07 02 00 01 02 00 01 02   .enable?........
+|   3488: 00 01 02 00 01 02 00 01 02 00 01 02 00 01 02 00   ................
+|   3504: 01 02 00 01 02 00 01 02 00 01 02 00 01 02 00 01   ................
+|   3520: 02 00 01 02 00 01 02 00 01 02 00 01 02 00 01 02   ................
+|   3536: 00 01 02 00 01 02 00 01 08 78 74 65 6e 73 69 6f   .........xtensio
+|   3552: 6e 09 1f 04 00 01 04 00 01 04 00 00 04 66 74 73   n............fts
+|   3568: 34 09 0a 03 d4 01 02 ff 01 03 00 03 01 35 09 0d   4............5..
+|   3584: 03 00 01 03 00 01 03 00 00 03 67 64 d3 09 01 03   ..........gd....
+|   3600: 00 01 03 00 01 03 00 01 06 65 6f 70 6f 6c 79 09   .........eopoly.
+|   3616: 10 03 00 01 03 00 01 03 00 00 05 6a 73 6f 6e 31   ...........json1
+|   3632: 19 13 03 00 01 03 00 01 03 00 00 04 6c 6f 61 64   ............load
+|   3648: 09 1f 03 00 01 03 00 01 03 00 00 03 6d 61 78 09   ............max.
+|   3664: 1c 02 00 01 02 00 01 02 00 01 05 65 6d 6f 72 79   ...........emory
+|   3680: 09 1c 03 00 01 03 00 01 03 00 03 04 73 79 73 35   ............sys5
+|   3696: 09 16 03 00 01 03 00 01 03 00 00 06 6e 6f 63 61   ............noca
+|   3712: 73 65 3c 02 01 02 02 00 03 01 02 02 00 03 01 02   se<.............
+|   3728: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3744: 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00   ................
+|   3760: 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00 00   ................
+|   3776: 04 6f 6d 69 74 09 1f 02 00 01 12 00 01 02 00 00   .omit...........
+|   3792: 05 72 74 72 65 65 09 19 03 00 01 07 80 00 f3 00   .rtree..........
+|   3808: 03 02 69 6d 3c 01 01 02 02 00 03 01 02 02 00 03   ..im<...........
+|   3824: 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01   ................
+|   3840: 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02   ................
+|   3856: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3872: 00 00 0a 74 68 72 65 61 64 73 61 66 65 09 22 02   ...threadsafe...
+|   3888: 00 01 02 00 01 02 00 00 04 76 74 61 62 09 07 04   .........vtab...
+|   3904: 00 01 04 00 01 04 00 00 01 78 b4 01 01 01 01 02   .........x......
+|   3920: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+|   3936: 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01   ................
+|   3952: 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01   ................
+|   3968: 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01   ................
+|   3984: 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02   ................
+|   4000: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+|   4016: 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01   ................
+|   4032: 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01   ................
+|   4048: 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01   ................
+|   4064: 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02   ................
+|   4080: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 02 0f f5 00 0f fb 0f f5 00 00 00 00   ................
+|   4080: 00 00 00 00 00 05 04 08 09 01 02 04 04 08 08 09   ................
+| page 7 offset 24576
+|      0: 0d 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 0d 05 02 23 61 75 74 6f   ...........#auto
+|   4032: 6d 65 72 67 65 3d 35 0d 04 02 23 6d 65 72 67 65   merge=5...#merge
+|   4048: 3d 31 30 30 2c 38 11 03 02 2b 69 6e 74 65 67 72   =100,8...+integr
+|   4064: 69 74 79 2d 63 68 65 63 6b 09 02 02 1b 72 65 62   ity-check....reb
+| end crash-b794c89d922ac9.db
+}]} {}
+
+do_catchsql_test 22.1 {
+  PRAGMA writable_schema = 1;
+  SELECT snippet(t1,'', '', '--',-1,01)==0
+    FROM t1 WHERE a MATCH 'rtree OR json1rtree OR json1';
+} {0 {0 0 0 0 0 0 0}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 23.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 28672 pagesize 4096 filename crash-670b15f2955a36.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 07   .....@  ........
+|     32: 00 00 00 02 10 00 00 01 00 00 00 07 00 00 00 00   ................
+|     96: 00 00 00 00 0d 0e b1 00 06 0d a4 00 0f 8d 0f 21   ...............!
+|    112: 0e b9 0d c8 0e 7e 0d a4 00 00 00 00 00 00 00 00   .....~..........
+|   3488: 00 00 00 00 22 07 06 17 11 11 01 31 74 61 62 6c   ...........1tabl
+|   3504: 65 74 32 74 32 07 43 52 45 41 54 45 20 54 41 42   et2t2.CREATE TAB
+|   3520: 4c 45 20 74 32 28 78 29 81 33 05 07 17 1f 1f 01   LE t2(x).3......
+|   3536: 82 35 74 61 62 6c 65 74 31 5f 73 65 67 64 69 72   .5tablet1_segdir
+|   3552: 74 31 5f 73 65 67 64 69 72 05 43 52 45 41 54 45   t1_segdir.CREATE
+|   3568: 20 54 41 42 4c 45 20 27 74 31 5f 73 65 67 64 69    TABLE 't1_segdi
+|   3584: 72 27 28 6c 65 76 65 6c 20 49 4e 54 45 47 45 52   r'(level INTEGER
+|   3600: 2c 69 64 78 20 49 4e 54 45 47 45 52 2c 73 74 61   ,idx INTEGER,sta
+|   3616: 72 74 5f 62 6c 6f 63 6b 20 49 4e 54 45 47 45 52   rt_block INTEGER
+|   3632: 2c 6c 65 61 76 65 73 5f 65 6e 64 5f 62 6c 6f 63   ,leaves_end_bloc
+|   3648: 6b 20 49 4e 54 45 47 45 52 2c 65 6e 64 5f 62 6c   k INTEGER,end_bl
+|   3664: 6f 63 6b 20 49 4e 54 45 47 45 52 2c 72 6f 6f 74   ock INTEGER,root
+|   3680: 20 42 4c 4f 42 2c 50 52 49 4d 41 52 59 20 4b 45    BLOB,PRIMARY KE
+|   3696: 59 28 6c 65 76 65 6c 2c 20 69 64 78 29 29 31 06   Y(level, idx))1.
+|   3712: 06 17 45 1f 01 00 69 6e 64 65 78 73 71 6c 69 74   ..E...indexsqlit
+|   3728: 65 5f 61 75 74 6f 69 6e 64 65 78 5f 74 31 5f 73   e_autoindex_t1_s
+|   3744: 65 67 64 69 72 5f 31 74 31 5f 73 65 67 64 69 72   egdir_1t1_segdir
+|   3760: 06 0f c7 00 08 00 00 00 00 66 04 07 17 23 23 01   .........f...##.
+|   3776: 81 13 74 61 62 6c 75 74 31 5f 73 65 67 6d 65 6e   ..tablut1_segmen
+|   3792: 74 73 74 31 5f 73 65 67 6d 65 6e 74 73 04 43 52   tst1_segments.CR
+|   3808: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 73   EATE TABLE 't1_s
+|   3824: 65 67 6d 65 6e 74 73 27 28 62 6c 6f 63 6b 69 64   egments'(blockid
+|   3840: 20 49 4e 54 45 47 45 42 20 50 52 49 4d 41 52 59    INTEGEB PRIMARY
+|   3856: 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42    KEY, block BLOB
+|   3872: 29 6a 03 07 17 21 21 01 81 1f 74 61 62 6c 65 74   )j...!!...tablet
+|   3888: 31 5f 63 6f 6e 74 65 6e 74 74 31 5f 63 6f 6e 74   1_contentt1_cont
+|   3904: 65 6e 74 03 43 52 45 41 54 45 20 54 41 42 4c 45   ent.CREATE TABLE
+|   3920: 20 27 74 31 5f 63 6f 6e 74 65 6e 74 27 28 64 6f    't1_content'(do
+|   3936: 63 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   cid INTEGER PRIM
+|   3952: 41 52 59 20 4b 45 59 2c 20 27 63 30 61 27 2c 20   ARY KEY, 'c0a', 
+|   3968: 27 63 31 62 27 2c 20 27 63 32 63 27 29 38 02 06   'c1b', 'c2c')8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 33   LE t1 USING fts3
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 00 00 00 00 00 00   (a,b,c).........
+| page 3 offset 8192
+|      0: 0d 00 00 00 25 0b 48 01 0f d8 00 2f 0f 86 0f 74   ....%.H..../...t
+|     16: 0f 61 0f 4e 0f 2f 0f 0f 0e ef 0e d7 0e be 0e a5   .a.N./..........
+|     32: 0e 8d 0e 74 0e 5a fe 40 0e 24 0e 08 0d ef 0d d5   ...t.Z.@.$......
+|     48: 0d bb 0d a0 0d 84 0d 68 0d 4f 81 35 0d 1b 0c fb   .......h.O.5....
+|     64: 0c da 0c b9 0c 99 0c 78 0c 57 0c 3e 00 00 00 00   .......x.W.>....
+|   2880: 00 00 00 00 00 00 00 00 81 3f 25 06 00 82 7f 10   .........?%.....
+|   2896: 00 43 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e   .COMPILER=gcc-5.
+|   2912: 34 2e 30 20 32 30 31 36 30 36 30 39 20 44 45 42   4.0 20160609 DEB
+|   2928: 55 47 20 45 4e 41 42 4c 45 20 44 42 53 54 41 54   UG ENABLE DBSTAT
+|   2944: 20 56 54 41 42 20 45 4e 41 42 4c 45 20 46 54 53    VTAB ENABLE FTS
+|   2960: 34 20 45 4e 41 42 4c 45 20 46 54 53 35 20 45 4e   4 ENABLE FTS5 EN
+|   2976: 41 42 4c 45 20 47 45 4f 50 4f 4c 59 20 45 4e 41   ABLE GEOPOLY ENA
+|   2992: 42 4c 45 20 4a 53 4f 4e 31 20 45 4e 41 42 4c 45   BLE JSON1 ENABLE
+|   3008: 20 4d 45 4d 53 59 53 35 20 45 4e 41 42 4c 45 20    MEMSYS5 ENABLE 
+|   3024: 52 54 52 45 45 20 4d 41 58 20 4d 45 4d 4f 52 59   RTREE MAX MEMORY
+|   3040: 3d 35 30 30 30 30 30 30 30 20 4f 4d 49 54 20 4c   =50000000 OMIT L
+|   3056: 4f 41 44 20 45 58 54 45 4e 53 49 4f 4e 20 54 48   OAD EXTENSION TH
+|   3072: 52 45 41 44 53 41 46 45 3d 30 18 24 05 00 35 0f   READSAFE=0.$..5.
+|   3088: 19 54 48 52 45 41 44 53 41 46 45 3d 30 58 42 49   .THREADSAFE=0XBI
+|   3104: 4e 41 52 59 18 23 55 00 25 0f 19 54 48 52 45 41   NARY.#U.%..THREA
+|   3120: 44 53 41 46 45 3d 30 58 4e 4f 43 41 53 45 17 22   DSAFE=0XNOCASE..
+|   3136: 05 00 25 0f 17 54 48 52 45 41 44 53 41 46 45 3d   ..%..THREADSAFE=
+|   3152: 30 58 52 54 52 49 4d 1f 21 05 00 33 0f 19 4f 4d   0XRTRIM.!..3..OM
+|   3168: 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49 4f   IT LOAD EXTENSIO
+|   3184: 4e 58 42 49 4e 41 52 59 1f 20 05 00 33 0f 19 4f   NXBINARY. ..3..O
+|   3200: 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49   MIT LOAD EXTENSI
+|   3216: 4f 4e 58 4e 4f 43 41 53 45 1e 1f 05 00 33 0f 17   ONXNOCASE....3..
+|   3232: 4f 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53   OMIT LOAD EXTENS
+|   3248: 49 4f 4e 58 52 54 52 49 4d 1f 1e 05 00 33 0f 19   IONXRTRIM....3..
+|   3264: 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30 30   MAX MEMORY=50000
+|   3280: 30 30 30 58 42 49 4e 41 52 59 1f 1d 05 00 33 0f   000XBINARY....3.
+|   3296: 19 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30   .MAX MEMORY=5000
+|   3312: 30 30 30 30 58 4e 4f 43 41 53 45 1e 1c 05 00 33   0000XNOCASE....3
+|   3328: 0f 17 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30   ..MAX MEMORY=500
+|   3344: 30 30 30 30 30 58 52 54 52 49 4d 18 1b 05 00 25   00000XRTRIM....%
+|   3360: 0f 19 45 4e 41 42 4c 44 20 52 54 52 45 45 58 42   ..ENABLD RTREEXB
+|   3376: 49 4e 41 52 59 18 1a 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3392: 4c 45 20 52 54 52 45 45 58 4e 4f 43 41 53 45 17   LE RTREEXNOCASE.
+|   3408: 19 05 00 24 0f 17 45 4e 40 42 4c 45 20 52 54 52   ...$..EN@BLE RTR
+|   3424: 45 45 58 52 54 52 49 4d 1a 18 05 00 29 0f 19 45   EEXRTRIM....)..E
+|   3440: 4e 41 42 4c 45 20 4d 45 4d 53 59 53 35 58 42 49   NABLE MEMSYS5XBI
+|   3456: 4e 41 52 59 1a 17 05 00 29 0f 19 45 4d 41 42 4c   NARY....)..EMABL
+|   3472: 45 20 4d 45 4d 53 59 53 35 58 4e 4f 43 41 4c 45   E MEMSYS5XNOCALE
+|   3488: 19 16 05 00 29 0f 17 45 4e 41 42 4c 45 20 4d 45   ....)..ENABLE ME
+|   3504: 4e 53 59 53 35 58 52 54 52 49 4d 18 15 05 00 25   NSYS5XRTRIM....%
+|   3520: 0f 19 45 4e 41 42 4c 45 20 4a 53 4f 4e 31 58 42   ..ENABLE JSON1XB
+|   3536: 49 4e 41 52 59 18 14 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3552: 4c 45 20 4a 53 4f 4e 31 58 4e 4f 43 41 53 45 17   LE JSON1XNOCASE.
+|   3568: 13 05 00 25 0f 17 45 4e 41 42 4c 45 20 4a 53 4f   ...%..ENABLE JSO
+|   3584: 4e 31 58 52 54 5f b9 4d 1a 12 05 00 29 0f 19 45   N1XRT_.M....)..E
+|   3600: 4e 41 42 4c 45 20 47 45 4f 50 31 4c 59 58 42 49   NABLE GEOP1LYXBI
+|   3616: 4e 41 52 58 1a 11 05 00 29 0f 19 45 4e 41 42 4c   NARX....)..ENABL
+|   3632: 45 20 47 45 4f 50 4f 4c 59 58 4e 4f 43 41 53 45   E GEOPOLYXNOCASE
+|   3648: 19 10 05 00 29 0f 17 45 4e 41 42 4c 45 20 57 45   ....)..ENABLE WE
+|   3664: 4f 50 4f 4c 59 48 52 54 52 49 4d 17 0f 05 00 23   OPOLYHRTRIM....#
+|   3680: 0f 19 45 4e 41 42 4c 45 20 46 54 53 35 58 42 49   ..ENABLE FTS5XBI
+|   3696: 4e 41 53 59 17 0e 05 00 23 0f 19 45 4e 40 42 4b   NASY....#..EN@BK
+|   3712: 45 20 46 54 53 35 58 4e 4f 43 41 53 45 16 0d 05   E FTS5XNOCASE...
+|   3728: 00 23 0f 17 45 4e 41 42 4c 45 20 46 54 53 35 58   .#..ENABLE FTS5X
+|   3744: 52 54 52 49 4d 17 0c 05 00 23 0f 19 45 4e 41 42   RTRIM....#..ENAB
+|   3760: 4c 45 20 46 54 94 34 58 42 49 4e 41 52 59 17 0b   LE FT.4XBINARY..
+|   3776: 05 00 23 0f 19 45 4e 41 42 4c 43 70 46 54 53 34   ..#..ENABLCpFTS4
+|   3792: 58 4e 4f 43 41 53 45 16 0a 05 00 23 0f 17 45 4e   XNOCASE....#..EN
+|   3808: 41 42 4c 45 20 46 54 53 34 58 52 54 52 49 4d 1e   ABLE FTS4XRTRIM.
+|   3824: 09 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3840: 54 41 54 20 56 54 41 42 58 42 49 4e 41 52 59 1e   TAT VTABXBINARY.
+|   3856: 08 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 32 53   ...1..ENABLE D2S
+|   3872: 54 41 54 20 56 54 41 42 58 4e 4f 43 41 53 45 1d   TAT VTABXNOCASE.
+|   3888: 07 05 00 31 0f 17 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3904: 54 41 54 20 56 54 41 42 58 52 54 52 49 4d 11 06   TAT VTABXRTRIM..
+|   3920: 05 0b 27 0f 19 44 45 42 55 47 58 42 49 4e 41 52   ..'..DEBUGXBINAR
+|   3936: 59 11 05 05 00 17 0f 19 44 45 42 55 47 58 4e 4f   Y.......DEBUGXNO
+|   3952: 43 41 53 45 10 03 05 00 17 0f 17 44 45 42 55 47   CASE.......DEBUG
+|   3968: 58 52 54 52 49 4d 27 03 05 00 43 0f 19 43 4f 4d   XRTRIM'...C..COM
+|   3984: 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e 30 20   PILER=gcc-5.4.0 
+|   4000: 32 30 31 36 30 36 30 39 58 42 49 4e 41 52 59 27   20160609XBINARY'
+|   4016: 02 05 00 43 0f 19 43 4f 4d 50 49 4c 35 52 3d 67   ...C..COMPIL5R=g
+|   4032: 63 63 2d 35 2e 34 2e 30 20 32 30 31 36 30 36 30   cc-5.4.0 2016060
+|   4048: 39 58 4e 4f 43 41 53 45 26 01 05 00 43 0f 02 43   9XNOCASE&...C..C
+|   4064: 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e   OMPILER=gcc-5.4.
+|   4080: 30 20 32 30 31 36 30 36 30 39 58 00 00 00 00 00   0 20160609X.....
+| page 5 offset 16384
+|      0: 0d 00 00 00 02 0b a0 00 0c ad 0b a0 00 00 00 00   ................
+|   2976: 82 0a 02 08 08 09 08 08 17 84 06 30 20 32 35 33   ...........0 253
+|   2992: 00 01 30 04 25 06 1b 00 00 08 32 30 31 36 30 36   ..0.%.....201606
+|   3008: 30 39 03 25 07 00 00 01 34 03 25 05 00 00 01 35   09.%....4.%....5
+|   3024: 03 25 04 00 01 07 30 30 30 30 30 30 30 08 55 1a   .%....0000000.U.
+|   3040: 00 00 08 63 6f 6d 70 69 6c 65 72 03 25 02 00 00   ...compiler.%...
+|   3056: 06 64 62 73 74 61 74 03 25 0a 00 01 04 65 61 75   .dbstat.%....eau
+|   3072: 67 03 25 08 00 00 06 65 6e 61 62 6c 65 09 25 09   g.%....enable.%.
+|   3088: 05 04 04 04 04 04 00 01 08 78 74 65 6e 73 69 6f   .........xtensio
+|   3104: 6e 03 25 1d 00 00 04 66 74 73 34 03 25 0d 00 03   n.%....fts4.%...
+|   3120: 01 35 03 25 0f 00 00 0c 97 63 63 03 25 03 00 01   .5.%.....cc.%...
+|   3136: 06 65 6f 70 6f 6c 7a 03 25 11 00 00 05 6a 73 6f   .eopolz.%....jso
+|   3152: 6e 31 03 25 13 00 00 04 6c 6f 61 64 03 25 1c 00   n1.%....load.%..
+|   3168: 00 03 6d 61 78 03 25 18 00 01 05 65 6d 6f 72 79   ..max.%....emory
+|   3184: 03 25 3d f0 03 04 73 79 73 35 03 25 15 00 00 04   .%=...sys5.%....
+|   3200: 6f 6d 69 74 03 25 1b 00 00 05 72 74 72 65 65 03   omit.%....rtree.
+|   3216: 25 17 00 00 0a 74 68 72 65 61 64 73 61 66 65 03   %....threadsafe.
+|   3232: 25 1e 00 00 04 76 74 61 62 03 25 0b 00 86 50 01   %....vtab.%...P.
+|   3248: 08 08 08 09 08 17 8d 12 30 20 38 33 37 e3 aa e0   ........0 837...
+|   3264: 12 d1 06 00 01 06 00 01 06 00 1f 03 00 01 03 00   ................
+|   3280: 01 03 00 00 08 32 30 31 36 30 36 30 49 09 01 07   .....2016060I...
+|   3296: 00 01 07 00 01 07 00 00 01 34 09 01 05 00 01 05   .........4......
+|   3312: 00 01 05 00 00 01 35 09 01 04 00 01 04 00 01 04   ......5.........
+|   3328: 00 01 07 30 30 30 30 30 30 30 09 1c 04 00 01 04   ...0000000......
+|   3344: 00 01 04 00 00 06 62 69 6e 61 72 79 3c 03 01 02   ......binary<...
+|   3360: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3376: 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00   ................
+|   3392: 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03   ................
+|   3408: 01 02 02 00 03 01 02 02 00 00 08 63 6f 6d 70 69   ...........compi
+|   3424: 6c 65 72 09 01 02 00 01 02 00 01 02 00 00 06 64   ler............d
+|   3440: 62 73 74 61 74 09 07 03 00 01 03 00 01 03 00 01   bstat...........
+|   3456: 04 65 62 75 67 09 04 01 f0 01 02 00 01 02 00 00   .ebug...........
+|   3472: 06 65 6e 61 62 6c 65 3f 07 02 00 01 02 00 01 02   .enable?........
+|   3488: 00 01 02 00 01 02 00 01 02 00 01 02 00 01 02 00   ................
+|   3504: 01 02 00 01 02 00 01 02 00 01 02 00 01 02 00 01   ................
+|   3520: 02 00 01 02 00 01 02 00 01 02 00 01 02 00 01 02   ................
+|   3536: 00 01 02 00 01 02 00 01 08 78 74 65 6e 73 69 6f   .........xtensio
+|   3552: 6e 09 1f 04 00 01 04 00 01 04 00 00 04 66 74 73   n............fts
+|   3568: 34 09 0a 03 f3 01 03 00 01 03 00 19 01 35 09 0d   4............5..
+|   3584: 03 00 01 03 00 01 03 00 00 03 67 63 63 09 01 03   ..........gcc...
+|   3600: 00 01 03 00 01 03 00 01 06 65 6f 70 6f 6c 79 09   .........eopoly.
+|   3616: 10 03 00 01 03 00 01 03 00 00 05 6a 73 6f 6e 31   ...........json1
+|   3632: 09 13 03 00 01 03 00 00 f3 00 00 04 6c 6f 61 64   ............load
+|   3648: 09 1f 03 00 01 03 00 01 03 00 00 03 6d 61 78 09   ............max.
+|   3664: 1c 02 00 01 02 00 01 02 00 01 05 65 6d 6f 72 79   ...........emory
+|   3680: 09 1c 03 00 01 03 00 01 03 00 03 04 73 79 73 35   ............sys5
+|   3696: 09 16 03 00 01 03 00 01 03 00 00 06 6e 6f 63 61   ............noca
+|   3712: 73 65 3c 02 01 02 02 00 03 01 02 02 00 03 01 02   se<.............
+|   3728: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3744: 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00   ................
+|   3760: 03 01 02 02 00 03 01 02 02 00 46 01 02 02 00 00   ..........F.....
+|   3776: 04 6f 6d 69 74 09 1f 02 00 01 02 00 01 02 00 00   .omit...........
+|   3792: 05 72 74 72 64 65 09 19 03 00 01 03 00 01 03 00   .rtrde..........
+|   3808: 03 02 69 6d 3c 01 01 02 02 00 03 01 02 02 00 03   ..im<...........
+|   3824: 01 02 02 00 03 01 02 01 ff 03 01 02 02 00 03 01   ................
+|   3840: 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02   ................
+|   3856: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3872: 00 00 0a 74 68 72 65 61 64 73 61 66 65 09 22 02   ...threadsafe...
+|   3888: 00 01 02 00 01 02 00 00 04 76 74 61 62 09 07 04   .........vtab...
+|   3904: 00 01 04 00 01 04 00 00 01 78 b4 01 01 01 01 02   .........x......
+|   3920: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+|   3936: 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01   ................
+|   3952: 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01   ................
+|   3968: 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01   ................
+|   3984: 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02   ................
+|   4000: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+|   4016: 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01   ................
+|   4032: 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01   ................
+|   4048: 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01   ................
+|   4064: 02 00 01 01 01 02 00 01 01 01 02 00 01 01 02 02   ................
+|   4080: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 02 0f f5 00 0f fb 0f f5 00 00 00 00   ................
+|   4080: 00 00 00 00 00 05 04 08 09 01 02 04 04 08 09 09   ................
+| page 7 offset 24576
+|      0: 0d 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 0d 05 02 23 61 75 74 6f   ...........#auto
+|   4032: 6d 65 71 97 65 3d 35 0d 04 02 23 6d 65 72 67 65   meq.e=5...#merge
+|   4048: 3d 31 30 30 2c 38 11 03 02 2b 69 6e 74 65 67 72   =100,8...+integr
+|   4064: 69 74 79 00 00 00 00 00 00 00 00 00 00 00 00 00   ity.............
+| end crash-670b15f2955a36.db
+}]} {}
+
+do_catchsql_test 23.1 {
+  PRAGMA writable_schema = 1;
+  SELECT 'FyzLy'FROM t1 WHERE t1 MATCH 'j';
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 24.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 28672 pagesize 4096 filename crash-369d042958c29b.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 03 10 00 00 00 00   .....@  ........
+|     96: 00 00 00 00 0d 0e b1 00 06 0d a4 00 0f 8d 0f 21   ...............!
+|    112: 0e b9 0d c8 0e 7e 0d a4 00 00 00 00 00 00 00 00   .....~..........
+|   3488: 00 00 00 00 22 07 06 17 11 11 01 31 74 61 62 6c   ...........1tabl
+|   3504: 65 74 32 74 32 07 43 52 45 41 54 45 20 54 41 42   et2t2.CREATE TAB
+|   3520: 4c 45 20 74 32 28 78 29 81 33 05 07 17 1f 1f 01   LE t2(x).3......
+|   3536: 82 35 74 61 62 6c 65 74 31 5f 73 65 67 64 69 72   .5tablet1_segdir
+|   3552: 74 31 5f 73 65 67 64 69 72 05 43 52 45 41 54 45   t1_segdir.CREATE
+|   3568: 20 54 41 42 4c 45 20 27 74 31 5f 73 65 67 64 69    TABLE 't1_segdi
+|   3584: 72 27 28 6c 65 76 65 6c 20 49 4e 54 45 47 45 52   r'(level INTEGER
+|   3600: 2c 69 64 78 20 49 4e 54 45 47 45 52 2c 73 74 61   ,idx INTEGER,sta
+|   3616: 72 74 5f 62 6c 6f 63 6b 20 49 4e 54 45 47 45 52   rt_block INTEGER
+|   3632: 2c 6c 65 61 76 65 73 5f 65 6e 64 5f 62 6c 6f 63   ,leaves_end_bloc
+|   3648: 6b 20 49 4e 54 45 47 45 52 2c 65 6e 64 5f 62 6c   k INTEGER,end_bl
+|   3664: 6f 63 6b 20 49 4e 54 45 47 45 52 2c 72 6f 6f 74   ock INTEGER,root
+|   3680: 20 42 4c 4f 42 2c 50 52 49 4d 41 52 59 20 4b 45    BLOB,PRIMARY KE
+|   3696: 59 28 6c 65 76 65 6c 2c 20 69 64 78 29 29 31 06   Y(level, idx))1.
+|   3712: 06 17 45 1f 01 00 69 6e 64 65 78 73 71 6c 69 74   ..E...indexsqlit
+|   3728: 65 5f 61 75 74 6f 69 6e 64 65 78 5f 74 31 5f 73   e_autoindex_t1_s
+|   3744: 65 67 64 69 72 5f 31 74 31 5f 73 65 67 64 69 72   egdir_1t1_segdir
+|   3760: 06 0f c7 00 08 00 10 00 00 66 04 07 17 23 23 01   .........f...##.
+|   3776: 81 13 74 61 62 6c 65 74 31 5f 73 65 67 6d 65 6e   ..tablet1_segmen
+|   3792: 64 73 74 31 5f 73 65 67 6d 65 6e 74 73 04 43 52   dst1_segments.CR
+|   3808: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 73   EATE TABLE 't1_s
+|   3824: 65 67 6d 65 6e 74 73 27 28 62 6c 6f 63 6b 69 64   egments'(blockid
+|   3840: 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59    INTEGER PRIMARY
+|   3856: 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42    KEY, block BLOB
+|   3872: 29 6a 03 07 17 21 21 01 81 1f 74 61 62 6c 65 74   )j...!!...tablet
+|   3888: 31 4f 63 6f 6e 74 65 6e 74 74 31 5f 63 6f 6e 74   1Ocontentt1_cont
+|   3904: 65 6e 74 03 43 52 45 41 54 45 20 54 41 42 4c 45   ent.CREATE TABLE
+|   3920: 20 27 74 31 5f 63 6f 6e 74 65 6e 74 27 28 64 6f    't1_content'(do
+|   3936: 63 69 64 20 49 4e 54 45 47 45 52 20 50 52 39 4d   cid INTEGER PR9M
+|   3952: 41 52 59 20 4b 45 59 2c 20 27 63 30 61 27 2c 20   ARY KEY, 'c0a', 
+|   3968: 27 63 31 62 27 2c 20 27 63 32 63 27 29 38 02 06   'c1b', 'c2c')8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 33   LE t1 USING fts3
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 00 00 00 00 00 00   (a,b,c).........
+| page 3 offset 8192
+|      0: 0d 00 00 00 26 0b 48 0e 0f d8 0f af 0f 86 0f 74   ....&.H........t
+|     16: 0f 61 0f 4e 0f 2f 0f 0f 0e ef 0e d7 0e be 0e a5   .a.N./..........
+|     32: 0e 8d 0e 74 0e 5b 0e 40 0e 24 0e 08 0d ef 0d d5   ...t.[.@.$......
+|     48: 0d bb 0d a0 0e 94 03 28 0d 4f 0d 35 0d 1b 05 0b   .......(.O.5....
+|     64: 0c da 0c b9 0c 99 0c 78 0c 57 0c 3e 0c 24 0c 0a   .......x.W.>.$..
+|   2880: 00 00 00 00 00 00 00 00 81 3f 25 06 00 72 7f 00   .........?%..r..
+|   2896: 00 43 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e   .COMPILER=gcc-5.
+|   2912: 34 2e 30 20 32 30 31 36 30 36 30 39 20 44 55 42   4.0 20160609 DUB
+|   2928: 55 47 20 45 4e 41 e4 7c 45 20 44 42 53 54 41 54   UG ENA.|E DBSTAT
+|   2944: e4 d1 54 41 42 20 45 4e 41 42 4c 45 20 46 54 53   ..TAB ENABLE FTS
+|   2960: 34 20 45 4e 41 42 4c 45 20 46 54 53 35 20 45 4e   4 ENABLE FTS5 EN
+|   2976: 41 42 4c 45 20 47 45 4f 50 4f 4c 59 20 45 4e 41   ABLE GEOPOLY ENA
+|   2992: 42 4c 45 20 4a 53 4f 4e 31 20 45 4e 41 42 4c 45   BLE JSON1 ENABLE
+|   3008: 20 4d 45 4d 53 59 53 35 20 45 4e 41 42 4c 45 20    MEMSYS5 ENABLE 
+|   3024: 42 54 52 45 45 20 4d 41 58 20 4d 45 4d 4f 52 59   BTREE MAX MEMORY
+|   3040: 3d 35 30 30 30 30 30 30 30 20 4f 4c 49 54 20 4c   =50000000 OLIT L
+|   3056: 4f 41 43 20 45 58 54 45 4e 53 49 4f 4e 21 54 48   OAC EXTENSION!TH
+|   3072: 52 45 41 44 53 41 46 45 3d 30 18 24 05 00 25 0f   READSAFE=0.$..%.
+|   3088: 19 54 48 52 45 41 44 53 41 46 45 3d 30 58 42 49   .THREADSAFE=0XBI
+|   3104: 4e 41 52 59 18 23 05 00 25 0f 19 54 48 52 45 41   NARY.#..%..THREA
+|   3120: 44 53 41 4b 75 3d 30 58 4d 4f 43 41 53 45 17 22   DSAKu=0XMOCASE..
+|   3136: 05 00 25 0f 17 54 48 52 45 41 44 53 41 46 46 3d   ..%..THREADSAFF=
+|   3152: 30 58 52 54 52 49 4d 1f 21 05 00 33 0f 19 4f 4d   0XRTRIM.!..3..OM
+|   3168: 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 52 49 4f   IT LOAD EXTENRIO
+|   3184: 4e 58 42 49 4e 41 52 59 1f 20 05 00 33 0f 19 4f   NXBINARY. ..3..O
+|   3200: 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49   MIT LOAD EXTENSI
+|   3216: 4f 4e 58 4e 4f 43 41 53 45 1e 1f 05 00 33 0f 17   ONXNOCASE....3..
+|   3232: 4f 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53   OMIT LOAD EXTENS
+|   3248: 49 4f 4e 58 52 54 52 49 4d 1f 1e 05 00 33 0f 19   IONXRTRIM....3..
+|   3264: 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30 30   MAX MEMORY=50000
+|   3280: 30 30 30 58 42 49 4e 41 52 59 1f 1d 05 00 33 0f   000XBINARY....3.
+|   3296: 19 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30   .MAX MEMORY=5000
+|   3312: 30 30 30 30 58 4e 4f 43 41 53 45 1e 1c 05 00 33   0000XNOCASE....3
+|   3328: 0f 17 4d 42 b8 20 4d 45 4d 4f 52 59 3d 35 30 30   ..MB. MEMORY=500
+|   3344: 30 30 30 30 30 58 52 54 52 49 4d 18 1b 05 00 25   00000XRTRIM....%
+|   3360: 0f 19 45 4e 41 42 4c 45 20 52 54 52 45 45 58 42   ..ENABLE RTREEXB
+|   3376: 49 4e 41 52 59 18 1a 05 0d a5 0f 19 45 4e 41 42   INARY.......ENAB
+|   3392: 4c 45 20 52 54 52 45 45 58 4e 4f 43 41 53 45 17   LE RTREEXNOCASE.
+|   3408: 19 1c 00 25 0f 17 45 4e 41 42 4c 45 20 52 54 52   ...%..ENABLE RTR
+|   3424: 45 45 58 52 54 52 49 4d 1a 18 05 00 29 0f 19 45   EEXRTRIM....)..E
+|   3440: 4e 41 42 4c 45 20 4d 45 4d 53 59 53 35 58 42 49   NABLE MEMSYS5XBI
+|   3456: 4e 41 52 59 1a 17 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3472: 45 20 4d 45 4d 53 59 53 35 58 4e 4f 43 41 53 45   E MEMSYS5XNOCASE
+|   3488: 19 16 05 00 29 0f 17 45 4e 41 42 4c 45 20 4d 45   ....)..ENABLE ME
+|   3504: 4d 53 59 53 35 58 52 54 52 49 4d 18 14 05 01 25   MSYS5XRTRIM....%
+|   3520: 0f 19 45 4e 12 42 4c 45 20 4a 53 4f 4e 31 58 42   ..EN.BLE JSON1XB
+|   3536: 49 4e 41 52 59 18 14 05 00 25 09 d9 45 4e 41 42   INARY....%..ENAB
+|   3552: 4c 45 20 4a 53 4f 3e 31 58 4e 4f 43 41 53 45 17   LE JSO>1XNOCASE.
+|   3568: 13 05 00 25 0f 17 45 4e 40 42 4c 45 20 4a 53 4f   ...%..EN@BLE JSO
+|   3584: 4e 31 58 52 54 52 49 4d 1a 12 05 82 29 0f 19 45   N1XRTRIM....)..E
+|   3600: 4e 41 42 4c 45 20 47 45 4f 50 4f 4c 59 58 42 49   NABLE GEOPOLYXBI
+|   3616: 4e 41 52 59 1a 11 05 c9 29 e8 19 46 4e 41 42 4c   NARY....)..FNABL
+|   3632: 48 c0 47 45 4f 50 4f 4c 59 58 4e 74 43 41 53 45   H.GEOPOLYXNtCASE
+|   3648: 19 10 05 00 29 0f 17 45 4e 41 42 4c 45 20 47 45   ....)..ENABLE GE
+|   3664: 4f 50 4f 4c 59 58 52 54 52 49 4d 17 0f 05 00 23   OPOLYXRTRIM....#
+|   3680: 0f 19 45 4e 41 42 4c 45 30 46 54 53 35 58 42 49   ..ENABLE0FTS5XBI
+|   3696: 4e 41 52 59 17 0e 05 00 23 0f 19 45 4e 41 42 4c   NARY....#..ENABL
+|   3712: 45 20 46 54 53 35 58 4e 4f 43 41 53 45 16 0e 05   E FTS5XNOCASE...
+|   3728: 00 23 0f 17 45 4e 41 42 4c 45 20 46 54 53 35 58   .#..ENABLE FTS5X
+|   3744: 52 54 52 49 4d 17 0c 05 00 23 0f 19 45 4e 41 42   RTRIM....#..ENAB
+|   3760: 4c 45 20 46 54 53 34 58 42 49 4e 41 52 59 17 0b   LE FTS4XBINARY..
+|   3776: 05 00 23 0f 19 45 4e 41 42 4c 45 20 46 54 53 34   ..#..ENABLE FTS4
+|   3792: 58 4e 4f 43 41 53 45 16 0a 05 00 23 0f 17 45 4e   XNOCASE....#..EN
+|   3808: 41 42 4c 45 20 46 54 53 34 58 52 54 52 49 4d 1e   ABLE FTS4XRTRIM.
+|   3824: 09 05 00 31 0f 19 45 4e 42 42 4c 45 20 44 42 53   ...1..ENBBLE DBS
+|   3840: 54 41 54 20 56 54 41 42 58 42 49 4e 41 52 59 1e   TAT VTABXBINARY.
+|   3856: 08 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3872: 54 41 54 20 56 54 41 42 58 4e 4f 43 41 53 45 1d   TAT VTABXNOCASE.
+|   3888: 07 05 00 31 0f 17 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3904: 54 41 54 20 56 54 41 42 58 52 54 52 4a 4d 11 06   TAT VTABXRTRJM..
+|   3920: 05 f0 17 0f 19 44 45 42 55 47 58 42 49 4e 41 52   .....DEBUGXBINAR
+|   3936: 59 11 05 05 00 17 0e 19 44 45 42 55 47 58 4e 4f   Y.......DEBUGXNO
+|   3952: 43 41 53 45 10 04 05 00 17 0f 16 44 45 42 55 47   CASE.......DEBUG
+|   3968: 58 52 54 52 49 4d 27 03 05 00 43 0f 19 43 4f 4d   XRTRIM'...C..COM
+|   3984: 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e 30 20   PILER=gcc-5.4.0 
+|   4000: 32 30 31 36 30 36 30 39 58 42 49 4e 41 52 59 27   20160609XBINARY'
+|   4016: 02 05 00 43 0f 19 43 4f 4d 50 49 4c 45 52 3d 67   ...C..COMPILER=g
+|   4032: 63 63 2d 35 2e 34 2e 30 20 32 30 31 36 30 36 30   cc-5.4.0 2016060
+|   4048: 39 58 4e 4f 43 41 53 45 26 01 06 00 43 0f 17 43   9XNOCASE&...C..C
+|   4064: 4f 4d 50 49 4b 45 52 3d 67 63 63 2d 35 2e 34 2e   OMPIKER=gcc-5.4.
+|   4080: 30 20 32 30 31 36 30 36 40 39 58 29 54 52 49 4d   0 201606@9X)TRIM
+| page 4 offset 12288
+|      0: 0d 00 10 00 00 10 00 00 00 00 00 00 00 01 00 00   ................
+| page 5 offset 16384
+|      0: 0d 00 00 00 02 0b a0 00 0c ad 0b a0 00 00 00 00   ................
+|   2976: 82 0a 02 08 08 09 08 08 17 84 06 30 20 32 35 33   ...........0 253
+|   2992: 00 01 30 04 25 06 1b 00 00 08 32 30 31 36 30 36   ..0.%.....201606
+|   3008: 30 39 03 25 07 00 00 01 34 03 25 05 00 00 01 35   09.%....4.%....5
+|   3024: 03 25 04 00 01 07 30 30 30 30 30 30 30 03 25 1a   .%....0000000.%.
+|   3040: 00 00 08 63 6f 6d 70 69 6c 65 72 03 25 02 00 00   ...compiler.%...
+|   3056: 06 64 62 73 74 61 74 03 25 0a 00 01 04 65 62 75   .dbstat.%....ebu
+|   3072: 67 03 25 08 00 00 06 65 6e 61 62 6c 65 09 25 09   g.%....enable.%.
+|   3088: 05 04 04 04 04 04 00 01 08 78 74 65 6e 73 69 6f   .........xtensio
+|   3104: 6e 03 25 1d 00 00 04 66 74 73 34 03 25 0d 00 03   n.%....fts4.%...
+|   3120: 01 35 03 25 0f 00 00 03 67 63 63 03 25 03 00 01   .5.%....gcc.%...
+|   3136: 06 65 6f 70 6f 6c 79 03 25 11 00 00 05 6a 73 6f   .eopoly.%....jso
+|   3152: 6e 31 03 25 13 00 00 04 6c 6f 61 64 03 25 1c 00   n1.%....load.%..
+|   3168: 00 03 6d 61 78 03 25 18 00 01 05 65 6e 6f 72 79   ..max.%....enory
+|   3184: 03 25 19 00 03 04 ce 79 73 4d 03 25 15 00 00 04   .%.....ysM.%....
+|   3200: 6f 6d 69 74 03 25 1b 00 00 05 72 74 72 65 65 03   omit.%....rtree.
+|   3216: 25 17 00 00 0a 74 68 72 65 61 64 73 61 66 65 03   %....threadsafe.
+|   3232: 25 0e 00 00 04 76 74 61 62 03 25 0b 00 86 50 01   %....vtab.%...P.
+|   3248: 08 08 08 08 08 17 8d 12 30 20 38 33 35 00 01 30   ........0 835..0
+|   3264: 12 01 06 00 01 06 00 01 06 00 1f 03 00 01 03 09   ................
+|   3280: 51 03 00 00 08 32 30 31 36 30 36 30 39 09 01 07   Q....20160609...
+|   3296: 00 01 07 00 01 07 00 00 01 34 09 01 05 00 01 05   .........4......
+|   3312: 00 01 05 00 00 01 35 09 01 04 00 01 04 00 01 04   ......5.........
+|   3328: 00 01 07 30 30 30 30 30 30 30 09 1c 04 00 01 04   ...0000000......
+|   3344: 00 01 04 00 00 06 62 69 6e 61 72 79 3c 03 01 02   ......binary<...
+|   3360: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3376: 00 03 01 02 02 00 02 f1 02 02 00 03 01 02 02 00   ................
+|   3392: 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03   ................
+|   3408: 01 02 02 00 03 01 02 02 00 00 08 63 6f 6d 70 69   ...........compi
+|   3424: 6c 65 72 09 01 02 00 01 02 00 01 02 00 00 06 67   ler............g
+|   3440: d2 73 74 61 74 09 07 03 00 01 03 00 01 03 00 01   .stat...........
+|   3456: 04 65 62 75 67 09 04 02 00 01 02 00 01 02 00 00   .ebug...........
+|   3472: 06 65 6e 6f 82 6c 65 3f 07 02 00 01 02 00 01 02   .eno.le?........
+|   3488: b0 01 02 00 01 02 00 11 02 00 01 02 00 01 02 00   ................
+|   3504: 01 02 00 01 02 00 01 02 00 01 a6 00 01 02 00 01   ................
+|   3520: 02 05 51 02 00 01 02 00 01 02 00 01 02 00 01 02   ..Q.............
+|   3536: 00 01 02 00 01 02 00 01 08 78 74 65 6e 73 69 6f   .........xtensio
+|   3552: 6e 09 1f 04 00 01 04 00 00 04 00 00 04 66 74 73   n............fts
+|   3568: 34 09 0a 03 00 01 03 00 01 03 00 03 01 35 09 0d   4............5..
+|   3584: 03 00 01 03 00 01 03 00 00 03 67 63 63 09 01 03   ..........gcc...
+|   3600: 00 01 03 00 01 03 00 01 06 65 6f 70 73 6c 79 09   .........eopsly.
+|   3616: 10 03 00 01 03 00 01 03 00 00 05 6a 73 6f 6e 31   ...........json1
+|   3632: 09 13 03 00 01 03 00 01 03 00 00 04 6c 6f 61 64   ............load
+|   3648: 09 1f 03 00 01 03 00 01 03 00 00 03 6d 61 78 09   ............max.
+|   3664: 1c 02 00 01 02 00 01 02 00 01 05 65 6d 6f 72 79   ...........emory
+|   3680: 09 1c 03 00 01 03 00 01 03 00 03 04 73 79 73 35   ............sys5
+|   3696: 09 16 03 00 01 03 00 01 03 00 00 06 6e 6f 63 61   ............noca
+|   3712: 73 65 3c 02 01 02 02 00 03 01 12 02 00 03 01 02   se<.............
+|   3728: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3744: 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00   ................
+|   3760: 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00 00   ................
+|   3776: 04 6f 6d 69 74 09 1f 02 00 01 02 00 01 02 00 00   .omit...........
+|   3792: 05 72 74 72 65 65 09 19 03 00 01 03 00 01 03 00   .rtree..........
+|   3808: 03 02 69 6d 3c 01 01 02 02 00 03 01 02 02 00 03   ..im<...........
+|   3824: 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01   ................
+|   3840: 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02   ................
+|   3856: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3872: 00 00 0a 74 68 72 65 61 64 73 61 66 65 09 22 02   ...threadsafe...
+|   3888: 00 01 02 00 01 02 00 00 04 76 74 61 62 09 07 04   .........vtab...
+|   3904: 00 01 04 00 01 03 ff ff 01 78 b4 01 01 01 01 02   .........x......
+|   3920: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+|   3936: 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01   ................
+|   3952: 01 01 02 00 01 01 01 07 30 01 01 01 02 00 01 01   ........0.......
+|   3968: 01 02 00 11 01 01 02 00 01 01 01 02 00 11 01 01   ................
+|   3984: 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02   ................
+|   4000: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+|   4016: 01 01 01 01 ff 01 01 01 02 00 01 01 01 02 00 01   ................
+|   4032: 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01   ................
+|   4048: 01 02 00 01 01 09 c2 00 01 01 01 02 00 01 01 01   ................
+|   4064: 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02   ................
+|   4080: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 02 0f f5 00 0f fb 0f f5 00 00 00 00   ................
+|   4080: 00 00 00 00 00 05 04 08 09 01 02 04 04 08 08 09   ................
+| page 7 offset 24576
+|      0: 0d 00 00 00 05 0f b8 00 0e f4 0f e9 10 d6 0f c7   ................
+|   4016: 00 00 00 00 00 00 00 00 0d 05 02 23 61 75 74 6f   ...........#auto
+|   4032: 6d 65 72 67 65 3d 35 0d 04 02 23 6d 65 72 67 65   merge=5...#merge
+|   4048: 3d 31 00 00 00 00 00 00 00 00 00 00 00 00 00 00   =1..............
+| end crash-369d042958c29b.db
+}]} {}
+
+do_catchsql_test 24.1 {
+  PRAGMA writable_schema = 1;
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT '4hE'+x FROM c WHERE x<72)
+    INSERT INTO t1(a) SELECT randomblob(2829) FROM c;
+} {1 {database disk image is malformed}}
+
+do_catchsql_test 24.2 {
+  UPDATE t1 SET b=quote((true) ) WHERE t1 MATCH 'h';
+} {0 {}}
+
+do_catchsql_test 24.3 {
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT 3+x FROM c WHERE x<72)
+    INSERT INTO t1(a) SELECT randomblob(2829) FROM c;
+} {1 {database disk image is malformed}}
+
+do_catchsql_test 24.4 {
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT null<<x FROM c WHERE x<72)
+    INSERT INTO t1(a) SELECT randomblob(2829) FROM c;
+} {0 {}}
+
+do_catchsql_test 24.5 {
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT 3+x FROM c WHERE x<72)
+    INSERT INTO t1(a) SELECT randomblob(2829) FROM c;
+} {1 {database disk image is malformed}}
+
+do_catchsql_test 24.7 {
+  INSERT INTO t1(t1) SELECT x FROM t2;
+} {0 {}}
+
+#-------------------------------------------------------------------------
+#-------------------------------------------------------------------------
+reset_db
+do_test 25.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 28672 pagesize 4096 filename crash-dde9e76ed8ab2d.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 03 10 00 00 00 00   .....@  ........
+|     96: 00 00 00 00 0d 0e b1 00 06 0d a4 00 0f 8d 0f 21   ...............!
+|    112: 0e b9 0d c8 0e 7e 0d a4 00 00 00 00 00 00 00 00   .....~..........
+|   3488: 00 00 00 00 22 07 06 17 11 11 01 31 74 61 62 6c   ...........1tabl
+|   3504: 65 74 32 74 32 07 43 52 45 41 54 45 20 54 41 42   et2t2.CREATE TAB
+|   3520: 4c 45 20 74 32 28 78 29 81 33 05 07 17 1f 1f 01   LE t2(x).3......
+|   3536: 82 35 74 61 62 6c 65 74 31 5f 73 65 67 64 69 72   .5tablet1_segdir
+|   3552: 74 31 5f 73 65 67 64 69 72 05 43 52 45 41 54 45   t1_segdir.CREATE
+|   3568: 20 54 41 42 4c 45 20 27 74 31 5f 73 65 67 64 69    TABLE 't1_segdi
+|   3584: 72 27 28 6c 65 76 65 6c 20 49 4e 54 45 47 45 52   r'(level INTEGER
+|   3600: 2c 69 64 78 20 49 4e 54 45 47 45 52 2c 73 74 61   ,idx INTEGER,sta
+|   3616: 72 74 5f 62 6c 6f 63 6b 20 49 4e 54 45 47 45 52   rt_block INTEGER
+|   3632: 2c 6c 65 61 76 65 73 5f 65 6e 64 5f 62 6c 6f 63   ,leaves_end_bloc
+|   3648: 6b 20 49 4e 54 45 47 45 52 2c 65 6e 64 5f 62 6c   k INTEGER,end_bl
+|   3664: 6f 63 6b 20 49 4e 54 45 47 45 52 2c 72 6f 6f 74   ock INTEGER,root
+|   3680: 20 42 4c 4f 42 2c 50 52 49 4d 41 52 59 20 4b 45    BLOB,PRIMARY KE
+|   3696: 59 28 6c 65 76 65 6c 2c 20 69 64 78 29 29 31 06   Y(level, idx))1.
+|   3712: 06 17 45 1f 01 00 69 6e 64 65 78 73 71 6c 69 74   ..E...indexsqlit
+|   3728: 65 5f 61 75 74 6f 69 6e 64 65 78 5f 74 31 5f 73   e_autoindex_t1_s
+|   3744: 65 67 64 69 72 5f 31 74 31 5f 73 65 67 64 69 72   egdir_1t1_segdir
+|   3760: 06 0f c7 00 08 00 00 00 00 66 04 07 17 23 23 01   .........f...##.
+|   3776: 81 13 74 61 62 6c 65 74 31 5f 73 65 67 6d 65 6e   ..tablet1_segmen
+|   3792: 64 73 74 31 5f 73 65 67 6d 65 6e 74 73 04 43 52   dst1_segments.CR
+|   3808: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 73   EATE TABLE 't1_s
+|   3824: 65 67 6d 65 6e 74 73 27 28 62 6c 6f 63 6b 69 64   egments'(blockid
+|   3840: 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59    INTEGER PRIMARY
+|   3856: 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42    KEY, block BLOB
+|   3872: 29 6a 03 07 17 21 21 01 81 1f 74 61 62 6c 65 74   )j...!!...tablet
+|   3888: 31 5f 63 6f 6e 74 65 6e 74 74 31 5f 63 6f 6e 74   1_contentt1_cont
+|   3904: 65 6e 74 03 43 52 45 41 54 45 20 54 41 42 4c 45   ent.CREATE TABLE
+|   3920: 20 27 74 31 5f 63 6f 6e 74 65 6e 74 27 28 64 6f    't1_content'(do
+|   3936: 63 69 64 20 49 4e 54 45 47 45 52 20 50 52 39 4d   cid INTEGER PR9M
+|   3952: 41 52 59 20 4b 45 59 2c 20 27 63 30 61 27 2c 20   ARY KEY, 'c0a', 
+|   3968: 27 63 31 62 27 2c 20 27 63 32 63 27 29 38 02 06   'c1b', 'c2c')8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 33   LE t1 USING fts3
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 00 00 00 00 00 00   (a,b,c).........
+| page 3 offset 8192
+|      0: 0d 00 00 00 26 0b 48 0e 0f d8 0f af 0f 86 0f 74   ....&.H........t
+|     16: 0f 61 0f 4e 0f 2f 0f 0f 0e ef 0e d7 0e be 0e a5   .a.N./..........
+|     32: 0e 8d 0e 74 0e 5b 0e 40 0e 24 0e 08 0d ef 0d d5   ...t.[.@.$......
+|     48: 0d bb 0d a0 0e 94 03 28 0d 4f 0d 35 0d 1b 05 0b   .......(.O.5....
+|     64: 0c da 0c b9 0c 99 0c 78 0c 57 0c 3e 0c 24 0c 0a   .......x.W.>.$..
+|   2880: 00 00 00 00 00 00 00 00 81 3f 25 06 00 72 7f 00   .........?%..r..
+|   2896: 00 43 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e   .COMPILER=gcc-5.
+|   2912: 34 2e 30 20 32 30 31 36 30 36 30 39 20 44 55 42   4.0 20160609 DUB
+|   2928: 55 47 20 45 4e 41 e4 7c 45 20 44 42 53 54 41 54   UG ENA.|E DBSTAT
+|   2944: e4 46 54 41 42 20 45 4e 41 42 4c 45 20 46 54 53   .FTAB ENABLE FTS
+|   2960: 34 20 45 4e 41 42 4c 45 20 46 54 53 35 20 45 4e   4 ENABLE FTS5 EN
+|   2976: 41 42 4c 45 20 47 45 4f 50 4f 4c 59 20 45 4e 41   ABLE GEOPOLY ENA
+|   2992: 42 4c 45 20 4a 53 4f 4e 31 20 45 4e 41 42 4c 45   BLE JSON1 ENABLE
+|   3008: 20 4d 45 4d 53 59 53 35 20 45 4e 41 42 4c 45 20    MEMSYS5 ENABLE 
+|   3024: 42 54 52 45 45 20 4d 41 58 20 4d 45 4d 4f 52 59   BTREE MAX MEMORY
+|   3040: 3d 35 30 30 30 30 30 30 30 20 4f 4c 49 54 20 4c   =50000000 OLIT L
+|   3056: 4f 41 43 20 45 58 54 45 4e 53 49 4f 4e 21 54 48   OAC EXTENSION!TH
+|   3072: 52 45 41 44 53 41 46 45 3d 30 18 24 05 00 25 0f   READSAFE=0.$..%.
+|   3088: 19 54 48 52 45 41 44 53 41 46 45 3d 30 58 42 49   .THREADSAFE=0XBI
+|   3104: 4e 41 52 59 18 23 05 00 25 0f 19 54 48 52 45 41   NARY.#..%..THREA
+|   3120: 44 53 41 4b 75 3d 30 58 4d 4f 43 41 53 45 17 22   DSAKu=0XMOCASE..
+|   3136: 05 00 25 0f 17 54 48 52 45 41 44 53 41 46 46 3d   ..%..THREADSAFF=
+|   3152: 30 58 52 54 52 49 4d 1f 21 05 00 33 0f 19 4f 4d   0XRTRIM.!..3..OM
+|   3168: 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 52 49 4f   IT LOAD EXTENRIO
+|   3184: 4e 58 42 49 4e 41 52 59 1f 20 05 00 33 0f 19 4f   NXBINARY. ..3..O
+|   3200: 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49   MIT LOAD EXTENSI
+|   3216: 4f 4e 58 4e 4f 43 41 53 45 1e 1f 05 00 33 0f 17   ONXNOCASE....3..
+|   3232: 4f 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53   OMIT LOAD EXTENS
+|   3248: 49 4f 4e 58 52 54 52 49 4d 1f 1e 05 00 33 0f 19   IONXRTRIM....3..
+|   3264: 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30 30   MAX MEMORY=50000
+|   3280: 30 30 30 58 42 49 4e 41 52 59 1f 1d 05 00 33 0f   000XBINARY....3.
+|   3296: 19 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30   .MAX MEMORY=5000
+|   3312: 30 30 30 30 58 4e 4f 43 41 53 45 1e 1c 05 00 33   0000XNOCASE....3
+|   3328: 0f 17 4d 42 b8 20 4d 45 4d 4f 52 59 3d 35 30 30   ..MB. MEMORY=500
+|   3344: 30 30 30 30 30 58 52 54 52 49 4d 18 1b 05 00 25   00000XRTRIM....%
+|   3360: 0f 19 45 4e 41 42 4c 45 20 52 54 52 45 45 58 42   ..ENABLE RTREEXB
+|   3376: 49 4e 41 52 59 18 1a 05 0d a5 0f 19 45 4e 41 42   INARY.......ENAB
+|   3392: 4c 45 20 52 54 52 45 45 58 4e 4f 43 41 53 45 17   LE RTREEXNOCASE.
+|   3408: 19 1c 00 25 0f 17 45 4e 41 42 4c 45 20 52 54 52   ...%..ENABLE RTR
+|   3424: 45 45 58 52 54 52 49 4d 1a 18 05 00 29 0f 19 45   EEXRTRIM....)..E
+|   3440: 4e 41 42 4c 45 20 4d 45 4d 53 59 53 35 58 42 49   NABLE MEMSYS5XBI
+|   3456: 4e 41 52 59 1a 17 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3472: 45 20 4d 45 4d 53 59 53 35 58 4e 4f 43 41 53 45   E MEMSYS5XNOCASE
+|   3488: 19 16 05 00 29 0f 17 45 4e 41 42 4c 45 20 4d 45   ....)..ENABLE ME
+|   3504: 4d 53 59 53 35 58 52 54 52 49 4d 18 14 05 01 25   MSYS5XRTRIM....%
+|   3520: 0f 19 45 4e 12 42 4c 45 20 4a 53 4f 4e 31 58 42   ..EN.BLE JSON1XB
+|   3536: 49 4e 41 52 59 18 14 05 00 25 09 d9 45 4e 41 42   INARY....%..ENAB
+|   3552: 4c 45 20 4a 53 4f 3e 31 58 4e 4f 43 41 53 45 17   LE JSO>1XNOCASE.
+|   3568: 13 05 00 25 0f 17 45 4e 40 42 4c 45 20 4a 53 4f   ...%..EN@BLE JSO
+|   3584: 4e 31 58 52 54 52 49 4d 1a 12 05 82 29 0f 19 45   N1XRTRIM....)..E
+|   3600: 4e 41 42 4c 45 20 47 45 4f 50 4f 4c 59 58 42 49   NABLE GEOPOLYXBI
+|   3616: 4e 41 52 59 1a 11 05 c9 29 e8 19 46 4e 41 42 4c   NARY....)..FNABL
+|   3632: 48 c0 47 45 4f 50 4f 4c 59 58 4e 74 43 41 53 45   H.GEOPOLYXNtCASE
+|   3648: 19 10 05 00 29 0f 17 45 4e 41 42 4c 45 20 47 45   ....)..ENABLE GE
+|   3664: 4f 50 4f 4c 59 58 52 54 52 49 4d 17 0f 05 00 23   OPOLYXRTRIM....#
+|   3680: 0f 19 45 4e 41 42 4c 45 30 46 54 53 35 58 42 49   ..ENABLE0FTS5XBI
+|   3696: 4e 41 52 59 17 0e 05 00 23 0f 19 45 4e 41 42 4c   NARY....#..ENABL
+|   3712: 45 20 46 54 53 35 58 4e 4f 43 41 53 45 16 0e 05   E FTS5XNOCASE...
+|   3728: 00 23 0f 17 45 4e 41 42 4c 45 20 46 54 53 35 58   .#..ENABLE FTS5X
+|   3744: 52 54 52 49 4d 17 0c 05 00 23 0f 19 45 4e 41 42   RTRIM....#..ENAB
+|   3760: 4c 45 20 46 54 53 34 58 42 49 4e 41 52 59 17 0b   LE FTS4XBINARY..
+|   3776: 05 00 23 0f 19 45 4e 41 42 4c 45 20 46 54 53 34   ..#..ENABLE FTS4
+|   3792: 58 4e 4f 43 41 53 45 16 0a 05 00 23 0f 17 45 4e   XNOCASE....#..EN
+|   3808: 41 42 4c 45 20 46 54 53 34 58 52 54 52 49 4d 1e   ABLE FTS4XRTRIM.
+|   3824: 09 05 00 31 0f 19 45 4e 42 42 4c 45 20 44 42 53   ...1..ENBBLE DBS
+|   3840: 54 41 54 20 56 54 41 42 58 42 49 4e 41 52 59 1e   TAT VTABXBINARY.
+|   3856: 08 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3872: 54 41 54 20 56 54 41 42 58 4e 4f 43 41 53 45 1d   TAT VTABXNOCASE.
+|   3888: 07 05 00 31 0f 17 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3904: 54 41 54 20 56 54 41 42 58 52 54 52 4a 4d 11 06   TAT VTABXRTRJM..
+|   3920: 05 f0 17 0f 19 44 45 42 55 47 58 42 49 4e 41 52   .....DEBUGXBINAR
+|   3936: 59 11 05 05 00 17 0e 19 44 45 42 55 47 58 4e 4f   Y.......DEBUGXNO
+|   3952: 43 41 53 45 10 04 05 00 17 0f 16 44 45 42 55 47   CASE.......DEBUG
+|   3968: 58 52 54 52 49 4d 27 03 05 00 43 0f 19 43 4f 4d   XRTRIM'...C..COM
+|   3984: 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e 30 20   PILER=gcc-5.4.0 
+|   4000: 32 30 31 36 30 36 30 39 58 42 49 4e 41 52 59 27   20160609XBINARY'
+|   4016: 02 05 00 43 0f 19 43 4f 4d 50 49 4c 45 52 3d 67   ...C..COMPILER=g
+|   4032: 63 63 2d 35 2e 34 2e 30 20 32 30 31 36 30 36 30   cc-5.4.0 2016060
+|   4048: 39 58 4e 4f 43 41 53 45 26 01 06 00 43 0f 17 43   9XNOCASE&...C..C
+|   4064: 4f 4d 50 49 4b 45 52 3d 67 63 63 2d 35 2e 34 2e   OMPIKER=gcc-5.4.
+|   4080: 30 20 32 30 31 36 30 36 40 39 58 29 54 52 49 4d   0 201606@9X)TRIM
+| page 4 offset 12288
+|      0: 0d 00 10 00 00 10 00 00 00 00 00 00 00 01 00 00   ................
+| page 5 offset 16384
+|      0: 0d 00 00 00 02 0b a0 00 0c ad 0b a0 00 00 00 00   ................
+|   2976: 82 0a 02 08 08 09 08 08 17 84 06 30 20 32 35 33   ...........0 253
+|   2992: 00 01 30 04 25 06 1b 00 00 08 32 30 31 36 30 36   ..0.%.....201606
+|   3008: 30 39 03 25 07 00 00 01 34 03 25 05 00 00 01 35   09.%....4.%....5
+|   3024: 03 25 04 00 01 07 30 30 30 30 30 30 30 03 25 1a   .%....0000000.%.
+|   3040: 00 00 08 63 6f 6d 70 69 6c 65 72 03 25 02 00 00   ...compiler.%...
+|   3056: 06 64 62 73 74 61 74 03 25 0a 00 01 04 65 62 75   .dbstat.%....ebu
+|   3072: 67 03 25 08 00 00 06 65 6e 61 62 6c 65 09 25 09   g.%....enable.%.
+|   3088: 05 04 04 04 04 04 00 01 08 78 74 65 6e 73 69 6f   .........xtensio
+|   3104: 6e 03 25 1d 00 00 04 66 74 73 34 03 25 0d 00 03   n.%....fts4.%...
+|   3120: 01 35 03 25 0f 00 00 03 67 63 63 03 25 03 00 01   .5.%....gcc.%...
+|   3136: 06 65 6f 70 6f 6c 79 03 25 11 00 00 05 6a 73 6f   .eopoly.%....jso
+|   3152: 6e 31 03 25 13 00 00 04 6c 6f 61 64 03 25 1c 00   n1.%....load.%..
+|   3168: 00 03 6d 61 78 03 25 18 00 01 05 65 6e 6f 72 79   ..max.%....enory
+|   3184: 03 25 19 00 03 04 ce 79 73 4d 03 25 15 00 00 04   .%.....ysM.%....
+|   3200: 6f 6d 69 74 03 25 1b 00 00 05 72 74 72 65 65 03   omit.%....rtree.
+|   3216: 25 17 00 00 0a 74 68 72 65 61 64 73 61 66 65 03   %....threadsafe.
+|   3232: 25 0e 00 00 04 76 74 61 62 03 25 0b 00 86 50 01   %....vtab.%...P.
+|   3248: 08 08 08 08 08 17 8d 12 30 20 38 33 35 00 01 30   ........0 835..0
+|   3264: 12 01 06 00 01 06 00 01 06 00 1f 03 00 01 03 09   ................
+|   3280: 51 03 00 00 08 32 30 31 36 30 36 30 39 09 01 07   Q....20160609...
+|   3296: 00 01 07 00 01 07 00 00 01 34 09 01 05 00 01 05   .........4......
+|   3312: 00 01 05 00 00 01 35 09 01 04 00 01 04 00 01 04   ......5.........
+|   3328: 00 01 07 30 30 30 30 30 30 30 09 1c 04 00 01 04   ...0000000......
+|   3344: 00 01 04 00 00 06 62 69 6e 61 72 79 3c 03 01 02   ......binary<...
+|   3360: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3376: 00 03 01 02 02 00 02 f1 02 02 00 03 01 02 02 00   ................
+|   3392: 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03   ................
+|   3408: 01 02 02 00 03 01 02 02 00 00 08 63 6f 6d 70 69   ...........compi
+|   3424: 6c 65 72 09 01 02 00 01 02 00 01 02 00 00 06 67   ler............g
+|   3440: d2 73 74 61 74 09 07 03 00 01 03 00 01 03 00 01   .stat...........
+|   3456: 04 65 62 75 67 09 04 02 00 01 02 00 01 02 00 00   .ebug...........
+|   3472: 06 65 6e 6f 82 6c 65 3f 07 02 00 01 02 00 01 02   .eno.le?........
+|   3488: b0 01 02 00 01 02 00 11 02 00 01 02 00 01 02 00   ................
+|   3504: 01 02 00 01 02 00 01 02 00 01 a6 00 01 02 00 01   ................
+|   3520: 02 05 51 02 00 01 02 00 01 02 00 01 02 00 01 02   ..Q.............
+|   3536: 00 01 02 00 01 02 00 01 08 78 74 65 6e 73 69 6f   .........xtensio
+|   3552: 6e 09 1f 04 00 01 04 00 00 04 00 00 04 66 74 73   n............fts
+|   3568: 34 09 0a 03 00 01 03 00 01 03 00 03 01 35 09 0d   4............5..
+|   3584: 03 00 01 03 00 01 03 00 00 03 67 63 63 09 01 03   ..........gcc...
+|   3600: 00 01 03 00 01 03 00 01 06 65 6f 70 73 6c 79 09   .........eopsly.
+|   3616: 10 03 00 01 03 00 01 03 00 00 05 6a 73 6f 6e 31   ...........json1
+|   3632: 09 13 03 00 01 03 00 01 03 00 00 04 6c 6f 61 64   ............load
+|   3648: 09 1f 03 00 01 03 00 01 03 00 00 03 6d 61 78 09   ............max.
+|   3664: 1c 02 00 01 02 00 01 02 00 01 05 65 6d 6f 72 79   ...........emory
+|   3680: 09 1c 03 00 01 03 00 01 03 00 03 04 73 79 73 35   ............sys5
+|   3696: 09 16 03 00 01 03 00 01 03 00 00 06 6e 6f 63 61   ............noca
+|   3712: 73 65 3c 02 01 02 02 00 03 01 12 02 00 03 01 02   se<.............
+|   3728: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3744: 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00   ................
+|   3760: 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00 00   ................
+|   3776: 0e 9f 6d 69 74 09 1f 02 00 01 02 00 01 02 00 00   ..mit...........
+|   3792: 05 72 74 72 65 65 09 19 03 00 01 03 00 01 03 00   .rtree..........
+|   3808: 03 02 69 6d 3c 01 01 02 02 00 03 01 02 02 00 03   ..im<...........
+|   3824: 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01   ................
+|   3840: 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02   ................
+|   3856: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3872: 00 00 0a 74 68 72 65 61 64 73 61 66 65 09 22 02   ...threadsafe...
+|   3888: 00 01 02 00 01 02 00 00 04 76 74 61 62 09 07 04   .........vtab...
+|   3904: 00 01 04 00 01 04 00 00 01 78 b4 01 01 01 01 02   .........x......
+|   3920: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+|   3936: 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01   ................
+|   3952: 01 01 02 00 01 01 01 07 30 01 01 01 02 00 01 01   ........0.......
+|   3968: 01 02 00 11 01 01 02 00 01 01 01 02 00 11 01 01   ................
+|   3984: 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02   ................
+|   4000: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+|   4016: 01 01 01 01 ff 01 01 01 02 00 01 01 01 02 00 01   ................
+|   4032: 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01   ................
+|   4048: 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01   ................
+|   4064: 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02   ................
+|   4080: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 02 0f f5 00 0f fb 0f f5 00 00 00 00   ................
+|   4080: 00 00 00 00 00 05 04 08 09 01 02 04 04 08 08 09   ................
+| page 7 offset 24576
+|      0: 0d 00 00 00 05 0f b8 00 0e f4 0f e9 10 d6 0f c7   ................
+|   4016: 00 00 00 00 00 00 00 00 0d 05 02 23 61 75 74 6f   ...........#auto
+|   4032: 6d 65 72 67 65 3d 35 0d 04 02 23 6d 65 72 67 65   merge=5...#merge
+|   4048: 3d 31 00 00 00 00 00 00 00 00 00 00 00 00 00 00   =1..............
+| end crash-dde9e76ed8ab2d.db
+}]} {}
+
+reset_prng_state
+
+do_catchsql_test 25.1 {
+  PRAGMA writable_schema = 1;
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x%1 FROM c WHERE x<599237)
+    INSERT INTO t1( a ) SELECT randomblob(3000) FROM t2 ;
+} {0 {}}
+
+do_catchsql_test 25.2 {
+  UPDATE t1 SET b=quote((true) ) WHERE t1 MATCH 'h*';
+} {0 {}}
+
+do_catchsql_test 25.3 {
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x +x FROM c WHERE 72<x)
+    INSERT INTO t1(a) SELECT randomblob(2829) FROM c;
+} {0 {}}
+
+do_catchsql_test 25.4 {
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x%1 FROM c WHERE 599237<x)
+    INSERT INTO t1(a) SELECT randomblob(3000) FROM t2 ;
+} {0 {}}
+
+do_catchsql_test 25.5 {
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x%1 FROM c WHERE x<599237)
+    INSERT INTO t1( a ) SELECT randomblob(3000) FROM t2 ;
+} {0 {}}
+
+if {$tcl_platform(byteOrder)=="littleEndian"} {
+  # The SQLITE_CORRUPT error depends on the specific random byte
+  # sequence generated by SQLite's PRNG.  But the SQLite PRNG
+  # uses ChaCha20, which generates a different byte sequence on
+  # big-endian and little-endian platforms.  The SQLITE_CORRUPT
+  # error only comes up when the pseudo-random byte sequence is
+  # the one generated on little-endian platforms.
+  #
+  # See Forum thread:
+  # https://sqlite.org/forum/forumpost/b5f89d813babfd88
+  #
+  do_catchsql_test 25.6a {
+    INSERT INTO t1(t1) SELECT x FROM t2;
+  } {1 {database disk image is malformed}}
+  do_catchsql_test 25.6b {
+    INSERT INTO t1(t1) SELECT x FROM t2;
+  } {1 {database disk image is malformed}}
+} else {
+  do_catchsql_test 25.6a {
+    INSERT INTO t1(t1) SELECT x FROM t2;
+  } {0 {}}
+  do_catchsql_test 25.6b {
+    INSERT INTO t1(t1) SELECT x FROM t2;
+  } {0 {}}
+}
+
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 26.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 28672 pagesize 4096 filename crash-26682721375870.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 00   .....@  ........
+|     96: 00 00 00 00 0d 0e b1 00 06 0d a4 00 0f 8d 0f 21   ...............!
+|    112: 0e b9 0d c8 0e 7e 0d a4 00 00 00 00 00 00 00 00   .....~..........
+|   3488: 00 00 00 00 22 07 06 17 11 11 01 31 74 61 62 6c   ...........1tabl
+|   3504: 65 74 32 74 32 07 43 52 45 41 54 45 20 54 41 42   et2t2.CREATE TAB
+|   3520: 4c 45 20 74 32 28 78 29 81 33 05 07 17 1f 1f 01   LE t2(x).3......
+|   3536: 82 35 74 61 62 6c 65 74 31 5f 73 65 67 64 69 72   .5tablet1_segdir
+|   3552: 74 31 5f 73 65 67 64 69 72 05 43 52 45 41 54 45   t1_segdir.CREATE
+|   3568: 20 54 41 42 4c 45 20 27 74 31 5f 73 65 67 64 69    TABLE 't1_segdi
+|   3584: 72 27 28 6c 65 76 65 6c 20 49 4e 54 45 47 45 51   r'(level INTEGEQ
+|   3600: 2c 69 64 78 20 49 4e 54 45 47 45 52 2c 73 74 61   ,idx INTEGER,sta
+|   3616: 72 74 5f 62 6c 6f 63 6b 20 49 4e 54 45 47 45 52   rt_block INTEGER
+|   3632: 2c 6c 65 61 76 65 73 5f 65 6e 64 5f 62 6c 6f 63   ,leaves_end_bloc
+|   3648: 6b 20 49 4e 54 45 47 45 52 2c 65 6e 64 5f 62 6c   k INTEGER,end_bl
+|   3664: 6f 63 6b 20 49 4e 54 45 47 45 62 2c 72 6f 6f 74   ock INTEGEb,root
+|   3680: 20 42 4c 4f 42 2c 50 52 49 4d 41 52 59 20 4b 45    BLOB,PRIMARY KE
+|   3696: 59 28 6c 65 76 65 6c 2c 20 69 64 78 29 29 31 06   Y(level, idx))1.
+|   3712: 06 17 45 1f 01 00 69 6e 64 65 78 73 71 6c 69 74   ..E...indexsqlit
+|   3728: 65 5f 61 75 74 6f 69 6e 64 65 78 5f 74 31 5f 73   e_autoindex_t1_s
+|   3744: 65 67 64 69 72 5f 31 74 31 5f 73 65 67 64 69 72   egdir_1t1_segdir
+|   3760: 06 0f c7 00 08 00 00 00 00 66 04 07 17 23 23 01   .........f...##.
+|   3776: 81 13 74 61 62 6c 65 74 31 5f 73 65 66 6d 65 6e   ..tablet1_sefmen
+|   3792: 74 73 74 31 5f 73 65 67 6d 65 6e 74 73 04 43 52   tst1_segments.CR
+|   3808: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 73   EATE TABLE 't1_s
+|   3824: 65 67 6d 65 6e 74 73 27 28 62 6c 6f 63 6b 69 64   egments'(blockid
+|   3840: 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59    INTEGER PRIMARY
+|   3856: 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42    KEY, block BLOB
+|   3872: 29 6a 03 07 17 21 21 01 81 1f 74 61 62 6c 65 74   )j...!!...tablet
+|   3888: 31 5f 63 6f 6e 74 65 6e 74 74 31 5f 63 6f 6e 74   1_contentt1_cont
+|   3904: 65 6e 74 03 43 52 45 41 54 45 20 54 41 42 4c 45   ent.CREATE TABLE
+|   3920: 20 27 74 31 5f 63 6f 6e 74 65 6e 74 27 28 64 6f    't1_content'(do
+|   3936: 63 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   cid INTEGER PRIM
+|   3952: 41 52 59 20 4b 45 59 2c 20 27 63 30 61 27 2c 20   ARY KEY, 'c0a', 
+|   3968: 27 63 31 62 27 2c 20 27 63 32 63 27 29 38 02 06   'c1b', 'c2c')8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 33   LE t1 USING fts3
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 00 00 00 00 00 00   (a,b,c).........
+| page 3 offset 8192
+|      0: 0d 00 00 00 25 0b 48 00 0f d8 0f af 0f 86 0f 74   ....%.H........t
+|     16: 0f 61 0f 4e 0f 2f 0f 0f 0e ef 0e d7 0e be 0e a5   .a.N./..........
+|     32: 0e 8d 0e 74 0e 5b 0e 40 0e 24 0e 08 0d ef 00 00   ...t.[.@.$......
+|   2880: 00 00 00 00 00 00 00 00 81 3f 25 06 00 82 7f 00   .........?%.....
+|   2896: 00 43 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e   .COMPILER=gcc-5.
+|   2912: 34 23 00 20 32 2f 31 36 30 36 30 39 20 44 45 42   4#. 2/160609 DEB
+|   2928: 55 47 20 45 4e 41 42 4c 45 20 44 42 53 54 41 54   UG ENABLE DBSTAT
+|   2944: 20 56 54 41 42 20 45 4e 41 42 4c 45 20 46 54 53    VTAB ENABLE FTS
+|   2960: 34 20 45 4e 41 42 4c 45 20 46 54 53 35 20 45 4e   4 ENABLE FTS5 EN
+|   2976: 41 42 4c 45 20 47 45 4f 50 4f 4c 59 20 45 4e 41   ABLE GEOPOLY ENA
+|   2992: 42 4c 45 20 4a 53 4f 4e 31 20 45 4e 41 42 4c 45   BLE JSON1 ENABLE
+|   3008: 20 4d 45 4d 53 59 53 35 20 45 4e 41 42 4c 45 20    MEMSYS5 ENABLE 
+|   3024: 52 54 52 45 45 20 4d 41 58 20 4d 45 4d 4f 52 59   RTREE MAX MEMORY
+|   3040: 3d 35 30 30 30 30 30 30 30 20 4f 4d 49 54 20 4c   =50000000 OMIT L
+|   3056: 4f 41 44 20 45 58 54 45 4e 53 59 4f 4e 20 54 48   OAD EXTENSYON TH
+|   3072: 52 45 41 44 53 41 46 45 3d 30 18 24 05 00 25 0f   READSAFE=0.$..%.
+|   3088: 19 54 48 52 45 41 44 53 41 46 45 3d 30 58 42 49   .THREADSAFE=0XBI
+|   3104: 4e 41 52 59 18 23 05 00 25 0f 19 54 48 52 45 41   NARY.#..%..THREA
+|   3120: 44 53 41 46 45 3d 30 58 4e 4f 43 41 53 45 17 22   DSAFE=0XNOCASE..
+|   3136: 05 00 25 0f 17 54 38 52 45 41 44 53 41 46 45 3d   ..%..T8READSAFE=
+|   3152: 30 58 52 54 52 49 4d 1f 21 05 00 33 0f 19 4f 4d   0XRTRIM.!..3..OM
+|   3168: 49 54 20 4c 4f 41 44 20 45 58 54 45 fc 53 49 4f   IT LOAD EXTE.SIO
+|   3184: 4e 68 42 49 4e 4a c2 59 1f 20 05 00 33 0f 19 4f   NhBINJ.Y. ..3..O
+|   3200: 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49   MIT LOAD EXTENSI
+|   3216: 4f 4e 58 4e 4f 43 41 53 45 1e 1f 05 00 33 0f 17   ONXNOCASE....3..
+|   3232: 4f 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53   OMIT LOAD EXTENS
+|   3248: 49 4f 4e 58 52 54 52 49 4d 1f 1e 05 00 33 0f 19   IONXRTRIM....3..
+|   3264: 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 2f 30 30   MAX MEMORY=50/00
+|   3280: 30 30 30 58 42 49 4e 41 52 59 1f 1d 05 00 33 0f   000XBINARY....3.
+|   3296: 19 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30   .MAX MEMORY=5000
+|   3312: 30 30 30 30 48 4e 4f 43 41 53 45 1e 1c 05 00 33   0000HNOCASE....3
+|   3328: 0f 17 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30   ..MAX MEMORY=500
+|   3344: 30 30 30 30 30 58 52 54 52 49 4d 18 1b 05 00 25   00000XRTRIM....%
+|   3360: 0f 19 45 4e 41 42 4c 45 20 52 54 52 45 45 58 42   ..ENABLE RTREEXB
+|   3376: 49 4e 41 52 59 18 1a 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3392: 4c 45 20 52 54 52 45 45 58 4e 4f 53 41 53 45 17   LE RTREEXNOSASE.
+|   3408: 19 05 00 25 0f 17 45 4e 41 42 4c 45 20 52 54 52   ...%..ENABLE RTR
+|   3424: 45 45 58 52 54 52 49 4d 1a 18 05 00 29 0f 19 45   EEXRTRIM....)..E
+|   3440: 4e 41 42 4c 45 20 4d 45 4d 53 59 53 35 58 42 49   NABLE MEMSYS5XBI
+|   3456: 4e 41 52 59 1a 17 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3472: 45 20 4d 45 4d 53 59 53 35 58 4e 4f 43 41 53 45   E MEMSYS5XNOCASE
+|   3488: 19 16 05 00 29 0f 17 45 4e 41 42 4c 45 20 4d 45   ....)..ENABLE ME
+|   3504: 4d 53 59 53 35 58 52 54 52 49 4d 18 15 05 00 25   MSYS5XRTRIM....%
+|   3520: 0f 19 45 4e 41 42 4c 45 20 4a 53 4f 4e 31 58 42   ..ENABLE JSON1XB
+|   3536: 49 4e 41 52 59 18 14 05 00 25 0f 19 45 4e 42 42   INARY....%..ENBB
+|   3552: 4d 45 20 4a 53 4f 4e 31 58 4e 4f 43 41 53 45 17   ME JSON1XNOCASE.
+|   3568: 13 05 00 25 0f 17 45 4e 41 42 4c 45 20 4a 53 4f   ...%..ENABLE JSO
+|   3584: 4e 31 58 52 54 52 49 4d 1a 12 05 00 29 0f 19 45   N1XRTRIM....)..E
+|   3600: 4e 41 42 4c 45 20 47 45 4f 50 4f 4c 59 58 42 49   NABLE GEOPOLYXBI
+|   3616: 4e 41 52 59 1a 11 05 00 29 0f 19 45 4e 41 1e 4c   NARY....)..ENA.L
+|   3632: 45 20 47 45 4f 50 4f 4c 59 58 4e 4f 43 41 53 45   E GEOPOLYXNOCASE
+|   3648: 19 10 05 00 29 0f 17 45 4e 41 42 4c 45 20 47 45   ....)..ENABLE GE
+|   3664: 4f 50 4f 4c 59 58 62 54 52 49 4d 17 0f 05 00 23   OPOLYXbTRIM....#
+|   3680: 0f 19 45 4e 41 42 4c 45 20 46 54 53 35 58 42 49   ..ENABLE FTS5XBI
+|   3696: 4e 41 52 59 17 0e 05 00 23 0f 19 45 4e 41 42 4c   NARY....#..ENABL
+|   3712: 45 20 46 54 fc 35 58 4e 4f 43 41 53 45 16 0d 05   E FT.5XNOCASE...
+|   3728: 00 23 0f 17 45 4e 41 42 4c 45 20 46 54 53 35 58   .#..ENABLE FTS5X
+|   3744: 52 54 52 49 4d 17 0c 05 00 23 0f 19 45 4e 41 42   RTRIM....#..ENAB
+|   3760: 4c 45 20 46 54 53 34 58 42 49 4e 41 52 59 17 0b   LE FTS4XBINARY..
+|   3776: 05 00 23 0f 19 45 4e 41 42 4c 45 20 46 54 53 35   ..#..ENABLE FTS5
+|   3792: 58 4e 4f 43 40 53 45 16 0a 05 00 23 0f 17 45 4e   XNOC@SE....#..EN
+|   3808: 41 42 4c 45 20 56 54 53 34 58 52 54 52 49 4d 1e   ABLE VTS4XRTRIM.
+|   3824: 09 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3840: 54 41 54 20 56 54 41 42 58 42 49 4e 41 b3 58 1e   TAT VTABXBINA.X.
+|   3856: 08 05 00 31 0f 19 45 4e 40 42 4c 45 20 44 42 53   ...1..EN@BLE DBS
+|   3872: 54 41 54 20 56 54 41 42 58 4e 4f 43 41 53 45 1d   TAT VTABXNOCASE.
+|   3888: 07 05 00 31 0f 17 45 4e 41 42 4c 45 20 45 42 53   ...1..ENABLE EBS
+|   3904: 54 41 54 20 56 54 41 42 58 52 54 52 49 4d 11 06   TAT VTABXRTRIM..
+|   3920: 05 00 17 0f 19 44 45 42 55 47 58 42 49 4e 41 52   .....DEBUGXBINAR
+|   3936: 59 11 05 05 00 17 0f 19 44 45 42 55 47 58 4e 4f   Y.......DEBUGXNO
+|   3952: 43 41 53 45 10 04 05 00 17 0f 17 44 45 42 55 47   CASE.......DEBUG
+|   3968: 58 52 54 52 49 4d 27 03 05 00 43 0f 19 43 4f 4d   XRTRIM'...C..COM
+|   3984: 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e 30 20   PILER=gcc-5.4.0 
+|   4000: 32 30 31 36 30 36 30 39 58 4b 19 4e 41 52 59 27   20160609XK.NARY'
+|   4016: 02 05 00 43 0f 19 43 4f 4d 50 49 4c 45 52 3d 67   ...C..COMPILER=g
+|   4032: 63 63 2d 35 2e 34 2e 30 20 32 30 31 36 30 36 30   cc-5.4.0 2016060
+| page 5 offset 16384
+|      0: 0d 00 00 00 02 0b a0 00 0c ad 0b a0 00 00 00 00   ................
+|   2976: 82 0a 02 08 08 09 08 08 17 84 06 30 20 32 34 33   ...........0 243
+|   2992: 00 01 30 04 25 06 1b 00 00 08 32 30 31 36 30 36   ..0.%.....201606
+|   3008: 30 39 03 25 07 00 00 01 34 03 25 05 00 00 01 35   09.%....4.%....5
+|   3024: 03 25 04 00 01 07 30 30 30 30 30 30 30 03 25 1a   .%....0000000.%.
+|   3040: 00 00 08 63 6f 6d 70 69 6c 65 72 03 25 02 00 00   ...compiler.%...
+|   3056: 06 64 62 73 74 51 74 03 25 0a 00 01 04 65 62 75   .dbstQt.%....ebu
+|   3072: 67 03 25 08 00 00 06 65 6e 61 62 6c 65 09 25 09   g.%....enable.%.
+|   3088: 05 04 04 04 04 04 00 01 08 78 74 65 6e 73 69 6f   .........xtensio
+|   3104: 6e 03 25 1d 00 00 04 66 74 73 34 03 25 0d 00 03   n.%....fts4.%...
+|   3120: 01 35 03 25 0f 00 00 03 67 63 63 03 25 03 00 01   .5.%....gcc.%...
+|   3136: 06 65 6f 70 6f 6c 79 03 25 11 00 00 05 6a 73 6f   .eopoly.%....jso
+|   3152: 6e 31 03 25 13 00 00 04 6c 6f 61 64 03 25 1c 00   n1.%....load.%..
+|   3168: 00 03 6d 61 78 03 25 18 00 01 05 65 6d 6f 72 79   ..max.%....emory
+|   3184: 03 25 19 00 03 04 73 79 73 35 03 25 15 00 00 04   .%....sys5.%....
+|   3200: 6f 6d 69 74 03 25 1b 00 00 05 72 74 72 65 65 03   omit.%....rtree.
+|   3216: 25 17 00 00 0a 74 68 72 65 61 64 73 61 66 65 03   %....threadsafe.
+|   3232: 25 1e 00 00 04 76 74 61 62 03 25 0b 00 86 50 01   %....vtab.%...P.
+|   3248: 08 08 08 08 08 17 8d 12 30 20 38 33 35 00 01 30   ........0 835..0
+|   3264: 12 01 06 00 01 06 00 01 06 00 1e f3 00 01 03 00   ................
+|   3280: 01 03 00 00 08 32 30 31 36 30 36 30 39 09 01 07   .....20160609...
+|   3296: 00 01 07 00 01 07 00 00 01 34 09 01 05 00 01 05   .........4......
+|   3312: 00 01 05 00 00 01 35 09 01 04 00 01 04 00 01 04   ......5.........
+|   3328: 00 01 07 30 30 30 30 2f 30 30 09 1c 04 00 01 04   ...0000/00......
+|   3344: 00 01 04 00 00 06 62 69 6e 61 72 79 3c 03 01 02   ......binary<...
+|   3360: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3376: 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00   ................
+|   3392: 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03   ................
+|   3408: 01 02 02 00 03 01 02 02 00 00 08 63 6f 6d 70 69   ...........compi
+|   3424: 6c 65 72 09 01 02 00 01 02 00 01 02 00 00 06 64   ler............d
+|   3440: 62 73 74 61 74 09 07 03 00 01 03 00 01 03 00 01   bstat...........
+|   3456: 04 65 62 75 67 09 04 02 00 01 02 00 01 02 00 00   .ebug...........
+|   3472: 06 65 6e 61 62 6c 65 3f 07 02 00 01 02 00 01 02   .enable?........
+|   3488: 00 01 02 00 01 02 00 01 01 f0 01 02 00 57 02 00   .............W..
+|   3504: 01 02 00 01 02 00 01 02 00 01 02 00 01 02 10 01   ................
+|   3520: 02 00 01 02 00 01 02 00 01 02 00 01 02 00 01 02   ................
+|   3536: 00 00 02 00 01 02 00 01 08 78 74 65 6e 73 69 6f   .........xtensio
+|   3552: 6e 09 1f 04 00 01 04 00 01 04 00 00 04 66 74 73   n............fts
+|   3568: 34 09 0a 03 00 01 03 00 01 03 00 03 01 35 09 0d   4............5..
+|   3584: 03 00 01 03 00 a9 03 00 00 03 67 63 63 09 01 03   ..........gcc...
+|   3600: 00 01 03 00 01 03 00 01 06 65 6f 70 6f 6c 79 09   .........eopoly.
+|   3616: 10 03 00 01 03 00 01 03 00 00 05 6a 73 6f 6e 31   ...........json1
+|   3632: 09 13 03 00 01 03 00 01 03 00 00 04 6c 6f 61 64   ............load
+|   3648: 09 1f 03 00 01 03 00 01 03 00 00 03 6d 61 78 09   ............max.
+|   3664: 1c 02 0b 31 02 00 01 02 00 01 05 65 6d 6f 72 79   ...1.......emory
+|   3680: 09 1c 03 00 01 03 00 01 03 00 03 04 73 79 73 35   ............sys5
+|   3696: 09 16 03 00 01 03 00 01 03 00 00 06 6e 6f 63 61   ............noca
+|   3712: 73 65 3c 02 01 02 02 00 03 01 02 02 00 03 01 02   se<.............
+|   3728: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3744: 00 03 01 02 02 00 f3 01 02 02 00 03 01 02 02 00   ................
+|   3760: 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00 00   ................
+|   3776: 04 6f 6d 69 74 09 1f 02 00 01 02 00 01 02 00 00   .omit...........
+|   3792: 05 72 74 72 65 65 09 19 03 00 01 03 00 01 03 00   .rtree..........
+|   3808: 03 02 69 6d 3c 01 01 02 02 00 03 01 02 02 00 03   ..im<...........
+|   3824: 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01   ................
+|   3840: 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02   ................
+|   3856: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3872: 00 00 0a 74 68 72 65 61 64 63 61 66 65 09 22 02   ...threadcafe...
+|   3888: 00 01 02 00 02 02 00 00 04 76 74 61 62 09 07 04   .........vtab...
+|   3904: 00 01 04 00 01 04 00 00 01 78 b4 01 01 01 01 02   .........x......
+|   3920: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+|   3936: 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01   ................
+|   3952: 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01   ................
+|   3968: 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01   ................
+|   3984: 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02   ................
+|   4000: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+|   4016: 01 01 01 02 00 01 01 01 02 00 01 00 01 02 00 01   ................
+|   4032: 01 01 02 00 01 01 00 e2 00 01 01 01 02 00 01 01   ................
+|   4048: 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01   ................
+|   4064: 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02   ................
+|   4080: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 02 0f f5 00 0f fb 0f f5 00 00 00 00   ................
+|   4080: 00 00 00 00 00 05 04 08 09 01 02 04 04 08 08 09   ................
+| page 7 offset 24576
+|      0: 0d 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 0d 05 02 23 61 00 00 00   ...........#a...
+| end crash-26682721375870.db
+}]} {}
+
+do_execsql_test 26.1 {
+  PRAGMA writable_schema = 1;
+  SELECT count(*) FROM (
+    SELECT t1, (t1) FROM t1 WHERE b MATCH 'x'
+  )
+} 34
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 27.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 28672 pagesize 4096 filename crash-23ddd777a03bfd.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 00   .....@  ........
+|     96: 00 00 00 00 0d 0e b1 00 06 0d a4 00 0f 8d 0f 21   ...............!
+|    112: 0e b9 0d c8 0e 7e 0d a4 00 00 00 00 00 00 00 00   .....~..........
+|   3488: 00 00 00 00 22 07 06 17 11 11 01 31 74 61 62 6c   ...........1tabl
+|   3504: 65 74 32 74 32 07 43 52 45 41 54 45 20 54 41 42   et2t2.CREATE TAB
+|   3520: 4c 45 20 74 32 28 78 29 81 33 05 07 17 1f 1f 01   LE t2(x).3......
+|   3536: 82 35 74 61 62 6c 65 74 31 5f 73 65 67 64 69 72   .5tablet1_segdir
+|   3552: 74 31 5f 73 65 67 64 69 72 05 43 52 45 41 54 45   t1_segdir.CREATE
+|   3568: 20 54 41 42 4c 45 20 27 74 31 5f 73 65 67 64 69    TABLE 't1_segdi
+|   3584: 72 27 28 6c 65 76 65 6c 20 49 4e 54 45 47 45 52   r'(level INTEGER
+|   3600: 2c 69 64 78 20 49 4e 54 45 47 45 52 2c 73 74 61   ,idx INTEGER,sta
+|   3616: 72 74 5f 62 6c 6f 63 6b 20 49 4e 54 45 47 45 52   rt_block INTEGER
+|   3632: 2c 6c 65 61 76 65 73 5f 65 6e 64 5f 62 6c 6f 63   ,leaves_end_bloc
+|   3648: 6b 20 49 4e 54 45 47 45 52 2c 65 6e 64 5f 62 6c   k INTEGER,end_bl
+|   3664: 6f 63 6b 20 49 4e 54 45 47 45 52 2c 72 6f 6f 74   ock INTEGER,root
+|   3680: 20 42 4c 4f 42 2c 50 52 49 4d 41 52 59 20 4b 45    BLOB,PRIMARY KE
+|   3696: 59 28 6c 65 76 65 6c 2c 20 69 64 78 29 29 31 06   Y(level, idx))1.
+|   3712: 06 17 45 1f 01 00 69 6e 64 65 78 73 71 6c 69 74   ..E...indexsqlit
+|   3728: 65 5f 61 75 74 6f 69 6e 64 65 78 5f 74 31 5f 73   e_autoindex_t1_s
+|   3744: 65 67 64 69 72 5f 31 74 31 5f 73 65 67 64 69 72   egdir_1t1_segdir
+|   3760: 06 0f c7 00 08 00 00 00 00 66 04 07 17 23 23 01   .........f...##.
+|   3776: 81 13 74 61 62 6c 65 74 31 5f 73 65 67 6d 65 6e   ..tablet1_segmen
+|   3792: 64 73 74 31 5f 73 65 67 6d 65 6e 73 73 04 43 52   dst1_segmenss.CR
+|   3808: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 73   EATE TABLE 't1_s
+|   3824: 65 67 6d 65 6e 74 73 27 28 62 6c 6f 63 6b 69 64   egments'(blockid
+|   3840: 20 49 4e 54 45 47 45 52 20 50 52 49 4d 4e 72 59    INTEGER PRIMNrY
+|   3856: 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42    KEY, block BLOB
+|   3872: 29 6a 03 07 17 21 21 01 81 1f 74 61 62 6c 65 74   )j...!!...tablet
+|   3888: 31 5f 63 6f 6e 74 65 6e 74 74 31 5f 63 6f 6e 74   1_contentt1_cont
+|   3904: 65 6e 74 04 43 52 45 41 54 45 20 54 41 42 4c 45   ent.CREATE TABLE
+|   3920: 20 27 74 31 5f 63 6f 6e 74 65 6e 74 27 28 64 6f    't1_content'(do
+|   3936: 63 69 64 20 49 4e 54 45 47 45 52 20 50 52 39 4d   cid INTEGER PR9M
+|   3952: 41 52 59 20 4b 45 59 2c 20 27 63 30 61 27 2c 20   ARY KEY, 'c0a', 
+|   3968: 27 63 31 62 27 2c 20 27 63 32 63 27 29 38 02 06   'c1b', 'c2c')8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 33   LE t1 USING fts3
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 00 00 00 00 00 00   (a,b,c).........
+| page 3 offset 8192
+|      0: 0d 00 00 00 26 0b 48 0e 0f d8 0f af 0f 86 0f 74   ....&.H........t
+|     16: 0f 61 0f 4e 0f 2f 0f 0f 0e ef 0e 00 00 00 00 00   .a.N./..........
+|   2880: 00 00 00 00 00 00 00 00 81 3f 25 06 00 72 7f 00   .........?%..r..
+|   2896: 00 43 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e   .COMPILER=gcc-5.
+|   2912: 34 2e 30 20 32 30 31 36 30 36 30 39 20 44 55 42   4.0 20160609 DUB
+|   2928: 55 47 20 45 4e 41 e4 7c 45 20 44 42 53 54 41 54   UG ENA.|E DBSTAT
+|   2944: e4 46 54 41 42 20 45 4e 41 42 4c 45 20 46 54 53   .FTAB ENABLE FTS
+|   2960: 34 20 45 4e 41 42 4c 45 20 46 54 53 35 20 45 4e   4 ENABLE FTS5 EN
+|   2976: 41 42 4c 45 20 47 45 4f 50 4f 4c 59 20 45 4e 41   ABLE GEOPOLY ENA
+|   2992: 42 4c 45 20 4a 53 4f 4e 31 20 45 4e 41 42 4c 45   BLE JSON1 ENABLE
+|   3008: 20 4d 45 4d 53 59 53 35 20 45 4e 41 42 4c 45 20    MEMSYS5 ENABLE 
+|   3024: 42 54 52 45 45 20 4d 41 58 20 4d 45 4d 4f 52 59   BTREE MAX MEMORY
+|   3040: 3d 35 30 30 30 30 30 30 30 20 4f 4c 49 54 20 4c   =50000000 OLIT L
+|   3056: 4f 41 43 20 45 58 54 45 4e 53 49 4f 4e 21 54 48   OAC EXTENSION!TH
+|   3072: 52 45 41 44 53 41 46 45 3d 30 18 24 05 00 25 0f   READSAFE=0.$..%.
+|   3088: 19 54 48 52 45 41 44 53 41 46 45 3d 30 58 42 49   .THREADSAFE=0XBI
+|   3104: 4e 41 52 59 18 23 05 00 25 0f 19 54 48 52 45 41   NARY.#..%..THREA
+|   3120: 44 53 41 4b 75 3d 30 58 4d 4f 43 41 53 45 17 22   DSAKu=0XMOCASE..
+|   3136: 05 00 25 0f 17 54 48 52 45 41 44 53 41 46 46 3d   ..%..THREADSAFF=
+|   3152: 30 58 52 54 52 49 4d 1f 21 05 00 33 0f 19 4f 4d   0XRTRIM.!..3..OM
+|   3168: 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 52 49 4f   IT LOAD EXTENRIO
+|   3184: 4e 58 42 49 4e 41 52 59 0f 20 05 00 33 0f 19 4f   NXBINARY. ..3..O
+|   3200: 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 43 49   MIT LOAD EXTENCI
+|   3216: 4f 4e 58 4e 4f 43 41 53 45 1e 1f 05 00 33 0f 17   ONXNOCASE....3..
+|   3232: 4f 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53   OMIT LOAD EXTENS
+|   3248: 49 4f 4e 58 52 5d 12 49 4d 1f 1e 05 00 33 0f 19   IONXR].IM....3..
+|   3264: 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30 30   MAX MEMORY=50000
+|   3280: 30 30 30 58 42 49 4e 41 52 59 1f 1d 05 00 33 0f   000XBINARY....3.
+|   3296: 19 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30   .MAX MEMORY=5000
+|   3312: 30 30 30 30 58 4f 4f 43 41 53 45 1e 1c 05 00 33   0000XOOCASE....3
+|   3328: 0f 17 4d 41 b8 20 4d 45 4d 4f 52 59 3d 35 30 3c   ..MA. MEMORY=50<
+|   3344: 30 30 30 30 30 58 52 54 52 49 4d 18 1b 05 00 25   00000XRTRIM....%
+|   3360: 0f 19 45 4e 41 42 4c 45 20 52 54 52 45 45 58 42   ..ENABLE RTREEXB
+|   3376: 49 4e 41 52 59 18 1a 05 0d a5 0f 19 45 4e 41 42   INARY.......ENAB
+|   3392: 4c 45 20 52 54 52 45 45 58 4e 4f 43 41 53 45 17   LE RTREEXNOCASE.
+|   3408: 19 1c 00 25 0f 17 45 4e 41 42 4c 45 20 52 54 52   ...%..ENABLE RTR
+|   3424: 45 45 58 52 54 52 49 4d 1a 18 05 00 29 0f 19 45   EEXRTRIM....)..E
+|   3440: 4e 41 42 4c 45 20 4d 45 4d 53 59 53 35 58 42 49   NABLE MEMSYS5XBI
+|   3456: 4e 41 53 59 1a 17 05 00 29 0f 19 45 4e 41 42 4c   NASY....)..ENABL
+|   3472: 45 20 4d 45 4d 53 59 53 35 58 4e 4f 43 41 53 45   E MEMSYS5XNOCASE
+|   3488: 19 16 05 00 29 0f 17 45 4e 41 42 4c 45 20 4d 45   ....)..ENABLE ME
+|   3504: 4d 53 59 53 35 58 52 54 52 49 4d 18 14 05 01 25   MSYS5XRTRIM....%
+|   3520: 0f 19 45 4e 12 42 4c 45 20 4a 53 4f 4e 31 58 42   ..EN.BLE JSON1XB
+|   3536: 49 4e 41 52 59 18 14 05 00 25 09 d9 45 4e 41 42   INARY....%..ENAB
+|   3552: 4c 45 20 4a 53 4f 3e 31 58 4e 4f 43 41 53 45 17   LE JSO>1XNOCASE.
+|   3568: 13 05 00 25 0f 17 45 4e 40 42 4c 45 20 4a 53 4f   ...%..EN@BLE JSO
+|   3584: 4e 31 58 52 54 52 49 4d 1a 12 05 82 29 0f 19 45   N1XRTRIM....)..E
+|   3600: 4e 41 42 4c 45 20 47 45 4f 50 4f 4d 59 58 42 49   NABLE GEOPOMYXBI
+|   3616: 4e 41 52 59 1a 11 05 c9 29 e8 19 46 4e 41 42 4c   NARY....)..FNABL
+|   3632: 48 c0 47 45 4f 50 4f 4c 59 58 4e 74 43 41 53 45   H.GEOPOLYXNtCASE
+|   3648: 19 10 05 00 29 0f 17 45 4e 41 42 4c 45 20 47 45   ....)..ENABLE GE
+|   3664: 4f 50 4f 4c 59 58 52 54 52 49 4d 17 0f 05 00 23   OPOLYXRTRIM....#
+|   3680: 0f 19 45 4e 41 42 4c 45 30 46 54 53 35 58 42 49   ..ENABLE0FTS5XBI
+|   3696: 4e 41 52 59 17 0e 05 00 23 0f 19 45 4e 41 42 4c   NARY....#..ENABL
+|   3712: 45 20 46 54 53 35 58 4e 4f 4a e1 53 45 16 0e 05   E FTS5XNOJ.SE...
+|   3728: 00 23 0f 17 45 4e 41 42 4c 45 20 46 54 53 35 58   .#..ENABLE FTS5X
+|   3744: 52 54 52 49 4d 17 0c 05 00 23 0f 19 45 4e 41 42   RTRIM....#..ENAB
+|   3760: 4c 45 20 46 54 53 34 58 42 49 4e 41 52 59 17 0b   LE FTS4XBINARY..
+|   3776: 05 00 23 0f 19 45 4e 41 42 4c 45 20 46 54 53 34   ..#..ENABLE FTS4
+|   3792: 58 4e 4f 43 41 53 45 16 0a 05 00 23 0f 17 55 4e   XNOCASE....#..UN
+|   3808: 41 42 4c 45 20 46 54 53 34 58 52 54 52 49 4d 1e   ABLE FTS4XRTRIM.
+|   3824: 09 05 00 31 0f 19 45 4e 42 42 4c 45 20 44 42 53   ...1..ENBBLE DBS
+|   3840: 54 41 54 20 56 54 41 42 58 42 49 4e 41 52 59 1e   TAT VTABXBINARY.
+|   3856: 08 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3872: 54 41 54 20 56 54 41 42 58 4e 4f 43 41 53 45 1d   TAT VTABXNOCASE.
+|   3888: 07 05 00 31 0f 17 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3904: 54 41 54 20 56 54 41 42 58 52 54 52 4a 4d 11 06   TAT VTABXRTRJM..
+|   3920: 05 f0 17 0f 29 44 45 42 55 47 58 42 49 4e 41 52   ....)DEBUGXBINAR
+|   3936: 59 11 05 05 00 17 0e 19 44 45 42 55 47 58 4e 4f   Y.......DEBUGXNO
+|   3952: 43 41 53 45 10 04 05 00 17 0f 16 44 45 42 55 47   CASE.......DEBUG
+|   3968: 58 52 54 52 49 4d 27 03 05 00 43 0f 19 43 4f 4d   XRTRIM'...C..COM
+|   3984: 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e 30 20   PILER=gcc-5.4.0 
+|   4000: 32 30 31 36 30 36 30 39 58 42 49 4e 41 52 59 27   20160609XBINARY'
+|   4016: 02 05 00 43 0f 19 43 4f 4d 50 49 4c 45 52 3d 67   ...C..COMPILER=g
+|   4032: 63 63 2d 35 2e 34 2e 30 20 32 30 31 36 30 36 30   cc-5.4.0 2016060
+|   4048: 39 58 4e 4f 43 41 53 45 26 01 06 00 43 0f 17 43   9XNOCASE&...C..C
+|   4064: 4f 4d 50 49 4b 45 52 3d 67 63 63 2d 35 2e 34 2e   OMPIKER=gcc-5.4.
+|   4080: 30 20 32 30 31 36 30 36 40 39 58 29 54 52 49 4d   0 201606@9X)TRIM
+| page 4 offset 12288
+|      0: 0d 00 10 00 00 10 00 00 00 00 00 00 00 00 00 00   ................
+|     16: 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+| page 5 offset 16384
+|      0: 0d 00 00 00 02 0b a0 00 0c ad 0b a0 00 00 00 00   ................
+|   2976: 82 0a 02 08 08 09 08 08 17 84 06 30 20 32 35 33   ...........0 253
+|   2992: 00 01 30 04 25 06 1b 00 00 08 32 30 31 36 30 36   ..0.%.....201606
+|   3008: 30 39 03 25 07 00 00 01 34 03 25 05 00 00 01 35   09.%....4.%....5
+|   3024: 03 25 04 00 01 07 30 30 30 30 30 30 30 03 25 1a   .%....0000000.%.
+|   3040: 00 00 08 63 6f 6d 70 69 6c 65 72 03 25 02 00 00   ...compiler.%...
+|   3056: 06 64 62 73 74 61 74 03 25 0a 00 01 04 65 62 75   .dbstat.%....ebu
+|   3072: 67 03 25 08 00 00 06 65 6e 61 62 7c 65 09 25 09   g.%....enab|e.%.
+|   3088: 05 04 04 04 04 04 00 01 08 78 74 65 6e 73 69 6f   .........xtensio
+|   3104: 6e 03 25 1d 00 00 04 66 74 73 34 03 25 0d 00 03   n.%....fts4.%...
+|   3120: 01 35 03 25 0f 00 00 03 67 63 63 03 25 03 00 01   .5.%....gcc.%...
+|   3136: 06 65 6f 70 6f 6c 79 03 25 11 00 00 05 6a 73 6f   .eopoly.%....jso
+|   3152: 6e 31 03 25 13 00 00 04 6c 6f 61 64 03 25 1c 00   n1.%....load.%..
+|   3168: 00 03 6d 61 78 03 25 18 00 01 05 65 6e 6f 72 79   ..max.%....enory
+|   3184: 03 25 19 00 03 04 ce 79 73 4d 03 25 15 00 00 04   .%.....ysM.%....
+|   3200: 6f 6d 69 74 03 25 1b 00 00 05 72 74 72 65 65 03   omit.%....rtree.
+|   3216: 25 17 00 00 0a 74 68 72 65 61 64 73 61 66 65 03   %....threadsafe.
+|   3232: 25 0e 00 00 04 76 74 61 62 03 25 0b 00 86 50 01   %....vtab.%...P.
+|   3248: 08 08 08 08 08 17 8d 12 30 20 38 33 35 00 01 30   ........0 835..0
+|   3264: 12 01 06 00 01 06 00 01 06 00 1f 03 00 01 03 00   ................
+|   3280: 01 03 00 00 08 32 30 31 36 30 36 30 39 09 01 07   .....20160609...
+|   3296: 00 01 07 00 01 07 00 00 01 34 09 01 05 00 01 05   .........4......
+|   3312: 00 01 05 00 00 01 35 09 01 04 00 01 04 00 01 04   ......5.........
+|   3328: 00 01 07 30 30 30 30 30 30 30 09 1c 04 00 01 04   ...0000000......
+|   3344: 00 01 04 00 00 06 62 69 6e 61 72 79 3c 03 01 02   ......binary<...
+|   3360: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3376: 00 03 01 02 02 00 02 f1 02 02 00 03 01 02 02 00   ................
+|   3392: 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03   ................
+|   3408: 01 01 f2 00 03 01 02 02 00 00 08 63 6f 6d 70 69   ...........compi
+|   3424: 6c 65 72 09 01 02 00 01 02 00 01 02 00 00 06 67   ler............g
+|   3440: d2 73 74 61 74 09 07 03 00 01 03 00 01 03 00 01   .stat...........
+|   3456: 04 65 62 75 67 09 04 02 00 01 02 00 01 02 00 00   .ebug...........
+|   3472: 06 65 6e 6f 82 6c 65 3f 07 02 00 01 02 00 01 02   .eno.le?........
+|   3488: b0 01 02 00 01 02 00 11 0a f0 01 02 00 01 02 00   ................
+|   3504: 01 02 00 01 02 00 01 02 00 01 a6 00 01 02 00 02   ................
+|   3520: 02 05 51 02 00 01 02 00 01 02 00 01 02 00 01 02   ..Q.............
+|   3536: 00 01 02 00 01 02 00 01 08 78 74 65 6e 73 69 6f   .........xtensio
+|   3552: 6e 09 1f 04 00 01 04 00 00 04 00 00 04 66 74 73   n............fts
+|   3568: 34 09 0a 03 00 01 03 00 01 03 00 03 01 35 09 0d   4............5..
+|   3584: 03 00 01 03 00 01 03 00 00 03 67 63 63 09 01 03   ..........gcc...
+|   3600: 00 01 03 00 01 03 00 01 06 65 6f 70 73 6c 79 09   .........eopsly.
+|   3616: 10 03 00 01 03 00 01 03 00 00 05 6a 73 6f 6e 31   ...........json1
+|   3632: 09 13 03 00 01 03 00 01 03 00 00 04 6c 6f 61 64   ............load
+|   3648: 09 1f 03 00 01 03 00 01 03 00 00 03 6d 61 78 09   ............max.
+|   3664: 1c 02 00 01 02 00 01 02 00 01 05 65 6d 6f 72 79   ...........emory
+|   3680: 09 1c 03 00 01 03 00 01 03 00 03 04 73 79 73 35   ............sys5
+|   3696: 09 16 03 00 01 03 00 01 03 00 00 06 6e 6f 63 61   ............noca
+|   3712: 73 65 3c 02 01 02 02 00 03 01 12 02 00 03 01 02   se<.............
+|   3728: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3744: 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00   ................
+|   3760: 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00 00   ................
+|   3776: 04 6f 6d 69 74 09 1f 02 00 01 02 00 01 02 00 00   .omit...........
+|   3792: 05 72 74 72 65 65 09 19 03 00 01 03 00 01 03 00   .rtree..........
+|   3808: 03 02 69 6d 3c 01 01 02 02 00 03 01 02 02 00 03   ..im<...........
+|   3824: 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01   ................
+|   3840: 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02   ................
+|   3856: 02 00 03 01 02 02 01 e3 01 02 02 00 03 01 02 02   ................
+|   3872: 00 00 0a 74 68 72 65 61 64 73 61 66 65 09 22 02   ...threadsafe...
+|   3888: 00 01 02 00 01 02 00 00 04 76 74 61 62 09 07 04   .........vtab...
+|   3904: 00 01 04 00 01 04 00 00 01 78 b4 01 01 01 01 02   .........x......
+|   3920: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+|   3936: 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01   ................
+|   3952: 01 01 01 f0 01 01 01 07 30 01 01 01 02 00 01 01   ........0.......
+|   3968: 01 02 00 ea 01 01 02 00 01 01 01 02 00 11 01 01   ................
+|   3984: 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02   ................
+|   4000: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+|   4016: 01 01 01 01 ff 01 01 01 02 00 01 01 01 02 00 01   ................
+|   4032: 01 01 02 00 01 11 01 02 00 01 01 01 02 00 01 01   ................
+|   4048: 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01   ................
+|   4064: 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02   ................
+|   4080: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 02 0f f5 00 0f fb 0f f5 01 00 00 00   ................
+|   4080: 00 00 00 00 00 05 04 08 09 01 02 04 04 08 08 09   ................
+| page 7 offset 24576
+|      0: 0d 00 00 00 05 0f b8 00 0e f4 0f e9 10 d6 0f c7   ................
+|   4016: 00 00 00 00 00 00 00 00 0f 85 02 23 61 75 74 6f   ...........#auto
+|   4032: 6d 65 72 67 65 3d 35 0d 04 02 23 6d 65 72 67 65   merge=5...#merge
+|   4048: 3d 31 00 00 00 00 00 00 00 00 00 00 00 00 00 00   =1..............
+| end crash-23ddd777a03bfd.db
+}]} {}
+
+do_catchsql_test 27.2 {
+  PRAGMA writable_schema = 1;
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x GLOB 2.16770 FROM x)
+    INSERT INTO t1(a) SELECT randomblob(3000) FROM t2 ;
+} {1 {database disk image is malformed}}
+do_catchsql_test 27.3 {
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT 3+x FROM c WHERE x<2.653)
+    INSERT INTO t1(a) SELECT randomblob(-current_time) FROM c;
+} {1 {database disk image is malformed}}
+do_catchsql_test 27.4 {
+  UPDATE t1 SET b=quote((true) ) WHERE t1 MATCH 'h*h*';
+} {0 {}}
+do_catchsql_test 27.5 {
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT 3+x FROM c WHERE x<2.653)
+    INSERT INTO t1(a) SELECT randomblob(-current_time) FROM c;
+} {1 {database disk image is malformed}}
+do_catchsql_test 27.5 {
+  INSERT INTO t1(t1) SELECT x FROM t2;
+} {1 {database disk image is malformed}}
+do_catchsql_test 27.6 {
+  INSERT INTO t1(t1) SELECT x FROM t2;
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 28.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 28672 pagesize 4096 filename crash-159ac1ca51ed55.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 00   .....@  ........
+|     96: 00 00 00 00 0d 0e b1 00 06 0d a4 00 0f 8d 0f 21   ...............!
+|    112: 0e b9 0d c8 0e 7e 0d a4 00 00 00 00 00 00 00 00   .....~..........
+|   3488: 00 00 00 00 22 07 06 17 11 11 01 31 74 61 62 6c   ...........1tabl
+|   3504: 65 74 32 74 32 07 43 52 45 41 54 45 20 54 41 42   et2t2.CREATE TAB
+|   3520: 4c 45 20 74 32 28 78 29 81 33 05 07 17 1f 1f 01   LE t2(x).3......
+|   3536: 82 35 74 61 62 6c 65 74 31 5f 73 65 67 64 69 72   .5tablet1_segdir
+|   3552: 74 31 5f 73 65 67 64 69 72 05 43 52 45 41 54 45   t1_segdir.CREATE
+|   3568: 20 54 41 42 4c 45 20 27 74 31 5f 73 65 67 64 69    TABLE 't1_segdi
+|   3584: 72 27 28 6c 65 76 65 6c 20 49 4e 54 45 47 45 52   r'(level INTEGER
+|   3600: 2c 69 64 78 20 49 4e 54 45 47 45 52 2c 73 74 61   ,idx INTEGER,sta
+|   3616: 72 74 5f 62 6c 6f 63 6b 20 49 4e 54 45 47 45 52   rt_block INTEGER
+|   3632: 2c 6c 65 61 76 65 73 5f 65 6e 64 5f 62 6c 6f 63   ,leaves_end_bloc
+|   3648: 6b 20 49 4e 54 45 47 45 52 2c 65 6e 64 5f 62 6c   k INTEGER,end_bl
+|   3664: 6f 63 6b 20 49 4e 54 45 47 45 52 2c 72 6f 6f 74   ock INTEGER,root
+|   3680: 20 42 4c 4f 42 2c 50 52 49 4d 41 52 59 20 4b 45    BLOB,PRIMARY KE
+|   3696: 59 28 6c 65 76 65 6c 2c 20 69 64 78 29 29 31 06   Y(level, idx))1.
+|   3712: 06 17 45 1f 01 00 69 6e 64 65 78 73 71 6c 69 74   ..E...indexsqlit
+|   3728: 65 5f 61 75 74 6f 69 6e 64 65 78 5f 74 31 5f 73   e_autoindex_t1_s
+|   3744: 65 67 64 69 72 5f 31 74 31 5f 73 65 67 64 69 72   egdir_1t1_segdir
+|   3760: 06 0f c7 00 08 00 10 00 00 66 04 07 17 23 23 01   .........f...##.
+|   3776: 81 13 74 61 62 6c 65 74 31 5f 73 65 67 6d 65 6e   ..tablet1_segmen
+|   3792: 64 73 74 31 5f 73 65 67 6d 65 6e 74 73 04 43 52   dst1_segments.CR
+|   3808: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 73   EATE TABLE 't1_s
+|   3824: 65 67 6d 65 6e 74 73 27 28 62 6c 6f 63 6b 69 64   egments'(blockid
+|   3840: 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59    INTEGER PRIMARY
+|   3856: 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42    KEY, block BLOB
+|   3872: 29 6a 03 07 17 21 21 01 81 1f 74 61 62 6c 65 74   )j...!!...tablet
+|   3888: 31 4f 63 6f 6e 74 65 6e 74 74 31 5f 63 6f 6e 74   1Ocontentt1_cont
+|   3904: 65 6e 74 03 43 52 45 41 54 45 20 54 41 42 4c 45   ent.CREATE TABLE
+|   3920: 20 27 74 31 5f 63 6f 6e 74 65 6e 74 27 28 64 6f    't1_content'(do
+|   3936: 63 69 64 20 49 4e 54 45 43 a5 52 20 50 52 39 4d   cid INTEC.R PR9M
+|   3952: 41 52 59 20 4b 45 59 2c 20 27 63 30 61 27 2c 20   ARY KEY, 'c0a', 
+|   3968: 27 63 31 62 27 2c 20 27 63 32 63 27 29 38 02 06   'c1b', 'c2c')8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 33   LE t1 USING fts3
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 00 00 00 00 00 00   (a,b,c).........
+| page 3 offset 8192
+|      0: 0d 00 00 00 26 0b 48 00 00 00 00 00 00 00 00 00   ....&.H.........
+|   2880: 00 00 00 00 00 00 00 00 81 3f 25 06 00 72 7f 00   .........?%..r..
+|   2896: 00 43 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e   .COMPILER=gcc-5.
+|   2912: 34 2e 30 20 32 30 31 36 30 36 30 39 20 44 55 42   4.0 20160609 DUB
+|   2928: 55 47 20 45 4e 41 e4 7c 45 20 44 42 53 54 41 54   UG ENA.|E DBSTAT
+|   2944: e4 46 54 41 42 20 45 4e 41 42 4c 45 20 46 54 53   .FTAB ENABLE FTS
+|   2960: 34 20 45 4e 41 42 4c 45 20 46 54 53 35 20 45 4e   4 ENABLE FTS5 EN
+|   2976: 41 42 1f 45 20 47 45 4f 50 4f 4c 59 20 45 4e 41   AB.E GEOPOLY ENA
+|   2992: 42 4c 45 20 4a 53 4f 4e 31 20 45 4e 41 42 4c 45   BLE JSON1 ENABLE
+|   3008: 20 4d 45 4d 53 59 53 35 20 45 4e 41 42 4c 45 20    MEMSYS5 ENABLE 
+|   3024: 42 54 52 45 45 20 4d 41 58 20 4d 45 4d 4f 52 59   BTREE MAX MEMORY
+|   3040: 3d 35 30 30 30 30 30 30 30 20 4f 4c 49 54 20 4c   =50000000 OLIT L
+|   3056: 4f 41 43 20 45 58 54 45 4e 53 49 4f 4e 21 54 48   OAC EXTENSION!TH
+|   3072: 52 45 41 44 53 41 46 45 3d 2f 18 24 05 00 25 0f   READSAFE=/.$..%.
+|   3088: 19 54 48 52 45 41 44 53 41 46 45 3d 30 58 42 49   .THREADSAFE=0XBI
+|   3104: 4e 41 52 59 18 23 05 00 25 0f 19 54 48 52 45 41   NARY.#..%..THREA
+|   3120: 44 53 41 4b 75 3d 30 58 4d 4f 43 41 53 45 17 22   DSAKu=0XMOCASE..
+|   3136: 05 00 25 0f 17 54 48 52 45 41 44 53 41 46 46 3d   ..%..THREADSAFF=
+|   3152: 30 58 52 54 52 49 4d 1f 21 05 00 33 0f 19 4f 4d   0XRTRIM.!..3..OM
+|   3168: 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 52 49 4f   IT LOAD EXTENRIO
+|   3184: 4e 58 42 49 4e 41 52 59 1f 20 05 00 33 0f 19 4f   NXBINARY. ..3..O
+|   3200: 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49   MIT LOAD EXTENSI
+|   3216: 4f 4e 58 4e 4f 43 41 53 45 1e 1f 05 00 33 0f 17   ONXNOCASE....3..
+|   3232: 4f 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53   OMIT LOAD EXTENS
+|   3248: 49 4f 4e 58 52 54 52 49 4d 1f 1e 05 00 33 0f 19   IONXRTRIM....3..
+|   3264: 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30 30   MAX MEMORY=50000
+|   3280: 30 30 30 58 42 49 4e 41 52 59 1f 1d 05 00 33 0f   000XBINARY....3.
+|   3296: 19 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30   .MAX MEMORY=5000
+|   3312: 30 30 30 30 58 4e 4f 43 41 53 45 1e 1c 05 00 33   0000XNOCASE....3
+|   3328: 0f 17 4d 42 b8 20 4d 45 4d 4f 52 59 3d 35 30 30   ..MB. MEMORY=500
+|   3344: 30 30 30 30 30 58 52 54 52 4a 4d 18 1b 05 00 25   00000XRTRJM....%
+|   3360: 0f 19 45 4e 41 42 4c 45 20 52 54 52 45 45 58 42   ..ENABLE RTREEXB
+|   3376: 49 4e 41 52 59 18 1a 05 0d a5 0f 19 45 4e 41 42   INARY.......ENAB
+|   3392: 4c 45 20 52 54 52 45 45 58 4e 4f 43 41 53 45 17   LE RTREEXNOCASE.
+|   3408: 19 1c 00 25 0f 17 45 4e 41 42 4c 45 20 52 54 52   ...%..ENABLE RTR
+|   3424: 45 45 58 52 54 52 49 4d 1a 18 05 00 29 0f 19 45   EEXRTRIM....)..E
+|   3440: 4e 41 42 4c 45 20 4d 45 4d 53 59 53 35 58 42 49   NABLE MEMSYS5XBI
+|   3456: 4e 41 52 59 1a 17 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3472: 45 20 4d 45 4d 53 59 53 35 58 4e 4f 43 41 53 45   E MEMSYS5XNOCASE
+|   3488: 19 16 05 00 29 0f 17 45 4e 41 42 4c 45 20 4d 45   ....)..ENABLE ME
+|   3504: 4d 53 59 53 35 58 52 54 52 49 4d 18 14 05 01 25   MSYS5XRTRIM....%
+|   3520: 0f 19 45 4e 12 42 4c 45 20 4a 53 4f 4e 31 58 42   ..EN.BLE JSON1XB
+|   3536: 49 4e 41 52 59 18 14 05 00 25 09 d9 45 4e 41 42   INARY....%..ENAB
+|   3552: 4c 45 20 4a 53 4f 3e 31 58 4e 4f 43 41 53 45 17   LE JSO>1XNOCASE.
+|   3568: 13 05 00 25 0f 17 44 4e 40 42 4c 45 20 4a 53 4f   ...%..DN@BLE JSO
+|   3584: 4e 31 58 52 54 52 49 4d 1a 12 05 82 29 0f 19 45   N1XRTRIM....)..E
+|   3600: 4e 41 42 4c 45 20 47 45 4f 50 4f 4c 59 58 42 49   NABLE GEOPOLYXBI
+|   3616: 4e 41 52 59 1a 11 05 c9 29 e8 19 46 4e 41 42 4c   NARY....)..FNABL
+|   3632: 48 c0 47 45 4f 50 4f 4c 59 58 4e 74 43 41 53 45   H.GEOPOLYXNtCASE
+|   3648: 19 10 05 00 29 0f 17 45 4e 41 42 4c 45 20 47 45   ....)..ENABLE GE
+|   3664: 4f 50 4f 4c 59 58 52 54 52 49 4d 17 0f 05 00 23   OPOLYXRTRIM....#
+|   3680: 0f 19 45 4e 41 42 4c 45 30 46 54 53 35 58 42 49   ..ENABLE0FTS5XBI
+|   3696: 4e 41 52 59 17 0e 05 00 23 0f 19 45 4e 41 42 4c   NARY....#..ENABL
+|   3712: 45 20 46 54 53 35 58 4e 4f 43 41 53 45 16 0e 05   E FTS5XNOCASE...
+|   3728: 00 23 0f 17 45 4e 41 42 4c 45 20 46 54 53 35 58   .#..ENABLE FTS5X
+|   3744: 52 54 52 49 4d 17 0c 05 00 23 0f 19 45 4e 41 42   RTRIM....#..ENAB
+|   3760: 4c 45 20 46 54 53 34 58 42 49 4e 41 52 59 17 0b   LE FTS4XBINARY..
+|   3776: 04 ff 23 0f 19 45 4e 41 42 4c 45 20 46 54 53 34   ..#..ENABLE FTS4
+|   3792: 58 4e 4f 43 41 53 45 16 0a 05 00 23 0f 17 45 4e   XNOCASE....#..EN
+|   3808: 41 42 4c 45 20 46 54 53 34 58 52 54 52 49 4d 1e   ABLE FTS4XRTRIM.
+|   3824: 09 05 00 31 0f 19 45 4e 42 42 4c 45 20 44 42 53   ...1..ENBBLE DBS
+|   3840: 54 41 54 20 56 54 41 42 58 42 49 4e 41 52 59 1e   TAT VTABXBINARY.
+|   3856: 08 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3872: 54 41 54 20 56 54 41 42 58 4e 4f 43 41 53 45 1d   TAT VTABXNOCASE.
+|   3888: 07 05 00 31 0f 17 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3904: 54 41 54 20 56 54 41 42 58 52 54 52 4a 4d 11 06   TAT VTABXRTRJM..
+|   3920: 05 f0 17 0f 19 44 45 42 55 47 58 42 49 4e 41 52   .....DEBUGXBINAR
+|   3936: 59 11 05 09 b0 17 0e 19 44 45 42 55 47 58 4e 4f   Y.......DEBUGXNO
+|   3952: 43 41 53 45 10 04 05 00 17 0f 16 44 45 42 55 47   CASE.......DEBUG
+|   3968: 58 52 54 52 49 4d 27 03 05 00 43 0f 19 43 4f 4d   XRTRIM'...C..COM
+|   3984: 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e 30 20   PILER=gcc-5.4.0 
+|   4000: 32 30 31 36 30 36 30 39 58 42 49 4e 41 52 59 27   20160609XBINARY'
+|   4016: 02 05 00 43 0f 19 43 4f 4d 50 49 4c 45 52 4d 67   ...C..COMPILERMg
+|   4032: 63 63 2d 35 2e 34 2e 30 20 32 30 31 36 30 36 30   cc-5.4.0 2016060
+|   4048: 39 58 4e 4f 43 41 53 45 26 01 06 00 43 0f 17 43   9XNOCASE&...C..C
+|   4064: 4f 4d 50 49 4b 45 52 3d 67 63 63 2d 35 2e 34 2e   OMPIKER=gcc-5.4.
+|   4080: 30 20 32 30 31 36 30 36 40 39 58 29 54 52 49 4d   0 201606@9X)TRIM
+| page 4 offset 12288
+|      0: 0d 00 10 00 00 10 00 00 00 00 00 00 00 00 00 00   ................
+| page 5 offset 16384
+|      0: 0d 00 00 00 02 0b a0 00 00 00 00 00 00 00 00 00   ................
+|   2976: 82 0a 02 08 08 09 08 08 17 84 06 30 20 32 35 33   ...........0 253
+|   2992: 00 01 30 04 25 06 1b 00 00 08 32 30 31 36 30 36   ..0.%.....201606
+|   3008: 30 39 03 25 07 00 00 01 34 03 25 05 00 00 01 35   09.%....4.%....5
+|   3024: 03 25 04 00 4d 07 30 30 30 30 30 30 30 03 25 1a   .%..M.0000000.%.
+|   3040: 00 00 08 63 6f 6d 70 69 6c 65 72 03 25 02 00 00   ...compiler.%...
+|   3056: 06 64 62 73 74 61 74 03 25 0a 00 01 04 65 62 75   .dbstat.%....ebu
+|   3072: 67 03 25 08 00 00 06 65 6e 61 62 6c 65 09 25 09   g.%....enable.%.
+|   3088: 05 04 04 04 04 04 00 01 08 78 74 65 6e 73 69 6f   .........xtensio
+|   3104: 6e 03 25 1d 00 00 04 66 74 73 34 03 25 0d 00 03   n.%....fts4.%...
+|   3120: 01 35 03 25 0f 00 00 03 67 63 63 03 25 03 00 01   .5.%....gcc.%...
+|   3136: 06 65 6f 70 6f 6c 79 03 25 10 ff ff f5 6a 73 6f   .eopoly.%....jso
+|   3152: 6e 31 03 25 13 00 00 04 6c 6f 61 64 03 25 1c 00   n1.%....load.%..
+|   3168: 00 03 6d 71 78 03 25 18 00 01 05 65 6e 6f 72 79   ..mqx.%....enory
+|   3184: 03 25 19 00 03 04 ce 79 73 4d 03 25 15 00 00 04   .%.....ysM.%....
+|   3200: 6f 6d 69 74 03 25 1b 00 00 05 72 74 72 65 65 03   omit.%....rtree.
+|   3216: 25 17 00 00 0a 7f 08 72 65 61 64 73 61 66 65 03   %......readsafe.
+|   3232: 25 0e 00 00 04 76 75 61 62 03 25 0b 00 86 50 01   %....vuab.%...P.
+|   3248: 08 08 08 08 08 17 8d 12 30 20 38 33 35 00 01 30   ........0 835..0
+|   3264: 12 01 06 00 01 06 00 01 06 00 1f 03 00 01 03 09   ................
+|   3280: 51 03 00 00 09 32 30 31 36 30 36 30 39 09 01 07   Q....20160609...
+|   3296: 00 01 07 00 01 07 00 00 01 34 09 01 05 00 01 05   .........4......
+|   3312: 00 01 05 00 00 01 35 09 01 04 00 01 03 ff 01 04   ......5.........
+|   3328: 00 01 07 30 30 30 30 30 30 30 09 1c 04 00 01 04   ...0000000......
+|   3344: 00 01 04 00 00 06 62 69 6e 61 72 79 3c 03 01 02   ......binary<...
+|   3360: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3376: 00 03 01 02 02 00 02 f1 02 02 00 03 01 02 02 00   ................
+|   3392: 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03   ................
+|   3408: 01 02 02 00 03 01 02 02 00 00 08 63 6f 6d 70 69   ...........compi
+|   3424: 6c 65 72 09 01 02 00 01 02 00 01 02 00 00 06 67   ler............g
+|   3440: d2 73 74 61 74 09 07 03 00 01 03 00 01 03 00 01   .stat...........
+|   3456: 04 65 62 75 67 09 04 02 00 01 02 00 01 02 00 00   .ebug...........
+|   3472: 06 65 6e 6f 82 6c 65 3f 07 02 00 01 02 00 01 02   .eno.le?........
+|   3488: b0 01 02 00 00 f2 00 11 02 00 01 02 00 01 02 00   ................
+|   3504: 01 02 00 01 02 00 01 02 00 01 a6 00 01 02 00 01   ................
+|   3520: 02 05 51 02 00 01 02 00 01 02 00 01 02 00 01 02   ..Q.............
+|   3536: 00 01 02 00 01 02 00 01 08 78 74 65 6e 73 69 6f   .........xtensio
+|   3552: 6e 09 1f 04 00 01 04 00 00 04 00 00 04 66 74 73   n............fts
+|   3568: 34 09 0a 03 00 01 03 00 01 03 00 03 01 35 09 0d   4............5..
+|   3584: 03 00 01 03 00 01 03 00 00 03 67 63 63 09 01 03   ..........gcc...
+|   3600: 00 01 03 00 01 03 00 01 06 65 6f 70 73 6c 79 09   .........eopsly.
+|   3616: 10 03 00 01 03 00 01 03 00 00 05 6a 73 6f 6e 31   ...........json1
+|   3632: 09 13 03 00 01 03 00 01 03 00 00 04 6c 6f 61 64   ............load
+|   3648: 09 1f 03 00 01 03 00 01 03 00 00 03 6d 61 78 09   ............max.
+|   3664: 1c 02 00 01 02 00 01 02 00 01 05 65 6d 6f 72 79   ...........emory
+|   3680: 09 1c 03 00 01 03 00 01 03 00 03 04 73 79 73 35   ............sys5
+|   3696: 09 16 03 00 01 03 00 01 03 00 00 06 6e 6f 63 61   ............noca
+|   3712: 73 65 3c 02 01 02 02 00 03 01 12 02 00 03 01 02   se<.............
+|   3728: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3744: 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00   ................
+|   3760: 0f 71 02 02 00 03 01 02 02 00 03 6f 02 02 00 00   .q.........o....
+|   3776: 04 6f 6d 69 74 09 1f 02 00 01 02 00 01 02 00 00   .omit...........
+|   3792: 05 72 74 72 65 65 09 19 03 00 01 03 00 01 03 00   .rtree..........
+|   3808: 03 02 69 6d 3c 01 01 02 02 00 03 01 02 02 00 03   ..im<...........
+|   3824: 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01   ................
+|   3840: 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02   ................
+|   3856: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3872: 00 00 0a 74 68 72 65 61 64 73 61 66 65 09 22 02   ...threadsafe...
+|   3888: 00 01 02 00 01 02 00 00 04 76 74 61 62 09 07 04   .........vtab...
+|   3904: 00 01 04 00 01 04 00 00 01 78 b4 01 01 01 01 02   .........x......
+|   3920: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+|   3936: 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01   ................
+|   3952: 01 01 02 00 01 01 01 07 30 01 01 01 02 00 01 01   ........0.......
+|   3968: 01 02 00 11 01 01 02 00 01 01 01 02 00 11 01 01   ................
+|   3984: 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02   ................
+|   4000: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+|   4016: 01 01 01 01 ff 01 01 01 02 00 01 01 01 02 00 01   ................
+|   4032: 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01   ................
+|   4048: 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01   ................
+|   4064: 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02   ................
+|   4080: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 02 0f f5 00 00 00 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 05 04 08 09 01 02 04 04 08 08 09   ................
+| page 7 offset 24576
+|      0: 0d 00 00 00 05 0f b8 00 0e f4 0f e9 10 d6 0f c7   ................
+|   4016: 00 00 00 00 00 00 00 00 0d 05 02 23 61 75 74 6f   ...........#auto
+|   4032: 6d 65 72 67 65 3d 35 0d 04 02 23 6d 65 72 67 65   merge=5...#merge
+|   4048: 3d 31 00 00 00 00 00 00 00 00 00 00 00 00 00 00   =1..............
+| end crash-159ac1ca51ed55.db
+}]} {}
+
+do_catchsql_test 28.1 {
+  PRAGMA writable_schema = 1;
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT 3+x FROM c WHERE x<72)
+    INSERT INTO t1(a) SELECT randomblob(2829) FROM c;
+} {1 {database disk image is malformed}}
+
+do_catchsql_test 28.2 {
+  UPDATE t1 SET b=quote((true) ) WHERE t1 MATCH 'h';
+} {0 {}}
+
+do_catchsql_test 28.3 {
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT 3+x FROM c WHERE x<72)
+    INSERT INTO t1(a) SELECT randomblob(2829) FROM c;
+} {1 {database disk image is malformed}}
+
+do_catchsql_test 28.4 {
+  WITH c(x) AS (VALUES(1) UNION ALL SELECT 3<<x FROM c WHERE x<72)
+    INSERT INTO t1(a) SELECT randomblob(2829) FROM c;
+} {0 {}}
+
+do_catchsql_test 28.5 {
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT 3+x FROM c WHERE x<72)
+    INSERT INTO t1(a) SELECT randomblob(2829) FROM c;
+} {1 {database disk image is malformed}}
+
+do_catchsql_test 28.6 {
+  WITH c(x) AS (VALUES(1) UNION ALL SELECT 3<<x FROM c WHERE x<72)
+    INSERT INTO t1(a) SELECT randomblob(2829) FROM c;
+} {0 {}}
+
+do_catchsql_test 28.7 {
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+3 FROM c WHERE x<72)
+    INSERT INTO t1(a) SELECT randomblob(2829) FROM c;
+} {1 {database disk image is malformed}}
+
+do_catchsql_test 28.8 {
+  INSERT INTO t1(t1) SELECT x FROM t2;
+} {0 {}}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_test 29.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 28672 pagesize 4096 filename crash-53f41622dd3bf6.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 00   .....@  ........
+|     96: 00 00 00 00 0d 0e b1 00 06 0d a4 00 0f 8d 0f 21   ...............!
+|    112: 0e b9 0d c8 0e 7e 0d a4 00 00 00 00 00 00 00 00   .....~..........
+|   3488: 00 00 00 00 22 07 06 17 11 11 01 31 74 61 62 6c   ...........1tabl
+|   3504: 65 74 32 74 32 07 43 52 45 41 54 45 20 54 41 42   et2t2.CREATE TAB
+|   3520: 4c 45 20 74 32 28 78 29 81 33 05 07 17 1f 1f 01   LE t2(x).3......
+|   3536: 82 35 74 61 62 6c 65 74 31 5f 73 65 67 54 69 72   .5tablet1_segTir
+|   3552: 74 31 5f 73 65 67 64 69 72 05 43 52 45 41 54 45   t1_segdir.CREATE
+|   3568: 20 54 41 42 4c 45 20 27 74 31 5f 73 65 67 64 69    TABLE 't1_segdi
+|   3584: 72 27 28 6c 65 76 65 6c 20 49 4e 54 45 47 45 52   r'(level INTEGER
+|   3600: 2c 69 64 78 20 49 4d 54 45 47 45 52 2c 73 74 61   ,idx IMTEGER,sta
+|   3616: 72 74 5f 62 6c 6f 63 6b 20 49 4e 54 45 47 45 52   rt_block INTEGER
+|   3632: 2c 6c 65 61 76 65 73 5f 65 6e 64 5f 62 6c 6f 63   ,leaves_end_bloc
+|   3648: 6b 20 49 4e 54 45 47 45 52 2c 65 6e 64 5f 62 6c   k INTEGER,end_bl
+|   3664: 6f 63 6b 20 49 4e 54 45 47 45 52 2c 72 6f 6f 74   ock INTEGER,root
+|   3680: 20 42 4c 4f 42 2c 50 52 49 4d 41 52 59 20 4b 45    BLOB,PRIMARY KE
+|   3696: 59 28 6c 65 76 65 6c 2c 20 69 64 78 29 29 31 06   Y(level, idx))1.
+|   3712: 06 17 45 1f 01 00 69 6e 64 65 78 73 71 6c 69 74   ..E...indexsqlit
+|   3728: 65 5f 61 75 74 6f 69 6e 64 65 78 5f 74 31 5f 73   e_autoindex_t1_s
+|   3744: 65 67 64 69 72 5f 31 74 31 5f 73 65 67 64 69 72   egdir_1t1_segdir
+|   3760: 06 0f c7 00 08 00 00 00 00 66 04 07 17 23 23 01   .........f...##.
+|   3776: 81 13 74 61 62 6c 65 74 31 5f 73 65 67 6d 65 6e   ..tablet1_segmen
+|   3792: 74 73 74 31 5f 73 65 67 6d 65 6e 74 73 04 43 52   tst1_segments.CR
+|   3808: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 73   EATE TABLE 't1_s
+|   3824: 65 67 6d 65 6e 74 73 27 28 62 6c 6f 63 6b 69 64   egments'(blockid
+|   3840: 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59    INTEGER PRIMARY
+|   3856: 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42    KEY, block BLOB
+|   3872: 29 6a 03 07 17 21 21 01 81 1f 74 61 62 6c 65 74   )j...!!...tablet
+|   3888: 31 5f 63 6f 6e 74 65 6e 74 74 31 5f 63 6f 6e 74   1_contentt1_cont
+|   3904: 65 6e 74 03 43 52 45 41 54 45 20 54 41 42 4c 45   ent.CREATE TABLE
+|   3920: 20 27 74 31 5f 63 6f 6e 74 65 6e 74 27 28 64 6f    't1_content'(do
+|   3936: 63 69 64 20 49 4e 54 45 47 45 52 20 50 52 39 4d   cid INTEGER PR9M
+|   3952: 41 52 59 20 4b 45 59 2c 20 27 63 30 61 27 2c 20   ARY KEY, 'c0a', 
+|   3968: 27 63 31 62 27 2c 20 27 63 32 63 27 29 38 12 06   'c1b', 'c2c')8..
+|   3984: 17 11 11 08 5f 74 61 6b 3c 65 74 31 74 31 43 52   ...._tak<et1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 33   LE t1 USING fts3
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 00 00 00 00 00 00   (a,b,c).........
+| page 3 offset 8192
+|      0: 0d 00 00 00 25 0b 48 00 0f d8 0f af 0f 86 0f 74   ....%.H........t
+|     16: 0f 61 0f 4e 0f 2f 0f 0f 0e ef 0e d7 0e be 0e a5   .a.N./..........
+|     32: 0e 8d 0e 74 0e 5b 0e 40 0e 24 0e 08 0d ef 0d d5   ...t.[.@.$......
+|     48: 0d bb 0d a0 0d 84 03 28 0d 4f 0d 35 0d 1b 0c fb   .......(.O.5....
+|     64: 0c da 0c b9 0c 99 0c 78 0c 57 0c 3e 0c 24 0c 0a   .......x.W.>.$..
+|     80: 0b 48 00 00 00 00 00 00 00 00 00 00 00 00 00 00   .H..............
+|   2880: 00 00 00 00 00 00 00 00 81 3f 25 06 00 72 7f 00   .........?%..r..
+|   2896: 00 43 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e   .COMPILER=gcc-5.
+|   2912: 34 2e 30 20 32 30 31 36 30 36 30 39 21 44 45 42   4.0 20160609!DEB
+|   2928: 55 47 20 45 4e 41 42 4c 45 20 44 42 53 54 41 54   UG ENABLE DBSTAT
+|   2944: 20 56 54 41 42 20 45 4e 41 42 4c 46 20 46 54 53    VTAB ENABLF FTS
+|   2960: 34 20 45 4e 41 42 4c 45 20 46 54 53 35 20 45 4e   4 ENABLE FTS5 EN
+|   2976: 41 42 4c 45 20 47 45 4f 50 4f 4c 59 20 45 4e 41   ABLE GEOPOLY ENA
+|   2992: 42 4c 55 20 4a 53 4f 4e 31 20 45 4e 41 42 4c 45   BLU JSON1 ENABLE
+|   3008: 20 4d 45 4d 53 59 53 35 20 45 4e 41 42 4c 45 20    MEMSYS5 ENABLE 
+|   3024: 52 54 52 45 45 56 4d 41 58 20 4d 45 4d 4f 52 59   RTREEVMAX MEMORY
+|   3040: 3d 35 30 30 30 30 30 30 30 20 4f 4d 49 54 20 4c   =50000000 OMIT L
+|   3056: 4f 42 43 20 45 58 54 45 4e 53 49 4f 4e 20 54 48   OBC EXTENSION TH
+|   3072: 52 45 41 44 53 41 46 45 3d 40 18 24 05 00 25 0f   READSAFE=@.$..%.
+|   3088: 19 54 48 52 45 41 44 53 41 46 45 3d 30 58 42 49   .THREADSAFE=0XBI
+|   3104: 4e 41 52 59 18 23 05 00 25 0f 19 54 48 52 45 41   NARY.#..%..THREA
+|   3120: 44 53 41 46 45 3d 31 58 4e 4f 43 41 53 45 17 22   DSAFE=1XNOCASE..
+|   3136: 05 00 25 0f 17 54 48 52 45 41 44 43 41 46 45 3d   ..%..THREADCAFE=
+|   3152: 30 58 52 54 52 49 4d 1f 21 05 00 33 0f 19 4f 4d   0XRTRIM.!..3..OM
+|   3168: 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49 4f   IT LOAD EXTENSIO
+|   3184: 4e 58 42 49 4e 41 52 59 1f 20 05 00 33 0f 19 4f   NXBINARY. ..3..O
+|   3200: 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 48   MIT LOAD EXTENSH
+|   3216: cf 4e 58 4e 4f 43 41 53 45 1e 1f 05 00 33 0f 17   .NXNOCASE....3..
+|   3232: 4f 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53   OMIT LOAD EXTENS
+|   3248: 49 4f 4e 58 52 54 52 49 4d 1f 1e 05 00 33 0f 19   IONXRTRIM....3..
+|   3264: 4d 41 58 20 4d 45 4d 4f 52 59 2d 35 30 30 30 30   MAX MEMORY-50000
+|   3280: 30 30 30 58 42 49 4e 41 52 59 1f 1d 05 00 33 0f   000XBINARY....3.
+|   3296: 19 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30   .MAX MEMORY=5000
+|   3312: 30 30 30 30 58 4e 4f 43 41 53 45 1e 1c 05 00 33   0000XNOCASE....3
+|   3328: 0f 17 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30   ..MAX MEMORY=500
+|   3344: 30 30 30 30 30 58 52 54 52 49 4d 18 1b 05 00 25   00000XRTRIM....%
+|   3360: 0f 19 45 4e 41 42 4c 45 20 52 54 52 45 45 58 42   ..ENABLE RTREEXB
+|   3376: 49 4e 41 52 49 18 1a 05 0d a5 0f 19 45 4e 41 42   INARI.......ENAB
+|   3392: 4c 45 20 52 54 52 45 45 58 4e 4f be 31 53 45 17   LE RTREEXNO.1SE.
+|   3408: 19 05 00 25 0f 17 45 4e 41 42 4c 45 20 52 54 51   ...%..ENABLE RTQ
+|   3424: 45 45 58 52 54 52 49 4d 1a 18 05 00 29 0f 19 45   EEXRTRIM....)..E
+|   3440: 4e 41 42 4c 45 20 4d 45 4d 53 59 53 35 58 42 49   NABLE MEMSYS5XBI
+|   3456: 4e 41 52 59 1a 17 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3472: 45 20 4d 45 4d 53 59 53 35 58 4e 4f 43 41 53 45   E MEMSYS5XNOCASE
+|   3488: 19 16 05 00 29 0f 17 45 4e 41 42 4c 45 20 4d 45   ....)..ENABLE ME
+|   3504: 4d 53 59 53 37 f8 52 54 52 49 4d 18 14 05 00 25   MSYS7.RTRIM....%
+|   3520: 0f 19 45 4e 41 42 4c 45 20 4a 53 4f 4e 31 58 42   ..ENABLE JSON1XB
+|   3536: 49 4e 41 52 59 18 14 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3552: 4c 45 20 4a 53 4f 3e 31 58 4e 4f 43 41 53 45 17   LE JSO>1XNOCASE.
+|   3568: 13 05 00 25 0f 17 45 4e 41 42 4c 45 20 4a 53 4f   ...%..ENABLE JSO
+|   3584: 4e 31 58 52 54 52 49 4d 1a 12 05 00 29 0f 19 45   N1XRTRIM....)..E
+|   3600: 4e 41 42 4c 45 20 47 45 4f 50 4f 4c 59 58 42 49   NABLE GEOPOLYXBI
+|   3616: 4e 41 52 59 1a 11 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3632: 48 c0 47 45 4f 50 4f 4c 40 58 4e 4f 43 41 53 45   H.GEOPOL@XNOCASE
+|   3648: 19 10 05 00 29 0f 17 45 4e 41 42 4c 45 20 47 45   ....)..ENABLE GE
+|   3664: 4f 50 4f 4c 59 58 52 54 51 49 4d 17 0f 05 00 23   OPOLYXRTQIM....#
+|   3680: 0f 19 45 4e 41 42 4c 45 20 46 54 53 35 58 42 49   ..ENABLE FTS5XBI
+|   3696: 4e 41 52 59 17 0e 05 00 23 0f 19 45 4e 41 42 4c   NARY....#..ENABL
+|   3712: 45 20 46 54 53 35 58 4e 4f 43 41 53 45 16 0d 05   E FTS5XNOCASE...
+|   3728: 00 23 0f 17 45 4e 41 42 4c 45 20 46 54 53 35 58   .#..ENABLE FTS5X
+|   3744: 52 54 52 49 4d 17 0c 05 00 23 0f 19 45 4e 41 42   RTRIM....#..ENAB
+|   3760: 4c 45 20 46 54 53 34 58 42 49 4d 41 52 59 17 0b   LE FTS4XBIMARY..
+|   3776: 05 00 23 0f 19 45 4e 31 42 4c 45 20 46 1a 53 34   ..#..EN1BLE F.S4
+|   3792: 58 4e 4f 43 41 53 45 16 0a 05 00 23 0f 17 45 4e   XNOCASE....#..EN
+|   3808: 41 42 4c 45 20 46 54 53 34 58 52 54 52 49 4d 1e   ABLE FTS4XRTRIM.
+|   3824: 09 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3840: 54 41 54 20 56 54 41 42 58 42 49 4e 41 52 59 1e   TAT VTABXBINARY.
+|   3856: 08 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3872: 54 41 54 20 56 54 41 42 58 4e 4f 43 41 53 45 1d   TAT VTABXNOCASE.
+|   3888: 07 05 00 31 0f 17 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3904: 54 96 54 20 56 54 41 42 58 52 54 52 49 4d 11 06   T.T VTABXRTRIM..
+|   3920: 05 00 17 0f 1e e4 45 42 55 47 58 42 49 4e 41 52   ......EBUGXBINAR
+|   3936: 59 11 05 05 00 17 0e 19 44 45 42 55 47 58 4e 4f   Y.......DEBUGXNO
+|   3952: 43 41 53 45 10 04 05 00 17 0f 17 44 45 42 55 47   CASE.......DEBUG
+|   3968: 58 52 54 52 49 4d 27 03 05 01 43 0f 19 43 4f 4d   XRTRIM'...C..COM
+|   3984: 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e 30 20   PILER=gcc-5.4.0 
+|   4000: 32 30 31 36 30 36 30 39 58 42 49 4e 41 52 59 27   20160609XBINARY'
+|   4016: 02 05 00 43 0f 19 43 4f 4d 50 49 4c 45 52 3d 67   ...C..COMPILER=g
+|   4032: 63 63 2d 35 2e 34 2e 30 40 32 30 31 36 30 36 30   cc-5.4.0@2016060
+|   4048: 39 58 4e 4f 43 41 53 45 26 01 05 00 43 0f 17 43   9XNOCASE&...C..C
+|   4064: 4f 4d 4f 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e   OMOILER=gcc-5.4.
+|   4080: 30 20 32 30 31 36 30 36 30 39 58 52 54 52 49 4d   0 20160609XRTRIM
+| page 4 offset 12288
+|      0: 0d 00 00 01 00 10 00 00 00 00 00 00 00 00 00 00   ................
+| page 5 offset 16384
+|      0: 0d 00 00 00 02 0b a0 00 0c ad 0b a0 00 00 00 00   ................
+|   2976: 82 0a 02 08 08 09 08 08 17 84 06 30 20 32 35 33   ...........0 253
+|   2992: 00 01 30 04 25 06 1b 00 00 08 32 30 31 36 30 36   ..0.%.....201606
+|   3008: 30 39 03 25 07 00 00 01 34 03 25 05 00 00 01 35   09.%....4.%....5
+|   3024: 03 25 04 00 01 07 30 30 30 30 30 30 30 03 25 1a   .%....0000000.%.
+|   3040: 00 00 08 63 6f 6d 70 69 6c 65 72 03 25 02 00 00   ...compiler.%...
+|   3056: 06 64 62 73 74 61 74 03 25 0a 00 01 04 65 62 75   .dbstat.%....ebu
+|   3072: 67 03 25 08 00 00 06 65 6e 61 62 6c 65 09 25 09   g.%....enable.%.
+|   3088: 05 04 04 04 04 04 00 01 08 78 74 65 6e 73 69 6f   .........xtensio
+|   3104: 6e 03 25 1d 00 00 04 66 74 73 34 03 25 0d 00 03   n.%....fts4.%...
+|   3120: 01 35 03 25 0f 00 00 03 67 63 63 03 25 03 00 01   .5.%....gcc.%...
+|   3136: 06 65 6f 70 6f 6c 79 03 25 11 00 00 05 6a 73 6f   .eopoly.%....jso
+|   3152: 6e 31 03 25 13 00 00 04 6c 6f 61 64 03 25 1c 00   n1.%....load.%..
+|   3168: 00 03 6d 61 78 03 25 18 00 01 05 65 6d 6f 72 79   ..max.%....emory
+|   3184: 03 25 19 00 03 04 73 79 73 4d 03 25 15 00 00 04   .%....sysM.%....
+|   3200: 6e 6d 69 74 03 25 1b 00 00 05 72 74 72 65 65 03   nmit.%....rtree.
+|   3216: 25 17 00 00 0a 74 68 72 65 61 64 73 61 66 65 03   %....threadsafe.
+|   3232: 25 0e 00 00 04 76 74 61 62 03 25 0b 00 86 50 01   %....vtab.%...P.
+|   3248: 08 08 08 08 08 17 8d 12 30 20 38 33 35 00 01 30   ........0 835..0
+|   3264: 12 01 06 00 01 06 00 01 06 00 1f 03 00 01 03 00   ................
+|   3280: 01 03 00 00 08 32 30 31 36 30 36 30 39 09 01 bd   .....20160609...
+|   3296: 00 01 07 00 01 07 00 00 01 34 09 01 05 00 01 05   .........4......
+|   3312: 00 01 06 00 00 01 35 09 01 04 00 01 04 00 02 04   ......5.........
+|   3328: 00 01 07 30 30 e6 30 30 30 30 09 1c 04 00 01 04   ...00.0000......
+|   3344: 00 01 04 00 00 06 62 69 6e 61 72 79 3c 03 01 02   ......binary<...
+|   3360: 02 00 03 01 02 02 00 04 01 02 02 10 03 01 02 02   ................
+|   3376: 00 0f 71 02 12 00 03 01 02 02 00 03 01 65 02 00   ..q..........e..
+|   3392: 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03   ................
+|   3408: 01 0d a2 00 03 01 02 02 00 00 08 63 3b 6d 70 69   ...........c;mpi
+|   3424: 6c 65 72 09 01 02 00 01 02 00 01 02 00 00 06 64   ler............d
+|   3440: 62 73 74 61 74 09 07 03 00 01 03 00 01 03 00 01   bstat...........
+|   3456: 04 65 62 75 67 09 04 02 00 01 02 00 01 02 00 00   .ebug...........
+|   3472: 06 65 6e 61 62 6c 65 3f 07 02 00 01 02 00 01 02   .enable?........
+|   3488: 00 01 02 00 01 02 00 01 01 f0 01 02 00 01 02 00   ................
+|   3504: 01 02 00 01 02 00 01 02 00 01 02 00 01 02 00 01   ................
+|   3520: 02 00 01 02 00 01 02 00 01 02 00 01 02 00 01 02   ................
+|   3536: 00 01 02 00 01 02 00 01 08 78 74 65 6e 73 69 6f   .........xtensio
+|   3552: 6e 09 1f 04 00 01 04 00 01 04 00 00 04 66 74 73   n............fts
+|   3568: 34 09 0a 03 00 01 03 00 01 03 00 03 01 35 09 0d   4............5..
+|   3584: 03 00 01 03 00 01 03 00 00 03 67 63 63 09 01 03   ..........gcc...
+|   3600: 00 01 03 00 01 03 00 01 06 65 6f 70 6f 6c 79 09   .........eopoly.
+|   3616: 10 03 00 01 03 00 01 03 00 00 05 6a 73 6f 6e 31   ...........json1
+|   3632: 09 13 03 00 01 03 00 01 03 00 00 04 6c 6f 61 64   ............load
+|   3648: 09 1f 03 00 01 03 00 01 03 00 00 03 6d 61 78 09   ............max.
+|   3664: 1c 02 00 01 02 00 01 02 00 01 05 65 6d 6f 72 79   ...........emory
+|   3680: 09 1c 03 00 01 03 00 01 03 00 03 04 73 79 73 35   ............sys5
+|   3696: 09 16 03 00 01 03 00 01 03 00 00 06 6e 6f 63 61   ............noca
+|   3712: 73 65 3c 02 01 02 02 00 03 01 02 02 00 03 01 02   se<.............
+|   3728: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3744: 00 03 01 02 02 00 03 01 02 02 00 03 01 02 01 f0   ................
+|   3760: 03 01 02 02 05 93 01 02 02 00 03 01 02 02 00 00   ................
+|   3776: 04 6f 6d 69 74 09 1f 02 00 01 02 00 01 02 00 00   .omit...........
+|   3792: 05 72 8a 72 65 65 09 19 03 00 01 03 00 11 03 00   .r.ree..........
+|   3808: 03 02 69 6d 3c 01 01 02 02 00 03 01 02 02 00 03   ..im<...........
+|   3824: 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01   ................
+|   3840: 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02   ................
+|   3856: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3872: 00 00 0a 74 68 72 65 61 64 73 61 66 65 09 22 02   ...threadsafe...
+|   3888: 00 01 02 00 01 02 00 00 04 76 75 61 62 09 07 04   .........vuab...
+|   3904: 00 01 04 00 01 04 00 00 61 78 b4 01 01 01 01 02   ........ax......
+|   3920: 00 01 01 01 02 00 00 f1 01 02 00 01 01 01 02 00   ................
+|   3936: 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01   ................
+|   3952: 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01   ................
+|   3968: 01 02 00 01 01 01 01 ff 01 01 01 02 00 01 01 01   ................
+|   3984: 02 00 01 01 01 02 00 01 01 01 02 09 01 01 01 02   ................
+|   4000: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+|   4016: 01 01 01 02 00 01 02 01 02 00 01 01 01 02 00 01   ................
+|   4032: 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01   ................
+|   4048: 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01   ................
+|   4064: 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02   ................
+|   4080: 00 01 01 11 02 00 01 01 01 02 00 01 01 01 02 00   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 02 0f f5 00 0f fb 1f f5 00 00 00 00   ................
+|   4080: 00 00 00 00 00 05 04 08 09 01 02 04 04 08 08 09   ................
+| page 7 offset 24576
+|      0: 0d 00 00 00 05 0f b8 00 0f f4 0f e9 10 d6 0f c7   ................
+|   4016: 00 00 00 00 00 00 00 00 0d 05 02 23 61 75 74 6f   ...........#auto
+|   4032: 6d 65 72 67 65 3d 35 0d 04 02 23 6d 65 72 67 65   merge=5...#merge
+|   4048: 3d 31 00 00 00 00 00 00 00 00 00 00 00 00 00 00   =1..............
+| end crash-53f41622dd3bf6.db
+}]} {}
+
+do_catchsql_test 29.1 {
+  PRAGMA writable_schema = 1;
+  INSERT INTO t1(a) SELECT X'819192E578DE3F';
+  UPDATE t1 SET b=quote(zeroblob(current_date)) WHERE t1 MATCH 't*';
+  INSERT INTO t1(b) VALUES(x'78');
+  INSERT INTO t1(t1) SELECT x FROM t2;
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_test 30.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 28672 pagesize 4096 filename crash-e6e3857edf9b26.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 00   .....@  ........
+|     96: 00 00 00 00 0d 0e b1 00 06 0d a4 00 0f 8d 0f 21   ...............!
+|    112: 0e b9 0d c8 0e 7e 0d a4 00 00 00 00 00 00 00 00   .....~..........
+|   3488: 00 00 00 00 22 07 06 17 11 11 01 31 74 61 62 6c   ...........1tabl
+|   3504: 65 74 32 74 32 07 43 52 45 41 54 45 20 54 41 42   et2t2.CREATE TAB
+|   3520: 4c 45 20 74 32 28 78 29 81 33 05 07 17 1f 1f 01   LE t2(x).3......
+|   3536: 82 35 74 61 62 6c 65 74 31 5f 73 65 67 64 69 72   .5tablet1_segdir
+|   3552: 74 31 5f 73 65 67 64 69 72 05 43 52 45 41 54 45   t1_segdir.CREATE
+|   3568: 20 54 41 42 4c 45 20 27 74 31 5f 73 65 67 64 69    TABLE 't1_segdi
+|   3584: 72 27 28 6c 65 76 65 6c 20 49 4e 54 45 47 45 52   r'(level INTEGER
+|   3600: 2c 69 64 78 20 49 4e 54 45 47 45 52 2c 73 74 61   ,idx INTEGER,sta
+|   3616: 72 74 5f 62 6c 6f 63 6b 20 49 4e 54 45 47 45 52   rt_block INTEGER
+|   3632: 2c 6c 65 61 76 65 73 5f 65 6e 64 5f 62 6c 6f 63   ,leaves_end_bloc
+|   3648: 6b 20 49 4e 54 45 47 45 52 2c 65 6e 64 5f 62 6c   k INTEGER,end_bl
+|   3664: 6f 63 6b 20 49 4e 54 45 47 45 62 2c 72 6f 6f 74   ock INTEGEb,root
+|   3680: 20 42 4c 4f 42 2c 50 52 49 4d 41 52 59 20 4b 45    BLOB,PRIMARY KE
+|   3696: 59 28 6c 65 76 65 6c 2c 20 69 64 78 29 29 31 06   Y(level, idx))1.
+|   3712: 06 17 45 1f 01 00 69 6e 64 65 78 73 71 6c 69 74   ..E...indexsqlit
+|   3728: 65 5f 61 75 74 6f 69 6e 64 65 78 5f 74 31 5f 73   e_autoindex_t1_s
+|   3744: 65 67 64 69 72 5f 31 74 31 5f 73 65 67 64 69 72   egdir_1t1_segdir
+|   3760: 06 0f c7 00 08 00 00 00 00 66 04 07 17 23 23 01   .........f...##.
+|   3776: 81 13 74 61 62 6c 65 74 31 5f 73 65 67 6d 65 6e   ..tablet1_segmen
+|   3792: 74 73 74 31 5f 73 65 67 6d 65 6e 74 73 04 43 52   tst1_segments.CR
+|   3808: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 73   EATE TABLE 't1_s
+|   3824: 65 67 6d 65 6e 74 73 27 28 62 6c 6f 63 6b 69 64   egments'(blockid
+|   3840: 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59    INTEGER PRIMARY
+|   3856: 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42    KEY, block BLOB
+|   3872: 29 6a 03 07 17 21 21 01 81 1f 74 61 62 6c 65 74   )j...!!...tablet
+|   3888: 31 5f 63 6f 6e 74 65 6e 74 74 31 5f 63 6f 6e 74   1_contentt1_cont
+|   3904: 65 6e 74 03 43 52 45 41 54 45 20 54 41 42 4c 45   ent.CREATE TABLE
+|   3920: 20 27 74 31 5f 63 6f 6e 74 65 6e 74 27 28 64 6f    't1_content'(do
+|   3936: 63 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   cid INTEGER PRIM
+|   3952: 41 52 59 20 4b 45 59 2c 20 27 63 30 61 27 2c 20   ARY KEY, 'c0a', 
+|   3968: 27 63 31 62 27 2c 20 27 63 32 63 27 29 38 02 06   'c1b', 'c2c')8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 33   LE t1 USING fts3
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 00 00 00 00 00 00   (a,b,c).........
+| page 3 offset 8192
+|      0: 0d 00 00 00 25 0b 48 00 0f d8 0f af 0f 86 0f 74   ....%.H........t
+|     16: 0f 61 0f 4e 0f 2f 0f 0f 0e ef 0e d7 0e be 0e a5   .a.N./..........
+|     32: 0e 8d 0e 74 0e 5b 0e 40 0e 24 0e 08 0d ef 00 00   ...t.[.@.$......
+|   2880: 00 00 00 00 00 00 00 00 81 3f 25 06 00 82 7e f0   .........?%...~.
+|   2896: 00 43 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e   .COMPILER=gcc-5.
+|   2912: 34 23 00 20 32 30 31 36 30 36 30 39 20 44 45 42   4#. 20160609 DEB
+|   2928: 55 47 20 45 4e 41 42 4c 45 20 44 42 53 54 41 54   UG ENABLE DBSTAT
+|   2944: 20 56 54 41 42 20 45 4e 42 92 4c 45 20 46 54 53    VTAB ENB.LE FTS
+|   2960: 34 20 45 4e 41 42 4c 45 20 46 54 53 35 20 45 4e   4 ENABLE FTS5 EN
+|   2976: 41 42 4c 45 20 47 45 4f 50 4f 4c 59 20 45 4e 41   ABLE GEOPOLY ENA
+|   2992: 42 4c 45 1f 4a 53 4f 4e 31 20 45 4e 41 42 4c 49   BLE.JSON1 ENABLI
+|   3008: 00 4d 45 4d 53 59 53 35 20 45 4e 41 42 4c 45 20   .MEMSYS5 ENABLE 
+|   3024: 52 54 52 45 45 20 4d 41 58 20 4d 45 4d 4f 52 59   RTREE MAX MEMORY
+|   3040: 3d 35 30 30 30 30 30 30 30 20 4f 4d 49 54 20 4c   =50000000 OMIT L
+|   3056: 4f 41 44 20 45 58 54 45 4e 53 49 4f 4e 20 54 48   OAD EXTENSION TH
+|   3072: 52 45 41 44 53 41 46 45 3d 30 18 24 05 00 25 0f   READSAFE=0.$..%.
+|   3088: 19 54 48 52 45 41 44 53 41 46 45 3d 30 58 42 49   .THREADSAFE=0XBI
+|   3104: 4e 41 52 59 18 23 05 00 25 0f 19 54 48 52 45 41   NARY.#..%..THREA
+|   3120: 44 53 41 46 45 3d 30 88 4e 4f 43 41 53 45 17 22   DSAFE=0.NOCASE..
+|   3136: 05 00 25 0f 17 54 48 52 45 41 44 53 41 46 45 3d   ..%..THREADSAFE=
+|   3152: 30 58 52 54 52 49 4d 1f 21 05 00 33 0f 19 4f 4d   0XRTRIM.!..3..OM
+|   3168: 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49 4f   IT LOAD EXTENSIO
+|   3184: 4e 58 42 49 4e 41 52 59 1f 20 05 00 33 0f 19 4f   NXBINARY. ..3..O
+|   3200: 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49   MIT LOAD EXTENSI
+|   3216: 4f 4e 58 4e 4f 43 41 53 45 1e 20 05 00 33 0f 17   ONXNOCASE. ..3..
+|   3232: 4f 4d 49 54 20 4c 4f 41 54 20 45 58 54 45 4e 53   OMIT LOAT EXTENS
+|   3248: 49 4f 4e 58 52 54 52 49 4d 1f 1e 04 00 33 0f 19   IONXRTRIM....3..
+|   3264: 82 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30 30   .AX MEMORY=50000
+|   3280: 30 30 30 58 42 49 4e 41 52 59 1f 1d 05 00 33 0f   000XBINARY....3.
+|   3296: 19 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30   .MAX MEMORY=5000
+|   3312: 30 30 30 30 58 4e 4f 43 41 53 45 1e 1c 05 00 33   0000XNOCASE....3
+|   3328: 0f 17 4d 41 58 20 4d 45 4d fa 52 59 3d 35 30 20   ..MAX MEM.RY=50 
+|   3344: 30 30 30 30 30 58 52 54 52 49 4d 18 1b 05 00 25   00000XRTRIM....%
+|   3360: 0f 19 45 4e 41 42 4c 45 20 52 53 52 45 45 58 42   ..ENABLE RSREEXB
+|   3376: 49 4e 41 52 59 18 1a 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3392: 4c 45 20 52 54 52 45 45 58 4e 4f 53 41 53 45 17   LE RTREEXNOSASE.
+|   3408: 19 05 00 25 0f 17 45 4e 42 42 4c 45 20 52 54 52   ...%..ENBBLE RTR
+|   3424: 45 45 58 52 54 52 49 4d 1a 18 05 00 29 0f 19 45   EEXRTRIM....)..E
+|   3440: 4e 41 42 4c 45 20 4d 45 4d 53 5a 53 35 58 42 49   NABLE MEMSZS5XBI
+|   3456: 4e 41 52 59 1a 17 05 00 29 0f 19 45 4e 41 42 3c   NARY....)..ENAB<
+|   3472: 45 20 4d 45 4d 53 59 53 35 58 4e 4f 43 41 53 45   E MEMSYS5XNOCASE
+|   3488: 19 16 05 00 29 0f 17 45 4e 41 42 4c 45 20 4d 45   ....)..ENABLE ME
+|   3504: 4d 53 59 53 35 58 52 54 52 49 4d 18 15 05 00 25   MSYS5XRTRIM....%
+|   3520: 0f 19 45 4e 41 42 4c 45 20 4a 53 4f 4e 31 58 42   ..ENABLE JSON1XB
+|   3536: 49 4e 41 52 59 18 14 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3552: 4c 45 20 4a 53 4f 4e 31 58 4e 4f 43 41 53 45 17   LE JSON1XNOCASE.
+|   3568: 13 05 00 25 0f 17 45 4e 41 42 4c 45 20 4a 53 4f   ...%..ENABLE JSO
+|   3584: 4e 31 58 52 54 52 49 4d 1a 12 05 00 29 0f 19 45   N1XRTRIM....)..E
+|   3600: 4e 31 42 4c 45 20 47 45 4e 50 4f 4c 59 58 42 49   N1BLE GENPOLYXBI
+|   3616: 4e 41 52 59 1a 11 05 00 29 0f 19 45 4e f2 1e 4c   NARY....)..EN..L
+|   3632: 45 20 47 45 4f 50 4f 4c 59 58 4e 4f 43 41 53 45   E GEOPOLYXNOCASE
+|   3648: 19 10 05 00 29 0f 17 45 4e 41 42 4c 45 20 47 45   ....)..ENABLE GE
+|   3664: 4f 50 4f 4c 59 58 52 54 52 49 4d 17 0f 05 00 23   OPOLYXRTRIM....#
+|   3680: 0f 19 45 4e 41 42 4c 45 20 46 54 53 35 58 42 49   ..ENABLE FTS5XBI
+|   3696: 4e 41 52 59 17 0e 05 00 23 0f 19 45 4e 41 42 3c   NARY....#..ENAB<
+|   3712: 45 20 46 54 53 35 58 4e 4f 43 41 53 45 16 0d 05   E FTS5XNOCASE...
+|   3728: 00 23 0f 17 45 4e 41 42 4c 45 20 46 54 53 35 58   .#..ENABLE FTS5X
+|   3744: 52 54 52 49 4d 17 0c 05 00 23 0f 19 45 4e 41 42   RTRIM....#..ENAB
+|   3760: 4c 45 20 46 54 53 34 58 42 49 4e 41 52 59 17 0b   LE FTS4XBINARY..
+|   3776: 05 00 23 0f 19 45 4e 41 43 4c 45 20 46 54 53 35   ..#..ENACLE FTS5
+|   3792: 58 4e 4f 43 40 53 45 16 0a 05 00 23 0f 17 45 4e   XNOC@SE....#..EN
+|   3808: 41 42 4c 45 20 46 54 53 34 58 52 54 52 49 4d 1e   ABLE FTS4XRTRIM.
+|   3824: 09 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3840: 54 41 55 20 56 54 41 42 58 42 49 4e 41 52 59 1e   TAU VTABXBINARY.
+|   3856: 08 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3872: 54 41 54 20 56 54 41 42 58 4e 4f 43 41 53 45 1d   TAT VTABXNOCASE.
+|   3888: 07 05 00 31 0f 17 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3904: 54 41 54 20 56 54 41 42 58 52 54 62 49 4d 11 06   TAT VTABXRTbIM..
+|   3920: 05 00 17 0f 19 44 45 42 54 47 58 42 49 4e 41 52   .....DEBTGXBINAR
+|   3936: 59 11 05 05 00 17 0f 19 54 45 42 55 47 58 4e 4f   Y.......TEBUGXNO
+|   3952: 43 41 53 45 10 04 05 00 17 0f 17 44 45 42 55 47   CASE.......DEBUG
+|   3968: 68 52 54 52 49 4d 27 03 05 00 43 0f 19 43 4f 4d   hRTRIM'...C..COM
+|   3984: 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e 30 20   PILER=gcc-5.4.0 
+|   4000: 32 30 31 36 30 36 30 39 58 42 49 4e 41 52 59 27   20160609XBINARY'
+|   4016: 02 05 00 43 0f 19 43 4f 4d 50 49 4c 45 52 3d 67   ...C..COMPILER=g
+|   4032: 63 63 2d 35 2e 34 2e 30 20 32 30 31 36 30 36 30   cc-5.4.0 2016060
+|   4048: 39 58 4f 4f 43 41 53 45 26 01 05 00 43 0f 17 43   9XOOCASE&...C..C
+|   4064: 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e   OMPILER=gcc-5.4.
+|   4080: 30 20 32 30 31 36 30 36 30 39 58 52 54 52 49 4d   0 20160609XRTRIM
+| page 4 offset 12288
+|      0: 0d 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+| page 5 offset 16384
+|      0: 0d 00 00 00 02 0b a0 00 0c ad 0b a0 00 00 00 00   ................
+|   2976: 82 0a 02 08 08 09 08 08 17 84 06 30 20 32 35 33   ...........0 253
+|   2992: 00 01 30 04 25 06 1b 00 00 08 32 30 31 36 30 36   ..0.%.....201606
+|   3008: 30 39 03 25 07 00 00 01 34 03 25 05 00 00 01 35   09.%....4.%....5
+|   3024: 03 25 04 00 01 07 30 30 30 30 30 30 30 03 25 1a   .%....0000000.%.
+|   3040: 00 00 08 63 6f 6d 70 69 6c 65 72 03 25 02 00 00   ...compiler.%...
+|   3056: 06 64 62 73 74 61 74 03 25 0a 00 01 04 65 62 75   .dbstat.%....ebu
+|   3072: 67 03 25 08 00 00 06 65 6e 61 62 6c 65 09 25 09   g.%....enable.%.
+|   3088: 05 04 04 04 04 04 00 01 08 78 74 65 6e 73 69 6f   .........xtensio
+|   3104: 6e 03 25 1d 00 00 04 66 74 73 34 03 25 0d 00 03   n.%....fts4.%...
+|   3120: 01 35 03 25 0f 00 00 03 67 63 63 03 25 03 00 01   .5.%....gcc.%...
+|   3136: 06 65 6f 70 6f 6c 79 03 25 11 00 00 05 6a 73 6f   .eopoly.%....jso
+|   3152: 6e 31 03 25 14 00 e8 04 6c 6f 61 64 03 25 1c 00   n1.%....load.%..
+|   3168: 00 03 6d 61 78 03 25 18 00 01 05 65 6d 6f 72 79   ..max.%....emory
+|   3184: 03 25 19 00 03 04 73 79 73 35 03 25 15 00 00 04   .%....sys5.%....
+|   3200: 6f 6d 69 74 03 25 1b 00 00 05 72 74 72 65 65 03   omit.%....rtree.
+|   3216: 25 17 00 00 0a 74 68 72 65 61 64 73 61 66 65 03   %....threadsafe.
+|   3232: 25 1e 00 00 04 76 74 61 62 03 25 0b 00 86 50 01   %....vtab.%...P.
+|   3248: 08 08 08 08 08 17 8d 12 30 20 38 33 35 00 01 30   ........0 835..0
+|   3264: 12 01 06 00 01 06 00 01 06 00 1f 03 00 01 03 00   ................
+|   3280: 01 03 00 00 08 32 30 31 36 30 36 30 39 09 01 07   .....20160609...
+|   3296: 00 01 07 00 01 07 00 00 01 34 09 01 05 00 01 05   .........4......
+|   3312: 00 01 05 00 00 01 35 09 01 04 00 01 04 00 01 04   ......5.........
+|   3328: 00 01 07 30 30 30 30 30 30 30 09 1c 04 00 01 04   ...0000000......
+|   3344: 00 01 04 00 00 06 62 69 6e 61 72 79 3c 03 01 02   ......binary<...
+|   3360: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3376: 00 03 01 02 f2 00 03 01 02 02 00 03 01 02 02 00   ................
+|   3392: 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03   ................
+|   3408: 01 02 02 00 03 01 02 02 00 00 08 63 6f 6d 70 69   ...........compi
+|   3424: 6c 65 72 09 01 02 00 01 02 00 01 02 00 00 06 64   ler............d
+|   3440: 62 73 74 61 74 09 07 03 00 01 03 00 01 03 00 01   bstat...........
+|   3456: 04 65 62 75 67 09 04 02 00 01 02 00 01 02 00 00   .ebug...........
+|   3472: 06 65 6e 60 62 6c 65 3f 07 02 00 01 02 00 01 01   .en`ble?........
+|   3488: ff f1 b1 00 00 02 3f 01 01 f0 f1 02 00 57 02 00   ......?......W..
+|   3504: 01 02 00 01 02 00 01 02 00 01 02 00 01 02 10 01   ................
+|   3520: 02 00 01 02 00 01 02 00 01 02 01 01 02 00 01 02   ................
+|   3536: 00 01 02 00 00 f2 00 01 08 78 74 65 6e 73 69 6f   .........xtensio
+|   3552: 6e 09 1f 04 00 01 04 00 01 04 00 00 04 66 74 73   n............fts
+|   3568: 34 09 0a 03 00 01 03 00 01 03 00 03 01 35 09 0d   4............5..
+|   3584: 03 00 01 03 00 01 03 00 00 03 67 63 63 09 01 03   ..........gcc...
+|   3600: 00 01 03 00 01 03 00 01 06 65 6f 70 6f 6c 79 09   .........eopoly.
+|   3616: 10 03 00 01 03 00 01 03 00 00 b3 6a 73 6f 6e 31   ...........json1
+|   3632: 09 13 03 00 01 03 00 01 03 00 00 04 6c 6f 61 64   ............load
+|   3648: 09 1f 03 00 01 03 00 01 03 00 00 03 6d 61 78 09   ............max.
+|   3664: 1c 02 00 01 02 00 01 02 00 01 05 65 6d 6f 72 79   ...........emory
+|   3680: 09 1c 03 00 01 03 00 01 03 00 03 04 73 79 73 35   ............sys5
+|   3696: 09 16 03 00 01 03 00 01 03 cc 00 06 6e 6f 63 61   ............noca
+|   3712: 73 65 3c 02 01 02 02 00 03 01 02 02 00 03 01 02   se<.............
+|   3728: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3744: 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00   ................
+|   3760: 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00 00   ................
+|   3776: 04 6f 6d 69 74 09 1f 02 00 01 02 00 01 02 00 00   .omit...........
+|   3792: 05 72 74 62 65 65 09 19 03 00 01 03 00 01 03 00   .rtbee..........
+|   3808: 03 02 69 6d 3c 01 01 02 02 00 03 01 02 02 00 03   ..im<...........
+|   3824: 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01   ................
+|   3840: 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02   ................
+|   3856: 02 00 03 01 02 02 00 03 01 02 01 00 03 01 02 02   ................
+|   3872: 00 00 0a 74 68 72 65 61 64 73 61 66 65 09 22 02   ...threadsafe...
+|   3888: 00 01 02 00 02 02 00 00 04 76 74 61 62 09 07 04   .........vtab...
+|   3904: 00 01 03 00 01 04 00 00 01 78 b4 01 01 01 01 02   .........x......
+|   3920: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+|   3936: 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01   ................
+|   3952: 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01   ................
+|   3968: 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01   ................
+|   3984: 02 01 01 01 01 02 00 01 01 01 02 00 01 01 01 02   ................
+|   4000: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+|   4016: 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01   ................
+|   4032: 01 01 02 00 01 01 01 da 00 01 01 01 02 00 01 01   ................
+|   4048: 01 02 00 01 01 01 01 ff ff 01 01 02 00 01 01 01   ................
+|   4064: 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02   ................
+|   4080: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 02 0f f5 00 0f fb 0f f5 01 00 00 00   ................
+|   4080: 00 00 00 00 00 05 04 08 09 01 02 04 04 08 08 09   ................
+| page 7 offset 24576
+|      0: 01 6f 00 00 00 00 00 00 00 00 00 00 00 00 00 00   .o..............
+| end crash-e6e3857edf9b26.db
+}]} {}
+
+do_execsql_test 30.1 {
+  UPDATE t1 SET b=a;
+}
+
+do_catchsql_test 30.2 {
+  SELECT (matchinfo(null)) FROM t1 WHERE t1 MATCH 'ee*e*e*e*e*e*e*Re*e*e*e**' 
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 31.0 {
+CREATE VIRTUAL TABLE t1 USING fts3(a,b,c);
+INSERT INTO t1_segdir VALUES(0,0,0,0,'0 592',X'00016dcb048ce6fbd3b2d68bfebf0101020200808080808080808020010202008080808080808080100102020080808080808080800801020200808080808080808004010202008080808080808080020102020080808080808080800101020200808080808080804001020200808080808080802001020200808080808080801001020200808080808080800801020200808080808080800401020200808080808080800201020200808080808080800101020200808080808080400102020080808080808020010202008080808080801001020200808080808080080102020080808080808004010202008080808080800201020200808080808080010102020080808080804001020200808080808020010202008080808080100102020080808080800801020200808080808004010202008080808080020102020080808080800101020200808080804001020200808080802001020200808080801001020200808080800801020200808080800401020200808080800201020200808080800101020200808080400102020080808020010202008080801001020200808080080102020080808004010202008080800201020200808080010102020080804001020200808020010202008080100102020080800801020200808004010202008080020102020080800101020200804001020200802001020200801001020200800801020200800401020200800201020200800101020200400102020020010202001001020200080102020004010202000201020200010102020001010202008080808080808080800101020200');
+INSERT INTO t1_segdir VALUES(0,1,0,0,'0 18',X'00026d6d0d8ee6fbd3b2d68bfe7f01020200');
+}
+
+do_catchsql_test 31.1 {
+  SELECT (matchinfo(t1, c ) ) FROM t1 WHERE t1 MATCH 'M*M*M*M*';
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_test 32.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 24576 pagesize 4096 filename crash-74fdbc96edbc04.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 00   .....@  ........
+|     96: 00 00 00 00 0d 0e b1 00 06 0d a4 00 0f 8d 0f 21   ...............!
+|    112: 0e b9 0d c8 0e 7e 0d a4 00 00 00 00 00 00 00 00   .....~..........
+|   3488: 00 00 00 00 22 07 06 17 11 11 01 31 74 61 62 6c   ...........1tabl
+|   3504: 65 74 32 74 32 07 43 52 45 41 54 45 20 54 41 42   et2t2.CREATE TAB
+|   3520: 4c 45 20 74 32 28 78 29 81 33 05 07 17 1f 1f 01   LE t2(x).3......
+|   3536: 82 35 74 61 62 6c 65 74 31 5f 73 65 67 64 69 72   .5tablet1_segdir
+|   3552: 74 31 5f 73 65 67 64 69 72 05 43 52 45 41 54 45   t1_segdir.CREATE
+|   3568: 20 54 41 42 4c 45 20 27 74 31 5f 73 65 67 64 69    TABLE 't1_segdi
+|   3584: 72 27 28 6c 65 76 65 6c 20 49 4e 54 45 47 45 52   r'(level INTEGER
+|   3600: 2c 69 64 78 20 49 4e 54 45 47 44 52 2c 73 74 61   ,idx INTEGDR,sta
+|   3616: 72 74 5f 62 6c 6f 63 6b 20 49 4e 54 45 47 45 52   rt_block INTEGER
+|   3632: 2c 6c 65 61 76 65 73 5f 65 6e 64 5f 62 6c 6f 63   ,leaves_end_bloc
+|   3648: 6b 20 49 4e 54 45 47 45 52 2c 65 6e 64 5f 62 6c   k INTEGER,end_bl
+|   3664: 6f 63 6b 20 49 4e 54 45 47 45 52 2c 72 6f 6f 74   ock INTEGER,root
+|   3680: 20 42 4c 4f 42 2c 50 52 49 4d 41 52 59 20 4b 45    BLOB,PRIMARY KE
+|   3696: 59 28 6c 65 76 65 6c 2c 20 69 64 78 29 29 31 06   Y(level, idx))1.
+|   3712: 06 17 45 1f 01 00 6a 6e 64 65 78 73 71 6c 69 74   ..E...jndexsqlit
+|   3728: 65 5f 61 75 74 6f 69 6e 64 65 78 5f 74 31 5f 73   e_autoindex_t1_s
+|   3744: 65 67 64 69 72 5f 31 74 31 5f 73 65 67 64 69 72   egdir_1t1_segdir
+|   3760: 06 0f c7 00 08 00 00 00 00 66 04 07 17 23 23 01   .........f...##.
+|   3776: 81 13 74 61 62 6c 65 74 31 5f 73 65 67 6d 65 6e   ..tablet1_segmen
+|   3792: 74 73 74 31 5f 73 65 67 6d 65 6e 74 73 03 43 52   tst1_segments.CR
+|   3808: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 73   EATE TABLE 't1_s
+|   3824: 65 67 6d 65 6e 74 73 27 28 62 6c 6f 63 6b 69 64   egments'(blockid
+|   3840: 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 5a    INTEGER PRIMARZ
+|   3856: 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42    KEY, block BLOB
+|   3872: 29 6a 03 07 17 21 21 01 81 1f 74 61 62 6c 65 74   )j...!!...tablet
+|   3888: 31 5f 63 6f 6e 74 65 6e 74 74 31 5f 63 6f 6e 74   1_contentt1_cont
+|   3904: 65 6e 74 03 43 52 45 41 54 45 20 54 41 42 4c 45   ent.CREATE TABLE
+|   3920: 20 27 74 31 5f 63 6f 6e 74 65 6e 74 27 28 64 6f    't1_content'(do
+|   3936: 63 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   cid INTEGER PRIM
+|   3952: 41 52 59 20 4b 45 59 2c 20 27 63 30 61 27 2c 20   ARY KEY, 'c0a', 
+|   3968: 27 63 31 62 27 2c 20 27 63 32 63 27 29 38 02 06   'c1b', 'c2c')8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 33   LE t1 USING fts3
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 00 00 00 00 00 00   (a,b,c).........
+| page 3 offset 8192
+|      0: 0d 00 00 00 25 0b 48 00 0f d8 0f af 0f 86 0f 74   ....%.H........t
+|     16: 0f 61 0f 4e 0f 2f 0f 0f 0e ef 0e d7 0e be 0e a5   .a.N./..........
+|     32: 0e 8d 0e 74 0e 5b 0e 40 0e 24 0e 08 0d ef 0d d5   ...t.[.@.$......
+|     48: 0d bb 0d a0 0d 84 0d 68 0d 50 0d 35 0d 1b 0c fb   .......h.P.5....
+|     64: 0c da 0c b8 fc 99 0c 78 0c 57 0c 3e 0c 24 0c 0a   .......x.W.>.$..
+|     80: 0b 48 00 00 00 00 00 00 00 00 00 00 00 00 00 00   .H..............
+|   2880: 00 00 00 00 00 00 00 00 81 3f 25 06 00 82 7f 00   .........?%.....
+|   2896: 00 43 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e   .COMPILER=gcc-5.
+|   2912: 34 2e 30 20 32 30 31 36 30 36 30 39 20 44 45 42   4.0 20160609 DEB
+|   2928: 55 47 20 45 4e 41 42 4c 45 20 44 42 53 54 7e 54   UG ENABLE DBST~T
+|   2944: 20 56 54 41 42 20 45 4e 41 42 4c 45 20 46 54 53    VTAB ENABLE FTS
+|   2960: 44 20 45 4e 41 42 4c 45 20 46 54 53 35 20 45 4e   D ENABLE FTS5 EN
+|   2976: 41 42 4c 45 20 47 45 4f 50 4f 4c 59 20 45 4e 41   ABLE GEOPOLY ENA
+|   2992: 42 4c 45 20 4a 53 4f 4e 31 20 45 4e 41 42 4c 45   BLE JSON1 ENABLE
+|   3008: 20 4d 45 4d 53 59 53 35 20 45 4e 41 42 4c 45 20    MEMSYS5 ENABLE 
+|   3024: 52 54 52 45 45 20 4d 41 58 20 4d 45 4d 4f 52 59   RTREE MAX MEMORY
+|   3040: 3d 35 30 30 30 30 30 30 30 20 4f 4d 49 54 20 4c   =50000000 OMIT L
+|   3056: 4f 41 44 20 45 58 54 45 4e 53 49 4f 4e 20 54 48   OAD EXTENSION TH
+|   3072: 52 45 41 44 53 41 46 45 3d 30 18 24 05 00 25 0f   READSAFE=0.$..%.
+|   3088: 19 54 48 52 45 41 44 54 41 46 45 3d 30 58 42 49   .THREADTAFE=0XBI
+|   3104: 4e 41 52 59 18 23 05 00 25 0f 19 54 48 52 45 41   NARY.#..%..THREA
+|   3120: 44 53 41 46 45 3d 30 bd 4e 4f 43 41 53 45 17 22   DSAFE=0.NOCASE..
+|   3136: 05 00 25 0f 17 54 48 52 45 41 44 53 41 46 45 3d   ..%..THREADSAFE=
+|   3152: 30 58 52 54 52 49 4d 1f 21 05 00 33 0f 19 4f 4d   0XRTRIM.!..3..OM
+|   3168: 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49 4e   IT LOAD EXTENSIN
+|   3184: 4e 58 42 49 4e 41 52 59 1f 20 05 00 33 0f 19 4f   NXBINARY. ..3..O
+|   3200: 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49   MIT LOAD EXTENSI
+|   3216: 4f 4e 58 4e 4f 43 41 53 45 1e 1f 05 00 33 0f 17   ONXNOCASE....3..
+|   3232: 4f 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53   OMIT LOAD EXTENS
+|   3248: 49 4f 4e 58 52 54 52 49 4d 1f 1e 05 00 33 0f 19   IONXRTRIM....3..
+|   3264: 4d 41 58 1f 4d 45 4d 4f 52 59 3d 35 30 30 30 30   MAX.MEMORY=50000
+|   3280: 30 30 30 58 42 49 4e 41 52 59 1f 1d 05 00 33 0f   000XBINARY....3.
+|   3296: 19 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30   .MAX MEMORY=5000
+|   3312: 30 30 30 30 58 4e 4f 43 41 53 45 1e 1c 05 00 33   0000XNOCASE....3
+|   3328: 0f 17 4d 41 58 20 4d 44 4d 4f 52 59 3d 35 30 30   ..MAX MDMORY=500
+|   3344: 30 30 30 30 30 58 52 54 52 49 4d 18 1b 05 00 25   00000XRTRIM....%
+|   3360: 0f 19 45 4e 41 42 4c 45 20 52 54 52 45 45 58 42   ..ENABLE RTREEXB
+|   3376: 49 4e 41 52 59 18 1a 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3392: 4c 55 20 52 54 52 45 45 58 4e 4f 43 41 53 45 17   LU RTREEXNOCASE.
+|   3408: 19 05 00 25 0f 17 45 4e 41 42 4c 45 20 52 54 52   ...%..ENABLE RTR
+|   3424: 45 45 58 52 54 52 49 4d 1a 18 05 00 29 0f 19 45   EEXRTRIM....)..E
+|   3440: 4e 41 42 4c 45 20 4d 45 4d 53 59 53 35 58 42 49   NABLE MEMSYS5XBI
+|   3456: 4e 41 52 59 1a 17 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3472: 45 20 4d 45 4d 53 59 53 35 58 4e 3f 43 41 53 45   E MEMSYS5XN?CASE
+|   3488: 19 16 05 00 29 0f 17 45 4e a1 42 4c 45 20 4d 45   ....)..EN.BLE ME
+|   3504: 4d 53 59 53 35 58 52 54 52 49 4d 18 15 05 00 25   MSYS5XRTRIM....%
+|   3520: 0f 19 45 4e 41 42 4c 45 20 4a 53 4f 4e 31 58 42   ..ENABLE JSON1XB
+|   3536: 49 4e 41 52 59 18 14 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3552: 4c 45 20 4a 53 4f 4e 31 58 4e 4f 43 41 53 45 17   LE JSON1XNOCASE.
+|   3568: 13 05 00 25 0f 17 45 4e 41 42 4c 45 20 4a 53 4f   ...%..ENABLE JSO
+|   3584: 4e 31 58 52 54 52 49 4d 1a 12 05 00 29 0f 19 45   N1XRTRIM....)..E
+|   3600: 4e 41 42 4c 45 20 47 45 4f 50 5f 4c 59 58 42 49   NABLE GEOP_LYXBI
+|   3616: 4e 41 52 59 1a 11 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3632: 45 20 47 45 4f 50 4f 4c 59 58 4b bf 43 41 53 45   E GEOPOLYXK.CASE
+|   3648: 19 10 05 00 29 0f 17 45 4e 41 42 4c 45 20 47 45   ....)..ENABLE GE
+|   3664: 4f 50 4f 4c 59 58 52 54 52 49 4d 17 0f 05 00 23   OPOLYXRTRIM....#
+|   3680: 0f 19 45 4e 41 42 4c 55 20 46 54 53 35 58 42 49   ..ENABLU FTS5XBI
+|   3696: 4e 4b a2 59 17 0e 05 00 23 0f 19 45 4e 41 42 4c   NK.Y....#..ENABL
+|   3712: 45 20 46 54 52 35 58 4e 4f 43 41 53 45 16 0d 05   E FTR5XNOCASE...
+|   3728: 00 23 0f 17 45 4e 41 42 4c 45 20 46 54 53 35 58   .#..ENABLE FTS5X
+|   3744: 52 54 52 49 4d 17 0b 05 00 23 0f 19 45 4e 41 42   RTRIM....#..ENAB
+|   3760: 4c 45 20 46 54 53 34 58 42 49 4e 41 52 59 17 0b   LE FTS4XBINARY..
+|   3776: 05 00 23 0f 19 45 4e 41 42 4c 45 20 46 54 53 34   ..#..ENABLE FTS4
+|   3792: 58 4e 4f 43 41 53 45 16 0a 05 00 23 0f 17 45 4e   XNOCASE....#..EN
+|   3808: 41 42 4c 45 20 46 54 53 34 58 52 54 52 49 4d 1e   ABLE FTS4XRTRIM.
+|   3824: 09 05 07 e1 0f 19 45 4e 41 42 4c 45 20 44 42 53   ......ENABLE DBS
+|   3840: 54 41 54 20 56 54 41 42 58 42 49 4e 41 52 59 1e   TAT VTABXBINARY.
+|   3856: 18 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3872: 54 41 54 20 56 54 41 41 18 4e 4f 43 41 53 45 1d   TAT VTAA.NOCASE.
+|   3888: 07 05 00 31 0f 17 45 4e 41 42 4c 45 20 44 32 53   ...1..ENABLE D2S
+|   3904: 54 41 54 20 56 54 41 42 58 52 54 52 49 4d 11 06   TAT VTABXRTRIM..
+|   3920: 05 00 17 0f 19 44 45 42 55 47 58 42 49 4e 41 52   .....DEBUGXBINAR
+|   3936: 59 11 05 05 00 17 0f 19 44 45 00 00 00 00 00 00   Y.......DE......
+| page 5 offset 16384
+|      0: 0d 00 00 00 02 0b a0 00 0c ad 0b a0 01 00 00 00   ................
+|   2976: 82 0a 02 08 08 09 08 08 17 84 06 30 20 32 35 33   ...........0 253
+|   2992: 00 01 30 04 25 06 1b 00 00 08 32 30 31 36 30 36   ..0.%.....201606
+|   3008: 30 38 03 25 07 00 00 01 34 03 25 05 00 00 01 35   08.%....4.%....5
+|   3024: 03 25 13 00 01 07 30 30 30 30 30 30 30 03 25 1a   .%....0000000.%.
+|   3040: 00 00 08 63 6f 6d 70 69 6c 65 72 03 25 02 00 00   ...compiler.%...
+|   3056: 06 64 62 73 74 61 74 03 25 0a 00 01 04 65 62 75   .dbstat.%....ebu
+|   3072: 67 03 25 08 00 00 06 65 6e 61 62 6c 65 09 25 09   g.%....enable.%.
+|   3088: 05 04 04 04 04 04 00 01 08 78 74 65 6e 73 69 6f   .........xtensio
+|   3104: 6e 03 25 1d 00 00 04 66 74 73 34 03 25 0d 00 03   n.%....fts4.%...
+|   3120: 01 35 03 25 0f 00 00 03 67 63 63 03 25 03 00 01   .5.%....gcc.%...
+|   3136: 06 65 6f 70 6f 6c 79 03 25 11 00 00 05 6a 73 6f   .eopoly.%....jso
+|   3152: 6e 31 03 25 13 00 00 04 6c 6f 61 64 03 25 1c 00   n1.%....load.%..
+|   3168: 00 03 6d 62 78 03 25 18 00 01 05 65 6d 6f 72 79   ..mbx.%....emory
+|   3184: 03 25 19 00 03 04 73 c8 73 35 03 25 15 00 00 04   .%....s.s5.%....
+|   3200: 6f 6d 69 74 03 25 1b 00 00 05 72 74 72 65 65 03   omit.%....rtree.
+|   3216: 25 17 00 00 0a 74 68 72 65 61 64 73 61 66 65 03   %....threadsafe.
+|   3232: 25 1e 00 00 04 76 74 61 62 03 25 0b 00 86 50 01   %....vtab.%...P.
+|   3248: 08 08 08 08 08 17 8d 12 30 20 38 33 35 00 01 30   ........0 835..0
+|   3264: 12 01 06 00 01 06 00 01 06 00 1f 03 00 01 03 00   ................
+|   3280: 01 03 00 00 08 32 30 31 36 30 36 30 39 09 01 07   .....20160609...
+|   3296: 00 01 07 00 01 07 00 00 01 34 09 01 05 00 01 05   .........4......
+|   3312: 00 01 05 00 00 01 35 09 01 04 00 01 04 00 02 04   ......5.........
+|   3328: 00 01 07 30 2f 30 30 30 30 30 09 1c 04 00 01 04   ...0/00000......
+|   3344: 00 01 04 00 00 06 62 69 6e 61 72 79 3c 03 01 02   ......binary<...
+|   3360: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3376: 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00   ................
+|   3392: 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03   ................
+|   3408: 01 02 02 00 03 01 02 02 00 00 08 63 6f 6d 70 69   ...........compi
+|   3424: 6c 65 72 09 01 02 00 01 02 00 01 02 00 00 06 64   ler............d
+|   3440: 62 73 74 61 74 09 07 03 00 01 03 00 01 03 00 01   bstat...........
+|   3456: 04 65 62 75 67 09 04 02 00 01 02 00 01 02 00 00   .ebug...........
+|   3472: 06 65 6e 61 6c 2c 65 3f 07 02 00 01 02 00 01 02   .enal,e?........
+|   3488: 00 01 02 00 01 02 00 01 02 00 01 02 00 01 02 00   ................
+|   3504: 01 02 00 01 02 00 01 02 00 01 01 ff f1 02 00 01   ................
+|   3520: 02 00 01 02 00 01 02 00 f1 02 00 01 02 00 01 4f   ...............O
+|   3536: 00 01 02 00 01 02 00 01 08 78 74 65 6e 73 69 6f   .........xtensio
+|   3552: 6e 09 1f 04 00 01 04 00 01 04 00 00 04 66 74 73   n............fts
+|   3568: 34 09 0a 03 00 01 03 00 00 f3 00 03 01 35 09 0d   4............5..
+|   3584: 03 00 01 04 00 01 03 00 00 03 67 63 63 09 01 03   ..........gcc...
+|   3600: 00 01 03 00 01 03 00 01 06 65 6f 70 6f 6c 79 09   .........eopoly.
+|   3616: 10 03 00 01 03 00 01 03 00 00 05 6a 73 6f 6e 31   ...........json1
+|   3632: 09 13 03 00 01 02 ff 01 03 00 00 04 6c 6f 61 63   ............loac
+|   3648: 09 1f 03 00 01 03 00 01 03 00 00 03 6d 61 78 09   ............max.
+|   3664: 1c 02 00 01 02 00 01 02 00 01 05 64 6d 6f 72 79   ...........dmory
+|   3680: 09 1c 03 00 01 03 00 01 03 00 03 04 73 79 73 35   ............sys5
+|   3696: 09 16 02 f0 01 03 00 01 03 00 00 06 6e 6f 63 61   ............noca
+|   3712: 73 65 3c 02 01 02 02 00 03 01 02 02 00 03 01 02   se<.............
+|   3728: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3744: 00 03 01 02 02 00 03 01 02 02 00 4b 01 02 02 00   ...........K....
+|   3760: 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00 00   ................
+|   3776: 04 6f 6d 69 74 09 1f 02 00 01 02 00 01 02 00 00   .omit...........
+|   3792: 05 72 74 72 65 65 09 19 03 00 01 03 00 01 03 00   .rtree..........
+|   3808: 03 02 69 6d 3c 01 01 02 02 00 03 01 02 02 00 03   ..im<...........
+|   3824: 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01   ................
+|   3840: 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02   ................
+|   3856: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3872: 00 00 0a 74 68 72 65 61 64 73 61 66 65 09 22 02   ...threadsafe...
+|   3888: 00 01 02 00 01 02 00 00 04 76 74 61 62 09 07 04   .........vtab...
+|   3904: 00 01 04 00 01 04 00 00 01 78 b4 01 01 01 01 02   .........x......
+|   3920: 00 01 f4 01 02 00 01 02 01 02 00 01 01 01 02 ff   ................
+|   3936: 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01   ................
+|   3952: 01 01 02 ae 01 01 01 02 00 01 01 01 02 00 01 01   ................
+|   3968: 01 12 00 01 01 01 02 00 01 01 01 02 00 01 01 01   ................
+|   3984: 12 00 01 01 01 02 01 01 01 01 02 00 01 01 01 02   ................
+|   4000: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+|   4016: 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01   ................
+|   4032: 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01   ................
+|   4048: 01 02 00 01 01 01 02 00 01 76 01 02 00 01 01 01   .........v......
+|   4064: 02 00 01 01 01 02 01 01 01 01 02 00 01 01 01 02   ................
+|   4080: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 02 0f f5 00 0f fb 0f f5 00 00 00 00   ................
+|   4080: 00 00 00 00 00 05 04 08 09 01 02 04 04 08 08 09   ................
+| end crash-74fdbc96edbc04.db
+}]} {}
+
+do_catchsql_test 32.1 {
+  UPDATE t1 SET b=quote(zeroblob(6.51158946e+5)) WHERE a MATCH '*t*';
+} {1 {database disk image is malformed}}
+
+#do_catchsql_test 32.2 {
+#  UPDATE t1 SET b=((- '' )) WHERE a MATCH '0*t';
+#} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+#
+ifcapable icu {
+  reset_db
+  do_catchsql_test 33.0 {
+    CREATE VIRTUAL TABLE f USING fts3(a,b,tokenize=icu);
+    CREATE TABLE 'f_docsize'(docid INTEGER PRIMARY KEY, size BLOB);
+    CREATE TABLE 'f_stat'(id INTEGER PRIMARY KEY, value BLOB);
+    INSERT INTO f VALUES (1, '1234');
+    INSERT INTO f_stat VALUES (1,x'0000000165656565db6569746565c5c52bc5c5c53e3a003bc502ffffffffc5c5c53e3a003bc502fffffffffb8b2afbfb6565f0740100650000000165656565db6569746565c5c52bc5c5c53e3a003bc502ffffffffc5c5c53e3a003b8b00c5c5c5c5c5bfc5');
+    INSERT INTO f(f) VALUES ('merge=198,49');
+  } {1 {database disk image is malformed}}
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 34.0 {
+  CREATE VIRTUAL TABLE f USING fts3(a,b);
+  INSERT INTO f VALUES (1, '1234');
+  INSERT INTO f_segdir VALUES (1,255,0,0,'1 255',x'00');
+  UPDATE f_segdir SET level = 0 WHERE level IN (
+    SELECT level FROM f_segdir LIMIT 1 OFFSET 1
+  );
+  INSERT INTO f_segdir VALUES (255,249,0,121,'0 0',x'00');
+  INSERT INTO f_content VALUES (255,0,x'ff');
+  INSERT INTO f_segdir VALUES (1,255,16,0,'1 255',x'00');
+}
+
+do_catchsql_test 34.1 {
+  UPDATE f SET b = x'00' WHERE b IN (SELECT b FROM f LIMIT 1 OFFSET 0);
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 35.0 {
+  CREATE VIRTUAL TABLE f USING fts3(a,b);
+  INSERT INTO f_segdir VALUES (1,255,0,0,'1 255',x'0001ff000001ff000001ff000001ff000001ff00c5c5c5c5c5c5c5c5c5c5c5c5c5c5c5c5c5c5c5c5c5c5c5c5c5c5bec5c5c5c5c5c5c5c5c5c5c5c5c5c5c5c5c5');
+}
+
+do_catchsql_test 35.1 {
+  INSERT INTO f(f) VALUES ('integrity-check');
+} {1 {database disk image is malformed}}
+do_execsql_test 35.2 {
+  PRAGMA integrity_check;
+} {{malformed inverted index for FTS3 table main.f}}
+
+reset_db
+do_catchsql_test 36.0 {
+  CREATE VIRTUAL TABLE f USING fts3(a,tokenize=porter);
+  CREATE TABLE 'f_stat'(id INTEGER PRIMARY KEY, value BLOB);
+  INSERT INTO f VALUES (1);
+  INSERT INTO f_stat VALUES (1,x'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');
+  INSERT INTO f(f) VALUES ('merge=53,216');
+} {0 {}}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 36.0 {
+  CREATE VIRTUAL TABLE f USING fts3(a,b);
+  CREATE TABLE 'f_stat'(id INTEGER PRIMARY KEY, value BLOB);
+  INSERT INTO f_stat VALUES (1,x'11014101000101c5c5014b010164c5014b010101c50101c5c5010201010101014101000101c5c5014b010101c5014b010101c50101c5c501010100c50101c5c5010101010101e40201010101014101000201010101014101000101010201010101014101000101c5c503b5fefefe3afeffffc5c5c5c50101010101010201010101014101adadadadadadadadadadadad91adadadadadadadad0101c50101c5c501f9ffffffffffffffff0001010102010101010140f5000101c5c5014b010101c50101c5c501010101e6010201010101014101000101c5c5014b010101c50101c5c5010101114b0101c5c50101010a0101020101e60101');
+}
+
+do_catchsql_test 36.1 {
+  INSERT INTO f(f) VALUES ('merge=59,59');
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 37.0 {
+  CREATE VIRTUAL TABLE f USING fts3(a,b);
+  INSERT INTO f_segdir VALUES (28,0,0,0,'0 0',x'00');
+  INSERT INTO f_segdir VALUES (0,241,0,0,'0 0',x'0001000030310000f1');
+}
+
+do_catchsql_test 37.1 {
+  INSERT INTO f VALUES (0,x'00');
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_test 38.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 24576 pagesize 4096 filename crash-1cc4f8a70485ce.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 00   .....@  ........
+|     96: 00 00 00 00 0d 0e b1 00 06 0d a4 00 0f 8d 0f 21   ...............!
+|    112: 0e b9 0d c8 0e 7e 0d a4 00 00 00 00 00 00 00 00   .....~..........
+|   3488: 00 00 00 00 22 07 06 17 11 11 01 31 74 61 62 6c   ...........1tabl
+|   3504: 65 74 32 74 32 07 43 52 45 41 54 45 20 54 41 42   et2t2.CREATE TAB
+|   3520: 4c 45 20 74 32 28 78 29 81 33 05 07 17 1f 1f 01   LE t2(x).3......
+|   3536: 82 35 74 61 62 6c 65 74 31 5f 73 65 67 64 69 72   .5tablet1_segdir
+|   3552: 74 31 5f 73 65 67 64 69 72 05 43 52 45 41 54 45   t1_segdir.CREATE
+|   3568: 20 54 41 42 4c 45 20 27 74 31 5f 73 65 67 64 69    TABLE 't1_segdi
+|   3584: 72 27 28 6c 65 76 65 6c 20 49 4e 54 45 47 45 52   r'(level INTEGER
+|   3600: 2c 69 64 78 20 49 4e 54 45 47 45 52 2c 73 74 61   ,idx INTEGER,sta
+|   3616: 72 74 5f 62 6c 6f 63 6b 20 49 4e 54 45 47 45 52   rt_block INTEGER
+|   3632: 2c 6c 65 61 76 65 73 5f 65 6e 64 5f 62 6c 6f 63   ,leaves_end_bloc
+|   3648: 6b 20 49 4e 54 45 47 45 52 2c 65 6e 64 5f 62 6c   k INTEGER,end_bl
+|   3664: 6f 63 6b 20 49 4e 54 45 47 45 62 2c 72 6f 6f 74   ock INTEGEb,root
+|   3680: 20 42 4c 4f 42 2c 50 52 49 4d 41 52 59 20 4b 45    BLOB,PRIMARY KE
+|   3696: 59 28 6c 65 76 65 6c 2c 20 69 64 78 29 29 31 06   Y(level, idx))1.
+|   3712: 06 17 45 1f 01 00 69 6e 64 65 78 73 71 6c 69 74   ..E...indexsqlit
+|   3728: 65 5f 61 75 74 6f 69 6e 64 65 78 5f 74 31 5f 73   e_autoindex_t1_s
+|   3744: 65 67 64 69 72 5f 31 74 31 5f 73 65 67 64 69 72   egdir_1t1_segdir
+|   3760: 06 0f c7 00 08 00 00 00 00 66 04 07 17 23 23 01   .........f...##.
+|   3776: 81 13 74 61 62 6c 65 74 31 5f 73 65 67 6d 65 6e   ..tablet1_segmen
+|   3792: 74 73 74 31 5f 73 65 67 6d 65 6e 74 73 04 43 52   tst1_segments.CR
+|   3808: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 73   EATE TABLE 't1_s
+|   3824: 65 67 6d 65 6e 74 73 27 28 62 6c 6f 63 6b 69 64   egments'(blockid
+|   3840: 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59    INTEGER PRIMARY
+|   3856: 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42    KEY, block BLOB
+|   3872: 29 6a 03 07 17 21 21 01 81 1f 74 61 62 6c 65 74   )j...!!...tablet
+|   3888: 31 5f 63 6f 6e 74 65 6e 74 74 31 5f 63 6f 6e 74   1_contentt1_cont
+|   3904: 65 6e 74 03 43 52 45 41 54 45 20 54 41 42 4c 45   ent.CREATE TABLE
+|   3920: 20 27 74 31 5f 63 6f 6e 74 65 6e 74 27 28 64 6f    't1_content'(do
+|   3936: 63 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   cid INTEGER PRIM
+|   3952: 41 52 59 20 4b 45 59 2c 20 27 63 30 61 27 2c 20   ARY KEY, 'c0a', 
+|   3968: 27 63 31 62 27 2c 20 27 63 32 63 27 29 38 02 06   'c1b', 'c2c')8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 33   LE t1 USING fts3
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 00 00 00 00 00 00   (a,b,c).........
+| page 3 offset 8192
+|      0: 0d 00 00 00 25 0b 48 00 0f d8 0f af 0f 86 0f 74   ....%.H........t
+|     16: 0f 61 0f 4e 0f 2f 0f 0f 0e ef 0e d7 0e be 0e a5   .a.N./..........
+|     32: 0e 8d 0e 74 0e 5b 0e 40 0e 24 0e 08 0d ef 00 00   ...t.[.@.$......
+|   2880: 00 00 00 00 00 00 00 00 81 3f 25 06 00 82 7e f0   .........?%...~.
+|   2896: 00 43 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e   .COMPILER=gcc-5.
+|   2912: 34 23 00 20 42 30 31 36 2f 36 30 39 20 44 45 42   4#. B016/609 DEB
+|   2928: 55 47 20 45 4e 41 42 4c 45 20 44 42 53 54 41 54   UG ENABLE DBSTAT
+|   2944: 20 56 54 41 42 20 45 4e 42 92 4c 45 20 46 54 53    VTAB ENB.LE FTS
+|   2960: 34 20 45 4e 41 42 4c 45 20 46 54 53 35 20 45 4e   4 ENABLE FTS5 EN
+|   2976: 41 42 4c 45 20 47 45 4f 50 4f 4c 59 20 45 4e 41   ABLE GEOPOLY ENA
+|   2992: 42 5c 45 1f 4a 53 4f 4e 31 20 45 4e 41 42 4c 45   B.E.JSON1 ENABLE
+|   3008: 20 4d 45 4d 53 59 53 35 20 45 4e 41 42 4c 45 20    MEMSYS5 ENABLE 
+|   3024: 52 54 52 45 45 20 4d 41 58 20 4d 45 4d 4f 52 59   RTREE MAX MEMORY
+|   3040: 3d 35 30 30 30 30 30 30 30 20 4f 4d 49 54 20 4c   =50000000 OMIT L
+|   3056: 4f 41 44 20 45 58 54 45 4e 53 49 4f 4e 20 54 48   OAD EXTENSION TH
+|   3072: 52 45 41 44 53 41 46 45 3d 30 18 24 05 00 25 0f   READSAFE=0.$..%.
+|   3088: 19 54 48 52 45 41 44 53 41 46 45 3d 30 58 42 49   .THREADSAFE=0XBI
+|   3104: 4e 41 52 59 18 23 05 00 25 0f 19 54 48 52 45 41   NARY.#..%..THREA
+|   3120: 44 53 41 46 45 3d 30 88 4e 4f 43 41 53 45 17 22   DSAFE=0.NOCASE..
+|   3136: 05 00 25 0f 17 54 48 52 45 41 44 53 41 46 45 3d   ..%..THREADSAFE=
+|   3152: 30 58 52 54 52 49 4d 1f 21 05 00 33 0f 19 4f 4d   0XRTRIM.!..3..OM
+|   3168: 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49 4f   IT LOAD EXTENSIO
+|   3184: 4e 58 42 49 4e 41 52 59 1f 20 05 00 33 0f 19 4f   NXBINARY. ..3..O
+|   3200: 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49   MIT LOAD EXTENSI
+|   3216: 4f 4e 58 4e 4f 43 41 53 45 1e 1f 05 00 33 0f 17   ONXNOCASE....3..
+|   3232: 4f 4d 49 54 20 4c 4f 41 54 20 45 58 54 45 4e 53   OMIT LOAT EXTENS
+|   3248: 49 4f 4e 58 52 54 52 49 4d 1f 1e 04 00 33 0f 19   IONXRTRIM....3..
+|   3264: 82 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30 30   .AX MEMORY=50000
+|   3280: 30 30 30 58 42 49 4e 41 52 59 1f 1d 05 00 33 0f   000XBINARY....3.
+|   3296: 19 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30   .MAX MEMORY=5000
+|   3312: 30 30 30 30 58 4e 4f 43 41 53 45 1e 1c 05 00 33   0000XNOCASE....3
+|   3328: 0f 17 4d 41 58 20 4d 45 4d fa 52 59 3d 35 30 20   ..MAX MEM.RY=50 
+|   3344: 30 30 30 30 30 58 52 54 52 49 4d 18 1b 05 00 25   00000XRTRIM....%
+|   3360: 0f 19 45 4e 41 42 4c 45 20 52 54 52 45 45 58 42   ..ENABLE RTREEXB
+|   3376: 49 4e 41 52 59 18 1a 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3392: 4c 45 20 52 54 52 45 45 58 4e 4f 43 41 53 45 17   LE RTREEXNOCASE.
+|   3408: 19 05 00 25 0f 17 45 4e 42 42 4c 45 20 52 54 52   ...%..ENBBLE RTR
+|   3424: 45 45 58 52 54 52 49 4d 1a 18 05 00 29 0f 19 45   EEXRTRIM....)..E
+|   3440: 4e 41 42 4c 45 20 4d 45 4d 53 59 53 35 58 42 49   NABLE MEMSYS5XBI
+|   3456: 4e 41 52 59 1a 17 05 00 29 0f 19 45 4e 41 42 3c   NARY....)..ENAB<
+|   3472: 45 20 4d 45 4d 53 59 53 35 58 4e 4f 43 41 53 45   E MEMSYS5XNOCASE
+|   3488: 19 16 05 00 29 0f 17 45 4e 41 42 4c 45 20 4d 45   ....)..ENABLE ME
+|   3504: 4d 53 59 53 35 58 52 54 52 49 4d 18 15 05 00 25   MSYS5XRTRIM....%
+|   3520: 0f 19 45 4e 41 42 4c 45 20 4a 53 4f 4e 31 58 42   ..ENABLE JSON1XB
+|   3536: 49 4e 41 52 59 18 14 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3552: 4c 45 20 4a 53 4f 4e 31 58 4e 4f 43 41 53 45 17   LE JSON1XNOCASE.
+|   3568: 13 05 00 25 0f 17 45 4e 41 42 4c 45 20 4a 53 4f   ...%..ENABLE JSO
+|   3584: 4e 31 58 52 54 52 49 4d 95 12 05 00 29 0f 19 45   N1XRTRIM....)..E
+|   3600: 4e 31 42 4c 45 20 47 45 4e 50 4f 4c 59 58 42 49   N1BLE GENPOLYXBI
+|   3616: 4e 41 52 59 1a 11 05 00 29 0f 19 45 3e f2 1e 4c   NARY....)..E>..L
+|   3632: 45 20 47 45 4f 50 4f 4c 59 58 4e 4f 43 41 53 45   E GEOPOLYXNOCASE
+|   3648: 19 10 05 00 29 0f 17 45 4e 41 42 4c 45 20 47 45   ....)..ENABLE GE
+|   3664: 4f 50 4f 4c 59 58 52 54 52 49 4d 17 0f 05 00 23   OPOLYXRTRIM....#
+|   3680: 0f 19 45 4e 41 42 4c 45 20 46 54 53 35 58 42 49   ..ENABLE FTS5XBI
+|   3696: 4e 41 52 59 17 0e 05 00 23 0f 19 45 4e 41 42 3c   NARY....#..ENAB<
+|   3712: 45 20 46 54 53 35 58 4e 4f 43 41 53 45 16 0d 05   E FTS5XNOCASE...
+|   3728: 00 23 0f 17 45 4e 41 42 4c 45 20 46 54 53 35 58   .#..ENABLE FTS5X
+|   3744: 5d 24 52 49 4d 17 0c 05 00 23 0f 19 45 4e 41 42   ]$RIM....#..ENAB
+|   3760: 4c 45 20 46 54 53 34 58 42 49 4e 41 52 59 17 0b   LE FTS4XBINARY..
+|   3776: 05 00 23 0f 19 45 4e 41 42 4c 45 20 46 54 53 35   ..#..ENABLE FTS5
+|   3792: 58 4e 4f 43 40 53 45 16 0a 05 00 23 0f 17 45 4e   XNOC@SE....#..EN
+|   3808: 41 42 4c 45 20 46 54 53 34 58 52 54 52 49 4d 1e   ABLE FTS4XRTRIM.
+|   3824: 09 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3840: 54 41 54 20 56 54 41 42 58 42 49 4e 41 52 59 1e   TAT VTABXBINARY.
+|   3856: 08 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3872: 54 41 54 20 56 54 41 42 58 4e 4f 43 41 53 45 1d   TAT VTABXNOCASE.
+|   3888: 07 05 00 31 0f 17 45 4e 41 42 4b 45 20 44 42 53   ...1..ENABKE DBS
+|   3904: 54 41 54 20 56 53 41 42 58 52 54 62 49 4d 11 06   TAT VSABXRTbIM..
+|   3920: 05 00 17 0f 19 44 45 42 54 47 58 42 49 4e 41 52   .....DEBTGXBINAR
+|   3936: 59 11 05 05 00 17 0f 19 44 45 42 55 47 58 4e 4f   Y.......DEBUGXNO
+|   3952: 43 41 53 45 10 04 05 00 17 0f 17 44 45 42 55 47   CASE.......DEBUG
+|   3968: 68 52 54 52 49 4d 27 03 05 00 43 0f 19 43 4f 4d   hRTRIM'...C..COM
+|   3984: 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e 30 20   PILER=gcc-5.4.0 
+|   4000: 32 30 31 36 30 36 30 39 58 42 49 4e 41 52 59 27   20160609XBINARY'
+|   4016: 02 05 00 43 0f 19 43 4f 4d 50 49 4c 45 52 3d 67   ...C..COMPILER=g
+|   4032: 63 63 2d 35 2e 34 2e 30 20 32 30 31 36 30 36 30   cc-5.4.0 2016060
+|   4048: 39 58 4f 4f 43 41 53 45 26 01 05 00 43 0f 17 43   9XOOCASE&...C..C
+|   4064: 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e   OMPILER=gcc-5.4.
+|   4080: 30 20 32 30 31 36 30 36 30 39 58 52 54 52 49 4d   0 20160609XRTRIM
+| page 4 offset 12288
+|      0: 0d 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+| page 5 offset 16384
+|      0: 0d 00 00 00 02 0b a0 00 0c ad 0b a0 00 00 00 00   ................
+|   2976: 82 0a 02 08 08 09 08 08 17 84 06 30 20 32 35 33   ...........0 253
+|   2992: 00 01 30 04 25 06 1b 00 00 08 32 30 31 36 8c 36   ..0.%.....2016.6
+|   3008: 30 39 03 25 07 00 00 01 34 03 25 05 00 00 01 35   09.%....4.%....5
+|   3024: 03 25 04 00 01 07 30 30 30 30 30 30 30 03 25 1a   .%....0000000.%.
+|   3040: 00 00 08 63 6f 5d 70 69 6c 65 72 03 25 02 00 00   ...co]piler.%...
+|   3056: 06 64 62 73 74 61 74 03 25 0a 00 01 04 65 62 75   .dbstat.%....ebu
+|   3072: 67 03 25 08 00 00 06 65 6e 61 62 6c 65 09 25 09   g.%....enable.%.
+|   3088: 05 04 04 04 04 04 00 01 08 78 74 65 7e 73 69 6f   .........xte~sio
+|   3104: 6e 03 25 1d 00 00 04 66 74 73 34 03 25 0d 00 03   n.%....fts4.%...
+|   3120: 01 35 03 25 0f 00 00 03 67 63 63 03 25 03 00 01   .5.%....gcc.%...
+|   3136: 06 65 6f 70 7f 6c 79 03 25 11 00 00 05 6a 73 6f   .eop.ly.%....jso
+|   3152: 6e 31 03 25 14 00 e8 04 6c 6f 61 64 03 25 1c 00   n1.%....load.%..
+|   3168: 00 03 6d 61 78 03 25 18 00 01 05 65 6d 6f 72 79   ..max.%....emory
+|   3184: 03 25 19 00 03 04 73 79 73 35 03 25 15 00 00 04   .%....sys5.%....
+|   3200: 6f 6d 69 74 03 25 1b 00 00 05 72 74 72 65 65 03   omit.%....rtree.
+|   3216: 25 17 00 00 0a 74 68 72 65 61 64 73 61 66 65 03   %....threadsafe.
+|   3232: 25 1e 00 00 04 76 74 61 62 03 25 0b 00 86 50 01   %....vtab.%...P.
+|   3248: 08 08 08 08 08 17 8d 12 30 20 38 33 35 00 01 30   ........0 835..0
+|   3264: 12 01 06 00 01 06 00 01 06 00 1f 03 00 01 03 00   ................
+|   3280: 01 03 00 00 08 32 30 31 36 30 36 30 39 09 01 07   .....20160609...
+|   3296: 00 01 07 00 01 07 00 00 01 34 09 01 05 00 01 05   .........4......
+|   3312: 00 01 05 00 00 01 35 09 01 04 00 01 04 00 01 04   ......5.........
+|   3328: 00 01 07 30 30 30 30 30 30 30 09 1c 04 00 01 04   ...0000000......
+|   3344: 00 01 04 00 00 06 62 69 6e 61 72 79 3c 03 01 02   ......binary<...
+|   3360: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3376: 00 03 01 02 c2 00 03 01 02 02 00 03 01 04 82 00   ................
+|   3392: 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03   ................
+|   3408: 01 02 02 00 03 01 02 02 00 00 08 63 6f 6d 70 69   ...........compi
+|   3424: 6c 65 72 09 01 02 00 01 02 00 01 02 00 00 06 64   ler............d
+|   3440: 62 73 74 61 74 09 07 03 00 01 03 00 01 03 00 01   bstat...........
+|   3456: 04 65 62 75 67 09 04 02 00 01 02 00 01 02 00 00   .ebug...........
+|   3472: 06 65 6e 60 62 6c 65 3f 07 02 00 01 02 92 e1 a4   .en`ble?........
+|   3488: ff fc a2 8c 95 b2 3f 01 01 f0 f1 02 00 57 02 00   ......?......W..
+|   3504: 01 02 00 01 02 00 01 02 00 01 02 00 01 02 10 01   ................
+|   3520: 02 00 01 02 00 01 02 00 01 02 01 01 02 00 01 02   ................
+|   3536: 00 01 02 00 00 f2 00 01 08 78 74 65 6e 73 69 6f   .........xtensio
+|   3552: 6e 09 1f 04 00 01 04 00 01 04 00 00 04 66 74 73   n............fts
+|   3568: 34 09 0a 03 00 01 03 00 01 03 00 03 01 35 09 0d   4............5..
+|   3584: 03 00 01 03 00 01 03 00 00 03 67 63 63 09 01 03   ..........gcc...
+|   3600: 00 01 03 00 01 03 00 01 06 65 5f 70 6f 6c 79 09   .........e_poly.
+|   3616: 10 03 00 01 03 00 01 03 00 00 b3 6a 73 6f 6e 31   ...........json1
+|   3632: 09 13 03 00 01 03 00 01 03 00 00 04 6c 6f 61 64   ............load
+|   3648: 09 1f 03 00 01 03 00 01 03 00 00 03 6d 61 78 09   ............max.
+|   3664: 1c 02 00 01 02 00 01 02 00 01 05 65 6d 6f 72 79   ...........emory
+|   3680: 09 1c 03 00 01 03 00 01 03 00 03 04 73 79 73 35   ............sys5
+|   3696: 09 16 03 00 01 03 00 01 03 cc 00 06 6e 6f 63 61   ............noca
+|   3712: 73 65 3c 02 01 02 02 00 03 01 02 02 00 03 01 02   se<.............
+|   3728: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3744: 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00   ................
+|   3760: 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00 00   ................
+|   3776: 04 6f 6d 69 74 09 1f 02 00 01 02 00 01 02 00 00   .omit...........
+|   3792: 05 72 74 62 65 65 09 19 03 00 01 03 00 01 03 00   .rtbee..........
+|   3808: 03 02 69 6d 3c 01 01 02 02 00 03 01 02 02 00 03   ..im<...........
+|   3824: 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01   ................
+|   3840: 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02   ................
+|   3856: 02 00 03 01 02 02 00 03 01 02 01 00 03 01 02 02   ................
+|   3872: 00 00 0a 74 68 72 65 61 64 73 61 66 65 09 22 02   ...threadsafe...
+|   3888: 00 01 02 00 02 02 00 00 04 76 74 61 62 09 07 04   .........vtab...
+|   3904: 00 01 03 00 01 04 00 00 01 78 b4 01 01 01 01 02   .........x......
+|   3920: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+|   3936: 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01   ................
+|   3952: 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01   ................
+|   3968: 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01   ................
+|   3984: 02 01 01 01 01 02 00 01 01 01 02 00 01 01 01 02   ................
+|   4000: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+|   4016: 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01   ................
+|   4032: 01 01 02 00 01 01 01 da 00 00 f1 01 02 00 01 01   ................
+|   4048: 01 02 00 01 01 01 01 ff ff 01 01 02 00 01 01 01   ................
+|   4064: 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02   ................
+|   4080: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 02 0f f5 00 0f fb 0f f5 01 00 00 00   ................
+|   4080: 00 00 00 00 00 05 04 08 09 01 02 04 04 08 08 09   ................
+| end crash-1cc4f8a70485ce.db
+}]} {}
+
+do_execsql_test 38.1 {
+  UPDATE t1 SET b=a;
+}
+
+do_catchsql_test 38.2 {
+  SELECT b FROM t1 WHERE a MATCH 'e*e*e*e*e*e*e*e*e*e*e*e*e*e*e*e*'
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+set saved $sqlite_fts3_enable_parentheses
+set sqlite_fts3_enable_parentheses 1
+do_execsql_test 39.0 {
+  CREATE VIRTUAL TABLE t0 USING fts3(
+    col0 INTEGER PRIMARY KEY,
+    col1 VARCHAR(8),
+    col2 BINARY,
+    col3 BINARY
+  );
+  INSERT INTO t0_content VALUES(1,1,'1234','aaaa','bbbb');
+  INSERT INTO t0_segdir VALUES(0,0,0,0,'0 42',X'000131030782000103323334050101010200000461616161050101020200000462626262050101030200');
+}
+
+do_test 39.1 {
+  catch {
+    db eval { SELECT rowid FROM t0 WHERE t0 MATCH '1 NEAR 1' }
+  }
+} 0
+
+do_test 39.2 {
+  catch {
+    db eval {
+  SELECT matchinfo(t0,'yxy') FROM t0 WHERE t0 MATCH x'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';
+    }
+  }
+} 0
+set sqlite_fts3_enable_parentheses $saved
+
+#-------------------------------------------------------------------------
+reset_db
+set saved $sqlite_fts3_enable_parentheses
+set sqlite_fts3_enable_parentheses 1
+
+do_execsql_test 40.1 {
+
+  CREATE VIRTUAL TABLE t0 USING fts3(col0 INTEGER PRIMARY KEY, col1, col2 ,col3 );
+  INSERT INTO t0_segdir VALUES(0,0,0,0,'0 42',
+      X'0001310301020001033233340500010102000004616161bc050101020200000462626262050101030200'
+  );
+}
+
+do_execsql_test 40.2 {
+  SELECT 0==matchinfo(t0,'sx') FROM t0 WHERE t0 MATCH '1* 2 3 4 5 6 OR 1';
+} 0
+
+set sqlite_fts3_enable_parentheses $saved
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 41.1 {
+  CREATE VIRTUAL TABLE t1 USING fts3(a,b,c);
+  INSERT INTO t1_segdir VALUES(0,0,0,0,'0 835',X'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');
+}
+
+do_execsql_test 41.2 {
+  SELECT offsets(t1) FROM t1 WHERE t1 MATCH 'rtree ner "json1^enable"';
+}
+
+#-------------------------------------------------------------------------
+do_execsql_test 42.1 {
+  CREATE VIRTUAL TABLE f USING fts3(a, b);
+}
+do_execsql_test 42.2 {
+  INSERT INTO f_segdir VALUES(0,2,1111,0,0,X'00');
+  INSERT INTO f_segdir VALUES(0,3,0   ,0,0,X'00013003010200');
+}
+do_execsql_test 42.3 {
+  INSERT INTO f(f) VALUES ('merge=107,2');
+}
+
+#-------------------------------------------------------------------------
+reset_db
+set saved $sqlite_fts3_enable_parentheses
+set sqlite_fts3_enable_parentheses 1
+do_execsql_test 43.1 {
+  CREATE VIRTUAL TABLE def USING fts3(xyz);
+  INSERT INTO def_segdir VALUES(0,0,0,0,0, X'0001310301c9000103323334050d81');
+} {}
+
+do_execsql_test 43.2 {
+  SELECT rowid FROM def WHERE def MATCH '1 NEAR 1'
+} {1}
+
+set sqlite_fts3_enable_parentheses $saved
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 44.1 {
+  CREATE VIRTUAL TABLE t0 USING fts3(col0 INTEGER PRIMARY KEY,col1 VARCHAR(8),col2 BINARY,col3 BINARY);
+  INSERT INTO t0_content VALUES(0,NULL,NULL,NULL,NULL);
+  INSERT INTO t0_segdir VALUES(0,0,0,0,'0 42',X'00013103010200010332333405010201ba00000461616161050101020200000462626262050101030200');
+}
+
+do_execsql_test 44.2 {
+  SELECT matchinfo(t0, t0) IS NULL FROM t0 WHERE t0 MATCH '1*'
+} {0}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_test 45.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 24576 pagesize 4096 filename crash-65c98512cc9e49.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 06   .....@  ........
+|     96: 00 00 00 00 0d 0e fc 00 06 0d bc 00 0f ca 0f 6c   ...............l
+|    112: 0f 04 0e 13 0e c9 0d bc 00 00 00 00 00 00 00 00   ................
+|   3504: 00 00 00 00 00 00 00 00 00 00 00 00 55 06 07 17   ............U...
+|   3520: 1b 1b 01 81 01 74 61 62 6c 65 78 31 5f 73 74 61   .....tablex1_sta
+|   3536: 74 78 31 5f 73 74 61 74 06 43 52 45 41 54 45 20   tx1_stat.CREATE 
+|   3552: 54 41 42 4c 45 20 27 78 31 5f 73 74 61 74 27 28   TABLE 'x1_stat'(
+|   3568: 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41   id INTEGER PRIMA
+|   3584: 52 59 20 4b 45 59 2c 20 76 61 6c 75 65 20 42 4c   RY KEY, value BL
+|   3600: 41 82 29 81 33 04 07 17 1f 1f 01 82 35 74 61 62   A.).3.......5tab
+|   3616: 6c 65 78 31 5f 73 65 67 64 69 72 78 31 5f 73 65   lex1_segdirx1_se
+|   3632: 67 64 69 72 04 43 52 45 41 54 45 20 54 41 42 4c   gdir.CREATE TABL
+|   3648: 45 20 27 78 31 5f 73 65 67 64 69 72 27 28 6c 65   E 'x1_segdir'(le
+|   3664: 76 65 6c 20 49 4e 54 45 47 45 52 2c 69 64 78 20   vel INTEGER,idx 
+|   3680: 49 4e 54 45 47 45 52 2c 73 74 61 72 74 5f 62 6c   INTEGER,start_bl
+|   3696: 6f 63 6b 20 49 4e 54 45 47 45 52 2c 6c 65 61 76   ock INTEGER,leav
+|   3712: 65 73 5f 65 6e 64 5f 62 6c 6f 63 6b 20 49 4e 54   es_end_block INT
+|   3728: 45 47 45 52 2c 65 6e 64 5f 62 6c 6f 63 6b 20 49   EGER,end_block I
+|   3744: 4e 54 45 47 45 52 2c 72 6f 6f 74 20 42 4c 4f 42   NTEGER,root BLOB
+|   3760: 2c 50 52 49 4d 41 52 59 20 4b 45 59 28 6c 65 76   ,PRIMARY KEY(lev
+|   3776: 65 6c 2c 20 69 64 78 29 29 31 05 06 17 45 1f 01   el, idx))1...E..
+|   3792: 00 69 6e 64 65 78 73 71 6c 69 74 65 5f 61 75 74   .indexsqlite_aut
+|   3808: 6f 69 6e 64 65 78 5f 78 31 5f 73 65 67 64 69 72   oindex_x1_segdir
+|   3824: 5f 31 78 31 5f 73 65 67 64 69 72 05 00 00 00 08   _1x1_segdir.....
+|   3840: 60 00 00 00 66 03 07 17 23 23 01 81 13 74 61 62   `...f...##...tab
+|   3856: 6c 65 78 31 5f 73 65 67 6d 65 6e 74 73 78 31 5f   lex1_segmentsx1_
+|   3872: 73 65 67 6d 65 6e 74 73 03 43 52 45 41 54 45 20   segments.CREATE 
+|   3888: 54 41 42 4c 45 20 27 78 31 5f 73 65 67 6d 65 6e   TABLE 'x1_segmen
+|   3904: 74 73 27 28 62 6c 6f 63 6b 69 64 20 49 4e 54 45   ts'(blockid INTE
+|   3920: 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c   GER PRIMARY KEY,
+|   3936: 20 62 6c 6f 63 6b 20 42 4c 4f 42 29 5c 02 07 17    block BLOB)....
+|   3952: 21 21 01 81 03 74 61 62 6c 65 78 31 5f 63 6f 6e   !!...tablex1_con
+|   3968: 74 65 6e 74 78 31 5f 63 6f 6e 74 65 6e 74 02 43   tentx1_content.C
+|   3984: 52 45 41 54 45 20 54 41 42 4c 45 20 27 78 31 5f   REATE TABLE 'x1_
+|   4000: 63 6f 6e 74 65 6e 74 27 28 64 6f 63 69 64 20 49   content'(docid I
+|   4016: 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b   NTEGER PRIMARY K
+|   4032: 45 59 2c 20 27 63 30 78 27 29 34 01 06 17 11 11   EY, 'c0x')4.....
+|   4048: 08 57 74 61 62 6c 65 78 31 78 31 43 52 45 41 54   .Wtablex1x1CREAT
+|   4064: 45 20 56 49 52 54 55 41 4c 20 54 41 42 4c 45 20   E VIRTUAL TABLE 
+|   4080: 78 31 20 55 53 49 4e 47 20 66 74 73 33 28 78 29   x1 USING fts3(x)
+| page 2 offset 4096
+|      0: 0d 00 00 00 11 0f 77 f0 0f f8 0f f0 0f e8 0f e0   ......w.........
+|     16: 0f d8 0f d0 0f c8 0f c0 00 00 00 00 00 00 00 00   ................
+|   3952: 00 00 00 00 00 00 00 00 06 11 03 00 13 77 78 79   .............wxy
+|   3968: 06 10 03 00 13 74 75 76 06 0f 03 00 13 71 33 73   .....tuv.....q3s
+|   3984: 06 0e 03 00 13 6e 6f 70 06 0d 03 00 13 6b 6c 6d   .....nop.....klm
+|   4000: 06 0c 03 04 c3 68 69 6a 06 0b 03 00 13 65 66 67   .....hij.....efg
+|   4016: 06 0a 03 00 13 62 63 64 06 09 03 00 13 79 7a 61   .....bcd.....yza
+|   4032: 06 08 03 00 13 76 77 78 06 07 03 00 13 73 74 75   .....vwx.....stu
+|   4048: 06 06 03 00 13 70 71 72 06 05 03 00 13 6d 6e 6f   .....pqr.....mno
+|   4064: 06 03 03 00 13 6a 6b 6c 06 03 03 00 13 67 68 69   .....jkl.....ghi
+|   4080: 06 02 02 00 03 64 65 66 06 01 03 00 13 61 52 63   .....def.....aRc
+| page 3 offset 8192
+|      0: 0d 00 00 00 03 0f a7 00 0f b5 0f a7 0f fa 01 00   ................
+|   4000: 00 00 00 00 00 00 00 0c 02 03 00 1e 00 03 6b 6c   ..............kl
+|   4016: 6d 03 0d 02 00 43 01 04 00 81 0a 00 03 61 62 63   m....C.......abc
+|   4032: 03 0b 32 00 00 03 62 63 64 03 0a 02 00 00 03 64   ..2...bcd......d
+|   4048: 69 26 03 02 02 00 00 03 65 66 67 03 0b 02 00 00   i&......efg.....
+|   4064: 03 67 68 69 03 03 02 00 00 03 68 69 6a 03 0c 02   .ghi......hij...
+|   4080: 00 00 03 6a 6a 2c 03 04 02 00 03 81 00 03 00 00   ...jj,..........
+| page 4 offset 12288
+|      0: 0d 0f 3a 00 05 0f 25 00 0f 9e 0f 88 0f 43 0f 25   ..:...%......C.%
+|     16: 0f 72 00 00 00 00 00 00 00 00 00 00 00 00 00 00   .r..............
+|   3856: 00 00 00 00 00 00 00 00 00 56 01 08 08 13 1e 03   .........V......
+|   3872: 30 20 39 00 03 13 05 07 08 08 18 08 13 1e 30 20   0 9...........0 
+|   3888: 39 00 03 77 78 79 03 11 02 00 0f 6c 00 09 01 08   9..wxy.....l....
+|   3904: 08 15 54 27 04 07 09 01 08 08 15 42 02 30 20 33   ..T'.......B.0 3
+|   3920: 36 00 03 6e 6f 70 03 0e 02 00 00 03 71 72 73 03   6..nop......qrs.
+|   3936: 0f 02 00 00 03 74 75 76 03 10 02 00 0f cf b1 06   .....tuv........
+|   3952: 01 08 14 06 07 01 08 09 01 1b 14 02 02 31 32 38   .............128
+|   3968: 20 2d 37 32 10 01 01 6b 14 03 07 09 09 08 08 15    -72...k........
+|   3984: 1e 30 20 33 36 00 03 79 7a 61 03 09 02 00 2f 02   .0 36..yza..../.
+|   4000: 07 09 08 08 08 15 54 30 20 33 36 00 03 6d 6e 6f   ......T0 36..mno
+|   4016: 03 05 02 00 00 03 70 71 72 03 06 02 00 00 03 73   ......pqr......s
+|   4032: 74 75 03 07 02 00 00 03 76 77 78 03 08 02 00 00   tu......vwx.....
+|   4048: 00 00 4a 08 08 08 15 54 30 20 33 36 00 03 61 62   ..J....T0 36..ab
+|   4064: 63 03 01 02 00 00 03 64 65 66 03 02 02 00 00 03   c......def......
+|   4080: 67 68 69 03 03 67 00 00 03 6a 6b 6c 03 04 02 00   ghi..g...jkl....
+| page 5 offset 16384
+|      0: 0a 0f e7 00 05 0f da 00 0f e1 0f fa 0f f4 0f ed   ................
+|     16: 0f da 0f 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4048: 00 00 00 00 00 00 00 1a 01 03 06 04 01 08 01 02   ................
+|   4064: 06 05 04 08 08 01 05 00 00 00 06 01 03 06 04 09   ................
+|   4080: 02 01 02 04 05 04 09 09 01 03 05 04 09 08 01 02   ................
+| page 6 offset 20480
+|      0: 0d 00 10 00 01 0f f9 00 0f f9 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 05 01 03 00 10 01 03   ................
+| end crash-65c98512cc9e49.db
+}]} {}
+
+do_catchsql_test 45.2 {
+  INSERT INTO x1(x1) VALUES( 'merge=1' )
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+set saved $sqlite_fts3_enable_parentheses
+set sqlite_fts3_enable_parentheses 1
+do_execsql_test 46.1 {
+  CREATE VIRTUAL TABLE t0 USING fts3(a INTEGER PRIMARY KEY,b,c,d);
+  INSERT INTO t0_segdir VALUES(0,0,0,0,'0 42',X'0001310301c9000103323334050d8000f200000461616161050101020200000462626262050101030200');
+} {}
+
+do_catchsql_test 46.2 {
+  SELECT * FROM t0
+    WHERE t0 MATCH x'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';
+} {1 {database disk image is malformed}}
+
+set sqlite_fts3_enable_parentheses $saved
+extra_schema_checks 1
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 47.1 {
+  CREATE VIRTUAL TABLE t1 USING fts3(a,b,c);
+}
+do_execsql_test 47.2 {
+  INSERT INTO t1_segdir VALUES(0,0,0,0,0,X'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');
+  INSERT INTO t1_segdir VALUES(0,1,0,0,0,X'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');
+}
+
+do_catchsql_test 47.3 {
+  SELECT matchinfo(t1) FROM t1 WHERE t1 MATCH '"json1 enable"';
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_test 48.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 20480 pagesize 4096 filename sql038051.txt.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 00   .....@  ........
+|     96: 00 00 00 00 0d 0e fc 00 05 0e 13 00 0f ca 0f 6c   ...............l
+|    112: 0f 04 0e 13 0e c9 00 00 00 00 00 00 00 00 00 00   ................
+|   3600: 00 00 00 81 33 04 07 17 1f 1f 01 82 35 74 61 62   ....3.......5tab
+|   3616: 6c 65 78 31 5f 73 65 67 64 69 72 78 31 5f 73 65   lex1_segdirx1_se
+|   3632: 67 64 69 72 04 43 52 45 41 54 45 20 54 41 42 4c   gdir.CREATE TABL
+|   3648: 45 20 27 78 31 5f 73 65 67 64 69 72 27 28 6c 65   E 'x1_segdir'(le
+|   3664: 76 65 6c 20 49 4e 54 45 47 45 52 2c 69 64 78 20   vel INTEGER,idx 
+|   3680: 49 4e 54 45 47 45 52 2c 73 74 61 72 74 5f 62 6c   INTEGER,start_bl
+|   3696: 6f 63 6b 20 49 4e 54 45 47 45 52 2c 6c 65 61 76   ock INTEGER,leav
+|   3712: 65 73 5f 65 6e 64 5f 62 6c 6f 63 6b 20 49 4e 54   es_end_block INT
+|   3728: 45 47 45 52 2c 65 6e 64 5f 62 6c 6f 63 6b 20 49   EGER,end_block I
+|   3744: 4e 54 45 47 45 52 2c 72 6f 6f 74 20 42 4c 4f 42   NTEGER,root BLOB
+|   3760: 2c 50 52 49 4d 41 52 59 20 4b 45 59 28 6c 65 76   ,PRIMARY KEY(lev
+|   3776: 65 6c 2c 20 69 64 78 29 29 31 05 06 17 45 1f 01   el, idx))1...E..
+|   3792: 00 69 6e 64 65 78 73 71 6c 69 74 65 5f 61 75 74   .indexsqlite_aut
+|   3808: 6f 69 6e 64 65 78 5f 78 31 5f 73 65 67 64 69 72   oindex_x1_segdir
+|   3824: 5f 31 78 31 5f 73 65 67 64 69 72 05 00 00 00 08   _1x1_segdir.....
+|   3840: 00 00 00 00 66 03 07 17 23 23 01 81 13 74 61 62   ....f...##...tab
+|   3856: 6c 65 78 31 5f 73 65 67 6d 65 6e 74 73 78 31 5f   lex1_segmentsx1_
+|   3872: 73 65 67 6d 65 6e 74 73 03 43 52 45 41 54 45 20   segments.CREATE 
+|   3888: 54 41 42 4c 45 20 27 78 31 5f 73 65 67 6d 65 6e   TABLE 'x1_segmen
+|   3904: 74 73 27 28 62 6c 6f 63 6b 69 64 20 49 4e 54 45   ts'(blockid INTE
+|   3920: 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c   GER PRIMARY KEY,
+|   3936: 20 62 6c 6f 63 6b 20 42 4c 4f 42 29 5c 02 07 17    block BLOB)....
+|   3952: 21 21 01 81 03 74 61 62 6c 65 78 31 5f 63 6f 6e   !!...tablex1_con
+|   3968: 74 65 6e 74 78 31 5f 63 6f 6e 74 65 6e 74 02 43   tentx1_content.C
+|   3984: 52 45 41 54 45 20 54 41 42 4c 45 20 27 78 31 5f   REATE TABLE 'x1_
+|   4000: 63 6f 6e 74 65 6e 74 27 28 64 6f 63 69 64 20 49   content'(docid I
+|   4016: 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b   NTEGER PRIMARY K
+|   4032: 45 59 2c 20 27 63 30 78 27 29 34 01 06 17 11 11   EY, 'c0x')4.....
+|   4048: 08 57 74 61 62 6c 65 78 31 78 31 43 52 45 41 54   .Wtablex1x1CREAT
+|   4064: 45 20 56 49 52 54 55 41 4c 20 54 41 42 4c 45 20   E VIRTUAL TABLE 
+|   4080: 78 31 20 55 53 49 4e 47 20 66 74 73 33 28 78 29   x1 USING fts3(x)
+| page 2 offset 4096
+|      0: 0d 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   3920: 00 00 00 2e 04 03 00 63 62 72 61 69 6e 73 74 65   .......cbrainste
+|   3936: 6d 20 62 72 61 69 6e 73 74 65 6d 73 20 62 72 61   m brainstems bra
+|   3952: 69 6e 73 74 6f 72 6d 20 62 72 61 69 6e 73 74 6f   instorm brainsto
+|   3968: 72 6d 73 2b 03 03 00 5d 62 72 61 69 6e 20 62 72   rms+...]brain br
+|   3984: 61 69 6e 63 68 69 6c 64 20 62 72 61 69 6e 65 64   ainchild brained
+|   4000: 20 62 72 61 69 6e 69 6e 67 20 62 72 61 69 6e 73    braining brains
+|   4016: 26 02 03 00 53 62 72 61 67 73 20 62 72 61 69 64   &...Sbrags braid
+|   4032: 20 62 72 61 69 64 65 64 20 62 72 61 69 64 69 6e    braided braidin
+|   4048: 67 20 62 72 61 69 64 73 26 01 03 00 53 62 72 61   g braids&...Sbra
+|   4064: 65 73 20 62 72 61 67 20 62 72 61 67 67 65 64 20   es brag bragged 
+|   4080: 62 72 61 c3 67 65 72 20 62 72 61 67 67 69 6e 67   bra.ger bragging
+| page 3 offset 8192
+|      0: 0d 00 00 00 00 01 00 00 00 00 00 00 00 00 00 00   ................
+| page 4 offset 12288
+|      0: 0d 00 00 00 04 0f 20 00 0f c8 0f 90 0f 54 0f 20   ...... ......T. 
+|   3872: 32 04 07 08 01 08 08 15 58 03 30 20 33 38 00 09   2.......X.0 38..
+|   3888: 62 72 61 69 6e 73 74 65 6d 03 04 02 00 09 01 73   brainstem......s
+|   3904: 03 04 03 00 07 03 6f 72 6d 03 04 04 00 0a 01 73   ......orm......s
+|   3920: 03 04 05 00 3a 03 07 08 01 08 08 15 68 02 30 20   ....:.......h.0 
+|   3936: 34 36 00 05 62 72 61 69 6e 03 03 02 00 05 05 63   46..brain......c
+|   3952: 68 69 6c 64 03 03 03 00 05 02 65 64 03 03 04 00   hild......ed....
+|   3968: 05 03 69 6e 67 03 03 05 00 05 01 73 03 03 06 00   ..ing......s....
+|   3984: 36 02 07 08 09 08 08 15 62 30 20 34 33 00 05 62   6.......b0 43..b
+|   4000: 72 61 67 73 03 02 02 00 03 02 69 64 03 02 03 00   rags......id....
+|   4016: 05 02 65 64 03 02 04 00 05 03 69 6e 67 03 02 05   ..ed......ing...
+|   4032: 00 05 01 73 03 02 06 00 36 01 07 08 08 08 08 15   ...s....6.......
+|   4048: 62 30 20 34 33 00 05 62 72 61 65 73 03 01 02 00   b0 43..braes....
+|   4064: 03 01 68 03 01 03 00 04 03 67 65 74 03 01 04 00   ..h......get....
+|   4080: 06 01 72 03 01 05 00 05 03 69 6e 67 03 01 06 00   ..r......ing....
+| page 5 offset 16384
+|      0: 0a 00 00 00 04 0f e7 00 0f fb 0f f5 0f ee 0f e7   ................
+|   4064: 00 00 00 00 00 00 00 06 04 08 01 01 03 04 06 04   ................
+|   4080: 08 01 01 02 03 05 04 08 09 01 02 04 04 08 08 09   ................
+| end sql038051.txt.db
+}]} {}
+
+do_catchsql_test 48.1 {
+  INSERT INTO x1(x1) VALUES('nodesize=24'),('merge=3,4');
+  INSERT INTO x1(x1) VALUES( 'merge=3,4' ),('merge=3,4');
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_test 49.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 28672 pagesize 4096 filename crash-58821b8eae6883.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 07   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 06 00 00 00 04   ................
+|     96: 00 00 00 00 0d 0e ef 00 07 0d 4d 00 0f bd 0f 5f   ..........M...._
+|    112: 0e f7 0e 06 0e bc 0d a4 0d 4d 00 00 00 00 00 00   .........M......
+|   3392: 00 00 00 00 00 00 00 00 00 00 00 00 00 55 07 07   .............U..
+|   3408: 17 1b 1b 01 81 01 74 61 62 6c 65 74 31 5f 73 74   ......tablet1_st
+|   3424: 61 74 74 31 5f 73 74 61 74 07 43 52 45 41 54 45   att1_stat.CREATE
+|   3440: 20 54 41 42 4c 45 20 27 74 31 5f 73 74 61 74 27    TABLE 't1_stat'
+|   3456: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   (id INTEGER PRIM
+|   3472: 41 52 59 20 4b 45 59 2c 20 76 61 6c 75 65 20 42   ARY KEY, value B
+|   3488: 4c 4f 42 29 60 06 07 17 21 21 01 81 0b 74 61 62   LOB)`...!!...tab
+|   3504: 6c 65 74 31 5f 64 6f 63 73 69 7a 65 74 31 5f 64   let1_docsizet1_d
+|   3520: 6f 63 73 69 7a 65 06 43 52 45 41 54 45 20 54 41   ocsize.CREATE TA
+|   3536: 42 4c 45 20 27 74 31 5f 64 6f 63 73 69 7a 65 27   BLE 't1_docsize'
+|   3552: 28 64 6f 63 69 64 20 49 4e 54 45 47 45 52 20 50   (docid INTEGER P
+|   3568: 52 49 4d 41 52 59 20 4b 45 59 2c 20 73 69 7a 65   RIMARY KEY, size
+|   3584: 20 42 4c 4f 42 29 81 33 04 07 17 1f 1f 01 82 35    BLOB).3.......5
+|   3600: 74 61 62 6c 65 74 31 5f 73 65 67 64 69 72 74 31   tablet1_segdirt1
+|   3616: 5f 73 65 67 64 69 72 04 43 52 45 41 54 45 20 54   _segdir.CREATE T
+|   3632: 41 42 4c 45 20 27 74 31 5f 73 65 67 64 69 72 27   ABLE 't1_segdir'
+|   3648: 28 6c 65 76 65 6c 20 49 4e 54 45 47 45 52 2c 69   (level INTEGER,i
+|   3664: 64 78 20 49 4e 54 45 47 45 52 2c 73 74 61 72 74   dx INTEGER,start
+|   3680: 5f 62 6c 6f 63 6b 20 49 4e 54 45 47 45 52 2c 6c   _block INTEGER,l
+|   3696: 65 61 76 65 73 5f 65 6e 64 5f 62 6c 6f 63 6b 20   eaves_end_block 
+|   3712: 49 4e 54 45 47 45 52 2c 65 6e 64 5f 62 6c 6f 63   INTEGER,end_bloc
+|   3728: 6b 20 49 4e 54 45 47 45 52 2c 72 6f 6f 74 20 42   k INTEGER,root B
+|   3744: 4c 4f 42 2c 50 52 49 4d 41 52 59 20 4b 45 59 28   LOB,PRIMARY KEY(
+|   3760: 6c 65 76 65 6c 2c 20 69 64 78 29 29 31 05 06 17   level, idx))1...
+|   3776: 45 1f 01 00 69 6e 64 65 78 73 71 6c 69 74 65 5f   E...indexsqlite_
+|   3792: 61 75 74 6f 69 6e 64 65 78 5f 74 31 5f 73 65 67   autoindex_t1_seg
+|   3808: 64 69 72 5f 31 74 31 5f 73 65 67 64 69 72 05 00   dir_1t1_segdir..
+|   3824: 00 00 08 00 00 00 00 66 03 07 17 23 23 01 81 13   .......f...##...
+|   3840: 74 61 62 6c 65 74 31 5f 73 65 67 6d 65 6e 74 73   tablet1_segments
+|   3856: 74 31 5f 73 65 67 6d 65 6e 74 73 03 43 52 45 41   t1_segments.CREA
+|   3872: 54 45 20 54 41 42 4c 45 20 27 74 31 5f 73 65 67   TE TABLE 't1_seg
+|   3888: 6d 65 6e 74 73 27 28 62 6c 6f 63 6b 69 64 20 49   ments'(blockid I
+|   3904: 4e 54 45 47 45 52 20 f9 52 49 4d 41 52 59 20 4b   NTEGER .RIMARY K
+|   3920: 45 59 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42 29 5c   EY, block BLOB).
+|   3936: 02 07 17 21 21 01 81 03 74 61 62 6c 65 74 31 5f   ...!!...tablet1_
+|   3952: 63 6f 6e 74 65 6e 74 74 31 5f 63 6f 6e 74 65 6e   contentt1_conten
+|   3968: 74 02 43 52 45 41 54 45 20 54 41 42 4c 45 20 27   t.CREATE TABLE '
+|   3984: 74 31 5f 63 6f 6e 74 65 6e 74 27 28 64 6f 63 69   t1_content'(doci
+|   4000: 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52   d INTEGER PRIMAR
+|   4016: 59 20 4b 45 59 2c 20 27 63 30 61 27 29 41 01 06   Y KEY, 'c0a')A..
+|   4032: 17 11 11 08 71 74 61 62 6c 65 74 31 74 31 43 52   ....qtablet1t1CR
+|   4048: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4064: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 34   LE t1 USING fts4
+|   4080: 28 61 2c 70 72 65 66 69 78 3d 27 32 2c 32 27 29   (a,prefix='2,2')
+| page 2 offset 4096
+|      0: 0d 00 00 00 08 0e 1f 00 0f c4 0f 7c 0f 34 0f 07   ...........|.4..
+|     16: 0e c3 0e 97 0e 00 00 00 00 00 00 00 00 00 00 00   ................
+|   3600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 42   ...............B
+|   3616: 08 04 00 81 09 73 75 6e 74 20 69 6e 20 63 75 6c   .....sunt in cul
+|   3632: 70 61 20 71 75 69 20 6f 66 66 69 63 69 61 20 64   pa qui officia d
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+|   3664: 6e 69 6d 20 69 64 20 65 73 74 20 6c 61 62 6f 72   nim id est labor
+|   3680: 75 6d 2e 32 07 03 00 6b 45 78 63 65 70 74 65 75   um.2...kExcepteu
+|   3696: 72 20 73 69 6e 74 20 6f 63 63 61 65 63 61 74 20   r sint occaecat 
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+|   3744: 75 6d 20 64 6f 6c 6f 72 65 20 65 75 20 66 75 67   um dolore eu fug
+|   3760: 69 61 74 20 6e 75 6c 6c 61 20 70 61 72 69 61 74   iat nulla pariat
+|   3776: 75 72 2e 42 05 04 00 81 09 44 75 69 73 20 61 75   ur.B.....Duis au
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+|   3808: 6e 20 72 65 70 72 65 68 65 6e 64 65 72 69 74 20   n reprehenderit 
+|   3824: 69 6e 20 76 6f 6c 75 70 74 61 74 65 20 76 65 6c   in voluptate vel
+|   3840: 69 74 20 65 73 73 65 2b 04 03 00 5d 6e 69 73 69   it esse+...]nisi
+|   3856: 20 75 74 20 61 6c 69 71 75 69 70 20 65 78 20 65    ut aliquip ex e
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+|   3888: 75 61 74 2e 46 03 04 00 81 11 55 74 20 65 6e 69   uat.F.....Ut eni
+|   3904: 6d 20 61 64 20 6d 69 6e 69 6d 20 76 65 6e 69 61   m ad minim venia
+|   3920: 6d 2c 20 71 75 69 73 20 6e 6f 73 74 72 75 64 20   m, quis nostrud 
+|   3936: 65 78 65 72 63 69 74 61 74 69 6f 6e 20 75 6c 6c   exercitation ull
+|   3952: 61 6d 63 6f 20 6c 61 62 6f 72 69 73 46 02 04 00   amco laborisF...
+|   3968: 81 11 73 65 64 20 64 6f 20 65 69 75 73 6d 6f 64   ..sed do eiusmod
+|   3984: 20 74 65 6d 70 6f 72 20 69 6e 63 69 64 69 64 75    tempor incididu
+|   4000: 6e 74 20 75 74 20 6c 61 62 6f 72 65 20 65 74 20   nt ut labore et 
+|   4016: 64 6f 6c 6f 72 65 20 6d 61 67 6e 61 20 61 6c 69   dolore magna ali
+|   4032: 71 75 61 2e 3a 01 03 00 7b 4c 6f 72 65 6d 20 69   qua.:....Lorem i
+|   4048: 70 73 75 6d 20 64 6f 6c 6f 72 20 73 69 74 20 61   psum dolor sit a
+|   4064: 6d 65 74 2c 20 63 6f 6e 73 65 63 74 65 74 75 72   met, consectetur
+|   4080: 20 61 64 69 70 69 73 63 69 6e 67 20 65 00 01 00    adipiscing e...
+| page 4 offset 12288
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+|   2880: 05 0b 00 03 0b 00 01 01 74 03 02 09 00 01 01 75   ........t......u
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+|   2912: 00 00 02 66 75 03 06 05 00 00 02 69 64 03 08 0a   ...fu......id...
+|   2928: 00 01 01 6e 0a 02 06 00 03 06 04 00 03 03 00 01   ...n............
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+|   2992: 00 01 01 6f 03 08 08 00 00 02 6e 69 03 04 02 00   ...o......ni....
+|   3008: 01 01 6f 06 03 08 00 04 06 00 01 01 75 03 06 06   ..o.........u...
+|   3024: 00 00 02 6f 63 03 07 04 00 01 01 66 03 08 06 00   ...oc......f....
+|   3040: 00 02 70 61 03 06 07 00 01 01 72 03 07 07 00 00   ..pa......r.....
+|   3056: 02 71 75 06 03 07 00 05 05 00 00 02 72 65 03 05   .qu.........re..
+|   3072: 07 00 00 02 73 65 03 02 02 00 01 01 69 06 01 05   ....se......i...
+|   3088: 00 06 03 00 01 01 75 03 08 02 00 00 02 74 65 03   ......u......te.
+|   3104: 02 05 00 00 02 75 6c 03 03 0a 00 01 01 74 09 02   .....ul......t..
+|   3120: 07 00 01 02 00 01 03 00 00 02 76 65 06 03 06 00   ..........ve....
+|   3136: 02 0a 00 01 01 6f 03 05 09 00 82 0a 02 08 02 08   .....o..........
+|   3152: 08 08 17 84 02 04 00 30 20 32 35 31 00 01 61 13   .......0 251..a.
+|   3168: 01 06 04 00 01 0c 00 01 04 00 01 04 00 01 03 00   ................
+|   3184: 03 09 00 00 01 63 10 01 07 00 03 07 03 00 02 02   .....c..........
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+|   3232: 01 09 00 01 04 07 00 01 03 08 00 01 05 03 00 01   ................
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+|   3328: 06 00 00 01 6f 06 07 04 00 01 06 00 00 01 70 06   ....o.........p.
+|   3344: 06 07 00 01 07 00 00 01 71 06 03 07 00 05 05 00   ........q.......
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+|   3392: 75 0a 02 07 00 01 02 0a 00 01 03 00 00 01 76 07   u.............v.
+|   3408: 03 06 00 02 09 03 00 85 26 01 08 08 08 08 08 17   ........&.......
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+|   3456: 69 71 75 61 03 02 0c 00 05 02 69 70 03 04 04 00   iqua......ip....
+|   3472: 01 03 6d 65 74 03 01 06 00 01 03 6e 69 6d 03 08   ..met......nim..
+|   3488: 09 00 01 03 75 74 65 03 05 03 00 00 06 63 69 6c   ....ute......cil
+|   3504: 6c 75 6d 03 06 02 00 01 06 6f 6d 6d 6f 64 6f 03   lum......ommodo.
+|   3520: 04 07 00 02 09 6e 73 65 63 74 65 74 b5 72 03 01   .....nsectet.r..
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+|   3568: 07 05 00 00 08 64 65 73 65 72 75 6e 74 03 08 07   .....deserunt...
+|   3584: 00 01 01 6f 03 02 03 00 02 03 6c 6f 72 06 01 04   ...o......lor...
+|   3600: 00 04 05 00 05 01 65 06 02 0a 00 04 03 00 01 03   ......e.........
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+|   3632: 06 69 75 73 6d 6f 64 03 02 04 00 01 03 6c 69 74   .iusmod......lit
+|   3648: 03 01 09 00 01 03 6e 69 6d 03 03 03 00 01 03 73   ......nim......s
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+|   3680: 03 02 09 00 01 01 75 03 06 04 00 01 01 78 03 04   ......u......x..
+|   3696: 05 00 02 07 63 65 70 74 65 75 72 03 07 02 00 02   ....cepteur.....
+|   3712: 0a 65 72 63 69 74 61 74 69 6f 6e 03 03 09 00 00   .ercitation.....
+|   3728: 06 66 75 67 69 61 74 03 06 05 00 00 02 69 64 03   .fugiat......id.
+|   3744: 08 0a 00 01 01 6e 07 05 06 04 00 03 03 00 02 08   .....n..........
+|   3760: 63 69 64 69 64 75 6e 74 03 02 06 00 01 04 70 73   cididunt......ps
+|   3776: 75 6d 03 01 03 00 01 04 72 75 72 65 03 05 04 00   um......rure....
+|   3792: 00 06 6c 61 62 6f 72 65 03 02 08 00 05 02 69 73   ..labore......is
+|   3808: 03 03 0b 00 05 02 75 6d 03 08 0c 00 01 04 6f 72   ......um......or
+|   3824: 65 6d 03 01 02 00 00 05 6d 61 67 6e 61 03 02 0b   em......magna...
+|   3840: 00 01 04 69 6e 69 6d 03 03 05 00 01 05 6f 6c 6c   ...inim......oll
+|   3856: 69 74 03 08 08 00 00 04 6e 69 73 69 03 04 02 00   it......nisi....
+|   3872: 01 02 6f 6e 03 07 06 00 02 05 73 74 72 75 64 03   ..on......strud.
+|   3888: 03 08 00 01 04 75 6c 6c 61 03 06 06 00 00 08 6f   .....ulla......o
+|   3904: 63 63 61 65 63 61 74 03 07 04 00 01 06 66 66 69   ccaecat......ffi
+|   3920: 63 69 61 03 08 06 00 00 08 70 61 72 69 61 74 75   cia......pariatu
+|   3936: 72 03 06 07 00 01 07 72 6f 69 64 65 6e 74 03 07   r......roident..
+|   3952: 07 00 00 03 71 75 69 03 08 05 00 03 01 73 03 03   ....qui......s..
+|   3968: 07 00 00 0d 72 65 70 72 65 68 65 6e 64 65 72 69   ....reprehenderi
+|   3984: 74 03 05 07 00 00 03 73 65 64 03 02 02 00 01 03   t......sed......
+|   4000: 69 6e 74 03 07 03 00 02 01 74 03 01 05 00 01 03   int......t......
+|   4016: 75 6e 74 03 08 02 00 00 06 74 65 6d 70 6f 72 03   unt......tempor.
+|   4032: 02 05 00 00 07 75 6c 6c 61 6d 63 6f 03 03 0a 00   .....ullamco....
+|   4048: 01 01 74 09 02 07 00 01 02 00 01 03 00 00 05 76   ..t............v
+|   4064: 65 6c 69 74 03 05 0a 00 02 04 6e 69 61 6d 03 03   elit......niam..
+|   4080: 06 00 01 08 6f 6c 75 70 74 61 74 65 03 05 09 00   ....oluptate....
+| page 5 offset 16384
+|      0: 0a 00 00 00 03 0f eb 00 0f fb 0f f3 0f eb 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 07 04 02 08 01   ................
+|   4080: 08 00 03 07 04 02 08 01 04 00 02 04 04 08 08 09   ................
+| page 6 offset 20480
+|      0: 0d 00 00 00 08 0f d0 00 0f fa 0f f4 0f ee 0f e8   ................
+|     16: 0f e2 0f dc 0f d6 0f d0 00 00 00 00 00 00 00 00   ................
+|   4048: 04 08 03 00 0e 0b 04 07 03 00 0e 06 04 06 03 00   ................
+|   4064: 0e 06 04 05 03 00 0e 0a 04 04 03 00 0e 07 04 03   ................
+|   4080: 03 00 0e 0a 04 02 03 00 0e 0b 04 01 03 00 0e 08   ................
+| page 7 offset 24576
+|      0: 0d 00 00 00 01 0f f7 00 0f f7 00 00 00 00 01 00   ................
+|   4080: 00 00 00 00 00 00 00 07 00 03 00 14 08 45 b5 03   .............E..
+| end crash-58821b8eae6883.db
+}]} {}
+
+do_catchsql_test 49.1 {
+  SAVEPOINT one;
+  DELETE FROM t1 WHERE t1 MATCH 'c*';
+  SELECT matchinfo(t1,'pcx') IS NULL FROM t1 WHERE t1 MATCH 'f*e*';
+} {0 0}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_test 50.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 28672 pagesize 4096 filename crash-14ab65782c9c45.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 07   .....@  ........
+|     32: 00 00 00 02 00 00 00 01 00 00 00 00 00 00 00 00   ................
+|     96: 00 00 00 00 0d 0e b1 00 06 0d a4 00 0f 8d 0f 21   ...............!
+|    112: 0e b9 0d c8 0e 7e 0d a4 00 00 00 00 00 00 00 00   .....~..........
+|   3488: 00 00 00 00 22 07 06 17 11 11 01 31 74 61 62 6c   ...........1tabl
+|   3504: 65 74 32 74 32 07 43 52 45 41 54 45 20 54 41 42   et2t2.CREATE TAB
+|   3520: 4c 45 20 74 32 28 78 29 81 33 05 07 17 1f 1f 01   LE t2(x).3......
+|   3536: 82 35 74 61 62 6c 65 74 31 5f 73 65 67 64 69 72   .5tablet1_segdir
+|   3552: 74 31 5f 73 65 67 64 69 72 05 43 52 45 41 54 45   t1_segdir.CREATE
+|   3568: 20 54 41 42 4c 45 20 27 74 31 5f 73 65 67 64 69    TABLE 't1_segdi
+|   3584: 72 27 28 6c 65 76 65 6c 20 49 4e 54 45 47 45 52   r'(level INTEGER
+|   3600: 2c 69 64 78 20 49 4e 54 45 47 45 52 2c 73 74 61   ,idx INTEGER,sta
+|   3616: 72 74 5f 62 6c 6f 63 6b 20 49 4e 54 45 47 45 52   rt_block INTEGER
+|   3632: 2c 6c 65 61 76 65 73 5f 65 6e 64 5f 62 6c 6f 63   ,leaves_end_bloc
+|   3648: 6b 20 49 4e 54 45 47 45 52 2c 65 6e 64 5f 62 6c   k INTEGER,end_bl
+|   3664: 6f 63 6b 20 49 4e 54 45 47 45 52 2c 72 6f 6f 74   ock INTEGER,root
+|   3680: 20 42 4c 4f 42 2c 50 52 49 4d 41 52 59 20 4b 45    BLOB,PRIMARY KE
+|   3696: 59 28 6c 65 76 65 6c 2c 20 69 64 78 29 29 31 06   Y(level, idx))1.
+|   3712: 06 17 45 1f 01 00 69 6e 64 65 78 73 71 6c 69 74   ..E...indexsqlit
+|   3728: 65 5f 61 75 74 6f 69 6e 64 65 78 5f 74 31 5f 73   e_autoindex_t1_s
+|   3744: 65 67 64 69 72 5f 31 74 31 5f 73 65 68 64 69 72   egdir_1t1_sehdir
+|   3760: 06 0f c7 00 08 00 00 00 00 66 04 07 17 23 23 01   .........f...##.
+|   3776: 81 13 74 61 62 6c 65 74 31 5f 73 65 67 6d 65 6e   ..tablet1_segmen
+|   3792: 74 73 74 31 5f 73 65 67 6d 65 6e 74 73 04 43 52   tst1_segments.CR
+|   3808: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 73   EATE TABLE 't1_s
+|   3824: 65 67 6d 65 6e 74 73 27 28 62 6c 6f 63 6b 69 64   egments'(blockid
+|   3840: 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59    INTEGER PRIMARY
+|   3856: 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42    KEY, block BLOB
+|   3872: 29 6a 03 07 17 21 21 01 81 1f 74 61 62 6c 65 74   )j...!!...tablet
+|   3888: 31 5f 63 6f 6e 74 65 6e 74 74 31 5f 63 6f 6e 74   1_contentt1_cont
+|   3904: 65 6e 74 03 43 52 45 41 54 45 20 54 41 42 4c 45   ent.CREATE TABLE
+|   3920: 20 27 74 31 5f 63 6f 6e 74 65 6e 74 27 28 64 6f    't1_content'(do
+|   3936: 63 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   cid INTEGER PRIM
+|   3952: 41 52 59 20 4b 45 59 2c 20 27 63 30 61 27 2c 20   ARY KEY, 'c0a', 
+|   3968: 27 62 31 62 27 2c 20 27 63 32 63 27 29 38 02 06   'b1b', 'c2c')8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 33   LE t1 USING fts3
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 00 00 00 00 00 00   (a,b,c).........
+| page 3 offset 8192
+|      0: 0d 00 00 00 25 0b 48 00 0f d8 0f af 0f 86 0f 74   ....%.H........t
+|     16: 0f 61 0f 4e 0f 2f 0f 0f 0e ef 0e d7 0e be 0e a5   .a.N./..........
+|     32: 0e 8d 0e 74 0e 5b 0e 40 0e 24 0e 08 0d ef 0d d5   ...t.[.@.$......
+|     48: 0d bb 0d a0 0d 84 0d 00 00 00 00 00 00 00 00 00   ................
+|   2880: 00 00 00 00 00 00 00 00 81 f9 25 06 00 82 7f 00   ..........%.....
+|   2896: 00 43 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e   .COMPILER=gcc-5.
+|   2912: 34 2e 30 20 32 30 31 36 30 36 30 39 20 44 45 42   4.0 20160609 DEB
+|   2928: 55 47 20 45 4e 41 42 4c 45 20 44 42 53 54 41 54   UG ENABLE DBSTAT
+|   2944: 20 56 54 41 42 20 45 4e 41 42 4c 45 20 46 54 53    VTAB ENABLE FTS
+|   2960: 34 20 45 4e 41 42 4c 45 20 46 54 53 35 20 45 4e   4 ENABLE FTS5 EN
+|   2976: 41 42 4c 45 20 47 45 4f 50 4f 4c 59 20 45 4e 41   ABLE GEOPOLY ENA
+|   2992: 42 4c 45 20 4a 53 4f 4e 31 20 45 4e 41 42 4c 45   BLE JSON1 ENABLE
+|   3008: 20 4d 45 4d 53 59 53 35 20 45 4e 41 42 4c 45 20    MEMSYS5 ENABLE 
+|   3024: 52 54 52 45 45 20 4d 41 58 20 4d 45 4d 4f 52 59   RTREE MAX MEMORY
+|   3040: 3d 37 a0 30 30 30 30 f2 30 20 4f 4d 49 54 20 4c   =7.0000.0 OMIT L
+|   3056: 4f 41 44 20 45 58 54 45 4e 53 49 4f 4e 20 54 48   OAD EXTENSION TH
+|   3072: 52 45 41 44 53 41 46 45 3d 30 18 24 05 00 25 0f   READSAFE=0.$..%.
+|   3088: 19 54 48 52 45 41 44 53 41 46 45 3d 30 58 42 49   .THREADSAFE=0XBI
+|   3104: 4e 41 52 59 18 23 05 00 25 0f 19 54 48 52 45 41   NARY.#..%..THREA
+|   3120: 44 53 41 46 45 3d 30 58 4e 4f 43 41 53 45 17 22   DSAFE=0XNOCASE..
+|   3136: 05 00 25 0f 17 54 48 52 45 41 54 53 41 46 45 3d   ..%..THREATSAFE=
+|   3152: 30 58 52 54 52 49 4d 1f 21 05 00 33 0f 19 4f 4d   0XRTRIM.!..3..OM
+|   3168: 49 54 20 5c 4f 41 44 20 45 58 54 45 4e 53 49 4f   IT .OAD EXTENSIO
+|   3184: 4e 58 42 49 4e 41 52 59 1f 20 05 00 33 0f 19 4f   NXBINARY. ..3..O
+|   3200: 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49   MIT LOAD EXTENSI
+|   3216: 4f 4e 58 4e 4f 43 41 53 46 1e 1f 05 00 33 0f 17   ONXNOCASF....3..
+|   3232: 4f 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53   OMIT LOAD EXTENS
+|   3248: 49 4f 4e 58 52 44 52 49 4d 1f 1e 05 00 33 0f 19   IONXRDRIM....3..
+|   3264: 4d 41 68 20 4d 45 4d 4f 52 59 3d 35 30 30 30 30   MAh MEMORY=50000
+|   3280: 30 30 30 58 42 49 4e 41 52 59 1f 1d 05 00 33 0f   000XBINARY....3.
+|   3296: 19 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30   .MAX MEMORY=5000
+|   3312: 30 30 30 30 58 4e 4f 43 41 53 45 1e 1c 05 00 33   0000XNOCASE....3
+|   3328: 0f 16 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30   ..MAX MEMORY=500
+|   3344: 30 30 30 30 30 58 52 54 52 49 4d 18 1b 05 00 25   00000XRTRIM....%
+|   3360: 0f 19 45 4e 41 42 4c 45 20 52 54 52 45 45 58 42   ..ENABLE RTREEXB
+|   3376: 49 4e 41 52 59 18 1a 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3392: 4c 45 20 52 54 52 45 45 58 4e 4f 43 41 53 45 17   LE RTREEXNOCASE.
+|   3408: 19 05 00 25 0f 17 45 4e 41 42 4c 45 20 52 54 52   ...%..ENABLE RTR
+|   3424: 45 45 58 52 54 52 49 4d 1a 18 05 00 29 0f 19 45   EEXRTRIM....)..E
+|   3440: 4e 41 42 4c 45 20 4d 45 43 53 59 53 35 58 42 49   NABLE MECSYS5XBI
+|   3456: 4e 41 52 59 1a 17 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3472: 45 20 4d 45 4d 53 59 53 35 58 4e 4f 43 41 53 45   E MEMSYS5XNOCASE
+|   3488: 19 16 05 00 29 0f 17 45 4e 41 42 4c 45 20 4d 45   ....)..ENABLE ME
+|   3504: 4d 53 59 53 35 58 52 54 52 49 4d 18 15 05 00 25   MSYS5XRTRIM....%
+|   3520: 0f 19 45 4e 41 42 4c 45 20 4a 53 4f 4e 31 58 42   ..ENABLE JSON1XB
+|   3536: 49 4e 41 52 59 18 14 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3552: 4c 45 20 4a 53 4f 4e 31 58 4e 4f 43 41 53 45 17   LE JSON1XNOCASE.
+|   3568: 13 05 00 25 0f 17 45 4e 41 42 4c 45 20 4a 53 4f   ...%..ENABLE JSO
+|   3584: 4e 31 58 52 54 52 49 4d 1a 12 05 00 29 0f 19 45   N1XRTRIM....)..E
+|   3600: 4e 41 42 4c 45 20 47 45 4f 50 4f 4c 59 58 42 49   NABLE GEOPOLYXBI
+|   3616: 4e 41 52 59 1a 11 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3632: 45 20 47 45 4f 50 4f 4c 59 58 4e 4f 43 41 53 45   E GEOPOLYXNOCASE
+|   3648: 19 10 05 00 29 0f 17 45 4e 41 42 4c 45 20 47 45   ....)..ENABLE GE
+|   3664: 4f 50 4f 4c 59 58 52 54 52 49 4d 17 0f 05 00 23   OPOLYXRTRIM....#
+|   3680: 0f 19 45 4e 41 42 4c 45 20 46 54 53 35 58 42 49   ..ENABLE FTS5XBI
+|   3696: 4e 41 52 59 17 0e 05 00 23 0f 19 45 4e 41 42 4c   NARY....#..ENABL
+|   3712: 45 20 46 54 53 35 58 4e 4f 43 41 53 45 16 0d 05   E FTS5XNOCASE...
+|   3728: 00 23 0f 17 45 4e 41 42 4c 45 20 46 54 53 35 58   .#..ENABLE FTS5X
+|   3744: 52 54 52 49 4d 17 0c 05 00 23 0f 19 45 4e 41 42   RTRIM....#..ENAB
+|   3760: 4c 45 20 46 54 53 34 58 42 49 4e 41 52 59 17 0b   LE FTS4XBINARY..
+|   3776: 05 00 23 0f 19 45 4e 41 42 4c 45 20 46 54 53 34   ..#..ENABLE FTS4
+|   3792: 58 4e 4f 43 41 53 45 16 0a 05 00 23 0f 17 45 4e   XNOCASE....#..EN
+|   3808: 41 42 4c 46 20 46 54 53 34 58 52 54 52 49 4d 1e   ABLF FTS4XRTRIM.
+|   3824: 09 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3840: 54 41 54 20 56 54 41 42 58 42 49 4e 41 52 59 1e   TAT VTABXBINARY.
+|   3856: 08 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3872: 55 41 54 20 56 54 41 42 58 4e 4f 43 41 53 45 1d   UAT VTABXNOCASE.
+|   3888: 07 05 00 31 0f 17 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3904: 54 41 54 20 56 54 41 42 58 52 54 52 49 4d 11 06   TAT VTABXRTRIM..
+|   3920: 05 00 17 0f 19 44 45 42 55 47 58 42 49 4e 41 52   .....DEBUGXBINAR
+|   3936: 59 11 05 05 00 17 0f 19 44 45 42 55 47 58 4e 4f   Y.......DEBUGXNO
+|   3952: 43 41 53 45 10 04 05 00 17 0f 17 44 45 42 55 47   CASE.......DEBUG
+|   3968: 58 52 54 52 49 4d 27 03 05 00 43 0f 19 43 4f 4d   XRTRIM'...C..COM
+|   3984: 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e 30 20   PILER=gcc-5.4.0 
+|   4000: 32 30 31 36 30 36 30 39 58 42 49 4e 41 52 59 27   20160609XBINARY'
+|   4016: 02 05 00 43 0f 19 43 4f 4d 50 49 4c 45 52 3d 67   ...C..COMPILER=g
+|   4032: 63 63 2d 35 2e 34 2e 30 20 32 30 31 36 30 36 30   cc-5.4.0 2016060
+|   4048: 39 58 4e 4f 43 41 53 45 00 00 00 00 00 00 00 00   9XNOCASE........
+| page 5 offset 16384
+|      0: 0d 00 00 00 02 0b a0 00 0c ad 0b a0 00 00 00 00   ................
+|   2976: 82 0a 02 08 08 09 08 08 17 84 06 30 20 32 35 33   ...........0 253
+|   2992: 00 01 30 04 25 06 1b 00 00 08 32 30 31 36 30 36   ..0.%.....201606
+|   3008: 30 39 03 25 07 00 00 01 34 03 25 05 00 00 01 35   09.%....4.%....5
+|   3024: 03 25 04 00 01 07 30 30 30 30 30 30 30 03 25 1a   .%....0000000.%.
+|   3040: 00 00 08 63 6f 6d 70 69 6c 65 72 03 25 02 00 00   ...compiler.%...
+|   3056: 06 64 62 73 74 61 74 03 25 0a 00 01 04 65 62 75   .dbstat.%....ebu
+|   3072: 67 03 25 08 00 00 06 65 6e 61 62 6c 65 09 25 09   g.%....enable.%.
+|   3088: 05 04 04 04 04 04 00 01 08 78 74 65 6e 73 69 6f   .........xtensio
+|   3104: 6e 03 25 1d 00 00 04 66 74 73 34 03 25 0d 00 03   n.%....fts4.%...
+|   3120: 01 35 03 25 0f 00 00 03 67 63 63 03 25 03 00 01   .5.%....gcc.%...
+|   3136: 06 65 6f 70 6f 6c 79 03 25 11 00 00 05 6a 73 6f   .eopoly.%....jso
+|   3152: 6e 31 03 25 13 00 00 04 6c 6f 61 64 03 25 1c 00   n1.%....load.%..
+|   3168: 00 03 6d 61 78 03 25 18 00 01 05 65 6d 6f 72 79   ..max.%....emory
+|   3184: 03 25 19 00 03 04 73 79 73 35 03 25 15 00 00 04   .%....sys5.%....
+|   3200: 6f 6d 69 74 03 25 1b 00 00 05 72 74 72 65 65 03   omit.%....rtree.
+|   3216: 25 17 00 00 0a 74 68 72 65 61 64 73 61 66 65 03   %....threadsafe.
+|   3232: 25 1e 00 00 04 76 74 61 62 03 25 0b 00 86 50 01   %....vtab.%...P.
+|   3248: 08 08 08 08 08 17 8d 12 30 20 38 33 35 00 01 30   ........0 835..0
+|   3264: 12 01 06 00 01 06 00 01 06 00 1f 03 00 01 03 00   ................
+|   3280: 01 03 00 00 08 32 30 31 36 30 36 30 39 09 01 07   .....20160609...
+|   3296: 00 01 07 00 01 07 00 00 01 34 09 01 05 00 01 05   .........4......
+|   3312: 00 01 05 00 00 01 35 09 01 04 00 01 04 00 01 04   ......5.........
+|   3328: 00 01 07 30 30 30 30 30 30 30 09 1c 04 00 01 04   ...0000000......
+|   3344: 00 01 04 00 00 06 62 69 6e 61 72 79 3c 03 01 02   ......binary<...
+|   3360: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3376: 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00   ................
+|   3392: 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03   ................
+|   3408: 01 02 02 00 03 01 02 02 00 00 08 63 6f 38 70 69   ...........co8pi
+|   3424: 6c 65 72 09 01 02 00 01 02 00 01 02 00 00 06 64   ler............d
+|   3440: 52 73 74 61 74 09 07 03 00 01 03 00 01 03 00 01   Rstat...........
+|   3456: 04 65 62 75 67 09 04 02 00 01 02 00 01 02 00 00   .ebug...........
+|   3472: 06 65 6e 61 62 6c 65 3f 07 02 00 01 02 00 01 01   .enable?........
+|   3488: ff f1 02 00 01 02 00 01 02 00 01 02 00 01 02 00   ................
+|   3504: 01 02 00 01 03 00 01 01 00 02 02 00 01 02 00 01   ................
+|   3520: 02 00 01 02 00 01 12 00 01 02 00 01 02 00 01 02   ................
+|   3536: 00 01 02 00 01 02 00 01 08 78 74 65 6e 73 69 6f   .........xtensio
+|   3552: 6e 09 1f 04 00 01 04 00 01 04 00 00 04 66 74 73   n............fts
+|   3568: 34 09 0a 03 00 01 03 00 01 04 00 03 01 35 09 0d   4............5..
+|   3584: 03 00 01 03 00 01 03 00 00 03 67 63 63 09 01 03   ..........gcc...
+|   3600: 00 01 03 0b 01 13 00 01 06 65 6f 70 6f 6c 79 09   .........eopoly.
+|   3616: 10 03 00 01 03 00 01 03 00 00 05 6a 83 6f 6e 31   ...........j.on1
+|   3632: 09 13 03 00 01 03 00 01 03 00 00 04 6c 6f 61 64   ............load
+|   3648: 09 1f 03 00 01 03 00 01 03 00 00 03 6d 61 78 09   ............max.
+|   3664: 1c 02 00 01 02 00 01 02 00 01 05 65 6d 6f 72 79   ...........emory
+|   3680: 09 1c 03 00 01 03 00 01 03 00 03 04 73 79 73 35   ............sys5
+|   3696: 09 16 03 00 01 03 00 01 03 00 00 06 6e 6f 63 61   ............noca
+|   3712: 73 65 3c 02 01 02 02 00 03 01 02 02 00 03 01 02   se<.............
+|   3728: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3744: 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00   ................
+|   3760: 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00 00   ................
+|   3776: 04 6f 6d 69 74 09 1f 02 00 01 02 00 01 02 00 00   .omit...........
+|   3792: 05 72 74 72 65 65 09 19 03 00 01 03 00 01 03 00   .rtree..........
+|   3808: 03 02 69 6d 3c 01 01 02 02 00 03 01 02 02 00 03   ..im<...........
+|   3824: 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01   ................
+|   3840: 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02   ................
+|   3856: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3872: 00 00 0a 74 68 72 65 61 64 73 61 66 65 09 22 02   ...threadsafe...
+|   3888: 00 01 02 00 01 02 00 00 04 76 74 61 62 09 07 04   .........vtab...
+|   3904: 00 01 04 00 01 04 00 00 01 78 b4 01 01 01 01 02   .........x......
+|   3920: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+|   3936: 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01   ................
+|   3952: 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01   ................
+|   3968: 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01   ................
+|   3984: 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02   ................
+|   4000: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+|   4016: 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01   ................
+|   4032: 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01   ................
+|   4048: 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01   ................
+|   4064: 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02   ................
+|   4080: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 02 0f f5 00 0f fb 0f f5 00 00 00 00   ................
+|   4080: 00 00 00 00 00 05 04 08 09 01 02 04 04 08 08 09   ................
+| page 7 offset 24576
+|      0: 0d 00 00 00 05 0f b8 00 0f f4 0f 00 00 00 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 0d 05 02 23 61 75 74 6f   ...........#auto
+|   4032: 6d 65 72 67 65 3d 35 0d 04 02 23 6d 65 72 67 65   merge=5...#merge
+|   4048: 3d 31 30 30 2c 38 11 03 02 2b 69 6e 74 65 67 72   =100,8...+integr
+|   4064: 69 74 79 2d 63 68 65 63 6b 09 02 02 00 00 00 00   ity-check.......
+| end crash-14ab65782c9c45.db
+}]} {}
+
+do_execsql_test 50.1 {
+  SELECT NULL FROM t1 WHERE t1 MATCH '"^enable"'
+} {
+  {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {}
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_test 51.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 28672 pagesize 4096 filename crash-11cf359576eb28.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 07   .....@  ........
+|     32: 00 00 00 02 00 00 00 01 00 00 00 07 00 00 00 04   ................
+|     96: 00 00 00 00 0d 0e b1 00 06 0d a4 00 0f 8d 0f 21   ...............!
+|    112: 0e b9 0d c8 0e 7e 0d a4 0d a4 00 00 00 00 00 00   .....~..........
+|   3488: 00 00 00 00 22 07 06 17 11 11 01 31 74 61 62 6c   ...........1tabl
+|   3504: 65 74 32 74 32 07 43 52 45 41 54 45 20 54 41 42   et2t2.CREATE TAB
+|   3520: 4c 45 20 74 32 28 78 29 81 33 05 07 17 1f 1f 01   LE t2(x).3......
+|   3536: 82 35 74 61 62 6c 65 74 31 5f 73 65 67 64 69 72   .5tablet1_segdir
+|   3552: 74 31 5f 73 65 67 64 69 72 05 43 52 45 41 54 45   t1_segdir.CREATE
+|   3568: 20 54 41 42 4c 45 20 27 74 31 5f 73 65 67 64 69    TABLE 't1_segdi
+|   3584: 72 27 28 6c 65 76 65 6c 20 49 4e 54 45 47 45 52   r'(level INTEGER
+|   3600: 2c 69 64 78 20 49 4e 54 45 47 45 52 2c 73 74 61   ,idx INTEGER,sta
+|   3616: 72 74 5f 62 6c 6f 63 6b 20 49 4e 54 45 47 45 52   rt_block INTEGER
+|   3632: 2c 6c 65 61 76 65 73 5f 65 6e 64 5f 62 6c 6f 63   ,leaves_end_bloc
+|   3648: 6b 20 49 4e 54 45 47 45 52 2c 65 6e 64 5f 62 6c   k INTEGER,end_bl
+|   3664: 6f 63 6b 20 49 4e 54 45 47 45 52 2c 72 6f 6f 74   ock INTEGER,root
+|   3680: 20 42 4c 4f 42 2c 50 52 49 4d 41 52 59 20 4b 45    BLOB,PRIMARY KE
+|   3696: 59 28 6c 65 76 65 6c 2c 20 69 64 78 29 29 31 06   Y(level, idx))1.
+|   3712: 06 17 45 1f 01 00 69 6e 64 65 78 73 71 6c 69 74   ..E...indexsqlit
+|   3728: 65 5f 61 75 74 6f 69 6e 64 65 78 5f 74 31 5f 73   e_autoindex_t1_s
+|   3744: 65 67 64 69 72 5f 31 74 31 5f 73 65 67 64 69 72   egdir_1t1_segdir
+|   3760: 06 0f c7 00 08 00 00 00 00 66 04 07 17 23 23 01   .........f...##.
+|   3776: 81 13 74 61 62 6c 65 74 31 5f 73 65 67 6d 65 6e   ..tablet1_segmen
+|   3792: 74 73 74 31 5f 73 65 67 6d 65 6e 74 73 04 43 52   tst1_segments.CR
+|   3808: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 73   EATE TABLE 't1_s
+|   3824: 65 67 6d 65 6e 74 73 27 28 62 6c 6f 63 6b 69 64   egments'(blockid
+|   3840: 20 49 4e 54 45 47 45 52 20 50 51 49 4d 41 52 59    INTEGER PQIMARY
+|   3856: 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42    KEY, block BLOB
+|   3872: 29 6a 03 07 17 21 21 01 81 1f 74 61 62 6c 65 74   )j...!!...tablet
+|   3888: 31 5f 63 6f 6e 74 65 6e 74 74 31 5f 63 6f 6e 74   1_contentt1_cont
+|   3904: 65 6e 74 03 43 52 45 41 54 45 20 54 41 42 4c 45   ent.CREATE TABLE
+|   3920: 20 27 74 31 5f 63 6f 6e 74 65 6e 74 27 28 64 6f    't1_content'(do
+|   3936: 63 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   cid INTEGER PRIM
+|   3952: 41 52 59 20 4b 45 59 2c 20 27 63 30 61 27 2c 20   ARY KEY, 'c0a', 
+|   3968: 27 63 31 62 27 2c 20 27 63 32 63 27 29 38 02 06   'c1b', 'c2c')8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 33   LE t1 USING fts3
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 00 00 00 00 00 00   (a,b,c).........
+| page 3 offset 8192
+|      0: 0d 00 00 00 25 0b 48 00 0f d8 0f af 0f 86 0f 74   ....%.H........t
+|     16: 0f 61 0f 4e 0f 2f 0f 0f 0e ef 0e d7 0e be 0e a5   .a.N./..........
+|     32: 0e 8d 0e 74 0e 5b 0e 40 0e 24 0e 08 0d ef 0d d5   ...t.[.@.$......
+|     48: 0d bb 0d a0 0d 84 0d 68 0d 4f 0d 35 0d 1b 0c fb   .......h.O.5....
+|     64: 0c da 0c b9 0c 99 0c 78 0c 57 0c 3e 0c 24 0c 0a   .......x.W.>.$..
+|     80: 0b 48 00 00 00 00 00 00 00 00 00 00 00 00 00 00   .H..............
+|   2880: 00 00 00 00 00 00 00 00 81 3f 25 06 00 82 7f 00   .........?%.....
+|   2896: 00 43 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e   .COMPILER=gcc-5.
+|   2912: 34 2e 30 20 32 30 31 36 30 36 30 39 20 44 45 42   4.0 20160609 DEB
+|   2928: 55 47 20 45 4e 41 42 4c 45 20 44 42 53 54 41 54   UG ENABLE DBSTAT
+|   2944: 20 56 54 41 42 20 45 4e 41 42 4c 45 20 46 54 53    VTAB ENABLE FTS
+|   2960: 34 20 45 4e 41 42 4c 45 20 46 54 53 35 20 45 4e   4 ENABLE FTS5 EN
+|   2976: 41 42 4c 45 20 47 45 4f 59 0f 4c 59 20 45 4e 41   ABLE GEOY.LY ENA
+|   2992: 42 4c 45 20 4a 53 4f 4e 31 20 45 4e 41 42 4c 45   BLE JSON1 ENABLE
+|   3008: 20 4d 45 4d 53 59 53 35 20 45 4e 41 42 4c 45 20    MEMSYS5 ENABLE 
+|   3024: 52 54 52 45 45 20 4d 41 58 20 4d 45 4d 4f 52 59   RTREE MAX MEMORY
+|   3040: 3d 35 30 30 30 30 30 30 30 20 4f 4d 49 54 20 4d   =50000000 OMIT M
+|   3056: 4f 41 44 20 45 58 54 45 4e 53 49 4f 4e 20 54 48   OAD EXTENSION TH
+|   3072: 52 45 41 44 53 41 46 45 3d 30 18 24 05 00 25 0f   READSAFE=0.$..%.
+|   3088: 19 54 48 52 45 41 44 53 41 46 45 3d 30 58 42 49   .THREADSAFE=0XBI
+|   3104: 4e 41 52 59 18 23 05 00 25 0f 19 54 48 52 45 41   NARY.#..%..THREA
+|   3120: 44 53 41 46 45 3d 30 58 4e 4f 43 41 53 45 17 22   DSAFE=0XNOCASE..
+|   3136: 05 00 25 0f 17 54 48 52 45 41 44 53 41 46 45 3d   ..%..THREADSAFE=
+|   3152: 30 58 52 54 52 49 4d 1f 21 05 00 33 0f 19 4f 4d   0XRTRIM.!..3..OM
+|   3168: 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49 4f   IT LOAD EXTENSIO
+|   3184: 4e 58 42 49 4e 41 52 59 1f 20 05 00 33 0f 19 4f   NXBINARY. ..3..O
+|   3200: 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49   MIT LOAD EXTENSI
+|   3216: 4f 4e 58 4e 4f 43 41 53 45 1e 1f 05 00 33 0f 17   ONXNOCASE....3..
+|   3232: 4f 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53   OMIT LOAD EXTENS
+|   3248: 49 4f 4e 58 52 54 52 49 4d 1f 1e 05 00 33 0f 19   IONXRTRIM....3..
+|   3264: 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30 30   MAX MEMORY=50000
+|   3280: 30 30 30 58 42 49 4e 41 52 59 1f 1d 05 00 33 0f   000XBINARY....3.
+|   3296: 19 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30 30   .MAX MEMORY=5000
+|   3312: 30 30 30 30 58 4e 4f 43 41 53 45 1e 1c 05 00 33   0000XNOCASE....3
+|   3328: 0f 17 4d 41 58 20 4d 45 4d 4f 52 59 3d 35 30 30   ..MAX MEMORY=500
+|   3344: 30 30 30 30 30 58 52 54 52 49 4d 18 1b 05 00 25   00000XRTRIM....%
+|   3360: 0f 19 45 4e 41 42 4c 45 20 52 54 52 45 45 58 42   ..ENABLE RTREEXB
+|   3376: 49 4e 41 52 59 18 1a 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3392: 4c 45 20 52 54 52 45 45 58 4e 4f 43 41 53 45 17   LE RTREEXNOCASE.
+|   3408: 19 05 00 25 0f 17 45 4e 41 42 4c 45 20 52 54 52   ...%..ENABLE RTR
+|   3424: 45 45 58 52 54 52 49 4d 1a 18 05 00 29 0f 19 45   EEXRTRIM....)..E
+|   3440: 4e 41 42 4c 45 20 4d 45 4d 53 59 53 35 58 42 49   NABLE MEMSYS5XBI
+|   3456: 4e 41 52 59 1a 17 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3472: 45 20 4d 45 4d 53 59 53 35 58 4e 4f 43 41 53 45   E MEMSYS5XNOCASE
+|   3488: 19 16 05 00 29 0f 17 45 4e 41 42 4c 45 20 4d 45   ....)..ENABLE ME
+|   3504: 4d 53 59 53 35 58 52 54 52 49 4d 18 15 05 00 25   MSYS5XRTRIM....%
+|   3520: 0f 19 45 4e 41 42 4c 45 20 4a 53 4f 4e 31 58 42   ..ENABLE JSON1XB
+|   3536: 49 4e 41 52 59 18 14 05 00 25 0f 19 45 4e 41 42   INARY....%..ENAB
+|   3552: 4c 45 20 4a 53 4f 4e 31 58 4e 4f 43 41 53 45 17   LE JSON1XNOCASE.
+|   3568: 13 05 00 25 0f 17 45 4e 41 42 4c 45 20 4a 53 4f   ...%..ENABLE JSO
+|   3584: 4e 31 58 52 54 52 49 4d 1a 12 05 00 29 0f 19 45   N1XRTRIM....)..E
+|   3600: 4e 41 42 4c 45 20 47 45 4f 50 4f 4c 59 58 42 49   NABLE GEOPOLYXBI
+|   3616: 4e 41 52 59 1a 11 05 00 29 0f 19 45 4e 41 42 4c   NARY....)..ENABL
+|   3632: 45 20 47 45 4f 50 4f 4c 59 58 4e 4f 43 41 53 45   E GEOPOLYXNOCASE
+|   3648: 19 10 05 00 29 0f 17 45 4e 41 42 4c 45 20 47 45   ....)..ENABLE GE
+|   3664: 4f 50 4f 4c 59 58 52 54 52 49 4d 17 0f 05 00 23   OPOLYXRTRIM....#
+|   3680: 0f 19 45 4e 41 42 4c 45 20 46 54 53 35 58 42 49   ..ENABLE FTS5XBI
+|   3696: 4e 41 52 59 17 0e 05 00 23 0f 19 45 4e 41 42 4c   NARY....#..ENABL
+|   3712: 45 20 46 54 53 35 58 4e 4f 43 41 53 45 16 0d 05   E FTS5XNOCASE...
+|   3728: 00 23 0f 17 45 4e 41 42 4c 45 20 46 54 53 35 58   .#..ENABLE FTS5X
+|   3744: 52 54 52 49 4d 17 0c 05 00 23 0f 19 45 4e 41 42   RTRIM....#..ENAB
+|   3760: 4c 45 20 46 54 53 34 58 42 49 4e 41 52 59 17 0b   LE FTS4XBINARY..
+|   3776: 05 00 23 0f 19 45 4e 41 42 4c 45 20 46 54 53 34   ..#..ENABLE FTS4
+|   3792: 58 4e 4f 43 41 53 45 16 0a 05 00 23 0f 17 45 4e   XNOCASE....#..EN
+|   3808: 41 42 4c 45 20 46 54 53 34 58 52 54 52 49 4d 1e   ABLE FTS4XRTRIM.
+|   3824: 09 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3840: 54 41 54 20 56 54 41 42 58 42 49 4e 41 52 59 1e   TAT VTABXBINARY.
+|   3856: 08 05 00 31 0f 19 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3872: 54 41 54 20 56 54 41 42 58 4e 4f 43 41 53 45 1d   TAT VTABXNOCASE.
+|   3888: 07 05 00 31 0f 17 45 4e 41 42 4c 45 20 44 42 53   ...1..ENABLE DBS
+|   3904: 54 41 54 20 56 54 41 42 58 52 54 52 49 4d 11 06   TAT VTABXRTRIM..
+|   3920: 05 00 17 0f 19 44 45 42 55 47 58 42 49 4e 41 52   .....DEBUGXBINAR
+|   3936: 59 11 05 05 00 17 0f 19 44 45 42 55 47 58 4e 4f   Y.......DEBUGXNO
+|   3952: 43 41 53 45 10 04 05 00 17 0f 17 44 45 42 55 47   CASE.......DEBUG
+|   3968: 58 52 54 52 49 4d 27 03 05 00 43 10 19 43 4f 4d   XRTRIM'...C..COM
+|   3984: 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e 30 20   PILER=gcc-5.4.0 
+|   4000: 32 30 31 36 30 36 30 39 58 42 49 4e 41 52 59 27   20160609XBINARY'
+|   4016: 02 05 00 43 0f 19 43 4f 4d 50 49 4c 45 52 3d 67   ...C..COMPILER=g
+|   4032: 63 63 2d 35 2e 34 2e 30 20 32 30 31 36 30 36 30   cc-5.4.0 2016060
+|   4048: 39 58 4e 4f 43 41 53 45 26 01 05 00 43 0f 17 43   9XNOCASE&...C..C
+|   4064: 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e 34 2e   OMPILER=gcc-5.4.
+|   4080: 30 20 32 30 31 36 30 36 30 39 58 52 54 52 49 4d   0 20160609XRTRIM
+| page 4 offset 12288
+|      0: 0d 00 00 00 00 10 00 00 00 00 00 00 00 00 00 00   ................
+| page 5 offset 16384
+|      0: 0d 00 00 00 02 0b a0 00 0c ad 0b a0 00 00 00 00   ................
+|   2976: 82 0a 02 08 08 09 08 08 17 84 06 30 20 32 35 33   ...........0 253
+|   2992: 00 01 30 04 25 06 1b 00 00 08 32 30 31 36 30 36   ..0.%.....201606
+|   3008: 30 39 03 25 07 00 00 01 34 03 25 05 00 00 01 35   09.%....4.%....5
+|   3024: 03 25 04 00 01 07 30 30 30 30 30 30 30 03 25 1a   .%....0000000.%.
+|   3040: 00 00 08 63 6f 6d 70 69 6c 65 72 03 25 02 00 00   ...compiler.%...
+|   3056: 06 64 62 73 74 61 74 03 25 0a 00 01 04 65 62 75   .dbstat.%....ebu
+|   3072: 67 03 25 08 00 00 06 65 6e 61 62 6c 65 09 25 09   g.%....enable.%.
+|   3088: 05 04 04 04 04 04 00 01 08 78 74 65 6e 73 69 6f   .........xtensio
+|   3104: 6e 03 25 1d 00 00 04 66 74 73 34 03 25 0d 00 03   n.%....fts4.%...
+|   3120: 01 35 03 25 0f 00 00 03 67 63 63 03 25 03 00 01   .5.%....gcc.%...
+|   3136: 06 65 6f 70 6f 6c 79 03 25 11 00 00 05 6a 73 6f   .eopoly.%....jso
+|   3152: 6e 31 03 25 13 00 00 04 6c 6f 61 64 03 25 1c 00   n1.%....load.%..
+|   3168: 00 03 6d 61 78 03 25 18 00 01 05 65 6d 6f 72 79   ..max.%....emory
+|   3184: 03 25 19 00 03 04 73 79 73 35 03 25 15 00 00 04   .%....sys5.%....
+|   3200: 6f 6d 69 74 03 25 1b 00 00 05 72 74 72 65 65 03   omit.%....rtree.
+|   3216: 25 17 00 00 0a 74 68 72 65 61 64 73 61 66 65 03   %....threadsafe.
+|   3232: 25 1e 00 00 04 76 74 61 62 03 25 0b 00 86 50 01   %....vtab.%...P.
+|   3248: 08 08 08 08 08 17 8d 12 30 20 38 33 35 00 01 30   ........0 835..0
+|   3264: 12 01 06 00 01 06 00 01 06 00 1f 03 00 01 03 00   ................
+|   3280: 01 03 00 00 08 32 30 31 36 30 36 30 39 09 01 07   .....20160609...
+|   3296: 00 01 07 00 01 07 00 00 01 34 09 01 05 00 01 05   .........4......
+|   3312: 00 01 05 00 00 01 35 09 01 04 00 01 04 00 01 04   ......5.........
+|   3328: 00 01 07 30 30 30 30 30 30 30 09 1c 04 00 01 04   ...0000000......
+|   3344: 00 01 04 00 00 06 62 69 6e 61 72 79 3c 03 01 02   ......binary<...
+|   3360: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3376: 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02 5f   ..............._
+|   3392: 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03   ................
+|   3408: 01 02 02 00 03 01 02 02 00 00 08 63 6f 6d 70 69   ...........compi
+|   3424: 6c 65 72 09 01 02 00 01 02 00 01 02 00 00 06 64   ler............d
+|   3440: 62 73 74 61 74 09 07 03 00 01 03 00 01 03 00 01   bstat...........
+|   3456: 04 65 62 75 67 09 04 02 00 01 02 00 01 02 00 00   .ebug...........
+|   3472: 06 65 6e 61 62 6c 65 3f 07 02 00 01 02 00 01 02   .enable?........
+|   3488: 00 01 02 00 01 02 00 01 02 00 01 02 00 01 02 00   ................
+|   3504: 01 02 00 01 02 00 01 02 00 01 02 00 01 02 00 01   ................
+|   3520: 02 00 01 01 00 01 02 00 01 02 00 01 02 00 01 02   ................
+|   3536: 00 01 02 00 01 02 00 01 08 78 74 65 6e 73 69 6f   .........xtensio
+|   3552: 6e 09 1f 04 00 01 04 00 01 04 00 00 04 66 74 73   n............fts
+|   3568: 34 09 0a 03 00 01 03 00 01 03 00 03 01 35 09 0d   4............5..
+|   3584: 03 00 01 03 00 01 03 00 00 03 67 63 63 09 01 03   ..........gcc...
+|   3600: 00 01 03 00 01 03 00 01 06 65 6f 70 6f 6c 79 09   .........eopoly.
+|   3616: 10 03 00 01 03 00 01 03 00 00 05 6a 73 6f 6e 31   ...........json1
+|   3632: 09 13 03 00 01 03 00 01 03 00 00 04 6c 6f 61 64   ............load
+|   3648: 09 1f 03 00 01 03 00 01 03 00 00 03 6d 61 78 09   ............max.
+|   3664: 1c 02 00 01 02 00 01 02 00 01 05 65 6d 6f 72 79   ...........emory
+|   3680: 09 1c 03 00 01 03 00 01 03 00 03 04 73 79 73 35   ............sys5
+|   3696: 09 16 03 00 01 03 00 01 03 00 00 06 6e 6f 63 61   ............noca
+|   3712: 73 65 3c 02 01 02 02 00 03 01 02 02 00 03 01 02   se<.............
+|   3728: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3744: 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00   ................
+|   3760: 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00 00   ................
+|   3776: 04 6f 6d 69 74 09 1f 02 00 01 02 00 01 02 00 00   .omit...........
+|   3792: 05 72 74 72 65 65 09 19 03 00 01 03 00 01 03 00   .rtree..........
+|   3808: 03 02 69 6d 3c 01 01 02 02 00 03 01 02 02 00 03   ..im<...........
+|   3824: 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01   ................
+|   3840: 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02   ................
+|   3856: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3872: 00 00 0a 74 68 72 65 61 64 73 61 66 65 09 22 02   ...threadsafe...
+|   3888: 00 01 02 00 01 02 00 00 04 76 74 61 62 09 07 04   .........vtab...
+|   3904: 00 01 04 00 01 04 00 00 01 78 b4 01 01 01 01 02   .........x......
+|   3920: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+|   3936: 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01   ................
+|   3952: 01 01 03 00 01 01 01 02 00 01 01 01 02 00 01 01   ................
+|   3968: 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01   ................
+|   3984: 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02   ................
+|   4000: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+|   4016: 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01   ................
+|   4032: 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01   ................
+|   4048: 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01   ................
+|   4064: 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02   ................
+|   4080: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 02 0f f5 00 0f fb 0f f5 00 00 00 00   ................
+|   4080: 00 00 00 00 00 05 04 08 09 01 02 04 04 08 08 09   ................
+| page 7 offset 24576
+|      0: 0d 00 00 00 05 0f b8 00 0f f4 0f e9 0f d6 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 0d 05 02 23 61 75 74 6f   ...........#auto
+|   4032: 6d 65 72 67 65 3d 35 0d 04 02 23 6d 65 72 67 65   merge=5...#merge
+|   4048: 3d 31 30 30 2c 38 11 03 02 2b 69 6e 74 65 67 72   =100,8...+integr
+|   4064: 69 74 79 2d 63 68 65 63 6b 09 02 02 1b 72 65 62   ity-check....reb
+|   4080: 75 69 6c 64 0a 01 02 1d 6f 70 74 69 6d 69 7a 65   uild....optimize
+| end crash-11cf359576eb28.db
+}]} {}
+
+set saved $sqlite_fts3_enable_parentheses
+set sqlite_fts3_enable_parentheses 1
+do_catchsql_test 51.1 {
+  SELECT 'xyzzy',offsets(t1) FROM t1 WHERE t1 MATCH 'rtree OR json1''rtree NEAR "json1 enable"';
+} {1 {database disk image is malformed}}
+set sqlite_fts3_enable_parentheses $saved
+
+#-------------------------------------------------------------------------
+#
+set saved $sqlite_fts3_enable_parentheses
+set sqlite_fts3_enable_parentheses 1
+reset_db
+do_test 52.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 28672 pagesize 4096 filename crash-fd33f4b1c8348b.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 92 00 00 00 07   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 07 00 00 00 04   ................
+|     96: 00 00 00 00 0d 0e ef 00 08 0d 13 00 0f bd 0f 5f   ..............._
+|    112: 0e f7 0e 06 0e bc 0d a4 0d 4d 0d 13 00 00 00 00   .........M......
+|   3344: 00 00 00 38 08 06 17 11 11 08 5f 74 61 62 6c 65   ...8......_table
+|   3360: 74 32 74 32 43 52 45 41 54 45 20 56 49 52 54 55   t2t2CREATE VIRTU
+|   3376: 41 4c 20 54 41 42 4c 45 20 74 32 20 55 53 49 4e   AL TABLE t2 USIN
+|   3392: 47 20 66 74 73 34 61 75 78 28 74 31 29 55 07 07   G fts4aux(t1)U..
+|   3408: 17 1b 1b 01 81 01 74 61 62 6c 65 74 31 5f 73 74   ......tablet1_st
+|   3424: 61 74 74 31 5f 73 74 61 74 07 43 52 45 41 54 45   att1_stat.CREATE
+|   3440: 20 54 41 42 4c 45 20 27 74 31 5f 73 74 61 74 27    TABLE 't1_stat'
+|   3456: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   (id INTEGER PRIM
+|   3472: 41 52 59 20 4b 45 59 2c 20 76 61 6c 75 65 20 42   ARY KEY, value B
+|   3488: 4c 4f 42 29 60 06 07 17 21 21 01 81 0b 74 61 62   LOB)`...!!...tab
+|   3504: 6c 65 74 31 5f 64 6f 63 73 69 7a 65 74 31 5f 64   let1_docsizet1_d
+|   3520: 6f 63 73 69 7a 65 06 43 52 45 41 54 45 20 54 41   ocsize.CREATE TA
+|   3536: 42 4c 45 20 27 74 31 5f 64 6f 63 73 69 7a 65 27   BLE 't1_docsize'
+|   3552: 28 64 6f 63 69 64 20 49 4e 54 45 47 45 52 20 50   (docid INTEGER P
+|   3568: 52 49 4d 41 52 59 20 4b 45 59 2c 20 73 69 7a 65   RIMARY KEY, size
+|   3584: 20 42 4c 4f 42 29 81 33 04 07 17 1f 1f 01 82 35    BLOB).3.......5
+|   3600: 74 61 62 6c 65 74 31 5f 73 65 67 64 69 72 74 31   tablet1_segdirt1
+|   3616: 5f 73 65 67 64 69 72 04 43 52 45 41 54 45 20 54   _segdir.CREATE T
+|   3632: 41 42 4c 45 20 27 74 31 5f 73 65 67 64 69 72 27   ABLE 't1_segdir'
+|   3648: 28 6c 65 76 65 6c 20 49 4e 54 45 47 45 52 2c 69   (level INTEGER,i
+|   3664: 64 78 20 49 4e 64 45 47 45 52 2c 73 74 61 72 74   dx INdEGER,start
+|   3680: 5f 62 6c 6f 63 6b 20 49 4e 54 45 47 45 52 2c 6c   _block INTEGER,l
+|   3696: 65 61 76 65 73 5f 65 6e 64 5f 62 6c 6f 63 6b 20   eaves_end_block 
+|   3712: 49 4e 54 45 47 45 52 2c 65 6e 64 5f 62 6c 6f 63   INTEGER,end_bloc
+|   3728: 6b 20 49 4e 54 45 47 45 52 2c 72 6f 6f 74 20 42   k INTEGER,root B
+|   3744: 4c 4f 42 2c 50 52 49 4d 41 52 59 20 4b 45 59 28   LOB,PRIMARY KEY(
+|   3760: 6c 65 76 65 6c 2c 20 69 64 78 29 29 31 05 06 17   level, idx))1...
+|   3776: 45 1f 01 00 69 6e 64 65 78 73 71 6c 69 74 65 5f   E...indexsqlite_
+|   3792: 61 75 74 6f 69 6e 64 65 78 5f 74 31 5f 73 65 67   autoindex_t1_seg
+|   3808: 64 69 72 5f 31 74 31 5f 73 65 67 64 69 72 05 00   dir_1t1_segdir..
+|   3824: 00 00 08 00 00 00 00 66 03 07 17 23 23 01 81 13   .......f...##...
+|   3840: 74 61 62 6c 65 74 31 5f 73 65 67 6d 65 6e 74 73   tablet1_segments
+|   3856: 74 31 5f 73 65 67 6d 65 6e 74 73 03 43 52 45 41   t1_segments.CREA
+|   3872: 54 45 20 54 41 42 4c 45 20 27 74 31 5f 73 65 67   TE TABLE 't1_seg
+|   3888: 6d 65 6e 74 73 27 28 62 6c 6f 63 6b 69 64 20 49   ments'(blockid I
+|   3904: 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 4b   NTEGER PRIMARY K
+|   3920: 45 59 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42 29 5c   EY, block BLOB).
+|   3936: 02 07 17 21 21 01 81 03 74 61 62 6c 65 74 31 5f   ...!!...tablet1_
+|   3952: 63 6f 6e 74 65 6e 74 74 31 5f 63 6f 6e 74 65 6e   contentt1_conten
+|   3968: 74 02 43 52 45 41 54 45 20 54 41 42 4c 45 20 27   t.CREATE TABLE '
+|   3984: 74 31 5f 63 6f 6e 74 65 6e 74 27 28 64 6f 63 69   t1_content'(doci
+|   4000: 64 20 49 4e 54 45 47 45 52 e6 50 52 49 4d 41 52   d INTEGER.PRIMAR
+|   4016: 59 20 4b 45 59 2c 20 27 63 30 61 27 29 41 01 06   Y KEY, 'c0a')A..
+|   4032: 17 11 11 08 71 74 61 62 6c 65 74 31 74 31 43 52   ....qtablet1t1CR
+|   4048: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4064: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 34   LE t1 USING fts4
+|   4080: 28 61 2c 70 72 65 66 69 78 3d 27 31 2c 32 27 29   (a,prefix='1,2')
+| page 2 offset 4096
+|      0: 0d 00 00 00 08 0e 22 00 0f c4 0f 00 00 00 00 00   ................
+|   3616: 00 00 42 08 04 00 81 09 73 75 6e 74 20 69 6e 20   ..B.....sunt in 
+|   3632: 63 75 6c 70 61 20 71 75 69 20 6f 66 66 69 63 69   culpa qui offici
+|   3648: 61 20 64 65 73 65 72 75 6e 74 20 6d 6f 6c 6c 69   a deserunt molli
+|   3664: 74 20 61 6e 69 6d 20 69 64 20 65 73 74 20 7c 61   t anim id est |a
+|   3680: 62 6f 72 75 6d 2e 32 07 03 00 6b 45 78 63 65 70   borum.2...kExcep
+|   3696: 74 65 75 72 20 73 69 6e 74 20 6f 63 63 61 65 63   teur sint occaec
+|   3712: 61 74 20 63 75 70 69 64 61 74 61 74 20 6e 6f 6e   at cupidatat non
+|   3728: 20 70 72 6f 69 64 65 6e 74 2c 29 06 03 00 59 63    proident,)...Yc
+|   3744: 69 6c 6c 75 6d 20 64 6f 6c 6f 72 65 20 65 20 66   illum dolore e f
+|   3760: 75 67 69 61 74 20 6e 75 6c 6c 61 20 70 61 72 69   ugiat nulla pari
+|   3776: 61 74 75 72 2e 42 05 04 00 81 09 44 75 69 73 20   atur.B.....Duis 
+|   3792: 61 75 74 65 20 69 72 75 72 65 20 64 6f 6c 6f 72   aute irure dolor
+|   3808: 20 69 6e 20 72 65 60 72 65 68 65 6e 64 65 72 69    in re`rehenderi
+|   3824: 74 20 69 6e 20 76 70 6c 75 70 74 61 74 65 20 76   t in vpluptate v
+|   3840: 65 6c 69 72 c0 65 73 73 65 29 04 03 00 59 6e 69   elir.esse)...Yni
+|   3856: 73 6a 20 75 74 20 61 6c 69 71 75 69 70 20 65 20   sj ut aliquip e 
+|   3872: 65 20 63 6f 6d 6d 6f 64 6f 20 63 6f 6e 73 65 71   e commodo conseq
+|   3888: 75 61 74 2e 46 03 04 00 29 11 55 74 20 65 6e 69   uat.F...).Ut eni
+|   3904: 6d 20 61 64 20 6d 69 6e 69 6d 20 76 65 6e 69 61   m ad minim venia
+|   3920: 6d 2c 20 71 75 69 73 20 6e 6f 73 74 72 75 64 20   m, quis nostrud 
+|   3936: 65 78 65 72 63 69 7a 71 74 69 6f 6e 20 75 6c 6c   exercizqtion ull
+|   3952: 61 6d 63 6f 20 6c 61 62 6f 72 69 73 46 02 04 00   amco laborisF...
+|   3968: 81 11 73 65 64 20 64 6f 20 65 69 75 73 6d 6f 64   ..sed do eiusmod
+|   3984: 20 74 65 6d 70 6f 72 20 69 6e 63 69 64 69 64 75    tempor incididu
+|   4000: 6e 74 20 75 74 20 6c 61 62 6f 72 65 20 65 74 20   nt ut labore et 
+|   4016: 64 6f 6c 6f 72 65 20 6d 61 67 6e 61 20 61 6c 69   dolore magna ali
+|   4032: 71 75 61 2e 3a 01 03 00 7b 4c 6f 72 65 6d 20 69   qua.:....Lorem i
+|   4048: 72 63 75 6d 20 64 6f 6c 6f 72 20 73 69 74 20 61   rcum dolor sit a
+|   4064: 6d 65 74 2c 20 63 6f 6e 78 65 63 74 65 64 75 72   met, conxectedur
+|   4080: 20 61 64 69 70 69 73 00 00 00 00 00 00 00 00 00    adipis.........
+| page 4 offset 12288
+|      0: 0d 00 00 00 03 0a c1 00 0d 61 0c 54 0a c1 00 00   .........a.T....
+|   2752: 00 83 10 03 08 02 08 08 08 17 86 0e 08 00 30 20   ..............0 
+|   2768: 33 38 35 00 02 61 64 06 01 08 00 02 04 00 01 01   385..ad.........
+|   2784: 6c 06 02 0c 00 02 04 00 01 01 6d 03 01 06 10 01   l.........m.....
+|   2800: 01 6e 03 08 09 00 01 01 75 03 05 03 00 00 02 63   .n......u......c
+|   2816: 69 03 06 02 00 01 01 6f 07 01 07 00 03 07 03 00   i......o........
+|   2832: 01 01 75 06 75 05 00 01 04 00 00 02 64 65 03 08   ..u.u.......de..
+|   2848: 07 00 01 01 6f 0d 01 04 00 01 03 09 00 03 05 00   ....o...........
+|   2864: 01 03 00 01 01 75 03 05 02 00 00 02 65 69 03 02   .....u......ei..
+|   2880: 04 00 01 01 6c 03 01 44 00 01 01 6e 03 03 03 00   ....l..D...n....
+|   2896: 01 01 73 06 05 0b 00 03 0b 00 01 01 74 03 02 09   ..s.........t...
+|   2912: 00 01 01 78 06 03 09 00 04 02 00 00 02 66 75 03   ...x.........fu.
+|   2928: 06 05 00 00 02 69 64 03 08 0a 00 01 01 6e 0a 02   .....id......n..
+|   2944: 06 00 03 06 04 00 03 03 00 01 01 70 03 01 03 00   ...........p....
+|   2960: 01 01 72 03 05 04 00 00 02 6c 61 09 02 08 00 01   ..r......la.....
+|   2976: 0b 00 05 0c 00 01 01 6f 03 01 02 00 00 02 6d 61   .......o......ma
+|   2992: 03 02 0b 00 01 01 69 03 03 05 00 01 01 6f 03 08   ......i......o..
+|   3008: 08 00 00 02 6e 69 03 04 02 00 01 01 6f 06 03 08   ....ni......o...
+|   3024: 00 04 06 00 01 01 75 03 06 06 00 00 02 6f 63 03   ......u......oc.
+|   3040: 07 04 00 01 01 66 03 08 06 00 00 02 70 61 03 06   .....f......pa..
+|   3056: 07 00 01 11 72 03 07 07 00 00 02 71 75 06 03 07   ....r......qu...
+|   3072: 00 05 05 00 00 02 72 65 03 05 07 00 00 02 73 65   ......re......se
+|   3088: 03 02 02 00 01 01 69 06 01 05 00 06 03 00 01 01   ......i.........
+|   3104: 75 03 08 02 00 00 02 74 65 03 02 05 00 00 02 75   u......te......u
+|   3120: 6c 13 03 0a 00 01 01 74 09 02 07 00 01 02 00 01   l......t........
+|   3136: 02 ff ff 02 76 65 06 03 06 00 02 0a 00 01 01 6f   ....ve.........o
+|   3152: 03 05 09 00 82 0a 02 08 02 08 08 08 17 84 02 04   ................
+|   3168: 00 30 20 32 35 31 00 01 61 13 01 06 04 00 01 0c   .0 251..a.......
+|   3184: 00 01 04 00 01 04 00 01 03 00 03 09 00 00 01 63   ...............c
+|   3200: 10 01 07 00 03 07 03 00 02 02 00 01 05 00 01 04   ................
+|   3216: 00 00 01 64 11 01 04 00 01 03 09 00 03 02 05 00   ...d............
+|   3232: 01 03 00 02 07 00 00 01 65 1b 01 09 00 01 04 07   ........e.......
+|   3248: 00 01 03 08 00 01 05 03 00 01 1c eb 01 04 00 01   ................
+|   3264: 0e 80 01 0b 00 00 01 66 03 06 05 00 00 01 69 0f   .......f......i.
+|   3280: 01 03 00 01 06 0b 23 04 04 04 00 03 03 09 00 00   ......#.........
+|   3296: 01 6c 0c 01 02 00 01 08 00 01 0b 00 05 0c 00 00   .l..............
+|   3312: 01 6d 09 02 0b 00 01 05 00 05 08 00 00 01 6e 0c   .m............n.
+|   3328: 03 08 00 01 02 00 02 06 00 01 06 00 00 01 6f 06   ..............o.
+|   3344: 07 04 00 01 06 00 00 01 70 06 06 07 00 01 07 00   ........p.......
+|   3360: 00 01 71 06 03 07 00 05 05 00 00 01 72 03 05 07   ..q.........r...
+|   3376: 00 00 02 73 0c 01 05 00 01 02 00 05 03 00 01 02   ...s............
+|   3392: 00 00 01 74 03 02 05 00 00 01 75 0a 02 07 00 01   ...t......u.....
+|   3408: 02 0a 00 01 03 00 00 01 76 07 03 06 00 02 09 03   ........v.......
+|   3424: 00 85 1c 01 08 08 08 08 08 17 8a 2a 30 20 36 35   ...........*0 65
+|   3440: 35 00 02 61 64 03 03 04 00 02 08 69 70 69 73 63   5..ad......ipisc
+|   3456: 69 6e 67 03 01 08 00 01 05 6c 69 71 75 61 03 02   ing......liqua..
+|   3472: 0c 00 05 02 69 70 03 04 04 00 01 03 6d 65 74 03   ....ip......met.
+|   3488: 01 06 00 01 03 6e 69 6d 03 08 09 00 01 03 75 74   .....nim......ut
+|   3504: 65 03 05 03 00 00 06 63 69 6c 6c 75 6d 03 06 02   e......cillum...
+|   3520: 00 01 06 6f 6d 6d 6f 64 6f 03 04 07 00 02 09 6e   ...ommodo......n
+|   3536: 73 65 63 74 65 74 75 72 03 01 07 00 05 04 71 75   sectetur......qu
+|   3552: 61 73 03 04 08 00 01 04 75 6c 70 61 03 08 04 00   as......ulpa....
+|   3568: 02 07 70 69 64 61 74 61 74 03 07 05 00 00 08 64   ..pidatat......d
+|   3584: 65 73 65 72 75 6e 74 03 08 07 00 01 01 6f 03 09   eserunt......o..
+|   3600: b3 00 02 03 6c 6f 72 06 01 04 00 04 05 00 05 01   ....lor.........
+|   3616: 65 06 02 0a 00 04 03 00 01 03 75 69 73 03 05 02   e.........uis...
+|   3632: 00 00 01 65 07 04 05 03 00 02 04 00 01 06 69 75   ...e..........iu
+|   3648: 73 6d 6f 64 03 02 04 00 01 03 6c 69 74 03 01 09   smod......lit...
+|   3664: 00 01 03 6e 69 6d 03 03 03 00 01 03 73 73 65 03   ...nim......sse.
+|   3680: 05 0b 00 02 01 74 03 08 0b 00 01 01 74 03 02 09   .....t......t...
+|   3696: 00 01 08 78 63 65 70 64 65 75 72 03 07 02 00 02   ...xcepdeur.....
+|   3712: 0a 65 72 63 69 74 61 74 69 6f 6e 03 03 09 00 00   .ercitation.....
+|   3728: 06 66 75 67 69 61 74 03 06 05 00 00 02 69 64 03   .fugiat......id.
+|   3744: 08 0a 00 01 01 6e 07 05 06 04 00 03 03 00 02 08   .....n..........
+|   3760: 63 69 64 69 64 75 6e 74 03 02 06 00 01 04 70 73   cididunt......ps
+|   3776: 75 6c f3 01 03 00 01 04 72 75 72 65 03 05 04 00   ul......rure....
+|   3792: 00 06 6c 61 62 6f 72 65 03 02 08 00 05 02 69 73   ..labore......is
+|   3808: 03 03 0b 00 05 02 75 6d 03 08 0c 00 01 04 6f 72   ......um......or
+|   3824: 65 6d 03 01 02 00 00 05 6d 61 67 6e 61 03 02 0b   em......magna...
+|   3840: 00 01 04 69 6e 69 6d 03 03 05 00 01 05 6f 6c 6c   ...inim......oll
+|   3856: 69 74 03 08 08 00 00 04 6e 69 73 69 03 04 02 00   it......nisi....
+|   3872: 01 02 6f 6e 03 07 06 00 02 05 73 74 72 75 64 03   ..on......strud.
+|   3888: 03 08 00 01 04 75 6c 6c 61 03 06 06 00 00 08 6f   .....ulla......o
+|   3904: 63 63 61 65 63 61 74 03 07 04 00 01 06 66 66 69   ccaecat......ffi
+|   3920: 63 69 61 03 08 06 00 00 08 70 61 72 69 61 74 75   cia......pariatu
+|   3936: 72 03 06 07 00 01 07 72 6f 69 64 65 6e 74 03 07   r......roident..
+|   3952: 07 00 00 03 71 75 69 03 08 15 00 03 01 73 03 03   ....qui......s..
+|   3968: 07 00 00 0d 72 65 70 72 65 68 65 6e 64 65 72 69   ....reprehenderi
+|   3984: 74 03 05 07 00 00 03 73 65 64 03 02 01 ff ff f0   t......sed......
+|   4000: b9 6e 74 03 07 03 00 02 01 74 03 01 05 00 01 03   .nt......t......
+|   4016: 75 6e 74 03 08 02 00 00 06 74 65 6d 70 6f 72 03   unt......tempor.
+|   4032: 02 05 00 00 07 75 6c 6c 61 6d 63 6f 03 03 0a 00   .....ullamco....
+|   4048: 01 01 74 09 02 07 00 01 02 00 01 03 00 00 05 76   ..t............v
+|   4064: 65 6c 69 74 03 05 0a 00 02 04 6e 69 61 6d 03 03   elit......niam..
+|   4080: 06 00 01 08 6f 6c 75 70 74 61 74 65 03 05 09 00   ....oluptate....
+| page 5 offset 16384
+|      0: 0a 00 00 00 03 0f eb 00 0f fb 0f f3 00 00 00 00   ................
+|   4064: 00 00 00 00 00 00 00 00 00 00 00 07 04 02 08 01   ................
+|   4080: 08 00 03 07 04 02 08 01 04 00 02 04 04 08 08 09   ................
+| page 6 offset 20480
+|      0: 0d 00 00 00 00 00 01 00 00 00 00 00 00 00 00 00   ................
+|   4048: 04 08 03 00 0e 0b 04 07 03 00 0e 06 04 06 03 00   ................
+|   4064: 0e 06 04 05 03 00 0e 0a 04 04 03 00 0e 07 04 03   ................
+|   4080: 03 00 0d fa 04 02 03 00 0e 0b 04 00 00 00 00 00   ................
+| page 7 offset 24576
+|   4080: 00 00 00 00 00 00 00 07 00 03 00 00 00 00 00 00   ................
+| end crash-fd33f4b1c8348b.db
+}]} {}
+
+do_catchsql_test 52.1 {
+  SELECT * FROM t1, t2;
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_test 53.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 8192 pagesize 1024 filename crash-7bc.txt.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 04 00 01 01 00 40 20 20 00 00 00 00 00 00 00 08   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 06 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 02 f3 00 07 01 51 00 03 c8 03 63   ..........Q....c
+|    112: 02 fb 02 0a 02 c0 01 a8 01 51 00 00 00 00 00 00   .........Q......
+|    336: 00 55 07 07 17 1b 1b 01 81 01 74 61 62 6c 65 74   .U........tablet
+|    352: 31 5f 73 74 61 74 74 31 5f 73 74 61 74 07 43 52   1_statt1_stat.CR
+|    368: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 73   EATE TABLE 't1_s
+|    384: 74 61 74 27 28 69 64 20 49 4e 54 45 47 45 52 20   tat'(id INTEGER 
+|    400: 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 61 6c   PRIMARY KEY, val
+|    416: 75 65 20 42 4c 4f 42 29 60 06 07 17 21 21 01 81   ue BLOB)`...!!..
+|    432: 0b 74 61 62 6c 65 74 31 5f 64 6f 63 73 69 7a 65   .tablet1_docsize
+|    448: 74 31 5f 64 6f 63 73 69 7a 65 06 43 52 45 41 54   t1_docsize.CREAT
+|    464: 45 20 54 41 42 4c 45 20 27 74 31 5f 64 6f 63 73   E TABLE 't1_docs
+|    480: 69 7a 65 27 28 64 6f 63 69 64 20 49 4e 54 45 47   ize'(docid INTEG
+|    496: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
+|    512: 73 69 7a 65 20 42 4c 4f 42 29 81 33 04 07 17 1f   size BLOB).3....
+|    528: 1f 01 82 35 74 61 62 6c 65 74 31 5f 73 65 67 64   ...5tablet1_segd
+|    544: 69 72 74 31 5f 73 65 67 64 69 72 04 43 52 45 41   irt1_segdir.CREA
+|    560: 54 45 20 54 41 42 4c 45 20 27 74 31 5f 73 65 67   TE TABLE 't1_seg
+|    576: 64 69 72 27 28 6c 65 76 65 6c 20 49 4e 54 45 47   dir'(level INTEG
+|    592: 45 52 2c 69 64 78 20 49 4e 54 45 47 45 52 2c 73   ER,idx INTEGER,s
+|    608: 74 61 72 74 5f 62 6c 6f 63 6b 20 49 4e 54 45 47   tart_block INTEG
+|    624: 45 52 2c 6c 65 61 76 65 73 5f 65 6e 64 5f 62 6c   ER,leaves_end_bl
+|    640: 6f 63 6b 20 49 4e 54 45 47 45 52 2c 65 6e 64 5f   ock INTEGER,end_
+|    656: 62 6c 6f 63 6b 20 49 4e 54 45 47 45 52 2c 72 6f   block INTEGER,ro
+|    672: 6f 74 20 42 4c 4f 42 2c 50 52 49 4d 41 52 59 20   ot BLOB,PRIMARY 
+|    688: 4b 45 59 28 6c 65 76 65 6c 2c 20 69 64 78 29 29   KEY(level, idx))
+|    704: 31 05 06 17 45 1f 01 00 69 6e 64 65 78 73 71 6c   1...E...indexsql
+|    720: 69 74 65 5f 61 75 74 6f 69 6e 64 65 78 5f 74 31   ite_autoindex_t1
+|    736: 5f 73 65 67 64 69 72 5f 31 74 31 5f 73 65 67 64   _segdir_1t1_segd
+|    752: 69 72 05 00 00 00 08 00 00 00 00 66 03 07 17 23   ir.........f...#
+|    768: 23 01 81 13 74 61 62 6c 65 74 31 5f 73 65 67 6d   #...tablet1_segm
+|    784: 65 6e 74 73 74 31 5f 73 65 67 6d 65 6e 74 73 03   entst1_segments.
+|    800: 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74 31   CREATE TABLE 't1
+|    816: 5f 73 65 67 6d 65 6e 74 73 27 28 62 6c 6f 63 6b   _segments'(block
+|    832: 69 64 20 49 4e 53 45 47 45 52 20 50 52 49 4d 41   id INSEGER PRIMA
+|    848: 52 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c   RY KEY, block BL
+|    864: 4f 42 29 63 02 07 17 21 21 01 81 11 74 61 62 6c   OB)c...!!...tabl
+|    880: 65 74 31 5f 63 6f 6e 74 65 6e 74 74 31 5f 63 6f   et1_contentt1_co
+|    896: 6e 74 65 6e 74 02 43 52 45 41 54 45 20 54 41 42   ntent.CREATE TAB
+|    912: 4c 45 20 27 74 31 5f 63 6f 6e 74 65 6e 74 27 28   LE 't1_content'(
+|    928: 64 6f 63 69 64 20 49 4e 54 45 47 45 52 20 50 52   docid INTEGER PR
+|    944: 49 4d 41 52 59 20 4b 45 59 2c 20 27 63 30 30 27   IMARY KEY, 'c00'
+|    960: 2c 20 27 63 31 62 27 29 36 01 06 17 11 11 08 5b   , 'c1b')6......[
+|    976: 74 61 62 6c 65 74 31 74 31 43 52 45 41 54 45 20   tablet1t1CREATE 
+|    992: 56 49 52 54 55 41 4c 20 54 41 42 4c 45 20 74 31   VIRTUAL TABLE t1
+|   1008: 20 55 53 49 4e 47 20 66 74 73 34 28 30 2c 62 29    USING fts4(0,b)
+| page 2 offset 1024
+|      0: 0d 00 00 00 03 00 0f 00 00 23 00 16 00 0f 00 05   .........#......
+|     16: 03 04 00 08 0f 61 0b 02 04 00 08 1b 41 54 45 20   .....a......ATE 
+|     32: 32 3a 50 87 5a 01 05 00 08 8f 37 66 30 30 30 30   2:P.Z.....7f0000
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+| page 3 offset 2048
+|      0: 0d 00 00 00 02 03 86 00 03 f4 03 86 00 00 00 00   ................
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+| page 4 offset 3072
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+|    992: 01 01 02 00 00 01 70 05 02 01 01 04 00 11 01 07   ......p.........
+|   1008: 08 08 09 01 17 14 02 32 20 39 39 37 01 01 01 66   .......2 997...f
+| page 5 offset 4096
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+| page 6 offset 5120
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+| page 7 offset 6144
+|      0: 0d 00 00 00 01 03 f6 00 03 f6 00 00 00 00 00 00   ................
+|   1008: 00 00 00 00 00 00 08 00 03 00 16 03 08 c5 e0 07   ................
+| page 8 offset 7168
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+|    688: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
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+|    768: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
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+|    864: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    880: 30 30 30 30 30 30 30 30 30 05 01 00 00 00 00 00   000000000.......
+| end crash-7bc.txt.db
+}]} {}
+
+do_execsql_test 53.1 {
+  SELECT*FROM t1 WHERE t1 MATCH'ATE"0"OR"2D:P"""ATE"0"OR"2:P"""';
+} {0 {ATE 2:P}}
+set sqlite_fts3_enable_parentheses $saved
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_test 54.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+.open --hexdb
+| size 8192 pagesize 1024 filename crash-365.txt.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 04 00 01 01 00 40 20 20 00 00 00 00 00 00 00 08   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 06 00 00 00 04   ................
+|     96: 00 00 00 00 0d 02 f3 00 07 01 51 00 03 c8 03 63   ..........Q....c
+|    112: 02 fb 02 0a 02 c0 01 a8 01 51 00 00 00 00 00 00   .........Q......
+|    336: 00 55 07 07 17 1b 1b 01 81 01 74 61 62 6c 65 74   .U........tablet
+|    352: 31 5f 73 74 61 74 74 31 5f 73 74 61 74 07 43 52   1_statt1_stat.CR
+|    368: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 73   EATE TABLE 't1_s
+|    384: 74 61 74 27 28 69 64 20 49 4e 54 45 47 45 52 20   tat'(id INTEGER 
+|    400: 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 61 6c   PRIMARY KEY, val
+|    416: 75 65 20 42 4c 4f 42 29 60 06 07 17 21 21 01 81   ue BLOB)`...!!..
+|    432: 0b 74 61 62 6c 65 74 31 5f 64 6f 63 73 69 7a 65   .tablet1_docsize
+|    448: 74 31 5f 64 6f 63 73 69 7a 65 06 43 52 45 41 54   t1_docsize.CREAT
+|    464: 45 20 54 41 42 4c 45 20 27 74 31 5f 64 6f 63 73   E TABLE 't1_docs
+|    480: 69 7a 65 27 28 64 6f 63 69 64 20 49 4e 54 45 47   ize'(docid INTEG
+|    496: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20   ER PRIMARY KEY, 
+|    512: 73 69 7a 65 20 42 4c 4f 42 29 81 33 04 07 17 1f   size BLOB).3....
+|    528: 1f 01 82 35 74 61 62 6c 65 74 31 5f 73 65 67 64   ...5tablet1_segd
+|    544: 69 72 74 31 5f 73 65 67 64 69 72 04 43 52 45 41   irt1_segdir.CREA
+|    560: 54 45 20 54 41 42 4c 45 20 27 74 31 5f 73 65 67   TE TABLE 't1_seg
+|    576: 64 69 72 27 28 6c 65 76 65 6c 20 49 4e 54 45 47   dir'(level INTEG
+|    592: 45 52 2c 69 64 78 20 49 4e 54 45 47 45 52 2c 73   ER,idx INTEGER,s
+|    608: 74 61 72 74 5f 62 6c 6f 63 6b 20 49 4e 54 45 47   tart_block INTEG
+|    624: 45 52 2c 6c 65 61 76 65 73 5f 65 6e 64 5f 62 6c   ER,leaves_end_bl
+|    640: 6f 63 6b 20 49 4e 54 45 47 45 52 2c 65 6e 64 5f   ock INTEGER,end_
+|    656: 62 6c 6f 63 6b 20 49 4e 54 45 47 45 52 2c 72 6f   block INTEGER,ro
+|    672: 6f 74 20 42 4c 4f 42 2c 50 52 49 4d 41 52 59 20   ot BLOB,PRIMARY 
+|    688: 4b 45 59 28 6c 65 76 65 6c 2c 20 69 64 78 29 29   KEY(level, idx))
+|    704: 31 05 06 17 45 1f 01 00 69 6e 64 65 78 73 71 6c   1...E...indexsql
+|    720: 69 74 65 5f 61 75 74 6f 69 6e 64 65 78 5f 74 31   ite_autoindex_t1
+|    736: 5f 73 65 67 64 69 72 5f 31 74 31 5f 73 65 67 64   _segdir_1t1_segd
+|    752: 69 72 05 00 00 00 08 00 00 00 00 66 03 07 17 23   ir.........f...#
+|    768: 23 01 81 13 74 61 62 6c 65 74 31 5f 73 65 67 6d   #...tablet1_segm
+|    784: 65 6e 74 73 74 31 5f 73 65 67 6d 65 6e 74 73 03   entst1_segments.
+|    800: 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 74 31   CREATE TABLE 't1
+|    816: 5f 73 65 67 6d 65 6e 74 73 27 28 62 6c 6f 63 6b   _segments'(block
+|    832: 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41   id INTEGER PRIMA
+|    848: 52 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c   RY KEY, block BL
+|    864: 4f 42 29 63 02 07 17 21 21 01 81 11 74 61 62 6c   OB)c...!!...tabl
+|    880: 65 74 31 5f 63 6f 6e 74 65 6e 74 74 31 5f 63 6f   et1_contentt1_co
+|    896: 6e 74 65 6e 74 02 43 52 45 41 54 45 20 54 41 42   ntent.CREATE TAB
+|    912: 4c 45 20 27 74 31 5f 63 6f 6e 74 65 6e 74 27 28   LE 't1_content'(
+|    928: 64 6f 63 69 64 20 49 4e 54 45 47 45 52 20 50 52   docid INTEGER PR
+|    944: 49 4d 41 52 59 20 4b 45 59 2c 20 27 63 30 30 27   IMARY KEY, 'c00'
+|    960: 2c 20 27 63 31 62 27 29 36 01 06 17 11 11 08 5b   , 'c1b')6......[
+|    976: 74 61 62 6c 65 74 31 74 31 43 52 45 41 54 45 20   tablet1t1CREATE 
+|    992: 56 49 52 54 55 41 4c 20 54 41 42 4c 45 20 74 31   VIRTUAL TABLE t1
+|   1008: 20 55 53 49 4e 47 20 66 74 73 34 28 30 2c 62 29    USING fts4(0,b)
+| page 2 offset 1024
+|      0: 0d 00 00 00 03 00 0f 00 00 23 00 16 00 0f 00 05   .........#......
+|     16: 03 04 00 08 0f 61 0b 02 04 00 08 1b 41 54 45 20   .....a......ATE 
+|     32: 32 3a 50 87 5a 01 05 00 08 8f 37 66 30 30 30 30   2:P.Z.....7f0000
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+| page 3 offset 2048
+|      0: 0d 00 00 00 02 03 86 00 03 f4 03 86 00 00 00 00   ................
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+|   1008: 00 00 00 08 0a 01 03 00 1a 00 01 30 03 01 02 00   ...........0....
+| page 4 offset 3072
+|      0: 0d 00 00 00 03 03 9e 00 03 ed 03 bc 03 9e 00 01   ................
+|    912: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 1c 03   ................
+|    928: 07 08 01 08 08 15 2c 02 30 20 31 36 00 01 30 03   ......,.0 16..0.
+|    944: 03 02 00 00 01 61 05 03 01 01 02 00 2f 02 07 08   .....a....../...
+|    960: 09 08 08 15 54 30 20 33 36 00 01 30 03 02 02 00   ....T0 36..0....
+|    976: 00 01 32 05 02 01 01 03 00 00 03 61 74 65 05 02   ..2........ate..
+|    992: 01 01 02 00 00 01 70 05 02 01 01 04 00 11 01 07   ......p.........
+|   1008: 08 08 09 01 17 14 02 32 20 39 39 37 01 01 01 66   .......2 997...f
+| page 5 offset 4096
+|      0: 0a 00 00 00 03 03 ee 00 03 fb 03 f5 03 ee 00 00   ................
+|    992: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 06 04   ................
+|   1008: 08 01 01 02 03 05 04 08 09 01 02 04 04 08 08 09   ................
+| page 6 offset 5120
+|      0: 0d 00 00 00 03 03 eb 00 03 f9 03 f2 00 00 00 00   ................
+|    992: 00 00 00 00 00 00 00 00 00 00 00 05 03 03 00 10   ................
+|   1008: 01 01 05 02 03 00 10 01 03 05 01 03 00 10 01 01   ................
+| page 7 offset 6144
+|      0: 0d 00 00 00 01 03 f6 00 03 f6 00 00 00 00 00 00   ................
+|   1008: 00 00 00 00 00 00 08 00 03 00 16 03 03 05 e0 07   ................
+| page 8 offset 7168
+|      0: 00 00 00 00 30 30 30 30 30 30 30 30 30 30 30 30   ....000000000000
+|     16: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|     32: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|     48: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|     64: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|     80: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|     96: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    112: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    128: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    144: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    160: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    176: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    192: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    208: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    224: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    240: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    256: 30 30 30 30 30 2f 30 30 30 30 30 30 30 30 30 30   00000/0000000000
+|    272: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    288: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    304: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    320: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    336: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    352: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    368: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    384: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    400: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    416: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    432: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    448: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    464: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    480: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    496: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    512: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    528: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    544: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    560: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    576: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    592: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    608: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    624: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    640: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    656: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    672: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    688: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    704: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    720: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    736: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    752: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    768: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    784: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    800: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    816: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    832: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    848: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    864: 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30   0000000000000000
+|    880: 30 30 30 30 30 30 30 30 30 05 01 01 01 02 00 00   000000000.......
+| end crash-365.txt.db
+}]} {}
+
+do_execsql_test 54.1 {
+  SELECT rowid, quote(matchinfo(t1,'pcxybspcxybs')) FROM t1 WHERE t1 MATCH'ATE"0"OR"2:P"""';
+}
+
+finish_test
diff --git a/test/fts3corrupt5.test b/test/fts3corrupt5.test
new file mode 100644
index 0000000000000000000000000000000000000000..a8a3b0168e616ad68bf055813151fb6aa63235cc
--- /dev/null
+++ b/test/fts3corrupt5.test
@@ -0,0 +1,59 @@
+# 2019 May 22
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/fts3_common.tcl
+set testprefix fts3corrupt5
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+sqlite3_fts3_may_be_corrupt 1
+
+do_execsql_test 1.0 {
+  BEGIN;
+    CREATE VIRTUAL TABLE ft USING fts3(a, b, c);
+    INSERT INTO ft VALUES('one', 'one', 'one');
+  COMMIT;
+}
+
+do_execsql_test 1.1 {
+  SELECT * FROM ft WHERE ft MATCH 'b:one'
+} {one one one}
+
+do_execsql_test 1.2 {
+  SELECT quote(root) FROM ft_segdir;
+} {X'00036F6E6509010201010201020200'}
+
+breakpoint
+foreach {tn val q bCorrupt} {
+  1 X'00036F6E650901'                   'b:one'  1
+  2 X'00036F6E6509010201010201FFFFFF'   'c:one'  1
+  3 X'00036F6E6501'                     'b:one'  1
+  4 X'00036F6E650101'                   'b:one'  1
+  5 X'00036F6E650100'                   'b:one'  0
+} {
+  do_execsql_test 1.3.$tn.1 "UPDATE ft_segdir SET root = $val"
+
+  set res {0 {}}
+  if {$bCorrupt} { set res {1 {database disk image is malformed}}}
+  do_catchsql_test 1.3.$tn.2 {
+    SELECT * FROM ft WHERE ft MATCH $q
+  } $res
+}
+
+finish_test
diff --git a/test/fts3corrupt6.test b/test/fts3corrupt6.test
new file mode 100644
index 0000000000000000000000000000000000000000..a3c5fd8da6936d35004dac43acab7e97ce7740a0
--- /dev/null
+++ b/test/fts3corrupt6.test
@@ -0,0 +1,79 @@
+# 2020 June 8
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS3 module.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/fts3_common.tcl
+set testprefix fts3corrupt6
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+set ::saved_sqlite_fts3_enable_parentheses $::sqlite_fts3_enable_parentheses
+set sqlite_fts3_enable_parentheses 1
+sqlite3_fts3_may_be_corrupt 1
+database_may_be_corrupt
+
+do_execsql_test 1.0 {
+  BEGIN TRANSACTION;
+  CREATE TABLE t_content(col0 INTEGER);
+  PRAGMA writable_schema=ON;
+  CREATE VIRTUAL TABLE t0 USING fts3(col0 INTEGER PRIMARY KEY,col1 VARCHAR(8),col2 BINARY,col3 BINARY);
+  INSERT INTO t0_content VALUES(0,NULL,NULL,NULL,NULL);
+  INSERT INTO t0_segdir VALUES(0,0,0,0,'0 42',X'000131030102000103323334050101010200000461616161050101020200000462626262050101030200');
+  COMMIT;
+}
+
+do_execsql_test 1.1 {
+  SELECT 0+matchinfo(t0,'yxyyxy') FROM t0 WHERE t0 MATCH CAST( x'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' AS TEXT);
+} {0}
+
+do_execsql_test 1.2 {
+  CREATE VIRTUAL TABLE t1 USING fts3(col0 INTEGER PRIMARY KEY,col1 VARCHAR(8),col2 BINARY,col3 BINARY);
+  INSERT INTO t1_content VALUES(0,NULL,NULL,NULL,NULL);
+  INSERT INTO t1_segdir VALUES(0,0,0,0,'0 42',X'000131030102000103323334050101010200000461616161050101020200000462626262050101030200');
+}
+
+do_execsql_test 1.3 {
+  SELECT 42+matchinfo(t1,'yxyyxy')  FROM t1 WHERE t1 MATCH  x'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';
+} {42}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE t0 USING fts3(a);
+  INSERT INTO t0_segdir VALUES(0,0,0,0,'0 42',X'000131030782000103323334050100fff200010461616161050101020200000462626262050101030200');
+}
+do_execsql_test 2.1 {
+  SELECT count(*) FROM t0 WHERE t0 MATCH '(1 NEAR 1) AND (aaaa OR 1)';
+} 1
+
+#-------------------------------------------------------------------------
+reset_db
+breakpoint
+do_catchsql_test 3.0 {
+  CREATE VIRTUAL TABLE main.Table0 USING fts3();
+  INSERT INTO Table0 VALUES (1), (printf('%8.1280000X') ), (1), (printf('%8.1280000X') ), (1)  ;
+  INSERT INTO Table0 VALUES (0), (printf('%8.1280000X%8.1280000X') ), (1), (printf('%1280000.1280000X%#1280000.1280000E%8.1280000X') ), (1)  ;
+  INSERT INTO Table0 VALUES (1)  ;
+  UPDATE Table0_segdir SET start_block = 1;
+  INSERT INTO Table0 VALUES (1)  ;
+  INSERT INTO Table0(Table0) VALUES('merge=6,8');
+} {1 {database disk image is malformed}}
+
+set sqlite_fts3_enable_parentheses $saved_sqlite_fts3_enable_parentheses
+finish_test
diff --git a/test/fts3corrupt7.test b/test/fts3corrupt7.test
new file mode 100644
index 0000000000000000000000000000000000000000..6cf9c9a9dce7873b83140b8a9d6fe64bae5ed675
--- /dev/null
+++ b/test/fts3corrupt7.test
@@ -0,0 +1,280 @@
+# 2024 November 7
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS3 module.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/fts3_common.tcl
+set testprefix fts3corrupt7
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+sqlite3_fts3_may_be_corrupt 1
+database_may_be_corrupt
+extra_schema_checks 0
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 1.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 28672 pagesize 4096 filename x.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 04 00 00 00 07   .....@  ........
+|     32: 00 00 00 02 00 00 00 01 00 00 00 04 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 04   ................
+|     96: 00 2e 82 40 0d 0e b1 00 06 0d a4 00 0f 8d 0f 21   ...@...........!
+|    112: 0e b9 0d c8 0e 7e 0d a4 7d a4 00 00 00 00 00 00   .....~..........
+|   2512: 00 00 00 00 00 00 00 00 96 00 00 00 00 00 00 00   ................
+|   3488: 00 00 00 00 22 07 06 17 11 11 01 31 74 61 62 6c   ...........1tabl
+|   3504: 65 74 32 74 32 07 43 52 45 41 54 45 20 54 41 42   et2t2.CREATE TAB
+|   3520: 4c 45 20 74 32 28 78 29 81 33 05 07 17 1f 1f 01   LE t2(x).3......
+|   3536: 82 35 74 61 62 6c 65 74 31 5f 73 65 67 64 69 72   .5tablet1_segdir
+|   3552: 74 31 5f 73 65 67 64 69 72 05 43 52 45 41 54 45   t1_segdir.CREATE
+|   3568: 20 54 41 42 4c 45 20 27 74 31 5f 73 65 67 64 69    TABLE 't1_segdi
+|   3584: 72 27 28 6c 65 76 65 6c 20 49 4e 54 45 47 45 52   r'(level INTEGER
+|   3600: 2c 69 64 78 20 49 4e 54 45 47 45 52 2c 73 74 61   ,idx INTEGER,sta
+|   3616: 72 74 5f 62 6c 6f 63 6b 20 49 4e 54 45 47 45 52   rt_block INTEGER
+|   3632: 2c 6c 65 61 76 65 73 5f 65 6e 64 5f 62 6c 6f 63   ,leaves_end_bloc
+|   3648: 6b 20 49 4e 54 45 47 45 52 2c 65 6e 64 5f 62 6c   k INTEGER,end_bl
+|   3664: 6f 63 6b 20 49 4e 54 45 47 45 52 2c 72 6f 6f 74   ock INTEGER,root
+|   3680: 20 42 4c 4f 42 2c 50 52 49 4d 41 52 59 20 4b 45    BLOB,PRIMARY KE
+|   3696: 59 28 6c 65 76 65 6c 2c 20 69 64 78 29 29 31 06   Y(level, idx))1.
+|   3712: 06 17 45 1f 01 00 69 6e 64 65 78 73 71 6c 69 74   ..E...indexsqlit
+|   3728: 65 5f 61 75 74 6f 69 6e 64 65 78 5f 74 31 5f 73   e_autoindex_t1_s
+|   3744: 65 67 64 69 72 5f 31 74 31 5f 73 65 67 64 69 72   egdir_1t1_segdir
+|   3760: 06 0f c7 00 08 00 00 00 00 66 04 07 17 23 23 01   .........f...##.
+|   3776: 81 13 74 61 62 6c 65 74 31 5f 73 65 67 6d 65 6e   ..tablet1_segmen
+|   3792: 74 73 74 31 5f 73 65 67 6d 65 6e 74 73 04 43 52   tst1_segments.CR
+|   3808: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 73   EATE TABLE 't1_s
+|   3824: 65 67 6d 65 6e 74 73 27 28 62 6c 6f 63 6b 69 64   egments'(blockid
+|   3840: 20 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59    INTEGER PRIMARY
+|   3856: 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 4c 4f 42    KEY, block BLOB
+|   3872: 29 6a 03 07 17 21 21 01 81 1f 74 61 62 6c 65 74   )j...!!...tablet
+|   3888: 31 5f 63 6f 6e 74 65 6e 74 74 31 5f 63 6f 6e 74   1_contentt1_cont
+|   3904: 65 6e 74 03 43 52 45 41 54 45 20 54 41 42 4c 45   ent.CREATE TABLE
+|   3920: 20 27 74 31 5f 63 6f 6e 74 65 6e 74 27 28 64 6f    't1_content'(do
+|   3936: 63 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d   cid INTEGER PRIM
+|   3952: 41 52 59 20 4b 45 59 2c 20 27 63 30 61 27 2c 20   ARY KEY, 'c0a', 
+|   3968: 27 63 31 62 27 2c 20 27 63 32 63 27 29 38 02 06   'c1b', 'c2c')8..
+|   3984: 17 11 11 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 33   LE t1 USING fts3
+|   4032: 28 61 2c 62 2c 63 29 00 00 00 39 00 00 00 00 00   (a,b,c)...9.....
+| page 2 offset 4096
+|      0: 01 00 00 00 00 01 00 00 00 00 01 00 00 00 00 01   ................
+|     16: 00 00 00 00 02 00 00 00 00 05 00 00 00 03 02 00   ................
+|     32: 00 00 00 05 00 00 00 03 02 00 00 00 00 05 00 00   ................
+|     48: 00 03 02 00 00 00 00 05 00 00 00 03 02 00 00 00   ................
+|     64: 00 05 00 00 00 03 02 00 00 00 00 05 00 00 00 03   ................
+|     80: 02 00 00 00 00 05 00 00 00 03 02 00 00 00 00 05   ................
+|     96: 00 00 00 03 02 00 00 00 00 05 00 00 00 03 05 00   ................
+|    112: 00 00 03 03 00 00 00 23 02 00 00 00 00 03 00 00   .......#........
+|    128: 00 23 02 00 00 00 00 03 00 00 4d 5a 14 00 ae 7c   .#........MZ...|
+|   1088: 00 00 00 00 00 00 01 00 00 00 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 09   ................
+| page 3 offset 8192
+|      0: 0d 00 00 00 25 0b 48 00 0f d8 0f af 0f 86 0f 74   ....%.H........t
+|     16: 0f 61 0f 4e 0f 2f 0f 0f 0e ef 0e d7 0e be 0e a5   .a.N./..........
+|     32: 0e 8d 0e 74 0e 5b 0e 40 0e 24 0e 08 0d ef 0d d5   ...t.[.@.$......
+|     48: 0d bb 0d a0 0d 84 0d 68 0d 4f 0d 35 0d 1b 0c fb   .......h.O.5....
+|     64: 0c da 0c b9 0c 99 0c 78 0c 57 0c 3e 0c 24 0c 0a   .......x.W.>.$..
+|     80: 0b 48 00 00 00 00 00 00 00 00 00 00 00 00 00 00   .H..............
+|   2880: 00 00 00 00 00 00 00 00 81 3f 25 06 00 82 7f 00   .........?%.....
+|   2896: 00 43 4f 4d 50 49 4c 45 52 3d 67 63 63 2d 35 2e   .COMPILER=gcc-5.
+|   2912: 34 2e 30 20 32 30 31 36 30 36 30 39 20 44 45 42   4.0 20160609 DEB
+|   2928: 55 47 20 45 4e 41 42 4c 45 20 44 42 53 54 41 54   UG ENABLE DBSTAT
+|   2944: 20 56 54 41 42 20 45 4e 41 42 4c 45 20 46 54 53    VTAB ENABLE FTS
+|   2960: 34 20 45 4e 41 42 4c 45 20 46 54 53 35 20 45 4e   4 ENABLE FTS5 EN
+|   2976: 41 42 4c 45 20 47 45 4f 50 4f 4c 59 20 45 4e 41   ABLE GEOPOLY ENA
+|   2992: 42 4c 45 20 4a 53 4f 4e 31 20 45 4e 41 42 4c 45   BLE JSON1 ENABLE
+|   3008: 20 4d 45 4d 53 59 53 35 20 45 4e 41 42 4c 45 20    MEMSYS5 ENABLE 
+|   3024: 52 54 52 45 45 20 4d 41 58 20 4d 45 4d 4f 52 59   RTREE MAX MEMORY
+|   3040: 3d 35 30 30 30 30 30 30 30 20 4f 4d 49 54 20 4c   =50000000 OMIT L
+|   3056: 4f 41 44 20 45 58 54 45 4e 53 49 4f 4e 20 54 48   OAD EXTENSION TH
+|   3072: 52 45 41 44 53 41 46 45 3d 30 18 24 05 00 25 0f   READSAFE=0.$..%.
+|   3088: 19 54 48 52 45 41 44 53 41 46 45 3d 30 58 42 49   .THREADSAFE=0XBI
+|   3104: 4e 41 52 59 18 23 05 00 25 0f 19 54 48 52 45 41   NARY.#..%..THREA
+|   3120: 44 53 41 46 45 3d 30 58 4e 4f 43 41 53 45 17 22   DSAFE=0XNOCASE..
+|   3136: 05 00 25 0f 17 54 48 52 45 41 44 53 41 46 45 3d   ..%..THREADSAFE=
+|   3152: 30 58 52 54 52 49 4d 1f 21 05 00 33 0f 19 4f 4d   0XRTRIM.!..3..OM
+|   3168: 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49 4f   IT LOAD EXTENSIO
+|   3184: 4e 58 42 49 4e 41 52 59 1f 20 05 00 33 0f 19 4f   NXBINARY. ..3..O
+|   3200: 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53 49   MIT LOAD EXTENSI
+|   3216: 4f 4e 58 4e 4f 43 41 53 45 1e 1f 05 00 33 0f 17   ONXNOCASE....3..
+|   3232: 4f 4d 49 54 20 4c 4f 41 44 20 45 58 54 45 4e 53   OMIT LOAD EXTENS
+|   3248: 49 4f 4e 58 52 54 52 49 4d 1f 1e 05 00 33 00 00   IONXRTRIM....3..
+|   4016: 54 41 42 4c 45 20 74 31 28 61 20 49 4e 54 45 47   TABLE t1(a INTEG
+|   4032: 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 20 41   ER PRIMARY KEY A
+|   4048: 55 54 4f 49 4e 43 52 45 4d 45 4e 54 2c 0a 62 2c   UTOINCREMENT,.b,
+|   4064: 63 2c 64 2c 65 2c 66 2c 67 2c 68 2c 6a 2c 6b 2c   c,d,e,f,g,h,j,k,
+|   4080: 6c 2c 6d 2c 6e 2c 6f 2c 70 2c 71 2c 72 2c 73 29   l,m,n,o,p,q,r,s)
+| page 5 offset 16384
+|      0: 0d 00 00 00 02 0b a0 00 0c ad 0b a0 00 00 00 00   ................
+|   2976: 82 0a 02 08 08 09 08 08 17 84 06 30 20 32 35 33   ...........0 253
+|   2992: 00 01 30 04 25 06 1b 00 00 08 32 30 31 36 30 36   ..0.%.....201606
+|   3008: 30 39 03 25 07 00 00 01 34 03 25 05 00 00 01 35   09.%....4.%....5
+|   3024: 03 25 04 00 01 07 30 30 30 30 30 30 30 03 25 1a   .%....0000000.%.
+|   3040: 00 00 08 63 6f 6d 70 69 6c 65 72 03 25 02 00 00   ...compiler.%...
+|   3056: 06 64 62 73 74 61 74 03 25 0a 00 01 04 65 62 75   .dbstat.%....ebu
+|   3072: 67 03 25 08 00 00 06 65 6e 61 62 6c 65 09 25 09   g.%....enable.%.
+|   3088: 05 04 04 04 04 04 00 01 08 78 74 65 6e 73 69 6f   .........xtensio
+|   3104: 6e 03 25 1d 00 00 04 66 74 73 34 03 25 0d 00 03   n.%....fts4.%...
+|   3120: 01 35 03 25 0f 00 00 03 67 63 63 03 25 03 00 01   .5.%....gcc.%...
+|   3136: 06 65 6f 70 6f 6c 79 03 25 11 00 00 05 6a 73 6f   .eopoly.%....jso
+|   3152: 6e 31 03 25 13 00 00 04 6c 6f 61 64 03 25 1c 00   n1.%....load.%..
+|   3168: 00 03 6d 61 78 03 25 18 00 01 05 65 6d 6f 72 79   ..max.%....emory
+|   3184: 03 25 19 00 03 04 73 79 73 35 03 25 15 00 00 04   .%....sys5.%....
+|   3200: 6f 6d 69 74 03 25 1b 00 00 05 72 74 72 65 65 03   omit.%....rtree.
+|   3216: 25 01 00 d0 0a 07 68 72 65 61 64 73 61 66 65 03   %.....hreadsafe.
+|   3232: 25 1e 00 00 04 76 74 61 62 03 25 0b 00 86 50 01   %....vtab.%...P.
+|   3248: 08 08 08 08 08 17 8d 12 30 20 38 33 35 00 01 30   ........0 835..0
+|   3264: 12 01 06 00 01 06 00 01 06 00 1f 03 00 01 03 00   ................
+|   3280: 01 03 00 00 08 32 30 31 36 30 36 30 39 09 01 07   .....20160609...
+|   3296: 00 01 07 00 01 07 00 00 01 34 09 01 05 00 01 05   .........4......
+|   3312: 00 01 05 00 00 01 35 09 01 04 00 01 04 00 01 04   ......5.........
+|   3328: 00 01 07 30 30 30 30 30 30 30 09 1c 04 00 01 04   ...0000000......
+|   3344: 00 01 04 00 00 06 62 69 6e 61 72 79 3c 03 01 02   ......binary<...
+|   3360: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3376: 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00   ................
+|   3392: 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03   ................
+|   3408: 01 02 02 00 03 01 02 02 00 00 08 63 6f 6d 70 69   ...........compi
+|   3424: 6c 65 72 09 01 02 00 01 02 00 01 02 00 00 06 64   ler............d
+|   3440: 62 73 74 61 74 09 07 03 00 01 03 00 01 03 00 01   bstat...........
+|   3456: 04 65 62 75 67 09 04 02 00 01 02 00 01 02 00 00   .ebug...........
+|   3472: 06 65 6e 61 62 6c 65 3f 07 02 00 01 02 00 01 02   .enable?........
+|   3488: 00 01 02 00 01 02 00 01 02 00 01 02 00 01 02 00   ................
+|   3504: 01 02 00 01 02 00 01 02 00 01 02 00 01 02 00 01   ................
+|   3520: 02 00 01 02 00 01 02 00 01 02 00 01 02 00 01 02   ................
+|   3536: 00 01 02 00 01 02 00 01 08 78 74 65 6e 73 69 6f   .........xtensio
+|   3552: 6e 09 1f 04 00 01 04 00 01 04 00 00 04 66 74 73   n............fts
+|   3568: 34 09 0a 03 00 01 03 00 01 03 00 03 01 35 09 0d   4............5..
+|   3584: 03 00 01 03 00 01 03 00 00 03 67 63 63 09 01 03   ..........gcc...
+|   3600: 00 01 03 00 01 03 00 01 06 65 6f 70 6f 6c 79 09   .........eopoly.
+|   3616: 10 03 00 01 03 00 01 03 00 00 05 6a 73 6f 6e 31   ...........json1
+|   3632: 09 13 03 00 01 03 01 01 03 00 00 04 6c 6f 61 64   ............load
+|   3648: 09 1f 03 00 01 03 00 01 03 00 00 03 6d 61 78 09   ............max.
+|   3664: 1c 02 00 01 02 00 01 02 00 01 05 65 6d 6f 72 79   ...........emory
+|   3680: 09 1c 03 00 01 03 00 01 03 00 03 04 73 79 73 35   ............sys5
+|   3696: 09 16 03 00 01 03 00 01 03 00 00 06 6e 6f 63 61   ............noca
+|   3712: 73 65 3c 02 01 02 02 00 03 01 02 02 00 03 01 02   se<.............
+|   3744: 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00   ................
+|   3760: 03 01 02 02 00 03 01 02 02 00 03 01 02 02 00 00   ................
+|   3776: 04 6f 6d 69 74 09 1f 02 00 01 02 00 01 02 00 00   .omit...........
+|   3792: 05 72 74 72 65 65 09 19 03 00 01 03 00 01 03 00   .rtree..........
+|   3808: 03 02 69 6d 3c 01 01 02 02 00 03 01 02 02 00 03   ..im<...........
+|   3824: 01 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01   ................
+|   3840: 02 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02   ................
+|   3856: 02 00 03 01 02 02 00 03 01 02 02 00 03 01 02 02   ................
+|   3872: 00 00 0a 74 68 72 65 61 64 73 61 66 65 09 22 02   ...threadsafe...
+|   3888: 00 01 02 00 01 02 00 00 04 76 74 61 62 09 07 04   .........vtab...
+|   3952: 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01   ................
+|   3968: 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01   ................
+|   3984: 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02   ................
+|   4000: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+|   4032: 01 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01   ................
+|   4048: 01 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01   ................
+|   4064: 02 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02   ................
+|   4080: 00 01 01 01 02 00 01 01 01 02 00 01 01 01 02 00   ................
+| page 6 offset 20480
+|      0: 0a 00 00 00 02 0f f5 00 0f fb 0f f5 00 00 00 00   ................
+|   4080: 00 00 00 00 00 05 04 08 09 01 02 04 04 08 08 09   ................
+| end x.db
+}]} {}
+
+do_catchsql_test 1.1 {
+  SELECT offsets(t1) FROM t1 WHERE t1 MATCH 'rtree NEAR rtree NEAR "json1 enable"';
+} {0 {}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 1.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 24576 pagesize 4096 filename crash-10b0f1037e9c85.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 00 00 00 40 20 20 00 00 00 01 00 00 00 07   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01   ................
+|     96: 00 2e 82 40 0d 00 00 00 06 00 00 00 0f 8d 0f 21   ...@...........!
+|    112: 0e b9 0d c8 0e 7e 0d a4 00 00 00 00 00 00 00 00   .....~..........
+|   3488: 00 00 00 00 21 ff 06 17 10 10 01 30 74 61 62 6c   ....!......0tabl
+|   3504: 65 74 32 74 32 00 43 52 45 41 54 45 20 54 41 42   et2t2.CREATE TAB
+|   3520: 4c 45 20 74 32 28 70 29 81 33 00 07 17 1f 1f 01   LE t2(p).3......
+|   3536: 82 35 74 61 62 6c 65 74 31 5f 73 65 67 64 69 72   .5tablet1_segdir
+|   3552: 74 31 5f 73 65 67 64 69 72 05 43 52 45 41 54 45   t1_segdir.CREATE
+|   3568: 20 54 41 42 4c 45 20 27 74 31 5f 73 65 67 64 69    TABLE 't1_segdi
+|   3584: 72 27 28 6c 65 76 65 6c 20 09 4e 50 45 47 45 50   r'(level .NPEGEP
+|   3600: 2c 69 64 78 20 09 4e 50 45 47 45 50 2c 73 74 61   ,idx .NPEGEP,sta
+|   3616: 72 74 5f 62 6c 6f 63 6b 20 09 4e 50 45 47 45 50   rt_block .NPEGEP
+|   3632: 2c 6c 65 61 76 65 73 5f 65 6e 64 5f 62 6c 6f 63   ,leaves_end_bloc
+|   3648: 6b 20 09 4e 50 45 47 45 50 2c 65 6e 64 5f 62 6c   k .NPEGEP,end_bl
+|   3664: 6f 63 6b 20 09 4e 50 45 47 45 50 2c 72 6f 6f 74   ock .NPEGEP,root
+|   3680: 20 42 0c 4f 42 2c 50 52 49 4d 41 52 59 20 4b 45    B.OB,PRIMARY KE
+|   3696: 59 28 6c 65 76 65 6c 2c 20 69 64 78 29 29 31 00   Y(level, idx))1.
+|   3712: 06 17 45 1f 01 00 00 00 00 00 00 73 71 6c 69 74   ..E........sqlit
+|   3728: 65 5f 61 75 74 6f 69 6e 64 65 78 5f 74 31 5f 73   e_autoindex_t1_s
+|   3744: 65 67 64 69 72 5f 31 00 00 00 00 00 00 00 00 00   egdir_1.........
+|   3760: 06 00 00 00 00 00 00 00 00 66 00 07 17 23 23 01   .........f...##.
+|   3776: 81 13 74 61 62 6c 65 74 31 5f 73 65 67 6d 65 6e   ..tablet1_segmen
+|   3792: 74 73 74 31 5f 73 65 67 6d 65 6e 74 73 00 43 52   tst1_segments.CR
+|   3808: 45 41 54 45 20 54 41 42 4c 45 20 27 74 31 5f 73   EATE TABLE 't1_s
+|   3824: 65 67 6d 65 6e 74 73 27 28 0c 6f 63 6b 09 64 0a   egments'(.ock.d.
+|   3840: 20 09 4e 50 45 47 45 50 20 50 50 09 04 31 50 09    .NPEGEP PP..1P.
+|   3856: 20 0b 45 09 0c 20 62 0c 6f 63 6b 20 42 0c 4f 42    .E.. b.ock B.OB
+|   3872: 29 6a 00 07 17 20 20 01 81 1f 74 61 62 6c 65 74   )j...  ...tablet
+|   3888: 31 5f 63 6f 6e 74 65 6e 74 74 31 5f 63 6f 6e 74   1_contentt1_cont
+|   3904: 65 6e 74 00 43 52 45 41 54 45 20 54 41 42 4c 45   ent.CREATE TABLE
+|   3920: 20 27 74 31 5f 63 6f 6e 74 65 6e 74 27 28 64 6f    't1_content'(do
+|   3936: 09 64 20 09 4e 50 45 47 45 50 20 50 50 09 0d 0c   .d .NPEGEP PP...
+|   3952: 50 09 20 0b 45 09 0c 20 27 03 03 01 27 0c 20 0a   P. .E.. '...'. .
+|   3968: 27 03 01 02 27 0c 20 27 03 02 03 27 29 38 00 06   '...'. '...')8..
+|   3984: 17 10 10 08 5f 74 61 62 6c 65 74 31 74 31 43 52   ...._tablet1t1CR
+|   4000: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4016: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 33   LE t1 USING fts3
+| page 5 offset 16384
+|      0: 0d 00 00 00 02 00 00 00 00 00 0b a0 00 00 00 00   ................
+|   2976: 82 0a 02 08 00 00 00 00 17 84 06 00 00 00 00 00   ................
+|   2992: 00 01 00 04 00 00 00 00 00 08 00 00 00 00 00 00   ................
+|   3008: 00 00 03 00 00 00 00 01 00 03 00 00 00 00 01 00   ................
+|   3024: 03 00 00 00 00 07 00 00 00 00 00 00 00 03 00 00   ................
+|   3040: 00 00 08 00 00 00 00 00 00 00 00 03 00 00 00 00   ................
+|   3056: 06 00 00 00 00 00 00 03 00 00 00 00 04 00 00 00   ................
+|   3072: 00 03 00 00 00 00 06 65 6e 61 62 6c 65 09 25 09   .......enable.%.
+|   3088: 05 04 04 04 04 00 00 00 08 00 00 00 00 00 00 00   ................
+|   3104: 00 03 00 00 00 00 04 00 00 00 00 03 00 00 00 00   ................
+|   3120: 01 00 03 00 00 00 00 03 00 00 00 03 00 00 00 00   ................
+|   3136: 06 00 00 00 00 00 00 03 00 00 00 00 05 6a 73 6f   .............jso
+|   3152: 6e 31 03 25 13 00 00 04 00 00 00 00 03 00 00 00   n1.%............
+|   3168: 00 03 00 00 00 03 00 00 00 00 05 00 00 00 00 00   ................
+|   3184: 03 00 00 00 00 04 00 00 00 00 03 00 00 00 00 04   ................
+|   3200: 00 00 00 00 03 00 00 00 00 05 72 74 72 65 65 03   ..........rtree.
+|   3216: 25 01 00 0d 0a 07 08 01 ff ff ff ff ff 01 00 00   %...............
+| page 6 offset 20480
+|      0: 0a 00 00 00 02 00 00 00 0f fb 0f f5 00 00 00 00   ................
+|   4080: 00 00 00 00 00 05 04 09 00 01 02 04 00 00 00 00   ................
+| end crash-10b0f1037e9c85.db
+}]} {}
+
+do_catchsql_test 2.1 {
+  SELECT 0 FROM t1 WHERE t1 MATCH 'rtree NEAR rtree"json1 enable"';
+} {1 {database disk image is malformed}}
+
+finish_test
diff --git a/test/fts3cov.test b/test/fts3cov.test
new file mode 100644
index 0000000000000000000000000000000000000000..5d838365764ed246a046aa6d260f0d2f030b9755
--- /dev/null
+++ b/test/fts3cov.test
@@ -0,0 +1,434 @@
+# 2009 December 03
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# The tests in this file are structural coverage tests for FTS3.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If this build does not include FTS3, skip the tests in this file.
+#
+ifcapable !fts3 { finish_test ; return }
+source $testdir/fts3_common.tcl
+source $testdir/malloc_common.tcl
+
+set DO_MALLOC_TEST 0
+set testprefix fts3cov
+
+#--------------------------------------------------------------------------
+# When it first needs to read a block from the %_segments table, the FTS3 
+# module compiles an SQL statement for that purpose. The statement is 
+# stored and reused each subsequent time a block is read. This test case 
+# tests the effects of an OOM error occuring while compiling the statement.
+#
+# Similarly, when FTS3 first needs to scan through a set of segment leaves
+# to find a set of documents that matches a term, it allocates a string
+# containing the text of the required SQL, and compiles one or more 
+# statements to traverse the leaves. This test case tests that OOM errors
+# that occur while allocating this string and statement are handled correctly
+# also.
+#
+do_test fts3cov-1.1 {
+  execsql { 
+    CREATE VIRTUAL TABLE t1 USING fts3(x);
+    INSERT INTO t1(t1) VALUES('nodesize=24');
+    BEGIN;
+      INSERT INTO t1 VALUES('Is the night chilly and dark?');
+      INSERT INTO t1 VALUES('The night is chilly, but not dark.');
+      INSERT INTO t1 VALUES('The thin gray cloud is spread on high,');
+      INSERT INTO t1 VALUES('It covers but not hides the sky.');
+    COMMIT;
+    SELECT count(*)>0 FROM t1_segments;
+  }
+} {1}
+
+set DO_MALLOC_TEST 1
+do_restart_select_test fts3cov-1.2 {
+  SELECT docid FROM t1 WHERE t1 MATCH 'chilly';
+} {1 2}
+set DO_MALLOC_TEST 0
+
+#--------------------------------------------------------------------------
+# When querying the full-text index, if an expected internal node block is 
+# missing from the %_segments table, or if a NULL value is stored in the 
+# %_segments table instead of a binary blob, database corruption should be 
+# reported.
+#
+# Even with tiny 24 byte nodes, it takes a fair bit of data to produce a
+# segment b-tree that uses the %_segments table to store internal nodes. 
+#
+do_test fts3cov-2.1 {
+  execsql {
+    INSERT INTO t1(t1) VALUES('nodesize=24');
+    BEGIN;
+      INSERT INTO t1 VALUES('The moon is behind, and at the full;');
+      INSERT INTO t1 VALUES('And yet she looks both small and dull.');
+      INSERT INTO t1 VALUES('The night is chill, the cloud is gray:');
+      INSERT INTO t1 VALUES('''T is a month before the month of May,');
+      INSERT INTO t1 VALUES('And the Spring comes slowly up this way.');
+      INSERT INTO t1 VALUES('The lovely lady, Christabel,');
+      INSERT INTO t1 VALUES('Whom her father loves so well,');
+      INSERT INTO t1 VALUES('What makes her in the wood so late,');
+      INSERT INTO t1 VALUES('A furlong from the castle gate?');
+      INSERT INTO t1 VALUES('She had dreams all yesternight');
+      INSERT INTO t1 VALUES('Of her own betrothed knight;');
+      INSERT INTO t1 VALUES('And she in the midnight wood will pray');
+      INSERT INTO t1 VALUES('For the weal of her lover that''s far away.');
+    COMMIT;
+  }
+  execsql {
+    INSERT INTO t1(t1) VALUES('optimize');
+    SELECT substr(hex(root), 1, 2) FROM t1_segdir;
+  }
+} {03}
+
+# Test the "missing entry" case:
+sqlite3_db_config db DEFENSIVE 0
+do_test fts3cov-2.2 {
+  set root [db one {SELECT root FROM t1_segdir}]
+  read_fts3varint [string range $root 1 end] left_child
+  execsql { DELETE FROM t1_segments WHERE blockid = $left_child }
+} {}
+do_error_test fts3cov-2.3 {
+  SELECT * FROM t1 WHERE t1 MATCH 'c*'
+} {database disk image is malformed}
+
+# Test the "replaced with NULL" case:
+do_test fts3cov-2.4 {
+  execsql { INSERT INTO t1_segments VALUES($left_child, NULL) }
+} {}
+do_error_test fts3cov-2.5 {
+  SELECT * FROM t1 WHERE t1 MATCH 'cloud'
+} {database disk image is malformed}
+
+#--------------------------------------------------------------------------
+# The following tests are to test the effects of OOM errors while storing
+# terms in the pending-hash table. Specifically, while creating doclist
+# blobs to store in the table. More specifically, to test OOM errors while
+# appending column numbers to doclists. For example, if a doclist consists
+# of:
+#
+#   <docid> <column 0 offset-list> 0x01 <column N> <column N offset-list>
+#
+# The following tests check that malloc errors encountered while appending
+# the "0x01 <column N>" data to the dynamically growable blob used to 
+# accumulate the doclist in memory are handled correctly.
+#
+do_test fts3cov-3.1 {
+  set cols [list]
+  set vals [list]
+  for {set i 0} {$i < 120} {incr i} {
+    lappend cols "col$i"
+    lappend vals "'word'"
+  }
+  execsql "CREATE VIRTUAL TABLE t2 USING fts3([join $cols ,])"
+} {}
+set DO_MALLOC_TEST 1 
+do_write_test fts3cov-3.2 t2_content "
+  INSERT INTO t2(docid, [join $cols ,]) VALUES(1, [join $vals ,])
+"
+do_write_test fts3cov-3.3 t2_content "
+  INSERT INTO t2(docid, [join $cols ,]) VALUES(200, [join $vals ,])
+"
+do_write_test fts3cov-3.4 t2_content "
+  INSERT INTO t2(docid, [join $cols ,]) VALUES(60000, [join $vals ,])
+"
+
+#-------------------------------------------------------------------------
+# If too much data accumulates in the pending-terms hash table, it is
+# flushed to the database automatically, even if the transaction has not
+# finished. The following tests check the effects of encountering an OOM 
+# while doing this.
+#
+do_test fts3cov-4.1 {
+  execsql {
+    CREATE VIRTUAL TABLE t3 USING fts3(x);
+    INSERT INTO t3(t3) VALUES('nodesize=24');
+    INSERT INTO t3(t3) VALUES('maxpending=100');
+  }
+} {}
+set DO_MALLOC_TEST 1 
+do_write_test fts3cov-4.2 t3_content {
+  INSERT INTO t3(docid, x)
+    SELECT 1, 'Then Christabel stretched forth her hand,' UNION ALL
+    SELECT 3, 'And comforted fair Geraldine:'             UNION ALL
+    SELECT 4, '''O well, bright dame, may you command'    UNION ALL
+    SELECT 5, 'The service of Sir Leoline;'               UNION ALL
+    SELECT 2, 'And gladly our stout chivalry'             UNION ALL
+    SELECT 7, 'Will he send forth, and friends withal,'   UNION ALL
+    SELECT 8, 'To guide and guard you safe and free'      UNION ALL
+    SELECT 6, 'Home to your noble father''s hall.'''
+}
+
+#-------------------------------------------------------------------------
+# When building the internal tree structure for each segment b-tree, FTS3
+# assumes that the content of each internal node will be less than
+# $nodesize bytes, where $nodesize is the advisory node size. If this turns
+# out to be untrue, then an extra buffer must be malloc'd for each term.
+# This test case tests these paths and the effects of said mallocs failing
+# by inserting insert a document with some fairly large terms into a
+# full-text table with a very small node-size. 
+#
+# Test this handling of large terms in three contexts:
+#
+#   1. When flushing the pending-terms table.
+#   2. When optimizing the data structures using the INSERT syntax. 
+#   2. When optimizing the data structures using the deprecated SELECT syntax. 
+#
+do_test fts3cov-5.1 {
+  execsql {
+    CREATE VIRTUAL TABLE t4 USING fts3(x);
+    INSERT INTO t4(t4) VALUES('nodesize=24');
+  }
+} {}
+set DO_MALLOC_TEST 1
+
+# Test when flushing pending-terms table.
+do_write_test fts3cov-5.2 t4_content {
+  INSERT INTO t4
+    SELECT 'ItisanancientMarinerAndhestoppethoneofthreeAA' UNION ALL
+    SELECT 'ItisanancientMarinerAndhestoppethoneofthreeBB' UNION ALL
+    SELECT 'ItisanancientMarinerAndhestoppethoneofthreeCC' UNION ALL
+    SELECT 'BythylonggreybeardandglitteringeyeNowwhereforestoppstAA' UNION ALL
+    SELECT 'BythylonggreybeardandglitteringeyeNowwhereforestoppstBB' UNION ALL
+    SELECT 'BythylonggreybeardandglitteringeyeNowwhereforestoppstCC'
+}
+
+# Test when optimizing via INSERT.
+do_test fts3cov-5.3 { execsql { INSERT INTO t4 VALUES('extra!') } } {}
+do_write_test fts3cov-5.2 t4_segments { INSERT INTO t4(t4) VALUES('optimize') }
+
+# Test when optimizing via SELECT.
+do_test fts3cov-5.5 { execsql { INSERT INTO t4 VALUES('more extra!') } } {}
+do_write_test fts3cov-5.6 t4_segments {
+  SELECT * FROM (SELECT optimize(t4) FROM t4 LIMIT 1)
+  EXCEPT SELECT 'Index optimized'
+}
+
+#-------------------------------------------------------------------------
+# When merging all segments at a given level to create a single segment
+# at level+1, FTS3 runs a query of the form:
+#
+#   SELECT count(*) FROM %_segdir WHERE level = ?
+#
+# The query is compiled the first time this operation is required and
+# reused thereafter. This test aims to test the effects of an OOM while
+# preparing and executing this query for the first time.
+#
+# Then, keep inserting rows into the table so that the effects of an OOM
+# while re-executing the same query can also be tested.
+#
+do_test fts3cov-6.1 {
+  execsql { CREATE VIRTUAL TABLE t5 USING fts3(x) }
+  for {set i 0} {$i<16} {incr i} { execsql "INSERT INTO t5 VALUES('term$i')" }
+  execsql { SELECT count(*) FROM t5_segdir }
+} {16}
+
+# First time.
+db close
+sqlite3 db test.db
+do_write_test fts3cov-6.2 t5_content {
+  INSERT INTO t5 VALUES('segment number 16!');
+}
+
+# Second time.
+do_test fts3cov-6.3 {
+  for {set i 1} {$i<16} {incr i} { execsql "INSERT INTO t5 VALUES('term$i')" }
+  execsql { SELECT count(*) FROM t5_segdir }
+} {17}
+do_write_test fts3cov-6.4 t5_content {
+  INSERT INTO t5 VALUES('segment number 16!');
+}
+
+#-------------------------------------------------------------------------
+# Update the docid of a row. Test this in two scenarios:
+#
+#   1. When the row being updated is the only row in the table.
+#   2. When it is not.
+#
+# The two cases above take different paths because in case 1 all data 
+# structures can simply be emptied before inserting the new row record.
+# In case 2, the data structures actually have to be updated.
+#
+do_test fts3cov-7.1 {
+  execsql {
+    CREATE VIRTUAL TABLE t7 USING fts3(a, b, c);
+    INSERT INTO t7 VALUES('A', 'B', 'C');
+    UPDATE t7 SET docid = 5;
+    SELECT docid, * FROM t7;
+  }
+} {5 A B C}
+do_test fts3cov-7.2 {
+  execsql {
+    INSERT INTO t7 VALUES('D', 'E', 'F');
+    UPDATE t7 SET docid = 1 WHERE docid = 6;
+    SELECT docid, * FROM t7;
+  }
+} {1 D E F 5 A B C}
+
+#-------------------------------------------------------------------------
+# If a set of documents are modified within a transaction, the 
+# pending-terms table must be flushed each time a document with a docid
+# less than or equal to the previous docid is modified. 
+#
+# This test checks the effects of an OOM error occuring when the 
+# pending-terms table is flushed for this reason as part of a DELETE 
+# statement.
+#
+do_malloc_test fts3cov-8 -sqlprep {
+  BEGIN;
+    CREATE VIRTUAL TABLE t8 USING fts3;
+    INSERT INTO t8 VALUES('the output of each batch run');
+    INSERT INTO t8 VALUES('(possibly a day''s work)');
+    INSERT INTO t8 VALUES('was written to two separate disks');
+  COMMIT;
+} -sqlbody {
+  BEGIN;
+    DELETE FROM t8 WHERE rowid = 3;
+    DELETE FROM t8 WHERE rowid = 2;
+    DELETE FROM t8 WHERE rowid = 1;
+  COMMIT;
+}
+
+#-------------------------------------------------------------------------
+# Test some branches in the code that handles "special" inserts like:
+#
+#   INSERT INTO t1(t1) VALUES('optimize');
+#
+# Also test that an optimize (INSERT method) works on an empty table.
+#
+set DO_MALLOC_TEST 0
+do_test fts3cov-9.1 {
+  execsql { CREATE VIRTUAL TABLE xx USING fts3 }
+} {}
+do_error_test fts3cov-9.2 {
+  INSERT INTO xx(xx) VALUES('optimise');   -- British spelling
+} {SQL logic error}
+do_error_test fts3cov-9.3 {
+  INSERT INTO xx(xx) VALUES('short');
+} {SQL logic error}
+do_error_test fts3cov-9.4 {
+  INSERT INTO xx(xx) VALUES('waytoolongtobecorrect');
+} {SQL logic error}
+do_test fts3cov-9.5 {
+  execsql { INSERT INTO xx(xx) VALUES('optimize') }
+} {}
+
+#-------------------------------------------------------------------------
+# Test that a table can be optimized in the middle of a transaction when
+# the pending-terms table is non-empty. This case involves some extra
+# branches because data must be read not only from the database, but
+# also from the pending-terms table.
+#
+do_malloc_test fts3cov-10 -sqlprep {
+  CREATE VIRTUAL TABLE t10 USING fts3;
+  INSERT INTO t10 VALUES('Optimising images for the web is a tricky business');
+  BEGIN;
+    INSERT INTO t10 VALUES('You have to get the right balance between');
+} -sqlbody {
+  INSERT INTO t10(t10) VALUES('optimize');
+}
+
+#-------------------------------------------------------------------------
+# Test a full-text query for a term that was once in the index, but is
+# no longer.
+#
+do_test fts3cov-11.1 {
+  execsql { 
+    CREATE VIRTUAL TABLE xx USING fts3;
+    INSERT INTO xx VALUES('one two three');
+    INSERT INTO xx VALUES('four five six');
+    DELETE FROM xx WHERE docid = 1;
+  }
+  execsql { SELECT * FROM xx WHERE xx MATCH 'two' }
+} {}
+
+
+do_malloc_test fts3cov-12 -sqlprep {
+  CREATE VIRTUAL TABLE t12 USING fts3;
+  INSERT INTO t12 VALUES('is one of the two togther');
+  BEGIN;
+    INSERT INTO t12 VALUES('one which was appropriate at the time');
+} -sqlbody {
+  SELECT * FROM t12 WHERE t12 MATCH 'one'
+}
+
+do_malloc_test fts3cov-13 -sqlprep {
+  PRAGMA encoding = 'UTF-16';
+  CREATE VIRTUAL TABLE t13 USING fts3;
+  INSERT INTO t13 VALUES('two scalar functions');
+  INSERT INTO t13 VALUES('scalar two functions');
+  INSERT INTO t13 VALUES('functions scalar two');
+} -sqlbody {
+  SELECT snippet(t13, '%%', '%%', '#') FROM t13 WHERE t13 MATCH 'two';
+  SELECT snippet(t13, '%%', '%%') FROM t13 WHERE t13 MATCH 'two';
+  SELECT snippet(t13, '%%') FROM t13 WHERE t13 MATCH 'two';
+}
+
+do_execsql_test 14.0 {
+  CREATE VIRTUAL TABLE t14 USING fts4(a, b);
+  INSERT INTO t14 VALUES('one two three', 'one three four');
+  INSERT INTO t14 VALUES('a b c', 'd e a');
+}
+do_execsql_test 14.1 {
+  SELECT rowid FROM t14 WHERE t14 MATCH '"one two three"'
+} {1}
+do_execsql_test 14.2 {
+  SELECT rowid FROM t14 WHERE t14 MATCH '"one four"'
+} {}
+do_execsql_test 14.3 {
+  SELECT rowid FROM t14 WHERE t14 MATCH '"e a"'
+} {2}
+do_execsql_test 14.5 {
+  SELECT rowid FROM t14 WHERE t14 MATCH '"e b"'
+} {}
+do_catchsql_test 14.6 {
+  SELECT rowid FROM t14 WHERE rowid MATCH 'one'
+} {1 {unable to use function MATCH in the requested context}}
+do_catchsql_test 14.7 {
+  SELECT rowid FROM t14 WHERE docid MATCH 'one'
+} {1 {unable to use function MATCH in the requested context}}
+
+do_execsql_test 15.0 {
+  CREATE VIRTUAL TABLE t15 USING fts4(a, b, c);
+  INSERT INTO t15 VALUES('abc def ghi', 'abc2 def2 ghi2', 'abc3 def3 ghi3');
+  INSERT INTO t15 VALUES('abc2 def2 ghi2', 'abc2 def2 ghi2', 'abc def3 ghi3');
+}
+do_execsql_test 15.1 {
+  SELECT rowid FROM t15 WHERE t15 MATCH '"abc* def2"'
+} {1 2}
+
+# Test a corruption case.
+#
+sqlite3_db_config db DEFENSIVE 0
+do_execsql_test 16.1 {
+  CREATE VIRTUAL TABLE t16 USING fts4;
+  INSERT INTO t16 VALUES('theoretical work to examine the relationship');
+  INSERT INTO t16 VALUES('solution of our problems on the invisible');
+  DELETE FROM t16_content WHERE rowid = 2;
+}
+do_catchsql_test 16.2 {
+  SELECT * FROM t16 WHERE t16 MATCH 'invisible'
+} {1 {database disk image is malformed}}
+
+# And another corruption test case.
+#
+do_execsql_test 17.1 {
+  CREATE VIRTUAL TABLE t17 USING fts4;
+  INSERT INTO t17(content) VALUES('one one one');
+  UPDATE t17_segdir SET root = X'00036F6E65FFFFFFFFFFFFFFFFFFFFFF02030300'
+} {}
+do_catchsql_test 17.2 {
+  SELECT * FROM t17 WHERE t17 MATCH 'one'
+} {1 {database disk image is malformed}}
+
+
+
+
+finish_test
diff --git a/test/fts3d.test b/test/fts3d.test
new file mode 100644
index 0000000000000000000000000000000000000000..b0547ce7abc00d710a54967239587eb84b988886
--- /dev/null
+++ b/test/fts3d.test
@@ -0,0 +1,372 @@
+# 2008 June 26
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The focus
+# of this script is testing the FTS3 module's optimize() function.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/fts3_common.tcl
+
+# If SQLITE_ENABLE_FTS3 is not defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+#*************************************************************************
+# Utility function to check for the expected terms in the segment
+# level/index.  _all version does same but for entire index.
+proc check_terms {test level index terms} {
+  set where "level = $level AND idx = $index"
+  do_test $test.terms [list fts3_terms t1 $where] $terms
+}
+proc check_terms_all {test terms} {
+  do_test $test.terms [list fts3_terms t1 1] $terms
+}
+
+# Utility function to check for the expected doclist for the term in
+# segment level/index.  _all version does same for entire index.
+proc check_doclist {test level index term doclist} {
+  set where "level = $level AND idx = $index"
+  do_test $test.doclist [list fts3_doclist t1 $term $where] $doclist
+}
+proc check_doclist_all {test term doclist} {
+  do_test $test.doclist [list fts3_doclist t1 $term 1] $doclist
+}
+
+#*************************************************************************
+# Test results when all rows are deleted and one is added back.
+# Previously older segments would continue to exist, but now the index
+# should be dropped when the table is empty.  The results should look
+# exactly like we never added the earlier rows in the first place.
+db eval {
+  DROP TABLE IF EXISTS t1;
+  CREATE VIRTUAL TABLE t1 USING fts3(c);
+  INSERT INTO t1 (docid, c) VALUES (1, 'This is a test');
+  INSERT INTO t1 (docid, c) VALUES (2, 'That was a test');
+  INSERT INTO t1 (docid, c) VALUES (3, 'This is a test');
+  DELETE FROM t1 WHERE 1=1; -- Delete each row rather than dropping table.
+  INSERT INTO t1 (docid, c) VALUES (1, 'This is a test');
+}
+
+# Should be a single initial segment.
+do_test fts3d-1.segments {
+  execsql {
+    SELECT level, idx FROM t1_segdir ORDER BY level, idx;
+  }
+} {0 0}
+do_test fts3d-1.matches {
+  execsql {
+    SELECT OFFSETS(t1) FROM t1
+     WHERE t1 MATCH 'this OR that OR was OR a OR is OR test' ORDER BY docid;
+  }
+} {{0 0 0 4 0 4 5 2 0 3 8 1 0 5 10 4}}
+
+check_terms_all fts3d-1.1 {a is test this}
+check_doclist_all fts3d-1.1.1 a {[1 0[2]]}
+check_doclist_all fts3d-1.1.2 is {[1 0[1]]}
+check_doclist_all fts3d-1.1.3 test {[1 0[3]]}
+check_doclist_all fts3d-1.1.4 this {[1 0[0]]}
+
+check_terms   fts3d-1.2   0 0 {a is test this}
+check_doclist fts3d-1.2.1 0 0 a {[1 0[2]]}
+check_doclist fts3d-1.2.2 0 0 is {[1 0[1]]}
+check_doclist fts3d-1.2.3 0 0 test {[1 0[3]]}
+check_doclist fts3d-1.2.4 0 0 this {[1 0[0]]}
+
+#*************************************************************************
+# Test results when everything is optimized manually.
+# NOTE(shess): This is a copy of fts3c-1.3.  I've pulled a copy here
+# because fts3d-2 and fts3d-3 should have identical results.
+db eval {
+  DROP TABLE IF EXISTS t1;
+  CREATE VIRTUAL TABLE t1 USING fts3(c);
+  INSERT INTO t1 (docid, c) VALUES (1, 'This is a test');
+  INSERT INTO t1 (docid, c) VALUES (2, 'That was a test');
+  INSERT INTO t1 (docid, c) VALUES (3, 'This is a test');
+  DELETE FROM t1 WHERE docid IN (1,3);
+  DROP TABLE IF EXISTS t1old;
+  ALTER TABLE t1 RENAME TO t1old;
+  CREATE VIRTUAL TABLE t1 USING fts3(c);
+  INSERT INTO t1 (docid, c) SELECT docid, c FROM t1old;
+  DROP TABLE t1old;
+}
+
+# Should be a single optimal segment with the same logical results.
+do_test fts3d-2.segments {
+  execsql {
+    SELECT level, idx FROM t1_segdir ORDER BY level, idx;
+  }
+} {0 0}
+do_test fts3d-2.matches {
+  execsql {
+    SELECT OFFSETS(t1) FROM t1
+     WHERE t1 MATCH 'this OR that OR was OR a OR is OR test' ORDER BY docid;
+  }
+} {{0 1 0 4 0 2 5 3 0 3 9 1 0 5 11 4}}
+
+check_terms_all fts3d-2.1 {a test that was}
+check_doclist_all fts3d-2.1.1 a {[2 0[2]]}
+check_doclist_all fts3d-2.1.2 test {[2 0[3]]}
+check_doclist_all fts3d-2.1.3 that {[2 0[0]]}
+check_doclist_all fts3d-2.1.4 was {[2 0[1]]}
+
+check_terms fts3d-2.2 0 0 {a test that was}
+check_doclist fts3d-2.2.1 0 0 a {[2 0[2]]}
+check_doclist fts3d-2.2.2 0 0 test {[2 0[3]]}
+check_doclist fts3d-2.2.3 0 0 that {[2 0[0]]}
+check_doclist fts3d-2.2.4 0 0 was {[2 0[1]]}
+
+#*************************************************************************
+# Test results when everything is optimized via optimize().
+db eval {
+  DROP TABLE IF EXISTS t1;
+  CREATE VIRTUAL TABLE t1 USING fts3(c);
+  INSERT INTO t1 (docid, c) VALUES (1, 'This is a test');
+  INSERT INTO t1 (docid, c) VALUES (2, 'That was a test');
+  INSERT INTO t1 (docid, c) VALUES (3, 'This is a test');
+  DELETE FROM t1 WHERE docid IN (1,3);
+  SELECT OPTIMIZE(t1) FROM t1 LIMIT 1;
+}
+
+# Should be a single optimal segment with the same logical results.
+do_test fts3d-3.segments {
+  execsql {
+    SELECT level, idx FROM t1_segdir ORDER BY level, idx;
+  }
+} {0 0}
+do_test fts3d-3.matches {
+  execsql {
+    SELECT OFFSETS(t1) FROM t1
+     WHERE t1 MATCH 'this OR that OR was OR a OR is OR test' ORDER BY docid;
+  }
+} {{0 1 0 4 0 2 5 3 0 3 9 1 0 5 11 4}}
+
+check_terms_all fts3d-3.1 {a test that was}
+check_doclist_all fts3d-3.1.1 a {[2 0[2]]}
+check_doclist_all fts3d-3.1.2 test {[2 0[3]]}
+check_doclist_all fts3d-3.1.3 that {[2 0[0]]}
+check_doclist_all fts3d-3.1.4 was {[2 0[1]]}
+
+check_terms fts3d-3.2 0 0 {a test that was}
+check_doclist fts3d-3.2.1 0 0 a {[2 0[2]]}
+check_doclist fts3d-3.2.2 0 0 test {[2 0[3]]}
+check_doclist fts3d-3.2.3 0 0 that {[2 0[0]]}
+check_doclist fts3d-3.2.4 0 0 was {[2 0[1]]}
+
+#*************************************************************************
+# Test optimize() against a table involving segment merges.
+# NOTE(shess): Since there's no transaction, each of the INSERT/UPDATE
+# statements generates a segment.
+db eval {
+  DROP TABLE IF EXISTS t1;
+  CREATE VIRTUAL TABLE t1 USING fts3(c);
+
+  INSERT INTO t1 (rowid, c) VALUES (1, 'This is a test');
+  INSERT INTO t1 (rowid, c) VALUES (2, 'That was a test');
+  INSERT INTO t1 (rowid, c) VALUES (3, 'This is a test');
+
+  UPDATE t1 SET c = 'This is a test one' WHERE rowid = 1;
+  UPDATE t1 SET c = 'That was a test one' WHERE rowid = 2;
+  UPDATE t1 SET c = 'This is a test one' WHERE rowid = 3;
+
+  UPDATE t1 SET c = 'This is a test two' WHERE rowid = 1;
+  UPDATE t1 SET c = 'That was a test two' WHERE rowid = 2;
+  UPDATE t1 SET c = 'This is a test two' WHERE rowid = 3;
+
+  UPDATE t1 SET c = 'This is a test three' WHERE rowid = 1;
+  UPDATE t1 SET c = 'That was a test three' WHERE rowid = 2;
+  UPDATE t1 SET c = 'This is a test three' WHERE rowid = 3;
+
+  UPDATE t1 SET c = 'This is a test four' WHERE rowid = 1;
+  UPDATE t1 SET c = 'That was a test four' WHERE rowid = 2;
+  UPDATE t1 SET c = 'This is a test four' WHERE rowid = 3;
+
+  UPDATE t1 SET c = 'This is a test' WHERE rowid = 1;
+  UPDATE t1 SET c = 'That was a test' WHERE rowid = 2;
+  UPDATE t1 SET c = 'This is a test' WHERE rowid = 3;
+}
+
+# 2 segments in level 0, 1 in level 1 (18 segments created, 16
+# merged).
+do_test fts3d-4.segments {
+  execsql {
+    SELECT level, idx FROM t1_segdir ORDER BY level, idx;
+  }
+} {0 0 0 1 1 0}
+
+do_test fts3d-4.matches {
+  execsql {
+    SELECT OFFSETS(t1) FROM t1
+     WHERE t1 MATCH 'this OR that OR was OR a OR is OR test' ORDER BY docid;
+  }
+} [list {0 0 0 4 0 4 5 2 0 3 8 1 0 5 10 4} \
+        {0 1 0 4 0 2 5 3 0 3 9 1 0 5 11 4} \
+        {0 0 0 4 0 4 5 2 0 3 8 1 0 5 10 4}]
+
+db eval {SELECT c FROM t1 }
+check_terms_all fts3d-4.1      {a four is test that this was}
+check_doclist_all fts3d-4.1.1  a {[1 0[2]] [2 0[2]] [3 0[2]]}
+check_doclist_all fts3d-4.1.2  four {}
+check_doclist_all fts3d-4.1.3  is {[1 0[1]] [3 0[1]]}
+#check_doclist_all fts3d-4.1.4  one {}
+check_doclist_all fts3d-4.1.5  test {[1 0[3]] [2 0[3]] [3 0[3]]}
+check_doclist_all fts3d-4.1.6  that {[2 0[0]]}
+check_doclist_all fts3d-4.1.7  this {[1 0[0]] [3 0[0]]}
+#check_doclist_all fts3d-4.1.8  three {}
+#check_doclist_all fts3d-4.1.9  two {}
+check_doclist_all fts3d-4.1.10 was {[2 0[1]]}
+
+check_terms fts3d-4.2     0 0 {a four test that was}
+check_doclist fts3d-4.2.1 0 0 a {[2 0[2]]}
+check_doclist fts3d-4.2.2 0 0 four {[2]}
+check_doclist fts3d-4.2.3 0 0 test {[2 0[3]]}
+check_doclist fts3d-4.2.4 0 0 that {[2 0[0]]}
+check_doclist fts3d-4.2.5 0 0 was {[2 0[1]]}
+
+check_terms fts3d-4.3     0 1 {a four is test this}
+check_doclist fts3d-4.3.1 0 1 a {[3 0[2]]}
+check_doclist fts3d-4.3.2 0 1 four {[3]}
+check_doclist fts3d-4.3.3 0 1 is {[3 0[1]]}
+check_doclist fts3d-4.3.4 0 1 test {[3 0[3]]}
+check_doclist fts3d-4.3.5 0 1 this {[3 0[0]]}
+
+check_terms fts3d-4.4      1 0 {a four is test that this was}
+check_doclist fts3d-4.4.1  1 0 a {[1 0[2]] [2 0[2]] [3 0[2]]}
+check_doclist fts3d-4.4.2  1 0 four {[2 0[4]] [3 0[4]]}
+check_doclist fts3d-4.4.3  1 0 is {[1 0[1]] [3 0[1]]}
+#check_doclist fts3d-4.4.4  1 0 one {[1] [2] [3]}
+check_doclist fts3d-4.4.5  1 0 test {[1 0[3]] [2 0[3]] [3 0[3]]}
+check_doclist fts3d-4.4.6  1 0 that {[2 0[0]]}
+check_doclist fts3d-4.4.7  1 0 this {[1 0[0]] [3 0[0]]}
+#check_doclist fts3d-4.4.8  1 0 three {[1] [2] [3]}
+#check_doclist fts3d-4.4.9  1 0 two {[1] [2] [3]}
+check_doclist fts3d-4.4.10 1 0 was {[2 0[1]]}
+
+# Optimize should leave the result in the level of the highest-level
+# prior segment.
+do_test fts3d-4.5 {
+  execsql {
+    SELECT OPTIMIZE(t1) FROM t1 LIMIT 1;
+    SELECT level, idx FROM t1_segdir ORDER BY level, idx;
+  }
+} {{Index optimized} 1 0}
+
+# Identical to fts3d-4.matches.
+do_test fts3d-4.5.matches {
+  execsql {
+    SELECT OFFSETS(t1) FROM t1
+     WHERE t1 MATCH 'this OR that OR was OR a OR is OR test' ORDER BY docid;
+  }
+} [list {0 0 0 4 0 4 5 2 0 3 8 1 0 5 10 4} \
+        {0 1 0 4 0 2 5 3 0 3 9 1 0 5 11 4} \
+        {0 0 0 4 0 4 5 2 0 3 8 1 0 5 10 4}]
+
+check_terms_all fts3d-4.5.1     {a is test that this was}
+check_doclist_all fts3d-4.5.1.1 a {[1 0[2]] [2 0[2]] [3 0[2]]}
+check_doclist_all fts3d-4.5.1.2 is {[1 0[1]] [3 0[1]]}
+check_doclist_all fts3d-4.5.1.3 test {[1 0[3]] [2 0[3]] [3 0[3]]}
+check_doclist_all fts3d-4.5.1.4 that {[2 0[0]]}
+check_doclist_all fts3d-4.5.1.5 this {[1 0[0]] [3 0[0]]}
+check_doclist_all fts3d-4.5.1.6 was {[2 0[1]]}
+
+check_terms fts3d-4.5.2     1 0 {a is test that this was}
+check_doclist fts3d-4.5.2.1 1 0 a {[1 0[2]] [2 0[2]] [3 0[2]]}
+check_doclist fts3d-4.5.2.2 1 0 is {[1 0[1]] [3 0[1]]}
+check_doclist fts3d-4.5.2.3 1 0 test {[1 0[3]] [2 0[3]] [3 0[3]]}
+check_doclist fts3d-4.5.2.4 1 0 that {[2 0[0]]}
+check_doclist fts3d-4.5.2.5 1 0 this {[1 0[0]] [3 0[0]]}
+check_doclist fts3d-4.5.2.6 1 0 was {[2 0[1]]}
+
+# Re-optimizing does nothing.
+do_test fts3d-5.0 {
+  execsql {
+    SELECT OPTIMIZE(t1) FROM t1 LIMIT 1;
+    SELECT level, idx FROM t1_segdir ORDER BY level, idx;
+  }
+} {{Index already optimal} 1 0}
+
+# Even if we move things around, still does nothing.
+sqlite3_db_config db DEFENSIVE 0
+do_test fts3d-5.1 {
+  execsql {
+    UPDATE t1_segdir SET level = 2 WHERE level = 1 AND idx = 0;
+    SELECT OPTIMIZE(t1) FROM t1 LIMIT 1;
+    SELECT level, idx FROM t1_segdir ORDER BY level, idx;
+  }
+} {{Index already optimal} 2 0}
+
+
+# ALTER TABLE RENAME should work regardless of the database encoding.
+#
+do_test fts3d-6.0 {
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+  db eval {
+    PRAGMA encoding=UTF8;
+    CREATE VIRTUAL TABLE fts USING fts3(a,b,c);
+    SELECT name FROM sqlite_master WHERE name GLOB '???_*' ORDER BY 1;
+  }
+} {fts_content fts_segdir fts_segments}
+do_test fts3d-6.1 {
+  db eval {
+    ALTER TABLE fts RENAME TO xyz;
+    SELECT name FROM sqlite_master WHERE name GLOB '???_*' ORDER BY 1;
+  }
+} {xyz_content xyz_segdir xyz_segments}
+do_test fts3d-6.2 {
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+  db eval {
+    PRAGMA encoding=UTF16le;
+    CREATE VIRTUAL TABLE fts USING fts3(a,b,c);
+    SELECT name FROM sqlite_master WHERE name GLOB '???_*' ORDER BY 1;
+  }
+} {fts_content fts_segdir fts_segments}
+do_test fts3d-6.3 {
+  db eval {
+    ALTER TABLE fts RENAME TO xyz;
+    SELECT name FROM sqlite_master WHERE name GLOB '???_*' ORDER BY 1;
+  }
+} {xyz_content xyz_segdir xyz_segments}
+do_test fts3d-6.4 {
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+  db eval {
+    PRAGMA encoding=UTF16be;
+    CREATE VIRTUAL TABLE fts USING fts3(a,b,c);
+    SELECT name FROM sqlite_master WHERE name GLOB '???_*' ORDER BY 1;
+  }
+} {fts_content fts_segdir fts_segments}
+do_test fts3d-6.5 {
+  db eval {
+    ALTER TABLE fts RENAME TO xyz;
+    SELECT name FROM sqlite_master WHERE name GLOB '???_*' ORDER BY 1;
+  }
+} {xyz_content xyz_segdir xyz_segments}
+
+# ALTER TABLE RENAME on an FTS3 table following an incr-merge op.
+#
+do_test fts3d-6.6 {
+  execsql { INSERT INTO xyz(xyz) VALUES('merge=2,2') }
+  sqlite3 db test.db
+  execsql { 
+    ALTER TABLE xyz RENAME TO ott;
+    SELECT name FROM sqlite_master WHERE name GLOB '???_*' ORDER BY 1;
+  }
+} {ott_content ott_segdir ott_segments ott_stat}
+ 
+
+finish_test
diff --git a/test/fts3defer.test b/test/fts3defer.test
new file mode 100644
index 0000000000000000000000000000000000000000..5d8395afc1429f3f88ed3f1acb30d3b678bfbb9d
--- /dev/null
+++ b/test/fts3defer.test
@@ -0,0 +1,531 @@
+# 2010 October 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+
+ifcapable !fts3||!fts4_deferred {
+  finish_test
+  return
+}
+
+set sqlite_fts3_enable_parentheses 1
+
+set fts3_simple_deferred_tokens_only 1
+
+set ::testprefix fts3defer
+
+#--------------------------------------------------------------------------
+# Test cases fts3defer-1.* are the "warm body" cases. The database contains
+# one row with 15000 instances of the token "a". This makes the doclist for
+# "a" so large that FTS3 will avoid loading it in most cases.
+#
+# To show this, test cases fts3defer-1.2.* execute a bunch of FTS3 queries
+# involving token "a". Then, fts3defer-1.3.* replaces the doclist for token
+# "a" with all zeroes and fts3defer-1.4.* repeats the tests from 1.2. If
+# the tests still work, we can conclude that the doclist for "a" was not
+# used.
+# 
+
+set aaa [string repeat "a " 15000]
+
+do_execsql_test 1.1 {
+  CREATE VIRTUAL TABLE t1 USING fts4;
+  BEGIN;
+    INSERT INTO t1 VALUES('this is a dog');
+    INSERT INTO t1 VALUES('an instance of a phrase');
+    INSERT INTO t1 VALUES('an instance of a longer phrase');
+    INSERT INTO t1 VALUES($aaa);
+  COMMIT;
+} {}
+
+set tests {
+  1  {SELECT rowid FROM t1 WHERE t1 MATCH '"a dog"'}                 {1}
+  2  {SELECT rowid FROM t1 WHERE t1 MATCH '"is a dog"'}              {1}
+  3  {SELECT rowid FROM t1 WHERE t1 MATCH '"a longer phrase"'}       {3}
+  4  {SELECT snippet(t1) FROM t1 WHERE t1 MATCH '"a longer phrase"'}  
+     {"an instance of <b>a</b> <b>longer</b> <b>phrase</b>"}
+  5  {SELECT rowid FROM t1 WHERE t1 MATCH 'a dog'}                   {1}
+}
+
+do_select_tests 1.2 $tests
+
+sqlite3_db_config db DEFENSIVE 0
+do_execsql_test 1.3 {
+  SELECT count(*) FROM t1_segments WHERE length(block)>10000;
+  UPDATE t1_segments 
+    SET block = zeroblob(length(block)) 
+    WHERE length(block)>10000;
+} {1}
+
+do_select_tests 1.4 $tests
+
+# Drop the table. It is corrupt now anyhow, so not useful for subsequent tests.
+#
+do_execsql_test 1.5 { DROP TABLE t1 }
+
+#--------------------------------------------------------------------------
+# These tests - fts3defer-2.* - are more rigorous. They test that for a
+# variety of queries, FTS3 and FTS4 return the same results. And that 
+# zeroing the very large doclists that FTS4 does not load does not change
+# the results.
+#
+# They use the following pseudo-randomly generated document data. The
+# tokens "zm" and "jk" are especially common in this dataset. Additionally,
+# two documents are added to the pseudo-random data before it is loaded
+# into FTS4 containing 100,000 instances of the "zm" and "jk" tokens. This
+# makes the doclists for those tokens so large that FTS4 avoids loading them
+# into memory if possible.
+#
+set data [list]
+lappend data [string repeat "zm " 100000]
+lappend data [string repeat "jk " 100000]
+lappend data {*}{
+  "zm zm agmckuiu uhzq nsab jk rrkx duszemmzl hyq jk"
+  "jk uhzq zm zm rgpzmlnmd zm zk jk jk zm"
+  "duszemmzl zm jk xldlpy zm jk sbptoa xh jk xldlpy"
+  "zm xh zm xqf azavwm jk jk trqd rgpzmlnmd jk"
+  "zm vwq urvysbnykk ubwrfqnbjf zk lsz jk doiwavhwwo jk jk"
+  "jk xduvfhk orpfawpx zkhdvkw jk mjpavjuhw zm jk duszemmzl zm"
+  "jk igju jk jk zm hmjf xh zm gwdfhwurx zk"
+  "vgsld jk jk zm hrlipdm jn zm zsmhnf vgsld duszemmzl"
+  "gtuiexzsu aayxpmve zm zm zm drir scpgna xh azavwm uhzq"
+  "farlehdhq hkfoudzftq igju duszemmzl xnxhf ewle zm hrlipdm urvysbnykk kn"
+  "xnxhf jk jk agmckuiu duszemmzl jk zm zm jk vgsld"
+  "zm zm zm jk jk urvysbnykk ogttbykvt zm zm jk"
+  "iasrqgqv zm azavwm zidhxhbtv jk jk mjpavjuhw zm zm ajmvcydy"
+  "rgpzmlnmd tmt mjpavjuhw xh igju jk azavwm fibokdry vgsld ofm"
+  "zm jk vgsld jk xh jk csjqxhgj drir jk pmrb"
+  "xh jk jk zm rrkx duszemmzl mjpavjuhw xldlpy igju zm"
+  "jk hkfoudzftq zf rrkx wdmy jupk jk zm urvysbnykk npywgdvgz"
+  "zm jk zm zm zhbrzadb uenvbm aayxpmve urvysbnykk duszemmzl jk"
+  "uenvbm jk zm fxw xh bdilwmjw mjpavjuhw uv jk zm"
+  "nk jk bnhc pahlds jk igju dzadnqzprr jk jk jk"
+  "uhzq uv zm duszemmzl tlqix jk jk xh jk zm"
+  "jk zm agmckuiu urvysbnykk jk jk zm zm jk jk"
+  "azavwm mjpavjuhw lsgshn trqd xldlpy ogyavjvv agmckuiu ryvwwhlbc jk jk"
+  "tmt jk zk zm azavwm ofm acpgim bvgimjik iasrqgqv wuvajhwqz"
+  "igju ogyavjvv xrbdak rrkx fibokdry zf ujfhmrllq jk zm hxgwvib"
+  "zm pahlds jk uenvbm aayxpmve iaf hmjf xph vnlyvtkgx zm"
+  "jk xnxhf igju jk xh jk nvfasfh zm js jk"
+  "zm zm rwaj igju xr rrkx xnxhf nvfasfh skxbsqzvmt xatbxeqq"
+  "vgsld zm ujfhmrllq uhzq ogyavjvv nsab azavwm zm vgsld jmfiqhwnjg"
+  "ymjoym duszemmzl urvysbnykk azavwm jk jmfiqhwnjg bu qcdziqomqk vnlyvtkgx"
+  "zm nbilqcnz dzadnqzprr xh bkfgzsxn urvysbnykk xrujfzxqf zm zf agmckuiu"
+  "jk urvysbnykk nvfasfh zf xh zm zm qcdziqomqk qvxtclg wdmy"
+  "fibokdry jk urvysbnykk jk xr osff zm cvnnsl zm vgsld"
+  "jk mjpavjuhw hkfoudzftq jk zm xh xqf urvysbnykk jk iasrqgqv"
+  "jk csjqxhgj duszemmzl iasrqgqv aayxpmve zm brsuoqww jk qpmhtvl wluvgsw"
+  "jk mj azavwm jk zm jn dzadnqzprr zm jk uhzq"
+  "zk xqf jupk fxw nbilqcnz zm jk jcpiwj tznlvbfcv nvfasfh"
+  "jk jcpiwj zm xnxhf zm mjpavjuhw mj drir pa pvjrjlas"
+  "duszemmzl dzadnqzprr jk swc duszemmzl tmt jk jk pahlds jk"
+  "zk zm jk zm zm eczkjblu zm hi pmrb jk"
+  "azavwm zm iz agmckuiu jk sntk jk duszemmzl duszemmzl zm"
+  "jk zm jk eczkjblu urvysbnykk sk gnl jk ttvgf hmjf"
+  "jk bnhc jjrxpjkb mjpavjuhw fibokdry igju jk zm zm xh"
+  "wxe ogttbykvt uhzq xr iaf zf urvysbnykk aayxpmve oacaxgjoo mjpavjuhw"
+  "gazrt jk ephknonq myjp uenvbm wuvajhwqz jk zm xnxhf nvfasfh"
+  "zm aayxpmve csjqxhgj xnxhf xr jk aayxpmve xnxhf zm zm"
+  "sokcyf zm ogyavjvv jk zm fibokdry zm jk igju igju"
+  "vgsld bvgimjik xuprtlyle jk akmikrqyt jk aayxpmve hkfoudzftq ddjj ithtir"
+  "zm uhzq ovkyevlgv zk uenvbm csjqxhgj jk vgsld pgybs jk"
+  "zm agmckuiu zexh fibokdry jk uhzq bu tugflixoex xnxhf sk"
+  "zm zf uenvbm jk azavwm zm zm agmckuiu zm jk"
+  "rrkx jk zf jt zm oacaxgjoo fibokdry wdmy igju csjqxhgj"
+  "hi igju zm jk zidhxhbtv dzadnqzprr jk jk trqd duszemmzl"
+  "zm zm mjpavjuhw xrbdak qrvbjruc jk qzzqdxq guwq cvnnsl zm"
+  "ithtir jk jk qcdziqomqk zm farlehdhq zm zm xrbdak jk"
+  "ixfipk csjqxhgj azavwm sokcyf ttvgf vgsld jk sk xh zk"
+  "nvfasfh azavwm zm zm zm fxw nvfasfh zk gnl trqd"
+  "zm fibokdry csjqxhgj ofm dzadnqzprr jk akmikrqyt orpfawpx duszemmzl vwq"
+  "csjqxhgj jk jk vgsld urvysbnykk jk nxum jk jk nxum"
+  "zm hkfoudzftq jk ryvwwhlbc mjpavjuhw ephknonq jk zm ogyavjvv zm"
+  "lwa hi xnxhf qdyerbws zk njtc jk uhzq zm jk"
+  "trqd zm dzadnqzprr zm urvysbnykk jk lsz jk mjpavjuhw cmnnkna"
+  "duszemmzl zk jk jk fibokdry jseuhjnzo zm aayxpmve zk jk"
+  "fibokdry jk sviq qvxtclg wdmy jk doiwavhwwo zexh jk zm"
+  "jupk zm xh jk mjpavjuhw zm jk nsab npywgdvgz duszemmzl"
+  "zm igju zm zm nvfasfh eh hkfoudzftq fibokdry fxw xkblf"
+  "jk zm jk jk zm xh zk abthnzcv zf csjqxhgj"
+  "zm zm jk nkaotm urvysbnykk sbptoa bq jk ktxdty ubwrfqnbjf"
+  "nvfasfh aayxpmve xdcuz zm tugflixoex jcpiwj zm mjpavjuhw fibokdry doiwavhwwo"
+  "iaf jk mjpavjuhw zm duszemmzl jk jk uhzq pahlds fibokdry"
+  "ddjj zk azavwm jk swc zm gjtexkv jk xh jk"
+  "igju jk csjqxhgj zm jk dzadnqzprr duszemmzl ulvcbv jk jk"
+  "jk fibokdry zm csjqxhgj jn zm zm zm zf uhzq"
+  "duszemmzl jk xkblf zk hrlipdm aayxpmve uenvbm uhzq jk zf"
+  "dzadnqzprr jk zm zdu nvfasfh zm jk urvysbnykk hmjf jk"
+  "jk aayxpmve aserrdxm acpgim fibokdry jk drir wxe brsuoqww rrkx"
+  "uhzq csjqxhgj nvfasfh jk rrkx qbamok trqd uenvbm sntk zm"
+  "ps azavwm zkhdvkw jk zm jk jk zm csjqxhgj xedlrcfo"
+  "jk jk ogyavjvv jk zm farlehdhq duszemmzl jk agitgxamxe jk"
+  "qzzqdxq rwaj jk jk zm xqf jk uenvbm jk zk"
+  "zm hxgwvib akmikrqyt zf agmckuiu uenvbm bq npywgdvgz azavwm jk"
+  "zf jmfiqhwnjg js igju zm aayxpmve zm mbxnljomiv csjqxhgj nvfasfh"
+  "zm jk jk gazrt jk jk lkc jk nvfasfh jk"
+  "xldlpy orpfawpx zkhdvkw jk zm igju zm urvysbnykk dzadnqzprr mbxnljomiv"
+  "urvysbnykk jk zk igju zm uenvbm jk zm ithtir jk"
+  "zm zk zm zf ofm zm xdcuz dzadnqzprr zm vgsld"
+  "sbptoa jk tugflixoex jk zm zm vgsld zm xh zm"
+  "uhzq jk zk evvivo vgsld vniqnuynvf agmckuiu jk zm zm"
+  "zm nvfasfh zm zm zm abthnzcv uenvbm jk zk dzadnqzprr"
+  "zm azavwm igju qzzqdxq jk xnxhf abthnzcv jk nvfasfh zm"
+  "qbamok fxw vgsld igju cmnnkna xnxhf vniqnuynvf zk xh zm"
+  "nvfasfh zk zm mjpavjuhw dzadnqzprr jk jk duszemmzl xldlpy nvfasfh"
+  "xnxhf sviq nsab npywgdvgz osff vgsld farlehdhq fibokdry wjbkhzsa hhac"
+  "zm azavwm scpgna jk jk bq jk duszemmzl fibokdry ovkyevlgv"
+  "csjqxhgj zm jk jk duszemmzl zk xh zm jk zf"
+  "urvysbnykk dzadnqzprr csjqxhgj mjpavjuhw ubwrfqnbjf nkaotm jk jk zm drir"
+  "nvfasfh xh igju zm wluvgsw jk zm srwwnezqk ewle ovnq"
+  "jk nvfasfh eh ktxdty urvysbnykk vgsld zm jk eh uenvbm"
+  "orpfawpx pahlds jk uhzq hi zm zm zf jk dzadnqzprr"
+  "srwwnezqk csjqxhgj rbwzuf nvfasfh jcpiwj xldlpy nvfasfh jk vgsld wjybxmieki"
+}
+
+proc add_empty_records {n} {
+  execsql BEGIN
+  for {set i 0} {$i < $n} {incr i} {
+    execsql { INSERT INTO t1 VALUES('') }
+  }
+  execsql COMMIT
+}
+
+
+#set e [list]
+#foreach d $data {set e [concat $e $d]}
+#puts [lsort -unique $e]
+#exit
+
+set zero_long_doclists {
+  UPDATE t1_segments SET block=zeroblob(length(block)) WHERE length(block)>10000
+}
+
+foreach {tn setup} {
+  1 {
+    set dmt_modes 0
+    execsql { CREATE VIRTUAL TABLE t1 USING FTS3 }
+    foreach doc $data { execsql { INSERT INTO t1 VALUES($doc) } }
+  }
+  2 {
+    set dmt_modes 0
+    execsql { CREATE VIRTUAL TABLE t1 USING FTS4 }
+    foreach doc $data { execsql { INSERT INTO t1 VALUES($doc) } }
+  }
+  3 {
+    set dmt_modes {0 1 2}
+    execsql { CREATE VIRTUAL TABLE t1 USING FTS4 }
+    foreach doc $data { execsql { INSERT INTO t1 VALUES($doc) } }
+    add_empty_records 1000
+    sqlite3_db_config db DEFENSIVE 0
+    execsql $zero_long_doclists
+  }
+  4 {
+    set dmt_modes 0
+    execsql { CREATE VIRTUAL TABLE t1 USING FTS4 }
+    foreach doc $data { execsql { INSERT INTO t1 VALUES($doc) } }
+    add_empty_records 1000
+    execsql "INSERT INTO t1(t1) VALUES('optimize')"
+    sqlite3_db_config db DEFENSIVE 0
+    execsql $zero_long_doclists
+  }
+  5 {
+    set dmt_modes 0
+    execsql { CREATE VIRTUAL TABLE t1 USING FTS4(matchinfo=fts3) }
+    foreach doc $data { execsql { INSERT INTO t1 VALUES($doc) } }
+    add_empty_records 1000
+    sqlite3_db_config db DEFENSIVE 0
+    execsql $zero_long_doclists
+  }
+} {
+
+  execsql { DROP TABLE IF EXISTS t1 }
+  eval $setup
+  set ::testprefix fts3defer-2.$tn
+  set DO_MALLOC_TEST 0
+
+  do_execsql_test 0 { 
+    SELECT count(*) FROM t1_segments WHERE length(block)>10000 
+  } {2}
+
+  do_select_test 1.1 {
+    SELECT rowid FROM t1 WHERE t1 MATCH 'jk xnxhf'
+  } {13 29 40 47 48 52 63 92}
+  do_select_test 1.2 {
+    SELECT rowid FROM t1 WHERE t1 MATCH 'jk eh'
+  } {100}
+  do_select_test 1.3 {
+    SELECT rowid FROM t1 WHERE t1 MATCH 'jk ubwrfqnbjf'
+  } {7 70 98}
+  do_select_test 1.4 {
+    SELECT rowid FROM t1 WHERE t1 MATCH 'duszemmzl jk'
+  } {3 5 8 10 13 18 20 23 32 37 41 43 55 60 65 67 72 74 76 81 94 96 97}
+  do_select_test 1.5 {
+    SELECT rowid FROM t1 WHERE t1 MATCH 'ubwrfqnbjf jk'
+  } {7 70 98}
+  do_select_test 1.6 {
+    SELECT rowid FROM t1 WHERE t1 MATCH 'jk ubwrfqnbjf jk jk jk jk'
+  } {7 70 98}
+  do_select_test 1.7 {
+    SELECT rowid FROM t1 WHERE t1 MATCH 'zm xnxhf'
+  } {12 13 29 30 40 47 48 52 63 92 93}
+  do_select_test 1.8 {
+    SELECT rowid FROM t1 WHERE t1 MATCH 'zm eh'
+  } {68 100}
+  do_select_test 1.9 {
+    SELECT rowid FROM t1 WHERE t1 MATCH 'zm ubwrfqnbjf'
+  } {7 70 98}
+  do_select_test 1.10 {
+    SELECT rowid FROM t1 WHERE t1 MATCH 'z* vgsld'
+  } {10 13 17 31 35 51 58 88 89 90 93 100}
+
+  if { $fts3_simple_deferred_tokens_only==0 } {
+    do_select_test 1.11 {
+      SELECT rowid FROM t1 
+      WHERE t1 MATCH '(
+        zdu OR zexh OR zf OR zhbrzadb OR zidhxhbtv OR 
+        zk OR zkhdvkw OR zm OR zsmhnf
+      ) vgsld'
+    } {10 13 17 31 35 51 58 88 89 90 93 100}
+  }
+
+  do_select_test 2.1 {
+    SELECT rowid FROM t1 WHERE t1 MATCH '"zm agmckuiu"'
+  } {3 24 52 53}
+  do_select_test 2.2 {
+    SELECT rowid FROM t1 WHERE t1 MATCH '"zm zf"'
+  } {33 53 75 88 101}
+  do_select_test 2.3 {
+    SELECT rowid FROM t1 WHERE t1 MATCH '"zm aayxpmve"'
+  } {48 65 84}
+  do_select_test 2.4 {
+    SELECT rowid FROM t1 WHERE t1 MATCH '"aayxpmve zm"'
+  } {11 37 84}
+  do_select_test 2.5 {
+    SELECT rowid FROM t1 WHERE t1 MATCH '"jk azavwm"'
+  } {16 53}
+  do_select_test 2.6 {
+    SELECT rowid FROM t1 WHERE t1 MATCH '"xh jk jk"'
+  } {18}
+  do_select_test 2.7 {
+    SELECT rowid FROM t1 WHERE t1 MATCH '"zm jk vgsld"'
+  } {13 17}
+  do_select_test 2.8 {
+    SELECT rowid FROM t1 WHERE t1 MATCH '"zm jk vgsld lkjlkjlkj"'
+  } {}
+
+  do_select_test 3.1 {
+    SELECT snippet(t1, '[', ']') FROM t1 WHERE t1 MATCH '"zm agmckuiu"'
+  } {
+    {zm [zm] [agmckuiu] uhzq nsab jk rrkx duszemmzl hyq jk} 
+    {jk [zm] [agmckuiu] urvysbnykk jk jk zm zm jk jk} 
+    {[zm] [agmckuiu] zexh fibokdry jk uhzq bu tugflixoex xnxhf sk} 
+    {zm zf uenvbm jk azavwm zm [zm] [agmckuiu] zm jk}
+  }
+
+  do_select_test 3.2 {
+    SELECT snippet(t1, '[', ']') FROM t1 WHERE t1 MATCH 'xnxhf jk'
+  } {
+    {[xnxhf] [jk] [jk] agmckuiu duszemmzl [jk] zm zm [jk] vgsld} 
+    {[jk] [xnxhf] igju [jk] xh [jk] nvfasfh zm js [jk]} 
+    {[jk] jcpiwj zm [xnxhf] zm mjpavjuhw mj drir pa pvjrjlas} 
+    {gazrt [jk] ephknonq myjp uenvbm wuvajhwqz [jk] zm [xnxhf] nvfasfh} 
+    {zm aayxpmve csjqxhgj [xnxhf] xr [jk] aayxpmve [xnxhf] zm zm} 
+    {zm agmckuiu zexh fibokdry [jk] uhzq bu tugflixoex [xnxhf] sk} 
+    {lwa hi [xnxhf] qdyerbws zk njtc [jk] uhzq zm [jk]} 
+    {zm azavwm igju qzzqdxq [jk] [xnxhf] abthnzcv [jk] nvfasfh zm}
+  }
+
+  do_select_test 4.1 {
+    SELECT offsets(t1) FROM t1 WHERE t1 MATCH '"jk uenvbm"'
+  } {
+    {0 0 10 2 0 1 13 6} {0 0 26 2 0 1 29 6}
+  }
+
+  do_select_test 4.2 {
+    SELECT offsets(t1) FROM t1 WHERE t1 MATCH 'duszemmzl jk fibokdry'
+  } {
+    {0 2 3 8 0 1 36 2 0 0 58 9} 
+    {0 0 0 9 0 1 13 2 0 1 16 2 0 2 19 8 0 1 53 2} 
+    {0 1 4 2 0 0 20 9 0 1 30 2 0 1 33 2 0 2 48 8} 
+    {0 1 17 2 0 1 20 2 0 1 26 2 0 0 29 9 0 2 39 8}
+  }
+
+  do_select_test 4.3 {
+    SELECT offsets(t1) FROM t1 
+    WHERE t1 MATCH 'vgsld (hrlipdm OR (aapmve NEAR duszemmzl))'
+  } {{0 0 0 5 0 1 15 7 0 0 36 5}}
+
+  # The following block of tests runs normally with FTS3 or FTS4 without the
+  # long doclists zeroed. And with OOM-injection for FTS4 with long doclists
+  # zeroed. Change this by messing with the [set dmt_modes] commands above.
+  #
+  foreach DO_MALLOC_TEST $dmt_modes {
+    
+    # Phrase search.
+    #
+    do_select_test 5.$DO_MALLOC_TEST.1 {
+      SELECT rowid FROM t1 WHERE t1 MATCH '"jk mjpavjuhw"'
+    } {8 15 36 64 67 72}
+
+    # Multiple tokens search.
+    do_select_test 5.$DO_MALLOC_TEST.2 {
+      SELECT rowid FROM t1 WHERE t1 MATCH 'duszemmzl zm'
+    } {3 5 8 10 12 13 18 20 23 37 43 55 60 65 67 72 74 81 94 96 97}
+
+    # snippet() function with phrase.
+    do_select_test 5.$DO_MALLOC_TEST.3 {
+      SELECT snippet(t1, '[', ']') FROM t1 WHERE t1 MATCH '"zm aayxpmve"'
+    } {
+      {[zm] [aayxpmve] csjqxhgj xnxhf xr jk aayxpmve xnxhf zm zm} 
+      {duszemmzl zk jk jk fibokdry jseuhjnzo [zm] [aayxpmve] zk jk} 
+      {zf jmfiqhwnjg js igju [zm] [aayxpmve] zm mbxnljomiv csjqxhgj nvfasfh}
+    }
+    
+    # snippet() function with multiple tokens.
+    do_select_test 5.$DO_MALLOC_TEST.4 {
+      SELECT snippet(t1, '[', ']') FROM t1 WHERE t1 MATCH 'zm zhbrzadb'
+    } {
+      {[zm] jk [zm] [zm] [zhbrzadb] uenvbm aayxpmve urvysbnykk duszemmzl jk}
+    }
+    
+    # snippet() function with phrase.
+    do_select_test 5.$DO_MALLOC_TEST.5 {
+      SELECT offsets(t1) FROM t1 WHERE t1 MATCH '"zm aayxpmve"'
+    } {
+      {0 0 0 2 0 1 3 8} {0 0 38 2 0 1 41 8} {0 0 22 2 0 1 25 8}
+    }
+    
+    # snippet() function with multiple tokens.
+    do_select_test 5.$DO_MALLOC_TEST.6 {
+      SELECT offsets(t1) FROM t1 WHERE t1 MATCH 'zm zhbrzadb'
+    } {
+      {0 0 0 2 0 0 6 2 0 0 9 2 0 1 12 8}
+    }
+
+    set DO_MALLOC_TEST 0
+  }
+
+  do_select_test 6.1 {
+    SELECT rowid FROM t1 
+    WHERE t1 MATCH 'vgsld (hrlipdm OR (aayxpmve duszemmzl))'
+  } {10}
+  do_select_test 6.2.1 {
+    SELECT rowid FROM t1 WHERE t1 MATCH '"jk xduvfhk"'
+  } {8}
+  do_select_test 6.2.2 {
+    SELECT rowid FROM t1 WHERE t1 MATCH '"zm azavwm"'
+  } {15 26 92 96}
+  if {$fts3_simple_deferred_tokens_only==0} {
+    do_select_test 6.2.3 {
+      SELECT rowid FROM t1 WHERE t1 MATCH '"jk xduvfhk" OR "zm azavwm"'
+    } {8 15 26 92 96}
+  }
+
+  if {$tn>1} {
+    # These tests will not work with $tn==1, as in this case table t1 is
+    # created using FTS3. The ^ syntax is only available with FTS4 tables.
+    #
+    do_select_test 7.1 {
+      SELECT rowid FROM t1 WHERE t1 MATCH '^zm mjpavjuhw'
+    } {56 62}
+    do_select_test 7.2 {
+      SELECT rowid FROM t1 WHERE t1 MATCH '^azavwm zm'
+    } {43}
+  }
+}
+
+set testprefix fts3defer
+
+do_execsql_test 3.1 {
+  CREATE VIRTUAL TABLE x1 USING fts4(a, b);
+  INSERT INTO x1 VALUES('a b c', 'd e f');
+  INSERT INTO x1 SELECT * FROM x1;
+  INSERT INTO x1 SELECT * FROM x1;
+  INSERT INTO x1 SELECT * FROM x1;
+  INSERT INTO x1 SELECT * FROM x1;
+}
+do_execsql_test 3.2 "
+  INSERT INTO x1 VALUES(
+    '[string repeat {d } 3000]', '[string repeat {f } 30000]'
+  );
+  INSERT INTO x1(x1) VALUES('optimize');
+"
+
+do_execsql_test 3.3 {
+  SELECT count(*) FROM x1 WHERE x1 MATCH '"d e f"'
+} {16}
+
+# At one point the following was causing a floating-point exception.
+#
+do_execsql_test 4.1 {
+  CREATE VIRTUAL TABLE x2 USING FTS4(x);
+  BEGIN;
+  INSERT INTO x2 VALUES('m m m m m m m m m m m m m m m m m m m m m m m m m m');
+  INSERT INTO x2 SELECT * FROM x2;
+  INSERT INTO x2 SELECT * FROM x2;
+  INSERT INTO x2 SELECT * FROM x2;
+  INSERT INTO x2 SELECT * FROM x2;
+  INSERT INTO x2 SELECT * FROM x2;
+  INSERT INTO x2 SELECT * FROM x2;
+  INSERT INTO x2 SELECT * FROM x2;
+  INSERT INTO x2 SELECT * FROM x2;
+  INSERT INTO x2 SELECT * FROM x2;
+  INSERT INTO x2 SELECT * FROM x2;
+  INSERT INTO x2 SELECT * FROM x2;
+  INSERT INTO x2 SELECT * FROM x2;
+  INSERT INTO x2 SELECT * FROM x2;
+  INSERT INTO x2 SELECT * FROM x2;
+  INSERT INTO x2 SELECT * FROM x2;
+  INSERT INTO x2 VALUES('a b c d e f g h i j k l m n o p q r s t u v w x y m');
+  COMMIT;
+}
+do_execsql_test 4.2 {
+  SELECT * FROM x2 WHERE x2 MATCH 'a b c d e f g h i j k l m n o p q r s';
+} {{a b c d e f g h i j k l m n o p q r s t u v w x y m}}
+
+set tokenizers {1 simple}
+ifcapable icu { lappend tokenizers 2 {icu en_US} }
+foreach {tn tokenizer} $tokenizers {
+  do_execsql_test 5.$tn.1 "
+    CREATE VIRTUAL TABLE x3 USING FTS4(a, b, TOKENIZE $tokenizer)
+  "
+  do_execsql_test 5.$tn.2 {
+    BEGIN;
+    INSERT INTO x3 VALUES('b b b b b b b b b b b', 'b b b b b b b b b b b b b');
+    INSERT INTO x3 SELECT * FROM x3;
+    INSERT INTO x3 SELECT * FROM x3;
+    INSERT INTO x3 SELECT * FROM x3;
+    INSERT INTO x3 SELECT * FROM x3;
+    INSERT INTO x3 SELECT * FROM x3;
+    INSERT INTO x3 SELECT * FROM x3;
+    INSERT INTO x3 SELECT * FROM x3;
+    INSERT INTO x3 SELECT * FROM x3;
+    INSERT INTO x3 SELECT * FROM x3;
+    INSERT INTO x3 SELECT * FROM x3;
+    INSERT INTO x3 SELECT * FROM x3;
+    INSERT INTO x3 SELECT * FROM x3;
+    INSERT INTO x3 SELECT * FROM x3;
+    INSERT INTO x3 SELECT * FROM x3;
+    INSERT INTO x3 SELECT * FROM x3;
+    INSERT INTO x3 SELECT * FROM x3;
+    INSERT INTO x3 VALUES('a b c', NULL);
+    INSERT INTO x3 VALUES('a x c', NULL);
+    COMMIT;
+
+    SELECT * FROM x3 WHERE x3 MATCH 'a b';
+  } {{a b c} {}}
+
+  do_execsql_test 5.$tn.3 { DROP TABLE x3 }
+}
+
+finish_test
diff --git a/test/fts3defer2.test b/test/fts3defer2.test
new file mode 100644
index 0000000000000000000000000000000000000000..51d2afc49fd63ed4db916af2493193f02f880a7e
--- /dev/null
+++ b/test/fts3defer2.test
@@ -0,0 +1,193 @@
+# 2010 October 23
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+ifcapable !fts3||!fts4_deferred {
+  finish_test 
+  return
+}
+
+set testprefix fts3defer2
+
+proc mit {blob} {
+  set scan(littleEndian) i*
+  set scan(bigEndian) I*
+  binary scan $blob $scan($::tcl_platform(byteOrder)) r
+  return $r
+}
+db func mit mit
+
+#-----------------------------------------------------------------------------
+# This block of tests - fts3defer2-1.* - test the interaction of deferred NEAR
+# expressions and the snippet, offsets and matchinfo functions.
+# 
+do_execsql_test 1.1.1 {
+  CREATE VIRTUAL TABLE t1 USING fts4;
+}
+do_execsql_test 1.1.2 "INSERT INTO t1 VALUES('[string repeat {a } 20000]')"
+do_execsql_test 1.1.3 "INSERT INTO t1 VALUES('[string repeat {z } 20000]')"
+do_execsql_test 1.1.4 {
+  INSERT INTO t1 VALUES('a b c d e f a x y');
+  INSERT INTO t1 VALUES('');
+  INSERT INTO t1 VALUES('');
+  INSERT INTO t1 VALUES('');
+  INSERT INTO t1 VALUES('');
+  INSERT INTO t1 VALUES('');
+  INSERT INTO t1(t1) VALUES('optimize');
+}
+sqlite3_db_config db DEFENSIVE 0
+do_execsql_test 1.1.4 {
+  SELECT count(*) FROM t1_segments WHERE length(block)>10000;
+  UPDATE t1_segments SET block = zeroblob(length(block)) WHERE length(block)>10000;
+} {2}
+
+do_execsql_test 1.2.0 {
+  SELECT content FROM t1 WHERE t1 MATCH 'f (e a)';
+} {{a b c d e f a x y}}
+
+do_execsql_test 1.2.1 {
+  SELECT content FROM t1 WHERE t1 MATCH 'f (e NEAR/2 a)';
+} {{a b c d e f a x y}}
+
+
+do_execsql_test 1.2.2 {
+  SELECT snippet(t1, '[', ']'), offsets(t1), mit(matchinfo(t1, 'pcxnal'))
+  FROM t1 WHERE t1 MATCH 'f (e NEAR/2 a)';
+} [list                              \
+   {a b c d [e] [f] [a] x y}         \
+   {0 1 8 1 0 0 10 1 0 2 12 1}       \
+   [list 3 1   1 1 1   1 1 1   1 1 1   8 5001 9]
+]
+
+do_execsql_test 1.2.3 {
+  SELECT snippet(t1, '[', ']'), offsets(t1), mit(matchinfo(t1, 'pcxnal'))
+  FROM t1 WHERE t1 MATCH 'f (e NEAR/3 a)';
+} [list                                 \
+   {[a] b c d [e] [f] [a] x y}          \
+   {0 2 0 1 0 1 8 1 0 0 10 1 0 2 12 1}  \
+   [list 3 1   1 1 1   1 1 1   2 2 1   8 5001 9]
+]
+
+do_execsql_test 1.3.1 { DROP TABLE t1 }
+
+#-----------------------------------------------------------------------------
+# Test cases fts3defer2-2.* focus specifically on the matchinfo function.
+# 
+do_execsql_test 2.1.1 "CREATE VIRTUAL TABLE t2 USING fts4"
+do_execsql_test 2.1.2 "INSERT INTO t2 VALUES('[string repeat {a } 10000]')"
+do_execsql_test 2.1.3 "INSERT INTO t2 VALUES('b [string repeat {z } 10000]')"
+do_execsql_test 2.1.4 [string repeat "INSERT INTO t2 VALUES('x');" 50]
+do_execsql_test 2.1.5 {
+  INSERT INTO t2 VALUES('a b c d e f g z');
+  INSERT INTO t2 VALUES('a b c d e f g');
+}
+foreach {tn sql} {
+  1 {}
+  2 { INSERT INTO t2(t2) VALUES('optimize') }
+  3 { UPDATE t2_segments SET block = zeroblob(length(block)) 
+      WHERE length(block)>10000;
+  }
+} {
+  sqlite3_db_config db DEFENSIVE 0
+  execsql $sql
+
+  do_execsql_test 2.2.$tn.1 {
+    SELECT mit(matchinfo(t2, 'pcxnal')) FROM t2 WHERE t2 MATCH 'a b';
+  } [list                                          \
+    [list 2 1  1 54 54  1 3 3  54 372 8]        \
+    [list 2 1  1 54 54  1 3 3  54 372 7]        \
+  ]
+
+  do_execsql_test 2.2.$tn.2 {
+    SELECT mit(matchinfo(t2, 'x')) FROM t2 WHERE t2 MATCH 'g z';
+  } [list                                       \
+    [list 1 2 2  1 54 54]                       \
+  ]
+
+  set sqlite_fts3_enable_parentheses 1
+  do_execsql_test 2.2.$tn.3 {
+    SELECT mit(matchinfo(t2, 'x')) FROM t2 WHERE t2 MATCH 'g OR (g z)';
+  } [list                                       \
+    [list 1 2 2  1 2 2   1 54 54]               \
+    [list 1 2 2  1 2 2   0 54 54]               \
+  ]
+  set sqlite_fts3_enable_parentheses 0
+
+  do_execsql_test 2.2.$tn.4 {
+    SELECT mit(matchinfo(t2, 'x')) FROM t2 WHERE t2 MATCH 'e "g z"';
+  } [list                                       \
+    [list 1 2 2  1 2 2]                         \
+  ]
+}
+
+do_execsql_test 2.3.1 {
+  CREATE VIRTUAL TABLE t3 USING fts4;
+  INSERT INTO t3 VALUES('a b c d e f');
+  INSERT INTO t3 VALUES('x b c d e f');
+  INSERT INTO t3 VALUES('d e f a b c');
+  INSERT INTO t3 VALUES('b c d e f');
+  INSERT INTO t3 VALUES('');
+  INSERT INTO t3 VALUES('');
+  INSERT INTO t3 VALUES('');
+  INSERT INTO t3 VALUES('');
+  INSERT INTO t3 VALUES('');
+  INSERT INTO t3 VALUES('');
+}
+do_execsql_test 2.3.2 "
+  INSERT INTO t3 VALUES('f e d c b [string repeat {a } 10000]')
+"
+foreach {tn sql} {
+  1 {}
+  2 { INSERT INTO t3(t3) VALUES('optimize') }
+  3 { UPDATE t3_segments SET block = zeroblob(length(block)) 
+      WHERE length(block)>10000;
+  }
+} {
+  sqlite3_db_config db DEFENSIVE 0
+  execsql $sql
+  do_execsql_test 2.4.$tn {
+    SELECT docid, mit(matchinfo(t3, 'pcxnal')) FROM t3 WHERE t3 MATCH '"a b c"';
+  } {1 {1 1 1 4 4 11 912 6} 3 {1 1 1 4 4 11 912 6}}
+}
+
+do_execsql_test 2.5 {
+  INSERT INTO t3(t3) VALUES('rebuild');
+}
+do_execsql_test 2.6 {
+  SELECT rowid, length(offsets(t3)) FROM t3 WHERE t3 MATCH '(a NEAR a)';
+} {11 228929}
+do_execsql_test 2.7 {
+  SELECT rowid, length(offsets(t3)) FROM t3 WHERE t3 MATCH '(a NEAR b NEAR a)';
+} {1 23 3 23 11 205}
+do_execsql_test 2.8 {
+  SELECT rowid, length(offsets(t3)) FROM t3 WHERE t3 MATCH '(a NEAR b)';
+} {1 15 3 15 11 106}
+
+do_execsql_test 2.9 {
+  SELECT rowid, length(matchinfo(t3)) FROM t3 WHERE t3 MATCH '(a NEAR a)';
+} {11 32}
+do_execsql_test 2.10 {
+  SELECT rowid, length(matchinfo(t3)) FROM t3 WHERE t3 MATCH '(a NEAR b NEAR a)'
+} {1 44 3 44 11 44}
+do_execsql_test 2.11 {
+  SELECT rowid, length(matchinfo(t3)) FROM t3 WHERE t3 MATCH '(a NEAR b)';
+} {1 32 3 32 11 32}
+
+do_execsql_test 2.12 {
+  SELECT rowid, length(matchinfo(t3)) FROM t3 
+  WHERE t3 MATCH '(a NEAR b NEAR a NEAR b NEAR a)'
+} {1 68 3 68 11 68}
+
+
+finish_test
diff --git a/test/fts3defer3.test b/test/fts3defer3.test
new file mode 100644
index 0000000000000000000000000000000000000000..a795e92bcf1ab8fcde102113258920c289a9e10c
--- /dev/null
+++ b/test/fts3defer3.test
@@ -0,0 +1,84 @@
+# 2010 October 23
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains a very simple test to show that the deferred tokens
+# optimization is doing something.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+ifcapable !fts3||!fts4_deferred {
+  finish_test 
+  return
+}
+set testprefix fts3defer3
+
+set nDoclist 3204
+set nDoc     800
+
+# Set up a database that contains 800 rows. Each row contains the document
+# "b b", except for the row with docid=200, which contains "a b". Hence
+# token "b" is extremely common and token "a" is not.
+#
+do_test 1.1 {
+  execsql {
+    CREATE VIRTUAL TABLE t1 USING fts4;
+      BEGIN;
+  }
+  for {set i 1} {$i <= $nDoc} {incr i} {
+    set document "b b"
+    if {$i==200} { set document "a b" }
+    execsql { INSERT INTO t1 (docid, content) VALUES($i, $document) }
+  }
+  execsql COMMIT
+} {}
+
+# Check that the db contains two doclists. A small one for "a" and a 
+# larger one for "b".
+#
+do_execsql_test 1.2 {
+  SELECT blockid, length(block) FROM t1_segments;
+} [list 1 8 2 $nDoclist]
+
+# Query for 'a b'. Although this test doesn't prove so, token "b" will 
+# be deferred because of the very large associated doclist.
+#
+do_execsql_test 1.3 {
+  SELECT docid, content FROM t1 WHERE t1 MATCH 'a b';
+} {200 {a b}}
+
+# Zero out the doclist for token "b" within the database file. Now the 
+# only queries that use token "b" that will work are those that defer
+# it. Any query that tries to use the doclist belonging to token "b"
+# will fail.
+#
+do_test 1.4 {
+  set fd [db incrblob t1_segments block 2]
+  puts -nonewline $fd [string repeat "\00" $nDoclist]
+  close $fd
+} {}
+
+# The first two queries succeed, as they defer token "b". The last one
+# fails, as it tries to load the corrupt doclist.
+#
+do_execsql_test 1.5 {
+  SELECT docid, content FROM t1 WHERE t1 MATCH 'a b';
+} {200 {a b}}
+do_execsql_test 1.6 {
+  SELECT count(*) FROM t1 WHERE t1 MATCH 'a b';
+} {1}
+do_catchsql_test 1.7 {
+  SELECT count(*) FROM t1 WHERE t1 MATCH 'b';
+} {1 {database disk image is malformed}}
+
+
+finish_test
diff --git a/test/fts3drop.test b/test/fts3drop.test
new file mode 100644
index 0000000000000000000000000000000000000000..8b76eafec01b2170e8817c8a5fb579ce0472f194
--- /dev/null
+++ b/test/fts3drop.test
@@ -0,0 +1,61 @@
+# 2011 October 29
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS3 module. More specifically,
+# that DROP TABLE commands can co-exist with savepoints inside transactions.
+# See ticket [48f299634a] for details.
+#
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix fts3drop
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+do_execsql_test 1.1 {
+  CREATE VIRTUAL TABLE f1 USING fts3;
+  INSERT INTO f1 VALUES('a b c');
+}
+
+do_execsql_test 1.2 {
+  BEGIN;
+    INSERT INTO f1 VALUES('d e f');
+    SAVEPOINT one;
+      INSERT INTO f1 VALUES('g h i');
+      DROP TABLE f1;
+    ROLLBACK TO one;
+  COMMIT;
+}
+
+do_execsql_test 1.3 {
+  SELECT * FROM f1;
+} {{a b c} {d e f}}
+
+do_execsql_test 1.4 {
+  BEGIN;
+    INSERT INTO f1 VALUES('g h i');
+    SAVEPOINT one;
+      INSERT INTO f1 VALUES('j k l');
+      DROP TABLE f1;
+    RELEASE one;
+  ROLLBACK;
+}
+
+do_execsql_test 1.5 {
+  SELECT * FROM f1;
+} {{a b c} {d e f}}
+
+finish_test
diff --git a/test/fts3dropmod.test b/test/fts3dropmod.test
new file mode 100644
index 0000000000000000000000000000000000000000..d6b1677ac2e12d57c228b80bf783662a52fac7a5
--- /dev/null
+++ b/test/fts3dropmod.test
@@ -0,0 +1,44 @@
+# 2021 December 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS3 module.
+#
+# $Id: fts3aa.test,v 1.1 2007/08/20 17:38:42 shess Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix fts3dropmod
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+sqlite3_drop_modules db fts3
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts3(x);
+} 
+do_catchsql_test 1.1 {
+  CREATE VIRTUAL TABLE t2 USING fts4(x);
+} {1 {no such module: fts4}}
+
+reset_db
+sqlite3_drop_modules db fts4
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE t1 USING fts4(x);
+} 
+do_catchsql_test 2.1 {
+  CREATE VIRTUAL TABLE t2 USING fts3(x);
+} {1 {no such module: fts3}}
+
+finish_test
diff --git a/test/fts3e.test b/test/fts3e.test
new file mode 100644
index 0000000000000000000000000000000000000000..03caaf85f23686db63c5aafa554c5ffbf73c69db
--- /dev/null
+++ b/test/fts3e.test
@@ -0,0 +1,125 @@
+# 2008 July 29
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# These tests exercise the various types of fts3 cursors.
+#
+# $Id: fts3e.test,v 1.1 2008/07/29 20:24:46 shess Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If SQLITE_ENABLE_FTS3 is not defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+#*************************************************************************
+# Test table scan (QUERY_GENERIC).  This kind of query happens for
+# queries with no WHERE clause, or for WHERE clauses which cannot be
+# satisfied by an index.
+db eval {
+  DROP TABLE IF EXISTS t1;
+  CREATE VIRTUAL TABLE t1 USING fts3(c);
+  INSERT INTO t1 (docid, c) VALUES (1, 'This is a test');
+  INSERT INTO t1 (docid, c) VALUES (2, 'That was a test');
+  INSERT INTO t1 (docid, c) VALUES (3, 'This is a test');
+}
+
+do_test fts3e-1.1 {
+  execsql {
+    SELECT docid FROM t1 ORDER BY docid;
+  }
+} {1 2 3}
+
+do_test fts3e-1.2 {
+  execsql {
+    SELECT docid FROM t1 WHERE c LIKE '%test' ORDER BY docid;
+  }
+} {1 2 3}
+
+do_test fts3e-1.3 {
+  execsql {
+    SELECT docid FROM t1 WHERE c LIKE 'That%' ORDER BY docid;
+  }
+} {2}
+
+#*************************************************************************
+# Test lookup by docid (QUERY_DOCID).  This kind of query happens for
+# queries which select by the docid/rowid implicit index.
+db eval {
+  DROP TABLE IF EXISTS t1;
+  DROP TABLE IF EXISTS t2;
+  CREATE VIRTUAL TABLE t1 USING fts3(c);
+  CREATE TABLE t2(id INTEGER PRIMARY KEY AUTOINCREMENT, weight INTEGER UNIQUE);
+  INSERT INTO t2 VALUES (null, 10);
+  INSERT INTO t1 (docid, c) VALUES (last_insert_rowid(), 'This is a test');
+  INSERT INTO t2 VALUES (null, 5);
+  INSERT INTO t1 (docid, c) VALUES (last_insert_rowid(), 'That was a test');
+  INSERT INTO t2 VALUES (null, 20);
+  INSERT INTO t1 (docid, c) VALUES (last_insert_rowid(), 'This is a test');
+}
+
+# TODO(shess): This actually is doing QUERY_GENERIC?  I'd have
+# expected QUERY_DOCID in this case, as for a very large table the
+# full scan is less efficient.
+do_test fts3e-2.1 {
+  execsql {
+    SELECT docid FROM t1 WHERE docid in (1, 2, 10);
+    SELECT rowid FROM t1 WHERE rowid in (1, 2, 10);
+  }
+} {1 2 1 2}
+
+do_test fts3e-2.2 {
+  execsql {
+    SELECT docid, weight FROM t1, t2 WHERE t2.id = t1.docid ORDER BY weight;
+    SELECT t1.rowid, weight FROM t1, t2 WHERE t2.id = t1.rowid ORDER BY weight;
+  }
+} {2 5 1 10 3 20 2 5 1 10 3 20}
+
+do_test fts3e-2.3 {
+  execsql {
+    SELECT docid, weight FROM t1, t2
+           WHERE t2.weight>5 AND t2.id = t1.docid ORDER BY weight;
+    SELECT t1.rowid, weight FROM t1, t2
+           WHERE t2.weight>5 AND t2.id = t1.rowid ORDER BY weight;
+  }
+} {1 10 3 20 1 10 3 20}
+
+#*************************************************************************
+# Test lookup by MATCH (QUERY_FULLTEXT).  This is the fulltext index.
+db eval {
+  DROP TABLE IF EXISTS t1;
+  DROP TABLE IF EXISTS t2;
+  CREATE VIRTUAL TABLE t1 USING fts3(c);
+  CREATE TABLE t2(id INTEGER PRIMARY KEY AUTOINCREMENT, weight INTEGER UNIQUE);
+  INSERT INTO t2 VALUES (null, 10);
+  INSERT INTO t1 (docid, c) VALUES (last_insert_rowid(), 'This is a test');
+  INSERT INTO t2 VALUES (null, 5);
+  INSERT INTO t1 (docid, c) VALUES (last_insert_rowid(), 'That was a test');
+  INSERT INTO t2 VALUES (null, 20);
+  INSERT INTO t1 (docid, c) VALUES (last_insert_rowid(), 'This is a test');
+}
+
+do_test fts3e-3.1 {
+  execsql {
+    SELECT docid FROM t1 WHERE t1 MATCH 'this' ORDER BY docid;
+  }
+} {1 3}
+
+do_test fts3e-3.2 {
+  execsql {
+    SELECT docid, weight FROM t1, t2
+     WHERE t1 MATCH 'this' AND t1.docid = t2.id ORDER BY weight;
+  }
+} {1 10 3 20}
+
+finish_test
diff --git a/test/fts3expr.test b/test/fts3expr.test
new file mode 100644
index 0000000000000000000000000000000000000000..2fd19201b62d6a66910b24798a2eff5b286dd3dc
--- /dev/null
+++ b/test/fts3expr.test
@@ -0,0 +1,521 @@
+# 2006 September 9
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS3 module.
+#
+# $Id: fts3expr.test,v 1.9 2009/07/28 16:44:26 danielk1977 Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+set sqlite_fts3_enable_parentheses 1
+
+proc test_fts3expr {expr} {
+  db one {SELECT fts3_exprtest('simple', $expr, 'a', 'b', 'c')}
+}
+
+do_test fts3expr-1.0 {
+  test_fts3expr "abcd"
+} {PHRASE 3 0 abcd}
+do_test fts3expr-1.1 {
+  test_fts3expr " tag "
+} {PHRASE 3 0 tag}
+
+do_test fts3expr-1.2 {
+  test_fts3expr "ab AND cd"
+} {AND {PHRASE 3 0 ab} {PHRASE 3 0 cd}}
+do_test fts3expr-1.2.1 {
+  test_fts3expr "ab cd"
+} {AND {PHRASE 3 0 ab} {PHRASE 3 0 cd}}
+do_test fts3expr-1.3 {
+  test_fts3expr "ab OR cd"
+} {OR {PHRASE 3 0 ab} {PHRASE 3 0 cd}}
+do_test fts3expr-1.4 {
+  test_fts3expr "ab NOT cd"
+} {NOT {PHRASE 3 0 ab} {PHRASE 3 0 cd}}
+do_test fts3expr-1.5 {
+  test_fts3expr "ab NEAR cd"
+} {NEAR/10 {PHRASE 3 0 ab} {PHRASE 3 0 cd}}
+do_test fts3expr-1.6.1 {
+  test_fts3expr "ab NEAR/5 cd"
+} {NEAR/5 {PHRASE 3 0 ab} {PHRASE 3 0 cd}}
+do_test fts3expr-1.6.2 {
+  test_fts3expr "ab NEAR/87654321 cd"
+} {NEAR/87654321 {PHRASE 3 0 ab} {PHRASE 3 0 cd}}
+do_test fts3expr-1.6.3 {
+  test_fts3expr "ab NEAR/7654321 cd"
+} {NEAR/7654321 {PHRASE 3 0 ab} {PHRASE 3 0 cd}}
+do_test fts3expr-1.6.4 {
+  test_fts3expr "ab NEAR/654321 cd"
+} {NEAR/654321 {PHRASE 3 0 ab} {PHRASE 3 0 cd}}
+do_test fts3expr-1.6.5 {
+  test_fts3expr "ab NEAR/54321 cd"
+} {NEAR/54321 {PHRASE 3 0 ab} {PHRASE 3 0 cd}}
+do_test fts3expr-1.6.6 {
+  test_fts3expr "ab NEAR/4321 cd"
+} {NEAR/4321 {PHRASE 3 0 ab} {PHRASE 3 0 cd}}
+do_test fts3expr-1.6.7 {
+  test_fts3expr "ab NEAR/321 cd"
+} {NEAR/321 {PHRASE 3 0 ab} {PHRASE 3 0 cd}}
+do_test fts3expr-1.6.8 {
+  test_fts3expr "ab NEAR/21 cd"
+} {NEAR/21 {PHRASE 3 0 ab} {PHRASE 3 0 cd}}
+
+do_test fts3expr-1.7 {
+  test_fts3expr {"one two three"}
+} {PHRASE 3 0 one two three}
+do_test fts3expr-1.8.1 {
+  test_fts3expr {zero "one two three" four}
+} {AND {AND {PHRASE 3 0 zero} {PHRASE 3 0 one two three}} {PHRASE 3 0 four}}
+do_test fts3expr-1.8.2 {
+  test_fts3expr {zero AND "one two three" four}
+} {AND {AND {PHRASE 3 0 zero} {PHRASE 3 0 one two three}} {PHRASE 3 0 four}}
+do_test fts3expr-1.8.3 {
+  test_fts3expr {zero "one two three" AND four}
+} {AND {AND {PHRASE 3 0 zero} {PHRASE 3 0 one two three}} {PHRASE 3 0 four}}
+do_test fts3expr-1.8.4 {
+  test_fts3expr {zero AND "one two three" AND four}
+} {AND {AND {PHRASE 3 0 zero} {PHRASE 3 0 one two three}} {PHRASE 3 0 four}}
+do_test fts3expr-1.9.1 {
+  test_fts3expr {"one* two three"}
+} {PHRASE 3 0 one+ two three}
+do_test fts3expr-1.9.2 {
+  test_fts3expr {"one two* three"}
+} {PHRASE 3 0 one two+ three}
+do_test fts3expr-1.9.3 {
+  test_fts3expr {"one* two* three"}
+} {PHRASE 3 0 one+ two+ three}
+do_test fts3expr-1.9.4 {
+  test_fts3expr {"one two three*"}
+} {PHRASE 3 0 one two three+}
+do_test fts3expr-1.9.5 {
+  test_fts3expr {"one* two three*"}
+} {PHRASE 3 0 one+ two three+}
+do_test fts3expr-1.9.6 {
+  test_fts3expr {"one two* three*"}
+} {PHRASE 3 0 one two+ three+}
+do_test fts3expr-1.9.7 {
+  test_fts3expr {"one* two* three*"}
+} {PHRASE 3 0 one+ two+ three+}
+
+do_test fts3expr-1.10 {
+  test_fts3expr {one* two}
+} {AND {PHRASE 3 0 one+} {PHRASE 3 0 two}}
+do_test fts3expr-1.11 {
+  test_fts3expr {one two*}
+} {AND {PHRASE 3 0 one} {PHRASE 3 0 two+}}
+
+do_test fts3expr-1.14 {
+  test_fts3expr {a:one two}
+} {AND {PHRASE 0 0 one} {PHRASE 3 0 two}}
+do_test fts3expr-1.15.1 {
+  test_fts3expr {one b:two}
+} {AND {PHRASE 3 0 one} {PHRASE 1 0 two}}
+do_test fts3expr-1.15.2 {
+  test_fts3expr {one B:two}
+} {AND {PHRASE 3 0 one} {PHRASE 1 0 two}}
+
+do_test fts3expr-1.16 {
+  test_fts3expr {one AND two AND three AND four AND five}
+} [list AND \
+        [list AND \
+              [list AND \
+                    [list AND {PHRASE 3 0 one} {PHRASE 3 0 two}] \
+                    {PHRASE 3 0 three} \
+              ] \
+              {PHRASE 3 0 four} \
+        ] \
+        {PHRASE 3 0 five} \
+  ]
+do_test fts3expr-1.17 {
+  test_fts3expr {(one AND two) AND ((three AND four) AND five)}
+} [list AND \
+        [list AND {PHRASE 3 0 one} {PHRASE 3 0 two}] \
+        [list AND \
+              [list AND {PHRASE 3 0 three} {PHRASE 3 0 four}] \
+             {PHRASE 3 0 five} \
+        ] \
+  ]
+do_test fts3expr-1.18 {
+  test_fts3expr {(one AND two) OR ((three AND four) AND five)}
+} [list OR \
+        [list AND {PHRASE 3 0 one} {PHRASE 3 0 two}] \
+        [list AND \
+              [list AND {PHRASE 3 0 three} {PHRASE 3 0 four}] \
+             {PHRASE 3 0 five} \
+        ] \
+  ]
+do_test fts3expr-1.19 {
+  test_fts3expr {(one AND two) AND ((three AND four) OR five)}
+} [list AND \
+        [list AND {PHRASE 3 0 one} {PHRASE 3 0 two}] \
+        [list OR \
+              [list AND {PHRASE 3 0 three} {PHRASE 3 0 four}] \
+             {PHRASE 3 0 five} \
+        ] \
+  ]
+do_test fts3expr-1.20 {
+  test_fts3expr {(one OR two) AND ((three OR four) AND five)}
+} [list AND \
+        [list OR {PHRASE 3 0 one} {PHRASE 3 0 two}] \
+        [list AND \
+              [list OR {PHRASE 3 0 three} {PHRASE 3 0 four}] \
+             {PHRASE 3 0 five} \
+        ] \
+  ]
+do_test fts3expr-1.21 {
+  test_fts3expr {(one OR two) AND ((three NOT four) AND five)}
+} [list AND \
+        [list OR {PHRASE 3 0 one} {PHRASE 3 0 two}] \
+        [list AND \
+              [list NOT {PHRASE 3 0 three} {PHRASE 3 0 four}] \
+             {PHRASE 3 0 five} \
+        ] \
+  ]
+do_test fts3expr-1.22 {
+  test_fts3expr {(one OR two) NOT ((three OR four) AND five)}
+} [list NOT \
+        [list OR {PHRASE 3 0 one} {PHRASE 3 0 two}] \
+        [list AND \
+              [list OR {PHRASE 3 0 three} {PHRASE 3 0 four}] \
+             {PHRASE 3 0 five} \
+        ] \
+  ]
+do_test fts3expr-1.23 {
+  test_fts3expr {(((((one OR two))))) NOT (((((three OR four))) AND five))}
+} [list NOT \
+        [list OR {PHRASE 3 0 one} {PHRASE 3 0 two}] \
+        [list AND \
+              [list OR {PHRASE 3 0 three} {PHRASE 3 0 four}] \
+             {PHRASE 3 0 five} \
+        ] \
+  ]
+do_test fts3expr-1.24 {
+  test_fts3expr {one NEAR two}
+} [list NEAR/10 {PHRASE 3 0 one} {PHRASE 3 0 two}]
+do_test fts3expr-1.25 {
+  test_fts3expr {(one NEAR two)}
+} [list NEAR/10 {PHRASE 3 0 one} {PHRASE 3 0 two}]
+do_test fts3expr-1.26 {
+  test_fts3expr {((((((one NEAR two))))))}
+} [list NEAR/10 {PHRASE 3 0 one} {PHRASE 3 0 two}]
+do_test fts3expr-1.27 {
+  test_fts3expr {(one NEAR two) OR ((three OR four) AND five)}
+} [list OR \
+        [list NEAR/10 {PHRASE 3 0 one} {PHRASE 3 0 two}] \
+        [list AND \
+              [list OR {PHRASE 3 0 three} {PHRASE 3 0 four}] \
+             {PHRASE 3 0 five} \
+        ] \
+  ]
+do_test fts3expr-1.28 {
+  test_fts3expr {(one NEAR/321 two) OR ((three OR four) AND five)}
+} [list OR \
+        [list NEAR/321 {PHRASE 3 0 one} {PHRASE 3 0 two}] \
+        [list AND \
+              [list OR {PHRASE 3 0 three} {PHRASE 3 0 four}] \
+             {PHRASE 3 0 five} \
+        ] \
+  ]
+
+proc strip_phrase_data {L} {
+  if {[lindex $L 0] eq "PHRASE"} {
+    return [lrange $L 3 end]
+  }
+  return [list \
+    [lindex $L 0] \
+    [strip_phrase_data [lindex $L 1]] \
+    [strip_phrase_data [lindex $L 2]] \
+  ]
+}
+proc test_fts3expr2 {expr} {
+  strip_phrase_data [
+    db one {SELECT fts3_exprtest('simple', $expr, 'a', 'b', 'c')}
+  ]
+}
+do_test fts3expr-2.1 {
+  test_fts3expr2 "ab OR cd AND ef"
+} {OR ab {AND cd ef}}
+do_test fts3expr-2.2 {
+  test_fts3expr2 "cd AND ef OR ab"
+} {OR {AND cd ef} ab}
+do_test fts3expr-2.3 {
+  test_fts3expr2 "ab AND cd AND ef OR gh"
+} {OR {AND {AND ab cd} ef} gh}
+do_test fts3expr-2.4 {
+  test_fts3expr2 "ab AND cd OR ef AND gh"
+} {OR {AND ab cd} {AND ef gh}}
+do_test fts3expr-2.5 {
+  test_fts3expr2 "ab cd"
+} {AND ab cd}
+
+do_test fts3expr-3.1 {
+  test_fts3expr2 "(ab OR cd) AND ef"
+} {AND {OR ab cd} ef}
+do_test fts3expr-3.2 {
+  test_fts3expr2 "ef AND (ab OR cd)"
+} {AND ef {OR ab cd}}
+do_test fts3expr-3.3 {
+  test_fts3expr2 "(ab OR cd)"
+} {OR ab cd}
+do_test fts3expr-3.4 {
+  test_fts3expr2 "(((ab OR cd)))"
+} {OR ab cd}
+
+do_test fts3expr-3.5 {
+  test_fts3expr2 "one AND (two NEAR three)"
+} {AND one {NEAR/10 two three}}
+do_test fts3expr-3.6 {
+  test_fts3expr2 "one (two NEAR three)"
+} {AND one {NEAR/10 two three}}
+do_test fts3expr-3.7 {
+  test_fts3expr2 "(two NEAR three) one"
+} {AND {NEAR/10 two three} one}
+do_test fts3expr-3.8 {
+  test_fts3expr2 "(two NEAR three) AND one"
+} {AND {NEAR/10 two three} one}
+do_test fts3expr-3.9 {
+  test_fts3expr2 "(two NEAR three) (four five)"
+} {AND {NEAR/10 two three} {AND four five}}
+do_test fts3expr-3.10 {
+  test_fts3expr2 "(two NEAR three) AND (four five)"
+} {AND {NEAR/10 two three} {AND four five}}
+do_test fts3expr-3.11 {
+  test_fts3expr2 "(two NEAR three) (four NEAR five)"
+} {AND {NEAR/10 two three} {NEAR/10 four five}}
+do_test fts3expr-3.12 {
+  test_fts3expr2 "(two NEAR three) OR (four NEAR five)"
+} {OR {NEAR/10 two three} {NEAR/10 four five}}
+
+do_test fts3expr-3.13 {
+  test_fts3expr2 "(two NEAR/1a three)"
+} {AND {AND {AND two near} 1a} three}
+
+do_test fts3expr-3.14 {
+  test_fts3expr2 "(two NEAR// three)"
+} {AND {AND two near} three}
+do_test fts3expr-3.15 {
+  test_fts3expr2 "(two NEAR/: three)"
+} {AND {AND two near} three}
+
+do_test fts3expr-3.16 {
+  test_fts3expr2 "(two NEAR three)OR(four NEAR five)"
+} {OR {NEAR/10 two three} {NEAR/10 four five}}
+do_test fts3expr-3.17 {
+  test_fts3expr2 "(two NEAR three)OR\"four five\""
+} {OR {NEAR/10 two three} {four five}}
+do_test fts3expr-3.18 {
+  test_fts3expr2 "one \u0080wo"
+} "AND one \u0080wo"
+
+
+
+#------------------------------------------------------------------------
+# The following tests, fts3expr-4.*, test the parsers response to syntax
+# errors in query expressions. This is done using a real fts3 table and
+# MATCH clauses, not the parser test interface.
+# 
+do_test fts3expr-4.1 {
+  execsql { CREATE VIRTUAL TABLE t1 USING fts3(a, b, c) }
+} {}
+
+# Mismatched parenthesis:
+do_test fts3expr-4.2.1 {
+  catchsql { SELECT * FROM t1 WHERE t1 MATCH 'example AND (hello OR world))' }
+} {1 {malformed MATCH expression: [example AND (hello OR world))]}}
+do_test fts3expr-4.2.2 {
+  catchsql { SELECT * FROM t1 WHERE t1 MATCH 'example AND (hello OR world' }
+} {1 {malformed MATCH expression: [example AND (hello OR world]}}
+do_test fts3expr-4.2.3 {
+  catchsql { SELECT * FROM t1 WHERE t1 MATCH '(hello' }
+} {1 {malformed MATCH expression: [(hello]}}
+do_test fts3expr-4.2.4 {
+  catchsql { SELECT * FROM t1 WHERE t1 MATCH '(' }
+} {1 {malformed MATCH expression: [(]}}
+do_test fts3expr-4.2.5 {
+  catchsql { SELECT * FROM t1 WHERE t1 MATCH ')' }
+} {1 {malformed MATCH expression: [)]}}
+
+do_test fts3expr-4.2.6 {
+  catchsql { SELECT * FROM t1 WHERE t1 MATCH 'example (hello world' }
+} {1 {malformed MATCH expression: [example (hello world]}}
+
+# Unterminated quotation marks:
+do_test fts3expr-4.3.1 {
+  catchsql { SELECT * FROM t1 WHERE t1 MATCH 'example OR "hello world' }
+} {1 {malformed MATCH expression: [example OR "hello world]}}
+do_test fts3expr-4.3.2 {
+  catchsql { SELECT * FROM t1 WHERE t1 MATCH 'example OR hello world"' }
+} {1 {malformed MATCH expression: [example OR hello world"]}}
+
+# Binary operators without the required operands.
+do_test fts3expr-4.4.1 {
+  catchsql { SELECT * FROM t1 WHERE t1 MATCH 'OR hello world' }
+} {1 {malformed MATCH expression: [OR hello world]}}
+do_test fts3expr-4.4.2 {
+  catchsql { SELECT * FROM t1 WHERE t1 MATCH 'hello world OR' }
+} {1 {malformed MATCH expression: [hello world OR]}}
+do_test fts3expr-4.4.3 {
+  catchsql { SELECT * FROM t1 WHERE t1 MATCH 'one (hello world OR) two' }
+} {1 {malformed MATCH expression: [one (hello world OR) two]}}
+do_test fts3expr-4.4.4 {
+  catchsql { SELECT * FROM t1 WHERE t1 MATCH 'one (OR hello world) two' }
+} {1 {malformed MATCH expression: [one (OR hello world) two]}}
+
+# NEAR operators with something other than phrases as arguments.
+do_test fts3expr-4.5.1 {
+  catchsql { SELECT * FROM t1 WHERE t1 MATCH '(hello OR world) NEAR one' }
+} {1 {malformed MATCH expression: [(hello OR world) NEAR one]}}
+do_test fts3expr-4.5.2 {
+  catchsql { SELECT * FROM t1 WHERE t1 MATCH 'one NEAR (hello OR world)' }
+} {1 {malformed MATCH expression: [one NEAR (hello OR world)]}}
+
+#------------------------------------------------------------------------
+# The following OOM tests are designed to cover cases in fts3_expr.c.
+# 
+source $testdir/malloc_common.tcl
+do_malloc_test fts3expr-malloc-1 -sqlbody {
+  SELECT fts3_exprtest('simple', 'a b c "d e f"', 'a', 'b', 'c')
+}
+do_malloc_test fts3expr-malloc-2 -tclprep {
+  set sqlite_fts3_enable_parentheses 0
+} -sqlbody {
+  SELECT fts3_exprtest('simple', 'a -b', 'a', 'b', 'c')
+} -cleanup {
+  set sqlite_fts3_enable_parentheses 1
+}
+
+#------------------------------------------------------------------------
+# The following tests are not very important. They cover error handling
+# cases in the test code, which makes test coverage easier to measure.
+# 
+do_test fts3expr-5.1 {
+  catchsql { SELECT fts3_exprtest('simple', 'a b') }
+} {1 {Usage: fts3_exprtest(tokenizer, expr, col1, ...}}
+do_test fts3expr-5.2 {
+  catchsql { SELECT fts3_exprtest('doesnotexist', 'a b', 'c') }
+} {1 {unknown tokenizer: doesnotexist}}
+do_test fts3expr-5.3 {
+  catchsql { SELECT fts3_exprtest('simple', 'a b OR', 'c') }
+} {1 {Error parsing expression}}
+
+#------------------------------------------------------------------------
+# The next set of tests verifies that things actually work as they are
+# supposed to when using the new syntax.
+# 
+do_test fts3expr-6.1 {
+  execsql {
+    CREATE VIRTUAL TABLE t1 USING fts3(a);
+  }
+  for {set ii 1} {$ii < 32} {incr ii} {
+    set v [list]
+    if {$ii & 1}  { lappend v one }
+    if {$ii & 2}  { lappend v two }
+    if {$ii & 4}  { lappend v three }
+    if {$ii & 8}  { lappend v four }
+    if {$ii & 16} { lappend v five }
+    execsql { INSERT INTO t1 VALUES($v) }
+  }
+
+  execsql {SELECT rowid FROM t1 WHERE t1 MATCH 'five four one' ORDER BY rowid}
+} {25 27 29 31}
+
+foreach {id expr res} {
+
+  2 "five four NOT one" {24 26 28 30}
+
+  3 "five AND four OR one" 
+      {1 3 5 7 9 11 13 15 17 19 21 23 24 25 26 27 28 29 30 31}
+
+  4 "five AND (four OR one)" {17 19 21 23 24 25 26 27 28 29 30 31}
+
+  5 "five NOT (four OR one)" {16 18 20 22}
+
+  6 "(five NOT (four OR one)) OR (five AND (four OR one))"
+      {16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31}
+
+  7 "(five OR one) AND two AND three" {7 15 22 23 30 31}
+
+  8 "five OR one AND two AND three" 
+    {7 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31}
+
+  9 "five OR one two three" 
+    {7 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31}
+
+  10 "five OR \"one two three\"" 
+    {7 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31}
+
+  11 "one two OR four five NOT three" {3 7 11 15 19 23 24 25 26 27 31}
+
+  12 "(one two OR four five) NOT three" {3 11 19 24 25 26 27}
+
+  13 "((((((one two OR four five)))))) NOT three" {3 11 19 24 25 26 27}
+
+} {
+  do_test fts3expr-6.1.$id {
+    execsql { SELECT rowid FROM t1 WHERE t1 MATCH $expr ORDER BY rowid }
+  } $res
+}
+
+set sqlite_fts3_enable_parentheses 0
+foreach {id expr res} {
+  1 "one -two three"  {5 13 21 29}
+  2 "-two one three"  {5 13 21 29}
+  3 "one three -two"  {5 13 21 29}
+  4 "-one -two three" {4 12 20 28}
+  5 "three -one -two" {4 12 20 28}
+  6 "-one three -two" {4 12 20 28}
+} {
+  do_test fts3expr-6.2.$id {
+    execsql { SELECT rowid FROM t1 WHERE t1 MATCH $expr ORDER BY rowid }
+  } $res
+}
+set sqlite_fts3_enable_parentheses 1
+
+do_test fts3expr-7.1 {
+  execsql {
+    CREATE VIRTUAL TABLE test USING fts3 (keyword);
+    INSERT INTO test VALUES ('abc');
+    SELECT * FROM test WHERE keyword MATCH '""';
+  }
+} {}
+
+
+do_test fts3expr-8.0 { test_fts3expr "(blah)" } {PHRASE 3 0 blah}
+do_test fts3expr-8.1 { test_fts3expr "(blah.)" } {PHRASE 3 0 blah}
+do_test fts3expr-8.2 { test_fts3expr "(blah,)" } {PHRASE 3 0 blah}
+do_test fts3expr-8.3 { test_fts3expr "(blah!)" } {PHRASE 3 0 blah}
+do_test fts3expr-8.4 { test_fts3expr "(blah-)" } {PHRASE 3 0 blah}
+
+do_test fts3expr-8.5 { test_fts3expr "((blah.))" } {PHRASE 3 0 blah}
+do_test fts3expr-8.6 { test_fts3expr "(((blah,)))" } {PHRASE 3 0 blah}
+do_test fts3expr-8.7 { test_fts3expr "((((blah!))))" } {PHRASE 3 0 blah}
+
+do_test fts3expr-8.8 { test_fts3expr "(,(blah-),)" } {PHRASE 3 0 blah}
+
+set sqlite_fts3_enable_parentheses 0
+
+do_test fts3expr-9.1 {
+  test_fts3expr "f (e NEAR/2 a)"
+} {AND {PHRASE 3 0 f} {NEAR/2 {PHRASE 3 0 e} {PHRASE 3 0 a}}}
+
+do_test fts3expr-10.1 { test_fts3expr "abc *" } {PHRASE 3 0 abc}
+do_test fts3expr-10.2 { test_fts3expr "*" } {}
+do_test fts3expr-10.3 { test_fts3expr "abc*" } {PHRASE 3 0 abc+}
+
+finish_test
diff --git a/test/fts3expr2.test b/test/fts3expr2.test
new file mode 100644
index 0000000000000000000000000000000000000000..c3d161730b47f9c0e9e11263555d2d6090ed4e62
--- /dev/null
+++ b/test/fts3expr2.test
@@ -0,0 +1,166 @@
+# 2009 January 1
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS3 module syntax parser.
+#
+# $Id: fts3expr2.test,v 1.2 2009/06/05 17:09:12 drh Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+# Test overview:
+# 
+#   The tests in this file are pseudo-randomly generated. They test
+#   the fts3 match expression parser via the test interface
+#   SQL function "fts3_exprtest" (see comments in fts3_expr.c).
+#
+#   Each test case works as follows:
+#   
+#     1. A random expression tree is generated using proc [random_expr_tree].
+#     2. The expression tree is converted to the text of an equivalent
+#        fts3 expression using proc [tree_to_expr].
+#     3. The test SQL function "fts3_exprtest" is used to parse the 
+#        expression text generated in step (2), returning a parsed expression
+#        tree.
+#     4. Test that the tree returned in step (3) matches that generated in 
+#        step (1).
+#
+#   In step (2), 4 different fts3 expressions are created from each 
+#   expression tree by varying the following boolean properties:
+#
+#     * Whether or not superflous parenthesis are included. i.e. if
+#       "a OR b AND (c OR d)" or "a OR (b AND (c OR d))" is generated.
+#
+#     * Whether or not explict AND operators are used. i.e. if
+#     "a OR b AND c" or "a OR b c" is generated.
+#
+
+set sqlite_fts3_enable_parentheses 1
+
+proc strip_phrase_data {L} {
+  if {[lindex $L 0] eq "PHRASE"} {
+    return [list P [lrange $L 3 end]]
+  }
+  return [list \
+    [lindex $L 0] \
+    [strip_phrase_data [lindex $L 1]] \
+    [strip_phrase_data [lindex $L 2]] \
+  ]
+}
+proc test_fts3expr2 {expr} {
+  strip_phrase_data [
+    db one {SELECT fts3_exprtest('simple', $expr, 'a', 'b', 'c')}
+  ]
+}
+
+proc rnd {nMax} { expr {int(rand()*$nMax)} }
+
+proc random_phrase {} {
+  set phrases [list one two three four "one two" "three four"]
+  list P [lindex $phrases [rnd [llength $phrases]]]
+}
+
+# Generate and return a pseudo-random expression tree. Using the same 
+# format returned by the [test_fts3expr2] proc.
+#
+proc random_expr_tree {iHeight} {
+  if {$iHeight==0 || [rnd 3]==0} {
+    return [random_phrase]
+  }
+
+  set operators [list NEAR NOT AND OR]
+  set op [lindex $operators [rnd 4]]
+
+  if {$op eq "NEAR"} {
+    set iDistance [rnd 15]
+    return [list $op/$iDistance [random_phrase] [random_phrase]]
+  }
+
+  set iNH [expr {$iHeight - 1}]
+  return [list $op [random_expr_tree $iNH] [random_expr_tree $iNH]]
+}
+
+# Given an expression tree, generate a corresponding expression.
+#
+proc tree_to_expr {tree all_brackets implicit_and} {
+  set prec(NOT) 2
+  set prec(AND) 3
+  set prec()    3
+  set prec(OR)  4
+
+  set op [lindex $tree 0]
+
+  if {$op eq "P"} {
+    set phrase [lindex $tree 1]
+    if {[llength $phrase]>1} {
+      return "\"$phrase\""
+    } else {
+      return $phrase
+    }
+  }
+
+  if {$op eq "NEAR/10"} {
+    set op "NEAR"
+  }
+  if {$op eq "AND" && $implicit_and} {
+    set op ""
+  }
+
+  set lhs [lindex $tree 1]
+  set rhs [lindex $tree 2]
+  set zLeft  [tree_to_expr $lhs $all_brackets $implicit_and]
+  set zRight [tree_to_expr $rhs $all_brackets $implicit_and]
+
+  set iPrec 5
+  set iLeftPrec 0
+  set iRightPrec 0
+
+  catch {set iPrec      $prec($op)}
+  catch {set iLeftPrec  $prec([lindex $lhs 0])}
+  catch {set iRightPrec $prec([lindex $rhs 0])}
+
+  if {$iLeftPrec > $iPrec || $all_brackets} {
+    set zLeft "($zLeft)"
+  } 
+  if {$iRightPrec >= $iPrec || $all_brackets} {
+    set zRight "($zRight)"
+  } 
+
+  return "$zLeft $op $zRight"
+}
+
+proc do_exprparse_test {name expr tree} {
+  uplevel do_test $name [list "test_fts3expr2 {$expr}"] [list $tree]
+}
+
+for {set iTest 1} {$iTest<500} {incr iTest} {
+  set t [random_expr_tree 4]
+
+  set e1 [tree_to_expr $t 0 0]
+  set e2 [tree_to_expr $t 0 1]
+  set e3 [tree_to_expr $t 1 0]
+  set e4 [tree_to_expr $t 1 1]
+
+  do_exprparse_test fts3expr2-$iTest.1 $e1 $t
+  do_exprparse_test fts3expr2-$iTest.2 $e2 $t
+  do_exprparse_test fts3expr2-$iTest.3 $e3 $t
+  do_exprparse_test fts3expr2-$iTest.4 $e4 $t
+}
+
+set sqlite_fts3_enable_parentheses 0
+finish_test
diff --git a/test/fts3expr3.test b/test/fts3expr3.test
new file mode 100644
index 0000000000000000000000000000000000000000..83c153218c85495dc9a1e611e97552c0514aaf7c
--- /dev/null
+++ b/test/fts3expr3.test
@@ -0,0 +1,238 @@
+# 2009 January 1
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the part of the FTS3 expression
+# parser that rebalances large expressions.
+#
+# $Id: fts3expr2.test,v 1.2 2009/06/05 17:09:12 drh Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+set ::testprefix fts3expr3
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+set sqlite_fts3_enable_parentheses 1
+
+proc strip_phrase_data {L} {
+  if {[lindex $L 0] eq "PHRASE"} {
+    return [list P [lrange $L 3 end]]
+  }
+  return [list \
+    [lindex $L 0] \
+    [strip_phrase_data [lindex $L 1]] \
+    [strip_phrase_data [lindex $L 2]] \
+  ]
+}
+proc test_fts3expr2 {expr} {
+  strip_phrase_data [
+    db one {SELECT fts3_exprtest_rebalance('simple', $expr, 'a', 'b', 'c')}
+  ]
+}
+
+proc balanced_exprtree_structure {nEntry} {
+  set L [list]
+  for {set i 1} {$i <= $nEntry} {incr i} {
+    lappend L xxx
+  }
+  while {[llength $L] > 1} {
+    set N [list]
+    if {[llength $L] % 2} {
+      foreach {a b} [lrange $L 0 end-1] { lappend N [list AND $a $b] }
+      lappend N [lindex $L end]
+    } else {
+      foreach {a b} $L { lappend N [list AND $a $b] }
+    }
+    set L $N
+  }
+  return [lindex $L 0]
+}
+
+proc balanced_and_tree {nEntry} {
+  set query [balanced_exprtree_structure $nEntry]
+  if {$query == "xxx"} {
+    return "P 1"
+  }
+  for {set i 1} {$i <= $nEntry} {incr i} {
+    regsub xxx $query "{P $i}" query
+  }
+  return $query
+}
+
+proc random_tree_structure {nEntry bParen op} {
+  set query xxx
+  for {set i 1} {$i < $nEntry} {incr i} {
+    set x1 [expr int(rand()*4.0)]
+    set x2 [expr int(rand()*2.0)]
+    if {$x1==0 && $bParen} {
+      set query "($query)"
+    }
+    if {$x2} {
+      set query "xxx $op $query"
+    } else {
+      set query "$query $op xxx"
+    }
+  }
+  return $query
+}
+
+proc random_and_query {nEntry {bParen 0}} {
+  set query [random_tree_structure $nEntry $bParen AND]
+  for {set i 1} {$i <= $nEntry} {incr i} {
+    regsub xxx $query $i query
+  }
+  return $query
+}
+
+proc random_or_query {nEntry} {
+  set query [random_tree_structure $nEntry 1 OR]
+  for {set i 1} {$i <= $nEntry} {incr i} {
+    regsub xxx $query $i query
+  }
+  return $query
+}
+
+proc random_andor_query {nEntry} {
+  set query [random_tree_structure $nEntry 1 AND]
+  for {set i 1} {$i <= $nEntry} {incr i} {
+    regsub xxx $query "([random_or_query $nEntry])" query
+  }
+  return $query
+}
+
+proc balanced_andor_tree {nEntry} {
+  set tree [balanced_exprtree_structure $nEntry]
+  set node "{[balanced_and_tree $nEntry]}"
+  regsub -all AND $node OR node
+  regsub -all xxx $tree $node tree
+  return $tree
+}
+
+if 1 {
+
+# Test that queries like "1 AND 2 AND 3 AND 4..." are transformed to 
+# balanced trees by FTS.
+#
+for {set i 1} {$i < 100} {incr i} {
+  do_test 1.$i {
+    test_fts3expr2 [random_and_query $i]
+  } [balanced_and_tree $i]
+}
+
+# Same again, except with parenthesis inserted at arbitrary points.
+#
+for {set i 1} {$i < 100} {incr i} {
+  do_test 2.$i {
+    test_fts3expr2 [random_and_query $i 1]
+  } [balanced_and_tree $i]
+}
+
+# Now attempt to balance two AND trees joined by an OR.
+#
+for {set i 1} {$i < 100} {incr i} {
+  do_test 3.$i {
+    test_fts3expr2 "[random_and_query $i 1] OR [random_and_query $i 1]"
+  } [list OR [balanced_and_tree $i] [balanced_and_tree $i]]
+}
+
+# Try trees of AND nodes with leaves that are themselves trees of OR nodes.
+#
+for {set i 2} {$i < 64} {incr i 4} {
+  do_test 3.$i {
+    test_fts3expr2 [random_andor_query $i]
+  } [balanced_andor_tree $i]
+}
+
+# These exceed the depth limit. 
+#
+for {set i 65} {$i < 70} {incr i} {
+  do_test 3.$i {
+    list [catch {test_fts3expr2 [random_andor_query $i]} msg] $msg
+  } {1 {Error parsing expression}}
+}
+
+# This also exceeds the depth limit. 
+#
+
+do_test 4.1.1 {
+  set q "1"
+  for {set i 2} {$i < 5000} {incr i} {
+    append q " AND $i"
+  }
+  list [catch {test_fts3expr2 $q} msg] $msg
+} {1 {Error parsing expression}}
+do_test 4.1.2 {
+  set q "1"
+  for {set i 2} {$i < 4000} {incr i} {
+    append q " AND $i"
+  }
+  catch {test_fts3expr2 $q}
+} {0}
+
+proc create_toggle_tree {nDepth} {
+  if {$nDepth == 0} { return xxx }
+  set nNew [expr $nDepth-1]
+  if {$nDepth % 2} {
+    return "([create_toggle_tree $nNew]) OR ([create_toggle_tree $nNew])"
+  }
+  return "([create_toggle_tree $nNew]) AND ([create_toggle_tree $nNew])"
+}
+
+do_test 4.2 {
+  list [catch {test_fts3expr2 [create_toggle_tree 17]} msg] $msg
+} {1 {Error parsing expression}}
+
+set query [random_andor_query 12]
+set result [balanced_andor_tree 12]
+do_faultsim_test fts3expr3-fault-1 -faults oom-* -body {
+  test_fts3expr2 $::query
+} -test {
+  faultsim_test_result [list 0 $::result]
+}
+
+}
+
+#-------------------------------------------------------------------
+
+foreach {tn expr res} {
+  1 {1 OR 2 OR 3 OR 4}           {OR {OR {P 1} {P 2}} {OR {P 3} {P 4}}} 
+  2 {1 OR (2 AND 3 AND 4 AND 5)} 
+    {OR {P 1} {AND {AND {P 2} {P 3}} {AND {P 4} {P 5}}}}
+  3 {(2 AND 3 AND 4 AND 5) OR 1} 
+    {OR {AND {AND {P 2} {P 3}} {AND {P 4} {P 5}}} {P 1}}
+
+  4 {1 AND (2 OR 3 OR 4 OR 5)} 
+    {AND {P 1} {OR {OR {P 2} {P 3}} {OR {P 4} {P 5}}}}
+  5 {(2 OR 3 OR 4 OR 5) AND 1} 
+    {AND {OR {OR {P 2} {P 3}} {OR {P 4} {P 5}}} {P 1}}
+
+  6 {(2 OR 3 OR 4 OR 5) NOT 1} 
+    {NOT {OR {OR {P 2} {P 3}} {OR {P 4} {P 5}}} {P 1}}
+
+  7 {1 NOT (2 OR 3 OR 4 OR 5)} 
+    {NOT {P 1} {OR {OR {P 2} {P 3}} {OR {P 4} {P 5}}}}
+
+  8 {(1 OR 2 OR 3 OR 4) NOT (5 AND 6 AND 7 AND 8)}
+    {NOT {OR {OR {P 1} {P 2}} {OR {P 3} {P 4}}} {AND {AND {P 5} {P 6}} {AND {P 7} {P 8}}}}
+} {
+  do_test 5.1.$tn {
+    test_fts3expr2 $expr
+  } $res
+}
+
+set sqlite_fts3_enable_parentheses 0
+finish_test
diff --git a/test/fts3expr4.test b/test/fts3expr4.test
new file mode 100644
index 0000000000000000000000000000000000000000..b9227aef55da93f681c8af5c58c7863c07cdd278
--- /dev/null
+++ b/test/fts3expr4.test
@@ -0,0 +1,91 @@
+# 2014 May 7
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS3 module.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix fts3expr4
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3||!icu {
+  finish_test
+  return
+}
+
+set sqlite_fts3_enable_parentheses 1
+
+proc test_fts3expr {tokenizer expr} {
+  db one {SELECT fts3_exprtest($tokenizer, $expr, 'a', 'b', 'c')}
+}
+
+proc do_icu_expr_test {tn expr res} {
+  set res2 [list {*}$res]
+  uplevel [list do_test $tn [list test_fts3expr "icu en_US" $expr] $res2]
+}
+
+proc do_simple_expr_test {tn expr res} {
+  uplevel [list do_test $tn [list test_fts3expr simple $expr] [list {*}$res]]
+}
+
+#-------------------------------------------------------------------------
+#
+do_icu_expr_test 1.1 "abcd"    {PHRASE 3 0 abcd}
+do_icu_expr_test 1.2 " tag "   {PHRASE 3 0 tag}
+do_icu_expr_test 1.3 {"x y z"} {PHRASE 3 0 x y z}
+do_icu_expr_test 1.4 {x OR y}       {OR {PHRASE 3 0 x} {PHRASE 3 0 y}}
+do_icu_expr_test 1.5 {(x OR y)}     {OR {PHRASE 3 0 x} {PHRASE 3 0 y}}
+do_icu_expr_test 1.6 { "(x OR y)" } {PHRASE 3 0 ( x or y )}
+
+# In "col:word", if "col" is not the name of a column, the entire thing
+# is passed to the tokenizer.
+#
+do_icu_expr_test 1.7 {a:word} {PHRASE 0 0 word}
+# do_icu_expr_test 1.8 {d:word} {PHRASE 3 0 d:word}
+do_test 1.8 {
+  set res [
+    db one {SELECT fts3_exprtest('icu en_US', 'd:word', 'a', 'b', 'c')}
+  ]
+  expr {
+    $res=="PHRASE 3 0 d:word" ||
+    $res=="AND {AND {PHRASE 3 0 d} {PHRASE 3 0 :}} {PHRASE 3 0 word}"
+  }
+} 1
+
+set sqlite_fts3_enable_parentheses 0
+
+do_icu_expr_test 2.1 {
+  f (e NEAR/2 a)
+} {AND {AND {AND {PHRASE 3 0 f} {PHRASE 3 0 (}} {NEAR/2 {PHRASE 3 0 e} {PHRASE 3 0 a}}} {PHRASE 3 0 )}}
+
+#-------------------------------------------------------------------------
+#
+do_simple_expr_test 3.1 {*lOl* *h4h*} {
+  AND {PHRASE 3 0 lol+} {PHRASE 3 0 h4h+}
+}
+
+do_icu_expr_test 3.2 {*lOl* *h4h*} {
+  AND {AND {AND {PHRASE 3 0 *} {PHRASE 3 0 lol+}} {PHRASE 3 0 *}} {PHRASE 3 0 h4h+}
+}
+
+do_simple_expr_test 3.3 { * }    {}
+do_simple_expr_test 3.4 { *a }   { PHRASE 3 0 a }
+do_simple_expr_test 3.5 { a*b }  { AND {PHRASE 3 0 a+} {PHRASE 3 0 b} }
+do_simple_expr_test 3.6 { *a*b } { AND {PHRASE 3 0 a+} {PHRASE 3 0 b} }
+do_simple_expr_test 3.7 { *"abc" } { PHRASE 3 0 abc }
+do_simple_expr_test 3.8 { "abc"* } { PHRASE 3 0 abc }
+do_simple_expr_test 3.8 { "ab*c" } { PHRASE 3 0 ab+ c }
+
+do_icu_expr_test    3.9 { "ab*c" } { PHRASE 3 0 ab+ * c }
+do_icu_expr_test    3.10 { ab*c } { AND {PHRASE 3 0 ab+} {PHRASE 3 0 c}}
+
+finish_test
diff --git a/test/fts3expr5.test b/test/fts3expr5.test
new file mode 100644
index 0000000000000000000000000000000000000000..1317befb1c941f2390944749d814eab4ec7a70d2
--- /dev/null
+++ b/test/fts3expr5.test
@@ -0,0 +1,66 @@
+# 2006 September 9
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS3 module.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix fts3expr5
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+proc test_fts3expr {expr} {
+  db one {SELECT fts3_exprtest('simple', $expr, 'a', 'b', 'c')}
+}
+
+#-------------------------------------------------------------------------
+# Various forms of empty phrase expressions.
+#
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t0 USING fts3(x);
+  SELECT rowid FROM t0 WHERE x MATCH '';
+} {}
+do_execsql_test 1.1 {
+  SELECT rowid FROM t0 WHERE x MATCH '""';
+} {}
+do_execsql_test 1.2 {
+  SELECT rowid FROM t0 WHERE x MATCH '"" ""';
+} {}
+do_execsql_test 1.3 {
+  SELECT rowid FROM t0 WHERE x MATCH '"" OR ""';
+} {}
+do_execsql_test 1.4 {
+  SELECT rowid FROM t0 WHERE x MATCH '"" NOT ""';
+} {}
+do_execsql_test 1.5 {
+  SELECT rowid FROM t0 WHERE x MATCH '""""';
+} {}
+
+#-------------------------------------------------------------------------
+# Various forms of empty phrase expressions.
+#
+set sqlite_fts3_enable_parentheses 1
+do_test 2.0 {
+  test_fts3expr {(a:123)(b:234)()(c:456)}
+} {AND {AND {PHRASE 0 0 123} {PHRASE 1 0 234}} {PHRASE 2 0 456}}
+do_test 2.1 {
+  test_fts3expr {(a:123)(b:234)(c:456)}
+} {AND {AND {PHRASE 0 0 123} {PHRASE 1 0 234}} {PHRASE 2 0 456}}
+do_test 2.2 {
+  list [catch { test_fts3expr {"123" AND ( )} } msg] $msg
+} {1 {Error parsing expression}}
+
+finish_test
diff --git a/test/fts3f.test b/test/fts3f.test
new file mode 100644
index 0000000000000000000000000000000000000000..d9a57cbc30ab455fef9d0c68e8914b805b89f97d
--- /dev/null
+++ b/test/fts3f.test
@@ -0,0 +1,57 @@
+# 2006 September 9
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS3 module.
+#
+# $Id: fts3aa.test,v 1.1 2007/08/20 17:38:42 shess Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix fts3f
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE ft USING fts3(x);
+  BEGIN;
+    INSERT INTO ft VALUES('a one'), ('b one'), ('c one');
+}
+
+do_test 1.1 {
+  set ret [list]
+  db eval { SELECT docid FROM ft WHERE ft MATCH 'one' } {
+    if { $docid==2 } {
+      db eval COMMIT
+    }
+    lappend ret $docid
+  }
+  set ret
+} {1 2 3}
+
+do_execsql_test 1.2 {
+  BEGIN;
+    INSERT INTO ft VALUES('a one'), ('b one'), ('c one');
+}
+
+do_execsql_test 1.3 {
+  SELECT docid, optimize(ft) FROM ft WHERE ft MATCH 'one'
+} {
+  1 {Index optimized} 2 {Index already optimal} 3 {Index already optimal}
+  4 {Index already optimal}
+  5 {Index already optimal} 6 {Index already optimal}
+}
+
+finish_test
diff --git a/test/fts3fault.test b/test/fts3fault.test
new file mode 100644
index 0000000000000000000000000000000000000000..20e5f25de54156fdd0f6fa01eefb0cdb26baa39d
--- /dev/null
+++ b/test/fts3fault.test
@@ -0,0 +1,271 @@
+# 2010 June 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+set ::testprefix fts3fault
+
+# If SQLITE_ENABLE_FTS3 is not defined, omit this file.
+ifcapable !fts3 { finish_test ; return }
+
+set ::TMPDBERROR [list 1 \
+  {unable to open a temporary database file for storing temporary tables}
+]
+
+# Test error handling in the sqlite3Fts3Init() function. This is the 
+# function that registers the FTS3 module and various support functions
+# with SQLite.
+#
+do_faultsim_test 1 -body { 
+  sqlite3 db test.db 
+  expr 0
+} -test {
+  catch { db close }
+}
+
+# Test error handling in an "ALTER TABLE ... RENAME TO" statement on an
+# FTS3 table. Specifically, test renaming the table within a transaction
+# after it has been written to.
+#
+faultsim_delete_and_reopen
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE t1 USING fts3;
+  INSERT INTO t1 VALUES('test renaming the table');
+  INSERT INTO t1 VALUES(' after it has been written');
+}
+do_faultsim_test 2 -prep { 
+  sqlite3 db test.db
+  execsql {
+    BEGIN;
+      INSERT INTO t1 VALUES('registers the FTS3 module');
+      INSERT INTO t1 VALUES('various support functions');
+  }
+} -body {
+  execsql { ALTER TABLE t1 RENAME TO t2 }
+} -test {
+  faultsim_test_result {0 {}} $::TMPDBERROR
+}
+
+# Test error handling in the special case where a single prefix query 
+# matches terms that reside on a large range of leaf nodes.
+#
+do_test fts3fault-3.0 {
+  sqlite3 db test.db
+  execsql { CREATE VIRTUAL TABLE t3 USING fts4; }
+  execsql { INSERT INTO t3(t3) VALUES('nodesize=50') }
+  execsql { BEGIN }
+  for {set i 0} {$i < 1000} {incr i} {
+    execsql { INSERT INTO t3 VALUES('aaa' || $i) }
+  }
+  execsql { COMMIT }
+} {}
+
+do_faultsim_test 3 -faults oom-transient -prep { 
+  sqlite3 db test.db
+  execsql { SELECT * FROM t3 WHERE t3 MATCH 'x' }
+} -body {
+  execsql { SELECT count(rowid) FROM t3 WHERE t3 MATCH 'aa*' }
+} -test {
+  faultsim_test_result {0 1000} 
+}
+
+do_test fts3fault-4.0 {
+  faultsim_delete_and_reopen
+  execsql { 
+    CREATE VIRTUAL TABLE t4 USING fts4; 
+    INSERT INTO t4 VALUES('The British Government called on');
+    INSERT INTO t4 VALUES('as pesetas then became much');
+  }
+} {}
+faultsim_save_and_close
+do_faultsim_test 4 -prep { 
+  faultsim_restore_and_reopen
+  execsql { SELECT content FROM t4 }
+} -body {
+  execsql { SELECT optimize(t4) FROM t4 LIMIT 1 }
+} -test {
+  faultsim_test_result {0 {{Index optimized}}}
+}
+
+do_test fts3fault-5.0 {
+  faultsim_delete_and_reopen
+  execsql { 
+    CREATE VIRTUAL TABLE t5 USING fts4; 
+    INSERT INTO t5 VALUES('The British Government called on');
+    INSERT INTO t5 VALUES('as pesetas then became much');
+  }
+} {}
+faultsim_save_and_close
+do_faultsim_test 5 -prep { 
+  faultsim_restore_and_reopen
+  execsql { 
+    BEGIN;
+      INSERT INTO t5 VALUES('influential in shaping his future outlook');
+      INSERT INTO t5 VALUES('might be acceptable to the British electorate');
+  }
+} -body {
+  execsql { SELECT rowid FROM t5 WHERE t5 MATCH 'british' }
+} -test {
+  faultsim_test_result {0 {1 4}}
+}
+
+do_test fts3fault-6.0 {
+  faultsim_delete_and_reopen
+  execsql { CREATE VIRTUAL TABLE t6 USING fts4 }
+} {}
+faultsim_save_and_close
+do_faultsim_test 6 -prep { 
+  faultsim_restore_and_reopen
+  execsql { SELECT rowid FROM t6 }
+} -body {
+  execsql { DROP TABLE t6 }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+# Test various malloc failures while processing FTS4 parameters.
+#
+do_faultsim_test 7.1 -prep { 
+  faultsim_delete_and_reopen
+} -body {
+  execsql { CREATE VIRTUAL TABLE t1 USING fts4(a, b, matchinfo=fts3) }
+} -test {
+  faultsim_test_result {0 {}}
+}
+do_faultsim_test 7.2 -prep { 
+  faultsim_delete_and_reopen
+} -body {
+  execsql { CREATE VIRTUAL TABLE t1 USING fts4(a, b, matchinfo=fs3) }
+} -test {
+  faultsim_test_result {1 {unrecognized matchinfo: fs3}} \
+                       {1 {vtable constructor failed: t1}} \
+                       {1 {SQL logic error}}
+}
+do_faultsim_test 7.3 -prep { 
+  faultsim_delete_and_reopen
+} -body {
+  execsql { CREATE VIRTUAL TABLE t1 USING fts4(a, b, matchnfo=fts3) }
+} -test {
+  faultsim_test_result {1 {unrecognized parameter: matchnfo=fts3}} \
+                       {1 {vtable constructor failed: t1}} \
+                       {1 {SQL logic error}}
+}
+
+
+proc mit {blob} {
+  set scan(littleEndian) i*
+  set scan(bigEndian) I*
+  binary scan $blob $scan($::tcl_platform(byteOrder)) r
+  return $r
+}
+
+do_test 8.0 {
+  faultsim_delete_and_reopen
+  execsql { CREATE VIRTUAL TABLE t8 USING fts4 }
+  execsql "INSERT INTO t8 VALUES('a b c')"
+  execsql "INSERT INTO t8 VALUES('b b b')"
+  execsql "INSERT INTO t8 VALUES('[string repeat {c } 50000]')"
+  execsql "INSERT INTO t8 VALUES('d d d')"
+  execsql "INSERT INTO t8 VALUES('e e e')"
+  execsql "INSERT INTO t8(t8) VALUES('optimize')"
+  faultsim_save_and_close
+} {}
+
+ifcapable fts4_deferred {
+  do_faultsim_test 8.1 -faults oom-t* -prep { 
+    faultsim_restore_and_reopen
+    db func mit mit
+  } -body {
+    execsql { SELECT mit(matchinfo(t8, 'x')) FROM t8 WHERE t8 MATCH 'a b c' }
+  } -test {
+    faultsim_test_result {0 {{1 1 1 1 4 2 1 5 5}}}
+  }
+}
+
+do_faultsim_test 8.2 -faults oom-t* -prep { 
+  faultsim_restore_and_reopen
+  db func mit mit
+} -body {
+  execsql { SELECT mit(matchinfo(t8, 's')) FROM t8 WHERE t8 MATCH 'a b c' }
+} -test {
+  faultsim_test_result {0 3} $::TMPDBERROR
+}
+do_faultsim_test 8.3 -prep { 
+  faultsim_restore_and_reopen
+  db func mit mit
+} -body {
+  execsql { SELECT mit(matchinfo(t8, 'a')) FROM t8 WHERE t8 MATCH 'a b c' }
+} -test {
+  faultsim_test_result {0 10002}
+}
+do_faultsim_test 8.4 -prep { 
+  faultsim_restore_and_reopen
+  db func mit mit
+} -body {
+  execsql { SELECT mit(matchinfo(t8, 'l')) FROM t8 WHERE t8 MATCH 'a b c' }
+} -test {
+  faultsim_test_result {0 3}
+}
+do_faultsim_test 8.5 -prep { 
+  faultsim_restore_and_reopen
+  db func mit mit
+} -body {
+  execsql { SELECT mit(matchinfo(t8, 'l')) FROM t8 WHERE t8 MATCH '"a b c"' }
+} -test {
+  faultsim_test_result {0 3}
+}
+
+do_test 9.0 {
+  faultsim_delete_and_reopen
+  execsql {
+    CREATE VIRTUAL TABLE t9 USING fts4(tokenize=porter);
+    INSERT INTO t9 VALUES(
+      'this record is used toooooooooooooooooooooooooooooooooooooo try to'
+    );
+    SELECT offsets(t9) FROM t9 WHERE t9 MATCH 'to*';
+  }
+  faultsim_save_and_close
+} {}
+do_faultsim_test 9.1 -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { SELECT offsets(t9) FROM t9 WHERE t9 MATCH 'to*' }
+} -test {
+  faultsim_test_result {0 {{0 0 20 39 0 0 64 2}}}
+}
+
+do_faultsim_test 10.1 -prep {
+  faultsim_delete_and_reopen
+} -body {
+  execsql { CREATE VIRTUAL TABLE t1 USING fts4(a, b, languageid=d) }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 11.0 {
+  CREATE VIRTUAL TABLE t1 USING fts3(a, b);
+}
+faultsim_save_and_close
+
+do_faultsim_test 11 -faults oom* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { DROP TABLE t1 }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+
+finish_test
diff --git a/test/fts3fault2.test b/test/fts3fault2.test
new file mode 100644
index 0000000000000000000000000000000000000000..913f9baa0583a9fb4b54336ccbd2f534ff58f677
--- /dev/null
+++ b/test/fts3fault2.test
@@ -0,0 +1,250 @@
+# 2011 February 3
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix fts3fault2
+
+# If SQLITE_ENABLE_FTS3 is not defined, omit this file.
+ifcapable !fts3 { finish_test ; return }
+
+do_test 1.0 {
+  execsql {
+    CREATE VIRTUAL TABLE t1 USING fts4(x);
+    INSERT INTO t1 VALUES('a b c');
+    INSERT INTO t1 VALUES('c d e');
+    CREATE VIRTUAL TABLE terms USING fts4aux(t1);
+  }
+  faultsim_save_and_close
+} {}
+
+do_faultsim_test 1.1 -prep {
+  faultsim_restore_and_reopen
+  db eval {SELECT * FROM sqlite_master}
+} -body {
+  execsql "CREATE VIRTUAL TABLE terms2 USING fts4aux(t1)"
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+do_faultsim_test 1.2 -prep {
+  faultsim_restore_and_reopen
+  db eval {SELECT * FROM sqlite_master}
+} -body {
+  execsql "SELECT * FROM terms"
+} -test {
+  faultsim_test_result {0 {a * 1 1 a 0 1 1 b * 1 1 b 0 1 1 c * 2 2 c 0 2 2 d * 1 1 d 0 1 1 e * 1 1 e 0 1 1}}
+}
+
+do_faultsim_test 1.3 -prep {
+  faultsim_restore_and_reopen
+  db eval {SELECT * FROM sqlite_master}
+} -body {
+  execsql "SELECT * FROM terms WHERE term>'a' AND TERM < 'd'"
+} -test {
+  faultsim_test_result {0 {b * 1 1 b 0 1 1 c * 2 2 c 0 2 2}}
+}
+
+do_faultsim_test 1.4 -prep {
+  faultsim_restore_and_reopen
+  db eval {SELECT * FROM sqlite_master}
+} -body {
+  execsql "SELECT * FROM terms WHERE term='c'"
+} -test {
+  faultsim_test_result {0 {c * 2 2 c 0 2 2}}
+}
+
+do_test 2.0 {
+  faultsim_delete_and_reopen
+  execsql {
+    CREATE VIRTUAL TABLE tx USING fts4(a, b);
+    INSERT INTO tx VALUES('a b c', 'x y z');
+    CREATE VIRTUAL TABLE terms2 USING fts4aux(tx);
+  }
+  faultsim_save_and_close
+} {}
+
+do_faultsim_test 2.1 -prep {
+  faultsim_restore_and_reopen
+  db eval {SELECT * FROM sqlite_master}
+} -body {
+  execsql "SELECT * FROM terms2"
+} -test {
+  faultsim_test_result {0 {a * 1 1 a 0 1 1 b * 1 1 b 0 1 1 c * 1 1 c 0 1 1 x * 1 1 x 1 1 1 y * 1 1 y 1 1 1 z * 1 1 z 1 1 1}}
+}
+
+do_faultsim_test 3.0 -faults oom* -prep {
+  faultsim_delete_and_reopen
+  db eval { CREATE TABLE 'xx yy'(a, b); }
+} -body {
+  execsql {
+    CREATE VIRTUAL TABLE tt USING fts4(content="xx yy");
+  }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+do_faultsim_test 3.1 -faults oom* -prep {
+  faultsim_delete_and_reopen
+  db func zip zip
+  db func unzip unzip
+} -body {
+  execsql {
+    CREATE VIRTUAL TABLE tt USING fts4(compress=zip, uncompress=unzip);
+  }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+do_test 4.0 {
+  faultsim_delete_and_reopen
+  execsql {
+    CREATE VIRTUAL TABLE ft USING fts4(a, b);
+    INSERT INTO ft VALUES('U U T C O', 'F N D E S');
+    INSERT INTO ft VALUES('P H X G B', 'I D M R U');
+    INSERT INTO ft VALUES('P P X D M', 'Y V N T C');
+    INSERT INTO ft VALUES('Z L Q O W', 'D F U N Q');
+    INSERT INTO ft VALUES('A J D U P', 'C H M Q E');
+    INSERT INTO ft VALUES('P S A O H', 'S Z C W D');
+    INSERT INTO ft VALUES('T B N L W', 'C A K T I');
+    INSERT INTO ft VALUES('K E Z L O', 'L L Y C E');
+    INSERT INTO ft VALUES('C R E S V', 'Q V F W P');
+    INSERT INTO ft VALUES('S K H G W', 'R W Q F G');
+  }
+  faultsim_save_and_close
+} {}
+do_faultsim_test 4.1 -prep {
+  faultsim_restore_and_reopen
+  db eval {SELECT * FROM sqlite_master}
+} -body {
+  execsql { INSERT INTO ft(ft) VALUES('rebuild') }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+ifcapable fts3_unicode {
+  do_test 5.0 {
+    faultsim_delete_and_reopen
+    execsql {
+      CREATE VIRTUAL TABLE ft USING fts4(a, tokenize=unicode61);
+    }
+    faultsim_save_and_close
+  } {}
+  
+  do_faultsim_test 5.1 -faults oom* -prep {
+    faultsim_restore_and_reopen
+    db eval {SELECT * FROM sqlite_master}
+  } -body {
+    execsql { INSERT INTO ft VALUES('the quick brown fox'); }
+    execsql { INSERT INTO ft VALUES(
+       'theunusuallylongtokenthatjustdragsonandonandonandthendragsonsomemoreeof'
+      );
+    }
+    execsql { SELECT docid FROM ft WHERE ft MATCH 'th*' }
+  } -test {
+    faultsim_test_result {0 {1 2}}
+  }
+}
+
+reset_db
+do_test 6.0 {
+  execsql {
+    CREATE VIRTUAL TABLE t6 USING fts4(x,order=DESC);
+    INSERT INTO t6(docid, x) VALUES(-1,'a b');
+    INSERT INTO t6(docid, x) VALUES(1, 'b');
+  }
+  faultsim_save_and_close
+} {}
+
+do_faultsim_test 6.1 -faults oom* -prep {
+  faultsim_restore_and_reopen
+  db eval {SELECT * FROM sqlite_master}
+} -body {
+  execsql { SELECT docid FROM t6 WHERE t6 MATCH '"a* b"' }
+} -test {
+  faultsim_test_result {0 -1}
+}
+
+#-------------------------------------------------------------------------
+# Inject faults into a query for an N-byte prefix that uses a prefix=N+1
+# index.
+reset_db
+do_execsql_test 7.0 {
+  CREATE VIRTUAL TABLE t7 USING fts4(x,prefix=2);
+  INSERT INTO t7 VALUES('the quick brown fox');
+  INSERT INTO t7 VALUES('jumped over the');
+  INSERT INTO t7 VALUES('lazy dog');
+}
+do_faultsim_test 7.1 -faults oom* -body {
+  execsql { SELECT docid FROM t7 WHERE t7 MATCH 't*' }
+} -test {
+  faultsim_test_result {0 {1 2}}
+}
+
+#-------------------------------------------------------------------------
+# Inject faults into a opening an existing fts3 table that has been 
+# upgraded to add an %_stat table.
+#
+reset_db
+do_execsql_test 8.0 {
+  CREATE VIRTUAL TABLE t8 USING fts3;
+  INSERT INTO t8 VALUES('the quick brown fox');
+  INSERT INTO t8 VALUES('jumped over the');
+  INSERT INTO t8 VALUES('lazy dog');
+  INSERT INTO t8(t8) VALUES('automerge=8');
+  SELECT name FROM sqlite_master WHERE name LIKE 't8%';
+} {
+  t8 t8_content t8_segments t8_segdir t8_stat
+}
+faultsim_save_and_close
+
+do_faultsim_test 8.1 -faults oom* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { INSERT INTO t8 VALUES('one two three') }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+set ::TMPDBERROR [list 1 \
+  {unable to open a temporary database file for storing temporary tables}
+]
+do_faultsim_test 8.2 -faults oom* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { ALTER TABLE t8 RENAME TO t8ii }
+} -test {
+  faultsim_test_result {0 {}} $::TMPDBERROR
+}
+
+#-------------------------------------------------------------------------
+reset_db
+set chunkconfig [fts3_configure_incr_load 1 1]
+do_execsql_test 9.0 {
+  PRAGMA page_size = 512;
+  CREATE VIRTUAL TABLE t9 USING fts3;
+  WITH s(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<50
+  )
+  INSERT INTO t9 SELECT 'one two three' FROM s;
+}
+
+do_faultsim_test 8.2 -faults io* -body {
+  execsql { SELECT count(*) FROM t9 WHERE t9 MATCH '"one two three"' }
+} -test {
+  faultsim_test_result {0 50}
+}
+
+eval fts3_configure_incr_load $chunkconfig
+
+
+finish_test
diff --git a/test/fts3fault3.test b/test/fts3fault3.test
new file mode 100644
index 0000000000000000000000000000000000000000..ae204718b438feaec94d0064f73f458d603a5ea6
--- /dev/null
+++ b/test/fts3fault3.test
@@ -0,0 +1,82 @@
+# 2023 October 23 
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+set ::testprefix fts3fault
+
+# If SQLITE_ENABLE_FTS3 is not defined, omit this file.
+ifcapable !fts3 { finish_test ; return }
+
+set ::TMPDBERROR [list 1 \
+  {unable to open a temporary database file for storing temporary tables}
+]
+
+
+# Test error handling in an "ALTER TABLE ... RENAME TO" statement on an
+# FTS3 table. Specifically, test renaming the table within a transaction
+# after it has been written to.
+#
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts3(a);
+  INSERT INTO t1 VALUES('test renaming the table');
+  INSERT INTO t1 VALUES(' after it has been written');
+  INSERT INTO t1 VALUES(' actually other stuff instead');
+}
+faultsim_save_and_close
+do_faultsim_test 1 -faults oom* -prep { 
+  faultsim_restore_and_reopen
+  execsql {
+    BEGIN;
+      DELETE FROM t1 WHERE rowid=2;
+  }
+} -body {
+  execsql {
+    DELETE FROM t1;
+  }
+} -test {
+  catchsql { COMMIT }
+  faultsim_integrity_check
+  faultsim_test_result {0 {}}
+}
+
+#-------------------------------------------------------------------
+reset_db
+
+do_execsql_test 2.0 {
+  BEGIN;
+  CREATE VIRTUAL TABLE t1 USING fts3(a);
+  WITH s(i) AS (
+      SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<50
+  )
+  INSERT INTO t1 SELECT 'abc def ghi jkl mno pqr' FROM s;
+  COMMIT;
+}
+
+faultsim_save_and_close
+do_faultsim_test 2 -faults oom-t* -prep { 
+  faultsim_restore_and_reopen
+  execsql {
+    BEGIN;
+      CREATE TABLE x1(a PRIMARY KEY);
+  }
+} -body {
+  execsql {
+    PRAGMA integrity_check;
+  }
+} -test {
+  faultsim_test_result {0 ok} $::TMPDBERROR
+}
+
+
+finish_test
diff --git a/test/fts3first.test b/test/fts3first.test
new file mode 100644
index 0000000000000000000000000000000000000000..673f818debc98dd9c60775621a0e2856c12675a4
--- /dev/null
+++ b/test/fts3first.test
@@ -0,0 +1,163 @@
+# 2011 October 18
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+set testprefix fts3first
+
+proc lreverse {L} {
+  set res [list]
+  for {set ii [expr [llength $L]-1]} {$ii>=0} {incr ii -1} {
+    lappend res [lindex $L $ii]
+  }
+  set res
+}
+
+proc mit {blob} {
+  set scan(littleEndian) i*
+  set scan(bigEndian) I*
+  binary scan $blob $scan($::tcl_platform(byteOrder)) r
+  return $r
+}
+db func mit mit
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE x1 USING FTS4(a, b, c);
+  INSERT INTO x1(docid,a,b,c) VALUES(0, 'K H D S T', 'V M N Y K', 'S Z N Q S');
+  INSERT INTO x1(docid,a,b,c) VALUES(1, 'K N J L W', 'S Z W J Q', 'D U W S E');
+  INSERT INTO x1(docid,a,b,c) VALUES(2, 'B P M O I', 'R P H W S', 'R J L L E');
+  INSERT INTO x1(docid,a,b,c) VALUES(3, 'U R Q M L', 'M J K A V', 'Q W J T J');
+  INSERT INTO x1(docid,a,b,c) VALUES(4, 'N J C Y N', 'R U D X V', 'B O U A Q');
+  INSERT INTO x1(docid,a,b,c) VALUES(5, 'Q L X L U', 'I F N X S', 'U Q A N Y');
+  INSERT INTO x1(docid,a,b,c) VALUES(6, 'M R G U T', 'U V I Q P', 'X Y D L S');
+  INSERT INTO x1(docid,a,b,c) VALUES(7, 'D Y P O I', 'X J P K R', 'V O T H V');
+  INSERT INTO x1(docid,a,b,c) VALUES(8, 'R Y D L R', 'U U E S J', 'N W L M R');
+  INSERT INTO x1(docid,a,b,c) VALUES(9, 'Z P F N P', 'W A X D U', 'V A E Q A');
+  INSERT INTO x1(docid,a,b,c) VALUES(10, 'Q I A Q M', 'N D K H C', 'A H T Q Z');
+  INSERT INTO x1(docid,a,b,c) VALUES(11, 'T E R Q B', 'C I B C B', 'F Z U W R');
+  INSERT INTO x1(docid,a,b,c) VALUES(12, 'E S V U W', 'T P F W H', 'A M D J Q');
+  INSERT INTO x1(docid,a,b,c) VALUES(13, 'X S B X Y', 'U D N D P', 'X Z Y G F');
+  INSERT INTO x1(docid,a,b,c) VALUES(14, 'K H A B L', 'S R C C Z', 'D W E H J');
+  INSERT INTO x1(docid,a,b,c) VALUES(15, 'C E U C C', 'W F M N M', 'T Z U X T');
+  INSERT INTO x1(docid,a,b,c) VALUES(16, 'Q G C G H', 'H N N B H', 'B Q I H Y');
+  INSERT INTO x1(docid,a,b,c) VALUES(17, 'Q T S K B', 'W B D Y N', 'V J P E C');
+  INSERT INTO x1(docid,a,b,c) VALUES(18, 'A J M O Q', 'L G Y Y A', 'G N M R N');
+  INSERT INTO x1(docid,a,b,c) VALUES(19, 'T R Y P Y', 'N V Y B X', 'L Z T N T');
+
+  CREATE VIRTUAL TABLE x2 USING FTS4(a, b, c, order=DESC);
+  INSERT INTO x2(docid, a, b, c) SELECT docid, a, b, c FROM x1;
+}
+
+
+# Test queries.
+#
+foreach x {1 2} {
+  foreach {tn match res} {
+    1  "^K"              {0 1 14}
+    2  "^S"              {0 1 14}
+    3  "^W"              {9 15 17}
+    4  "^J"              {}
+    5  "^E"              {12}
+    6  "V ^-E"           {0 3 4 6 7 9 17 19}
+    7  "V -^E"           {0 3 4 6 7 9 17 19}
+    8  "^-E V"           {0 3 4 6 7 9 17 19}
+    9  "-^E V"           {0 3 4 6 7 9 17 19}
+    10 "V"               {0 3 4 6 7 9 12 17 19}
+
+    11 {"^K H"}          {0 14}
+    12 {"K H"}           {0 10 14}
+    13 {"K ^H"}          {}
+  } {
+    set rev [lreverse $res]
+    do_execsql_test 1.$x.$tn.1 {SELECT docid FROM x1 WHERE x1 MATCH $match} $res
+    do_execsql_test 1.$x.$tn.2 {SELECT docid FROM x2 WHERE x2 MATCH $match} $rev
+  }
+
+  do_execsql_test 1.$x.[expr $tn+1] { 
+    INSERT INTO x1(x1) VALUES('optimize');
+    INSERT INTO x2(x2) VALUES('optimize');
+  } {}
+}
+
+# Test the snippet() function.
+#
+foreach {tn match res} {
+  1  {^K}    {{[K] H D S T} {[K] N J L W} {[K] H A B L}}
+  2  {^X}    {{[X] Y D L S} {[X] J P K R} {[X] S B X Y}}
+  3  {^X Y}  {{[X] [Y] D L S} {D [Y] P O I...[X] J P K R} {[X] S B X [Y]}}
+} {
+  set rev [lreverse $res]
+
+  do_execsql_test 1.3.$tn.1 {
+    SELECT snippet(x1, '[', ']', '...') FROM x1 WHERE x1 MATCH $match
+  } $res
+
+  do_execsql_test 1.3.$tn.2 {
+    SELECT snippet(x2, '[', ']', '...') FROM x2 WHERE x2 MATCH $match
+  } $rev
+}
+
+# Test matchinfo().
+#
+foreach {tn match res} {
+  1  {^K}    {
+                {1 3 3 0 0 0 0 0 0}
+                {1 3 3 0 0 0 0 0 0}
+                {1 3 3 0 0 0 0 0 0}
+             }
+  2  {^X}    {
+                {0 1 1 0 1 1 1 2 2}
+                {0 1 1 1 1 1 0 2 2}
+                {1 1 1 0 1 1 1 2 2}
+             }
+  3  {^X Y}  {
+                {0 1 1 0 1 1 1 2 2 0 6 5 0 5 4 1 4 4} 
+                {0 1 1 1 1 1 0 2 2 1 6 5 0 5 4 0 4 4} 
+                {1 1 1 0 1 1 1 2 2 1 6 5 0 5 4 1 4 4}
+             }
+} {
+  set rev [lreverse $res]
+
+  do_execsql_test 1.3.$tn.1 {
+    SELECT mit(matchinfo(x1, 'x')) FROM x1 WHERE x1 MATCH $match
+  } $res
+  do_execsql_test 1.3.$tn.2 {
+    SELECT mit(matchinfo(x2, 'x')) FROM x2 WHERE x2 MATCH $match
+  } $rev
+}
+
+# Test that ^ is ignored for FTS3 tables.
+#
+do_execsql_test 2.1 {
+  CREATE VIRTUAL TABLE x3 USING fts3;
+  INSERT INTO x3 VALUES('A B C');
+  INSERT INTO x3 VALUES('B A C');
+
+  CREATE VIRTUAL TABLE x4 USING fts4;
+  INSERT INTO x4 VALUES('A B C');
+  INSERT INTO x4 VALUES('B A C');
+}
+
+do_execsql_test 2.2.1 {
+  SELECT * FROM x3 WHERE x3 MATCH '^A';
+} {{A B C} {B A C}}
+do_execsql_test 2.2.2 {
+  SELECT * FROM x4 WHERE x4 MATCH '^A';
+} {{A B C}}
+
+finish_test
diff --git a/test/fts3fuzz001.test b/test/fts3fuzz001.test
new file mode 100644
index 0000000000000000000000000000000000000000..6b1ae90ee40ff0f7773854419543460908530bff
--- /dev/null
+++ b/test/fts3fuzz001.test
@@ -0,0 +1,141 @@
+# 2012-12-21
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test cases for corrupt database files.
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix fts3fuzz001
+
+ifcapable !deserialize||!fts3 {
+  finish_test
+  return
+}
+database_may_be_corrupt
+
+do_test fts3fuzz001-100 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 24576 pagesize 4096 filename c6.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 06   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 05 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     96: 00 00 00 00 0d 0e f9 00 06 0d ec 00 0f cd 0f 69   ...............i
+|    112: 0f 01 0e 10 0e c6 0d ec 00 00 00 00 00 00 00 00   ................
+|   3552: 00 00 00 00 00 00 00 00 00 00 00 00 22 06 06 17   ............"...
+|   3568: 11 11 01 31 74 61 62 6c 65 74 32 74 32 06 43 52   ...1tablet2t2.CR
+|   3584: 45 41 54 45 20 54 41 42 4c 45 20 74 32 28 78 29   EATE TABLE t2(x)
+|   3600: 81 33 04 07 17 1f 1f 01 82 35 74 61 62 6c 65 74   .3.......5tablet
+|   3616: 31 5f 73 65 67 64 69 72 74 31 5f 73 65 67 64 69   1_segdirt1_segdi
+|   3632: 72 04 43 52 45 41 54 45 20 54 41 42 4c 45 20 27   r.CREATE TABLE '
+|   3648: 74 31 5f 73 65 67 64 69 72 27 28 6c 65 76 65 6c   t1_segdir'(level
+|   3664: 20 49 4e 54 45 47 45 52 2c 69 64 78 20 49 4e 54    INTEGER,idx INT
+|   3680: 45 47 45 52 2c 73 74 61 72 74 5f 62 6c 6f 63 6b   EGER,start_block
+|   3696: 20 49 4e 54 45 47 45 52 2c 6c 65 61 76 65 73 5f    INTEGER,leaves_
+|   3712: 65 6e 64 5f 62 6c 6f 63 6b 20 49 4e 54 45 47 45   end_block INTEGE
+|   3728: 52 2c 65 6e 64 5f 62 6c 6f 63 6b 20 49 4e 54 45   R,end_block INTE
+|   3744: 47 45 52 2c 72 6f 6f 74 20 42 4c 4f 42 2c 50 52   GER,root BLOB,PR
+|   3760: 49 4d 41 52 59 20 4b 45 59 28 6c 65 76 65 6c 2c   IMARY KEY(level,
+|   3776: 20 69 64 78 29 29 31 05 06 17 45 1f 01 00 69 6e    idx))1...E...in
+|   3792: 64 65 78 73 71 6c 69 74 65 5f 61 75 74 6f 69 6e   dexsqlite_autoin
+|   3808: 64 65 78 5f 74 15 f7 36 56 76 46 97 25 f3 17 43   dex_t..6VvF.%..C
+|   3824: 15 5f 73 65 67 64 69 72 05 00 00 00 08 00 00 00   ._segdir........
+|   3840: 00 66 03 07 17 23 23 01 81 13 74 61 62 6c 65 74   .f...##...tablet
+|   3856: 31 5f 73 65 67 6d 65 6e 74 73 74 31 5f 73 65 67   1_segmentst1_seg
+|   3872: 6d 65 6e 74 73 03 43 52 45 41 54 45 20 54 41 42   ments.CREATE TAB
+|   3888: 4c 45 20 27 74 31 5f 73 65 67 6d 65 6e 74 73 27   LE 't1_segments'
+|   3904: 28 62 6c 6f 63 6b 69 64 20 49 4e 54 45 47 45 52   (blockid INTEGER
+|   3920: 20 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 62 6c    PRIMARY KEY, bl
+|   3936: 6f 63 6b 20 42 4c 4f 42 29 62 02 07 17 21 21 01   ock BLOB)b...!!.
+|   3952: 81 0f 74 61 62 6c 65 74 31 5f 63 6f 6e 74 65 6e   ..tablet1_conten
+|   3968: 74 74 31 5f 63 6f 6e 74 65 6e 74 02 43 52 45 41   tt1_content.CREA
+|   3984: 54 45 20 54 41 42 4c 45 20 27 74 31 5f 63 6f 6e   TE TABLE 't1_con
+|   4000: 74 65 6e 74 27 28 64 6f 63 69 64 20 49 4e 54 45   tent'(docid INTE
+|   4016: 47 45 52 20 50 52 49 4d 41 52 59 20 4b 45 59 2c   GER PRIMARY KEY,
+|   4032: 20 27 63 30 63 6f 6e 74 65 6e 74 27 29 31 01 06    'c0content')1..
+|   4048: 17 11 11 08 51 74 61 62 6c 65 74 31 74 31 43 52   ....Qtablet1t1CR
+|   4064: 45 41 54 45 20 56 49 52 54 55 41 4c 20 54 41 42   EATE VIRTUAL TAB
+|   4080: 4c 45 20 74 31 20 55 53 49 4e 47 20 66 74 73 33   LE t1 USING fts3
+| page 2 offset 4096
+|      0: 0d 00 00 00 03 0f e0 00 0f f6 0f ec 0f e0 00 00   ................
+|   4064: 0a 03 03 00 1b 61 62 61 6e 64 6f 6e 08 02 03 00   .....abandon....
+|   4080: 17 61 62 61 66 74 08 01 03 00 17 61 62 61 63 6b   .abaft.....aback
+| page 3 offset 8192
+|      0: 0d 00 00 00 00 10 00 00 00 00 00 00 00 00 00 00   ................
+| page 4 offset 12288
+|      0: 0d 00 00 00 01 0f d6 00 0f 00 00 00 00 00 00 00   ................
+|   4048: 00 00 00 00 00 00 28 01 07 08 08 08 08 15 46 30   ......(.......F0
+|   4064: 20 32 39 00 05 61 62 61 63 6b 03 01 02 00 03 02    29..aback......
+|   4080: 66 74 03 02 02 00 03 04 6e 64 6f 6e 03 03 02 00   ft......ndon....
+| page 5 offset 16384
+|      0: 0a 00 00 00 01 0f fb 00 0f fb 00 00 00 00 00 00   ................
+|   4080: 00 00 00 00 00 00 00 00 00 00 00 04 04 08 08 09   ................
+| page 6 offset 20480
+|      0: 0d 00 00 00 05 0f b8 00 0f f4 0f e9 0f d6 0f c7   ................
+|     16: 0f b8 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|   4016: 00 00 00 00 00 00 00 00 0d 05 02 23 61 75 74 6f   ...........#auto
+|   4032: 6d 65 72 67 65 3d 35 0d 04 02 23 6d 65 72 67 65   merge=5...#merge
+|   4048: 3d 31 30 30 2c 38 11 03 02 2b 69 6e 74 65 67 72   =100,8...+integr
+|   4064: 69 74 79 3d 63 68 65 63 6b 09 02 02 1b 72 65 62   ity=check....reb
+|   4080: 75 69 6c 64 0a 01 02 1d 6f 70 74 69 6d 69 7a 65   uild....optimize
+| end c6.db
+  }]
+  catchsql {
+    PRAGMA writable_schema=on; -- disable schema corruption detection
+    INSERT INTO t1(t1) SELECT x FROM t2;
+  }
+} {1 {database disk image is malformed}}
+do_test fts3fuzz001-110 {
+  catchsql {
+    INSERT INTO t1(t1) VALUES('integrity-check');
+  }
+} {1 {database disk image is malformed}}
+do_test fts3fuzz001-120 {
+  catchsql {
+    INSERT INTO t1(t1) VALUES('optimize');
+  }
+} {1 {database disk image is malformed}}
+do_test fts3fuzz001-121 {
+  catchsql {
+    INSERT INTO t1(t1) VALUES('integrity-check');
+  }
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 200 {
+  CREATE VIRTUAL TABLE x1 USING fts3(x);
+
+  INSERT INTO x1 VALUES('braes brag bragged bragger bragging');
+  INSERT INTO x1 VALUES('brags braid braided braiding braids');
+  INSERT INTO x1 VALUES('brain brainchild brained braining brains');
+  INSERT INTO x1 VALUES('brainstem brainstems brainstorm brainstorms');
+  INSERT INTO x1(x1) VALUES('nodesize=24');
+}
+
+do_execsql_test 210 {
+  PRAGMA integrity_check;
+} {ok}
+
+do_execsql_test 220 {
+  INSERT INTO x1(x1) VALUES('merge=10,2')
+}
+
+do_execsql_test 220 {
+  PRAGMA integrity_check;
+} {ok}
+
+
+
+
+finish_test
diff --git a/test/fts3integrity.test b/test/fts3integrity.test
new file mode 100644
index 0000000000000000000000000000000000000000..bcbc49dc3370179a7da8b9849d41e6ff1c0dc07a
--- /dev/null
+++ b/test/fts3integrity.test
@@ -0,0 +1,42 @@
+# 2023 December 16
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file runs all tests.
+#
+# $Id: fts3.test,v 1.2 2008/07/23 18:17:32 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix fts3integrity
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+  
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts3(x);
+  INSERT INTO t1 VALUES('first row');
+  INSERT INTO t1 VALUES('second row');
+
+  CREATE TABLE t2(x PRIMARY KEY);
+  INSERT INTO t2 VALUES('first row');
+  INSERT INTO t2 VALUES('second row');
+}
+
+sqlite3 db2 test.db
+
+do_execsql_test -db db2 1.1 {
+  CREATE TABLE t3(x, y);
+}
+
+do_execsql_test 1.2 {
+  PRAGMA integrity_check;
+} {ok}
+
+finish_test
diff --git a/test/fts3join.test b/test/fts3join.test
new file mode 100644
index 0000000000000000000000000000000000000000..cbd08b63f293392500b79caee29ff181e1ffe35c
--- /dev/null
+++ b/test/fts3join.test
@@ -0,0 +1,107 @@
+# 2014 January 4
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS3 module.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix fts3join
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE ft1 USING fts4(x);
+  INSERT INTO ft1 VALUES('aaa aaa');
+  INSERT INTO ft1 VALUES('aaa bbb');
+  INSERT INTO ft1 VALUES('bbb aaa');
+  INSERT INTO ft1 VALUES('bbb bbb');
+
+  CREATE TABLE t1(id, y);
+  INSERT INTO t1 VALUES(1, 'aaa');
+  INSERT INTO t1 VALUES(2, 'bbb');
+}
+
+do_execsql_test 1.1 {
+  SELECT docid FROM ft1, t1 WHERE ft1 MATCH y AND id=1;
+} {1 2 3}
+
+do_execsql_test 1.2 {
+  SELECT docid FROM ft1, t1 WHERE ft1 MATCH y AND id=1 ORDER BY docid;
+} {1 2 3}
+
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE ft2 USING fts4(x);
+  CREATE VIRTUAL TABLE ft3 USING fts4(y);
+
+  INSERT INTO ft2 VALUES('abc');
+  INSERT INTO ft2 VALUES('def');
+  INSERT INTO ft3 VALUES('ghi');
+  INSERT INTO ft3 VALUES('abc');
+}
+
+do_execsql_test 2.1 { SELECT * FROM ft2, ft3 WHERE x MATCH y; } {abc abc}
+do_execsql_test 2.2 { SELECT * FROM ft2, ft3 WHERE y MATCH x; } {abc abc}
+do_execsql_test 2.3 { SELECT * FROM ft3, ft2 WHERE x MATCH y; } {abc abc}
+do_execsql_test 2.4 { SELECT * FROM ft3, ft2 WHERE y MATCH x; } {abc abc}
+
+do_catchsql_test 2.5 { 
+  SELECT * FROM ft3, ft2 WHERE y MATCH x AND x MATCH y; 
+} {1 {unable to use function MATCH in the requested context}}
+
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE vt USING fts3(x);
+  INSERT INTO vt VALUES('abc');
+  INSERT INTO vt VALUES('xyz');
+
+  CREATE TABLE tt(a INTEGER PRIMARY KEY);
+  INSERT INTO tt VALUES(1), (2);
+}
+
+do_execsql_test 3.1 {
+  SELECT * FROM tt LEFT JOIN (
+    SELECT rowid AS rrr, * FROM vt WHERE vt MATCH 'abc'
+  ) ON tt.a = rrr
+} {1 1 abc 2 {} {}}
+
+do_execsql_test 3.2 {
+  SELECT * FROM tt LEFT JOIN vt ON (vt MATCH 'abc')
+} {1 abc 2 abc}
+
+#-------------------------------------------------------------------------
+# Test that queries of the form found in test case 4.2 use an automatic
+# index to avoid running multiple fts queries.
+#
+do_execsql_test 4.1 {
+  CREATE VIRTUAL TABLE ft4 USING fts3(x);
+  CREATE TABLE t4(y, z);
+  CREATE INDEX t4y ON t1(y);
+}
+
+do_eqp_test 4.2 {
+  SELECT * FROM t4 LEFT JOIN (
+      SELECT docid, * FROM ft4 WHERE ft4 MATCH ?
+  ) AS rr ON t4.rowid=rr.docid 
+  WHERE t4.y = ?;
+} {
+  QUERY PLAN
+  |--MATERIALIZE rr
+  |  `--SCAN ft4 VIRTUAL TABLE INDEX 3:
+  |--SCAN t4
+  |--BLOOM FILTER ON rr (docid=?)
+  `--SEARCH rr USING AUTOMATIC COVERING INDEX (docid=?) LEFT-JOIN
+}
+
+finish_test
diff --git a/test/fts3malloc.test b/test/fts3malloc.test
new file mode 100644
index 0000000000000000000000000000000000000000..ed30fe24c8ab0928bae84471e7b8c9e2ad302d2b
--- /dev/null
+++ b/test/fts3malloc.test
@@ -0,0 +1,307 @@
+# 2009 October 22
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains tests to verify that malloc() errors that occur
+# within the FTS3 module code are handled correctly. 
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable !fts3 { finish_test ; return }
+source $testdir/malloc_common.tcl
+source $testdir/fts3_common.tcl
+
+# Ensure the lookaside buffer is disabled for these tests.
+#
+sqlite3 db test.db
+sqlite3_db_config_lookaside db 0 0 0
+
+set sqlite_fts3_enable_parentheses 1
+set DO_MALLOC_TEST 1
+
+# Test organization:
+#
+# fts3_malloc-1.*: Test OOM during CREATE and DROP table statements.
+# fts3_malloc-2.*: Test OOM during SELECT operations.
+# fts3_malloc-3.*: Test OOM during SELECT operations with a larger database.
+# fts3_malloc-4.*: Test OOM during database write operations.
+# fts3_malloc-5.*: Test that a couple of memory leaks that could follow
+#                  OOM in tokenizer code have been fixed.
+#
+
+
+proc normal_list {l} {
+  set ret [list]
+  foreach elem $l {lappend ret $elem}
+  set ret
+}
+
+do_write_test fts3_malloc-1.1 sqlite_master {
+  CREATE VIRTUAL TABLE ft1 USING fts3(a, b)
+}
+do_write_test fts3_malloc-1.2 sqlite_master {
+  CREATE VIRTUAL TABLE ft2 USING fts3([a], [b]);
+}
+do_write_test fts3_malloc-1.3 sqlite_master {
+  CREATE VIRTUAL TABLE ft3 USING fts3('a', "b");
+}
+do_write_test fts3_malloc-1.4 sqlite_master {
+  CREATE VIRTUAL TABLE ft4 USING fts3(`a`, 'fred''s column');
+}
+do_error_test fts3_malloc-1.5 {
+  CREATE VIRTUAL TABLE ft5 USING fts3(a, b, tokenize unknown)
+} {unknown tokenizer: unknown}
+do_write_test fts3_malloc-1.6 sqlite_master {
+  CREATE VIRTUAL TABLE ft6 USING fts3(a, b, tokenize porter)
+}
+do_write_test fts3_malloc-1.7 sqlite_master {
+  CREATE VIRTUAL TABLE ft7 USING fts4(a, b, notindexed=b)
+}
+
+# Test the xConnect/xDisconnect methods:
+#db eval { ATTACH 'test2.db' AS aux }
+#do_write_test fts3_malloc-1.6 aux.sqlite_master {
+#  CREATE VIRTUAL TABLE aux.ft7 USING fts3(a, b, c);
+#}
+#do_write_test fts3_malloc-1.6 aux.sqlite_master {
+#  CREATE VIRTUAL TABLE aux.ft7 USING fts3(a, b, c);
+#}
+
+
+
+do_test fts3_malloc-2.0 {
+  execsql { 
+    DROP TABLE ft1;
+    DROP TABLE ft2;
+    DROP TABLE ft3;
+    DROP TABLE ft4;
+    DROP TABLE ft6;
+    DROP TABLE ft7;
+  }
+  execsql { CREATE VIRTUAL TABLE ft USING fts3(a, b) }
+  for {set ii 1} {$ii < 32} {incr ii} {
+    set a [list]
+    set b [list]
+    if {$ii & 0x01} {lappend a one   ; lappend b neung}
+    if {$ii & 0x02} {lappend a two   ; lappend b song }
+    if {$ii & 0x04} {lappend a three ; lappend b sahm }
+    if {$ii & 0x08} {lappend a four  ; lappend b see  }
+    if {$ii & 0x10} {lappend a five  ; lappend b hah  }
+    execsql { INSERT INTO ft VALUES($a, $b) }
+  }
+} {}
+
+foreach {tn sql result} {
+  1 "SELECT count(*) FROM sqlite_master" {5}
+  2 "SELECT * FROM ft WHERE docid = 1"   {one neung}
+  3 "SELECT * FROM ft WHERE docid = 2"   {two song}
+  4 "SELECT * FROM ft WHERE docid = 3"   {{one two} {neung song}}
+
+  5 "SELECT a FROM ft" {
+    {one}                     {two}                 {one two}
+    {three}                   {one three}           {two three}     
+    {one two three}           {four}                {one four} 
+    {two four}                {one two four}        {three four}   
+    {one three four}          {two three four}      {one two three four}  
+    {five}                    {one five}            {two five}            
+    {one two five}            {three five}          {one three five} 
+    {two three five}          {one two three five}  {four five}
+    {one four five}           {two four five}       {one two four five}
+    {three four five}         {one three four five} {two three four five}
+    {one two three four five}
+  }
+
+  6 "SELECT a FROM ft WHERE a MATCH 'one'" {
+    {one} {one two} {one three} {one two three}
+    {one four} {one two four} {one three four} {one two three four}
+    {one five} {one two five} {one three five} {one two three five}
+    {one four five} {one two four five} 
+    {one three four five} {one two three four five}
+  }
+
+  7 "SELECT a FROM ft WHERE a MATCH 'o*'" {
+    {one} {one two} {one three} {one two three}
+    {one four} {one two four} {one three four} {one two three four}
+    {one five} {one two five} {one three five} {one two three five}
+    {one four five} {one two four five} 
+    {one three four five} {one two three four five}
+  }
+
+  8 "SELECT a FROM ft WHERE a MATCH 'o* t*'" {
+    {one two}             {one three}           {one two three} 
+    {one two four}        {one three four}      {one two three four} 
+    {one two five}        {one three five}      {one two three five} 
+    {one two four five}   {one three four five} {one two three four five}
+  }
+
+  9 "SELECT a FROM ft WHERE a MATCH '\"o* t*\"'" {
+    {one two}             {one three}           {one two three} 
+    {one two four}        {one three four}      {one two three four} 
+    {one two five}        {one three five}      {one two three five} 
+    {one two four five}   {one three four five} {one two three four five}
+  }
+
+  10 {SELECT a FROM ft WHERE a MATCH '"o* f*"'} {
+    {one four}            {one five}            {one four five}
+  }
+
+  11 {SELECT a FROM ft WHERE a MATCH '"one two three"'} {
+    {one two three}
+    {one two three four}  
+    {one two three five}
+    {one two three four five}
+  }
+
+  12 {SELECT a FROM ft WHERE a MATCH '"two three four"'} {
+    {two three four}
+    {one two three four}
+    {two three four five}
+    {one two three four five}
+  }
+
+  12 {SELECT a FROM ft WHERE a MATCH '"two three" five'} {
+    {two three five}         {one two three five}
+    {two three four five}    {one two three four five}
+  }
+
+  13 {SELECT a FROM ft WHERE ft MATCH '"song sahm" hah'} {
+    {two three five}         {one two three five}
+    {two three four five}    {one two three four five}
+  }
+
+  14 {SELECT a FROM ft WHERE b MATCH 'neung'} {
+    {one}                    {one two} 
+    {one three}              {one two three}
+    {one four}               {one two four} 
+    {one three four}         {one two three four}
+    {one five}               {one two five} 
+    {one three five}         {one two three five}
+    {one four five}          {one two four five} 
+    {one three four five}    {one two three four five}
+  }
+
+  15 {SELECT a FROM ft WHERE b MATCH '"neung song sahm"'} {
+    {one two three}          {one two three four}  
+    {one two three five}     {one two three four five}
+  }
+
+  16 {SELECT a FROM ft WHERE b MATCH 'hah "song sahm"'} {
+    {two three five}         {one two three five}
+    {two three four five}    {one two three four five}
+  }
+
+  17 {SELECT a FROM ft WHERE b MATCH 'song OR sahm'} {
+    {two}                     {one two}             {three}
+    {one three}               {two three}           {one two three}
+    {two four}                {one two four}        {three four}   
+    {one three four}          {two three four}      {one two three four}  
+    {two five}                {one two five}        {three five}
+    {one three five}          {two three five}      {one two three five}
+    {two four five}           {one two four five}   {three four five}
+    {one three four five}     {two three four five} {one two three four five}
+  }
+
+  18 {SELECT a FROM ft WHERE a MATCH 'three NOT two'} {
+    {three}                   {one three}           {three four}   
+    {one three four}          {three five}          {one three five}
+    {three four five}         {one three four five}
+  }
+
+  19 {SELECT a FROM ft WHERE b MATCH 'sahm NOT song'} {
+    {three}                   {one three}           {three four}   
+    {one three four}          {three five}          {one three five}
+    {three four five}         {one three four five}
+  }
+
+  20 {SELECT a FROM ft WHERE ft MATCH 'sahm NOT song'} {
+    {three}                   {one three}           {three four}   
+    {one three four}          {three five}          {one three five}
+    {three four five}         {one three four five}
+  }
+
+  21 {SELECT a FROM ft WHERE b MATCH 'neung NEAR song NEAR sahm'} {
+    {one two three}           {one two three four}  
+    {one two three five}      {one two three four five}
+  }
+
+} {
+  set result [normal_list $result]
+  do_select_test fts3_malloc-2.$tn $sql $result
+}
+
+do_test fts3_malloc-3.0 {
+  execsql BEGIN
+  for {set ii 32} {$ii < 1024} {incr ii} {
+    set a [list]
+    set b [list]
+    if {$ii & 0x0001} {lappend a one   ; lappend b neung }
+    if {$ii & 0x0002} {lappend a two   ; lappend b song  }
+    if {$ii & 0x0004} {lappend a three ; lappend b sahm  }
+    if {$ii & 0x0008} {lappend a four  ; lappend b see   }
+    if {$ii & 0x0010} {lappend a five  ; lappend b hah   }
+    if {$ii & 0x0020} {lappend a six   ; lappend b hok   }
+    if {$ii & 0x0040} {lappend a seven ; lappend b jet   }
+    if {$ii & 0x0080} {lappend a eight ; lappend b bairt }
+    if {$ii & 0x0100} {lappend a nine  ; lappend b gow   }
+    if {$ii & 0x0200} {lappend a ten   ; lappend b sip   }
+    execsql { INSERT INTO ft VALUES($a, $b) }
+  }
+  execsql COMMIT
+} {}
+foreach {tn sql result} {
+  1 "SELECT count(*) FROM ft" {1023}
+
+  2 "SELECT a FROM ft WHERE a MATCH 'one two three four five six seven eight'" {
+     {one two three four five six seven eight}
+     {one two three four five six seven eight nine}
+     {one two three four five six seven eight ten}
+     {one two three four five six seven eight nine ten}
+  }
+
+  3 {SELECT count(*), sum(docid) FROM ft WHERE a MATCH 'o*'} {
+    512 262144
+  }
+
+  4 {SELECT count(*), sum(docid) FROM ft WHERE a MATCH '"two three four"'} {
+    128 66368
+  }
+} {
+  set result [normal_list $result]
+  do_select_test fts3_malloc-3.$tn $sql $result
+}
+
+do_test fts3_malloc-4.0 {
+  execsql { DELETE FROM ft WHERE docid>=32 }
+} {}
+foreach {tn sql} {
+  1 "DELETE FROM ft WHERE ft MATCH 'one'"
+  2 "DELETE FROM ft WHERE ft MATCH 'three'"
+  3 "DELETE FROM ft WHERE ft MATCH 'five'"
+} {
+  do_write_test fts3_malloc-4.1.$tn ft_content $sql
+}
+do_test fts3_malloc-4.2 {
+  execsql { SELECT a FROM ft }
+} {two four {two four}}
+
+do_write_test fts3_malloc-5.1 ft_content {
+  INSERT INTO ft VALUES('short alongertoken reallyquitealotlongerimeanit andthistokenisjustsolongthatonemightbeforgivenforimaginingthatitwasmerelyacontrivedexampleandnotarealtoken', 'cynics!')
+}
+do_test fts3_malloc-5.2 {
+  execsql { CREATE VIRTUAL TABLE ft8 USING fts3(x, tokenize porter) }
+} {}
+
+do_write_test fts3_malloc-5.3 ft_content {
+  INSERT INTO ft8 VALUES('short alongertoken reallyquitealotlongerimeanit andthistokenisjustsolongthatonemightbeforgivenforimaginingthatitwasmerelyacontrivedexampleandnotarealtoken')
+}
+
+
+finish_test
diff --git a/test/fts3matchinfo.test b/test/fts3matchinfo.test
new file mode 100644
index 0000000000000000000000000000000000000000..af0b1cdc0db3f2d84556d505ecfda3fbcce0ed56
--- /dev/null
+++ b/test/fts3matchinfo.test
@@ -0,0 +1,556 @@
+# 2010 November 02
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for the FTS3 module. The focus
+# of this file is tables created with the "matchinfo=fts3" option.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If SQLITE_ENABLE_FTS3 is not defined, omit this file.
+ifcapable !fts3 { finish_test ; return }
+
+set testprefix fts3matchinfo
+set sqlite_fts3_enable_parentheses 0
+
+proc mit {blob} {
+  set scan(littleEndian) i*
+  set scan(bigEndian) I*
+  binary scan $blob $scan($::tcl_platform(byteOrder)) r
+  return $r
+}
+db func mit mit
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts4(matchinfo=fts3);
+  SELECT name FROM sqlite_master WHERE type = 'table';
+} {t1 t1_content t1_segments t1_segdir t1_stat}
+
+do_execsql_test 1.1 {
+  INSERT INTO t1(content) VALUES('I wandered lonely as a cloud');
+  INSERT INTO t1(content) VALUES('That floats on high o''er vales and hills,');
+  INSERT INTO t1(content) VALUES('When all at once I saw a crowd,');
+  INSERT INTO t1(content) VALUES('A host, of golden daffodils,');
+  SELECT mit(matchinfo(t1)) FROM t1 WHERE t1 MATCH 'I';
+} {{1 1 1 2 2} {1 1 1 2 2}}
+
+# Now create an FTS4 table that does not specify matchinfo=fts3.
+#
+do_execsql_test 1.2 {
+  CREATE VIRTUAL TABLE t2 USING fts4;
+  INSERT INTO t2 SELECT * FROM t1;
+  SELECT mit(matchinfo(t2)) FROM t2 WHERE t2 MATCH 'I';
+} {{1 1 1 2 2} {1 1 1 2 2}}
+
+# Test some syntax-error handling.
+#
+do_catchsql_test 2.0 {
+  CREATE VIRTUAL TABLE x1 USING fts4(matchinfo=fs3);
+} {1 {unrecognized matchinfo: fs3}}
+do_catchsql_test 2.1 {
+  CREATE VIRTUAL TABLE x2 USING fts4(mtchinfo=fts3);
+} {1 {unrecognized parameter: mtchinfo=fts3}}
+do_catchsql_test 2.2 {
+  CREATE VIRTUAL TABLE x2 USING fts4(matchinfo=fts5);
+} {1 {unrecognized matchinfo: fts5}}
+
+# Check that with fts3, the "=" character is permitted in column definitions.
+#
+do_execsql_test 3.1 {
+  CREATE VIRTUAL TABLE t3 USING fts3(mtchinfo=fts3);
+  INSERT INTO t3(mtchinfo) VALUES('Beside the lake, beneath the trees');
+  SELECT mtchinfo FROM t3;
+} {{Beside the lake, beneath the trees}}
+
+do_execsql_test 3.2 {
+  CREATE VIRTUAL TABLE xx USING FTS4;
+}
+do_execsql_test 3.3 {
+  SELECT * FROM xx WHERE xx MATCH 'abc';
+}
+do_execsql_test 3.4 {
+  SELECT * FROM xx WHERE xx MATCH 'a b c';
+}
+
+
+#--------------------------------------------------------------------------
+# Proc [do_matchinfo_test] is used to test the FTSX matchinfo() function.
+#
+# The first argument - $tn - is a test identifier. This may be either a
+# full identifier (i.e. "fts3matchinfo-1.1") or, if global var $testprefix
+# is set, just the numeric component (i.e. "1.1").
+#
+# The second argument is the name of an FTSX table. The third is the 
+# full text of a WHERE/MATCH expression to query the table for 
+# (i.e. "t1 MATCH 'abc'"). The final argument - $results - should be a
+# key-value list (serialized array) with matchinfo() format specifiers
+# as keys, and the results of executing the statement:
+#
+#   SELECT matchinfo($tbl, '$key') FROM $tbl WHERE $expr
+#
+# For example:
+#
+#   CREATE VIRTUAL TABLE t1 USING fts4;
+#   INSERT INTO t1 VALUES('abc');
+#   INSERT INTO t1 VALUES('def');
+#   INSERT INTO t1 VALUES('abc abc');
+#
+#   do_matchinfo_test 1.1 t1 "t1 MATCH 'abc'" {
+#     n {3 3}
+#     p {1 1}
+#     c {1 1}
+#     x {{1 3 2} {2 3 2}}
+#   }
+#
+# If the $results list contains keys mapped to "-" instead of a matchinfo()
+# result, then this command computes the expected results based on other
+# mappings to test the matchinfo() function. For example, the command above
+# could be changed to:
+#
+#   do_matchinfo_test 1.1 t1 "t1 MATCH 'abc'" {
+#     n {3 3} p {1 1} c {1 1} x {{1 3 2} {2 3 2}}
+#     pcx -
+#   }
+#
+# And this command would compute the expected results for matchinfo(t1, 'pcx')
+# based on the results of matchinfo(t1, 'p'), matchinfo(t1, 'c') and 
+# matchinfo(t1, 'x') in order to test 'pcx'.
+#
+proc do_matchinfo_test {tn tbl expr results} {
+
+  foreach {fmt res} $results {
+    if {$res == "-"} continue
+    set resarray($fmt) $res
+  }
+
+  set nRow 0
+  foreach {fmt res} [array get resarray] {
+    if {[llength $res]>$nRow} { set nRow [llength $res] }
+  }
+
+  # Construct expected results for any formats for which the caller 
+  # supplied result is "-".
+  #
+  foreach {fmt res} $results {
+    if {$res == "-"} {
+      set res [list]
+      for {set iRow 0} {$iRow<$nRow} {incr iRow} {
+        set rowres [list]
+        foreach c [split $fmt ""] {
+          set rowres [concat $rowres [lindex $resarray($c) $iRow]]
+        }
+        lappend res $rowres
+      }
+      set resarray($fmt) $res
+    }
+  }
+
+  # Test each matchinfo() request individually.
+  #
+  foreach {fmt res} [array get resarray] {
+    set sql "SELECT mit(matchinfo($tbl, '$fmt')) FROM $tbl WHERE $expr"
+    do_execsql_test $tn.$fmt $sql [normalize2 $res]
+  }
+
+  # Test them all executed together (multiple invocations of matchinfo()).
+  #
+  set exprlist [list]
+  foreach {format res} [array get resarray] {
+    lappend exprlist "mit(matchinfo($tbl, '$format'))"
+  }
+  set allres [list]
+  for {set iRow 0} {$iRow<$nRow} {incr iRow} {
+    foreach {format res} [array get resarray] {
+      lappend allres [lindex $res $iRow]
+    }
+  }
+  set sql "SELECT [join $exprlist ,] FROM $tbl WHERE $expr"
+  do_execsql_test $tn.multi $sql [normalize2 $allres]
+}
+proc normalize2 {list_of_lists} {
+  set res [list]
+  foreach elem $list_of_lists {
+    lappend res [list {*}$elem]
+  }
+  return $res
+}
+
+
+do_execsql_test 4.1.0 {
+  CREATE VIRTUAL TABLE t4 USING fts4(x, y);
+  INSERT INTO t4 VALUES('a b c d e', 'f g h i j');
+  INSERT INTO t4 VALUES('f g h i j', 'a b c d e');
+}
+
+do_matchinfo_test 4.1.1 t4 {t4 MATCH 'a b c'} {
+  p {3 3}
+  c {2 2}
+  x {
+    {1 1 1   0 1 1   1 1 1   0 1 1   1 1 1   0 1 1}
+    {0 1 1   1 1 1   0 1 1   1 1 1   0 1 1   1 1 1}
+  }
+  n {2 2}
+  l {{5 5} {5 5}}
+  a {{5 5} {5 5}}
+
+  s {{3 0} {0 3}}
+
+  xxxxxxxxxxxxxxxxxx - pcx - xpc - ccc - pppxpcpcx - laxnpc -
+  xpxsscplax -
+}
+
+do_matchinfo_test 4.1.2 t4 {t4 MATCH '"g h i"'} {
+  p {1 1}
+  c {2 2}
+  x {
+    {0 1 1   1 1 1}
+    {1 1 1   0 1 1}
+  }
+  n {2 2}
+  l {{5 5} {5 5}}
+  a {{5 5} {5 5}}
+
+  s {{0 1} {1 0}}
+
+  xxxxxxxxxxxxxxxxxx - pcx - xpc - ccc - pppxpcpcx - laxnpc -
+  sxsxs -
+}
+
+do_matchinfo_test 4.1.3 t4 {t4 MATCH 'a b'}     { s {{2 0} {0 2}} }
+do_matchinfo_test 4.1.4 t4 {t4 MATCH '"a b" c'} { s {{2 0} {0 2}} }
+do_matchinfo_test 4.1.5 t4 {t4 MATCH 'a "b c"'} { s {{2 0} {0 2}} }
+do_matchinfo_test 4.1.6 t4 {t4 MATCH 'd d'}     { s {{1 0} {0 1}} }
+do_matchinfo_test 4.1.7 t4 {t4 MATCH 'f OR abcd'} {
+  x { 
+    {0 1 1  1 1 1  0 0 0  0 0 0} 
+    {1 1 1  0 1 1  0 0 0  0 0 0}
+  }
+}
+do_matchinfo_test 4.1.8 t4 {t4 MATCH 'f -abcd'} {
+  x { 
+    {0 1 1  1 1 1}
+    {1 1 1  0 1 1}
+  }
+}
+
+do_execsql_test 4.2.0 {
+  CREATE VIRTUAL TABLE t5 USING fts4;
+  INSERT INTO t5 VALUES('a a a a a');
+  INSERT INTO t5 VALUES('a b a b a');
+  INSERT INTO t5 VALUES('c b c b c');
+  INSERT INTO t5 VALUES('x x x x x');
+}
+do_matchinfo_test 4.2.1 t5 {t5 MATCH 'a a'}         { 
+  x {{5 8 2   5 8 2} {3 8 2   3 8 2}}
+  s {2 1} 
+}
+do_matchinfo_test 4.2.2 t5 {t5 MATCH 'a b'}         { s {2} }
+do_matchinfo_test 4.2.3 t5 {t5 MATCH 'a b a'}       { s {3} }
+do_matchinfo_test 4.2.4 t5 {t5 MATCH 'a a a'}       { s {3 1} }
+do_matchinfo_test 4.2.5 t5 {t5 MATCH '"a b" "a b"'} { s {2} }
+do_matchinfo_test 4.2.6 t5 {t5 MATCH 'a OR b'}      { s {1 2 1} }
+
+do_execsql_test 4.3.0 "INSERT INTO t5 VALUES('x y [string repeat {b } 50000]')";
+
+# It used to be that the second 'a' token would be deferred. That doesn't
+# work any longer.
+if 0 {
+  do_matchinfo_test 4.3.1 t5 {t5 MATCH 'a a'} { 
+    x {{5 8 2   5 5 5} {3 8 2   3 5 5}}
+    s {2 1} 
+  }
+}
+
+do_matchinfo_test 4.3.2 t5 {t5 MATCH 'a b'}         { s {2} }
+do_matchinfo_test 4.3.3 t5 {t5 MATCH 'a b a'}       { s {3} }
+do_matchinfo_test 4.3.4 t5 {t5 MATCH 'a a a'}       { s {3 1} }
+do_matchinfo_test 4.3.5 t5 {t5 MATCH '"a b" "a b"'} { s {2} }
+do_matchinfo_test 4.3.6 t5 {t5 MATCH 'a OR b'}      { s {1 2 1 1} }
+
+do_execsql_test 4.4.0.1 { INSERT INTO t5(t5) VALUES('optimize') }
+
+ifcapable fts4_deferred {
+  sqlite3_db_config db DEFENSIVE 0
+  do_execsql_test 4.4.0.2 {
+    UPDATE t5_segments 
+    SET block = zeroblob(length(block)) 
+    WHERE length(block)>10000;
+  }
+}
+
+do_matchinfo_test 4.4.2 t5 {t5 MATCH 'a b'}         { s {2} }
+do_matchinfo_test 4.4.1 t5 {t5 MATCH 'a a'}         { s {2 1} }
+do_matchinfo_test 4.4.2 t5 {t5 MATCH 'a b'}         { s {2} }
+do_matchinfo_test 4.4.3 t5 {t5 MATCH 'a b a'}       { s {3} }
+do_matchinfo_test 4.4.4 t5 {t5 MATCH 'a a a'}       { s {3 1} }
+do_matchinfo_test 4.4.5 t5 {t5 MATCH '"a b" "a b"'} { s {2} }
+
+do_execsql_test 4.5.0 {
+  CREATE VIRTUAL TABLE t6 USING fts4(a, b, c);
+  INSERT INTO t6 VALUES('a', 'b', 'c');
+}
+do_matchinfo_test 4.5.1 t6 {t6 MATCH 'a b c'}       { s {{1 1 1}} }
+
+
+#-------------------------------------------------------------------------
+# Check the following restrictions:
+#
+#   + Matchinfo flags 'a', 'l' and 'n' can only be used with fts4, not fts3.
+#   + Matchinfo flag 'l' cannot be used with matchinfo=fts3.
+#
+do_execsql_test 5.1 {
+  CREATE VIRTUAL TABLE t7 USING fts3(a, b);
+  INSERT INTO t7 VALUES('u v w', 'x y z');
+
+  CREATE VIRTUAL TABLE t8 USING fts4(a, b, matchinfo=fts3);
+  INSERT INTO t8 VALUES('u v w', 'x y z');
+}
+
+do_catchsql_test 5.2.1 { 
+  SELECT matchinfo(t7, 'a') FROM t7 WHERE t7 MATCH 'x y'
+} {1 {unrecognized matchinfo request: a}}
+do_catchsql_test 5.2.2 { 
+  SELECT matchinfo(t7, 'l') FROM t7 WHERE t7 MATCH 'x y'
+} {1 {unrecognized matchinfo request: l}}
+do_catchsql_test 5.2.3 { 
+  SELECT matchinfo(t7, 'n') FROM t7 WHERE t7 MATCH 'x y'
+} {1 {unrecognized matchinfo request: n}}
+
+do_catchsql_test 5.3.1 { 
+  SELECT matchinfo(t8, 'l') FROM t8 WHERE t8 MATCH 'x y'
+} {1 {unrecognized matchinfo request: l}}
+
+#-------------------------------------------------------------------------
+# Test that the offsets() function handles corruption in the %_content
+# table correctly.
+#
+do_execsql_test 6.1 {
+  CREATE VIRTUAL TABLE t9 USING fts4;
+  INSERT INTO t9 VALUES(
+    'this record is used to try to dectect corruption'
+  );
+  SELECT offsets(t9) FROM t9 WHERE t9 MATCH 'to';
+} {{0 0 20 2 0 0 27 2}}
+
+sqlite3_db_config db DEFENSIVE 0
+do_catchsql_test 6.2 {
+  UPDATE t9_content SET c0content = 'this record is used to'; 
+  SELECT offsets(t9) FROM t9 WHERE t9 MATCH 'to';
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+# Test the outcome of matchinfo() when used within a query that does not
+# use the full-text index (i.e. lookup by rowid or full-table scan).
+#
+do_execsql_test 7.1 {
+  CREATE VIRTUAL TABLE t10 USING fts4;
+  INSERT INTO t10 VALUES('first record');
+  INSERT INTO t10 VALUES('second record');
+}
+do_execsql_test 7.2 {
+  SELECT typeof(matchinfo(t10)), length(matchinfo(t10)) FROM t10;
+} {blob 0 blob 0}
+do_execsql_test 7.3 {
+  SELECT typeof(matchinfo(t10)), length(matchinfo(t10)) FROM t10 WHERE docid=1;
+} {blob 0}
+do_execsql_test 7.4 {
+  SELECT typeof(matchinfo(t10)), length(matchinfo(t10)) 
+  FROM t10 WHERE t10 MATCH 'record'
+} {blob 20 blob 20}
+
+#-------------------------------------------------------------------------
+# Test a special case - matchinfo('nxa') with many zero length documents. 
+# Special because "x" internally uses a statement used by both "n" and "a". 
+# This was causing a problem at one point in the obscure case where the
+# total number of bytes of data stored in an fts3 table was greater than
+# the number of rows. i.e. when the following query returns true:
+#
+#   SELECT sum(length(content)) < count(*) FROM fts4table;
+#
+do_execsql_test 8.1 {
+  CREATE VIRTUAL TABLE t11 USING fts4;
+  INSERT INTO t11(t11) VALUES('nodesize=24');
+  INSERT INTO t11 VALUES('quitealongstringoftext');
+  INSERT INTO t11 VALUES('anotherquitealongstringoftext');
+  INSERT INTO t11 VALUES('athirdlongstringoftext');
+  INSERT INTO t11 VALUES('andonemoreforgoodluck');
+}
+do_test 8.2 {
+  for {set i 0} {$i < 200} {incr i} {
+    execsql { INSERT INTO t11 VALUES('') }
+  }
+  execsql { INSERT INTO t11(t11) VALUES('optimize') }
+} {}
+do_execsql_test 8.3 {
+  SELECT mit(matchinfo(t11, 'nxa')) FROM t11 WHERE t11 MATCH 'a*'
+} {{204 1 3 3 0} {204 1 3 3 0} {204 1 3 3 0}}
+
+# Corruption related tests.
+sqlite3_db_config db DEFENSIVE 0
+do_execsql_test  8.4.1.1 { UPDATE t11_stat SET value = X'0000'; }
+do_catchsql_test 8.5.1.2 {
+  SELECT mit(matchinfo(t11, 'nxa')) FROM t11 WHERE t11 MATCH 'a*'
+} {1 {database disk image is malformed}}
+
+do_execsql_test  8.4.2.1 { UPDATE t11_stat SET value = X'00'; }
+do_catchsql_test 8.5.2.2 {
+  SELECT mit(matchinfo(t11, 'nxa')) FROM t11 WHERE t11 MATCH 'a*'
+} {1 {database disk image is malformed}}
+
+do_execsql_test  8.4.3.1 { UPDATE t11_stat SET value = NULL; }
+do_catchsql_test 8.5.3.2 {
+  SELECT mit(matchinfo(t11, 'nxa')) FROM t11 WHERE t11 MATCH 'a*'
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+do_execsql_test 8.1 {
+  CREATE VIRTUAL TABLE t12 USING fts4;
+  INSERT INTO t12 VALUES('a b c d');
+  SELECT mit(matchinfo(t12, 'x')) FROM t12 WHERE t12 MATCH 'a NEAR/1 d OR a';
+} {{0 0 0 0 0 0 1 1 1}}
+do_execsql_test 8.2 {
+  INSERT INTO t12 VALUES('a d c d');
+  SELECT mit(matchinfo(t12, 'x')) FROM t12 WHERE t12 MATCH 'a NEAR/1 d OR a';
+} {
+  {0 1 1 0 1 1 1 2 2} {1 1 1 1 1 1 1 2 2}
+}
+do_execsql_test 8.3 {
+  INSERT INTO t12 VALUES('a d d a');
+  SELECT mit(matchinfo(t12, 'x')) FROM t12 WHERE t12 MATCH 'a NEAR/1 d OR a';
+} {
+  {0 3 2 0 3 2 1 4 3} {1 3 2 1 3 2 1 4 3} {2 3 2 2 3 2 2 4 3}
+}
+
+do_execsql_test 9.1 {
+  CREATE VIRTUAL TABLE ft2 USING fts4;
+  INSERT INTO ft2 VALUES('a b c d e');
+  INSERT INTO ft2 VALUES('f a b c d');
+  SELECT snippet(ft2, '[', ']', '', -1, 1) FROM ft2 WHERE ft2 MATCH 'c';
+} {{[c]} {[c]}}
+
+#---------------------------------------------------------------------------
+# Test for a memory leak
+#
+do_execsql_test 10.1 {
+  DROP TABLE t10;
+  CREATE VIRTUAL TABLE t10 USING fts4(idx, value);
+  INSERT INTO t10 values (1, 'one'),(2, 'two'),(3, 'three');
+  SELECT docId, t10.*
+    FROM t10
+    JOIN (SELECT 1 AS idx UNION SELECT 2 UNION SELECT 3) AS x
+   WHERE t10 MATCH x.idx
+     AND matchinfo(t10) not null
+   GROUP BY docId
+   ORDER BY 1;
+} {1 1 one 2 2 two 3 3 three}
+  
+#---------------------------------------------------------------------------
+# Test the 'y' matchinfo flag
+#
+set sqlite_fts3_enable_parentheses 1
+reset_db
+do_execsql_test 11.0 {
+  CREATE VIRTUAL TABLE tt USING fts3(x, y);
+  INSERT INTO tt VALUES('c d a c d d', 'e a g b d a');   -- 1
+  INSERT INTO tt VALUES('c c g a e b', 'c g d g e c');   -- 2
+  INSERT INTO tt VALUES('b e f d e g', 'b a c b c g');   -- 3
+  INSERT INTO tt VALUES('a c f f g d', 'd b f d e g');   -- 4
+  INSERT INTO tt VALUES('g a c f c f', 'd g g b c c');   -- 5
+  INSERT INTO tt VALUES('g a c e b b', 'd b f b g g');   -- 6
+  INSERT INTO tt VALUES('f d a a f c', 'e e a d c f');   -- 7
+  INSERT INTO tt VALUES('a c b b g f', 'a b a e d f');   -- 8
+  INSERT INTO tt VALUES('b a f e c c', 'f d b b a b');   -- 9
+  INSERT INTO tt VALUES('f d c e a c', 'f a f a a f');   -- 10
+}
+
+db func mit mit
+foreach {tn expr res} {
+  1 "a" {
+      1 {1 2}   2 {1 0}   3 {0 1}   4 {1 0}   5 {1 0}
+      6 {1 0}   7 {2 1}   8 {1 2}   9 {1 1}  10 {1 3}
+  }
+
+  2 "b" {
+      1 {0 1}   2 {1 0}   3 {1 2}   4 {0 1}   5 {0 1}
+      6 {2 2}             8 {2 1}   9 {1 3}            
+  }
+
+  3 "y:a" {
+      1 {0 2}             3 {0 1}                    
+                7 {0 1}   8 {0 2}   9 {0 1}  10 {0 3}
+  }
+
+  4 "x:a" {
+      1 {1 0}   2 {1 0}             4 {1 0}   5 {1 0}
+      6 {1 0}   7 {2 0}   8 {1 0}   9 {1 0}  10 {1 0}
+  }
+
+  5 "a OR b" {
+      1 {1 2 0 1}   2 {1 0 1 0}   3 {0 1 1 2}   4 {1 0 0 1}   5 {1 0 0 1}
+      6 {1 0 2 2}   7 {2 1 0 0}   8 {1 2 2 1}   9 {1 1 1 3}  10 {1 3 0 0}
+  }
+
+  6 "a AND b" {
+      1 {1 2 0 1}   2 {1 0 1 0}   3 {0 1 1 2}   4 {1 0 0 1}   5 {1 0 0 1}
+      6 {1 0 2 2}                 8 {1 2 2 1}   9 {1 1 1 3}              
+  }
+
+  7 "a OR (a AND b)" {
+      1 {1 2 1 2 0 1}   2 {1 0 1 0 1 0}   3 {0 1 0 1 1 2}   4 {1 0 1 0 0 1}   
+      5 {1 0 1 0 0 1}   6 {1 0 1 0 2 2}   7 {2 1 0 0 0 0}   8 {1 2 1 2 2 1}   
+      9 {1 1 1 1 1 3}  10 {1 3 0 0 0 0}
+  }
+
+} {
+  do_execsql_test 11.1.$tn.1  {
+    SELECT rowid, mit(matchinfo(tt, 'y')) FROM tt WHERE tt MATCH $expr
+  } $res
+
+  set r2 [list]
+  foreach {rowid L} $res {
+    lappend r2 $rowid
+    set M [list]
+    foreach {a b} $L {
+      lappend M [expr ($a ? 1 : 0) + ($b ? 2 : 0)]
+    }
+    lappend r2 $M
+  }
+
+  do_execsql_test 11.1.$tn.2  {
+    SELECT rowid, mit(matchinfo(tt, 'b')) FROM tt WHERE tt MATCH $expr
+  } $r2
+
+  do_execsql_test 11.1.$tn.2  {
+    SELECT rowid, mit(matchinfo(tt, 'b')) FROM tt WHERE tt MATCH $expr
+  } $r2
+}
+set sqlite_fts3_enable_parentheses 0
+
+#---------------------------------------------------------------------------
+# Test the 'b' matchinfo flag
+#
+set sqlite_fts3_enable_parentheses 1
+reset_db
+db func mit mit
+
+do_test 12.0 {
+  set cols [list]
+  for {set i 0} {$i < 50} {incr i} { lappend cols "c$i" }
+  execsql "CREATE VIRTUAL TABLE tt USING fts3([join $cols ,])"
+} {}
+
+do_execsql_test 12.1 {
+  INSERT INTO tt (rowid, c4, c45) VALUES(1, 'abc', 'abc');
+  SELECT mit(matchinfo(tt, 'b')) FROM tt WHERE tt MATCH 'abc';
+} [list [list [expr 1<<4] [expr 1<<(45-32)]]]
+
+set sqlite_fts3_enable_parentheses 0
+finish_test
diff --git a/test/fts3matchinfo2.test b/test/fts3matchinfo2.test
new file mode 100644
index 0000000000000000000000000000000000000000..670e1079f114feb97d6895402fc2ccee5891d76c
--- /dev/null
+++ b/test/fts3matchinfo2.test
@@ -0,0 +1,35 @@
+# 2020-05-14
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for the FTS3 module. The focus
+# of this file is tables created with the "matchinfo=fts3" option.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If SQLITE_ENABLE_FTS3 is not defined, omit this file.
+ifcapable !fts3 { finish_test ; return }
+
+set sqlite_fts3_enable_parentheses 1
+
+# Crash case found by cyg0810 at gmail.com 2020-05-14.  Reported to
+# chromium (which is not vulnerable) who kindly referred it to us.
+#
+do_execsql_test 1.0 {
+  CREATE TABLE t_content(col0 INTEGER);
+  CREATE VIRTUAL TABLE t0 USING fts3(col0 INTEGER PRIMARY KEY,col1 VARCHAR(8),col2 BINARY,col3 BINARY);
+  INSERT INTO t0 VALUES (1, '1234','aaaa','bbbb');
+  SELECT hex(matchinfo(t0,'yxy'))  FROM t0 WHERE t0 MATCH  x'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';
+} {/000000.*0000000/}
+
+
+set sqlite_fts3_enable_parentheses 0
+finish_test
diff --git a/test/fts3misc.test b/test/fts3misc.test
new file mode 100644
index 0000000000000000000000000000000000000000..a1bec424329519c8f98bf4550225f65a317057c2
--- /dev/null
+++ b/test/fts3misc.test
@@ -0,0 +1,326 @@
+# 2017 March 22
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS3 module.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix fts3misc
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+#-------------------------------------------------------------------------
+# A self-join.
+#
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts3(a, b);
+  INSERT INTO t1 VALUES('one', 'i');
+  INSERT INTO t1 VALUES('one', 'ii');
+  INSERT INTO t1 VALUES('two', 'i');
+  INSERT INTO t1 VALUES('two', 'ii');
+}
+
+do_execsql_test 1.1 {
+  SELECT a.a, b.b FROM t1 a, t1 b WHERE a.t1 MATCH 'two' AND b.t1 MATCH 'i'
+} {two i two i two i two i}
+
+#-------------------------------------------------------------------------
+# FTS tables with 128 or more columns.
+#
+proc v1 {v} {
+  set vector [list a b c d e f g h]
+  set res [list]
+  for {set i 0} {$i<8} {incr i} {
+    if {$v & (1 << $i)} { lappend res [lindex $vector $i] }
+  }
+  set res
+}
+proc v2 {v} {
+  set vector [list d e f g h i j k]
+  set res [list]
+  for {set i 0} {$i<8} {incr i} {
+    if {$v & (1 << $i)} { lappend res [lindex $vector $i] }
+  }
+  set res
+}
+db func v1 v1
+db func v2 v2
+
+do_test 2.0 {
+  set cols [list]
+  for {set i 0} {$i<200} {incr i} {
+    lappend cols "c$i"
+  }
+  execsql "CREATE VIRTUAL TABLE t2 USING fts3([join $cols ,])"
+  execsql {
+    WITH data(i) AS (
+      SELECT 1 UNION ALL SELECT i+1 FROM data WHERE i<200
+    )
+    INSERT INTO t2(c198, c199) SELECT v1(i), v2(i) FROM data;
+  }
+} {}
+do_execsql_test 2.1 {
+  SELECT rowid FROM t2 WHERE t2 MATCH '"a b c"'
+} {
+  7 15 23 31 39 47 55 63 71 79 87 95 103 111 
+  119 127 135 143 151 159 167 175 183 191 199
+}
+do_execsql_test 2.2 {
+  SELECT rowid FROM t2 WHERE t2 MATCH '"g h i"'
+} {
+  56 57 58 59 60 61 62 63 120 121 122 123 124 
+  125 126 127 184 185 186 187 188 189 190 191
+}
+do_execsql_test 2.3 {
+  SELECT rowid FROM t2 WHERE t2 MATCH '"i h"'
+} {
+}
+do_execsql_test 2.4 {
+  SELECT rowid FROM t2 WHERE t2 MATCH '"f e"'
+} {
+}
+do_execsql_test 2.5 {
+  SELECT rowid FROM t2 WHERE t2 MATCH '"e f"'
+} {
+  6 7 14 15 22 23 30 31 38 39 46 47 48 49 50 51 52 53 54 55 56 
+  57 58 59 60 61 62 63 70 71 78 79 86 87 94 95 102 103 110 
+  111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127
+  134 135 142 143 150 151 158 159 166 167 174 175 176 177 178 179 180 
+  181 182 183 184 185 186 187 188 189 190 191 198 199
+}
+
+#-------------------------------------------------------------------------
+# Range constraints on the docid using non-integer values.
+#
+do_execsql_test 2.6 {
+  SELECT rowid FROM t2 WHERE t2 MATCH 'e' AND rowid BETWEEN NULL AND 45;
+} {}
+do_execsql_test 2.7 {
+  SELECT rowid FROM t2 WHERE t2 MATCH 'e' AND rowid BETWEEN 11.5 AND 48.2;
+} {
+  14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 
+  29 30 31 34 35 38 39 42 43 46 47 48
+}
+do_execsql_test 2.8 {
+  SELECT rowid FROM t2 WHERE t2 MATCH 'e' AND rowid BETWEEN '11.5' AND '48.2';
+} {
+  14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 
+  29 30 31 34 35 38 39 42 43 46 47 48
+}
+
+#-------------------------------------------------------------------------
+# Phrase query tests. 
+#
+do_execsql_test 3.1.1 {
+  CREATE VIRTUAL TABLE t3 USING fts3;
+  INSERT INTO t3 VALUES('a b c');
+  INSERT INTO t3 VALUES('d e f');
+  INSERT INTO t3 VALUES('a b d');
+  INSERT INTO t3 VALUES('1 2 3 4 5 6 7 8 9 10 11');
+}
+do_execsql_test 3.1.2 {
+  SELECT * FROM t3 WHERE t3 MATCH '"a b x y"' ORDER BY docid DESC
+}
+do_execsql_test 3.1.3 {
+  SELECT * FROM t3 WHERE t3 MATCH '"a b c" OR "a b x y"' ORDER BY docid DESC
+} {{a b c}}
+do_execsql_test 3.1.4 {
+  SELECT * FROM t3 WHERE t3 MATCH '"a* b* x* a*"'
+}
+do_execsql_test 3.1.5 {
+  SELECT rowid FROM t3 WHERE t3 MATCH '"2 3 4 5 6 7 8 9"'
+} {4}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+ifcapable fts4_deferred {
+  do_execsql_test 4.0 {
+    PRAGMA page_size = 512;
+    CREATE VIRTUAL TABLE t4 USING fts4;
+    WITH s(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<8000 )
+    INSERT INTO t4 SELECT 'a b c a b c a b c' FROM s;
+  }
+  do_execsql_test 4.1 {
+    SELECT count(*) FROM t4 WHERE t4 MATCH '"a b c" OR "c a b"'
+  } {8000}
+  do_execsql_test 4.2 {
+    SELECT quote(value) from t4_stat where id=0
+  } {X'C03EC0B204C0A608'}
+  sqlite3_db_config db DEFENSIVE 0
+  do_execsql_test 4.3 {
+    UPDATE t4_stat SET value = X'C03EC0B204C0A60800' WHERE id=0;
+  }
+  do_catchsql_test 4.4 {
+    SELECT count(*) FROM t4 WHERE t4 MATCH '"a b c" OR "c a b"'
+  } {1 {database disk image is malformed}}
+  do_execsql_test 4.5 {
+    UPDATE t4_stat SET value = X'00C03EC0B204C0A608' WHERE id=0;
+  }
+  do_catchsql_test 4.6 {
+    SELECT count(*) FROM t4 WHERE t4 MATCH '"a b c" OR "c a b"'
+  } {1 {database disk image is malformed}}
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 5.0 {
+  CREATE VIRTUAL TABLE t5 USING fts4;
+  INSERT INTO t5 VALUES('a x x x x b x x x x c');
+  INSERT INTO t5 VALUES('a x x x x b x x x x c');
+  INSERT INTO t5 VALUES('a x x x x b x x x x c');
+}
+do_execsql_test 5.1 {
+  SELECT rowid FROM t5 WHERE t5 MATCH 'a NEAR/4 b NEAR/4 c'
+} {1 2 3}
+do_execsql_test 5.2 {
+  SELECT rowid FROM t5 WHERE t5 MATCH 'a NEAR/3 b NEAR/4 c'
+} {}
+do_execsql_test 5.3 {
+  SELECT rowid FROM t5 WHERE t5 MATCH 'a NEAR/4 b NEAR/3 c'
+} {}
+do_execsql_test 5.4 {
+  SELECT rowid FROM t5 WHERE t5 MATCH 'y NEAR/4 b NEAR/4 c'
+} {}
+do_execsql_test 5.5 {
+  SELECT rowid FROM t5 WHERE t5 MATCH 'x OR a NEAR/3 b NEAR/3 c'
+} {1 2 3}
+do_execsql_test 5.5 {
+  SELECT rowid FROM t5 WHERE t5 MATCH 'x OR y NEAR/3 b NEAR/3 c'
+} {1 2 3}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 6.0 {
+  CREATE VIRTUAL TABLE t6 USING fts4;
+
+  BEGIN;
+  WITH s(i) AS (SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<50000)
+    INSERT INTO t6 SELECT 'x x x x x x x x x x x' FROM s;
+
+  INSERT INTO t6 VALUES('x x x x x x x x x x x A');
+  INSERT INTO t6 VALUES('x x x x x x x x x x x B');
+  INSERT INTO t6 VALUES('x x x x x x x x x x x A');
+  INSERT INTO t6 VALUES('x x x x x x x x x x x B');
+
+  WITH s(i) AS (SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<50000)
+    INSERT INTO t6 SELECT 'x x x x x x x x x x x' FROM s;
+  COMMIT;
+}
+do_execsql_test 6.1 {
+  SELECT rowid FROM t6 WHERE t6 MATCH 'b OR "x a"'
+} {50001 50002 50003 50004}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 7.0 {
+  CREATE VIRTUAL TABLE vt0 USING fts3(c0);
+  INSERT INTO vt0 VALUES (x'00');
+}
+do_execsql_test 7.1 {
+  INSERT INTO vt0(vt0) VALUES('integrity-check');
+}
+
+#-------------------------------------------------------------------------
+# Ticket [8a6fa2bb].
+#
+reset_db
+do_execsql_test 7.0.1 {
+  CREATE VIRTUAL TABLE vt0 USING fts4(c0, order=DESC);
+  INSERT INTO vt0(c0) VALUES (0), (0);
+}
+do_execsql_test 7.0.2 {
+  INSERT INTO vt0(vt0) VALUES('integrity-check');
+}
+reset_db
+do_execsql_test 7.1.1 {
+  CREATE VIRTUAL TABLE vt0 USING fts4(c0, order=ASC);
+  INSERT INTO vt0(c0) VALUES (0), (0);
+}
+do_execsql_test 7.1.2 {
+  INSERT INTO vt0(vt0) VALUES('integrity-check');
+}
+do_execsql_test 7.2.1 {
+  CREATE VIRTUAL TABLE ft USING fts4(c0, c1, order=DESC, prefix=1);
+  INSERT INTO ft VALUES('a b c d', 'hello world');
+  INSERT INTO ft VALUES('negative', 'positive');
+  INSERT INTO ft VALUES('hello world', 'a b c d');
+}
+do_execsql_test 7.2.2 {
+  INSERT INTO vt0(vt0) VALUES('integrity-check');
+}
+
+#-------------------------------------------------------------------------
+# Ticket [745f1abc].
+#
+reset_db
+do_execsql_test 8.1 {
+  CREATE VIRTUAL TABLE vt0 USING fts4(c0, prefix=1);
+}
+do_execsql_test 8.2 {
+  BEGIN;
+    INSERT INTO vt0 VALUES (0);
+    INSERT INTO vt0(vt0) VALUES('optimize');
+  COMMIT;
+}
+do_execsql_test 8.3 {
+  INSERT INTO vt0(vt0) VALUES('integrity-check');
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 9.0 {
+  CREATE VIRTUAL TABLE t1 using fts4(mailcontent);
+  insert into t1(rowid, mailcontent) values
+      (-4764623217061966105, 'we are going to upgrade'),
+      (8324454597464624651, 'we are going to upgrade');
+}
+
+do_execsql_test 9.1 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+}
+
+do_execsql_test 9.2 {
+  SELECT rowid FROM t1 WHERE t1 MATCH 'upgrade';
+} {
+  -4764623217061966105 8324454597464624651
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 10.0 {
+  CREATE VIRTUAL TABLE f USING fts3(a,b);
+  CREATE TABLE 'f_stat'(id INTEGER PRIMARY KEY, value BLOB);
+  INSERT INTO f_stat VALUES (1,x'3b3b3b3b3b3b3b28ffffffffffffffffff1807f9073481f1d43bc93b3b3b3b3b3b3b3b3b3b18073b3b3b3b3b3b3b9b003b');
+} {}
+
+do_catchsql_test 10.1 {
+  INSERT INTO f(f) VALUES ('merge=69,59');
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+do_execsql_test 11.0 {
+  CREATE VIRTUAL TABLE xyz USING fts3();
+}
+do_execsql_test 11.1 {
+  SELECT * FROM xyz WHERE xyz MATCH 'a NEAR/4294836224 a';
+}
+
+finish_test
diff --git a/test/fts3near.test b/test/fts3near.test
new file mode 100644
index 0000000000000000000000000000000000000000..2d9981e5355197acfb28382c391005cfeadb6bb6
--- /dev/null
+++ b/test/fts3near.test
@@ -0,0 +1,597 @@
+
+# 2007 October 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+# $Id: fts3near.test,v 1.3 2009/01/02 17:33:46 danielk1977 Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+db eval {
+  CREATE VIRTUAL TABLE t1 USING fts3(content);
+  INSERT INTO t1(content) VALUES('one three four five');
+  INSERT INTO t1(content) VALUES('two three four five');
+  INSERT INTO t1(content) VALUES('one two three four five');
+}
+
+do_test fts3near-1.1 {
+  execsql {SELECT docid FROM t1 WHERE content MATCH 'one NEAR/0 three'}
+} {1}
+do_test fts3near-1.2 {
+  execsql {SELECT docid FROM t1 WHERE content MATCH 'one NEAR/1 two'}
+} {3}
+do_test fts3near-1.3 {
+  execsql {SELECT docid FROM t1 WHERE content MATCH 'one NEAR/1 three'}
+} {1 3}
+do_test fts3near-1.4 {
+  execsql {SELECT docid FROM t1 WHERE content MATCH 'three NEAR/1 one'}
+} {1 3}
+do_test fts3near-1.5 {
+  execsql {SELECT docid FROM t1 WHERE content MATCH '"one two" NEAR/1 five'}
+} {}
+do_test fts3near-1.6 {
+  execsql {SELECT docid FROM t1 WHERE content MATCH '"one two" NEAR/2 five'}
+} {3}
+do_test fts3near-1.7 {
+  execsql {SELECT docid FROM t1 WHERE content MATCH 'one NEAR four'}
+} {1 3}
+do_test fts3near-1.8 {
+  execsql {SELECT docid FROM t1 WHERE content MATCH 'four NEAR three'}
+} {1 2 3}
+do_test fts3near-1.9 {
+  execsql {SELECT docid FROM t1 WHERE content MATCH '"four five" NEAR/0 three'}
+} {1 2 3}
+do_test fts3near-1.10 {
+  execsql {SELECT docid FROM t1 WHERE content MATCH '"four five" NEAR/2 one'}
+} {1 3}
+do_test fts3near-1.11 {
+  execsql {SELECT docid FROM t1 WHERE content MATCH '"four five" NEAR/1 one'}
+} {1}
+do_test fts3near-1.12 {
+  execsql {SELECT docid FROM t1 WHERE content MATCH 'five NEAR/1 "two three"'}
+} {2 3} 
+do_test fts3near-1.13 {
+  execsql {SELECT docid FROM t1 WHERE content MATCH 'one NEAR five'}
+} {1 3} 
+
+do_test fts3near-1.14 {
+  execsql {SELECT docid FROM t1 WHERE content MATCH 'four NEAR four'}
+} {} 
+do_test fts3near-1.15 {
+  execsql {SELECT docid FROM t1 WHERE content MATCH 'one NEAR two NEAR one'}
+} {3} 
+
+do_test fts3near-1.16 {
+  execsql {
+    SELECT docid FROM t1 WHERE content MATCH '"one three" NEAR/0 "four five"'
+  }
+} {1} 
+do_test fts3near-1.17 {
+  execsql {
+    SELECT docid FROM t1 WHERE content MATCH '"four five" NEAR/0 "one three"'
+  }
+} {1} 
+
+
+# Output format of the offsets() function:
+#
+#     <column number> <term number> <starting offset> <number of bytes>
+#
+db eval {
+  INSERT INTO t1(content) VALUES('A X B C D A B');
+}
+do_test fts3near-2.1 {
+  execsql {
+    SELECT offsets(t1) FROM t1 WHERE content MATCH 'A NEAR/0 B'
+  }
+} {{0 0 10 1 0 1 12 1}}
+do_test fts3near-2.2 {
+  execsql {
+    SELECT offsets(t1) FROM t1 WHERE content MATCH 'B NEAR/0 A'
+  }
+} {{0 1 10 1 0 0 12 1}}
+do_test fts3near-2.3 {
+  execsql {
+    SELECT offsets(t1) FROM t1 WHERE content MATCH '"C D" NEAR/0 A'
+  }
+} {{0 0 6 1 0 1 8 1 0 2 10 1}}
+do_test fts3near-2.4 {
+  execsql {
+    SELECT offsets(t1) FROM t1 WHERE content MATCH 'A NEAR/0 "C D"'
+  }
+} {{0 1 6 1 0 2 8 1 0 0 10 1}}
+do_test fts3near-2.5 {
+  execsql {
+    SELECT offsets(t1) FROM t1 WHERE content MATCH 'A NEAR A'
+  }
+} {{0 0 0 1 0 1 0 1 0 0 10 1 0 1 10 1}}
+do_test fts3near-2.6 {
+  execsql {
+    INSERT INTO t1 VALUES('A A A');
+    SELECT offsets(t1) FROM t1 WHERE content MATCH 'A NEAR/2 A';
+  }
+} [list [list 0 0 0 1   0 1 0 1   0 0 2 1   0 1 2 1   0 0 4 1   0 1 4 1]]
+do_test fts3near-2.7 {
+  execsql {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES('A A A A');
+    SELECT offsets(t1) FROM t1 WHERE content MATCH 'A NEAR A NEAR A';
+  }
+} [list [list \
+    0 0 0 1   0 1 0 1   0 2 0 1   0 0 2 1   \
+    0 1 2 1   0 2 2 1   0 0 4 1   0 1 4 1   \
+    0 2 4 1   0 0 6 1   0 1 6 1   0 2 6 1   \
+]]
+
+db eval {
+  DELETE FROM t1;
+  INSERT INTO t1(content) VALUES(
+    'one two three two four six three six nine four eight twelve'
+  );
+}
+
+do_test fts3near-3.1 {
+  execsql {SELECT offsets(t1) FROM t1 WHERE content MATCH 'three NEAR/1 one'}
+} {{0 1 0 3 0 0 8 5}}
+do_test fts3near-3.2 {
+  execsql {SELECT offsets(t1) FROM t1 WHERE content MATCH 'one NEAR/1 three'}
+} {{0 0 0 3 0 1 8 5}}
+do_test fts3near-3.3 {
+  execsql {SELECT offsets(t1) FROM t1 WHERE content MATCH 'three NEAR/1 two'}
+} {{0 1 4 3 0 0 8 5 0 1 14 3}}
+do_test fts3near-3.4 {
+  execsql {SELECT offsets(t1) FROM t1 WHERE content MATCH 'three NEAR/2 two'}
+} {{0 1 4 3 0 0 8 5 0 1 14 3 0 0 27 5}}
+do_test fts3near-3.5 {
+  execsql {SELECT offsets(t1) FROM t1 WHERE content MATCH 'two NEAR/2 three'}
+} {{0 0 4 3 0 1 8 5 0 0 14 3 0 1 27 5}}
+do_test fts3near-3.6 {
+  execsql {
+    SELECT offsets(t1) FROM t1 WHERE content MATCH 'three NEAR/0 "two four"'
+  }
+} {{0 0 8 5 0 1 14 3 0 2 18 4}}
+do_test fts3near-3.7 {
+  execsql {
+    SELECT offsets(t1) FROM t1 WHERE content MATCH '"two four" NEAR/0 three'}
+} {{0 2 8 5 0 0 14 3 0 1 18 4}}
+
+db eval {
+  INSERT INTO t1(content) VALUES('
+    This specification defines Cascading Style Sheets, level 2 (CSS2). CSS2 is a style sheet language that allows authors and users to attach style (e.g., fonts, spacing, and aural cues) to structured documents (e.g., HTML documents and XML applications). By separating the presentation style of documents from the content of documents, CSS2 simplifies Web authoring and site maintenance.
+
+    CSS2 builds on CSS1 (see [CSS1]) and, with very few exceptions, all valid CSS1 style sheets are valid CSS2 style sheets. CSS2 supports media-specific style sheets so that authors may tailor the presentation of their documents to visual browsers, aural devices, printers, braille devices, handheld devices, etc. This specification also supports content positioning, downloadable fonts, table layout, features for internationalization, automatic counters and numbering, and some properties related to user interface.
+  ') 
+}
+do_test fts3near-4.1 {
+  execsql {
+    SELECT snippet(t1) FROM t1 WHERE content MATCH 'specification NEAR supports'
+  }
+} {{<b>...</b>braille devices, handheld devices, etc. This <b>specification</b> also <b>supports</b> content positioning, downloadable fonts, table layout<b>...</b>}}
+
+do_test fts3near-5.1 {
+  execsql {
+    SELECT docid FROM t1 WHERE content MATCH 'specification attach'
+  }
+} {2}
+do_test fts3near-5.2 {
+  execsql {
+    SELECT docid FROM t1 WHERE content MATCH 'specification NEAR attach'
+  }
+} {}
+do_test fts3near-5.3 {
+  execsql {
+    SELECT docid FROM t1 WHERE content MATCH 'specification NEAR/18 attach'
+  }
+} {}
+do_test fts3near-5.4 {
+  execsql {
+    SELECT docid FROM t1 WHERE content MATCH 'specification NEAR/19 attach'
+  }
+} {2}
+do_test fts3near-5.5 {
+  execsql {
+    SELECT docid FROM t1 WHERE content MATCH 'specification NEAR/000018 attach'
+  }
+} {}
+do_test fts3near-5.6 {
+  execsql {
+    SELECT docid FROM t1 WHERE content MATCH 'specification NEAR/000019 attach'
+  }
+} {2}
+
+db eval {
+  INSERT INTO t1 VALUES('
+      abbrev aberrations abjurations aboding abr abscesses absolutistic
+      abstention abuses acanthuses acceptance acclaimers accomplish
+      accoutring accusation acetonic acid acolytes acquitting acrylonitrile
+      actives acyclic addicted adenoid adjacently adjusting admissible
+      adoption adulated advantaging advertisers aedes aerogramme aetiology
+      affiliative afforest afterclap agamogenesis aggrade agings agonize
+      agron ailurophile airfreight airspeed alarmists alchemizing
+      alexandrines alien aliped all allergenic allocator allowances almost
+      alphabetizes altho alvine amaurosis ambles ameliorate amicability amnio
+      amour ampicillin amusement anadromous analogues anarchy anchormen
+      anecdota aneurin angst animating anlage announcements anodized
+      answerable antemeridian anthracene antiabortionist anticlimaxes
+      antifriction antimitotic antiphon antiques antithetic anviled
+      apatosaurus aphrodisia apodal aposiopesis apparatus appendectomies
+      applications appraisingly appropriate apteryx arabinose
+      arboricultural archdeaconates archipelago ardently arguers armadillo
+      arnicas arrayed arrowy arthroscope artisans ascensive ashier
+      aspersorium assail assentor assignees assonants astereognosis
+      astringency astutest atheistical atomize attachment attenuates
+      attrahent audibility augite auricle auteurists autobus autolysis
+      autosome avenge avidest aw awl ayes babirusa backbeats backgrounder
+      backseat backswings baddie bagnios baked balefuller ballista balmily
+      bandbox bandylegged bankruptcy baptism barbering bargain barneys
+      barracuda barterer bashes bassists bathers batterer bavardage
+      beachfront beanstalk beauteous become bedim bedtimes beermats begat
+      begun belabors bellarmine belongings bending benthos bereavements
+      besieger bestialized betide bevels biases bicarbonates bidentate bigger
+      bile billow bine biodynamics biomedicine biotites birding bisection
+      bitingly bkg blackheads blaeberry blanking blatherer bleeper blindage
+      blithefulness blockish bloodstreams bloused blubbing bluestocking
+      blurted boatbill bobtailed boffo bold boltrope bondservant bonks
+      bookbinding bookworm booting borating boscages botchers bougainvillea
+      bounty bowlegged boyhood bracketed brainstorm brandishes
+      braunschweigers brazilin breakneck breathlessness brewage bridesmaids
+      brighter brisker broader brokerages bronziest browband brunets bryology
+      bucking budlike bugleweed bulkily bulling bummer bunglers bureau burgs
+      burrito bushfire buss butlery buttressing bylines cabdriver cached
+      cadaverousnesses cafeterias cakewalk calcifies calendula callboy calms
+      calyptra camisoles camps candelabrum caned cannolis canoodling cantors
+      cape caponize capsuling caracoled carbolics carcase carditis caretakers
+      carnallite carousel carrageenan cartels carves cashbook castanets
+      casuistry catalyzer catchers categorizations cathexis caucuses
+      causeway cavetto cede cella cementite centenary centrals ceramics ceria
+      cervixes chafferer chalcopyrites chamfers change chaotically
+      characteristically charivari chases chatterer cheats cheeks chef
+      chemurgy chetah chickaree chigoes chillies chinning chirp chive
+      chloroforms chokebore choplogic chorioids chromatic chronically
+      chubbiest chunder chutzpah cimetidine cinque circulated circumscribe
+      cirrose citrin claddagh clamorousness clapperboards classicalism
+      clauses cleanse clemency clicker clinchers cliquiest clods closeting
+      cloudscape clucking cnidarian coalfish coatrack coca cockfights coddled
+      coeducation coexistence cognitively coiffed colatitude collage
+      collections collinear colonelcy colorimetric columelliform combos
+      comforters commence commercialist commit commorancy communized compar
+      compendiously complainers compliance composition comprised comradery
+      concelebrants concerted conciliation concourses condensate
+      condonations confab confessionals confirmed conforming congeal
+      congregant conjectured conjurers connoisseurs conscripting
+      conservator consolable conspired constricting consuls contagious
+      contemporaneity contesters continuities contractors contrarian
+      contrive convalescents convents convexly convulsed cooncan coparcenary
+      coprolite copyreader cordially corklike cornflour coroner corralling
+      corrigible corsages cosies cosmonauts costumer cottontails counselings
+      counterclaim counterpane countertenors courageously couth coveting
+      coworker cozier cracklings crampon crappies craved cream credenzas
+      crematoriums cresol cricoid crinkle criterion crocodile crore crossover
+      crowded cruelest crunch cruzeiros cryptomeria cubism cuesta culprit
+      cumquat cupped curdle curly cursoring curvy customized cutting cyclamens
+      cylindrical cytaster dachshund daikon damages damselfly dangling
+      darkest databanks dauphine dazzling deadpanned deathday debauchers
+      debunking decameter decedents decibel decisions declinations
+      decomposition decoratively decretive deduct deescalated defecating
+      deferentially definiendum defluxion defrocks degrade deice dekaliters
+      deli delinquencies deludedly demarcates demineralizers demodulating
+      demonstrabilities demurred deniabilities denouncement denudation
+      departure deplorable deposing depredatory deputizes derivational
+      desalinization descriptors desexes desisted despising destitute
+      detectability determiner detoxifying devalued devilries devotions
+      dextrous diagenesis dialling diaphoresis diazonium dickeys diddums
+      differencing dig dignified dildo dimetric dineric dinosaurs diplodocus
+      directer dirty disagrees disassembler disburses disclosures
+      disconcerts discountability discrete disembarrass disenthrone
+      disgruntled dishpans disintegrators dislodged disobedient
+      dispassionate dispiritednesses dispraised disqualifying
+      dissatisfying dissidence dissolvers distich distracting distrusts
+      ditto diverse divineness dizzily dockyard dodgers doggish doited dom
+      dominium doohickey doozie dorsum doubleheaders dourer downbeats
+      downshifted doyennes draftsman dramatic drawling dredge drifter
+      drivelines droopier drowsed drunkards dubiosities duding dulcifying
+      dumpcart duodecillion durable duteous dyed dysgenic eagles earplugs
+      earwitness ebonite echoers economical ectothermous edibility educates
+      effected effigies eggbeaters egresses ejaculates elasticize elector
+      electrodynamometer electrophorus elem eligibly eloped emaciating
+      embarcaderos embezzlers embosses embryectomy emfs emotionalizing
+      empiricist emu enamels enchained encoded encrusts endeavored endogamous
+      endothelioma energizes engager engrosses enl enologist enrolls ensphere
+      enters entirety entrap entryways envies eosinophil epicentral
+      epigrammatized episodic epochs equestrian equitably erect ernes
+      errorless escalated eschatology espaliers essonite estop eternity
+      ethnologically eudemonics euphonious euthenist evangelizations
+      eventuality evilest evulsion examinee exceptionably exciter
+      excremental execrably exemplars exhalant exhorter exocrine exothermic
+      expected expends explainable exploratory expostulatory expunges
+      extends externals extorts extrapolative extrorse eyebolt eyra
+      facetiously factor faeries fairings fallacies falsities fancifulness
+      fantasticalness farmhouse fascinate fatalistically fattener fave
+      fearlessly featly federates feints fellowman fencers ferny
+      fertilenesses feta feudality fibers fictionalize fiefs fightback
+      filefish filmier finaglers fingerboards finochio firefly firmament
+      fishmeal fitted fjords flagitiousnesses flamen flaps flatfooting
+      flauntier fleapit fleshes flickertail flints floaty floorboards
+      floristic flow fluffily fluorescein flutes flyspecks foetal folderols
+      followable foolhardier footlockers foppish forceless foredo foreknows
+      foreseeing foretaste forgather forlorn formidableness fortalice
+      forwarding founding foxhunting fragmentarily frangipani fray freeform
+      freezable freshening fridges frilliest frizzed frontbench frottages
+      fruitcake fryable fugleman fulminated functionalists fungoid furfuran
+      furtive fussy fwd gadolinium galabias gallinaceous galvanism gamers
+      gangland gaoling garganey garrisoning gasp gate gauger gayety geed
+      geminately generalissimos genii gentled geochronology geomorphic
+      geriatricians gesellschaft ghat gibbeting giggles gimps girdlers
+      glabella glaive glassfuls gleefully glistered globetrotted glorifier
+      gloving glutathione glyptodont goaled gobsmacked goggliest golliwog
+      goobers gooseberries gormandizer gouramis grabbier gradually grampuses
+      grandmothers granulated graptolite gratuitously gravitates greaten
+      greenmailer greys grills grippers groan gropingly grounding groveling
+      grueled grunter guardroom guggle guineas gummed gunnysacks gushingly
+      gutturals gynecoid gyrostabilizer habitudes haemophilia hailer hairs
+      halest hallow halters hamsters handhelds handsaw hangup haranguer
+      hardheartedness harlotry harps hashing hated hauntingly hayrack
+      headcases headphone headword heartbreakers heaters hebephrenia
+      hedonist heightening heliozoan helots hemelytron hemorrhagic hent
+      herbicides hereunto heroines heteroclitics heterotrophs hexers
+      hidebound hies hightails hindmost hippopotomonstrosesquipedalian
+      histologist hittable hobbledehoys hogans holdings holocrine homegirls
+      homesteader homogeneousness homopolar honeys hoodwinks hoovered
+      horizontally horridness horseshoers hospitalization hotdogging houri
+      housemate howitzers huffier humanist humid humors huntress husbandmen
+      hyaenas hydride hydrokinetics hydroponically hygrothermograph
+      hyperbolically hypersensitiveness hypnogogic hypodermically
+      hypothermia iatrochemistry ichthyological idealist ideograms idling
+      igniting illegal illuminatingly ilmenite imbibing immateriality
+      immigrating immortalizes immures imparts impeder imperfection
+      impersonated implant implying imposition imprecating imprimis
+      improvising impv inanenesses inaugurate incapably incentivize
+      incineration incloses incomparableness inconsequential incorporate
+      incrementing incumbered indecorous indentation indicative indignities
+      indistinguishably indoors indulges ineducation inerrable
+      inexperienced infants infestations infirmnesses inflicting
+      infracostal ingathered ingressions inheritances iniquity
+      injuriousnesses innervated inoculates inquisitionist insectile
+      insiders insolate inspirers instatement instr insulates intactness
+      intellects intensifies intercalations intercontinental interferon
+      interlarded intermarrying internalizing interpersonally
+      interrelatednesses intersperse interviewees intolerance
+      intransigents introducing intubates invades inventing inveterate
+      invocate iodides irenicism ironsmith irreducibly irresistibility
+      irriguous isobarisms isometrically issuable itineracies jackdaws
+      jaggery jangling javelins jeeringly jeremiad jeweler jigsawing jitter
+      jocosity jokester jot jowls judicative juicy jungly jurists juxtaposed
+      kalpa karstify keddah kendo kermesses keynote kibbutznik kidnaper
+      kilogram kindred kingpins kissers klatch kneads knobbed knowingest
+      kookaburras kruller labefaction labyrinths lacquer laddered lagoons
+      lambency laminates lancinate landscapist lankiness lapse larked lasso
+      laterite laudableness laundrywomen lawgiver laypersons leafhoppers
+      leapfrogs leaven leeches legated legislature leitmotifs lenients
+      leprous letterheads levelling lexicographically liberalists
+      librettist licorice lifesaving lightheadedly likelier limekiln limped
+      lines linkers lipoma liquidator listeners litharge litmus
+      liverishnesses loamier lobeline locative locutionary loggier loiterer
+      longevity loomed loping lotion louts lowboys luaus lucrativeness lulus
+      lumpier lungi lush luthern lymphangial lythraceous machinists maculate
+      maggot magnetochemistry maharani maimers majored malaprops malignants
+      maloti mammary manchineel manfully manicotti manipulativenesses
+      mansards manufactories maraschino margin markdown marooning marshland
+      mascaraing massaging masticate matchmark matings mattes mausoleum
+      mayflies mealworm meataxe medevaced medievalist meetings megavitamin
+      melded melodramatic memorableness mendaciousnesses mensurable
+      mercenaries mere meronymous mesmerizes mestee metallurgical
+      metastasize meterages meticulosity mewed microbe microcrystalline
+      micromanager microsporophyll midiron miffed milder militiamen
+      millesimal milometer mincing mingily minims minstrelsy mires
+      misanthropic miscalculate miscomprehended misdefines misery mishears
+      misled mispickel misrepresent misspending mistranslate miswriting
+      mixologists mobilizers moderators modulate mojo mollies momentum monde
+      monied monocles monographs monophyletic monotonousness moocher
+      moorages morality morion mortally moseyed motherly motorboat mouldering
+      mousers moveables mucky mudslides mulatto multicellularity
+      multipartite multivalences mundanities murkiest mushed muskiness
+      mutability mutisms mycelia myosotis mythicist nacred namable napkin
+      narghile nastiness nattering nauseations nearliest necessitate
+      necrophobia neg negotiators neologizes nephrotomy netiquette
+      neurophysiology newbie newspaper niccolite nielsbohriums nightlong
+      nincompoops nitpicked nix noddling nomadize nonadhesive noncandidates
+      nonconducting nondigestible nones nongreasy nonjoinder nonoccurrence
+      nonporousness nonrestrictive nonstaining nonuniform nooses northwards
+      nostalgic notepaper nourishment noyades nuclides numberless numskulls
+      nutmegged nymphaea oatmeal obis objurgators oblivious obsequiousness
+      obsoletism obtruding occlusions ocher octettes odeums offcuts
+      officiation ogival oilstone olestras omikron oncogenesis onsetting
+      oomphs openly ophthalmoscope opposites optimum orangutans
+      orchestrations ordn organophosphates origin ornithosis orthognathous
+      oscillatory ossuaries ostracized ounce outbreaks outearning outgrows
+      outlived outpoints outrunning outspends outwearing overabound
+      overbalance overcautious overcrowds overdubbing overexpanding
+      overgraze overindustrialize overlearning overoptimism overproducing
+      overripe overshadowing overspreading overstuff overtones overwind ow
+      oxidizing pacer packs paganish painstakingly palate palette pally
+      palsying pandemic panhandled pantheism papaws papped parading
+      parallelize paranoia parasitically pardners parietal parodied pars
+      participator partridgeberry passerines password pastors
+      paterfamiliases patination patrolman paunch pawnshops peacekeeper
+      peatbog peculator pedestrianism peduncles pegboard pellucidnesses
+      pendency penitentiary penstock pentylenetetrazol peptidase perched
+      perennial performing perigynous peripheralize perjurer permissively
+      perpetuals persistency perspicuously perturbingly pesky petcock
+      petrologists pfennige pharmacies phenformin philanderers
+      philosophically phonecards phosgenes photocomposer photogenic photons
+      phototype phylloid physiotherapeutics picadores pickup pieces pigging
+      pilaster pillion pimples pinioned pinpricks pipers pirogi pit
+      pitifullest pizza placental plainly planing plasmin platforming
+      playacts playwrights plectra pleurisy plopped plug plumule plussed
+      poaches poetasters pointless polarize policyholder polkaed
+      polyadelphous polygraphing polyphonous pomace ponderers pooch poplar
+      porcelains portableness portly positioning postage posthumously
+      postponed potages potholed poulard powdering practised pranksters
+      preadapt preassigning precentors precipitous preconditions predefined
+      predictors preengage prefers prehumans premedical prenotification
+      preplanning prepuberty presbytery presentation presidia prestissimo
+      preterites prevailer prewarmed priding primitively principalships
+      prisage privileged probed prochurch proctoscope products proficients
+      prognathism prohibiting proletarianisms prominence promulgates
+      proofreading property proportions prorate proselytize prosthesis
+      proteins prototypic provenances provitamin prudish pseudonymities
+      psychoanalysts psychoneuroses psychrometer publishable pufferies
+      pullet pulses punchy punkins purchased purities pursers pushover
+      putridity pylons pyrogenous pzazz quadricepses quaff qualmish quarriers
+      quasilinear queerness questionnaires quieten quintals quislings quoits
+      rabidness racketeers radiative radioisotope radiotherapists ragingly
+      rainband rakishness rampagers rands raped rare raspy ratiocinator
+      rattlebrain ravening razz reactivation readoption realm reapportioning
+      reasoning reattempts rebidding rebuts recapitulatory receptiveness
+      recipes reckonings recognizee recommendatory reconciled reconnoiters
+      recontaminated recoupments recruits recumbently redact redefine
+      redheaded redistributable redraw redwing reeled reenlistment reexports
+      refiles reflate reflowing refortified refried refuses regelate
+      registrant regretting rehabilitative reigning reinduced reinstalled
+      reinvesting rejoining relations relegates religiosities reluctivity
+      remastered reminisce remodifying remounted rends renovate reordered
+      repartee repel rephrase replicate repossessing reprint reprogramed
+      repugnantly requiter rescheduling resegregate resettled residually
+      resold resourcefulness respondent restating restrainedly resubmission
+      resurveyed retaliating retiarius retorsion retreated retrofitting
+      returning revanchism reverberated reverted revitalization
+      revolutionize rewind rhapsodizing rhizogenic rhythms ricketinesses
+      ridicule righteous rilles rinks rippliest ritualize riyals roast rockery
+      roguish romanizations rookiest roquelaure rotation rotundity rounder
+      routinizing rubberize rubricated ruefully ruining rummaged runic
+      russets ruttish sackers sacrosanctly safeguarding said salaciousness
+      salinity salsas salutatorians sampan sandbag saned santonin
+      saprophagous sarnies satem saturant savaged sawbucks scablike scalp
+      scant scared scatter schedulers schizophrenics schnauzers schoolmarms
+      scintillae scleroses scoped scotched scram scratchiness screwball
+      scripting scrubwomen scrutinizing scumbled scuttled seals seasickness
+      seccos secretions secularizing seditiousnesses seeking segregators
+      seize selfish semeiology seminarian semitropical sensate sensors
+      sentimo septicemic sequentially serener serine serums
+      sesquicentennials seventeen sexiest sforzandos shadowing shallot
+      shampooing sharking shearer sheered shelters shifter shiner shipper
+      shitted shoaled shofroth shorebirds shortsightedly showboated shrank
+      shrines shucking shuttlecocks sickeningly sideling sidewise sigil
+      signifiers siliceous silty simony simulative singled sinkings sirrah
+      situps skateboarder sketchpad skim skirmished skulkers skywalk slander
+      slating sleaziest sleepyheads slicking slink slitting slot slub
+      slumlords smallest smattered smilier smokers smriti snailfish snatch
+      snides snitching snooze snowblowers snub soapboxing socialite sockeyes
+      softest sold solicitings solleret sombreros somnolencies sons sopor
+      sorites soubrette soupspoon southpaw spaces spandex sparkers spatially
+      speccing specking spectroscopists speedsters spermatics sphincter
+      spiffied spindlings spirals spitball splayfeet splitter spokeswomen
+      spooled sportily spousals sprightliness sprogs spurner squalene
+      squattered squelches squirms stablish staggerings stalactitic stamp
+      stands starflower starwort stations stayed steamroll steeplebush
+      stemmatics stepfathers stereos steroid sticks stillage stinker
+      stirringly stockpiling stomaching stopcock stormers strabismuses
+      strainer strappado strawberries streetwise striae strikeouts strives
+      stroppiest stubbed study stunting style suavity subchloride subdeb
+      subfields subjoin sublittoral subnotebooks subprograms subside
+      substantial subtenants subtreasuries succeeding sucked sufferers
+      sugarier sulfaguanidine sulphating summerhouse sunbonnets sunned
+      superagency supercontinent superheroes supernatural superscribing
+      superthin supplest suppositive surcease surfs surprise survey
+      suspiration svelte swamplands swashes sweatshop swellhead swindling
+      switching sworn syllabuses sympathetics synchrocyclotron syndic
+      synonymously syringed tablatures tabulation tackling taiga takas talker
+      tamarisks tangential tans taproom tarpapers taskmaster tattiest
+      tautologically taxied teacup tearjerkers technocracies teepee
+      telegenic telephony telexed temperaments temptress tenderizing tensed
+      tenuring tergal terned terror testatrices tetherball textile thatched
+      their theorem thereof thermometers thewy thimerosal thirsty
+      thoroughwort threateningly thrived through thumbnails thwacks
+      ticketing tie til timekeepers timorousness tinkers tippers tisane
+      titrating toastmaster toff toking tomb tongs toolmakings topes topple
+      torose tortilla totalizing touchlines tousling townsmen trachea
+      tradeable tragedienne traitorous trances transcendentalists
+      transferrable tranship translating transmogrifying transportable
+      transvestism traumatize treachery treed trenail tressing tribeswoman
+      trichromatism triennials trikes trims triplicate tristich trivializes
+      trombonist trots trouts trued trunnion tryster tubes tulle tundras turban
+      turgescence turnround tutelar tweedinesses twill twit tympanum typists
+      tzarists ulcered ultramodern umbles unaccountability unamended
+      unassertivenesses unbanned unblocked unbundled uncertified unclaimed
+      uncoated unconcerns unconvinced uncrossing undefined underbodice
+      underemphasize undergrowth underpayment undershirts understudy
+      underwritten undissolved unearthed unentered unexpended unfeeling
+      unforeseen unfussy unhair unhinges unifilar unimproved uninvitingly
+      universalization unknowns unlimbering unman unmet unnaturalness
+      unornament unperturbed unprecedentedly unproportionate unread
+      unreflecting unreproducible unripe unsatisfying unseaworthiness
+      unsharable unsociable unstacking unsubtly untactfully untied untruest
+      unveils unwilled unyokes upheave upraised upstart upwind urethrae
+      urtexts usurers uvula vacillators vailed validation valvule vanities
+      varia variously vassaled vav veggies velours venerator ventrals
+      verbalizes verification vernacularized verticality vestigially via
+      vicariously victoriousness viewpoint villainies vines violoncellist
+      virtual viscus vital vitrify viviparous vocalizers voidable volleys
+      volutes vouches vulcanology wackos waggery wainwrights waling wallowing
+      wanking wardroom warmup wartiest washwoman watchman watermarks waverer
+      wayzgoose weariest weatherstripped weediness weevil welcomed
+      wentletrap whackers wheatworm whelp whf whinged whirl whistles whithers
+      wholesomeness whosoever widows wikiup willowier windburned windsail
+      wingspread winterkilled wisecracking witchgrass witling wobbliest
+      womanliness woodcut woodworking woozy working worldwide worthiest
+      wrappings wretched writhe wynd xylophone yardarm yea yelped yippee yoni
+      yuks zealotry zigzagger zitherists zoologists zygosis');
+}
+
+do_test fts3near-6.1 {
+  execsql {
+    SELECT docid FROM t1 WHERE content MATCH 'abbrev zygosis'
+  }
+} {3}
+do_test fts3near-6.2 {
+  execsql {
+    SELECT docid FROM t1 WHERE content MATCH 'abbrev NEAR zygosis'
+  }
+} {}
+do_test fts3near-6.3 {
+  execsql {
+    SELECT docid FROM t1 WHERE content MATCH 'abbrev NEAR/100 zygosis'
+  }
+} {}
+do_test fts3near-6.4 {
+  execsql {
+    SELECT docid FROM t1 WHERE content MATCH 'abbrev NEAR/1000 zygosis'
+  }
+} {}
+do_test fts3near-6.5 {
+  execsql {
+    SELECT docid FROM t1 WHERE content MATCH 'abbrev NEAR/10000 zygosis'
+  }
+} {3}
+
+# Ticket 38b1ae018f.
+#
+do_execsql_test fts3near-7.1 {
+  CREATE VIRTUAL TABLE x USING fts4(y,z);
+  INSERT INTO x VALUES('aaa bbb ccc ddd', 'bbb ddd aaa ccc');
+  SELECT * FROM x where y MATCH 'bbb NEAR/6 aaa';
+} {{aaa bbb ccc ddd} {bbb ddd aaa ccc}}
+
+do_execsql_test fts3near-7.2 {
+  CREATE VIRTUAL TABLE t2 USING fts4(a, b);
+  INSERT INTO t2 VALUES('A B C', 'A D E');
+  SELECT * FROM t2 where t2 MATCH 'a:A NEAR E'
+} {}
+
+
+finish_test
diff --git a/test/fts3offsets.test b/test/fts3offsets.test
new file mode 100644
index 0000000000000000000000000000000000000000..24c339dc124d482b1b7ca2383ac95af04535dbfa
--- /dev/null
+++ b/test/fts3offsets.test
@@ -0,0 +1,135 @@
+# 2010 November 02
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If SQLITE_ENABLE_FTS3 is not defined, omit this file.
+ifcapable !fts3 { finish_test ; return }
+
+set testprefix fts3offsets
+set sqlite_fts3_enable_parentheses 1
+
+proc extract {offsets text} {
+  set res ""
+
+  set off [list]
+  foreach {t i s n} $offsets {
+    lappend off [list $s $n]
+  }
+  set off [lsort -integer -index 0 $off]
+
+  set iOff 0
+  foreach e $off {
+    foreach {s n} $e {}
+    append res [string range $text $iOff $s-1]
+    append res "("
+    append res [string range $text $s [expr $s+$n-1]]
+    append res ")"
+    set iOff [expr $s+$n]
+  }
+  append res [string range $text $iOff end]
+  
+  set res
+}
+db func extract extract
+
+
+do_execsql_test 1.1.0 {
+  CREATE VIRTUAL TABLE xx USING fts3(x);
+  INSERT INTO xx VALUES('A x x x B C x x');
+  INSERT INTO xx VALUES('A B C x B x x C');
+  INSERT INTO xx VALUES('A x x B C x x x');
+}
+do_execsql_test 1.1.1 {
+  SELECT oid,extract(offsets(xx), x) FROM xx WHERE xx MATCH 'a OR (b NEAR/1 c)';
+} {
+  1 {(A) x x x (B) (C) x x} 
+  2 {(A) (B) (C) x (B) x x C} 
+  3 {(A) x x (B) (C) x x x}
+}
+
+do_execsql_test 1.2 {
+  DELETE FROM xx;
+  INSERT INTO xx VALUES('A x x x B C x x');
+  INSERT INTO xx VALUES('A x x C x x x C');
+  INSERT INTO xx VALUES('A x x B C x x x');
+}
+do_execsql_test 1.2.1 {
+  SELECT oid,extract(offsets(xx), x) FROM xx WHERE xx MATCH 'a OR (b NEAR/1 c)';
+} {
+  1 {(A) x x x (B) (C) x x}
+  2 {(A) x x C x x x C} 
+  3 {(A) x x (B) (C) x x x}
+}
+
+do_execsql_test 1.3 {
+  DELETE FROM xx;
+  INSERT INTO xx(rowid, x) VALUES(1, 'A B C');
+  INSERT INTO xx(rowid, x) VALUES(2, 'A x');
+  INSERT INTO xx(rowid, x) VALUES(3, 'A B C');
+  INSERT INTO xx(rowid, x) VALUES(4, 'A B C x x x x x x x B');
+  INSERT INTO xx(rowid, x) VALUES(5, 'A x x x x x x x x x C');
+  INSERT INTO xx(rowid, x) VALUES(6, 'A x x x x x x x x x x x B');
+  INSERT INTO xx(rowid, x) VALUES(7, 'A B C');
+}
+do_execsql_test 1.3.1 {
+  SELECT oid,extract(offsets(xx), x) FROM xx WHERE xx MATCH 'a OR (b NEAR/1 c)';
+} {
+  1 {(A) (B) (C)}
+  2 {(A) x}
+  3 {(A) (B) (C)}
+  4 {(A) (B) (C) x x x x x x x B}
+  5 {(A) x x x x x x x x x C}
+  6 {(A) x x x x x x x x x x x B} 
+  7 {(A) (B) (C)}
+}
+
+
+do_execsql_test 1.4 {
+  DELETE FROM xx;
+  INSERT INTO xx(rowid, x) VALUES(7, 'A B C');
+  INSERT INTO xx(rowid, x) VALUES(6, 'A x');
+  INSERT INTO xx(rowid, x) VALUES(5, 'A B C');
+  INSERT INTO xx(rowid, x) VALUES(4, 'A B C x x x x x x x B');
+  INSERT INTO xx(rowid, x) VALUES(3, 'A x x x x x x x x x C');
+  INSERT INTO xx(rowid, x) VALUES(2, 'A x x x x x x x x x x x B');
+  INSERT INTO xx(rowid, x) VALUES(1, 'A B C');
+}
+do_execsql_test 1.4.1 {
+  SELECT oid,extract(offsets(xx), x) FROM xx WHERE xx MATCH 'a OR (b NEAR/1 c)'
+  ORDER BY docid DESC;
+} {
+  7 {(A) (B) (C)}
+  6 {(A) x}
+  5 {(A) (B) (C)}
+  4 {(A) (B) (C) x x x x x x x B}
+  3 {(A) x x x x x x x x x C}
+  2 {(A) x x x x x x x x x x x B} 
+  1 {(A) (B) (C)}
+}
+
+do_execsql_test 1.5.0 {
+  CREATE VIRTUAL TABLE x1 USING fts3(x);
+  INSERT INTO x1 VALUES('A A A');
+  INSERT INTO x1 VALUES('A A A');
+}
+do_execsql_test 1.5.1 {
+  SELECT offsets(x1) FROM x1 WHERE x1 MATCH 'a OR b AND c NEAR d'
+} {
+  {0 0 0 1 0 0 2 1 0 0 4 1} 
+  {0 0 0 1 0 0 2 1 0 0 4 1}
+}
+
+
+set sqlite_fts3_enable_parentheses 0
+finish_test
diff --git a/test/fts3prefix.test b/test/fts3prefix.test
new file mode 100644
index 0000000000000000000000000000000000000000..e8d2b2b5fb25113b53ef5f31cbc4b637b027f2a1
--- /dev/null
+++ b/test/fts3prefix.test
@@ -0,0 +1,295 @@
+# 2011 May 04
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS3 module.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix fts3prefix
+
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+# This proc tests that the prefixes index appears to represent the same content
+# as the terms index.
+#
+proc fts3_terms_and_prefixes {db tbl prefixlengths} {
+
+  set iIndex 0
+  foreach len $prefixlengths {
+    incr iIndex
+    $db eval {
+      DROP TABLE IF EXISTS fts3check1;
+      DROP TABLE IF EXISTS fts3check2;
+    }
+    $db eval "CREATE VIRTUAL TABLE fts3check1 USING fts4term($tbl, 0);"
+    $db eval "CREATE VIRTUAL TABLE fts3check2 USING fts4term($tbl, $iIndex);"
+
+    $db eval {
+      DROP TABLE IF EXISTS temp.terms;
+      DROP TABLE IF EXISTS temp.prefixes;
+      CREATE TEMP TABLE terms AS SELECT * FROM fts3check1;
+      CREATE TEMP TABLE prefixes AS SELECT * FROM fts3check2;
+      CREATE INDEX temp.idx ON prefixes(term);
+      DROP TABLE fts3check1;
+      DROP TABLE fts3check2;
+    }
+
+    set nExpect 0
+    $db eval { SELECT term, docid, col, pos FROM temp.terms } a {
+      if {[string length $a(term)]<$len} continue
+      incr nExpect
+      set prefix [string range $a(term) 0 [expr $len-1]]
+      set r [$db one { 
+        SELECT count(*) FROM temp.prefixes WHERE 
+        term = $prefix AND docid = $a(docid) AND col = $a(col) AND pos = $a(pos)
+      }]
+      if {$r != 1} {
+        error "$t, $a(docid), $a(col), $a(pos)"
+      }
+    }
+
+    set nCount [$db one {SELECT count(*) FROM temp.prefixes}]
+    if {$nCount != $nExpect} {
+      error "prefixes.count(*) is $nCount expected $nExpect"
+    }
+  
+    execsql { DROP TABLE temp.prefixes }
+    execsql { DROP TABLE temp.terms }
+
+    set list [list]
+    $db eval "
+      SELECT sum( 1 << (16*(level%1024)) ) AS total, (level/1024) AS tree 
+      FROM ${tbl}_segdir GROUP BY tree
+    " {
+      lappend list [list $total $tree]
+    }
+
+    if { [lsort -integer -index 0 $list] != [lsort -integer -index 1 $list] } {
+      error "inconsistent tree structures: $list"
+    }
+  }
+
+  return ""
+}
+proc fts3_tap_test {tn db tbl lens} {
+  uplevel [list do_test $tn [list fts3_terms_and_prefixes $db $tbl $lens] ""]
+}
+
+#-------------------------------------------------------------------------
+# Test cases 1.* are a sanity check. They test that the prefixes index is
+# being constructed correctly for the simplest possible case.
+#
+do_execsql_test 1.1 {
+  CREATE VIRTUAL TABLE t1 USING fts4(prefix='1,3,6');
+
+  CREATE VIRTUAL TABLE p1 USING fts4term(t1, 1);
+  CREATE VIRTUAL TABLE p2 USING fts4term(t1, 2);
+  CREATE VIRTUAL TABLE p3 USING fts4term(t1, 3);
+  CREATE VIRTUAL TABLE terms USING fts4term(t1);
+}
+do_execsql_test 1.2 {
+  INSERT INTO t1 VALUES('sqlite mysql firebird');
+}
+do_execsql_test 1.3.1 { SELECT term FROM p1 } {f m s}
+do_execsql_test 1.3.2 { SELECT term FROM p2 } {fir mys sql}
+do_execsql_test 1.3.3 { SELECT term FROM p3 } {firebi sqlite}
+do_execsql_test 1.4 {
+  SELECT term FROM terms;
+} {firebird mysql sqlite}
+
+fts3_tap_test 1.5 db t1 {1 3 6}
+
+#-------------------------------------------------------------------------
+# A slightly more complicated dataset. This test also verifies that DELETE
+# operations do not corrupt the prefixes index.
+#
+do_execsql_test 2.1 {
+  INSERT INTO t1 VALUES('FTS3 and FTS4 are an SQLite virtual table modules');
+  INSERT INTO t1 VALUES('that allows users to perform full-text searches on');
+  INSERT INTO t1 VALUES('a set of documents. The most common (and');
+  INSERT INTO t1 VALUES('effective) way to describe full-text searches is');
+  INSERT INTO t1 VALUES('"what Google, Yahoo and Altavista do with');
+  INSERT INTO t1 VALUES('documents placed on the World Wide Web". Users');
+  INSERT INTO t1 VALUES('input a term, or series of terms, perhaps');
+  INSERT INTO t1 VALUES('connected by a binary operator or grouped together');
+  INSERT INTO t1 VALUES('into a phrase, and the full-text query system');
+  INSERT INTO t1 VALUES('finds the set of documents that best matches those');
+  INSERT INTO t1 VALUES('terms considering the operators and groupings the');
+  INSERT INTO t1 VALUES('user has specified. This article describes the');
+  INSERT INTO t1 VALUES('deployment and usage of FTS3 and FTS4.');
+  INSERT INTO t1 VALUES('FTS1 and FTS2 are obsolete full-text search');
+  INSERT INTO t1 VALUES('modules for SQLite. There are known issues with');
+  INSERT INTO t1 VALUES('these older modules and their use should be');
+  INSERT INTO t1 VALUES('avoided. Portions of the original FTS3 code were');
+  INSERT INTO t1 VALUES('contributed to the SQLite project by Scott Hess of');
+  INSERT INTO t1 VALUES('Google. It is now developed and maintained as part');
+  INSERT INTO t1 VALUES('of SQLite. ');
+}
+fts3_tap_test 2.2 db t1 {1 3 6}
+do_execsql_test 2.3 { DELETE FROM t1 WHERE docid%2; }
+fts3_tap_test 2.4 db t1 {1 3 6}
+
+do_execsql_test 2.5 { INSERT INTO t1(t1) VALUES('optimize') }
+fts3_tap_test 2.6 db t1 {1 3 6}
+
+do_execsql_test 3.1 {
+  CREATE VIRTUAL TABLE t2 USING fts4(prefix='1,2,3');
+  INSERT INTO t2 VALUES('On 12 September the wind direction turned and');
+  INSERT INTO t2 VALUES('William''s fleet sailed. A storm blew up and the');
+  INSERT INTO t2 VALUES('fleet was forced to take shelter at');
+  INSERT INTO t2 VALUES('Saint-Valery-sur-Somme and again wait for the wind');
+  INSERT INTO t2 VALUES('to change. On 27 September the Norman fleet');
+  INSERT INTO t2 VALUES('finally set sail, landing in England at Pevensey');
+  INSERT INTO t2 VALUES('Bay (Sussex) on 28 September. William then moved');
+  INSERT INTO t2 VALUES('to Hastings, a few miles to the east, where he');
+  INSERT INTO t2 VALUES('built a prefabricated wooden castle for a base of');
+  INSERT INTO t2 VALUES('operations. From there, he ravaged the hinterland');
+  INSERT INTO t2 VALUES('and waited for Harold''s return from the north.');
+  INSERT INTO t2 VALUES('On 12 September the wind direction turned and');
+  INSERT INTO t2 VALUES('William''s fleet sailed. A storm blew up and the');
+  INSERT INTO t2 VALUES('fleet was forced to take shelter at');
+  INSERT INTO t2 VALUES('Saint-Valery-sur-Somme and again wait for the wind');
+  INSERT INTO t2 VALUES('to change. On 27 September the Norman fleet');
+  INSERT INTO t2 VALUES('finally set sail, landing in England at Pevensey');
+  INSERT INTO t2 VALUES('Bay (Sussex) on 28 September. William then moved');
+  INSERT INTO t2 VALUES('to Hastings, a few miles to the east, where he');
+  INSERT INTO t2 VALUES('built a prefabricated wooden castle for a base of');
+  INSERT INTO t2 VALUES('operations. From there, he ravaged the hinterland');
+  INSERT INTO t2 VALUES('and waited for Harold''s return from the north.');
+}
+
+fts3_tap_test 3.2 db t2 {1 2 3}
+do_execsql_test 3.3 { SELECT optimize(t2) FROM t2 LIMIT 1 } {{Index optimized}}
+fts3_tap_test 3.4 db t2 {1 2 3}
+
+
+#-------------------------------------------------------------------------
+# Simple tests for reading the prefix-index.
+#
+do_execsql_test 4.1 {
+  CREATE VIRTUAL TABLE t3 USING fts4(prefix="1,4");
+  INSERT INTO t3 VALUES('one two three');
+  INSERT INTO t3 VALUES('four five six');
+  INSERT INTO t3 VALUES('seven eight nine');
+}
+do_execsql_test 4.2 {
+  SELECT * FROM t3 WHERE t3 MATCH 'f*'
+} {{four five six}}
+do_execsql_test 4.3 {
+  SELECT * FROM t3 WHERE t3 MATCH 'four*'
+} {{four five six}}
+do_execsql_test 4.4 {
+  SELECT * FROM t3 WHERE t3 MATCH 's*'
+} {{four five six} {seven eight nine}}
+do_execsql_test 4.5 {
+  SELECT * FROM t3 WHERE t3 MATCH 'sev*'
+} {{seven eight nine}}
+do_execsql_test 4.6 {
+  SELECT * FROM t3 WHERE t3 MATCH 'one*'
+} {{one two three}}
+
+#-------------------------------------------------------------------------
+# Syntax tests.
+#
+do_catchsql_test 5.1 {
+  CREATE VIRTUAL TABLE t4 USING fts4(prefix="abc");
+} {1 {error parsing prefix parameter: abc}}
+do_catchsql_test 5.2 {
+  CREATE VIRTUAL TABLE t4 USING fts4(prefix="");
+} {0 {}}
+do_catchsql_test 5.3 {
+  CREATE VIRTUAL TABLE t5 USING fts4(prefix="-1");
+} {1 {error parsing prefix parameter: -1}}
+
+#-------------------------------------------------------------------------
+# Prefix indexes of size 0 are ignored. Demonstrate this by showing that
+# adding prefix=0 does not change the contents of the %_segdir table.
+#
+reset_db
+do_execsql_test 6.1.1 {
+  CREATE VIRTUAL TABLE t1 USING fts4(prefix=0);
+  CREATE VIRTUAL TABLE t2 USING fts4;
+  INSERT INTO t1 VALUES('Twas Mulga Bill, from Eaglehawk, ');
+  INSERT INTO t2 VALUES('Twas Mulga Bill, from Eaglehawk, ');
+} {}
+do_execsql_test 6.1.2 {
+  SELECT md5sum(quote(root)) FROM t1_segdir;
+} [db eval {SELECT md5sum(quote(root)) FROM t2_segdir}]
+
+reset_db
+do_execsql_test 6.2.1 {
+  CREATE VIRTUAL TABLE t1 USING fts4(prefix="1,0,2");
+  CREATE VIRTUAL TABLE t2 USING fts4(prefix="1,2");
+  INSERT INTO t1 VALUES('that caught the cycling craze;');
+  INSERT INTO t2 VALUES('that caught the cycling craze;');
+} {}
+do_execsql_test 6.2.2 {
+  SELECT md5sum(quote(root)) FROM t1_segdir;
+} [db eval {SELECT md5sum(quote(root)) FROM t2_segdir}]
+
+reset_db
+do_execsql_test 6.3.1 {
+  CREATE VIRTUAL TABLE t1 USING fts4(prefix="1,3,2");
+  CREATE VIRTUAL TABLE t2 USING fts4(prefix="1,2");
+  INSERT INTO t1 VALUES('He turned away the good old horse');
+  INSERT INTO t2 VALUES('He turned away the good old horse');
+} {}
+do_test 6.3.2 {
+  set one [db eval {SELECT md5sum(quote(root)) FROM t1_segdir}]
+  set two [db eval {SELECT md5sum(quote(root)) FROM t2_segdir}]
+  expr {$one == $two}
+} 0
+
+reset_db
+do_execsql_test 6.4.1 {
+  CREATE VIRTUAL TABLE t1 USING fts4(prefix="1,600,2");
+  CREATE VIRTUAL TABLE t2 USING fts4(prefix="1,2");
+  INSERT INTO t1 VALUES('that served him many days;');
+  INSERT INTO t2 VALUES('that served him many days;');
+} {}
+do_execsql_test 6.4.2 {
+  SELECT md5sum(quote(root)) FROM t1_segdir;
+} [db eval {SELECT md5sum(quote(root)) FROM t2_segdir}]
+
+reset_db
+do_execsql_test 6.5.1 {
+  CREATE VIRTUAL TABLE t1 USING fts4(prefix="2147483647,2147483648,2147483649");
+  CREATE VIRTUAL TABLE t2 USING fts4(prefix=);
+  INSERT INTO t1 VALUES('He dressed himself in cycling clothes');
+  INSERT INTO t2 VALUES('He dressed himself in cycling clothes');
+} {}
+do_execsql_test 6.5.2 {
+  SELECT md5sum(quote(root)) FROM t1_segdir;
+} [db eval {SELECT md5sum(quote(root)) FROM t2_segdir}]
+
+
+do_execsql_test 7.0 {
+  CREATE VIRTUAL TABLE t6 USING fts4(x,order=DESC);
+  INSERT INTO t6(docid, x) VALUES(-1,'a b');
+  INSERT INTO t6(docid, x) VALUES(1, 'b');
+}
+do_execsql_test 7.1 {
+  SELECT docid FROM t6 WHERE t6 MATCH '"a* b"';
+} {-1}
+do_execsql_test 7.2 {
+  SELECT docid FROM t6 WHERE t6 MATCH 'a*';
+} {-1}
+do_execsql_test 7.3 {
+  SELECT docid FROM t6 WHERE t6 MATCH 'a* b';
+} {-1}
+
+
+
+finish_test
diff --git a/test/fts3prefix2.test b/test/fts3prefix2.test
new file mode 100644
index 0000000000000000000000000000000000000000..e033fb6bcb82e2158c7ed1eb0af77786bd695813
--- /dev/null
+++ b/test/fts3prefix2.test
@@ -0,0 +1,61 @@
+# 2012 January 25
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS3 module.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix fts3prefix2
+
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 { PRAGMA page_size = 512 }
+do_execsql_test 1.1 { 
+  CREATE VIRTUAL TABLE t1 USING fts4(x, prefix="2,3");
+
+  BEGIN;
+    INSERT INTO t1 VALUES('T TX T TX T TX T TX T TX');
+    INSERT INTO t1 SELECT * FROM t1;                       -- 2
+    INSERT INTO t1 SELECT * FROM t1;                       -- 4
+    INSERT INTO t1 SELECT * FROM t1;                       -- 8
+    INSERT INTO t1 SELECT * FROM t1;                       -- 16
+    INSERT INTO t1 SELECT * FROM t1;                       -- 32
+    INSERT INTO t1 SELECT * FROM t1;                       -- 64
+    INSERT INTO t1 SELECT * FROM t1;                       -- 128
+    INSERT INTO t1 SELECT * FROM t1;                       -- 256
+    INSERT INTO t1 SELECT * FROM t1;                       -- 512
+    INSERT INTO t1 SELECT * FROM t1;                       -- 1024
+    INSERT INTO t1 SELECT * FROM t1;                       -- 2048
+  COMMIT;
+}
+
+do_execsql_test 1.2 {
+  INSERT INTO t1 SELECT * FROM t1 LIMIT 10;
+  INSERT INTO t1 SELECT * FROM t1 LIMIT 10;
+  INSERT INTO t1 SELECT * FROM t1 LIMIT 10;
+  DELETE FROM t1 WHERE docid > 5;
+}
+
+do_execsql_test 1.3 {
+  SELECT * FROM t1 WHERE t1 MATCH 'T*';
+} {
+  {T TX T TX T TX T TX T TX}
+  {T TX T TX T TX T TX T TX}
+  {T TX T TX T TX T TX T TX}
+  {T TX T TX T TX T TX T TX}
+  {T TX T TX T TX T TX T TX}
+}
+
+finish_test
diff --git a/test/fts3query.test b/test/fts3query.test
new file mode 100644
index 0000000000000000000000000000000000000000..70ee005291e1b118a89a56959b431c6d23c48092
--- /dev/null
+++ b/test/fts3query.test
@@ -0,0 +1,293 @@
+# 2009 December 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains tests of fts3 queries that have been useful during
+# the development process as well as some that have been useful in tracking
+# down bugs. They are not focused on any particular functionality.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If this build does not include FTS3, skip the tests in this file.
+#
+ifcapable !fts3 { finish_test ; return }
+source $testdir/malloc_common.tcl
+source $testdir/fts3_common.tcl
+set DO_MALLOC_TEST 0
+
+set testprefix fts3query
+
+do_test fts3query-1.1 {
+  execsql {
+    CREATE VIRTUAL TABLE t1 USING fts3(x);
+    BEGIN;
+      INSERT INTO t1 VALUES('The source code for SQLite is in the public');
+  }
+} {}
+
+do_select_test fts3query-1.2 {
+  SELECT * FROM t1;
+} {{The source code for SQLite is in the public}}
+do_select_test fts3query-1.3 {
+  SELECT * FROM t1 WHERE t1 MATCH 'sqlite'
+} {{The source code for SQLite is in the public}}
+
+do_test fts3query-1.4 { execsql {COMMIT} } {}
+
+do_select_test fts3query-1.5 {
+  SELECT * FROM t1;
+} {{The source code for SQLite is in the public}}
+do_select_test fts3query-1.6 {
+  SELECT * FROM t1 WHERE t1 MATCH 'sqlite'
+} {{The source code for SQLite is in the public}}
+
+
+set sqlite_fts3_enable_parentheses 1
+do_test fts3query-2.1 {
+  execsql {
+    CREATE VIRTUAL TABLE zoink USING fts3;
+    INSERT INTO zoink VALUES('The apple falls far from the tree');
+  }
+} {}
+do_test fts3query-2.2 {
+  execsql {
+    SELECT docid FROM zoink WHERE zoink MATCH '(apple oranges) AND apple'
+  }
+} {}
+do_test fts3query-2.3 {
+  execsql {
+    SELECT docid FROM zoink WHERE zoink MATCH 'apple AND (oranges apple)'
+  }
+} {}
+set sqlite_fts3_enable_parentheses 0
+
+do_test fts3query-3.1 {
+  execsql {
+    CREATE VIRTUAL TABLE foobar using FTS3(description, tokenize porter);
+    INSERT INTO foobar (description) values ('
+      Filed under: Emerging Technologies, EV/Plug-in, Hybrid, Chevrolet, GM, 
+      ZENN 2011 Chevy Volt - Click above for high-res image gallery There are 
+      16 days left in the month of December. Besides being time for most 
+      Americans to kick their Christmas shopping sessions into high gear and
+      start planning their resolutions for 2010, it also means that there''s
+      precious little time for EEStor to "deliver functional technology" to
+      Zenn Motors as promised. Still, the promises held out by the secretive
+      company are too great for us to forget about entirely. We''d love for
+      EEStor''s claims to be independently verified and proven accurate, as
+      would just about anyone else looking to break free of petroleum in fav
+    '); 
+  }
+} {}
+
+do_test fts3query-3.2 {
+  execsql { SELECT docid FROM foobar WHERE description MATCH '"high sp d"' }
+} {}
+
+proc mit {blob} {
+  set scan(littleEndian) i*
+  set scan(bigEndian) I*
+  binary scan $blob $scan($::tcl_platform(byteOrder)) r
+  return $r
+}
+db func mit mit
+
+do_test fts3query-3.3 {
+  execsql { SELECT mit(matchinfo(foobar)) FROM foobar WHERE foobar MATCH 'the' }
+} {{1 1 3 3 1}}
+
+# The following tests check that ticket 775b39dd3c has been fixed.
+#
+do_test fts3query-4.1 {
+  execsql {
+    DROP TABLE IF EXISTS t1;
+    CREATE TABLE t1(number INTEGER PRIMARY KEY, date);
+    CREATE INDEX i1 ON t1(date);
+    CREATE VIRTUAL TABLE ft USING fts3(title);
+    CREATE TABLE bt(title);
+  }
+} {}
+do_eqp_test fts3query-4.2 {
+  SELECT t1.number FROM t1, ft WHERE t1.number=ft.rowid ORDER BY t1.date
+} {
+  QUERY PLAN
+  |--SCAN t1 USING COVERING INDEX i1
+  `--SCAN ft VIRTUAL TABLE INDEX 1:
+}
+do_eqp_test fts3query-4.3 {
+  SELECT t1.number FROM ft, t1 WHERE t1.number=ft.rowid ORDER BY t1.date
+} {
+  QUERY PLAN
+  |--SCAN t1 USING COVERING INDEX i1
+  `--SCAN ft VIRTUAL TABLE INDEX 1:
+}
+do_eqp_test fts3query-4.4 {
+  SELECT t1.number FROM t1, bt WHERE t1.number=bt.rowid ORDER BY t1.date
+} {
+  QUERY PLAN
+  |--SCAN t1 USING COVERING INDEX i1
+  `--SEARCH bt USING INTEGER PRIMARY KEY (rowid=?)
+}
+do_eqp_test fts3query-4.5 {
+  SELECT t1.number FROM bt, t1 WHERE t1.number=bt.rowid ORDER BY t1.date
+} {
+  QUERY PLAN
+  |--SCAN t1 USING COVERING INDEX i1
+  `--SEARCH bt USING INTEGER PRIMARY KEY (rowid=?)
+}
+
+
+# Test that calling matchinfo() with the wrong number of arguments, or with
+# an invalid argument returns an error.
+#
+do_execsql_test 5.1 {
+  CREATE VIRTUAL TABLE t2 USING FTS4;
+  INSERT INTO t2 VALUES('it was the first time in history');
+}
+do_select_tests 5.2 -errorformat {
+  wrong number of arguments to function %s()
+} {
+  1 "SELECT matchinfo() FROM t2 WHERE t2 MATCH 'history'"       matchinfo
+  3 "SELECT snippet(t2, 1, 2, 3, 4, 5, 6) FROM t2 WHERE t2 MATCH 'history'" 
+    snippet
+}
+do_select_tests 5.3 -errorformat {
+  illegal first argument to %s
+} {
+  1 "SELECT matchinfo(content) FROM t2 WHERE t2 MATCH 'history'" matchinfo
+  2 "SELECT offsets(content) FROM t2 WHERE t2 MATCH 'history'"   offsets
+  3 "SELECT snippet(content) FROM t2 WHERE t2 MATCH 'history'"   snippet
+  4 "SELECT optimize(content) FROM t2 WHERE t2 MATCH 'history'"  optimize
+}
+sqlite3_db_config db DEFENSIVE 0
+do_execsql_test 5.4.0 { UPDATE t2_content SET c0content = X'1234' }
+do_select_tests 5.4 -errorformat {
+  illegal first argument to %s
+} {
+  1 "SELECT matchinfo(content) FROM t2 WHERE t2 MATCH 'history'" matchinfo
+  2 "SELECT offsets(content) FROM t2 WHERE t2 MATCH 'history'"   offsets
+  3 "SELECT snippet(content) FROM t2 WHERE t2 MATCH 'history'"   snippet
+  4 "SELECT optimize(content) FROM t2 WHERE t2 MATCH 'history'"  optimize
+}
+do_catchsql_test 5.5.1 {
+  SELECT matchinfo(t2, 'abcd') FROM t2 WHERE t2 MATCH 'history'
+} {1 {unrecognized matchinfo request: d}}
+
+do_execsql_test 5.5 { DROP TABLE t2 }
+
+
+# Test the snippet() function with 1 to 6 arguments.
+# 
+do_execsql_test 6.1 {
+  CREATE VIRTUAL TABLE t3 USING FTS4(a, b);
+  INSERT INTO t3 VALUES('no gestures', 'another intriguing discovery by observing the hand gestures (called beats) people make while speaking. Research has shown that such gestures do more than add visual emphasis to our words (many people gesture while they''re on the telephone, for example); it seems they actually help our brains find words');
+}
+do_select_tests 6.2 {
+  1 "SELECT snippet(t3) FROM t3 WHERE t3 MATCH 'gestures'"
+  {{<b>...</b>hand <b>gestures</b> (called beats) people make while speaking. Research has shown that such <b>gestures</b> do<b>...</b>}}
+
+  2 "SELECT snippet(t3, 'XXX') FROM t3 WHERE t3 MATCH 'gestures'" 
+  {{<b>...</b>hand XXXgestures</b> (called beats) people make while speaking. Research has shown that such XXXgestures</b> do<b>...</b>}}
+
+  3 "SELECT snippet(t3, 'XXX', 'YYY') FROM t3 WHERE t3 MATCH 'gestures'" 
+  {{<b>...</b>hand XXXgesturesYYY (called beats) people make while speaking. Research has shown that such XXXgesturesYYY do<b>...</b>}}
+
+  4 "SELECT snippet(t3, 'XXX', 'YYY', 'ZZZ') FROM t3 WHERE t3 MATCH 'gestures'" 
+  {{ZZZhand XXXgesturesYYY (called beats) people make while speaking. Research has shown that such XXXgesturesYYY doZZZ}}
+
+  5 "SELECT snippet(t3, 'XXX', 'YYY', 'ZZZ', 1) FROM t3 WHERE t3 MATCH 'gestures'" 
+  {{ZZZhand XXXgesturesYYY (called beats) people make while speaking. Research has shown that such XXXgesturesYYY doZZZ}}
+
+  6 "SELECT snippet(t3, 'XXX', 'YYY', 'ZZZ', 0) FROM t3 WHERE t3 MATCH 'gestures'" 
+  {{no XXXgesturesYYY}}
+
+  7 "SELECT snippet(t3, 'XXX', 'YYY', 'ZZZ', 1, 5) FROM t3 WHERE t3 MATCH 'gestures'" 
+  {{ZZZthe hand XXXgesturesYYY (called beatsZZZ}}
+}
+
+# Test some range queries on the rowid field.
+# 
+do_execsql_test 7.1 {
+  CREATE VIRTUAL TABLE ft4 USING fts4(x);
+  CREATE TABLE t4(x);
+}
+
+set SMALLINT -9223372036854775808
+set LARGEINT  9223372036854775807
+do_test 7.2 {
+  db transaction {
+    foreach {iFirst nEntry} [subst {
+      0                      100
+      $SMALLINT              100
+      [expr $LARGEINT - 99]  100
+    }] {
+      for {set i 0} {$i < $nEntry} {incr i} {
+        set iRowid [expr $i + $iFirst]
+        execsql {
+          INSERT INTO ft4(rowid, x) VALUES($iRowid, 'x y z');
+          INSERT INTO  t4(rowid, x) VALUES($iRowid, 'x y z');
+        }
+      }
+    }
+  }
+} {}
+
+foreach {tn iFirst iLast} [subst {
+  1   5 10
+  2   $SMALLINT [expr $SMALLINT+5]
+  3   $SMALLINT [expr $SMALLINT+50]
+  4   [expr $LARGEINT-5] $LARGEINT
+  5   $LARGEINT $LARGEINT
+  6   $SMALLINT $LARGEINT
+  7   $SMALLINT $SMALLINT
+  8   $LARGEINT $SMALLINT
+}] {
+  set res [db eval { 
+    SELECT rowid FROM t4 WHERE rowid BETWEEN $iFirst AND $iLast 
+  } ]
+
+  do_execsql_test 7.2.$tn.1.[llength $res] {
+    SELECT rowid FROM ft4 WHERE rowid BETWEEN $iFirst AND $iLast
+  } $res
+  set res [db eval { 
+    SELECT rowid FROM t4 WHERE rowid BETWEEN $iFirst AND $iLast 
+     ORDER BY +rowid DESC
+  } ]
+  do_execsql_test 7.2.$tn.2.[llength $res] {
+    SELECT rowid FROM ft4 WHERE rowid BETWEEN $iFirst AND $iLast
+    ORDER BY rowid DESC
+  } $res
+}
+
+foreach ii [db eval {SELECT rowid FROM t4}] {
+  set res1 [db eval {SELECT rowid FROM t4 WHERE rowid > $ii}]
+  set res2 [db eval {SELECT rowid FROM t4 WHERE rowid < $ii}]
+  set res1s [db eval {SELECT rowid FROM t4 WHERE rowid > $ii ORDER BY +rowid DESC}]
+  set res2s [db eval {SELECT rowid FROM t4 WHERE rowid < $ii ORDER BY +rowid DESC}]
+
+  do_execsql_test 7.3.$ii.1 {
+    SELECT rowid FROM ft4 WHERE rowid > $ii
+  } $res1
+
+  do_execsql_test 7.3.$ii.2 {
+    SELECT rowid FROM ft4 WHERE rowid < $ii
+  } $res2
+
+  do_execsql_test 7.3.$ii.3 {
+    SELECT rowid FROM ft4 WHERE rowid > $ii ORDER BY rowid DESC
+  } $res1s
+
+  do_execsql_test 7.3.$ii.4 {
+    SELECT rowid FROM ft4 WHERE rowid < $ii ORDER BY rowid DESC
+  } $res2s
+}
+
+finish_test
diff --git a/test/fts3rank.test b/test/fts3rank.test
new file mode 100644
index 0000000000000000000000000000000000000000..fd1a1c89d769c0e31efbb4924d2f1d45215ff856
--- /dev/null
+++ b/test/fts3rank.test
@@ -0,0 +1,69 @@
+# 2017 October 7
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS3 module.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix fts3rank
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+install_fts3_rank_function db
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts3(a, b);
+  INSERT INTO t1 VALUES('one two', 'one');
+  INSERT INTO t1 VALUES('one two', 'three');
+  INSERT INTO t1 VALUES('one two', 'two');
+}
+
+do_execsql_test 1.1 {
+  SELECT * FROM t1 WHERE t1 MATCH 'one' 
+  ORDER BY rank(matchinfo(t1), 1.0, 1.0) DESC, rowid
+} {
+  {one two} one
+  {one two} three
+  {one two} two
+}
+
+do_execsql_test 1.2 {
+  SELECT * FROM t1 WHERE t1 MATCH 'two' 
+  ORDER BY rank(matchinfo(t1), 1.0, 1.0) DESC, rowid
+} {
+  {one two} two
+  {one two} one
+  {one two} three
+}
+
+do_catchsql_test 1.3 {
+  SELECT * FROM t1 ORDER BY rank(matchinfo(t1), 1.0, 1.0) DESC, rowid
+} {1 {invalid matchinfo blob passed to function rank()}}
+
+do_catchsql_test 1.4 {
+  SELECT * FROM t1 ORDER BY rank(x'0000000000000000') DESC, rowid
+} {0 {{one two} one {one two} three {one two} two}}
+
+if {$tcl_platform(byteOrder)=="littleEndian"} {
+  do_catchsql_test 1.5le {
+    SELECT * FROM t1 ORDER BY rank(x'0100000001000000') DESC, rowid
+  } {1 {invalid matchinfo blob passed to function rank()}}
+} else {
+  do_catchsql_test 1.5be {
+    SELECT * FROM t1 ORDER BY rank(x'0000000100000001') DESC, rowid
+  } {1 {invalid matchinfo blob passed to function rank()}}
+}
+
+finish_test
diff --git a/test/fts3rnd.test b/test/fts3rnd.test
new file mode 100644
index 0000000000000000000000000000000000000000..97af54925f3953e866468ddac7cc3afa8736b471
--- /dev/null
+++ b/test/fts3rnd.test
@@ -0,0 +1,460 @@
+# 2009 December 03
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Brute force (random data) tests for FTS3.
+#
+
+#-------------------------------------------------------------------------
+#
+# The FTS3 tests implemented in this file focus on testing that FTS3
+# returns the correct set of documents for various types of full-text
+# query. This is done using pseudo-randomly generated data and queries.
+# The expected result of each query is calculated using Tcl code.
+#
+#   1. The database is initialized to contain a single table with three
+#      columns. 100 rows are inserted into the table. Each of the three
+#      values in each row is a document consisting of between 0 and 100
+#      terms. Terms are selected from a vocabulary of $G(nVocab) terms.
+#
+#   2. The following is performed 100 times:
+#
+#      a. A row is inserted into the database. The row contents are 
+#         generated as in step 1. The docid is a pseudo-randomly selected
+#         value between 0 and 1000000.
+# 
+#      b. A psuedo-randomly selected row is updated. One of its columns is
+#         set to contain a new document generated in the same way as the
+#         documents in step 1.
+# 
+#      c. A psuedo-randomly selected row is deleted.
+# 
+#      d. For each of several types of fts3 queries, 10 SELECT queries
+#         of the form:
+# 
+#           SELECT docid FROM <tbl> WHERE <tbl> MATCH '<query>'
+# 
+#         are evaluated. The results are compared to those calculated by
+#         Tcl code in this file. The patterns used for the different query
+#         types are:
+# 
+#           1.  query = <term>
+#           2.  query = <prefix>
+#           3.  query = "<term> <term>"
+#           4.  query = "<term> <term> <term>"
+#           5.  query = "<prefix> <prefix> <prefix>"
+#           6.  query = <term> NEAR <term>
+#           7.  query = <term> NEAR/11 <term> NEAR/11 <term>
+#           8.  query = <term> OR <term>
+#           9.  query = <term> NOT <term>
+#           10. query = <term> AND <term>
+#           11. query = <term> NEAR <term> OR <term> NEAR <term>
+#           12. query = <term> NEAR <term> NOT <term> NEAR <term>
+#           13. query = <term> NEAR <term> AND <term> NEAR <term>
+# 
+#         where <term> is a term psuedo-randomly selected from the vocabulary
+#         and prefix is the first 2 characters of such a term followed by
+#         a "*" character.
+#     
+#      Every second iteration, steps (a) through (d) above are performed
+#      within a single transaction. This forces the queries in (d) to
+#      read data from both the database and the in-memory hash table
+#      that caches the full-text index entries created by steps (a), (b)
+#      and (c) until the transaction is committed.
+#
+# The procedure above is run 5 times, using advisory fts3 node sizes of 50,
+# 500, 1000 and 2000 bytes.
+#
+# After the test using an advisory node-size of 50, an OOM test is run using
+# the database. This test is similar to step (d) above, except that it tests
+# the effects of transient and persistent OOM conditions encountered while
+# executing each query.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If this build does not include FTS3, skip the tests in this file.
+#
+ifcapable !fts3 { finish_test ; return }
+source $testdir/fts3_common.tcl
+source $testdir/malloc_common.tcl
+
+set G(nVocab) 100
+
+set nVocab 100
+set lVocab [list]
+
+expr srand(0)
+
+# Generate a vocabulary of nVocab words. Each word is 3 characters long.
+#
+set lChar {a b c d e f g h i j k l m n o p q r s t u v w x y z}
+for {set i 0} {$i < $nVocab} {incr i} {
+  set len [expr int(rand()*3)+2]
+  set    word [lindex $lChar [expr int(rand()*26)]]
+  append word [lindex $lChar [expr int(rand()*26)]]
+  if {$len>2} { append word [lindex $lChar [expr int(rand()*26)]] }
+  if {$len>3} { append word [lindex $lChar [expr int(rand()*26)]] }
+  lappend lVocab $word
+}
+
+proc random_term {} {
+  lindex $::lVocab [expr {int(rand()*$::nVocab)}]
+}
+
+# Return a document consisting of $nWord arbitrarily selected terms
+# from the $::lVocab list.
+#
+proc generate_doc {nWord} {
+  set doc [list]
+  for {set i 0} {$i < $nWord} {incr i} {
+    lappend doc [random_term]
+  }
+  return $doc
+}
+
+
+
+# Primitives to update the table.
+#
+unset -nocomplain t1
+proc insert_row {rowid} {
+  set a [generate_doc [expr int((rand()*100))]]
+  set b [generate_doc [expr int((rand()*100))]]
+  set c [generate_doc [expr int((rand()*100))]]
+  execsql { INSERT INTO t1(docid, a, b, c) VALUES($rowid, $a, $b, $c) }
+  set ::t1($rowid) [list $a $b $c]
+}
+proc delete_row {rowid} {
+  execsql { DELETE FROM t1 WHERE rowid = $rowid }
+  catch {unset ::t1($rowid)}
+}
+proc update_row {rowid} {
+  set cols {a b c}
+  set iCol [expr int(rand()*3)]
+  set doc  [generate_doc [expr int((rand()*100))]]
+  lset ::t1($rowid) $iCol $doc
+  execsql "UPDATE t1 SET [lindex $cols $iCol] = \$doc WHERE rowid = \$rowid"
+}
+
+proc simple_phrase {zPrefix} {
+  set ret [list]
+
+  set reg [string map {* {[^ ]*}} $zPrefix]
+  set reg " $reg "
+
+  foreach key [lsort -integer [array names ::t1]] {
+    set value $::t1($key)
+    set cnt [list]
+    foreach col $value {
+      if {[regexp $reg " $col "]} { lappend ret $key ; break }
+    }
+  }
+
+  #lsort -uniq -integer $ret
+  set ret
+}
+
+# This [proc] is used to test the FTS3 matchinfo() function.
+# 
+proc simple_token_matchinfo {zToken bDesc} {
+
+  set nDoc(0) 0
+  set nDoc(1) 0
+  set nDoc(2) 0
+  set nHit(0) 0
+  set nHit(1) 0
+  set nHit(2) 0
+
+  set dir -inc
+  if {$bDesc} { set dir -dec }
+
+  foreach key [array names ::t1] {
+    set value $::t1($key)
+    set a($key) [list]
+    foreach i {0 1 2} col $value {
+      set hit [llength [lsearch -all $col $zToken]]
+      lappend a($key) $hit
+      incr nHit($i) $hit
+      if {$hit>0} { incr nDoc($i) }
+    }
+  }
+
+  set ret [list]
+  foreach docid [lsort -integer $dir [array names a]] {
+    if { [lindex [lsort -integer $a($docid)] end] } {
+      set matchinfo [list 1 3]
+      foreach i {0 1 2} hit $a($docid) {
+        lappend matchinfo $hit $nHit($i) $nDoc($i)
+      }
+      lappend ret $docid $matchinfo
+    }
+  }
+
+  set ret
+} 
+
+proc simple_near {termlist nNear} {
+  set ret [list]
+
+  foreach {key value} [array get ::t1] {
+    foreach v $value {
+
+      set l [lsearch -exact -all $v [lindex $termlist 0]]
+      foreach T [lrange $termlist 1 end] {
+        set l2 [list]
+        foreach i $l {
+          set iStart [expr $i - $nNear - 1]
+          set iEnd [expr $i + $nNear + 1]
+          if {$iStart < 0} {set iStart 0}
+          foreach i2 [lsearch -exact -all [lrange $v $iStart $iEnd] $T] {
+            incr i2 $iStart
+            if {$i2 != $i} { lappend l2 $i2 } 
+          }
+        }
+        set l [lsort -uniq -integer $l2]
+      }
+
+      if {[llength $l]} {
+#puts "MATCH($key): $v"
+        lappend ret $key
+      } 
+    }
+  }
+
+  lsort -unique -integer $ret
+}
+
+# The following three procs:
+# 
+#   setup_not A B
+#   setup_or  A B
+#   setup_and A B
+#
+# each take two arguments. Both arguments must be lists of integer values
+# sorted by value. The return value is the list produced by evaluating
+# the equivalent of "A op B", where op is the FTS3 operator NOT, OR or
+# AND.
+#
+proc setop_not {A B} {
+  foreach b $B { set n($b) {} }
+  set ret [list]
+  foreach a $A { if {![info exists n($a)]} {lappend ret $a} }
+  return $ret
+}
+proc setop_or {A B} {
+  lsort -integer -uniq [concat $A $B]
+}
+proc setop_and {A B} {
+  foreach b $B { set n($b) {} }
+  set ret [list]
+  foreach a $A { if {[info exists n($a)]} {lappend ret $a} }
+  return $ret
+}
+
+proc mit {blob} {
+  set scan(littleEndian) i*
+  set scan(bigEndian) I*
+  binary scan $blob $scan($::tcl_platform(byteOrder)) r
+  return $r
+}
+db func mit mit
+set sqlite_fts3_enable_parentheses 1
+
+proc do_orderbydocid_test {tn sql res} {
+  uplevel [list do_select_test $tn.asc "$sql ORDER BY docid ASC" $res]
+  uplevel [list do_select_test $tn.desc "$sql ORDER BY docid DESC" \
+    [lsort -int -dec $res]
+  ]
+}
+
+set NUM_TRIALS 100
+
+foreach {nodesize order} {
+  50    DESC
+  50    ASC
+  500   ASC
+  1000  DESC
+  2000  ASC
+} {
+  catch { array unset ::t1 }
+  set testname "$nodesize/$order"
+
+  # Create the FTS3 table. Populate it (and the Tcl array) with 100 rows.
+  #
+  db transaction {
+    catchsql { DROP TABLE t1 }
+    execsql "CREATE VIRTUAL TABLE t1 USING fts4(a, b, c, order=$order)"
+    execsql "INSERT INTO t1(t1) VALUES('nodesize=$nodesize')"
+    for {set i 0} {$i < 100} {incr i} { insert_row $i }
+  }
+  
+  for {set iTest 1} {$iTest <= $NUM_TRIALS} {incr iTest} {
+    catchsql COMMIT
+
+    set DO_MALLOC_TEST 0
+    set nRep 10
+    if {$iTest==100 && $nodesize==50} { 
+      set DO_MALLOC_TEST 1 
+      set nRep 2
+    }
+
+    set ::testprefix fts3rnd-1.$testname.$iTest
+  
+    # Delete one row, update one row and insert one row.
+    #
+    set rows [array names ::t1]
+    set nRow [llength $rows]
+    set iUpdate [lindex $rows [expr {int(rand()*$nRow)}]]
+    set iDelete $iUpdate
+    while {$iDelete == $iUpdate} {
+      set iDelete [lindex $rows [expr {int(rand()*$nRow)}]]
+    }
+    set iInsert $iUpdate
+    while {[info exists ::t1($iInsert)]} {
+      set iInsert [expr {int(rand()*1000000)}]
+    }
+    execsql BEGIN
+      insert_row $iInsert
+      update_row $iUpdate
+      delete_row $iDelete
+    if {0==($iTest%2)} { execsql COMMIT }
+
+    if {0==($iTest%2)} { 
+      #do_test 0 { fts3_integrity_check t1 } ok 
+    }
+
+    # Pick 10 terms from the vocabulary. Check that the results of querying
+    # the database for the set of documents containing each of these terms
+    # is the same as the result obtained by scanning the contents of the Tcl 
+    # array for each term.
+    #
+    for {set i 0} {$i < 10} {incr i} {
+      set term [random_term]
+      do_select_test 1.$i.asc {
+        SELECT docid, mit(matchinfo(t1)) FROM t1 WHERE t1 MATCH $term
+        ORDER BY docid ASC
+      } [simple_token_matchinfo $term 0]
+      do_select_test 1.$i.desc {
+        SELECT docid, mit(matchinfo(t1)) FROM t1 WHERE t1 MATCH $term
+        ORDER BY docid DESC
+      } [simple_token_matchinfo $term 1]
+    }
+
+    # This time, use the first two characters of each term as a term prefix
+    # to query for. Test that querying the Tcl array produces the same results
+    # as querying the FTS3 table for the prefix.
+    #
+    for {set i 0} {$i < $nRep} {incr i} {
+      set prefix [string range [random_term] 0 end-1]
+      set match "${prefix}*"
+      do_orderbydocid_test 2.$i {
+        SELECT docid FROM t1 WHERE t1 MATCH $match
+      } [simple_phrase $match]
+    }
+
+    # Similar to the above, except for phrase queries.
+    #
+    for {set i 0} {$i < $nRep} {incr i} {
+      set term [list [random_term] [random_term]]
+      set match "\"$term\""
+      do_orderbydocid_test 3.$i {
+        SELECT docid FROM t1 WHERE t1 MATCH $match
+      } [simple_phrase $term]
+    }
+
+    # Three word phrases.
+    #
+    for {set i 0} {$i < $nRep} {incr i} {
+      set term [list [random_term] [random_term] [random_term]]
+      set match "\"$term\""
+      do_orderbydocid_test 4.$i {
+        SELECT docid FROM t1 WHERE t1 MATCH $match
+      } [simple_phrase $term]
+    }
+
+    # Three word phrases made up of term-prefixes.
+    #
+    for {set i 0} {$i < $nRep} {incr i} {
+      set    query "[string range [random_term] 0 end-1]* "
+      append query "[string range [random_term] 0 end-1]* "
+      append query "[string range [random_term] 0 end-1]*"
+
+      set match "\"$query\""
+      do_orderbydocid_test 5.$i {
+        SELECT docid FROM t1 WHERE t1 MATCH $match
+      } [simple_phrase $query]
+    }
+
+    # A NEAR query with terms as the arguments:
+    #
+    #     ... MATCH '$term1 NEAR $term2' ...
+    #
+    for {set i 0} {$i < $nRep} {incr i} {
+      set terms [list [random_term] [random_term]]
+      set match [join $terms " NEAR "]
+      do_orderbydocid_test 6.$i {
+        SELECT docid FROM t1 WHERE t1 MATCH $match 
+      } [simple_near $terms 10]
+    }
+
+    # A 3-way NEAR query with terms as the arguments.
+    #
+    for {set i 0} {$i < $nRep} {incr i} {
+      set terms [list [random_term] [random_term] [random_term]]
+      set nNear 11
+      set match [join $terms " NEAR/$nNear "]
+      do_orderbydocid_test 7.$i {
+        SELECT docid FROM t1 WHERE t1 MATCH $match
+      } [simple_near $terms $nNear]
+    }
+    
+    # Set operations on simple term queries.
+    #
+    foreach {tn op proc} {
+      8  OR  setop_or
+      9  NOT setop_not
+      10 AND setop_and
+    } {
+      for {set i 0} {$i < $nRep} {incr i} {
+        set term1 [random_term]
+        set term2 [random_term]
+        set match "$term1 $op $term2"
+        do_orderbydocid_test $tn.$i {
+          SELECT docid FROM t1 WHERE t1 MATCH $match
+        } [$proc [simple_phrase $term1] [simple_phrase $term2]]
+      }
+    }
+ 
+    # Set operations on NEAR queries.
+    #
+    foreach {tn op proc} {
+      11 OR  setop_or
+      12 NOT setop_not
+      13 AND setop_and
+    } {
+      for {set i 0} {$i < $nRep} {incr i} {
+        set term1 [random_term]
+        set term2 [random_term]
+        set term3 [random_term]
+        set term4 [random_term]
+        set match "$term1 NEAR $term2 $op $term3 NEAR $term4"
+        do_orderbydocid_test $tn.$i {
+          SELECT docid FROM t1 WHERE t1 MATCH $match
+        } [$proc                                  \
+            [simple_near [list $term1 $term2] 10] \
+            [simple_near [list $term3 $term4] 10]
+          ]
+      }
+    }
+
+    catchsql COMMIT
+  }
+}
+
+finish_test
diff --git a/test/fts3shared.test b/test/fts3shared.test
new file mode 100644
index 0000000000000000000000000000000000000000..0943c0510fcb6300b2be9bcbfd56c64c8c40c143
--- /dev/null
+++ b/test/fts3shared.test
@@ -0,0 +1,176 @@
+#
+# 2010 September 17
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is the interactions between the FTS3/4 module 
+# and shared-cache mode.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !fts3||!shared_cache {
+  finish_test
+  return
+}
+set ::testprefix fts3shared
+
+db close
+set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
+
+# Open two connections to the database in shared-cache mode.
+#
+sqlite3 db test.db
+sqlite3 db2 test.db
+
+# Create a virtual FTS3 table. Populate it with some initial data.
+#
+do_execsql_test fts3shared-1.1 {
+  CREATE VIRTUAL TABLE t1 USING fts3(x);
+  BEGIN;
+  INSERT INTO t1 VALUES('We listened and looked sideways up!');
+  INSERT INTO t1 VALUES('Fear at my heart, as at a cup,');
+  INSERT INTO t1 VALUES('My life-blood seemed to sip!');
+  INSERT INTO t1 VALUES('The stars were dim, and thick the night');
+  COMMIT;
+} {}
+
+# Open a write transaction and insert rows into the FTS3 table. This takes
+# a write-lock on the underlying t1_content table.
+#
+do_execsql_test fts3shared-1.2 {
+  BEGIN;
+    INSERT INTO t1 VALUES('The steersman''s face by his lamp gleamed white;');
+} {}
+
+# Now try a SELECT on the full-text table. This particular SELECT does not
+# read data from the %_content table. But it still attempts to obtain a lock
+# on that table and so the SELECT fails.
+#
+do_test fts3shared-1.3 {
+  catchsql {  
+    BEGIN;
+      SELECT rowid FROM t1 WHERE t1 MATCH 'stars' 
+  } db2
+} {1 {database table is locked}}
+
+# Verify that the first connection can commit its transaction.
+#
+do_test fts3shared-1.4 { sqlite3_get_autocommit db } 0
+do_execsql_test fts3shared-1.5 { COMMIT } {}
+do_test fts3shared-1.6 { sqlite3_get_autocommit db } 1
+
+# Verify that the second connection still has an open transaction.
+#
+do_test fts3shared-1.6 { sqlite3_get_autocommit db2 } 0
+
+db close
+db2 close
+
+#-------------------------------------------------------------------------
+# The following tests - fts3shared-2.* - test that unless FTS is bypassed
+# and the underlying tables accessed directly, it is not possible for an
+# SQLITE_LOCKED error to be enountered when committing an FTS transaction.
+#
+# Any SQLITE_LOCKED error should be returned when the fts4 (or fts4aux)
+# table is first read/written within a transaction, not later on.
+#
+set LOCKED {1 {database table is locked}}
+forcedelete test.db
+sqlite3 dbR test.db
+sqlite3 dbW test.db
+do_test 2.1 {
+  execsql {
+    CREATE VIRTUAL TABLE t1 USING fts4;
+    CREATE TABLE t2ext(a, b);
+    CREATE VIRTUAL TABLE t2 USING fts4(content=t2ext);
+    CREATE VIRTUAL TABLE t1aux USING fts4aux(t1);
+    CREATE VIRTUAL TABLE t2aux USING fts4aux(t2);
+
+    INSERT INTO t1   VALUES('a b c');
+    INSERT INTO t2(rowid, a, b) VALUES(1, 'd e f', 'g h i');
+  } dbW
+} {}
+
+# Test that once [dbW] has written to the FTS table, no client may read
+# from the FTS or fts4aux table.
+do_test 2.2.1 {
+  execsql {
+    BEGIN;
+      INSERT INTO t1 VALUES('j k l');
+  } dbW
+  execsql BEGIN dbR
+} {}
+do_test 2.2.2 { catchsql "SELECT * FROM t1 WHERE rowid=1"          dbR } $LOCKED
+do_test 2.2.3 { catchsql "SELECT * FROM t1 WHERE t1 MATCH 'a'"     dbR } $LOCKED
+do_test 2.2.4 { catchsql "SELECT rowid FROM t1 WHERE t1 MATCH 'a'" dbR } $LOCKED
+do_test 2.2.5 { catchsql "SELECT * FROM t1"                        dbR } $LOCKED
+do_test 2.2.6 { catchsql "SELECT * FROM t1aux"                     dbR } $LOCKED
+do_test 2.2.7 { execsql COMMIT dbW } {}
+do_test 2.2.8 { execsql COMMIT dbR } {}
+
+# Same test as 2.2.*, except with a content= table.
+#
+do_test 2.3.1 {
+  execsql {
+    BEGIN;
+      INSERT INTO t2(rowid, a, b) VALUES(2, 'j k l', 'm n o');
+  } dbW
+  execsql BEGIN dbR
+} {}
+do_test 2.3.3 { catchsql "SELECT * FROM t2 WHERE t2 MATCH 'a'"     dbR } $LOCKED
+do_test 2.3.4 { catchsql "SELECT rowid FROM t2 WHERE t2 MATCH 'a'" dbR } $LOCKED
+do_test 2.3.6 { catchsql "SELECT * FROM t2aux"                     dbR } $LOCKED
+do_test 2.3.7 { execsql COMMIT dbW } {}
+do_test 2.3.8 { execsql COMMIT dbR } {}
+
+# Test that once a connection has read from the FTS or fts4aux table, 
+# another connection may not write to the FTS table.
+#
+foreach {tn sql} {
+  1 "SELECT * FROM t1 WHERE rowid=1"
+  2 "SELECT * FROM t1 WHERE t1 MATCH 'a'" 
+  3 "SELECT rowid FROM t1 WHERE t1 MATCH 'a'"
+  4 "SELECT * FROM t1"
+  5 "SELECT * FROM t1aux"
+} {
+
+  do_test 2.4.$tn {
+    execsql BEGIN dbR
+    execsql $::sql dbR
+    execsql BEGIN dbW
+    catchsql "INSERT INTO t1 VALUES('p q r')" dbW
+  } $LOCKED
+
+  execsql ROLLBACK dbR 
+  execsql ROLLBACK dbW 
+}
+
+# Same test as 2.4.*, except with a content= table.
+#
+foreach {tn sql} {
+  2 "SELECT * FROM t2 WHERE t2 MATCH 'a'" 
+  3 "SELECT rowid FROM t2 WHERE t2 MATCH 'a'"
+  5 "SELECT * FROM t2aux"
+} {
+
+  do_test 2.5.$tn {
+    execsql BEGIN dbR
+    execsql $::sql dbR
+    execsql BEGIN dbW
+    catchsql "INSERT INTO t2(rowid, a, b) VALUES(3, 's t u', 'v w x')" dbW
+  } $LOCKED
+
+  execsql ROLLBACK dbR 
+  execsql ROLLBACK dbW 
+}
+
+dbW close
+dbR close
+sqlite3_enable_shared_cache $::enable_shared_cache
+finish_test
diff --git a/test/fts3snippet.test b/test/fts3snippet.test
new file mode 100644
index 0000000000000000000000000000000000000000..ad1fbb3bef73f16a29347bd55f14145de125ccb6
--- /dev/null
+++ b/test/fts3snippet.test
@@ -0,0 +1,595 @@
+# 2010 January 07
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+# The tests in this file test the FTS3 auxillary functions offsets(), 
+# snippet() and matchinfo() work. At time of writing, running this file 
+# provides full coverage of fts3_snippet.c.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix fts3snippet
+
+# If SQLITE_ENABLE_FTS3 is not defined, omit this file.
+ifcapable !fts3 { finish_test ; return }
+source $testdir/fts3_common.tcl
+
+set sqlite_fts3_enable_parentheses 1
+set DO_MALLOC_TEST 0
+
+# Transform the list $L to its "normal" form. So that it can be compared to
+# another list with the same set of elements using [string compare].
+#
+proc normalize {L} {
+  set ret [list]
+  foreach l $L {lappend ret $l}
+  return $ret
+}
+
+proc do_offsets_test {name expr args} {
+  set result [list]
+  foreach a $args {
+    lappend result [normalize $a]
+  }
+  do_select_test $name {
+    SELECT offsets(ft) FROM ft WHERE ft MATCH $expr
+  } $result
+}
+  
+# Document text used by a few tests. Contains the English names of all
+# integers between 1 and 300.
+#
+set numbers [normalize {
+  one two three four five six seven eight nine ten eleven twelve thirteen
+  fourteen fifteen sixteen seventeen eighteen nineteen twenty twentyone
+  twentytwo twentythree twentyfour twentyfive twentysix twentyseven
+  twentyeight twentynine thirty thirtyone thirtytwo thirtythree thirtyfour
+  thirtyfive thirtysix thirtyseven thirtyeight thirtynine forty fortyone
+  fortytwo fortythree fortyfour fortyfive fortysix fortyseven fortyeight
+  fortynine fifty fiftyone fiftytwo fiftythree fiftyfour fiftyfive fiftysix
+  fiftyseven fiftyeight fiftynine sixty sixtyone sixtytwo sixtythree sixtyfour
+  sixtyfive sixtysix sixtyseven sixtyeight sixtynine seventy seventyone
+  seventytwo seventythree seventyfour seventyfive seventysix seventyseven
+  seventyeight seventynine eighty eightyone eightytwo eightythree eightyfour
+  eightyfive eightysix eightyseven eightyeight eightynine ninety ninetyone
+  ninetytwo ninetythree ninetyfour ninetyfive ninetysix ninetyseven
+  ninetyeight ninetynine onehundred onehundredone onehundredtwo
+  onehundredthree onehundredfour onehundredfive onehundredsix onehundredseven
+  onehundredeight onehundrednine onehundredten onehundredeleven
+  onehundredtwelve onehundredthirteen onehundredfourteen onehundredfifteen
+  onehundredsixteen onehundredseventeen onehundredeighteen onehundrednineteen
+  onehundredtwenty onehundredtwentyone onehundredtwentytwo
+  onehundredtwentythree onehundredtwentyfour onehundredtwentyfive
+  onehundredtwentysix onehundredtwentyseven onehundredtwentyeight
+  onehundredtwentynine onehundredthirty onehundredthirtyone
+  onehundredthirtytwo onehundredthirtythree onehundredthirtyfour
+  onehundredthirtyfive onehundredthirtysix onehundredthirtyseven
+  onehundredthirtyeight onehundredthirtynine onehundredforty
+  onehundredfortyone onehundredfortytwo onehundredfortythree
+  onehundredfortyfour onehundredfortyfive onehundredfortysix
+  onehundredfortyseven onehundredfortyeight onehundredfortynine
+  onehundredfifty onehundredfiftyone onehundredfiftytwo onehundredfiftythree
+  onehundredfiftyfour onehundredfiftyfive onehundredfiftysix
+  onehundredfiftyseven onehundredfiftyeight onehundredfiftynine
+  onehundredsixty onehundredsixtyone onehundredsixtytwo onehundredsixtythree
+  onehundredsixtyfour onehundredsixtyfive onehundredsixtysix
+  onehundredsixtyseven onehundredsixtyeight onehundredsixtynine
+  onehundredseventy onehundredseventyone onehundredseventytwo
+  onehundredseventythree onehundredseventyfour onehundredseventyfive
+  onehundredseventysix onehundredseventyseven onehundredseventyeight
+  onehundredseventynine onehundredeighty onehundredeightyone
+  onehundredeightytwo onehundredeightythree onehundredeightyfour
+  onehundredeightyfive onehundredeightysix onehundredeightyseven
+  onehundredeightyeight onehundredeightynine onehundredninety
+  onehundredninetyone onehundredninetytwo onehundredninetythree
+  onehundredninetyfour onehundredninetyfive onehundredninetysix
+  onehundredninetyseven onehundredninetyeight onehundredninetynine twohundred
+  twohundredone twohundredtwo twohundredthree twohundredfour twohundredfive
+  twohundredsix twohundredseven twohundredeight twohundrednine twohundredten
+  twohundredeleven twohundredtwelve twohundredthirteen twohundredfourteen
+  twohundredfifteen twohundredsixteen twohundredseventeen twohundredeighteen
+  twohundrednineteen twohundredtwenty twohundredtwentyone twohundredtwentytwo
+  twohundredtwentythree twohundredtwentyfour twohundredtwentyfive
+  twohundredtwentysix twohundredtwentyseven twohundredtwentyeight
+  twohundredtwentynine twohundredthirty twohundredthirtyone
+  twohundredthirtytwo twohundredthirtythree twohundredthirtyfour
+  twohundredthirtyfive twohundredthirtysix twohundredthirtyseven
+  twohundredthirtyeight twohundredthirtynine twohundredforty
+  twohundredfortyone twohundredfortytwo twohundredfortythree
+  twohundredfortyfour twohundredfortyfive twohundredfortysix
+  twohundredfortyseven twohundredfortyeight twohundredfortynine
+  twohundredfifty twohundredfiftyone twohundredfiftytwo twohundredfiftythree
+  twohundredfiftyfour twohundredfiftyfive twohundredfiftysix
+  twohundredfiftyseven twohundredfiftyeight twohundredfiftynine
+  twohundredsixty twohundredsixtyone twohundredsixtytwo twohundredsixtythree
+  twohundredsixtyfour twohundredsixtyfive twohundredsixtysix
+  twohundredsixtyseven twohundredsixtyeight twohundredsixtynine
+  twohundredseventy twohundredseventyone twohundredseventytwo
+  twohundredseventythree twohundredseventyfour twohundredseventyfive
+  twohundredseventysix twohundredseventyseven twohundredseventyeight
+  twohundredseventynine twohundredeighty twohundredeightyone
+  twohundredeightytwo twohundredeightythree twohundredeightyfour
+  twohundredeightyfive twohundredeightysix twohundredeightyseven
+  twohundredeightyeight twohundredeightynine twohundredninety
+  twohundredninetyone twohundredninetytwo twohundredninetythree
+  twohundredninetyfour twohundredninetyfive twohundredninetysix
+  twohundredninetyseven twohundredninetyeight twohundredninetynine
+  threehundred
+}]
+
+foreach {DO_MALLOC_TEST enc} {
+  0 utf8
+  1 utf8
+  1 utf16
+} {
+
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+  sqlite3_db_config_lookaside db 0 0 0
+  db eval "PRAGMA encoding = \"$enc\""
+
+  # Set variable $T to the test name prefix for this iteration of the loop.
+  #
+  set T "fts3snippet-1.$enc"
+
+  ##########################################################################
+  # Test the offset function.
+  #
+  do_test $T.1.1 {
+    execsql {
+      CREATE VIRTUAL TABLE ft USING fts3;
+      INSERT INTO ft VALUES('xxx xxx xxx xxx');
+    }
+  } {}
+  do_offsets_test $T.1.2 {xxx} {0 0 0 3 0 0 4 3 0 0 8 3 0 0 12 3}
+  do_offsets_test $T.1.3 {"xxx xxx"} {
+      0 0  0 3     0 0  4 3     0 1  4 3     0 0  8 3 
+      0 1  8 3     0 1 12 3
+  }
+  do_offsets_test $T.1.4 {"xxx xxx" xxx} {
+      0 0  0 3     0 2  0 3     0 0  4 3     0 1  4 3 
+      0 2  4 3     0 0  8 3     0 1  8 3     0 2  8 3 
+      0 1 12 3     0 2 12 3
+  }
+  do_offsets_test $T.1.5 {xxx "xxx xxx"} {
+      0 0  0 3     0 1  0 3     0 0  4 3     0 1  4 3 
+      0 2  4 3     0 0  8 3     0 1  8 3     0 2  8 3 
+      0 0 12 3     0 2 12 3
+  }
+
+  do_test $T.2.1 {
+    set v1 [lrange $numbers 0 99]
+    execsql {
+      DROP TABLE IF EXISTS ft;
+      CREATE VIRTUAL TABLE ft USING fts3(a, b);
+      INSERT INTO ft VALUES($v1, $numbers);
+      INSERT INTO ft VALUES($v1, NULL);
+    }
+  } {}
+
+  set off [string first "twohundred " $numbers]
+  do_offsets_test $T.2.1 {twohundred} [list 1 0 $off 10]
+
+  set off [string first "onehundred " $numbers]
+  do_offsets_test $T.2.2 {onehundred} \
+    [list 0 0 $off 10 1 0 $off 10] [list 0 0 $off 10]
+
+  # Test a corruption case:
+  sqlite3_db_config db DEFENSIVE 0
+  execsql { UPDATE ft_content SET c1b = 'hello world' WHERE c1b = $numbers }
+  do_error_test $T.2.3 {
+    SELECT offsets(ft) FROM ft WHERE ft MATCH 'onehundred'
+  } {database disk image is malformed}
+  
+  ##########################################################################
+  # Test the snippet function.
+  #
+  proc do_snippet_test {name expr iCol nTok args} {
+    set res [list]
+    foreach a $args { lappend res [string trim $a] }
+    do_select_test $name {
+      SELECT snippet(ft,'{','}','...',$iCol,$nTok) FROM ft WHERE ft MATCH $expr
+    } $res
+  }
+  do_test $T.3.1 {
+    execsql {
+      DROP TABLE IF EXISTS ft;
+      CREATE VIRTUAL TABLE ft USING fts3;
+      INSERT INTO ft VALUES('one two three four five six seven eight nine ten');
+    }
+  } {}
+  do_snippet_test $T.3.2  one    0 5 "{one} two three four five..."
+  do_snippet_test $T.3.3  two    0 5 "one {two} three four five..."
+  do_snippet_test $T.3.4  three  0 5 "one two {three} four five..."
+  do_snippet_test $T.3.5  four   0 5 "...two three {four} five six..."
+  do_snippet_test $T.3.6  five   0 5 "...three four {five} six seven..."
+  do_snippet_test $T.3.7  six    0 5 "...four five {six} seven eight..."
+  do_snippet_test $T.3.8  seven  0 5 "...five six {seven} eight nine..."
+  do_snippet_test $T.3.9  eight  0 5 "...six seven {eight} nine ten"
+  do_snippet_test $T.3.10 nine   0 5 "...six seven eight {nine} ten"
+  do_snippet_test $T.3.11 ten    0 5 "...six seven eight nine {ten}"
+  
+  do_test $T.4.1 {
+    execsql {
+      INSERT INTO ft VALUES(
+           'one two three four five '
+        || 'six seven eight nine ten '
+        || 'eleven twelve thirteen fourteen fifteen '
+        || 'sixteen seventeen eighteen nineteen twenty '
+        || 'one two three four five '
+        || 'six seven eight nine ten '
+        || 'eleven twelve thirteen fourteen fifteen '
+        || 'sixteen seventeen eighteen nineteen twenty'
+      );
+    }
+  } {}
+  
+  do_snippet_test $T.4.2 {one nine} 0 5 {
+     {one} two three...eight {nine} ten
+  } {
+     {one} two three...eight {nine} ten...
+  }
+  
+  do_snippet_test $T.4.3 {one nine} 0 -5 {
+     {one} two three four five...six seven eight {nine} ten
+  } {
+     {one} two three four five...seven eight {nine} ten eleven...
+  }
+  do_snippet_test $T.4.3 {one nineteen} 0 -5 {
+     ...eighteen {nineteen} twenty {one} two...
+  }
+  do_snippet_test $T.4.4 {two nineteen} 0 -5 {
+     ...eighteen {nineteen} twenty one {two}...
+  }
+  do_snippet_test $T.4.5 {three nineteen} 0 -5 {
+     ...{nineteen} twenty one two {three}...
+  }
+  
+  do_snippet_test $T.4.6 {four nineteen} 0 -5 {
+     ...two three {four} five six...seventeen eighteen {nineteen} twenty one...
+  }
+  do_snippet_test $T.4.7 {four NEAR nineteen} 0 -5 {
+     ...seventeen eighteen {nineteen} twenty one...two three {four} five six...
+  }
+  
+  do_snippet_test $T.4.8 {four nineteen} 0 5 {
+     ...three {four} five...eighteen {nineteen} twenty...
+  }
+  do_snippet_test $T.4.9 {four NEAR nineteen} 0 5 {
+     ...eighteen {nineteen} twenty...three {four} five...
+  }
+  do_snippet_test $T.4.10 {four NEAR nineteen} 0 -5 {
+     ...seventeen eighteen {nineteen} twenty one...two three {four} five six...
+  }
+  do_snippet_test $T.4.11 {four NOT (nineteen twentyone)} 0 5 {
+     ...two three {four} five six...
+  } {
+     ...two three {four} five six...
+  }
+  do_snippet_test $T.4.12 {four OR nineteen NEAR twentyone} 0 5 {
+     ...two three {four} five six...
+  } {
+     ...two three {four} five six...
+  }
+  
+  do_test $T.5.1 {
+    execsql {
+      DROP TABLE IF EXISTS ft;
+      CREATE VIRTUAL TABLE ft USING fts3(a, b, c);
+      INSERT INTO ft VALUES(
+        'one two three four five', 
+        'four five six seven eight', 
+        'seven eight nine ten eleven'
+      );
+    }
+  } {}
+  
+  do_snippet_test $T.5.2 {five} -1 3 {...three four {five}}
+  do_snippet_test $T.5.3 {five}  0 3 {...three four {five}}
+  do_snippet_test $T.5.4 {five}  1 3 {four {five} six...}
+  do_snippet_test $T.5.5 {five}  2 3 {seven eight nine...}
+  
+  do_test $T.5.6 {
+    execsql { UPDATE ft SET b = NULL }
+  } {}
+  
+  do_snippet_test $T.5.7  {five} -1 3 {...three four {five}}
+  do_snippet_test $T.5.8  {five}  0 3 {...three four {five}}
+  do_snippet_test $T.5.9  {five}  1 3 {}
+  do_snippet_test $T.5.10 {five}  2 3 {seven eight nine...}
+  
+  do_snippet_test $T.5.11 {one "seven eight nine"} -1 -3 {
+    {one} two three...{seven} {eight} {nine}...
+  }
+
+  do_test $T.6.1 {
+    execsql {
+      DROP TABLE IF EXISTS ft;
+      CREATE VIRTUAL TABLE ft USING fts3(x);
+      INSERT INTO ft VALUES($numbers);
+    }
+  } {}
+  do_snippet_test $T.6.2 {
+    one fifty onehundred onehundredfifty twohundredfifty threehundred
+  } -1 4 {
+    {one}...{fifty}...{onehundred}...{onehundredfifty}...
+  }
+  do_snippet_test $T.6.3 {
+    one fifty onehundred onehundredfifty twohundredfifty threehundred
+  } -1 -4 {
+    {one} two three four...fortyeight fortynine {fifty} fiftyone...ninetyeight ninetynine {onehundred} onehundredone...onehundredfortyeight onehundredfortynine {onehundredfifty} onehundredfiftyone...
+  }
+
+  do_test $T.7.1 {
+    execsql {
+      BEGIN;
+        DROP TABLE IF EXISTS ft;
+        CREATE VIRTUAL TABLE ft USING fts3(x);
+    }
+    set testresults [list]
+    for {set i 1} {$i < 150} {incr i} {
+      set commas [string repeat , $i]
+      execsql {INSERT INTO ft VALUES('one' || $commas || 'two')}
+      lappend testresults "{one}$commas{two}"
+    }
+    execsql COMMIT
+  } {}
+  eval [list do_snippet_test $T.7.2 {one two} -1 3] $testresults
+  
+  ##########################################################################
+  # Test the matchinfo function.
+  #
+  proc mit {blob} {
+    set scan(littleEndian) i*
+    set scan(bigEndian) I*
+    binary scan $blob $scan($::tcl_platform(byteOrder)) r
+    return $r
+  }
+  db func mit mit
+  proc do_matchinfo_test {name expr args} {
+    set res [list]
+    foreach a $args { lappend res [normalize $a] }
+    do_select_test $name {
+      SELECT mit(matchinfo(ft)) FROM ft WHERE ft MATCH $expr
+    } $res
+  }
+  do_test $T.8.1 {
+    set ten {one two three four five six seven eight nine ten}
+    execsql {
+      DROP TABLE IF EXISTS ft;
+      CREATE VIRTUAL TABLE ft USING fts3;
+      INSERT INTO ft VALUES($ten);
+      INSERT INTO ft VALUES($ten || ' ' || $ten);
+    }
+  } {}
+  
+  do_matchinfo_test $T.8.2 "one" {1 1  1 3 2} {1 1  2 3 2}
+  do_matchinfo_test $T.8.3 "one NEAR/3 ten" {2 1  1 1 1 1 1 1}
+  do_matchinfo_test $T.8.4 "five NEAR/4 ten" \
+    {2 1  1 3 2  1 3 2} {2 1  2 3 2  2 3 2}
+  do_matchinfo_test $T.8.5 "six NEAR/3 ten NEAR/3 two" \
+    {3 1  1 1 1  1 1 1  1 1 1}
+  do_matchinfo_test $T.8.6 "five NEAR/4 ten NEAR/3 two" \
+    {3 1  2 2 1  1 1 1  1 1 1}
+
+  do_test $T.9.1 {
+    execsql {
+      DROP TABLE IF EXISTS ft;
+      CREATE VIRTUAL TABLE ft USING fts3(x, y);
+    }
+    foreach n {1 2 3} {
+      set v1 [lrange $numbers 0 [expr $n*100]]
+      set v2 [string trim [string repeat "$numbers " $n]]
+      set docid [expr $n * 1000000]
+      execsql { INSERT INTO ft(docid, x, y) VALUES($docid, $v1, $v2) }
+    }
+  } {}
+  do_matchinfo_test $T.9.2 {two*}     \
+    { 1 2    1   105 3   101 606 3}   \
+    { 1 2    3   105 3   202 606 3}   \
+    { 1 2    101 105 3   303 606 3}
+
+  do_matchinfo_test $T.9.4 {"one* two*"}  \
+    { 1 2    1 5 3   2 12 3}              \
+    { 1 2    2 5 3   4 12 3}              \
+    { 1 2    2 5 3   6 12 3}
+
+  do_matchinfo_test $T.9.5 {twohundredfifty}  \
+    { 1 2    0 1 1   1 6 3}                   \
+    { 1 2    0 1 1   2 6 3}                   \
+    { 1 2    1 1 1   3 6 3}
+
+  do_matchinfo_test $T.9.6 {"threehundred one"} \
+    { 1 2    0 0 0   1 3 2}                     \
+    { 1 2    0 0 0   2 3 2}
+
+  do_matchinfo_test $T.9.7 {one OR fivehundred} \
+    { 2 2    1 3 3   1 6 3   0 0 0   0 0 0 }    \
+    { 2 2    1 3 3   2 6 3   0 0 0   0 0 0 }    \
+    { 2 2    1 3 3   3 6 3   0 0 0   0 0 0 }
+
+  do_matchinfo_test $T.9.8 {two OR "threehundred one"} \
+    { 2 2    1 3 3   1 6 3   0 0 0   0 3 2 }           \
+    { 2 2    1 3 3   2 6 3   0 0 0   1 3 2 }           \
+    { 2 2    1 3 3   3 6 3   0 0 0   2 3 2 }
+
+  do_select_test $T.9.9 {
+    SELECT mit(matchinfo(ft)), mit(matchinfo(ft))
+    FROM ft WHERE ft MATCH 'two OR "threehundred one"' 
+  } [normalize {
+    {2 2 1 3 3 1 6 3 0 0 0 0 3 2}
+    {2 2 1 3 3 1 6 3 0 0 0 0 3 2}
+    {2 2 1 3 3 2 6 3 0 0 0 1 3 2}
+    {2 2 1 3 3 2 6 3 0 0 0 1 3 2}
+    {2 2 1 3 3 3 6 3 0 0 0 2 3 2}          
+    {2 2 1 3 3 3 6 3 0 0 0 2 3 2}
+  }]
+
+  # EVIDENCE-OF: R-40630-02268 If used within a SELECT that uses the
+  # "query by rowid" or "linear scan" strategies, then the snippet and
+  # offsets both return an empty string, and the matchinfo function
+  # returns a blob value zero bytes in size.
+  #
+  set r 1000000                   ;# A rowid that exists in table ft
+  do_select_test $T.10.0 { SELECT rowid FROM ft WHERE rowid = $r } $r
+  do_select_test $T.10.1 {
+    SELECT length(offsets(ft)), typeof(offsets(ft)) FROM ft;
+  } {0 text 0 text 0 text}
+  do_select_test $T.10.2 {
+    SELECT length(offsets(ft)), typeof(offsets(ft)) FROM ft WHERE rowid = $r
+  } {0 text}
+  do_select_test $T.10.3 {
+    SELECT length(snippet(ft)), typeof(snippet(ft)) FROM ft;
+  } {0 text 0 text 0 text}
+  do_select_test $T.10.4 {
+    SELECT length(snippet(ft)), typeof(snippet(ft)) FROM ft WHERE rowid = $r;
+  } {0 text}
+  do_select_test $T.10.5 {
+    SELECT length(matchinfo(ft)), typeof(matchinfo(ft)) FROM ft;
+  } {0 blob 0 blob 0 blob}
+  do_select_test $T.10.6 {
+    SELECT length(matchinfo(ft)), typeof(matchinfo(ft)) FROM ft WHERE rowid = $r
+  } {0 blob}
+}
+
+#-------------------------------------------------------------------------
+# Test an interaction between the snippet() function and OR clauses.
+#
+do_execsql_test 2.1 {
+  CREATE VIRTUAL TABLE t2 USING fts4;
+  INSERT INTO t2 VALUES('one two three four five');
+  INSERT INTO t2 VALUES('two three four five one');
+  INSERT INTO t2 VALUES('three four five one two');
+  INSERT INTO t2 VALUES('four five one two three');
+  INSERT INTO t2 VALUES('five one two three four');
+}
+
+do_execsql_test 2.2 {
+  SELECT snippet(t2, '[', ']') FROM t2 WHERE t2 MATCH 'one OR (four AND six)'
+} {
+  {[one] two three [four] five}
+  {two three [four] five [one]}
+  {three [four] five [one] two}
+  {[four] five [one] two three}
+  {five [one] two three [four]}
+}
+
+do_execsql_test 2.3 {
+  SELECT snippet(t2, '[', ']') FROM t2 
+  WHERE t2 MATCH 'one OR (four AND six)' 
+  ORDER BY docid DESC
+} {
+  {five [one] two three [four]}
+  {[four] five [one] two three}
+  {three [four] five [one] two}
+  {two three [four] five [one]}
+  {[one] two three [four] five}
+}
+
+do_execsql_test 2.4 {
+  INSERT INTO t2 VALUES('six');
+}
+
+do_execsql_test 2.5 {
+  SELECT snippet(t2, '[', ']') FROM t2 WHERE t2 MATCH 'one OR (four AND six)'
+} {
+  {[one] two three [four] five}
+  {two three [four] five [one]}
+  {three [four] five [one] two}
+  {[four] five [one] two three}
+  {five [one] two three [four]}
+}
+
+do_execsql_test 2.6 {
+  SELECT snippet(t2, '[', ']') FROM t2 
+  WHERE t2 MATCH 'one OR (four AND six)' 
+  ORDER BY docid DESC
+} {
+  {five [one] two three [four]}
+  {[four] five [one] two three}
+  {three [four] five [one] two}
+  {two three [four] five [one]}
+  {[one] two three [four] five}
+}
+
+#-------------------------------------------------------------------------
+do_execsql_test 3 {
+  CREATE VIRTUAL TABLE t3 USING fts4;
+  INSERT INTO t3 VALUES('[one two three]');
+}
+do_execsql_test 3.1 {
+  SELECT snippet(t3) FROM t3 WHERE t3 MATCH 'one';
+} {{[<b>one</b> two three]}}
+do_execsql_test 3.2 {
+  SELECT snippet(t3) FROM t3 WHERE t3 MATCH 'two';
+} {{[one <b>two</b> three]}}
+do_execsql_test 3.3 {
+  SELECT snippet(t3) FROM t3 WHERE t3 MATCH 'three';
+} {{[one two <b>three</b>]}}
+do_execsql_test 3.4 {
+  SELECT snippet(t3) FROM t3 WHERE t3 MATCH 'one OR two OR three';
+} {{[<b>one</b> <b>two</b> <b>three</b>]}}
+
+#-------------------------------------------------------------------------
+# Request a snippet 0 tokens in size. This is always an empty string.
+do_execsql_test 4.1 {
+  CREATE VIRTUAL TABLE t4 USING fts4;
+  INSERT INTO t4 VALUES('a b c d');
+  SELECT snippet(t4, '[', ']', '...', 0, 0) FROM t4 WHERE t4 MATCH 'b';
+} {{}}
+
+do_test 4.2 {
+  set x35 [string trim [string repeat "x " 35]]
+  execsql "INSERT INTO t4 VALUES('$x35 E $x35 F $x35 G $x35');"
+  llength [db one {
+    SELECT snippet(t4, '', '', '', 0, 64) FROM t4 WHERE t4 MATCH 'E'
+  }]
+} {64}
+
+do_test 4.3 {
+  llength [db one {
+    SELECT snippet(t4, '', '', '', 0, 150) FROM t4 WHERE t4 MATCH 'E'
+  }]
+} {64}
+
+#-------------------------------------------------------------------------
+# Request a snippet from a query with more than 64 phrases.
+#
+do_execsql_test 5.0 {
+  CREATE VIRTUAL TABLE t5 USING fts3(x);
+  INSERT INTO t5 VALUES('a1 a2 a3');
+  INSERT INTO t5 VALUES('a4 a5 a6');
+  INSERT INTO t5 VALUES('a70 a71 a72');
+}
+
+do_execsql_test 5.1 {
+  SELECT snippet(t5, '[', ']') FROM t5 WHERE t5 MATCH 
+  'a1 OR a2 OR a3 OR a4 OR a5 OR a6 OR a7 OR a8 OR a9 OR a10 OR ' ||
+  'a11 OR a12 OR a13 OR a14 OR a15 OR a16 OR a17 OR a18 OR a19 OR a10 OR ' ||
+  'a21 OR a22 OR a23 OR a24 OR a25 OR a26 OR a27 OR a28 OR a29 OR a20 OR ' ||
+  'a31 OR a32 OR a33 OR a34 OR a35 OR a36 OR a37 OR a38 OR a39 OR a30 OR ' ||
+  'a41 OR a42 OR a43 OR a44 OR a45 OR a46 OR a47 OR a48 OR a49 OR a40 OR ' ||
+  'a51 OR a52 OR a53 OR a54 OR a55 OR a56 OR a57 OR a58 OR a59 OR a50 OR ' ||
+  'a61 OR a62 OR a63 OR a64 OR a65 OR a66 OR a67 OR a68 OR a69 OR a60 OR ' ||
+  'a71 OR a72 OR a73 OR a74 OR a75 OR a76 OR a77 OR a78 OR a79 OR a70'
+} {
+  {[a1] [a2] [a3]}
+  {[a4] [a5] [a6]}
+  {[a70] [a71] [a72]}
+}
+
+do_execsql_test 5.2 {
+  SELECT snippet(t5, '[', ']', -1, 0) FROM t5 WHERE t5 MATCH 'a5'
+} {{a4 [a5] a6}}
+
+set sqlite_fts3_enable_parentheses 0
+finish_test
diff --git a/test/fts3snippet2.test b/test/fts3snippet2.test
new file mode 100644
index 0000000000000000000000000000000000000000..f55a5f203ad7d08628761d10845071771eee87bf
--- /dev/null
+++ b/test/fts3snippet2.test
@@ -0,0 +1,70 @@
+# 2020-05-14
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+# The tests in this file test the FTS3 auxillary functions offsets(), 
+# snippet() and matchinfo() work. At time of writing, running this file 
+# provides full coverage of fts3_snippet.c.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix fts3snippet
+
+# If SQLITE_ENABLE_FTS3 is not defined, omit this file.
+ifcapable !fts3 { finish_test ; return }
+source $testdir/fts3_common.tcl
+
+set sqlite_fts3_enable_parentheses 1
+#-------------------------------------------------------------------------
+# Request a snippet from a query with more than 64 phrases.
+#
+reset_db
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE f USING fts3(b);
+  INSERT INTO f VALUES ( x'746e6e6d64612e082a011065616e656d655a616c702a2f65732e0f42014001380230018218');
+}
+
+do_execsql_test 1.1 {
+  SELECT  length(snippet(f))>0  FROM f WHERE b MATCH x'1065616e656d655a616c702a2f65732e0f42014001380230018218021001081e0a3d746e6e6d64612e082a010f42014001380230018218021001081e0a3d746e6e6d64612e082a011065616e656d655a616c702a2f65732e0f42014001380230018218021001081e0a3d746e6e6d64612e082a011065616e656d655a616c702a2f65732e0f42014001380230018218021001081e0a3d746e6e6d64612e082a011065616e656d655a616c702a2f0a3d746e6e6d64612e082a011065616e656d655a616c702a2f65732e0f42014001018218021001081e0a3d746e6e6d64612e082a011065616e656d655a616c702a018218021001081e0a3d746e6e6d64612e082a011065616e656d655a616c2a2f65732e0f42014001380230018218021001081e0a3d746e6e6d64612e082a011065616e656d655a616c702a2f65732e0f42014001380230018218021001081e0a3d746e6e6d64612e082a011065616e656d655a616c702a2f65732e0f42014001380230018218021001081e0a3d746e6e6d64612e082a011065616e656d655a616c702a2f65732e0f42014001380230018218021001081e0a3d746e6e6d64612e0f42';
+} {1}
+
+reset_db
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE t0 USING fts3(col0 INTEGER PRIMARY KEY,col1 VARCHAR(8),col2 BINARY,col3 BINARY);
+  INSERT INTO t0 VALUES (1, '1234','aaaa','bbbb');
+  SELECT snippet(t0)  FROM t0 WHERE t0 MATCH x'0a4d4d4d4d320a4f52d70a310a310a4e4541520a0a31f6ce0a4f520a0a310a310a310a4f520a75fc2a242424' ;
+} {<b>1</b>}
+
+reset_db
+do_execsql_test 2.1 {
+  CREATE VIRTUAL TABLE t0 USING fts3(
+      col0 INTEGER PRIMARY KEY,col1 VARCHAR(8),col2 BINARY,col3 BINARY
+  );
+  INSERT INTO t0 VALUES ('one', '1234','aaaa','bbbb');
+}
+do_execsql_test 2.2 {
+  SELECT snippet(t0)  FROM t0 WHERE t0 MATCH 
+  '(def AND (one NEAR abc)) OR one'
+} {<b>one</b>}
+
+#-------------------------------------------------------------------------
+
+do_execsql_test 3.0 {
+CREATE VIRTUAL TABLE f USING fts3(a,b);
+INSERT INTO f VALUES (101,x'056522650565056505650d051e056505650565286505650565056505056505650565056505650565056505650565056505650565056505656505650565056505650d05650505656505650565ef65056505844c746e65650565056505650565056505650565056505650565058405800565056505650565056505651e650565056505650565056505650d056505056565056505650565056505840580056505650565056f05650565056505650565056505650565050565056505640565056505650565056505651e05650565056505650565056505650505656565056505650565056505651e0565056505650565056505650565052265056505650569056505650565056505650565056505650565056505650500406505650565056505650565056505000101e5c501014b010101c501c5c501010101f5010201010101014101017373737373737373737373737373737373737373737373737373737330737373737373737373737373737365056505650d051e05650565056528056505650d05650505656505650565650565056505650565056505e505650565056505656505650565056505650d05650505656505650565ef65056505844c746e65650565056505650565056505650565056505650565058405800565056505650565056505651e650565056505650565056505650d056505056565056505650565056505840580056505650565286505c705650565050565059494949494949494949494949494949494949494949494949494949494949494949494650565056505650565056505650565056505650565056505656505650565056505650d05650505656505650565ef650565058405056505650565056505650565056505650565056505650565058405800565056505650565056505651e650565056505650565056505650d056505056565056505650565056505840580056505650565056505650565056505650505650565056505650565056505650565056500000000000000000000000000000000000000000000000000000000000000000565056505656505650565056505650d056500000000000000000000000000000000000000000000000000000000000000000100000000000000ed0000000000ffffffffffffffffffffff0007ffffff0001c5c50001c5c50001c5c50001c5c50001c5c50001c5c50001e5c50001c5c50001c5c50001c5c50001c5c50001c5c5000100000014720000000000000016dac5c50001c5c50001c5c50001c5c50001c5c50001c5c50d0505656505650565ef650565058405056505650565056505650565056505650565056505650565058405800465056505650565056505651e650565056505650565056505650d05650505656505650565050565650584058005650565056505650565056505650565056522650565056505650d051e056505650561286505c70565056505056505650565056505650565056505650565056505650565056505656505650565056505650d05650505656505650565ef650565058405056505650565056505650565056505650565056505650565058405800565056505650565056505651e650565056505650565056505650d056505056565056505650565056505840580056505650565056505650565056505650565226505737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373733a73737373737373737373737373737373737373737373737373737373737373737373737373737373737c7373737365056505650d051e05650565056528650565056505650505650565056505650565056505650565056505e505650565056505656505650565056505650d05650505656505650565ef65056505');
+}
+
+do_execsql_test 3.1 {
+  SELECT  length(snippet(f))  FROM f WHERE b MATCH x'0565056505650565056505650565056505650565058405800565056505650565056505651e650565056505650565056505650d056505056565056505650565056505840580056505650565056505650565056505650565056505650565050565056505640565056505650565056505651e05650565056522650565056505650d051e056505650565286505650565056505056505650565056505650565056505650565056505650565056505656505650565056505650d05650505656505650565ef65056505844c746e65650565056505650565056505650565056505650565058405800565056505650565056505651e650565056505650565056505650d056505056565056505650565056505840580056505650565056f05650565056505650565056505650565050565056505640565056505650565056505651e05650565056505650565056505650505656565056505650565056505651e0565056505650565056505650565052265056505650569056505650565056505650565056505650565056505650500406505650565056505650565056505000101e5c501014b010101c501c5c501010101f50102010101010141010141010001017bf15905000000000017';
+} {192}
+
+set sqlite_fts3_enable_parentheses 0
+finish_test
diff --git a/test/fts3sort.test b/test/fts3sort.test
new file mode 100644
index 0000000000000000000000000000000000000000..218bf3e827c91ed7c341cae2303136895d9f7d70
--- /dev/null
+++ b/test/fts3sort.test
@@ -0,0 +1,184 @@
+# 2011 May 04
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS3 module.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+
+proc build_database {nRow param} {
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+
+  set vocab [list    aa ab ac   ba bb bc    ca cb cc   da]
+  expr srand(0)
+
+  execsql "CREATE VIRTUAL TABLE t1 USING fts4($param)"
+  for {set i 0} {$i < $nRow} {incr i} {
+    set v [expr int(rand()*1000000)]
+    set doc [list]
+    for {set div 1} {$div < 1000000} {set div [expr $div*10]} {
+      lappend doc [lindex $vocab [expr ($v/$div) % 10]]
+    }
+    execsql { INSERT INTO t1 VALUES($doc) }
+  }
+}
+
+set testprefix fts3sort
+
+unset -nocomplain CONTROL
+foreach {t param} {
+  1     ""
+  2     "order=asc"
+  3     "order=desc"
+} {
+
+  set testprefix fts3sort-1.$t
+
+  set nRow 1000
+  do_test 1.0 {
+    build_database $nRow $param
+    execsql { SELECT count(*) FROM t1 }
+  } $nRow
+  
+  foreach {tn query} {
+  1   "SELECT docid, * FROM t1"
+  2   "SELECT docid, * FROM t1 WHERE t1 MATCH 'aa'"
+  3   "SELECT docid, * FROM t1 WHERE t1 MATCH 'a*'"
+  4   "SELECT docid, quote(matchinfo(t1)) FROM t1 WHERE t1 MATCH 'a*'"
+  5   "SELECT docid, quote(matchinfo(t1,'pcnxals')) FROM t1 WHERE t1 MATCH 'b*'"
+  6   "SELECT docid, * FROM t1 WHERE t1 MATCH 'a* b* c*'"
+  7   "SELECT docid, * FROM t1 WHERE t1 MATCH 'aa OR da'"
+  8   "SELECT docid, * FROM t1 WHERE t1 MATCH 'nosuchtoken'"
+  9   "SELECT docid, snippet(t1) FROM t1 WHERE t1 MATCH 'aa OR da'"
+  10  "SELECT docid, snippet(t1) FROM t1 WHERE t1 MATCH 'aa OR nosuchtoken'"
+  11  "SELECT docid, snippet(t1) FROM t1 WHERE t1 MATCH 'aa NEAR bb'"
+  12  "SELECT docid, snippet(t1) FROM t1 WHERE t1 MATCH '\"aa bb\"'"
+  13  "SELECT docid, content FROM t1 WHERE t1 MATCH 'aa NEAR/2 bb NEAR/3 cc'"
+  14  "SELECT docid, content FROM t1 WHERE t1 MATCH '\"aa bb cc\"'"
+  } {
+  
+    unset -nocomplain A B C D
+    set A_list [list]
+    set B_list [list]
+    set C_list [list]
+    set D_list [list]
+  
+    unset -nocomplain X
+    db eval "$query ORDER BY rowid ASC"  X  { 
+      set A($X(docid)) [array get X] 
+      lappend A_list $X(docid)
+    }
+    unset -nocomplain X
+    db eval "$query ORDER BY rowid DESC" X  { 
+      set B($X(docid)) [array get X] 
+      lappend B_list $X(docid)
+    }
+    unset -nocomplain X
+    db eval "$query ORDER BY docid ASC"  X  { 
+      set C($X(docid)) [array get X] 
+      lappend C_list $X(docid)
+    }
+    unset -nocomplain X
+    db eval "$query ORDER BY docid DESC" X  { 
+      set D($X(docid)) [array get X] 
+      lappend D_list $X(docid)
+    }
+  
+    do_test $tn.1 { set A_list } [lsort -integer -increasing $A_list]
+    do_test $tn.2 { set B_list } [lsort -integer -decreasing $B_list]
+    do_test $tn.3 { set C_list } [lsort -integer -increasing $C_list]
+    do_test $tn.4 { set D_list } [lsort -integer -decreasing $D_list]
+  
+    unset -nocomplain DATA
+    unset -nocomplain X
+    db eval "$query" X  { 
+      set DATA($X(docid)) [array get X] 
+    }
+  
+    do_test $tn.5 { lsort [array get A] } [lsort [array get DATA]]
+    do_test $tn.6 { lsort [array get B] } [lsort [array get DATA]]
+    do_test $tn.7 { lsort [array get C] } [lsort [array get DATA]]
+    do_test $tn.8 { lsort [array get D] } [lsort [array get DATA]]
+
+    if {[info exists CONTROL($tn)]} {
+      do_test $tn.9 { set CONTROL($tn) } [lsort [array get DATA]]
+    } else {
+      set CONTROL($tn) [lsort [array get DATA]]
+    }
+  }
+}
+unset -nocomplain CONTROL
+
+set testprefix fts3sort
+
+#-------------------------------------------------------------------------
+# Tests for parsing the "order=asc" and "order=desc" directives.
+#
+foreach {tn param res} {
+  1 "order=asc"             {0 {}}
+  2 "order=desc"            {0 {}}
+  3 "order=dec"             {1 {unrecognized order: dec}}
+  4 "order=xxx, order=asc"  {1 {unrecognized order: xxx}}
+  5 "order=desc, order=asc" {0 {}}
+  6 "order=xxxx, order=asc" {1 {unrecognized order: xxxx}}
+  7 "order=desk"            {1 {unrecognized order: desk}}
+} {
+  execsql { DROP TABLE IF EXISTS t1 }
+  do_catchsql_test 2.1.$tn "
+    CREATE VIRTUAL TABLE t1 USING fts4(a, b, $param)
+  " $res
+}
+
+do_execsql_test 2.2 {
+  BEGIN;
+    CREATE VIRTUAL TABLE t2 USING fts4(order=desc);
+    INSERT INTO t2 VALUES('aa bb');
+    INSERT INTO t2 VALUES('bb cc');
+    INSERT INTO t2 VALUES('cc aa');
+    SELECT docid FROM t2 WHERE t2 MATCH 'aa';
+  END;
+} {3 1}
+do_execsql_test 2.3 {
+  SELECT docid FROM t2 WHERE t2 MATCH 'aa';
+} {3 1}
+do_execsql_test 2.4 {
+  SELECT docid FROM t2 WHERE t2 MATCH 'aa' ORDER BY content;
+} {1 3}
+
+#-------------------------------------------------------------------------
+# Test that ticket [56be976859] has been fixed.
+#
+do_execsql_test 3.1 {
+  CREATE VIRTUAL TABLE t3 USING fts4(x, order=DESC);
+  INSERT INTO t3(docid, x) VALUES(113382409004785664, 'aa');
+  INSERT INTO t3(docid, x) VALUES(1, 'ab');
+  SELECT rowid FROM t3 WHERE x MATCH 'a*' ORDER BY docid DESC;
+} {113382409004785664 1}
+do_execsql_test 3.2 {
+  CREATE VIRTUAL TABLE t4 USING fts4(x);
+  INSERT INTO t4(docid, x) VALUES(-113382409004785664, 'aa');
+  INSERT INTO t4(docid, x) VALUES(1, 'ab');
+  SELECT rowid FROM t4 WHERE x MATCH 'a*';
+} {-113382409004785664 1}
+
+
+
+finish_test
diff --git a/test/fts3tok1.test b/test/fts3tok1.test
new file mode 100644
index 0000000000000000000000000000000000000000..139fae89d905acd20a9a5660d6aa6d31c57a89ad
--- /dev/null
+++ b/test/fts3tok1.test
@@ -0,0 +1,124 @@
+# 2013 April 22
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the "fts3tokenize" virtual table
+# that is part of the FTS3 module.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable !fts3 { finish_test ; return }
+set ::testprefix fts3tok1
+
+#-------------------------------------------------------------------------
+# Simple test cases. Using the default (simple) tokenizer.
+#
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts3tokenize(simple);
+  CREATE VIRTUAL TABLE t2 USING fts3tokenize();
+  CREATE VIRTUAL TABLE t3 USING fts3tokenize(simple, '', 'xyz ');
+}
+
+foreach {tn tbl} {1 t1 2 t2 3 t3} {
+  do_execsql_test 1.$tn.1 "SELECT * FROM $tbl WHERE input = 'one two three'" {
+    {one two three} one   0  3 0 
+    {one two three} two   4  7 1 
+    {one two three} three 8 13 2
+  }
+
+  do_execsql_test 1.$tn.2 "
+    SELECT token FROM $tbl WHERE input = 'OnE tWo tHrEe'
+  " {
+    one two three
+  }
+}
+
+do_execsql_test 1.4 {
+  SELECT token FROM t3 WHERE input = '1x2x3x'
+} {1 2 3}
+
+do_execsql_test 1.5 {
+  SELECT token FROM t1 WHERE input = '1x2x3x'
+} {1x2x3x}
+
+do_execsql_test 1.6 {
+  SELECT token FROM t3 WHERE input = '1''2x3x'
+} {1'2 3}
+
+do_execsql_test 1.7 {
+  SELECT token FROM t3 WHERE input = ''
+} {}
+
+do_execsql_test 1.8 {
+  SELECT token FROM t3 WHERE input = NULL
+} {}
+
+do_execsql_test 1.9 {
+  SELECT * FROM t3 WHERE input = 123
+} {123 123 0 3 0}
+
+do_execsql_test 1.10 {
+  SELECT * FROM t1 WHERE input = 'a b c' AND token = 'b';
+} {
+  {a b c} b 2 3 1
+}
+
+do_execsql_test 1.11 {
+  SELECT * FROM t1 WHERE token = 'b' AND input = 'a b c';
+} {
+  {a b c} b 2 3 1
+}
+
+do_execsql_test 1.12 {
+  SELECT * FROM t1 WHERE input < 'b' AND input = 'a b c';
+} {
+  {a b c} a 0 1 0 
+  {a b c} b 2 3 1 
+  {a b c} c 4 5 2
+}
+
+do_execsql_test 1.13.1 {
+  CREATE TABLE c1(x);
+  INSERT INTO c1(x) VALUES('a b c');
+  INSERT INTO c1(x) VALUES('d e f');
+}
+do_execsql_test 1.13.2 {
+  SELECT * FROM c1, t1 WHERE input = x AND c1.rowid=t1.rowid;
+} {
+  {a b c} {a b c} a 0 1 0 
+  {d e f} {d e f} e 2 3 1 
+}
+
+
+#-------------------------------------------------------------------------
+# Error cases.
+#
+do_catchsql_test 2.0 {
+  CREATE VIRTUAL TABLE tX USING fts3tokenize(nosuchtokenizer);
+} {1 {unknown tokenizer: nosuchtokenizer}}
+
+do_catchsql_test 2.1 {
+  CREATE VIRTUAL TABLE t4 USING fts3tokenize;
+  SELECT * FROM t4;
+} {1 {SQL logic error}}
+
+do_catchsql_test 2.2 {
+  CREATE VIRTUAL TABLE t USING fts4(tokenize=simple""); 
+} {0 {}}
+
+ifcapable fts3_unicode {
+  do_catchsql_test 2.3 {
+    CREATE VIRTUAL TABLE u USING fts4(tokenize=unicode61""); 
+  } {1 {unknown tokenizer}}
+}
+
+
+finish_test
diff --git a/test/fts3tok_err.test b/test/fts3tok_err.test
new file mode 100644
index 0000000000000000000000000000000000000000..df0d4beebd266c7adec3398c6e2c38592107c1ed
--- /dev/null
+++ b/test/fts3tok_err.test
@@ -0,0 +1,47 @@
+# 2013 April 22
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the "fts3tokenize" virtual table
+# that is part of the FTS3 module.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+ifcapable !fts3 { finish_test ; return }
+set ::testprefix fts3tok_err
+
+
+faultsim_save_and_close
+do_faultsim_test fts3tok_err-1 -faults oom* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { CREATE VIRTUAL TABLE t1 USING fts3tokenize("simple"); }
+} -test {
+  faultsim_test_result {0 {}} 
+}
+
+do_test fts3tok_err-2.prep {
+  faultsim_delete_and_reopen 
+  execsql { CREATE VIRTUAL TABLE t1 USING fts3tokenize("simple"); }
+  faultsim_save_and_close
+} {}
+
+do_faultsim_test fts3tok_err-2 -faults oom* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { SELECT token FROM t1 WHERE input = 'A galaxy far, far away' } 
+} -test {
+  faultsim_test_result {0 {a galaxy far far away}} 
+}
+
+
+finish_test
diff --git a/test/fts3varint.test b/test/fts3varint.test
new file mode 100644
index 0000000000000000000000000000000000000000..9f797ed954ad6acb7c4948b58d03b15856803d34
--- /dev/null
+++ b/test/fts3varint.test
@@ -0,0 +1,121 @@
+# 2007 November 23
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file runs all tests.
+#
+# $Id: fts3.test,v 1.2 2008/07/23 18:17:32 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix fts3varint
+
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+proc test_list {list} {
+  foreach n $list { fts3_test_varint $n }
+}
+
+proc do_fts3_varint_test {tn list} {
+  uplevel [list do_test $tn [list test_list $list] {}]
+}
+
+do_fts3_varint_test 1.0 {
+  1 10 100 1000 10000 100000 1000000 
+  10000000 100000000 1000000000 10000000000
+  100000000000 1000000000000 10000000000000
+}
+
+do_fts3_varint_test 1.1 {
+  -1 -10 -100 -1000 -10000 -100000 -1000000 
+  -10000000 -100000000 -1000000000 -10000000000
+  -100000000000 -1000000000000 -10000000000000
+}
+
+do_fts3_varint_test 2.0 { 0 1 2 }
+do_fts3_varint_test 2.1 { 1 2 3 }
+do_fts3_varint_test 2.2 { 3 4 5 }
+do_fts3_varint_test 2.3 { 7 8 9 }
+do_fts3_varint_test 2.4 { 15 16 17 }
+do_fts3_varint_test 2.5 { 31 32 33 }
+do_fts3_varint_test 2.6 { 63 64 65 }
+do_fts3_varint_test 2.7 { 127 128 129 }
+do_fts3_varint_test 2.8 { 255 256 257 }
+do_fts3_varint_test 2.9 { 511 512 513 }
+do_fts3_varint_test 2.10 { 1023 1024 1025 }
+do_fts3_varint_test 2.11 { 2047 2048 2049 }
+do_fts3_varint_test 2.12 { 4095 4096 4097 }
+do_fts3_varint_test 2.13 { 8191 8192 8193 }
+do_fts3_varint_test 2.14 { 16383 16384 16385 }
+do_fts3_varint_test 2.15 { 32767 32768 32769 }
+do_fts3_varint_test 2.16 { 65535 65536 65537 }
+do_fts3_varint_test 2.17 { 131071 131072 131073 }
+do_fts3_varint_test 2.18 { 262143 262144 262145 }
+do_fts3_varint_test 2.19 { 524287 524288 524289 }
+do_fts3_varint_test 2.20 { 1048575 1048576 1048577 }
+do_fts3_varint_test 2.21 { 2097151 2097152 2097153 }
+do_fts3_varint_test 2.22 { 4194303 4194304 4194305 }
+do_fts3_varint_test 2.23 { 8388607 8388608 8388609 }
+do_fts3_varint_test 2.24 { 16777215 16777216 16777217 }
+do_fts3_varint_test 2.25 { 33554431 33554432 33554433 }
+do_fts3_varint_test 2.26 { 67108863 67108864 67108865 }
+do_fts3_varint_test 2.27 { 134217727 134217728 134217729 }
+do_fts3_varint_test 2.28 { 268435455 268435456 268435457 }
+do_fts3_varint_test 2.29 { 536870911 536870912 536870913 }
+do_fts3_varint_test 2.30 { 1073741823 1073741824 1073741825 }
+do_fts3_varint_test 2.31 { 2147483647 2147483648 2147483649 }
+do_fts3_varint_test 2.32 { 4294967295 4294967296 4294967297 }
+do_fts3_varint_test 2.33 { 8589934591 8589934592 8589934593 }
+do_fts3_varint_test 2.34 { 17179869183 17179869184 17179869185 }
+do_fts3_varint_test 2.35 { 34359738367 34359738368 34359738369 }
+do_fts3_varint_test 2.36 { 68719476735 68719476736 68719476737 }
+do_fts3_varint_test 2.37 { 137438953471 137438953472 137438953473 }
+do_fts3_varint_test 2.38 { 274877906943 274877906944 274877906945 }
+do_fts3_varint_test 2.39 { 549755813887 549755813888 549755813889 }
+do_fts3_varint_test 2.40 { 1099511627775 1099511627776 1099511627777 }
+do_fts3_varint_test 2.41 { 2199023255551 2199023255552 2199023255553 }
+do_fts3_varint_test 2.42 { 4398046511103 4398046511104 4398046511105 }
+do_fts3_varint_test 2.43 { 8796093022207 8796093022208 8796093022209 }
+do_fts3_varint_test 2.44 { 17592186044415 17592186044416 17592186044417 }
+do_fts3_varint_test 2.45 { 35184372088831 35184372088832 35184372088833 }
+do_fts3_varint_test 2.46 { 70368744177663 70368744177664 70368744177665 }
+do_fts3_varint_test 2.47 { 140737488355327 140737488355328 140737488355329 }
+do_fts3_varint_test 2.48 { 281474976710655 281474976710656 281474976710657 }
+do_fts3_varint_test 2.49 { 562949953421311 562949953421312 562949953421313 }
+do_fts3_varint_test 2.50 { 1125899906842623 1125899906842624 1125899906842625 }
+do_fts3_varint_test 2.51 { 2251799813685247 2251799813685248 2251799813685249 }
+do_fts3_varint_test 2.52 { 4503599627370495 4503599627370496 4503599627370497 }
+do_fts3_varint_test 2.53 { 9007199254740991 9007199254740992 9007199254740993 }
+do_fts3_varint_test 2.54 { 
+    18014398509481983 18014398509481984 18014398509481985 }
+do_fts3_varint_test 2.55 { 
+    36028797018963967 36028797018963968 36028797018963969 }
+do_fts3_varint_test 2.56 { 
+    72057594037927935 72057594037927936 72057594037927937 }
+do_fts3_varint_test 2.57 { 
+    144115188075855871 144115188075855872 144115188075855873 }
+do_fts3_varint_test 2.58 { 
+    288230376151711743 288230376151711744 288230376151711745 }
+do_fts3_varint_test 2.59 { 
+    576460752303423487 576460752303423488 576460752303423489 }
+do_fts3_varint_test 2.60 { 
+    1152921504606846975 1152921504606846976 1152921504606846977 }
+do_fts3_varint_test 2.61 { 
+    2305843009213693951 2305843009213693952 2305843009213693953 }
+do_fts3_varint_test 2.62 { 
+    4611686018427387903 4611686018427387904 4611686018427387905 }
+
+if {![catch {fts3_test_varint 18446744073709551615}]} {
+  do_fts3_varint_test 2.63 { 
+      9223372036854775807 9223372036854775808 9223372036854775809 }
+
+  do_fts3_varint_test 3.0 { 18446744073709551615 -18446744073709551615 }
+}
+
+finish_test
diff --git a/test/fts4aa.test b/test/fts4aa.test
new file mode 100644
index 0000000000000000000000000000000000000000..0c6c0b972f1afbdb512265c090d3b8f67f8318fe
--- /dev/null
+++ b/test/fts4aa.test
@@ -0,0 +1,256 @@
+# 2010 February 02
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS4 module.
+#
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+# Create the fts_kjv_genesis procedure which fills and FTS3/4 table with
+# the complete text of the Book of Genesis.
+#
+source $testdir/genesis.tcl
+
+# The following is a list of queries to perform against the above
+# FTS3/FTS4 database.  We will be trying these queries in various
+# configurations to ensure that they always return the same answers.
+#
+set fts4aa_queries {
+  {abraham}
+  {the king}
+  {"the king"}
+  {abraham OR joseph}
+  {ab* OR jos*}
+  {lived t*}
+  {spake hebrew}
+  {melchizedek}
+  {t* melchizedek}
+  {melchizedek t*}
+}
+unset -nocomplain fts4aa_res
+
+# Set up the baseline results
+#
+do_test fts4aa-1.0 {
+  db eval {
+    CREATE VIRTUAL TABLE t1 USING fts4(words, tokenize porter);
+  }
+  fts_kjv_genesis
+  foreach q $::fts4aa_queries {
+    set r [db eval {SELECT docid FROM t1 WHERE words MATCH $q ORDER BY docid}]
+    set ::fts4aa_res($q) $r
+  }
+} {}
+
+# Legacy test cases
+#
+do_test fts4aa-1.1 {
+  db eval {
+    SELECT docid FROM t1 EXCEPT SELECT docid FROM t1_docsize
+  }
+} {}
+do_test fts4aa-1.2 {
+  db eval {
+    SELECT docid FROM t1_docsize EXCEPT SELECT docid FROM t1
+  }
+} {}
+
+proc mit {blob} {
+  set scan(littleEndian) i*
+  set scan(bigEndian) I*
+  binary scan $blob $scan($::tcl_platform(byteOrder)) r
+  return $r
+}
+db func mit mit
+
+do_test fts4aa-1.3 {
+  db eval {
+    SELECT docid, mit(matchinfo(t1, 'pcxnal')) FROM t1 WHERE t1 MATCH 'melchizedek';
+  }
+} {1014018 {1 1 1 1 1 1533 25 20}}
+do_test fts4aa-1.4 {
+  db eval {
+    SELECT docid, mit(matchinfo(t1, 'pcxnal')) FROM t1
+     WHERE t1 MATCH 'spake hebrew'
+     ORDER BY docid;
+  }
+} {1039014 {2 1 1 40 40 1 6 6 1533 25 42} 1039017 {2 1 1 40 40 1 6 6 1533 25 26}}
+do_test fts4aa-1.5 {
+  db eval {
+    SELECT docid, mit(matchinfo(t1, 'pcxnal')) FROM t1
+     WHERE t1 MATCH 'laban overtook jacob'
+     ORDER BY docid;
+  }
+} {1031025 {3 1 2 54 46 1 3 3 2 181 160 1533 25 24}}
+
+do_test fts4aa-1.6 {
+  db eval {
+    DELETE FROM t1 WHERE docid!=1050026;
+    SELECT hex(size) FROM t1_docsize;
+    SELECT hex(value) FROM t1_stat;
+  }
+} {17 01176F}
+
+do_test fts4aa-1.7 {
+  db eval {
+    SELECT docid FROM t1 EXCEPT SELECT docid FROM t1_docsize
+  }
+} {}
+do_test fts4aa-1.8 {
+  db eval {
+    SELECT docid FROM t1_docsize EXCEPT SELECT docid FROM t1
+  }
+} {}
+ifcapable fts4_deferred {
+  do_test fts4aa-1.9 {
+    # Note: Token 'in' is being deferred in the following query. 
+    db eval {
+      SELECT docid, mit(matchinfo(t1, 'pcxnal')) FROM t1
+       WHERE t1 MATCH 'joseph died in egypt'
+       ORDER BY docid;
+    }
+  } {1050026 {4 1 1 1 1 1 1 1 2 1 1 1 1 1 1 23 23}}
+}
+
+# Should get the same search results from FTS3
+#
+do_test fts4aa-2.0 {
+  db eval {
+    DROP TABLE t1;
+    CREATE VIRTUAL TABLE t1 USING fts3(words, tokenize porter);
+  }
+  fts_kjv_genesis
+} {}
+unset -nocomplain ii
+set ii 0
+foreach {q r} [array get fts4aa_res] {
+  incr ii
+  do_test fts4aa-2.$ii {
+    db eval {SELECT docid FROM t1 WHERE words MATCH $::q ORDER BY docid}
+  } $r
+}
+
+# Should get the same search results when the page size is very large
+#
+do_test fts4aa-3.0 {
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+  db eval {
+    PRAGMA page_size=65536;
+    CREATE VIRTUAL TABLE t1 USING fts4(words, tokenize porter);
+  }
+  fts_kjv_genesis
+} {}
+unset -nocomplain ii
+set ii 0
+foreach {q r} [array get fts4aa_res] {
+  incr ii
+  do_test fts4aa-3.$ii {
+    db eval {SELECT docid FROM t1 WHERE words MATCH $::q ORDER BY docid}
+  } $r
+}
+
+# Should get the same search results when an authorizer prevents
+# all PRAGMA statements.
+#
+proc no_pragma_auth {code arg1 arg2 arg3 arg4 args} {
+  if {$code=="SQLITE_PRAGMA"} {return SQLITE_DENY}
+  return SQLITE_OK;
+}
+do_test fts4aa-4.0 {
+  db auth ::no_pragma_auth
+  db eval {
+    DROP TABLE t1;
+    CREATE VIRTUAL TABLE t1 USING fts4(words, tokenize porter);
+  }
+  fts_kjv_genesis
+} {}
+unset -nocomplain ii
+set ii 0
+foreach {q r} [array get fts4aa_res] {
+  incr ii
+  do_test fts4aa-4.$ii {
+    db eval {SELECT docid FROM t1 WHERE words MATCH $::q ORDER BY docid}
+  } $r
+}
+
+# 2019-11-16 https://bugs.chromium.org/p/chromium/issues/detail?id=1025472
+#
+db close
+sqlite3 db :memory:
+do_execsql_test fts4aa-5.10 {
+  CREATE VIRTUAL TABLE t1 USING fts4(a, b, c, d, e,f,g,h,i,j,k,l,m,n,o,p,q,r);
+  INSERT INTO t1 VALUES('X Y', '2', '3', '4', '5', '6', '7', '8', '9', '0',
+                        'a','b','c','d','e','f','g','h');
+  UPDATE t1_docsize SET size=x'88' WHERE docid=1;
+} {}
+do_catchsql_test fts4aa-5.20 {
+  SELECT quote(matchinfo(t1, 'l')) FROM t1 WHERE t1 MATCH 'X Y';
+} {1 {database disk image is malformed}}
+do_execsql_test fts4aa-5.30 {
+  DROP TABLE t1;
+  CREATE VIRTUAL TABLE t1 USING fts4(a,b,c,d);
+  INSERT INTO t1 VALUES('one two','three four','five six','seven eight');
+} {}
+do_catchsql_test fts4aa-5.40 {
+  UPDATE t1_stat SET value=x'01010101' WHERE id=0;
+  SELECT quote(matchinfo(t1,'a')) FROM t1 WHERE t1 MATCH 'one two';
+} {1 {database disk image is malformed}}
+do_catchsql_test fts4aa-5.50 {
+  UPDATE t1_stat SET value=x'010101' WHERE id=0;
+  SELECT quote(matchinfo(t1,'a')) FROM t1 WHERE t1 MATCH 'one two';
+} {1 {database disk image is malformed}}
+do_catchsql_test fts4aa-5.60 {
+  UPDATE t1_stat SET value=x'01' WHERE id=0;
+  SELECT quote(matchinfo(t1,'a')) FROM t1 WHERE t1 MATCH 'one two';
+} {1 {database disk image is malformed}}
+do_catchsql_test fts4aa-5.70 {
+  UPDATE t1_stat SET value=x'' WHERE id=0;
+  SELECT quote(matchinfo(t1,'a')) FROM t1 WHERE t1 MATCH 'one two';
+} {1 {database disk image is malformed}}
+
+# 2019-11-18 https://bugs.chromium.org/p/chromium/issues/detail?id=1025467
+db close
+sqlite3 db :memory:
+if {$tcl_platform(byteOrder)=="littleEndian"} {
+  set res {X'0200000000000000000000000E0000000E00000001000000010000000100000001000000'}
+} else {
+  set res {X'0000000200000000000000000000000E0000000E00000001000000010000000100000001'}
+}
+do_catchsql_test fts4aa-6.10 {
+  CREATE VIRTUAL TABLE f USING fts4();
+  INSERT INTO f_segdir VALUES (77,91,0,0,'255 77',x'0001308000004d5c4ddddddd4d4d7b4d4d4d614d8019ff4d05000001204d4d2e4d6e4d4d4d4b4d6c4d004d4d4d4d4d4d3d000000004d5d4d4d645d4d004d4d4d4d4d4d4d4d4d454d6910004d05ffff054d646c4d004d5d4d4d4d4d3d000000004d4d4d4d4d4d4d4d4d4d4d69624d4d4d04004d4d4d4d4d604d4ce1404d554d45');
+  INSERT INTO f_segdir VALUES (77,108,0,0,'255 77',x'0001310000fa64004d4d4d3c5d4d654d4d4d614d8000ff4d05000001204d4d2e4d6e4d4d4dff4d4d4d4d4d4d00104d4d4d4d000000004d4d4d0400311d4d4d4d4d4d4d4d4d4d684d6910004d05ffff054d4d6c4d004d4d4d4d4d4d3d000000004d4d4d4d644d4d4d4d4d4d69624d4d4d03ed4d4d4d4d4d604d4ce1404d550080');
+  INSERT INTO f_stat VALUES (0,x'80808080100000000064004d4d4d3c4d4d654d4d4d614d8000ff4df6ff1a00204d4d2e4d6e4d4d4d104d4d4d4d4d4d00104d4d4d4d4d4d69574d4d4d000031044d4d4d3e4d4d4c4d05004d6910');
+  SELECT quote(matchinfo(f,'pnax')) from f where f match '0 1';
+} {1 {database disk image is malformed}}
+
+# 2019-11-18 Detect infinite loop in fts3SelectLeaf()
+db close
+sqlite3 db :memory:
+do_catchsql_test fts4aa-7.10 {
+  CREATE VIRTUAL TABLE f USING fts4();
+  INSERT INTO f_segdir VALUES (63,60,60,60,'60 60',x'3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c483c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c20003c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c283c3c3c3c3c3c3c3c3c3c3c223c3c3c3c3c3c3c3c3c');
+  INSERT INTO f_segments VALUES (60,x'3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c5a3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c2a3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c5e3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c803c3c3c3c3c3c233c3c3c3c1c3c3c3c3c3c3c3c3c3c3c3c1b3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c273c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c1a3c3c3c3c3c3c000200003c3c3c3c3c3c3c3c3c3c3c3c3c383c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d898d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d3c3c3c3c3c3c3c3c3c3cba3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c1c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c00023c3c3c3c3c3c383c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3cbc3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c2c3c3c3c403c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c16161616161616163c3c3c3c3c3c3c3c3c3c3c3c3c583c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c2b3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c1c013c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c20003c3c3c3c3c3c3c3c3c3c3c800000003c3c3c3c3c3c3c2c3c3c3c3c3c3c353c08080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808f4080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808083c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c323c3c3c3c3c3c3c3c3c3c3c4f3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3cfcfcfcfcfcfcfcfcfcfcfc10fcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfd02fcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfcfc03e8fcfcfcfc3c3c3c3c3c3c8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d8d3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c553c3c3c3c3c3c3c3c3c3c3c3c3c573c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c000000803c3c4dd5d5a6d52cf3d5d5d5d5d5d5d5d5d5d5d5d5d5d53c3c3c3c3f3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c2d3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c013c3c3c3c00643c3c3c3ce93c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c263c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c363c3c3c3c3c3c3c3c3c3c3c3c3c3c543c3c3c3c3c3c3c3c3c3c273c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c330000003c3c3c3c3c3c3c3c3c3c3c3c3c3c4d3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c000010003c3c3c3c3c3c413c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c1c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c403c3c3c3c3c3c3c3c3c3c3c3cec0000fa3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c2d3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c4c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c5e3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c1b3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c593c3c3c3c3c3c243c3c373c3c3c3c3cff3c3c3c3c3c3c3c3c3c3c3c3c3c000080003c3c3c3c3c3c3c3c3c3c353c3c3c3c3c3d3c3c3c3c3c3c3c3c3c3c3c3c4d3c3c3c3c3c3c3c3c3c3c3c3c3c40003c3c3c3c3c293c3c3c3c3c3c3c3c3c3d3c3c3c3c3c3c3c3c353c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c4f3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3f3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3cff7f3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c2d3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3ca43c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3cbf3c3c3c3c3c3c3c3c3c008000003c3c3c3c3c3c3c3c343c3c373c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c593c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c3c');
+  SELECT * from f where f match '0';
+} {1 {database disk image is malformed}}
+
+
+finish_test
diff --git a/test/fts4check.test b/test/fts4check.test
new file mode 100644
index 0000000000000000000000000000000000000000..7f1004d8b30fce46c6808ce30d413b80dc55965a
--- /dev/null
+++ b/test/fts4check.test
@@ -0,0 +1,223 @@
+# 2012 March 26
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library. The
+# focus of this script is testing the FTS 'integrity-check' function,
+# used to check if the current FTS index accurately reflects the content
+# of the table.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/fts3_common.tcl
+set ::testprefix fts4check
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+# Run the integrity-check on FTS table $tbl using database handle $db. If
+# the integrity-check passes, return "ok". Otherwise, throw an exception.
+#
+proc fts_integrity {db tbl} {
+  $db eval "INSERT INTO $tbl ($tbl) VALUES('integrity-check')"
+  return "ok"
+}
+
+#-------------------------------------------------------------------------
+# Test cases 1.*
+#
+#   1.0: Build a reasonably sized FTS table (5000 rows).
+#
+#   1.1: Run the integrity check code to check it passes.
+#
+#   1.2: Make a series of minor changes to the underlying FTS data structures
+#        (e.g. delete or insert a row from the %_content table). Check that
+#        this causes the integrity-check code to fail.
+#
+
+# Build an FTS table and check the integrity-check passes.
+#
+do_test 1.0 { fts3_build_db_1 5000 } {}
+do_test 1.1 { fts_integrity db t1 } {ok}
+
+# Mess around with the underlying tables. Check that this causes the
+# integrity-check test to fail.
+#
+foreach {tn disruption} {
+  1 {
+    INSERT INTO t1_content(docid, c0x, c1y) VALUES(NULL, 'a', 'b');
+  }
+  2 {
+    DELETE FROM t1_content WHERE docid = (SELECT max(docid) FROM t1_content);
+  }
+  3 {
+    DELETE FROM t1_segdir WHERE level=0 AND idx=(
+      SELECT max(idx) FROM t1_segdir WHERE level=0
+    );
+  }
+} {
+  sqlite3_db_config db DEFENSIVE 0
+  do_execsql_test  1.2.1.$tn "BEGIN; $disruption"
+  do_catchsql_test 1.2.2.$tn {
+    INSERT INTO t1 (t1) VALUES('integrity-check')
+  } {1 {database disk image is malformed}}
+  do_execsql_test 1.2.3.$tn {
+    PRAGMA integrity_check;
+  } {{malformed inverted index for FTS4 table main.t1}}
+  do_execsql_test  1.2.4.$tn "ROLLBACK"
+}
+
+do_test 1.3 { fts_integrity db t1 } {ok}
+
+#-------------------------------------------------------------------------
+# Test cases 2.*
+#
+#   2.0: Build a reasonably sized FTS table (20000 rows) that includes
+#        prefix indexes.
+#
+#   2.1: Run the integrity check code to check it passes.
+#
+#   2.2: Make a series of minor changes to the underlying FTS data structures
+#        (e.g. delete or insert a row from the %_content table). Check that
+#        this causes the integrity-check code to fail.
+#
+
+do_test 2.0 { fts3_build_db_2 -extra {prefix="3,1"} 20000 } {}
+do_test 2.1 { fts_integrity db t2 } {ok}
+foreach {tn disruption} {
+  1 {
+    INSERT INTO t2_content VALUES(NULL, 'xyz')
+  }
+  3 {
+    DELETE FROM t2_segdir WHERE level=0 AND idx=(
+      SELECT max(idx) FROM t2_segdir WHERE level=1024
+    );
+  }
+} {
+  sqlite3_db_config db DEFENSIVE 0
+  do_execsql_test  2.2.1.$tn "BEGIN; $disruption"
+  do_catchsql_test 2.2.2.$tn {
+    INSERT INTO t2 (t2) VALUES('integrity-check')
+  } {1 {database disk image is malformed}}
+  do_test 2.2.3.$tn {
+    db eval {PRAGMA integrity_check(t2);}
+  } {{malformed inverted index for FTS4 table main.t2}}
+  do_execsql_test  2.2.4.$tn "ROLLBACK"
+}
+
+
+#-------------------------------------------------------------------------
+# Test cases 3.*
+#
+#   3.0: Build a reasonably sized FTS table (5000 rows) that includes
+#        prefix indexes and uses the languageid= feature.
+#
+#   3.1: Run the integrity check code to check it passes.
+#
+#   3.2: Make a series of minor changes to the underlying FTS data structures
+#        (e.g. delete or insert a row from the %_content table). Check that
+#        this causes the integrity-check code to fail.
+#
+do_test 3.0 {
+  reset_db
+  fts3_build_db_1 5000
+  execsql {
+    CREATE VIRTUAL TABLE t3 USING fts4(x, y, prefix="2,3", languageid=langid);
+  }
+  foreach docid [execsql {SELECT docid FROM t1 ORDER BY 1 ASC}] {
+    execsql {
+      INSERT INTO t3(x, y, langid) 
+      SELECT x, y, (docid%9)*4 FROM t1 WHERE docid=$docid;
+    }
+  }
+} {}
+do_test 3.1 { fts_integrity db t3 } {ok}
+
+foreach {tn disruption} {
+  1 {
+    INSERT INTO t3_content(c0x, c1y, langid) VALUES(NULL, 'a', 0);
+  }
+  2 {
+    UPDATE t3_content SET langid=langid+1 WHERE rowid = (
+      SELECT max(rowid) FROM t3_content
+    )
+  }
+} {
+  sqlite3_db_config db DEFENSIVE 0
+  do_execsql_test  3.2.1.$tn "BEGIN; $disruption"
+  do_catchsql_test 3.2.2.$tn {
+    INSERT INTO t3 (t3) VALUES('integrity-check')
+  } {1 {database disk image is malformed}}
+  do_execsql_test  3.2.3.$tn "ROLLBACK"
+}
+
+#--------------------------------------------------------------------------
+# Test case 4.*
+#
+# Test that the integrity-check works if there are "notindexed" columns.
+#
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE t4 USING fts4(a, b, c, notindexed=b);
+  INSERT INTO t4 VALUES('text one', 'text two', 'text three');
+  INSERT INTO t4(t4) VALUES('integrity-check');
+}
+
+sqlite3_db_config db DEFENSIVE 0
+do_execsql_test 4.1 {
+  PRAGMA writable_schema = 1;
+  UPDATE sqlite_master 
+    SET sql = 'CREATE VIRTUAL TABLE t4 USING fts4(a, b, c)' 
+    WHERE name = 't4';
+}
+
+do_test 4.2 {
+  db close
+  sqlite3 db test.db
+  catchsql {
+    INSERT INTO t4(t4) VALUES('integrity-check');
+  }
+} {1 {database disk image is malformed}}
+reset_db
+
+#--------------------------------------------------------------------------
+# Test case 5.*
+#
+# Test that the integrity-check works if there is uncommitted data.
+#
+do_execsql_test 5.0 {
+  BEGIN;
+  CREATE VIRTUAL TABLE t5 USING fts4(a, prefix="1,2,3");
+  INSERT INTO t5 VALUES('And down by Kosiosko, where the reed-banks sweep');
+  INSERT INTO t5 VALUES('and sway, and the rolling plains are wide, the');
+  INSERT INTO t5 VALUES('man from snowy river is a household name today,');
+  INSERT INTO t5 VALUES('and the stockmen tell the story of his ride');
+}
+
+do_execsql_test 5.1 {
+  INSERT INTO t5(t5) VALUES('integrity-check');
+} {}
+
+sqlite3_db_config db DEFENSIVE 0
+do_catchsql_test 5.2 {
+  INSERT INTO t5_content VALUES(5, 'his hardy mountain pony');
+  INSERT INTO t5(t5) VALUES('integrity-check');
+} {1 {database disk image is malformed}}
+
+do_execsql_test 5.3 ROLLBACK
+
+do_execsql_test 5.4 {
+  CREATE VIRTUAL TABLE t5 USING fts4(a, prefix="1,2,3");
+  INSERT INTO t5(t5) VALUES('integrity-check');
+} {}
+
+finish_test
diff --git a/test/fts4content.test b/test/fts4content.test
new file mode 100644
index 0000000000000000000000000000000000000000..980586ea3aa864464c49b2d3db8771fac4a7cef5
--- /dev/null
+++ b/test/fts4content.test
@@ -0,0 +1,674 @@
+# 2011 October 03
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the content=xxx FTS4 option.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix fts4content
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+#-------------------------------------------------------------------------
+# Test organization:
+#   
+#   1.* - Warm-body tests.
+#
+#   2.* - Querying a content=xxx FTS table.
+#
+#   3.* - Writing to a content=xxx FTS table.
+#
+#   4.* - The "INSERT INTO fts(fts) VALUES('rebuild')" command.
+#
+#   5.* - Check that CREATE TABLE, DROP TABLE and ALTER TABLE correctly
+#         ignore any %_content table when used with the content=xxx option.
+#
+#   6.* - Test the effects of messing with the schema of table xxx after
+#         creating a content=xxx FTS index.
+#   
+#   7.* - Test that if content=xxx is specified and table xxx does not
+#         exist, the FTS table can still be used for INSERT and some
+#         SELECT statements.
+#
+#   8.* - Test that if the content=xxx and prefix options are used together,
+#         the 'rebuild' command still works.
+#
+#   9.* - Test using content=xxx where xxx is a virtual table.
+#
+#   11.* - Test that circular references (e.g. "t1(content=t1)") are
+#          detected.
+#
+
+do_execsql_test 1.1.1 {
+  CREATE TABLE t1(a, b, c);
+  INSERT INTO t1 VALUES('w x', 'x y', 'y z');
+  CREATE VIRTUAL TABLE ft1 USING fts4(content=t1);
+}
+
+do_execsql_test 1.1.2 {
+  PRAGMA table_info(ft1);
+} {
+  0 a {} 0 {} 0 
+  1 b {} 0 {} 0 
+  2 c {} 0 {} 0
+}
+
+do_execsql_test 1.1.3 { SELECT *, rowid FROM ft1 } {{w x} {x y} {y z} 1}
+do_execsql_test 1.1.4 { SELECT a, c FROM ft1 WHERE rowid=1 } {{w x} {y z}}
+
+do_execsql_test 1.1.5 { INSERT INTO ft1(ft1) VALUES('rebuild') } {}
+do_execsql_test 1.1.6 { SELECT rowid FROM ft1 WHERE ft1 MATCH 'x' } {1}
+do_execsql_test 1.1.7 { SELECT rowid FROM ft1 WHERE ft1 MATCH 'a' } {}
+
+do_execsql_test 1.2.1 {
+  DROP TABLE ft1;
+  CREATE VIRTUAL TABLE ft1 USING fts4(content=t1, b);
+  PRAGMA table_info(ft1);
+} {
+  0 b {} 0 {} 0 
+}
+do_execsql_test 1.2.2 { 
+  SELECT *, rowid FROM ft1 
+} {{x y} 1}
+
+#-------------------------------------------------------------------------
+# The following block of tests - 2.* - test that a content=xxx FTS table
+# can be queried. Also tested are cases where rows identified in the FTS
+# are missing from the content table, and cases where the index is 
+# inconsistent with the content table.
+# 
+do_execsql_test 2.0 {
+  CREATE TABLE t2(x);
+  INSERT INTO t2 VALUES('O S W W F U C R Q I C N P Z Y Y E Y Y E');  -- 1
+  INSERT INTO t2 VALUES('Y X U V L B E H Y J C Y A I A P V F V K');  -- 2
+  INSERT INTO t2 VALUES('P W I N J H I I N I F B K D U Q B Z S F');  -- 3
+  INSERT INTO t2 VALUES('N R O R H J R H G M D I U U B O M P A U');  -- 4
+  INSERT INTO t2 VALUES('Y O V O G T P N G T N F I V B U M J M G');  -- 5
+  INSERT INTO t2 VALUES('J O B N K N E C H Z R K J O U G M K L S');  -- 6
+  INSERT INTO t2 VALUES('S Z S R I Q U A P W R X H K C Z U L S P');  -- 7
+  INSERT INTO t2 VALUES('J C H N R C K R V N M O F Z M Z A I H W');  -- 8
+  INSERT INTO t2 VALUES('O Y G I S J U U W O D Z F J K N R P R L');  -- 9
+  INSERT INTO t2 VALUES('B G L K U R U P V X Z I H V R W C Q A S');  -- 10
+  INSERT INTO t2 VALUES('T F T J F F Y V F W N X K Q A Y L X W G');  -- 11
+  INSERT INTO t2 VALUES('C J U H B Q X L C M M Y E G V F W V Z C');  -- 12
+  INSERT INTO t2 VALUES('B W L T F S G X D P H N G M R I O A X I');  -- 13
+  INSERT INTO t2 VALUES('N G Y O K Q K Z N M H U J E D H U W R K');  -- 14
+  INSERT INTO t2 VALUES('U D T R U Y F J D S J X E H Q G V A S Z');  -- 15
+  INSERT INTO t2 VALUES('M I W P J S H R J D Q I C G P C T P H R');  -- 16
+  INSERT INTO t2 VALUES('J M N I S L X Q C A B F C B Y D H V R J');  -- 17
+  INSERT INTO t2 VALUES('F V Z W J Q L P X Y E W B U Q N H X K T');  -- 18
+  INSERT INTO t2 VALUES('R F S R Y O F Q E I E G H C B H R X Y N');  -- 19
+  INSERT INTO t2 VALUES('U Q Q Q T E P D M F X P J G H X C Q D L');  -- 20
+}
+
+do_execsql_test 2.1 {
+  CREATE VIRTUAL TABLE ft2 USING fts4(content=t2);
+  INSERT INTO ft2(ft2) VALUES('rebuild');
+
+  -- Modify the backing table a bit: Row 17 is missing and the contents 
+  -- of row 20 do not match the FTS index contents. 
+  DELETE FROM t2 WHERE rowid = 17;
+  UPDATE t2 SET x = 'a b c d e f g h i j' WHERE rowid = 20;
+}
+
+foreach {tn match rowidlist} {
+  1   {S}        {1 3 6 7 9 10 13 15 16 17 19}
+  2   {"S R"}    {7 19}
+  3   {"N K N"}  {6}
+  4   {"Q Q"}    {20}
+  5   {"B Y D"}  {17}
+} {
+  do_execsql_test 2.2.1.$tn {
+    SELECT rowid FROM ft2 WHERE ft2 MATCH $match
+  } $rowidlist
+
+  do_execsql_test 2.2.2.$tn {
+    SELECT docid FROM ft2 WHERE ft2 MATCH $match
+  } $rowidlist
+}
+
+foreach {tn match result} {
+  1   {"N K N"}  {{J O B N K N E C H Z R K J O U G M K L S}}
+  2   {"Q Q"}    {{a b c d e f g h i j}}
+  3   {"B Y D"}  {{}}
+} {
+  do_execsql_test 2.3.$tn {
+    SELECT * FROM ft2 WHERE ft2 MATCH $match
+  } $result
+}
+
+foreach {tn match result} {
+  1   {"N K N"}  {{..O B [N] [K] [N] E..}}
+  2   {"B Y D"}  {{}}
+  3   {"Q Q"}    {{a [b] [c] [d] e f..}}
+} {
+  do_execsql_test 2.4.$tn {
+    SELECT snippet(ft2, '[', ']', '..', -1, 6) FROM ft2 WHERE ft2 MATCH $match
+  } $result
+}
+
+foreach {tn match result} {
+  1   {"N K N"}  {{0 0 6 1 0 1 8 1 0 2 10 1}}
+  2   {"B Y D"}  {{}}
+  3   {"Q Q"}    {{0 0 2 1 0 0 4 1 0 1 4 1 0 1 6 1}}
+  4   {"Q D L"}  {{}}
+} {
+  do_execsql_test 2.5.$tn {
+    SELECT offsets(ft2) FROM ft2 WHERE ft2 MATCH $match
+  } $result
+}
+
+#-------------------------------------------------------------------------
+# The following block of tests - 3.* - test that the FTS index can be
+# modified by writing to the table. But that this has no effect on the 
+# content table.
+# 
+
+do_execsql_test 3.1 {
+  CREATE TABLE t3(x, y);
+  CREATE VIRTUAL TABLE ft3 USING fts4(content=t3);
+}
+
+do_catchsql_test 3.1.1 {
+  INSERT INTO ft3 VALUES('a b c', 'd e f');
+} {1 {constraint failed}}
+do_execsql_test 3.1.2 {
+  INSERT INTO ft3(docid, x, y) VALUES(21, 'a b c', 'd e f');
+  SELECT rowid FROM ft3 WHERE ft3 MATCH '"a b c"';
+} {21}
+do_execsql_test 3.1.3 { SELECT * FROM t3 } {}
+
+# This DELETE does not work, since there is no row in [t3] to base the
+# DELETE on. So the SELECT on [ft3] still returns rowid 21.
+do_execsql_test 3.1.4 { 
+  DELETE FROM ft3;
+  SELECT rowid FROM ft3 WHERE ft3 MATCH '"a b c"';
+} {21}
+
+# If the row is added to [t3] before the DELETE on [ft3], it works.
+do_execsql_test 3.1.5 {
+  INSERT INTO t3(rowid, x, y) VALUES(21, 'a b c', 'd e f');
+  DELETE FROM ft3;
+  SELECT rowid FROM ft3 WHERE ft3 MATCH '"a b c"';
+} {}
+do_execsql_test 3.1.6 { SELECT rowid FROM t3 } {21}
+
+do_execsql_test 3.2.1 {
+  INSERT INTO ft3(rowid, x, y) VALUES(0, 'R T M S M', 'A F O K H');
+  INSERT INTO ft3(rowid, x, y) VALUES(1, 'C Z J O X', 'U S Q D K');
+  INSERT INTO ft3(rowid, x, y) VALUES(2, 'N G H P O', 'N O P O C');
+  INSERT INTO ft3(rowid, x, y) VALUES(3, 'V H S D R', 'K N G E C');
+  INSERT INTO ft3(rowid, x, y) VALUES(4, 'J T R V U', 'U X S L C');
+  INSERT INTO ft3(rowid, x, y) VALUES(5, 'N A Y N G', 'X D G P Y');
+  INSERT INTO ft3(rowid, x, y) VALUES(6, 'I Q I S P', 'D R O Q B');
+  INSERT INTO ft3(rowid, x, y) VALUES(7, 'T K T Z J', 'B W D G O');
+  INSERT INTO ft3(rowid, x, y) VALUES(8, 'Y K F X T', 'D F G V G');
+  INSERT INTO ft3(rowid, x, y) VALUES(9, 'E L E T L', 'P W N F Z');
+  INSERT INTO ft3(rowid, x, y) VALUES(10, 'O G J G X', 'G J F E P');
+  INSERT INTO ft3(rowid, x, y) VALUES(11, 'O L N N Z', 'K E Z F D');
+  INSERT INTO ft3(rowid, x, y) VALUES(12, 'R Z M R J', 'X G I M Z');
+  INSERT INTO ft3(rowid, x, y) VALUES(13, 'L X N N X', 'R R N S T');
+  INSERT INTO ft3(rowid, x, y) VALUES(14, 'F L B J H', 'K W F L C');
+  INSERT INTO ft3(rowid, x, y) VALUES(15, 'P E B M V', 'E A A B U');
+  INSERT INTO ft3(rowid, x, y) VALUES(16, 'V E C F P', 'L U T V K');
+  INSERT INTO ft3(rowid, x, y) VALUES(17, 'T N O Z N', 'T P Q X N');
+  INSERT INTO ft3(rowid, x, y) VALUES(18, 'V W U W R', 'H O A A V');
+  INSERT INTO ft3(rowid, x, y) VALUES(19, 'A H N L F', 'I G H B O');
+}
+
+foreach {tn match rowidlist} {
+  1   "N A"    {5 19}
+  2   "x:O"    {1 2 10 11 17}
+  3   "y:O"    {0 2 6 7 18 19}
+} {
+  set res [list]
+  foreach rowid $rowidlist { lappend res $rowid {} {} }
+
+  do_execsql_test 3.2.2.$tn {
+    SELECT rowid, * FROM ft3 WHERE ft3 MATCH $match
+  } $res
+  do_execsql_test 3.2.3.$tn {
+    SELECT docid, * FROM ft3 WHERE ft3 MATCH $match
+  } $res
+}
+
+do_execsql_test 3.3.1 {
+  INSERT INTO t3(rowid, x, y) VALUES(0, 'R T M S M', 'A F O K H');
+  INSERT INTO t3(rowid, x, y) VALUES(1, 'C Z J O X', 'U S Q D K');
+  INSERT INTO t3(rowid, x, y) VALUES(2, 'N G H P O', 'N O P O C');
+  INSERT INTO t3(rowid, x, y) VALUES(3, 'V H S D R', 'K N G E C');
+  INSERT INTO t3(rowid, x, y) VALUES(4, 'J T R V U', 'U X S L C');
+  INSERT INTO t3(rowid, x, y) VALUES(5, 'N A Y N G', 'X D G P Y');
+  UPDATE ft3 SET x = y, y = x;
+  DELETE FROM t3;
+}
+
+foreach {tn match rowidlist} {
+  1   "N A"    {5 19}
+  2   "x:O"    {0 2 10 11 17}
+  3   "y:O"    {1 2 6 7 18 19}
+} {
+  set res [list]
+  foreach rowid $rowidlist { lappend res $rowid {} {} }
+
+  do_execsql_test 3.3.2.$tn {
+    SELECT rowid, * FROM ft3 WHERE ft3 MATCH $match
+  } $res
+  do_execsql_test 3.3.3.$tn {
+    SELECT docid, * FROM ft3 WHERE ft3 MATCH $match
+  } $res
+}
+
+do_execsql_test 3.3.1 {
+  INSERT INTO t3(rowid, x, y) VALUES(15, 'P E B M V', 'E A A B U');
+  INSERT INTO t3(rowid, x, y) VALUES(16, 'V E C F P', 'L U T V K');
+  INSERT INTO t3(rowid, x, y) VALUES(17, 'T N O Z N', 'T P Q X N');
+  INSERT INTO t3(rowid, x, y) VALUES(18, 'V W U W R', 'H O A A V');
+  INSERT INTO t3(rowid, x, y) VALUES(19, 'A H N L F', 'I G H B O');
+  DELETE FROM ft3;
+}
+
+foreach {tn match rowidlist} {
+  1   "N A"    {5}
+  2   "x:O"    {0 2 10 11}
+  3   "y:O"    {1 2 6 7}
+} {
+  set res [list]
+  foreach rowid $rowidlist { lappend res $rowid {} {} }
+
+  do_execsql_test 3.3.2.$tn {
+    SELECT rowid, * FROM ft3 WHERE ft3 MATCH $match
+  } $res
+  do_execsql_test 3.3.3.$tn {
+    SELECT docid, * FROM ft3 WHERE ft3 MATCH $match
+  } $res
+}
+
+
+#-------------------------------------------------------------------------
+# Test cases 4.* test the 'rebuild' command. On content=xxx and regular
+# FTS tables.
+# 
+do_execsql_test 4.0 {
+  CREATE TABLE t4(x);
+  CREATE VIRTUAL TABLE ft4 USING fts4(content=t4);
+  CREATE VIRTUAL TABLE ft4x USING fts4(x);
+}
+
+do_execsql_test 4.1.1 {
+  INSERT INTO ft4x(ft4x) VALUES('rebuild');
+  INSERT INTO ft4(ft4) VALUES('rebuild');
+} {}
+do_execsql_test 4.1.2 {
+  SELECT id, quote(value) FROM ft4_stat
+} {0 X'000000'}
+do_execsql_test 4.1.3 {
+  SELECT id, quote(value) FROM ft4x_stat
+} {0 X'000000'}
+
+do_execsql_test 4.2.1 {
+  INSERT INTO ft4x VALUES('M G M F T');
+  INSERT INTO ft4x VALUES('Z Q C A U');
+  INSERT INTO ft4x VALUES('N L L V');
+  INSERT INTO ft4x VALUES('T F D X D');
+  INSERT INTO ft4x VALUES('Z H I S D');
+
+  SELECT id, quote(value) FROM ft4x_stat
+} {0 X'05182B'}
+
+do_execsql_test 4.2.2 {
+  INSERT INTO ft4(rowid, x) SELECT rowid, * FROM ft4x;
+  SELECT id, quote(value) FROM ft4_stat
+} {0 X'05182B'}
+
+do_execsql_test 4.2.3 {
+  SELECT docid, quote(size) FROM ft4_docsize
+} {1 X'05' 2 X'05' 3 X'04' 4 X'05' 5 X'05'}
+
+do_execsql_test 4.2.4 {
+  INSERT INTO ft4x(ft4x) VALUES('rebuild');
+  SELECT id, quote(value) FROM ft4x_stat;
+  SELECT docid, quote(size) FROM ft4x_docsize
+} {0 X'05182B' 1 X'05' 2 X'05' 3 X'04' 4 X'05' 5 X'05'}
+
+do_execsql_test 4.2.5 {
+  INSERT INTO ft4(ft4) VALUES('rebuild');
+  SELECT id, quote(value) FROM ft4_stat;
+  SELECT docid, quote(size) FROM ft4_docsize
+} {0 X'000000'}
+
+do_execsql_test 4.2.6 {
+  INSERT INTO t4(rowid, x) SELECT rowid, x FROM ft4x;
+  INSERT INTO ft4(ft4) VALUES('rebuild');
+  SELECT id, quote(value) FROM ft4_stat;
+  SELECT docid, quote(size) FROM ft4_docsize
+} {0 X'05182B' 1 X'05' 2 X'05' 3 X'04' 4 X'05' 5 X'05'}
+
+
+#-------------------------------------------------------------------------
+# Test cases 5.* test that the following commands do not create/move or
+# delete a %_content table when used with a content=xxx FTS table.
+# 
+do_execsql_test 5.1.1 {
+  CREATE TABLE t5(a, b, c, d);
+  CREATE VIRTUAL TABLE ft5 USING fts4(content=t5);
+  SELECT name FROM sqlite_master WHERE name LIKE '%t5%';
+} {
+  t5 ft5 ft5_segments ft5_segdir 
+  sqlite_autoindex_ft5_segdir_1 ft5_docsize ft5_stat
+}
+do_execsql_test 5.1.2 {
+  ALTER TABLE ft5 RENAME TO ft6;
+  SELECT name FROM sqlite_master WHERE name LIKE '%t5%';
+} {
+  t5
+}
+do_execsql_test 5.1.3 {
+  SELECT name FROM sqlite_master WHERE name LIKE '%t6%';
+} {
+  ft6 ft6_segments ft6_segdir 
+  sqlite_autoindex_ft6_segdir_1 ft6_docsize ft6_stat
+}
+do_execsql_test 5.1.4 {
+  INSERT INTO t5 VALUES('a', 'b', 'c', 'd');
+  INSERT INTO ft6(ft6) VALUES('rebuild');
+  SELECT rowid FROM ft6 WHERE ft6 MATCH 'b';
+} {1}
+do_execsql_test 5.1.5 {
+  DROP TABLE ft6;
+  SELECT * FROM t5;
+} {a b c d}
+do_execsql_test 5.1.6 {
+  SELECT name FROM sqlite_master WHERE name LIKE '%t6%';
+} {
+}
+do_execsql_test 5.1.7 {
+  CREATE VIRTUAL TABLE ft5 USING fts4(content=t5);
+  CREATE TABLE t5_content(a, b);
+  DROP TABLE ft5;
+  SELECT name FROM sqlite_master WHERE name LIKE '%t5%';
+} {
+  t5 t5_content
+}
+
+#-------------------------------------------------------------------------
+# Test cases 6.* test 
+# 
+do_catchsql_test 6.1.1 {
+  CREATE VIRTUAL TABLE ft7 USING fts4(content=t7);
+} {1 {no such table: main.t7}}
+
+do_execsql_test 6.2.1 {
+  CREATE TABLE t7(one, two);
+  CREATE VIRTUAL TABLE ft7 USING fts4(content=t7);
+  INSERT INTO t7 VALUES('A B', 'B A');
+  INSERT INTO t7 VALUES('C D', 'A A');
+  SELECT * FROM ft7;
+} {
+  {A B} {B A} {C D} {A A}
+}
+
+do_catchsql_test 6.2.2 {
+  DROP TABLE t7;
+  SELECT * FROM ft7;
+} {1 {SQL logic error}}
+
+db close
+sqlite3 db test.db
+do_execsql_test 6.2.3 {
+  SELECT name FROM sqlite_master WHERE name LIKE '%t7%'
+} {
+  ft7 ft7_segments ft7_segdir sqlite_autoindex_ft7_segdir_1 
+  ft7_docsize ft7_stat
+}
+do_catchsql_test 6.2.4 {
+  SELECT * FROM ft7;
+} {1 {no such table: main.t7}}
+do_execsql_test 6.2.5 {
+  CREATE TABLE t7(x, y);
+  INSERT INTO t7 VALUES('A B', 'B A');
+  INSERT INTO t7 VALUES('C D', 'A A');
+  SELECT * FROM ft7;
+} {
+  {A B} {B A} {C D} {A A}
+}
+
+do_execsql_test 6.2.6 {
+  INSERT INTO ft7(ft7) VALUES('rebuild');
+  SELECT rowid FROM ft7 WHERE ft7 MATCH '"A A"';
+} {2}
+
+do_execsql_test 6.2.7 {
+  DROP TABLE t7;
+  CREATE TABLE t7(x);
+}
+do_catchsql_test 6.2.8 {
+  SELECT * FROM ft7 WHERE ft7 MATCH '"A A"';
+} {1 {SQL logic error}}
+do_catchsql_test 6.2.9 {
+  SELECT * FROM ft7 WHERE ft7 MATCH '"A A"';
+} {1 {SQL logic error}}
+
+db close
+sqlite3 db test.db
+do_catchsql_test 6.2.10 {
+  SELECT rowid FROM ft7 WHERE ft7 MATCH '"A A"';
+} {0 2}
+do_catchsql_test 6.2.11 {
+  SELECT rowid, * FROM ft7 WHERE ft7 MATCH '"A A"';
+} {0 {2 {}}}
+
+#-------------------------------------------------------------------------
+# Test cases 7.*
+# 
+do_execsql_test 7.1.1 {
+  CREATE VIRTUAL TABLE ft8 USING fts4(content=nosuchtable, x);
+  INSERT INTO ft8(docid, x) VALUES(13, 'U O N X G');
+  INSERT INTO ft8(docid, x) VALUES(14, 'C J J U B');
+  INSERT INTO ft8(docid, x) VALUES(15, 'N J Y G X');
+  INSERT INTO ft8(docid, x) VALUES(16, 'R Y D O R');
+  INSERT INTO ft8(docid, x) VALUES(17, 'I Y T Q O');
+}
+
+do_execsql_test 7.1.2 {
+  SELECT docid FROM ft8 WHERE ft8 MATCH 'N';
+} {13 15}
+
+do_execsql_test 7.2.1 {
+  CREATE VIRTUAL TABLE ft9 USING fts4(content=, x);
+  INSERT INTO ft9(docid, x) VALUES(13, 'U O N X G');
+  INSERT INTO ft9(docid, x) VALUES(14, 'C J J U B');
+  INSERT INTO ft9(docid, x) VALUES(15, 'N J Y G X');
+  INSERT INTO ft9(docid, x) VALUES(16, 'R Y D O R');
+  INSERT INTO ft9(docid, x) VALUES(17, 'I Y T Q O');
+}
+do_execsql_test 7.2.2 {
+  SELECT docid FROM ft9 WHERE ft9 MATCH 'N';
+} {13 15}
+do_execsql_test 7.2.3 {
+  SELECT name FROM sqlite_master WHERE name LIKE 'ft9_%';
+} {ft9_segments ft9_segdir ft9_docsize ft9_stat}
+
+do_catchsql_test 7.2.4 {
+  SELECT * FROM ft9 WHERE ft9 MATCH 'N';
+} {1 {SQL logic error}}
+
+#-------------------------------------------------------------------------
+# Test cases 8.*
+# 
+do_execsql_test 8.1 {
+  CREATE TABLE t10(a, b);
+  INSERT INTO t10 VALUES(
+      'abasia abasic abask', 'Abassin abastardize abatable');
+  INSERT INTO t10 VALUES(
+      'abate abatement abater', 'abatis abatised abaton');
+  INSERT INTO t10 VALUES(
+      'abator abattoir Abatua', 'abature abave abaxial');
+
+  CREATE VIRTUAL TABLE ft10 USING fts4(content=t10, prefix="2,4", a, b);
+}
+
+do_execsql_test 8.2 { SELECT * FROM ft10 WHERE a MATCH 'ab*';          }
+do_execsql_test 8.3 { INSERT INTO ft10(ft10) VALUES('rebuild');        }
+do_execsql_test 8.4 { SELECT rowid FROM ft10 WHERE a MATCH 'ab*';      } {1 2 3}
+do_execsql_test 8.5 { SELECT rowid FROM ft10 WHERE b MATCH 'abav*';    } {3}
+do_execsql_test 8.6 { SELECT rowid FROM ft10 WHERE ft10 MATCH 'abas*'; } {1}
+
+#-------------------------------------------------------------------------
+# Test cases 9.*
+# 
+reset_db
+register_echo_module [sqlite3_connection_pointer db]
+
+do_execsql_test 9.1 {
+  CREATE TABLE tbl1(a, b);
+  INSERT INTO tbl1 VALUES('a b', 'c d');
+  INSERT INTO tbl1 VALUES('e f', 'a b');
+  CREATE VIRTUAL TABLE e1 USING echo(tbl1);
+  CREATE VIRTUAL TABLE ft1 USING fts4(content=e1);
+  INSERT INTO ft1(ft1) VALUES('rebuild');
+}
+
+do_execsql_test 9.2 {
+  SELECT rowid, * FROM ft1 WHERE ft1 MATCH 'e'
+} {2 {e f} {a b}}
+
+do_execsql_test 9.3 {
+  SELECT rowid, * FROM ft1 WHERE ft1 MATCH 'a'
+} {1 {a b} {c d} 2 {e f} {a b}}
+
+do_execsql_test 9.4 { 
+  DELETE FROM ft1 WHERE docid=1;
+}
+
+do_execsql_test 9.5 {
+  SELECT rowid, * FROM ft1 WHERE ft1 MATCH 'a'
+} {2 {e f} {a b}}
+
+do_execsql_test 9.6 {
+  INSERT INTO ft1(ft1) VALUES('rebuild');
+  SELECT rowid, * FROM ft1 WHERE ft1 MATCH 'a'
+} {1 {a b} {c d} 2 {e f} {a b}}
+
+
+#-------------------------------------------------------------------------
+# Test cases 10.*
+# 
+reset_db
+register_fs_module [sqlite3_connection_pointer db]
+
+proc write_file {path text} {
+  set fd [open $path w]
+  puts -nonewline $fd $text
+  close $fd
+}
+
+write_file t1.txt {a b c d e f g h i j k l m n o p q r s t u v w x y z}
+write_file t2.txt {a b c d e f g h i j k l m a b c d e f g h i j k l m}
+write_file t3.txt {n o p q r s t u v w x y z n o p q r s t u v w x y z}
+
+do_execsql_test 10.1 {
+  CREATE TABLE idx(id INTEGER PRIMARY KEY, path TEXT);
+  INSERT INTO idx VALUES (1, 't1.txt');
+  INSERT INTO idx VALUES (2, 't2.txt');
+  INSERT INTO idx VALUES (3, 't3.txt');
+
+  CREATE VIRTUAL TABLE vt USING fs(idx);
+  SELECT path, data FROM vt;
+} {
+  1 {a b c d e f g h i j k l m n o p q r s t u v w x y z} 
+  2 {a b c d e f g h i j k l m a b c d e f g h i j k l m}
+  3 {n o p q r s t u v w x y z n o p q r s t u v w x y z}
+}
+
+do_execsql_test 10.2 {
+  SELECT path, data FROM vt WHERE rowid = 2;
+} {
+  2 {a b c d e f g h i j k l m a b c d e f g h i j k l m}
+}
+
+do_execsql_test 10.3 {
+  CREATE VIRTUAL TABLE ft USING fts4(content=vt);
+  INSERT INTO ft(ft) VALUES('rebuild');
+}
+
+do_execsql_test 10.4 {
+  SELECT snippet(ft, '[', ']', '...', -1, 5) FROM ft WHERE ft MATCH 'e'
+} {
+  {...c d [e] f g...} {...c d [e] f g...}
+}
+
+do_execsql_test 10.5 {
+  SELECT snippet(ft, '[', ']', '...', -1, 5) FROM ft WHERE ft MATCH 't'
+} {
+  {...r s [t] u v...} {...r s [t] u v...}
+}
+
+do_execsql_test 10.6 { DELETE FROM ft WHERE docid=2 }
+
+do_execsql_test 10.7 {
+  SELECT snippet(ft, '[', ']', '...', -1, 5) FROM ft WHERE ft MATCH 'e'
+} {
+  {...c d [e] f g...}
+}
+
+#-------------------------------------------------------------------------
+# Test cases 11.*
+# 
+reset_db
+
+do_catchsql_test 11.1 {
+  CREATE VIRTUAL TABLE x1 USING fts4(content=x1);
+} {1 {vtable constructor called recursively: x1}}
+
+#---------------------------------------------------------------------------
+# Check that an fts4 table cannot be its own content table.
+#
+reset_db
+breakpoint
+do_execsql_test 12.1.1 {
+  CREATE VIRTUAL TABLE t1 USING fts4(a, content=t1 );
+  INSERT INTO t1(rowid, a) VALUES(1, 'abc');
+}
+do_catchsql_test 12.1.2 { 
+  SELECT * FROM t1; 
+} {1 {SQL logic error}}
+do_catchsql_test 12.1.3 { 
+  SELECT * FROM t1('abc'); 
+} {1 {SQL logic error}}
+do_catchsql_test 12.1.4 { 
+  SELECT count(*) FROM t1;
+} {1 {SQL logic error}}
+
+reset_db
+do_execsql_test 12.2.1 {
+  CREATE VIRTUAL TABLE t1 USING fts4(a, content=t2 );
+  CREATE VIRTUAL TABLE t2 USING fts4(a, content=t1 );
+  INSERT INTO t1(rowid, a) VALUES(1, 'abc');
+}
+do_catchsql_test 12.2.2 { 
+  SELECT * FROM t1; 
+} {1 {SQL logic error}}
+do_catchsql_test 12.2.3 { 
+  SELECT * FROM t1('abc'); 
+} {1 {SQL logic error}}
+do_catchsql_test 12.2.4 { 
+  SELECT count(*) FROM t1;
+} {1 {SQL logic error}}
+
+
+
+finish_test
diff --git a/test/fts4docid.test b/test/fts4docid.test
new file mode 100644
index 0000000000000000000000000000000000000000..2328b6ec1d3cf6ea2537b13a94d29ed758077ee1
--- /dev/null
+++ b/test/fts4docid.test
@@ -0,0 +1,116 @@
+# 2012 March 26
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/fts3_common.tcl
+set ::testprefix fts4docid
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+# Initialize a table with pseudo-randomly generated data.
+#
+do_execsql_test 1.0 { CREATE VIRTUAL TABLE t1 USING fts4; }
+do_test 1.1 {
+  foreach {docid content} {
+    0  {F N K B T I K V B A}    1  {D M J E S P H E L O}
+    2  {W U T Q T Q T L H G}    3  {D W H M B R S Z B K}
+    4  {F Q I N P Q J L Z D}    5  {J O Q E Y A O E L B}
+    6  {O V R A C R K C Y H}    7  {Z J H T Q Q O R A G}
+    8  {L K J W G D Y W B M}    9  {K E Y I A Q R Q T S}
+    10 {N P H Y Z M R T I C}    11 {E X H O I S E S Z F}
+    12 {B Y Q T J X C L L J}    13 {Q D C U U A Q E Z U}
+    14 {S I T C J R X S J M}    15 {M X M K E X L H Q Y}
+    16 {O W E I C H U Y S Y}    17 {P V V E M T H C C S}
+    18 {L Y A M I E N M X O}    19 {S Y R U L S Q Y F P}
+    20 {U J S T T J J S V X}    21 {T E I W P O V A A P}
+    22 {W D K H D H F G O J}    23 {T X Y P G M J U I L}
+    24 {F V X E B C N B K W}    25 {E B A Y N N T Z I C}
+    26 {G E E B C P U D H G}    27 {J D J K N S B Q T M}
+    28 {Q T G M D O D Y V G}    29 {P X W I W V P W Z G}
+  } {
+    execsql { INSERT INTO t1(docid, content) VALUES($docid, $content) }
+  }
+} {}
+
+# Quick test regarding affinites and the docid/rowid column.
+do_execsql_test 2.1.1 { SELECT docid FROM t1 WHERE docid = 5 } {5}
+do_execsql_test 2.1.2 { SELECT docid FROM t1 WHERE docid = '5' } {5}
+do_execsql_test 2.1.3 { SELECT docid FROM t1 WHERE docid = +5 } {5}
+do_execsql_test 2.1.4 { SELECT docid FROM t1 WHERE docid = +'5' } {5}
+do_execsql_test 2.1.5 { SELECT docid FROM t1 WHERE docid < 5 } {0 1 2 3 4}
+do_execsql_test 2.1.6 { SELECT docid FROM t1 WHERE docid < '5' } {0 1 2 3 4}
+
+do_execsql_test 2.2.1 { SELECT rowid FROM t1 WHERE rowid = 5 } {5}
+do_execsql_test 2.2.2 { SELECT rowid FROM t1 WHERE rowid = '5' } {5}
+do_execsql_test 2.2.3 { SELECT rowid FROM t1 WHERE rowid = +5 } {5}
+do_execsql_test 2.2.4 { SELECT rowid FROM t1 WHERE rowid = +'5' } {5}
+do_execsql_test 2.2.5 { SELECT rowid FROM t1 WHERE rowid < 5 } {0 1 2 3 4}
+do_execsql_test 2.2.6 { SELECT rowid FROM t1 WHERE rowid < '5' } {0 1 2 3 4}
+
+#-------------------------------------------------------------------------
+# Now test a bunch of full-text queries featuring range constraints on
+# the docid field. Each query is run so that the range constraint:
+#
+#   * is on the docid field,
+#   * is on the docid field with a unary +,
+#   * is on the rowid field,
+#   * is on the rowid field with a unary +.
+#
+# Queries are run with both "ORDER BY docid DESC" and "ORDER BY docid ASC"
+# clauses.
+#
+foreach {tn where result} {
+  1 {WHERE t1 MATCH 'O' AND xxx < 17}                {1 5 6 7 11 16}
+  2 {WHERE t1 MATCH 'O' AND xxx < 4123456789123456}  {1 5 6 7 11 16 18 21 22 28}
+  3 {WHERE t1 MATCH 'O' AND xxx < 1}                 {}
+  4 {WHERE t1 MATCH 'O' AND xxx < -4123456789123456} {}
+
+  5 {WHERE t1 MATCH 'O' AND xxx > 17}                {18 21 22 28}
+  6 {WHERE t1 MATCH 'O' AND xxx > 4123456789123456}  {}
+  7 {WHERE t1 MATCH 'O' AND xxx > 1}                 {5 6 7 11 16 18 21 22 28}
+  8 {WHERE t1 MATCH 'O' AND xxx > -4123456789123456} {1 5 6 7 11 16 18 21 22 28}
+
+  9 {WHERE t1 MATCH '"Q T"' AND xxx < 27}  {2 9 12}
+  10 {WHERE t1 MATCH '"Q T"' AND xxx <= 27} {2 9 12 27}
+  11 {WHERE t1 MATCH '"Q T"' AND xxx > 27}  {28}
+  12 {WHERE t1 MATCH '"Q T"' AND xxx >= 27} {27 28}
+} {
+  foreach {tn2 ref order} {
+    1  docid "ORDER BY docid ASC"
+    2 +docid "ORDER BY docid ASC"
+    3  rowid "ORDER BY docid ASC"
+    4 +rowid "ORDER BY docid ASC"
+
+    5  docid "ORDER BY docid DESC"
+    6 +docid "ORDER BY docid DESC"
+    7  rowid "ORDER BY docid DESC"
+    8 +rowid "ORDER BY docid DESC"
+  } {
+    set w [string map "xxx $ref" $where]
+    set q "SELECT docid FROM t1 $w $order"
+
+    if {$tn2<5} {
+      set r [lsort -integer -increasing $result] 
+    } else {
+      set r [lsort -integer -decreasing $result] 
+    }
+
+    do_execsql_test 3.$tn.$tn2 $q $r
+  }
+}
+
+finish_test
diff --git a/test/fts4growth.test b/test/fts4growth.test
new file mode 100644
index 0000000000000000000000000000000000000000..5cf877747b845ec80519e2cdb80cad7bcab346d9
--- /dev/null
+++ b/test/fts4growth.test
@@ -0,0 +1,441 @@
+# 2014 May 12
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS4 module.
+#
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix fts4growth
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+source $testdir/genesis.tcl
+
+sqlite3_db_config db DEFENSIVE 0
+do_execsql_test 1.1 { CREATE VIRTUAL TABLE x1 USING fts3; }
+
+do_test 1.2 {
+  foreach L {
+    {"See here, young man," said Mulga Bill, "from Walgett to the sea,}
+    {From Conroy's Gap to Castlereagh, there's none can ride like me.}
+    {I'm good all round at everything as everybody knows,}
+    {Although I'm not the one to talk -- I hate a man that blows.}
+  } {
+    execsql { INSERT INTO x1 VALUES($L) }
+  }
+  execsql { SELECT end_block, length(root) FROM x1_segdir }
+} {{0 114} 114 {0 118} 118 {0 95} 95 {0 115} 115}
+
+do_execsql_test 1.3 {
+  INSERT INTO x1(x1) VALUES('optimize');
+  SELECT level, end_block, length(root) FROM x1_segdir;
+} {0 {0 394} 394}
+
+do_test 1.4 {
+  foreach L {
+    {But riding is my special gift, my chiefest, sole delight;}
+    {Just ask a wild duck can it swim, a wildcat can it fight.}
+    {There's nothing clothed in hair or hide, or built of flesh or steel,}
+    {There's nothing walks or jumps, or runs, on axle, hoof, or wheel,}
+    {But what I'll sit, while hide will hold and girths and straps are tight:}
+    {I'll ride this here two-wheeled concern right straight away at sight."}
+  } {
+    execsql { INSERT INTO x1 VALUES($L) }
+  }
+  execsql { 
+    INSERT INTO x1(x1) VALUES('merge=4,4');
+    SELECT level, end_block, length(root) FROM x1_segdir;
+  }
+} {1 {224 921} 2}
+
+do_execsql_test 1.5 {
+  SELECT length(block) FROM x1_segments;
+} {921 {}}
+
+do_test 1.6 {
+  foreach L {
+    {'Twas Mulga Bill, from Eaglehawk, that sought his own abode,}
+    {That perched above Dead Man's Creek, beside the mountain road.}
+    {He turned the cycle down the hill and mounted for the fray,}
+    {But 'ere he'd gone a dozen yards it bolted clean away.}
+
+    {It left the track, and through the trees, just like a silver steak,}
+    {It whistled down the awful slope towards the Dead Man's Creek.}
+    {It shaved a stump by half an inch, it dodged a big white-box:}
+    {The very wallaroos in fright went scrambling up the rocks,}
+
+    {The wombats hiding in their caves dug deeper underground,}
+    {As Mulga Bill, as white as chalk, sat tight to every bound.}
+    {It struck a stone and gave a spring that cleared a fallen tree,}
+    {It raced beside a precipice as close as close could be;}
+
+    {And then as Mulga Bill let out one last despairing shriek}
+    {It made a leap of twenty feet into the Dead Man's Creek.}
+    {It shaved a stump by half an inch, it dodged a big white-box:}
+    {The very wallaroos in fright went scrambling up the rocks,}
+    {The wombats hiding in their caves dug deeper underground,}
+  } {
+    execsql { INSERT INTO x1 VALUES($L) }
+  }
+  execsql { 
+    SELECT level, end_block, length(root) FROM x1_segdir;
+  }
+} {1 {224 921} 2 1 {226 1230} 7 0 {0 98} 98}
+
+do_execsql_test 1.7 {
+  SELECT sum(length(block)) FROM x1_segments WHERE blockid IN (224,225,226)
+} {1230}
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test 2.1 { 
+  CREATE TABLE t1(docid, words);
+  CREATE VIRTUAL TABLE x2 USING fts4;
+}
+fts_kjv_genesis 
+do_test 2.2 {
+  foreach id [db eval {SELECT docid FROM t1}] {
+    execsql {
+      INSERT INTO x2(docid, content) SELECT $id, words FROM t1 WHERE docid=$id
+    }
+  }
+  foreach id [db eval {SELECT docid FROM t1}] {
+    execsql {
+      INSERT INTO x2(docid, content) SELECT NULL, words FROM t1 WHERE docid=$id
+    }
+    if {[db one {SELECT count(*) FROM x2_segdir WHERE level<2}]==2} break
+  }
+} {}
+
+do_execsql_test 2.3 { 
+  SELECT count(*) FROM x2_segdir WHERE level=2;
+  SELECT count(*) FROM x2_segdir WHERE level=3;
+} {6 0}
+
+do_execsql_test 2.4 { 
+  INSERT INTO x2(x2) VALUES('merge=4,4');
+  SELECT count(*) FROM x2_segdir WHERE level=2;
+  SELECT count(*) FROM x2_segdir WHERE level=3;
+} {6 1}
+
+do_execsql_test 2.5 { 
+  SELECT end_block FROM x2_segdir WHERE level=3;
+  INSERT INTO x2(x2) VALUES('merge=4,4');
+  SELECT end_block FROM x2_segdir WHERE level=3;
+  INSERT INTO x2(x2) VALUES('merge=4,4');
+  SELECT end_block FROM x2_segdir WHERE level=3;
+} {{5588 -3950} {5588 -11766} {5588 -15541}}
+
+do_execsql_test 2.6 {
+  SELECT sum(length(block)) FROM x2_segdir, x2_segments WHERE 
+    blockid BETWEEN start_block AND leaves_end_block
+    AND level=3
+} {15541}
+
+do_execsql_test 2.7 { 
+  INSERT INTO x2(x2) VALUES('merge=1000,4');
+  SELECT end_block FROM x2_segdir WHERE level=3;
+} {{5588 127563}}
+
+do_execsql_test 2.8 {
+  SELECT sum(length(block)) FROM x2_segdir, x2_segments WHERE 
+    blockid BETWEEN start_block AND leaves_end_block
+    AND level=3
+} {127563}
+
+#--------------------------------------------------------------------------
+# Test that delete markers are removed from FTS segments when possible.
+# It is only possible to remove delete markers when the output of the
+# merge operation will become the oldest segment in the index.
+#
+#   3.1 - when the oldest segment is created by an 'optimize'.
+#   3.2 - when the oldest segment is created by an incremental merge.
+#   3.3 - by a crisis merge.
+#
+
+proc insert_doc {args} {
+  foreach iDoc $args {
+    set L [lindex {
+      {In your eagerness to engage the Trojans,}
+      {don’t any of you charge ahead of others,}
+      {trusting in your strength and horsemanship.}
+      {And don’t lag behind. That will hurt our charge.}
+      {Any man whose chariot confronts an enemy’s}
+      {should thrust with his spear at him from there.}
+      {That’s the most effective tactic, the way}
+      {men wiped out city strongholds long ago —}
+      {their chests full of that style and spirit.}
+    } [expr $iDoc%9]]
+    execsql { REPLACE INTO x3(docid, content) VALUES($iDoc, $L) }
+  }
+}
+
+proc delete_doc {args} {
+  foreach iDoc $args {
+    execsql { DELETE FROM x3 WHERE docid = $iDoc }
+  }
+}
+
+proc second {x} { lindex $x 1 }
+db func second second
+
+do_execsql_test 3.0 { CREATE VIRTUAL TABLE x3 USING fts4 }
+
+do_test 3.1.1 {
+  db transaction { insert_doc 1 2 3 4 5 6 }
+  execsql { SELECT level, idx, second(end_block) FROM x3_segdir }
+} {0 0 412}
+do_test 3.1.2 {
+  delete_doc 1 2 3 4 5 6
+  execsql { SELECT count(*) FROM x3_segdir }
+} {0}
+do_test 3.1.3 {
+  db transaction { 
+    insert_doc 1 2 3 4 5 6 7 8 9
+    delete_doc 9 8 7
+  }
+  execsql { SELECT level, idx, second(end_block) FROM x3_segdir }
+} {0 0 591 0 1 65 0 2 72 0 3 76}
+do_test 3.1.4 {
+  execsql { INSERT INTO x3(x3) VALUES('optimize') }
+  execsql { SELECT level, idx, second(end_block) FROM x3_segdir }
+} {0 0 412}
+
+do_test 3.2.1 {
+  execsql { DELETE FROM x3 }
+  insert_doc 8 7 6 5 4 3 2 1
+  delete_doc 7 8
+  execsql { SELECT count(*) FROM x3_segdir }
+} {10}
+do_test 3.2.2 {
+  execsql { INSERT INTO x3(x3) VALUES('merge=500,10') }
+  execsql { SELECT level, idx, second(end_block) FROM x3_segdir }
+} {1 0 412}
+
+# This assumes the crisis merge happens when there are already 16 
+# segments and one more is added.
+#
+do_test 3.3.1 {
+  execsql { DELETE FROM x3 }
+  insert_doc 1 2 3 4 5 6  7 8 9 10 11
+  delete_doc 11 10 9 8 7
+  execsql { SELECT count(*) FROM x3_segdir }
+} {16}
+
+do_test 3.3.2 {
+  insert_doc 12
+  execsql { SELECT level, idx, second(end_block) FROM x3_segdir WHERE level=1 }
+} {1 0 412}
+
+#--------------------------------------------------------------------------
+# Check a theory on a bug in fts4 - that segments with idx==0 were not 
+# being incrementally merged correctly. Theory turned out to be false.
+#
+do_execsql_test 4.1 {
+  DROP TABLE IF EXISTS x4;
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(docid, words);
+  CREATE VIRTUAL TABLE x4 USING fts4(words);
+}
+do_test 4.2 {
+  fts_kjv_genesis 
+  execsql { INSERT INTO x4 SELECT words FROM t1 }
+  execsql { INSERT INTO x4 SELECT words FROM t1 }
+} {}
+
+do_execsql_test 4.3 {
+  SELECT level, idx, second(end_block) FROM x4_segdir 
+} {0 0 117483 0 1 118006}
+
+do_execsql_test 4.4 {
+  INSERT INTO x4(x4) VALUES('merge=10,2');
+  SELECT count(*) FROM x4_segdir;
+} {3}
+
+do_execsql_test 4.5 {
+  INSERT INTO x4(x4) VALUES('merge=10,2');
+  SELECT count(*) FROM x4_segdir;
+} {3}
+
+do_execsql_test 4.6 {
+  INSERT INTO x4(x4) VALUES('merge=1000,2');
+  SELECT count(*) FROM x4_segdir;
+} {1}
+
+
+
+#--------------------------------------------------------------------------
+# Check that segments are not promoted if the "end_block" field does not
+# contain a size.
+#
+do_execsql_test 5.1 {
+  DROP TABLE IF EXISTS x2;
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(docid, words);
+  CREATE VIRTUAL TABLE x2 USING fts4;
+}
+fts_kjv_genesis 
+
+proc first {L} {lindex $L 0}
+db func first first
+
+do_test 5.2 {
+  foreach r [db eval { SELECT rowid FROM t1 }] {
+    execsql {
+      INSERT INTO x2(docid, content) SELECT docid, words FROM t1 WHERE rowid=$r
+    }
+  }
+  foreach d [db eval { SELECT docid FROM t1 LIMIT -1 OFFSET 20 }] {
+    execsql { DELETE FROM x2 WHERE docid = $d }
+  }
+
+  execsql {
+    INSERT INTO x2(x2) VALUES('optimize');
+    SELECT level, idx, end_block FROM x2_segdir
+  }
+} {2 0 {752 1926}}
+
+do_execsql_test 5.3 {
+  UPDATE x2_segdir SET end_block = CAST( first(end_block) AS INTEGER );
+  SELECT end_block, typeof(end_block) FROM x2_segdir;
+} {752 integer}
+
+do_execsql_test 5.4 {
+  INSERT INTO x2 SELECT words FROM t1 LIMIT 50;
+  SELECT level, idx, end_block FROM x2_segdir
+} {2 0 752 0 0 {758 5174}}
+
+do_execsql_test 5.5 {
+  UPDATE x2_segdir SET end_block = end_block || ' 1926' WHERE level=2;
+  INSERT INTO x2 SELECT words FROM t1 LIMIT 40;
+  SELECT level, idx, end_block FROM x2_segdir
+} {0 0 {752 1926} 0 1 {758 5174} 0 2 {763 4170}}
+
+proc t1_to_x2 {} {
+  foreach id [db eval {SELECT docid FROM t1 LIMIT 2}] {
+    execsql {
+      DELETE FROM x2 WHERE docid=$id;
+      INSERT INTO x2(docid, content) SELECT $id, words FROM t1 WHERE docid=$id;
+    }
+  }
+}
+
+#--------------------------------------------------------------------------
+# Check that segments created by auto-merge are not promoted until they
+# are completed.
+#
+
+do_execsql_test 6.1 {
+  CREATE VIRTUAL TABLE x5 USING fts4;
+  INSERT INTO x5 SELECT words FROM t1 LIMIT 100 OFFSET 0;
+  INSERT INTO x5 SELECT words FROM t1 LIMIT 100 OFFSET 25;
+  INSERT INTO x5 SELECT words FROM t1 LIMIT 100 OFFSET 50;
+  INSERT INTO x5 SELECT words FROM t1 LIMIT 100 OFFSET 75;
+  SELECT count(*) FROM x5_segdir
+} {4}
+
+do_execsql_test 6.2 {
+  INSERT INTO x5(x5) VALUES('merge=2,4');
+  SELECT level, idx, end_block FROM x5_segdir;
+} {0 0 {10 9216} 0 1 {21 9330} 0 2 {31 8850} 0 3 {40 8689} 1 0 {1320 -3117}}
+
+do_execsql_test 6.3 {
+  INSERT INTO x5 SELECT words FROM t1 LIMIT 100 OFFSET 100;
+  SELECT level, idx, end_block FROM x5_segdir;
+} {
+  0 0 {10 9216} 0 1 {21 9330} 0 2 {31 8850} 
+  0 3 {40 8689} 1 0 {1320 -3117} 0 4 {1329 8297}
+}
+
+do_execsql_test 6.4 {
+  INSERT INTO x5(x5) VALUES('merge=200,4');
+  SELECT level, idx, end_block FROM x5_segdir;
+} {0 0 {1329 8297} 1 0 {1320 28009}}
+
+do_execsql_test 6.5 {
+  INSERT INTO x5 SELECT words FROM t1;
+  SELECT level, idx, end_block FROM x5_segdir;
+} {
+  0 1 {1329 8297} 0 0 {1320 28009} 0 2 {1449 118006}
+}
+
+#--------------------------------------------------------------------------
+# Ensure that if part of an incremental merge is performed by an old
+# version that does not support storing segment sizes in the end_block
+# field, no size is stored in the final segment (as it would be incorrect).
+#
+do_execsql_test 7.1 {
+  CREATE VIRTUAL TABLE x6 USING fts4;
+  INSERT INTO x6 SELECT words FROM t1;
+  INSERT INTO x6 SELECT words FROM t1;
+  INSERT INTO x6 SELECT words FROM t1;
+  INSERT INTO x6 SELECT words FROM t1;
+  INSERT INTO x6 SELECT words FROM t1;
+  INSERT INTO x6 SELECT words FROM t1;
+  SELECT level, idx, end_block FROM x6_segdir;
+} {
+  0 0 {118 117483} 0 1 {238 118006} 0 2 {358 118006} 
+  0 3 {478 118006} 0 4 {598 118006} 0 5 {718 118006}
+}
+
+do_execsql_test 7.2 {
+  INSERT INTO x6(x6) VALUES('merge=25,4');
+  SELECT level, idx, end_block FROM x6_segdir;
+} {
+  0 0 {118 117483} 0 1 {238 118006} 0 2 {358 118006} 
+  0 3 {478 118006} 0 4 {598 118006} 0 5 {718 118006}
+  1 0 {23694 -69477}
+}
+
+do_execsql_test 7.3 {
+  UPDATE x6_segdir SET end_block = first(end_block) WHERE level=1;
+  SELECT level, idx, end_block FROM x6_segdir;
+} {
+  0 0 {118 117483} 0 1 {238 118006} 0 2 {358 118006} 
+  0 3 {478 118006} 0 4 {598 118006} 0 5 {718 118006}
+  1 0 23694
+}
+
+do_execsql_test 7.4 {
+  INSERT INTO x6(x6) VALUES('merge=25,4');
+  SELECT level, idx, end_block FROM x6_segdir;
+} {
+  0 0 {118 117483} 0 1 {238 118006} 0 2 {358 118006} 
+  0 3 {478 118006} 0 4 {598 118006} 0 5 {718 118006}
+  1 0 23694
+}
+
+do_execsql_test 7.5 {
+  INSERT INTO x6(x6) VALUES('merge=2500,4');
+  SELECT level, idx, start_block, leaves_end_block, end_block FROM x6_segdir;
+} {
+  1 0 719 1171 23694
+}
+
+do_execsql_test 7.6 {
+  INSERT INTO x6(x6) VALUES('merge=2500,2');
+  SELECT level, idx, start_block, leaves_end_block, end_block FROM x6_segdir;
+} {
+  1 0 719 1171 23694
+}
+
+do_execsql_test 7.7 {
+  SELECT sum(length(block)) FROM x6_segments 
+} {635247}
+
+
+finish_test
diff --git a/test/fts4growth2.test b/test/fts4growth2.test
new file mode 100644
index 0000000000000000000000000000000000000000..bcccf89c87a53f63431450659bbfa0727eedf272
--- /dev/null
+++ b/test/fts4growth2.test
@@ -0,0 +1,92 @@
+# 2014 May 12
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS4 module.
+#
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix fts4growth2
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+source $testdir/genesis.tcl
+
+do_execsql_test 1.0 { CREATE TABLE t1(docid, words); }
+fts_kjv_genesis 
+
+proc structure {} {
+  puts [ db eval {SELECT level, count(*) FROM x1_segdir GROUP BY level} ]
+}
+
+proc tt {val} {
+  execsql {
+    DELETE FROM x1 
+      WHERE docid IN (SELECT docid FROM t1 WHERE (rowid-1)%4==$val+0);
+  }
+  execsql {
+    INSERT INTO x1(docid, content) 
+      SELECT docid, words FROM t1 WHERE (rowid%4)==$val+0;
+  }
+}
+
+do_execsql_test 1.1 {
+  CREATE VIRTUAL TABLE x1 USING fts4;
+  INSERT INTO x1(x1) VALUES('automerge=2');
+}
+
+do_test 1.2 {
+  for {set i 0} {$i < 40} {incr i} {
+    tt 0 ; tt 1 ; tt 2 ; tt 3
+  }
+  execsql { 
+    SELECT max(level) FROM x1_segdir; 
+    SELECT count(*) FROM x1_segdir WHERE level=2;
+  }
+} {2 1}
+
+do_test 1.3 {
+  for {set i 0} {$i < 40} {incr i} {
+    tt 0 ; tt 1 ; tt 2 ; tt 3
+  }
+  execsql { 
+    SELECT max(level) FROM x1_segdir; 
+    SELECT count(*) FROM x1_segdir WHERE level=2;
+  }
+} {2 1}
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test 2.1 {
+  DELETE FROM t1 WHERE rowid>16;
+  DROP TABLE IF EXISTS x1;
+  CREATE VIRTUAL TABLE x1 USING fts4;
+}
+
+db func second second
+proc second {L} {lindex $L 1}
+
+for {set tn 0} {$tn < 40} {incr tn} {
+  do_test 2.2.$tn {
+    for {set i 0} {$i < 100} {incr i} {
+      tt 0 ; tt 1 ; tt 2 ; tt 3
+    }
+    execsql { SELECT max(level) FROM x1_segdir }
+  } {1}
+}
+
+
+finish_test
diff --git a/test/fts4incr.test b/test/fts4incr.test
new file mode 100644
index 0000000000000000000000000000000000000000..92104888b427a1869d851fd383ba236109c56dde
--- /dev/null
+++ b/test/fts4incr.test
@@ -0,0 +1,77 @@
+# 2012 March 26
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/fts3_common.tcl
+set ::testprefix fts4incr
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+# Create the fts_kjv_genesis procedure which fills and FTS3/4 table 
+# with the complete text of the Book of Genesis.
+#
+source $testdir/genesis.tcl
+
+do_test 1.0 {
+  execsql { CREATE VIRTUAL TABLE t1 USING fts4(words) }
+  fts_kjv_genesis
+} {}
+
+do_execsql_test 1.1 {
+  SELECT min(docid), max(docid) FROM t1;
+} {1001001 1050026}
+
+foreach {tn q res} {
+  1 { SELECT count(*) FROM t1 WHERE t1 MATCH 'and' AND docid < 1010000} 224
+  2 { SELECT count(*) FROM t1 WHERE t1 MATCH '"in the"' AND docid < 1010000} 47
+  3 { SELECT count(*) FROM t1 WHERE t1 MATCH '"And God"' AND docid < 1010000} 33
+  4 { SELECT count(*) FROM t1 WHERE t1 
+      MATCH '"land of canaan"' AND docid < 1030000 } 7
+} {
+  foreach s {0 1} {
+    execsql "INSERT INTO t1(t1) VALUES('test-no-incr-doclist=$s')"
+    do_execsql_test 2.$tn.$s $q $res
+    set t($s) [lindex [time [list execsql $q] 100] 0]
+  }
+  if {0} {
+    puts "with optimization: $t(0)    without: $t(1)"
+  }
+}
+
+do_test 2.1 {
+  execsql {
+    CREATE VIRTUAL TABLE t2 USING fts4(order=DESC);
+  }
+  set num [list one two three four five six seven eight nine ten]
+  execsql BEGIN
+  for {set i 0} {$i < 10000} {incr i} {
+    set x "[lindex $num [expr $i%10]] zero"
+    execsql { INSERT INTO t2(docid, content) VALUES($i, $x) }
+  }
+  execsql COMMIT
+  execsql { INSERT INTO t2(t2) VALUES('optimize') }
+} {}
+
+do_execsql_test 2.2 {
+  SELECT count(*) FROM t2 WHERE t2 MATCH '"never zero"'
+} {0}
+
+do_execsql_test 2.3 {
+  SELECT count(*) FROM t2 WHERE t2 MATCH '"two zero"'
+} {1000}
+
+finish_test
diff --git a/test/fts4intck1.test b/test/fts4intck1.test
new file mode 100644
index 0000000000000000000000000000000000000000..6596b2f99726fcf5aa887447d4dc81080221e2aa
--- /dev/null
+++ b/test/fts4intck1.test
@@ -0,0 +1,75 @@
+# 2023-10-23
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+# Test PRAGMA integrity_check against and FTS3/FTS4 table.
+#
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !fts3 { finish_test ; return }
+
+set ::testprefix fts4intck1
+
+proc slang {in} {
+  return [string map {th d e eh} $in]
+}
+
+db function slang -deterministic -innocuous slang
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b TEXT, c TEXT AS (slang(b)));
+  INSERT INTO t1(b) VALUES('the quick fox jumps over the lazy brown dog');
+  SELECT c FROM t1;
+} {{deh quick fox jumps ovehr deh lazy brown dog}}
+
+do_execsql_test 1.1 {
+  CREATE VIRTUAL TABLE t2 USING fts4(content="t1", c);
+  INSERT INTO t2(t2) VALUES('rebuild');
+  SELECT docid FROM t2 WHERE t2 MATCH 'deh';
+} {1}
+
+do_execsql_test 1.2 {
+  PRAGMA integrity_check(t2);
+} {ok}
+
+db close
+sqlite3 db test.db
+do_execsql_test 2.1 {
+  PRAGMA integrity_check(t2);
+} {{unable to validate the inverted index for FTS4 table main.t2: SQL logic error}}
+
+db function slang -deterministic -innocuous slang
+do_execsql_test 2.2 {
+  PRAGMA integrity_check(t2);
+} {ok}
+
+proc slang {in} {return $in}
+do_execsql_test 2.3 {
+  PRAGMA integrity_check(t2);
+} {{malformed inverted index for FTS4 table main.t2}}
+
+#-------------------------------------------------------------------------
+# Test that integrity-check works on a read-only database.
+#
+reset_db
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE x1 USING fts4(a, b);
+  INSERT INTO x1 VALUES('one', 'two');
+  INSERT INTO x1 VALUES('three', 'four');
+}
+db close
+sqlite3 db test.db -readonly 1
+
+do_execsql_test 3.1 {
+  PRAGMA integrity_check;
+} {ok}
+
+
+
+finish_test
diff --git a/test/fts4langid.test b/test/fts4langid.test
new file mode 100644
index 0000000000000000000000000000000000000000..7be594bd5f374733a99cb050bacb8cb08c2028fb
--- /dev/null
+++ b/test/fts4langid.test
@@ -0,0 +1,508 @@
+# 2012 March 01
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the languageid=xxx FTS4 option.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+set ::testprefix fts4langid
+
+#---------------------------------------------------------------------------
+# Test plan:
+#
+#   1.* - Warm-body tests created for specific purposes during development.
+#         Passing these doesn't really prove much.
+#
+#   2.1.* - Test that FTS queries only ever return rows associated with
+#           the requested language.
+#
+#   2.2.* - Same as 2.1.*, after an 'optimize' command.
+#
+#   2.3.* - Same as 2.1.*, after a 'rebuild' command.
+#
+#   3.* - Tests with content= tables. Both where there is a real 
+#         underlying content table and where there is not.
+#
+#   4.* - Test that if one is provided, the tokenizer xLanguage method
+#         is called to configure the tokenizer before tokenizing query
+#         or document text.
+#
+#   5.* - Test the fts4aux table when the associated FTS4 table contains
+#         multiple languages.
+#
+
+do_execsql_test 1.1 {
+  CREATE VIRTUAL TABLE t1 USING fts4(a, b, languageid=lang_id);
+}
+
+do_execsql_test 1.2 {
+  SELECT sql FROM sqlite_master WHERE name = 't1_content';
+} {{CREATE TABLE 't1_content'(docid INTEGER PRIMARY KEY, 'c0a', 'c1b', langid)}}
+
+do_execsql_test 1.3 {SELECT docid FROM t1} {}
+do_execsql_test 1.4 {SELECT lang_id FROM t1} {}
+
+do_execsql_test 1.5 {INSERT INTO t1(a, b) VALUES('aaa', 'bbb')}
+do_execsql_test 1.6 {SELECT lang_id FROM t1 } {0}
+
+do_execsql_test 1.7 {INSERT INTO t1(a, b, lang_id) VALUES('aaa', 'bbb', 4)}
+do_execsql_test 1.8 {SELECT lang_id FROM t1 } {0 4}
+
+do_execsql_test 1.9  {INSERT INTO t1(a, b, lang_id) VALUES('aaa', 'bbb', 'xyz')}
+do_execsql_test 1.10 {SELECT lang_id FROM t1} {0 4 0}
+
+do_execsql_test 1.11 {
+  CREATE VIRTUAL TABLE t2 USING fts4;
+  INSERT INTO t2 VALUES('abc');
+} 
+do_execsql_test 1.12 { SELECT rowid FROM t2 WHERE content MATCH 'abc' } 1
+
+do_execsql_test 1.13 {
+  DROP TABLE t1;
+  CREATE VIRTUAL TABLE t1 USING fts4(languageid=lang_id);
+  INSERT INTO t1(content)          VALUES('a b c');
+  INSERT INTO t1(content, lang_id) VALUES('a b c', 1);
+}
+
+do_execsql_test 1.14 {
+  SELECT rowid FROM t1 WHERE t1 MATCH 'b';
+} {1}
+do_execsql_test 1.15 {
+  SELECT rowid FROM t1 WHERE t1 MATCH 'b' AND lang_id = 0;
+} {1}
+
+do_execsql_test 1.16 {
+  SELECT rowid FROM t1 WHERE t1 MATCH 'b' AND lang_id = 1;
+} {2}
+
+do_catchsql_test 1.17 {
+  INSERT INTO t1(content, lang_id) VALUES('123', -1);
+} {1 {constraint failed}}
+
+do_execsql_test 1.18 {
+  DROP TABLE t1;
+  CREATE VIRTUAL TABLE t1 USING fts4(languageid=lang_id);
+  INSERT INTO t1(content, lang_id) VALUES('A', 13);
+  INSERT INTO t1(content, lang_id) VALUES('B', 13);
+  INSERT INTO t1(content, lang_id) VALUES('C', 13);
+  INSERT INTO t1(content, lang_id) VALUES('D', 13);
+  INSERT INTO t1(content, lang_id) VALUES('E', 13);
+  INSERT INTO t1(content, lang_id) VALUES('F', 13);
+  INSERT INTO t1(content, lang_id) VALUES('G', 13);
+  INSERT INTO t1(content, lang_id) VALUES('H', 13);
+  INSERT INTO t1(content, lang_id) VALUES('I', 13);
+  INSERT INTO t1(content, lang_id) VALUES('J', 13);
+  INSERT INTO t1(content, lang_id) VALUES('K', 13);
+  INSERT INTO t1(content, lang_id) VALUES('L', 13);
+  INSERT INTO t1(content, lang_id) VALUES('M', 13);
+  INSERT INTO t1(content, lang_id) VALUES('N', 13);
+  INSERT INTO t1(content, lang_id) VALUES('O', 13);
+  INSERT INTO t1(content, lang_id) VALUES('P', 13);
+  INSERT INTO t1(content, lang_id) VALUES('Q', 13);
+  INSERT INTO t1(content, lang_id) VALUES('R', 13);
+  INSERT INTO t1(content, lang_id) VALUES('S', 13);
+  SELECT rowid FROM t1 WHERE t1 MATCH 'A';
+} {}
+
+
+#-------------------------------------------------------------------------
+# Test cases 2.*
+#
+proc build_multilingual_db_1 {db} {
+  $db eval { CREATE VIRTUAL TABLE t2 USING fts4(x, y, languageid=l) }
+
+  set xwords [list zero one two three four five six seven eight nine ten]
+  set ywords [list alpha beta gamma delta epsilon zeta eta theta iota kappa]
+
+  for {set i 0} {$i < 1000} {incr i} {
+    set iLangid [expr $i%9]
+    set x ""
+    set y ""
+
+    set x [list]
+    lappend x [lindex $xwords [expr ($i / 1000) % 10]]
+    lappend x [lindex $xwords [expr ($i / 100)  % 10]]
+    lappend x [lindex $xwords [expr ($i / 10)   % 10]]
+    lappend x [lindex $xwords [expr ($i / 1)   % 10]]
+
+    set y [list]
+    lappend y [lindex $ywords [expr ($i / 1000) % 10]]
+    lappend y [lindex $ywords [expr ($i / 100)  % 10]]
+    lappend y [lindex $ywords [expr ($i / 10)   % 10]]
+    lappend y [lindex $ywords [expr ($i / 1)   % 10]]
+
+    $db eval { INSERT INTO t2(docid, x, y, l) VALUES($i, $x, $y, $iLangid) }
+  }
+
+  $db eval {
+    CREATE TABLE data(x, y, l);
+    INSERT INTO data(rowid, x, y, l) SELECT docid, x, y, l FROM t2;
+  }
+}
+
+proc rowid_list_set_langid {langid} {
+  set ::rowid_list_langid $langid
+}
+proc rowid_list {pattern} {
+  set langid $::rowid_list_langid
+  set res [list]
+  db eval {SELECT rowid, x, y FROM data WHERE l = $langid ORDER BY rowid ASC} {
+    if {[string match "*$pattern*" $x] || [string match "*$pattern*" $y]} {
+      lappend res $rowid
+    }
+  }
+  return $res
+}
+
+proc or_merge_list {list1 list2} {
+  set res [list]
+
+  set i1 0
+  set i2 0
+
+  set n1 [llength $list1]
+  set n2 [llength $list2]
+
+  while {$i1 < $n1 && $i2 < $n2} {
+    set e1 [lindex $list1 $i1]
+    set e2 [lindex $list2 $i2]
+
+    if {$e1==$e2} {
+      lappend res $e1
+      incr i1
+      incr i2
+    } elseif {$e1 < $e2} {
+      lappend res $e1
+      incr i1
+    } else {
+      lappend res $e2
+      incr i2
+    }
+  }
+
+  concat $res [lrange $list1 $i1 end] [lrange $list2 $i2 end]
+}
+
+proc or_merge_lists {args} {
+  set res [lindex $args 0]
+  for {set i 1} {$i < [llength $args]} {incr i} {
+    set res [or_merge_list $res [lindex $args $i]]
+  }
+  set res
+}
+
+proc and_merge_list {list1 list2} {
+  foreach i $list2 { set a($i) 1 }
+  set res [list]
+  foreach i $list1 {
+    if {[info exists a($i)]} {lappend res $i}
+  }
+  set res
+}
+
+
+proc and_merge_lists {args} {
+  set res [lindex $args 0]
+  for {set i 1} {$i < [llength $args]} {incr i} {
+    set res [and_merge_list $res [lindex $args $i]]
+  }
+  set res
+}
+
+proc filter_list {list langid} {
+  set res [list]
+  foreach i $list {
+    if {($i % 9) == $langid} {lappend res $i}
+  }
+  set res
+}
+
+do_test 2.0 { 
+  reset_db
+  build_multilingual_db_1 db
+} {}
+
+proc do_test_query1 {tn query res_script} {
+  for {set langid 0} {$langid < 10} {incr langid} {
+    rowid_list_set_langid $langid
+    set res [eval $res_script]
+
+    set actual [
+      execsql {SELECT docid FROM t2 WHERE t2 MATCH $query AND l = $langid}
+    ]
+    do_test $tn.$langid [list set {} $actual] $res
+  }
+}
+
+# Run some queries. 
+do_test_query1 2.1.1  {delta}          { rowid_list delta }
+do_test_query1 2.1.2  {"zero one two"} { rowid_list "zero one two" }
+do_test_query1 2.1.3  {zero one two} {
+  and_merge_lists [rowid_list zero] [rowid_list one] [rowid_list two]
+}
+do_test_query1 2.1.4  {"zero one" OR "one two"} {
+  or_merge_lists [rowid_list "zero one"] [rowid_list "one two"]
+}
+
+# Now try the same tests as above, but after running the 'optimize'
+# command on the FTS table.
+#
+do_execsql_test 2.2 {
+  INSERT INTO t2(t2) VALUES('optimize');
+  SELECT count(*) FROM t2_segdir;
+} {9}
+do_test_query1 2.2.1 {delta}          { rowid_list delta }
+do_test_query1 2.2.2 {"zero one two"} { rowid_list "zero one two" }
+do_test_query1 2.2.3 {zero one two} {
+  and_merge_lists [rowid_list zero] [rowid_list one] [rowid_list two]
+}
+do_test_query1 2.2.4 {"zero one" OR "one two"} {
+  or_merge_lists [rowid_list "zero one"] [rowid_list "one two"]
+}
+
+# And rebuild.
+#
+do_test 2.3 { 
+  reset_db
+  build_multilingual_db_1 db
+  execsql { INSERT INTO t2(t2) VALUES('rebuild') }
+} {}
+do_test_query1 2.3.1 {delta}          { rowid_list delta }
+do_test_query1 2.3.2 {"zero one two"} { rowid_list "zero one two" }
+do_test_query1 2.3.3 {zero one two} {
+  and_merge_lists [rowid_list zero] [rowid_list one] [rowid_list two]
+}
+do_test_query1 2.3.4 {"zero one" OR "one two"} {
+  or_merge_lists [rowid_list "zero one"] [rowid_list "one two"]
+}
+
+#-------------------------------------------------------------------------
+# Test cases 3.*
+#
+do_test 3.0 {
+  reset_db
+  build_multilingual_db_1 db
+  execsql {
+    CREATE TABLE t3_data(l, x, y);
+    INSERT INTO t3_data(rowid, l, x, y) SELECT docid, l, x, y FROM t2;
+    DROP TABLE t2;
+  }
+} {}
+do_execsql_test 3.1 {
+  CREATE VIRTUAL TABLE t2 USING fts4(content=t3_data, languageid=l);
+  INSERT INTO t2(t2) VALUES('rebuild');
+}
+
+do_test_query1 3.1.1 {delta}          { rowid_list delta }
+do_test_query1 3.1.2 {"zero one two"} { rowid_list "zero one two" }
+do_test_query1 3.1.3 {zero one two} {
+  and_merge_lists [rowid_list zero] [rowid_list one] [rowid_list two]
+}
+do_test_query1 3.1.4 {"zero one" OR "one two"} {
+  or_merge_lists [rowid_list "zero one"] [rowid_list "one two"]
+}
+
+do_execsql_test 3.2.1 {
+  DROP TABLE t2;
+  CREATE VIRTUAL TABLE t2 USING fts4(x, y, languageid=l, content=nosuchtable);
+}
+
+do_execsql_test 3.2.2 {
+  INSERT INTO t2(docid, x, y, l) SELECT rowid, x, y, l FROM t3_data;
+}
+
+do_execsql_test 3.2.3 {
+  DROP TABLE t3_data;
+}
+
+do_test_query1 3.3.1 {delta}          { rowid_list delta }
+do_test_query1 3.3.2 {"zero one two"} { rowid_list "zero one two" }
+do_test_query1 3.3.3 {zero one two} {
+  and_merge_lists [rowid_list zero] [rowid_list one] [rowid_list two]
+}
+do_test_query1 3.3.4 {"zero one" OR "one two"} {
+  or_merge_lists [rowid_list "zero one"] [rowid_list "one two"]
+}
+
+do_execsql_test 3.4 {
+  CREATE TABLE t8c(a, b);
+  CREATE VIRTUAL TABLE t8 USING fts4(content=t8c, languageid=langid);
+  INSERT INTO t8(docid, a, b) VALUES(-1, 'one two three', 'x y z');
+  SELECT docid FROM t8 WHERE t8 MATCH 'one x' AND langid=0
+} {-1}
+
+#-------------------------------------------------------------------------
+# Test cases 4.*
+#
+proc build_multilingual_db_2 {db} {
+  $db eval {
+    CREATE VIRTUAL TABLE t4 USING fts4(
+        tokenize=testtokenizer, 
+        languageid=lid
+    );
+  }
+  for {set i 0} {$i < 50} {incr i} {
+    execsql { 
+      INSERT INTO t4(docid, content, lid) VALUES($i, 'The Quick Brown Fox', $i) 
+    }
+  }
+}
+
+do_test 4.1.0 {
+  reset_db
+  set ptr [fts3_test_tokenizer]
+  sqlite3_db_config db SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER 1
+  execsql { SELECT fts3_tokenizer('testtokenizer', $ptr) }
+  build_multilingual_db_2 db
+} {}
+do_execsql_test 4.1.1 {
+  SELECT docid FROM t4 WHERE t4 MATCH 'quick';
+} {0}
+do_execsql_test 4.1.2 {
+  SELECT docid FROM t4 WHERE t4 MATCH 'quick' AND lid=1;
+} {}
+do_execsql_test 4.1.3 {
+  SELECT docid FROM t4 WHERE t4 MATCH 'Quick' AND lid=1;
+} {1}
+for {set i 0} {$i < 50} {incr i} {
+  do_execsql_test 4.1.4.$i {
+    SELECT count(*) FROM t4 WHERE t4 MATCH 'fox' AND lid=$i;
+  } [expr 0==($i%2)]
+}
+do_catchsql_test 4.1.5 {
+  INSERT INTO t4(content, lid) VALUES('hello world', 101)
+} {1 {SQL logic error}}
+
+#-------------------------------------------------------------------------
+# Test cases 5.*
+#
+# The following test cases are designed to detect a 32-bit overflow bug
+# that existed at one point.
+#
+proc build_multilingual_db_3 {db} {
+  $db eval {
+    CREATE VIRTUAL TABLE t5 USING fts4(languageid=lid);
+  }
+  set languages [list 0 1 2 [expr 1<<30]]
+
+  foreach lid $languages {
+    execsql {
+      INSERT INTO t5(docid, content, lid) VALUES(
+          $lid, 'My language is ' || $lid, $lid
+      ) 
+    }
+  }
+}
+
+do_test 5.1.0 {
+  reset_db
+  build_multilingual_db_3 db
+} {}
+
+do_execsql_test 5.1.1 {
+  SELECT level FROM t5_segdir;
+} [list 0 1024 2048 [expr 1<<40]]
+
+do_execsql_test 5.1.2 {SELECT docid FROM t5 WHERE t5 MATCH 'language'} 0
+foreach langid [list 0 1 2 [expr 1<<30]] {
+  do_execsql_test 5.2.$langid { 
+    SELECT docid FROM t5 WHERE t5 MATCH 'language' AND lid = $langid
+  } $langid
+}
+
+set lid [expr 1<<30]
+do_execsql_test 5.3.1 {
+  CREATE VIRTUAL TABLE t6 USING fts4(languageid=lid);
+  INSERT INTO t6 VALUES('I belong to language 0!');
+}
+do_test 5.3.2 {
+  for {set i 0} {$i < 20} {incr i} {
+    execsql {
+      INSERT INTO t6(content, lid) VALUES(
+        'I (row '||$i||') belong to langauge N!', $lid
+      );
+    }
+  }
+  execsql { SELECT docid FROM t6 WHERE t6 MATCH 'belong' }
+} {1}
+
+do_test 5.3.3 {
+  execsql { SELECT docid FROM t6 WHERE t6 MATCH 'belong' AND lid=$lid}
+} {2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21}
+
+do_execsql_test 5.3.4 { INSERT INTO t6(t6) VALUES('optimize') } {}
+do_execsql_test 5.3.5 { SELECT docid FROM t6 WHERE t6 MATCH 'belong' } {1}
+do_execsql_test 5.3.6 { 
+  SELECT docid FROM t6 WHERE t6 MATCH 'belong' AND lid=$lid
+} {2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21}
+
+
+set lid [expr 1<<30]
+foreach lid [list 4 [expr 1<<30]] {
+  do_execsql_test 5.4.$lid.1 {
+    DELETE FROM t6;
+    SELECT count(*) FROM t6_segdir;
+    SELECT count(*) FROM t6_segments;
+  } {0 0}
+  do_execsql_test 5.4.$lid.2 {
+    INSERT INTO t6(content, lid) VALUES('zero zero zero', $lid);
+    INSERT INTO t6(content, lid) VALUES('zero zero one', $lid);
+    INSERT INTO t6(content, lid) VALUES('zero one zero', $lid);
+    INSERT INTO t6(content, lid) VALUES('zero one one', $lid);
+    INSERT INTO t6(content, lid) VALUES('one zero zero', $lid);
+    INSERT INTO t6(content, lid) VALUES('one zero one', $lid);
+    INSERT INTO t6(content, lid) VALUES('one one zero', $lid);
+    INSERT INTO t6(content, lid) VALUES('one one one', $lid);
+
+    SELECT docid FROM t6 WHERE t6 MATCH '"zero zero"' AND lid=$lid;
+  } {1 2 5}
+
+  do_execsql_test 5.4.$lid.3 {
+    SELECT count(*) FROM t6_segdir;
+    SELECT count(*) FROM t6_segments;
+  } {8 0}
+
+  do_execsql_test 5.4.$lid.4 {
+    INSERT INTO t6(t6) VALUES('merge=100,3');
+    INSERT INTO t6(t6) VALUES('merge=100,3');
+    SELECT docid FROM t6 WHERE t6 MATCH '"zero zero"' AND lid=$lid;
+  } {1 2 5}
+
+  do_execsql_test 5.4.$lid.5 {
+    SELECT count(*) FROM t6_segdir;
+    SELECT count(*) FROM t6_segments;
+  } {1 2}
+}
+
+reset_db
+do_execsql_test 6.0 {
+  CREATE VIRTUAL TABLE vt0 USING fts4(c0, languageid="lid");
+  INSERT INTO vt0 VALUES ('a'), ('b');
+  BEGIN;
+    UPDATE vt0 SET lid = 1 WHERE lid=0;
+}
+do_execsql_test 6.1 {
+  INSERT INTO vt0(vt0) VALUES('integrity-check');
+  PRAGMA integrity_check;
+} {ok}
+do_execsql_test 6.2 {
+  COMMIT;
+  INSERT INTO vt0(vt0) VALUES('integrity-check');
+}
+finish_test
diff --git a/test/fts4lastrowid.test b/test/fts4lastrowid.test
new file mode 100644
index 0000000000000000000000000000000000000000..7b35e3c53bb9a0a6d46b7065e649d12d68ebfb94
--- /dev/null
+++ b/test/fts4lastrowid.test
@@ -0,0 +1,72 @@
+# 2017 Feb 27
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests of the last_insert_rowid functionality with fts4.
+#
+
+set testdir [file dirname $argv0]
+source [file join [file dirname [info script]] tester.tcl]
+set testprefix fts4lastrowid
+
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts4(str);
+}
+
+do_execsql_test 1.1 {
+  INSERT INTO t1 VALUES('one string');
+  INSERT INTO t1 VALUES('two string');
+  INSERT INTO t1 VALUES('three string');
+  SELECT last_insert_rowid();
+} {3}
+
+do_execsql_test 1.2 {
+  BEGIN;
+    INSERT INTO t1 VALUES('one string');
+    INSERT INTO t1 VALUES('two string');
+    INSERT INTO t1 VALUES('three string');
+  COMMIT;
+  SELECT last_insert_rowid();
+} {6}
+
+do_execsql_test 1.3 {
+  INSERT INTO t1(rowid, str) VALUES(-22, 'some more text');
+  SELECT last_insert_rowid();
+} {-22}
+
+do_execsql_test 1.4 {
+  BEGIN;
+    INSERT INTO t1(rowid, str) VALUES(45, 'some more text');
+    INSERT INTO t1(rowid, str) VALUES(46, 'some more text');
+    INSERT INTO t1(rowid, str) VALUES(222, 'some more text');
+    SELECT last_insert_rowid();
+  COMMIT;
+  SELECT last_insert_rowid();
+} {222 222}
+
+do_execsql_test 1.5 {
+  CREATE TABLE x1(x);
+  INSERT INTO x1 VALUES('john'), ('paul'), ('george'), ('ringo');
+  INSERT INTO t1 SELECT x FROM x1;
+  SELECT last_insert_rowid();
+} {226}
+
+do_execsql_test 1.6 {
+  INSERT INTO t1(rowid, str) SELECT rowid+10, x FROM x1;
+  SELECT last_insert_rowid();
+} {14}
+
+
+finish_test
diff --git a/test/fts4merge.test b/test/fts4merge.test
new file mode 100644
index 0000000000000000000000000000000000000000..ffef0e9334c81116c9fc92fe63449f035b293303
--- /dev/null
+++ b/test/fts4merge.test
@@ -0,0 +1,347 @@
+# 2012 March 06
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the incremental merge function.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/fts3_common.tcl
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+proc fts3_integrity_check {tbl} {
+  db eval "INSERT INTO $tbl ($tbl) VALUES('integrity-check')"
+  return "ok"
+}
+
+foreach mod {fts3 fts4} {
+  set ::testprefix fts4merge-$mod
+  reset_db
+
+  #-------------------------------------------------------------------------
+  # Test cases 1.*
+  #
+  do_test 1.0 { fts3_build_db_1 -module $mod 1004 } {}
+  do_test 1.1 { fts3_integrity_check t1 } {ok}
+  do_execsql_test 1.1 { 
+    SELECT level, string_agg(idx, ' ') FROM t1_segdir GROUP BY level 
+  } {
+    0 {0 1 2 3 4 5 6 7 8 9 10 11} 
+    1 {0 1 2 3 4 5 6 7 8 9 10 11 12 13}
+    2 {0 1 2}
+  }
+  
+  for {set i 0} {$i<20} {incr i} {
+    do_execsql_test 1.2.$i.1 { INSERT INTO t1(t1) VALUES('merge=1') }
+    do_test 1.2.$i.2 { fts3_integrity_check t1 } ok
+    do_execsql_test 1.2.$i.3 { 
+      SELECT docid FROM t1 WHERE t1 MATCH 'zero one two three'
+    } {123 132 213 231 312 321}
+  }
+  
+  do_execsql_test 1.3 { 
+    SELECT level, group_concat(idx, ' ') FROM t1_segdir GROUP BY level 
+  } {
+    2 {0 1 2 3}
+  }
+  
+  for {set i 0} {$i<100} {incr i} {
+    do_execsql_test 1.4.$i { INSERT INTO t1(t1) VALUES('merge=1,4') }
+    do_test 1.4.$i.2 { fts3_integrity_check t1 } ok
+    do_execsql_test 1.4.$i.3 { 
+      SELECT docid FROM t1 WHERE t1 MATCH 'zero one two three'
+    } {123 132 213 231 312 321}
+  }
+  
+  do_execsql_test 1.5 { 
+    SELECT level, string_agg(idx, ' ') FROM t1_segdir GROUP BY level 
+  } {
+    3 0
+  }
+  
+  #-------------------------------------------------------------------------
+  # Test cases 2.* test that errors in the xxx part of the 'merge=xxx' are
+  # handled correctly.
+  #
+  do_execsql_test 2.0 "CREATE VIRTUAL TABLE t2 USING $mod"
+  
+  foreach {tn arg} {
+    1   {merge=abc}
+    2   {merge=%%%}
+    3   {merge=,}
+    4   {merge=5,}
+    5   {merge=6,%}
+    6   {merge=6,six}
+    7   {merge=6,1}
+  } {
+    do_catchsql_test 2.$tn { 
+      INSERT INTO t2(t2) VALUES($arg);
+    } {1 {SQL logic error}}
+  }
+  
+  #-------------------------------------------------------------------------
+  # Test cases 3.*
+  #
+  do_test 3.0 { 
+    reset_db
+    execsql { PRAGMA page_size = 512 }
+    fts3_build_db_2 -module $mod 30040 
+  } {}
+  do_test 3.1 { fts3_integrity_check t2 } {ok}
+  
+  do_execsql_test 3.2 { 
+    SELECT level, string_agg(idx, ' ') FROM t2_segdir GROUP BY level 
+  } {
+    0 {0 1 2 3 4 5 6} 
+    1 {0 1 2 3 4} 
+    2 {0 1 2 3 4} 
+    3 {0 1 2 3 4 5 6}
+  }
+  
+  do_execsql_test 3.3 { 
+    INSERT INTO t2(t2) VALUES('merge=1000000,2');
+    SELECT level, group_concat(idx, ' ') FROM t2_segdir GROUP BY level 
+  } {
+    4 0
+  }
+  
+  #-------------------------------------------------------------------------
+  # Test cases 4.*
+  #
+  reset_db
+  do_execsql_test 4.1 "
+    PRAGMA page_size = 512;
+    CREATE VIRTUAL TABLE t4 USING $mod;
+    PRAGMA main.page_size;
+  " {512}
+  
+  do_test 4.2 {
+    foreach x {a c b d e f g h i j k l m n o p} {
+      execsql "INSERT INTO t4 VALUES('[string repeat $x 600]')"
+    }
+    execsql {SELECT level, string_agg(idx, ' ') FROM t4_segdir GROUP BY level}
+  } {0 {0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15}}
+  
+  foreach {tn expect} {
+    1  "0 {0 1 2 3 4 5 6 7 8 9 10 11 12 13} 1 0"
+    2  "0 {0 1 2 3 4 5 6 7 8 9 10 11 12}    1 0"
+    3  "0 {0 1 2 3 4 5 6 7 8 9 10 11}       1 0"
+    4  "0 {0 1 2 3 4 5 6 7 8 9 10}          1 0"
+    5  "0 {0 1 2 3 4 5 6 7 8 9}             1 0"
+    6  "0 {0 1 2 3 4 5 6 7 8}               1 0"
+    7  "0 {0 1 2 3 4 5 6 7}                 1 0"
+    8  "0 {0 1 2 3 4 5 6}                   1 0"
+    9  "0 {0 1 2 3 4 5}                     1 0"
+  } {
+    do_execsql_test 4.3.$tn {
+      INSERT INTO t4(t4) VALUES('merge=1,16');
+      SELECT level, group_concat(idx, ' ') FROM t4_segdir GROUP BY level;
+    } $expect
+  }
+  
+  do_execsql_test 4.4.1 {
+    SELECT quote(value) FROM t4_stat WHERE rowid=1
+  } {X'0006'}
+  
+  sqlite3_db_config db DEFENSIVE 0
+  do_execsql_test 4.4.2 {
+    DELETE FROM t4_stat WHERE rowid=1;
+    INSERT INTO t4(t4) VALUES('merge=1,12');
+    SELECT level, string_agg(idx, ' ') FROM t4_segdir GROUP BY level;
+  } "0 {0 1 2 3 4 5}                     1 0"
+  
+  
+  #-------------------------------------------------------------------------
+  # Test cases 5.*
+  #
+  # Test that if a crisis-merge occurs that disrupts an ongoing incremental
+  # merge, the next call to "merge=A,B" identifies this and starts a new
+  # incremental merge. There are two scenarios:
+  #
+  #   * There are less segments on the input level that the disrupted
+  #     incremental merge operated on, or
+  #   
+  #   * Sufficient segments exist on the input level but the segments 
+  #     contain keys smaller than the largest key in the potential output 
+  #     segment.
+  # 
+  do_test 5.1 {
+    reset_db
+    fts3_build_db_1 -module $mod 1000
+  } {}
+  
+  do_execsql_test 5.2 {
+    SELECT level, group_concat(idx, ' ') FROM t1_segdir GROUP BY level;
+  } {
+    0 {0 1 2 3 4 5 6 7} 
+    1 {0 1 2 3 4 5 6 7 8 9 10 11 12 13} 
+    2 {0 1 2}
+  }
+  
+  do_execsql_test 5.3 {
+    INSERT INTO t1(t1) VALUES('merge=1,5');
+    INSERT INTO t1(t1) VALUES('merge=1,5');
+    SELECT level, string_agg(idx, ' ') FROM t1_segdir GROUP BY level;
+  } {
+    1 {0 1 2 3 4 5 6 7 8 9 10 11 12 13 14} 
+    2 {0 1 2 3}
+  }
+  
+  do_execsql_test 5.4 {SELECT quote(value) from t1_stat WHERE rowid=1} {X'010F'}
+  do_test 5.5 {
+    foreach docid [execsql {SELECT docid FROM t1}] {
+      execsql {INSERT INTO t1 SELECT * FROM t1 WHERE docid=$docid}
+    }
+  } {}
+  
+  do_execsql_test 5.6 {SELECT quote(value) from t1_stat WHERE rowid=1} {X'010F'}
+  
+  do_execsql_test 5.7 {
+    SELECT level, group_concat(idx, ' ') FROM t1_segdir GROUP BY level;
+    SELECT quote(value) from t1_stat WHERE rowid=1;
+  } {
+    0 {0 1 2 3 4 5 6 7} 
+    1 {0 1 2 3 4 5 6 7 8 9 10 11 12} 
+    2 {0 1 2 3 4 5 6 7} 
+    X'010F'
+  }
+  
+  do_execsql_test 5.8 {
+    INSERT INTO t1(t1) VALUES('merge=1,6');
+    INSERT INTO t1(t1) VALUES('merge=1,6');
+    SELECT level, group_concat(idx, ' ') FROM t1_segdir GROUP BY level;
+    SELECT quote(value) from t1_stat WHERE rowid=1;
+  } {
+    1 {0 1 2 3 4 5 6 7 8 9 10 11 12 13} 
+    2 {0 1 2 3 4 5 6 7 8} X'010E'
+  }
+  
+  do_test 5.8.1 { fts3_integrity_check t1 } ok
+  
+  do_test 5.9 {
+    set L [expr 16*16*7 + 16*3 + 12]
+    foreach docid [execsql {
+        SELECT docid FROM t1 UNION ALL SELECT docid FROM t1 LIMIT $L
+    }] {
+      execsql {INSERT INTO t1 SELECT * FROM t1 WHERE docid=$docid}
+    }
+  } {}
+  
+  do_execsql_test 5.10 {
+    SELECT level, group_concat(idx, ' ') FROM t1_segdir GROUP BY level;
+    SELECT quote(value) from t1_stat WHERE rowid=1;
+  } {
+    0 {0 1 2 3 4 5 6 7 8 9 10 11} 1 0 2 0 3 0 X'010E'
+  }
+  
+  do_execsql_test 5.11 {
+    INSERT INTO t1(t1) VALUES('merge=1,6');
+    SELECT level, string_agg(idx, ' ') FROM t1_segdir GROUP BY level;
+    SELECT quote(value) from t1_stat WHERE rowid=1;
+  } {
+    1 {0 1} 2 0 3 0 X'010E'
+  }
+  
+  #-------------------------------------------------------------------------
+  # Test cases 6.*
+  #
+  # At one point the following test caused an assert() to fail (because the
+  # second 'merge=1,2' operation below actually "merges" a single input
+  # segment, which was unexpected).
+  #
+  do_test 6.1 {
+    reset_db
+    set a [string repeat a 900]
+    set b [string repeat b 900]
+    set c [string repeat c 900]
+    set d [string repeat d 900]
+
+    execsql "CREATE VIRTUAL TABLE t1 USING $mod"
+    execsql {
+      BEGIN;
+        INSERT INTO t1 VALUES($a);
+        INSERT INTO t1 VALUES($b);
+      COMMIT;
+      BEGIN;
+        INSERT INTO t1 VALUES($c);
+        INSERT INTO t1 VALUES($d);
+      COMMIT;
+    }
+  
+    execsql {
+      INSERT INTO t1(t1) VALUES('merge=1,2');
+      INSERT INTO t1(t1) VALUES('merge=1,2');
+    }
+  } {}
+  
+  #-------------------------------------------------------------------------
+  # Test cases 7.*
+  #
+  # Test that the value returned by sqlite3_total_changes() increases by
+  # 1 following a no-op "merge=A,B", or by more than 1 if actual work is
+  # performed.
+  #
+  do_test 7.0 {
+    reset_db
+    fts3_build_db_1 -module $mod 1000
+  } {}
+  
+  do_execsql_test 7.1 {
+    SELECT level, group_concat(idx, ' ') FROM t1_segdir GROUP BY level
+  } {
+    0 {0 1 2 3 4 5 6 7} 
+    1 {0 1 2 3 4 5 6 7 8 9 10 11 12 13} 
+    2 {0 1 2}
+  }
+  do_test 7.2 {
+    set x [db total_changes]
+    execsql { INSERT INTO t1(t1) VALUES('merge=2,10') }
+    expr { ([db total_changes] - $x)>1 }
+  } {1}
+  do_test 7.3 {
+    set x [db total_changes]
+    execsql { INSERT INTO t1(t1) VALUES('merge=200,10') }
+    expr { ([db total_changes] - $x)>1 }
+  } {1}
+  do_test 7.4 {
+    set x [db total_changes]
+    execsql { INSERT INTO t1(t1) VALUES('merge=200,10') }
+    expr { ([db total_changes] - $x)>1 }
+  } {0}
+  do_test 7.5 {
+    set x [db total_changes]
+    execsql { INSERT INTO t1(t1) VALUES('merge=200,10') }
+    expr { ([db total_changes] - $x)>1 }
+  } {0}
+}
+
+#-------------------------------------------------------------------------
+# Test cases 8.* - ticket [bf1aab89].
+#
+set testprefix fts4merge
+reset_db
+do_execsql_test 8.0 {
+  CREATE VIRTUAL TABLE t1 USING fts4(a, order=DESC);
+  INSERT INTO t1(a) VALUES (0);
+  INSERT INTO t1(a) VALUES (0);
+  UPDATE t1 SET a = NULL;
+} 
+
+do_execsql_test 8.1 {
+  INSERT INTO t1(t1) VALUES('merge=1,4');
+}
+
+finish_test
diff --git a/test/fts4merge2.test b/test/fts4merge2.test
new file mode 100644
index 0000000000000000000000000000000000000000..308b6929fab0338bc2050c26f486023a2483f2aa
--- /dev/null
+++ b/test/fts4merge2.test
@@ -0,0 +1,38 @@
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/fts3_common.tcl
+source $testdir/malloc_common.tcl
+set ::testprefix fts4merge2
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+do_test 1.0 {
+  fts3_build_db_1 1000
+  faultsim_save_and_close
+} {}
+
+do_faultsim_test 1.1 -faults oom-* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { INSERT INTO t1(t1) VALUES('merge=32,4') }
+} -test {
+  faultsim_test_result {0 {}} 
+}
+
+do_faultsim_test 1.2 -faults oom-t* -prep {
+  if {$iFail<100} {set iFail 803}
+  faultsim_restore_and_reopen
+} -body {
+  execsql { INSERT INTO t1(t1) VALUES('merge=1,2') }
+  execsql { INSERT INTO t1(t1) VALUES('merge=1,2') }
+} -test {
+  faultsim_test_result {0 {}} 
+}
+
+finish_test
diff --git a/test/fts4merge3.test b/test/fts4merge3.test
new file mode 100644
index 0000000000000000000000000000000000000000..08b68b97d9653669b0e8a9f9edf40fc0f3f1f5c7
--- /dev/null
+++ b/test/fts4merge3.test
@@ -0,0 +1,105 @@
+# 2012 March 06
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the incremental merge function.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/fts3_common.tcl
+source $testdir/lock_common.tcl
+source $testdir/bc_common.tcl
+
+set ::testprefix fts4merge3
+
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+if {"" == [bc_find_binaries backcompat.test]} {
+  finish_test
+  return
+}
+
+db close
+do_all_bc_test {
+
+  sql2 { PRAGMA page_size = 512 }
+  if { 0==[catch { sql2 { CREATE VIRTUAL TABLE x USING fts4 } } ] } {
+
+    # Build a large database.
+    set msg "this takes around 12 seconds"
+    do_test "1.1 ($msg)" { fts3_build_db_2 20000 } {}
+
+    # Run some queries on it, using the old and new versions.
+    do_test 1.2 { sql1 "SELECT docid FROM t2 WHERE t2 MATCH 'abc'" } {1485}
+    do_test 1.3 { sql2 "SELECT docid FROM t2 WHERE t2 MATCH 'abc'" } {1485}
+
+    do_test 1.4 {
+      set x [sql2 "PRAGMA page_count"]
+      expr {$x>=1284 && $x<=1286}
+    } {1}
+    do_test 1.5 { sql2 { 
+      SELECT level, count(*) FROM t2_segdir GROUP BY level ORDER BY 1
+    } } [list 0 15    1 1     2 14    3 4]
+
+    # Run some incr-merge operations on the db.
+    for {set i 0} {$i<10} {incr i} {
+      do_test 1.6.$i.1 { sql1 { INSERT INTO t2(t2) VALUES('merge=2,2') } } {}
+      do_test 1.6.$i.2 { 
+        sql2 "SELECT docid FROM t2 WHERE t2 MATCH 'abc'" 
+      } {1485}
+    }
+
+    do_test 1.7 { sql2 { 
+      SELECT level, count(*) FROM t2_segdir GROUP BY level ORDER BY 1
+    } } {2 15 3 5}
+
+    # Using the old connection, insert many rows. 
+    do_test 1.8 {
+      for {set i 0} {$i < 1500} {incr i} {
+        sql2 "INSERT INTO t2 SELECT content FROM t2 WHERE docid = $i"
+      }
+    } {}
+
+    do_test 1.9 { sql2 { 
+      SELECT level, count(*) FROM t2_segdir GROUP BY level ORDER BY 1
+    } } [list  0 12  1 13  2 4  3 6]
+
+    # Run a big incr-merge operation on the db.
+    do_test 1.10 { sql1 { INSERT INTO t2(t2) VALUES('merge=2000,2') } } {}
+    do_test 1.11 { 
+      sql2 "SELECT docid FROM t2 WHERE t2 MATCH 'abc'" 
+    } {1485 21485}
+
+    do_test 1.12 {
+      for {set i 0} {$i < 1500} {incr i} {
+        sql2 "INSERT INTO t2 SELECT content FROM t2 WHERE docid = $i"
+      }
+    } {}
+    do_test 1.13 { 
+      sql2 "SELECT docid FROM t2 WHERE t2 MATCH 'abc'" 
+    } {1485 21485 22985}
+
+    do_test 1.14 { 
+      sql2 "INSERT INTO t2(t2) VALUES('optimize')"
+      sql2 "SELECT docid FROM t2 WHERE t2 MATCH 'abc'" 
+    } {1485 21485 22985}
+
+    do_test 1.15 { sql2 { 
+      SELECT level, count(*) FROM t2_segdir GROUP BY level ORDER BY 1
+    } } {4 1}
+  }
+}
+
+
+finish_test
diff --git a/test/fts4merge4.test b/test/fts4merge4.test
new file mode 100644
index 0000000000000000000000000000000000000000..12328c23df6b1bb96e96c5c15b5b18a5330d1474
--- /dev/null
+++ b/test/fts4merge4.test
@@ -0,0 +1,102 @@
+# 2013 May 29
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/fts3_common.tcl
+set ::testprefix fts4merge4
+
+ifcapable !fts3||!shared_cache {
+  finish_test
+  return
+}
+
+set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
+
+do_execsql_test 1.1 { CREATE VIRTUAL TABLE t1 USING fts4 }
+
+do_test 1.2 {
+  for {set i 0} {$i < 2000} {incr i} {
+    execsql {INSERT INTO t1 VALUES('a b c d e f g h i j k l');}
+  }
+} {}
+
+do_test 1.3 {
+  execsql BEGIN
+  for {set i 0} {$i < 2000} {incr i} {
+    execsql {INSERT INTO t1 VALUES('a b c d e f g h i j k l');}
+  }
+  execsql {
+    INSERT INTO t1(t1) VALUES('merge=8,50');
+    COMMIT
+  }
+} {}
+
+reset_db
+do_execsql_test 2.0 { CREATE VIRTUAL TABLE t1 USING fts4 }
+do_test 2.1 {
+  for {set i 0} {$i < 2000} {incr i} {
+    execsql {INSERT INTO t1 VALUES('a b c d e f g h i j k l');}
+  }
+} {}
+do_execsql_test 2.2 { SELECT count(*) FROM t1_segdir; } 35
+do_execsql_test 2.3 { INSERT INTO t1(t1) VALUES('optimize') } {}
+do_execsql_test 2.4 { SELECT count(*) FROM t1_segdir; } 1
+
+#-------------------------------------------------------------------------
+# Now test that the automerge=? option appears to work.
+#
+do_execsql_test 2.1 { CREATE VIRTUAL TABLE t2 USING fts4; }
+
+set doc ""
+foreach c1 "a b c d e f g h i j" {
+  foreach c2 "a b c d e f g h i j" {
+    foreach c3 "a b c d e f g h i j" {
+      lappend doc "$c1$c2$c3"
+    }
+  }
+}
+set doc [string repeat $doc 10]
+
+foreach {tn am expected} {
+  1 {automerge=2} {1 1   2 1   4 1   6 1}
+  2 {automerge=4} {1 2   2 1   3 1}
+  3 {automerge=8} {0 4   1 3   2 1}
+  4 {automerge=1} {0 4   1 3   2 1}
+} {
+  foreach {tn2 openclose} {1 {} 2 { db close ; sqlite3 db test.db }} {
+    do_test 2.2.$tn.$tn2 {
+      execsql { DELETE FROM t2 }
+      execsql { INSERT INTO t2(t2) VALUES($am) };
+
+      eval $openclose
+  
+      for {set i 0} {$i < 100} {incr i} {
+        execsql { 
+          BEGIN;
+            INSERT INTO t2 VALUES($doc);
+            INSERT INTO t2 VALUES($doc);
+            INSERT INTO t2 VALUES($doc);
+            INSERT INTO t2 VALUES($doc);
+            INSERT INTO t2 VALUES($doc);
+          COMMIT;
+        }
+      }
+  
+      execsql { SELECT level, count(*) FROM t2_segdir GROUP BY level }
+    } [list {*}$expected]
+  }
+}
+
+sqlite3_enable_shared_cache $::enable_shared_cache
+finish_test
diff --git a/test/fts4merge5.test b/test/fts4merge5.test
new file mode 100644
index 0000000000000000000000000000000000000000..1fad778b95e742c10730cefb9ce577eb23190629
--- /dev/null
+++ b/test/fts4merge5.test
@@ -0,0 +1,58 @@
+# 2019 October 02
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS4 module.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix fts4merge5
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+source $testdir/genesis.tcl
+
+do_execsql_test 1.1 { 
+  CREATE TABLE t1(docid, words);
+}
+fts_kjv_genesis
+
+do_execsql_test 1.2 {
+  CREATE VIRTUAL TABLE x1 USING fts3; 
+  INSERT INTO x1(x1) VALUES('nodesize=64');
+  INSERT INTO x1(x1) VALUES('maxpending=64');
+}
+
+do_execsql_test 1.3 {
+  INSERT INTO x1(docid, content) SELECT * FROM t1;
+}
+
+for {set tn 1} {1} {incr tn} {
+  set tc1 [db total_changes]
+  do_execsql_test 1.4.$tn.1 {
+    INSERT INTO x1(x1) VALUES('merge=1,2');
+  }
+  set tc2 [db total_changes]
+
+  if {($tc2 - $tc1)<2} break
+
+  do_execsql_test 1.4.$tn.1 {
+    INSERT INTO x1(x1) VALUES('integrity-check');
+  }
+}
+
+
+
+finish_test
diff --git a/test/fts4min.test b/test/fts4min.test
new file mode 100644
index 0000000000000000000000000000000000000000..ca63b3961716c7fa97cfda72d819b9af55ebbeeb
--- /dev/null
+++ b/test/fts4min.test
@@ -0,0 +1,53 @@
+# 2020 February 27
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/fts3_common.tcl
+set ::testprefix fts4min
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+#------------------------------------------------------------------
+do_execsql_test 0.0 {
+  CREATE TABLE t1(a NOT NULL, b);
+  CREATE INDEX i1 ON t1(a);
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE ft USING fts3(c);
+  INSERT INTO ft(docid, c) VALUES(22, 'hello world');
+  INSERT INTO ft(docid, c) VALUES(44, 'hello world');
+  INSERT INTO ft(docid, c) VALUES(11, 'hello world');
+}
+
+do_eqp_test 1.1.1 {
+  SELECT max(rowid) FROM ft
+} {VIRTUAL TABLE INDEX 0:DESC}
+
+do_eqp_test 1.1.2 {
+  SELECT min(rowid) FROM ft
+} {VIRTUAL TABLE INDEX 0:ASC}
+
+do_execsql_test 1.2.1 {
+  SELECT max(rowid) FROM ft
+} {44}
+
+do_execsql_test 1.2.2 {
+  SELECT min(rowid) FROM ft
+} {11}
+
+finish_test
diff --git a/test/fts4noti.test b/test/fts4noti.test
new file mode 100644
index 0000000000000000000000000000000000000000..87a05714bfce2c10cf80741a5cb35416573fc6e3
--- /dev/null
+++ b/test/fts4noti.test
@@ -0,0 +1,230 @@
+# 2013 June 21
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the notindexed=xxx FTS4 option.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix fts4noti
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+
+#-------------------------------------------------------------------------
+# Test that typos in "notindexed=" column names are detected.
+#
+do_execsql_test 1.0 {
+  CREATE TABLE cc(a, b, c);
+}
+foreach {tn arg res} {
+  1 "(b, c, notindexed=a)"                  {1 {no such column: a}}
+  2 "(a, b, notindexed=a)"                                   {0 {}}
+  3 "(a, b, notindexed=a, notindexed=a)"                     {0 {}}
+  4 "(notindexed=a, a, b)"                                   {0 {}}
+  5 "(notindexed=a, notindexed=b, notindexed=c, a, b, c, d)" {0 {}}
+  6 "(notindexed=a, notindexed=B, notindexed=c, a, b, c, d)" {0 {}}
+  7 "(notindexed=a, notindexed=b, notindexed=c, a, B, c, d)" {0 {}}
+  8 "(notindexed=d, content=cc)" {1 {no such column: d}}
+  9 "(notindexed=a, content=cc)" {0 {}}
+  10 "(notindexed=a, notindexed=b, a)" {1 {no such column: b}}
+  11 "(notindexed=a, notindexed=b, b)" {1 {no such column: a}}
+} {
+  do_catchsql_test 1.$tn "CREATE VIRTUAL TABLE t1 USING fts4 $arg" $res
+  if {[lindex $res 0]==0} { execsql "DROP TABLE t1" }
+}
+
+do_execsql_test 1.x { SELECT name FROM sqlite_master } {cc}
+
+
+#-------------------------------------------------------------------------
+# Test that notindexed columns are not indexed.
+#
+foreach {tn schema} {
+  1 { 
+    CREATE VIRTUAL TABLE t1 USING fts4(a, b, c, notindexed=b); 
+  }
+  2 { 
+    CREATE TABLE c1(a, b, c);
+    INSERT INTO c1 VALUES('one two', 'three four', 'five six');
+    INSERT INTO c1 VALUES('three four', 'five six', 'one two');
+    CREATE VIRTUAL TABLE t1 USING fts4(content=c1, notindexed=b); 
+  }
+  3 { 
+    CREATE VIRTUAL TABLE t1 USING fts4(content="", a, b, c, notindexed=b); 
+  }
+} {
+  execsql $schema
+
+  do_execsql_test 2.$tn.1 {
+    INSERT INTO t1(docid,a,b,c) VALUES(1, 'one two', 'three four', 'five six');
+    INSERT INTO t1(docid,a,b,c) VALUES(2, 'three four', 'five six', 'one two');
+  }
+
+  do_execsql_test 2.$tn.2 { SELECT docid FROM t1 WHERE t1 MATCH 'one' } {1 2}
+  do_execsql_test 2.$tn.3 { SELECT docid FROM t1 WHERE t1 MATCH 'three' } {2}
+  do_execsql_test 2.$tn.4 { SELECT docid FROM t1 WHERE t1 MATCH 'five' } {1}
+
+  do_execsql_test 2.$tn.5 { INSERT INTO t1(t1) VALUES('optimize') }
+
+  do_execsql_test 2.$tn.6 { SELECT docid FROM t1 WHERE t1 MATCH 'one' } {1 2}
+  do_execsql_test 2.$tn.7 { SELECT docid FROM t1 WHERE t1 MATCH 'three' } {2}
+  do_execsql_test 2.$tn.8 { SELECT docid FROM t1 WHERE t1 MATCH 'five' } {1}
+
+  if {$tn!=3} {
+    do_execsql_test 2.$tn.9 { INSERT INTO t1(t1) VALUES('rebuild') }
+  
+    do_execsql_test 2.$tn.10 { SELECT docid FROM t1 WHERE t1 MATCH 'one' } {1 2}
+    do_execsql_test 2.$tn.11 { SELECT docid FROM t1 WHERE t1 MATCH 'three' } {2}
+    do_execsql_test 2.$tn.12 { SELECT docid FROM t1 WHERE t1 MATCH 'five' } {1}
+  
+    do_execsql_test 2.$tn.13 { 
+      SELECT a,b,c FROM t1 WHERE docid=1
+    } {{one two} {three four} {five six}}
+    do_execsql_test 2.$tn.14 { 
+      SELECT a,b,c FROM t1 WHERE docid=2
+    } {{three four} {five six} {one two}}
+  }
+
+  do_execsql_test 2.x { DROP TABLE t1 }
+}
+
+#-------------------------------------------------------------------------
+# Test that notindexed columns are not scanned for deferred tokens.
+#
+
+do_execsql_test 3.1 {
+  CREATE VIRTUAL TABLE t2 USING fts4(x, y, notindexed=x);
+}
+do_test 3.2 {
+  set v [string repeat " 1" 50000]
+  set v1 "x $v"
+  set v2 "y $v"
+  execsql { 
+    INSERT INTO t2 VALUES(1, 'x y z');
+    INSERT INTO t2 VALUES(2, $v1);
+    INSERT INTO t2 VALUES(3, $v2);
+    INSERT INTO t2 VALUES(4, $v2);
+    INSERT INTO t2 VALUES(5, $v2);
+    INSERT INTO t2 VALUES(6, $v2);
+  }
+} {}
+
+do_execsql_test 3.3 { SELECT x FROM t2 WHERE t2 MATCH '2' } {}
+do_execsql_test 3.4 { SELECT x FROM t2 WHERE t2 MATCH '1' } {2 3 4 5 6}
+do_execsql_test 3.5 { SELECT x FROM t2 WHERE t2 MATCH 'x' } {1 2}
+do_execsql_test 3.6 { SELECT x FROM t2 WHERE t2 MATCH 'x 1' } {2}
+
+do_execsql_test 3.x { DROP TABLE t2 }
+  
+#-------------------------------------------------------------------------
+# Test that the types of notindexed columns are not modified.
+#
+do_execsql_test 4.1 {
+  CREATE VIRTUAL TABLE t2 USING fts4(poi, addr, notindexed=poi);
+  INSERT INTO t2 VALUES(114, 'x x x');
+  INSERT INTO t2 VALUES(X'1234', 'y y y');
+  INSERT INTO t2 VALUES(NULL, 'z z z');
+  INSERT INTO t2 VALUES(113.2, 'w w w');
+  INSERT INTO t2 VALUES('poi', 'v v v');
+}
+do_execsql_test 4.2 { SELECT typeof(poi) FROM t2 WHERE t2 MATCH 'x' } {integer}
+do_execsql_test 4.3 { SELECT typeof(poi) FROM t2 WHERE t2 MATCH 'y' } {blob}
+do_execsql_test 4.4 { SELECT typeof(poi) FROM t2 WHERE t2 MATCH 'z' } {null}
+do_execsql_test 4.5 { SELECT typeof(poi) FROM t2 WHERE t2 MATCH 'w' } {real}
+do_execsql_test 4.6 { SELECT typeof(poi) FROM t2 WHERE t2 MATCH 'v' } {text}
+
+do_execsql_test 4.x { DROP TABLE t2 }
+
+#-------------------------------------------------------------------------
+# Test that multiple notindexed options on a single table work as expected.
+#
+do_execsql_test 5.1 {
+  CREATE VIRTUAL TABLE t2 USING fts4(
+      notindexed="three", one, two, three, notindexed="one",
+  );
+  INSERT INTO t2 VALUES('a', 'b', 'c');
+  INSERT INTO t2 VALUES('c', 'a', 'b');
+  INSERT INTO t2 VALUES('b', 'c', 'a');
+}
+do_execsql_test 5.2 { SELECT docid FROM t2 WHERE t2 MATCH 'a' } {2}
+do_execsql_test 5.3 { SELECT docid FROM t2 WHERE t2 MATCH 'b' } {1}
+do_execsql_test 5.4 { SELECT docid FROM t2 WHERE t2 MATCH 'c' } {3}
+
+do_execsql_test 5.x { DROP TABLE t2 }
+
+#-------------------------------------------------------------------------
+# Check that if an indexed column name is a prefix of a notindexed column
+# name, the column is still correctly tokenized. This was a problem at one
+# point.
+do_execsql_test 6.1.1 {
+  CREATE VIRTUAL TABLE t1 USING fts4(
+    poiCategory, poiCategoryId, notindexed=poiCategoryId
+  );
+  INSERT INTO t1(poiCategory, poiCategoryId) values ('Restaurant', 6021);
+}
+
+do_execsql_test 6.1.2 {
+  SELECT * FROM t1 WHERE t1 MATCH 'restaurant';
+} { Restaurant 6021 }
+do_execsql_test 6.1.3 {
+  SELECT * FROM t1 WHERE t1 MATCH 're*';
+} { Restaurant 6021 }
+do_execsql_test 6.1.4 {
+  SELECT * FROM t1 WHERE t1 MATCH '6021';
+} {}
+do_execsql_test 6.1.5 {
+  SELECT * FROM t1 WHERE t1 MATCH '60*';
+} {}
+
+do_execsql_test 6.2.1 {
+  DROP TABLE t1;
+  CREATE VIRTUAL TABLE t1 USING fts4(
+    poiCategory, poiCategoryId, notindexed=poiCategory
+  );
+  INSERT INTO t1(poiCategory, poiCategoryId) values ('Restaurant', 6021);
+}
+
+do_execsql_test 6.2.2 {
+  SELECT * FROM t1 WHERE t1 MATCH 'restaurant';
+} {}
+do_execsql_test 6.2.3 {
+  SELECT * FROM t1 WHERE t1 MATCH 're*';
+} {}
+do_execsql_test 6.2.4 {
+  SELECT * FROM t1 WHERE t1 MATCH '6021';
+} { Restaurant 6021 }
+do_execsql_test 6.2.5 {
+  SELECT * FROM t1 WHERE t1 MATCH '60*';
+} { Restaurant 6021 }
+
+do_execsql_test 6.3.1 {
+  DROP TABLE t1;
+  CREATE VIRTUAL TABLE t1 USING fts4(abc, ab, a, notindexed=abc);
+  CREATE VIRTUAL TABLE t2 USING fts4(a, ab, abc, notindexed=abc);
+
+  INSERT INTO t1 VALUES('no', 'yes', 'yep');
+  INSERT INTO t2 VALUES('yep', 'yes', 'no');
+
+  SELECT count(*) FROM t1 WHERE t1 MATCH 'no';
+  SELECT count(*) FROM t1 WHERE t1 MATCH 'yes';
+  SELECT count(*) FROM t1 WHERE t1 MATCH 'yep';
+
+  SELECT count(*) FROM t2 WHERE t2 MATCH 'no';
+  SELECT count(*) FROM t2 WHERE t2 MATCH 'yes';
+  SELECT count(*) FROM t2 WHERE t2 MATCH 'yep';
+} {0 1 1 0 1 1}
+
+finish_test
diff --git a/test/fts4onepass.test b/test/fts4onepass.test
new file mode 100644
index 0000000000000000000000000000000000000000..344be4b1df1ffc952437ac7f08b7eff33b4059b8
--- /dev/null
+++ b/test/fts4onepass.test
@@ -0,0 +1,160 @@
+# 2015 Sep 27
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/fts3_common.tcl
+set ::testprefix fts4onepass
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE ft USING fts3;
+  INSERT INTO ft(rowid, content) VALUES(1, '1 2 3');
+  INSERT INTO ft(rowid, content) VALUES(2, '4 5 6');
+  INSERT INTO ft(rowid, content) VALUES(3, '7 8 9');
+}
+
+#-------------------------------------------------------------------------
+# Check that UPDATE and DELETE statements that feature "WHERE rowid=?" or 
+# or "WHERE docid=?" clauses do not use statement journals. But that other
+# DELETE and UPDATE statements do.
+#
+# Note: "MATCH ? AND docid=?" does use a statement journal.
+#
+foreach {tn sql uses} {
+  1.1 { DELETE FROM ft } 1
+  1.2 { DELETE FROM ft WHERE docid=? } 0
+  1.3 { DELETE FROM ft WHERE rowid=? } 0
+  1.4 { DELETE FROM ft WHERE ft MATCH '1' } 1
+  1.5 { DELETE FROM ft WHERE ft MATCH '1' AND docid=? } 1
+  1.6 { DELETE FROM ft WHERE ft MATCH '1' AND rowid=? } 1
+
+  2.1 { UPDATE ft SET content='a b c' } 1
+  2.2 { UPDATE ft SET content='a b c' WHERE docid=? } 0
+  2.3 { UPDATE ft SET content='a b c' WHERE rowid=? } 0
+  2.4 { UPDATE ft SET content='a b c' WHERE ft MATCH '1' } 1
+  2.5 { UPDATE ft SET content='a b c' WHERE ft MATCH '1' AND docid=? } 1
+  2.6 { UPDATE ft SET content='a b c' WHERE ft MATCH '1' AND rowid=? } 1
+} {
+  do_test 1.$tn { sql_uses_stmt db $sql } $uses
+}
+
+#-------------------------------------------------------------------------
+# Check that putting a "DELETE/UPDATE ... WHERE rowid=?" statement in a
+# trigger program does not prevent the VM from using a statement 
+# transaction. Even if the calling statement cannot hit a constraint.
+#
+do_execsql_test 2.0 {
+  CREATE TABLE t1(x);
+
+  CREATE TRIGGER t1_ai AFTER INSERT ON t1 BEGIN
+    DELETE FROM ft WHERE rowid=new.x;
+  END;
+
+  CREATE TRIGGER t1_ad AFTER DELETE ON t1 BEGIN
+    UPDATE ft SET content = 'a b c' WHERE rowid=old.x;
+  END;
+
+  CREATE TRIGGER t1_bu BEFORE UPDATE ON t1 BEGIN
+    DELETE FROM ft WHERE rowid=old.x;
+  END;
+}
+
+foreach {tn sql uses} {
+  1 { INSERT INTO t1 VALUES(1)      } 1
+  2 { DELETE FROM t1 WHERE x=4      } 1
+  3 { UPDATE t1 SET x=10 WHERE x=11 } 1
+} {
+  do_test 2.$tn { sql_uses_stmt db $sql } $uses
+}
+
+#-------------------------------------------------------------------------
+# Test that an "UPDATE ... WHERE rowid=?" works and does not corrupt the
+# index when it strikes a constraint. Both inside and outside a 
+# transaction.
+#
+foreach {tn tcl1 tcl2}  {
+  1 {} {}
+
+  2 {
+    execsql BEGIN
+  } {
+    if {[sqlite3_get_autocommit db]==1} { error "transaction rolled back!" }
+    execsql COMMIT
+  }
+} {
+
+  do_execsql_test 3.$tn.0 {
+    DROP TABLE IF EXISTS ft2;
+    CREATE VIRTUAL TABLE ft2 USING fts4;
+    INSERT INTO ft2(rowid, content) VALUES(1, 'a b c');
+    INSERT INTO ft2(rowid, content) VALUES(2, 'a b d');
+    INSERT INTO ft2(rowid, content) VALUES(3, 'a b e');
+  }
+
+  eval $tcl1
+  foreach {tn2 sql content} {
+    1 { UPDATE ft2 SET docid=2 WHERE docid=1 }
+      { 1 {a b c} 2 {a b d} 3 {a b e} }
+
+    2 { 
+      INSERT INTO ft2(rowid, content) VALUES(4, 'a b f');
+      UPDATE ft2 SET docid=5 WHERE docid=4;
+      UPDATE ft2 SET docid=3 WHERE docid=5;
+    } { 1 {a b c} 2 {a b d} 3 {a b e} 5 {a b f} }
+
+    3 {
+      UPDATE ft2 SET docid=3 WHERE docid=4;           -- matches 0 rows
+      UPDATE ft2 SET docid=2 WHERE docid=3;
+    } { 1 {a b c} 2 {a b d} 3 {a b e} 5 {a b f} }
+
+    4 {
+      INSERT INTO ft2(rowid, content) VALUES(4, 'a b g');
+      UPDATE ft2 SET docid=-1 WHERE docid=4;
+      UPDATE ft2 SET docid=3 WHERE docid=-1;
+    } {-1 {a b g} 1 {a b c} 2 {a b d} 3 {a b e} 5 {a b f} }
+
+    5 {
+      DELETE FROM ft2 WHERE rowid=451;
+      DELETE FROM ft2 WHERE rowid=-1;
+      UPDATE ft2 SET docid = 2 WHERE docid = 1;
+    } {1 {a b c} 2 {a b d} 3 {a b e} 5 {a b f} }
+  } {
+    do_catchsql_test 3.$tn.$tn2.a $sql {1 {constraint failed}}
+    do_execsql_test  3.$tn.$tn2.b { SELECT rowid, content FROM ft2 } $content
+    do_execsql_test  3.$tn.$tn2.c { 
+      INSERT INTO ft2(ft2) VALUES('integrity-check');
+    }
+  }
+  eval $tcl2
+}
+
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE zt USING fts4(a, b);
+  INSERT INTO zt(rowid, a, b) VALUES(1, 'unus duo', NULL);
+  INSERT INTO zt(rowid, a, b) VALUES(2, NULL, NULL);
+
+  BEGIN;
+    UPDATE zt SET b='septum' WHERE rowid = 1;
+    UPDATE zt SET b='octo' WHERE rowid = 1;
+  COMMIT;
+
+  SELECT count(*) FROM zt_segdir;
+} {3}
+
+
+finish_test
diff --git a/test/fts4opt.test b/test/fts4opt.test
new file mode 100644
index 0000000000000000000000000000000000000000..4b3d003239971c511fc7bb40dc4ec25c9a644aa5
--- /dev/null
+++ b/test/fts4opt.test
@@ -0,0 +1,214 @@
+# 2016 March 8
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/fts3_common.tcl
+set ::testprefix fts4opt
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+# Create the fts_kjv_genesis procedure which fills and FTS3/4 table 
+# with the complete text of the Book of Genesis.
+#
+source $testdir/genesis.tcl
+
+do_execsql_test 1.0 { CREATE TABLE t1(docid, words) }
+fts_kjv_genesis
+
+#-------------------------------------------------------------------------
+# Argument $db is an open database handle. $tbl is the name of an FTS3/4
+# table with the database. This command rearranges the contents of the
+# %_segdir table so that all segments within each index are on the same
+# level. This means that the 'merge' command can then be used for an
+# incremental optimize routine.
+#
+proc prepare_for_optimize {db tbl} {
+  sqlite3_db_config $db DEFENSIVE 0
+  $db eval [string map [list % $tbl] {
+    BEGIN;
+      CREATE TEMP TABLE tmp_segdir(
+        level, idx, start_block, leaves_end_block, end_block, root
+      );
+
+      INSERT INTO temp.tmp_segdir 
+        SELECT 
+        1024*(o.level / 1024) + 32,                                -- level
+        sum(o.level<i.level OR (o.level=i.level AND o.idx>i.idx)), -- idx
+        o.start_block, o.leaves_end_block, o.end_block, o.root     -- other
+        FROM %_segdir o, %_segdir i 
+        WHERE (o.level / 1024) = (i.level / 1024)
+        GROUP BY o.level, o.idx;
+  
+      DELETE FROM %_segdir;
+      INSERT INTO %_segdir SELECT * FROM temp.tmp_segdir;
+      DROP TABLE temp.tmp_segdir;
+  
+    COMMIT;
+  }]
+}
+
+do_test 1.1 {
+  execsql { CREATE VIRTUAL TABLE t2 USING fts4(words, prefix="1,2,3") }
+  foreach {docid words} [db eval { SELECT * FROM t1 }] {
+    execsql { INSERT INTO t2(docid, words) VALUES($docid, $words) }
+  }
+} {}
+
+do_execsql_test 1.2 {
+  SELECT level, count(*) FROM t2_segdir GROUP BY level
+} {
+  0    13    1 15    2 5 
+  1024 13 1025 15 1026 5 
+  2048 13 2049 15 2050 5 
+  3072 13 3073 15 3074 5
+}
+
+do_execsql_test 1.3 { INSERT INTO t2(t2) VALUES('integrity-check') }
+prepare_for_optimize db t2
+do_execsql_test 1.4 { INSERT INTO t2(t2) VALUES('integrity-check') }
+
+do_execsql_test 1.5 {
+  SELECT level, count(*) FROM t2_segdir GROUP BY level
+} {
+  32   33 
+  1056 33 
+  2080 33 
+  3104 33
+}
+
+do_test 1.6 {
+  while 1 {
+    set tc1 [db total_changes]
+    execsql { INSERT INTO t2(t2) VALUES('merge=5,2') }
+    set tc2 [db total_changes]
+    if {($tc2 - $tc1) < 2} break
+  }
+  execsql { SELECT level, count(*) FROM t2_segdir GROUP BY level }
+} {33 1 1057 1 2081 1 3105 1}
+do_execsql_test 1.7 { INSERT INTO t2(t2) VALUES('integrity-check') }
+
+do_execsql_test 1.8 {
+  INSERT INTO t2(words) SELECT words FROM t1;
+  SELECT level, count(*) FROM t2_segdir GROUP BY level;
+} {0 2 1024 2 2048 2 3072 2}
+
+#-------------------------------------------------------------------------
+
+do_execsql_test 2.0 {
+  DELETE FROM t2;
+}
+do_test 2.1 {
+  foreach {docid words} [db eval { SELECT * FROM t1 }] {
+    execsql { INSERT INTO t2(docid, words) VALUES($docid, $words) }
+  }
+
+  set i 0
+  foreach {docid words} [db eval { SELECT * FROM t1 }] {
+    if {[incr i] % 2} { execsql { DELETE FROM t2 WHERE docid = $docid } }
+  }
+
+  set i 0
+  foreach {docid words} [db eval { SELECT * FROM t1 }] {
+    if {[incr i] % 3} {
+      execsql { INSERT OR REPLACE INTO t2(docid, words) VALUES($docid, $words) }
+    }
+  }
+} {}
+
+do_execsql_test 2.2 {
+  SELECT level, count(*) FROM t2_segdir GROUP BY level
+} {
+  0    10    1 15    2 12 
+  1024 10 1025 15 1026 12 
+  2048 10 2049 15 2050 12 
+  3072 10 3073 15 3074 12
+}
+
+do_execsql_test 2.3 { INSERT INTO t2(t2) VALUES('integrity-check') }
+prepare_for_optimize db t2
+do_execsql_test 2.4 { INSERT INTO t2(t2) VALUES('integrity-check') }
+
+do_execsql_test 2.5 {
+  SELECT level, count(*) FROM t2_segdir GROUP BY level
+} {
+    32 37 
+  1056 37 
+  2080 37 
+  3104 37
+}
+
+do_test 2.6 {
+  while 1 {
+    set tc1 [db total_changes]
+    execsql { INSERT INTO t2(t2) VALUES('merge=5,2') }
+    set tc2 [db total_changes]
+    if {($tc2 - $tc1) < 2} break
+  }
+  execsql { SELECT level, count(*) FROM t2_segdir GROUP BY level }
+} {33 1 1057 1 2081 1 3105 1}
+do_execsql_test 2.7 { INSERT INTO t2(t2) VALUES('integrity-check') }
+
+do_execsql_test 2.8 {
+  INSERT INTO t2(words) SELECT words FROM t1;
+  SELECT level, count(*) FROM t2_segdir GROUP BY level;
+} {0 2 1024 2 2048 2 3072 2}
+
+#-------------------------------------------------------------------------
+# Check that 'optimize' works when there is data in the in-memory hash
+# table, but no segments at all on disk.
+#
+do_execsql_test 3.1 {
+  CREATE VIRTUAL TABLE fts USING fts4 (t);
+  INSERT INTO fts (fts) VALUES ('optimize');
+}
+do_execsql_test 3.2 {
+  INSERT INTO fts(fts) VALUES('integrity-check');
+  SELECT count(*) FROM fts_segdir;
+} {0}
+do_execsql_test 3.3 {
+  BEGIN;
+  INSERT INTO fts (rowid, t) VALUES (2, 'test');
+  INSERT INTO fts (fts) VALUES ('optimize');
+  COMMIT;
+  SELECT level, idx FROM fts_segdir;
+} {0 0}
+do_execsql_test 3.4 {
+  INSERT INTO fts(fts) VALUES('integrity-check');
+  SELECT rowid FROM fts WHERE fts MATCH 'test';
+} {2}
+do_execsql_test 3.5 {
+  INSERT INTO fts (fts) VALUES ('optimize');
+  INSERT INTO fts(fts) VALUES('integrity-check');
+}
+do_test 3.6 {
+  set c1 [db total_changes]
+  execsql { INSERT INTO fts (fts) VALUES ('optimize') }
+  expr {[db total_changes] - $c1}
+} {1}
+do_test 3.7 {
+  execsql { INSERT INTO fts (rowid, t) VALUES (3, 'xyz') }
+  set c1 [db total_changes]
+  execsql { INSERT INTO fts (fts) VALUES ('optimize') }
+  expr {([db total_changes] - $c1) > 1}
+} {1}
+do_test 3.8 {
+  set c1 [db total_changes]
+  execsql { INSERT INTO fts (fts) VALUES ('optimize') }
+  expr {[db total_changes] - $c1}
+} {1}
+
+finish_test
diff --git a/test/fts4record.test b/test/fts4record.test
new file mode 100644
index 0000000000000000000000000000000000000000..f1a3eafa75db5ede51868922154298a2a2fb90a2
--- /dev/null
+++ b/test/fts4record.test
@@ -0,0 +1,120 @@
+# 2019 September 18
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS4 module.
+#
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/fts3_common.tcl
+set testprefix fts4record
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+sqlite3_fts3_may_be_corrupt 1
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts4(x);
+  INSERT INTO t1 VALUES('terma terma terma termb');
+}
+
+do_execsql_test 1.1 {
+  SELECT quote(root) FROM t1_segdir
+} {
+  X'00057465726D6105010203030004016203010500'
+}
+
+proc make_record_wrapper {args} { make_fts3record $args }
+db func record make_record_wrapper
+
+do_execsql_test 1.2 {
+  select quote( 
+    record(0,    5, 'terma', 5, 1, 2, 3, 3, 0, 
+              4, 1, 'b'    , 3, 1, 5, 0
+  ) );
+} {
+  X'00057465726D6105010203030004016203010500'
+}
+
+do_execsql_test 1.3.1 {
+  UPDATE t1_segdir SET root = 
+    record(0,    5, 'terma', 5, 1, 2, 3, 3, 0, 
+              4, 1, 'b'    , 3, 1, 5, 
+              1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+              1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+              1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0
+          );
+}
+
+do_catchsql_test 1.3.2 {
+  SELECT snippet(t1) FROM t1 WHERE t1 MATCH 'term*'
+} {1 {database disk image is malformed}}
+
+do_execsql_test 1.4.1 {
+  UPDATE t1_segdir SET root = 
+    record(0,    5, 'terma', 5, 1, 2, 3, 3, 0, 
+              4, 1, 'b'    , 4, 1, 5, 
+              256, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+              1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+              1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0
+          );
+}
+
+do_catchsql_test 1.4.2 {
+  SELECT snippet(t1) FROM t1 WHERE t1 MATCH 'term*'
+} {1 {database disk image is malformed}}
+
+do_execsql_test 1.4.3 {
+  SELECT quote(root) FROM t1_segdir
+} {
+  X'00057465726D610501020303000401620401058002010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010100'
+}
+
+do_execsql_test 1.5.1 {
+  UPDATE t1_segdir SET root = 
+    record(0,    5, 'terma', 5, 1, 2, 3, 3, 0, 
+              4, 1, 'b'    , 4, 1, 5, 
+              256, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+              1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+              1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0
+          );
+}
+
+do_catchsql_test 1.4.2 {
+  SELECT snippet(t1) FROM t1 WHERE t1 MATCH 'term*'
+} {1 {database disk image is malformed}}
+
+do_execsql_test 1.4.3 {
+  SELECT quote(root) FROM t1_segdir
+} {
+  X'00057465726D610501020303000401620401058002010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010100'
+}
+
+
+do_execsql_test 1.5.1 {
+  UPDATE t1_segdir SET root = 
+  X'00057465726D61050102030300040162040105FF00010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010100'
+}
+
+do_catchsql_test 1.5.2 {
+  SELECT snippet(t1) FROM t1 WHERE t1 MATCH 'term*'
+} {1 {database disk image is malformed}}
+
+do_catchsql_test 1.5.3 {
+  INSERT INTO t1(t1) VALUES('integrity-check');
+} {1 {database disk image is malformed}}
+
+finish_test
diff --git a/test/fts4rename.test b/test/fts4rename.test
new file mode 100644
index 0000000000000000000000000000000000000000..5571ea7b1534c30a48c1668b3cdb7409face561f
--- /dev/null
+++ b/test/fts4rename.test
@@ -0,0 +1,43 @@
+# 2019 April 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/fts3_common.tcl
+set ::testprefix fts4rename
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE temp.t1 USING fts3(a);
+  BEGIN;
+  CREATE TABLE t2(x);
+} {}
+
+do_catchsql_test 1.1 {
+  ALTER TABLE t1_content RENAME c0a TO docid;
+} {1 {error in table t1_content after rename: duplicate column name: docid}}
+
+do_catchsql_test 1.2 {
+  UPDATE t1 SET Col0 = 1 ;
+} {1 {no such column: Col0}}
+
+do_catchsql_test 1.3 {
+  ROLLBACK;
+  DROP TABLE t1;
+} {0 {}}
+
+finish_test
diff --git a/test/fts4umlaut.test b/test/fts4umlaut.test
new file mode 100644
index 0000000000000000000000000000000000000000..a5a652fb42938d3616c8bc117622bb035477dde2
--- /dev/null
+++ b/test/fts4umlaut.test
@@ -0,0 +1,64 @@
+# 2018 December 3
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS5 module.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix fts4umlaut
+
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts4(x, tokenize=unicode61);
+  CREATE VIRTUAL TABLE t2 USING fts4(
+      x, 
+      tokenize=unicode61 "remove_diacritics=2"
+  );
+}
+
+foreach {tn q res1 res2} {
+  1 "Hà Nội"                  0 1
+  2 "Hà Noi"                  1 1
+  3 "Ha Noi"                  1 1
+  4 "Ha N\u1ed9i"             0 1
+  5 "Ha N\u006fi"             1 1
+  6 "Ha N\u006f\u0302i"       1 1
+  7 "Ha N\u006f\u0323\u0302i" 1 1
+} {
+  do_execsql_test 1.$tn.1 {
+    DELETE FROM t1;
+    INSERT INTO t1(rowid, x) VALUES (1, 'Ha Noi');
+    SELECT count(*) FROM t1 WHERE t1 MATCH $q
+  } $res1
+  do_execsql_test 1.$tn.2 {
+    DELETE FROM t1;
+    INSERT INTO t1(rowid, x) VALUES (1, $q);
+    SELECT count(*) FROM t1 WHERE t1 MATCH 'Ha Noi'
+  } $res1
+
+  do_execsql_test 1.$tn.3 {
+    DELETE FROM t2;
+    INSERT INTO t2(rowid, x) VALUES (1, 'Ha Noi');
+    SELECT count(*) FROM t2 WHERE t2 MATCH $q
+  } $res2
+  do_execsql_test 1.$tn.4 {
+    DELETE FROM t2;
+    INSERT INTO t2(rowid, x) VALUES (1, $q);
+    SELECT count(*) FROM t2 WHERE t2 MATCH 'Ha Noi'
+  } $res2
+}
+
+finish_test
diff --git a/test/fts4unicode.test b/test/fts4unicode.test
new file mode 100644
index 0000000000000000000000000000000000000000..facf2bf9c41b20bab9f36983c959ee91d7ecd513
--- /dev/null
+++ b/test/fts4unicode.test
@@ -0,0 +1,588 @@
+# 2012 May 25
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+# The tests in this file focus on testing the "unicode" FTS tokenizer.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable !fts3_unicode { finish_test ; return }
+set ::testprefix fts4unicode
+
+proc do_unicode_token_test {tn input res} {
+  set input [string map {' ''} $input]
+  uplevel [list do_execsql_test $tn "
+    SELECT fts3_tokenizer_test('unicode61', 'remove_diacritics=0', '$input');
+  " [list [list {*}$res]]]
+}
+
+proc do_unicode_token_test2 {tn input res} {
+  set input [string map {' ''} $input]
+  uplevel [list do_execsql_test $tn "
+    SELECT fts3_tokenizer_test('unicode61', '$input');
+  " [list [list {*}$res]]]
+}
+
+proc do_unicode_token_test3 {tn args} {
+  set res   [lindex $args end]
+  set sql "SELECT fts3_tokenizer_test('unicode61'"
+  foreach a [lrange $args 0 end-1] {
+    append sql ", '"
+    append sql [string map {' ''} $a]
+    append sql "'"
+  }
+  append sql ")"
+  uplevel [list do_execsql_test $tn $sql [list [list {*}$res]]]
+}
+
+do_unicode_token_test 1.0 {a B c D} {0 a a 1 b B 2 c c 3 d D}
+
+do_unicode_token_test 1.1 "\uC4 \uD6 \uDC" \
+    "0 \uE4 \uC4 1 \uF6 \uD6 2 \uFC \uDC"
+
+do_unicode_token_test 1.2 "x\uC4x x\uD6x x\uDCx" \
+    "0 x\uE4x x\uC4x 1 x\uF6x x\uD6x 2 x\uFCx x\uDCx"
+
+# 0x00DF is a small "sharp s". 0x1E9E is a capital sharp s.
+do_unicode_token_test 1.3 "\uDF" "0 \uDF \uDF"
+do_unicode_token_test 1.4 "\u1E9E" "0 \uDF \u1E9E"
+
+do_unicode_token_test 1.5 "The quick brown fox" {
+  0 the The 1 quick quick 2 brown brown 3 fox fox
+}
+do_unicode_token_test 1.6 "The\u00bfquick\u224ebrown\u2263fox" {
+  0 the The 1 quick quick 2 brown brown 3 fox fox
+}
+
+do_unicode_token_test2 1.7  {a B c D} {0 a a 1 b B 2 c c 3 d D}
+do_unicode_token_test2 1.8  "\uC4 \uD6 \uDC" "0 a \uC4 1 o \uD6 2 u \uDC"
+
+do_unicode_token_test2 1.9  "x\uC4x x\uD6x x\uDCx" \
+    "0 xax x\uC4x 1 xox x\uD6x 2 xux x\uDCx"
+
+# Check that diacritics are removed if remove_diacritics=1 is specified.
+# And that they do not break tokens.
+do_unicode_token_test2 1.10 "xx\u0301xx" "0 xxxx xx\u301xx"
+
+# Title-case mappings work
+do_unicode_token_test 1.11 "\u01c5" "0 \u01c6 \u01c5"
+
+#-------------------------------------------------------------------------
+#
+set docs [list {
+  Enhance the INSERT syntax to allow multiple rows to be inserted via the
+  VALUES clause.
+} {
+  Enhance the CREATE VIRTUAL TABLE command to support the IF NOT EXISTS clause.
+} {
+  Added the sqlite3_stricmp() interface as a counterpart to sqlite3_strnicmp().
+} {
+  Added the sqlite3_db_readonly() interface.
+} {
+  Added the SQLITE_FCNTL_PRAGMA file control, giving VFS implementations the
+  ability to add new PRAGMA statements or to override built-in PRAGMAs.  
+} {
+  Queries of the form: "SELECT max(x), y FROM table" returns the value of y on
+  the same row that contains the maximum x value.
+} {
+  Added support for the FTS4 languageid option.
+} {
+  Documented support for the FTS4 content option. This feature has actually
+  been in the code since version 3.7.9 but is only now considered to be
+  officially supported.  
+} {
+  Pending statements no longer block ROLLBACK. Instead, the pending statement
+  will return SQLITE_ABORT upon next access after the ROLLBACK.  
+} {
+  Improvements to the handling of CSV inputs in the command-line shell
+} {
+  Fix a bug introduced in version 3.7.10 that might cause a LEFT JOIN to be
+  incorrectly converted into an INNER JOIN if the WHERE clause indexable terms
+  connected by OR.  
+}]
+
+set map(a) [list "\u00C4" "\u00E4"]  ; # LATIN LETTER A WITH DIAERESIS
+set map(e) [list "\u00CB" "\u00EB"]  ; # LATIN LETTER E WITH DIAERESIS
+set map(i) [list "\u00CF" "\u00EF"]  ; # LATIN LETTER I WITH DIAERESIS
+set map(o) [list "\u00D6" "\u00F6"]  ; # LATIN LETTER O WITH DIAERESIS
+set map(u) [list "\u00DC" "\u00FC"]  ; # LATIN LETTER U WITH DIAERESIS
+set map(y) [list "\u0178" "\u00FF"]  ; # LATIN LETTER Y WITH DIAERESIS
+set map(h) [list "\u1E26" "\u1E27"]  ; # LATIN LETTER H WITH DIAERESIS
+set map(w) [list "\u1E84" "\u1E85"]  ; # LATIN LETTER W WITH DIAERESIS
+set map(x) [list "\u1E8C" "\u1E8D"]  ; # LATIN LETTER X WITH DIAERESIS
+foreach k [array names map] {
+  lappend mappings [string toupper $k] [lindex $map($k) 0] 
+  lappend mappings $k [lindex $map($k) 1]
+}
+proc mapdoc {doc} { 
+  set doc [regsub -all {[[:space:]]+} $doc " "]
+  string map $::mappings [string trim $doc] 
+}
+
+do_test 2.0 {
+  execsql { CREATE VIRTUAL TABLE t2 USING fts4(tokenize=unicode61, x); }
+  foreach doc $docs {
+    set d [mapdoc $doc]
+    execsql { INSERT INTO t2 VALUES($d) }
+  }
+} {}
+
+do_test 2.1 {
+  set q [mapdoc "row"]
+  execsql { SELECT * FROM t2 WHERE t2 MATCH $q }
+} [list [mapdoc {
+  Queries of the form: "SELECT max(x), y FROM table" returns the value of y on
+  the same row that contains the maximum x value.
+}]]
+
+foreach {tn query snippet} {
+  2 "row" {
+     ...returns the value of y on the same [row] that contains 
+     the maximum x value.
+  }
+  3 "ROW" {
+     ...returns the value of y on the same [row] that contains 
+     the maximum x value.
+  }
+  4 "rollback" {
+     ...[ROLLBACK]. Instead, the pending statement
+     will return SQLITE_ABORT upon next access after the [ROLLBACK].
+  }
+  5 "rOllback" {
+     ...[ROLLBACK]. Instead, the pending statement
+     will return SQLITE_ABORT upon next access after the [ROLLBACK].
+  }
+  6 "lang*" {
+     Added support for the FTS4 [languageid] option.
+  }
+} {
+  do_test 2.$tn {
+    set q [mapdoc $query]
+    execsql { SELECT snippet(t2, '[', ']', '...') FROM t2 WHERE t2 MATCH $q }
+  } [list [mapdoc $snippet]]
+}
+
+#-------------------------------------------------------------------------
+# Make sure the unicode61 tokenizer does not crash if it is passed a 
+# NULL pointer.
+reset_db
+do_execsql_test 3.1 {
+  CREATE VIRTUAL TABLE t1 USING fts4(tokenize=unicode61, x, y);
+  INSERT INTO t1 VALUES(NULL, 'a b c');
+}
+
+do_execsql_test 3.2 {
+  SELECT snippet(t1, '[', ']') FROM t1 WHERE t1 MATCH 'b'
+} {{a [b] c}}
+
+do_execsql_test 3.3 {
+  BEGIN;
+  DELETE FROM t1;
+  INSERT INTO t1 VALUES('b b b b b b b b b b b', 'b b b b b b b b b b b b b');
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 VALUES('a b c', NULL);
+  INSERT INTO t1 VALUES('a x c', NULL);
+  COMMIT;
+}
+
+do_execsql_test 3.4 {
+  SELECT * FROM t1 WHERE t1 MATCH 'a b';
+} {{a b c} {}}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+
+do_test 4.1 {
+  set a "abc\uFFFEdef"
+  set b "abc\uD800def"
+  set c "\uFFFEdef"
+  set d "\uD800def"
+  execsql {
+    CREATE VIRTUAL TABLE t1 USING fts4(tokenize=unicode61, x);
+    INSERT INTO t1 VALUES($a);
+    INSERT INTO t1 VALUES($b);
+    INSERT INTO t1 VALUES($c);
+    INSERT INTO t1 VALUES($d);
+  }
+} {}
+
+do_test 4.2 {
+  set a [binary format c* {0x61 0xF7 0xBF 0xBF 0xBF 0x62}]
+  set b [binary format c* {0x61 0xF7 0xBF 0xBF 0xBF 0xBF 0x62}]
+  set c [binary format c* {0x61 0xF7 0xBF 0xBF 0xBF 0xBF 0xBF 0x62}]
+  set d [binary format c* {0x61 0xF7 0xBF 0xBF 0xBF 0xBF 0xBF 0xBF 0x62}]
+  execsql {
+    INSERT INTO t1 VALUES($a);
+    INSERT INTO t1 VALUES($b);
+    INSERT INTO t1 VALUES($c);
+    INSERT INTO t1 VALUES($d);
+  }
+} {}
+
+do_test 4.3 {
+  set a [binary format c* {0xF7 0xBF 0xBF 0xBF}]
+  set b [binary format c* {0xF7 0xBF 0xBF 0xBF 0xBF}]
+  set c [binary format c* {0xF7 0xBF 0xBF 0xBF 0xBF 0xBF}]
+  set d [binary format c* {0xF7 0xBF 0xBF 0xBF 0xBF 0xBF 0xBF}]
+  execsql {
+    INSERT INTO t1 VALUES($a);
+    INSERT INTO t1 VALUES($b);
+    INSERT INTO t1 VALUES($c);
+    INSERT INTO t1 VALUES($d);
+  }
+} {}
+
+#-------------------------------------------------------------------------
+
+do_unicode_token_test3 5.1 {tokenchars=} {
+  sqlite3_reset sqlite3_column_int
+} {
+  0 sqlite3 sqlite3 
+  1 reset reset 
+  2 sqlite3 sqlite3 
+  3 column column 
+  4 int int
+}
+
+do_unicode_token_test3 5.2 {tokenchars=_} {
+  sqlite3_reset sqlite3_column_int
+} {
+  0 sqlite3_reset sqlite3_reset 
+  1 sqlite3_column_int sqlite3_column_int
+}
+
+do_unicode_token_test3 5.3 {separators=xyz} {
+  Laotianxhorseyrunszfast
+} {
+  0 laotian Laotian
+  1 horse horse
+  2 runs runs
+  3 fast fast
+}
+
+do_unicode_token_test3 5.4 {tokenchars=xyz} {
+  Laotianxhorseyrunszfast
+} {
+  0 laotianxhorseyrunszfast Laotianxhorseyrunszfast
+}
+
+do_unicode_token_test3 5.5 {tokenchars=_} {separators=zyx} {
+  sqlite3_resetxsqlite3_column_intyhonda_phantom
+} {
+  0 sqlite3_reset sqlite3_reset 
+  1 sqlite3_column_int sqlite3_column_int
+  2 honda_phantom honda_phantom
+}
+
+do_unicode_token_test3 5.6 "separators=\u05D1" "abc\u05D1def" {
+  0 abc abc 1 def def
+}
+
+do_unicode_token_test3 5.7                             \
+  "tokenchars=\u2444\u2445"                            \
+  "separators=\u05D0\u05D1\u05D2"                      \
+  "\u2444fre\u2445sh\u05D0water\u05D2fish.\u2445timer" \
+  [list                                                \
+    0 \u2444fre\u2445sh \u2444fre\u2445sh              \
+    1 water water                                      \
+    2 fish fish                                        \
+    3 \u2445timer \u2445timer                          \
+  ]
+
+# Check that it is not possible to add a standalone diacritic codepoint 
+# to either separators or tokenchars.
+do_unicode_token_test3 5.8 "separators=\u0301" \
+  "hello\u0301world \u0301helloworld"          \
+  "0 helloworld hello\u0301world 1 helloworld helloworld"
+
+do_unicode_token_test3 5.9 "tokenchars=\u0301" \
+  "hello\u0301world \u0301helloworld"          \
+  "0 helloworld hello\u0301world 1 helloworld helloworld"
+
+do_unicode_token_test3 5.10 "separators=\u0301" \
+  "remove_diacritics=0"                        \
+  "hello\u0301world \u0301helloworld"          \
+  "0 hello\u0301world hello\u0301world 1 helloworld helloworld"
+
+do_unicode_token_test3 5.11 "tokenchars=\u0301" \
+  "remove_diacritics=0"                         \
+  "hello\u0301world \u0301helloworld"           \
+  "0 hello\u0301world hello\u0301world 1 helloworld helloworld"
+
+
+#-------------------------------------------------------------------------
+
+proc do_tokenize {tokenizer txt} {
+  set res [list]
+  foreach {a b c} [db one {SELECT fts3_tokenizer_test($tokenizer, $txt)}] {
+    lappend res $b
+  }
+  set res
+}
+
+# Argument $lCodepoint must be a list of codepoints (integers) that 
+# correspond to whitespace characters. This command creates a string
+# $W from the codepoints, then tokenizes "${W}hello{$W}world${W}" 
+# using tokenizer $tokenizer. The test passes if the tokenizer successfully
+# extracts the two 5 character tokens.
+#
+proc do_isspace_test {tn tokenizer lCp} {
+  set whitespace [format [string repeat %c [llength $lCp]] {*}$lCp] 
+  set txt "${whitespace}hello${whitespace}world${whitespace}"
+  uplevel [list do_test $tn [list do_tokenize $tokenizer $txt] {hello world}]
+}
+
+set tokenizers [list unicode61]
+ifcapable icu { lappend tokenizers icu }
+
+# Some tests to check that the tokenizers can both identify white-space 
+# codepoints. All codepoints tested below are of type "Zs" in the
+# UnicodeData.txt file.
+#
+# Note that codepoint 6158 has changed from Zs to Cf in recent versions
+# of UnicodeData.txt.  So take that into account for the "icu" tests.
+#
+foreach T $tokenizers {
+  do_isspace_test 6.$T.1 $T    32
+  do_isspace_test 6.$T.2 $T    160
+  do_isspace_test 6.$T.3 $T    5760
+  if {$T!="icu"} {
+    do_isspace_test 6.$T.4 $T    6158
+  }
+  do_isspace_test 6.$T.5 $T    8192
+  do_isspace_test 6.$T.6 $T    8193
+  do_isspace_test 6.$T.7 $T    8194
+  do_isspace_test 6.$T.8 $T    8195
+  do_isspace_test 6.$T.9 $T    8196
+  do_isspace_test 6.$T.10 $T    8197
+  do_isspace_test 6.$T.11 $T    8198
+  do_isspace_test 6.$T.12 $T    8199
+  do_isspace_test 6.$T.13 $T    8200
+  do_isspace_test 6.$T.14 $T    8201
+  do_isspace_test 6.$T.15 $T    8202
+  if {$T!="icu"} {
+    do_isspace_test 6.$T.16 $T    8239
+  }
+  do_isspace_test 6.$T.17 $T    8287
+  do_isspace_test 6.$T.18 $T   12288
+
+  if {$T!="icu"} {
+    do_isspace_test 6.$T.19 $T   {32 160 5760 6158}
+  } else {
+    do_isspace_test 6.$T.19 $T   {32 160 5760 8192}
+  }
+  do_isspace_test 6.$T.20 $T   {8192 8193 8194 8195}
+  do_isspace_test 6.$T.21 $T   {8196 8197 8198 8199}
+  do_isspace_test 6.$T.22 $T   {8200 8201 8202 8239}
+  do_isspace_test 6.$T.23 $T   {8287 12288}
+}
+
+#-------------------------------------------------------------------------
+# Test that the private use ranges are treated as alphanumeric.
+#
+foreach {tn1 c} {
+  1 \ue000 2 \ue001 3 \uf000 4 \uf8fe 5 \uf8ff
+} {
+  foreach {tn2 config res} {
+    1 ""             "0 hello*world hello*world"
+    2 "separators=*" "0 hello hello 1 world world"
+  } {
+    set config [string map [list * $c] $config]
+    set input  [string map [list * $c] "hello*world"]
+    set output [string map [list * $c] $res]
+    do_unicode_token_test3 7.$tn1.$tn2 {*}$config $input $output
+  }
+}
+
+#-------------------------------------------------------------------------
+# Cursory test of remove_diacritics=0.
+#
+# 00C4;LATIN CAPITAL LETTER A WITH DIAERESIS
+# 00D6;LATIN CAPITAL LETTER O WITH DIAERESIS
+# 00E4;LATIN SMALL LETTER A WITH DIAERESIS
+# 00F6;LATIN SMALL LETTER O WITH DIAERESIS
+#
+do_execsql_test 8.1.1 "
+  CREATE VIRTUAL TABLE t3 USING fts4(tokenize=unicode61 'remove_diacritics=1');
+  INSERT INTO t3 VALUES('o');
+  INSERT INTO t3 VALUES('a');
+  INSERT INTO t3 VALUES('O');
+  INSERT INTO t3 VALUES('A');
+  INSERT INTO t3 VALUES('\xD6');
+  INSERT INTO t3 VALUES('\xC4');
+  INSERT INTO t3 VALUES('\xF6');
+  INSERT INTO t3 VALUES('\xE4');
+"
+do_execsql_test 8.1.2 {
+  SELECT rowid FROM t3 WHERE t3 MATCH 'o';
+} {1 3 5 7}
+do_execsql_test 8.1.3 {
+  SELECT rowid FROM t3 WHERE t3 MATCH 'a';
+} {2 4 6 8}
+do_execsql_test 8.2.1 {
+  CREATE VIRTUAL TABLE t4 USING fts4(tokenize=unicode61 "remove_diacritics=0");
+  INSERT INTO t4 SELECT * FROM t3;
+}
+do_execsql_test 8.2.2 {
+  SELECT rowid FROM t4 WHERE t4 MATCH 'o';
+} {1 3}
+do_execsql_test 8.2.3 {
+  SELECT rowid FROM t4 WHERE t4 MATCH 'a';
+} {2 4}
+
+#-------------------------------------------------------------------------
+#
+foreach {tn sql} {
+  1 {
+    CREATE VIRTUAL TABLE t5 USING fts4(tokenize=unicode61 [tokenchars= .]);
+    CREATE VIRTUAL TABLE t6 USING fts4(
+        tokenize=unicode61 [tokenchars=="] "tokenchars=[]");
+    CREATE VIRTUAL TABLE t7 USING fts4(tokenize=unicode61 [separators=x\xC4]);
+  }
+  2 {
+    CREATE VIRTUAL TABLE t5 USING fts4(tokenize=unicode61 "tokenchars= .");
+    CREATE VIRTUAL TABLE t6 USING fts4(tokenize=unicode61 "tokenchars=[=""]");
+    CREATE VIRTUAL TABLE t7 USING fts4(tokenize=unicode61 "separators=x\xC4");
+  }
+  3 {
+    CREATE VIRTUAL TABLE t5 USING fts4(tokenize=unicode61 'tokenchars= .');
+    CREATE VIRTUAL TABLE t6 USING fts4(tokenize=unicode61 'tokenchars=="[]');
+    CREATE VIRTUAL TABLE t7 USING fts4(tokenize=unicode61 'separators=x\xC4');
+  }
+  4 {
+    CREATE VIRTUAL TABLE t5 USING fts4(tokenize=unicode61 `tokenchars= .`);
+    CREATE VIRTUAL TABLE t6 USING fts4(tokenize=unicode61 `tokenchars=[="]`);
+    CREATE VIRTUAL TABLE t7 USING fts4(tokenize=unicode61 `separators=x\xC4`);
+  }
+} {
+  do_execsql_test 9.$tn.0 { 
+    DROP TABLE IF EXISTS t5;
+    DROP TABLE IF EXISTS t5aux;
+    DROP TABLE IF EXISTS t6;
+    DROP TABLE IF EXISTS t6aux;
+    DROP TABLE IF EXISTS t7;
+    DROP TABLE IF EXISTS t7aux;
+  }
+  do_execsql_test 9.$tn.1 $sql
+
+  do_execsql_test 9.$tn.2 {
+    CREATE VIRTUAL TABLE t5aux USING fts4aux(t5);
+    INSERT INTO t5 VALUES('one two three/four.five.six');
+    SELECT * FROM t5aux;
+  } {
+    four.five.six   * 1 1 four.five.six   0 1 1 
+    {one two three} * 1 1 {one two three} 0 1 1
+  }
+
+  do_execsql_test 9.$tn.3 {
+    CREATE VIRTUAL TABLE t6aux USING fts4aux(t6);
+    INSERT INTO t6 VALUES('alpha=beta"gamma/delta[epsilon]zeta');
+    SELECT * FROM t6aux;
+  } {
+    {alpha=beta"gamma}   * 1 1 {alpha=beta"gamma} 0 1 1 
+    {delta[epsilon]zeta} * 1 1 {delta[epsilon]zeta} 0 1 1
+  }
+
+  do_execsql_test 9.$tn.4 {
+    CREATE VIRTUAL TABLE t7aux USING fts4aux(t7);
+    INSERT INTO t7 VALUES('alephxbeth\xC4gimel');
+    SELECT * FROM t7aux;
+  } {
+    aleph * 1 1 aleph 0 1 1 
+    beth  * 1 1 beth  0 1 1 
+    gimel * 1 1 gimel 0 1 1
+  }
+}
+
+# Check that multiple options are handled correctly.
+#
+do_execsql_test 10.1 {
+  DROP TABLE IF EXISTS t1;
+  CREATE VIRTUAL TABLE t1 USING fts4(tokenize=unicode61
+    "tokenchars=xyz" "tokenchars=.=" "separators=.=" "separators=xy"
+    "separators=a" "separators=a" "tokenchars=a" "tokenchars=a"
+  );
+
+  INSERT INTO t1 VALUES('oneatwoxthreeyfour');
+  INSERT INTO t1 VALUES('a.single=word');
+  CREATE VIRTUAL TABLE t1aux USING fts4aux(t1);
+  SELECT * FROM t1aux;
+} {
+  .single=word * 1 1 .single=word 0 1 1 
+  four         * 1 1 four         0 1 1 
+  one          * 1 1 one          0 1 1 
+  three        * 1 1 three        0 1 1 
+  two          * 1 1 two          0 1 1
+}
+
+# Test that case folding happens after tokenization, not before.
+#
+do_execsql_test 10.2 {
+  DROP TABLE IF EXISTS t2;
+  CREATE VIRTUAL TABLE t2 USING fts4(tokenize=unicode61 "separators=aB");
+  INSERT INTO t2 VALUES('oneatwoBthree');
+  INSERT INTO t2 VALUES('onebtwoAthree');
+  CREATE VIRTUAL TABLE t2aux USING fts4aux(t2);
+  SELECT * FROM t2aux;
+} {
+  one           * 1 1 one           0 1 1 
+  onebtwoathree * 1 1 onebtwoathree 0 1 1 
+  three         * 1 1 three         0 1 1 
+  two           * 1 1 two           0 1 1
+}
+
+# Test that the tokenchars and separators options work with the 
+# fts3tokenize table.
+#
+do_execsql_test 11.1 {
+  CREATE VIRTUAL TABLE ft1 USING fts3tokenize(
+    "unicode61", "tokenchars=@.", "separators=1234567890"
+  );
+  SELECT token FROM ft1 WHERE input = 'berlin@street123sydney.road';
+} {
+  berlin@street sydney.road
+}
+
+# Test for embedded nul characters in fts4 unicode index.
+#
+do_execsql_test 12.0 {
+  CREATE VIRTUAL TABLE t12 USING fts4(tokenize=unicode61);
+  INSERT INTO t12 VALUES('abc' || char(0) || 'def');
+  SELECT hex(CAST(content AS blob)) FROM t12;
+} {61626300646566}
+do_execsql_test 12.1 {
+  INSERT INTO t12(t12) VALUES('integrity-check');
+} {}
+do_execsql_test 12.2 { 
+  CREATE VIRTUAL TABLE t12aux USING fts4aux(t12);
+  SELECT * FROM t12aux;
+} {abc * 1 1 abc 0 1 1}
+do_execsql_test 12.3 { 
+  SELECT hex(CAST(content AS blob)) FROM t12 WHERE t12 MATCH 'abc'
+} {61626300646566}
+
+finish_test
diff --git a/test/fts4upfrom.test b/test/fts4upfrom.test
new file mode 100644
index 0000000000000000000000000000000000000000..889b64ad680c1649ffe6de15a2b5f7402dfadaaa
--- /dev/null
+++ b/test/fts4upfrom.test
@@ -0,0 +1,139 @@
+# 2020 February 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing UPDATE statements with FROM clauses
+# against FTS4 tables.
+#
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix fts4upfrom
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+foreach {tn create_table} {
+  0 { CREATE VIRTUAL TABLE ft USING fts5(a, b, c) }
+  1 { CREATE VIRTUAL TABLE ft USING fts3(a, b, c) }
+  2 { CREATE TABLE ft(a, b, c) }
+  3 { 
+    CREATE TABLE real(a, b, c);
+    CREATE INDEX i1 ON real(a);
+    CREATE VIEW ft AS SELECT rowid, a, b, c FROM real;
+    CREATE TRIGGER tr1 INSTEAD OF INSERT ON ft BEGIN
+      INSERT INTO real(rowid, a, b, c) VALUES(new.rowid, new.a, new.b, new.c);
+    END;
+    CREATE TRIGGER tr2 INSTEAD OF UPDATE ON ft BEGIN
+      UPDATE real SET rowid=new.rowid, a=new.a, b=new.b, c=new.c 
+      WHERE rowid=old.rowid;
+    END;
+  }
+} {
+  if {$tn==0} { ifcapable !fts5 { continue } }
+  catchsql { DROP VIEW IF EXISTS changes }
+  catchsql { DROP TABLE IF EXISTS ft }
+  catchsql { DROP VIEW IF EXISTS ft }
+  execsql $create_table
+
+  do_execsql_test 1.$tn.0 {
+    INSERT INTO ft(a, b, c) VALUES('a', NULL, 'apple');
+    INSERT INTO ft(a, b, c) VALUES('b', NULL, 'banana');
+    INSERT INTO ft(a, b, c) VALUES('c', NULL, 'cherry');
+    INSERT INTO ft(a, b, c) VALUES('d', NULL, 'damson plum');
+  }
+  
+  do_execsql_test 1.$tn.1 {
+    SELECT a, b, c FROM ft ORDER BY rowid;
+  } {
+    a {} apple
+    b {} banana
+    c {} cherry
+    d {} {damson plum}
+  }
+  
+  do_execsql_test 1.$tn.2 {
+    UPDATE ft SET b=o.c FROM ft AS o WHERE (ft.a == char(unicode(o.a)+1))
+  }
+  
+  do_execsql_test 1.$tn.3 {
+    SELECT a, b, c FROM ft ORDER BY rowid;
+  } {
+    a {} apple
+    b apple banana
+    c banana cherry
+    d cherry {damson plum}
+  }
+
+  do_catchsql_test 1.$tn.4 {
+    UPDATE ft SET c=v FROM changes WHERE a=k;
+  } {1 {no such table: changes}}
+
+  do_execsql_test 1.$tn.5 {
+    create view changes(k, v) AS 
+      VALUES( 'd', 'dewberry' ) UNION ALL
+      VALUES( 'c', 'clementine' ) UNION ALL
+      VALUES( 'b', 'blueberry' ) UNION ALL
+      VALUES( 'a', 'apricot' ) 
+    ;
+  }
+
+  do_execsql_test 1.$tn.6 {
+    UPDATE ft SET c=v FROM changes WHERE a=k;
+  }
+
+  do_execsql_test 1.$tn.7 {
+    SELECT rowid, a, b, c FROM ft ORDER BY rowid;
+  } {
+    1 a {} apricot
+    2 b apple blueberry
+    3 c banana clementine
+    4 d cherry dewberry
+  }
+
+  do_execsql_test 1.$tn.8 "
+    WITH x1(o, n) AS (
+        VALUES(1, 11) UNION ALL
+        VALUES(2, 12) UNION ALL
+        VALUES(3, 13) UNION ALL
+        VALUES(4, 14)
+    )
+    SELECT ft.rowid, a, b, c, o, n FROM ft, x1 WHERE ft.rowid = o;
+  " {
+    1 a {} apricot 1 11
+    2 b apple blueberry 2 12
+    3 c banana clementine 3 13
+    4 d cherry dewberry 4 14
+  }
+
+  set ROWID rowid
+  if {$tn==1} { set ROWID docid }
+  do_execsql_test 1.$tn.9 "
+    WITH x1(o, n) AS (
+        VALUES(1, 11) UNION ALL
+        VALUES(2, 12) UNION ALL
+        VALUES(3, 13) UNION ALL
+        VALUES(4, 14)
+    )
+    UPDATE ft SET $ROWID = n FROM x1 WHERE ft.rowid = o;
+    SELECT rowid, a, b, c FROM ft ORDER BY rowid;
+  " {
+    11 a {} apricot
+    12 b apple blueberry
+    13 c banana clementine
+    14 d cherry dewberry
+  }
+}
+
+finish_test
diff --git a/test/full.test b/test/full.test
new file mode 100644
index 0000000000000000000000000000000000000000..a8fe37144982582d1b1e3b191cc6962fb1adf454
--- /dev/null
+++ b/test/full.test
@@ -0,0 +1,20 @@
+# 2012 September 12
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file runs the "full" test suite. It is a peer of the quick.test
+# and all.test scripts.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/permutations.test
+
+run_test_suite full
+
+finish_test
diff --git a/test/func.test b/test/func.test
new file mode 100644
index 0000000000000000000000000000000000000000..85c9ada7eb8630ab49c169b68a11aa5174cdb4e8
--- /dev/null
+++ b/test/func.test
@@ -0,0 +1,1598 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing built-in functions.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix func
+
+# Create a table to work with.
+#
+do_test func-0.0 {
+  execsql {CREATE TABLE tbl1(t1 text)}
+  foreach word {this program is free software} {
+    execsql "INSERT INTO tbl1 VALUES('$word')"
+  }
+  execsql {SELECT t1 FROM tbl1 ORDER BY t1}
+} {free is program software this}
+do_test func-0.1 {
+  execsql {
+     CREATE TABLE t2(a);
+     INSERT INTO t2 VALUES(1);
+     INSERT INTO t2 VALUES(NULL);
+     INSERT INTO t2 VALUES(345);
+     INSERT INTO t2 VALUES(NULL);
+     INSERT INTO t2 VALUES(67890);
+     SELECT * FROM t2;
+  }
+} {1 {} 345 {} 67890}
+
+# Check out the length() function
+#
+do_test func-1.0 {
+  execsql {SELECT length(t1) FROM tbl1 ORDER BY t1}
+} {4 2 7 8 4}
+set isutf16 [regexp 16 [db one {PRAGMA encoding}]]
+do_execsql_test func-1.0b {
+  SELECT octet_length(t1) FROM tbl1 ORDER BY t1;
+} [expr {$isutf16?"8 4 14 16 8":"4 2 7 8 4"}]
+do_test func-1.1 {
+  set r [catch {execsql {SELECT length(*) FROM tbl1 ORDER BY t1}} msg]
+  lappend r $msg
+} {1 {wrong number of arguments to function length()}}
+do_test func-1.2 {
+  set r [catch {execsql {SELECT length(t1,5) FROM tbl1 ORDER BY t1}} msg]
+  lappend r $msg
+} {1 {wrong number of arguments to function length()}}
+do_test func-1.3 {
+  execsql {SELECT length(t1), count(*) FROM tbl1 GROUP BY length(t1)
+           ORDER BY length(t1)}
+} {2 1 4 2 7 1 8 1}
+do_test func-1.4 {
+  execsql {SELECT coalesce(length(a),-1) FROM t2}
+} {1 -1 3 -1 5}
+do_execsql_test func-1.5 {
+  SELECT octet_length(12345);
+} [expr {(1+($isutf16!=0))*5}]
+db null NULL
+do_execsql_test func-1.6 {
+  SELECT octet_length(NULL);
+} {NULL}
+do_execsql_test func-1.7 {
+  SELECT octet_length(7.5);
+} [expr {(1+($isutf16!=0))*3}]
+do_execsql_test func-1.8 {
+  SELECT octet_length(x'30313233');
+} {4}
+do_execsql_test func-1.9 {
+  WITH c(x) AS (VALUES(char(350,351,352,353,354)))
+  SELECT length(x), octet_length(x) FROM c;
+} {5 10}
+
+
+
+# Check out the substr() function
+#
+db null {}
+do_test func-2.0 {
+  execsql {SELECT substr(t1,1,2) FROM tbl1 ORDER BY t1}
+} {fr is pr so th}
+do_test func-2.1 {
+  execsql {SELECT substr(t1,2,1) FROM tbl1 ORDER BY t1}
+} {r s r o h}
+do_test func-2.2 {
+  execsql {SELECT substr(t1,3,3) FROM tbl1 ORDER BY t1}
+} {ee {} ogr ftw is}
+do_test func-2.3 {
+  execsql {SELECT substr(t1,-1,1) FROM tbl1 ORDER BY t1}
+} {e s m e s}
+do_test func-2.4 {
+  execsql {SELECT substr(t1,-1,2) FROM tbl1 ORDER BY t1}
+} {e s m e s}
+do_test func-2.5 {
+  execsql {SELECT substr(t1,-2,1) FROM tbl1 ORDER BY t1}
+} {e i a r i}
+do_test func-2.6 {
+  execsql {SELECT substr(t1,-2,2) FROM tbl1 ORDER BY t1}
+} {ee is am re is}
+do_test func-2.7 {
+  execsql {SELECT substr(t1,-4,2) FROM tbl1 ORDER BY t1}
+} {fr {} gr wa th}
+do_test func-2.8 {
+  execsql {SELECT t1 FROM tbl1 ORDER BY substr(t1,2,20)}
+} {this software free program is}
+do_test func-2.9 {
+  execsql {SELECT substr(a,1,1) FROM t2}
+} {1 {} 3 {} 6}
+do_test func-2.10 {
+  execsql {SELECT substr(a,2,2) FROM t2}
+} {{} {} 45 {} 78}
+do_test func-2.11 {
+  execsql {SELECT substr('abcdefg',0x100000001,2)}
+} {{}}
+do_test func-2.12 {
+  execsql {SELECT substr('abcdefg',1,0x100000002)}
+} {abcdefg}
+do_test func-2.13 {
+  execsql {SELECT quote(substr(x'313233343536373839',0x7ffffffffffffffe,5))}
+} {X''}
+
+# Only do the following tests if TCL has UTF-8 capabilities
+#
+if {"\u1234"!="u1234"} {
+
+# Put some UTF-8 characters in the database
+#
+do_test func-3.0 {
+  execsql {DELETE FROM tbl1}
+  foreach word "contains UTF-8 characters hi\u1234ho" {
+    execsql "INSERT INTO tbl1 VALUES('$word')"
+  }
+  execsql {SELECT t1 FROM tbl1 ORDER BY t1}
+} "UTF-8 characters contains hi\u1234ho"
+do_test func-3.1 {
+  execsql {SELECT length(t1) FROM tbl1 ORDER BY t1}
+} {5 10 8 5}
+do_test func-3.2 {
+  execsql {SELECT substr(t1,1,2) FROM tbl1 ORDER BY t1}
+} {UT ch co hi}
+do_test func-3.3 {
+  execsql {SELECT substr(t1,1,3) FROM tbl1 ORDER BY t1}
+} "UTF cha con hi\u1234"
+do_test func-3.4 {
+  execsql {SELECT substr(t1,2,2) FROM tbl1 ORDER BY t1}
+} "TF ha on i\u1234"
+do_test func-3.5 {
+  execsql {SELECT substr(t1,2,3) FROM tbl1 ORDER BY t1}
+} "TF- har ont i\u1234h"
+do_test func-3.6 {
+  execsql {SELECT substr(t1,3,2) FROM tbl1 ORDER BY t1}
+} "F- ar nt \u1234h"
+do_test func-3.7 {
+  execsql {SELECT substr(t1,4,2) FROM tbl1 ORDER BY t1}
+} "-8 ra ta ho"
+do_test func-3.8 {
+  execsql {SELECT substr(t1,-1,1) FROM tbl1 ORDER BY t1}
+} "8 s s o"
+do_test func-3.9 {
+  execsql {SELECT substr(t1,-3,2) FROM tbl1 ORDER BY t1}
+} "F- er in \u1234h"
+do_test func-3.10 {
+  execsql {SELECT substr(t1,-4,3) FROM tbl1 ORDER BY t1}
+} "TF- ter ain i\u1234h"
+do_test func-3.99 {
+  execsql {DELETE FROM tbl1}
+  foreach word {this program is free software} {
+    execsql "INSERT INTO tbl1 VALUES('$word')"
+  }
+  execsql {SELECT t1 FROM tbl1}
+} {this program is free software}
+
+} ;# End \u1234!=u1234
+
+# Test the abs() and round() functions.
+#
+ifcapable !floatingpoint {
+  do_test func-4.1 {
+    execsql {
+      CREATE TABLE t1(a,b,c);
+      INSERT INTO t1 VALUES(1,2,3);
+      INSERT INTO t1 VALUES(2,12345678901234,-1234567890);
+      INSERT INTO t1 VALUES(3,-2,-5);
+    }
+    catchsql {SELECT abs(a,b) FROM t1}
+  } {1 {wrong number of arguments to function abs()}}
+}
+ifcapable floatingpoint {
+  do_test func-4.1 {
+    execsql {
+      CREATE TABLE t1(a,b,c);
+      INSERT INTO t1 VALUES(1,2,3);
+      INSERT INTO t1 VALUES(2,1.2345678901234,-12345.67890);
+      INSERT INTO t1 VALUES(3,-2,-5);
+    }
+    catchsql {SELECT abs(a,b) FROM t1}
+  } {1 {wrong number of arguments to function abs()}}
+}
+do_test func-4.2 {
+  catchsql {SELECT abs() FROM t1}
+} {1 {wrong number of arguments to function abs()}}
+ifcapable floatingpoint {
+  do_test func-4.3 {
+    catchsql {SELECT abs(b) FROM t1 ORDER BY a}
+  } {0 {2 1.2345678901234 2}}
+  do_test func-4.4 {
+    catchsql {SELECT abs(c) FROM t1 ORDER BY a}
+  } {0 {3 12345.6789 5}}
+}
+ifcapable !floatingpoint {
+  if {[working_64bit_int]} {
+    do_test func-4.3 {
+      catchsql {SELECT abs(b) FROM t1 ORDER BY a}
+    } {0 {2 12345678901234 2}}
+  }
+  do_test func-4.4 {
+    catchsql {SELECT abs(c) FROM t1 ORDER BY a}
+  } {0 {3 1234567890 5}}
+}
+do_test func-4.4.1 {
+  execsql {SELECT abs(a) FROM t2}
+} {1 {} 345 {} 67890}
+do_test func-4.4.2 {
+  execsql {SELECT abs(t1) FROM tbl1}
+} {0.0 0.0 0.0 0.0 0.0}
+
+ifcapable floatingpoint {
+  do_test func-4.5 {
+    catchsql {SELECT round(a,b,c) FROM t1}
+  } {1 {wrong number of arguments to function round()}}
+  do_test func-4.6 {
+    catchsql {SELECT round(b,2) FROM t1 ORDER BY b}
+  } {0 {-2.0 1.23 2.0}}
+  do_test func-4.7 {
+    catchsql {SELECT round(b,0) FROM t1 ORDER BY a}
+  } {0 {2.0 1.0 -2.0}}
+  do_test func-4.8 {
+    catchsql {SELECT round(c) FROM t1 ORDER BY a}
+  } {0 {3.0 -12346.0 -5.0}}
+  do_test func-4.9 {
+    catchsql {SELECT round(c,a) FROM t1 ORDER BY a}
+  } {0 {3.0 -12345.68 -5.0}}
+  do_test func-4.10 {
+    catchsql {SELECT 'x' || round(c,a) || 'y' FROM t1 ORDER BY a}
+  } {0 {x3.0y x-12345.68y x-5.0y}}
+  do_test func-4.11 {
+    catchsql {SELECT round() FROM t1 ORDER BY a}
+  } {1 {wrong number of arguments to function round()}}
+  do_test func-4.12 {
+    execsql {SELECT coalesce(round(a,2),'nil') FROM t2}
+  } {1.0 nil 345.0 nil 67890.0}
+  do_test func-4.13 {
+    execsql {SELECT round(t1,2) FROM tbl1}
+  } {0.0 0.0 0.0 0.0 0.0}
+  do_test func-4.14 {
+    execsql {SELECT typeof(round(5.1,1));}
+  } {real}
+  do_test func-4.15 {
+    execsql {SELECT typeof(round(5.1));}
+  } {real}
+  do_test func-4.16 {
+    catchsql {SELECT round(b,2.0) FROM t1 ORDER BY b}
+  } {0 {-2.0 1.23 2.0}}
+  # Verify some values reported on the mailing list.
+  for {set i 1} {$i<999} {incr i} {
+    set x1 [expr 40222.5 + $i]
+    set x2 [expr 40223.0 + $i]
+    do_test func-4.17.$i {
+      execsql {SELECT round($x1);}
+    } $x2
+  }
+  for {set i 1} {$i<999} {incr i} {
+    set x1 [expr 40222.05 + $i]
+    set x2 [expr 40222.10 + $i]
+    do_test func-4.18.$i {
+      execsql {SELECT round($x1,1);}
+    } $x2
+  }
+  do_test func-4.20 {
+    execsql {SELECT round(40223.4999999999);}
+  } {40223.0}
+  do_test func-4.21 {
+    execsql {SELECT round(40224.4999999999);}
+  } {40224.0}
+  do_test func-4.22 {
+    execsql {SELECT round(40225.4999999999);}
+  } {40225.0}
+  for {set i 1} {$i<10} {incr i} {
+    do_test func-4.23.$i {
+      execsql {SELECT round(40223.4999999999,$i);}
+    } {40223.5}
+    do_test func-4.24.$i {
+      execsql {SELECT round(40224.4999999999,$i);}
+    } {40224.5}
+    do_test func-4.25.$i {
+      execsql {SELECT round(40225.4999999999,$i);}
+    } {40225.5}
+  }
+  for {set i 10} {$i<32} {incr i} {
+    do_test func-4.26.$i {
+      execsql {SELECT round(40223.4999999999,$i);}
+    } {40223.4999999999}
+    do_test func-4.27.$i {
+      execsql {SELECT round(40224.4999999999,$i);}
+    } {40224.4999999999}
+    do_test func-4.28.$i {
+      execsql {SELECT round(40225.4999999999,$i);}
+    } {40225.4999999999}
+  }
+  do_test func-4.29 {
+    execsql {SELECT round(1234567890.5);}
+  } {1234567891.0}
+  do_test func-4.30 {
+    execsql {SELECT round(12345678901.5);}
+  } {12345678902.0}
+  do_test func-4.31 {
+    execsql {SELECT round(123456789012.5);}
+  } {123456789013.0}
+  do_test func-4.32 {
+    execsql {SELECT round(1234567890123.5);}
+  } {1234567890124.0}
+  do_test func-4.33 {
+    execsql {SELECT round(12345678901234.5);}
+  } {12345678901235.0}
+  do_test func-4.34 {
+    execsql {SELECT round(1234567890123.35,1);}
+  } {1234567890123.4}
+  do_test func-4.35 {
+    execsql {SELECT round(1234567890123.445,2);}
+  } {1234567890123.45}
+  do_test func-4.36 {
+    execsql {SELECT round(99999999999994.5);}
+  } {99999999999995.0}
+  do_test func-4.37 {
+    execsql {SELECT round(9999999999999.55,1);}
+  } {9999999999999.6}
+  do_test func-4.38 {
+    execsql {SELECT round(9999999999999.556,2);}
+  } {9999999999999.56}
+  do_test func-4.39 {
+    string tolower [db eval {SELECT round(1e500), round(-1e500);}]
+  } {inf -inf}
+  do_execsql_test func-4.40 {
+    SELECT round(123.456 , 4294967297);
+  } {123.456}
+}
+
+# Test the upper() and lower() functions
+#
+do_test func-5.1 {
+  execsql {SELECT upper(t1) FROM tbl1}
+} {THIS PROGRAM IS FREE SOFTWARE}
+do_test func-5.2 {
+  execsql {SELECT lower(upper(t1)) FROM tbl1}
+} {this program is free software}
+do_test func-5.3 {
+  execsql {SELECT upper(a), lower(a) FROM t2}
+} {1 1 {} {} 345 345 {} {} 67890 67890}
+ifcapable !icu {
+  do_test func-5.4 {
+    catchsql {SELECT upper(a,5) FROM t2}
+  } {1 {wrong number of arguments to function upper()}}
+}
+do_test func-5.5 {
+  catchsql {SELECT upper(*) FROM t2}
+} {1 {wrong number of arguments to function upper()}}
+
+# Test the coalesce() and nullif() functions
+#
+do_test func-6.1 {
+  execsql {SELECT coalesce(a,'xyz') FROM t2}
+} {1 xyz 345 xyz 67890}
+do_test func-6.2 {
+  execsql {SELECT coalesce(upper(a),'nil') FROM t2}
+} {1 nil 345 nil 67890}
+do_test func-6.3 {
+  execsql {SELECT coalesce(nullif(1,1),'nil')}
+} {nil}
+do_test func-6.4 {
+  execsql {SELECT coalesce(nullif(1,2),'nil')}
+} {1}
+do_test func-6.5 {
+  execsql {SELECT coalesce(nullif(1,NULL),'nil')}
+} {1}
+
+
+# Test the last_insert_rowid() function
+#
+do_test func-7.1 {
+  execsql {SELECT last_insert_rowid()}
+} [db last_insert_rowid]
+
+# Tests for aggregate functions and how they handle NULLs.
+#
+ifcapable floatingpoint {
+  do_test func-8.1 {
+    ifcapable explain {
+      execsql {EXPLAIN SELECT sum(a) FROM t2;}
+    }
+    execsql {
+      SELECT sum(a), count(a), round(avg(a),2), min(a), max(a), count(*) FROM t2;
+    }
+  } {68236 3 22745.33 1 67890 5}
+}
+ifcapable !floatingpoint {
+  do_test func-8.1 {
+    ifcapable explain {
+      execsql {EXPLAIN SELECT sum(a) FROM t2;}
+    }
+    execsql {
+      SELECT sum(a), count(a), avg(a), min(a), max(a), count(*) FROM t2;
+    }
+  } {68236 3 22745.0 1 67890 5}
+}
+do_test func-8.2 {
+  execsql {
+    SELECT max('z+'||a||'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOP') FROM t2;
+  }
+} {z+67890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOP}
+
+ifcapable tempdb {
+  do_test func-8.3 {
+    execsql {
+      CREATE TEMP TABLE t3 AS SELECT a FROM t2 ORDER BY a DESC;
+      SELECT min('z+'||a||'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOP') FROM t3;
+    }
+  } {z+1abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOP}
+} else {
+  do_test func-8.3 {
+    execsql {
+      CREATE TABLE t3 AS SELECT a FROM t2 ORDER BY a DESC;
+      SELECT min('z+'||a||'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOP') FROM t3;
+    }
+  } {z+1abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOP}
+}
+do_test func-8.4 {
+  execsql {
+    SELECT max('z+'||a||'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOP') FROM t3;
+  }
+} {z+67890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOP}
+ifcapable compound {
+  do_test func-8.5 {
+    execsql {
+      SELECT sum(x) FROM (SELECT '9223372036' || '854775807' AS x
+                          UNION ALL SELECT -9223372036854775807)
+    }
+  } {0}
+  do_test func-8.6 {
+    execsql {
+      SELECT typeof(sum(x)) FROM (SELECT '9223372036' || '854775807' AS x
+                          UNION ALL SELECT -9223372036854775807)
+    }
+  } {integer}
+  do_test func-8.7 {
+    execsql {
+      SELECT typeof(sum(x)) FROM (SELECT '9223372036' || '854775808' AS x
+                          UNION ALL SELECT -9223372036854775807)
+    }
+  } {real}
+ifcapable floatingpoint {
+  do_test func-8.8 {
+    execsql {
+      SELECT sum(x)>0.0 FROM (SELECT '9223372036' || '854775808' AS x
+                          UNION ALL SELECT -9223372036850000000)
+    }
+  } {1}
+}
+ifcapable !floatingpoint {
+  do_test func-8.8 {
+    execsql {
+      SELECT sum(x)>0 FROM (SELECT '9223372036' || '854775808' AS x
+                          UNION ALL SELECT -9223372036850000000)
+    }
+  } {1}
+}
+}
+
+# How do you test the random() function in a meaningful, deterministic way?
+#
+do_test func-9.1 {
+  execsql {
+    SELECT random() is not null;
+  }
+} {1}
+do_test func-9.2 {
+  execsql {
+    SELECT typeof(random());
+  }
+} {integer}
+do_test func-9.3 {
+  execsql {
+    SELECT randomblob(32) is not null;
+  }
+} {1}
+do_test func-9.4 {
+  execsql {
+    SELECT typeof(randomblob(32));
+  }
+} {blob}
+do_test func-9.5 {
+  execsql {
+    SELECT length(randomblob(32)), length(randomblob(-5)),
+           length(randomblob(2000))
+  }
+} {32 1 2000}
+
+# The "hex()" function was added in order to be able to render blobs
+# generated by randomblob().  So this seems like a good place to test
+# hex().
+#
+ifcapable bloblit {
+  do_test func-9.10 {
+    execsql {SELECT hex(x'00112233445566778899aAbBcCdDeEfF')}
+  } {00112233445566778899AABBCCDDEEFF}
+}
+set encoding [db one {PRAGMA encoding}]
+if {$encoding=="UTF-16le"} {
+  do_test func-9.11-utf16le {
+    execsql {SELECT hex(replace('abcdefg','ef','12'))}
+  } {6100620063006400310032006700}
+  do_test func-9.12-utf16le {
+    execsql {SELECT hex(replace('abcdefg','','12'))}
+  } {6100620063006400650066006700}
+  do_test func-9.13-utf16le {
+    execsql {SELECT hex(replace('aabcdefg','a','aaa'))}
+  } {610061006100610061006100620063006400650066006700}
+} elseif {$encoding=="UTF-8"} {
+  do_test func-9.11-utf8 {
+    execsql {SELECT hex(replace('abcdefg','ef','12'))}
+  } {61626364313267}
+  do_test func-9.12-utf8 {
+    execsql {SELECT hex(replace('abcdefg','','12'))}
+  } {61626364656667}
+  do_test func-9.13-utf8 {
+    execsql {SELECT hex(replace('aabcdefg','a','aaa'))}
+  } {616161616161626364656667}
+}
+do_execsql_test func-9.14 {
+  WITH RECURSIVE c(x) AS (
+     VALUES(1)
+     UNION ALL
+     SELECT x+1 FROM c WHERE x<1040
+  )
+  SELECT 
+    count(*),
+    sum(length(replace(printf('abc%.*cxyz',x,'m'),'m','nnnn'))-(6+x*4))
+  FROM c;
+} {1040 0}
+  
+# Use the "sqlite_register_test_function" TCL command which is part of
+# the text fixture in order to verify correct operation of some of
+# the user-defined SQL function APIs that are not used by the built-in
+# functions.
+#
+set ::DB [sqlite3_connection_pointer db]
+sqlite_register_test_function $::DB testfunc
+do_test func-10.1 {
+  catchsql {
+    SELECT testfunc(NULL,NULL);
+  }
+} {1 {first argument should be one of: int int64 string double null value}}
+do_test func-10.2 {
+  execsql {
+    SELECT testfunc(
+     'string', 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ',
+     'int', 1234
+    );
+  }
+} {1234}
+do_test func-10.3 {
+  execsql {
+    SELECT testfunc(
+     'string', 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ',
+     'string', NULL
+    );
+  }
+} {{}}
+
+ifcapable floatingpoint {
+  do_test func-10.4 {
+    execsql {
+      SELECT testfunc(
+       'string', 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ',
+       'double', 1.234
+      );
+    }
+  } {1.234}
+  do_test func-10.5 {
+    execsql {
+      SELECT testfunc(
+       'string', 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ',
+       'int', 1234,
+       'string', 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ',
+       'string', NULL,
+       'string', 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ',
+       'double', 1.234,
+       'string', 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ',
+       'int', 1234,
+       'string', 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ',
+       'string', NULL,
+       'string', 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ',
+       'double', 1.234
+      );
+    }
+  } {1.234}
+}
+
+# Test the built-in sqlite_version(*) SQL function.
+#
+do_test func-11.1 {
+  execsql {
+    SELECT sqlite_version(*);
+  }
+} [sqlite3 -version]
+
+# Test that destructors passed to sqlite3 by calls to sqlite3_result_text()
+# etc. are called. These tests use two special user-defined functions
+# (implemented in func.c) only available in test builds. 
+#
+# Function test_destructor() takes one argument and returns a copy of the
+# text form of that argument. A destructor is associated with the return
+# value. Function test_destructor_count() returns the number of outstanding
+# destructor calls for values returned by test_destructor().
+#
+if {[db eval {PRAGMA encoding}]=="UTF-8"} {
+  do_test func-12.1-utf8 {
+    execsql {
+      SELECT test_destructor('hello world'), test_destructor_count();
+    }
+  } {{hello world} 1}
+} else {
+    ifcapable {utf16} {
+      do_test func-12.1-utf16 {
+        execsql {
+          SELECT test_destructor16('hello world'), test_destructor_count();
+        }
+      } {{hello world} 1}
+    }
+}
+do_test func-12.2 {
+  execsql {
+    SELECT test_destructor_count();
+  }
+} {0}
+do_test func-12.3 {
+  execsql {
+    SELECT test_destructor('hello')||' world'
+  }
+} {{hello world}}
+do_test func-12.4 {
+  execsql {
+    SELECT test_destructor_count();
+  }
+} {0}
+do_test func-12.5 {
+  execsql {
+    CREATE TABLE t4(x);
+    INSERT INTO t4 VALUES(test_destructor('hello'));
+    INSERT INTO t4 VALUES(test_destructor('world'));
+    SELECT min(test_destructor(x)), max(test_destructor(x)) FROM t4;
+  }
+} {hello world}
+do_test func-12.6 {
+  execsql {
+    SELECT test_destructor_count();
+  }
+} {0}
+do_test func-12.7 {
+  execsql {
+    DROP TABLE t4;
+  }
+} {}
+
+
+# Test that the auxdata API for scalar functions works. This test uses
+# a special user-defined function only available in test builds,
+# test_auxdata(). Function test_auxdata() takes any number of arguments.
+do_test func-13.1 {
+  execsql {
+    SELECT test_auxdata('hello world');
+  }
+} {0}
+
+do_test func-13.2 {
+  execsql {
+    CREATE TABLE t4(a, b);
+    INSERT INTO t4 VALUES('abc', 'def');
+    INSERT INTO t4 VALUES('ghi', 'jkl');
+  }
+} {}
+do_test func-13.3 {
+  execsql {
+    SELECT test_auxdata('hello world') FROM t4;
+  }
+} {0 1}
+do_test func-13.4 {
+  execsql {
+    SELECT test_auxdata('hello world', 123) FROM t4;
+  }
+} {{0 0} {1 1}}
+do_test func-13.5 {
+  execsql {
+    SELECT test_auxdata('hello world', a) FROM t4;
+  }
+} {{0 0} {1 0}}
+do_test func-13.6 {
+  execsql {
+    SELECT test_auxdata('hello'||'world', a) FROM t4;
+  }
+} {{0 0} {1 0}}
+
+# Test that auxilary data is preserved between calls for SQL variables.
+do_test func-13.7 {
+  set DB [sqlite3_connection_pointer db]
+  set sql "SELECT test_auxdata( ? , a ) FROM t4;"
+  set STMT [sqlite3_prepare $DB $sql -1 TAIL]
+  sqlite3_bind_text $STMT 1 hello\000 -1
+  set res [list]
+  while { "SQLITE_ROW"==[sqlite3_step $STMT] } {
+    lappend res [sqlite3_column_text $STMT 0]
+  }
+  lappend res [sqlite3_finalize $STMT]
+} {{0 0} {1 0} SQLITE_OK}
+
+# Test that auxiliary data is discarded when a statement is reset.
+do_execsql_test 13.8.1 {
+  SELECT test_auxdata('constant') FROM t4;
+} {0 1}
+do_execsql_test 13.8.2 {
+  SELECT test_auxdata('constant') FROM t4;
+} {0 1}
+db cache flush
+do_execsql_test 13.8.3 {
+  SELECT test_auxdata('constant') FROM t4;
+} {0 1}
+set V "one"
+do_execsql_test 13.8.4 {
+  SELECT test_auxdata($V), $V FROM t4;
+} {0 one 1 one}
+set V "two"
+do_execsql_test 13.8.5 {
+  SELECT test_auxdata($V), $V FROM t4;
+} {0 two 1 two}
+db cache flush
+set V "three"
+do_execsql_test 13.8.6 {
+  SELECT test_auxdata($V), $V FROM t4;
+} {0 three 1 three}
+
+
+# Make sure that a function with a very long name is rejected
+do_test func-14.1 {
+  catch {
+    db function [string repeat X 254] {return "hello"}
+  } 
+} {0}
+do_test func-14.2 {
+  catch {
+    db function [string repeat X 256] {return "hello"}
+  }
+} {1}
+
+do_test func-15.1 {
+  catchsql {select test_error(NULL)}
+} {1 {}}
+do_test func-15.2 {
+  catchsql {select test_error('this is the error message')}
+} {1 {this is the error message}}
+do_test func-15.3 {
+  catchsql {select test_error('this is the error message',12)}
+} {1 {this is the error message}}
+do_test func-15.4 {
+  db errorcode
+} {12}
+
+# Test the quote function for BLOB and NULL values.
+do_test func-16.1 {
+  execsql {
+    CREATE TABLE tbl2(a, b);
+  }
+  set STMT [sqlite3_prepare $::DB "INSERT INTO tbl2 VALUES(?, ?)" -1 TAIL]
+  sqlite3_bind_blob $::STMT 1 abc 3
+  sqlite3_step $::STMT
+  sqlite3_finalize $::STMT
+  execsql {
+    SELECT quote(a), quote(b) FROM tbl2;
+  }
+} {X'616263' NULL}
+
+# Test the quote function for +Inf and -Inf
+do_execsql_test func-16.2 {
+  SELECT quote(4.2e+859), quote(-7.8e+904);
+} {9.0e+999 -9.0e+999}
+
+# Correctly handle function error messages that include %.  Ticket #1354
+#
+do_test func-17.1 {
+  proc testfunc1 args {error "Error %d with %s percents %p"}
+  db function testfunc1 ::testfunc1
+  catchsql {
+    SELECT testfunc1(1,2,3);
+  }
+} {1 {Error %d with %s percents %p}}
+
+# The SUM function should return integer results when all inputs are integer.
+#
+do_test func-18.1 {
+  execsql {
+    CREATE TABLE t5(x);
+    INSERT INTO t5 VALUES(1);
+    INSERT INTO t5 VALUES(-99);
+    INSERT INTO t5 VALUES(10000);
+    SELECT sum(x) FROM t5;
+  }
+} {9902}
+ifcapable floatingpoint {
+  do_test func-18.2 {
+    execsql {
+      INSERT INTO t5 VALUES(0.0);
+      SELECT sum(x) FROM t5;
+    }
+  } {9902.0}
+}
+
+# The sum of nothing is NULL.  But the sum of all NULLs is NULL.
+#
+# The TOTAL of nothing is 0.0.
+#
+do_test func-18.3 {
+  execsql {
+    DELETE FROM t5;
+    SELECT sum(x), total(x) FROM t5;
+  }
+} {{} 0.0}
+do_test func-18.4 {
+  execsql {
+    INSERT INTO t5 VALUES(NULL);
+    SELECT sum(x), total(x) FROM t5
+  }
+} {{} 0.0}
+do_test func-18.5 {
+  execsql {
+    INSERT INTO t5 VALUES(NULL);
+    SELECT sum(x), total(x) FROM t5
+  }
+} {{} 0.0}
+do_test func-18.6 {
+  execsql {
+    INSERT INTO t5 VALUES(123);
+    SELECT sum(x), total(x) FROM t5
+  }
+} {123 123.0}
+
+# Ticket #1664, #1669, #1670, #1674: An integer overflow on SUM causes
+# an error. The non-standard TOTAL() function continues to give a helpful
+# result.
+#
+do_test func-18.10 {
+  execsql {
+    CREATE TABLE t6(x INTEGER);
+    INSERT INTO t6 VALUES(1);
+    INSERT INTO t6 VALUES(1<<62);
+    SELECT sum(x) - ((1<<62)+1) from t6;
+  }
+} 0
+do_test func-18.11 {
+  execsql {
+    SELECT typeof(sum(x)) FROM t6
+  }
+} integer
+ifcapable floatingpoint {
+  do_catchsql_test func-18.12 {
+    INSERT INTO t6 VALUES(1<<62);
+    SELECT sum(x) - ((1<<62)*2.0+1) from t6;
+  } {1 {integer overflow}}
+  do_catchsql_test func-18.13 {
+    SELECT total(x) - ((1<<62)*2.0+1) FROM t6
+  } {0 0.0}
+}
+if {[working_64bit_int]} {
+  do_test func-18.14 {
+    execsql {
+      SELECT sum(-9223372036854775805);
+    }
+  } -9223372036854775805
+}
+ifcapable compound&&subquery {
+
+do_test func-18.15 {
+  catchsql {
+    SELECT sum(x) FROM 
+       (SELECT 9223372036854775807 AS x UNION ALL
+        SELECT 10 AS x);
+  }
+} {1 {integer overflow}}
+if {[working_64bit_int]} {
+  do_test func-18.16 {
+    catchsql {
+      SELECT sum(x) FROM 
+         (SELECT 9223372036854775807 AS x UNION ALL
+          SELECT -10 AS x);
+    }
+  } {0 9223372036854775797}
+  do_test func-18.17 {
+    catchsql {
+      SELECT sum(x) FROM 
+         (SELECT -9223372036854775807 AS x UNION ALL
+          SELECT 10 AS x);
+    }
+  } {0 -9223372036854775797}
+}
+do_test func-18.18 {
+  catchsql {
+    SELECT sum(x) FROM 
+       (SELECT -9223372036854775807 AS x UNION ALL
+        SELECT -10 AS x);
+  }
+} {1 {integer overflow}}
+do_test func-18.19 {
+  catchsql {
+    SELECT sum(x) FROM (SELECT 9 AS x UNION ALL SELECT -10 AS x);
+  }
+} {0 -1}
+do_test func-18.20 {
+  catchsql {
+    SELECT sum(x) FROM (SELECT -9 AS x UNION ALL SELECT 10 AS x);
+  }
+} {0 1}
+do_test func-18.21 {
+  catchsql {
+    SELECT sum(x) FROM (SELECT -10 AS x UNION ALL SELECT 9 AS x);
+  }
+} {0 -1}
+do_test func-18.22 {
+  catchsql {
+    SELECT sum(x) FROM (SELECT 10 AS x UNION ALL SELECT -9 AS x);
+  }
+} {0 1}
+
+} ;# ifcapable compound&&subquery
+
+# Integer overflow on abs()
+#
+if {[working_64bit_int]} {
+  do_test func-18.31 {
+    catchsql {
+      SELECT abs(-9223372036854775807);
+    }
+  } {0 9223372036854775807}
+}
+do_test func-18.32 {
+  catchsql {
+    SELECT abs(-9223372036854775807-1);
+  }
+} {1 {integer overflow}}
+
+# The MATCH function exists but is only a stub and always throws an error.
+#
+do_test func-19.1 {
+  execsql {
+    SELECT match(a,b) FROM t1 WHERE 0;
+  }
+} {}
+do_test func-19.2 {
+  catchsql {
+    SELECT 'abc' MATCH 'xyz';
+  }
+} {1 {unable to use function MATCH in the requested context}}
+do_test func-19.3 {
+  catchsql {
+    SELECT 'abc' NOT MATCH 'xyz';
+  }
+} {1 {unable to use function MATCH in the requested context}}
+do_test func-19.4 {
+  catchsql {
+    SELECT match(1,2,3);
+  }
+} {1 {wrong number of arguments to function match()}}
+
+# Soundex tests.
+#
+if {![catch {db eval {SELECT soundex('hello')}}]} {
+  set i 0
+  foreach {name sdx} {
+    euler        E460
+    EULER        E460
+    Euler        E460
+    ellery       E460
+    gauss        G200
+    ghosh        G200
+    hilbert      H416
+    Heilbronn    H416
+    knuth        K530
+    kant         K530
+    Lloyd        L300
+    LADD         L300
+    Lukasiewicz  L222
+    Lissajous    L222
+    A            A000
+    12345        ?000
+  } {
+    incr i
+    do_test func-20.$i {
+      execsql {SELECT soundex($name)}
+    } $sdx
+  }
+}
+
+# Tests of the REPLACE function.
+#
+do_test func-21.1 {
+  catchsql {
+    SELECT replace(1,2);
+  }
+} {1 {wrong number of arguments to function replace()}}
+do_test func-21.2 {
+  catchsql {
+    SELECT replace(1,2,3,4);
+  }
+} {1 {wrong number of arguments to function replace()}}
+do_test func-21.3 {
+  execsql {
+    SELECT typeof(replace('This is the main test string', NULL, 'ALT'));
+  }
+} {null}
+do_test func-21.4 {
+  execsql {
+    SELECT typeof(replace(NULL, 'main', 'ALT'));
+  }
+} {null}
+do_test func-21.5 {
+  execsql {
+    SELECT typeof(replace('This is the main test string', 'main', NULL));
+  }
+} {null}
+do_test func-21.6 {
+  execsql {
+    SELECT replace('This is the main test string', 'main', 'ALT');
+  }
+} {{This is the ALT test string}}
+do_test func-21.7 {
+  execsql {
+    SELECT replace('This is the main test string', 'main', 'larger-main');
+  }
+} {{This is the larger-main test string}}
+do_test func-21.8 {
+  execsql {
+    SELECT replace('aaaaaaa', 'a', '0123456789');
+  }
+} {0123456789012345678901234567890123456789012345678901234567890123456789}
+do_execsql_test func-21.9 {
+  SELECT typeof(replace(1,'',0));
+} {text}
+
+ifcapable tclvar {
+  do_test func-21.9 {
+    # Attempt to exploit a buffer-overflow that at one time existed 
+    # in the REPLACE function. 
+    set ::str "[string repeat A 29998]CC[string repeat A 35537]"
+    set ::rep [string repeat B 65536]
+    execsql {
+      SELECT LENGTH(REPLACE($::str, 'C', $::rep));
+    }
+  } [expr 29998 + 2*65536 + 35537]
+}
+
+# Tests for the TRIM, LTRIM and RTRIM functions.
+#
+do_test func-22.1 {
+  catchsql {SELECT trim(1,2,3)}
+} {1 {wrong number of arguments to function trim()}}
+do_test func-22.2 {
+  catchsql {SELECT ltrim(1,2,3)}
+} {1 {wrong number of arguments to function ltrim()}}
+do_test func-22.3 {
+  catchsql {SELECT rtrim(1,2,3)}
+} {1 {wrong number of arguments to function rtrim()}}
+do_test func-22.4 {
+  execsql {SELECT trim('  hi  ');}
+} {hi}
+do_test func-22.5 {
+  execsql {SELECT ltrim('  hi  ');}
+} {{hi  }}
+do_test func-22.6 {
+  execsql {SELECT rtrim('  hi  ');}
+} {{  hi}}
+do_test func-22.7 {
+  execsql {SELECT trim('  hi  ','xyz');}
+} {{  hi  }}
+do_test func-22.8 {
+  execsql {SELECT ltrim('  hi  ','xyz');}
+} {{  hi  }}
+do_test func-22.9 {
+  execsql {SELECT rtrim('  hi  ','xyz');}
+} {{  hi  }}
+do_test func-22.10 {
+  execsql {SELECT trim('xyxzy  hi  zzzy','xyz');}
+} {{  hi  }}
+do_test func-22.11 {
+  execsql {SELECT ltrim('xyxzy  hi  zzzy','xyz');}
+} {{  hi  zzzy}}
+do_test func-22.12 {
+  execsql {SELECT rtrim('xyxzy  hi  zzzy','xyz');}
+} {{xyxzy  hi  }}
+do_test func-22.13 {
+  execsql {SELECT trim('  hi  ','');}
+} {{  hi  }}
+if {[db one {PRAGMA encoding}]=="UTF-8"} {
+  do_test func-22.14 {
+    execsql {SELECT hex(trim(x'c280e1bfbff48fbfbf6869',x'6162e1bfbfc280'))}
+  } {F48FBFBF6869}
+  do_test func-22.15 {
+    execsql {SELECT hex(trim(x'6869c280e1bfbff48fbfbf61',
+                             x'6162e1bfbfc280f48fbfbf'))}
+  } {6869}
+  do_test func-22.16 {
+    execsql {SELECT hex(trim(x'ceb1ceb2ceb3',x'ceb1'));}
+  } {CEB2CEB3}
+}
+do_test func-22.20 {
+  execsql {SELECT typeof(trim(NULL));}
+} {null}
+do_test func-22.21 {
+  execsql {SELECT typeof(trim(NULL,'xyz'));}
+} {null}
+do_test func-22.22 {
+  execsql {SELECT typeof(trim('hello',NULL));}
+} {null}
+
+# 2021-06-15 - infinite loop due to unsigned character counter
+# overflow, reported by Zimuzo Ezeozue
+#
+do_execsql_test func-22.23 {
+  SELECT trim('xyzzy',x'c0808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080');
+} {xyzzy}
+
+# This is to test the deprecated sqlite3_aggregate_count() API.
+#
+ifcapable deprecated {
+  do_test func-23.1 {
+    sqlite3_create_aggregate db
+    execsql {
+      SELECT legacy_count() FROM t6;
+    }
+  } {3}
+}
+
+# The group_concat() and string_agg() functions.
+#
+do_test func-24.1 {
+  execsql {
+    SELECT group_concat(t1), string_agg(t1,',') FROM tbl1
+  }
+} {this,program,is,free,software this,program,is,free,software}
+do_test func-24.2 {
+  execsql {
+    SELECT group_concat(t1,' '), string_agg(t1,' ') FROM tbl1
+  }
+} {{this program is free software} {this program is free software}}
+do_test func-24.3 {
+  execsql {
+    SELECT group_concat(t1,' ' || rowid || ' ') FROM tbl1
+  }
+} {{this 2 program 3 is 4 free 5 software}}
+do_test func-24.4 {
+  execsql {
+    SELECT group_concat(NULL,t1) FROM tbl1
+  }
+} {{}}
+do_test func-24.5 {
+  execsql {
+    SELECT group_concat(t1,NULL), string_agg(t1,NULL) FROM tbl1
+  }
+} {thisprogramisfreesoftware thisprogramisfreesoftware}
+do_test func-24.6 {
+  execsql {
+    SELECT 'BEGIN-'||group_concat(t1) FROM tbl1
+  }
+} {BEGIN-this,program,is,free,software}
+
+# Ticket #3179:  Make sure aggregate functions can take many arguments.
+# None of the built-in aggregates do this, so use the md5sum() from the
+# test extensions.
+#
+unset -nocomplain midargs
+set midargs {}
+unset -nocomplain midres
+set midres {}
+unset -nocomplain result
+set limit [sqlite3_limit db SQLITE_LIMIT_FUNCTION_ARG -1]
+if {$limit>400} {set limit 400}
+for {set i 1} {$i<$limit} {incr i} {
+  append midargs ,'/$i'
+  append midres /$i
+  set result [md5 \
+     "this${midres}program${midres}is${midres}free${midres}software${midres}"]
+  set sql "SELECT md5sum(t1$midargs) FROM tbl1"
+  do_test func-24.7.$i {
+     db eval $::sql
+  } $result
+}
+
+# Ticket #3806.  If the initial string in a group_concat is an empty
+# string, the separator that follows should still be present.
+#
+do_test func-24.8 {
+  execsql {
+    SELECT group_concat(CASE t1 WHEN 'this' THEN '' ELSE t1 END) FROM tbl1
+  }
+} {,program,is,free,software}
+do_test func-24.9 {
+  execsql {
+    SELECT group_concat(CASE WHEN t1!='software' THEN '' ELSE t1 END) FROM tbl1
+  }
+} {,,,,software}
+
+# Ticket #3923.  Initial empty strings have a separator.  But initial
+# NULLs do not.
+#
+do_test func-24.10 {
+  execsql {
+    SELECT group_concat(CASE t1 WHEN 'this' THEN null ELSE t1 END) FROM tbl1
+  }
+} {program,is,free,software}
+do_test func-24.11 {
+  execsql {
+   SELECT group_concat(CASE WHEN t1!='software' THEN null ELSE t1 END) FROM tbl1
+  }
+} {software}
+do_test func-24.12 {
+  execsql {
+    SELECT group_concat(CASE t1 WHEN 'this' THEN ''
+                          WHEN 'program' THEN null ELSE t1 END) FROM tbl1
+  }
+} {,is,free,software}
+# Tests to verify ticket http://www.sqlite.org/src/tktview/55746f9e65f8587c0
+do_test func-24.13 {
+  execsql {
+    SELECT typeof(group_concat(x)) FROM (SELECT '' AS x);
+  }
+} {text}
+do_test func-24.14 {
+  execsql {
+    SELECT typeof(group_concat(x,''))
+      FROM (SELECT '' AS x UNION ALL SELECT '');
+  }
+} {text}
+
+
+# Use the test_isolation function to make sure that type conversions
+# on function arguments do not effect subsequent arguments.
+#
+do_test func-25.1 {
+  execsql {SELECT test_isolation(t1,t1) FROM tbl1}
+} {this program is free software}
+
+# Try to misuse the sqlite3_create_function() interface.  Verify that
+# errors are returned.
+#
+do_test func-26.1 {
+  abuse_create_function db
+} {}
+
+# The previous test (func-26.1) registered a function with a very long
+# function name that takes many arguments and always returns NULL.  Verify
+# that this function works correctly.
+#
+do_test func-26.2 {
+  set a {}
+  set limit $::SQLITE_MAX_FUNCTION_ARG
+  for {set i 1} {$i<=$limit} {incr i} {
+    lappend a $i
+  }
+  db eval "
+     SELECT nullx_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789([join $a ,]);
+  "
+} {{}}
+do_test func-26.3 {
+  set a {}
+  for {set i 1} {$i<=$::SQLITE_MAX_FUNCTION_ARG+1} {incr i} {
+    lappend a $i
+  }
+  catchsql "
+     SELECT nullx_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789([join $a ,]);
+  "
+} {1 {too many arguments on function nullx_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789}}
+do_test func-26.4 {
+  set a {}
+  set limit [expr {$::SQLITE_MAX_FUNCTION_ARG-1}]
+  for {set i 1} {$i<=$limit} {incr i} {
+    lappend a $i
+  }
+  catchsql "
+     SELECT nullx_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789([join $a ,]);
+  "
+} {1 {wrong number of arguments to function nullx_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789()}}
+do_test func-26.5 {
+  catchsql "
+     SELECT nullx_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_12345678a(0);
+  "
+} {1 {no such function: nullx_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_12345678a}}
+do_test func-26.6 {
+  catchsql "
+     SELECT nullx_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789a(0);
+  "
+} {1 {no such function: nullx_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789a}}
+
+do_test func-27.1 {
+  catchsql {SELECT coalesce()}
+} {1 {wrong number of arguments to function coalesce()}}
+do_test func-27.2 {
+  catchsql {SELECT coalesce(1)}
+} {1 {wrong number of arguments to function coalesce()}}
+do_test func-27.3 {
+  catchsql {SELECT coalesce(1,2)}
+} {0 1}
+
+# Ticket 2d401a94287b5
+# Unknown function in a DEFAULT expression causes a segfault.
+#
+do_test func-28.1 {
+  db eval {
+    CREATE TABLE t28(x, y DEFAULT(nosuchfunc(1)));
+  }
+  catchsql {
+    INSERT INTO t28(x) VALUES(1);
+  }
+} {1 {unknown function: nosuchfunc()}}
+
+# Verify that the length() and typeof() functions do not actually load
+# the content of their argument.
+#
+do_test func-29.1 {
+  db eval {
+    CREATE TABLE t29(id INTEGER PRIMARY KEY, x, y);
+    INSERT INTO t29 VALUES(1, 2, 3), (2, NULL, 4), (3, 4.5, 5);
+    INSERT INTO t29 VALUES(4, randomblob(1000000), 6);
+    INSERT INTO t29 VALUES(5, 'hello', 7);
+  }
+  db close
+  sqlite3 db test.db
+  sqlite3_db_status db CACHE_MISS 1
+  db eval {SELECT typeof(x), length(x), typeof(y) FROM t29 ORDER BY id}
+} {integer 1 integer null {} integer real 3 integer blob 1000000 integer text 5 integer}
+do_test func-29.2 {
+  set x [lindex [sqlite3_db_status db CACHE_MISS 1] 1]
+  if {$x<5} {set x 1}
+  set x
+} {1}
+do_test func-29.3 {
+  db close
+  sqlite3 db test.db
+  sqlite3_db_status db CACHE_MISS 1
+  db eval {SELECT typeof(+x) FROM t29 ORDER BY id}
+} {integer null real blob text}
+if {[permutation] != "mmap"} {
+  ifcapable !direct_read {
+    do_test func-29.4 {
+      set x [lindex [sqlite3_db_status db CACHE_MISS 1] 1]
+      if {$x>100} {set x many}
+      set x
+    } {many}
+  }
+}
+do_test func-29.5 {
+  db close
+  sqlite3 db test.db
+  sqlite3_db_status db CACHE_MISS 1
+  db eval {SELECT sum(length(x)) FROM t29}
+} {1000009}
+do_test func-29.6 {
+  set x [lindex [sqlite3_db_status db CACHE_MISS 1] 1]
+  if {$x<5} {set x 1}
+  set x
+} {1}
+
+# The OP_Column opcode has an optimization that avoids loading content
+# for fields with content-length=0 when the content offset is on an overflow
+# page.  Make sure the optimization works.
+#
+do_execsql_test func-29.10 {
+  CREATE TABLE t29b(a,b,c,d,e,f,g,h,i);
+  INSERT INTO t29b 
+   VALUES(1, hex(randomblob(2000)), null, 0, 1, '', zeroblob(0),'x',x'01');
+  SELECT typeof(c), typeof(d), typeof(e), typeof(f),
+         typeof(g), typeof(h), typeof(i) FROM t29b;
+} {null integer integer text blob text blob}
+do_execsql_test func-29.11 {
+  SELECT length(f), length(g), length(h), length(i) FROM t29b;
+} {0 0 1 1}
+do_execsql_test func-29.12 {
+  SELECT quote(f), quote(g), quote(h), quote(i) FROM t29b;
+} {'' X'' 'x' X'01'}
+
+# EVIDENCE-OF: R-29701-50711 The unicode(X) function returns the numeric
+# unicode code point corresponding to the first character of the string
+# X.
+#
+# EVIDENCE-OF: R-55469-62130 The char(X1,X2,...,XN) function returns a
+# string composed of characters having the unicode code point values of
+# integers X1 through XN, respectively.
+#
+do_execsql_test func-30.1 {SELECT unicode('$');} 36
+do_execsql_test func-30.2 [subst {SELECT unicode('\u00A2');}] 162
+do_execsql_test func-30.3 [subst {SELECT unicode('\u20AC');}] 8364
+do_execsql_test func-30.4 {SELECT char(36,162,8364);} [subst {$\u00A2\u20AC}]
+
+for {set i 1} {$i<0xd800} {incr i 13} {
+  do_execsql_test func-30.5.$i {SELECT unicode(char($i))} $i
+}
+for {set i 57344} {$i<=0xfffd} {incr i 17} {
+  if {$i==0xfeff} continue
+  do_execsql_test func-30.5.$i {SELECT unicode(char($i))} $i
+}
+for {set i 65536} {$i<=0x10ffff} {incr i 139} {
+  do_execsql_test func-30.5.$i {SELECT unicode(char($i))} $i
+}
+
+# Test char().
+#
+do_execsql_test func-31.1 { 
+  SELECT char(), length(char()), typeof(char()) 
+} {{} 0 text}
+
+# sqlite3_value_frombind()
+#
+do_execsql_test func-32.100 {
+  SELECT test_frombind(1,2,3,4);
+} {0}
+do_execsql_test func-32.110 {
+  SELECT test_frombind(1,2,?,4);
+} {4}
+do_execsql_test func-32.120 {
+  SELECT test_frombind(1,(?),4,?+7);
+} {2}
+do_execsql_test func-32.130 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a,b,c,e,f);
+  INSERT INTO t1 VALUES(1,2.5,'xyz',x'e0c1b2a3',null);
+  SELECT test_frombind(a,b,c,e,f,$xyz) FROM t1;
+} {32}
+do_execsql_test func-32.140 {
+  SELECT test_frombind(a,b,c,e,f,$xyz+f) FROM t1;
+} {0}
+do_execsql_test func-32.150 {
+  SELECT test_frombind(x.a,y.b,x.c,:123,y.e,x.f,$xyz+y.f) FROM t1 x, t1 y;
+} {8}
+
+# 2019-08-15
+# Direct-only functions.
+#
+proc testdirectonly {x} {return [expr {$x*2}]}
+do_test func-33.1 {
+  db func testdirectonly -directonly testdirectonly
+  db eval {SELECT testdirectonly(15)}
+} {30}
+do_catchsql_test func-33.2 {
+  CREATE VIEW v33(y) AS SELECT testdirectonly(15);
+  SELECT * FROM v33;
+} {1 {unsafe use of testdirectonly()}}
+do_execsql_test func-33.3 {
+  SELECT * FROM (SELECT testdirectonly(15)) AS v33;
+} {30}
+do_execsql_test func-33.4 {
+  WITH c(x) AS (SELECT testdirectonly(15))
+  SELECT * FROM c;
+} {30}
+do_catchsql_test func-33.5 {
+  WITH c(x) AS (SELECT * FROM v33)
+  SELECT * FROM c;
+} {1 {unsafe use of testdirectonly()}}
+do_execsql_test func-33.10 {
+  CREATE TABLE t33a(a,b);
+  CREATE TABLE t33b(x,y);
+  CREATE TRIGGER r1 AFTER INSERT ON t33a BEGIN
+    INSERT INTO t33b(x,y) VALUES(testdirectonly(new.a),new.b);
+  END;
+} {}
+do_catchsql_test func-33.11 {
+  INSERT INTO t33a VALUES(1,2);
+} {1 {unsafe use of testdirectonly()}}
+
+ifcapable altertable {
+do_execsql_test func-33.20 {
+  ALTER TABLE t33a RENAME COLUMN a TO aaa;
+  SELECT sql FROM sqlite_master WHERE name='r1';
+} {{CREATE TRIGGER r1 AFTER INSERT ON t33a BEGIN
+    INSERT INTO t33b(x,y) VALUES(testdirectonly(new.aaa),new.b);
+  END}}
+}
+
+# 2020-01-09 Yongheng fuzzer find
+# The bug is in the register-validity debug logic, not in the SQLite core
+# and as such it only impacts debug builds.  Release builds work fine.
+#
+reset_db
+do_execsql_test func-34.10 {
+  CREATE TABLE t1(a INT CHECK(
+     datetime( 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
+              10,11,12,13,14,15,16,17,18,19,
+              20,21,22,23,24,25,26,27,28,29,
+              30,31,32,33,34,35,36,37,38,39,
+              40,41,42,43,44,45,46,47,48,a)
+   )
+  );
+  INSERT INTO t1(a) VALUES(1),(2);
+  SELECT * FROM t1;
+} {1 2}
+
+# 2020-03-11 COALESCE() should short-circuit
+# See also ticket 3c9eadd2a6ba0aa5
+# Both issues stem from the fact that functions that could
+# throw exceptions were being factored out into initialization
+# code.  The fix was to put those function calls inside of
+# OP_Once instead.
+#
+reset_db
+do_execsql_test func-35.100 {
+  CREATE TABLE t1(x);
+  SELECT coalesce(x, abs(-9223372036854775808)) FROM t1;
+} {}
+do_execsql_test func-35.110 {
+  SELECT coalesce(x, 'xyz' LIKE printf('%.1000000c','y')) FROM t1;
+} {}
+do_execsql_test func-35.200 {
+  CREATE TABLE t0(c0 CHECK(ABS(-9223372036854775808)));
+  PRAGMA integrity_check;
+} {ok}
+
+# 2021-01-07:  The -> and ->> operators.
+#
+proc ptr1 {a b} { return "$a->$b" }
+db func -> ptr1
+proc ptr2 {a b} { return "$a->>$b" }
+db func ->> ptr2
+do_execsql_test func-36.100 {
+  SELECT 123 -> 456
+} {123->456}
+do_execsql_test func-36.110 {
+  SELECT 123 ->> 456
+} {123->>456}
+
+# 2023-06-26
+# Enhanced precision of SUM().
+#
+reset_db
+do_catchsql_test func-37.100 {
+  WITH c(x) AS (VALUES(9223372036854775807),(9223372036854775807),
+                      (123),(-9223372036854775807),(-9223372036854775807))
+  SELECT sum(x) FROM c;
+} {1 {integer overflow}}
+do_catchsql_test func-37.110 {
+  WITH c(x) AS (VALUES(9223372036854775807),(1))
+  SELECT sum(x) FROM c;
+} {1 {integer overflow}}
+do_catchsql_test func-37.120 {
+  WITH c(x) AS (VALUES(9223372036854775807),(10000),(-10010))
+  SELECT sum(x) FROM c;
+} {1 {integer overflow}}
+
+# 2023-08-28 forum post https://sqlite.org/forum/forumpost/1c06ddcacc86032a
+# Incorrect handling of infinity by SUM().
+#
+do_execsql_test func-38.100 {
+  WITH t1(x) AS (VALUES(9e+999)) SELECT sum(x), avg(x), total(x) FROM t1;
+  WITH t1(x) AS (VALUES(-9e+999)) SELECT sum(x), avg(x), total(x) FROM t1;
+} {Inf Inf Inf -Inf -Inf -Inf}
+
+# 2024-03-21 https://sqlite.org/forum/forumpost/23b8688ef4
+# Another problem with Kahan-Babushka-Neumaier summation and
+# infinities.
+#
+do_execsql_test func-39.101 {
+  WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<1)
+  SELECT sum(1.7976931348623157e308),
+         avg(1.7976931348623157e308),
+         total(1.7976931348623157e308)
+    FROM c;
+} {1.79769313486232e+308 1.79769313486232e+308 1.79769313486232e+308}
+for {set i 2} {$i<10} {incr i} {
+  do_execsql_test func-39.[expr {10*$i+100}] {
+    WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<$i)
+    SELECT sum(1.7976931348623157e308),
+           avg(1.7976931348623157e308),
+           total(1.7976931348623157e308)
+      FROM c;
+  } {Inf Inf Inf}
+}
+
+finish_test
diff --git a/test/func2.test b/test/func2.test
new file mode 100644
index 0000000000000000000000000000000000000000..a7c7ec3fd8fc72c2461e5e4448394b2dcdbfb739
--- /dev/null
+++ b/test/func2.test
@@ -0,0 +1,534 @@
+# 2009 November 11
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing built-in functions.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Test plan:
+#
+#   func2-1.*: substr implementation (ascii)
+#   func2-2.*: substr implementation (utf8)
+#   func2-3.*: substr implementation (blob)
+#
+
+proc bin_to_hex {blob} {
+  set bytes {}
+  binary scan $blob \c* bytes
+  set bytes2 [list]
+  foreach b $bytes {lappend bytes2 [format %02X [expr $b & 0xFF]]}
+  join $bytes2 {}
+}
+
+#----------------------------------------------------------------------------
+# Test cases func2-1.*: substr implementation (ascii)
+#
+
+do_test func2-1.1 {
+  execsql {SELECT 'Supercalifragilisticexpialidocious'}
+} {Supercalifragilisticexpialidocious}
+
+# substr(x,y), substr(x,y,z)
+do_test func2-1.2.1 {
+  catchsql {SELECT SUBSTR()}
+} {1 {wrong number of arguments to function SUBSTR()}}
+do_test func2-1.2.2 {
+  catchsql {SELECT SUBSTR('Supercalifragilisticexpialidocious')}
+} {1 {wrong number of arguments to function SUBSTR()}}
+do_test func2-1.2.3 {
+  catchsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', 1,1,1)}
+} {1 {wrong number of arguments to function SUBSTR()}}
+
+# p1 is 1-indexed
+do_test func2-1.3 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', 0)}
+} {Supercalifragilisticexpialidocious}
+do_test func2-1.4 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', 1)}
+} {Supercalifragilisticexpialidocious}
+do_test func2-1.5 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', 2)}
+} {upercalifragilisticexpialidocious}
+do_test func2-1.6 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', 30)}
+} {cious}
+do_test func2-1.7 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', 34)}
+} {s}
+do_test func2-1.8 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', 35)}
+} {{}}
+do_test func2-1.9 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', 36)}
+} {{}}
+
+# if p1<0, start from right
+do_test func2-1.10 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', -0)}
+} {Supercalifragilisticexpialidocious}
+do_test func2-1.11 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', -1)}
+} {s}
+do_test func2-1.12 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', -2)}
+} {us}
+do_test func2-1.13 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', -30)}
+} {rcalifragilisticexpialidocious}
+do_test func2-1.14 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', -34)}
+} {Supercalifragilisticexpialidocious}
+do_test func2-1.15 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', -35)}
+} {Supercalifragilisticexpialidocious}
+do_test func2-1.16 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', -36)}
+} {Supercalifragilisticexpialidocious}
+
+# p1 is 1-indexed, p2 length to return
+do_test func2-1.17.1 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', 0, 1)}
+} {{}}
+do_test func2-1.17.2 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', 0, 2)}
+} {S}
+do_test func2-1.18 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', 1, 1)}
+} {S}
+do_test func2-1.19.0 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', 2, 0)}
+} {{}}
+do_test func2-1.19.1 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', 2, 1)}
+} {u}
+do_test func2-1.19.2 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', 2, 2)}
+} {up}
+do_test func2-1.20 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', 30, 1)}
+} {c}
+do_test func2-1.21 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', 34, 1)}
+} {s}
+do_test func2-1.22 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', 35, 1)}
+} {{}}
+do_test func2-1.23 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', 36, 1)}
+} {{}}
+
+# if p1<0, start from right, p2 length to return
+do_test func2-1.24 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', -0, 1)}
+} {{}}
+do_test func2-1.25.0 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', -1, 0)}
+} {{}}
+do_test func2-1.25.1 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', -1, 1)}
+} {s}
+do_test func2-1.25.2 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', -1, 2)}
+} {s}
+do_test func2-1.26 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', -2, 1)}
+} {u}
+do_test func2-1.27 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', -30, 1)}
+} {r}
+do_test func2-1.28.0 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', -34, 0)}
+} {{}}
+do_test func2-1.28.1 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', -34, 1)}
+} {S}
+do_test func2-1.28.2 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', -34, 2)}
+} {Su}
+do_test func2-1.29.1 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', -35, 1)}
+} {{}}
+do_test func2-1.29.2 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', -35, 2)}
+} {S}
+do_test func2-1.30.0 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', -36, 0)}
+} {{}}
+do_test func2-1.30.1 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', -36, 1)}
+} {{}}
+do_test func2-1.30.2 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', -36, 2)}
+} {{}}
+do_test func2-1.30.3 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', -36, 3)}
+} {S}
+
+# p1 is 1-indexed, p2 length to return, p2<0 return p2 chars before p1
+do_test func2-1.31.0 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', 0, 0)}
+} {{}}
+do_test func2-1.31.1 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', 0, -1)}
+} {{}}
+do_test func2-1.31.2 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', 0, -2)}
+} {{}}
+do_test func2-1.32.0 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', 1, 0)}
+} {{}}
+do_test func2-1.32.1 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', 1, -1)}
+} {{}}
+do_test func2-1.33.0 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', 2, 0)}
+} {{}}
+do_test func2-1.33.1 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', 2, -1)}
+} {S}
+do_test func2-1.33.2 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', 2, -2)}
+} {S}
+do_test func2-1.34.0 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', 3, 0)}
+} {{}}
+do_test func2-1.34.1 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', 3, -1)}
+} {u}
+do_test func2-1.34.2 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', 3, -2)}
+} {Su}
+do_test func2-1.35.1 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', 30, -1)}
+} {o}
+do_test func2-1.35.2 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', 30, -2)}
+} {do}
+do_test func2-1.36 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', 34, -1)}
+} {u}
+do_test func2-1.37 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', 35, -1)}
+} {s}
+do_test func2-1.38.0 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', 36, 0)}
+} {{}}
+do_test func2-1.38.1 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', 36, -1)}
+} {{}}
+do_test func2-1.38.2 {
+  execsql {SELECT SUBSTR('Supercalifragilisticexpialidocious', 36, -2)}
+} {s}
+
+
+#----------------------------------------------------------------------------
+# Test cases func2-2.*: substr implementation (utf8)
+#
+
+# Only do the following tests if TCL has UTF-8 capabilities
+#
+if {"\u1234"!="u1234"} {
+
+do_test func2-2.1.1 {
+  execsql "SELECT 'hi\u1234ho'"
+} "hi\u1234ho"
+
+# substr(x,y), substr(x,y,z)
+do_test func2-2.1.2 {
+  catchsql "SELECT SUBSTR()"
+} {1 {wrong number of arguments to function SUBSTR()}}
+do_test func2-2.1.3 {
+  catchsql "SELECT SUBSTR('hi\u1234ho')"
+} {1 {wrong number of arguments to function SUBSTR()}}
+do_test func2-2.1.4 {
+  catchsql "SELECT SUBSTR('hi\u1234ho', 1,1,1)"
+} {1 {wrong number of arguments to function SUBSTR()}}
+
+do_test func2-2.2.0 {
+  execsql "SELECT SUBSTR('hi\u1234ho', 0, 0)"
+} {{}}
+do_test func2-2.2.1 {
+  execsql "SELECT SUBSTR('hi\u1234ho', 0, 1)"
+} {{}}
+do_test func2-2.2.2 {
+  execsql "SELECT SUBSTR('hi\u1234ho', 0, 2)"
+} "h"
+do_test func2-2.2.3 {
+  execsql "SELECT SUBSTR('hi\u1234ho', 0, 3)"
+} "hi"
+do_test func2-2.2.4 {
+  execsql "SELECT SUBSTR('hi\u1234ho', 0, 4)"
+} "hi\u1234"
+do_test func2-2.2.5 {
+  execsql "SELECT SUBSTR('hi\u1234ho', 0, 5)"
+} "hi\u1234h"
+do_test func2-2.2.6 {
+  execsql "SELECT SUBSTR('hi\u1234ho', 0, 6)"
+} "hi\u1234ho"
+
+do_test func2-2.3.0 {
+  execsql "SELECT SUBSTR('hi\u1234ho', 1, 0)"
+} {{}}
+do_test func2-2.3.1 {
+  execsql "SELECT SUBSTR('hi\u1234ho', 1, 1)"
+} "h"
+do_test func2-2.3.2 {
+  execsql "SELECT SUBSTR('hi\u1234ho', 1, 2)"
+} "hi"
+do_test func2-2.3.3 {
+  execsql "SELECT SUBSTR('hi\u1234ho', 1, 3)"
+} "hi\u1234"
+do_test func2-2.3.4 {
+  execsql "SELECT SUBSTR('hi\u1234ho', 1, 4)"
+} "hi\u1234h"
+do_test func2-2.3.5 {
+  execsql "SELECT SUBSTR('hi\u1234ho', 1, 5)"
+} "hi\u1234ho"
+do_test func2-2.3.6 {
+  execsql "SELECT SUBSTR('hi\u1234ho', 1, 6)"
+} "hi\u1234ho"
+
+do_test func2-2.4.0 {
+  execsql "SELECT SUBSTR('hi\u1234ho', 3, 0)"
+} {{}}
+do_test func2-2.4.1 {
+  execsql "SELECT SUBSTR('hi\u1234ho', 3, 1)"
+} "\u1234"
+do_test func2-2.4.2 {
+  execsql "SELECT SUBSTR('hi\u1234ho', 3, 2)"
+} "\u1234h"
+
+do_test func2-2.5.0 {
+  execsql "SELECT SUBSTR('\u1234', 0, 0)"
+} {{}}
+do_test func2-2.5.1 {
+  execsql "SELECT SUBSTR('\u1234', 0, 1)"
+} {{}}
+do_test func2-2.5.2 {
+  execsql "SELECT SUBSTR('\u1234', 0, 2)"
+} "\u1234"
+do_test func2-2.5.3 {
+  execsql "SELECT SUBSTR('\u1234', 0, 3)"
+} "\u1234"
+
+do_test func2-2.6.0 {
+  execsql "SELECT SUBSTR('\u1234', 1, 0)"
+} {{}}
+do_test func2-2.6.1 {
+  execsql "SELECT SUBSTR('\u1234', 1, 1)"
+} "\u1234"
+do_test func2-2.6.2 {
+  execsql "SELECT SUBSTR('\u1234', 1, 2)"
+} "\u1234"
+do_test func2-2.6.3 {
+  execsql "SELECT SUBSTR('\u1234', 1, 3)"
+} "\u1234"
+
+do_test func2-2.7.0 {
+  execsql "SELECT SUBSTR('\u1234', 2, 0)"
+} {{}}
+do_test func2-2.7.1 {
+  execsql "SELECT SUBSTR('\u1234', 2, 1)"
+} {{}}
+do_test func2-2.7.2 {
+  execsql "SELECT SUBSTR('\u1234', 2, 2)"
+} {{}}
+
+do_test func2-2.8.0 {
+  execsql "SELECT SUBSTR('\u1234', -1, 0)"
+} {{}}
+do_test func2-2.8.1 {
+  execsql "SELECT SUBSTR('\u1234', -1, 1)"
+} "\u1234"
+do_test func2-2.8.2 {
+  execsql "SELECT SUBSTR('\u1234', -1, 2)"
+} "\u1234"
+do_test func2-2.8.3 {
+  execsql "SELECT SUBSTR('\u1234', -1, 3)"
+} "\u1234"
+
+} ;# End \u1234!=u1234
+
+#----------------------------------------------------------------------------
+# Test cases func2-3.*: substr implementation (blob)
+#
+
+ifcapable {!bloblit} {
+  finish_test
+  return
+}
+
+do_test func2-3.1.1 {
+  set blob [execsql "SELECT x'1234'"]
+  bin_to_hex [lindex $blob 0]
+} "1234"
+
+# substr(x,y), substr(x,y,z)
+do_test func2-3.1.2 {
+  catchsql {SELECT SUBSTR()}
+} {1 {wrong number of arguments to function SUBSTR()}}
+do_test func2-3.1.3 {
+  catchsql {SELECT SUBSTR(x'1234')}
+} {1 {wrong number of arguments to function SUBSTR()}}
+do_test func2-3.1.4 {
+  catchsql {SELECT SUBSTR(x'1234', 1,1,1)}
+} {1 {wrong number of arguments to function SUBSTR()}}
+
+do_test func2-3.2.0 {
+  set blob [execsql "SELECT SUBSTR(x'1234', 0, 0)"]
+  bin_to_hex [lindex $blob 0]
+} {}
+do_test func2-3.2.1 {
+  set blob [execsql "SELECT SUBSTR(x'1234', 0, 1)"]
+  bin_to_hex [lindex $blob 0]
+} {}
+do_test func2-3.2.2 {
+  set blob [execsql "SELECT SUBSTR(x'1234', 0, 2)"]
+  bin_to_hex [lindex $blob 0]
+} "12"
+do_test func2-3.2.3 {
+  set blob [execsql "SELECT SUBSTR(x'1234', 0, 3)"]
+  bin_to_hex [lindex $blob 0]
+} "1234"
+
+do_test func2-3.3.0 {
+  set blob [execsql "SELECT SUBSTR(x'1234', 1, 0)"]
+  bin_to_hex [lindex $blob 0]
+} {}
+do_test func2-3.3.1 {
+  set blob [execsql "SELECT SUBSTR(x'1234', 1, 1)"]
+  bin_to_hex [lindex $blob 0]
+} "12"
+do_test func2-3.3.2 {
+  set blob [execsql "SELECT SUBSTR(x'1234', 1, 2)"]
+  bin_to_hex [lindex $blob 0]
+} "1234"
+do_test func2-3.3.3 {
+  set blob [execsql "SELECT SUBSTR(x'1234', 1, 3)"]
+  bin_to_hex [lindex $blob 0]
+} "1234"
+
+do_test func2-3.4.0 {
+  set blob [execsql "SELECT SUBSTR(x'1234', -1, 0)"]
+  bin_to_hex [lindex $blob 0]
+} {}
+do_test func2-3.4.1 {
+  set blob [execsql "SELECT SUBSTR(x'1234', -1, 1)"]
+  bin_to_hex [lindex $blob 0]
+} "34"
+do_test func2-3.4.2 {
+  set blob [execsql "SELECT SUBSTR(x'1234', -1, 2)"]
+  bin_to_hex [lindex $blob 0]
+} "34"
+do_test func2-3.4.3 {
+  set blob [execsql "SELECT SUBSTR(x'1234', -1, 3)"]
+  bin_to_hex [lindex $blob 0]
+} "34"
+
+do_test func2-3.5.0 {
+  set blob [execsql "SELECT SUBSTR(x'1234', -2, 0)"]
+  bin_to_hex [lindex $blob 0]
+} {}
+do_test func2-3.5.1 {
+  set blob [execsql "SELECT SUBSTR(x'1234', -2, 1)"]
+  bin_to_hex [lindex $blob 0]
+} "12"
+do_test func2-3.5.2 {
+  set blob [execsql "SELECT SUBSTR(x'1234', -2, 2)"]
+  bin_to_hex [lindex $blob 0]
+} "1234"
+do_test func2-3.5.3 {
+  set blob [execsql "SELECT SUBSTR(x'1234', -2, 3)"]
+  bin_to_hex [lindex $blob 0]
+} "1234"
+
+do_test func2-3.6.0 {
+  set blob [execsql "SELECT SUBSTR(x'1234', -1, 0)"]
+  bin_to_hex [lindex $blob 0]
+} {}
+do_test func2-3.6.1 {
+  set blob [execsql "SELECT SUBSTR(x'1234', -1, -1)"]
+  bin_to_hex [lindex $blob 0]
+} "12"
+do_test func2-3.6.2 {
+  set blob [execsql "SELECT SUBSTR(x'1234', -1, -2)"]
+  bin_to_hex [lindex $blob 0]
+} "12"
+do_test func2-3.6.3 {
+  set blob [execsql "SELECT SUBSTR(x'1234', -1, -3)"]
+  bin_to_hex [lindex $blob 0]
+} "12"
+
+do_test func2-3.7.0 {
+  set blob [execsql "SELECT SUBSTR(x'1234', -2, 0)"]
+  bin_to_hex [lindex $blob 0]
+} {}
+do_test func2-3.7.1 {
+  set blob [execsql "SELECT SUBSTR(x'1234', -2, -1)"]
+  bin_to_hex [lindex $blob 0]
+} {}
+do_test func2-3.7.2 {
+  set blob [execsql "SELECT SUBSTR(x'1234', -2, -2)"]
+  bin_to_hex [lindex $blob 0]
+} {}
+
+do_test func2-3.8.0 {
+  set blob [execsql "SELECT SUBSTR(x'1234', 1, 0)"]
+  bin_to_hex [lindex $blob 0]
+} {}
+do_test func2-3.8.1 {
+  set blob [execsql "SELECT SUBSTR(x'1234', 1, -1)"]
+  bin_to_hex [lindex $blob 0]
+} {}
+do_test func2-3.8.2 {
+  set blob [execsql "SELECT SUBSTR(x'1234', 1, -2)"]
+  bin_to_hex [lindex $blob 0]
+} {}
+
+do_test func2-3.9.0 {
+  set blob [execsql "SELECT SUBSTR(x'1234', 2, 0)"]
+  bin_to_hex [lindex $blob 0]
+} {}
+do_test func2-3.9.1 {
+  set blob [execsql "SELECT SUBSTR(x'1234', 2, -1)"]
+  bin_to_hex [lindex $blob 0]
+} "12"
+do_test func2-3.9.2 {
+  set blob [execsql "SELECT SUBSTR(x'1234', 2, -2)"]
+  bin_to_hex [lindex $blob 0]
+} "12"
+
+#-------------------------------------------------------------------------
+# At one point this was extremely slow to compile.
+#
+do_test func2-3.10 {
+  set tm [time {
+    execsql {
+      SELECT '' IN (zerobloB(zerobloB(zerobloB(zerobloB(zerobloB(
+      zerobloB(zerobloB(zerobloB(zerobloB(zerobloB(zerobloB(zerobloB(
+      zerobloB(zerobloB(zerobloB(zerobloB(zerobloB(zerobloB(zerobloB(
+      zerobloB(zerobloB(zerobloB(zerobloB(zerobloB(zerobloB(zerobloB(
+      zerobloB(zerobloB(zerobloB(zerobloB(zerobloB(zerobloB(zerobloB(
+      zerobloB(zerobloB(zerobloB(zerobloB(zerobloB(zerobloB(zerobloB(
+      zerobloB(zerobloB(zerobloB(zerobloB(zerobloB(zerobloB(zerobloB(
+      zerobloB(zerobloB(zerobloB(zerobloB(zerobloB(zerobloB(zerobloB(
+      zerobloB(zerobloB(zerobloB(zerobloB(zerobloB(zerobloB(zerobloB(1)
+      )))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))
+  }
+  }]
+
+  set tm [lindex $tm 0]
+  expr $tm<2000000
+} {1}
+
+finish_test
diff --git a/test/func3.test b/test/func3.test
new file mode 100644
index 0000000000000000000000000000000000000000..0221a0dfd6e97cf21d6f88c323dff3f7ef15f4f4
--- /dev/null
+++ b/test/func3.test
@@ -0,0 +1,211 @@
+# 2010 August 27
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. The
+# focus of this file is testing that destructor functions associated
+# with functions created using sqlite3_create_function_v2() is 
+# correctly invoked.
+#
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+
+ifcapable utf16 {
+  do_test func3-1.1 {
+    set destroyed 0
+    proc destroy {} { set ::destroyed 1 }
+    sqlite3_create_function_v2 db f2 -1 any -func f2 -destroy destroy
+    set destroyed
+  } 0
+  do_test func3-1.2 {
+    sqlite3_create_function_v2 db f2 -1 utf8 -func f2
+    set destroyed
+  } 0
+  do_test func3-1.3 {
+    sqlite3_create_function_v2 db f2 -1 utf16le -func f2
+    set destroyed
+  } 0
+  do_test func3-1.4 {
+    sqlite3_create_function_v2 db f2 -1 utf16be -func f2
+    set destroyed
+  } 1
+}
+
+do_test func3-2.1 {
+  set destroyed 0
+  proc destroy {} { set ::destroyed 1 }
+  sqlite3_create_function_v2 db f3 -1 utf8 -func f3 -destroy destroy
+  set destroyed
+} 0
+do_test func3-2.2 {
+  sqlite3_create_function_v2 db f3 -1 utf8 -func f3
+  set destroyed
+} 1
+
+do_test func3-3.1 {
+  set destroyed 0
+  proc destroy {} { set ::destroyed 1 }
+  sqlite3_create_function_v2 db f3 -1 any -func f3 -destroy destroy
+  set destroyed
+} 0
+do_test func3-3.2 {
+  db close
+  set destroyed
+} 1
+
+sqlite3 db test.db
+do_test func3-4.1 {
+  set destroyed 0
+  set rc [catch { 
+    sqlite3_create_function_v2 db f3 -1 any -func f3 -step f3 -destroy destroy
+  } msg]
+  list $rc $msg
+} {1 SQLITE_MISUSE}
+do_test func3-4.2 { set destroyed } 1
+
+# EVIDENCE-OF: R-41921-05214 The likelihood(X,Y) function returns
+# argument X unchanged.
+#
+do_execsql_test func3-5.1 {
+  SELECT likelihood(9223372036854775807, 0.5);
+} {9223372036854775807}
+do_execsql_test func3-5.2 {
+  SELECT likelihood(-9223372036854775808, 0.5);
+} {-9223372036854775808}
+do_execsql_test func3-5.3 {
+  SELECT likelihood(14.125, 0.5);
+} {14.125}
+do_execsql_test func3-5.4 {
+  SELECT likelihood(NULL, 0.5);
+} {{}}
+do_execsql_test func3-5.5 {
+  SELECT likelihood('test-string', 0.5);
+} {test-string}
+do_execsql_test func3-5.6 {
+  SELECT quote(likelihood(x'010203000405', 0.5));
+} {X'010203000405'}
+
+# EVIDENCE-OF: R-44133-61651 The value Y in likelihood(X,Y) must be a
+# floating point constant between 0.0 and 1.0, inclusive.
+#
+do_execsql_test func3-5.7 {
+  SELECT likelihood(123, 1.0), likelihood(456, 0.0);
+} {123 456}
+do_test func3-5.8 {
+  catchsql {
+    SELECT likelihood(123, 1.000001);
+  }
+} {1 {second argument to likelihood() must be a constant between 0.0 and 1.0}}
+do_test func3-5.9 {
+  catchsql {
+    SELECT likelihood(123, -0.000001);
+  }
+} {1 {second argument to likelihood() must be a constant between 0.0 and 1.0}}
+do_test func3-5.10 {
+  catchsql {
+    SELECT likelihood(123, 0.5+0.3);
+  }
+} {1 {second argument to likelihood() must be a constant between 0.0 and 1.0}}
+
+# EVIDENCE-OF: R-28535-44631 The likelihood(X) function is a no-op that
+# the code generator optimizes away so that it consumes no CPU cycles
+# during run-time (that is, during calls to sqlite3_step()).
+#
+do_test func3-5.20 {
+  db eval {EXPLAIN SELECT likelihood(min(1.0+'2.0',4*11), 0.5)}
+} [db eval {EXPLAIN SELECT min(1.0+'2.0',4*11)}]
+
+
+# EVIDENCE-OF: R-11152-23456 The unlikely(X) function returns the
+# argument X unchanged.
+#
+do_execsql_test func3-5.30 {
+  SELECT unlikely(9223372036854775807);
+} {9223372036854775807}
+do_execsql_test func3-5.31 {
+  SELECT unlikely(-9223372036854775808);
+} {-9223372036854775808}
+do_execsql_test func3-5.32 {
+  SELECT unlikely(14.125);
+} {14.125}
+do_execsql_test func3-5.33 {
+  SELECT unlikely(NULL);
+} {{}}
+do_execsql_test func3-5.34 {
+  SELECT unlikely('test-string');
+} {test-string}
+do_execsql_test func3-5.35 {
+  SELECT quote(unlikely(x'010203000405'));
+} {X'010203000405'}
+
+# EVIDENCE-OF: R-22887-63324 The unlikely(X) function is a no-op that
+# the code generator optimizes away so that it consumes no CPU cycles at
+# run-time (that is, during calls to sqlite3_step()).
+#
+do_test func3-5.39 {
+  db eval {EXPLAIN SELECT unlikely(min(1.0+'2.0',4*11))}
+} [db eval {EXPLAIN SELECT min(1.0+'2.0',4*11)}]
+
+# Unlikely() does not preserve the affinity of X.
+# ticket https://www.sqlite.org/src/tktview/0c620df60b
+#
+do_execsql_test func3-5.40 {
+  SELECT likely(CAST(1 AS INT))=='1';
+} 0
+do_execsql_test func3-5.41 {
+  SELECT unlikely(CAST(1 AS INT))=='1';
+} 0
+do_execsql_test func3-5.41 {
+  SELECT likelihood(CAST(1 AS INT),0.5)=='1';
+} 0
+
+
+# EVIDENCE-OF: R-23735-03107 The likely(X) function returns the argument
+# X unchanged.
+#
+do_execsql_test func3-5.50 {
+  SELECT likely(9223372036854775807);
+} {9223372036854775807}
+do_execsql_test func3-5.51 {
+  SELECT likely(-9223372036854775808);
+} {-9223372036854775808}
+do_execsql_test func3-5.52 {
+  SELECT likely(14.125);
+} {14.125}
+do_execsql_test func3-5.53 {
+  SELECT likely(NULL);
+} {{}}
+do_execsql_test func3-5.54 {
+  SELECT likely('test-string');
+} {test-string}
+do_execsql_test func3-5.55 {
+  SELECT quote(likely(x'010203000405'));
+} {X'010203000405'}
+
+# EVIDENCE-OF: R-43464-09689 The likely(X) function is a no-op that the
+# code generator optimizes away so that it consumes no CPU cycles at
+# run-time (that is, during calls to sqlite3_step()).
+#
+do_test func3-5.59 {
+  db eval {EXPLAIN SELECT likely(min(1.0+'2.0',4*11))}
+} [db eval {EXPLAIN SELECT min(1.0+'2.0',4*11)}]
+
+
+# Test the outcome of specifying NULL xStep and xFinal pointers (normally
+# used to delete any existing function) and a non-NULL xDestroy when there 
+# is no existing function to destroy.
+#
+do_test func3-6.0 {
+  sqlite3_create_function_v2 db nofunc 1 utf8
+} {}
+
+
+
+finish_test
diff --git a/test/func4.test b/test/func4.test
new file mode 100644
index 0000000000000000000000000000000000000000..fb74b7d8d56d0c5ed226fcaf9572fb1ee5d3fea6
--- /dev/null
+++ b/test/func4.test
@@ -0,0 +1,781 @@
+# 2023-03-10
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. The focus of
+# this file is testing the tointeger() and toreal() functions that are
+# part of the "totype.c" extension.  This file does not test the core
+# SQLite library.  Failures of tests in this file are related to the
+# ext/misc/totype.c extension.
+#
+# Several of the toreal() tests are disabled on platforms where floating
+# point precision is not high enough to represent their constant integer
+# expression arguments as double precision floating point values.
+#
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set saved_tcl_precision $tcl_precision
+set tcl_precision 0
+load_static_extension db totype
+
+set highPrecision(1) [expr \
+    {[db eval {SELECT tointeger(9223372036854775807 + 1);}] eq {{}}}]
+set highPrecision(2) [expr \
+    {[db eval {SELECT toreal(-9223372036854775808 + 1);}] eq {{}}}]
+
+# highPrecision(3) is only known to be false on i586 with gcc-13 and -O2.
+# It is true on the exact same platform with -O0.  Both results seem
+# reasonable, so we'll just very the expectation accordingly.
+#
+set highPrecision(3) [expr \
+    {[db eval {SELECT toreal(9007199254740992 + 1);}] eq {{}}}]
+
+if {!$highPrecision(1) || !$highPrecision(2) || !$highPrecision(3)} {
+  puts "NOTICE:\
+        highPrecision: $highPrecision(1) $highPrecision(2) $highPrecision(3)"
+}
+
+do_execsql_test func4-1.1 {
+  SELECT tointeger(NULL);
+} {{}}
+do_execsql_test func4-1.2 {
+  SELECT tointeger('');
+} {{}}
+do_execsql_test func4-1.3 {
+  SELECT tointeger('   ');
+} {{}}
+do_execsql_test func4-1.4 {
+  SELECT tointeger('1234');
+} {1234}
+do_execsql_test func4-1.5 {
+  SELECT tointeger('   1234');
+} {{}}
+do_execsql_test func4-1.6 {
+  SELECT tointeger('bad');
+} {{}}
+do_execsql_test func4-1.7 {
+  SELECT tointeger('0xBAD');
+} {{}}
+do_execsql_test func4-1.8 {
+  SELECT tointeger('123BAD');
+} {{}}
+do_execsql_test func4-1.9 {
+  SELECT tointeger('0x123BAD');
+} {{}}
+do_execsql_test func4-1.10 {
+  SELECT tointeger('123NO');
+} {{}}
+do_execsql_test func4-1.11 {
+  SELECT tointeger('0x123NO');
+} {{}}
+do_execsql_test func4-1.12 {
+  SELECT tointeger('-0x1');
+} {{}}
+do_execsql_test func4-1.13 {
+  SELECT tointeger('-0x0');
+} {{}}
+do_execsql_test func4-1.14 {
+  SELECT tointeger('0x0');
+} {{}}
+do_execsql_test func4-1.15 {
+  SELECT tointeger('0x1');
+} {{}}
+do_execsql_test func4-1.16 {
+  SELECT tointeger(-1);
+} {-1}
+do_execsql_test func4-1.17 {
+  SELECT tointeger(-0);
+} {0}
+do_execsql_test func4-1.18 {
+  SELECT tointeger(0);
+} {0}
+do_execsql_test func4-1.19 {
+  SELECT tointeger(1);
+} {1}
+do_execsql_test func4-1.20 {
+  SELECT tointeger(-1.79769313486232e308 - 1);
+} {{}}
+do_execsql_test func4-1.21 {
+  SELECT tointeger(-1.79769313486232e308);
+} {{}}
+do_execsql_test func4-1.22 {
+  SELECT tointeger(-1.79769313486232e308 + 1);
+} {{}}
+do_execsql_test func4-1.23 {
+  SELECT tointeger(-9223372036854775808 - 1);
+} {{}}
+do_execsql_test func4-1.24 {
+  SELECT tointeger(-9223372036854775808);
+} {-9223372036854775808}
+do_execsql_test func4-1.25 {
+  SELECT tointeger(-9223372036854775808 + 1);
+} {-9223372036854775807}
+do_execsql_test func4-1.26 {
+  SELECT tointeger(-9223372036854775807 - 1);
+} {-9223372036854775808}
+do_execsql_test func4-1.27 {
+  SELECT tointeger(-9223372036854775807);
+} {-9223372036854775807}
+do_execsql_test func4-1.28 {
+  SELECT tointeger(-9223372036854775807 + 1);
+} {-9223372036854775806}
+do_execsql_test func4-1.29 {
+  SELECT tointeger(-2147483648 - 1);
+} {-2147483649}
+do_execsql_test func4-1.30 {
+  SELECT tointeger(-2147483648);
+} {-2147483648}
+do_execsql_test func4-1.31 {
+  SELECT tointeger(-2147483648 + 1);
+} {-2147483647}
+do_execsql_test func4-1.32 {
+  SELECT tointeger(2147483647 - 1);
+} {2147483646}
+do_execsql_test func4-1.33 {
+  SELECT tointeger(2147483647);
+} {2147483647}
+do_execsql_test func4-1.34 {
+  SELECT tointeger(2147483647 + 1);
+} {2147483648}
+do_execsql_test func4-1.35 {
+  SELECT tointeger(9223372036854775807 - 1);
+} {9223372036854775806}
+do_execsql_test func4-1.36 {
+  SELECT tointeger(9223372036854775807);
+} {9223372036854775807}
+if {$highPrecision(1)} {
+  do_execsql_test func4-1.37 {
+    SELECT tointeger(9223372036854775807 + 1);
+  } {{}}
+}
+do_execsql_test func4-1.38 {
+  SELECT tointeger(1.79769313486232e308 - 1);
+} {{}}
+do_execsql_test func4-1.39 {
+  SELECT tointeger(1.79769313486232e308);
+} {{}}
+do_execsql_test func4-1.40 {
+  SELECT tointeger(1.79769313486232e308 + 1);
+} {{}}
+do_execsql_test func4-1.41 {
+  SELECT tointeger(4503599627370496 - 1);
+} {4503599627370495}
+do_execsql_test func4-1.42 {
+  SELECT tointeger(4503599627370496);
+} {4503599627370496}
+do_execsql_test func4-1.43 {
+  SELECT tointeger(4503599627370496 + 1);
+} {4503599627370497}
+do_execsql_test func4-1.44 {
+  SELECT tointeger(9007199254740992 - 1);
+} {9007199254740991}
+do_execsql_test func4-1.45 {
+  SELECT tointeger(9007199254740992);
+} {9007199254740992}
+do_execsql_test func4-1.46 {
+  SELECT tointeger(9007199254740992 + 1);
+} {9007199254740993}
+do_execsql_test func4-1.47 {
+  SELECT tointeger(9223372036854775807 - 1);
+} {9223372036854775806}
+do_execsql_test func4-1.48 {
+  SELECT tointeger(9223372036854775807);
+} {9223372036854775807}
+if {$highPrecision(1)} {
+  do_execsql_test func4-1.49 {
+    SELECT tointeger(9223372036854775807 + 1);
+  } {{}}
+  do_execsql_test func4-1.50 {
+    SELECT tointeger(9223372036854775808 - 1);
+  } {{}}
+  do_execsql_test func4-1.51 {
+    SELECT tointeger(9223372036854775808);
+  } {{}}
+  do_execsql_test func4-1.52 {
+    SELECT tointeger(9223372036854775808 + 1);
+  } {{}}
+}
+do_execsql_test func4-1.53 {
+  SELECT tointeger(18446744073709551616 - 1);
+} {{}}
+do_execsql_test func4-1.54 {
+  SELECT tointeger(18446744073709551616);
+} {{}}
+do_execsql_test func4-1.55 {
+  SELECT tointeger(18446744073709551616 + 1);
+} {{}}
+
+ifcapable floatingpoint {
+
+  do_execsql_test func4-2.1 {
+    SELECT toreal(NULL);
+  } {{}}
+  do_execsql_test func4-2.2 {
+    SELECT toreal('');
+  } {{}}
+  do_execsql_test func4-2.3 {
+    SELECT toreal('   ');
+  } {{}}
+  do_execsql_test func4-2.4 {
+    SELECT toreal('1234');
+  } {1234.0}
+  do_execsql_test func4-2.5 {
+    SELECT toreal('   1234');
+  } {{}}
+  do_execsql_test func4-2.6 {
+    SELECT toreal('bad');
+  } {{}}
+  do_execsql_test func4-2.7 {
+    SELECT toreal('0xBAD');
+  } {{}}
+  do_execsql_test func4-2.8 {
+    SELECT toreal('123BAD');
+  } {{}}
+  do_execsql_test func4-2.9 {
+    SELECT toreal('0x123BAD');
+  } {{}}
+  do_execsql_test func4-2.10 {
+    SELECT toreal('123NO');
+  } {{}}
+  do_execsql_test func4-2.11 {
+    SELECT toreal('0x123NO');
+  } {{}}
+  do_execsql_test func4-2.12 {
+    SELECT toreal('-0x1');
+  } {{}}
+  do_execsql_test func4-2.13 {
+    SELECT toreal('-0x0');
+  } {{}}
+  do_execsql_test func4-2.14 {
+    SELECT toreal('0x0');
+  } {{}}
+  do_execsql_test func4-2.15 {
+    SELECT toreal('0x1');
+  } {{}}
+  do_execsql_test func4-2.16 {
+    SELECT toreal(-1);
+  } {-1.0}
+  do_execsql_test func4-2.17 {
+    SELECT toreal(-0);
+  } {0.0}
+  do_execsql_test func4-2.18 {
+    SELECT toreal(0);
+  } {0.0}
+  do_execsql_test func4-2.19 {
+    SELECT toreal(1);
+  } {1.0}
+  do_execsql_test func4-2.20 {
+    SELECT toreal(-1.79769313486232e308 - 1);
+  } {-Inf}
+  do_execsql_test func4-2.21 {
+    SELECT toreal(-1.79769313486232e308);
+  } {-Inf}
+  do_execsql_test func4-2.22 {
+    SELECT toreal(-1.79769313486232e308 + 1);
+  } {-Inf}
+  do_execsql_test func4-2.23 {
+    SELECT toreal(-9223372036854775808 - 1);
+  } {-9.223372036854776e+18}
+  do_execsql_test func4-2.24 {
+    SELECT toreal(-9223372036854775808);
+  } {{}}
+  if {$highPrecision(2)} {
+    do_execsql_test func4-2.25 {
+      SELECT toreal(-9223372036854775808 + 1);
+    } {{}}
+  }
+  do_execsql_test func4-2.26 {
+    SELECT toreal(-9223372036854775807 - 1);
+  } {{}}
+  if {$highPrecision(2)} {
+    do_execsql_test func4-2.27 {
+      SELECT toreal(-9223372036854775807);
+    } {{}}
+    do_execsql_test func4-2.28 {
+      SELECT toreal(-9223372036854775807 + 1);
+    } {{}}
+  }
+  do_execsql_test func4-2.29 {
+    SELECT toreal(-2147483648 - 1);
+  } {-2147483649.0}
+  do_execsql_test func4-2.30 {
+    SELECT toreal(-2147483648);
+  } {-2147483648.0}
+  do_execsql_test func4-2.31 {
+    SELECT toreal(-2147483648 + 1);
+  } {-2147483647.0}
+  do_execsql_test func4-2.32 {
+    SELECT toreal(2147483647 - 1);
+  } {2147483646.0}
+  do_execsql_test func4-2.33 {
+    SELECT toreal(2147483647);
+  } {2147483647.0}
+  do_execsql_test func4-2.34 {
+    SELECT toreal(2147483647 + 1);
+  } {2147483648.0}
+  if {$highPrecision(2)} {
+    do_execsql_test func4-2.35 {
+      SELECT toreal(9223372036854775807 - 1);
+    } {{}}
+    if {$highPrecision(1)} {
+      do_execsql_test func4-2.36 {
+        SELECT toreal(9223372036854775807);
+      } {{}}
+    }
+  }
+  do_execsql_test func4-2.37 {
+    SELECT toreal(9223372036854775807 + 1);
+  } {9.223372036854776e+18}
+  do_execsql_test func4-2.38 {
+    SELECT toreal(1.79769313486232e308 - 1);
+  } {Inf}
+  do_execsql_test func4-2.39 {
+    SELECT toreal(1.79769313486232e308);
+  } {Inf}
+  do_execsql_test func4-2.40 {
+    SELECT toreal(1.79769313486232e308 + 1);
+  } {Inf}
+  do_execsql_test func4-2.41 {
+    SELECT toreal(4503599627370496 - 1);
+  } {4503599627370495.0}
+  do_execsql_test func4-2.42 {
+    SELECT toreal(4503599627370496);
+  } {4503599627370496.0}
+  do_execsql_test func4-2.43 {
+    SELECT toreal(4503599627370496 + 1);
+  } {4503599627370497.0}
+  do_execsql_test func4-2.44 {
+    SELECT toreal(9007199254740992 - 1);
+  } {9007199254740991.0}
+  do_execsql_test func4-2.45 {
+    SELECT toreal(9007199254740992);
+  } {9007199254740992.0}
+  if {$highPrecision(3)} {
+    do_execsql_test func4-2.46 {
+      SELECT toreal(9007199254740992 + 1);
+    } {{}}
+  } else {
+    do_execsql_test func4-2.46 {
+      SELECT toreal(9007199254740992 + 1);
+    } {9007199254740992.0}
+  }
+  do_execsql_test func4-2.47 {
+    SELECT toreal(9007199254740992 + 2);
+  } {9007199254740994.0}
+  do_execsql_test func4-2.48 {
+    SELECT toreal(tointeger(9223372036854775808) - 1);
+  } {{}}
+  if {$highPrecision(1)} {
+    do_execsql_test func4-2.49 {
+      SELECT toreal(tointeger(9223372036854775808));
+    } {{}}
+    do_execsql_test func4-2.50 {
+      SELECT toreal(tointeger(9223372036854775808) + 1);
+    } {{}}
+  }
+  do_execsql_test func4-2.51 {
+    SELECT toreal(tointeger(18446744073709551616) - 1);
+  } {{}}
+  do_execsql_test func4-2.52 {
+    SELECT toreal(tointeger(18446744073709551616));
+  } {{}}
+  do_execsql_test func4-2.53 {
+    SELECT toreal(tointeger(18446744073709551616) + 1);
+  } {{}}
+}
+
+ifcapable check {
+  do_execsql_test func4-3.1 {
+    CREATE TABLE t1(
+      x INTEGER CHECK(tointeger(x) IS NOT NULL)
+    );
+  } {}
+  do_test func4-3.2 {
+    catchsql {
+      INSERT INTO t1 (x) VALUES (NULL);
+    }
+  } {1 {CHECK constraint failed: tointeger(x) IS NOT NULL}}
+  do_test func4-3.3 {
+    catchsql {
+      INSERT INTO t1 (x) VALUES (NULL);
+    }
+  } {1 {CHECK constraint failed: tointeger(x) IS NOT NULL}}
+  do_test func4-3.4 {
+    catchsql {
+      INSERT INTO t1 (x) VALUES ('');
+    }
+  } {1 {CHECK constraint failed: tointeger(x) IS NOT NULL}}
+  do_test func4-3.5 {
+    catchsql {
+      INSERT INTO t1 (x) VALUES ('bad');
+    }
+  } {1 {CHECK constraint failed: tointeger(x) IS NOT NULL}}
+  do_test func4-3.6 {
+    catchsql {
+      INSERT INTO t1 (x) VALUES ('1234bad');
+    }
+  } {1 {CHECK constraint failed: tointeger(x) IS NOT NULL}}
+  do_test func4-3.7 {
+    catchsql {
+      INSERT INTO t1 (x) VALUES ('1234.56bad');
+    }
+  } {1 {CHECK constraint failed: tointeger(x) IS NOT NULL}}
+  do_test func4-3.8 {
+    catchsql {
+      INSERT INTO t1 (x) VALUES (1234);
+    }
+  } {0 {}}
+  do_test func4-3.9 {
+    catchsql {
+      INSERT INTO t1 (x) VALUES (1234.56);
+    }
+  } {1 {CHECK constraint failed: tointeger(x) IS NOT NULL}}
+  do_test func4-3.10 {
+    catchsql {
+      INSERT INTO t1 (x) VALUES ('1234');
+    }
+  } {0 {}}
+  do_test func4-3.11 {
+    catchsql {
+      INSERT INTO t1 (x) VALUES ('1234.56');
+    }
+  } {1 {CHECK constraint failed: tointeger(x) IS NOT NULL}}
+  do_test func4-3.12 {
+    catchsql {
+      INSERT INTO t1 (x) VALUES (ZEROBLOB(4));
+    }
+  } {1 {CHECK constraint failed: tointeger(x) IS NOT NULL}}
+  do_test func4-3.13 {
+    catchsql {
+      INSERT INTO t1 (x) VALUES (X'');
+    }
+  } {1 {CHECK constraint failed: tointeger(x) IS NOT NULL}}
+  do_test func4-3.14 {
+    catchsql {
+      INSERT INTO t1 (x) VALUES (X'1234');
+    }
+  } {1 {CHECK constraint failed: tointeger(x) IS NOT NULL}}
+  do_test func4-3.15 {
+    catchsql {
+      INSERT INTO t1 (x) VALUES (X'12345678');
+    }
+  } {1 {CHECK constraint failed: tointeger(x) IS NOT NULL}}
+  do_test func4-3.16 {
+    catchsql {
+      INSERT INTO t1 (x) VALUES ('1234.00');
+    }
+  } {0 {}}
+  do_test func4-3.17 {
+    catchsql {
+      INSERT INTO t1 (x) VALUES (1234.00);
+    }
+  } {0 {}}
+  do_test func4-3.18 {
+    catchsql {
+      INSERT INTO t1 (x) VALUES ('-9223372036854775809');
+    }
+  } {1 {CHECK constraint failed: tointeger(x) IS NOT NULL}}
+  if {$highPrecision(1)} {
+    do_test func4-3.19 {
+      catchsql {
+        INSERT INTO t1 (x) VALUES (9223372036854775808);
+      }
+    } {1 {CHECK constraint failed: tointeger(x) IS NOT NULL}}
+  }
+  do_execsql_test func4-3.20 {
+    SELECT x FROM t1 WHERE x>0 ORDER BY x;
+  } {1234 1234 1234 1234}
+
+  ifcapable floatingpoint {
+    do_execsql_test func4-4.1 {
+      CREATE TABLE t2(
+        x REAL CHECK(toreal(x) IS NOT NULL)
+      );
+    } {}
+    do_test func4-4.2 {
+      catchsql {
+        INSERT INTO t2 (x) VALUES (NULL);
+      }
+    } {1 {CHECK constraint failed: toreal(x) IS NOT NULL}}
+    do_test func4-4.3 {
+      catchsql {
+        INSERT INTO t2 (x) VALUES (NULL);
+      }
+    } {1 {CHECK constraint failed: toreal(x) IS NOT NULL}}
+    do_test func4-4.4 {
+      catchsql {
+        INSERT INTO t2 (x) VALUES ('');
+      }
+    } {1 {CHECK constraint failed: toreal(x) IS NOT NULL}}
+    do_test func4-4.5 {
+      catchsql {
+        INSERT INTO t2 (x) VALUES ('bad');
+      }
+    } {1 {CHECK constraint failed: toreal(x) IS NOT NULL}}
+    do_test func4-4.6 {
+      catchsql {
+        INSERT INTO t2 (x) VALUES ('1234bad');
+      }
+    } {1 {CHECK constraint failed: toreal(x) IS NOT NULL}}
+    do_test func4-4.7 {
+      catchsql {
+        INSERT INTO t2 (x) VALUES ('1234.56bad');
+      }
+    } {1 {CHECK constraint failed: toreal(x) IS NOT NULL}}
+    do_test func4-4.8 {
+      catchsql {
+        INSERT INTO t2 (x) VALUES (1234);
+      }
+    } {0 {}}
+    do_test func4-4.9 {
+      catchsql {
+        INSERT INTO t2 (x) VALUES (1234.56);
+      }
+    } {0 {}}
+    do_test func4-4.10 {
+      catchsql {
+        INSERT INTO t2 (x) VALUES ('1234');
+      }
+    } {0 {}}
+    do_test func4-4.11 {
+      catchsql {
+        INSERT INTO t2 (x) VALUES ('1234.56');
+      }
+    } {0 {}}
+    do_test func4-4.12 {
+      catchsql {
+        INSERT INTO t2 (x) VALUES (ZEROBLOB(4));
+      }
+    } {1 {CHECK constraint failed: toreal(x) IS NOT NULL}}
+    do_test func4-4.13 {
+      catchsql {
+        INSERT INTO t2 (x) VALUES (X'');
+      }
+    } {1 {CHECK constraint failed: toreal(x) IS NOT NULL}}
+    do_test func4-4.14 {
+      catchsql {
+        INSERT INTO t2 (x) VALUES (X'1234');
+      }
+    } {1 {CHECK constraint failed: toreal(x) IS NOT NULL}}
+    do_test func4-4.15 {
+      catchsql {
+        INSERT INTO t2 (x) VALUES (X'12345678');
+      }
+    } {1 {CHECK constraint failed: toreal(x) IS NOT NULL}}
+    do_execsql_test func4-4.16 {
+      SELECT x FROM t2 ORDER BY x;
+    } {1234.0 1234.0 1234.56 1234.56}
+  }
+}
+
+ifcapable floatingpoint {
+  do_execsql_test func4-5.1 {
+    SELECT tointeger(toreal('1234'));
+  } {1234}
+  do_execsql_test func4-5.2 {
+    SELECT tointeger(toreal(-1));
+  } {-1}
+  do_execsql_test func4-5.3 {
+    SELECT tointeger(toreal(-0));
+  } {0}
+  do_execsql_test func4-5.4 {
+    SELECT tointeger(toreal(0));
+  } {0}
+  do_execsql_test func4-5.5 {
+    SELECT tointeger(toreal(1));
+  } {1}
+  do_execsql_test func4-5.6 {
+    SELECT tointeger(toreal(-9223372036854775808 - 1));
+  } {{}}
+  do_execsql_test func4-5.7 {
+    SELECT tointeger(toreal(-9223372036854775808));
+  } {{}}
+  if {$highPrecision(2)} {
+    do_execsql_test func4-5.8 {
+      SELECT tointeger(toreal(-9223372036854775808 + 1));
+    } {{}}
+  }
+  do_execsql_test func4-5.9 {
+    SELECT tointeger(toreal(-2147483648 - 1));
+  } {-2147483649}
+  do_execsql_test func4-5.10 {
+    SELECT tointeger(toreal(-2147483648));
+  } {-2147483648}
+  do_execsql_test func4-5.11 {
+    SELECT tointeger(toreal(-2147483648 + 1));
+  } {-2147483647}
+  do_execsql_test func4-5.12 {
+    SELECT tointeger(toreal(2147483647 - 1));
+  } {2147483646}
+  do_execsql_test func4-5.13 {
+    SELECT tointeger(toreal(2147483647));
+  } {2147483647}
+  do_execsql_test func4-5.14 {
+    SELECT tointeger(toreal(2147483647 + 1));
+  } {2147483648}
+  do_execsql_test func4-5.15 {
+    SELECT tointeger(toreal(9223372036854775807 - 1));
+  } {{}}
+  if {$highPrecision(1)} {
+    do_execsql_test func4-5.16 {
+      SELECT tointeger(toreal(9223372036854775807));
+    } {{}}
+    do_execsql_test func4-5.17 {
+      SELECT tointeger(toreal(9223372036854775807 + 1));
+    } {{}}
+  }
+  do_execsql_test func4-5.18 {
+    SELECT tointeger(toreal(4503599627370496 - 1));
+  } {4503599627370495}
+  do_execsql_test func4-5.19 {
+    SELECT tointeger(toreal(4503599627370496));
+  } {4503599627370496}
+  do_execsql_test func4-5.20 {
+    SELECT tointeger(toreal(4503599627370496 + 1));
+  } {4503599627370497}
+  do_execsql_test func4-5.21 {
+    SELECT tointeger(toreal(9007199254740992 - 1));
+  } {9007199254740991}
+  do_execsql_test func4-5.22 {
+    SELECT tointeger(toreal(9007199254740992));
+  } {9007199254740992}
+  if {$highPrecision(3)} {
+    do_execsql_test func4-5.23 {
+      SELECT tointeger(toreal(9007199254740992 + 1));
+    } {{}}
+  } else {
+    do_execsql_test func4-5.23 {
+      SELECT tointeger(toreal(9007199254740992 + 1));
+    } {9007199254740992}
+  }
+  do_execsql_test func4-5.24 {
+    SELECT tointeger(toreal(9007199254740992 + 2));
+  } {9007199254740994}
+  if {$highPrecision(1)} {
+    do_execsql_test func4-5.25 {
+      SELECT tointeger(toreal(9223372036854775808 - 1));
+    } {{}}
+    do_execsql_test func4-5.26 {
+      SELECT tointeger(toreal(9223372036854775808));
+    } {{}}
+    do_execsql_test func4-5.27 {
+      SELECT tointeger(toreal(9223372036854775808 + 1));
+    } {{}}
+  }
+  do_execsql_test func4-5.28 {
+    SELECT tointeger(toreal(18446744073709551616 - 1));
+  } {{}}
+  do_execsql_test func4-5.29 {
+    SELECT tointeger(toreal(18446744073709551616));
+  } {{}}
+  do_execsql_test func4-5.30 {
+    SELECT tointeger(toreal(18446744073709551616 + 1));
+  } {{}}
+}
+
+for {set i 0} {$i < 10} {incr i} {
+  if {$i == 8} continue
+  do_execsql_test func4-6.1.$i.1 [subst {
+    SELECT tointeger(x'[string repeat 01 $i]');
+  }] {{}}
+  ifcapable floatingpoint {
+    do_execsql_test func4-6.1.$i.2 [subst {
+      SELECT toreal(x'[string repeat 01 $i]');
+    }] {{}}
+  }
+}
+
+do_execsql_test func4-6.2.1 {
+  SELECT tointeger(x'0102030405060708');
+} {578437695752307201}
+do_execsql_test func4-6.2.2 {
+  SELECT tointeger(x'0807060504030201');
+} {72623859790382856}
+
+ifcapable floatingpoint {
+  do_execsql_test func4-6.3.1 {
+    SELECT toreal(x'ffefffffffffffff');
+  } {-1.7976931348623157e+308}
+  do_execsql_test func4-6.3.2 {
+    SELECT toreal(x'8010000000000000');
+  } {-2.2250738585072014e-308}
+  do_execsql_test func4-6.3.3 {
+    SELECT toreal(x'c000000000000000');
+  } {-2.0}
+  do_execsql_test func4-6.3.4 {
+    SELECT toreal(x'bff0000000000000');
+  } {-1.0}
+  do_execsql_test func4-6.3.5 {
+    SELECT toreal(x'8000000000000000');
+  } {-0.0}
+  do_execsql_test func4-6.3.6 {
+    SELECT toreal(x'0000000000000000');
+  } {0.0}
+  do_execsql_test func4-6.3.7 {
+    SELECT toreal(x'3ff0000000000000');
+  } {1.0}
+  do_execsql_test func4-6.3.8 {
+    SELECT toreal(x'4000000000000000');
+  } {2.0}
+  do_execsql_test func4-6.3.9 {
+    SELECT toreal(x'0010000000000000');
+  } {2.2250738585072014e-308}
+  do_execsql_test func4-6.3.10 {
+    SELECT toreal(x'7fefffffffffffff');
+  } {1.7976931348623157e+308}
+  do_execsql_test func4-6.3.11 {
+    SELECT toreal(x'8000000000000001');
+  } {-5e-324}
+  do_execsql_test func4-6.3.12 {
+    SELECT toreal(x'800fffffffffffff');
+  } {-2.225073858507201e-308}
+  do_execsql_test func4-6.3.13 {
+    SELECT toreal(x'0000000000000001');
+  } {5e-324}
+  do_execsql_test func4-6.3.14 {
+    SELECT toreal(x'000fffffffffffff');
+  } {2.225073858507201e-308}
+  do_execsql_test func4-6.3.15 {
+    SELECT toreal(x'fff0000000000000');
+  } {-Inf}
+  do_execsql_test func4-6.3.16 {
+    SELECT toreal(x'7ff0000000000000');
+  } {Inf}
+  do_execsql_test func4-6.3.17 {
+    SELECT toreal(x'fff8000000000000');
+  } {{}}
+  do_execsql_test func4-6.3.18 {
+    SELECT toreal(x'fff0000000000001');
+  } {{}}
+  do_execsql_test func4-6.3.19 {
+    SELECT toreal(x'fff7ffffffffffff');
+  } {{}}
+  do_execsql_test func4-6.3.20 {
+    SELECT toreal(x'7ff0000000000001');
+  } {{}}
+  do_execsql_test func4-6.3.21 {
+    SELECT toreal(x'7ff7ffffffffffff');
+  } {{}}
+  do_execsql_test func4-6.3.22 {
+    SELECT toreal(x'fff8000000000001');
+  } {{}}
+  do_execsql_test func4-6.3.23 {
+    SELECT toreal(x'ffffffffffffffff');
+  } {{}}
+  do_execsql_test func4-6.3.24 {
+    SELECT toreal(x'7ff8000000000000');
+  } {{}}
+  do_execsql_test func4-6.3.25 {
+    SELECT toreal(x'7fffffffffffffff');
+  } {{}}
+}
+
+set tcl_precision $saved_tcl_precision
+unset saved_tcl_precision
+finish_test
diff --git a/test/func5.test b/test/func5.test
new file mode 100644
index 0000000000000000000000000000000000000000..8c3dd05c609bef067b99a8193a98ff6d5136aa24
--- /dev/null
+++ b/test/func5.test
@@ -0,0 +1,64 @@
+# 2013-11-21
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+# Testing of function factoring and the SQLITE_DETERMINISTIC flag.
+#
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Verify that constant string expressions that get factored into initializing
+# code are not reused between function parameters and other values in the
+# VDBE program, as the function might have changed the encoding.
+#
+do_execsql_test func5-1.1 {
+  PRAGMA encoding=UTF16le;
+  CREATE TABLE t1(x,a,b,c);
+  INSERT INTO t1 VALUES(1,'ab','cd',1);
+  INSERT INTO t1 VALUES(2,'gh','ef',5);
+  INSERT INTO t1 VALUES(3,'pqr','fuzzy',99);
+  INSERT INTO t1 VALUES(4,'abcdefg','xy',22);
+  INSERT INTO t1 VALUES(5,'shoe','mayer',2953);
+  SELECT x FROM t1 WHERE c=instr('abcdefg',b) OR a='abcdefg' ORDER BY +x;
+} {2 4}
+do_execsql_test func5-1.2 {
+  SELECT x FROM t1 WHERE a='abcdefg' OR c=instr('abcdefg',b) ORDER BY +x;
+} {2 4}
+
+# Verify that SQLITE_DETERMINISTIC functions get factored out of the
+# evaluation loop whereas non-deterministic functions do not.  counter1()
+# is marked as non-deterministic and so is not factored out of the loop,
+# and it really is non-deterministic, returning a different result each
+# time.  But counter2() is marked as deterministic, so it does get factored
+# out of the loop.  counter2() has the same implementation as counter1(),
+# returning a different result on each invocation, but because it is 
+# only invoked once outside of the loop, it appears to return the same
+# result multiple times.
+#
+do_execsql_test func5-2.1 {
+  CREATE TABLE t2(x,y);
+  INSERT INTO t2 VALUES(1,2),(3,4),(5,6),(7,8);
+  SELECT x, y FROM t2 WHERE x+5=5+x ORDER BY +x;
+} {1 2 3 4 5 6 7 8}
+sqlite3_create_function db
+do_execsql_test func5-2.2 {
+  SELECT x, y FROM t2
+   WHERE x+counter1('hello')=counter1('hello')+x
+   ORDER BY +x;
+} {}
+set cvalue [db one {SELECT counter2('hello')+1}]
+do_execsql_test func5-2.3 {
+  SELECT x, y FROM t2
+   WHERE x+counter2('hello')=$cvalue+x
+   ORDER BY +x;
+} {1 2 3 4 5 6 7 8}
+
+
+finish_test
diff --git a/test/func6.test b/test/func6.test
new file mode 100644
index 0000000000000000000000000000000000000000..acca490f334d71f6a1a302a2e741cc39a7f635a6
--- /dev/null
+++ b/test/func6.test
@@ -0,0 +1,183 @@
+# 2017-12-16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+# Test cases for the sqlite_offset() function.
+#
+# Some of the tests in this file depend on the exact placement of content
+# within b-tree pages.  Such placement is at the implementations discretion,
+# and so it is possible for results to change from one release to the next.
+#
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable !offset_sql_func {
+  finish_test
+  return
+}
+
+set bNullTrim 0
+ifcapable null_trim {
+  set bNullTrim 1
+}
+
+do_execsql_test func6-100 {
+  PRAGMA page_size=4096;
+  PRAGMA auto_vacuum=NONE;
+  CREATE TABLE t1(a,b,c,d);
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<100)
+   INSERT INTO t1(a,b,c,d) SELECT printf('abc%03x',x), x, 1000-x, NULL FROM c;
+  CREATE INDEX t1a ON t1(a);
+  CREATE INDEX t1bc ON t1(b,c);
+  CREATE TABLE t2(x TEXT PRIMARY KEY, y) WITHOUT ROWID;
+  INSERT INTO t2(x,y) SELECT a, b FROM t1;
+}
+
+# Load the contents of $file from disk and return it encoded as a hex
+# string.
+proc loadhex {file} {
+  set fd [open $file]
+  fconfigure $fd -translation binary
+  set data [read $fd]
+  close $fd
+  binary encode hex $data 
+}
+
+# Each argument is either an integer between 0 and 65535, a text value, or
+# an empty string representing an SQL NULL. This command builds an SQLite
+# record containing the values passed as arguments and returns it encoded
+# as a hex string.
+proc hexrecord {args} {
+  set hdr ""
+  set body ""
+
+  if {$::bNullTrim} {
+    while {[llength $args] && [lindex $args end]=={}} {
+      set args [lrange $args 0 end-1]
+    }
+  }
+
+  foreach x $args {
+    if {$x==""} {
+      append hdr 00
+    } elseif {[string is integer $x]==0} {
+      set n [string length $x]
+      append hdr [format %02x [expr $n*2 + 13]]
+      append body [binary encode hex $x]
+    } elseif {$x == 0} {
+      append hdr 08
+    } elseif {$x == 1} {
+      append hdr 09
+    } elseif {$x <= 127} {
+      append hdr 01
+      append body [format %02x $x]
+    } else {
+      append hdr 02
+      append body [format %04x $x]
+    }
+  }
+  set res [format %02x [expr 1 + [string length $hdr]/2]]
+  append res $hdr
+  append res $body
+}
+
+# Argument $off is an offset into the database image encoded as a hex string
+# in argument $hexdb. This command returns 0 if the offset contains the hex
+# $hexrec, or throws an exception otherwise.
+#
+proc offset_contains_record {off hexdb hexrec} {
+  set n [string length $hexrec]
+  set off [expr $off*2]
+  if { [string compare $hexrec [string range $hexdb $off [expr $off+$n-1]]] } {
+    error "record not found!"
+  }
+  return 0
+}
+
+# This command is the implementation of SQL function "offrec()". The first
+# argument to this is an offset value. The remaining values are used to
+# formulate an SQLite record. If database file test.db does not contain
+# an equivalent record at the specified offset, an exception is thrown.
+# Otherwise, 0 is returned.
+#
+proc offrec {args} {
+  set offset [lindex $args 0]
+  set rec [hexrecord {*}[lrange $args 1 end]]
+  offset_contains_record $offset $::F $rec
+}
+set F [loadhex test.db]
+db func offrec offrec
+
+# Test the sanity of the tests.
+if {$bNullTrim} {
+  set offset 8180
+} else {
+  set offset 8179
+}
+do_execsql_test func6-105 {
+  SELECT sqlite_offset(d) FROM t1 ORDER BY rowid LIMIT 1;
+} $offset
+do_test func6-106 {
+  set r [hexrecord abc001 1 999 {}]
+  offset_contains_record $offset $F $r
+} 0
+
+set z100 [string trim [string repeat "0 " 100]]
+
+# Test offsets within table b-tree t1.
+do_execsql_test func6-110 {
+  SELECT offrec(sqlite_offset(d), a, b, c, d) FROM t1 ORDER BY rowid
+} $z100
+
+do_execsql_test func6-120 {
+  SELECT a, typeof(sqlite_offset(+a)) FROM t1
+   ORDER BY rowid LIMIT 2;
+} {abc001 null abc002 null}
+
+# Test offsets within index b-tree t1a.
+do_execsql_test func6-130 {
+  SELECT offrec(sqlite_offset(a), a, rowid) FROM t1 ORDER BY a
+} $z100
+
+# Test offsets within table b-tree t1 with a temp b-tree ORDER BY.
+do_execsql_test func6-140 {
+  SELECT offrec(sqlite_offset(d), a, b, c, d) FROM t1 ORDER BY a
+} $z100
+
+# Test offsets from both index t1a and table t1 in the same query.
+do_execsql_test func6-150 {
+  SELECT offrec(sqlite_offset(a), a, rowid),
+         offrec(sqlite_offset(d), a, b, c, d)
+  FROM t1 ORDER BY a
+} [concat $z100 $z100]
+
+# Test offsets from both index t1bc and table t1 in the same query.
+do_execsql_test func6-160 {
+  SELECT offrec(sqlite_offset(b), b, c, rowid),
+         offrec(sqlite_offset(c), b, c, rowid),
+         offrec(sqlite_offset(d), a, b, c, d)
+  FROM t1
+  ORDER BY b
+} [concat $z100 $z100 $z100]
+
+# Test offsets in WITHOUT ROWID table t2.
+do_execsql_test func6-200 {
+  SELECT offrec( sqlite_offset(y), x, y ) FROM t2 ORDER BY x
+} $z100
+
+# 2022-03-14 dbsqlfuzz 474499f3977d95fdf2dbcd99c50be1d0082e4c92
+reset_db
+do_execsql_test func6-300 {
+  CREATE TABLE t2(a INT, b INT PRIMARY KEY) WITHOUT ROWID;
+  CREATE INDEX x3 ON t2(b);
+  CREATE TABLE t1(a INT PRIMARY KEY, b TEXT);
+  SELECT * FROM t1 WHERE a IN (SELECT sqlite_offset(b) FROM t2);
+} {}
+
+finish_test
diff --git a/test/func7.test b/test/func7.test
new file mode 100644
index 0000000000000000000000000000000000000000..6026b557f5b64381d0fb9755d762fa308b6449a0
--- /dev/null
+++ b/test/func7.test
@@ -0,0 +1,251 @@
+# 2020-12-07
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+# Test cases for SQL functions based off the standard math library
+#
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable !mathlib {
+  finish_test
+  return
+}
+
+do_execsql_test func7-100 {
+  SELECT ceil(99.9), ceiling(-99.01), floor(17), floor(-17.99);
+} {100.0 -99.0 17 -18.0}
+do_execsql_test func7-110 {
+  SELECT quote(ceil(NULL)), ceil('-99.99');
+} {NULL -99.0}
+do_execsql_test func7-200 {
+  SELECT round(ln(5),2), log(100.0), log(100), log(2,'256');
+} {1.61 2.0 2.0 8.0}
+do_execsql_test func7-210 {
+  SELECT ln(-5), log(-5,100.0);
+} {{} {}}
+
+# Test cases derived from PostgreSQL documentation
+#
+do_execsql_test func7-pg-100 {
+  SELECT abs(-17.4)
+} {17.4}
+do_execsql_test func7-pg-110 {
+  SELECT ceil(42.2)
+} {43.0}
+do_execsql_test func7-pg-120 {
+  SELECT ceil(-42.2)
+} {-42.0}
+do_execsql_test func7-pg-130 {
+  SELECT round(exp(1.0),7)
+} {2.7182818}
+do_execsql_test func7-pg-140 {
+  SELECT floor(42.8)
+} {42.0}
+do_execsql_test func7-pg-150 {
+  SELECT floor(-42.8)
+} {-43.0}
+do_execsql_test func7-pg-160 {
+  SELECT round(ln(2.0),7)
+} {0.6931472}
+do_execsql_test func7-pg-170 {
+  SELECT log(100.0)
+} {2.0}
+do_execsql_test func7-pg-180 {
+  SELECT log10(1000.0)
+} {3.0}
+do_execsql_test func7-pg-181 {
+  SELECT format('%.30f', log10(100.0) );
+} {2.000000000000000000000000000000}
+do_execsql_test func7-pg-182 {
+  SELECT format('%.30f', ln(exp(2.0)) );
+} {2.000000000000000000000000000000}
+do_execsql_test func7-pg-190 {
+  SELECT log(2.0, 64.0)
+} {6.0}
+do_execsql_test func7-pg-200 {
+   SELECT mod(9,4);
+} {1.0}
+do_execsql_test func7-pg-210 {
+   SELECT round(pi(),7);
+} {3.1415927}
+do_execsql_test func7-pg-220 {
+   SELECT power(9,3);
+} {729.0}
+do_execsql_test func7-pg-230 {
+   SELECT round(radians(45.0),7);
+} {0.7853982}
+do_execsql_test func7-pg-240 {
+   SELECT round(42.4);
+} {42.0}
+do_execsql_test func7-pg-250 {
+   SELECT round(42.4382,2);
+} {42.44}
+do_execsql_test func7-pg-260 {
+   SELECT sign(-8.4);
+} {-1}
+do_execsql_test func7-pg-270 {
+   SELECT round( sqrt(2), 7);
+} {1.4142136}
+do_execsql_test func7-pg-280 {
+   SELECT trunc(42.8), trunc(-42.8);
+} {42.0 -42.0}
+do_execsql_test func7-pg-300 {
+   SELECT acos(1);
+} {0.0}
+do_execsql_test func7-pg-301 {
+   SELECT format('%f',degrees(acos(0.5)));
+} {60.0}
+do_execsql_test func7-pg-310 {
+   SELECT round( asin(1), 7);
+} {1.5707963}
+do_execsql_test func7-pg-311 {
+   SELECT format('%f',degrees( asin(0.5) ));
+} {30.0}
+do_execsql_test func7-pg-320 {
+   SELECT round( atan(1), 7);
+} {0.7853982}
+do_execsql_test func7-pg-321 {
+   SELECT degrees( atan(1) );
+} {45.0}
+do_execsql_test func7-pg-330 {
+   SELECT round( atan2(1,0), 7);
+} {1.5707963}
+do_execsql_test func7-pg-331 {
+   SELECT degrees( atan2(1,0) );
+} {90.0}
+do_execsql_test func7-pg-400 {
+   SELECT cos(0);
+} {1.0}
+do_execsql_test func7-pg-401 {
+   SELECT cos( radians(60.0) );
+} {0.5}
+do_execsql_test func7-pg-400 {
+   SELECT cos(0);
+} {1.0}
+do_execsql_test func7-pg-410 {
+   SELECT round( sin(1), 7);
+} {0.841471}
+do_execsql_test func7-pg-411 {
+   SELECT sin( radians(30) );
+} {0.5}
+do_execsql_test func7-pg-420 {
+   SELECT round( tan(1), 7);
+} {1.5574077}
+do_execsql_test func7-pg-421 {
+   SELECT round(tan( radians(45) ),10);
+} {1.0}
+do_execsql_test func7-pg-500 {
+   SELECT round( sinh(1), 7);
+} {1.1752012}
+do_execsql_test func7-pg-510 {
+   SELECT round( cosh(0), 7);
+} {1.0}
+do_execsql_test func7-pg-520 {
+   SELECT round( tanh(1), 7);
+} {0.7615942}
+do_execsql_test func7-pg-530 {
+   SELECT round( asinh(1), 7);
+} {0.8813736}
+do_execsql_test func7-pg-540 {
+   SELECT round( acosh(1), 7);
+} {0.0}
+do_execsql_test func7-pg-550 {
+   SELECT round( atanh(0.5), 7);
+} {0.5493061}
+
+# Test cases derived from MySQL documentation
+#
+do_execsql_test func7-mysql-100 {
+   SELECT acos(1);
+} {0.0}
+do_execsql_test func7-mysql-110 {
+   SELECT acos(1.0001);
+} {{}}
+do_execsql_test func7-mysql-120 {
+   SELECT round( acos(0.0), 7);
+} {1.5707963}
+do_execsql_test func7-mysql-130 {
+   SELECT round( asin(0.2), 7);
+} {0.2013579}
+do_execsql_test func7-mysql-140 {
+   SELECT asin('foo');
+} {{}}  ;# Note: MySQL returns 0 here, not NULL.
+         # SQLite deliberately returns NULL.
+         # SQLServer and Oracle throw an error.
+do_execsql_test func7-mysql-150 {
+   SELECT round( atan(2), 7), round( atan(-2), 7);
+} {1.1071487 -1.1071487}
+do_execsql_test func7-mysql-160 {
+   SELECT round( atan2(-2,2), 7), round( atan2(pi(),0), 7);
+} {-0.7853982 1.5707963}
+do_execsql_test func7-mysql-170 {
+   SELECT ceiling(1.23), ceiling(-1.23);
+} {2.0 -1.0}
+do_execsql_test func7-mysql-180 {
+   SELECT cos(pi());
+} {-1.0}
+do_execsql_test func7-mysql-190 {
+   SELECT degrees(pi()), degrees(pi()/2);
+} {180.0 90.0}
+do_execsql_test func7-mysql-190 {
+   SELECT round( exp(2), 7), round( exp(-2), 7), exp(0);
+} {7.3890561 0.1353353 1.0}
+do_execsql_test func7-mysql-200 {
+   SELECT floor(1.23), floor(-1.23);
+} {1.0 -2.0}
+do_execsql_test func7-mysql-210 {
+   SELECT round(ln(2),7), quote(ln(-2));
+} {0.6931472 NULL}
+#do_execsql_test func7-mysql-220 {
+#   SELECT round(log(2),7), log(-2);
+#} {0.6931472 NULL}
+# log() means natural logarithm in MySQL
+do_execsql_test func7-mysql-230 {
+   SELECT log(2,65536), log(10,100), quote(log(1,100)), quote(log(0,100));
+} {16.0 2.0 NULL NULL}
+do_execsql_test func7-mysql-240 {
+   SELECT log2(65536), quote(log2(-100)), quote(log2(0));
+} {16.0 NULL NULL}
+do_execsql_test func7-mysql-250 {
+   SELECT round(log10(2),7), log10(100), quote(log10(-100));
+} {0.30103 2.0 NULL}
+do_execsql_test func7-mysql-260 {
+   SELECT mod(234,10), 253%7, mod(29,9), 29%9;
+} {4.0 1 2.0 2}
+do_execsql_test func7-mysql-270 {
+   SELECT mod(34.5,3);
+} {1.5}
+do_execsql_test func7-mysql-280 {
+   SELECT pow(2,2), pow(2,-2);
+} {4.0 0.25}
+do_execsql_test func7-mysql-281 {
+   SELECT power(2,2), power(2,-2);
+} {4.0 0.25}
+do_execsql_test func7-mysql-290 {
+   SELECT round(radians(90),7);
+} {1.5707963}
+do_execsql_test func7-mysql-300 {
+   SELECT sign(-32), sign(0), sign(234);
+} {-1 0 1}
+do_execsql_test func7-mysql-310 {
+   SELECT sin(pi()) BETWEEN -1.0e-15 AND 1.0e-15;
+} {1}
+do_execsql_test func7-mysql-320 {
+   SELECT sqrt(4), round(sqrt(20),7), quote(sqrt(-16));
+} {2.0 4.472136 NULL}
+do_execsql_test func7-mysql-330 {
+   SELECT tan(pi()) BETWEEN -1.0e-15 AND 1.0e-15;
+} {1}
+do_execsql_test func7-mysql-331 {
+   SELECT round(tan(pi()+1),7);
+} {1.5574077}
+
+
+finish_test
diff --git a/test/func8.test b/test/func8.test
new file mode 100644
index 0000000000000000000000000000000000000000..348dfb7f66b309d850fc59e3cdfc5d3b3cf48b98
--- /dev/null
+++ b/test/func8.test
@@ -0,0 +1,64 @@
+# 2023-03-17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+# Test cases for SQL functions with names that are the same as join
+# keywords:  CROSS FULL INNER LEFT NATURAL OUTER RIGHT
+#
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+proc joinx {args} {return [join $args -]}
+db func cross {joinx cross}
+db func full {joinx full}
+db func inner {joinx inner}
+db func left {joinx left}
+db func natural {joinx natural}
+db func outer {joinx outer}
+db func right {joinx right}
+do_execsql_test func8-100 {
+  CREATE TABLE cross(cross,full,inner,left,natural,outer,right);
+  CREATE TABLE full(cross,full,inner,left,natural,outer,right);
+  CREATE TABLE inner(cross,full,inner,left,natural,outer,right);
+  CREATE TABLE left(cross,full,inner,left,natural,outer,right);
+  CREATE TABLE natural(cross,full,inner,left,natural,outer,right);
+  CREATE TABLE outer(cross,full,inner,left,natural,outer,right);
+  CREATE TABLE right(cross,full,inner,left,natural,outer,right);
+  INSERT INTO cross VALUES(1,2,3,4,5,6,7);
+  INSERT INTO full VALUES(1,2,3,4,5,6,7);
+  INSERT INTO inner VALUES(1,2,3,4,5,6,7);
+  INSERT INTO left VALUES(1,2,3,4,5,6,7);
+  INSERT INTO natural VALUES(1,2,3,4,5,6,7);
+  INSERT INTO outer VALUES(1,2,3,4,5,6,7);
+  INSERT INTO right VALUES(1,2,3,4,5,6,7);
+}
+do_execsql_test func8-110 {
+  SELECT cross(cross,full,inner,left,natural,outer,right) FROM cross;
+} cross-1-2-3-4-5-6-7
+do_execsql_test func8-120 {
+  SELECT full(cross,full,inner,left,natural,outer,right) FROM full;
+} full-1-2-3-4-5-6-7
+do_execsql_test func8-130 {
+  SELECT inner(cross,full,inner,left,natural,outer,right) FROM inner;
+} inner-1-2-3-4-5-6-7
+do_execsql_test func8-140 {
+  SELECT left(cross,full,inner,left,natural,outer,right) FROM left;
+} left-1-2-3-4-5-6-7
+do_execsql_test func8-150 {
+  SELECT natural(cross,full,inner,left,natural,outer,right) FROM natural;
+} natural-1-2-3-4-5-6-7
+do_execsql_test func8-160 {
+  SELECT outer(cross,full,inner,left,natural,outer,right) FROM outer;
+} outer-1-2-3-4-5-6-7
+do_execsql_test func8-170 {
+  SELECT right(cross,full,inner,left,natural,outer,right) FROM right;
+} right-1-2-3-4-5-6-7
+
+finish_test
diff --git a/test/func9.test b/test/func9.test
new file mode 100644
index 0000000000000000000000000000000000000000..6cf9fc31ecdc7afffd3d1fd95e9e87851f3bc7cf
--- /dev/null
+++ b/test/func9.test
@@ -0,0 +1,40 @@
+# 2023-08-29
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+# Test cases for SQL newer functions
+#
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_execsql_test func9-100 {
+  SELECT concat('abc',123,null,'xyz');
+} {abc123xyz}
+do_execsql_test func9-110 {
+  SELECT typeof(concat(null));
+} {text}
+do_catchsql_test func9-120 {
+  SELECT concat();
+} {1 {wrong number of arguments to function concat()}}
+do_execsql_test func9-130 {
+  SELECT concat_ws(',',1,2,3,4,5,6,7,8,NULL,9,10,11,12);
+} {1,2,3,4,5,6,7,8,9,10,11,12}
+do_execsql_test func9-140 {
+  SELECT concat_ws(NULL,1,2,3,4,5,6,7,8,NULL,9,10,11,12);
+} {{}}
+do_catchsql_test func9-150 {
+  SELECT concat_ws();
+} {1 {wrong number of arguments to function concat_ws()}}
+do_catchsql_test func9-160 {
+  SELECT concat_ws(',');
+} {1 {wrong number of arguments to function concat_ws()}}
+
+
+finish_test
diff --git a/test/fuzz-oss1.test b/test/fuzz-oss1.test
new file mode 100644
index 0000000000000000000000000000000000000000..46feeb62ebc0ae7b2fdca424e4e44e4c37df5369
--- /dev/null
+++ b/test/fuzz-oss1.test
@@ -0,0 +1,2007 @@
+# 2012 May 21
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+# NB:  Portions of this file are extracted from open-source projects
+# covered by permissive licenses.  Use of this file for testing is clearly
+# allowed.  However, do not incorporate the text of this one file into
+# end-products without checking the licenses on the open-source projects
+# from which this code was extracted.  This warning applies to this one
+# file only - not the bulk of the SQLite source code and tests.
+#
+#***********************************************************************
+#
+# This file contains large and complex schemas obtained from open-source
+# software projects.  The schemas are parsed just to make sure that nothing
+# breaks in the parser logic.
+#
+# These tests merely verify that the parse occurs without error.
+# No attempt is made to verify correct operation of the resulting schema
+# and statements.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Schema and query extracted from Skrooge.org.  
+#
+do_test fuzz-oss1-skrooge {
+  db eval {
+CREATE TABLE parameters (id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,t_uuid_parent TEXT NOT NULL DEFAULT '',t_name TEXT NOT NULL,t_value TEXT NOT NULL DEFAULT '',b_blob BLOB,d_lastmodifdate DATE NOT NULL DEFAULT CURRENT_TIMESTAMP,i_tmp INTEGER NOT NULL DEFAULT 0);
+CREATE TABLE doctransaction (id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,t_name TEXT NOT NULL,t_mode VARCHAR(1) DEFAULT 'U' CHECK (t_mode IN ('U', 'R')),d_date DATE NOT NULL,t_savestep VARCHAR(1) DEFAULT 'N' CHECK (t_savestep IN ('Y', 'N')),i_parent INTEGER, t_refreshviews VARCHAR(1) DEFAULT 'Y' CHECK (t_refreshviews IN ('Y', 'N')));
+CREATE TABLE doctransactionitem (id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT, rd_doctransaction_id INTEGER NOT NULL,i_object_id INTEGER NOT NULL,t_object_table TEXT NOT NULL,t_action VARCHAR(1) DEFAULT 'I' CHECK (t_action IN ('I', 'U', 'D')),t_sqlorder TEXT NOT NULL DEFAULT '');
+CREATE TABLE doctransactionmsg (id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT, rd_doctransaction_id INTEGER NOT NULL,t_message TEXT NOT NULL DEFAULT '',t_popup VARCHAR(1) DEFAULT 'Y' CHECK (t_popup IN ('Y', 'N')));
+CREATE TABLE unit(id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,t_name TEXT NOT NULL,t_symbol TEXT NOT NULL DEFAULT '',t_country TEXT NOT NULL DEFAULT '',t_type VARCHAR(1) NOT NULL DEFAULT 'C' CHECK (t_type IN ('1', '2', 'C', 'S', 'I', 'O')),t_internet_code TEXT NOT NULL DEFAULT '',i_nbdecimal INT NOT NULL DEFAULT 2,rd_unit_id INTEGER NOT NULL DEFAULT 0, t_source TEXT NOT NULL DEFAULT '');
+CREATE TABLE unitvalue(id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,rd_unit_id INTEGER NOT NULL,d_date DATE NOT NULL,f_quantity FLOAT NOT NULL CHECK (f_quantity>=0));
+CREATE TABLE bank (id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,t_name TEXT NOT NULL DEFAULT '',t_bank_number TEXT NOT NULL DEFAULT '',t_icon TEXT NOT NULL DEFAULT '');
+CREATE TABLE interest(id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,rd_account_id INTEGER NOT NULL,d_date DATE NOT NULL,f_rate FLOAT NOT NULL CHECK (f_rate>=0),t_income_value_date_mode VARCHAR(1) NOT NULL DEFAULT 'F' CHECK (t_income_value_date_mode IN ('F', '0', '1', '2', '3', '4', '5')),t_expenditure_value_date_mode VARCHAR(1) NOT NULL DEFAULT 'F' CHECK (t_expenditure_value_date_mode IN ('F', '0', '1', '2', '3', '4', '5')),t_base VARCHAR(3) NOT NULL DEFAULT '24' CHECK (t_base IN ('24', '360', '365')));
+CREATE TABLE operation(id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,i_group_id INTEGER NOT NULL DEFAULT 0,i_number INTEGER DEFAULT 0 CHECK (i_number>=0),d_date DATE NOT NULL DEFAULT '0000-00-00',rd_account_id INTEGER NOT NULL,t_mode TEXT NOT NULL DEFAULT '',r_payee_id INTEGER NOT NULL DEFAULT 0,t_comment TEXT NOT NULL DEFAULT '',rc_unit_id INTEGER NOT NULL,t_status VARCHAR(1) NOT NULL DEFAULT 'N' CHECK (t_status IN ('N', 'P', 'Y')),t_bookmarked VARCHAR(1) NOT NULL DEFAULT 'N' CHECK (t_bookmarked IN ('Y', 'N')),t_imported VARCHAR(1) NOT NULL DEFAULT 'N' CHECK (t_imported IN ('Y', 'N', 'P', 'T')),t_template VARCHAR(1) NOT NULL DEFAULT 'N' CHECK (t_template IN ('Y', 'N')),t_import_id TEXT NOT NULL DEFAULT '',i_tmp INTEGER NOT NULL DEFAULT 0,r_recurrentoperation_id INTEGER NOT NULL DEFAULT 0);
+CREATE TABLE operationbalance(id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,f_balance FLOAT NOT NULL DEFAULT 0,r_operation_id INTEGER NOT NULL);
+CREATE TABLE refund (id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,t_name TEXT NOT NULL DEFAULT '',t_comment TEXT NOT NULL DEFAULT '',t_close VARCHAR(1) DEFAULT 'N' CHECK (t_close IN ('Y', 'N')));
+CREATE TABLE payee (id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,t_name TEXT NOT NULL DEFAULT '',t_address TEXT NOT NULL DEFAULT '', t_bookmarked VARCHAR(1) NOT NULL DEFAULT 'N' CHECK (t_bookmarked IN ('Y', 'N')));
+CREATE TABLE suboperation(id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,t_comment TEXT NOT NULL DEFAULT '',rd_operation_id INTEGER NOT NULL,r_category_id INTEGER NOT NULL DEFAULT 0,f_value FLOAT NOT NULL DEFAULT 0.0,i_tmp INTEGER NOT NULL DEFAULT 0,r_refund_id INTEGER NOT NULL DEFAULT 0, t_formula TEXT NOT NULL DEFAULT '');
+CREATE TABLE rule (id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,t_description TEXT NOT NULL DEFAULT '',t_definition TEXT NOT NULL DEFAULT '',t_action_description TEXT NOT NULL DEFAULT '',t_action_definition TEXT NOT NULL DEFAULT '',t_action_type VARCHAR(1) DEFAULT 'S' CHECK (t_action_type IN ('S', 'U', 'A')),t_bookmarked VARCHAR(1) NOT NULL DEFAULT 'N' CHECK (t_bookmarked IN ('Y', 'N')),f_sortorder FLOAT);
+CREATE TABLE budget (id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,rc_category_id INTEGER NOT NULL DEFAULT 0,t_including_subcategories TEXT NOT NULL DEFAULT 'N' CHECK (t_including_subcategories IN ('Y', 'N')),f_budgeted FLOAT NOT NULL DEFAULT 0.0,f_budgeted_modified FLOAT NOT NULL DEFAULT 0.0,f_transferred FLOAT NOT NULL DEFAULT 0.0,i_year INTEGER NOT NULL DEFAULT 2010,i_month INTEGER NOT NULL DEFAULT 0 CHECK (i_month>=0 AND i_month<=12));
+CREATE TABLE budgetcategory(id INTEGER NOT NULL DEFAULT 0,id_category INTEGER NOT NULL DEFAULT 0);
+CREATE TABLE budgetrule (id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,rc_category_id INTEGER NOT NULL DEFAULT 0,t_category_condition TEXT NOT NULL DEFAULT 'Y' CHECK (t_category_condition IN ('Y', 'N')),t_year_condition TEXT NOT NULL DEFAULT 'Y' CHECK (t_year_condition IN ('Y', 'N')),i_year INTEGER NOT NULL DEFAULT 2010,i_month INTEGER NOT NULL DEFAULT 0 CHECK (i_month>=0 AND i_month<=12),t_month_condition TEXT NOT NULL DEFAULT 'Y' CHECK (t_month_condition IN ('Y', 'N')),i_condition INTEGER NOT NULL DEFAULT 0 CHECK (i_condition IN (-1,0,1)),f_quantity FLOAT NOT NULL DEFAULT 0.0,t_absolute TEXT NOT NULL DEFAULT 'Y' CHECK (t_absolute IN ('Y', 'N')),rc_category_id_target INTEGER NOT NULL DEFAULT 0,t_category_target TEXT NOT NULL DEFAULT 'Y' CHECK (t_category_target IN ('Y', 'N')),t_rule TEXT NOT NULL DEFAULT 'N' CHECK (t_rule IN ('N', 'C', 'Y')));
+CREATE TABLE "recurrentoperation" (id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,d_date DATE NOT NULL DEFAULT '0000-00-00',rd_operation_id INTEGER NOT NULL,i_period_increment INTEGER NOT NULL DEFAULT 1 CHECK (i_period_increment>=0),t_period_unit TEXT NOT NULL DEFAULT 'M' CHECK (t_period_unit IN ('D', 'W', 'M', 'Y')),t_auto_write VARCHAR(1) DEFAULT 'Y' CHECK (t_auto_write IN ('Y', 'N')),i_auto_write_days INTEGER NOT NULL DEFAULT 5 CHECK (i_auto_write_days>=0),t_warn VARCHAR(1) DEFAULT 'Y' CHECK (t_warn IN ('Y', 'N')),i_warn_days INTEGER NOT NULL DEFAULT 5 CHECK (i_warn_days>=0),t_times VARCHAR(1) DEFAULT 'N' CHECK (t_times IN ('Y', 'N')),i_nb_times INTEGER NOT NULL DEFAULT 1 CHECK (i_nb_times>=0));
+CREATE TABLE "category" (id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,t_name TEXT NOT NULL DEFAULT '' CHECK (t_name NOT LIKE '% > %'),t_fullname TEXT,rd_category_id INT,t_bookmarked VARCHAR(1) NOT NULL DEFAULT 'N' CHECK (t_bookmarked IN ('Y', 'N')));
+CREATE TABLE "account"(id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,t_name TEXT NOT NULL,t_number TEXT NOT NULL DEFAULT '',t_agency_number TEXT NOT NULL DEFAULT '',t_agency_address TEXT NOT NULL DEFAULT '',t_comment TEXT NOT NULL DEFAULT '',t_close VARCHAR(1) DEFAULT 'N' CHECK (t_close IN ('Y', 'N')),t_type VARCHAR(1) NOT NULL DEFAULT 'C' CHECK (t_type IN ('C', 'D', 'A', 'I', 'L', 'W', 'O')),t_bookmarked VARCHAR(1) NOT NULL DEFAULT 'N' CHECK (t_bookmarked IN ('Y', 'N')),rd_bank_id INTEGER NOT NULL);
+CREATE TABLE "node" (id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,t_name TEXT NOT NULL DEFAULT '' CHECK (t_name NOT LIKE '% > %'),t_fullname TEXT,t_icon TEXT DEFAULT '',f_sortorder FLOAT,t_autostart VARCHAR(1) DEFAULT 'N' CHECK (t_autostart IN ('Y', 'N')),t_data TEXT,rd_node_id INT CONSTRAINT fk_id REFERENCES node(id) ON DELETE CASCADE);
+CREATE TABLE vm_category_display_tmp(
+  id INT,
+  t_name TEXT,
+  t_fullname TEXT,
+  rd_category_id INT,
+  t_bookmarked TEXT,
+  i_NBOPERATIONS,
+  f_REALCURRENTAMOUNT
+);
+CREATE TABLE vm_budget_tmp(
+  id INT,
+  rc_category_id INT,
+  t_including_subcategories TEXT,
+  f_budgeted REAL,
+  f_budgeted_modified REAL,
+  f_transferred REAL,
+  i_year INT,
+  i_month INT,
+  t_CATEGORY,
+  t_PERIOD,
+  f_CURRENTAMOUNT,
+  t_RULES
+);
+CREATE INDEX idx_doctransaction_parent ON doctransaction (i_parent);
+CREATE INDEX idx_doctransactionitem_i_object_id ON doctransactionitem (i_object_id);
+CREATE INDEX idx_doctransactionitem_t_object_table ON doctransactionitem (t_object_table);
+CREATE INDEX idx_doctransactionitem_t_action ON doctransactionitem (t_action);
+CREATE INDEX idx_doctransactionitem_rd_doctransaction_id ON doctransactionitem (rd_doctransaction_id);
+CREATE INDEX idx_doctransactionitem_optimization ON doctransactionitem (rd_doctransaction_id, i_object_id, t_object_table, t_action, id);
+CREATE INDEX idx_unit_unit_id ON unitvalue(rd_unit_id);
+CREATE INDEX idx_account_bank_id ON account(rd_bank_id);
+CREATE INDEX idx_account_type ON account(t_type);
+CREATE INDEX idx_category_category_id ON category(rd_category_id);
+CREATE INDEX idx_category_t_fullname ON category(t_fullname);
+CREATE INDEX idx_operation_account_id ON operation (rd_account_id);
+CREATE INDEX idx_operation_tmp1_found_transfert ON operation (rc_unit_id, d_date);
+CREATE INDEX idx_operation_grouped_operation_id ON operation (i_group_id);
+CREATE INDEX idx_operation_i_number ON operation (i_number);
+CREATE INDEX idx_operation_i_tmp ON operation (i_tmp);
+CREATE INDEX idx_operation_rd_account_id ON operation (rd_account_id);
+CREATE INDEX idx_operation_rc_unit_id ON operation (rc_unit_id);
+CREATE INDEX idx_operation_t_status ON operation (t_status);
+CREATE INDEX idx_operation_t_import_id ON operation (t_import_id);
+CREATE INDEX idx_operation_t_template ON operation (t_template);
+CREATE INDEX idx_operation_d_date ON operation (d_date);
+CREATE INDEX idx_operationbalance_operation_id ON operationbalance (r_operation_id);
+CREATE INDEX idx_suboperation_operation_id ON suboperation (rd_operation_id);
+CREATE INDEX idx_suboperation_i_tmp ON suboperation (i_tmp);
+CREATE INDEX idx_suboperation_category_id ON suboperation (r_category_id);
+CREATE INDEX idx_suboperation_refund_id_id ON suboperation (r_refund_id);
+CREATE INDEX idx_recurrentoperation_rd_operation_id ON recurrentoperation (rd_operation_id);
+CREATE INDEX idx_refund_close ON refund(t_close);
+CREATE INDEX idx_interest_account_id ON interest (rd_account_id);
+CREATE INDEX idx_rule_action_type ON rule(t_action_type);
+CREATE INDEX idx_budget_category_id ON budget(rc_category_id);
+CREATE INDEX idx_budgetcategory_id ON budgetcategory (id);
+CREATE INDEX idx_budgetcategory_id_category ON budgetcategory (id_category);
+CREATE UNIQUE INDEX uidx_parameters_uuid_parent_name ON parameters (t_uuid_parent, t_name);
+CREATE UNIQUE INDEX uidx_node_parent_id_name ON node(t_name,rd_node_id);
+CREATE UNIQUE INDEX uidx_node_fullname ON node(t_fullname);
+CREATE UNIQUE INDEX uidx_unit_name ON unit(t_name);
+CREATE UNIQUE INDEX uidx_unit_symbol ON unit(t_symbol);
+CREATE UNIQUE INDEX uidx_unitvalue ON unitvalue(d_date,rd_unit_id);
+CREATE UNIQUE INDEX uidx_bank_name ON bank(t_name);
+CREATE UNIQUE INDEX uidx_account_name ON account(t_name);
+CREATE UNIQUE INDEX uidx_category_parent_id_name ON category(t_name,rd_category_id);
+CREATE UNIQUE INDEX uidx_category_fullname ON  category(t_fullname);
+CREATE UNIQUE INDEX uidx_refund_name ON refund(t_name);
+CREATE UNIQUE INDEX uidx_payee_name ON payee(t_name);
+CREATE UNIQUE INDEX uidx_interest ON interest(d_date,rd_account_id);
+CREATE UNIQUE INDEX uidx_budget ON budget(i_year,i_month, rc_category_id);
+CREATE VIEW v_node AS SELECT * from node;
+CREATE VIEW v_node_displayname AS SELECT *, t_fullname AS t_displayname from node;
+CREATE VIEW v_parameters_displayname AS SELECT *, t_name AS t_displayname from parameters;
+CREATE TRIGGER fkdc_parameters_parameters_uuid BEFORE DELETE ON parameters FOR EACH ROW BEGIN     DELETE FROM parameters WHERE parameters.t_uuid_parent=OLD.id||'-'||'parameters'; END;
+CREATE TRIGGER fkdc_node_parameters_uuid BEFORE DELETE ON node FOR EACH ROW BEGIN     DELETE FROM parameters WHERE parameters.t_uuid_parent=OLD.id||'-'||'node'; END;
+CREATE TRIGGER cpt_node_fullname1 AFTER INSERT ON node BEGIN UPDATE node SET t_fullname=CASE WHEN new.rd_node_id IS NULL OR new.rd_node_id='' OR new.rd_node_id=0 THEN new.t_name ELSE (SELECT c.t_fullname from node c where c.id=new.rd_node_id)||' > '||new.t_name END WHERE id=new.id;END;
+CREATE TRIGGER cpt_node_fullname2 AFTER UPDATE OF t_name, rd_node_id ON node BEGIN UPDATE node SET t_fullname=CASE WHEN new.rd_node_id IS NULL OR new.rd_node_id='' OR new.rd_node_id=0 THEN new.t_name ELSE (SELECT c.t_fullname from node c where c.id=new.rd_node_id)||' > '||new.t_name END WHERE id=new.id;UPDATE node SET t_name=t_name WHERE rd_node_id=new.id;END;
+CREATE TRIGGER fki_account_bank_rd_bank_id_id BEFORE INSERT ON account FOR EACH ROW BEGIN   SELECT RAISE(ABORT, 'Impossible d''ajouter un objet (bank est utilisé par account)
+Nom de la contrainte : fki_account_bank_rd_bank_id_id')   WHERE NEW.rd_bank_id!=0 AND NEW.rd_bank_id!='' AND (SELECT id FROM bank WHERE id = NEW.rd_bank_id) IS NULL; END;
+CREATE TRIGGER fku_account_bank_rd_bank_id_id BEFORE UPDATE ON account FOR EACH ROW BEGIN     SELECT RAISE(ABORT, 'Impossible de modifier un objet (bank est utilisé par account)
+Nom de la contrainte : fku_account_bank_rd_bank_id_id')       WHERE NEW.rd_bank_id!=0 AND NEW.rd_bank_id!='' AND (SELECT id FROM bank WHERE id = NEW.rd_bank_id) IS NULL; END;
+CREATE TRIGGER fkdc_bank_account_id_rd_bank_id BEFORE DELETE ON bank FOR EACH ROW BEGIN     DELETE FROM account WHERE account.rd_bank_id = OLD.id; END;
+CREATE TRIGGER fki_budget_category_rc_category_id_id BEFORE INSERT ON budget FOR EACH ROW BEGIN   SELECT RAISE(ABORT, 'Impossible d''ajouter un objet (category est utilisé par budget)
+Nom de la contrainte : fki_budget_category_rc_category_id_id')   WHERE NEW.rc_category_id!=0 AND NEW.rc_category_id!='' AND (SELECT id FROM category WHERE id = NEW.rc_category_id) IS NULL; END;
+CREATE TRIGGER fku_budget_category_rc_category_id_id BEFORE UPDATE ON budget FOR EACH ROW BEGIN     SELECT RAISE(ABORT, 'Impossible de modifier un objet (category est utilisé par budget)
+Nom de la contrainte : fku_budget_category_rc_category_id_id')       WHERE NEW.rc_category_id!=0 AND NEW.rc_category_id!='' AND (SELECT id FROM category WHERE id = NEW.rc_category_id) IS NULL; END;
+CREATE TRIGGER fkd_budget_category_rc_category_id_id BEFORE DELETE ON category FOR EACH ROW BEGIN     SELECT RAISE(ABORT, 'Impossible de détruire un objet (category est utilisé par budget)
+Nom de la contrainte : fkd_budget_category_rc_category_id_id')     WHERE (SELECT rc_category_id FROM budget WHERE rc_category_id = OLD.id) IS NOT NULL; END;
+CREATE TRIGGER fki_budgetrule_category_rc_category_id_id BEFORE INSERT ON budgetrule FOR EACH ROW BEGIN   SELECT RAISE(ABORT, 'Impossible d''ajouter un objet (category est utilisé par budgetrule)
+Nom de la contrainte : fki_budgetrule_category_rc_category_id_id')   WHERE NEW.rc_category_id!=0 AND NEW.rc_category_id!='' AND (SELECT id FROM category WHERE id = NEW.rc_category_id) IS NULL; END;
+CREATE TRIGGER fku_budgetrule_category_rc_category_id_id BEFORE UPDATE ON budgetrule FOR EACH ROW BEGIN     SELECT RAISE(ABORT, 'Impossible de modifier un objet (category est utilisé par budgetrule)
+Nom de la contrainte : fku_budgetrule_category_rc_category_id_id')       WHERE NEW.rc_category_id!=0 AND NEW.rc_category_id!='' AND (SELECT id FROM category WHERE id = NEW.rc_category_id) IS NULL; END;
+CREATE TRIGGER fkd_budgetrule_category_rc_category_id_id BEFORE DELETE ON category FOR EACH ROW BEGIN     SELECT RAISE(ABORT, 'Impossible de détruire un objet (category est utilisé par budgetrule)
+Nom de la contrainte : fkd_budgetrule_category_rc_category_id_id')     WHERE (SELECT rc_category_id FROM budgetrule WHERE rc_category_id = OLD.id) IS NOT NULL; END;
+CREATE TRIGGER fki_budgetrule_category_rc_category_id_target_id BEFORE INSERT ON budgetrule FOR EACH ROW BEGIN   SELECT RAISE(ABORT, 'Impossible d''ajouter un objet (category est utilisé par budgetrule)
+Nom de la contrainte : fki_budgetrule_category_rc_category_id_target_id')   WHERE NEW.rc_category_id_target!=0 AND NEW.rc_category_id_target!='' AND (SELECT id FROM category WHERE id = NEW.rc_category_id_target) IS NULL; END;
+CREATE TRIGGER fku_budgetrule_category_rc_category_id_target_id BEFORE UPDATE ON budgetrule FOR EACH ROW BEGIN     SELECT RAISE(ABORT, 'Impossible de modifier un objet (category est utilisé par budgetrule)
+Nom de la contrainte : fku_budgetrule_category_rc_category_id_target_id')       WHERE NEW.rc_category_id_target!=0 AND NEW.rc_category_id_target!='' AND (SELECT id FROM category WHERE id = NEW.rc_category_id_target) IS NULL; END;
+CREATE TRIGGER fkd_budgetrule_category_rc_category_id_target_id BEFORE DELETE ON category FOR EACH ROW BEGIN     SELECT RAISE(ABORT, 'Impossible de détruire un objet (category est utilisé par budgetrule)
+Nom de la contrainte : fkd_budgetrule_category_rc_category_id_target_id')     WHERE (SELECT rc_category_id_target FROM budgetrule WHERE rc_category_id_target = OLD.id) IS NOT NULL; END;
+CREATE TRIGGER fki_category_category_rd_category_id_id BEFORE INSERT ON category FOR EACH ROW BEGIN   SELECT RAISE(ABORT, 'Impossible d''ajouter un objet (category est utilisé par category)
+Nom de la contrainte : fki_category_category_rd_category_id_id')   WHERE NEW.rd_category_id!=0 AND NEW.rd_category_id!='' AND (SELECT id FROM category WHERE id = NEW.rd_category_id) IS NULL; END;
+CREATE TRIGGER fku_category_category_rd_category_id_id BEFORE UPDATE ON category FOR EACH ROW BEGIN     SELECT RAISE(ABORT, 'Impossible de modifier un objet (category est utilisé par category)
+Nom de la contrainte : fku_category_category_rd_category_id_id')       WHERE NEW.rd_category_id!=0 AND NEW.rd_category_id!='' AND (SELECT id FROM category WHERE id = NEW.rd_category_id) IS NULL; END;
+CREATE TRIGGER fkdc_category_category_id_rd_category_id BEFORE DELETE ON category FOR EACH ROW BEGIN     DELETE FROM category WHERE category.rd_category_id = OLD.id; END;
+CREATE TRIGGER fki_doctransactionitem_doctransaction_rd_doctransaction_id_id BEFORE INSERT ON doctransactionitem FOR EACH ROW BEGIN   SELECT RAISE(ABORT, 'Impossible d''ajouter un objet (doctransaction est utilisé par doctransactionitem)
+Nom de la contrainte : fki_doctransactionitem_doctransaction_rd_doctransaction_id_id')   WHERE NEW.rd_doctransaction_id!=0 AND NEW.rd_doctransaction_id!='' AND (SELECT id FROM doctransaction WHERE id = NEW.rd_doctransaction_id) IS NULL; END;
+CREATE TRIGGER fku_doctransactionitem_doctransaction_rd_doctransaction_id_id BEFORE UPDATE ON doctransactionitem FOR EACH ROW BEGIN     SELECT RAISE(ABORT, 'Impossible de modifier un objet (doctransaction est utilisé par doctransactionitem)
+Nom de la contrainte : fku_doctransactionitem_doctransaction_rd_doctransaction_id_id')       WHERE NEW.rd_doctransaction_id!=0 AND NEW.rd_doctransaction_id!='' AND (SELECT id FROM doctransaction WHERE id = NEW.rd_doctransaction_id) IS NULL; END;
+CREATE TRIGGER fkdc_doctransaction_doctransactionitem_id_rd_doctransaction_id BEFORE DELETE ON doctransaction FOR EACH ROW BEGIN     DELETE FROM doctransactionitem WHERE doctransactionitem.rd_doctransaction_id = OLD.id; END;
+CREATE TRIGGER fki_doctransactionmsg_doctransaction_rd_doctransaction_id_id BEFORE INSERT ON doctransactionmsg FOR EACH ROW BEGIN   SELECT RAISE(ABORT, 'Impossible d''ajouter un objet (doctransaction est utilisé par doctransactionmsg)
+Nom de la contrainte : fki_doctransactionmsg_doctransaction_rd_doctransaction_id_id')   WHERE NEW.rd_doctransaction_id!=0 AND NEW.rd_doctransaction_id!='' AND (SELECT id FROM doctransaction WHERE id = NEW.rd_doctransaction_id) IS NULL; END;
+CREATE TRIGGER fku_doctransactionmsg_doctransaction_rd_doctransaction_id_id BEFORE UPDATE ON doctransactionmsg FOR EACH ROW BEGIN     SELECT RAISE(ABORT, 'Impossible de modifier un objet (doctransaction est utilisé par doctransactionmsg)
+Nom de la contrainte : fku_doctransactionmsg_doctransaction_rd_doctransaction_id_id')       WHERE NEW.rd_doctransaction_id!=0 AND NEW.rd_doctransaction_id!='' AND (SELECT id FROM doctransaction WHERE id = NEW.rd_doctransaction_id) IS NULL; END;
+CREATE TRIGGER fkdc_doctransaction_doctransactionmsg_id_rd_doctransaction_id BEFORE DELETE ON doctransaction FOR EACH ROW BEGIN     DELETE FROM doctransactionmsg WHERE doctransactionmsg.rd_doctransaction_id = OLD.id; END;
+CREATE TRIGGER fki_interest_account_rd_account_id_id BEFORE INSERT ON interest FOR EACH ROW BEGIN   SELECT RAISE(ABORT, 'Impossible d''ajouter un objet (account est utilisé par interest)
+Nom de la contrainte : fki_interest_account_rd_account_id_id')   WHERE NEW.rd_account_id!=0 AND NEW.rd_account_id!='' AND (SELECT id FROM account WHERE id = NEW.rd_account_id) IS NULL; END;
+CREATE TRIGGER fku_interest_account_rd_account_id_id BEFORE UPDATE ON interest FOR EACH ROW BEGIN     SELECT RAISE(ABORT, 'Impossible de modifier un objet (account est utilisé par interest)
+Nom de la contrainte : fku_interest_account_rd_account_id_id')       WHERE NEW.rd_account_id!=0 AND NEW.rd_account_id!='' AND (SELECT id FROM account WHERE id = NEW.rd_account_id) IS NULL; END;
+CREATE TRIGGER fkdc_account_interest_id_rd_account_id BEFORE DELETE ON account FOR EACH ROW BEGIN     DELETE FROM interest WHERE interest.rd_account_id = OLD.id; END;
+CREATE TRIGGER fki_node_node_rd_node_id_id BEFORE INSERT ON node FOR EACH ROW BEGIN   SELECT RAISE(ABORT, 'Impossible d''ajouter un objet (node est utilisé par node)
+Nom de la contrainte : fki_node_node_rd_node_id_id')   WHERE NEW.rd_node_id!=0 AND NEW.rd_node_id!='' AND (SELECT id FROM node WHERE id = NEW.rd_node_id) IS NULL; END;
+CREATE TRIGGER fku_node_node_rd_node_id_id BEFORE UPDATE ON node FOR EACH ROW BEGIN     SELECT RAISE(ABORT, 'Impossible de modifier un objet (node est utilisé par node)
+Nom de la contrainte : fku_node_node_rd_node_id_id')       WHERE NEW.rd_node_id!=0 AND NEW.rd_node_id!='' AND (SELECT id FROM node WHERE id = NEW.rd_node_id) IS NULL; END;
+CREATE TRIGGER fkdc_node_node_id_rd_node_id BEFORE DELETE ON node FOR EACH ROW BEGIN     DELETE FROM node WHERE node.rd_node_id = OLD.id; END;
+CREATE TRIGGER fki_operation_account_rd_account_id_id BEFORE INSERT ON operation FOR EACH ROW BEGIN   SELECT RAISE(ABORT, 'Impossible d''ajouter un objet (account est utilisé par operation)
+Nom de la contrainte : fki_operation_account_rd_account_id_id')   WHERE NEW.rd_account_id!=0 AND NEW.rd_account_id!='' AND (SELECT id FROM account WHERE id = NEW.rd_account_id) IS NULL; END;
+CREATE TRIGGER fku_operation_account_rd_account_id_id BEFORE UPDATE ON operation FOR EACH ROW BEGIN     SELECT RAISE(ABORT, 'Impossible de modifier un objet (account est utilisé par operation)
+Nom de la contrainte : fku_operation_account_rd_account_id_id')       WHERE NEW.rd_account_id!=0 AND NEW.rd_account_id!='' AND (SELECT id FROM account WHERE id = NEW.rd_account_id) IS NULL; END;
+CREATE TRIGGER fkdc_account_operation_id_rd_account_id BEFORE DELETE ON account FOR EACH ROW BEGIN     DELETE FROM operation WHERE operation.rd_account_id = OLD.id; END;
+CREATE TRIGGER fki_operation_payee_r_payee_id_id BEFORE INSERT ON operation FOR EACH ROW BEGIN   SELECT RAISE(ABORT, 'Impossible d''ajouter un objet (payee est utilisé par operation)
+Nom de la contrainte : fki_operation_payee_r_payee_id_id')   WHERE NEW.r_payee_id!=0 AND NEW.r_payee_id!='' AND (SELECT id FROM payee WHERE id = NEW.r_payee_id) IS NULL; END;
+CREATE TRIGGER fku_operation_payee_r_payee_id_id BEFORE UPDATE ON operation FOR EACH ROW BEGIN     SELECT RAISE(ABORT, 'Impossible de modifier un objet (payee est utilisé par operation)
+Nom de la contrainte : fku_operation_payee_r_payee_id_id')       WHERE NEW.r_payee_id!=0 AND NEW.r_payee_id!='' AND (SELECT id FROM payee WHERE id = NEW.r_payee_id) IS NULL; END;
+CREATE TRIGGER fkd_operation_payee_r_payee_id_id BEFORE DELETE ON payee FOR EACH ROW BEGIN     UPDATE operation SET r_payee_id=0 WHERE r_payee_id=OLD.id; END;
+CREATE TRIGGER fki_operation_unit_rc_unit_id_id BEFORE INSERT ON operation FOR EACH ROW BEGIN   SELECT RAISE(ABORT, 'Impossible d''ajouter un objet (unit est utilisé par operation)
+Nom de la contrainte : fki_operation_unit_rc_unit_id_id')   WHERE NEW.rc_unit_id!=0 AND NEW.rc_unit_id!='' AND (SELECT id FROM unit WHERE id = NEW.rc_unit_id) IS NULL; END;
+CREATE TRIGGER fku_operation_unit_rc_unit_id_id BEFORE UPDATE ON operation FOR EACH ROW BEGIN     SELECT RAISE(ABORT, 'Impossible de modifier un objet (unit est utilisé par operation)
+Nom de la contrainte : fku_operation_unit_rc_unit_id_id')       WHERE NEW.rc_unit_id!=0 AND NEW.rc_unit_id!='' AND (SELECT id FROM unit WHERE id = NEW.rc_unit_id) IS NULL; END;
+CREATE TRIGGER fkd_operation_unit_rc_unit_id_id BEFORE DELETE ON unit FOR EACH ROW BEGIN     SELECT RAISE(ABORT, 'Impossible de détruire un objet (unit est utilisé par operation)
+Nom de la contrainte : fkd_operation_unit_rc_unit_id_id')     WHERE (SELECT rc_unit_id FROM operation WHERE rc_unit_id = OLD.id) IS NOT NULL; END;
+CREATE TRIGGER fki_operation_recurrentoperation_r_recurrentoperation_id_id BEFORE INSERT ON operation FOR EACH ROW BEGIN   SELECT RAISE(ABORT, 'Impossible d''ajouter un objet (recurrentoperation est utilisé par operation)
+Nom de la contrainte : fki_operation_recurrentoperation_r_recurrentoperation_id_id')   WHERE NEW.r_recurrentoperation_id!=0 AND NEW.r_recurrentoperation_id!='' AND (SELECT id FROM recurrentoperation WHERE id = NEW.r_recurrentoperation_id) IS NULL; END;
+CREATE TRIGGER fku_operation_recurrentoperation_r_recurrentoperation_id_id BEFORE UPDATE ON operation FOR EACH ROW BEGIN     SELECT RAISE(ABORT, 'Impossible de modifier un objet (recurrentoperation est utilisé par operation)
+Nom de la contrainte : fku_operation_recurrentoperation_r_recurrentoperation_id_id')       WHERE NEW.r_recurrentoperation_id!=0 AND NEW.r_recurrentoperation_id!='' AND (SELECT id FROM recurrentoperation WHERE id = NEW.r_recurrentoperation_id) IS NULL; END;
+CREATE TRIGGER fkd_operation_recurrentoperation_r_recurrentoperation_id_id BEFORE DELETE ON recurrentoperation FOR EACH ROW BEGIN     UPDATE operation SET r_recurrentoperation_id=0 WHERE r_recurrentoperation_id=OLD.id; END;
+CREATE TRIGGER fki_operationbalance_operation_r_operation_id_id BEFORE INSERT ON operationbalance FOR EACH ROW BEGIN   SELECT RAISE(ABORT, 'Impossible d''ajouter un objet (operation est utilisé par operationbalance)
+Nom de la contrainte : fki_operationbalance_operation_r_operation_id_id')   WHERE NEW.r_operation_id!=0 AND NEW.r_operation_id!='' AND (SELECT id FROM operation WHERE id = NEW.r_operation_id) IS NULL; END;
+CREATE TRIGGER fku_operationbalance_operation_r_operation_id_id BEFORE UPDATE ON operationbalance FOR EACH ROW BEGIN     SELECT RAISE(ABORT, 'Impossible de modifier un objet (operation est utilisé par operationbalance)
+Nom de la contrainte : fku_operationbalance_operation_r_operation_id_id')       WHERE NEW.r_operation_id!=0 AND NEW.r_operation_id!='' AND (SELECT id FROM operation WHERE id = NEW.r_operation_id) IS NULL; END;
+CREATE TRIGGER fkd_operationbalance_operation_r_operation_id_id BEFORE DELETE ON operation FOR EACH ROW BEGIN     UPDATE operationbalance SET r_operation_id=0 WHERE r_operation_id=OLD.id; END;
+CREATE TRIGGER fki_recurrentoperation_operation_rd_operation_id_id BEFORE INSERT ON recurrentoperation FOR EACH ROW BEGIN   SELECT RAISE(ABORT, 'Impossible d''ajouter un objet (operation est utilisé par recurrentoperation)
+Nom de la contrainte : fki_recurrentoperation_operation_rd_operation_id_id')   WHERE NEW.rd_operation_id!=0 AND NEW.rd_operation_id!='' AND (SELECT id FROM operation WHERE id = NEW.rd_operation_id) IS NULL; END;
+CREATE TRIGGER fku_recurrentoperation_operation_rd_operation_id_id BEFORE UPDATE ON recurrentoperation FOR EACH ROW BEGIN     SELECT RAISE(ABORT, 'Impossible de modifier un objet (operation est utilisé par recurrentoperation)
+Nom de la contrainte : fku_recurrentoperation_operation_rd_operation_id_id')       WHERE NEW.rd_operation_id!=0 AND NEW.rd_operation_id!='' AND (SELECT id FROM operation WHERE id = NEW.rd_operation_id) IS NULL; END;
+CREATE TRIGGER fkdc_operation_recurrentoperation_id_rd_operation_id BEFORE DELETE ON operation FOR EACH ROW BEGIN     DELETE FROM recurrentoperation WHERE recurrentoperation.rd_operation_id = OLD.id; END;
+CREATE TRIGGER fki_suboperation_operation_rd_operation_id_id BEFORE INSERT ON suboperation FOR EACH ROW BEGIN   SELECT RAISE(ABORT, 'Impossible d''ajouter un objet (operation est utilisé par suboperation)
+Nom de la contrainte : fki_suboperation_operation_rd_operation_id_id')   WHERE NEW.rd_operation_id!=0 AND NEW.rd_operation_id!='' AND (SELECT id FROM operation WHERE id = NEW.rd_operation_id) IS NULL; END;
+CREATE TRIGGER fku_suboperation_operation_rd_operation_id_id BEFORE UPDATE ON suboperation FOR EACH ROW BEGIN     SELECT RAISE(ABORT, 'Impossible de modifier un objet (operation est utilisé par suboperation)
+Nom de la contrainte : fku_suboperation_operation_rd_operation_id_id')       WHERE NEW.rd_operation_id!=0 AND NEW.rd_operation_id!='' AND (SELECT id FROM operation WHERE id = NEW.rd_operation_id) IS NULL; END;
+CREATE TRIGGER fkdc_operation_suboperation_id_rd_operation_id BEFORE DELETE ON operation FOR EACH ROW BEGIN     DELETE FROM suboperation WHERE suboperation.rd_operation_id = OLD.id; END;
+CREATE TRIGGER fki_suboperation_category_r_category_id_id BEFORE INSERT ON suboperation FOR EACH ROW BEGIN   SELECT RAISE(ABORT, 'Impossible d''ajouter un objet (category est utilisé par suboperation)
+Nom de la contrainte : fki_suboperation_category_r_category_id_id')   WHERE NEW.r_category_id!=0 AND NEW.r_category_id!='' AND (SELECT id FROM category WHERE id = NEW.r_category_id) IS NULL; END;
+CREATE TRIGGER fku_suboperation_category_r_category_id_id BEFORE UPDATE ON suboperation FOR EACH ROW BEGIN     SELECT RAISE(ABORT, 'Impossible de modifier un objet (category est utilisé par suboperation)
+Nom de la contrainte : fku_suboperation_category_r_category_id_id')       WHERE NEW.r_category_id!=0 AND NEW.r_category_id!='' AND (SELECT id FROM category WHERE id = NEW.r_category_id) IS NULL; END;
+CREATE TRIGGER fkd_suboperation_category_r_category_id_id BEFORE DELETE ON category FOR EACH ROW BEGIN     UPDATE suboperation SET r_category_id=0 WHERE r_category_id=OLD.id; END;
+CREATE TRIGGER fki_suboperation_refund_r_refund_id_id BEFORE INSERT ON suboperation FOR EACH ROW BEGIN   SELECT RAISE(ABORT, 'Impossible d''ajouter un objet (refund est utilisé par suboperation)
+Nom de la contrainte : fki_suboperation_refund_r_refund_id_id')   WHERE NEW.r_refund_id!=0 AND NEW.r_refund_id!='' AND (SELECT id FROM refund WHERE id = NEW.r_refund_id) IS NULL; END;
+CREATE TRIGGER fku_suboperation_refund_r_refund_id_id BEFORE UPDATE ON suboperation FOR EACH ROW BEGIN     SELECT RAISE(ABORT, 'Impossible de modifier un objet (refund est utilisé par suboperation)
+Nom de la contrainte : fku_suboperation_refund_r_refund_id_id')       WHERE NEW.r_refund_id!=0 AND NEW.r_refund_id!='' AND (SELECT id FROM refund WHERE id = NEW.r_refund_id) IS NULL; END;
+CREATE TRIGGER fkd_suboperation_refund_r_refund_id_id BEFORE DELETE ON refund FOR EACH ROW BEGIN     UPDATE suboperation SET r_refund_id=0 WHERE r_refund_id=OLD.id; END;
+CREATE TRIGGER fki_unit_unit_rd_unit_id_id BEFORE INSERT ON unit FOR EACH ROW BEGIN   SELECT RAISE(ABORT, 'Impossible d''ajouter un objet (unit est utilisé par unit)
+Nom de la contrainte : fki_unit_unit_rd_unit_id_id')   WHERE NEW.rd_unit_id!=0 AND NEW.rd_unit_id!='' AND (SELECT id FROM unit WHERE id = NEW.rd_unit_id) IS NULL; END;
+CREATE TRIGGER fku_unit_unit_rd_unit_id_id BEFORE UPDATE ON unit FOR EACH ROW BEGIN     SELECT RAISE(ABORT, 'Impossible de modifier un objet (unit est utilisé par unit)
+Nom de la contrainte : fku_unit_unit_rd_unit_id_id')       WHERE NEW.rd_unit_id!=0 AND NEW.rd_unit_id!='' AND (SELECT id FROM unit WHERE id = NEW.rd_unit_id) IS NULL; END;
+CREATE TRIGGER fkdc_unit_unit_id_rd_unit_id BEFORE DELETE ON unit FOR EACH ROW BEGIN     DELETE FROM unit WHERE unit.rd_unit_id = OLD.id; END;
+CREATE TRIGGER fki_unitvalue_unit_rd_unit_id_id BEFORE INSERT ON unitvalue FOR EACH ROW BEGIN   SELECT RAISE(ABORT, 'Impossible d''ajouter un objet (unit est utilisé par unitvalue)
+Nom de la contrainte : fki_unitvalue_unit_rd_unit_id_id')   WHERE NEW.rd_unit_id!=0 AND NEW.rd_unit_id!='' AND (SELECT id FROM unit WHERE id = NEW.rd_unit_id) IS NULL; END;
+CREATE TRIGGER fku_unitvalue_unit_rd_unit_id_id BEFORE UPDATE ON unitvalue FOR EACH ROW BEGIN     SELECT RAISE(ABORT, 'Impossible de modifier un objet (unit est utilisé par unitvalue)
+Nom de la contrainte : fku_unitvalue_unit_rd_unit_id_id')       WHERE NEW.rd_unit_id!=0 AND NEW.rd_unit_id!='' AND (SELECT id FROM unit WHERE id = NEW.rd_unit_id) IS NULL; END;
+CREATE TRIGGER fkdc_unit_unitvalue_id_rd_unit_id BEFORE DELETE ON unit FOR EACH ROW BEGIN     DELETE FROM unitvalue WHERE unitvalue.rd_unit_id = OLD.id; END;
+CREATE TRIGGER fkd_vm_budget_tmp_category_rc_category_id_id BEFORE DELETE ON category FOR EACH ROW BEGIN     SELECT RAISE(ABORT, 'Impossible de détruire un objet (category est utilisé par vm_budget_tmp)
+Nom de la contrainte : fkd_vm_budget_tmp_category_rc_category_id_id')     WHERE (SELECT rc_category_id FROM vm_budget_tmp WHERE rc_category_id = OLD.id) IS NOT NULL; END;
+CREATE TRIGGER fkdc_category_vm_category_display_tmp_id_rd_category_id BEFORE DELETE ON category FOR EACH ROW BEGIN     DELETE FROM vm_category_display_tmp WHERE vm_category_display_tmp.rd_category_id = OLD.id; END;
+CREATE VIEW v_unit_displayname AS SELECT *, t_name||' ('||t_symbol||')' AS t_displayname FROM unit;
+CREATE VIEW v_unit_tmp1 AS SELECT *,(SELECT count(*) FROM unitvalue s WHERE s.rd_unit_id=unit.id) AS i_NBVALUES, (CASE WHEN unit.rd_unit_id=0 THEN '' ELSE (SELECT (CASE WHEN s.t_symbol!='' THEN s.t_symbol ELSE s.t_name END) FROM unit s WHERE s.id=unit.rd_unit_id) END) AS t_UNIT,(CASE unit.t_type WHEN '1' THEN 'Monnaie principale' WHEN '2' THEN 'Monnaie secondaire' WHEN 'C' THEN 'Monnaie' WHEN 'S' THEN 'Action' WHEN 'I' THEN 'Indice' ELSE 'Objet' END) AS t_TYPENLS, (SELECT MIN(s.d_date) FROM  unitvalue s WHERE s.rd_unit_id=unit.id) AS d_MINDATE, (SELECT MAX(s.d_date) FROM  unitvalue s WHERE s.rd_unit_id=unit.id) AS d_MAXDATE from unit;
+CREATE VIEW v_unit_tmp2 AS SELECT *,CASE WHEN v_unit_tmp1.t_type='1' THEN 1 ELSE IFNULL((SELECT s.f_quantity FROM unitvalue s WHERE s.rd_unit_id=v_unit_tmp1.id AND s.d_date=v_unit_tmp1.d_MAXDATE),1) END AS f_LASTVALUE from v_unit_tmp1;
+CREATE VIEW v_unit AS SELECT *,v_unit_tmp2.f_LASTVALUE*IFNULL((SELECT s2.f_LASTVALUE FROM v_unit_tmp2 s2 WHERE s2.id=v_unit_tmp2.rd_unit_id) , 1) AS f_CURRENTAMOUNT from v_unit_tmp2;
+CREATE VIEW v_unitvalue_displayname AS SELECT *, (SELECT t_displayname FROM v_unit_displayname WHERE unitvalue.rd_unit_id=v_unit_displayname.id)||' '||STRFTIME('%d/%m/%Y',d_date) AS t_displayname FROM unitvalue;
+CREATE VIEW v_unitvalue AS SELECT * FROM unitvalue;
+CREATE VIEW v_suboperation AS SELECT * FROM suboperation;
+CREATE VIEW v_operation_numbers AS SELECT DISTINCT i_number, rd_account_id FROM operation;
+CREATE VIEW v_operation_next_numbers AS SELECT T1.i_number+1 AS i_number FROM v_operation_numbers AS T1 LEFT OUTER JOIN v_operation_numbers T2 ON T2.rd_account_id=T1.rd_account_id AND T2.i_number=T1.i_number+1 WHERE T1.i_number!=0 AND (T2.i_number IS NULL) ORDER BY T1.i_number;
+CREATE VIEW v_operation_tmp1 AS SELECT *,(SELECT t_name FROM payee s WHERE s.id=operation.r_payee_id) AS t_PAYEE,(SELECT TOTAL(s.f_value) FROM suboperation s WHERE s.rd_operation_id=operation.ID) AS f_QUANTITY,(SELECT count(*) FROM suboperation s WHERE s.rd_operation_id=operation.ID) AS i_NBSUBCATEGORY FROM operation;
+CREATE VIEW v_operation AS SELECT *,(SELECT s.id FROM suboperation s WHERE s.rd_operation_id=v_operation_tmp1.id AND ABS(s.f_value)=(SELECT MAX(ABS(s2.f_value)) FROM suboperation s2 WHERE s2.rd_operation_id=v_operation_tmp1.id)) AS i_MOSTIMPSUBOP,((SELECT s.f_CURRENTAMOUNT FROM v_unit s WHERE s.id=v_operation_tmp1.rc_unit_id)*v_operation_tmp1.f_QUANTITY) AS f_CURRENTAMOUNT, (CASE WHEN v_operation_tmp1.i_group_id<>0 AND EXISTS (SELECT 1 FROM account a WHERE v_operation_tmp1.rd_account_id=a.id AND a.t_type<>'L') AND EXISTS (SELECT 1 FROM v_operation_tmp1 op2, account a WHERE op2.i_group_id=v_operation_tmp1.i_group_id AND op2.rd_account_id=a.id AND a.t_type<>'L' AND op2.rc_unit_id=v_operation_tmp1.rc_unit_id AND op2.f_QUANTITY=-v_operation_tmp1.f_QUANTITY) THEN 'Y' ELSE 'N' END) AS t_TRANSFER FROM v_operation_tmp1;
+CREATE VIEW v_operation_displayname AS SELECT *, STRFTIME('%d/%m/%Y',d_date)||' '||IFNULL(t_PAYEE,'')||' '||v_operation.f_CURRENTAMOUNT||' '||(SELECT (CASE WHEN s.t_symbol!='' THEN s.t_symbol ELSE s.t_name END) FROM unit s WHERE s.id=v_operation.rc_unit_id) AS t_displayname FROM v_operation;
+CREATE VIEW v_operation_delete AS SELECT *, (CASE WHEN t_status='Y' THEN 'Vous n''êtes pas autorisé à détruire cette opération car en état « rapproché »' END) t_delete_message FROM operation;
+CREATE VIEW v_account AS SELECT *,(SELECT MAX(s.d_date) FROM  interest s WHERE s.rd_account_id=account.id) AS d_MAXDATE, (SELECT TOTAL(s.f_CURRENTAMOUNT) FROM v_operation s WHERE s.rd_account_id=account.id AND s.t_template='N') AS f_CURRENTAMOUNT FROM account;
+CREATE VIEW v_account_delete AS SELECT *, (CASE WHEN EXISTS(SELECT 1 FROM operation WHERE rd_account_id=account.id AND d_date<>'0000-00-00' AND t_template='N' AND t_status='Y') THEN 'Vous n''êtes pas autorisé à détruire ce compte car il contient des opérations rapprochées' END) t_delete_message FROM account;
+CREATE VIEW v_bank_displayname AS SELECT *, t_name AS t_displayname FROM bank;
+CREATE VIEW v_account_displayname AS SELECT *, (SELECT t_displayname FROM v_bank_displayname WHERE account.rd_bank_id=v_bank_displayname.id)||'-'||t_name AS t_displayname FROM account;
+CREATE VIEW v_bank AS SELECT *,(SELECT TOTAL(s.f_CURRENTAMOUNT) FROM v_account s WHERE s.rd_bank_id=bank.id) AS f_CURRENTAMOUNT FROM bank;
+CREATE VIEW v_category_displayname AS SELECT *, t_fullname AS t_displayname FROM category;
+CREATE VIEW v_category AS SELECT * FROM category;
+CREATE VIEW v_recurrentoperation AS SELECT *,i_period_increment||' '||(CASE t_period_unit WHEN 'Y' THEN 'année(s)' WHEN 'M' THEN 'mois' WHEN 'W' THEN 'semaine(s)' ELSE 'jour(s)' END) AS t_PERIODNLS FROM recurrentoperation;
+CREATE VIEW v_recurrentoperation_displayname AS SELECT *, STRFTIME('%d/%m/%Y',d_date)||' '||SUBSTR((SELECT t_displayname FROM v_operation_displayname WHERE v_operation_displayname.id=v_recurrentoperation.rd_operation_id), 11) AS t_displayname FROM v_recurrentoperation;
+CREATE VIEW v_unitvalue_display AS SELECT *,IFNULL((SELECT (CASE WHEN s.t_symbol!='' THEN s.t_symbol ELSE s.t_name END) FROM unit s WHERE s.id=(SELECT s2.rd_unit_id FROM unit s2 WHERE s2.id=unitvalue.rd_unit_id)),'') AS t_UNIT,STRFTIME('%Y-%m',unitvalue.d_date) AS d_DATEMONTH,STRFTIME('%Y',unitvalue.d_date) AS d_DATEYEAR FROM unitvalue;
+CREATE VIEW v_suboperation_display AS SELECT *,IFNULL((SELECT s.t_fullname FROM category s WHERE s.id=v_suboperation.r_category_id),'') AS t_CATEGORY, IFNULL((SELECT s.t_name FROM refund s WHERE s.id=v_suboperation.r_refund_id),'') AS t_REFUND, (CASE WHEN v_suboperation.f_value>=0 THEN v_suboperation.f_value ELSE 0 END) AS f_VALUE_INCOME, (CASE WHEN v_suboperation.f_value<=0 THEN v_suboperation.f_value ELSE 0 END) AS f_VALUE_EXPENSE FROM v_suboperation;
+CREATE VIEW v_suboperation_displayname AS SELECT *, t_CATEGORY||' : '||f_value AS t_displayname FROM v_suboperation_display;
+CREATE VIEW v_operation_display_all AS SELECT *,(SELECT s.t_name FROM account s WHERE s.id=v_operation.rd_account_id) AS t_ACCOUNT,(SELECT (CASE WHEN s.t_symbol!='' THEN s.t_symbol ELSE s.t_name END) FROM unit s WHERE s.id=v_operation.rc_unit_id) AS t_UNIT,(SELECT s.t_CATEGORY FROM v_suboperation_display s WHERE s.id=v_operation.i_MOSTIMPSUBOP) AS t_CATEGORY,(SELECT s.t_REFUND FROM v_suboperation_display s WHERE s.id=v_operation.i_MOSTIMPSUBOP) AS t_REFUND,(CASE WHEN v_operation.f_QUANTITY<0 THEN '-' WHEN v_operation.f_QUANTITY=0 THEN '' ELSE '+' END) AS t_TYPEEXPENSE, (CASE WHEN v_operation.f_QUANTITY<=0 THEN 'Dépense' ELSE 'Revenu' END) AS t_TYPEEXPENSENLS, STRFTIME('%Y-W%W',v_operation.d_date) AS d_DATEWEEK,STRFTIME('%Y-%m',v_operation.d_date) AS d_DATEMONTH,STRFTIME('%Y',v_operation.d_date)||'-Q'||(CASE WHEN STRFTIME('%m',v_operation.d_date)<='03' THEN '1' WHEN STRFTIME('%m',v_operation.d_date)<='06' THEN '2' WHEN STRFTIME('%m',v_operation.d_date)<='09' THEN '3' ELSE '4' END) AS d_DATEQUARTER, STRFTIME('%Y',v_operation.d_date)||'-S'||(CASE WHEN STRFTIME('%m',v_operation.d_date)<='06' THEN '1' ELSE '2' END) AS d_DATESEMESTER, STRFTIME('%Y',v_operation.d_date) AS d_DATEYEAR, (SELECT count(*) FROM v_recurrentoperation s WHERE s.rd_operation_id=v_operation.id) AS i_NBRECURRENT,  (CASE WHEN v_operation.f_QUANTITY>=0 THEN v_operation.f_QUANTITY ELSE 0 END) AS f_QUANTITY_INCOME, (CASE WHEN v_operation.f_QUANTITY<=0 THEN v_operation.f_QUANTITY ELSE 0 END) AS f_QUANTITY_EXPENSE, (SELECT o2.f_balance FROM operationbalance o2 WHERE o2.r_operation_id=v_operation.id ) AS f_BALANCE, (CASE WHEN v_operation.f_QUANTITY>=0 THEN v_operation.f_CURRENTAMOUNT ELSE 0 END) AS f_CURRENTAMOUNT_INCOME, (CASE WHEN v_operation.f_QUANTITY<=0 THEN v_operation.f_CURRENTAMOUNT ELSE 0 END) AS f_CURRENTAMOUNT_EXPENSE FROM v_operation;
+CREATE VIEW v_operation_template_display AS SELECT * FROM v_operation_display_all WHERE t_template='Y';
+CREATE VIEW v_operation_display AS SELECT * FROM v_operation_display_all WHERE d_date!='0000-00-00' AND t_template='N';
+CREATE VIEW v_unit_display AS SELECT *,(SELECT TOTAL(o.f_QUANTITY) FROM v_operation_display o WHERE o.rc_unit_id=v_unit.id) AS f_QUANTITYOWNED FROM v_unit;
+CREATE VIEW v_account_display AS SELECT (CASE t_type WHEN 'C' THEN 'Courant' WHEN 'D' THEN 'Carte de crédit' WHEN 'A' THEN 'Actif' WHEN 'I' THEN 'Investissement' WHEN 'W' THEN 'Portefeuille' WHEN 'L' THEN 'Prêt' WHEN 'O' THEN 'Autre' END) AS t_TYPENLS,bank.t_name  AS t_BANK,bank.t_bank_number AS t_BANK_NUMBER,bank.t_icon AS t_ICON,v_account.*,(v_account.f_CURRENTAMOUNT/(SELECT u.f_CURRENTAMOUNT FROM v_unit u, operation s WHERE u.id=s.rc_unit_id AND s.rd_account_id=v_account.id AND s.d_date='0000-00-00')) AS f_QUANTITY, (SELECT (CASE WHEN u.t_symbol!='' THEN u.t_symbol ELSE u.t_name END) FROM unit u, operation s WHERE u.id=s.rc_unit_id AND s.rd_account_id=v_account.id AND s.d_date='0000-00-00') AS t_UNIT, (SELECT TOTAL(s.f_CURRENTAMOUNT) FROM v_operation s WHERE s.rd_account_id=v_account.id AND s.t_status!='N' AND s.t_template='N') AS f_CHECKED, (SELECT TOTAL(s.f_CURRENTAMOUNT) FROM v_operation s WHERE s.rd_account_id=v_account.id AND s.t_status='N' AND s.t_template='N') AS f_COMING_SOON, (SELECT TOTAL(s.f_CURRENTAMOUNT) FROM v_operation s WHERE s.rd_account_id=v_account.id AND s.d_date<=date('now') AND s.t_template='N') AS f_TODAYAMOUNT, (SELECT count(*) FROM v_operation_display s WHERE s.rd_account_id=v_account.id) AS i_NBOPERATIONS, IFNULL((SELECT s.f_rate FROM interest s WHERE s.rd_account_id=v_account.id AND s.d_date=v_account.d_MAXDATE),0) AS f_RATE FROM v_account, bank WHERE bank.id=v_account.rd_bank_id;
+CREATE VIEW v_operation_consolidated AS SELECT (SELECT s.t_TYPENLS FROM v_account_display s WHERE s.id=op.rd_account_id) AS t_ACCOUNTTYPE,(SELECT u.t_TYPENLS FROM v_unit u WHERE u.id=op.rc_unit_id) AS t_UNITTYPE,sop.id AS i_SUBOPID, sop.r_refund_id AS r_refund_id, (CASE WHEN sop.t_comment='' THEN op.t_comment ELSE sop.t_comment END) AS t_REALCOMMENT, sop.t_CATEGORY AS t_REALCATEGORY, sop.t_REFUND AS t_REALREFUND, sop.r_category_id AS i_IDCATEGORY, (CASE WHEN sop.f_value<0 THEN '-' WHEN sop.f_value=0 THEN '' ELSE '+' END) AS t_TYPEEXPENSE, (CASE WHEN sop.f_value<0 THEN 'Dépense' WHEN sop.f_value=0 THEN '' ELSE 'Revenu' END) AS t_TYPEEXPENSENLS, sop.f_value AS f_REALQUANTITY, sop.f_VALUE_INCOME AS f_REALQUANTITY_INCOME, sop.f_VALUE_EXPENSE AS f_REALQUANTITY_EXPENSE, ((SELECT u.f_CURRENTAMOUNT FROM v_unit u WHERE u.id=op.rc_unit_id)*sop.f_value) AS f_REALCURRENTAMOUNT, ((SELECT u.f_CURRENTAMOUNT FROM v_unit u WHERE u.id=op.rc_unit_id)*sop.f_VALUE_INCOME) AS f_REALCURRENTAMOUNT_INCOME, ((SELECT u.f_CURRENTAMOUNT FROM v_unit u WHERE u.id=op.rc_unit_id)*sop.f_VALUE_EXPENSE) AS f_REALCURRENTAMOUNT_EXPENSE, op.* FROM v_operation_display_all AS op, v_suboperation_display AS sop WHERE op.t_template='N' AND sop.rd_operation_id=op.ID;
+CREATE VIEW v_operation_prop AS SELECT p.id AS i_PROPPID, p.t_name AS i_PROPPNAME, p.t_value AS i_PROPVALUE, op.* FROM v_operation_consolidated AS op LEFT OUTER JOIN parameters AS p ON p.t_uuid_parent=op.id||'-operation';
+CREATE VIEW v_refund_delete AS SELECT *, (CASE WHEN EXISTS(SELECT 1 FROM v_operation_consolidated WHERE r_refund_id=refund.id AND t_status='Y') THEN 'Vous n''êtes pas autorisé à détruire ce suiveur car utilisé par des opérations rapprochées' END) t_delete_message FROM refund;
+CREATE VIEW v_refund AS SELECT *, (SELECT TOTAL(o.f_REALCURRENTAMOUNT) FROM v_operation_consolidated o WHERE o.r_refund_id=refund.id) AS f_CURRENTAMOUNT FROM refund;
+CREATE VIEW v_refund_display AS SELECT *,(SELECT MIN(o.d_date) FROM v_operation_consolidated o WHERE o.r_refund_id=v_refund.id) AS d_FIRSTDATE, (SELECT MAX(o.d_date) FROM v_operation_consolidated o WHERE o.r_refund_id=v_refund.id) AS d_LASTDATE  FROM v_refund;
+CREATE VIEW v_refund_displayname AS SELECT *, t_name AS t_displayname FROM refund;
+CREATE VIEW v_payee_delete AS SELECT *, (CASE WHEN EXISTS(SELECT 1 FROM operation WHERE r_payee_id=payee.id AND t_status='Y') THEN 'Vous n''êtes pas autorisé à détruire ce tiers car utilisé par des opérations rapprochées' END) t_delete_message FROM payee;
+CREATE VIEW v_payee AS SELECT *, (SELECT TOTAL(o.f_CURRENTAMOUNT) FROM v_operation o WHERE o.r_payee_id=payee.id AND o.t_template='N') AS f_CURRENTAMOUNT FROM payee;
+CREATE VIEW v_payee_display AS SELECT *  FROM v_payee;
+CREATE VIEW v_payee_displayname AS SELECT *, t_name AS t_displayname FROM payee;
+CREATE VIEW v_category_delete AS SELECT *, (CASE WHEN EXISTS(SELECT 1 FROM v_operation_consolidated WHERE (t_REALCATEGORY=category.t_fullname OR t_REALCATEGORY like category.t_fullname||'%') AND t_status='Y') THEN 'Vous n''êtes pas autorisé à détruire cette catégorie car utilisée par des opérations rapprochées' END) t_delete_message FROM category;
+CREATE VIEW v_category_display_tmp AS SELECT *,(SELECT count(distinct(so.rd_operation_id)) FROM operation o, suboperation so WHERE so.rd_operation_id=o.id AND so.r_category_id=v_category.ID AND o.t_template='N') AS i_NBOPERATIONS, (SELECT TOTAL(o.f_REALCURRENTAMOUNT) FROM v_operation_consolidated o WHERE o.i_IDCATEGORY=v_category.ID) AS f_REALCURRENTAMOUNT FROM v_category;
+CREATE VIEW v_category_display AS SELECT *,f_REALCURRENTAMOUNT+(SELECT TOTAL(c.f_REALCURRENTAMOUNT) FROM vm_category_display_tmp c WHERE c.t_fullname LIKE vm_category_display_tmp.t_fullname||' > %') AS f_SUMCURRENTAMOUNT, i_NBOPERATIONS+(SELECT CAST(TOTAL(c.i_NBOPERATIONS) AS INTEGER) FROM vm_category_display_tmp c WHERE c.t_fullname like vm_category_display_tmp.t_fullname||' > %') AS i_SUMNBOPERATIONS, (CASE WHEN t_bookmarked='Y' THEN 'Y' WHEN EXISTS(SELECT 1 FROM category c WHERE c.t_bookmarked='Y' AND c.t_fullname like vm_category_display_tmp.t_fullname||' > %') THEN 'C' ELSE 'N' END) AS t_HASBOOKMARKEDCHILD, (CASE WHEN vm_category_display_tmp.f_REALCURRENTAMOUNT<0 THEN '-' WHEN vm_category_display_tmp.f_REALCURRENTAMOUNT=0 THEN '' ELSE '+' END) AS t_TYPEEXPENSE,(CASE WHEN vm_category_display_tmp.f_REALCURRENTAMOUNT<0 THEN 'Dépense' WHEN vm_category_display_tmp.f_REALCURRENTAMOUNT=0 THEN '' ELSE 'Revenu' END) AS t_TYPEEXPENSENLS FROM vm_category_display_tmp;
+CREATE VIEW v_recurrentoperation_display AS SELECT rop.*, op.t_ACCOUNT, op.i_number, op.t_mode, op.i_group_id, op.t_TRANSFER, op.t_PAYEE, op.t_comment, op.t_CATEGORY, op.t_status, op.f_CURRENTAMOUNT FROM v_recurrentoperation rop, v_operation_display_all AS op WHERE rop.rd_operation_id=op.ID;
+CREATE VIEW v_rule AS SELECT *,(SELECT COUNT(1) FROM rule r WHERE r.f_sortorder<=rule.f_sortorder) AS i_ORDER FROM rule;
+CREATE VIEW v_rule_displayname AS SELECT *, t_definition AS t_displayname FROM rule;
+CREATE VIEW v_interest AS SELECT *,(SELECT s.t_name FROM account s WHERE s.id=interest.rd_account_id) AS t_ACCOUNT  FROM interest;
+CREATE VIEW v_interest_displayname AS SELECT *, STRFTIME('%d/%m/%Y',d_date)||' '||f_rate||'%' AS t_displayname FROM interest;
+CREATE VIEW v_budgetrule AS SELECT *, IFNULL((SELECT s.t_fullname FROM category s WHERE s.id=budgetrule.rc_category_id),'') AS t_CATEGORYCONDITION, IFNULL((SELECT s.t_fullname FROM category s WHERE s.id=budgetrule.rc_category_id_target),'') AS t_CATEGORY, (CASE WHEN budgetrule.i_condition=-1 THEN 'Négatif' WHEN budgetrule.i_condition=1 THEN 'Positif' WHEN budgetrule.i_condition=0 THEN 'Tous' END) AS t_WHENNLS, f_quantity||(CASE WHEN budgetrule.t_absolute='N' THEN '%' ELSE (SELECT t_symbol FROM unit WHERE t_type='1') END) AS t_WHATNLS,(CASE WHEN budgetrule.t_rule='N' THEN 'Suivant' WHEN budgetrule.t_rule='C' THEN 'Courant' WHEN budgetrule.t_rule='Y' THEN 'Année' END) AS t_RULENLS FROM budgetrule;
+CREATE VIEW v_budgetrule_display AS SELECT *  FROM v_budgetrule;
+CREATE VIEW v_budgetrule_displayname AS SELECT *, t_WHENNLS||' '||t_WHATNLS||' '||t_RULENLS||' '||t_CATEGORY AS t_displayname FROM v_budgetrule;
+CREATE VIEW v_budget_tmp AS SELECT *, IFNULL((SELECT s.t_fullname FROM category s WHERE s.id=budget.rc_category_id),'') AS t_CATEGORY, (i_year||(CASE WHEN i_month=0 THEN '' WHEN i_month<10 THEN '-0'||i_month ELSE '-'||i_month END)) AS t_PERIOD, (SELECT TOTAL(o.f_REALCURRENTAMOUNT) FROM v_operation_consolidated o WHERE STRFTIME('%Y', o.d_date)=i_year AND (i_month=0 OR STRFTIME('%m', o.d_date)=i_month) AND o.i_IDCATEGORY IN (SELECT b2.id_category FROM budgetcategory b2 WHERE b2.id=budget.id)) AS f_CURRENTAMOUNT, (SELECT GROUP_CONCAT(v_budgetrule_displayname.t_displayname,',') FROM v_budgetrule_displayname WHERE (v_budgetrule_displayname.t_year_condition='N' OR budget.i_year=v_budgetrule_displayname.i_year) AND (v_budgetrule_displayname.t_month_condition='N' OR budget.i_month=v_budgetrule_displayname.i_month) AND (v_budgetrule_displayname.t_category_condition='N' OR budget.rc_category_id=v_budgetrule_displayname.rc_category_id) ORDER BY v_budgetrule_displayname.t_absolute DESC, v_budgetrule_displayname.id) AS t_RULES FROM budget;
+CREATE VIEW v_budget AS SELECT *, (f_CURRENTAMOUNT-f_budgeted_modified) AS f_DELTABEFORETRANSFER, (f_CURRENTAMOUNT-f_budgeted_modified-f_transferred) AS f_DELTA FROM v_budget_tmp;
+CREATE VIEW v_budget_display AS SELECT *, (f_CURRENTAMOUNT-f_budgeted_modified) AS f_DELTABEFORETRANSFER, (f_CURRENTAMOUNT-f_budgeted_modified-f_transferred) AS f_DELTA FROM vm_budget_tmp;
+CREATE VIEW v_budget_displayname AS SELECT *, t_CATEGORY||' '||t_PERIOD||' '||f_budgeted_modified AS t_displayname FROM v_budget;
+CREATE TRIGGER fkdc_bank_parameters_uuid BEFORE DELETE ON bank FOR EACH ROW BEGIN     DELETE FROM parameters WHERE parameters.t_uuid_parent=OLD.id||'-'||'bank'; END;
+CREATE TRIGGER fkdc_account_parameters_uuid BEFORE DELETE ON account FOR EACH ROW BEGIN     DELETE FROM parameters WHERE parameters.t_uuid_parent=OLD.id||'-'||'account'; END;
+CREATE TRIGGER fkdc_unit_parameters_uuid BEFORE DELETE ON unit FOR EACH ROW BEGIN     DELETE FROM parameters WHERE parameters.t_uuid_parent=OLD.id||'-'||'unit'; END;
+CREATE TRIGGER fkdc_unitvalue_parameters_uuid BEFORE DELETE ON unitvalue FOR EACH ROW BEGIN     DELETE FROM parameters WHERE parameters.t_uuid_parent=OLD.id||'-'||'unitvalue'; END;
+CREATE TRIGGER fkdc_category_parameters_uuid BEFORE DELETE ON category FOR EACH ROW BEGIN     DELETE FROM parameters WHERE parameters.t_uuid_parent=OLD.id||'-'||'category'; END;
+CREATE TRIGGER fkdc_operation_parameters_uuid BEFORE DELETE ON operation FOR EACH ROW BEGIN     DELETE FROM parameters WHERE parameters.t_uuid_parent=OLD.id||'-'||'operation'; END;
+CREATE TRIGGER fkdc_interest_parameters_uuid BEFORE DELETE ON interest FOR EACH ROW BEGIN     DELETE FROM parameters WHERE parameters.t_uuid_parent=OLD.id||'-'||'interest'; END;
+CREATE TRIGGER fkdc_suboperation_parameters_uuid BEFORE DELETE ON suboperation FOR EACH ROW BEGIN     DELETE FROM parameters WHERE parameters.t_uuid_parent=OLD.id||'-'||'suboperation'; END;
+CREATE TRIGGER fkdc_refund_parameters_uuid BEFORE DELETE ON refund FOR EACH ROW BEGIN     DELETE FROM parameters WHERE parameters.t_uuid_parent=OLD.id||'-'||'refund'; END;
+CREATE TRIGGER fkdc_payee_parameters_uuid BEFORE DELETE ON payee FOR EACH ROW BEGIN     DELETE FROM parameters WHERE parameters.t_uuid_parent=OLD.id||'-'||'payee'; END;
+CREATE TRIGGER fkdc_recurrentoperation_parameters_uuid BEFORE DELETE ON recurrentoperation FOR EACH ROW BEGIN     DELETE FROM parameters WHERE parameters.t_uuid_parent=OLD.id||'-'||'recurrentoperation'; END;
+CREATE TRIGGER fkdc_rule_parameters_uuid BEFORE DELETE ON rule FOR EACH ROW BEGIN     DELETE FROM parameters WHERE parameters.t_uuid_parent=OLD.id||'-'||'rule'; END;
+CREATE TRIGGER fkdc_budget_parameters_uuid BEFORE DELETE ON budget FOR EACH ROW BEGIN     DELETE FROM parameters WHERE parameters.t_uuid_parent=OLD.id||'-'||'budget'; END;
+CREATE TRIGGER fkdc_budgetrule_parameters_uuid BEFORE DELETE ON budgetrule FOR EACH ROW BEGIN     DELETE FROM parameters WHERE parameters.t_uuid_parent=OLD.id||'-'||'budgetrule'; END;
+CREATE TRIGGER cpt_category_fullname1 AFTER INSERT ON category BEGIN UPDATE category SET t_fullname=CASE WHEN rd_category_id IS NULL OR rd_category_id='' OR rd_category_id=0 THEN new.t_name ELSE (SELECT c.t_fullname FROM category c WHERE c.id=new.rd_category_id)||' > '||new.t_name END WHERE id=new.id;END;
+CREATE TRIGGER cpt_category_fullname2 AFTER UPDATE OF t_name, rd_category_id ON category BEGIN UPDATE category SET t_fullname=CASE WHEN rd_category_id IS NULL OR rd_category_id='' OR rd_category_id=0 THEN new.t_name ELSE (SELECT c.t_fullname FROM category c WHERE c.id=new.rd_category_id)||' > '||new.t_name END WHERE id=new.id;UPDATE category SET t_name=t_name WHERE rd_category_id=new.id;END;
+CREATE TRIGGER fkdc_category_delete BEFORE DELETE ON category FOR EACH ROW BEGIN     UPDATE suboperation SET r_category_id=OLD.rd_category_id WHERE r_category_id=OLD.id; END;
+explain
+       SELECT TOTAL(f_CURRENTAMOUNT), d_DATEMONTH
+       from v_operation_display
+       WHERE d_DATEMONTH IN ('2012-05', '2012-04')
+       group by d_DATEMONTH, t_TYPEEXPENSE;
+  }
+} {/.* Goto .*/}
+
+# The next test requires FTS4
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+# Taken from the gnome-shell project
+#
+db close
+forcedelete test.db
+sqlite3 db test.db
+sqlite3_db_config db SQLITE_DBCONFIG_DQS_DDL 1
+sqlite3_db_config db SQLITE_DBCONFIG_DQS_DML 1
+do_test fuzz-oss1-gnomeshell {
+  db eval {
+CREATE TABLE Resource (ID INTEGER NOT NULL PRIMARY KEY, Uri TEXT NOT
+NULL, UNIQUE (Uri));
+CREATE VIRTUAL TABLE fts USING fts4;
+CREATE TABLE "mfo:Action" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "mfo:Enclosure" (ID INTEGER NOT NULL PRIMARY KEY,
+"mfo:remoteLink" INTEGER, "mfo:remoteLink:graph" INTEGER,
+"mfo:groupDefault" INTEGER, "mfo:groupDefault:graph" INTEGER,
+"mfo:localLink" INTEGER, "mfo:localLink:graph" INTEGER, "mfo:optional"
+INTEGER, "mfo:optional:graph" INTEGER);
+CREATE TABLE "mfo:FeedChannel" (ID INTEGER NOT NULL PRIMARY KEY,
+"mfo:updatedTime" INTEGER, "mfo:updatedTime:graph" INTEGER,
+"mfo:updatedTime:localDate" INTEGER, "mfo:updatedTime:localTime"
+INTEGER, "mfo:unreadCount" INTEGER, "mfo:unreadCount:graph" INTEGER,
+"mfo:totalCount" INTEGER, "mfo:totalCount:graph" INTEGER, "mfo:action"
+INTEGER, "mfo:action:graph" INTEGER, "mfo:type" INTEGER,
+"mfo:type:graph" INTEGER);
+CREATE TABLE "mfo:FeedElement" (ID INTEGER NOT NULL PRIMARY KEY,
+"mfo:image" TEXT COLLATE NOCASE, "mfo:image:graph" INTEGER,
+"mfo:feedSettings" INTEGER, "mfo:feedSettings:graph" INTEGER);
+CREATE TABLE "mfo:FeedMessage" (ID INTEGER NOT NULL PRIMARY KEY,
+"mfo:downloadedTime" INTEGER, "mfo:downloadedTime:graph" INTEGER,
+"mfo:downloadedTime:localDate" INTEGER, "mfo:downloadedTime:localTime"
+INTEGER);
+CREATE TABLE "mfo:FeedMessage_mfo:enclosureList" (ID INTEGER NOT NULL,
+"mfo:enclosureList" INTEGER NOT NULL, "mfo:enclosureList:graph"
+INTEGER);
+CREATE TABLE "mfo:FeedSettings" (ID INTEGER NOT NULL PRIMARY KEY,
+"mfo:updateInterval" INTEGER, "mfo:updateInterval:graph" INTEGER,
+"mfo:expiryInterval" INTEGER, "mfo:expiryInterval:graph" INTEGER,
+"mfo:downloadPath" TEXT COLLATE NOCASE, "mfo:downloadPath:graph"
+INTEGER, "mfo:downloadFlag" INTEGER, "mfo:downloadFlag:graph" INTEGER,
+"mfo:maxSize" INTEGER, "mfo:maxSize:graph" INTEGER);
+CREATE TABLE "mfo:FeedType" (ID INTEGER NOT NULL PRIMARY KEY,
+"mfo:name" TEXT COLLATE NOCASE, "mfo:name:graph" INTEGER);
+CREATE TABLE "mlo:GeoBoundingBox" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "mlo:GeoBoundingBox_mlo:bbNorthWest" (ID INTEGER NOT
+NULL, "mlo:bbNorthWest" INTEGER NOT NULL, "mlo:bbNorthWest:graph"
+INTEGER);
+CREATE TABLE "mlo:GeoBoundingBox_mlo:bbSouthEast" (ID INTEGER NOT
+NULL, "mlo:bbSouthEast" INTEGER NOT NULL, "mlo:bbSouthEast:graph"
+INTEGER);
+CREATE TABLE "mlo:GeoLocation" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "mlo:GeoLocation_mlo:asBoundingBox" (ID INTEGER NOT NULL,
+"mlo:asBoundingBox" INTEGER NOT NULL, "mlo:asBoundingBox:graph"
+INTEGER);
+CREATE TABLE "mlo:GeoLocation_mlo:asGeoPoint" (ID INTEGER NOT NULL,
+"mlo:asGeoPoint" INTEGER NOT NULL, "mlo:asGeoPoint:graph" INTEGER);
+CREATE TABLE "mlo:GeoLocation_mlo:asPostalAddress" (ID INTEGER NOT
+NULL, "mlo:asPostalAddress" INTEGER NOT NULL,
+"mlo:asPostalAddress:graph" INTEGER);
+CREATE TABLE "mlo:GeoPoint" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "mlo:GeoPoint_mlo:address" (ID INTEGER NOT NULL,
+"mlo:address" TEXT NOT NULL, "mlo:address:graph" INTEGER);
+CREATE TABLE "mlo:GeoPoint_mlo:altitude" (ID INTEGER NOT NULL,
+"mlo:altitude" REAL NOT NULL, "mlo:altitude:graph" INTEGER);
+CREATE TABLE "mlo:GeoPoint_mlo:city" (ID INTEGER NOT NULL, "mlo:city"
+TEXT NOT NULL, "mlo:city:graph" INTEGER);
+CREATE TABLE "mlo:GeoPoint_mlo:country" (ID INTEGER NOT NULL,
+"mlo:country" TEXT NOT NULL, "mlo:country:graph" INTEGER);
+CREATE TABLE "mlo:GeoPoint_mlo:latitude" (ID INTEGER NOT NULL,
+"mlo:latitude" REAL NOT NULL, "mlo:latitude:graph" INTEGER);
+CREATE TABLE "mlo:GeoPoint_mlo:longitude" (ID INTEGER NOT NULL,
+"mlo:longitude" REAL NOT NULL, "mlo:longitude:graph" INTEGER);
+CREATE TABLE "mlo:GeoPoint_mlo:state" (ID INTEGER NOT NULL,
+"mlo:state" TEXT NOT NULL, "mlo:state:graph" INTEGER);
+CREATE TABLE "mlo:GeoPoint_mlo:timestamp" (ID INTEGER NOT NULL,
+"mlo:timestamp" INTEGER NOT NULL, "mlo:timestamp:graph" INTEGER,
+"mlo:timestamp:localDate" INTEGER NOT NULL, "mlo:timestamp:localTime"
+INTEGER NOT NULL);
+CREATE TABLE "mlo:GeoSphere" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "mlo:GeoSphere_mlo:radius" (ID INTEGER NOT NULL,
+"mlo:radius" REAL NOT NULL, "mlo:radius:graph" INTEGER);
+CREATE TABLE "mlo:Landmark" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "mlo:LandmarkCategory" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "mlo:LandmarkCategory_mlo:isRemovable" (ID INTEGER NOT
+NULL, "mlo:isRemovable" INTEGER NOT NULL, "mlo:isRemovable:graph"
+INTEGER);
+CREATE TABLE "mlo:Landmark_mlo:belongsToCategory" (ID INTEGER NOT
+NULL, "mlo:belongsToCategory" INTEGER NOT NULL,
+"mlo:belongsToCategory:graph" INTEGER);
+CREATE TABLE "mlo:Landmark_mlo:poiLocation" (ID INTEGER NOT NULL,
+"mlo:poiLocation" INTEGER NOT NULL, "mlo:poiLocation:graph" INTEGER);
+CREATE TABLE "mlo:LocationBoundingBox" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "mlo:LocationBoundingBox_mlo:boxEastLimit" (ID INTEGER
+NOT NULL, "mlo:boxEastLimit" INTEGER NOT NULL,
+"mlo:boxEastLimit:graph" INTEGER);
+CREATE TABLE "mlo:LocationBoundingBox_mlo:boxNorthLimit" (ID INTEGER
+NOT NULL, "mlo:boxNorthLimit" INTEGER NOT NULL,
+"mlo:boxNorthLimit:graph" INTEGER);
+CREATE TABLE "mlo:LocationBoundingBox_mlo:boxSouthWestCorner" (ID
+INTEGER NOT NULL, "mlo:boxSouthWestCorner" INTEGER NOT NULL,
+"mlo:boxSouthWestCorner:graph" INTEGER);
+CREATE TABLE "mlo:LocationBoundingBox_mlo:boxVerticalLimit" (ID
+INTEGER NOT NULL, "mlo:boxVerticalLimit" INTEGER NOT NULL,
+"mlo:boxVerticalLimit:graph" INTEGER);
+CREATE TABLE "mlo:PointOfInterest" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "mlo:Route" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "mlo:Route_mlo:endTime" (ID INTEGER NOT NULL,
+"mlo:endTime" INTEGER NOT NULL, "mlo:endTime:graph" INTEGER,
+"mlo:endTime:localDate" INTEGER NOT NULL, "mlo:endTime:localTime"
+INTEGER NOT NULL);
+CREATE TABLE "mlo:Route_mlo:routeDetails" (ID INTEGER NOT NULL,
+"mlo:routeDetails" TEXT NOT NULL, "mlo:routeDetails:graph" INTEGER);
+CREATE TABLE "mlo:Route_mlo:startTime" (ID INTEGER NOT NULL,
+"mlo:startTime" INTEGER NOT NULL, "mlo:startTime:graph" INTEGER,
+"mlo:startTime:localDate" INTEGER NOT NULL, "mlo:startTime:localTime"
+INTEGER NOT NULL);
+CREATE TABLE "mto:DownloadTransfer" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "mto:State" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "mto:SyncTransfer" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "mto:Transfer" (ID INTEGER NOT NULL PRIMARY KEY,
+"mto:transferState" INTEGER, "mto:transferState:graph" INTEGER,
+"mto:method" INTEGER, "mto:method:graph" INTEGER, "mto:created"
+INTEGER, "mto:created:graph" INTEGER, "mto:created:localDate" INTEGER,
+"mto:created:localTime" INTEGER, "mto:account" TEXT COLLATE NOCASE,
+"mto:account:graph" INTEGER, "mto:starter" INTEGER,
+"mto:starter:graph" INTEGER, "mto:agent" INTEGER, "mto:agent:graph"
+INTEGER);
+CREATE TABLE "mto:TransferElement" (ID INTEGER NOT NULL PRIMARY KEY,
+"mto:source" INTEGER, "mto:source:graph" INTEGER, "mto:destination"
+INTEGER, "mto:destination:graph" INTEGER, "mto:startedTime" INTEGER,
+"mto:startedTime:graph" INTEGER, "mto:startedTime:localDate" INTEGER,
+"mto:startedTime:localTime" INTEGER, "mto:completedTime" INTEGER,
+"mto:completedTime:graph" INTEGER, "mto:completedTime:localDate"
+INTEGER, "mto:completedTime:localTime" INTEGER, "mto:state" INTEGER,
+"mto:state:graph" INTEGER);
+CREATE TABLE "mto:TransferMethod" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "mto:Transfer_mto:transferList" (ID INTEGER NOT NULL,
+"mto:transferList" INTEGER NOT NULL, "mto:transferList:graph"
+INTEGER);
+CREATE TABLE "mto:Transfer_mto:transferPrivacyLevel" (ID INTEGER NOT
+NULL, "mto:transferPrivacyLevel" TEXT NOT NULL,
+"mto:transferPrivacyLevel:graph" INTEGER);
+CREATE TABLE "mto:UploadTransfer" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "mto:UploadTransfer_mto:transferCategory" (ID INTEGER NOT
+NULL, "mto:transferCategory" TEXT NOT NULL,
+"mto:transferCategory:graph" INTEGER);
+CREATE TABLE "mtp:ScanType" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nao:Property" (ID INTEGER NOT NULL PRIMARY KEY,
+"nao:propertyName" TEXT COLLATE NOCASE, "nao:propertyName:graph"
+INTEGER, "nao:propertyValue" TEXT COLLATE NOCASE,
+"nao:propertyValue:graph" INTEGER);
+CREATE TABLE "nao:Tag" (ID INTEGER NOT NULL PRIMARY KEY,
+"nao:prefLabel" TEXT COLLATE NOCASE, "nao:prefLabel:graph" INTEGER,
+"nao:description" TEXT COLLATE NOCASE, "nao:description:graph"
+INTEGER);
+CREATE TABLE "nao:Tag_tracker:isDefaultTag" (ID INTEGER NOT NULL,
+"tracker:isDefaultTag" INTEGER NOT NULL, "tracker:isDefaultTag:graph"
+INTEGER);
+CREATE TABLE "nao:Tag_tracker:tagRelatedTo" (ID INTEGER NOT NULL,
+"tracker:tagRelatedTo" INTEGER NOT NULL, "tracker:tagRelatedTo:graph"
+INTEGER);
+CREATE TABLE "ncal:AccessClassification" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "ncal:Alarm" (ID INTEGER NOT NULL PRIMARY KEY,
+"ncal:repeat" INTEGER, "ncal:repeat:graph" INTEGER);
+CREATE TABLE "ncal:AlarmAction" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "ncal:Alarm_ncal:action" (ID INTEGER NOT NULL,
+"ncal:action" INTEGER NOT NULL, "ncal:action:graph" INTEGER);
+CREATE TABLE "ncal:Attachment" (ID INTEGER NOT NULL PRIMARY KEY,
+"ncal:attachmentUri" INTEGER, "ncal:attachmentUri:graph" INTEGER,
+"ncal:fmttype" TEXT COLLATE NOCASE, "ncal:fmttype:graph" INTEGER,
+"ncal:encoding" INTEGER, "ncal:encoding:graph" INTEGER,
+"ncal:attachmentContent" TEXT COLLATE NOCASE,
+"ncal:attachmentContent:graph" INTEGER);
+CREATE TABLE "ncal:AttachmentEncoding" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "ncal:Attendee" (ID INTEGER NOT NULL PRIMARY KEY,
+"ncal:delegatedTo" INTEGER, "ncal:delegatedTo:graph" INTEGER,
+"ncal:delegatedFrom" INTEGER, "ncal:delegatedFrom:graph" INTEGER,
+"ncal:cutype" INTEGER, "ncal:cutype:graph" INTEGER, "ncal:member"
+INTEGER, "ncal:member:graph" INTEGER, "ncal:role" INTEGER,
+"ncal:role:graph" INTEGER, "ncal:rsvp" INTEGER, "ncal:rsvp:graph"
+INTEGER, "ncal:partstat" INTEGER, "ncal:partstat:graph" INTEGER);
+CREATE TABLE "ncal:AttendeeOrOrganizer" (ID INTEGER NOT NULL PRIMARY
+KEY, "ncal:dir" INTEGER, "ncal:dir:graph" INTEGER,
+"ncal:involvedContact" INTEGER, "ncal:involvedContact:graph" INTEGER,
+"ncal:sentBy" INTEGER, "ncal:sentBy:graph" INTEGER);
+CREATE TABLE "ncal:AttendeeRole" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "ncal:BydayRulePart" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "ncal:BydayRulePart_ncal:bydayModifier" (ID INTEGER NOT
+NULL, "ncal:bydayModifier" INTEGER NOT NULL,
+"ncal:bydayModifier:graph" INTEGER);
+CREATE TABLE "ncal:BydayRulePart_ncal:bydayWeekday" (ID INTEGER NOT
+NULL, "ncal:bydayWeekday" INTEGER NOT NULL, "ncal:bydayWeekday:graph"
+INTEGER);
+CREATE TABLE "ncal:Calendar" (ID INTEGER NOT NULL PRIMARY KEY,
+"ncal:method" TEXT COLLATE NOCASE, "ncal:method:graph" INTEGER,
+"ncal:calscale" INTEGER, "ncal:calscale:graph" INTEGER, "ncal:prodid"
+TEXT COLLATE NOCASE, "ncal:prodid:graph" INTEGER, "ncal:version" TEXT
+COLLATE NOCASE, "ncal:version:graph" INTEGER);
+CREATE TABLE "ncal:CalendarDataObject" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "ncal:CalendarScale" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "ncal:CalendarUserType" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "ncal:Calendar_ncal:component" (ID INTEGER NOT NULL,
+"ncal:component" INTEGER NOT NULL, "ncal:component:graph" INTEGER);
+CREATE TABLE "ncal:Event" (ID INTEGER NOT NULL PRIMARY KEY,
+"ncal:eventStatus" INTEGER, "ncal:eventStatus:graph" INTEGER,
+"ncal:transp" INTEGER, "ncal:transp:graph" INTEGER);
+CREATE TABLE "ncal:EventStatus" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "ncal:Freebusy" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "ncal:FreebusyPeriod" (ID INTEGER NOT NULL PRIMARY KEY,
+"ncal:fbtype" INTEGER, "ncal:fbtype:graph" INTEGER);
+CREATE TABLE "ncal:FreebusyType" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "ncal:Freebusy_ncal:freebusy" (ID INTEGER NOT NULL,
+"ncal:freebusy" INTEGER NOT NULL, "ncal:freebusy:graph" INTEGER);
+CREATE TABLE "ncal:Journal" (ID INTEGER NOT NULL PRIMARY KEY,
+"ncal:journalStatus" INTEGER, "ncal:journalStatus:graph" INTEGER);
+CREATE TABLE "ncal:JournalStatus" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "ncal:NcalDateTime" (ID INTEGER NOT NULL PRIMARY KEY,
+"ncal:ncalTimezone" INTEGER, "ncal:ncalTimezone:graph" INTEGER,
+"ncal:date" INTEGER, "ncal:date:graph" INTEGER, "ncal:date:localDate"
+INTEGER, "ncal:date:localTime" INTEGER, "ncal:dateTime" INTEGER,
+"ncal:dateTime:graph" INTEGER, "ncal:dateTime:localDate" INTEGER,
+"ncal:dateTime:localTime" INTEGER);
+CREATE TABLE "ncal:NcalPeriod" (ID INTEGER NOT NULL PRIMARY KEY,
+"ncal:periodBegin" INTEGER, "ncal:periodBegin:graph" INTEGER,
+"ncal:periodBegin:localDate" INTEGER, "ncal:periodBegin:localTime"
+INTEGER, "ncal:periodDuration" INTEGER, "ncal:periodDuration:graph"
+INTEGER, "ncal:periodEnd" INTEGER, "ncal:periodEnd:graph" INTEGER,
+"ncal:periodEnd:localDate" INTEGER, "ncal:periodEnd:localTime"
+INTEGER);
+CREATE TABLE "ncal:NcalTimeEntity" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "ncal:Organizer" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "ncal:ParticipationStatus" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "ncal:RecurrenceFrequency" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "ncal:RecurrenceIdentifier" (ID INTEGER NOT NULL PRIMARY
+KEY, "ncal:range" INTEGER, "ncal:range:graph" INTEGER,
+"ncal:recurrenceIdDateTime" INTEGER, "ncal:recurrenceIdDateTime:graph"
+INTEGER);
+CREATE TABLE "ncal:RecurrenceIdentifierRange" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "ncal:RecurrenceRule" (ID INTEGER NOT NULL PRIMARY KEY,
+"ncal:until" INTEGER, "ncal:until:graph" INTEGER,
+"ncal:until:localDate" INTEGER, "ncal:until:localTime" INTEGER,
+"ncal:wkst" INTEGER, "ncal:wkst:graph" INTEGER, "ncal:interval"
+INTEGER, "ncal:interval:graph" INTEGER, "ncal:count" INTEGER,
+"ncal:count:graph" INTEGER, "ncal:freq" INTEGER, "ncal:freq:graph"
+INTEGER);
+CREATE TABLE "ncal:RecurrenceRule_ncal:byday" (ID INTEGER NOT NULL,
+"ncal:byday" INTEGER NOT NULL, "ncal:byday:graph" INTEGER);
+CREATE TABLE "ncal:RecurrenceRule_ncal:byhour" (ID INTEGER NOT NULL,
+"ncal:byhour" INTEGER NOT NULL, "ncal:byhour:graph" INTEGER);
+CREATE TABLE "ncal:RecurrenceRule_ncal:byminute" (ID INTEGER NOT NULL,
+"ncal:byminute" INTEGER NOT NULL, "ncal:byminute:graph" INTEGER);
+CREATE TABLE "ncal:RecurrenceRule_ncal:bymonth" (ID INTEGER NOT NULL,
+"ncal:bymonth" INTEGER NOT NULL, "ncal:bymonth:graph" INTEGER);
+CREATE TABLE "ncal:RecurrenceRule_ncal:bymonthday" (ID INTEGER NOT
+NULL, "ncal:bymonthday" INTEGER NOT NULL, "ncal:bymonthday:graph"
+INTEGER);
+CREATE TABLE "ncal:RecurrenceRule_ncal:bysecond" (ID INTEGER NOT NULL,
+"ncal:bysecond" INTEGER NOT NULL, "ncal:bysecond:graph" INTEGER);
+CREATE TABLE "ncal:RecurrenceRule_ncal:bysetpos" (ID INTEGER NOT NULL,
+"ncal:bysetpos" INTEGER NOT NULL, "ncal:bysetpos:graph" INTEGER);
+CREATE TABLE "ncal:RecurrenceRule_ncal:byweekno" (ID INTEGER NOT NULL,
+"ncal:byweekno" INTEGER NOT NULL, "ncal:byweekno:graph" INTEGER);
+CREATE TABLE "ncal:RecurrenceRule_ncal:byyearday" (ID INTEGER NOT
+NULL, "ncal:byyearday" INTEGER NOT NULL, "ncal:byyearday:graph"
+INTEGER);
+CREATE TABLE "ncal:RequestStatus" (ID INTEGER NOT NULL PRIMARY KEY,
+"ncal:statusDescription" TEXT COLLATE NOCASE,
+"ncal:statusDescription:graph" INTEGER, "ncal:returnStatus" TEXT
+COLLATE NOCASE, "ncal:returnStatus:graph" INTEGER,
+"ncal:requestStatusData" TEXT COLLATE NOCASE,
+"ncal:requestStatusData:graph" INTEGER);
+CREATE TABLE "ncal:TimeTransparency" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "ncal:Timezone" (ID INTEGER NOT NULL PRIMARY KEY,
+"ncal:tzurl" INTEGER, "ncal:tzurl:graph" INTEGER, "ncal:standard"
+INTEGER, "ncal:standard:graph" INTEGER, "ncal:daylight" INTEGER,
+"ncal:daylight:graph" INTEGER, "ncal:tzid" TEXT COLLATE NOCASE,
+"ncal:tzid:graph" INTEGER);
+CREATE TABLE "ncal:TimezoneObservance" (ID INTEGER NOT NULL PRIMARY
+KEY, "ncal:tzoffsetfrom" TEXT COLLATE NOCASE,
+"ncal:tzoffsetfrom:graph" INTEGER, "ncal:tzoffsetto" TEXT COLLATE
+NOCASE, "ncal:tzoffsetto:graph" INTEGER, "ncal:tzname" TEXT COLLATE
+NOCASE, "ncal:tzname:graph" INTEGER);
+CREATE TABLE "ncal:Todo" (ID INTEGER NOT NULL PRIMARY KEY,
+"ncal:percentComplete" INTEGER, "ncal:percentComplete:graph" INTEGER,
+"ncal:completed" INTEGER, "ncal:completed:graph" INTEGER,
+"ncal:completed:localDate" INTEGER, "ncal:completed:localTime"
+INTEGER, "ncal:todoStatus" INTEGER, "ncal:todoStatus:graph" INTEGER,
+"ncal:due" INTEGER, "ncal:due:graph" INTEGER);
+CREATE TABLE "ncal:TodoStatus" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "ncal:Trigger" (ID INTEGER NOT NULL PRIMARY KEY,
+"ncal:related" INTEGER, "ncal:related:graph" INTEGER,
+"ncal:triggerDateTime" INTEGER, "ncal:triggerDateTime:graph" INTEGER,
+"ncal:triggerDateTime:localDate" INTEGER,
+"ncal:triggerDateTime:localTime" INTEGER, "ncal:triggerDuration"
+INTEGER, "ncal:triggerDuration:graph" INTEGER);
+CREATE TABLE "ncal:TriggerRelation" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "ncal:UnionParentClass" (ID INTEGER NOT NULL PRIMARY KEY,
+"ncal:lastModified" INTEGER, "ncal:lastModified:graph" INTEGER,
+"ncal:lastModified:localDate" INTEGER, "ncal:lastModified:localTime"
+INTEGER, "ncal:trigger" INTEGER, "ncal:trigger:graph" INTEGER,
+"ncal:created" INTEGER, "ncal:created:graph" INTEGER,
+"ncal:created:localDate" INTEGER, "ncal:created:localTime" INTEGER,
+"ncal:url" INTEGER, "ncal:url:graph" INTEGER, "ncal:comment" TEXT
+COLLATE NOCASE, "ncal:comment:graph" INTEGER, "ncal:summaryAltRep"
+INTEGER, "ncal:summaryAltRep:graph" INTEGER, "ncal:priority" INTEGER,
+"ncal:priority:graph" INTEGER, "ncal:location" TEXT COLLATE NOCASE,
+"ncal:location:graph" INTEGER, "ncal:uid" TEXT COLLATE NOCASE,
+"ncal:uid:graph" INTEGER, "ncal:requestStatus" INTEGER,
+"ncal:requestStatus:graph" INTEGER, "ncal:recurrenceId" INTEGER,
+"ncal:recurrenceId:graph" INTEGER, "ncal:dtstamp" INTEGER,
+"ncal:dtstamp:graph" INTEGER, "ncal:dtstamp:localDate" INTEGER,
+"ncal:dtstamp:localTime" INTEGER, "ncal:class" INTEGER,
+"ncal:class:graph" INTEGER, "ncal:organizer" INTEGER,
+"ncal:organizer:graph" INTEGER, "ncal:dtend" INTEGER,
+"ncal:dtend:graph" INTEGER, "ncal:summary" TEXT COLLATE NOCASE,
+"ncal:summary:graph" INTEGER, "ncal:descriptionAltRep" INTEGER,
+"ncal:descriptionAltRep:graph" INTEGER, "ncal:commentAltRep" INTEGER,
+"ncal:commentAltRep:graph" INTEGER, "ncal:sequence" INTEGER,
+"ncal:sequence:graph" INTEGER, "ncal:contact" TEXT COLLATE NOCASE,
+"ncal:contact:graph" INTEGER, "ncal:contactAltRep" INTEGER,
+"ncal:contactAltRep:graph" INTEGER, "ncal:locationAltRep" INTEGER,
+"ncal:locationAltRep:graph" INTEGER, "ncal:geo" INTEGER,
+"ncal:geo:graph" INTEGER, "ncal:resourcesAltRep" INTEGER,
+"ncal:resourcesAltRep:graph" INTEGER, "ncal:dtstart" INTEGER,
+"ncal:dtstart:graph" INTEGER, "ncal:description" TEXT COLLATE NOCASE,
+"ncal:description:graph" INTEGER, "ncal:relatedToSibling" TEXT COLLATE
+NOCASE, "ncal:relatedToSibling:graph" INTEGER, "ncal:duration"
+INTEGER, "ncal:duration:graph" INTEGER);
+CREATE TABLE "ncal:UnionParentClass_ncal:attach" (ID INTEGER NOT NULL,
+"ncal:attach" INTEGER NOT NULL, "ncal:attach:graph" INTEGER);
+CREATE TABLE "ncal:UnionParentClass_ncal:attendee" (ID INTEGER NOT
+NULL, "ncal:attendee" INTEGER NOT NULL, "ncal:attendee:graph"
+INTEGER);
+CREATE TABLE "ncal:UnionParentClass_ncal:categories" (ID INTEGER NOT
+NULL, "ncal:categories" TEXT NOT NULL, "ncal:categories:graph"
+INTEGER);
+CREATE TABLE "ncal:UnionParentClass_ncal:exdate" (ID INTEGER NOT NULL,
+"ncal:exdate" INTEGER NOT NULL, "ncal:exdate:graph" INTEGER);
+CREATE TABLE "ncal:UnionParentClass_ncal:exrule" (ID INTEGER NOT NULL,
+"ncal:exrule" INTEGER NOT NULL, "ncal:exrule:graph" INTEGER);
+CREATE TABLE "ncal:UnionParentClass_ncal:hasAlarm" (ID INTEGER NOT
+NULL, "ncal:hasAlarm" INTEGER NOT NULL, "ncal:hasAlarm:graph"
+INTEGER);
+CREATE TABLE "ncal:UnionParentClass_ncal:ncalRelation" (ID INTEGER NOT
+NULL, "ncal:ncalRelation" TEXT NOT NULL, "ncal:ncalRelation:graph"
+INTEGER);
+CREATE TABLE "ncal:UnionParentClass_ncal:rdate" (ID INTEGER NOT NULL,
+"ncal:rdate" INTEGER NOT NULL, "ncal:rdate:graph" INTEGER);
+CREATE TABLE "ncal:UnionParentClass_ncal:relatedToChild" (ID INTEGER
+NOT NULL, "ncal:relatedToChild" TEXT NOT NULL,
+"ncal:relatedToChild:graph" INTEGER);
+CREATE TABLE "ncal:UnionParentClass_ncal:relatedToParent" (ID INTEGER
+NOT NULL, "ncal:relatedToParent" TEXT NOT NULL,
+"ncal:relatedToParent:graph" INTEGER);
+CREATE TABLE "ncal:UnionParentClass_ncal:resources" (ID INTEGER NOT
+NULL, "ncal:resources" TEXT NOT NULL, "ncal:resources:graph" INTEGER);
+CREATE TABLE "ncal:UnionParentClass_ncal:rrule" (ID INTEGER NOT NULL,
+"ncal:rrule" INTEGER NOT NULL, "ncal:rrule:graph" INTEGER);
+CREATE TABLE "ncal:Weekday" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nco:Affiliation" (ID INTEGER NOT NULL PRIMARY KEY,
+"nco:department" TEXT COLLATE NOCASE, "nco:department:graph" INTEGER,
+"nco:org" INTEGER, "nco:org:graph" INTEGER, "nco:role" TEXT COLLATE
+NOCASE, "nco:role:graph" INTEGER);
+CREATE TABLE "nco:Affiliation_nco:title" (ID INTEGER NOT NULL,
+"nco:title" TEXT NOT NULL, "nco:title:graph" INTEGER);
+CREATE TABLE "nco:AuthorizationStatus" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nco:BbsNumber" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nco:CarPhoneNumber" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nco:CellPhoneNumber" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nco:Contact" (ID INTEGER NOT NULL PRIMARY KEY,
+"nco:fullname" TEXT COLLATE NOCASE, "nco:fullname:graph" INTEGER,
+"nco:key" INTEGER, "nco:key:graph" INTEGER, "nco:contactUID" TEXT
+COLLATE NOCASE, "nco:contactUID:graph" INTEGER, "nco:contactLocalUID"
+TEXT COLLATE NOCASE, "nco:contactLocalUID:graph" INTEGER,
+"nco:hasLocation" INTEGER, "nco:hasLocation:graph" INTEGER,
+"nco:nickname" TEXT COLLATE NOCASE, "nco:nickname:graph" INTEGER,
+"nco:representative" INTEGER, "nco:representative:graph" INTEGER,
+"nco:photo" INTEGER, "nco:photo:graph" INTEGER, "nco:birthDate"
+INTEGER, "nco:birthDate:graph" INTEGER, "nco:birthDate:localDate"
+INTEGER, "nco:birthDate:localTime" INTEGER, "nco:sound" INTEGER,
+"nco:sound:graph" INTEGER);
+CREATE TABLE "nco:ContactGroup" (ID INTEGER NOT NULL PRIMARY KEY,
+"nco:contactGroupName" TEXT COLLATE NOCASE,
+"nco:contactGroupName:graph" INTEGER);
+CREATE TABLE "nco:ContactList" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nco:ContactListDataObject" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nco:ContactList_nco:containsContact" (ID INTEGER NOT
+NULL, "nco:containsContact" INTEGER NOT NULL,
+"nco:containsContact:graph" INTEGER);
+CREATE TABLE "nco:ContactMedium" (ID INTEGER NOT NULL PRIMARY KEY,
+"nco:contactMediumComment" TEXT COLLATE NOCASE,
+"nco:contactMediumComment:graph" INTEGER);
+CREATE TABLE "nco:Contact_ncal:anniversary" (ID INTEGER NOT NULL,
+"ncal:anniversary" INTEGER NOT NULL, "ncal:anniversary:graph"
+INTEGER);
+CREATE TABLE "nco:Contact_ncal:birthday" (ID INTEGER NOT NULL,
+"ncal:birthday" INTEGER NOT NULL, "ncal:birthday:graph" INTEGER);
+CREATE TABLE "nco:Contact_nco:belongsToGroup" (ID INTEGER NOT NULL,
+"nco:belongsToGroup" INTEGER NOT NULL, "nco:belongsToGroup:graph"
+INTEGER);
+CREATE TABLE "nco:Contact_nco:note" (ID INTEGER NOT NULL, "nco:note"
+TEXT NOT NULL, "nco:note:graph" INTEGER);
+CREATE TABLE "nco:Contact_scal:anniversary" (ID INTEGER NOT NULL,
+"scal:anniversary" INTEGER NOT NULL, "scal:anniversary:graph"
+INTEGER);
+CREATE TABLE "nco:Contact_scal:birthday" (ID INTEGER NOT NULL,
+"scal:birthday" INTEGER NOT NULL, "scal:birthday:graph" INTEGER);
+CREATE TABLE "nco:DomesticDeliveryAddress" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nco:EmailAddress" (ID INTEGER NOT NULL PRIMARY KEY,
+"nco:emailAddress" TEXT COLLATE NOCASE UNIQUE,
+"nco:emailAddress:graph" INTEGER);
+CREATE TABLE "nco:FaxNumber" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nco:Gender" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nco:IMAccount" (ID INTEGER NOT NULL PRIMARY KEY,
+"nco:imAccountAddress" INTEGER UNIQUE, "nco:imAccountAddress:graph"
+INTEGER, "nco:imAccountType" TEXT COLLATE NOCASE,
+"nco:imAccountType:graph" INTEGER, "nco:imDisplayName" TEXT COLLATE
+NOCASE, "nco:imDisplayName:graph" INTEGER, "nco:imEnabled" INTEGER,
+"nco:imEnabled:graph" INTEGER);
+CREATE TABLE "nco:IMAccount_nco:hasIMContact" (ID INTEGER NOT NULL,
+"nco:hasIMContact" INTEGER NOT NULL, "nco:hasIMContact:graph"
+INTEGER);
+CREATE TABLE "nco:IMAddress" (ID INTEGER NOT NULL PRIMARY KEY,
+"nco:imID" TEXT COLLATE NOCASE, "nco:imID:graph" INTEGER,
+"nco:imNickname" TEXT COLLATE NOCASE, "nco:imNickname:graph" INTEGER,
+"nco:imAvatar" INTEGER, "nco:imAvatar:graph" INTEGER, "nco:imProtocol"
+TEXT COLLATE NOCASE, "nco:imProtocol:graph" INTEGER,
+"nco:imStatusMessage" TEXT COLLATE NOCASE,
+"nco:imStatusMessage:graph" INTEGER, "nco:imPresence" INTEGER,
+"nco:imPresence:graph" INTEGER, "nco:presenceLastModified" INTEGER,
+"nco:presenceLastModified:graph" INTEGER,
+"nco:presenceLastModified:localDate" INTEGER,
+"nco:presenceLastModified:localTime" INTEGER,
+"nco:imAddressAuthStatusFrom" INTEGER,
+"nco:imAddressAuthStatusFrom:graph" INTEGER,
+"nco:imAddressAuthStatusTo" INTEGER, "nco:imAddressAuthStatusTo:graph"
+INTEGER);
+CREATE TABLE "nco:IMAddress_nco:imCapability" (ID INTEGER NOT NULL,
+"nco:imCapability" INTEGER NOT NULL, "nco:imCapability:graph"
+INTEGER);
+CREATE TABLE "nco:IMCapability" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nco:InternationalDeliveryAddress" (ID INTEGER NOT NULL
+PRIMARY KEY);
+CREATE TABLE "nco:IsdnNumber" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nco:MessagingNumber" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nco:ModemNumber" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nco:OrganizationContact" (ID INTEGER NOT NULL PRIMARY
+KEY, "nco:logo" INTEGER, "nco:logo:graph" INTEGER);
+CREATE TABLE "nco:PagerNumber" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nco:ParcelDeliveryAddress" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nco:PcsNumber" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nco:PersonContact" (ID INTEGER NOT NULL PRIMARY KEY,
+"nco:nameFamily" TEXT COLLATE NOCASE, "nco:nameFamily:graph" INTEGER,
+"nco:nameGiven" TEXT COLLATE NOCASE, "nco:nameGiven:graph" INTEGER,
+"nco:nameAdditional" TEXT COLLATE NOCASE, "nco:nameAdditional:graph"
+INTEGER, "nco:nameHonorificSuffix" TEXT COLLATE NOCASE,
+"nco:nameHonorificSuffix:graph" INTEGER, "nco:nameHonorificPrefix"
+TEXT COLLATE NOCASE, "nco:nameHonorificPrefix:graph" INTEGER,
+"nco:hobby" TEXT COLLATE NOCASE, "nco:hobby:graph" INTEGER,
+"nco:gender" INTEGER, "nco:gender:graph" INTEGER);
+CREATE TABLE "nco:PersonContact_nco:hasAffiliation" (ID INTEGER NOT
+NULL, "nco:hasAffiliation" INTEGER NOT NULL,
+"nco:hasAffiliation:graph" INTEGER);
+CREATE TABLE "nco:PhoneNumber" (ID INTEGER NOT NULL PRIMARY KEY,
+"nco:phoneNumber" TEXT COLLATE NOCASE, "nco:phoneNumber:graph"
+INTEGER);
+CREATE TABLE "nco:PostalAddress" (ID INTEGER NOT NULL PRIMARY KEY,
+"nco:region" TEXT COLLATE NOCASE, "nco:region:graph" INTEGER,
+"nco:country" TEXT COLLATE NOCASE, "nco:country:graph" INTEGER,
+"nco:extendedAddress" TEXT COLLATE NOCASE,
+"nco:extendedAddress:graph" INTEGER, "nco:addressLocation" INTEGER,
+"nco:addressLocation:graph" INTEGER, "nco:streetAddress" TEXT COLLATE
+NOCASE, "nco:streetAddress:graph" INTEGER, "nco:postalcode" TEXT
+COLLATE NOCASE, "nco:postalcode:graph" INTEGER, "nco:locality" TEXT
+COLLATE NOCASE, "nco:locality:graph" INTEGER, "nco:county" TEXT
+COLLATE NOCASE, "nco:county:graph" INTEGER, "nco:district" TEXT
+COLLATE NOCASE, "nco:district:graph" INTEGER, "nco:pobox" TEXT
+COLLATE NOCASE, "nco:pobox:graph" INTEGER);
+CREATE TABLE "nco:PresenceStatus" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nco:Role" (ID INTEGER NOT NULL PRIMARY KEY, "nco:video"
+INTEGER, "nco:video:graph" INTEGER);
+CREATE TABLE "nco:Role_nco:blogUrl" (ID INTEGER NOT NULL,
+"nco:blogUrl" INTEGER NOT NULL, "nco:blogUrl:graph" INTEGER);
+CREATE TABLE "nco:Role_nco:foafUrl" (ID INTEGER NOT NULL,
+"nco:foafUrl" INTEGER NOT NULL, "nco:foafUrl:graph" INTEGER);
+CREATE TABLE "nco:Role_nco:hasContactMedium" (ID INTEGER NOT NULL,
+"nco:hasContactMedium" INTEGER NOT NULL, "nco:hasContactMedium:graph"
+INTEGER);
+CREATE TABLE "nco:Role_nco:hasEmailAddress" (ID INTEGER NOT NULL,
+"nco:hasEmailAddress" INTEGER NOT NULL, "nco:hasEmailAddress:graph"
+INTEGER);
+CREATE TABLE "nco:Role_nco:hasIMAddress" (ID INTEGER NOT NULL,
+"nco:hasIMAddress" INTEGER NOT NULL, "nco:hasIMAddress:graph"
+INTEGER);
+CREATE TABLE "nco:Role_nco:hasPhoneNumber" (ID INTEGER NOT NULL,
+"nco:hasPhoneNumber" INTEGER NOT NULL, "nco:hasPhoneNumber:graph"
+INTEGER);
+CREATE TABLE "nco:Role_nco:hasPostalAddress" (ID INTEGER NOT NULL,
+"nco:hasPostalAddress" INTEGER NOT NULL, "nco:hasPostalAddress:graph"
+INTEGER);
+CREATE TABLE "nco:Role_nco:url" (ID INTEGER NOT NULL, "nco:url"
+INTEGER NOT NULL, "nco:url:graph" INTEGER);
+CREATE TABLE "nco:Role_nco:websiteUrl" (ID INTEGER NOT NULL,
+"nco:websiteUrl" INTEGER NOT NULL, "nco:websiteUrl:graph" INTEGER);
+CREATE TABLE "nco:VideoTelephoneNumber" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nco:VoicePhoneNumber" (ID INTEGER NOT NULL PRIMARY KEY,
+"nco:voiceMail" INTEGER, "nco:voiceMail:graph" INTEGER);
+CREATE TABLE "nfo:Application" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nfo:Archive" (ID INTEGER NOT NULL PRIMARY KEY,
+"nfo:uncompressedSize" INTEGER, "nfo:uncompressedSize:graph" INTEGER);
+CREATE TABLE "nfo:ArchiveItem" (ID INTEGER NOT NULL PRIMARY KEY,
+"nfo:isPasswordProtected" INTEGER, "nfo:isPasswordProtected:graph"
+INTEGER);
+CREATE TABLE "nfo:Attachment" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nfo:Audio" (ID INTEGER NOT NULL PRIMARY KEY,
+"nfo:channels" INTEGER, "nfo:channels:graph" INTEGER,
+"nfo:sideChannels" INTEGER, "nfo:sideChannels:graph" INTEGER,
+"nfo:lfeChannels" INTEGER, "nfo:lfeChannels:graph" INTEGER,
+"nfo:sampleCount" INTEGER, "nfo:sampleCount:graph" INTEGER,
+"nfo:bitsPerSample" INTEGER, "nfo:bitsPerSample:graph" INTEGER,
+"nfo:frontChannels" INTEGER, "nfo:frontChannels:graph" INTEGER,
+"nfo:sampleRate" REAL, "nfo:sampleRate:graph" INTEGER,
+"nfo:averageAudioBitrate" REAL, "nfo:averageAudioBitrate:graph"
+INTEGER, "nfo:rearChannels" INTEGER, "nfo:rearChannels:graph" INTEGER,
+"nfo:gain" INTEGER, "nfo:gain:graph" INTEGER, "nfo:peakGain" INTEGER,
+"nfo:peakGain:graph" INTEGER, "nfo:audioOffset" REAL,
+"nfo:audioOffset:graph" INTEGER);
+CREATE TABLE "nfo:Bookmark" (ID INTEGER NOT NULL PRIMARY KEY,
+"nfo:bookmarks" INTEGER, "nfo:bookmarks:graph" INTEGER,
+"nfo:characterPosition" INTEGER, "nfo:characterPosition:graph"
+INTEGER, "nfo:pageNumber" INTEGER, "nfo:pageNumber:graph" INTEGER,
+"nfo:streamPosition" INTEGER, "nfo:streamPosition:graph" INTEGER,
+"nfo:streamDuration" INTEGER, "nfo:streamDuration:graph" INTEGER);
+CREATE TABLE "nfo:BookmarkFolder" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nfo:BookmarkFolder_nfo:containsBookmark" (ID INTEGER NOT
+NULL, "nfo:containsBookmark" INTEGER NOT NULL,
+"nfo:containsBookmark:graph" INTEGER);
+CREATE TABLE "nfo:BookmarkFolder_nfo:containsBookmarkFolder" (ID
+INTEGER NOT NULL, "nfo:containsBookmarkFolder" INTEGER NOT NULL,
+"nfo:containsBookmarkFolder:graph" INTEGER);
+CREATE TABLE "nfo:CompressionType" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nfo:Cursor" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nfo:DataContainer" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nfo:DeletedResource" (ID INTEGER NOT NULL PRIMARY KEY,
+"nfo:originalLocation" TEXT COLLATE NOCASE,
+"nfo:originalLocation:graph" INTEGER, "nfo:deletionDate" INTEGER,
+"nfo:deletionDate:graph" INTEGER, "nfo:deletionDate:localDate"
+INTEGER, "nfo:deletionDate:localTime" INTEGER);
+CREATE TABLE "nfo:Document" (ID INTEGER NOT NULL PRIMARY KEY,
+"nfo:tableOfContents" TEXT COLLATE NOCASE,
+"nfo:tableOfContents:graph" INTEGER);
+CREATE TABLE "nfo:EmbeddedFileDataObject" (ID INTEGER NOT NULL PRIMARY
+KEY, "nfo:encoding" TEXT COLLATE NOCASE, "nfo:encoding:graph"
+INTEGER);
+CREATE TABLE "nfo:Equipment" (ID INTEGER NOT NULL PRIMARY KEY,
+"nfo:manufacturer" TEXT COLLATE NOCASE, "nfo:manufacturer:graph"
+INTEGER, "nfo:model" TEXT COLLATE NOCASE, "nfo:model:graph" INTEGER,
+"nfo:equipmentSoftware" TEXT COLLATE NOCASE,
+"nfo:equipmentSoftware:graph" INTEGER);
+CREATE TABLE "nfo:Executable" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nfo:FileDataObject" (ID INTEGER NOT NULL PRIMARY KEY,
+"nfo:fileLastAccessed" INTEGER, "nfo:fileLastAccessed:graph" INTEGER,
+"nfo:fileLastAccessed:localDate" INTEGER,
+"nfo:fileLastAccessed:localTime" INTEGER, "nfo:fileCreated" INTEGER,
+"nfo:fileCreated:graph" INTEGER, "nfo:fileCreated:localDate" INTEGER,
+"nfo:fileCreated:localTime" INTEGER, "nfo:fileSize" INTEGER,
+"nfo:fileSize:graph" INTEGER, "nfo:permissions" TEXT COLLATE NOCASE,
+"nfo:permissions:graph" INTEGER, "nfo:fileName" TEXT COLLATE NOCASE,
+"nfo:fileName:graph" INTEGER, "nfo:hasHash" INTEGER,
+"nfo:hasHash:graph" INTEGER, "nfo:fileOwner" INTEGER,
+"nfo:fileOwner:graph" INTEGER, "nfo:fileLastModified" INTEGER,
+"nfo:fileLastModified:graph" INTEGER, "nfo:fileLastModified:localDate"
+INTEGER, "nfo:fileLastModified:localTime" INTEGER);
+CREATE TABLE "nfo:FileHash" (ID INTEGER NOT NULL PRIMARY KEY,
+"nfo:hashValue" TEXT COLLATE NOCASE, "nfo:hashValue:graph" INTEGER,
+"nfo:hashAlgorithm" TEXT COLLATE NOCASE, "nfo:hashAlgorithm:graph"
+INTEGER);
+CREATE TABLE "nfo:Filesystem" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nfo:FilesystemImage" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nfo:Folder" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nfo:Font" (ID INTEGER NOT NULL PRIMARY KEY,
+"nfo:fontFamily" TEXT COLLATE NOCASE, "nfo:fontFamily:graph" INTEGER,
+"nfo:foundry" INTEGER, "nfo:foundry:graph" INTEGER);
+CREATE TABLE "nfo:HardDiskPartition" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nfo:HelpDocument" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nfo:HtmlDocument" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nfo:Icon" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nfo:Image" (ID INTEGER NOT NULL PRIMARY KEY,
+"nfo:verticalResolution" INTEGER, "nfo:verticalResolution:graph"
+INTEGER, "nfo:horizontalResolution" INTEGER,
+"nfo:horizontalResolution:graph" INTEGER, "nfo:orientation" INTEGER,
+"nfo:orientation:graph" INTEGER);
+CREATE TABLE "nfo:Image_nfo:depicts" (ID INTEGER NOT NULL,
+"nfo:depicts" INTEGER NOT NULL, "nfo:depicts:graph" INTEGER);
+CREATE TABLE "nfo:Image_nfo:hasRegionOfInterest" (ID INTEGER NOT NULL,
+"nfo:hasRegionOfInterest" INTEGER NOT NULL,
+"nfo:hasRegionOfInterest:graph" INTEGER);
+CREATE TABLE "nfo:Media" (ID INTEGER NOT NULL PRIMARY KEY, "nfo:count"
+INTEGER, "nfo:count:graph" INTEGER, "nfo:duration" INTEGER,
+"nfo:duration:graph" INTEGER, "nfo:compressionType" INTEGER,
+"nfo:compressionType:graph" INTEGER, "nfo:hasMediaStream" INTEGER,
+"nfo:hasMediaStream:graph" INTEGER, "nfo:bitDepth" INTEGER,
+"nfo:bitDepth:graph" INTEGER, "nfo:codec" TEXT COLLATE NOCASE,
+"nfo:codec:graph" INTEGER, "nfo:encodedBy" TEXT COLLATE NOCASE,
+"nfo:encodedBy:graph" INTEGER, "nfo:bitrateType" TEXT COLLATE NOCASE,
+"nfo:bitrateType:graph" INTEGER, "nfo:averageBitrate" REAL,
+"nfo:averageBitrate:graph" INTEGER, "nfo:genre" TEXT COLLATE NOCASE,
+"nfo:genre:graph" INTEGER, "nfo:equipment" INTEGER,
+"nfo:equipment:graph" INTEGER, "nfo:lastPlayedPosition" INTEGER,
+"nfo:lastPlayedPosition:graph" INTEGER, "nmm:genre" TEXT COLLATE
+NOCASE, "nmm:genre:graph" INTEGER, "nmm:skipCounter" INTEGER,
+"nmm:skipCounter:graph" INTEGER, "nmm:dlnaProfile" TEXT COLLATE
+NOCASE, "nmm:dlnaProfile:graph" INTEGER, "nmm:dlnaMime" TEXT COLLATE
+NOCASE, "nmm:dlnaMime:graph" INTEGER, "nmm:uPnPShared" INTEGER,
+"nmm:uPnPShared:graph" INTEGER, "mtp:credits" TEXT COLLATE NOCASE,
+"mtp:credits:graph" INTEGER, "mtp:creator" TEXT COLLATE NOCASE,
+"mtp:creator:graph" INTEGER);
+CREATE TABLE "nfo:MediaFileListEntry" (ID INTEGER NOT NULL PRIMARY
+KEY, "nfo:listPosition" REAL, "nfo:listPosition:graph" INTEGER,
+"nfo:entryUrl" TEXT COLLATE NOCASE, "nfo:entryUrl:graph" INTEGER);
+CREATE TABLE "nfo:MediaList" (ID INTEGER NOT NULL PRIMARY KEY,
+"nfo:entryCounter" INTEGER, "nfo:entryCounter:graph" INTEGER,
+"nfo:listDuration" INTEGER, "nfo:listDuration:graph" INTEGER);
+CREATE TABLE "nfo:MediaList_nfo:hasMediaFileListEntry" (ID INTEGER NOT
+NULL, "nfo:hasMediaFileListEntry" INTEGER NOT NULL,
+"nfo:hasMediaFileListEntry:graph" INTEGER);
+CREATE TABLE "nfo:MediaList_nfo:mediaListEntry" (ID INTEGER NOT NULL,
+"nfo:mediaListEntry" INTEGER NOT NULL, "nfo:mediaListEntry:graph"
+INTEGER);
+CREATE TABLE "nfo:MediaStream" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nfo:Media_mtp:hidden" (ID INTEGER NOT NULL, "mtp:hidden"
+INTEGER NOT NULL, "mtp:hidden:graph" INTEGER);
+CREATE TABLE "nfo:Media_nmm:alternativeMedia" (ID INTEGER NOT NULL,
+"nmm:alternativeMedia" INTEGER NOT NULL, "nmm:alternativeMedia:graph"
+INTEGER);
+CREATE TABLE "nfo:MindMap" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nfo:Note" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nfo:OperatingSystem" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nfo:Orientation" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nfo:PaginatedTextDocument" (ID INTEGER NOT NULL PRIMARY
+KEY, "nfo:pageCount" INTEGER, "nfo:pageCount:graph" INTEGER);
+CREATE TABLE "nfo:PlainTextDocument" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nfo:Presentation" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nfo:RasterImage" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nfo:RegionOfInterest" (ID INTEGER NOT NULL PRIMARY KEY,
+"nfo:regionOfInterestX" REAL, "nfo:regionOfInterestX:graph" INTEGER,
+"nfo:regionOfInterestY" REAL, "nfo:regionOfInterestY:graph" INTEGER,
+"nfo:regionOfInterestWidth" REAL, "nfo:regionOfInterestWidth:graph"
+INTEGER, "nfo:regionOfInterestHeight" REAL,
+"nfo:regionOfInterestHeight:graph" INTEGER, "nfo:regionOfInterestType"
+INTEGER, "nfo:regionOfInterestType:graph" INTEGER, "nfo:roiRefersTo"
+INTEGER, "nfo:roiRefersTo:graph" INTEGER);
+CREATE TABLE "nfo:RegionOfInterestContent" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nfo:RemoteDataObject" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nfo:RemotePortAddress" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nfo:Software" (ID INTEGER NOT NULL PRIMARY KEY,
+"nfo:conflicts" INTEGER, "nfo:conflicts:graph" INTEGER,
+"nfo:supercedes" INTEGER, "nfo:supercedes:graph" INTEGER,
+"nfo:softwareIcon" INTEGER, "nfo:softwareIcon:graph" INTEGER,
+"nfo:softwareCmdLine" TEXT COLLATE NOCASE,
+"nfo:softwareCmdLine:graph" INTEGER);
+CREATE TABLE "nfo:SoftwareApplication" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nfo:SoftwareCategory" (ID INTEGER NOT NULL PRIMARY KEY,
+"nfo:softwareCategoryIcon" INTEGER, "nfo:softwareCategoryIcon:graph"
+INTEGER);
+CREATE TABLE "nfo:SoftwareItem" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nfo:SoftwareService" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nfo:SourceCode" (ID INTEGER NOT NULL PRIMARY KEY,
+"nfo:commentCharacterCount" INTEGER, "nfo:commentCharacterCount:graph"
+INTEGER, "nfo:programmingLanguage" TEXT COLLATE NOCASE,
+"nfo:programmingLanguage:graph" INTEGER, "nfo:definesClass" TEXT
+COLLATE NOCASE, "nfo:definesClass:graph" INTEGER,
+"nfo:definesFunction" TEXT COLLATE NOCASE,
+"nfo:definesFunction:graph" INTEGER, "nfo:definesGlobalVariable" TEXT
+COLLATE NOCASE, "nfo:definesGlobalVariable:graph" INTEGER);
+CREATE TABLE "nfo:Spreadsheet" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nfo:TextDocument" (ID INTEGER NOT NULL PRIMARY KEY,
+"nfo:wordCount" INTEGER, "nfo:wordCount:graph" INTEGER,
+"nfo:lineCount" INTEGER, "nfo:lineCount:graph" INTEGER,
+"nfo:characterCount" INTEGER, "nfo:characterCount:graph" INTEGER);
+CREATE TABLE "nfo:Trash" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nfo:VectorImage" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nfo:Video" (ID INTEGER NOT NULL PRIMARY KEY,
+"nfo:frameRate" REAL, "nfo:frameRate:graph" INTEGER, "nfo:frameCount"
+INTEGER, "nfo:frameCount:graph" INTEGER, "nfo:averageVideoBitrate"
+REAL, "nfo:averageVideoBitrate:graph" INTEGER);
+CREATE TABLE "nfo:Visual" (ID INTEGER NOT NULL PRIMARY KEY,
+"nie:contentCreated" INTEGER, "nie:contentCreated:graph" INTEGER,
+"nie:contentCreated:localDate" INTEGER, "nie:contentCreated:localTime"
+INTEGER, "nfo:aspectRatio" REAL, "nfo:aspectRatio:graph" INTEGER,
+"nfo:heading" REAL, "nfo:heading:graph" INTEGER, "nfo:tilt" REAL,
+"nfo:tilt:graph" INTEGER, "nfo:interlaceMode" INTEGER,
+"nfo:interlaceMode:graph" INTEGER, "nfo:height" INTEGER,
+"nfo:height:graph" INTEGER, "nfo:width" INTEGER, "nfo:width:graph"
+INTEGER, "nfo:colorDepth" INTEGER, "nfo:colorDepth:graph" INTEGER);
+CREATE TABLE "nfo:WebHistory" (ID INTEGER NOT NULL PRIMARY KEY,
+"nfo:domain" TEXT COLLATE NOCASE, "nfo:domain:graph" INTEGER,
+"nfo:uri" TEXT COLLATE NOCASE, "nfo:uri:graph" INTEGER);
+CREATE TABLE "nfo:Website" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nid3:ID3Audio" (ID INTEGER NOT NULL PRIMARY KEY,
+"nid3:title" TEXT COLLATE NOCASE, "nid3:title:graph" INTEGER,
+"nid3:albumTitle" TEXT COLLATE NOCASE, "nid3:albumTitle:graph"
+INTEGER, "nid3:contentType" TEXT COLLATE NOCASE,
+"nid3:contentType:graph" INTEGER, "nid3:length" INTEGER,
+"nid3:length:graph" INTEGER, "nid3:recordingYear" INTEGER,
+"nid3:recordingYear:graph" INTEGER, "nid3:trackNumber" TEXT COLLATE
+NOCASE, "nid3:trackNumber:graph" INTEGER, "nid3:partOfSet" TEXT
+COLLATE NOCASE, "nid3:partOfSet:graph" INTEGER, "nid3:comments" TEXT
+COLLATE NOCASE, "nid3:comments:graph" INTEGER);
+CREATE TABLE "nid3:ID3Audio_nid3:leadArtist" (ID INTEGER NOT NULL,
+"nid3:leadArtist" INTEGER NOT NULL, "nid3:leadArtist:graph" INTEGER);
+CREATE TABLE "nie:DataObject" (ID INTEGER NOT NULL PRIMARY KEY,
+"nie:url" TEXT COLLATE NOCASE UNIQUE, "nie:url:graph" INTEGER,
+"nie:byteSize" INTEGER, "nie:byteSize:graph" INTEGER,
+"nie:interpretedAs" INTEGER, "nie:interpretedAs:graph" INTEGER,
+"nie:lastRefreshed" INTEGER, "nie:lastRefreshed:graph" INTEGER,
+"nie:lastRefreshed:localDate" INTEGER, "nie:lastRefreshed:localTime"
+INTEGER, "nie:created" INTEGER, "nie:created:graph" INTEGER,
+"nie:created:localDate" INTEGER, "nie:created:localTime" INTEGER,
+"nfo:belongsToContainer" INTEGER, "nfo:belongsToContainer:graph"
+INTEGER, "tracker:available" INTEGER, "tracker:available:graph"
+INTEGER);
+CREATE TABLE "nie:DataObject_nie:dataSource" (ID INTEGER NOT NULL,
+"nie:dataSource" INTEGER NOT NULL, "nie:dataSource:graph" INTEGER);
+CREATE TABLE "nie:DataObject_nie:isPartOf" (ID INTEGER NOT NULL,
+"nie:isPartOf" INTEGER NOT NULL, "nie:isPartOf:graph" INTEGER);
+CREATE TABLE "nie:DataSource" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nie:InformationElement" (ID INTEGER NOT NULL PRIMARY
+KEY, "nie:title" TEXT COLLATE NOCASE, "nie:title:graph" INTEGER,
+"nie:contentLastModified" INTEGER, "nie:contentLastModified:graph"
+INTEGER, "nie:contentLastModified:localDate" INTEGER,
+"nie:contentLastModified:localTime" INTEGER, "nie:subject" TEXT
+COLLATE NOCASE, "nie:subject:graph" INTEGER, "nie:mimeType" TEXT
+COLLATE NOCASE, "nie:mimeType:graph" INTEGER, "nie:language" TEXT
+COLLATE NOCASE, "nie:language:graph" INTEGER, "nie:plainTextContent"
+TEXT COLLATE NOCASE, "nie:plainTextContent:graph" INTEGER,
+"nie:legal" TEXT COLLATE NOCASE, "nie:legal:graph" INTEGER,
+"nie:generator" TEXT COLLATE NOCASE, "nie:generator:graph" INTEGER,
+"nie:description" TEXT COLLATE NOCASE, "nie:description:graph"
+INTEGER, "nie:disclaimer" TEXT COLLATE NOCASE, "nie:disclaimer:graph"
+INTEGER, "nie:depends" INTEGER, "nie:depends:graph" INTEGER,
+"nie:links" INTEGER, "nie:links:graph" INTEGER, "nie:copyright" TEXT
+COLLATE NOCASE, "nie:copyright:graph" INTEGER, "nie:comment" TEXT
+COLLATE NOCASE, "nie:comment:graph" INTEGER, "nie:isStoredAs"
+INTEGER, "nie:isStoredAs:graph" INTEGER, "nie:version" TEXT COLLATE
+NOCASE, "nie:version:graph" INTEGER, "nie:contentCreated" INTEGER,
+"nie:contentCreated:graph" INTEGER, "nie:contentCreated:localDate"
+INTEGER, "nie:contentCreated:localTime" INTEGER, "nie:contentAccessed"
+INTEGER, "nie:contentAccessed:graph" INTEGER,
+"nie:contentAccessed:localDate" INTEGER,
+"nie:contentAccessed:localTime" INTEGER, "nie:license" TEXT COLLATE
+NOCASE, "nie:license:graph" INTEGER, "nie:identifier" TEXT COLLATE
+NOCASE, "nie:identifier:graph" INTEGER, "nie:licenseType" TEXT
+COLLATE NOCASE, "nie:licenseType:graph" INTEGER, "nie:characterSet"
+TEXT COLLATE NOCASE, "nie:characterSet:graph" INTEGER,
+"nie:contentSize" INTEGER, "nie:contentSize:graph" INTEGER,
+"nie:rootElementOf" INTEGER, "nie:rootElementOf:graph" INTEGER,
+"nie:usageCounter" INTEGER, "nie:usageCounter:graph" INTEGER,
+"nco:publisher" INTEGER, "nco:publisher:graph" INTEGER,
+"nfo:isContentEncrypted" INTEGER, "nfo:isContentEncrypted:graph"
+INTEGER, "slo:location" INTEGER, "slo:location:graph" INTEGER,
+"nfo:isBootable" INTEGER, "nfo:isBootable:graph" INTEGER, "osinfo:id"
+TEXT COLLATE NOCASE, "osinfo:id:graph" INTEGER, "osinfo:mediaId" TEXT
+COLLATE NOCASE, "osinfo:mediaId:graph" INTEGER);
+CREATE TABLE "nie:InformationElement_mlo:location" (ID INTEGER NOT
+NULL, "mlo:location" INTEGER NOT NULL, "mlo:location:graph" INTEGER);
+CREATE TABLE "nie:InformationElement_nao:hasProperty" (ID INTEGER NOT
+NULL, "nao:hasProperty" INTEGER NOT NULL, "nao:hasProperty:graph"
+INTEGER);
+CREATE TABLE "nie:InformationElement_nco:contributor" (ID INTEGER NOT
+NULL, "nco:contributor" INTEGER NOT NULL, "nco:contributor:graph"
+INTEGER);
+CREATE TABLE "nie:InformationElement_nco:creator" (ID INTEGER NOT
+NULL, "nco:creator" INTEGER NOT NULL, "nco:creator:graph" INTEGER);
+CREATE TABLE "nie:InformationElement_nie:hasLogicalPart" (ID INTEGER
+NOT NULL, "nie:hasLogicalPart" INTEGER NOT NULL,
+"nie:hasLogicalPart:graph" INTEGER);
+CREATE TABLE "nie:InformationElement_nie:hasPart" (ID INTEGER NOT
+NULL, "nie:hasPart" INTEGER NOT NULL, "nie:hasPart:graph" INTEGER);
+CREATE TABLE "nie:InformationElement_nie:informationElementDate" (ID
+INTEGER NOT NULL, "nie:informationElementDate" INTEGER NOT NULL,
+"nie:informationElementDate:graph" INTEGER,
+"nie:informationElementDate:localDate" INTEGER NOT NULL,
+"nie:informationElementDate:localTime" INTEGER NOT NULL);
+CREATE TABLE "nie:InformationElement_nie:isLogicalPartOf" (ID INTEGER
+NOT NULL, "nie:isLogicalPartOf" INTEGER NOT NULL,
+"nie:isLogicalPartOf:graph" INTEGER);
+CREATE TABLE "nie:InformationElement_nie:keyword" (ID INTEGER NOT
+NULL, "nie:keyword" TEXT NOT NULL, "nie:keyword:graph" INTEGER);
+CREATE TABLE "nie:InformationElement_nie:relatedTo" (ID INTEGER NOT
+NULL, "nie:relatedTo" INTEGER NOT NULL, "nie:relatedTo:graph"
+INTEGER);
+CREATE TABLE "nmm:AnalogRadio" (ID INTEGER NOT NULL PRIMARY KEY,
+"nmm:modulation" INTEGER, "nmm:modulation:graph" INTEGER,
+"nmm:frequency" INTEGER, "nmm:frequency:graph" INTEGER);
+CREATE TABLE "nmm:Artist" (ID INTEGER NOT NULL PRIMARY KEY,
+"nmm:artistName" TEXT COLLATE NOCASE, "nmm:artistName:graph"
+INTEGER);
+CREATE TABLE "nmm:DigitalRadio" (ID INTEGER NOT NULL PRIMARY KEY,
+"nmm:streamingBitrate" INTEGER, "nmm:streamingBitrate:graph" INTEGER,
+"nmm:encoding" TEXT COLLATE NOCASE, "nmm:encoding:graph" INTEGER,
+"nmm:protocol" TEXT COLLATE NOCASE, "nmm:protocol:graph" INTEGER);
+CREATE TABLE "nmm:Flash" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nmm:ImageList" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nmm:MeteringMode" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nmm:MusicAlbum" (ID INTEGER NOT NULL PRIMARY KEY,
+"nie:title" TEXT COLLATE NOCASE, "nie:title:graph" INTEGER,
+"nmm:albumTrackCount" INTEGER, "nmm:albumTrackCount:graph" INTEGER,
+"nmm:albumTitle" TEXT COLLATE NOCASE, "nmm:albumTitle:graph" INTEGER,
+"nmm:albumDuration" INTEGER, "nmm:albumDuration:graph" INTEGER,
+"nmm:albumGain" INTEGER, "nmm:albumGain:graph" INTEGER,
+"nmm:albumPeakGain" INTEGER, "nmm:albumPeakGain:graph" INTEGER);
+CREATE TABLE "nmm:MusicAlbumDisc" (ID INTEGER NOT NULL PRIMARY KEY,
+"nmm:albumDiscAlbum" INTEGER, "nmm:albumDiscAlbum:graph" INTEGER,
+"nmm:musicCDIdentifier" TEXT COLLATE NOCASE,
+"nmm:musicCDIdentifier:graph" INTEGER, "nmm:setNumber" INTEGER,
+"nmm:setNumber:graph" INTEGER);
+CREATE TABLE "nmm:MusicAlbum_nmm:albumArtist" (ID INTEGER NOT NULL,
+"nmm:albumArtist" INTEGER NOT NULL, "nmm:albumArtist:graph" INTEGER);
+CREATE TABLE "nmm:MusicPiece" (ID INTEGER NOT NULL PRIMARY KEY,
+"nie:title" TEXT COLLATE NOCASE, "nie:title:graph" INTEGER,
+"nmm:musicAlbum" INTEGER, "nmm:musicAlbum:graph" INTEGER,
+"nmm:musicAlbumDisc" INTEGER, "nmm:musicAlbumDisc:graph" INTEGER,
+"nmm:beatsPerMinute" INTEGER, "nmm:beatsPerMinute:graph" INTEGER,
+"nmm:performer" INTEGER, "nmm:performer:graph" INTEGER, "nmm:composer"
+INTEGER, "nmm:composer:graph" INTEGER, "nmm:lyricist" INTEGER,
+"nmm:lyricist:graph" INTEGER, "nmm:trackNumber" INTEGER,
+"nmm:trackNumber:graph" INTEGER,
+"nmm:internationalStandardRecordingCode" TEXT COLLATE NOCASE,
+"nmm:internationalStandardRecordingCode:graph" INTEGER);
+CREATE TABLE "nmm:MusicPiece_nmm:lyrics" (ID INTEGER NOT NULL,
+"nmm:lyrics" INTEGER NOT NULL, "nmm:lyrics:graph" INTEGER);
+CREATE TABLE "nmm:Photo" (ID INTEGER NOT NULL PRIMARY KEY,
+"nmm:exposureTime" REAL, "nmm:exposureTime:graph" INTEGER, "nmm:flash"
+INTEGER, "nmm:flash:graph" INTEGER, "nmm:fnumber" REAL,
+"nmm:fnumber:graph" INTEGER, "nmm:focalLength" REAL,
+"nmm:focalLength:graph" INTEGER, "nmm:isoSpeed" REAL,
+"nmm:isoSpeed:graph" INTEGER, "nmm:meteringMode" INTEGER,
+"nmm:meteringMode:graph" INTEGER, "nmm:whiteBalance" INTEGER,
+"nmm:whiteBalance:graph" INTEGER, "nmm:isCropped" INTEGER,
+"nmm:isCropped:graph" INTEGER, "nmm:isColorCorrected" INTEGER,
+"nmm:isColorCorrected:graph" INTEGER);
+CREATE TABLE "nmm:Playlist" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nmm:RadioModulation" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nmm:RadioStation" (ID INTEGER NOT NULL PRIMARY KEY,
+"nmm:radioIcon" INTEGER, "nmm:radioIcon:graph" INTEGER, "nmm:radioPTY"
+INTEGER, "nmm:radioPTY:graph" INTEGER);
+CREATE TABLE "nmm:RadioStation_nmm:carrier" (ID INTEGER NOT NULL,
+"nmm:carrier" INTEGER NOT NULL, "nmm:carrier:graph" INTEGER);
+CREATE TABLE "nmm:SynchronizedText" (ID INTEGER NOT NULL PRIMARY KEY,
+"nmm:isForHearingImpaired" INTEGER, "nmm:isForHearingImpaired:graph"
+INTEGER);
+CREATE TABLE "nmm:Video" (ID INTEGER NOT NULL PRIMARY KEY,
+"nmm:videoAlbum" INTEGER, "nmm:videoAlbum:graph" INTEGER,
+"nmm:isSeries" INTEGER, "nmm:isSeries:graph" INTEGER, "nmm:season"
+INTEGER, "nmm:season:graph" INTEGER, "nmm:episodeNumber" INTEGER,
+"nmm:episodeNumber:graph" INTEGER, "nmm:runTime" INTEGER,
+"nmm:runTime:graph" INTEGER, "nmm:synopsis" TEXT COLLATE NOCASE,
+"nmm:synopsis:graph" INTEGER, "nmm:MPAARating" TEXT COLLATE NOCASE,
+"nmm:MPAARating:graph" INTEGER, "nmm:category" TEXT COLLATE NOCASE,
+"nmm:category:graph" INTEGER, "nmm:producedBy" INTEGER,
+"nmm:producedBy:graph" INTEGER, "nmm:hasSubtitle" INTEGER,
+"nmm:hasSubtitle:graph" INTEGER, "nmm:isContentEncrypted" INTEGER,
+"nmm:isContentEncrypted:graph" INTEGER, "mtp:fourCC" TEXT COLLATE
+NOCASE, "mtp:fourCC:graph" INTEGER, "mtp:waveformat" TEXT COLLATE
+NOCASE, "mtp:waveformat:graph" INTEGER);
+CREATE TABLE "nmm:Video_mtp:scantype" (ID INTEGER NOT NULL,
+"mtp:scantype" INTEGER NOT NULL, "mtp:scantype:graph" INTEGER);
+CREATE TABLE "nmm:Video_nmm:director" (ID INTEGER NOT NULL,
+"nmm:director" INTEGER NOT NULL, "nmm:director:graph" INTEGER);
+CREATE TABLE "nmm:Video_nmm:leadActor" (ID INTEGER NOT NULL,
+"nmm:leadActor" INTEGER NOT NULL, "nmm:leadActor:graph" INTEGER);
+CREATE TABLE "nmm:Video_nmm:subtitle" (ID INTEGER NOT NULL,
+"nmm:subtitle" INTEGER NOT NULL, "nmm:subtitle:graph" INTEGER);
+CREATE TABLE "nmm:WhiteBalance" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nmo:Attachment" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nmo:Call" (ID INTEGER NOT NULL PRIMARY KEY,
+"nmo:sentDate" INTEGER, "nmo:sentDate:graph" INTEGER,
+"nmo:sentDate:localDate" INTEGER, "nmo:sentDate:localTime" INTEGER,
+"nmo:duration" INTEGER, "nmo:duration:graph" INTEGER);
+CREATE TABLE "nmo:CommunicationChannel" (ID INTEGER NOT NULL PRIMARY
+KEY, "nmo:lastMessageDate" INTEGER, "nmo:lastMessageDate:graph"
+INTEGER, "nmo:lastMessageDate:localDate" INTEGER,
+"nmo:lastMessageDate:localTime" INTEGER,
+"nmo:lastSuccessfulMessageDate" INTEGER,
+"nmo:lastSuccessfulMessageDate:graph" INTEGER,
+"nmo:lastSuccessfulMessageDate:localDate" INTEGER,
+"nmo:lastSuccessfulMessageDate:localTime" INTEGER);
+CREATE TABLE "nmo:CommunicationChannel_nmo:hasParticipant" (ID INTEGER
+NOT NULL, "nmo:hasParticipant" INTEGER NOT NULL,
+"nmo:hasParticipant:graph" INTEGER);
+CREATE TABLE "nmo:Conversation" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nmo:DeliveryStatus" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nmo:Email" (ID INTEGER NOT NULL PRIMARY KEY,
+"nmo:hasContent" INTEGER, "nmo:hasContent:graph" INTEGER,
+"nmo:isFlagged" INTEGER, "nmo:isFlagged:graph" INTEGER, "nmo:isRecent"
+INTEGER, "nmo:isRecent:graph" INTEGER, "nmo:status" TEXT COLLATE
+NOCASE, "nmo:status:graph" INTEGER, "nmo:responseType" TEXT COLLATE
+NOCASE, "nmo:responseType:graph" INTEGER);
+CREATE TABLE "nmo:Email_nmo:contentMimeType" (ID INTEGER NOT NULL,
+"nmo:contentMimeType" TEXT NOT NULL, "nmo:contentMimeType:graph"
+INTEGER);
+CREATE TABLE "nmo:IMMessage" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nmo:MMSMessage" (ID INTEGER NOT NULL PRIMARY KEY,
+"nmo:mmsHasContent" INTEGER, "nmo:mmsHasContent:graph" INTEGER);
+CREATE TABLE "nmo:MailAccount" (ID INTEGER NOT NULL PRIMARY KEY,
+"nmo:accountName" TEXT COLLATE NOCASE, "nmo:accountName:graph"
+INTEGER, "nmo:accountDisplayName" TEXT COLLATE NOCASE,
+"nmo:accountDisplayName:graph" INTEGER, "nmo:fromAddress" INTEGER,
+"nmo:fromAddress:graph" INTEGER, "nmo:signature" TEXT COLLATE NOCASE,
+"nmo:signature:graph" INTEGER);
+CREATE TABLE "nmo:MailFolder" (ID INTEGER NOT NULL PRIMARY KEY,
+"nmo:folderName" TEXT COLLATE NOCASE, "nmo:folderName:graph" INTEGER,
+"nmo:serverCount" INTEGER, "nmo:serverCount:graph" INTEGER,
+"nmo:serverUnreadCount" INTEGER, "nmo:serverUnreadCount:graph"
+INTEGER);
+CREATE TABLE "nmo:MailboxDataObject" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nmo:Message" (ID INTEGER NOT NULL PRIMARY KEY,
+"nmo:sentDate" INTEGER, "nmo:sentDate:graph" INTEGER,
+"nmo:sentDate:localDate" INTEGER, "nmo:sentDate:localTime" INTEGER,
+"nmo:from" INTEGER, "nmo:from:graph" INTEGER, "nmo:isAnswered"
+INTEGER, "nmo:isAnswered:graph" INTEGER, "nmo:isDeleted" INTEGER,
+"nmo:isDeleted:graph" INTEGER, "nmo:isDraft" INTEGER,
+"nmo:isDraft:graph" INTEGER, "nmo:isRead" INTEGER, "nmo:isRead:graph"
+INTEGER, "nmo:isSent" INTEGER, "nmo:isSent:graph" INTEGER,
+"nmo:isEmergency" INTEGER, "nmo:isEmergency:graph" INTEGER,
+"nmo:htmlMessageContent" TEXT COLLATE NOCASE,
+"nmo:htmlMessageContent:graph" INTEGER, "nmo:messageId" TEXT COLLATE
+NOCASE, "nmo:messageId:graph" INTEGER, "nmo:messageSubject" TEXT
+COLLATE NOCASE, "nmo:messageSubject:graph" INTEGER,
+"nmo:receivedDate" INTEGER, "nmo:receivedDate:graph" INTEGER,
+"nmo:receivedDate:localDate" INTEGER, "nmo:receivedDate:localTime"
+INTEGER, "nmo:replyTo" INTEGER, "nmo:replyTo:graph" INTEGER,
+"nmo:sender" INTEGER, "nmo:sender:graph" INTEGER, "nmo:conversation"
+INTEGER, "nmo:conversation:graph" INTEGER, "nmo:communicationChannel"
+INTEGER, "nmo:communicationChannel:graph" INTEGER,
+"nmo:deliveryStatus" INTEGER, "nmo:deliveryStatus:graph" INTEGER,
+"nmo:reportDelivery" INTEGER, "nmo:reportDelivery:graph" INTEGER,
+"nmo:sentWithReportRead" INTEGER, "nmo:sentWithReportRead:graph"
+INTEGER, "nmo:reportReadStatus" INTEGER, "nmo:reportReadStatus:graph"
+INTEGER, "nmo:mustAnswerReportRead" INTEGER,
+"nmo:mustAnswerReportRead:graph" INTEGER, "nmo:mmsId" TEXT COLLATE
+NOCASE, "nmo:mmsId:graph" INTEGER);
+CREATE TABLE "nmo:MessageHeader" (ID INTEGER NOT NULL PRIMARY KEY,
+"nmo:headerName" TEXT COLLATE NOCASE, "nmo:headerName:graph" INTEGER,
+"nmo:headerValue" TEXT COLLATE NOCASE, "nmo:headerValue:graph"
+INTEGER);
+CREATE TABLE "nmo:Message_nmo:bcc" (ID INTEGER NOT NULL, "nmo:bcc"
+INTEGER NOT NULL, "nmo:bcc:graph" INTEGER);
+CREATE TABLE "nmo:Message_nmo:cc" (ID INTEGER NOT NULL, "nmo:cc"
+INTEGER NOT NULL, "nmo:cc:graph" INTEGER);
+CREATE TABLE "nmo:Message_nmo:hasAttachment" (ID INTEGER NOT NULL,
+"nmo:hasAttachment" INTEGER NOT NULL, "nmo:hasAttachment:graph"
+INTEGER);
+CREATE TABLE "nmo:Message_nmo:inReplyTo" (ID INTEGER NOT NULL,
+"nmo:inReplyTo" INTEGER NOT NULL, "nmo:inReplyTo:graph" INTEGER);
+CREATE TABLE "nmo:Message_nmo:messageHeader" (ID INTEGER NOT NULL,
+"nmo:messageHeader" INTEGER NOT NULL, "nmo:messageHeader:graph"
+INTEGER);
+CREATE TABLE "nmo:Message_nmo:recipient" (ID INTEGER NOT NULL,
+"nmo:recipient" INTEGER NOT NULL, "nmo:recipient:graph" INTEGER);
+CREATE TABLE "nmo:Message_nmo:references" (ID INTEGER NOT NULL,
+"nmo:references" INTEGER NOT NULL, "nmo:references:graph" INTEGER);
+CREATE TABLE "nmo:Message_nmo:to" (ID INTEGER NOT NULL, "nmo:to"
+INTEGER NOT NULL, "nmo:to:graph" INTEGER);
+CREATE TABLE "nmo:MimePart" (ID INTEGER NOT NULL PRIMARY KEY,
+"nmo:charSet" TEXT COLLATE NOCASE, "nmo:charSet:graph" INTEGER,
+"nmo:contentId" TEXT COLLATE NOCASE, "nmo:contentId:graph" INTEGER,
+"nmo:contentTransferEncoding" TEXT COLLATE NOCASE,
+"nmo:contentTransferEncoding:graph" INTEGER, "nmo:contentDescription"
+TEXT COLLATE NOCASE, "nmo:contentDescription:graph" INTEGER,
+"nmo:contentDisposition" TEXT COLLATE NOCASE,
+"nmo:contentDisposition:graph" INTEGER);
+CREATE TABLE "nmo:MimePart_nmo:mimeHeader" (ID INTEGER NOT NULL,
+"nmo:mimeHeader" INTEGER NOT NULL, "nmo:mimeHeader:graph" INTEGER);
+CREATE TABLE "nmo:Multipart" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nmo:Multipart_nmo:partBoundary" (ID INTEGER NOT NULL,
+"nmo:partBoundary" TEXT NOT NULL, "nmo:partBoundary:graph" INTEGER);
+CREATE TABLE "nmo:PermanentChannel" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nmo:PhoneMessage" (ID INTEGER NOT NULL PRIMARY KEY,
+"nmo:fromVCard" INTEGER, "nmo:fromVCard:graph" INTEGER, "nmo:encoding"
+TEXT COLLATE NOCASE, "nmo:encoding:graph" INTEGER,
+"nmo:phoneMessageId" INTEGER, "nmo:phoneMessageId:graph" INTEGER,
+"nmo:validityPeriod" INTEGER, "nmo:validityPeriod:graph" INTEGER);
+CREATE TABLE "nmo:PhoneMessageFolder" (ID INTEGER NOT NULL PRIMARY
+KEY, "nmo:phoneMessageFolderId" TEXT COLLATE NOCASE,
+"nmo:phoneMessageFolderId:graph" INTEGER);
+CREATE TABLE "nmo:PhoneMessageFolder_nmo:containsPhoneMessage" (ID
+INTEGER NOT NULL, "nmo:containsPhoneMessage" INTEGER NOT NULL,
+"nmo:containsPhoneMessage:graph" INTEGER);
+CREATE TABLE "nmo:PhoneMessageFolder_nmo:containsPhoneMessageFolder"
+(ID INTEGER NOT NULL, "nmo:containsPhoneMessageFolder" INTEGER NOT
+NULL, "nmo:containsPhoneMessageFolder:graph" INTEGER);
+CREATE TABLE "nmo:PhoneMessage_nmo:toVCard" (ID INTEGER NOT NULL,
+"nmo:toVCard" INTEGER NOT NULL, "nmo:toVCard:graph" INTEGER);
+CREATE TABLE "nmo:ReportReadStatus" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nmo:SMSMessage" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nmo:TransientChannel" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nmo:VOIPCall" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "nrl:InverseFunctionalProperty" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "osinfo:Installer" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "poi:ObjectOfInterest" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "rdf:Property" (ID INTEGER NOT NULL PRIMARY KEY,
+"rdfs:domain" INTEGER, "rdfs:domain:graph" INTEGER, "rdfs:range"
+INTEGER, "rdfs:range:graph" INTEGER, "tracker:indexed" INTEGER,
+"tracker:indexed:graph" INTEGER, "tracker:secondaryIndex" INTEGER,
+"tracker:secondaryIndex:graph" INTEGER, "tracker:fulltextIndexed"
+INTEGER, "tracker:fulltextIndexed:graph" INTEGER,
+"tracker:fulltextNoLimit" INTEGER, "tracker:fulltextNoLimit:graph"
+INTEGER, "tracker:transient" INTEGER, "tracker:transient:graph"
+INTEGER, "tracker:weight" INTEGER, "tracker:weight:graph" INTEGER,
+"tracker:defaultValue" TEXT COLLATE NOCASE,
+"tracker:defaultValue:graph" INTEGER, "nrl:maxCardinality" INTEGER,
+"nrl:maxCardinality:graph" INTEGER, "tracker:writeback" INTEGER,
+"tracker:writeback:graph" INTEGER, "tracker:forceJournal" INTEGER,
+"tracker:forceJournal:graph" INTEGER);
+CREATE TABLE "rdf:Property_rdfs:subPropertyOf" (ID INTEGER NOT NULL,
+"rdfs:subPropertyOf" INTEGER NOT NULL, "rdfs:subPropertyOf:graph"
+INTEGER);
+CREATE TABLE "rdfs:Class" (ID INTEGER NOT NULL PRIMARY KEY,
+"tracker:notify" INTEGER, "tracker:notify:graph" INTEGER);
+CREATE TABLE "rdfs:Class_rdfs:subClassOf" (ID INTEGER NOT NULL,
+"rdfs:subClassOf" INTEGER NOT NULL, "rdfs:subClassOf:graph" INTEGER);
+CREATE TABLE "rdfs:Class_tracker:domainIndex" (ID INTEGER NOT NULL,
+"tracker:domainIndex" INTEGER NOT NULL, "tracker:domainIndex:graph"
+INTEGER);
+CREATE TABLE "rdfs:Literal" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "rdfs:Resource" (ID INTEGER NOT NULL PRIMARY KEY,
+Available INTEGER NOT NULL, "rdfs:comment" TEXT COLLATE NOCASE,
+"rdfs:comment:graph" INTEGER, "rdfs:label" TEXT COLLATE NOCASE,
+"rdfs:label:graph" INTEGER, "tracker:added" INTEGER,
+"tracker:added:graph" INTEGER, "tracker:added:localDate" INTEGER,
+"tracker:added:localTime" INTEGER, "tracker:modified" INTEGER,
+"tracker:modified:graph" INTEGER, "tracker:damaged" INTEGER,
+"tracker:damaged:graph" INTEGER, "dc:title" TEXT COLLATE NOCASE,
+"dc:title:graph" INTEGER, "dc:creator" TEXT COLLATE NOCASE,
+"dc:creator:graph" INTEGER, "dc:subject" TEXT COLLATE NOCASE,
+"dc:subject:graph" INTEGER, "dc:description" TEXT COLLATE NOCASE,
+"dc:description:graph" INTEGER, "dc:publisher" TEXT COLLATE NOCASE,
+"dc:publisher:graph" INTEGER, "dc:type" TEXT COLLATE NOCASE,
+"dc:type:graph" INTEGER, "dc:format" TEXT COLLATE NOCASE,
+"dc:format:graph" INTEGER, "dc:identifier" TEXT COLLATE NOCASE,
+"dc:identifier:graph" INTEGER, "dc:language" TEXT COLLATE NOCASE,
+"dc:language:graph" INTEGER, "dc:coverage" TEXT COLLATE NOCASE,
+"dc:coverage:graph" INTEGER, "dc:rights" TEXT COLLATE NOCASE,
+"dc:rights:graph" INTEGER, "nao:identifier" TEXT COLLATE NOCASE,
+"nao:identifier:graph" INTEGER, "nao:numericRating" REAL,
+"nao:numericRating:graph" INTEGER, "nao:lastModified" INTEGER,
+"nao:lastModified:graph" INTEGER, "nao:lastModified:localDate"
+INTEGER, "nao:lastModified:localTime" INTEGER);
+CREATE TABLE "rdfs:Resource_dc:contributor" (ID INTEGER NOT NULL,
+"dc:contributor" TEXT NOT NULL, "dc:contributor:graph" INTEGER);
+CREATE TABLE "rdfs:Resource_dc:date" (ID INTEGER NOT NULL, "dc:date"
+INTEGER NOT NULL, "dc:date:graph" INTEGER, "dc:date:localDate" INTEGER
+NOT NULL, "dc:date:localTime" INTEGER NOT NULL);
+CREATE TABLE "rdfs:Resource_dc:relation" (ID INTEGER NOT NULL,
+"dc:relation" TEXT NOT NULL, "dc:relation:graph" INTEGER);
+CREATE TABLE "rdfs:Resource_dc:source" (ID INTEGER NOT NULL,
+"dc:source" INTEGER NOT NULL, "dc:source:graph" INTEGER);
+CREATE TABLE "rdfs:Resource_nao:deprecated" (ID INTEGER NOT NULL,
+"nao:deprecated" INTEGER NOT NULL, "nao:deprecated:graph" INTEGER);
+CREATE TABLE "rdfs:Resource_nao:hasTag" (ID INTEGER NOT NULL,
+"nao:hasTag" INTEGER NOT NULL, "nao:hasTag:graph" INTEGER);
+CREATE TABLE "rdfs:Resource_nao:isRelated" (ID INTEGER NOT NULL,
+"nao:isRelated" INTEGER NOT NULL, "nao:isRelated:graph" INTEGER);
+CREATE TABLE "rdfs:Resource_rdf:type" (ID INTEGER NOT NULL, "rdf:type"
+INTEGER NOT NULL, "rdf:type:graph" INTEGER);
+CREATE TABLE "scal:AccessLevel" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "scal:AttendanceStatus" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "scal:Attendee" (ID INTEGER NOT NULL PRIMARY KEY,
+"scal:attendanceStatus" INTEGER, "scal:attendanceStatus:graph"
+INTEGER, "scal:attendeeRole" INTEGER, "scal:attendeeRole:graph"
+INTEGER, "scal:attendeeContact" INTEGER, "scal:attendeeContact:graph"
+INTEGER, "scal:rsvp" INTEGER, "scal:rsvp:graph" INTEGER,
+"scal:calendarUserType" INTEGER, "scal:calendarUserType:graph"
+INTEGER);
+CREATE TABLE "scal:AttendeeRole" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "scal:Attendee_scal:delegated-from" (ID INTEGER NOT NULL,
+"scal:delegated-from" INTEGER NOT NULL, "scal:delegated-from:graph"
+INTEGER);
+CREATE TABLE "scal:Attendee_scal:delegated-to" (ID INTEGER NOT NULL,
+"scal:delegated-to" INTEGER NOT NULL, "scal:delegated-to:graph"
+INTEGER);
+CREATE TABLE "scal:Attendee_scal:member" (ID INTEGER NOT NULL,
+"scal:member" INTEGER NOT NULL, "scal:member:graph" INTEGER);
+CREATE TABLE "scal:Attendee_scal:sent-by" (ID INTEGER NOT NULL,
+"scal:sent-by" INTEGER NOT NULL, "scal:sent-by:graph" INTEGER);
+CREATE TABLE "scal:Calendar" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "scal:CalendarAlarm" (ID INTEGER NOT NULL PRIMARY KEY,
+"scal:alarmOffset" INTEGER, "scal:alarmOffset:graph" INTEGER);
+CREATE TABLE "scal:CalendarAlarm_scal:alarmAttendee" (ID INTEGER NOT
+NULL, "scal:alarmAttendee" INTEGER NOT NULL,
+"scal:alarmAttendee:graph" INTEGER);
+CREATE TABLE "scal:CalendarItem" (ID INTEGER NOT NULL PRIMARY KEY,
+"scal:textLocation" INTEGER, "scal:textLocation:graph" INTEGER,
+"scal:resources" TEXT COLLATE NOCASE, "scal:resources:graph" INTEGER,
+"scal:transparency" INTEGER, "scal:transparency:graph" INTEGER,
+"scal:calendarItemAlarm" INTEGER, "scal:calendarItemAlarm:graph"
+INTEGER, "scal:start" INTEGER, "scal:start:graph" INTEGER, "scal:end"
+INTEGER, "scal:end:graph" INTEGER, "scal:isAllDay" INTEGER,
+"scal:isAllDay:graph" INTEGER, "scal:priority" INTEGER,
+"scal:priority:graph" INTEGER, "scal:rdate" INTEGER,
+"scal:rdate:graph" INTEGER, "scal:exceptionRDate" INTEGER,
+"scal:exceptionRDate:graph" INTEGER);
+CREATE TABLE "scal:CalendarItem_scal:access" (ID INTEGER NOT NULL,
+"scal:access" INTEGER NOT NULL, "scal:access:graph" INTEGER);
+CREATE TABLE "scal:CalendarItem_scal:attachment" (ID INTEGER NOT NULL,
+"scal:attachment" INTEGER NOT NULL, "scal:attachment:graph" INTEGER);
+CREATE TABLE "scal:CalendarItem_scal:attendee" (ID INTEGER NOT NULL,
+"scal:attendee" INTEGER NOT NULL, "scal:attendee:graph" INTEGER);
+CREATE TABLE "scal:CalendarItem_scal:belongsToCalendar" (ID INTEGER
+NOT NULL, "scal:belongsToCalendar" INTEGER NOT NULL,
+"scal:belongsToCalendar:graph" INTEGER);
+CREATE TABLE "scal:CalendarItem_scal:contact" (ID INTEGER NOT NULL,
+"scal:contact" INTEGER NOT NULL, "scal:contact:graph" INTEGER);
+CREATE TABLE "scal:CalendarItem_scal:rrule" (ID INTEGER NOT NULL,
+"scal:rrule" INTEGER NOT NULL, "scal:rrule:graph" INTEGER);
+CREATE TABLE "scal:CalendarUserType" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "scal:Event" (ID INTEGER NOT NULL PRIMARY KEY,
+"scal:eventStatus" INTEGER, "scal:eventStatus:graph" INTEGER);
+CREATE TABLE "scal:EventStatus" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "scal:Journal" (ID INTEGER NOT NULL PRIMARY KEY,
+"scal:journalStatus" INTEGER, "scal:journalStatus:graph" INTEGER);
+CREATE TABLE "scal:JournalStatus" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "scal:RSVPValues" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "scal:RecurrenceRule" (ID INTEGER NOT NULL PRIMARY KEY,
+"scal:recurrencePattern" TEXT COLLATE NOCASE,
+"scal:recurrencePattern:graph" INTEGER, "scal:recurrenceStartDate"
+INTEGER, "scal:recurrenceStartDate:graph" INTEGER, "scal:exception"
+INTEGER, "scal:exception:graph" INTEGER);
+CREATE TABLE "scal:TimePoint" (ID INTEGER NOT NULL PRIMARY KEY,
+"scal:dateTime" INTEGER, "scal:dateTime:graph" INTEGER,
+"scal:dateTime:localDate" INTEGER, "scal:dateTime:localTime" INTEGER,
+"scal:TimeZone" TEXT COLLATE NOCASE, "scal:TimeZone:graph" INTEGER);
+CREATE TABLE "scal:Todo" (ID INTEGER NOT NULL PRIMARY KEY,
+"scal:todoStatus" INTEGER, "scal:todoStatus:graph" INTEGER, "scal:due"
+INTEGER, "scal:due:graph" INTEGER, "scal:completed" INTEGER,
+"scal:completed:graph" INTEGER, "scal:percentComplete" INTEGER,
+"scal:percentComplete:graph" INTEGER);
+CREATE TABLE "scal:TodoStatus" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "scal:TransparencyValues" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "slo:GeoLocation" (ID INTEGER NOT NULL PRIMARY KEY,
+"slo:latitude" REAL, "slo:latitude:graph" INTEGER, "slo:longitude"
+REAL, "slo:longitude:graph" INTEGER, "slo:verticalAccuracy" REAL,
+"slo:verticalAccuracy:graph" INTEGER, "slo:horizontalAccuracy" REAL,
+"slo:horizontalAccuracy:graph" INTEGER, "slo:altitude" REAL,
+"slo:altitude:graph" INTEGER, "slo:boundingLatitudeMin" REAL,
+"slo:boundingLatitudeMin:graph" INTEGER, "slo:boundingLatitudeMax"
+REAL, "slo:boundingLatitudeMax:graph" INTEGER,
+"slo:boundingLongitudeMin" REAL, "slo:boundingLongitudeMin:graph"
+INTEGER, "slo:boundingLongitudeMax" REAL,
+"slo:boundingLongitudeMax:graph" INTEGER, "slo:radius" REAL,
+"slo:radius:graph" INTEGER, "slo:timestamp" INTEGER,
+"slo:timestamp:graph" INTEGER, "slo:timestamp:localDate" INTEGER,
+"slo:timestamp:localTime" INTEGER, "slo:postalAddress" INTEGER,
+"slo:postalAddress:graph" INTEGER);
+CREATE TABLE "slo:Landmark" (ID INTEGER NOT NULL PRIMARY KEY,
+"slo:iconUrl" INTEGER, "slo:iconUrl:graph" INTEGER);
+CREATE TABLE "slo:LandmarkCategory" (ID INTEGER NOT NULL PRIMARY KEY,
+"slo:isRemovable" INTEGER, "slo:isRemovable:graph" INTEGER,
+"slo:categoryIconUrl" INTEGER, "slo:categoryIconUrl:graph" INTEGER);
+CREATE TABLE "slo:Landmark_slo:belongsToCategory" (ID INTEGER NOT
+NULL, "slo:belongsToCategory" INTEGER NOT NULL,
+"slo:belongsToCategory:graph" INTEGER);
+CREATE TABLE "slo:Landmark_slo:hasContact" (ID INTEGER NOT NULL,
+"slo:hasContact" INTEGER NOT NULL, "slo:hasContact:graph" INTEGER);
+CREATE TABLE "slo:Route" (ID INTEGER NOT NULL PRIMARY KEY,
+"slo:startTime" INTEGER, "slo:startTime:graph" INTEGER,
+"slo:startTime:localDate" INTEGER, "slo:startTime:localTime" INTEGER,
+"slo:endTime" INTEGER, "slo:endTime:graph" INTEGER,
+"slo:endTime:localDate" INTEGER, "slo:endTime:localTime" INTEGER);
+CREATE TABLE "slo:Route_slo:routeDetails" (ID INTEGER NOT NULL,
+"slo:routeDetails" TEXT NOT NULL, "slo:routeDetails:graph" INTEGER);
+CREATE TABLE "tracker:Namespace" (ID INTEGER NOT NULL PRIMARY KEY,
+"tracker:prefix" TEXT COLLATE NOCASE, "tracker:prefix:graph"
+INTEGER);
+CREATE TABLE "tracker:Ontology" (ID INTEGER NOT NULL PRIMARY KEY);
+CREATE TABLE "tracker:Volume" (ID INTEGER NOT NULL PRIMARY KEY,
+"tracker:isMounted" INTEGER, "tracker:isMounted:graph" INTEGER,
+"tracker:unmountDate" INTEGER, "tracker:unmountDate:graph" INTEGER,
+"tracker:unmountDate:localDate" INTEGER,
+"tracker:unmountDate:localTime" INTEGER, "tracker:mountPoint" INTEGER,
+"tracker:mountPoint:graph" INTEGER, "tracker:isRemovable" INTEGER,
+"tracker:isRemovable:graph" INTEGER, "tracker:isOptical" INTEGER,
+"tracker:isOptical:graph" INTEGER);
+CREATE UNIQUE INDEX "mfo:FeedMessage_mfo:enclosureList_ID_ID" ON
+"mfo:FeedMessage_mfo:enclosureList" (ID, "mfo:enclosureList");
+CREATE UNIQUE INDEX "mlo:GeoBoundingBox_mlo:bbNorthWest_ID_ID" ON
+"mlo:GeoBoundingBox_mlo:bbNorthWest" (ID, "mlo:bbNorthWest");
+CREATE UNIQUE INDEX "mlo:GeoBoundingBox_mlo:bbSouthEast_ID_ID" ON
+"mlo:GeoBoundingBox_mlo:bbSouthEast" (ID, "mlo:bbSouthEast");
+CREATE INDEX "mlo:GeoLocation_mlo:asBoundingBox_ID" ON
+"mlo:GeoLocation_mlo:asBoundingBox" (ID);
+CREATE UNIQUE INDEX "mlo:GeoLocation_mlo:asBoundingBox_ID_ID" ON
+"mlo:GeoLocation_mlo:asBoundingBox" ("mlo:asBoundingBox", ID);
+CREATE INDEX "mlo:GeoLocation_mlo:asGeoPoint_ID" ON
+"mlo:GeoLocation_mlo:asGeoPoint" (ID);
+CREATE UNIQUE INDEX "mlo:GeoLocation_mlo:asGeoPoint_ID_ID" ON
+"mlo:GeoLocation_mlo:asGeoPoint" ("mlo:asGeoPoint", ID);
+CREATE INDEX "mlo:GeoLocation_mlo:asPostalAddress_ID" ON
+"mlo:GeoLocation_mlo:asPostalAddress" (ID);
+CREATE UNIQUE INDEX "mlo:GeoLocation_mlo:asPostalAddress_ID_ID" ON
+"mlo:GeoLocation_mlo:asPostalAddress" ("mlo:asPostalAddress", ID);
+CREATE UNIQUE INDEX "mlo:GeoPoint_mlo:address_ID_ID" ON
+"mlo:GeoPoint_mlo:address" (ID, "mlo:address");
+CREATE UNIQUE INDEX "mlo:GeoPoint_mlo:altitude_ID_ID" ON
+"mlo:GeoPoint_mlo:altitude" (ID, "mlo:altitude");
+CREATE UNIQUE INDEX "mlo:GeoPoint_mlo:city_ID_ID" ON
+"mlo:GeoPoint_mlo:city" (ID, "mlo:city");
+CREATE UNIQUE INDEX "mlo:GeoPoint_mlo:country_ID_ID" ON
+"mlo:GeoPoint_mlo:country" (ID, "mlo:country");
+CREATE UNIQUE INDEX "mlo:GeoPoint_mlo:latitude_ID_ID" ON
+"mlo:GeoPoint_mlo:latitude" (ID, "mlo:latitude");
+CREATE UNIQUE INDEX "mlo:GeoPoint_mlo:longitude_ID_ID" ON
+"mlo:GeoPoint_mlo:longitude" (ID, "mlo:longitude");
+CREATE UNIQUE INDEX "mlo:GeoPoint_mlo:state_ID_ID" ON
+"mlo:GeoPoint_mlo:state" (ID, "mlo:state");
+CREATE UNIQUE INDEX "mlo:GeoPoint_mlo:timestamp_ID_ID" ON
+"mlo:GeoPoint_mlo:timestamp" (ID, "mlo:timestamp");
+CREATE UNIQUE INDEX "mlo:GeoSphere_mlo:radius_ID_ID" ON
+"mlo:GeoSphere_mlo:radius" (ID, "mlo:radius");
+CREATE UNIQUE INDEX "mlo:LandmarkCategory_mlo:isRemovable_ID_ID" ON
+"mlo:LandmarkCategory_mlo:isRemovable" (ID, "mlo:isRemovable");
+CREATE UNIQUE INDEX "mlo:Landmark_mlo:belongsToCategory_ID_ID" ON
+"mlo:Landmark_mlo:belongsToCategory" (ID, "mlo:belongsToCategory");
+CREATE UNIQUE INDEX "mlo:Landmark_mlo:poiLocation_ID_ID" ON
+"mlo:Landmark_mlo:poiLocation" (ID, "mlo:poiLocation");
+CREATE UNIQUE INDEX "mlo:LocationBoundingBox_mlo:boxEastLimit_ID_ID"
+ON "mlo:LocationBoundingBox_mlo:boxEastLimit" (ID,
+"mlo:boxEastLimit");
+CREATE UNIQUE INDEX "mlo:LocationBoundingBox_mlo:boxNorthLimit_ID_ID"
+ON "mlo:LocationBoundingBox_mlo:boxNorthLimit" (ID,
+"mlo:boxNorthLimit");
+CREATE UNIQUE INDEX
+"mlo:LocationBoundingBox_mlo:boxSouthWestCorner_ID_ID" ON
+"mlo:LocationBoundingBox_mlo:boxSouthWestCorner" (ID,
+"mlo:boxSouthWestCorner");
+CREATE UNIQUE INDEX
+"mlo:LocationBoundingBox_mlo:boxVerticalLimit_ID_ID" ON
+"mlo:LocationBoundingBox_mlo:boxVerticalLimit" (ID,
+"mlo:boxVerticalLimit");
+CREATE UNIQUE INDEX "mlo:Route_mlo:endTime_ID_ID" ON
+"mlo:Route_mlo:endTime" (ID, "mlo:endTime");
+CREATE UNIQUE INDEX "mlo:Route_mlo:routeDetails_ID_ID" ON
+"mlo:Route_mlo:routeDetails" (ID, "mlo:routeDetails");
+CREATE UNIQUE INDEX "mlo:Route_mlo:startTime_ID_ID" ON
+"mlo:Route_mlo:startTime" (ID, "mlo:startTime");
+CREATE UNIQUE INDEX "mto:Transfer_mto:transferList_ID_ID" ON
+"mto:Transfer_mto:transferList" (ID, "mto:transferList");
+CREATE UNIQUE INDEX "mto:Transfer_mto:transferPrivacyLevel_ID_ID" ON
+"mto:Transfer_mto:transferPrivacyLevel" (ID,
+"mto:transferPrivacyLevel");
+CREATE UNIQUE INDEX "mto:UploadTransfer_mto:transferCategory_ID_ID" ON
+"mto:UploadTransfer_mto:transferCategory" (ID,
+"mto:transferCategory");
+CREATE UNIQUE INDEX "nao:Tag_tracker:isDefaultTag_ID_ID" ON
+"nao:Tag_tracker:isDefaultTag" (ID, "tracker:isDefaultTag");
+CREATE UNIQUE INDEX "nao:Tag_tracker:tagRelatedTo_ID_ID" ON
+"nao:Tag_tracker:tagRelatedTo" (ID, "tracker:tagRelatedTo");
+CREATE UNIQUE INDEX "ncal:Alarm_ncal:action_ID_ID" ON
+"ncal:Alarm_ncal:action" (ID, "ncal:action");
+CREATE UNIQUE INDEX "ncal:BydayRulePart_ncal:bydayModifier_ID_ID" ON
+"ncal:BydayRulePart_ncal:bydayModifier" (ID, "ncal:bydayModifier");
+CREATE UNIQUE INDEX "ncal:BydayRulePart_ncal:bydayWeekday_ID_ID" ON
+"ncal:BydayRulePart_ncal:bydayWeekday" (ID, "ncal:bydayWeekday");
+CREATE UNIQUE INDEX "ncal:Calendar_ncal:component_ID_ID" ON
+"ncal:Calendar_ncal:component" (ID, "ncal:component");
+CREATE UNIQUE INDEX "ncal:Freebusy_ncal:freebusy_ID_ID" ON
+"ncal:Freebusy_ncal:freebusy" (ID, "ncal:freebusy");
+CREATE UNIQUE INDEX "ncal:RecurrenceRule_ncal:byday_ID_ID" ON
+"ncal:RecurrenceRule_ncal:byday" (ID, "ncal:byday");
+CREATE UNIQUE INDEX "ncal:RecurrenceRule_ncal:byhour_ID_ID" ON
+"ncal:RecurrenceRule_ncal:byhour" (ID, "ncal:byhour");
+CREATE UNIQUE INDEX "ncal:RecurrenceRule_ncal:byminute_ID_ID" ON
+"ncal:RecurrenceRule_ncal:byminute" (ID, "ncal:byminute");
+CREATE UNIQUE INDEX "ncal:RecurrenceRule_ncal:bymonth_ID_ID" ON
+"ncal:RecurrenceRule_ncal:bymonth" (ID, "ncal:bymonth");
+CREATE UNIQUE INDEX "ncal:RecurrenceRule_ncal:bymonthday_ID_ID" ON
+"ncal:RecurrenceRule_ncal:bymonthday" (ID, "ncal:bymonthday");
+CREATE UNIQUE INDEX "ncal:RecurrenceRule_ncal:bysecond_ID_ID" ON
+"ncal:RecurrenceRule_ncal:bysecond" (ID, "ncal:bysecond");
+CREATE UNIQUE INDEX "ncal:RecurrenceRule_ncal:bysetpos_ID_ID" ON
+"ncal:RecurrenceRule_ncal:bysetpos" (ID, "ncal:bysetpos");
+CREATE UNIQUE INDEX "ncal:RecurrenceRule_ncal:byweekno_ID_ID" ON
+"ncal:RecurrenceRule_ncal:byweekno" (ID, "ncal:byweekno");
+CREATE UNIQUE INDEX "ncal:RecurrenceRule_ncal:byyearday_ID_ID" ON
+"ncal:RecurrenceRule_ncal:byyearday" (ID, "ncal:byyearday");
+CREATE UNIQUE INDEX "ncal:UnionParentClass_ncal:attach_ID_ID" ON
+"ncal:UnionParentClass_ncal:attach" (ID, "ncal:attach");
+CREATE UNIQUE INDEX "ncal:UnionParentClass_ncal:attendee_ID_ID" ON
+"ncal:UnionParentClass_ncal:attendee" (ID, "ncal:attendee");
+CREATE UNIQUE INDEX "ncal:UnionParentClass_ncal:categories_ID_ID" ON
+"ncal:UnionParentClass_ncal:categories" (ID, "ncal:categories");
+CREATE UNIQUE INDEX "ncal:UnionParentClass_ncal:exdate_ID_ID" ON
+"ncal:UnionParentClass_ncal:exdate" (ID, "ncal:exdate");
+CREATE UNIQUE INDEX "ncal:UnionParentClass_ncal:exrule_ID_ID" ON
+"ncal:UnionParentClass_ncal:exrule" (ID, "ncal:exrule");
+CREATE UNIQUE INDEX "ncal:UnionParentClass_ncal:hasAlarm_ID_ID" ON
+"ncal:UnionParentClass_ncal:hasAlarm" (ID, "ncal:hasAlarm");
+CREATE UNIQUE INDEX "ncal:UnionParentClass_ncal:ncalRelation_ID_ID" ON
+"ncal:UnionParentClass_ncal:ncalRelation" (ID, "ncal:ncalRelation");
+CREATE UNIQUE INDEX "ncal:UnionParentClass_ncal:rdate_ID_ID" ON
+"ncal:UnionParentClass_ncal:rdate" (ID, "ncal:rdate");
+CREATE UNIQUE INDEX "ncal:UnionParentClass_ncal:relatedToChild_ID_ID"
+ON "ncal:UnionParentClass_ncal:relatedToChild" (ID,
+"ncal:relatedToChild");
+CREATE UNIQUE INDEX "ncal:UnionParentClass_ncal:relatedToParent_ID_ID"
+ON "ncal:UnionParentClass_ncal:relatedToParent" (ID,
+"ncal:relatedToParent");
+CREATE UNIQUE INDEX "ncal:UnionParentClass_ncal:resources_ID_ID" ON
+"ncal:UnionParentClass_ncal:resources" (ID, "ncal:resources");
+CREATE UNIQUE INDEX "ncal:UnionParentClass_ncal:rrule_ID_ID" ON
+"ncal:UnionParentClass_ncal:rrule" (ID, "ncal:rrule");
+CREATE UNIQUE INDEX "nco:Affiliation_nco:title_ID_ID" ON
+"nco:Affiliation_nco:title" (ID, "nco:title");
+CREATE UNIQUE INDEX "nco:ContactList_nco:containsContact_ID_ID" ON
+"nco:ContactList_nco:containsContact" (ID, "nco:containsContact");
+CREATE UNIQUE INDEX "nco:Contact_ncal:anniversary_ID_ID" ON
+"nco:Contact_ncal:anniversary" (ID, "ncal:anniversary");
+CREATE UNIQUE INDEX "nco:Contact_ncal:birthday_ID_ID" ON
+"nco:Contact_ncal:birthday" (ID, "ncal:birthday");
+CREATE UNIQUE INDEX "nco:Contact_nco:belongsToGroup_ID_ID" ON
+"nco:Contact_nco:belongsToGroup" (ID, "nco:belongsToGroup");
+CREATE UNIQUE INDEX "nco:Contact_nco:note_ID_ID" ON
+"nco:Contact_nco:note" (ID, "nco:note");
+CREATE UNIQUE INDEX "nco:Contact_scal:anniversary_ID_ID" ON
+"nco:Contact_scal:anniversary" (ID, "scal:anniversary");
+CREATE UNIQUE INDEX "nco:Contact_scal:birthday_ID_ID" ON
+"nco:Contact_scal:birthday" (ID, "scal:birthday");
+CREATE UNIQUE INDEX "nco:IMAccount_nco:hasIMContact_ID_ID" ON
+"nco:IMAccount_nco:hasIMContact" (ID, "nco:hasIMContact");
+CREATE UNIQUE INDEX "nco:IMAddress_nco:imCapability_ID_ID" ON
+"nco:IMAddress_nco:imCapability" (ID, "nco:imCapability");
+CREATE UNIQUE INDEX "nco:PersonContact_nco:hasAffiliation_ID_ID" ON
+"nco:PersonContact_nco:hasAffiliation" (ID, "nco:hasAffiliation");
+CREATE INDEX "nco:PersonContact_nco:nameFamily" ON "nco:PersonContact"
+("nco:nameFamily");
+CREATE INDEX "nco:PhoneNumber_nco:phoneNumber" ON "nco:PhoneNumber"
+("nco:phoneNumber");
+CREATE UNIQUE INDEX "nco:Role_nco:blogUrl_ID_ID" ON
+"nco:Role_nco:blogUrl" (ID, "nco:blogUrl");
+CREATE UNIQUE INDEX "nco:Role_nco:foafUrl_ID_ID" ON
+"nco:Role_nco:foafUrl" (ID, "nco:foafUrl");
+CREATE UNIQUE INDEX "nco:Role_nco:hasContactMedium_ID_ID" ON
+"nco:Role_nco:hasContactMedium" (ID, "nco:hasContactMedium");
+CREATE INDEX "nco:Role_nco:hasEmailAddress_ID" ON
+"nco:Role_nco:hasEmailAddress" (ID);
+CREATE UNIQUE INDEX "nco:Role_nco:hasEmailAddress_ID_ID" ON
+"nco:Role_nco:hasEmailAddress" ("nco:hasEmailAddress", ID);
+CREATE UNIQUE INDEX "nco:Role_nco:hasIMAddress_ID_ID" ON
+"nco:Role_nco:hasIMAddress" (ID, "nco:hasIMAddress");
+CREATE UNIQUE INDEX "nco:Role_nco:hasPhoneNumber_ID_ID" ON
+"nco:Role_nco:hasPhoneNumber" (ID, "nco:hasPhoneNumber");
+CREATE INDEX "nco:Role_nco:hasPostalAddress_ID" ON
+"nco:Role_nco:hasPostalAddress" (ID);
+CREATE UNIQUE INDEX "nco:Role_nco:hasPostalAddress_ID_ID" ON
+"nco:Role_nco:hasPostalAddress" ("nco:hasPostalAddress", ID);
+CREATE UNIQUE INDEX "nco:Role_nco:url_ID_ID" ON "nco:Role_nco:url"
+(ID, "nco:url");
+CREATE UNIQUE INDEX "nco:Role_nco:websiteUrl_ID_ID" ON
+"nco:Role_nco:websiteUrl" (ID, "nco:websiteUrl");
+CREATE UNIQUE INDEX
+"nfo:BookmarkFolder_nfo:containsBookmarkFolder_ID_ID" ON
+"nfo:BookmarkFolder_nfo:containsBookmarkFolder" (ID,
+"nfo:containsBookmarkFolder");
+CREATE UNIQUE INDEX "nfo:BookmarkFolder_nfo:containsBookmark_ID_ID" ON
+"nfo:BookmarkFolder_nfo:containsBookmark" (ID,
+"nfo:containsBookmark");
+CREATE INDEX "nfo:FileDataObject_nfo:fileLastModified" ON
+"nfo:FileDataObject" ("nfo:fileLastModified");
+CREATE UNIQUE INDEX "nfo:Image_nfo:depicts_ID_ID" ON
+"nfo:Image_nfo:depicts" (ID, "nfo:depicts");
+CREATE UNIQUE INDEX "nfo:Image_nfo:hasRegionOfInterest_ID_ID" ON
+"nfo:Image_nfo:hasRegionOfInterest" (ID, "nfo:hasRegionOfInterest");
+CREATE UNIQUE INDEX "nfo:MediaList_nfo:hasMediaFileListEntry_ID_ID" ON
+"nfo:MediaList_nfo:hasMediaFileListEntry" (ID,
+"nfo:hasMediaFileListEntry");
+CREATE UNIQUE INDEX "nfo:MediaList_nfo:mediaListEntry_ID_ID" ON
+"nfo:MediaList_nfo:mediaListEntry" (ID, "nfo:mediaListEntry");
+CREATE UNIQUE INDEX "nfo:Media_mtp:hidden_ID_ID" ON
+"nfo:Media_mtp:hidden" (ID, "mtp:hidden");
+CREATE UNIQUE INDEX "nfo:Media_nmm:alternativeMedia_ID_ID" ON
+"nfo:Media_nmm:alternativeMedia" (ID, "nmm:alternativeMedia");
+CREATE INDEX "nfo:Visual_nie:contentCreated" ON "nfo:Visual"
+("nie:contentCreated");
+CREATE UNIQUE INDEX "nid3:ID3Audio_nid3:leadArtist_ID_ID" ON
+"nid3:ID3Audio_nid3:leadArtist" (ID, "nid3:leadArtist");
+CREATE UNIQUE INDEX "nie:DataObject_nie:dataSource_ID_ID" ON
+"nie:DataObject_nie:dataSource" (ID, "nie:dataSource");
+CREATE UNIQUE INDEX "nie:DataObject_nie:isPartOf_ID_ID" ON
+"nie:DataObject_nie:isPartOf" (ID, "nie:isPartOf");
+CREATE INDEX "nie:DataObject_nie:url" ON "nie:DataObject" ("nie:url");
+CREATE INDEX "nie:InformationElement_mlo:location_ID" ON
+"nie:InformationElement_mlo:location" (ID);
+CREATE UNIQUE INDEX "nie:InformationElement_mlo:location_ID_ID" ON
+"nie:InformationElement_mlo:location" ("mlo:location", ID);
+CREATE UNIQUE INDEX "nie:InformationElement_nao:hasProperty_ID_ID" ON
+"nie:InformationElement_nao:hasProperty" (ID, "nao:hasProperty");
+CREATE UNIQUE INDEX "nie:InformationElement_nco:contributor_ID_ID" ON
+"nie:InformationElement_nco:contributor" (ID, "nco:contributor");
+CREATE UNIQUE INDEX "nie:InformationElement_nco:creator_ID_ID" ON
+"nie:InformationElement_nco:creator" (ID, "nco:creator");
+CREATE UNIQUE INDEX "nie:InformationElement_nie:hasLogicalPart_ID_ID"
+ON "nie:InformationElement_nie:hasLogicalPart" (ID,
+"nie:hasLogicalPart");
+CREATE UNIQUE INDEX "nie:InformationElement_nie:hasPart_ID_ID" ON
+"nie:InformationElement_nie:hasPart" (ID, "nie:hasPart");
+CREATE UNIQUE INDEX
+"nie:InformationElement_nie:informationElementDate_ID_ID" ON
+"nie:InformationElement_nie:informationElementDate" (ID,
+"nie:informationElementDate");
+CREATE UNIQUE INDEX "nie:InformationElement_nie:isLogicalPartOf_ID_ID"
+ON "nie:InformationElement_nie:isLogicalPartOf" (ID,
+"nie:isLogicalPartOf");
+CREATE UNIQUE INDEX "nie:InformationElement_nie:keyword_ID_ID" ON
+"nie:InformationElement_nie:keyword" (ID, "nie:keyword");
+CREATE UNIQUE INDEX "nie:InformationElement_nie:relatedTo_ID_ID" ON
+"nie:InformationElement_nie:relatedTo" (ID, "nie:relatedTo");
+CREATE INDEX "nie:InformationElement_slo:location" ON
+"nie:InformationElement" ("slo:location");
+CREATE INDEX "nmm:Artist_nmm:artistName" ON "nmm:Artist" ("nmm:artistName");
+CREATE INDEX "nmm:MusicAlbum_nie:title" ON "nmm:MusicAlbum" ("nie:title");
+CREATE UNIQUE INDEX "nmm:MusicAlbum_nmm:albumArtist_ID_ID" ON
+"nmm:MusicAlbum_nmm:albumArtist" (ID, "nmm:albumArtist");
+CREATE INDEX "nmm:MusicPiece_nie:title" ON "nmm:MusicPiece" ("nie:title");
+CREATE UNIQUE INDEX "nmm:MusicPiece_nmm:lyrics_ID_ID" ON
+"nmm:MusicPiece_nmm:lyrics" (ID, "nmm:lyrics");
+CREATE INDEX "nmm:MusicPiece_nmm:musicAlbum" ON "nmm:MusicPiece"
+("nmm:musicAlbum");
+CREATE INDEX "nmm:MusicPiece_nmm:performer" ON "nmm:MusicPiece"
+("nmm:performer");
+CREATE UNIQUE INDEX "nmm:RadioStation_nmm:carrier_ID_ID" ON
+"nmm:RadioStation_nmm:carrier" (ID, "nmm:carrier");
+CREATE UNIQUE INDEX "nmm:Video_mtp:scantype_ID_ID" ON
+"nmm:Video_mtp:scantype" (ID, "mtp:scantype");
+CREATE UNIQUE INDEX "nmm:Video_nmm:director_ID_ID" ON
+"nmm:Video_nmm:director" (ID, "nmm:director");
+CREATE UNIQUE INDEX "nmm:Video_nmm:leadActor_ID_ID" ON
+"nmm:Video_nmm:leadActor" (ID, "nmm:leadActor");
+CREATE UNIQUE INDEX "nmm:Video_nmm:subtitle_ID_ID" ON
+"nmm:Video_nmm:subtitle" (ID, "nmm:subtitle");
+CREATE INDEX "nmo:Call_nmo:sentDate" ON "nmo:Call" ("nmo:sentDate");
+CREATE INDEX "nmo:CommunicationChannel_nmo:hasParticipant_ID" ON
+"nmo:CommunicationChannel_nmo:hasParticipant" (ID);
+CREATE UNIQUE INDEX
+"nmo:CommunicationChannel_nmo:hasParticipant_ID_ID" ON
+"nmo:CommunicationChannel_nmo:hasParticipant" ("nmo:hasParticipant",
+ID);
+CREATE INDEX "nmo:CommunicationChannel_nmo:lastMessageDate" ON
+"nmo:CommunicationChannel" ("nmo:lastMessageDate");
+CREATE UNIQUE INDEX "nmo:Email_nmo:contentMimeType_ID_ID" ON
+"nmo:Email_nmo:contentMimeType" (ID, "nmo:contentMimeType");
+CREATE UNIQUE INDEX "nmo:Message_nmo:bcc_ID_ID" ON
+"nmo:Message_nmo:bcc" (ID, "nmo:bcc");
+CREATE UNIQUE INDEX "nmo:Message_nmo:cc_ID_ID" ON "nmo:Message_nmo:cc"
+(ID, "nmo:cc");
+CREATE INDEX "nmo:Message_nmo:communicationChannel" ON "nmo:Message"
+("nmo:communicationChannel", "nmo:receivedDate");
+CREATE INDEX "nmo:Message_nmo:conversation" ON "nmo:Message"
+("nmo:conversation");
+CREATE INDEX "nmo:Message_nmo:from" ON "nmo:Message" ("nmo:from");
+CREATE UNIQUE INDEX "nmo:Message_nmo:hasAttachment_ID_ID" ON
+"nmo:Message_nmo:hasAttachment" (ID, "nmo:hasAttachment");
+CREATE UNIQUE INDEX "nmo:Message_nmo:inReplyTo_ID_ID" ON
+"nmo:Message_nmo:inReplyTo" (ID, "nmo:inReplyTo");
+CREATE UNIQUE INDEX "nmo:Message_nmo:messageHeader_ID_ID" ON
+"nmo:Message_nmo:messageHeader" (ID, "nmo:messageHeader");
+CREATE UNIQUE INDEX "nmo:Message_nmo:recipient_ID_ID" ON
+"nmo:Message_nmo:recipient" (ID, "nmo:recipient");
+CREATE UNIQUE INDEX "nmo:Message_nmo:references_ID_ID" ON
+"nmo:Message_nmo:references" (ID, "nmo:references");
+CREATE INDEX "nmo:Message_nmo:sender" ON "nmo:Message" ("nmo:sender");
+CREATE INDEX "nmo:Message_nmo:sentDate" ON "nmo:Message" ("nmo:sentDate");
+CREATE INDEX "nmo:Message_nmo:to_ID" ON "nmo:Message_nmo:to" (ID);
+CREATE UNIQUE INDEX "nmo:Message_nmo:to_ID_ID" ON "nmo:Message_nmo:to"
+("nmo:to", ID);
+CREATE UNIQUE INDEX "nmo:MimePart_nmo:mimeHeader_ID_ID" ON
+"nmo:MimePart_nmo:mimeHeader" (ID, "nmo:mimeHeader");
+CREATE UNIQUE INDEX "nmo:Multipart_nmo:partBoundary_ID_ID" ON
+"nmo:Multipart_nmo:partBoundary" (ID, "nmo:partBoundary");
+CREATE UNIQUE INDEX
+"nmo:PhoneMessageFolder_nmo:containsPhoneMessageFolder_ID_ID" ON
+"nmo:PhoneMessageFolder_nmo:containsPhoneMessageFolder" (ID,
+"nmo:containsPhoneMessageFolder");
+CREATE UNIQUE INDEX
+"nmo:PhoneMessageFolder_nmo:containsPhoneMessage_ID_ID" ON
+"nmo:PhoneMessageFolder_nmo:containsPhoneMessage" (ID,
+"nmo:containsPhoneMessage");
+CREATE UNIQUE INDEX "nmo:PhoneMessage_nmo:toVCard_ID_ID" ON
+"nmo:PhoneMessage_nmo:toVCard" (ID, "nmo:toVCard");
+CREATE UNIQUE INDEX "rdf:Property_rdfs:subPropertyOf_ID_ID" ON
+"rdf:Property_rdfs:subPropertyOf" (ID, "rdfs:subPropertyOf");
+CREATE UNIQUE INDEX "rdfs:Class_rdfs:subClassOf_ID_ID" ON
+"rdfs:Class_rdfs:subClassOf" (ID, "rdfs:subClassOf");
+CREATE UNIQUE INDEX "rdfs:Class_tracker:domainIndex_ID_ID" ON
+"rdfs:Class_tracker:domainIndex" (ID, "tracker:domainIndex");
+CREATE UNIQUE INDEX "rdfs:Resource_dc:contributor_ID_ID" ON
+"rdfs:Resource_dc:contributor" (ID, "dc:contributor");
+CREATE UNIQUE INDEX "rdfs:Resource_dc:date_ID_ID" ON
+"rdfs:Resource_dc:date" (ID, "dc:date");
+CREATE UNIQUE INDEX "rdfs:Resource_dc:relation_ID_ID" ON
+"rdfs:Resource_dc:relation" (ID, "dc:relation");
+CREATE UNIQUE INDEX "rdfs:Resource_dc:source_ID_ID" ON
+"rdfs:Resource_dc:source" (ID, "dc:source");
+CREATE UNIQUE INDEX "rdfs:Resource_nao:deprecated_ID_ID" ON
+"rdfs:Resource_nao:deprecated" (ID, "nao:deprecated");
+CREATE INDEX "rdfs:Resource_nao:hasTag_ID" ON "rdfs:Resource_nao:hasTag" (ID);
+CREATE UNIQUE INDEX "rdfs:Resource_nao:hasTag_ID_ID" ON
+"rdfs:Resource_nao:hasTag" ("nao:hasTag", ID);
+CREATE UNIQUE INDEX "rdfs:Resource_nao:isRelated_ID_ID" ON
+"rdfs:Resource_nao:isRelated" (ID, "nao:isRelated");
+CREATE UNIQUE INDEX "rdfs:Resource_rdf:type_ID_ID" ON
+"rdfs:Resource_rdf:type" (ID, "rdf:type");
+CREATE INDEX "rdfs:Resource_tracker:added" ON "rdfs:Resource" ("tracker:added");
+CREATE UNIQUE INDEX "scal:Attendee_scal:delegated-from_ID_ID" ON
+"scal:Attendee_scal:delegated-from" (ID, "scal:delegated-from");
+CREATE UNIQUE INDEX "scal:Attendee_scal:delegated-to_ID_ID" ON
+"scal:Attendee_scal:delegated-to" (ID, "scal:delegated-to");
+CREATE UNIQUE INDEX "scal:Attendee_scal:member_ID_ID" ON
+"scal:Attendee_scal:member" (ID, "scal:member");
+CREATE UNIQUE INDEX "scal:Attendee_scal:sent-by_ID_ID" ON
+"scal:Attendee_scal:sent-by" (ID, "scal:sent-by");
+CREATE UNIQUE INDEX "scal:CalendarAlarm_scal:alarmAttendee_ID_ID" ON
+"scal:CalendarAlarm_scal:alarmAttendee" (ID, "scal:alarmAttendee");
+CREATE UNIQUE INDEX "scal:CalendarItem_scal:access_ID_ID" ON
+"scal:CalendarItem_scal:access" (ID, "scal:access");
+CREATE UNIQUE INDEX "scal:CalendarItem_scal:attachment_ID_ID" ON
+"scal:CalendarItem_scal:attachment" (ID, "scal:attachment");
+CREATE UNIQUE INDEX "scal:CalendarItem_scal:attendee_ID_ID" ON
+"scal:CalendarItem_scal:attendee" (ID, "scal:attendee");
+CREATE UNIQUE INDEX "scal:CalendarItem_scal:belongsToCalendar_ID_ID"
+ON "scal:CalendarItem_scal:belongsToCalendar" (ID,
+"scal:belongsToCalendar");
+CREATE UNIQUE INDEX "scal:CalendarItem_scal:contact_ID_ID" ON
+"scal:CalendarItem_scal:contact" (ID, "scal:contact");
+CREATE UNIQUE INDEX "scal:CalendarItem_scal:rrule_ID_ID" ON
+"scal:CalendarItem_scal:rrule" (ID, "scal:rrule");
+CREATE INDEX "slo:GeoLocation_slo:postalAddress" ON "slo:GeoLocation"
+("slo:postalAddress");
+CREATE UNIQUE INDEX "slo:Landmark_slo:belongsToCategory_ID_ID" ON
+"slo:Landmark_slo:belongsToCategory" (ID, "slo:belongsToCategory");
+CREATE UNIQUE INDEX "slo:Landmark_slo:hasContact_ID_ID" ON
+"slo:Landmark_slo:hasContact" (ID, "slo:hasContact");
+CREATE UNIQUE INDEX "slo:Route_slo:routeDetails_ID_ID" ON
+"slo:Route_slo:routeDetails" (ID, "slo:routeDetails");
+
+EXPLAIN SELECT "1_u", (SELECT "nco:fullname" FROM "nco:Contact" WHERE
+ID = "1_u") COLLATE NOCASE, (SELECT "nco:nameFamily" FROM
+"nco:PersonContact" WHERE ID = "1_u") COLLATE NOCASE, (SELECT
+"nco:nameGiven" FROM "nco:PersonContact" WHERE ID = "1_u")
+COLLATE NOCASE, (SELECT "nco:nameAdditional" FROM
+"nco:PersonContact" WHERE ID = "1_u") COLLATE NOCASE, (SELECT
+"nco:nameHonorificPrefix" FROM "nco:PersonContact" WHERE ID =
+"1_u") COLLATE NOCASE, (SELECT "nco:nameHonorificSuffix" FROM
+"nco:PersonContact" WHERE ID = "1_u") COLLATE NOCASE, (SELECT
+"nco:nickname" FROM "nco:Contact" WHERE ID = "1_u") COLLATE
+NOCASE, strftime("%s",(SELECT "nco:birthDate" FROM
+"nco:Contact" WHERE ID = "1_u")), (SELECT "nie:url" FROM
+"nie:DataObject" WHERE ID = (SELECT "nco:photo" FROM
+"nco:Contact" WHERE ID = "1_u")) COLLATE NOCASE, (SELECT
+GROUP_CONCAT("2_u"||? COLLATE NOCASE||COALESCE((SELECT
+"nco:imProtocol" FROM "nco:IMAddress" WHERE ID = "3_u") COLLATE
+NOCASE, ? COLLATE NOCASE)||? COLLATE NOCASE||COALESCE((SELECT
+"nco:imID" FROM "nco:IMAddress" WHERE ID = "3_u") COLLATE
+NOCASE, ? COLLATE NOCASE)||? COLLATE NOCASE||COALESCE((SELECT
+"nco:imNickname" FROM "nco:IMAddress" WHERE ID = "3_u") COLLATE
+NOCASE, ? COLLATE NOCASE), '\n') FROM (SELECT
+"nco:PersonContact_nco:hasAffiliation2"."nco:hasAffiliation" AS
+"2_u", "nco:Role_nco:hasIMAddress3"."nco:hasIMAddress" AS
+"3_u" FROM "nco:PersonContact_nco:hasAffiliation" AS
+"nco:PersonContact_nco:hasAffiliation2",
+"nco:Role_nco:hasIMAddress" AS "nco:Role_nco:hasIMAddress3" WHERE
+"1_u" = "nco:PersonContact_nco:hasAffiliation2"."ID" AND
+"nco:PersonContact_nco:hasAffiliation2"."nco:hasAffiliation" =
+"nco:Role_nco:hasIMAddress3"."ID")), (SELECT
+GROUP_CONCAT("2_u"||? COLLATE NOCASE||(SELECT "nco:phoneNumber"
+FROM "nco:PhoneNumber" WHERE ID = "4_u") COLLATE NOCASE, '\n')
+FROM (SELECT "nco:PersonContact_nco:hasAffiliation4"."nco:hasAffiliation"
+AS "2_u", "nco:Role_nco:hasPhoneNumber5"."nco:hasPhoneNumber" AS
+"4_u" FROM "nco:PersonContact_nco:hasAffiliation" AS
+"nco:PersonContact_nco:hasAffiliation4",
+"nco:Role_nco:hasPhoneNumber" AS "nco:Role_nco:hasPhoneNumber5"
+WHERE "1_u" = "nco:PersonContact_nco:hasAffiliation4"."ID" AND
+"nco:PersonContact_nco:hasAffiliation4"."nco:hasAffiliation" =
+"nco:Role_nco:hasPhoneNumber5"."ID")), (SELECT
+GROUP_CONCAT("2_u"||? COLLATE NOCASE||(SELECT "nco:emailAddress"
+FROM "nco:EmailAddress" WHERE ID = "5_u") COLLATE NOCASE, ',')
+FROM (SELECT "nco:PersonContact_nco:hasAffiliation6"."nco:hasAffiliation"
+AS "2_u", "nco:Role_nco:hasEmailAddress7"."nco:hasEmailAddress"
+AS "5_u" FROM "nco:PersonContact_nco:hasAffiliation" AS
+"nco:PersonContact_nco:hasAffiliation6",
+"nco:Role_nco:hasEmailAddress" AS "nco:Role_nco:hasEmailAddress7"
+WHERE "1_u" = "nco:PersonContact_nco:hasAffiliation6"."ID" AND
+"nco:PersonContact_nco:hasAffiliation6"."nco:hasAffiliation" =
+"nco:Role_nco:hasEmailAddress7"."ID")), (SELECT
+GROUP_CONCAT("2_u"||? COLLATE NOCASE||COALESCE((SELECT
+GROUP_CONCAT((SELECT Uri FROM Resource WHERE ID =
+"nco:blogUrl"),',') FROM "nco:Role_nco:blogUrl" WHERE ID =
+"2_u"), ? COLLATE NOCASE)||? COLLATE NOCASE||COALESCE((SELECT
+GROUP_CONCAT((SELECT Uri FROM Resource WHERE ID =
+"nco:websiteUrl"),',') FROM "nco:Role_nco:websiteUrl" WHERE ID =
+"2_u"), ? COLLATE NOCASE)||? COLLATE NOCASE||COALESCE((SELECT
+GROUP_CONCAT((SELECT Uri FROM Resource WHERE ID = "nco:url"),',')
+FROM "nco:Role_nco:url" WHERE ID = "2_u"), ? COLLATE NOCASE),
+'\n') FROM (SELECT
+"nco:PersonContact_nco:hasAffiliation8"."nco:hasAffiliation" AS
+"2_u" FROM "nco:PersonContact_nco:hasAffiliation" AS
+"nco:PersonContact_nco:hasAffiliation8" WHERE "1_u" =
+"nco:PersonContact_nco:hasAffiliation8"."ID")), (SELECT
+GROUP_CONCAT("6_u", ',') FROM (SELECT
+"rdfs:Resource_nao:hasTag9"."nao:hasTag" AS "6_u" FROM
+"rdfs:Resource_nao:hasTag" AS "rdfs:Resource_nao:hasTag9" WHERE
+"1_u" = "rdfs:Resource_nao:hasTag9"."ID")), (SELECT Uri FROM
+Resource WHERE ID = "1_u"), (SELECT GROUP_CONCAT("2_u"||? COLLATE
+NOCASE||COALESCE((SELECT "nco:role" FROM "nco:Affiliation" WHERE
+ID = "2_u") COLLATE NOCASE, ? COLLATE NOCASE)||? COLLATE
+NOCASE||COALESCE((SELECT "nco:department" FROM "nco:Affiliation"
+WHERE ID = "2_u") COLLATE NOCASE, ? COLLATE NOCASE)||? COLLATE
+NOCASE||COALESCE((SELECT GROUP_CONCAT("nco:title",',') FROM
+"nco:Affiliation_nco:title" WHERE ID = "2_u"), ? COLLATE NOCASE),
+'\n') FROM (SELECT
+"nco:PersonContact_nco:hasAffiliation10"."nco:hasAffiliation" AS
+"2_u" FROM "nco:PersonContact_nco:hasAffiliation" AS
+"nco:PersonContact_nco:hasAffiliation10" WHERE "1_u" =
+"nco:PersonContact_nco:hasAffiliation10"."ID")), (SELECT
+GROUP_CONCAT("nco:note",',') FROM "nco:Contact_nco:note" WHERE ID
+= "1_u"), (SELECT "nco:gender" FROM "nco:PersonContact" WHERE ID
+= "1_u"), (SELECT GROUP_CONCAT("2_u"||? COLLATE
+NOCASE||COALESCE((SELECT "nco:pobox" FROM "nco:PostalAddress"
+WHERE ID = "7_u") COLLATE NOCASE, ? COLLATE NOCASE)||? COLLATE
+NOCASE||COALESCE((SELECT "nco:district" FROM "nco:PostalAddress"
+WHERE ID = "7_u") COLLATE NOCASE, ? COLLATE NOCASE)||? COLLATE
+NOCASE||COALESCE((SELECT "nco:county" FROM "nco:PostalAddress"
+WHERE ID = "7_u") COLLATE NOCASE, ? COLLATE NOCASE)||? COLLATE
+NOCASE||COALESCE((SELECT "nco:locality" FROM "nco:PostalAddress"
+WHERE ID = "7_u") COLLATE NOCASE, ? COLLATE NOCASE)||? COLLATE
+NOCASE||COALESCE((SELECT "nco:postalcode" FROM
+"nco:PostalAddress" WHERE ID = "7_u") COLLATE NOCASE, ? COLLATE
+NOCASE)||? COLLATE NOCASE||COALESCE((SELECT "nco:streetAddress"
+FROM "nco:PostalAddress" WHERE ID = "7_u") COLLATE NOCASE, ?
+COLLATE NOCASE)||? COLLATE NOCASE||COALESCE((SELECT Uri FROM
+Resource WHERE ID = (SELECT "nco:addressLocation" FROM
+"nco:PostalAddress" WHERE ID = "7_u")), ? COLLATE NOCASE)||?
+COLLATE NOCASE||COALESCE((SELECT "nco:extendedAddress" FROM
+"nco:PostalAddress" WHERE ID = "7_u") COLLATE NOCASE, ? COLLATE
+NOCASE)||? COLLATE NOCASE||COALESCE((SELECT "nco:country" FROM
+"nco:PostalAddress" WHERE ID = "7_u") COLLATE NOCASE, ? COLLATE
+NOCASE)||? COLLATE NOCASE||COALESCE((SELECT "nco:region" FROM
+"nco:PostalAddress" WHERE ID = "7_u") COLLATE NOCASE, ? COLLATE
+NOCASE), '\n') FROM (SELECT
+"nco:PersonContact_nco:hasAffiliation11"."nco:hasAffiliation" AS
+"2_u", "nco:Role_nco:hasPostalAddress12"."nco:hasPostalAddress"
+AS "7_u" FROM "nco:PersonContact_nco:hasAffiliation" AS
+"nco:PersonContact_nco:hasAffiliation11",
+"nco:Role_nco:hasPostalAddress" AS
+"nco:Role_nco:hasPostalAddress12" WHERE "1_u" =
+"nco:PersonContact_nco:hasAffiliation11"."ID" AND
+"nco:PersonContact_nco:hasAffiliation11"."nco:hasAffiliation" =
+"nco:Role_nco:hasPostalAddress12"."ID")), (SELECT
+GROUP_CONCAT("10_u" COLLATE NOCASE, ',') FROM (SELECT
+"nie:InformationElement_nao:hasProperty13"."nao:hasProperty" AS
+"8_u", "nao:Property14"."nao:propertyName" AS "9_u",
+"nao:Property14"."nao:propertyValue" AS "10_u" FROM
+"nie:InformationElement_nao:hasProperty" AS
+"nie:InformationElement_nao:hasProperty13", "nao:Property" AS
+"nao:Property14" WHERE "1_u" =
+"nie:InformationElement_nao:hasProperty13"."ID" AND
+"nie:InformationElement_nao:hasProperty13"."nao:hasProperty" =
+"nao:Property14"."ID" AND "9_u" IS NOT NULL AND "10_u" IS NOT
+NULL AND ("9_u" COLLATE NOCASE = ? COLLATE NOCASE))) FROM (SELECT
+"nco:PersonContact1"."ID" AS "1_u" FROM "nco:PersonContact" AS
+"nco:PersonContact1") ORDER BY "1_u";
+  }
+} {/.* Goto .*/}
+
+# Crash reported by OSS-FUZZ on 2016-11-10
+do_catchsql_test fuzz-oss1-detach {
+  DETACH x IS #1;
+} {1 {near "#1": syntax error}}
+
+finish_test
diff --git a/test/fuzz.test b/test/fuzz.test
new file mode 100644
index 0000000000000000000000000000000000000000..83dc79bc7825ce74950f8cace07fe3653a84925f
--- /dev/null
+++ b/test/fuzz.test
@@ -0,0 +1,379 @@
+# 2007 May 10
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is generating semi-random strings of SQL
+# (a.k.a. "fuzz") and sending it into the parser to try to 
+# generate errors.
+#
+# The tests in this file are really about testing fuzzily generated
+# SQL parse-trees. The majority of the fuzzily generated SQL is 
+# valid as far as the parser is concerned. 
+#
+# The most complicated trees are for SELECT statements.
+#
+# $Id: fuzz.test,v 1.19 2009/04/28 11:10:39 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+set ::REPEATS 5000
+
+# If running quick.test, don't do so many iterations.
+if {[info exists ::G(isquick)]} {
+  if {$::G(isquick)} { set ::REPEATS 20 }
+}
+
+source $testdir/fuzz_common.tcl
+expr srand(0)
+
+#----------------------------------------------------------------
+# These tests caused errors that were first caught by the tests
+# in this file. They are still here.
+do_test fuzz-1.1 {
+  execsql {
+    SELECT 'abc' LIKE X'ABCD';
+  }
+} {0}
+do_test fuzz-1.2 {
+  execsql {
+    SELECT 'abc' LIKE zeroblob(10);
+  }
+} {0}
+do_test fuzz-1.3 {
+  execsql {
+    SELECT zeroblob(10) LIKE 'abc';
+  }
+} {0}
+do_test fuzz-1.4 {
+  execsql {
+    SELECT (- -21) % NOT (456 LIKE zeroblob(10));
+  }
+} {0}
+do_test fuzz-1.5 {
+  execsql {
+    SELECT (SELECT (
+        SELECT (SELECT -2147483648) FROM (SELECT 1) ORDER BY 1
+    ))
+  }
+} {-2147483648}
+do_test fuzz-1.6 {
+  execsql {
+    SELECT 'abc', zeroblob(1) FROM (SELECT 1) ORDER BY 1
+  }
+} [execsql {SELECT 'abc', zeroblob(1)}]
+
+do_test fuzz-1.7 {
+  execsql {
+    SELECT ( SELECT zeroblob(1000) FROM ( 
+      SELECT * FROM (SELECT 'first') ORDER BY NOT 'in') 
+    )
+  }
+} [execsql {SELECT zeroblob(1000)}]
+
+do_test fuzz-1.8 {
+  # Problems with opcode OP_ToText (did not account for MEM_Zero).
+  # Also MemExpandBlob() was marking expanded blobs as nul-terminated.
+  # They are not.
+  execsql {
+    SELECT CAST(zeroblob(1000) AS text);
+  }
+} {{}}
+
+do_test fuzz-1.9 {
+  # This was causing a NULL pointer dereference of Expr.pList.
+  execsql {
+    SELECT 1 FROM (SELECT * FROM sqlite_master WHERE random())
+  }
+} {}
+
+do_test fuzz-1.10 {
+  # Bug in calculation of Parse.ckOffset causing an assert() 
+  # to fail. Probably harmless.
+  execsql {
+    SELECT coalesce(1, substr( 1, 2, length('in' IN (SELECT 1))))
+  }
+} {1}
+
+do_test fuzz-1.11 {
+  # The literals (A, B, C, D) are not important, they are just used
+  # to make the EXPLAIN output easier to read.
+  #
+  # The problem here is that the EXISTS(...) expression leaves an
+  # extra value on the VDBE stack. This is confusing the parent and
+  # leads to an assert() failure when OP_Insert encounters an integer
+  # when it expects a record blob.
+  #
+  # Update: Any query with (LIMIT 0) was leaking stack.
+  #
+  execsql {
+    SELECT 'A' FROM (SELECT 'B') ORDER BY EXISTS (
+      SELECT 'C' FROM (SELECT 'D' LIMIT 0)
+    )
+  }
+} {A}
+
+do_test fuzz-1.12.1 {
+  # Create a table with a single row.
+  execsql {
+    CREATE TABLE abc(b);
+    INSERT INTO abc VALUES('ABCDE');
+  }
+
+  # The following query was crashing. The later subquery (in the FROM)
+  # clause was flattened into the parent, but the code was not repairng
+  # the "b" reference in the other sub-query. When the query was executed,
+  # that "b" refered to a non-existant vdbe table-cursor.
+  #
+  execsql {
+    SELECT 1 IN ( SELECT b UNION SELECT 1 ) FROM (SELECT b FROM abc);
+  }
+} {1}
+do_test fuzz-1.12.2 {
+  # Clean up after the previous query.
+  execsql {
+    DROP TABLE abc;
+  }
+} {}
+
+
+do_test fuzz-1.13 {
+  # The problem here was that when there were more expressions in
+  # the ORDER BY list than the result-set list. The temporary b-tree
+  # used for sorting was being misconfigured in this case.
+  #
+  execsql {
+    SELECT 'abcd' UNION SELECT 'efgh' ORDER BY 1 ASC, 1 ASC;
+  }
+} {abcd efgh}
+
+do_test fuzz-1.14.1 {
+  execsql {
+    CREATE TABLE abc(a, b, c);
+    INSERT INTO abc VALUES(123, 456, 789);
+  }
+ 
+  # The [a] reference in the sub-select was causing a problem. Because
+  # the internal walkSelectExpr() function was not considering compound
+  # SELECT operators.
+  execsql {
+    SELECT 1 FROM abc
+    GROUP BY c HAVING EXISTS (SELECT a UNION SELECT 123);
+  }
+} {1}
+do_test fuzz-1.14.2 {
+  execsql {
+    DROP TABLE abc;
+  }
+} {}
+
+# Making sure previously discovered errors have been fixed.
+#
+do_test fuzz-1.15 {
+  execsql {
+    SELECT hex(CAST(zeroblob(1000) AS integer))
+  }
+} {30}
+
+do_test fuzz-1.16.1 {
+  execsql {
+    CREATE TABLE abc(a, b, c);
+    CREATE TABLE def(a, b, c);
+    CREATE TABLE ghi(a, b, c);
+  }
+} {}
+do_test fuzz-1.16.2 {
+  catchsql {
+    SELECT DISTINCT EXISTS(
+       SELECT 1
+       FROM (
+         SELECT C FROM (SELECT 1)
+       )
+       WHERE (SELECT c)
+    )
+    FROM abc
+  }
+} {0 {}}
+do_test fuzz-1.16.3 {
+  catchsql {
+    SELECT DISTINCT substr(-456 ISNULL,zeroblob(1000), EXISTS(
+         SELECT DISTINCT EXISTS(
+           SELECT DISTINCT b FROM abc
+           ORDER BY EXISTS (
+             SELECT DISTINCT 2147483647 UNION ALL SELECT -2147483648
+           ) ASC
+         )
+         FROM (
+           SELECT c, c FROM (
+             SELECT 456, 'injection' ORDER BY 56.1 ASC, -56.1 DESC
+           )
+         )
+         GROUP BY (SELECT ALL (SELECT DISTINCT 'hardware')) 
+         HAVING (
+           SELECT DISTINCT c
+           FROM (
+             SELECT ALL -2147483648, 'experiments'
+             ORDER BY -56.1 ASC, -56.1 DESC
+           )
+           GROUP BY (SELECT DISTINCT 456) IN 
+                   (SELECT DISTINCT 'injection') NOT IN (SELECT ALL -456)
+           HAVING EXISTS (
+             SELECT ALL 'injection'
+           )
+         )
+         UNION ALL
+         SELECT a IN (
+           SELECT -2147483647
+           UNION ALL
+           SELECT ALL 'injection'
+         )
+         FROM sqlite_master
+       ) -- end EXISTS
+    ) /* end SUBSTR() */, c NOTNULL ISNULL
+    FROM abc
+    ORDER BY CAST(-56.1 AS blob) ASC
+  }
+} {0 {}}
+do_test fuzz-1.16.4 {
+  execsql {
+    DROP TABLE abc; DROP TABLE def; DROP TABLE ghi;
+  }
+} {}
+
+do_test fuzz-1.17 {
+  catchsql {
+    SELECT 'hardware', 56.1 NOTNULL, random()&0
+    FROM (
+       SELECT ALL lower(~ EXISTS (
+           SELECT 1 NOT IN (SELECT ALL 1)
+       )), CAST(456 AS integer), -2147483647
+       FROM (
+         SELECT DISTINCT -456, CAST(1 AS integer) ISNULL
+         FROM (SELECT ALL 2147483647, typeof(2147483649))
+       )
+    )
+    GROUP BY CAST(CAST('experiments' AS blob) AS blob)
+    HAVING random()
+  }
+} {0 {hardware 1 0}}
+
+do_test fuzz-1.18 {
+  catchsql {
+     SELECT -2147483649 << upper('fault' NOT IN (
+        SELECT ALL (
+           SELECT ALL -1
+           ORDER BY -2147483649
+           LIMIT (
+              SELECT ALL (
+                 SELECT 0 EXCEPT SELECT DISTINCT 'experiments' ORDER BY 1 ASC
+              )
+           )
+           OFFSET EXISTS (
+              SELECT ALL 
+                  (SELECT ALL -2147483648) NOT IN (
+                     SELECT ALL 123456789.1234567899
+                  ) IN (SELECT 2147483649) 
+              FROM sqlite_master
+           ) NOT IN (SELECT ALL 'The')
+        )
+     ))
+  }
+} {0 {{}}}
+
+# At one point the following INSERT statement caused an assert() to fail.
+# 
+do_test fuzz-1.19 {
+  execsql { CREATE TABLE t1(a) }
+  catchsql {
+    INSERT INTO t1 VALUES( 
+      CASE WHEN NULL THEN NULL ELSE ( SELECT 0 ORDER BY 456 ) END 
+    )
+  }
+} {1 {1st ORDER BY term out of range - should be between 1 and 1}}
+do_test fuzz-1.20 {
+  execsql { DROP TABLE t1 }
+} {}
+
+#----------------------------------------------------------------
+# Test some fuzzily generated expressions.
+#
+do_fuzzy_test fuzz-2 -template  { SELECT [Expr] }
+
+do_test fuzz-3.1 {
+  execsql {
+    CREATE TABLE abc(a, b, c);
+    CREATE TABLE def(a, b, c);
+    CREATE TABLE ghi(a, b, c);
+  }
+} {}
+set ::TableList  [list abc def ghi]
+
+#----------------------------------------------------------------
+# Test some fuzzily generated SELECT statements.
+#
+do_fuzzy_test fuzz-3.2 -template  {[Select]}
+
+#----------------------------------------------------------------
+# Insert a small amount of data into the database and then run 
+# some more generated SELECT statements.
+#
+do_test fuzz-4.1 {
+  execsql {
+    INSERT INTO abc VALUES(1, 2, 3);
+    INSERT INTO abc VALUES(4, 5, 6);
+    INSERT INTO abc VALUES(7, 8, 9);
+    INSERT INTO def VALUES(1, 2, 3);
+    INSERT INTO def VALUES(4, 5, 6);
+    INSERT INTO def VALUES(7, 8, 9);
+    INSERT INTO ghi VALUES(1, 2, 3);
+    INSERT INTO ghi VALUES(4, 5, 6);
+    INSERT INTO ghi VALUES(7, 8, 9);
+    CREATE INDEX abc_i ON abc(a, b, c);
+    CREATE INDEX def_i ON def(c, a, b);
+    CREATE INDEX ghi_i ON ghi(b, c, a);
+  }
+} {}
+do_fuzzy_test fuzz-4.2 -template {[Select]}
+
+#----------------------------------------------------------------
+# Test some fuzzy INSERT statements:
+#
+do_test         fuzz-5.1 {execsql BEGIN} {}
+do_fuzzy_test   fuzz-5.2 -template  {[Insert]} -errorlist table
+integrity_check fuzz-5.2.integrity
+do_test         fuzz-5.3 {execsql COMMIT} {}
+integrity_check fuzz-5.4.integrity
+
+#----------------------------------------------------------------
+# Now that there is data in the database, run some more SELECT 
+# statements
+#
+set ::ColumnList [list a b c]
+set E {{no such col} {ambiguous column name}}
+do_fuzzy_test fuzz-6.1 -template {[Select]} -errorlist $E
+
+#----------------------------------------------------------------
+# Run some SELECTs, INSERTs, UPDATEs and DELETEs in a transaction.
+#
+set E {{no such col} {ambiguous column name} {table}}
+do_test         fuzz-7.1 {execsql BEGIN} {}
+do_fuzzy_test   fuzz-7.2 -template {[Statement]} -errorlist $E
+integrity_check fuzz-7.3.integrity
+do_test         fuzz-7.4 {execsql COMMIT} {}
+integrity_check fuzz-7.5.integrity
+
+#----------------------------------------------------------------
+# Many CREATE and DROP TABLE statements:
+#
+set E [list table view duplicate {no such col} {ambiguous column name} {use DROP}]
+do_fuzzy_test fuzz-8.1 -template {[CreateOrDropTableOrView]} -errorlist $E
+
+close $::log
+finish_test
diff --git a/test/fuzz2.test b/test/fuzz2.test
new file mode 100644
index 0000000000000000000000000000000000000000..51dfce140b00d360e353c38483049e58605520ab
--- /dev/null
+++ b/test/fuzz2.test
@@ -0,0 +1,139 @@
+# 2007 May 10
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. 
+#
+# This file checks error recovery from malformed SQL strings.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+
+proc fuzzcatch {sql} {
+  return [lindex [catchsql $sql] 0]
+}
+
+do_test fuzz2-1.1 {
+  fuzzcatch {SELECT ALL "AAAAAA" . * GROUP BY LIMIT round(1), #12}
+} {1}
+do_test fuzz2-2.0 {
+  fuzzcatch {SELECT + #100}
+} {1}
+do_test fuzz2-2.1 {
+  fuzzcatch {SELECT 1 WHERE ( #61 NOT MATCH ROUND( 1 ) )}
+} {1}
+do_test fuzz2-2.2 {
+  fuzzcatch {SELECT 1 LIMIT NOT #59 COLLATE AAAAAA NOT IN 
+    ( "AAAAAA" NOTNULL <= x'414141414141' IS NULL , ( ROUND ( 1.0 ) ) )}
+} {1}
+do_test fuzz2-2.3 {
+  fuzzcatch {INSERT OR REPLACE INTO AAAAAA . "AAAAAA" ( "AAAAAA" ) SELECT DISTINCT * , ( SELECT #252 IN ( SELECT DISTINCT AAAAAA . * ) )}
+} {1}
+do_test fuzz2-2.4 {
+  fuzzcatch {SELECT 1 LIMIT NOT #59 COLLATE AAAAAA NOT IN round(1.0)}
+} {1}
+do_test fuzz2-2.5 {
+  fuzzcatch {SELECT( #239 )}
+} {1}
+do_test fuzz2-2.6 {
+  fuzzcatch {DELETE FROM AAAAAA WHERE #65 NOT NULL}
+} {1}
+do_test fuzz2-2.7 {
+  fuzzcatch {ATTACH ROUND( 1.0 ) in  AAAAAA . "AAAAAA" AS #122 ISNULL}
+} {1}
+do_test fuzz2-2.8 {
+  fuzzcatch {SELECT 1 LIMIT  #122 ISNULL}
+} {1}
+do_test fuzz2-2.9 {
+  fuzzcatch {CREATE VIEW AAAAAA . "AAAAAA" AS SELECT DISTINCT #162 IS NULL "AAAAAA"}
+} {1}
+do_test fuzz2-2.10 {
+  fuzzcatch {DELETE FROM AAAAAA WHERE #202 IS NOT NULL ISNULL}
+} {1}
+do_test fuzz2-2.11 {
+  fuzzcatch {UPDATE OR IGNORE "AAAAAA" . "AAAAAA" SET "AAAAAA" = NOT #96}
+} {1}
+do_test fuzz2-2.12 {
+  fuzzcatch {SELECT - #196}
+} {1}
+
+ifcapable {trigger} {  # Only do the following tests if triggers are enabled
+
+do_test fuzz2-3.0 {
+  fuzzcatch {CREATE TRIGGER "AAAAAA" . "AAAAAA" AFTER UPDATE OF "AAAAAA" , "AAAAAA" ON "AAAAAA" . "AAAAAA" FOR EACH ROW BEGIN UPDATE AAAAAA SET "AAAAAA" = #162;  END}
+} {1}
+do_test fuzz2-3.1 {
+  fuzzcatch {CREATE TRIGGER IF NOT EXISTS "AAAAAA" UPDATE ON "AAAAAA" . AAAAAA FOR EACH ROW BEGIN DELETE FROM "AAAAAA" ; INSERT INTO AAAAAA ( "AAAAAA" ) SELECT DISTINCT "AAAAAA" "AAAAAA" , #167 AAAAAA , "AAAAAA" . * ORDER BY "AAAAAA" ASC , x'414141414141' BETWEEN RAISE ( FAIL , "AAAAAA" ) AND AAAAAA ( * ) NOT NULL DESC LIMIT AAAAAA ; REPLACE INTO AAAAAA ( AAAAAA ) VALUES ( AAAAAA ( * ) ) ; END}
+} {1}
+do_test fuzz2-3.2 {
+  fuzzcatch {CREATE TEMP TRIGGER IF NOT EXISTS AAAAAA . "AAAAAA" BEFORE UPDATE OF "AAAAAA" ON AAAAAA . "AAAAAA" BEGIN SELECT ALL * , #175 "AAAAAA" FROM "AAAAAA" . AAAAAA;  END}
+} {1}
+
+} ;# End of ifcapable {trigger}
+
+do_test fuzz2-4.0 {
+  fuzzcatch {ATTACH DATABASE #168 AS whatever}
+} {1}
+do_test fuzz2-4.1 {
+  fuzzcatch {DETACH #133}
+} {1}
+do_test fuzz2-5.0 {
+  fuzzcatch {SELECT 1 LIMIT ( SELECT DISTINCT * , AAAAAA , * , AAAAAA , "AAAAAA" . * FROM "AAAAAA" ON ROUND( 1 ) COLLATE AAAAAA OR "AAAAAA" USING ( AAAAAA , "AAAAAA" ) WHERE ROUND( 1 ) GROUP BY ORDER BY #84 ASC , #44 DESC , ( SELECT "AAAAAA" . * , "AAAAAA" . * FROM , ( ) "AAAAAA" USING ( )}
+} {1}
+do_test fuzz2-5.1 {
+  fuzzcatch {SELECT 1 WHERE 1 == AAAAAA ( * ) BETWEEN + - ~ + "AAAAAA" . AAAAAA | RAISE ( IGNORE ) COLLATE AAAAAA NOT IN ( SELECT DISTINCT "AAAAAA" . * , * , * WHERE ( SELECT ALL AAAAAA AS "AAAAAA" HAVING CAST ( "AAAAAA" . "AAAAAA" . "AAAAAA" AS AAAAAA ) ORDER BY , , IS NULL ASC , ~ AND DESC LIMIT ( ( "AAAAAA" ) NOT BETWEEN ( ) NOT IN ( ) AND AAAAAA ( ) IS NOT NULL ) OFFSET AAAAAA ( ALL , , ) ) GROUP BY ORDER BY "AAAAAA" . AAAAAA ASC , NULL IN ( SELECT UNION ALL SELECT ALL WHERE HAVING ORDER BY LIMIT UNION SELECT DISTINCT FROM ( ) WHERE + HAVING >> ORDER BY LIMIT . . , "AAAAAA" ) , CAST ( ~ "AAAAAA" . AAAAAA AS "AAAAAA" AAAAAA "AAAAAA" ( + 4294967295 , - 4294967296.0 ) ) ASC LIMIT AAAAAA INTERSECT SELECT ALL * GROUP BY , AAAAAA ( DISTINCT , ) != #241 NOT IN ( , , ) , , CTIME_KW HAVING AAAAAA ORDER BY #103 DESC , #81 ASC LIMIT AAAAAA OFFSET ~ AAAAAA ( ALL AAAAAA . AAAAAA >= AAAAAA . "AAAAAA" . "AAAAAA" ) ) NOTNULL NOT NULL}
+} {1}
+do_test fuzz2-5.2 {
+  fuzzcatch {SELECT 1 WHERE 1 == AAAAAA ( * ) BETWEEN + - ~ + "AAAAAA" . AAAAAA | RAISE ( IGNORE ) COLLATE AAAAAA NOT IN ( SELECT DISTINCT "AAAAAA" . * , * , * WHERE ( SELECT ALL AAAAAA AS "AAAAAA" HAVING CAST ( "AAAAAA" . "AAAAAA" . "AAAAAA" AS AAAAAA ) ORDER BY , , IS NULL ASC , ~ AND DESC LIMIT ( ( "AAAAAA" ) NOT BETWEEN ( ) NOT IN ( ) AND AAAAAA ( ) IS NOT NULL ) OFFSET AAAAAA ( ALL , , ) ) GROUP BY ORDER BY "AAAAAA" . AAAAAA ASC , NULL IN ( SELECT UNION ALL SELECT ALL WHERE HAVING ORDER BY LIMIT UNION SELECT DISTINCT FROM ( ) WHERE + HAVING >> ORDER BY LIMIT . . , "AAAAAA" ) , CAST ( ~ "AAAAAA" . AAAAAA AS "AAAAAA" AAAAAA "AAAAAA" ( + 4294967295 , - 4294967296.0 ) ) ASC LIMIT AAAAAA INTERSECT SELECT ALL * GROUP BY , AAAAAA ( DISTINCT , ) != #241 NOT IN ( , , ) , , CTIME_KW HAVING AAAAAA ORDER BY #103 DESC , #81 ASC LIMIT AAAAAA OFFSET ~ AAAAAA ( ALL AAAAAA . AAAAAA >= AAAAAA . "AAAAAA" . "AAAAAA" ) ) NOTNULL NOT NULL}
+} {1}
+do_test fuzz2-5.3 {
+  fuzzcatch {UPDATE "AAAAAA" SET "AAAAAA" = - EXISTS ( SELECT DISTINCT * , * ORDER BY #202 ASC , #147 , ~ AAAAAA . "AAAAAA" ASC LIMIT AAAAAA . "AAAAAA" , RAISE ( ABORT , AAAAAA ) UNION ALL SELECT DISTINCT AAAAAA . * , * FROM ( SELECT DISTINCT}
+} {1}
+do_test fuzz2-5.4 {
+  fuzzcatch {REPLACE INTO AAAAAA SELECT DISTINCT "AAAAAA" . * WHERE AAAAAA ( AAAAAA ( ) ) GROUP BY AAAAAA . AAAAAA . "AAAAAA" IN "AAAAAA" | AAAAAA ( ALL , ) ORDER BY #238, #92 DESC LIMIT 0 OFFSET - RAISE ( IGNORE ) NOT NULL > RAISE ( IGNORE ) IS NULL}
+} {1}
+do_test fuzz2-5.5 {
+  fuzzcatch {SELECT ALL * GROUP BY EXISTS ( SELECT "AAAAAA" . * , AAAAAA ( * ) AS AAAAAA FROM "AAAAAA" . "AAAAAA" AS "AAAAAA" USING ( AAAAAA , "AAAAAA" , "AAAAAA" ) WHERE AAAAAA ( DISTINCT ) - RAISE ( FAIL , "AAAAAA" ) HAVING "AAAAAA" . "AAAAAA" . AAAAAA ORDER BY #182 , #55 ) BETWEEN EXISTS ( SELECT ALL * FROM ( ( }
+} {1}
+
+# Test cases discovered by Michal Zalewski on 2015-01-03 and reported on the
+# sqlite-users mailing list.  All of these cases cause segfaults in 
+# SQLite 3.8.7.4 and earlier.
+#
+do_test fuzz2-6.1 {
+  catchsql {SELECT n()AND+#0;}
+} {1 {near "#0": syntax error}}
+do_test fuzz2-6.2 {
+  catchsql {SELECT strftime()}
+} {0 {{}}}
+do_test fuzz2-6.3 {
+  catchsql {DETACH(SELECT group_concat(q));}
+} {1 {no such column: q}}
+do_test fuzz2-6.4a {
+  db eval {DROP TABLE IF EXISTS t0; CREATE TABLE t0(t);}
+  catchsql {INSERT INTO t0 SELECT strftime();}
+} {0 {}}
+do_test fuzz2-6.4b {
+  db eval {SELECT quote(t) FROM t0} 
+} {NULL}
+
+# Another test case discovered by Michal Zalewski, this on on 2015-01-22.
+# Ticket 32b63d542433ca6757cd695aca42addf8ed67aa6
+#
+do_test fuzz2-7.1 {
+  catchsql {select e.*,0 from(s,(L))e;}
+} {1 {no such table: s}}
+do_test fuzz2-7.2 {
+  catchsql {SELECT c.* FROM (a,b) AS c}
+} {1 {no such table: a}}
+
+
+finish_test
diff --git a/test/fuzz3.test b/test/fuzz3.test
new file mode 100644
index 0000000000000000000000000000000000000000..8ac1f4d58f1d49d67dd739f9392bdae11605b9d5
--- /dev/null
+++ b/test/fuzz3.test
@@ -0,0 +1,175 @@
+# 2007 May 10
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The focus
+# of this file is checking the libraries response to subtly corrupting
+# the database file by changing the values of pseudo-randomly selected
+# bytes.
+#
+# $Id: fuzz3.test,v 1.3 2009/01/05 17:19:03 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# These tests deal with corrupt database files
+#
+database_may_be_corrupt
+test_set_config_pagecache 0 0
+
+
+expr srand(123)
+
+proc rstring {n} {
+  set str s
+  while {[string length $str] < $n} {
+    append str [expr rand()]
+  }
+  return [string range $str 0 $n]
+}
+
+# Return a randomly generated SQL literal.
+#
+proc rvalue {} {
+  switch -- [expr int(rand()*5)] {
+    0 { # SQL NULL value.
+      return NULL 
+    }
+    1 { # Integer value.
+      return [expr int(rand()*1024)] 
+    }
+    2 { # Real value.
+      return [expr rand()] 
+    }
+    3 { # String value.
+      set n [expr int(rand()*2500)]
+      return "'[rstring $n]'"
+    }
+    4 { # Blob value.
+      set n [expr int(rand()*2500)]
+      return "CAST('[rstring $n]' AS BLOB)"
+    }
+  }
+}
+
+proc db_checksum {} {
+  set    cksum [execsql { SELECT md5sum(a, b, c) FROM t1 }]
+  append cksum [execsql { SELECT md5sum(d, e, f) FROM t2 }]
+  set cksum
+}
+
+# Modify a single byte in the file 'test.db' using tcl IO commands. The
+# argument value, which must be an integer, determines both the offset of
+# the byte that is modified, and the value that it is set to. The lower
+# 8 bits of iMod determine the new byte value. The offset of the byte
+# modified is the value of ($iMod >> 8).
+#
+# The return value is the iMod value required to restore the file
+# to its original state. The command:
+#
+#   modify_database [modify_database $x]
+#
+# leaves the file in the same state as it was in at the start of the
+# command (assuming that the file is at least ($x>>8) bytes in size).
+#
+proc modify_database {iMod} {
+  set blob [binary format c [expr {$iMod&0xFF}]]
+  set offset [expr {$iMod>>8}]
+
+  set fd [open test.db r+]
+  fconfigure $fd -translation binary
+  seek $fd $offset
+  set old_blob [read $fd 1]
+  seek $fd $offset
+  puts -nonewline $fd $blob
+  close $fd
+
+  binary scan $old_blob c iOld
+  return [expr {($offset<<8) + ($iOld&0xFF)}]
+}
+
+proc purge_pcache {} {
+  ifcapable !memorymanage {
+    db close
+    sqlite3 db test.db
+  } else {
+    sqlite3_release_memory 10000000
+  }
+  if {[lindex [pcache_stats] 1] != 0} {
+    error "purge_pcache failed: [pcache_stats]"
+  }
+}
+
+# This block creates a database to work with. 
+#
+do_test fuzz3-1 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t1(a, b, c);
+    CREATE TABLE t2(d, e, f);
+    CREATE INDEX i1 ON t1(a, b, c);
+    CREATE INDEX i2 ON t2(d, e, f);
+  }
+  for {set i 0} {$i < 50} {incr i} {
+    execsql "INSERT INTO t1 VALUES([rvalue], [rvalue], [rvalue])"
+    execsql "INSERT INTO t2 VALUES([rvalue], [rvalue], [rvalue])"
+  }
+  execsql COMMIT
+} {}
+
+set ::cksum [db_checksum]
+do_test fuzz3-2 {
+  db_checksum
+} $::cksum
+
+for {set ii 0} {$ii < 5000} {incr ii} {
+  purge_pcache
+
+  # Randomly modify a single byte of the database file somewhere within
+  # the first 100KB of the file.
+  set iNew [expr int(rand()*5*1024*256)]
+  set iOld [modify_database $iNew]
+
+  set iTest 0
+  foreach sql {
+    {SELECT * FROM t2 ORDER BY d}      
+    {SELECT * FROM t1}                 
+    {SELECT * FROM t2}                 
+    {SELECT * FROM t1 ORDER BY a}      
+    {SELECT * FROM t1 WHERE a = (SELECT a FROM t1 WHERE rowid=25)} 
+    {SELECT * FROM t2 WHERE d = (SELECT d FROM t2 WHERE rowid=1)}  
+    {SELECT * FROM t2 WHERE d = (SELECT d FROM t2 WHERE rowid=50)} 
+    {PRAGMA integrity_check}           
+  } {
+    do_test fuzz3-$ii.$iNew.[incr iTest] {
+      foreach {rc msg} [catchsql $sql] {}
+      if {$rc == 0 
+       || $msg eq "database or disk is full"
+       || $msg eq "database disk image is malformed"
+       || $msg eq "file is not a database"
+       || [string match "malformed database schema*" $msg]
+      } {
+        set msg ok
+      }
+      set msg
+    } {ok}
+  }
+
+  # Restore the original database file content. Test that the correct 
+  # checksum is now returned.
+  #
+  purge_pcache
+  modify_database $iOld
+  do_test fuzz3-$ii.$iNew.[incr iTest] {
+    db_checksum
+  } $::cksum
+}
+
+test_restore_config_pagecache
+finish_test
diff --git a/test/fuzz4.test b/test/fuzz4.test
new file mode 100644
index 0000000000000000000000000000000000000000..821cd16555a1e91db86e0f5fbfa0b20efd4afd92
--- /dev/null
+++ b/test/fuzz4.test
@@ -0,0 +1,82 @@
+# 2018-12-12
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+# Test cases found by Matthew Denton's fuzzer at Chrome.
+#
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_execsql_test fuzz4-100 {
+  CREATE TABLE Table0 (Col0  NOT NULL DEFAULT (CURRENT_TIME IS 1 > 1));
+  INSERT OR REPLACE INTO Table0 DEFAULT VALUES ;
+  SELECT * FROM Table0;
+} {0}
+
+do_execsql_test fuzz4-110 {
+  CREATE TABLE Table1(
+    Col0 TEXT DEFAULT (CASE WHEN 1 IS 3530822107858468864 
+                            THEN 1 ELSE quote(1) IS 3530822107858468864 END)
+  );
+  INSERT INTO Table1 DEFAULT VALUES;
+  SELECT * FROM Table1;
+} {0}
+
+do_execsql_test fuzz4-200 {
+  CREATE TABLE Table2a(
+     Col0  NOT NULL   DEFAULT (CURRENT_TIME IS 1  IS NOT 1  > 1)
+  );
+  INSERT OR REPLACE INTO Table2a DEFAULT VALUES;
+  SELECT * FROM Table2a;
+} {0}
+
+do_execsql_test fuzz4-210 {
+  CREATE TABLE Table2b (Col0  NOT NULL  DEFAULT (CURRENT_TIME  IS NOT FALSE)) ;
+  INSERT OR REPLACE INTO Table2b DEFAULT VALUES ;
+  SELECT * FROM Table2b;
+} {1}
+
+do_execsql_test fuzz4-300 {
+  CREATE TABLE Table3 (Col0 DEFAULT (CURRENT_TIMESTAMP BETWEEN 1 AND 1));
+  INSERT INTO Table3 DEFAULT VALUES;
+  SELECT * FROM Table3;
+} {0}
+
+do_execsql_test fuzz4-400 {
+  CREATE TABLE Table4 (Col0 DEFAULT (1 BETWEEN CURRENT_TIMESTAMP AND 1));
+  INSERT INTO Table4 DEFAULT VALUES;
+  SELECT * FROM Table4;
+} {0}
+
+do_execsql_test fuzz4-500 {
+  CREATE TABLE Table5 (Col0 DEFAULT (1 BETWEEN 1 AND CURRENT_TIMESTAMP));
+  INSERT INTO Table5 DEFAULT VALUES;
+  SELECT * FROM Table5;
+} {1}
+
+do_execsql_test fuzz4-600 {
+  CREATE TEMPORARY TABLE Table6(
+    Col0 DEFAULT (CASE x'5d' WHEN 1 THEN
+        CASE CURRENT_TIMESTAMP WHEN 1 THEN 1 ELSE 1 END
+        ELSE CASE WHEN 1 THEN FALSE END  END )
+  );
+  INSERT INTO temp.Table6 DEFAULT VALUES ;
+  SELECT * FROM Table6;
+} {0}
+do_execsql_test fuzz4-610 {
+  WITH TableX AS (SELECT DISTINCT * ORDER BY 1  , 1 COLLATE RTRIM)
+      DELETE FROM Table6  WHERE Col0 || +8388608  ;
+  SELECT * FROM Table6;
+} {}
+
+
+finish_test
diff --git a/test/fuzz_common.tcl b/test/fuzz_common.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..520555bd29b09011035f09e93b81186fbb1015ed
--- /dev/null
+++ b/test/fuzz_common.tcl
@@ -0,0 +1,392 @@
+# 2007 May 10
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# $Id: fuzz_common.tcl,v 1.2 2009/01/05 19:36:30 drh Exp $
+
+proc fuzz {TemplateList} {
+  set n [llength $TemplateList]
+  set i [expr {int(rand()*$n)}]
+  set r [uplevel 1 subst -novar [list [lindex $TemplateList $i]]]
+
+  string map {"\n" " "} $r
+}
+
+# Fuzzy generation primitives:
+#
+#     Literal
+#     UnaryOp
+#     BinaryOp
+#     Expr
+#     Table
+#     Select
+#     Insert
+#
+
+# Returns a string representing an SQL literal.
+#
+proc Literal {} {
+  set TemplateList {
+    456 0 -456 1 -1 
+    2147483648 2147483647 2147483649 -2147483647 -2147483648 -2147483649
+    'The' 'first' 'experiments' 'in' 'hardware' 'fault' 'injection'
+    zeroblob(1000)
+    NULL
+    56.1 -56.1
+    123456789.1234567899
+  }
+  fuzz $TemplateList
+}
+
+# Returns a string containing an SQL unary operator (e.g. "+" or "NOT").
+#
+proc UnaryOp {} {
+  set TemplateList {+ - NOT ~}
+  fuzz $TemplateList
+}
+
+# Returns a string containing an SQL binary operator (e.g. "*" or "/").
+#
+proc BinaryOp {} {
+  set TemplateList {
+    || * / % + - << >> & | < <= > >= = == != <> AND OR
+    LIKE GLOB {NOT LIKE}
+  }
+  fuzz $TemplateList
+}
+
+# Return the complete text of an SQL expression.
+#
+set ::ExprDepth 0
+proc Expr { {c {}} } {
+  incr ::ExprDepth
+
+  set TemplateList [concat $c $c $c {[Literal]}]
+  if {$::ExprDepth < 3} {
+    lappend TemplateList \
+      {[Expr $c] [BinaryOp] [Expr $c]}                              \
+      {[UnaryOp] [Expr $c]}                                         \
+      {[Expr $c] ISNULL}                                            \
+      {[Expr $c] NOTNULL}                                           \
+      {CAST([Expr $c] AS blob)}                                     \
+      {CAST([Expr $c] AS text)}                                     \
+      {CAST([Expr $c] AS integer)}                                  \
+      {CAST([Expr $c] AS real)}                                     \
+      {abs([Expr])}                                                 \
+      {coalesce([Expr], [Expr])}                                    \
+      {hex([Expr])}                                                 \
+      {length([Expr])}                                              \
+      {lower([Expr])}                                               \
+      {upper([Expr])}                                               \
+      {quote([Expr])}                                               \
+      {random()}                                                    \
+      {randomblob(min(max([Expr],1), 500))}                         \
+      {typeof([Expr])}                                              \
+      {substr([Expr],[Expr],[Expr])}                                \
+      {CASE WHEN [Expr $c] THEN [Expr $c] ELSE [Expr $c] END}       \
+      {[Literal]} {[Literal]} {[Literal]}                           \
+      {[Literal]} {[Literal]} {[Literal]}                           \
+      {[Literal]} {[Literal]} {[Literal]}                           \
+      {[Literal]} {[Literal]} {[Literal]}
+  }
+  if {$::SelectDepth < 4} {
+    lappend TemplateList \
+      {([Select 1])}                       \
+      {[Expr $c] IN ([Select 1])}          \
+      {[Expr $c] NOT IN ([Select 1])}      \
+      {EXISTS ([Select 1])}                \
+  } 
+  set res [fuzz $TemplateList]
+  incr ::ExprDepth -1
+  return $res
+}
+
+# Return a valid table name.
+#
+set ::TableList [list]
+proc Table {} {
+  set TemplateList [concat sqlite_master $::TableList]
+  fuzz $TemplateList
+}
+
+# Return one of:
+#
+#     "SELECT DISTINCT", "SELECT ALL" or "SELECT"
+#
+proc SelectKw {} {
+  set TemplateList {
+    "SELECT DISTINCT"
+    "SELECT ALL"
+    "SELECT"
+  }
+  fuzz $TemplateList
+}
+
+# Return a result set for a SELECT statement.
+#
+proc ResultSet {{nRes 0} {c ""}} {
+  if {$nRes == 0} {
+    set nRes [expr {rand()*2 + 1}]
+  }
+
+  set aRes [list]
+  for {set ii 0} {$ii < $nRes} {incr ii} {
+    lappend aRes [Expr $c]
+  }
+
+  join $aRes ", "
+}
+
+set ::SelectDepth 0
+set ::ColumnList [list]
+proc SimpleSelect {{nRes 0}} {
+
+  set TemplateList {
+      {[SelectKw] [ResultSet $nRes]}
+  }
+
+  # The ::SelectDepth variable contains the number of ancestor SELECT
+  # statements (i.e. for a top level SELECT it is set to 0, for a
+  # sub-select 1, for a sub-select of a sub-select 2 etc.).
+  #
+  # If this is already greater than 3, do not generate a complicated
+  # SELECT statement. This tends to cause parser stack overflow (too
+  # boring to bother with).
+  #
+  if {$::SelectDepth < 4} {
+    lappend TemplateList \
+        {[SelectKw] [ResultSet $nRes $::ColumnList] FROM ([Select])}     \
+        {[SelectKw] [ResultSet $nRes] FROM ([Select])}                   \
+        {[SelectKw] [ResultSet $nRes $::ColumnList] FROM [Table]}        \
+        {
+             [SelectKw] [ResultSet $nRes $::ColumnList] 
+             FROM ([Select]) 
+             GROUP BY [Expr]
+             HAVING [Expr]
+        }                                                                \
+
+    if {0 == $nRes} {
+      lappend TemplateList                                               \
+          {[SelectKw] * FROM ([Select])}                                 \
+          {[SelectKw] * FROM [Table]}                                    \
+          {[SelectKw] * FROM [Table] WHERE [Expr $::ColumnList]}         \
+          {
+             [SelectKw] * 
+             FROM [Table],[Table] AS t2 
+             WHERE [Expr $::ColumnList] 
+          } {
+             [SelectKw] * 
+             FROM [Table] LEFT OUTER JOIN [Table] AS t2 
+             ON [Expr $::ColumnList]
+             WHERE [Expr $::ColumnList] 
+          }
+    }
+  } 
+
+  fuzz $TemplateList
+}
+
+# Return a SELECT statement.
+#
+# If boolean parameter $isExpr is set to true, make sure the
+# returned SELECT statement returns a single column of data.
+#
+proc Select {{nMulti 0}} {
+  set TemplateList {
+    {[SimpleSelect $nMulti]} {[SimpleSelect $nMulti]} {[SimpleSelect $nMulti]} 
+    {[SimpleSelect $nMulti]} {[SimpleSelect $nMulti]} {[SimpleSelect $nMulti]} 
+    {[SimpleSelect $nMulti]} {[SimpleSelect $nMulti]} {[SimpleSelect $nMulti]} 
+    {[SimpleSelect $nMulti]} {[SimpleSelect $nMulti]} {[SimpleSelect $nMulti]} 
+    {[SimpleSelect $nMulti] ORDER BY [Expr] DESC}
+    {[SimpleSelect $nMulti] ORDER BY [Expr] ASC}
+    {[SimpleSelect $nMulti] ORDER BY [Expr] ASC, [Expr] DESC}
+    {[SimpleSelect $nMulti] ORDER BY [Expr] LIMIT [Expr] OFFSET [Expr]}
+  }
+
+  if {$::SelectDepth < 4} {
+    if {$nMulti == 0} {
+      set nMulti [expr {(rand()*2)+1}]
+    }
+    lappend TemplateList                                             \
+        {[SimpleSelect $nMulti] UNION     [Select $nMulti]}          \
+        {[SimpleSelect $nMulti] UNION ALL [Select $nMulti]}          \
+        {[SimpleSelect $nMulti] EXCEPT    [Select $nMulti]}          \
+        {[SimpleSelect $nMulti] INTERSECT [Select $nMulti]}
+  }
+
+  incr ::SelectDepth
+  set res [fuzz $TemplateList]
+  incr ::SelectDepth -1
+  set res
+}
+
+# Generate and return a fuzzy INSERT statement.
+#
+proc Insert {} {
+  set TemplateList {
+      {INSERT INTO [Table] VALUES([Expr], [Expr], [Expr]);}
+      {INSERT INTO [Table] VALUES([Expr], [Expr], [Expr], [Expr]);}
+      {INSERT INTO [Table] VALUES([Expr], [Expr]);}
+  }
+  fuzz $TemplateList
+}
+
+proc Column {} {
+  fuzz $::ColumnList
+}
+
+# Generate and return a fuzzy UPDATE statement.
+#
+proc Update {} {
+  set TemplateList {
+    {UPDATE [Table] 
+     SET [Column] = [Expr $::ColumnList] 
+     WHERE [Expr $::ColumnList]}
+  }
+  fuzz $TemplateList
+}
+
+proc Delete {} {
+  set TemplateList {
+    {DELETE FROM [Table] WHERE [Expr $::ColumnList]}
+  }
+  fuzz $TemplateList
+}
+
+proc Statement {} {
+  set TemplateList {
+    {[Update]}
+    {[Insert]}
+    {[Select]}
+    {[Delete]}
+  }
+  fuzz $TemplateList
+}
+
+# Return an identifier. This just chooses randomly from a fixed set
+# of strings.
+proc Identifier {} {
+  set TemplateList {
+    This just chooses randomly a fixed 
+    We would also thank the developers 
+    for their analysis Samba
+  }
+  fuzz $TemplateList
+}
+
+proc Check {} {
+  # Use a large value for $::SelectDepth, because sub-selects are
+  # not allowed in expressions used by CHECK constraints.
+  #
+  set sd $::SelectDepth 
+  set ::SelectDepth 500
+  set TemplateList {
+    {}
+    {CHECK ([Expr])}
+  }
+  set res [fuzz $TemplateList]
+  set ::SelectDepth $sd
+  set res
+}
+
+proc Coltype {} {
+  set TemplateList {
+    {INTEGER PRIMARY KEY}
+    {VARCHAR [Check]}
+    {PRIMARY KEY}
+  }
+  fuzz $TemplateList
+}
+
+proc DropTable {} {
+  set TemplateList {
+    {DROP TABLE IF EXISTS [Identifier]}
+  }
+  fuzz $TemplateList
+}
+
+proc CreateView {} {
+  set TemplateList {
+    {CREATE VIEW [Identifier] AS [Select]}
+  }
+  fuzz $TemplateList
+}
+proc DropView {} {
+  set TemplateList {
+    {DROP VIEW IF EXISTS [Identifier]}
+  }
+  fuzz $TemplateList
+}
+
+proc CreateTable {} {
+  set TemplateList {
+    {CREATE TABLE [Identifier]([Identifier] [Coltype], [Identifier] [Coltype])}
+    {CREATE TEMP TABLE [Identifier]([Identifier] [Coltype])}
+  }
+  fuzz $TemplateList
+}
+
+proc CreateOrDropTableOrView {} {
+  set TemplateList {
+    {[CreateTable]}
+    {[DropTable]}
+    {[CreateView]}
+    {[DropView]}
+  }
+  fuzz $TemplateList
+}
+
+########################################################################
+
+set ::log [open fuzzy.log w]
+
+#
+# Usage: do_fuzzy_test <testname> ?<options>?
+# 
+#     -template
+#     -errorlist
+#     -repeats
+#     
+proc do_fuzzy_test {testname args} {
+  set ::fuzzyopts(-errorlist) [list]
+  set ::fuzzyopts(-repeats) $::REPEATS
+  array set ::fuzzyopts $args
+
+  lappend ::fuzzyopts(-errorlist) {parser stack overflow} 
+  lappend ::fuzzyopts(-errorlist) {ORDER BY}
+  lappend ::fuzzyopts(-errorlist) {GROUP BY}
+  lappend ::fuzzyopts(-errorlist) {datatype mismatch}
+  lappend ::fuzzyopts(-errorlist) {non-deterministic functions prohibited}
+
+  for {set ii 0} {$ii < $::fuzzyopts(-repeats)} {incr ii} {
+    do_test ${testname}.$ii {
+      set ::sql [subst $::fuzzyopts(-template)]
+      puts $::log $::sql
+      flush $::log
+      set rc [catch {execsql $::sql} msg]
+      set e 1
+      if {$rc} {
+        set e 0
+        foreach error $::fuzzyopts(-errorlist) {
+          if {[string first $error $msg]>=0} {
+            set e 1
+            break
+          }
+        }
+      }
+      if {$e == 0} {
+        puts ""
+        puts $::sql
+        puts $msg
+      }
+      set e
+    } {1}
+  }
+}
diff --git a/test/fuzz_malloc.test b/test/fuzz_malloc.test
new file mode 100644
index 0000000000000000000000000000000000000000..4449ea8fc439f7a390250126533897f924e315d6
--- /dev/null
+++ b/test/fuzz_malloc.test
@@ -0,0 +1,100 @@
+#
+# 2007 May 10
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file tests malloc failures in concert with fuzzy SQL generation.
+#
+# $Id: fuzz_malloc.test,v 1.10 2008/08/20 16:35:10 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+source $testdir/malloc_common.tcl
+source $testdir/fuzz_common.tcl
+
+if {[info exists G(isquick)]} {
+  set ::REPEATS 20
+} elseif {[info exists G(issoak)]} {
+  set ::REPEATS 100
+} else {
+  set ::REPEATS 40
+}
+
+#
+# Usage: do_fuzzy_malloc_test <testname> ?<options>?
+# 
+#     -template
+#     -sqlprep
+#     -repeats
+#     
+proc do_fuzzy_malloc_test {testname args} {
+  set ::fuzzyopts(-repeats) $::REPEATS
+  set ::fuzzyopts(-sqlprep) {}
+  array set ::fuzzyopts $args
+
+  sqlite3_memdebug_fail -1
+  db close
+  delete_file test.db test.db-journal
+  sqlite3 db test.db
+  set ::prep $::fuzzyopts(-sqlprep)
+  execsql $::prep
+  set jj 0
+  for {set ii 0} {$ii < $::fuzzyopts(-repeats)} {incr ii} {
+    expr srand($jj)
+    incr jj
+    set ::sql [subst $::fuzzyopts(-template)]
+    # puts fuzyy-sql=\[$::sql\]; flush stdout
+    foreach {rc ::fmtres} [catchsql "$::sql"] {}
+    if {$rc==0} {
+      set nErr1 [set_test_counter errors]
+      do_faultsim_test $testname-$ii -faults oom* -body {
+        execsql $::sql
+      } -test {
+        if {$testrc && $testresult!="datatype mismatch"} { 
+          faultsim_test_result {0 {}}
+        }
+      }
+      if {[set_test_counter errors]>$nErr1} {
+        puts "Previous fuzzy-sql=\[$::sql\]"
+        flush stdout
+      }
+    } else {
+      incr ii -1
+    }
+  }
+}
+
+#----------------------------------------------------------------
+# Test malloc failure during parsing (and execution) of a fuzzily 
+# generated expressions.
+#
+do_fuzzy_malloc_test fuzzy_malloc-1 -template {Select [Expr]}
+do_fuzzy_malloc_test fuzzy_malloc-2 -template {[Select]}
+
+set ::SQLPREP {
+  BEGIN;
+    CREATE TABLE abc(a, b, c);
+    CREATE TABLE def(a, b, c);
+    CREATE TABLE ghi(a, b, c);
+    INSERT INTO abc VALUES(1.5, 3, 'a short string');
+    INSERT INTO def VALUES(NULL, X'ABCDEF', 
+        'a longer string. Long enough that it doesn''t fit in Mem.zShort');
+    INSERT INTO ghi VALUES(zeroblob(1000), 'hello world', -1257900987654321);
+  COMMIT;
+}
+set ::TableList  [list abc def ghi]
+set ::ColumnList [list a b c]
+
+do_fuzzy_malloc_test fuzzy_malloc-3 \
+  -template {[Select]}              \
+  -sqlprep $::SQLPREP
+
+finish_test
diff --git a/test/fuzzcheck.c b/test/fuzzcheck.c
new file mode 100644
index 0000000000000000000000000000000000000000..390d804df12be49a15020e76d77231978c6b536b
--- /dev/null
+++ b/test/fuzzcheck.c
@@ -0,0 +1,2612 @@
+/*
+** 2015-05-25
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** This is a utility program designed to aid running regressions tests on
+** the SQLite library using data from external fuzzers.
+**
+** This program reads content from an SQLite database file with the following
+** schema:
+**
+**     CREATE TABLE db(
+**       dbid INTEGER PRIMARY KEY, -- database id
+**       dbcontent BLOB            -- database disk file image
+**     );
+**     CREATE TABLE xsql(
+**       sqlid INTEGER PRIMARY KEY,   -- SQL script id
+**       sqltext TEXT                 -- Text of SQL statements to run
+**     );
+**     CREATE TABLE IF NOT EXISTS readme(
+**       msg TEXT -- Human-readable description of this test collection
+**     );
+**
+** For each database file in the DB table, the SQL text in the XSQL table
+** is run against that database.  All README.MSG values are printed prior
+** to the start of the test (unless the --quiet option is used).  If the
+** DB table is empty, then all entries in XSQL are run against an empty
+** in-memory database.
+**
+** This program is looking for crashes, assertion faults, and/or memory leaks.
+** No attempt is made to verify the output.  The assumption is that either all
+** of the database files or all of the SQL statements are malformed inputs,
+** generated by a fuzzer, that need to be checked to make sure they do not
+** present a security risk.
+**
+** This program also includes some command-line options to help with 
+** creation and maintenance of the source content database.  The command
+**
+**     ./fuzzcheck database.db --load-sql FILE...
+**
+** Loads all FILE... arguments into the XSQL table.  The --load-db option
+** works the same but loads the files into the DB table.  The -m option can
+** be used to initialize the README table.  The "database.db" file is created
+** if it does not previously exist.  Example:
+**
+**     ./fuzzcheck new.db --load-sql *.sql
+**     ./fuzzcheck new.db --load-db *.db
+**     ./fuzzcheck new.db -m 'New test cases'
+**
+** The three commands above will create the "new.db" file and initialize all
+** tables.  Then do "./fuzzcheck new.db" to run the tests.
+**
+** DEBUGGING HINTS:
+**
+** If fuzzcheck does crash, it can be run in the debugger and the content
+** of the global variable g.zTextName[] will identify the specific XSQL and
+** DB values that were running when the crash occurred.
+**
+** DBSQLFUZZ: (Added 2020-02-25)
+**
+** The dbsqlfuzz fuzzer includes both a database file and SQL to run against
+** that database in its input.  This utility can now process dbsqlfuzz
+** input files.  Load such files using the "--load-dbsql FILE ..." command-line
+** option.
+**
+** Dbsqlfuzz inputs are ordinary text.  The first part of the file is text
+** that describes the content of the database (using a lot of hexadecimal),
+** then there is a divider line followed by the SQL to run against the
+** database.  Because they are ordinary text, dbsqlfuzz inputs are stored
+** in the XSQL table, as if they were ordinary SQL inputs.  The isDbSql()
+** function can look at a text string and determine whether or not it is
+** a valid dbsqlfuzz input.
+*/
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+#include <ctype.h>
+#include <assert.h>
+#include "sqlite3.h"
+#include "sqlite3recover.h"
+#define ISSPACE(X) isspace((unsigned char)(X))
+#define ISDIGIT(X) isdigit((unsigned char)(X))
+
+
+#ifdef __unix__
+# include <signal.h>
+# include <unistd.h>
+#endif
+
+#include <stddef.h>
+#if !defined(_MSC_VER)
+# include <stdint.h>
+#endif
+
+#if defined(_MSC_VER)
+typedef unsigned char uint8_t;
+#endif
+
+/*
+** Files in the virtual file system.
+*/
+typedef struct VFile VFile;
+struct VFile {
+  char *zFilename;      /* Filename.  NULL for delete-on-close. From malloc() */
+  int sz;               /* Size of the file in bytes */
+  int nRef;             /* Number of references to this file */
+  unsigned char *a;     /* Content of the file.  From malloc() */
+};
+typedef struct VHandle VHandle;
+struct VHandle {
+  sqlite3_file base;      /* Base class.  Must be first */
+  VFile *pVFile;          /* The underlying file */
+};
+
+/*
+** The value of a database file template, or of an SQL script
+*/
+typedef struct Blob Blob;
+struct Blob {
+  Blob *pNext;            /* Next in a list */
+  int id;                 /* Id of this Blob */
+  int seq;                /* Sequence number */
+  int sz;                 /* Size of this Blob in bytes */
+  unsigned char a[1];     /* Blob content.  Extra space allocated as needed. */
+};
+
+/*
+** Maximum number of files in the in-memory virtual filesystem.
+*/
+#define MX_FILE  10
+
+/*
+** Maximum allowed file size
+*/
+#define MX_FILE_SZ 10000000
+
+/*
+** All global variables are gathered into the "g" singleton.
+*/
+static struct GlobalVars {
+  const char *zArgv0;              /* Name of program */
+  const char *zDbFile;             /* Name of database file */
+  VFile aFile[MX_FILE];            /* The virtual filesystem */
+  int nDb;                         /* Number of template databases */
+  Blob *pFirstDb;                  /* Content of first template database */
+  int nSql;                        /* Number of SQL scripts */
+  Blob *pFirstSql;                 /* First SQL script */
+  unsigned int uRandom;            /* Seed for the SQLite PRNG */
+  unsigned int nInvariant;         /* Number of invariant checks run */
+  char zTestName[100];             /* Name of current test */
+} g;
+
+/*
+** Include various extensions.
+*/
+extern int sqlite3_vt02_init(sqlite3*,char**,const sqlite3_api_routines*);
+extern int sqlite3_randomjson_init(sqlite3*,char**,const sqlite3_api_routines*);
+extern int sqlite3_percentile_init(sqlite3*,char**,const sqlite3_api_routines*);
+
+
+/*
+** Print an error message and quit.
+*/
+static void fatalError(const char *zFormat, ...){
+  va_list ap;
+  fprintf(stderr, "%s", g.zArgv0);
+  if( g.zDbFile ) fprintf(stderr, " %s", g.zDbFile);
+  if( g.zTestName[0] ) fprintf(stderr, " (%s)", g.zTestName);
+  fprintf(stderr, ": ");
+  va_start(ap, zFormat);
+  vfprintf(stderr, zFormat, ap);
+  va_end(ap);
+  fprintf(stderr, "\n");
+  exit(1);
+}
+
+/*
+** signal handler
+*/
+#ifdef __unix__
+static void signalHandler(int signum){
+  const char *zSig;
+  if( signum==SIGABRT ){
+    zSig = "abort";
+  }else if( signum==SIGALRM ){
+    zSig = "timeout";
+  }else if( signum==SIGSEGV ){
+    zSig = "segfault";
+  }else{
+    zSig = "signal";
+  }
+  fatalError(zSig);
+}
+#endif
+
+/*
+** Set the an alarm to go off after N seconds.  Disable the alarm
+** if N==0
+*/
+static void setAlarm(int N){
+#ifdef __unix__
+  alarm(N);
+#else
+  (void)N;
+#endif
+}
+
+#ifndef SQLITE_OMIT_PROGRESS_CALLBACK
+/*
+** This an SQL progress handler.  After an SQL statement has run for
+** many steps, we want to interrupt it.  This guards against infinite
+** loops from recursive common table expressions.
+**
+** *pVdbeLimitFlag is true if the --limit-vdbe command-line option is used.
+** In that case, hitting the progress handler is a fatal error.
+*/
+static int progressHandler(void *pVdbeLimitFlag){
+  if( *(int*)pVdbeLimitFlag ) fatalError("too many VDBE cycles");
+  return 1;
+}
+#endif
+
+/*
+** Reallocate memory.  Show an error and quit if unable.
+*/
+static void *safe_realloc(void *pOld, int szNew){
+  void *pNew = realloc(pOld, szNew<=0 ? 1 : szNew);
+  if( pNew==0 ) fatalError("unable to realloc for %d bytes", szNew);
+  return pNew;
+}
+
+/*
+** Initialize the virtual file system.
+*/
+static void formatVfs(void){
+  int i;
+  for(i=0; i<MX_FILE; i++){
+    g.aFile[i].sz = -1;
+    g.aFile[i].zFilename = 0;
+    g.aFile[i].a = 0;
+    g.aFile[i].nRef = 0;
+  }
+}
+
+
+/*
+** Erase all information in the virtual file system.
+*/
+static void reformatVfs(void){
+  int i;
+  for(i=0; i<MX_FILE; i++){
+    if( g.aFile[i].sz<0 ) continue;
+    if( g.aFile[i].zFilename ){
+      free(g.aFile[i].zFilename);
+      g.aFile[i].zFilename = 0;
+    }
+    if( g.aFile[i].nRef>0 ){
+      fatalError("file %d still open.  nRef=%d", i, g.aFile[i].nRef);
+    }
+    g.aFile[i].sz = -1;
+    free(g.aFile[i].a);
+    g.aFile[i].a = 0;
+    g.aFile[i].nRef = 0;
+  }
+}
+
+/*
+** Find a VFile by name
+*/
+static VFile *findVFile(const char *zName){
+  int i;
+  if( zName==0 ) return 0;
+  for(i=0; i<MX_FILE; i++){
+    if( g.aFile[i].zFilename==0 ) continue;   
+    if( strcmp(g.aFile[i].zFilename, zName)==0 ) return &g.aFile[i];
+  }
+  return 0;
+}
+
+/*
+** Find a VFile by name.  Create it if it does not already exist and
+** initialize it to the size and content given.
+**
+** Return NULL only if the filesystem is full.
+*/
+static VFile *createVFile(const char *zName, int sz, unsigned char *pData){
+  VFile *pNew = findVFile(zName);
+  int i;
+  if( pNew ) return pNew;
+  for(i=0; i<MX_FILE && g.aFile[i].sz>=0; i++){}
+  if( i>=MX_FILE ) return 0;
+  pNew = &g.aFile[i];
+  if( zName ){
+    int nName = (int)strlen(zName)+1;
+    pNew->zFilename = safe_realloc(0, nName);
+    memcpy(pNew->zFilename, zName, nName);
+  }else{
+    pNew->zFilename = 0;
+  }
+  pNew->nRef = 0;
+  pNew->sz = sz;
+  pNew->a = safe_realloc(0, sz);
+  if( sz>0 ) memcpy(pNew->a, pData, sz);
+  return pNew;
+}
+
+/* Return true if the line is all zeros */
+static int allZero(unsigned char *aLine){
+  int i;
+  for(i=0; i<16 && aLine[i]==0; i++){}
+  return i==16;
+}
+
+/*
+** Render a database and query as text that can be input into
+** the CLI.
+*/
+static void renderDbSqlForCLI(
+  FILE *out,             /* Write to this file */
+  const char *zFile,     /* Name of the database file */
+  unsigned char *aDb,    /* Database content */
+  int nDb,               /* Number of bytes in aDb[] */
+  unsigned char *zSql,   /* SQL content */
+  int nSql               /* Bytes of SQL */
+){
+  fprintf(out, ".print ******* %s *******\n", zFile);
+  if( nDb>100 ){
+    int i, j;                   /* Loop counters */
+    int pgsz;                   /* Size of each page */
+    int lastPage = 0;           /* Last page number shown */
+    int iPage;                  /* Current page number */
+    unsigned char *aLine;       /* Single line to display */
+    unsigned char buf[16];      /* Fake line */
+    unsigned char bShow[256];   /* Characters ok to display */
+
+    memset(bShow, '.', sizeof(bShow));
+    for(i=' '; i<='~'; i++){
+      if( i!='{' && i!='}' && i!='"' && i!='\\' ) bShow[i] = i;
+    }
+    pgsz = (aDb[16]<<8) | aDb[17];
+    if( pgsz==0 ) pgsz = 65536;
+    if( pgsz<512 || (pgsz&(pgsz-1))!=0 ) pgsz = 4096;
+    fprintf(out,".open --hexdb\n");
+    fprintf(out,"| size %d pagesize %d filename %s\n",nDb,pgsz,zFile);
+    for(i=0; i<nDb; i += 16){
+      if( i+16>nDb ){
+        memset(buf, 0, sizeof(buf));
+        memcpy(buf, aDb+i, nDb-i);
+        aLine = buf;
+      }else{
+        aLine = aDb + i;
+      }
+      if( allZero(aLine) ) continue;
+      iPage = i/pgsz + 1;
+      if( lastPage!=iPage ){
+        fprintf(out,"| page %d offset %d\n", iPage, (iPage-1)*pgsz);
+        lastPage = iPage;
+      }
+      fprintf(out,"|  %5d:", i-(iPage-1)*pgsz);
+      for(j=0; j<16; j++) fprintf(out," %02x", aLine[j]);
+      fprintf(out,"   ");
+      for(j=0; j<16; j++){
+        unsigned char c = (unsigned char)aLine[j];
+        fputc( bShow[c], stdout);
+      }
+      fputc('\n', stdout);
+    }
+    fprintf(out,"| end %s\n", zFile);
+  }else{
+    fprintf(out,".open :memory:\n");
+  }
+  fprintf(out,".testctrl prng_seed 1 db\n");
+  fprintf(out,".testctrl internal_functions\n");
+  fprintf(out,"%.*s", nSql, zSql);
+  if( nSql>0 && zSql[nSql-1]!='\n' ) fprintf(out, "\n");
+}
+
+/*
+** Read the complete content of a file into memory.  Add a 0x00 terminator
+** and return a pointer to the result.
+**
+** The file content is held in memory obtained from sqlite_malloc64() which
+** should be freed by the caller.
+*/
+static char *readFile(const char *zFilename, long *sz){
+  FILE *in;
+  long nIn;
+  unsigned char *pBuf;
+
+  *sz = 0;
+  if( zFilename==0 ) return 0;
+  in = fopen(zFilename, "rb");
+  if( in==0 ) return 0;
+  fseek(in, 0, SEEK_END);
+  *sz = nIn = ftell(in);
+  rewind(in);
+  pBuf = sqlite3_malloc64( nIn+1 );
+  if( pBuf && 1==fread(pBuf, nIn, 1, in) ){
+    pBuf[nIn] = 0;
+    fclose(in);
+    return (char*)pBuf;
+  }  
+  sqlite3_free(pBuf);
+  *sz = 0;
+  fclose(in);
+  return 0;
+}
+
+
+/*
+** Implementation of the "readfile(X)" SQL function.  The entire content
+** of the file named X is read and returned as a BLOB.  NULL is returned
+** if the file does not exist or is unreadable.
+*/
+static void readfileFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  long nIn;
+  void *pBuf;
+  const char *zName = (const char*)sqlite3_value_text(argv[0]);
+
+  if( zName==0 ) return;
+  pBuf = readFile(zName, &nIn);
+  if( pBuf ){
+    sqlite3_result_blob(context, pBuf, nIn, sqlite3_free);
+  }
+}
+
+/*
+** Implementation of the "readtextfile(X)" SQL function.  The text content
+** of the file named X through the end of the file or to the first \000
+** character, whichever comes first, is read and returned as TEXT.  NULL
+** is returned if the file does not exist or is unreadable.
+*/
+static void readtextfileFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  const char *zName;
+  FILE *in;
+  long nIn;
+  char *pBuf;
+
+  zName = (const char*)sqlite3_value_text(argv[0]);
+  if( zName==0 ) return;
+  in = fopen(zName, "rb");
+  if( in==0 ) return;
+  fseek(in, 0, SEEK_END);
+  nIn = ftell(in);
+  rewind(in);
+  pBuf = sqlite3_malloc64( nIn+1 );
+  if( pBuf && 1==fread(pBuf, nIn, 1, in) ){
+    pBuf[nIn] = 0;
+    sqlite3_result_text(context, pBuf, -1, sqlite3_free);
+  }else{
+    sqlite3_free(pBuf);
+  }
+  fclose(in);
+}
+
+/*
+** Implementation of the "writefile(X,Y)" SQL function.  The argument Y
+** is written into file X.  The number of bytes written is returned.  Or
+** NULL is returned if something goes wrong, such as being unable to open
+** file X for writing.
+*/
+static void writefileFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  FILE *out;
+  const char *z;
+  sqlite3_int64 rc;
+  const char *zFile;
+
+  (void)argc;
+  zFile = (const char*)sqlite3_value_text(argv[0]);
+  if( zFile==0 ) return;
+  out = fopen(zFile, "wb");
+  if( out==0 ) return;
+  z = (const char*)sqlite3_value_blob(argv[1]);
+  if( z==0 ){
+    rc = 0;
+  }else{
+    rc = fwrite(z, 1, sqlite3_value_bytes(argv[1]), out);
+  }
+  fclose(out);
+  sqlite3_result_int64(context, rc);
+}
+
+
+/*
+** Load a list of Blob objects from the database
+*/
+static void blobListLoadFromDb(
+  sqlite3 *db,             /* Read from this database */
+  const char *zSql,        /* Query used to extract the blobs */
+  int onlyId,              /* Only load where id is this value */
+  int *pN,                 /* OUT: Write number of blobs loaded here */
+  Blob **ppList            /* OUT: Write the head of the blob list here */
+){
+  Blob head;
+  Blob *p;
+  sqlite3_stmt *pStmt;
+  int n = 0;
+  int rc;
+  char *z2;
+
+  if( onlyId>0 ){
+    z2 = sqlite3_mprintf("%s WHERE rowid=%d", zSql, onlyId);
+  }else{
+    z2 = sqlite3_mprintf("%s", zSql);
+  }
+  rc = sqlite3_prepare_v2(db, z2, -1, &pStmt, 0);
+  sqlite3_free(z2);
+  if( rc ) fatalError("%s", sqlite3_errmsg(db));
+  head.pNext = 0;
+  p = &head;
+  while( SQLITE_ROW==sqlite3_step(pStmt) ){
+    int sz = sqlite3_column_bytes(pStmt, 1);
+    Blob *pNew = safe_realloc(0, sizeof(*pNew)+sz );
+    pNew->id = sqlite3_column_int(pStmt, 0);
+    pNew->sz = sz;
+    pNew->seq = n++;
+    pNew->pNext = 0;
+    memcpy(pNew->a, sqlite3_column_blob(pStmt,1), sz);
+    pNew->a[sz] = 0;
+    p->pNext = pNew;
+    p = pNew;
+  }
+  sqlite3_finalize(pStmt);
+  *pN = n;
+  *ppList = head.pNext;
+}
+
+/*
+** Free a list of Blob objects
+*/
+static void blobListFree(Blob *p){
+  Blob *pNext;
+  while( p ){
+    pNext = p->pNext;
+    free(p);
+    p = pNext;
+  }
+}
+
+/* Return the current wall-clock time
+**
+** The number of milliseconds since the julian epoch.
+** 1907-01-01 00:00:00  ->  210866716800000
+** 2021-01-01 00:00:00  ->  212476176000000
+*/
+static sqlite3_int64 timeOfDay(void){
+  static sqlite3_vfs *clockVfs = 0;
+  sqlite3_int64 t;
+  if( clockVfs==0 ){
+    clockVfs = sqlite3_vfs_find(0);
+    if( clockVfs==0 ) return 0;
+  }
+  if( clockVfs->iVersion>=1 && clockVfs->xCurrentTimeInt64!=0 ){
+    clockVfs->xCurrentTimeInt64(clockVfs, &t);
+  }else{
+    double r;
+    clockVfs->xCurrentTime(clockVfs, &r);
+    t = (sqlite3_int64)(r*86400000.0);
+  }
+  return t;
+}
+
+/***************************************************************************
+** Code to process combined database+SQL scripts generated by the
+** dbsqlfuzz fuzzer.
+*/
+
+/* An instance of the following object is passed by pointer as the
+** client data to various callbacks.
+*/
+typedef struct FuzzCtx {
+  sqlite3 *db;               /* The database connection */
+  sqlite3_int64 iCutoffTime; /* Stop processing at this time. */
+  sqlite3_int64 iLastCb;     /* Time recorded for previous progress callback */
+  sqlite3_int64 mxInterval;  /* Longest interval between two progress calls */
+  unsigned nCb;              /* Number of progress callbacks */
+  unsigned mxCb;             /* Maximum number of progress callbacks allowed */
+  unsigned execCnt;          /* Number of calls to the sqlite3_exec callback */
+  int timeoutHit;            /* True when reaching a timeout */
+} FuzzCtx;
+
+/* Verbosity level for the dbsqlfuzz test runner */
+static int eVerbosity = 0;
+
+/* True to activate PRAGMA vdbe_debug=on */
+static int bVdbeDebug = 0;
+
+/* Timeout for each fuzzing attempt, in milliseconds */
+static int giTimeout = 10000;   /* Defaults to 10 seconds */
+
+/* Maximum number of progress handler callbacks */
+static unsigned int mxProgressCb = 2000;
+
+/* Maximum string length in SQLite */
+static int lengthLimit = 1000000;
+
+/* Maximum expression depth */
+static int depthLimit = 500;
+
+/* Limit on the amount of heap memory that can be used */
+static sqlite3_int64 heapLimit = 100000000;
+
+/* Maximum byte-code program length in SQLite */
+static int vdbeOpLimit = 25000;
+
+/* Maximum size of the in-memory database */
+static sqlite3_int64 maxDbSize = 104857600;
+/* OOM simulation parameters */
+static unsigned int oomCounter = 0;    /* Simulate OOM when equals 1 */
+static unsigned int oomRepeat = 0;     /* Number of OOMs in a row */
+static void*(*defaultMalloc)(int) = 0; /* The low-level malloc routine */
+
+/* Enable recovery */
+static int bNoRecover = 0;
+
+/* This routine is called when a simulated OOM occurs.  It is broken
+** out as a separate routine to make it easy to set a breakpoint on
+** the OOM
+*/
+void oomFault(void){
+  if( eVerbosity ){
+    printf("Simulated OOM fault\n");
+  }
+  if( oomRepeat>0 ){
+    oomRepeat--;
+  }else{
+    oomCounter--;
+  }
+}
+
+/* This routine is a replacement malloc() that is used to simulate
+** Out-Of-Memory (OOM) errors for testing purposes.
+*/
+static void *oomMalloc(int nByte){
+  if( oomCounter ){
+    if( oomCounter==1 ){
+      oomFault();
+      return 0;
+    }else{
+      oomCounter--;
+    }
+  }
+  return defaultMalloc(nByte);
+}
+
+/* Register the OOM simulator.  This must occur before any memory
+** allocations */
+static void registerOomSimulator(void){
+  sqlite3_mem_methods mem;
+  sqlite3_shutdown();
+  sqlite3_config(SQLITE_CONFIG_GETMALLOC, &mem);
+  defaultMalloc = mem.xMalloc;
+  mem.xMalloc = oomMalloc;
+  sqlite3_config(SQLITE_CONFIG_MALLOC, &mem);
+}
+
+/* Turn off any pending OOM simulation */
+static void disableOom(void){
+  oomCounter = 0;
+  oomRepeat = 0;
+}
+
+/*
+** Translate a single byte of Hex into an integer.
+** This routine only works if h really is a valid hexadecimal
+** character:  0..9a..fA..F
+*/
+static unsigned char hexToInt(unsigned int h){
+#ifdef SQLITE_EBCDIC
+  h += 9*(1&~(h>>4));   /* EBCDIC */
+#else
+  h += 9*(1&(h>>6));    /* ASCII */
+#endif
+  return h & 0xf;
+}
+
+/*
+** The first character of buffer zIn[0..nIn-1] is a '['.  This routine
+** checked to see if the buffer holds "[NNNN]" or "[+NNNN]" and if it
+** does it makes corresponding changes to the *pK value and *pI value
+** and returns true.  If the input buffer does not match the patterns,
+** no changes are made to either *pK or *pI and this routine returns false.
+*/
+static int isOffset(
+  const unsigned char *zIn,  /* Text input */
+  int nIn,                   /* Bytes of input */
+  unsigned int *pK,          /* half-byte cursor to adjust */
+  unsigned int *pI           /* Input index to adjust */
+){
+  int i;
+  unsigned int k = 0;
+  unsigned char c;
+  for(i=1; i<nIn && (c = zIn[i])!=']'; i++){
+    if( !isxdigit(c) ) return 0;
+    k = k*16 + hexToInt(c);
+  }
+  if( i==nIn ) return 0;
+  *pK = 2*k;
+  *pI += i;
+  return 1;
+}
+
+/*
+** Decode the text starting at zIn into a binary database file.
+** The maximum length of zIn is nIn bytes.  Store the binary database
+** file in space obtained from sqlite3_malloc().
+**
+** Return the number of bytes of zIn consumed.  Or return -1 if there
+** is an error.  One potential error is that the recipe specifies a
+** database file larger than MX_FILE_SZ bytes.
+**
+** Abort on an OOM.
+*/
+static int decodeDatabase(
+  const unsigned char *zIn,      /* Input text to be decoded */
+  int nIn,                       /* Bytes of input text */
+  unsigned char **paDecode,      /* OUT: decoded database file */
+  int *pnDecode                  /* OUT: Size of decoded database */
+){
+  unsigned char *a, *aNew;       /* Database under construction */
+  int mx = 0;                    /* Current size of the database */
+  sqlite3_uint64 nAlloc = 4096;  /* Space allocated in a[] */
+  unsigned int i;                /* Next byte of zIn[] to read */
+  unsigned int j;                /* Temporary integer */
+  unsigned int k;                /* half-byte cursor index for output */
+  unsigned int n;                /* Number of bytes of input */
+  unsigned char b = 0;
+  if( nIn<4 ) return -1;
+  n = (unsigned int)nIn;
+  a = sqlite3_malloc64( nAlloc );
+  if( a==0 ){
+    fprintf(stderr, "Out of memory!\n");
+    exit(1);
+  }
+  memset(a, 0, (size_t)nAlloc);
+  for(i=k=0; i<n; i++){
+    unsigned char c = (unsigned char)zIn[i];
+    if( isxdigit(c) ){
+      k++;
+      if( k & 1 ){
+        b = hexToInt(c)*16;
+      }else{
+        b += hexToInt(c);
+        j = k/2 - 1;
+        if( j>=nAlloc ){
+          sqlite3_uint64 newSize;
+          if( nAlloc==MX_FILE_SZ || j>=MX_FILE_SZ ){
+            if( eVerbosity ){
+              fprintf(stderr, "Input database too big: max %d bytes\n",
+                      MX_FILE_SZ);
+            }
+            sqlite3_free(a);
+            return -1;
+          }
+          newSize = nAlloc*2;
+          if( newSize<=j ){
+            newSize = (j+4096)&~4095;
+          }
+          if( newSize>MX_FILE_SZ ){
+            if( j>=MX_FILE_SZ ){
+              sqlite3_free(a);
+              return -1;
+            }
+            newSize = MX_FILE_SZ;
+          }
+          aNew = sqlite3_realloc64( a, newSize );
+          if( aNew==0 ){
+            sqlite3_free(a);
+            return -1;
+          }
+          a = aNew;
+          assert( newSize > nAlloc );
+          memset(a+nAlloc, 0, (size_t)(newSize - nAlloc));
+          nAlloc = newSize;
+        }
+        if( j>=(unsigned)mx ){
+          mx = (j + 4095)&~4095;
+          if( mx>MX_FILE_SZ ) mx = MX_FILE_SZ;
+        }
+        assert( j<nAlloc );
+        a[j] = b;
+      }
+    }else if( zIn[i]=='[' && i<n-3 && isOffset(zIn+i, nIn-i, &k, &i) ){
+      continue;
+   }else if( zIn[i]=='\n' && i<n-4 && memcmp(zIn+i,"\n--\n",4)==0 ){
+      i += 4;
+      break;
+    }
+  }
+  *pnDecode = mx;
+  *paDecode = a;
+  return i;
+}
+
+/*
+** Progress handler callback.
+**
+** The argument is the cutoff-time after which all processing should
+** stop.  So return non-zero if the cut-off time is exceeded.
+*/
+static int progress_handler(void *pClientData) {
+  FuzzCtx *p = (FuzzCtx*)pClientData;
+  sqlite3_int64 iNow = timeOfDay();
+  int rc = iNow>=p->iCutoffTime;
+  sqlite3_int64 iDiff = iNow - p->iLastCb;
+  /* printf("time-remaining: %lld\n", p->iCutoffTime - iNow); */
+  if( iDiff > p->mxInterval ) p->mxInterval = iDiff;
+  p->nCb++;
+  if( rc==0 && p->mxCb>0 && p->mxCb<=p->nCb ) rc = 1;
+  if( rc && !p->timeoutHit && eVerbosity>=2 ){
+    printf("Timeout on progress callback %d\n", p->nCb);
+    fflush(stdout);
+    p->timeoutHit = 1;
+  }
+  return rc;
+}
+
+/*
+** Flag bits set by block_troublesome_sql()
+*/
+#define BTS_SELECT      0x000001
+#define BTS_NONSELECT   0x000002
+#define BTS_BADFUNC     0x000004
+#define BTS_BADPRAGMA   0x000008  /* Sticky for rest of the script */
+
+/*
+** Disallow debugging pragmas such as "PRAGMA vdbe_debug" and
+** "PRAGMA parser_trace" since they can dramatically increase the
+** amount of output without actually testing anything useful.
+**
+** Also block ATTACH if attaching a file from the filesystem.
+*/
+static int block_troublesome_sql(
+  void *pClientData,
+  int eCode,
+  const char *zArg1,
+  const char *zArg2,
+  const char *zArg3,
+  const char *zArg4
+){
+  unsigned int *pBtsFlags = (unsigned int*)pClientData;
+
+  (void)zArg3;
+  (void)zArg4;
+  switch( eCode ){
+    case SQLITE_PRAGMA: {
+      if( sqlite3_stricmp("busy_timeout",zArg1)==0
+       && (zArg2==0 || strtoll(zArg2,0,0)>100 || strtoll(zArg2,0,10)>100)
+      ){
+        return SQLITE_DENY;
+      }else if( sqlite3_stricmp("hard_heap_limit", zArg1)==0
+              || sqlite3_stricmp("reverse_unordered_selects", zArg1)==0
+      ){
+        /* BTS_BADPRAGMA is sticky.  A hard_heap_limit or
+        ** revert_unordered_selects should inhibit all future attempts
+        ** at verifying query invariants */
+        *pBtsFlags |= BTS_BADPRAGMA;
+      }else if( eVerbosity==0 ){
+        if( sqlite3_strnicmp("vdbe_", zArg1, 5)==0
+         || sqlite3_stricmp("parser_trace", zArg1)==0
+         || sqlite3_stricmp("temp_store_directory", zArg1)==0
+        ){
+         return SQLITE_DENY;
+        }
+      }else if( sqlite3_stricmp("oom",zArg1)==0
+              && zArg2!=0 && zArg2[0]!=0 ){
+        oomCounter = atoi(zArg2);
+      }
+      *pBtsFlags |= BTS_NONSELECT;
+      break;
+    }
+    case SQLITE_ATTACH: {
+      /* Deny the ATTACH if it is attaching anything other than an in-memory
+      ** database. */
+      *pBtsFlags |= BTS_NONSELECT;
+      if( zArg1==0 ) return SQLITE_DENY;
+      if( strcmp(zArg1,":memory:")==0 ) return SQLITE_OK;
+      if( sqlite3_strglob("file:*[?]vfs=memdb", zArg1)==0
+       && sqlite3_strglob("file:*[^/a-zA-Z0-9_.]*[?]vfs=memdb", zArg1)!=0
+      ){
+        return SQLITE_OK;
+      }
+      return SQLITE_DENY;
+    }
+    case SQLITE_SELECT: {
+      *pBtsFlags |= BTS_SELECT;
+      break;
+    }
+    case SQLITE_FUNCTION: {
+      static const char *azBadFuncs[] = {
+        "avg",
+        "count",
+        "cume_dist",
+        "current_date",
+        "current_time",
+        "current_timestamp",
+        "date",
+        "datetime",
+        "decimal_sum",
+        "dense_rank",
+        "first_value",
+        "geopoly_group_bbox",
+        "group_concat",
+        "implies_nonnull_row",
+        "json_group_array",
+        "json_group_object",
+        "julianday",
+        "lag",
+        "last_value",
+        "lead",
+        "max",
+        "min",
+        "nth_value",
+        "ntile",
+        "percent_rank",
+        "random",
+        "randomblob",
+        "rank",
+        "row_number",
+        "sqlite_offset",
+        "strftime",
+        "sum",
+        "time",
+        "total",
+        "unixepoch",
+      };
+      int first, last;
+      first = 0;
+      last = sizeof(azBadFuncs)/sizeof(azBadFuncs[0]) - 1;
+      do{
+        int mid = (first+last)/2;
+        int c = sqlite3_stricmp(azBadFuncs[mid], zArg2);
+        if( c<0 ){
+          first = mid+1;
+        }else if( c>0 ){
+          last = mid-1;
+        }else{
+          *pBtsFlags |= BTS_BADFUNC;
+          break;
+        }
+      }while( first<=last );
+      break;
+    }
+    case SQLITE_READ: {
+      /* Benign */
+      break;
+    }
+    default: {
+      *pBtsFlags |= BTS_NONSELECT;
+    }
+  }
+  return SQLITE_OK;
+}
+
+/* Implementation found in fuzzinvariant.c */
+extern int fuzz_invariant(
+  sqlite3 *db,            /* The database connection */
+  sqlite3_stmt *pStmt,    /* Test statement stopped on an SQLITE_ROW */
+  int iCnt,               /* Invariant sequence number, starting at 0 */
+  int iRow,               /* The row number for pStmt */
+  int nRow,               /* Total number of output rows */
+  int *pbCorrupt,         /* IN/OUT: Flag indicating a corrupt database file */
+  int eVerbosity,         /* How much debugging output */
+  unsigned int dbOpt      /* Default optimization flags */
+);
+
+/* Implementation of sqlite_dbdata and sqlite_dbptr */
+extern int sqlite3_dbdata_init(sqlite3*,const char**,void*);
+
+
+/*
+** This function is used as a callback by the recover extension. Simply
+** print the supplied SQL statement to stdout.
+*/
+static int recoverSqlCb(void *pCtx, const char *zSql){
+  if( eVerbosity>=2 ){
+    printf("%s\n", zSql);
+  }
+  return SQLITE_OK;
+}
+
+/*
+** This function is called to recover data from the database.
+*/
+static int recoverDatabase(sqlite3 *db){
+  int rc;                                 /* Return code from this routine */
+  const char *zRecoveryDb = "";           /* Name of "recovery" database */
+  const char *zLAF = "lost_and_found";    /* Name of "lost_and_found" table */
+  int bFreelist = 1;                      /* True to scan the freelist */
+  int bRowids = 1;                        /* True to restore ROWID values */
+  sqlite3_recover *p = 0;                 /* The recovery object */
+
+  p = sqlite3_recover_init_sql(db, "main", recoverSqlCb, 0);
+  sqlite3_recover_config(p, 789, (void*)zRecoveryDb);
+  sqlite3_recover_config(p, SQLITE_RECOVER_LOST_AND_FOUND, (void*)zLAF);
+  sqlite3_recover_config(p, SQLITE_RECOVER_ROWIDS, (void*)&bRowids);
+  sqlite3_recover_config(p, SQLITE_RECOVER_FREELIST_CORRUPT,(void*)&bFreelist);
+  sqlite3_recover_run(p);
+  if( sqlite3_recover_errcode(p)!=SQLITE_OK ){
+    const char *zErr = sqlite3_recover_errmsg(p);
+    int errCode = sqlite3_recover_errcode(p);
+    if( eVerbosity>0 ){
+      printf("recovery error: %s (%d)\n", zErr, errCode);
+    }
+  }
+  rc = sqlite3_recover_finish(p);
+  if( eVerbosity>0 && rc ){
+     printf("recovery returns error code %d\n", rc);
+  }
+  return rc;
+}
+/*
+** Special parameter binding, for testing and debugging purposes.
+**
+**     $int_NNN      ->   integer value NNN
+**     $text_TTTT    ->   floating point value TTT with destructor
+*/
+static void bindDebugParameters(sqlite3_stmt *pStmt){
+  int nVar = sqlite3_bind_parameter_count(pStmt);
+  int i;
+  for(i=1; i<=nVar; i++){
+    const char *zVar = sqlite3_bind_parameter_name(pStmt, i);
+    if( zVar==0 ) continue;
+    if( strncmp(zVar, "$int_", 5)==0 ){
+      sqlite3_bind_int(pStmt, i, atoi(&zVar[5]));
+    }else
+    if( strncmp(zVar, "$text_", 6)==0 ){
+      size_t szVar = strlen(zVar);
+      char *zBuf = sqlite3_malloc64( szVar-5 );
+      if( zBuf ){
+        memcpy(zBuf, &zVar[6], szVar-5);
+        sqlite3_bind_text64(pStmt, i, zBuf, szVar-6, sqlite3_free, SQLITE_UTF8);
+      }
+    }
+  }
+}
+
+/*
+** Run the SQL text
+*/
+static int runDbSql(
+  sqlite3 *db,                /* Run SQL on this database connection */
+  const char *zSql,           /* The SQL to be run */
+  unsigned int *pBtsFlags,
+  unsigned int dbOpt          /* Default optimization flags */
+){
+  int rc;
+  sqlite3_stmt *pStmt;
+  int bCorrupt = 0;
+  while( isspace(zSql[0]&0x7f) ) zSql++;
+  if( zSql[0]==0 ) return SQLITE_OK;
+  if( eVerbosity>=4 ){
+    printf("RUNNING-SQL: [%s]\n", zSql);
+    fflush(stdout);
+  }
+  (*pBtsFlags) &= BTS_BADPRAGMA;
+  rc = sqlite3_prepare_v2(db, zSql, -1, &pStmt, 0);
+  if( rc==SQLITE_OK ){
+    int nRow = 0;
+    bindDebugParameters(pStmt);
+    while( (rc = sqlite3_step(pStmt))==SQLITE_ROW ){
+      nRow++;
+      if( eVerbosity>=4 ){
+        int j;
+        for(j=0; j<sqlite3_column_count(pStmt); j++){
+          if( j ) printf(",");
+          switch( sqlite3_column_type(pStmt, j) ){
+            case SQLITE_NULL: {
+              printf("NULL");
+              break;
+            }
+            case SQLITE_INTEGER:
+            case SQLITE_FLOAT: {
+              printf("%s", sqlite3_column_text(pStmt, j));
+              break;
+            }
+            case SQLITE_BLOB: {
+              int n = sqlite3_column_bytes(pStmt, j);
+              int i;
+              const unsigned char *a;
+              a = (const unsigned char*)sqlite3_column_blob(pStmt, j);
+              printf("x'");
+              for(i=0; i<n; i++){
+                printf("%02x", a[i]);
+              }
+              printf("'");
+              break;
+            }
+            case SQLITE_TEXT: {
+              int n = sqlite3_column_bytes(pStmt, j);
+              int i;
+              const unsigned char *a;
+              a = (const unsigned char*)sqlite3_column_blob(pStmt, j);
+              printf("'");
+              for(i=0; i<n; i++){
+                if( a[i]=='\'' ){
+                  printf("''");
+                }else{
+                  putchar(a[i]);
+                }
+              }
+              printf("'");
+              break;
+            }
+          } /* End switch() */
+        } /* End for() */
+        printf("\n");
+        fflush(stdout);
+      } /* End if( eVerbosity>=5 ) */
+    } /* End while( SQLITE_ROW */
+    if( rc==SQLITE_DONE ){
+      if( (*pBtsFlags)==BTS_SELECT
+       && !sqlite3_stmt_isexplain(pStmt)
+       && nRow>0
+      ){
+        int iRow = 0;
+        sqlite3_reset(pStmt);
+        while( sqlite3_step(pStmt)==SQLITE_ROW ){
+          int iCnt = 0;
+          iRow++;
+          for(iCnt=0; iCnt<99999; iCnt++){
+            rc = fuzz_invariant(db, pStmt, iCnt, iRow, nRow,
+                                &bCorrupt, eVerbosity, dbOpt);
+            if( rc==SQLITE_DONE ) break;
+            if( rc!=SQLITE_ERROR ) g.nInvariant++;
+            if( eVerbosity>0 ){
+              if( rc==SQLITE_OK ){
+                printf("invariant-check: ok\n");
+              }else if( rc==SQLITE_CORRUPT ){
+                printf("invariant-check: failed due to database corruption\n");
+              }
+            }
+          }
+        }          
+      }
+    }else if( eVerbosity>=4 ){
+      printf("SQL-ERROR: (%d) %s\n", rc, sqlite3_errmsg(db));
+      fflush(stdout);
+    }
+  }else if( eVerbosity>=4 ){
+    printf("SQL-ERROR (%d): %s\n", rc, sqlite3_errmsg(db));
+    fflush(stdout);    
+  } /* End if( SQLITE_OK ) */
+  return sqlite3_finalize(pStmt);
+}
+
+/* Mappings into dbconfig settings for bits taken from bytes 72..75 of
+** the input database.
+**
+** This should be the same as in dbsqlfuzz.c.  Make sure those codes stay
+** in sync.
+*/
+static const struct {
+  unsigned int mask;
+  int iSetting;
+  char *zName;
+} aDbConfigSettings[] = {
+  {  0x0001, SQLITE_DBCONFIG_ENABLE_FKEY,        "enable_fkey"        },
+  {  0x0002, SQLITE_DBCONFIG_ENABLE_TRIGGER,     "enable_trigger"     },
+  {  0x0004, SQLITE_DBCONFIG_ENABLE_VIEW,        "enable_view"        },
+  {  0x0008, SQLITE_DBCONFIG_ENABLE_QPSG,        "enable_qpsg"        },
+  {  0x0010, SQLITE_DBCONFIG_TRIGGER_EQP,        "trigger_eqp"        },
+  {  0x0020, SQLITE_DBCONFIG_DEFENSIVE,          "defensive"          },
+  {  0x0040, SQLITE_DBCONFIG_WRITABLE_SCHEMA,    "writable_schema"    },
+  {  0x0080, SQLITE_DBCONFIG_LEGACY_ALTER_TABLE, "legacy_alter_table" },
+  {  0x0100, SQLITE_DBCONFIG_STMT_SCANSTATUS,    "stmt_scanstatus"    },
+  {  0x0200, SQLITE_DBCONFIG_REVERSE_SCANORDER,  "reverse_scanorder"  },
+#ifdef SQLITE_DBCONFIG_STRICT_AGGREGATE
+  {  0x0400, SQLITE_DBCONFIG_STRICT_AGGREGATE,   "strict_aggregate"   },
+#endif
+  {  0x0800, SQLITE_DBCONFIG_DQS_DML,            "dqs_dml"            },
+  {  0x1000, SQLITE_DBCONFIG_DQS_DDL,            "dqs_ddl"            },
+  {  0x2000, SQLITE_DBCONFIG_TRUSTED_SCHEMA,     "trusted_schema"     },
+};
+
+/* Toggle a dbconfig setting
+*/
+static void toggleDbConfig(sqlite3 *db, int iSetting){
+  int v = 0;
+  sqlite3_db_config(db, iSetting, -1, &v);
+  v = !v;
+  sqlite3_db_config(db, iSetting, v, 0);
+}
+
+/* Invoke this routine to run a single test case */
+int runCombinedDbSqlInput(
+  const uint8_t *aData,      /* Combined DB+SQL content */
+  size_t nByte,              /* Size of aData in bytes */
+  int iTimeout,              /* Use this timeout */
+  int bScript,               /* If true, just render CLI output */
+  int iSqlId                 /* SQL identifier */
+){
+  int rc;                    /* SQLite API return value */
+  int iSql;                  /* Index in aData[] of start of SQL */
+  unsigned char *aDb = 0;    /* Decoded database content */
+  int nDb = 0;               /* Size of the decoded database */
+  int i;                     /* Loop counter */
+  int j;                     /* Start of current SQL statement */
+  char *zSql = 0;            /* SQL text to run */
+  int nSql;                  /* Bytes of SQL text */
+  FuzzCtx cx;                /* Fuzzing context */
+  unsigned int btsFlags = 0; /* Parsing flags */
+  unsigned int dbFlags = 0;  /* Flag values from db offset 72..75 */
+  unsigned int dbOpt = 0;    /* Flag values from db offset 76..79 */
+
+
+  if( nByte<10 ) return 0;
+  if( sqlite3_initialize() ) return 0;
+  if( sqlite3_memory_used()!=0 ){
+    int nAlloc = 0;
+    int nNotUsed = 0;
+    sqlite3_status(SQLITE_STATUS_MALLOC_COUNT, &nAlloc, &nNotUsed, 0);
+    fprintf(stderr,"memory leak prior to test start:"
+                   " %lld bytes in %d allocations\n",
+            sqlite3_memory_used(), nAlloc);
+    exit(1);
+  }
+  memset(&cx, 0, sizeof(cx));
+  iSql = decodeDatabase((unsigned char*)aData, (int)nByte, &aDb, &nDb);
+  if( iSql<0 ) return 0;
+  if( nDb>=75 ){
+    dbFlags = ((unsigned int)aDb[72]<<24) + ((unsigned int)aDb[73]<<16) +
+              ((unsigned int)aDb[74]<<8) + (unsigned int)aDb[75];
+  }
+  if( nDb>=79 ){
+    dbOpt = ((unsigned int)aDb[76]<<24) + ((unsigned int)aDb[77]<<16) +
+            ((unsigned int)aDb[78]<<8) + (unsigned int)aDb[79];
+  }
+  nSql = (int)(nByte - iSql);
+  if( bScript ){
+    char zName[100];
+    sqlite3_snprintf(sizeof(zName),zName,"dbsql%06d.db",iSqlId);
+    renderDbSqlForCLI(stdout, zName, aDb, nDb,
+                      (unsigned char*)(aData+iSql), nSql);
+    sqlite3_free(aDb);
+    return 0;
+  }
+  if( eVerbosity>=3 ){
+    printf(
+      "****** %d-byte input, %d-byte database, %d-byte script "
+      "******\n", (int)nByte, nDb, nSql);
+    fflush(stdout);
+  }
+  rc = sqlite3_open(0, &cx.db);
+  if( rc ){
+    sqlite3_free(aDb);
+    return 1;
+  }
+  sqlite3_test_control(SQLITE_TESTCTRL_OPTIMIZATIONS, cx.db, dbOpt);
+  for(i=0; i<sizeof(aDbConfigSettings)/sizeof(aDbConfigSettings[0]); i++){
+    if( dbFlags & aDbConfigSettings[i].mask ){
+      toggleDbConfig(cx.db, aDbConfigSettings[i].iSetting);
+    }
+  }
+  if( bVdbeDebug ){
+    sqlite3_exec(cx.db, "PRAGMA vdbe_debug=ON", 0, 0, 0);
+  }
+
+  /* Invoke the progress handler frequently to check to see if we
+  ** are taking too long.  The progress handler will return true
+  ** (which will block further processing) if more than giTimeout seconds have
+  ** elapsed since the start of the test.
+  */
+  cx.iLastCb = timeOfDay();
+  cx.iCutoffTime = cx.iLastCb + (iTimeout<giTimeout ? iTimeout : giTimeout);
+  cx.mxCb = mxProgressCb;
+#ifndef SQLITE_OMIT_PROGRESS_CALLBACK
+  sqlite3_progress_handler(cx.db, 10, progress_handler, (void*)&cx);
+#endif
+
+  /* Set a limit on the maximum size of a prepared statement, and the
+  ** maximum length of a string or blob */
+  if( vdbeOpLimit>0 ){
+    sqlite3_limit(cx.db, SQLITE_LIMIT_VDBE_OP, vdbeOpLimit);
+  }
+  if( lengthLimit>0 ){
+    sqlite3_limit(cx.db, SQLITE_LIMIT_LENGTH, lengthLimit);
+  }
+  if( depthLimit>0 ){
+    sqlite3_limit(cx.db, SQLITE_LIMIT_EXPR_DEPTH, depthLimit);
+  }
+  sqlite3_limit(cx.db, SQLITE_LIMIT_LIKE_PATTERN_LENGTH, 100);
+  sqlite3_hard_heap_limit64(heapLimit);
+  rc = 1;
+  sqlite3_test_control(SQLITE_TESTCTRL_JSON_SELFCHECK, &rc);
+
+  if( nDb>=20 && aDb[18]==2 && aDb[19]==2 ){
+    aDb[18] = aDb[19] = 1;
+  }
+  rc = sqlite3_deserialize(cx.db, "main", aDb, nDb, nDb,
+          SQLITE_DESERIALIZE_RESIZEABLE |
+          SQLITE_DESERIALIZE_FREEONCLOSE);
+  if( rc ){
+    fprintf(stderr, "sqlite3_deserialize() failed with %d\n", rc);
+    goto testrun_finished;
+  }
+  if( maxDbSize>0 ){
+    sqlite3_int64 x = maxDbSize;
+    sqlite3_file_control(cx.db, "main", SQLITE_FCNTL_SIZE_LIMIT, &x);
+  }
+
+  /* For high debugging levels, turn on debug mode */
+  if( eVerbosity>=5 ){
+    sqlite3_exec(cx.db, "PRAGMA vdbe_debug=ON;", 0, 0, 0);
+  }
+
+  /* Block debug pragmas and ATTACH/DETACH.  But wait until after
+  ** deserialize to do this because deserialize depends on ATTACH */
+  sqlite3_set_authorizer(cx.db, block_troublesome_sql, &btsFlags);
+
+  /* Add the vt02 virtual table */
+  sqlite3_vt02_init(cx.db, 0, 0);
+
+  /* Activate extensions */
+  sqlite3_percentile_init(cx.db, 0, 0);
+  sqlite3_randomjson_init(cx.db, 0, 0);
+
+  /* Add support for sqlite_dbdata and sqlite_dbptr virtual tables used
+  ** by the recovery API */
+  sqlite3_dbdata_init(cx.db, 0, 0);
+
+  /* Consistent PRNG seed */
+#ifdef SQLITE_TESTCTRL_PRNG_SEED
+  sqlite3_table_column_metadata(cx.db, 0, "x", 0, 0, 0, 0, 0, 0);
+  sqlite3_test_control(SQLITE_TESTCTRL_PRNG_SEED, 1, cx.db);
+#else
+  sqlite3_randomness(0,0);
+#endif
+
+  /* Run recovery on the initial database, just to make sure recovery
+  ** works. */
+  if( !bNoRecover ){
+    recoverDatabase(cx.db);
+  }
+
+  zSql = sqlite3_malloc( nSql + 1 );
+  if( zSql==0 ){
+    fprintf(stderr, "Out of memory!\n");
+  }else{
+    memcpy(zSql, aData+iSql, nSql);
+    zSql[nSql] = 0;
+    for(i=j=0; zSql[i]; i++){
+      if( zSql[i]==';' ){
+        char cSaved = zSql[i+1];
+        zSql[i+1] = 0;
+        if( sqlite3_complete(zSql+j) ){
+          rc = runDbSql(cx.db, zSql+j, &btsFlags, dbOpt);
+          j = i+1;
+        }
+        zSql[i+1] = cSaved;
+        if( rc==SQLITE_INTERRUPT || progress_handler(&cx) ){
+          goto testrun_finished;
+        }
+      }
+    }
+    if( j<i ){
+      runDbSql(cx.db, zSql+j, &btsFlags, dbOpt);
+    }
+  }
+testrun_finished:
+  sqlite3_free(zSql);
+  rc = sqlite3_close(cx.db);
+  if( rc!=SQLITE_OK ){
+    fprintf(stdout, "sqlite3_close() returns %d\n", rc);
+  }
+  if( eVerbosity>=2 && !bScript ){
+    fprintf(stdout, "Peak memory usages: %f MB\n",
+       sqlite3_memory_highwater(1) / 1000000.0);
+  }
+  if( sqlite3_memory_used()!=0 ){
+    int nAlloc = 0;
+    int nNotUsed = 0;
+    sqlite3_status(SQLITE_STATUS_MALLOC_COUNT, &nAlloc, &nNotUsed, 0);
+    fprintf(stderr,"Memory leak: %lld bytes in %d allocations\n",
+            sqlite3_memory_used(), nAlloc);
+    exit(1);
+  }
+  sqlite3_hard_heap_limit64(0);
+  sqlite3_soft_heap_limit64(0);
+  return 0;
+}
+
+/*
+** END of the dbsqlfuzz code
+***************************************************************************/
+
+/* Look at a SQL text and try to determine if it begins with a database
+** description, such as would be found in a dbsqlfuzz test case.  Return
+** true if this does appear to be a dbsqlfuzz test case and false otherwise.
+*/
+static int isDbSql(unsigned char *a, int n){
+  unsigned char buf[12];
+  int i;
+  if( n>4 && memcmp(a,"\n--\n",4)==0 ) return 1;
+  while( n>0 && isspace(a[0]) ){ a++; n--; }
+  for(i=0; n>0 && i<8; n--, a++){
+    if( isxdigit(a[0]) ) buf[i++] = a[0];
+  }
+  if( i==8 && memcmp(buf,"53514c69",8)==0 ) return 1;
+  return 0;
+}
+
+/* Implementation of the isdbsql(TEXT) SQL function.
+*/
+static void isDbSqlFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  int n = sqlite3_value_bytes(argv[0]);
+  unsigned char *a = (unsigned char*)sqlite3_value_blob(argv[0]);
+  sqlite3_result_int(context, a!=0 && n>0 && isDbSql(a,n));
+}
+
+/* Methods for the VHandle object
+*/
+static int inmemClose(sqlite3_file *pFile){
+  VHandle *p = (VHandle*)pFile;
+  VFile *pVFile = p->pVFile;
+  pVFile->nRef--;
+  if( pVFile->nRef==0 && pVFile->zFilename==0 ){
+    pVFile->sz = -1;
+    free(pVFile->a);
+    pVFile->a = 0;
+  }
+  return SQLITE_OK;
+}
+static int inmemRead(
+  sqlite3_file *pFile,   /* Read from this open file */
+  void *pData,           /* Store content in this buffer */
+  int iAmt,              /* Bytes of content */
+  sqlite3_int64 iOfst    /* Start reading here */
+){
+  VHandle *pHandle = (VHandle*)pFile;
+  VFile *pVFile = pHandle->pVFile;
+  if( iOfst<0 || iOfst>=pVFile->sz ){
+    memset(pData, 0, iAmt);
+    return SQLITE_IOERR_SHORT_READ;
+  }
+  if( iOfst+iAmt>pVFile->sz ){
+    memset(pData, 0, iAmt);
+    iAmt = (int)(pVFile->sz - iOfst);
+    memcpy(pData, pVFile->a + iOfst, iAmt);
+    return SQLITE_IOERR_SHORT_READ;
+  }
+  memcpy(pData, pVFile->a + iOfst, iAmt);
+  return SQLITE_OK;
+}
+static int inmemWrite(
+  sqlite3_file *pFile,   /* Write to this file */
+  const void *pData,     /* Content to write */
+  int iAmt,              /* bytes to write */
+  sqlite3_int64 iOfst    /* Start writing here */
+){
+  VHandle *pHandle = (VHandle*)pFile;
+  VFile *pVFile = pHandle->pVFile;
+  if( iOfst+iAmt > pVFile->sz ){
+    if( iOfst+iAmt >= MX_FILE_SZ ){
+      return SQLITE_FULL;
+    }
+    pVFile->a = safe_realloc(pVFile->a, (int)(iOfst+iAmt));
+    if( iOfst > pVFile->sz ){
+      memset(pVFile->a + pVFile->sz, 0, (int)(iOfst - pVFile->sz));
+    }
+    pVFile->sz = (int)(iOfst + iAmt);
+  }
+  memcpy(pVFile->a + iOfst, pData, iAmt);
+  return SQLITE_OK;
+}
+static int inmemTruncate(sqlite3_file *pFile, sqlite3_int64 iSize){
+  VHandle *pHandle = (VHandle*)pFile;
+  VFile *pVFile = pHandle->pVFile;
+  if( pVFile->sz>iSize && iSize>=0 ) pVFile->sz = (int)iSize;
+  return SQLITE_OK;
+}
+static int inmemSync(sqlite3_file *pFile, int flags){
+  return SQLITE_OK;
+}
+static int inmemFileSize(sqlite3_file *pFile, sqlite3_int64 *pSize){
+  *pSize = ((VHandle*)pFile)->pVFile->sz;
+  return SQLITE_OK;
+}
+static int inmemLock(sqlite3_file *pFile, int type){
+  return SQLITE_OK;
+}
+static int inmemUnlock(sqlite3_file *pFile, int type){
+  return SQLITE_OK;
+}
+static int inmemCheckReservedLock(sqlite3_file *pFile, int *pOut){
+  *pOut = 0;
+  return SQLITE_OK;
+}
+static int inmemFileControl(sqlite3_file *pFile, int op, void *pArg){
+  return SQLITE_NOTFOUND;
+}
+static int inmemSectorSize(sqlite3_file *pFile){
+  return 512;
+}
+static int inmemDeviceCharacteristics(sqlite3_file *pFile){
+  return
+      SQLITE_IOCAP_SAFE_APPEND |
+      SQLITE_IOCAP_UNDELETABLE_WHEN_OPEN |
+      SQLITE_IOCAP_POWERSAFE_OVERWRITE;
+}
+
+
+/* Method table for VHandle
+*/
+static sqlite3_io_methods VHandleMethods = {
+  /* iVersion  */    1,
+  /* xClose    */    inmemClose,
+  /* xRead     */    inmemRead,
+  /* xWrite    */    inmemWrite,
+  /* xTruncate */    inmemTruncate,
+  /* xSync     */    inmemSync,
+  /* xFileSize */    inmemFileSize,
+  /* xLock     */    inmemLock,
+  /* xUnlock   */    inmemUnlock,
+  /* xCheck... */    inmemCheckReservedLock,
+  /* xFileCtrl */    inmemFileControl,
+  /* xSectorSz */    inmemSectorSize,
+  /* xDevchar  */    inmemDeviceCharacteristics,
+  /* xShmMap   */    0,
+  /* xShmLock  */    0,
+  /* xShmBarrier */  0,
+  /* xShmUnmap */    0,
+  /* xFetch    */    0,
+  /* xUnfetch  */    0
+};
+
+/*
+** Open a new file in the inmem VFS.  All files are anonymous and are
+** delete-on-close.
+*/
+static int inmemOpen(
+  sqlite3_vfs *pVfs,
+  const char *zFilename,
+  sqlite3_file *pFile,
+  int openFlags,
+  int *pOutFlags
+){
+  VFile *pVFile = createVFile(zFilename, 0, (unsigned char*)"");
+  VHandle *pHandle = (VHandle*)pFile;
+  if( pVFile==0 ){
+    return SQLITE_FULL;
+  }
+  pHandle->pVFile = pVFile;
+  pVFile->nRef++;
+  pFile->pMethods = &VHandleMethods;
+  if( pOutFlags ) *pOutFlags = openFlags;
+  return SQLITE_OK;
+}
+
+/*
+** Delete a file by name
+*/
+static int inmemDelete(
+  sqlite3_vfs *pVfs,
+  const char *zFilename,
+  int syncdir
+){
+  VFile *pVFile = findVFile(zFilename);
+  if( pVFile==0 ) return SQLITE_OK;
+  if( pVFile->nRef==0 ){
+    free(pVFile->zFilename);
+    pVFile->zFilename = 0;
+    pVFile->sz = -1;
+    free(pVFile->a);
+    pVFile->a = 0;
+    return SQLITE_OK;
+  }
+  return SQLITE_IOERR_DELETE;
+}
+
+/* Check for the existance of a file
+*/
+static int inmemAccess(
+  sqlite3_vfs *pVfs,
+  const char *zFilename,
+  int flags,
+  int *pResOut
+){
+  VFile *pVFile = findVFile(zFilename);
+  *pResOut =  pVFile!=0;
+  return SQLITE_OK;
+}
+
+/* Get the canonical pathname for a file
+*/
+static int inmemFullPathname(
+  sqlite3_vfs *pVfs,
+  const char *zFilename,
+  int nOut,
+  char *zOut
+){
+  sqlite3_snprintf(nOut, zOut, "%s", zFilename);
+  return SQLITE_OK;
+}
+
+/* Always use the same random see, for repeatability.
+*/
+static int inmemRandomness(sqlite3_vfs *NotUsed, int nBuf, char *zBuf){
+  memset(zBuf, 0, nBuf);
+  memcpy(zBuf, &g.uRandom, nBuf<sizeof(g.uRandom) ? nBuf : sizeof(g.uRandom));
+  return nBuf;
+}
+
+/*
+** Register the VFS that reads from the g.aFile[] set of files.
+*/
+static void inmemVfsRegister(int makeDefault){
+  static sqlite3_vfs inmemVfs;
+  sqlite3_vfs *pDefault = sqlite3_vfs_find(0);
+  inmemVfs.iVersion = 3;
+  inmemVfs.szOsFile = sizeof(VHandle);
+  inmemVfs.mxPathname = 200;
+  inmemVfs.zName = "inmem";
+  inmemVfs.xOpen = inmemOpen;
+  inmemVfs.xDelete = inmemDelete;
+  inmemVfs.xAccess = inmemAccess;
+  inmemVfs.xFullPathname = inmemFullPathname;
+  inmemVfs.xRandomness = inmemRandomness;
+  inmemVfs.xSleep = pDefault->xSleep;
+  inmemVfs.xCurrentTimeInt64 = pDefault->xCurrentTimeInt64;
+  sqlite3_vfs_register(&inmemVfs, makeDefault);
+};
+
+/*
+** Allowed values for the runFlags parameter to runSql()
+*/
+#define SQL_TRACE  0x0001     /* Print each SQL statement as it is prepared */
+#define SQL_OUTPUT 0x0002     /* Show the SQL output */
+
+/*
+** Run multiple commands of SQL.  Similar to sqlite3_exec(), but does not
+** stop if an error is encountered.
+*/
+static void runSql(sqlite3 *db, const char *zSql, unsigned  runFlags){
+  const char *zMore;
+  sqlite3_stmt *pStmt;
+
+  while( zSql && zSql[0] ){
+    zMore = 0;
+    pStmt = 0;
+    sqlite3_prepare_v2(db, zSql, -1, &pStmt, &zMore);
+    if( zMore==zSql ) break;
+    if( runFlags & SQL_TRACE ){
+      const char *z = zSql;
+      int n;
+      while( z<zMore && ISSPACE(z[0]) ) z++;
+      n = (int)(zMore - z);
+      while( n>0 && ISSPACE(z[n-1]) ) n--;
+      if( n==0 ) break;
+      if( pStmt==0 ){
+        printf("TRACE: %.*s (error: %s)\n", n, z, sqlite3_errmsg(db));
+      }else{
+        printf("TRACE: %.*s\n", n, z);
+      }
+    }
+    zSql = zMore;
+    if( pStmt ){
+      if( (runFlags & SQL_OUTPUT)==0 ){
+        while( SQLITE_ROW==sqlite3_step(pStmt) ){}
+      }else{
+        int nCol = -1;
+        while( SQLITE_ROW==sqlite3_step(pStmt) ){
+          int i;
+          if( nCol<0 ){
+            nCol = sqlite3_column_count(pStmt);
+          }else if( nCol>0 ){
+            printf("--------------------------------------------\n");
+          }
+          for(i=0; i<nCol; i++){
+            int eType = sqlite3_column_type(pStmt,i);
+            printf("%s = ", sqlite3_column_name(pStmt,i));
+            switch( eType ){
+              case SQLITE_NULL: {
+                printf("NULL\n");
+                break;
+              }
+              case SQLITE_INTEGER: {
+                printf("INT %s\n", sqlite3_column_text(pStmt,i));
+                break;
+              }
+              case SQLITE_FLOAT: {
+                printf("FLOAT %s\n", sqlite3_column_text(pStmt,i));
+                break;
+              }
+              case SQLITE_TEXT: {
+                printf("TEXT [%s]\n", sqlite3_column_text(pStmt,i));
+                break;
+              }
+              case SQLITE_BLOB: {
+                printf("BLOB (%d bytes)\n", sqlite3_column_bytes(pStmt,i));
+                break;
+              }
+            }
+          }
+        }
+      }         
+      sqlite3_finalize(pStmt);
+    }
+  }
+}
+
+/*
+** Rebuild the database file.
+**
+**    (1)  Remove duplicate entries
+**    (2)  Put all entries in order
+**    (3)  Vacuum
+*/
+static void rebuild_database(sqlite3 *db, int dbSqlOnly){
+  int rc;
+  char *zSql;
+  zSql = sqlite3_mprintf(
+     "BEGIN;\n"
+     "CREATE TEMP TABLE dbx AS SELECT DISTINCT dbcontent FROM db;\n"
+     "DELETE FROM db;\n"
+     "INSERT INTO db(dbid, dbcontent) "
+        " SELECT NULL, dbcontent FROM dbx ORDER BY 2;\n"
+     "DROP TABLE dbx;\n"
+     "CREATE TEMP TABLE sx AS SELECT DISTINCT sqltext FROM xsql %s;\n"
+     "DELETE FROM xsql;\n"
+     "INSERT INTO xsql(sqlid,sqltext) "
+        " SELECT NULL, sqltext FROM sx ORDER BY 2;\n"
+     "DROP TABLE sx;\n"
+     "COMMIT;\n"
+     "PRAGMA page_size=1024;\n"
+     "VACUUM;\n",
+     dbSqlOnly ? " WHERE isdbsql(sqltext)" : ""
+  );
+  rc = sqlite3_exec(db, zSql, 0, 0, 0);
+  sqlite3_free(zSql);
+  if( rc ) fatalError("cannot rebuild: %s", sqlite3_errmsg(db));
+}
+
+/*
+** Return the value of a hexadecimal digit.  Return -1 if the input
+** is not a hex digit.
+*/
+static int hexDigitValue(char c){
+  if( c>='0' && c<='9' ) return c - '0';
+  if( c>='a' && c<='f' ) return c - 'a' + 10;
+  if( c>='A' && c<='F' ) return c - 'A' + 10;
+  return -1;
+}
+
+/*
+** Interpret zArg as an integer value, possibly with suffixes.
+*/
+static int integerValue(const char *zArg){
+  sqlite3_int64 v = 0;
+  static const struct { char *zSuffix; int iMult; } aMult[] = {
+    { "KiB", 1024 },
+    { "MiB", 1024*1024 },
+    { "GiB", 1024*1024*1024 },
+    { "KB",  1000 },
+    { "MB",  1000000 },
+    { "GB",  1000000000 },
+    { "K",   1000 },
+    { "M",   1000000 },
+    { "G",   1000000000 },
+  };
+  int i;
+  int isNeg = 0;
+  if( zArg[0]=='-' ){
+    isNeg = 1;
+    zArg++;
+  }else if( zArg[0]=='+' ){
+    zArg++;
+  }
+  if( zArg[0]=='0' && zArg[1]=='x' ){
+    int x;
+    zArg += 2;
+    while( (x = hexDigitValue(zArg[0]))>=0 ){
+      v = (v<<4) + x;
+      zArg++;
+    }
+  }else{
+    while( ISDIGIT(zArg[0]) ){
+      v = v*10 + zArg[0] - '0';
+      zArg++;
+    }
+  }
+  for(i=0; i<sizeof(aMult)/sizeof(aMult[0]); i++){
+    if( sqlite3_stricmp(aMult[i].zSuffix, zArg)==0 ){
+      v *= aMult[i].iMult;
+      break;
+    }
+  }
+  if( v>0x7fffffff ) fatalError("parameter too large - max 2147483648");
+  return (int)(isNeg? -v : v);
+}
+
+/*
+** Return the number of "v" characters in a string.  Return 0 if there
+** are any characters in the string other than "v".
+*/
+static int numberOfVChar(const char *z){
+  int N = 0;
+  while( z[0] && z[0]=='v' ){
+    z++;
+    N++;
+  }
+  return z[0]==0 ? N : 0;
+}
+
+/*
+** Print sketchy documentation for this utility program
+*/
+static void showHelp(void){
+  printf("Usage: %s [options] SOURCE-DB ?ARGS...?\n", g.zArgv0);
+  printf(
+"Read databases and SQL scripts from SOURCE-DB and execute each script against\n"
+"each database, checking for crashes and memory leaks.\n"
+"Options:\n"
+"  --cell-size-check    Set the PRAGMA cell_size_check=ON\n"
+"  --dbid N             Use only the database where dbid=N\n"
+"  --export-db DIR      Write databases to files(s) in DIR. Works with --dbid\n"
+"  --export-sql DIR     Write SQL to file(s) in DIR. Also works with --sqlid\n"
+"  --help               Show this help text\n"
+"  --info               Show information about SOURCE-DB w/o running tests\n"
+"  --limit-depth N      Limit expression depth to N.  Default: 500\n"
+"  --limit-heap N       Limit heap memory to N.  Default: 100M\n"
+"  --limit-mem N        Limit memory used by test SQLite instance to N bytes\n"
+"  --limit-vdbe         Panic if any test runs for more than 100,000 cycles\n"
+"  --load-sql   FILE..  Load SQL scripts fron files into SOURCE-DB\n"
+"  --load-db    FILE..  Load template databases from files into SOURCE_DB\n"
+"  --load-dbsql FILE..  Load dbsqlfuzz outputs into the xsql table\n"
+"               ^^^^------ Use \"-\" for FILE to read filenames from stdin\n"
+"  -m TEXT              Add a description to the database\n"
+"  --native-vfs         Use the native VFS for initially empty database files\n"
+"  --native-malloc      Turn off MEMSYS3/5 and Lookaside\n"
+"  --no-recover         Do not run recovery on dbsqlfuzz databases\n"
+"  --oss-fuzz           Enable OSS-FUZZ testing\n"
+"  --prng-seed N        Seed value for the PRGN inside of SQLite\n"
+"  -q|--quiet           Reduced output\n"
+"  --rebuild            Rebuild and vacuum the database file\n"
+"  --result-trace       Show the results of each SQL command\n"
+"  --script             Output CLI script instead of running tests\n"
+"  --skip N             Skip the first N test cases\n"
+"  --spinner            Use a spinner to show progress\n"
+"  --sqlid N            Use only SQL where sqlid=N\n"
+"  --timeout N          Maximum time for any one test in N millseconds\n"
+"  -v|--verbose         Increased output.  Repeat for more output.\n"
+"  --vdbe-debug         Activate VDBE debugging.\n"
+"  --wait N             Wait N seconds before continuing - useful for\n"
+"                          attaching an MSVC debugging.\n"
+  );
+}
+
+int main(int argc, char **argv){
+  sqlite3_int64 iBegin;        /* Start time of this program */
+  int quietFlag = 0;           /* True if --quiet or -q */
+  int verboseFlag = 0;         /* True if --verbose or -v */
+  char *zInsSql = 0;           /* SQL statement for --load-db or --load-sql */
+  int iFirstInsArg = 0;        /* First argv[] for --load-db or --load-sql */
+  sqlite3 *db = 0;             /* The open database connection */
+  sqlite3_stmt *pStmt;         /* A prepared statement */
+  int rc;                      /* Result code from SQLite interface calls */
+  Blob *pSql;                  /* For looping over SQL scripts */
+  Blob *pDb;                   /* For looping over template databases */
+  int i;                       /* Loop index for the argv[] loop */
+  int dbSqlOnly = 0;           /* Only use scripts that are dbsqlfuzz */
+  int onlySqlid = -1;          /* --sqlid */
+  int onlyDbid = -1;           /* --dbid */
+  int nativeFlag = 0;          /* --native-vfs */
+  int rebuildFlag = 0;         /* --rebuild */
+  int vdbeLimitFlag = 0;       /* --limit-vdbe */
+  int infoFlag = 0;            /* --info */
+  int nSkip = 0;               /* --skip */
+  int bScript = 0;             /* --script */
+  int bSpinner = 0;            /* True for --spinner */
+  int timeoutTest = 0;         /* undocumented --timeout-test flag */
+  int runFlags = 0;            /* Flags sent to runSql() */
+  char *zMsg = 0;              /* Add this message */
+  int nSrcDb = 0;              /* Number of source databases */
+  char **azSrcDb = 0;          /* Array of source database names */
+  int iSrcDb;                  /* Loop over all source databases */
+  int nTest = 0;               /* Total number of tests performed */
+  char *zDbName = "";          /* Appreviated name of a source database */
+  const char *zFailCode = 0;   /* Value of the TEST_FAILURE env variable */
+  int cellSzCkFlag = 0;        /* --cell-size-check */
+  int sqlFuzz = 0;             /* True for SQL fuzz. False for DB fuzz */
+  int iTimeout = 120000;       /* Default 120-second timeout */
+  int nMem = 0;                /* Memory limit override */
+  int nMemThisDb = 0;          /* Memory limit set by the CONFIG table */
+  char *zExpDb = 0;            /* Write Databases to files in this directory */
+  char *zExpSql = 0;           /* Write SQL to files in this directory */
+  void *pHeap = 0;             /* Heap for use by SQLite */
+  int ossFuzz = 0;             /* enable OSS-FUZZ testing */
+  int ossFuzzThisDb = 0;       /* ossFuzz value for this particular database */
+  int nativeMalloc = 0;        /* Turn off MEMSYS3/5 and lookaside if true */
+  sqlite3_vfs *pDfltVfs;       /* The default VFS */
+  int openFlags4Data;          /* Flags for sqlite3_open_v2() */
+  int bTimer = 0;              /* Show elapse time for each test */
+  int nV;                      /* How much to increase verbosity with -vvvv */
+  sqlite3_int64 tmStart;       /* Start of each test */
+  int iEstTime = 0;            /* LPF for the time-to-go */
+
+  sqlite3_config(SQLITE_CONFIG_URI,1);
+  registerOomSimulator();
+  sqlite3_initialize();
+  iBegin = timeOfDay();
+#ifdef __unix__
+  signal(SIGALRM, signalHandler);
+  signal(SIGSEGV, signalHandler);
+  signal(SIGABRT, signalHandler);
+#endif
+  g.zArgv0 = argv[0];
+  openFlags4Data = SQLITE_OPEN_READONLY;
+  zFailCode = getenv("TEST_FAILURE");
+  pDfltVfs = sqlite3_vfs_find(0);
+  inmemVfsRegister(1);
+  for(i=1; i<argc; i++){
+    const char *z = argv[i];
+    if( z[0]=='-' ){
+      z++;
+      if( z[0]=='-' ) z++;
+      if( strcmp(z,"cell-size-check")==0 ){
+        cellSzCkFlag = 1;
+      }else
+      if( strcmp(z,"dbid")==0 ){
+        if( i>=argc-1 ) fatalError("missing arguments on %s", argv[i]);
+        onlyDbid = integerValue(argv[++i]);
+      }else
+      if( strcmp(z,"export-db")==0 ){
+        if( i>=argc-1 ) fatalError("missing arguments on %s", argv[i]);
+        zExpDb = argv[++i];
+      }else
+      if( strcmp(z,"export-sql")==0 || strcmp(z,"export-dbsql")==0 ){
+        if( i>=argc-1 ) fatalError("missing arguments on %s", argv[i]);
+        zExpSql = argv[++i];
+      }else
+      if( strcmp(z,"help")==0 ){
+        showHelp();
+        return 0;
+      }else
+      if( strcmp(z,"info")==0 ){
+        infoFlag = 1;
+      }else
+      if( strcmp(z,"limit-depth")==0 ){
+        if( i>=argc-1 ) fatalError("missing arguments on %s", argv[i]);
+        depthLimit = integerValue(argv[++i]);
+      }else
+      if( strcmp(z,"limit-heap")==0 ){
+        if( i>=argc-1 ) fatalError("missing arguments on %s", argv[i]);
+        heapLimit = integerValue(argv[++i]);
+      }else
+      if( strcmp(z,"limit-mem")==0 ){
+        if( i>=argc-1 ) fatalError("missing arguments on %s", argv[i]);
+        nMem = integerValue(argv[++i]);
+      }else
+      if( strcmp(z,"limit-vdbe")==0 ){
+        vdbeLimitFlag = 1;
+      }else
+      if( strcmp(z,"load-sql")==0 ){
+        zInsSql = "INSERT INTO xsql(sqltext)"
+                  "VALUES(CAST(readtextfile(?1) AS text))";
+        iFirstInsArg = i+1;
+        openFlags4Data = SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE;
+        break;
+      }else
+      if( strcmp(z,"load-db")==0 ){
+        zInsSql = "INSERT INTO db(dbcontent) VALUES(readfile(?1))";
+        iFirstInsArg = i+1;
+        openFlags4Data = SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE;
+        break;
+      }else
+      if( strcmp(z,"load-dbsql")==0 ){
+        zInsSql = "INSERT INTO xsql(sqltext)"
+                  "VALUES(readfile(?1))";
+        iFirstInsArg = i+1;
+        openFlags4Data = SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE;
+        dbSqlOnly = 1;
+        break;
+      }else
+      if( strcmp(z,"m")==0 ){
+        if( i>=argc-1 ) fatalError("missing arguments on %s", argv[i]);
+        zMsg = argv[++i];
+        openFlags4Data = SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE;
+      }else
+      if( strcmp(z,"native-malloc")==0 ){
+        nativeMalloc = 1;
+      }else
+      if( strcmp(z,"native-vfs")==0 ){
+        nativeFlag = 1;
+      }else
+      if( strcmp(z,"no-recover")==0 ){
+        bNoRecover = 1;
+      }else
+      if( strcmp(z,"oss-fuzz")==0 ){
+        ossFuzz = 1;
+      }else
+      if( strcmp(z,"prng-seed")==0 ){
+        if( i>=argc-1 ) fatalError("missing arguments on %s", argv[i]);
+        g.uRandom = atoi(argv[++i]);
+      }else
+      if( strcmp(z,"quiet")==0 || strcmp(z,"q")==0 ){
+        quietFlag = 1;
+        verboseFlag = 0;
+        eVerbosity = 0;
+      }else
+      if( strcmp(z,"rebuild")==0 ){
+        rebuildFlag = 1;
+        openFlags4Data = SQLITE_OPEN_READWRITE;
+      }else
+      if( strcmp(z,"result-trace")==0 ){
+        runFlags |= SQL_OUTPUT;
+      }else
+      if( strcmp(z,"script")==0 ){
+        bScript = 1;
+      }else
+      if( strcmp(z,"skip")==0 ){
+        if( i>=argc-1 ) fatalError("missing arguments on %s", argv[i]);
+        nSkip = atoi(argv[++i]);
+      }else
+      if( strcmp(z,"spinner")==0 ){
+        bSpinner = 1;
+      }else
+      if( strcmp(z,"timer")==0 ){
+        bTimer = 1;
+      }else
+      if( strcmp(z,"sqlid")==0 ){
+        if( i>=argc-1 ) fatalError("missing arguments on %s", argv[i]);
+        onlySqlid = integerValue(argv[++i]);
+      }else
+      if( strcmp(z,"timeout")==0 ){
+        if( i>=argc-1 ) fatalError("missing arguments on %s", argv[i]);
+        iTimeout = integerValue(argv[++i]);
+      }else
+      if( strcmp(z,"timeout-test")==0 ){
+        timeoutTest = 1;
+#ifndef __unix__
+        fatalError("timeout is not available on non-unix systems");
+#endif
+      }else
+      if( strcmp(z,"vdbe-debug")==0 ){
+        bVdbeDebug = 1;
+      }else
+      if( strcmp(z,"verbose")==0 ){
+        quietFlag = 0;
+        verboseFlag++;
+        eVerbosity++;
+        if( verboseFlag>2 ) runFlags |= SQL_TRACE;
+      }else
+      if( (nV = numberOfVChar(z))>=1 ){
+        quietFlag = 0;
+        verboseFlag += nV;
+        eVerbosity += nV;
+        if( verboseFlag>2 ) runFlags |= SQL_TRACE;
+      }else
+      if( strcmp(z,"version")==0 ){
+        int ii;
+        const char *zz;
+        printf("SQLite %s %s (%d-bit)\n",
+            sqlite3_libversion(), sqlite3_sourceid(),
+            8*(int)sizeof(char*));
+        for(ii=0; (zz = sqlite3_compileoption_get(ii))!=0; ii++){
+          printf("%s\n", zz);
+        }
+        return 0;
+      }else
+      if( strcmp(z,"wait")==0 ){
+        int iDelay;
+        if( i>=argc-1 ) fatalError("missing arguments on %s", argv[i]);
+        iDelay = integerValue(argv[++i]);
+        printf("Waiting %d seconds:", iDelay);
+        fflush(stdout);
+        while( 1 /*exit-by-break*/ ){
+          sqlite3_sleep(1000);
+          iDelay--;
+          if( iDelay<=0 ) break;
+          printf(" %d", iDelay);
+          fflush(stdout);
+        }
+        printf("\n");
+        fflush(stdout);
+      }else
+      if( strcmp(z,"is-dbsql")==0 ){
+        i++;
+        for(i++; i<argc; i++){
+          long nData;
+          char *aData = readFile(argv[i], &nData);
+          printf("%d %s\n", isDbSql((unsigned char*)aData,nData), argv[i]);
+          sqlite3_free(aData);
+        }
+        exit(0);
+      }else
+      {
+        fatalError("unknown option: %s", argv[i]);
+      }
+    }else{
+      nSrcDb++;
+      azSrcDb = safe_realloc(azSrcDb, nSrcDb*sizeof(azSrcDb[0]));
+      azSrcDb[nSrcDb-1] = argv[i];
+    }
+  }
+  if( nSrcDb==0 ) fatalError("no source database specified");
+  if( nSrcDb>1 ){
+    if( zMsg ){
+      fatalError("cannot change the description of more than one database");
+    }
+    if( zInsSql ){
+      fatalError("cannot import into more than one database");
+    }
+  }
+
+  /* Process each source database separately */
+  for(iSrcDb=0; iSrcDb<nSrcDb; iSrcDb++){
+    char *zRawData = 0;
+    long nRawData = 0;
+    g.zDbFile = azSrcDb[iSrcDb];
+    rc = sqlite3_open_v2(azSrcDb[iSrcDb], &db,
+                         openFlags4Data, pDfltVfs->zName);
+    if( rc==SQLITE_OK ){
+      rc = sqlite3_exec(db, "SELECT count(*) FROM sqlite_schema", 0, 0, 0);
+    }
+    if( rc ){
+      sqlite3_close(db);
+      zRawData = readFile(azSrcDb[iSrcDb], &nRawData);
+      if( zRawData==0 ){
+        fatalError("input file \"%s\" is not recognized\n", azSrcDb[iSrcDb]);
+      }
+      sqlite3_open(":memory:", &db);
+    }
+
+    /* Print the description, if there is one */
+    if( infoFlag ){
+      int n;
+      zDbName = azSrcDb[iSrcDb];
+      i = (int)strlen(zDbName) - 1;
+      while( i>0 && zDbName[i-1]!='/' && zDbName[i-1]!='\\' ){ i--; }
+      zDbName += i;
+      sqlite3_prepare_v2(db, "SELECT msg FROM readme", -1, &pStmt, 0);
+      if( pStmt && sqlite3_step(pStmt)==SQLITE_ROW ){
+        printf("%s: %s", zDbName, sqlite3_column_text(pStmt,0));
+      }else{
+        printf("%s: (empty \"readme\")", zDbName);
+      }
+      sqlite3_finalize(pStmt);
+      sqlite3_prepare_v2(db, "SELECT count(*) FROM db", -1, &pStmt, 0);
+      if( pStmt
+       && sqlite3_step(pStmt)==SQLITE_ROW
+       && (n = sqlite3_column_int(pStmt,0))>0
+      ){
+        printf(" - %d DBs", n);
+      }
+      sqlite3_finalize(pStmt);
+      sqlite3_prepare_v2(db, "SELECT count(*) FROM xsql", -1, &pStmt, 0);
+      if( pStmt
+       && sqlite3_step(pStmt)==SQLITE_ROW
+       && (n = sqlite3_column_int(pStmt,0))>0
+      ){
+        printf(" - %d scripts", n);
+      }
+      sqlite3_finalize(pStmt);
+      printf("\n");
+      sqlite3_close(db);
+      sqlite3_free(zRawData);
+      continue;
+    }
+
+    rc = sqlite3_exec(db,
+       "CREATE TABLE IF NOT EXISTS db(\n"
+       "  dbid INTEGER PRIMARY KEY, -- database id\n"
+       "  dbcontent BLOB            -- database disk file image\n"
+       ");\n"
+       "CREATE TABLE IF NOT EXISTS xsql(\n"
+       "  sqlid INTEGER PRIMARY KEY,   -- SQL script id\n"
+       "  sqltext TEXT                 -- Text of SQL statements to run\n"
+       ");"
+       "CREATE TABLE IF NOT EXISTS readme(\n"
+       "  msg TEXT -- Human-readable description of this file\n"
+       ");", 0, 0, 0);
+    if( rc ) fatalError("cannot create schema: %s", sqlite3_errmsg(db));
+    if( zMsg ){
+      char *zSql;
+      zSql = sqlite3_mprintf(
+               "DELETE FROM readme; INSERT INTO readme(msg) VALUES(%Q)", zMsg);
+      rc = sqlite3_exec(db, zSql, 0, 0, 0);
+      sqlite3_free(zSql);
+      if( rc ) fatalError("cannot change description: %s", sqlite3_errmsg(db));
+    }
+    if( zRawData ){
+      zInsSql = "INSERT INTO xsql(sqltext) VALUES(?1)";
+      rc = sqlite3_prepare_v2(db, zInsSql, -1, &pStmt, 0);
+      if( rc ) fatalError("cannot prepare statement [%s]: %s",
+                          zInsSql, sqlite3_errmsg(db));
+      sqlite3_bind_text(pStmt, 1, zRawData, nRawData, SQLITE_STATIC);
+      sqlite3_step(pStmt);
+      rc = sqlite3_reset(pStmt);
+      if( rc ) fatalError("insert failed for %s", argv[i]);
+      sqlite3_finalize(pStmt);
+      rebuild_database(db, dbSqlOnly);
+      zInsSql = 0;
+      sqlite3_free(zRawData);
+      zRawData = 0;
+    }
+    ossFuzzThisDb = ossFuzz;
+
+    /* If the CONFIG(name,value) table exists, read db-specific settings
+    ** from that table */
+    if( sqlite3_table_column_metadata(db,0,"config",0,0,0,0,0,0)==SQLITE_OK ){
+      rc = sqlite3_prepare_v2(db, "SELECT name, value FROM config",
+                                  -1, &pStmt, 0);
+      if( rc ) fatalError("cannot prepare query of CONFIG table: %s",
+                          sqlite3_errmsg(db));
+      while( SQLITE_ROW==sqlite3_step(pStmt) ){
+        const char *zName = (const char *)sqlite3_column_text(pStmt,0);
+        if( zName==0 ) continue;
+        if( strcmp(zName, "oss-fuzz")==0 ){
+          ossFuzzThisDb = sqlite3_column_int(pStmt,1);
+          if( verboseFlag>1 ) printf("Config: oss-fuzz=%d\n", ossFuzzThisDb);
+        }
+        if( strcmp(zName, "limit-mem")==0 ){
+          nMemThisDb = sqlite3_column_int(pStmt,1);
+          if( verboseFlag>1 ) printf("Config: limit-mem=%d\n", nMemThisDb);
+        }
+      }
+      sqlite3_finalize(pStmt);
+    }
+
+    if( zInsSql ){
+      sqlite3_create_function(db, "readfile", 1, SQLITE_UTF8, 0,
+                              readfileFunc, 0, 0);
+      sqlite3_create_function(db, "readtextfile", 1, SQLITE_UTF8, 0,
+                              readtextfileFunc, 0, 0);
+      sqlite3_create_function(db, "isdbsql", 1, SQLITE_UTF8, 0,
+                              isDbSqlFunc, 0, 0);
+      rc = sqlite3_prepare_v2(db, zInsSql, -1, &pStmt, 0);
+      if( rc ) fatalError("cannot prepare statement [%s]: %s",
+                          zInsSql, sqlite3_errmsg(db));
+      rc = sqlite3_exec(db, "BEGIN", 0, 0, 0);
+      if( rc ) fatalError("cannot start a transaction");
+      for(i=iFirstInsArg; i<argc; i++){
+        if( strcmp(argv[i],"-")==0 ){
+          /* A filename of "-" means read multiple filenames from stdin */
+          char zLine[2000];
+          while( rc==0 && fgets(zLine,sizeof(zLine),stdin)!=0 ){
+            size_t kk = strlen(zLine);
+            while( kk>0 && zLine[kk-1]<=' ' ) kk--;
+            sqlite3_bind_text(pStmt, 1, zLine, (int)kk, SQLITE_STATIC);
+            if( verboseFlag>1 ) printf("loading %.*s\n", (int)kk, zLine);
+            sqlite3_step(pStmt);
+            rc = sqlite3_reset(pStmt);
+            if( rc ) fatalError("insert failed for %s", zLine);
+          }
+        }else{
+          sqlite3_bind_text(pStmt, 1, argv[i], -1, SQLITE_STATIC);
+          if( verboseFlag>1 ) printf("loading %s\n", argv[i]);
+          sqlite3_step(pStmt);
+          rc = sqlite3_reset(pStmt);
+          if( rc ) fatalError("insert failed for %s", argv[i]);
+        }
+      }
+      sqlite3_finalize(pStmt);
+      rc = sqlite3_exec(db, "COMMIT", 0, 0, 0);
+      if( rc ) fatalError("cannot commit the transaction: %s",
+                          sqlite3_errmsg(db));
+      rebuild_database(db, dbSqlOnly);
+      sqlite3_close(db);
+      return 0;
+    }
+    rc = sqlite3_exec(db, "PRAGMA query_only=1;", 0, 0, 0);
+    if( rc ) fatalError("cannot set database to query-only");
+    if( zExpDb!=0 || zExpSql!=0 ){
+      sqlite3_create_function(db, "writefile", 2, SQLITE_UTF8, 0,
+                              writefileFunc, 0, 0);
+      if( zExpDb!=0 ){
+        const char *zExDb = 
+          "SELECT writefile(printf('%s/db%06d.db',?1,dbid),dbcontent),"
+          "       dbid, printf('%s/db%06d.db',?1,dbid), length(dbcontent)"
+          "  FROM db WHERE ?2<0 OR dbid=?2;";
+        rc = sqlite3_prepare_v2(db, zExDb, -1, &pStmt, 0);
+        if( rc ) fatalError("cannot prepare statement [%s]: %s",
+                            zExDb, sqlite3_errmsg(db));
+        sqlite3_bind_text64(pStmt, 1, zExpDb, strlen(zExpDb),
+                            SQLITE_STATIC, SQLITE_UTF8);
+        sqlite3_bind_int(pStmt, 2, onlyDbid);
+        while( sqlite3_step(pStmt)==SQLITE_ROW ){
+          printf("write db-%d (%d bytes) into %s\n",
+             sqlite3_column_int(pStmt,1),
+             sqlite3_column_int(pStmt,3),
+             sqlite3_column_text(pStmt,2));
+        }
+        sqlite3_finalize(pStmt);
+      }
+      if( zExpSql!=0 ){
+        const char *zExSql = 
+          "SELECT writefile(printf('%s/sql%06d.txt',?1,sqlid),sqltext),"
+          "       sqlid, printf('%s/sql%06d.txt',?1,sqlid), length(sqltext)"
+          "  FROM xsql WHERE ?2<0 OR sqlid=?2;";
+        rc = sqlite3_prepare_v2(db, zExSql, -1, &pStmt, 0);
+        if( rc ) fatalError("cannot prepare statement [%s]: %s",
+                            zExSql, sqlite3_errmsg(db));
+        sqlite3_bind_text64(pStmt, 1, zExpSql, strlen(zExpSql),
+                            SQLITE_STATIC, SQLITE_UTF8);
+        sqlite3_bind_int(pStmt, 2, onlySqlid);
+        while( sqlite3_step(pStmt)==SQLITE_ROW ){
+          printf("write sql-%d (%d bytes) into %s\n",
+             sqlite3_column_int(pStmt,1),
+             sqlite3_column_int(pStmt,3),
+             sqlite3_column_text(pStmt,2));
+        }
+        sqlite3_finalize(pStmt);
+      }
+      sqlite3_close(db);
+      return 0;
+    }
+  
+    /* Load all SQL script content and all initial database images from the
+    ** source db
+    */
+    blobListLoadFromDb(db, "SELECT sqlid, sqltext FROM xsql", onlySqlid,
+                           &g.nSql, &g.pFirstSql);
+    if( g.nSql==0 ) fatalError("need at least one SQL script");
+    blobListLoadFromDb(db, "SELECT dbid, dbcontent FROM db", onlyDbid,
+                       &g.nDb, &g.pFirstDb);
+    if( g.nDb==0 ){
+      g.pFirstDb = safe_realloc(0, sizeof(Blob));
+      memset(g.pFirstDb, 0, sizeof(Blob));
+      g.pFirstDb->id = 1;
+      g.pFirstDb->seq = 0;
+      g.nDb = 1;
+      sqlFuzz = 1;
+    }
+  
+    /* Print the description, if there is one */
+    if( !quietFlag && !bScript ){
+      zDbName = azSrcDb[iSrcDb];
+      i = (int)strlen(zDbName) - 1;
+      while( i>0 && zDbName[i-1]!='/' && zDbName[i-1]!='\\' ){ i--; }
+      zDbName += i;
+      if( verboseFlag ){
+        sqlite3_prepare_v2(db, "SELECT msg FROM readme", -1, &pStmt, 0);
+        if( pStmt && sqlite3_step(pStmt)==SQLITE_ROW ){
+          printf("%s: %s\n", zDbName, sqlite3_column_text(pStmt,0));
+        }
+        sqlite3_finalize(pStmt);
+      }
+    }
+
+    /* Rebuild the database, if requested */
+    if( rebuildFlag ){
+      if( !quietFlag ){
+        printf("%s: rebuilding... ", zDbName);
+        fflush(stdout);
+      }
+      rebuild_database(db, 0);
+      if( !quietFlag ) printf("done\n");
+    }
+  
+    /* Close the source database.  Verify that no SQLite memory allocations are
+    ** outstanding.
+    */
+    sqlite3_close(db);
+    if( sqlite3_memory_used()>0 ){
+      fatalError("SQLite has memory in use before the start of testing");
+    }
+
+    /* Limit available memory, if requested */
+    sqlite3_shutdown();
+
+    if( nMemThisDb>0 && nMem==0 ){
+      if( !nativeMalloc ){
+        pHeap = realloc(pHeap, nMemThisDb);
+        if( pHeap==0 ){
+          fatalError("failed to allocate %d bytes of heap memory", nMem);
+        }
+        sqlite3_config(SQLITE_CONFIG_HEAP, pHeap, nMemThisDb, 128);
+      }else{
+        sqlite3_hard_heap_limit64((sqlite3_int64)nMemThisDb);
+      }
+    }else{
+      sqlite3_hard_heap_limit64(0);
+    }
+
+    /* Disable lookaside with the --native-malloc option */
+    if( nativeMalloc ){
+      sqlite3_config(SQLITE_CONFIG_LOOKASIDE, 0, 0);
+    }
+  
+    /* Reset the in-memory virtual filesystem */
+    formatVfs();
+    
+    /* Run a test using each SQL script against each database.
+    */
+    if( verboseFlag<2 && !quietFlag && !bSpinner && !bScript ){
+      printf("%s:", zDbName);
+    }
+    for(pSql=g.pFirstSql; pSql; pSql=pSql->pNext){
+      tmStart = timeOfDay();
+      if( isDbSql(pSql->a, pSql->sz) ){
+        sqlite3_snprintf(sizeof(g.zTestName), g.zTestName, "sqlid=%d",pSql->id);
+        if( bScript ){
+          /* No progress output */
+        }else if( bSpinner ){
+          int nTotal = g.nSql;
+          int idx = pSql->seq;
+          if( nSrcDb==1 && nTotal>idx && idx>=20 ){
+            int iToGo = (timeOfDay() - iBegin)*(nTotal-idx)/(idx*1000);
+            int hr, min, sec;
+            if( idx==20 ){
+              iEstTime = iToGo;
+            }else{
+              iEstTime = (iToGo + 7*iEstTime)/8;
+            }
+            hr = iEstTime/3600;
+            min = (iEstTime/60)%60;
+            sec = iEstTime%60;
+            if( hr>0 ){
+              printf("\r%s: %d/%d ETC %d:%02d:%02d  ",
+                     zDbName, idx, nTotal, hr, min, sec);
+            }else{
+              printf("\r%s: %d/%d ETC %02d:%02d    ",
+                     zDbName, idx, nTotal, min, sec);
+            }
+          }else{  
+            printf("\r%s: %d/%d           ", zDbName, idx, nTotal);
+          }
+          fflush(stdout);
+        }else if( verboseFlag>1 ){
+          printf("%s\n", g.zTestName);
+          fflush(stdout);
+        }else if( !quietFlag ){
+          static int prevAmt = -1;
+          int idx = pSql->seq;
+          int amt = idx*10/(g.nSql);
+          if( amt!=prevAmt ){
+            printf(" %d%%", amt*10);
+            fflush(stdout);
+            prevAmt = amt;
+          }
+        }
+        if( nSkip>0 ){
+          nSkip--;
+        }else{
+          runCombinedDbSqlInput(pSql->a, pSql->sz, iTimeout, bScript, pSql->id);
+        }
+        nTest++;
+        if( bTimer && !bScript ){
+          sqlite3_int64 tmEnd = timeOfDay();
+          printf("%lld %s\n", tmEnd - tmStart, g.zTestName);
+        }
+        g.zTestName[0] = 0;
+        disableOom();
+        continue;
+      }
+      for(pDb=g.pFirstDb; pDb; pDb=pDb->pNext){
+        int openFlags;
+        const char *zVfs = "inmem";
+        sqlite3_snprintf(sizeof(g.zTestName), g.zTestName, "sqlid=%d,dbid=%d",
+                         pSql->id, pDb->id);
+        if( bScript ){
+          /* No progress output */
+        }else if( bSpinner ){
+          int nTotal = g.nDb*g.nSql;
+          int idx = pSql->seq*g.nDb + pDb->id - 1;
+          printf("\r%s: %d/%d            ", zDbName, idx, nTotal);
+          fflush(stdout);
+        }else if( verboseFlag>1 ){
+          printf("%s\n", g.zTestName);
+          fflush(stdout);
+        }else if( !quietFlag ){
+          static int prevAmt = -1;
+          int idx = pSql->seq*g.nDb + pDb->id - 1;
+          int amt = idx*10/(g.nDb*g.nSql);
+          if( amt!=prevAmt ){
+            printf(" %d%%", amt*10);
+            fflush(stdout);
+            prevAmt = amt;
+          }
+        }
+        if( nSkip>0 ){
+          nSkip--;
+          continue;
+        }
+        if( bScript ){
+          char zName[100];
+          sqlite3_snprintf(sizeof(zName), zName, "db%06d.db", 
+                           pDb->id>1 ? pDb->id : pSql->id);
+          renderDbSqlForCLI(stdout, zName,
+             pDb->a, pDb->sz, pSql->a, pSql->sz);
+          continue;
+        }
+        createVFile("main.db", pDb->sz, pDb->a);
+        sqlite3_randomness(0,0);
+        if( ossFuzzThisDb ){
+#ifndef SQLITE_OSS_FUZZ
+          fatalError("--oss-fuzz not supported: recompile"
+                     " with -DSQLITE_OSS_FUZZ");
+#else
+          extern int LLVMFuzzerTestOneInput(const uint8_t*, size_t);
+          LLVMFuzzerTestOneInput((const uint8_t*)pSql->a, (size_t)pSql->sz);
+#endif
+        }else{
+          openFlags = SQLITE_OPEN_CREATE | SQLITE_OPEN_READWRITE;
+          if( nativeFlag && pDb->sz==0 ){
+            openFlags |= SQLITE_OPEN_MEMORY;
+            zVfs = 0;
+          }
+          rc = sqlite3_open_v2("main.db", &db, openFlags, zVfs);
+          if( rc ) fatalError("cannot open inmem database");
+          sqlite3_limit(db, SQLITE_LIMIT_LENGTH, 100000000);
+          sqlite3_limit(db, SQLITE_LIMIT_LIKE_PATTERN_LENGTH, 50);
+          if( cellSzCkFlag ) runSql(db, "PRAGMA cell_size_check=ON", runFlags);
+          setAlarm((iTimeout+999)/1000);
+          /* Enable test functions */
+          sqlite3_test_control(SQLITE_TESTCTRL_INTERNAL_FUNCTIONS, db);
+#ifndef SQLITE_OMIT_PROGRESS_CALLBACK
+          if( sqlFuzz || vdbeLimitFlag ){
+            sqlite3_progress_handler(db, 100000, progressHandler,
+                                     &vdbeLimitFlag);
+          }
+#endif
+#ifdef SQLITE_TESTCTRL_PRNG_SEED
+          sqlite3_test_control(SQLITE_TESTCTRL_PRNG_SEED, 1, db);
+#endif
+          if( bVdbeDebug ){
+            sqlite3_exec(db, "PRAGMA vdbe_debug=ON", 0, 0, 0);
+          }
+          do{
+            runSql(db, (char*)pSql->a, runFlags);
+          }while( timeoutTest );
+          setAlarm(0);
+          sqlite3_exec(db, "PRAGMA temp_store_directory=''", 0, 0, 0);
+          sqlite3_close(db);
+        }
+        if( sqlite3_memory_used()>0 ){
+           fatalError("memory leak: %lld bytes outstanding",
+                      sqlite3_memory_used());
+        }
+        reformatVfs();
+        nTest++;
+        if( bTimer ){
+          sqlite3_int64 tmEnd = timeOfDay();
+          printf("%lld %s\n", tmEnd - tmStart, g.zTestName);
+        }
+        g.zTestName[0] = 0;
+
+        /* Simulate an error if the TEST_FAILURE environment variable is "5".
+        ** This is used to verify that automated test script really do spot
+        ** errors that occur in this test program.
+        */
+        if( zFailCode ){
+          if( zFailCode[0]=='5' && zFailCode[1]==0 ){
+            fatalError("simulated failure");
+          }else if( zFailCode[0]!=0 ){
+            /* If TEST_FAILURE is something other than 5, just exit the test
+            ** early */
+            printf("\nExit early due to TEST_FAILURE being set\n");
+            iSrcDb = nSrcDb-1;
+            goto sourcedb_cleanup;
+          }
+        }
+      }
+    }
+    if( bScript ){
+      /* No progress output */
+    }else if( bSpinner ){
+      int nTotal = g.nDb*g.nSql;
+      printf("\r%s: %d/%d          \n", zDbName, nTotal, nTotal);
+    }else if( !quietFlag && verboseFlag<2 ){
+      printf(" 100%% - %d tests\n", g.nDb*g.nSql);
+    }
+  
+    /* Clean up at the end of processing a single source database
+    */
+  sourcedb_cleanup:
+    blobListFree(g.pFirstSql);
+    blobListFree(g.pFirstDb);
+    reformatVfs();
+ 
+  } /* End loop over all source databases */
+
+  if( !quietFlag && !bScript ){
+    sqlite3_int64 iElapse = timeOfDay() - iBegin;
+    if( g.nInvariant ){
+      printf("fuzzcheck: %u query invariants checked\n", g.nInvariant);
+    }
+    printf("fuzzcheck: 0 errors out of %d tests in %d.%03d seconds\n"
+           "SQLite %s %s (%d-bit)\n",
+           nTest, (int)(iElapse/1000), (int)(iElapse%1000),
+           sqlite3_libversion(), sqlite3_sourceid(),
+           8*(int)sizeof(char*));
+  }
+  free(azSrcDb);
+  free(pHeap);
+  return 0;
+}
diff --git a/test/fuzzdata1.db b/test/fuzzdata1.db
new file mode 100644
index 0000000000000000000000000000000000000000..11a9174b2de4d3e2e15e12ae40e0b356a383c004
Binary files /dev/null and b/test/fuzzdata1.db differ
diff --git a/test/fuzzdata2.db b/test/fuzzdata2.db
new file mode 100644
index 0000000000000000000000000000000000000000..76827900465ceda18fe65359d402bb8d771cac72
Binary files /dev/null and b/test/fuzzdata2.db differ
diff --git a/test/fuzzdata3.db b/test/fuzzdata3.db
new file mode 100644
index 0000000000000000000000000000000000000000..0a41fd6e37ba0b794372b5a6389978ac57664bf0
Binary files /dev/null and b/test/fuzzdata3.db differ
diff --git a/test/fuzzdata4.db b/test/fuzzdata4.db
new file mode 100644
index 0000000000000000000000000000000000000000..254bf834ffca4c1a018cd61e7662e9c5748d9230
Binary files /dev/null and b/test/fuzzdata4.db differ
diff --git a/test/fuzzdata5.db b/test/fuzzdata5.db
new file mode 100644
index 0000000000000000000000000000000000000000..cfb0ebe7d8cf01899814f38e21c30b62acd9184c
Binary files /dev/null and b/test/fuzzdata5.db differ
diff --git a/test/fuzzdata6.db b/test/fuzzdata6.db
new file mode 100644
index 0000000000000000000000000000000000000000..67076d0026aca74aa3984260ecd3371006966501
Binary files /dev/null and b/test/fuzzdata6.db differ
diff --git a/test/fuzzdata7.db b/test/fuzzdata7.db
new file mode 100644
index 0000000000000000000000000000000000000000..99daab109293d39651b2a0c9c4e9ce5d898023cc
Binary files /dev/null and b/test/fuzzdata7.db differ
diff --git a/test/fuzzdata8.db b/test/fuzzdata8.db
new file mode 100644
index 0000000000000000000000000000000000000000..3e34180071ede5e023878d8528fe65a8fd9d24b9
Binary files /dev/null and b/test/fuzzdata8.db differ
diff --git a/test/fuzzer1.test b/test/fuzzer1.test
new file mode 100644
index 0000000000000000000000000000000000000000..5e361e9df0e220875816ae5a532676bcccfeb629
--- /dev/null
+++ b/test/fuzzer1.test
@@ -0,0 +1,1820 @@
+# 2011 March 25
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for TCL interface to the
+# SQLite library. 
+#
+# The focus of the tests is the word-fuzzer virtual table.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+set ::testprefix fuzzer1
+load_static_extension db fuzzer
+
+# Check configuration errors.
+#
+do_catchsql_test fuzzer1-1.1 {
+  CREATE VIRTUAL TABLE f USING fuzzer;
+} {1 {fuzzer: wrong number of CREATE VIRTUAL TABLE arguments}}
+
+do_catchsql_test fuzzer1-1.2 {
+  CREATE VIRTUAL TABLE f USING fuzzer(one, two);
+} {1 {fuzzer: wrong number of CREATE VIRTUAL TABLE arguments}}
+
+do_catchsql_test fuzzer1-1.3 {
+  CREATE VIRTUAL TABLE f USING fuzzer(nosuchtable);
+} {1 {fuzzer: no such table: main.nosuchtable}}
+
+do_catchsql_test fuzzer1-1.4 {
+  CREATE TEMP TABLE nosuchtable(a, b, c, d);
+  CREATE VIRTUAL TABLE f USING fuzzer(nosuchtable);
+} {1 {fuzzer: no such table: main.nosuchtable}}
+
+do_catchsql_test fuzzer1-1.5 {
+  DROP TABLE temp.nosuchtable;
+  CREATE TABLE nosuchtable(a, b, c, d);
+  CREATE VIRTUAL TABLE temp.f USING fuzzer(nosuchtable);
+} {1 {fuzzer: no such table: temp.nosuchtable}}
+
+do_catchsql_test fuzzer1-1.6 {
+  DROP TABLE IF EXISTS f_rules;
+  CREATE TABLE f_rules(a, b, c);
+  CREATE VIRTUAL TABLE f USING fuzzer(f_rules);
+} {1 {fuzzer: f_rules has 3 columns, expected 4}}
+
+do_catchsql_test fuzzer1-1.7 {
+  DROP TABLE IF EXISTS f_rules;
+  CREATE TABLE f_rules(a, b, c, d, e);
+  CREATE VIRTUAL TABLE f USING fuzzer(f_rules);
+} {1 {fuzzer: f_rules has 5 columns, expected 4}}
+
+
+do_execsql_test fuzzer1-2.1 {
+  CREATE TABLE f1_rules(ruleset DEFAULT 0, cfrom, cto, cost);
+  INSERT INTO f1_rules(cfrom, cto, cost) VALUES('e','a',1);
+  INSERT INTO f1_rules(cfrom, cto, cost) VALUES('a','e',10);
+  INSERT INTO f1_rules(cfrom, cto, cost) VALUES('e','o',100);
+
+  CREATE VIRTUAL TABLE f1 USING fuzzer(f1_rules);
+} {}
+
+do_execsql_test fuzzer1-2.1 {
+    SELECT word, distance FROM f1 WHERE word MATCH 'abcde'
+} {
+  abcde 0   abcda 1   ebcde 10 
+  ebcda 11  abcdo 100 ebcdo 110 
+  obcde 110 obcda 111 obcdo 210
+}
+
+do_execsql_test fuzzer1-2.4 {
+  INSERT INTO f1_rules(ruleset, cfrom, cto, cost) VALUES(1,'b','x',1);
+  INSERT INTO f1_rules(ruleset, cfrom, cto, cost) VALUES(1,'d','y',10);
+  INSERT INTO f1_rules(ruleset, cfrom, cto, cost) VALUES(1,'y','z',100);
+
+  DROP TABLE f1;
+  CREATE VIRTUAL TABLE f1 USING fuzzer(f1_rules);
+} {}
+
+do_execsql_test fuzzer1-2.5 {
+  SELECT word, distance FROM f1 WHERE word MATCH 'abcde'
+} {
+  abcde 0   abcda 1   ebcde 10 
+  ebcda 11  abcdo 100 ebcdo 110 
+  obcde 110 obcda 111 obcdo 210
+}
+
+do_execsql_test fuzzer1-2.6 {
+  SELECT word, distance FROM f1 WHERE word MATCH 'abcde' AND ruleset=0
+} {
+  abcde 0   abcda 1   ebcde 10 
+  ebcda 11  abcdo 100 ebcdo 110 
+  obcde 110 obcda 111 obcdo 210
+}
+
+do_execsql_test fuzzer1-2.7 {
+  SELECT word, distance FROM f1 WHERE word MATCH 'abcde' AND ruleset=1
+} {
+  abcde 0 axcde 1 abcye 10 
+  axcye 11 abcze 110 axcze 111
+}
+
+do_test fuzzer1-1.8 {
+  db eval {
+    SELECT word, distance FROM f1 WHERE word MATCH 'abcde' AND distance<100
+  }
+} {abcde 0 abcda 1 ebcde 10 ebcda 11}
+do_test fuzzer1-1.9 {
+  db eval {
+    SELECT word, distance FROM f1 WHERE word MATCH 'abcde' AND distance<=100
+  }
+} {abcde 0 abcda 1 ebcde 10 ebcda 11 abcdo 100}
+do_test fuzzer1-1.10 {
+  db eval {
+    SELECT word, distance FROM f1
+     WHERE word MATCH 'abcde' AND distance<100 AND ruleset=0
+  }
+} {abcde 0 abcda 1 ebcde 10 ebcda 11}
+do_test fuzzer1-1.11 {
+  db eval {
+    SELECT word, distance FROM f1
+    WHERE word MATCH 'abcde' AND distance<=100 AND ruleset=0
+  }
+} {abcde 0 abcda 1 ebcde 10 ebcda 11 abcdo 100}
+do_test fuzzer1-1.12 {
+  db eval {
+    SELECT word, distance FROM f1
+     WHERE word MATCH 'abcde' AND distance<11 AND ruleset=1
+  }
+} {abcde 0 axcde 1 abcye 10}
+do_test fuzzer1-1.13 {
+  db eval {
+    SELECT word, distance FROM f1
+    WHERE word MATCH 'abcde' AND distance<=11 AND ruleset=1
+  }
+} {abcde 0 axcde 1 abcye 10 axcye 11}
+do_test fuzzer1-1.14 {
+  catchsql {INSERT INTO f1 VALUES(1)}
+} {1 {table f1 may not be modified}}
+do_test fuzzer1-1.15 {
+  catchsql {DELETE FROM f1}
+} {1 {table f1 may not be modified}}
+do_test fuzzer1-1.16 {
+  catchsql {UPDATE f1 SET rowid=rowid+10000}
+} {1 {table f1 may not be modified}}
+
+
+do_test fuzzer1-2.0 {
+  execsql {
+    -- costs based on English letter frequencies
+    CREATE TEMP TABLE f2_rules(ruleset DEFAULT 0, cFrom, cTo, cost);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('a','e',24);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('a','o',47);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('a','u',50);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('e','a',23);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('e','i',33);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('e','o',37);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('i','e',33);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('i','y',33);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('o','a',41);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('o','e',46);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('o','u',57);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('u','o',58);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('y','i',33);
+
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('t','th',70);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('th','t',66);
+ 
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('a','',84);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('','b',106);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('b','',106);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('','c',94);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('c','',94);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('','d',89);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('d','',89);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('','e',83);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('e','',83);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('','f',97);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('f','',97);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('','g',99);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('g','',99);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('','h',86);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('h','',86);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('','i',85);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('i','',85);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('','j',120);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('j','',120);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('','k',120);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('k','',120);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('','l',89);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('l','',89);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('','m',96);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('m','',96);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('','n',85);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('n','',85);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('','o',85);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('o','',85);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('','p',100);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('p','',100);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('','q',120);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('q','',120);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('','r',86);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('r','',86);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('','s',86);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('s','',86);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('','t',84);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('t','',84);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('','u',94);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('u','',94);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('','v',120);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('v','',120);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('','w',96);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('w','',96);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('','x',120);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('x','',120);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('','y',100);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('y','',100);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('','z',120);
+    INSERT INTO f2_rules(cFrom,cTo,cost) VALUES('z','',120);
+    INSERT INTO f2_rules(ruleset,cFrom,cTo,cost)
+      SELECT 1, cFrom, cTo, 100 FROM f2_rules WHERE ruleset=0;
+    INSERT INTO f2_rules(ruleset,cFrom,cTo,cost)
+      SELECT 2, cFrom, cTo, 200-cost FROM f2_rules WHERE ruleset=0;
+    INSERT INTO f2_rules(ruleset,cFrom,cTo,cost)
+      SELECT 3, cFrom, cTo, cost FROM f2_rules WHERE ruleset=0;
+    INSERT INTO f2_rules(ruleset,cFrom,cTo,cost)
+      VALUES(3, 'mallard','duck',50),
+            (3, 'duck', 'mallard', 50),
+            (3, 'rock', 'stone', 50),
+            (3, 'stone', 'rock', 50);
+
+
+    CREATE VIRTUAL TABLE temp.f2 USING fuzzer(f2_rules);
+
+    -- Street names for the 28269 ZIPCODE.
+    --
+    CREATE TEMP TABLE streetname(n TEXT UNIQUE);
+    INSERT INTO streetname VALUES('abbotsinch');
+    INSERT INTO streetname VALUES('abbottsgate');
+    INSERT INTO streetname VALUES('abbywood');
+    INSERT INTO streetname VALUES('abner');
+    INSERT INTO streetname VALUES('acacia ridge');
+    INSERT INTO streetname VALUES('acorn creek');
+    INSERT INTO streetname VALUES('acorn forest');
+    INSERT INTO streetname VALUES('adel');
+    INSERT INTO streetname VALUES('ainslie');
+    INSERT INTO streetname VALUES('airways');
+    INSERT INTO streetname VALUES('alabaster');
+    INSERT INTO streetname VALUES('alba');
+    INSERT INTO streetname VALUES('albertine');
+    INSERT INTO streetname VALUES('alden glen');
+    INSERT INTO streetname VALUES('alderson');
+    INSERT INTO streetname VALUES('allen');
+    INSERT INTO streetname VALUES('allen a brown');
+    INSERT INTO streetname VALUES('allness glen');
+    INSERT INTO streetname VALUES('aloysia');
+    INSERT INTO streetname VALUES('alpine');
+    INSERT INTO streetname VALUES('alwyn');
+    INSERT INTO streetname VALUES('amaranthus');
+    INSERT INTO streetname VALUES('amber glen');
+    INSERT INTO streetname VALUES('amber leigh way');
+    INSERT INTO streetname VALUES('amber meadows');
+    INSERT INTO streetname VALUES('amberway');
+    INSERT INTO streetname VALUES('ame');
+    INSERT INTO streetname VALUES('amesbury hill');
+    INSERT INTO streetname VALUES('anderson');
+    INSERT INTO streetname VALUES('andrew thomas');
+    INSERT INTO streetname VALUES('anduin falls');
+    INSERT INTO streetname VALUES('ankeny');
+    INSERT INTO streetname VALUES('annandale');
+    INSERT INTO streetname VALUES('annbick');
+    INSERT INTO streetname VALUES('antelope');
+    INSERT INTO streetname VALUES('anzack');
+    INSERT INTO streetname VALUES('apple glen');
+    INSERT INTO streetname VALUES('applevalley');
+    INSERT INTO streetname VALUES('appley mead');
+    INSERT INTO streetname VALUES('aragorn');
+    INSERT INTO streetname VALUES('arbor creek');
+    INSERT INTO streetname VALUES('arbor day');
+    INSERT INTO streetname VALUES('arbor meadows');
+    INSERT INTO streetname VALUES('arbor spring');
+    INSERT INTO streetname VALUES('arborview');
+    INSERT INTO streetname VALUES('arklow');
+    INSERT INTO streetname VALUES('armitage');
+    INSERT INTO streetname VALUES('arvin');
+    INSERT INTO streetname VALUES('ash cove');
+    INSERT INTO streetname VALUES('ashford leigh');
+    INSERT INTO streetname VALUES('ashmont');
+    INSERT INTO streetname VALUES('atlas');
+    INSERT INTO streetname VALUES('atwater');
+    INSERT INTO streetname VALUES('auburn hill');
+    INSERT INTO streetname VALUES('aulton link');
+    INSERT INTO streetname VALUES('austin dekota');
+    INSERT INTO streetname VALUES('austin knoll');
+    INSERT INTO streetname VALUES('auten');
+    INSERT INTO streetname VALUES('autumn harvest');
+    INSERT INTO streetname VALUES('autumn oak');
+    INSERT INTO streetname VALUES('autumn ridge');
+    INSERT INTO streetname VALUES('avalon forest');
+    INSERT INTO streetname VALUES('avalon loop');
+    INSERT INTO streetname VALUES('avon farm');
+    INSERT INTO streetname VALUES('avonhurst');
+    INSERT INTO streetname VALUES('avonlea');
+    INSERT INTO streetname VALUES('aynrand');
+    INSERT INTO streetname VALUES('azure valley');
+    INSERT INTO streetname VALUES('baberton');
+    INSERT INTO streetname VALUES('baffin');
+    INSERT INTO streetname VALUES('baggins');
+    INSERT INTO streetname VALUES('balata');
+    INSERT INTO streetname VALUES('ballantray');
+    INSERT INTO streetname VALUES('ballston');
+    INSERT INTO streetname VALUES('balsam tree');
+    INSERT INTO streetname VALUES('bambi');
+    INSERT INTO streetname VALUES('banwell');
+    INSERT INTO streetname VALUES('barbee');
+    INSERT INTO streetname VALUES('barefoot forest');
+    INSERT INTO streetname VALUES('barnview');
+    INSERT INTO streetname VALUES('baroda');
+    INSERT INTO streetname VALUES('barson');
+    INSERT INTO streetname VALUES('baskerville');
+    INSERT INTO streetname VALUES('battle creek');
+    INSERT INTO streetname VALUES('baucom');
+    INSERT INTO streetname VALUES('bay pines');
+    INSERT INTO streetname VALUES('beaker');
+    INSERT INTO streetname VALUES('beard');
+    INSERT INTO streetname VALUES('beardsley');
+    INSERT INTO streetname VALUES('bearoak');
+    INSERT INTO streetname VALUES('beauvista');
+    INSERT INTO streetname VALUES('beaver creek');
+    INSERT INTO streetname VALUES('beaver hollow');
+    INSERT INTO streetname VALUES('bedlington');
+    INSERT INTO streetname VALUES('beech cove');
+    INSERT INTO streetname VALUES('beech crest');
+    INSERT INTO streetname VALUES('beith');
+    INSERT INTO streetname VALUES('bell glen');
+    INSERT INTO streetname VALUES('bellmore');
+    INSERT INTO streetname VALUES('bells mill');
+    INSERT INTO streetname VALUES('bellville');
+    INSERT INTO streetname VALUES('belmar place');
+    INSERT INTO streetname VALUES('bembridge');
+    INSERT INTO streetname VALUES('bennett neely');
+    INSERT INTO streetname VALUES('bentgrass run');
+    INSERT INTO streetname VALUES('benthaven');
+    INSERT INTO streetname VALUES('bernardy');
+    INSERT INTO streetname VALUES('bernbrook shadow');
+    INSERT INTO streetname VALUES('berrybrook');
+    INSERT INTO streetname VALUES('berrybush');
+    INSERT INTO streetname VALUES('berwick');
+    INSERT INTO streetname VALUES('betterton');
+    INSERT INTO streetname VALUES('bickham');
+    INSERT INTO streetname VALUES('billingham');
+    INSERT INTO streetname VALUES('birchcroft');
+    INSERT INTO streetname VALUES('birchstone');
+    INSERT INTO streetname VALUES('birdwell');
+    INSERT INTO streetname VALUES('bisaner');
+    INSERT INTO streetname VALUES('bitterbush');
+    INSERT INTO streetname VALUES('bitterroot');
+    INSERT INTO streetname VALUES('black fox');
+    INSERT INTO streetname VALUES('black maple');
+    INSERT INTO streetname VALUES('black trail');
+    INSERT INTO streetname VALUES('blackbird');
+    INSERT INTO streetname VALUES('blake a dare');
+    INSERT INTO streetname VALUES('blasdell');
+    INSERT INTO streetname VALUES('blue aster');
+    INSERT INTO streetname VALUES('blue finch');
+    INSERT INTO streetname VALUES('blue lilac');
+    INSERT INTO streetname VALUES('blue sky');
+    INSERT INTO streetname VALUES('blue tick');
+    INSERT INTO streetname VALUES('bob beatty');
+    INSERT INTO streetname VALUES('bobcat');
+    INSERT INTO streetname VALUES('bolton');
+    INSERT INTO streetname VALUES('boomerang');
+    INSERT INTO streetname VALUES('boulder');
+    INSERT INTO streetname VALUES('boxer');
+    INSERT INTO streetname VALUES('boxmeer');
+    INSERT INTO streetname VALUES('brachnell view');
+    INSERT INTO streetname VALUES('bradford lake');
+    INSERT INTO streetname VALUES('bradwell');
+    INSERT INTO streetname VALUES('brady');
+    INSERT INTO streetname VALUES('braids bend');
+    INSERT INTO streetname VALUES('bralers');
+    INSERT INTO streetname VALUES('brandie glen');
+    INSERT INTO streetname VALUES('brandy ridge');
+    INSERT INTO streetname VALUES('brandybuck');
+    INSERT INTO streetname VALUES('branthurst');
+    INSERT INTO streetname VALUES('brassy creek');
+    INSERT INTO streetname VALUES('brathay');
+    INSERT INTO streetname VALUES('brawer farm');
+    INSERT INTO streetname VALUES('breezy morn');
+    INSERT INTO streetname VALUES('brenda');
+    INSERT INTO streetname VALUES('brenly');
+    INSERT INTO streetname VALUES('brenock');
+    INSERT INTO streetname VALUES('brianwood');
+    INSERT INTO streetname VALUES('briar rose');
+    INSERT INTO streetname VALUES('briarcrest');
+    INSERT INTO streetname VALUES('briarthorne');
+    INSERT INTO streetname VALUES('brick dust');
+    INSERT INTO streetname VALUES('bridgepath');
+    INSERT INTO streetname VALUES('bridle ridge');
+    INSERT INTO streetname VALUES('briggs');
+    INSERT INTO streetname VALUES('brightleaf');
+    INSERT INTO streetname VALUES('brigstock');
+    INSERT INTO streetname VALUES('broad ridge');
+    INSERT INTO streetname VALUES('brock');
+    INSERT INTO streetname VALUES('brockhampton');
+    INSERT INTO streetname VALUES('broken pine');
+    INSERT INTO streetname VALUES('brompton');
+    INSERT INTO streetname VALUES('brook falls');
+    INSERT INTO streetname VALUES('brookings');
+    INSERT INTO streetname VALUES('browne');
+    INSERT INTO streetname VALUES('brownes creek');
+    INSERT INTO streetname VALUES('brownes ferry');
+    INSERT INTO streetname VALUES('brownestone view');
+    INSERT INTO streetname VALUES('brumit');
+    INSERT INTO streetname VALUES('bryn athyn');
+    INSERT INTO streetname VALUES('buck');
+    INSERT INTO streetname VALUES('bucklebury');
+    INSERT INTO streetname VALUES('buckminister');
+    INSERT INTO streetname VALUES('buckspring');
+    INSERT INTO streetname VALUES('burch');
+    INSERT INTO streetname VALUES('burch shire');
+    INSERT INTO streetname VALUES('burkston');
+    INSERT INTO streetname VALUES('burmith');
+    INSERT INTO streetname VALUES('burnaby');
+    INSERT INTO streetname VALUES('butterfly');
+    INSERT INTO streetname VALUES('cabin creek');
+    INSERT INTO streetname VALUES('cairns mill');
+    INSERT INTO streetname VALUES('callender');
+    INSERT INTO streetname VALUES('cambellton');
+    INSERT INTO streetname VALUES('cambridge bay');
+    INSERT INTO streetname VALUES('canary');
+    INSERT INTO streetname VALUES('canbury');
+    INSERT INTO streetname VALUES('candle leaf');
+    INSERT INTO streetname VALUES('canipe');
+    INSERT INTO streetname VALUES('canipe farm');
+    INSERT INTO streetname VALUES('cannon');
+    INSERT INTO streetname VALUES('canopy');
+    INSERT INTO streetname VALUES('canso');
+    INSERT INTO streetname VALUES('canterbrook');
+    INSERT INTO streetname VALUES('cardinal glen');
+    INSERT INTO streetname VALUES('cardinal point');
+    INSERT INTO streetname VALUES('cardinals nest');
+    INSERT INTO streetname VALUES('carlota');
+    INSERT INTO streetname VALUES('carmathen');
+    INSERT INTO streetname VALUES('carver');
+    INSERT INTO streetname VALUES('carver pond');
+    INSERT INTO streetname VALUES('casa loma');
+    INSERT INTO streetname VALUES('caselton');
+    INSERT INTO streetname VALUES('castello');
+    INSERT INTO streetname VALUES('castle ridge');
+    INSERT INTO streetname VALUES('castleglen');
+    INSERT INTO streetname VALUES('castlemaine');
+    INSERT INTO streetname VALUES('cavett');
+    INSERT INTO streetname VALUES('caymus');
+    INSERT INTO streetname VALUES('cedardale ridge');
+    INSERT INTO streetname VALUES('cedarhurst');
+    INSERT INTO streetname VALUES('cemkey way');
+    INSERT INTO streetname VALUES('cerise');
+    INSERT INTO streetname VALUES('chaceview');
+    INSERT INTO streetname VALUES('chadsworth');
+    INSERT INTO streetname VALUES('chadwell');
+    INSERT INTO streetname VALUES('champions crest');
+    INSERT INTO streetname VALUES('chandler haven');
+    INSERT INTO streetname VALUES('chapel crossing');
+    INSERT INTO streetname VALUES('chapel ridge');
+    INSERT INTO streetname VALUES('charles crawford');
+    INSERT INTO streetname VALUES('charminster');
+    INSERT INTO streetname VALUES('chasewind');
+    INSERT INTO streetname VALUES('chavel');
+    INSERT INTO streetname VALUES('chelsea jade');
+    INSERT INTO streetname VALUES('chestnut knoll');
+    INSERT INTO streetname VALUES('cheviot');
+    INSERT INTO streetname VALUES('chickadee');
+    INSERT INTO streetname VALUES('chidley');
+    INSERT INTO streetname VALUES('chimney ridge');
+    INSERT INTO streetname VALUES('chimney springs');
+    INSERT INTO streetname VALUES('chinaberry');
+    INSERT INTO streetname VALUES('chinemist');
+    INSERT INTO streetname VALUES('chinquapin');
+    INSERT INTO streetname VALUES('chiswell');
+    INSERT INTO streetname VALUES('christenbury');
+    INSERT INTO streetname VALUES('christenbury hills');
+    INSERT INTO streetname VALUES('churchill');
+    INSERT INTO streetname VALUES('cindy');
+    INSERT INTO streetname VALUES('cinnamon teal');
+    INSERT INTO streetname VALUES('citadel');
+    INSERT INTO streetname VALUES('clare olivia');
+    INSERT INTO streetname VALUES('clarke creek');
+    INSERT INTO streetname VALUES('clarke ridge');
+    INSERT INTO streetname VALUES('clear day');
+    INSERT INTO streetname VALUES('clear stream');
+    INSERT INTO streetname VALUES('cleve brown');
+    INSERT INTO streetname VALUES('cliff cameron');
+    INSERT INTO streetname VALUES('cliffvale');
+    INSERT INTO streetname VALUES('cloverside');
+    INSERT INTO streetname VALUES('clymer');
+    INSERT INTO streetname VALUES('coatbridge');
+    INSERT INTO streetname VALUES('cobble glen');
+    INSERT INTO streetname VALUES('cochran farm');
+    INSERT INTO streetname VALUES('cochrane');
+    INSERT INTO streetname VALUES('coleridge');
+    INSERT INTO streetname VALUES('coleshire');
+    INSERT INTO streetname VALUES('collins');
+    INSERT INTO streetname VALUES('colvard');
+    INSERT INTO streetname VALUES('colvard park');
+    INSERT INTO streetname VALUES('condor');
+    INSERT INTO streetname VALUES('conner ridge');
+    INSERT INTO streetname VALUES('connery');
+    INSERT INTO streetname VALUES('cooper run');
+    INSERT INTO streetname VALUES('coopers ridge');
+    INSERT INTO streetname VALUES('copper hill');
+    INSERT INTO streetname VALUES('coppermine');
+    INSERT INTO streetname VALUES('cornelia');
+    INSERT INTO streetname VALUES('corner');
+    INSERT INTO streetname VALUES('cornerstone');
+    INSERT INTO streetname VALUES('cottage oaks');
+    INSERT INTO streetname VALUES('cougar');
+    INSERT INTO streetname VALUES('coves end');
+    INSERT INTO streetname VALUES('cragland');
+    INSERT INTO streetname VALUES('crail');
+    INSERT INTO streetname VALUES('cranberry nook');
+    INSERT INTO streetname VALUES('crawford brook');
+    INSERT INTO streetname VALUES('crayton');
+    INSERT INTO streetname VALUES('creek breeze');
+    INSERT INTO streetname VALUES('crescent ridge');
+    INSERT INTO streetname VALUES('crescent view');
+    INSERT INTO streetname VALUES('cresta');
+    INSERT INTO streetname VALUES('crestfield');
+    INSERT INTO streetname VALUES('crestland');
+    INSERT INTO streetname VALUES('crestwick');
+    INSERT INTO streetname VALUES('crisfield');
+    INSERT INTO streetname VALUES('crisp wood');
+    INSERT INTO streetname VALUES('croft haven');
+    INSERT INTO streetname VALUES('crofton springs');
+    INSERT INTO streetname VALUES('cross');
+    INSERT INTO streetname VALUES('crosspoint center');
+    INSERT INTO streetname VALUES('crownvista');
+    INSERT INTO streetname VALUES('crystal arms');
+    INSERT INTO streetname VALUES('crystal crest');
+    INSERT INTO streetname VALUES('crystal leaf');
+    INSERT INTO streetname VALUES('cunningham park');
+    INSERT INTO streetname VALUES('cypress pond');
+    INSERT INTO streetname VALUES('daffodil');
+    INSERT INTO streetname VALUES('daisyfield');
+    INSERT INTO streetname VALUES('dalecrest');
+    INSERT INTO streetname VALUES('dannelly park');
+    INSERT INTO streetname VALUES('daphne');
+    INSERT INTO streetname VALUES('daria');
+    INSERT INTO streetname VALUES('dartmouth');
+    INSERT INTO streetname VALUES('datha');
+    INSERT INTO streetname VALUES('david cox');
+    INSERT INTO streetname VALUES('davis');
+    INSERT INTO streetname VALUES('davis crossing');
+    INSERT INTO streetname VALUES('davis lake');
+    INSERT INTO streetname VALUES('davis ridge');
+    INSERT INTO streetname VALUES('dawnmist');
+    INSERT INTO streetname VALUES('daybreak');
+    INSERT INTO streetname VALUES('dearmon');
+    INSERT INTO streetname VALUES('dearview');
+    INSERT INTO streetname VALUES('deaton hill');
+    INSERT INTO streetname VALUES('deer cross');
+    INSERT INTO streetname VALUES('deerton');
+    INSERT INTO streetname VALUES('degrasse');
+    INSERT INTO streetname VALUES('delamere');
+    INSERT INTO streetname VALUES('dellfield');
+    INSERT INTO streetname VALUES('dellinger');
+    INSERT INTO streetname VALUES('demington');
+    INSERT INTO streetname VALUES('denmeade');
+    INSERT INTO streetname VALUES('derita');
+    INSERT INTO streetname VALUES('derita woods');
+    INSERT INTO streetname VALUES('deruyter');
+    INSERT INTO streetname VALUES('dervish');
+    INSERT INTO streetname VALUES('devas');
+    INSERT INTO streetname VALUES('devon croft');
+    INSERT INTO streetname VALUES('devonbridge');
+    INSERT INTO streetname VALUES('devongate');
+    INSERT INTO streetname VALUES('devonhill');
+    INSERT INTO streetname VALUES('dewmorn');
+    INSERT INTO streetname VALUES('distribution center');
+    INSERT INTO streetname VALUES('dominion crest');
+    INSERT INTO streetname VALUES('dominion green');
+    INSERT INTO streetname VALUES('dominion village');
+    INSERT INTO streetname VALUES('dorshire');
+    INSERT INTO streetname VALUES('double creek crossing');
+    INSERT INTO streetname VALUES('dow');
+    INSERT INTO streetname VALUES('downfield wood');
+    INSERT INTO streetname VALUES('downing creek');
+    INSERT INTO streetname VALUES('driscol');
+    INSERT INTO streetname VALUES('driwood');
+    INSERT INTO streetname VALUES('dry brook');
+    INSERT INTO streetname VALUES('dumont');
+    INSERT INTO streetname VALUES('dunblane');
+    INSERT INTO streetname VALUES('dunfield');
+    INSERT INTO streetname VALUES('dunoon');
+    INSERT INTO streetname VALUES('dunslow');
+    INSERT INTO streetname VALUES('dunstaff');
+    INSERT INTO streetname VALUES('durham');
+    INSERT INTO streetname VALUES('durston');
+    INSERT INTO streetname VALUES('dusty cedar');
+    INSERT INTO streetname VALUES('dusty trail');
+    INSERT INTO streetname VALUES('dutchess');
+    INSERT INTO streetname VALUES('duxford');
+    INSERT INTO streetname VALUES('eagle creek');
+    INSERT INTO streetname VALUES('eagles field');
+    INSERT INTO streetname VALUES('eargle');
+    INSERT INTO streetname VALUES('earlswood');
+    INSERT INTO streetname VALUES('early mist');
+    INSERT INTO streetname VALUES('earthenware');
+    INSERT INTO streetname VALUES('eastfield park');
+    INSERT INTO streetname VALUES('eastfield village');
+    INSERT INTO streetname VALUES('easy');
+    INSERT INTO streetname VALUES('eben');
+    INSERT INTO streetname VALUES('edgepine');
+    INSERT INTO streetname VALUES('edgewier');
+    INSERT INTO streetname VALUES('edinburgh');
+    INSERT INTO streetname VALUES('edinmeadow');
+    INSERT INTO streetname VALUES('edmonton');
+    INSERT INTO streetname VALUES('edwin jones');
+    INSERT INTO streetname VALUES('elberon');
+    INSERT INTO streetname VALUES('elderslie');
+    INSERT INTO streetname VALUES('elementary view');
+    INSERT INTO streetname VALUES('elendil');
+    INSERT INTO streetname VALUES('elizabeth');
+    INSERT INTO streetname VALUES('elm cove');
+    INSERT INTO streetname VALUES('elrond');
+    INSERT INTO streetname VALUES('elsenham');
+    INSERT INTO streetname VALUES('elven');
+    INSERT INTO streetname VALUES('emma lynn');
+    INSERT INTO streetname VALUES('english setter');
+    INSERT INTO streetname VALUES('enoch');
+    INSERT INTO streetname VALUES('equipment');
+    INSERT INTO streetname VALUES('ernest russell');
+    INSERT INTO streetname VALUES('ernie');
+    INSERT INTO streetname VALUES('esmeralda');
+    INSERT INTO streetname VALUES('evergreen hollow');
+    INSERT INTO streetname VALUES('eversfield');
+    INSERT INTO streetname VALUES('ewen');
+    INSERT INTO streetname VALUES('ewert cut');
+    INSERT INTO streetname VALUES('exbury');
+    INSERT INTO streetname VALUES('fair grounds park');
+    INSERT INTO streetname VALUES('fairbourne');
+    INSERT INTO streetname VALUES('fairchase');
+    INSERT INTO streetname VALUES('faircreek');
+    INSERT INTO streetname VALUES('fairglen');
+    INSERT INTO streetname VALUES('fairlea');
+    INSERT INTO streetname VALUES('fairmead');
+    INSERT INTO streetname VALUES('fairmeadows');
+    INSERT INTO streetname VALUES('fairstone');
+    INSERT INTO streetname VALUES('fairvista');
+    INSERT INTO streetname VALUES('fairway point');
+    INSERT INTO streetname VALUES('falconcrest');
+    INSERT INTO streetname VALUES('falls ridge');
+    INSERT INTO streetname VALUES('falmouth');
+    INSERT INTO streetname VALUES('far west');
+    INSERT INTO streetname VALUES('farlow');
+    INSERT INTO streetname VALUES('farris wheel');
+    INSERT INTO streetname VALUES('fawndale');
+    INSERT INTO streetname VALUES('feather bend');
+    INSERT INTO streetname VALUES('fernledge');
+    INSERT INTO streetname VALUES('fernmoss');
+    INSERT INTO streetname VALUES('ferrell commons');
+    INSERT INTO streetname VALUES('fieldstone');
+    INSERT INTO streetname VALUES('fillian');
+    INSERT INTO streetname VALUES('fincher');
+    INSERT INTO streetname VALUES('foggy meadow');
+    INSERT INTO streetname VALUES('fordyce');
+    INSERT INTO streetname VALUES('forest grove');
+    INSERT INTO streetname VALUES('forest path');
+    INSERT INTO streetname VALUES('forestridge commons');
+    INSERT INTO streetname VALUES('forestrock');
+    INSERT INTO streetname VALUES('fortunes ridge');
+    INSERT INTO streetname VALUES('founders club');
+    INSERT INTO streetname VALUES('fountaingrass');
+    INSERT INTO streetname VALUES('fox chase');
+    INSERT INTO streetname VALUES('fox glen');
+    INSERT INTO streetname VALUES('fox hill');
+    INSERT INTO streetname VALUES('fox point');
+    INSERT INTO streetname VALUES('fox trot');
+    INSERT INTO streetname VALUES('foxbriar');
+    INSERT INTO streetname VALUES('frank little');
+    INSERT INTO streetname VALUES('franzia');
+    INSERT INTO streetname VALUES('french woods');
+    INSERT INTO streetname VALUES('frostmoor');
+    INSERT INTO streetname VALUES('frye');
+    INSERT INTO streetname VALUES('furlong');
+    INSERT INTO streetname VALUES('galena view');
+    INSERT INTO streetname VALUES('gallery pointe');
+    INSERT INTO streetname VALUES('gammon');
+    INSERT INTO streetname VALUES('garden grove');
+    INSERT INTO streetname VALUES('gardendale');
+    INSERT INTO streetname VALUES('garganey');
+    INSERT INTO streetname VALUES('garnet field');
+    INSERT INTO streetname VALUES('garrison');
+    INSERT INTO streetname VALUES('garvin');
+    INSERT INTO streetname VALUES('garvis');
+    INSERT INTO streetname VALUES('gaskill');
+    INSERT INTO streetname VALUES('gemstone');
+    INSERT INTO streetname VALUES('gibbon');
+    INSERT INTO streetname VALUES('gibbon terrace');
+    INSERT INTO streetname VALUES('gibbons link');
+    INSERT INTO streetname VALUES('gillman');
+    INSERT INTO streetname VALUES('gladwood');
+    INSERT INTO streetname VALUES('gladwyne');
+    INSERT INTO streetname VALUES('glamorgan');
+    INSERT INTO streetname VALUES('glaze');
+    INSERT INTO streetname VALUES('glen brook');
+    INSERT INTO streetname VALUES('glen cove');
+    INSERT INTO streetname VALUES('glen hope');
+    INSERT INTO streetname VALUES('glen manor');
+    INSERT INTO streetname VALUES('glen olden');
+    INSERT INTO streetname VALUES('glencairn');
+    INSERT INTO streetname VALUES('glendock');
+    INSERT INTO streetname VALUES('glenolden');
+    INSERT INTO streetname VALUES('glenover');
+    INSERT INTO streetname VALUES('glenshire');
+    INSERT INTO streetname VALUES('glenstone');
+    INSERT INTO streetname VALUES('gold dust');
+    INSERT INTO streetname VALUES('golden pond');
+    INSERT INTO streetname VALUES('goldenblush');
+    INSERT INTO streetname VALUES('goldenfield');
+    INSERT INTO streetname VALUES('goose landing');
+    INSERT INTO streetname VALUES('gorham gate');
+    INSERT INTO streetname VALUES('grabill');
+    INSERT INTO streetname VALUES('graburns ford');
+    INSERT INTO streetname VALUES('graham');
+    INSERT INTO streetname VALUES('grahamson');
+    INSERT INTO streetname VALUES('granard');
+    INSERT INTO streetname VALUES('grand teton');
+    INSERT INTO streetname VALUES('grande heights');
+    INSERT INTO streetname VALUES('grandeur');
+    INSERT INTO streetname VALUES('granite creek');
+    INSERT INTO streetname VALUES('grasset');
+    INSERT INTO streetname VALUES('graypark');
+    INSERT INTO streetname VALUES('grays ridge');
+    INSERT INTO streetname VALUES('great bear');
+    INSERT INTO streetname VALUES('green clover');
+    INSERT INTO streetname VALUES('green hedge');
+    INSERT INTO streetname VALUES('green meadow');
+    INSERT INTO streetname VALUES('green pasture');
+    INSERT INTO streetname VALUES('greene');
+    INSERT INTO streetname VALUES('greenloch');
+    INSERT INTO streetname VALUES('greenock ridge');
+    INSERT INTO streetname VALUES('greenware');
+    INSERT INTO streetname VALUES('greenway village');
+    INSERT INTO streetname VALUES('grenelefe village');
+    INSERT INTO streetname VALUES('grey dogwood');
+    INSERT INTO streetname VALUES('greyhound');
+    INSERT INTO streetname VALUES('greylock ridge');
+    INSERT INTO streetname VALUES('grosbeak');
+    INSERT INTO streetname VALUES('grove');
+    INSERT INTO streetname VALUES('groveton');
+    INSERT INTO streetname VALUES('groveview');
+    INSERT INTO streetname VALUES('hackberry creek');
+    INSERT INTO streetname VALUES('hackberry grove');
+    INSERT INTO streetname VALUES('hackett');
+    INSERT INTO streetname VALUES('haddington');
+    INSERT INTO streetname VALUES('hagler');
+    INSERT INTO streetname VALUES('halcott');
+    INSERT INTO streetname VALUES('half dome');
+    INSERT INTO streetname VALUES('hallam');
+    INSERT INTO streetname VALUES('hamilton russell');
+    INSERT INTO streetname VALUES('hampton place');
+    INSERT INTO streetname VALUES('hankins');
+    INSERT INTO streetname VALUES('harburn forest');
+    INSERT INTO streetname VALUES('harringham');
+    INSERT INTO streetname VALUES('harrington woods');
+    INSERT INTO streetname VALUES('harris corners');
+    INSERT INTO streetname VALUES('harris cove');
+    INSERT INTO streetname VALUES('harris glen');
+    INSERT INTO streetname VALUES('harris hill');
+    INSERT INTO streetname VALUES('harris oak');
+    INSERT INTO streetname VALUES('harris pointe');
+    INSERT INTO streetname VALUES('harris pond');
+    INSERT INTO streetname VALUES('harris ridge');
+    INSERT INTO streetname VALUES('harris technology');
+    INSERT INTO streetname VALUES('harris woods');
+    INSERT INTO streetname VALUES('hartfield downs');
+    INSERT INTO streetname VALUES('hattie little');
+    INSERT INTO streetname VALUES('hatwynn');
+    INSERT INTO streetname VALUES('hawkins');
+    INSERT INTO streetname VALUES('hawksnest');
+    INSERT INTO streetname VALUES('haybridge');
+    INSERT INTO streetname VALUES('hayden');
+    INSERT INTO streetname VALUES('hazelcroft');
+    INSERT INTO streetname VALUES('hazlitt');
+    INSERT INTO streetname VALUES('hazy valley');
+    INSERT INTO streetname VALUES('hearst');
+    INSERT INTO streetname VALUES('heathcrest');
+    INSERT INTO streetname VALUES('heathcroft');
+    INSERT INTO streetname VALUES('hedge maple');
+    INSERT INTO streetname VALUES('hedgecrest');
+    INSERT INTO streetname VALUES('hedingham');
+    INSERT INTO streetname VALUES('heman');
+    INSERT INTO streetname VALUES('henderson');
+    INSERT INTO streetname VALUES('henderson oaks');
+    INSERT INTO streetname VALUES('henderson valley');
+    INSERT INTO streetname VALUES('hendry');
+    INSERT INTO streetname VALUES('heritage hills');
+    INSERT INTO streetname VALUES('heritage woods');
+    INSERT INTO streetname VALUES('heron cove');
+    INSERT INTO streetname VALUES('heron glen');
+    INSERT INTO streetname VALUES('hewitt');
+    INSERT INTO streetname VALUES('hey rock');
+    INSERT INTO streetname VALUES('heysham');
+    INSERT INTO streetname VALUES('hickory cove');
+    INSERT INTO streetname VALUES('hidden meadow');
+    INSERT INTO streetname VALUES('high glen');
+    INSERT INTO streetname VALUES('high laurel');
+    INSERT INTO streetname VALUES('high valley');
+    INSERT INTO streetname VALUES('highcroft');
+    INSERT INTO streetname VALUES('highland');
+    INSERT INTO streetname VALUES('highland commons');
+    INSERT INTO streetname VALUES('highland creek');
+    INSERT INTO streetname VALUES('highland glen');
+    INSERT INTO streetname VALUES('highland park');
+    INSERT INTO streetname VALUES('highlander');
+    INSERT INTO streetname VALUES('highstream');
+    INSERT INTO streetname VALUES('hilltop');
+    INSERT INTO streetname VALUES('hobbitshire');
+    INSERT INTO streetname VALUES('hoffman');
+    INSERT INTO streetname VALUES('hogans way');
+    INSERT INTO streetname VALUES('holbert');
+    INSERT INTO streetname VALUES('hollow ridge');
+    INSERT INTO streetname VALUES('holly vista');
+    INSERT INTO streetname VALUES('hollywood');
+    INSERT INTO streetname VALUES('hoover');
+    INSERT INTO streetname VALUES('hopkins');
+    INSERT INTO streetname VALUES('horace mann');
+    INSERT INTO streetname VALUES('hornbeam');
+    INSERT INTO streetname VALUES('horse pasture');
+    INSERT INTO streetname VALUES('hosta');
+    INSERT INTO streetname VALUES('howard');
+    INSERT INTO streetname VALUES('hubbard');
+    INSERT INTO streetname VALUES('hubbard falls');
+    INSERT INTO streetname VALUES('hubbard woods');
+    INSERT INTO streetname VALUES('hucks');
+    INSERT INTO streetname VALUES('hunters creek');
+    INSERT INTO streetname VALUES('hunters pointe');
+    INSERT INTO streetname VALUES('hunters spring');
+    INSERT INTO streetname VALUES('hunters whip');
+    INSERT INTO streetname VALUES('huntmeadow');
+    INSERT INTO streetname VALUES('hutchison mcdonald');
+    INSERT INTO streetname VALUES('ingleton');
+    INSERT INTO streetname VALUES('insdale');
+    INSERT INTO streetname VALUES('interstate 85 service');
+    INSERT INTO streetname VALUES('iola');
+    INSERT INTO streetname VALUES('iredell');
+    INSERT INTO streetname VALUES('iron brigade');
+    INSERT INTO streetname VALUES('irwin valley');
+    INSERT INTO streetname VALUES('irwin wood');
+    INSERT INTO streetname VALUES('ivy brook');
+    INSERT INTO streetname VALUES('ivy ridge');
+    INSERT INTO streetname VALUES('jack russell');
+    INSERT INTO streetname VALUES('jackson');
+    INSERT INTO streetname VALUES('jacob martin');
+    INSERT INTO streetname VALUES('jamison');
+    INSERT INTO streetname VALUES('jane');
+    INSERT INTO streetname VALUES('jaspar crest');
+    INSERT INTO streetname VALUES('jessica');
+    INSERT INTO streetname VALUES('jimmy oehler');
+    INSERT INTO streetname VALUES('jocelyn');
+    INSERT INTO streetname VALUES('johnston mill');
+    INSERT INTO streetname VALUES('johnston oehler');
+    INSERT INTO streetname VALUES('judal');
+    INSERT INTO streetname VALUES('junipeous');
+    INSERT INTO streetname VALUES('juniper');
+    INSERT INTO streetname VALUES('juniperus');
+    INSERT INTO streetname VALUES('kalispell');
+    INSERT INTO streetname VALUES('karylsturn');
+    INSERT INTO streetname VALUES('katelyn');
+    INSERT INTO streetname VALUES('kayron');
+    INSERT INTO streetname VALUES('keaton');
+    INSERT INTO streetname VALUES('keble');
+    INSERT INTO streetname VALUES('keels');
+    INSERT INTO streetname VALUES('keith');
+    INSERT INTO streetname VALUES('keithwood');
+    INSERT INTO streetname VALUES('kelden walker');
+    INSERT INTO streetname VALUES('kelsey emma');
+    INSERT INTO streetname VALUES('kendrick');
+    INSERT INTO streetname VALUES('kenmont');
+    INSERT INTO streetname VALUES('kennerly cove');
+    INSERT INTO streetname VALUES('kenninghall');
+    INSERT INTO streetname VALUES('kent village');
+    INSERT INTO streetname VALUES('kestral ridge');
+    INSERT INTO streetname VALUES('kestrel');
+    INSERT INTO streetname VALUES('kilmartin');
+    INSERT INTO streetname VALUES('kilty');
+    INSERT INTO streetname VALUES('kinglet');
+    INSERT INTO streetname VALUES('kingsland');
+    INSERT INTO streetname VALUES('kingsnorth');
+    INSERT INTO streetname VALUES('kinsmore');
+    INSERT INTO streetname VALUES('kirkgard');
+    INSERT INTO streetname VALUES('kirkmont');
+    INSERT INTO streetname VALUES('knightsgate');
+    INSERT INTO streetname VALUES('kobuk');
+    INSERT INTO streetname VALUES('kotlik');
+    INSERT INTO streetname VALUES('kotz');
+    INSERT INTO streetname VALUES('kyndall walk');
+    INSERT INTO streetname VALUES('laborde');
+    INSERT INTO streetname VALUES('lady bank');
+    INSERT INTO streetname VALUES('lagrande');
+    INSERT INTO streetname VALUES('lake');
+    INSERT INTO streetname VALUES('lakeridge commons');
+    INSERT INTO streetname VALUES('lakeview');
+    INSERT INTO streetname VALUES('lakewood edge');
+    INSERT INTO streetname VALUES('lakota');
+    INSERT INTO streetname VALUES('lambrook');
+    INSERT INTO streetname VALUES('lampkin');
+    INSERT INTO streetname VALUES('lampkin park');
+    INSERT INTO streetname VALUES('langham');
+    INSERT INTO streetname VALUES('lanzerac manor');
+    INSERT INTO streetname VALUES('larkmead forest');
+    INSERT INTO streetname VALUES('lattice');
+    INSERT INTO streetname VALUES('laurel crest');
+    INSERT INTO streetname VALUES('laurel ridge');
+    INSERT INTO streetname VALUES('laurel run');
+    INSERT INTO streetname VALUES('laurenfield');
+    INSERT INTO streetname VALUES('laveta');
+    INSERT INTO streetname VALUES('lazy day');
+    INSERT INTO streetname VALUES('leawood run');
+    INSERT INTO streetname VALUES('lee marie');
+    INSERT INTO streetname VALUES('legacy lake');
+    INSERT INTO streetname VALUES('legacy park');
+    INSERT INTO streetname VALUES('legato');
+    INSERT INTO streetname VALUES('legolas');
+    INSERT INTO streetname VALUES('leigh glen');
+    INSERT INTO streetname VALUES('lence');
+    INSERT INTO streetname VALUES('lenox hill');
+    INSERT INTO streetname VALUES('leonine');
+    INSERT INTO streetname VALUES('leslie');
+    INSERT INTO streetname VALUES('lester hill');
+    INSERT INTO streetname VALUES('levisey');
+    INSERT INTO streetname VALUES('liberty bell');
+    INSERT INTO streetname VALUES('linden berry');
+    INSERT INTO streetname VALUES('lisbon');
+    INSERT INTO streetname VALUES('little stoney');
+    INSERT INTO streetname VALUES('livengood');
+    INSERT INTO streetname VALUES('lochway');
+    INSERT INTO streetname VALUES('lockman');
+    INSERT INTO streetname VALUES('loganville');
+    INSERT INTO streetname VALUES('lone tree');
+    INSERT INTO streetname VALUES('long creek park');
+    INSERT INTO streetname VALUES('long forest');
+    INSERT INTO streetname VALUES('looking glass');
+    INSERT INTO streetname VALUES('lookout point');
+    INSERT INTO streetname VALUES('lowen');
+    INSERT INTO streetname VALUES('lusby');
+    INSERT INTO streetname VALUES('lyleton');
+    INSERT INTO streetname VALUES('lynn lee');
+    INSERT INTO streetname VALUES('lynnewood glen');
+    INSERT INTO streetname VALUES('machrie');
+    INSERT INTO streetname VALUES('mackinac');
+    INSERT INTO streetname VALUES('maddox');
+    INSERT INTO streetname VALUES('madison park');
+    INSERT INTO streetname VALUES('mallard');
+    INSERT INTO streetname VALUES('mallard cove');
+    INSERT INTO streetname VALUES('mallard forest');
+    INSERT INTO streetname VALUES('mallard grove');
+    INSERT INTO streetname VALUES('mallard hill');
+    INSERT INTO streetname VALUES('mallard park');
+    INSERT INTO streetname VALUES('mallard ridge');
+    INSERT INTO streetname VALUES('mallard view');
+    INSERT INTO streetname VALUES('manbey');
+    INSERT INTO streetname VALUES('manning');
+    INSERT INTO streetname VALUES('mantario');
+    INSERT INTO streetname VALUES('maple');
+    INSERT INTO streetname VALUES('maple cove');
+    INSERT INTO streetname VALUES('maple park');
+    INSERT INTO streetname VALUES('marathon hill');
+    INSERT INTO streetname VALUES('marbury');
+    INSERT INTO streetname VALUES('marett');
+    INSERT INTO streetname VALUES('marigold');
+    INSERT INTO streetname VALUES('marionwood');
+    INSERT INTO streetname VALUES('marshbank');
+    INSERT INTO streetname VALUES('mason');
+    INSERT INTO streetname VALUES('mayapple');
+    INSERT INTO streetname VALUES('maylandia');
+    INSERT INTO streetname VALUES('mayspring');
+    INSERT INTO streetname VALUES('mcadam');
+    INSERT INTO streetname VALUES('mcchesney');
+    INSERT INTO streetname VALUES('mccurdy');
+    INSERT INTO streetname VALUES('mcgrath');
+    INSERT INTO streetname VALUES('mckendree');
+    INSERT INTO streetname VALUES('mclaughlin');
+    INSERT INTO streetname VALUES('mctaggart');
+    INSERT INTO streetname VALUES('meadow green');
+    INSERT INTO streetname VALUES('meadow knoll');
+    INSERT INTO streetname VALUES('meadow post');
+    INSERT INTO streetname VALUES('meadowmont');
+    INSERT INTO streetname VALUES('meadowmont view');
+    INSERT INTO streetname VALUES('meadowview hills');
+    INSERT INTO streetname VALUES('melshire');
+    INSERT INTO streetname VALUES('melstrand');
+    INSERT INTO streetname VALUES('mentone');
+    INSERT INTO streetname VALUES('meridale crossing');
+    INSERT INTO streetname VALUES('merion hills');
+    INSERT INTO streetname VALUES('merlot');
+    INSERT INTO streetname VALUES('mersham');
+    INSERT INTO streetname VALUES('metromont');
+    INSERT INTO streetname VALUES('metromont industrial');
+    INSERT INTO streetname VALUES('michaw');
+    INSERT INTO streetname VALUES('milhaven');
+    INSERT INTO streetname VALUES('milhof');
+    INSERT INTO streetname VALUES('millstream ridge');
+    INSERT INTO streetname VALUES('mineral ridge');
+    INSERT INTO streetname VALUES('mint thistle');
+    INSERT INTO streetname VALUES('mintleaf');
+    INSERT INTO streetname VALUES('mintvale');
+    INSERT INTO streetname VALUES('misty');
+    INSERT INTO streetname VALUES('misty arbor');
+    INSERT INTO streetname VALUES('misty creek');
+    INSERT INTO streetname VALUES('misty oaks');
+    INSERT INTO streetname VALUES('misty wood');
+    INSERT INTO streetname VALUES('mitzi deborah');
+    INSERT INTO streetname VALUES('mobile');
+    INSERT INTO streetname VALUES('molly elizabeth');
+    INSERT INTO streetname VALUES('monmouth');
+    INSERT INTO streetname VALUES('montrose');
+    INSERT INTO streetname VALUES('moonlight');
+    INSERT INTO streetname VALUES('moose');
+    INSERT INTO streetname VALUES('morning dew');
+    INSERT INTO streetname VALUES('morningsong');
+    INSERT INTO streetname VALUES('morningview');
+    INSERT INTO streetname VALUES('morsey');
+    INSERT INTO streetname VALUES('moss glen');
+    INSERT INTO streetname VALUES('mossy bank');
+    INSERT INTO streetname VALUES('motor sport');
+    INSERT INTO streetname VALUES('mountain laurel');
+    INSERT INTO streetname VALUES('mourning dove');
+    INSERT INTO streetname VALUES('mozart');
+    INSERT INTO streetname VALUES('munsing');
+    INSERT INTO streetname VALUES('murray');
+    INSERT INTO streetname VALUES('nathan');
+    INSERT INTO streetname VALUES('netherhall');
+    INSERT INTO streetname VALUES('netherton');
+    INSERT INTO streetname VALUES('neuhoff');
+    INSERT INTO streetname VALUES('nevin');
+    INSERT INTO streetname VALUES('nevin brook');
+    INSERT INTO streetname VALUES('nevin glen');
+    INSERT INTO streetname VALUES('nevin place');
+    INSERT INTO streetname VALUES('new england');
+    INSERT INTO streetname VALUES('new house');
+    INSERT INTO streetname VALUES('newbary');
+    INSERT INTO streetname VALUES('newchurch');
+    INSERT INTO streetname VALUES('newfane');
+    INSERT INTO streetname VALUES('newgard');
+    INSERT INTO streetname VALUES('nicholas');
+    INSERT INTO streetname VALUES('nicole');
+    INSERT INTO streetname VALUES('nobility');
+    INSERT INTO streetname VALUES('norcroft');
+    INSERT INTO streetname VALUES('northridge');
+    INSERT INTO streetname VALUES('northside');
+    INSERT INTO streetname VALUES('northwoods business');
+    INSERT INTO streetname VALUES('norway');
+    INSERT INTO streetname VALUES('nottinghill');
+    INSERT INTO streetname VALUES('numenore');
+    INSERT INTO streetname VALUES('nyewood');
+    INSERT INTO streetname VALUES('oak');
+    INSERT INTO streetname VALUES('oak cove');
+    INSERT INTO streetname VALUES('oak pasture');
+    INSERT INTO streetname VALUES('oakburn');
+    INSERT INTO streetname VALUES('oakwinds');
+    INSERT INTO streetname VALUES('oakwood');
+    INSERT INTO streetname VALUES('obrien');
+    INSERT INTO streetname VALUES('ocala');
+    INSERT INTO streetname VALUES('old bridge');
+    INSERT INTO streetname VALUES('old fox');
+    INSERT INTO streetname VALUES('old potters');
+    INSERT INTO streetname VALUES('old statesville');
+    INSERT INTO streetname VALUES('old steine');
+    INSERT INTO streetname VALUES('old stoney creek');
+    INSERT INTO streetname VALUES('old sugar creek');
+    INSERT INTO streetname VALUES('old timber');
+    INSERT INTO streetname VALUES('old wagon');
+    INSERT INTO streetname VALUES('old willow');
+    INSERT INTO streetname VALUES('oldenway');
+    INSERT INTO streetname VALUES('oneida');
+    INSERT INTO streetname VALUES('ontario');
+    INSERT INTO streetname VALUES('oriole');
+    INSERT INTO streetname VALUES('orofino');
+    INSERT INTO streetname VALUES('orr');
+    INSERT INTO streetname VALUES('osage');
+    INSERT INTO streetname VALUES('osceola');
+    INSERT INTO streetname VALUES('osprey knoll');
+    INSERT INTO streetname VALUES('oxford hill');
+    INSERT INTO streetname VALUES('painted fern');
+    INSERT INTO streetname VALUES('painted pony');
+    INSERT INTO streetname VALUES('paisley');
+    INSERT INTO streetname VALUES('pale moss');
+    INSERT INTO streetname VALUES('palladium');
+    INSERT INTO streetname VALUES('palmutum');
+    INSERT INTO streetname VALUES('palustris');
+    INSERT INTO streetname VALUES('panglemont');
+    INSERT INTO streetname VALUES('panther');
+    INSERT INTO streetname VALUES('panthersville');
+    INSERT INTO streetname VALUES('paper whites');
+    INSERT INTO streetname VALUES('park');
+    INSERT INTO streetname VALUES('parker green');
+    INSERT INTO streetname VALUES('parkhouse');
+    INSERT INTO streetname VALUES('passour ridge');
+    INSERT INTO streetname VALUES('pasture view');
+    INSERT INTO streetname VALUES('patricia ann');
+    INSERT INTO streetname VALUES('patton');
+    INSERT INTO streetname VALUES('patton ridge');
+    INSERT INTO streetname VALUES('pawpaw');
+    INSERT INTO streetname VALUES('peach');
+    INSERT INTO streetname VALUES('peakwood');
+    INSERT INTO streetname VALUES('pebble creek');
+    INSERT INTO streetname VALUES('pecan cove');
+    INSERT INTO streetname VALUES('pedigree');
+    INSERT INTO streetname VALUES('pelorus');
+    INSERT INTO streetname VALUES('penmore');
+    INSERT INTO streetname VALUES('pensfold');
+    INSERT INTO streetname VALUES('pepperstone');
+    INSERT INTO streetname VALUES('peregrine');
+    INSERT INTO streetname VALUES('periwinkle');
+    INSERT INTO streetname VALUES('perkins');
+    INSERT INTO streetname VALUES('pete brown');
+    INSERT INTO streetname VALUES('phillips');
+    INSERT INTO streetname VALUES('pickway');
+    INSERT INTO streetname VALUES('piercy woods');
+    INSERT INTO streetname VALUES('pierpoint');
+    INSERT INTO streetname VALUES('pine');
+    INSERT INTO streetname VALUES('pine branch');
+    INSERT INTO streetname VALUES('pine meadow');
+    INSERT INTO streetname VALUES('pineleaf');
+    INSERT INTO streetname VALUES('pinewood');
+    INSERT INTO streetname VALUES('pintail');
+    INSERT INTO streetname VALUES('pipestone');
+    INSERT INTO streetname VALUES('placer maple');
+    INSERT INTO streetname VALUES('plover');
+    INSERT INTO streetname VALUES('plum');
+    INSERT INTO streetname VALUES('po box');
+    INSERT INTO streetname VALUES('pochard');
+    INSERT INTO streetname VALUES('pointview');
+    INSERT INTO streetname VALUES('polk and white');
+    INSERT INTO streetname VALUES('pond valley');
+    INSERT INTO streetname VALUES('pondridge');
+    INSERT INTO streetname VALUES('pope farm');
+    INSERT INTO streetname VALUES('poplar grove');
+    INSERT INTO streetname VALUES('poplar springs');
+    INSERT INTO streetname VALUES('portola');
+    INSERT INTO streetname VALUES('potters glen');
+    INSERT INTO streetname VALUES('powatan');
+    INSERT INTO streetname VALUES('prairie valley');
+    INSERT INTO streetname VALUES('prescott');
+    INSERT INTO streetname VALUES('presmann');
+    INSERT INTO streetname VALUES('prestigious');
+    INSERT INTO streetname VALUES('princess');
+    INSERT INTO streetname VALUES('prosperity');
+    INSERT INTO streetname VALUES('prosperity church');
+    INSERT INTO streetname VALUES('prosperity commons');
+    INSERT INTO streetname VALUES('prosperity park');
+    INSERT INTO streetname VALUES('prosperity point');
+    INSERT INTO streetname VALUES('prosperity ridge');
+    INSERT INTO streetname VALUES('prosperity view');
+    INSERT INTO streetname VALUES('purple finch');
+    INSERT INTO streetname VALUES('quail');
+    INSERT INTO streetname VALUES('queensbury');
+    INSERT INTO streetname VALUES('quinn');
+    INSERT INTO streetname VALUES('racine');
+    INSERT INTO streetname VALUES('radbourne');
+    INSERT INTO streetname VALUES('raddington');
+    INSERT INTO streetname VALUES('raku');
+    INSERT INTO streetname VALUES('rancliffe');
+    INSERT INTO streetname VALUES('ravencrest');
+    INSERT INTO streetname VALUES('reames');
+    INSERT INTO streetname VALUES('rebecca run');
+    INSERT INTO streetname VALUES('red bluff');
+    INSERT INTO streetname VALUES('red clay');
+    INSERT INTO streetname VALUES('red clover');
+    INSERT INTO streetname VALUES('red rose');
+    INSERT INTO streetname VALUES('red shed');
+    INSERT INTO streetname VALUES('red tail');
+    INSERT INTO streetname VALUES('redbridge');
+    INSERT INTO streetname VALUES('redstart');
+    INSERT INTO streetname VALUES('redstone view');
+    INSERT INTO streetname VALUES('reedmont');
+    INSERT INTO streetname VALUES('reeves');
+    INSERT INTO streetname VALUES('regal');
+    INSERT INTO streetname VALUES('reinbeck');
+    INSERT INTO streetname VALUES('retriever');
+    INSERT INTO streetname VALUES('ribbonwalk');
+    INSERT INTO streetname VALUES('richardson park');
+    INSERT INTO streetname VALUES('richfield');
+    INSERT INTO streetname VALUES('riddings');
+    INSERT INTO streetname VALUES('ridge');
+    INSERT INTO streetname VALUES('ridge cliff');
+    INSERT INTO streetname VALUES('ridge path');
+    INSERT INTO streetname VALUES('ridge peak');
+    INSERT INTO streetname VALUES('ridgefield');
+    INSERT INTO streetname VALUES('ridgeline');
+    INSERT INTO streetname VALUES('ridgeview commons');
+    INSERT INTO streetname VALUES('riley');
+    INSERT INTO streetname VALUES('riley woods');
+    INSERT INTO streetname VALUES('rillet');
+    INSERT INTO streetname VALUES('rindle');
+    INSERT INTO streetname VALUES('rivendell');
+    INSERT INTO streetname VALUES('robin');
+    INSERT INTO streetname VALUES('robins nest');
+    INSERT INTO streetname VALUES('robur');
+    INSERT INTO streetname VALUES('robyns glen');
+    INSERT INTO streetname VALUES('rock stream');
+    INSERT INTO streetname VALUES('rockwell');
+    INSERT INTO streetname VALUES('rockwell church');
+    INSERT INTO streetname VALUES('rocky brook');
+    INSERT INTO streetname VALUES('rocky ford club');
+    INSERT INTO streetname VALUES('rotary');
+    INSERT INTO streetname VALUES('rouda');
+    INSERT INTO streetname VALUES('royal bluff');
+    INSERT INTO streetname VALUES('royal celadon');
+    INSERT INTO streetname VALUES('rubin lura');
+    INSERT INTO streetname VALUES('runswyck');
+    INSERT INTO streetname VALUES('ruth ferrell');
+    INSERT INTO streetname VALUES('ruth polk');
+    INSERT INTO streetname VALUES('ryan jay');
+    INSERT INTO streetname VALUES('sackett');
+    INSERT INTO streetname VALUES('saddle pace');
+    INSERT INTO streetname VALUES('saddle run');
+    INSERT INTO streetname VALUES('saddle trail');
+    INSERT INTO streetname VALUES('saguaro');
+    INSERT INTO streetname VALUES('saint audrey');
+    INSERT INTO streetname VALUES('saint bernard');
+    INSERT INTO streetname VALUES('saint frances');
+    INSERT INTO streetname VALUES('sam roper');
+    INSERT INTO streetname VALUES('samara');
+    INSERT INTO streetname VALUES('sanders creek');
+    INSERT INTO streetname VALUES('saquache');
+    INSERT INTO streetname VALUES('sarnia');
+    INSERT INTO streetname VALUES('savannah springs');
+    INSERT INTO streetname VALUES('sawgrass ridge');
+    INSERT INTO streetname VALUES('saxonbury');
+    INSERT INTO streetname VALUES('scotch moss');
+    INSERT INTO streetname VALUES('seasons');
+    INSERT INTO streetname VALUES('serenity');
+    INSERT INTO streetname VALUES('seths');
+    INSERT INTO streetname VALUES('shadow lawn');
+    INSERT INTO streetname VALUES('shadow oaks');
+    INSERT INTO streetname VALUES('shadow pine');
+    INSERT INTO streetname VALUES('shadyside');
+    INSERT INTO streetname VALUES('shallow oak');
+    INSERT INTO streetname VALUES('shelley');
+    INSERT INTO streetname VALUES('shining oak');
+    INSERT INTO streetname VALUES('ship');
+    INSERT INTO streetname VALUES('shore haven');
+    INSERT INTO streetname VALUES('shuman');
+    INSERT INTO streetname VALUES('sidney');
+    INSERT INTO streetname VALUES('silver birch');
+    INSERT INTO streetname VALUES('silvermere');
+    INSERT INTO streetname VALUES('simonton');
+    INSERT INTO streetname VALUES('singing hills');
+    INSERT INTO streetname VALUES('singing oak');
+    INSERT INTO streetname VALUES('sipes');
+    INSERT INTO streetname VALUES('six point');
+    INSERT INTO streetname VALUES('skycrest');
+    INSERT INTO streetname VALUES('skyline');
+    INSERT INTO streetname VALUES('small');
+    INSERT INTO streetname VALUES('smith corners');
+    INSERT INTO streetname VALUES('smithwood');
+    INSERT INTO streetname VALUES('snow hill');
+    INSERT INTO streetname VALUES('soapstone');
+    INSERT INTO streetname VALUES('sobeck');
+    INSERT INTO streetname VALUES('socata');
+    INSERT INTO streetname VALUES('solace');
+    INSERT INTO streetname VALUES('solway');
+    INSERT INTO streetname VALUES('song sparrow');
+    INSERT INTO streetname VALUES('sorrento');
+    INSERT INTO streetname VALUES('spector');
+    INSERT INTO streetname VALUES('spin drift');
+    INSERT INTO streetname VALUES('spring crest');
+    INSERT INTO streetname VALUES('spring lee');
+    INSERT INTO streetname VALUES('spring park');
+    INSERT INTO streetname VALUES('spring terrace');
+    INSERT INTO streetname VALUES('spring trace');
+    INSERT INTO streetname VALUES('springhaven');
+    INSERT INTO streetname VALUES('squirrel trail');
+    INSERT INTO streetname VALUES('stardust');
+    INSERT INTO streetname VALUES('stargaze');
+    INSERT INTO streetname VALUES('starita');
+    INSERT INTO streetname VALUES('starmount');
+    INSERT INTO streetname VALUES('statesville');
+    INSERT INTO streetname VALUES('steed');
+    INSERT INTO streetname VALUES('steelewood');
+    INSERT INTO streetname VALUES('steepleglen');
+    INSERT INTO streetname VALUES('stephens farm');
+    INSERT INTO streetname VALUES('stewarton');
+    INSERT INTO streetname VALUES('stone park');
+    INSERT INTO streetname VALUES('stonebrook');
+    INSERT INTO streetname VALUES('stonefield');
+    INSERT INTO streetname VALUES('stoneglen');
+    INSERT INTO streetname VALUES('stonemarsh');
+    INSERT INTO streetname VALUES('stoney garden');
+    INSERT INTO streetname VALUES('stoney run');
+    INSERT INTO streetname VALUES('stoney valley');
+    INSERT INTO streetname VALUES('stoneykirk');
+    INSERT INTO streetname VALUES('stream bank');
+    INSERT INTO streetname VALUES('stream ridge');
+    INSERT INTO streetname VALUES('suburban');
+    INSERT INTO streetname VALUES('suffield');
+    INSERT INTO streetname VALUES('sugar creek');
+    INSERT INTO streetname VALUES('sugarberry');
+    INSERT INTO streetname VALUES('sugarstone');
+    INSERT INTO streetname VALUES('summer creek');
+    INSERT INTO streetname VALUES('summer valley');
+    INSERT INTO streetname VALUES('summercrest');
+    INSERT INTO streetname VALUES('summercroft');
+    INSERT INTO streetname VALUES('summerford');
+    INSERT INTO streetname VALUES('summergold');
+    INSERT INTO streetname VALUES('sunbeam');
+    INSERT INTO streetname VALUES('sunbridge');
+    INSERT INTO streetname VALUES('sunpath');
+    INSERT INTO streetname VALUES('sunset');
+    INSERT INTO streetname VALUES('sunset ridge');
+    INSERT INTO streetname VALUES('sunstone');
+    INSERT INTO streetname VALUES('suntrace');
+    INSERT INTO streetname VALUES('sunwalk');
+    INSERT INTO streetname VALUES('sutters hill');
+    INSERT INTO streetname VALUES('suttonview');
+    INSERT INTO streetname VALUES('swallow tail');
+    INSERT INTO streetname VALUES('swanston');
+    INSERT INTO streetname VALUES('sweet grove');
+    INSERT INTO streetname VALUES('sweet rose');
+    INSERT INTO streetname VALUES('sweetbriar ridge');
+    INSERT INTO streetname VALUES('sweetfield');
+    INSERT INTO streetname VALUES('sydney overlook');
+    INSERT INTO streetname VALUES('sylvan');
+    INSERT INTO streetname VALUES('symphony woods');
+    INSERT INTO streetname VALUES('tallia');
+    INSERT INTO streetname VALUES('tallu');
+    INSERT INTO streetname VALUES('talwyn');
+    INSERT INTO streetname VALUES('tanager');
+    INSERT INTO streetname VALUES('tanager park');
+    INSERT INTO streetname VALUES('tangley');
+    INSERT INTO streetname VALUES('taranasay');
+    INSERT INTO streetname VALUES('tarby');
+    INSERT INTO streetname VALUES('tarland');
+    INSERT INTO streetname VALUES('tarpway');
+    INSERT INTO streetname VALUES('tauten');
+    INSERT INTO streetname VALUES('taymouth');
+    INSERT INTO streetname VALUES('ten trees');
+    INSERT INTO streetname VALUES('terrace view');
+    INSERT INTO streetname VALUES('terrier');
+    INSERT INTO streetname VALUES('tesh');
+    INSERT INTO streetname VALUES('teton');
+    INSERT INTO streetname VALUES('tewkesbury');
+    INSERT INTO streetname VALUES('thelema');
+    INSERT INTO streetname VALUES('thistle bloom');
+    INSERT INTO streetname VALUES('thistledown');
+    INSERT INTO streetname VALUES('thomas ridge');
+    INSERT INTO streetname VALUES('thornbrook');
+    INSERT INTO streetname VALUES('tifton grass');
+    INSERT INTO streetname VALUES('tigerton');
+    INSERT INTO streetname VALUES('tomsie efird');
+    INSERT INTO streetname VALUES('tor');
+    INSERT INTO streetname VALUES('torphin');
+    INSERT INTO streetname VALUES('torrence');
+    INSERT INTO streetname VALUES('towering pine');
+    INSERT INTO streetname VALUES('towhee');
+    INSERT INTO streetname VALUES('toxaway');
+    INSERT INTO streetname VALUES('tracy glenn');
+    INSERT INTO streetname VALUES('tradition view');
+    INSERT INTO streetname VALUES('trailer');
+    INSERT INTO streetname VALUES('transport');
+    INSERT INTO streetname VALUES('trehurst');
+    INSERT INTO streetname VALUES('trexler');
+    INSERT INTO streetname VALUES('trillium fields');
+    INSERT INTO streetname VALUES('trimbach');
+    INSERT INTO streetname VALUES('tucker');
+    INSERT INTO streetname VALUES('tullamore');
+    INSERT INTO streetname VALUES('tullock creek');
+    INSERT INTO streetname VALUES('tunston');
+    INSERT INTO streetname VALUES('tupelo');
+    INSERT INTO streetname VALUES('turnabout');
+    INSERT INTO streetname VALUES('turney');
+    INSERT INTO streetname VALUES('turtle cross');
+    INSERT INTO streetname VALUES('turtleback');
+    INSERT INTO streetname VALUES('twelvestone');
+    INSERT INTO streetname VALUES('twin');
+    INSERT INTO streetname VALUES('twin brook');
+    INSERT INTO streetname VALUES('twin lakes');
+    INSERT INTO streetname VALUES('twisted pine');
+    INSERT INTO streetname VALUES('tyler finley');
+    INSERT INTO streetname VALUES('university station');
+    INSERT INTO streetname VALUES('uphill');
+    INSERT INTO streetname VALUES('valeview');
+    INSERT INTO streetname VALUES('valhalla');
+    INSERT INTO streetname VALUES('van');
+    INSERT INTO streetname VALUES('vance davis');
+    INSERT INTO streetname VALUES('vanhoy');
+    INSERT INTO streetname VALUES('veckman');
+    INSERT INTO streetname VALUES('victoria');
+    INSERT INTO streetname VALUES('victory');
+    INSERT INTO streetname VALUES('village glen');
+    INSERT INTO streetname VALUES('vireo');
+    INSERT INTO streetname VALUES('viscount');
+    INSERT INTO streetname VALUES('voeltz');
+    INSERT INTO streetname VALUES('wade e morgan');
+    INSERT INTO streetname VALUES('wake');
+    INSERT INTO streetname VALUES('wales');
+    INSERT INTO streetname VALUES('wallace ridge');
+    INSERT INTO streetname VALUES('waltham');
+    INSERT INTO streetname VALUES('wanamassa');
+    INSERT INTO streetname VALUES('warbler wood');
+    INSERT INTO streetname VALUES('washington');
+    INSERT INTO streetname VALUES('water');
+    INSERT INTO streetname VALUES('waterelm');
+    INSERT INTO streetname VALUES('waterford hills');
+    INSERT INTO streetname VALUES('waterford valley');
+    INSERT INTO streetname VALUES('waterloo');
+    INSERT INTO streetname VALUES('waterton leas');
+    INSERT INTO streetname VALUES('waverly lynn');
+    INSERT INTO streetname VALUES('waverlyglen');
+    INSERT INTO streetname VALUES('wayside');
+    INSERT INTO streetname VALUES('westbury lake');
+    INSERT INTO streetname VALUES('westray');
+    INSERT INTO streetname VALUES('whistlers chase');
+    INSERT INTO streetname VALUES('whistley green');
+    INSERT INTO streetname VALUES('whistling oak');
+    INSERT INTO streetname VALUES('whitcomb');
+    INSERT INTO streetname VALUES('white aspen');
+    INSERT INTO streetname VALUES('white cascade');
+    INSERT INTO streetname VALUES('white mist');
+    INSERT INTO streetname VALUES('white rock');
+    INSERT INTO streetname VALUES('white stag');
+    INSERT INTO streetname VALUES('whitegate');
+    INSERT INTO streetname VALUES('whitehill');
+    INSERT INTO streetname VALUES('whitetail');
+    INSERT INTO streetname VALUES('whitewood');
+    INSERT INTO streetname VALUES('wilburn park');
+    INSERT INTO streetname VALUES('wild garden');
+    INSERT INTO streetname VALUES('wild rose');
+    INSERT INTO streetname VALUES('wilkins terrace');
+    INSERT INTO streetname VALUES('william ficklen');
+    INSERT INTO streetname VALUES('wiltshire ridge');
+    INSERT INTO streetname VALUES('windchase');
+    INSERT INTO streetname VALUES('winding jordan');
+    INSERT INTO streetname VALUES('windy meadow');
+    INSERT INTO streetname VALUES('winghaven');
+    INSERT INTO streetname VALUES('wingmont');
+    INSERT INTO streetname VALUES('winslow');
+    INSERT INTO streetname VALUES('winter pine');
+    INSERT INTO streetname VALUES('winter view');
+    INSERT INTO streetname VALUES('wolf creek');
+    INSERT INTO streetname VALUES('wondering oak');
+    INSERT INTO streetname VALUES('woodard');
+    INSERT INTO streetname VALUES('woodfire');
+    INSERT INTO streetname VALUES('woodland commons');
+    INSERT INTO streetname VALUES('woodland hills');
+    INSERT INTO streetname VALUES('woodnotch');
+    INSERT INTO streetname VALUES('woodstone');
+    INSERT INTO streetname VALUES('worsley');
+    INSERT INTO streetname VALUES('wren creek');
+    INSERT INTO streetname VALUES('wrens nest');
+    INSERT INTO streetname VALUES('wrexham');
+    INSERT INTO streetname VALUES('wt harris');
+    INSERT INTO streetname VALUES('wylie meadow');
+    INSERT INTO streetname VALUES('wynborough');
+    INSERT INTO streetname VALUES('wynbrook');
+    INSERT INTO streetname VALUES('wyndham hill');
+    INSERT INTO streetname VALUES('yandem');
+    INSERT INTO streetname VALUES('yellow rose');
+    INSERT INTO streetname VALUES('yellow spaniel');
+    INSERT INTO streetname VALUES('yorkford');
+    INSERT INTO streetname VALUES('ziegler');
+    INSERT INTO streetname VALUES('zion renaissance');
+
+    SELECT count(*) FROM streetname;
+  }
+} {1228}
+
+do_test fuzzer1-2.1 {
+  execsql {
+    SELECT n, distance FROM f2, streetname
+     WHERE f2.word MATCH 'wersley'
+       AND f2.distance<=150
+       AND f2.word=streetname.n
+  }
+} {worsley 37}
+do_test fuzzer1-2.2 {
+  execsql {
+    SELECT n, distance FROM f2, streetname
+     WHERE f2.word MATCH 'testledown'
+       AND f2.distance<=150
+       AND f2.word=streetname.n
+  }
+} {thistledown 103}
+do_test fuzzer1-2.3 {
+  execsql {
+    SELECT DISTINCT streetname.n FROM f2, streetname
+     WHERE f2.word MATCH 'tayle'
+       AND f2.distance<=200
+       AND streetname.n>=f2.word AND streetname.n<=(f2.word || x'F7BFBFBF')
+  }
+} {{tyler finley} trailer taymouth steelewood tallia tallu talwyn thelema}
+do_test fuzzer1-2.4 {
+  execsql {
+    SELECT DISTINCT streetname.n
+      FROM f2 JOIN streetname
+        ON (streetname.n>=f2.word AND streetname.n<=(f2.word || 'zzzzzz'))
+     WHERE f2.word MATCH 'duck'
+       AND f2.distance<150
+       AND f2.ruleset=3
+     ORDER BY 1
+  }
+} {mallard {mallard cove} {mallard forest} {mallard grove} {mallard hill} {mallard park} {mallard ridge} {mallard view}}
+do_test fuzzer1-2.5 {
+  execsql {
+    SELECT DISTINCT streetname.n
+      FROM f2 JOIN streetname
+        ON (streetname.n>=f2.word AND streetname.n<=(f2.word || 'zzzzzz'))
+     WHERE f2.word MATCH 'duck'
+       AND f2.distance<150
+       AND f2.ruleset=2
+     ORDER BY 1
+  }
+} {}
+
+forcedelete test.db2
+do_execsql_test fuzzer1-4.1 {
+  ATTACH 'test.db2' AS aux;
+  CREATE TABLE aux.f3_rules(ruleset, cfrom, cto, cost);
+  INSERT INTO f3_rules(ruleset, cfrom, cto, cost) VALUES(0, 'x','y', 10);
+  INSERT INTO f3_rules(ruleset, cfrom, cto, cost) VALUES(1, 'a','b', 10);
+  CREATE VIRTUAL TABLE aux.f3 USING fuzzer(f3_rules);
+  SELECT word FROM f3 WHERE word MATCH 'ax'
+} {ax ay}
+
+#-------------------------------------------------------------------------
+#
+#  1.5.1 - Check things work with a fuzzer data table name that requires
+#          quoting. Also that NULL entries in the "from" column of the
+#          data table are treated as zero length strings ('').
+#
+#  1.5.2 - Check that no-op rules (i.e. C->C) are ignored. Test NULL in
+#          the "to" column of a fuzzer data table.
+#  
+#  1.5.3 - Test out-of-range values for the cost field of the data table.
+#
+#  1.5.4 - Test out-of-range values for the string fields of the data table.
+#
+#  1.5.5 - Test out-of-range values for the ruleset field of the data table.
+#
+do_execsql_test 5.1 {
+  CREATE TABLE "fuzzer [x] rules table"(a, b, c, d);
+  INSERT INTO "fuzzer [x] rules table" VALUES(0, NULL, 'abc', 10);
+  CREATE VIRTUAL TABLE x USING fuzzer('fuzzer [x] rules table');
+  SELECT word, distance FROM x WHERE word MATCH '123' LIMIT 4;
+} {123 0 abc123 10 1abc23 10 12abc3 10}
+
+do_execsql_test 5.2 {
+  DELETE FROM "fuzzer [x] rules table";
+  INSERT INTO "fuzzer [x] rules table" VALUES(0, 'x', NULL, 20);
+  INSERT INTO "fuzzer [x] rules table" VALUES(0, NULL, NULL, 10);
+  INSERT INTO "fuzzer [x] rules table" VALUES(0, 'x', 'x', 10);
+
+  DROP TABLE x;
+  CREATE VIRTUAL TABLE x USING fuzzer('fuzzer [x] rules table');
+
+  SELECT word, distance FROM x WHERE word MATCH 'xx';
+} {xx 0 x 20 {} 40}
+
+do_execsql_test 5.3.1 {
+  DROP TABLE IF EXISTS x;
+  INSERT INTO "fuzzer [x] rules table" VALUES(0, 'c', 'd', 1001);
+}
+do_catchsql_test 5.3.2 {
+  CREATE VIRTUAL TABLE x USING fuzzer('fuzzer [x] rules table');
+} {1 {fuzzer: cost must be between 1 and 1000}}
+
+do_execsql_test 5.3.3 {
+  DROP TABLE IF EXISTS x;
+  DELETE FROM "fuzzer [x] rules table";
+  INSERT INTO "fuzzer [x] rules table" VALUES(0, 'd', 'c', 0);
+}
+do_catchsql_test 5.3.4 {
+  CREATE VIRTUAL TABLE x USING fuzzer('fuzzer [x] rules table');
+} {1 {fuzzer: cost must be between 1 and 1000}}
+
+do_execsql_test 5.3.5 {
+  DROP TABLE IF EXISTS x;
+  DELETE FROM "fuzzer [x] rules table";
+  INSERT INTO "fuzzer [x] rules table" VALUES(0, 'd', 'c', -20);
+}
+do_catchsql_test 5.3.6 {
+  CREATE VIRTUAL TABLE x USING fuzzer('fuzzer [x] rules table');
+} {1 {fuzzer: cost must be between 1 and 1000}}
+
+do_execsql_test 5.4.1 {
+  DROP TABLE IF EXISTS x;
+  DELETE FROM "fuzzer [x] rules table";
+  INSERT INTO "fuzzer [x] rules table" VALUES(
+    0, 'x', '12345678901234567890123456789012345678901234567890', 2
+  );
+  CREATE VIRTUAL TABLE x USING fuzzer('fuzzer [x] rules table');
+  SELECT word FROM x WHERE word MATCH 'x';
+} {x 12345678901234567890123456789012345678901234567890}
+
+do_execsql_test 5.4.2 {
+  DROP TABLE IF EXISTS x;
+  DELETE FROM "fuzzer [x] rules table";
+  INSERT INTO "fuzzer [x] rules table" VALUES(
+    0, 'x', '123456789012345678901234567890123456789012345678901', 2
+  );
+} 
+do_catchsql_test 5.4.3 {
+  CREATE VIRTUAL TABLE x USING fuzzer('fuzzer [x] rules table');
+} {1 {fuzzer: maximum string length is 50}}
+
+do_execsql_test 5.4.4 {
+  DROP TABLE IF EXISTS x;
+  DELETE FROM "fuzzer [x] rules table";
+  INSERT INTO "fuzzer [x] rules table" VALUES(
+    0, '123456789012345678901234567890123456789012345678901', 'x', 2
+  );
+} 
+do_catchsql_test 5.4.5 {
+  CREATE VIRTUAL TABLE x USING fuzzer('fuzzer [x] rules table');
+} {1 {fuzzer: maximum string length is 50}}
+
+do_execsql_test 5.5.1 {
+  DROP TABLE IF EXISTS x;
+  DELETE FROM "fuzzer [x] rules table";
+  INSERT INTO "fuzzer [x] rules table" VALUES(-1, 'x', 'y', 2);
+} 
+do_catchsql_test 5.5.2 {
+  CREATE VIRTUAL TABLE x USING fuzzer('fuzzer [x] rules table');
+} {1 {fuzzer: ruleset must be between 0 and 2147483647}}
+
+do_execsql_test 5.5.3 {
+  DROP TABLE IF EXISTS x;
+  DELETE FROM "fuzzer [x] rules table";
+  INSERT INTO "fuzzer [x] rules table" VALUES((1<<32)+100, 'x', 'y', 2);
+} 
+do_catchsql_test 5.5.4 {
+  CREATE VIRTUAL TABLE x USING fuzzer('fuzzer [x] rules table');
+} {1 {fuzzer: ruleset must be between 0 and 2147483647}}
+
+#-------------------------------------------------------------------------
+# Test using different types of quotes with CREATE VIRTUAL TABLE 
+# arguments.
+#
+do_execsql_test 7.1 {
+  CREATE TABLE [x2 "rules] (a, b, c, d);
+  INSERT INTO [x2 "rules] VALUES(0, 'a', 'b', 5);
+}
+foreach {tn sql} {
+  1 { CREATE VIRTUAL TABLE x2 USING fuzzer( [x2 "rules] ) }
+  2 { CREATE VIRTUAL TABLE x2 USING fuzzer( "x2 ""rules" ) }
+  3 { CREATE VIRTUAL TABLE x2 USING fuzzer( 'x2 "rules' ) }
+  4 { CREATE VIRTUAL TABLE x2 USING fuzzer( `x2 "rules` ) }
+} {
+  do_execsql_test 7.2.$tn.1 { DROP TABLE IF EXISTS x2 }
+  do_execsql_test 7.2.$tn.2 $sql
+  do_execsql_test 7.2.$tn.3 { 
+    SELECT word FROM x2 WHERE word MATCH 'aaa' 
+  } {aaa baa aba aab bab abb bba bbb}
+}
+
+#-------------------------------------------------------------------------
+# Test using a fuzzer table in different contexts.
+#
+do_execsql_test 8.1 {
+  CREATE TABLE x3_rules(rule_set, cFrom, cTo, cost);
+  INSERT INTO x3_rules VALUES(2, 'a', 'x', 10);
+  INSERT INTO x3_rules VALUES(2, 'a', 'y',  9);
+  INSERT INTO x3_rules VALUES(2, 'a', 'z',  8);
+  CREATE VIRTUAL TABLE x3 USING fuzzer(x3_rules);
+}
+
+do_execsql_test 8.2.1 {
+  SELECT cFrom, cTo, word 
+    FROM x3_rules CROSS JOIN x3 
+    WHERE word MATCH 'a' AND cost=distance AND ruleset=2
+    ORDER BY +cTo;
+} {a x x a y y a z z}
+
+do_execsql_test 8.2.2 {
+  SELECT cFrom, cTo, word 
+    FROM x3 CROSS JOIN x3_rules
+    WHERE word MATCH 'a' AND cost=distance AND ruleset=2
+    ORDER BY +cTo DESC
+} {a z z a y y a x x}
+
+do_execsql_test 8.2.3 {
+  SELECT cFrom, cTo, word 
+    FROM x3_rules, x3 
+    WHERE word MATCH 'a' AND cost=distance AND ruleset=2
+    ORDER BY +cTo DESC;
+} {a z z a y y a x x}
+
+do_execsql_test 8.2.4 {
+  SELECT cFrom, cTo, word 
+    FROM x3, x3_rules
+    WHERE word MATCH 'a' AND cost=distance AND ruleset=2
+    ORDER BY +cTo DESC;
+} {a z z a y y a x x}
+
+do_execsql_test 8.2.5 {
+  CREATE INDEX i1 ON x3_rules(cost);
+  SELECT cFrom, cTo, word 
+    FROM x3_rules, x3 
+    WHERE word MATCH 'a' AND cost=distance AND ruleset=2
+    ORDER BY +cTo DESC;
+} {a z z a y y a x x}
+
+do_execsql_test 8.2.5 {
+  SELECT word FROM x3_rules, x3 WHERE word MATCH x3_rules.cFrom AND ruleset=2
+} {a z y x a z y x a z y x}
+
+do_execsql_test 8.2.6 {
+  SELECT word FROM x3_rules, x3 
+  WHERE word MATCH x3_rules.cFrom 
+    AND ruleset=2 
+    AND x3_rules.cost=8;
+} {a z y x}
+
+do_execsql_test 8.2.7 {
+  CREATE TABLE t1(a, b);
+  CREATE INDEX i2 ON t1(b);
+  SELECT word, distance FROM x3, t1 
+    WHERE x3.word MATCH t1.a AND ruleset=2 AND distance=t1.b;
+} {}
+
+do_execsql_test 8.2.8 {
+  INSERT INTO x3_rules VALUES(1, 'a', 't',  5);
+  INSERT INTO x3_rules VALUES(1, 'a', 'u',  4);
+  INSERT INTO x3_rules VALUES(1, 'a', 'v',  3);
+  DROP TABLE x3;
+  CREATE VIRTUAL TABLE x3 USING fuzzer(x3_rules);
+  SELECT * FROM x3_rules;
+} {
+  2 a x 10 
+  2 a y 9 
+  2 a z 8 
+  1 a t 5 
+  1 a u 4 
+  1 a v 3
+}
+
+do_catchsql_test 8.2.9 {
+  SELECT word FROM x3 WHERE ruleset=2 AND word MATCH 'a' AND WORD MATCH 'b';
+} {1 {unable to use function MATCH in the requested context}}
+
+do_execsql_test 8.2.10 {
+  SELECT word FROM x3 WHERE ruleset=1 AND word MATCH 'a'
+} {a v u t}
+
+# The term "ruleset<=1" is not handled by the fuzzer module. Instead, it
+# is handled by SQLite, which assumes that all rows have a NULL value in
+# the ruleset column. Since NULL<=1 is never true, this query returns
+# no rows.
+do_execsql_test 8.2.11 {
+  SELECT word FROM x3 WHERE ruleset<=1 AND word MATCH 'a'
+} {}
+
+do_execsql_test 8.2.12 {
+  SELECT word FROM x3 WHERE ruleset=1 AND word MATCH 'a' ORDER BY distance ASC;
+} {a v u t}
+
+do_execsql_test 8.2.13 {
+  SELECT word FROM x3 WHERE ruleset=1 AND word MATCH 'a' ORDER BY distance DESC;
+} {t u v a}
+
+do_execsql_test 8.2.13 {
+  SELECT word FROM x3 WHERE ruleset=1 AND word MATCH 'a' ORDER BY word ASC;
+} {a t u v}
+
+do_execsql_test 8.2.14 {
+  SELECT word FROM x3 WHERE ruleset=1 AND word MATCH 'a' ORDER BY word DESC;
+} {v u t a}
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test 9.1 {
+  CREATE TABLE x4_rules(a, b, c, d);
+  INSERT INTO x4_rules VALUES(0, 'a', 'b', 10);
+  INSERT INTO x4_rules VALUES(0, 'a', 'c', 11);
+  INSERT INTO x4_rules VALUES(0, 'bx', 'zz', 20);
+  INSERT INTO x4_rules VALUES(0, 'cx', 'yy', 15);
+  INSERT INTO x4_rules VALUES(0, 'zz', '!!', 50);
+  CREATE VIRTUAL TABLE x4 USING fuzzer(x4_rules);
+}
+
+do_execsql_test 9.2 {
+  SELECT word, distance FROM x4 WHERE word MATCH 'ax';
+} {ax 0 bx 10 cx 11 yy 26 zz 30 !! 80}
+
+
+do_execsql_test 10.1 {
+  CREATE TABLE x5_rules(a, b, c, d);
+  CREATE VIRTUAL TABLE x5 USING fuzzer(x5_rules);
+}
+
+do_execsql_test 10.2 {
+  SELECT word, distance FROM x5 WHERE word MATCH 
+    'aaaaaaaaaXaaaaaaaaaXaaaaaaaaaXaaaaaaaaaXaaaaaaaaa' || 
+    'aaaaaaaaaXaaaaaaaaaXaaaaaaaaaXaaaaaaaaaXaaaaaaaaa' || 
+    'aaaaaaaaaXaaaaaaaaaXaaaaaaaaaXaaaaaaaaaXaaaaaaaaa'
+} {}
+
+do_execsql_test 10.3 {
+  INSERT INTO x5_rules VALUES(0, 'a', '0.1.2.3.4.5.6.7.8.9.a', 1);
+  DROP TABLE x5;
+  CREATE VIRTUAL TABLE x5 USING fuzzer(x5_rules);
+  SELECT length(word) FROM x5 WHERE word MATCH 'a' LIMIT 50;
+} {1 21 41 61 81}
+
+finish_test
diff --git a/test/fuzzer2.test b/test/fuzzer2.test
new file mode 100644
index 0000000000000000000000000000000000000000..44ee9e312c540cdf0a9d9b32ffed3f3f251d4ac6
--- /dev/null
+++ b/test/fuzzer2.test
@@ -0,0 +1,72 @@
+# 2016 February 4
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# The focus of the tests is the word-fuzzer virtual table. The tests
+# in this file are slower than those in fuzzer1.test. So this file does
+# not run as part of veryquick.test etc.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+set ::testprefix fuzzer2
+load_static_extension db fuzzer
+
+#-------------------------------------------------------------------------
+# This test uses a fuzzer table with many rules. There is one rule to
+# map each possible two character string, where characters are lower-case
+# letters used in the English language, to all other possible two character
+# strings. In total, (26^4)-(26^2) mappings (the subtracted term represents
+# the no-op mappings discarded automatically by the fuzzer).
+#
+#
+do_execsql_test 1.1.1 {
+  DROP TABLE IF EXISTS x1;
+  DROP TABLE IF EXISTS x1_rules;
+  CREATE TABLE x1_rules(ruleset, cFrom, cTo, cost);
+}
+puts "This test is slow - perhaps around 7 seconds on an average pc"
+do_test 1.1.2 {
+  set LETTERS {a b c d e f g h i j k l m n o p q r s t u v w x y z}
+  set cost 1
+  db transaction {
+    foreach c1 $LETTERS { 
+      foreach c2 $LETTERS { 
+        foreach c3 $LETTERS { 
+          foreach c4 $LETTERS { 
+            db eval {INSERT INTO x1_rules VALUES(0, $c1||$c2, $c3||$c4, $cost)}
+            set cost [expr ($cost%1000) + 1]
+          }
+        }
+      }
+    }
+    db eval {UPDATE x1_rules SET cost = 20 WHERE cost<20 AND cFrom!='xx'}
+  }
+} {}
+
+do_execsql_test 1.2 {
+  SELECT count(*) FROM x1_rules WHERE cTo!=cFrom;
+} [expr 26*26*26*26 - 26*26]
+
+do_execsql_test 1.2.1 {
+  CREATE VIRTUAL TABLE x1 USING fuzzer(x1_rules);
+  SELECT word FROM x1 WHERE word MATCH 'xx' LIMIT 10;
+} {xx hw hx hy hz ia ib ic id ie}
+do_execsql_test 1.2.2 {
+  SELECT cTo FROM x1_rules WHERE cFrom='xx' 
+  ORDER BY cost asc, rowid asc LIMIT 9;
+} {hw hx hy hz ia ib ic id ie}
+
+finish_test
diff --git a/test/fuzzerfault.test b/test/fuzzerfault.test
new file mode 100644
index 0000000000000000000000000000000000000000..e281cb592e6c0acd5dc400e032489e43e297b260
--- /dev/null
+++ b/test/fuzzerfault.test
@@ -0,0 +1,111 @@
+# 2012 February 21
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for TCL interface to the
+# SQLite library. 
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable !vtab { finish_test ; return }
+set ::testprefix fuzzerfault
+
+load_static_extension db fuzzer
+
+do_test 1-pre1 {
+  execsql {
+    CREATE TABLE x1_rules(ruleset, cFrom, cTo, cost);
+    INSERT INTO x1_rules VALUES(0, 'a', 'b', 1);
+    INSERT INTO x1_rules VALUES(0, 'a', 'c', 2);
+    INSERT INTO x1_rules VALUES(0, 'a', 'd', 3);
+  }
+  faultsim_save_and_close
+} {}
+do_faultsim_test 1 -prep {
+  faultsim_restore_and_reopen
+  load_static_extension db fuzzer
+} -body {
+  execsql { 
+    CREATE VIRTUAL TABLE x1 USING fuzzer(x1_rules);
+    SELECT word FROM x1 WHERE word MATCH 'xax';
+  }
+} -test {
+  faultsim_test_result {0 {xax xbx xcx xdx}}               \
+                       {1 {vtable constructor failed: x1}}
+}
+
+do_test 2-pre1 {
+  faultsim_delete_and_reopen
+  load_static_extension db fuzzer
+  execsql {
+    CREATE TABLE x2_rules(ruleset, cFrom, cTo, cost);
+    INSERT INTO x2_rules VALUES(0, 'a', 'x', 1);
+    INSERT INTO x2_rules VALUES(0, 'b', 'x', 2);
+    INSERT INTO x2_rules VALUES(0, 'c', 'x', 3);
+    CREATE VIRTUAL TABLE x2 USING fuzzer(x2_rules);
+  }
+  faultsim_save_and_close
+} {}
+
+do_faultsim_test 2 -prep {
+  faultsim_restore_and_reopen
+  load_static_extension db fuzzer
+} -body {
+  execsql { 
+    SELECT count(*) FROM x2 WHERE word MATCH 'abc';
+  }
+} -test {
+  faultsim_test_result {0 8} {1 {vtable constructor failed: x2}}
+}
+
+do_test 3-pre1 {
+  faultsim_delete_and_reopen
+  execsql {
+    CREATE TABLE x1_rules(ruleset, cFrom, cTo, cost);
+    INSERT INTO x1_rules VALUES(0, 'a', 
+      '123456789012345678901234567890a1234567890123456789', 10
+    );
+  }
+  faultsim_save_and_close
+} {}
+
+do_faultsim_test 3 -prep {
+  faultsim_restore_and_reopen
+  load_static_extension db fuzzer
+} -body {
+  execsql { 
+    CREATE VIRTUAL TABLE x1 USING fuzzer(x1_rules);
+    SELECT count(*) FROM (SELECT * FROM x1 WHERE word MATCH 'a' LIMIT 2);
+  }
+} -test {
+  faultsim_test_result {0 2} {1 {vtable constructor failed: x1}}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 4.0 {
+  CREATE TABLE t1_a(a INTEFDR PRIMARY KEY, b TEXT);
+  CREATE TABLE t3_a(k FnTEGER PRIMARY KEY, v TEXT);
+  CREATE TABLE t3_b(k INTEÀ5R PRIMARY KEY, v TEXT);
+  CREATE VIEW t3 AS SELECT * FROM t3_a UNION ALL SELECT * FROM t3_b;
+}
+faultsim_save_and_close
+
+do_faultsim_test 4 -faults oom-t* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { 
+    SELECT 1 FROM t1_a LEFT JOIN t3 ON ((1+1) AND k=1)
+  }
+} -test {
+  faultsim_test_result {0 {}} 
+}
+
+finish_test
diff --git a/test/fuzzinvariants.c b/test/fuzzinvariants.c
new file mode 100644
index 0000000000000000000000000000000000000000..c8aae6e3dd65a35ea370b34d222da48d924b0cae
--- /dev/null
+++ b/test/fuzzinvariants.c
@@ -0,0 +1,557 @@
+/*
+** 2022-06-14
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** This library is used by fuzzcheck to test query invariants.
+**
+** An sqlite3_stmt is passed in that has just returned SQLITE_ROW.  This
+** routine does:
+**
+**     *   Record the output of the current row
+**     *   Construct an alternative query that should return the same row
+**     *   Run the alternative query and verify that it does in fact return
+**         the same row
+**
+*/
+#include "sqlite3.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+
+/* Forward references */
+static char *fuzz_invariant_sql(sqlite3_stmt*, int);
+static int sameValue(sqlite3_stmt*,int,sqlite3_stmt*,int,sqlite3_stmt*);
+static void reportInvariantFailed(
+  sqlite3_stmt *pOrig,   /* The original query */
+  sqlite3_stmt *pTest,   /* The alternative test query with a missing row */
+  int iRow,              /* Row number in pOrig */
+  unsigned int dbOpt,    /* Optimization flags on pOrig */
+  int noOpt              /* True if opt flags inverted for pTest */
+);
+
+/*
+** Special parameter binding, for testing and debugging purposes.
+**
+**     $int_NNN      ->   integer value NNN
+**     $text_TTTT    ->   floating point value TTT with destructor
+*/
+static void bindDebugParameters(sqlite3_stmt *pStmt){
+  int nVar = sqlite3_bind_parameter_count(pStmt);
+  int i;
+  for(i=1; i<=nVar; i++){
+    const char *zVar = sqlite3_bind_parameter_name(pStmt, i);
+    if( zVar==0 ) continue;
+    if( strncmp(zVar, "$int_", 5)==0 ){
+      sqlite3_bind_int(pStmt, i, atoi(&zVar[5]));
+    }else
+    if( strncmp(zVar, "$text_", 6)==0 ){
+      size_t szVar = strlen(zVar);
+      char *zBuf = sqlite3_malloc64( szVar-5 );
+      if( zBuf ){
+        memcpy(zBuf, &zVar[6], szVar-5);
+        sqlite3_bind_text64(pStmt, i, zBuf, szVar-6, sqlite3_free, SQLITE_UTF8);
+      }
+    }
+  }
+}
+
+/*
+** Do an invariant check on pStmt.  iCnt determines which invariant check to
+** perform.  The first check is iCnt==0.
+**
+** *pbCorrupt is a flag that, if true, indicates that the database file
+** is known to be corrupt.  A value of non-zero means "yes, the database
+** is corrupt".  A zero value means "we do not know whether or not the
+** database is corrupt".  The value might be set prior to entry, or this
+** routine might set the value.
+**
+** Return values:
+**
+**     SQLITE_OK          This check was successful.
+**
+**     SQLITE_DONE        iCnt is out of range.  The caller typically sets
+**                        up a loop on iCnt starting with zero, and increments
+**                        iCnt until this code is returned.
+**
+**     SQLITE_CORRUPT     The invariant failed, but the underlying database
+**                        file is indicating that it is corrupt, which might
+**                        be the cause of the malfunction.  The *pCorrupt
+**                        value will also be set.
+**
+**     SQLITE_INTERNAL    The invariant failed, and the database file is not
+**                        corrupt.  (This never happens because this function
+**                        will call abort() following an invariant failure.)
+**
+**     (other)            Some other kind of error occurred.
+*/
+int fuzz_invariant(
+  sqlite3 *db,            /* The database connection */
+  sqlite3_stmt *pStmt,    /* Test statement stopped on an SQLITE_ROW */
+  int iCnt,               /* Invariant sequence number, starting at 0 */
+  int iRow,               /* Current row number */
+  int nRow,               /* Number of output rows from pStmt */
+  int *pbCorrupt,         /* IN/OUT: Flag indicating a corrupt database file */
+  int eVerbosity,         /* How much debugging output */
+  unsigned int dbOpt      /* Default optimization flags */
+){
+  char *zTest;
+  sqlite3_stmt *pTestStmt = 0;
+  int rc;
+  int i;
+  int nCol;
+  int nParam;
+  int noOpt = (iCnt%3)==0;
+
+  if( *pbCorrupt ) return SQLITE_DONE;
+  nParam = sqlite3_bind_parameter_count(pStmt);
+  if( nParam>100 ) return SQLITE_DONE;
+  zTest = fuzz_invariant_sql(pStmt, iCnt);
+  if( zTest==0 ) return SQLITE_DONE;
+  if( noOpt ){
+    sqlite3_test_control(SQLITE_TESTCTRL_OPTIMIZATIONS, db, ~dbOpt);
+  }
+  rc = sqlite3_prepare_v2(db, zTest, -1, &pTestStmt, 0);
+  if( noOpt ){
+    sqlite3_test_control(SQLITE_TESTCTRL_OPTIMIZATIONS, db, dbOpt);
+  }
+  if( rc ){
+    if( eVerbosity ){
+      printf("invariant compile failed: %s\n%s\n",
+             sqlite3_errmsg(db), zTest);
+    }
+    sqlite3_free(zTest);
+    sqlite3_finalize(pTestStmt);
+    return rc;
+  }
+  sqlite3_free(zTest);
+  bindDebugParameters(pTestStmt);
+  nCol = sqlite3_column_count(pStmt);
+  for(i=0; i<nCol; i++){
+    rc = sqlite3_bind_value(pTestStmt,i+1+nParam,sqlite3_column_value(pStmt,i));
+    if( rc!=SQLITE_OK && rc!=SQLITE_RANGE ){
+      sqlite3_finalize(pTestStmt);
+      return rc;
+    }
+  }
+  if( eVerbosity>=2 ){
+    char *zSql = sqlite3_expanded_sql(pTestStmt);
+    printf("invariant-sql row=%d #%d:\n%s\n", iRow, iCnt, zSql);
+    sqlite3_free(zSql);
+  }
+  while( (rc = sqlite3_step(pTestStmt))==SQLITE_ROW ){
+    for(i=0; i<nCol; i++){
+      if( !sameValue(pStmt, i, pTestStmt, i, 0) ) break;
+    }
+    if( i>=nCol ) break;
+  }
+  if( rc==SQLITE_DONE ){
+    /* No matching output row found */
+    sqlite3_stmt *pCk = 0;
+    int iOrigRSO;
+
+
+    /* This is not a fault if the database file is corrupt, because anything
+    ** can happen with a corrupt database file */
+    rc = sqlite3_prepare_v2(db, "PRAGMA integrity_check", -1, &pCk, 0);
+    if( rc ){
+      sqlite3_finalize(pCk);
+      sqlite3_finalize(pTestStmt);
+      return rc;
+    }
+    if( eVerbosity>=2 ){
+      char *zSql = sqlite3_expanded_sql(pCk);
+      printf("invariant-validity-check #1:\n%s\n", zSql);
+      sqlite3_free(zSql);
+    }
+
+    rc = sqlite3_step(pCk);
+    if( rc!=SQLITE_ROW
+     || sqlite3_column_text(pCk, 0)==0
+     || strcmp((const char*)sqlite3_column_text(pCk,0),"ok")!=0
+    ){
+      *pbCorrupt = 1;
+      sqlite3_finalize(pCk);
+      sqlite3_finalize(pTestStmt);
+      return SQLITE_CORRUPT;
+    }
+    sqlite3_finalize(pCk);
+
+    /*
+    ** If inverting the scan order also results in a miss, assume that the
+    ** query is ambiguous and do not report a fault.
+    */
+    sqlite3_db_config(db, SQLITE_DBCONFIG_REVERSE_SCANORDER, -1, &iOrigRSO);
+    sqlite3_db_config(db, SQLITE_DBCONFIG_REVERSE_SCANORDER, !iOrigRSO, 0);
+    sqlite3_prepare_v2(db, sqlite3_sql(pStmt), -1, &pCk, 0);
+    sqlite3_db_config(db, SQLITE_DBCONFIG_REVERSE_SCANORDER, iOrigRSO, 0);
+    if( eVerbosity>=2 ){
+      char *zSql = sqlite3_expanded_sql(pCk);
+      printf("invariant-validity-check #2:\n%s\n", zSql);
+      sqlite3_free(zSql);
+    }
+    bindDebugParameters(pCk);
+    while( (rc = sqlite3_step(pCk))==SQLITE_ROW ){
+      for(i=0; i<nCol; i++){
+        if( !sameValue(pStmt, i, pTestStmt, i, 0) ) break;
+      }
+      if( i>=nCol ) break;
+    }
+    sqlite3_finalize(pCk);
+    if( rc==SQLITE_DONE ){
+      sqlite3_finalize(pTestStmt);
+      return SQLITE_DONE;
+    }
+
+    /* The original sameValue() comparison assumed a collating sequence
+    ** of "binary".  It can sometimes get an incorrect result for different
+    ** collating sequences.  So rerun the test with no assumptions about
+    ** collations.
+    */
+    rc = sqlite3_prepare_v2(db,
+       "SELECT ?1=?2 OR ?1=?2 COLLATE nocase OR ?1=?2 COLLATE rtrim",
+       -1, &pCk, 0);
+    if( rc==SQLITE_OK ){
+      if( eVerbosity>=2 ){
+        char *zSql = sqlite3_expanded_sql(pCk);
+        printf("invariant-validity-check #3:\n%s\n", zSql);
+        sqlite3_free(zSql);
+      }
+
+      sqlite3_reset(pTestStmt);
+      bindDebugParameters(pCk);
+      while( (rc = sqlite3_step(pTestStmt))==SQLITE_ROW ){
+        for(i=0; i<nCol; i++){
+          if( !sameValue(pStmt, i, pTestStmt, i, pCk) ) break;
+        }
+        if( i>=nCol ){
+          sqlite3_finalize(pCk);
+          goto not_a_fault;
+        }
+      }
+    }
+    sqlite3_finalize(pCk);
+
+    /* Invariants do not necessarily work if there are virtual tables
+    ** involved in the query */
+    rc = sqlite3_prepare_v2(db, 
+            "SELECT 1 FROM bytecode(?1) WHERE opcode='VOpen'", -1, &pCk, 0);
+    if( rc==SQLITE_OK ){
+      if( eVerbosity>=2 ){
+        char *zSql = sqlite3_expanded_sql(pCk);
+        printf("invariant-validity-check #4:\n%s\n", zSql);
+        sqlite3_free(zSql);
+      }
+      sqlite3_bind_pointer(pCk, 1, pStmt, "stmt-pointer", 0);
+      rc = sqlite3_step(pCk);
+    }
+    sqlite3_finalize(pCk);
+    if( rc==SQLITE_DONE ){
+      reportInvariantFailed(pStmt, pTestStmt, iRow, dbOpt, noOpt);
+      return SQLITE_INTERNAL;
+    }else if( eVerbosity>0 ){
+      printf("invariant-error ignored due to the use of virtual tables\n");
+    }
+  }
+not_a_fault:
+  sqlite3_finalize(pTestStmt);
+  return SQLITE_OK;
+}
+
+/*
+** Generate SQL used to test a statement invariant.
+**
+** Return 0 if the iCnt is out of range.
+**
+** iCnt meanings:
+**
+**   0     SELECT * FROM (<query>)
+**   1     SELECT DISTINCT * FROM (<query>)
+**   2     SELECT * FROM (<query>) WHERE ORDER BY 1
+**   3     SELECT DISTINCT * FROM (<query>) ORDER BY 1
+**   4     SELECT * FROM (<query>) WHERE <all-columns>=<all-values>
+**   5     SELECT DISTINCT * FROM (<query>) WHERE <all-columns=<all-values
+**   6     SELECT * FROM (<query>) WHERE <all-column>=<all-value> ORDER BY 1
+**   7     SELECT DISTINCT * FROM (<query>) WHERE <all-column>=<all-value>
+**                           ORDER BY 1
+**   N+0   SELECT * FROM (<query>) WHERE <nth-column>=<value>
+**   N+1   SELECT DISTINCT * FROM (<query>) WHERE <Nth-column>=<value>
+**   N+2   SELECT * FROM (<query>) WHERE <Nth-column>=<value> ORDER BY 1
+**   N+3   SELECT DISTINCT * FROM (<query>) WHERE <Nth-column>=<value>
+**                           ORDER BY N
+**
+*/
+static char *fuzz_invariant_sql(sqlite3_stmt *pStmt, int iCnt){
+  const char *zIn;
+  size_t nIn;
+  const char *zAnd = "WHERE";
+  int i, j;
+  sqlite3_str *pTest;
+  sqlite3_stmt *pBase = 0;
+  sqlite3 *db = sqlite3_db_handle(pStmt);
+  int rc;
+  int nCol = sqlite3_column_count(pStmt);
+  int mxCnt;
+  int bDistinct = 0;
+  int bOrderBy = 0;
+  int nParam = sqlite3_bind_parameter_count(pStmt);
+
+  switch( iCnt % 4 ){
+    case 1:  bDistinct = 1;              break;
+    case 2:  bOrderBy = 1;               break;
+    case 3:  bDistinct = bOrderBy = 1;   break;
+  }
+  iCnt /= 4;
+  mxCnt = nCol;
+  if( iCnt<0 || iCnt>mxCnt ) return 0;
+  zIn = sqlite3_sql(pStmt);
+  if( zIn==0 ) return 0;
+  nIn = strlen(zIn);
+  while( nIn>0 && (isspace(zIn[nIn-1]) || zIn[nIn-1]==';') ) nIn--;
+  if( strchr(zIn, '?') ) return 0;
+  pTest = sqlite3_str_new(0);
+  sqlite3_str_appendf(pTest, "SELECT %s* FROM (",  
+                      bDistinct ? "DISTINCT " : "");
+  sqlite3_str_append(pTest, zIn, (int)nIn);
+  sqlite3_str_append(pTest, ")", 1);
+  rc = sqlite3_prepare_v2(db, sqlite3_str_value(pTest), -1, &pBase, 0);
+  if( rc ){
+    sqlite3_finalize(pBase);
+    pBase = pStmt;
+  }
+  bindDebugParameters(pBase);
+  for(i=0; i<sqlite3_column_count(pStmt); i++){
+    const char *zColName = sqlite3_column_name(pBase,i);
+    const char *zSuffix = zColName ? strrchr(zColName, ':') : 0;
+    if( zSuffix 
+     && isdigit(zSuffix[1])
+     && (zSuffix[1]>'3' || isdigit(zSuffix[2]))
+    ){
+      /* This is a randomized column name and so cannot be used in the
+      ** WHERE clause. */
+      continue;
+    }
+    for(j=0; j<i; j++){
+      const char *zPrior = sqlite3_column_name(pBase, j);
+      if( sqlite3_stricmp(zPrior, zColName)==0 ) break;
+    }
+    if( j<i ){
+      /* Duplicate column name */
+      continue;
+    }
+    if( iCnt==0 ) continue;
+    if( iCnt>1 && i+2!=iCnt ) continue;
+    if( zColName==0 ) continue;
+    if( sqlite3_column_type(pStmt, i)==SQLITE_NULL ){
+      sqlite3_str_appendf(pTest, " %s \"%w\" ISNULL", zAnd, zColName);
+    }else{
+      sqlite3_str_appendf(pTest, " %s \"%w\"=?%d", zAnd, zColName, 
+                          i+1+nParam);
+    }
+    zAnd = "AND";
+  }
+  if( pBase!=pStmt ) sqlite3_finalize(pBase);
+  if( bOrderBy ){
+    sqlite3_str_appendf(pTest, " ORDER BY %d", iCnt>2 ? iCnt-1 : 1);
+  }
+  return sqlite3_str_finish(pTest);
+}
+
+/*
+** Return true if and only if v1 and is the same as v2.
+*/
+static int sameValue(
+  sqlite3_stmt *pS1, int i1,       /* Value to text on the left */
+  sqlite3_stmt *pS2, int i2,       /* Value to test on the right */
+  sqlite3_stmt *pTestCompare       /* COLLATE comparison statement or NULL */
+){
+  int x = 1;
+  int t1 = sqlite3_column_type(pS1,i1);
+  int t2 = sqlite3_column_type(pS2,i2);
+  if( t1!=t2 ){
+    if( (t1==SQLITE_INTEGER && t2==SQLITE_FLOAT)
+     || (t1==SQLITE_FLOAT && t2==SQLITE_INTEGER)
+    ){
+      /* Comparison of numerics is ok */
+    }else{
+      return 0;
+    }
+  }
+  switch( sqlite3_column_type(pS1,i1) ){
+    case SQLITE_INTEGER: {
+      x =  sqlite3_column_int64(pS1,i1)==sqlite3_column_int64(pS2,i2);
+      break;
+    }
+    case SQLITE_FLOAT: {
+      x = sqlite3_column_double(pS1,i1)==sqlite3_column_double(pS2,i2);
+      break;
+    }
+    case SQLITE_TEXT: {
+      int e1 = sqlite3_value_encoding(sqlite3_column_value(pS1,i1));
+      int e2 = sqlite3_value_encoding(sqlite3_column_value(pS2,i2));
+      if( e1!=e2 ){
+        const char *z1 = (const char*)sqlite3_column_text(pS1,i1);
+        const char *z2 = (const char*)sqlite3_column_text(pS2,i2);
+        x = ((z1==0 && z2==0) || (z1!=0 && z2!=0 && strcmp(z1,z1)==0));
+        printf("Encodings differ.  %d on left and %d on right\n", e1, e2);
+        abort();
+      }
+      if( pTestCompare ){
+        sqlite3_bind_value(pTestCompare, 1, sqlite3_column_value(pS1,i1));
+        sqlite3_bind_value(pTestCompare, 2, sqlite3_column_value(pS2,i2));
+        x = sqlite3_step(pTestCompare)==SQLITE_ROW
+                      && sqlite3_column_int(pTestCompare,0)!=0;
+        sqlite3_reset(pTestCompare);
+        break;
+      }
+      if( e1!=SQLITE_UTF8 ){
+        int len1 = sqlite3_column_bytes16(pS1,i1);
+        const unsigned char *b1 = sqlite3_column_blob(pS1,i1);
+        int len2 = sqlite3_column_bytes16(pS2,i2);
+        const unsigned char *b2 = sqlite3_column_blob(pS2,i2);
+        if( len1!=len2 ){
+          x = 0;
+        }else if( len1==0 ){
+          x = 1;
+        }else{
+          x = (b1!=0 && b2!=0 && memcmp(b1,b2,len1)==0);
+        }
+        break;
+      }
+      /* Fall through into the SQLITE_BLOB case */
+    }
+    case SQLITE_BLOB: {
+      int len1 = sqlite3_column_bytes(pS1,i1);
+      const unsigned char *b1 = sqlite3_column_blob(pS1,i1);
+      int len2 = sqlite3_column_bytes(pS2,i2);
+      const unsigned char *b2 = sqlite3_column_blob(pS2,i2);
+      if( len1!=len2 ){
+        x = 0;
+      }else if( len1==0 ){
+        x = 1;
+      }else{
+        x = (b1!=0 && b2!=0 && memcmp(b1,b2,len1)==0);
+      }
+      break;
+    }
+  }
+  return x;
+}
+
+/*
+** Print binary data as hex
+*/
+static void printHex(const unsigned char *a, int n, int mx){
+  int j;
+  for(j=0; j<mx && j<n; j++){
+    printf("%02x", a[j]);
+  }
+  if( j<n ) printf("...");
+}
+
+/*
+** Print a single row from the prepared statement
+*/
+static void printRow(sqlite3_stmt *pStmt, int iRow){
+  int i, n, nCol;
+  unsigned const char *data;
+  nCol = sqlite3_column_count(pStmt);
+  for(i=0; i<nCol; i++){
+    printf("row%d.col%d = ", iRow, i);
+    switch( sqlite3_column_type(pStmt, i) ){
+      case SQLITE_NULL: {
+        printf("NULL\n");
+        break;
+      }
+      case SQLITE_INTEGER: {
+        printf("(integer) %lld\n", sqlite3_column_int64(pStmt, i));
+        break;
+      }
+      case SQLITE_FLOAT: {
+        printf("(float) %f\n", sqlite3_column_double(pStmt, i));
+        break;
+      }
+      case SQLITE_TEXT: {
+        switch( sqlite3_value_encoding(sqlite3_column_value(pStmt,i)) ){
+          case SQLITE_UTF8: {
+            printf("(utf8) x'");
+            n = sqlite3_column_bytes(pStmt, i);
+            data = sqlite3_column_blob(pStmt, i);
+            printHex(data, n, 35);
+            printf("'\n");
+            break;
+          }
+          case SQLITE_UTF16BE: {
+            printf("(utf16be) x'");
+            n = sqlite3_column_bytes16(pStmt, i);
+            data = sqlite3_column_blob(pStmt, i);
+            printHex(data, n, 35);
+            printf("'\n");
+            break;
+          }
+          case SQLITE_UTF16LE: {
+            printf("(utf16le) x'");
+            n = sqlite3_column_bytes16(pStmt, i);
+            data = sqlite3_column_blob(pStmt, i);
+            printHex(data, n, 35);
+            printf("'\n");
+            break;
+          }
+          default: {
+            printf("Illegal return from sqlite3_value_encoding(): %d\n",
+                sqlite3_value_encoding(sqlite3_column_value(pStmt,i)));
+            abort();
+          }
+        }
+        break;
+      }
+      case SQLITE_BLOB: {
+        n = sqlite3_column_bytes(pStmt, i);
+        data = sqlite3_column_blob(pStmt, i);
+        printf("(blob %d bytes) x'", n);
+        printHex(data, n, 35);
+        printf("'\n");
+        break;
+      }
+    }
+  }
+}
+
+/*
+** Report a failure of the invariant:  The current output row of pOrig
+** does not appear in any row of the output from pTest.
+*/
+static void reportInvariantFailed(
+  sqlite3_stmt *pOrig,   /* The original query */
+  sqlite3_stmt *pTest,   /* The alternative test query with a missing row */
+  int iRow,              /* Row number in pOrig */
+  unsigned int dbOpt,    /* Optimization flags on pOrig */
+  int noOpt              /* True if opt flags inverted for pTest */
+){
+  int iTestRow = 0;
+  printf("Invariant check failed on row %d.\n", iRow);
+  printf("Original query (opt-flags: 0x%08x) --------------------------\n",
+         dbOpt);
+  printf("%s\n", sqlite3_expanded_sql(pOrig));
+  printf("Alternative query (opt-flags: 0x%08x) -----------------------\n",
+         noOpt ? ~dbOpt : dbOpt);
+  printf("%s\n", sqlite3_expanded_sql(pTest));
+  printf("Result row that is missing from the alternative -----------------\n");
+  printRow(pOrig, iRow);
+  printf("Complete results from the alternative query ---------------------\n");
+  sqlite3_reset(pTest);
+  while( sqlite3_step(pTest)==SQLITE_ROW ){
+    iTestRow++;
+    printRow(pTest, iTestRow);
+  }
+  sqlite3_finalize(pTest);
+  abort();
+}
diff --git a/test/gcfault.test b/test/gcfault.test
new file mode 100644
index 0000000000000000000000000000000000000000..2d77f9ef2c020ed05bf44dd274cad74a52708b3b
--- /dev/null
+++ b/test/gcfault.test
@@ -0,0 +1,56 @@
+# 2016 December 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing OOM error handling within the built-in 
+# group_concat() and string_agg() functions.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix gcfault
+
+
+foreach {enc} {
+  utf16
+  utf8
+} {
+  reset_db
+  sqlite3_db_config_lookaside db 0 0 0
+  execsql "PRAGMA encoding = $enc"
+
+  do_execsql_test 1.$enc.1 {
+    CREATE TABLE s(i, s);
+    INSERT INTO s VALUES(1, ',0123456789,');
+    INSERT INTO s VALUES(2, X'2c303132333435363738392c');
+
+    CREATE TABLE e(e);
+    INSERT INTO e VALUES('v1'), ('v2');
+  } {}
+
+  do_faultsim_test 1.$enc.1 -faults oom* -body {
+    execsql { SELECT group_concat(e, (SELECT s FROM s WHERE i=1)) FROM e }
+  }
+
+  do_faultsim_test 1.$enc.2 -faults oom-t* -body {
+    execsql { SELECT string_agg(e, (SELECT s FROM s WHERE i=2)) FROM e }
+  }
+
+  do_faultsim_test 1.$enc.3 -faults oom-t* -prep {
+    set ::STMT [sqlite3_prepare db {SELECT group_concat(e, ?) FROM e} -1 dummy]
+    sqlite3_bind_text $::STMT 1 ",0123456789," 12
+  } -body {
+    while { "SQLITE_ROW"==[sqlite3_step $::STMT] } { }
+  } -test {
+    sqlite3_finalize $::STMT
+  }
+}
+
+finish_test
diff --git a/test/gencol1.test b/test/gencol1.test
new file mode 100644
index 0000000000000000000000000000000000000000..ed7ea567d4d600154c31f03861b373ca7446835c
--- /dev/null
+++ b/test/gencol1.test
@@ -0,0 +1,669 @@
+# 2019-10-31
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+# Test cases for generated columns.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# ticket 830277d9db6c3ba1 on 2019-10-31
+do_execsql_test gencol1-100 {
+  CREATE TABLE t0(c0 AS(TYPEOF(c1)), c1);
+  INSERT INTO t0(c1) VALUES(0);
+  CREATE TABLE t1(x AS (typeof(y)), y);
+  INSERT INTO t1 SELECT * FROM t0;
+  SELECT * FROM t1;
+} {integer 0}
+
+foreach {tn schema} { 
+1 {
+   CREATE TABLE t1(
+     a INT,
+     b TEXT,
+     c ANY,
+     w INT GENERATED ALWAYS AS (a*10),
+     x TEXT AS (typeof(c)),
+     y TEXT AS (substr(b,a,a+2))
+   );
+  }
+2 {
+   CREATE TABLE t1(
+     w INT GENERATED ALWAYS AS (a*10),
+     x TEXT AS (typeof(c)),
+     y TEXT AS (substr(b,a,a+2)),
+     a INT,
+     b TEXT,
+     c ANY
+   );
+  }
+3 {
+   CREATE TABLE t1(
+     w INT GENERATED ALWAYS AS (a*10),
+     a INT,
+     x TEXT AS (typeof(c)) STORED,
+     b TEXT,
+     y TEXT AS (substr(b,a,a+2)),
+     c ANY
+   );
+  }
+4 {
+   CREATE TABLE t1(
+     a INTEGER PRIMARY KEY,
+     w INT GENERATED ALWAYS AS (a*10),
+     b TEXT,
+     x TEXT AS (typeof(c)),
+     y TEXT AS (substr(b,a,a+2)) STORED,
+     c ANY
+   );
+  }
+5 {
+   CREATE TABLE t1(
+     w INT GENERATED ALWAYS AS (a*10),
+     a INT,
+     x TEXT AS (typeof(c)),
+     b TEXT,
+     y TEXT AS (substr(b,a,a+2)) STORED,
+     c ANY,
+     PRIMARY KEY(a,b)
+   ) WITHOUT ROWID;
+  }
+6 {
+   CREATE TABLE t1(
+     w INT GENERATED ALWAYS AS (m*5),
+     m INT AS (a*2) STORED,
+     a INT,
+     x TEXT AS (typeof(c)),
+     b TEXT,
+     y TEXT AS (substr(b,m/2,m/2+2)) STORED,
+     c ANY,
+     PRIMARY KEY(a,b)
+   );
+  }
+7 {
+   CREATE TABLE t1(
+     w INT GENERATED ALWAYS AS (m*5),
+     m INT AS (a*2) NOT NULL,
+     a INT,
+     x TEXT AS (typeof(c)) CHECK (x<>'blank'),
+     b TEXT,
+     y TEXT AS (substr(b,m/2,m/2+2)) STORED,
+     c ANY,
+     PRIMARY KEY(b,a)
+   ) WITHOUT ROWID;
+  }
+} {
+  catch {db close}
+  sqlite3 db :memory:
+  db eval $schema
+  do_execsql_test gencol1-2.$tn.100 {
+    INSERT INTO t1(a,b,c) VALUES(1,'abcdef',5.5),(3,'cantaloupe',NULL);
+    SELECT w, x, y, '|' FROM t1 ORDER BY a;
+  } {10 real abc | 30 null ntalo |}
+  do_execsql_test gencol1-2.$tn.101 {
+    SELECT w, x, y, '|' FROM t1 ORDER BY w;
+  } {10 real abc | 30 null ntalo |}
+  do_execsql_test gencol1-2.$tn.102 {
+    SELECT a FROM t1 WHERE w=30;
+  } {3}
+  do_execsql_test gencol1-2.$tn.103 {
+    SELECT a FROM t1 WHERE x='real';
+  } {1}
+  do_execsql_test gencol1-2.$tn.104 {
+    SELECT a FROM t1 WHERE y LIKE '%tal%' OR x='real' ORDER BY b;
+  } {1 3}
+  do_execsql_test gencol1-2.$tn.110 {
+    CREATE INDEX t1w ON t1(w);
+    SELECT a FROM t1 WHERE w=10;
+  } {1}
+  do_execsql_test gencol1-2.$tn.120 {
+    CREATE INDEX t1x ON t1(x) WHERE w BETWEEN 20 AND 40;
+    SELECT a FROM t1 WHERE x='null' AND w BETWEEN 20 AND 40;
+  } {3}
+  do_execsql_test gencol1-2.$tn.121 {
+    SELECT a FROM t1 WHERE x='real';
+  } {1}
+  do_execsql_test gencol1-2.$tn.130 {
+    VACUUM;
+    PRAGMA integrity_check;
+  } {ok}
+  do_execsql_test gencol1-2.$tn.140 {
+    UPDATE t1 SET a=a+100 WHERE w<20;
+    SELECT a, w, '|' FROM t1 ORDER BY w;
+  } {3 30 | 101 1010 |}
+  do_execsql_test gencol1-2.$tn.150 {
+    INSERT INTO t1 VALUES(4,'jambalaya','Chef John'),(15,87719874135,0);
+    SELECT w, x, y, '|' FROM t1 ORDER BY w;
+  } {30 null ntalo | 40 text balaya | 150 integer {} | 1010 real {} |}
+}
+
+# 2019-10-31 ticket b9befa4b83a660cc
+db close
+sqlite3 db :memory:
+do_execsql_test gencol1-3.100 {
+  PRAGMA foreign_keys = true;
+  CREATE TABLE t0(c0 PRIMARY KEY, c1, c2 AS (c0+c1-c3) REFERENCES t0, c3);
+  INSERT INTO t0 VALUES (0, 0, 0), (11, 5, 5);
+  UPDATE t0 SET c1 = c0, c3 = c0;
+  SELECT *, '|' FROM t0 ORDER BY +c0;
+} {0 0 0 0 | 11 11 11 11 |}
+do_catchsql_test gencol1-3.110 {
+  UPDATE t0 SET c1 = c0, c3 = c0+1;
+} {1 {FOREIGN KEY constraint failed}}
+
+# 2019-11-01 ticket c28a01da72f8957c
+db close
+sqlite3 db :memory:
+do_execsql_test gencol1-4.100 {
+  CREATE TABLE t0 (
+    c0,
+    c1 a UNIQUE AS (1),
+    c2,
+    c3 REFERENCES t0(c1)
+  );
+  PRAGMA foreign_keys = true;
+  INSERT INTO t0(c0,c2,c3) VALUES(0,0,1);
+} {}
+do_catchsql_test gencol1-4.110 {
+  REPLACE INTO t0(c0,c2,c3) VALUES(0,0,0),(0,0,0);
+} {1 {FOREIGN KEY constraint failed}}
+
+# 2019-11-01 Problem found while adding new foreign key test cases in TH3.
+db close
+sqlite3 db :memory:
+do_execsql_test gencol1-5.100 {
+  PRAGMA foreign_keys=ON;
+  CREATE TABLE t1(
+    gcb AS (b*1),
+    a INTEGER PRIMARY KEY,
+    gcc AS (c+0),
+    b UNIQUE,
+    gca AS (1*a+0),
+    c UNIQUE
+  ) WITHOUT ROWID;
+  INSERT INTO t1 VALUES(1,2,3);
+  INSERT INTO t1 VALUES(4,5,6);
+  INSERT INTO t1 VALUES(7,8,9);
+  CREATE TABLE t1a(
+    gcx AS (x+0) REFERENCES t1(a) ON DELETE CASCADE,
+    id,
+    x,
+    gcid AS (1*id)
+  );
+  INSERT INTO t1a VALUES(1, 1);
+  INSERT INTO t1a VALUES(2, 4);
+  INSERT INTO t1a VALUES(3, 7);
+  DELETE FROM t1 WHERE b=5;
+  SELECT id,x,'|' FROM t1a ORDER BY id;
+} {1 1 | 3 7 |}  
+
+do_catchsql_test gencol1-6.10 {
+  DROP TABLE IF EXISTS t0;
+  CREATE TABLE t0(c0 NOT NULL AS(c1), c1);
+  REPLACE INTO t0(c1) VALUES(NULL);
+} {1 {NOT NULL constraint failed: t0.c0}}
+
+# 2019-11-06 ticket https://www.sqlite.org/src/info/2399f5986134f79c
+# 2019-12-27 ticket https://www.sqlite.org/src/info/5fbc159eeb092130
+# 2019-12-27 ticket https://www.sqlite.org/src/info/37823501c68a09f9
+#
+# All of the above tickets deal with NOT NULL ON CONFLICT REPLACE
+# constraints on tables that have generated columns.
+#
+reset_db
+do_execsql_test gencol1-7.10 {
+  CREATE TABLE t0 (c0 GENERATED ALWAYS AS (1), c1 UNIQUE, c2 UNIQUE);
+  INSERT INTO t0(c1) VALUES (1);
+  SELECT quote(0 = t0.c2 OR t0.c1 BETWEEN t0.c2 AND 1) FROM t0;
+} {NULL}
+do_execsql_test gencol1-7.11 {
+  DROP TABLE t0;
+  CREATE TABLE t0(c0 NOT NULL DEFAULT 'xyz', c1 AS(c0) NOT NULL);
+  REPLACE INTO t0(c0) VALUES(NULL);
+  SELECT * FROM t0;
+} {xyz xyz}
+do_execsql_test gencol1-7.12 {
+  DROP TABLE t0;
+  CREATE TABLE t0(c0 NOT NULL DEFAULT 'xyz', c1 AS(c0) STORED NOT NULL);
+  REPLACE INTO t0(c0) VALUES(NULL);
+  SELECT * FROM t0;
+} {xyz xyz}
+do_execsql_test gencol1-7.20 {
+  CREATE TABLE t1(
+   a NOT NULL DEFAULT 'aaa',
+   b AS(c) NOT NULL,
+   c NOT NULL DEFAULT 'ccc');
+  REPLACE INTO t1(a,c) VALUES(NULL,NULL);
+  SELECT * FROM t1;
+} {aaa ccc ccc}
+do_execsql_test gencol1-7.21 {
+  DROP TABLE t1;
+  CREATE TABLE t1(
+   a NOT NULL DEFAULT 'aaa',
+   b AS(c) STORED NOT NULL,
+   c NOT NULL DEFAULT 'ccc');
+  REPLACE INTO t1(a,c) VALUES(NULL,NULL);
+  SELECT * FROM t1;
+} {aaa ccc ccc}
+do_execsql_test gencol1-7.30 {
+  CREATE TABLE t2(
+   a NOT NULL DEFAULT 'aaa',
+   b AS(a) NOT NULL,
+   c NOT NULL DEFAULT 'ccc');
+  REPLACE INTO t2(a,c) VALUES(NULL,NULL);
+  SELECT * FROM t2;
+} {aaa aaa ccc}
+do_execsql_test gencol1-7.31 {
+  DROP TABLE t2;
+  CREATE TABLE t2(
+   a NOT NULL DEFAULT 'aaa',
+   b AS(a) STORED NOT NULL,
+   c NOT NULL DEFAULT 'ccc');
+  REPLACE INTO t2(a,c) VALUES(NULL,NULL);
+  SELECT * FROM t2;
+} {aaa aaa ccc}
+do_execsql_test gencol1-7.40 {
+  CREATE TABLE t3(a NOT NULL DEFAULT 123, b AS(a) UNIQUE);
+  REPLACE INTO t3 VALUES(NULL);
+  SELECT * FROM t3;
+} {123 123}
+do_execsql_test gencol1-7.41 {
+  SELECT * FROM t3 WHERE b=123;
+} {123 123}
+do_execsql_test gencol1-7.50 {
+  CREATE TABLE t4(a NOT NULL DEFAULT 123, b AS(a*10+4) STORED UNIQUE);
+  REPLACE INTO t4 VALUES(NULL);
+  SELECT * FROM t4;
+} {123 1234}
+do_execsql_test gencol1-7.51 {
+  SELECT * FROM t4 WHERE b=1234;
+} {123 1234}
+
+# 2019-11-06 ticket 4fc08501f4e56692
+do_execsql_test gencol1-8.10 {
+  DROP TABLE IF EXISTS t0;
+  CREATE TABLE t0(
+    c0 AS (('a', 9) < ('b', c1)),
+    c1 AS (1),
+    c2 CHECK (1 = c1)
+  );
+  INSERT INTO t0 VALUES (0),(99);
+  SELECT * FROM t0;
+} {1 1 0 1 1 99}
+do_catchsql_test gencol1-8.20 {
+  DROP TABLE IF EXISTS t0;
+  CREATE TABLE t0(
+    c0,
+    c1 AS(c0 + c2),
+    c2 AS(c1) CHECK(c2)
+  );
+  UPDATE t0 SET c0 = NULL;
+} {1 {generated column loop on "c2"}}
+
+# 2019-11-21 Problems in the new generated column logic
+# reported by Yongheng Chen and Rui Zhong
+reset_db
+do_execsql_test gencol1-9.10 {
+  PRAGMA foreign_keys=OFF;
+  CREATE TABLE t1(aa , bb AS (17) UNIQUE);
+  INSERT INTO t1 VALUES(17);
+  CREATE TABLE t2(cc);
+  INSERT INTO t2 VALUES(41);
+  SELECT * FROM t2 JOIN t1 WHERE t1.bb=t1.aa AND t1.bb=17;
+} {41 17 17}
+do_execsql_test gencol1-9.20 {
+  CREATE TABLE t3(aa INT PRIMARY KEY, bb UNIQUE AS(aa));
+  INSERT INTO t3 VALUES(1);
+  SELECT 100, * FROM t3;
+  DELETE FROM t3 WHERE (SELECT bb FROM t3);
+  SELECT 200, * FROM t3;
+} {100 1 1}
+
+# 2019-12-04 Generated column in a CREATE TABLE IF NOT EXISTS that
+# does already exist.
+#
+sqlite3 db :memory:
+do_execsql_test gencol1-10.10 {
+  CREATE TABLE t1(aa,bb);
+  CREATE TABLE IF NOT EXISTS t1(aa, bb AS (aa+1));
+  PRAGMA integrity_check;
+} {ok}
+
+# 2019-12-06 Found by mrigger
+#
+sqlite3 db :memory:
+do_execsql_test gencol1-11.10 {
+  PRAGMA foreign_keys = true;
+  CREATE TABLE t0(
+    c0,
+    c1 INTEGER PRIMARY KEY,
+    c2 BLOB UNIQUE DEFAULT x'00',
+    c3 BLOB GENERATED ALWAYS AS (1), 
+    FOREIGN KEY(c1) REFERENCES t0(c2)
+  );
+}
+do_catchsql_test gencol1-11.20 {
+  INSERT OR REPLACE INTO t0(c0, c1) VALUES (2, 1), (1, 0)
+} {1 {FOREIGN KEY constraint failed}}
+do_execsql_test gencol1-11.30 {
+  DROP TABLE t0;
+  CREATE TABLE t0(
+    c0,
+    c1 INTEGER PRIMARY KEY,
+    c3 BLOB GENERATED ALWAYS AS (1), 
+    c2 BLOB UNIQUE DEFAULT x'00',
+    FOREIGN KEY(c1) REFERENCES t0(c2)
+  );
+}
+do_catchsql_test gencol1-11.40 {
+  INSERT OR REPLACE INTO t0(c0, c1) VALUES (2, 1), (1, 0)
+} {1 {FOREIGN KEY constraint failed}}
+do_execsql_test gencol1-11.50 {
+  DROP TABLE t0;
+  CREATE TABLE t0(
+    c0,
+    c3 BLOB GENERATED ALWAYS AS (1), 
+    c1 INTEGER PRIMARY KEY,
+    c2 BLOB UNIQUE DEFAULT x'00',
+    FOREIGN KEY(c1) REFERENCES t0(c2)
+  );
+}
+do_catchsql_test gencol1-11.60 {
+  INSERT OR REPLACE INTO t0(c0, c1) VALUES (2, 1), (1, 0)
+} {1 {FOREIGN KEY constraint failed}}
+do_execsql_test gencol1-11.70 {
+  DROP TABLE t0;
+  CREATE TABLE t0(
+    c3 BLOB GENERATED ALWAYS AS (1), 
+    c0,
+    c1 INTEGER PRIMARY KEY,
+    c2 BLOB UNIQUE DEFAULT x'00',
+    FOREIGN KEY(c1) REFERENCES t0(c2)
+  );
+}
+do_catchsql_test gencol1-11.80 {
+  INSERT OR REPLACE INTO t0(c0, c1) VALUES (2, 1), (1, 0)
+} {1 {FOREIGN KEY constraint failed}}
+
+# 2019-12-09 ticket bd8c280671ba44a7
+# With generated columns, the sqlite3ExprGetColumnOfTable() routine might
+# generate a code sequence that does not end with OP_Column.  So check to
+# make sure that the last instruction generated is an OP_column prior to
+# applying the OPFLAG_TYPEOFARG optimization to NOT NULL checks in the
+# PRAGMA integrity_check code.
+#
+sqlite3 db :memory:
+do_execsql_test gencol1-12.10 {
+  CREATE TABLE t0 (c0, c1 NOT NULL AS (c0==0));
+  INSERT INTO t0(c0) VALUES (0);
+  PRAGMA integrity_check;
+} {ok}
+
+# 2019-12-09 bug report from Yongheng Chen
+# Ensure that the SrcList_item.colUsed field is set correctly when a
+# generated column appears in the USING clause of a join.
+#
+do_execsql_test gencol1-13.10 {
+  CREATE TABLE t1(x, y AS(x+1));
+  INSERT INTO t1 VALUES(10);
+  SELECT y FROM t1 JOIN t1 USING (y,y);
+} {11}
+do_execsql_test gencol1-13.11 {
+  SELECT 123 FROM t1 JOIN t1 USING (x);
+} {123}
+do_execsql_test gencol1-13.11 {
+  SELECT 456 FROM t1 JOIN t1 USING (x,x);
+} {456}
+do_execsql_test gencol1-13.20 {
+  CREATE INDEX t1y ON t1(y);
+  SELECT y FROM t1 JOIN t1 USING (y,y);
+} {11}
+do_execsql_test gencol1-13.21 {
+  CREATE INDEX t1x ON t1(x);
+  SELECT 123 FROM t1 JOIN t1 USING (x);
+} {123}
+do_execsql_test gencol1-13.22 {
+  SELECT 456 FROM t1 JOIN t1 USING (x,x);
+} {456}
+
+# 2019-12-14 ticket b439bfcfb7deedc6
+#
+sqlite3 db :memory:
+do_execsql_test gencol1-14.10 {
+  CREATE TABLE t0(c0 AS(1 >= 1), c1 UNIQUE AS(TYPEOF(c0)), c2);
+  INSERT INTO t0 VALUES(0);
+  REINDEX;
+  SELECT * FROM t0;
+} {1 integer 0}
+do_catchsql_test gencol1-14.10 {
+  INSERT INTO t0 VALUES(2);
+} {1 {UNIQUE constraint failed: t0.c1}}
+
+# 2019-12-14 gramfuzz1 find
+# The schema is malformed in that it has a subquery on a generated
+# column expression.  This will be loaded if writable_schema=ON.  SQLite
+# must not use such an expression during code generation as the code generator
+# will add bits of content to the expression tree that might be allocated
+# from lookaside.  But the schema is not tied to a particular database
+# connection, so the use of lookaside memory is prohibited.  The fix
+# is to change the generated column expression to NULL before adding it
+# to the schema.
+#
+reset_db
+do_test gencol1-15.10 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+| size 8192 pagesize 4096 filename c27.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 01 00 00 00 02   .....@  ........
+|     32: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00   ................
+|     80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01   ................
+|     96: 00 2e 3f d8 0d 00 00 00 01 0f ba 00 0f ba 00 00   ..?.............
+|   4016: 00 00 00 00 00 00 00 00 00 00 44 01 06 17 11 11   ..........D.....
+|   4032: 01 75 74 61 62 6c 65 74 31 74 31 02 43 52 45 41   .utablet1t1.CREA
+|   4048: 54 45 20 54 41 42 4c 45 20 74 31 28 61 20 49 4e   TE TABLE t1(a IN
+|   4064: 54 2c 20 62 20 41 53 28 28 56 41 4c 55 45 53 28   T, b AS((VALUES(
+|   4080: 31 29 29 20 49 53 20 75 6e 6b 6e 6f 77 6e 29 29   1)) IS unknown))
+| page 2 offset 4096
+|      0: 0d 00 00 00 00 10 00 00 00 00 00 00 00 00 00 00   ................
+| end c27.db
+}]} {}
+do_execsql_test gencol1-15.20 {
+  PRAGMA writable_schema=ON;
+  REPLACE INTO t1 VALUES(9);
+  SELECT a, quote(b) FROM t1
+} {9 NULL}
+
+# 2019-12-16 ticket 3b84b42943644d6f
+# When a table is the right table of a LEFT JOIN and the ON clause is
+# false, make sure any generated columns evaluate to NULL.
+reset_db
+do_execsql_test gencol1-16.10 {
+  CREATE TABLE t0(c0);
+  CREATE TABLE t1(c1, c2 AS(1));
+  INSERT INTO t0 VALUES(0);
+  SELECT c0, c1, c2 FROM t0 LEFT JOIN t1;
+} {0 {} {}}
+do_execsql_test gencol1-16.20 {
+  DROP TABLE t1;
+  CREATE TABLE t1(c1, c2 AS (c1 ISNULL));
+  SELECT c0, c1, c2 FROM t0 LEFT JOIN t1;
+} {0 {} {}}
+do_execsql_test gencol1-16.30 {
+  INSERT INTO t1(c1) VALUES(1),(NULL);
+  SELECT * FROM t1;
+} {1 0 {} 1}
+do_execsql_test gencol1-16.40 {
+  SELECT c0, c1, c2 FROM t0 LEFT JOIN t1 ON c0=c1;
+} {0 {} {}}
+
+# 2019-12-20 ticket e0a8120553f4b082
+# Generated columns with REAL affinity need to have an OP_RealAffinity
+# opcode applied, even when the column value is extracted from an index.
+#
+reset_db
+do_execsql_test gencol1-17.10 {
+  CREATE TABLE t0(c0 REAL AS(1) UNIQUE, c1 INT);
+  INSERT INTO t0 VALUES('');
+  SELECT quote(c0), quote(c1) from t0;
+} {1.0 ''}
+do_execsql_test gencol1-17.20 {
+  SELECT *, (1 BETWEEN CAST(t0.c0 AS TEXT) AND t0.c0) FROM t0;
+} {1.0 {} 0}
+do_execsql_test gencol1-17.30 {
+  SELECT * FROM t0 WHERE (1 BETWEEN CAST(t0.c0 AS TEXT) AND t0.c0);
+} {}
+do_execsql_test gencol1-17.40 {
+  CREATE TABLE t1(a TEXT AS(b) COLLATE nocase, b TEXT, c INT, d DEFAULT 1);
+  INSERT INTO t1(b,c) VALUES('abc',11),('DEF',22),('ghi',33);
+  SELECT a FROM t1 WHERE b='DEF' AND a='def';
+} {DEF}
+do_execsql_test gencol1-17.50 {
+  CREATE INDEX t1bca ON t1(b,c,a);
+  SELECT a FROM t1 WHERE b='DEF' AND a='def';
+} {DEF}
+
+# 2019-12-26 ticket ec8abb025e78f40c
+# An index on a virtual column with a constant value (why would anybody
+# ever do such a thing?) can cause problems for a one-pass DELETE.
+#
+reset_db
+do_execsql_test gencol1-18.10 {
+  CREATE TABLE t0(c0 UNIQUE AS(0), c1, c2);
+  INSERT INTO t0(c1) VALUES(0);
+  SELECT * FROM t0;
+} {0 0 {}}
+do_execsql_test gencol1-18.20 {
+  UPDATE t0 SET c1=0, c2=0 WHERE c0>=0;
+  SELECT * FROM t0;
+} {0 0 0}
+
+# 2019-12-27 ticket de4b04149b9fdeae
+#
+reset_db
+do_catchsql_test gencol1-19.10 {
+  CREATE TABLE t0(
+    c0 INT AS(2) UNIQUE,
+    c1 TEXT UNIQUE,
+    FOREIGN KEY(c0) REFERENCES t0(c1)
+  );
+  INSERT INTO t0(c1) VALUES(0.16334143182538696), (0);
+} {1 {UNIQUE constraint failed: t0.c0}}
+
+# 2020-06-29 forum bug report.
+# https://sqlite.org/forum/forumpost/73b9a8ccfb
+#
+do_execsql_test gencol1-20.1 {
+  CREATE TEMPORARY TABLE tab (
+    prim DATE PRIMARY KEY,
+    a INTEGER,
+    comp INTEGER AS (a),
+    b INTEGER,
+    x INTEGER
+  );
+  -- Add some data
+  INSERT INTO tab (prim, a, b) VALUES ('2001-01-01', 0, 0);
+  -- Check that each column is 0 like I expect
+  SELECT * FROM tab;
+} {2001-01-01 0 0 0 {}}
+do_execsql_test gencol1-20.2 {
+  -- Do an UPSERT on the b column
+  INSERT INTO tab (prim, b)
+  VALUES ('2001-01-01',5)
+      ON CONFLICT(prim) DO UPDATE SET  b=excluded.b;
+  -- Now b is NULL rather than 5
+  SELECT * FROM tab;
+} {2001-01-01 0 0 5 {}}
+
+# 2021-07-30 forum https://sqlite.org/forum/forumpost/ff3ffe09251c105b?t=h
+#
+ifcapable vtab {
+reset_db
+  do_execsql_test gencol1-21.1 {
+    CREATE TABLE t1(
+      a integer primary key,
+      b int generated always as (a+5),
+      c text    GENERATED   ALWAYS as (printf('%08x',a)),
+      d Generated
+        Always
+        AS ('xyzzy'),
+      e int                         Always default(5)
+    );
+    INSERT INTO t1(a) VALUES(5);
+    SELECT name, type FROM pragma_table_xinfo('t1');
+  } {a INTEGER b INT c TEXT d {} e INT}
+}
+
+# 2021-09-07 forum https://sqlite.org/forum/forumpost/699b44b3ee
+#
+reset_db
+do_execsql_test gencol1-22.1 {
+  CREATE TABLE t0(a PRIMARY KEY,b TEXT AS ('2') UNIQUE);
+  INSERT INTO t0(a) VALUES(2);
+  SELECT * FROM t0 AS x JOIN t0 AS y
+   WHERE x.b='2'
+     AND (y.a=2 OR (x.b LIKE '2*' AND y.a=x.b));
+} {2 2 2 2}
+
+
+# 2023-03-02 dbsqlfuzz 65f5eb57f8859344d5f1f33e08c77ee12960ed83
+#
+set typelist {ANY INT REAL BLOB TEXT {}}
+set cnt 0
+foreach t1 $typelist {
+  foreach t2 $typelist {
+    incr cnt
+    db eval "
+      DROP TABLE IF EXISTS t1;
+      CREATE TABLE t1(
+        x $t1,
+        a $t2 AS (x) VIRTUAL,
+        b BLOB AS (x) VIRTUAL
+      );
+      CREATE INDEX x2 ON t1(a);
+      INSERT INTO t1(x) VALUES(NULL),('1'),(2),(3.5),('xyz');
+    "
+    set x1 [lsort [db eval {SELECT typeof(b) FROM t1}]]
+    do_test gencol1-23.1.$cnt {
+      lsort [db eval {SELECT typeof(b) FROM t1 INDEXED BY x2}]
+    } $x1
+  }
+}
+do_execsql_test gencol1-23.2 {
+  DROP TABLE t1;
+  CREATE TABLE t1(
+    x,
+    a INT AS (x) VIRTUAL,
+    b BLOB AS (x) VIRTUAL
+  );
+  CREATE INDEX x2 ON t1(a);
+  INSERT INTO t1(x) VALUES(NULL),('1'),('xyz'),(2),(3.5);
+  SELECT quote(a) FROM t1 INDEXED BY x2;
+} {NULL 1 2 3.5 'xyz'}
+do_execsql_test gencol1-23.3 {
+  EXPLAIN SELECT a FROM t1 INDEXED BY x2;
+} {~/Column 0/}
+#    ^^^^^^^^---- verfies that x2 acts like a covering index
+do_execsql_test gencol1-23.4 {
+  EXPLAIN SELECT b FROM t1 INDEXED BY x2;
+} {/Column 0/}
+#  ^^^^^^^^^^--- Must reference the original table in this case because
+# of the different datatype on column b.
+
+# 2023-03-07 https://sqlite.org/forum/forumpost/b312e075b5
+#
+do_catchsql_test gencol1-23.5 {
+  CREATE TABLE v0(c1 INT, c2 AS (RAISE(IGNORE)));
+} {1 {RAISE() may only be used within a trigger-program}}
+
+finish_test
diff --git a/test/genesis.tcl b/test/genesis.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..4ba4c8ea214feb4ce42a3fa0a0bbf717f89cfe31
--- /dev/null
+++ b/test/genesis.tcl
@@ -0,0 +1,1560 @@
+# 2010 February 02
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements a TCL function that fills an FTS table with
+# lots of content useful for testing.  This routine is broken out into
+# a separate file to facilitate its use by multiple test scripts.
+#
+
+# The fts_kjv_genesis routine is already loaded.  This script is a no-op.
+if {[lsearch [info procs] fts_kjv_genesis]>=0} return
+
+# This procedure fills an existing FTS3/FTS4 table with many entries.
+# The table needs to have a single column (other than docid) named "words".
+#
+proc fts_kjv_genesis {} {
+db eval {
+BEGIN TRANSACTION;
+INSERT INTO t1(docid,words) VALUES(1001001,'In the beginning God created the heaven and the earth.');
+INSERT INTO t1(docid,words) VALUES(1001002,'And the earth was without form, and void; and darkness was upon the face of the deep. And the Spirit of God moved upon the face of the waters.');
+INSERT INTO t1(docid,words) VALUES(1001003,'And God said, Let there be light: and there was light.');
+INSERT INTO t1(docid,words) VALUES(1001004,'And God saw the light, that it was good: and God divided the light from the darkness.');
+INSERT INTO t1(docid,words) VALUES(1001005,'And God called the light Day, and the darkness he called Night. And the evening and the morning were the first day.');
+INSERT INTO t1(docid,words) VALUES(1001006,'And God said, Let there be a firmament in the midst of the waters, and let it divide the waters from the waters.');
+INSERT INTO t1(docid,words) VALUES(1001007,'And God made the firmament, and divided the waters which were under the firmament from the waters which were above the firmament: and it was so.');
+INSERT INTO t1(docid,words) VALUES(1001008,'And God called the firmament Heaven. And the evening and the morning were the second day.');
+INSERT INTO t1(docid,words) VALUES(1001009,'And God said, Let the waters under the heaven be gathered together unto one place, and let the dry land appear: and it was so.');
+INSERT INTO t1(docid,words) VALUES(1001010,'And God called the dry land Earth; and the gathering together of the waters called he Seas: and God saw that it was good.');
+INSERT INTO t1(docid,words) VALUES(1001011,'And God said, Let the earth bring forth grass, the herb yielding seed, and the fruit tree yielding fruit after his kind, whose seed is in itself, upon the earth: and it was so.');
+INSERT INTO t1(docid,words) VALUES(1001012,'And the earth brought forth grass, and herb yielding seed after his kind, and the tree yielding fruit, whose seed was in itself, after his kind: and God saw that it was good.');
+INSERT INTO t1(docid,words) VALUES(1001013,'And the evening and the morning were the third day.');
+INSERT INTO t1(docid,words) VALUES(1001014,'And God said, Let there be lights in the firmament of the heaven to divide the day from the night; and let them be for signs, and for seasons, and for days, and years:');
+INSERT INTO t1(docid,words) VALUES(1001015,'And let them be for lights in the firmament of the heaven to give light upon the earth: and it was so.');
+INSERT INTO t1(docid,words) VALUES(1001016,'And God made two great lights; the greater light to rule the day, and the lesser light to rule the night: he made the stars also.');
+INSERT INTO t1(docid,words) VALUES(1001017,'And God set them in the firmament of the heaven to give light upon the earth,');
+INSERT INTO t1(docid,words) VALUES(1001018,'And to rule over the day and over the night, and to divide the light from the darkness: and God saw that it was good.');
+INSERT INTO t1(docid,words) VALUES(1001019,'And the evening and the morning were the fourth day.');
+INSERT INTO t1(docid,words) VALUES(1001020,'And God said, Let the waters bring forth abundantly the moving creature that hath life, and fowl that may fly above the earth in the open firmament of heaven.');
+INSERT INTO t1(docid,words) VALUES(1001021,'And God created great whales, and every living creature that moveth, which the waters brought forth abundantly, after their kind, and every winged fowl after his kind: and God saw that it was good.');
+INSERT INTO t1(docid,words) VALUES(1001022,'And God blessed them, saying, Be fruitful, and multiply, and fill the waters in the seas, and let fowl multiply in the earth.');
+INSERT INTO t1(docid,words) VALUES(1001023,'And the evening and the morning were the fifth day.');
+INSERT INTO t1(docid,words) VALUES(1001024,'And God said, Let the earth bring forth the living creature after his kind, cattle, and creeping thing, and beast of the earth after his kind: and it was so.');
+INSERT INTO t1(docid,words) VALUES(1001025,'And God made the beast of the earth after his kind, and cattle after their kind, and every thing that creepeth upon the earth after his kind: and God saw that it was good.');
+INSERT INTO t1(docid,words) VALUES(1001026,'And God said, Let us make man in our image, after our likeness: and let them have dominion over the fish of the sea, and over the fowl of the air, and over the cattle, and over all the earth, and over every creeping thing that creepeth upon the earth.');
+INSERT INTO t1(docid,words) VALUES(1001027,'So God created man in his own image, in the image of God created he him; male and female created he them.');
+INSERT INTO t1(docid,words) VALUES(1001028,'And God blessed them, and God said unto them, Be fruitful, and multiply, and replenish the earth, and subdue it: and have dominion over the fish of the sea, and over the fowl of the air, and over every living thing that moveth upon the earth.');
+INSERT INTO t1(docid,words) VALUES(1001029,'And God said, Behold, I have given you every herb bearing seed, which is upon the face of all the earth, and every tree, in the which is the fruit of a tree yielding seed; to you it shall be for meat.');
+INSERT INTO t1(docid,words) VALUES(1001030,'And to every beast of the earth, and to every fowl of the air, and to every thing that creepeth upon the earth, wherein there is life, I have given every green herb for meat: and it was so.');
+INSERT INTO t1(docid,words) VALUES(1001031,'And God saw every thing that he had made, and, behold, it was very good. And the evening and the morning were the sixth day.');
+INSERT INTO t1(docid,words) VALUES(1002001,'Thus the heavens and the earth were finished, and all the host of them.');
+INSERT INTO t1(docid,words) VALUES(1002002,'And on the seventh day God ended his work which he had made; and he rested on the seventh day from all his work which he had made.');
+INSERT INTO t1(docid,words) VALUES(1002003,'And God blessed the seventh day, and sanctified it: because that in it he had rested from all his work which God created and made.');
+INSERT INTO t1(docid,words) VALUES(1002004,'These are the generations of the heavens and of the earth when they were created, in the day that the LORD God made the earth and the heavens,');
+INSERT INTO t1(docid,words) VALUES(1002005,'And every plant of the field before it was in the earth, and every herb of the field before it grew: for the LORD God had not caused it to rain upon the earth, and there was not a man to till the ground.');
+INSERT INTO t1(docid,words) VALUES(1002006,'But there went up a mist from the earth, and watered the whole face of the ground.');
+INSERT INTO t1(docid,words) VALUES(1002007,'And the LORD God formed man of the dust of the ground, and breathed into his nostrils the breath of life; and man became a living soul.');
+INSERT INTO t1(docid,words) VALUES(1002008,'And the LORD God planted a garden eastward in Eden; and there he put the man whom he had formed.');
+INSERT INTO t1(docid,words) VALUES(1002009,'And out of the ground made the LORD God to grow every tree that is pleasant to the sight, and good for food; the tree of life also in the midst of the garden, and the tree of knowledge of good and evil.');
+INSERT INTO t1(docid,words) VALUES(1002010,'And a river went out of Eden to water the garden; and from thence it was parted, and became into four heads.');
+INSERT INTO t1(docid,words) VALUES(1002011,'The name of the first is Pison: that is it which compasseth the whole land of Havilah, where there is gold;');
+INSERT INTO t1(docid,words) VALUES(1002012,'And the gold of that land is good: there is bdellium and the onyx stone.');
+INSERT INTO t1(docid,words) VALUES(1002013,'And the name of the second river is Gihon: the same is it that compasseth the whole land of Ethiopia.');
+INSERT INTO t1(docid,words) VALUES(1002014,'And the name of the third river is Hiddekel: that is it which goeth toward the east of Assyria. And the fourth river is Euphrates.');
+INSERT INTO t1(docid,words) VALUES(1002015,'And the LORD God took the man, and put him into the garden of Eden to dress it and to keep it.');
+INSERT INTO t1(docid,words) VALUES(1002016,'And the LORD God commanded the man, saying, Of every tree of the garden thou mayest freely eat:');
+INSERT INTO t1(docid,words) VALUES(1002017,'But of the tree of the knowledge of good and evil, thou shalt not eat of it: for in the day that thou eatest thereof thou shalt surely die.');
+INSERT INTO t1(docid,words) VALUES(1002018,'And the LORD God said, It is not good that the man should be alone; I will make him an help meet for him.');
+INSERT INTO t1(docid,words) VALUES(1002019,'And out of the ground the LORD God formed every beast of the field, and every fowl of the air; and brought them unto Adam to see what he would call them: and whatsoever Adam called every living creature, that was the name thereof.');
+INSERT INTO t1(docid,words) VALUES(1002020,'And Adam gave names to all cattle, and to the fowl of the air, and to every beast of the field; but for Adam there was not found an help meet for him.');
+INSERT INTO t1(docid,words) VALUES(1002021,'And the LORD God caused a deep sleep to fall upon Adam, and he slept: and he took one of his ribs, and closed up the flesh instead thereof;');
+INSERT INTO t1(docid,words) VALUES(1002022,'And the rib, which the LORD God had taken from man, made he a woman, and brought her unto the man.');
+INSERT INTO t1(docid,words) VALUES(1002023,'And Adam said, This is now bone of my bones, and flesh of my flesh: she shall be called Woman, because she was taken out of Man.');
+INSERT INTO t1(docid,words) VALUES(1002024,'Therefore shall a man leave his father and his mother, and shall cleave unto his wife: and they shall be one flesh.');
+INSERT INTO t1(docid,words) VALUES(1002025,'And they were both naked, the man and his wife, and were not ashamed.');
+INSERT INTO t1(docid,words) VALUES(1003001,'Now the serpent was more subtil than any beast of the field which the LORD God had made. And he said unto the woman, Yea, hath God said, Ye shall not eat of every tree of the garden?');
+INSERT INTO t1(docid,words) VALUES(1003002,'And the woman said unto the serpent, We may eat of the fruit of the trees of the garden:');
+INSERT INTO t1(docid,words) VALUES(1003003,'But of the fruit of the tree which is in the midst of the garden, God hath said, Ye shall not eat of it, neither shall ye touch it, lest ye die.');
+INSERT INTO t1(docid,words) VALUES(1003004,'And the serpent said unto the woman, Ye shall not surely die:');
+INSERT INTO t1(docid,words) VALUES(1003005,'For God doth know that in the day ye eat thereof, then your eyes shall be opened, and ye shall be as gods, knowing good and evil.');
+INSERT INTO t1(docid,words) VALUES(1003006,'And when the woman saw that the tree was good for food, and that it was pleasant to the eyes, and a tree to be desired to make one wise, she took of the fruit thereof, and did eat, and gave also unto her husband with her; and he did eat.');
+INSERT INTO t1(docid,words) VALUES(1003007,'And the eyes of them both were opened, and they knew that they were naked; and they sewed fig leaves together, and made themselves aprons.');
+INSERT INTO t1(docid,words) VALUES(1003008,'And they heard the voice of the LORD God walking in the garden in the cool of the day: and Adam and his wife hid themselves from the presence of the LORD God amongst the trees of the garden.');
+INSERT INTO t1(docid,words) VALUES(1003009,'And the LORD God called unto Adam, and said unto him, Where art thou?');
+INSERT INTO t1(docid,words) VALUES(1003010,'And he said, I heard thy voice in the garden, and I was afraid, because I was naked; and I hid myself.');
+INSERT INTO t1(docid,words) VALUES(1003011,'And he said, Who told thee that thou wast naked? Hast thou eaten of the tree, whereof I commanded thee that thou shouldest not eat?');
+INSERT INTO t1(docid,words) VALUES(1003012,'And the man said, The woman whom thou gavest to be with me, she gave me of the tree, and I did eat.');
+INSERT INTO t1(docid,words) VALUES(1003013,'And the LORD God said unto the woman, What is this that thou hast done? And the woman said, The serpent beguiled me, and I did eat.');
+INSERT INTO t1(docid,words) VALUES(1003014,'And the LORD God said unto the serpent, Because thou hast done this, thou art cursed above all cattle, and above every beast of the field; upon thy belly shalt thou go, and dust shalt thou eat all the days of thy life:');
+INSERT INTO t1(docid,words) VALUES(1003015,'And I will put enmity between thee and the woman, and between thy seed and her seed; it shall bruise thy head, and thou shalt bruise his heel.');
+INSERT INTO t1(docid,words) VALUES(1003016,'Unto the woman he said, I will greatly multiply thy sorrow and thy conception; in sorrow thou shalt bring forth children; and thy desire shall be to thy husband, and he shall rule over thee.');
+INSERT INTO t1(docid,words) VALUES(1003017,'And unto Adam he said, Because thou hast hearkened unto the voice of thy wife, and hast eaten of the tree, of which I commanded thee, saying, Thou shalt not eat of it: cursed is the ground for thy sake; in sorrow shalt thou eat of it all the days of thy life;');
+INSERT INTO t1(docid,words) VALUES(1003018,'Thorns also and thistles shall it bring forth to thee; and thou shalt eat the herb of the field;');
+INSERT INTO t1(docid,words) VALUES(1003019,'In the sweat of thy face shalt thou eat bread, till thou return unto the ground; for out of it wast thou taken: for dust thou art, and unto dust shalt thou return.');
+INSERT INTO t1(docid,words) VALUES(1003020,'And Adam called his wife''s name Eve; because she was the mother of all living.');
+INSERT INTO t1(docid,words) VALUES(1003021,'Unto Adam also and to his wife did the LORD God make coats of skins, and clothed them.');
+INSERT INTO t1(docid,words) VALUES(1003022,'And the LORD God said, Behold, the man is become as one of us, to know good and evil: and now, lest he put forth his hand, and take also of the tree of life, and eat, and live for ever:');
+INSERT INTO t1(docid,words) VALUES(1003023,'Therefore the LORD God sent him forth from the garden of Eden, to till the ground from whence he was taken.');
+INSERT INTO t1(docid,words) VALUES(1003024,'So he drove out the man; and he placed at the east of the garden of Eden Cherubims, and a flaming sword which turned every way, to keep the way of the tree of life.');
+INSERT INTO t1(docid,words) VALUES(1004001,'And Adam knew Eve his wife; and she conceived, and bare Cain, and said, I have gotten a man from the LORD.');
+INSERT INTO t1(docid,words) VALUES(1004002,'And she again bare his brother Abel. And Abel was a keeper of sheep, but Cain was a tiller of the ground.');
+INSERT INTO t1(docid,words) VALUES(1004003,'And in process of time it came to pass, that Cain brought of the fruit of the ground an offering unto the LORD.');
+INSERT INTO t1(docid,words) VALUES(1004004,'And Abel, he also brought of the firstlings of his flock and of the fat thereof. And the LORD had respect unto Abel and to his offering:');
+INSERT INTO t1(docid,words) VALUES(1004005,'But unto Cain and to his offering he had not respect. And Cain was very wroth, and his countenance fell.');
+INSERT INTO t1(docid,words) VALUES(1004006,'And the LORD said unto Cain, Why art thou wroth? and why is thy countenance fallen?');
+INSERT INTO t1(docid,words) VALUES(1004007,'If thou doest well, shalt thou not be accepted? and if thou doest not well, sin lieth at the door. And unto thee shall be his desire, and thou shalt rule over him.');
+INSERT INTO t1(docid,words) VALUES(1004008,'And Cain talked with Abel his brother: and it came to pass, when they were in the field, that Cain rose up against Abel his brother, and slew him.');
+INSERT INTO t1(docid,words) VALUES(1004009,'And the LORD said unto Cain, Where is Abel thy brother? And he said, I know not: Am I my brother''s keeper?');
+INSERT INTO t1(docid,words) VALUES(1004010,'And he said, What hast thou done? the voice of thy brother''s blood crieth unto me from the ground.');
+INSERT INTO t1(docid,words) VALUES(1004011,'And now art thou cursed from the earth, which hath opened her mouth to receive thy brother''s blood from thy hand;');
+INSERT INTO t1(docid,words) VALUES(1004012,'When thou tillest the ground, it shall not henceforth yield unto thee her strength; a fugitive and a vagabond shalt thou be in the earth.');
+INSERT INTO t1(docid,words) VALUES(1004013,'And Cain said unto the LORD, My punishment is greater than I can bear.');
+INSERT INTO t1(docid,words) VALUES(1004014,'Behold, thou hast driven me out this day from the face of the earth; and from thy face shall I be hid; and I shall be a fugitive and a vagabond in the earth; and it shall come to pass, that every one that findeth me shall slay me.');
+INSERT INTO t1(docid,words) VALUES(1004015,'And the LORD said unto him, Therefore whosoever slayeth Cain, vengeance shall be taken on him sevenfold. And the LORD set a mark upon Cain, lest any finding him should kill him.');
+INSERT INTO t1(docid,words) VALUES(1004016,'And Cain went out from the presence of the LORD, and dwelt in the land of Nod, on the east of Eden.');
+INSERT INTO t1(docid,words) VALUES(1004017,'And Cain knew his wife; and she conceived, and bare Enoch: and he builded a city, and called the name of the city, after the name of his son, Enoch.');
+INSERT INTO t1(docid,words) VALUES(1004018,'And unto Enoch was born Irad: and Irad begat Mehujael: and Mehujael begat Methusael: and Methusael begat Lamech.');
+INSERT INTO t1(docid,words) VALUES(1004019,'And Lamech took unto him two wives: the name of the one was Adah, and the name of the other Zillah.');
+INSERT INTO t1(docid,words) VALUES(1004020,'And Adah bare Jabal: he was the father of such as dwell in tents, and of such as have cattle.');
+INSERT INTO t1(docid,words) VALUES(1004021,'And his brother''s name was Jubal: he was the father of all such as handle the harp and organ.');
+INSERT INTO t1(docid,words) VALUES(1004022,'And Zillah, she also bare Tubalcain, an instructer of every artificer in brass and iron: and the sister of Tubalcain was Naamah.');
+INSERT INTO t1(docid,words) VALUES(1004023,'And Lamech said unto his wives, Adah and Zillah, Hear my voice; ye wives of Lamech, hearken unto my speech: for I have slain a man to my wounding, and a young man to my hurt.');
+INSERT INTO t1(docid,words) VALUES(1004024,'If Cain shall be avenged sevenfold, truly Lamech seventy and sevenfold.');
+INSERT INTO t1(docid,words) VALUES(1004025,'And Adam knew his wife again; and she bare a son, and called his name Seth: For God, said she, hath appointed me another seed instead of Abel, whom Cain slew.');
+INSERT INTO t1(docid,words) VALUES(1004026,'And to Seth, to him also there was born a son; and he called his name Enos: then began men to call upon the name of the LORD.');
+INSERT INTO t1(docid,words) VALUES(1005001,'This is the book of the generations of Adam. In the day that God created man, in the likeness of God made he him;');
+INSERT INTO t1(docid,words) VALUES(1005002,'Male and female created he them; and blessed them, and called their name Adam, in the day when they were created.');
+INSERT INTO t1(docid,words) VALUES(1005003,'And Adam lived an hundred and thirty years, and begat a son in his own likeness, and after his image; and called his name Seth:');
+INSERT INTO t1(docid,words) VALUES(1005004,'And the days of Adam after he had begotten Seth were eight hundred years: and he begat sons and daughters:');
+INSERT INTO t1(docid,words) VALUES(1005005,'And all the days that Adam lived were nine hundred and thirty years: and he died.');
+INSERT INTO t1(docid,words) VALUES(1005006,'And Seth lived an hundred and five years, and begat Enos:');
+INSERT INTO t1(docid,words) VALUES(1005007,'And Seth lived after he begat Enos eight hundred and seven years, and begat sons and daughters:');
+INSERT INTO t1(docid,words) VALUES(1005008,'And all the days of Seth were nine hundred and twelve years: and he died.');
+INSERT INTO t1(docid,words) VALUES(1005009,'And Enos lived ninety years, and begat Cainan:');
+INSERT INTO t1(docid,words) VALUES(1005010,'And Enos lived after he begat Cainan eight hundred and fifteen years, and begat sons and daughters:');
+INSERT INTO t1(docid,words) VALUES(1005011,'And all the days of Enos were nine hundred and five years: and he died.');
+INSERT INTO t1(docid,words) VALUES(1005012,'And Cainan lived seventy years and begat Mahalaleel:');
+INSERT INTO t1(docid,words) VALUES(1005013,'And Cainan lived after he begat Mahalaleel eight hundred and forty years, and begat sons and daughters:');
+INSERT INTO t1(docid,words) VALUES(1005014,'And all the days of Cainan were nine hundred and ten years: and he died.');
+INSERT INTO t1(docid,words) VALUES(1005015,'And Mahalaleel lived sixty and five years, and begat Jared:');
+INSERT INTO t1(docid,words) VALUES(1005016,'And Mahalaleel lived after he begat Jared eight hundred and thirty years, and begat sons and daughters:');
+INSERT INTO t1(docid,words) VALUES(1005017,'And all the days of Mahalaleel were eight hundred ninety and five years: and he died.');
+INSERT INTO t1(docid,words) VALUES(1005018,'And Jared lived an hundred sixty and two years, and he begat Enoch:');
+INSERT INTO t1(docid,words) VALUES(1005019,'And Jared lived after he begat Enoch eight hundred years, and begat sons and daughters:');
+INSERT INTO t1(docid,words) VALUES(1005020,'And all the days of Jared were nine hundred sixty and two years: and he died.');
+INSERT INTO t1(docid,words) VALUES(1005021,'And Enoch lived sixty and five years, and begat Methuselah:');
+INSERT INTO t1(docid,words) VALUES(1005022,'And Enoch walked with God after he begat Methuselah three hundred years, and begat sons and daughters:');
+INSERT INTO t1(docid,words) VALUES(1005023,'And all the days of Enoch were three hundred sixty and five years:');
+INSERT INTO t1(docid,words) VALUES(1005024,'And Enoch walked with God: and he was not; for God took him.');
+INSERT INTO t1(docid,words) VALUES(1005025,'And Methuselah lived an hundred eighty and seven years, and begat Lamech.');
+INSERT INTO t1(docid,words) VALUES(1005026,'And Methuselah lived after he begat Lamech seven hundred eighty and two years, and begat sons and daughters:');
+INSERT INTO t1(docid,words) VALUES(1005027,'And all the days of Methuselah were nine hundred sixty and nine years: and he died.');
+INSERT INTO t1(docid,words) VALUES(1005028,'And Lamech lived an hundred eighty and two years, and begat a son:');
+INSERT INTO t1(docid,words) VALUES(1005029,'And he called his name Noah, saying, This same shall comfort us concerning our work and toil of our hands, because of the ground which the LORD hath cursed.');
+INSERT INTO t1(docid,words) VALUES(1005030,'And Lamech lived after he begat Noah five hundred ninety and five years, and begat sons and daughters:');
+INSERT INTO t1(docid,words) VALUES(1005031,'And all the days of Lamech were seven hundred seventy and seven years: and he died.');
+INSERT INTO t1(docid,words) VALUES(1005032,'And Noah was five hundred years old: and Noah begat Shem, Ham, and Japheth.');
+INSERT INTO t1(docid,words) VALUES(1006001,'And it came to pass, when men began to multiply on the face of the earth, and daughters were born unto them,');
+INSERT INTO t1(docid,words) VALUES(1006002,'That the sons of God saw the daughters of men that they were fair; and they took them wives of all which they chose.');
+INSERT INTO t1(docid,words) VALUES(1006003,'And the LORD said, My spirit shall not always strive with man, for that he also is flesh: yet his days shall be an hundred and twenty years.');
+INSERT INTO t1(docid,words) VALUES(1006004,'There were giants in the earth in those days; and also after that, when the sons of God came in unto the daughters of men, and they bare children to them, the same became mighty men which were of old, men of renown.');
+INSERT INTO t1(docid,words) VALUES(1006005,'And God saw that the wickedness of man was great in the earth, and that every imagination of the thoughts of his heart was only evil continually.');
+INSERT INTO t1(docid,words) VALUES(1006006,'And it repented the LORD that he had made man on the earth, and it grieved him at his heart.');
+INSERT INTO t1(docid,words) VALUES(1006007,'And the LORD said, I will destroy man whom I have created from the face of the earth; both man, and beast, and the creeping thing, and the fowls of the air; for it repenteth me that I have made them.');
+INSERT INTO t1(docid,words) VALUES(1006008,'But Noah found grace in the eyes of the LORD.');
+INSERT INTO t1(docid,words) VALUES(1006009,'These are the generations of Noah: Noah was a just man and perfect in his generations, and Noah walked with God.');
+INSERT INTO t1(docid,words) VALUES(1006010,'And Noah begat three sons, Shem, Ham, and Japheth.');
+INSERT INTO t1(docid,words) VALUES(1006011,'The earth also was corrupt before God, and the earth was filled with violence.');
+INSERT INTO t1(docid,words) VALUES(1006012,'And God looked upon the earth, and, behold, it was corrupt; for all flesh had corrupted his way upon the earth.');
+INSERT INTO t1(docid,words) VALUES(1006013,'And God said unto Noah, The end of all flesh is come before me; for the earth is filled with violence through them; and, behold, I will destroy them with the earth.');
+INSERT INTO t1(docid,words) VALUES(1006014,'Make thee an ark of gopher wood; rooms shalt thou make in the ark, and shalt pitch it within and without with pitch.');
+INSERT INTO t1(docid,words) VALUES(1006015,'And this is the fashion which thou shalt make it of: The length of the ark shall be three hundred cubits, the breadth of it fifty cubits, and the height of it thirty cubits.');
+INSERT INTO t1(docid,words) VALUES(1006016,'A window shalt thou make to the ark, and in a cubit shalt thou finish it above; and the door of the ark shalt thou set in the side thereof; with lower, second, and third stories shalt thou make it.');
+INSERT INTO t1(docid,words) VALUES(1006017,'And, behold, I, even I, do bring a flood of waters upon the earth, to destroy all flesh, wherein is the breath of life, from under heaven; and every thing that is in the earth shall die.');
+INSERT INTO t1(docid,words) VALUES(1006018,'But with thee will I establish my covenant; and thou shalt come into the ark, thou, and thy sons, and thy wife, and thy sons'' wives with thee.');
+INSERT INTO t1(docid,words) VALUES(1006019,'And of every living thing of all flesh, two of every sort shalt thou bring into the ark, to keep them alive with thee; they shall be male and female.');
+INSERT INTO t1(docid,words) VALUES(1006020,'Of fowls after their kind, and of cattle after their kind, of every creeping thing of the earth after his kind, two of every sort shall come unto thee, to keep them alive.');
+INSERT INTO t1(docid,words) VALUES(1006021,'And take thou unto thee of all food that is eaten, and thou shalt gather it to thee; and it shall be for food for thee, and for them.');
+INSERT INTO t1(docid,words) VALUES(1006022,'Thus did Noah; according to all that God commanded him, so did he.');
+INSERT INTO t1(docid,words) VALUES(1007001,'And the LORD said unto Noah, Come thou and all thy house into the ark; for thee have I seen righteous before me in this generation.');
+INSERT INTO t1(docid,words) VALUES(1007002,'Of every clean beast thou shalt take to thee by sevens, the male and his female: and of beasts that are not clean by two, the male and his female.');
+INSERT INTO t1(docid,words) VALUES(1007003,'Of fowls also of the air by sevens, the male and the female; to keep seed alive upon the face of all the earth.');
+INSERT INTO t1(docid,words) VALUES(1007004,'For yet seven days, and I will cause it to rain upon the earth forty days and forty nights; and every living substance that I have made will I destroy from off the face of the earth.');
+INSERT INTO t1(docid,words) VALUES(1007005,'And Noah did according unto all that the LORD commanded him.');
+INSERT INTO t1(docid,words) VALUES(1007006,'And Noah was six hundred years old when the flood of waters was upon the earth.');
+INSERT INTO t1(docid,words) VALUES(1007007,'And Noah went in, and his sons, and his wife, and his sons'' wives with him, into the ark, because of the waters of the flood.');
+INSERT INTO t1(docid,words) VALUES(1007008,'Of clean beasts, and of beasts that are not clean, and of fowls, and of every thing that creepeth upon the earth,');
+INSERT INTO t1(docid,words) VALUES(1007009,'There went in two and two unto Noah into the ark, the male and the female, as God had commanded Noah.');
+INSERT INTO t1(docid,words) VALUES(1007010,'And it came to pass after seven days, that the waters of the flood were upon the earth.');
+INSERT INTO t1(docid,words) VALUES(1007011,'In the six hundredth year of Noah''s life, in the second month, the seventeenth day of the month, the same day were all the fountains of the great deep broken up, and the windows of heaven were opened.');
+INSERT INTO t1(docid,words) VALUES(1007012,'And the rain was upon the earth forty days and forty nights.');
+INSERT INTO t1(docid,words) VALUES(1007013,'In the selfsame day entered Noah, and Shem, and Ham, and Japheth, the sons of Noah, and Noah''s wife, and the three wives of his sons with them, into the ark;');
+INSERT INTO t1(docid,words) VALUES(1007014,'They, and every beast after his kind, and all the cattle after their kind, and every creeping thing that creepeth upon the earth after his kind, and every fowl after his kind, every bird of every sort.');
+INSERT INTO t1(docid,words) VALUES(1007015,'And they went in unto Noah into the ark, two and two of all flesh, wherein is the breath of life.');
+INSERT INTO t1(docid,words) VALUES(1007016,'And they that went in, went in male and female of all flesh, as God had commanded him: and the LORD shut him in.');
+INSERT INTO t1(docid,words) VALUES(1007017,'And the flood was forty days upon the earth; and the waters increased, and bare up the ark, and it was lift up above the earth.');
+INSERT INTO t1(docid,words) VALUES(1007018,'And the waters prevailed, and were increased greatly upon the earth; and the ark went upon the face of the waters.');
+INSERT INTO t1(docid,words) VALUES(1007019,'And the waters prevailed exceedingly upon the earth; and all the high hills, that were under the whole heaven, were covered.');
+INSERT INTO t1(docid,words) VALUES(1007020,'Fifteen cubits upward did the waters prevail; and the mountains were covered.');
+INSERT INTO t1(docid,words) VALUES(1007021,'And all flesh died that moved upon the earth, both of fowl, and of cattle, and of beast, and of every creeping thing that creepeth upon the earth, and every man:');
+INSERT INTO t1(docid,words) VALUES(1007022,'All in whose nostrils was the breath of life, of all that was in the dry land, died.');
+INSERT INTO t1(docid,words) VALUES(1007023,'And every living substance was destroyed which was upon the face of the ground, both man, and cattle, and the creeping things, and the fowl of the heaven; and they were destroyed from the earth: and Noah only remained alive, and they that were with him in the ark.');
+INSERT INTO t1(docid,words) VALUES(1007024,'And the waters prevailed upon the earth an hundred and fifty days.');
+INSERT INTO t1(docid,words) VALUES(1008001,'And God remembered Noah, and every living thing, and all the cattle that was with him in the ark: and God made a wind to pass over the earth, and the waters asswaged;');
+INSERT INTO t1(docid,words) VALUES(1008002,'The fountains also of the deep and the windows of heaven were stopped, and the rain from heaven was restrained;');
+INSERT INTO t1(docid,words) VALUES(1008003,'And the waters returned from off the earth continually: and after the end of the hundred and fifty days the waters were abated.');
+INSERT INTO t1(docid,words) VALUES(1008004,'And the ark rested in the seventh month, on the seventeenth day of the month, upon the mountains of Ararat.');
+INSERT INTO t1(docid,words) VALUES(1008005,'And the waters decreased continually until the tenth month: in the tenth month, on the first day of the month, were the tops of the mountains seen.');
+INSERT INTO t1(docid,words) VALUES(1008006,'And it came to pass at the end of forty days, that Noah opened the window of the ark which he had made:');
+INSERT INTO t1(docid,words) VALUES(1008007,'And he sent forth a raven, which went forth to and fro, until the waters were dried up from off the earth.');
+INSERT INTO t1(docid,words) VALUES(1008008,'Also he sent forth a dove from him, to see if the waters were abated from off the face of the ground;');
+INSERT INTO t1(docid,words) VALUES(1008009,'But the dove found no rest for the sole of her foot, and she returned unto him into the ark, for the waters were on the face of the whole earth: then he put forth his hand, and took her, and pulled her in unto him into the ark.');
+INSERT INTO t1(docid,words) VALUES(1008010,'And he stayed yet other seven days; and again he sent forth the dove out of the ark;');
+INSERT INTO t1(docid,words) VALUES(1008011,'And the dove came in to him in the evening; and, lo, in her mouth was an olive leaf pluckt off: so Noah knew that the waters were abated from off the earth.');
+INSERT INTO t1(docid,words) VALUES(1008012,'And he stayed yet other seven days; and sent forth the dove; which returned not again unto him any more.');
+INSERT INTO t1(docid,words) VALUES(1008013,'And it came to pass in the six hundredth and first year, in the first month, the first day of the month, the waters were dried up from off the earth: and Noah removed the covering of the ark, and looked, and, behold, the face of the ground was dry.');
+INSERT INTO t1(docid,words) VALUES(1008014,'And in the second month, on the seven and twentieth day of the month, was the earth dried.');
+INSERT INTO t1(docid,words) VALUES(1008015,'And God spake unto Noah, saying,');
+INSERT INTO t1(docid,words) VALUES(1008016,'Go forth of the ark, thou, and thy wife, and thy sons, and thy sons'' wives with thee.');
+INSERT INTO t1(docid,words) VALUES(1008017,'Bring forth with thee every living thing that is with thee, of all flesh, both of fowl, and of cattle, and of every creeping thing that creepeth upon the earth; that they may breed abundantly in the earth, and be fruitful, and multiply upon the earth.');
+INSERT INTO t1(docid,words) VALUES(1008018,'And Noah went forth, and his sons, and his wife, and his sons'' wives with him:');
+INSERT INTO t1(docid,words) VALUES(1008019,'Every beast, every creeping thing, and every fowl, and whatsoever creepeth upon the earth, after their kinds, went forth out of the ark.');
+INSERT INTO t1(docid,words) VALUES(1008020,'And Noah builded an altar unto the LORD; and took of every clean beast, and of every clean fowl, and offered burnt offerings on the altar.');
+INSERT INTO t1(docid,words) VALUES(1008021,'And the LORD smelled a sweet savour; and the LORD said in his heart, I will not again curse the ground any more for man''s sake; for the imagination of man''s heart is evil from his youth; neither will I again smite any more every thing living, as I have done.');
+INSERT INTO t1(docid,words) VALUES(1008022,'While the earth remaineth, seedtime and harvest, and cold and heat, and summer and winter, and day and night shall not cease.');
+INSERT INTO t1(docid,words) VALUES(1009001,'And God blessed Noah and his sons, and said unto them, Be fruitful, and multiply, and replenish the earth.');
+INSERT INTO t1(docid,words) VALUES(1009002,'And the fear of you and the dread of you shall be upon every beast of the earth, and upon every fowl of the air, upon all that moveth upon the earth, and upon all the fishes of the sea; into your hand are they delivered.');
+INSERT INTO t1(docid,words) VALUES(1009003,'Every moving thing that liveth shall be meat for you; even as the green herb have I given you all things.');
+INSERT INTO t1(docid,words) VALUES(1009004,'But flesh with the life thereof, which is the blood thereof, shall ye not eat.');
+INSERT INTO t1(docid,words) VALUES(1009005,'And surely your blood of your lives will I require; at the hand of every beast will I require it, and at the hand of man; at the hand of every man''s brother will I require the life of man.');
+INSERT INTO t1(docid,words) VALUES(1009006,'Whoso sheddeth man''s blood, by man shall his blood be shed: for in the image of God made he man.');
+INSERT INTO t1(docid,words) VALUES(1009007,'And you, be ye fruitful, and multiply; bring forth abundantly in the earth, and multiply therein.');
+INSERT INTO t1(docid,words) VALUES(1009008,'And God spake unto Noah, and to his sons with him, saying,');
+INSERT INTO t1(docid,words) VALUES(1009009,'And I, behold, I establish my covenant with you, and with your seed after you;');
+INSERT INTO t1(docid,words) VALUES(1009010,'And with every living creature that is with you, of the fowl, of the cattle, and of every beast of the earth with you; from all that go out of the ark, to every beast of the earth.');
+INSERT INTO t1(docid,words) VALUES(1009011,'And I will establish my covenant with you, neither shall all flesh be cut off any more by the waters of a flood; neither shall there any more be a flood to destroy the earth.');
+INSERT INTO t1(docid,words) VALUES(1009012,'And God said, This is the token of the covenant which I make between me and you and every living creature that is with you, for perpetual generations:');
+INSERT INTO t1(docid,words) VALUES(1009013,'I do set my bow in the cloud, and it shall be for a token of a covenant between me and the earth.');
+INSERT INTO t1(docid,words) VALUES(1009014,'And it shall come to pass, when I bring a cloud over the earth, that the bow shall be seen in the cloud:');
+INSERT INTO t1(docid,words) VALUES(1009015,'And I will remember my covenant, which is between me and you and every living creature of all flesh; and the waters shall no more become a flood to destroy all flesh.');
+INSERT INTO t1(docid,words) VALUES(1009016,'And the bow shall be in the cloud; and I will look upon it, that I may remember the everlasting covenant between God and every living creature of all flesh that is upon the earth.');
+INSERT INTO t1(docid,words) VALUES(1009017,'And God said unto Noah, This is the token of the covenant, which I have established between me and all flesh that is upon the earth.');
+INSERT INTO t1(docid,words) VALUES(1009018,'And the sons of Noah, that went forth of the ark, were Shem, and Ham, and Japheth: and Ham is the father of Canaan.');
+INSERT INTO t1(docid,words) VALUES(1009019,'These are the three sons of Noah: and of them was the whole earth overspread.');
+INSERT INTO t1(docid,words) VALUES(1009020,'And Noah began to be an husbandman, and he planted a vineyard:');
+INSERT INTO t1(docid,words) VALUES(1009021,'And he drank of the wine, and was drunken; and he was uncovered within his tent.');
+INSERT INTO t1(docid,words) VALUES(1009022,'And Ham, the father of Canaan, saw the nakedness of his father, and told his two brethren without.');
+INSERT INTO t1(docid,words) VALUES(1009023,'And Shem and Japheth took a garment, and laid it upon both their shoulders, and went backward, and covered the nakedness of their father; and their faces were backward, and they saw not their father''s nakedness.');
+INSERT INTO t1(docid,words) VALUES(1009024,'And Noah awoke from his wine, and knew what his younger son had done unto him.');
+INSERT INTO t1(docid,words) VALUES(1009025,'And he said, Cursed be Canaan; a servant of servants shall he be unto his brethren.');
+INSERT INTO t1(docid,words) VALUES(1009026,'And he said, Blessed be the LORD God of Shem; and Canaan shall be his servant.');
+INSERT INTO t1(docid,words) VALUES(1009027,'God shall enlarge Japheth, and he shall dwell in the tents of Shem; and Canaan shall be his servant.');
+INSERT INTO t1(docid,words) VALUES(1009028,'And Noah lived after the flood three hundred and fifty years.');
+INSERT INTO t1(docid,words) VALUES(1009029,'And all the days of Noah were nine hundred and fifty years: and he died.');
+INSERT INTO t1(docid,words) VALUES(1010001,'Now these are the generations of the sons of Noah, Shem, Ham, and Japheth: and unto them were sons born after the flood.');
+INSERT INTO t1(docid,words) VALUES(1010002,'The sons of Japheth; Gomer, and Magog, and Madai, and Javan, and Tubal, and Meshech, and Tiras.');
+INSERT INTO t1(docid,words) VALUES(1010003,'And the sons of Gomer; Ashkenaz, and Riphath, and Togarmah.');
+INSERT INTO t1(docid,words) VALUES(1010004,'And the sons of Javan; Elishah, and Tarshish, Kittim, and Dodanim.');
+INSERT INTO t1(docid,words) VALUES(1010005,'By these were the isles of the Gentiles divided in their lands; every one after his tongue, after their families, in their nations.');
+INSERT INTO t1(docid,words) VALUES(1010006,'And the sons of Ham; Cush, and Mizraim, and Phut, and Canaan.');
+INSERT INTO t1(docid,words) VALUES(1010007,'And the sons of Cush; Seba, and Havilah, and Sabtah, and Raamah, and Sabtechah: and the sons of Raamah; Sheba, and Dedan.');
+INSERT INTO t1(docid,words) VALUES(1010008,'And Cush begat Nimrod: he began to be a mighty one in the earth.');
+INSERT INTO t1(docid,words) VALUES(1010009,'He was a mighty hunter before the LORD: wherefore it is said, Even as Nimrod the mighty hunter before the LORD.');
+INSERT INTO t1(docid,words) VALUES(1010010,'And the beginning of his kingdom was Babel, and Erech, and Accad, and Calneh, in the land of Shinar.');
+INSERT INTO t1(docid,words) VALUES(1010011,'Out of that land went forth Asshur, and builded Nineveh, and the city Rehoboth, and Calah,');
+INSERT INTO t1(docid,words) VALUES(1010012,'And Resen between Nineveh and Calah: the same is a great city.');
+INSERT INTO t1(docid,words) VALUES(1010013,'And Mizraim begat Ludim, and Anamim, and Lehabim, and Naphtuhim,');
+INSERT INTO t1(docid,words) VALUES(1010014,'And Pathrusim, and Casluhim, (out of whom came Philistim,) and Caphtorim.');
+INSERT INTO t1(docid,words) VALUES(1010015,'And Canaan begat Sidon his first born, and Heth,');
+INSERT INTO t1(docid,words) VALUES(1010016,'And the Jebusite, and the Amorite, and the Girgasite,');
+INSERT INTO t1(docid,words) VALUES(1010017,'And the Hivite, and the Arkite, and the Sinite,');
+INSERT INTO t1(docid,words) VALUES(1010018,'And the Arvadite, and the Zemarite, and the Hamathite: and afterward were the families of the Canaanites spread abroad.');
+INSERT INTO t1(docid,words) VALUES(1010019,'And the border of the Canaanites was from Sidon, as thou comest to Gerar, unto Gaza; as thou goest, unto Sodom, and Gomorrah, and Admah, and Zeboim, even unto Lasha.');
+INSERT INTO t1(docid,words) VALUES(1010020,'These are the sons of Ham, after their families, after their tongues, in their countries, and in their nations.');
+INSERT INTO t1(docid,words) VALUES(1010021,'Unto Shem also, the father of all the children of Eber, the brother of Japheth the elder, even to him were children born.');
+INSERT INTO t1(docid,words) VALUES(1010022,'The children of Shem; Elam, and Asshur, and Arphaxad, and Lud, and Aram.');
+INSERT INTO t1(docid,words) VALUES(1010023,'And the children of Aram; Uz, and Hul, and Gether, and Mash.');
+INSERT INTO t1(docid,words) VALUES(1010024,'And Arphaxad begat Salah; and Salah begat Eber.');
+INSERT INTO t1(docid,words) VALUES(1010025,'And unto Eber were born two sons: the name of one was Peleg; for in his days was the earth divided; and his brother''s name was Joktan.');
+INSERT INTO t1(docid,words) VALUES(1010026,'And Joktan begat Almodad, and Sheleph, and Hazarmaveth, and Jerah,');
+INSERT INTO t1(docid,words) VALUES(1010027,'And Hadoram, and Uzal, and Diklah,');
+INSERT INTO t1(docid,words) VALUES(1010028,'And Obal, and Abimael, and Sheba,');
+INSERT INTO t1(docid,words) VALUES(1010029,'And Ophir, and Havilah, and Jobab: all these were the sons of Joktan.');
+INSERT INTO t1(docid,words) VALUES(1010030,'And their dwelling was from Mesha, as thou goest unto Sephar a mount of the east.');
+INSERT INTO t1(docid,words) VALUES(1010031,'These are the sons of Shem, after their families, after their tongues, in their lands, after their nations.');
+INSERT INTO t1(docid,words) VALUES(1010032,'These are the families of the sons of Noah, after their generations, in their nations: and by these were the nations divided in the earth after the flood.');
+INSERT INTO t1(docid,words) VALUES(1011001,'And the whole earth was of one language, and of one speech.');
+INSERT INTO t1(docid,words) VALUES(1011002,'And it came to pass, as they journeyed from the east, that they found a plain in the land of Shinar; and they dwelt there.');
+INSERT INTO t1(docid,words) VALUES(1011003,'And they said one to another, Go to, let us make brick, and burn them thoroughly. And they had brick for stone, and slime had they for morter.');
+INSERT INTO t1(docid,words) VALUES(1011004,'And they said, Go to, let us build us a city and a tower, whose top may reach unto heaven; and let us make us a name, lest we be scattered abroad upon the face of the whole earth.');
+INSERT INTO t1(docid,words) VALUES(1011005,'And the LORD came down to see the city and the tower, which the children of men builded.');
+INSERT INTO t1(docid,words) VALUES(1011006,'And the LORD said, Behold, the people is one, and they have all one language; and this they begin to do: and now nothing will be restrained from them, which they have imagined to do.');
+INSERT INTO t1(docid,words) VALUES(1011007,'Go to, let us go down, and there confound their language, that they may not understand one another''s speech.');
+INSERT INTO t1(docid,words) VALUES(1011008,'So the LORD scattered them abroad from thence upon the face of all the earth: and they left off to build the city.');
+INSERT INTO t1(docid,words) VALUES(1011009,'Therefore is the name of it called Babel; because the LORD did there confound the language of all the earth: and from thence did the LORD scatter them abroad upon the face of all the earth.');
+INSERT INTO t1(docid,words) VALUES(1011010,'These are the generations of Shem: Shem was an hundred years old, and begat Arphaxad two years after the flood:');
+INSERT INTO t1(docid,words) VALUES(1011011,'And Shem lived after he begat Arphaxad five hundred years, and begat sons and daughters.');
+INSERT INTO t1(docid,words) VALUES(1011012,'And Arphaxad lived five and thirty years, and begat Salah:');
+INSERT INTO t1(docid,words) VALUES(1011013,'And Arphaxad lived after he begat Salah four hundred and three years, and begat sons and daughters.');
+INSERT INTO t1(docid,words) VALUES(1011014,'And Salah lived thirty years, and begat Eber:');
+INSERT INTO t1(docid,words) VALUES(1011015,'And Salah lived after he begat Eber four hundred and three years, and begat sons and daughters.');
+INSERT INTO t1(docid,words) VALUES(1011016,'And Eber lived four and thirty years, and begat Peleg:');
+INSERT INTO t1(docid,words) VALUES(1011017,'And Eber lived after he begat Peleg four hundred and thirty years, and begat sons and daughters.');
+INSERT INTO t1(docid,words) VALUES(1011018,'And Peleg lived thirty years, and begat Reu:');
+INSERT INTO t1(docid,words) VALUES(1011019,'And Peleg lived after he begat Reu two hundred and nine years, and begat sons and daughters.');
+INSERT INTO t1(docid,words) VALUES(1011020,'And Reu lived two and thirty years, and begat Serug:');
+INSERT INTO t1(docid,words) VALUES(1011021,'And Reu lived after he begat Serug two hundred and seven years, and begat sons and daughters.');
+INSERT INTO t1(docid,words) VALUES(1011022,'And Serug lived thirty years, and begat Nahor:');
+INSERT INTO t1(docid,words) VALUES(1011023,'And Serug lived after he begat Nahor two hundred years, and begat sons and daughters.');
+INSERT INTO t1(docid,words) VALUES(1011024,'And Nahor lived nine and twenty years, and begat Terah:');
+INSERT INTO t1(docid,words) VALUES(1011025,'And Nahor lived after he begat Terah an hundred and nineteen years, and begat sons and daughters.');
+INSERT INTO t1(docid,words) VALUES(1011026,'And Terah lived seventy years, and begat Abram, Nahor, and Haran.');
+INSERT INTO t1(docid,words) VALUES(1011027,'Now these are the generations of Terah: Terah begat Abram, Nahor, and Haran; and Haran begat Lot.');
+INSERT INTO t1(docid,words) VALUES(1011028,'And Haran died before his father Terah in the land of his nativity, in Ur of the Chaldees.');
+INSERT INTO t1(docid,words) VALUES(1011029,'And Abram and Nahor took them wives: the name of Abram''s wife was Sarai; and the name of Nahor''s wife, Milcah, the daughter of Haran, the father of Milcah, and the father of Iscah.');
+INSERT INTO t1(docid,words) VALUES(1011030,'But Sarai was barren; she had no child.');
+INSERT INTO t1(docid,words) VALUES(1011031,'And Terah took Abram his son, and Lot the son of Haran his son''s son, and Sarai his daughter in law, his son Abram''s wife; and they went forth with them from Ur of the Chaldees, to go into the land of Canaan; and they came unto Haran, and dwelt there.');
+INSERT INTO t1(docid,words) VALUES(1011032,'And the days of Terah were two hundred and five years: and Terah died in Haran.');
+INSERT INTO t1(docid,words) VALUES(1012001,'Now the LORD had said unto Abram, Get thee out of thy country, and from thy kindred, and from thy father''s house, unto a land that I will shew thee:');
+INSERT INTO t1(docid,words) VALUES(1012002,'And I will make of thee a great nation, and I will bless thee, and make thy name great; and thou shalt be a blessing:');
+INSERT INTO t1(docid,words) VALUES(1012003,'And I will bless them that bless thee, and curse him that curseth thee: and in thee shall all families of the earth be blessed.');
+INSERT INTO t1(docid,words) VALUES(1012004,'So Abram departed, as the LORD had spoken unto him; and Lot went with him: and Abram was seventy and five years old when he departed out of Haran.');
+INSERT INTO t1(docid,words) VALUES(1012005,'And Abram took Sarai his wife, and Lot his brother''s son, and all their substance that they had gathered, and the souls that they had gotten in Haran; and they went forth to go into the land of Canaan; and into the land of Canaan they came.');
+INSERT INTO t1(docid,words) VALUES(1012006,'And Abram passed through the land unto the place of Sichem, unto the plain of Moreh. And the Canaanite was then in the land.');
+INSERT INTO t1(docid,words) VALUES(1012007,'And the LORD appeared unto Abram, and said, Unto thy seed will I give this land: and there builded he an altar unto the LORD, who appeared unto him.');
+INSERT INTO t1(docid,words) VALUES(1012008,'And he removed from thence unto a mountain on the east of Bethel, and pitched his tent, having Bethel on the west, and Hai on the east: and there he builded an altar unto the LORD, and called upon the name of the LORD.');
+INSERT INTO t1(docid,words) VALUES(1012009,'And Abram journeyed, going on still toward the south.');
+INSERT INTO t1(docid,words) VALUES(1012010,'And there was a famine in the land: and Abram went down into Egypt to sojourn there; for the famine was grievous in the land.');
+INSERT INTO t1(docid,words) VALUES(1012011,'And it came to pass, when he was come near to enter into Egypt, that he said unto Sarai his wife, Behold now, I know that thou art a fair woman to look upon:');
+INSERT INTO t1(docid,words) VALUES(1012012,'Therefore it shall come to pass, when the Egyptians shall see thee, that they shall say, This is his wife: and they will kill me, but they will save thee alive.');
+INSERT INTO t1(docid,words) VALUES(1012013,'Say, I pray thee, thou art my sister: that it may be well with me for thy sake; and my soul shall live because of thee.');
+INSERT INTO t1(docid,words) VALUES(1012014,'And it came to pass, that, when Abram was come into Egypt, the Egyptians beheld the woman that she was very fair.');
+INSERT INTO t1(docid,words) VALUES(1012015,'The princes also of Pharaoh saw her, and commended her before Pharaoh: and the woman was taken into Pharaoh''s house.');
+INSERT INTO t1(docid,words) VALUES(1012016,'And he entreated Abram well for her sake: and he had sheep, and oxen, and he asses, and menservants, and maidservants, and she asses, and camels.');
+INSERT INTO t1(docid,words) VALUES(1012017,'And the LORD plagued Pharaoh and his house with great plagues because of Sarai Abram''s wife.');
+INSERT INTO t1(docid,words) VALUES(1012018,'And Pharaoh called Abram and said, What is this that thou hast done unto me? why didst thou not tell me that she was thy wife?');
+INSERT INTO t1(docid,words) VALUES(1012019,'Why saidst thou, She is my sister? so I might have taken her to me to wife: now therefore behold thy wife, take her, and go thy way.');
+INSERT INTO t1(docid,words) VALUES(1012020,'And Pharaoh commanded his men concerning him: and they sent him away, and his wife, and all that he had.');
+INSERT INTO t1(docid,words) VALUES(1013001,'And Abram went up out of Egypt, he, and his wife, and all that he had, and Lot with him, into the south.');
+INSERT INTO t1(docid,words) VALUES(1013002,'And Abram was very rich in cattle, in silver, and in gold.');
+INSERT INTO t1(docid,words) VALUES(1013003,'And he went on his journeys from the south even to Bethel, unto the place where his tent had been at the beginning, between Bethel and Hai;');
+INSERT INTO t1(docid,words) VALUES(1013004,'Unto the place of the altar, which he had make there at the first: and there Abram called on the name of the LORD.');
+INSERT INTO t1(docid,words) VALUES(1013005,'And Lot also, which went with Abram, had flocks, and herds, and tents.');
+INSERT INTO t1(docid,words) VALUES(1013006,'And the land was not able to bear them, that they might dwell together: for their substance was great, so that they could not dwell together.');
+INSERT INTO t1(docid,words) VALUES(1013007,'And there was a strife between the herdmen of Abram''s cattle and the herdmen of Lot''s cattle: and the Canaanite and the Perizzite dwelled then in the land.');
+INSERT INTO t1(docid,words) VALUES(1013008,'And Abram said unto Lot, Let there be no strife, I pray thee, between me and thee, and between my herdmen and thy herdmen; for we be brethren.');
+INSERT INTO t1(docid,words) VALUES(1013009,'Is not the whole land before thee? separate thyself, I pray thee, from me: if thou wilt take the left hand, then I will go to the right; or if thou depart to the right hand, then I will go to the left.');
+INSERT INTO t1(docid,words) VALUES(1013010,'And Lot lifted up his eyes, and beheld all the plain of Jordan, that it was well watered every where, before the LORD destroyed Sodom and Gomorrah, even as the garden of the LORD, like the land of Egypt, as thou comest unto Zoar.');
+INSERT INTO t1(docid,words) VALUES(1013011,'Then Lot chose him all the plain of Jordan; and Lot journeyed east: and they separated themselves the one from the other.');
+INSERT INTO t1(docid,words) VALUES(1013012,'Abram dwelled in the land of Canaan, and Lot dwelled in the cities of the plain, and pitched his tent toward Sodom.');
+INSERT INTO t1(docid,words) VALUES(1013013,'But the men of Sodom were wicked and sinners before the LORD exceedingly.');
+INSERT INTO t1(docid,words) VALUES(1013014,'And the LORD said unto Abram, after that Lot was separated from him, Lift up now thine eyes, and look from the place where thou art northward, and southward, and eastward, and westward:');
+INSERT INTO t1(docid,words) VALUES(1013015,'For all the land which thou seest, to thee will I give it, and to thy seed for ever.');
+INSERT INTO t1(docid,words) VALUES(1013016,'And I will make thy seed as the dust of the earth: so that if a man can number the dust of the earth, then shall thy seed also be numbered.');
+INSERT INTO t1(docid,words) VALUES(1013017,'Arise, walk through the land in the length of it and in the breadth of it; for I will give it unto thee.');
+INSERT INTO t1(docid,words) VALUES(1013018,'Then Abram removed his tent, and came and dwelt in the plain of Mamre, which is in Hebron, and built there an altar unto the LORD.');
+INSERT INTO t1(docid,words) VALUES(1014001,'And it came to pass in the days of Amraphel king of Shinar, Arioch king of Ellasar, Chedorlaomer king of Elam, and Tidal king of nations;');
+INSERT INTO t1(docid,words) VALUES(1014002,'That these made war with Bera king of Sodom, and with Birsha king of Gomorrah, Shinab king of Admah, and Shemeber king of Zeboiim, and the king of Bela, which is Zoar.');
+INSERT INTO t1(docid,words) VALUES(1014003,'All these were joined together in the vale of Siddim, which is the salt sea.');
+INSERT INTO t1(docid,words) VALUES(1014004,'Twelve years they served Chedorlaomer, and in the thirteenth year they rebelled.');
+INSERT INTO t1(docid,words) VALUES(1014005,'And in the fourteenth year came Chedorlaomer, and the kings that were with him, and smote the Rephaims in Ashteroth Karnaim, and the Zuzims in Ham, and the Emins in Shaveh Kiriathaim,');
+INSERT INTO t1(docid,words) VALUES(1014006,'And the Horites in their mount Seir, unto Elparan, which is by the wilderness.');
+INSERT INTO t1(docid,words) VALUES(1014007,'And they returned, and came to Enmishpat, which is Kadesh, and smote all the country of the Amalekites, and also the Amorites, that dwelt in Hazezontamar.');
+INSERT INTO t1(docid,words) VALUES(1014008,'And there went out the king of Sodom, and the king of Gomorrah, and the king of Admah, and the king of Zeboiim, and the king of Bela (the same is Zoar;) and they joined battle with them in the vale of Siddim;');
+INSERT INTO t1(docid,words) VALUES(1014009,'With Chedorlaomer the king of Elam, and with Tidal king of nations, and Amraphel king of Shinar, and Arioch king of Ellasar; four kings with five.');
+INSERT INTO t1(docid,words) VALUES(1014010,'And the vale of Siddim was full of slimepits; and the kings of Sodom and Gomorrah fled, and fell there; and they that remained fled to the mountain.');
+INSERT INTO t1(docid,words) VALUES(1014011,'And they took all the goods of Sodom and Gomorrah, and all their victuals, and went their way.');
+INSERT INTO t1(docid,words) VALUES(1014012,'And they took Lot, Abram''s brother''s son, who dwelt in Sodom, and his goods, and departed.');
+INSERT INTO t1(docid,words) VALUES(1014013,'And there came one that had escaped, and told Abram the Hebrew; for he dwelt in the plain of Mamre the Amorite, brother of Eshcol, and brother of Aner: and these were confederate with Abram.');
+INSERT INTO t1(docid,words) VALUES(1014014,'And when Abram heard that his brother was taken captive, he armed his trained servants, born in his own house, three hundred and eighteen, and pursued them unto Dan.');
+INSERT INTO t1(docid,words) VALUES(1014015,'And he divided himself against them, he and his servants, by night, and smote them, and pursued them unto Hobah, which is on the left hand of Damascus.');
+INSERT INTO t1(docid,words) VALUES(1014016,'And he brought back all the goods, and also brought again his brother Lot, and his goods, and the women also, and the people.');
+INSERT INTO t1(docid,words) VALUES(1014017,'And the king of Sodom went out to meet him after his return from the slaughter of Chedorlaomer, and of the kings that were with him, at the valley of Shaveh, which is the king''s dale.');
+INSERT INTO t1(docid,words) VALUES(1014018,'And Melchizedek king of Salem brought forth bread and wine: and he was the priest of the most high God.');
+INSERT INTO t1(docid,words) VALUES(1014019,'And he blessed him, and said, Blessed be Abram of the most high God, possessor of heaven and earth:');
+INSERT INTO t1(docid,words) VALUES(1014020,'And blessed be the most high God, which hath delivered thine enemies into thy hand. And he gave him tithes of all.');
+INSERT INTO t1(docid,words) VALUES(1014021,'And the king of Sodom said unto Abram, Give me the persons, and take the goods to thyself.');
+INSERT INTO t1(docid,words) VALUES(1014022,'And Abram said to the king of Sodom, I have lift up mine hand unto the LORD, the most high God, the possessor of heaven and earth,');
+INSERT INTO t1(docid,words) VALUES(1014023,'That I will not take from a thread even to a shoelatchet, and that I will not take any thing that is thine, lest thou shouldest say, I have made Abram rich:');
+INSERT INTO t1(docid,words) VALUES(1014024,'Save only that which the young men have eaten, and the portion of the men which went with me, Aner, Eshcol, and Mamre; let them take their portion.');
+INSERT INTO t1(docid,words) VALUES(1015001,'After these things the word of the LORD came unto Abram in a vision, saying, Fear not, Abram: I am thy shield, and thy exceeding great reward.');
+INSERT INTO t1(docid,words) VALUES(1015002,'And Abram said, LORD God, what wilt thou give me, seeing I go childless, and the steward of my house is this Eliezer of Damascus?');
+INSERT INTO t1(docid,words) VALUES(1015003,'And Abram said, Behold, to me thou hast given no seed: and, lo, one born in my house is mine heir.');
+INSERT INTO t1(docid,words) VALUES(1015004,'And, behold, the word of the LORD came unto him, saying, This shall not be thine heir; but he that shall come forth out of thine own bowels shall be thine heir.');
+INSERT INTO t1(docid,words) VALUES(1015005,'And he brought him forth abroad, and said, Look now toward heaven, and tell the stars, if thou be able to number them: and he said unto him, So shall thy seed be.');
+INSERT INTO t1(docid,words) VALUES(1015006,'And he believed in the LORD; and he counted it to him for righteousness.');
+INSERT INTO t1(docid,words) VALUES(1015007,'And he said unto him, I am the LORD that brought thee out of Ur of the Chaldees, to give thee this land to inherit it.');
+INSERT INTO t1(docid,words) VALUES(1015008,'And he said, LORD God, whereby shall I know that I shall inherit it?');
+INSERT INTO t1(docid,words) VALUES(1015009,'And he said unto him, Take me an heifer of three years old, and a she goat of three years old, and a ram of three years old, and a turtledove, and a young pigeon.');
+INSERT INTO t1(docid,words) VALUES(1015010,'And he took unto him all these, and divided them in the midst, and laid each piece one against another: but the birds divided he not.');
+INSERT INTO t1(docid,words) VALUES(1015011,'And when the fowls came down upon the carcases, Abram drove them away.');
+INSERT INTO t1(docid,words) VALUES(1015012,'And when the sun was going down, a deep sleep fell upon Abram; and, lo, an horror of great darkness fell upon him.');
+INSERT INTO t1(docid,words) VALUES(1015013,'And he said unto Abram, Know of a surety that thy seed shall be a stranger in a land that is not their''s, and shall serve them; and they shall afflict them four hundred years;');
+INSERT INTO t1(docid,words) VALUES(1015014,'And also that nation, whom they shall serve, will I judge: and afterward shall they come out with great substance.');
+INSERT INTO t1(docid,words) VALUES(1015015,'And thou shalt go to thy fathers in peace; thou shalt be buried in a good old age.');
+INSERT INTO t1(docid,words) VALUES(1015016,'But in the fourth generation they shall come hither again: for the iniquity of the Amorites is not yet full.');
+INSERT INTO t1(docid,words) VALUES(1015017,'And it came to pass, that, when the sun went down, and it was dark, behold a smoking furnace, and a burning lamp that passed between those pieces.');
+INSERT INTO t1(docid,words) VALUES(1015018,'In the same day the LORD made a covenant with Abram, saying, Unto thy seed have I given this land, from the river of Egypt unto the great river, the river Euphrates:');
+INSERT INTO t1(docid,words) VALUES(1015019,'The Kenites, and the Kenizzites, and the Kadmonites,');
+INSERT INTO t1(docid,words) VALUES(1015020,'And the Hittites, and the Perizzites, and the Rephaims,');
+INSERT INTO t1(docid,words) VALUES(1015021,'And the Amorites, and the Canaanites, and the Girgashites, and the Jebusites.');
+INSERT INTO t1(docid,words) VALUES(1016001,'Now Sarai Abram''s wife bare him no children: and she had an handmaid, an Egyptian, whose name was Hagar.');
+INSERT INTO t1(docid,words) VALUES(1016002,'And Sarai said unto Abram, Behold now, the LORD hath restrained me from bearing: I pray thee, go in unto my maid; it may be that I may obtain children by her. And Abram hearkened to the voice of Sarai.');
+INSERT INTO t1(docid,words) VALUES(1016003,'And Sarai Abram''s wife took Hagar her maid the Egyptian, after Abram had dwelt ten years in the land of Canaan, and gave her to her husband Abram to be his wife.');
+INSERT INTO t1(docid,words) VALUES(1016004,'And he went in unto Hagar, and she conceived: and when she saw that she had conceived, her mistress was despised in her eyes.');
+INSERT INTO t1(docid,words) VALUES(1016005,'And Sarai said unto Abram, My wrong be upon thee: I have given my maid into thy bosom; and when she saw that she had conceived, I was despised in her eyes: the LORD judge between me and thee.');
+INSERT INTO t1(docid,words) VALUES(1016006,'But Abram said unto Sarai, Behold, thy maid is in thine hand; do to her as it pleaseth thee. And when Sarai dealt hardly with her, she fled from her face.');
+INSERT INTO t1(docid,words) VALUES(1016007,'And the angel of the LORD found her by a fountain of water in the wilderness, by the fountain in the way to Shur.');
+INSERT INTO t1(docid,words) VALUES(1016008,'And he said, Hagar, Sarai''s maid, whence camest thou? and whither wilt thou go? And she said, I flee from the face of my mistress Sarai.');
+INSERT INTO t1(docid,words) VALUES(1016009,'And the angel of the LORD said unto her, Return to thy mistress, and submit thyself under her hands.');
+INSERT INTO t1(docid,words) VALUES(1016010,'And the angel of the LORD said unto her, I will multiply thy seed exceedingly, that it shall not be numbered for multitude.');
+INSERT INTO t1(docid,words) VALUES(1016011,'And the angel of the LORD said unto her, Behold, thou art with child and shalt bear a son, and shalt call his name Ishmael; because the LORD hath heard thy affliction.');
+INSERT INTO t1(docid,words) VALUES(1016012,'And he will be a wild man; his hand will be against every man, and every man''s hand against him; and he shall dwell in the presence of all his brethren.');
+INSERT INTO t1(docid,words) VALUES(1016013,'And she called the name of the LORD that spake unto her, Thou God seest me: for she said, Have I also here looked after him that seeth me?');
+INSERT INTO t1(docid,words) VALUES(1016014,'Wherefore the well was called Beerlahairoi; behold, it is between Kadesh and Bered.');
+INSERT INTO t1(docid,words) VALUES(1016015,'And Hagar bare Abram a son: and Abram called his son''s name, which Hagar bare, Ishmael.');
+INSERT INTO t1(docid,words) VALUES(1016016,'And Abram was fourscore and six years old, when Hagar bare Ishmael to Abram.');
+INSERT INTO t1(docid,words) VALUES(1017001,'And when Abram was ninety years old and nine, the LORD appeared to Abram, and said unto him, I am the Almighty God; walk before me, and be thou perfect.');
+INSERT INTO t1(docid,words) VALUES(1017002,'And I will make my covenant between me and thee, and will multiply thee exceedingly.');
+INSERT INTO t1(docid,words) VALUES(1017003,'And Abram fell on his face: and God talked with him, saying,');
+INSERT INTO t1(docid,words) VALUES(1017004,'As for me, behold, my covenant is with thee, and thou shalt be a father of many nations.');
+INSERT INTO t1(docid,words) VALUES(1017005,'Neither shall thy name any more be called Abram, but thy name shall be Abraham; for a father of many nations have I made thee.');
+INSERT INTO t1(docid,words) VALUES(1017006,'And I will make thee exceeding fruitful, and I will make nations of thee, and kings shall come out of thee.');
+INSERT INTO t1(docid,words) VALUES(1017007,'And I will establish my covenant between me and thee and thy seed after thee in their generations for an everlasting covenant, to be a God unto thee, and to thy seed after thee.');
+INSERT INTO t1(docid,words) VALUES(1017008,'And I will give unto thee, and to thy seed after thee, the land wherein thou art a stranger, all the land of Canaan, for an everlasting possession; and I will be their God.');
+INSERT INTO t1(docid,words) VALUES(1017009,'And God said unto Abraham, Thou shalt keep my covenant therefore, thou, and thy seed after thee in their generations.');
+INSERT INTO t1(docid,words) VALUES(1017010,'This is my covenant, which ye shall keep, between me and you and thy seed after thee; Every man child among you shall be circumcised.');
+INSERT INTO t1(docid,words) VALUES(1017011,'And ye shall circumcise the flesh of your foreskin; and it shall be a token of the covenant betwixt me and you.');
+INSERT INTO t1(docid,words) VALUES(1017012,'And he that is eight days old shall be circumcised among you, every man child in your generations, he that is born in the house, or bought with money of any stranger, which is not of thy seed.');
+INSERT INTO t1(docid,words) VALUES(1017013,'He that is born in thy house, and he that is bought with thy money, must needs be circumcised: and my covenant shall be in your flesh for an everlasting covenant.');
+INSERT INTO t1(docid,words) VALUES(1017014,'And the uncircumcised man child whose flesh of his foreskin is not circumcised, that soul shall be cut off from his people; he hath broken my covenant.');
+INSERT INTO t1(docid,words) VALUES(1017015,'And God said unto Abraham, As for Sarai thy wife, thou shalt not call her name Sarai, but Sarah shall her name be.');
+INSERT INTO t1(docid,words) VALUES(1017016,'And I will bless her, and give thee a son also of her: yea, I will bless her, and she shall be a mother of nations; kings of people shall be of her.');
+INSERT INTO t1(docid,words) VALUES(1017017,'Then Abraham fell upon his face, and laughed, and said in his heart, Shall a child be born unto him that is an hundred years old? and shall Sarah, that is ninety years old, bear?');
+INSERT INTO t1(docid,words) VALUES(1017018,'And Abraham said unto God, O that Ishmael might live before thee!');
+INSERT INTO t1(docid,words) VALUES(1017019,'And God said, Sarah thy wife shall bear thee a son indeed; and thou shalt call his name Isaac: and I will establish my covenant with him for an everlasting covenant, and with his seed after him.');
+INSERT INTO t1(docid,words) VALUES(1017020,'And as for Ishmael, I have heard thee: Behold, I have blessed him, and will make him fruitful, and will multiply him exceedingly; twelve princes shall he beget, and I will make him a great nation.');
+INSERT INTO t1(docid,words) VALUES(1017021,'But my covenant will I establish with Isaac, which Sarah shall bear unto thee at this set time in the next year.');
+INSERT INTO t1(docid,words) VALUES(1017022,'And he left off talking with him, and God went up from Abraham.');
+INSERT INTO t1(docid,words) VALUES(1017023,'And Abraham took Ishmael his son, and all that were born in his house, and all that were bought with his money, every male among the men of Abraham''s house; and circumcised the flesh of their foreskin in the selfsame day, as God had said unto him.');
+INSERT INTO t1(docid,words) VALUES(1017024,'And Abraham was ninety years old and nine, when he was circumcised in the flesh of his foreskin.');
+INSERT INTO t1(docid,words) VALUES(1017025,'And Ishmael his son was thirteen years old, when he was circumcised in the flesh of his foreskin.');
+INSERT INTO t1(docid,words) VALUES(1017026,'In the selfsame day was Abraham circumcised, and Ishmael his son.');
+INSERT INTO t1(docid,words) VALUES(1017027,'And all the men of his house, born in the house, and bought with money of the stranger, were circumcised with him.');
+INSERT INTO t1(docid,words) VALUES(1018001,'And the LORD appeared unto him in the plains of Mamre: and he sat in the tent door in the heat of the day;');
+INSERT INTO t1(docid,words) VALUES(1018002,'And he lift up his eyes and looked, and, lo, three men stood by him: and when he saw them, he ran to meet them from the tent door, and bowed himself toward the ground,');
+INSERT INTO t1(docid,words) VALUES(1018003,'And said, My LORD, if now I have found favour in thy sight, pass not away, I pray thee, from thy servant:');
+INSERT INTO t1(docid,words) VALUES(1018004,'Let a little water, I pray you, be fetched, and wash your feet, and rest yourselves under the tree:');
+INSERT INTO t1(docid,words) VALUES(1018005,'And I will fetch a morsel of bread, and comfort ye your hearts; after that ye shall pass on: for therefore are ye come to your servant. And they said, So do, as thou hast said.');
+INSERT INTO t1(docid,words) VALUES(1018006,'And Abraham hastened into the tent unto Sarah, and said, Make ready quickly three measures of fine meal, knead it, and make cakes upon the hearth.');
+INSERT INTO t1(docid,words) VALUES(1018007,'And Abraham ran unto the herd, and fetcht a calf tender and good, and gave it unto a young man; and he hasted to dress it.');
+INSERT INTO t1(docid,words) VALUES(1018008,'And he took butter, and milk, and the calf which he had dressed, and set it before them; and he stood by them under the tree, and they did eat.');
+INSERT INTO t1(docid,words) VALUES(1018009,'And they said unto him, Where is Sarah thy wife? And he said, Behold, in the tent.');
+INSERT INTO t1(docid,words) VALUES(1018010,'And he said, I will certainly return unto thee according to the time of life; and, lo, Sarah thy wife shall have a son. And Sarah heard it in the tent door, which was behind him.');
+INSERT INTO t1(docid,words) VALUES(1018011,'Now Abraham and Sarah were old and well stricken in age; and it ceased to be with Sarah after the manner of women.');
+INSERT INTO t1(docid,words) VALUES(1018012,'Therefore Sarah laughed within herself, saying, After I am waxed old shall I have pleasure, my lord being old also?');
+INSERT INTO t1(docid,words) VALUES(1018013,'And the LORD said unto Abraham, Wherefore did Sarah laugh, saying, Shall I of a surety bear a child, which am old?');
+INSERT INTO t1(docid,words) VALUES(1018014,'Is any thing too hard for the LORD? At the time appointed I will return unto thee, according to the time of life, and Sarah shall have a son.');
+INSERT INTO t1(docid,words) VALUES(1018015,'Then Sarah denied, saying, I laughed not; for she was afraid. And he said, Nay; but thou didst laugh.');
+INSERT INTO t1(docid,words) VALUES(1018016,'And the men rose up from thence, and looked toward Sodom: and Abraham went with them to bring them on the way.');
+INSERT INTO t1(docid,words) VALUES(1018017,'And the LORD said, Shall I hide from Abraham that thing which I do;');
+INSERT INTO t1(docid,words) VALUES(1018018,'Seeing that Abraham shall surely become a great and mighty nation, and all the nations of the earth shall be blessed in him?');
+INSERT INTO t1(docid,words) VALUES(1018019,'For I know him, that he will command his children and his household after him, and they shall keep the way of the LORD, to do justice and judgment; that the LORD may bring upon Abraham that which he hath spoken of him.');
+INSERT INTO t1(docid,words) VALUES(1018020,'And the LORD said, Because the cry of Sodom and Gomorrah is great, and because their sin is very grievous;');
+INSERT INTO t1(docid,words) VALUES(1018021,'I will go down now, and see whether they have done altogether according to the cry of it, which is come unto me; and if not, I will know.');
+INSERT INTO t1(docid,words) VALUES(1018022,'And the men turned their faces from thence, and went toward Sodom: but Abraham stood yet before the LORD.');
+INSERT INTO t1(docid,words) VALUES(1018023,'And Abraham drew near, and said, Wilt thou also destroy the righteous with the wicked?');
+INSERT INTO t1(docid,words) VALUES(1018024,'Peradventure there be fifty righteous within the city: wilt thou also destroy and not spare the place for the fifty righteous that are therein?');
+INSERT INTO t1(docid,words) VALUES(1018025,'That be far from thee to do after this manner, to slay the righteous with the wicked: and that the righteous should be as the wicked, that be far from thee: Shall not the Judge of all the earth do right?');
+INSERT INTO t1(docid,words) VALUES(1018026,'And the LORD said, If I find in Sodom fifty righteous within the city, then I will spare all the place for their sakes.');
+INSERT INTO t1(docid,words) VALUES(1018027,'And Abraham answered and said, Behold now, I have taken upon me to speak unto the LORD, which am but dust and ashes:');
+INSERT INTO t1(docid,words) VALUES(1018028,'Peradventure there shall lack five of the fifty righteous: wilt thou destroy all the city for lack of five? And he said, If I find there forty and five, I will not destroy it.');
+INSERT INTO t1(docid,words) VALUES(1018029,'And he spake unto him yet again, and said, Peradventure there shall be forty found there. And he said, I will not do it for forty''s sake.');
+INSERT INTO t1(docid,words) VALUES(1018030,'And he said unto him, Oh let not the LORD be angry, and I will speak: Peradventure there shall thirty be found there. And he said, I will not do it, if I find thirty there.');
+INSERT INTO t1(docid,words) VALUES(1018031,'And he said, Behold now, I have taken upon me to speak unto the LORD: Peradventure there shall be twenty found there. And he said, I will not destroy it for twenty''s sake.');
+INSERT INTO t1(docid,words) VALUES(1018032,'And he said, Oh let not the LORD be angry, and I will speak yet but this once: Peradventure ten shall be found there. And he said, I will not destroy it for ten''s sake.');
+INSERT INTO t1(docid,words) VALUES(1018033,'And the LORD went his way, as soon as he had left communing with Abraham: and Abraham returned unto his place.');
+INSERT INTO t1(docid,words) VALUES(1019001,'And there came two angels to Sodom at even; and Lot sat in the gate of Sodom: and Lot seeing them rose up to meet them; and he bowed himself with his face toward the ground;');
+INSERT INTO t1(docid,words) VALUES(1019002,'And he said, Behold now, my lords, turn in, I pray you, into your servant''s house, and tarry all night, and wash your feet, and ye shall rise up early, and go on your ways. And they said, Nay; but we will abide in the street all night.');
+INSERT INTO t1(docid,words) VALUES(1019003,'And he pressed upon them greatly; and they turned in unto him, and entered into his house; and he made them a feast, and did bake unleavened bread, and they did eat.');
+INSERT INTO t1(docid,words) VALUES(1019004,'But before they lay down, the men of the city, even the men of Sodom, compassed the house round, both old and young, all the people from every quarter:');
+INSERT INTO t1(docid,words) VALUES(1019005,'And they called unto Lot, and said unto him, Where are the men which came in to thee this night? bring them out unto us, that we may know them.');
+INSERT INTO t1(docid,words) VALUES(1019006,'And Lot went out at the door unto them, and shut the door after him,');
+INSERT INTO t1(docid,words) VALUES(1019007,'And said, I pray you, brethren, do not so wickedly.');
+INSERT INTO t1(docid,words) VALUES(1019008,'Behold now, I have two daughters which have not known man; let me, I pray you, bring them out unto you, and do ye to them as is good in your eyes: only unto these men do nothing; for therefore came they under the shadow of my roof.');
+INSERT INTO t1(docid,words) VALUES(1019009,'And they said, Stand back. And they said again, This one fellow came in to sojourn, and he will needs be a judge: now will we deal worse with thee, than with them. And they pressed sore upon the man, even Lot, and came near to break the door.');
+INSERT INTO t1(docid,words) VALUES(1019010,'But the men put forth their hand, and pulled Lot into the house to them, and shut to the door.');
+INSERT INTO t1(docid,words) VALUES(1019011,'And they smote the men that were at the door of the house with blindness, both small and great: so that they wearied themselves to find the door.');
+INSERT INTO t1(docid,words) VALUES(1019012,'And the men said unto Lot, Hast thou here any besides? son in law, and thy sons, and thy daughters, and whatsoever thou hast in the city, bring them out of this place:');
+INSERT INTO t1(docid,words) VALUES(1019013,'For we will destroy this place, because the cry of them is waxen great before the face of the LORD; and the LORD hath sent us to destroy it.');
+INSERT INTO t1(docid,words) VALUES(1019014,'And Lot went out, and spake unto his sons in law, which married his daughters, and said, Up, get you out of this place; for the LORD will destroy this city. But he seemed as one that mocked unto his sons in law.');
+INSERT INTO t1(docid,words) VALUES(1019015,'And when the morning arose, then the angels hastened Lot, saying, Arise, take thy wife, and thy two daughters, which are here; lest thou be consumed in the iniquity of the city.');
+INSERT INTO t1(docid,words) VALUES(1019016,'And while he lingered, the men laid hold upon his hand, and upon the hand of his wife, and upon the hand of his two daughters; the LORD being merciful unto him: and they brought him forth, and set him without the city.');
+INSERT INTO t1(docid,words) VALUES(1019017,'And it came to pass, when they had brought them forth abroad, that he said, Escape for thy life; look not behind thee, neither stay thou in all the plain; escape to the mountain, lest thou be consumed.');
+INSERT INTO t1(docid,words) VALUES(1019018,'And Lot said unto them, Oh, not so, my LORD:');
+INSERT INTO t1(docid,words) VALUES(1019019,'Behold now, thy servant hath found grace in thy sight, and thou hast magnified thy mercy, which thou hast shewed unto me in saving my life; and I cannot escape to the mountain, lest some evil take me, and I die:');
+INSERT INTO t1(docid,words) VALUES(1019020,'Behold now, this city is near to flee unto, and it is a little one: Oh, let me escape thither, (is it not a little one?) and my soul shall live.');
+INSERT INTO t1(docid,words) VALUES(1019021,'And he said unto him, See, I have accepted thee concerning this thing also, that I will not overthrow this city, for the which thou hast spoken.');
+INSERT INTO t1(docid,words) VALUES(1019022,'Haste thee, escape thither; for I cannot do anything till thou be come thither. Therefore the name of the city was called Zoar.');
+INSERT INTO t1(docid,words) VALUES(1019023,'The sun was risen upon the earth when Lot entered into Zoar.');
+INSERT INTO t1(docid,words) VALUES(1019024,'Then the LORD rained upon Sodom and upon Gomorrah brimstone and fire from the LORD out of heaven;');
+INSERT INTO t1(docid,words) VALUES(1019025,'And he overthrew those cities, and all the plain, and all the inhabitants of the cities, and that which grew upon the ground.');
+INSERT INTO t1(docid,words) VALUES(1019026,'But his wife looked back from behind him, and she became a pillar of salt.');
+INSERT INTO t1(docid,words) VALUES(1019027,'And Abraham gat up early in the morning to the place where he stood before the LORD:');
+INSERT INTO t1(docid,words) VALUES(1019028,'And he looked toward Sodom and Gomorrah, and toward all the land of the plain, and beheld, and, lo, the smoke of the country went up as the smoke of a furnace.');
+INSERT INTO t1(docid,words) VALUES(1019029,'And it came to pass, when God destroyed the cities of the plain, that God remembered Abraham, and sent Lot out of the midst of the overthrow, when he overthrew the cities in the which Lot dwelt.');
+INSERT INTO t1(docid,words) VALUES(1019030,'And Lot went up out of Zoar, and dwelt in the mountain, and his two daughters with him; for he feared to dwell in Zoar: and he dwelt in a cave, he and his two daughters.');
+INSERT INTO t1(docid,words) VALUES(1019031,'And the firstborn said unto the younger, Our father is old, and there is not a man in the earth to come in unto us after the manner of all the earth:');
+INSERT INTO t1(docid,words) VALUES(1019032,'Come, let us make our father drink wine, and we will lie with him, that we may preserve seed of our father.');
+INSERT INTO t1(docid,words) VALUES(1019033,'And they made their father drink wine that night: and the firstborn went in, and lay with her father; and he perceived not when she lay down, nor when she arose.');
+INSERT INTO t1(docid,words) VALUES(1019034,'And it came to pass on the morrow, that the firstborn said unto the younger, Behold, I lay yesternight with my father: let us make him drink wine this night also; and go thou in, and lie with him, that we may preserve seed of our father.');
+INSERT INTO t1(docid,words) VALUES(1019035,'And they made their father drink wine that night also: and the younger arose, and lay with him; and he perceived not when she lay down, nor when she arose.');
+INSERT INTO t1(docid,words) VALUES(1019036,'Thus were both the daughters of Lot with child by their father.');
+INSERT INTO t1(docid,words) VALUES(1019037,'And the first born bare a son, and called his name Moab: the same is the father of the Moabites unto this day.');
+INSERT INTO t1(docid,words) VALUES(1019038,'And the younger, she also bare a son, and called his name Benammi: the same is the father of the children of Ammon unto this day.');
+INSERT INTO t1(docid,words) VALUES(1020001,'And Abraham journeyed from thence toward the south country, and dwelled between Kadesh and Shur, and sojourned in Gerar.');
+INSERT INTO t1(docid,words) VALUES(1020002,'And Abraham said of Sarah his wife, She is my sister: and Abimelech king of Gerar sent, and took Sarah.');
+INSERT INTO t1(docid,words) VALUES(1020003,'But God came to Abimelech in a dream by night, and said to him, Behold, thou art but a dead man, for the woman which thou hast taken; for she is a man''s wife.');
+INSERT INTO t1(docid,words) VALUES(1020004,'But Abimelech had not come near her: and he said, LORD, wilt thou slay also a righteous nation?');
+INSERT INTO t1(docid,words) VALUES(1020005,'Said he not unto me, She is my sister? and she, even she herself said, He is my brother: in the integrity of my heart and innocency of my hands have I done this.');
+INSERT INTO t1(docid,words) VALUES(1020006,'And God said unto him in a dream, Yea, I know that thou didst this in the integrity of thy heart; for I also withheld thee from sinning against me: therefore suffered I thee not to touch her.');
+INSERT INTO t1(docid,words) VALUES(1020007,'Now therefore restore the man his wife; for he is a prophet, and he shall pray for thee, and thou shalt live: and if thou restore her not, know thou that thou shalt surely die, thou, and all that are thine.');
+INSERT INTO t1(docid,words) VALUES(1020008,'Therefore Abimelech rose early in the morning, and called all his servants, and told all these things in their ears: and the men were sore afraid.');
+INSERT INTO t1(docid,words) VALUES(1020009,'Then Abimelech called Abraham, and said unto him, What hast thou done unto us? and what have I offended thee, that thou hast brought on me and on my kingdom a great sin? thou hast done deeds unto me that ought not to be done.');
+INSERT INTO t1(docid,words) VALUES(1020010,'And Abimelech said unto Abraham, What sawest thou, that thou hast done this thing?');
+INSERT INTO t1(docid,words) VALUES(1020011,'And Abraham said, Because I thought, Surely the fear of God is not in this place; and they will slay me for my wife''s sake.');
+INSERT INTO t1(docid,words) VALUES(1020012,'And yet indeed she is my sister; she is the daughter of my father, but not the daughter of my mother; and she became my wife.');
+INSERT INTO t1(docid,words) VALUES(1020013,'And it came to pass, when God caused me to wander from my father''s house, that I said unto her, This is thy kindness which thou shalt shew unto me; at every place whither we shall come, say of me, He is my brother.');
+INSERT INTO t1(docid,words) VALUES(1020014,'And Abimelech took sheep, and oxen, and menservants, and womenservants, and gave them unto Abraham, and restored him Sarah his wife.');
+INSERT INTO t1(docid,words) VALUES(1020015,'And Abimelech said, Behold, my land is before thee: dwell where it pleaseth thee.');
+INSERT INTO t1(docid,words) VALUES(1020016,'And unto Sarah he said, Behold, I have given thy brother a thousand pieces of silver: behold, he is to thee a covering of the eyes, unto all that are with thee, and with all other: thus she was reproved.');
+INSERT INTO t1(docid,words) VALUES(1020017,'So Abraham prayed unto God: and God healed Abimelech, and his wife, and his maidservants; and they bare children.');
+INSERT INTO t1(docid,words) VALUES(1020018,'For the LORD had fast closed up all the wombs of the house of Abimelech, because of Sarah Abraham''s wife.');
+INSERT INTO t1(docid,words) VALUES(1021001,'And the LORD visited Sarah as he had said, and the LORD did unto Sarah as he had spoken.');
+INSERT INTO t1(docid,words) VALUES(1021002,'For Sarah conceived, and bare Abraham a son in his old age, at the set time of which God had spoken to him.');
+INSERT INTO t1(docid,words) VALUES(1021003,'And Abraham called the name of his son that was born unto him, whom Sarah bare to him, Isaac.');
+INSERT INTO t1(docid,words) VALUES(1021004,'And Abraham circumcised his son Isaac being eight days old, as God had commanded him.');
+INSERT INTO t1(docid,words) VALUES(1021005,'And Abraham was an hundred years old, when his son Isaac was born unto him.');
+INSERT INTO t1(docid,words) VALUES(1021006,'And Sarah said, God hath made me to laugh, so that all that hear will laugh with me.');
+INSERT INTO t1(docid,words) VALUES(1021007,'And she said, Who would have said unto Abraham, that Sarah should have given children suck? for I have born him a son in his old age.');
+INSERT INTO t1(docid,words) VALUES(1021008,'And the child grew, and was weaned: and Abraham made a great feast the same day that Isaac was weaned.');
+INSERT INTO t1(docid,words) VALUES(1021009,'And Sarah saw the son of Hagar the Egyptian, which she had born unto Abraham, mocking.');
+INSERT INTO t1(docid,words) VALUES(1021010,'Wherefore she said unto Abraham, Cast out this bondwoman and her son: for the son of this bondwoman shall not be heir with my son, even with Isaac.');
+INSERT INTO t1(docid,words) VALUES(1021011,'And the thing was very grievous in Abraham''s sight because of his son.');
+INSERT INTO t1(docid,words) VALUES(1021012,'And God said unto Abraham, Let it not be grievous in thy sight because of the lad, and because of thy bondwoman; in all that Sarah hath said unto thee, hearken unto her voice; for in Isaac shall thy seed be called.');
+INSERT INTO t1(docid,words) VALUES(1021013,'And also of the son of the bondwoman will I make a nation, because he is thy seed.');
+INSERT INTO t1(docid,words) VALUES(1021014,'And Abraham rose up early in the morning, and took bread, and a bottle of water, and gave it unto Hagar, putting it on her shoulder, and the child, and sent her away: and she departed, and wandered in the wilderness of Beersheba.');
+INSERT INTO t1(docid,words) VALUES(1021015,'And the water was spent in the bottle, and she cast the child under one of the shrubs.');
+INSERT INTO t1(docid,words) VALUES(1021016,'And she went, and sat her down over against him a good way off, as it were a bow shot: for she said, Let me not see the death of the child. And she sat over against him, and lift up her voice, and wept.');
+INSERT INTO t1(docid,words) VALUES(1021017,'And God heard the voice of the lad; and the angel of God called to Hagar out of heaven, and said unto her, What aileth thee, Hagar? fear not; for God hath heard the voice of the lad where he is.');
+INSERT INTO t1(docid,words) VALUES(1021018,'Arise, lift up the lad, and hold him in thine hand; for I will make him a great nation.');
+INSERT INTO t1(docid,words) VALUES(1021019,'And God opened her eyes, and she saw a well of water; and she went, and filled the bottle with water, and gave the lad drink.');
+INSERT INTO t1(docid,words) VALUES(1021020,'And God was with the lad; and he grew, and dwelt in the wilderness, and became an archer.');
+INSERT INTO t1(docid,words) VALUES(1021021,'And he dwelt in the wilderness of Paran: and his mother took him a wife out of the land of Egypt.');
+INSERT INTO t1(docid,words) VALUES(1021022,'And it came to pass at that time, that Abimelech and Phichol the chief captain of his host spake unto Abraham, saying, God is with thee in all that thou doest:');
+INSERT INTO t1(docid,words) VALUES(1021023,'Now therefore swear unto me here by God that thou wilt not deal falsely with me, nor with my son, nor with my son''s son: but according to the kindness that I have done unto thee, thou shalt do unto me, and to the land wherein thou hast sojourned.');
+INSERT INTO t1(docid,words) VALUES(1021024,'And Abraham said, I will swear.');
+INSERT INTO t1(docid,words) VALUES(1021025,'And Abraham reproved Abimelech because of a well of water, which Abimelech''s servants had violently taken away.');
+INSERT INTO t1(docid,words) VALUES(1021026,'And Abimelech said, I wot not who hath done this thing; neither didst thou tell me, neither yet heard I of it, but to day.');
+INSERT INTO t1(docid,words) VALUES(1021027,'And Abraham took sheep and oxen, and gave them unto Abimelech; and both of them made a covenant.');
+INSERT INTO t1(docid,words) VALUES(1021028,'And Abraham set seven ewe lambs of the flock by themselves.');
+INSERT INTO t1(docid,words) VALUES(1021029,'And Abimelech said unto Abraham, What mean these seven ewe lambs which thou hast set by themselves?');
+INSERT INTO t1(docid,words) VALUES(1021030,'And he said, For these seven ewe lambs shalt thou take of my hand, that they may be a witness unto me, that I have digged this well.');
+INSERT INTO t1(docid,words) VALUES(1021031,'Wherefore he called that place Beersheba; because there they sware both of them.');
+INSERT INTO t1(docid,words) VALUES(1021032,'Thus they made a covenant at Beersheba: then Abimelech rose up, and Phichol the chief captain of his host, and they returned into the land of the Philistines.');
+INSERT INTO t1(docid,words) VALUES(1021033,'And Abraham planted a grove in Beersheba, and called there on the name of the LORD, the everlasting God.');
+INSERT INTO t1(docid,words) VALUES(1021034,'And Abraham sojourned in the Philistines'' land many days.');
+INSERT INTO t1(docid,words) VALUES(1022001,'And it came to pass after these things, that God did tempt Abraham, and said unto him, Abraham: and he said, Behold, here I am.');
+INSERT INTO t1(docid,words) VALUES(1022002,'And he said, Take now thy son, thine only son Isaac, whom thou lovest, and get thee into the land of Moriah; and offer him there for a burnt offering upon one of the mountains which I will tell thee of.');
+INSERT INTO t1(docid,words) VALUES(1022003,'And Abraham rose up early in the morning, and saddled his ass, and took two of his young men with him, and Isaac his son, and clave the wood for the burnt offering, and rose up, and went unto the place of which God had told him.');
+INSERT INTO t1(docid,words) VALUES(1022004,'Then on the third day Abraham lifted up his eyes, and saw the place afar off.');
+INSERT INTO t1(docid,words) VALUES(1022005,'And Abraham said unto his young men, Abide ye here with the ass; and I and the lad will go yonder and worship, and come again to you.');
+INSERT INTO t1(docid,words) VALUES(1022006,'And Abraham took the wood of the burnt offering, and laid it upon Isaac his son; and he took the fire in his hand, and a knife; and they went both of them together.');
+INSERT INTO t1(docid,words) VALUES(1022007,'And Isaac spake unto Abraham his father, and said, My father: and he said, Here am I, my son. And he said, Behold the fire and the wood: but where is the lamb for a burnt offering?');
+INSERT INTO t1(docid,words) VALUES(1022008,'And Abraham said, My son, God will provide himself a lamb for a burnt offering: so they went both of them together.');
+INSERT INTO t1(docid,words) VALUES(1022009,'And they came to the place which God had told him of; and Abraham built an altar there, and laid the wood in order, and bound Isaac his son, and laid him on the altar upon the wood.');
+INSERT INTO t1(docid,words) VALUES(1022010,'And Abraham stretched forth his hand, and took the knife to slay his son.');
+INSERT INTO t1(docid,words) VALUES(1022011,'And the angel of the LORD called unto him out of heaven, and said, Abraham, Abraham: and he said, Here am I.');
+INSERT INTO t1(docid,words) VALUES(1022012,'And he said, Lay not thine hand upon the lad, neither do thou any thing unto him: for now I know that thou fearest God, seeing thou hast not withheld thy son, thine only son from me.');
+INSERT INTO t1(docid,words) VALUES(1022013,'And Abraham lifted up his eyes, and looked, and behold behind him a ram caught in a thicket by his horns: and Abraham went and took the ram, and offered him up for a burnt offering in the stead of his son.');
+INSERT INTO t1(docid,words) VALUES(1022014,'And Abraham called the name of that place Jehovahjireh: as it is said to this day, In the mount of the LORD it shall be seen.');
+INSERT INTO t1(docid,words) VALUES(1022015,'And the angel of the LORD called unto Abraham out of heaven the second time,');
+INSERT INTO t1(docid,words) VALUES(1022016,'And said, By myself have I sworn, saith the LORD, for because thou hast done this thing, and hast not withheld thy son, thine only son:');
+INSERT INTO t1(docid,words) VALUES(1022017,'That in blessing I will bless thee, and in multiplying I will multiply thy seed as the stars of the heaven, and as the sand which is upon the sea shore; and thy seed shall possess the gate of his enemies;');
+INSERT INTO t1(docid,words) VALUES(1022018,'And in thy seed shall all the nations of the earth be blessed; because thou hast obeyed my voice.');
+INSERT INTO t1(docid,words) VALUES(1022019,'So Abraham returned unto his young men, and they rose up and went together to Beersheba; and Abraham dwelt at Beersheba.');
+INSERT INTO t1(docid,words) VALUES(1022020,'And it came to pass after these things, that it was told Abraham, saying, Behold, Milcah, she hath also born children unto thy brother Nahor;');
+INSERT INTO t1(docid,words) VALUES(1022021,'Huz his firstborn, and Buz his brother, and Kemuel the father of Aram,');
+INSERT INTO t1(docid,words) VALUES(1022022,'And Chesed, and Hazo, and Pildash, and Jidlaph, and Bethuel.');
+INSERT INTO t1(docid,words) VALUES(1022023,'And Bethuel begat Rebekah: these eight Milcah did bear to Nahor, Abraham''s brother.');
+INSERT INTO t1(docid,words) VALUES(1022024,'And his concubine, whose name was Reumah, she bare also Tebah, and Gaham, and Thahash, and Maachah.');
+INSERT INTO t1(docid,words) VALUES(1023001,'And Sarah was an hundred and seven and twenty years old: these were the years of the life of Sarah.');
+INSERT INTO t1(docid,words) VALUES(1023002,'And Sarah died in Kirjatharba; the same is Hebron in the land of Canaan: and Abraham came to mourn for Sarah, and to weep for her.');
+INSERT INTO t1(docid,words) VALUES(1023003,'And Abraham stood up from before his dead, and spake unto the sons of Heth, saying,');
+INSERT INTO t1(docid,words) VALUES(1023004,'I am a stranger and a sojourner with you: give me a possession of a buryingplace with you, that I may bury my dead out of my sight.');
+INSERT INTO t1(docid,words) VALUES(1023005,'And the children of Heth answered Abraham, saying unto him,');
+INSERT INTO t1(docid,words) VALUES(1023006,'Hear us, my lord: thou art a mighty prince among us: in the choice of our sepulchres bury thy dead; none of us shall withhold from thee his sepulchre, but that thou mayest bury thy dead.');
+INSERT INTO t1(docid,words) VALUES(1023007,'And Abraham stood up, and bowed himself to the people of the land, even to the children of Heth.');
+INSERT INTO t1(docid,words) VALUES(1023008,'And he communed with them, saying, If it be your mind that I should bury my dead out of my sight; hear me, and intreat for me to Ephron the son of Zohar,');
+INSERT INTO t1(docid,words) VALUES(1023009,'That he may give me the cave of Machpelah, which he hath, which is in the end of his field; for as much money as it is worth he shall give it me for a possession of a buryingplace amongst you.');
+INSERT INTO t1(docid,words) VALUES(1023010,'And Ephron dwelt among the children of Heth: and Ephron the Hittite answered Abraham in the audience of the children of Heth, even of all that went in at the gate of his city, saying,');
+INSERT INTO t1(docid,words) VALUES(1023011,'Nay, my lord, hear me: the field give I thee, and the cave that is therein, I give it thee; in the presence of the sons of my people give I it thee: bury thy dead.');
+INSERT INTO t1(docid,words) VALUES(1023012,'And Abraham bowed down himself before the people of the land.');
+INSERT INTO t1(docid,words) VALUES(1023013,'And he spake unto Ephron in the audience of the people of the land, saying, But if thou wilt give it, I pray thee, hear me: I will give thee money for the field; take it of me, and I will bury my dead there.');
+INSERT INTO t1(docid,words) VALUES(1023014,'And Ephron answered Abraham, saying unto him,');
+INSERT INTO t1(docid,words) VALUES(1023015,'My lord, hearken unto me: the land is worth four hundred shekels of silver; what is that betwixt me and thee? bury therefore thy dead.');
+INSERT INTO t1(docid,words) VALUES(1023016,'And Abraham hearkened unto Ephron; and Abraham weighed to Ephron the silver, which he had named in the audience of the sons of Heth, four hundred shekels of silver, current money with the merchant.');
+INSERT INTO t1(docid,words) VALUES(1023017,'And the field of Ephron which was in Machpelah, which was before Mamre, the field, and the cave which was therein, and all the trees that were in the field, that were in all the borders round about, were made sure');
+INSERT INTO t1(docid,words) VALUES(1023018,'Unto Abraham for a possession in the presence of the children of Heth, before all that went in at the gate of his city.');
+INSERT INTO t1(docid,words) VALUES(1023019,'And after this, Abraham buried Sarah his wife in the cave of the field of Machpelah before Mamre: the same is Hebron in the land of Canaan.');
+INSERT INTO t1(docid,words) VALUES(1023020,'And the field, and the cave that is therein, were made sure unto Abraham for a possession of a buryingplace by the sons of Heth.');
+INSERT INTO t1(docid,words) VALUES(1024001,'And Abraham was old, and well stricken in age: and the LORD had blessed Abraham in all things.');
+INSERT INTO t1(docid,words) VALUES(1024002,'And Abraham said unto his eldest servant of his house, that ruled over all that he had, Put, I pray thee, thy hand under my thigh:');
+INSERT INTO t1(docid,words) VALUES(1024003,'And I will make thee swear by the LORD, the God of heaven, and the God of the earth, that thou shalt not take a wife unto my son of the daughters of the Canaanites, among whom I dwell:');
+INSERT INTO t1(docid,words) VALUES(1024004,'But thou shalt go unto my country, and to my kindred, and take a wife unto my son Isaac.');
+INSERT INTO t1(docid,words) VALUES(1024005,'And the servant said unto him, Peradventure the woman will not be willing to follow me unto this land: must I needs bring thy son again unto the land from whence thou camest?');
+INSERT INTO t1(docid,words) VALUES(1024006,'And Abraham said unto him, Beware thou that thou bring not my son thither again.');
+INSERT INTO t1(docid,words) VALUES(1024007,'The LORD God of heaven, which took me from my father''s house, and from the land of my kindred, and which spake unto me, and that sware unto me, saying, Unto thy seed will I give this land; he shall send his angel before thee, and thou shalt take a wife unto my son from thence.');
+INSERT INTO t1(docid,words) VALUES(1024008,'And if the woman will not be willing to follow thee, then thou shalt be clear from this my oath: only bring not my son thither again.');
+INSERT INTO t1(docid,words) VALUES(1024009,'And the servant put his hand under the thigh of Abraham his master, and sware to him concerning that matter.');
+INSERT INTO t1(docid,words) VALUES(1024010,'And the servant took ten camels of the camels of his master, and departed; for all the goods of his master were in his hand: and he arose, and went to Mesopotamia, unto the city of Nahor.');
+INSERT INTO t1(docid,words) VALUES(1024011,'And he made his camels to kneel down without the city by a well of water at the time of the evening, even the time that women go out to draw water.');
+INSERT INTO t1(docid,words) VALUES(1024012,'And he said O LORD God of my master Abraham, I pray thee, send me good speed this day, and shew kindness unto my master Abraham.');
+INSERT INTO t1(docid,words) VALUES(1024013,'Behold, I stand here by the well of water; and the daughters of the men of the city come out to draw water:');
+INSERT INTO t1(docid,words) VALUES(1024014,'And let it come to pass, that the damsel to whom I shall say, Let down thy pitcher, I pray thee, that I may drink; and she shall say, Drink, and I will give thy camels drink also: let the same be she that thou hast appointed for thy servant Isaac; and thereby shall I know that thou hast shewed kindness unto my master.');
+INSERT INTO t1(docid,words) VALUES(1024015,'And it came to pass, before he had done speaking, that, behold, Rebekah came out, who was born to Bethuel, son of Milcah, the wife of Nahor, Abraham''s brother, with her pitcher upon her shoulder.');
+INSERT INTO t1(docid,words) VALUES(1024016,'And the damsel was very fair to look upon, a virgin, neither had any man known her: and she went down to the well, and filled her pitcher, and came up.');
+INSERT INTO t1(docid,words) VALUES(1024017,'And the servant ran to meet her, and said, Let me, I pray thee, drink a little water of thy pitcher.');
+INSERT INTO t1(docid,words) VALUES(1024018,'And she said, Drink, my lord: and she hasted, and let down her pitcher upon her hand, and gave him drink.');
+INSERT INTO t1(docid,words) VALUES(1024019,'And when she had done giving him drink, she said, I will draw water for thy camels also, until they have done drinking.');
+INSERT INTO t1(docid,words) VALUES(1024020,'And she hasted, and emptied her pitcher into the trough, and ran again unto the well to draw water, and drew for all his camels.');
+INSERT INTO t1(docid,words) VALUES(1024021,'And the man wondering at her held his peace, to wit whether the LORD had made his journey prosperous or not.');
+INSERT INTO t1(docid,words) VALUES(1024022,'And it came to pass, as the camels had done drinking, that the man took a golden earring of half a shekel weight, and two bracelets for her hands of ten shekels weight of gold;');
+INSERT INTO t1(docid,words) VALUES(1024023,'And said, Whose daughter art thou? tell me, I pray thee: is there room in thy father''s house for us to lodge in?');
+INSERT INTO t1(docid,words) VALUES(1024024,'And she said unto him, I am the daughter of Bethuel the son of Milcah, which she bare unto Nahor.');
+INSERT INTO t1(docid,words) VALUES(1024025,'She said moreover unto him, We have both straw and provender enough, and room to lodge in.');
+INSERT INTO t1(docid,words) VALUES(1024026,'And the man bowed down his head, and worshipped the LORD.');
+INSERT INTO t1(docid,words) VALUES(1024027,'And he said, Blessed be the LORD God of my master Abraham, who hath not left destitute my master of his mercy and his truth: I being in the way, the LORD led me to the house of my master''s brethren.');
+INSERT INTO t1(docid,words) VALUES(1024028,'And the damsel ran, and told them of her mother''s house these things.');
+INSERT INTO t1(docid,words) VALUES(1024029,'And Rebekah had a brother, and his name was Laban: and Laban ran out unto the man, unto the well.');
+INSERT INTO t1(docid,words) VALUES(1024030,'And it came to pass, when he saw the earring and bracelets upon his sister''s hands, and when he heard the words of Rebekah his sister, saying, Thus spake the man unto me; that he came unto the man; and, behold, he stood by the camels at the well.');
+INSERT INTO t1(docid,words) VALUES(1024031,'And he said, Come in, thou blessed of the LORD; wherefore standest thou without? for I have prepared the house, and room for the camels.');
+INSERT INTO t1(docid,words) VALUES(1024032,'And the man came into the house: and he ungirded his camels, and gave straw and provender for the camels, and water to wash his feet, and the men''s feet that were with him.');
+INSERT INTO t1(docid,words) VALUES(1024033,'And there was set meat before him to eat: but he said, I will not eat, until I have told mine errand. And he said, Speak on.');
+INSERT INTO t1(docid,words) VALUES(1024034,'And he said, I am Abraham''s servant.');
+INSERT INTO t1(docid,words) VALUES(1024035,'And the LORD hath blessed my master greatly; and he is become great: and he hath given him flocks, and herds, and silver, and gold, and menservants, and maidservants, and camels, and asses.');
+INSERT INTO t1(docid,words) VALUES(1024036,'And Sarah my master''s wife bare a son to my master when she was old: and unto him hath he given all that he hath.');
+INSERT INTO t1(docid,words) VALUES(1024037,'And my master made me swear, saying, Thou shalt not take a wife to my son of the daughters of the Canaanites, in whose land I dwell:');
+INSERT INTO t1(docid,words) VALUES(1024038,'But thou shalt go unto my father''s house, and to my kindred, and take a wife unto my son.');
+INSERT INTO t1(docid,words) VALUES(1024039,'And I said unto my master, Peradventure the woman will not follow me.');
+INSERT INTO t1(docid,words) VALUES(1024040,'And he said unto me, The LORD, before whom I walk, will send his angel with thee, and prosper thy way; and thou shalt take a wife for my son of my kindred, and of my father''s house:');
+INSERT INTO t1(docid,words) VALUES(1024041,'Then shalt thou be clear from this my oath, when thou comest to my kindred; and if they give not thee one, thou shalt be clear from my oath.');
+INSERT INTO t1(docid,words) VALUES(1024042,'And I came this day unto the well, and said, O LORD God of my master Abraham, if now thou do prosper my way which I go:');
+INSERT INTO t1(docid,words) VALUES(1024043,'Behold, I stand by the well of water; and it shall come to pass, that when the virgin cometh forth to draw water, and I say to her, Give me, I pray thee, a little water of thy pitcher to drink;');
+INSERT INTO t1(docid,words) VALUES(1024044,'And she say to me, Both drink thou, and I will also draw for thy camels: let the same be the woman whom the LORD hath appointed out for my master''s son.');
+INSERT INTO t1(docid,words) VALUES(1024045,'And before I had done speaking in mine heart, behold, Rebekah came forth with her pitcher on her shoulder; and she went down unto the well, and drew water: and I said unto her, Let me drink, I pray thee.');
+INSERT INTO t1(docid,words) VALUES(1024046,'And she made haste, and let down her pitcher from her shoulder, and said, Drink, and I will give thy camels drink also: so I drank, and she made the camels drink also.');
+INSERT INTO t1(docid,words) VALUES(1024047,'And I asked her, and said, Whose daughter art thou? And she said, the daughter of Bethuel, Nahor''s son, whom Milcah bare unto him: and I put the earring upon her face, and the bracelets upon her hands.');
+INSERT INTO t1(docid,words) VALUES(1024048,'And I bowed down my head, and worshipped the LORD, and blessed the LORD God of my master Abraham, which had led me in the right way to take my master''s brother''s daughter unto his son.');
+INSERT INTO t1(docid,words) VALUES(1024049,'And now if ye will deal kindly and truly with my master, tell me: and if not, tell me; that I may turn to the right hand, or to the left.');
+INSERT INTO t1(docid,words) VALUES(1024050,'Then Laban and Bethuel answered and said, The thing proceedeth from the LORD: we cannot speak unto thee bad or good.');
+INSERT INTO t1(docid,words) VALUES(1024051,'Behold, Rebekah is before thee, take her, and go, and let her be thy master''s son''s wife, as the LORD hath spoken.');
+INSERT INTO t1(docid,words) VALUES(1024052,'And it came to pass, that, when Abraham''s servant heard their words, he worshipped the LORD, bowing himself to the earth.');
+INSERT INTO t1(docid,words) VALUES(1024053,'And the servant brought forth jewels of silver, and jewels of gold, and raiment, and gave them to Rebekah: he gave also to her brother and to her mother precious things.');
+INSERT INTO t1(docid,words) VALUES(1024054,'And they did eat and drink, he and the men that were with him, and tarried all night; and they rose up in the morning, and he said, Send me away unto my master.');
+INSERT INTO t1(docid,words) VALUES(1024055,'And her brother and her mother said, Let the damsel abide with us a few days, at the least ten; after that she shall go.');
+INSERT INTO t1(docid,words) VALUES(1024056,'And he said unto them, Hinder me not, seeing the LORD hath prospered my way; send me away that I may go to my master.');
+INSERT INTO t1(docid,words) VALUES(1024057,'And they said, We will call the damsel, and enquire at her mouth.');
+INSERT INTO t1(docid,words) VALUES(1024058,'And they called Rebekah, and said unto her, Wilt thou go with this man? And she said, I will go.');
+INSERT INTO t1(docid,words) VALUES(1024059,'And they sent away Rebekah their sister, and her nurse, and Abraham''s servant, and his men.');
+INSERT INTO t1(docid,words) VALUES(1024060,'And they blessed Rebekah, and said unto her, Thou art our sister, be thou the mother of thousands of millions, and let thy seed possess the gate of those which hate them.');
+INSERT INTO t1(docid,words) VALUES(1024061,'And Rebekah arose, and her damsels, and they rode upon the camels, and followed the man: and the servant took Rebekah, and went his way.');
+INSERT INTO t1(docid,words) VALUES(1024062,'And Isaac came from the way of the well Lahairoi; for he dwelt in the south country.');
+INSERT INTO t1(docid,words) VALUES(1024063,'And Isaac went out to meditate in the field at the eventide: and he lifted up his eyes, and saw, and, behold, the camels were coming.');
+INSERT INTO t1(docid,words) VALUES(1024064,'And Rebekah lifted up her eyes, and when she saw Isaac, she lighted off the camel.');
+INSERT INTO t1(docid,words) VALUES(1024065,'For she had said unto the servant, What man is this that walketh in the field to meet us? And the servant had said, It is my master: therefore she took a vail, and covered herself.');
+INSERT INTO t1(docid,words) VALUES(1024066,'And the servant told Isaac all things that he had done.');
+INSERT INTO t1(docid,words) VALUES(1024067,'And Isaac brought her into his mother Sarah''s tent, and took Rebekah, and she became his wife; and he loved her: and Isaac was comforted after his mother''s death.');
+INSERT INTO t1(docid,words) VALUES(1025001,'Then again Abraham took a wife, and her name was Keturah.');
+INSERT INTO t1(docid,words) VALUES(1025002,'And she bare him Zimran, and Jokshan, and Medan, and Midian, and Ishbak, and Shuah.');
+INSERT INTO t1(docid,words) VALUES(1025003,'And Jokshan begat Sheba, and Dedan. And the sons of Dedan were Asshurim, and Letushim, and Leummim.');
+INSERT INTO t1(docid,words) VALUES(1025004,'And the sons of Midian; Ephah, and Epher, and Hanoch, and Abidah, and Eldaah. All these were the children of Keturah.');
+INSERT INTO t1(docid,words) VALUES(1025005,'And Abraham gave all that he had unto Isaac.');
+INSERT INTO t1(docid,words) VALUES(1025006,'But unto the sons of the concubines, which Abraham had, Abraham gave gifts, and sent them away from Isaac his son, while he yet lived, eastward, unto the east country.');
+INSERT INTO t1(docid,words) VALUES(1025007,'And these are the days of the years of Abraham''s life which he lived, an hundred threescore and fifteen years.');
+INSERT INTO t1(docid,words) VALUES(1025008,'Then Abraham gave up the ghost, and died in a good old age, an old man, and full of years; and was gathered to his people.');
+INSERT INTO t1(docid,words) VALUES(1025009,'And his sons Isaac and Ishmael buried him in the cave of Machpelah, in the field of Ephron the son of Zohar the Hittite, which is before Mamre;');
+INSERT INTO t1(docid,words) VALUES(1025010,'The field which Abraham purchased of the sons of Heth: there was Abraham buried, and Sarah his wife.');
+INSERT INTO t1(docid,words) VALUES(1025011,'And it came to pass after the death of Abraham, that God blessed his son Isaac; and Isaac dwelt by the well Lahairoi.');
+INSERT INTO t1(docid,words) VALUES(1025012,'Now these are the generations of Ishmael, Abraham''s son, whom Hagar the Egyptian, Sarah''s handmaid, bare unto Abraham:');
+INSERT INTO t1(docid,words) VALUES(1025013,'And these are the names of the sons of Ishmael, by their names, according to their generations: the firstborn of Ishmael, Nebajoth; and Kedar, and Adbeel, and Mibsam,');
+INSERT INTO t1(docid,words) VALUES(1025014,'And Mishma, and Dumah, and Massa,');
+INSERT INTO t1(docid,words) VALUES(1025015,'Hadar, and Tema, Jetur, Naphish, and Kedemah:');
+INSERT INTO t1(docid,words) VALUES(1025016,'These are the sons of Ishmael, and these are their names, by their towns, and by their castles; twelve princes according to their nations.');
+INSERT INTO t1(docid,words) VALUES(1025017,'And these are the years of the life of Ishmael, an hundred and thirty and seven years: and he gave up the ghost and died; and was gathered unto his people.');
+INSERT INTO t1(docid,words) VALUES(1025018,'And they dwelt from Havilah unto Shur, that is before Egypt, as thou goest toward Assyria: and he died in the presence of all his brethren.');
+INSERT INTO t1(docid,words) VALUES(1025019,'And these are the generations of Isaac, Abraham''s son: Abraham begat Isaac:');
+INSERT INTO t1(docid,words) VALUES(1025020,'And Isaac was forty years old when he took Rebekah to wife, the daughter of Bethuel the Syrian of Padanaram, the sister to Laban the Syrian.');
+INSERT INTO t1(docid,words) VALUES(1025021,'And Isaac intreated the LORD for his wife, because she was barren: and the LORD was intreated of him, and Rebekah his wife conceived.');
+INSERT INTO t1(docid,words) VALUES(1025022,'And the children struggled together within her; and she said, If it be so, why am I thus? And she went to enquire of the LORD.');
+INSERT INTO t1(docid,words) VALUES(1025023,'And the LORD said unto her, Two nations are in thy womb, and two manner of people shall be separated from thy bowels; and the one people shall be stronger than the other people; and the elder shall serve the younger.');
+INSERT INTO t1(docid,words) VALUES(1025024,'And when her days to be delivered were fulfilled, behold, there were twins in her womb.');
+INSERT INTO t1(docid,words) VALUES(1025025,'And the first came out red, all over like an hairy garment; and they called his name Esau.');
+INSERT INTO t1(docid,words) VALUES(1025026,'And after that came his brother out, and his hand took hold on Esau''s heel; and his name was called Jacob: and Isaac was threescore years old when she bare them.');
+INSERT INTO t1(docid,words) VALUES(1025027,'And the boys grew: and Esau was a cunning hunter, a man of the field; and Jacob was a plain man, dwelling in tents.');
+INSERT INTO t1(docid,words) VALUES(1025028,'And Isaac loved Esau, because he did eat of his venison: but Rebekah loved Jacob.');
+INSERT INTO t1(docid,words) VALUES(1025029,'And Jacob sod pottage: and Esau came from the field, and he was faint:');
+INSERT INTO t1(docid,words) VALUES(1025030,'And Esau said to Jacob, Feed me, I pray thee, with that same red pottage; for I am faint: therefore was his name called Edom.');
+INSERT INTO t1(docid,words) VALUES(1025031,'And Jacob said, Sell me this day thy birthright.');
+INSERT INTO t1(docid,words) VALUES(1025032,'And Esau said, Behold, I am at the point to die: and what profit shall this birthright do to me?');
+INSERT INTO t1(docid,words) VALUES(1025033,'And Jacob said, Swear to me this day; and he sware unto him: and he sold his birthright unto Jacob.');
+INSERT INTO t1(docid,words) VALUES(1025034,'Then Jacob gave Esau bread and pottage of lentiles; and he did eat and drink, and rose up, and went his way: thus Esau despised his birthright.');
+INSERT INTO t1(docid,words) VALUES(1026001,'And there was a famine in the land, beside the first famine that was in the days of Abraham. And Isaac went unto Abimelech king of the Philistines unto Gerar.');
+INSERT INTO t1(docid,words) VALUES(1026002,'And the LORD appeared unto him, and said, Go not down into Egypt; dwell in the land which I shall tell thee of:');
+INSERT INTO t1(docid,words) VALUES(1026003,'Sojourn in this land, and I will be with thee, and will bless thee; for unto thee, and unto thy seed, I will give all these countries, and I will perform the oath which I sware unto Abraham thy father;');
+INSERT INTO t1(docid,words) VALUES(1026004,'And I will make thy seed to multiply as the stars of heaven, and will give unto thy seed all these countries; and in thy seed shall all the nations of the earth be blessed;');
+INSERT INTO t1(docid,words) VALUES(1026005,'Because that Abraham obeyed my voice, and kept my charge, my commandments, my statutes, and my laws.');
+INSERT INTO t1(docid,words) VALUES(1026006,'And Isaac dwelt in Gerar:');
+INSERT INTO t1(docid,words) VALUES(1026007,'And the men of the place asked him of his wife; and he said, She is my sister: for he feared to say, She is my wife; lest, said he, the men of the place should kill me for Rebekah; because she was fair to look upon.');
+INSERT INTO t1(docid,words) VALUES(1026008,'And it came to pass, when he had been there a long time, that Abimelech king of the Philistines looked out at a window, and saw, and, behold, Isaac was sporting with Rebekah his wife.');
+INSERT INTO t1(docid,words) VALUES(1026009,'And Abimelech called Isaac, and said, Behold, of a surety she is thy wife; and how saidst thou, She is my sister? And Isaac said unto him, Because I said, Lest I die for her.');
+INSERT INTO t1(docid,words) VALUES(1026010,'And Abimelech said, What is this thou hast done unto us? one of the people might lightly have lien with thy wife, and thou shouldest have brought guiltiness upon us.');
+INSERT INTO t1(docid,words) VALUES(1026011,'And Abimelech charged all his people, saying, He that toucheth this man or his wife shall surely be put to death.');
+INSERT INTO t1(docid,words) VALUES(1026012,'Then Isaac sowed in that land, and received in the same year an hundredfold: and the LORD blessed him.');
+INSERT INTO t1(docid,words) VALUES(1026013,'And the man waxed great, and went forward, and grew until he became very great:');
+INSERT INTO t1(docid,words) VALUES(1026014,'For he had possession of flocks, and possession of herds, and great store of servants: and the Philistines envied him.');
+INSERT INTO t1(docid,words) VALUES(1026015,'For all the wells which his father''s servants had digged in the days of Abraham his father, the Philistines had stopped them, and filled them with earth.');
+INSERT INTO t1(docid,words) VALUES(1026016,'And Abimelech said unto Isaac, Go from us; for thou art much mightier than we.');
+INSERT INTO t1(docid,words) VALUES(1026017,'And Isaac departed thence, and pitched his tent in the valley of Gerar, and dwelt there.');
+INSERT INTO t1(docid,words) VALUES(1026018,'And Isaac digged again the wells of water, which they had digged in the days of Abraham his father; for the Philistines had stopped them after the death of Abraham: and he called their names after the names by which his father had called them.');
+INSERT INTO t1(docid,words) VALUES(1026019,'And Isaac''s servants digged in the valley, and found there a well of springing water.');
+INSERT INTO t1(docid,words) VALUES(1026020,'And the herdmen of Gerar did strive with Isaac''s herdmen, saying, The water is ours: and he called the name of the well Esek; because they strove with him.');
+INSERT INTO t1(docid,words) VALUES(1026021,'And they digged another well, and strove for that also: and he called the name of it Sitnah.');
+INSERT INTO t1(docid,words) VALUES(1026022,'And he removed from thence, and digged another well; and for that they strove not: and he called the name of it Rehoboth; and he said, For now the LORD hath made room for us, and we shall be fruitful in the land.');
+INSERT INTO t1(docid,words) VALUES(1026023,'And he went up from thence to Beersheba.');
+INSERT INTO t1(docid,words) VALUES(1026024,'And the LORD appeared unto him the same night, and said, I am the God of Abraham thy father: fear not, for I am with thee, and will bless thee, and multiply thy seed for my servant Abraham''s sake.');
+INSERT INTO t1(docid,words) VALUES(1026025,'And he builded an altar there, and called upon the name of the LORD, and pitched his tent there: and there Isaac''s servants digged a well.');
+INSERT INTO t1(docid,words) VALUES(1026026,'Then Abimelech went to him from Gerar, and Ahuzzath one of his friends, and Phichol the chief captain of his army.');
+INSERT INTO t1(docid,words) VALUES(1026027,'And Isaac said unto them, Wherefore come ye to me, seeing ye hate me, and have sent me away from you?');
+INSERT INTO t1(docid,words) VALUES(1026028,'And they said, We saw certainly that the LORD was with thee: and we said, Let there be now an oath betwixt us, even betwixt us and thee, and let us make a covenant with thee;');
+INSERT INTO t1(docid,words) VALUES(1026029,'That thou wilt do us no hurt, as we have not touched thee, and as we have done unto thee nothing but good, and have sent thee away in peace: thou art now the blessed of the LORD.');
+INSERT INTO t1(docid,words) VALUES(1026030,'And he made them a feast, and they did eat and drink.');
+INSERT INTO t1(docid,words) VALUES(1026031,'And they rose up betimes in the morning, and sware one to another: and Isaac sent them away, and they departed from him in peace.');
+INSERT INTO t1(docid,words) VALUES(1026032,'And it came to pass the same day, that Isaac''s servants came, and told him concerning the well which they had digged, and said unto him, We have found water.');
+INSERT INTO t1(docid,words) VALUES(1026033,'And he called it Shebah: therefore the name of the city is Beersheba unto this day.');
+INSERT INTO t1(docid,words) VALUES(1026034,'And Esau was forty years old when he took to wife Judith the daughter of Beeri the Hittite, and Bashemath the daughter of Elon the Hittite:');
+INSERT INTO t1(docid,words) VALUES(1026035,'Which were a grief of mind unto Isaac and to Rebekah.');
+INSERT INTO t1(docid,words) VALUES(1027001,'And it came to pass, that when Isaac was old, and his eyes were dim, so that he could not see, he called Esau his eldest son, and said unto him, My son: and he said unto him, Behold, here am I.');
+INSERT INTO t1(docid,words) VALUES(1027002,'And he said, Behold now, I am old, I know not the day of my death:');
+INSERT INTO t1(docid,words) VALUES(1027003,'Now therefore take, I pray thee, thy weapons, thy quiver and thy bow, and go out to the field, and take me some venison;');
+INSERT INTO t1(docid,words) VALUES(1027004,'And make me savoury meat, such as I love, and bring it to me, that I may eat; that my soul may bless thee before I die.');
+INSERT INTO t1(docid,words) VALUES(1027005,'And Rebekah heard when Isaac spake to Esau his son. And Esau went to the field to hunt for venison, and to bring it.');
+INSERT INTO t1(docid,words) VALUES(1027006,'And Rebekah spake unto Jacob her son, saying, Behold, I heard thy father speak unto Esau thy brother, saying,');
+INSERT INTO t1(docid,words) VALUES(1027007,'Bring me venison, and make me savoury meat, that I may eat, and bless thee before the LORD before my death.');
+INSERT INTO t1(docid,words) VALUES(1027008,'Now therefore, my son, obey my voice according to that which I command thee.');
+INSERT INTO t1(docid,words) VALUES(1027009,'Go now to the flock, and fetch me from thence two good kids of the goats; and I will make them savoury meat for thy father, such as he loveth:');
+INSERT INTO t1(docid,words) VALUES(1027010,'And thou shalt bring it to thy father, that he may eat, and that he may bless thee before his death.');
+INSERT INTO t1(docid,words) VALUES(1027011,'And Jacob said to Rebekah his mother, Behold, Esau my brother is a hairy man, and I am a smooth man:');
+INSERT INTO t1(docid,words) VALUES(1027012,'My father peradventure will feel me, and I shall seem to him as a deceiver; and I shall bring a curse upon me, and not a blessing.');
+INSERT INTO t1(docid,words) VALUES(1027013,'And his mother said unto him, Upon me be thy curse, my son: only obey my voice, and go fetch me them.');
+INSERT INTO t1(docid,words) VALUES(1027014,'And he went, and fetched, and brought them to his mother: and his mother made savoury meat, such as his father loved.');
+INSERT INTO t1(docid,words) VALUES(1027015,'And Rebekah took goodly raiment of her eldest son Esau, which were with her in the house, and put them upon Jacob her younger son:');
+INSERT INTO t1(docid,words) VALUES(1027016,'And she put the skins of the kids of the goats upon his hands, and upon the smooth of his neck:');
+INSERT INTO t1(docid,words) VALUES(1027017,'And she gave the savoury meat and the bread, which she had prepared, into the hand of her son Jacob.');
+INSERT INTO t1(docid,words) VALUES(1027018,'And he came unto his father, and said, My father: and he said, Here am I; who art thou, my son?');
+INSERT INTO t1(docid,words) VALUES(1027019,'And Jacob said unto his father, I am Esau thy first born; I have done according as thou badest me: arise, I pray thee, sit and eat of my venison, that thy soul may bless me.');
+INSERT INTO t1(docid,words) VALUES(1027020,'And Isaac said unto his son, How is it that thou hast found it so quickly, my son? And he said, Because the LORD thy God brought it to me.');
+INSERT INTO t1(docid,words) VALUES(1027021,'And Isaac said unto Jacob, Come near, I pray thee, that I may feel thee, my son, whether thou be my very son Esau or not.');
+INSERT INTO t1(docid,words) VALUES(1027022,'And Jacob went near unto Isaac his father; and he felt him, and said, The voice is Jacob''s voice, but the hands are the hands of Esau.');
+INSERT INTO t1(docid,words) VALUES(1027023,'And he discerned him not, because his hands were hairy, as his brother Esau''s hands: so he blessed him.');
+INSERT INTO t1(docid,words) VALUES(1027024,'And he said, Art thou my very son Esau? And he said, I am.');
+INSERT INTO t1(docid,words) VALUES(1027025,'And he said, Bring it near to me, and I will eat of my son''s venison, that my soul may bless thee. And he brought it near to him, and he did eat: and he brought him wine and he drank.');
+INSERT INTO t1(docid,words) VALUES(1027026,'And his father Isaac said unto him, Come near now, and kiss me, my son.');
+INSERT INTO t1(docid,words) VALUES(1027027,'And he came near, and kissed him: and he smelled the smell of his raiment, and blessed him, and said, See, the smell of my son is as the smell of a field which the LORD hath blessed:');
+INSERT INTO t1(docid,words) VALUES(1027028,'Therefore God give thee of the dew of heaven, and the fatness of the earth, and plenty of corn and wine:');
+INSERT INTO t1(docid,words) VALUES(1027029,'Let people serve thee, and nations bow down to thee: be lord over thy brethren, and let thy mother''s sons bow down to thee: cursed be every one that curseth thee, and blessed be he that blesseth thee.');
+INSERT INTO t1(docid,words) VALUES(1027030,'And it came to pass, as soon as Isaac had made an end of blessing Jacob, and Jacob was yet scarce gone out from the presence of Isaac his father, that Esau his brother came in from his hunting.');
+INSERT INTO t1(docid,words) VALUES(1027031,'And he also had made savoury meat, and brought it unto his father, and said unto his father, Let my father arise, and eat of his son''s venison, that thy soul may bless me.');
+INSERT INTO t1(docid,words) VALUES(1027032,'And Isaac his father said unto him, Who art thou? And he said, I am thy son, thy firstborn Esau.');
+INSERT INTO t1(docid,words) VALUES(1027033,'And Isaac trembled very exceedingly, and said, Who? where is he that hath taken venison, and brought it me, and I have eaten of all before thou camest, and have blessed him? yea, and he shall be blessed.');
+INSERT INTO t1(docid,words) VALUES(1027034,'And when Esau heard the words of his father, he cried with a great and exceeding bitter cry, and said unto his father, Bless me, even me also, O my father.');
+INSERT INTO t1(docid,words) VALUES(1027035,'And he said, Thy brother came with subtilty, and hath taken away thy blessing.');
+INSERT INTO t1(docid,words) VALUES(1027036,'And he said, Is not he rightly named Jacob? for he hath supplanted me these two times: he took away my birthright; and, behold, now he hath taken away my blessing. And he said, Hast thou not reserved a blessing for me?');
+INSERT INTO t1(docid,words) VALUES(1027037,'And Isaac answered and said unto Esau, Behold, I have made him thy lord, and all his brethren have I given to him for servants; and with corn and wine have I sustained him: and what shall I do now unto thee, my son?');
+INSERT INTO t1(docid,words) VALUES(1027038,'And Esau said unto his father, Hast thou but one blessing, my father? bless me, even me also, O my father. And Esau lifted up his voice, and wept.');
+INSERT INTO t1(docid,words) VALUES(1027039,'And Isaac his father answered and said unto him, Behold, thy dwelling shall be the fatness of the earth, and of the dew of heaven from above;');
+INSERT INTO t1(docid,words) VALUES(1027040,'And by thy sword shalt thou live, and shalt serve thy brother; and it shall come to pass when thou shalt have the dominion, that thou shalt break his yoke from off thy neck.');
+INSERT INTO t1(docid,words) VALUES(1027041,'And Esau hated Jacob because of the blessing wherewith his father blessed him: and Esau said in his heart, The days of mourning for my father are at hand; then will I slay my brother Jacob.');
+INSERT INTO t1(docid,words) VALUES(1027042,'And these words of Esau her elder son were told to Rebekah: and she sent and called Jacob her younger son, and said unto him, Behold, thy brother Esau, as touching thee, doth comfort himself, purposing to kill thee.');
+INSERT INTO t1(docid,words) VALUES(1027043,'Now therefore, my son, obey my voice; arise, flee thou to Laban my brother to Haran;');
+INSERT INTO t1(docid,words) VALUES(1027044,'And tarry with him a few days, until thy brother''s fury turn away;');
+INSERT INTO t1(docid,words) VALUES(1027045,'Until thy brother''s anger turn away from thee, and he forget that which thou hast done to him: then I will send, and fetch thee from thence: why should I be deprived also of you both in one day?');
+INSERT INTO t1(docid,words) VALUES(1027046,'And Rebekah said to Isaac, I am weary of my life because of the daughters of Heth: if Jacob take a wife of the daughters of Heth, such as these which are of the daughters of the land, what good shall my life do me?');
+INSERT INTO t1(docid,words) VALUES(1028001,'And Isaac called Jacob, and blessed him, and charged him, and said unto him, Thou shalt not take a wife of the daughters of Canaan.');
+INSERT INTO t1(docid,words) VALUES(1028002,'Arise, go to Padanaram, to the house of Bethuel thy mother''s father; and take thee a wife from thence of the daughers of Laban thy mother''s brother.');
+INSERT INTO t1(docid,words) VALUES(1028003,'And God Almighty bless thee, and make thee fruitful, and multiply thee, that thou mayest be a multitude of people;');
+INSERT INTO t1(docid,words) VALUES(1028004,'And give thee the blessing of Abraham, to thee, and to thy seed with thee; that thou mayest inherit the land wherein thou art a stranger, which God gave unto Abraham.');
+INSERT INTO t1(docid,words) VALUES(1028005,'And Isaac sent away Jacob: and he went to Padanaram unto Laban, son of Bethuel the Syrian, the brother of Rebekah, Jacob''s and Esau''s mother.');
+INSERT INTO t1(docid,words) VALUES(1028006,'When Esau saw that Isaac had blessed Jacob, and sent him away to Padanaram, to take him a wife from thence; and that as he blessed him he gave him a charge, saying, Thou shalt not take a wife of the daughers of Canaan;');
+INSERT INTO t1(docid,words) VALUES(1028007,'And that Jacob obeyed his father and his mother, and was gone to Padanaram;');
+INSERT INTO t1(docid,words) VALUES(1028008,'And Esau seeing that the daughters of Canaan pleased not Isaac his father;');
+INSERT INTO t1(docid,words) VALUES(1028009,'Then went Esau unto Ishmael, and took unto the wives which he had Mahalath the daughter of Ishmael Abraham''s son, the sister of Nebajoth, to be his wife.');
+INSERT INTO t1(docid,words) VALUES(1028010,'And Jacob went out from Beersheba, and went toward Haran.');
+INSERT INTO t1(docid,words) VALUES(1028011,'And he lighted upon a certain place, and tarried there all night, because the sun was set; and he took of the stones of that place, and put them for his pillows, and lay down in that place to sleep.');
+INSERT INTO t1(docid,words) VALUES(1028012,'And he dreamed, and behold a ladder set up on the earth, and the top of it reached to heaven: and behold the angels of God ascending and descending on it.');
+INSERT INTO t1(docid,words) VALUES(1028013,'And, behold, the LORD stood above it, and said, I am the LORD God of Abraham thy father, and the God of Isaac: the land whereon thou liest, to thee will I give it, and to thy seed;');
+INSERT INTO t1(docid,words) VALUES(1028014,'And thy seed shall be as the dust of the earth, and thou shalt spread abroad to the west, and to the east, and to the north, and to the south: and in thee and in thy seed shall all the families of the earth be blessed.');
+INSERT INTO t1(docid,words) VALUES(1028015,'And, behold, I am with thee, and will keep thee in all places whither thou goest, and will bring thee again into this land; for I will not leave thee, until I have done that which I have spoken to thee of.');
+INSERT INTO t1(docid,words) VALUES(1028016,'And Jacob awaked out of his sleep, and he said, Surely the LORD is in this place; and I knew it not.');
+INSERT INTO t1(docid,words) VALUES(1028017,'And he was afraid, and said, How dreadful is this place! this is none other but the house of God, and this is the gate of heaven.');
+INSERT INTO t1(docid,words) VALUES(1028018,'And Jacob rose up early in the morning, and took the stone that he had put for his pillows, and set it up for a pillar, and poured oil upon the top of it.');
+INSERT INTO t1(docid,words) VALUES(1028019,'And he called the name of that place Bethel: but the name of that city was called Luz at the first.');
+INSERT INTO t1(docid,words) VALUES(1028020,'And Jacob vowed a vow, saying, If God will be with me, and will keep me in this way that I go, and will give me bread to eat, and raiment to put on,');
+INSERT INTO t1(docid,words) VALUES(1028021,'So that I come again to my father''s house in peace; then shall the LORD be my God:');
+INSERT INTO t1(docid,words) VALUES(1028022,'And this stone, which I have set for a pillar, shall be God''s house: and of all that thou shalt give me I will surely give the tenth unto thee.');
+INSERT INTO t1(docid,words) VALUES(1029001,'Then Jacob went on his journey, and came into the land of the people of the east.');
+INSERT INTO t1(docid,words) VALUES(1029002,'And he looked, and behold a well in the field, and, lo, there were three flocks of sheep lying by it; for out of that well they watered the flocks: and a great stone was upon the well''s mouth.');
+INSERT INTO t1(docid,words) VALUES(1029003,'And thither were all the flocks gathered: and they rolled the stone from the well''s mouth, and watered the sheep, and put the stone again upon the well''s mouth in his place.');
+INSERT INTO t1(docid,words) VALUES(1029004,'And Jacob said unto them, My brethren, whence be ye? And they said, Of Haran are we.');
+INSERT INTO t1(docid,words) VALUES(1029005,'And he said unto them, Know ye Laban the son of Nahor? And they said, We know him.');
+INSERT INTO t1(docid,words) VALUES(1029006,'And he said unto them, Is he well? And they said, He is well: and, behold, Rachel his daughter cometh with the sheep.');
+INSERT INTO t1(docid,words) VALUES(1029007,'And he said, Lo, it is yet high day, neither is it time that the cattle should be gathered together: water ye the sheep, and go and feed them.');
+INSERT INTO t1(docid,words) VALUES(1029008,'And they said, We cannot, until all the flocks be gathered together, and till they roll the stone from the well''s mouth; then we water the sheep.');
+INSERT INTO t1(docid,words) VALUES(1029009,'And while he yet spake with them, Rachel came with her father''s sheep; for she kept them.');
+INSERT INTO t1(docid,words) VALUES(1029010,'And it came to pass, when Jacob saw Rachel the daughter of Laban his mother''s brother, and the sheep of Laban his mother''s brother, that Jacob went near, and rolled the stone from the well''s mouth, and watered the flock of Laban his mother''s brother.');
+INSERT INTO t1(docid,words) VALUES(1029011,'And Jacob kissed Rachel, and lifted up his voice, and wept.');
+INSERT INTO t1(docid,words) VALUES(1029012,'And Jacob told Rachel that he was her father''s brother, and that he was Rebekah''s son: and she ran and told her father.');
+INSERT INTO t1(docid,words) VALUES(1029013,'And it came to pass, when Laban heard the tidings of Jacob his sister''s son, that he ran to meet him, and embraced him, and kissed him, and brought him to his house. And he told Laban all these things.');
+INSERT INTO t1(docid,words) VALUES(1029014,'And Laban said to him, Surely thou art my bone and my flesh. And he abode with him the space of a month.');
+INSERT INTO t1(docid,words) VALUES(1029015,'And Laban said unto Jacob, Because thou art my brother, shouldest thou therefore serve me for nought? tell me, what shall thy wages be?');
+INSERT INTO t1(docid,words) VALUES(1029016,'And Laban had two daughters: the name of the elder was Leah, and the name of the younger was Rachel.');
+INSERT INTO t1(docid,words) VALUES(1029017,'Leah was tender eyed; but Rachel was beautiful and well favoured.');
+INSERT INTO t1(docid,words) VALUES(1029018,'And Jacob loved Rachel; and said, I will serve thee seven years for Rachel thy younger daughter.');
+INSERT INTO t1(docid,words) VALUES(1029019,'And Laban said, It is better that I give her to thee, than that I should give her to another man: abide with me.');
+INSERT INTO t1(docid,words) VALUES(1029020,'And Jacob served seven years for Rachel; and they seemed unto him but a few days, for the love he had to her.');
+INSERT INTO t1(docid,words) VALUES(1029021,'And Jacob said unto Laban, Give me my wife, for my days are fulfilled, that I may go in unto her.');
+INSERT INTO t1(docid,words) VALUES(1029022,'And Laban gathered together all the men of the place, and made a feast.');
+INSERT INTO t1(docid,words) VALUES(1029023,'And it came to pass in the evening, that he took Leah his daughter, and brought her to him; and he went in unto her.');
+INSERT INTO t1(docid,words) VALUES(1029024,'And Laban gave unto his daughter Leah Zilpah his maid for an handmaid.');
+INSERT INTO t1(docid,words) VALUES(1029025,'And it came to pass, that in the morning, behold, it was Leah: and he said to Laban, What is this thou hast done unto me? did not I serve with thee for Rachel? wherefore then hast thou beguiled me?');
+INSERT INTO t1(docid,words) VALUES(1029026,'And Laban said, It must not be so done in our country, to give the younger before the firstborn.');
+INSERT INTO t1(docid,words) VALUES(1029027,'Fulfil her week, and we will give thee this also for the service which thou shalt serve with me yet seven other years.');
+INSERT INTO t1(docid,words) VALUES(1029028,'And Jacob did so, and fulfilled her week: and he gave him Rachel his daughter to wife also.');
+INSERT INTO t1(docid,words) VALUES(1029029,'And Laban gave to Rachel his daughter Bilhah his handmaid to be her maid.');
+INSERT INTO t1(docid,words) VALUES(1029030,'And he went in also unto Rachel, and he loved also Rachel more than Leah, and served with him yet seven other years.');
+INSERT INTO t1(docid,words) VALUES(1029031,'And when the LORD saw that Leah was hated, he opened her womb: but Rachel was barren.');
+INSERT INTO t1(docid,words) VALUES(1029032,'And Leah conceived, and bare a son, and she called his name Reuben: for she said, Surely the LORD hath looked upon my affliction; now therefore my husband will love me.');
+INSERT INTO t1(docid,words) VALUES(1029033,'And she conceived again, and bare a son; and said, Because the LORD hath heard I was hated, he hath therefore given me this son also: and she called his name Simeon.');
+INSERT INTO t1(docid,words) VALUES(1029034,'And she conceived again, and bare a son; and said, Now this time will my husband be joined unto me, because I have born him three sons: therefore was his name called Levi.');
+INSERT INTO t1(docid,words) VALUES(1029035,'And she conceived again, and bare a son: and she said, Now will I praise the LORD: therefore she called his name Judah; and left bearing.');
+INSERT INTO t1(docid,words) VALUES(1030001,'And when Rachel saw that she bare Jacob no children, Rachel envied her sister; and said unto Jacob, Give me children, or else I die.');
+INSERT INTO t1(docid,words) VALUES(1030002,'And Jacob''s anger was kindled against Rachel: and he said, Am I in God''s stead, who hath withheld from thee the fruit of the womb?');
+INSERT INTO t1(docid,words) VALUES(1030003,'And she said, Behold my maid Bilhah, go in unto her; and she shall bear upon my knees, that I may also have children by her.');
+INSERT INTO t1(docid,words) VALUES(1030004,'And she gave him Bilhah her handmaid to wife: and Jacob went in unto her.');
+INSERT INTO t1(docid,words) VALUES(1030005,'And Bilhah conceived, and bare Jacob a son.');
+INSERT INTO t1(docid,words) VALUES(1030006,'And Rachel said, God hath judged me, and hath also heard my voice, and hath given me a son: therefore called she his name Dan.');
+INSERT INTO t1(docid,words) VALUES(1030007,'And Bilhah Rachel''s maid conceived again, and bare Jacob a second son.');
+INSERT INTO t1(docid,words) VALUES(1030008,'And Rachel said, With great wrestlings have I wrestled with my sister, and I have prevailed: and she called his name Naphtali.');
+INSERT INTO t1(docid,words) VALUES(1030009,'When Leah saw that she had left bearing, she took Zilpah her maid, and gave her Jacob to wife.');
+INSERT INTO t1(docid,words) VALUES(1030010,'And Zilpah Leah''s maid bare Jacob a son.');
+INSERT INTO t1(docid,words) VALUES(1030011,'And Leah said, A troop cometh: and she called his name Gad.');
+INSERT INTO t1(docid,words) VALUES(1030012,'And Zilpah Leah''s maid bare Jacob a second son.');
+INSERT INTO t1(docid,words) VALUES(1030013,'And Leah said, Happy am I, for the daughters will call me blessed: and she called his name Asher.');
+INSERT INTO t1(docid,words) VALUES(1030014,'And Reuben went in the days of wheat harvest, and found mandrakes in the field, and brought them unto his mother Leah. Then Rachel said to Leah, Give me, I pray thee, of thy son''s mandrakes.');
+INSERT INTO t1(docid,words) VALUES(1030015,'And she said unto her, Is it a small matter that thou hast taken my husband? and wouldest thou take away my son''s mandrakes also? And Rachel said, Therefore he shall lie with thee to night for thy son''s mandrakes.');
+INSERT INTO t1(docid,words) VALUES(1030016,'And Jacob came out of the field in the evening, and Leah went out to meet him, and said, Thou must come in unto me; for surely I have hired thee with my son''s mandrakes. And he lay with her that night.');
+INSERT INTO t1(docid,words) VALUES(1030017,'And God hearkened unto Leah, and she conceived, and bare Jacob the fifth son.');
+INSERT INTO t1(docid,words) VALUES(1030018,'And Leah said, God hath given me my hire, because I have given my maiden to my husband: and she called his name Issachar.');
+INSERT INTO t1(docid,words) VALUES(1030019,'And Leah conceived again, and bare Jacob the sixth son.');
+INSERT INTO t1(docid,words) VALUES(1030020,'And Leah said, God hath endued me with a good dowry; now will my husband dwell with me, because I have born him six sons: and she called his name Zebulun.');
+INSERT INTO t1(docid,words) VALUES(1030021,'And afterwards she bare a daughter, and called her name Dinah.');
+INSERT INTO t1(docid,words) VALUES(1030022,'And God remembered Rachel, and God hearkened to her, and opened her womb.');
+INSERT INTO t1(docid,words) VALUES(1030023,'And she conceived, and bare a son; and said, God hath taken away my reproach:');
+INSERT INTO t1(docid,words) VALUES(1030024,'And she called his name Joseph; and said, The LORD shall add to me another son.');
+INSERT INTO t1(docid,words) VALUES(1030025,'And it came to pass, when Rachel had born Joseph, that Jacob said unto Laban, Send me away, that I may go unto mine own place, and to my country.');
+INSERT INTO t1(docid,words) VALUES(1030026,'Give me my wives and my children, for whom I have served thee, and let me go: for thou knowest my service which I have done thee.');
+INSERT INTO t1(docid,words) VALUES(1030027,'And Laban said unto him, I pray thee, if I have found favour in thine eyes, tarry: for I have learned by experience that the LORD hath blessed me for thy sake.');
+INSERT INTO t1(docid,words) VALUES(1030028,'And he said, Appoint me thy wages, and I will give it.');
+INSERT INTO t1(docid,words) VALUES(1030029,'And he said unto him, Thou knowest how I have served thee, and how thy cattle was with me.');
+INSERT INTO t1(docid,words) VALUES(1030030,'For it was little which thou hadst before I came, and it is now increased unto a multitude; and the LORD hath blessed thee since my coming: and now when shall I provide for mine own house also?');
+INSERT INTO t1(docid,words) VALUES(1030031,'And he said, What shall I give thee? And Jacob said, Thou shalt not give me any thing: if thou wilt do this thing for me, I will again feed and keep thy flock.');
+INSERT INTO t1(docid,words) VALUES(1030032,'I will pass through all thy flock to day, removing from thence all the speckled and spotted cattle, and all the brown cattle among the sheep, and the spotted and speckled among the goats: and of such shall be my hire.');
+INSERT INTO t1(docid,words) VALUES(1030033,'So shall my righteousness answer for me in time to come, when it shall come for my hire before thy face: every one that is not speckled and spotted among the goats, and brown among the sheep, that shall be counted stolen with me.');
+INSERT INTO t1(docid,words) VALUES(1030034,'And Laban said, Behold, I would it might be according to thy word.');
+INSERT INTO t1(docid,words) VALUES(1030035,'And he removed that day the he goats that were ringstraked and spotted, and all the she goats that were speckled and spotted, and every one that had some white in it, and all the brown among the sheep, and gave them into the hand of his sons.');
+INSERT INTO t1(docid,words) VALUES(1030036,'And he set three days'' journey betwixt himself and Jacob: and Jacob fed the rest of Laban''s flocks.');
+INSERT INTO t1(docid,words) VALUES(1030037,'And Jacob took him rods of green poplar, and of the hazel and chesnut tree; and pilled white strakes in them, and made the white appear which was in the rods.');
+INSERT INTO t1(docid,words) VALUES(1030038,'And he set the rods which he had pilled before the flocks in the gutters in the watering troughs when the flocks came to drink, that they should conceive when they came to drink.');
+INSERT INTO t1(docid,words) VALUES(1030039,'And the flocks conceived before the rods, and brought forth cattle ringstraked, speckled, and spotted.');
+INSERT INTO t1(docid,words) VALUES(1030040,'And Jacob did separate the lambs, and set the faces of the flocks toward the ringstraked, and all the brown in the flock of Laban; and he put his own flocks by themselves, and put them not unto Laban''s cattle.');
+INSERT INTO t1(docid,words) VALUES(1030041,'And it came to pass, whensoever the stronger cattle did conceive, that Jacob laid the rods before the eyes of the cattle in the gutters, that they might conceive among the rods.');
+INSERT INTO t1(docid,words) VALUES(1030042,'But when the cattle were feeble, he put them not in: so the feebler were Laban''s, and the stronger Jacob''s.');
+INSERT INTO t1(docid,words) VALUES(1030043,'And the man increased exceedingly, and had much cattle, and maidservants, and menservants, and camels, and asses.');
+INSERT INTO t1(docid,words) VALUES(1031001,'And he heard the words of Laban''s sons, saying, Jacob hath taken away all that was our father''s; and of that which was our father''s hath he gotten all this glory.');
+INSERT INTO t1(docid,words) VALUES(1031002,'And Jacob beheld the countenance of Laban, and, behold, it was not toward him as before.');
+INSERT INTO t1(docid,words) VALUES(1031003,'And the LORD said unto Jacob, Return unto the land of thy fathers, and to thy kindred; and I will be with thee.');
+INSERT INTO t1(docid,words) VALUES(1031004,'And Jacob sent and called Rachel and Leah to the field unto his flock,');
+INSERT INTO t1(docid,words) VALUES(1031005,'And said unto them, I see your father''s countenance, that it is not toward me as before; but the God of my father hath been with me.');
+INSERT INTO t1(docid,words) VALUES(1031006,'And ye know that with all my power I have served your father.');
+INSERT INTO t1(docid,words) VALUES(1031007,'And your father hath deceived me, and changed my wages ten times; but God suffered him not to hurt me.');
+INSERT INTO t1(docid,words) VALUES(1031008,'If he said thus, The speckled shall be thy wages; then all the cattle bare speckled: and if he said thus, The ringstraked shall be thy hire; then bare all the cattle ringstraked.');
+INSERT INTO t1(docid,words) VALUES(1031009,'Thus God hath taken away the cattle of your father, and given them to me.');
+INSERT INTO t1(docid,words) VALUES(1031010,'And it came to pass at the time that the cattle conceived, that I lifted up mine eyes, and saw in a dream, and, behold, the rams which leaped upon the cattle were ringstraked, speckled, and grisled.');
+INSERT INTO t1(docid,words) VALUES(1031011,'And the angel of God spake unto me in a dream, saying, Jacob: And I said, Here am I.');
+INSERT INTO t1(docid,words) VALUES(1031012,'And he said, Lift up now thine eyes, and see, all the rams which leap upon the cattle are ringstraked, speckled, and grisled: for I have seen all that Laban doeth unto thee.');
+INSERT INTO t1(docid,words) VALUES(1031013,'I am the God of Bethel, where thou anointedst the pillar, and where thou vowedst a vow unto me: now arise, get thee out from this land, and return unto the land of thy kindred.');
+INSERT INTO t1(docid,words) VALUES(1031014,'And Rachel and Leah answered and said unto him, Is there yet any portion or inheritance for us in our father''s house?');
+INSERT INTO t1(docid,words) VALUES(1031015,'Are we not counted of him strangers? for he hath sold us, and hath quite devoured also our money.');
+INSERT INTO t1(docid,words) VALUES(1031016,'For all the riches which God hath taken from our father, that is ours, and our children''s: now then, whatsoever God hath said unto thee, do.');
+INSERT INTO t1(docid,words) VALUES(1031017,'Then Jacob rose up, and set his sons and his wives upon camels;');
+INSERT INTO t1(docid,words) VALUES(1031018,'And he carried away all his cattle, and all his goods which he had gotten, the cattle of his getting, which he had gotten in Padanaram, for to go to Isaac his father in the land of Canaan.');
+INSERT INTO t1(docid,words) VALUES(1031019,'And Laban went to shear his sheep: and Rachel had stolen the images that were her father''s.');
+INSERT INTO t1(docid,words) VALUES(1031020,'And Jacob stole away unawares to Laban the Syrian, in that he told him not that he fled.');
+INSERT INTO t1(docid,words) VALUES(1031021,'So he fled with all that he had; and he rose up, and passed over the river, and set his face toward the mount Gilead.');
+INSERT INTO t1(docid,words) VALUES(1031022,'And it was told Laban on the third day that Jacob was fled.');
+INSERT INTO t1(docid,words) VALUES(1031023,'And he took his brethren with him, and pursued after him seven days'' journey; and they overtook him in the mount Gilead.');
+INSERT INTO t1(docid,words) VALUES(1031024,'And God came to Laban the Syrian in a dream by night, and said unto him, Take heed that thou speak not to Jacob either good or bad.');
+INSERT INTO t1(docid,words) VALUES(1031025,'Then Laban overtook Jacob. Now Jacob had pitched his tent in the mount: and Laban with his brethren pitched in the mount of Gilead.');
+INSERT INTO t1(docid,words) VALUES(1031026,'And Laban said to Jacob, What hast thou done, that thou hast stolen away unawares to me, and carried away my daughters, as captives taken with the sword?');
+INSERT INTO t1(docid,words) VALUES(1031027,'Wherefore didst thou flee away secretly, and steal away from me; and didst not tell me, that I might have sent thee away with mirth, and with songs, with tabret, and with harp?');
+INSERT INTO t1(docid,words) VALUES(1031028,'And hast not suffered me to kiss my sons and my daughters? thou hast now done foolishly in so doing.');
+INSERT INTO t1(docid,words) VALUES(1031029,'It is in the power of my hand to do you hurt: but the God of your father spake unto me yesternight, saying, Take thou heed that thou speak not to Jacob either good or bad.');
+INSERT INTO t1(docid,words) VALUES(1031030,'And now, though thou wouldest needs be gone, because thou sore longedst after thy father''s house, yet wherefore hast thou stolen my gods?');
+INSERT INTO t1(docid,words) VALUES(1031031,'And Jacob answered and said to Laban, Because I was afraid: for I said, Peradventure thou wouldest take by force thy daughters from me.');
+INSERT INTO t1(docid,words) VALUES(1031032,'With whomsoever thou findest thy gods, let him not live: before our brethren discern thou what is thine with me, and take it to thee. For Jacob knew not that Rachel had stolen them.');
+INSERT INTO t1(docid,words) VALUES(1031033,'And Laban went into Jacob''s tent, and into Leah''s tent, and into the two maidservants'' tents; but he found them not. Then went he out of Leah''s tent, and entered into Rachel''s tent.');
+INSERT INTO t1(docid,words) VALUES(1031034,'Now Rachel had taken the images, and put them in the camel''s furniture, and sat upon them. And Laban searched all the tent, but found them not.');
+INSERT INTO t1(docid,words) VALUES(1031035,'And she said to her father, Let it not displease my lord that I cannot rise up before thee; for the custom of women is upon me. And he searched but found not the images.');
+INSERT INTO t1(docid,words) VALUES(1031036,'And Jacob was wroth, and chode with Laban: and Jacob answered and said to Laban, What is my trespass? what is my sin, that thou hast so hotly pursued after me?');
+INSERT INTO t1(docid,words) VALUES(1031037,'Whereas thou hast searched all my stuff, what hast thou found of all thy household stuff? set it here before my brethren and thy brethren, that they may judge betwixt us both.');
+INSERT INTO t1(docid,words) VALUES(1031038,'This twenty years have I been with thee; thy ewes and thy she goats have not cast their young, and the rams of thy flock have I not eaten.');
+INSERT INTO t1(docid,words) VALUES(1031039,'That which was torn of beasts I brought not unto thee; I bare the loss of it; of my hand didst thou require it, whether stolen by day, or stolen by night.');
+INSERT INTO t1(docid,words) VALUES(1031040,'Thus I was; in the day the drought consumed me, and the frost by night; and my sleep departed from mine eyes.');
+INSERT INTO t1(docid,words) VALUES(1031041,'Thus have I been twenty years in thy house; I served thee fourteen years for thy two daughters, and six years for thy cattle: and thou hast changed my wages ten times.');
+INSERT INTO t1(docid,words) VALUES(1031042,'Except the God of my father, the God of Abraham, and the fear of Isaac, had been with me, surely thou hadst sent me away now empty. God hath seen mine affliction and the labour of my hands, and rebuked thee yesternight.');
+INSERT INTO t1(docid,words) VALUES(1031043,'And Laban answered and said unto Jacob, These daughters are my daughters, and these children are my children, and these cattle are my cattle, and all that thou seest is mine: and what can I do this day unto these my daughters, or unto their children which they have born?');
+INSERT INTO t1(docid,words) VALUES(1031044,'Now therefore come thou, let us make a covenant, I and thou; and let it be for a witness between me and thee.');
+INSERT INTO t1(docid,words) VALUES(1031045,'And Jacob took a stone, and set it up for a pillar.');
+INSERT INTO t1(docid,words) VALUES(1031046,'And Jacob said unto his brethren, Gather stones; and they took stones, and made an heap: and they did eat there upon the heap.');
+INSERT INTO t1(docid,words) VALUES(1031047,'And Laban called it Jegarsahadutha: but Jacob called it Galeed.');
+INSERT INTO t1(docid,words) VALUES(1031048,'And Laban said, This heap is a witness between me and thee this day. Therefore was the name of it called Galeed;');
+INSERT INTO t1(docid,words) VALUES(1031049,'And Mizpah; for he said, The LORD watch between me and thee, when we are absent one from another.');
+INSERT INTO t1(docid,words) VALUES(1031050,'If thou shalt afflict my daughters, or if thou shalt take other wives beside my daughters, no man is with us; see, God is witness betwixt me and thee.');
+INSERT INTO t1(docid,words) VALUES(1031051,'And Laban said to Jacob, Behold this heap, and behold this pillar, which I have cast betwixt me and thee:');
+INSERT INTO t1(docid,words) VALUES(1031052,'This heap be witness, and this pillar be witness, that I will not pass over this heap to thee, and that thou shalt not pass over this heap and this pillar unto me, for harm.');
+INSERT INTO t1(docid,words) VALUES(1031053,'The God of Abraham, and the God of Nahor, the God of their father, judge betwixt us. And Jacob sware by the fear of his father Isaac.');
+INSERT INTO t1(docid,words) VALUES(1031054,'Then Jacob offered sacrifice upon the mount, and called his brethren to eat bread: and they did eat bread, and tarried all night in the mount.');
+INSERT INTO t1(docid,words) VALUES(1031055,'And early in the morning Laban rose up, and kissed his sons and his daughters, and blessed them: and Laban departed, and returned unto his place.');
+INSERT INTO t1(docid,words) VALUES(1032001,'And Jacob went on his way, and the angels of God met him.');
+INSERT INTO t1(docid,words) VALUES(1032002,'And when Jacob saw them, he said, This is God''s host: and he called the name of that place Mahanaim.');
+INSERT INTO t1(docid,words) VALUES(1032003,'And Jacob sent messengers before him to Esau his brother unto the land of Seir, the country of Edom.');
+INSERT INTO t1(docid,words) VALUES(1032004,'And he commanded them, saying, Thus shall ye speak unto my lord Esau; Thy servant Jacob saith thus, I have sojourned with Laban, and stayed there until now:');
+INSERT INTO t1(docid,words) VALUES(1032005,'And I have oxen, and asses, flocks, and menservants, and womenservants: and I have sent to tell my lord, that I may find grace in thy sight.');
+INSERT INTO t1(docid,words) VALUES(1032006,'And the messengers returned to Jacob, saying, We came to thy brother Esau, and also he cometh to meet thee, and four hundred men with him.');
+INSERT INTO t1(docid,words) VALUES(1032007,'Then Jacob was greatly afraid and distressed: and he divided the people that was with him, and the flocks, and herds, and the camels, into two bands;');
+INSERT INTO t1(docid,words) VALUES(1032008,'And said, If Esau come to the one company, and smite it, then the other company which is left shall escape.');
+INSERT INTO t1(docid,words) VALUES(1032009,'And Jacob said, O God of my father Abraham, and God of my father Isaac, the LORD which saidst unto me, Return unto thy country, and to thy kindred, and I will deal well with thee:');
+INSERT INTO t1(docid,words) VALUES(1032010,'I am not worthy of the least of all the mercies, and of all the truth, which thou hast shewed unto thy servant; for with my staff I passed over this Jordan; and now I am become two bands.');
+INSERT INTO t1(docid,words) VALUES(1032011,'Deliver me, I pray thee, from the hand of my brother, from the hand of Esau: for I fear him, lest he will come and smite me, and the mother with the children.');
+INSERT INTO t1(docid,words) VALUES(1032012,'And thou saidst, I will surely do thee good, and make thy seed as the sand of the sea, which cannot be numbered for multitude.');
+INSERT INTO t1(docid,words) VALUES(1032013,'And he lodged there that same night; and took of that which came to his hand a present for Esau his brother;');
+INSERT INTO t1(docid,words) VALUES(1032014,'Two hundred she goats, and twenty he goats, two hundred ewes, and twenty rams,');
+INSERT INTO t1(docid,words) VALUES(1032015,'Thirty milch camels with their colts, forty kine, and ten bulls, twenty she asses, and ten foals.');
+INSERT INTO t1(docid,words) VALUES(1032016,'And he delivered them into the hand of his servants, every drove by themselves; and said unto his servants, Pass over before me, and put a space betwixt drove and drove.');
+INSERT INTO t1(docid,words) VALUES(1032017,'And he commanded the foremost, saying, When Esau my brother meeteth thee, and asketh thee, saying, Whose art thou? and whither goest thou? and whose are these before thee?');
+INSERT INTO t1(docid,words) VALUES(1032018,'Then thou shalt say, They be thy servant Jacob''s; it is a present sent unto my lord Esau: and, behold, also he is behind us.');
+INSERT INTO t1(docid,words) VALUES(1032019,'And so commanded he the second, and the third, and all that followed the droves, saying, On this manner shall ye speak unto Esau, when ye find him.');
+INSERT INTO t1(docid,words) VALUES(1032020,'And say ye moreover, Behold, thy servant Jacob is behind us. For he said, I will appease him with the present that goeth before me, and afterward I will see his face; peradventure he will accept of me.');
+INSERT INTO t1(docid,words) VALUES(1032021,'So went the present over before him: and himself lodged that night in the company.');
+INSERT INTO t1(docid,words) VALUES(1032022,'And he rose up that night, and took his two wives, and his two womenservants, and his eleven sons, and passed over the ford Jabbok.');
+INSERT INTO t1(docid,words) VALUES(1032023,'And he took them, and sent them over the brook, and sent over that he had.');
+INSERT INTO t1(docid,words) VALUES(1032024,'And Jacob was left alone; and there wrestled a man with him until the breaking of the day.');
+INSERT INTO t1(docid,words) VALUES(1032025,'And when he saw that he prevailed not against him, he touched the hollow of his thigh; and the hollow of Jacob''s thigh was out of joint, as he wrestled with him.');
+INSERT INTO t1(docid,words) VALUES(1032026,'And he said, Let me go, for the day breaketh. And he said, I will not let thee go, except thou bless me.');
+INSERT INTO t1(docid,words) VALUES(1032027,'And he said unto him, What is thy name? And he said, Jacob.');
+INSERT INTO t1(docid,words) VALUES(1032028,'And he said, Thy name shall be called no more Jacob, but Israel: for as a prince hast thou power with God and with men, and hast prevailed.');
+INSERT INTO t1(docid,words) VALUES(1032029,'And Jacob asked him, and said, Tell me, I pray thee, thy name. And he said, Wherefore is it that thou dost ask after my name? And he blessed him there.');
+INSERT INTO t1(docid,words) VALUES(1032030,'And Jacob called the name of the place Peniel: for I have seen God face to face, and my life is preserved.');
+INSERT INTO t1(docid,words) VALUES(1032031,'And as he passed over Penuel the sun rose upon him, and he halted upon his thigh.');
+INSERT INTO t1(docid,words) VALUES(1032032,'Therefore the children of Israel eat not of the sinew which shrank, which is upon the hollow of the thigh, unto this day: because he touched the hollow of Jacob''s thigh in the sinew that shrank.');
+INSERT INTO t1(docid,words) VALUES(1033001,'And Jacob lifted up his eyes, and looked, and, behold, Esau came, and with him four hundred men. And he divided the children unto Leah, and unto Rachel, and unto the two handmaids.');
+INSERT INTO t1(docid,words) VALUES(1033002,'And he put the handmaids and their children foremost, and Leah and her children after, and Rachel and Joseph hindermost.');
+INSERT INTO t1(docid,words) VALUES(1033003,'And he passed over before them, and bowed himself to the ground seven times, until he came near to his brother.');
+INSERT INTO t1(docid,words) VALUES(1033004,'And Esau ran to meet him, and embraced him, and fell on his neck, and kissed him: and they wept.');
+INSERT INTO t1(docid,words) VALUES(1033005,'And he lifted up his eyes, and saw the women and the children; and said, Who are those with thee? And he said, The children which God hath graciously given thy servant.');
+INSERT INTO t1(docid,words) VALUES(1033006,'Then the handmaidens came near, they and their children, and they bowed themselves.');
+INSERT INTO t1(docid,words) VALUES(1033007,'And Leah also with her children came near, and bowed themselves: and after came Joseph near and Rachel, and they bowed themselves.');
+INSERT INTO t1(docid,words) VALUES(1033008,'And he said, What meanest thou by all this drove which I met? And he said, These are to find grace in the sight of my lord.');
+INSERT INTO t1(docid,words) VALUES(1033009,'And Esau said, I have enough, my brother; keep that thou hast unto thyself.');
+INSERT INTO t1(docid,words) VALUES(1033010,'And Jacob said, Nay, I pray thee, if now I have found grace in thy sight, then receive my present at my hand: for therefore I have seen thy face, as though I had seen the face of God, and thou wast pleased with me.');
+INSERT INTO t1(docid,words) VALUES(1033011,'Take, I pray thee, my blessing that is brought to thee; because God hath dealt graciously with me, and because I have enough. And he urged him, and he took it.');
+INSERT INTO t1(docid,words) VALUES(1033012,'And he said, Let us take our journey, and let us go, and I will go before thee.');
+INSERT INTO t1(docid,words) VALUES(1033013,'And he said unto him, My lord knoweth that the children are tender, and the flocks and herds with young are with me: and if men should overdrive them one day, all the flock will die.');
+INSERT INTO t1(docid,words) VALUES(1033014,'Let my lord, I pray thee, pass over before his servant: and I will lead on softly, according as the cattle that goeth before me and the children be able to endure, until I come unto my lord unto Seir.');
+INSERT INTO t1(docid,words) VALUES(1033015,'And Esau said, Let me now leave with thee some of the folk that are with me. And he said, What needeth it? let me find grace in the sight of my lord.');
+INSERT INTO t1(docid,words) VALUES(1033016,'So Esau returned that day on his way unto Seir.');
+INSERT INTO t1(docid,words) VALUES(1033017,'And Jacob journeyed to Succoth, and built him an house, and made booths for his cattle: therefore the name of the place is called Succoth.');
+INSERT INTO t1(docid,words) VALUES(1033018,'And Jacob came to Shalem, a city of Shechem, which is in the land of Canaan, when he came from Padanaram; and pitched his tent before the city.');
+INSERT INTO t1(docid,words) VALUES(1033019,'And he bought a parcel of a field, where he had spread his tent, at the hand of the children of Hamor, Shechem''s father, for an hundred pieces of money.');
+INSERT INTO t1(docid,words) VALUES(1033020,'And he erected there an altar, and called it EleloheIsrael.');
+INSERT INTO t1(docid,words) VALUES(1034001,'And Dinah the daughter of Leah, which she bare unto Jacob, went out to see the daughters of the land.');
+INSERT INTO t1(docid,words) VALUES(1034002,'And when Shechem the son of Hamor the Hivite, prince of the country, saw her, he took her, and lay with her, and defiled her.');
+INSERT INTO t1(docid,words) VALUES(1034003,'And his soul clave unto Dinah the daughter of Jacob, and he loved the damsel, and spake kindly unto the damsel.');
+INSERT INTO t1(docid,words) VALUES(1034004,'And Shechem spake unto his father Hamor, saying, Get me this damsel to wife.');
+INSERT INTO t1(docid,words) VALUES(1034005,'And Jacob heard that he had defiled Dinah his daughter: now his sons were with his cattle in the field: and Jacob held his peace until they were come.');
+INSERT INTO t1(docid,words) VALUES(1034006,'And Hamor the father of Shechem went out unto Jacob to commune with him.');
+INSERT INTO t1(docid,words) VALUES(1034007,'And the sons of Jacob came out of the field when they heard it: and the men were grieved, and they were very wroth, because he had wrought folly in Israel in lying with Jacob''s daughter: which thing ought not to be done.');
+INSERT INTO t1(docid,words) VALUES(1034008,'And Hamor communed with them, saying, The soul of my son Shechem longeth for your daughter: I pray you give her him to wife.');
+INSERT INTO t1(docid,words) VALUES(1034009,'And make ye marriages with us, and give your daughters unto us, and take our daughters unto you.');
+INSERT INTO t1(docid,words) VALUES(1034010,'And ye shall dwell with us: and the land shall be before you; dwell and trade ye therein, and get you possessions therein.');
+INSERT INTO t1(docid,words) VALUES(1034011,'And Shechem said unto her father and unto her brethren, Let me find grace in your eyes, and what ye shall say unto me I will give.');
+INSERT INTO t1(docid,words) VALUES(1034012,'Ask me never so much dowry and gift, and I will give according as ye shall say unto me: but give me the damsel to wife.');
+INSERT INTO t1(docid,words) VALUES(1034013,'And the sons of Jacob answered Shechem and Hamor his father deceitfully, and said, because he had defiled Dinah their sister:');
+INSERT INTO t1(docid,words) VALUES(1034014,'And they said unto them, We cannot do this thing, to give our sister to one that is uncircumcised; for that were a reproach unto us:');
+INSERT INTO t1(docid,words) VALUES(1034015,'But in this will we consent unto you: If ye will be as we be, that every male of you be circumcised;');
+INSERT INTO t1(docid,words) VALUES(1034016,'Then will we give our daughters unto you, and we will take your daughters to us, and we will dwell with you, and we will become one people.');
+INSERT INTO t1(docid,words) VALUES(1034017,'But if ye will not hearken unto us, to be circumcised; then will we take our daughter, and we will be gone.');
+INSERT INTO t1(docid,words) VALUES(1034018,'And their words pleased Hamor, and Shechem Hamor''s son.');
+INSERT INTO t1(docid,words) VALUES(1034019,'And the young man deferred not to do the thing, because he had delight in Jacob''s daughter: and he was more honourable than all the house of his father.');
+INSERT INTO t1(docid,words) VALUES(1034020,'And Hamor and Shechem his son came unto the gate of their city, and communed with the men of their city, saying,');
+INSERT INTO t1(docid,words) VALUES(1034021,'These men are peaceable with us; therefore let them dwell in the land, and trade therein; for the land, behold, it is large enough for them; let us take their daughters to us for wives, and let us give them our daughters.');
+INSERT INTO t1(docid,words) VALUES(1034022,'Only herein will the men consent unto us for to dwell with us, to be one people, if every male among us be circumcised, as they are circumcised.');
+INSERT INTO t1(docid,words) VALUES(1034023,'Shall not their cattle and their substance and every beast of their''s be our''s? only let us consent unto them, and they will dwell with us.');
+INSERT INTO t1(docid,words) VALUES(1034024,'And unto Hamor and unto Shechem his son hearkened all that went out of the gate of his city; and every male was circumcised, all that went out of the gate of his city.');
+INSERT INTO t1(docid,words) VALUES(1034025,'And it came to pass on the third day, when they were sore, that two of the sons of Jacob, Simeon and Levi, Dinah''s brethren, took each man his sword, and came upon the city boldly, and slew all the males.');
+INSERT INTO t1(docid,words) VALUES(1034026,'And they slew Hamor and Shechem his son with the edge of the sword, and took Dinah out of Shechem''s house, and went out.');
+INSERT INTO t1(docid,words) VALUES(1034027,'The sons of Jacob came upon the slain, and spoiled the city, because they had defiled their sister.');
+INSERT INTO t1(docid,words) VALUES(1034028,'They took their sheep, and their oxen, and their asses, and that which was in the city, and that which was in the field,');
+INSERT INTO t1(docid,words) VALUES(1034029,'And all their wealth, and all their little ones, and their wives took they captive, and spoiled even all that was in the house.');
+INSERT INTO t1(docid,words) VALUES(1034030,'And Jacob said to Simeon and Levi, Ye have troubled me to make me to stink among the inhabitants of the land, among the Canaanites and the Perizzites: and I being few in number, they shall gather themselves together against me, and slay me; and I shall be destroyed, I and my house.');
+INSERT INTO t1(docid,words) VALUES(1034031,'And they said, Should he deal with our sister as with an harlot?');
+INSERT INTO t1(docid,words) VALUES(1035001,'And God said unto Jacob, Arise, go up to Bethel, and dwell there: and make there an altar unto God, that appeared unto thee when thou fleddest from the face of Esau thy brother.');
+INSERT INTO t1(docid,words) VALUES(1035002,'Then Jacob said unto his household, and to all that were with him, Put away the strange gods that are among you, and be clean, and change your garments:');
+INSERT INTO t1(docid,words) VALUES(1035003,'And let us arise, and go up to Bethel; and I will make there an altar unto God, who answered me in the day of my distress, and was with me in the way which I went.');
+INSERT INTO t1(docid,words) VALUES(1035004,'And they gave unto Jacob all the strange gods which were in their hand, and all their earrings which were in their ears; and Jacob hid them under the oak which was by Shechem.');
+INSERT INTO t1(docid,words) VALUES(1035005,'And they journeyed: and the terror of God was upon the cities that were round about them, and they did not pursue after the sons of Jacob.');
+INSERT INTO t1(docid,words) VALUES(1035006,'So Jacob came to Luz, which is in the land of Canaan, that is, Bethel, he and all the people that were with him.');
+INSERT INTO t1(docid,words) VALUES(1035007,'And he built there an altar, and called the place Elbethel: because there God appeared unto him, when he fled from the face of his brother.');
+INSERT INTO t1(docid,words) VALUES(1035008,'But Deborah Rebekah''s nurse died, and she was buried beneath Bethel under an oak: and the name of it was called Allonbachuth.');
+INSERT INTO t1(docid,words) VALUES(1035009,'And God appeared unto Jacob again, when he came out of Padanaram, and blessed him.');
+INSERT INTO t1(docid,words) VALUES(1035010,'And God said unto him, Thy name is Jacob: thy name shall not be called any more Jacob, but Israel shall be thy name: and he called his name Israel.');
+INSERT INTO t1(docid,words) VALUES(1035011,'And God said unto him, I am God Almighty: be fruitful and multiply; a nation and a company of nations shall be of thee, and kings shall come out of thy loins;');
+INSERT INTO t1(docid,words) VALUES(1035012,'And the land which I gave Abraham and Isaac, to thee I will give it, and to thy seed after thee will I give the land.');
+INSERT INTO t1(docid,words) VALUES(1035013,'And God went up from him in the place where he talked with him.');
+INSERT INTO t1(docid,words) VALUES(1035014,'And Jacob set up a pillar in the place where he talked with him, even a pillar of stone: and he poured a drink offering thereon, and he poured oil thereon.');
+INSERT INTO t1(docid,words) VALUES(1035015,'And Jacob called the name of the place where God spake with him, Bethel.');
+INSERT INTO t1(docid,words) VALUES(1035016,'And they journeyed from Bethel; and there was but a little way to come to Ephrath: and Rachel travailed, and she had hard labour.');
+INSERT INTO t1(docid,words) VALUES(1035017,'And it came to pass, when she was in hard labour, that the midwife said unto her, Fear not; thou shalt have this son also.');
+INSERT INTO t1(docid,words) VALUES(1035018,'And it came to pass, as her soul was in departing, (for she died) that she called his name Benoni: but his father called him Benjamin.');
+INSERT INTO t1(docid,words) VALUES(1035019,'And Rachel died, and was buried in the way to Ephrath, which is Bethlehem.');
+INSERT INTO t1(docid,words) VALUES(1035020,'And Jacob set a pillar upon her grave: that is the pillar of Rachel''s grave unto this day.');
+INSERT INTO t1(docid,words) VALUES(1035021,'And Israel journeyed, and spread his tent beyond the tower of Edar.');
+INSERT INTO t1(docid,words) VALUES(1035022,'And it came to pass, when Israel dwelt in that land, that Reuben went and lay with Bilhah his father''s concubine: and Israel heard it. Now the sons of Jacob were twelve:');
+INSERT INTO t1(docid,words) VALUES(1035023,'The sons of Leah; Reuben, Jacob''s firstborn, and Simeon, and Levi, and Judah, and Issachar, and Zebulun:');
+INSERT INTO t1(docid,words) VALUES(1035024,'The sons of Rachel; Joseph, and Benjamin:');
+INSERT INTO t1(docid,words) VALUES(1035025,'And the sons of Bilhah, Rachel''s handmaid; Dan, and Naphtali:');
+INSERT INTO t1(docid,words) VALUES(1035026,'And the sons of Zilpah, Leah''s handmaid: Gad, and Asher: these are the sons of Jacob, which were born to him in Padanaram.');
+INSERT INTO t1(docid,words) VALUES(1035027,'And Jacob came unto Isaac his father unto Mamre, unto the city of Arbah, which is Hebron, where Abraham and Isaac sojourned.');
+INSERT INTO t1(docid,words) VALUES(1035028,'And the days of Isaac were an hundred and fourscore years.');
+INSERT INTO t1(docid,words) VALUES(1035029,'And Isaac gave up the ghost, and died, and was gathered unto his people, being old and full of days: and his sons Esau and Jacob buried him.');
+INSERT INTO t1(docid,words) VALUES(1036001,'Now these are the generations of Esau, who is Edom.');
+INSERT INTO t1(docid,words) VALUES(1036002,'Esau took his wives of the daughters of Canaan; Adah the daughter of Elon the Hittite, and Aholibamah the daughter of Anah the daughter of Zibeon the Hivite;');
+INSERT INTO t1(docid,words) VALUES(1036003,'And Bashemath Ishmael''s daughter, sister of Nebajoth.');
+INSERT INTO t1(docid,words) VALUES(1036004,'And Adah bare to Esau Eliphaz; and Bashemath bare Reuel;');
+INSERT INTO t1(docid,words) VALUES(1036005,'And Aholibamah bare Jeush, and Jaalam, and Korah: these are the sons of Esau, which were born unto him in the land of Canaan.');
+INSERT INTO t1(docid,words) VALUES(1036006,'And Esau took his wives, and his sons, and his daughters, and all the persons of his house, and his cattle, and all his beasts, and all his substance, which he had got in the land of Canaan; and went into the country from the face of his brother Jacob.');
+INSERT INTO t1(docid,words) VALUES(1036007,'For their riches were more than that they might dwell together; and the land wherein they were strangers could not bear them because of their cattle.');
+INSERT INTO t1(docid,words) VALUES(1036008,'Thus dwelt Esau in mount Seir: Esau is Edom.');
+INSERT INTO t1(docid,words) VALUES(1036009,'And these are the generations of Esau the father of the Edomites in mount Seir:');
+INSERT INTO t1(docid,words) VALUES(1036010,'These are the names of Esau''s sons; Eliphaz the son of Adah the wife of Esau, Reuel the son of Bashemath the wife of Esau.');
+INSERT INTO t1(docid,words) VALUES(1036011,'And the sons of Eliphaz were Teman, Omar, Zepho, and Gatam, and Kenaz.');
+INSERT INTO t1(docid,words) VALUES(1036012,'And Timna was concubine to Eliphaz Esau''s son; and she bare to Eliphaz Amalek: these were the sons of Adah Esau''s wife.');
+INSERT INTO t1(docid,words) VALUES(1036013,'And these are the sons of Reuel; Nahath, and Zerah, Shammah, and Mizzah: these were the sons of Bashemath Esau''s wife.');
+INSERT INTO t1(docid,words) VALUES(1036014,'And these were the sons of Aholibamah, the daughter of Anah the daughter of Zibeon, Esau''s wife: and she bare to Esau Jeush, and Jaalam, and Korah.');
+INSERT INTO t1(docid,words) VALUES(1036015,'These were dukes of the sons of Esau: the sons of Eliphaz the firstborn son of Esau; duke Teman, duke Omar, duke Zepho, duke Kenaz,');
+INSERT INTO t1(docid,words) VALUES(1036016,'Duke Korah, duke Gatam, and duke Amalek: these are the dukes that came of Eliphaz in the land of Edom; these were the sons of Adah.');
+INSERT INTO t1(docid,words) VALUES(1036017,'And these are the sons of Reuel Esau''s son; duke Nahath, duke Zerah, duke Shammah, duke Mizzah: these are the dukes that came of Reuel in the land of Edom; these are the sons of Bashemath Esau''s wife.');
+INSERT INTO t1(docid,words) VALUES(1036018,'And these are the sons of Aholibamah Esau''s wife; duke Jeush, duke Jaalam, duke Korah: these were the dukes that came of Aholibamah the daughter of Anah, Esau''s wife.');
+INSERT INTO t1(docid,words) VALUES(1036019,'These are the sons of Esau, who is Edom, and these are their dukes.');
+INSERT INTO t1(docid,words) VALUES(1036020,'These are the sons of Seir the Horite, who inhabited the land; Lotan, and Shobal, and Zibeon, and Anah,');
+INSERT INTO t1(docid,words) VALUES(1036021,'And Dishon, and Ezer, and Dishan: these are the dukes of the Horites, the children of Seir in the land of Edom.');
+INSERT INTO t1(docid,words) VALUES(1036022,'And the children of Lotan were Hori and Hemam; and Lotan''s sister was Timna.');
+INSERT INTO t1(docid,words) VALUES(1036023,'And the children of Shobal were these; Alvan, and Manahath, and Ebal, Shepho, and Onam.');
+INSERT INTO t1(docid,words) VALUES(1036024,'And these are the children of Zibeon; both Ajah, and Anah: this was that Anah that found the mules in the wilderness, as he fed the asses of Zibeon his father.');
+INSERT INTO t1(docid,words) VALUES(1036025,'And the children of Anah were these; Dishon, and Aholibamah the daughter of Anah.');
+INSERT INTO t1(docid,words) VALUES(1036026,'And these are the children of Dishon; Hemdan, and Eshban, and Ithran, and Cheran.');
+INSERT INTO t1(docid,words) VALUES(1036027,'The children of Ezer are these; Bilhan, and Zaavan, and Akan.');
+INSERT INTO t1(docid,words) VALUES(1036028,'The children of Dishan are these; Uz, and Aran.');
+INSERT INTO t1(docid,words) VALUES(1036029,'These are the dukes that came of the Horites; duke Lotan, duke Shobal, duke Zibeon, duke Anah,');
+INSERT INTO t1(docid,words) VALUES(1036030,'Duke Dishon, duke Ezer, duke Dishan: these are the dukes that came of Hori, among their dukes in the land of Seir.');
+INSERT INTO t1(docid,words) VALUES(1036031,'And these are the kings that reigned in the land of Edom, before there reigned any king over the children of Israel.');
+INSERT INTO t1(docid,words) VALUES(1036032,'And Bela the son of Beor reigned in Edom: and the name of his city was Dinhabah.');
+INSERT INTO t1(docid,words) VALUES(1036033,'And Bela died, and Jobab the son of Zerah of Bozrah reigned in his stead.');
+INSERT INTO t1(docid,words) VALUES(1036034,'And Jobab died, and Husham of the land of Temani reigned in his stead.');
+INSERT INTO t1(docid,words) VALUES(1036035,'And Husham died, and Hadad the son of Bedad, who smote Midian in the field of Moab, reigned in his stead: and the name of his city was Avith.');
+INSERT INTO t1(docid,words) VALUES(1036036,'And Hadad died, and Samlah of Masrekah reigned in his stead.');
+INSERT INTO t1(docid,words) VALUES(1036037,'And Samlah died, and Saul of Rehoboth by the river reigned in his stead.');
+INSERT INTO t1(docid,words) VALUES(1036038,'And Saul died, and Baalhanan the son of Achbor reigned in his stead.');
+INSERT INTO t1(docid,words) VALUES(1036039,'And Baalhanan the son of Achbor died, and Hadar reigned in his stead: and the name of his city was Pau; and his wife''s name was Mehetabel, the daughter of Matred, the daughter of Mezahab.');
+INSERT INTO t1(docid,words) VALUES(1036040,'And these are the names of the dukes that came of Esau, according to their families, after their places, by their names; duke Timnah, duke Alvah, duke Jetheth,');
+INSERT INTO t1(docid,words) VALUES(1036041,'Duke Aholibamah, duke Elah, duke Pinon,');
+INSERT INTO t1(docid,words) VALUES(1036042,'Duke Kenaz, duke Teman, duke Mibzar,');
+INSERT INTO t1(docid,words) VALUES(1036043,'Duke Magdiel, duke Iram: these be the dukes of Edom, according to their habitations in the land of their possession: he is Esau the father of the Edomites.');
+INSERT INTO t1(docid,words) VALUES(1037001,'And Jacob dwelt in the land wherein his father was a stranger, in the land of Canaan.');
+INSERT INTO t1(docid,words) VALUES(1037002,'These are the generations of Jacob. Joseph, being seventeen years old, was feeding the flock with his brethren; and the lad was with the sons of Bilhah, and with the sons of Zilpah, his father''s wives: and Joseph brought unto his father their evil report.');
+INSERT INTO t1(docid,words) VALUES(1037003,'Now Israel loved Joseph more than all his children, because he was the son of his old age: and he made him a coat of many colours.');
+INSERT INTO t1(docid,words) VALUES(1037004,'And when his brethren saw that their father loved him more than all his brethren, they hated him, and could not speak peaceably unto him.');
+INSERT INTO t1(docid,words) VALUES(1037005,'And Joseph dreamed a dream, and he told it his brethren: and they hated him yet the more.');
+INSERT INTO t1(docid,words) VALUES(1037006,'And he said unto them, Hear, I pray you, this dream which I have dreamed:');
+INSERT INTO t1(docid,words) VALUES(1037007,'For, behold, we were binding sheaves in the field, and, lo, my sheaf arose, and also stood upright; and, behold, your sheaves stood round about, and made obeisance to my sheaf.');
+INSERT INTO t1(docid,words) VALUES(1037008,'And his brethren said to him, Shalt thou indeed reign over us? or shalt thou indeed have dominion over us? And they hated him yet the more for his dreams, and for his words.');
+INSERT INTO t1(docid,words) VALUES(1037009,'And he dreamed yet another dream, and told it his brethren, and said, Behold, I have dreamed a dream more; and, behold, the sun and the moon and the eleven stars made obeisance to me.');
+INSERT INTO t1(docid,words) VALUES(1037010,'And he told it to his father, and to his brethren: and his father rebuked him, and said unto him, What is this dream that thou hast dreamed? Shall I and thy mother and thy brethren indeed come to bow down ourselves to thee to the earth?');
+INSERT INTO t1(docid,words) VALUES(1037011,'And his brethren envied him; but his father observed the saying.');
+INSERT INTO t1(docid,words) VALUES(1037012,'And his brethren went to feed their father''s flock in Shechem.');
+INSERT INTO t1(docid,words) VALUES(1037013,'And Israel said unto Joseph, Do not thy brethren feed the flock in Shechem? come, and I will send thee unto them. And he said to him, Here am I.');
+INSERT INTO t1(docid,words) VALUES(1037014,'And he said to him, Go, I pray thee, see whether it be well with thy brethren, and well with the flocks; and bring me word again. So he sent him out of the vale of Hebron, and he came to Shechem.');
+INSERT INTO t1(docid,words) VALUES(1037015,'And a certain man found him, and, behold, he was wandering in the field: and the man asked him, saying, What seekest thou?');
+INSERT INTO t1(docid,words) VALUES(1037016,'And he said, I seek my brethren: tell me, I pray thee, where they feed their flocks.');
+INSERT INTO t1(docid,words) VALUES(1037017,'And the man said, They are departed hence; for I heard them say, Let us go to Dothan. And Joseph went after his brethren, and found them in Dothan.');
+INSERT INTO t1(docid,words) VALUES(1037018,'And when they saw him afar off, even before he came near unto them, they conspired against him to slay him.');
+INSERT INTO t1(docid,words) VALUES(1037019,'And they said one to another, Behold, this dreamer cometh.');
+INSERT INTO t1(docid,words) VALUES(1037020,'Come now therefore, and let us slay him, and cast him into some pit, and we will say, Some evil beast hath devoured him: and we shall see what will become of his dreams.');
+INSERT INTO t1(docid,words) VALUES(1037021,'And Reuben heard it, and he delivered him out of their hands; and said, Let us not kill him.');
+INSERT INTO t1(docid,words) VALUES(1037022,'And Reuben said unto them, Shed no blood, but cast him into this pit that is in the wilderness, and lay no hand upon him; that he might rid him out of their hands, to deliver him to his father again.');
+INSERT INTO t1(docid,words) VALUES(1037023,'And it came to pass, when Joseph was come unto his brethren, that they stript Joseph out of his coat, his coat of many colours that was on him;');
+INSERT INTO t1(docid,words) VALUES(1037024,'And they took him, and cast him into a pit: and the pit was empty, there was no water in it.');
+INSERT INTO t1(docid,words) VALUES(1037025,'And they sat down to eat bread: and they lifted up their eyes and looked, and, behold, a company of Ishmeelites came from Gilead with their camels bearing spicery and balm and myrrh, going to carry it down to Egypt.');
+INSERT INTO t1(docid,words) VALUES(1037026,'And Judah said unto his brethren, What profit is it if we slay our brother, and conceal his blood?');
+INSERT INTO t1(docid,words) VALUES(1037027,'Come, and let us sell him to the Ishmeelites, and let not our hand be upon him; for he is our brother and our flesh. And his brethren were content.');
+INSERT INTO t1(docid,words) VALUES(1037028,'Then there passed by Midianites merchantmen; and they drew and lifted up Joseph out of the pit, and sold Joseph to the Ishmeelites for twenty pieces of silver: and they brought Joseph into Egypt.');
+INSERT INTO t1(docid,words) VALUES(1037029,'And Reuben returned unto the pit; and, behold, Joseph was not in the pit; and he rent his clothes.');
+INSERT INTO t1(docid,words) VALUES(1037030,'And he returned unto his brethren, and said, The child is not; and I, whither shall I go?');
+INSERT INTO t1(docid,words) VALUES(1037031,'And they took Joseph''s coat, and killed a kid of the goats, and dipped the coat in the blood;');
+INSERT INTO t1(docid,words) VALUES(1037032,'And they sent the coat of many colours, and they brought it to their father; and said, This have we found: know now whether it be thy son''s coat or no.');
+INSERT INTO t1(docid,words) VALUES(1037033,'And he knew it, and said, It is my son''s coat; an evil beast hath devoured him; Joseph is without doubt rent in pieces.');
+INSERT INTO t1(docid,words) VALUES(1037034,'And Jacob rent his clothes, and put sackcloth upon his loins, and mourned for his son many days.');
+INSERT INTO t1(docid,words) VALUES(1037035,'And all his sons and all his daughters rose up to comfort him; but he refused to be comforted; and he said, For I will go down into the grave unto my son mourning. Thus his father wept for him.');
+INSERT INTO t1(docid,words) VALUES(1037036,'And the Midianites sold him into Egypt unto Potiphar, an officer of Pharaoh''s, and captain of the guard.');
+INSERT INTO t1(docid,words) VALUES(1038001,'And it came to pass at that time, that Judah went down from his brethren, and turned in to a certain Adullamite, whose name was Hirah.');
+INSERT INTO t1(docid,words) VALUES(1038002,'And Judah saw there a daughter of a certain Canaanite, whose name was Shuah; and he took her, and went in unto her.');
+INSERT INTO t1(docid,words) VALUES(1038003,'And she conceived, and bare a son; and he called his name Er.');
+INSERT INTO t1(docid,words) VALUES(1038004,'And she conceived again, and bare a son; and she called his name Onan.');
+INSERT INTO t1(docid,words) VALUES(1038005,'And she yet again conceived, and bare a son; and called his name Shelah: and he was at Chezib, when she bare him.');
+INSERT INTO t1(docid,words) VALUES(1038006,'And Judah took a wife for Er his firstborn, whose name was Tamar.');
+INSERT INTO t1(docid,words) VALUES(1038007,'And Er, Judah''s firstborn, was wicked in the sight of the LORD; and the LORD slew him.');
+INSERT INTO t1(docid,words) VALUES(1038008,'And Judah said unto Onan, Go in unto thy brother''s wife, and marry her, and raise up seed to thy brother.');
+INSERT INTO t1(docid,words) VALUES(1038009,'And Onan knew that the seed should not be his; and it came to pass, when he went in unto his brother''s wife, that he spilled it on the ground, lest that he should give seed to his brother.');
+INSERT INTO t1(docid,words) VALUES(1038010,'And the thing which he did displeased the LORD: wherefore he slew him also.');
+INSERT INTO t1(docid,words) VALUES(1038011,'Then said Judah to Tamar his daughter in law, Remain a widow at thy father''s house, till Shelah my son be grown: for he said, Lest peradventure he die also, as his brethren did. And Tamar went and dwelt in her father''s house.');
+INSERT INTO t1(docid,words) VALUES(1038012,'And in process of time the daughter of Shuah Judah''s wife died; and Judah was comforted, and went up unto his sheepshearers to Timnath, he and his friend Hirah the Adullamite.');
+INSERT INTO t1(docid,words) VALUES(1038013,'And it was told Tamar, saying, Behold thy father in law goeth up to Timnath to shear his sheep.');
+INSERT INTO t1(docid,words) VALUES(1038014,'And she put her widow''s garments off from her, and covered her with a vail, and wrapped herself, and sat in an open place, which is by the way to Timnath; for she saw that Shelah was grown, and she was not given unto him to wife.');
+INSERT INTO t1(docid,words) VALUES(1038015,'When Judah saw her, he thought her to be an harlot; because she had covered her face.');
+INSERT INTO t1(docid,words) VALUES(1038016,'And he turned unto her by the way, and said, Go to, I pray thee, let me come in unto thee; (for he knew not that she was his daughter in law.) And she said, What wilt thou give me, that thou mayest come in unto me?');
+INSERT INTO t1(docid,words) VALUES(1038017,'And he said, I will send thee a kid from the flock. And she said, Wilt thou give me a pledge, till thou send it?');
+INSERT INTO t1(docid,words) VALUES(1038018,'And he said, What pledge shall I give thee? And she said, Thy signet, and thy bracelets, and thy staff that is in thine hand. And he gave it her, and came in unto her, and she conceived by him.');
+INSERT INTO t1(docid,words) VALUES(1038019,'And she arose, and went away, and laid by her vail from her, and put on the garments of her widowhood.');
+INSERT INTO t1(docid,words) VALUES(1038020,'And Judah sent the kid by the hand of his friend the Adullamite, to receive his pledge from the woman''s hand: but he found her not.');
+INSERT INTO t1(docid,words) VALUES(1038021,'Then he asked the men of that place, saying, Where is the harlot, that was openly by the way side? And they said, There was no harlot in this place.');
+INSERT INTO t1(docid,words) VALUES(1038022,'And he returned to Judah, and said, I cannot find her; and also the men of the place said, that there was no harlot in this place.');
+INSERT INTO t1(docid,words) VALUES(1038023,'And Judah said, Let her take it to her, lest we be shamed: behold, I sent this kid, and thou hast not found her.');
+INSERT INTO t1(docid,words) VALUES(1038024,'And it came to pass about three months after, that it was told Judah, saying, Tamar thy daughter in law hath played the harlot; and also, behold, she is with child by whoredom. And Judah said, Bring her forth, and let her be burnt.');
+INSERT INTO t1(docid,words) VALUES(1038025,'When she was brought forth, she sent to her father in law, saying, By the man, whose these are, am I with child: and she said, Discern, I pray thee, whose are these, the signet, and bracelets, and staff.');
+INSERT INTO t1(docid,words) VALUES(1038026,'And Judah acknowledged them, and said, She hath been more righteous than I; because that I gave her not to Shelah my son. And he knew her again no more.');
+INSERT INTO t1(docid,words) VALUES(1038027,'And it came to pass in the time of her travail, that, behold, twins were in her womb.');
+INSERT INTO t1(docid,words) VALUES(1038028,'And it came to pass, when she travailed, that the one put out his hand: and the midwife took and bound upon his hand a scarlet thread, saying, This came out first.');
+INSERT INTO t1(docid,words) VALUES(1038029,'And it came to pass, as he drew back his hand, that, behold, his brother came out: and she said, How hast thou broken forth? this breach be upon thee: therefore his name was called Pharez.');
+INSERT INTO t1(docid,words) VALUES(1038030,'And afterward came out his brother, that had the scarlet thread upon his hand: and his name was called Zarah.');
+INSERT INTO t1(docid,words) VALUES(1039001,'And Joseph was brought down to Egypt; and Potiphar, an officer of Pharaoh, captain of the guard, an Egyptian, bought him of the hands of the Ishmeelites, which had brought him down thither.');
+INSERT INTO t1(docid,words) VALUES(1039002,'And the LORD was with Joseph, and he was a prosperous man; and he was in the house of his master the Egyptian.');
+INSERT INTO t1(docid,words) VALUES(1039003,'And his master saw that the LORD was with him, and that the LORD made all that he did to prosper in his hand.');
+INSERT INTO t1(docid,words) VALUES(1039004,'And Joseph found grace in his sight, and he served him: and he made him overseer over his house, and all that he had he put into his hand.');
+INSERT INTO t1(docid,words) VALUES(1039005,'And it came to pass from the time that he had made him overseer in his house, and over all that he had, that the LORD blessed the Egyptian''s house for Joseph''s sake; and the blessing of the LORD was upon all that he had in the house, and in the field.');
+INSERT INTO t1(docid,words) VALUES(1039006,'And he left all that he had in Joseph''s hand; and he knew not ought he had, save the bread which he did eat. And Joseph was a goodly person, and well favoured.');
+INSERT INTO t1(docid,words) VALUES(1039007,'And it came to pass after these things, that his master''s wife cast her eyes upon Joseph; and she said, Lie with me.');
+INSERT INTO t1(docid,words) VALUES(1039008,'But he refused, and said unto his master''s wife, Behold, my master wotteth not what is with me in the house, and he hath committed all that he hath to my hand;');
+INSERT INTO t1(docid,words) VALUES(1039009,'There is none greater in this house than I; neither hath he kept back any thing from me but thee, because thou art his wife: how then can I do this great wickedness, and sin against God?');
+INSERT INTO t1(docid,words) VALUES(1039010,'And it came to pass, as she spake to Joseph day by day, that he hearkened not unto her, to lie by her, or to be with her.');
+INSERT INTO t1(docid,words) VALUES(1039011,'And it came to pass about this time, that Joseph went into the house to do his business; and there was none of the men of the house there within.');
+INSERT INTO t1(docid,words) VALUES(1039012,'And she caught him by his garment, saying, Lie with me: and he left his garment in her hand, and fled, and got him out.');
+INSERT INTO t1(docid,words) VALUES(1039013,'And it came to pass, when she saw that he had left his garment in her hand, and was fled forth,');
+INSERT INTO t1(docid,words) VALUES(1039014,'That she called unto the men of her house, and spake unto them, saying, See, he hath brought in an Hebrew unto us to mock us; he came in unto me to lie with me, and I cried with a loud voice:');
+INSERT INTO t1(docid,words) VALUES(1039015,'And it came to pass, when he heard that I lifted up my voice and cried, that he left his garment with me, and fled, and got him out.');
+INSERT INTO t1(docid,words) VALUES(1039016,'And she laid up his garment by her, until his lord came home.');
+INSERT INTO t1(docid,words) VALUES(1039017,'And she spake unto him according to these words, saying, The Hebrew servant, which thou hast brought unto us, came in unto me to mock me:');
+INSERT INTO t1(docid,words) VALUES(1039018,'And it came to pass, as I lifted up my voice and cried, that he left his garment with me, and fled out.');
+INSERT INTO t1(docid,words) VALUES(1039019,'And it came to pass, when his master heard the words of his wife, which she spake unto him, saying, After this manner did thy servant to me; that his wrath was kindled.');
+INSERT INTO t1(docid,words) VALUES(1039020,'And Joseph''s master took him, and put him into the prison, a place where the king''s prisoners were bound: and he was there in the prison.');
+INSERT INTO t1(docid,words) VALUES(1039021,'But the LORD was with Joseph, and shewed him mercy, and gave him favour in the sight of the keeper of the prison.');
+INSERT INTO t1(docid,words) VALUES(1039022,'And the keeper of the prison committed to Joseph''s hand all the prisoners that were in the prison; and whatsoever they did there, he was the doer of it.');
+INSERT INTO t1(docid,words) VALUES(1039023,'The keeper of the prison looked not to any thing that was under his hand; because the LORD was with him, and that which he did, the LORD made it to prosper.');
+INSERT INTO t1(docid,words) VALUES(1040001,'And it came to pass after these things, that the butler of the king of Egypt and his baker had offended their lord the king of Egypt.');
+INSERT INTO t1(docid,words) VALUES(1040002,'And Pharaoh was wroth against two of his officers, against the chief of the butlers, and against the chief of the bakers.');
+INSERT INTO t1(docid,words) VALUES(1040003,'And he put them in ward in the house of the captain of the guard, into the prison, the place where Joseph was bound.');
+INSERT INTO t1(docid,words) VALUES(1040004,'And the captain of the guard charged Joseph with them, and he served them: and they continued a season in ward.');
+INSERT INTO t1(docid,words) VALUES(1040005,'And they dreamed a dream both of them, each man his dream in one night, each man according to the interpretation of his dream, the butler and the baker of the king of Egypt, which were bound in the prison.');
+INSERT INTO t1(docid,words) VALUES(1040006,'And Joseph came in unto them in the morning, and looked upon them, and, behold, they were sad.');
+INSERT INTO t1(docid,words) VALUES(1040007,'And he asked Pharaoh''s officers that were with him in the ward of his lord''s house, saying, Wherefore look ye so sadly to day?');
+INSERT INTO t1(docid,words) VALUES(1040008,'And they said unto him, We have dreamed a dream, and there is no interpreter of it. And Joseph said unto them, Do not interpretations belong to God? tell me them, I pray you.');
+INSERT INTO t1(docid,words) VALUES(1040009,'And the chief butler told his dream to Joseph, and said to him, In my dream, behold, a vine was before me;');
+INSERT INTO t1(docid,words) VALUES(1040010,'And in the vine were three branches: and it was as though it budded, and her blossoms shot forth; and the clusters thereof brought forth ripe grapes:');
+INSERT INTO t1(docid,words) VALUES(1040011,'And Pharaoh''s cup was in my hand: and I took the grapes, and pressed them into Pharaoh''s cup, and I gave the cup into Pharaoh''s hand.');
+INSERT INTO t1(docid,words) VALUES(1040012,'And Joseph said unto him, This is the interpretation of it: The three branches are three days:');
+INSERT INTO t1(docid,words) VALUES(1040013,'Yet within three days shall Pharaoh lift up thine head, and restore thee unto thy place: and thou shalt deliver Pharaoh''s cup into his hand, after the former manner when thou wast his butler.');
+INSERT INTO t1(docid,words) VALUES(1040014,'But think on me when it shall be well with thee, and shew kindness, I pray thee, unto me, and make mention of me unto Pharaoh, and bring me out of this house:');
+INSERT INTO t1(docid,words) VALUES(1040015,'For indeed I was stolen away out of the land of the Hebrews: and here also have I done nothing that they should put me into the dungeon.');
+INSERT INTO t1(docid,words) VALUES(1040016,'When the chief baker saw that the interpretation was good, he said unto Joseph, I also was in my dream, and, behold, I had three white baskets on my head:');
+INSERT INTO t1(docid,words) VALUES(1040017,'And in the uppermost basket there was of all manner of bakemeats for Pharaoh; and the birds did eat them out of the basket upon my head.');
+INSERT INTO t1(docid,words) VALUES(1040018,'And Joseph answered and said, This is the interpretation thereof: The three baskets are three days:');
+INSERT INTO t1(docid,words) VALUES(1040019,'Yet within three days shall Pharaoh lift up thy head from off thee, and shall hang thee on a tree; and the birds shall eat thy flesh from off thee.');
+INSERT INTO t1(docid,words) VALUES(1040020,'And it came to pass the third day, which was Pharaoh''s birthday, that he made a feast unto all his servants: and he lifted up the head of the chief butler and of the chief baker among his servants.');
+INSERT INTO t1(docid,words) VALUES(1040021,'And he restored the chief butler unto his butlership again; and he gave the cup into Pharaoh''s hand:');
+INSERT INTO t1(docid,words) VALUES(1040022,'But he hanged the chief baker: as Joseph had interpreted to them.');
+INSERT INTO t1(docid,words) VALUES(1040023,'Yet did not the chief butler remember Joseph, but forgat him.');
+INSERT INTO t1(docid,words) VALUES(1041001,'And it came to pass at the end of two full years, that Pharaoh dreamed: and, behold, he stood by the river.');
+INSERT INTO t1(docid,words) VALUES(1041002,'And, behold, there came up out of the river seven well favoured kine and fatfleshed; and they fed in a meadow.');
+INSERT INTO t1(docid,words) VALUES(1041003,'And, behold, seven other kine came up after them out of the river, ill favoured and leanfleshed; and stood by the other kine upon the brink of the river.');
+INSERT INTO t1(docid,words) VALUES(1041004,'And the ill favoured and leanfleshed kine did eat up the seven well favoured and fat kine. So Pharaoh awoke.');
+INSERT INTO t1(docid,words) VALUES(1041005,'And he slept and dreamed the second time: and, behold, seven ears of corn came up upon one stalk, rank and good.');
+INSERT INTO t1(docid,words) VALUES(1041006,'And, behold, seven thin ears and blasted with the east wind sprung up after them.');
+INSERT INTO t1(docid,words) VALUES(1041007,'And the seven thin ears devoured the seven rank and full ears. And Pharaoh awoke, and, behold, it was a dream.');
+INSERT INTO t1(docid,words) VALUES(1041008,'And it came to pass in the morning that his spirit was troubled; and he sent and called for all the magicians of Egypt, and all the wise men thereof: and Pharaoh told them his dream; but there was none that could interpret them unto Pharaoh.');
+INSERT INTO t1(docid,words) VALUES(1041009,'Then spake the chief butler unto Pharaoh, saying, I do remember my faults this day:');
+INSERT INTO t1(docid,words) VALUES(1041010,'Pharaoh was wroth with his servants, and put me in ward in the captain of the guard''s house, both me and the chief baker:');
+INSERT INTO t1(docid,words) VALUES(1041011,'And we dreamed a dream in one night, I and he; we dreamed each man according to the interpretation of his dream.');
+INSERT INTO t1(docid,words) VALUES(1041012,'And there was there with us a young man, an Hebrew, servant to the captain of the guard; and we told him, and he interpreted to us our dreams; to each man according to his dream he did interpret.');
+INSERT INTO t1(docid,words) VALUES(1041013,'And it came to pass, as he interpreted to us, so it was; me he restored unto mine office, and him he hanged.');
+INSERT INTO t1(docid,words) VALUES(1041014,'Then Pharaoh sent and called Joseph, and they brought him hastily out of the dungeon: and he shaved himself, and changed his raiment, and came in unto Pharaoh.');
+INSERT INTO t1(docid,words) VALUES(1041015,'And Pharaoh said unto Joseph, I have dreamed a dream, and there is none that can interpret it: and I have heard say of thee, that thou canst understand a dream to interpret it.');
+INSERT INTO t1(docid,words) VALUES(1041016,'And Joseph answered Pharaoh, saying, It is not in me: God shall give Pharaoh an answer of peace.');
+INSERT INTO t1(docid,words) VALUES(1041017,'And Pharaoh said unto Joseph, In my dream, behold, I stood upon the bank of the river:');
+INSERT INTO t1(docid,words) VALUES(1041018,'And, behold, there came up out of the river seven kine, fatfleshed and well favoured; and they fed in a meadow:');
+INSERT INTO t1(docid,words) VALUES(1041019,'And, behold, seven other kine came up after them, poor and very ill favoured and leanfleshed, such as I never saw in all the land of Egypt for badness:');
+INSERT INTO t1(docid,words) VALUES(1041020,'And the lean and the ill favoured kine did eat up the first seven fat kine:');
+INSERT INTO t1(docid,words) VALUES(1041021,'And when they had eaten them up, it could not be known that they had eaten them; but they were still ill favoured, as at the beginning. So I awoke.');
+INSERT INTO t1(docid,words) VALUES(1041022,'And I saw in my dream, and, behold, seven ears came up in one stalk, full and good:');
+INSERT INTO t1(docid,words) VALUES(1041023,'And, behold, seven ears, withered, thin, and blasted with the east wind, sprung up after them:');
+INSERT INTO t1(docid,words) VALUES(1041024,'And the thin ears devoured the seven good ears: and I told this unto the magicians; but there was none that could declare it to me.');
+INSERT INTO t1(docid,words) VALUES(1041025,'And Joseph said unto Pharaoh, The dream of Pharaoh is one: God hath shewed Pharaoh what he is about to do.');
+INSERT INTO t1(docid,words) VALUES(1041026,'The seven good kine are seven years; and the seven good ears are seven years: the dream is one.');
+INSERT INTO t1(docid,words) VALUES(1041027,'And the seven thin and ill favoured kine that came up after them are seven years; and the seven empty ears blasted with the east wind shall be seven years of famine.');
+INSERT INTO t1(docid,words) VALUES(1041028,'This is the thing which I have spoken unto Pharaoh: What God is about to do he sheweth unto Pharaoh.');
+INSERT INTO t1(docid,words) VALUES(1041029,'Behold, there come seven years of great plenty throughout all the land of Egypt:');
+INSERT INTO t1(docid,words) VALUES(1041030,'And there shall arise after them seven years of famine; and all the plenty shall be forgotten in the land of Egypt; and the famine shall consume the land;');
+INSERT INTO t1(docid,words) VALUES(1041031,'And the plenty shall not be known in the land by reason of that famine following; for it shall be very grievous.');
+INSERT INTO t1(docid,words) VALUES(1041032,'And for that the dream was doubled unto Pharaoh twice; it is because the thing is established by God, and God will shortly bring it to pass.');
+INSERT INTO t1(docid,words) VALUES(1041033,'Now therefore let Pharaoh look out a man discreet and wise, and set him over the land of Egypt.');
+INSERT INTO t1(docid,words) VALUES(1041034,'Let Pharaoh do this, and let him appoint officers over the land, and take up the fifth part of the land of Egypt in the seven plenteous years.');
+INSERT INTO t1(docid,words) VALUES(1041035,'And let them gather all the food of those good years that come, and lay up corn under the hand of Pharaoh, and let them keep food in the cities.');
+INSERT INTO t1(docid,words) VALUES(1041036,'And that food shall be for store to the land against the seven years of famine, which shall be in the land of Egypt; that the land perish not through the famine.');
+INSERT INTO t1(docid,words) VALUES(1041037,'And the thing was good in the eyes of Pharaoh, and in the eyes of all his servants.');
+INSERT INTO t1(docid,words) VALUES(1041038,'And Pharaoh said unto his servants, Can we find such a one as this is, a man in whom the Spirit of God is?');
+INSERT INTO t1(docid,words) VALUES(1041039,'And Pharaoh said unto Joseph, Forasmuch as God hath shewed thee all this, there is none so discreet and wise as thou art:');
+INSERT INTO t1(docid,words) VALUES(1041040,'Thou shalt be over my house, and according unto thy word shall all my people be ruled: only in the throne will I be greater than thou.');
+INSERT INTO t1(docid,words) VALUES(1041041,'And Pharaoh said unto Joseph, See, I have set thee over all the land of Egypt.');
+INSERT INTO t1(docid,words) VALUES(1041042,'And Pharaoh took off his ring from his hand, and put it upon Joseph''s hand, and arrayed him in vestures of fine linen, and put a gold chain about his neck;');
+INSERT INTO t1(docid,words) VALUES(1041043,'And he made him to ride in the second chariot which he had; and they cried before him, Bow the knee: and he made him ruler over all the land of Egypt.');
+INSERT INTO t1(docid,words) VALUES(1041044,'And Pharaoh said unto Joseph, I am Pharaoh, and without thee shall no man lift up his hand or foot in all the land of Egypt.');
+INSERT INTO t1(docid,words) VALUES(1041045,'And Pharaoh called Joseph''s name Zaphnathpaaneah; and he gave him to wife Asenath the daughter of Potipherah priest of On. And Joseph went out over all the land of Egypt.');
+INSERT INTO t1(docid,words) VALUES(1041046,'And Joseph was thirty years old when he stood before Pharaoh king of Egypt. And Joseph went out from the presence of Pharaoh, and went throughout all the land of Egypt.');
+INSERT INTO t1(docid,words) VALUES(1041047,'And in the seven plenteous years the earth brought forth by handfuls.');
+INSERT INTO t1(docid,words) VALUES(1041048,'And he gathered up all the food of the seven years, which were in the land of Egypt, and laid up the food in the cities: the food of the field, which was round about every city, laid he up in the same.');
+INSERT INTO t1(docid,words) VALUES(1041049,'And Joseph gathered corn as the sand of the sea, very much, until he left numbering; for it was without number.');
+INSERT INTO t1(docid,words) VALUES(1041050,'And unto Joseph were born two sons before the years of famine came, which Asenath the daughter of Potipherah priest of On bare unto him.');
+INSERT INTO t1(docid,words) VALUES(1041051,'And Joseph called the name of the firstborn Manasseh: For God, said he, hath made me forget all my toil, and all my father''s house.');
+INSERT INTO t1(docid,words) VALUES(1041052,'And the name of the second called he Ephraim: For God hath caused me to be fruitful in the land of my affliction.');
+INSERT INTO t1(docid,words) VALUES(1041053,'And the seven years of plenteousness, that was in the land of Egypt, were ended.');
+INSERT INTO t1(docid,words) VALUES(1041054,'And the seven years of dearth began to come, according as Joseph had said: and the dearth was in all lands; but in all the land of Egypt there was bread.');
+INSERT INTO t1(docid,words) VALUES(1041055,'And when all the land of Egypt was famished, the people cried to Pharaoh for bread: and Pharaoh said unto all the Egyptians, Go unto Joseph; what he saith to you, do.');
+INSERT INTO t1(docid,words) VALUES(1041056,'And the famine was over all the face of the earth: and Joseph opened all the storehouses, and sold unto the Egyptians; and the famine waxed sore in the land of Egypt.');
+INSERT INTO t1(docid,words) VALUES(1041057,'And all countries came into Egypt to Joseph for to buy corn; because that the famine was so sore in all lands.');
+INSERT INTO t1(docid,words) VALUES(1042001,'Now when Jacob saw that there was corn in Egypt, Jacob said unto his sons, Why do ye look one upon another?');
+INSERT INTO t1(docid,words) VALUES(1042002,'And he said, Behold, I have heard that there is corn in Egypt: get you down thither, and buy for us from thence; that we may live, and not die.');
+INSERT INTO t1(docid,words) VALUES(1042003,'And Joseph''s ten brethren went down to buy corn in Egypt.');
+INSERT INTO t1(docid,words) VALUES(1042004,'But Benjamin, Joseph''s brother, Jacob sent not with his brethren; for he said, Lest peradventure mischief befall him.');
+INSERT INTO t1(docid,words) VALUES(1042005,'And the sons of Israel came to buy corn among those that came: for the famine was in the land of Canaan.');
+INSERT INTO t1(docid,words) VALUES(1042006,'And Joseph was the governor over the land, and he it was that sold to all the people of the land: and Joseph''s brethren came, and bowed down themselves before him with their faces to the earth.');
+INSERT INTO t1(docid,words) VALUES(1042007,'And Joseph saw his brethren, and he knew them, but made himself strange unto them, and spake roughly unto them; and he said unto them, Whence come ye? And they said, From the land of Canaan to buy food.');
+INSERT INTO t1(docid,words) VALUES(1042008,'And Joseph knew his brethren, but they knew not him.');
+INSERT INTO t1(docid,words) VALUES(1042009,'And Joseph remembered the dreams which he dreamed of them, and said unto them, Ye are spies; to see the nakedness of the land ye are come.');
+INSERT INTO t1(docid,words) VALUES(1042010,'And they said unto him, Nay, my lord, but to buy food are thy servants come.');
+INSERT INTO t1(docid,words) VALUES(1042011,'We are all one man''s sons; we are true men, thy servants are no spies.');
+INSERT INTO t1(docid,words) VALUES(1042012,'And he said unto them, Nay, but to see the nakedness of the land ye are come.');
+INSERT INTO t1(docid,words) VALUES(1042013,'And they said, Thy servants are twelve brethren, the sons of one man in the land of Canaan; and, behold, the youngest is this day with our father, and one is not.');
+INSERT INTO t1(docid,words) VALUES(1042014,'And Joseph said unto them, That is it that I spake unto you, saying, Ye are spies:');
+INSERT INTO t1(docid,words) VALUES(1042015,'Hereby ye shall be proved: By the life of Pharaoh ye shall not go forth hence, except your youngest brother come hither.');
+INSERT INTO t1(docid,words) VALUES(1042016,'Send one of you, and let him fetch your brother, and ye shall be kept in prison, that your words may be proved, whether there be any truth in you: or else by the life of Pharaoh surely ye are spies.');
+INSERT INTO t1(docid,words) VALUES(1042017,'And he put them all together into ward three days.');
+INSERT INTO t1(docid,words) VALUES(1042018,'And Joseph said unto them the third day, This do, and live; for I fear God:');
+INSERT INTO t1(docid,words) VALUES(1042019,'If ye be true men, let one of your brethren be bound in the house of your prison: go ye, carry corn for the famine of your houses:');
+INSERT INTO t1(docid,words) VALUES(1042020,'But bring your youngest brother unto me; so shall your words be verified, and ye shall not die. And they did so.');
+INSERT INTO t1(docid,words) VALUES(1042021,'And they said one to another, We are verily guilty concerning our brother, in that we saw the anguish of his soul, when he besought us, and we would not hear; therefore is this distress come upon us.');
+INSERT INTO t1(docid,words) VALUES(1042022,'And Reuben answered them, saying, Spake I not unto you, saying, Do not sin against the child; and ye would not hear? therefore, behold, also his blood is required.');
+INSERT INTO t1(docid,words) VALUES(1042023,'And they knew not that Joseph understood them; for he spake unto them by an interpreter.');
+INSERT INTO t1(docid,words) VALUES(1042024,'And he turned himself about from them, and wept; and returned to them again, and communed with them, and took from them Simeon, and bound him before their eyes.');
+INSERT INTO t1(docid,words) VALUES(1042025,'Then Joseph commanded to fill their sacks with corn, and to restore every man''s money into his sack, and to give them provision for the way: and thus did he unto them.');
+INSERT INTO t1(docid,words) VALUES(1042026,'And they laded their asses with the corn, and departed thence.');
+INSERT INTO t1(docid,words) VALUES(1042027,'And as one of them opened his sack to give his ass provender in the inn, he espied his money; for, behold, it was in his sack''s mouth.');
+INSERT INTO t1(docid,words) VALUES(1042028,'And he said unto his brethren, My money is restored; and, lo, it is even in my sack: and their heart failed them, and they were afraid, saying one to another, What is this that God hath done unto us?');
+INSERT INTO t1(docid,words) VALUES(1042029,'And they came unto Jacob their father unto the land of Canaan, and told him all that befell unto them; saying,');
+INSERT INTO t1(docid,words) VALUES(1042030,'The man, who is the lord of the land, spake roughly to us, and took us for spies of the country.');
+INSERT INTO t1(docid,words) VALUES(1042031,'And we said unto him, We are true men; we are no spies:');
+INSERT INTO t1(docid,words) VALUES(1042032,'We be twelve brethren, sons of our father; one is not, and the youngest is this day with our father in the land of Canaan.');
+INSERT INTO t1(docid,words) VALUES(1042033,'And the man, the lord of the country, said unto us, Hereby shall I know that ye are true men; leave one of your brethren here with me, and take food for the famine of your households, and be gone:');
+INSERT INTO t1(docid,words) VALUES(1042034,'And bring your youngest brother unto me: then shall I know that ye are no spies, but that ye are true men: so will I deliver you your brother, and ye shall traffick in the land.');
+INSERT INTO t1(docid,words) VALUES(1042035,'And it came to pass as they emptied their sacks, that, behold, every man''s bundle of money was in his sack: and when both they and their father saw the bundles of money, they were afraid.');
+INSERT INTO t1(docid,words) VALUES(1042036,'And Jacob their father said unto them, Me have ye bereaved of my children: Joseph is not, and Simeon is not, and ye will take Benjamin away: all these things are against me.');
+INSERT INTO t1(docid,words) VALUES(1042037,'And Reuben spake unto his father, saying, Slay my two sons, if I bring him not to thee: deliver him into my hand, and I will bring him to thee again.');
+INSERT INTO t1(docid,words) VALUES(1042038,'And he said, My son shall not go down with you; for his brother is dead, and he is left alone: if mischief befall him by the way in the which ye go, then shall ye bring down my gray hairs with sorrow to the grave.');
+INSERT INTO t1(docid,words) VALUES(1043001,'And the famine was sore in the land.');
+INSERT INTO t1(docid,words) VALUES(1043002,'And it came to pass, when they had eaten up the corn which they had brought out of Egypt, their father said unto them, Go again, buy us a little food.');
+INSERT INTO t1(docid,words) VALUES(1043003,'And Judah spake unto him, saying, The man did solemnly protest unto us, saying, Ye shall not see my face, except your brother be with you.');
+INSERT INTO t1(docid,words) VALUES(1043004,'If thou wilt send our brother with us, we will go down and buy thee food:');
+INSERT INTO t1(docid,words) VALUES(1043005,'But if thou wilt not send him, we will not go down: for the man said unto us, Ye shall not see my face, except your brother be with you.');
+INSERT INTO t1(docid,words) VALUES(1043006,'And Israel said, Wherefore dealt ye so ill with me, as to tell the man whether ye had yet a brother?');
+INSERT INTO t1(docid,words) VALUES(1043007,'And they said, The man asked us straitly of our state, and of our kindred, saying, Is your father yet alive? have ye another brother? and we told him according to the tenor of these words: could we certainly know that he would say, Bring your brother down?');
+INSERT INTO t1(docid,words) VALUES(1043008,'And Judah said unto Israel his father, Send the lad with me, and we will arise and go; that we may live, and not die, both we, and thou, and also our little ones.');
+INSERT INTO t1(docid,words) VALUES(1043009,'I will be surety for him; of my hand shalt thou require him: if I bring him not unto thee, and set him before thee, then let me bear the blame for ever:');
+INSERT INTO t1(docid,words) VALUES(1043010,'For except we had lingered, surely now we had returned this second time.');
+INSERT INTO t1(docid,words) VALUES(1043011,'And their father Israel said unto them, If it must be so now, do this; take of the best fruits in the land in your vessels, and carry down the man a present, a little balm, and a little honey, spices, and myrrh, nuts, and almonds:');
+INSERT INTO t1(docid,words) VALUES(1043012,'And take double money in your hand; and the money that was brought again in the mouth of your sacks, carry it again in your hand; peradventure it was an oversight:');
+INSERT INTO t1(docid,words) VALUES(1043013,'Take also your brother, and arise, go again unto the man:');
+INSERT INTO t1(docid,words) VALUES(1043014,'And God Almighty give you mercy before the man, that he may send away your other brother, and Benjamin. If I be bereaved of my children, I am bereaved.');
+INSERT INTO t1(docid,words) VALUES(1043015,'And the men took that present, and they took double money in their hand and Benjamin; and rose up, and went down to Egypt, and stood before Joseph.');
+INSERT INTO t1(docid,words) VALUES(1043016,'And when Joseph saw Benjamin with them, he said to the ruler of his house, Bring these men home, and slay, and make ready; for these men shall dine with me at noon.');
+INSERT INTO t1(docid,words) VALUES(1043017,'And the man did as Joseph bade; and the man brought the men into Joseph''s house.');
+INSERT INTO t1(docid,words) VALUES(1043018,'And the men were afraid, because they were brought into Joseph''s house; and they said, Because of the money that was returned in our sacks at the first time are we brought in; that he may seek occasion against us, and fall upon us, and take us for bondmen, and our asses.');
+INSERT INTO t1(docid,words) VALUES(1043019,'And they came near to the steward of Joseph''s house, and they communed with him at the door of the house,');
+INSERT INTO t1(docid,words) VALUES(1043020,'And said, O sir, we came indeed down at the first time to buy food:');
+INSERT INTO t1(docid,words) VALUES(1043021,'And it came to pass, when we came to the inn, that we opened our sacks, and, behold, every man''s money was in the mouth of his sack, our money in full weight: and we have brought it again in our hand.');
+INSERT INTO t1(docid,words) VALUES(1043022,'And other money have we brought down in our hands to buy food: we cannot tell who put our money in our sacks.');
+INSERT INTO t1(docid,words) VALUES(1043023,'And he said, Peace be to you, fear not: your God, and the God of your father, hath given you treasure in your sacks: I had your money. And he brought Simeon out unto them.');
+INSERT INTO t1(docid,words) VALUES(1043024,'And the man brought the men into Joseph''s house, and gave them water, and they washed their feet; and he gave their asses provender.');
+INSERT INTO t1(docid,words) VALUES(1043025,'And they made ready the present against Joseph came at noon: for they heard that they should eat bread there.');
+INSERT INTO t1(docid,words) VALUES(1043026,'And when Joseph came home, they brought him the present which was in their hand into the house, and bowed themselves to him to the earth.');
+INSERT INTO t1(docid,words) VALUES(1043027,'And he asked them of their welfare, and said, Is your father well, the old man of whom ye spake? Is he yet alive?');
+INSERT INTO t1(docid,words) VALUES(1043028,'And they answered, Thy servant our father is in good health, he is yet alive. And they bowed down their heads, and made obeisance.');
+INSERT INTO t1(docid,words) VALUES(1043029,'And he lifted up his eyes, and saw his brother Benjamin, his mother''s son, and said, Is this your younger brother, of whom ye spake unto me? And he said, God be gracious unto thee, my son.');
+INSERT INTO t1(docid,words) VALUES(1043030,'And Joseph made haste; for his bowels did yearn upon his brother: and he sought where to weep; and he entered into his chamber, and wept there.');
+INSERT INTO t1(docid,words) VALUES(1043031,'And he washed his face, and went out, and refrained himself, and said, Set on bread.');
+INSERT INTO t1(docid,words) VALUES(1043032,'And they set on for him by himself, and for them by themselves, and for the Egyptians, which did eat with him, by themselves: because the Egyptians might not eat bread with the Hebrews; for that is an abomination unto the Egyptians.');
+INSERT INTO t1(docid,words) VALUES(1043033,'And they sat before him, the firstborn according to his birthright, and the youngest according to his youth: and the men marvelled one at another.');
+INSERT INTO t1(docid,words) VALUES(1043034,'And he took and sent messes unto them from before him: but Benjamin''s mess was five times so much as any of their''s. And they drank, and were merry with him.');
+INSERT INTO t1(docid,words) VALUES(1044001,'And he commanded the steward of his house, saying, Fill the men''s sacks with food, as much as they can carry, and put every man''s money in his sack''s mouth.');
+INSERT INTO t1(docid,words) VALUES(1044002,'And put my cup, the silver cup, in the sack''s mouth of the youngest, and his corn money. And he did according to the word that Joseph had spoken.');
+INSERT INTO t1(docid,words) VALUES(1044003,'As soon as the morning was light, the men were sent away, they and their asses.');
+INSERT INTO t1(docid,words) VALUES(1044004,'And when they were gone out of the city, and not yet far off, Joseph said unto his steward, Up, follow after the men; and when thou dost overtake them, say unto them, Wherefore have ye rewarded evil for good?');
+INSERT INTO t1(docid,words) VALUES(1044005,'Is not this it in which my lord drinketh, and whereby indeed he divineth? ye have done evil in so doing.');
+INSERT INTO t1(docid,words) VALUES(1044006,'And he overtook them, and he spake unto them these same words.');
+INSERT INTO t1(docid,words) VALUES(1044007,'And they said unto him, Wherefore saith my lord these words? God forbid that thy servants should do according to this thing:');
+INSERT INTO t1(docid,words) VALUES(1044008,'Behold, the money, which we found in our sacks'' mouths, we brought again unto thee out of the land of Canaan: how then should we steal out of thy lord''s house silver or gold?');
+INSERT INTO t1(docid,words) VALUES(1044009,'With whomsoever of thy servants it be found, both let him die, and we also will be my lord''s bondmen.');
+INSERT INTO t1(docid,words) VALUES(1044010,'And he said, Now also let it be according unto your words: he with whom it is found shall be my servant; and ye shall be blameless.');
+INSERT INTO t1(docid,words) VALUES(1044011,'Then they speedily took down every man his sack to the ground, and opened every man his sack.');
+INSERT INTO t1(docid,words) VALUES(1044012,'And he searched, and began at the eldest, and left at the youngest: and the cup was found in Benjamin''s sack.');
+INSERT INTO t1(docid,words) VALUES(1044013,'Then they rent their clothes, and laded every man his ass, and returned to the city.');
+INSERT INTO t1(docid,words) VALUES(1044014,'And Judah and his brethren came to Joseph''s house; for he was yet there: and they fell before him on the ground.');
+INSERT INTO t1(docid,words) VALUES(1044015,'And Joseph said unto them, What deed is this that ye have done? wot ye not that such a man as I can certainly divine?');
+INSERT INTO t1(docid,words) VALUES(1044016,'And Judah said, What shall we say unto my lord? what shall we speak? or how shall we clear ourselves? God hath found out the iniquity of thy servants: behold, we are my lord''s servants, both we, and he also with whom the cup is found.');
+INSERT INTO t1(docid,words) VALUES(1044017,'And he said, God forbid that I should do so: but the man in whose hand the cup is found, he shall be my servant; and as for you, get you up in peace unto your father.');
+INSERT INTO t1(docid,words) VALUES(1044018,'Then Judah came near unto him, and said, Oh my lord, let thy servant, I pray thee, speak a word in my lord''s ears, and let not thine anger burn against thy servant: for thou art even as Pharaoh.');
+INSERT INTO t1(docid,words) VALUES(1044019,'My lord asked his servants, saying, Have ye a father, or a brother?');
+INSERT INTO t1(docid,words) VALUES(1044020,'And we said unto my lord, We have a father, an old man, and a child of his old age, a little one; and his brother is dead, and he alone is left of his mother, and his father loveth him.');
+INSERT INTO t1(docid,words) VALUES(1044021,'And thou saidst unto thy servants, Bring him down unto me, that I may set mine eyes upon him.');
+INSERT INTO t1(docid,words) VALUES(1044022,'And we said unto my lord, The lad cannot leave his father: for if he should leave his father, his father would die.');
+INSERT INTO t1(docid,words) VALUES(1044023,'And thou saidst unto thy servants, Except your youngest brother come down with you, ye shall see my face no more.');
+INSERT INTO t1(docid,words) VALUES(1044024,'And it came to pass when we came up unto thy servant my father, we told him the words of my lord.');
+INSERT INTO t1(docid,words) VALUES(1044025,'And our father said, Go again, and buy us a little food.');
+INSERT INTO t1(docid,words) VALUES(1044026,'And we said, We cannot go down: if our youngest brother be with us, then will we go down: for we may not see the man''s face, except our youngest brother be with us.');
+INSERT INTO t1(docid,words) VALUES(1044027,'And thy servant my father said unto us, Ye know that my wife bare me two sons:');
+INSERT INTO t1(docid,words) VALUES(1044028,'And the one went out from me, and I said, Surely he is torn in pieces; and I saw him not since:');
+INSERT INTO t1(docid,words) VALUES(1044029,'And if ye take this also from me, and mischief befall him, ye shall bring down my gray hairs with sorrow to the grave.');
+INSERT INTO t1(docid,words) VALUES(1044030,'Now therefore when I come to thy servant my father, and the lad be not with us; seeing that his life is bound up in the lad''s life;');
+INSERT INTO t1(docid,words) VALUES(1044031,'It shall come to pass, when he seeth that the lad is not with us, that he will die: and thy servants shall bring down the gray hairs of thy servant our father with sorrow to the grave.');
+INSERT INTO t1(docid,words) VALUES(1044032,'For thy servant became surety for the lad unto my father, saying, If I bring him not unto thee, then I shall bear the blame to my father for ever.');
+INSERT INTO t1(docid,words) VALUES(1044033,'Now therefore, I pray thee, let thy servant abide instead of the lad a bondman to my lord; and let the lad go up with his brethren.');
+INSERT INTO t1(docid,words) VALUES(1044034,'For how shall I go up to my father, and the lad be not with me? lest peradventure I see the evil that shall come on my father.');
+INSERT INTO t1(docid,words) VALUES(1045001,'Then Joseph could not refrain himself before all them that stood by him; and he cried, Cause every man to go out from me. And there stood no man with him, while Joseph made himself known unto his brethren.');
+INSERT INTO t1(docid,words) VALUES(1045002,'And he wept aloud: and the Egyptians and the house of Pharaoh heard.');
+INSERT INTO t1(docid,words) VALUES(1045003,'And Joseph said unto his brethren, I am Joseph; doth my father yet live? And his brethren could not answer him; for they were troubled at his presence.');
+INSERT INTO t1(docid,words) VALUES(1045004,'And Joseph said unto his brethren, Come near to me, I pray you. And they came near. And he said, I am Joseph your brother, whom ye sold into Egypt.');
+INSERT INTO t1(docid,words) VALUES(1045005,'Now therefore be not grieved, nor angry with yourselves, that ye sold me hither: for God did send me before you to preserve life.');
+INSERT INTO t1(docid,words) VALUES(1045006,'For these two years hath the famine been in the land: and yet there are five years, in the which there shall neither be earing nor harvest.');
+INSERT INTO t1(docid,words) VALUES(1045007,'And God sent me before you to preserve you a posterity in the earth, and to save your lives by a great deliverance.');
+INSERT INTO t1(docid,words) VALUES(1045008,'So now it was not you that sent me hither, but God: and he hath made me a father to Pharaoh, and lord of all his house, and a ruler throughout all the land of Egypt.');
+INSERT INTO t1(docid,words) VALUES(1045009,'Haste ye, and go up to my father, and say unto him, Thus saith thy son Joseph, God hath made me lord of all Egypt: come down unto me, tarry not:');
+INSERT INTO t1(docid,words) VALUES(1045010,'And thou shalt dwell in the land of Goshen, and thou shalt be near unto me, thou, and thy children, and thy children''s children, and thy flocks, and thy herds, and all that thou hast:');
+INSERT INTO t1(docid,words) VALUES(1045011,'And there will I nourish thee; for yet there are five years of famine; lest thou, and thy household, and all that thou hast, come to poverty.');
+INSERT INTO t1(docid,words) VALUES(1045012,'And, behold, your eyes see, and the eyes of my brother Benjamin, that it is my mouth that speaketh unto you.');
+INSERT INTO t1(docid,words) VALUES(1045013,'And ye shall tell my father of all my glory in Egypt, and of all that ye have seen; and ye shall haste and bring down my father hither.');
+INSERT INTO t1(docid,words) VALUES(1045014,'And he fell upon his brother Benjamin''s neck, and wept; and Benjamin wept upon his neck.');
+INSERT INTO t1(docid,words) VALUES(1045015,'Moreover he kissed all his brethren, and wept upon them: and after that his brethren talked with him.');
+INSERT INTO t1(docid,words) VALUES(1045016,'And the fame thereof was heard in Pharaoh''s house, saying, Joseph''s brethren are come: and it pleased Pharaoh well, and his servants.');
+INSERT INTO t1(docid,words) VALUES(1045017,'And Pharaoh said unto Joseph, Say unto thy brethren, This do ye; lade your beasts, and go, get you unto the land of Canaan;');
+INSERT INTO t1(docid,words) VALUES(1045018,'And take your father and your households, and come unto me: and I will give you the good of the land of Egypt, and ye shall eat the fat of the land.');
+INSERT INTO t1(docid,words) VALUES(1045019,'Now thou art commanded, this do ye; take you wagons out of the land of Egypt for your little ones, and for your wives, and bring your father, and come.');
+INSERT INTO t1(docid,words) VALUES(1045020,'Also regard not your stuff; for the good of all the land of Egypt is your''s.');
+INSERT INTO t1(docid,words) VALUES(1045021,'And the children of Israel did so: and Joseph gave them wagons, according to the commandment of Pharaoh, and gave them provision for the way.');
+INSERT INTO t1(docid,words) VALUES(1045022,'To all of them he gave each man changes of raiment; but to Benjamin he gave three hundred pieces of silver, and five changes of raiment.');
+INSERT INTO t1(docid,words) VALUES(1045023,'And to his father he sent after this manner; ten asses laden with the good things of Egypt, and ten she asses laden with corn and bread and meat for his father by the way.');
+INSERT INTO t1(docid,words) VALUES(1045024,'So he sent his brethren away, and they departed: and he said unto them, See that ye fall not out by the way.');
+INSERT INTO t1(docid,words) VALUES(1045025,'And they went up out of Egypt, and came into the land of Canaan unto Jacob their father,');
+INSERT INTO t1(docid,words) VALUES(1045026,'And told him, saying, Joseph is yet alive, and he is governor over all the land of Egypt. And Jacob''s heart fainted, for he believed them not.');
+INSERT INTO t1(docid,words) VALUES(1045027,'And they told him all the words of Joseph, which he had said unto them: and when he saw the wagons which Joseph had sent to carry him, the spirit of Jacob their father revived:');
+INSERT INTO t1(docid,words) VALUES(1045028,'And Israel said, It is enough; Joseph my son is yet alive: I will go and see him before I die.');
+INSERT INTO t1(docid,words) VALUES(1046001,'And Israel took his journey with all that he had, and came to Beersheba, and offered sacrifices unto the God of his father Isaac.');
+INSERT INTO t1(docid,words) VALUES(1046002,'And God spake unto Israel in the visions of the night, and said, Jacob, Jacob. And he said, Here am I.');
+INSERT INTO t1(docid,words) VALUES(1046003,'And he said, I am God, the God of thy father: fear not to go down into Egypt; for I will there make of thee a great nation:');
+INSERT INTO t1(docid,words) VALUES(1046004,'I will go down with thee into Egypt; and I will also surely bring thee up again: and Joseph shall put his hand upon thine eyes.');
+INSERT INTO t1(docid,words) VALUES(1046005,'And Jacob rose up from Beersheba: and the sons of Israel carried Jacob their father, and their little ones, and their wives, in the wagons which Pharaoh had sent to carry him.');
+INSERT INTO t1(docid,words) VALUES(1046006,'And they took their cattle, and their goods, which they had gotten in the land of Canaan, and came into Egypt, Jacob, and all his seed with him:');
+INSERT INTO t1(docid,words) VALUES(1046007,'His sons, and his sons'' sons with him, his daughters, and his sons'' daughters, and all his seed brought he with him into Egypt.');
+INSERT INTO t1(docid,words) VALUES(1046008,'And these are the names of the children of Israel, which came into Egypt, Jacob and his sons: Reuben, Jacob''s firstborn.');
+INSERT INTO t1(docid,words) VALUES(1046009,'And the sons of Reuben; Hanoch, and Phallu, and Hezron, and Carmi.');
+INSERT INTO t1(docid,words) VALUES(1046010,'And the sons of Simeon; Jemuel, and Jamin, and Ohad, and Jachin, and Zohar, and Shaul the son of a Canaanitish woman.');
+INSERT INTO t1(docid,words) VALUES(1046011,'And the sons of Levi; Gershon, Kohath, and Merari.');
+INSERT INTO t1(docid,words) VALUES(1046012,'And the sons of Judah; Er, and Onan, and Shelah, and Pharez, and Zarah: but Er and Onan died in the land of Canaan. And the sons of Pharez were Hezron and Hamul.');
+INSERT INTO t1(docid,words) VALUES(1046013,'And the sons of Issachar; Tola, and Phuvah, and Job, and Shimron.');
+INSERT INTO t1(docid,words) VALUES(1046014,'And the sons of Zebulun; Sered, and Elon, and Jahleel.');
+INSERT INTO t1(docid,words) VALUES(1046015,'These be the sons of Leah, which she bare unto Jacob in Padanaram, with his daughter Dinah: all the souls of his sons and his daughters were thirty and three.');
+INSERT INTO t1(docid,words) VALUES(1046016,'And the sons of Gad; Ziphion, and Haggi, Shuni, and Ezbon, Eri, and Arodi, and Areli.');
+INSERT INTO t1(docid,words) VALUES(1046017,'And the sons of Asher; Jimnah, and Ishuah, and Isui, and Beriah, and Serah their sister: and the sons of Beriah; Heber, and Malchiel.');
+INSERT INTO t1(docid,words) VALUES(1046018,'These are the sons of Zilpah, whom Laban gave to Leah his daughter, and these she bare unto Jacob, even sixteen souls.');
+INSERT INTO t1(docid,words) VALUES(1046019,'The sons of Rachel Jacob''s wife; Joseph, and Benjamin.');
+INSERT INTO t1(docid,words) VALUES(1046020,'And unto Joseph in the land of Egypt were born Manasseh and Ephraim, which Asenath the daughter of Potipherah priest of On bare unto him.');
+INSERT INTO t1(docid,words) VALUES(1046021,'And the sons of Benjamin were Belah, and Becher, and Ashbel, Gera, and Naaman, Ehi, and Rosh, Muppim, and Huppim, and Ard.');
+INSERT INTO t1(docid,words) VALUES(1046022,'These are the sons of Rachel, which were born to Jacob: all the souls were fourteen.');
+INSERT INTO t1(docid,words) VALUES(1046023,'And the sons of Dan; Hushim.');
+INSERT INTO t1(docid,words) VALUES(1046024,'And the sons of Naphtali; Jahzeel, and Guni, and Jezer, and Shillem.');
+INSERT INTO t1(docid,words) VALUES(1046025,'These are the sons of Bilhah, which Laban gave unto Rachel his daughter, and she bare these unto Jacob: all the souls were seven.');
+INSERT INTO t1(docid,words) VALUES(1046026,'All the souls that came with Jacob into Egypt, which came out of his loins, besides Jacob''s sons'' wives, all the souls were threescore and six;');
+INSERT INTO t1(docid,words) VALUES(1046027,'And the sons of Joseph, which were born him in Egypt, were two souls: all the souls of the house of Jacob, which came into Egypt, were threescore and ten.');
+INSERT INTO t1(docid,words) VALUES(1046028,'And he sent Judah before him unto Joseph, to direct his face unto Goshen; and they came into the land of Goshen.');
+INSERT INTO t1(docid,words) VALUES(1046029,'And Joseph made ready his chariot, and went up to meet Israel his father, to Goshen, and presented himself unto him; and he fell on his neck, and wept on his neck a good while.');
+INSERT INTO t1(docid,words) VALUES(1046030,'And Israel said unto Joseph, Now let me die, since I have seen thy face, because thou art yet alive.');
+INSERT INTO t1(docid,words) VALUES(1046031,'And Joseph said unto his brethren, and unto his father''s house, I will go up, and shew Pharaoh, and say unto him, My brethren, and my father''s house, which were in the land of Canaan, are come unto me;');
+INSERT INTO t1(docid,words) VALUES(1046032,'And the men are shepherds, for their trade hath been to feed cattle; and they have brought their flocks, and their herds, and all that they have.');
+INSERT INTO t1(docid,words) VALUES(1046033,'And it shall come to pass, when Pharaoh shall call you, and shall say, What is your occupation?');
+INSERT INTO t1(docid,words) VALUES(1046034,'That ye shall say, Thy servants'' trade hath been about cattle from our youth even until now, both we, and also our fathers: that ye may dwell in the land of Goshen; for every shepherd is an abomination unto the Egyptians.');
+INSERT INTO t1(docid,words) VALUES(1047001,'Then Joseph came and told Pharaoh, and said, My father and my brethren, and their flocks, and their herds, and all that they have, are come out of the land of Canaan; and, behold, they are in the land of Goshen.');
+INSERT INTO t1(docid,words) VALUES(1047002,'And he took some of his brethren, even five men, and presented them unto Pharaoh.');
+INSERT INTO t1(docid,words) VALUES(1047003,'And Pharaoh said unto his brethren, What is your occupation? And they said unto Pharaoh, Thy servants are shepherds, both we, and also our fathers.');
+INSERT INTO t1(docid,words) VALUES(1047004,'They said morever unto Pharaoh, For to sojourn in the land are we come; for thy servants have no pasture for their flocks; for the famine is sore in the land of Canaan: now therefore, we pray thee, let thy servants dwell in the land of Goshen.');
+INSERT INTO t1(docid,words) VALUES(1047005,'And Pharaoh spake unto Joseph, saying, Thy father and thy brethren are come unto thee:');
+INSERT INTO t1(docid,words) VALUES(1047006,'The land of Egypt is before thee; in the best of the land make thy father and brethren to dwell; in the land of Goshen let them dwell: and if thou knowest any men of activity among them, then make them rulers over my cattle.');
+INSERT INTO t1(docid,words) VALUES(1047007,'And Joseph brought in Jacob his father, and set him before Pharaoh: and Jacob blessed Pharaoh.');
+INSERT INTO t1(docid,words) VALUES(1047008,'And Pharaoh said unto Jacob, How old art thou?');
+INSERT INTO t1(docid,words) VALUES(1047009,'And Jacob said unto Pharaoh, The days of the years of my pilgrimage are an hundred and thirty years: few and evil have the days of the years of my life been, and have not attained unto the days of the years of the life of my fathers in the days of their pilgrimage.');
+INSERT INTO t1(docid,words) VALUES(1047010,'And Jacob blessed Pharaoh, and went out from before Pharaoh.');
+INSERT INTO t1(docid,words) VALUES(1047011,'And Joseph placed his father and his brethren, and gave them a possession in the land of Egypt, in the best of the land, in the land of Rameses, as Pharaoh had commanded.');
+INSERT INTO t1(docid,words) VALUES(1047012,'And Joseph nourished his father, and his brethren, and all his father''s household, with bread, according to their families.');
+INSERT INTO t1(docid,words) VALUES(1047013,'And there was no bread in all the land; for the famine was very sore, so that the land of Egypt and all the land of Canaan fainted by reason of the famine.');
+INSERT INTO t1(docid,words) VALUES(1047014,'And Joseph gathered up all the money that was found in the land of Egypt, and in the land of Canaan, for the corn which they bought: and Joseph brought the money into Pharaoh''s house.');
+INSERT INTO t1(docid,words) VALUES(1047015,'And when money failed in the land of Egypt, and in the land of Canaan, all the Egyptians came unto Joseph, and said, Give us bread: for why should we die in thy presence? for the money faileth.');
+INSERT INTO t1(docid,words) VALUES(1047016,'And Joseph said, Give your cattle; and I will give you for your cattle, if money fail.');
+INSERT INTO t1(docid,words) VALUES(1047017,'And they brought their cattle unto Joseph: and Joseph gave them bread in exchange for horses, and for the flocks, and for the cattle of the herds, and for the asses: and he fed them with bread for all their cattle for that year.');
+INSERT INTO t1(docid,words) VALUES(1047018,'When that year was ended, they came unto him the second year, and said unto him, We will not hide it from my lord, how that our money is spent; my lord also hath our herds of cattle; there is not ought left in the sight of my lord, but our bodies, and our lands:');
+INSERT INTO t1(docid,words) VALUES(1047019,'Wherefore shall we die before thine eyes, both we and our land? buy us and our land for bread, and we and our land will be servants unto Pharaoh: and give us seed, that we may live, and not die, that the land be not desolate.');
+INSERT INTO t1(docid,words) VALUES(1047020,'And Joseph bought all the land of Egypt for Pharaoh; for the Egyptians sold every man his field, because the famine prevailed over them: so the land became Pharaoh''s.');
+INSERT INTO t1(docid,words) VALUES(1047021,'And as for the people, he removed them to cities from one end of the borders of Egypt even to the other end thereof.');
+INSERT INTO t1(docid,words) VALUES(1047022,'Only the land of the priests bought he not; for the priests had a portion assigned them of Pharaoh, and did eat their portion which Pharaoh gave them: wherefore they sold not their lands.');
+INSERT INTO t1(docid,words) VALUES(1047023,'Then Joseph said unto the people, Behold, I have bought you this day and your land for Pharaoh: lo, here is seed for you, and ye shall sow the land.');
+INSERT INTO t1(docid,words) VALUES(1047024,'And it shall come to pass in the increase, that ye shall give the fifth part unto Pharaoh, and four parts shall be your own, for seed of the field, and for your food, and for them of your households, and for food for your little ones.');
+INSERT INTO t1(docid,words) VALUES(1047025,'And they said, Thou hast saved our lives: let us find grace in the sight of my lord, and we will be Pharaoh''s servants.');
+INSERT INTO t1(docid,words) VALUES(1047026,'And Joseph made it a law over the land of Egypt unto this day, that Pharaoh should have the fifth part, except the land of the priests only, which became not Pharaoh''s.');
+INSERT INTO t1(docid,words) VALUES(1047027,'And Israel dwelt in the land of Egypt, in the country of Goshen; and they had possessions therein, and grew, and multiplied exceedingly.');
+INSERT INTO t1(docid,words) VALUES(1047028,'And Jacob lived in the land of Egypt seventeen years: so the whole age of Jacob was an hundred forty and seven years.');
+INSERT INTO t1(docid,words) VALUES(1047029,'And the time drew nigh that Israel must die: and he called his son Joseph, and said unto him, If now I have found grace in thy sight, put, I pray thee, thy hand under my thigh, and deal kindly and truly with me; bury me not, I pray thee, in Egypt:');
+INSERT INTO t1(docid,words) VALUES(1047030,'But I will lie with my fathers, and thou shalt carry me out of Egypt, and bury me in their buryingplace. And he said, I will do as thou hast said.');
+INSERT INTO t1(docid,words) VALUES(1047031,'And he said, Swear unto me. And he sware unto him. And Israel bowed himself upon the bed''s head.');
+INSERT INTO t1(docid,words) VALUES(1048001,'And it came to pass after these things, that one told Joseph, Behold, thy father is sick: and he took with him his two sons, Manasseh and Ephraim.');
+INSERT INTO t1(docid,words) VALUES(1048002,'And one told Jacob, and said, Behold, thy son Joseph cometh unto thee: and Israel strengthened himself, and sat upon the bed.');
+INSERT INTO t1(docid,words) VALUES(1048003,'And Jacob said unto Joseph, God Almighty appeared unto me at Luz in the land of Canaan, and blessed me,');
+INSERT INTO t1(docid,words) VALUES(1048004,'And said unto me, Behold, I will make thee fruitful, and multiply thee, and I will make of thee a multitude of people; and will give this land to thy seed after thee for an everlasting possession.');
+INSERT INTO t1(docid,words) VALUES(1048005,'And now thy two sons, Ephraim and Manasseh, which were born unto thee in the land of Egypt before I came unto thee into Egypt, are mine; as Reuben and Simeon, they shall be mine.');
+INSERT INTO t1(docid,words) VALUES(1048006,'And thy issue, which thou begettest after them, shall be thine, and shall be called after the name of their brethren in their inheritance.');
+INSERT INTO t1(docid,words) VALUES(1048007,'And as for me, when I came from Padan, Rachel died by me in the land of Canaan in the way, when yet there was but a little way to come unto Ephrath: and I buried her there in the way of Ephrath; the same is Bethlehem.');
+INSERT INTO t1(docid,words) VALUES(1048008,'And Israel beheld Joseph''s sons, and said, Who are these?');
+INSERT INTO t1(docid,words) VALUES(1048009,'And Joseph said unto his father, They are my sons, whom God hath given me in this place. And he said, Bring them, I pray thee, unto me, and I will bless them.');
+INSERT INTO t1(docid,words) VALUES(1048010,'Now the eyes of Israel were dim for age, so that he could not see. And he brought them near unto him; and he kissed them, and embraced them.');
+INSERT INTO t1(docid,words) VALUES(1048011,'And Israel said unto Joseph, I had not thought to see thy face: and, lo, God hath shewed me also thy seed.');
+INSERT INTO t1(docid,words) VALUES(1048012,'And Joseph brought them out from between his knees, and he bowed himself with his face to the earth.');
+INSERT INTO t1(docid,words) VALUES(1048013,'And Joseph took them both, Ephraim in his right hand toward Israel''s left hand, and Manasseh in his left hand toward Israel''s right hand, and brought them near unto him.');
+INSERT INTO t1(docid,words) VALUES(1048014,'And Israel stretched out his right hand, and laid it upon Ephraim''s head, who was the younger, and his left hand upon Manasseh''s head, guiding his hands wittingly; for Manasseh was the firstborn.');
+INSERT INTO t1(docid,words) VALUES(1048015,'And he blessed Joseph, and said, God, before whom my fathers Abraham and Isaac did walk, the God which fed me all my life long unto this day,');
+INSERT INTO t1(docid,words) VALUES(1048016,'The Angel which redeemed me from all evil, bless the lads; and let my name be named on them, and the name of my fathers Abraham and Isaac; and let them grow into a multitude in the midst of the earth.');
+INSERT INTO t1(docid,words) VALUES(1048017,'And when Joseph saw that his father laid his right hand upon the head of Ephraim, it displeased him: and he held up his father''s hand, to remove it from Ephraim''s head unto Manasseh''s head.');
+INSERT INTO t1(docid,words) VALUES(1048018,'And Joseph said unto his father, Not so, my father: for this is the firstborn; put thy right hand upon his head.');
+INSERT INTO t1(docid,words) VALUES(1048019,'And his father refused, and said, I know it, my son, I know it: he also shall become a people, and he also shall be great: but truly his younger brother shall be greater than he, and his seed shall become a multitude of nations.');
+INSERT INTO t1(docid,words) VALUES(1048020,'And he blessed them that day, saying, In thee shall Israel bless, saying, God make thee as Ephraim and as Manasseh: and he set Ephraim before Manasseh.');
+INSERT INTO t1(docid,words) VALUES(1048021,'And Israel said unto Joseph, Behold, I die: but God shall be with you, and bring you again unto the land of your fathers.');
+INSERT INTO t1(docid,words) VALUES(1048022,'Moreover I have given to thee one portion above thy brethren, which I took out of the hand of the Amorite with my sword and with my bow.');
+INSERT INTO t1(docid,words) VALUES(1049001,'And Jacob called unto his sons, and said, Gather yourselves together, that I may tell you that which shall befall you in the last days.');
+INSERT INTO t1(docid,words) VALUES(1049002,'Gather yourselves together, and hear, ye sons of Jacob; and hearken unto Israel your father.');
+INSERT INTO t1(docid,words) VALUES(1049003,'Reuben, thou art my firstborn, my might, and the beginning of my strength, the excellency of dignity, and the excellency of power:');
+INSERT INTO t1(docid,words) VALUES(1049004,'Unstable as water, thou shalt not excel; because thou wentest up to thy father''s bed; then defiledst thou it: he went up to my couch.');
+INSERT INTO t1(docid,words) VALUES(1049005,'Simeon and Levi are brethren; instruments of cruelty are in their habitations.');
+INSERT INTO t1(docid,words) VALUES(1049006,'O my soul, come not thou into their secret; unto their assembly, mine honour, be not thou united: for in their anger they slew a man, and in their selfwill they digged down a wall.');
+INSERT INTO t1(docid,words) VALUES(1049007,'Cursed be their anger, for it was fierce; and their wrath, for it was cruel: I will divide them in Jacob, and scatter them in Israel.');
+INSERT INTO t1(docid,words) VALUES(1049008,'Judah, thou art he whom thy brethren shall praise: thy hand shall be in the neck of thine enemies; thy father''s children shall bow down before thee.');
+INSERT INTO t1(docid,words) VALUES(1049009,'Judah is a lion''s whelp: from the prey, my son, thou art gone up: he stooped down, he couched as a lion, and as an old lion; who shall rouse him up?');
+INSERT INTO t1(docid,words) VALUES(1049010,'The sceptre shall not depart from Judah, nor a lawgiver from between his feet, until Shiloh come; and unto him shall the gathering of the people be.');
+INSERT INTO t1(docid,words) VALUES(1049011,'Binding his foal unto the vine, and his ass''s colt unto the choice vine; he washed his garments in wine, and his clothes in the blood of grapes:');
+INSERT INTO t1(docid,words) VALUES(1049012,'His eyes shall be red with wine, and his teeth white with milk.');
+INSERT INTO t1(docid,words) VALUES(1049013,'Zebulun shall dwell at the haven of the sea; and he shall be for an haven of ships; and his border shall be unto Zidon.');
+INSERT INTO t1(docid,words) VALUES(1049014,'Issachar is a strong ass couching down between two burdens:');
+INSERT INTO t1(docid,words) VALUES(1049015,'And he saw that rest was good, and the land that it was pleasant; and bowed his shoulder to bear, and became a servant unto tribute.');
+INSERT INTO t1(docid,words) VALUES(1049016,'Dan shall judge his people, as one of the tribes of Israel.');
+INSERT INTO t1(docid,words) VALUES(1049017,'Dan shall be a serpent by the way, an adder in the path, that biteth the horse heels, so that his rider shall fall backward.');
+INSERT INTO t1(docid,words) VALUES(1049018,'I have waited for thy salvation, O LORD.');
+INSERT INTO t1(docid,words) VALUES(1049019,'Gad, a troop shall overcome him: but he shall overcome at the last.');
+INSERT INTO t1(docid,words) VALUES(1049020,'Out of Asher his bread shall be fat, and he shall yield royal dainties.');
+INSERT INTO t1(docid,words) VALUES(1049021,'Naphtali is a hind let loose: he giveth goodly words.');
+INSERT INTO t1(docid,words) VALUES(1049022,'Joseph is a fruitful bough, even a fruitful bough by a well; whose branches run over the wall:');
+INSERT INTO t1(docid,words) VALUES(1049023,'The archers have sorely grieved him, and shot at him, and hated him:');
+INSERT INTO t1(docid,words) VALUES(1049024,'But his bow abode in strength, and the arms of his hands were made strong by the hands of the mighty God of Jacob; (from thence is the shepherd, the stone of Israel:)');
+INSERT INTO t1(docid,words) VALUES(1049025,'Even by the God of thy father, who shall help thee; and by the Almighty, who shall bless thee with blessings of heaven above, blessings of the deep that lieth under, blessings of the breasts, and of the womb:');
+INSERT INTO t1(docid,words) VALUES(1049026,'The blessings of thy father have prevailed above the blessings of my progenitors unto the utmost bound of the everlasting hills: they shall be on the head of Joseph, and on the crown of the head of him that was separate from his brethren.');
+INSERT INTO t1(docid,words) VALUES(1049027,'Benjamin shall ravin as a wolf: in the morning he shall devour the prey, and at night he shall divide the spoil.');
+INSERT INTO t1(docid,words) VALUES(1049028,'All these are the twelve tribes of Israel: and this is it that their father spake unto them, and blessed them; every one according to his blessing he blessed them.');
+INSERT INTO t1(docid,words) VALUES(1049029,'And he charged them, and said unto them, I am to be gathered unto my people: bury me with my fathers in the cave that is in the field of Ephron the Hittite,');
+INSERT INTO t1(docid,words) VALUES(1049030,'In the cave that is in the field of Machpelah, which is before Mamre, in the land of Canaan, which Abraham bought with the field of Ephron the Hittite for a possession of a buryingplace.');
+INSERT INTO t1(docid,words) VALUES(1049031,'There they buried Abraham and Sarah his wife; there they buried Isaac and Rebekah his wife; and there I buried Leah.');
+INSERT INTO t1(docid,words) VALUES(1049032,'The purchase of the field and of the cave that is therein was from the children of Heth.');
+INSERT INTO t1(docid,words) VALUES(1049033,'And when Jacob had made an end of commanding his sons, he gathered up his feet into the bed, and yielded up the ghost, and was gathered unto his people.');
+INSERT INTO t1(docid,words) VALUES(1050001,'And Joseph fell upon his father''s face, and wept upon him, and kissed him.');
+INSERT INTO t1(docid,words) VALUES(1050002,'And Joseph commanded his servants the physicians to embalm his father: and the physicians embalmed Israel.');
+INSERT INTO t1(docid,words) VALUES(1050003,'And forty days were fulfilled for him; for so are fulfilled the days of those which are embalmed: and the Egyptians mourned for him threescore and ten days.');
+INSERT INTO t1(docid,words) VALUES(1050004,'And when the days of his mourning were past, Joseph spake unto the house of Pharaoh, saying, If now I have found grace in your eyes, speak, I pray you, in the ears of Pharaoh, saying,');
+INSERT INTO t1(docid,words) VALUES(1050005,'My father made me swear, saying, Lo, I die: in my grave which I have digged for me in the land of Canaan, there shalt thou bury me. Now therefore let me go up, I pray thee, and bury my father, and I will come again.');
+INSERT INTO t1(docid,words) VALUES(1050006,'And Pharaoh said, Go up, and bury thy father, according as he made thee swear.');
+INSERT INTO t1(docid,words) VALUES(1050007,'And Joseph went up to bury his father: and with him went up all the servants of Pharaoh, the elders of his house, and all the elders of the land of Egypt,');
+INSERT INTO t1(docid,words) VALUES(1050008,'And all the house of Joseph, and his brethren, and his father''s house: only their little ones, and their flocks, and their herds, they left in the land of Goshen.');
+INSERT INTO t1(docid,words) VALUES(1050009,'And there went up with him both chariots and horsemen: and it was a very great company.');
+INSERT INTO t1(docid,words) VALUES(1050010,'And they came to the threshingfloor of Atad, which is beyond Jordan, and there they mourned with a great and very sore lamentation: and he made a mourning for his father seven days.');
+INSERT INTO t1(docid,words) VALUES(1050011,'And when the inhabitants of the land, the Canaanites, saw the mourning in the floor of Atad, they said, This is a grievous mourning to the Egyptians: wherefore the name of it was called Abelmizraim, which is beyond Jordan.');
+INSERT INTO t1(docid,words) VALUES(1050012,'And his sons did unto him according as he commanded them:');
+INSERT INTO t1(docid,words) VALUES(1050013,'For his sons carried him into the land of Canaan, and buried him in the cave of the field of Machpelah, which Abraham bought with the field for a possession of a buryingplace of Ephron the Hittite, before Mamre.');
+INSERT INTO t1(docid,words) VALUES(1050014,'And Joseph returned into Egypt, he, and his brethren, and all that went up with him to bury his father, after he had buried his father.');
+INSERT INTO t1(docid,words) VALUES(1050015,'And when Joseph''s brethren saw that their father was dead, they said, Joseph will peradventure hate us, and will certainly requite us all the evil which we did unto him.');
+INSERT INTO t1(docid,words) VALUES(1050016,'And they sent a messenger unto Joseph, saying, Thy father did command before he died, saying,');
+INSERT INTO t1(docid,words) VALUES(1050017,'So shall ye say unto Joseph, Forgive, I pray thee now, the trespass of thy brethren, and their sin; for they did unto thee evil: and now, we pray thee, forgive the trespass of the servants of the God of thy father. And Joseph wept when they spake unto him.');
+INSERT INTO t1(docid,words) VALUES(1050018,'And his brethren also went and fell down before his face; and they said, Behold, we be thy servants.');
+INSERT INTO t1(docid,words) VALUES(1050019,'And Joseph said unto them, Fear not: for am I in the place of God?');
+INSERT INTO t1(docid,words) VALUES(1050020,'But as for you, ye thought evil against me; but God meant it unto good, to bring to pass, as it is this day, to save much people alive.');
+INSERT INTO t1(docid,words) VALUES(1050021,'Now therefore fear ye not: I will nourish you, and your little ones. And he comforted them, and spake kindly unto them.');
+INSERT INTO t1(docid,words) VALUES(1050022,'And Joseph dwelt in Egypt, he, and his father''s house: and Joseph lived an hundred and ten years.');
+INSERT INTO t1(docid,words) VALUES(1050023,'And Joseph saw Ephraim''s children of the third generation: the children also of Machir the son of Manasseh were brought up upon Joseph''s knees.');
+INSERT INTO t1(docid,words) VALUES(1050024,'And Joseph said unto his brethren, I die: and God will surely visit you, and bring you out of this land unto the land which he sware to Abraham, to Isaac, and to Jacob.');
+INSERT INTO t1(docid,words) VALUES(1050025,'And Joseph took an oath of the children of Israel, saying, God will surely visit you, and ye shall carry up my bones from hence.');
+INSERT INTO t1(docid,words) VALUES(1050026,'So Joseph died, being an hundred and ten years old: and they embalmed him, and he was put in a coffin in Egypt.');
+COMMIT;
+}
+}
diff --git a/test/having.test b/test/having.test
new file mode 100644
index 0000000000000000000000000000000000000000..3bfa8120a1aeb8abc78d14f37a95c087669125e2
--- /dev/null
+++ b/test/having.test
@@ -0,0 +1,191 @@
+# 2017 April 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test the HAVING->WHERE optimization.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix having
+
+do_execsql_test 1.0 {
+  CREATE TABLE t2(c, d);
+
+  CREATE TABLE t1(a, b);
+  INSERT INTO t1 VALUES(1, 1);
+  INSERT INTO t1 VALUES(2, 2);
+  INSERT INTO t1 VALUES(1, 3);
+  INSERT INTO t1 VALUES(2, 4);
+  INSERT INTO t1 VALUES(1, 5);
+  INSERT INTO t1 VALUES(2, 6);
+} {}
+
+foreach {tn sql res} {
+  1 "SELECT a, sum(b) FROM t1 GROUP BY a HAVING a=2" {2 12}
+  2 "SELECT a, sum(b) FROM t1 GROUP BY a HAVING a=2 AND sum(b)>10" {2 12}
+  3 "SELECT a, sum(b) FROM t1 GROUP BY a HAVING sum(b)>12" {}
+} {
+  do_execsql_test 1.$tn $sql $res
+}
+
+# Run an EXPLAIN command for both SQL statements. Return true if 
+# the outputs are identical, or false otherwise.
+#
+proc compare_vdbe {sql1 sql2} {
+  set r1 [list]
+  set r2 [list]
+  db eval "explain $sql1" { lappend r1 $opcode $p1 $p2 $p3 $p4 $p5}
+  db eval "explain $sql2" { lappend r2 $opcode $p1 $p2 $p3 $p4 $p5}
+  return [expr {$r1==$r2}]
+}
+
+proc do_compare_vdbe_test {tn sql1 sql2 res} {
+  uplevel [list do_test $tn [list compare_vdbe $sql1 $sql2] $res]
+}
+
+#-------------------------------------------------------------------------
+# Test that various statements that are eligible for the optimization
+# produce the same VDBE code as optimizing by hand does.
+#
+foreach {tn sql1 sql2} {
+  1 "SELECT a, sum(b) FROM t1 GROUP BY a HAVING a=2"
+    "SELECT a, sum(b) FROM t1 WHERE a=2 GROUP BY a"
+
+  2 "SELECT a, sum(b) FROM t1 GROUP BY a HAVING sum(b)>5 AND a=2"
+    "SELECT a, sum(b) FROM t1 WHERE a=2 GROUP BY a HAVING sum(b)>5"
+
+  3 "SELECT a, sum(b) FROM t1 GROUP BY a COLLATE binary HAVING a=2"
+    "SELECT a, sum(b) FROM t1 WHERE a=2 GROUP BY a COLLATE binary"
+
+  5 "SELECT a, sum(b) FROM t1 GROUP BY a COLLATE binary HAVING 1"
+    "SELECT a, sum(b) FROM t1 WHERE 1 GROUP BY a COLLATE binary"
+
+  6 "SELECT count(*) FROM t1,t2 WHERE a=c GROUP BY b, d HAVING b=d"
+    "SELECT count(*) FROM t1,t2 WHERE a=c AND b=d GROUP BY b, d"
+
+  7 {
+      SELECT count(*) FROM t1,t2 WHERE a=c GROUP BY b, d 
+      HAVING b=d COLLATE nocase
+    } {
+      SELECT count(*) FROM t1,t2 WHERE a=c AND b=d COLLATE nocase 
+      GROUP BY b, d
+    }
+
+  8 "SELECT a, sum(b) FROM t1 GROUP BY a||b HAVING substr(a||b, 1, 1)='a'"
+    "SELECT a, sum(b) FROM t1 WHERE substr(a||b, 1, 1)='a' GROUP BY a||b"
+} {
+  do_compare_vdbe_test 2.$tn $sql1 $sql2 1
+}
+
+# The (4) test in the above set used to generate identical bytecode, but
+# that is no longer the case.  The byte code is equivalent, though.
+#
+do_execsql_test 2.4a {
+  SELECT x,y FROM (
+    SELECT a AS x, sum(b) AS y FROM t1 
+    GROUP BY a
+  ) WHERE x BETWEEN 2 AND 9999
+} {2 12}
+do_execsql_test 2.4b {
+  SELECT x,y FROM (
+    SELECT a AS x, sum(b) AS y FROM t1 
+    WHERE x BETWEEN 2 AND 9999 
+    GROUP BY a
+  )
+} {2 12}
+
+
+#-------------------------------------------------------------------------
+# 1: Test that the optimization is only applied if the GROUP BY term
+#    uses BINARY collation.
+#
+# 2: Not applied if there is a non-deterministic function in the HAVING
+#    term.
+#
+foreach {tn sql1 sql2} {
+  1 "SELECT a, sum(b) FROM t1 GROUP BY a COLLATE nocase HAVING a=2"
+    "SELECT a, sum(b) FROM t1 WHERE a=2 GROUP BY a COLLATE nocase"
+
+  2 "SELECT a, sum(b) FROM t1 GROUP BY a HAVING randomblob(a)<X'88'"
+    "SELECT a, sum(b) FROM t1 WHERE randomblob(a)<X'88' GROUP BY a"
+} {
+  do_compare_vdbe_test 3.$tn $sql1 $sql2 0
+}
+
+
+#-------------------------------------------------------------------------
+# Test that non-deterministic functions disqualify a term from being
+# moved from the HAVING to WHERE clause.
+#
+do_execsql_test 4.1 {
+  CREATE TABLE t3(a, b);
+  INSERT INTO t3 VALUES(1, 1);
+  INSERT INTO t3 VALUES(1, 2);
+  INSERT INTO t3 VALUES(1, 3);
+  INSERT INTO t3 VALUES(2, 1);
+  INSERT INTO t3 VALUES(2, 2);
+  INSERT INTO t3 VALUES(2, 3);
+}
+
+proc nondeter {args} {
+  incr ::nondeter_ret
+  expr {$::nondeter_ret % 2}
+}
+db func nondeter nondeter
+
+set ::nondeter_ret 0
+do_execsql_test 4.2 {
+  SELECT a, sum(b) FROM t3 GROUP BY a HAVING nondeter(a)
+} {1 6}
+
+# If the term where moved, the query above would return the same
+# result as the following. But it does not.
+#
+set ::nondeter_ret 0
+do_execsql_test 4.3 {
+  SELECT a, sum(b) FROM t3 WHERE nondeter(a) GROUP BY a
+} {1 4 2 2}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 5.0 {
+  CREATE TABLE t1(a, b);
+  CREATE TABLE t2(x, y);
+  INSERT INTO t1 VALUES('a', 'b');
+}
+
+# The WHERE clause (a=2), uses an aggregate column from the outer query.
+# If the HAVING term (0) is moved into the WHERE clause in this case,
+# SQLite would at one point optimize (a=2 AND 0) to simply (0). Which
+# is logically correct, but happened to cause problems in aggregate
+# processing for the outer query. This test case verifies that those 
+# problems are no longer present.
+do_execsql_test 5.1 {
+  SELECT min(b), (
+    SELECT x FROM t2 WHERE a=2 GROUP BY y HAVING 0
+  ) FROM t1;
+} {b {}}
+
+# From chromium
+# https://bugs.chromium.org/p/chromium/issues/detail?id=1161869
+#
+do_execsql_test 5.2 {
+  SELECT EXISTS (
+    SELECT * FROM (
+      SELECT * FROM (
+        SELECT 1
+      ) WHERE Col0 = 1   GROUP BY 1
+    )   WHERE 0
+  )
+  FROM (SELECT 1 Col0)   GROUP BY 1
+} {0}
+
+finish_test
diff --git a/test/hexlit.test b/test/hexlit.test
new file mode 100644
index 0000000000000000000000000000000000000000..2161f27a12805cc198d2cf40d79e1207099cf65a
--- /dev/null
+++ b/test/hexlit.test
@@ -0,0 +1,125 @@
+# 2014-07-23
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements tests for hexadecimal literals
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+proc hexlit1 {tnum val ans} {
+  do_execsql_test hexlit-$tnum "SELECT $val" $ans
+}
+
+hexlit1 100 0x0 0
+hexlit1 101 0x0000000000000000000000000000000000000000000001 1
+hexlit1 102 0x2 2
+hexlit1 103 0x4 4
+hexlit1 104 0x8 8
+hexlit1 105 0x00000000000000000000000000000000000000000000010 16
+hexlit1 103 0x20 32
+hexlit1 106 0x40 64
+hexlit1 107 0x80 128
+hexlit1 108 0x100 256
+hexlit1 109 0x200 512
+hexlit1 110 0X400 1024
+hexlit1 111 0x800 2048
+hexlit1 112 0x1000 4096
+hexlit1 113 0x2000 8192
+hexlit1 114 0x4000 16384
+hexlit1 115 0x8000 32768
+hexlit1 116 0x10000 65536
+hexlit1 117 0x20000 131072
+hexlit1 118 0x40000 262144
+hexlit1 119 0x80000 524288
+hexlit1 120 0x100000 1048576
+hexlit1 121 0x200000 2097152
+hexlit1 122 0x400000 4194304
+hexlit1 123 0x800000 8388608
+hexlit1 124 0x1000000 16777216
+hexlit1 125 0x2000000 33554432
+hexlit1 126 0x4000000 67108864
+hexlit1 127 0x8000000 134217728
+hexlit1 128 0x10000000 268435456
+hexlit1 129 0x20000000 536870912
+hexlit1 130 0x40000000 1073741824
+hexlit1 131 0x80000000 2147483648
+hexlit1 132 0x100000000 4294967296
+hexlit1 133 0x200000000 8589934592
+hexlit1 134 0x400000000 17179869184
+hexlit1 135 0x800000000 34359738368
+hexlit1 136 0x1000000000 68719476736
+hexlit1 137 0x2000000000 137438953472
+hexlit1 138 0x4000000000 274877906944
+hexlit1 139 0x8000000000 549755813888
+hexlit1 140 0x10000000000 1099511627776
+hexlit1 141 0x20000000000 2199023255552
+hexlit1 142 0x40000000000 4398046511104
+hexlit1 143 0x80000000000 8796093022208
+hexlit1 144 0x100000000000 17592186044416
+hexlit1 145 0x200000000000 35184372088832
+hexlit1 146 0x400000000000 70368744177664
+hexlit1 147 0x800000000000 140737488355328
+hexlit1 148 0x1000000000000 281474976710656
+hexlit1 149 0x2000000000000 562949953421312
+hexlit1 150 0x4000000000000 1125899906842624
+hexlit1 151 0x8000000000000 2251799813685248
+hexlit1 152 0x10000000000000 4503599627370496
+hexlit1 153 0x20000000000000 9007199254740992
+hexlit1 154 0x40000000000000 18014398509481984
+hexlit1 155 0x80000000000000 36028797018963968
+hexlit1 156 0x100000000000000 72057594037927936
+hexlit1 157 0x200000000000000 144115188075855872
+hexlit1 158 0x400000000000000 288230376151711744
+hexlit1 159 0x800000000000000 576460752303423488
+hexlit1 160 0X1000000000000000 1152921504606846976
+hexlit1 161 0x2000000000000000 2305843009213693952
+hexlit1 162 0X4000000000000000 4611686018427387904
+hexlit1 163 0x8000000000000000 -9223372036854775808
+hexlit1 164 0XFFFFFFFFFFFFFFFF -1
+
+for {set n 1} {$n < 0x10} {incr n} {
+  hexlit1 200.$n.1 0X[format %03X $n] $n
+  hexlit1 200.$n.2 0x[format %03X $n] $n
+  hexlit1 200.$n.3 0X[format %03x $n] $n
+  hexlit1 200.$n.4 0x[format %03x $n] $n
+}
+
+# String literals that look like hex do not get cast or coerced.
+#
+do_execsql_test hexlit-300 {
+  CREATE TABLE t1(x INT, y REAL);
+  INSERT INTO t1 VALUES('1234','4567'),('0x1234','0x4567');
+  SELECT typeof(x), x, typeof(y), y, '#' FROM t1 ORDER BY rowid;
+} {integer 1234 real 4567.0 # text 0x1234 text 0x4567 #}
+do_execsql_test hexlit-301 {
+  SELECT CAST('0x1234' AS INTEGER);
+} {0}
+
+# Oversized hex literals are rejected
+#
+do_catchsql_test hexlist-400 {
+  SELECT 0x10000000000000000;
+} {1 {hex literal too big: 0x10000000000000000}}
+do_catchsql_test hexlist-401 {
+  SELECT DISTINCT 0x10000000000000000;
+} {1 {hex literal too big: 0x10000000000000000}}
+do_catchsql_test hexlist-402 {
+  SELECT DISTINCT -0x08000000000000000;
+} {1 {hex literal too big: -0x08000000000000000}}
+do_catchsql_test hexlist-410 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(x);
+  INSERT INTO t1 VALUES(1+0x10000000000000000);
+} {1 {hex literal too big: 0x10000000000000000}}
+
+
+finish_test
diff --git a/test/hidden.test b/test/hidden.test
new file mode 100644
index 0000000000000000000000000000000000000000..1db2cad12ed0eb47b2b42b217a8ff2cc6dccd9f7
--- /dev/null
+++ b/test/hidden.test
@@ -0,0 +1,153 @@
+# 2015 November 18
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test the __hidden__ hack.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix hidden
+
+ifcapable !hiddencolumns {
+  finish_test
+  return
+}
+
+do_execsql_test 1.1 {
+  CREATE TABLE t1(__hidden__a, b);
+  INSERT INTO t1 VALUES('1');
+  INSERT INTO t1(__hidden__a, b) VALUES('x', 'y');
+} {}
+
+do_execsql_test 1.2 {
+  SELECT * FROM t1;
+} {1 y}
+
+do_execsql_test 1.3 {
+  SELECT __hidden__a, * FROM t1;
+} {{} 1 x y}
+
+foreach {tn view} {
+  1 { CREATE VIEW v1(a, b, __hidden__c) AS SELECT a, b, c FROM x1 }
+  2 { CREATE VIEW v1 AS SELECT a, b, c AS __hidden__c FROM x1 }
+} {
+  do_execsql_test 2.$tn.1 {
+    DROP TABLE IF EXISTS x1;
+    CREATE TABLE x1(a, b, c);
+    INSERT INTO x1 VALUES(1, 2, 3);
+  }
+
+  catchsql { DROP VIEW v1 }
+  execsql $view
+
+  do_execsql_test 2.$tn.2 {
+    SELECT a, b, __hidden__c FROM v1;
+  } {1 2 3}
+  
+  do_execsql_test 2.$tn.3 {
+    SELECT * FROM v1;
+  } {1 2}
+  
+  do_execsql_test 2.$tn.4 {
+    CREATE TRIGGER tr1 INSTEAD OF INSERT ON v1 BEGIN
+      INSERT INTO x1 VALUES(new.a, new.b, new.__hidden__c);
+    END;
+  
+    INSERT INTO v1 VALUES(4, 5);
+    SELECT * FROM x1;
+  } {1 2 3 4 5 {}}
+  
+  do_execsql_test 2.$tn.5 {
+    INSERT INTO v1(a, b, __hidden__c) VALUES(7, 8, 9);
+    SELECT * FROM x1;
+  } {1 2 3 4 5 {} 7 8 9}
+}
+
+#-------------------------------------------------------------------------
+# Test INSERT INTO ... SELECT ... statements that write to tables with
+# hidden columns.
+#
+do_execsql_test 3.1 {
+  CREATE TABLE t4(a, __hidden__b, c);
+  INSERT INTO t4 SELECT 1, 2;
+  SELECT a, __hidden__b, c FROM t4;
+} {1 {} 2}
+
+do_execsql_test 3.2.1 {
+  CREATE TABLE t5(__hidden__a, b, c);
+  CREATE TABLE t6(__hidden__a, b, c);
+  INSERT INTO t6(__hidden__a, b, c) VALUES(1, 2, 3);
+  INSERT INTO t6(__hidden__a, b, c) VALUES(4, 5, 6);
+  INSERT INTO t6(__hidden__a, b, c) VALUES(7, 8, 9);
+}
+
+do_execsql_test 3.2.2 {
+  INSERT INTO t5 SELECT * FROM t6;
+  SELECT * FROM t5;
+} {2 3   5 6   8 9}
+
+do_execsql_test 3.2.3 {
+  SELECT __hidden__a FROM t5;
+} {{} {} {}}
+
+
+do_execsql_test 3.3.1 {
+  CREATE TABLE t5a(a, b, __hidden__c);
+  CREATE TABLE t6a(a, b, __hidden__c);
+  INSERT INTO t6a(a, b, __hidden__c) VALUES(1, 2, 3);
+  INSERT INTO t6a(a, b, __hidden__c) VALUES(4, 5, 6);
+  INSERT INTO t6a(a, b, __hidden__c) VALUES(7, 8, 9);
+}
+
+do_execsql_test 3.3.2 {
+  INSERT INTO t5a SELECT * FROM t6a;
+  SELECT * FROM t5a;
+} {1 2   4 5   7 8}
+
+do_execsql_test 3.3.3 {
+  SELECT __hidden__c FROM t5a;
+} {{} {} {}}
+
+do_execsql_test 3.4.1 {
+  CREATE TABLE t5b(a, __hidden__b, c);
+  CREATE TABLE t6b(a, b, __hidden__c);
+  INSERT INTO t6b(a, b, __hidden__c) VALUES(1, 2, 3);
+  INSERT INTO t6b(a, b, __hidden__c) VALUES(4, 5, 6);
+  INSERT INTO t6b(a, b, __hidden__c) VALUES(7, 8, 9);
+}
+
+do_execsql_test 3.4.2 {
+  INSERT INTO t5b SELECT * FROM t6b;
+  SELECT * FROM t5b;
+} {1 2   4 5   7 8}
+
+do_execsql_test 3.4.3 {
+  SELECT __hidden__b FROM t5b;
+} {{} {} {}}
+
+#-------------------------------------------------------------------------
+# Test VACUUM
+#
+reset_db
+do_execsql_test 4.1 {
+  CREATE TABLE t1(a, __hidden__b, c UNIQUE);
+  INSERT INTO t1(a, __hidden__b, c) VALUES(1, 2, 3);
+  INSERT INTO t1(a, __hidden__b, c) VALUES(4, 5, 6);
+  INSERT INTO t1(a, __hidden__b, c) VALUES(7, 8, 9);
+  DELETE FROM t1 WHERE __hidden__b = 5;
+  SELECT rowid, a, __hidden__b, c FROM t1;
+} {1 1 2 3   3 7 8 9}
+do_execsql_test 4.2 {
+  VACUUM;
+  SELECT rowid, a, __hidden__b, c FROM t1;
+} {1 1 2 3   3 7 8 9}
+
+finish_test
diff --git a/test/hook.test b/test/hook.test
new file mode 100644
index 0000000000000000000000000000000000000000..8638d3a6baea9193852d9150a3f3a9c77d049fef
--- /dev/null
+++ b/test/hook.test
@@ -0,0 +1,1060 @@
+# 2004 Jan 14
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for TCL interface to the
+# SQLite library. 
+#
+# The focus of the tests in this file is the  following interface:
+#
+#      sqlite_commit_hook    (tests hook-1..hook-3 inclusive)
+#      sqlite_update_hook    (tests hook-4-*)
+#      sqlite_rollback_hook  (tests hook-5.*)
+#      sqlite_preupdate_hook  (tests hook-7..hook-12)
+#
+# $Id: hook.test,v 1.15 2009/04/07 14:14:23 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix hook
+
+do_test hook-1.2 {
+  db commit_hook
+} {}
+
+
+do_test hook-3.1 {
+  set commit_cnt 0
+  proc commit_hook {} {
+    incr ::commit_cnt
+    return 0
+  }
+  db commit_hook ::commit_hook
+  db commit_hook
+} {::commit_hook}
+do_test hook-3.2 {
+  set commit_cnt
+} {0}
+do_test hook-3.3 {
+  execsql {
+    CREATE TABLE t2(a,b);
+  }
+  set commit_cnt
+} {1}
+do_test hook-3.4 {
+  execsql {
+    INSERT INTO t2 VALUES(1,2);
+    INSERT INTO t2 SELECT a+1, b+1 FROM t2;
+    INSERT INTO t2 SELECT a+2, b+2 FROM t2;
+  }
+  set commit_cnt
+} {4}
+do_test hook-3.5 {
+  set commit_cnt {}
+  proc commit_hook {} {
+    set ::commit_cnt [execsql {SELECT * FROM t2}]
+    return 0
+  }
+  execsql {
+    INSERT INTO t2 VALUES(5,6);
+  }
+  set commit_cnt
+} {1 2 2 3 3 4 4 5 5 6}
+do_test hook-3.6 {
+  set commit_cnt {}
+  proc commit_hook {} {
+    set ::commit_cnt [execsql {SELECT * FROM t2}] 
+    return 1
+  }
+  catchsql {
+    INSERT INTO t2 VALUES(6,7);
+  }
+} {1 {constraint failed}}
+verify_ex_errcode hook-3.6b SQLITE_CONSTRAINT_COMMITHOOK
+do_test hook-3.7 {
+  set ::commit_cnt
+} {1 2 2 3 3 4 4 5 5 6 6 7}
+do_test hook-3.8 {
+  execsql {SELECT * FROM t2}
+} {1 2 2 3 3 4 4 5 5 6}
+
+# Test turnning off the commit hook
+#
+do_test hook-3.9 {
+  db commit_hook {}
+  set ::commit_cnt {}
+  execsql {
+    INSERT INTO t2 VALUES(7,8);
+  }
+  set ::commit_cnt
+} {}
+
+# Ticket #3564.
+#
+do_test hook-3.10 {
+  forcedelete test2.db test2.db-journal
+  sqlite3 db2 test2.db
+  proc commit_hook {} {
+    set y [db2 one {SELECT y FROM t3 WHERE y>10}]
+    return [expr {$y>10}]
+  }
+  db2 eval {CREATE TABLE t3(x,y)}
+  db2 commit_hook commit_hook
+  catchsql {INSERT INTO t3 VALUES(1,2)} db2
+  catchsql {INSERT INTO t3 VALUES(11,12)} db2
+  catchsql {INSERT INTO t3 VALUES(3,4)} db2
+  db2 eval {
+    SELECT * FROM t3 ORDER BY x;
+  }
+} {1 2 3 4}
+db2 close
+
+
+#----------------------------------------------------------------------------
+# Tests for the update-hook.
+#
+# 4.1.* - Very simple tests. Test that the update hook is invoked correctly 
+#         for INSERT, DELETE and UPDATE statements, including DELETE 
+#         statements with no WHERE clause.
+# 4.2.* - Check that the update-hook is invoked for rows modified by trigger
+#         bodies. Also that the database name is correctly reported when 
+#         an attached database is modified.
+# 4.3.* - Do some sorting, grouping, compound queries, population and 
+#         depopulation of indices, to make sure the update-hook is not 
+#         invoked incorrectly.
+#
+# EVIDENCE-OF: R-21999-45122 The sqlite3_update_hook() interface
+# registers a callback function with the database connection identified
+# by the first argument to be invoked whenever a row is updated,
+# inserted or deleted in a rowid table.
+
+# Simple tests
+do_test hook-4.1.1a {
+  catchsql {
+    DROP TABLE t1;
+  }
+  unset -nocomplain ::update_hook
+  set ::update_hook {}
+  db update_hook [list lappend ::update_hook]
+  #
+  # EVIDENCE-OF: R-24531-54682 The update hook is not invoked when
+  # internal system tables are modified (i.e. sqlite_sequence).
+  #
+  execsql {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+    CREATE TABLE t1w(a INT PRIMARY KEY, b) WITHOUT ROWID;
+  }
+  set ::update_hook
+} {}
+do_test hook-4.1.1b {
+  execsql {
+    INSERT INTO t1 VALUES(1, 'one');
+    INSERT INTO t1 VALUES(2, 'two');
+    INSERT INTO t1 VALUES(3, 'three');
+    INSERT INTO t1w SELECT * FROM t1;
+  }
+} {}
+
+# EVIDENCE-OF: R-15506-57666 The second callback argument is one of
+# SQLITE_INSERT, SQLITE_DELETE, or SQLITE_UPDATE, depending on the
+# operation that caused the callback to be invoked.
+#
+# EVIDENCE-OF: R-29213-61195 The third and fourth arguments to the
+# callback contain pointers to the database and table name containing
+# the affected row.
+#
+# EVIDENCE-OF: R-30809-57812 The final callback parameter is the rowid
+# of the row.
+#
+do_test hook-4.1.2 {
+  set ::update_hook {}
+  execsql {
+    INSERT INTO t1 VALUES(4, 'four');
+    DELETE FROM t1 WHERE b = 'two';
+    UPDATE t1 SET b = '' WHERE a = 1 OR a = 3;
+    DELETE FROM t1 WHERE 1; -- Avoid the truncate optimization (for now)
+  }
+  set ::update_hook
+} [list \
+    INSERT main t1 4 \
+    DELETE main t1 2 \
+    UPDATE main t1 1 \
+    UPDATE main t1 3 \
+    DELETE main t1 1 \
+    DELETE main t1 3 \
+    DELETE main t1 4 \
+]
+
+# EVIDENCE-OF: R-61808-14344 The sqlite3_update_hook() interface does
+# not fire callbacks for changes to a WITHOUT ROWID table.
+#
+# EVIDENCE-OF: R-33257-44249 The update hook is not invoked when WITHOUT
+# ROWID tables are modified.
+#
+do_test hook-4.1.2w {
+  set ::update_hook {}
+  execsql {
+    INSERT INTO t1w VALUES(4, 'four');
+    DELETE FROM t1w WHERE b = 'two';
+    UPDATE t1w SET b = '' WHERE a = 1 OR a = 3;
+    DELETE FROM t1w WHERE 1; -- Avoid the truncate optimization (for now)
+  }
+  set ::update_hook
+} {}
+
+ifcapable trigger {
+  # Update hook is not invoked for changes to sqlite_master
+  #
+  do_test hook-4.1.3 {
+    set ::update_hook {}
+    execsql {
+      CREATE TRIGGER r1 AFTER INSERT ON t1 BEGIN SELECT RAISE(IGNORE); END;
+    }
+    set ::update_hook
+  } {}
+  do_test hook-4.1.4 {
+    set ::update_hook {}
+    execsql {
+      DROP TRIGGER r1;
+    }
+    set ::update_hook
+  } {}
+  
+  set ::update_hook {}
+  do_test hook-4.2.1 {
+    catchsql {
+      DROP TABLE t2;
+    }
+    execsql {
+      CREATE TABLE t2(c INTEGER PRIMARY KEY, d);
+      CREATE TRIGGER t1_trigger AFTER INSERT ON t1 BEGIN
+        INSERT INTO t2 VALUES(new.a, new.b);
+        UPDATE t2 SET d = d || ' via trigger' WHERE new.a = c;
+        DELETE FROM t2 WHERE new.a = c;
+      END;
+    }
+  } {}
+  do_test hook-4.2.2 {
+    execsql {
+      INSERT INTO t1 VALUES(1, 'one');
+      INSERT INTO t1 VALUES(2, 'two');
+    }
+    set ::update_hook
+  } [list \
+      INSERT main t1 1 \
+      INSERT main t2 1 \
+      UPDATE main t2 1 \
+      DELETE main t2 1 \
+      INSERT main t1 2 \
+      INSERT main t2 2 \
+      UPDATE main t2 2 \
+      DELETE main t2 2 \
+  ]
+} else {
+  execsql {
+    INSERT INTO t1 VALUES(1, 'one');
+    INSERT INTO t1 VALUES(2, 'two');
+  }
+}
+
+# Update-hook + ATTACH
+set ::update_hook {}
+ifcapable attach {
+  do_test hook-4.2.3 {
+    forcedelete test2.db
+    execsql {
+      ATTACH 'test2.db' AS aux;
+      CREATE TABLE aux.t3(a INTEGER PRIMARY KEY, b);
+      INSERT INTO aux.t3 SELECT * FROM t1;
+      UPDATE t3 SET b = 'two or so' WHERE a = 2;
+      DELETE FROM t3 WHERE 1; -- Avoid the truncate optimization (for now)
+    }
+    set ::update_hook
+  } [list \
+      INSERT aux t3 1 \
+      INSERT aux t3 2 \
+      UPDATE aux t3 2 \
+      DELETE aux t3 1 \
+      DELETE aux t3 2 \
+  ]
+}
+
+ifcapable trigger {
+  execsql {
+    DROP TRIGGER t1_trigger;
+  }
+}
+
+# Test that other vdbe operations involving btree structures do not 
+# incorrectly invoke the update-hook.
+set ::update_hook {}
+do_test hook-4.3.1 {
+  execsql {
+    CREATE INDEX t1_i ON t1(b);
+    INSERT INTO t1 VALUES(3, 'three');
+    UPDATE t1 SET b = '';
+    DELETE FROM t1 WHERE a > 1;
+  }
+  set ::update_hook
+} [list \
+    INSERT main t1 3 \
+    UPDATE main t1 1 \
+    UPDATE main t1 2 \
+    UPDATE main t1 3 \
+    DELETE main t1 2 \
+    DELETE main t1 3 \
+]
+set ::update_hook {}
+ifcapable compound&&attach {
+  do_test hook-4.3.2 {
+    execsql {
+      SELECT * FROM t1 UNION SELECT * FROM t3;
+      SELECT * FROM t1 UNION ALL SELECT * FROM t3;
+      SELECT * FROM t1 INTERSECT SELECT * FROM t3;
+      SELECT * FROM t1 EXCEPT SELECT * FROM t3;
+      SELECT * FROM t1 ORDER BY b;
+      SELECT * FROM t1 GROUP BY b;
+    }
+    set ::update_hook
+  } [list]
+}
+
+do_test hook-4.4 {
+  execsql {
+    CREATE TABLE t4(a UNIQUE, b);
+    INSERT INTO t4 VALUES(1, 'a');
+    INSERT INTO t4 VALUES(2, 'b');
+  }
+  set ::update_hook [list]
+  execsql {
+    REPLACE INTO t4 VALUES(1, 'c');
+  }
+  set ::update_hook
+} [list INSERT main t4 3 ]
+do_execsql_test hook-4.4.1 {
+  SELECT * FROM t4 ORDER BY a;
+} {1 c 2 b}
+do_test hook-4.4.2 {
+  set ::update_hook [list]
+  execsql {
+    PRAGMA recursive_triggers = on;
+    REPLACE INTO t4 VALUES(1, 'd');
+  }
+  set ::update_hook
+} [list INSERT main t4 4 ]
+do_execsql_test hook-4.4.3 {
+  SELECT * FROM t4 ORDER BY a;
+} {1 d 2 b}
+
+db update_hook {}
+#
+#----------------------------------------------------------------------------
+
+#----------------------------------------------------------------------------
+# Test the rollback-hook. The rollback-hook is a bit more complicated than
+# either the commit or update hooks because a rollback can happen 
+# explicitly (an sql ROLLBACK statement) or implicitly (a constraint or 
+# error condition).
+#
+# hook-5.1.* - Test explicit rollbacks.
+# hook-5.2.* - Test implicit rollbacks caused by constraint failure.
+#
+# hook-5.3.* - Test implicit rollbacks caused by IO errors.
+# hook-5.4.* - Test implicit rollbacks caused by malloc() failure.
+# hook-5.5.* - Test hot-journal rollbacks. Or should the rollback hook 
+#              not be called for these?
+#
+
+do_test hook-5.0 {
+  # Configure the rollback hook to increment global variable 
+  # $::rollback_hook each time it is invoked.
+  set ::rollback_hook 0
+  db rollback_hook [list incr ::rollback_hook]
+} {}
+
+# Test explicit rollbacks. Not much can really go wrong here.
+#
+do_test hook-5.1.1 {
+  set ::rollback_hook 0
+  execsql {
+    BEGIN;
+    ROLLBACK;
+  }
+  set ::rollback_hook
+} {1}
+
+# Test implicit rollbacks caused by constraints.
+#
+do_test hook-5.2.1 {
+  set ::rollback_hook 0
+  catchsql {
+    DROP TABLE t1;
+    CREATE TABLE t1(a PRIMARY KEY, b);
+    INSERT INTO t1 VALUES('one', 'I');
+    INSERT INTO t1 VALUES('one', 'I');
+  }
+  set ::rollback_hook
+} {1}
+do_test hook-5.2.2 {
+  # Check that the INSERT transaction above really was rolled back.
+  execsql {
+    SELECT count(*) FROM t1;
+  }
+} {1}
+
+#
+# End rollback-hook testing.
+#----------------------------------------------------------------------------
+
+#----------------------------------------------------------------------------
+# Test that if a commit-hook returns non-zero (causing a rollback), the
+# rollback-hook is invoked.
+#
+proc commit_hook {} {
+  lappend ::hooks COMMIT
+  return 1
+}
+proc rollback_hook {} {
+  lappend ::hooks ROLLBACK
+}
+do_test hook-6.1 {
+  set ::hooks [list]
+  db commit_hook commit_hook
+  db rollback_hook rollback_hook
+  catchsql {
+    BEGIN;
+      INSERT INTO t1 VALUES('two', 'II');
+    COMMIT;
+  }
+  execsql { SELECT * FROM t1 }
+} {one I}
+do_test hook-6.2 {
+  set ::hooks
+} {COMMIT ROLLBACK}
+unset ::hooks
+
+#----------------------------------------------------------------------------
+# The following tests - hook-7.* - test the pre-update hook.
+#
+ifcapable !preupdate {
+  finish_test
+  return
+}
+#
+# 7.1.1 - INSERT statement.
+# 7.1.2 - INSERT INTO ... SELECT statement.
+# 7.1.3 - REPLACE INTO ... (rowid conflict)
+# 7.1.4 - REPLACE INTO ... (other index conflicts)
+# 7.1.5 - REPLACE INTO ... (both rowid and other index conflicts)
+#
+# 7.2.1 - DELETE statement.
+# 7.2.2 - DELETE statement that uses the truncate optimization.
+#
+# 7.3.1 - UPDATE statement.
+# 7.3.2 - UPDATE statement that modifies the rowid.
+# 7.3.3 - UPDATE OR REPLACE ... (rowid conflict).
+# 7.3.4 - UPDATE OR REPLACE ... (other index conflicts)
+# 7.3.4 - UPDATE OR REPLACE ... (both rowid and other index conflicts)
+#
+# 7.4.1 - Test that the pre-update-hook is invoked only once if a row being
+#         deleted is removed by a BEFORE trigger.
+#
+# 7.4.2 - Test that the pre-update-hook is invoked if a BEFORE trigger 
+#         removes a row being updated. In this case the update hook should
+#         be invoked with SQLITE_INSERT as the opcode when inserting the
+#         new version of the row.
+#         
+# TODO: Short records (those created before a column is added to a table 
+#       using ALTER TABLE)
+#
+
+proc do_preupdate_test {tn sql x} {
+  set X [list]
+  foreach elem $x {lappend X $elem}
+  uplevel do_test $tn [list "
+    set ::preupdate \[list\]
+    execsql { $sql }
+    set ::preupdate
+  "] [list $X]
+}
+
+proc preupdate_hook {args} {
+  set type [lindex $args 0]
+  eval lappend ::preupdate $args
+  if {$type != "INSERT"} {
+    for {set i 0} {$i < [db preupdate count]} {incr i} {
+      lappend ::preupdate [db preupdate old $i]
+    }
+  }
+  if {$type != "DELETE"} {
+    for {set i 0} {$i < [db preupdate count]} {incr i} {
+      set rc [catch { db preupdate new $i } v]
+      lappend ::preupdate $v
+    }
+  }
+}
+
+db close
+forcedelete test.db
+sqlite3 db test.db
+db preupdate hook preupdate_hook
+
+# Set up a schema to use for tests 7.1.* to 7.3.*.
+do_execsql_test 7.0 { 
+  CREATE TABLE t1(a, b); 
+  CREATE TABLE t2(x, y); 
+  CREATE TABLE t3(i, j, UNIQUE(i));
+
+  INSERT INTO t2 VALUES('a', 'b');
+  INSERT INTO t2 VALUES('c', 'd');
+
+  INSERT INTO t3 VALUES(4, 16);
+  INSERT INTO t3 VALUES(5, 25);
+  INSERT INTO t3 VALUES(6, 36);
+} 
+
+do_preupdate_test 7.1.1 {
+  INSERT INTO t1 VALUES('x', 'y')
+} {INSERT main t1 1 1  x y}
+
+# 7.1.2.1 does not use the xfer optimization. 7.1.2.2 does.
+do_preupdate_test 7.1.2.1 {
+  INSERT INTO t1 SELECT y, x FROM t2;
+} {INSERT main t1 2 2 b a   INSERT main t1 3 3 d c}
+do_preupdate_test 7.1.2.2 {
+  INSERT INTO t1 SELECT * FROM t2;
+} {INSERT main t1 4 4 a b   INSERT main t1 5 5 c d}
+
+do_preupdate_test 7.1.3 {
+  REPLACE INTO t1(rowid, a, b) VALUES(1, 1, 1);
+} {
+  DELETE main t1 1 1   x y
+  INSERT main t1 1 1   1 1
+}
+
+do_preupdate_test 7.1.4 {
+  REPLACE INTO t3 VALUES(4, NULL);
+} {
+  DELETE main t3 1 1   4 16
+  INSERT main t3 4 4   4 {}
+}
+
+do_preupdate_test 7.1.5 {
+  REPLACE INTO t3(rowid, i, j) VALUES(2, 6, NULL);
+} {
+  DELETE main t3 2 2  5 25
+  DELETE main t3 3 3  6 36
+  INSERT main t3 2 2  6 {}
+}
+
+do_execsql_test 7.2.0 { SELECT rowid FROM t1 } {1 2 3 4 5}
+
+do_preupdate_test 7.2.1 {
+  DELETE FROM t1 WHERE rowid = 3
+} {
+  DELETE main t1 3 3  d c
+}
+do_preupdate_test 7.2.2 {
+  DELETE FROM t1
+} {
+  DELETE main t1 1 1   1 1
+  DELETE main t1 2 2   b a
+  DELETE main t1 4 4   a b
+  DELETE main t1 5 5   c d
+}
+
+do_execsql_test 7.3.0 { 
+  DELETE FROM t1;
+  DELETE FROM t2;
+  DELETE FROM t3;
+
+  INSERT INTO t2 VALUES('a', 'b');
+  INSERT INTO t2 VALUES('c', 'd');
+
+  INSERT INTO t3 VALUES(4, 16);
+  INSERT INTO t3 VALUES(5, 25);
+  INSERT INTO t3 VALUES(6, 36);
+}
+
+do_preupdate_test 7.3.1 {
+  UPDATE t2 SET y = y||y;
+} {
+  UPDATE main t2 1 1   a b  a bb
+  UPDATE main t2 2 2   c d  c dd
+}
+
+do_preupdate_test 7.3.2 {
+  UPDATE t2 SET rowid = rowid-1;
+} {
+  UPDATE main t2 1 0   a bb  a bb
+  UPDATE main t2 2 1   c dd  c dd
+}
+
+do_preupdate_test 7.3.3 {
+  UPDATE OR REPLACE t2 SET rowid = 1 WHERE x = 'a'
+} {
+  DELETE main t2 1 1   c dd
+  UPDATE main t2 0 1   a bb  a bb
+}
+
+do_preupdate_test 7.3.4.1 {
+  UPDATE OR REPLACE t3 SET i = 5 WHERE i = 6
+} {
+  DELETE main t3 2 2   5 25
+  UPDATE main t3 3 3   6 36  5 36
+}
+
+do_execsql_test 7.3.4.2 {
+  INSERT INTO t3 VALUES(10, 100);
+  SELECT rowid, * FROM t3;
+} {1 4 16   3 5 36   4 10 100}
+
+do_preupdate_test 7.3.5 {
+  UPDATE OR REPLACE t3 SET rowid = 1, i = 5 WHERE j = 100;
+} {
+  DELETE main t3 1 1    4  16
+  DELETE main t3 3 3    5  36
+  UPDATE main t3 4 1   10 100  5 100
+}
+
+do_execsql_test 7.4.1.0 {
+  CREATE TABLE t4(a, b);
+  INSERT INTO t4 VALUES('a', 1);
+  INSERT INTO t4 VALUES('b', 2);
+  INSERT INTO t4 VALUES('c', 3);
+
+  CREATE TRIGGER t4t BEFORE DELETE ON t4 BEGIN
+    DELETE FROM t4 WHERE b = 1;
+  END;
+}
+
+do_preupdate_test 7.4.1.1 {
+  DELETE FROM t4 WHERE b = 3
+} {
+  DELETE main t4 1 1   a 1
+  DELETE main t4 3 3   c 3
+}
+
+do_execsql_test 7.4.1.2 {
+  INSERT INTO t4(rowid, a, b) VALUES(1, 'a', 1);
+  INSERT INTO t4(rowid, a, b) VALUES(3, 'c', 3);
+}
+do_preupdate_test 7.4.1.3 {
+  DELETE FROM t4 WHERE b = 1
+} {
+  DELETE main t4 1 1   a 1
+}
+
+do_execsql_test 7.4.2.0 {
+  CREATE TABLE t5(a, b);
+  INSERT INTO t5 VALUES('a', 1);
+  INSERT INTO t5 VALUES('b', 2);
+  INSERT INTO t5 VALUES('c', 3);
+
+  CREATE TRIGGER t5t BEFORE UPDATE ON t5 BEGIN
+    DELETE FROM t5 WHERE b = 1;
+  END;
+}
+do_preupdate_test 7.4.2.1 {
+  UPDATE t5 SET b = 4 WHERE a = 'c'
+} {
+  DELETE main t5 1 1   a 1
+  UPDATE main t5 3 3   c 3  c 4
+}
+
+do_execsql_test 7.4.2.2 {
+  INSERT INTO t5(rowid, a, b) VALUES(1, 'a', 1);
+}
+
+do_preupdate_test 7.4.2.3 {
+  UPDATE t5 SET b = 5 WHERE a = 'a'
+} {
+  DELETE main t5 1 1   a 1
+}
+
+ifcapable altertable {
+  do_execsql_test 7.5.1.0 {
+    CREATE TABLE t7(a, b);
+    INSERT INTO t7 VALUES('one', 'two');
+    INSERT INTO t7 VALUES('three', 'four');
+    ALTER TABLE t7 ADD COLUMN c DEFAULT NULL;
+  }
+  
+  do_preupdate_test 7.5.1.1 {
+    DELETE FROM t7 WHERE a = 'one'
+  } {
+    DELETE main t7 1 1   one two {}
+  }
+  
+  do_preupdate_test 7.5.1.2 {
+    UPDATE t7 SET b = 'five'
+  } {
+    UPDATE main t7 2 2   three four {}  three five {}
+  }
+  
+  do_execsql_test 7.5.2.0 {
+    CREATE TABLE t8(a, b);
+    INSERT INTO t8 VALUES('one', 'two');
+    INSERT INTO t8 VALUES('three', 'four');
+    ALTER TABLE t8 ADD COLUMN c DEFAULT 'xxx';
+  }
+}
+
+if 1 {
+  # At time of writing, these two are broken. They demonstrate that the
+  # sqlite3_preupdate_old() method does not handle the case where ALTER TABLE
+  # has been used to add a column with a default value other than NULL.
+  #
+  # 2024-09-18: These are now fixed.
+  #
+  do_preupdate_test 7.5.2.1 {
+    DELETE FROM t8 WHERE a = 'one'
+  } {
+    DELETE main t8 1 1   one two xxx
+  }
+  do_preupdate_test 7.5.2.2 {
+    UPDATE t8 SET b = 'five'
+  } {
+    UPDATE main t8 2 2   three four xxx  three five xxx
+  }
+}
+
+# This block of tests verifies that IPK values are correctly reported
+# by the sqlite3_preupdate_old() and sqlite3_preupdate_new() functions.
+#
+do_execsql_test 7.6.1 { CREATE TABLE t9(a, b INTEGER PRIMARY KEY, c) }
+do_preupdate_test 7.6.2 {
+  INSERT INTO t9 VALUES(1, 2, 3);
+  UPDATE t9 SET b = b+1, c = c+1;
+  DELETE FROM t9 WHERE a = 1;
+} {
+  INSERT main t9 2 2   1 2 3
+  UPDATE main t9 2 3   1 2 3   1 3 4
+  DELETE main t9 3 3   1 3 4
+}
+
+#--------------------------------------------------------------------------
+# Test that the sqlite3_preupdate_depth() API seems to work.
+#
+proc preupdate_hook {args} {
+  set type [lindex $args 0]
+  eval lappend ::preupdate $args
+  eval lappend ::preupdate [db preupdate depth]
+
+  if {$type != "INSERT"} {
+    for {set i 0} {$i < [db preupdate count]} {incr i} {
+      lappend ::preupdate [db preupdate old $i]
+    }
+  }
+  if {$type != "DELETE"} {
+    for {set i 0} {$i < [db preupdate count]} {incr i} {
+      set rc [catch { db preupdate new $i } v]
+      lappend ::preupdate $v
+    }
+  }
+}
+
+db close
+forcedelete test.db
+sqlite3 db test.db
+db preupdate hook preupdate_hook
+
+do_execsql_test 7.6.1 { 
+  CREATE TABLE t1(x PRIMARY KEY);
+  CREATE TABLE t2(x PRIMARY KEY);
+  CREATE TABLE t3(x PRIMARY KEY);
+  CREATE TABLE t4(x PRIMARY KEY);
+
+  CREATE TRIGGER a AFTER INSERT ON t1 BEGIN INSERT INTO t2 VALUES(new.x); END;
+  CREATE TRIGGER b AFTER INSERT ON t2 BEGIN INSERT INTO t3 VALUES(new.x); END;
+  CREATE TRIGGER c AFTER INSERT ON t3 BEGIN INSERT INTO t4 VALUES(new.x); END;
+
+  CREATE TRIGGER d AFTER UPDATE ON t1 BEGIN UPDATE t2 SET x = new.x; END;
+  CREATE TRIGGER e AFTER UPDATE ON t2 BEGIN UPDATE t3 SET x = new.x; END;
+  CREATE TRIGGER f AFTER UPDATE ON t3 BEGIN UPDATE t4 SET x = new.x; END;
+
+  CREATE TRIGGER g AFTER DELETE ON t1 BEGIN DELETE FROM t2 WHERE 1; END;
+  CREATE TRIGGER h AFTER DELETE ON t2 BEGIN DELETE FROM t3 WHERE 1; END;
+  CREATE TRIGGER i AFTER DELETE ON t3 BEGIN DELETE FROM t4 WHERE 1; END;
+}
+
+do_preupdate_test 7.6.2 {
+  INSERT INTO t1 VALUES('xyz');
+} {
+  INSERT main t1 1 1   0      xyz
+  INSERT main t2 1 1   1      xyz
+  INSERT main t3 1 1   2      xyz
+  INSERT main t4 1 1   3      xyz
+}
+do_preupdate_test 7.6.3 {
+  UPDATE t1 SET x = 'abc';
+} {
+  UPDATE main t1 1 1   0      xyz abc
+  UPDATE main t2 1 1   1      xyz abc
+  UPDATE main t3 1 1   2      xyz abc
+  UPDATE main t4 1 1   3      xyz abc
+}
+do_preupdate_test 7.6.4 {
+  DELETE FROM t1 WHERE 1;
+} {
+  DELETE main t1 1 1   0      abc
+  DELETE main t2 1 1   1      abc
+  DELETE main t3 1 1   2      abc
+  DELETE main t4 1 1   3      abc
+}
+
+do_execsql_test 7.6.5 { 
+  DROP TRIGGER a; DROP TRIGGER b; DROP TRIGGER c;
+  DROP TRIGGER d; DROP TRIGGER e; DROP TRIGGER f;
+  DROP TRIGGER g; DROP TRIGGER h; DROP TRIGGER i;
+
+  CREATE TRIGGER a BEFORE INSERT ON t1 BEGIN INSERT INTO t2 VALUES(new.x); END;
+  CREATE TRIGGER b BEFORE INSERT ON t2 BEGIN INSERT INTO t3 VALUES(new.x); END;
+  CREATE TRIGGER c BEFORE INSERT ON t3 BEGIN INSERT INTO t4 VALUES(new.x); END;
+
+  CREATE TRIGGER d BEFORE UPDATE ON t1 BEGIN UPDATE t2 SET x = new.x; END;
+  CREATE TRIGGER e BEFORE UPDATE ON t2 BEGIN UPDATE t3 SET x = new.x; END;
+  CREATE TRIGGER f BEFORE UPDATE ON t3 BEGIN UPDATE t4 SET x = new.x; END;
+
+  CREATE TRIGGER g BEFORE DELETE ON t1 BEGIN DELETE FROM t2 WHERE 1; END;
+  CREATE TRIGGER h BEFORE DELETE ON t2 BEGIN DELETE FROM t3 WHERE 1; END;
+  CREATE TRIGGER i BEFORE DELETE ON t3 BEGIN DELETE FROM t4 WHERE 1; END;
+}
+
+do_preupdate_test 7.6.6 {
+  INSERT INTO t1 VALUES('xyz');
+} {
+  INSERT main t4 1 1   3      xyz
+  INSERT main t3 1 1   2      xyz
+  INSERT main t2 1 1   1      xyz
+  INSERT main t1 1 1   0      xyz
+}
+do_preupdate_test 7.6.3 {
+  UPDATE t1 SET x = 'abc';
+} {
+  UPDATE main t4 1 1   3      xyz abc
+  UPDATE main t3 1 1   2      xyz abc
+  UPDATE main t2 1 1   1      xyz abc
+  UPDATE main t1 1 1   0      xyz abc
+}
+do_preupdate_test 7.6.4 {
+  DELETE FROM t1 WHERE 1;
+} {
+  DELETE main t4 1 1   3      abc
+  DELETE main t3 1 1   2      abc
+  DELETE main t2 1 1   1      abc
+  DELETE main t1 1 1   0      abc
+}
+
+# No preupdate callbacks for modifying sqlite_master.
+ifcapable altertable {
+  do_preupdate_test 8.1 { CREATE TABLE x1(x, y); } { }
+  do_preupdate_test 8.2 { ALTER TABLE x1 ADD COLUMN z } { }
+  do_preupdate_test 8.3 { ALTER TABLE x1 RENAME TO y1 } { }
+  do_preupdate_test 8.4 { CREATE INDEX y1x ON y1(x) } { }
+  do_preupdate_test 8.5 { CREATE VIEW v1 AS SELECT * FROM y1 } { }
+  do_preupdate_test 8.6 { DROP TABLE y1 } { }
+}
+
+#-------------------------------------------------------------------------
+reset_db
+db preupdate hook preupdate_hook
+
+ifcapable altertable {
+  do_execsql_test 9.0 {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+    CREATE TABLE t2(a, b INTEGER PRIMARY KEY);
+  }
+  do_preupdate_test 9.1 {
+    INSERT INTO t1 VALUES(456, NULL, NULL);
+  } {
+    INSERT main t1 456 456  0  456 {} {}
+  }
+  do_execsql_test 9.2 {
+    ALTER TABLE t1 ADD COLUMN d;
+  }
+  do_preupdate_test 9.3 {
+    INSERT INTO t1(a, b, c) VALUES(457, NULL, NULL);
+  } {
+    INSERT main t1 457 457  0  457 {} {} {}
+  }
+  do_preupdate_test 9.4 {
+    DELETE FROM t1 WHERE a=456
+  } {
+    DELETE main t1 456 456  0  456 {} {} {}
+  }
+  do_preupdate_test 9.5 {
+    INSERT INTO t2 DEFAULT VALUES;
+  } {
+    INSERT main t2 1 1  0  {} 1
+  } 
+  do_preupdate_test 9.6 {
+    INSERT INTO t1 DEFAULT VALUES;
+  } {
+    INSERT main t1 458 458  0  458 {} {} {}
+  } 
+}
+
+
+do_execsql_test 10.0 {
+  CREATE TABLE t3(a, b INTEGER PRIMARY KEY);
+}
+do_preupdate_test 10.1 {
+  INSERT INTO t3 DEFAULT VALUES
+} {
+  INSERT main t3 1 1 0 {} 1
+}
+do_execsql_test 10.2 { SELECT * FROM t3 } {{} 1}
+do_preupdate_test 10.3 {
+  DELETE FROM t3 WHERE b=1
+} {DELETE main t3 1 1 0 {} 1}
+
+#-------------------------------------------------------------------------
+# Test that the "update" hook is not fired for operations on the 
+# sqlite_stat1 table performed by ANALYZE, even if a pre-update hook is
+# registered.
+ifcapable analyze {
+  reset_db
+  do_execsql_test 11.1 {
+    CREATE TABLE t1(a, b);
+    CREATE INDEX idx1 ON t1(a);
+    CREATE INDEX idx2 ON t1(b);
+
+    INSERT INTO t1 VALUES(1, 2);
+    INSERT INTO t1 VALUES(3, 4);
+    INSERT INTO t1 VALUES(5, 6);
+    INSERT INTO t1 VALUES(7, 8);
+  }
+
+  db preupdate hook preupdate_cb
+  db update_hook update_cb
+
+  proc preupdate_cb {args} { lappend ::res "preupdate" $args }
+  proc update_cb {args} { lappend ::res "update" $args }
+
+  set ::res [list]
+  do_test 11.2 {
+    execsql ANALYZE
+    set ::res
+  } [list {*}{
+    preupdate {INSERT main sqlite_stat1 1 1}
+    preupdate {INSERT main sqlite_stat1 2 2}
+  }]
+
+  do_execsql_test 11.3 {
+    INSERT INTO t1 VALUES(9, 10);
+    INSERT INTO t1 VALUES(11, 12);
+    INSERT INTO t1 VALUES(13, 14);
+    INSERT INTO t1 VALUES(15, 16);
+  }
+
+  set ::res [list]
+  do_test 11.4 {
+    execsql ANALYZE
+    set ::res
+  } [list {*}{
+    preupdate {DELETE main sqlite_stat1 1 1}
+    preupdate {DELETE main sqlite_stat1 2 2}
+    preupdate {INSERT main sqlite_stat1 1 1}
+    preupdate {INSERT main sqlite_stat1 2 2}
+  }]
+}
+
+#-------------------------------------------------------------------------
+# Test that the pre-update hook is fired for INSERT statements that use
+# the xfer optimization on without rowid tables.
+#
+reset_db
+do_execsql_test 12.1 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+  CREATE TABLE t2(a INTEGER PRIMARY KEY, b) WITHOUT ROWID;
+
+  INSERT INTO t1 VALUES(1, 2);
+  INSERT INTO t1 VALUES(3, 4);
+  INSERT INTO t2 VALUES(5, 6);
+  INSERT INTO t2 VALUES(7, 8);
+
+  CREATE TABLE t3 (a INTEGER PRIMARY KEY, b) WITHOUT ROWID;
+}
+
+db preupdate hook preupdate_cb
+db update_hook update_cb
+
+proc preupdate_cb {args} { lappend ::res "preupdate" $args }
+proc update_cb {args} { lappend ::res "update" $args }
+
+set ::res [list]
+do_test 12.2 {
+  execsql VACUUM
+  set ::res
+} {}
+
+do_test 12.3 {
+  set ::res [list]
+  execsql { INSERT INTO t3 SELECT a, b FROM t2 }
+  set ::res
+} {preupdate {INSERT main t3 0 0} preupdate {INSERT main t3 0 0}}
+
+do_test 12.4 {
+  execsql { DELETE FROM t3 }
+  set ::res [list]
+  execsql { INSERT INTO t3 SELECT * FROM t2 }
+  set ::res
+} {preupdate {INSERT main t3 0 0} preupdate {INSERT main t3 0 0}}
+
+do_execsql_test 12.5 {
+  CREATE TABLE t4(a COLLATE nocase PRIMARY KEY, b) WITHOUT ROWID;
+  INSERT INTO t4 VALUES('abc', 1);
+  INSERT INTO t4 VALUES('DEF', 2);
+}
+
+set ::res [list]
+do_test 12.6 {
+  execsql VACUUM
+  set ::res
+} {}
+
+do_catchsql_test 12.6 {
+  INSERT INTO t4 VALUES('def', 3);
+} {1 {UNIQUE constraint failed: t4.a}}
+
+#-------------------------------------------------------------------------
+# Test adding non-NULL default values using ALTER TABLE.
+#
+reset_db
+db preupdate hook preupdate_hook
+do_execsql_test 13.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY);
+  INSERT INTO t1 VALUES(100), (200), (300), (400);
+}
+
+do_execsql_test 13.1 {
+  ALTER TABLE t1 ADD COLUMN b DEFAULT 1234;
+  ALTER TABLE t1 ADD COLUMN c DEFAULT 'abcdef';
+  ALTER TABLE t1 ADD COLUMN d DEFAULT NULL;
+}
+
+do_preupdate_test 13.2 {
+  DELETE FROM t1 WHERE a=300
+} {DELETE main t1 300 300 0 300 1234 abcdef {}}
+
+do_preupdate_test 13.3 {
+  UPDATE t1 SET d='hello world' WHERE a=200
+} {
+  UPDATE main t1 200 200 0 200 1234 abcdef {} 
+                           200 1234 abcdef {hello world}
+}
+
+do_preupdate_test 13.4 {
+  INSERT INTO t1 DEFAULT VALUES;
+} {
+  INSERT main t1 401 401 0 401 1234 abcdef {}
+}
+
+finish_test
diff --git a/test/hook2.test b/test/hook2.test
new file mode 100644
index 0000000000000000000000000000000000000000..9ae1103a7d9ad2890d782d9706806ba2f23e3e6f
--- /dev/null
+++ b/test/hook2.test
@@ -0,0 +1,218 @@
+# 2017 Jan 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# The tests in this file focus on the pre-update hook.
+# 
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix hook2
+
+ifcapable !preupdate {
+  finish_test
+  return
+}
+
+#-------------------------------------------------------------------------
+proc do_preupdate_test {tn sql x} {
+  set X [list]
+  foreach elem $x {lappend X $elem}
+  uplevel do_test $tn [list "
+    set ::preupdate \[list\]
+    execsql { $sql }
+    set ::preupdate
+  "] [list $X]
+}
+
+proc preupdate_hook {args} {
+  set type [lindex $args 0]
+  eval lappend ::preupdate $args
+  if {$type != "INSERT"} {
+    for {set i 0} {$i < [db preupdate count]} {incr i} {
+      lappend ::preupdate [db preupdate old $i]
+    }
+  }
+  if {$type != "DELETE"} {
+    for {set i 0} {$i < [db preupdate count]} {incr i} {
+      set rc [catch { db preupdate new $i } v]
+      lappend ::preupdate $v
+    }
+  }
+}
+
+#-------------------------------------------------------------------------
+# Simple tests - INSERT, UPDATE and DELETE on a WITHOUT ROWID table.
+#
+db preupdate hook preupdate_hook
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a PRIMARY KEY, b) WITHOUT ROWID;
+}
+do_preupdate_test 1.1 {
+  INSERT INTO t1 VALUES('one', 1);
+} {
+  INSERT main t1 0 0  one 1
+}
+do_preupdate_test 1.2 {
+  UPDATE t1 SET b=2 WHERE a='one';
+} {
+  UPDATE main t1 0 0  one 1 one 2
+}
+do_preupdate_test 1.3 {
+  DELETE FROM t1 WHERE a='one';
+} {
+  DELETE main t1 0 0  one 2
+}
+
+#-------------------------------------------------------------------------
+# Some more complex tests for the pre-update callback on WITHOUT ROWID
+# tables.
+#
+#   2.1.1 - INSERT statement.
+#   2.1.2 - INSERT INTO ... SELECT statement.
+#   2.1.3 - REPLACE INTO ... (PK conflict)
+#   2.1.4 - REPLACE INTO ... (other index conflicts)
+#   2.1.5 - REPLACE INTO ... (both PK and other index conflicts)
+#
+#   2.2.1 - DELETE statement.
+#   2.2.2 - DELETE statement that uses the truncate optimization.
+#
+#   2.3.1 - UPDATE statement.
+#   2.3.2 - UPDATE statement that modifies the PK.
+#   2.3.3 - UPDATE OR REPLACE ... (PK conflict).
+#   2.3.4 - UPDATE OR REPLACE ... (other index conflicts)
+#   2.3.4 - UPDATE OR REPLACE ... (both PK and other index conflicts)
+#
+do_execsql_test 2.0 {
+  CREATE TABLE t2(a DEFAULT 4, b, c, PRIMARY KEY(b, c)) WITHOUT ROWID;
+  CREATE UNIQUE INDEX t2a ON t2(a);
+}
+
+do_preupdate_test 2.1.1 {
+  INSERT INTO t2(b, c) VALUES(1, 1);
+} {
+  INSERT main t2 0 0  4 1 1
+}
+
+do_execsql_test 2.1.2.0 {
+  CREATE TABLE d1(a DEFAULT 4, b, c, PRIMARY KEY(b, c)) WITHOUT ROWID;
+  CREATE UNIQUE INDEX d1a ON d1(a);
+  INSERT INTO d1 VALUES(1, 2, 3);
+  INSERT INTO d1 VALUES(11, 12, 13);
+}
+do_preupdate_test 2.1.2.1 {
+  INSERT INTO t2 SELECT * FROM d1;
+} {
+  INSERT main t2 0 0  1 2 3
+  INSERT main t2 0 0  11 12 13
+}
+do_preupdate_test 2.1.2.2 {
+  INSERT INTO t2 SELECT a+20, b+20, c+20 FROM d1;
+} {
+  INSERT main t2 0 0  21 22 23
+  INSERT main t2 0 0  31 32 33
+}
+do_execsql_test 2.1.2.3 {
+  SELECT * FROM t2 ORDER BY b, c;
+} {
+  4 1 1
+  1 2 3
+  11 12 13
+  21 22 23
+  31 32 33
+}
+do_preupdate_test 2.1.3 {
+  REPLACE INTO t2 VALUES(45, 22, 23);
+} {
+  DELETE main t2 0 0 21 22 23
+  INSERT main t2 0 0 45 22 23
+}
+do_preupdate_test 2.1.4 {
+  REPLACE INTO t2 VALUES(11, 100, 100);
+} {
+  DELETE main t2 0 0 11 12 13
+  INSERT main t2 0 0 11 100 100
+}
+do_preupdate_test 2.1.5 {
+  REPLACE INTO t2(c, b) VALUES(33, 32)
+} {
+  DELETE main t2 0 0 4 1 1 
+  DELETE main t2 0 0 31 32 33
+  INSERT main t2 0 0 4 32 33
+}
+
+do_execsql_test 2.2.0 {
+  SELECT * FROM t2 ORDER BY b,c;
+} {
+  1    2   3 
+  45  22  23 
+  4   32  33 
+  11 100 100
+}
+do_preupdate_test 2.2.1 {
+  DELETE FROM t2 WHERE b=22;
+} {
+  DELETE main t2 0 0  45 22 23
+}
+do_preupdate_test 2.2.2 {
+  DELETE FROM t2;
+} {
+  DELETE main t2 0 0 1 2 3 
+  DELETE main t2 0 0 4 32 33 
+  DELETE main t2 0 0 11 100 100
+}
+
+do_execsql_test 2.3.0 {
+  CREATE TABLE t3(x, y PRIMARY KEY, z UNIQUE) WITHOUT ROWID;
+  INSERT INTO t3 VALUES('a', 'b', 'c');
+  INSERT INTO t3 VALUES('d', 'e', 'f');
+
+  INSERT INTO t3 VALUES(1, 1, 1);
+  INSERT INTO t3 VALUES(2, 2, 2);
+  INSERT INTO t3 VALUES(3, 3, 3);
+}
+
+do_preupdate_test 2.3.1 {
+  UPDATE t3 SET x=4 WHERE y IN ('b', 'e', 'x');
+} {
+  UPDATE main t3 0 0  a b c   4 b c
+  UPDATE main t3 0 0  d e f   4 e f
+}
+
+do_preupdate_test 2.3.2 {
+  UPDATE t3 SET y=y||y WHERE z IN('c', 'f');
+} {
+  UPDATE main t3 0 0  4 b c   4 bb c
+  UPDATE main t3 0 0  4 e f   4 ee f
+}
+
+do_preupdate_test 2.3.3 {
+  UPDATE OR REPLACE t3 SET y='bb' WHERE z='f'
+} {
+  DELETE main t3 0 0  4 bb c
+  UPDATE main t3 0 0  4 ee f   4 bb f
+}
+
+do_preupdate_test 2.3.4 {
+  UPDATE OR REPLACE t3 SET z=2 WHERE y=1;
+} {
+  DELETE main t3 0 0  2 2 2
+  UPDATE main t3 0 0  1 1 1  1 1 2
+}
+
+do_preupdate_test 2.3.5 {
+  UPDATE OR REPLACE t3 SET z=2, y='bb' WHERE y=3;
+} {
+  DELETE main t3 0 0  1 1 2
+  DELETE main t3 0 0  4 bb f
+  UPDATE main t3 0 0  3 3 3  3 bb 2
+}
+  
+
+finish_test
diff --git a/test/icu.test b/test/icu.test
new file mode 100644
index 0000000000000000000000000000000000000000..c1b5653d4fb440c0386c02d07b19f53b8cce43a0
--- /dev/null
+++ b/test/icu.test
@@ -0,0 +1,183 @@
+# 2007 May 1
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# $Id: icu.test,v 1.2 2008/07/12 14:52:20 drh Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !icu&&!icu_collations {
+  finish_test
+  return
+}
+
+# Create a table to work with.
+#
+execsql {CREATE TABLE test1(i1 int, i2 int, r1 real, r2 real, t1 text, t2 text)}
+execsql {INSERT INTO test1 VALUES(1,2,1.1,2.2,'hello','world')}
+proc test_expr {name settings expr result} {
+  do_test $name [format {
+    lindex [db eval {
+      BEGIN; 
+      UPDATE test1 SET %s; 
+      SELECT %s FROM test1; 
+      ROLLBACK;
+    }] 0
+  } $settings $expr] $result
+}
+
+ifcapable icu {
+
+  # Tests of the REGEXP operator.
+  #
+  test_expr icu-1.1 {i1='hello'} {i1 REGEXP 'hello'}  1
+  test_expr icu-1.2 {i1='hello'} {i1 REGEXP '.ello'}  1
+  test_expr icu-1.3 {i1='hello'} {i1 REGEXP '.ell'}   0
+  test_expr icu-1.4 {i1='hello'} {i1 REGEXP '.ell.*'} 1
+  test_expr icu-1.5 {i1=NULL}    {i1 REGEXP '.ell.*'} {}
+
+  # Some non-ascii characters with defined case mappings
+  #
+  set ::EGRAVE "\xC8"
+  set ::egrave "\xE8"
+
+  set ::OGRAVE "\xD2"
+  set ::ograve "\xF2"
+
+  # That German letter that looks a bit like a B. The
+  # upper-case version of which is "SS" (two characters).
+  #
+  set ::szlig "\xDF" 
+
+  # Tests of the upper()/lower() functions.
+  #
+  test_expr icu-2.1 {i1='HellO WorlD'} {upper(i1)} {HELLO WORLD}
+  test_expr icu-2.2 {i1='HellO WorlD'} {lower(i1)} {hello world}
+  test_expr icu-2.3 {i1=$::egrave} {lower(i1)}     $::egrave
+  test_expr icu-2.4 {i1=$::egrave} {upper(i1)}     $::EGRAVE
+  test_expr icu-2.5 {i1=$::ograve} {lower(i1)}     $::ograve
+  test_expr icu-2.6 {i1=$::ograve} {upper(i1)}     $::OGRAVE
+  test_expr icu-2.3 {i1=$::EGRAVE} {lower(i1)}     $::egrave
+  test_expr icu-2.4 {i1=$::EGRAVE} {upper(i1)}     $::EGRAVE
+  test_expr icu-2.5 {i1=$::OGRAVE} {lower(i1)}     $::ograve
+  test_expr icu-2.6 {i1=$::OGRAVE} {upper(i1)}     $::OGRAVE
+
+  test_expr icu-2.7 {i1=$::szlig} {upper(i1)}      "SS"
+  test_expr icu-2.8 {i1='SS'} {lower(i1)}          "ss"
+
+  do_execsql_test icu-2.9 {
+    SELECT upper(char(0xfb04,0xfb04,0xfb04,0xfb04));
+  } {FFLFFLFFLFFL}
+
+  # In turkish (locale="tr_TR"), the lower case version of I
+  # is "small dotless i" (code point 0x131 (decimal 305)).
+  #
+  set ::small_dotless_i "\u0131"
+  test_expr icu-3.1 {i1='I'} {lower(i1)}           "i"
+  test_expr icu-3.2 {i1='I'} {lower(i1, 'tr_tr')}  $::small_dotless_i
+  test_expr icu-3.3 {i1='I'} {lower(i1, 'en_AU')}  "i"
+}
+
+#--------------------------------------------------------------------
+# Test the collation sequence function.
+#
+do_test icu-4.1 {
+  execsql {
+    CREATE TABLE fruit(name);
+    INSERT INTO fruit VALUES('plum');
+    INSERT INTO fruit VALUES('cherry');
+    INSERT INTO fruit VALUES('apricot');
+    INSERT INTO fruit VALUES('peach');
+    INSERT INTO fruit VALUES('chokecherry');
+    INSERT INTO fruit VALUES('yamot');
+  }
+} {}
+do_test icu-4.2 {
+  execsql {
+    SELECT icu_load_collation('en_US', 'AmericanEnglish');
+    SELECT icu_load_collation('lt_LT', 'Lithuanian');
+  }
+  execsql {
+    SELECT name FROM fruit ORDER BY name COLLATE AmericanEnglish ASC;
+  }
+} {apricot cherry chokecherry peach plum yamot}
+
+
+# Test collation using Lithuanian rules. In the Lithuanian
+# alphabet, "y" comes right after "i".
+#
+do_test icu-4.3 {
+  execsql {
+    SELECT name FROM fruit ORDER BY name COLLATE Lithuanian ASC;
+  }
+} {apricot cherry chokecherry yamot peach plum}
+
+#-------------------------------------------------------------------------
+# Test that it is not possible to call the ICU regex() function with 
+# anything other than exactly two arguments. See also:
+#
+#   http://src.chromium.org/viewvc/chrome/trunk/src/third_party/sqlite/icu-regexp.patch?revision=34807&view=markup
+#
+ifcapable icu {
+  do_catchsql_test icu-5.1 { SELECT regexp('a[abc]c.*', 'abc') } {0 1}
+  do_catchsql_test icu-5.2 { 
+    SELECT regexp('a[abc]c.*') 
+  } {1 {wrong number of arguments to function regexp()}}
+  do_catchsql_test icu-5.3 { 
+    SELECT regexp('a[abc]c.*', 'abc', 'c') 
+  } {1 {wrong number of arguments to function regexp()}}
+  do_catchsql_test icu-5.4 { 
+    SELECT 'abc' REGEXP 'a[abc]c.*'
+  } {0 1}
+  do_catchsql_test icu-5.5 {SELECT 'abc' REGEXP }   {1 {incomplete input}}
+  do_catchsql_test icu-5.6 {SELECT 'abc' REGEXP, 1} {1 {near ",": syntax error}}
+ 
+  do_malloc_test icu-6.10 -sqlbody {
+    SELECT upper(char(0xfb04,0xdf,0xfb04,0xe8,0xfb04));
+  }
+}
+
+# 2020-03-19
+# The ESCAPE clause on LIKE takes precedence over wildcards
+#
+do_execsql_test icu-6.0 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(id INTEGER PRIMARY KEY, x TEXT);
+  INSERT INTO t1 VALUES
+    (1,'abcde'),
+    (2,'abc_'),
+    (3,'abc__'),
+    (4,'abc%'),
+    (5,'abc%%');
+  SELECT id FROM t1 WHERE x LIKE 'abc%%' ESCAPE '%';
+} {4}
+do_execsql_test icu-6.1 {
+  SELECT id FROM t1 WHERE x LIKE 'abc__' ESCAPE '_';
+} {2}
+
+# 2024-04-02
+# Optional 3rd argument to icu_load_collation() that specifies
+# the "strength" of comparison.
+#
+reset_db
+do_catchsql_test icu-7.1 {
+  SELECT icu_load_collation('en_US','error','xyzzy');
+} {1 {unknown collation strength "xyzzy" - should be one of: PRIMARY SECONDARY TERTIARY DEFAULT QUARTERNARY IDENTICAL}}
+do_execsql_test icu-7.2 {
+  SELECT icu_load_collation('en_US','prim','PRIMARY'),
+         icu_load_collation('en_US','dflt','DEFAULT');
+} {{} {}}
+do_execsql_test icu-7.3 {
+  SELECT char(0x100)=='a', char(0x100)=='a' COLLATE dflt, char(0x100)=='a' COLLATE prim;
+} {0 0 1}
+
+finish_test
diff --git a/test/ieee754.test b/test/ieee754.test
new file mode 100644
index 0000000000000000000000000000000000000000..bd806d2cf3386d9f7ac764cc2c1b37a654584004
--- /dev/null
+++ b/test/ieee754.test
@@ -0,0 +1,60 @@
+# 2015-11-06
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+# Tests of the iee754 extension
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+load_static_extension db ieee754
+
+foreach {id float rep} {
+   1       1.0                            1,0
+   2       2.0                            2,0
+   3       0.5                            1,-1
+   4       1.5                            3,-1
+   5       0.0                            0,-1075
+   6       4.9406564584124654e-324        1,-1074
+   7       2.2250738585072009e-308        4503599627370495,-1074
+   8       2.2250738585072014e-308        1,-1022
+} {
+  do_test ieee754-100-$id-1 {
+    db eval "SELECT ieee754($float);"
+  } "ieee754($rep)"
+  do_test ieee754-100-$id-2 {
+    db eval "SELECT ieee754($rep)==$float;"
+  } {1}
+  if {$float!=0.0} {
+    do_test ieee754-100-$id-3 {
+      db eval "SELECT ieee754(-$float);"
+    } "ieee754(-$rep)"
+    do_test ieee754-100-$id-4 {
+      db eval "SELECT ieee754(-$rep)==-$float;"
+    } {1}
+  }
+}
+
+do_test ieee754-110 {
+  string tolower [
+    db eval {SELECT ieee754(1,1024), ieee754(4503599627370495,972);}
+  ]
+} {inf 1.79769313486232e+308}
+do_test ieee754-111 {
+  string tolower [
+    db eval {SELECT ieee754(-1,1024), ieee754(-4503599627370495,972);}
+  ]
+} {-inf -1.79769313486232e+308}
+do_execsql_test ieee754-112 {
+  SELECT ieee754(4503599627370495,973) is null;
+} {1}
+
+finish_test
diff --git a/test/imposter1.test b/test/imposter1.test
new file mode 100644
index 0000000000000000000000000000000000000000..196767be15e45b8ed0e7a6c5cb70514c1448570b
--- /dev/null
+++ b/test/imposter1.test
@@ -0,0 +1,141 @@
+# 2015-01-30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements tests for SQLite library.
+#
+# The focus of this file is adding extra entries in the symbol table
+# using sqlite3_test_control(SQLITE_TESTCTRL_IMPOSTER) and verifying that
+# SQLite handles those as expected.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix imposter
+
+# Create a bunch of data to sort against
+#
+do_test imposter-1.0 {
+  execsql {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c, d NOT NULL);
+    CREATE INDEX t1b ON t1(b);
+    CREATE UNIQUE INDEX t1c ON t1(c);
+    WITH RECURSIVE c(i) AS (VALUES(1) UNION ALL SELECT i+1 FROM c WHERE i<30)
+      INSERT INTO t1(a,b,c,d) SELECT i,1000+i,2000+i,3000+i FROM c;
+  }
+  set t1_root [db one {SELECT rootpage FROM sqlite_master WHERE name='t1'}]
+  set t1b_root [db one {SELECT rootpage FROM sqlite_master WHERE name='t1b'}]
+  set t1c_root [db one {SELECT rootpage FROM sqlite_master WHERE name='t1c'}]
+
+  # Create an imposter table that uses the same b-tree as t1 but which does
+  # not have the indexes
+  #
+  sqlite3_test_control SQLITE_TESTCTRL_IMPOSTER db main 1 $t1_root
+  db eval {CREATE TABLE xt1(a,b,c,d)}
+
+  # And create an imposter table for the t1c index.
+  sqlite3_test_control SQLITE_TESTCTRL_IMPOSTER db main 1 $t1c_root
+  db eval {CREATE TABLE xt1c(c,rowid,PRIMARY KEY(c,rowid))WITHOUT ROWID;}
+
+  # Go out of imposter mode for now.
+  sqlite3_test_control SQLITE_TESTCTRL_IMPOSTER db main 0 0
+
+  # Create triggers to record changes to xt1.
+  #
+  db eval {
+    CREATE TEMP TABLE chnglog(desc TEXT);
+    CREATE TEMP TRIGGER xt1_del AFTER DELETE ON xt1 BEGIN
+      INSERT INTO chnglog VALUES(
+           printf('DELETE t1: rowid=%d, a=%s, b=%s, c=%s, d=%s',
+                  old.rowid, quote(old.a), quote(old.b), quote(old.c),
+                  quote(old.d)));
+    END;
+    CREATE TEMP TRIGGER xt1_ins AFTER INSERT ON xt1 BEGIN
+      INSERT INTO chnglog VALUES(
+           printf('INSERT t1:  rowid=%d, a=%s, b=%s, c=%s, d=%s',
+                  new.rowid, quote(new.a), quote(new.b), quote(new.c),
+                  quote(new.d)));
+    END;
+  }
+} {}
+
+# The xt1 table has separate xt1.rowid and xt1.a columns.  The xt1.rowid
+# column corresponds to t1.rowid and t1.a, but the xt1.a column is always
+# NULL
+#
+do_execsql_test imposter-1.1 {
+  SELECT rowid FROM xt1 WHERE a IS NOT NULL;
+} {}
+do_execsql_test imposter-1.2 {
+  SELECT a,b,c,d FROM t1 EXCEPT SELECT rowid,b,c,d FROM xt1;
+  SELECT rowid,b,c,d FROM xt1 EXCEPT SELECT a,b,c,d FROM t1;
+} {}
+
+
+# Make changes via the xt1 shadow table.  This will not update the
+# indexes on t1 nor check the uniqueness constraint on t1.c nor check
+# the NOT NULL constraint on t1.d, resulting in a logically inconsistent
+# database.
+#
+do_execsql_test imposter-1.3 {
+  DELETE FROM xt1 WHERE rowid=5;
+  INSERT INTO xt1(rowid,a,b,c,d) VALUES(99,'hello',1099,2022,NULL);
+  SELECT * FROM chnglog ORDER BY rowid;
+} [list \
+  {DELETE t1: rowid=5, a=NULL, b=1005, c=2005, d=3005} \
+  {INSERT t1:  rowid=99, a='hello', b=1099, c=2022, d=NULL} \
+]
+
+do_execsql_test imposter-1.4a {
+  PRAGMA integrity_check;
+} {/NULL value in t1.d/}
+do_execsql_test imposter-1.4b {
+  PRAGMA integrity_check;
+} {/row # missing from index t1b/}
+do_execsql_test imposter-1.4c {
+  PRAGMA integrity_check;
+} {/row # missing from index t1c/}
+
+# Cleanup the corruption.
+# Then demonstrate that the xt1c imposter table can insert non-unique
+# and NULL values into the UNIQUE index.
+#
+do_execsql_test imposter-2.0 {
+  DELETE FROM t1;
+  WITH RECURSIVE c(i) AS (VALUES(1) UNION ALL SELECT i+1 FROM c WHERE i<10)
+   INSERT INTO t1(a,b,c,d) SELECT i,i,i,i FROM c;
+  UPDATE xt1c SET c=NULL WHERE rowid=5;
+  PRAGMA integrity_check;
+} {/row # missing from index t1c/}
+
+do_execsql_test imposter-2.1 {
+  DELETE FROM t1;
+  WITH RECURSIVE c(i) AS (VALUES(1) UNION ALL SELECT i+1 FROM c WHERE i<10)
+   INSERT INTO t1(a,b,c,d) SELECT i,i,i,i FROM c;
+  UPDATE xt1c SET c=99 WHERE rowid IN (5,7,9);
+  SELECT c FROM t1 ORDER BY c;
+} {1 2 3 4 6 8 10 99 99 99}
+do_execsql_test imposter-2.2 {
+  UPDATE xt1 SET c=99 WHERE rowid IN (5,7,9);
+  PRAGMA integrity_check;
+} {/non-unique entry in index t1c/}
+
+# Erase the imposter tables
+#
+do_test imposter-3.1 {
+  sqlite3_test_control SQLITE_TESTCTRL_IMPOSTER db main 0 1
+  db eval {
+    DELETE FROM t1 WHERE rowid IN (5,7,9);
+    PRAGMA integrity_check;
+  }
+} {ok}
+
+
+finish_test
diff --git a/test/in.test b/test/in.test
new file mode 100644
index 0000000000000000000000000000000000000000..601c7e3b4d042b2b7973cd9788ce7fb19035a0bf
--- /dev/null
+++ b/test/in.test
@@ -0,0 +1,863 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the IN and BETWEEN operator.
+#
+# $Id: in.test,v 1.22 2008/08/04 03:51:24 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Generate the test data we will need for the first squences of tests.
+#
+do_test in-1.0 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t1(a int, b int);
+  }
+  for {set i 1} {$i<=10} {incr i} {
+    execsql "INSERT INTO t1 VALUES($i,[expr {1<<$i}])"
+  }
+  execsql {
+    COMMIT;
+    SELECT count(*) FROM t1;
+  }
+} {10}
+
+# Do basic testing of BETWEEN.
+#
+do_test in-1.1 {
+  execsql {SELECT a FROM t1 WHERE b BETWEEN 10 AND 50 ORDER BY a}
+} {4 5}
+do_test in-1.2 {
+  execsql {SELECT a FROM t1 WHERE b NOT BETWEEN 10 AND 50 ORDER BY a}
+} {1 2 3 6 7 8 9 10}
+do_test in-1.3 {
+  execsql {SELECT a FROM t1 WHERE b BETWEEN a AND a*5 ORDER BY a}
+} {1 2 3 4}
+do_test in-1.4 {
+  execsql {SELECT a FROM t1 WHERE b NOT BETWEEN a AND a*5 ORDER BY a}
+} {5 6 7 8 9 10}
+do_test in-1.6 {
+  execsql {SELECT a FROM t1 WHERE b BETWEEN a AND a*5 OR b=512 ORDER BY a}
+} {1 2 3 4 9}
+do_test in-1.7 {
+  execsql {SELECT a+ 100*(a BETWEEN 1 and 3) FROM t1 ORDER BY b}
+} {101 102 103 4 5 6 7 8 9 10}
+
+# The rest of this file concentrates on testing the IN operator.
+# Skip this if the library is compiled with SQLITE_OMIT_SUBQUERY 
+# (because the IN operator is unavailable).
+#
+ifcapable !subquery {
+  finish_test
+  return
+}
+
+# Testing of the IN operator using static lists on the right-hand side.
+#
+do_test in-2.1 {
+  execsql {SELECT a FROM t1 WHERE b IN (8,12,16,24,32) ORDER BY a}
+} {3 4 5}
+do_test in-2.2 {
+  execsql {SELECT a FROM t1 WHERE b NOT IN (8,12,16,24,32) ORDER BY a}
+} {1 2 6 7 8 9 10}
+do_test in-2.3 {
+  execsql {SELECT a FROM t1 WHERE b IN (8,12,16,24,32) OR b=512 ORDER BY a}
+} {3 4 5 9}
+do_test in-2.4 {
+  execsql {SELECT a FROM t1 WHERE b NOT IN (8,12,16,24,32) OR b=512 ORDER BY a}
+} {1 2 6 7 8 9 10}
+do_test in-2.5 {
+  execsql {SELECT a+100*(b IN (8,16,24)) FROM t1 ORDER BY b}
+} {1 2 103 104 5 6 7 8 9 10}
+
+do_test in-2.6 {
+  execsql {SELECT a FROM t1 WHERE b IN (b+8,64)}
+} {6}
+do_test in-2.7 {
+  execsql {SELECT a FROM t1 WHERE b IN (max(5,10,b),20)}
+} {4 5 6 7 8 9 10}
+do_test in-2.8 {
+  execsql {SELECT a FROM t1 WHERE b IN (8*2,64/2) ORDER BY b}
+} {4 5}
+do_test in-2.9 {
+  execsql {SELECT a FROM t1 WHERE b IN (max(5,10),20)}
+} {}
+do_test in-2.10 {
+  execsql {SELECT a FROM t1 WHERE min(0,b IN (a,30))}
+} {}
+do_test in-2.11 {
+  set v [catch {execsql {SELECT a FROM t1 WHERE c IN (10,20)}} msg]
+  lappend v $msg
+} {1 {no such column: c}}
+
+# Testing the IN operator where the right-hand side is a SELECT
+#
+do_test in-3.1 {
+  execsql {
+    SELECT a FROM t1
+    WHERE b IN (SELECT b FROM t1 WHERE a<5)
+    ORDER BY a
+  }
+} {1 2 3 4}
+do_test in-3.2 {
+  execsql {
+    SELECT a FROM t1
+    WHERE b IN (SELECT b FROM t1 WHERE a<5) OR b==512
+    ORDER BY a
+  }
+} {1 2 3 4 9}
+do_test in-3.3 {
+  execsql {
+    SELECT a + 100*(b IN (SELECT b FROM t1 WHERE a<5)) FROM t1 ORDER BY b
+  }
+} {101 102 103 104 5 6 7 8 9 10}
+
+# Make sure the UPDATE and DELETE commands work with IN-SELECT
+#
+do_test in-4.1 {
+  execsql {
+    UPDATE t1 SET b=b*2 
+    WHERE b IN (SELECT b FROM t1 WHERE a>8)
+  }
+  execsql {SELECT b FROM t1 ORDER BY b}
+} {2 4 8 16 32 64 128 256 1024 2048}
+do_test in-4.2 {
+  execsql {
+    DELETE FROM t1 WHERE b IN (SELECT b FROM t1 WHERE a>8)
+  }
+  execsql {SELECT a FROM t1 ORDER BY a}
+} {1 2 3 4 5 6 7 8}
+do_test in-4.3 {
+  execsql {
+    DELETE FROM t1 WHERE b NOT IN (SELECT b FROM t1 WHERE a>4)
+  }
+  execsql {SELECT a FROM t1 ORDER BY a}
+} {5 6 7 8}
+
+# Do an IN with a constant RHS but where the RHS has many, many
+# elements.  We need to test that collisions in the hash table
+# are resolved properly.
+#
+do_test in-5.1 {
+  execsql {
+    INSERT INTO t1 VALUES('hello', 'world');
+    SELECT * FROM t1
+    WHERE a IN (
+       'Do','an','IN','with','a','constant','RHS','but','where','the',
+       'has','many','elements','We','need','to','test','that',
+       'collisions','hash','table','are','resolved','properly',
+       'This','in-set','contains','thirty','one','entries','hello');
+  }
+} {hello world}
+
+# Make sure the IN operator works with INTEGER PRIMARY KEY fields.
+#
+do_test in-6.1 {
+  execsql {
+    CREATE TABLE ta(a INTEGER PRIMARY KEY, b);
+    INSERT INTO ta VALUES(1,1);
+    INSERT INTO ta VALUES(2,2);
+    INSERT INTO ta VALUES(3,3);
+    INSERT INTO ta VALUES(4,4);
+    INSERT INTO ta VALUES(6,6);
+    INSERT INTO ta VALUES(8,8);
+    INSERT INTO ta VALUES(10,
+       'This is a key that is long enough to require a malloc in the VDBE');
+    SELECT * FROM ta WHERE a<10;
+  }
+} {1 1 2 2 3 3 4 4 6 6 8 8}
+do_test in-6.2 {
+  execsql {
+    CREATE TABLE tb(a INTEGER PRIMARY KEY, b);
+    INSERT INTO tb VALUES(1,1);
+    INSERT INTO tb VALUES(2,2);
+    INSERT INTO tb VALUES(3,3);
+    INSERT INTO tb VALUES(5,5);
+    INSERT INTO tb VALUES(7,7);
+    INSERT INTO tb VALUES(9,9);
+    INSERT INTO tb VALUES(11,
+       'This is a key that is long enough to require a malloc in the VDBE');
+    SELECT * FROM tb WHERE a<10;
+  }
+} {1 1 2 2 3 3 5 5 7 7 9 9}
+do_test in-6.3 {
+  execsql {
+    SELECT a FROM ta WHERE b IN (SELECT a FROM tb);
+  }
+} {1 2 3}
+do_test in-6.4 {
+  execsql {
+    SELECT a FROM ta WHERE b NOT IN (SELECT a FROM tb);
+  }
+} {4 6 8 10}
+do_test in-6.5 {
+  execsql {
+    SELECT a FROM ta WHERE b IN (SELECT b FROM tb);
+  }
+} {1 2 3 10}
+do_test in-6.6 {
+  execsql {
+    SELECT a FROM ta WHERE b NOT IN (SELECT b FROM tb);
+  }
+} {4 6 8}
+do_test in-6.7 {
+  execsql {
+    SELECT a FROM ta WHERE a IN (SELECT a FROM tb);
+  }
+} {1 2 3}
+do_test in-6.8 {
+  execsql {
+    SELECT a FROM ta WHERE a NOT IN (SELECT a FROM tb);
+  }
+} {4 6 8 10}
+do_test in-6.9 {
+  execsql {
+    SELECT a FROM ta WHERE a IN (SELECT b FROM tb);
+  }
+} {1 2 3}
+do_test in-6.10 {
+  execsql {
+    SELECT a FROM ta WHERE a NOT IN (SELECT b FROM tb);
+  }
+} {4 6 8 10}
+
+# Tests of IN operator against empty sets.  (Ticket #185)
+#
+do_test in-7.1 {
+  execsql {
+    SELECT a FROM t1 WHERE a IN ();
+  }
+} {}
+do_test in-7.2 {
+  execsql {
+    SELECT a FROM t1 WHERE a IN (5);
+  }
+} {5}
+do_test in-7.3 {
+  execsql {
+    SELECT a FROM t1 WHERE a NOT IN () ORDER BY a;
+  }
+} {5 6 7 8 hello}
+do_test in-7.4 {
+  execsql {
+    SELECT a FROM t1 WHERE a IN (5) AND b IN ();
+  }
+} {}
+do_test in-7.5 {
+  execsql {
+    SELECT a FROM t1 WHERE a IN (5) AND b NOT IN ();
+  }
+} {5}
+do_test in-7.6.1 {
+  execsql {
+    SELECT a FROM ta WHERE a IN ();
+  }
+} {}
+do_test in-7.6.2 {
+  db status step
+} {0}
+do_test in-7.7 {
+  execsql {
+    SELECT a FROM ta WHERE a NOT IN ();
+  }
+} {1 2 3 4 6 8 10}
+
+do_test in-7.8.1 {
+  execsql {
+    SELECT * FROM ta LEFT JOIN tb ON (ta.b=tb.b) WHERE ta.a IN ();
+  }
+} {}
+do_test in-7.8.2 {
+  db status step
+} {0}
+
+do_test in-8.3 {
+  execsql {
+    SELECT b FROM t1 WHERE a IN ('hello','there')
+  }
+} {world}
+do_test in-8.4 {
+  sqlite3_db_config db SQLITE_DBCONFIG_DQS_DML 1
+  execsql {
+    SELECT b FROM t1 WHERE a IN ("hello",'there')
+  }
+} {world}
+
+# Test constructs of the form:  expr IN tablename
+#
+do_test in-9.1 {
+  execsql {
+    CREATE TABLE t4 AS SELECT a FROM tb;
+    SELECT * FROM t4;    
+  }
+} {1 2 3 5 7 9 11}
+do_test in-9.2 {
+  execsql {
+    SELECT b FROM t1 WHERE a IN t4;
+  }
+} {32 128}
+do_test in-9.3 {
+  execsql {
+    SELECT b FROM t1 WHERE a NOT IN t4;
+  }
+} {64 256 world}
+do_test in-9.4 {
+  catchsql {
+    SELECT b FROM t1 WHERE a NOT IN tb;
+  }
+} {1 {sub-select returns 2 columns - expected 1}}
+
+# IN clauses in CHECK constraints.  Ticket #1645
+#
+do_test in-10.1 {
+  execsql {
+    CREATE TABLE t5(
+      a INTEGER,
+      CHECK( a IN (111,222,333) )
+    );
+    INSERT INTO t5 VALUES(111);
+    SELECT * FROM t5;
+  }
+} {111}
+do_test in-10.2 {
+  catchsql {
+    INSERT INTO t5 VALUES(4);
+  }
+} {1 {CHECK constraint failed: a IN (111,222,333)}}
+
+# Ticket #1821
+#
+# Type affinity applied to the right-hand side of an IN operator.
+#
+do_test in-11.1 {
+  execsql {
+    CREATE TABLE t6(a,b NUMERIC);
+    INSERT INTO t6 VALUES(1,2);
+    INSERT INTO t6 VALUES(2,3);
+    SELECT * FROM t6 WHERE b IN (2);
+  }
+} {1 2}
+do_test in-11.2 {
+  # The '2' should be coerced into 2 because t6.b is NUMERIC
+  execsql {
+    SELECT * FROM t6 WHERE b IN ('2');
+  }
+} {1 2}
+do_test in-11.3 {
+  # No coercion should occur here because of the unary + before b.
+  execsql {
+    SELECT * FROM t6 WHERE +b IN ('2');
+  }
+} {}
+do_test in-11.4 {
+  # No coercion because column a as affinity NONE
+  execsql {
+    SELECT * FROM t6 WHERE a IN ('2');
+  }
+} {}
+do_test in-11.5 {
+  execsql {
+    SELECT * FROM t6 WHERE a IN (2);
+  }
+} {2 3}
+do_test in-11.6 {
+  # No coercion because column a as affinity NONE
+  execsql {
+    SELECT * FROM t6 WHERE +a IN ('2');
+  }
+} {}
+
+# Test error conditions with expressions of the form IN(<compound select>).
+#
+ifcapable compound {
+do_test in-12.1 {
+  execsql {
+    CREATE TABLE t2(a, b, c);
+    CREATE TABLE t3(a, b, c);
+  }
+} {}
+do_test in-12.2 {
+  catchsql {
+    SELECT * FROM t2 WHERE a IN (
+      SELECT a, b FROM t3 UNION ALL SELECT a, b FROM t2
+    );
+  }
+} {1 {sub-select returns 2 columns - expected 1}}
+do_test in-12.3 {
+  catchsql {
+    SELECT * FROM t2 WHERE a IN (
+      SELECT a, b FROM t3 UNION SELECT a, b FROM t2
+    );
+  }
+} {1 {sub-select returns 2 columns - expected 1}}
+do_test in-12.4 {
+  catchsql {
+    SELECT * FROM t2 WHERE a IN (
+      SELECT a, b FROM t3 EXCEPT SELECT a, b FROM t2
+    );
+  }
+} {1 {sub-select returns 2 columns - expected 1}}
+do_test in-12.5 {
+  catchsql {
+    SELECT * FROM t2 WHERE a IN (
+      SELECT a, b FROM t3 INTERSECT SELECT a, b FROM t2
+    );
+  }
+} {1 {sub-select returns 2 columns - expected 1}}
+do_test in-12.6 {
+  catchsql {
+    SELECT * FROM t2 WHERE a IN (
+      SELECT a, b FROM t3 UNION ALL SELECT a FROM t2
+    );
+  }
+} {1 {SELECTs to the left and right of UNION ALL do not have the same number of result columns}}
+do_test in-12.7 {
+  catchsql {
+    SELECT * FROM t2 WHERE a IN (
+      SELECT a, b FROM t3 UNION SELECT a FROM t2
+    );
+  }
+} {1 {SELECTs to the left and right of UNION do not have the same number of result columns}}
+do_test in-12.8 {
+  catchsql {
+    SELECT * FROM t2 WHERE a IN (
+      SELECT a, b FROM t3 EXCEPT SELECT a FROM t2
+    );
+  }
+} {1 {SELECTs to the left and right of EXCEPT do not have the same number of result columns}}
+do_test in-12.9 {
+  catchsql {
+    SELECT * FROM t2 WHERE a IN (
+      SELECT a, b FROM t3 INTERSECT SELECT a FROM t2
+    );
+  }
+} {1 {SELECTs to the left and right of INTERSECT do not have the same number of result columns}}
+}
+
+ifcapable compound {
+do_test in-12.10 {
+  catchsql {
+    SELECT * FROM t2 WHERE a IN (
+      SELECT a FROM t3 UNION ALL SELECT a, b FROM t2
+    );
+  }
+} {1 {SELECTs to the left and right of UNION ALL do not have the same number of result columns}}
+do_test in-12.11 {
+  catchsql {
+    SELECT * FROM t2 WHERE a IN (
+      SELECT a FROM t3 UNION SELECT a, b FROM t2
+    );
+  }
+} {1 {SELECTs to the left and right of UNION do not have the same number of result columns}}
+do_test in-12.12 {
+  catchsql {
+    SELECT * FROM t2 WHERE a IN (
+      SELECT a FROM t3 EXCEPT SELECT a, b FROM t2
+    );
+  }
+} {1 {SELECTs to the left and right of EXCEPT do not have the same number of result columns}}
+do_test in-12.13 {
+  catchsql {
+    SELECT * FROM t2 WHERE a IN (
+      SELECT a FROM t3 INTERSECT SELECT a, b FROM t2
+    );
+  }
+} {1 {SELECTs to the left and right of INTERSECT do not have the same number of result columns}}
+do_test in-12.14 {
+  catchsql {
+    SELECT * FROM t2 WHERE a IN (
+      SELECT a, b FROM t3 UNION ALL SELECT a, b FROM t2
+    );
+  }
+} {1 {sub-select returns 2 columns - expected 1}}
+do_test in-12.15 {
+  catchsql {
+    SELECT * FROM t2 WHERE a IN (
+      SELECT a, b FROM t3 UNION ALL SELECT a FROM t2
+    );
+  }
+} {1 {SELECTs to the left and right of UNION ALL do not have the same number of result columns}}
+}; #ifcapable compound
+
+
+#------------------------------------------------------------------------
+# The following tests check that NULL is handled correctly when it 
+# appears as part of a set of values on the right-hand side of an
+# IN or NOT IN operator.
+#
+# When it appears in such a set, NULL is handled as an "unknown value".
+# If, because of the unknown value in the set, the result of the expression 
+# cannot be determined, then it itself evaluates to NULL.
+#
+
+# Warm body test to demonstrate the principles being tested:
+#
+do_test in-13.1 {
+  db nullvalue "null"
+  execsql { SELECT 
+    1 IN (NULL, 1, 2),     -- The value 1 is a member of the set, return true.
+    3 IN (NULL, 1, 2),     -- Ambiguous, return NULL.
+    1 NOT IN (NULL, 1, 2), -- The value 1 is a member of the set, return false.
+    3 NOT IN (NULL, 1, 2)  -- Ambiguous, return NULL.
+  }
+} {1 null 0 null}
+
+do_test in-13.2 {
+  execsql { 
+    CREATE TABLE t7(a, b, c NOT NULL);
+    INSERT INTO t7 VALUES(1,    1, 1);
+    INSERT INTO t7 VALUES(2,    2, 2);
+    INSERT INTO t7 VALUES(3,    3, 3);
+    INSERT INTO t7 VALUES(NULL, 4, 4);
+    INSERT INTO t7 VALUES(NULL, 5, 5);
+  }
+} {}
+
+do_test in-13.3 {
+  execsql { SELECT 2 IN (SELECT a FROM t7) }
+} {1}
+do_test in-13.4 {
+  execsql { SELECT 6 IN (SELECT a FROM t7) }
+} {null}
+
+do_test in-13.5 {
+  execsql { SELECT 2 IN (SELECT b FROM t7) }
+} {1}
+do_test in-13.6 {
+  execsql { SELECT 6 IN (SELECT b FROM t7) }
+} {0}
+
+do_test in-13.7 {
+  execsql { SELECT 2 IN (SELECT c FROM t7) }
+} {1}
+do_test in-13.8 {
+  execsql { SELECT 6 IN (SELECT c FROM t7) }
+} {0}
+
+do_test in-13.9 {
+  execsql {
+    SELECT
+      2 NOT IN (SELECT a FROM t7),
+      6 NOT IN (SELECT a FROM t7),
+      2 NOT IN (SELECT b FROM t7),
+      6 NOT IN (SELECT b FROM t7),
+      2 NOT IN (SELECT c FROM t7),
+      6 NOT IN (SELECT c FROM t7)
+  } 
+} {0 null 0 1 0 1}
+
+do_test in-13.10 {
+  execsql { 
+    SELECT b IN (
+      SELECT inside.a 
+      FROM t7 AS inside 
+      WHERE inside.b BETWEEN outside.b+1 AND outside.b+2
+    )
+    FROM t7 AS outside ORDER BY b;
+  }
+} {0 null null null 0}
+
+do_test in-13.11 {
+  execsql {
+    SELECT b NOT IN (
+      SELECT inside.a 
+      FROM t7 AS inside 
+      WHERE inside.b BETWEEN outside.b+1 AND outside.b+2
+    )
+    FROM t7 AS outside ORDER BY b;
+  }
+} {1 null null null 1}
+
+do_test in-13.12 {
+  execsql {
+    CREATE INDEX i1 ON t7(a);
+    CREATE INDEX i2 ON t7(b);
+    CREATE INDEX i3 ON t7(c);
+  }
+  execsql {
+    SELECT
+      2 IN (SELECT a FROM t7),
+      6 IN (SELECT a FROM t7),
+      2 IN (SELECT b FROM t7),
+      6 IN (SELECT b FROM t7),
+      2 IN (SELECT c FROM t7),
+      6 IN (SELECT c FROM t7)
+  } 
+} {1 null 1 0 1 0}
+
+do_test in-13.13 {
+  execsql {
+    SELECT
+      2 NOT IN (SELECT a FROM t7),
+      6 NOT IN (SELECT a FROM t7),
+      2 NOT IN (SELECT b FROM t7),
+      6 NOT IN (SELECT b FROM t7),
+      2 NOT IN (SELECT c FROM t7),
+      6 NOT IN (SELECT c FROM t7)
+  } 
+} {0 null 0 1 0 1}
+
+do_test in-13.14 {
+  execsql {
+    BEGIN TRANSACTION;
+    CREATE TABLE a(id INTEGER);
+    INSERT INTO a VALUES(1);
+    INSERT INTO a VALUES(2);
+    INSERT INTO a VALUES(3);
+    CREATE TABLE b(id INTEGER);
+    INSERT INTO b VALUES(NULL);
+    INSERT INTO b VALUES(3);
+    INSERT INTO b VALUES(4);
+    INSERT INTO b VALUES(5);
+    COMMIT;
+    SELECT * FROM a WHERE id NOT IN (SELECT id FROM b);
+  }
+} {}
+do_test in-13.14 {
+  execsql {
+    CREATE INDEX i5 ON b(id);
+    SELECT * FROM a WHERE id NOT IN (SELECT id FROM b);
+  }
+} {}
+
+do_test in-13.15 {
+  catchsql {
+    SELECT 0 WHERE (SELECT 0,0) OR (0 IN (1,2));
+  }
+} {1 {sub-select returns 2 columns - expected 1}}
+
+
+do_test in-13.X {
+  db nullvalue ""
+} {}
+
+# At one point the following was causing valgrind to report a "jump
+# depends on unitialized location" problem.
+#
+do_execsql_test in-14.0 {
+  CREATE TABLE c1(a);
+  INSERT INTO c1 VALUES(1), (2), (4), (3);
+}
+do_execsql_test in-14.1 {
+  SELECT * FROM c1 WHERE a IN (SELECT a FROM c1) ORDER BY 1
+} {1 2 3 4}
+
+# 2019-02-20 Ticket https://www.sqlite.org/src/tktview/df46dfb631f75694fbb97033b69
+#
+do_execsql_test in-15.0 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE IF NOT EXISTS t1(id INTEGER PRIMARY KEY);
+  INSERT INTO t1 VALUES(1);
+  SELECT a.id FROM t1 AS a JOIN t1 AS b ON a.id=b.id WHERE a.id IN (1,2,3);
+} {1}
+do_execsql_test in-15.1 {
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t2(a INTEGER PRIMARY KEY,b);
+  INSERT INTO t2 VALUES(1,11);
+  INSERT INTO t2 VALUES(2,22);
+  INSERT INTO t2 VALUES(3,33);
+  SELECT b, a IN (3,4,5) FROM t2 ORDER BY b;
+} {11 0 22 0 33 1}
+do_execsql_test in-15.2 {
+  DROP TABLE IF EXISTS t3;
+  CREATE TABLE t3(x INTEGER PRIMARY KEY);
+  INSERT INTO t3 VALUES(8);
+  SELECT CASE WHEN x NOT IN (5,6,7) THEN 'yes' ELSE 'no' END FROM t3;
+  SELECT CASE WHEN x NOT IN (NULL,6,7) THEN 'yes' ELSE 'no' END FROM t3;
+} {yes no}
+do_execsql_test in-15.3 {
+  SELECT CASE WHEN x NOT IN (5,6,7) OR x=0 THEN 'yes' ELSE 'no' END FROM t3;
+  SELECT CASE WHEN x NOT IN (NULL,6,7) OR x=0 THEN 'yes' ELSE 'no' END FROM t3;
+} {yes no}
+do_execsql_test in-15.4 {
+  DROP TABLE IF EXISTS t4;
+  CREATE TABLE t4(a INTEGER PRIMARY KEY, b INT);
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<20)
+    INSERT INTO t4(a,b) SELECT x, x+100 FROM c;
+  SELECT b FROM t4 WHERE a IN (3,null,8) ORDER BY +b;
+} {103 108}
+do_execsql_test in-15.5 {
+  SELECT b FROM t4 WHERE a NOT IN (3,null,8);
+} {}
+do_execsql_test in-15.6 {
+  DROP TABLE IF EXISTS t5;
+  DROP TABLE IF EXISTS t6;
+  CREATE TABLE t5(id INTEGER PRIMARY KEY, name TEXT);
+  CREATE TABLE t6(id INTEGER PRIMARY KEY, name TEXT, t5_id INT);
+  INSERT INTO t5 VALUES(1,'Alice'),(2,'Emma');
+  INSERT INTO t6 VALUES(1,'Bob',1),(2,'Cindy',1),(3,'Dave',2);
+  SELECT a.*
+    FROM t5 AS 'a' JOIN t5 AS 'b' ON b.id=a.id
+   WHERE b.id IN (
+          SELECT t6.t5_id
+            FROM t6
+           WHERE name='Bob'
+             AND t6.t5_id IS NOT NULL
+             AND t6.id IN (
+                  SELECT id
+                    FROM (SELECT t6.id, count(*) AS x
+                            FROM t6
+                           WHERE name='Bob'
+                         ) AS 't'
+                   WHERE x=1
+                 )
+             AND t6.id IN (1,id)
+         );
+} {1 Alice}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test in-16.0 {
+  CREATE TABLE x1(a, b);
+  INSERT INTO x1(a) VALUES(1), (2), (3), (4), (5), (6);
+  CREATE INDEX x1i ON x1(a, b);
+}
+
+do_execsql_test in-16.1 {
+  SELECT * FROM x1 
+  WHERE a IN (SELECT a FROM x1 WHERE (a%2)==0) 
+  ORDER BY a DESC, b;
+} {6 {} 4 {} 2 {}}
+
+do_execsql_test in-16.2 {
+  SELECT * FROM x1 
+  WHERE a IN (SELECT a FROM x1 WHERE (a%7)==0) 
+  ORDER BY a DESC, b;
+} {}
+
+# 2019-06-11
+# https://www.sqlite.org/src/info/57353f8243c637c0
+#
+do_execsql_test in-17.1 {
+  SELECT 1 IN ('1');
+} 0
+do_execsql_test in-17.2 {
+  SELECT 1 IN ('1' COLLATE nocase);
+} 0
+do_execsql_test in-17.3 {
+  SELECT 1 IN (CAST('1' AS text));
+} 0
+do_execsql_test in-17.4 {
+  SELECT 1 IN (CAST('1' AS text) COLLATE nocase);
+} 0
+
+# 2019-08-27 ticket https://sqlite.org/src/info/dbaf8a6820be1ece
+# 
+do_execsql_test in-18.1 {
+  DROP TABLE IF EXISTS t0;
+  CREATE TABLE t0(c0 INT UNIQUE);
+  INSERT INTO t0(c0) VALUES (1);
+  SELECT * FROM t0 WHERE '1' IN (t0.c0);
+} {}
+
+# 2019-09-02 ticket https://www.sqlite.org/src/info/2841e99d104c6436
+# For the IN_INDEX_NOOP optimization, apply REAL affinity to the LHS
+# values prior to comparison if the RHS has REAL affinity.
+#
+# Also ticket https://sqlite.org/src/info/29f635e0af71234b
+#
+do_execsql_test in-19.10 {
+  DROP TABLE IF EXISTS t0;
+  CREATE TABLE t0(c0 REAL UNIQUE);
+  INSERT INTO t0(c0) VALUES(2.0625E00);
+  SELECT 1 FROM t0 WHERE c0 IN ('2.0625');
+} {1}
+do_execsql_test in-19.20 {
+  SELECT c0 IN ('2.0625') FROM t0;
+} {1}
+do_execsql_test in-19.21 {
+  SELECT c0 = ('2.0625') FROM t0;
+} {1}
+do_execsql_test in-19.22 {
+  SELECT c0 = ('0.20625e+01') FROM t0;
+} {1}
+do_execsql_test in-19.30 {
+  SELECT c0 IN ('2.0625',2,3) FROM t0;
+} {1}
+do_execsql_test in-19.40 {
+  DROP TABLE t0;
+  CREATE TABLE t0(c0 TEXT, c1 REAL, c2, PRIMARY KEY(c2, c0, c1));
+  CREATE INDEX i0 ON t0(c1 IN (c0));
+  INSERT INTO t0(c0, c2) VALUES (0, NULL) ON CONFLICT(c2, c1, c0) DO NOTHING;
+  PRAGMA integrity_check;
+} {ok}
+
+# Ticket f3ff1472887
+#
+do_execsql_test in-20.1 {
+  SELECT (1 IN (2 IS TRUE));
+} {1}
+
+# Forum post: https://sqlite.org/forum/forumpost/5782619992.
+#
+reset_db
+do_execsql_test in-21.1 {
+  CREATE TABLE t0(c0);
+  SELECT COUNT(*) FROM t0 ORDER BY (t0.c0 IN ());
+} {0}
+
+# Ignore extra parentheses around a subquery on the RHS of an IN operator,
+# because that is what PostgreSQL does.
+#
+do_execsql_test in-22.1 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(x INT PRIMARY KEY, y INT);
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<8)
+    INSERT INTO t1(x,y) SELECT x, x*100 FROM c;
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t2(a INT);
+  INSERT INTO t2 VALUES(2),(4),(6);
+  SELECT * FROM t1 WHERE x IN (SELECT a FROM t2);
+} {2 200 4 400 6 600}
+do_execsql_test in-22.2 {
+  SELECT * FROM t1 WHERE x IN ((SELECT a FROM t2));
+} {2 200 4 400 6 600}
+do_execsql_test in-22.3 {
+  SELECT * FROM t1 WHERE x IN (((SELECT a FROM t2)));
+} {2 200 4 400 6 600}
+do_execsql_test in-22.4 {
+  SELECT * FROM t1 WHERE x IN ((((((SELECT a FROM t2))))));
+} {2 200 4 400 6 600}
+
+# 2023-04-04 https://sqlite.org/forum/forumpost/dc16ec63d3
+# Faulty assert() statement in the IN optimization.
+#
+do_execsql_test in-23.0 {
+  DROP TABLE IF EXISTS t4;
+  CREATE TABLE t4(a TEXT, b INT);
+  INSERT INTO t4(a,b) VALUES('abc',0),('ABC',1),('def',2);
+  CREATE INDEX t4x ON t4(a, +a COLLATE NOCASE);
+  SELECT a0.a, group_concat(a1.a) AS b
+    FROM t4 AS a0 JOIN t4 AS a1
+   GROUP BY a0.a
+  HAVING (SELECT sum( (a1.a == +a0.a COLLATE NOCASE) IN (SELECT b FROM t4)));
+} {ABC abc,ABC,def abc abc,ABC,def def abc,ABC,def}
+do_execsql_test in-23.0-b {
+  SELECT a0.a, group_concat(a1.a) AS b
+    FROM t4 AS a0 JOIN t4 AS a1
+   GROUP BY a0.a
+  HAVING (SELECT sum( (a1.a GLOB +a0.a COLLATE NOCASE) IN (SELECT b FROM t4)));
+} {ABC abc,ABC,def abc abc,ABC,def def abc,ABC,def}
+#
+# Follow-up forum/forumpost/0713a16a44
+#
+do_execsql_test in-23.1 {
+  CREATE VIEW t5 AS
+    SELECT 1 AS b
+     WHERE (SELECT count(0=NOT+a COLLATE NOCASE IN (SELECT 0))
+              FROM t4
+             GROUP BY a);
+  SELECT * FROM t5;
+} 1
+
+finish_test
diff --git a/test/in2.test b/test/in2.test
new file mode 100644
index 0000000000000000000000000000000000000000..43240824a75280fc388373b16ac9455c970ba519
--- /dev/null
+++ b/test/in2.test
@@ -0,0 +1,67 @@
+# 2007 May 12
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file tests a special case in the b-tree code that can be
+# hit by the "IN" operator (or EXISTS, NOT IN, etc.).
+#
+# $Id: in2.test,v 1.3 2008/07/12 14:52:20 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test in2-1 {
+  execsql {
+    CREATE TABLE a(i INTEGER PRIMARY KEY, a);
+  }
+} {}
+
+set ::N 2000
+
+do_test in2-2 {
+  db transaction {
+    for {set ::ii 0} {$::ii < $::N} {incr ::ii} {
+      execsql {INSERT INTO a VALUES($::ii, $::ii)}
+    }
+    execsql {INSERT INTO a VALUES(4000, '')}
+
+    for {set ::ii 0} {$::ii < $::N} {incr ::ii} {
+      set ::t [format "x%04d" $ii]
+      execsql {INSERT INTO a VALUES(NULL, $::t)}
+    }
+  }
+} {}
+
+# Each iteration of this loop builds a slightly different b-tree to
+# evaluate the "IN (...)" operator in the SQL statement. The contents
+# of the b-tree are (in sorted order):
+#
+#     $::ii integers.
+#     a string of zero length.
+#     $::N short strings.
+#
+# Records are inserted in sorted order.
+#
+# The string of zero-length is stored in a b-tree cell with 3 bytes
+# of payload. Moving this cell from a leaf node to a internal node 
+# during b-tree balancing was causing an assertion failure. 
+#
+# This bug only applied to b-trees generated to evaluate IN (..) 
+# clauses, as it is impossible for persistent b-trees (SQL tables + 
+# indices) to contain cells smaller than 4 bytes.
+#
+for {set ::ii 3} {$::ii < $::N} {incr ::ii} {
+  do_test in2-$::ii {
+    execsql {
+      SELECT 1 IN (SELECT a FROM a WHERE (i < $::ii) OR (i >= $::N))
+    }
+  } {1}
+}
+
+finish_test
diff --git a/test/in3.test b/test/in3.test
new file mode 100644
index 0000000000000000000000000000000000000000..012c9b44526005849488bd363a65b122e2c6e0f2
--- /dev/null
+++ b/test/in3.test
@@ -0,0 +1,289 @@
+# 2007 November 29
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file tests the optimisations made in November 2007 of expressions 
+# of the following form:
+#
+#     <value> IN (SELECT <column> FROM <table>)
+#
+# $Id: in3.test,v 1.5 2008/08/04 03:51:24 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !subquery {
+  finish_test
+  return
+}
+
+# Return the number of OpenEphemeral instructions used in the
+# implementation of the sql statement passed as a an argument.
+#
+proc nEphemeral {sql} {
+  set nEph 0
+  foreach op [execsql "EXPLAIN $sql"] {
+    if {$op eq "OpenEphemeral"} {incr nEph}
+  }
+  set nEph
+}
+
+# This proc works the same way as execsql, except that the number
+# of OpenEphemeral instructions used in the implementation of the
+# statement is inserted into the start of the returned list.
+#
+proc exec_neph {sql} {
+  return [concat [nEphemeral $sql] [execsql $sql]]
+}
+
+do_test in3-1.1 {
+  execsql {
+    CREATE TABLE t1(a PRIMARY KEY, b);
+    INSERT INTO t1 VALUES(1, 2);
+    INSERT INTO t1 VALUES(3, 4);
+    INSERT INTO t1 VALUES(5, 6);
+  }
+} {}
+
+# All of these queries should avoid using a temp-table:
+#
+do_test in3-1.2 {
+  exec_neph { SELECT rowid FROM t1 WHERE rowid IN (SELECT rowid FROM t1); }
+} {0 1 2 3}
+do_test in3-1.3 {
+  exec_neph { SELECT a FROM t1 WHERE a IN (SELECT a FROM t1); }
+} {0 1 3 5}
+do_test in3-1.4 {
+  exec_neph { SELECT rowid FROM t1 WHERE rowid+0 IN (SELECT rowid FROM t1); }
+} {0 1 2 3}
+do_test in3-1.5 {
+  exec_neph { SELECT a FROM t1 WHERE a+0 IN (SELECT a FROM t1); }
+} {0 1 3 5}
+
+# Because none of the sub-select queries in the following statements
+# match the pattern ("SELECT <column> FROM <table>"), the following do 
+# require a temp table.
+#
+do_test in3-1.6 {
+  exec_neph { SELECT rowid FROM t1 WHERE rowid IN (SELECT rowid+0 FROM t1); }
+} {1 1 2 3}
+do_test in3-1.7 {
+  exec_neph { SELECT a FROM t1 WHERE a IN (SELECT a+0 FROM t1); }
+} {1 1 3 5}
+do_test in3-1.8 {
+  exec_neph { SELECT a FROM t1 WHERE a IN (SELECT a FROM t1 WHERE 1); }
+} {1 1 3 5}
+do_test in3-1.9 {
+  exec_neph { SELECT a FROM t1 WHERE a IN (SELECT a FROM t1 GROUP BY a); }
+} {1 1 3 5}
+
+# This should not use a temp-table. Even though the sub-select does
+# not exactly match the pattern "SELECT <column> FROM <table>", in
+# this case the ORDER BY is a no-op and can be ignored.
+do_test in3-1.10 {
+  exec_neph { SELECT a FROM t1 WHERE a IN (SELECT a FROM t1 ORDER BY a); }
+} {0 1 3 5}
+
+# These do use the temp-table. Adding the LIMIT clause means the 
+# ORDER BY cannot be ignored.
+do_test in3-1.11 {
+  exec_neph {SELECT a FROM t1 WHERE a IN (SELECT a FROM t1 ORDER BY a LIMIT 1)}
+} {1 1}
+do_test in3-1.12 {
+  exec_neph {
+    SELECT a FROM t1 WHERE a IN (SELECT a FROM t1 ORDER BY a LIMIT 1 OFFSET 1)
+  }
+} {1 3}
+
+# Has to use a temp-table because of the compound sub-select.
+#
+ifcapable compound {
+  do_test in3-1.13 {
+    exec_neph {
+      SELECT a FROM t1 WHERE a IN (
+        SELECT a FROM t1 UNION ALL SELECT a FROM t1
+      )
+    }
+  } {1 1 3 5}
+}
+
+# The first of these queries has to use the temp-table, because the 
+# collation sequence used for the index on "t1.a" does not match the
+# collation sequence used by the "IN" comparison. The second does not
+# require a temp-table, because the collation sequences match.
+#
+do_test in3-1.14 {
+  exec_neph { SELECT a FROM t1 WHERE a COLLATE nocase IN (SELECT a FROM t1) }
+} {1 1 3 5}
+do_test in3-1.15 {
+  exec_neph { SELECT a FROM t1 WHERE a COLLATE binary IN (SELECT a FROM t1) }
+} {0 1 3 5}
+
+# Neither of these queries require a temp-table. The collation sequence
+# makes no difference when using a rowid.
+#
+do_test in3-1.16 {
+  exec_neph {SELECT a FROM t1 WHERE a COLLATE nocase IN (SELECT rowid FROM t1)}
+} {0 1 3}
+do_test in3-1.17 {
+  exec_neph {SELECT a FROM t1 WHERE a COLLATE binary IN (SELECT rowid FROM t1)}
+} {0 1 3}
+
+# The following tests - in3.2.* - test a bug that was difficult to track
+# down during development. They are not particularly well focused.
+#
+do_test in3-2.1 {
+  execsql {
+    DROP TABLE IF EXISTS t1;
+    CREATE TABLE t1(w int, x int, y int);
+    CREATE TABLE t2(p int, q int, r int, s int);
+  }
+  for {set i 1} {$i<=100} {incr i} {
+    set w $i
+    set x [expr {int(log($i)/log(2))}]
+    set y [expr {$i*$i + 2*$i + 1}]
+    execsql "INSERT INTO t1 VALUES($w,$x,$y)"
+  }
+  set maxy [execsql {select max(y) from t1}]
+  db eval { INSERT INTO t2 SELECT 101-w, x, $maxy+1-y, y FROM t1 }
+} {}
+do_test in3-2.2 {
+  execsql {
+    SELECT rowid 
+    FROM t1 
+    WHERE rowid IN (SELECT rowid FROM t1 WHERE rowid IN (1, 2));
+  }
+} {1 2}
+do_test in3-2.3 {
+  execsql {
+    select rowid from t1 where rowid IN (-1,2,4)
+  }
+} {2 4}
+do_test in3-2.4 {
+  execsql {
+    SELECT rowid FROM t1 WHERE rowid IN 
+       (select rowid from t1 where rowid IN (-1,2,4))
+  }
+} {2 4}
+
+#-------------------------------------------------------------------------
+# This next block of tests - in3-3.* - verify that column affinity is
+# correctly handled in cases where an index might be used to optimise
+# an IN (SELECT) expression.
+#
+do_test in3-3.1 {
+  catch {execsql {
+    DROP TABLE t1;
+    DROP TABLE t2;
+  }}
+
+  execsql {
+
+    CREATE TABLE t1(a BLOB, b NUMBER ,c TEXT);
+    CREATE UNIQUE INDEX t1_i1 ON t1(a);        /* no affinity */
+    CREATE UNIQUE INDEX t1_i2 ON t1(b);        /* numeric affinity */
+    CREATE UNIQUE INDEX t1_i3 ON t1(c);        /* text affinity */
+
+    CREATE TABLE t2(x BLOB, y NUMBER, z TEXT);
+    CREATE UNIQUE INDEX t2_i1 ON t2(x);        /* no affinity */
+    CREATE UNIQUE INDEX t2_i2 ON t2(y);        /* numeric affinity */
+    CREATE UNIQUE INDEX t2_i3 ON t2(z);        /* text affinity */
+
+    INSERT INTO t1 VALUES(1, 1, 1);
+    INSERT INTO t2 VALUES('1', '1', '1');
+  }
+} {}
+
+do_test in3-3.2 {
+  # No affinity is applied before comparing "x" and "a". Therefore
+  # the index can be used (the comparison is false, text!=number).
+  exec_neph { SELECT x IN (SELECT a FROM t1) FROM t2 }
+} {0 0}
+do_test in3-3.3 {
+  # Logically, numeric affinity is applied to both sides before 
+  # the comparison.  Therefore it is possible to use index t1_i2.
+  exec_neph { SELECT x IN (SELECT b FROM t1) FROM t2 }
+} {0 1}
+do_test in3-3.4 {
+  # No affinity is applied before the comparison takes place. Making
+  # it possible to use index t1_i3.
+  exec_neph { SELECT x IN (SELECT c FROM t1) FROM t2 }
+} {0 1}
+
+do_test in3-3.5 {
+  # Numeric affinity should be applied to each side before the comparison
+  # takes place. Therefore we cannot use index t1_i1, which has no affinity.
+  exec_neph { SELECT y IN (SELECT a FROM t1) FROM t2 }
+} {1 1}
+do_test in3-3.6 {
+  # Numeric affinity is applied to both sides before 
+  # the comparison.  Therefore it is possible to use index t1_i2.
+  exec_neph { SELECT y IN (SELECT b FROM t1) FROM t2 }
+} {0 1}
+do_test in3-3.7 {
+  # Numeric affinity is applied before the comparison takes place. 
+  # Making it impossible to use index t1_i3.
+  exec_neph { SELECT y IN (SELECT c FROM t1) FROM t2 }
+} {1 1}
+
+#---------------------------------------------------------------------
+#
+# Test using a multi-column index.
+#
+do_test in3-4.1 {
+  execsql {
+    CREATE TABLE t3(a, b, c);
+    CREATE UNIQUE INDEX t3_i ON t3(b, a);
+  }
+
+  execsql {
+    INSERT INTO t3 VALUES(1, 'numeric', 2);
+    INSERT INTO t3 VALUES(2, 'text', 2);
+    INSERT INTO t3 VALUES(3, 'real', 2);
+    INSERT INTO t3 VALUES(4, 'none', 2);
+  }
+} {}
+do_test in3-4.2 {
+  exec_neph { SELECT 'text' IN (SELECT b FROM t3) }
+} {0 1}
+do_test in3-4.3 {
+  exec_neph { SELECT 'TEXT' COLLATE nocase IN (SELECT b FROM t3) }
+} {1 1}
+do_test in3-4.4 {
+  # A temp table must be used because t3_i.b is not guaranteed to be unique.
+  exec_neph { SELECT b FROM t3 WHERE b IN (SELECT b FROM t3) }
+} {1 none numeric real text}
+do_test in3-4.5 {
+  execsql { CREATE UNIQUE INDEX t3_i2 ON t3(b) }
+  exec_neph { SELECT b FROM t3 WHERE b IN (SELECT b FROM t3) }
+} {0 none numeric real text}
+do_test in3-4.6 {
+  execsql { DROP INDEX t3_i2 }
+} {}
+
+# The following two test cases verify that ticket #2991 has been fixed.
+#
+do_test in3-5.1 {
+  execsql {
+    CREATE TABLE Folders(
+      folderid INTEGER PRIMARY KEY, 
+      parentid INTEGER, 
+      rootid INTEGER, 
+      path VARCHAR(255)
+    );
+  }
+} {}
+do_test in3-5.2 {
+  catchsql {
+    DELETE FROM Folders WHERE folderid IN
+    (SELECT folderid FROM Folder WHERE path LIKE 'C:\MP3\Albums\' || '%');
+  }
+} {1 {no such table: Folder}}
+
+finish_test
diff --git a/test/in4.test b/test/in4.test
new file mode 100644
index 0000000000000000000000000000000000000000..71993e7003c971fd965db1c80c02a13b2ea1ed24
--- /dev/null
+++ b/test/in4.test
@@ -0,0 +1,520 @@
+# 2008 September 1
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# $Id: in4.test,v 1.4 2009/06/05 17:09:12 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix in4
+
+do_test in4-1.1 {
+  execsql {
+    CREATE TABLE t1(a, b);
+    CREATE INDEX i1 ON t1(a);
+  }
+} {}
+do_test in4-1.2 {
+  execsql {
+    SELECT * FROM t1 WHERE a IN ('aaa', 'bbb', 'ccc');
+  }
+} {}
+do_test in4-1.3 {
+  execsql {
+    INSERT INTO t1 VALUES('aaa', 1);
+    INSERT INTO t1 VALUES('ddd', 2);
+    INSERT INTO t1 VALUES('ccc', 3);
+    INSERT INTO t1 VALUES('eee', 4);
+    SELECT b FROM t1 WHERE a IN ('aaa', 'bbb', 'ccc');
+  }
+} {1 3}
+do_test in4-1.4 {
+  execsql {
+    SELECT a FROM t1 WHERE rowid IN (1, 3);
+  }
+} {aaa ccc}
+do_test in4-1.5 {
+  execsql {
+    SELECT a FROM t1 WHERE rowid IN ();
+  }
+} {}
+do_test in4-1.6 {
+  execsql {
+    SELECT a FROM t1 WHERE a IN ('ddd');
+  }
+} {ddd}
+
+do_test in4-2.1 {
+  execsql {
+    CREATE TABLE t2(a INTEGER PRIMARY KEY, b TEXT);
+    INSERT INTO t2 VALUES(-1, '-one');
+    INSERT INTO t2 VALUES(0, 'zero');
+    INSERT INTO t2 VALUES(1, 'one');
+    INSERT INTO t2 VALUES(2, 'two');
+    INSERT INTO t2 VALUES(3, 'three');
+  }
+} {}
+
+do_test in4-2.2 {
+  execsql { SELECT b FROM t2 WHERE a IN (0, 2) }
+} {zero two}
+
+do_test in4-2.3 {
+  execsql { SELECT b FROM t2 WHERE a IN (2, 0) }
+} {zero two}
+
+do_test in4-2.4 {
+  execsql { SELECT b FROM t2 WHERE a IN (2, -1) }
+} {-one two}
+
+do_test in4-2.5 {
+  execsql { SELECT b FROM t2 WHERE a IN (NULL, 3) }
+} {three}
+
+do_test in4-2.6 {
+  execsql { SELECT b FROM t2 WHERE a IN (1.0, 2.1) }
+} {one}
+
+do_test in4-2.7 {
+  execsql { SELECT b FROM t2 WHERE a IN ('1', '2') }
+} {one two}
+
+do_test in4-2.8 {
+  execsql { SELECT b FROM t2 WHERE a IN ('', '0.0.0', '2') }
+} {two}
+
+# The following block of tests test expressions of the form:
+#
+#    <expr> IN ()
+#
+# i.e. IN expressions with a literal empty set. 
+# 
+# This has led to crashes on more than one occasion. Test case in4-3.2 
+# was added in reponse to a bug reported on the mailing list on 11/7/2008.
+# See also tickets #3602 and #185.
+#
+do_test in4-3.1 {
+  execsql {
+    DROP TABLE IF EXISTS t1;
+    DROP TABLE IF EXISTS t2;
+    CREATE TABLE t1(x, id);
+    CREATE TABLE t2(x, id);
+    INSERT INTO t1 VALUES(NULL, NULL);
+    INSERT INTO t1 VALUES(0, NULL);
+    INSERT INTO t1 VALUES(1, 3);
+    INSERT INTO t1 VALUES(2, 4);
+    INSERT INTO t1 VALUES(3, 5);
+    INSERT INTO t1 VALUES(4, 6);
+    INSERT INTO t2 VALUES(0, NULL);
+    INSERT INTO t2 VALUES(4, 1);
+    INSERT INTO t2 VALUES(NULL, 1);
+    INSERT INTO t2 VALUES(NULL, NULL);
+  }
+} {}
+do_test in4-3.2 {
+  execsql {
+    SELECT x FROM t1 WHERE id IN () AND x IN (SELECT x FROM t2 WHERE id=1)
+  }
+} {}
+do_test in4-3.3 {
+  execsql {
+    CREATE TABLE t3(x, y, z);
+    CREATE INDEX t3i1 ON t3(x, y);
+    INSERT INTO t3 VALUES(1, 1, 1);
+    INSERT INTO t3 VALUES(10, 10, 10);
+  }
+  execsql { SELECT * FROM t3 WHERE x IN () }
+} {}
+do_test in4-3.4 {
+  execsql { SELECT * FROM t3 WHERE x = 10 AND y IN () }
+} {}
+do_test in4-3.5 {
+  execsql { SELECT * FROM t3 WHERE x IN () AND y = 10 }
+} {}
+do_test in4-3.6 {
+  execsql { SELECT * FROM t3 WHERE x IN () OR x = 10 }
+} {10 10 10}
+do_test in4-3.7 {
+  execsql { SELECT * FROM t3 WHERE y IN () }
+} {}
+do_test in4-3.8 {
+  execsql { SELECT x IN() AS a FROM t3 WHERE a }
+} {}
+do_test in4-3.9 {
+  execsql { SELECT x IN() AS a FROM t3 WHERE NOT a }
+} {0 0}
+do_test in4-3.10 {
+  execsql { SELECT * FROM t3 WHERE oid IN () }
+} {}
+do_test in4-3.11 {
+  execsql { SELECT * FROM t3 WHERE x IN (1, 2) OR y IN ()}
+} {1 1 1}
+do_test in4-3.12 {
+  execsql { SELECT * FROM t3 WHERE x IN (1, 2) AND y IN ()}
+} {}
+
+# Tests for "... IN (?)" and "... NOT IN (?)".  In other words, tests
+# for when the RHS of IN is a single expression.  This should work the
+# same as the == and <> operators.
+#
+do_execsql_test in4-3.21 {
+  SELECT * FROM t3 WHERE x=10 AND y IN (10);
+} {10 10 10}
+do_execsql_test in4-3.22 {
+  SELECT * FROM t3 WHERE x IN (10) AND y=10;
+} {10 10 10}
+do_execsql_test in4-3.23 {
+  SELECT * FROM t3 WHERE x IN (10) AND y IN (10);
+} {10 10 10}
+do_execsql_test in4-3.24 {
+  SELECT * FROM t3 WHERE x=1 AND y NOT IN (10);
+} {1 1 1}
+do_execsql_test in4-3.25 {
+  SELECT * FROM t3 WHERE x  NOT IN (10) AND y=1;
+} {1 1 1}
+do_execsql_test in4-3.26 {
+  SELECT * FROM t3 WHERE x NOT IN (10) AND y NOT IN (10);
+} {1 1 1}
+
+# The query planner recognizes that "x IN (?)" only generates a
+# single match and can use this information to optimize-out ORDER BY
+# clauses.
+#
+do_execsql_test in4-3.31 {
+  DROP INDEX t3i1;
+  CREATE UNIQUE INDEX t3xy ON t3(x,y);
+
+  SELECT *, '|' FROM t3 A, t3 B
+   WHERE A.x=10 AND A.y IN (10)
+     AND B.x=1 AND B.y IN (1);
+} {10 10 10 1 1 1 |}
+do_execsql_test in4-3.32 {
+  EXPLAIN QUERY PLAN
+  SELECT *, '|' FROM t3 A, t3 B
+   WHERE A.x=10 AND A.y IN (10)
+     AND B.x=1 AND B.y IN (1);
+} {~/B-TREE/}  ;# No separate sorting pass
+do_execsql_test in4-3.33 {
+  SELECT *, '|' FROM t3 A, t3 B
+   WHERE A.x IN (10) AND A.y=10
+     AND B.x IN (1) AND B.y=1;
+} {10 10 10 1 1 1 |}
+do_execsql_test in4-3.34 {
+  EXPLAIN QUERY PLAN
+  SELECT *, '|' FROM t3 A, t3 B
+   WHERE A.x IN (10) AND A.y=10
+     AND B.x IN (1) AND B.y=1;
+} {~/B-TREE/}  ;# No separate sorting pass
+
+# An expression of the form "x IN (?,?)" creates an ephemeral table to
+# hold the list of values on the RHS.  But "x IN (?)" does not create
+# an ephemeral table.
+#
+do_execsql_test in4-3.41 {
+  SELECT * FROM t3 WHERE x IN (10,11);
+} {10 10 10}
+do_execsql_test in4-3.42 {
+  EXPLAIN
+  SELECT * FROM t3 WHERE x IN (10,11);
+} {/OpenEphemeral/}
+do_execsql_test in4-3.43 {
+  SELECT * FROM t3 WHERE x IN (10);
+} {10 10 10}
+
+# This test would verify that the "X IN (Y)" -> "X==Y" optimization
+# was working.  But we have now taken that optimization out.
+#do_execsql_test in4-3.44 {
+#  EXPLAIN
+#  SELECT * FROM t3 WHERE x IN (10);
+#} {~/OpenEphemeral/}
+do_execsql_test in4-3.45 {
+  SELECT * FROM t3 WHERE x NOT IN (10,11,99999);
+} {1 1 1}
+do_execsql_test in4-3.46 {
+  EXPLAIN
+  SELECT * FROM t3 WHERE x NOT IN (10,11,99999);
+} {/OpenEphemeral/}
+do_execsql_test in4-3.47 {
+  SELECT * FROM t3 WHERE x NOT IN (10);
+} {1 1 1}
+do_execsql_test in4-3.48 {
+  EXPLAIN
+  SELECT * FROM t3 WHERE x NOT IN (10);
+} {~/OpenEphemeral/}
+
+# Make sure that when "x IN (?)" is converted into "x==?" that collating
+# sequence and affinity computations do not get messed up.
+#
+do_execsql_test in4-4.1 {
+  CREATE TABLE t4a(a TEXT, b TEXT COLLATE nocase, c);
+  INSERT INTO t4a VALUES('ABC','abc',1);
+  INSERT INTO t4a VALUES('def','xyz',2);
+  INSERT INTO t4a VALUES('ghi','ghi',3);
+  SELECT c FROM t4a WHERE a=b ORDER BY c;
+} {3}
+do_execsql_test in4-4.2 {
+  SELECT c FROM t4a WHERE b=a ORDER BY c;
+} {1 3}
+do_execsql_test in4-4.3 {
+  SELECT c FROM t4a WHERE (a||'')=b ORDER BY c;
+} {1 3}
+do_execsql_test in4-4.4 {
+  SELECT c FROM t4a WHERE (a||'')=(b||'') ORDER BY c;
+} {3}
+do_execsql_test in4-4.5 {
+  SELECT c FROM t4a WHERE a IN (b) ORDER BY c;
+} {3}
+do_execsql_test in4-4.6 {
+  SELECT c FROM t4a WHERE (a||'') IN (b) ORDER BY c;
+} {3}
+
+
+do_execsql_test in4-4.11 {
+  CREATE TABLE t4b(a TEXT, b NUMERIC, c);
+  INSERT INTO t4b VALUES('1.0',1,4);
+  SELECT c FROM t4b WHERE a=b;
+} {4}
+do_execsql_test in4-4.12 {
+  SELECT c FROM t4b WHERE b=a;
+} {4}
+do_execsql_test in4-4.13 {
+  SELECT c FROM t4b WHERE +a=b;
+} {4}
+do_execsql_test in4-4.14 {
+  SELECT c FROM t4b WHERE a=+b;
+} {}
+do_execsql_test in4-4.15 {
+  SELECT c FROM t4b WHERE +b=a;
+} {}
+do_execsql_test in4-4.16 {
+  SELECT c FROM t4b WHERE b=+a;
+} {4}
+do_execsql_test in4-4.17 {
+  SELECT c FROM t4b WHERE a IN (b);
+} {}
+do_execsql_test in4-4.18 {
+  SELECT c FROM t4b WHERE b IN (a);
+} {4}
+do_execsql_test in4-4.19 {
+  SELECT c FROM t4b WHERE +b IN (a);
+} {}
+
+do_execsql_test in4-5.1 {
+  CREATE TABLE t5(c INTEGER PRIMARY KEY, d TEXT COLLATE nocase);
+  INSERT INTO t5 VALUES(17, 'fuzz');
+  SELECT 1 FROM t5 WHERE 'fuzz' IN (d);  -- match
+  SELECT 2 FROM t5 WHERE 'FUZZ' IN (d);  -- no match
+  SELECT 3 FROM t5 WHERE d IN ('fuzz');  -- match
+  SELECT 4 FROM t5 WHERE d IN ('FUZZ');  -- match
+} {1 3 4}
+
+# An expression of the form "x IN (y)" can be used as "x=y" by the
+# query planner when computing transitive constraints or to run the
+# query using an index on y.
+#
+do_execsql_test in4-6.1 {
+  CREATE TABLE t6a(a INTEGER PRIMARY KEY, b);
+  INSERT INTO t6a VALUES(1,2),(3,4),(5,6);
+  CREATE TABLE t6b(c INTEGER PRIMARY KEY, d);
+  INSERT INTO t6b VALUES(4,44),(5,55),(6,66);
+
+  SELECT * FROM t6a, t6b WHERE a=3 AND b IN (c);
+} {3 4 4 44}
+do_execsql_test in4-6.1-eqp {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t6a, t6b WHERE a=3 AND b IN (c);
+} {~/SCAN t6a/}
+do_execsql_test in4-6.2 {
+  SELECT * FROM t6a, t6b WHERE a=3 AND c IN (b);
+} {3 4 4 44}
+do_execsql_test in4-6.2-eqp {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t6a, t6b WHERE a=3 AND c IN (b);
+} {~/SCAN/}
+
+reset_db
+do_execsql_test 7.0 {
+  CREATE TABLE t1(a, b, c);
+  CREATE TABLE t2(d, e);
+  CREATE INDEX t1bc ON t1(c, b);
+  INSERT INTO t2(e) VALUES(1);
+  INSERT INTO t1 VALUES(NULL, NULL, NULL);
+}
+
+do_execsql_test 7.1 {
+  SELECT * FROM t2 LEFT JOIN t1 ON c = d AND b IN (10,10,10);
+} {{} 1 {} {} {}}
+
+ifcapable rtree {
+  reset_db
+  do_execsql_test 7.2 {
+    CREATE VIRTUAL TABLE t1 USING rtree(a, b, c);
+    CREATE TABLE t2(d INTEGER, e INT);
+    INSERT INTO t2(e) VALUES(1);
+  }
+
+  do_execsql_test 7.3 {
+    SELECT * FROM t2 LEFT JOIN t1 ON c IN (d) AND b IN (10,10,10);
+  } {{} 1 {} {} {}}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 8.0 {
+  CREATE TABLE t1(x INTEGER PRIMARY KEY, y);
+  CREATE UNIQUE INDEX t1y ON t1(y);
+  INSERT INTO t1 VALUES(111, 'AAA'),(222, 'BBB'),(333, 'CCC');
+  CREATE TABLE t2(z);
+  INSERT INTO t2 VALUES('BBB'),('AAA');
+  ANALYZE sqlite_schema;
+  INSERT INTO sqlite_stat1 VALUES('t1', 't1y','100 1');
+}
+
+db close
+sqlite3 db test.db
+
+do_execsql_test 8.1 {
+  SELECT t1.x FROM t2 CROSS JOIN t1 WHERE t2.z = t1.y;
+} {222 111}
+
+do_execsql_test 8.2 {
+  SELECT t1.x FROM t2 CROSS JOIN t1 WHERE t2.z = t1.y AND +t1.x IN (111, 222);
+} {222 111}
+
+do_execsql_test 8.3 {
+  SELECT t1.x FROM t2 CROSS JOIN t1 WHERE t2.z = t1.y AND t1.x IN (111, 222);
+} {222 111}
+
+# 2021-06-02 forum post https://sqlite.org/forum/forumpost/b4fcb8a598
+# OP_SeekScan changes from check-in 4a43430fd23f8835 on 2020-09-30 causes
+# performance regression.
+#
+reset_db
+do_execsql_test 9.0 {
+  CREATE TABLE node(node_id INTEGER PRIMARY KEY);
+  CREATE TABLE edge(node_from INT, node_to INT);
+  CREATE TABLE sub_nodes(node_id INTEGER PRIMARY KEY);
+  CREATE INDEX edge_from_to ON edge(node_from,node_to);
+  CREATE INDEX edge_to_from ON edge(node_to,node_from);
+  ANALYZE;
+  DELETE FROM sqlite_stat1;
+  INSERT INTO sqlite_stat1 VALUES
+    ('sub_nodes',NULL,'1000000'),
+    ('edge','edge_to_from','20000000 2 2'),
+    ('edge','edge_from_to','20000000 2 2'),
+    ('node',NULL,'10000000');
+  ANALYZE sqlite_schema;
+} {}
+do_eqp_test 9.1 {
+SELECT count(*) FROM edge
+ WHERE node_from IN sub_nodes AND node_to IN sub_nodes;
+} {
+  QUERY PLAN
+  |--SEARCH edge USING COVERING INDEX edge_to_from (node_to=?)
+  |--USING ROWID SEARCH ON TABLE sub_nodes FOR IN-OPERATOR
+  `--USING ROWID SEARCH ON TABLE sub_nodes FOR IN-OPERATOR
+}
+# ^^^^^ the key to the above is that the index should only use a single
+#       term (node_to=?), not two terms (node_to=? AND node_from=).
+
+# dbsqlfuzz case
+#
+reset_db
+do_execsql_test 10.0 {
+  CREATE TABLE t1(a,b,c,d,PRIMARY KEY(a,b,c)) WITHOUT ROWID;
+  INSERT INTO t1(a,b,c,d) VALUES
+    (0,-2,2,3),
+    (0,2,3,4),
+    (0,5,8,10),
+    (1,7,11,13);
+  ANALYZE sqlite_schema;
+  INSERT INTO sqlite_stat1 VALUES('t1','t1','10 3 2 1');
+  ANALYZE sqlite_schema;
+  PRAGMA reverse_unordered_selects(1);
+  SELECT d FROM t1 WHERE 0=a AND b IN (-17,-4,-3,1,5,25,7798);
+} {10}
+
+# 2021-06-13 dbsqlfuzz e41762333a4d6e90a49e628f488d0873b2dba4c5
+# The opcode that preceeds OP_SeekScan is usually OP_IdxGT, but can
+# sometimes be OP_IdxGE
+#
+reset_db
+do_execsql_test 11.0 {
+  CREATE TABLE t1(a TEXT, b INT, c INT, d INT);
+  INSERT INTO t1 VALUES('abc',123,4,5);
+  INSERT INTO t1 VALUES('xyz',1,'abcdefxyz',99);
+  CREATE INDEX t1abc ON t1(b,b,c);
+  ANALYZE sqlite_schema;
+  INSERT INTO sqlite_stat1 VALUES('t1','t1abc','10000 5 00 2003 10');
+  ANALYZE sqlite_schema;
+} {}
+do_execsql_test 11.1 {
+  SELECT * FROM t1
+   WHERE b IN (345, (SELECT 1 FROM t1 
+                      WHERE b IN (coalesce(1,random()))
+                        AND c GLOB 'abc*xyz'))
+     AND c BETWEEN 'abc' AND 'xyz';
+} {xyz 1 abcdefxyz 99}
+do_execsql_test 11.2 {
+  EXPLAIN SELECT * FROM t1
+   WHERE b IN (345, (SELECT 1 FROM t1 
+                      WHERE b IN (coalesce(1,random()))
+                        AND c GLOB 'abc*xyz'))
+     AND c BETWEEN 'abc' AND 'xyz';
+} {/ SeekScan /}
+
+# 2021-06-25 ticket 6dcbfd11cf666e21
+# Another problem with OP_SeekScan
+#
+reset_db
+do_execsql_test 12.0 {
+  CREATE TABLE t1(a,b,c);
+  CREATE INDEX t1abc ON t1(a,b,c);
+  CREATE INDEX t1bca on t1(b,c,a);
+  INSERT INTO t1 VALUES(56,1119,1115);
+  INSERT INTO t1 VALUES(57,1147,1137);
+  INSERT INTO t1 VALUES(100,1050,1023);
+  INSERT INTO t1 VALUES(101,1050,1023);
+  ANALYZE sqlite_schema;
+  INSERT INTO sqlite_stat1 VALUES('t1','t1abc','358677 2 2 1');
+  INSERT INTO sqlite_stat1 VALUES('t1','t1bca','358677 4 2 1');
+  ANALYZE sqlite_schema;
+  SELECT * FROM t1 NOT INDEXED
+   WHERE (b = 1137 AND c IN (97, 98))
+      OR (b = 1119 AND c IN (1115, 1023));
+} {56 1119 1115}
+do_execsql_test 12.1 {
+  SELECT * FROM t1
+   WHERE (b = 1137 AND c IN (97, 98))
+      OR (b = 1119 AND c IN (1115, 1023));
+} {56 1119 1115}
+
+# 2021-11-02 ticket 5981a8c041a3c2f3
+# Another OP_SeekScan problem.
+#
+reset_db
+do_execsql_test 13.0 {
+  CREATE TABLE t1(id INTEGER PRIMARY KEY, a INT, b INT, c INT);
+  INSERT INTO t1 VALUES(10,1,2,5);
+  INSERT INTO t1 VALUES(20,1,3,5);
+  INSERT INTO t1 VALUES(30,1,2,4);
+  INSERT INTO t1 VALUES(40,1,3,4);
+  ANALYZE sqlite_master;
+  INSERT INTO sqlite_stat1 VALUES('t1','t1x','84000 3 2 1');
+  CREATE INDEX t1x ON t1(a,b,c);
+  PRAGMA writable_schema=RESET;
+  SELECT * FROM t1
+   WHERE a=1
+     AND b IN (2,3)
+     AND c BETWEEN 4 AND 5
+   ORDER BY +id;
+} {10 1 2 5 20 1 3 5 30 1 2 4 40 1 3 4}
+
+finish_test
diff --git a/test/in5.test b/test/in5.test
new file mode 100644
index 0000000000000000000000000000000000000000..933eb90026ca0651e752a052fff390bb7f60f759
--- /dev/null
+++ b/test/in5.test
@@ -0,0 +1,291 @@
+# 2012 September 18
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix in5
+
+do_test in5-1.1 {
+  execsql {
+    CREATE TABLE t1x(x INTEGER PRIMARY KEY);
+    INSERT INTO t1x VALUES(1),(3),(5),(7),(9);
+    CREATE TABLE t1y(y INTEGER UNIQUE);
+    INSERT INTO t1y VALUES(2),(4),(6),(8);
+    CREATE TABLE t1z(z TEXT UNIQUE);
+    INSERT INTO t1z VALUES('a'),('c'),('e'),('g');
+    CREATE TABLE t2(a INTEGER, b INTEGER, c TEXT, d TEXT);
+    INSERT INTO t2 VALUES(1,2,'a','12a'),(1,2,'b','12b'),
+                         (2,3,'g','23g'),(3,5,'c','35c'),
+                         (4,6,'h','46h'),(5,6,'e','56e');
+    CREATE TABLE t3x AS SELECT x FROM t1x;
+    CREATE TABLE t3y AS SELECT y FROM t1y;
+    CREATE TABLE t3z AS SELECT z FROM t1z;
+    SELECT d FROM t2 WHERE a IN t1x AND b IN t1y AND c IN t1z ORDER BY c;
+  }
+} {12a 56e}
+do_test in5-1.2 {
+  execsql {
+    SELECT d FROM t2 WHERE a IN t1y AND b IN t1x AND c IN t1z ORDER BY d;
+  }
+} {23g}
+do_test in5-1.3 {
+  execsql {
+    SELECT d FROM t2 WHERE a IN t3x AND b IN t3y AND c IN t3z ORDER BY d;
+  }
+} {12a 56e}
+
+
+do_test in5-2.1 {
+  execsql {
+    CREATE INDEX t2abc ON t2(a,b,c);
+    SELECT d FROM t2 WHERE a IN t1x AND b IN t1y AND c IN t1z ORDER BY d;
+  }
+} {12a 56e}
+do_test in5-2.2 {
+  execsql {
+    SELECT d FROM t2 WHERE a IN t1y AND b IN t1x AND c IN t1z ORDER BY d;
+  }
+} {23g}
+do_test in5-2.3 {
+  regexp {OpenEphemeral} [db eval {
+    EXPLAIN SELECT d FROM t2 WHERE a IN t1x AND b IN t1y AND c IN t1z
+  }]
+} {0}
+do_test in5-2.4 {
+  execsql {
+    SELECT d FROM t2 WHERE a IN t3x AND b IN t3y AND c IN t3z ORDER BY d;
+  }
+} {12a 56e}
+do_test in5-2.5.1 {
+  regexp {OpenEphemeral} [db eval {
+    EXPLAIN SELECT d FROM t2 WHERE a IN t3x AND b IN t1y AND c IN t1z
+  }]
+} {1}
+do_test in5-2.5.2 {
+  regexp {OpenEphemeral} [db eval {
+    EXPLAIN SELECT d FROM t2 WHERE a IN t1x AND b IN t3y AND c IN t1z
+  }]
+} {1}
+do_test in5-2.5.3 {
+  regexp {OpenEphemeral} [db eval {
+    EXPLAIN SELECT d FROM t2 WHERE a IN t1x AND b IN t1y AND c IN t3z
+  }]
+} {1}
+
+do_test in5-3.1 {
+  execsql {
+    DROP INDEX t2abc;
+    CREATE INDEX t2ab ON t2(a,b);
+    SELECT d FROM t2 WHERE a IN t1x AND b IN t1y AND c IN t1z ORDER BY d;
+  }
+} {12a 56e}
+do_test in5-3.2 {
+  execsql {
+    SELECT d FROM t2 WHERE a IN t1y AND b IN t1x AND c IN t1z ORDER BY d;
+  }
+} {23g}
+do_test in5-3.3 {
+  regexp {OpenEphemeral} [db eval {
+    EXPLAIN SELECT d FROM t2 WHERE a IN t1x AND b IN t1y AND c IN t1z
+  }]
+} {0}
+
+do_test in5-4.1 {
+  execsql {
+    DROP INDEX t2ab;
+    CREATE INDEX t2abcd ON t2(a,b,c,d);
+    SELECT d FROM t2 WHERE a IN t1x AND b IN t1y AND c IN t1z ORDER BY d;
+  }
+} {12a 56e}
+do_test in5-4.2 {
+  execsql {
+    SELECT d FROM t2 WHERE a IN t1y AND b IN t1x AND c IN t1z ORDER BY d;
+  }
+} {23g}
+do_test in5-4.3 {
+  regexp {OpenEphemeral} [db eval {
+    EXPLAIN SELECT d FROM t2 WHERE a IN t1x AND b IN t1y AND c IN t1z
+  }]
+} {0}
+
+
+do_test in5-5.1 {
+  execsql {
+    DROP INDEX t2abcd;
+    CREATE INDEX t2cbad ON t2(c,b,a,d);
+    SELECT d FROM t2 WHERE a IN t1x AND b IN t1y AND c IN t1z ORDER BY d;
+  }
+} {12a 56e}
+do_test in5-5.2 {
+  execsql {
+    SELECT d FROM t2 WHERE a IN t1y AND b IN t1x AND c IN t1z ORDER BY d;
+  }
+} {23g}
+do_test in5-5.3 {
+  regexp {OpenEphemeral} [db eval {
+    EXPLAIN SELECT d FROM t2 WHERE a IN t1x AND b IN t1y AND c IN t1z
+  }]
+} {0}
+
+#-------------------------------------------------------------------------
+# At one point SQLite was removing the DISTINCT keyword from expressions
+# similar to:
+#
+#   <expr1> IN (SELECT DISTINCT <expr2> FROM...)
+#
+# However, there are a few obscure cases where this is incorrect. For
+# example, if the SELECT features a LIMIT clause, or if the collation
+# sequence or affinity used by the DISTINCT does not match the one used
+# by the IN(...) expression.
+#
+do_execsql_test 6.1.1 {
+  CREATE TABLE t1(a COLLATE nocase);
+  INSERT INTO t1 VALUES('one');
+  INSERT INTO t1 VALUES('ONE');
+}
+do_execsql_test 6.1.2 {
+  SELECT count(*) FROM t1 WHERE a COLLATE BINARY IN (SELECT DISTINCT a FROM t1)
+} {1}
+
+do_execsql_test 6.2.1 {
+  CREATE TABLE t3(a, b);
+  INSERT INTO t3 VALUES(1, 1);
+  INSERT INTO t3 VALUES(1, 2);
+  INSERT INTO t3 VALUES(1, 3);
+  INSERT INTO t3 VALUES(2, 4);
+  INSERT INTO t3 VALUES(2, 5);
+  INSERT INTO t3 VALUES(2, 6);
+  INSERT INTO t3 VALUES(3, 7);
+  INSERT INTO t3 VALUES(3, 8);
+  INSERT INTO t3 VALUES(3, 9);
+}
+do_execsql_test 6.2.2 {
+  SELECT count(*) FROM t3 WHERE b IN (SELECT DISTINCT a FROM t3 LIMIT 5);
+} {3}
+do_execsql_test 6.2.3 {
+  SELECT count(*) FROM t3 WHERE b IN (SELECT          a FROM t3 LIMIT 5);
+} {2}
+
+do_execsql_test 6.3.1 {
+  CREATE TABLE x1(a);
+  CREATE TABLE x2(b);
+  INSERT INTO x1 VALUES(1), (1), (2);
+  INSERT INTO x2 VALUES(1), (2);
+  SELECT count(*) FROM x2 WHERE b IN (SELECT DISTINCT a FROM x1 LIMIT 2);
+} {2}
+
+#-------------------------------------------------------------------------
+# Test to confirm that bug [5e3c886796e5] is fixed.
+#
+do_execsql_test 7.1 {
+  CREATE TABLE y1(a, b);
+  CREATE TABLE y2(c);
+
+  INSERT INTO y1 VALUES(1,     'one');
+  INSERT INTO y1 VALUES('two', 'two');
+  INSERT INTO y1 VALUES(3,     'three');
+
+  INSERT INTO y2 VALUES('one');
+  INSERT INTO y2 VALUES('two');
+  INSERT INTO y2 VALUES('three');
+} {}
+
+do_execsql_test 7.2.1 {
+  SELECT a FROM y1 WHERE b NOT IN (SELECT a FROM y2);
+} {1 3}
+do_execsql_test 7.2.2 {
+  SELECT a FROM y1 WHERE b IN (SELECT a FROM y2);
+} {two}
+
+do_execsql_test 7.3.1 {
+  CREATE INDEX y2c ON y2(c);
+  SELECT a FROM y1 WHERE b NOT IN (SELECT a FROM y2);
+} {1 3}
+do_execsql_test 7.3.2 {
+  SELECT a FROM y1 WHERE b IN (SELECT a FROM y2);
+} {two}
+
+#-------------------------------------------------------------------------
+# Tests to confirm that indexes on the rowid column do not confuse
+# the query planner. See ticket [0eab1ac7591f511d].
+#
+do_execsql_test 8.0 {
+  CREATE TABLE n1(a INTEGER PRIMARY KEY, b VARCHAR(500));
+  CREATE UNIQUE INDEX n1a ON n1(a);
+}
+
+do_execsql_test 8.1 {
+  SELECT count(*) FROM n1 WHERE a IN (1, 2, 3)
+} 0
+do_execsql_test 8.2 {
+  SELECT count(*) FROM n1 WHERE a IN (SELECT +a FROM n1)
+} 0
+do_execsql_test 8.3 {
+  INSERT INTO n1 VALUES(1, NULL), (2, NULL), (3, NULL);
+  SELECT count(*) FROM n1 WHERE a IN (1, 2, 3)
+} 3
+do_execsql_test 8.4 {
+  SELECT count(*) FROM n1 WHERE a IN (SELECT +a FROM n1)
+} 3
+
+#-------------------------------------------------------------------------
+# Test that ticket 61fe97454c is fixed.
+#
+do_execsql_test 9.0 {
+  CREATE TABLE t9(a INTEGER PRIMARY KEY);
+  INSERT INTO t9 VALUES (44), (45);
+}
+do_execsql_test 9.1 {
+  SELECT * FROM t9 WHERE a IN (44, 45, 44, 45)
+} {44 45}
+
+#-------------------------------------------------------------------------
+# Test that ticket c7a117190 is fixed.
+#
+reset_db
+do_execsql_test 9.0 {
+  CREATE TABLE t0(c0);
+  CREATE VIEW v0(c0) AS SELECT LOWER(CAST('1e500' AS TEXT)) FROM t0;
+  INSERT INTO t0(c0) VALUES (NULL);
+}
+
+do_execsql_test 9.1 {
+  SELECT lower('1e500') FROM t0 WHERE rowid NOT IN (0, 0, lower('1e500'));
+} {1e500}
+
+do_execsql_test 9.2 {
+  SELECT lower('1e500') FROM t0 WHERE rowid != lower('1e500');
+} {1e500}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+
+do_execsql_test 10.0 {
+  CREATE TABLE t1(a, b TEXT COLLATE NOCASE);
+  INSERT INTO t1 VALUES('abc', 'def');
+  INSERT INTO t1 VALUES('ghi', 'jkl');
+}
+
+do_execsql_test 10.1 {
+  SELECT rowid FROM t1 WHERE (a, b) IN ( VALUES('abc', 'def'), ('ghi', 'JKL') );
+} {1 2}
+
+do_execsql_test 10.2 {
+  CREATE INDEX i1 ON t1(a, b COLLATE BINARY);
+}
+
+do_execsql_test 10.3 {
+  SELECT rowid FROM t1 WHERE (a, b) IN ( VALUES('abc', 'def'), ('ghi', 'JKL') );
+} {1 2}
+
+finish_test
diff --git a/test/in6.test b/test/in6.test
new file mode 100644
index 0000000000000000000000000000000000000000..f477f60ef2832a324e8fc5b16f738972cc2cab91
--- /dev/null
+++ b/test/in6.test
@@ -0,0 +1,119 @@
+# 2018-06-07
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# A multi-key index that uses an IN operator on one of the keys other
+# than the left-most key is able to abort the IN-operator loop early
+# if key terms further to the left do not match.
+#
+# Call this the "multikey-IN-operator early-out optimization" or
+# just "IN-early-out" optimization for short.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix in6
+
+do_test in6-1.1 {
+  db eval {
+    CREATE TABLE t1(a,b,c,d);
+    WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<100)
+      INSERT INTO t1(a,b,c,d)
+        SELECT 100, 200+x/2, 300+x/5, x FROM c;
+    CREATE INDEX t1abc ON t1(a,b,c);
+    ANALYZE;
+    UPDATE sqlite_stat1 SET stat='1000000 500000 500 50';
+    ANALYZE sqlite_master;
+  }
+  set ::sqlite_search_count 0
+  db eval {
+    SELECT d FROM t1
+     WHERE a=99
+       AND b IN (200,205,201,204)
+       AND c IN (304,302,309,308);
+  }
+} {}
+do_test in6-1.2 {
+  set ::sqlite_search_count
+} {0}  ;# Without the IN-early-out optimization, this value would be 15
+
+# The multikey-IN-operator early-out optimization does not apply
+# when the IN operator is on the left-most column of the index.
+#
+do_test in6-1.3 {
+  db eval {
+    EXPLAIN
+    SELECT d FROM t1
+      WHERE a IN (98,99,100,101)
+        AND b=200 AND c=300;
+  }
+} {~/(IfNoHope|SeekHit)/}
+
+set sqlite_search_count 0
+do_execsql_test in6-1.4 {
+ SELECT d FROM t1
+  WHERE a=100
+    AND b IN (200,201,202,204)
+    AND c IN (300,302,301,305)
+  ORDER BY +d;
+} {1 2 3 4 5 8 9}
+do_test in6-1.5 {
+  set ::sqlite_search_count
+} {39}
+
+do_execsql_test in6-2.1 {
+  CREATE TABLE t2(e INT UNIQUE, f TEXT);
+  SELECT d, f FROM t1 LEFT JOIN t2 ON (e=d)
+  WHERE a=100
+    AND b IN (200,201,202,204)
+    AND c IN (300,302,301,305)
+  ORDER BY +d;
+} {1 {} 2 {} 3 {} 4 {} 5 {} 8 {} 9 {}}
+
+# 2020-03-16 ticket 82b588d342d515d1
+# Ensure that the IN-early-out optimization works with LEFT JOINs
+#
+reset_db
+do_execsql_test in6-3.100 {
+  CREATE TABLE t1(a);
+  INSERT INTO t1 VALUES(0);
+  CREATE TABLE t2(b, c, d);
+  INSERT INTO t2(b,c,d) VALUES(4,5,3),(4,5,4),(4,5,8);
+  CREATE INDEX t2bcd ON t2(b, c, d);
+  SELECT * FROM t1 LEFT JOIN t2 ON b=NULL AND c=5 AND d IN (2,3,4);
+} {0 {} {} {}}
+do_execsql_test in6-3.110 {
+  CREATE TABLE v0(v1);
+  CREATE TABLE v3(v5, v4);
+  INSERT INTO v0 VALUES(0);
+  CREATE INDEX v9 ON v3(v4, v4, v5);
+  SELECT quote(v5) FROM v0 LEFT JOIN v3 ON v4 = NULL AND v5 IN(0);
+} {NULL}
+
+# 2021-04-29 forum https://sqlite.org/forum/forumpost/6a3ec138e9
+# An early OP_IsNull bypass might skip over the OP_Affinity and
+# cause the OP_IfNoHope to jump on a false-positive, resulting in
+# incomplete output.
+#
+reset_db
+do_execsql_test in6-3.120 {
+  CREATE TABLE t1(a TEXT, b TEXT);
+  INSERT INTO t1 VALUES(null,10),(0,10),(10,10);
+  CREATE INDEX t1ab ON t1(a,b);
+  SELECT quote(a), quote(b), '|' FROM t1 WHERE b in (SELECT a FROM t1) AND a=0;
+} {'0' '10' |}
+do_execsql_test in6-3.130 {
+  CREATE TABLE t2(x TEXT);
+  INSERT INTO t2(x) VALUES(NULL),(0),(10);
+  SELECT quote(x), quote(a), quote(b), 'x'
+    FROM t2 LEFT JOIN t1 ON a=x AND b in (null,0,10);
+} {NULL NULL NULL x '0' '0' '10' x '10' '10' '10' x}
+
+finish_test
diff --git a/test/in7.test b/test/in7.test
new file mode 100644
index 0000000000000000000000000000000000000000..4dc0821d181a07ce0b95857d249d6a6f0229de5a
--- /dev/null
+++ b/test/in7.test
@@ -0,0 +1,222 @@
+# 2024-05-01
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix in7
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b, c PRIMARY KEY);
+  CREATE TABLE t2(x, y, z);
+}
+
+foreach {tn nNext idx sql} {
+  1 1 {
+    CREATE INDEX i1 ON t1(a, b);
+  } {
+    SELECT * FROM t1 WHERE (a, b) IN (SELECT x, y FROM t2)
+  } 
+
+  2 0 {
+    CREATE UNIQUE INDEX i1 ON t1(a, b);
+  } {
+    SELECT * FROM t1 WHERE (a, b) IN (SELECT x, y FROM t2)
+  } 
+
+  3 0 {
+    CREATE UNIQUE INDEX i1 ON t1(a, b);
+  } {
+    SELECT * FROM t1 WHERE a = ? AND b = ?
+  } 
+
+  3 1 {
+    CREATE UNIQUE INDEX i1 ON t1(a, b);
+  } {
+    SELECT * FROM t1 WHERE a = ? AND b IS ?
+  } 
+
+  4 0 {
+    CREATE UNIQUE INDEX i1 ON t1(a, b);
+  } {
+    SELECT * FROM t1 WHERE a = ? AND b IN (?, ?, ?);
+  } 
+
+  5 1 {
+    CREATE UNIQUE INDEX i1 ON t1(a, b, c);
+  } {
+    SELECT * FROM t1 WHERE a = ? AND b = ?
+  } 
+
+  6 0 {
+  } {
+    SELECT * FROM t1 WHERE c IN (SELECT z FROM t2)
+  } 
+
+  7 0 {
+  } {
+    SELECT * FROM t1 WHERE (a, c) IN (SELECT z, x FROM t2)
+  } 
+
+  8 1 {
+  } {
+    SELECT * FROM t1 WHERE a IN (SELECT z FROM t2)
+  } 
+
+  9 1 {
+    CREATE UNIQUE INDEX i1 ON t1(a, b);
+  } {
+    SELECT * FROM t1 WHERE a IN (SELECT z FROM t2) AND b IS ?
+  } 
+  10 0 {
+    CREATE UNIQUE INDEX i1 ON t1(a, b);
+  } {
+    SELECT * FROM t1 WHERE a IN (SELECT z FROM t2) AND b = ?
+  } 
+  11 1 {
+    CREATE UNIQUE INDEX i1 ON t1(a, b);
+  } {
+    SELECT * FROM t1 WHERE a IS NULL AND b IN (SELECT z FROM t2)
+  } 
+  12 0 {
+    CREATE UNIQUE INDEX i1 ON t1(a, b);
+  } {
+    SELECT * FROM t1 WHERE a = ? AND b IN (SELECT z FROM t2)
+  } 
+} {
+  do_test 1.1.$tn {
+    execsql BEGIN
+    execsql $idx
+
+    catch { array unset root_to_tbl }
+    catch { array unset csr_to_root }
+
+    db eval {SELECT rootpage, tbl_name FROM sqlite_schema} {
+      set root_to_tbl($rootpage) $tbl_name
+    }
+
+    set nSeen 0
+    db eval "explain $sql" {
+      if {$opcode=="OpenRead"} {
+        set csr_to_root($p1) $p2
+      }
+      if {$opcode=="Next"} {
+        catch {
+          set root $csr_to_root($p1)
+          set tbl $root_to_tbl($root)
+          if {$tbl=="t1"} {incr nSeen}
+        }
+      }
+    }
+
+    execsql ROLLBACK
+
+    set nSeen
+  } $nNext
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 2.0 {
+  CREATE TABLE t1(a TEXT PRIMARY KEY, b TEXT) WITHOUT ROWID;
+  INSERT INTO t1 VALUES('1', 'one');
+  INSERT INTO t1 VALUES('2', NULL);
+  INSERT INTO t1 VALUES('3', 'three');
+}
+
+do_execsql_test 2.1 {
+  SELECT b FROM t1 WHERE a IN (1,2,3) ORDER BY b ASC NULLS LAST;
+} {one three {}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 3.0 {
+  CREATE TABLE x1(a);
+  INSERT INTO x1 VALUES(1), (2), (3);
+
+  CREATE TABLE x2(b);
+  INSERT INTO x2 VALUES(4), (5), (6);
+
+  CREATE TABLE t1(u);
+  INSERT INTO t1 VALUES(1), (2), (3), (4), (5), (6);
+
+  CREATE VIEW v1 AS SELECT u FROM t1 WHERE u IN (
+    SELECT a FROM x1
+  );
+  CREATE VIEW v2 AS SELECT u FROM t1 WHERE u IN (
+    SELECT b FROM x2
+  );
+}
+
+do_execsql_test 3.1 {
+  SELECT * FROM v1
+} {
+  1 2 3
+}
+
+do_execsql_test 3.2 {
+  SELECT * FROM v2
+} {
+  4 5 6 
+}
+
+do_execsql_test 3.3 {
+  SELECT * FROM v2
+  UNION ALL
+  SELECT * FROM v1
+} {
+  4 5 6
+  1 2 3 
+}
+
+do_execsql_test 3.4 {
+  WITH w1 AS (
+    SELECT 1 UNION ALL SELECT 2 UNION ALL SELECT 3
+  ),
+  w2 AS (
+    SELECT 4 UNION ALL SELECT 5 UNION ALL SELECT 6
+  )
+  SELECT * FROM v1 WHERE u IN w1
+  UNION ALL
+  SELECT * FROM v2 WHERE u IN w2
+} {
+  1 2 3 4 5 6
+}
+
+# 2024-11-20 https://sqlite.org/forum/forumpost/0b9ded2f8428ac00
+#
+# Bug in SubrtnSig logic.  If a SELECT statement is copied and the copy
+# is subsequently modified, we need to change the Select.selId on the
+# copy so that when the copy is used to generate code, the SubrtnSig
+# logic won't try to substitute the original SELECT in place of the
+# copy which is now different.
+#
+do_execsql_test 3.5 {
+  DROP TABLE IF EXISTS t1;
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t1 (a int UNIQUE);
+  CREATE TABLE t2 (b int UNIQUE);
+  INSERT INTO t1 VALUES (1);
+  INSERT INTO t2 VALUES (1), (2);
+  SELECT t1.a, t2.b FROM t1, t2 WHERE (t1.a, t2.b) = (1, 1);
+} {1 1}
+do_execsql_test 3.6 {
+  SELECT t1.a, t2.b FROM t1, t2 WHERE (t1.a, t2.b) IN ((1, 1));
+} {1 1}
+do_execsql_test 3.7 {
+  SELECT t1.a, t2.b FROM t1, t2 WHERE (t1.a, t2.b) = (1, 2);
+} {1 2}
+do_execsql_test 3.8 {
+  SELECT t1.a, t2.b FROM t1, t2 WHERE (t1.a, t2.b) IN ((1, 2));
+} {1 2}
+
+finish_test
diff --git a/test/incrblob.test b/test/incrblob.test
new file mode 100644
index 0000000000000000000000000000000000000000..c56689ee1bbcfef977e4b7f72e69bb52536f6131
--- /dev/null
+++ b/test/incrblob.test
@@ -0,0 +1,693 @@
+# 2007 May 1
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# $Id: incrblob.test,v 1.24 2009/06/19 22:23:42 drh Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable {!autovacuum || !pragma || !incrblob} {
+  finish_test
+  return
+}
+
+do_test incrblob-1.1 {
+  execsql {
+    CREATE TABLE blobs(k PRIMARY KEY, v BLOB);
+    INSERT INTO blobs VALUES('one', X'0102030405060708090A');
+    INSERT INTO blobs VALUES('two', X'0A090807060504030201');
+  }
+} {}
+
+do_test incrblob-1.2.1 {
+  set ::blob [db incrblob blobs v 1]
+  string match incrblob_* $::blob
+} {1}
+unset -nocomplain data
+do_test incrblob-1.2.2 {
+  binary scan [read $::blob] c* data
+  set data
+} {1 2 3 4 5 6 7 8 9 10}
+do_test incrblob-1.2.3 {
+  seek $::blob 0
+  puts -nonewline $::blob "1234567890"
+  flush $::blob
+} {}
+do_test incrblob-1.2.4 {
+  seek $::blob 0
+  binary scan [read $::blob] c* data
+  set data
+} {49 50 51 52 53 54 55 56 57 48}
+do_test incrblob-1.2.5 {
+  close $::blob
+} {}
+do_test incrblob-1.2.6 {
+  execsql {
+    SELECT v FROM blobs WHERE rowid = 1;
+  }
+} {1234567890}
+
+#--------------------------------------------------------------------
+# Test cases incrblob-1.3.X check that it is possible to read and write
+# regions of a blob that lie on overflow pages.
+#
+do_test incrblob-1.3.1 {
+  set ::str "[string repeat . 10000]"
+  execsql {
+    INSERT INTO blobs(rowid, k, v) VALUES(3, 'three', $::str);
+  }
+} {}
+
+do_test incrblob-1.3.2 {
+  set ::blob [db incrblob blobs v 3]
+  seek $::blob 8500
+  read $::blob 10
+} {..........}
+do_test incrblob-1.3.3 {
+  seek $::blob 8500
+  puts -nonewline $::blob 1234567890
+} {}
+do_test incrblob-1.3.4 {
+  seek $::blob 8496
+  read $::blob 10
+} {....123456}
+do_test incrblob-1.3.10 {
+  close $::blob
+} {}
+
+#------------------------------------------------------------------------
+# incrblob-2.*: 
+#
+# Test that the following operations use ptrmap pages to reduce
+# unnecessary reads:
+#
+#     * Reading near the end of a blob,
+#     * Writing near the end of a blob, and
+#     * SELECT a column value that is located on an overflow page.
+#
+proc nRead {db} {
+  set bt [btree_from_db $db]
+  db_enter $db
+  array set stats [btree_pager_stats $bt]
+  db_leave $db
+  return $stats(read)
+}
+proc nWrite {db} {
+  set bt [btree_from_db $db]
+  db_enter $db
+  array set stats [btree_pager_stats $bt]
+  db_leave $db
+  return $stats(write)
+}
+
+sqlite3_soft_heap_limit 0
+
+foreach AutoVacuumMode [list 0 1] {
+
+  if {$AutoVacuumMode>0} {
+    ifcapable !autovacuum {
+      break
+    }
+  }
+
+  db close
+  forcedelete test.db test.db-journal
+
+  sqlite3 db test.db
+  execsql "PRAGMA mmap_size = 0"
+  execsql "PRAGMA auto_vacuum = $AutoVacuumMode"
+
+  # Extra value added to size answers
+  set ib2_extra 0
+  if {$AutoVacuumMode} {incr ib2_extra}
+  if {[nonzero_reserved_bytes]} {incr ib2_extra}
+
+  do_test incrblob-2.$AutoVacuumMode.1 {
+    set ::str [string repeat abcdefghij 2900]
+    execsql {
+      BEGIN;
+      CREATE TABLE blobs(k PRIMARY KEY, v BLOB, i INTEGER);
+      DELETE FROM blobs;
+      INSERT INTO blobs VALUES('one', $::str || randstr(500,500), 45);
+      COMMIT;
+    }
+    expr [file size test.db]/1024
+  } [expr 31 + $ib2_extra]
+
+  ifcapable autovacuum {
+    do_test incrblob-2.$AutoVacuumMode.2 {
+      execsql {
+        PRAGMA auto_vacuum;
+      }
+    } $AutoVacuumMode
+  }
+
+  do_test incrblob-2.$AutoVacuumMode.3 {
+    # Open and close the db to make sure the page cache is empty.
+    db close
+    sqlite3 db test.db
+    execsql "PRAGMA mmap_size = 0"
+  
+    # Read the last 20 bytes of the blob via a blob handle.
+    set ::blob [db incrblob blobs v 1]
+    seek $::blob -20 end
+    set ::fragment [read $::blob]
+    close $::blob
+  
+    # If the database is not in auto-vacuum mode, the whole of
+    # the overflow-chain must be scanned. In auto-vacuum mode,
+    # sqlite uses the ptrmap pages to avoid reading the other pages.
+    #
+    nRead db
+  } [expr $AutoVacuumMode ? 4 : 30+$ib2_extra]
+
+  do_test incrblob-2.$AutoVacuumMode.4 {
+    string range [db one {SELECT v FROM blobs}] end-19 end
+  } $::fragment
+
+  do_test incrblob-2.$AutoVacuumMode.5 {
+    # Open and close the db to make sure the page cache is empty.
+    db close
+    sqlite3 db test.db
+    execsql "PRAGMA mmap_size = 0"
+  
+    # Write the second-to-last 20 bytes of the blob via a blob handle.
+    #
+    set ::blob [db incrblob blobs v 1]
+    seek $::blob -40 end
+    puts -nonewline $::blob "1234567890abcdefghij"
+    flush $::blob
+  
+    # If the database is not in auto-vacuum mode, the whole of
+    # the overflow-chain must be scanned. In auto-vacuum mode,
+    # sqlite uses the ptrmap pages to avoid reading the other pages.
+    #
+    nRead db
+  } [expr $AutoVacuumMode ? 4 : 30 + $ib2_extra]
+
+  # Pages 1 (the write-counter) and 32 (the blob data) were written.
+  do_test incrblob-2.$AutoVacuumMode.6 {
+    close $::blob
+    nWrite db
+  } 2
+
+  do_test incrblob-2.$AutoVacuumMode.7 {
+    string range [db one {SELECT v FROM blobs}] end-39 end-20
+  } "1234567890abcdefghij"
+
+  do_test incrblob-2.$AutoVacuumMode.8 {
+    # Open and close the db to make sure the page cache is empty.
+    db close
+    sqlite3 db test.db
+    execsql { PRAGMA mmap_size = 0 }
+
+    execsql { SELECT i FROM blobs } 
+  } {45}
+
+  do_test incrblob-2.$AutoVacuumMode.9 {
+    nRead db
+  } [expr $AutoVacuumMode ? 4 : 30 + $ib2_extra]
+}
+sqlite3_soft_heap_limit $cmdlinearg(soft-heap-limit)
+
+#------------------------------------------------------------------------
+# incrblob-3.*: 
+#
+# Test the outcome of trying to write to a read-only blob handle.
+#
+do_test incrblob-3.1 {
+  set ::blob [db incrblob -readonly blobs v 1]
+  seek $::blob -40 end
+  read $::blob 20
+} "1234567890abcdefghij"
+do_test incrblob-3.2 {
+  seek $::blob 0
+  set rc [catch {
+    puts -nonewline $::blob "helloworld"
+  } msg]
+  close $::blob
+  list $rc $msg
+} "1 {channel \"$::blob\" wasn't opened for writing}"
+
+do_test incrblob-3.3 {
+  set ::blob [db incrblob -readonly blobs v 1]
+  seek $::blob -40 end
+  read $::blob 20
+} "1234567890abcdefghij"
+do_test incrblob-3.4 {
+  set rc [catch {
+    sqlite3_blob_write $::blob 20 "qwertyuioplkjhgfds" 
+  } msg]
+  list $rc $msg
+} {1 SQLITE_READONLY}
+catch {close $::blob}
+
+#------------------------------------------------------------------------
+# incrblob-4.*: 
+#
+# Try a couple of error conditions:
+#
+#     4.1 - Attempt to open a row that does not exist.
+#     4.2 - Attempt to open a column that does not exist.
+#     4.3 - Attempt to open a table that does not exist.
+#     4.4 - Attempt to open a database that does not exist.
+#
+#     4.5 - Attempt to open an integer
+#     4.6 - Attempt to open a real value
+#     4.7 - Attempt to open an SQL null
+#
+#     4.8 - Attempt to open an indexed column for writing
+#     4.9 - Attempt to open an indexed column for reading (this works)
+#
+#     4.11 - Attempt to open a column of a view.
+#     4.12 - Attempt to open a column of a virtual table.
+#
+do_test incrblob-4.1 {
+  set rc [catch {
+    set ::blob [db incrblob blobs v 2]
+  } msg ] 
+  list $rc $msg
+} {1 {no such rowid: 2}}
+do_test incrblob-4.2 {
+  set rc [catch {
+    set ::blob [db incrblob blobs blue 1]
+  } msg ] 
+  list $rc $msg
+} {1 {no such column: "blue"}}
+do_test incrblob-4.3 {
+  set rc [catch {
+    set ::blob [db incrblob nosuchtable blue 1]
+  } msg ]
+  list $rc $msg
+} {1 {no such table: main.nosuchtable}}
+do_test incrblob-4.4 {
+  set rc [catch {
+    set ::blob [db incrblob nosuchdb blobs v 1]
+  } msg ] 
+  list $rc $msg
+} {1 {no such table: nosuchdb.blobs}}
+
+do_test incrblob-4.5 {
+  set rc [catch {
+    set ::blob [db incrblob blobs i 1]
+  } msg ] 
+  list $rc $msg
+} {1 {cannot open value of type integer}}
+do_test incrblob-4.6 {
+  execsql {
+    INSERT INTO blobs(k, v, i) VALUES(123, 567.765, NULL);
+  }
+  set rc [catch {
+    set ::blob [db incrblob blobs v 2]
+  } msg ] 
+  list $rc $msg
+} {1 {cannot open value of type real}}
+do_test incrblob-4.7 {
+  set rc [catch {
+    set ::blob [db incrblob blobs i 2]
+  } msg ] 
+  list $rc $msg
+} {1 {cannot open value of type null}}
+
+do_test incrblob-4.8.1 {
+  execsql {
+    INSERT INTO blobs(k, v, i) VALUES(X'010203040506070809', 'hello', 'world');
+  }
+  set rc [catch {
+    set ::blob [db incrblob blobs k 3]
+  } msg ] 
+  list $rc $msg
+} {1 {cannot open indexed column for writing}}
+do_test incrblob-4.8.2 {
+  execsql {
+    CREATE TABLE t3(a INTEGER PRIMARY KEY, b);
+    INSERT INTO t3 VALUES(1, 2);
+  }
+  set rc [catch {
+    set ::blob [db incrblob -readonly t3 a 1]
+  } msg ] 
+  list $rc $msg
+} {1 {cannot open value of type null}}
+do_test incrblob-4.8.3 {
+  set rc [catch {
+    set ::blob [db incrblob -readonly t3 rowid 1]
+  } msg ] 
+  list $rc $msg
+} {1 {no such column: "rowid"}}
+
+do_test incrblob-4.9.1 {
+  set rc [catch {
+    set ::blob [db incrblob -readonly blobs k 3]
+  } msg]
+} {0}
+do_test incrblob-4.9.2 {
+  binary scan [read $::blob] c* c
+  close $::blob
+  set c
+} {1 2 3 4 5 6 7 8 9}
+
+do_test incrblob-4.10 {
+  set ::blob [db incrblob -readonly blobs k 3]
+  set rc [catch { sqlite3_blob_read $::blob 10 100 } msg]
+  list $rc $msg
+} {1 SQLITE_ERROR}
+do_test incrblob-4.10.2 {
+  close $::blob
+} {}
+
+ifcapable view {
+  do_test incrblob-4.11 {
+    execsql { CREATE VIEW blobs_view AS SELECT k, v, i FROM blobs }
+    set rc [catch { db incrblob blobs_view v 3 } msg]
+    list $rc $msg
+  } {1 {cannot open view: blobs_view}}
+}
+ifcapable vtab {
+  register_echo_module [sqlite3_connection_pointer db]
+  do_test incrblob-4.12 {
+    execsql { CREATE VIRTUAL TABLE blobs_echo USING echo(blobs) }
+    set rc [catch { db incrblob blobs_echo v 3 } msg]
+    list $rc $msg
+  } {1 {cannot open virtual table: blobs_echo}}
+}
+
+
+#------------------------------------------------------------------------
+# incrblob-5.*: 
+#
+#     Test that opening a blob in an attached database works.
+#
+ifcapable attach {
+  do_test incrblob-5.1 {
+    forcedelete test2.db test2.db-journal
+    set ::size [expr [file size $::cmdlinearg(INFO_SCRIPT)]]
+    execsql {
+      ATTACH 'test2.db' AS aux;
+      CREATE TABLE aux.files(name, text);
+      INSERT INTO aux.files VALUES('this one', zeroblob($::size));
+    }
+    set fd  [db incrblob aux files text 1]
+    fconfigure $fd -translation binary
+    set fd2 [open $::cmdlinearg(INFO_SCRIPT)]
+    fconfigure $fd2 -translation binary
+    puts -nonewline $fd [read $fd2]
+    close $fd
+    close $fd2
+    set ::text [db one {select text from aux.files}]
+    string length $::text
+  } [file size $::cmdlinearg(INFO_SCRIPT)]
+  do_test incrblob-5.2 {
+    set fd2 [open $::cmdlinearg(INFO_SCRIPT)]
+    fconfigure $fd2 -translation binary
+    set ::data [read $fd2]
+    close $fd2
+    set ::data
+  } $::text
+}
+
+# free memory
+unset -nocomplain ::data
+unset -nocomplain ::text
+
+#------------------------------------------------------------------------
+# incrblob-6.*: 
+#
+#     Test that opening a blob for write-access is impossible if
+#     another connection has the database RESERVED lock.
+#
+#     Then test that blob writes that take place inside of a
+#     transaction are not visible to external connections until
+#     after the transaction is commited and the blob channel 
+#     closed.
+#
+#     This test does not work with the "memsubsys1" configuration.
+#     Permutation memsubsys1 configures a very small static allocation 
+#     for use as page-cache memory. This causes SQLite to upgrade
+#     to an exclusive lock when writing earlier than usual, which
+#     makes some of these tests fail.
+#
+sqlite3_soft_heap_limit 0
+if {[permutation] != "memsubsys1"} {
+  do_test incrblob-6.1 {
+    sqlite3 db2 test.db
+    execsql {
+      BEGIN;
+      INSERT INTO blobs(k, v, i) VALUES('a', 'different', 'connection');
+    } db2
+  } {}
+  do_test incrblob-6.2 {
+    execsql {
+      SELECT rowid FROM blobs ORDER BY rowid
+    }
+  } {1 2 3}
+  do_test incrblob-6.3 {
+    set rc [catch {
+      db incrblob blobs v 1
+    } msg]
+    list $rc $msg
+  } {1 {database is locked}}
+  do_test incrblob-6.4 {
+    set rc [catch {
+      db incrblob blobs v 3
+    } msg]
+    list $rc $msg
+  } {1 {database is locked}}
+  do_test incrblob-6.5 {
+    set ::blob [db incrblob -readonly blobs v 3]
+    read $::blob
+  } {hello}
+  do_test incrblob-6.6 {
+    close $::blob
+  } {}
+  
+  do_test incrblob-6.7 {
+    set ::blob [db2 incrblob blobs i 4]
+    gets $::blob
+  } {connection}
+  do_test incrblob-6.8 {
+    tell $::blob
+  } {10}
+  do_test incrblob-6.9 {
+    seek $::blob 0
+    puts -nonewline $::blob "invocation"
+    flush $::blob
+  } {}
+  
+  # At this point commit should be illegal (because 
+  # there is an open blob channel).
+  #
+  do_test incrblob-6.11 {
+    catchsql {
+      COMMIT;
+    } db2
+  } {1 {cannot commit transaction - SQL statements in progress}}
+  
+  do_test incrblob-6.12 {
+    execsql {
+      SELECT * FROM blobs WHERE rowid = 4;
+    }
+  } {}
+  do_test incrblob-6.13 {
+    close $::blob
+  } {}
+  do_test incrblob-6.14 {
+    catchsql {
+      COMMIT;
+    } db2
+  } {0 {}}
+  do_test incrblob-6.15 {
+    execsql {
+      SELECT * FROM blobs WHERE rowid = 4;
+    }
+  } {a different invocation}
+  db2 close
+}
+sqlite3_soft_heap_limit $cmdlinearg(soft-heap-limit)
+
+#-----------------------------------------------------------------------
+# The following tests verify the behavior of the incremental IO
+# APIs in the following cases:
+#
+#     7.1 A row that containing an open blob is modified.
+#
+#     7.2 A CREATE TABLE requires that an overflow page that is part
+#         of an open blob is moved.
+#
+#     7.3 An INCREMENTAL VACUUM moves an overflow page that is part
+#         of an open blob.
+#
+# In the first case above, correct behavior is for all subsequent
+# read/write operations on the blob-handle to return SQLITE_ABORT.
+# More accurately, blob-handles are invalidated whenever the table
+# they belong to is written to.
+#
+# The second two cases have no external effect. They are testing
+# that the internal cache of overflow page numbers is correctly
+# invalidated.
+#
+do_test incrblob-7.1.0 {
+  execsql {
+    BEGIN;
+    DROP TABLE blobs;
+    CREATE TABLE t1 (a, b, c, d BLOB);
+    INSERT INTO t1(a, b, c, d) VALUES(1, 2, 3, 4);
+    COMMIT;
+  }
+} {}
+
+foreach {tn arg} {1 "" 2 -readonly} {
+
+  execsql {
+    UPDATE t1 SET d = zeroblob(10000);
+  }
+
+  do_test incrblob-7.1.$tn.1 {
+    set ::b [eval db incrblob $arg t1 d 1]
+    binary scan [sqlite3_blob_read $::b 5000 5] c* c
+    set c
+  } {0 0 0 0 0}
+  do_test incrblob-7.1.$tn.2 {
+    execsql {
+      UPDATE t1 SET d = 15;
+    }
+  } {}
+  do_test incrblob-7.1.$tn.3 {
+    set rc [catch { sqlite3_blob_read $::b 5000 5 } msg]
+    list $rc $msg
+  } {1 SQLITE_ABORT}
+  do_test incrblob-7.1.$tn.4 {
+    execsql {
+      SELECT d FROM t1;
+    }
+  } {15}
+  do_test incrblob-7.1.$tn.5 {
+    set rc [catch { close $::b } msg]
+    list $rc $msg
+  } {0 {}}
+  do_test incrblob-7.1.$tn.6 {
+    execsql {
+      SELECT d FROM t1;
+    }
+  } {15}
+
+}
+
+set fd [open $::cmdlinearg(INFO_SCRIPT)]
+fconfigure $fd -translation binary
+set ::data [read $fd 14000]
+close $fd
+
+db close
+forcedelete test.db test.db-journal
+sqlite3 db test.db
+
+do_test incrblob-7.2.1 {
+  execsql {
+    PRAGMA auto_vacuum = "incremental";
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b);        -- root@page3
+    INSERT INTO t1 VALUES(123, $::data);
+  }
+  set ::b [db incrblob -readonly t1 b 123]
+  fconfigure $::b -translation binary
+  read $::b
+} $::data
+do_test incrblob-7.2.2 {
+  execsql {
+    CREATE TABLE t2(a INTEGER PRIMARY KEY, b);        -- root@page4
+  }
+  seek $::b 0
+  read $::b
+} $::data
+do_test incrblob-7.2.3 {
+  close $::b
+  execsql {
+    SELECT rootpage FROM sqlite_master;
+  }
+} {3 4}
+
+set ::otherdata "[string range $::data 0 1000][string range $::data 1001 end]"
+do_test incrblob-7.3.1 {
+  execsql {
+    INSERT INTO t2 VALUES(456, $::otherdata);
+  }
+  set ::b [db incrblob -readonly t2 b 456]
+  fconfigure $::b -translation binary
+  read $::b
+} $::otherdata
+do_test incrblob-7.3.2 {
+  expr [file size test.db]/1024
+} 30
+do_test incrblob-7.3.3 {
+  execsql {
+    DELETE FROM t1 WHERE a = 123;
+    PRAGMA INCREMENTAL_VACUUM(0);
+  }
+  seek $::b 0
+  read $::b
+} $::otherdata
+
+# Attempt to write on a read-only blob.  Make sure the error code
+# gets set.  Ticket #2464.
+#
+do_test incrblob-7.4 {
+  set rc [catch {sqlite3_blob_write $::b 10 HELLO} msg]
+  lappend rc $msg
+} {1 SQLITE_READONLY}
+do_test incrblob-7.5 {
+  sqlite3_errcode db
+} {SQLITE_READONLY}
+do_test incrblob-7.6 {
+  sqlite3_errmsg db
+} {attempt to write a readonly database}
+
+# Test that if either the "offset" or "amount" arguments to
+# sqlite3_blob_write() are less than zero, SQLITE_ERROR is returned.
+# 
+do_test incrblob-8.1 {
+  execsql { INSERT INTO t1 VALUES(314159, 'sqlite') }
+  set ::b [db incrblob t1 b 314159]
+  fconfigure $::b -translation binary
+  set rc [catch {sqlite3_blob_write $::b 10 HELLO -1} msg]
+  lappend rc $msg
+} {1 SQLITE_ERROR}
+do_test incrblob-8.2 {
+  sqlite3_errcode db
+} {SQLITE_ERROR}
+do_test incrblob-8.3 {
+  set rc [catch {sqlite3_blob_write $::b -1 HELLO 5} msg]
+  lappend rc $msg
+} {1 SQLITE_ERROR}
+do_test incrblob-8.4 {
+  sqlite3_errcode db
+} {SQLITE_ERROR}
+do_test incrblob-8.5 {
+  execsql {SELECT b FROM t1 WHERE a = 314159}
+} {sqlite}
+do_test incrblob-8.6 {
+  set rc [catch {sqlite3_blob_write $::b 0 etilqs 6} msg]
+  lappend rc $msg
+} {0 {}}
+do_test incrblob-8.7 {
+  execsql {SELECT b FROM t1 WHERE a = 314159}
+} {etilqs}
+
+# The following test case exposes an instance in the blob code where
+# an error message was set using a call similar to sqlite3_mprintf(zErr),
+# where zErr is an arbitrary string. This is no good if the string contains
+# characters that can be mistaken for printf() formatting directives.
+#
+do_test incrblob-9.1 {
+  list [catch { db incrblob t1 "A tricky column name %s%s" 1 } msg] $msg
+} {1 {no such column: "A tricky column name %s%s"}}
+
+
+finish_test
diff --git a/test/incrblob2.test b/test/incrblob2.test
new file mode 100644
index 0000000000000000000000000000000000000000..989da147cc5dd4a189134ae822301ca4628e84b3
--- /dev/null
+++ b/test/incrblob2.test
@@ -0,0 +1,453 @@
+# 2008 June 9
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test that it is possible to have two open blob handles on a single
+# blob object.
+#
+# $Id: incrblob2.test,v 1.11 2009/06/29 06:00:37 danielk1977 Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable {!autovacuum || !pragma || !incrblob} {
+  finish_test
+  return
+}
+
+do_test incrblob2-1.0 {
+  execsql {
+    CREATE TABLE blobs(id INTEGER PRIMARY KEY, data BLOB);
+    INSERT INTO blobs VALUES(NULL, zeroblob(5000));
+    INSERT INTO blobs VALUES(NULL, zeroblob(5000));
+    INSERT INTO blobs VALUES(NULL, zeroblob(5000));
+    INSERT INTO blobs VALUES(NULL, zeroblob(5000));
+  }
+} {}
+
+foreach iOffset [list 0 256 4094] {
+  do_test incrblob2-1.$iOffset.1 {
+    set fd [db incrblob blobs data 1]
+    puts $fd "[string repeat x $iOffset]SQLite version 3.6.0"
+    close $fd
+  } {}
+  
+  do_test incrblob2-1.$iOffset.2 {
+    set fd1 [db incrblob blobs data 1]
+    set fd2 [db incrblob blobs data 1]
+    fconfigure $fd1 -buffering none
+    fconfigure $fd2 -buffering none
+    if {$iOffset != 0} {
+      seek $fd2 $iOffset start
+      seek $fd1 $iOffset start
+    }
+    read $fd1 6
+  } {SQLite}
+  
+  do_test incrblob2-1.$iOffset.3 {
+    read $fd2 6
+  } {SQLite}
+  
+  do_test incrblob2-1.$iOffset.4 {
+    seek $fd2 $iOffset start
+    seek $fd1 $iOffset start
+    puts -nonewline $fd2 "etiLQS"
+  } {}
+
+  
+  do_test incrblob2-1.$iOffset.5 {
+    seek $fd1 $iOffset start
+    read $fd1 6
+  } {etiLQS}
+  
+  do_test incrblob2-1.$iOffset.6 {
+    seek $fd2 $iOffset start
+    read $fd2 6
+  } {etiLQS}
+  
+  do_test incrblob2-1.$iOffset.7 {
+    seek $fd1 $iOffset start
+    read $fd1 6
+  } {etiLQS}
+  
+  do_test incrblob2-1.$iOffset.8 {
+    close $fd1
+    close $fd2
+  } {}
+}
+
+#--------------------------------------------------------------------------
+
+foreach iOffset [list 0 256 4094] {
+
+  do_test incrblob2-2.$iOffset.1 {
+    set fd1 [db incrblob blobs data 1]
+    seek $fd1 [expr $iOffset - 5000] end
+    fconfigure $fd1 -buffering none
+
+    set fd2 [db incrblob blobs data 1]
+    seek $fd2 [expr $iOffset - 5000] end
+    fconfigure $fd2 -buffering none
+
+    puts -nonewline $fd1 "123456"
+  } {}
+  
+  do_test incrblob2-2.$iOffset.2 {
+    read $fd2 6
+  } {123456}
+
+  do_test incrblob2-2.$iOffset.3 {
+    close $fd1
+    close $fd2
+  } {}
+}
+
+do_test incrblob2-3.1 {
+  set fd1 [db incrblob blobs data 1]
+  fconfigure $fd1 -buffering none
+} {}
+do_test incrblob2-3.2 {
+  execsql {
+    INSERT INTO blobs VALUES(5, zeroblob(10240));
+  }
+} {}
+do_test incrblob2-3.3 {
+  set rc [catch { read $fd1 6 } msg]
+  list $rc $msg
+} {0 123456}
+do_test incrblob2-3.4 {
+  close $fd1
+} {}
+
+#--------------------------------------------------------------------------
+# The following tests - incrblob2-4.* - test that blob handles are 
+# invalidated at the correct times.
+#
+do_test incrblob2-4.1 {
+  unset -nocomplain data
+  db eval BEGIN
+  db eval { CREATE TABLE t1(id INTEGER PRIMARY KEY, data BLOB); }
+  for {set ii 1} {$ii < 100} {incr ii} {
+    set data [string repeat "blob$ii" 500]
+    db eval { INSERT INTO t1 VALUES($ii, $data) }
+  }
+  db eval COMMIT
+} {}
+
+proc aborted_handles {} {
+  global handles
+
+  set aborted {}
+  for {set ii 1} {$ii < 100} {incr ii} {
+    set str "blob$ii"
+    set nByte [string length $str]
+    set iOffset [expr $nByte * $ii * 2]
+
+    set rc [catch {sqlite3_blob_read $handles($ii) $iOffset $nByte} msg]
+    if {$rc && $msg eq "SQLITE_ABORT"} {
+      lappend aborted $ii
+    } else {
+      if {$rc || $msg ne $str} {
+        error "blob $ii: $msg"
+      }
+    }
+  }
+  set aborted
+}
+
+do_test incrblob2-4.2 {
+  for {set ii 1} {$ii < 100} {incr ii} {
+    set handles($ii) [db incrblob t1 data $ii]
+  }
+  aborted_handles
+} {}
+
+# Update row 3. This should abort handle 3 but leave all others untouched.
+#
+do_test incrblob2-4.3 {
+  db eval {UPDATE t1 SET data = data || '' WHERE id = 3}
+  aborted_handles
+} {3}
+
+# Test that a write to handle 3 also returns SQLITE_ABORT.
+#
+do_test incrblob2-4.3.1 {
+  set rc [catch {sqlite3_blob_write $::handles(3) 10 HELLO} msg]
+  list $rc $msg
+} {1 SQLITE_ABORT}
+
+# Delete row 14. This should abort handle 6 but leave all others untouched.
+#
+do_test incrblob2-4.4 {
+  db eval {DELETE FROM t1 WHERE id = 14}
+  aborted_handles
+} {3 14}
+
+# Change the rowid of row 15 to 102. Should abort handle 15.
+#
+do_test incrblob2-4.5 {
+  db eval {UPDATE t1 SET id = 102 WHERE id = 15}
+  aborted_handles
+} {3 14 15}
+
+# Clobber row 92 using INSERT OR REPLACE.
+#
+do_test incrblob2-4.6 {
+  db eval {INSERT OR REPLACE INTO t1 VALUES(92, zeroblob(1000))}
+  aborted_handles
+} {3 14 15 92}
+
+# Clobber row 65 using UPDATE OR REPLACE on row 35. This should abort 
+# handles 35 and 65.
+#
+do_test incrblob2-4.7 {
+  db eval {UPDATE OR REPLACE t1 SET id = 65 WHERE id = 35}
+  aborted_handles
+} {3 14 15 35 65 92}
+
+# Insert a couple of new rows. This should not invalidate any handles.
+#
+do_test incrblob2-4.9 {
+  db eval {INSERT INTO t1 SELECT NULL, data FROM t1}
+  aborted_handles
+} {3 14 15 35 65 92}
+
+# Delete all rows from 1 to 25. This should abort all handles up to 25.
+#
+do_test incrblob2-4.9 {
+  db eval {DELETE FROM t1 WHERE id >=1 AND id <= 25}
+  aborted_handles
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 35 65 92}
+
+# Delete the whole table (this will use sqlite3BtreeClearTable()). All handles
+# should now be aborted.
+#
+do_test incrblob2-4.10 {
+  db eval {DELETE FROM t1}
+  aborted_handles
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99}
+
+do_test incrblob2-4.1.X {
+  for {set ii 1} {$ii < 100} {incr ii} {
+    close $handles($ii) 
+  }
+} {}
+
+#--------------------------------------------------------------------------
+# The following tests - incrblob2-5.* - test that in shared cache an open
+# blob handle counts as a read-lock on its table.
+#
+ifcapable shared_cache {
+  db close
+  set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
+
+  do_test incrblob2-5.1 {
+    sqlite3 db test.db
+    sqlite3 db2 test.db
+
+    execsql {
+      INSERT INTO t1 VALUES(1, 'abcde');
+    }
+  } {}
+
+  do_test incrblob2-5.2 {
+    catchsql { INSERT INTO t1 VALUES(2, 'fghij') } db2
+  } {0 {}}
+
+  do_test incrblob2-5.3 {
+    set blob [db incrblob t1 data 1]
+    catchsql { INSERT INTO t1 VALUES(3, 'klmno') } db2
+  } {1 {database table is locked}}
+
+  do_test incrblob2-5.4 {
+    close $blob
+    execsql BEGIN db2
+    catchsql { INSERT INTO t1 VALUES(4, 'pqrst') } db2
+  } {0 {}}
+
+  do_test incrblob2-5.5 {
+    set rc [catch { db incrblob -readonly t1 data 1 } msg]
+    list $rc $msg
+  } {1 {database table is locked: t1}}
+
+  do_test incrblob2-5.6 {
+    execsql { PRAGMA read_uncommitted=1 }
+    set blob [db incrblob -readonly t1 data 4]
+    read $blob
+  } {pqrst}
+
+  do_test incrblob2-5.7 {
+    catchsql { INSERT INTO t1 VALUES(3, 'klmno') } db2
+  } {0 {}}
+
+  do_test incrblob2-5.8 {
+    close $blob
+  } {}
+
+  db2 close
+  db close
+  sqlite3_enable_shared_cache $::enable_shared_cache
+}
+
+#--------------------------------------------------------------------------
+# The following tests - incrblob2-6.* - test a specific scenario that might
+# be causing an error.
+#
+sqlite3 db test.db
+do_test incrblob2-6.1 {
+  execsql {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES(1, zeroblob(100));
+  }
+  
+  set rdHandle [db incrblob -readonly t1 data 1]
+  set wrHandle [db incrblob t1 data 1]
+
+  sqlite3_blob_read $rdHandle 0 100
+
+  sqlite3_blob_write $wrHandle 0 ABCDEF
+
+  close $wrHandle
+  close $rdHandle
+} {}
+
+do_test incrblob2-6.2 {
+  set rdHandle [db incrblob -readonly t1 data 1]
+  sqlite3_blob_read $rdHandle 0 2
+} {AB}
+
+if {$::tcl_platform(pointerSize)>=8} {
+  do_test incrblob2-6.2b {
+    set rc [catch {
+      # Prior to 2015-02-07, the following caused a segfault due to
+      # integer overflow.
+      sqlite3_blob_read $rdHandle 2147483647 2147483647
+    } errmsg]
+    if {[string match {out of memory in *test_blob.c} $errmsg]} {
+      set errmsg SQLITE_ERROR
+    }
+    lappend rc $errmsg
+  } {1 SQLITE_ERROR}
+}
+do_test incrblob2-6.2c {
+  set rc [catch {
+    # Prior to 2015-02-07, the following caused a segfault due to
+    # integer overflow.
+    sqlite3_blob_read $rdHandle 2147483647 100
+  } errmsg]
+  lappend rc $errmsg
+} {1 SQLITE_ERROR}
+
+do_test incrblob2-6.3 {
+  set wrHandle [db incrblob t1 data 1]
+  sqlite3_blob_write $wrHandle 0 ZZZZZZZZZZ
+  sqlite3_blob_read $rdHandle 2 4
+} {ZZZZ}
+
+do_test incrblob2-6.3b {
+  set rc [catch {
+    # Prior to 2015-02-07, the following caused a segfault due to
+    # integer overflow.
+    sqlite3_blob_write $wrHandle 2147483647 YYYYYYYYYYYYYYYYYY
+  } errmsg]
+  lappend rc $errmsg
+} {1 SQLITE_ERROR}
+do_test incrblob2-6.3c {
+  sqlite3_blob_read $rdHandle 2 4
+} {ZZZZ}
+
+
+do_test incrblob2-6.4 {
+  close $wrHandle
+  close $rdHandle
+} {}
+
+sqlite3_memory_highwater 1
+do_test incrblob2-7.1 {
+  db eval {
+    CREATE TABLE t2(B BLOB);
+    INSERT INTO t2 VALUES(zeroblob(10 * 1024 * 1024)); 
+  }
+  expr {[sqlite3_memory_highwater]<(5 * 1024 * 1024)}
+} {1}
+
+do_test incrblob2-7.2 {
+  set h [db incrblob t2 B 1]
+  expr {[sqlite3_memory_highwater]<(5 * 1024 * 1024)}
+} {1}
+
+do_test incrblob2-7.3 {
+  seek $h 0 end
+  tell $h
+} [expr 10 * 1024 * 1024]
+
+do_test incrblob2-7.4 {
+  expr {[sqlite3_memory_highwater]<(5 * 1024 * 1024)}
+} {1}
+
+do_test incrblob2-7.5 {
+  close $h
+} {}
+
+#---------------------------------------------------------------------------
+# The following tests, incrblob2-8.*, test that nothing terrible happens
+# when a statement transaction is rolled back while there are open 
+# incremental-blob handles. At one point an assert() was failing when
+# this was attempted.
+#
+do_test incrblob2-8.1 {
+  execsql BEGIN
+  set h [db incrblob t2 B 1]
+  set rc [catch {
+    db eval {SELECT rowid FROM t2} { execsql "DROP TABLE t2" }
+  } msg] 
+  list $rc $msg
+} {1 {database table is locked}}
+do_test incrblob2-8.2 {
+  close $h
+  execsql COMMIT
+} {}
+do_test incrblob2-8.3 {
+  execsql {
+    CREATE TABLE t3(a INTEGER UNIQUE, b TEXT);
+    INSERT INTO t3 VALUES(1, 'aaaaaaaaaaaaaaaaaaaa');
+    INSERT INTO t3 VALUES(2, 'bbbbbbbbbbbbbbbbbbbb');
+    INSERT INTO t3 VALUES(3, 'cccccccccccccccccccc');
+    INSERT INTO t3 VALUES(4, 'dddddddddddddddddddd');
+    INSERT INTO t3 VALUES(5, 'eeeeeeeeeeeeeeeeeeee');
+  }
+} {}
+do_test incrblob2-8.4 {
+  execsql BEGIN
+  set h [db incrblob t3 b 3]
+  sqlite3_blob_read $h 0 20
+} {cccccccccccccccccccc}
+do_test incrblob2-8.5 {
+  catchsql {UPDATE t3 SET a = 6 WHERE a > 3}
+} {1 {UNIQUE constraint failed: t3.a}}
+do_test incrblob2-8.6 {
+  catchsql {UPDATE t3 SET a = 6 WHERE a > 3}
+} {1 {UNIQUE constraint failed: t3.a}}
+do_test incrblob2-8.7 {
+  sqlite3_blob_read $h 0 20
+} {cccccccccccccccccccc}
+do_test incrblob2-8.8 {
+  catchsql {UPDATE t3 SET a = 6 WHERE a = 3 OR a = 5}
+} {1 {UNIQUE constraint failed: t3.a}}
+do_test incrblob2-8.9 {
+  set rc [catch {sqlite3_blob_read $h 0 20} msg]
+  list $rc $msg
+} {1 SQLITE_ABORT}
+do_test incrblob2-8.X {
+  close $h
+} {}
+
+finish_test
diff --git a/test/incrblob3.test b/test/incrblob3.test
new file mode 100644
index 0000000000000000000000000000000000000000..a9097e01a5cd490ac2eef3ebd6d2603193be97db
--- /dev/null
+++ b/test/incrblob3.test
@@ -0,0 +1,314 @@
+# 2010 October 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix incrblob3
+
+ifcapable !incrblob {
+  finish_test
+  return
+}
+
+sqlite3 db test.db
+sqlite3_db_config_lookaside db 0 0 0
+
+do_execsql_test incrblob3-1.1 {
+  CREATE TABLE blobs(k INTEGER PRIMARY KEY, v BLOB);
+  INSERT INTO blobs VALUES(1, zeroblob(100));
+  INSERT INTO blobs VALUES(2, zeroblob(100));
+} {}
+
+# Test the sqlite3_blob_reopen()/read()/write() functions.
+#
+do_test incrblob3-1.2 {
+  set ::blob [db incrblob blobs v 1]
+  puts $::blob "hello world"
+} {}
+
+do_test incrblob3-1.3 {
+  sqlite3_blob_reopen $::blob 2
+  puts $::blob "world hello"
+} {}
+
+do_test incrblob3-1.4 {
+  sqlite3_blob_reopen $::blob 1
+  gets $::blob
+} {hello world}
+
+do_test incrblob3-1.5 {
+  sqlite3_blob_reopen $::blob 2
+  gets $::blob
+} {world hello}
+
+do_test incrblob3-1.6 { close $::blob } {}
+
+# Test some error conditions.
+#
+#   incrblob3-2.1: Attempting to reopen a row that does not exist.
+#   incrblob3-2.2: Attempting to reopen a row that does not contain a blob
+#                  or text value.
+#
+do_test incrblob3-2.1.1 {
+  set ::blob [db incrblob blobs v 1]
+  list [catch {sqlite3_blob_reopen $::blob 3} msg] $msg
+} {1 SQLITE_ERROR}
+do_test incrblob3-2.1.2 {
+  list [sqlite3_errcode db] [sqlite3_errmsg db]
+} {SQLITE_ERROR {no such rowid: 3}}
+do_test incrblob3-2.1.3 {
+  list [catch {sqlite3_blob_reopen $::blob 1} msg] $msg
+} {1 SQLITE_ABORT}
+do_test incrblob3-2.1.4 { close $::blob } {}
+
+do_execsql_test incrblob3-2.2.1 {
+  INSERT INTO blobs VALUES(3, 42);
+  INSERT INTO blobs VALUES(4, 54.4);
+  INSERT INTO blobs VALUES(5, NULL);
+}
+foreach {tn rowid type} {
+  1 3 integer
+  2 4 real
+  3 5 null
+} {
+  do_test incrblob3-2.2.$tn.1 {
+    set ::blob [db incrblob blobs v 1]
+    list [catch {sqlite3_blob_reopen $::blob $rowid} msg] $msg
+  } {1 SQLITE_ERROR}
+  do_test incrblob3-2.2.$tn.2 {
+    list [sqlite3_errcode db] [sqlite3_errmsg db]
+  } "SQLITE_ERROR {cannot open value of type $type}"
+
+  do_test incrblob3-2.2.$tn.3 {
+    list [catch {sqlite3_blob_reopen $::blob 1} msg] $msg
+  } {1 SQLITE_ABORT}
+  do_test incrblob3-2.2.$tn.4 {
+    list [catch {sqlite3_blob_read $::blob 0 10} msg] $msg
+  } {1 SQLITE_ABORT}
+  do_test incrblob3-2.2.$tn.5 {
+    list [catch {sqlite3_blob_write $::blob 0 "abcd"} msg] $msg
+  } {1 SQLITE_ABORT}
+  do_test incrblob3-2.2.$tn.6 {
+    sqlite3_blob_bytes $::blob
+  } {0}
+
+  do_test incrblob3-2.2.$tn.7 { close $::blob } {}
+}
+
+# Test that passing NULL to sqlite3_blob_XXX() APIs returns SQLITE_MISUSE.
+#
+#   incrblob3-3.1: sqlite3_blob_reopen()
+#   incrblob3-3.2: sqlite3_blob_read()
+#   incrblob3-3.3: sqlite3_blob_write()
+#   incrblob3-3.4: sqlite3_blob_bytes()
+#
+do_test incrblob3-3.1 {
+  list [catch {sqlite3_blob_reopen {} 3} msg] $msg
+} {1 SQLITE_MISUSE}
+
+do_test incrblob3-3.2 {
+  list [catch {sqlite3_blob_read {} 0 10} msg] $msg
+} {1 SQLITE_MISUSE}
+
+do_test incrblob3-3.3 {
+  list [catch {sqlite3_blob_write {} 0 "abcd"} msg] $msg
+} {1 SQLITE_MISUSE}
+
+do_test incrblob3-3.4 { sqlite3_blob_bytes {} } {0}
+
+do_test incrblob3-3.5 { sqlite3_blob_close {} } {}
+
+# Test out-of-range reading and writing
+#
+do_test incrblob3-4.1 {
+  set ::blob [db incrblob blobs v 1]
+  sqlite3_blob_bytes $::blob
+} {100}
+do_test incrblob3-4.2 {
+  list [catch { sqlite3_blob_read $::blob -1 10 } msg] $msg
+} {1 SQLITE_ERROR}
+do_test incrblob3-4.3 {
+  list [catch { sqlite3_blob_read $::blob 0 -10 } msg] $msg
+} {1 SQLITE_ERROR}
+do_test incrblob3-4.4 {
+  list [catch { sqlite3_blob_read $::blob 95 10 } msg] $msg
+} {1 SQLITE_ERROR}
+do_test incrblob3-4.5 {
+  list [catch { sqlite3_blob_write $::blob -1 "abcdefghij" 10 } msg] $msg
+} {1 SQLITE_ERROR}
+do_test incrblob3-4.6 {
+  list [catch { sqlite3_blob_write $::blob 0 "abcdefghij" -10 } msg] $msg
+} {1 SQLITE_ERROR}
+do_test incrblob3-4.7 {
+  list [catch { sqlite3_blob_write $::blob 95 "abcdefghij" } msg] $msg
+} {1 SQLITE_ERROR}
+
+do_test incrblob3-4.8 { close $::blob } {}
+
+# Test that modifying the row a blob handle points to aborts the blob.
+#
+do_test incrblob3-5.1 {
+  set ::blob [db incrblob blobs v 1]
+  sqlite3_blob_bytes $::blob
+} {100}
+do_test incrblob3-5.2 {
+  execsql { UPDATE blobs SET v = '123456789012345678901234567890' WHERE k = 1 }
+  list [catch { sqlite3_blob_read $::blob 0 10 } msg] $msg
+} {1 SQLITE_ABORT}
+
+# Test various errors that can occur in sqlite3_blob_open():
+#
+#   1. Trying to open a virtual table column.
+#   2. Trying to open a view column.
+#   3. Trying to open a column that does not exist.
+#   4. Trying to open a read/write handle on an indexed column.
+#   5. Trying to open a read/write handle on the child key of an FK constraint.
+#
+ifcapable fts3 {
+  do_test incrblob3-6.1 {
+    execsql {
+      CREATE VIRTUAL TABLE ft USING fts3;
+      INSERT INTO ft VALUES('rules to open a column to which');
+    }
+
+    list [catch { db incrblob ft content 1 } msg] $msg
+  } {1 {cannot open virtual table: ft}}
+}
+ifcapable view {
+  do_test incrblob3-6.2 {
+    execsql { CREATE VIEW v1 AS SELECT * FROM blobs }
+    list [catch { db incrblob v1 content 1 } msg] $msg
+  } {1 {cannot open view: v1}}
+}
+
+do_test incrblob3-6.3 {
+  list [catch { db incrblob blobs content 1 } msg] $msg
+} {1 {no such column: "content"}}
+
+do_test incrblob3-6.4.1 {
+  execsql { 
+    CREATE TABLE t1(a, b);
+    CREATE INDEX i1 ON t1(b);
+    INSERT INTO t1 VALUES(zeroblob(100), zeroblob(100));
+  }
+  list [catch { db incrblob t1 b 1 } msg] $msg
+} {1 {cannot open indexed column for writing}}
+do_test incrblob3-6.4.2 {
+  set ::blob [db incrblob t1 a 1]
+  close $::blob
+} {}
+do_test incrblob3-6.4.3 {
+  set ::blob [db incrblob -readonly t1 b 1]
+  close $::blob
+} {}
+
+do_test incrblob3-6.5.1 {
+  execsql { 
+    CREATE TABLE p1(a PRIMARY KEY);
+    CREATE TABLE c1(a, b REFERENCES p1);
+    PRAGMA foreign_keys = 1;
+    INSERT INTO p1 VALUES(zeroblob(100));
+    INSERT INTO c1 VALUES(zeroblob(100), zeroblob(100));
+  }
+  list [catch { db incrblob c1 b 1 } msg] $msg
+} {1 {cannot open foreign key column for writing}}
+
+do_test incrblob3-6.5.2 {
+  set ::blob [db incrblob c1 a 1]
+  close $::blob
+} {}
+do_test incrblob3-6.5.3 {
+  set ::blob [db incrblob -readonly c1 b 1]
+  close $::blob
+} {}
+do_test incrblob3-6.5.4 {
+  execsql { PRAGMA foreign_keys = 0 }
+  set ::blob [db incrblob c1 b 1]
+  close $::blob
+} {}
+
+
+# Test that sqlite3_blob_open() handles transient and persistent schema 
+# errors correctly.
+#
+do_test incrblob3-7.1 {
+  sqlite3 db2 test.db
+  sqlite3_db_config_lookaside db2 0 0 0
+  execsql { CREATE TABLE t2(x) } db2
+  set ::blob [db incrblob blobs v 1]
+  close $::blob
+} {}
+db2 close
+
+testvfs tvfs -default 1
+tvfs filter xAccess
+tvfs script access_method
+
+proc access_method {args} {
+  set schemacookie [hexio_get_int [hexio_read test.db 40 4]]
+  incr schemacookie
+  hexio_write test.db 40 [hexio_render_int32 $schemacookie]
+
+  set dbversion [hexio_get_int [hexio_read test.db 24 4]]
+  incr dbversion
+  hexio_write test.db 24 [hexio_render_int32 $dbversion]
+
+  return ""
+}
+
+do_test incrblob3-7.2 {
+  sqlite3 db test.db 
+  sqlite3_db_config_lookaside db 0 0 0
+  list [catch {db incrblob blobs v 1} msg] $msg
+} {1 {database schema has changed}}
+db close
+tvfs delete
+
+#-------------------------------------------------------------------------
+#
+reset_db
+forcedelete test.db2
+do_execsql_test 8.1 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+  ATTACH 'test.db2' AS aux;
+  CREATE TABLE aux.t1(a INTEGER PRIMARY KEY, b);
+
+  INSERT INTO t1 VALUES(4, 'hello');
+  INSERT INTO aux.t1 VALUES(4, 'world');
+}
+
+do_test 8.2 {
+  set ::blob [db incrblob -readonly main t1 b 4]
+  read $::blob
+} {hello}
+close $::blob
+
+do_test 8.3 {
+  set ::blob [db incrblob -readonly aux t1 b 4]
+  read $::blob
+} {world}
+close $::blob
+
+do_test 8.4 {
+  set ::blob [db incrblob -readonly t1 b 4]
+  read $::blob
+} {hello}
+close $::blob
+
+do_test 8.5 {
+  list [catch { db incrblob -readonly nosuchdb t1 b 4 } msg] $msg
+} {1 {no such table: nosuchdb.t1}}
+
+
+db close
+finish_test
diff --git a/test/incrblob4.test b/test/incrblob4.test
new file mode 100644
index 0000000000000000000000000000000000000000..dbff8eb7d58c74eed3dfb3543affae11e2330983
--- /dev/null
+++ b/test/incrblob4.test
@@ -0,0 +1,109 @@
+# 2012 March 23
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+#
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable {!incrblob} { finish_test ; return }
+set testprefix incrblob4
+
+proc create_t1 {} {
+  execsql {
+    PRAGMA page_size = 1024;
+    CREATE TABLE t1(k INTEGER PRIMARY KEY, v);
+  }
+}
+
+proc populate_t1 {} {
+  set data [list a b c d e f g h i j k l m n o p q r s t u v w x y z]
+  foreach d $data {
+    set blob [string repeat $d 900]
+    execsql { INSERT INTO t1(v) VALUES($blob) }
+  }
+}
+
+
+do_test 1.1 { 
+  create_t1
+  populate_t1 
+} {}
+
+do_test 1.2 {
+  set blob [db incrblob t1 v 5]
+  read $blob 10
+} {eeeeeeeeee}
+
+do_test 1.3 {
+  execsql { DELETE FROM t1 }
+  populate_t1
+} {}
+
+
+
+do_test 2.1 { 
+  reset_db
+  create_t1
+  populate_t1 
+} {}
+
+do_test 2.2 {
+  set blob [db incrblob t1 v 10]
+  read $blob 10
+} {jjjjjjjjjj}
+
+do_test 2.3 {
+  set new [string repeat % 900]
+  execsql { DELETE FROM t1 WHERE k=10 }
+  execsql { DELETE FROM t1 WHERE k=9 }
+  execsql { INSERT INTO t1(v) VALUES($new) }
+} {}
+
+
+
+do_test 3.1 {
+  reset_db
+  create_t1
+  populate_t1 
+} {}
+
+do_test 3.2 {
+  set blob [db incrblob t1 v 20]
+  read $blob 10
+} {tttttttttt}
+
+do_test 3.3 {
+  set new [string repeat % 900]
+  execsql { UPDATE t1 SET v = $new WHERE k = 20 }
+  execsql { DELETE FROM t1 WHERE k=19 }
+  execsql { INSERT INTO t1(v) VALUES($new) }
+} {}
+
+#-------------------------------------------------------------------------
+# Test that it is not possible to DROP a table with an incremental blob
+# cursor open on it.
+#
+do_execsql_test 4.1 {
+  CREATE TABLE t2(a INTEGER PRIMARY KEY, b);
+  INSERT INTO t2 VALUES(456, '0123456789');
+}
+do_test 4.2 {
+  set blob [db incrblob -readonly t2 b 456]
+  read $blob 5
+} {01234}
+do_catchsql_test 4.3 {
+  DROP TABLE t2
+} {1 {database table is locked}}
+do_test 4.4 {
+  sqlite3_extended_errcode db
+} {SQLITE_LOCKED}
+close $blob
+
+finish_test
diff --git a/test/incrblob_err.test b/test/incrblob_err.test
new file mode 100644
index 0000000000000000000000000000000000000000..3c523319c20e286a07930cfc031bbbde36801368
--- /dev/null
+++ b/test/incrblob_err.test
@@ -0,0 +1,140 @@
+# 2007 May 1
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# $Id: incrblob_err.test,v 1.14 2008/07/18 17:16:27 drh Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix incrblob_err
+
+ifcapable {!incrblob  || !tclvar} {
+  finish_test
+  return
+}
+
+source $testdir/malloc_common.tcl
+
+unset -nocomplain ::fd ::data
+set ::fd [open $::cmdlinearg(INFO_SCRIPT)]
+set ::data [read $::fd]
+close $::fd
+
+do_malloc_test 1 -tclprep {
+  set bytes [file size $::cmdlinearg(INFO_SCRIPT)]
+  execsql {
+    CREATE TABLE blobs(k, v BLOB);
+    INSERT INTO blobs VALUES(1, zeroblob($::bytes));
+  }
+} -tclbody {
+  set ::blob [db incrblob blobs v 1]
+  fconfigure $::blob -translation binary
+  set rc [catch {puts -nonewline $::blob $::data}]
+  if {$rc} { error "out of memory" }
+} 
+
+do_malloc_test 2 -tclprep {
+  execsql {
+    CREATE TABLE blobs(k, v BLOB);
+    INSERT INTO blobs VALUES(1, $::data);
+  }
+} -tclbody {
+  set ::blob [db incrblob blobs v 1]
+  set rc [catch {set ::r [read $::blob]}]
+  if {$rc} { 
+    error "out of memory" 
+  } elseif {$::r ne $::data} {
+    error "Bad data read..."
+  }
+}
+
+do_malloc_test 3 -tclprep {
+  execsql {
+    CREATE TABLE blobs(k, v BLOB);
+    INSERT INTO blobs VALUES(1, $::data);
+  }
+} -tclbody {
+  set ::blob [db incrblob blobs v 1]
+  set rc [catch {set ::r [read $::blob]}]
+  if {$rc} { 
+    error "out of memory" 
+  } elseif {$::r ne $::data} {
+    error "Bad data read..."
+  }
+  set rc [catch {close $::blob}]
+  if {$rc} { 
+    error "out of memory" 
+  }
+}
+
+do_ioerr_test incrblob_err-4 -cksum 1 -sqlprep {
+  CREATE TABLE blobs(k, v BLOB);
+  INSERT INTO blobs VALUES(1, $::data);
+} -tclbody {
+  set ::blob [db incrblob blobs v 1]
+  read $::blob
+}
+
+do_ioerr_test incrblob_err-5 -cksum 1 -sqlprep {
+  CREATE TABLE blobs(k, v BLOB);
+  INSERT INTO blobs VALUES(1, zeroblob(length(CAST($::data AS BLOB))));
+} -tclbody {
+  set ::blob [db incrblob blobs v 1]
+  fconfigure $::blob -translation binary
+  puts -nonewline $::blob $::data
+  close $::blob
+}
+
+do_ioerr_test incrblob_err-6 -cksum 1 -sqlprep {
+  CREATE TABLE blobs(k, v BLOB);
+  INSERT INTO blobs VALUES(1, $::data || $::data || $::data);
+} -tclbody {
+  set ::blob [db incrblob blobs v 1]
+  fconfigure $::blob -translation binary
+  seek $::blob -20 end
+  puts -nonewline $::blob "12345678900987654321"
+  close $::blob
+}
+
+do_ioerr_test incrblob_err-7 -cksum 1 -sqlprep {
+  PRAGMA auto_vacuum = 1;
+  CREATE TABLE blobs(k INTEGER PRIMARY KEY, v BLOB);
+  INSERT INTO blobs VALUES(1, zeroblob(500 * 1020));
+} -tclbody {
+  # Read some data from the end of the large blob inserted into table 
+  # "blobs". This forces the IO error to occur while reading a pointer
+  # map page for the purposes of seeking to the end of the blob.
+  #
+  sqlite3 db2 test.db
+  set ::blob [db2 incrblob blobs v 1]
+  sqlite3_blob_read $::blob [expr 500*1020-20] 20
+  close $::blob
+}
+catch {db2 close}
+
+do_ioerr_test incrblob_err-8 -cksum 1 -sqlprep {
+  PRAGMA auto_vacuum = 1;
+  CREATE TABLE blobs(k INTEGER PRIMARY KEY, v BLOB);
+  INSERT INTO blobs VALUES(1, zeroblob(500 * 1020));
+} -tclbody {
+  # Read some data from the end of the large blob inserted into table 
+  # "blobs". This forces the IO error to occur while reading a pointer
+  # map page for the purposes of seeking to the end of the blob.
+  #
+  sqlite3 db2 test.db
+  set ::blob [db2 incrblob blobs v 1]
+  sqlite3_blob_write $::blob [expr 500*1020-20] 12345678900987654321
+  close $::blob
+}
+
+catch {db2 close}
+
+finish_test
diff --git a/test/incrblobfault.test b/test/incrblobfault.test
new file mode 100644
index 0000000000000000000000000000000000000000..d070babe2cb98bd3c6f8969abf8825dfd430925f
--- /dev/null
+++ b/test/incrblobfault.test
@@ -0,0 +1,74 @@
+# 2010 October 26
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !incrblob {
+  finish_test
+  return
+}
+
+set testprefix incrblobfault
+
+do_execsql_test 1.0 {
+  CREATE TABLE blob(x INTEGER PRIMARY KEY, v BLOB);
+  INSERT INTO blob VALUES(1, 'hello world');
+  INSERT INTO blob VALUES(2, 'world hello');
+  INSERT INTO blob SELECT NULL, v FROM blob;
+  INSERT INTO blob SELECT NULL, v FROM blob;
+  INSERT INTO blob SELECT NULL, v FROM blob;
+  INSERT INTO blob SELECT NULL, v FROM blob;
+  INSERT INTO blob SELECT NULL, v FROM blob;
+  INSERT INTO blob SELECT NULL, v FROM blob;
+  INSERT INTO blob SELECT NULL, v FROM blob;
+  INSERT INTO blob SELECT NULL, v FROM blob;
+  INSERT INTO blob SELECT NULL, v FROM blob;
+  INSERT INTO blob SELECT NULL, v FROM blob;
+}
+
+do_faultsim_test 1 -prep {
+  sqlite3 db test.db
+  set ::blob [db incrblob blob v 1]
+} -body {
+  if {[catch {sqlite3_blob_reopen $::blob 1000}]} {
+    error [sqlite3_errmsg db]
+  }
+} -test {
+  faultsim_test_result {0 {}}
+  close $::blob
+}
+
+do_faultsim_test 2 -prep {
+  sqlite3 db test.db
+  set ::blob [db incrblob blob v 1]
+} -body {
+  if {[catch {sqlite3_blob_reopen $::blob -1}]} {
+    error [sqlite3_errmsg db]
+  }
+} -test {
+  faultsim_test_result {1 {no such rowid: -1}} {1 {disk I/O error}}
+  close $::blob
+}
+
+do_faultsim_test 3 -prep {
+  sqlite3 db test.db
+} -body {
+  set ::blob [db incrblob blob v 1]
+  gets $::blob
+} -test {
+  faultsim_test_result {0 {hello world}}
+  catch { close $::blob }
+}
+
+finish_test
diff --git a/test/incrcorrupt.test b/test/incrcorrupt.test
new file mode 100644
index 0000000000000000000000000000000000000000..2ea68c8c7ca113025e6ed0d7a54b6817cacc9b55
--- /dev/null
+++ b/test/incrcorrupt.test
@@ -0,0 +1,126 @@
+# 2001 October 12
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# Test that "PRAGMA incremental_vacuum" detects and reports database
+# corruption properly. And that "PRAGMA auto_vacuum = INCREMENTAL"
+# does as well.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix incrcorrupt
+
+# If this build of the library does not support auto-vacuum, omit this
+# whole file.
+ifcapable {!autovacuum} {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  PRAGMA auto_vacuum = 2;
+  CREATE TABLE t1(a PRIMARY KEY, b);
+
+  WITH data(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM data
+  )
+  INSERT INTO t1 SELECT i, randomblob(600) FROM data LIMIT 20;
+  PRAGMA page_count;
+} {24}
+
+do_execsql_test 1.1 {
+  PRAGMA incremental_vacuum;
+} {}
+
+do_test 1.2 {
+  db_save
+  hexio_write test.db 36 00000019
+  catchsql { PRAGMA incremental_vacuum; }
+} {1 {database disk image is malformed}}
+
+do_test 1.3 {
+  set stmt [sqlite3_prepare_v2 db "PRAGMA incremental_vacuum" -1 dummy]
+  sqlite3_step $stmt
+} {SQLITE_CORRUPT}
+do_test 1.4 { sqlite3_errcode db } {SQLITE_CORRUPT}
+do_test 1.5 { sqlite3_errmsg db } {database disk image is malformed}
+do_test 1.6 { sqlite3_finalize $stmt } {SQLITE_CORRUPT}
+do_test 1.7 { sqlite3_errcode db } {SQLITE_CORRUPT}
+do_test 1.8 { sqlite3_errmsg db } {database disk image is malformed}
+
+do_test 1.9 {
+  set stmt [sqlite3_prepare_v2 db "PRAGMA incremental_vacuum" -1 dummy]
+  sqlite3_step $stmt
+} {SQLITE_CORRUPT}
+do_test 1.10 { sqlite3_errcode db } {SQLITE_CORRUPT}
+do_test 1.11 { sqlite3_errmsg db } {database disk image is malformed}
+
+do_test 1.12 {
+  set stmt2 [sqlite3_prepare_v2 db "SELECT 1" -1 dummy]
+  sqlite3_finalize $stmt2
+} {SQLITE_OK}
+do_test 1.13 { sqlite3_errcode db } {SQLITE_OK}
+do_test 1.14 { sqlite3_errmsg db } {not an error}
+
+do_test 1.15 { sqlite3_finalize $stmt } {SQLITE_CORRUPT}
+do_test 1.16 { sqlite3_errcode db } {SQLITE_CORRUPT}
+do_test 1.17 { sqlite3_errmsg db } {database disk image is malformed}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+
+do_execsql_test 2.1 {
+  PRAGMA auto_vacuum = 1;
+  CREATE TABLE t1(a PRIMARY KEY, b);
+  WITH data(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM data
+  )
+  INSERT INTO t1 SELECT i, randomblob(600) FROM data LIMIT 20;
+  PRAGMA page_count;
+} {24}
+
+do_test 2.2 {
+  db_save
+  set fd [open test.db r+]
+  chan truncate $fd [expr 22*1024]
+  close $fd
+  catchsql { PRAGMA incremental_vacuum; }
+} {1 {database disk image is malformed}}
+
+do_test 2.3 {
+  set stmt [sqlite3_prepare_v2 db "PRAGMA auto_vacuum = INCREMENTAL" -1 dummy]
+  sqlite3_step $stmt
+} {SQLITE_CORRUPT}
+do_test 2.4 { sqlite3_errcode db } {SQLITE_CORRUPT}
+do_test 2.5 { sqlite3_errmsg db } {database disk image is malformed}
+do_test 2.6 { sqlite3_finalize $stmt } {SQLITE_CORRUPT}
+do_test 2.7 { sqlite3_errcode db } {SQLITE_CORRUPT}
+do_test 2.8 { sqlite3_errmsg db } {database disk image is malformed}
+
+do_test 2.9 {
+  set stmt [sqlite3_prepare_v2 db "PRAGMA auto_vacuum = INCREMENTAL" -1 dummy]
+  sqlite3_step $stmt
+} {SQLITE_CORRUPT}
+do_test 2.10 { sqlite3_errcode db } {SQLITE_CORRUPT}
+do_test 2.11 { sqlite3_errmsg db } {database disk image is malformed}
+
+do_test 2.12 {
+  set stmt2 [sqlite3_prepare_v2 db "SELECT 1" -1 dummy]
+  sqlite3_finalize $stmt2
+} {SQLITE_OK}
+do_test 2.13 { sqlite3_errcode db } {SQLITE_OK}
+do_test 2.14 { sqlite3_errmsg db } {not an error}
+
+do_test 2.15 { sqlite3_finalize $stmt } {SQLITE_CORRUPT}
+do_test 2.16 { sqlite3_errcode db } {SQLITE_CORRUPT}
+do_test 2.17 { sqlite3_errmsg db } {database disk image is malformed}
+
+finish_test
diff --git a/test/incrvacuum.test b/test/incrvacuum.test
new file mode 100644
index 0000000000000000000000000000000000000000..d06005c1f66df7cc9504a33e550bd77796f492dc
--- /dev/null
+++ b/test/incrvacuum.test
@@ -0,0 +1,892 @@
+# 2007 April 26
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the incremental vacuum feature.
+#
+# Note: There are also some tests for incremental vacuum and IO 
+# errors in incrvacuum_ioerr.test.
+#
+# $Id: incrvacuum.test,v 1.23 2009/02/18 20:31:18 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If this build of the library does not support auto-vacuum, omit this
+# whole file.
+ifcapable {!autovacuum || !pragma} {
+  finish_test
+  return
+}
+
+#---------------------------------------------------------------------
+# Test the pragma on an empty database.
+#
+do_test incrvacuum-1.1 {
+  execsql {
+    pragma auto_vacuum;
+  }
+} $sqlite_options(default_autovacuum)
+do_test incrvacuum-1.2.0 {
+  # File size is sometimes 1 instead of 0 due to the hack we put in
+  # to work around ticket #3260.  Search for comments on #3260 in
+  # os_unix.c.
+  expr {[file size test.db] > 1}
+} {0}
+do_test incrvacuum-1.2 {
+  # This command will create the database.
+  execsql {
+    pragma auto_vacuum = 'full';
+    pragma auto_vacuum;
+  }
+} {1}
+do_test incrvacuum-1.2.1 {
+  expr {[file size test.db] > 0}
+} {1}
+do_test incrvacuum-1.3 {
+  execsql {
+    pragma auto_vacuum = 'incremental';
+    pragma auto_vacuum;
+  }
+} {2}
+do_test incrvacuum-1.4 {
+  # In this case the invalid value is ignored and the auto_vacuum
+  # setting remains unchanged.
+  execsql {
+    pragma auto_vacuum = 'invalid';
+    pragma auto_vacuum;
+  }
+} {2}
+do_test incrvacuum-1.5 {
+  execsql {
+    pragma auto_vacuum = 1;
+    pragma auto_vacuum;
+  }
+} {1}
+do_test incrvacuum-1.6 {
+  execsql {
+    pragma auto_vacuum = '2';
+    pragma auto_vacuum;
+  }
+} {2}
+do_test incrvacuum-1.7 {
+  # Invalid value. auto_vacuum setting remains unchanged.
+  execsql {
+    pragma auto_vacuum = 5;
+    pragma auto_vacuum;
+  }
+} {2}
+
+#---------------------------------------------------------------------
+# Test the pragma on a non-empty database. It is possible to toggle
+# the connection between "full" and "incremental" mode, but not to
+# change from either of these to "none", or from "none" to "full" or
+# "incremental".
+#
+do_test incrvacuum-2.1 {
+  execsql {
+    pragma auto_vacuum = 1;
+    CREATE TABLE abc(a, b, c);
+  }
+} {}
+do_test incrvacuum-2.2 {
+  execsql {
+    pragma auto_vacuum = 'none';
+    pragma auto_vacuum;
+  }
+} {1}
+do_test incrvacuum-2.2.1 {
+  db close
+  sqlite3 db test.db
+  execsql {
+    pragma auto_vacuum;
+  }
+} {1}
+do_test incrvacuum-2.3 {
+  execsql {
+    pragma auto_vacuum = 'incremental';
+    pragma auto_vacuum;
+  }
+} {2}
+do_test incrvacuum-2.4 {
+  execsql {
+    pragma auto_vacuum = 'full';
+    pragma auto_vacuum;
+  }
+} {1}
+
+#---------------------------------------------------------------------
+# Test that when the auto_vacuum mode is "incremental", the database
+# does not shrink when pages are removed from it. But it does if
+# the mode is set to "full".
+#
+do_test incrvacuum-3.1 {
+  execsql {
+    pragma auto_vacuum;
+  }
+} {1}
+do_test incrvacuum-3.2 {
+  set ::str [string repeat 1234567890 110]
+  execsql {
+    PRAGMA auto_vacuum = 2;
+    BEGIN;
+    CREATE TABLE tbl2(str);
+    INSERT INTO tbl2 VALUES($::str);
+    COMMIT;
+  }
+  # 5 pages:
+  #
+  #   1 -> database header
+  #   2 -> first back-pointer page
+  #   3 -> table abc
+  #   4 -> table tbl2
+  #   5 -> table tbl2 overflow page.
+  #
+  expr {[file size test.db] / 1024}
+} {5}
+do_test incrvacuum-3.3 {
+  execsql {
+    DROP TABLE abc;
+    DELETE FROM tbl2;
+  }
+  expr {[file size test.db] / 1024}
+} {5}
+do_test incrvacuum-3.4 {
+  execsql {
+    PRAGMA auto_vacuum = 1;
+    INSERT INTO tbl2 VALUES('hello world');
+  }
+  expr {[file size test.db] / 1024}
+} {3}
+
+#---------------------------------------------------------------------
+# Try to run a very simple incremental vacuum. Also verify that 
+# PRAGMA incremental_vacuum is a harmless no-op against a database that
+# does not support auto-vacuum.
+#
+do_test incrvacuum-4.1 {
+  set ::str [string repeat 1234567890 110]
+  execsql {
+    PRAGMA auto_vacuum = 2;
+    INSERT INTO tbl2 VALUES($::str);
+    CREATE TABLE tbl1(a, b, c);
+  }
+  expr {[file size test.db] / 1024}
+} {5}
+do_test incrvacuum-4.2 {
+  execsql {
+    DELETE FROM tbl2;
+    DROP TABLE tbl1;
+  }
+  expr {[file size test.db] / 1024}
+} {5}
+do_test incrvacuum-4.3 {
+  set ::nStep 0
+  db eval {pragma incremental_vacuum(10)} {
+    incr ::nStep
+  }
+  list [expr {[file size test.db] / 1024}] $::nStep
+} {3 2}
+
+#---------------------------------------------------------------------
+# The following tests - incrvacuum-5.* - test incremental vacuum
+# from within a transaction.
+#
+do_test incrvacuum-5.1.1 {
+  expr {[file size test.db] / 1024}
+} {3}
+do_test incrvacuum-5.1.2 {
+  execsql {
+    BEGIN;
+    DROP TABLE tbl2;
+    PRAGMA incremental_vacuum;
+    COMMIT;
+  }
+  expr {[file size test.db] / 1024}
+} {1}
+
+do_test incrvacuum-5.2.1 {
+  set ::str [string repeat abcdefghij 110]
+  execsql {
+    BEGIN;
+    CREATE TABLE tbl1(a);
+    INSERT INTO tbl1 VALUES($::str);
+    PRAGMA incremental_vacuum;                 -- this is a no-op.
+    COMMIT;
+  }
+  expr {[file size test.db] / 1024}
+} {4}
+do_test incrvacuum-5.2.2 {
+  set ::str [string repeat abcdefghij 110]
+  execsql {
+    BEGIN;
+    INSERT INTO tbl1 VALUES($::str);
+    INSERT INTO tbl1 SELECT * FROM tbl1;
+    DELETE FROM tbl1 WHERE oid%2;        -- Put 2 overflow pages on free-list.
+    COMMIT;
+  }
+  expr {[file size test.db] / 1024}
+} {7}
+do_test incrvacuum-5.2.3 {
+  execsql {
+    BEGIN;
+    PRAGMA incremental_vacuum;           -- Vacuum up the two pages.
+    CREATE TABLE tbl2(b);                -- Use one free page as a table root.
+    INSERT INTO tbl2 VALUES('a nice string');
+    COMMIT;
+  }
+  expr {[file size test.db] / 1024}
+} {6}
+do_test incrvacuum-5.2.4 {
+  execsql {
+    SELECT * FROM tbl2;
+  }
+} {{a nice string}}
+do_test incrvacuum-5.2.5 {
+  execsql {
+    DROP TABLE tbl1;
+    DROP TABLE tbl2;
+    PRAGMA incremental_vacuum;
+  }
+  expr {[file size test.db] / 1024}
+} {1}
+
+
+# Test cases incrvacuum-5.3.* use the following list as input data.
+# Two new databases are opened, one with incremental vacuum enabled,
+# the other with no auto-vacuum completely disabled. After executing
+# each element of the following list on both databases, test that
+# the integrity-check passes and the contents of each are identical.
+# 
+set TestScriptList [list {
+  BEGIN;
+  CREATE TABLE t1(a, b);
+  CREATE TABLE t2(a, b);
+  CREATE INDEX t1_i ON t1(a);
+  CREATE INDEX t2_i ON t2(a);
+} {
+  INSERT INTO t1 VALUES($::str1, $::str2);
+  INSERT INTO t1 VALUES($::str1||$::str2, $::str2||$::str1);
+  INSERT INTO t2 SELECT b, a FROM t1;
+  INSERT INTO t2 SELECT a, b FROM t1;
+  INSERT INTO t1 SELECT b, a FROM t2;
+  UPDATE t2 SET b = '';
+  PRAGMA incremental_vacuum;
+} {
+  UPDATE t2 SET b = (SELECT b FROM t1 WHERE t1.oid = t2.oid);
+  PRAGMA incremental_vacuum;
+} {
+  CREATE TABLE t3(a, b);
+  INSERT INTO t3 SELECT * FROM t2;
+  DROP TABLE t2;
+  PRAGMA incremental_vacuum;
+} {
+  CREATE INDEX t3_i ON t3(a);
+  COMMIT;
+} {
+  BEGIN;
+  DROP INDEX t3_i;
+  PRAGMA incremental_vacuum;
+  INSERT INTO t3 VALUES('hello', 'world');
+  ROLLBACK;
+} {
+  INSERT INTO t3 VALUES('hello', 'world');
+}
+]
+
+# If this build omits subqueries, step 2 in the above list will not
+# work. Replace it with "" in this case. 
+#
+ifcapable !subquery { lset TestScriptList 2 "" }
+
+# Compare the contents of databases $A and $B.
+#
+proc compare_dbs {A B tname} {
+  set tbl_list [execsql {
+    SELECT tbl_name FROM sqlite_master WHERE type = 'table'
+  } $A]
+
+  do_test ${tname}.1 [subst {
+    execsql {
+      SELECT tbl_name FROM sqlite_master WHERE type = 'table'
+    } $B
+  }] $tbl_list
+
+  set tn 1
+  foreach tbl $tbl_list {
+    set control [execsql "SELECT * FROM $tbl" $A]
+    do_test ${tname}.[incr tn] [subst {
+      execsql "SELECT * FROM $tbl" $B
+    }] $control
+  }
+}
+
+set ::str1 [string repeat abcdefghij 130]
+set ::str2 [string repeat 1234567890 105]
+
+forcedelete test1.db test1.db-journal test2.db test2.db-journal
+sqlite3 db1 test1.db
+sqlite3 db2 test2.db
+execsql { PRAGMA auto_vacuum = 'none' } db1
+execsql { PRAGMA auto_vacuum = 'incremental' } db2
+
+set tn 1
+foreach sql $::TestScriptList {
+  execsql $sql db1
+  execsql $sql db2
+
+  compare_dbs db1 db2 incrvacuum-5.3.${tn}
+  do_test incrvacuum-5.3.${tn}.integrity1 {
+    execsql { PRAGMA integrity_check; } db1
+  } {ok}
+  do_test incrvacuum-5.3.${tn}.integrity2 {
+    execsql { PRAGMA integrity_check; } db2
+  } {ok}
+  incr tn
+}
+db1 close
+db2 close
+#
+# End of test cases 5.3.*
+
+#---------------------------------------------------------------------
+# The following tests - incrvacuum-6.* - test running incremental 
+# vacuum while another statement (a read) is being executed.
+#
+for {set jj 0} {$jj < 10} {incr jj} {
+  # Build some test data. Two tables are created in an empty
+  # database. tbl1 data is a contiguous block starting at page 5 (pages
+  # 3 and 4 are the table roots). tbl2 is a contiguous block starting 
+  # right after tbl1.
+  #
+  # Then drop tbl1 so that when an incr vacuum is run the pages
+  # of tbl2 have to be moved to fill the gap.
+  #
+  do_test incrvacuum-6.${jj}.1 {
+    execsql {
+      DROP TABLE IF EXISTS tbl1;
+      DROP TABLE IF EXISTS tbl2;
+      PRAGMA incremental_vacuum;
+      CREATE TABLE tbl1(a, b);
+      CREATE TABLE tbl2(a, b);
+      BEGIN;
+    }
+    for {set ii 0} {$ii < 1000} {incr ii} {
+      db eval {INSERT INTO tbl1 VALUES($ii, $ii || $ii)}
+    }
+    execsql {
+      INSERT INTO tbl2 SELECT * FROM tbl1;
+      COMMIT;
+      DROP TABLE tbl1;
+    }
+    expr {[file size test.db] / 1024}
+  } {36}
+
+  # Run a linear scan query on tbl2. After reading ($jj*100) rows, 
+  # run the incremental vacuum to shrink the database.
+  #
+  do_test incrvacuum-6.${jj}.2 {
+    set ::nRow 0
+    db eval {SELECT a FROM tbl2} {} {
+      if {$a == [expr $jj*100]} {
+        db eval {PRAGMA incremental_vacuum}
+      }
+      incr ::nRow
+    }
+    list [expr {[file size test.db] / 1024}] $nRow
+  } {19 1000}
+}
+
+#---------------------------------------------------------------------
+# This test - incrvacuum-7.* - is to check that the database can be
+# written in the middle of an incremental vacuum.
+#
+set ::iWrite 1
+while 1 {
+  do_test incrvacuum-7.${::iWrite}.1 {
+    execsql {
+      DROP TABLE IF EXISTS tbl1;
+      DROP TABLE IF EXISTS tbl2;
+      PRAGMA incremental_vacuum;
+      CREATE TABLE tbl1(a, b);
+      CREATE TABLE tbl2(a, b);
+      BEGIN;
+    }
+    for {set ii 0} {$ii < 1000} {incr ii} {
+      db eval {INSERT INTO tbl1 VALUES($ii, $ii || $ii)}
+    }
+    execsql {
+      INSERT INTO tbl2 SELECT * FROM tbl1;
+      COMMIT;
+      DROP TABLE tbl1;
+    }
+    expr {[file size test.db] / 1024}
+  } {36}
+
+  do_test incrvacuum-7.${::iWrite}.2 {
+    set ::nRow 0
+    db eval {PRAGMA incremental_vacuum} {
+      incr ::nRow
+      if {$::nRow == $::iWrite} {
+        db eval {
+          CREATE TABLE tbl1(a, b);
+          INSERT INTO tbl1 VALUES('hello', 'world');
+        }
+      }
+    }
+    list [expr {[file size test.db] / 1024}]
+  } {20}
+
+  do_test incrvacuum-7.${::iWrite}.3 {
+    execsql {
+      SELECT * FROM tbl1;
+    }
+  } {hello world}
+
+  if {$::nRow == $::iWrite} break
+  incr ::iWrite
+}
+
+#---------------------------------------------------------------------
+# This test - incrvacuum-8.* - is to check that nothing goes wrong
+# with an incremental-vacuum if it is the first statement executed
+# after an existing database is opened.
+#
+# At one point, this would always return SQLITE_SCHEMA (which 
+# causes an infinite loop in tclsqlite.c if using the Tcl interface).
+#
+do_test incrvacuum-8.1 {
+  db close
+  sqlite3 db test.db
+  execsql {
+    PRAGMA incremental_vacuum(50);
+  }
+} {}
+
+#---------------------------------------------------------------------
+# At one point this test case was causing an assert() to fail.
+#
+do_test incrvacuum-9.1 {
+  db close
+  forcedelete test.db test.db-journal
+  sqlite3 db test.db
+
+  execsql {
+    PRAGMA auto_vacuum = 'incremental';
+    CREATE TABLE t1(a, b, c);
+    CREATE TABLE t2(a, b, c);
+    INSERT INTO t2 VALUES(randstr(500,500),randstr(500,500),randstr(500,500));
+    INSERT INTO t1 VALUES(1, 2, 3);
+    INSERT INTO t1 SELECT a||a, b||b, c||c FROM t1;
+    INSERT INTO t1 SELECT a||a, b||b, c||c FROM t1;
+    INSERT INTO t1 SELECT a||a, b||b, c||c FROM t1;
+    INSERT INTO t1 SELECT a||a, b||b, c||c FROM t1;
+    INSERT INTO t1 SELECT a||a, b||b, c||c FROM t1;
+    INSERT INTO t1 SELECT a||a, b||b, c||c FROM t1;
+    INSERT INTO t1 SELECT a||a, b||b, c||c FROM t1;
+    INSERT INTO t1 SELECT a||a, b||b, c||c FROM t1;
+  }
+} {}
+
+do_test incrvacuum-9.2 {
+  execsql {
+    PRAGMA synchronous = 'OFF';
+    BEGIN;
+    UPDATE t1 SET a = a, b = b, c = c;
+    DROP TABLE t2;
+    PRAGMA incremental_vacuum(10);
+    ROLLBACK;
+  }
+} {}
+
+do_test incrvacuum-9.3 {
+  execsql {
+    PRAGMA cache_size = 10;
+    BEGIN;
+    UPDATE t1 SET a = a, b = b, c = c;
+    DROP TABLE t2;
+    PRAGMA incremental_vacuum(10);
+    ROLLBACK;
+  }
+} {}
+
+#---------------------------------------------------------------------
+# Test that the parameter to the incremental_vacuum pragma works. That
+# is, if the user executes "PRAGMA incremental_vacuum(N)", at most
+# N pages are vacuumed.
+#
+do_test incrvacuum-10.1 {
+  execsql {
+    DROP TABLE t1;
+    DROP TABLE t2;
+  }
+  expr [file size test.db] / 1024
+} {29}
+
+do_test incrvacuum-10.2 {
+  execsql {
+    PRAGMA incremental_vacuum(1);
+  }
+  expr [file size test.db] / 1024
+} {28}
+
+do_test incrvacuum-10.3 {
+  execsql {
+    PRAGMA incremental_vacuum(5);
+  }
+  expr [file size test.db] / 1024
+} {23}
+
+do_test incrvacuum-10.4 {
+  execsql {
+    PRAGMA incremental_vacuum('1');
+  }
+  expr [file size test.db] / 1024
+} {22}
+
+do_test incrvacuum-10.5 {
+  execsql {
+    PRAGMA incremental_vacuum("+3");
+  }
+  expr [file size test.db] / 1024
+} {19}
+
+do_test incrvacuum-10.6 {
+  execsql {
+    PRAGMA incremental_vacuum = 1;
+  }
+  expr [file size test.db] / 1024
+} {18}
+
+do_test incrvacuum-10.7 {
+  # Use a really big number as an argument to incremetal_vacuum. Should
+  # be interpreted as "free all possible space".
+  execsql {
+    PRAGMA incremental_vacuum(2147483649);
+  }
+  expr [file size test.db] / 1024
+} {1}
+
+do_test incrvacuum-10.8 {
+  execsql {
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(hex(randomblob(1000)));
+    DROP TABLE t1;
+  }
+  # A negative number means free all possible space.
+  execsql {
+    PRAGMA incremental_vacuum=-1;
+  }
+  expr [file size test.db] / 1024
+} {1}
+
+#----------------------------------------------------------------
+# Test that if we set the auto_vacuum mode to 'incremental', then
+# create a database, thereafter that database defaults to incremental 
+# vacuum mode.
+#
+db close
+forcedelete test.db test.db-journal
+sqlite3 db test.db
+
+ifcapable default_autovacuum {
+  do_test incrvacuum-11.1-av-dflt-on {
+    execsql {
+      PRAGMA auto_vacuum;
+    }
+  } $AUTOVACUUM
+} else {
+  do_test incrvacuum-11.1-av-dflt-off {
+    execsql {
+      PRAGMA auto_vacuum;
+    }
+  } {0}
+}
+do_test incrvacuum-11.2 {
+  execsql {
+    PRAGMA auto_vacuum = incremental;
+  }
+} {}
+do_test incrvacuum-11.3 {
+  execsql {
+    PRAGMA auto_vacuum;
+  }
+} {2}
+do_test incrvacuum-11.4 {
+  # The database has now been created.
+  expr {[file size test.db]>0}
+} {1}
+do_test incrvacuum-11.5 {
+  # Close and reopen the connection.
+  db close
+  sqlite3 db test.db
+
+  # Test we are still in incremental vacuum mode.
+  execsql { PRAGMA auto_vacuum; }
+} {2}
+do_test incrvacuum-11.6 {
+  execsql {
+    PRAGMA auto_vacuum = 'full';
+    PRAGMA auto_vacuum;
+  }
+} {1}
+do_test incrvacuum-11.7 {
+  # Close and reopen the connection.
+  db close
+  sqlite3 db test.db
+
+  # Test we are still in "full" auto-vacuum mode.
+  execsql { PRAGMA auto_vacuum; }
+} {1}
+
+#----------------------------------------------------------------------
+# Special case: What happens if the database is locked when a "PRAGMA
+# auto_vacuum = XXX" statement is executed.
+#
+db close
+forcedelete test.db test.db-journal
+sqlite3 db test.db
+
+do_test incrvacuum-12.1 {
+  execsql {
+    PRAGMA auto_vacuum = 1;
+  }
+  expr {[file size test.db]>0}
+} {1}
+
+# Try to change the auto-vacuum from "full" to "incremental" while the
+# database is locked. Nothing should change.
+#
+do_test incrvacuum-12.2 {
+  sqlite3 db2 test.db
+  execsql { BEGIN EXCLUSIVE; } db2
+  catchsql { PRAGMA auto_vacuum = 2; }
+} {1 {database is locked}}
+
+do_test incrvacuum-12.3 {
+  execsql { ROLLBACK; } db2
+  execsql { PRAGMA auto_vacuum }
+} {2}   ;# Still 2 because PRAGMA auto_vacuum setting held in case of vacuum
+do_test incrvacuum-12.4 {
+  db close
+  sqlite3 db test.db
+  execsql { PRAGMA auto_vacuum }
+} {1}   ;# Revert to 1 because the database file did not change
+
+do_test incrvacuum-12.5 {
+  execsql { SELECT * FROM sqlite_master }
+  execsql { PRAGMA auto_vacuum }
+} {1}
+
+#----------------------------------------------------------------------
+# Special case #2: What if one process prepares a "PRAGMA auto_vacuum = XXX"
+# statement when the database is empty, but doesn't execute it until
+# after some other process has created the database.
+#
+db2 close
+db close
+forcedelete test.db test.db-journal
+sqlite3 db test.db  ;  set ::DB [sqlite3_connection_pointer db]
+sqlite3 db2 test.db
+
+do_test incrvacuum-13.1 {
+  # File size is sometimes 1 instead of 0 due to the hack we put in
+  # to work around ticket #3260.  Search for comments on #3260 in
+  # os_unix.c.
+  expr {[file size test.db]>1}
+} {0}
+do_test incrvacuum-13.2 {
+  set ::STMT [sqlite3_prepare $::DB {PRAGMA auto_vacuum = 2} -1 DUMMY]
+  execsql {
+    PRAGMA auto_vacuum = none;
+    PRAGMA default_cache_size = 1024;
+    PRAGMA auto_vacuum;
+  } db2
+} {0}
+do_test incrvacuum-13.3 {
+  expr {[file size test.db]>0}
+} {1}
+do_test incrvacuum-13.4 {
+  set rc [sqlite3_step $::STMT]
+  list $rc [sqlite3_finalize $::STMT]
+} {SQLITE_DONE SQLITE_OK}
+do_test incrvacuum-13.5 {
+  execsql {
+    PRAGMA auto_vacuum;
+  }
+} {0}
+
+
+# Verify that the incremental_vacuum pragma fails gracefully if it
+# is used against an invalid database file.
+#
+if {[permutation] == ""} {
+  do_test incrvacuum-14.1 {
+    set out [open invalid.db w]
+    puts $out "This is not an SQLite database file"
+    close $out
+    sqlite3 db3 invalid.db
+    catchsql {
+      PRAGMA incremental_vacuum(10);
+    } db3
+  } {1 {file is not a database}}
+  db3 close
+}
+
+do_test incrvacuum-15.1 {
+  db close
+  db2 close
+  forcedelete test.db
+  sqlite3 db test.db
+
+  set str [string repeat "abcdefghij" 500]
+
+  execsql {
+    PRAGMA cache_size = 10;
+    PRAGMA auto_vacuum = incremental;
+    CREATE TABLE t1(x, y);
+    INSERT INTO t1 VALUES('a', $str);
+    INSERT INTO t1 VALUES('b', $str);
+    INSERT INTO t1 VALUES('c', $str);
+    INSERT INTO t1 VALUES('d', $str);
+    INSERT INTO t1 VALUES('e', $str);
+    INSERT INTO t1 VALUES('f', $str);
+    INSERT INTO t1 VALUES('g', $str);
+    INSERT INTO t1 VALUES('h', $str);
+    INSERT INTO t1 VALUES('i', $str);
+    INSERT INTO t1 VALUES('j', $str);
+    INSERT INTO t1 VALUES('j', $str);
+
+    CREATE TABLE t2(x PRIMARY KEY, y);
+    INSERT INTO t2 VALUES('a', $str);
+    INSERT INTO t2 VALUES('b', $str);
+    INSERT INTO t2 VALUES('c', $str);
+    INSERT INTO t2 VALUES('d', $str);
+
+    BEGIN;
+      DELETE FROM t2;
+      PRAGMA incremental_vacuum;
+  }
+
+  catchsql {INSERT INTO t2 SELECT * FROM t1}
+
+  execsql { 
+    COMMIT;
+    PRAGMA integrity_check;
+  }
+} {ok}
+
+#-------------------------------------------------------------------------
+# At one point it was unsafe to truncate a db file on windows while there
+# were outstanding xFetch() references. This test case attempts to hit
+# that case.
+#
+ifcapable mmap {
+  reset_db
+  do_execsql_test incrvacuum-16.0 {
+    PRAGMA auto_vacuum = 2;
+    CREATE TABLE t3(a);
+    INSERT INTO t3 VALUES(1), (2), (3), (4);
+  
+    CREATE TABLE t2(x);
+    INSERT INTO t2 VALUES( randomblob(1000) );
+    INSERT INTO t2 VALUES( randomblob(1000) );
+    INSERT INTO t2 VALUES( randomblob(1000) );
+    INSERT INTO t2 VALUES( randomblob(1000) );
+    INSERT INTO t2 VALUES( randomblob(1000) );
+    INSERT INTO t2 VALUES( randomblob(1000) );
+  } {}
+  
+  # Reopen db to ensure the page-cache is empty.
+  #
+  db close
+  sqlite3 db test.db
+  
+  # Open db in mmap-mode. Open a transaction, delete some data, then run
+  # incremental-vacuum. Do not commit the transaction. 
+  #
+  do_execsql_test incrvacuum-16.1 {
+    PRAGMA mmap_size = 1000000;
+    BEGIN;
+    DELETE FROM t2;
+    PRAGMA incremental_vacuum = 1000;
+  } {1000000}
+
+  # Scan through table t3 (which is all clean pages - so mmap is used). Then,
+  # midway through, commit the transaction. This causes the db to be truncated
+  # while there are outstanding xFetch pages.
+  #
+  do_test incrvacuum-16.2 {
+    set res [list]
+    db eval { SELECT a FROM t3 } {
+      if {$a==3} { db eval COMMIT }
+      lappend res $a
+    }
+    set res
+  } {1 2 3 4}
+}
+
+# 2021-04-05 dbsqlfuzz cced0668cfd4da4eb2382cb9dd26c17c64aaff76
+#
+# This is an incremental vacuum database that has one free page that
+# needs to be filled.  After removing the last page from the end of
+# the database file to fill the free page slot, the last page that
+# is left is the tail of an overflow chain.
+#
+# But the size of the database file is shorter than the actual data
+# so that after incremental vacuum runs, the file is actually too
+# small to hold the last page of the overflow chain.
+#
+# At one point this caused an assertion fault in 
+# sqlite3PagerTruncateImage().
+#
+do_test incrvacuum-17.0 {
+  sqlite3 db {}
+  database_may_be_corrupt
+  db deserialize [decode_hexdb {
+| size 20480 pagesize 4096 filename x2.db
+| page 1 offset 0
+|      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+|     16: 10 00 01 01 00 40 20 20 00 00 00 05 00 00 00 07   .....@  ........
+|     32: 00 00 00 04 00 00 00 01 00 00 00 03 00 00 00 04   ................
+|     48: 00 00 00 00 00 00 00 03 00 00 00 01 00 00 00 00   ................
+|     64: 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 00   ................
+|     80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 05   ................
+|     96: 00 2e 53 60 0d 0f dc 00 01 0f b8 00 0f b8 0f b8   ..S`............
+|   4016: 00 00 00 00 00 00 00 00 22 02 06 17 11 11 01 31   ...............1
+|   4032: 74 61 62 6c 65 74 32 74 32 03 43 52 45 41 54 45   tablet2t2.CREATE
+|   4048: 20 54 41 42 4c 45 20 74 32 28 79 29 00 00 00 24    TABLE t2(y)...$
+|   4064: 11 11 01 31 74 61 62 6c 65 74 31 74 31 03 43 52   ...1tablet1t1.CR
+|   4080: 45 41 54 45 20 54 41 42 4c 45 20 74 31 28 78 29   EATE TABLE t1(x)
+| page 2 offset 4096
+|      0: 01 00 00 00 00 02 00 00 00 00 03 00 00 00 03 04   ................
+|     16: 00 00 00 05 03 00 00 00 03 00 00 00 00 00 00 00   ................
+| page 3 offset 8192
+|      0: 0d 00 00 00 02 05 47 00 08 dd 05 47 00 00 00 00   ......G....G....
+|   1344: 00 00 00 00 00 00 00 a7 0b 02 03 ce 1c 00 00 00   ................
+|   2256: 00 00 00 00 00 00 00 00 00 00 00 00 07 ce 14 01   ................
+|   2272: 04 81 9c 2c 00 00 00 00 00 00 00 00 00 00 00 00   ...,............
+|   4080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 05   ................
+| page 4 offset 12288
+|      0: 00 00 00 00 00 00 00 00 08 dd 05 47 00 00 00 00   ...........G....
+|   1344: 00 00 00 00 00 00 00 a7 0b 02 03 ce 1c 00 00 00   ................
+|   2256: 00 00 00 00 00 00 00 00 00 00 00 00 07 ce 14 01   ................
+|   2272: 04 81 9c 2c 00 00 00 00 00 00 00 00 00 00 00 00   ...,............
+|   4080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 05   ................
+| page 5 offset 16384
+|      0: 00 00 00 06 00 00 00 00 00 00 00 00 00 00 00 00   ................
+| end x2.db
+}]} {}
+do_catchsql_test incrvacuum-17.1 {
+  PRAGMA writable_schema=ON;
+  PRAGMA incremental_vacuum(10);
+} {0 {}}
+
+finish_test
diff --git a/test/incrvacuum2.test b/test/incrvacuum2.test
new file mode 100644
index 0000000000000000000000000000000000000000..6ec66c9debc51b5e4895560d8cf285cafda2e514
--- /dev/null
+++ b/test/incrvacuum2.test
@@ -0,0 +1,213 @@
+# 2007 May 04
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the incremental vacuum feature.
+#
+# $Id: incrvacuum2.test,v 1.6 2009/07/25 13:42:50 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If this build of the library does not support auto-vacuum, omit this
+# whole file.
+ifcapable {!autovacuum || !pragma} {
+  finish_test
+  return
+}
+
+set testprefix incrvacuum2
+
+# Create a database in incremental vacuum mode that has many
+# pages on the freelist.
+#
+do_test incrvacuum2-1.1 {
+  execsql {
+    PRAGMA page_size=1024;
+    PRAGMA auto_vacuum=incremental;
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(zeroblob(30000));
+    DELETE FROM t1;
+  }
+  file size test.db
+} {32768}
+
+# Vacuum off a single page.
+#
+do_test incrvacuum2-1.2 {
+  execsql {
+    PRAGMA incremental_vacuum(1);
+  }
+  file size test.db
+} {31744}
+
+# Vacuum off five pages
+#
+do_test incrvacuum2-1.3 {
+  execsql {
+    PRAGMA incremental_vacuum(5);
+  }
+  file size test.db
+} {26624}
+
+# Vacuum off all the rest
+#
+do_test incrvacuum2-1.4 {
+  execsql {
+    PRAGMA incremental_vacuum(1000);
+  }
+  file size test.db
+} {3072}
+
+# Make sure incremental vacuum works on attached databases.
+#
+ifcapable attach {
+  do_test incrvacuum2-2.1 {
+    forcedelete test2.db test2.db-journal
+    execsql {
+      ATTACH DATABASE 'test2.db' AS aux;
+      PRAGMA aux.auto_vacuum=incremental;
+      CREATE TABLE aux.t2(x);
+      INSERT INTO t2 VALUES(zeroblob(30000));
+      INSERT INTO t1 SELECT * FROM t2;
+      DELETE FROM t2;
+      DELETE FROM t1;
+    }
+    list [file size test.db] [file size test2.db]
+  } {32768 32768}
+  do_test incrvacuum2-2.2 {
+    execsql {
+      PRAGMA aux.incremental_vacuum(1)
+    }
+    list [file size test.db] [file size test2.db]
+  } {32768 31744}
+  do_test incrvacuum2-2.3 {
+    execsql {
+      PRAGMA aux.incremental_vacuum(5)
+    }
+    list [file size test.db] [file size test2.db]
+  } {32768 26624}
+  do_test incrvacuum2-2.4 {
+    execsql {
+      PRAGMA main.incremental_vacuum(5)
+    }
+    list [file size test.db] [file size test2.db]
+  } {27648 26624}
+  do_test incrvacuum2-2.5 {
+    execsql {
+      PRAGMA aux.incremental_vacuum
+    }
+    list [file size test.db] [file size test2.db]
+  } {27648 3072}
+  do_test incrvacuum2-2.6 {
+    execsql {
+      PRAGMA incremental_vacuum(1)
+    }
+    list [file size test.db] [file size test2.db]
+  } {26624 3072}
+}
+
+do_test incrvacuum2-3.1 {
+  execsql {
+    PRAGMA auto_vacuum = 'full';
+    BEGIN;
+    CREATE TABLE abc(a);
+    INSERT INTO abc VALUES(randstr(1500,1500));
+    COMMIT;
+  }
+} {}
+do_test incrvacuum2-3.2 {
+  execsql {
+    BEGIN;
+    DELETE FROM abc;
+    PRAGMA incremental_vacuum;
+    COMMIT;
+  }
+} {}
+
+integrity_check incrvacuum2-3.3
+
+if {[wal_is_capable]} {
+  # At one point, when a specific page was being extracted from the b-tree
+  # free-list (e.g. during an incremental-vacuum), all trunk pages that
+  # occurred before the specific page in the free-list trunk were being
+  # written to the journal or wal file. This is not necessary. Only the 
+  # extracted page and the page that contains the pointer to it need to
+  # be journalled.
+  #
+  # This problem was fixed by [d03d63d77e] (just before 3.7.6 release).
+  #
+  # This test case builds a database containing many free pages. Then runs
+  # "PRAGMA incremental_vacuum(1)" until the db contains zero free pages.
+  # Each "PRAGMA incremental_vacuum(1)" should modify at most 4 pages. The
+  # worst case is when a trunk page is removed from the end of the db file.
+  # In this case pages written are:
+  #
+  #   1. The previous trunk page (that contains a pointer to the recycled
+  #      trunk page), and
+  #   2. The leaf page transformed into a trunk page to replace the recycled
+  #      page, and
+  #   3. The trunk page that contained a pointer to the leaf page used 
+  #      in (2), and
+  #   4. Page 1. Page 1 is always updated, even in WAL mode, since it contains
+  #      the "number of free-list pages" field.
+  #
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+
+  do_execsql_test 4.1 {
+    PRAGMA page_size = 512;
+    PRAGMA auto_vacuum = 2;
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(randomblob(400));
+    INSERT INTO t1 SELECT * FROM t1;            --    2
+    INSERT INTO t1 SELECT * FROM t1;            --    4
+    INSERT INTO t1 SELECT * FROM t1;            --    8
+    INSERT INTO t1 SELECT * FROM t1;            --   16
+    INSERT INTO t1 SELECT * FROM t1;            --   32
+    INSERT INTO t1 SELECT * FROM t1;            --  128
+    INSERT INTO t1 SELECT * FROM t1;            --  256
+    INSERT INTO t1 SELECT * FROM t1;            --  512
+    INSERT INTO t1 SELECT * FROM t1;            -- 1024
+    INSERT INTO t1 SELECT * FROM t1;            -- 2048
+    INSERT INTO t1 SELECT * FROM t1;            -- 4096
+    INSERT INTO t1 SELECT * FROM t1;            -- 8192
+    DELETE FROM t1 WHERE oid>512;
+    DELETE FROM t1;
+  }
+
+  do_test 4.2 {
+    execsql { 
+      PRAGMA journal_mode = WAL;
+      PRAGMA incremental_vacuum(1);
+    }
+  } {wal}
+  do_test 4.2.1 {
+    execsql { PRAGMA wal_checkpoint }
+    file size test.db-wal
+  } [expr {32+2*(512+24)}]
+
+  do_test 4.3 {
+    db close
+    sqlite3 db test.db
+    set maxsz 0
+    while {[file size test.db] > [expr 512*3]} {
+      execsql { PRAGMA journal_mode = WAL }
+      execsql { PRAGMA wal_checkpoint }
+      execsql { PRAGMA incremental_vacuum(1) }
+      set newsz [file size test.db-wal]
+      if {$newsz>$maxsz} {set maxsz $newsz}
+    }
+    set maxsz 
+  } [expr {32+3*(512+24)}]
+}
+
+finish_test
diff --git a/test/incrvacuum3.test b/test/incrvacuum3.test
new file mode 100644
index 0000000000000000000000000000000000000000..b4cbc8b0c879c29f87655382a6d330bdf1bc7d12
--- /dev/null
+++ b/test/incrvacuum3.test
@@ -0,0 +1,153 @@
+# 2013 Feb 25
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for the SQLite library, focusing
+# on the incremental vacuum feature.
+#
+# The tests in this file were added at the same time as optimizations 
+# were made to:
+#
+#   * Truncate the database after a rollback mode commit, and
+#
+#   * Avoid moving pages to locations from which they may need to be moved
+#     a second time if an incremental-vacuum proccess is allowed to vacuum
+#     the entire database.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix incrvacuum3
+
+# If this build of the library does not support auto-vacuum, omit this
+# whole file.
+ifcapable {!autovacuum || !pragma} {
+  finish_test
+  return
+}
+
+proc check_on_disk {} {
+
+  # Copy the wal and journal files for database "test.db" to "test2.db".
+  forcedelete test2.db test2.db-journal test2.db-wal
+  if {[file exists test.db-journal]} { 
+    forcecopy test.db-journal test2.db-journal 
+  }
+  if {[file exists test.db-wal]} { 
+    forcecopy test.db-wal test2.db-wal 
+  }
+
+  # Now copy the database file itself. Do this using open/read/puts
+  # instead of the [file copy] command in order to avoid attempting
+  # to read the 512 bytes begining at offset $sqlite_pending_byte.
+  #
+  set sz [file size test.db]
+  set fd [open test.db]
+  set fd2 [open test2.db w]
+  fconfigure $fd  -translation binary
+  fconfigure $fd2 -translation binary
+  if {$sz>$::sqlite_pending_byte} {
+    puts -nonewline $fd2 [read $fd $::sqlite_pending_byte]
+    seek $fd [expr $::sqlite_pending_byte+512]
+    seek $fd2 [expr $::sqlite_pending_byte+512]
+  }
+  puts -nonewline $fd2 [read $fd]
+  close $fd2
+  close $fd
+
+  # Open "test2.db" and check it is Ok.
+  sqlite3 dbcheck test2.db
+  set ret [dbcheck eval { PRAGMA integrity_check }]
+  dbcheck close
+  set ret
+}
+
+# Run these tests once in rollback journal mode, and once in wal mode.
+#
+foreach {T jrnl_mode} {
+  1 delete
+  2 wal
+} {
+  catch { db close }
+  forcedelete test.db test.db-journal test.db-wal
+  sqlite3 db test.db
+  db eval {
+    PRAGMA cache_size = 5;
+    PRAGMA page_size = 1024;
+    PRAGMA auto_vacuum = 2;
+  }
+  db eval "PRAGMA journal_mode = $jrnl_mode"
+  
+  foreach {tn sql} {
+    1 {
+      CREATE TABLE t1(x UNIQUE);
+      INSERT INTO t1 VALUES(randomblob(400));
+      INSERT INTO t1 VALUES(randomblob(400));
+      INSERT INTO t1 SELECT randomblob(400) FROM t1;    --   4
+      INSERT INTO t1 SELECT randomblob(400) FROM t1;    --   8
+      INSERT INTO t1 SELECT randomblob(400) FROM t1;    --  16
+      INSERT INTO t1 SELECT randomblob(400) FROM t1;    --  32
+      INSERT INTO t1 SELECT randomblob(400) FROM t1;    --  64
+      INSERT INTO t1 SELECT randomblob(400) FROM t1;    -- 128
+      INSERT INTO t1 SELECT randomblob(400) FROM t1;    -- 256
+    }
+  
+    2 {
+      DELETE FROM t1 WHERE rowid%8;
+    }
+  
+    3 { 
+      BEGIN;
+        PRAGMA incremental_vacuum = 100;
+        INSERT INTO t1 SELECT randomblob(400) FROM t1;    --  64
+        INSERT INTO t1 SELECT randomblob(400) FROM t1;    -- 128
+        INSERT INTO t1 SELECT randomblob(400) FROM t1;    -- 256
+      ROLLBACK;
+    }
+  
+    4 { 
+      BEGIN;
+        SAVEPOINT one;
+          PRAGMA incremental_vacuum = 100;
+          SAVEPOINT two;
+            INSERT INTO t1 SELECT randomblob(400) FROM t1;    --  64
+            INSERT INTO t1 SELECT randomblob(400) FROM t1;    -- 128
+            INSERT INTO t1 SELECT randomblob(400) FROM t1;    -- 256
+    }
+  
+    5 {   ROLLBACK to two }
+  
+    6 { ROLLBACK to one }
+  
+    7 { 
+        INSERT INTO t1 SELECT randomblob(400) FROM t1;    --  64
+        PRAGMA incremental_vacuum = 1000;
+        INSERT INTO t1 SELECT randomblob(400) FROM t1;    -- 128
+        INSERT INTO t1 SELECT randomblob(400) FROM t1;    -- 256
+      ROLLBACK;
+    }
+  
+    8 { 
+      BEGIN;
+        INSERT INTO t1 SELECT randomblob(400) FROM t1;    --  64
+        PRAGMA incremental_vacuum = 1000;
+        INSERT INTO t1 SELECT randomblob(400) FROM t1;    --  128
+      COMMIT;
+    }
+  } {
+    do_execsql_test $T.1.$tn.1 $sql
+    do_execsql_test $T.1.$tn.2 {PRAGMA integrity_check} ok
+    do_test         $T.1.$tn.3 { check_on_disk }        ok
+  }
+
+  do_execsql_test $T.1.x.1 { PRAGMA freelist_count   } 0
+  do_execsql_test $T.1.x.2 { SELECT count(*) FROM t1 } 128
+}
+
+finish_test
diff --git a/test/incrvacuum_ioerr.test b/test/incrvacuum_ioerr.test
new file mode 100644
index 0000000000000000000000000000000000000000..50f7fa2029b2041ad01110e9a3ab03b1358f856e
--- /dev/null
+++ b/test/incrvacuum_ioerr.test
@@ -0,0 +1,182 @@
+# 2001 October 12
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing for correct handling of I/O errors
+# such as writes failing because the disk is full.
+# 
+# The tests in this file use special facilities that are only
+# available in the SQLite test fixture.
+#
+# $Id: incrvacuum_ioerr.test,v 1.6 2008/07/12 14:52:20 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If this build of the library does not support auto-vacuum, omit this
+# whole file.
+ifcapable {!autovacuum} {
+  finish_test
+  return
+}
+
+do_ioerr_test incrvacuum-ioerr-1 -cksum 1 -sqlprep {
+  PRAGMA auto_vacuum = 'incremental';
+  CREATE TABLE abc(a);
+  INSERT INTO abc VALUES(randstr(1500,1500));
+} -sqlbody {
+  BEGIN;
+  CREATE TABLE abc2(a);
+  DELETE FROM abc;
+  PRAGMA incremental_vacuum;
+  COMMIT;
+} 
+
+# do_ioerr_test incrvacuum-ioerr-3 -start 1 -cksum 1 -tclprep {
+#   db eval {
+#     PRAGMA auto_vacuum = 'full';
+#     PRAGMA cache_size = 10;
+#     BEGIN;
+#     CREATE TABLE abc(a, UNIQUE(a));
+#   }
+#   for {set ii 0} {$ii < 25} {incr ii} {
+#     db eval {INSERT INTO abc VALUES(randstr(1500,1500))}
+#   }
+#   db eval COMMIT
+# } -sqlbody {
+#   BEGIN;
+#   DELETE FROM abc WHERE (oid%3)==0;
+#   INSERT INTO abc SELECT a || '1234567890' FROM abc WHERE oid%2;
+#   CREATE INDEX abc_i ON abc(a);
+#   DELETE FROM abc WHERE (oid%2)==0;
+#   DROP INDEX abc_i;
+#   COMMIT;
+# }
+
+do_ioerr_test incrvacuum-ioerr-2 -start 1 -cksum 1 -tclprep {
+  db eval {
+    PRAGMA auto_vacuum = 'full';
+    PRAGMA cache_size = 10;
+    BEGIN;
+    CREATE TABLE abc(a, UNIQUE(a));
+  }
+  for {set ii 0} {$ii < 25} {incr ii} {
+    db eval {INSERT INTO abc VALUES(randstr(1500,1500))}
+  }
+  db eval COMMIT
+} -sqlbody {
+  BEGIN;
+  PRAGMA incremental_vacuum;
+  DELETE FROM abc WHERE (oid%3)==0;
+  PRAGMA incremental_vacuum;
+  INSERT INTO abc SELECT a || '1234567890' FROM abc WHERE oid%2;
+  PRAGMA incremental_vacuum;
+  CREATE INDEX abc_i ON abc(a);
+  DELETE FROM abc WHERE (oid%2)==0;
+  PRAGMA incremental_vacuum;
+  DROP INDEX abc_i;
+  PRAGMA incremental_vacuum;
+  COMMIT;
+}
+
+do_ioerr_test incrvacuum-ioerr-3 -start 1 -cksum 1 -tclprep {
+  db eval {
+    PRAGMA auto_vacuum = 'incremental';
+    BEGIN;
+    CREATE TABLE a(i integer, b blob);
+    INSERT INTO a VALUES(1, randstr(1500,1500));
+    INSERT INTO a VALUES(2, randstr(1500,1500));
+  }
+  db eval COMMIT
+  db eval {DELETE FROM a WHERE oid}
+} -sqlbody {
+  PRAGMA incremental_vacuum(5);
+} -cleanup {
+  sqlite3 db test.db
+  integrity_check incrvacuum-ioerr-2.$n.integritycheck
+  db close
+}
+
+
+ifcapable shared_cache {
+
+  catch { db close }
+  forcedelete test.db
+  set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
+  
+  # Create two connections to a single shared-cache:
+  #
+  sqlite3 db1 test.db
+  sqlite3 db2 test.db
+  
+  # Create a database with around 20 free pages.
+  #
+  do_test incrvacuum-ioerr-4.0 {
+    execsql {
+      PRAGMA page_size = 1024;
+      PRAGMA locking_mode = exclusive;
+      PRAGMA auto_vacuum = 'incremental';
+      BEGIN;
+      CREATE TABLE a(i integer, b blob);
+    } db1
+    for {set ii 0} {$ii < 20} {incr ii} {
+      execsql { INSERT INTO a VALUES($ii, randstr(800,1500)); } db1
+    }
+    execsql COMMIT db1
+    execsql {DELETE FROM a WHERE oid} db1
+  } {}
+  
+  set ::rc 1
+  for {set iTest 1} {$::rc && $iTest<2000} {incr iTest} {
+  
+    # Figure out how big the database is and how many free pages it
+    # has before running incremental-vacuum.
+    #
+    set nFree [execsql {pragma freelist_count} db1]
+    set nPage [execsql {pragma page_count} db1]
+    puts "nFree=$nFree nPage=$nPage"
+  
+    # Now run incremental-vacuum to vacuum 5 pages from the db file.
+    # The iTest'th I/O call is set to fail.
+    #
+    set ::sqlite_io_error_pending $iTest
+    set ::sqlite_io_error_persist 1
+    do_test incrvacuum-ioerr-4.$iTest.1 {
+      set ::rc [catch {execsql {pragma incremental_vacuum(5)} db1} msg]
+      expr {$::rc==0 || $msg eq "disk I/O error"}
+    } {1}
+  
+    set ::sqlite_io_error_pending 0
+    set ::sqlite_io_error_persist 0
+    set ::sqlite_io_error_hit 0
+    set ::sqlite_io_error_hardhit 0
+  
+    set nFree2 [execsql {pragma freelist_count} db1]
+    set nPage2 [execsql {pragma page_count} db1]
+  
+    do_test incrvacuum-ioerr-4.$iTest.2 {
+      set shrink [expr {$nPage-$nPage2}]
+      expr {$shrink==0 || $shrink==5 || ($nFree<5 && $shrink==$nFree)}
+    } {1}
+  
+    do_test incrvacuum-ioerr-4.$iTest.3 {
+      expr {$nPage - $nPage2}
+    } [expr {$nFree - $nFree2}]
+  }
+  
+  # Close the two database connections and restore the default
+  # shared-cache mode setting.
+  #
+  db1 close
+  db2 close
+  sqlite3_enable_shared_cache $::enable_shared_cache
+}
+
+finish_test
diff --git a/test/index.test b/test/index.test
new file mode 100644
index 0000000000000000000000000000000000000000..11d3d7191c61cf1e5db347b2443126ff44bf8ba9
--- /dev/null
+++ b/test/index.test
@@ -0,0 +1,769 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the CREATE INDEX statement.
+#
+# $Id: index.test,v 1.43 2008/01/16 18:20:42 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Create a basic index and verify it is added to sqlite_master
+#
+do_test index-1.1 {
+  execsql {CREATE TABLE test1(f1 int, f2 int, f3 int)}
+  execsql {CREATE INDEX index1 ON test1(f1)}
+  execsql {SELECT name FROM sqlite_master WHERE type!='meta' ORDER BY name}
+} {index1 test1}
+do_test index-1.1b {
+  execsql {SELECT name, sql, tbl_name, type FROM sqlite_master 
+           WHERE name='index1'}
+} {index1 {CREATE INDEX index1 ON test1(f1)} test1 index}
+do_test index-1.1c {
+  db close
+  sqlite3 db test.db
+  execsql {SELECT name, sql, tbl_name, type FROM sqlite_master 
+           WHERE name='index1'}
+} {index1 {CREATE INDEX index1 ON test1(f1)} test1 index}
+do_test index-1.1d {
+  db close
+  sqlite3 db test.db
+  execsql {SELECT name FROM sqlite_master WHERE type!='meta' ORDER BY name}
+} {index1 test1}
+
+# Verify that the index dies with the table
+#
+do_test index-1.2 {
+  execsql {DROP TABLE test1}
+  execsql {SELECT name FROM sqlite_master WHERE type!='meta' ORDER BY name}
+} {}
+
+# Try adding an index to a table that does not exist
+#
+do_test index-2.1 {
+  set v [catch {execsql {CREATE INDEX index1 ON test1(f1)}} msg]
+  lappend v $msg
+} {1 {no such table: main.test1}}
+
+# Try adding an index on a column of a table where the table
+# exists but the column does not.
+#
+do_test index-2.1b {
+  execsql {CREATE TABLE test1(f1 int, f2 int, f3 int)}
+  set v [catch {execsql {CREATE INDEX index1 ON test1(f4)}} msg]
+  lappend v $msg
+} {1 {no such column: f4}}
+
+# Try an index with some columns that match and others that do now.
+#
+do_test index-2.2 {
+  set v [catch {execsql {CREATE INDEX index1 ON test1(f1, f2, f4, f3)}} msg]
+  execsql {DROP TABLE test1}
+  lappend v $msg
+} {1 {no such column: f4}}
+
+# Try creating a bunch of indices on the same table
+#
+set r {}
+for {set i 1} {$i<100} {incr i} {
+  lappend r [format index%02d $i]
+}
+do_test index-3.1 {
+  execsql {CREATE TABLE test1(f1 int, f2 int, f3 int, f4 int, f5 int)}
+  for {set i 1} {$i<100} {incr i} {
+    set sql "CREATE INDEX [format index%02d $i] ON test1(f[expr {($i%5)+1}])"
+    execsql $sql
+  }
+  execsql {SELECT name FROM sqlite_master 
+           WHERE type='index' AND tbl_name='test1'
+           ORDER BY name}
+} $r
+integrity_check index-3.2.1
+ifcapable {reindex} {
+  do_test index-3.2.2 {
+    execsql REINDEX
+  } {}
+}
+integrity_check index-3.2.3
+
+
+# Verify that all the indices go away when we drop the table.
+#
+do_test index-3.3 {
+  execsql {DROP TABLE test1}
+  execsql {SELECT name FROM sqlite_master 
+           WHERE type='index' AND tbl_name='test1'
+           ORDER BY name}
+} {}
+
+# Create a table and insert values into that table.  Then create
+# an index on that table.  Verify that we can select values
+# from the table correctly using the index.
+#
+# Note that the index names "index9" and "indext" are chosen because
+# they both have the same hash.
+#
+do_test index-4.1 {
+  execsql {CREATE TABLE test1(cnt int, power int)}
+  for {set i 1} {$i<20} {incr i} {
+    execsql "INSERT INTO test1 VALUES($i,[expr {1<<$i}])"
+  }
+  execsql {CREATE INDEX index9 ON test1(cnt)}
+  execsql {CREATE INDEX indext ON test1(power)}
+  execsql {SELECT name FROM sqlite_master WHERE type!='meta' ORDER BY name}
+} {index9 indext test1}
+do_test index-4.2 {
+  execsql {SELECT cnt FROM test1 WHERE power=4}
+} {2}
+do_test index-4.3 {
+  execsql {SELECT cnt FROM test1 WHERE power=1024}
+} {10}
+do_test index-4.4 {
+  execsql {SELECT power FROM test1 WHERE cnt=6}
+} {64}
+do_test index-4.5 {
+  execsql {DROP INDEX indext}
+  execsql {SELECT power FROM test1 WHERE cnt=6}
+} {64}
+do_test index-4.6 {
+  execsql {SELECT cnt FROM test1 WHERE power=1024}
+} {10}
+do_test index-4.7 {
+  execsql {CREATE INDEX indext ON test1(cnt)}
+  execsql {SELECT power FROM test1 WHERE cnt=6}
+} {64}
+do_test index-4.8 {
+  execsql {SELECT cnt FROM test1 WHERE power=1024}
+} {10}
+do_test index-4.9 {
+  execsql {DROP INDEX index9}
+  execsql {SELECT power FROM test1 WHERE cnt=6}
+} {64}
+do_test index-4.10 {
+  execsql {SELECT cnt FROM test1 WHERE power=1024}
+} {10}
+do_test index-4.11 {
+  execsql {DROP INDEX indext}
+  execsql {SELECT power FROM test1 WHERE cnt=6}
+} {64}
+do_test index-4.12 {
+  execsql {SELECT cnt FROM test1 WHERE power=1024}
+} {10}
+do_test index-4.13 {
+  execsql {DROP TABLE test1}
+  execsql {SELECT name FROM sqlite_master WHERE type!='meta' ORDER BY name}
+} {}
+integrity_check index-4.14
+
+# Do not allow indices to be added to sqlite_master
+#
+do_test index-5.1 {
+  set v [catch {execsql {CREATE INDEX index1 ON sqlite_master(name)}} msg]
+  lappend v $msg
+} {1 {table sqlite_master may not be indexed}}
+do_test index-5.2 {
+  execsql {SELECT name FROM sqlite_master WHERE type!='meta'}
+} {}
+
+# Do not allow indices with duplicate names to be added
+#
+do_test index-6.1 {
+  execsql {CREATE TABLE test1(f1 int, f2 int)}
+  execsql {CREATE TABLE test2(g1 real, g2 real)}
+  execsql {CREATE INDEX index1 ON test1(f1)}
+  set v [catch {execsql {CREATE INDEX index1 ON test2(g1)}} msg]
+  lappend v $msg
+} {1 {index index1 already exists}}
+do_test index-6.1.1 {
+  catchsql {CREATE INDEX [index1] ON test2(g1)}
+} {1 {index index1 already exists}}
+do_test index-6.1b {
+  execsql {SELECT name FROM sqlite_master WHERE type!='meta' ORDER BY name}
+} {index1 test1 test2}
+do_test index-6.1c {
+  catchsql {CREATE INDEX IF NOT EXISTS index1 ON test1(f1)}
+} {0 {}}
+do_test index-6.2 {
+  set v [catch {execsql {CREATE INDEX test1 ON test2(g1)}} msg]
+  lappend v $msg
+} {1 {there is already a table named test1}}
+do_test index-6.2b {
+  execsql {SELECT name FROM sqlite_master WHERE type!='meta' ORDER BY name}
+} {index1 test1 test2}
+do_test index-6.3 {
+  execsql {DROP TABLE test1}
+  execsql {DROP TABLE test2}
+  execsql {SELECT name FROM sqlite_master WHERE type!='meta' ORDER BY name}
+} {}
+do_test index-6.4 {
+  execsql {
+    CREATE TABLE test1(a,b);
+    CREATE INDEX index1 ON test1(a);
+    CREATE INDEX index2 ON test1(b);
+    CREATE INDEX index3 ON test1(a,b);
+    DROP TABLE test1;
+    SELECT name FROM sqlite_master WHERE type!='meta' ORDER BY name;
+  }
+} {}
+integrity_check index-6.5
+
+
+# Create a primary key
+#
+do_test index-7.1 {
+  execsql {CREATE TABLE test1(f1 int, f2 int primary key)}
+  for {set i 1} {$i<20} {incr i} {
+    execsql "INSERT INTO test1 VALUES($i,[expr {1<<$i}])"
+  }
+  execsql {SELECT count(*) FROM test1}
+} {19}
+do_test index-7.2 {
+  execsql {SELECT f1 FROM test1 WHERE f2=65536}
+} {16}
+do_test index-7.3 {
+  execsql {
+    SELECT name FROM sqlite_master 
+    WHERE type='index' AND tbl_name='test1'
+  }
+} {sqlite_autoindex_test1_1}
+do_test index-7.4 {
+  execsql {DROP table test1}
+  execsql {SELECT name FROM sqlite_master WHERE type!='meta'}
+} {}
+integrity_check index-7.5
+
+# Make sure we cannot drop a non-existant index.
+#
+do_test index-8.1 {
+  set v [catch {execsql {DROP INDEX index1}} msg]
+  lappend v $msg
+} {1 {no such index: index1}}
+
+# Make sure we don't actually create an index when the EXPLAIN keyword
+# is used.
+#
+do_test index-9.1 {
+  execsql {CREATE TABLE tab1(a int)}
+  ifcapable {explain} {
+    execsql {EXPLAIN CREATE INDEX idx1 ON tab1(a)}
+  }
+  execsql {SELECT name FROM sqlite_master WHERE tbl_name='tab1'}
+} {tab1}
+do_test index-9.2 {
+  execsql {CREATE INDEX idx1 ON tab1(a)}
+  execsql {SELECT name FROM sqlite_master WHERE tbl_name='tab1' ORDER BY name}
+} {idx1 tab1}
+integrity_check index-9.3
+
+# Allow more than one entry with the same key.
+#
+do_test index-10.0 {
+  execsql {
+    CREATE TABLE t1(a int, b int);
+    CREATE INDEX i1 ON t1(a);
+    INSERT INTO t1 VALUES(1,2);
+    INSERT INTO t1 VALUES(2,4);
+    INSERT INTO t1 VALUES(3,8);
+    INSERT INTO t1 VALUES(1,12);
+    SELECT b FROM t1 WHERE a=1 ORDER BY b;
+  }
+} {2 12}
+do_test index-10.1 {
+  execsql {
+    SELECT b FROM t1 WHERE a=2 ORDER BY b;
+  }
+} {4}
+do_test index-10.2 {
+  execsql {
+    DELETE FROM t1 WHERE b=12;
+    SELECT b FROM t1 WHERE a=1 ORDER BY b;
+  }
+} {2}
+do_test index-10.3 {
+  execsql {
+    DELETE FROM t1 WHERE b=2;
+    SELECT b FROM t1 WHERE a=1 ORDER BY b;
+  }
+} {}
+do_test index-10.4 {
+  execsql {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES (1,1);
+    INSERT INTO t1 VALUES (1,2);
+    INSERT INTO t1 VALUES (1,3);
+    INSERT INTO t1 VALUES (1,4);
+    INSERT INTO t1 VALUES (1,5);
+    INSERT INTO t1 VALUES (1,6);
+    INSERT INTO t1 VALUES (1,7);
+    INSERT INTO t1 VALUES (1,8);
+    INSERT INTO t1 VALUES (1,9);
+    INSERT INTO t1 VALUES (2,0);
+    SELECT b FROM t1 WHERE a=1 ORDER BY b;
+  }
+} {1 2 3 4 5 6 7 8 9}
+do_test index-10.5 {
+  ifcapable subquery {
+    execsql { DELETE FROM t1 WHERE b IN (2, 4, 6, 8); }
+  } else {
+    execsql { DELETE FROM t1 WHERE b = 2 OR b = 4 OR b = 6 OR b = 8; }
+  }
+  execsql {
+    SELECT b FROM t1 WHERE a=1 ORDER BY b;
+  }
+} {1 3 5 7 9}
+do_test index-10.6 {
+  execsql {
+    DELETE FROM t1 WHERE b>2;
+    SELECT b FROM t1 WHERE a=1 ORDER BY b;
+  }
+} {1}
+do_test index-10.7 {
+  execsql {
+    DELETE FROM t1 WHERE b=1;
+    SELECT b FROM t1 WHERE a=1 ORDER BY b;
+  }
+} {}
+do_test index-10.8 {
+  execsql {
+    SELECT b FROM t1 ORDER BY b;
+  }
+} {0}
+integrity_check index-10.9
+
+# Automatically create an index when we specify a primary key.
+#
+do_test index-11.1 {
+  execsql {
+    CREATE TABLE t3(
+      a text,
+      b int,
+      c float,
+      PRIMARY KEY(b)
+    );
+  }
+  for {set i 1} {$i<=50} {incr i} {
+    execsql "INSERT INTO t3 VALUES('x${i}x',$i,0.$i)"
+  }
+  set sqlite_search_count 0
+  concat [execsql {SELECT c FROM t3 WHERE b==10}] $sqlite_search_count
+} {0.1 2}
+integrity_check index-11.2
+
+
+# Numeric strings should compare as if they were numbers.  So even if the
+# strings are not character-by-character the same, if they represent the
+# same number they should compare equal to one another.  Verify that this
+# is true in indices.
+#
+# Updated for sqlite3 v3: SQLite will now store these values as numbers
+# (because the affinity of column a is NUMERIC) so the quirky
+# representations are not retained. i.e. '+1.0' becomes '1'.
+do_test index-12.1 {
+  execsql {
+    CREATE TABLE t4(a NUM,b);
+    INSERT INTO t4 VALUES('0.0',1);
+    INSERT INTO t4 VALUES('0.00',2);
+    INSERT INTO t4 VALUES('abc',3);
+    INSERT INTO t4 VALUES('-1.0',4);
+    INSERT INTO t4 VALUES('+1.0',5);
+    INSERT INTO t4 VALUES('0',6);
+    INSERT INTO t4 VALUES('00000',7);
+    SELECT a FROM t4 ORDER BY b;
+  }
+} {0 0 abc -1 1 0 0}
+do_test index-12.2 {
+  execsql {
+    SELECT a FROM t4 WHERE a==0 ORDER BY b
+  }
+} {0 0 0 0}
+do_test index-12.3 {
+  execsql {
+    SELECT a FROM t4 WHERE a<0.5 ORDER BY b
+  }
+} {0 0 -1 0 0}
+do_test index-12.4 {
+  execsql {
+    SELECT a FROM t4 WHERE a>-0.5 ORDER BY b
+  }
+} {0 0 abc 1 0 0}
+do_test index-12.5 {
+  execsql {
+    CREATE INDEX t4i1 ON t4(a);
+    SELECT a FROM t4 WHERE a==0 ORDER BY b
+  }
+} {0 0 0 0}
+do_test index-12.6 {
+  execsql {
+    SELECT a FROM t4 WHERE a<0.5 ORDER BY b
+  }
+} {0 0 -1 0 0}
+do_test index-12.7 {
+  execsql {
+    SELECT a FROM t4 WHERE a>-0.5 ORDER BY b
+  }
+} {0 0 abc 1 0 0}
+integrity_check index-12.8
+
+# Make sure we cannot drop an automatically created index.
+#
+do_test index-13.1 {
+  execsql {
+   CREATE TABLE t5(
+      a int UNIQUE,
+      b float PRIMARY KEY,
+      c varchar(10),
+      UNIQUE(a,c)
+   );
+   INSERT INTO t5 VALUES(1,2,3);
+   SELECT * FROM t5;
+  }
+} {1 2.0 3}
+do_test index-13.2 {
+  set ::idxlist [execsql {
+    SELECT name FROM sqlite_master WHERE type='index' AND tbl_name='t5';
+  }]
+  llength $::idxlist
+} {3}
+for {set i 0} {$i<[llength $::idxlist]} {incr i} {
+  do_test index-13.3.$i {
+    catchsql "
+      DROP INDEX '[lindex $::idxlist $i]';
+    "
+  } {1 {index associated with UNIQUE or PRIMARY KEY constraint cannot be dropped}}
+}
+do_test index-13.4 {
+  execsql {
+    INSERT INTO t5 VALUES('a','b','c');
+    SELECT * FROM t5;
+  }
+} {1 2.0 3 a b c}
+integrity_check index-13.5
+
+# Check the sort order of data in an index.
+#
+do_test index-14.1 {
+  execsql {
+    CREATE TABLE t6(a,b,c);
+    CREATE INDEX t6i1 ON t6(a,b);
+    INSERT INTO t6 VALUES('','',1);
+    INSERT INTO t6 VALUES('',NULL,2);
+    INSERT INTO t6 VALUES(NULL,'',3);
+    INSERT INTO t6 VALUES('abc',123,4);
+    INSERT INTO t6 VALUES(123,'abc',5);
+    SELECT c FROM t6 ORDER BY a,b;
+  }
+} {3 5 2 1 4}
+do_test index-14.2 {
+  execsql {
+    SELECT c FROM t6 WHERE a='';
+  }
+} {2 1}
+do_test index-14.3 {
+  execsql {
+    SELECT c FROM t6 WHERE b='';
+  }
+} {1 3}
+do_test index-14.4 {
+  execsql {
+    SELECT c FROM t6 WHERE a>'';
+  }
+} {4}
+do_test index-14.5 {
+  execsql {
+    SELECT c FROM t6 WHERE a>='';
+  }
+} {2 1 4}
+do_test index-14.6 {
+  execsql {
+    SELECT c FROM t6 WHERE a>123;
+  }
+} {2 1 4}
+do_test index-14.7 {
+  execsql {
+    SELECT c FROM t6 WHERE a>=123;
+  }
+} {5 2 1 4}
+do_test index-14.8 {
+  execsql {
+    SELECT c FROM t6 WHERE a<'abc';
+  }
+} {5 2 1}
+do_test index-14.9 {
+  execsql {
+    SELECT c FROM t6 WHERE a<='abc';
+  }
+} {5 2 1 4}
+do_test index-14.10 {
+  execsql {
+    SELECT c FROM t6 WHERE a<='';
+  }
+} {5 2 1}
+do_test index-14.11 {
+  execsql {
+    SELECT c FROM t6 WHERE a<'';
+  }
+} {5}
+integrity_check index-14.12
+
+do_test index-15.1 {
+  execsql {
+    DELETE FROM t1;
+    SELECT * FROM t1;
+  }
+} {}
+do_test index-15.2 {
+  execsql {
+    INSERT INTO t1 VALUES('1.234e5',1);
+    INSERT INTO t1 VALUES('12.33e04',2);
+    INSERT INTO t1 VALUES('12.35E4',3);
+    INSERT INTO t1 VALUES('12.34e',4);
+    INSERT INTO t1 VALUES('12.32e+4',5);
+    INSERT INTO t1 VALUES('12.36E+04',6);
+    INSERT INTO t1 VALUES('12.36E+',7);
+    INSERT INTO t1 VALUES('+123.10000E+0003',8);
+    INSERT INTO t1 VALUES('+',9);
+    INSERT INTO t1 VALUES('+12347.E+02',10);
+    INSERT INTO t1 VALUES('+12347E+02',11);
+    INSERT INTO t1 VALUES('+.125E+04',12);
+    INSERT INTO t1 VALUES('-.125E+04',13);
+    INSERT INTO t1 VALUES('.125E+0',14);
+    INSERT INTO t1 VALUES('.125',15);
+    SELECT b FROM t1 ORDER BY a, b;
+  }
+} {13 14 15 12 8 5 2 1 3 6 10 11 9 4 7}
+do_test index-15.3 {
+  execsql {
+    SELECT b FROM t1 WHERE typeof(a) IN ('integer','real') ORDER BY b;
+  }
+} {1 2 3 5 6 8 10 11 12 13 14 15}
+integrity_check index-15.4
+
+# The following tests - index-16.* - test that when a table definition
+# includes qualifications that specify the same constraint twice only a
+# single index is generated to enforce the constraint.
+#
+# For example: "CREATE TABLE abc( x PRIMARY KEY, UNIQUE(x) );"
+#
+do_test index-16.1 {
+  execsql {
+    CREATE TABLE t7(c UNIQUE PRIMARY KEY);
+    SELECT count(*) FROM sqlite_master WHERE tbl_name = 't7' AND type = 'index';
+  }
+} {1}
+do_test index-16.2 {
+  execsql {
+    DROP TABLE t7;
+    CREATE TABLE t7(c UNIQUE PRIMARY KEY);
+    SELECT count(*) FROM sqlite_master WHERE tbl_name = 't7' AND type = 'index';
+  }
+} {1}
+do_test index-16.3 {
+  execsql {
+    DROP TABLE t7;
+    CREATE TABLE t7(c PRIMARY KEY, UNIQUE(c) );
+    SELECT count(*) FROM sqlite_master WHERE tbl_name = 't7' AND type = 'index';
+  }
+} {1}
+do_test index-16.4 {
+  execsql {
+    DROP TABLE t7;
+    CREATE TABLE t7(c, d , UNIQUE(c, d), PRIMARY KEY(c, d) );
+    SELECT count(*) FROM sqlite_master WHERE tbl_name = 't7' AND type = 'index';
+  }
+} {1}
+do_test index-16.5 {
+  execsql {
+    DROP TABLE t7;
+    CREATE TABLE t7(c, d , UNIQUE(c), PRIMARY KEY(c, d) );
+    SELECT count(*) FROM sqlite_master WHERE tbl_name = 't7' AND type = 'index';
+  }
+} {2}
+
+# Test that automatically create indices are named correctly. The current
+# convention is: "sqlite_autoindex_<table name>_<integer>"
+#
+# Then check that it is an error to try to drop any automtically created
+# indices.
+do_test index-17.1 {
+  execsql {
+    DROP TABLE t7;
+    CREATE TABLE t7(c, d UNIQUE, UNIQUE(c), PRIMARY KEY(c, d) );
+    SELECT name FROM sqlite_master WHERE tbl_name = 't7' AND type = 'index';
+  }
+} {sqlite_autoindex_t7_1 sqlite_autoindex_t7_2 sqlite_autoindex_t7_3}
+do_test index-17.2 {
+  catchsql {
+    DROP INDEX sqlite_autoindex_t7_1;
+  }
+} {1 {index associated with UNIQUE or PRIMARY KEY constraint cannot be dropped}}
+do_test index-17.3 {
+  catchsql {
+    DROP INDEX IF EXISTS sqlite_autoindex_t7_1;
+  }
+} {1 {index associated with UNIQUE or PRIMARY KEY constraint cannot be dropped}}
+do_test index-17.4 {
+  catchsql {
+    DROP INDEX IF EXISTS no_such_index;
+  }
+} {0 {}}
+
+
+# The following tests ensure that it is not possible to explicitly name
+# a schema object with a name beginning with "sqlite_". Granted that is a
+# little outside the focus of this test scripts, but this has got to be
+# tested somewhere.
+do_test index-18.1 {
+  catchsql {
+    CREATE TABLE sqlite_t1(a, b, c);
+  }
+} {1 {object name reserved for internal use: sqlite_t1}}
+do_test index-18.1.2 {
+  catchsql {
+    CREATE TABLE sqlite_t1(a, b, c);
+  }
+} {1 {object name reserved for internal use: sqlite_t1}}
+sqlite3_db_config db DEFENSIVE 0
+do_test index-18.2 {
+  catchsql {
+    CREATE INDEX sqlite_i1 ON t7(c);
+  }
+} {1 {object name reserved for internal use: sqlite_i1}}
+ifcapable view {
+do_test index-18.3 {
+  catchsql {
+    CREATE VIEW sqlite_v1 AS SELECT * FROM t7;
+  }
+} {1 {object name reserved for internal use: sqlite_v1}}
+} ;# ifcapable view
+ifcapable {trigger} {
+  do_test index-18.4 {
+    catchsql {
+      CREATE TRIGGER sqlite_tr1 BEFORE INSERT ON t7 BEGIN SELECT 1; END;
+    }
+  } {1 {object name reserved for internal use: sqlite_tr1}}
+}
+do_test index-18.5 {
+  execsql {
+    DROP TABLE t7;
+  }
+} {}
+
+# These tests ensure that if multiple table definition constraints are
+# implemented by a single indice, the correct ON CONFLICT policy applies.
+ifcapable conflict {
+  do_test index-19.1 {
+    execsql {
+      CREATE TABLE t7(a UNIQUE PRIMARY KEY);
+      CREATE TABLE t8(a UNIQUE PRIMARY KEY ON CONFLICT ROLLBACK);
+      INSERT INTO t7 VALUES(1);
+      INSERT INTO t8 VALUES(1);
+    }
+  } {}
+  do_test index-19.2 {
+    catchsql {
+      BEGIN;
+      INSERT INTO t7 VALUES(1);
+    }
+  } {1 {UNIQUE constraint failed: t7.a}}
+  do_test index-19.3 {
+    catchsql {
+      BEGIN;
+    }
+  } {1 {cannot start a transaction within a transaction}}
+  do_test index-19.4 {
+    catchsql {
+      INSERT INTO t8 VALUES(1);
+    }
+  } {1 {UNIQUE constraint failed: t8.a}}
+  do_test index-19.5 {
+    catchsql {
+      BEGIN;
+      COMMIT;
+    }
+  } {0 {}}
+  do_test index-19.6 {
+    catchsql {
+      DROP TABLE t7;
+      DROP TABLE t8;
+      CREATE TABLE t7(
+         a PRIMARY KEY ON CONFLICT FAIL, 
+         UNIQUE(a) ON CONFLICT IGNORE
+      );
+    }
+  } {1 {conflicting ON CONFLICT clauses specified}}
+} ; # end of "ifcapable conflict" block
+
+ifcapable {reindex} {
+  do_test index-19.7 {
+    execsql REINDEX
+  } {}
+}
+integrity_check index-19.8
+
+# Drop index with a quoted name.  Ticket #695.
+#
+do_test index-20.1 {
+  execsql {
+    CREATE INDEX "t6i2" ON t6(c);
+    DROP INDEX "t6i2";
+  }
+} {}
+do_test index-20.2 {
+  execsql {
+    DROP INDEX "t6i1";
+  }
+} {}
+
+# Try to create a TEMP index on a non-TEMP table. */
+#
+do_test index-21.1 {
+  catchsql {
+     CREATE INDEX temp.i21 ON t6(c);
+  }
+} {1 {cannot create a TEMP index on non-TEMP table "t6"}}
+do_test index-21.2 {
+  catchsql {
+     CREATE TEMP TABLE t6(x);
+     INSERT INTO temp.t6 values(1),(5),(9);
+     CREATE INDEX temp.i21 ON t6(x);
+     SELECT x FROM t6 ORDER BY x DESC;
+  }
+} {0 {9 5 1}}
+
+# 2019-05-01 ticket https://www.sqlite.org/src/info/3be1295b264be2fa
+do_execsql_test index-22.0 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a, b TEXT);
+  CREATE UNIQUE INDEX IF NOT EXISTS x1 ON t1(b==0);
+  CREATE INDEX IF NOT EXISTS x2 ON t1(a || 0) WHERE b;
+  INSERT INTO t1(a,b) VALUES('a',1),('a',0);
+  SELECT a, b, '|' FROM t1;
+} {a 1 | a 0 |}
+
+# 2019-05-10 ticket https://www.sqlite.org/src/info/ae0f637bddc5290b
+do_execsql_test index-23.0 {
+  DROP TABLE t1;
+  CREATE TABLE t1(a TEXT, b REAL);
+  CREATE UNIQUE INDEX t1x1 ON t1(a GLOB b);
+  INSERT INTO t1(a,b) VALUES('0.0','1'),('1.0','1');
+  SELECT * FROM t1;
+  REINDEX;
+} {0.0 1.0 1.0 1.0}
+do_execsql_test index-23.1 {
+  DROP TABLE t1;
+  CREATE TABLE t1(a REAL);
+  CREATE UNIQUE INDEX index_0 ON t1(TYPEOF(a));
+  INSERT OR IGNORE INTO t1(a) VALUES (0.1),(FALSE);
+  SELECT * FROM t1;
+  REINDEX;
+} {0.1}
+
+finish_test
diff --git a/test/index2.test b/test/index2.test
new file mode 100644
index 0000000000000000000000000000000000000000..b1d7e227fb5c5a03695eab047c91d258cf2a8355
--- /dev/null
+++ b/test/index2.test
@@ -0,0 +1,73 @@
+# 2005-01-11
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the CREATE INDEX statement.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Create a table with a large number of columns
+#
+do_test index2-1.1 {
+  set sql {CREATE TABLE t1(}
+  for {set i 1} {$i<1000} {incr i} {
+    append sql "c$i,"
+  }
+  append sql "c1000);"
+  execsql $sql
+} {}
+do_test index2-1.2 {
+  set sql {INSERT INTO t1 VALUES(}
+  for {set i 1} {$i<1000} {incr i} {
+    append sql $i,
+  }
+  append sql {1000);}
+  execsql $sql
+} {}
+do_test index2-1.3 {
+  execsql {SELECT c123 FROM t1}
+} 123
+do_test index2-1.4 {
+  execsql BEGIN
+  for {set j 1} {$j<=100} {incr j} {
+    set sql {INSERT INTO t1 VALUES(}
+    for {set i 1} {$i<1000} {incr i} {
+      append sql [expr {$j*10000+$i}],
+    }
+    append sql "[expr {$j*10000+1000}]);"
+    execsql $sql
+  }
+  execsql COMMIT
+  execsql {SELECT count(*) FROM t1}
+} 101
+do_test index2-1.5 {
+  execsql {SELECT round(sum(c1000)) FROM t1}
+} {50601000.0}
+
+# Create indices with many columns
+#
+do_test index2-2.1 {
+  set sql "CREATE INDEX t1i1 ON t1("
+  for {set i 1} {$i<1000} {incr i} {
+    append sql c$i,
+  }
+  append sql c1000)
+  execsql $sql
+} {}
+do_test index2-2.2 {
+  ifcapable explain {
+    execsql {EXPLAIN SELECT c9 FROM t1 ORDER BY c1, c2, c3, c4, c5}
+  }
+  execsql {SELECT c9 FROM t1 ORDER BY c1, c2, c3, c4, c5, c6 LIMIT 5}
+} {9 10009 20009 30009 40009}
+
+finish_test
diff --git a/test/index3.test b/test/index3.test
new file mode 100644
index 0000000000000000000000000000000000000000..6100f4857346dd6448a1e91ba8625d7b7384f254
--- /dev/null
+++ b/test/index3.test
@@ -0,0 +1,96 @@
+# 2005-02-14
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the CREATE INDEX statement.
+#
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Ticket #1115.  Make sure that when a UNIQUE index is created on a
+# non-unique column (or columns) that it fails and that it leaves no
+# residue behind.
+#
+do_test index3-1.1 {
+  execsql {
+    CREATE TABLE t1(a);
+    INSERT INTO t1 VALUES(1);
+    INSERT INTO t1 VALUES(1);
+    SELECT * FROM t1;
+  }
+} {1 1}
+do_test index3-1.2 {
+  catchsql {
+    BEGIN;
+    CREATE UNIQUE INDEX i1 ON t1(a);
+  }
+} {1 {UNIQUE constraint failed: t1.a}}
+do_test index3-1.3 {
+  catchsql COMMIT;
+} {0 {}}
+integrity_check index3-1.4
+
+# Backwards compatibility test:
+#
+# Verify that CREATE INDEX statements that use strings instead of 
+# identifiers for the the column names continue to work correctly.
+# This is undocumented behavior retained for backwards compatiblity.
+#
+do_execsql_test index3-2.1 {
+  DROP TABLE t1;
+  CREATE TABLE t1(a, b, c, d, e, 
+                  PRIMARY KEY('a'), UNIQUE('b' COLLATE nocase DESC));
+  CREATE INDEX t1c ON t1('c');
+  CREATE INDEX t1d ON t1('d' COLLATE binary ASC);
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION SELECT x+1 FROM c WHERE x<30)
+    INSERT INTO t1(a,b,c,d,e) 
+      SELECT x, printf('ab%03xxy',x), x, x, x FROM c;
+} {}
+do_execsql_test index3-2.2 {
+  SELECT a FROM t1 WHERE b='ab005xy' COLLATE nocase;
+} {5}
+do_execsql_test index3-2.2eqp {
+  EXPLAIN QUERY PLAN
+  SELECT a FROM t1 WHERE b='ab005xy' COLLATE nocase;
+} {/USING INDEX/}
+do_execsql_test index3-2.3 {
+  SELECT name FROM sqlite_master WHERE tbl_name='t1' ORDER BY name
+} {sqlite_autoindex_t1_1 sqlite_autoindex_t1_2 t1 t1c t1d}
+do_execsql_test index3-2.4 {
+  CREATE TABLE t2a(a integer, b, PRIMARY KEY(a));
+  CREATE TABLE t2b("a" integer, b, PRIMARY KEY("a"));
+  CREATE TABLE t2c([a] integer, b, PRIMARY KEY([a]));
+  CREATE TABLE t2d('a' integer, b, PRIMARY KEY('a'));
+}
+do_execsql_test index3-2.5 {
+  SELECT name FROM sqlite_master WHERE tbl_name LIKE 't2_' ORDER BY name
+} {t2a t2b t2c t2d}
+ 
+
+
+
+
+# This test corrupts the database file so it must be the last test
+# in the series.
+#
+do_test index3-99.1 {
+  sqlite3_db_config db DEFENSIVE 0
+  execsql {
+    PRAGMA writable_schema=on;
+    UPDATE sqlite_master SET sql='nonsense' WHERE name='t1d'
+  }
+  db close
+  catch { sqlite3 db test.db }
+  catchsql { DROP INDEX t1c }
+} {1 {malformed database schema (t1d)}}
+
+finish_test
diff --git a/test/index4.test b/test/index4.test
new file mode 100644
index 0000000000000000000000000000000000000000..4fbfa5291b17d3b1f1b8a40f5eede38b04fa633e
--- /dev/null
+++ b/test/index4.test
@@ -0,0 +1,126 @@
+# 2011 July 9
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the CREATE INDEX statement.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+set testprefix index4
+
+do_execsql_test 1.1 {
+  BEGIN;
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(randomblob(102));
+    INSERT INTO t1 SELECT randomblob(102) FROM t1;     --     2
+    INSERT INTO t1 SELECT randomblob(102) FROM t1;     --     4
+    INSERT INTO t1 SELECT randomblob(102) FROM t1;     --     8
+    INSERT INTO t1 SELECT randomblob(102) FROM t1;     --    16
+    INSERT INTO t1 SELECT randomblob(102) FROM t1;     --    32
+    INSERT INTO t1 SELECT randomblob(102) FROM t1;     --    64
+    INSERT INTO t1 SELECT randomblob(102) FROM t1;     --   128
+    INSERT INTO t1 SELECT randomblob(102) FROM t1;     --   256
+    INSERT INTO t1 SELECT randomblob(102) FROM t1;     --   512
+    INSERT INTO t1 SELECT randomblob(102) FROM t1;     --  1024
+    INSERT INTO t1 SELECT randomblob(102) FROM t1;     --  2048
+    INSERT INTO t1 SELECT randomblob(102) FROM t1;     --  4096
+    INSERT INTO t1 SELECT randomblob(102) FROM t1;     --  8192
+    INSERT INTO t1 SELECT randomblob(102) FROM t1;     -- 16384
+    INSERT INTO t1 SELECT randomblob(102) FROM t1;     -- 32768
+    INSERT INTO t1 SELECT randomblob(102) FROM t1;     -- 65536
+  COMMIT;
+}
+
+do_execsql_test 1.2 {
+  CREATE INDEX i1 ON t1(x);
+}
+do_execsql_test 1.3 {
+  PRAGMA integrity_check 
+} {ok}
+
+# The same test again - this time with limited memory.
+#
+ifcapable memorymanage {
+  set soft_limit [sqlite3_soft_heap_limit 50000]
+
+  db close
+  sqlite3 db test.db
+
+  do_execsql_test 1.4 {
+    PRAGMA cache_size = 10;
+    CREATE INDEX i2 ON t1(x);
+  }
+  do_execsql_test 1.5 {
+    PRAGMA integrity_check 
+  } {ok}
+
+  sqlite3_soft_heap_limit $soft_limit
+}
+
+
+do_execsql_test 1.6 {
+  BEGIN;
+    DROP TABLE t1;
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES('a');
+    INSERT INTO t1 VALUES('b');
+    INSERT INTO t1 VALUES('c');
+    INSERT INTO t1 VALUES('d');
+    INSERT INTO t1 VALUES('e');
+    INSERT INTO t1 VALUES('f');
+    INSERT INTO t1 VALUES('g');
+    INSERT INTO t1 VALUES(NULL);
+    INSERT INTO t1 SELECT randomblob(1202) FROM t1;     --    16
+    INSERT INTO t1 SELECT randomblob(2202) FROM t1;     --    32
+    INSERT INTO t1 SELECT randomblob(3202) FROM t1;     --    64
+    INSERT INTO t1 SELECT randomblob(4202) FROM t1;     --   128
+    INSERT INTO t1 SELECT randomblob(5202) FROM t1;     --   256
+  COMMIT;
+  CREATE INDEX i1 ON t1(x); 
+  PRAGMA integrity_check
+} {ok}
+
+do_execsql_test 1.7 {
+  BEGIN;
+    DROP TABLE t1;
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES('a');
+  COMMIT;
+  CREATE INDEX i1 ON t1(x); 
+  PRAGMA integrity_check
+} {ok}
+
+do_execsql_test 1.8 {
+  BEGIN;
+    DROP TABLE t1;
+    CREATE TABLE t1(x);
+  COMMIT;
+  CREATE INDEX i1 ON t1(x); 
+  PRAGMA integrity_check
+} {ok}
+
+do_execsql_test 2.1 {
+  BEGIN;
+    CREATE TABLE t2(x);
+    INSERT INTO t2 VALUES(14);
+    INSERT INTO t2 VALUES(35);
+    INSERT INTO t2 VALUES(15);
+    INSERT INTO t2 VALUES(35);
+    INSERT INTO t2 VALUES(16);
+  COMMIT;
+}
+do_catchsql_test 2.2 {
+  CREATE UNIQUE INDEX i3 ON t2(x);
+} {1 {UNIQUE constraint failed: t2.x}}
+
+
+finish_test
diff --git a/test/index5.test b/test/index5.test
new file mode 100644
index 0000000000000000000000000000000000000000..4c0aa0431e626dcaac66e811cca314b2eb54acbc
--- /dev/null
+++ b/test/index5.test
@@ -0,0 +1,80 @@
+# 2012 August 6
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix index5
+
+do_test 1.1 {
+  if {[permutation]=="memsubsys1"} {
+    execsql { PRAGMA auto_vacuum = 0; }
+  }
+  execsql {
+    PRAGMA page_size = 1024;
+    CREATE TABLE t1(x);
+    BEGIN;
+  }
+  for {set i 0} {$i < 100000} {incr i} {
+    execsql { INSERT INTO t1 VALUES(randstr(100,100)) }
+  }
+  execsql COMMIT
+  execsql { 
+    CREATE INDEX i1 ON t1(x);
+    DROP INDEX I1;
+    PRAGMA main.page_size;
+  }
+} {1024}
+
+db close
+testvfs tvfs
+tvfs filter xWrite
+tvfs script write_cb
+proc write_cb {xCall file handle iOfst args} {
+  if {[file tail $file]=="test.db"} {
+    lappend ::write_list [expr $iOfst/1024 + 1]
+  }
+}
+
+do_test 1.2 {
+  sqlite3 db test.db -vfs tvfs
+  set ::write_list [list]
+  execsql { CREATE INDEX i1 ON t1(x) }
+} {}
+
+do_test 1.3 {
+  set nForward 0
+  set nBackward 0
+  set nNoncont 0
+  set iPrev [lindex $::write_list 0]
+  for {set i 1} {$i < [llength $::write_list]} {incr i} {
+    set iNext [lindex $::write_list $i]
+    if {$iNext==($iPrev+1)} {
+      incr nForward
+    } elseif {$iNext==($iPrev-1)} { 
+      incr nBackward 
+    } else {
+      incr nNoncont
+    }
+    set iPrev $iNext
+  }
+  if {0} {
+    puts -nonewline \
+        " (forward=$nForward, back=$nBackward, noncontiguous=$nNoncont)"
+  }
+
+  expr {$nForward > 2*($nBackward + $nNoncont)}
+} {1}
+db close
+tvfs delete
+
+finish_test
diff --git a/test/index6.test b/test/index6.test
new file mode 100644
index 0000000000000000000000000000000000000000..16370f521dfc6c0251c55277ec7177ceb1fca588
--- /dev/null
+++ b/test/index6.test
@@ -0,0 +1,531 @@
+# 2013-07-31
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test cases for partial indices
+#
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+load_static_extension db wholenumber;
+do_test index6-1.1 {
+  # Able to parse and manage partial indices
+  execsql {
+    CREATE TABLE t1(a,b,c);
+    CREATE INDEX t1a ON t1(a) WHERE a IS NOT NULL;
+    CREATE INDEX t1b ON t1(b) WHERE b>10;
+    CREATE VIRTUAL TABLE nums USING wholenumber;
+    INSERT INTO t1(a,b,c)
+       SELECT CASE WHEN value%3!=0 THEN value END, value, value
+         FROM nums WHERE value<=20;
+    SELECT count(a), count(b) FROM t1;
+    PRAGMA integrity_check;
+  }
+} {14 20 ok}
+
+# Make sure the count(*) optimization works correctly with
+# partial indices.  Ticket [a5c8ed66cae16243be6] 2013-10-03.
+#
+do_execsql_test index6-1.1.1 {
+  SELECT count(*) FROM t1;
+} {20}
+
+# Error conditions during parsing...
+#
+do_test index6-1.2 {
+  catchsql {
+    CREATE INDEX bad1 ON t1(a,b) WHERE x IS NOT NULL;
+  }
+} {1 {no such column: x}}
+do_test index6-1.3 {
+  catchsql {
+    CREATE INDEX bad1 ON t1(a,b) WHERE EXISTS(SELECT * FROM t1);
+  }
+} {1 {subqueries prohibited in partial index WHERE clauses}}
+do_test index6-1.4 {
+  catchsql {
+    CREATE INDEX bad1 ON t1(a,b) WHERE a!=?1;
+  }
+} {1 {parameters prohibited in partial index WHERE clauses}}
+do_test index6-1.5 {
+  catchsql {
+    CREATE INDEX bad1 ON t1(a,b) WHERE a!=random();
+  }
+} {1 {non-deterministic functions prohibited in partial index WHERE clauses}}
+do_test index6-1.6 {
+  catchsql {
+    CREATE INDEX bad1 ON t1(a,b) WHERE a NOT LIKE 'abc%';
+  }
+} {0 {}}
+do_execsql_test index6-1.7 {
+  DROP INDEX IF EXISTS bad1;
+}
+
+do_test index6-1.10 {
+  execsql {
+    ANALYZE;
+    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
+    PRAGMA integrity_check;
+  }
+} {{} 20 t1a {14 1} t1b {10 1} ok}
+
+# STAT1 shows the partial indices have a reduced number of
+# rows.
+#
+do_test index6-1.11 {
+  execsql {
+    UPDATE t1 SET a=b;
+    ANALYZE;
+    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
+    PRAGMA integrity_check;
+  }
+} {{} 20 t1a {20 1} t1b {10 1} ok}
+
+do_test index6-1.11 {
+  execsql {
+    UPDATE t1 SET a=NULL WHERE b%3!=0;
+    UPDATE t1 SET b=b+100;
+    ANALYZE;
+    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
+    PRAGMA integrity_check;
+  }
+} {{} 20 t1a {6 1} t1b {20 1} ok}
+
+do_test index6-1.12 {
+  execsql {
+    UPDATE t1 SET a=CASE WHEN b%3!=0 THEN b END;
+    UPDATE t1 SET b=b-100;
+    ANALYZE;
+    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
+    PRAGMA integrity_check;
+  }
+} {{} 20 t1a {13 1} t1b {10 1} ok}
+
+do_test index6-1.13 {
+  execsql {
+    DELETE FROM t1 WHERE b BETWEEN 8 AND 12;
+    ANALYZE;
+    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
+    PRAGMA integrity_check;
+  }
+} {{} 15 t1a {10 1} t1b {8 1} ok}
+
+do_test index6-1.14 {
+  execsql {
+    REINDEX;
+    ANALYZE;
+    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
+    PRAGMA integrity_check;
+  }
+} {{} 15 t1a {10 1} t1b {8 1} ok}
+
+do_test index6-1.15 {
+  execsql {
+    CREATE INDEX t1c ON t1(c);
+    ANALYZE;
+    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
+    PRAGMA integrity_check;
+  }
+} {t1a {10 1} t1b {8 1} t1c {15 1} ok}
+
+# Queries use partial indices as appropriate times.
+#
+do_test index6-2.1 {
+  execsql {
+    CREATE TABLE t2(a,b);
+    INSERT INTO t2(a,b) SELECT value, value FROM nums WHERE value<1000;
+    UPDATE t2 SET a=NULL WHERE b%2==0;
+    CREATE INDEX t2a1 ON t2(a) WHERE a IS NOT NULL;
+    SELECT count(*) FROM t2 WHERE a IS NOT NULL;
+  }
+} {500}
+do_test index6-2.2 {
+  execsql {
+    EXPLAIN QUERY PLAN
+    SELECT * FROM t2 WHERE a=5;
+  }
+} {/(SEARCH|SCAN) t2 USING INDEX t2a1 /}
+ifcapable stat4 {
+  execsql ANALYZE
+  do_test index6-2.3stat4 {
+    execsql {
+      EXPLAIN QUERY PLAN
+      SELECT * FROM t2 WHERE a IS NOT NULL;
+    }
+  } {/(SEARCH|SCAN) t2 USING INDEX t2a1 /}
+} else {
+  do_test index6-2.3stat4 {
+    execsql {
+      EXPLAIN QUERY PLAN
+      SELECT * FROM t2 WHERE a IS NOT NULL AND a>0;
+    }
+  } {/(SEARCH|SCANE) t2 USING INDEX t2a1 /}
+}
+do_test index6-2.4 {
+  execsql {
+    EXPLAIN QUERY PLAN
+    SELECT * FROM t2 WHERE a IS NULL;
+  }
+} {~/INDEX t2a1/}
+
+do_execsql_test index6-2.101 {
+  DROP INDEX t2a1;
+  UPDATE t2 SET a=b, b=b+10000;
+  SELECT b FROM t2 WHERE a=15;
+} {10015}
+do_execsql_test index6-2.102 {
+  CREATE INDEX t2a2 ON t2(a) WHERE a<100 OR a>200;
+  SELECT b FROM t2 WHERE a=15;
+  PRAGMA integrity_check;
+} {10015 ok}
+do_execsql_test index6-2.102eqp {
+  EXPLAIN QUERY PLAN
+  SELECT b FROM t2 WHERE a=15;
+} {~/.*INDEX t2a2.*/}
+do_execsql_test index6-2.103 {
+  SELECT b FROM t2 WHERE a=15 AND a<100;
+} {10015}
+do_execsql_test index6-2.103eqp {
+  EXPLAIN QUERY PLAN
+  SELECT b FROM t2 WHERE a=15 AND a<100;
+} {/.*INDEX t2a2.*/}
+do_execsql_test index6-2.104 {
+  SELECT b FROM t2 WHERE a=515 AND a>200;
+} {10515}
+do_execsql_test index6-2.104eqp {
+  EXPLAIN QUERY PLAN
+  SELECT b FROM t2 WHERE a=515 AND a>200;
+} {/.*INDEX t2a2.*/}
+
+# Partial UNIQUE indices
+#
+do_execsql_test index6-3.1 {
+  CREATE TABLE t3(a,b);
+  INSERT INTO t3 SELECT value, value FROM nums WHERE value<200;
+  UPDATE t3 SET a=999 WHERE b%5!=0;
+  CREATE UNIQUE INDEX t3a ON t3(a) WHERE a<>999;
+} {}
+do_test index6-3.2 {
+  # unable to insert a duplicate row a-value that is not 999.
+  catchsql {
+    INSERT INTO t3(a,b) VALUES(150, 'test1');
+  }
+} {1 {UNIQUE constraint failed: t3.a}}
+do_test index6-3.3 {
+  # can insert multiple rows with a==999 because such rows are not
+  # part of the unique index.
+  catchsql {
+    INSERT INTO t3(a,b) VALUES(999, 'test1'), (999, 'test2');
+  }
+} {0 {}}
+do_execsql_test index6-3.4 {
+  SELECT count(*) FROM t3 WHERE a=999;
+} {162}
+integrity_check index6-3.5
+
+do_execsql_test index6-4.0 {
+  VACUUM;
+  PRAGMA integrity_check;
+} {ok}
+
+# Silently ignore database name qualifiers in partial indices.
+#
+do_execsql_test index6-5.0 {
+  CREATE INDEX t3b ON t3(b) WHERE xyzzy.t3.b BETWEEN 5 AND 10;
+                               /* ^^^^^-- ignored */
+  ANALYZE;
+  SELECT count(*) FROM t3 WHERE t3.b BETWEEN 5 AND 10;
+  SELECT stat+0 FROM sqlite_stat1 WHERE idx='t3b';
+} {6 6}
+
+# Test case for ticket [2ea3e9fe6379fc3f6ce7e090ce483c1a3a80d6c9] from
+# 2014-04-13: Partial index causes assertion fault on UPDATE OR REPLACE.
+#
+do_execsql_test index6-6.0 {
+  CREATE TABLE t6(a,b);
+  CREATE UNIQUE INDEX t6ab ON t1(a,b);
+  CREATE INDEX t6b ON t6(b) WHERE b=1;
+  INSERT INTO t6(a,b) VALUES(123,456);
+  SELECT * FROM t6;
+} {123 456}
+do_execsql_test index6-6.1 {
+  UPDATE OR REPLACE t6 SET b=789;
+  SELECT * FROM t6;
+} {123 789}
+do_execsql_test index6-6.2 {
+  PRAGMA integrity_check;
+} {ok}
+
+# Test case for ticket [2326c258d02ead33d69faa63de8f4686b9b1b9d9] on
+# 2015-02-24.  Any use of a partial index qualifying constraint inside
+# the ON clause of a LEFT JOIN was causing incorrect results for all
+# versions of SQLite 3.8.0 through 3.8.8.
+#
+do_execsql_test index6-7.0 {
+  CREATE TABLE t7a(x);
+  CREATE TABLE t7b(y);
+  INSERT INTO t7a(x) VALUES(1);
+  CREATE INDEX t7ax ON t7a(x) WHERE x=99;
+  PRAGMA automatic_index=OFF;
+  SELECT * FROM t7a LEFT JOIN t7b ON (x=99) ORDER BY x;
+} {1 {}}
+do_execsql_test index6-7.1 {
+  INSERT INTO t7b(y) VALUES(2);
+  SELECT * FROM t7a JOIN t7b ON (x=99) ORDER BY x;
+} {}
+do_execsql_test index6-7.2 {
+  INSERT INTO t7a(x) VALUES(99);
+  SELECT * FROM t7a LEFT JOIN t7b ON (x=99) ORDER BY x;
+} {1 {} 99 2}
+do_execsql_test index6-7.3 {
+  SELECT * FROM t7a JOIN t7b ON (x=99) ORDER BY x;
+} {99 2}
+do_execsql_test index6-7.4 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t7a JOIN t7b ON (x=99) ORDER BY x;
+} {/USING COVERING INDEX t7ax/}
+
+
+do_execsql_test index6-8.0 {
+  CREATE TABLE t8a(a,b);
+  CREATE TABLE t8b(x,y);
+  CREATE INDEX i8c ON t8b(y) WHERE x = 'value';
+
+  INSERT INTO t8a VALUES(1, 'one');
+  INSERT INTO t8a VALUES(2, 'two');
+  INSERT INTO t8a VALUES(3, 'three');
+
+  INSERT INTO t8b VALUES('value', 1);
+  INSERT INTO t8b VALUES('dummy', 2);
+  INSERT INTO t8b VALUES('value', 3);
+  INSERT INTO t8b VALUES('dummy', 4);
+} {}
+
+do_eqp_test index6-8.1 {
+  SELECT * FROM t8a LEFT JOIN t8b ON (x = 'value' AND y = a)
+} {
+  QUERY PLAN
+  |--SCAN t8a
+  `--SEARCH t8b USING INDEX i8c (y=?) LEFT-JOIN
+}
+
+do_execsql_test index6-8.2 {
+  SELECT * FROM t8a LEFT JOIN t8b ON (x = 'value' AND y = a)
+} {
+  1 one value 1 
+  2 two {} {} 
+  3 three value 3
+}
+
+# 2015-06-11.  Assertion fault found by AFL
+#
+do_execsql_test index6-9.1 {
+  CREATE TABLE t9(a int, b int, c int);
+  CREATE INDEX t9ca ON t9(c,a) WHERE a in (10,12,20);
+  INSERT INTO t9 VALUES(1,1,9),(10,2,35),(11,15,82),(20,19,5),(NULL,7,3);
+  UPDATE t9 SET b=c WHERE a in (10,12,20);
+  SELECT a,b,c,'|' FROM t9 ORDER BY a;
+} {{} 7 3 | 1 1 9 | 10 35 35 | 11 15 82 | 20 5 5 |}
+do_execsql_test index6-9.2 {
+  DROP TABLE t9;
+  CREATE TABLE t9(a int, b int, c int, PRIMARY KEY(a)) WITHOUT ROWID;
+  CREATE INDEX t9ca ON t9(c,a) WHERE a in (10,12,20);
+  INSERT INTO t9 VALUES(1,1,9),(10,2,35),(11,15,82),(20,19,5);
+  UPDATE t9 SET b=c WHERE a in (10,12,20);
+  SELECT a,b,c,'|' FROM t9 ORDER BY a;
+} {1 1 9 | 10 35 35 | 11 15 82 | 20 5 5 |}
+
+# AND-connected terms in the WHERE clause of a partial index
+#
+do_execsql_test index6-10.1 {
+  CREATE TABLE t10(a,b,c,d,e INTEGER PRIMARY KEY);
+  INSERT INTO t10 VALUES
+    (1,2,3,4,5),
+    (2,3,4,5,6),
+    (3,4,5,6,7),
+    (1,2,3,8,9);
+  CREATE INDEX t10x ON t10(d) WHERE a=1 AND b=2 AND c=3;
+  SELECT e FROM t10 WHERE a=1 AND b=2 AND c=3 ORDER BY d;
+} {5 9}
+do_execsql_test index6-10.1eqp {
+  EXPLAIN QUERY PLAN
+  SELECT e FROM t10 WHERE a=1 AND b=2 AND c=3 ORDER BY d;
+} {/USING INDEX t10x/}
+do_execsql_test index6-10.2 {
+  SELECT e FROM t10 WHERE c=3 AND 2=b AND a=1 ORDER BY d DESC;
+} {9 5}
+do_execsql_test index6-10.2eqp {
+  EXPLAIN QUERY PLAN
+  SELECT e FROM t10 WHERE c=3 AND 2=b AND a=1 ORDER BY d DESC;
+} {/USING INDEX t10x/}
+do_execsql_test index6-10.3 {
+  SELECT e FROM t10 WHERE a=1 AND b=2 ORDER BY d DESC;
+} {9 5}
+do_execsql_test index6-10.3eqp {
+  EXPLAIN QUERY PLAN
+  SELECT e FROM t10 WHERE a=1 AND b=2 ORDER BY d DESC;
+} {~/USING INDEX t10x/}
+
+# A partial index will be used for a full table scan, where possible
+do_execsql_test index6-11.1 {
+  CREATE TABLE t11(a,b,c);
+  CREATE INDEX t11x ON t11(a) WHERE b<>99;
+  EXPLAIN QUERY PLAN SELECT a FROM t11 WHERE b<>99;
+} {/USING INDEX t11x/}
+do_execsql_test index6-11.2 {
+  EXPLAIN QUERY PLAN SELECT a FROM t11 WHERE b<>99 AND c<>98;
+} {/USING INDEX t11x/}
+
+# 2018-12-08
+# Ticket https://www.sqlite.org/src/info/1d958d90596593a7
+# NOT IN operator fails when using a partial index.
+#
+do_execsql_test index6-12.1 {
+  DROP TABLE IF EXISTS t1;
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t1(a,b);
+  INSERT INTO t1 VALUES(1,1);
+  INSERT INTO t1 VALUES(2,2);
+  CREATE TABLE t2(x);
+  INSERT INTO t2 VALUES(1);
+  INSERT INTO t2 VALUES(2);
+  SELECT 'one', * FROM t2 WHERE x NOT IN (SELECT a FROM t1);
+  CREATE INDEX t1a ON t1(a) WHERE b=1;
+  SELECT 'two', * FROM t2 WHERE x NOT IN (SELECT a FROM t1);
+} {}
+do_execsql_test index6-12.2 {
+  SELECT x FROM t2 WHERE x IN (SELECT a FROM t1) ORDER BY +x;
+} {1 2}
+
+# 2019-05-04
+# Ticket https://www.sqlite.org/src/tktview/5c6955204c392ae763a95
+# Theorem prover error
+#
+do_execsql_test index6-13.1 {
+  DROP TABLE IF EXISTS t0;
+  CREATE TABLE t0(c0);
+  CREATE INDEX index_0 ON t0(c0) WHERE c0 NOT NULL;
+  INSERT INTO t0(c0) VALUES (NULL);
+  SELECT * FROM t0 WHERE c0 OR 1;
+} {{}}
+
+# 2019-05-11
+# Ticket https://sqlite.org/src/tktview/8025674847
+reset_db
+do_execsql_test index6-14.1 {
+  CREATE TABLE IF NOT EXISTS t0 (c0, c1);
+  CREATE INDEX IF NOT EXISTS i0 ON t0(c0, c1) WHERE c0 NOT NULL;
+  INSERT INTO t0(c0, c1) VALUES(NULL, 'row');
+  SELECT * FROM t0 WHERE t0.c0 IS NOT 1;
+} {{} row}
+
+do_execsql_test index6-14.2 {
+  SELECT * FROM t0 WHERE CASE c0 WHEN 0 THEN 0 ELSE 1 END;
+} {{} row}
+
+# 2019-08-30
+# Ticket https://www.sqlite.org/src/info/a6408d42b9f44462
+# Ticket https://www.sqlite.org/src/info/fba33c8b1df6a915
+# https://sqlite.org/src/info/bac716244fddac1fe841
+#
+do_execsql_test index6-15.1 {
+  DROP TABLE t0;
+  CREATE TABLE t0(c0);
+  INSERT INTO t0(c0) VALUES (NULL);
+  CREATE INDEX i0 ON t0(1) WHERE c0 NOT NULL;
+  SELECT 1 FROM t0 WHERE (t0.c0 IS FALSE) IS FALSE;
+} {1}
+do_execsql_test index6-15.2 {
+  SELECT 1 FROM t0 WHERE (t0.c0 IS FALSE) BETWEEN FALSE AND TRUE;
+} {1}
+do_execsql_test index6-15.3 {
+  SELECT 1 FROM t0 WHERE TRUE BETWEEN (t0.c0 IS FALSE) AND TRUE;
+} {1}
+do_execsql_test index6-15.4 {
+  SELECT 1 FROM t0 WHERE FALSE BETWEEN FALSE AND (t0.c0 IS FALSE);
+} {1}
+do_execsql_test index6-15.5 {
+  SELECT 1 FROM t0 WHERE (c0 IS FALSE) IN (FALSE);
+} {1}
+
+# 2019-09-03
+# Ticket https://sqlite.org/src/info/767a8cbc6d20bd68
+do_execsql_test index6-16.1 {
+  DROP TABLE t0;
+  CREATE TABLE t0(c0 COLLATE NOCASE, c1);
+  CREATE INDEX i0 ON t0(0) WHERE c0 >= c1;
+  INSERT INTO t0 VALUES('a', 'B');
+  SELECT c1 <= c0, c0 >= c1 FROM t0;
+} {1 0}
+do_execsql_test index6-16.2 {
+  SELECT 2 FROM t0 WHERE c0 >= c1;
+} {}
+do_execsql_test index6-16.3 {
+  SELECT 3 FROM t0 WHERE c1 <= c0;
+} {3}
+
+# 2019-11-02
+# Ticket https://sqlite.org/src/tktview/a9efb42811fa41ee286e8
+db close
+sqlite3 db :memory:
+do_execsql_test index6-17.1 {
+  CREATE TABLE t0(c0);
+  CREATE INDEX i0 ON t0(0) WHERE c0 GLOB c0;
+  INSERT INTO t0 VALUES (0);
+  CREATE UNIQUE INDEX i1 ON t0(0);
+  PRAGMA integrity_check;
+} {ok}
+do_execsql_test index6-17.2 {
+  CREATE UNIQUE INDEX i2 ON t0(0);
+  REPLACE INTO t0 VALUES(0);
+  PRAGMA integrity_check;
+} {ok}
+do_execsql_test index6-17.3 {
+  SELECT COUNT(*) FROM t0 WHERE t0.c0 GLOB t0.c0;
+} {1}
+
+# 2021-05-29
+# Forum https://sqlite.org/forum/forumpost/d813704d7c
+reset_db
+do_execsql_test index6-18.1 {
+  CREATE TABLE t1(a INT, b INT);
+  INSERT INTO t1 VALUES(10,10);
+  CREATE UNIQUE INDEX t1b ON t1(b) WHERE a>NULL;
+  SELECT * FROM t1 WHERE a IS NOT NULL;
+} {10 10}
+
+# 2022-06-09
+# https://sqlite.org/forum/forumpost/c4676c4956
+# Cannot do a scan of a partial index on the left table of a RIGHT JOIN
+# since that will cause extra rows to appear in the output during the
+# right-join no-match loop.  The following testcase is verify using
+# PostgreSQL 14.
+#
+reset_db
+do_execsql_test index6-19.1 {
+  CREATE TABLE t1(a INT, b INT);
+  INSERT INTO t1(a) VALUES(2);
+  CREATE TABLE t2(c INT);
+  CREATE INDEX i0 ON t2(c) WHERE c=3;
+  CREATE TABLE t3(d INT);
+  INSERT INTO t3 VALUES(1);
+}
+do_execsql_test index6-19.2 {
+  SELECT * FROM t2 RIGHT JOIN t3 ON d<>0 LEFT JOIN t1 ON c=3 WHERE t1.a<>0;
+} {}
+
+finish_test
diff --git a/test/index7.test b/test/index7.test
new file mode 100644
index 0000000000000000000000000000000000000000..eeb36bab5cb71574999e083f7668edee17a64e32
--- /dev/null
+++ b/test/index7.test
@@ -0,0 +1,355 @@
+# 2013-11-04
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test cases for partial indices in WITHOUT ROWID tables
+#
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+# Capture the output of a pragma in a TEMP table.
+#
+proc capture_pragma {db tabname sql} {
+  $db eval "DROP TABLE IF EXISTS temp.$tabname"
+  set once 1
+  $db eval $sql x {
+    if {$once} {
+      set once 0
+      set ins "INSERT INTO $tabname VALUES"
+      set crtab "CREATE TEMP TABLE $tabname "
+      set sep "("
+      foreach col $x(*) {
+        append ins ${sep}\$x($col)
+        append crtab ${sep}\"$col\"
+        set sep ,
+      }
+      append ins )
+      append crtab )
+      $db eval $crtab
+    }
+    $db eval $ins
+  }
+}
+
+
+load_static_extension db wholenumber;
+do_test index7-1.1 {
+  # Able to parse and manage partial indices
+  execsql {
+    CREATE TABLE t1(a,b,c PRIMARY KEY) WITHOUT rowid;
+    CREATE INDEX t1a ON t1(a) WHERE a IS NOT NULL;
+    CREATE INDEX t1b ON t1(b) WHERE b>10;
+    CREATE VIRTUAL TABLE nums USING wholenumber;
+    INSERT INTO t1(a,b,c)
+       SELECT CASE WHEN value%3!=0 THEN value END, value, value
+         FROM nums WHERE value<=20;
+    SELECT count(a), count(b) FROM t1;
+    PRAGMA integrity_check;
+  }
+} {14 20 ok}
+
+# (The "partial" column of the PRAGMA index_list output is...)
+# EVIDENCE-OF: R-34457-09668 "1" if the index is a partial index and "0"
+# if not.
+#
+do_test index7-1.1a {
+  capture_pragma db out {PRAGMA index_list(t1)}
+  db eval {SELECT "name", "partial", '|' FROM out ORDER BY "name"}
+} {sqlite_autoindex_t1_1 0 | t1a 1 | t1b 1 |}
+
+# Make sure the count(*) optimization works correctly with
+# partial indices.  Ticket [a5c8ed66cae16243be6] 2013-10-03.
+#
+do_execsql_test index7-1.1.1 {
+  SELECT count(*) FROM t1;
+} {20}
+
+# Error conditions during parsing...
+#
+do_test index7-1.2 {
+  catchsql {
+    CREATE INDEX bad1 ON t1(a,b) WHERE x IS NOT NULL;
+  }
+} {1 {no such column: x}}
+do_test index7-1.3 {
+  catchsql {
+    CREATE INDEX bad1 ON t1(a,b) WHERE EXISTS(SELECT * FROM t1);
+  }
+} {1 {subqueries prohibited in partial index WHERE clauses}}
+do_test index7-1.4 {
+  catchsql {
+    CREATE INDEX bad1 ON t1(a,b) WHERE a!=?1;
+  }
+} {1 {parameters prohibited in partial index WHERE clauses}}
+do_test index7-1.5 {
+  catchsql {
+    CREATE INDEX bad1 ON t1(a,b) WHERE a!=random();
+  }
+} {1 {non-deterministic functions prohibited in partial index WHERE clauses}}
+do_test index7-1.6 {
+  catchsql {
+    CREATE INDEX bad1 ON t1(a,b) WHERE a NOT LIKE 'abc%';
+  }
+} {0 {}}
+do_execsql_test index7-1.7 {
+  INSERT INTO t1(a,b,c)
+     VALUES('abcde',1,101),('abdef',2,102),('xyz',3,103),('abcz',4,104);
+  SELECT c FROM t1 WHERE a NOT LIKE 'abc%' AND a=7 ORDER BY +b;
+} {7}
+do_execsql_test index7-1.7eqp {
+  EXPLAIN QUERY PLAN
+  SELECT b FROM t1 WHERE a NOT LIKE 'abc%' AND a=7 ORDER BY +b;
+} {/SEARCH t1 USING COVERING INDEX bad1 /}
+do_execsql_test index7-1.8 {
+  DELETE FROM t1 WHERE c>=101;
+  DROP INDEX IF EXISTS bad1;
+} {}
+
+do_test index7-1.10 {
+  execsql {
+    ANALYZE;
+    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
+    PRAGMA integrity_check;
+  }
+} {t1 {20 1} t1a {14 1} t1b {10 1} ok}
+
+# STAT1 shows the partial indices have a reduced number of
+# rows.
+#
+do_test index7-1.11 {
+  execsql {
+    UPDATE t1 SET a=b;
+    ANALYZE;
+    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
+    PRAGMA integrity_check;
+  }
+} {t1 {20 1} t1a {20 1} t1b {10 1} ok}
+
+do_test index7-1.11b {
+  execsql {
+    UPDATE t1 SET a=NULL WHERE b%3!=0;
+    UPDATE t1 SET b=b+100;
+    ANALYZE;
+    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
+    PRAGMA integrity_check;
+  }
+} {t1 {20 1} t1a {6 1} t1b {20 1} ok}
+
+do_test index7-1.12 {
+  execsql {
+    UPDATE t1 SET a=CASE WHEN b%3!=0 THEN b END;
+    UPDATE t1 SET b=b-100;
+    ANALYZE;
+    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
+    PRAGMA integrity_check;
+  }
+} {t1 {20 1} t1a {13 1} t1b {10 1} ok}
+
+do_test index7-1.13 {
+  execsql {
+    DELETE FROM t1 WHERE b BETWEEN 8 AND 12;
+    ANALYZE;
+    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
+    PRAGMA integrity_check;
+  }
+} {t1 {15 1} t1a {10 1} t1b {8 1} ok}
+
+do_test index7-1.14 {
+  execsql {
+    REINDEX;
+    ANALYZE;
+    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
+    PRAGMA integrity_check;
+  }
+} {t1 {15 1} t1a {10 1} t1b {8 1} ok}
+
+do_test index7-1.15 {
+  execsql {
+    CREATE INDEX t1c ON t1(c);
+    ANALYZE;
+    SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
+    PRAGMA integrity_check;
+  }
+} {t1 {15 1} t1a {10 1} t1b {8 1} t1c {15 1} ok}
+
+# Queries use partial indices at appropriate times.
+#
+do_test index7-2.1 {
+  execsql {
+    CREATE TABLE t2(a,b PRIMARY KEY) without rowid;
+    INSERT INTO t2(a,b) SELECT value, value FROM nums WHERE value<1000;
+    UPDATE t2 SET a=NULL WHERE b%5==0;
+    CREATE INDEX t2a1 ON t2(a) WHERE a IS NOT NULL;
+    SELECT count(*) FROM t2 WHERE a IS NOT NULL;
+  }
+} {800}
+do_test index7-2.2 {
+  execsql {
+    EXPLAIN QUERY PLAN
+    SELECT * FROM t2 WHERE a=5;
+  }
+} {/(SCAN|SEARCH) t2 USING COVERING INDEX t2a1 /}
+ifcapable stat4 {
+  do_test index7-2.3stat4 {
+    execsql {
+      EXPLAIN QUERY PLAN
+      SELECT * FROM t2 WHERE a IS NOT NULL;
+    }
+  } {/(SCAN|SEARCH) t2 USING COVERING INDEX t2a1 /}
+} else {
+  do_test index7-2.3stat4 {
+    execsql {
+      EXPLAIN QUERY PLAN
+      SELECT * FROM t2 WHERE a IS NOT NULL AND a>0;
+    }
+  } {/(SCAN|SEARCH) t2 USING COVERING INDEX t2a1 /}
+}
+do_test index7-2.4 {
+  execsql {
+    EXPLAIN QUERY PLAN
+    SELECT * FROM t2 WHERE a IS NULL;
+  }
+} {~/INDEX t2a1/}
+
+do_execsql_test index7-2.101 {
+  DROP INDEX t2a1;
+  UPDATE t2 SET a=b, b=b+10000;
+  SELECT b FROM t2 WHERE a=15;
+} {10015}
+do_execsql_test index7-2.102 {
+  CREATE INDEX t2a2 ON t2(a) WHERE a<100 OR a>200;
+  SELECT b FROM t2 WHERE a=15;
+  PRAGMA integrity_check;
+} {10015 ok}
+do_execsql_test index7-2.102eqp {
+  EXPLAIN QUERY PLAN
+  SELECT b FROM t2 WHERE a=15;
+} {~/.*INDEX t2a2.*/}
+do_execsql_test index7-2.103 {
+  SELECT b FROM t2 WHERE a=15 AND a<100;
+} {10015}
+do_execsql_test index7-2.103eqp {
+  EXPLAIN QUERY PLAN
+  SELECT b FROM t2 WHERE a=15 AND a<100;
+} {/.*INDEX t2a2.*/}
+do_execsql_test index7-2.104 {
+  SELECT b FROM t2 WHERE a=515 AND a>200;
+} {10515}
+do_execsql_test index7-2.104eqp {
+  EXPLAIN QUERY PLAN
+  SELECT b FROM t2 WHERE a=515 AND a>200;
+} {/.*INDEX t2a2.*/}
+
+# Partial UNIQUE indices
+#
+do_execsql_test index7-3.1 {
+  CREATE TABLE t3(a,b PRIMARY KEY) without rowid;
+  INSERT INTO t3 SELECT value, value FROM nums WHERE value<200;
+  UPDATE t3 SET a=999 WHERE b%5!=0;
+  CREATE UNIQUE INDEX t3a ON t3(a) WHERE a<>999;
+} {}
+do_test index7-3.2 {
+  # unable to insert a duplicate row a-value that is not 999.
+  catchsql {
+    INSERT INTO t3(a,b) VALUES(150, 'test1');
+  }
+} {1 {UNIQUE constraint failed: t3.a}}
+do_test index7-3.3 {
+  # can insert multiple rows with a==999 because such rows are not
+  # part of the unique index.
+  catchsql {
+    INSERT INTO t3(a,b) VALUES(999, 'test1'), (999, 'test2');
+  }
+} {0 {}}
+do_execsql_test index7-3.4 {
+  SELECT count(*) FROM t3 WHERE a=999;
+} {162}
+integrity_check index7-3.5
+
+do_execsql_test index7-4.0 {
+  VACUUM;
+  PRAGMA integrity_check;
+} {ok}
+
+# Silently ignore database name qualifiers in partial indices.
+#
+do_execsql_test index7-5.0 {
+  CREATE INDEX t3b ON t3(b) WHERE xyzzy.t3.b BETWEEN 5 AND 10;
+                               /* ^^^^^-- ignored */
+  ANALYZE;
+  SELECT count(*) FROM t3 WHERE t3.b BETWEEN 5 AND 10;
+  SELECT stat+0 FROM sqlite_stat1 WHERE idx='t3b';
+} {6 6}
+
+# Verify that the problem identified by ticket [98d973b8f5] has been fixed.
+#
+do_execsql_test index7-6.1 {
+  CREATE TABLE t5(a, b);
+  CREATE TABLE t4(c, d);
+  INSERT INTO t5 VALUES(1, 'xyz');
+  INSERT INTO t4 VALUES('abc', 'not xyz');
+  SELECT * FROM (SELECT * FROM t5 WHERE a=1 AND b='xyz'), t4 WHERE c='abc';
+} {
+  1 xyz abc {not xyz}
+}
+do_execsql_test index7-6.2 {
+  CREATE INDEX i4 ON t4(c) WHERE d='xyz';
+  SELECT * FROM (SELECT * FROM t5 WHERE a=1 AND b='xyz'), t4 WHERE c='abc';
+} {
+  1 xyz abc {not xyz}
+}
+do_execsql_test index7-6.3 {
+  CREATE VIEW v4 AS SELECT * FROM t4;
+  INSERT INTO t4 VALUES('def', 'xyz');
+  SELECT * FROM v4 WHERE d='xyz' AND c='def'
+} {
+  def xyz
+}
+do_eqp_test index7-6.4 {
+  SELECT * FROM v4 WHERE d='xyz' AND c='def'
+} {SEARCH t4 USING INDEX i4 (c=?)}
+
+do_catchsql_test index7-6.5 {
+  CREATE INDEX t5a ON t5(a) WHERE a=#1;
+} {1 {near "#1": syntax error}}
+
+do_execsql_test index7-7.0 {
+  CREATE TABLE t6(x, y);
+  INSERT INTO t6 VALUES(1, 1);
+  INSERT INTO t6 VALUES(0, 0);
+  SELECT * FROM t6 WHERE y IS TRUE ORDER BY x;
+} {1 1}
+
+do_execsql_test index7-7.1 {
+  CREATE INDEX i6 ON t6(x) WHERE y IS NOT TRUE;
+  SELECT * FROM t6 WHERE y IS TRUE ORDER BY x;
+} {1 1}
+
+# 2020-05-27.  tag-20200527-1.
+# Incomplete stat1 information on a table with few rows should still use the
+# index.
+reset_db
+do_execsql_test index7-8.1 {
+  CREATE TABLE t1(x INTEGER PRIMARY KEY, y);
+  CREATE INDEX t1y ON t1(y) WHERE y IS NOT NULL;
+  INSERT INTO t1(x) VALUES(1),(2);
+  ANALYZE;
+  EXPLAIN QUERY PLAN SELECT 1 FROM t1 WHERE y=5;
+} {/SEARCH t1 USING COVERING INDEX t1y/}
+
+
+finish_test
diff --git a/test/index8.test b/test/index8.test
new file mode 100644
index 0000000000000000000000000000000000000000..41ccf4bbcfc4919c4a442d1ffa42b12edcd13a81
--- /dev/null
+++ b/test/index8.test
@@ -0,0 +1,60 @@
+# 2016-07-27
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test cases for ORDER BY and LIMIT on an index scan.
+#
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Performance regression reported at
+# http://www.mail-archive.com/sqlite-users@mailinglists.sqlite.org/msg98615.html
+#
+# Caused by the ORDER BY LIMIT optionation for check-in
+# https://sqlite.org/src/info/bf46179d44843769
+#
+# Fixed on approximately 2016-07-27 by changes that compute a better score
+# for index scans by taking into account WHERE clause constraints that can
+# be handled by the index and do not require a table lookup.
+#
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a,b,c,d);
+  WITH RECURSIVE c(x) AS (VALUES(0) UNION ALL SELECT x+1 FROM c WHERE x<100)
+  INSERT INTO t1(a,b,c,d)
+     SELECT x/10, x%10, x%19, x FROM c;
+  CREATE INDEX t1abc ON t1(a,b,c);
+  SELECT * FROM t1 WHERE c=4 ORDER BY a, b LIMIT 2;
+} {0 4 4 4 2 3 4 23}
+
+# Prior to the fix, the following EQP would show a table scan and a sort
+# rather than an index scan.
+#
+do_execsql_test 1.0eqp {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE c=4 ORDER BY a, b LIMIT 2;
+} {/SCAN t1 USING INDEX t1abc/}
+
+# If we change the index so that it no longer covers the WHERE clause,
+# then we should (correctly) revert to using a table scan.
+#
+do_execsql_test 1.1 {
+  DROP INDEX t1abc;
+  CREATE INDEX t1abd ON t1(a,b,d);
+  SELECT * FROM t1 WHERE c=4 ORDER BY a, b LIMIT 2;
+} {0 4 4 4 2 3 4 23}
+do_execsql_test 1.1eqp {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE c=4 ORDER BY a, b LIMIT 2;
+} {~/USING INDEX/}
+
+
+finish_test
diff --git a/test/index9.test b/test/index9.test
new file mode 100644
index 0000000000000000000000000000000000000000..00e99a8e5c6dc963788c055df67623324fbbea7d
--- /dev/null
+++ b/test/index9.test
@@ -0,0 +1,96 @@
+# 2017 Jun 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test that partial indexes work with bound variables.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix index9
+
+proc sqluses {sql} {
+  array unset ::T
+  uplevel [list db eval "EXPLAIN $sql" a {
+    if {$a(opcode)=="OpenRead"} { set ::T($a(p2)) 1 }
+  }]
+
+  set in [join [array names ::T] ,]
+  db eval "SELECT name FROM sqlite_master WHERE rootpage IN ($in) ORDER BY 1"
+}
+
+proc do_sqluses_test {tn sql objects} {
+  uplevel [list do_test $tn [list sqluses $sql] $objects]
+}
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(x, y);
+  CREATE INDEX t1x ON t1(x) WHERE y=45;
+}
+unset -nocomplain a
+set y [expr 45]
+do_sqluses_test 1.1 { SELECT * FROM t1 WHERE x=? AND y=$y } {t1 t1x}
+set y [expr 45.1]
+do_sqluses_test 1.2 { SELECT * FROM t1 WHERE x=? AND y=$y } {t1}
+set y [expr 44]
+do_sqluses_test 1.3 { SELECT * FROM t1 WHERE x=? AND y=$y } {t1}
+unset -nocomplain y
+do_sqluses_test 1.4 { SELECT * FROM t1 WHERE x=? AND y=$y } {t1}
+set y [string range "45" 0 end]
+do_sqluses_test 1.5 { SELECT * FROM t1 WHERE x=? AND y=$y } {t1}
+
+do_execsql_test 2.0 {
+  CREATE INDEX t1x2 ON t1(x) WHERE y=-20111000111
+}
+do_sqluses_test 2.1 { SELECT * FROM t1 WHERE y=$y ORDER BY x } {t1}
+set y [expr -20111000111]
+do_sqluses_test 2.2 { SELECT * FROM t1 WHERE y=$y ORDER BY x } {t1 t1x2}
+set y [expr -20111000110]
+do_sqluses_test 2.3 { SELECT * FROM t1 WHERE y=$y ORDER BY x } {t1}
+set y [expr -20111000112]
+do_sqluses_test 2.4 { SELECT * FROM t1 WHERE y=$y ORDER BY x } {t1}
+
+do_execsql_test 3.0 {
+  CREATE INDEX t1x3 ON t1(x) WHERE y=9223372036854775807
+}
+set y [expr 9223372036854775807]
+do_sqluses_test 3.1 { SELECT * FROM t1 WHERE y=$y ORDER BY x } {t1 t1x3}
+set y [expr 9223372036854775808]
+do_sqluses_test 3.2 { SELECT * FROM t1 WHERE y=$y ORDER BY x } {t1}
+set y [expr 9223372036854775806]
+do_sqluses_test 3.3 { SELECT * FROM t1 WHERE y=$y ORDER BY x } {t1}
+db cache flush
+sqlite3_db_config db QPSG 1
+set y [expr 9223372036854775807]
+do_sqluses_test 3.4 { SELECT * FROM t1 WHERE y=$y ORDER BY x } {t1}
+set y [expr 9223372036854775808]
+do_sqluses_test 3.5 { SELECT * FROM t1 WHERE y=$y ORDER BY x } {t1}
+sqlite3_db_config db QPSG 0
+db cache flush
+
+
+do_execsql_test 4.0 {
+  CREATE INDEX t1x4 ON t1(x) WHERE y=-9223372036854775808
+}
+set y [expr -9223372036854775808]
+do_sqluses_test 4.1 { SELECT * FROM t1 WHERE y=$y ORDER BY x } {t1 t1x4}
+set y [expr -9223372036854775807]
+do_sqluses_test 4.2 { SELECT * FROM t1 WHERE y=$y ORDER BY x } {t1}
+set y [expr -9223372036854775809]
+do_sqluses_test 4.3 { SELECT * FROM t1 WHERE y=$y ORDER BY x } {t1}
+set y [expr -9223372036854775808]
+do_sqluses_test 4.4 { SELECT * FROM t1 WHERE $y=y ORDER BY x } {t1 t1x4}
+db cache flush
+sqlite3_db_config db QPSG 1
+do_sqluses_test 4.5 { SELECT * FROM t1 WHERE $y=y ORDER BY x } {t1}
+sqlite3_db_config db QPSG 0
+db cache flush
+
+finish_test
diff --git a/test/indexA.test b/test/indexA.test
new file mode 100644
index 0000000000000000000000000000000000000000..518d7e18adb6d5fdd330b3f14fd4ca28c053ecf5
--- /dev/null
+++ b/test/indexA.test
@@ -0,0 +1,350 @@
+# 2023 September 23
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix indexA
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a TEXT, b, c);
+  CREATE INDEX i1 ON t1(b, c) WHERE a='abc';
+  INSERT INTO t1 VALUES('abc', 1, 2);
+}
+
+do_execsql_test 1.1 {
+  SELECT * FROM t1 WHERE a='abc'
+} {abc 1 2}
+
+do_eqp_test 1.2 {
+  SELECT * FROM t1 WHERE a='abc'
+} {USING COVERING INDEX i1}
+
+do_execsql_test 1.3 {
+  CREATE INDEX i2 ON t1(b, c) WHERE a=5;
+  INSERT INTO t1 VALUES(5, 4, 3);
+
+  SELECT a, typeof(a), b, c FROM t1 WHERE a=5;
+} {5 text 4 3}
+
+do_execsql_test 1.4 {
+  CREATE TABLE t2(x);
+  INSERT INTO t2 VALUES('v');
+}
+
+do_execsql_test 1.5 {
+  SELECT x, a, b, c FROM t2 LEFT JOIN t1 ON (a=5 AND b=x)
+} {v {} {} {}}
+
+do_execsql_test 1.6 {
+  SELECT x, a, b, c FROM t2 RIGHT JOIN t1 ON (t1.a=5 AND t1.b=t2.x)
+} {{} abc 1 2   {} 5 4 3}
+
+do_eqp_test 1.7 {
+  SELECT x, a, b, c FROM t2 RIGHT JOIN t1 ON (t1.a=5 AND t1.b=t2.x)
+} {USING INDEX i2}
+
+#-------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 2.0 {
+  CREATE TABLE x1(a TEXT, b, c);
+  INSERT INTO x1 VALUES('2', 'two', 'ii');
+  INSERT INTO x1 VALUES('2.0', 'twopointoh', 'ii.0');
+
+  CREATE TABLE x2(a NUMERIC, b, c);
+  INSERT INTO x2 VALUES('2', 'two', 'ii');
+  INSERT INTO x2 VALUES('2.0', 'twopointoh', 'ii.0');
+
+  CREATE TABLE x3(a REAL, b, c);
+  INSERT INTO x3 VALUES('2', 'two', 'ii');
+  INSERT INTO x3 VALUES('2.0', 'twopointoh', 'ii.0');
+}
+
+foreach {tn idx} {
+  0 {
+  }
+  1 {
+    CREATE INDEX i1 ON x1(b, c) WHERE a=2;
+    CREATE INDEX i2 ON x2(b, c) WHERE a=2;
+    CREATE INDEX i3 ON x3(b, c) WHERE a=2;
+  }
+  2 {
+    CREATE INDEX i1 ON x1(b, c) WHERE a=2.0;
+    CREATE INDEX i2 ON x2(b, c) WHERE a=2.0;
+    CREATE INDEX i3 ON x3(b, c) WHERE a=2.0;
+  }
+  3 {
+    CREATE INDEX i1 ON x1(b, c) WHERE a='2.0';
+    CREATE INDEX i2 ON x2(b, c) WHERE a='2.0';
+    CREATE INDEX i3 ON x3(b, c) WHERE a='2.0';
+  }
+  4 {
+    CREATE INDEX i1 ON x1(b, c) WHERE a='2';
+    CREATE INDEX i2 ON x2(b, c) WHERE a='2';
+    CREATE INDEX i3 ON x3(b, c) WHERE a='2';
+  }
+} {
+  execsql { DROP INDEX IF EXISTS i1 }
+  execsql { DROP INDEX IF EXISTS i2 }
+  execsql { DROP INDEX IF EXISTS i3 }
+
+  execsql $idx
+  do_execsql_test 2.1.$tn.1 {
+    SELECT *, typeof(a) FROM x1 WHERE a=2
+  } {2 two ii text}
+  do_execsql_test 2.1.$tn.2 {
+    SELECT *, typeof(a) FROM x1 WHERE a=2.0
+  } {2.0 twopointoh ii.0 text}
+  do_execsql_test 2.1.$tn.3 {
+    SELECT *, typeof(a) FROM x1 WHERE a='2'
+  } {2 two ii text}
+  do_execsql_test 2.1.$tn.4 {
+    SELECT *, typeof(a) FROM x1 WHERE a='2.0'
+  } {2.0 twopointoh ii.0 text}
+
+  do_execsql_test 2.1.$tn.5 {
+    SELECT *, typeof(a) FROM x2 WHERE a=2
+  } {2 two ii integer 2 twopointoh ii.0 integer}
+  do_execsql_test 2.1.$tn.6 {
+    SELECT *, typeof(a) FROM x2 WHERE a=2.0
+  } {2 two ii integer 2 twopointoh ii.0 integer}
+  do_execsql_test 2.1.$tn.7 {
+    SELECT *, typeof(a) FROM x2 WHERE a='2'
+  } {2 two ii integer 2 twopointoh ii.0 integer}
+  do_execsql_test 2.1.$tn.8 {
+    SELECT *, typeof(a) FROM x2 WHERE a='2.0'
+  } {2 two ii integer 2 twopointoh ii.0 integer}
+
+  do_execsql_test 2.1.$tn.9 {
+    SELECT *, typeof(a) FROM x3 WHERE a=2
+  } {2.0 two ii real 2.0 twopointoh ii.0 real}
+  do_execsql_test 2.1.$tn.10 {
+    SELECT *, typeof(a) FROM x3 WHERE a=2.0
+  } {2.0 two ii real 2.0 twopointoh ii.0 real}
+  do_execsql_test 2.1.$tn.11 {
+    SELECT *, typeof(a) FROM x3 WHERE a='2'
+  } {2.0 two ii real 2.0 twopointoh ii.0 real}
+  do_execsql_test 2.1.$tn.12 {
+    SELECT *, typeof(a) FROM x3 WHERE a='2.0'
+  } {2.0 two ii real 2.0 twopointoh ii.0 real}
+
+}
+
+reset_db
+do_execsql_test 3.0 {
+  CREATE TABLE x1(a TEXT, d PRIMARY KEY, b, c) WITHOUT ROWID;
+  INSERT INTO x1 VALUES('2', 1, 'two', 'ii');
+  INSERT INTO x1 VALUES('2.0', 2, 'twopointoh', 'ii.0');
+
+  CREATE TABLE x2(a NUMERIC, b, c, d PRIMARY KEY) WITHOUT ROWID;
+  INSERT INTO x2 VALUES('2', 'two', 'ii', 1);
+  INSERT INTO x2 VALUES('2.0', 'twopointoh', 'ii.0', 2);
+
+  CREATE TABLE x3(d PRIMARY KEY, a REAL, b, c) WITHOUT ROWID;
+  INSERT INTO x3 VALUES(34, '2', 'two', 'ii');
+  INSERT INTO x3 VALUES(35, '2.0', 'twopointoh', 'ii.0');
+}
+
+foreach {tn idx} {
+  0 {
+  }
+  1 {
+    CREATE INDEX i1 ON x1(b, c) WHERE a=2;
+    CREATE INDEX i2 ON x2(b, c) WHERE a=2;
+    CREATE INDEX i3 ON x3(b, c) WHERE a=2;
+  }
+  2 {
+    CREATE INDEX i1 ON x1(b, c) WHERE a=2.0;
+    CREATE INDEX i2 ON x2(b, c) WHERE a=2.0;
+    CREATE INDEX i3 ON x3(b, c) WHERE a=2.0;
+  }
+  3 {
+    CREATE INDEX i1 ON x1(b, c) WHERE a='2.0';
+    CREATE INDEX i2 ON x2(b, c) WHERE a='2.0';
+    CREATE INDEX i3 ON x3(b, c) WHERE a='2.0';
+  }
+  4 {
+    CREATE INDEX i1 ON x1(b, c) WHERE a='2';
+    CREATE INDEX i2 ON x2(b, c) WHERE a='2';
+    CREATE INDEX i3 ON x3(b, c) WHERE a='2';
+  }
+} {
+  execsql { DROP INDEX IF EXISTS i1 }
+  execsql { DROP INDEX IF EXISTS i2 }
+  execsql { DROP INDEX IF EXISTS i3 }
+
+  execsql $idx
+  do_execsql_test 3.1.$tn.1 {
+    SELECT a, b, c, typeof(a) FROM x1 WHERE a=2
+  } {2 two ii text}
+  do_execsql_test 3.1.$tn.2 {
+    SELECT a, b, c, typeof(a) FROM x1 WHERE a=2.0
+  } {2.0 twopointoh ii.0 text}
+  do_execsql_test 3.1.$tn.3 {
+    SELECT a, b, c, typeof(a) FROM x1 WHERE a='2'
+  } {2 two ii text}
+  do_execsql_test 3.1.$tn.4 {
+    SELECT a, b, c, typeof(a) FROM x1 WHERE a='2.0'
+  } {2.0 twopointoh ii.0 text}
+
+  do_execsql_test 3.1.$tn.5 {
+    SELECT a, b, c, typeof(a) FROM x2 WHERE a=2
+  } {2 two ii integer 2 twopointoh ii.0 integer}
+  do_execsql_test 3.1.$tn.6 {
+    SELECT a, b, c, typeof(a) FROM x2 WHERE a=2.0
+  } {2 two ii integer 2 twopointoh ii.0 integer}
+  do_execsql_test 3.1.$tn.7 {
+    SELECT a, b, c, typeof(a) FROM x2 WHERE a='2'
+  } {2 two ii integer 2 twopointoh ii.0 integer}
+  do_execsql_test 3.1.$tn.8 {
+    SELECT a, b, c, typeof(a) FROM x2 WHERE a='2.0'
+  } {2 two ii integer 2 twopointoh ii.0 integer}
+
+  do_execsql_test 3.1.$tn.9 {
+    SELECT a, b, c, typeof(a) FROM x3 WHERE a=2
+  } {2.0 two ii real 2.0 twopointoh ii.0 real}
+  do_execsql_test 3.1.$tn.10 {
+    SELECT a, b, c, typeof(a) FROM x3 WHERE a=2.0
+  } {2.0 two ii real 2.0 twopointoh ii.0 real}
+  do_execsql_test 3.1.$tn.11 {
+    SELECT a, b, c, typeof(a) FROM x3 WHERE a='2'
+  } {2.0 two ii real 2.0 twopointoh ii.0 real}
+  do_execsql_test 3.1.$tn.12 {
+    SELECT a, b, c, typeof(a) FROM x3 WHERE a='2.0'
+  } {2.0 two ii real 2.0 twopointoh ii.0 real}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 4.0 {
+  CREATE TABLE t2(a INTEGER, b TEXT);
+  INSERT INTO t2 VALUES(1, 'two');
+  INSERT INTO t2 VALUES(2, 'two');
+  INSERT INTO t2 VALUES(3, 'two');
+  INSERT INTO t2 VALUES(1, 'three');
+  INSERT INTO t2 VALUES(2, 'three');
+  INSERT INTO t2 VALUES(3, 'three');
+
+  CREATE INDEX t2a_two ON t2(a) WHERE b='two';
+}
+
+# explain_i { SELECT sum(a), b FROM t2 WHERE b='two' }
+do_execsql_test 4.1.1 {
+  SELECT sum(a), b FROM t2 WHERE b='two'
+} {6 two}
+do_eqp_test 4.1.2 {
+  SELECT sum(a), b FROM t2 WHERE b='two'
+} {USING COVERING INDEX t2a_two}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 5.0 {
+  CREATE TABLE t1(a INTEGER PRIMQRY KEY, b, c);
+}
+do_catchsql_test 5.1 {
+  CREATE INDEX ex1 ON t1(c) WHERE b IS 'abc' COLLATE g;
+} {1 {no such collation sequence: g}}
+
+proc xyz {lhs rhs} {
+  return [string compare $lhs $rhs]
+}
+db collate xyz xyz
+do_execsql_test 5.2 {
+  CREATE INDEX ex1 ON t1(c) WHERE b IS 'abc' COLLATE xyz;
+}
+db close
+sqlite3 db test.db
+do_execsql_test 5.3 {
+  SELECT * FROM t1
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 6.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+  CREATE TABLE t2(x INTEGER PRIMARY KEY, y INTEGER, z INTEGER);
+  INSERT INTO t1 VALUES(1, 1, 1);
+  INSERT INTO t1 VALUES(2, 1, 2);
+  INSERT INTO t2 VALUES(1, 5, 1);
+  INSERT INTO t2 VALUES(2, 5, 2);
+
+  CREATE INDEX t2z ON t2(z) WHERE y=5;
+}
+
+do_execsql_test 6.1 {
+  ANALYZE;
+  UPDATE sqlite_stat1 SET stat = '50 1' WHERE idx='t2z';
+  UPDATE sqlite_stat1 SET stat = '50' WHERE tbl='t2' AND idx IS NULL;
+  UPDATE sqlite_stat1 SET stat = '5000' WHERE tbl='t1' AND idx IS NULL;
+  ANALYZE sqlite_schema;
+}
+
+do_execsql_test 6.2 {
+  SELECT * FROM t1, t2 WHERE b=1 AND z=c AND y=5;
+} {
+  1 1 1  1 5 1
+  2 1 2  2 5 2
+}
+
+do_eqp_test 6.3 {
+  SELECT * FROM t1, t2 WHERE b=1 AND z=c AND y=5;
+} {BLOOM FILTER ON t2}
+
+do_execsql_test 6.4 {
+  SELECT * FROM t1 LEFT JOIN t2 ON (y=5) WHERE b=1 AND z IS c;
+} {
+  1 1 1  1 5 1
+  2 1 2  2 5 2
+}
+
+do_eqp_test 6.5 {
+  SELECT * FROM t1 LEFT JOIN t2 ON (y=5) WHERE b=1 AND z IS c;
+} {BLOOM FILTER ON t2}
+
+do_execsql_test 6.6 {
+  CREATE INDEX t2yz ON t2(y, z) WHERE y=5;
+}
+
+do_execsql_test 6.7 {
+  SELECT * FROM t1 LEFT JOIN t2 ON (y=5) WHERE b=1 AND z IS c;
+} {
+  1 1 1  1 5 1
+  2 1 2  2 5 2
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 7.0 {
+  CREATE TABLE t1(i INTEGER PRIMARY KEY, b TEXT, c TEXT);
+  CREATE INDEX i1 ON t1(c) WHERE b='abc' AND i=5;
+  INSERT INTO t1 VALUES(5, 'abc', 'xyz');
+  SELECT * FROM t1 INDEXED BY i1 WHERE b='abc' AND i=5 ORDER BY c;
+} {5 abc xyz}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 8.0 {
+  CREATE TABLE t1(a, b, c);
+  CREATE INDEX ex2 ON t1(a, 4);
+  CREATE INDEX ex1 ON t1(a) WHERE 4=b;
+  INSERT INTO t1 VALUES(1, 4, 1);
+  INSERT INTO t1 VALUES(1, 5, 1);
+  INSERT INTO t1 VALUES(2, 4, 2);
+}
+do_execsql_test 8.1 {
+  SELECT * FROM t1 WHERE b=4;
+} {
+  1 4 1  2 4 2
+}
+
+finish_test
diff --git a/test/indexedby.test b/test/indexedby.test
new file mode 100644
index 0000000000000000000000000000000000000000..6a371112b33d08b1b6e453c3b667cb49b105b153
--- /dev/null
+++ b/test/indexedby.test
@@ -0,0 +1,385 @@
+# 2008-10-04
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix indexedby
+
+# Create a schema with some indexes.
+#
+do_test indexedby-1.1 {
+  execsql {
+    CREATE TABLE t1(a, b);
+    CREATE INDEX i1 ON t1(a);
+    CREATE INDEX i2 ON t1(b);
+
+    CREATE TABLE t2(c, d);
+    CREATE INDEX i3 ON t2(c);
+    CREATE INDEX i4 ON t2(d);
+
+    CREATE TABLE t3(e PRIMARY KEY, f);
+
+    CREATE VIEW v1 AS SELECT * FROM t1;
+  }
+} {}
+
+# Explain Query Plan
+#
+proc EQP {sql} {
+  uplevel "execsql {EXPLAIN QUERY PLAN $sql}"
+}
+
+# These tests are to check that "EXPLAIN QUERY PLAN" is working as expected.
+#
+do_eqp_test indexedby-1.2 {
+  select * from t1 WHERE a = 10; 
+} {SEARCH t1 USING INDEX i1 (a=?)}
+do_eqp_test indexedby-1.3 {
+  select * from t1 ; 
+} {SCAN t1}
+do_eqp_test indexedby-1.4 {
+  select * from t1, t2 WHERE c = 10; 
+} {
+  QUERY PLAN
+  |--SEARCH t2 USING INDEX i3 (c=?)
+  `--SCAN t1
+}
+
+# Parser tests. Test that an INDEXED BY or NOT INDEX clause can be 
+# attached to a table in the FROM clause, but not to a sub-select or
+# SQL view. Also test that specifying an index that does not exist or
+# is attached to a different table is detected as an error.
+#
+# X-EVIDENCE-OF: R-07004-11522 -- syntax diagram qualified-table-name
+# 
+# EVIDENCE-OF: R-58230-57098 The "INDEXED BY index-name" phrase
+# specifies that the named index must be used in order to look up values
+# on the preceding table.
+#
+do_test indexedby-2.1 {
+  execsql { SELECT * FROM t1 NOT INDEXED WHERE a = 'one' AND b = 'two'}
+} {}
+do_test indexedby-2.1b {
+  execsql { SELECT * FROM main.t1 NOT INDEXED WHERE a = 'one' AND b = 'two'}
+} {}
+do_test indexedby-2.2 {
+  execsql { SELECT * FROM t1 INDEXED BY i1 WHERE a = 'one' AND b = 'two'}
+} {}
+do_test indexedby-2.2b {
+  execsql { SELECT * FROM main.t1 INDEXED BY i1 WHERE a = 'one' AND b = 'two'}
+} {}
+do_test indexedby-2.3 {
+  execsql { SELECT * FROM t1 INDEXED BY i2 WHERE a = 'one' AND b = 'two'}
+} {}
+# EVIDENCE-OF: R-44699-55558 The INDEXED BY clause does not give the
+# optimizer hints about which index to use; it gives the optimizer a
+# requirement of which index to use.
+# EVIDENCE-OF: R-15800-25719 If index-name does not exist or cannot be
+# used for the query, then the preparation of the SQL statement fails.
+#
+do_test indexedby-2.4 {
+  catchsql { SELECT * FROM t1 INDEXED BY i3 WHERE a = 'one' AND b = 'two'}
+} {1 {no such index: i3}}
+
+# EVIDENCE-OF: R-05301-32681 If the query optimizer is unable to use the
+# index specified by the INDEXED BY clause, then the query will fail
+# with an error.
+do_test indexedby-2.4.1 {
+  catchsql { SELECT b FROM t1 INDEXED BY i1 WHERE b = 'two' }
+} {0 {}}
+
+do_test indexedby-2.5 {
+  catchsql { SELECT * FROM t1 INDEXED BY i5 WHERE a = 'one' AND b = 'two'}
+} {1 {no such index: i5}}
+do_test indexedby-2.6 {
+  catchsql { SELECT * FROM t1 INDEXED BY WHERE a = 'one' AND b = 'two'}
+} {1 {near "WHERE": syntax error}}
+do_test indexedby-2.7 {
+  catchsql { SELECT * FROM v1 INDEXED BY i1 WHERE a = 'one' }
+} {1 {no such index: i1}}
+
+
+# Tests for single table cases.
+#
+# EVIDENCE-OF: R-37002-28871 The "NOT INDEXED" clause specifies that no
+# index shall be used when accessing the preceding table, including
+# implied indices create by UNIQUE and PRIMARY KEY constraints. However,
+# the rowid can still be used to look up entries even when "NOT INDEXED"
+# is specified.
+#
+do_eqp_test indexedby-3.1 {
+  SELECT * FROM t1 WHERE a = 'one' AND b = 'two'
+} {/SEARCH t1 USING INDEX/}
+do_eqp_test indexedby-3.1.1 {
+  SELECT * FROM t1 NOT INDEXED WHERE a = 'one' AND b = 'two'
+} {SCAN t1}
+do_eqp_test indexedby-3.1.2 {
+  SELECT * FROM t1 NOT INDEXED WHERE rowid=1
+} {/SEARCH t1 USING INTEGER PRIMARY KEY .rowid=/}
+
+
+do_eqp_test indexedby-3.2 {
+  SELECT * FROM t1 INDEXED BY i1 WHERE a = 'one' AND b = 'two'
+} {SEARCH t1 USING INDEX i1 (a=?)}
+do_eqp_test indexedby-3.3 {
+  SELECT * FROM t1 INDEXED BY i2 WHERE a = 'one' AND b = 'two'
+} {SEARCH t1 USING INDEX i2 (b=?)}
+do_test indexedby-3.4 {
+  catchsql { SELECT * FROM t1 INDEXED BY i2 WHERE a = 'one' }
+} {0 {}}
+do_test indexedby-3.5 {
+  catchsql { SELECT * FROM t1 INDEXED BY i2 ORDER BY a }
+} {0 {}}
+do_test indexedby-3.6 {
+  catchsql { SELECT * FROM t1 INDEXED BY i1 WHERE a = 'one' }
+} {0 {}}
+do_test indexedby-3.7 {
+  catchsql { SELECT * FROM t1 INDEXED BY i1 ORDER BY a }
+} {0 {}}
+
+do_eqp_test indexedby-3.8 {
+  SELECT * FROM t3 INDEXED BY sqlite_autoindex_t3_1 ORDER BY e 
+} {SCAN t3 USING INDEX sqlite_autoindex_t3_1}
+do_eqp_test indexedby-3.9 {
+  SELECT * FROM t3 INDEXED BY sqlite_autoindex_t3_1 WHERE e = 10 
+} {SEARCH t3 USING INDEX sqlite_autoindex_t3_1 (e=?)}
+do_test indexedby-3.10 {
+  catchsql { SELECT * FROM t3 INDEXED BY sqlite_autoindex_t3_1 WHERE f = 10 }
+} {0 {}}
+do_test indexedby-3.11 {
+  catchsql { SELECT * FROM t3 INDEXED BY sqlite_autoindex_t3_2 WHERE f = 10 }
+} {1 {no such index: sqlite_autoindex_t3_2}}
+
+# Tests for multiple table cases.
+#
+do_eqp_test indexedby-4.1 {
+  SELECT * FROM t1, t2 WHERE a = c 
+} {
+  QUERY PLAN
+  |--SCAN t1
+  `--SEARCH t2 USING INDEX i3 (c=?)
+}
+do_eqp_test indexedby-4.2 {
+  SELECT * FROM t1 INDEXED BY i1, t2 WHERE a = c 
+} {
+  QUERY PLAN
+  |--SCAN t1 USING INDEX i1
+  `--SEARCH t2 USING INDEX i3 (c=?)
+}
+do_test indexedby-4.3 {
+  catchsql {
+    SELECT * FROM t1 INDEXED BY i1, t2 INDEXED BY i3 WHERE a=c
+  }
+} {0 {}}
+do_test indexedby-4.4 {
+  catchsql {
+    SELECT * FROM t2 INDEXED BY i3, t1 INDEXED BY i1 WHERE a=c
+  }
+} {0 {}}
+
+# Test embedding an INDEXED BY in a CREATE VIEW statement. This block
+# also tests that nothing bad happens if an index refered to by
+# a CREATE VIEW statement is dropped and recreated.
+#
+do_execsql_test indexedby-5.1 {
+  CREATE VIEW v2 AS SELECT * FROM t1 INDEXED BY i1 WHERE a > 5;
+  EXPLAIN QUERY PLAN SELECT * FROM v2 
+} {/*SEARCH t1 USING INDEX i1 (a>?)*/}
+do_execsql_test indexedby-5.2 {
+  EXPLAIN QUERY PLAN SELECT * FROM v2 WHERE b = 10 
+} {/*SEARCH t1 USING INDEX i1 (a>?)*/}
+do_test indexedby-5.3 {
+  execsql { DROP INDEX i1 }
+  catchsql { SELECT * FROM v2 }
+} {1 {no such index: i1}}
+do_test indexedby-5.4 {
+  # Recreate index i1 in such a way as it cannot be used by the view query.
+  execsql { CREATE INDEX i1 ON t1(b) }
+  catchsql { SELECT * FROM v2 }
+} {0 {}}
+do_test indexedby-5.5 {
+  # Drop and recreate index i1 again. This time, create it so that it can
+  # be used by the query.
+  execsql { DROP INDEX i1 ; CREATE INDEX i1 ON t1(a) }
+  catchsql { SELECT * FROM v2 }
+} {0 {}}
+
+# Test that "NOT INDEXED" may use the rowid index, but not others.
+# 
+do_eqp_test indexedby-6.1 {
+  SELECT * FROM t1 WHERE b = 10 ORDER BY rowid 
+} {SEARCH t1 USING INDEX i2 (b=?)}
+do_eqp_test indexedby-6.2 {
+  SELECT * FROM t1 NOT INDEXED WHERE b = 10 ORDER BY rowid 
+} {SCAN t1}
+
+# EVIDENCE-OF: R-40297-14464 The INDEXED BY phrase forces the SQLite
+# query planner to use a particular named index on a DELETE, SELECT, or
+# UPDATE statement.
+#
+# Test that "INDEXED BY" can be used in a DELETE statement.
+# 
+do_eqp_test indexedby-7.1 {
+  DELETE FROM t1 WHERE a = 5 
+} {SEARCH t1 USING INDEX i1 (a=?)}
+do_eqp_test indexedby-7.2 {
+  DELETE FROM t1 NOT INDEXED WHERE a = 5 
+} {SCAN t1}
+do_eqp_test indexedby-7.3 {
+  DELETE FROM t1 INDEXED BY i1 WHERE a = 5 
+} {SEARCH t1 USING INDEX i1 (a=?)}
+do_eqp_test indexedby-7.4 {
+  DELETE FROM t1 INDEXED BY i1 WHERE a = 5 AND b = 10
+} {SEARCH t1 USING INDEX i1 (a=?)}
+do_eqp_test indexedby-7.5 {
+  DELETE FROM t1 INDEXED BY i2 WHERE a = 5 AND b = 10
+} {SEARCH t1 USING INDEX i2 (b=?)}
+do_test indexedby-7.6 {
+  catchsql { DELETE FROM t1 INDEXED BY i2 WHERE a = 5}
+} {0 {}}
+
+# Test that "INDEXED BY" can be used in an UPDATE statement.
+# 
+do_eqp_test indexedby-8.1 {
+  UPDATE t1 SET rowid=rowid+1 WHERE a = 5 
+} {SEARCH t1 USING COVERING INDEX i1 (a=?)}
+do_eqp_test indexedby-8.2 {
+  UPDATE t1 NOT INDEXED SET rowid=rowid+1 WHERE a = 5 
+} {SCAN t1}
+do_eqp_test indexedby-8.3 {
+  UPDATE t1 INDEXED BY i1 SET rowid=rowid+1 WHERE a = 5 
+} {SEARCH t1 USING COVERING INDEX i1 (a=?)}
+do_eqp_test indexedby-8.4 {
+  UPDATE t1 INDEXED BY i1 SET rowid=rowid+1 WHERE a = 5 AND b = 10
+} {SEARCH t1 USING INDEX i1 (a=?)}
+do_eqp_test indexedby-8.5 {
+  UPDATE t1 INDEXED BY i2 SET rowid=rowid+1 WHERE a = 5 AND b = 10
+} {SEARCH t1 USING INDEX i2 (b=?)}
+do_test indexedby-8.6 {
+  catchsql { UPDATE t1 INDEXED BY i2 SET rowid=rowid+1 WHERE a = 5}
+} {0 {}}
+
+# Test that bug #3560 is fixed.
+#
+do_test indexedby-9.1 {
+  execsql {
+    CREATE TABLE maintable( id integer);
+    CREATE TABLE joinme(id_int integer, id_text text);
+    CREATE INDEX joinme_id_text_idx on joinme(id_text);
+    CREATE INDEX joinme_id_int_idx on joinme(id_int);
+  }
+} {}
+do_test indexedby-9.2 {
+  catchsql {
+    select * from maintable as m inner join
+    joinme as j indexed by joinme_id_text_idx
+    on ( m.id  = j.id_int)
+  }
+} {0 {}}
+do_test indexedby-9.3 {
+  catchsql { select * from maintable, joinme INDEXED by joinme_id_text_idx }
+} {0 {}}
+
+# Make sure we can still create tables, indices, and columns whose name
+# is "indexed".
+#
+do_test indexedby-10.1 {
+  execsql {
+    CREATE TABLE indexed(x,y);
+    INSERT INTO indexed VALUES(1,2);
+    SELECT * FROM indexed;
+  }
+} {1 2}
+do_test indexedby-10.2 {
+  execsql {
+    CREATE INDEX i10 ON indexed(x);
+    SELECT * FROM indexed indexed by i10 where x>0;
+  }
+} {1 2}
+do_test indexedby-10.3 {
+  execsql {
+    DROP TABLE indexed;
+    CREATE TABLE t10(indexed INTEGER);
+    INSERT INTO t10 VALUES(1);
+    CREATE INDEX indexed ON t10(indexed);
+    SELECT * FROM t10 indexed by indexed WHERE indexed>0
+  }
+} {1}
+
+#-------------------------------------------------------------------------
+# Ensure that the rowid at the end of each index entry may be used
+# for equality constraints in the same way as other indexed fields.
+#
+do_execsql_test 11.1 {
+  CREATE TABLE x1(a, b TEXT);
+  CREATE INDEX x1i ON x1(a, b);
+  INSERT INTO x1 VALUES(1, 1);
+  INSERT INTO x1 VALUES(1, 1);
+  INSERT INTO x1 VALUES(1, 1);
+  INSERT INTO x1 VALUES(1, 1);
+}
+do_execsql_test 11.2 {
+  SELECT a,b,rowid FROM x1 INDEXED BY x1i WHERE a=1 AND b=1 AND rowid=3;
+} {1 1 3}
+do_execsql_test 11.3 {
+  SELECT a,b,rowid FROM x1 INDEXED BY x1i WHERE a=1 AND b=1 AND rowid='3';
+} {1 1 3}
+do_execsql_test 11.4 {
+  SELECT a,b,rowid FROM x1 INDEXED BY x1i WHERE a=1 AND b=1 AND rowid='3.0';
+} {1 1 3}
+do_eqp_test 11.5 {
+  SELECT a,b,rowid FROM x1 INDEXED BY x1i WHERE a=1 AND b=1 AND rowid='3.0';
+} {SEARCH x1 USING COVERING INDEX x1i (a=? AND b=? AND rowid=?)}
+
+do_execsql_test 11.6 {
+  CREATE TABLE x2(c INTEGER PRIMARY KEY, a, b TEXT);
+  CREATE INDEX x2i ON x2(a, b);
+  INSERT INTO x2 VALUES(1, 1, 1);
+  INSERT INTO x2 VALUES(2, 1, 1);
+  INSERT INTO x2 VALUES(3, 1, 1);
+  INSERT INTO x2 VALUES(4, 1, 1);
+}
+do_execsql_test 11.7 {
+  SELECT a,b,c FROM x2 INDEXED BY x2i WHERE a=1 AND b=1 AND c=3;
+} {1 1 3}
+do_execsql_test 11.8 {
+  SELECT a,b,c FROM x2 INDEXED BY x2i WHERE a=1 AND b=1 AND c='3';
+} {1 1 3}
+do_execsql_test 11.9 {
+  SELECT a,b,c FROM x2 INDEXED BY x2i WHERE a=1 AND b=1 AND c='3.0';
+} {1 1 3}
+do_eqp_test 11.10 {
+  SELECT a,b,c FROM x2 INDEXED BY x2i WHERE a=1 AND b=1 AND c='3.0';
+} {SEARCH x2 USING COVERING INDEX x2i (a=? AND b=? AND rowid=?)}
+
+#-------------------------------------------------------------------------
+# Check INDEXED BY works (throws an exception) with partial indexes that 
+# cannot be used.
+do_execsql_test 12.1 {
+  CREATE TABLE o1(x INTEGER PRIMARY KEY, y, z);
+  CREATE INDEX p1 ON o1(z);
+  CREATE INDEX p2 ON o1(y) WHERE z=1;
+}
+do_catchsql_test 12.2 {
+  SELECT * FROM o1 INDEXED BY p2 ORDER BY 1;
+} {1 {no query solution}}
+do_execsql_test 12.3 {
+  DROP INDEX p1;
+  DROP INDEX p2;
+  CREATE INDEX p2 ON o1(y) WHERE z=1;
+  CREATE INDEX p1 ON o1(z);
+}
+do_catchsql_test 12.4 {
+  SELECT * FROM o1 INDEXED BY p2 ORDER BY 1;
+} {1 {no query solution}}
+
+finish_test
diff --git a/test/indexexpr1.test b/test/indexexpr1.test
new file mode 100644
index 0000000000000000000000000000000000000000..d5c47e403ed5daf3316e9e15f25b7bea3073b514
--- /dev/null
+++ b/test/indexexpr1.test
@@ -0,0 +1,685 @@
+# 2015-08-31
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing indexes on expressions.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_execsql_test indexexpr1-100 {
+  CREATE TABLE t1(a,b,c);
+  INSERT INTO t1(a,b,c)
+      /*  123456789 123456789 123456789 123456789 123456789 123456789 */ 
+  VALUES('In_the_beginning_was_the_Word',1,1),
+        ('and_the_Word_was_with_God',1,2),
+        ('and_the_Word_was_God',1,3),
+        ('The_same_was_in_the_beginning_with_God',2,1),
+        ('All_things_were_made_by_him',3,1),
+        ('and_without_him_was_not_any_thing_made_that_was_made',3,2);
+  CREATE INDEX t1a1 ON t1(substr(a,1,12));
+} {}
+do_execsql_test indexexpr1-110 {
+  SELECT b, c, '|' FROM t1 WHERE substr(a,1,12)=='and_the_Word' ORDER BY b, c;
+} {1 2 | 1 3 |}
+do_execsql_test indexexpr1-110eqp {
+  EXPLAIN QUERY PLAN
+  SELECT b, c, '|' FROM t1 WHERE substr(a,1,12)=='and_the_Word' ORDER BY b, c;
+} {/USING INDEX t1a1/}
+do_execsql_test indexexpr1-120 {
+  SELECT b, c, '|' FROM t1 WHERE 'and_the_Word'==substr(a,1,12) ORDER BY b, c;
+} {1 2 | 1 3 |}
+do_execsql_test indexexpr1-120eqp {
+  EXPLAIN QUERY PLAN
+  SELECT b, c, '|' FROM t1 WHERE 'and_the_Word'==substr(a,1,12) ORDER BY b, c;
+} {/USING INDEX t1a1/}
+
+do_execsql_test indexexpr1-130 {
+  CREATE INDEX t1ba ON t1(b,substr(a,2,3),c);
+  SELECT c FROM t1 WHERE b=1 AND substr(a,2,3)='nd_' ORDER BY c;
+} {2 3}
+do_execsql_test indexexpr1-130eqp {
+  EXPLAIN QUERY PLAN
+  SELECT c FROM t1 WHERE b=1 AND substr(a,2,3)='nd_' ORDER BY c;
+} {/USING COVERING INDEX t1ba/}
+
+do_execsql_test indexexpr1-140 {
+  SELECT rowid, substr(a,b,3), '|' FROM t1 ORDER BY 2;
+} {1 In_ | 2 and | 3 and | 6 d_w | 4 he_ | 5 l_t |}
+do_execsql_test indexexpr1-141 {
+  CREATE INDEX t1abx ON t1(substr(a,b,3));
+  SELECT rowid FROM t1 WHERE substr(a,b,3)<='and' ORDER BY +rowid;
+} {1 2 3}
+do_execsql_test indexexpr1-141eqp {
+  EXPLAIN QUERY PLAN
+  SELECT rowid FROM t1 WHERE substr(a,b,3)<='and' ORDER BY +rowid;
+} {/USING COVERING INDEX t1abx/}
+do_execsql_test indexexpr1-142 {
+  SELECT rowid FROM t1 WHERE +substr(a,b,3)<='and' ORDER BY +rowid;
+} {1 2 3}
+do_execsql_test indexexpr1-150 {
+  SELECT rowid FROM t1 WHERE substr(a,b,3) IN ('and','l_t','xyz')
+   ORDER BY +rowid;
+} {2 3 5}
+do_execsql_test indexexpr1-150eqp {
+  EXPLAIN QUERY PLAN
+  SELECT rowid FROM t1 WHERE substr(a,b,3) IN ('and','l_t','xyz')
+   ORDER BY +rowid;
+} {/USING COVERING INDEX t1abx/}
+
+ifcapable altertable {
+  do_execsql_test indexexpr1-160 {
+    ALTER TABLE t1 ADD COLUMN d;
+    UPDATE t1 SET d=length(a);
+    CREATE INDEX t1a2 ON t1(SUBSTR(a, 27, 3)) WHERE d>=29;
+    SELECT rowid, b, c FROM t1
+      WHERE substr(a,27,3)=='ord' AND d>=29;
+  } {1 1 1}
+  do_execsql_test indexexpr1-160eqp {
+    EXPLAIN QUERY PLAN
+      SELECT rowid, b, c FROM t1
+      WHERE substr(a,27,3)=='ord' AND d>=29;
+  } {/USING INDEX t1a2/}
+}
+
+# ORDER BY using an indexed expression
+#
+do_execsql_test indexexpr1-170 {
+  CREATE INDEX t1alen ON t1(length(a));
+  SELECT length(a) FROM t1 ORDER BY length(a);
+} {20 25 27 29 38 52}
+do_execsql_test indexexpr1-170eqp {
+  EXPLAIN QUERY PLAN
+  SELECT length(a) FROM t1 ORDER BY length(a);
+} {/SCAN t1 USING COVERING INDEX t1alen/}
+do_execsql_test indexexpr1-171 {
+  SELECT length(a) FROM t1 ORDER BY length(a) DESC;
+} {52 38 29 27 25 20}
+do_execsql_test indexexpr1-171eqp {
+  EXPLAIN QUERY PLAN
+  SELECT length(a) FROM t1 ORDER BY length(a) DESC;
+} {/SCAN t1 USING COVERING INDEX t1alen/}
+
+do_execsql_test indexexpr1-200 {
+  DROP TABLE t1;
+  CREATE TABLE t1(id ANY PRIMARY KEY, a,b,c) WITHOUT ROWID;
+  INSERT INTO t1(id,a,b,c)
+  VALUES(1,'In_the_beginning_was_the_Word',1,1),
+        (2,'and_the_Word_was_with_God',1,2),
+        (3,'and_the_Word_was_God',1,3),
+        (4,'The_same_was_in_the_beginning_with_God',2,1),
+        (5,'All_things_were_made_by_him',3,1),
+        (6,'and_without_him_was_not_any_thing_made_that_was_made',3,2);
+  CREATE INDEX t1a1 ON t1(substr(a,1,12));
+} {}
+do_execsql_test indexexpr1-210 {
+  SELECT b, c, '|' FROM t1 WHERE substr(a,1,12)=='and_the_Word' ORDER BY b, c;
+} {1 2 | 1 3 |}
+do_execsql_test indexexpr1-210eqp {
+  EXPLAIN QUERY PLAN
+  SELECT b, c, '|' FROM t1 WHERE substr(a,1,12)=='and_the_Word' ORDER BY b, c;
+} {/USING INDEX t1a1/}
+do_execsql_test indexexpr1-220 {
+  SELECT b, c, '|' FROM t1 WHERE 'and_the_Word'==substr(a,1,12) ORDER BY b, c;
+} {1 2 | 1 3 |}
+do_execsql_test indexexpr1-220eqp {
+  EXPLAIN QUERY PLAN
+  SELECT b, c, '|' FROM t1 WHERE 'and_the_Word'==substr(a,1,12) ORDER BY b, c;
+} {/USING INDEX t1a1/}
+
+do_execsql_test indexexpr1-230 {
+  CREATE INDEX t1ba ON t1(b,substr(a,2,3),c);
+  SELECT c FROM t1 WHERE b=1 AND substr(a,2,3)='nd_' ORDER BY c;
+} {2 3}
+do_execsql_test indexexpr1-230eqp {
+  EXPLAIN QUERY PLAN
+  SELECT c FROM t1 WHERE b=1 AND substr(a,2,3)='nd_' ORDER BY c;
+} {/USING COVERING INDEX t1ba/}
+
+do_execsql_test indexexpr1-240 {
+  SELECT id, substr(a,b,3), '|' FROM t1 ORDER BY 2;
+} {1 In_ | 2 and | 3 and | 6 d_w | 4 he_ | 5 l_t |}
+do_execsql_test indexexpr1-241 {
+  CREATE INDEX t1abx ON t1(substr(a,b,3));
+  SELECT id FROM t1 WHERE substr(a,b,3)<='and' ORDER BY +id;
+} {1 2 3}
+do_execsql_test indexexpr1-241eqp {
+  EXPLAIN QUERY PLAN
+  SELECT id FROM t1 WHERE substr(a,b,3)<='and' ORDER BY +id;
+} {/USING COVERING INDEX t1abx/}
+do_execsql_test indexexpr1-242 {
+  SELECT id FROM t1 WHERE +substr(a,b,3)<='and' ORDER BY +id;
+} {1 2 3}
+do_execsql_test indexexpr1-250 {
+  SELECT id FROM t1 WHERE substr(a,b,3) IN ('and','l_t','xyz')
+   ORDER BY +id;
+} {2 3 5}
+do_execsql_test indexexpr1-250eqp {
+  EXPLAIN QUERY PLAN
+  SELECT id FROM t1 WHERE substr(a,b,3) IN ('and','l_t','xyz')
+   ORDER BY +id;
+} {/USING COVERING INDEX t1abx/}
+
+ifcapable altertable {
+  do_execsql_test indexexpr1-260 {
+    ALTER TABLE t1 ADD COLUMN d;
+    UPDATE t1 SET d=length(a);
+    CREATE INDEX t1a2 ON t1(SUBSTR(a, 27, 3)) WHERE d>=29;
+    SELECT id, b, c FROM t1
+      WHERE substr(a,27,3)=='ord' AND d>=29;
+  } {1 1 1}
+  do_execsql_test indexexpr1-260eqp {
+    EXPLAIN QUERY PLAN
+      SELECT id, b, c FROM t1
+      WHERE substr(a,27,3)=='ord' AND d>=29;
+  } {/USING INDEX t1a2/}
+}
+
+
+do_catchsql_test indexexpr1-300 {
+  CREATE TABLE t2(a,b,c); INSERT INTO t2 VALUES(1,2,3);
+  CREATE INDEX t2x1 ON t2(a,b+random());
+} {1 {non-deterministic functions prohibited in index expressions}}
+do_catchsql_test indexexpr1-301 {
+  CREATE INDEX t2x1 ON t2(julianday('now',a));
+} {1 {non-deterministic use of julianday() in an index}}
+do_catchsql_test indexexpr1-310 {
+  CREATE INDEX t2x2 ON t2(a,b+(SELECT 15));
+} {1 {subqueries prohibited in index expressions}}
+do_catchsql_test indexexpr1-320 {
+  CREATE TABLE e1(x,y,UNIQUE(y,substr(x,1,5)));
+} {1 {expressions prohibited in PRIMARY KEY and UNIQUE constraints}}
+do_catchsql_test indexexpr1-330 {
+  CREATE TABLE e1(x,y,PRIMARY KEY(y,substr(x,1,5)));
+} {1 {expressions prohibited in PRIMARY KEY and UNIQUE constraints}}
+do_catchsql_test indexexpr1-331 {
+  CREATE TABLE e1(x,y,PRIMARY KEY(y,substr(x,1,5))) WITHOUT ROWID;
+} {1 {expressions prohibited in PRIMARY KEY and UNIQUE constraints}}
+do_catchsql_test indexexpr1-340 {
+  CREATE TABLE e1(x,y,FOREIGN KEY(substr(y,1,5)) REFERENCES t1);
+} {1 {near "(": syntax error}}
+
+do_execsql_test indexexpr1-400 {
+  CREATE TABLE t3(a,b,c);
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION SELECT x+1 FROM c WHERE x<30)
+  INSERT INTO t3(a,b,c)
+    SELECT x, printf('ab%04xyz',x), random() FROM c;
+  CREATE UNIQUE INDEX t3abc ON t3(CAST(a AS text), b, substr(c,1,3));
+  SELECT a FROM t3 WHERE CAST(a AS text)<='10' ORDER BY +a;
+  PRAGMA integrity_check;
+} {1 10 ok}
+do_catchsql_test indexexpr1-410 {
+  INSERT INTO t3 SELECT * FROM t3 WHERE rowid=10;
+} {1 {UNIQUE constraint failed: index 't3abc'}}
+
+do_execsql_test indexexpr1-500 {
+  CREATE TABLE t5(a);
+  CREATE TABLE cnt(x);
+  WITH RECURSIVE
+    c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<5)
+  INSERT INTO cnt(x) SELECT x FROM c;
+  INSERT INTO t5(a) SELECT printf('abc%03dxyz',x) FROM cnt;
+  CREATE INDEX t5ax ON t5( substr(a,4,3) );
+} {}
+do_execsql_test indexexpr1-510 {
+  -- The use of the "k" alias in the WHERE clause is technically
+  -- illegal, but SQLite allows it for historical reasons.  In this
+  -- test and the next, verify that "k" can be used by the t5ax index
+  SELECT substr(a,4,3) AS k FROM cnt, t5 WHERE k=printf('%03d',x);
+} {001 002 003 004 005}
+do_execsql_test indexexpr1-510eqp {
+  EXPLAIN QUERY PLAN
+  SELECT substr(a,4,3) AS k FROM cnt, t5 WHERE k=printf('%03d',x);
+} {/USING COVERING INDEX t5ax/}
+
+# Skip-scan on an indexed expression
+#
+do_execsql_test indexexpr1-600 {
+  DROP TABLE IF EXISTS t4;
+  CREATE TABLE t4(a,b,c,d,e,f,g,h,i);
+  CREATE INDEX t4all ON t4(a,b,c<d,e,f,i,h);
+  INSERT INTO t4 VALUES(1,2,3,4,5,6,7,8,9);
+  ANALYZE;
+  DELETE FROM sqlite_stat1;
+  INSERT INTO sqlite_stat1
+    VALUES('t4','t4all','600000 160000 40000 10000 2000 600 100 40 10');
+  ANALYZE sqlite_master;
+  SELECT i FROM t4 WHERE e=5;
+} {9}
+
+# Indexed expressions on both sides of an == in a WHERE clause.
+#
+do_execsql_test indexexpr1-700 {
+  DROP TABLE IF EXISTS t7;
+  CREATE TABLE t7(a,b,c);
+  INSERT INTO t7(a,b,c) VALUES(1,2,2),('abc','def','def'),(4,5,6);
+  CREATE INDEX t7b ON t7(+b);
+  CREATE INDEX t7c ON t7(+c);
+  SELECT *, '|' FROM t7 WHERE +b=+c ORDER BY +a;
+} {1 2 2 | abc def def |}
+do_execsql_test indexexpr1-710 {
+  CREATE TABLE t71(a,b,c);
+  CREATE INDEX t71bc ON t71(b+c);
+  CREATE TABLE t72(x,y,z);
+  CREATE INDEX t72yz ON t72(y+z);
+  INSERT INTO t71(a,b,c) VALUES(1,11,2),(2,7,15),(3,5,4);
+  INSERT INTO t72(x,y,z) VALUES(1,10,3),(2,8,14),(3,9,9);
+  SELECT a, x, '|' FROM t71, t72
+   WHERE b+c=y+z
+  ORDER BY +a, +x;
+} {1 1 | 2 2 |}
+
+# Collating sequences on indexes of expressions
+#
+do_execsql_test indexexpr1-800 {
+  DROP TABLE IF EXISTS t8;
+  CREATE TABLE t8(a INTEGER PRIMARY KEY, b TEXT);
+  CREATE UNIQUE INDEX t8bx ON t8(substr(b,2,4) COLLATE nocase);
+  INSERT INTO t8(a,b) VALUES(1,'Alice'),(2,'Bartholemew'),(3,'Cynthia');
+  SELECT * FROM t8 WHERE substr(b,2,4)='ARTH' COLLATE nocase;
+} {2 Bartholemew}
+do_catchsql_test indexexpr1-810 {
+  INSERT INTO t8(a,b) VALUES(4,'BARTHMERE');
+} {1 {UNIQUE constraint failed: index 't8bx'}}
+do_catchsql_test indexexpr1-820 {
+  DROP INDEX t8bx;
+  CREATE UNIQUE INDEX t8bx ON t8(substr(b,2,4) COLLATE rtrim);
+  INSERT INTO t8(a,b) VALUES(4,'BARTHMERE');
+} {0 {}}
+
+# Check that PRAGMA integrity_check works correctly on a
+# UNIQUE index that includes rowid and expression terms.
+#
+do_execsql_test indexexpr1-900 {
+  CREATE TABLE t9(a,b,c,d);
+  CREATE UNIQUE INDEX t9x1 ON t9(c,abs(d),b);
+  INSERT INTO t9(rowid,a,b,c,d) VALUES(1,2,3,4,5);
+  INSERT INTO t9(rowid,a,b,c,d) VALUES(2,NULL,NULL,NULL,NULL);
+  INSERT INTO t9(rowid,a,b,c,d) VALUES(3,NULL,NULL,NULL,NULL);
+  INSERT INTO t9(rowid,a,b,c,d) VALUES(4,5,6,7,8);
+  PRAGMA integrity_check;
+} {ok}
+do_catchsql_test indexexpr1-910 {
+  INSERT INTO t9(a,b,c,d) VALUES(5,6,7,-8);
+} {1 {UNIQUE constraint failed: index 't9x1'}}
+
+# Test cases derived from a NEVER() maro failure discovered by
+# Jonathan Metzman using AFL
+#
+do_execsql_test indexexpr1-1000 {
+  DROP TABLE IF EXISTS t0;
+  CREATE TABLE t0(a,b,t);
+  CREATE INDEX i ON t0(a in(0,1));
+  INSERT INTO t0 VALUES(0,1,2),(2,3,4),(5,6,7);
+  UPDATE t0 SET b=99 WHERE (a in(0,1))=0;
+  SELECT *, '|' FROM t0 ORDER BY +a;
+} {0 1 2 | 2 99 4 | 5 99 7 |}
+do_execsql_test indexexpr1-1010 {
+  UPDATE t0 SET b=88 WHERE (a in(0,1))=1;
+  SELECT *, '|' FROM t0 ORDER BY +a;
+} {0 88 2 | 2 99 4 | 5 99 7 |}
+
+# 2016-10-10
+# Make sure indexes on expressions skip over initial NULL values in the
+# index as they are suppose to do.
+# Ticket https://www.sqlite.org/src/tktview/4baa46491212947
+#
+do_execsql_test indexexpr1-1100 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a);
+  INSERT INTO t1 VALUES(NULL),(1);
+  SELECT '1:', typeof(a), a FROM t1 WHERE a<10;
+  SELECT '2:', typeof(a), a FROM t1 WHERE a+0<10;
+  CREATE INDEX t1x1 ON t1(a);
+  CREATE INDEX t1x2 ON t1(a+0);
+  SELECT '3:', typeof(a), a FROM t1 WHERE a<10;
+  SELECT '4:', typeof(a), a FROM t1 WHERE a+0<10;
+} {1: integer 1 2: integer 1 3: integer 1 4: integer 1}
+
+do_execsql_test indexexpr1-1200 {
+  CREATE TABLE t10(a int, b int, c int, d int);
+  INSERT INTO t10(a, b, c, d) VALUES(0, 0, 2, 2);
+  INSERT INTO t10(a, b, c, d) VALUES(0, 0, 0, 0);
+  INSERT INTO t10(a, b, c, d) VALUES(0, 0, 1, 1);
+  INSERT INTO t10(a, b, c, d) VALUES(1, 1, 1, 1);
+  INSERT INTO t10(a, b, c, d) VALUES(1, 1, 0, 0);
+  INSERT INTO t10(a, b, c, d) VALUES(2, 2, 0, 0);
+
+  SELECT a+b, c+d FROM t10 ORDER BY a+b, c+d;
+} {
+  0 0 0 2 0 4 2 0 2 2 4 0
+}
+do_execsql_test indexexpr1-1200.1 {
+  CREATE INDEX t10_ab ON t10(a+b);
+}
+do_execsql_test indexexpr1-1200.2 {
+  SELECT a+b, c+d FROM t10 ORDER BY a+b, c+d;
+} {
+  0 0 0 2 0 4 2 0 2 2 4 0
+}
+do_execsql_test indexexpr1-1200.3 {
+  CREATE INDEX t10_abcd ON t10(a+b,c+d);
+}
+do_execsql_test indexexpr1-1200.4 {
+  SELECT a+b, c+d FROM t10 ORDER BY a+b, c+d;
+} {
+  0 0 0 2 0 4 2 0 2 2 4 0
+}
+
+# Ticket https://www.sqlite.org/src/tktview/eb703ba7b50c1a
+# Incorrect result using an index on an expression with a collating function
+#
+do_execsql_test indexexpr1-1300.1 {
+  CREATE TABLE t1300(a INTEGER PRIMARY KEY, b);
+  INSERT INTO t1300 VALUES(1,'coffee'),(2,'COFFEE'),(3,'stress'),(4,'STRESS');
+  CREATE INDEX t1300bexpr ON t1300( substr(b,4) );
+  SELECT a FROM t1300 WHERE substr(b,4)='ess' COLLATE nocase ORDER BY +a;
+} {3 4}
+
+# Ticket https://sqlite.org/src/tktview/aa98619a
+# Assertion fault using an index on a constant
+#
+do_execsql_test indexexpr1-1400 {
+  CREATE TABLE t1400(x TEXT);
+  CREATE INDEX t1400x ON t1400(1);  -- Index on a constant
+  SELECT 1 IN (SELECT 2) FROM t1400;
+} {}
+do_execsql_test indexexpr1-1410 {
+  INSERT INTO t1400 VALUES('a'),('b');
+  SELECT 1 IN (SELECT 2) FROM t1400;
+} {0 0}
+do_execsql_test indexexpr1-1420 {
+  SELECT 1 IN (SELECT 2 UNION ALL SELECT 1) FROM t1400;
+} {1 1}
+do_execsql_test indexexpr1-1430 {
+  DROP INDEX t1400x;
+  CREATE INDEX t1400x ON t1400(abs(15+3));
+  SELECT abs(15+3) IN (SELECT 17 UNION ALL SELECT 18) FROM t1;
+} {1 1}
+
+# 2018-01-02 ticket https://sqlite.org/src/info/dc3f932f5a147771
+# A REPLACE into a table that uses an index on an expression causes
+# an assertion fault.  Problem discovered by OSSFuzz.
+#
+do_execsql_test indexexpr1-1500 {
+  CREATE TABLE t1500(a INT PRIMARY KEY, b INT UNIQUE);
+  CREATE INDEX t1500ab ON t1500(a*b);
+  INSERT INTO t1500(a,b) VALUES(1,2);
+  REPLACE INTO t1500(a,b) VALUES(1,3);  -- formerly caused assertion fault
+  SELECT * FROM t1500;
+} {1 3}
+
+# 2018-01-03 OSSFuzz discovers another test case for the same problem
+# above.
+#
+do_execsql_test indexexpr1-1510 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a PRIMARY KEY,b UNIQUE);
+  REPLACE INTO t1 VALUES(2, 1);
+  REPLACE INTO t1 SELECT 6,1;
+  CREATE INDEX t1aa ON t1(a-a);
+  REPLACE INTO t1 SELECT a, randomblob(a) FROM t1
+} {}
+
+# 2018-01-31 https://www.sqlite.org/src/tktview/343634942dd54ab57b702411
+# When an index on an expression depends on the string representation of
+# a numeric table column, trouble can arise since there are multiple
+# string that can map to the same numeric value.  (Ex: 123, 0123, 000123).
+#
+do_execsql_test indexexpr1-1600 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1 (a INTEGER, b);
+  CREATE INDEX idx1 ON t1 (lower(a));
+  INSERT INTO t1 VALUES('0001234',3);
+  PRAGMA integrity_check;
+} {ok}
+do_execsql_test indexexpr1-1610 {
+  INSERT INTO t1 VALUES('1234',0),('001234',2),('01234',1);
+  SELECT b FROM t1 WHERE lower(a)='1234' ORDER BY +b;
+} {0 1 2 3}
+do_execsql_test indexexpr1-1620 {
+  SELECT b FROM t1 WHERE lower(a)='01234' ORDER BY +b;
+} {}
+
+# 2019-08-09 https://www.sqlite.org/src/info/9080b6227fabb466
+# ExprImpliesExpr theorem prover bug:
+# "(NULL IS FALSE) IS FALSE" does not imply "NULL IS NULL"
+#
+do_execsql_test indexexpr1-1700 {
+  DROP TABLE IF EXISTS t0;
+  CREATE TABLE t0(c0);
+  INSERT INTO t0(c0) VALUES (0);
+  CREATE INDEX i0 ON t0(NULL > c0) WHERE (NULL NOT NULL);
+  SELECT * FROM t0 WHERE ((NULL IS FALSE) IS FALSE);
+} {0}
+
+# 2019-09-02 https://www.sqlite.org/src/tktview/57af00b6642ecd6848
+# When the expression of an an index-on-expression references a
+# table column of type REAL that is actually holding an MEM_IntReal
+# value, be sure to use the REAL value and not the INT value when
+# computing the expression.
+#
+ifcapable like_match_blobs {
+  do_execsql_test indexexpr1-1800 {
+    DROP TABLE IF EXISTS t0;
+    CREATE TABLE t0(c0 REAL, c1 TEXT);
+    CREATE INDEX i0 ON t0(+c0, c0);
+    INSERT INTO t0(c0) VALUES(0);
+    SELECT CAST(+ t0.c0 AS BLOB) LIKE 0 FROM t0; 
+  } {0}
+  do_execsql_test indexexpr1-1810 {
+    SELECT CAST(+ t0.c0 AS BLOB) LIKE '0.0' FROM t0; 
+  } {1}
+  do_execsql_test indexexpr1-1820 {
+    DROP TABLE IF EXISTS t1;
+    CREATE TABLE t1(x REAL);
+    CREATE INDEX t1x ON t1(x, +x);
+    INSERT INTO t1(x) VALUES(2);
+    SELECT +x FROM t1 WHERE x=2;
+  } {2.0}
+}
+
+# 2022-04-30 https://sqlite.org/forum/info/7efabf4b03328e57
+# Assertion fault during a DELETE INDEXED BY.
+#
+reset_db
+do_execsql_test indexexpr1-1900 {
+  CREATE TABLE t1(x TEXT PRIMARY KEY, y TEXT, z INT);
+  INSERT INTO t1(x,y,z) VALUES('alpha','ALPHA',1),('bravo','charlie',1);
+  CREATE INDEX i1 ON t1(+y COLLATE NOCASE);
+  SELECT * FROM t1;
+} {alpha ALPHA 1 bravo charlie 1}
+do_execsql_test indexexpr1-1910 {
+  DELETE FROM t1 INDEXED BY i1 
+   WHERE x IS +y COLLATE NOCASE IN (SELECT z FROM t1)
+  RETURNING *;
+} {alpha ALPHA 1}
+do_execsql_test indexexpr1-1920 {
+  SELECT * FROM t1;
+} {bravo charlie 1}
+
+# 2022-11-28 Ticket 695a1a53de
+# Improved ability to recognize that an index on an expression is a
+# covering index.
+#
+reset_db
+do_execsql_test indexexpr1-2000 {
+  CREATE TABLE t1(a INT, b TEXT);
+  INSERT INTO t1(a,b) VALUES
+    (10, '{"one":5,"two":6}'),
+    (10, '{"one":50,"two":60}'),
+    (10, '{"three":99}'),
+    (11, '{"one":100,"two":200}');
+  CREATE INDEX t1_one ON t1(a, b->>'one');
+  CREATE INDEX t1_two ON t1(a, b->>'two');
+}
+do_execsql_test indexexpr1-2010 {
+  EXPLAIN QUERY PLAN
+  SELECT sum(b->>'one') FROM t1 WHERE a=10; /* Query AA */
+} {/.* t1_one .*/}
+do_execsql_test indexexpr1-2011 {
+  SELECT sum(b->>'one') FROM t1 WHERE a=10; /* Query AA */
+} {55}
+do_execsql_test indexexpr1-2020 {
+  EXPLAIN QUERY PLAN
+  SELECT sum(b->>'two') FROM t1 WHERE a=10; /* Query BB */
+} {/.* t1_two .*/}
+do_execsql_test indexexpr1-2021 {
+  SELECT sum(b->>'two') FROM t1 WHERE a=10; /* Query BB */
+} {66}
+do_execsql_test indexexpr1-2030 {
+  DROP TABLE t1;
+  CREATE TABLE t1(a INT, b TEXT, c INT, d INT);
+  INSERT INTO t1(a,b,c,d) VALUES
+    (1, '{"x":1}', 12,  3),
+    (1, '{"x":2}',  4,  5),
+    (1, '{"x":1}',  6, 11),
+    (2, '{"x":1}', 22,  3),
+    (2, '{"x":2}',  4,  5),
+    (3, '{"x":1}',  6,  7);
+  CREATE INDEX t1x ON t1(d, a, b->>'x', c);
+}
+do_execsql_test indexexpr1-2040 {
+  SELECT a,
+       SUM(1)                              AS t1,
+       SUM(CASE WHEN b->>'x'=1 THEN 1 END) AS t2,
+       SUM(c)                              AS t3,
+       SUM(CASE WHEN b->>'x'=1 THEN c END) AS t4
+    FROM t1;
+} {1 6 4 54 46}
+do_execsql_test indexexpr1-2050 {
+  explain query plan
+  SELECT a,
+       SUM(1)                              AS t1,
+       SUM(CASE WHEN b->>'x'=1 THEN 1 END) AS t2,
+       SUM(c)                              AS t3,
+       SUM(CASE WHEN b->>'x'=1 THEN c END) AS t4
+    FROM t1;
+} {/.*SCAN t1 USING COVERING INDEX t1x.*/}
+
+reset_db
+do_execsql_test indexexpr1-2100 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b INT);
+  INSERT INTO t1(a,b) VALUES(1,0);
+  CREATE INDEX x1 ON t1( "y" );
+  CREATE INDEX x2 ON t1( +"y" );
+  CREATE INDEX x3 ON t1( +'y' );
+  CREATE INDEX x4 ON t1( "y*" );
+}
+do_execsql_test indexexpr1-2110 {
+  UPDATE t1 SET b=100 WHERE (SELECT 'y') GLOB "y";
+  SELECT b FROM t1;
+} 100
+do_execsql_test indexexpr1-2120 {
+  UPDATE t1 SET b=200 WHERE (SELECT 'y') GLOB +"y";
+  SELECT b FROM t1;
+} 200
+do_execsql_test indexexpr1-2130 {
+  UPDATE t1 SET b=300 WHERE (SELECT 'y') GLOB +'y';
+  SELECT b FROM t1;
+} 300
+do_execsql_test indexexpr1-2140 {
+  UPDATE t1 SET b=400 WHERE (SELECT 'y') GLOB "y*";
+  SELECT b FROM t1;
+} 400
+
+# 2023-04-18 Forum post https://sqlite.org/forum/forumpost/f34e32d120 from
+# Alexis King.
+#
+# This problem originates at check-in b9190d3da70c4171 (2022-11-25).
+# A similar problem arose on 2023-03-04 at
+# https://sqlite.org/forum/forumpost/a68313d054 and was fixed at
+# check-in e06973876993926f.  See the test case tkt-99378-400.
+# 
+reset_db
+do_execsql_test indexexpr1-2200 {
+  CREATE TABLE t1(id INTEGER PRIMARY KEY, tag INT);
+  INSERT INTO t1 VALUES (0, 7), (1, 8);
+  CREATE TABLE t2(type INT, t1_id  INT, value  INT);
+  INSERT INTO t2 VALUES (0, 0, 100), (0, 1, 101);
+  CREATE INDEX t1x ON t1(-tag);
+  SELECT u.tag, v.max_value
+    FROM (SELECT tag FROM t1 GROUP BY -tag) u
+    JOIN (SELECT t1.tag AS "tag", t2.type AS "type",
+                 MAX(t2.value) AS "max_value"
+            FROM t1
+                 JOIN t2 ON t2.t1_id = t1.id
+           GROUP BY t2.type, t1.tag
+         ) v ON v.type = 0 AND v.tag = u.tag;
+} {7 100 8 101}
+do_execsql_test indexexpr1-2210 {
+  DROP TABLE t1;
+  CREATE TABLE t1(x INT, y TEXT);
+  INSERT INTO t1(x,y) VALUES(1,'{b:5}');
+  SELECT json_insert('{}', '$.a', coalesce(null,json(y)))->>'$.a.b' FROM t1;
+} {5}
+db null NULL
+do_execsql_test indexexpr1-2211 {
+  CREATE INDEX t1j ON t1(coalesce(null,json(y)));
+  SELECT json_insert('{}', '$.a', coalesce(null,json(y)))->>'$.a.b' FROM t1;
+} {5}
+do_execsql_test indexexpr1-2220 {
+  DROP INDEX t1j;
+  SELECT json_insert('{}', '$.a', iif(1,json(y),123))->>'$.a.b' FROM t1;
+} {5}
+do_execsql_test indexexpr1-2221 {
+  CREATE INDEX t1j ON t1(iif(1,json(y),123));
+  SELECT json_insert('{}', '$.a', iif(1,json(y),123))->>'$.a.b' FROM t1;
+} {5}
+do_execsql_test indexexpr1-2230 {
+  DROP INDEX t1j;
+  SELECT json_insert('{}', '$.a', ifnull(NULL,json(y)))->>'$.a.b' FROM t1;
+} {5}
+do_execsql_test indexexpr1-2231 {
+  CREATE INDEX t1j ON t1(ifnull(NULL,json(y)));
+  SELECT json_insert('{}', '$.a', ifnull(NULL,json(y)))->>'$.a.b' FROM t1;
+} {5}
+do_execsql_test indexexpr1-2240 {
+  DROP INDEX t1j;
+  SELECT json_insert('{}', '$.a', nullif(json(y),8))->>'$.a.b' FROM t1;
+} {5}
+do_execsql_test indexexpr1-2241 {
+  CREATE INDEX t1j ON t1(nullif(json(y),8));
+  SELECT json_insert('{}', '$.a', nullif(json(y),8))->>'$.a.b' FROM t1;
+} {5}
+do_execsql_test indexexpr1-2250 {
+  DROP INDEX t1j;
+  SELECT json_insert('{}', '$.a', min('~',json(y)))->>'$.a.b' FROM t1;
+} {5}
+do_execsql_test indexexpr1-2251 {
+  CREATE INDEX t1j ON t1(min('~',json(y)));
+  SELECT json_insert('{}', '$.a', min('~',json(y)))->>'$.a.b' FROM t1;
+} {5}
+do_execsql_test indexexpr1-2260 {
+  DROP INDEX t1j;
+  SELECT json_insert('{}', '$.a', max('...',json(y)))->>'$.a.b' FROM t1;
+} {5}
+do_execsql_test indexexpr1-2261 {
+  CREATE INDEX t1j ON t1(max('...',json(y)));
+  SELECT json_insert('{}', '$.a', max('...',json(y)))->>'$.a.b' FROM t1;
+} {5}
+
+
+# 2023-11-08 Forum post https://sqlite.org/forum/forumpost/68d284c86b082c3e
+#
+# Functions that return subtypes and that are indexed cannot be used to
+# cover function calls from the main table, since the indexed value does
+# not know the subtype.
+#
+reset_db
+do_execsql_test indexexpr1-2300 {
+  CREATE TABLE t1(x INT, y TEXT);
+  INSERT INTO t1(x,y) VALUES(1,'{b:5}');
+  CREATE INDEX t1j ON t1(json(y));
+  SELECT json_insert('{}', '$.a', json(y)) FROM t1;
+} {{{"a":{"b":5}}}}
+
+finish_test
diff --git a/test/indexexpr2.test b/test/indexexpr2.test
new file mode 100644
index 0000000000000000000000000000000000000000..4c21421e8e7d0708207269c3cea5af73363407e0
--- /dev/null
+++ b/test/indexexpr2.test
@@ -0,0 +1,428 @@
+# 2017 April 11
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix indexexpr2
+
+do_execsql_test 1 {
+  CREATE TABLE t1(a, b);
+  INSERT INTO t1 VALUES(1, 'one');
+  INSERT INTO t1 VALUES(2, 'two');
+  INSERT INTO t1 VALUES(3, 'three');
+
+  CREATE INDEX i1 ON t1(b || 'x');
+}
+
+do_execsql_test 1.1 {
+  SELECT 'TWOX' == (b || 'x') FROM t1 WHERE (b || 'x')>'onex'
+} {0 0}
+
+do_execsql_test 1.2 {
+  SELECT 'TWOX' == (b || 'x') COLLATE nocase  FROM t1 WHERE (b || 'x')>'onex'
+} {0 1}
+
+do_execsql_test 2.0 {
+  CREATE INDEX i2 ON t1(a+1);
+}
+
+do_execsql_test 2.1 {
+  SELECT a+1, quote(a+1) FROM t1 ORDER BY 1;
+} {2 2 3 3 4 4}
+
+#-------------------------------------------------------------------------
+# At one point SQLite was incorrectly using indexes on expressions to
+# optimize ORDER BY and GROUP BY clauses even when the collation
+# sequences of the query and index did not match (ticket [e20dd54ab0e4]).
+# The following tests - 3.* - attempt to verify that this has been fixed.
+#
+
+reset_db
+do_execsql_test 3.1.0 {
+  CREATE TABLE t1(a, b);
+  CREATE INDEX i1 ON t1(a, b);
+} {}
+
+do_eqp_test 3.1.1 {
+  SELECT b FROM t1 WHERE b IS NOT NULL AND a IS NULL 
+  GROUP BY b COLLATE nocase
+  ORDER BY b COLLATE nocase;
+} {/USE TEMP B-TREE FOR GROUP BY/}
+
+do_execsql_test 3.2.0 {
+  CREATE TABLE t2(x);
+
+  INSERT INTO t2 VALUES('.ABC');
+  INSERT INTO t2 VALUES('.abcd');
+  INSERT INTO t2 VALUES('.defg');
+  INSERT INTO t2 VALUES('.DEF');
+} {}
+
+do_execsql_test 3.2.1 {
+  SELECT x FROM t2 ORDER BY substr(x, 2) COLLATE nocase;
+} {
+  .ABC .abcd .DEF .defg
+}
+
+do_execsql_test 3.2.2 {
+  CREATE INDEX i2 ON t2( substr(x, 2) );
+  SELECT x FROM t2 ORDER BY substr(x, 2) COLLATE nocase;
+} {
+  .ABC .abcd .DEF .defg
+}
+
+do_execsql_test 3.3.0 {
+  CREATE TABLE t3(x);
+}
+
+ifcapable json1 {
+  do_eqp_test 3.3.1 {
+    SELECT json_extract(x, '$.b') FROM t2 
+    WHERE json_extract(x, '$.b') IS NOT NULL AND json_extract(x, '$.a') IS NULL 
+    GROUP BY json_extract(x, '$.b') COLLATE nocase
+    ORDER BY json_extract(x, '$.b') COLLATE nocase;
+  } [string map {"\n  " \n} {
+    QUERY PLAN
+    |--SCAN t2
+    `--USE TEMP B-TREE FOR GROUP BY
+  }]
+  
+  do_execsql_test 3.3.2 {
+    CREATE INDEX i3 ON t3(json_extract(x, '$.a'), json_extract(x, '$.b'));
+  } {}
+  
+  do_eqp_test 3.3.3 {
+    SELECT json_extract(x, '$.b') FROM t3 
+    WHERE json_extract(x, '$.b') IS NOT NULL AND json_extract(x, '$.a') IS NULL 
+    GROUP BY json_extract(x, '$.b') COLLATE nocase
+    ORDER BY json_extract(x, '$.b') COLLATE nocase;
+  } [string map {"\n  " \n} {
+    QUERY PLAN
+    |--SEARCH t3 USING INDEX i3 (<expr>=?)
+    `--USE TEMP B-TREE FOR GROUP BY
+  }]
+}
+
+do_execsql_test 3.4.0 {
+  CREATE TABLE t4(a, b);
+  INSERT INTO t4 VALUES('.ABC', 1);
+  INSERT INTO t4 VALUES('.abc', 2);
+  INSERT INTO t4 VALUES('.ABC', 3);
+  INSERT INTO t4 VALUES('.abc', 4);
+}
+
+do_execsql_test 3.4.1 {
+  SELECT * FROM t4 
+  WHERE substr(a, 2) = 'abc' COLLATE NOCASE
+  ORDER BY substr(a, 2), b;
+} {
+  .ABC 1   .ABC 3   .abc 2   .abc 4
+}
+
+do_execsql_test 3.4.2 {
+  CREATE INDEX i4 ON t4( substr(a, 2) COLLATE NOCASE, b );
+  SELECT * FROM t4 
+  WHERE substr(a, 2) = 'abc' COLLATE NOCASE
+  ORDER BY substr(a, 2), b;
+} {
+  .ABC 1   .ABC 3   .abc 2   .abc 4
+}
+
+do_execsql_test 3.4.3 {
+  DROP INDEX i4;
+  UPDATE t4 SET a = printf('%s%d',a,b);
+  SELECT * FROM t4 ORDER BY Substr(a,-2) COLLATE nocase;
+} {.ABC1 1 .abc2 2 .ABC3 3 .abc4 4}
+do_execsql_test 3.4.4 {
+  SELECT * FROM t4 ORDER BY Substr(a,-2) COLLATE binary;
+} {.ABC1 1 .ABC3 3 .abc2 2 .abc4 4}
+
+do_execsql_test 3.4.5 {
+  CREATE INDEX i4 ON t4( Substr(a,-2) COLLATE nocase );
+  SELECT * FROM t4 ORDER BY Substr(a,-2) COLLATE nocase;
+} {.ABC1 1 .abc2 2 .ABC3 3 .abc4 4}
+do_execsql_test 3.4.5eqp {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t4 ORDER BY Substr(a,-2) COLLATE nocase;
+} {/SCAN t4 USING INDEX i4/}
+do_execsql_test 3.4.6 {
+  SELECT * FROM t4 ORDER BY Substr(a,-2) COLLATE binary;
+} {.ABC1 1 .ABC3 3 .abc2 2 .abc4 4}
+
+# 2014-09-15:  Verify that UPDATEs of columns not referenced by a
+# index on expression do not modify the index.
+#
+unset -nocomplain cnt
+set cnt 0
+proc refcnt {x} {
+  global cnt
+  incr cnt
+  return $x
+}
+db close
+sqlite3 db :memory:
+db function refcnt -deterministic refcnt
+do_test 4.100 {
+  db eval {
+    CREATE TABLE t1(a,b,c,d,e,f);
+    CREATE INDEX t1abc ON t1(refcnt(a+b+c));
+  }
+  set ::cnt
+} {0}
+do_test 4.110 {
+  db eval {INSERT INTO t1 VALUES(1,2,3,4,5,6);}
+  set ::cnt
+  # The refcnt() function is invoked once to compute the index value 
+} {1}
+do_test 4.120 {
+  set ::cnt 0
+  db eval {UPDATE t1 SET b=b+1;}
+  set ::cnt
+  # The refcnt() function is invoked twice, once to remove the old index
+  # entry and a second time to insert the new one.
+} {2}
+do_test 4.130 {
+  set ::cnt 0
+  db eval {UPDATE t1 SET d=d+1;}
+  set ::cnt
+  # Refcnt() should not be invoked because that index does not change.
+} {0}
+
+# Additional test cases to show that UPDATE does not modify indexes that
+# do not involve unchanged columns.
+#
+ifcapable vtab {
+  load_static_extension db explain
+  do_execsql_test 4.200 {
+    CREATE TABLE t2(a,b,c,d,e,f);
+    INSERT INTO t2 VALUES(2,3,4,5,6,7);
+    CREATE INDEX t2abc ON t2(a+b+c);
+    CREATE INDEX t2cd ON t2(c*d);
+    CREATE INDEX t2def ON t2(d,e+25*f);
+    SELECT sqlite_master.name 
+      FROM sqlite_master, explain('UPDATE t2 SET b=b+1')
+     WHERE explain.opcode LIKE 'Open%'
+       AND sqlite_master.rootpage=explain.p2
+     ORDER BY 1;
+  } {t2 t2abc}
+  do_execsql_test 4.210 {
+    SELECT sqlite_master.name 
+      FROM sqlite_master, explain('UPDATE t2 SET c=c+1')
+     WHERE explain.opcode LIKE 'Open%'
+       AND sqlite_master.rootpage=explain.p2
+     ORDER BY 1;
+  } {t2 t2abc t2cd}
+  do_execsql_test 4.220 {
+    SELECT sqlite_master.name 
+      FROM sqlite_master, explain('UPDATE t2 SET c=c+1, f=NULL')
+     WHERE explain.opcode LIKE 'Open%'
+       AND sqlite_master.rootpage=explain.p2
+     ORDER BY 1;
+  } {t2 t2abc t2cd t2def}
+}
+
+#-------------------------------------------------------------------------
+# Test that ticket [d96eba87] has been fixed.
+#
+do_execsql_test 5.0 {
+  CREATE TABLE t5(a INTEGER, b INTEGER);
+  INSERT INTO t5 VALUES(2, 4), (3, 9);
+}
+do_execsql_test 5.1 {
+  SELECT * FROM t5 WHERE abs(a)=2 or abs(b)=9;
+} {2 4 3 9}
+do_execsql_test 5.2 {
+  CREATE INDEX t5a ON t5( abs(a) );
+  CREATE INDEX t5b ON t5( abs(b) );
+}
+do_execsql_test 5.4 {
+  SELECT * FROM t5 WHERE abs(a)=2 or abs(b)=9;
+} {2 4 3 9}
+
+#-------------------------------------------------------------------------
+do_execsql_test 6.0 {
+  CREATE TABLE x1(a INTEGER PRIMARY KEY, b);
+  INSERT INTO x1 VALUES
+      (1, 123), (2, '123'), (3, '123abc'), (4, 123.0), (5, 1234);
+}
+
+do_execsql_test 6.1.1 {
+  SELECT a, b FROM x1 WHERE CAST(b AS INTEGER) = 123;
+} {1 123   2 123   3 123abc  4 123.0}
+do_execsql_test 6.1.2 {
+  CREATE INDEX x1i ON x1( CAST(b AS INTEGER) );
+  SELECT a, b FROM x1 WHERE CAST(b AS INTEGER) = 123;
+} {1 123   2 123   3 123abc  4 123.0}
+do_eqp_test 6.1.3 {
+  SELECT a, b FROM x1 WHERE CAST(b AS INTEGER) = 123;
+} {SEARCH x1 USING INDEX x1i (<expr>=?)}
+
+do_execsql_test 6.2.1 {
+  SELECT a, b FROM x1 WHERE CAST(b AS TEXT) = 123;
+} {1 123   2 123}
+do_execsql_test 6.2.2 {
+  CREATE INDEX x1i2 ON x1( CAST(b AS TEXT) );
+  SELECT a, b FROM x1 WHERE CAST(b AS TEXT) = 123;
+} {1 123   2 123}
+do_eqp_test 6.2.3 {
+  SELECT a, b FROM x1 WHERE CAST(b AS TEXT) = 123;
+} {SEARCH x1 USING INDEX x1i2 (<expr>=?)}
+
+do_execsql_test 7.0 {
+  CREATE TABLE IF NOT EXISTS t0(c0);
+  INSERT INTO t0(c0) VALUES (-9223372036854775808);
+  BEGIN;
+}
+do_catchsql_test 7.1 {
+  CREATE INDEX i0 ON t0(ABS(c0));
+} {1 {integer overflow}}
+do_execsql_test 7.2 {
+  COMMIT;
+  SELECT sql FROM sqlite_master WHERE tbl_name = 't0';
+  CREATE INDEX i0 ON t0(c0);
+} {{CREATE TABLE t0(c0)}}
+do_execsql_test 7.3 {
+  REINDEX;
+} {}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 8.0 {
+  CREATE TABLE t0(c0);
+  CREATE INDEX i0 ON t0(c0) WHERE c0 NOT NULL;
+  INSERT INTO t0(c0) VALUES (NULL);
+}
+
+do_execsql_test 8.1.1 {
+  SELECT * FROM t0 WHERE ~('' BETWEEN t0.c0 AND TRUE);
+} {{}}
+do_execsql_test 8.1.2 {
+  SELECT ~('' BETWEEN t0.c0 AND TRUE) FROM t0;
+} {-1}
+
+foreach {tn expr} {
+  1 " 0  ==  (34 BETWEEN c0 AND 33)"
+  2 " 1  !=  (34 BETWEEN c0 AND 33)"
+  3 "-1   <  (34 BETWEEN c0 AND 33)"
+  4 "-1  <=  (34 BETWEEN c0 AND 33)"
+  5 " 1   >  (34 BETWEEN c0 AND 33)"
+  6 " 1  >=  (34 BETWEEN c0 AND 33)"
+  7 " 1   -  (34 BETWEEN c0 AND 33)"
+  8 "-1   +  (34 BETWEEN c0 AND 33)"
+  9 " 1   |  (34 BETWEEN c0 AND 33)"
+ 10 " 1  <<  (34 BETWEEN c0 AND 33)"
+ 11 " 1  >>  (34 BETWEEN c0 AND 33)"
+ 12 " 1  ||  (34 BETWEEN c0 AND 33)"
+} {
+  do_execsql_test 8.3.$tn.1 "SELECT * FROM t0 WHERE $expr ORDER BY c0" { {} }
+  do_execsql_test 8.3.$tn.2 "SELECT ($expr) IS TRUE FROM t0"           { 1 }
+}
+
+do_execsql_test 8.4 {
+  CREATE TABLE t1(a, b);
+  INSERT INTO t1 VALUES(1, 2), (3, 4);
+  CREATE TABLE t2(x, y);
+}
+
+foreach {tn expr} {
+  1 " 0  ==  (a=0 AND y=1)"
+  2 " 1  !=  (a=0 AND y=1)"
+  3 "-1  <   (a=0 AND y=1)"
+  4 "-1  <=  (a=0 AND y=1)"
+  5 " 1   >  (a=0 AND y=1)"
+  6 " 1  >=  (a=0 AND y=1)"
+  7 " 1   -  (a=0 AND y=1)"
+  8 "-1   +  (a=0 AND y=1)"
+  9 " 1   |  (a=0 AND y=1)"
+  10 "1  <<  (a=0 AND y=1)"
+  11 "1  >>  (a=0 AND y=1)"
+  12 "1  ||  (a=0 AND y=1)"
+
+  13 " 0  ==  (10 BETWEEN y AND b)"
+  14 " 1  !=  (10 BETWEEN y AND b)"
+  15 "-1  <   (10 BETWEEN y AND b)"
+  16 "-1  <=  (10 BETWEEN y AND b)"
+  17 " 1   >  (10 BETWEEN y AND b)"
+  18 " 1  >=  (10 BETWEEN y AND b)"
+  19 " 1   -  (10 BETWEEN y AND b)"
+  20 "-1   +  (10 BETWEEN y AND b)"
+  21 " 1   |  (10 BETWEEN y AND b)"
+  22 " 1  <<  (10 BETWEEN y AND b)"
+  23 " 1  >>  (10 BETWEEN y AND b)"
+  24 " 1  ||  (10 BETWEEN y AND b)"
+
+  25 " 1  ||  (10 BETWEEN y AND b)"
+} {
+  do_execsql_test 8.5.$tn.1 "
+    SELECT * FROM t1 LEFT JOIN t2 WHERE $expr
+  " {1 2 {} {} 3 4 {} {}}
+
+  do_execsql_test 8.5.$tn.2 "
+    SELECT ($expr) IS TRUE FROM t1 LEFT JOIN t2
+  " {1 1}
+}
+
+# 2023-03-24 https://sqlite.org/forum/forumpost/79cf371080
+#
+reset_db
+do_execsql_test 9.0 {
+  CREATE TABLE t1(a INT, b INT);
+  CREATE INDEX t1x ON t1(a, abs(b));
+  CREATE TABLE t2(c INT, d INT);
+  INSERT INTO t1(a,b) VALUES(4,4),(5,-5),(5,20),(6,6);
+  INSERT INTO t2(c,d) VALUES(100,1),(200,1),(300,2);
+  SELECT *,
+    (SELECT max(c+abs(b)) FROM t2 GROUP BY d ORDER BY d LIMIT 1) AS subq
+   FROM t1 WHERE a=5;
+} {5 -5 205 5 20 220}
+
+# 2023-04-03 https://sqlite.org/forum/forumpost/44270909bb
+# and https://sqlite.org/forum/forumpost/e45108732c which are the
+# same problem, namely the failure to omit the EP_Collate property
+# from an expression node when changing it from TK_COLLATE into
+# TK_AGG_COLUMN because it resolves to an indexed expression.
+#
+reset_db
+do_execsql_test 10.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b TEXT);
+  CREATE INDEX t1x ON t1 (b, +b COLLATE NOCASE);
+  INSERT INTO t1(a,b) VALUES(1,'abcde');
+  SELECT * FROM t1 AS a0
+   WHERE (SELECT count(a0.b=+a0.b COLLATE NOCASE IN (b)) FROM t1 GROUP BY 2.5)
+   ORDER BY a0.b;
+} {1 abcde}
+do_execsql_test 10.1 {
+  CREATE TABLE t2(a TEXT);
+  INSERT INTO t2 VALUES('alice'),('bob'),('cindy'),('david');
+  CREATE INDEX t2x ON t2 (+a COLLATE NOCASE);
+  SELECT count(+a COLLATE NOCASE IN (SELECT 1)) AS x
+    FROM t2
+   GROUP BY SUBSTR(0,0);
+} 4
+
+# 2023-04-03 https://sqlite.org/forum/forumpost/409ebc7368
+# When a generated column appears in both an outer and an inner loop
+# (that is to say, the same table is used in both loops) and the
+# generated column is indexed and it is used inside an aggregate function,
+# make sure that the terms resolve to the correct aggregate.
+#
+do_execsql_test 11.0 {
+  CREATE TABLE t3 (a INT, b AS (-a));
+  CREATE INDEX t3x ON t3(b, a);
+  INSERT INTO t3(a) VALUES(44);
+  SELECT * FROM t3 AS a0
+   WHERE (SELECT sum(-a0.a=b) FROM t3 GROUP BY b)
+   GROUP BY b;
+} {44 -44}
+
+finish_test
diff --git a/test/indexexpr3.test b/test/indexexpr3.test
new file mode 100644
index 0000000000000000000000000000000000000000..76d3331f75a33311bc40e16ffb9c5ec5cc4086c8
--- /dev/null
+++ b/test/indexexpr3.test
@@ -0,0 +1,121 @@
+# 2024-10-05
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing indexes on expressions.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix indexexpr3
+
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, j);
+  INSERT INTO t1 VALUES(1, '{x:"one"}');
+  INSERT INTO t1 VALUES(2, '{x:"two"}');
+  INSERT INTO t1 VALUES(3, '{x:"three"}');
+
+  CREATE INDEX i1 ON t1( json_extract(j, '$.x') );
+  CREATE INDEX i2 ON t1( a, json_extract(j, '$.x') );
+}
+
+proc do_hasfunction_test {tn sql res} {
+  set nFunction 0
+  db eval "EXPLAIN $sql" x {
+    if {$x(opcode)=="Function"} {
+      incr nFunction 
+    }
+  }
+
+  do_execsql_test $tn "
+    SELECT $nFunction;
+    $sql
+  " $res
+}
+
+do_hasfunction_test 1.1 {
+  SELECT json_extract(j, '$.x') FROM t1 ORDER BY 1;
+} {
+  0 one three two
+}
+
+do_hasfunction_test 1.2 {
+  SELECT json_extract(j, '$.x') FROM t1 WHERE a=2
+} {
+  0 two
+}
+
+do_hasfunction_test 1.3 {
+  SELECT coalesce(json_extract(j, '$.x'), 'five') FROM t1 WHERE a=2
+} {
+  0 two
+}
+
+do_hasfunction_test 1.4 {
+  SELECT json_extract(j, '$.x') || '.two' FROM t1 WHERE a=2
+} {
+  0 two.two
+}
+
+do_hasfunction_test 1.5 {
+  SELECT json_insert( '{}', '$.y', json_extract(j, '$.x') ) FROM t1 WHERE a=2
+} {
+  2 {{"y":"two"}}
+}
+
+do_hasfunction_test 1.6 {
+  SELECT json_insert( '{}', '$.y', coalesce( json_extract(j, '$.x'), 'five' ) )
+  FROM t1 WHERE a=2
+} {
+  2 {{"y":"two"}}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 2.0 {
+  CREATE TABLE t1(a, b, j);
+  CREATE INDEX i1 ON t1( a, json_extract(j, '$.x') );
+}
+
+do_eqp_test 2.1 {
+  SELECT json_extract(j, '$.x') FROM t1 WHERE a=?
+} {
+  t1 USING COVERING INDEX i1
+}
+
+do_eqp_test 2.2 {
+  SELECT b, json_extract(j, '$.x') FROM t1 WHERE a=?
+} {
+  t1 USING INDEX i1
+}
+
+do_eqp_test 2.3 {
+  SELECT json_insert( '{}', json_extract(j, '$.x') ) FROM t1 WHERE a=?
+} {
+  t1 USING INDEX i1
+}
+
+do_eqp_test 2.4 {
+  SELECT sum( json_extract(j, '$.x') ) FROM t1 WHERE a=?
+} {
+  t1 USING COVERING INDEX i1
+}
+
+do_eqp_test 2.5 {
+  SELECT json_extract(j, '$.x'), sum( json_extract(j, '$.x') ) FROM t1 WHERE a=?
+} {
+  t1 USING INDEX i1
+}
+
+
+
+finish_test
+
diff --git a/test/indexfault.test b/test/indexfault.test
new file mode 100644
index 0000000000000000000000000000000000000000..0e65179a3238ee96a71c9ab8fe1c2e6289b661f6
--- /dev/null
+++ b/test/indexfault.test
@@ -0,0 +1,352 @@
+# 2011 August 08
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+source $testdir/malloc_common.tcl
+
+ifcapable !mergesort {
+  finish_test
+  return
+}
+
+set testprefix indexfault
+
+# Set up the custom fault-injector. This is further configured by using
+# different values for $::custom_filter and different implementations
+# of Tcl proc [xCustom] for each test case.
+#
+proc install_custom_faultsim {} {
+  set ::FAULTSIM(custom)            [list      \
+    -injectinstall   custom_injectinstall    \
+    -injectstart     custom_injectstart      \
+    -injectstop      custom_injectstop       \
+    -injecterrlist   {{1 {disk I/O error}}}  \
+    -injectuninstall custom_injectuninstall  \
+  ]
+  proc custom_injectinstall {} {
+    testvfs shmfault -default true
+    shmfault filter $::custom_filter
+    shmfault script xCustom
+  }
+  proc custom_injectuninstall {} {
+    catch {db  close}
+    catch {db2 close}
+    shmfault delete
+  }
+  set ::custom_ifail -1
+  set ::custom_nfail -1
+  proc custom_injectstart {iFail} {
+    set ::custom_ifail $iFail
+    set ::custom_nfail 0
+  }
+  proc custom_injectstop {} {
+    set ::custom_ifail -1
+    return $::custom_nfail
+  }
+}
+proc uninstall_custom_faultsim {} {
+  unset -nocomplain ::FAULTSIM(custom)
+}
+
+
+#-------------------------------------------------------------------------
+# These tests - indexfault-1.* - Build an index on a smallish table with
+# all different kinds of fault-injection. The CREATE INDEX is run once
+# with default options and once with a 50KB soft-heap-limit.
+#
+do_execsql_test 1.0 {
+  BEGIN;
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(randomblob(202));
+    INSERT INTO t1 SELECT randomblob(202) FROM t1;     --     2
+    INSERT INTO t1 SELECT randomblob(202) FROM t1;     --     4
+    INSERT INTO t1 SELECT randomblob(202) FROM t1;     --     8
+    INSERT INTO t1 SELECT randomblob(202) FROM t1;     --    16
+    INSERT INTO t1 SELECT randomblob(202) FROM t1;     --    32
+    INSERT INTO t1 SELECT randomblob(202) FROM t1;     --    64
+    INSERT INTO t1 SELECT randomblob(202) FROM t1;     --   128
+    INSERT INTO t1 SELECT randomblob(202) FROM t1;     --   256
+  COMMIT;
+}
+faultsim_save_and_close
+
+do_faultsim_test 1.1 -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { CREATE INDEX i1 ON t1(x) }
+  faultsim_test_result {0 {}} 
+  faultsim_integrity_check
+}
+ifcapable memorymanage {
+  set soft_limit [sqlite3_soft_heap_limit 50000]
+  do_faultsim_test 2.1 -prep {
+    faultsim_restore_and_reopen
+  } -body {
+    execsql { CREATE INDEX i1 ON t1(x) }
+    faultsim_test_result {0 {}} 
+  }
+  sqlite3_soft_heap_limit $soft_limit
+}
+
+#-------------------------------------------------------------------------
+# These are similar to the indexfault-1.* tests, except they create an
+# index with more than one column.
+#
+sqlite3 db test.db
+do_execsql_test 2.0 {
+  BEGIN;
+    DROP TABLE IF EXISTS t1;
+    CREATE TABLE t1(t,u,v,w,x,y,z);
+    INSERT INTO t1 VALUES(
+      randomblob(30), randomblob(30), randomblob(30), randomblob(30),
+      randomblob(30), randomblob(30), randomblob(30)
+    );
+    INSERT INTO t1 SELECT 
+      randomblob(30), randomblob(30), randomblob(30), randomblob(30),
+      randomblob(30), randomblob(30), randomblob(30) FROM t1;         -- 2
+    INSERT INTO t1 SELECT 
+      randomblob(30), randomblob(30), randomblob(30), randomblob(30),
+      randomblob(30), randomblob(30), randomblob(30) FROM t1;         -- 4
+    INSERT INTO t1 SELECT 
+      randomblob(30), randomblob(30), randomblob(30), randomblob(30),
+      randomblob(30), randomblob(30), randomblob(30) FROM t1;         -- 8
+    INSERT INTO t1 SELECT 
+      randomblob(30), randomblob(30), randomblob(30), randomblob(30),
+      randomblob(30), randomblob(30), randomblob(30) FROM t1;         -- 16
+    INSERT INTO t1 SELECT 
+      randomblob(30), randomblob(30), randomblob(30), randomblob(30),
+      randomblob(30), randomblob(30), randomblob(30) FROM t1;         -- 32
+    INSERT INTO t1 SELECT 
+      randomblob(30), randomblob(30), randomblob(30), randomblob(30),
+      randomblob(30), randomblob(30), randomblob(30) FROM t1;         -- 64
+    INSERT INTO t1 SELECT 
+      randomblob(30), randomblob(30), randomblob(30), randomblob(30),
+      randomblob(30), randomblob(30), randomblob(30) FROM t1;         -- 128
+  COMMIT;
+}
+faultsim_save_and_close
+
+do_faultsim_test 2.1 -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { CREATE INDEX i1 ON t1(t,u,v,w,x,y,z) }
+  faultsim_test_result {0 {}} 
+  faultsim_integrity_check
+}
+ifcapable memorymanage {
+  set soft_limit [sqlite3_soft_heap_limit 50000]
+  do_faultsim_test 2.2 -prep {
+    faultsim_restore_and_reopen
+  } -body {
+    execsql { CREATE INDEX i1 ON t1(t,u,v,w,x,y,z) }
+    faultsim_test_result {0 {}} 
+  }
+  sqlite3_soft_heap_limit $soft_limit
+}
+
+#-------------------------------------------------------------------------
+# The following tests - indexfault-2.* - all attempt to build a index
+# on table t1 in the main database with injected IO errors. Individual
+# test cases work as follows:
+#
+#   3.1: IO errors injected into xOpen() calls.
+#   3.2: As 7.1, but with a low (50KB) soft-heap-limit.
+#
+#   3.3: IO errors injected into the first 200 write() calls made on the
+#        second temporary file.
+#   3.4: As 7.3, but with a low (50KB) soft-heap-limit.
+#
+#   3.5: After a certain amount of data has been read from the main database
+#        file (and written into the temporary b-tree), sqlite3_release_memory()
+#        is called to free as much memory as possible. This causes the temp
+#        b-tree to be flushed to disk. So that before its contents can be 
+#        transfered to a PMA they must be read back from disk - creating extra
+#        opportunities for IO errors.
+#
+install_custom_faultsim
+
+# Set up a table to build indexes on. Save the setup using the 
+# [faultsim_save_and_close] mechanism.
+# 
+sqlite3 db test.db
+do_execsql_test 3.0 {
+  BEGIN;
+    DROP TABLE IF EXISTS t1;
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(randomblob(11000));
+    INSERT INTO t1 SELECT randomblob(11001) FROM t1;     --     2
+    INSERT INTO t1 SELECT randomblob(11002) FROM t1;     --     4
+    INSERT INTO t1 SELECT randomblob(11003) FROM t1;     --     8
+    INSERT INTO t1 SELECT randomblob(11004) FROM t1;     --    16
+    INSERT INTO t1 SELECT randomblob(11005) FROM t1;     --    32
+    INSERT INTO t1 SELECT randomblob(11006) FROM t1;     --    64
+    INSERT INTO t1 SELECT randomblob(11007) FROM t1;     --   128
+    INSERT INTO t1 SELECT randomblob(11008) FROM t1;     --   256
+    INSERT INTO t1 SELECT randomblob(11009) FROM t1;     --   512
+  COMMIT;
+}
+faultsim_save_and_close
+
+set ::custom_filter xOpen
+proc xCustom {args} {
+  incr ::custom_ifail -1
+  if {$::custom_ifail==0} {
+    incr ::custom_nfail
+    return "SQLITE_IOERR"
+  }
+  return "SQLITE_OK"
+}
+do_faultsim_test 3.1 -faults custom -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { CREATE INDEX i1 ON t1(x) }
+  faultsim_test_result {0 {}} 
+}
+ifcapable memorymanage {
+  set soft_limit [sqlite3_soft_heap_limit 50000]
+  do_faultsim_test 3.2 -faults custom -prep {
+    faultsim_restore_and_reopen
+  } -body {
+    execsql { CREATE INDEX i1 ON t1(x) }
+    faultsim_test_result {0 {}} 
+  }
+  sqlite3_soft_heap_limit $soft_limit
+}
+
+set ::custom_filter {xOpen xWrite}
+proc xCustom {method args} {
+  if {$method == "xOpen"} {
+    if {[lindex $args 0] == ""} {
+      incr ::nTmpOpen 1
+      if {$::nTmpOpen == 3} { return "failme" }
+    }
+    return "SQLITE_OK"
+  }
+  if {$::custom_ifail<200 && [lindex $args 1] == "failme"} {
+    incr ::custom_ifail -1
+    if {$::custom_ifail==0} {
+      incr ::custom_nfail
+      return "SQLITE_IOERR"
+    }
+  }
+  return "SQLITE_OK"
+}
+
+do_faultsim_test 3.3 -faults custom -prep {
+  faultsim_restore_and_reopen
+  set ::nTmpOpen 0
+} -body {
+  execsql { CREATE INDEX i1 ON t1(x) }
+  faultsim_test_result {0 {}} 
+}
+
+ifcapable memorymanage {
+  set soft_limit [sqlite3_soft_heap_limit 50000]
+  do_faultsim_test 3.4 -faults custom -prep {
+    faultsim_restore_and_reopen
+    set ::nTmpOpen 0
+  } -body {
+    execsql { CREATE INDEX i1 ON t1(x) }
+    faultsim_test_result {0 {}} 
+  }
+  sqlite3_soft_heap_limit $soft_limit
+}
+
+uninstall_custom_faultsim
+
+#-------------------------------------------------------------------------
+# Test 4: After a certain amount of data has been read from the main database
+# file (and written into the temporary b-tree), sqlite3_release_memory() is
+# called to free as much memory as possible. This causes the temp b-tree to be
+# flushed to disk. So that before its contents can be transfered to a PMA they
+# must be read back from disk - creating extra opportunities for IO errors.
+# 
+install_custom_faultsim
+
+catch { db close }
+forcedelete test.db
+sqlite3 db test.db
+
+do_execsql_test 4.0 {
+  BEGIN;
+    DROP TABLE IF EXISTS t1;
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(randomblob(11000));
+    INSERT INTO t1 SELECT randomblob(11001) FROM t1;     --     2
+    INSERT INTO t1 SELECT randomblob(11002) FROM t1;     --     4
+    INSERT INTO t1 SELECT randomblob(11003) FROM t1;     --     8
+    INSERT INTO t1 SELECT randomblob(11004) FROM t1;     --    16
+    INSERT INTO t1 SELECT randomblob(11005) FROM t1;     --    32
+    INSERT INTO t1 SELECT randomblob(11005) FROM t1;     --    64
+  COMMIT;
+}
+faultsim_save_and_close
+
+testvfs tvfs 
+tvfs script xRead
+tvfs filter xRead
+set ::nRead 0
+proc xRead {method file args} {
+  if {[file tail $file] == "test.db"} { incr ::nRead }
+}
+
+do_test 4.1 {
+  sqlite3 db test.db -vfs tvfs
+  execsql { CREATE INDEX i1 ON t1(x) }
+} {}
+
+db close
+tvfs delete
+
+set ::custom_filter xRead
+proc xCustom {method file args} {
+  incr ::nReadCall
+  if {$::nReadCall >= ($::nRead/5)} {
+    if {$::nReadCall == ($::nRead/5)} {
+      set nByte [sqlite3_release_memory [expr 64*1024*1024]]
+      sqlite3_soft_heap_limit 20000
+    }
+    if {$file == ""} {
+      incr ::custom_ifail -1
+      if {$::custom_ifail==0} {
+        incr ::custom_nfail
+        return "SQLITE_IOERR"
+      }
+    }
+  }
+  return "SQLITE_OK"
+}
+
+do_faultsim_test 4.2 -faults custom -prep {
+  faultsim_restore_and_reopen
+  set ::nReadCall 0
+  sqlite3_soft_heap_limit 0
+} -body {
+  execsql { CREATE INDEX i1 ON t1(x) }
+  faultsim_test_result {0 {}} 
+}
+
+do_faultsim_test 5 -prep {
+  reset_db
+} -body {
+  execsql { 
+ CREATE TABLE reallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallyreallylongname(a PRIMARY KEY) WITHOUT ROWID;
+  }
+} -test {
+  faultsim_test_result {0 {}} 
+}
+
+uninstall_custom_faultsim
+
+finish_test
diff --git a/test/init.test b/test/init.test
new file mode 100644
index 0000000000000000000000000000000000000000..7cb18f492ac142b7d1fccb89b3e7aba6b95b8abc
--- /dev/null
+++ b/test/init.test
@@ -0,0 +1,82 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the effects of a failure in 
+# sqlite3_initialize().
+#
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+if {[db eval {SELECT sqlite_compileoption_used('THREADSAFE=0')}]} {
+  finish_test
+  return
+}
+
+db close
+
+foreach {t failed rc started} {
+  1.1 {}       SQLITE_OK    {mutex mem pcache}
+  1.2 {mutex}  SQLITE_ERROR {}
+  1.3 {mem}    SQLITE_ERROR {mutex}
+  1.4 {pcache} SQLITE_ERROR {mutex mem}
+} {
+  do_test init-$t.1 {
+    eval init_wrapper_install $failed
+    sqlite3_initialize
+  } $rc
+  do_test init-$t.2 {
+    init_wrapper_query
+  } $started
+  do_test init-$t.3 {
+    sqlite3_shutdown
+    init_wrapper_query
+  } {}
+  do_test init-$t.4 {
+    sqlite3_initialize
+  } $rc
+  do_test init-$t.5 {
+    init_wrapper_query
+  } $started
+  do_test init-$t.6 {
+    init_wrapper_clear
+    sqlite3_initialize
+  } SQLITE_OK
+  do_test init-$t.7 {
+    init_wrapper_query
+  } {mutex mem pcache}
+  do_test init-$t.8 {
+    init_wrapper_uninstall
+  } {}
+}
+
+source $testdir/malloc_common.tcl
+if {$MEMDEBUG} {
+  do_malloc_test init-2 -tclprep {
+    db close
+    init_wrapper_install
+  } -tclbody {
+    set rc [sqlite3_initialize]
+    if {[string match "SQLITE*NOMEM" $rc]} {error "out of memory"}
+  } -cleanup {
+    set zRepeat "transient"
+    if {$::iRepeat} {set zRepeat "persistent"}
+    do_test init-2.$zRepeat.$::n.x {
+      init_wrapper_clear
+      sqlite3_initialize
+    } SQLITE_OK
+    init_wrapper_uninstall
+  }
+}
+
+autoinstall_test_functions
+finish_test
diff --git a/test/insert.test b/test/insert.test
new file mode 100644
index 0000000000000000000000000000000000000000..51e62268dbe06d86191761e38d7332e78ffa2135
--- /dev/null
+++ b/test/insert.test
@@ -0,0 +1,603 @@
+# 2001-09-15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the INSERT statement.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Try to insert into a non-existant table.
+#
+do_test insert-1.1 {
+  set v [catch {execsql {INSERT INTO test1 VALUES(1,2,3)}} msg]
+  lappend v $msg
+} {1 {no such table: test1}}
+
+# Try to insert into sqlite_master
+#
+do_test insert-1.2 {
+  set v [catch {execsql {INSERT INTO sqlite_master VALUES(1,2,3,4)}} msg]
+  lappend v $msg
+} {1 {table sqlite_master may not be modified}}
+
+# Try to insert the wrong number of entries.
+#
+do_test insert-1.3 {
+  execsql {CREATE TABLE test1(one int, two int, three int)}
+  set v [catch {execsql {INSERT INTO test1 VALUES(1,2)}} msg]
+  lappend v $msg
+} {1 {table test1 has 3 columns but 2 values were supplied}}
+do_test insert-1.3b {
+  set v [catch {execsql {INSERT INTO test1 VALUES(1,2,3,4)}} msg]
+  lappend v $msg
+} {1 {table test1 has 3 columns but 4 values were supplied}}
+do_test insert-1.3c {
+  set v [catch {execsql {INSERT INTO test1(one,two) VALUES(1,2,3,4)}} msg]
+  lappend v $msg
+} {1 {4 values for 2 columns}}
+do_test insert-1.3d {
+  set v [catch {execsql {INSERT INTO test1(one,two) VALUES(1)}} msg]
+  lappend v $msg
+} {1 {1 values for 2 columns}}
+
+# Try to insert into a non-existant column of a table.
+#
+do_test insert-1.4 {
+  set v [catch {execsql {INSERT INTO test1(one,four) VALUES(1,2)}} msg]
+  lappend v $msg
+} {1 {table test1 has no column named four}}
+
+# Make sure the inserts actually happen
+#
+do_test insert-1.5 {
+  execsql {INSERT INTO test1 VALUES(1,2,3)}
+  execsql {SELECT * FROM test1}
+} {1 2 3}
+do_test insert-1.5b {
+  execsql {INSERT INTO test1 VALUES(4,5,6)}
+  execsql {SELECT * FROM test1 ORDER BY one}
+} {1 2 3 4 5 6}
+do_test insert-1.5c {
+  execsql {INSERT INTO test1 VALUES(7,8,9)}
+  execsql {SELECT * FROM test1 ORDER BY one}
+} {1 2 3 4 5 6 7 8 9}
+
+do_test insert-1.6 {
+  execsql {DELETE FROM test1}
+  execsql {INSERT INTO test1(one,two) VALUES(1,2)}
+  execsql {SELECT * FROM test1 ORDER BY one}
+} {1 2 {}}
+do_test insert-1.6b {
+  execsql {INSERT INTO test1(two,three) VALUES(5,6)}
+  execsql {SELECT * FROM test1 ORDER BY one}
+} {{} 5 6 1 2 {}}
+do_test insert-1.6c {
+  execsql {INSERT INTO test1(three,one) VALUES(7,8)}
+  execsql {SELECT * FROM test1 ORDER BY one}
+} {{} 5 6 1 2 {} 8 {} 7}
+
+# A table to use for testing default values
+#
+do_test insert-2.1 {
+  execsql {
+    CREATE TABLE test2(
+      f1 int default -111, 
+      f2 real default +4.32,
+      f3 int default +222,
+      f4 int default 7.89
+    )
+  }
+  execsql {SELECT * from test2}
+} {}
+do_test insert-2.2 {
+  execsql {INSERT INTO test2(f1,f3) VALUES(+10,-10)}
+  execsql {SELECT * FROM test2}
+} {10 4.32 -10 7.89}
+do_test insert-2.3 {
+  execsql {INSERT INTO test2(f2,f4) VALUES(1.23,-3.45)}
+  execsql {SELECT * FROM test2 WHERE f1==-111}
+} {-111 1.23 222 -3.45}
+do_test insert-2.4 {
+  execsql {INSERT INTO test2(f1,f2,f4) VALUES(77,+1.23,3.45)}
+  execsql {SELECT * FROM test2 WHERE f1==77}
+} {77 1.23 222 3.45}
+do_test insert-2.10 {
+  execsql {
+    DROP TABLE test2;
+    CREATE TABLE test2(
+      f1 int default 111, 
+      f2 real default -4.32,
+      f3 text default hi,
+      f4 text default 'abc-123',
+      f5 varchar(10)
+    )
+  }
+  execsql {SELECT * from test2}
+} {}
+do_test insert-2.11 {
+  execsql {INSERT INTO test2(f2,f4) VALUES(-2.22,'hi!')}
+  execsql {SELECT * FROM test2}
+} {111 -2.22 hi hi! {}}
+do_test insert-2.12 {
+  execsql {INSERT INTO test2(f1,f5) VALUES(1,'xyzzy')}
+  execsql {SELECT * FROM test2 ORDER BY f1}
+} {1 -4.32 hi abc-123 xyzzy 111 -2.22 hi hi! {}}
+
+# Do additional inserts with default values, but this time
+# on a table that has indices.  In particular we want to verify
+# that the correct default values are inserted into the indices.
+#
+do_test insert-3.1 {
+  execsql {
+    DELETE FROM test2;
+    CREATE INDEX index9 ON test2(f1,f2);
+    CREATE INDEX indext ON test2(f4,f5);
+    SELECT * from test2;
+  }
+} {}
+
+# Update for sqlite3 v3:
+# Change the 111 to '111' in the following two test cases, because
+# the default value is being inserted as a string. TODO: It shouldn't be.
+do_test insert-3.2 {
+  execsql {INSERT INTO test2(f2,f4) VALUES(-3.33,'hum')}
+  execsql {SELECT * FROM test2 WHERE f1='111' AND f2=-3.33}
+} {111 -3.33 hi hum {}}
+do_test insert-3.3 {
+  execsql {INSERT INTO test2(f1,f2,f5) VALUES(22,-4.44,'wham')}
+  execsql {SELECT * FROM test2 WHERE f1='111' AND f2=-3.33}
+} {111 -3.33 hi hum {}}
+do_test insert-3.4 {
+  execsql {SELECT * FROM test2 WHERE f1=22 AND f2=-4.44}
+} {22 -4.44 hi abc-123 wham}
+ifcapable {reindex} {
+  do_test insert-3.5 {
+    execsql REINDEX
+  } {}
+}
+integrity_check insert-3.5
+
+# Test of expressions in the VALUES clause
+#
+do_test insert-4.1 {
+  execsql {
+    CREATE TABLE t3(a,b,c);
+    INSERT INTO t3 VALUES(1+2+3,4,5);
+    SELECT * FROM t3;
+  }
+} {6 4 5}
+do_test insert-4.2 {
+  ifcapable subquery {
+    execsql {INSERT INTO t3 VALUES((SELECT max(a) FROM t3)+1,5,6);}
+  } else {
+    set maxa [execsql {SELECT max(a) FROM t3}]
+    execsql "INSERT INTO t3 VALUES($maxa+1,5,6);"
+  }
+  execsql {
+    SELECT * FROM t3 ORDER BY a;
+  }
+} {6 4 5 7 5 6}
+ifcapable subquery {
+  do_test insert-4.3 {
+    catchsql {
+      INSERT INTO t3 VALUES((SELECT max(a) FROM t3)+1,t3.a,6);
+      SELECT * FROM t3 ORDER BY a;
+    }
+  } {1 {no such column: t3.a}}
+}
+do_test insert-4.4 {
+  ifcapable subquery {
+    execsql {INSERT INTO t3 VALUES((SELECT b FROM t3 WHERE a=0),6,7);}
+  } else {
+    set b [execsql {SELECT b FROM t3 WHERE a = 0}]
+    if {$b==""} {set b NULL}
+    execsql "INSERT INTO t3 VALUES($b,6,7);"
+  }
+  execsql {
+    SELECT * FROM t3 ORDER BY a;
+  }
+} {{} 6 7 6 4 5 7 5 6}
+do_test insert-4.5 {
+  execsql {
+    SELECT b,c FROM t3 WHERE a IS NULL;
+  }
+} {6 7}
+do_test insert-4.6 {
+  catchsql {
+    INSERT INTO t3 VALUES(notafunc(2,3),2,3);
+  }
+} {1 {no such function: notafunc}}
+do_test insert-4.7 {
+  execsql {
+    INSERT INTO t3 VALUES(min(1,2,3),max(1,2,3),99);
+    SELECT * FROM t3 WHERE c=99;
+  }
+} {1 3 99}
+
+# Test the ability to insert from a temporary table into itself.
+# Ticket #275.
+#
+ifcapable tempdb {
+  do_test insert-5.1 {
+    execsql {
+      CREATE TEMP TABLE t4(x);
+      INSERT INTO t4 VALUES(1);
+      SELECT * FROM t4;
+    }
+  } {1}
+  do_test insert-5.2 {
+    execsql {
+      INSERT INTO t4 SELECT x+1 FROM t4;
+      SELECT * FROM t4;
+    }
+  } {1 2}
+  ifcapable {explain} {
+    do_test insert-5.3 {
+      # verify that a temporary table is used to copy t4 to t4
+      set x [execsql {
+        EXPLAIN INSERT INTO t4 SELECT x+2 FROM t4;
+      }]
+      expr {[lsearch $x OpenEphemeral]>0}
+    } {1}
+  }
+  
+  do_test insert-5.4 {
+    # Verify that table "test1" begins on page 3.  This should be the same
+    # page number used by "t4" above.
+    #
+    # Update for v3 - the first table now begins on page 2 of each file, not 3.
+    execsql {
+      SELECT rootpage FROM sqlite_master WHERE name='test1';
+    }
+  } [expr $AUTOVACUUM?3:2]
+  do_test insert-5.5 {
+    # Verify that "t4" begins on page 3.
+    #
+    # Update for v3 - the first table now begins on page 2 of each file, not 3.
+    execsql {
+      SELECT rootpage FROM sqlite_temp_master WHERE name='t4';
+    }
+  } {2}
+  do_test insert-5.6 {
+    # This should not use an intermediate temporary table.
+    execsql {
+      INSERT INTO t4 SELECT one FROM test1 WHERE three=7;
+      SELECT * FROM t4
+    }
+  } {1 2 8}
+  ifcapable {explain} {
+    do_test insert-5.7 {
+      # verify that no temporary table is used to copy test1 to t4
+      set x [execsql {
+        EXPLAIN INSERT INTO t4 SELECT one FROM test1;
+      }]
+      expr {[lsearch $x OpenTemp]>0}
+    } {0}
+  }
+}
+
+# Ticket #334:  REPLACE statement corrupting indices.
+#
+ifcapable conflict {
+  # The REPLACE command is not available if SQLITE_OMIT_CONFLICT is 
+  # defined at compilation time.
+  do_test insert-6.1 {
+    execsql {
+      CREATE TABLE t1(a INTEGER PRIMARY KEY, b UNIQUE);
+      INSERT INTO t1 VALUES(1,2);
+      INSERT INTO t1 VALUES(2,3);
+      SELECT b FROM t1 WHERE b=2;
+    }
+  } {2}
+  do_test insert-6.2 {
+    execsql {
+      REPLACE INTO t1 VALUES(1,4);
+      SELECT b FROM t1 WHERE b=2;
+    }
+  } {}
+  do_test insert-6.3 {
+    execsql {
+      UPDATE OR REPLACE t1 SET a=2 WHERE b=4;
+      SELECT * FROM t1 WHERE b=4;
+    }
+  } {2 4}
+  do_test insert-6.4 {
+    execsql {
+      SELECT * FROM t1 WHERE b=3;
+    }
+  } {}
+  ifcapable {reindex} {
+    do_test insert-6.5 {
+      execsql REINDEX
+    } {}
+  }
+  do_test insert-6.6 {
+    execsql {
+      DROP TABLE t1;
+    }
+  } {}
+}
+
+# Test that the special optimization for queries of the form 
+# "SELECT max(x) FROM tbl" where there is an index on tbl(x) works with 
+# INSERT statments.
+do_test insert-7.1 {
+  execsql {
+    CREATE TABLE t1(a);
+    INSERT INTO t1 VALUES(1);
+    INSERT INTO t1 VALUES(2);
+    CREATE INDEX i1 ON t1(a);
+  }
+} {}
+do_test insert-7.2 {
+  execsql {
+    INSERT INTO t1 SELECT max(a) FROM t1;
+  }
+} {}
+do_test insert-7.3 {
+  execsql {
+    SELECT a FROM t1;
+  }
+} {1 2 2}
+
+# Ticket #1140:  Check for an infinite loop in the algorithm that tests
+# to see if the right-hand side of an INSERT...SELECT references the left-hand
+# side.
+#
+ifcapable subquery&&compound {
+  do_test insert-8.1 {
+    execsql {
+      INSERT INTO t3 SELECT * FROM (SELECT * FROM t3 UNION ALL SELECT 1,2,3)
+    }
+  } {}
+}
+
+# Make sure the rowid cache in the VDBE is reset correctly when
+# an explicit rowid is given.
+#
+do_test insert-9.1 {
+  execsql {
+    CREATE TABLE t5(x);
+    INSERT INTO t5 VALUES(1);
+    INSERT INTO t5 VALUES(2);
+    INSERT INTO t5 VALUES(3);
+    INSERT INTO t5(rowid, x) SELECT nullif(x*2+10,14), x+100 FROM t5;
+    SELECT rowid, x FROM t5;
+  }
+} {1 1 2 2 3 3 12 101 13 102 16 103}
+do_test insert-9.2 {
+  execsql {
+    CREATE TABLE t6(x INTEGER PRIMARY KEY, y);
+    INSERT INTO t6 VALUES(1,1);
+    INSERT INTO t6 VALUES(2,2);
+    INSERT INTO t6 VALUES(3,3);
+    INSERT INTO t6 SELECT nullif(y*2+10,14), y+100 FROM t6;
+    SELECT x, y FROM t6;
+  }
+} {1 1 2 2 3 3 12 101 13 102 16 103}
+
+# Multiple VALUES clauses
+#
+ifcapable compound {
+  do_test insert-10.1 {
+    execsql {
+      CREATE TABLE t10(a,b,c);
+      INSERT INTO t10 VALUES(1,2,3), (4,5,6), (7,8,9);
+      SELECT * FROM t10;
+    }
+  } {1 2 3 4 5 6 7 8 9}
+  do_test insert-10.2 {
+    catchsql {
+      INSERT INTO t10 VALUES(11,12,13), (14,15), (16,17,28);
+    }
+  } {1 {all VALUES must have the same number of terms}}
+}
+
+# Need for the OP_SoftNull opcode
+#
+do_execsql_test insert-11.1 {
+  CREATE TABLE t11a AS SELECT '123456789' AS x;
+  CREATE TABLE t11b (a INTEGER PRIMARY KEY, b, c);
+  INSERT INTO t11b SELECT x, x, x FROM t11a;
+  SELECT quote(a), quote(b), quote(c) FROM t11b;
+} {123456789 '123456789' '123456789'}
+
+
+# More columns of input than there are columns in the table.
+# Ticket http://www.sqlite.org/src/info/e9654505cfda9361
+#
+do_execsql_test insert-12.1 {
+  CREATE TABLE t12a(a,b,c,d,e,f,g);
+  INSERT INTO t12a VALUES(101,102,103,104,105,106,107);
+  CREATE TABLE t12b(x);
+  INSERT INTO t12b(x,rowid,x,x,x,x,x) SELECT * FROM t12a;
+  SELECT rowid, x FROM t12b;
+} {102 101}
+do_execsql_test insert-12.2 {
+  CREATE TABLE tab1( value INTEGER);
+  INSERT INTO tab1 (value, _rowid_) values( 11, 1);
+  INSERT INTO tab1 (value, _rowid_) SELECT 22,999;
+  SELECT * FROM tab1;
+} {11 22}
+do_execsql_test insert-12.3 {
+  CREATE TABLE t12c(a, b DEFAULT 'xyzzy', c);
+  INSERT INTO t12c(a, rowid, c) SELECT 'one', 999, 'two';
+  SELECT * FROM t12c;
+} {one xyzzy two}
+
+# 2018-06-11.  From OSSFuzz.  A column cache malfunction in
+# the constraint checking on an index of expressions causes
+# an assertion fault in a REPLACE.  Ticket
+# https://www.sqlite.org/src/info/c2432ef9089ee73b
+#
+do_execsql_test insert-13.1 {
+  DROP TABLE IF EXISTS t13;
+  CREATE TABLE t13(a INTEGER PRIMARY KEY,b UNIQUE);
+  CREATE INDEX t13x1 ON t13(-b=b);
+  INSERT INTO t13 VALUES(1,5),(6,2);
+  REPLACE INTO t13 SELECT b,0 FROM t13;
+  SELECT * FROM t13 ORDER BY +b;
+} {2 0 6 2 1 5}
+
+# 2019-01-17.  From the chromium fuzzer.
+#
+do_execsql_test insert-14.1 {
+  DROP TABLE IF EXISTS t14;
+  CREATE TABLE t14(x INTEGER PRIMARY KEY);
+  INSERT INTO t14 VALUES(CASE WHEN 1 THEN null END);
+  SELECT x FROM t14;
+} {1}
+
+integrity_check insert-14.2
+
+# 2019-08-12.
+#
+do_execsql_test insert-15.1 {
+  DROP TABLE IF EXISTS t1;
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b TEXT);
+  CREATE INDEX i1 ON t1(b);
+  CREATE TABLE t2(a, b);
+  INSERT INTO t2 VALUES(4, randomblob(31000));
+  INSERT INTO t2 VALUES(4, randomblob(32000));
+  INSERT INTO t2 VALUES(4, randomblob(33000));
+  REPLACE INTO t1 SELECT a, b FROM t2;
+  SELECT a, length(b) FROM t1;
+} {4 33000}
+
+# 2019-10-16
+# ticket https://www.sqlite.org/src/info/a8a4847a2d96f5de
+# On a REPLACE INTO, if an AFTER trigger adds back the conflicting
+# row, you can end up with the wrong number of rows in an index.
+#
+db close
+sqlite3 db :memory:
+do_catchsql_test insert-16.1 {
+  PRAGMA recursive_triggers = true;
+  CREATE TABLE t0(c0,c1);
+  CREATE UNIQUE INDEX i0 ON t0(c0);
+  INSERT INTO t0(c0,c1) VALUES(123,1);
+  CREATE TRIGGER tr0 AFTER DELETE ON t0
+  BEGIN
+    INSERT INTO t0 VALUES(123,2);
+  END;
+  REPLACE INTO t0(c0,c1) VALUES(123,3);
+} {1 {UNIQUE constraint failed: t0.c0}}
+do_execsql_test insert-16.2 {
+  SELECT * FROM t0;
+} {123 1}
+integrity_check insert-16.3
+do_catchsql_test insert-16.4 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+  CREATE INDEX t1b ON t1(b);
+  INSERT INTO t1 VALUES(1, 'one');
+  CREATE TRIGGER tr3 AFTER DELETE ON t1 BEGIN
+    INSERT INTO t1 VALUES(1, 'three');
+  END;
+  REPLACE INTO t1 VALUES(1, 'two');
+} {1 {UNIQUE constraint failed: t1.a}}
+integrity_check insert-16.5
+do_catchsql_test insert-16.6 {
+  PRAGMA foreign_keys = 1;
+  CREATE TABLE p1(a, b UNIQUE);
+  CREATE TABLE c1(c, d REFERENCES p1(b) ON DELETE CASCADE);
+  CREATE TRIGGER tr6 AFTER DELETE ON c1 BEGIN
+    INSERT INTO p1 VALUES(4, 1);
+  END;
+  INSERT INTO p1 VALUES(1, 1);
+  INSERT INTO c1 VALUES(2, 1);
+  REPLACE INTO p1 VALUES(3, 1);2
+} {1 {UNIQUE constraint failed: p1.b}}
+integrity_check insert-16.7
+
+# 2019-10-25 ticket c1e19e12046d23fe
+do_catchsql_test insert-17.1 {
+  PRAGMA temp.recursive_triggers = true;
+  DROP TABLE IF EXISTS t0;
+  CREATE TABLE t0(aa, bb);
+  CREATE UNIQUE INDEX t0bb ON t0(bb);
+  CREATE TRIGGER "r17.1" BEFORE DELETE ON t0
+    BEGIN INSERT INTO t0(aa,bb) VALUES(99,1);
+  END;
+  INSERT INTO t0(aa,bb) VALUES(10,20);
+  REPLACE INTO t0(aa,bb) VALUES(30,20);
+} {1 {UNIQUE constraint failed: t0.rowid}}
+integrity_check insert-17.2
+do_catchsql_test insert-17.3 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a, b UNIQUE, c UNIQUE);
+  INSERT INTO t1(a,b,c) VALUES(1,1,1),(2,2,2),(3,3,3),(4,4,4);
+  CREATE TRIGGER "r17.3" AFTER DELETE ON t1 WHEN OLD.c<>3 BEGIN
+    INSERT INTO t1(rowid,a,b,c) VALUES(100,100,100,3);
+  END;
+  REPLACE INTO t1(rowid,a,b,c) VALUES(200,1,2,3);
+} {1 {UNIQUE constraint failed: t1.c}}
+integrity_check insert-17.4
+do_execsql_test insert-17.5 {
+  CREATE TABLE t2(a INTEGER PRIMARY KEY, b);
+  CREATE UNIQUE INDEX t2b ON t2(b);
+  INSERT INTO t2(a,b) VALUES(1,1),(2,2),(3,3),(4,4);
+  CREATE TABLE fire(x);
+  CREATE TRIGGER t2r1 AFTER DELETE ON t2 BEGIN
+    INSERT INTO fire VALUES(old.a);
+  END;
+  UPDATE OR REPLACE t2 SET a=4, b=3 WHERE a=1;
+  SELECT *, 'x' FROM t2 ORDER BY a;
+} {2 2 x 4 3 x}
+do_execsql_test insert-17.6 {
+  SELECT x FROM fire ORDER BY x;
+} {3 4}
+do_execsql_test insert-17.7 {
+  DELETE FROM t2;
+  DELETE FROM fire;
+  INSERT INTO t2(a,b) VALUES(1,1),(2,2),(3,3),(4,4);
+  UPDATE OR REPLACE t2 SET a=1, b=3 WHERE a=1;
+  SELECT *, 'x' FROM t2 ORDER BY a;
+} {1 3 x 2 2 x 4 4 x}
+do_execsql_test insert-17.8 {
+  SELECT x FROM fire ORDER BY x;
+} {3}
+do_execsql_test insert-17.10 {
+  CREATE TABLE t3(a INTEGER PRIMARY KEY, b INT, c INT, d INT);
+  CREATE UNIQUE INDEX t3bpi ON t3(b) WHERE c<=d;
+  CREATE UNIQUE INDEX t3d ON t3(d);
+  INSERT INTO t3(a,b,c,d) VALUES(1,1,1,1),(2,1,3,2),(3,4,5,6);
+  CREATE TRIGGER t3r1 AFTER DELETE ON t3 BEGIN
+    SELECT 'hi';
+  END;
+  REPLACE INTO t3(a,b,c,d) VALUES(4,4,8,9);
+} {}
+do_execsql_test insert-17.11 {
+  SELECT *, 'x' FROM t3 ORDER BY a;
+} {1 1 1 1 x 2 1 3 2 x 4 4 8 9 x}
+do_execsql_test insert-17.12 {
+  REPLACE INTO t3(a,b,c,d) VALUES(5,1,11,2);
+  SELECT *, 'x' FROM t3 ORDER BY a;
+} {1 1 1 1 x 4 4 8 9 x 5 1 11 2 x}
+
+do_execsql_test insert-17.13 {
+  DELETE FROM t3;
+  INSERT INTO t3(a,b,c,d) VALUES(1,1,1,1),(2,1,3,2),(3,4,5,6);
+  DROP TRIGGER t3r1;
+  CREATE TRIGGER t3r1 AFTER DELETE ON t3 BEGIN
+    INSERT INTO t3(b,c,d) VALUES(old.b,old.c,old.d);
+  END;
+} {}
+do_catchsql_test insert-17.14 {
+  REPLACE INTO t3(a,b,c,d) VALUES(4,4,8,9);
+} {1 {UNIQUE constraint failed: t3.b}}
+do_catchsql_test insert-17.15 {
+  REPLACE INTO t3(a,b,c,d) VALUES(5,1,11,2);
+} {1 {UNIQUE constraint failed: t3.d}}
+
+
+finish_test
diff --git a/test/insert2.test b/test/insert2.test
new file mode 100644
index 0000000000000000000000000000000000000000..977fbc584ac2d2a8705f9c258087a87a2eb0595c
--- /dev/null
+++ b/test/insert2.test
@@ -0,0 +1,298 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the INSERT statement that takes is
+# result from a SELECT.
+#
+# $Id: insert2.test,v 1.19 2008/01/16 18:20:42 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix insert2
+
+# Create some tables with data that we can select against
+#
+do_test insert2-1.0 {
+  execsql {CREATE TABLE d1(n int, log int);}
+  for {set i 1} {$i<=20} {incr i} {
+    for {set j 0} {(1<<$j)<$i} {incr j} {}
+    execsql "INSERT INTO d1 VALUES($i,$j)"
+  }
+  execsql {SELECT * FROM d1 ORDER BY n}
+} {1 0 2 1 3 2 4 2 5 3 6 3 7 3 8 3 9 4 10 4 11 4 12 4 13 4 14 4 15 4 16 4 17 5 18 5 19 5 20 5}
+
+# Insert into a new table from the old one.
+#
+do_test insert2-1.1.1 {
+  execsql {
+    CREATE TABLE t1(log int, cnt int);
+    PRAGMA count_changes=on;
+  }
+  ifcapable explain {
+    execsql {
+      EXPLAIN INSERT INTO t1 SELECT log, count(*) FROM d1 GROUP BY log;
+    }
+  }
+  execsql {
+    INSERT INTO t1 SELECT log, count(*) FROM d1 GROUP BY log;
+  }
+} {6}
+do_test insert2-1.1.2 {
+  db changes
+} {6}
+do_test insert2-1.1.3 {
+  execsql {SELECT * FROM t1 ORDER BY log}
+} {0 1 1 1 2 2 3 4 4 8 5 4}
+
+ifcapable compound {
+do_test insert2-1.2.1 {
+  catch {execsql {DROP TABLE t1}}
+  execsql {
+    CREATE TABLE t1(log int, cnt int);
+    INSERT INTO t1 
+       SELECT log, count(*) FROM d1 GROUP BY log
+       EXCEPT SELECT n-1,log FROM d1;
+  }
+} {4}
+do_test insert2-1.2.2 {
+  execsql {
+    SELECT * FROM t1 ORDER BY log;
+  }
+} {0 1 3 4 4 8 5 4}
+do_test insert2-1.3.1 {
+  catch {execsql {DROP TABLE t1}}
+  execsql {
+    CREATE TABLE t1(log int, cnt int);
+    PRAGMA count_changes=off;
+    INSERT INTO t1 
+       SELECT log, count(*) FROM d1 GROUP BY log
+       INTERSECT SELECT n-1,log FROM d1;
+  }
+} {}
+do_test insert2-1.3.2 {
+  execsql {
+    SELECT * FROM t1 ORDER BY log;
+  }
+} {1 1 2 2}
+} ;# ifcapable compound
+execsql {PRAGMA count_changes=off;}
+
+do_test insert2-1.4 {
+  catch {execsql {DROP TABLE t1}}
+  set r [execsql {
+    CREATE TABLE t1(log int, cnt int);
+    CREATE INDEX i1 ON t1(log);
+    CREATE INDEX i2 ON t1(cnt);
+    INSERT INTO t1 SELECT log, count() FROM d1 GROUP BY log;
+    SELECT * FROM t1 ORDER BY log;
+  }]
+  lappend r [execsql {SELECT cnt FROM t1 WHERE log=3}]
+  lappend r [execsql {SELECT log FROM t1 WHERE cnt=4 ORDER BY log}]
+} {0 1 1 1 2 2 3 4 4 8 5 4 4 {3 5}}
+
+do_test insert2-2.0 {
+  execsql {
+    CREATE TABLE t3(a,b,c);
+    CREATE TABLE t4(x,y);
+    INSERT INTO t4 VALUES(1,2);
+    SELECT * FROM t4;
+  }
+} {1 2}
+do_test insert2-2.1 {
+  execsql {
+    INSERT INTO t3(a,c) SELECT * FROM t4;
+    SELECT * FROM t3;
+  }
+} {1 {} 2}
+do_test insert2-2.2 {
+  execsql {
+    DELETE FROM t3;
+    INSERT INTO t3(c,b) SELECT * FROM t4;
+    SELECT * FROM t3;
+  }
+} {{} 2 1}
+do_test insert2-2.3 {
+  execsql {
+    DELETE FROM t3;
+    INSERT INTO t3(c,a,b) SELECT x, 'hi', y FROM t4;
+    SELECT * FROM t3;
+  }
+} {hi 2 1}
+
+integrity_check insert2-3.0
+
+# File table t4 with lots of data
+#
+do_test insert2-3.1 {
+  execsql {
+    SELECT * from t4;
+  }
+} {1 2}
+do_test insert2-3.2 {
+  set x [db total_changes]
+  execsql {
+    BEGIN;
+    INSERT INTO t4 VALUES(2,4);
+    INSERT INTO t4 VALUES(3,6);
+    INSERT INTO t4 VALUES(4,8);
+    INSERT INTO t4 VALUES(5,10);
+    INSERT INTO t4 VALUES(6,12);
+    INSERT INTO t4 VALUES(7,14);
+    INSERT INTO t4 VALUES(8,16);
+    INSERT INTO t4 VALUES(9,18);
+    INSERT INTO t4 VALUES(10,20);
+    COMMIT;
+  }
+  expr [db total_changes] - $x
+} {9}
+do_test insert2-3.2.1 {
+  execsql {
+    SELECT count(*) FROM t4;
+  }
+} {10}
+do_test insert2-3.3 {
+  ifcapable subquery {
+    execsql {
+      BEGIN;
+      INSERT INTO t4 SELECT x+(SELECT max(x) FROM t4),y FROM t4;
+      INSERT INTO t4 SELECT x+(SELECT max(x) FROM t4),y FROM t4;
+      INSERT INTO t4 SELECT x+(SELECT max(x) FROM t4),y FROM t4;
+      INSERT INTO t4 SELECT x+(SELECT max(x) FROM t4),y FROM t4;
+      COMMIT;
+      SELECT count(*) FROM t4;
+    }
+  } else {
+    db function max_x_t4 {execsql {SELECT max(x) FROM t4}}
+    execsql {
+      BEGIN;
+      INSERT INTO t4 SELECT x+max_x_t4() ,y FROM t4;
+      INSERT INTO t4 SELECT x+max_x_t4() ,y FROM t4;
+      INSERT INTO t4 SELECT x+max_x_t4() ,y FROM t4;
+      INSERT INTO t4 SELECT x+max_x_t4() ,y FROM t4;
+      COMMIT;
+      SELECT count(*) FROM t4;
+    }
+  }
+} {160}
+do_test insert2-3.4 {
+  execsql {
+    BEGIN;
+    UPDATE t4 SET y='lots of data for the row where x=' || x
+                     || ' and y=' || y || ' - even more data to fill space';
+    COMMIT;
+    SELECT count(*) FROM t4;
+  }
+} {160}
+do_test insert2-3.5 {
+  ifcapable subquery {
+    execsql {
+      BEGIN;
+      INSERT INTO t4 SELECT x+(SELECT max(x)+1 FROM t4),y FROM t4;
+      SELECT count(*) from t4;
+      ROLLBACK;
+    }
+  } else {
+    execsql {
+      BEGIN;
+      INSERT INTO t4 SELECT x+max_x_t4()+1,y FROM t4;
+      SELECT count(*) from t4;
+      ROLLBACK;
+    }
+  }
+} {320}
+do_test insert2-3.6 {
+  execsql {
+    SELECT count(*) FROM t4;
+  }
+} {160}
+do_test insert2-3.7 {
+  execsql {
+    BEGIN;
+    DELETE FROM t4 WHERE x!=123;
+    SELECT count(*) FROM t4;
+    ROLLBACK;
+  }
+} {1}
+do_test insert2-3.8 {
+  db changes
+} {159}
+integrity_check insert2-3.9
+
+# Ticket #901
+#
+ifcapable tempdb {
+  do_test insert2-4.1 {
+    execsql {
+      CREATE TABLE Dependencies(depId integer primary key,
+        class integer, name str, flag str);
+      CREATE TEMPORARY TABLE DepCheck(troveId INT, depNum INT,
+        flagCount INT, isProvides BOOL, class INTEGER, name STRING,
+        flag STRING);
+      INSERT INTO DepCheck 
+         VALUES(-1, 0, 1, 0, 2, 'libc.so.6', 'GLIBC_2.0');
+      INSERT INTO Dependencies 
+         SELECT DISTINCT 
+             NULL, 
+             DepCheck.class, 
+             DepCheck.name, 
+             DepCheck.flag 
+         FROM DepCheck LEFT OUTER JOIN Dependencies ON 
+             DepCheck.class == Dependencies.class AND 
+             DepCheck.name == Dependencies.name AND 
+             DepCheck.flag == Dependencies.flag 
+         WHERE 
+             Dependencies.depId is NULL;
+    };
+  } {}
+}
+
+#--------------------------------------------------------------------
+# Test that the INSERT works when the SELECT statement (a) references
+# the table being inserted into and (b) is optimized to use an index
+# only.
+do_test insert2-5.1 {
+  execsql {
+    CREATE TABLE t2(a, b);
+    INSERT INTO t2 VALUES(1, 2);
+    CREATE INDEX t2i1 ON t2(a);
+    INSERT INTO t2 SELECT a, 3 FROM t2 WHERE a = 1;
+    SELECT * FROM t2;
+  }
+} {1 2 1 3}
+ifcapable subquery {
+  do_test insert2-5.2 {
+    execsql {
+      INSERT INTO t2 SELECT (SELECT a FROM t2), 4;
+      SELECT * FROM t2;
+    }
+  } {1 2 1 3 1 4}
+}
+
+do_execsql_test 6.0 { 
+  CREATE TABLE t5(a, b, c DEFAULT 'c', d);
+}
+do_execsql_test 6.1 {
+  INSERT INTO t5(a) SELECT 456 UNION ALL SELECT 123 ORDER BY 1;
+  SELECT * FROM t5 ORDER BY rowid;
+} {123 {} c {}   456 {} c {}}
+
+ifcapable fts3 {
+  do_execsql_test 6.2 {
+    CREATE VIRTUAL TABLE t0 USING fts4(a);
+  }
+  do_execsql_test 6.3 {
+    INSERT INTO t0 SELECT 0 UNION SELECT 0 AS 'x' ORDER BY x;
+    SELECT * FROM t0;
+  } {0}
+}
+
+
+finish_test
diff --git a/test/insert3.test b/test/insert3.test
new file mode 100644
index 0000000000000000000000000000000000000000..6b253e0ab791280a2ebbd25657181b8faba1ddbf
--- /dev/null
+++ b/test/insert3.test
@@ -0,0 +1,205 @@
+# 2005 January 13
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing corner cases of the INSERT statement.
+#
+# $Id: insert3.test,v 1.9 2009/04/23 14:58:40 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# All the tests in this file require trigger support
+#
+ifcapable {trigger} {
+
+# Create a table and a corresponding insert trigger.  Do a self-insert
+# into the table.
+#
+do_test insert3-1.0 {
+  execsql {
+    CREATE TABLE t1(a,b);
+    CREATE TABLE log(x UNIQUE, y);
+    CREATE TRIGGER r1 AFTER INSERT ON t1 BEGIN
+      UPDATE log SET y=y+1 WHERE x=new.a;
+      INSERT OR IGNORE INTO log VALUES(new.a, 1);
+    END;
+    INSERT INTO t1 VALUES('hello','world');
+    INSERT INTO t1 VALUES(5,10);
+    SELECT * FROM log ORDER BY x;
+  }
+} {5 1 hello 1}
+do_test insert3-1.1 {
+  execsql {
+    INSERT INTO t1 SELECT a, b+10 FROM t1;
+    SELECT * FROM log ORDER BY x;
+  }
+} {5 2 hello 2}
+do_test insert3-1.2 {
+  execsql {
+    CREATE TABLE log2(x PRIMARY KEY,y);
+    CREATE TRIGGER r2 BEFORE INSERT ON t1 BEGIN
+      UPDATE log2 SET y=y+1 WHERE x=new.b;
+      INSERT OR IGNORE INTO log2 VALUES(new.b,1);
+    END;
+    INSERT INTO t1 VALUES(453,'hi');
+    SELECT * FROM log ORDER BY x;
+  }
+} {5 2 453 1 hello 2}
+do_test insert3-1.3 {
+  execsql {
+    SELECT * FROM log2 ORDER BY x;
+  }
+} {hi 1}
+ifcapable compound {
+  do_test insert3-1.4.1 {
+    execsql {
+      INSERT INTO t1 SELECT * FROM t1;
+      SELECT 'a:', x, y FROM log UNION ALL 
+          SELECT 'b:', x, y FROM log2 ORDER BY x;
+    }
+  } {a: 5 4 b: 10 2 b: 20 1 a: 453 2 a: hello 4 b: hi 2 b: world 1}
+  do_test insert3-1.4.2 {
+    execsql {
+      SELECT 'a:', x, y FROM log UNION ALL 
+          SELECT 'b:', x, y FROM log2 ORDER BY x, y;
+    }
+  } {a: 5 4 b: 10 2 b: 20 1 a: 453 2 a: hello 4 b: hi 2 b: world 1}
+  do_test insert3-1.5 {
+    execsql {
+      INSERT INTO t1(a) VALUES('xyz');
+      SELECT * FROM log ORDER BY x;
+    }
+  } {5 4 453 2 hello 4 xyz 1}
+}
+
+do_test insert3-2.1 {
+  execsql {
+    CREATE TABLE t2(
+      a INTEGER PRIMARY KEY,
+      b DEFAULT 'b',
+      c DEFAULT 'c'
+    );
+    CREATE TABLE t2dup(a,b,c);
+    CREATE TRIGGER t2r1 BEFORE INSERT ON t2 BEGIN
+      INSERT INTO t2dup(a,b,c) VALUES(new.a,new.b,new.c);
+    END;
+    INSERT INTO t2(a) VALUES(123);
+    INSERT INTO t2(b) VALUES(234);
+    INSERT INTO t2(c) VALUES(345);
+    SELECT * FROM t2dup;
+  }
+} {123 b c -1 234 c -1 b 345}
+do_test insert3-2.2 {
+  execsql {
+    DELETE FROM t2dup;
+    INSERT INTO t2(a) SELECT 1 FROM t1 LIMIT 1;
+    INSERT INTO t2(b) SELECT 987 FROM t1 LIMIT 1;
+    INSERT INTO t2(c) SELECT 876 FROM t1 LIMIT 1;
+    SELECT * FROM t2dup;
+  }
+} {1 b c -1 987 c -1 b 876}
+
+# Test for proper detection of malformed WHEN clauses on INSERT triggers.
+#
+do_test insert3-3.1 {
+  execsql {
+    CREATE TABLE t3(a,b,c);
+    CREATE TRIGGER t3r1 BEFORE INSERT on t3 WHEN nosuchcol BEGIN
+      SELECT 'illegal WHEN clause';
+    END;
+  }
+} {}
+do_test insert3-3.2 {
+  catchsql {
+    INSERT INTO t3 VALUES(1,2,3)
+  }
+} {1 {no such column: nosuchcol}}
+do_test insert3-3.3 {
+  execsql {
+    CREATE TABLE t4(a,b,c);
+    CREATE TRIGGER t4r1 AFTER INSERT on t4 WHEN nosuchcol BEGIN
+      SELECT 'illegal WHEN clause';
+    END;
+  }
+} {}
+do_test insert3-3.4 {
+  catchsql {
+    INSERT INTO t4 VALUES(1,2,3)
+  }
+} {1 {no such column: nosuchcol}}
+
+} ;# ifcapable {trigger}
+
+# Tests for the INSERT INTO ... DEFAULT VALUES construct
+#
+do_test insert3-3.5 {
+  execsql {
+    CREATE TABLE t5(
+      a INTEGER PRIMARY KEY,
+      b DEFAULT 'xyz'
+    );
+    INSERT INTO t5 DEFAULT VALUES;
+    SELECT * FROM t5;
+  }
+} {1 xyz}
+do_test insert3-3.6 {
+  execsql {
+    INSERT INTO t5 DEFAULT VALUES;
+    SELECT * FROM t5;
+  }
+} {1 xyz 2 xyz}
+
+ifcapable bloblit {
+  do_test insert3-3.7 {
+    execsql {
+      CREATE TABLE t6(x,y DEFAULT 4.3, z DEFAULT x'6869');
+      INSERT INTO t6 DEFAULT VALUES;
+      SELECT * FROM t6;
+    }
+  } {{} 4.3 hi}
+}
+
+foreach tab [db eval {SELECT name FROM sqlite_master WHERE type = 'table'}] {
+  db eval "DROP TABLE $tab"
+}
+db close
+sqlite3 db test.db
+
+#-------------------------------------------------------------------------
+# While developing tests for a different feature (savepoint) the following
+# sequence was found to cause an assert() in btree.c to fail. These
+# tests are included to ensure that that bug is fixed.
+#
+do_test insert3-4.1 {
+  execsql { 
+    CREATE TABLE t1(a, b, c);
+    CREATE INDEX i1 ON t1(a, b);
+    BEGIN;
+    INSERT INTO t1 VALUES(randstr(10,400),randstr(10,400),randstr(10,400));
+  }
+  set r "randstr(10,400)"
+  for {set ii 0} {$ii < 10} {incr ii} {
+    execsql "INSERT INTO t1 SELECT $r, $r, $r FROM t1"
+  }
+  execsql { COMMIT }
+} {}
+do_test insert3-4.2 {
+  execsql {
+    PRAGMA cache_size = 10;
+    BEGIN;
+      UPDATE t1 SET a = randstr(10,10) WHERE (rowid%4)==0;
+      DELETE FROM t1 WHERE rowid%2;
+      INSERT INTO t1 SELECT randstr(10,400), randstr(10,400), c FROM t1;
+    COMMIT;
+  }
+} {}
+
+finish_test
diff --git a/test/insert4.test b/test/insert4.test
new file mode 100644
index 0000000000000000000000000000000000000000..8bd65a006f40a6d021c5bdd3a58c908f634cfc52
--- /dev/null
+++ b/test/insert4.test
@@ -0,0 +1,628 @@
+# 2007 January 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the INSERT transfer optimization.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix insert4
+
+ifcapable !view||!subquery {
+  finish_test
+  return
+}
+
+# The sqlite3_xferopt_count variable is incremented whenever the 
+# insert transfer optimization applies.
+#
+# This procedure runs a test to see if the sqlite3_xferopt_count is
+# set to N.
+#
+proc xferopt_test {testname N} {
+  do_test $testname {set ::sqlite3_xferopt_count} $N
+}
+
+# Create tables used for testing.
+#
+sqlite3_db_config db LEGACY_FILE_FORMAT 0
+execsql {
+  CREATE TABLE t1(a int, b int, check(b>a));
+  CREATE TABLE t2(x int, y int);
+  CREATE VIEW v2 AS SELECT y, x FROM t2;
+  CREATE TABLE t3(a int, b int);
+}
+
+# Ticket #2252.  Make sure the an INSERT from identical tables
+# does not violate constraints.
+#
+do_test insert4-1.1 {
+  set sqlite3_xferopt_count 0
+  execsql {
+    DELETE FROM t1;
+    DELETE FROM t2;
+    INSERT INTO t2 VALUES(9,1);
+  }
+  catchsql {
+    INSERT INTO t1 SELECT * FROM t2;
+  }
+} {1 {CHECK constraint failed: b>a}}
+xferopt_test insert4-1.2 0
+do_test insert4-1.3 {
+  execsql {
+    SELECT * FROM t1;
+  }
+} {}
+
+# Tests to make sure that the transfer optimization is not occurring
+# when it is not a valid optimization.
+#
+# The SELECT must be against a real table.
+do_test insert4-2.1.1 {
+  execsql {
+    DELETE FROM t1;
+    INSERT INTO t1 SELECT 4, 8;
+    SELECT * FROM t1;
+  }
+} {4 8}
+xferopt_test insert4-2.1.2  0
+do_test insert4-2.2.1 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT INTO t1 SELECT * FROM v2;
+    SELECT * FROM t1;
+  }
+} {0 {1 9}}
+xferopt_test insert4-2.2.2 0
+
+# Do not run the transfer optimization if there is a LIMIT clause
+#
+do_test insert4-2.3.1 {
+  execsql {
+    DELETE FROM t2;
+    INSERT INTO t2 VALUES(9,1);
+    INSERT INTO t2 SELECT y, x FROM t2;
+    INSERT INTO t3 SELECT * FROM t2 LIMIT 1;
+    SELECT * FROM t3;
+  }
+} {9 1}
+xferopt_test insert4-2.3.2  0
+do_test insert4-2.3.3 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT INTO t1 SELECT * FROM t2 LIMIT 1;
+    SELECT * FROM t1;
+  }
+} {1 {CHECK constraint failed: b>a}}
+xferopt_test insert4-2.3.4 0
+
+# Do not run the transfer optimization if there is a DISTINCT
+#
+do_test insert4-2.4.1 {
+  execsql {
+    DELETE FROM t3;
+    INSERT INTO t3 SELECT DISTINCT * FROM t2;
+    SELECT * FROM t3;
+  }
+} {9 1 1 9}
+xferopt_test insert4-2.4.2 0
+do_test insert4-2.4.3 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT INTO t1 SELECT DISTINCT * FROM t2;
+  }
+} {1 {CHECK constraint failed: b>a}}
+xferopt_test insert4-2.4.4 0
+
+# The following procedure constructs two tables then tries to transfer
+# data from one table to the other.  Checks are made to make sure the
+# transfer is successful and that the transfer optimization was used or
+# not, as appropriate.
+#
+#     xfer_check TESTID  XFER-USED   INIT-DATA   DEST-SCHEMA   SRC-SCHEMA 
+#
+# The TESTID argument is the symbolic name for this test.  The XFER-USED
+# argument is true if the transfer optimization should be employed and
+# false if not.  INIT-DATA is a single row of data that is to be 
+# transfered.  DEST-SCHEMA and SRC-SCHEMA are table declarations for
+# the destination and source tables.
+#
+proc xfer_check {testid xferused initdata destschema srcschema} {
+  execsql "CREATE TABLE dest($destschema)"
+  execsql "CREATE TABLE src($srcschema)"
+  execsql "INSERT INTO src VALUES([join $initdata ,])"
+  set ::sqlite3_xferopt_count 0
+  do_test $testid.1 {
+    execsql {
+      INSERT INTO dest SELECT * FROM src;
+      SELECT * FROM dest;
+    }
+  } $initdata
+  do_test $testid.2 {
+    set ::sqlite3_xferopt_count
+  } $xferused
+  execsql {
+    DROP TABLE dest;
+    DROP TABLE src;
+  }
+}
+
+
+# Do run the transfer optimization if tables have identical
+# CHECK constraints.
+#
+xfer_check insert4-3.1 1 {1 9} \
+    {a int, b int CHECK(b>a)} \
+    {x int, y int CHECK(y>x)}
+xfer_check insert4-3.2 1 {1 9} \
+    {a int, b int CHECK(b>a)} \
+    {x int CHECK(y>x), y int}
+
+# Do run the transfer optimization if the destination table lacks
+# any CHECK constraints regardless of whether or not there are CHECK
+# constraints on the source table.
+#
+xfer_check insert4-3.3 1 {1 9} \
+    {a int, b int} \
+    {x int, y int CHECK(y>x)}
+
+# Do run the transfer optimization if the destination table omits
+# NOT NULL constraints that the source table has.
+#
+xfer_check insert4-3.4 0 {1 9} \
+    {a int, b int CHECK(b>a)} \
+    {x int, y int}
+
+# Do not run the optimization if the destination has NOT NULL
+# constraints that the source table lacks.
+#
+xfer_check insert4-3.5 0 {1 9} \
+    {a int, b int NOT NULL} \
+    {x int, y int}
+xfer_check insert4-3.6 0 {1 9} \
+    {a int, b int NOT NULL} \
+    {x int NOT NULL, y int}
+xfer_check insert4-3.7 0 {1 9} \
+    {a int NOT NULL, b int NOT NULL} \
+    {x int NOT NULL, y int}
+xfer_check insert4-3.8 0 {1 9} \
+    {a int NOT NULL, b int} \
+    {x int, y int}
+
+
+# Do run the transfer optimization if the destination table and
+# source table have the same NOT NULL constraints or if the 
+# source table has extra NOT NULL constraints.
+#
+xfer_check insert4-3.9 1 {1 9} \
+    {a int, b int} \
+    {x int NOT NULL, y int}
+xfer_check insert4-3.10 1 {1 9} \
+    {a int, b int} \
+    {x int NOT NULL, y int NOT NULL}
+xfer_check insert4-3.11 1 {1 9} \
+    {a int NOT NULL, b int} \
+    {x int NOT NULL, y int NOT NULL}
+xfer_check insert4-3.12 1 {1 9} \
+    {a int, b int NOT NULL} \
+    {x int NOT NULL, y int NOT NULL}
+
+# Do not run the optimization if any corresponding table
+# columns have different affinities.
+#
+xfer_check insert4-3.20 0 {1 9} \
+    {a text, b int} \
+    {x int, b int}
+xfer_check insert4-3.21 0 {1 9} \
+    {a int, b int} \
+    {x text, b int}
+
+# "int" and "integer" are equivalent so the optimization should
+# run here.
+#
+xfer_check insert4-3.22 1 {1 9} \
+    {a int, b int} \
+    {x integer, b int}
+
+# Ticket #2291.
+#
+
+do_test insert4-4.1a {
+  execsql {CREATE TABLE t4(a, b, UNIQUE(a,b))}
+} {}
+ifcapable vacuum {
+  do_test insert4-4.1b {
+    execsql {
+      INSERT INTO t4 VALUES(NULL,0);
+      INSERT INTO t4 VALUES(NULL,1);
+      INSERT INTO t4 VALUES(NULL,1);
+      VACUUM;   
+    }
+  } {}
+}
+
+# Check some error conditions:
+#
+do_test insert4-5.1 {
+  # Table does not exist.
+  catchsql { INSERT INTO t2 SELECT a, b FROM nosuchtable }
+} {1 {no such table: nosuchtable}}
+do_test insert4-5.2 {
+  # Number of columns does not match.
+  catchsql { 
+    CREATE TABLE t5(a, b, c);
+    INSERT INTO t4 SELECT * FROM t5;
+  }
+} {1 {table t4 has 2 columns but 3 values were supplied}}
+
+do_test insert4-6.1 {
+  set ::sqlite3_xferopt_count 0
+  execsql {
+    CREATE INDEX t2_i2 ON t2(x, y COLLATE nocase); 
+    CREATE INDEX t2_i1 ON t2(x ASC, y DESC);
+    CREATE INDEX t3_i1 ON t3(a, b);
+    INSERT INTO t2 SELECT * FROM t3;
+  }
+  set ::sqlite3_xferopt_count
+} {0}
+do_test insert4-6.2 {
+  set ::sqlite3_xferopt_count 0
+  execsql {
+    DROP INDEX t2_i2;
+    INSERT INTO t2 SELECT * FROM t3;
+  }
+  set ::sqlite3_xferopt_count
+} {0}
+do_test insert4-6.3 {
+  set ::sqlite3_xferopt_count 0
+  execsql {
+    DROP INDEX t2_i1;
+    CREATE INDEX t2_i1 ON t2(x ASC, y ASC);
+    INSERT INTO t2 SELECT * FROM t3;
+  }
+  set ::sqlite3_xferopt_count
+} {1}
+do_test insert4-6.4 {
+  set ::sqlite3_xferopt_count 0
+  execsql {
+    DROP INDEX t2_i1;
+    CREATE INDEX t2_i1 ON t2(x ASC, y COLLATE RTRIM);
+    INSERT INTO t2 SELECT * FROM t3;
+  }
+  set ::sqlite3_xferopt_count
+} {0}
+
+
+do_test insert4-6.5 {
+  execsql {
+    CREATE TABLE t6a(x CHECK( x<>'abc' ));
+    INSERT INTO t6a VALUES('ABC');
+    SELECT * FROM t6a;
+  }
+} {ABC}
+do_test insert4-6.6 {
+  execsql {
+    CREATE TABLE t6b(x CHECK( x<>'abc' COLLATE nocase ));
+  }
+  catchsql {
+    INSERT INTO t6b SELECT * FROM t6a;
+  }
+} {1 {CHECK constraint failed: x<>'abc' COLLATE nocase}}
+do_test insert4-6.7 {
+  execsql {
+    DROP TABLE t6b;
+    CREATE TABLE t6b(x CHECK( x COLLATE nocase <>'abc' ));
+  }
+  catchsql {
+    INSERT INTO t6b SELECT * FROM t6a;
+  }
+} {1 {CHECK constraint failed: x COLLATE nocase <>'abc'}}
+
+# Ticket [6284df89debdfa61db8073e062908af0c9b6118e]
+# Disable the xfer optimization if the destination table contains
+# a foreign key constraint
+#
+ifcapable foreignkey {
+  do_test insert4-7.1 {
+    set ::sqlite3_xferopt_count 0
+    execsql {
+      CREATE TABLE t7a(x INTEGER PRIMARY KEY); INSERT INTO t7a VALUES(123);
+      CREATE TABLE t7b(y INTEGER REFERENCES t7a);
+      CREATE TABLE t7c(z INT);  INSERT INTO t7c VALUES(234);
+      INSERT INTO t7b SELECT * FROM t7c;
+      SELECT * FROM t7b;
+    }
+  } {234}
+  do_test insert4-7.2 {
+    set ::sqlite3_xferopt_count
+  } {1}
+  do_test insert4-7.3 {
+    set ::sqlite3_xferopt_count 0
+    execsql {
+      DELETE FROM t7b;
+      PRAGMA foreign_keys=ON;
+    }
+    catchsql {
+      INSERT INTO t7b SELECT * FROM t7c;
+    }
+  } {1 {FOREIGN KEY constraint failed}}
+  do_test insert4-7.4 {
+    execsql {SELECT * FROM t7b}
+  } {}
+  do_test insert4-7.5 {
+    set ::sqlite3_xferopt_count
+  } {0}
+  do_test insert4-7.6 {
+    set ::sqlite3_xferopt_count 0
+    execsql {
+      DELETE FROM t7b; DELETE FROM t7c;
+      INSERT INTO t7c VALUES(123);
+      INSERT INTO t7b SELECT * FROM t7c;
+      SELECT * FROM t7b;
+    }
+  } {123}
+  do_test insert4-7.7 {
+    set ::sqlite3_xferopt_count
+  } {0}
+  do_test insert4-7.7 {
+    set ::sqlite3_xferopt_count 0
+    execsql {
+      PRAGMA foreign_keys=OFF;
+      DELETE FROM t7b;
+      INSERT INTO t7b SELECT * FROM t7c;
+      SELECT * FROM t7b;
+    }
+  } {123}
+  do_test insert4-7.8 {
+    set ::sqlite3_xferopt_count
+  } {1}
+}
+
+# Ticket [676bc02b87176125635cb174d110b431581912bb]
+# Make sure INTEGER PRIMARY KEY ON CONFLICT ... works with the xfer
+# optimization.
+#
+do_test insert4-8.1 {
+  execsql {
+    DROP TABLE IF EXISTS t1;
+    DROP TABLE IF EXISTS t2;
+    CREATE TABLE t1(a INTEGER PRIMARY KEY ON CONFLICT REPLACE, b);
+    CREATE TABLE t2(x INTEGER PRIMARY KEY ON CONFLICT REPLACE, y);
+    INSERT INTO t1 VALUES(1,2);
+    INSERT INTO t2 VALUES(1,3);
+    INSERT INTO t1 SELECT * FROM t2;
+    SELECT * FROM t1;
+  }
+} {1 3}
+do_test insert4-8.2 {
+  execsql {
+    DROP TABLE IF EXISTS t1;
+    DROP TABLE IF EXISTS t2;
+    CREATE TABLE t1(a INTEGER PRIMARY KEY ON CONFLICT REPLACE, b);
+    CREATE TABLE t2(x, y);
+    INSERT INTO t1 VALUES(1,2);
+    INSERT INTO t2 VALUES(1,3);
+    INSERT INTO t1 SELECT * FROM t2;
+    SELECT * FROM t1;
+  }
+} {1 3}
+do_test insert4-8.3 {
+  execsql {
+    DROP TABLE IF EXISTS t1;
+    DROP TABLE IF EXISTS t2;
+    CREATE TABLE t1(a INTEGER PRIMARY KEY ON CONFLICT IGNORE, b);
+    CREATE TABLE t2(x INTEGER PRIMARY KEY ON CONFLICT IGNORE, y);
+    INSERT INTO t1 VALUES(1,2);
+    INSERT INTO t2 VALUES(1,3);
+    INSERT INTO t1 SELECT * FROM t2;
+    SELECT * FROM t1;
+  }
+} {1 2}
+do_test insert4-8.4 {
+  execsql {
+    DROP TABLE IF EXISTS t1;
+    DROP TABLE IF EXISTS t2;
+    CREATE TABLE t1(a INTEGER PRIMARY KEY ON CONFLICT IGNORE, b);
+    CREATE TABLE t2(x, y);
+    INSERT INTO t1 VALUES(1,2);
+    INSERT INTO t2 VALUES(1,3);
+    INSERT INTO t1 SELECT * FROM t2;
+    SELECT * FROM t1;
+  }
+} {1 2}
+do_test insert4-8.5 {
+  execsql {
+    DROP TABLE IF EXISTS t1;
+    DROP TABLE IF EXISTS t2;
+    CREATE TABLE t1(a INTEGER PRIMARY KEY ON CONFLICT FAIL, b);
+    CREATE TABLE t2(x INTEGER PRIMARY KEY ON CONFLICT FAIL, y);
+    INSERT INTO t1 VALUES(1,2);
+    INSERT INTO t2 VALUES(-99,100);
+    INSERT INTO t2 VALUES(1,3);
+    SELECT * FROM t1;
+  }
+  catchsql {
+    INSERT INTO t1 SELECT * FROM t2;
+  }
+} {1 {UNIQUE constraint failed: t1.a}}
+do_test insert4-8.6 {
+  execsql {
+    SELECT * FROM t1;
+  }
+} {-99 100 1 2} 
+do_test insert4-8.7 {
+  execsql {
+    DROP TABLE IF EXISTS t1;
+    DROP TABLE IF EXISTS t2;
+    CREATE TABLE t1(a INTEGER PRIMARY KEY ON CONFLICT ABORT, b);
+    CREATE TABLE t2(x INTEGER PRIMARY KEY ON CONFLICT ABORT, y);
+    INSERT INTO t1 VALUES(1,2);
+    INSERT INTO t2 VALUES(-99,100);
+    INSERT INTO t2 VALUES(1,3);
+    SELECT * FROM t1;
+  }
+  catchsql {
+    INSERT INTO t1 SELECT * FROM t2;
+  }
+} {1 {UNIQUE constraint failed: t1.a}}
+do_test insert4-8.8 {
+  execsql {
+    SELECT * FROM t1;
+  }
+} {1 2} 
+do_test insert4-8.9 {
+  execsql {
+    DROP TABLE IF EXISTS t1;
+    DROP TABLE IF EXISTS t2;
+    CREATE TABLE t1(a INTEGER PRIMARY KEY ON CONFLICT ROLLBACK, b);
+    CREATE TABLE t2(x INTEGER PRIMARY KEY ON CONFLICT ROLLBACK, y);
+    INSERT INTO t1 VALUES(1,2);
+    INSERT INTO t2 VALUES(-99,100);
+    INSERT INTO t2 VALUES(1,3);
+    SELECT * FROM t1;
+  }
+  catchsql {
+    BEGIN;
+    INSERT INTO t1 VALUES(2,3);
+    INSERT INTO t1 SELECT * FROM t2;
+  }
+} {1 {UNIQUE constraint failed: t1.a}}
+do_test insert4-8.10 {
+  catchsql {COMMIT}
+} {1 {cannot commit - no transaction is active}}
+do_test insert4-8.11 {
+  execsql {
+    SELECT * FROM t1;
+  }
+} {1 2} 
+
+do_test insert4-8.21 {
+  execsql {
+    DROP TABLE IF EXISTS t1;
+    DROP TABLE IF EXISTS t2;
+    CREATE TABLE t1(a INTEGER PRIMARY KEY ON CONFLICT REPLACE, b);
+    CREATE TABLE t2(x INTEGER PRIMARY KEY ON CONFLICT REPLACE, y);
+    INSERT INTO t2 VALUES(1,3);
+    INSERT INTO t1 SELECT * FROM t2;
+    SELECT * FROM t1;
+  }
+} {1 3}
+do_test insert4-8.22 {
+  execsql {
+    DROP TABLE IF EXISTS t1;
+    DROP TABLE IF EXISTS t2;
+    CREATE TABLE t1(a INTEGER PRIMARY KEY ON CONFLICT IGNORE, b);
+    CREATE TABLE t2(x INTEGER PRIMARY KEY ON CONFLICT IGNORE, y);
+    INSERT INTO t2 VALUES(1,3);
+    INSERT INTO t1 SELECT * FROM t2;
+    SELECT * FROM t1;
+  }
+} {1 3}
+do_test insert4-8.23 {
+  execsql {
+    DROP TABLE IF EXISTS t1;
+    DROP TABLE IF EXISTS t2;
+    CREATE TABLE t1(a INTEGER PRIMARY KEY ON CONFLICT ABORT, b);
+    CREATE TABLE t2(x INTEGER PRIMARY KEY ON CONFLICT ABORT, y);
+    INSERT INTO t2 VALUES(1,3);
+    INSERT INTO t1 SELECT * FROM t2;
+    SELECT * FROM t1;
+  }
+} {1 3}
+do_test insert4-8.24 {
+  execsql {
+    DROP TABLE IF EXISTS t1;
+    DROP TABLE IF EXISTS t2;
+    CREATE TABLE t1(a INTEGER PRIMARY KEY ON CONFLICT FAIL, b);
+    CREATE TABLE t2(x INTEGER PRIMARY KEY ON CONFLICT FAIL, y);
+    INSERT INTO t2 VALUES(1,3);
+    INSERT INTO t1 SELECT * FROM t2;
+    SELECT * FROM t1;
+  }
+} {1 3}
+do_test insert4-8.25 {
+  execsql {
+    DROP TABLE IF EXISTS t1;
+    DROP TABLE IF EXISTS t2;
+    CREATE TABLE t1(a INTEGER PRIMARY KEY ON CONFLICT ROLLBACK, b);
+    CREATE TABLE t2(x INTEGER PRIMARY KEY ON CONFLICT ROLLBACK, y);
+    INSERT INTO t2 VALUES(1,3);
+    INSERT INTO t1 SELECT * FROM t2;
+    SELECT * FROM t1;
+  }
+} {1 3}
+
+do_catchsql_test insert4-9.1 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(x);
+  INSERT INTO t1(x) VALUES(5 COLLATE xyzzy) UNION SELECT 0;
+} {1 {no such collation sequence: xyzzy}}
+
+#-------------------------------------------------------------------------
+# Check that running an integrity-check does not disable the xfer 
+# optimization for tables with CHECK constraints.
+#
+do_execsql_test 10.1 {
+  CREATE TABLE t8(
+    rid INTEGER,
+    pid INTEGER,
+    mid INTEGER,
+    px INTEGER DEFAULT(0) CHECK(px IN(0, 1))
+  );
+  CREATE TEMP TABLE x(
+    rid INTEGER,
+    pid INTEGER,
+    mid INTEGER,
+    px INTEGER DEFAULT(0) CHECK(px IN(0, 1))
+  );
+}
+do_test 10.2 {
+  set sqlite3_xferopt_count 0
+  execsql { INSERT INTO x SELECT * FROM t8 }
+  set sqlite3_xferopt_count
+} {1}
+
+do_test 10.3 {
+  execsql { PRAGMA integrity_check }
+  set sqlite3_xferopt_count 0
+  execsql { INSERT INTO x     SELECT * FROM t8 }
+  set sqlite3_xferopt_count
+} {1}
+
+do_test 10.4 {
+  execsql { PRAGMA integrity_check }
+  set sqlite3_xferopt_count 0
+  execsql { INSERT INTO x     SELECT * FROM t8  RETURNING * }
+  set sqlite3_xferopt_count
+} {0}
+
+#-------------------------------------------------------------------------
+# xfer transfer between tables where the source has an empty partial index.
+#
+do_execsql_test 11.0 {
+  CREATE TABLE t9(a, b, c);
+  CREATE INDEX t9a ON t9(a);
+  CREATE INDEX t9b ON t9(b) WHERE c=0;
+
+  INSERT INTO t9 VALUES(1, 1, 1);
+  INSERT INTO t9 VALUES(2, 2, 2);
+  INSERT INTO t9 VALUES(3, 3, 3);
+
+  CREATE TABLE t10(a, b, c);
+  CREATE INDEX t10a ON t10(a);
+  CREATE INDEX t10b ON t10(b) WHERE c=0;
+
+  INSERT INTO t10 SELECT * FROM t9;
+  SELECT * FROM t10;
+  PRAGMA integrity_check;
+} {1 1 1  2 2 2  3 3 3  ok}
+
+finish_test
diff --git a/test/insert5.test b/test/insert5.test
new file mode 100644
index 0000000000000000000000000000000000000000..1e58902e078845642aae222fbeaa4f02c080613d
--- /dev/null
+++ b/test/insert5.test
@@ -0,0 +1,117 @@
+# 2007 November 23
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# The tests in this file ensure that a temporary table is used
+# when required by an "INSERT INTO ... SELECT ..." statement.
+#
+# $Id: insert5.test,v 1.5 2008/08/04 03:51:24 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !subquery {
+  finish_test
+  return
+}
+
+# Return true if the compilation of the sql passed as an argument 
+# includes the opcode OpenEphemeral. An "INSERT INTO ... SELECT"
+# statement includes such an opcode if a temp-table is used
+# to store intermediate results.
+# 
+proc uses_temp_table {sql} {
+  return [expr {[lsearch [execsql "EXPLAIN $sql"] OpenEphemeral]>=0}]
+}
+
+# Construct the sample database.
+#
+do_test insert5-1.0 {
+  forcedelete test2.db test2.db-journal
+  execsql {
+    CREATE TABLE MAIN(Id INTEGER, Id1 INTEGER); 
+    CREATE TABLE B(Id INTEGER, Id1 INTEGER); 
+    CREATE VIEW v1 AS SELECT * FROM B;
+    CREATE VIEW v2 AS SELECT * FROM MAIN;
+    INSERT INTO MAIN(Id,Id1) VALUES(2,3); 
+    INSERT INTO B(Id,Id1) VALUES(2,3); 
+  }
+} {}
+
+# Run the query.
+#
+ifcapable compound {
+  do_test insert5-1.1 {
+    execsql {
+      INSERT INTO B 
+        SELECT * FROM B UNION ALL 
+        SELECT * FROM MAIN WHERE exists (select * FROM B WHERE B.Id = MAIN.Id);
+      SELECT * FROM B;
+    }
+  } {2 3 2 3 2 3}
+} else {
+  do_test insert5-1.1 {
+    execsql {
+      INSERT INTO B SELECT * FROM B;
+      INSERT INTO B
+        SELECT * FROM MAIN WHERE exists (select * FROM B WHERE B.Id = MAIN.Id);
+      SELECT * FROM B;
+    }
+  } {2 3 2 3 2 3}
+}
+do_test insert5-2.1 {
+  uses_temp_table { INSERT INTO b SELECT * FROM main }
+} {0}
+do_test insert5-2.2 {
+  uses_temp_table { INSERT INTO b SELECT * FROM b }
+} {1}
+do_test insert5-2.3 {
+  uses_temp_table { INSERT INTO b SELECT (SELECT id FROM b), id1 FROM main }
+} {1}
+do_test insert5-2.4 {
+  uses_temp_table { INSERT INTO b SELECT id1, (SELECT id FROM b) FROM main }
+} {1}
+do_test insert5-2.5 {
+  uses_temp_table { 
+    INSERT INTO b 
+      SELECT * FROM main WHERE id = (SELECT id1 FROM b WHERE main.id = b.id) }
+} {1}
+do_test insert5-2.6 {
+  uses_temp_table { INSERT INTO b SELECT * FROM v1 }
+} {1}
+do_test insert5-2.7 {
+  uses_temp_table { INSERT INTO b SELECT * FROM v2 }
+} {0}
+do_test insert5-2.8 {
+  uses_temp_table { 
+    INSERT INTO b 
+    SELECT * FROM main WHERE id > 10 AND max(id1, (SELECT id FROM b)) > 10;
+  }
+} {1}
+
+# UPDATE: Using a column from the outer query (main.id) in the GROUP BY
+# or ORDER BY of a sub-query is no longer supported.
+#
+# do_test insert5-2.9 {
+#   uses_temp_table { 
+#     INSERT INTO b 
+#     SELECT * FROM main 
+#     WHERE id > 10 AND (SELECT count(*) FROM v2 GROUP BY main.id)
+#   }
+# } {}
+do_test insert5-2.9 {
+  catchsql { 
+    INSERT INTO b 
+    SELECT * FROM main 
+    WHERE id > 10 AND (SELECT count(*) FROM v2 GROUP BY main.id)
+  }
+} {1 {no such column: main.id}}
+
+finish_test
diff --git a/test/insertfault.test b/test/insertfault.test
new file mode 100644
index 0000000000000000000000000000000000000000..53849a1dbbe9a562058103c6e1f0d93716ab794e
--- /dev/null
+++ b/test/insertfault.test
@@ -0,0 +1,36 @@
+# 2019-01-26
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test cases for INSERT
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix insertfault
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c, d DEFAULT true);
+  INSERT INTO t1 DEFAULT VALUES;
+  SELECT * FROM t1;
+} {1 {} {} 1}
+faultsim_save_and_close
+
+breakpoint
+do_faultsim_test 1 -faults oom* -prep {
+  faultsim_restore_and_reopen
+  db eval { SELECT * FROM sqlite_master } 
+} -body {
+  execsql { SELECT * FROM t1 }
+} -test {
+  faultsim_test_result {0 {1 {} {} 1}}
+}
+
+
+finish_test
diff --git a/test/instr.test b/test/instr.test
new file mode 100644
index 0000000000000000000000000000000000000000..d23d66c25c70ee56a3dc7156b9b903e62a54218e
--- /dev/null
+++ b/test/instr.test
@@ -0,0 +1,281 @@
+# 2012 October 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the built-in INSTR() functions.
+#
+# EVIDENCE-OF: R-27549-59611 The instr(X,Y) function finds the first
+# occurrence of string Y within string X and returns the number of prior
+# characters plus 1, or 0 if Y is nowhere found within X.
+#
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Create a table to work with.
+#
+do_test instr-1.1 {
+  db eval {SELECT instr('abcdefg','a');}
+} {1}
+do_test instr-1.2 {
+  db eval {SELECT instr('abcdefg','b');}
+} {2}
+do_test instr-1.3 {
+  db eval {SELECT instr('abcdefg','c');}
+} {3}
+do_test instr-1.4 {
+  db eval {SELECT instr('abcdefg','d');}
+} {4}
+do_test instr-1.5 {
+  db eval {SELECT instr('abcdefg','e');}
+} {5}
+do_test instr-1.6 {
+  db eval {SELECT instr('abcdefg','f');}
+} {6}
+do_test instr-1.7 {
+  db eval {SELECT instr('abcdefg','g');}
+} {7}
+do_test instr-1.8 {
+  db eval {SELECT instr('abcdefg','h');}
+} {0}
+do_test instr-1.9 {
+  db eval {SELECT instr('abcdefg','abcdefg');}
+} {1}
+do_test instr-1.10 {
+  db eval {SELECT instr('abcdefg','abcdefgh');}
+} {0}
+do_test instr-1.11 {
+  db eval {SELECT instr('abcdefg','bcdefg');}
+} {2}
+do_test instr-1.12 {
+  db eval {SELECT instr('abcdefg','bcdefgh');}
+} {0}
+do_test instr-1.13 {
+  db eval {SELECT instr('abcdefg','cdefg');}
+} {3}
+do_test instr-1.14 {
+  db eval {SELECT instr('abcdefg','cdefgh');}
+} {0}
+do_test instr-1.15 {
+  db eval {SELECT instr('abcdefg','defg');}
+} {4}
+do_test instr-1.16 {
+  db eval {SELECT instr('abcdefg','defgh');}
+} {0}
+do_test instr-1.17 {
+  db eval {SELECT instr('abcdefg','efg');}
+} {5}
+do_test instr-1.18 {
+  db eval {SELECT instr('abcdefg','efgh');}
+} {0}
+do_test instr-1.19 {
+  db eval {SELECT instr('abcdefg','fg');}
+} {6}
+do_test instr-1.20 {
+  db eval {SELECT instr('abcdefg','fgh');}
+} {0}
+do_test instr-1.21 {
+  db eval {SELECT coalesce(instr('abcdefg',NULL),'nil');}
+} {nil}
+do_test instr-1.22 {
+  db eval {SELECT coalesce(instr(NULL,'x'),'nil');}
+} {nil}
+do_test instr-1.23 {
+  db eval {SELECT instr(12345,34);}
+} {3}
+do_test instr-1.24 {
+  db eval {SELECT instr(123456.78,34);}
+} {3}
+do_test instr-1.25 {
+  db eval {SELECT instr(123456.78,x'3334');}
+} {3}
+do_test instr-1.26 {
+  db eval {SELECT instr('äbcdefg','efg');}
+} {5}
+do_test instr-1.27 {
+  db eval {SELECT instr('€xyzzy','xyz');}
+} {2}
+do_test instr-1.28 {
+  db eval {SELECT instr('abc€xyzzy','xyz');}
+} {5}
+do_test instr-1.29 {
+  db eval {SELECT instr('abc€xyzzy','€xyz');}
+} {4}
+do_test instr-1.30 {
+  db eval {SELECT instr('abc€xyzzy','c€xyz');}
+} {3}
+do_test instr-1.31 {
+  db eval {SELECT instr(x'0102030405',x'01');}
+} {1}
+do_test instr-1.32 {
+  db eval {SELECT instr(x'0102030405',x'02');}
+} {2}
+do_test instr-1.33 {
+  db eval {SELECT instr(x'0102030405',x'03');}
+} {3}
+do_test instr-1.34 {
+  db eval {SELECT instr(x'0102030405',x'04');}
+} {4}
+do_test instr-1.35 {
+  db eval {SELECT instr(x'0102030405',x'05');}
+} {5}
+do_test instr-1.36 {
+  db eval {SELECT instr(x'0102030405',x'06');}
+} {0}
+do_test instr-1.37 {
+  db eval {SELECT instr(x'0102030405',x'0102030405');}
+} {1}
+do_test instr-1.38 {
+  db eval {SELECT instr(x'0102030405',x'02030405');}
+} {2}
+do_test instr-1.39 {
+  db eval {SELECT instr(x'0102030405',x'030405');}
+} {3}
+do_test instr-1.40 {
+  db eval {SELECT instr(x'0102030405',x'0405');}
+} {4}
+do_test instr-1.41 {
+  db eval {SELECT instr(x'0102030405',x'0506');}
+} {0}
+do_test instr-1.42 {
+  db eval {SELECT instr(x'0102030405',x'');}
+} {1}
+do_test instr-1.43 {
+  db eval {SELECT instr(x'',x'');}
+} {1}
+do_test instr-1.44 {
+  db eval {SELECT instr('','');}
+} {1}
+do_test instr-1.45 {
+  db eval {SELECT instr('abcdefg','');}
+} {1}
+unset -nocomplain longstr
+set longstr abcdefghijklmonpqrstuvwxyz
+append longstr $longstr
+append longstr $longstr
+append longstr $longstr
+append longstr $longstr
+append longstr $longstr
+append longstr $longstr
+append longstr $longstr
+append longstr $longstr
+append longstr $longstr
+append longstr $longstr
+append longstr $longstr
+append longstr $longstr
+# puts [string length $longstr]
+append longstr Xabcde
+do_test instr-1.46 {
+  db eval {SELECT instr($longstr,'X');}
+} {106497}
+do_test instr-1.47 {
+  db eval {SELECT instr($longstr,'Y');}
+} {0}
+do_test instr-1.48 {
+  db eval {SELECT instr($longstr,'Xa');}
+} {106497}
+do_test instr-1.49 {
+  db eval {SELECT instr($longstr,'zXa');}
+} {106496}
+set longstr [string map {a ä} $longstr]
+do_test instr-1.50 {
+  db eval {SELECT instr($longstr,'X');}
+} {106497}
+do_test instr-1.51 {
+  db eval {SELECT instr($longstr,'Y');}
+} {0}
+do_test instr-1.52 {
+  db eval {SELECT instr($longstr,'Xä');}
+} {106497}
+do_test instr-1.53 {
+  db eval {SELECT instr($longstr,'zXä');}
+} {106496}
+do_test instr-1.54 {
+  db eval {SELECT instr(x'78c3a4e282ac79','x');}
+} {1}
+do_test instr-1.55 {
+  db eval {SELECT instr(x'78c3a4e282ac79','y');}
+} {4}
+
+# EVIDENCE-OF: R-46421-32541 Or, if X and Y are both BLOBs, then
+# instr(X,Y) returns one more than the number bytes prior to the first
+# occurrence of Y, or 0 if Y does not occur anywhere within X.
+#
+do_test instr-1.56.1 {
+  db eval {SELECT instr(x'78c3a4e282ac79',x'79');}
+} {7}
+do_test instr-1.56.2 {
+  db eval {SELECT instr(x'78c3a4e282ac79',x'7a');}
+} {0}
+do_test instr-1.56.3 {
+  db eval {SELECT instr(x'78c3a4e282ac79',x'78');}
+} {1}
+do_test instr-1.56.3 {
+  db eval {SELECT instr(x'78c3a4e282ac79',x'a4');}
+} {3}
+
+# EVIDENCE-OF: R-17329-35644 If both arguments X and Y to instr(X,Y) are
+# non-NULL and are not BLOBs then both are interpreted as strings.
+#
+do_test instr-1.57.1 {
+  db eval {SELECT instr('xä€y',x'79');}
+} {4}
+do_test instr-1.57.2 {
+  db eval {SELECT instr('xä€y',x'a4');}
+} {0}
+do_test instr-1.57.3 {
+  db eval {SELECT instr(x'78c3a4e282ac79','y');}
+} {4}
+
+# EVIDENCE-OF: R-14708-27487 If either X or Y are NULL in instr(X,Y)
+# then the result is NULL.
+#
+do_execsql_test instr-1.60 {
+  SELECT coalesce(instr(NULL,'abc'), 999);
+} {999}
+do_execsql_test instr-1.61 {
+  SELECT coalesce(instr('abc',NULL), 999);
+} {999}
+do_execsql_test instr-1.62 {
+  SELECT coalesce(instr(NULL,NULL), 999);
+} {999}
+
+do_execsql_test instr-1.63 {
+  SELECT instr(X'', 'abc')
+} 0
+do_execsql_test instr-1.64 {
+  CREATE TABLE x1(a, b);
+  INSERT INTO x1 VALUES(X'', 'abc');
+  SELECT instr(a, b) FROM x1;
+} 0
+
+# 2019-09-16 ticket https://www.sqlite.org/src/info/587791f92620090e
+#
+do_execsql_test instr-2.0 {
+  DROP TABLE IF EXISTS t0;
+  CREATE TABLE t0(c0 PRIMARY KEY, c1);
+  INSERT INTO t0(c0) VALUES (x'bb'), (0);
+  SELECT COUNT(*) FROM t0 WHERE INSTR(x'aabb', t0.c0) ORDER BY t0.c0, t0.c1;
+} {1}
+do_execsql_test instr-2.1 {
+  SELECT quote(c0) FROM t0 WHERE INSTR(x'aabb', t0.c0) ORDER BY t0.c0, t0.c1;
+} {X'BB'}
+do_execsql_test instr-2.2 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(x);
+  INSERT INTO t1(x) VALUES('text'),(x'bb');
+  SELECT quote(x) FROM t1 WHERE instr(x'aabb',x);
+} {X'BB'}
+do_execsql_test instr-2.3 {
+  SELECT quote(x) FROM t1 WHERE x>'zzz' AND instr(x'aabb',x);
+} {X'BB'}
+
+finish_test
diff --git a/test/instrfault.test b/test/instrfault.test
new file mode 100644
index 0000000000000000000000000000000000000000..848e46e4c2f6fb752c16c5c3087fd77d3d745918
--- /dev/null
+++ b/test/instrfault.test
@@ -0,0 +1,92 @@
+# 2016 November 4
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing OOM error handling within the built-in 
+# INSTR() function.
+#
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix instrfault
+
+# Use big NEEDLE and HAYSTACK strings. Strings so large they cannot
+# use lookaside buffers.
+#
+set ::NEEDLE [string repeat "abcdefghijklmnopqrstuvwxyz" 10]
+set ::HAYSTACK "[string repeat 123 10]$NEEDLE[string repeat 456 10]"
+
+foreach {enc} {
+  utf8
+  utf16
+} {
+  reset_db
+  sqlite3_db_config_lookaside db 0 0 0
+
+  execsql "PRAGMA encoding = $enc"
+  do_execsql_test 1.$enc.1 {
+    CREATE TABLE t1(n, h);
+    INSERT INTO t1 VALUES($::NEEDLE, $::HAYSTACK);
+  } {}
+
+  do_faultsim_test 1.$enc.1 -faults oom-t* -prep {
+    execsql { SELECT instr(h, n) FROM t1 }
+  } -body {
+    execsql { SELECT instr(h, n) FROM t1 }
+  } -test {
+    faultsim_test_result {0 31}
+  }
+
+  do_faultsim_test 1.$enc.2 -faults oom-t* -prep {
+    execsql { SELECT instr($::HAYSTACK, $::NEEDLE) FROM t1 }
+  } -body {
+    execsql { SELECT instr($::HAYSTACK, $::NEEDLE) FROM t1 }
+  } -test {
+    faultsim_test_result {0 31}
+  }
+
+  do_faultsim_test 1.$enc.3 -faults oom-t* -prep {
+    set ::stmt [sqlite3_prepare_v2 db "SELECT instr(?, ?)" -1 dummy]
+    sqlite3_bind_text $::stmt 1 $::HAYSTACK [string length $::HAYSTACK]
+    sqlite3_bind_text $::stmt 2 $::NEEDLE [string length $::NEEDLE]
+  } -body {
+    set rc [sqlite3_step $::stmt]
+    if {$rc=="SQLITE_NOMEM"} { error "out of memory" }
+    sqlite3_column_int $::stmt 0
+  } -test {
+    faultsim_test_result {0 31}
+    sqlite3_finalize $::stmt
+  }
+
+  do_faultsim_test 1.$enc.4 -faults oom-t* -prep {
+    set ::stmt [sqlite3_prepare_v2 db "SELECT instr(?, ?)" -1 dummy]
+    sqlite3_bind_blob $::stmt 1 $::HAYSTACK [string length $::HAYSTACK]
+    sqlite3_bind_blob $::stmt 2 $::NEEDLE [string length $::NEEDLE]
+  } -body {
+    set rc [sqlite3_step $::stmt]
+    if {$rc=="SQLITE_NOMEM"} { error "out of memory" }
+    sqlite3_column_int $::stmt 0
+  } -test {
+    faultsim_test_result {0 31}
+    sqlite3_finalize $::stmt
+  }
+
+  do_execsql_test 1.$enc.5.0 {
+    CREATE TABLE h1(a, b);
+    INSERT INTO h1 VALUES('abcdefg%200hijkl', randomblob(200));
+    INSERT INTO h1 SELECT b, a FROM h1;
+  }
+  do_faultsim_test 1.$enc.5 -faults oom-t* -body {
+    execsql { SELECT rowid FROM h1 WHERE instr(a,b) }
+  } -test {}
+}
+
+finish_test
diff --git a/test/intarray.test b/test/intarray.test
new file mode 100644
index 0000000000000000000000000000000000000000..2250027c5dd2ec095688a24bf642d11f3cf653bd
--- /dev/null
+++ b/test/intarray.test
@@ -0,0 +1,116 @@
+# 2009 November 10
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests for the "intarray" object implemented
+# in test_intarray.c.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !vtab {
+  return
+}
+
+do_test intarray-1.0 {
+  db eval {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+  }
+  for {set i 1} {$i<=999} {incr i} {
+    set b [format {x%03d} $i]
+    db eval {INSERT INTO t1(a,b) VALUES($i,$b)}
+  }
+  db eval {
+    CREATE TABLE t2(x INTEGER PRIMARY KEY, y);
+    INSERT INTO t2 SELECT * FROM t1;
+    SELECT b FROM t1 WHERE a IN (12,34,56,78) ORDER BY a
+  }
+} {x012 x034 x056 x078}
+
+do_test intarray-1.1 {
+  set ia1 [sqlite3_intarray_create db ia1]
+  set ia2 [sqlite3_intarray_create db ia2]
+  set ia3 [sqlite3_intarray_create db ia3]
+  set ia4 [sqlite3_intarray_create db ia4]
+  db eval {
+    SELECT type, name FROM temp.sqlite_master
+     ORDER BY name
+  }
+} {table ia1 table ia2 table ia3 table ia4}
+
+# Verify the ability to DROP and recreate an intarray virtual table.
+do_test intarray-1.1b {
+  db eval {DROP TABLE ia1}
+  set rc [catch {sqlite3_intarray_create db ia1} ia1]
+  lappend rc $ia1
+} {/0 [0-9A-Z]+/} 
+
+do_test intarray-1.2 {
+  db eval {
+    SELECT b FROM t1 WHERE a IN ia3 ORDER BY a
+  }
+} {}
+
+do_test intarray-1.3 {
+  sqlite3_intarray_bind $ia3 45 123 678
+  db eval {
+    SELECT b FROM t1 WHERE a IN ia3 ORDER BY a
+  }
+} {x045 x123 x678}
+
+do_test intarray-1.4 {
+  db eval {
+    SELECT count(b) FROM t1 WHERE a NOT IN ia3 ORDER BY a
+  }
+} {996}
+
+#explain {SELECT b FROM t1 WHERE a NOT IN ia3}
+
+do_test intarray-1.5 {
+  set cmd sqlite3_intarray_bind
+  lappend cmd $ia1
+  for {set i 1} {$i<=999} {incr i} {
+    lappend cmd $i
+    lappend cmd [expr {$i+1000}]
+    lappend cmd [expr {$i+2000}]
+  }
+  eval $cmd
+  db eval {
+    REPLACE INTO t1 SELECT * FROM t2;
+    DELETE FROM t1 WHERE a NOT IN ia1;
+    SELECT count(*) FROM t1;
+  }
+} {999}
+
+do_test intarray-1.6 {
+  db eval {
+    DELETE FROM t1 WHERE a IN ia1;
+    SELECT count(*) FROM t1;
+  }
+} {0}
+
+do_test intarray-2.1 {
+  db eval {
+    CREATE TEMP TABLE t3(p,q);
+    INSERT INTO t3 SELECT * FROM t2;
+    SELECT count(*) FROM t3 WHERE p IN ia1;
+  }
+} {999}
+
+do_test intarray-2.2 {
+  set ia5 [sqlite3_intarray_create db ia5]
+  db eval {
+    SELECT count(*) FROM t3 WHERE p IN ia1;
+  }
+} {999}
+
+finish_test
diff --git a/test/interrupt.test b/test/interrupt.test
new file mode 100644
index 0000000000000000000000000000000000000000..23d986987432c76f68a14146613d9bab75361ede
--- /dev/null
+++ b/test/interrupt.test
@@ -0,0 +1,199 @@
+# 2004 Feb 8
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is the sqlite_interrupt() API.
+#
+# $Id: interrupt.test,v 1.16 2008/01/16 17:46:38 drh Exp $
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set DB [sqlite3_connection_pointer db]
+
+# This routine attempts to execute the sql in $sql.  It triggers an
+# interrupt at progressively later and later points during the processing
+# and checks to make sure SQLITE_INTERRUPT is returned.  Eventually,
+# the routine completes successfully.
+#
+proc interrupt_test {testid sql result {initcnt 0}} {
+  set orig_sum [cksum]
+  set i $initcnt
+  while 1 {
+    incr i
+    set ::sqlite_interrupt_count $i
+    do_test $testid.$i.1 [format {
+      set ::r [catchsql %s]
+      set ::code [db errorcode]
+      expr {$::code==0 || $::code==9}
+    } [list $sql]] 1
+    if {$::code==9} {
+      do_test $testid.$i.2 {
+        cksum
+      } $orig_sum
+    } else {
+      do_test $testid.$i.99 {
+        set ::r
+      } [list 0 $result]
+      break
+    }
+  }
+  set ::sqlite_interrupt_count 0
+}
+
+do_test interrupt-1.1 {
+  execsql {
+    CREATE TABLE t1(a,b);
+    SELECT name FROM sqlite_master;
+  }
+} {t1}
+interrupt_test interrupt-1.2 {DROP TABLE t1} {}
+do_test interrupt-1.3 {
+  execsql {
+    SELECT name FROM sqlite_master;
+  }
+} {}
+integrity_check interrupt-1.4
+
+do_test interrrupt-2.1 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t1(a,b);
+    INSERT INTO t1 VALUES(1,randstr(300,400));
+    INSERT INTO t1 SELECT a+1, randstr(300,400) FROM t1;
+    INSERT INTO t1 SELECT a+2, a || '-' || b FROM t1;
+    INSERT INTO t1 SELECT a+4, a || '-' || b FROM t1;
+    INSERT INTO t1 SELECT a+8, a || '-' || b FROM t1;
+    INSERT INTO t1 SELECT a+16, a || '-' || b FROM t1;
+    INSERT INTO t1 SELECT a+32, a || '-' || b FROM t1;
+    COMMIT;
+    UPDATE t1 SET b=substr(b,-5,5);
+    SELECT count(*) from t1;
+  }
+} 64
+set origsize [file size test.db]
+set cksum [db eval {SELECT md5sum(a || b) FROM t1}]
+ifcapable {vacuum} {
+  interrupt_test interrupt-2.2 {VACUUM} {} 100
+}
+do_test interrupt-2.3 {
+  execsql {
+    SELECT md5sum(a || b) FROM t1;
+  }
+} $cksum
+ifcapable {vacuum && !default_autovacuum} {
+  do_test interrupt-2.4 {
+    expr {$::origsize>[file size test.db]}
+  } 1
+}
+ifcapable {explain} {
+  do_test interrupt-2.5.1 {
+    sqlite3_is_interrupted $DB
+  } {0}
+  do_test interrupt-2.5.2 {
+    unset -nocomplain ::interrupt_count
+    set ::interrupt_count 0
+    set sql {EXPLAIN SELECT max(a,b), a, b FROM t1}
+    execsql $sql
+    set rc [catch {db eval $sql {
+      sqlite3_interrupt $DB;
+      incr ::interrupt_count [sqlite3_is_interrupted $DB];
+    }} msg]
+    lappend rc $msg
+  } {1 interrupted}
+  do_test interrupt-2.5.3 {
+    set ::interrupt_count
+  } {1}
+}
+integrity_check interrupt-2.6
+do_test interrupt-2.7 {
+  sqlite3_is_interrupted $DB
+} {0}
+
+# Ticket #594.  If an interrupt occurs in the middle of a transaction
+# and that transaction is later rolled back, the internal schema tables do
+# not reset.
+#
+# UPDATE: Interrupting a DML statement in the middle of a transaction now
+# causes the transaction to roll back. Leaving the transaction open after
+# an SQL statement was interrupted halfway through risks database corruption.
+#
+ifcapable tempdb {
+  for {set i 1} {$i<50} {incr i 5} {
+    do_test interrupt-3.$i.1 {
+      execsql {
+        BEGIN;
+        CREATE TEMP TABLE t2(x,y);
+        SELECT name FROM sqlite_temp_master;
+      }
+    } {t2}
+    do_test interrupt-3.$i.2 {
+      set ::sqlite_interrupt_count $::i
+      catchsql {
+        INSERT INTO t2 SELECT * FROM t1;
+      }
+    } {1 interrupted}
+    do_test interrupt-3.$i.3 {
+      execsql {
+        SELECT name FROM temp.sqlite_master;
+      }
+    } {}
+    do_test interrupt-3.$i.4 {
+      catchsql {
+        ROLLBACK
+      }
+    } {1 {cannot rollback - no transaction is active}}
+    do_test interrupt-3.$i.5 {
+      catchsql {SELECT name FROM sqlite_temp_master};
+      execsql {
+        SELECT name FROM temp.sqlite_master;
+      }
+    } {}
+  }
+}
+
+# There are reports of a memory leak if an interrupt occurs during
+# the beginning of a complex query - before the first callback.  We
+# will try to reproduce it here:
+#
+execsql {
+  CREATE TABLE t2(a,b,c);
+  INSERT INTO t2 SELECT round(a/10), randstr(50,80), randstr(50,60) FROM t1;
+}
+set sql {
+  SELECT max(min(b,c)), min(max(b,c)), a FROM t2 GROUP BY a ORDER BY a;
+}
+set sqlite_interrupt_count 1000000
+execsql $sql
+set max_count [expr {1000000-$sqlite_interrupt_count}]
+for {set i 1} {$i<$max_count-5} {incr i 1} {
+  do_test interrupt-4.$i.1 {
+    set ::sqlite_interrupt_count $::i
+    catchsql $sql
+  } {1 interrupted}
+}
+
+if {0} {  # This doesn't work anymore since the collation factor is
+          # no longer called during schema parsing.
+# Interrupt during parsing
+#
+do_test interrupt-5.1 {
+  proc fake_interrupt {args} {
+    db collate fake_collation no-op
+    sqlite3_interrupt db
+    return SQLITE_OK
+  }
+  db collation_needed fake_interrupt
+  catchsql {
+    CREATE INDEX fake ON fake1(a COLLATE fake_collation, b, c DESC);
+  }
+} {1 interrupt}
+}
+finish_test
diff --git a/test/interrupt2.test b/test/interrupt2.test
new file mode 100644
index 0000000000000000000000000000000000000000..b9c66bd1f4c1aa06e7127e5c5c1fc3d605023ecc
--- /dev/null
+++ b/test/interrupt2.test
@@ -0,0 +1,159 @@
+# 2016 Aug 12
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is using the sqlite_interrupt() API to 
+# interrupt WAL checkpoint operations.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/wal_common.tcl
+set testprefix interrupt2
+
+if {[permutation]=="journaltest" || [permutation]=="inmemory_journal"} {
+  finish_test
+  return
+}
+
+db close
+testvfs tvfs -default 1
+
+tvfs filter xWrite
+tvfs script write_cb
+
+set ::trigger_interrupt 0
+proc write_cb {method args} {
+  set filename [lindex $args 0]
+  if {[file tail $filename]=="test.db" && $::trigger_interrupt} {
+    if {$::trigger_interrupt} {
+      incr ::trigger_interrupt -1
+      if {$::trigger_interrupt==0} { sqlite3_interrupt db }
+    }
+  }
+  return 0
+}
+
+sqlite3 db test.db 
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b);
+  CREATE INDEX t1a ON t1(a);
+  CREATE INDEX t1b ON t1(b);
+  PRAGMA journal_mode = wal;
+
+  WITH ii(i) AS ( VALUES(1) UNION ALL SELECT i+1 FROM ii WHERE i<1000 )
+  INSERT INTO t1 SELECT i, i FROM ii;
+} {wal}
+
+foreach idelay {
+  5
+  10
+  15
+  20
+} {
+
+  set ::trigger_interrupt $idelay
+  do_catchsql_test 1.$idelay.1 { PRAGMA wal_checkpoint; } {1 interrupted}
+  do_execsql_test  1.$idelay.2 { SELECT count(*) FROM t1 } 1000
+
+  set ::trigger_interrupt $idelay
+  do_test 1.$idelay.3 { 
+    list [catch { sqlite3_wal_checkpoint_v2 db truncate } msg] $msg
+  } {1 {SQLITE_INTERRUPT - interrupted}}
+  do_execsql_test  1.$idelay.4 { SELECT count(*) FROM t1 } 1000
+}
+
+#-------------------------------------------------------------------------
+# Check that if there are other SQL statements running, a checkpoint does
+# not clear the isInterrupted flag.
+#
+do_execsql_test 2.0 {
+  CREATE TEMP TABLE z1(a, b);
+  INSERT INTO z1 SELECT * FROM t1;
+}
+
+do_test 2.1 {
+  set i 10
+  set res [list [catch {
+    set i 10
+    db eval {SELECT * FROM z1} {
+      incr i -1
+      if {$i==0} {
+        set ::trigger_interrupt 10
+        set cres [catch { sqlite3_wal_checkpoint_v2 db truncate } msg] 
+        lappend cres $msg
+      }
+    }
+  } msg] $msg]
+
+  list $cres $res
+} {{1 {SQLITE_INTERRUPT - interrupted}} {1 interrupted}}
+
+do_execsql_test 2.0 {
+  SELECT count(*) FROM t1
+  UNION ALL
+  SELECT count(*) FROM z1
+} {1000 1000}
+
+#-------------------------------------------------------------------------
+# Check the effect of an interrupt during sqlite3_close().
+#
+db_save_and_close
+
+db_restore_and_reopen
+do_test 3.1.1 {
+  set ::trigger_interrupt 10
+  db eval { SELECT * FROM sqlite_master }
+  db close
+  set {} {}
+} {}
+do_test 3.1.2 {
+  list [file exists test.db] [file exists test.db-wal]
+} {1 1}
+
+db_restore_and_reopen
+do_test 3.2.1 {
+  db eval { SELECT * FROM sqlite_master }
+  db close
+  set {} {}
+} {}
+do_test 3.2.2 {
+  list [file exists test.db] [file exists test.db-wal]
+} {1 0}
+
+#-------------------------------------------------------------------------
+# Check the effect of an interrupt during an automatic checkpoint
+#
+db_restore_and_reopen
+do_test 4.0 { 
+  execsql { PRAGMA wal_autocheckpoint = 10 }
+  set ::trigger_interrupt 10
+  execsql { CREATE TABLE t2(x, y) }
+} {}
+
+# The auto-checkpoint in test 4.0 should have been interrupted. So this
+# db write should cause the wal file to grow.
+do_test 4.1 {
+  set nFrame1 [wal_frame_count test.db-wal 1024]
+  execsql { CREATE TABLE t3(x, y) }
+  set nFrame2 [wal_frame_count test.db-wal 1024]
+  expr $nFrame2 > $nFrame1
+} {1}
+
+# The auto-checkpoint in test 4.0 should not have been interrupted. So 
+# this db write should not cause the wal file to grow.
+do_test 4.2 {
+  set nFrame1 [wal_frame_count test.db-wal 1024]
+  execsql { CREATE TABLE t4(x, y) }
+  set nFrame2 [wal_frame_count test.db-wal 1024]
+  expr $nFrame2 == $nFrame1
+} {1}
+
+finish_test
diff --git a/test/intpkey.test b/test/intpkey.test
new file mode 100644
index 0000000000000000000000000000000000000000..d6b8833a273521936677afed43a175490ae3be48
--- /dev/null
+++ b/test/intpkey.test
@@ -0,0 +1,645 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests for the special processing associated
+# with INTEGER PRIMARY KEY columns.
+#
+# $Id: intpkey.test,v 1.24 2007/11/29 17:43:28 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Create a table with a primary key and a datatype other than
+# integer
+#
+do_test intpkey-1.0 {
+  execsql {
+    CREATE TABLE t1(a TEXT PRIMARY KEY, b, c);
+  }
+} {}
+
+# There should be an index associated with the primary key
+#
+do_test intpkey-1.1 {
+  execsql {
+    SELECT name FROM sqlite_master
+    WHERE type='index' AND tbl_name='t1';
+  }
+} {sqlite_autoindex_t1_1}
+
+# Now create a table with an integer primary key and verify that
+# there is no associated index.
+#
+do_test intpkey-1.2 {
+  execsql {
+    DROP TABLE t1;
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+    SELECT name FROM sqlite_master
+      WHERE type='index' AND tbl_name='t1';
+  }
+} {}
+
+# Insert some records into the new table.  Specify the primary key
+# and verify that the key is used as the record number.
+#
+do_test intpkey-1.3 {
+  execsql {
+    INSERT INTO t1 VALUES(5,'hello','world');
+  }
+  db last_insert_rowid
+} {5}
+do_test intpkey-1.4 {
+  execsql {
+    SELECT * FROM t1;
+  }
+} {5 hello world}
+do_test intpkey-1.5 {
+  execsql {
+    SELECT rowid, * FROM t1;
+  }
+} {5 5 hello world}
+
+# Attempting to insert a duplicate primary key should give a constraint
+# failure.
+#
+do_test intpkey-1.6 {
+  set r [catch {execsql {
+     INSERT INTO t1 VALUES(5,'second','entry');
+  }} msg]
+  lappend r $msg
+} {1 {UNIQUE constraint failed: t1.a}}
+do_test intpkey-1.7 {
+  execsql {
+    SELECT rowid, * FROM t1;
+  }
+} {5 5 hello world}
+do_test intpkey-1.8 {
+  set r [catch {execsql {
+     INSERT INTO t1 VALUES(6,'second','entry');
+  }} msg]
+  lappend r $msg
+} {0 {}}
+do_test intpkey-1.8.1 {
+  db last_insert_rowid
+} {6}
+do_test intpkey-1.9 {
+  execsql {
+    SELECT rowid, * FROM t1;
+  }
+} {5 5 hello world 6 6 second entry}
+
+# A ROWID is automatically generated for new records that do not specify
+# the integer primary key.
+#
+do_test intpkey-1.10 {
+  execsql {
+    INSERT INTO t1(b,c) VALUES('one','two');
+    SELECT b FROM t1 ORDER BY b;
+  }
+} {hello one second}
+
+# Try to change the ROWID for the new entry.
+#
+do_test intpkey-1.11 {
+  execsql {
+    UPDATE t1 SET a=4 WHERE b='one';
+    SELECT * FROM t1;
+  }
+} {4 one two 5 hello world 6 second entry}
+
+# Make sure SELECT statements are able to use the primary key column
+# as an index.
+#
+do_test intpkey-1.12.1 {
+  execsql {
+    SELECT * FROM t1 WHERE a==4;
+  }
+} {4 one two}
+do_test intpkey-1.12.2 {
+  execsql {
+    EXPLAIN QUERY PLAN
+    SELECT * FROM t1 WHERE a==4;
+  }
+} {/SEARCH t1 /}
+
+# Try to insert a non-integer value into the primary key field.  This
+# should result in a data type mismatch.
+#
+do_test intpkey-1.13.1 {
+  set r [catch {execsql {
+    INSERT INTO t1 VALUES('x','y','z');
+  }} msg]
+  lappend r $msg
+} {1 {datatype mismatch}}
+do_test intpkey-1.13.2 {
+  set r [catch {execsql {
+    INSERT INTO t1 VALUES('','y','z');
+  }} msg]
+  lappend r $msg
+} {1 {datatype mismatch}}
+do_test intpkey-1.14 {
+  set r [catch {execsql {
+    INSERT INTO t1 VALUES(3.4,'y','z');
+  }} msg]
+  lappend r $msg
+} {1 {datatype mismatch}}
+do_test intpkey-1.15 {
+  set r [catch {execsql {
+    INSERT INTO t1 VALUES(-3,'y','z');
+  }} msg]
+  lappend r $msg
+} {0 {}}
+do_test intpkey-1.16 {
+  execsql {SELECT * FROM t1}
+} {-3 y z 4 one two 5 hello world 6 second entry}
+
+#### INDICES
+# Check to make sure indices work correctly with integer primary keys
+#
+do_test intpkey-2.1 {
+  execsql {
+    CREATE INDEX i1 ON t1(b);
+    SELECT * FROM t1 WHERE b=='y'
+  }
+} {-3 y z}
+do_test intpkey-2.1.1 {
+  execsql {
+    SELECT * FROM t1 WHERE b=='y' AND rowid<0
+  }
+} {-3 y z}
+do_test intpkey-2.1.2 {
+  execsql {
+    SELECT * FROM t1 WHERE b=='y' AND rowid<0 AND rowid>=-20
+  }
+} {-3 y z}
+do_test intpkey-2.1.3 {
+  execsql {
+    SELECT * FROM t1 WHERE b>='y'
+  }
+} {-3 y z}
+do_test intpkey-2.1.4 {
+  execsql {
+    SELECT * FROM t1 WHERE b>='y' AND rowid<10
+  }
+} {-3 y z}
+
+do_test intpkey-2.2 {
+  execsql {
+    UPDATE t1 SET a=8 WHERE b=='y';
+    SELECT * FROM t1 WHERE b=='y';
+  }
+} {8 y z}
+do_test intpkey-2.3 {
+  execsql {
+    SELECT rowid, * FROM t1;
+  }
+} {4 4 one two 5 5 hello world 6 6 second entry 8 8 y z}
+do_test intpkey-2.4 {
+  execsql {
+    SELECT rowid, * FROM t1 WHERE b<'second'
+  }
+} {5 5 hello world 4 4 one two}
+do_test intpkey-2.4.1 {
+  execsql {
+    SELECT rowid, * FROM t1 WHERE 'second'>b
+  }
+} {5 5 hello world 4 4 one two}
+do_test intpkey-2.4.2 {
+  execsql {
+    SELECT rowid, * FROM t1 WHERE 8>rowid AND 'second'>b
+  }
+} {4 4 one two 5 5 hello world}
+do_test intpkey-2.4.3 {
+  execsql {
+    SELECT rowid, * FROM t1 WHERE 8>rowid AND 'second'>b AND 0<rowid
+  }
+} {4 4 one two 5 5 hello world}
+do_test intpkey-2.5 {
+  execsql {
+    SELECT rowid, * FROM t1 WHERE b>'a'
+  }
+} {5 5 hello world 4 4 one two 6 6 second entry 8 8 y z}
+do_test intpkey-2.6 {
+  execsql {
+    DELETE FROM t1 WHERE rowid=4;
+    SELECT * FROM t1 WHERE b>'a';
+  }
+} {5 hello world 6 second entry 8 y z}
+do_test intpkey-2.7 {
+  execsql {
+    UPDATE t1 SET a=-4 WHERE rowid=8;
+    SELECT * FROM t1 WHERE b>'a';
+  }
+} {5 hello world 6 second entry -4 y z}
+do_test intpkey-2.7 {
+  execsql {
+    SELECT * FROM t1
+  }
+} {-4 y z 5 hello world 6 second entry}
+
+# Do an SQL statement.  Append the search count to the end of the result.
+#
+proc count sql {
+  set ::sqlite_search_count 0
+  return [concat [execsql $sql] $::sqlite_search_count]
+}
+
+# Create indices that include the integer primary key as one of their
+# columns.
+#
+do_test intpkey-3.1 {
+  execsql {
+    CREATE INDEX i2 ON t1(a);
+  }
+} {}
+do_test intpkey-3.2 {
+  count {
+    SELECT * FROM t1 WHERE a=5;
+  }
+} {5 hello world 0}
+do_test intpkey-3.3 {
+  count {
+    SELECT * FROM t1 WHERE a>4 AND a<6;
+  }
+} {5 hello world 2}
+do_test intpkey-3.4 {
+  count {
+    SELECT * FROM t1 WHERE b>='hello' AND b<'hello2';
+  }
+} {5 hello world 3}
+do_test intpkey-3.5 {
+  execsql {
+    CREATE INDEX i3 ON t1(c,a);
+  }
+} {}
+do_test intpkey-3.6 {
+  count {
+    SELECT * FROM t1 WHERE c=='world';
+  }
+} {5 hello world 3}
+do_test intpkey-3.7 {
+  execsql {INSERT INTO t1 VALUES(11,'hello','world')}
+  count {
+    SELECT * FROM t1 WHERE c=='world';
+  }
+} {5 hello world 11 hello world 5}
+do_test intpkey-3.8 {
+  count {
+    SELECT * FROM t1 WHERE c=='world' AND a>7;
+  }
+} {11 hello world 3}
+do_test intpkey-3.9 {
+  count {
+    SELECT * FROM t1 WHERE 7<a;
+  }
+} {11 hello world 1}
+
+# Test inequality constraints on integer primary keys and rowids
+#
+do_test intpkey-4.1 {
+  count {
+    SELECT * FROM t1 WHERE 11=rowid
+  }
+} {11 hello world 0}
+do_test intpkey-4.2 {
+  count {
+    SELECT * FROM t1 WHERE 11=rowid AND b=='hello'
+  }
+} {11 hello world 0}
+do_test intpkey-4.3 {
+  count {
+    SELECT * FROM t1 WHERE 11=rowid AND b=='hello' AND c IS NOT NULL;
+  }
+} {11 hello world 0}
+do_test intpkey-4.4 {
+  count {
+    SELECT * FROM t1 WHERE rowid==11
+  }
+} {11 hello world 0}
+do_test intpkey-4.5 {
+  count {
+    SELECT * FROM t1 WHERE oid==11 AND b=='hello'
+  }
+} {11 hello world 0}
+do_test intpkey-4.6 {
+  count {
+    SELECT * FROM t1 WHERE a==11 AND b=='hello' AND c IS NOT NULL;
+  }
+} {11 hello world 0}
+
+do_test intpkey-4.7 {
+  count {
+    SELECT * FROM t1 WHERE 8<rowid;
+  }
+} {11 hello world 1}
+do_test intpkey-4.8 {
+  count {
+    SELECT * FROM t1 WHERE 8<rowid AND 11>=oid;
+  }
+} {11 hello world 1}
+do_test intpkey-4.9 {
+  count {
+    SELECT * FROM t1 WHERE 11<=_rowid_ AND 12>=a;
+  }
+} {11 hello world 1}
+do_test intpkey-4.10 {
+  count {
+    SELECT * FROM t1 WHERE 0>=_rowid_;
+  }
+} {-4 y z 1}
+do_test intpkey-4.11 {
+  count {
+    SELECT * FROM t1 WHERE a<0;
+  }
+} {-4 y z 1}
+do_test intpkey-4.12 {
+  count {
+    SELECT * FROM t1 WHERE a<0 AND a>10;
+  }
+} {1}
+
+# Make sure it is OK to insert a rowid of 0
+#
+do_test intpkey-5.1 {
+  execsql {
+    INSERT INTO t1 VALUES(0,'zero','entry');
+  }
+  count {
+    SELECT * FROM t1 WHERE a=0;
+  }
+} {0 zero entry 0}
+do_test intpkey-5.2 {
+  execsql {
+    SELECT rowid, a FROM t1 ORDER BY rowid
+  }
+} {-4 -4 0 0 5 5 6 6 11 11}
+
+# Test the ability of the COPY command to put data into a
+# table that contains an integer primary key.
+#
+# COPY command has been removed.  But we retain these tests so
+# that the tables will contain the right data for tests that follow.
+#
+do_test intpkey-6.1 {
+  execsql {
+    BEGIN;
+    INSERT INTO t1 VALUES(20,'b-20','c-20');
+    INSERT INTO t1 VALUES(21,'b-21','c-21');
+    INSERT INTO t1 VALUES(22,'b-22','c-22');
+    COMMIT;
+    SELECT * FROM t1 WHERE a>=20;
+  }
+} {20 b-20 c-20 21 b-21 c-21 22 b-22 c-22}
+do_test intpkey-6.2 {
+  execsql {
+    SELECT * FROM t1 WHERE b=='hello'
+  }
+} {5 hello world 11 hello world}
+do_test intpkey-6.3 {
+  execsql {
+    DELETE FROM t1 WHERE b='b-21';
+    SELECT * FROM t1 WHERE b=='b-21';
+  }
+} {}
+do_test intpkey-6.4 {
+  execsql {
+    SELECT * FROM t1 WHERE a>=20
+  }
+} {20 b-20 c-20 22 b-22 c-22}
+
+# Do an insert of values with the columns specified out of order.
+#
+do_test intpkey-7.1 {
+  execsql {
+    INSERT INTO t1(c,b,a) VALUES('row','new',30);
+    SELECT * FROM t1 WHERE rowid>=30;
+  }
+} {30 new row}
+do_test intpkey-7.2 {
+  execsql {
+    SELECT * FROM t1 WHERE rowid>20;
+  }
+} {22 b-22 c-22 30 new row}
+
+# Do an insert from a select statement.
+#
+do_test intpkey-8.1 {
+  execsql {
+    CREATE TABLE t2(x INTEGER PRIMARY KEY, y, z);
+    INSERT INTO t2 SELECT * FROM t1;
+    SELECT rowid FROM t2;
+  }
+} {-4 0 5 6 11 20 22 30}
+do_test intpkey-8.2 {
+  execsql {
+    SELECT x FROM t2;
+  }
+} {-4 0 5 6 11 20 22 30}
+
+do_test intpkey-9.1 {
+  execsql {
+    UPDATE t1 SET c='www' WHERE c='world';
+    SELECT rowid, a, c FROM t1 WHERE c=='www';
+  }
+} {5 5 www 11 11 www}
+
+
+# Check insert of NULL for primary key
+#
+do_test intpkey-10.1 {
+  execsql {
+    DROP TABLE t2;
+    CREATE TABLE t2(x INTEGER PRIMARY KEY, y, z);
+    INSERT INTO t2 VALUES(NULL, 1, 2);
+    SELECT * from t2;
+  }
+} {1 1 2}
+do_test intpkey-10.2 {
+  execsql {
+    INSERT INTO t2 VALUES(NULL, 2, 3);
+    SELECT * from t2 WHERE x=2;
+  }
+} {2 2 3}
+do_test intpkey-10.3 {
+  execsql {
+    INSERT INTO t2 SELECT NULL, z, y FROM t2;
+    SELECT * FROM t2;
+  }
+} {1 1 2 2 2 3 3 2 1 4 3 2}
+
+# This tests checks to see if a floating point number can be used
+# to reference an integer primary key.
+#
+do_test intpkey-11.1 {
+  execsql {
+    SELECT b FROM t1 WHERE a=2.0+3.0;
+  }
+} {hello}
+do_test intpkey-11.1 {
+  execsql {
+    SELECT b FROM t1 WHERE a=2.0+3.5;
+  }
+} {}
+
+integrity_check intpkey-12.1
+
+# Try to use a string that looks like a floating point number as
+# an integer primary key.  This should actually work when the floating
+# point value can be rounded to an integer without loss of data.
+#
+do_test intpkey-13.1 {
+  execsql {
+    SELECT * FROM t1 WHERE a=1;
+  }
+} {}
+do_test intpkey-13.2 {
+  execsql {
+    INSERT INTO t1 VALUES('1.0',2,3);
+    SELECT * FROM t1 WHERE a=1;
+  }
+} {1 2 3}
+do_test intpkey-13.3 {
+  catchsql {
+    INSERT INTO t1 VALUES('1.5',3,4);
+  }
+} {1 {datatype mismatch}}
+ifcapable {bloblit} {
+  do_test intpkey-13.4 {
+    catchsql {
+      INSERT INTO t1 VALUES(x'123456',3,4);
+    }
+  } {1 {datatype mismatch}}
+}
+do_test intpkey-13.5 {
+  catchsql {
+    INSERT INTO t1 VALUES('+1234567890',3,4);
+  }
+} {0 {}}
+
+# Compare an INTEGER PRIMARY KEY against a TEXT expression. The INTEGER
+# affinity should be applied to the text value before the comparison
+# takes place.
+#
+do_test intpkey-14.1 {
+  execsql {
+    CREATE TABLE t3(a INTEGER PRIMARY KEY, b INTEGER, c TEXT);
+    INSERT INTO t3 VALUES(1, 1, 'one');
+    INSERT INTO t3 VALUES(2, 2, '2');
+    INSERT INTO t3 VALUES(3, 3, 3);
+  }
+} {}
+do_test intpkey-14.2 {
+  execsql {
+    SELECT * FROM t3 WHERE a>2;
+  }
+} {3 3 3}
+do_test intpkey-14.3 {
+  execsql {
+    SELECT * FROM t3 WHERE a>'2';
+  }
+} {3 3 3}
+do_test intpkey-14.4 {
+  execsql {
+    SELECT * FROM t3 WHERE a<'2';
+  }
+} {1 1 one}
+do_test intpkey-14.5 {
+  execsql {
+    SELECT * FROM t3 WHERE a<c;
+  }
+} {1 1 one}
+do_test intpkey-14.6 {
+  execsql {
+    SELECT * FROM t3 WHERE a=c;
+  }
+} {2 2 2 3 3 3}
+
+# Check for proper handling of primary keys greater than 2^31.
+# Ticket #1188
+#
+do_test intpkey-15.1 {
+  execsql {
+    INSERT INTO t1 VALUES(2147483647, 'big-1', 123);
+    SELECT * FROM t1 WHERE a>2147483648;
+  }
+} {}
+do_test intpkey-15.2 {
+  execsql {
+    INSERT INTO t1 VALUES(NULL, 'big-2', 234);
+    SELECT b FROM t1 WHERE a>=2147483648;
+  }
+} {big-2}
+do_test intpkey-15.3 {
+  execsql {
+    SELECT b FROM t1 WHERE a>2147483648;
+  }
+} {}
+do_test intpkey-15.4 {
+  execsql {
+    SELECT b FROM t1 WHERE a>=2147483647;
+  }
+} {big-1 big-2}
+do_test intpkey-15.5 {
+  execsql {
+    SELECT b FROM t1 WHERE a<2147483648;
+  }
+} {y zero 2 hello second hello b-20 b-22 new 3 big-1}
+do_test intpkey-15.6 {
+  execsql {
+    SELECT b FROM t1 WHERE a<12345678901;
+  }
+} {y zero 2 hello second hello b-20 b-22 new 3 big-1 big-2}
+do_test intpkey-15.7 {
+  execsql {
+    SELECT b FROM t1 WHERE a>12345678901;
+  }
+} {}
+
+# 2016-04-18 ticket https://www.sqlite.org/src/tktview/7d7525cb01b68712495d3a
+# Be sure to escape quoted typenames.
+#
+do_execsql_test intpkey-16.0 {
+  CREATE TABLE t16a(id "INTEGER" PRIMARY KEY AUTOINCREMENT, b [TEXT], c `INT`);
+} {}
+do_execsql_test intpkey-16.1 {
+  PRAGMA table_info=t16a;
+} {0 id INTEGER 0 {} 1 1 b TEXT 0 {} 0 2 c INT 0 {} 0}
+
+# 2016-05-06 ticket https://www.sqlite.org/src/tktview/16c9801ceba4923939085
+# When the schema contains an index on the IPK and no other index
+# and a WHERE clause on a delete uses an OR where both sides referencing
+# the IPK, then it is possible that the OP_Delete will fail because there
+# deferred seek of the OP_Seek is not resolved prior to reaching the OP_Delete.
+#
+do_execsql_test intpkey-17.0 {
+  CREATE TABLE t17(x INTEGER PRIMARY KEY, y TEXT);
+  INSERT INTO t17(x,y) VALUES(123,'elephant'),(248,'giraffe');
+  CREATE INDEX t17x ON t17(x);
+  DELETE FROM t17 WHERE x=99 OR x<130;
+  SELECT * FROM t17;
+} {248 giraffe}
+do_execsql_test intpkey-17.1 {
+  DROP INDEX t17x;
+  DELETE FROM t17;
+  INSERT INTO t17(x,y) VALUES(123,'elephant'),(248,'giraffe');
+  CREATE UNIQUE INDEX t17x ON t17(abs(x));
+  DELETE FROM t17 WHERE abs(x) IS NULL OR abs(x)<130;
+  SELECT * FROM t17;
+} {248 giraffe}
+do_execsql_test intpkey-17.2 {
+  DELETE FROM t17;
+  INSERT INTO t17(x,y) VALUES(123,'elephant'),(248,'giraffe');
+  UPDATE t17 SET y='ostrich' WHERE abs(x)=248;
+  SELECT * FROM t17 ORDER BY +x;
+} {123 elephant 248 ostrich}
+
+finish_test
diff --git a/test/intreal.test b/test/intreal.test
new file mode 100644
index 0000000000000000000000000000000000000000..d9ffe9909ef159720c7e69f25c04f9601f786a5d
--- /dev/null
+++ b/test/intreal.test
@@ -0,0 +1,116 @@
+# 2019-05-03
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# Tests to exercise the MEM_IntReal representation of Mem objects.
+#
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix intreal
+
+sqlite3_create_function db
+do_execsql_test 100 {
+  SELECT intreal(5);
+} {5.0}
+do_execsql_test 110 {
+  SELECT intreal(5)=5, 6=intreal(6);
+} {1 1}
+do_execsql_test 120 {
+  SELECT intreal(7)=7.0, 8.0=intreal(8);
+} {1 1}
+do_execsql_test 130 {
+  SELECT typeof(intreal(9));
+} {real}
+do_execsql_test 140 {
+  SELECT 'a'||intreal(11)||'z';
+} {a11.0z}
+
+do_execsql_test 150 {
+  SELECT max(1.0,intreal(2),3.0), max(1,intreal(2),3);
+} {3.0 3}
+do_execsql_test 160 {
+  SELECT max(1.0,intreal(4),3.0), max(1,intreal(4),3);
+} {4.0 4.0}
+do_execsql_test 170 {
+  SELECT max(1.0,intreal(2),intreal(3),4.0),
+         max(1,intreal(2),intreal(3),4);
+} {4.0 4}
+do_execsql_test 180 {
+  SELECT max(1.0,intreal(5),intreal(3),4.0),
+         max(1,intreal(5),intreal(3),4);
+} {5.0 5.0}
+
+#-------------------------------------------------------------------------
+do_execsql_test 2.1 {
+  CREATE TABLE t2(a REAL);
+  INSERT INTO t2 VALUES( 836627109860825358 );
+  SELECT substr(a,1,4) FROM t2 WHERE a = CAST(836627109860825358 AS REAL);
+} {8.36}
+
+do_execsql_test 2.2 {
+  CREATE INDEX i2 ON t2(a);
+  SELECT substr(a,1,4) FROM t2 WHERE a = CAST(836627109860825358 AS REAL);
+} {8.36}
+
+do_execsql_test 2.3 {
+  CREATE TABLE t0 (c0);
+  CREATE TABLE t1 (c1 REAL);
+  INSERT INTO t1(c1) VALUES (8366271098608253588);
+  INSERT INTO t0(c0) VALUES ('a');
+}
+set D [db one {SELECT c1 FROM t1}]
+
+do_execsql_test 2.4 {
+  SELECT * FROM t1 WHERE (t1.c1 = CAST(8366271098608253588 AS REAL));
+} $D
+
+do_execsql_test 2.5 {
+  SELECT * FROM t0, t1 WHERE (t1.c1 = CAST(8366271098608253588 AS REAL));
+} [list a $D]
+
+do_execsql_test 2.6 {
+  SELECT * FROM t0, t1 
+  WHERE (
+        t1.c1 >= CAST(8366271098608253588 AS REAL) 
+    AND t1.c1 <= CAST(8366271098608253588 AS REAL)
+  );
+} [list a $D]
+
+# 2019-07-29 ticket ba2f4585cf495231
+#
+db close
+sqlite3 db :memory:
+do_execsql_test 3.0 {
+  CREATE TABLE t0 (c0 REAL, c1);
+  CREATE UNIQUE INDEX i0 ON t0(c1, 0 | c0);
+  INSERT INTO t0(c0) VALUES (4750228396194493326), (0);
+  UPDATE OR REPLACE t0 SET c0 = 'a', c1 = '';
+  SELECT * FROM t0 ORDER BY t0.c1;
+  PRAGMA integrity_check;
+} {a {} ok}
+
+
+reset_db
+do_execsql_test 4.0 {
+  CREATE TABLE t1(a REAL, b AS ('expr') ); 
+}
+do_execsql_test 4.1 {
+  INSERT INTO t1 VALUES( REPLACE(0, '', 'expr') );
+}
+do_execsql_test 4.2 {
+  INSERT INTO t1 SELECT REPLACE(4, '', 'expr');
+}
+do_execsql_test 4.3 {
+  SELECT typeof(a), a FROM t1;
+} {
+  real 0.0
+  real 4.0
+}
+
+finish_test
diff --git a/test/io.test b/test/io.test
new file mode 100644
index 0000000000000000000000000000000000000000..dfadcd13620c252d1349b2251149ec9411dfad96
--- /dev/null
+++ b/test/io.test
@@ -0,0 +1,645 @@
+# 2007 August 21
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# The focus of this file is testing some specific characteristics of the 
+# IO traffic generated by SQLite (making sure SQLite is not writing out
+# more database pages than it has to, stuff like that).
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix io
+
+db close
+sqlite3_simulate_device
+sqlite3 db test.db -vfs devsym
+
+# Test summary:
+#
+# io-1.* -  Test that quick-balance does not journal pages unnecessarily.
+#
+# io-2.* -  Test the "atomic-write optimization".
+#
+# io-3.* -  Test the IO traffic enhancements triggered when the 
+#           IOCAP_SEQUENTIAL device capability flag is set (no 
+#           fsync() calls on the journal file).
+#
+# io-4.* -  Test the IO traffic enhancements triggered when the 
+#           IOCAP_SAFE_APPEND device capability flag is set (fewer 
+#           fsync() calls on the journal file, no need to set nRec
+#           field in the single journal header).
+#
+# io-5.* -  Test that the default page size is selected and used 
+#           correctly.
+#
+# io-6.* -  Test that the pager-cache is not being flushed unnecessarily 
+#           after a transaction that uses the special atomic-write path
+#           is committed.
+#           
+
+set ::nWrite 0
+proc nWrite {db} {
+  set bt [btree_from_db $db]
+  db_enter $db
+  array set stats [btree_pager_stats $bt]
+  db_leave $db
+  set res [expr $stats(write) - $::nWrite]
+  set ::nWrite $stats(write)
+  set res
+}
+
+set ::nSync 0
+proc nSync {} {
+  set res [expr {$::sqlite_sync_count - $::nSync}]
+  set ::nSync $::sqlite_sync_count
+  set res
+}
+
+do_test io-1.1 {
+  execsql {
+    PRAGMA auto_vacuum = OFF;
+    PRAGMA page_size = 1024;
+    CREATE TABLE abc(a,b);
+  }
+  nWrite db
+} {2}
+
+# Insert into the table 4 records of aproximately 240 bytes each.
+# This should completely fill the root-page of the table. Each
+# INSERT causes 2 db pages to be written - the root-page of "abc"
+# and page 1 (db change-counter page).
+do_test io-1.2 {
+  set ret [list]
+  execsql { INSERT INTO abc VALUES(1,randstr(230,230)); }
+  lappend ret [nWrite db]
+  execsql { INSERT INTO abc VALUES(2,randstr(230,230)); }
+  lappend ret [nWrite db]
+  execsql { INSERT INTO abc VALUES(3,randstr(230,230)); }
+  lappend ret [nWrite db]
+  execsql { INSERT INTO abc VALUES(4,randstr(230,230)); }
+  lappend ret [nWrite db]
+} {2 2 2 2}
+
+# Insert another 240 byte record. This causes two leaf pages
+# to be added to the root page of abc. 4 pages in total
+# are written to the db file - the two leaf pages, the root
+# of abc and the change-counter page.
+do_test io-1.3 {
+  execsql { INSERT INTO abc VALUES(5,randstr(230,230)); }
+  nWrite db
+} {4}
+
+# Insert another 3 240 byte records. After this, the tree consists of 
+# the root-node, which is close to empty, and two leaf pages, both of 
+# which are full. 
+do_test io-1.4 {
+  set ret [list]
+  execsql { INSERT INTO abc VALUES(6,randstr(230,230)); }
+  lappend ret [nWrite db]
+  execsql { INSERT INTO abc VALUES(7,randstr(230,230)); }
+  lappend ret [nWrite db]
+  execsql { INSERT INTO abc VALUES(8,randstr(230,230)); }
+  lappend ret [nWrite db]
+} {2 2 2}
+
+# This insert should use the quick-balance trick to add a third leaf
+# to the b-tree used to store table abc. It should only be necessary to
+# write to 3 pages to do this: the change-counter, the root-page and
+# the new leaf page.
+do_test io-1.5 {
+  execsql { INSERT INTO abc VALUES(9,randstr(230,230)); }
+  nWrite db
+} {3}
+
+ifcapable atomicwrite {
+
+#----------------------------------------------------------------------
+# Test cases io-2.* test the atomic-write optimization.
+#
+do_test io-2.1 {
+  execsql { DELETE FROM abc; VACUUM; }
+} {}
+
+# Clear the write and sync counts.
+nWrite db ; nSync
+
+# The following INSERT updates 2 pages and requires 4 calls to fsync():
+#
+#   1) The directory in which the journal file is created,
+#   2) The journal file (to sync the page data),
+#   3) The journal file (to sync the journal file header),
+#   4) The database file.
+#
+do_test io-2.2 {
+  execsql { INSERT INTO abc VALUES(1, 2) }
+  list [nWrite db] [nSync]
+} {2 4}
+
+# Set the device-characteristic mask to include the SQLITE_IOCAP_ATOMIC,
+# then do another INSERT similar to the one in io-2.2. This should
+# only write 1 page and require a single fsync().
+# 
+# The single fsync() is the database file. Only one page is reported as
+# written because page 1 - the change-counter page - is written using
+# an out-of-band method that bypasses the write counter.
+#
+# UPDATE: As of [05f98d4eec] (adding SQLITE_DBSTATUS_CACHE_WRITE), the
+# second write is also counted. So this now reports two writes and a
+# single fsync.
+#
+sqlite3_simulate_device -char atomic
+do_test io-2.3 {
+  execsql { INSERT INTO abc VALUES(3, 4) }
+  list [nWrite db] [nSync]
+} {2 1}
+
+# Test that the journal file is not created and the change-counter is
+# updated when the atomic-write optimization is used.
+#
+do_test io-2.4.1 {
+  execsql {
+    BEGIN;
+    INSERT INTO abc VALUES(5, 6);
+  }
+  sqlite3 db2 test.db -vfs devsym
+  execsql { SELECT * FROM abc } db2
+} {1 2 3 4}
+do_test io-2.4.2 {
+  file exists test.db-journal
+} {0}
+do_test io-2.4.3 {
+  execsql { COMMIT }
+  execsql { SELECT * FROM abc } db2
+} {1 2 3 4 5 6}
+db2 close
+
+# Test that the journal file is created and sync()d if the transaction
+# modifies more than one database page, even if the IOCAP_ATOMIC flag
+# is set.
+#
+do_test io-2.5.1 {
+  execsql { CREATE TABLE def(d, e) }
+  nWrite db ; nSync
+  execsql {
+    BEGIN;
+    INSERT INTO abc VALUES(7, 8);
+  }
+  file exists test.db-journal
+} {0}
+do_test io-2.5.2 {
+  execsql { INSERT INTO def VALUES('a', 'b'); }
+  file exists test.db-journal
+} {1}
+do_test io-2.5.3 {
+  execsql { COMMIT }
+  list [nWrite db] [nSync]
+} {3 4}
+
+# Test that the journal file is created and sync()d if the transaction
+# modifies a single database page and also appends a page to the file.
+# Internally, this case is handled differently to the one above. The
+# journal file is not actually created until the 'COMMIT' statement
+# is executed.
+#
+# Changed 2010-03-27:  The size of the database is now stored in 
+# bytes 28..31 and so when a page is added to the database, page 1
+# is immediately modified and the journal file immediately comes into
+# existence.  To fix this test, the BEGIN is changed into a a
+# BEGIN IMMEDIATE and the INSERT is omitted.
+#
+do_test io-2.6.1 {
+  execsql {
+    BEGIN IMMEDIATE;
+    -- INSERT INTO abc VALUES(9, randstr(1000,1000));
+  }
+  file exists test.db-journal
+} {0}
+do_test io-2.6.2 {
+  # Create a file at "test.db-journal". This will prevent SQLite from
+  # opening the journal for exclusive access. As a result, the COMMIT
+  # should fail with SQLITE_CANTOPEN and the transaction rolled back.
+  #
+  file mkdir test.db-journal
+  catchsql {
+    INSERT INTO abc VALUES(9, randstr(1000,1000));
+    COMMIT
+  }
+} {1 {unable to open database file}}
+do_test io-2.6.3 {
+  forcedelete test.db-journal
+  catchsql { COMMIT }
+} {0 {}}
+do_test io-2.6.4 {
+  execsql { SELECT * FROM abc }
+} {1 2 3 4 5 6 7 8}
+
+# Test that if the database modification is part of multi-file commit,
+# the journal file is always created. In this case, the journal file
+# is created during execution of the COMMIT statement, so we have to
+# use the same technique to check that it is created as in the above 
+# block.
+forcedelete test2.db test2.db-journal
+ifcapable attach {
+  do_test io-2.7.1 {
+    execsql {
+      ATTACH 'test2.db' AS aux;
+      PRAGMA aux.page_size = 1024;
+      CREATE TABLE aux.abc2(a, b);
+      BEGIN;
+      INSERT INTO abc VALUES(9, 10);
+    }
+    file exists test.db-journal
+  } {0}
+  do_test io-2.7.2 {
+    execsql { INSERT INTO abc2 SELECT * FROM abc }
+    file exists test2.db-journal
+  } {0}
+  do_test io-2.7.3 {
+    execsql { SELECT * FROM abc UNION ALL SELECT * FROM abc2 }
+  } {1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10}
+  do_test io-2.7.4 {
+    file mkdir test2.db-journal
+    catchsql { COMMIT }
+  } {1 {unable to open database file}}
+  do_test io-2.7.5 {
+    forcedelete test2.db-journal
+    catchsql { COMMIT }
+  } {1 {cannot commit - no transaction is active}}
+  do_test io-2.7.6 {
+    execsql { SELECT * FROM abc UNION ALL SELECT * FROM abc2 }
+  } {1 2 3 4 5 6 7 8}
+}
+
+# Try an explicit ROLLBACK before the journal file is created.
+#
+do_test io-2.8.1 {
+  execsql {
+    BEGIN;
+    DELETE FROM abc;
+  }
+  file exists test.db-journal
+} {0}
+do_test io-2.8.2 {
+  execsql { SELECT * FROM abc }
+} {}
+do_test io-2.8.3 {
+  execsql {
+    ROLLBACK;
+    SELECT * FROM abc;
+  }
+} {1 2 3 4 5 6 7 8}
+
+# Test that the atomic write optimisation is not enabled if the sector
+# size is larger than the page-size.
+#
+do_test io-2.9.1 {
+  db close
+  sqlite3 db test.db
+  sqlite3_simulate_device -char atomic -sectorsize 2048
+  execsql {
+    BEGIN;
+    INSERT INTO abc VALUES(9, 10);
+  }
+  file exists test.db-journal
+} {1}
+do_test io-2.9.2 {
+  execsql { ROLLBACK; }
+  db close
+  forcedelete test.db test.db-journal
+  sqlite3 db test.db -vfs devsym
+  execsql {
+    PRAGMA auto_vacuum = OFF;
+    PRAGMA page_size = 2048;
+    CREATE TABLE abc(a, b);
+  }
+  execsql {
+    BEGIN;
+    INSERT INTO abc VALUES(9, 10);
+  }
+  file exists test.db-journal
+} {0}
+do_test io-2.9.3 {
+  execsql { COMMIT }
+} {}
+
+# Test a couple of the more specific IOCAP_ATOMIC flags 
+# (i.e IOCAP_ATOMIC2K etc.).
+#
+do_test io-2.10.1 {
+  sqlite3_simulate_device -char atomic1k
+  execsql {
+    BEGIN;
+    INSERT INTO abc VALUES(11, 12);
+  }
+  file exists test.db-journal
+} {1}
+do_test io-2.10.2 {
+  execsql { ROLLBACK }
+  sqlite3_simulate_device -char atomic2k
+  execsql {
+    BEGIN;
+    INSERT INTO abc VALUES(11, 12);
+  }
+  file exists test.db-journal
+} {0}
+do_test io-2.10.3 {
+  execsql { ROLLBACK }
+} {}
+
+do_test io-2.11.0 {
+  execsql { 
+    PRAGMA locking_mode = exclusive;
+    PRAGMA locking_mode;
+  }
+} {exclusive exclusive}
+do_test io-2.11.1 {
+  execsql { 
+    INSERT INTO abc VALUES(11, 12);
+  }
+  file exists test.db-journal
+} {0}
+
+do_test io-2.11.2 {
+  execsql { 
+    PRAGMA locking_mode = normal;
+    INSERT INTO abc VALUES(13, 14);
+  }
+  file exists test.db-journal
+} {0}
+
+} ;# /* ifcapable atomicwrite */
+
+#----------------------------------------------------------------------
+# Test cases io-3.* test the IOCAP_SEQUENTIAL optimization.
+#
+sqlite3_simulate_device -char sequential -sectorsize 0
+ifcapable pager_pragmas {
+  do_test io-3.1 {
+    db close
+    forcedelete test.db test.db-journal
+    sqlite3 db test.db -vfs devsym
+    db eval {
+      PRAGMA auto_vacuum=OFF;
+    }
+    # File size might be 1 due to the hack to work around ticket #3260.
+    # Search for #3260 in os_unix.c for additional information.
+    expr {[file size test.db]>1}
+  } {0}
+  do_test io-3.2 {
+    execsql { CREATE TABLE abc(a, b) }
+    nSync
+    execsql {
+      PRAGMA temp_store = memory;
+      PRAGMA cache_size = 10;
+      BEGIN;
+      INSERT INTO abc VALUES('hello', 'world');
+      INSERT INTO abc SELECT * FROM abc;
+      INSERT INTO abc SELECT * FROM abc;
+      INSERT INTO abc SELECT * FROM abc;
+      INSERT INTO abc SELECT * FROM abc;
+      INSERT INTO abc SELECT * FROM abc;
+      INSERT INTO abc SELECT * FROM abc;
+      INSERT INTO abc SELECT * FROM abc;
+      INSERT INTO abc SELECT * FROM abc;
+      INSERT INTO abc SELECT * FROM abc;
+      INSERT INTO abc SELECT * FROM abc;
+      INSERT INTO abc SELECT * FROM abc;
+    }
+    # File has grown - showing there was a cache-spill - but there 
+    # have been no calls to fsync(). The file is probably about 30KB.
+    # But some VFS implementations (symbian) buffer writes so the actual
+    # size may be a little less than that. So this test case just tests
+    # that the file is now greater than 20000 bytes in size.
+    list [expr [file size test.db]>20000] [nSync]
+  } {1 0}
+  do_test io-3.3 {
+    # The COMMIT requires a single fsync() - to the database file.
+    execsql { COMMIT }
+    list [file size test.db] [nSync]
+  } "[expr {[nonzero_reserved_bytes]?40960:39936}] 1"
+}
+
+#----------------------------------------------------------------------
+# Test cases io-4.* test the IOCAP_SAFE_APPEND optimization.
+#
+sqlite3_simulate_device -char safe_append
+
+# With the SAFE_APPEND flag set, simple transactions require 3, rather
+# than 4, calls to fsync(). The fsync() calls are on:
+#
+#   1) The directory in which the journal file is created, (unix only)
+#   2) The journal file (to sync the page data),
+#   3) The database file.
+#
+# Normally, when the SAFE_APPEND flag is not set, there is another fsync()
+# on the journal file between steps (2) and (3) above.
+#
+set expected_sync_count 2
+if {$::tcl_platform(platform)=="unix"} {
+  ifcapable dirsync {
+    incr expected_sync_count
+  }
+}
+
+do_test io-4.1 {
+  execsql { DELETE FROM abc }
+  nSync
+  execsql { INSERT INTO abc VALUES('a', 'b') }
+  nSync
+} $expected_sync_count
+
+# With SAFE_APPEND set, the nRec field of the journal file header should
+# be set to 0xFFFFFFFF before the first journal sync. The nRec field
+# occupies bytes 8-11 of the journal file.
+#
+do_test io-4.2.1 {
+  execsql { BEGIN }
+  execsql { INSERT INTO abc VALUES('c', 'd') }
+  file exists test.db-journal
+} {1}
+if {$::tcl_platform(platform)=="unix"} {
+  do_test io-4.2.2 {
+    hexio_read test.db-journal 8 4
+  } {FFFFFFFF}
+}
+do_test io-4.2.3 {
+  execsql { COMMIT }
+  nSync
+} $expected_sync_count
+sqlite3_simulate_device -char safe_append
+
+# With SAFE_APPEND set, there should only ever be one journal-header
+# written to the database, even though the sync-mode is "full".
+#
+do_test io-4.3.1 {
+  execsql {
+    INSERT INTO abc SELECT * FROM abc;
+    INSERT INTO abc SELECT * FROM abc;
+    INSERT INTO abc SELECT * FROM abc;
+    INSERT INTO abc SELECT * FROM abc;
+    INSERT INTO abc SELECT * FROM abc;
+    INSERT INTO abc SELECT * FROM abc;
+    INSERT INTO abc SELECT * FROM abc;
+    INSERT INTO abc SELECT * FROM abc;
+    INSERT INTO abc SELECT * FROM abc;
+    INSERT INTO abc SELECT * FROM abc;
+    INSERT INTO abc SELECT * FROM abc;
+  }
+  expr {[file size test.db]/1024}
+} {43}
+ifcapable pager_pragmas {
+  do_test io-4.3.2 {
+    execsql {
+      PRAGMA synchronous = full;
+      PRAGMA cache_size = 10;
+      PRAGMA synchronous;
+    }
+  } {2}
+}
+do_test io-4.3.3 {
+  execsql {
+    BEGIN;
+    UPDATE abc SET a = 'x';
+  }
+  file exists test.db-journal
+} {1}
+if {$tcl_platform(platform) != "symbian"} {
+  # This test is not run on symbian because the file-buffer makes it
+  # difficult to predict the exact size of the file as reported by 
+  # [file size].
+  do_test io-4.3.4 {
+    # The UPDATE statement in the statement above modifies 41 pages 
+    # (all pages in the database except page 1 and the root page of 
+    # abc). Because the cache_size is set to 10, this must have required
+    # at least 4 cache-spills. If there were no journal headers written
+    # to the journal file after the cache-spill, then the size of the
+    # journal file is give by:
+    #
+    #    <jrnl file size> = <jrnl header size> + nPage * (<page-size> + 8)
+    #
+    # If the journal file contains additional headers, this formula
+    # will not predict the size of the journal file.
+    #
+    file size test.db-journal
+  } [expr 512 + (1024+8)*41]
+}
+
+#----------------------------------------------------------------------
+# Test cases io-5.* test that the default page size is selected and
+# used correctly.
+#
+set tn 0
+foreach {char                 sectorsize pgsize} {
+         {}                     512      1024
+         {}                    1024      1024
+         {}                    2048      2048
+         {}                    8192      8192
+         {}                   16384      8192
+         {atomic}               512      8192
+         {atomic512}            512      1024
+         {atomic2K}             512      2048
+         {atomic2K}            4096      4096
+         {atomic2K atomic}      512      8192
+         {atomic64K}            512      1024
+} {
+  incr tn
+  if {$pgsize>$::SQLITE_MAX_PAGE_SIZE} continue
+  db close
+  forcedelete test.db test.db-journal
+  sqlite3_simulate_device -char $char -sectorsize $sectorsize
+  sqlite3 db test.db -vfs devsym
+  db eval {
+    PRAGMA auto_vacuum=OFF;
+  }
+  ifcapable !atomicwrite {
+    if {[regexp {^atomic} $char]} continue
+  }
+  do_test io-5.$tn {
+    execsql {
+      CREATE TABLE abc(a, b, c);
+    }
+    expr {[file size test.db]/2}
+  } $pgsize
+}
+
+#----------------------------------------------------------------------
+#
+do_test io-6.1 {
+  db close
+  sqlite3_simulate_device -char atomic
+  forcedelete test.db
+  sqlite3 db test.db -vfs devsym
+  execsql {
+    PRAGMA mmap_size = 0;
+    PRAGMA page_size = 1024;
+    PRAGMA cache_size = 2000;
+    CREATE TABLE t1(x);
+    CREATE TABLE t2(x);
+    CREATE TABLE t3(x);
+    CREATE INDEX i3 ON t3(x);
+    INSERT INTO t3 VALUES(randomblob(100));
+    INSERT INTO t3 SELECT randomblob(100) FROM t3;
+    INSERT INTO t3 SELECT randomblob(100) FROM t3;
+    INSERT INTO t3 SELECT randomblob(100) FROM t3;
+    INSERT INTO t3 SELECT randomblob(100) FROM t3;
+    INSERT INTO t3 SELECT randomblob(100) FROM t3;
+    INSERT INTO t3 SELECT randomblob(100) FROM t3;
+    INSERT INTO t3 SELECT randomblob(100) FROM t3;
+    INSERT INTO t3 SELECT randomblob(100) FROM t3;
+    INSERT INTO t3 SELECT randomblob(100) FROM t3;
+    INSERT INTO t3 SELECT randomblob(100) FROM t3;
+    INSERT INTO t3 SELECT randomblob(100) FROM t3;
+  }
+
+  db_save_and_close
+} {}
+
+foreach {tn sql} {
+  1 { BEGIN;
+        INSERT INTO t1 VALUES('123');
+        INSERT INTO t2 VALUES('456');
+      COMMIT;
+  }
+  2 { BEGIN;
+        INSERT INTO t1 VALUES('123');
+      COMMIT;
+  }
+} {
+
+  # These tests don't work with memsubsys1, as it causes the effective page
+  # cache size to become too small to hold the entire db in memory.
+  if {[permutation] == "memsubsys1"} continue
+
+  db_restore
+  sqlite3 db test.db -vfs devsym
+  execsql {
+    PRAGMA cache_size = 2000;
+    PRAGMA mmap_size = 0;
+    SELECT x FROM t3 ORDER BY rowid;
+    SELECT x FROM t3 ORDER BY x;
+  }
+  do_execsql_test 6.2.$tn.1 { PRAGMA integrity_check } {ok}
+  do_execsql_test 6.2.$tn.2 $sql
+
+  # Corrupt the database file on disk. This should not matter for the
+  # purposes of the following "PRAGMA integrity_check", as the entire
+  # database should be cached in the pager-cache. If corruption is
+  # reported, it indicates that executing $sql caused the pager cache
+  # to be flushed. Which is a bug.
+  hexio_write test.db [expr 1024 * 5] [string repeat 00 2048]
+  do_execsql_test 6.2.$tn.3 { PRAGMA integrity_check } {ok}
+  db close
+}
+
+sqlite3_simulate_device -char {} -sectorsize 0
+unregister_devsim
+
+finish_test
diff --git a/test/ioerr.test b/test/ioerr.test
new file mode 100644
index 0000000000000000000000000000000000000000..fb54d8b3846aca30f69b6e4b3f5a0ab779ca541d
--- /dev/null
+++ b/test/ioerr.test
@@ -0,0 +1,466 @@
+# 2001 October 12
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing for correct handling of I/O errors
+# such as writes failing because the disk is full.
+# 
+# The tests in this file use special facilities that are only
+# available in the SQLite test fixture.
+#
+# $Id: ioerr.test,v 1.43 2009/04/06 17:50:03 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If SQLITE_DEFAULT_AUTOVACUUM is set to true, then a simulated IO error
+# on the 8th IO operation in the SQL script below doesn't report an error.
+#
+# This is because the 8th IO call attempts to read page 2 of the database
+# file when the file on disk is only 1 page. The pager layer detects that
+# this has happened and suppresses the error returned by the OS layer.
+#
+do_ioerr_test ioerr-1 -erc 1 -ckrefcount 1 -sqlprep {
+  SELECT * FROM sqlite_master;
+} -sqlbody {
+  CREATE TABLE t1(a,b,c);
+  SELECT * FROM sqlite_master;
+  BEGIN TRANSACTION;
+  INSERT INTO t1 VALUES(1,2,3);
+  INSERT INTO t1 VALUES(4,5,6);
+  ROLLBACK;
+  SELECT * FROM t1;
+  BEGIN TRANSACTION;
+  INSERT INTO t1 VALUES(1,2,3);
+  INSERT INTO t1 VALUES(4,5,6);
+  COMMIT;
+  SELECT * FROM t1;
+  DELETE FROM t1 WHERE a<100;
+} -exclude [expr [string match [execsql {pragma auto_vacuum}] 1] ? 4 : 0]
+
+# Test for IO errors during a VACUUM. 
+#
+# The first IO call is excluded from the test. This call attempts to read
+# the file-header of the temporary database used by VACUUM. Since the
+# database doesn't exist at that point, the IO error is not detected.
+# 
+# Additionally, if auto-vacuum is enabled, the 12th IO error is not 
+# detected. Same reason as the 8th in the test case above.
+# 
+ifcapable vacuum {
+  do_ioerr_test ioerr-2 -cksum true -ckrefcount true -sqlprep { 
+    BEGIN; 
+    CREATE TABLE t1(a, b, c); 
+    INSERT INTO t1 VALUES(1, randstr(50,50), randstr(50,50)); 
+    INSERT INTO t1 SELECT a+2, b||'-'||rowid, c||'-'||rowid FROM t1; 
+    INSERT INTO t1 SELECT a+4, b||'-'||rowid, c||'-'||rowid FROM t1;
+    INSERT INTO t1 SELECT a+8, b||'-'||rowid, c||'-'||rowid FROM t1;
+    INSERT INTO t1 SELECT a+16, b||'-'||rowid, c||'-'||rowid FROM t1;
+    INSERT INTO t1 SELECT a+32, b||'-'||rowid, c||'-'||rowid FROM t1;
+    INSERT INTO t1 SELECT a+64, b||'-'||rowid, c||'-'||rowid FROM t1;
+    INSERT INTO t1 SELECT a+128, b||'-'||rowid, c||'-'||rowid FROM t1;
+    INSERT INTO t1 VALUES(1, randstr(600,600), randstr(600,600));
+    CREATE TABLE t2 AS SELECT * FROM t1;
+    CREATE TABLE t3 AS SELECT * FROM t1;
+    COMMIT;
+    DROP TABLE t2;
+  } -sqlbody {
+    VACUUM;
+  } -exclude [list \
+      1 [expr [string match [execsql {pragma auto_vacuum}] 1]?9:-1]]
+}
+
+do_ioerr_test ioerr-3 -ckrefcount true -tclprep {
+  execsql {
+    PRAGMA cache_size = 10;
+    BEGIN;
+    CREATE TABLE abc(a);
+    INSERT INTO abc VALUES(randstr(1500,1500)); -- Page 4 is overflow
+  }
+  for {set i 0} {$i<150} {incr i} {
+    execsql {
+      INSERT INTO abc VALUES(randstr(100,100)); 
+    }
+  }
+  execsql COMMIT
+} -sqlbody {
+  CREATE TABLE abc2(a);
+  BEGIN;
+  DELETE FROM abc WHERE length(a)>100;
+  UPDATE abc SET a = randstr(90,90);
+  COMMIT;
+  CREATE TABLE abc3(a);
+} 
+
+# Test IO errors that can occur retrieving a record header that flows over
+# onto an overflow page.
+do_ioerr_test ioerr-4 -ckrefcount true -tclprep {
+  set sql "CREATE TABLE abc(a1"
+  for {set i 2} {$i<1300} {incr i} {
+    append sql ", a$i"
+  }
+  append sql ");"
+  execsql $sql
+  execsql {INSERT INTO abc (a1) VALUES(NULL)}
+} -sqlbody {
+ SELECT * FROM abc;
+}
+
+
+# Test IO errors that may occur during a multi-file commit.
+#
+# Tests 8 and 17 are excluded when auto-vacuum is enabled for the same 
+# reason as in test cases ioerr-1.XXX
+ifcapable attach {
+  set ex ""
+  if {[string match [execsql {pragma auto_vacuum}] 1]} {
+    set ex [list 4 17]
+  }
+  do_ioerr_test ioerr-5 -restoreprng 0 -ckrefcount true -sqlprep {
+    ATTACH 'test2.db' AS test2;
+  } -sqlbody {
+    BEGIN;
+    CREATE TABLE t1(a,b,c);
+    CREATE TABLE test2.t2(a,b,c);
+    COMMIT;
+  } -exclude $ex
+}
+
+# Test IO errors when replaying two hot journals from a 2-file 
+# transaction. This test only runs on UNIX.
+#
+# It cannot be run under the "exclusive" permutation. In that case, the
+# locks held by the connection in the local (this) process prevent a 
+# second connection from attempting the multi-file transaction.
+#
+ifcapable crashtest&&attach {
+  if {![catch {sqlite3 -has-codec} r] && !$r && [permutation]!="exclusive"} {
+    do_ioerr_test ioerr-6 -ckrefcount true -tclprep {
+      execsql {
+        ATTACH 'test2.db' as aux;
+        CREATE TABLE tx(a, b);
+        CREATE TABLE aux.ty(a, b);
+      }
+      set rc [crashsql -delay 2 -file test2.db-journal {
+        ATTACH 'test2.db' as aux;
+        PRAGMA cache_size = 10;
+        BEGIN;
+        CREATE TABLE aux.t2(a, b, c);
+        CREATE TABLE t1(a, b, c);
+        COMMIT;
+      }]
+      if {$rc!="1 {child process exited abnormally}"} {
+        error "Wrong error message: $rc"
+      }
+    } -sqlbody {
+      SELECT * FROM sqlite_master;
+      SELECT * FROM aux.sqlite_master;
+    }
+  }
+} 
+
+# Test handling of IO errors that occur while rolling back hot journal
+# files.
+#
+# These tests can't be run on windows because the windows version of 
+# SQLite holds a mandatory exclusive lock on journal files it has open.
+#
+if {$tcl_platform(platform)!="windows" && ![atomic_batch_write test.db]} {
+  do_ioerr_test ioerr-7 -tclprep {
+    db close
+    sqlite3 db2 test2.db
+    db2 eval {
+      PRAGMA synchronous = 0;
+      CREATE TABLE t1(a, b);
+      INSERT INTO t1 VALUES(1, 2);
+      BEGIN;
+      INSERT INTO t1 VALUES(3, 4);
+    }
+    forcecopy test2.db test.db
+    forcecopy test2.db-journal test.db-journal
+    db2 close
+  } -tclbody {
+    sqlite3 db test.db
+    db eval {
+      SELECT * FROM t1;
+    }
+  } -exclude 1
+}
+
+# For test coverage:  Cause an I/O failure while trying to read a
+# short field (one that fits into a Mem buffer without mallocing
+# for space).
+#
+do_ioerr_test ioerr-8 -ckrefcount true -tclprep {
+  execsql {
+    CREATE TABLE t1(a,b,c);
+    INSERT INTO t1 VALUES(randstr(200,200), randstr(1000,1000), 2);
+  }
+  db close
+  sqlite3 db test.db
+} -sqlbody {
+  SELECT c FROM t1;
+}
+
+# For test coverage: Cause an IO error whilst reading the master-journal
+# name from a journal file.
+if {$tcl_platform(platform)=="unix" && [atomic_batch_write test.db]==0} {
+  do_ioerr_test ioerr-9 -ckrefcount true -tclprep {
+    execsql {
+      CREATE TABLE t1(a,b,c);
+      INSERT INTO t1 VALUES(randstr(200,200), randstr(1000,1000), 2);
+      BEGIN;
+      INSERT INTO t1 VALUES(randstr(200,200), randstr(1000,1000), 2);
+    }
+    forcecopy test.db-journal test2.db-journal
+    execsql {
+      COMMIT;
+    }
+    forcecopy test2.db-journal test.db-journal
+    set f [open test.db-journal a]
+    fconfigure $f -translation binary
+    puts -nonewline $f "hello"
+    puts -nonewline $f "\x00\x00\x00\x05\x01\x02\x03\x04"
+    puts -nonewline $f "\xd9\xd5\x05\xf9\x20\xa1\x63\xd7"
+    close $f
+  } -sqlbody {
+    SELECT a FROM t1;
+  }
+}
+
+# For test coverage: Cause an IO error during statement playback (i.e. 
+# a constraint).
+do_ioerr_test ioerr-10 -ckrefcount true -tclprep {
+  execsql {
+    BEGIN;
+    CREATE TABLE t1(a PRIMARY KEY, b);
+  }
+  for {set i 0} {$i < 500} {incr i} {
+    execsql {INSERT INTO t1 VALUES(:i, 'hello world');}
+  }
+  execsql {
+    COMMIT;
+  }
+} -tclbody {
+
+  catch {execsql {
+    BEGIN;
+    INSERT INTO t1 VALUES('abc', 123);
+    INSERT INTO t1 VALUES('def', 123);
+    INSERT INTO t1 VALUES('ghi', 123);
+    INSERT INTO t1 SELECT (a+500)%900, 'good string' FROM t1;
+  }} msg
+
+  if {$msg != "UNIQUE constraint failed: t1.a"} {
+    error $msg
+  }
+}
+
+# Assertion fault bug reported by alex dimitrov.
+#
+do_ioerr_test ioerr-11 -ckrefcount true -erc 1 -sqlprep {
+   CREATE TABLE A(Id INTEGER, Name TEXT);
+   INSERT INTO A(Id, Name) VALUES(1, 'Name');
+} -sqlbody {
+   UPDATE A SET Id = 2, Name = 'Name2' WHERE Id = 1;
+}
+
+# Test that an io error encountered in a sync() caused by a call to
+# sqlite3_release_memory() is handled Ok. Only try this if 
+# memory-management is enabled.
+#
+ifcapable memorymanage {
+  do_ioerr_test memmanage-ioerr1 -ckrefcount true -sqlprep {
+    BEGIN;
+    CREATE TABLE t1(a, b, c);
+    INSERT INTO t1 VALUES(randstr(50,50), randstr(100,100), randstr(10,10));
+    INSERT INTO t1 SELECT randstr(50,50), randstr(9,9), randstr(90,90) FROM t1;
+    INSERT INTO t1 SELECT randstr(50,50), randstr(9,9), randstr(90,90) FROM t1;
+    INSERT INTO t1 SELECT randstr(50,50), randstr(9,9), randstr(90,90) FROM t1;
+    INSERT INTO t1 SELECT randstr(50,50), randstr(9,9), randstr(90,90) FROM t1;
+    INSERT INTO t1 SELECT randstr(50,50), randstr(9,9), randstr(90,90) FROM t1;
+  } -tclbody {
+    sqlite3_release_memory 
+  } -sqlbody {
+    COMMIT;
+  }
+}
+
+ifcapable pager_pragmas&&autovacuum {
+  do_ioerr_test ioerr-12 -ckrefcount true -erc 1 -sqlprep {
+     PRAGMA page_size = 512;
+     PRAGMA auto_vacuum = incremental;
+     CREATE TABLE t1(x);
+     INSERT INTO t1 VALUES( randomblob(1   * (512-4)) );
+     INSERT INTO t1 VALUES( randomblob(110 * (512-4)) );
+     INSERT INTO t1 VALUES( randomblob(2   * (512-4)) );
+     INSERT INTO t1 VALUES( randomblob(110 * (512-4)) );
+     INSERT INTO t1 VALUES( randomblob(3 * (512-4)) );
+     DELETE FROM t1 WHERE rowid = 3;
+     PRAGMA incremental_vacuum = 2;
+     DELETE FROM t1 WHERE rowid = 1;
+  } -sqlbody {
+     PRAGMA incremental_vacuum = 1;
+  }
+}
+
+# Usually, after a new page is allocated from the end of the file, it does
+# not need to be written to the journal. The exception is when the new page
+# shares its sector with an existing page that does need to be journalled.
+# This test case provokes this condition to test for the sake of coverage
+# that an IO error while journalling the coresident page is handled correctly.
+#
+sqlite3_simulate_device -char {} -sectorsize 2048
+do_ioerr_test ioerr-12 -ckrefcount true -erc 1 -tclprep {
+  db close
+  sqlite3 db test.db -vfs devsym
+
+  # Create a test database. Page 2 is the root page of table t1. The only
+  # row inserted into t1 has an overflow page - page 3. Page 3 will be
+  # coresident on the 2048 byte sector with the next page to be allocated.
+  # 
+  db eval { PRAGMA page_size = 1024 }
+  db eval { CREATE TABLE t1(x) }
+  db eval { INSERT INTO t1 VALUES(randomblob(1100)); }
+} -tclbody {
+  db eval { INSERT INTO t1 VALUES(randomblob(2000)); }
+}
+sqlite3_simulate_device -char {} -sectorsize 0
+catch {db close}
+unregister_devsim
+
+do_ioerr_test ioerr-13 -ckrefcount true -erc 1 -sqlprep {
+  PRAGMA auto_vacuum = incremental;
+  CREATE TABLE t1(x);
+  CREATE TABLE t2(x);
+  INSERT INTO t2 VALUES(randomblob(1500));
+  INSERT INTO t2 SELECT randomblob(1500) FROM t2;
+  INSERT INTO t2 SELECT randomblob(1500) FROM t2;
+  INSERT INTO t2 SELECT randomblob(1500) FROM t2;
+  INSERT INTO t2 SELECT randomblob(1500) FROM t2;
+  INSERT INTO t2 SELECT randomblob(1500) FROM t2;
+  INSERT INTO t2 SELECT randomblob(1500) FROM t2;
+  INSERT INTO t2 SELECT randomblob(1500) FROM t2;
+  INSERT INTO t2 SELECT randomblob(1500) FROM t2;
+  INSERT INTO t1 VALUES(randomblob(20));
+  INSERT INTO t1 SELECT x FROM t1;
+  INSERT INTO t1 SELECT x FROM t1;
+  INSERT INTO t1 SELECT x FROM t1;
+  INSERT INTO t1 SELECT x FROM t1;
+  INSERT INTO t1 SELECT x FROM t1;
+  INSERT INTO t1 SELECT x FROM t1;             /* 64 entries in t1 */
+  INSERT INTO t1 SELECT x FROM t1 LIMIT 14;    /* 78 entries in t1 */
+  DELETE FROM t2 WHERE rowid = 3;
+} -sqlbody {
+  -- This statement uses the balance_quick() optimization. The new page
+  -- is appended to the database file. But the overflow page used by
+  -- the new record will be positioned near the start of the database
+  -- file, in the gap left by the "DELETE FROM t2 WHERE rowid=3" statement
+  -- above.
+  --
+  -- The point of this is that the statement wil need to update two pointer
+  -- map pages. Which introduces another opportunity for an IO error.
+  --
+  INSERT INTO t1 VALUES(randomblob(2000));
+}
+
+do_ioerr_test ioerr-14 -ckrefcount true -erc 1 -sqlprep {
+  PRAGMA auto_vacuum = incremental;
+  CREATE TABLE t1(x);
+  CREATE TABLE t2(x);
+  INSERT INTO t2 VALUES(randomblob(1500));
+  INSERT INTO t2 SELECT randomblob(1500) FROM t2;
+  INSERT INTO t2 SELECT randomblob(1500) FROM t2;
+  INSERT INTO t2 SELECT randomblob(1500) FROM t2;
+  INSERT INTO t2 SELECT randomblob(1500) FROM t2;
+  INSERT INTO t2 SELECT randomblob(1500) FROM t2;
+  INSERT INTO t2 SELECT randomblob(1500) FROM t2;
+  INSERT INTO t2 SELECT randomblob(1500) FROM t2;
+  INSERT INTO t2 SELECT randomblob(1500) FROM t2;
+
+  -- This statement inserts a row into t1 with an overflow page at the
+  -- end of the file. A long way from its parent (the root of t1).
+  INSERT INTO t1 VALUES(randomblob(1500));
+  DELETE FROM t2 WHERE rowid<10;
+} -sqlbody {
+  -- This transaction will cause the root-page of table t1 to divide
+  -- (by calling balance_deeper()). When it does, the "parent" page of the
+  -- overflow page inserted in the -sqlprep block above will change and
+  -- the corresponding pointer map page be updated. This test case attempts
+  -- to cause an IO error during the pointer map page update.
+  --
+  BEGIN;
+  INSERT INTO t1 VALUES(randomblob(100));
+  INSERT INTO t1 VALUES(randomblob(100));
+  INSERT INTO t1 VALUES(randomblob(100));
+  INSERT INTO t1 VALUES(randomblob(100));
+  INSERT INTO t1 VALUES(randomblob(100));
+  INSERT INTO t1 VALUES(randomblob(100));
+  INSERT INTO t1 VALUES(randomblob(100));
+  INSERT INTO t1 VALUES(randomblob(100));
+  INSERT INTO t1 VALUES(randomblob(100));
+  INSERT INTO t1 VALUES(randomblob(100));
+  COMMIT;
+}
+
+do_ioerr_test ioerr-15 -tclprep {
+  db eval {
+    BEGIN;
+    PRAGMA cache_size = 10;
+    CREATE TABLE t1(a);
+    CREATE INDEX i1 ON t1(a);
+    CREATE TABLE t2(a);
+  }
+  for {set ii 1} {$ii < 100} {incr ii} {
+    set v [string range [string repeat [format %.3d $ii] 200] 0 220]
+    db eval {INSERT INTO t1 VALUES($v)}
+  }
+  db eval {
+    DELETE FROM t1 WHERE oid > 85;
+    COMMIT;
+  }
+} -sqlbody {
+  BEGIN;
+  INSERT INTO t2 VALUES(randstr(22000,22000));
+  DELETE FROM t1 WHERE oid = 83;
+  COMMIT;
+} 
+
+# This test verifies that IO errors that occur within the obscure branch
+# of code executed by tkt3762.test are correctly reported.
+#
+ifcapable vacuum&&autovacuum&&pragma {
+  do_ioerr_test ioerr-16 -erc 1 -ckrefcount 1 -sqlprep {
+    PRAGMA auto_vacuum=INCREMENTAL;
+    PRAGMA page_size=1024;
+    BEGIN;
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(zeroblob(900));
+    INSERT INTO t1 VALUES(zeroblob(900));
+    INSERT INTO t1 SELECT x FROM t1;
+    INSERT INTO t1 SELECT x FROM t1;
+    INSERT INTO t1 SELECT x FROM t1;
+    INSERT INTO t1 SELECT x FROM t1;
+    INSERT INTO t1 SELECT x FROM t1;
+    INSERT INTO t1 SELECT x FROM t1;
+    INSERT INTO t1 SELECT x FROM t1;
+    DELETE FROM t1 WHERE rowid>202;
+    COMMIT;
+    VACUUM;
+    PRAGMA cache_size = 10;
+    BEGIN;
+    DELETE FROM t1 WHERE rowid IN (10,11,12) ;
+  } -sqlbody {
+    PRAGMA incremental_vacuum(10);
+    COMMIT;
+  }
+}
+
+finish_test
diff --git a/test/ioerr2.test b/test/ioerr2.test
new file mode 100644
index 0000000000000000000000000000000000000000..c08c3453f3077fd543dd7a0bc179c19777cbc0f8
--- /dev/null
+++ b/test/ioerr2.test
@@ -0,0 +1,176 @@
+# 2007 April 2
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing for correct handling of I/O errors
+# such as writes failing because the disk is full.
+# 
+# The tests in this file use special facilities that are only
+# available in the SQLite test fixture.
+#
+# $Id: ioerr2.test,v 1.12 2009/06/05 17:09:12 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !integrityck {
+  finish_test
+  return
+}
+
+do_test ioerr2-1.1 {
+  execsql {
+    PRAGMA cache_size = 10;
+    PRAGMA default_cache_size = 10;
+    CREATE TABLE t1(a, b, PRIMARY KEY(a, b));
+    INSERT INTO t1 VALUES(randstr(400,400),randstr(400,400));
+    INSERT INTO t1 SELECT randstr(400,400), randstr(400,400) FROM t1; -- 2
+    INSERT INTO t1 SELECT randstr(400,400), randstr(400,400) FROM t1; -- 4
+    INSERT INTO t1 SELECT randstr(400,400), randstr(400,400) FROM t1; -- 8
+    INSERT INTO t1 SELECT randstr(400,400), randstr(400,400) FROM t1; -- 16
+    INSERT INTO t1 SELECT randstr(400,400), randstr(400,400) FROM t1; -- 32
+  }
+} {}
+
+set ::cksum [execsql {SELECT md5sum(a, b) FROM t1}]
+proc check_db {testname} {
+
+  # Make sure no I/O errors are simulated in this proc.
+  set ::sqlite_io_error_hit 0
+  set ::sqlite_io_error_persist 0
+  set ::sqlite_io_error_pending 0
+
+  # Run an integrity-check. If "disk I/O error" is returned, the
+  # pager must be in error state. In this case open a new database
+  # connection. Otherwise, try a ROLLBACK, in case a transaction 
+  # is still active.
+  set rc [catch {execsql {PRAGMA integrity_check}} msg]
+  if {$rc && ($msg eq "disk I/O error" || $msg eq "database is locked")} {
+    db close
+    sqlite3 db test.db
+    set refcnt 0
+  } else {
+    if {$rc || $msg ne "ok"} {
+      error $msg
+    }
+    catch {execsql ROLLBACK}
+  }
+
+  # Check that the database checksum is still $::cksum, and that
+  # the integrity-check passes.
+  set ck [execsql {SELECT md5sum(a, b) FROM t1}]
+  do_test ${testname}.cksum [list set ck $ck] $::cksum
+  integrity_check ${testname}.integrity
+  do_test ${testname}.refcnt {
+    lindex [sqlite3_pager_refcounts db] 0
+  } 0
+}
+
+check_db ioerr2-2
+
+set sql {
+  PRAGMA cache_size = 10;
+  PRAGMA default_cache_size = 10;
+  BEGIN;
+  DELETE FROM t1 WHERE (oid%7)==0;
+  INSERT INTO t1 SELECT randstr(400,400), randstr(400,400) 
+    WHERE (random()%7)==0;
+  UPDATE t1 SET a = randstr(400,400), b = randstr(400,400) 
+    WHERE (random()%7)==0;
+  ROLLBACK;
+}
+
+foreach bPersist [list 0 1] {
+  set ::go 1
+  for {set ::N 1} {$::go} {incr ::N} {
+    db close
+    sqlite3 db test.db
+    set ::sqlite_io_error_hit 0
+    set ::sqlite_io_error_persist $bPersist
+    set ::sqlite_io_error_pending $::N
+
+    foreach {::go res} [catchsql $sql] {}
+    check_db ioerr2-3.$bPersist.$::N
+  }
+}
+foreach bPersist [list 0 1] {
+  set ::go 1
+  for {set ::N 1} {$::go} {incr ::N} {
+    set ::sqlite_io_error_hit 0
+    set ::sqlite_io_error_persist $bPersist
+    set ::sqlite_io_error_pending $::N
+
+    foreach {::go res} [catchsql $sql] {}
+    check_db ioerr2-4.[expr {$bPersist+2}].$::N
+  }
+}
+
+# When this test was written, an IO error within the UPDATE statement caused
+# a rollback, which tripped all read-cursors, causing the outer SELECT to
+# fail with "abort due to ROLLBACK". Now, the loop continues until the UPDATE
+# is run successfully. At this point the next IO error occurs within the 
+# SELECT - throwing the "disk I/O error" that the test case now expects.
+#
+do_test ioerr2-5 {
+  execsql {
+    CREATE TABLE t2 AS SELECT * FROM t1;
+    PRAGMA temp_store = memory;
+  }
+  set ::sqlite_io_error_persist 0
+  set ::go 1
+  set rc [catch {
+    for {set ::N 2} {$::N<200} {incr ::N} {
+      db eval {SELECT * FROM t1 WHERE rowid IN (1, 5, 10, 15, 20)} {
+        set ::sqlite_io_error_hit 0
+        set ::sqlite_io_error_pending $::N
+        set sql {UPDATE t2 SET b = randstr(400,400)}
+        foreach {::go res} [catchsql $sql] {}
+      }
+    }
+  } msg]
+  list $rc $msg
+} {1 {disk I/O error}} ;# used to be "{1 {abort due to ROLLBACK}}"
+
+if {$::tcl_platform(platform) == "unix"} {
+  # Cause the call to xAccess used by [pragma temp_store_directory] to
+  # determine if the specified directory is writable to fail. This causes
+  # SQLite to report "not a writable directory", which is probably the
+  # right answer.
+  #
+  do_test ioerr2-6 {
+    set ::sqlite_io_error_hit 0
+    set ::sqlite_io_error_pending 1
+    catchsql {PRAGMA temp_store_directory = '/tmp/'}
+  } {1 {not a writable directory}}
+}
+
+do_ioerr_test ioerr2-7 -persist 0 -sqlprep {
+  PRAGMA cache_size = 10;
+  PRAGMA auto_vacuum = 1;
+  CREATE TABLE ab(a, b);
+  CREATE TABLE de(d, e);
+  INSERT INTO ab VALUES(1, randstr(200,200));
+  INSERT INTO ab SELECT a+1, randstr(200,200) FROM ab;
+  INSERT INTO ab SELECT a+2, randstr(200,200) FROM ab;
+  INSERT INTO ab SELECT a+4, randstr(200,200) FROM ab;
+  INSERT INTO ab SELECT a+8, randstr(200,200) FROM ab;
+  INSERT INTO ab SELECT a+16, randstr(200,200) FROM ab;
+  INSERT INTO ab SELECT a+32, randstr(200,200) FROM ab;
+  INSERT INTO ab SELECT a+64, randstr(200,200) FROM ab;
+  INSERT INTO de SELECT * FROM ab;
+} -sqlbody {
+  BEGIN;
+  UPDATE ab SET b = randstr(200,200);
+  UPDATE de SET e = randstr(200,200) WHERE d = (SELECT max(d) FROM de);
+  DELETE FROM ab;
+  COMMIT;
+}
+
+finish_test
diff --git a/test/ioerr3.test b/test/ioerr3.test
new file mode 100644
index 0000000000000000000000000000000000000000..4598cbffe9754515e93ed0595b55fed8eeb7d64d
--- /dev/null
+++ b/test/ioerr3.test
@@ -0,0 +1,42 @@
+# 2007 December 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing for correct handling of I/O errors
+# in conjunction with very small soft-heap-limit values.
+#
+# $Id: ioerr3.test,v 1.2 2008/01/19 23:50:26 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_ioerr_test ioerr3-1 -sqlprep {
+  CREATE TABLE t1(id INTEGER, name TEXT);
+} -tclbody {
+  sqlite3_soft_heap_limit 8192
+  db cache size 0
+  execsql BEGIN
+  for {set ii 0} {$ii < 100} {incr ii} {
+    execsql {
+      INSERT INTO t1(id, name) VALUES (1,
+'A1234567890B1234567890C1234567890D1234567890E1234567890F1234567890G1234567890H1234567890I1234567890J1234567890K1234567890L1234567890M1234567890N1234567890O1234567890P1234567890Q1234567890R1234567890'
+      );
+    }
+  }
+  execsql COMMIT
+}
+
+do_ioerr_test ioerr3-2 -sqlbody {
+  CREATE TEMP TABLE t1(x,y);
+}
+
+sqlite3_soft_heap_limit 0
+
+finish_test
diff --git a/test/ioerr4.test b/test/ioerr4.test
new file mode 100644
index 0000000000000000000000000000000000000000..defa32686878d932a790b4cc945661dcfde5cc05
--- /dev/null
+++ b/test/ioerr4.test
@@ -0,0 +1,100 @@
+# 2007 December 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing for correct handling of I/O errors
+# during incremental vacuum with a shared cache.
+#
+# $Id: ioerr4.test,v 1.2 2008/05/08 01:11:42 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# This test requires both shared cache and incremental vacuum.
+#
+ifcapable {!shared_cache || !autovacuum} {
+  finish_test
+  return
+}
+
+# Enable shared cache mode and incremental vacuum.
+#
+do_test ioerr4-1.1 {
+  db close
+  set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
+} {0}
+do_test ioerr4-1.2 {
+  forcedelete test.db test.db-journal
+  sqlite3 db test.db
+  sqlite3 db2 test.db
+  db eval {
+    PRAGMA auto_vacuum=INCREMENTAL;
+    CREATE TABLE a(i INTEGER, b BLOB);
+  }
+  db2 eval {
+    SELECT name FROM sqlite_master
+  }
+} {a}
+do_test ioerr4-1.3 {
+  db eval {
+    PRAGMA auto_vacuum;
+  }
+} {2}
+
+# Insert and delete many records in order to put lots of pages
+# on the freelist.
+#
+do_test ioerr4-1.4 {
+  db eval {
+    INSERT INTO a VALUES(1, zeroblob(2000));
+    INSERT INTO a VALUES(2, zeroblob(2000));
+    INSERT INTO a SELECT i+2, zeroblob(2000) FROM a;
+    INSERT INTO a SELECT i+4, zeroblob(2000) FROM a;
+    INSERT INTO a SELECT i+8, zeroblob(2000) FROM a;
+    INSERT INTO a SELECT i+16, zeroblob(2000) FROM a;
+    SELECT count(*) FROM a;
+  }
+} {32}
+do_test ioerr4-1.5 {
+  db eval {
+    PRAGMA freelist_count
+  }
+} {0}
+do_test ioerr4-1.6 {
+  db eval {
+    DELETE FROM a;
+    PRAGMA freelist_count;
+  }
+} {64}
+
+# Set up for an I/O error on incremental vacuum
+# with two connections on shared cache.
+#
+db close
+db2 close
+forcecopy test.db test.db-bu
+do_ioerr_test ioerr4-2 -tclprep {
+  catch {db2 close}
+  db close
+  forcedelete test.db test.db-journal
+  forcecopy test.db-bu test.db
+  sqlite3_enable_shared_cache 1
+  set ::DB [sqlite3 db test.db; sqlite3_connection_pointer db]
+  db eval {PRAGMA auto_vacuum=INCREMENTAL}
+  sqlite3 db2 test.db
+} -tclbody {
+  db eval {PRAGMA incremental_vacuum(5)}
+}
+
+db2 close
+forcedelete test.db-bu
+sqlite3_enable_shared_cache $::enable_shared_cache
+
+finish_test
diff --git a/test/ioerr5.test b/test/ioerr5.test
new file mode 100644
index 0000000000000000000000000000000000000000..a0a74bd9532f4eab5e738c6288c509f775ea9343
--- /dev/null
+++ b/test/ioerr5.test
@@ -0,0 +1,216 @@
+# 2008 May 12
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file tests that if sqlite3_release_memory() is called to reclaim
+# memory from a pager that is in the error-state, SQLite does not 
+# incorrectly write dirty pages out to the database (not safe to do
+# once the pager is in error state).
+#
+# $Id: ioerr5.test,v 1.5 2008/08/28 18:35:34 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !memorymanage||!shared_cache {
+  finish_test
+  return
+}
+
+db close
+
+set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
+set ::soft_limit [sqlite3_soft_heap_limit 1048576]
+
+# This procedure prepares, steps and finalizes an SQL statement via the
+# UTF-16 APIs. The text representation of an SQLite error code is returned
+# ("SQLITE_OK", "SQLITE_IOERR" etc.). The actual results returned by the
+# SQL statement, if it is a SELECT, are not available.
+#
+# This can be useful for testing because it forces SQLite to make an extra 
+# call to sqlite3_malloc() when translating from the supplied UTF-16 to
+# the UTF-8 encoding used internally.
+#
+proc dosql16 {zSql {db db}} {
+  set sql [encoding convertto unicode $zSql]
+  append sql "\00\00"
+  set stmt [sqlite3_prepare16 $db $sql -1 {}]
+  sqlite3_step $stmt
+  set rc [sqlite3_finalize $stmt]
+}
+
+proc compilesql16 {zSql {db db}} {
+  set sql [encoding convertto unicode $zSql]
+  append sql "\00\00"
+  set stmt [sqlite3_prepare16 $db $sql -1 {}]
+  set rc [sqlite3_finalize $stmt]
+}
+
+# Open two database connections (handle db and db2) to database "test.db".
+#
+proc opendatabases {} {
+  catch {db close}
+  catch {db2 close}
+  sqlite3 db test.db
+  sqlite3 db2 test.db
+  db2 cache size 0
+  db cache size 0
+  execsql {
+    pragma page_size=512;
+    pragma auto_vacuum=2;
+    pragma cache_size=16;
+  }
+}
+
+# Open two database connections and create a single table in the db.
+#
+do_test ioerr5-1.0 {
+  opendatabases
+  execsql { CREATE TABLE A(Id INTEGER, Name TEXT) }
+} {}
+
+foreach locking_mode {normal exclusive} {
+  set nPage 2
+  for {set iFail 1} {$iFail<200} {incr iFail} {
+    sqlite3_soft_heap_limit 1048576
+    opendatabases
+    execsql { pragma locking_mode=exclusive }
+    set nRow [db one {SELECT count(*) FROM a}]
+  
+    # Dirty (at least) one of the pages in the cache.
+    do_test ioerr5-1.$locking_mode-$iFail.1 {
+      execsql {
+        BEGIN EXCLUSIVE;
+        INSERT INTO a VALUES(1, 'ABCDEFGHIJKLMNOP');
+      }
+    } {}
+
+    # Open a read-only cursor on table "a". If the COMMIT below is
+    # interrupted by a persistent IO error, the pager will transition to 
+    # PAGER_ERROR state. If there are no other read-only cursors open,
+    # from there the pager immediately discards all cached data and 
+    # switches to PAGER_OPEN state. This read-only cursor stops that
+    # from happening, leaving the pager stuck in PAGER_ERROR state.
+    #
+    set channel [db incrblob -readonly a Name [db last_insert_rowid]]
+  
+    # Now try to commit the transaction. Cause an IO error to occur
+    # within this operation, which moves the pager into the error state.
+    #
+    set ::sqlite_io_error_persist 1
+    set ::sqlite_io_error_pending $iFail
+    do_test ioerr5-1.$locking_mode-$iFail.2 {
+      set rc [catchsql {COMMIT}]
+      list
+    } {}
+    set ::sqlite_io_error_hit 0
+    set ::sqlite_io_error_persist 0
+    set ::sqlite_io_error_pending 0
+  
+    # Read the contents of the database file into a Tcl variable.
+    #
+    set fd [open test.db]
+    fconfigure $fd -translation binary
+    set zDatabase [read $fd]
+    close $fd
+
+    # Set a very low soft-limit and then try to compile an SQL statement 
+    # from UTF-16 text. To do this, SQLite will need to reclaim memory
+    # from the pager that is in error state. Including that associated
+    # with the dirty page.
+    #
+    do_test ioerr5-1.$locking_mode-$iFail.3 {
+      sqlite3_soft_heap_limit 1024
+      compilesql16 "SELECT 10"
+    } {SQLITE_OK}
+
+    close $channel
+
+    # Ensure that nothing was written to the database while reclaiming
+    # memory from the pager in error state.
+    #
+    do_test ioerr5-1.$locking_mode-$iFail.4 {
+      set fd [open test.db]
+      fconfigure $fd -translation binary
+      set zDatabase2 [read $fd]
+      close $fd
+      expr {$zDatabase eq $zDatabase2}
+    } {1}
+
+    if {$rc eq [list 0 {}]} {
+      do_test ioerr5.1-$locking_mode-$iFail.3 {
+        execsql { SELECT count(*) FROM a }
+      } [expr $nRow+1]
+      break
+    }
+  }
+}
+
+# Make sure this test script doesn't leave any files open.
+#
+do_test ioerr5-1.X {
+  catch { db close }
+  catch { db2 close }
+  set sqlite_open_file_count
+} 0
+
+do_test ioerr5-2.0 {
+  sqlite3 db test.db
+  execsql { CREATE INDEX i1 ON a(id, name); }
+} {}
+
+foreach locking_mode {exclusive normal} {
+  for {set iFail 1} {$iFail<200} {incr iFail} {
+    sqlite3_soft_heap_limit 1048576
+    opendatabases
+    execsql { pragma locking_mode=exclusive }
+    set nRow [db one {SELECT count(*) FROM a}]
+  
+    do_test ioerr5-2.$locking_mode-$iFail.1 {
+      execsql {
+        BEGIN EXCLUSIVE;
+        INSERT INTO a VALUES(1, 'ABCDEFGHIJKLMNOP');
+      }
+    } {}
+
+    set ::sqlite_io_error_persist 1
+    set ::sqlite_io_error_pending $iFail
+
+    sqlite3_release_memory 10000
+
+    set error_hit $::sqlite_io_error_hit
+    set ::sqlite_io_error_hit 0
+    set ::sqlite_io_error_persist 0
+    set ::sqlite_io_error_pending 0
+    if {$error_hit} {
+      do_test ioerr5-2.$locking_mode-$iFail.3a {
+        catchsql COMMIT
+      } {1 {disk I/O error}}
+    } else {
+      do_test ioerr5-2.$locking_mode-$iFail.3b {
+        execsql COMMIT
+      } {}
+      break
+    }
+  }
+}
+
+# Make sure this test script doesn't leave any files open.
+#
+do_test ioerr5-2.X {
+  catch { db close }
+  catch { db2 close }
+  set sqlite_open_file_count
+} 0
+
+sqlite3_enable_shared_cache $::enable_shared_cache
+sqlite3_soft_heap_limit $::soft_limit
+
+finish_test
diff --git a/test/ioerr6.test b/test/ioerr6.test
new file mode 100644
index 0000000000000000000000000000000000000000..d1847b2877b71e439be717d2987b3e332795b3b9
--- /dev/null
+++ b/test/ioerr6.test
@@ -0,0 +1,91 @@
+# 2012 December 18
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+set ::testprefix ioerr6
+
+ifcapable !atomicwrite {
+  puts "skipping tests - not compiled with SQLITE_ENABLE_ATOMIC_WRITE..."
+  finish_test
+  return
+}
+
+if {[permutation]=="inmemory_journal"} {
+  # These tests will not work with in-memory journals (as persistent VFS
+  # errors commencing after a transaction has started to write to the db
+  # cannot be recovered from).
+  finish_test
+  return
+}
+
+faultsim_save_and_close
+
+do_test 1.1 {
+  testvfs shmfault -default true
+  shmfault devchar atomic
+  sqlite3 db test.db
+  execsql {
+    CREATE TABLE t1(a, b);
+    CREATE INDEX i1 ON t1(a, b);
+    INSERT INTO t1 VALUES(1, 2);
+    INSERT INTO t1 VALUES(2, 4);
+    INSERT INTO t1 VALUES(3, 6);
+    INSERT INTO t1 VALUES(4, 8);
+  }
+
+  # Cause the first call to xWrite() to fail with SQLITE_FULL.
+  shmfault full 2 1
+  catchsql { INSERT INTO t1 VALUES(5, 10) }
+} {1 {database or disk is full}}
+
+do_test 1.2 {
+  execsql { PRAGMA integrity_check }
+} {ok}
+
+db close
+shmfault delete
+
+do_faultsim_test 2 -faults full* -prep {
+  shmfault devchar atomic
+  faultsim_restore
+  sqlite3 db test.db
+} -body {
+  db eval {
+    CREATE TABLE t1(x PRIMARY KEY);
+    INSERT INTO t1 VALUES('abc');
+  }
+} -test {
+  set res [db one { PRAGMA integrity_check }]
+  if {$res != "ok"} {
+    error "integrity check: $res"
+  }
+}
+
+do_faultsim_test 3 -faults full* -prep {
+  shmfault devchar atomic
+  faultsim_restore
+  sqlite3 db test.db
+} -body {
+  db eval {
+    CREATE TABLE t1(x);
+    CREATE TABLE t2(x);
+  }
+} -test {
+  db eval { CREATE TABLE t3(x) }
+  if {[db one { PRAGMA integrity_check }] != "ok"} {
+    error "integrity check failed"
+  }
+}
+
+finish_test
diff --git a/test/istrue.test b/test/istrue.test
new file mode 100644
index 0000000000000000000000000000000000000000..f1ba63248fded357e9e2f6182936d3c3c5824758
--- /dev/null
+++ b/test/istrue.test
@@ -0,0 +1,206 @@
+# 2018-02-26
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing expressions of the form
+#
+#        x IS TRUE
+#        x IS FALSE
+#        x IS NOT TRUE
+#        x IS NOT FALSE
+#
+# Tests are also included for the use of TRUE and FALSE as
+# literal values.
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_execsql_test istrue-100 {
+  CREATE TABLE t1(x INTEGER PRIMARY KEY, y BOOLEAN);
+  INSERT INTO t1 VALUES(1, true),(2, false),(3, null);
+  SELECT x FROM t1 WHERE y IS TRUE;
+} {1}
+do_execsql_test istrue-110 {
+  SELECT x FROM t1 WHERE y IS FALSE;
+} {2}
+do_execsql_test istrue-120 {
+  SELECT x FROM t1 WHERE y IS NULL;
+} {3}
+do_execsql_test istrue-130 {
+  SELECT x FROM t1 WHERE y IS NOT TRUE;
+} {2 3}
+do_execsql_test istrue-140 {
+  SELECT x FROM t1 WHERE y IS NOT FALSE;
+} {1 3}
+do_execsql_test istrue-150 {
+  SELECT x FROM t1 WHERE y IS NOT NULL;
+} {1 2}
+unset -nocomplain X
+set X 9
+do_execsql_test istrue-160 {
+  SELECT x FROM t1 WHERE y IS TRUE OR (8==$X)
+} {1}
+do_execsql_test istrue-170 {
+  SELECT x FROM t1 WHERE y IS FALSE OR (8==$X)
+} {2}
+do_execsql_test istrue-180 {
+  SELECT x FROM t1 WHERE y IS NULL OR (8==$X);
+} {3}
+do_execsql_test istrue-190 {
+  SELECT x FROM t1 WHERE y IS NOT TRUE OR (8==$X);
+} {2 3}
+do_execsql_test istrue-200 {
+  SELECT x FROM t1 WHERE y IS NOT FALSE OR (8==$X);
+} {1 3}
+do_execsql_test istrue-210 {
+  SELECT x FROM t1 WHERE y IS NOT NULL OR (8==$X);
+} {1 2}
+
+do_execsql_test istrue-300 {
+  SELECT x,
+         y IS TRUE, y IS FALSE, y is NULL,
+         y IS NOT TRUE, y IS NOT FALSE, y IS NOT NULL, '|'
+    FROM t1 ORDER BY x;
+} {1 1 0 0 0 1 1 | 2 0 1 0 1 0 1 | 3 0 0 1 1 1 0 |}
+
+do_execsql_test istrue-400 {
+  SELECT x FROM t1 WHERE true;
+} {1 2 3}
+do_execsql_test istrue-410 {
+  SELECT x FROM t1 WHERE false;
+} {}
+
+do_execsql_test istrue-500 {
+  CREATE TABLE t2(
+     a INTEGER PRIMARY KEY,
+     b BOOLEAN DEFAULT true,
+     c BOOLEAN DEFAULT(true),
+     d BOOLEAN DEFAULT false,
+     e BOOLEAN DEFAULT(false)
+  );
+  INSERT INTO t2 DEFAULT VALUES;
+  SELECT * FROM t2;
+} {1 1 1 0 0}
+do_execsql_test istrue-510 {
+  DROP TABLE t2;
+  CREATE TABLE t2(
+     a INTEGER PRIMARY KEY,
+     b BOOLEAN DEFAULT(not true),
+     c BOOLEAN DEFAULT(not false)
+  );
+  INSERT INTO t2(a) VALUES(99);
+  SELECT * FROM t2;
+} {99 0 1}
+do_execsql_test istrue-520 {
+  DROP TABLE t2;
+  CREATE TABLE t2(
+     a INTEGER PRIMARY KEY,
+     b BOOLEAN CHECK(b IS TRUE),
+     c BOOLEAN CHECK(c IS FALSE),
+     d BOOLEAN CHECK(d IS NOT TRUE),
+     e BOOLEAN CHECK(e IS NOT FALSE)
+  );
+  INSERT INTO t2 VALUES(1,true,false,null,null);
+  SELECT * FROM t2;
+} {1 1 0 {} {}}
+do_catchsql_test istrue-521 {
+  INSERT INTO t2 VALUES(2,false,false,null,null);
+} {1 {CHECK constraint failed: b IS TRUE}}
+do_catchsql_test istrue-522 {
+  INSERT INTO t2 VALUES(2,true,true,null,null);
+} {1 {CHECK constraint failed: c IS FALSE}}
+do_catchsql_test istrue-523 {
+  INSERT INTO t2 VALUES(2,true,false,true,null);
+} {1 {CHECK constraint failed: d IS NOT TRUE}}
+do_catchsql_test istrue-524 {
+  INSERT INTO t2 VALUES(2,true,false,null,false);
+} {1 {CHECK constraint failed: e IS NOT FALSE}}
+
+foreach {tn val} [list 1 NaN 2 -NaN 3 NaN0 4 -NaN0 5 Inf 6 -Inf] {
+  do_execsql_test istrue-600.$tn.1 {
+    DROP TABLE IF EXISTS t1;
+    CREATE TABLE t1(x);
+  }
+  do_test istrue-600.$tn.2 {
+    set ::STMT [sqlite3_prepare db "INSERT INTO t1 VALUES(?)" -1 TAIL]
+    sqlite3_bind_double $::STMT 1 $val
+    sqlite3_step $::STMT
+    sqlite3_reset $::STMT
+    sqlite3_finalize $::STMT
+  } {SQLITE_OK}
+  do_execsql_test istrue-600.$tn.3 {
+    SELECT x IS TRUE FROM t1;
+  } [expr {$tn in [list 5 6] ? {1} : {0}}]
+  do_execsql_test istrue-600.$tn.4 {
+    SELECT x IS FALSE FROM t1;
+  } {0}
+}
+
+ifcapable altertable {
+  do_execsql_test istrue-700 {
+    CREATE TABLE t7(
+      a INTEGER PRIMARY KEY,
+      b BOOLEAN DEFAULT false,
+      c BOOLEAN DEFAULT true
+    );
+    INSERT INTO t7(a) VALUES(1);
+    INSERT INTO t7(a,b,c) VALUES(2,true,false);
+    ALTER TABLE t7 ADD COLUMN d BOOLEAN DEFAULT false;
+    ALTER TABLE t7 ADD COLUMN e BOOLEAN DEFAULT true;
+    INSERT INTO t7(a,b,c) VALUES(3,true,false);
+    INSERT INTO t7 VALUES(4,false,true,true,false);
+    SELECT *,'x' FROM t7 ORDER BY a;
+  } {1 0 1 0 1 x 2 1 0 0 1 x 3 1 0 0 1 x 4 0 1 1 0 x}
+}
+
+do_execsql_test istrue-710 {
+  SELECT 0.5 IS TRUE COLLATE NOCASE;
+  SELECT 0.5 IS TRUE COLLATE RTRIM;
+  SELECT 0.5 IS TRUE COLLATE BINARY;
+
+  SELECT 0.5 IS TRUE;
+  SELECT 0.5 COLLATE NOCASE IS TRUE;
+  SELECT 0.0 IS FALSE;
+
+  SELECT 0.0 IS FALSE COLLATE NOCASE;
+  SELECT 0.0 IS FALSE COLLATE RTRIM;
+  SELECT 0.0 IS FALSE COLLATE BINARY;
+} {1 1 1   1 1 1  1 1 1}
+
+# 2020-06-12 bug report from Chromium
+# https://bugs.chromium.org/p/chromium/issues/detail?id=1094247
+do_catchsql_test istrue-800 {
+  SELECT 9 IN (false.false);
+} {1 {no such column: false.false}}
+do_execsql_test istrue-810 {
+  CREATE TABLE t8(a INT, true INT, false INT, d INT);
+  INSERT INTO t8(a,true,false,d) VALUES(5,6,7,8),(4,3,2,1),('a','b','c','d');
+  SELECT * FROM t8 ORDER BY false;
+} {4 3 2 1 5 6 7 8 a b c d}
+do_catchsql_test istrue-820 {
+  SELECT 9 IN (false.false) FROM t8;
+} {1 {no such column: false.false}}
+do_execsql_test istrue-830 {
+  CREATE TABLE false(true INT, false INT, x INT CHECK (5 IN (false.false)));
+} {}
+do_execsql_test istrue-840 {
+  INSERT INTO False VALUES(4,5,6);
+} {}
+do_catchsql_test istrue-841 {
+  INSERT INTO False VALUES(5,6,7);
+} {1 {CHECK constraint failed: 5 IN (false.false)}}
+do_execsql_test istrue-850 {
+  SELECT 9 IN (false.false) FROM false;
+} {0}
+do_execsql_test istrue-851 {
+  SELECT 5 IN (false.false) FROM false;
+} {1}
+
+finish_test
diff --git a/test/join.test b/test/join.test
new file mode 100644
index 0000000000000000000000000000000000000000..aa526aeb2996ced87091231a557971c2432368c6
--- /dev/null
+++ b/test/join.test
@@ -0,0 +1,1292 @@
+# 2002-05-24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests for joins, including outer joins.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test join-1.1 {
+  execsql {
+    CREATE TABLE t1(a,b,c);
+    INSERT INTO t1 VALUES(1,2,3);
+    INSERT INTO t1 VALUES(2,3,4);
+    INSERT INTO t1 VALUES(3,4,5);
+    SELECT * FROM t1;
+  }  
+} {1 2 3 2 3 4 3 4 5}
+do_test join-1.2 {
+  execsql {
+    CREATE TABLE t2(b,c,d);
+    INSERT INTO t2 VALUES(1,2,3);
+    INSERT INTO t2 VALUES(2,3,4);
+    INSERT INTO t2 VALUES(3,4,5);
+    SELECT * FROM t2;
+  }  
+} {1 2 3 2 3 4 3 4 5}
+
+# A FROM clause of the form:  "<table>, <table> ON <expr>" is not
+# allowed by the SQLite syntax diagram, nor by any other SQL database
+# engine that we are aware of.  Nevertheless, historic versions of
+# SQLite have allowed it.  We need to continue to support it moving
+# forward to prevent breakage of legacy applications.  Though, we will
+# not advertise it as being supported.
+#
+do_execsql_test join-1.2.1 {
+  SELECT t1.rowid, t2.rowid, '|' FROM t1, t2 ON t1.a=t2.b;
+} {1 1 | 2 2 | 3 3 |}
+
+do_test join-1.3 {
+  execsql2 {
+    SELECT * FROM t1 NATURAL JOIN t2;
+  }
+} {a 1 b 2 c 3 d 4 a 2 b 3 c 4 d 5}
+do_test join-1.3.1 {
+  execsql2 {
+    SELECT * FROM t2 NATURAL JOIN t1;
+  }
+} {b 2 c 3 d 4 a 1 b 3 c 4 d 5 a 2}
+do_test join-1.3.2 {
+  execsql2 {
+    SELECT * FROM t2 AS x NATURAL JOIN t1;
+  }
+} {b 2 c 3 d 4 a 1 b 3 c 4 d 5 a 2}
+do_test join-1.3.3 {
+  execsql2 {
+    SELECT * FROM t2 NATURAL JOIN t1 AS y;
+  }
+} {b 2 c 3 d 4 a 1 b 3 c 4 d 5 a 2}
+do_test join-1.3.4 {
+  execsql {
+    SELECT b FROM t1 NATURAL JOIN t2;
+  }
+} {2 3}
+
+# ticket #3522
+do_test join-1.3.5 {
+  execsql2 {
+    SELECT t2.* FROM t2 NATURAL JOIN t1
+  }
+} {b 2 c 3 d 4 b 3 c 4 d 5}
+do_test join-1.3.6 {
+  execsql2 {
+    SELECT xyzzy.* FROM t2 AS xyzzy NATURAL JOIN t1
+  }
+} {b 2 c 3 d 4 b 3 c 4 d 5}
+do_test join-1.3.7 {
+  execsql2 {
+    SELECT t1.* FROM t2 NATURAL JOIN t1
+  }
+} {a 1 b 2 c 3 a 2 b 3 c 4}
+do_test join-1.3.8 {
+  execsql2 {
+    SELECT xyzzy.* FROM t2 NATURAL JOIN t1 AS xyzzy
+  }
+} {a 1 b 2 c 3 a 2 b 3 c 4}
+do_test join-1.3.9 {
+  execsql2 {
+    SELECT aaa.*, bbb.* FROM t2 AS aaa NATURAL JOIN t1 AS bbb
+  }
+} {b 2 c 3 d 4 a 1 b 2 c 3 b 3 c 4 d 5 a 2 b 3 c 4}
+do_test join-1.3.10 {
+  execsql2 {
+    SELECT t1.*, t2.* FROM t2 NATURAL JOIN t1
+  }
+} {a 1 b 2 c 3 b 2 c 3 d 4 a 2 b 3 c 4 b 3 c 4 d 5}
+
+
+do_test join-1.4.1 {
+  execsql2 {
+    SELECT * FROM t1 INNER JOIN t2 USING(b,c);
+  }
+} {a 1 b 2 c 3 d 4 a 2 b 3 c 4 d 5}
+do_test join-1.4.2 {
+  execsql2 {
+    SELECT * FROM t1 AS x INNER JOIN t2 USING(b,c);
+  }
+} {a 1 b 2 c 3 d 4 a 2 b 3 c 4 d 5}
+do_test join-1.4.3 {
+  execsql2 {
+    SELECT * FROM t1 INNER JOIN t2 AS y USING(b,c);
+  }
+} {a 1 b 2 c 3 d 4 a 2 b 3 c 4 d 5}
+do_test join-1.4.4 {
+  execsql2 {
+    SELECT * FROM t1 AS x INNER JOIN t2 AS y USING(b,c);
+  }
+} {a 1 b 2 c 3 d 4 a 2 b 3 c 4 d 5}
+do_test join-1.4.5 {
+  execsql {
+    SELECT b FROM t1 JOIN t2 USING(b);
+  }
+} {2 3}
+
+# Ticket #3522
+do_test join-1.4.6 {
+  execsql2 {
+    SELECT t1.* FROM t1 JOIN t2 USING(b);
+  }
+} {a 1 b 2 c 3 a 2 b 3 c 4}
+do_test join-1.4.7 {
+  execsql2 {
+    SELECT t2.* FROM t1 JOIN t2 USING(b);
+  }
+} {b 2 c 3 d 4 b 3 c 4 d 5}
+
+do_test join-1.5 {
+  execsql2 {
+    SELECT * FROM t1 INNER JOIN t2 USING(b);
+  }
+} {a 1 b 2 c 3 c 3 d 4 a 2 b 3 c 4 c 4 d 5}
+do_test join-1.6 {
+  execsql2 {
+    SELECT * FROM t1 INNER JOIN t2 USING(c);
+  }
+} {a 1 b 2 c 3 b 2 d 4 a 2 b 3 c 4 b 3 d 5}
+do_test join-1.7 {
+  execsql2 {
+    SELECT * FROM t1 INNER JOIN t2 USING(c,b);
+  }
+} {a 1 b 2 c 3 d 4 a 2 b 3 c 4 d 5}
+
+do_test join-1.8 {
+  execsql {
+    SELECT * FROM t1 NATURAL CROSS JOIN t2;
+  }
+} {1 2 3 4 2 3 4 5}
+do_test join-1.9 {
+  execsql {
+    SELECT * FROM t1 CROSS JOIN t2 USING(b,c);
+  }
+} {1 2 3 4 2 3 4 5}
+do_test join-1.10 {
+  execsql {
+    SELECT * FROM t1 NATURAL INNER JOIN t2;
+  }
+} {1 2 3 4 2 3 4 5}
+do_test join-1.11 {
+  execsql {
+    SELECT * FROM t1 INNER JOIN t2 USING(b,c);
+  }
+} {1 2 3 4 2 3 4 5}
+do_test join-1.12 {
+  execsql {
+    SELECT * FROM t1 natural inner join t2;
+  }
+} {1 2 3 4 2 3 4 5}
+
+ifcapable subquery {
+  do_test join-1.13 {
+    execsql2 {
+      SELECT * FROM t1 NATURAL JOIN 
+        (SELECT b as 'c', c as 'd', d as 'e' FROM t2) as t3
+    }
+  } {a 1 b 2 c 3 d 4 e 5}
+  do_test join-1.14 {
+    execsql2 {
+      SELECT * FROM (SELECT b as 'c', c as 'd', d as 'e' FROM t2) as 'tx'
+          NATURAL JOIN t1
+    }
+  } {c 3 d 4 e 5 a 1 b 2}
+}
+
+do_test join-1.15 {
+  execsql {
+    CREATE TABLE t3(c,d,e);
+    INSERT INTO t3 VALUES(2,3,4);
+    INSERT INTO t3 VALUES(3,4,5);
+    INSERT INTO t3 VALUES(4,5,6);
+    SELECT * FROM t3;
+  }  
+} {2 3 4 3 4 5 4 5 6}
+do_test join-1.16 {
+  execsql {
+    SELECT * FROM t1 natural join t2 natural join t3;
+  }
+} {1 2 3 4 5 2 3 4 5 6}
+do_test join-1.17 {
+  execsql2 {
+    SELECT * FROM t1 natural join t2 natural join t3;
+  }
+} {a 1 b 2 c 3 d 4 e 5 a 2 b 3 c 4 d 5 e 6}
+do_test join-1.18 {
+  execsql {
+    CREATE TABLE t4(d,e,f);
+    INSERT INTO t4 VALUES(2,3,4);
+    INSERT INTO t4 VALUES(3,4,5);
+    INSERT INTO t4 VALUES(4,5,6);
+    SELECT * FROM t4;
+  }  
+} {2 3 4 3 4 5 4 5 6}
+do_test join-1.19.1 {
+  execsql {
+    SELECT * FROM t1 natural join t2 natural join t4;
+  }
+} {1 2 3 4 5 6}
+do_test join-1.19.2 {
+  execsql2 {
+    SELECT * FROM t1 natural join t2 natural join t4;
+  }
+} {a 1 b 2 c 3 d 4 e 5 f 6}
+do_test join-1.20 {
+  execsql {
+    SELECT * FROM t1 natural join t2 natural join t3 WHERE t1.a=1
+  }
+} {1 2 3 4 5}
+
+do_test join-2.1 {
+  execsql {
+    SELECT * FROM t1 NATURAL LEFT JOIN t2;
+  }
+} {1 2 3 4 2 3 4 5 3 4 5 {}}
+
+# EVIDENCE-OF: R-52129-05406 you can say things like "OUTER LEFT NATURAL
+# JOIN" which means the same as "NATURAL LEFT OUTER JOIN".
+do_test join-2.1b {
+  execsql {
+    SELECT * FROM t1 OUTER LEFT NATURAL JOIN t2;
+  }
+} {1 2 3 4 2 3 4 5 3 4 5 {}}
+do_test join-2.1c {
+  execsql {
+    SELECT * FROM t1 NATURAL LEFT OUTER JOIN t2;
+  }
+} {1 2 3 4 2 3 4 5 3 4 5 {}}
+
+# ticket #3522
+do_test join-2.1.1 {
+  execsql2 {
+    SELECT * FROM t1 NATURAL LEFT JOIN t2;
+  }
+} {a 1 b 2 c 3 d 4 a 2 b 3 c 4 d 5 a 3 b 4 c 5 d {}}
+do_test join-2.1.2 {
+  execsql2 {
+    SELECT t1.* FROM t1 NATURAL LEFT JOIN t2;
+  }
+} {a 1 b 2 c 3 a 2 b 3 c 4 a 3 b 4 c 5}
+do_test join-2.1.3 {
+  execsql2 {
+    SELECT t2.* FROM t1 NATURAL LEFT JOIN t2;
+  }
+} {b 2 c 3 d 4 b 3 c 4 d 5 b {} c {} d {}}
+
+do_test join-2.2 {
+  execsql {
+    SELECT * FROM t2 NATURAL LEFT OUTER JOIN t1;
+  }
+} {1 2 3 {} 2 3 4 1 3 4 5 2}
+
+#do_test join-2.3 {
+#  catchsql {
+#    SELECT * FROM t1 NATURAL RIGHT OUTER JOIN t2;
+#  }
+#} {1 {RIGHT and FULL OUTER JOINs are not currently supported}}
+
+do_test join-2.4 {
+  execsql {
+    SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.d
+  }
+} {1 2 3 {} {} {} 2 3 4 {} {} {} 3 4 5 1 2 3}
+do_test join-2.5 {
+  execsql {
+    SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.d WHERE t1.a>1
+  }
+} {2 3 4 {} {} {} 3 4 5 1 2 3}
+do_test join-2.6 {
+  execsql {
+    SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.d WHERE t2.b IS NULL OR t2.b>1
+  }
+} {1 2 3 {} {} {} 2 3 4 {} {} {}}
+
+do_test join-3.1 {
+  catchsql {
+    SELECT * FROM t1 NATURAL JOIN t2 ON t1.a=t2.b;
+  }
+} {1 {a NATURAL join may not have an ON or USING clause}}
+do_test join-3.2 {
+  catchsql {
+    SELECT * FROM t1 NATURAL JOIN t2 USING(b);
+  }
+} {1 {a NATURAL join may not have an ON or USING clause}}
+do_test join-3.3 {
+  catchsql {
+    SELECT * FROM t1 JOIN t2 ON t1.a=t2.b USING(b);
+  }
+} {1 {near "USING": syntax error}}
+do_test join-3.4.1 {
+  catchsql {
+    SELECT * FROM t1 JOIN t2 USING(a);
+  }
+} {1 {cannot join using column a - column not present in both tables}}
+do_test join-3.4.2 {
+  catchsql {
+    SELECT * FROM t1 JOIN t2 USING(d);
+  }
+} {1 {cannot join using column d - column not present in both tables}}
+do_test join-3.5 {
+  catchsql { SELECT * FROM t1 USING(a) }
+} {1 {a JOIN clause is required before USING}}
+do_test join-3.6 {
+  catchsql {
+    SELECT * FROM t1 JOIN t2 ON t3.a=t2.b;
+  }
+} {1 {no such column: t3.a}}
+
+# EVIDENCE-OF: R-47973-48020 you cannot say "INNER OUTER JOIN", because
+# that would be contradictory.
+do_test join-3.7 {
+  catchsql {
+    SELECT * FROM t1 INNER OUTER JOIN t2;
+  }
+} {1 {unknown join type: INNER OUTER}}
+do_test join-3.8 {
+  catchsql {
+    SELECT * FROM t1 INNER OUTER CROSS JOIN t2;
+  }
+} {1 {unknown join type: INNER OUTER CROSS}}
+do_test join-3.9 {
+  catchsql {
+    SELECT * FROM t1 OUTER NATURAL INNER JOIN t2;
+  }
+} {1 {unknown join type: OUTER NATURAL INNER}}
+do_test join-3.10 {
+  catchsql {
+    SELECT * FROM t1 LEFT BOGUS JOIN t2;
+  }
+} {1 {unknown join type: LEFT BOGUS}}
+do_test join-3.11 {
+  catchsql {
+    SELECT * FROM t1 INNER BOGUS CROSS JOIN t2;
+  }
+} {1 {unknown join type: INNER BOGUS CROSS}}
+do_test join-3.12 {
+  catchsql {
+    SELECT * FROM t1 NATURAL AWK SED JOIN t2;
+  }
+} {1 {unknown join type: NATURAL AWK SED}}
+
+do_test join-4.1 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t5(a INTEGER PRIMARY KEY);
+    CREATE TABLE t6(a INTEGER);
+    INSERT INTO t6 VALUES(NULL);
+    INSERT INTO t6 VALUES(NULL);
+    INSERT INTO t6 SELECT * FROM t6;
+    INSERT INTO t6 SELECT * FROM t6;
+    INSERT INTO t6 SELECT * FROM t6;
+    INSERT INTO t6 SELECT * FROM t6;
+    INSERT INTO t6 SELECT * FROM t6;
+    INSERT INTO t6 SELECT * FROM t6;
+    COMMIT;
+  }
+  execsql {
+    SELECT * FROM t6 NATURAL JOIN t5;
+  }
+} {}
+do_test join-4.2 {
+  execsql {
+    SELECT * FROM t6, t5 WHERE t6.a<t5.a;
+  }
+} {}
+do_test join-4.3 {
+  execsql {
+    SELECT * FROM t6, t5 WHERE t6.a>t5.a;
+  }
+} {}
+do_test join-4.4 {
+  execsql {
+    UPDATE t6 SET a='xyz';
+    SELECT * FROM t6 NATURAL JOIN t5;
+  }
+} {}
+do_test join-4.6 {
+  execsql {
+    SELECT * FROM t6, t5 WHERE t6.a<t5.a;
+  }
+} {}
+do_test join-4.7 {
+  execsql {
+    SELECT * FROM t6, t5 WHERE t6.a>t5.a;
+  }
+} {}
+do_test join-4.8 {
+  execsql {
+    UPDATE t6 SET a=1;
+    SELECT * FROM t6 NATURAL JOIN t5;
+  }
+} {}
+do_test join-4.9 {
+  execsql {
+    SELECT * FROM t6, t5 WHERE t6.a<t5.a;
+  }
+} {}
+do_test join-4.10 {
+  execsql {
+    SELECT * FROM t6, t5 WHERE t6.a>t5.a;
+  }
+} {}
+
+do_test join-5.1 {
+  execsql {
+    BEGIN;
+    create table centros (id integer primary key, centro);
+    INSERT INTO centros VALUES(1,'xxx');
+    create table usuarios (id integer primary key, nombre, apellidos,
+    idcentro integer);
+    INSERT INTO usuarios VALUES(1,'a','aa',1);
+    INSERT INTO usuarios VALUES(2,'b','bb',1);
+    INSERT INTO usuarios VALUES(3,'c','cc',NULL);
+    create index idcentro on usuarios (idcentro);
+    END;
+    select usuarios.id, usuarios.nombre, centros.centro from
+    usuarios left outer join centros on usuarios.idcentro = centros.id;
+  }
+} {1 a xxx 2 b xxx 3 c {}}
+
+# A test for ticket #247.
+#
+do_test join-7.1 {
+  sqlite3_db_config db SQLITE_DBCONFIG_DQS_DML 1
+  execsql {
+    CREATE TABLE t7 (x, y);
+    INSERT INTO t7 VALUES ("pa1", 1);
+    INSERT INTO t7 VALUES ("pa2", NULL);
+    INSERT INTO t7 VALUES ("pa3", NULL);
+    INSERT INTO t7 VALUES ("pa4", 2);
+    INSERT INTO t7 VALUES ("pa30", 131);
+    INSERT INTO t7 VALUES ("pa31", 130);
+    INSERT INTO t7 VALUES ("pa28", NULL);
+
+    CREATE TABLE t8 (a integer primary key, b);
+    INSERT INTO t8 VALUES (1, "pa1");
+    INSERT INTO t8 VALUES (2, "pa4");
+    INSERT INTO t8 VALUES (3, NULL);
+    INSERT INTO t8 VALUES (4, NULL);
+    INSERT INTO t8 VALUES (130, "pa31");
+    INSERT INTO t8 VALUES (131, "pa30");
+
+    SELECT coalesce(t8.a,999) from t7 LEFT JOIN t8 on y=a;
+  }
+} {1 999 999 2 131 130 999}
+
+# Make sure a left join where the right table is really a view that
+# is itself a join works right.  Ticket #306.
+#
+ifcapable view {
+do_test join-8.1 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t9(a INTEGER PRIMARY KEY, b);
+    INSERT INTO t9 VALUES(1,11);
+    INSERT INTO t9 VALUES(2,22);
+    CREATE TABLE t10(x INTEGER PRIMARY KEY, y);
+    INSERT INTO t10 VALUES(1,2);
+    INSERT INTO t10 VALUES(3,3);    
+    CREATE TABLE t11(p INTEGER PRIMARY KEY, q);
+    INSERT INTO t11 VALUES(2,111);
+    INSERT INTO t11 VALUES(3,333);    
+    CREATE VIEW v10_11 AS SELECT x, q FROM t10, t11 WHERE t10.y=t11.p;
+    COMMIT;
+    SELECT * FROM t9 LEFT JOIN v10_11 ON( a=x );
+  }
+} {1 11 1 111 2 22 {} {}}
+ifcapable subquery {
+  do_test join-8.2 {
+    execsql {
+      SELECT * FROM t9 LEFT JOIN (SELECT x, q FROM t10, t11 WHERE t10.y=t11.p)
+           ON( a=x);
+    }
+  } {1 11 1 111 2 22 {} {}}
+}
+do_test join-8.3 {
+  execsql {
+    SELECT * FROM v10_11 LEFT JOIN t9 ON( a=x );
+  }
+} {1 111 1 11 3 333 {} {}}
+ifcapable subquery {
+  # Constant expressions in a subquery that is the right element of a
+  # LEFT JOIN evaluate to NULL for rows where the LEFT JOIN does not
+  # match.  Ticket #3300
+  do_test join-8.4 {
+    execsql {
+      SELECT * FROM t9 LEFT JOIN (SELECT 44, p, q FROM t11) AS sub1 ON p=a
+    }
+  } {1 11 {} {} {} 2 22 44 2 111}
+}
+} ;# ifcapable view
+
+# Ticket #350 describes a scenario where LEFT OUTER JOIN does not
+# function correctly if the right table in the join is really
+# subquery.
+#
+# To test the problem, we generate the same LEFT OUTER JOIN in two
+# separate selects but with on using a subquery and the other calling
+# the table directly.  Then connect the two SELECTs using an EXCEPT.
+# Both queries should generate the same results so the answer should
+# be an empty set.
+#
+ifcapable compound {
+do_test join-9.1 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t12(a,b);
+    INSERT INTO t12 VALUES(1,11);
+    INSERT INTO t12 VALUES(2,22);
+    CREATE TABLE t13(b,c);
+    INSERT INTO t13 VALUES(22,222);
+    COMMIT;
+  }
+} {}
+
+ifcapable subquery {
+  do_test join-9.1.1 {
+    execsql {
+      SELECT * FROM t12 NATURAL LEFT JOIN t13
+      EXCEPT
+      SELECT * FROM t12 NATURAL LEFT JOIN (SELECT * FROM t13 WHERE b>0);
+    }
+  } {}
+}
+ifcapable view {
+  do_test join-9.2 {
+    execsql {
+      CREATE VIEW v13 AS SELECT * FROM t13 WHERE b>0;
+      SELECT * FROM t12 NATURAL LEFT JOIN t13
+        EXCEPT
+        SELECT * FROM t12 NATURAL LEFT JOIN v13;
+    }
+  } {}
+} ;# ifcapable view
+} ;# ifcapable compound
+
+ifcapable subquery {
+  # Ticket #1697:  Left Join WHERE clause terms that contain an
+  # aggregate subquery.
+  #
+  do_test join-10.1 {
+    execsql {
+      CREATE TABLE t21(a,b,c);
+      CREATE TABLE t22(p,q);
+      CREATE INDEX i22 ON t22(q);
+      SELECT a FROM t21 LEFT JOIN t22 ON b=p WHERE q=
+         (SELECT max(m.q) FROM t22 m JOIN t21 n ON n.b=m.p WHERE n.c=1);
+    }  
+  } {}
+
+  # Test a LEFT JOIN when the right-hand side of hte join is an empty
+  # sub-query. Seems fine.
+  #
+  do_test join-10.2 {
+    execsql {
+      CREATE TABLE t23(a, b, c);
+      CREATE TABLE t24(a, b, c);
+      INSERT INTO t23 VALUES(1, 2, 3);
+    }
+    execsql {
+      SELECT * FROM t23 LEFT JOIN t24;
+    }
+  } {1 2 3 {} {} {}}
+  do_test join-10.3 {
+    execsql {
+      SELECT * FROM t23 LEFT JOIN (SELECT * FROM t24);
+    }
+  } {1 2 3 {} {} {}}
+
+} ;# ifcapable subquery
+
+#-------------------------------------------------------------------------
+# The following tests are to ensure that bug b73fb0bd64 is fixed.
+#
+do_test join-11.1 {
+  drop_all_tables
+  execsql {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b TEXT);
+    CREATE TABLE t2(a INTEGER PRIMARY KEY, b TEXT);
+    INSERT INTO t1 VALUES(1,'abc');
+    INSERT INTO t1 VALUES(2,'def');
+    INSERT INTO t2 VALUES(1,'abc');
+    INSERT INTO t2 VALUES(2,'def');
+    SELECT * FROM t1 NATURAL JOIN t2;
+  }
+} {1 abc 2 def}
+
+do_test join-11.2 {
+  execsql { SELECT a FROM t1 JOIN t1 USING (a)}
+} {1 2}
+do_test join-11.3 {
+  execsql { SELECT a FROM t1 JOIN t1 AS t2 USING (a)}
+} {1 2}
+do_test join-11.3 {
+  execsql { SELECT * FROM t1 NATURAL JOIN t1 AS t2}
+} {1 abc 2 def}
+do_test join-11.4 {
+  execsql { SELECT * FROM t1 NATURAL JOIN t1 }
+} {1 abc 2 def}
+
+do_test join-11.5 {
+  drop_all_tables
+  execsql {
+    CREATE TABLE t1(a COLLATE nocase, b);
+    CREATE TABLE t2(a, b);
+    INSERT INTO t1 VALUES('ONE', 1);
+    INSERT INTO t1 VALUES('two', 2);
+    INSERT INTO t2 VALUES('one', 1);
+    INSERT INTO t2 VALUES('two', 2);
+  }
+} {}
+do_test join-11.6 {
+  execsql { SELECT * FROM t1 NATURAL JOIN t2 }
+} {ONE 1 two 2}
+do_test join-11.7 {
+  execsql { SELECT * FROM t2 NATURAL JOIN t1 }
+} {two 2}
+
+do_test join-11.8 {
+  drop_all_tables
+  execsql {
+    CREATE TABLE t1(a, b TEXT);
+    CREATE TABLE t2(b INTEGER, a);
+    INSERT INTO t1 VALUES('one', '1.0');
+    INSERT INTO t1 VALUES('two', '2');
+    INSERT INTO t2 VALUES(1, 'one');
+    INSERT INTO t2 VALUES(2, 'two');
+  }
+} {}
+do_test join-11.9 {
+  execsql { SELECT * FROM t1 NATURAL JOIN t2 }
+} {one 1.0 two 2}
+do_test join-11.10 {
+  execsql { SELECT * FROM t2 NATURAL JOIN t1 }
+} {1 one 2 two}
+
+#-------------------------------------------------------------------------
+# Test that at most 64 tables are allowed in a join.
+#
+do_execsql_test join-12.1 {
+  CREATE TABLE t14(x);
+  INSERT INTO t14 VALUES('abcdefghij');
+}
+
+proc jointest {tn nTbl res} {
+  set sql "SELECT 1 FROM [string repeat t14, [expr $nTbl-1]] t14;"
+  uplevel [list do_catchsql_test $tn $sql $res]
+}
+
+jointest join-12.2 30 {0 1}
+jointest join-12.3 63 {0 1}
+jointest join-12.4 64 {0 1}
+jointest join-12.5 65 {1 {at most 64 tables in a join}}
+jointest join-12.6 66 {1 {at most 64 tables in a join}}
+jointest join-12.7 127 {1 {at most 64 tables in a join}}
+jointest join-12.8 128 {1 {at most 64 tables in a join}}
+
+# As of 2019-01-17, the number of elements in a SrcList is limited
+# to 200.  The following tests still run, but the answer is now
+# an SQLITE_NOMEM error.
+#
+# jointest join-12.9 1000 {1 {at most 64 tables in a join}}
+#
+#  If SQLite is built with SQLITE_MEMDEBUG, then the huge number of realloc()
+#  calls made by the following test cases are too time consuming to run.
+#  Without SQLITE_MEMDEBUG, realloc() is fast enough that these are not
+#  a problem.
+#
+# ifcapable pragma&&compileoption_diags {
+#    if {[lsearch [db eval {PRAGMA compile_options}] MEMDEBUG]<0} {
+#     jointest join-12.10 65534 {1 {at most 64 tables in a join}}
+#     jointest join-12.11 65535 {1 {too many references to "t14": max 65535}}
+#     jointest join-12.12 65536 {1 {too many references to "t14": max 65535}}
+#     jointest join-12.13 65537 {1 {too many references to "t14": max 65535}}
+#   }
+# }
+
+
+#-------------------------------------------------------------------------
+# Test a problem with reordering tables following a LEFT JOIN.
+#
+do_execsql_test join-13.0 {
+  CREATE TABLE aa(a);
+  CREATE TABLE bb(b);
+  CREATE TABLE cc(c);
+
+  INSERT INTO aa VALUES(45);
+  INSERT INTO cc VALUES(45);
+  INSERT INTO cc VALUES(45);
+}
+
+do_execsql_test join-13.1 {
+  SELECT * FROM aa LEFT JOIN bb, cc WHERE cc.c=aa.a;
+} {45 {} 45 45 {} 45}
+
+# In the following, the order of [cc] and [bb] must not be exchanged, even
+# though this would be helpful if the query used an inner join.
+do_execsql_test join-13.2 {
+  CREATE INDEX ccc ON cc(c);
+  SELECT * FROM aa LEFT JOIN bb, cc WHERE cc.c=aa.a;
+} {45 {} 45 45 {} 45}
+
+# Verify that that iTable attributes the TK_IF_NULL_ROW operators in the
+# expression tree are correctly updated by the query flattener.  This was
+# a bug discovered on 2017-05-22 by Mark Brand.
+#
+do_execsql_test join-14.1 {
+  SELECT *
+    FROM (SELECT 1 a) AS x 
+         LEFT JOIN (SELECT 1, * FROM (SELECT * FROM (SELECT 1)));
+} {1 1 1}
+do_execsql_test join-14.2 {
+  SELECT *
+  FROM (SELECT 1 a) AS x
+    LEFT JOIN (SELECT 1, * FROM (SELECT * FROM (SELECT * FROM (SELECT 1)))) AS y
+    JOIN (SELECT * FROM (SELECT 9)) AS z;
+} {1 1 1 9}
+do_execsql_test join-14.3 {
+  SELECT *
+  FROM (SELECT 111)
+  LEFT JOIN (SELECT cc+222, * FROM (SELECT * FROM (SELECT 333 cc)));
+} {111 555 333}
+
+do_execsql_test join-14.4 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(c PRIMARY KEY, a TEXT(10000), b TEXT(10000));
+  SELECT * FROM (SELECT 111) LEFT JOIN (SELECT c+222 FROM t1) GROUP BY 1;
+} {111 {}}
+do_execsql_test join-14.4b {
+  SELECT * FROM (SELECT 111) LEFT JOIN (SELECT c+222 FROM t1);
+} {111 {}}
+do_execsql_test join-14.5 {
+  SELECT * FROM (SELECT 111 AS x UNION ALL SELECT 222)
+                LEFT JOIN (SELECT c+333 AS y FROM t1) ON x=y GROUP BY 1;
+} {111 {} 222 {}}
+do_execsql_test join-14.5b {
+  SELECT count(*)
+    FROM (SELECT 111 AS x UNION ALL SELECT 222)
+         LEFT JOIN (SELECT c+333 AS y FROM t1) ON x=y;
+} {2}
+do_execsql_test join-14.5c {
+  SELECT count(*)
+    FROM (SELECT c+333 AS y FROM t1)
+         RIGHT JOIN (SELECT 111 AS x UNION ALL SELECT 222) ON x=y;
+} {2}
+do_execsql_test join-14.6 {
+  SELECT * FROM (SELECT 111 AS x UNION ALL SELECT 111)
+                LEFT JOIN (SELECT c+333 AS y FROM t1) ON x=y GROUP BY 1;
+} {111 {}}
+do_execsql_test join-14.7 {
+  SELECT * FROM (SELECT 111 AS x UNION ALL SELECT 111 UNION ALL SELECT 222)
+                LEFT JOIN (SELECT c+333 AS y FROM t1) ON x=y GROUP BY 1;
+} {111 {} 222 {}}
+do_execsql_test join-14.8 {
+  INSERT INTO t1(c) VALUES(-111);
+  SELECT * FROM (SELECT 111 AS x UNION ALL SELECT 111 UNION ALL SELECT 222)
+                LEFT JOIN (SELECT c+333 AS y FROM t1) ON x=y GROUP BY 1;
+} {111 {} 222 222}
+do_execsql_test join-14.9 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(c PRIMARY KEY) WITHOUT ROWID;
+  SELECT * FROM (SELECT 111) LEFT JOIN (SELECT c+222 FROM t1) GROUP BY 1;
+} {111 {}}
+
+# Verify the fix to ticket 
+# https://www.sqlite.org/src/tktview/7fde638e94287d2c948cd9389
+#
+db close
+sqlite3 db :memory:
+do_execsql_test join-14.10 {
+  CREATE TABLE t1(a);
+  INSERT INTO t1 VALUES(1),(2),(3);
+  CREATE VIEW v2 AS SELECT a, 1 AS b FROM t1;
+  CREATE TABLE t3(x);
+  INSERT INTO t3 VALUES(2),(4);
+  SELECT *, '|' FROM t3 LEFT JOIN v2 ON a=x WHERE b=1;
+} {2 2 1 |}
+do_execsql_test join-14.11 {
+  SELECT *, '|' FROM t3 LEFT JOIN v2 ON a=x WHERE b+1=x;
+} {2 2 1 |}
+do_execsql_test join-14.12 {
+  SELECT *, '|' FROM t3 LEFT JOIN v2 ON a=x ORDER BY b;
+} {4 {} {} | 2 2 1 |}
+
+# Verify the fix for ticket
+# https://www.sqlite.org/src/info/892fc34f173e99d8
+#
+db close
+sqlite3 db :memory:
+do_execsql_test join-14.20 {
+  CREATE TABLE t1(id INTEGER PRIMARY KEY);
+  CREATE TABLE t2(id INTEGER PRIMARY KEY, c2 INTEGER);
+  CREATE TABLE t3(id INTEGER PRIMARY KEY, c3 INTEGER);
+  INSERT INTO t1(id) VALUES(456);
+  INSERT INTO t3(id) VALUES(1),(2);
+  SELECT t1.id, x2.id, x3.id
+  FROM t1
+  LEFT JOIN (SELECT * FROM t2) AS x2 ON t1.id=x2.c2
+  LEFT JOIN t3 AS x3 ON x2.id=x3.c3;
+} {456 {} {}}
+
+# 2018-03-24.
+# E.Pasma discovered that the LEFT JOIN strength reduction optimization
+# was misbehaving.  The problem turned out to be that the
+# sqlite3ExprImpliesNotNull() routine was saying that CASE expressions
+# like
+#
+#     CASE WHEN true THEN true ELSE x=0 END
+#
+# could never be true if x is NULL.  The following test cases verify
+# that this error has been resolved.
+#
+db close
+sqlite3 db :memory:
+do_execsql_test join-15.100 {
+  CREATE TABLE t1(a INT, b INT);
+  INSERT INTO t1 VALUES(1,2),(3,4);
+  CREATE TABLE t2(x INT, y INT);
+  SELECT *, 'x'
+    FROM t1 LEFT JOIN t2
+   WHERE CASE WHEN FALSE THEN a=x ELSE 1 END;
+} {1 2 {} {} x 3 4 {} {} x}
+do_execsql_test join-15.105 {
+  SELECT *, 'x'
+    FROM t1 LEFT JOIN t2
+   WHERE a IN (1,3,x,y);
+} {1 2 {} {} x 3 4 {} {} x}
+do_execsql_test join-15.106a {
+  SELECT *, 'x' 
+    FROM t1 LEFT JOIN t2 
+   WHERE NOT ( 'x'='y' AND t2.y=1 );
+} {1 2 {} {} x 3 4 {} {} x}
+do_execsql_test join-15.106b {
+  SELECT *, 'x' 
+    FROM t1 LEFT JOIN t2 
+   WHERE ~ ( 'x'='y' AND t2.y=1 );
+} {1 2 {} {} x 3 4 {} {} x}
+do_execsql_test join-15.107 {
+  SELECT *, 'x' 
+    FROM t1 LEFT JOIN t2 
+   WHERE t2.y IS NOT 'abc'
+} {1 2 {} {} x 3 4 {} {} x}
+do_execsql_test join-15.110 {
+  DROP TABLE t1;
+  DROP TABLE t2;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b INTEGER);
+  INSERT INTO t1(a,b) VALUES(1,0),(11,1),(12,1),(13,1),(121,12);
+  CREATE INDEX t1b ON t1(b);
+  CREATE TABLE t2(x INTEGER PRIMARY KEY);
+  INSERT INTO t2(x) VALUES(0),(1);
+  SELECT  a1, a2, a3, a4, a5
+   FROM (SELECT a AS a1 FROM t1 WHERE b=0)
+        JOIN (SELECT x AS x1 FROM t2)
+        LEFT JOIN (SELECT a AS a2, b AS b2 FROM t1)
+          ON x1 IS TRUE AND b2=a1
+        JOIN (SELECT x AS x2 FROM t2)
+          ON x2<=CASE WHEN x1 THEN CASE WHEN a2 THEN 1 ELSE -1 END ELSE 0 END
+        LEFT JOIN (SELECT a AS a3, b AS b3 FROM t1)
+          ON x2 IS TRUE AND b3=a2
+        JOIN (SELECT x AS x3 FROM t2)
+          ON x3<=CASE WHEN x2 THEN CASE WHEN a3 THEN 1 ELSE -1 END ELSE 0 END
+        LEFT JOIN (SELECT a AS a4, b AS b4 FROM t1)
+          ON x3 IS TRUE AND b4=a3
+        JOIN (SELECT x AS x4 FROM t2)
+          ON x4<=CASE WHEN x3 THEN CASE WHEN a4 THEN 1 ELSE -1 END ELSE 0 END
+        LEFT JOIN (SELECT a AS a5, b AS b5 FROM t1)
+          ON x4 IS TRUE AND b5=a4
+   ORDER BY a1, a2, a3, a4, a5;
+} {1 {} {} {} {} 1 11 {} {} {} 1 12 {} {} {} 1 12 121 {} {} 1 13 {} {} {}}
+
+# 2019-02-05 Ticket https://www.sqlite.org/src/tktview/5948e09b8c415bc45da5c
+# Error in join due to the LEFT JOIN strength reduction optimization.
+#
+do_execsql_test join-16.100 {
+  DROP TABLE IF EXISTS t1;
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t1(a INT);
+  INSERT INTO t1(a) VALUES(1);
+  CREATE TABLE t2(b INT);
+  SELECT a, b
+    FROM t1 LEFT JOIN t2 ON 0
+   WHERE (b IS NOT NULL)=0;
+} {1 {}}
+
+# 2019-08-17 ticket https://sqlite.org/src/tktview/6710d2f7a13a299728ab
+# Ensure that constants that derive from the right-hand table of a LEFT JOIN
+# are never factored out, since they are not really constant.
+#
+do_execsql_test join-17.100 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(x);
+  INSERT INTO t1(x) VALUES(0),(1);
+  SELECT * FROM t1 LEFT JOIN (SELECT abs(1) AS y FROM t1) ON x WHERE NOT(y='a');
+} {1 1 1 1}
+do_execsql_test join-17.110 {
+  SELECT * FROM t1 LEFT JOIN (SELECT abs(1)+2 AS y FROM t1) ON x
+   WHERE NOT(y='a');
+} {1 3 1 3}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test join-18.1 {
+  CREATE TABLE t0(a);
+  CREATE TABLE t1(b);
+  CREATE VIEW v0 AS SELECT a FROM t1 LEFT JOIN t0;
+  INSERT INTO t1 VALUES (1);
+} {}
+
+do_execsql_test join-18.2 {
+  SELECT * FROM v0 WHERE NOT(v0.a IS FALSE);
+} {{}}
+
+do_execsql_test join-18.3 {
+  SELECT * FROM t1 LEFT JOIN t0 WHERE NOT(a IS FALSE);
+} {1 {}}
+
+do_execsql_test join-18.4 {
+  SELECT NOT(v0.a IS FALSE) FROM v0
+} {1}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test join-19.0 {
+  CREATE TABLE t1(a);
+  CREATE TABLE t2(b);
+  INSERT INTO t1(a) VALUES(0);
+  CREATE VIEW v0(c) AS SELECT t2.b FROM t1 LEFT JOIN t2;
+}
+
+do_execsql_test join-19.1 {
+  SELECT * FROM v0 WHERE v0.c NOTNULL NOTNULL; 
+} {{}}
+
+do_execsql_test join-19.2 {
+  SELECT * FROM t1 LEFT JOIN t2
+} {0 {}}
+
+do_execsql_test join-19.3 {
+  SELECT * FROM t1 LEFT JOIN t2 WHERE (b IS NOT NULL) IS NOT NULL; 
+} {0 {}}
+
+do_execsql_test join-19.4 {
+  SELECT (b IS NOT NULL) IS NOT NULL FROM t1 LEFT JOIN t2
+} {1}
+
+do_execsql_test join-19.5 {
+  SELECT * FROM t1 LEFT JOIN t2 WHERE 
+    (b IS NOT NULL AND b IS NOT NULL) IS NOT NULL; 
+} {0 {}}
+
+# 2019-11-02 ticket 623eff57e76d45f6
+# The optimization of exclusing the WHERE expression of a partial index
+# from the WHERE clause of the query if the index is used does not work
+# of the table of the index is the right-hand table of a LEFT JOIN.
+#
+db close
+sqlite3 db :memory:
+do_execsql_test join-20.1 {
+  CREATE TABLE t1(c1);
+  CREATE TABLE t0(c0);
+  INSERT INTO t0(c0) VALUES (0);
+  SELECT * FROM t0 LEFT JOIN t1 WHERE NULL IN (c1);
+} {}
+do_execsql_test join-20.2 {
+  CREATE INDEX t1x ON t1(0) WHERE NULL IN (c1);
+  SELECT * FROM t0 LEFT JOIN t1 WHERE NULL IN (c1);
+} {}
+
+# 2019-11-30 ticket 7f39060a24b47353
+# Do not allow a WHERE clause term to qualify a partial index on the
+# right table of a LEFT JOIN.
+#
+do_execsql_test join-21.10 {
+  DROP TABLE t0;
+  DROP TABLE t1;
+  CREATE TABLE t0(aa);
+  CREATE TABLE t1(bb);
+  INSERT INTO t0(aa) VALUES (1);
+  INSERT INTO t1(bb) VALUES (1);
+  SELECT 11, * FROM t1 LEFT JOIN t0 WHERE aa ISNULL;
+  SELECT 12, * FROM t1 LEFT JOIN t0 WHERE +aa ISNULL;
+  SELECT 13, * FROM t1 LEFT JOIN t0 ON aa ISNULL;
+  SELECT 14, * FROM t1 LEFT JOIN t0 ON +aa ISNULL;
+  CREATE INDEX i0 ON t0(aa) WHERE aa ISNULL;
+  SELECT 21, * FROM t1 LEFT JOIN t0 WHERE aa ISNULL;
+  SELECT 22, * FROM t1 LEFT JOIN t0 WHERE +aa ISNULL;
+  SELECT 23, * FROM t1 LEFT JOIN t0 ON aa ISNULL;
+  SELECT 24, * FROM t1 LEFT JOIN t0 ON +aa ISNULL;
+} {13 1 {} 14 1 {} 23 1 {} 24 1 {}}
+
+# 2019-12-18 problem with a LEFT JOIN where the RHS is a view.
+# Detected by Yongheng and Rui.
+# Follows from the optimization attempt of check-in 41c27bc0ff1d3135
+# on 2017-04-18
+#
+reset_db
+do_execsql_test join-22.10 {
+  CREATE TABLE t0(a, b);
+  CREATE INDEX t0a ON t0(a);
+  INSERT INTO t0 VALUES(10,10),(10,11),(10,12);
+  SELECT DISTINCT c FROM t0 LEFT JOIN (SELECT a+1 AS c FROM t0) ORDER BY c ;
+} {11}
+
+# 2019-12-22 ticket 7929c1efb2d67e98
+# Verification of testtag-20230227a
+#
+# 2023-02-27 https://sqlite.org/forum/forumpost/422e635f3beafbf6
+# Verification of testtag-20230227a, testtag-20230227b, and testtag-20230227c
+#
+reset_db
+ifcapable vtab {
+  do_execsql_test join-23.10 {
+    CREATE TABLE t0(c0);
+    INSERT INTO t0(c0) VALUES(123);
+    CREATE VIEW v0(c0) AS SELECT 0 GROUP BY 1;
+    SELECT t0.c0, v0.c0, vt0.name
+     FROM v0, t0 LEFT JOIN pragma_table_info('t0') AS vt0
+       ON vt0.name LIKE 'c0'
+     WHERE v0.c0 == 0;
+  } {123 0 c0}
+  do_execsql_test join-23.20 {
+    CREATE TABLE a(value TEXT);
+    INSERT INTO a(value) SELECT value FROM json_each('["a", "b", null]');
+    CREATE TABLE b(value TEXT);
+    INSERT INTO b(value) SELECT value FROM json_each('["a", "c", null]');
+    SELECT a.value, b.value FROM a RIGHT JOIN b ON a.value = b.value;
+  } {a a {} c {} {}}
+  do_execsql_test join-23.21 {
+    SELECT a.value, b.value FROM b LEFT JOIN a ON a.value = b.value;
+  } {a a {} c {} {}}
+  do_execsql_test join-23.22 {
+    SELECT a.value, b.value 
+      FROM json_each('["a", "c", null]') AS b
+           LEFT JOIN
+           json_each('["a", "b", null]') AS a ON a.value = b.value;
+  } {a a {} c {} {}}
+  do_execsql_test join-23.23 {
+    SELECT a.value, b.value 
+      FROM json_each('["a", "b", null]') AS a
+           RIGHT JOIN
+           json_each('["a", "c", null]') AS b ON a.value = b.value;
+  } {a a {} c {} {}}
+  do_execsql_test join-23.24 {
+    SELECT a.value, b.value 
+      FROM json_each('["a", "b", null]') AS a
+           RIGHT JOIN
+           b ON a.value = b.value;
+  } {a a {} c {} {}}
+  do_execsql_test join-23.25 {
+    SELECT a.value, b.value 
+      FROM a
+           RIGHT JOIN
+           json_each('["a", "c", null]') AS b ON a.value = b.value;
+  } {a a {} c {} {}}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test join-24.1 {
+  CREATE TABLE t1(a PRIMARY KEY, x);
+  CREATE TABLE t2(b INT);
+  CREATE INDEX t1aa ON t1(a, a);
+
+  INSERT INTO t1 VALUES('abc', 'def');
+  INSERT INTO t2 VALUES(1);
+}
+
+do_execsql_test join-24.2 {
+  SELECT * FROM t2 JOIN t1 WHERE a='abc' AND x='def';
+} {1 abc def}
+do_execsql_test join-24.3 {
+  SELECT * FROM t2 JOIN t1 WHERE a='abc' AND x='abc';
+} {}
+
+do_execsql_test join-24.2 {
+  SELECT * FROM t2 LEFT JOIN t1 ON a=0 WHERE (x='x' OR x IS NULL);
+} {1 {} {}}
+
+# 2020-09-30 ticket 66e4b0e271c47145
+# The query flattener inserts an "expr AND expr" expression as a substitution
+# for the column of a view where that view column is part of an ON expression
+# of a LEFT JOIN.
+#
+reset_db
+do_execsql_test join-25.1 {
+  CREATE TABLE t0(c0 INT);
+  CREATE VIEW v0 AS SELECT (NULL AND 5) as c0 FROM t0;
+  INSERT INTO t0(c0) VALUES (NULL);
+  SELECT count(*)  FROM v0 LEFT JOIN t0 ON v0.c0;
+} {1}
+
+# 2022-04-21 Parser issue detected by dbsqlfuzz
+#
+reset_db
+do_catchsql_test join-26.1 {
+  CREATE TABLE t4(a,b);
+  CREATE TABLE t5(a,c);
+  CREATE TABLE t6(a,d);
+  SELECT * FROM t5 JOIN ((t4 JOIN (t5 JOIN t6)) t7);
+} {/1 {.*}/}
+
+# 2022-06-09 Invalid subquery flattening caused by
+# check-in 3f45007d544e5f78 and detected by dbsqlfuzz
+#
+reset_db
+do_execsql_test join-27.1 {
+  CREATE TABLE t1(a INT,b INT,c INT);  INSERT INTO t1 VALUES(NULL,NULL,NULL);
+  CREATE TABLE t2(d INT,e INT);        INSERT INTO t2 VALUES(NULL,NULL);
+  CREATE INDEX x2 ON t1(c,b);
+  CREATE TABLE t3(x INT);              INSERT INTO t3 VALUES(NULL);
+}
+do_execsql_test join-27.2 {
+  WITH t99(b) AS MATERIALIZED (
+    SELECT b FROM t2 LEFT JOIN t1 ON c IN (SELECT x FROM t3)
+  )
+  SELECT 5 FROM t2 JOIN t99 ON b IN (1,2,3);
+} {}
+do_execsql_test join-27.3 {
+  WITH t99(b) AS NOT MATERIALIZED (
+    SELECT b FROM t2 LEFT JOIN t1 ON c IN (SELECT x FROM t3)
+  )
+  SELECT 5 FROM t2 JOIN t99 ON b IN (1,2,3);
+} {}
+do_execsql_test join-27.4 {
+  WITH t99(b) AS (SELECT b FROM t2 LEFT JOIN t1 ON c IN (SELECT x FROM t3))
+  SELECT 5 FROM t2 JOIN t99 ON b IN (1,2,3);
+} {}
+do_execsql_test join-27.5 {
+  SELECT 5
+    FROM t2 JOIN (
+       SELECT b FROM t2 LEFT JOIN t1 ON c IN (SELECT x FROM t3)
+    ) AS t99 ON b IN (1,2,3);
+} {}
+
+db null NULL
+do_execsql_test join-27.6 {
+  INSERT INTO t1 VALUES(3,4,NULL);
+  INSERT INTO t2 VALUES(1,2);
+  WITH t99(b) AS (
+    SELECT coalesce(b,3) FROM t2 AS x LEFT JOIN t1 ON c IN (SELECT x FROM t3)
+  )
+  SELECT d, e, b FROM t2 JOIN t99 ON b IN (1,2,3) ORDER BY +d;
+} {NULL NULL 3 NULL NULL 3 1 2 3 1 2 3}
+do_execsql_test join-27.7 {
+  SELECT d, e, b2
+    FROM t2 
+         JOIN (SELECT coalesce(b,3) AS b2 FROM t2 AS x LEFT JOIN t1
+                ON c IN (SELECT x FROM t3)) AS t99
+            ON b2 IN (1,2,3) ORDER BY +d;
+} {NULL NULL 3 NULL NULL 3 1 2 3 1 2 3}
+
+do_execsql_test join-27.8 {
+  DELETE FROM t1;
+  DELETE FROM t2 WHERE d IS NOT NULL;
+  DELETE FROM t3;
+  SELECT * FROM t2 JOIN (SELECT b FROM t2 LEFT JOIN t1
+                       ON c IN (SELECT x FROM t3)) AS t99 ON b IN (1,2,3);
+} {}
+
+do_execsql_test join-27.9 {
+  DELETE FROM t1;
+  DELETE FROM t2;
+  DELETE FROM t3;
+  INSERT INTO t1 VALUES(4,3,5);
+  INSERT INTO t2 VALUES(1,2);
+  INSERT INTO t3 VALUES(5);
+  SELECT * FROM t2 JOIN (SELECT b FROM t2 LEFT JOIN t1
+                       ON c IN (SELECT x FROM t3)) AS t99 ON b IS NULL;
+} {}
+do_execsql_test join-27.10 {
+  WITH t99(b) AS (
+    SELECT b FROM t2 AS x LEFT JOIN t1 ON c IN (SELECT x FROM t3)
+  )
+  SELECT d, e, b FROM t2 JOIN t99 ON b IS NULL;
+} {}
+
+
+# 2022-09-19 https://sqlite.org/forum/forumpost/96b9e5709cf47cda
+# Performance regression relative to version 3.38.0 that resulted from
+# a new query flattener restriction that was added to fixes the join-27.*
+# tests above.  The restriction needed to be removed and the join-27.*
+# problem fixed another way.
+#
+reset_db
+do_execsql_test join-28.1 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b INT, c INT);
+  CREATE TABLE t2(d INTEGER PRIMARY KEY, e INT);
+  CREATE VIEW t3(a,b,c,d,e) AS SELECT * FROM t1 LEFT JOIN t2 ON d=c;
+  CREATE TABLE t4(x INT, y INT);
+  INSERT INTO t1 VALUES(1,2,3);
+  INSERT INTO t2 VALUES(1,5);
+  INSERT INTO t4 VALUES(1,4);
+  SELECT a, b, y FROM t4 JOIN t3 ON a=x;
+} {1 2 4}
+do_eqp_test join-28.2 {
+  SELECT a, b, y FROM t4 JOIN t3 ON a=x;
+} {
+  QUERY PLAN
+  |--SCAN t4
+  `--SEARCH t1 USING INTEGER PRIMARY KEY (rowid=?)
+}
+# ^^^^^^^ Without the fix (if the query flattening optimization does not
+# run) the query plan above would look like this:
+#
+#   QUERY PLAN
+#   |--MATERIALIZE t3
+#   |  |--SCAN t1
+#   |  `--SEARCH t2 USING INTEGER PRIMARY KEY (rowid=?) LEFT-JOIN
+#   |--SCAN t4
+#   `--SEARCH t3 USING AUTOMATIC COVERING INDEX (a=?)
+
+
+# 2023-05-01 https://sqlite.org/forum/forumpost/96cd4a7e9e
+#
+reset_db
+db null NULL
+do_execsql_test join-29.1 {
+  CREATE TABLE t0(a INT); INSERT INTO t0(a) VALUES (1);
+  CREATE TABLE t1(b INT); INSERT INTO t1(b) VALUES (2);
+  CREATE VIEW v2(c) AS SELECT 3 FROM t1;
+  SELECT * FROM t1 JOIN v2 ON 0     FULL OUTER JOIN t0 ON true;
+} {NULL NULL 1}
+do_execsql_test join-29.2 {
+  SELECT * FROM t1 JOIN v2 ON 1=0   FULL OUTER JOIN t0 ON true;
+} {NULL NULL 1}
+do_execsql_test join-29.3 {
+  SELECT * FROM t1 JOIN v2 ON false FULL OUTER JOIN t0 ON true;
+} {NULL NULL 1}
+
+# 2023-05-11 https://sqlite.org/forum/forumpost/49f2c7f690
+# Verify that omit-noop-join optimization does not apply if the table
+# to be omitted has an inner-join constraint and there is a RIGHT JOIN
+# anywhere in the query.
+#
+reset_db
+db null NULL
+do_execsql_test join-30.1 {
+  CREATE TABLE t0(z INT);         INSERT INTO t0 VALUES(1),(2);
+  CREATE TABLE t1(a INT);         INSERT INTO t1 VALUES(1);
+  CREATE TABLE t2(b INT);         INSERT INTO t2 VALUES(2);
+  CREATE TABLE t3(c INT, d INT);  INSERT INTO t3 VALUES(3,4);
+  CREATE TABLE t4(e INT);         INSERT INTO t4 VALUES(5);
+  CREATE VIEW v5(x,y) AS SELECT c, d FROM t3 LEFT JOIN t4 ON false;
+}
+do_execsql_test join-30.2 {
+  SELECT DISTINCT a, b
+    FROM t1 RIGHT JOIN t2 ON a=b LEFT JOIN v5 ON false
+   WHERE x <= y;
+} {}
+do_execsql_test join-30.3 {
+  SELECT DISTINCT a, b
+    FROM t0 JOIN t1 ON z=a RIGHT JOIN t2 ON a=b LEFT JOIN v5 ON false
+   WHERE x <= y;
+} {}
+
+finish_test
diff --git a/test/join2.test b/test/join2.test
new file mode 100644
index 0000000000000000000000000000000000000000..6f2fe1d77074e5e207a2ff22bb0536e3152bdbd1
--- /dev/null
+++ b/test/join2.test
@@ -0,0 +1,452 @@
+# 2002 May 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests for joins, including outer joins.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix join2
+
+do_test join2-1.1 {
+  execsql {
+    CREATE TABLE t1(a,b);
+    INSERT INTO t1 VALUES(1,11);
+    INSERT INTO t1 VALUES(2,22);
+    INSERT INTO t1 VALUES(3,33);
+    SELECT * FROM t1;
+  }  
+} {1 11 2 22 3 33}
+do_test join2-1.2 {
+  execsql {
+    CREATE TABLE t2(b,c);
+    INSERT INTO t2 VALUES(11,111);
+    INSERT INTO t2 VALUES(33,333);
+    INSERT INTO t2 VALUES(44,444);
+    SELECT * FROM t2;
+  }  
+} {11 111 33 333 44 444};
+do_test join2-1.3 {
+  execsql {
+    CREATE TABLE t3(c,d);
+    INSERT INTO t3 VALUES(111,1111);
+    INSERT INTO t3 VALUES(444,4444);
+    INSERT INTO t3 VALUES(555,5555);
+    SELECT * FROM t3;
+  }  
+} {111 1111 444 4444 555 5555}
+
+do_test join2-1.4 {
+  execsql {
+    SELECT * FROM
+      t1 NATURAL JOIN t2 NATURAL JOIN t3
+  }
+} {1 11 111 1111}
+do_test join2-1.5 {
+  execsql {
+    SELECT * FROM
+      t1 NATURAL JOIN t2 NATURAL LEFT OUTER JOIN t3
+  }
+} {1 11 111 1111 3 33 333 {}}
+do_test join2-1.6 {
+  execsql {
+    SELECT * FROM
+      t1 NATURAL LEFT OUTER JOIN t2 NATURAL JOIN t3
+  }
+} {1 11 111 1111}
+do_test join2-1.6-rj {
+  execsql {
+    SELECT * FROM
+      t2 NATURAL RIGHT OUTER JOIN t1 NATURAL JOIN t3
+  }
+} {11 111 1 1111}
+ifcapable subquery {
+  do_test join2-1.7 {
+    execsql {
+      SELECT * FROM
+        t1 NATURAL LEFT OUTER JOIN (t2 NATURAL JOIN t3)
+    }
+  } {1 11 111 1111 2 22 {} {} 3 33 {} {}}
+  do_test join2-1.7-rj {
+    execsql {
+      SELECT a, b, c, d FROM
+        t2 NATURAL JOIN t3 NATURAL RIGHT JOIN t1
+    }
+  } {1 11 111 1111 2 22 {} {} 3 33 {} {}}
+}
+
+#-------------------------------------------------------------------------
+# Check that ticket [25e335f802ddc] has been resolved. It should be an
+# error for the ON clause of a LEFT JOIN to refer to a table to its right.
+#
+do_execsql_test 2.0 {
+  CREATE TABLE aa(a);
+  CREATE TABLE bb(b);
+  CREATE TABLE cc(c);
+  INSERT INTO aa VALUES('one');
+  INSERT INTO bb VALUES('one');
+  INSERT INTO cc VALUES('one');
+}
+
+do_catchsql_test 2.1 {
+  SELECT * FROM aa LEFT JOIN cc ON (a=b) JOIN bb ON (b=coalesce(c,1));
+} {1 {ON clause references tables to its right}}
+do_catchsql_test 2.1b {
+  SELECT * FROM aa RIGHT JOIN cc ON (a=b) JOIN bb ON (b=coalesce(c,1));
+} {1 {ON clause references tables to its right}}
+do_catchsql_test 2.2 {
+  SELECT * FROM aa JOIN cc ON (a=b) JOIN bb ON (b=c);
+} {0 {one one one}}
+
+#-------------------------------------------------------------------------
+# Test that a problem causing where.c to overlook opportunities to
+# omit unnecessary tables from a LEFT JOIN when UNIQUE, NOT NULL column 
+# that makes this possible happens to be the leftmost in its table.
+#
+reset_db
+do_execsql_test 3.0 {
+  CREATE TABLE t1(k1 INTEGER PRIMARY KEY, k2, k3);
+  CREATE TABLE t2(k2 INTEGER PRIMARY KEY, v2);
+
+  -- Prior to this problem being fixed, table t3_2 would be omitted from
+  -- the join queries below, but if t3_1 were used in its place it would
+  -- not.
+  CREATE TABLE t3_1(k3 PRIMARY KEY, v3) WITHOUT ROWID;
+  CREATE TABLE t3_2(v3, k3 PRIMARY KEY) WITHOUT ROWID;
+}
+
+do_eqp_test 3.1 {
+  SELECT v2 FROM t1 LEFT JOIN t2 USING (k2) LEFT JOIN t3_1 USING (k3);
+} {
+  QUERY PLAN
+  |--SCAN t1
+  `--SEARCH t2 USING INTEGER PRIMARY KEY (rowid=?) LEFT-JOIN
+}
+
+do_eqp_test 3.2 {
+  SELECT v2 FROM t1 LEFT JOIN t2 USING (k2) LEFT JOIN t3_2 USING (k3);
+} {
+  QUERY PLAN
+  |--SCAN t1
+  `--SEARCH t2 USING INTEGER PRIMARY KEY (rowid=?) LEFT-JOIN
+}
+
+#-------------------------------------------------------------------------
+# Test that tables other than the rightmost can be omitted from a
+# LEFT JOIN query.
+#
+do_execsql_test 4.0 {
+  CREATE TABLE c1(k INTEGER PRIMARY KEY, v1);
+  CREATE TABLE c2(k INTEGER PRIMARY KEY, v2);
+  CREATE TABLE c3(k INTEGER PRIMARY KEY, v3);
+
+  INSERT INTO c1 VALUES(1, 2);
+  INSERT INTO c2 VALUES(2, 3);
+  INSERT INTO c3 VALUES(3, 'v3');
+
+  INSERT INTO c1 VALUES(111, 1112);
+  INSERT INTO c2 VALUES(112, 1113);
+  INSERT INTO c3 VALUES(113, 'v1113');
+}
+do_execsql_test 4.1.1 {
+  SELECT v1, v3 FROM c1 LEFT JOIN c2 ON (c2.k=v1) LEFT JOIN c3 ON (c3.k=v2);
+} {2 v3 1112 {}}
+do_execsql_test 4.1.2 {
+  SELECT v1, v3 FROM c1 LEFT JOIN c2 ON (c2.k=v1) LEFT JOIN c3 ON (c3.k=v1+1);
+} {2 v3 1112 {}}
+
+do_execsql_test 4.1.3 {
+  SELECT DISTINCT v1, v3 FROM c1 LEFT JOIN c2 LEFT JOIN c3 ON (c3.k=v1+1);
+} {2 v3 1112 {}}
+
+do_execsql_test 4.1.4 {
+  SELECT v1, v3 FROM c1 LEFT JOIN c2 LEFT JOIN c3 ON (c3.k=v1+1);
+} {2 v3 2 v3 1112 {} 1112 {}}
+
+do_eqp_test 4.1.5 {
+  SELECT v1, v3 FROM c1 LEFT JOIN c2 ON (c2.k=v1) LEFT JOIN c3 ON (c3.k=v2);
+} {
+  QUERY PLAN
+  |--SCAN c1
+  |--SEARCH c2 USING INTEGER PRIMARY KEY (rowid=?) LEFT-JOIN
+  `--SEARCH c3 USING INTEGER PRIMARY KEY (rowid=?) LEFT-JOIN
+}
+do_eqp_test 4.1.6 {
+  SELECT v1, v3 FROM c1 LEFT JOIN c2 ON (c2.k=v1) LEFT JOIN c3 ON (c3.k=v1+1);
+} {
+  QUERY PLAN
+  |--SCAN c1
+  `--SEARCH c3 USING INTEGER PRIMARY KEY (rowid=?) LEFT-JOIN
+}
+
+do_execsql_test 4.2.0 {
+  DROP TABLE c1;
+  DROP TABLE c2;
+  DROP TABLE c3;
+  CREATE TABLE c1(k UNIQUE, v1);
+  CREATE TABLE c2(k UNIQUE, v2);
+  CREATE TABLE c3(k UNIQUE, v3);
+
+  INSERT INTO c1 VALUES(1, 2);
+  INSERT INTO c2 VALUES(2, 3);
+  INSERT INTO c3 VALUES(3, 'v3');
+
+  INSERT INTO c1 VALUES(111, 1112);
+  INSERT INTO c2 VALUES(112, 1113);
+  INSERT INTO c3 VALUES(113, 'v1113');
+}
+do_execsql_test 4.2.1 {
+  SELECT v1, v3 FROM c1 LEFT JOIN c2 ON (c2.k=v1) LEFT JOIN c3 ON (c3.k=v2);
+} {2 v3 1112 {}}
+do_execsql_test 4.2.2 {
+  SELECT v1, v3 FROM c1 LEFT JOIN c2 ON (c2.k=v1) LEFT JOIN c3 ON (c3.k=v1+1);
+} {2 v3 1112 {}}
+
+do_execsql_test 4.2.3 {
+  SELECT DISTINCT v1, v3 FROM c1 LEFT JOIN c2 LEFT JOIN c3 ON (c3.k=v1+1);
+} {2 v3 1112 {}}
+
+do_execsql_test 4.2.4 {
+  SELECT v1, v3 FROM c1 LEFT JOIN c2 LEFT JOIN c3 ON (c3.k=v1+1);
+} {2 v3 2 v3 1112 {} 1112 {}}
+
+do_eqp_test 4.2.5 {
+  SELECT v1, v3 FROM c1 LEFT JOIN c2 ON (c2.k=v1) LEFT JOIN c3 ON (c3.k=v2);
+} {
+  QUERY PLAN
+  |--SCAN c1
+  |--SEARCH c2 USING INDEX sqlite_autoindex_c2_1 (k=?) LEFT-JOIN
+  `--SEARCH c3 USING INDEX sqlite_autoindex_c3_1 (k=?) LEFT-JOIN
+}
+do_eqp_test 4.2.6 {
+  SELECT v1, v3 FROM c1 LEFT JOIN c2 ON (c2.k=v1) LEFT JOIN c3 ON (c3.k=v1+1);
+} {
+  QUERY PLAN
+  |--SCAN c1
+  `--SEARCH c3 USING INDEX sqlite_autoindex_c3_1 (k=?) LEFT-JOIN
+}
+
+# 2017-11-23 (Thanksgiving day)
+# OSSFuzz found an assertion fault in the new LEFT JOIN eliminator code.
+#
+do_execsql_test 4.3.0 {
+  DROP TABLE IF EXISTS t1;
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t1(x PRIMARY KEY) WITHOUT ROWID;
+  CREATE TABLE t2(x);
+  SELECT a.x
+    FROM t1 AS a
+    LEFT JOIN t1 AS b ON (a.x=b.x)
+    LEFT JOIN t2 AS c ON (a.x=c.x);
+} {}
+do_execsql_test 4.3.1 {
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<10)
+    INSERT INTO t1(x) SELECT x FROM c;
+  INSERT INTO t2(x) SELECT x+9 FROM t1;
+  SELECT a.x, c.x
+    FROM t1 AS a
+    LEFT JOIN t1 AS b ON (a.x=b.x)
+    LEFT JOIN t2 AS c ON (a.x=c.x);
+} {1 {} 2 {} 3 {} 4 {} 5 {} 6 {} 7 {} 8 {} 9 {} 10 10}
+
+do_execsql_test 5.0 {
+  CREATE TABLE s1 (a INTEGER PRIMARY KEY);
+  CREATE TABLE s2 (a INTEGER PRIMARY KEY);
+  CREATE TABLE s3 (a INTEGER);
+  CREATE UNIQUE INDEX ndx on s3(a);
+}
+do_eqp_test 5.1 {
+  SELECT s1.a FROM s1 left join s2 using (a);
+} {SCAN s1}
+
+do_eqp_test 5.2 {
+  SELECT s1.a FROM s1 left join s3 using (a);
+} {SCAN s1}
+
+do_execsql_test 6.0 {
+  CREATE TABLE u1(a INTEGER PRIMARY KEY, b, c);
+  CREATE TABLE u2(a INTEGER PRIMARY KEY, b, c);
+  CREATE INDEX u1ab ON u1(b, c);
+}
+do_eqp_test 6.1 {
+  SELECT u2.* FROM u2 LEFT JOIN u1 ON( u1.a=u2.a AND u1.b=u2.b AND u1.c=u2.c );
+} {SCAN u2}
+
+db close
+sqlite3 db :memory:
+do_execsql_test 7.0 {
+  CREATE TABLE t1(a,b);  INSERT INTO t1 VALUES(1,2),(3,4),(5,6);
+  CREATE TABLE t2(c,d);  INSERT INTO t2 VALUES(2,4),(3,6);
+  CREATE TABLE t3(x);    INSERT INTO t3 VALUES(9);
+  CREATE VIEW test AS
+    SELECT *, 'x'
+      FROM t1 LEFT JOIN (SELECT * FROM t2, t3) ON (c=b AND x=9)
+      WHERE c IS NULL;
+  SELECT * FROM test;
+} {3 4 {} {} {} x 5 6 {} {} {} x}
+
+#-------------------------------------------------------------------------
+# Ticket [dfd66334].
+#
+reset_db
+do_execsql_test 8.0 {
+  CREATE TABLE t0(c0);
+  CREATE TABLE t1(c0);
+}
+
+do_execsql_test 8.1 {
+  SELECT * FROM t0 LEFT JOIN t1 
+  WHERE (t1.c0 BETWEEN 0 AND 0) > ('' AND t0.c0);
+}
+
+#-------------------------------------------------------------------------
+# Ticket [45f4bf4eb] reported by Manuel Rigger (2020-04-25)
+#
+# Follow up error reported by Eric Speckman on the SQLite forum
+# https://sqlite.org/forum/info/c49496d24d35bd7c (2020-08-19)
+#
+reset_db
+do_execsql_test 9.0 {
+  CREATE TABLE t0(c0 INT);
+  CREATE VIEW v0(c0) AS SELECT CAST(t0.c0 AS INTEGER) FROM t0;
+  INSERT INTO t0(c0) VALUES (0);
+}
+
+do_execsql_test 9.1 {
+  SELECT typeof(c0), c0 FROM v0 WHERE c0>='0'
+} {integer 0}
+
+do_execsql_test 9.2 {
+  SELECT * FROM t0, v0 WHERE v0.c0 >= '0';
+} {0 0}
+
+do_execsql_test 9.3 {
+  SELECT * FROM t0 LEFT JOIN v0 WHERE v0.c0 >= '0';
+} {0 0}
+
+do_execsql_test 9.4 {
+  SELECT * FROM t0 LEFT JOIN v0 ON v0.c0 >= '0';
+} {0 0}
+
+do_execsql_test 9.5 {
+  SELECT * FROM t0 LEFT JOIN v0 ON v0.c0 >= '0' WHERE TRUE 
+  UNION SELECT 0,0 WHERE 0; 
+} {0 0}
+
+do_execsql_test 9.10 {
+  CREATE TABLE t1 (aaa);
+  INSERT INTO t1 VALUES(23456);
+  CREATE TABLE t2(bbb);
+  CREATE VIEW v2(ccc) AS SELECT bbb IS 1234 FROM t2;
+  SELECT ccc, ccc IS NULL AS ddd FROM t1 LEFT JOIN v2;
+} {{} 1}
+optimization_control db query-flattener 0
+do_execsql_test 9.11 {
+  SELECT ccc, ccc IS NULL AS ddd FROM t1 LEFT JOIN v2;
+} {{} 1}
+
+# 2023-03-01 https://sqlite.org/forum/forumpost/26387ea7ef
+# When flattening a VIEW which is the RHS of a LEFT JOIN, always put
+# an TK_IF_NULL_ROW operator on all accesses, even TK_COLUMN nodes, since
+# the TK_COLUMN might reference an outer subquery.
+#
+reset_db
+db null NULL
+do_execsql_test 10.1 {
+  CREATE TABLE t1 (x INTEGER);
+  INSERT INTO t1 VALUES(1);   -- Some true value
+  CREATE TABLE t2 (z TEXT);
+  INSERT INTO t2 VALUES('some value');
+  CREATE TABLE t3(w TEXT);
+  INSERT INTO t3 VALUES('some other value');
+}
+do_execsql_test 10.2 {
+  SELECT (
+    SELECT 1 FROM t2 LEFT JOIN (SELECT x AS v FROM t3) ON 500=v WHERE (v OR FALSE)
+  ) FROM t1;
+} NULL
+do_execsql_test 10.3 {
+  SELECT (
+    SELECT 1 FROM t2 LEFT JOIN (SELECT x AS v FROM t3) ON 500=v WHERE (v)
+  ) FROM t1;
+} NULL
+optimization_control db all 0
+do_execsql_test 10.4 {
+  SELECT (
+    SELECT 1 FROM t2 LEFT JOIN (SELECT x AS v FROM t3) ON 500=v WHERE (v OR FALSE)
+  ) FROM t1;
+} NULL
+
+# 2023-03-02 https://sqlite.org/forum/forumpost/402f05296d
+#
+# The TK_IF_NULL_ROW expression node must ensure that it does not overwrite
+# the result register of an OP_Once subroutine.
+#
+optimization_control db all 1
+do_execsql_test 11.1 {
+  DROP TABLE t1;
+  DROP TABLE t2;
+  DROP TABLE t3;
+  CREATE TABLE t1(x TEXT, y INTEGER);
+  INSERT INTO t1(x,y) VALUES(NULL,-2),(NULL,1),('0',2);
+  CREATE TABLE t2(z INTEGER);
+  INSERT INTO t2(z) VALUES(2),(-2);
+  CREATE VIEW t3 AS SELECT z, (SELECT count(*) FROM t1) AS w FROM t2;
+  SELECT * FROM t1 LEFT JOIN t3 ON y=z;
+} {NULL -2 -2 3 NULL 1 NULL NULL 0 2 2 3}
+
+# 2023-03-11 https://sqlite.org/forum/forumpost/b405033490fa56d9
+# The fix that test 11.1 above checks also caused a performance regression.
+# This test case verifies that the performance regression has been resolved.
+#
+do_execsql_test 12.1 {
+  DROP TABLE t1;
+  DROP TABLE t2;
+  DROP VIEW t3;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY);
+  WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<100)
+    INSERT INTO t1(a) SELECT n FROM c;
+  CREATE VIEW t2(b) AS SELECT a FROM t1;
+}
+do_vmstep_test 12.2 {
+  SELECT * FROM t1 LEFT JOIN t2 ON a=b LIMIT 10 OFFSET 98;
+} 2000 {99 99 100 100}
+do_eqp_test 12.3 {
+  SELECT * FROM t1 LEFT JOIN t2 ON a=b LIMIT 10 OFFSET 98;
+} {
+  QUERY PLAN
+  |--SCAN t1
+  `--SEARCH t1 USING INTEGER PRIMARY KEY (rowid=?) LEFT-JOIN
+}
+
+# 2024-09-05 https://sqlite.org/forum/forumpost/8a1e467e905b8d27
+# When performing the Omit-Noop-Join optimization, if FROM clause terms
+# to the right of the omitted join have the reverse-order bit set in the
+# WhereInfo.revMask bitmask, those bits need to be shifted to account
+# for the omitted join.
+#
+reset_db
+do_execsql_test 13.0 {
+  CREATE TABLE t1(a1 INTEGER PRIMARY KEY, b1 INT);
+  CREATE TABLE t2(c2 INT, d2 INTEGER PRIMARY KEY);
+  CREATE TABLE t3(e3 INTEGER PRIMARY KEY);
+  INSERT INTO t1 VALUES(33,0);
+  INSERT INTO t2 VALUES(33,1),(33,2);
+}
+do_execsql_test 13.1 {
+  SELECT t1.a1, t2.d2
+    FROM (t1 LEFT JOIN t3 ON t3.e3=t1.b1) JOIN t2 ON t2.c2=t1.a1
+   WHERE t1.a1=33
+   ORDER BY t2.d2 DESC;
+} {33 2 33 1}
+
+finish_test
diff --git a/test/join3.test b/test/join3.test
new file mode 100644
index 0000000000000000000000000000000000000000..f1c273d1d0060f1adccd7cac432dd62390fe74d7
--- /dev/null
+++ b/test/join3.test
@@ -0,0 +1,62 @@
+# 2002 May 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests for joins, including outer joins, where
+# there are a large number of tables involved in the join.
+#
+# $Id: join3.test,v 1.4 2005/01/19 23:24:51 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# An unrestricted join
+#
+catch {unset ::result}
+set result {}
+for {set N 1} {$N<=$bitmask_size} {incr N} {
+  lappend result $N
+  do_test join3-1.$N {
+    execsql "CREATE TABLE t${N}(x);"
+    execsql "INSERT INTO t$N VALUES($N)"
+    set sql "SELECT * FROM t1"
+    for {set i 2} {$i<=$N} {incr i} {append sql ", t$i"}
+    execsql $sql
+  } $result
+}
+
+# Joins with a comparison
+#
+set result {}
+for {set N 1} {$N<=$bitmask_size} {incr N} {
+  lappend result $N
+  do_test join3-2.$N {
+    set sql "SELECT * FROM t1"
+    for {set i 2} {$i<=$N} {incr i} {append sql ", t$i"}
+    set sep WHERE
+    for {set i 1} {$i<$N} {incr i} {
+      append sql " $sep t[expr {$i+1}].x==t$i.x+1"
+      set sep AND
+    }
+    execsql $sql
+  } $result
+}
+
+# Error of too many tables in the join
+#
+do_test join3-3.1 {
+  set sql "SELECT * FROM t1 AS t0, t1"
+  for {set i 2} {$i<=$bitmask_size} {incr i} {append sql ", t$i"}
+  catchsql $sql
+} [list 1 "at most $bitmask_size tables in a join"]
+
+
+finish_test
diff --git a/test/join4.test b/test/join4.test
new file mode 100644
index 0000000000000000000000000000000000000000..77db25ffb02827137d204a5736be9ff915dad686
--- /dev/null
+++ b/test/join4.test
@@ -0,0 +1,98 @@
+# 2002 May 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests for left outer joins containing WHERE
+# clauses that restrict the scope of the left term of the join.
+#
+# $Id: join4.test,v 1.4 2005/03/29 03:11:00 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable tempdb {
+  do_test join4-1.1 {
+    execsql {
+      create temp table t1(a integer, b varchar(10));
+      insert into t1 values(1,'one');
+      insert into t1 values(2,'two');
+      insert into t1 values(3,'three');
+      insert into t1 values(4,'four');
+  
+      create temp table t2(x integer, y varchar(10), z varchar(10));
+      insert into t2 values(2,'niban','ok');
+      insert into t2 values(4,'yonban','err');
+    }
+    execsql {
+      select * from t1 left outer join t2 on t1.a=t2.x where t2.z='ok'
+    }
+  } {2 two 2 niban ok}
+} else {
+  do_test join4-1.1 {
+    execsql {
+      create table t1(a integer, b varchar(10));
+      insert into t1 values(1,'one');
+      insert into t1 values(2,'two');
+      insert into t1 values(3,'three');
+      insert into t1 values(4,'four');
+  
+      create table t2(x integer, y varchar(10), z varchar(10));
+      insert into t2 values(2,'niban','ok');
+      insert into t2 values(4,'yonban','err');
+    }
+    execsql {
+      select * from t1 left outer join t2 on t1.a=t2.x where t2.z='ok'
+    }
+  } {2 two 2 niban ok}
+}
+do_test join4-1.2 {
+  execsql {
+    select * from t1 left outer join t2 on t1.a=t2.x and t2.z='ok'
+  }
+} {1 one {} {} {} 2 two 2 niban ok 3 three {} {} {} 4 four {} {} {}}
+do_test join4-1.3 {
+  execsql {
+    create index i2 on t2(z);
+  }
+  execsql {
+    select * from t1 left outer join t2 on t1.a=t2.x where t2.z='ok'
+  }
+} {2 two 2 niban ok}
+do_test join4-1.4 {
+  execsql {
+    select * from t1 left outer join t2 on t1.a=t2.x and t2.z='ok'
+  }
+} {1 one {} {} {} 2 two 2 niban ok 3 three {} {} {} 4 four {} {} {}}
+do_test join4-1.5 {
+  execsql {
+    select * from t1 left outer join t2 on t1.a=t2.x where t2.z>='ok'
+  }
+} {2 two 2 niban ok}
+do_test join4-1.4 {
+  execsql {
+    select * from t1 left outer join t2 on t1.a=t2.x and t2.z>='ok'
+  }
+} {1 one {} {} {} 2 two 2 niban ok 3 three {} {} {} 4 four {} {} {}}
+ifcapable subquery {
+  do_test join4-1.6 {
+    execsql {
+      select * from t1 left outer join t2 on t1.a=t2.x where t2.z IN ('ok')
+    }
+  } {2 two 2 niban ok}
+  do_test join4-1.7 {
+    execsql {
+      select * from t1 left outer join t2 on t1.a=t2.x and t2.z IN ('ok')
+    }
+  } {1 one {} {} {} 2 two 2 niban ok 3 three {} {} {} 4 four {} {} {}}
+}
+
+
+finish_test
diff --git a/test/join5.test b/test/join5.test
new file mode 100644
index 0000000000000000000000000000000000000000..703c256f8674048f56b267d40ff452bbf5fc54f8
--- /dev/null
+++ b/test/join5.test
@@ -0,0 +1,458 @@
+# 2005 September 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests for left outer joins containing ON
+# clauses that restrict the scope of the left term of the join.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix join5
+
+
+do_test join5-1.1 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t1(a integer primary key, b integer, c integer);
+    CREATE TABLE t2(x integer primary key, y);
+    CREATE TABLE t3(p integer primary key, q);
+    INSERT INTO t3 VALUES(11,'t3-11');
+    INSERT INTO t3 VALUES(12,'t3-12');
+    INSERT INTO t2 VALUES(11,'t2-11');
+    INSERT INTO t2 VALUES(12,'t2-12');
+    INSERT INTO t1 VALUES(1, 5, 0);
+    INSERT INTO t1 VALUES(2, 11, 2);
+    INSERT INTO t1 VALUES(3, 12, 1);
+    COMMIT;
+  }
+} {}
+do_test join5-1.2 {
+  execsql {
+    select * from t1 left join t2 on t1.b=t2.x and t1.c=1
+  }
+} {1 5 0 {} {} 2 11 2 {} {} 3 12 1 12 t2-12}
+do_test join5-1.3 {
+  execsql {
+    select * from t1 left join t2 on t1.b=t2.x where t1.c=1
+  }
+} {3 12 1 12 t2-12}
+do_test join5-1.4 {
+  execsql {
+    select * from t1 left join t2 on t1.b=t2.x and t1.c=1
+                     left join t3 on t1.b=t3.p and t1.c=2
+  }
+} {1 5 0 {} {} {} {} 2 11 2 {} {} 11 t3-11 3 12 1 12 t2-12 {} {}}
+do_test join5-1.5 {
+  execsql {
+    select * from t1 left join t2 on t1.b=t2.x and t1.c=1
+                     left join t3 on t1.b=t3.p where t1.c=2
+  }
+} {2 11 2 {} {} 11 t3-11}
+
+# Ticket #2403
+#
+do_test join5-2.1 {
+  execsql {
+    CREATE TABLE ab(a,b);
+    INSERT INTO "ab" VALUES(1,2);
+    INSERT INTO "ab" VALUES(3,NULL);
+
+    CREATE TABLE xy(x,y);
+    INSERT INTO "xy" VALUES(2,3);
+    INSERT INTO "xy" VALUES(NULL,1);
+  }
+  execsql {SELECT * FROM xy LEFT JOIN ab ON 0}
+} {2 3 {} {} {} 1 {} {}}
+do_test join5-2.2 {
+  execsql {SELECT * FROM xy LEFT JOIN ab ON 1}
+} {2 3 1 2 2 3 3 {} {} 1 1 2 {} 1 3 {}}
+do_test join5-2.3 {
+  execsql {SELECT * FROM xy LEFT JOIN ab ON NULL}
+} {2 3 {} {} {} 1 {} {}}
+do_test join5-2.4 {
+  execsql {SELECT * FROM xy LEFT JOIN ab ON 0 WHERE 0}
+} {}
+do_test join5-2.5 {
+  execsql {SELECT * FROM xy LEFT JOIN ab ON 1 WHERE 0}
+} {}
+do_test join5-2.6 {
+  execsql {SELECT * FROM xy LEFT JOIN ab ON NULL WHERE 0}
+} {}
+do_test join5-2.7 {
+  execsql {SELECT * FROM xy LEFT JOIN ab ON 0 WHERE 1}
+} {2 3 {} {} {} 1 {} {}}
+do_test join5-2.8 {
+  execsql {SELECT * FROM xy LEFT JOIN ab ON 1 WHERE 1}
+} {2 3 1 2 2 3 3 {} {} 1 1 2 {} 1 3 {}}
+do_test join5-2.9 {
+  execsql {SELECT * FROM xy LEFT JOIN ab ON NULL WHERE 1}
+} {2 3 {} {} {} 1 {} {}}
+do_test join5-2.10 {
+  execsql {SELECT * FROM xy LEFT JOIN ab ON 0 WHERE NULL}
+} {}
+do_test join5-2.11 {
+  execsql {SELECT * FROM xy LEFT JOIN ab ON 1 WHERE NULL}
+} {}
+do_test join5-2.12 {
+  execsql {SELECT * FROM xy LEFT JOIN ab ON NULL WHERE NULL}
+} {}
+
+# Ticket https://www.sqlite.org/src/tktview/6f2222d550f5b0ee7ed37601
+# Incorrect output on a LEFT JOIN.
+#
+do_execsql_test join5-3.1 {
+  DROP TABLE IF EXISTS t1;
+  DROP TABLE IF EXISTS t2;
+  DROP TABLE IF EXISTS t3;
+  CREATE TABLE x1(a);
+  INSERT INTO x1 VALUES(1);
+  CREATE TABLE x2(b NOT NULL);
+  CREATE TABLE x3(c, d);
+  INSERT INTO x3 VALUES('a', NULL);
+  INSERT INTO x3 VALUES('b', NULL);
+  INSERT INTO x3 VALUES('c', NULL);
+  SELECT * FROM x1 LEFT JOIN x2 LEFT JOIN x3 ON x3.d = x2.b;
+} {1 {} {} {}}
+do_execsql_test join5-3.2 {
+  DROP TABLE IF EXISTS t1;
+  DROP TABLE IF EXISTS t2;
+  DROP TABLE IF EXISTS t3;
+  DROP TABLE IF EXISTS t4;
+  DROP TABLE IF EXISTS t5;
+  CREATE TABLE t1(x text NOT NULL, y text);
+  CREATE TABLE t2(u text NOT NULL, x text NOT NULL);
+  CREATE TABLE t3(w text NOT NULL, v text);
+  CREATE TABLE t4(w text NOT NULL, z text NOT NULL);
+  CREATE TABLE t5(z text NOT NULL, m text);
+  INSERT INTO t1 VALUES('f6d7661f-4efe-4c90-87b5-858e61cd178b',NULL);
+  INSERT INTO t1 VALUES('f6ea82c3-2cad-45ce-ae8f-3ddca4fb2f48',NULL);
+  INSERT INTO t1 VALUES('f6f47499-ecb4-474b-9a02-35be73c235e5',NULL);
+  INSERT INTO t1 VALUES('56f47499-ecb4-474b-9a02-35be73c235e5',NULL);
+  INSERT INTO t3 VALUES('007f2033-cb20-494c-b135-a1e4eb66130c',
+                        'f6d7661f-4efe-4c90-87b5-858e61cd178b');
+  SELECT *
+    FROM t3
+         INNER JOIN t1 ON t1.x= t3.v AND t1.y IS NULL
+         LEFT JOIN t4  ON t4.w = t3.w
+         LEFT JOIN t5  ON t5.z = t4.z
+         LEFT JOIN t2  ON t2.u = t5.m
+         LEFT JOIN t1 xyz ON xyz.y = t2.x;
+} {007f2033-cb20-494c-b135-a1e4eb66130c f6d7661f-4efe-4c90-87b5-858e61cd178b f6d7661f-4efe-4c90-87b5-858e61cd178b {} {} {} {} {} {} {} {} {}}
+do_execsql_test join5-3.3 {
+  DROP TABLE IF EXISTS x1;
+  DROP TABLE IF EXISTS x2;
+  DROP TABLE IF EXISTS x3;
+  CREATE TABLE x1(a);
+  INSERT INTO x1 VALUES(1);
+  CREATE TABLE x2(b NOT NULL);
+  CREATE TABLE x3(c, d);
+  INSERT INTO x3 VALUES('a', NULL);
+  INSERT INTO x3 VALUES('b', NULL);
+  INSERT INTO x3 VALUES('c', NULL);
+  SELECT * FROM x1 LEFT JOIN x2 JOIN x3 WHERE x3.d = x2.b;
+} {}
+
+# Ticket https://www.sqlite.org/src/tktview/c2a19d81652f40568c770c43 on
+# 2015-08-20.  LEFT JOIN and the push-down optimization.
+#
+do_execsql_test join5-4.1 {
+  SELECT *
+  FROM (
+      SELECT 'apple' fruit
+      UNION ALL SELECT 'banana'
+  ) a
+  JOIN (
+      SELECT 'apple' fruit
+      UNION ALL SELECT 'banana'
+  ) b ON a.fruit=b.fruit
+  LEFT JOIN (
+      SELECT 1 isyellow
+  ) c ON b.fruit='banana';
+} {apple apple {} banana banana 1}
+do_execsql_test join5-4.2 {
+  SELECT *
+    FROM (SELECT 'apple' fruit UNION ALL SELECT 'banana')
+         LEFT JOIN (SELECT 1) ON fruit='banana';
+} {apple {} banana 1}
+
+#-------------------------------------------------------------------------
+do_execsql_test 5.0 {
+  CREATE TABLE y1(x, y, z);
+  INSERT INTO y1 VALUES(0, 0, 1);
+  CREATE TABLE y2(a);
+}
+
+do_execsql_test 5.1 {
+  SELECT count(z) FROM y1 LEFT JOIN y2 ON x GROUP BY y;
+} 1
+
+do_execsql_test 5.2 {
+  SELECT count(z) FROM ( SELECT * FROM y1 ) LEFT JOIN y2 ON x GROUP BY y;
+} 1
+
+do_execsql_test 5.3 {
+  CREATE VIEW v1 AS SELECT x, y, z FROM y1;
+  SELECT count(z) FROM v1 LEFT JOIN y2 ON x GROUP BY y;
+} 1
+
+do_execsql_test 5.4 {
+  SELECT count(z) FROM ( SELECT * FROM y1 ) LEFT JOIN y2 ON x
+} 1
+
+do_execsql_test 5.5 {
+  SELECT * FROM ( SELECT * FROM y1 ) LEFT JOIN y2 ON x
+} {0 0 1 {}}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 6.1 {
+  CREATE TABLE t1(x); 
+  INSERT INTO t1 VALUES(1);
+
+  CREATE TABLE t2(y INTEGER PRIMARY KEY,a,b);
+  INSERT INTO t2 VALUES(1,2,3);
+  CREATE INDEX t2a ON t2(a); 
+  CREATE INDEX t2b ON t2(b); 
+}
+
+do_execsql_test 6.2 {
+  SELECT * FROM t1 LEFT JOIN t2 ON a=2 OR b=3 WHERE y IS NULL;
+} {}
+
+do_execsql_test 6.3.1 {
+  CREATE TABLE t3(x);
+  INSERT INTO t3 VALUES(1);
+  CREATE TABLE t4(y, z);
+  SELECT ifnull(z, '!!!') FROM t3 LEFT JOIN t4 ON (x=y);
+} {!!!}
+
+do_execsql_test 6.3.2 {
+  CREATE INDEX t4i ON t4(y, ifnull(z, '!!!'));
+  SELECT ifnull(z, '!!!') FROM t3 LEFT JOIN t4 ON (x=y);
+} {!!!}
+
+# 2019-02-08 https://sqlite.org/src/info/4e8e4857d32d401f
+reset_db
+do_execsql_test 6.100 {
+  CREATE TABLE t1(aa, bb);
+  CREATE INDEX t1x1 on t1(abs(aa), abs(bb));
+  INSERT INTO t1 VALUES(-2,-3),(+2,-3),(-2,+3),(+2,+3);
+  SELECT * FROM (t1) 
+   WHERE ((abs(aa)=1 AND 1=2) OR abs(aa)=2)
+     AND abs(bb)=3
+  ORDER BY +1, +2;
+} {-2 -3 -2 3 2 -3 2 3}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 7.0 {
+  CREATE TABLE t1(x);
+  INSERT INTO t1 VALUES(1);
+}
+
+do_execsql_test 7.1 {
+  CREATE TABLE t2(x, y, z);
+  CREATE INDEX t2xy ON t2(x, y);
+  WITH s(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<50000
+  )
+  INSERT INTO t2 SELECT i/10, i, NULL FROM s;
+  ANALYZE;
+}
+
+do_eqp_test 7.2 {
+  SELECT * FROM t1 LEFT JOIN t2 ON (
+    t2.x = t1.x AND (t2.y=? OR (t2.y=? AND t2.z IS NOT NULL))
+  );
+} {
+  QUERY PLAN
+  |--SCAN t1
+  `--MULTI-INDEX OR
+     |--INDEX 1
+     |  `--SEARCH t2 USING INDEX t2xy (x=? AND y=?) LEFT-JOIN
+     `--INDEX 2
+        `--SEARCH t2 USING INDEX t2xy (x=? AND y=?) LEFT-JOIN
+}
+
+do_execsql_test 7.3 {
+  CREATE TABLE t3(x);
+  INSERT INTO t3(x) VALUES(1);
+  CREATE INDEX t3x ON t3(x);
+
+  CREATE TABLE t4(x, y, z);
+  CREATE INDEX t4xy ON t4(x, y);
+  CREATE INDEX t4xz ON t4(x, z);
+
+  WITH s(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<50000)
+  INSERT INTO t4 SELECT i/10, i, i FROM s;
+
+  ANALYZE;
+  UPDATE sqlite_stat1 SET stat='1000000 10 1' WHERE idx='t3x';
+  ANALYZE sqlite_schema;
+}
+
+# If both sides of the OR reference the right-hand side of the LEFT JOIN
+# then simplify the LEFT JOIN.
+#
+do_eqp_test 7.4 {
+  SELECT * FROM t3 LEFT JOIN t4 ON (t4.x = t3.x) WHERE (t4.y = ? OR t4.z = ?);
+} {
+  QUERY PLAN
+  |--SCAN t4
+  `--SEARCH t3 USING COVERING INDEX t3x (x=?)
+} 
+# If only one side of the OR references the right-hand side of the LEFT JOIN
+# then do not do the simplification
+#
+do_eqp_test 7.4b {
+  SELECT * FROM t3 LEFT JOIN t4 ON (t4.x = t3.x) WHERE (t4.y = ? OR t3.x = ?);
+} {
+  QUERY PLAN
+  |--SCAN t3
+  `--SEARCH t4 USING INDEX t4xz (x=?) LEFT-JOIN
+} 
+do_eqp_test 7.4c {
+  SELECT * FROM t3 LEFT JOIN t4 ON (t4.x = t3.x) WHERE (t3.x = ? OR t4.z = ?);
+} {
+  QUERY PLAN
+  |--SCAN t3
+  `--SEARCH t4 USING INDEX t4xz (x=?) LEFT-JOIN
+} 
+do_eqp_test 7.4d {
+  SELECT * FROM t3 CROSS JOIN t4 ON (t4.x = t3.x) WHERE (+t4.y = ? OR t4.z = ?);
+} {
+  QUERY PLAN
+  |--SCAN t3
+  |--BLOOM FILTER ON t4 (x=?)
+  `--SEARCH t4 USING INDEX t4xz (x=?)
+} 
+
+reset_db
+do_execsql_test 8.0 {
+  CREATE TABLE t0 (c0, c1, PRIMARY KEY (c0, c1));
+  CREATE TABLE t1 (c0);
+
+  INSERT INTO t1 VALUES (2);
+
+  INSERT INTO t0 VALUES(0, 10);
+  INSERT INTO t0 VALUES(1, 10);
+  INSERT INTO t0 VALUES(2, 10);
+  INSERT INTO t0 VALUES(3, 10);
+}
+
+do_execsql_test 8.1 {
+  SELECT * FROM t0, t1 
+  WHERE (t0.c1 >= 1 OR t0.c1 < 1) AND t0.c0 IN (1, t1.c0) ORDER BY 1;
+} {
+  1 10 2
+  2 10 2
+}
+
+
+# 2022-01-31 dbsqlfuzz 787d9bd73164c6f0c85469e2e48b2aff19af6938
+#
+reset_db
+do_execsql_test 9.1 {
+  CREATE TABLE t1(a ,b FLOAT);
+  INSERT INTO t1 VALUES(1,1);
+  CREATE INDEX t1x1 ON t1(a,b,a,a,a,a,a,a,a,a,a,b);
+  ANALYZE sqlite_schema;
+  INSERT INTO sqlite_stat1 VALUES('t1','t1x1','648 324 81 81 81 81 81 81 81081 81 81 81');
+  ANALYZE sqlite_schema;
+}
+do_catchsql_test 9.2 {
+  SELECT a FROM 
+      (SELECT a FROM t1 NATURAL LEFT JOIN t1) NATURAL LEFT JOIN t1 
+  WHERE (rowid,1)<=(5,0);
+} {0 1}
+
+# 2022-03-02 https://sqlite.org/forum/info/50a1bbe08ce4c29c
+# Bloom-filter pulldown is incompatible with skip-scan.
+#
+reset_db
+do_execsql_test 10.1 {
+  CREATE TABLE t1(x INT);
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<20)
+    INSERT INTO t1(x) SELECT 0 FROM c;
+  CREATE INDEX t1x1 ON t1(x BETWEEN 0 AND 10, x);
+  ANALYZE;
+  DELETE FROM t1;
+  INSERT INTO t1 VALUES(0),(0);
+  CREATE VIEW v1 AS SELECT * FROM t1 NATURAL JOIN t1 WHERE (x BETWEEN 0 AND 10) OR true;
+  CREATE VIEW v2 AS SELECT * FROM v1 NATURAL JOIN v1;
+  CREATE VIEW v3 AS SELECT * FROM v2, v1 USING (x) GROUP BY x;
+  SELECT x FROM v3; 
+} {0}
+
+# 2022-03-24 https://sqlite.org/forum/forumpost/031e262a89b6a9d2
+# Bloom-filter on a LEFT JOIN with NULL-based WHERE constraints.
+#
+reset_db
+do_execsql_test 11.1 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b INT);
+  CREATE TABLE t2(c INTEGER PRIMARY KEY, d INT);
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<8)
+  INSERT INTO t1(a,b) SELECT x, 10*x FROM c;
+  INSERT INTO t2(c,d) SELECT b*2, 100*a FROM t1;
+  ANALYZE;
+  DELETE FROM sqlite_stat1;
+  INSERT INTO sqlite_stat1(tbl,idx,stat) VALUES
+    ('t1',NULL,150105),('t2',NULL,98747);
+  ANALYZE sqlite_schema;
+} {}
+do_execsql_test 11.2 {
+  SELECT count(*) FROM t1 LEFT JOIN t2 ON c=b WHERE d IS NULL;
+} {4}
+do_execsql_test 11.3 {
+  SELECT count(*) FROM t1 LEFT JOIN t2 ON c=b WHERE d=100;
+} {1}
+do_execsql_test 11.4 {
+  SELECT count(*) FROM t1 LEFT JOIN t2 ON c=b WHERE d>=300;
+} {2}
+
+# 2022-05-03 https://sqlite.org/forum/forumpost/2482b32700384a0f
+# Bloom-filter pull-down does not handle NOT NULL constraints correctly.
+#
+reset_db
+do_execsql_test 12.1 {
+  CREATE TABLE t1(a INT, b INT, c INT);
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<100)
+    INSERT INTO t1(a,b,c) SELECT x, x*1000, x*1000000 FROM c;
+  CREATE TABLE t2(b INT, x INT);
+  INSERT INTO t2(b,x) SELECT b, a FROM t1 WHERE a%3==0;
+  CREATE INDEX t2b ON t2(b);
+  CREATE TABLE t3(c INT, y INT);
+  INSERT INTO t3(c,y) SELECT c, a FROM t1 WHERE a%4==0;
+  CREATE INDEX t3c ON t3(c);
+  INSERT INTO t1(a,b,c) VALUES(200, 200000, NULL);
+  ANALYZE;
+} {}
+do_execsql_test 12.2 {
+  SELECT * FROM t1 NATURAL JOIN t2 NATURAL JOIN t3 WHERE x>0 AND y>0
+  ORDER BY +a;
+} {
+  12  12000  12000000  12  12
+  24  24000  24000000  24  24
+  36  36000  36000000  36  36
+  48  48000  48000000  48  48
+  60  60000  60000000  60  60
+  72  72000  72000000  72  72
+  84  84000  84000000  84  84
+  96  96000  96000000  96  96
+}
+
+
+
+
+finish_test
diff --git a/test/join6.test b/test/join6.test
new file mode 100644
index 0000000000000000000000000000000000000000..802f1b3745d10a1902192492369a4f82aa1dfe86
--- /dev/null
+++ b/test/join6.test
@@ -0,0 +1,176 @@
+# 2009 December 9
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests for N-way joins (N>2) which make
+# use of USING or NATURAL JOIN.  For such joins, the USING and
+# NATURAL JOIN processing needs to search all tables to the left
+# of the join looking for a match.  See ticket [f74beaabde]
+# for additional information.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+
+# The problem as initially reported on the mailing list:
+#
+do_test join6-1.1 {
+  execsql {
+    CREATE TABLE t1(a);
+    CREATE TABLE t2(a);
+    CREATE TABLE t3(a,b);
+    INSERT INTO t1 VALUES(1);
+    INSERT INTO t3 VALUES(1,2);
+
+    SELECT * FROM t1 LEFT JOIN t2 USING(a) LEFT JOIN t3 USING(a);
+  }
+} {1 2}
+do_test join6-1.2 {
+  execsql {
+    SELECT t1.a, t3.b 
+      FROM t1 LEFT JOIN t2 ON t1.a=t2.a LEFT JOIN t3 ON t2.a=t3.a;
+  }
+} {1 {}}
+do_test join6-1.3 {
+  execsql {
+    SELECT t1.a, t3.b
+      FROM t1 LEFT JOIN t2 ON t1.a=t2.a LEFT JOIN t3 ON t1.a=t3.a;
+  }
+} {1 2}
+
+
+do_test join6-2.1 {
+  execsql {
+    DROP TABLE t1;
+    DROP TABLE t2;
+    DROP TABLE t3;
+
+    CREATE TABLE t1(x,y);
+    CREATE TABLE t2(y,z);
+    CREATE TABLE t3(x,z);
+
+    INSERT INTO t1 VALUES(1,2);
+    INSERT INTO t1 VALUES(3,4);
+
+    INSERT INTO t2 VALUES(2,3);
+    INSERT INTO t2 VALUES(4,5);
+
+    INSERT INTO t3 VALUES(1,3);
+    INSERT INTO t3 VALUES(3,5);
+
+    SELECT * FROM t1 JOIN t2 USING (y) JOIN t3 USING(x);
+  }
+} {1 2 3 3 3 4 5 5}
+do_test join6-2.2 {
+  execsql {
+    SELECT * FROM t1 NATURAL JOIN t2 NATURAL JOIN t3;
+  }
+} {1 2 3 3 4 5}
+
+
+do_test join6-3.1 {
+  execsql {
+    DROP TABLE t1;
+    DROP TABLE t2;
+    DROP TABLE t3;
+
+    CREATE TABLE t1(a,x,y);
+    INSERT INTO t1 VALUES(1,91,92);
+    INSERT INTO t1 VALUES(2,93,94);
+    
+    CREATE TABLE t2(b,y,z);
+    INSERT INTO t2 VALUES(3,92,93);
+    INSERT INTO t2 VALUES(4,94,95);
+    
+    CREATE TABLE t3(c,x,z);
+    INSERT INTO t3 VALUES(5,91,93);
+    INSERT INTO t3 VALUES(6,99,95);
+    
+    SELECT * FROM t1 NATURAL JOIN t2 NATURAL JOIN t3;
+  }
+} {1 91 92 3 93 5}
+do_test join6-3.2 {
+  execsql {
+    SELECT * FROM t1 JOIN t2 NATURAL JOIN t3;
+  }
+} {1 91 92 3 92 93 5}
+do_test join6-3.3 {
+  execsql {
+    SELECT * FROM t1 JOIN t2 USING(y) NATURAL JOIN t3;
+  }
+} {1 91 92 3 93 5}
+do_test join6-3.4 {
+  execsql {
+    SELECT * FROM t1 NATURAL JOIN t2 JOIN t3 USING(x,z);
+  }
+} {1 91 92 3 93 5}
+do_test join6-3.5 {
+  execsql {
+    SELECT * FROM t1 NATURAL JOIN t2 JOIN t3 USING(x);
+  }
+} {1 91 92 3 93 5 93}
+do_test join6-3.6 {
+  execsql {
+    SELECT * FROM t1 NATURAL JOIN t2 JOIN t3 USING(z);
+  }
+} {1 91 92 3 93 5 91 2 93 94 4 95 6 99}
+
+ifcapable compound {
+  do_test join6-4.1 {
+    execsql {
+      SELECT * FROM
+         (SELECT 1 AS a, 91 AS x, 92 AS y UNION SELECT 2, 93, 94)
+         NATURAL JOIN t2 NATURAL JOIN t3
+    }
+  } {1 91 92 3 93 5}
+  do_test join6-4.2 {
+    execsql {
+      SELECT * FROM t1 NATURAL JOIN
+         (SELECT 3 AS b, 92 AS y, 93 AS z UNION SELECT 4, 94, 95)
+         NATURAL JOIN t3
+    }
+  } {1 91 92 3 93 5}
+  do_test join6-4.3 {
+    execsql {
+      SELECT * FROM t1 NATURAL JOIN t2 NATURAL JOIN
+         (SELECT 5 AS c, 91 AS x, 93 AS z UNION SELECT 6, 99, 95)
+    }
+  } {1 91 92 3 93 5}
+}
+
+do_execsql_test join6-5.1 {
+  CREATE TABLE tx(a, b, c, d, e, f, g, h, i, j, k, l, m, n, o PRIMARY KEY) 
+  WITHOUT ROWID;
+  INSERT INTO tx VALUES(
+    1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
+  );
+} {}
+do_execsql_test joint6-5.2 {
+  SELECT o FROM tx NATURAL JOIN tx;
+} {15}
+
+do_execsql_test join6-5.3 {
+  CREATE TABLE ty(a,Ñ,x6,x7,x8,Q,I,v,x1,L,E,x2,x3,x4,x5,s,g PRIMARY KEY,b,c)
+  WITHOUT ROWID;
+  SELECT a FROM ty NATURAL JOIN ty;
+}
+
+
+
+
+
+
+
+
+
+
+finish_test
diff --git a/test/join7.test b/test/join7.test
new file mode 100644
index 0000000000000000000000000000000000000000..42cc357418a8098de6fcd2e0792d80a02f101b82
--- /dev/null
+++ b/test/join7.test
@@ -0,0 +1,355 @@
+# 2022-04-09
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests for RIGHT and FULL OUTER JOINs.
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+foreach {id schema} {
+  1 {
+    CREATE TABLE t1(a INT, b INT);
+    INSERT INTO t1 VALUES(1,2),(1,3),(1,4);
+    CREATE INDEX t1a ON t1(a);
+    CREATE TABLE t2(c INT, d INT);
+    INSERT INTO t2 VALUES(3,33),(4,44),(5,55);
+    CREATE INDEX t2c ON t2(c);
+    CREATE VIEW dual(dummy) AS VALUES('x');
+  }
+  2 {
+    CREATE TABLE t1(a INT, b INT);
+    INSERT INTO t1 VALUES(1,2),(1,3),(1,4);
+    CREATE INDEX t1ab ON t1(a,b);
+    CREATE TABLE t2(c INT, d INT);
+    INSERT INTO t2 VALUES(3,33),(4,44),(5,55);
+    CREATE INDEX t2cd ON t2(c,d);
+    CREATE VIEW dual(dummy) AS VALUES('x');
+  }
+  3 {
+    CREATE TABLE t1(a INT, b INT);
+    INSERT INTO t1 VALUES(1,2),(1,3),(1,4);
+    CREATE INDEX t1a ON t1(a);
+    CREATE TABLE t2(c INT, d INT PRIMARY KEY) WITHOUT ROWID;
+    INSERT INTO t2 VALUES(3,33),(4,44),(5,55);
+    CREATE INDEX t2c ON t2(c);
+    CREATE VIEW dual(dummy) AS VALUES('x');
+  }
+  4 {
+    CREATE TABLE t1(a INT, b INT);
+    INSERT INTO t1 VALUES(1,2),(1,3),(1,4);
+    CREATE TABLE t2(c INTEGER PRIMARY KEY, d INT);
+    INSERT INTO t2 VALUES(3,33),(4,44),(5,55);
+    CREATE VIEW dual(dummy) AS VALUES('x');
+  }
+  5 {
+    CREATE TABLE t1(a INT, b INT);
+    INSERT INTO t1 VALUES(1,2),(1,3),(1,4);
+    CREATE TABLE t2(c INT PRIMARY KEY, d INT) WITHOUT ROWID;
+    INSERT INTO t2 VALUES(3,33),(4,44),(5,55);
+    CREATE VIEW dual(dummy) AS VALUES('x');
+  }
+  6 {
+    CREATE TABLE t1(a INT, b INT);
+    INSERT INTO t1 VALUES(1,2),(1,3),(1,4);
+    CREATE VIEW t2(c,d) AS VALUES(3,33),(4,44),(5,55);
+    CREATE VIEW dual(dummy) AS VALUES('x');
+  }
+  7 {
+    CREATE VIEW t1(a,b) AS VALUES(1,2),(1,3),(1,4);
+    CREATE TABLE t2(c INTEGER PRIMARY KEY, d INT);
+    INSERT INTO t2 VALUES(3,33),(4,44),(5,55);
+    CREATE VIEW dual(dummy) AS VALUES('x');
+  }
+  8 {
+    CREATE TABLE t1(a INT, b INT);
+    INSERT INTO t1 VALUES(1,2),(1,3),(1,4);
+    CREATE TABLE t2(c INT, d INT);
+    INSERT INTO t2 VALUES(3,33),(4,44),(5,55);
+    CREATE VIEW dual(dummy) AS VALUES('x');
+  }
+  9 {
+    CREATE TABLE t1(a INT, b INT);
+    INSERT INTO t1 VALUES(1,2),(1,3),(1,4);
+    CREATE TABLE t2a(c INTEGER PRIMARY KEY, i1 INT);
+    CREATE TABLE t2b(i1 INTEGER PRIMARY KEY, d INT);
+    CREATE VIEW t2(c,d) AS SELECT c, d FROM t2a NATURAL JOIN t2b;
+    INSERT INTO t2a VALUES(3,93),(4,94),(5,95),(6,96),(7,97);
+    INSERT INTO t2b VALUES(91,11),(92,22),(93,33),(94,44),(95,55);
+    CREATE TABLE dual(dummy TEXT);
+    INSERT INTO dual(dummy) VALUES('x');
+  }
+  10 {
+    CREATE TABLE t1(a INT, b INT, PRIMARY KEY(a,b)) WITHOUT ROWID;
+    INSERT INTO t1 VALUES(1,2),(1,3),(1,4);
+    CREATE TABLE t2a(c INTEGER PRIMARY KEY, i1 INT);
+    CREATE TABLE t2b(i1 INTEGER PRIMARY KEY, d INT);
+    CREATE VIEW t2(c,d) AS SELECT c, d FROM t2a NATURAL JOIN t2b;
+    INSERT INTO t2a VALUES(3,93),(4,94),(5,95),(6,96),(7,97);
+    INSERT INTO t2b VALUES(91,11),(92,22),(93,33),(94,44),(95,55);
+    CREATE TABLE dual(dummy TEXT);
+    INSERT INTO dual(dummy) VALUES('x');
+  }
+} {
+  reset_db
+  db nullvalue NULL
+  do_execsql_test join7-$id.setup $schema {}
+
+  # Verified against PG-14 for case 1
+  do_execsql_test join7-$id.10 {
+    SELECT b, d FROM t1 FULL OUTER JOIN t2 ON b=c ORDER BY +b;
+  } {
+    NULL 55
+    2    NULL
+    3    33
+    4    44
+  }
+
+  # Verified against PG-14 for case 1
+  do_execsql_test join7-$id.20 {
+    SELECT a, c FROM t1 FULL OUTER JOIN t2 ON b=c ORDER BY +b;
+  } {
+    NULL  5
+    1     NULL
+    1     3
+    1     4
+  }
+
+  do_execsql_test join7-$id.30 {
+    SELECT * FROM t1 FULL OUTER JOIN t2 ON b=c ORDER BY +b;
+  } {
+    NULL NULL 5    55
+    1    2    NULL NULL
+    1    3    3    33
+    1    4    4    44
+  }
+  do_execsql_test join7-$id.31 {
+    SELECT t1.*, t2.* FROM t2 FULL OUTER JOIN t1 ON b=c ORDER BY +b;
+  } {
+    NULL NULL 5    55
+    1    2    NULL NULL
+    1    3    3    33
+    1    4    4    44
+  }
+  do_execsql_test join7-$id.32 {
+    SELECT t1.*, t2.* FROM t2 FULL OUTER JOIN t1 ON b=c
+     WHERE b=c
+     ORDER BY +b;
+  } {
+    1    3    3    33
+    1    4    4    44
+  }
+  do_execsql_test join7-$id.33 {
+    SELECT t1.*, t2.* FROM t2 FULL OUTER JOIN t1 ON b=c
+     WHERE b>0
+     ORDER BY +b;
+  } {
+    1    2    NULL NULL
+    1    3    3    33
+    1    4    4    44
+  }
+  do_execsql_test join7-$id.34 {
+    SELECT t1.*, t2.* FROM t2 FULL OUTER JOIN t1 ON b=c
+     WHERE b>0 OR b IS NULL
+     ORDER BY +b;
+  } {
+    NULL NULL 5    55
+    1    2    NULL NULL
+    1    3    3    33
+    1    4    4    44
+  }
+  do_execsql_test join7-$id.35 {
+    SELECT t1.*, t2.* FROM t2 FULL OUTER JOIN t1 ON b=c AND b>3 AND c>4
+     ORDER BY coalesce(b,c,0);
+  } {
+    1    2    NULL NULL
+    NULL NULL 3    33
+    1    3    NULL NULL
+    NULL NULL 4    44
+    1    4    NULL NULL
+    NULL NULL 5    55
+  }
+  do_execsql_test join7-$id.36 {
+    SELECT t1.*, t2.* FROM t2 FULL OUTER JOIN t1 ON b=c AND b>3 WHERE c>4
+     ORDER BY coalesce(b,c,0);
+  } {
+    NULL NULL 5    55
+  }
+  do_execsql_test join7-$id.37 {
+    SELECT t1.*, t2.* FROM t2 FULL OUTER JOIN t1 ON b=c WHERE b>3 AND c>4
+     ORDER BY coalesce(b,c,0);
+  } {
+  }
+  do_execsql_test join7-$id.38 {
+    SELECT t1.*, t2.* FROM t2 FULL OUTER JOIN t1 ON b=c WHERE b>3 OR c>4
+     ORDER BY coalesce(b,c,0);
+  } {
+    1    4    4    44
+    NULL NULL 5    55
+  }
+  do_execsql_test join7-$id.39 {
+    SELECT t1.*, t2.* FROM t2 FULL OUTER JOIN t1 ON b=c AND (b>3 OR c>4)
+     ORDER BY coalesce(b,c,0);
+  } {
+    1    2    NULL NULL
+    NULL NULL 3    33
+    1    3    NULL NULL
+    1    4    4    44
+    NULL NULL 5    55
+  }
+  do_execsql_test join7-$id.40 {
+    SELECT * FROM t1 RIGHT OUTER JOIN t2 ON b=c ORDER BY +b;
+  } {
+    NULL NULL 5    55
+    1    3    3    33
+    1    4    4    44
+  }
+  do_execsql_test join7-$id.50 {
+    SELECT t1.*, t2.* FROM t2 LEFT OUTER JOIN t1 ON b=c ORDER BY +b;
+  } {
+    NULL NULL 5    55
+    1    3    3    33
+    1    4    4    44
+  }
+  do_execsql_test join7-$id.60 {
+    SELECT * FROM dual JOIN t1 ON true RIGHT OUTER JOIN t2 ON b=c ORDER BY +b;
+  } {
+    NULL NULL NULL 5    55
+    x    1    3    3    33
+    x    1    4    4    44
+  }
+  do_execsql_test join7-$id.70 {
+    SELECT t1.*, t2.* 
+      FROM t2 LEFT JOIN (dual JOIN t1 ON true) ON b=c ORDER BY +b;
+  } {
+    NULL NULL 5    55
+    1    3    3    33
+    1    4    4    44
+  }
+  do_execsql_test join7-$id.80 {
+    SELECT * FROM dual CROSS JOIN t1 RIGHT OUTER JOIN t2 ON b=c ORDER BY +b;
+  } {
+    NULL NULL NULL 5    55
+    x    1    3    3    33
+    x    1    4    4    44
+  }
+  do_execsql_test join7-$id.81 {
+    SELECT dual.*, t1.*, t2.*
+      FROM t1 CROSS JOIN dual RIGHT OUTER JOIN t2 ON b=c ORDER BY +b;
+  } {
+    NULL NULL NULL 5    55
+    x    1    3    3    33
+    x    1    4    4    44
+  }
+  do_execsql_test join7-$id.90 {
+    SELECT * FROM t1 LEFT OUTER JOIN t2 ON b=c ORDER BY +b;
+  } {
+    1    2    NULL NULL
+    1    3    3    33
+    1    4    4    44
+  }
+  do_execsql_test join7-$id.100 {
+    SELECT * FROM t1 FULL OUTER JOIN t2 ON b=c AND a=1 ORDER BY +b;
+  } {
+    NULL NULL 5    55
+    1    2    NULL NULL
+    1    3    3    33
+    1    4    4    44
+  }
+  do_execsql_test join7-$id.101 {
+    SELECT t1.*, t2.* FROM t2 FULL OUTER JOIN t1 ON b=c AND a=1 ORDER BY +b;
+  } {
+    NULL NULL 5    55
+    1    2    NULL NULL
+    1    3    3    33
+    1    4    4    44
+  }
+
+  # Verified against PG-14 for case 1
+  do_execsql_test join7-$id.110 {
+    SELECT * FROM t1 FULL OUTER JOIN t2 ON b=c WHERE a=1 ORDER BY +b;
+  } {
+    1    2    NULL NULL
+    1    3    3    33
+    1    4    4    44
+  }
+
+  do_execsql_test join7-$id.111 {
+    SELECT t1.*, t2.* FROM t2 FULL OUTER JOIN t1 ON b=c WHERE a=1 ORDER BY +b;
+  } {
+    1    2    NULL NULL
+    1    3    3    33
+    1    4    4    44
+  }
+
+  # Verified against PG-14 for case 1
+  do_execsql_test join7-$id.115 {
+    SELECT * FROM t1 FULL OUTER JOIN t2 ON b=c
+     WHERE a=1 OR a IS NULL ORDER BY +b;
+  } {
+    NULL NULL 5    55
+    1    2    NULL NULL
+    1    3    3    33
+    1    4    4    44
+  }
+
+  do_execsql_test join7-$id.116 {
+    SELECT t1.*, t2.* FROM t2 FULL OUTER JOIN t1 ON b=c
+     WHERE a=1 OR a IS NULL ORDER BY +b;
+  } {
+    NULL NULL 5    55
+    1    2    NULL NULL
+    1    3    3    33
+    1    4    4    44
+  }
+
+  # Verified against PG-14 for case 1:
+  do_execsql_test join7-$id.120 {
+    SELECT * FROM t1 FULL OUTER JOIN t2 ON b=c WHERE a IS NULL ORDER BY +d;
+  } {
+    NULL NULL 5    55
+  }
+
+  # Verified against PG-14 for case 1:
+  do_execsql_test join7-$id.130 {
+    SELECT * FROM t1 FULL OUTER JOIN t2 ON b=c AND d<=0 ORDER BY +b, +d;
+  } {
+    NULL NULL 3    33
+    NULL NULL 4    44
+    NULL NULL 5    55
+    1    2    NULL NULL
+    1    3    NULL NULL
+    1    4    NULL NULL
+  }
+
+  # Verified against PG-14 for case 1:
+  do_execsql_test join7-$id.140 {
+    SELECT a, b, c, d
+      FROM t2 FULL OUTER JOIN t1 ON b=c AND d<=0 ORDER BY +b, +d;
+  } {
+    NULL NULL 3    33
+    NULL NULL 4    44
+    NULL NULL 5    55
+    1    2    NULL NULL
+    1    3    NULL NULL
+    1    4    NULL NULL
+  }
+
+  do_execsql_test join7-$id.141 {
+    SELECT a, b, c, d
+      FROM t2 FULL OUTER JOIN t1 ON b=c AND d<=0
+     ORDER BY +b, +d LIMIT 2 OFFSET 2
+  } {
+    NULL NULL 5    55
+    1    2    NULL NULL
+  }
+}  
+finish_test
diff --git a/test/join8.test b/test/join8.test
new file mode 100644
index 0000000000000000000000000000000000000000..fc50df32ff0a1224e12e871e64994912ecf589d5
--- /dev/null
+++ b/test/join8.test
@@ -0,0 +1,815 @@
+# 2022-04-12
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements tests for RIGHT and FULL OUTER JOINs.
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+db null NULL
+# EVIDENCE-OF: R-33754-02880 you can say "LEFT RIGHT JOIN" which is the
+# same as "FULL JOIN".
+do_execsql_test join8-10 {
+  CREATE TABLE t1(a,b,c);
+  CREATE TABLE t2(x,y);
+  CREATE INDEX t2x ON t2(x);
+  SELECT avg(DISTINCT b) FROM (SELECT * FROM t2 LEFT RIGHT JOIN t1 ON c);
+} {NULL}
+
+# Pending optimization opportunity:
+# Row-value initialization subroutines must be called from with the
+# RIGHT JOIN body subroutine before the first use of any register containing
+# the results of that subroutine.  This seems dodgy.  Test case:
+#
+reset_db
+do_execsql_test join8-1000 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY AUTOINCREMENT,b,c,d,e,f,g,h,j,k,l,m,n,o,p,q,r,s);
+  CREATE INDEX t1x1 ON t1(g+h,j,k);
+  CREATE INDEX t1x2 ON t1(b);
+  INSERT INTO t1 DEFAULT VALUES;
+} {}
+do_catchsql_test join8-1010 {
+  SELECT a
+    FROM (
+          SELECT a
+            FROM (
+                  SELECT a
+                    FROM (
+                          SELECT a FROM t1 NATURAL LEFT JOIN t1
+                           WHERE (b, 2 ) IS ( SELECT 2 IN(2,2),2)
+                         )
+                    NATURAL LEFT FULL JOIN t1
+                   WHERE ( rowid , 1 )<=(CASE 5 WHEN 619 THEN 841 ELSE 3374391096 END,0)
+                   ORDER BY a ASC
+                 )
+            NATURAL LEFT JOIN t1
+           WHERE (b, 2 ) IS ( SELECT 3 IN(3,3),3)
+         )
+    NATURAL LEFT FULL JOIN t1
+   WHERE ( rowid , 1 )<=(CASE 5 WHEN 619 THEN 841 ELSE 3374391096 END,0)
+   ORDER BY a ASC;
+} {0 1}
+
+# Pending issue #2: (now resolved)
+# Jump to addrHalt inside the RIGHT JOIN body subroutine bypasses the
+# OP_Return, resulting in a subroutine loop.  Test case:
+#
+reset_db
+do_execsql_test join8-2000 {
+  CREATE TABLE t1(a int, b int, c int);
+  INSERT INTO t1 VALUES(1,2,3),(4,5,6);
+  CREATE TABLE t2(d int, e int);
+  INSERT INTO t2 VALUES(3,333),(4,444);
+  CREATE TABLE t3(f int, g int);
+  PRAGMA automatic_index=off;
+} {}
+do_catchsql_test join8-2010 {
+  SELECT * FROM t1 RIGHT JOIN t2 ON c=d JOIN t3 ON f=e;
+} {0 {}}
+
+# Demonstrate that nested FULL JOINs and USING clauses work
+#
+reset_db
+load_static_extension db series
+do_execsql_test join8-3000 {
+  CREATE TABLE t1(id INTEGER PRIMARY KEY, a INT);
+  CREATE TABLE t2(id INTEGER PRIMARY KEY, b INT);
+  CREATE TABLE t3(id INTEGER PRIMARY KEY, c INT);
+  CREATE TABLE t4(id INTEGER PRIMARY KEY, d INT);
+  CREATE TABLE t5(id INTEGER PRIMARY KEY, e INT);
+  CREATE TABLE t6(id INTEGER PRIMARY KEY, f INT);
+  CREATE TABLE t7(id INTEGER PRIMARY KEY, g INT);
+  CREATE TABLE t8(id INTEGER PRIMARY KEY, h INT);
+  INSERT INTO t1 SELECT value, 1 FROM generate_series(1,256) WHERE value & 1;
+  INSERT INTO t2 SELECT value, 1 FROM generate_series(1,256) WHERE value & 2;
+  INSERT INTO t3 SELECT value, 1 FROM generate_series(1,256) WHERE value & 4;
+  INSERT INTO t4 SELECT value, 1 FROM generate_series(1,256) WHERE value & 8;
+  INSERT INTO t5 SELECT value, 1 FROM generate_series(1,256) WHERE value & 16;
+  INSERT INTO t6 SELECT value, 1 FROM generate_series(1,256) WHERE value & 32;
+  INSERT INTO t7 SELECT value, 1 FROM generate_series(1,256) WHERE value & 64;
+  INSERT INTO t8 SELECT value, 1 FROM generate_series(1,256) WHERE value & 128;
+  CREATE TABLE t9 AS
+    SELECT id, h, g, f, e, d, c, b, a
+      FROM t1
+      NATURAL FULL JOIN t2
+      NATURAL FULL JOIN t3
+      NATURAL FULL JOIN t4
+      NATURAL FULL JOIN t5
+      NATURAL FULL JOIN t6
+      NATURAL FULL JOIN t7
+      NATURAL FULL JOIN t8;
+} {}
+do_execsql_test join8-3010 {
+  SELECT count(*) FROM t9;
+} {255}
+do_execsql_test join8-3020 {
+  SELECT id, count(*) FROM t9 GROUP BY id HAVING count(*)!=1;
+} {}
+do_execsql_test join8-3030 {
+  UPDATE t9 SET a=0 WHERE a IS NULL;
+  UPDATE t9 SET b=0 WHERE b IS NULL;
+  UPDATE t9 SET c=0 WHERE c IS NULL;
+  UPDATE t9 SET d=0 WHERE d IS NULL;
+  UPDATE t9 SET e=0 WHERE e IS NULL;
+  UPDATE t9 SET f=0 WHERE f IS NULL;
+  UPDATE t9 SET g=0 WHERE g IS NULL;
+  UPDATE t9 SET h=0 WHERE h IS NULL;
+  SELECT count(*) FROM t9 WHERE id=128*h+64*g+32*f+16*e+8*d+4*c+2*b+a;
+} {255}
+do_execsql_test join8-3040 {
+  SELECT * FROM t9 WHERE id<>128*h+64*g+32*f+16*e+8*d+4*c+2*b+a;
+} {}
+
+# 2022-04-21 dbsqlfuzz find
+#
+reset_db
+do_execsql_test join8-4000 {
+  CREATE TABLE t1(x INTEGER PRIMARY KEY, a, b);
+  INSERT INTO t1 VALUES(1,5555,4);
+  CREATE INDEX i1a ON t1(a);
+  CREATE INDEX i1b ON t1(b);
+  SELECT a FROM t1 NATURAL RIGHT JOIN t1 WHERE a=5555 OR (1,b)==(SELECT 2 IN (2,2),4);
+} {5555}
+
+# 2022-04-23 dbsqlfuzz c7ee5500e3abddec3557016de777713b80c790d3
+# Escape from the right-join body subroutine via the ORDER BY LIMIT optimization.
+#
+reset_db
+db null -
+do_catchsql_test join8-5000 {
+  CREATE TABLE t1(x);
+  INSERT INTO t1(x) VALUES(NULL),(NULL);
+  CREATE TABLE t2(c, d);
+  INSERT INTO t2(c,d) SELECT x, x FROM t1;
+  CREATE INDEX t2dc ON t2(d, c);
+  SELECT (SELECT c FROM sqlite_temp_schema FULL JOIN t2 ON d IN (1,2,3) ORDER BY d) AS x FROM t1;
+} {0 {- -}}
+
+# 2022-04-29 dbsqlfuzz 19f1102a70cf966ab249de56d944fc20dbebcfcf
+# Verification of testtag-20230227b and testtag-20230227c
+#
+reset_db
+do_execsql_test join8-6000 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b TEXT, c TEXT, d REAL);
+  INSERT INTO t1 VALUES(1,'A','aa',2.5);
+  SELECT * FROM t1 AS t2 NATURAL RIGHT JOIN t1 AS t3
+   WHERE (a,b) IN (SELECT rowid, b FROM t1);
+} {1 A aa 2.5}
+do_execsql_test join8-6010 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a INT PRIMARY KEY, b TEXT, c TEXT, d INT) WITHOUT ROWID;
+  INSERT INTO t1 VALUES(15,'xray','baker',42);
+  SELECT value, t1.* FROM json_each('7') NATURAL RIGHT JOIN t1
+   WHERE (a,b) IN (SELECT a, b FROM t1);
+} {7 15 xray baker 42}
+do_execsql_test join8-6020 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY,b);
+  INSERT INTO t1 VALUES(0,NULL),(1,2);
+  SELECT value, t1.* FROM json_each('17') NATURAL RIGHT JOIN t1
+   WHERE (a,b) IN (SELECT rowid, b FROM t1);
+} {17 1 2}
+do_execsql_test join8-6021 {
+  SELECT value, t1.* FROM json_each('null') NATURAL RIGHT JOIN t1
+   WHERE (a,b) IN (SELECT rowid, b FROM t1);
+} {{} 1 2}
+do_execsql_test join8-6022 {
+  CREATE TABLE a(key TEXT);
+  INSERT INTO a(key) VALUES('a'),('b');
+  SELECT quote(a.key), b.value
+    FROM a RIGHT JOIN json_each('["a","c"]') AS b ON a.key=b.value;
+} {'a' a NULL c}
+
+# Bloom filter usage by RIGHT and FULL JOIN
+#
+reset_db
+do_execsql_test join8-7000 {
+CREATE TABLE t1(a INT, b INT, c INT, d INT);
+  WITH RECURSIVE c(x) AS (VALUES(0) UNION ALL SELECT x+1 FROM c WHERE x<10)
+    INSERT INTO t1(a,b,c,d) SELECT x, x+100, x+200, x+300 FROM c;
+  CREATE TABLE t2(b INT, x INT);
+  INSERT INTO t2(b,x) SELECT b, a FROM t1 WHERE a%2=0;
+  CREATE INDEX t2b ON t2(b);
+  CREATE TABLE t3(c INT, y INT);
+  INSERT INTO t3(c,y) SELECT c, a FROM t1 WHERE a%3=0;
+  CREATE INDEX t3c ON t3(c);
+  CREATE TABLE t4(d INT, z INT);
+  INSERT INTO t4(d,z) SELECT d, a FROM t1 WHERE a%5=0;
+  CREATE INDEX t4d ON t4(d);
+  INSERT INTO t1(a,b,c,d) VALUES
+    (96,NULL,296,396),
+    (97,197,NULL,397),
+    (98,198,298,NULL),
+    (99,NULL,NULL,NULL);
+  ANALYZE sqlite_schema;
+  INSERT INTO sqlite_stat1 VALUES('t4','t4d','20 1');
+  INSERT INTO sqlite_stat1 VALUES('t3','t3c','32 1');
+  INSERT INTO sqlite_stat1 VALUES('t2','t2b','48 1');
+  INSERT INTO sqlite_stat1 VALUES('t1',NULL,'100');
+  ANALYZE sqlite_schema;
+} {}
+db null -
+do_execsql_test join8-7010 {
+  WITH t0 AS MATERIALIZED (
+    SELECT t1.*, t2.*, t3.*
+      FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+        RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  )
+  SELECT * FROM t0 FULL JOIN t4 ON t0.a=t4.d AND t4.z>0
+   ORDER BY coalesce(t0.a, t0.y+200, t4.d);
+} {
+  6  106  206  306  106  6  206  6    -   -
+  -    -    -    -    -  -  200  0    -   -
+  -    -    -    -    -  -  203  3    -   -
+  -    -    -    -    -  -  209  9    -   -
+  -    -    -    -    -  -    -  -  300   0
+  -    -    -    -    -  -    -  -  305   5
+  -    -    -    -    -  -    -  -  310  10
+}
+
+# EVIDENCE-OF: R-33754-02880 you can say "LEFT RIGHT JOIN" which is the
+# same as "FULL JOIN".
+do_execsql_test join8-7011 {
+  WITH t0 AS MATERIALIZED (
+    SELECT t1.*, t2.*, t3.*
+      FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+        RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  )
+  SELECT * FROM t0 LEFT RIGHT JOIN t4 ON t0.a=t4.d AND t4.z>0
+   ORDER BY coalesce(t0.a, t0.y+200, t4.d);
+} {
+  6  106  206  306  106  6  206  6    -   -
+  -    -    -    -    -  -  200  0    -   -
+  -    -    -    -    -  -  203  3    -   -
+  -    -    -    -    -  -  209  9    -   -
+  -    -    -    -    -  -    -  -  300   0
+  -    -    -    -    -  -    -  -  305   5
+  -    -    -    -    -  -    -  -  310  10
+}
+
+do_execsql_test join8-7020 {
+  EXPLAIN QUERY PLAN
+  WITH t0 AS MATERIALIZED (
+    SELECT t1.*, t2.*, t3.*
+      FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+        RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  )
+  SELECT * FROM t0 FULL JOIN t4 ON t0.a=t4.d AND t4.z>0
+   ORDER BY coalesce(t0.a, t0.y+200, t4.d);
+} {/.*BLOOM FILTER ON t2.*BLOOM FILTER ON t3.*/}
+
+# 2022-05-12 Difference with PG found (by Dan) while exploring
+# https://sqlite.org/forum/forumpost/677a0ab93fcd9ccd
+#
+reset_db
+do_execsql_test join8-8000 {
+  CREATE TABLE t1(a INT, b INT);
+  CREATE TABLE t2(c INT, d INT);
+  CREATE TABLE t3(e INT, f INT);
+  INSERT INTO t1 VALUES(1, 2);
+  INSERT INTO t2 VALUES(3, 4);
+  INSERT INTO t3 VALUES(5, 6);
+} {}
+do_execsql_test join8-8010 {
+  SELECT *
+    FROM t3 LEFT JOIN t2 ON true
+            JOIN t1 ON (t3.e IS t2.c);
+} {}
+do_execsql_test join8-8020 {
+  SELECT *
+    FROM t3 LEFT JOIN t2 ON true
+            JOIN t1 ON (t3.e IS NOT DISTINCT FROM t2.c);
+} {}
+
+# 2022-05-13 The idea of reusing subquery cursors does not
+# work, if the cursors are used both for scanning and lookups.
+#
+reset_db
+db null -
+do_execsql_test join8-9000 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b TEXT, c TEXT, d REAL);
+  INSERT INTO t1 VALUES(1,'E','bb',NULL),(2,NULL,NULL,NULL);
+  SELECT * FROM t1 NATURAL RIGHT JOIN t1 AS t2 WHERE (a,b) IN (SELECT a+0, b FROM t1);
+} {1 E bb -}
+
+# 2022-05-14 https://sqlite.org/forum/forumpost/c06b10ad7e
+#
+reset_db
+db null -
+do_execsql_test join8-10000 {
+  CREATE TABLE t1(c0 INT UNIQUE);
+  CREATE TABLE t2(c0);
+  CREATE TABLE t2i(c0 INT);
+  CREATE TABLE t3(c0 INT);
+  INSERT INTO t1 VALUES(1);
+  INSERT INTO t2 VALUES(2);
+  INSERT INTO t2i VALUES(2);
+  INSERT INTO t3 VALUES(3);
+} {}
+do_execsql_test join8-10010 {
+  SELECT DISTINCT t1.c0, t3.c0
+    FROM t2 NATURAL JOIN t1 RIGHT JOIN t3 ON t1.c0;
+} {- 3}
+do_execsql_test join8-10020 {
+  SELECT t1.c0, t3.c0
+    FROM t2 NATURAL JOIN t1 RIGHT JOIN t3 ON t1.c0;
+} {- 3}
+do_execsql_test join8-10030 {
+  SELECT DISTINCT t1.c0, t3.c0
+    FROM t2 NATURAL CROSS JOIN t1 RIGHT JOIN t3 ON t1.c0;
+} {- 3}
+do_execsql_test join8-10040 {
+  SELECT t1.c0, t3.c0
+    FROM t1 NATURAL CROSS JOIN t2 RIGHT JOIN t3 ON t1.c0;
+} {- 3}
+do_execsql_test join8-10050 {
+  SELECT DISTINCT t1.c0, t3.c0
+    FROM t2i NATURAL JOIN t1 RIGHT JOIN t3 ON t1.c0;
+} {- 3}
+do_execsql_test join8-10060 {
+  SELECT DISTINCT +t1.c0, t3.c0
+    FROM t2 NATURAL JOIN t1 RIGHT JOIN t3 ON t1.c0;
+} {- 3}
+do_execsql_test join8-10070 {
+  SELECT DISTINCT +t1.c0, t3.c0
+    FROM t1 NATURAL CROSS JOIN t2 RIGHT JOIN t3 ON t1.c0;
+} {- 3}
+do_execsql_test join8-10080 {
+  SELECT DISTINCT t1.c0, t3.c0
+    FROM t2 NATURAL JOIN t1 RIGHT JOIN t3 ON t1.c0<>0;
+} {- 3}
+
+# 2022-05-14
+# index-on-expr scan on a RIGHT JOIN
+# dbsqlfuzz 39ee60004ff027a9e2846cf76e02cd5ac0953739
+#
+reset_db
+db null -
+do_execsql_test join8-11000 {
+  CREATE TABLE t1(a);
+  CREATE TABLE t2(b);
+  INSERT INTO t2 VALUES(0),(1),(2);
+  SELECT * FROM t1 RIGHT JOIN t2 ON (a=b) WHERE 99+(b+1)!=99;
+} {- 0 - 1 - 2}
+do_execsql_test join8-11010 {
+  CREATE INDEX t2b ON t2(b+1) WHERE b IS NOT NULL;
+  SELECT * FROM t1 RIGHT JOIN t2 ON (a=b) WHERE 99+(b+1)!=99;
+} {- 0 - 1 - 2}
+do_execsql_test join8-11020 {
+  DROP TABLE t1;
+  DROP TABLE t2;
+  CREATE TABLE t1(a);
+  CREATE TABLE t2(b, c, d);
+  INSERT INTO t2 VALUES(1, 3, 'not-4');
+  SELECT b, d FROM t1 RIGHT JOIN t2 WHERE (b+0)=1 AND d!=4;
+} {1 not-4}
+do_execsql_test join8-11030 {
+  CREATE INDEX i2 ON t2((b+0), d);
+  SELECT b, d FROM t1 RIGHT JOIN t2 WHERE (b+0)=1 AND d!=4;
+} {1 not-4}
+do_execsql_test join8-11040 {
+  DROP INDEX i2;
+  CREATE INDEX i2 ON t2((b+0), d) WHERE d IS NOT NULL;
+  SELECT b, d FROM t1 RIGHT JOIN t2 WHERE (b+0)=1 AND d!=4;
+} {1 not-4}
+
+# 2022-05-23
+# NATURAL JOIN name resolution is more forgiving with LEFT JOIN
+# https://sqlite.org/forum/forumpost/e90a8e6e6f
+#
+reset_db
+db null -
+do_execsql_test join8-12000 {
+  CREATE TABLE t1(a INT);  INSERT INTO t1 VALUES(0),(1);
+  CREATE TABLE t2(a INT);  INSERT INTO t2 VALUES(0),(2);
+  CREATE TABLE t3(a INT);  INSERT INTO t3 VALUES(0),(3);
+} {}
+do_catchsql_test join8-12010 {
+  SELECT * FROM t1 RIGHT JOIN t2 ON t2.a<>0 NATURAL RIGHT JOIN t3;
+} {1 {ambiguous reference to a in USING()}}
+do_catchsql_test join8-12020 {
+  SELECT * FROM t1 RIGHT JOIN t2 ON t2.a<>0 NATURAL LEFT JOIN t3;
+} {1 {ambiguous reference to a in USING()}}
+do_catchsql_test join8-12030 {
+  SELECT * FROM t1 LEFT JOIN t2 ON t2.a<>0 NATURAL RIGHT JOIN t3;
+} {1 {ambiguous reference to a in USING()}}
+
+# The following query should probably also return the same error as the
+# previous three cases.  However, historical versions of SQLite have always
+# let it pass.  We will not "fix" this, since to do so might break legacy
+# applications.
+#
+do_catchsql_test join8-12040 {
+  SELECT * FROM t1 LEFT JOIN t2 ON t2.a<>0 NATURAL LEFT JOIN t3;
+} {0 {0 2 1 2}}
+
+# 2022-05-24
+# https://sqlite.org/forum/forumpost/687b0bf563a1d4f1
+#
+reset_db
+do_execsql_test join8-13000 {
+  CREATE TABLE t0(t TEXT, u TEXT);  INSERT INTO t0 VALUES('t', 'u');
+  CREATE TABLE t1(v TEXT, w TEXT);  INSERT INTO t1 VALUES('v', 'w');
+  CREATE TABLE t2(x TEXT, y TEXT);  INSERT INTO t2 VALUES('x', 'y');
+  SELECT * FROM t0 JOIN t1 ON (t2.x NOTNULL) LEFT JOIN t2 ON false;
+  SELECT * FROM t0 JOIN t1 ON (t2.x NOTNULL) LEFT JOIN t2 ON false
+   WHERE t2.y ISNULL;
+} {}
+
+# 2022-05-25
+# https://sqlite.org/forum/forumpost/5cfe08eed6
+#
+reset_db
+do_execsql_test join8-14000 {
+  CREATE TABLE t0(a TEXT, b TEXT, c TEXT);
+  CREATE TABLE t1(a TEXT);
+  INSERT INTO t1 VALUES('1');
+  CREATE VIEW v0 AS SELECT 'xyz' AS d;
+  SELECT * FROM v0 RIGHT JOIN t1 ON t1.a<>'' INNER JOIN t0 ON t0.c<>'';
+  SELECT * FROM v0 RIGHT JOIN t1 ON t1.a<>'' INNER JOIN t0 ON t0.c<>'' WHERE b ISNULL;
+} {}
+do_execsql_test join8-14010 {
+  CREATE TABLE y0(a INT);
+  CREATE TABLE y1(b INT); INSERT INTO y1 VALUES(1), (2);
+  CREATE TABLE y2(c INT); INSERT INTO y2 VALUES(3), (4);
+} {}
+db null -
+do_execsql_test join8-14020 {
+  SELECT * FROM y0 RIGHT JOIN y1 ON true INNER JOIN y2 ON true WHERE y2.c!=99 AND y2.c!=98;
+} {
+  - 1 3
+  - 1 4
+  - 2 3
+  - 2 4
+}
+
+# 2022-05-30
+# https://sqlite.org/forum/forumpost/3902c7b833
+#
+reset_db
+do_execsql_test join8-15000 {
+  CREATE TABLE t1(x INT);
+  CREATE TABLE t2(y INT);
+  CREATE TABLE t3(z INT);
+  INSERT INTO t1 VALUES(10);
+  INSERT INTO t3 VALUES(20),(30);
+}
+do_execsql_test join8-15010 {
+  SELECT * FROM t1 LEFT JOIN t2 ON true JOIN t3 ON t2.y IS NOT NULL;
+} {}
+do_execsql_test join8-15020 {
+  SELECT * FROM t1 LEFT JOIN t2 ON true JOIN t3 ON t2.y IS NOT NULL
+   WHERE (t3.z!=400 AND t3.z!=500 AND t3.z!=600);
+} {}
+do_execsql_test join8-15100 {
+  PRAGMA automatic_index = 0;
+  CREATE TABLE t4(x TEXT);
+  CREATE TABLE t5(y TEXT);
+  CREATE TABLE t6(z TEXT);
+  INSERT INTO t4 VALUES('a'), ('b');
+  INSERT INTO t5 VALUES('b'), ('c');
+  INSERT INTO t6 VALUES('a'), ('d');
+} {}
+db null -
+do_execsql_test join8-15110 {
+  SELECT * FROM t4 LEFT JOIN t5 ON x=y LEFT JOIN t6 ON (x=z) ORDER BY +x;
+} {a - a b b -}
+do_execsql_test join8-15120 {
+  SELECT * FROM t4 LEFT JOIN t5 ON x=y LEFT JOIN t6 ON (x=z)
+   WHERE t5.y!='x' AND t4.x!='x';
+} {b b -}
+
+# 2022-05-31
+# https://sqlite.org/forum/forumpost/c2554d560b
+reset_db
+do_execsql_test join8-16000 {
+  CREATE TABLE t1(a TEXT);
+  CREATE TABLE t2(b TEXT);
+  CREATE TABLE t3(c TEXT);
+  INSERT INTO t2(b) VALUES ('x');
+  INSERT INTO t3(c) VALUES ('y'), ('z');
+} {}
+db null -
+do_execsql_test join8-16010 {
+  SELECT * FROM t1 RIGHT JOIN t2 ON true LEFT JOIN t3 ON a<>'';
+} {- x -}
+do_execsql_test join8-16020 {
+  SELECT * FROM t1 RIGHT JOIN t2 ON true LEFT JOIN t3 ON a<>'' WHERE c IS NULL;
+} {- x -}
+do_execsql_test join8-16020 {
+  SELECT * FROM t1 RIGHT JOIN t2 ON true JOIN t3 ON a<>'' WHERE c IS NULL;
+} {}
+do_execsql_test join8-16030 {
+  SELECT * FROM t1 RIGHT JOIN t2 ON true JOIN t3 ON a<>'';
+} {}
+do_execsql_test join8-16040 {
+  SELECT * FROM t1 RIGHT JOIN t2 ON true LEFT JOIN t3 ON a<>'' WHERE c<>'';
+} {}
+do_execsql_test join8-16050 {
+  SELECT * FROM t1 RIGHT JOIN t2 ON true LEFT JOIN t3 ON a<>'' WHERE c IS NOT NULL;
+} {}
+do_execsql_test join8-16060 {
+  SELECT * FROM t1 RIGHT JOIN t2 ON true JOIN t3 ON a<>'' WHERE c<>'';
+} {}
+do_execsql_test join8-16070 {
+  SELECT * FROM t1 RIGHT JOIN t2 ON true JOIN t3 ON a<>'' WHERE c IS NOT NULL;
+} {}
+
+# 2022-06-01
+# https://sqlite.org/forum/forumpost/087de2d9ec
+#
+reset_db
+do_execsql_test join8-17000 {
+  CREATE TABLE t1(id INTEGER PRIMARY KEY, x INT, y INT);
+  CREATE TABLE t2(z INT);
+  INSERT INTO t1(id,x,y) VALUES(1, 0, 0);
+} {}
+db null NULL
+do_execsql_test join8-17010 {
+  SELECT * FROM t2 RIGHT JOIN t1 ON true;
+} {NULL 1 0 0}
+do_execsql_test join8-17020 {
+  SELECT 99=id AND 0=y AS "truth" FROM t2 RIGHT JOIN t1 ON true;
+} {0}
+do_execsql_test join8-17030 {
+  SELECT (99, 0)==(id, y) AS "truth" FROM t2 RIGHT JOIN t1;
+} {0}
+do_execsql_test join8-17040 {
+  SELECT * FROM t2 RIGHT JOIN t1 WHERE 99=id AND 0=y;
+} {}
+do_execsql_test join8-17041 {
+  SELECT * FROM t2 RIGHT JOIN t1 WHERE 99=+id AND 0=y;
+} {}
+do_execsql_test join8-17050 {
+  SELECT * FROM t2 RIGHT JOIN t1 WHERE (99, 0)==(id,y);
+} {}
+do_execsql_test join8-17051 {
+  SELECT * FROM t2 RIGHT JOIN t1 WHERE (99, 0)==(+id,y);
+} {}
+do_execsql_test join8-17060 {
+  SELECT * FROM t2 RIGHT JOIN t1 WHERE 1=id AND 0=y;
+} {NULL 1 0 0}
+do_execsql_test join8-17061 {
+  SELECT * FROM t2 RIGHT JOIN t1 WHERE 1=+id AND 0=y;
+} {NULL 1 0 0}
+do_execsql_test join8-17070 {
+  SELECT * FROM t2 RIGHT JOIN t1 WHERE (1, 0)==(id,y);
+} {NULL 1 0 0}
+do_execsql_test join8-17071 {
+  SELECT * FROM t2 RIGHT JOIN t1 WHERE (1, 0)==(+id,y);
+} {NULL 1 0 0}
+do_execsql_test join8-17080 {
+  CREATE TABLE t3(a INTEGER PRIMARY KEY, b INT);
+  CREATE TABLE t4(x INT, y INT);
+  INSERT INTO t3(a,b) VALUES(1, 3);
+} {}
+do_execsql_test join8-17090 {
+  SELECT t3.a FROM t4 RIGHT JOIN t3 ON (x=a) WHERE (b, 4)=(SELECT 3, 4);
+} {1}
+do_execsql_test join8-17091 {
+  SELECT t3.a FROM t4 RIGHT JOIN t3 ON (x=a) WHERE (b, 4) IS (SELECT 3, 4);
+} {1}
+
+# 2022-06-06
+# https://sqlite.org/forum/forumpost/206d99a16dd9212f
+# tag-20191211-001
+#
+reset_db
+do_execsql_test join8-18000 {
+  CREATE TABLE t1(a BOOLEAN); INSERT INTO t1 VALUES (false);
+  CREATE TABLE t2(x INT);     INSERT INTO t2 VALUES (0);
+  SELECT *, x NOTNULL, (x NOTNULL)=a FROM t2 RIGHT JOIN t1 ON true WHERE (x NOTNULL)=a;
+} {}
+do_execsql_test join8-18010 {
+  CREATE INDEX t1a ON t1(a);
+  SELECT *, x NOTNULL, (x NOTNULL)=a FROM t2 RIGHT JOIN t1 ON true WHERE (x NOTNULL)=a;
+} {}
+
+do_execsql_test join8-18020 {
+  CREATE TABLE t3(z);
+  INSERT INTO t3 VALUES('t3value');
+  SELECT *, x NOTNULL, (x NOTNULL)=a FROM t2 RIGHT JOIN t1 ON true INNER JOIN t3 ON (x NOTNULL)=a;
+} {}
+
+ifcapable rtree {
+  do_execsql_test join8-18030 {
+    CREATE VIRTUAL TABLE rtree1 USING rtree(a, x1, x2);
+    INSERT INTO rtree1 VALUES(0, 0, 0);
+  }
+  do_execsql_test join8-18040 {
+    SELECT *, x NOTNULL, (x NOTNULL)=a FROM t2 
+      RIGHT JOIN rtree1 ON true INNER JOIN t3 ON (x NOTNULL)=+a;
+  } {}
+  do_execsql_test join8-18050 {
+    SELECT *, x NOTNULL, (x NOTNULL)=a FROM t2 
+      RIGHT JOIN rtree1 ON true INNER JOIN t3 ON (x NOTNULL)=a;
+  } {}
+}
+
+
+reset_db
+do_execsql_test join8-19000 {
+  CREATE TABLE t1(a INT);
+  CREATE TABLE t2(b INT, c INT);
+  CREATE TABLE t3(d INT);
+
+  INSERT INTO t1 VALUES(10);
+  INSERT INTO t2 VALUES(50,51);
+  INSERT INTO t3 VALUES(299);
+
+  CREATE INDEX t2b ON t2( (b IS NOT NULL) );
+}
+
+do_execsql_test join8-19010 {
+  SELECT * FROM t1 LEFT JOIN t2 ON true INNER JOIN t3 ON (b IS NOT NULL)=0;
+}
+
+# 2022-06-07
+# https://sqlite.org/forum/forumpost/323f86cc30
+reset_db
+do_execsql_test join8-20000 {
+  CREATE TABLE t1(x TEXT);
+  INSERT INTO t1(x) VALUES('aaa');
+  CREATE VIEW v0(y) AS SELECT x FROM t1;
+  CREATE TABLE t2(z TEXT);
+} {}
+db null -
+do_execsql_test join8-20010 {
+  SELECT * FROM t2 JOIN v0 ON z<>'bbb' RIGHT JOIN t1 ON z<>'ccc';
+} {- - aaa}
+do_execsql_test join8-20020 {
+  SELECT * FROM t2 JOIN v0 ON z<>'bbb' RIGHT JOIN t1 ON z<>'ccc' ORDER BY z;
+} {- - aaa}
+do_execsql_test join8-20030 {
+  SELECT 99 as "m" FROM t2 JOIN v0 ON z<>'bbb' RIGHT JOIN t1 ON z<>'ccc';
+} {99}
+do_execsql_test join8-20040 {
+  SELECT 99 as "m" FROM t2 JOIN v0 ON z<>'bbb' RIGHT JOIN t1 ON z<>'ccc' ORDER BY z;
+} {99}
+do_execsql_test join8-20050 {
+  SELECT count(*)
+    FROM (SELECT 99 as "m" FROM t2 JOIN v0 ON z<>'' RIGHT JOIN t1 ON z<>'') AS "t3";
+} {1}
+do_execsql_test join8-20060 {
+  SELECT count(*) 
+    FROM (SELECT 99 as "m" FROM t2 JOIN v0 ON z<>'' RIGHT JOIN t1 ON z<>'' ORDER BY z) AS "t3";
+} {1}
+
+# 2022-06-10
+# https://sqlite.org/forum/forumpost/8e4c352937e82929
+#
+# Do not allow constant propagation between ON and WHERE clause terms.
+# (Updated 2022-06-20) See also https://sqlite.org/forum/forumpost/57bdf2217d
+#
+reset_db
+do_execsql_test join8-21000 {
+  CREATE TABLE t1(a INT,b BOOLEAN);
+  CREATE TABLE t2(c INT);  INSERT INTO t2 VALUES(NULL);
+  CREATE TABLE t3(d INT);
+}
+do_execsql_test join8-21010 {
+  SELECT (b IS TRUE) FROM t1 JOIN t3 ON (b=TRUE) RIGHT JOIN t2 ON TRUE;
+} {0}
+do_execsql_test join8-22020 {
+  SELECT * FROM t1 JOIN t3 ON (b=TRUE) RIGHT JOIN t2 ON TRUE WHERE (b IS TRUE);
+} {}
+do_execsql_test join8-22030 {
+  DROP TABLE t1;
+  DROP TABLE t2;
+  DROP TABLE t3;
+  CREATE TABLE t1(a INT);
+  CREATE TABLE t2(b INT);
+  CREATE TABLE t3(c INTEGER PRIMARY KEY, d INT);
+  CREATE INDEX t3d ON t3(d);
+  INSERT INTO t3 VALUES(0, 0);
+}
+do_catchsql_test join8-22031 {
+  SELECT * FROM t1 JOIN t2 ON d>b RIGHT JOIN t3 ON true WHERE +d = 0;
+} {1 {ON clause references tables to its right}}
+do_catchsql_test join8-22040 {
+  SELECT * FROM t1 JOIN t2 ON d>b RIGHT JOIN t3 ON true WHERE d = 0;
+} {1 {ON clause references tables to its right}}
+
+
+# 2022-06-10
+# https://sqlite.org/forum/forumpost/51e6959f61
+#
+# Restrictions on the usage of WHERE clause constraints by joins that are
+# involved with a RIGHT JOIN must also be applied to automatic indexes.
+#
+reset_db
+do_execsql_test join8-22000 {
+  CREATE TABLE t1(a INT);
+  CREATE TABLE t2(b INT);
+  CREATE TABLE t3(c TEXT);  INSERT INTO t3 VALUES('x');
+  CREATE TABLE t4(d TEXT);  INSERT INTO t4 VALUES('y');
+  SELECT 99
+    FROM t1
+         LEFT JOIN t2 ON true
+         RIGHT JOIN t3 ON true
+         RIGHT JOIN t4 ON true
+   WHERE a=b;
+} {}
+
+# 2022-06-13
+# https://sqlite.org/forum/forumpost/b40696f501
+#
+# This optimization that converts "x ISNULL" into "FALSE" when column "x" has a
+# NOT NULL constraint is too aggresive if the query contains RIGHT JOIN.
+#
+reset_db
+db null -
+do_execsql_test join8-23000 {
+  CREATE TABLE t1(a TEXT);
+  INSERT INTO t1 VALUES('c');
+  CREATE TABLE t2(b TEXT, c TEXT NOT NULL);
+  INSERT INTO t2 VALUES('a', 'b');
+  CREATE TABLE t3(d TEXT);
+  INSERT INTO t3 VALUES('x');
+  CREATE TABLE t4(e TEXT);
+  INSERT INTO t4 VALUES('y');
+}
+do_execsql_test join8-23010 {
+  SELECT *
+    FROM t1
+         LEFT JOIN t2 ON TRUE
+         JOIN t3 ON c=''
+         RIGHT JOIN t4 ON b='';
+} {- - - - y}
+do_execsql_test join8-23020 {
+  SELECT *
+    FROM t1
+         LEFT JOIN t2 ON TRUE
+         JOIN t3 ON c=''
+         RIGHT JOIN t4 ON b=''
+   WHERE d ISNULL
+} {- - - - y}
+
+# 2022-06-14
+# dbsqlfuzz 2f3101834d14325a976f601b9267a0fd323d6bbd
+#
+# When the OP_NullRow opcode creates a new cursor, it must
+# set the cursor to no-reuse so that an OP_OpenEphemeral in
+# a subroutine does not try to reuse it.
+#
+reset_db
+db null -
+do_execsql_test join8-24000 {
+  CREATE TABLE t4(b INT, c INT);
+  CREATE TABLE t5(a INT, f INT);
+  INSERT INTO t5 VALUES(1,2);
+  WITH t7(x, y) AS (SELECT 100, 200 FROM t5)
+    SELECT * FROM t4 JOIN t7 ON true RIGHT JOIN (SELECT y AS z FROM t7) AS t6 ON (x=z);
+} {- - - - 200}
+
+# 2022-06-20
+# forum/forumpost/6650cd40b5634f35
+#
+reset_db
+do_execsql_test join8-25000 {
+  CREATE TABLE t1(a1 INT);
+  CREATE TABLE t2(b2 INT);
+  CREATE TABLE t3(c3 INT, d3 INT UNIQUE);
+  CREATE TABLE t4(e4 INT, f4 TEXT);
+  INSERT INTO t3(c3, d3) VALUES (2, 1);
+  INSERT INTO t4(f4) VALUES ('x');
+  CREATE INDEX i0 ON t3(c3) WHERE d3 ISNULL;
+  ANALYZE main;
+}
+db null -
+do_execsql_test join8-25010 {
+  SELECT * FROM t1 LEFT JOIN t2 ON true JOIN t3 ON (b2 IN (a1)) FULL JOIN t4 ON true;
+} {- - - - - x}
+do_execsql_test join8-25020 {
+  SELECT 1 FROM t1 LEFT JOIN t2 ON true JOIN t3 ON (b2 IN (a1)) FULL JOIN t4 ON true;
+} {1}
+
+# 2022-07-13
+# forum/forumpost/174afeae57
+#
+reset_db
+db null -
+do_execsql_test join8-26000 {
+  CREATE TABLE t1(a INT);
+  CREATE TABLE t2(b INT, c INT);
+  CREATE VIEW t3(d) AS SELECT NULL FROM t2 FULL OUTER JOIN t1 ON c=a UNION ALL SELECT b FROM t2;
+  INSERT INTO t1(a) VALUES (NULL);
+  INSERT INTO t2(b, c) VALUES (99, NULL);
+  SELECT DISTINCT b, c, d FROM t2, t3 WHERE b<>0
+   UNION SELECT DISTINCT b, c, d FROM t2, t3 WHERE b ISNULL;
+} {99 - - 99 - 99}
+
+finish_test
diff --git a/test/join9.test b/test/join9.test
new file mode 100644
index 0000000000000000000000000000000000000000..e547d4ce7084beb5e63a2f388157f40012f18aa4
--- /dev/null
+++ b/test/join9.test
@@ -0,0 +1,565 @@
+# 2022-04-16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests for RIGHT and FULL OUTER JOINs.
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+foreach {id schema} {
+  1 {
+    CREATE TABLE t3(id INTEGER PRIMARY KEY, w TEXT);
+    CREATE TABLE t4(id INTEGER PRIMARY KEY, x TEXT);
+    CREATE TABLE t5(id INTEGER PRIMARY KEY, y TEXT);
+    CREATE TABLE t6(id INTEGER PRIMARY KEY, z INT);
+    CREATE VIEW dual(dummy) AS VALUES('x');
+    INSERT INTO t3(id,w) VALUES(2,'two'),(3,'three'),(6,'six'),(7,'seven');
+    INSERT INTO t4(id,x) VALUES(2,'alice'),(4,'bob'),(6,'cindy'),(8,'dave');
+    INSERT INTO t5(id,y) VALUES(1,'red'),(2,'orange'),(3,'yellow'),(4,'green'),
+                               (5,'blue');
+    INSERT INTO t6(id,z) VALUES(3,333),(4,444),(5,555),(0,1000),(9,999);
+  }
+  2 {
+    CREATE TABLE t3(id INT PRIMARY KEY, w TEXT) WITHOUT ROWID;
+    CREATE TABLE t4(id INT PRIMARY KEY, x TEXT) WITHOUT ROWID;
+    CREATE TABLE t5(id INT PRIMARY KEY, y TEXT) WITHOUT ROWID;
+    CREATE TABLE t6(id INT PRIMARY KEY, z INT) WITHOUT ROWID;
+    CREATE TABLE dual(dummy TEXT);
+    INSERT INTO dual(dummy) VALUES('x');
+    INSERT INTO t3(id,w) VALUES(2,'two'),(3,'three'),(6,'six'),(7,'seven');
+    INSERT INTO t4(id,x) VALUES(2,'alice'),(4,'bob'),(6,'cindy'),(8,'dave');
+    INSERT INTO t5(id,y) VALUES(1,'red'),(2,'orange'),(3,'yellow'),(4,'green'),
+                               (5,'blue');
+    INSERT INTO t6(id,z) VALUES(3,333),(4,444),(5,555),(0,1000),(9,999);
+  }
+  3 {
+    CREATE TABLE t3x(id INTEGER PRIMARY KEY, w TEXT);
+    CREATE TABLE t4x(id INTEGER PRIMARY KEY, x TEXT);
+    CREATE TABLE t5x(id INTEGER PRIMARY KEY, y TEXT);
+    CREATE TABLE t6x(id INTEGER PRIMARY KEY, z INT);
+    CREATE VIEW dual(dummy) AS VALUES('x');
+    INSERT INTO t3x(id,w) VALUES(2,'two'),(3,'three'),(6,'six'),(7,'seven');
+    INSERT INTO t4x(id,x) VALUES(2,'alice'),(4,'bob'),(6,'cindy'),(8,'dave');
+    INSERT INTO t5x(id,y) VALUES(1,'red'),(2,'orange'),(3,'yellow'),(4,'green'),
+                               (5,'blue');
+    INSERT INTO t6x(id,z) VALUES(3,333),(4,444),(5,555),(0,1000),(9,999);
+    CREATE VIEW t3 AS SELECT * FROM t3x LIMIT 1000;
+    CREATE VIEW t4 AS SELECT * FROM t4x LIMIT 1000;
+    CREATE VIEW t5 AS SELECT * FROM t5x LIMIT 1000;
+    CREATE VIEW t6 AS SELECT * FROM t6x LIMIT 1000;
+  }
+  4 {
+    CREATE TABLE t3a(id INTEGER PRIMARY KEY, w TEXT);
+    CREATE TABLE t3b(id INTEGER PRIMARY KEY, w TEXT);
+    CREATE TABLE t4a(id INTEGER PRIMARY KEY, x TEXT);
+    CREATE TABLE t4b(id INTEGER PRIMARY KEY, x TEXT);
+    CREATE TABLE t5a(id INTEGER PRIMARY KEY, y TEXT);
+    CREATE TABLE t5b(id INTEGER PRIMARY KEY, y TEXT);
+    CREATE TABLE t6a(id INTEGER PRIMARY KEY, z INT);
+    CREATE TABLE t6b(id INTEGER PRIMARY KEY, z INT);
+    CREATE VIEW dual(dummy) AS VALUES('x');
+    INSERT INTO t3a(id,w) VALUES(2,'two'),(3,'three');
+    INSERT INTO t3b(id,w) VALUES(6,'six'),(7,'seven');
+    INSERT INTO t4a(id,x) VALUES(2,'alice'),(4,'bob');
+    INSERT INTO t4b(id,x) VALUES(6,'cindy'),(8,'dave');
+    INSERT INTO t5a(id,y) VALUES(1,'red'),(2,'orange'),(3,'yellow');
+    INSERT INTO t5b(id,y) VALUES(4,'green'),(5,'blue');
+    INSERT INTO t6a(id,z) VALUES(3,333),(4,444);
+    INSERT INTO t6b(id,z) VALUES(5,555),(0,1000),(9,999);
+    CREATE VIEW t3 AS SELECT * FROM t3a UNION ALL SELECT * FROM t3b;
+    CREATE VIEW t4 AS SELECT * FROM t4a UNION ALL SELECT * FROM t4b;
+    CREATE VIEW t5 AS SELECT * FROM t5a UNION ALL SELECT * FROM t5b;
+    CREATE VIEW t6 AS SELECT * FROM t6a UNION ALL SELECT * FROM t6b;
+  }
+  5 {
+    CREATE TABLE t3a(id INTEGER PRIMARY KEY, w TEXT) WITHOUT ROWID;
+    CREATE TABLE t3b(id INTEGER PRIMARY KEY, w TEXT);
+    CREATE TABLE t4a(id INTEGER PRIMARY KEY, x TEXT) WITHOUT ROWID;
+    CREATE TABLE t4b(id INTEGER PRIMARY KEY, x TEXT) WITHOUT ROWID;
+    CREATE TABLE t5a(id INTEGER PRIMARY KEY, y TEXT);
+    CREATE TABLE t5b(id INTEGER PRIMARY KEY, y TEXT) WITHOUT ROWID;
+    CREATE TABLE t6a(id INTEGER PRIMARY KEY, z INT);
+    CREATE TABLE t6b(id INTEGER PRIMARY KEY, z INT);
+    CREATE VIEW dual(dummy) AS VALUES('x');
+    INSERT INTO t3a(id,w) VALUES(2,'two'),(3,'three');
+    INSERT INTO t3b(id,w) VALUES(6,'six'),(7,'seven');
+    INSERT INTO t4a(id,x) VALUES(2,'alice'),(4,'bob');
+    INSERT INTO t4b(id,x) VALUES(6,'cindy'),(8,'dave');
+    INSERT INTO t5a(id,y) VALUES(1,'red'),(2,'orange'),(3,'yellow');
+    INSERT INTO t5b(id,y) VALUES(4,'green'),(5,'blue');
+    INSERT INTO t6a(id,z) VALUES(3,333),(4,444);
+    INSERT INTO t6b(id,z) VALUES(5,555),(0,1000),(9,999);
+    CREATE VIEW t3 AS SELECT * FROM t3a UNION ALL SELECT * FROM t3b;
+    CREATE VIEW t4 AS SELECT * FROM t4a UNION ALL SELECT * FROM t4b LIMIT 50;
+    CREATE VIEW t5 AS SELECT * FROM t5a UNION ALL SELECT * FROM t5b LIMIT 100;
+    CREATE VIEW t6 AS SELECT * FROM t6a UNION ALL SELECT * FROM t6b;
+  }
+} {
+  reset_db
+  db nullvalue -
+  do_execsql_test join9-$id.setup $schema {}
+
+  # Verifid by PG-14 for case 1
+  do_execsql_test join9-$id.100 {
+    SELECT *, t4.id, t5.id, t6.id
+      FROM t4 NATURAL LEFT JOIN t5 NATURAL LEFT JOIN t6
+     ORDER BY 1;
+  } {
+    2   alice  orange  -    2   2   - 
+    4   bob    green   444  4   4   4 
+    6   cindy  -       -    6   -   - 
+    8   dave   -       -    8   -   - 
+  }
+
+  do_execsql_test join9-$id.101 {
+    SELECT *, t4.id, t5.id, t6.id
+      FROM t4 NATURAL LEFT JOIN t5 NATURAL LEFT JOIN t6
+     ORDER BY id;
+  } {
+    2   alice  orange  -    2   2   - 
+    4   bob    green   444  4   4   4 
+    6   cindy  -       -    6   -   - 
+    8   dave   -       -    8   -   - 
+  }
+  do_execsql_test join9-$id.102 {
+    SELECT *, t4.id, t5.id, t6.id
+      FROM t4 LEFT JOIN t5 USING(id) LEFT JOIN t6 USING(id)
+     ORDER BY id;
+  } {
+    2   alice  orange  -    2   2   - 
+    4   bob    green   444  4   4   4 
+    6   cindy  -       -    6   -   - 
+    8   dave   -       -    8   -   - 
+  }
+
+  # Verifid by PG-14 using case 1
+  do_execsql_test join9-$id.200 {
+    SELECT id, x, y, z, t4.id, t5.id, t6.id
+      FROM t5 NATURAL RIGHT JOIN t4 NATURAL LEFT JOIN t6
+     ORDER BY 1;
+  } {
+    2   alice  orange  -    2   2   - 
+    4   bob    green   444  4   4   4 
+    6   cindy  -       -    6   -   - 
+    8   dave   -       -    8   -   - 
+  }
+
+  do_execsql_test join9-$id.201 {
+    SELECT id, x, y, z, t4.id, t5.id, t6.id
+      FROM t5 NATURAL RIGHT JOIN t4 NATURAL LEFT JOIN t6
+     ORDER BY id;
+  } {
+    2   alice  orange  -    2   2   - 
+    4   bob    green   444  4   4   4 
+    6   cindy  -       -    6   -   - 
+    8   dave   -       -    8   -   - 
+  }
+
+  # Verified by PG-14 using case 1
+  do_execsql_test join9-$id.300 {
+    SELECT *, t4.id, t5.id, t6.id
+      FROM t4 NATURAL RIGHT JOIN t5 NATURAL RIGHT JOIN t6
+     ORDER BY 1;
+  } {
+    0   -    -       1000  -   -   0 
+    3   -    yellow  333   -   3   3 
+    4   bob  green   444   4   4   4 
+    5   -    blue    555   -   5   5 
+    9   -    -       999   -   -   9 
+  }
+
+  do_execsql_test join9-$id.301 {
+    SELECT *, t4.id, t5.id, t6.id
+      FROM t4 NATURAL RIGHT JOIN t5 NATURAL RIGHT JOIN t6
+     ORDER BY id;
+  } {
+    0   -    -       1000  -   -   0 
+    3   -    yellow  333   -   3   3 
+    4   bob  green   444   4   4   4 
+    5   -    blue    555   -   5   5 
+    9   -    -       999   -   -   9 
+  }
+
+  # Verified by PG-14 for case 1
+  do_execsql_test join9-$id.400 {
+    SELECT *, t4.id, t5.id, t6.id
+      FROM t4 NATURAL FULL JOIN t5 NATURAL FULL JOIN t6
+     ORDER BY 1;
+  } {
+    0    -      -       1000  -   -   0 
+    1    -      red     -     -   1   - 
+    2    alice  orange  -     2   2   - 
+    3    -      yellow  333   -   3   3 
+    4    bob    green   444   4   4   4 
+    5    -      blue    555   -   5   5 
+    6    cindy  -       -     6   -   - 
+    8    dave   -       -     8   -   - 
+    9    -      -       999   -   -   9 
+  }
+
+  do_execsql_test join9-$id.401 {
+    SELECT *, t4.id, t5.id, t6.id
+      FROM t4 NATURAL FULL JOIN t5 NATURAL FULL JOIN t6
+     ORDER BY id;
+  } {
+    0    -      -       1000  -   -   0 
+    1    -      red     -     -   1   - 
+    2    alice  orange  -     2   2   - 
+    3    -      yellow  333   -   3   3 
+    4    bob    green   444   4   4   4 
+    5    -      blue    555   -   5   5 
+    6    cindy  -       -     6   -   - 
+    8    dave   -       -     8   -   - 
+    9    -      -       999   -   -   9 
+  }
+  do_execsql_test join9-$id.402 {
+    SELECT id, x, y, z, t4.id, t5.id, t6.id
+      FROM t4 NATURAL FULL JOIN t6 NATURAL FULL JOIN t5
+     ORDER BY id;
+  } {
+    0    -      -       1000  -   -   0 
+    1    -      red     -     -   1   - 
+    2    alice  orange  -     2   2   - 
+    3    -      yellow  333   -   3   3 
+    4    bob    green   444   4   4   4 
+    5    -      blue    555   -   5   5 
+    6    cindy  -       -     6   -   - 
+    8    dave   -       -     8   -   - 
+    9    -      -       999   -   -   9 
+  }
+  do_execsql_test join9-$id.403 {
+    SELECT id, x, y, z, t4.id, t5.id, t6.id
+      FROM t5 NATURAL FULL JOIN t4 NATURAL FULL JOIN t6
+     ORDER BY id;
+  } {
+    0    -      -       1000  -   -   0 
+    1    -      red     -     -   1   - 
+    2    alice  orange  -     2   2   - 
+    3    -      yellow  333   -   3   3 
+    4    bob    green   444   4   4   4 
+    5    -      blue    555   -   5   5 
+    6    cindy  -       -     6   -   - 
+    8    dave   -       -     8   -   - 
+    9    -      -       999   -   -   9 
+  }
+  do_execsql_test join9-$id.404 {
+    SELECT id, x, y, z, t4.id, t5.id, t6.id
+      FROM t5 NATURAL FULL JOIN t6 NATURAL FULL JOIN t4
+     ORDER BY id;
+  } {
+    0    -      -       1000  -   -   0 
+    1    -      red     -     -   1   - 
+    2    alice  orange  -     2   2   - 
+    3    -      yellow  333   -   3   3 
+    4    bob    green   444   4   4   4 
+    5    -      blue    555   -   5   5 
+    6    cindy  -       -     6   -   - 
+    8    dave   -       -     8   -   - 
+    9    -      -       999   -   -   9 
+  }
+  do_execsql_test join9-$id.405 {
+    SELECT id, x, y, z, t4.id, t5.id, t6.id
+      FROM t6 NATURAL FULL JOIN t4 NATURAL FULL JOIN t5
+     ORDER BY id;
+  } {
+    0    -      -       1000  -   -   0 
+    1    -      red     -     -   1   - 
+    2    alice  orange  -     2   2   - 
+    3    -      yellow  333   -   3   3 
+    4    bob    green   444   4   4   4 
+    5    -      blue    555   -   5   5 
+    6    cindy  -       -     6   -   - 
+    8    dave   -       -     8   -   - 
+    9    -      -       999   -   -   9 
+  }
+  do_execsql_test join9-$id.406 {
+    SELECT id, x, y, z, t4.id, t5.id, t6.id
+      FROM t6 NATURAL FULL JOIN t5 NATURAL FULL JOIN t4
+     ORDER BY id;
+  } {
+    0    -      -       1000  -   -   0 
+    1    -      red     -     -   1   - 
+    2    alice  orange  -     2   2   - 
+    3    -      yellow  333   -   3   3 
+    4    bob    green   444   4   4   4 
+    5    -      blue    555   -   5   5 
+    6    cindy  -       -     6   -   - 
+    8    dave   -       -     8   -   - 
+    9    -      -       999   -   -   9 
+  }
+
+  # Verified by PG-14 using case 1
+  do_execsql_test join9-$id.500 {
+    SELECT id, w, x, y, z
+      FROM t3 FULL JOIN t4 USING(id)
+              NATURAL FULL JOIN t5
+              FULL JOIN t6 USING(id)
+      ORDER BY 1;
+  } {
+    0   -      -      -       1000
+    1   -      -      red     -   
+    2   two    alice  orange  -   
+    3   three  -      yellow  333 
+    4   -      bob    green   444 
+    5   -      -      blue    555 
+    6   six    cindy  -       -   
+    7   seven  -      -       -   
+    8   -      dave   -       -   
+    9   -      -      -       999 
+  }
+
+  # Verified by PG-14 using case 1
+  do_execsql_test join9-$id.600 {
+    SELECT id, w, x, y, z
+       FROM t3 JOIN dual AS d1 ON true
+               FULL JOIN t4 USING(id)
+               JOIN dual AS d2 ON true
+               NATURAL FULL JOIN t5
+               JOIN dual AS d3 ON true
+               FULL JOIN t6 USING(id)
+               CROSS JOIN dual AS d4
+      ORDER BY 1;
+  } {
+    0   -      -      -       1000
+    1   -      -      red     -   
+    2   two    alice  orange  -   
+    3   three  -      yellow  333 
+    4   -      bob    green   444 
+    5   -      -      blue    555 
+    6   six    cindy  -       -   
+    7   seven  -      -       -   
+    8   -      dave   -       -   
+    9   -      -      -       999 
+  }
+
+  # Verified by PG-14 using case 1
+  do_execsql_test join9-$id.700 {
+    SELECT id, w, x, y, z
+       FROM t3 JOIN dual AS d1 ON true
+               FULL JOIN t4 USING(id)
+               JOIN dual AS d2 ON true
+               NATURAL FULL JOIN t5
+               JOIN dual AS d3 ON true
+               FULL JOIN t6 USING(id)
+               CROSS JOIN dual AS d4
+      WHERE x<>'bob' OR x IS NULL
+      ORDER BY 1;
+  } {
+    0   -      -      -       1000
+    1   -      -      red     -   
+    2   two    alice  orange  -   
+    3   three  -      yellow  333 
+    5   -      -      blue    555 
+    6   six    cindy  -       -   
+    7   seven  -      -       -   
+    8   -      dave   -       -   
+    9   -      -      -       999 
+  }
+
+  # Verified by PG-14 using case 1
+  do_execsql_test join9-$id.800 {
+    WITH t7(id,a) AS MATERIALIZED (SELECT * FROM t4 WHERE false)
+    SELECT *
+      FROM t7 
+           JOIN t7 AS t7b USING(id)
+           FULL JOIN t3 USING(id);
+  } {
+    2   -  -  two  
+    3   -  -  three
+    6   -  -  six  
+    7   -  -  seven
+  }
+
+  # Verified by PG-14
+  do_execsql_test join9-$id.900 {
+    SELECT *
+      FROM (t3 NATURAL FULL JOIN t4)
+           NATURAL FULL JOIN
+           (t5 NATURAL FULL JOIN t6)
+    ORDER BY 1;
+  } {
+    0   -      -      -       1000
+    1   -      -      red     -   
+    2   two    alice  orange  -   
+    3   three  -      yellow  333 
+    4   -      bob    green   444 
+    5   -      -      blue    555 
+    6   six    cindy  -       -   
+    7   seven  -      -       -   
+    8   -      dave   -       -   
+    9   -      -      -       999 
+  }
+  do_execsql_test join9-$id.910 {
+    SELECT *
+      FROM t3 NATURAL FULL JOIN 
+           (t4 NATURAL FULL JOIN
+            (t5 NATURAL FULL JOIN t6))
+    ORDER BY 1;
+  } {
+    0   -      -      -       1000
+    1   -      -      red     -   
+    2   two    alice  orange  -   
+    3   three  -      yellow  333 
+    4   -      bob    green   444 
+    5   -      -      blue    555 
+    6   six    cindy  -       -   
+    7   seven  -      -       -   
+    8   -      dave   -       -   
+    9   -      -      -       999 
+  }
+  do_execsql_test join9-$id.920 {
+    SELECT *
+      FROM t3 FULL JOIN (
+                t4 FULL JOIN (
+                    t5 FULL JOIN t6 USING (id)
+                ) USING(id)
+           ) USING(id)
+    ORDER BY 1;
+  } {
+    0   -      -      -       1000
+    1   -      -      red     -   
+    2   two    alice  orange  -   
+    3   three  -      yellow  333 
+    4   -      bob    green   444 
+    5   -      -      blue    555 
+    6   six    cindy  -       -   
+    7   seven  -      -       -   
+    8   -      dave   -       -   
+    9   -      -      -       999 
+  }
+  do_execsql_test join9-$id.920 {
+    SELECT *
+      FROM t3 FULL JOIN (
+                t4 FULL JOIN (
+                    t5 FULL JOIN t6 USING (id)
+                ) USING(id)
+           ) USING(id)
+    ORDER BY 1;
+  } {
+    0   -      -      -       1000
+    1   -      -      red     -   
+    2   two    alice  orange  -   
+    3   three  -      yellow  333 
+    4   -      bob    green   444 
+    5   -      -      blue    555 
+    6   six    cindy  -       -   
+    7   seven  -      -       -   
+    8   -      dave   -       -   
+    9   -      -      -       999 
+  }
+
+  # Verified by PG-14
+  do_execsql_test join9-$id.930 {
+    SELECT *
+      FROM t3 FULL JOIN (
+               t4 FULL JOIN (
+                   t5 FULL JOIN t6 USING(id)
+               ) USING(id)
+           ) AS j1 ON j1.id=t3.id
+     ORDER BY coalesce(t3.id,j1.id);
+  } {
+    -   -      0   -      -       1000
+    -   -      1   -      red     -   
+    2   two    2   alice  orange  -   
+    3   three  3   -      yellow  333 
+    -   -      4   bob    green   444 
+    -   -      5   -      blue    555 
+    6   six    6   cindy  -       -   
+    7   seven  -   -      -       -   
+    -   -      8   dave   -       -   
+    -   -      9   -      -       999 
+  }
+
+  # Verified by PG-14
+  do_execsql_test join9-$id.940 {
+    SELECT *
+      FROM t3 FULL JOIN (
+                t4 RIGHT JOIN (
+                    t5 FULL JOIN t6 USING(id)
+                ) USING(id)
+           ) AS j1 ON j1.id=t3.id
+     ORDER BY coalesce(t3.id,j1.id);
+  } {
+    -   -      0   -      -       1000
+    -   -      1   -      red     -   
+    2   two    2   alice  orange  -   
+    3   three  3   -      yellow  333 
+    -   -      4   bob    green   444 
+    -   -      5   -      blue    555 
+    6   six    -   -      -       -   
+    7   seven  -   -      -       -   
+    -   -      9   -      -       999 
+  }
+
+  # Verified by PG-14
+  do_execsql_test join9-$id.950 {
+    SELECT *
+      FROM t3 FULL JOIN (
+                t4 LEFT JOIN (
+                    t5 FULL JOIN t6 USING(id)
+                ) USING(id)
+           ) AS j1 ON j1.id=t3.id
+     ORDER BY coalesce(t3.id,j1.id);
+  } {
+    2   two    2   alice  orange  -  
+    3   three  -   -      -       -  
+    -   -      4   bob    green   444
+    6   six    6   cindy  -       -  
+    7   seven  -   -      -       -  
+    -   -      8   dave   -       -  
+  }
+
+  # Restriction (27) in the query flattener
+  # Verified by PG-14
+  do_execsql_test join9-$id.1000 {
+    WITH t56(id,y,z) AS (SELECT * FROM t5 FULL JOIN t6 USING(id) LIMIT 50)
+    SELECT id,x,y,z FROM t4 JOIN t56 USING(id)
+    ORDER BY 1;
+  } {
+    2   alice  orange  -  
+    4   bob    green   444
+  }
+
+  # Verified by PG-14
+  do_execsql_test join9-$id.1010 {
+    SELECT id,x,y,z
+      FROM t4 INNER JOIN (t5 FULL JOIN t6 USING(id)) USING(id)
+     ORDER BY 1;
+  } {
+    2   alice  orange  -  
+    4   bob    green   444
+  }
+
+  # Verified by PG-14
+  do_execsql_test join9-$id.1020 {
+    SELECT id,x,y,z
+      FROM t4 FULL JOIN t5 USING(id) INNER JOIN t6 USING(id)
+     ORDER BY 1;
+  } {
+    3   -    yellow  333
+    4   bob  green   444
+    5   -    blue    555
+  }
+
+  # Verified by PG-14
+  do_execsql_test join9-$id.1030 {
+    WITH t45(id,x,y) AS (SELECT * FROM t4 FULL JOIN t5 USING(id) LIMIT 50)
+    SELECT id,x,y,z FROM t45 JOIN t6 USING(id)
+    ORDER BY 1;
+  } {
+    3   -    yellow  333
+    4   bob  green   444
+    5   -    blue    555
+  }
+
+}
+finish_test
diff --git a/test/joinA.test b/test/joinA.test
new file mode 100644
index 0000000000000000000000000000000000000000..04d1e68cfd68dd29cf096830cb0c38105dd514f5
--- /dev/null
+++ b/test/joinA.test
@@ -0,0 +1,277 @@
+# 2022-04-18
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests for RIGHT and FULL OUTER JOINs.
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+foreach {id schema} {
+  1 {
+    CREATE TABLE t1(a INT, b INT, c INT, d INT);
+    CREATE TABLE t2(c INT, d INT, e INT, f INT);
+    CREATE TABLE t3(a INT, b INT, e INT, f INT);
+    CREATE TABLE t4(a INT, c INT, d INT, f INT);
+    INSERT INTO t1 VALUES(11,21,31,41),(12,22,32,42),(15,25,35,45),(18,28,38,48);
+    INSERT INTO t2 VALUES(12,22,32,42),(13,23,33,43),(15,25,35,45),(17,27,37,47);
+    INSERT INTO t3 VALUES(14,24,34,44),(15,25,35,45),(16,26,36,46);
+    INSERT INTO t4 VALUES(11,21,31,41),(13,23,33,43),(16,26,36,46),(19,29,39,49);
+  }
+  2 {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b INT, c INT, d INT);
+    CREATE TABLE t2(c INT, d INTEGER PRIMARY KEY, e INT, f INT);
+    CREATE TABLE t3(a INT, b INT, e INTEGER PRIMARY KEY, f INT);
+    CREATE TABLE t4(a INT, c INT, d INT, f INT PRIMARY KEY) WITHOUT ROWID;
+    INSERT INTO t1 VALUES(11,21,31,41),(12,22,32,42),(15,25,35,45),(18,28,38,48);
+    INSERT INTO t2 VALUES(12,22,32,42),(13,23,33,43),(15,25,35,45),(17,27,37,47);
+    INSERT INTO t3 VALUES(14,24,34,44),(15,25,35,45),(16,26,36,46);
+    INSERT INTO t4 VALUES(11,21,31,41),(13,23,33,43),(16,26,36,46),(19,29,39,49);
+  }
+  3 {
+    CREATE TABLE t1a(a INT, b INT, c INT, d INT);
+    CREATE TABLE t2a(c INT, d INT, e INT, f INT);
+    CREATE TABLE t3a(a INT, b INT, e INT, f INT);
+    CREATE TABLE t4a(a INT, c INT, d INT, f INT);
+    INSERT INTO t1a VALUES(11,21,31,41),(12,22,32,42);
+    INSERT INTO t2a VALUES(12,22,32,42),(13,23,33,43);
+    INSERT INTO t3a VALUES(14,24,34,44),(15,25,35,45);
+    INSERT INTO t4a VALUES(11,21,31,41),(13,23,33,43);
+    CREATE TABLE t1b(a INT, b INT, c INT, d INT);
+    CREATE TABLE t2b(c INT, d INT, e INT, f INT);
+    CREATE TABLE t3b(a INT, b INT, e INT, f INT);
+    CREATE TABLE t4b(a INT, c INT, d INT, f INT);
+    INSERT INTO t1b VALUES(15,25,35,45),(18,28,38,48);
+    INSERT INTO t2b VALUES(15,25,35,45),(17,27,37,47);
+    INSERT INTO t3b VALUES(15,25,35,45),(16,26,36,46);
+    INSERT INTO t4b VALUES(16,26,36,46),(19,29,39,49);
+    CREATE VIEW t1 AS SELECT * FROM t1a UNION SELECT * FROM t1b;
+    CREATE VIEW t2 AS SELECT * FROM t2a UNION SELECT * FROM t2b;
+    CREATE VIEW t3 AS SELECT * FROM t3a UNION SELECT * FROM t3b;
+    CREATE VIEW t4 AS SELECT * FROM t4a UNION SELECT * FROM t4b;
+  }
+} {
+  reset_db
+  db nullvalue -
+  do_execsql_test joinA-$id.setup $schema {}
+
+  # Verified by PG-14
+  do_execsql_test joinA-$id.100 {
+    SELECT a,b,c,d,t2.e,f,t3.e
+      FROM t1
+           INNER JOIN t2 USING(c,d)
+           INNER JOIN t3 USING(a,b,f)
+           INNER JOIN t4 USING(a,c,d,f)
+    ORDER BY 1 nulls first, 3 nulls first;
+  } {}
+
+
+  # Verified by PG-14
+  do_execsql_test joinA-$id.110 {
+    SELECT a,b,c,d,t2.e,f,t3.e
+      FROM t1
+           LEFT JOIN t2 USING(c,d)
+           LEFT JOIN t3 USING(a,b,f)
+           LEFT JOIN t4 USING(a,c,d,f)
+    ORDER BY 1 nulls first, 3 nulls first;
+  } {
+    11  21  31  41  -  -  -
+    12  22  32  42  -  -  -
+    15  25  35  45  -  -  -
+    18  28  38  48  -  -  -
+  }
+
+  # Verified by PG-14
+  do_execsql_test joinA-$id.120 {
+    SELECT a,b,c,d,t2.e,f,t3.e
+      FROM t1
+           LEFT JOIN t2 USING(c,d)
+           RIGHT JOIN t3 USING(a,b,f)
+           LEFT JOIN t4 USING(a,c,d,f)
+    ORDER BY 1 nulls first, 3 nulls first;
+  } {
+    14  24  -  -  -  44  34
+    15  25  -  -  -  45  35
+    16  26  -  -  -  46  36
+  }
+
+  # Verified by PG-14
+  do_execsql_test joinA-$id.130 {
+    SELECT a,b,c,d,t2.e,f,t3.e
+      FROM t1
+           RIGHT JOIN t2 USING(c,d)
+           LEFT JOIN t3 USING(a,b,f)
+           RIGHT JOIN t4 USING(a,c,d,f)
+    ORDER BY 1 nulls first, 3 nulls first;
+  } {
+    11  -  21  31  -  41  -
+    13  -  23  33  -  43  -
+    16  -  26  36  -  46  -
+    19  -  29  39  -  49  -
+  }
+
+  # Verified by PG-14
+  do_execsql_test joinA-$id.140 {
+    SELECT a,b,c,d,t2.e,f,t3.e
+      FROM t1
+           FULL JOIN t2 USING(c,d)
+           LEFT JOIN t3 USING(a,b,f)
+           RIGHT JOIN t4 USING(a,c,d,f)
+    ORDER BY 1 nulls first, 3 nulls first;
+  } {
+    11  -  21  31  -  41  -
+    13  -  23  33  -  43  -
+    16  -  26  36  -  46  -
+    19  -  29  39  -  49  -
+  }
+
+  # Verified by PG-14
+  do_execsql_test joinA-$id.150 {
+    SELECT a,b,c,d,t2.e,f,t3.e
+      FROM t1
+           RIGHT JOIN t2 USING(c,d)
+           FULL JOIN t3 USING(a,b,f)
+           RIGHT JOIN t4 USING(a,c,d,f)
+    ORDER BY 1 nulls first, 3 nulls first;
+  } {
+    11  -  21  31  -  41  -
+    13  -  23  33  -  43  -
+    16  -  26  36  -  46  -
+    19  -  29  39  -  49  -
+  }
+
+  # Verified by PG-14
+  do_execsql_test joinA-$id.160 {
+    SELECT a,b,c,d,t2.e,f,t3.e
+      FROM t1
+           RIGHT JOIN t2 USING(c,d)
+           LEFT JOIN t3 USING(a,b,f)
+           FULL JOIN t4 USING(a,c,d,f)
+    ORDER BY 1 nulls first, 3 nulls first;
+  } {
+    -   -  12  22  32  42  -
+    -   -  13  23  33  43  -
+    -   -  15  25  35  45  -
+    -   -  17  27  37  47  -
+    11  -  21  31  -   41  -
+    13  -  23  33  -   43  -
+    16  -  26  36  -   46  -
+    19  -  29  39  -   49  -
+  }
+
+  # Verified by PG-14
+  do_execsql_test joinA-$id.170 {
+    SELECT a,b,c,d,t2.e,f,t3.e
+      FROM t1
+           LEFT JOIN t2 USING(c,d)
+           RIGHT JOIN t3 USING(a,b,f)
+           FULL JOIN t4 USING(a,c,d,f)
+    ORDER BY 1 nulls first, 3 nulls first;
+  } {
+    11  -   21  31  -  41  - 
+    13  -   23  33  -  43  - 
+    14  24  -   -   -  44  34
+    15  25  -   -   -  45  35
+    16  26  -   -   -  46  36
+    16  -   26  36  -  46  - 
+    19  -   29  39  -  49  - 
+  }
+
+  # Verified by PG-14
+  do_execsql_test joinA-$id.200 {
+    SELECT a,b,c,d,t2.e,f,t3.e
+      FROM t1
+           FULL JOIN t2 USING(c,d)
+           FULL JOIN t3 USING(a,b,f)
+           FULL JOIN t4 USING(a,c,d,f)
+    ORDER BY 1 nulls first, 3 nulls first;
+  } {
+    -   -   12  22  32  42  - 
+    -   -   13  23  33  43  - 
+    -   -   15  25  35  45  - 
+    -   -   17  27  37  47  - 
+    11  -   21  31  -   41  - 
+    11  21  31  41  -   -   - 
+    12  22  32  42  -   -   - 
+    13  -   23  33  -   43  - 
+    14  24  -   -   -   44  34
+    15  25  -   -   -   45  35
+    15  25  35  45  -   -   - 
+    16  26  -   -   -   46  36
+    16  -   26  36  -   46  - 
+    18  28  38  48  -   -   - 
+    19  -   29  39  -   49  - 
+  }
+
+  # Verified by PG-14
+  do_execsql_test joinA-$id.201 {
+    SELECT a,b,c,d,t2.e,f,t3.e,t1.a
+      FROM t1
+           FULL JOIN t2 USING(c,d)
+           FULL JOIN t3 USING(a,b,f)
+           FULL JOIN t4 USING(a,c,d,f)
+     WHERE t1.a!=0
+    ORDER BY 1 nulls first, 3 nulls first;
+  } {
+    11  21  31  41  -   -   -  11
+    12  22  32  42  -   -   -  12
+    15  25  35  45  -   -   -  15
+    18  28  38  48  -   -   -  18
+  }
+
+  # Verified by PG-14
+  do_execsql_test joinA-$id.202 {
+    SELECT a,b,c,d,t2.e,f,t3.e,t3.a
+      FROM t1
+           FULL JOIN t2 USING(c,d)
+           FULL JOIN t3 USING(a,b,f)
+           FULL JOIN t4 USING(a,c,d,f)
+     WHERE t3.a!=0
+    ORDER BY 1 nulls first, 3 nulls first;
+  } {
+    14  24  -   -   -   44  34  14
+    15  25  -   -   -   45  35  15
+    16  26  -   -   -   46  36  16
+  }
+
+  # Verified by PG-14
+  do_execsql_test joinA-$id.203 {
+    SELECT a,b,c,d,t2.e,f,t3.e,t4.a
+      FROM t1
+           FULL JOIN t2 USING(c,d)
+           FULL JOIN t3 USING(a,b,f)
+           FULL JOIN t4 USING(a,c,d,f)
+     WHERE t4.a!=0
+    ORDER BY 1 nulls first, 3 nulls first;
+  } {
+    11  -   21  31  -   41  -  11
+    13  -   23  33  -   43  -  13
+    16  -   26  36  -   46  -  16
+    19  -   29  39  -   49  -  19
+  }
+
+  # Verified by PG-14
+  do_execsql_test joinA-$id.204 {
+    SELECT a,b,c,d,t2.e,f,t3.e
+      FROM t1
+           FULL JOIN t2 USING(c,d)
+           FULL JOIN t3 USING(a,b,f)
+           FULL JOIN t4 USING(a,c,d,f)
+     WHERE t2.e!=0
+    ORDER BY 1 nulls first, 3 nulls first;
+  } {
+    -   -   12  22  32  42  - 
+    -   -   13  23  33  43  - 
+    -   -   15  25  35  45  - 
+    -   -   17  27  37  47  - 
+  }
+}
+finish_test
diff --git a/test/joinB.test b/test/joinB.test
new file mode 100644
index 0000000000000000000000000000000000000000..baaeae677e919ae223290dd13b4a6f8832df5df2
--- /dev/null
+++ b/test/joinB.test
@@ -0,0 +1,7252 @@
+set testdir [file dirname $argv0]
+# 2022-04-19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements tests for JOINs.
+#
+# The test case output is all generated by PostgreSQL 14.  This test module
+# was created as follows:
+#
+#   1.   Run a TCL script (included at the bottom of this file) that
+#        generates an input script for "psql" that will run man
+#        diverse tests on joins.
+#
+#   2.   Run the script from step (1) through psql and collect the
+#        output.
+#
+#   3.   Make a few minor global search-and-replace operations to convert
+#        the psql output into a form suitable for this test module.
+#
+#   4.   Add this header, and the script content at the footer.
+#
+source $testdir/tester.tcl
+db nullvalue -
+db eval {
+  DROP TABLE IF EXISTS t1;
+  DROP TABLE IF EXISTS t2;
+  DROP TABLE IF EXISTS t3;
+  DROP TABLE IF EXISTS t4;
+  DROP TABLE IF EXISTS t5;
+  CREATE TABLE t1(a INT, b INT, c INT);
+  CREATE TABLE t2(a INT, b INT, d INT);
+  CREATE TABLE t3(a INT, b INT, e INT);
+  CREATE TABLE t4(a INT, b INT, f INT);
+  CREATE TABLE t5(a INT, b INT, g INT);
+  INSERT INTO t1 VALUES(11,21,31),(12,22,32),(15,25,35),(17,27,37);
+  INSERT INTO t2 VALUES(12,22,32),(13,23,33),(15,25,35),(18,28,38),
+                       (NULL,NULL,36);
+  INSERT INTO t4 VALUES(11,21,31),(13,23,33),(15,25,35),(19,29,39);
+  INSERT INTO t3 SELECT * FROM t1 UNION SELECT * FROM t2 UNION SELECT * FROM t4;
+  INSERT INTO t5 SELECT * FROM t3 WHERE a>=15;
+}
+do_execsql_test joinB-1 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+}
+do_execsql_test joinB-2 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  INNER JOIN t2 USING(a,b)
+  INNER JOIN t3 USING(a,b)
+  INNER JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-3 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+}
+do_execsql_test joinB-4 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  INNER JOIN (t2 INNER JOIN t3 USING(a)) USING(a)
+  INNER JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-5 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  -  -  - 19
+}
+do_execsql_test joinB-6 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  INNER JOIN t2 USING(a,b)
+  INNER JOIN t3 USING(a,b)
+  INNER JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  -  -  - 37
+  18 28  -  -  -  - 38
+  19 29  -  -  -  - 39
+}
+do_execsql_test joinB-7 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  -  -  - 19
+}
+do_execsql_test joinB-8 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL INNER JOIN t2
+  NATURAL INNER JOIN t3
+  NATURAL INNER JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-9 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+}
+do_execsql_test joinB-10 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  INNER JOIN t2 USING(a,b)
+  INNER JOIN t3 USING(a,b)
+  LEFT JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-11 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+}
+do_execsql_test joinB-12 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  INNER JOIN (t2 INNER JOIN t3 USING(a)) USING(a)
+  LEFT JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 32 32 32  -  -
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-13 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  -  -  - 19
+}
+do_execsql_test joinB-14 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  INNER JOIN t2 USING(a,b)
+  INNER JOIN t3 USING(a,b)
+  LEFT JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  -  -  - 37
+  18 28  -  -  -  - 38
+  19 29  -  -  -  - 39
+}
+do_execsql_test joinB-15 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  -  -  - 19
+}
+do_execsql_test joinB-16 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL INNER JOIN t2
+  NATURAL INNER JOIN t3
+  NATURAL LEFT JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-17 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-18 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  INNER JOIN t2 USING(a,b)
+  INNER JOIN t3 USING(a,b)
+  RIGHT JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  19  -  -  - 39 39
+}
+do_execsql_test joinB-19 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11  -  -  - 11  -
+  13  -  -  - 13  -
+  15 15 15 15 15 15
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-20 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  INNER JOIN (t2 INNER JOIN t3 USING(a)) USING(a)
+  RIGHT JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11  -  -  - 31  -
+  13  -  -  - 33  -
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-21 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-22 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  INNER JOIN t2 USING(a,b)
+  INNER JOIN t3 USING(a,b)
+  RIGHT JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  -  -  - 37
+  18 28  -  -  -  - 38
+  19 29  -  -  - 39 39
+}
+do_execsql_test joinB-23 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11  -  -  - 11  -
+  13  -  -  - 13  -
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-24 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL INNER JOIN t2
+  NATURAL INNER JOIN t3
+  NATURAL RIGHT JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-25 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-26 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  INNER JOIN t2 USING(a,b)
+  INNER JOIN t3 USING(a,b)
+  FULL JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  19  -  -  - 39 39
+}
+do_execsql_test joinB-27 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11  -  -  - 11  -
+  12 12 12 12  -  -
+  13  -  -  - 13  -
+  15 15 15 15 15 15
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-28 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  INNER JOIN (t2 INNER JOIN t3 USING(a)) USING(a)
+  FULL JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11  -  -  - 31  -
+  12 32 32 32  -  -
+  13  -  -  - 33  -
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-29 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-30 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  INNER JOIN t2 USING(a,b)
+  INNER JOIN t3 USING(a,b)
+  FULL JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  -  -  - 37
+  18 28  -  -  -  - 38
+  19 29  -  -  - 39 39
+}
+do_execsql_test joinB-31 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11  -  -  - 11  -
+  12 12 12 12  -  -
+  13  -  -  - 13  -
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-32 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL INNER JOIN t2
+  NATURAL INNER JOIN t3
+  NATURAL FULL JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-33 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+}
+do_execsql_test joinB-34 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  INNER JOIN t2 USING(a,b)
+  LEFT JOIN t3 USING(a,b)
+  INNER JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-35 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+}
+do_execsql_test joinB-36 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  INNER JOIN (t2 LEFT JOIN t3 USING(a)) USING(a)
+  INNER JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-37 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  -  -  - 19
+}
+do_execsql_test joinB-38 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  INNER JOIN t2 USING(a,b)
+  LEFT JOIN t3 USING(a,b)
+  INNER JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  -  -  - 37
+  18 28  -  -  -  - 38
+  19 29  -  -  -  - 39
+}
+do_execsql_test joinB-39 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  -  -  - 19
+}
+do_execsql_test joinB-40 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL INNER JOIN t2
+  NATURAL LEFT JOIN t3
+  NATURAL INNER JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-41 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+}
+do_execsql_test joinB-42 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  INNER JOIN t2 USING(a,b)
+  LEFT JOIN t3 USING(a,b)
+  LEFT JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-43 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+}
+do_execsql_test joinB-44 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  INNER JOIN (t2 LEFT JOIN t3 USING(a)) USING(a)
+  LEFT JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 32 32 32  -  -
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-45 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  -  -  - 19
+}
+do_execsql_test joinB-46 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  INNER JOIN t2 USING(a,b)
+  LEFT JOIN t3 USING(a,b)
+  LEFT JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  -  -  - 37
+  18 28  -  -  -  - 38
+  19 29  -  -  -  - 39
+}
+do_execsql_test joinB-47 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  -  -  - 19
+}
+do_execsql_test joinB-48 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL INNER JOIN t2
+  NATURAL LEFT JOIN t3
+  NATURAL LEFT JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-49 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-50 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  INNER JOIN t2 USING(a,b)
+  LEFT JOIN t3 USING(a,b)
+  RIGHT JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  19  -  -  - 39 39
+}
+do_execsql_test joinB-51 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11  -  -  - 11  -
+  13  -  -  - 13  -
+  15 15 15 15 15 15
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-52 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  INNER JOIN (t2 LEFT JOIN t3 USING(a)) USING(a)
+  RIGHT JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11  -  -  - 31  -
+  13  -  -  - 33  -
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-53 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-54 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  INNER JOIN t2 USING(a,b)
+  LEFT JOIN t3 USING(a,b)
+  RIGHT JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  -  -  - 37
+  18 28  -  -  -  - 38
+  19 29  -  -  - 39 39
+}
+do_execsql_test joinB-55 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11  -  -  - 11  -
+  13  -  -  - 13  -
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-56 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL INNER JOIN t2
+  NATURAL LEFT JOIN t3
+  NATURAL RIGHT JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-57 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-58 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  INNER JOIN t2 USING(a,b)
+  LEFT JOIN t3 USING(a,b)
+  FULL JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  19  -  -  - 39 39
+}
+do_execsql_test joinB-59 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11  -  -  - 11  -
+  12 12 12 12  -  -
+  13  -  -  - 13  -
+  15 15 15 15 15 15
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-60 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  INNER JOIN (t2 LEFT JOIN t3 USING(a)) USING(a)
+  FULL JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11  -  -  - 31  -
+  12 32 32 32  -  -
+  13  -  -  - 33  -
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-61 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-62 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  INNER JOIN t2 USING(a,b)
+  LEFT JOIN t3 USING(a,b)
+  FULL JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  -  -  - 37
+  18 28  -  -  -  - 38
+  19 29  -  -  - 39 39
+}
+do_execsql_test joinB-63 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11  -  -  - 11  -
+  12 12 12 12  -  -
+  13  -  -  - 13  -
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-64 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL INNER JOIN t2
+  NATURAL LEFT JOIN t3
+  NATURAL FULL JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-65 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-66 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  INNER JOIN t2 USING(a,b)
+  RIGHT JOIN t3 USING(a,b)
+  INNER JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  19  -  - 39 39 39
+}
+do_execsql_test joinB-67 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11  -  - 11 11  -
+  13  -  - 13 13  -
+  15 15 15 15 15 15
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-68 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  INNER JOIN (t2 RIGHT JOIN t3 USING(a)) USING(a)
+  INNER JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  - 31 31  -
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-69 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-70 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  INNER JOIN t2 USING(a,b)
+  RIGHT JOIN t3 USING(a,b)
+  INNER JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  -  -  - 37
+  18 28  -  -  -  - 38
+  19 29  -  - 39 39 39
+}
+do_execsql_test joinB-71 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11  -  - 11 11  -
+  13  -  - 13 13  -
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-72 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL INNER JOIN t2
+  NATURAL RIGHT JOIN t3
+  NATURAL INNER JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-73 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  - 17  - 17
+  18  -  - 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-74 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  INNER JOIN t2 USING(a,b)
+  RIGHT JOIN t3 USING(a,b)
+  LEFT JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  17  -  - 37  - 37
+  18  -  - 38  - 38
+  19  -  - 39 39 39
+}
+do_execsql_test joinB-75 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11  -  - 11 11  -
+  12 12 12 12  -  -
+  13  -  - 13 13  -
+  15 15 15 15 15 15
+  17  -  - 17  - 17
+  18  -  - 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-76 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  INNER JOIN (t2 RIGHT JOIN t3 USING(a)) USING(a)
+  LEFT JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  - 31 31  -
+  12 32 32 32  -  -
+  15 35 35 35 35 35
+  17 37  - 37  -  -
+}
+do_execsql_test joinB-77 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  - 17  - 17
+  18  -  - 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-78 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  INNER JOIN t2 USING(a,b)
+  RIGHT JOIN t3 USING(a,b)
+  LEFT JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  - 37  - 37
+  18 28  -  - 38  - 38
+  19 29  -  - 39 39 39
+}
+do_execsql_test joinB-79 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11  -  - 11 11  -
+  12 12 12 12  -  -
+  13  -  - 13 13  -
+  15 15 15 15 15 15
+  17  -  - 17  - 17
+  18  -  - 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-80 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL INNER JOIN t2
+  NATURAL RIGHT JOIN t3
+  NATURAL LEFT JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-81 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-82 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  INNER JOIN t2 USING(a,b)
+  RIGHT JOIN t3 USING(a,b)
+  RIGHT JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  19  -  - 39 39 39
+}
+do_execsql_test joinB-83 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11  -  - 11 11  -
+  13  -  - 13 13  -
+  15 15 15 15 15 15
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-84 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  INNER JOIN (t2 RIGHT JOIN t3 USING(a)) USING(a)
+  RIGHT JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  - 31 31  -
+  13  -  -  - 33  -
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-85 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-86 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  INNER JOIN t2 USING(a,b)
+  RIGHT JOIN t3 USING(a,b)
+  RIGHT JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  -  -  - 37
+  18 28  -  -  -  - 38
+  19 29  -  - 39 39 39
+}
+do_execsql_test joinB-87 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11  -  - 11 11  -
+  13  -  - 13 13  -
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-88 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL INNER JOIN t2
+  NATURAL RIGHT JOIN t3
+  NATURAL RIGHT JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-89 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  - 17  - 17
+  18  -  - 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-90 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  INNER JOIN t2 USING(a,b)
+  RIGHT JOIN t3 USING(a,b)
+  FULL JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  17  -  - 37  - 37
+  18  -  - 38  - 38
+  19  -  - 39 39 39
+}
+do_execsql_test joinB-91 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11  -  - 11 11  -
+  12 12 12 12  -  -
+  13  -  - 13 13  -
+  15 15 15 15 15 15
+  17  -  - 17  - 17
+  18  -  - 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-92 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  INNER JOIN (t2 RIGHT JOIN t3 USING(a)) USING(a)
+  FULL JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  - 31 31  -
+  12 32 32 32  -  -
+  13  -  -  - 33  -
+  15 35 35 35 35 35
+  17 37  - 37  -  -
+}
+do_execsql_test joinB-93 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  - 17  - 17
+  18  -  - 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-94 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  INNER JOIN t2 USING(a,b)
+  RIGHT JOIN t3 USING(a,b)
+  FULL JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  - 37  - 37
+  18 28  -  - 38  - 38
+  19 29  -  - 39 39 39
+}
+do_execsql_test joinB-95 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11  -  - 11 11  -
+  12 12 12 12  -  -
+  13  -  - 13 13  -
+  15 15 15 15 15 15
+  17  -  - 17  - 17
+  18  -  - 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-96 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL INNER JOIN t2
+  NATURAL RIGHT JOIN t3
+  NATURAL FULL JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-97 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-98 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  INNER JOIN t2 USING(a,b)
+  FULL JOIN t3 USING(a,b)
+  INNER JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  19  -  - 39 39 39
+}
+do_execsql_test joinB-99 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11  -  - 11 11  -
+  13  -  - 13 13  -
+  15 15 15 15 15 15
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-100 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  INNER JOIN (t2 FULL JOIN t3 USING(a)) USING(a)
+  INNER JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  - 31 31  -
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-101 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-102 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  INNER JOIN t2 USING(a,b)
+  FULL JOIN t3 USING(a,b)
+  INNER JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  -  -  - 37
+  18 28  -  -  -  - 38
+  19 29  -  - 39 39 39
+}
+do_execsql_test joinB-103 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11  -  - 11 11  -
+  13  -  - 13 13  -
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-104 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL INNER JOIN t2
+  NATURAL FULL JOIN t3
+  NATURAL INNER JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-105 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  - 17  - 17
+  18  -  - 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-106 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  INNER JOIN t2 USING(a,b)
+  FULL JOIN t3 USING(a,b)
+  LEFT JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  17  -  - 37  - 37
+  18  -  - 38  - 38
+  19  -  - 39 39 39
+}
+do_execsql_test joinB-107 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11  -  - 11 11  -
+  12 12 12 12  -  -
+  13  -  - 13 13  -
+  15 15 15 15 15 15
+  17  -  - 17  - 17
+  18  -  - 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-108 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  INNER JOIN (t2 FULL JOIN t3 USING(a)) USING(a)
+  LEFT JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  - 31 31  -
+  12 32 32 32  -  -
+  15 35 35 35 35 35
+  17 37  - 37  -  -
+}
+do_execsql_test joinB-109 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  - 17  - 17
+  18  -  - 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-110 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  INNER JOIN t2 USING(a,b)
+  FULL JOIN t3 USING(a,b)
+  LEFT JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  - 37  - 37
+  18 28  -  - 38  - 38
+  19 29  -  - 39 39 39
+}
+do_execsql_test joinB-111 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11  -  - 11 11  -
+  12 12 12 12  -  -
+  13  -  - 13 13  -
+  15 15 15 15 15 15
+  17  -  - 17  - 17
+  18  -  - 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-112 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL INNER JOIN t2
+  NATURAL FULL JOIN t3
+  NATURAL LEFT JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-113 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-114 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  INNER JOIN t2 USING(a,b)
+  FULL JOIN t3 USING(a,b)
+  RIGHT JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  19  -  - 39 39 39
+}
+do_execsql_test joinB-115 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11  -  - 11 11  -
+  13  -  - 13 13  -
+  15 15 15 15 15 15
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-116 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  INNER JOIN (t2 FULL JOIN t3 USING(a)) USING(a)
+  RIGHT JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  - 31 31  -
+  13  -  -  - 33  -
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-117 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-118 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  INNER JOIN t2 USING(a,b)
+  FULL JOIN t3 USING(a,b)
+  RIGHT JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  -  -  - 37
+  18 28  -  -  -  - 38
+  19 29  -  - 39 39 39
+}
+do_execsql_test joinB-119 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11  -  - 11 11  -
+  13  -  - 13 13  -
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-120 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL INNER JOIN t2
+  NATURAL FULL JOIN t3
+  NATURAL RIGHT JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-121 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  - 17  - 17
+  18  -  - 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-122 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  INNER JOIN t2 USING(a,b)
+  FULL JOIN t3 USING(a,b)
+  FULL JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  17  -  - 37  - 37
+  18  -  - 38  - 38
+  19  -  - 39 39 39
+}
+do_execsql_test joinB-123 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11  -  - 11 11  -
+  12 12 12 12  -  -
+  13  -  - 13 13  -
+  15 15 15 15 15 15
+  17  -  - 17  - 17
+  18  -  - 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-124 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  INNER JOIN (t2 FULL JOIN t3 USING(a)) USING(a)
+  FULL JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  - 31 31  -
+  12 32 32 32  -  -
+  13  -  -  - 33  -
+  15 35 35 35 35 35
+  17 37  - 37  -  -
+}
+do_execsql_test joinB-125 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  - 17  - 17
+  18  -  - 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-126 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  INNER JOIN t2 USING(a,b)
+  FULL JOIN t3 USING(a,b)
+  FULL JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  - 37  - 37
+  18 28  -  - 38  - 38
+  19 29  -  - 39 39 39
+}
+do_execsql_test joinB-127 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  INNER JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11  -  - 11 11  -
+  12 12 12 12  -  -
+  13  -  - 13 13  -
+  15 15 15 15 15 15
+  17  -  - 17  - 17
+  18  -  - 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-128 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL INNER JOIN t2
+  NATURAL FULL JOIN t3
+  NATURAL FULL JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-129 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+}
+do_execsql_test joinB-130 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  LEFT JOIN t2 USING(a,b)
+  INNER JOIN t3 USING(a,b)
+  INNER JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-131 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  15 15 15 15 15 15
+}
+do_execsql_test joinB-132 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  LEFT JOIN (t2 INNER JOIN t3 USING(a)) USING(a)
+  INNER JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  -  - 31  -
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-133 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  -  -  - 19
+}
+do_execsql_test joinB-134 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  LEFT JOIN t2 USING(a,b)
+  INNER JOIN t3 USING(a,b)
+  INNER JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  -  -  - 37
+  18 28  -  -  -  - 38
+  19 29  -  -  -  - 39
+}
+do_execsql_test joinB-135 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  -  -  - 19
+}
+do_execsql_test joinB-136 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL LEFT JOIN t2
+  NATURAL INNER JOIN t3
+  NATURAL INNER JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-137 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+}
+do_execsql_test joinB-138 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  LEFT JOIN t2 USING(a,b)
+  INNER JOIN t3 USING(a,b)
+  LEFT JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  17 37  - 37  - 37
+}
+do_execsql_test joinB-139 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+}
+do_execsql_test joinB-140 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  LEFT JOIN (t2 INNER JOIN t3 USING(a)) USING(a)
+  LEFT JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  -  - 31  -
+  12 32 32 32  -  -
+  15 35 35 35 35 35
+  17 37  -  -  -  -
+}
+do_execsql_test joinB-141 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  -  -  -  - 18
+  19  -  -  -  - 19
+}
+do_execsql_test joinB-142 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  LEFT JOIN t2 USING(a,b)
+  INNER JOIN t3 USING(a,b)
+  LEFT JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27 37  - 37  - 37
+  18 28  -  -  -  - 38
+  19 29  -  -  -  - 39
+}
+do_execsql_test joinB-143 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  -  -  -  - 18
+  19  -  -  -  - 19
+}
+do_execsql_test joinB-144 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL LEFT JOIN t2
+  NATURAL INNER JOIN t3
+  NATURAL LEFT JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-145 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-146 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  LEFT JOIN t2 USING(a,b)
+  INNER JOIN t3 USING(a,b)
+  RIGHT JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  19  -  -  - 39 39
+}
+do_execsql_test joinB-147 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  13  -  -  - 13  -
+  15 15 15 15 15 15
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-148 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  LEFT JOIN (t2 INNER JOIN t3 USING(a)) USING(a)
+  RIGHT JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  -  - 31  -
+  13  -  -  - 33  -
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-149 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-150 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  LEFT JOIN t2 USING(a,b)
+  INNER JOIN t3 USING(a,b)
+  RIGHT JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  -  -  - 37
+  18 28  -  -  -  - 38
+  19 29  -  -  - 39 39
+}
+do_execsql_test joinB-151 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  13  -  -  - 13  -
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-152 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL LEFT JOIN t2
+  NATURAL INNER JOIN t3
+  NATURAL RIGHT JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-153 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-154 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  LEFT JOIN t2 USING(a,b)
+  INNER JOIN t3 USING(a,b)
+  FULL JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  17 37  - 37  - 37
+  19  -  -  - 39 39
+}
+do_execsql_test joinB-155 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  13  -  -  - 13  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-156 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  LEFT JOIN (t2 INNER JOIN t3 USING(a)) USING(a)
+  FULL JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  -  - 31  -
+  12 32 32 32  -  -
+  13  -  -  - 33  -
+  15 35 35 35 35 35
+  17 37  -  -  -  -
+}
+do_execsql_test joinB-157 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  -  -  -  - 18
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-158 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  LEFT JOIN t2 USING(a,b)
+  INNER JOIN t3 USING(a,b)
+  FULL JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27 37  - 37  - 37
+  18 28  -  -  -  - 38
+  19 29  -  -  - 39 39
+}
+do_execsql_test joinB-159 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  13  -  -  - 13  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  -  -  -  - 18
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-160 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL LEFT JOIN t2
+  NATURAL INNER JOIN t3
+  NATURAL FULL JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-161 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+}
+do_execsql_test joinB-162 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  LEFT JOIN t2 USING(a,b)
+  LEFT JOIN t3 USING(a,b)
+  INNER JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-163 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  15 15 15 15 15 15
+}
+do_execsql_test joinB-164 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  LEFT JOIN (t2 LEFT JOIN t3 USING(a)) USING(a)
+  INNER JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  -  - 31  -
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-165 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  -  -  - 19
+}
+do_execsql_test joinB-166 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  LEFT JOIN t2 USING(a,b)
+  LEFT JOIN t3 USING(a,b)
+  INNER JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  -  -  - 37
+  18 28  -  -  -  - 38
+  19 29  -  -  -  - 39
+}
+do_execsql_test joinB-167 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  -  -  - 19
+}
+do_execsql_test joinB-168 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL LEFT JOIN t2
+  NATURAL LEFT JOIN t3
+  NATURAL INNER JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-169 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+}
+do_execsql_test joinB-170 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  LEFT JOIN t2 USING(a,b)
+  LEFT JOIN t3 USING(a,b)
+  LEFT JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  17 37  - 37  - 37
+}
+do_execsql_test joinB-171 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+}
+do_execsql_test joinB-172 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  LEFT JOIN (t2 LEFT JOIN t3 USING(a)) USING(a)
+  LEFT JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  -  - 31  -
+  12 32 32 32  -  -
+  15 35 35 35 35 35
+  17 37  -  -  -  -
+}
+do_execsql_test joinB-173 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  -  -  -  - 18
+  19  -  -  -  - 19
+}
+do_execsql_test joinB-174 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  LEFT JOIN t2 USING(a,b)
+  LEFT JOIN t3 USING(a,b)
+  LEFT JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27 37  - 37  - 37
+  18 28  -  -  -  - 38
+  19 29  -  -  -  - 39
+}
+do_execsql_test joinB-175 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  -  -  -  - 18
+  19  -  -  -  - 19
+}
+do_execsql_test joinB-176 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL LEFT JOIN t2
+  NATURAL LEFT JOIN t3
+  NATURAL LEFT JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-177 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-178 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  LEFT JOIN t2 USING(a,b)
+  LEFT JOIN t3 USING(a,b)
+  RIGHT JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  19  -  -  - 39 39
+}
+do_execsql_test joinB-179 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  13  -  -  - 13  -
+  15 15 15 15 15 15
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-180 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  LEFT JOIN (t2 LEFT JOIN t3 USING(a)) USING(a)
+  RIGHT JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  -  - 31  -
+  13  -  -  - 33  -
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-181 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-182 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  LEFT JOIN t2 USING(a,b)
+  LEFT JOIN t3 USING(a,b)
+  RIGHT JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  -  -  - 37
+  18 28  -  -  -  - 38
+  19 29  -  -  - 39 39
+}
+do_execsql_test joinB-183 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  13  -  -  - 13  -
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-184 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL LEFT JOIN t2
+  NATURAL LEFT JOIN t3
+  NATURAL RIGHT JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-185 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-186 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  LEFT JOIN t2 USING(a,b)
+  LEFT JOIN t3 USING(a,b)
+  FULL JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  17 37  - 37  - 37
+  19  -  -  - 39 39
+}
+do_execsql_test joinB-187 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  13  -  -  - 13  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-188 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  LEFT JOIN (t2 LEFT JOIN t3 USING(a)) USING(a)
+  FULL JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  -  - 31  -
+  12 32 32 32  -  -
+  13  -  -  - 33  -
+  15 35 35 35 35 35
+  17 37  -  -  -  -
+}
+do_execsql_test joinB-189 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  -  -  -  - 18
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-190 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  LEFT JOIN t2 USING(a,b)
+  LEFT JOIN t3 USING(a,b)
+  FULL JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27 37  - 37  - 37
+  18 28  -  -  -  - 38
+  19 29  -  -  - 39 39
+}
+do_execsql_test joinB-191 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  13  -  -  - 13  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  -  -  -  - 18
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-192 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL LEFT JOIN t2
+  NATURAL LEFT JOIN t3
+  NATURAL FULL JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-193 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-194 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  LEFT JOIN t2 USING(a,b)
+  RIGHT JOIN t3 USING(a,b)
+  INNER JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  19  -  - 39 39 39
+}
+do_execsql_test joinB-195 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  13  -  - 13 13  -
+  15 15 15 15 15 15
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-196 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  LEFT JOIN (t2 RIGHT JOIN t3 USING(a)) USING(a)
+  INNER JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  - 31 31  -
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-197 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-198 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  LEFT JOIN t2 USING(a,b)
+  RIGHT JOIN t3 USING(a,b)
+  INNER JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  -  -  - 37
+  18 28  -  -  -  - 38
+  19 29  -  - 39 39 39
+}
+do_execsql_test joinB-199 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  13  -  - 13 13  -
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-200 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL LEFT JOIN t2
+  NATURAL RIGHT JOIN t3
+  NATURAL INNER JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-201 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  -  - 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-202 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  LEFT JOIN t2 USING(a,b)
+  RIGHT JOIN t3 USING(a,b)
+  LEFT JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  17 37  - 37  - 37
+  18  -  - 38  - 38
+  19  -  - 39 39 39
+}
+do_execsql_test joinB-203 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  13  -  - 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  -  - 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-204 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  LEFT JOIN (t2 RIGHT JOIN t3 USING(a)) USING(a)
+  LEFT JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  - 31 31  -
+  12 32 32 32  -  -
+  15 35 35 35 35 35
+  17 37  - 37  -  -
+}
+do_execsql_test joinB-205 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  -  - 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-206 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  LEFT JOIN t2 USING(a,b)
+  RIGHT JOIN t3 USING(a,b)
+  LEFT JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27 37  - 37  - 37
+  18 28  -  - 38  - 38
+  19 29  -  - 39 39 39
+}
+do_execsql_test joinB-207 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  13  -  - 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  -  - 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-208 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL LEFT JOIN t2
+  NATURAL RIGHT JOIN t3
+  NATURAL LEFT JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-209 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-210 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  LEFT JOIN t2 USING(a,b)
+  RIGHT JOIN t3 USING(a,b)
+  RIGHT JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  19  -  - 39 39 39
+}
+do_execsql_test joinB-211 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  13  -  - 13 13  -
+  15 15 15 15 15 15
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-212 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  LEFT JOIN (t2 RIGHT JOIN t3 USING(a)) USING(a)
+  RIGHT JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  - 31 31  -
+  13  -  -  - 33  -
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-213 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-214 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  LEFT JOIN t2 USING(a,b)
+  RIGHT JOIN t3 USING(a,b)
+  RIGHT JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  -  -  - 37
+  18 28  -  -  -  - 38
+  19 29  -  - 39 39 39
+}
+do_execsql_test joinB-215 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  13  -  - 13 13  -
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-216 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL LEFT JOIN t2
+  NATURAL RIGHT JOIN t3
+  NATURAL RIGHT JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-217 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  -  - 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-218 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  LEFT JOIN t2 USING(a,b)
+  RIGHT JOIN t3 USING(a,b)
+  FULL JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  17 37  - 37  - 37
+  18  -  - 38  - 38
+  19  -  - 39 39 39
+}
+do_execsql_test joinB-219 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  13  -  - 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  -  - 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-220 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  LEFT JOIN (t2 RIGHT JOIN t3 USING(a)) USING(a)
+  FULL JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  - 31 31  -
+  12 32 32 32  -  -
+  13  -  -  - 33  -
+  15 35 35 35 35 35
+  17 37  - 37  -  -
+}
+do_execsql_test joinB-221 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  -  - 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-222 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  LEFT JOIN t2 USING(a,b)
+  RIGHT JOIN t3 USING(a,b)
+  FULL JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27 37  - 37  - 37
+  18 28  -  - 38  - 38
+  19 29  -  - 39 39 39
+}
+do_execsql_test joinB-223 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  13  -  - 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  -  - 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-224 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL LEFT JOIN t2
+  NATURAL RIGHT JOIN t3
+  NATURAL FULL JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-225 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-226 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  LEFT JOIN t2 USING(a,b)
+  FULL JOIN t3 USING(a,b)
+  INNER JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  19  -  - 39 39 39
+}
+do_execsql_test joinB-227 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  13  -  - 13 13  -
+  15 15 15 15 15 15
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-228 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  LEFT JOIN (t2 FULL JOIN t3 USING(a)) USING(a)
+  INNER JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  - 31 31  -
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-229 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-230 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  LEFT JOIN t2 USING(a,b)
+  FULL JOIN t3 USING(a,b)
+  INNER JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  -  -  - 37
+  18 28  -  -  -  - 38
+  19 29  -  - 39 39 39
+}
+do_execsql_test joinB-231 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  13  -  - 13 13  -
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-232 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL LEFT JOIN t2
+  NATURAL FULL JOIN t3
+  NATURAL INNER JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-233 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  -  - 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-234 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  LEFT JOIN t2 USING(a,b)
+  FULL JOIN t3 USING(a,b)
+  LEFT JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  17 37  - 37  - 37
+  18  -  - 38  - 38
+  19  -  - 39 39 39
+}
+do_execsql_test joinB-235 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  13  -  - 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  -  - 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-236 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  LEFT JOIN (t2 FULL JOIN t3 USING(a)) USING(a)
+  LEFT JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  - 31 31  -
+  12 32 32 32  -  -
+  15 35 35 35 35 35
+  17 37  - 37  -  -
+}
+do_execsql_test joinB-237 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  -  - 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-238 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  LEFT JOIN t2 USING(a,b)
+  FULL JOIN t3 USING(a,b)
+  LEFT JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27 37  - 37  - 37
+  18 28  -  - 38  - 38
+  19 29  -  - 39 39 39
+}
+do_execsql_test joinB-239 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  13  -  - 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  -  - 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-240 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL LEFT JOIN t2
+  NATURAL FULL JOIN t3
+  NATURAL LEFT JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-241 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-242 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  LEFT JOIN t2 USING(a,b)
+  FULL JOIN t3 USING(a,b)
+  RIGHT JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  19  -  - 39 39 39
+}
+do_execsql_test joinB-243 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  13  -  - 13 13  -
+  15 15 15 15 15 15
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-244 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  LEFT JOIN (t2 FULL JOIN t3 USING(a)) USING(a)
+  RIGHT JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  - 31 31  -
+  13  -  -  - 33  -
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-245 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-246 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  LEFT JOIN t2 USING(a,b)
+  FULL JOIN t3 USING(a,b)
+  RIGHT JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  -  -  - 37
+  18 28  -  -  -  - 38
+  19 29  -  - 39 39 39
+}
+do_execsql_test joinB-247 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  13  -  - 13 13  -
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-248 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL LEFT JOIN t2
+  NATURAL FULL JOIN t3
+  NATURAL RIGHT JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-249 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  -  - 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-250 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  LEFT JOIN t2 USING(a,b)
+  FULL JOIN t3 USING(a,b)
+  FULL JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  17 37  - 37  - 37
+  18  -  - 38  - 38
+  19  -  - 39 39 39
+}
+do_execsql_test joinB-251 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  13  -  - 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  -  - 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-252 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  LEFT JOIN (t2 FULL JOIN t3 USING(a)) USING(a)
+  FULL JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  - 31 31  -
+  12 32 32 32  -  -
+  13  -  -  - 33  -
+  15 35 35 35 35 35
+  17 37  - 37  -  -
+}
+do_execsql_test joinB-253 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  -  - 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-254 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  LEFT JOIN t2 USING(a,b)
+  FULL JOIN t3 USING(a,b)
+  FULL JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27 37  - 37  - 37
+  18 28  -  - 38  - 38
+  19 29  -  - 39 39 39
+}
+do_execsql_test joinB-255 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  LEFT JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  13  -  - 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  -  - 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-256 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL LEFT JOIN t2
+  NATURAL FULL JOIN t3
+  NATURAL FULL JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-257 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+}
+do_execsql_test joinB-258 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN t2 USING(a,b)
+  INNER JOIN t3 USING(a,b)
+  INNER JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-259 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+}
+do_execsql_test joinB-260 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN (t2 INNER JOIN t3 USING(a)) USING(a)
+  INNER JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  13  - 33 33 33  -
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-261 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  -  -  - 19
+}
+do_execsql_test joinB-262 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN t2 USING(a,b)
+  INNER JOIN t3 USING(a,b)
+  INNER JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  -  -  - 37
+  18 28  -  -  -  - 38
+  19 29  -  -  -  - 39
+}
+do_execsql_test joinB-263 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  -  -  - 19
+}
+do_execsql_test joinB-264 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL RIGHT JOIN t2
+  NATURAL INNER JOIN t3
+  NATURAL INNER JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-265 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  18  - 18 18  - 18
+}
+do_execsql_test joinB-266 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN t2 USING(a,b)
+  INNER JOIN t3 USING(a,b)
+  LEFT JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  18  - 38 38  - 38
+}
+do_execsql_test joinB-267 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  18  - 18 18  - 18
+}
+do_execsql_test joinB-268 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN (t2 INNER JOIN t3 USING(a)) USING(a)
+  LEFT JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 32 32 32  -  -
+  13  - 33 33 33  -
+  15 35 35 35 35 35
+  18  - 38 38  -  -
+}
+do_execsql_test joinB-269 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  - 18 18  - 18
+  19  -  -  -  - 19
+}
+do_execsql_test joinB-270 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN t2 USING(a,b)
+  INNER JOIN t3 USING(a,b)
+  LEFT JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  -  -  - 37
+  18 28  - 38 38  - 38
+  19 29  -  -  -  - 39
+}
+do_execsql_test joinB-271 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  - 18 18  - 18
+  19  -  -  -  - 19
+}
+do_execsql_test joinB-272 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL RIGHT JOIN t2
+  NATURAL INNER JOIN t3
+  NATURAL LEFT JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-273 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-274 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN t2 USING(a,b)
+  INNER JOIN t3 USING(a,b)
+  RIGHT JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  19  -  -  - 39 39
+}
+do_execsql_test joinB-275 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11  -  -  - 11  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-276 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN (t2 INNER JOIN t3 USING(a)) USING(a)
+  RIGHT JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11  -  -  - 31  -
+  13  - 33 33 33  -
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-277 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-278 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN t2 USING(a,b)
+  INNER JOIN t3 USING(a,b)
+  RIGHT JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  -  -  - 37
+  18 28  -  -  -  - 38
+  19 29  -  -  - 39 39
+}
+do_execsql_test joinB-279 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11  -  -  - 11  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-280 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL RIGHT JOIN t2
+  NATURAL INNER JOIN t3
+  NATURAL RIGHT JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-281 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  18  - 18 18  - 18
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-282 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN t2 USING(a,b)
+  INNER JOIN t3 USING(a,b)
+  FULL JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  18  - 38 38  - 38
+  19  -  -  - 39 39
+}
+do_execsql_test joinB-283 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11  -  -  - 11  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  18  - 18 18  - 18
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-284 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN (t2 INNER JOIN t3 USING(a)) USING(a)
+  FULL JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11  -  -  - 31  -
+  12 32 32 32  -  -
+  13  - 33 33 33  -
+  15 35 35 35 35 35
+  18  - 38 38  -  -
+}
+do_execsql_test joinB-285 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  - 18 18  - 18
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-286 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN t2 USING(a,b)
+  INNER JOIN t3 USING(a,b)
+  FULL JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  -  -  - 37
+  18 28  - 38 38  - 38
+  19 29  -  -  - 39 39
+}
+do_execsql_test joinB-287 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11  -  -  - 11  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  - 18 18  - 18
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-288 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL RIGHT JOIN t2
+  NATURAL INNER JOIN t3
+  NATURAL FULL JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-289 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+}
+do_execsql_test joinB-290 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN t2 USING(a,b)
+  LEFT JOIN t3 USING(a,b)
+  INNER JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-291 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+}
+do_execsql_test joinB-292 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN (t2 LEFT JOIN t3 USING(a)) USING(a)
+  INNER JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  13  - 33 33 33  -
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-293 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  -  -  - 19
+}
+do_execsql_test joinB-294 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN t2 USING(a,b)
+  LEFT JOIN t3 USING(a,b)
+  INNER JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  -  -  - 37
+  18 28  -  -  -  - 38
+  19 29  -  -  -  - 39
+}
+do_execsql_test joinB-295 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  -  -  - 19
+}
+do_execsql_test joinB-296 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL RIGHT JOIN t2
+  NATURAL LEFT JOIN t3
+  NATURAL INNER JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-297 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  18  - 18 18  - 18
+}
+do_execsql_test joinB-298 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN t2 USING(a,b)
+  LEFT JOIN t3 USING(a,b)
+  LEFT JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  18  - 38 38  - 38
+}
+do_execsql_test joinB-299 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  18  - 18 18  - 18
+}
+do_execsql_test joinB-300 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN (t2 LEFT JOIN t3 USING(a)) USING(a)
+  LEFT JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 32 32 32  -  -
+  13  - 33 33 33  -
+  15 35 35 35 35 35
+  18  - 38 38  -  -
+}
+do_execsql_test joinB-301 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  - 18 18  - 18
+  19  -  -  -  - 19
+}
+do_execsql_test joinB-302 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN t2 USING(a,b)
+  LEFT JOIN t3 USING(a,b)
+  LEFT JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  -  -  - 37
+  18 28  - 38 38  - 38
+  19 29  -  -  -  - 39
+}
+do_execsql_test joinB-303 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  - 18 18  - 18
+  19  -  -  -  - 19
+}
+do_execsql_test joinB-304 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL RIGHT JOIN t2
+  NATURAL LEFT JOIN t3
+  NATURAL LEFT JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-305 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-306 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN t2 USING(a,b)
+  LEFT JOIN t3 USING(a,b)
+  RIGHT JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  19  -  -  - 39 39
+}
+do_execsql_test joinB-307 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11  -  -  - 11  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-308 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN (t2 LEFT JOIN t3 USING(a)) USING(a)
+  RIGHT JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11  -  -  - 31  -
+  13  - 33 33 33  -
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-309 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-310 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN t2 USING(a,b)
+  LEFT JOIN t3 USING(a,b)
+  RIGHT JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  -  -  - 37
+  18 28  -  -  -  - 38
+  19 29  -  -  - 39 39
+}
+do_execsql_test joinB-311 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11  -  -  - 11  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-312 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL RIGHT JOIN t2
+  NATURAL LEFT JOIN t3
+  NATURAL RIGHT JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-313 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  18  - 18 18  - 18
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-314 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN t2 USING(a,b)
+  LEFT JOIN t3 USING(a,b)
+  FULL JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  18  - 38 38  - 38
+  19  -  -  - 39 39
+}
+do_execsql_test joinB-315 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11  -  -  - 11  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  18  - 18 18  - 18
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-316 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN (t2 LEFT JOIN t3 USING(a)) USING(a)
+  FULL JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11  -  -  - 31  -
+  12 32 32 32  -  -
+  13  - 33 33 33  -
+  15 35 35 35 35 35
+  18  - 38 38  -  -
+}
+do_execsql_test joinB-317 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  - 18 18  - 18
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-318 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN t2 USING(a,b)
+  LEFT JOIN t3 USING(a,b)
+  FULL JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  -  -  - 37
+  18 28  - 38 38  - 38
+  19 29  -  -  - 39 39
+}
+do_execsql_test joinB-319 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11  -  -  - 11  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  - 18 18  - 18
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-320 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL RIGHT JOIN t2
+  NATURAL LEFT JOIN t3
+  NATURAL FULL JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-321 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-322 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN t2 USING(a,b)
+  RIGHT JOIN t3 USING(a,b)
+  INNER JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  19  -  - 39 39 39
+}
+do_execsql_test joinB-323 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11  -  - 11 11  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-324 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN (t2 RIGHT JOIN t3 USING(a)) USING(a)
+  INNER JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  - 31 31  -
+  13  - 33 33 33  -
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-325 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-326 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN t2 USING(a,b)
+  RIGHT JOIN t3 USING(a,b)
+  INNER JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  -  -  - 37
+  18 28  -  -  -  - 38
+  19 29  -  - 39 39 39
+}
+do_execsql_test joinB-327 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11  -  - 11 11  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-328 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL RIGHT JOIN t2
+  NATURAL RIGHT JOIN t3
+  NATURAL INNER JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-329 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-330 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN t2 USING(a,b)
+  RIGHT JOIN t3 USING(a,b)
+  LEFT JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  17  -  - 37  - 37
+  18  - 38 38  - 38
+  19  -  - 39 39 39
+}
+do_execsql_test joinB-331 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11  -  - 11 11  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17  -  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-332 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN (t2 RIGHT JOIN t3 USING(a)) USING(a)
+  LEFT JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  - 31 31  -
+  12 32 32 32  -  -
+  13  - 33 33 33  -
+  15 35 35 35 35 35
+  17 37  - 37  -  -
+  18  - 38 38  -  -
+}
+do_execsql_test joinB-333 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-334 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN t2 USING(a,b)
+  RIGHT JOIN t3 USING(a,b)
+  LEFT JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  - 37  - 37
+  18 28  - 38 38  - 38
+  19 29  -  - 39 39 39
+}
+do_execsql_test joinB-335 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11  -  - 11 11  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17  -  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-336 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL RIGHT JOIN t2
+  NATURAL RIGHT JOIN t3
+  NATURAL LEFT JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-337 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-338 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN t2 USING(a,b)
+  RIGHT JOIN t3 USING(a,b)
+  RIGHT JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  19  -  - 39 39 39
+}
+do_execsql_test joinB-339 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11  -  - 11 11  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-340 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN (t2 RIGHT JOIN t3 USING(a)) USING(a)
+  RIGHT JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  - 31 31  -
+  13  - 33 33 33  -
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-341 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-342 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN t2 USING(a,b)
+  RIGHT JOIN t3 USING(a,b)
+  RIGHT JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  -  -  - 37
+  18 28  -  -  -  - 38
+  19 29  -  - 39 39 39
+}
+do_execsql_test joinB-343 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11  -  - 11 11  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-344 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL RIGHT JOIN t2
+  NATURAL RIGHT JOIN t3
+  NATURAL RIGHT JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-345 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-346 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN t2 USING(a,b)
+  RIGHT JOIN t3 USING(a,b)
+  FULL JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  17  -  - 37  - 37
+  18  - 38 38  - 38
+  19  -  - 39 39 39
+}
+do_execsql_test joinB-347 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11  -  - 11 11  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17  -  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-348 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN (t2 RIGHT JOIN t3 USING(a)) USING(a)
+  FULL JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  - 31 31  -
+  12 32 32 32  -  -
+  13  - 33 33 33  -
+  15 35 35 35 35 35
+  17 37  - 37  -  -
+  18  - 38 38  -  -
+}
+do_execsql_test joinB-349 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-350 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN t2 USING(a,b)
+  RIGHT JOIN t3 USING(a,b)
+  FULL JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  - 37  - 37
+  18 28  - 38 38  - 38
+  19 29  -  - 39 39 39
+}
+do_execsql_test joinB-351 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11  -  - 11 11  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17  -  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-352 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL RIGHT JOIN t2
+  NATURAL RIGHT JOIN t3
+  NATURAL FULL JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-353 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-354 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN t2 USING(a,b)
+  FULL JOIN t3 USING(a,b)
+  INNER JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  19  -  - 39 39 39
+}
+do_execsql_test joinB-355 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11  -  - 11 11  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-356 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN (t2 FULL JOIN t3 USING(a)) USING(a)
+  INNER JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  - 31 31  -
+  13  - 33 33 33  -
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-357 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-358 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN t2 USING(a,b)
+  FULL JOIN t3 USING(a,b)
+  INNER JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  -  -  - 37
+  18 28  -  -  -  - 38
+  19 29  -  - 39 39 39
+}
+do_execsql_test joinB-359 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11  -  - 11 11  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-360 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL RIGHT JOIN t2
+  NATURAL FULL JOIN t3
+  NATURAL INNER JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-361 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-362 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN t2 USING(a,b)
+  FULL JOIN t3 USING(a,b)
+  LEFT JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  17  -  - 37  - 37
+  18  - 38 38  - 38
+  19  -  - 39 39 39
+}
+do_execsql_test joinB-363 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+   -  -  -  -  -  -
+  11  -  - 11 11  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17  -  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-364 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN (t2 FULL JOIN t3 USING(a)) USING(a)
+  LEFT JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  - 31 31  -
+  12 32 32 32  -  -
+  13  - 33 33 33  -
+  15 35 35 35 35 35
+  17 37  - 37  -  -
+  18  - 38 38  -  -
+}
+do_execsql_test joinB-365 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-366 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN t2 USING(a,b)
+  FULL JOIN t3 USING(a,b)
+  LEFT JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  - 37  - 37
+  18 28  - 38 38  - 38
+  19 29  -  - 39 39 39
+}
+do_execsql_test joinB-367 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+   -  -  -  -  -  -
+  11  -  - 11 11  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17  -  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-368 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL RIGHT JOIN t2
+  NATURAL FULL JOIN t3
+  NATURAL LEFT JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-369 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-370 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN t2 USING(a,b)
+  FULL JOIN t3 USING(a,b)
+  RIGHT JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  19  -  - 39 39 39
+}
+do_execsql_test joinB-371 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11  -  - 11 11  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-372 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN (t2 FULL JOIN t3 USING(a)) USING(a)
+  RIGHT JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  - 31 31  -
+  13  - 33 33 33  -
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-373 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-374 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN t2 USING(a,b)
+  FULL JOIN t3 USING(a,b)
+  RIGHT JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  -  -  - 37
+  18 28  -  -  -  - 38
+  19 29  -  - 39 39 39
+}
+do_execsql_test joinB-375 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11  -  - 11 11  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-376 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL RIGHT JOIN t2
+  NATURAL FULL JOIN t3
+  NATURAL RIGHT JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-377 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-378 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN t2 USING(a,b)
+  FULL JOIN t3 USING(a,b)
+  FULL JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  17  -  - 37  - 37
+  18  - 38 38  - 38
+  19  -  - 39 39 39
+}
+do_execsql_test joinB-379 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+   -  -  -  -  -  -
+  11  -  - 11 11  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17  -  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-380 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN (t2 FULL JOIN t3 USING(a)) USING(a)
+  FULL JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  - 31 31  -
+  12 32 32 32  -  -
+  13  - 33 33 33  -
+  15 35 35 35 35 35
+  17 37  - 37  -  -
+  18  - 38 38  -  -
+}
+do_execsql_test joinB-381 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-382 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  RIGHT JOIN t2 USING(a,b)
+  FULL JOIN t3 USING(a,b)
+  FULL JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  - 37  - 37
+  18 28  - 38 38  - 38
+  19 29  -  - 39 39 39
+}
+do_execsql_test joinB-383 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  RIGHT JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+   -  -  -  -  -  -
+  11  -  - 11 11  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17  -  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-384 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL RIGHT JOIN t2
+  NATURAL FULL JOIN t3
+  NATURAL FULL JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-385 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+}
+do_execsql_test joinB-386 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  FULL JOIN t2 USING(a,b)
+  INNER JOIN t3 USING(a,b)
+  INNER JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-387 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+}
+do_execsql_test joinB-388 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  FULL JOIN (t2 INNER JOIN t3 USING(a)) USING(a)
+  INNER JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  -  - 31  -
+  13  - 33 33 33  -
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-389 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  -  -  - 19
+}
+do_execsql_test joinB-390 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  FULL JOIN t2 USING(a,b)
+  INNER JOIN t3 USING(a,b)
+  INNER JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  -  -  - 37
+  18 28  -  -  -  - 38
+  19 29  -  -  -  - 39
+}
+do_execsql_test joinB-391 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  -  -  - 19
+}
+do_execsql_test joinB-392 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL FULL JOIN t2
+  NATURAL INNER JOIN t3
+  NATURAL INNER JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-393 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+}
+do_execsql_test joinB-394 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  FULL JOIN t2 USING(a,b)
+  INNER JOIN t3 USING(a,b)
+  LEFT JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  17 37  - 37  - 37
+  18  - 38 38  - 38
+}
+do_execsql_test joinB-395 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+}
+do_execsql_test joinB-396 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  FULL JOIN (t2 INNER JOIN t3 USING(a)) USING(a)
+  LEFT JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  -  - 31  -
+  12 32 32 32  -  -
+  13  - 33 33 33  -
+  15 35 35 35 35 35
+  17 37  -  -  -  -
+  18  - 38 38  -  -
+}
+do_execsql_test joinB-397 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  -  -  - 19
+}
+do_execsql_test joinB-398 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  FULL JOIN t2 USING(a,b)
+  INNER JOIN t3 USING(a,b)
+  LEFT JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27 37  - 37  - 37
+  18 28  - 38 38  - 38
+  19 29  -  -  -  - 39
+}
+do_execsql_test joinB-399 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  -  -  - 19
+}
+do_execsql_test joinB-400 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL FULL JOIN t2
+  NATURAL INNER JOIN t3
+  NATURAL LEFT JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-401 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-402 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  FULL JOIN t2 USING(a,b)
+  INNER JOIN t3 USING(a,b)
+  RIGHT JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  19  -  -  - 39 39
+}
+do_execsql_test joinB-403 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-404 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  FULL JOIN (t2 INNER JOIN t3 USING(a)) USING(a)
+  RIGHT JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  -  - 31  -
+  13  - 33 33 33  -
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-405 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-406 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  FULL JOIN t2 USING(a,b)
+  INNER JOIN t3 USING(a,b)
+  RIGHT JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  -  -  - 37
+  18 28  -  -  -  - 38
+  19 29  -  -  - 39 39
+}
+do_execsql_test joinB-407 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-408 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL FULL JOIN t2
+  NATURAL INNER JOIN t3
+  NATURAL RIGHT JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-409 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-410 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  FULL JOIN t2 USING(a,b)
+  INNER JOIN t3 USING(a,b)
+  FULL JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  17 37  - 37  - 37
+  18  - 38 38  - 38
+  19  -  -  - 39 39
+}
+do_execsql_test joinB-411 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-412 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  FULL JOIN (t2 INNER JOIN t3 USING(a)) USING(a)
+  FULL JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  -  - 31  -
+  12 32 32 32  -  -
+  13  - 33 33 33  -
+  15 35 35 35 35 35
+  17 37  -  -  -  -
+  18  - 38 38  -  -
+}
+do_execsql_test joinB-413 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-414 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  FULL JOIN t2 USING(a,b)
+  INNER JOIN t3 USING(a,b)
+  FULL JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27 37  - 37  - 37
+  18 28  - 38 38  - 38
+  19 29  -  -  - 39 39
+}
+do_execsql_test joinB-415 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  INNER JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-416 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL FULL JOIN t2
+  NATURAL INNER JOIN t3
+  NATURAL FULL JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-417 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+}
+do_execsql_test joinB-418 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  FULL JOIN t2 USING(a,b)
+  LEFT JOIN t3 USING(a,b)
+  INNER JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-419 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+}
+do_execsql_test joinB-420 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  FULL JOIN (t2 LEFT JOIN t3 USING(a)) USING(a)
+  INNER JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  -  - 31  -
+  13  - 33 33 33  -
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-421 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  -  -  - 19
+}
+do_execsql_test joinB-422 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  FULL JOIN t2 USING(a,b)
+  LEFT JOIN t3 USING(a,b)
+  INNER JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  -  -  - 37
+  18 28  -  -  -  - 38
+  19 29  -  -  -  - 39
+}
+do_execsql_test joinB-423 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  -  -  - 19
+}
+do_execsql_test joinB-424 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL FULL JOIN t2
+  NATURAL LEFT JOIN t3
+  NATURAL INNER JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-425 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+}
+do_execsql_test joinB-426 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  FULL JOIN t2 USING(a,b)
+  LEFT JOIN t3 USING(a,b)
+  LEFT JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  17 37  - 37  - 37
+  18  - 38 38  - 38
+}
+do_execsql_test joinB-427 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+}
+do_execsql_test joinB-428 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  FULL JOIN (t2 LEFT JOIN t3 USING(a)) USING(a)
+  LEFT JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  -  - 31  -
+  12 32 32 32  -  -
+  13  - 33 33 33  -
+  15 35 35 35 35 35
+  17 37  -  -  -  -
+  18  - 38 38  -  -
+}
+do_execsql_test joinB-429 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  -  -  - 19
+}
+do_execsql_test joinB-430 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  FULL JOIN t2 USING(a,b)
+  LEFT JOIN t3 USING(a,b)
+  LEFT JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27 37  - 37  - 37
+  18 28  - 38 38  - 38
+  19 29  -  -  -  - 39
+}
+do_execsql_test joinB-431 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  -  -  - 19
+}
+do_execsql_test joinB-432 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL FULL JOIN t2
+  NATURAL LEFT JOIN t3
+  NATURAL LEFT JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-433 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-434 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  FULL JOIN t2 USING(a,b)
+  LEFT JOIN t3 USING(a,b)
+  RIGHT JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  19  -  -  - 39 39
+}
+do_execsql_test joinB-435 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-436 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  FULL JOIN (t2 LEFT JOIN t3 USING(a)) USING(a)
+  RIGHT JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  -  - 31  -
+  13  - 33 33 33  -
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-437 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-438 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  FULL JOIN t2 USING(a,b)
+  LEFT JOIN t3 USING(a,b)
+  RIGHT JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  -  -  - 37
+  18 28  -  -  -  - 38
+  19 29  -  -  - 39 39
+}
+do_execsql_test joinB-439 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-440 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL FULL JOIN t2
+  NATURAL LEFT JOIN t3
+  NATURAL RIGHT JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-441 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-442 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  FULL JOIN t2 USING(a,b)
+  LEFT JOIN t3 USING(a,b)
+  FULL JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  17 37  - 37  - 37
+  18  - 38 38  - 38
+  19  -  -  - 39 39
+}
+do_execsql_test joinB-443 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-444 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  FULL JOIN (t2 LEFT JOIN t3 USING(a)) USING(a)
+  FULL JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  -  - 31  -
+  12 32 32 32  -  -
+  13  - 33 33 33  -
+  15 35 35 35 35 35
+  17 37  -  -  -  -
+  18  - 38 38  -  -
+}
+do_execsql_test joinB-445 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-446 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  FULL JOIN t2 USING(a,b)
+  LEFT JOIN t3 USING(a,b)
+  FULL JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27 37  - 37  - 37
+  18 28  - 38 38  - 38
+  19 29  -  -  - 39 39
+}
+do_execsql_test joinB-447 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  LEFT JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  -  - 19 19
+}
+do_execsql_test joinB-448 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL FULL JOIN t2
+  NATURAL LEFT JOIN t3
+  NATURAL FULL JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-449 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-450 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  FULL JOIN t2 USING(a,b)
+  RIGHT JOIN t3 USING(a,b)
+  INNER JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  19  -  - 39 39 39
+}
+do_execsql_test joinB-451 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-452 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  FULL JOIN (t2 RIGHT JOIN t3 USING(a)) USING(a)
+  INNER JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  - 31 31  -
+  13  - 33 33 33  -
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-453 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-454 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  FULL JOIN t2 USING(a,b)
+  RIGHT JOIN t3 USING(a,b)
+  INNER JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  -  -  - 37
+  18 28  -  -  -  - 38
+  19 29  -  - 39 39 39
+}
+do_execsql_test joinB-455 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-456 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL FULL JOIN t2
+  NATURAL RIGHT JOIN t3
+  NATURAL INNER JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-457 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-458 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  FULL JOIN t2 USING(a,b)
+  RIGHT JOIN t3 USING(a,b)
+  LEFT JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  17 37  - 37  - 37
+  18  - 38 38  - 38
+  19  -  - 39 39 39
+}
+do_execsql_test joinB-459 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-460 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  FULL JOIN (t2 RIGHT JOIN t3 USING(a)) USING(a)
+  LEFT JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  - 31 31  -
+  12 32 32 32  -  -
+  13  - 33 33 33  -
+  15 35 35 35 35 35
+  17 37  - 37  -  -
+  18  - 38 38  -  -
+}
+do_execsql_test joinB-461 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-462 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  FULL JOIN t2 USING(a,b)
+  RIGHT JOIN t3 USING(a,b)
+  LEFT JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27 37  - 37  - 37
+  18 28  - 38 38  - 38
+  19 29  -  - 39 39 39
+}
+do_execsql_test joinB-463 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-464 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL FULL JOIN t2
+  NATURAL RIGHT JOIN t3
+  NATURAL LEFT JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-465 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-466 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  FULL JOIN t2 USING(a,b)
+  RIGHT JOIN t3 USING(a,b)
+  RIGHT JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  19  -  - 39 39 39
+}
+do_execsql_test joinB-467 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-468 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  FULL JOIN (t2 RIGHT JOIN t3 USING(a)) USING(a)
+  RIGHT JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  - 31 31  -
+  13  - 33 33 33  -
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-469 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-470 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  FULL JOIN t2 USING(a,b)
+  RIGHT JOIN t3 USING(a,b)
+  RIGHT JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  -  -  - 37
+  18 28  -  -  -  - 38
+  19 29  -  - 39 39 39
+}
+do_execsql_test joinB-471 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-472 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL FULL JOIN t2
+  NATURAL RIGHT JOIN t3
+  NATURAL RIGHT JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-473 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-474 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  FULL JOIN t2 USING(a,b)
+  RIGHT JOIN t3 USING(a,b)
+  FULL JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  17 37  - 37  - 37
+  18  - 38 38  - 38
+  19  -  - 39 39 39
+}
+do_execsql_test joinB-475 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-476 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  FULL JOIN (t2 RIGHT JOIN t3 USING(a)) USING(a)
+  FULL JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  - 31 31  -
+  12 32 32 32  -  -
+  13  - 33 33 33  -
+  15 35 35 35 35 35
+  17 37  - 37  -  -
+  18  - 38 38  -  -
+}
+do_execsql_test joinB-477 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-478 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  FULL JOIN t2 USING(a,b)
+  RIGHT JOIN t3 USING(a,b)
+  FULL JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27 37  - 37  - 37
+  18 28  - 38 38  - 38
+  19 29  -  - 39 39 39
+}
+do_execsql_test joinB-479 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  RIGHT JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-480 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL FULL JOIN t2
+  NATURAL RIGHT JOIN t3
+  NATURAL FULL JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-481 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-482 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  FULL JOIN t2 USING(a,b)
+  FULL JOIN t3 USING(a,b)
+  INNER JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  19  -  - 39 39 39
+}
+do_execsql_test joinB-483 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-484 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  FULL JOIN (t2 FULL JOIN t3 USING(a)) USING(a)
+  INNER JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  - 31 31  -
+  13  - 33 33 33  -
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-485 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-486 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  FULL JOIN t2 USING(a,b)
+  FULL JOIN t3 USING(a,b)
+  INNER JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  -  -  - 37
+  18 28  -  -  -  - 38
+  19 29  -  - 39 39 39
+}
+do_execsql_test joinB-487 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  INNER JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-488 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL FULL JOIN t2
+  NATURAL FULL JOIN t3
+  NATURAL INNER JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-489 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-490 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  FULL JOIN t2 USING(a,b)
+  FULL JOIN t3 USING(a,b)
+  LEFT JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  17 37  - 37  - 37
+  18  - 38 38  - 38
+  19  -  - 39 39 39
+}
+do_execsql_test joinB-491 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+   -  -  -  -  -  -
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-492 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  FULL JOIN (t2 FULL JOIN t3 USING(a)) USING(a)
+  LEFT JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  - 31 31  -
+  12 32 32 32  -  -
+  13  - 33 33 33  -
+  15 35 35 35 35 35
+  17 37  - 37  -  -
+  18  - 38 38  -  -
+}
+do_execsql_test joinB-493 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-494 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  FULL JOIN t2 USING(a,b)
+  FULL JOIN t3 USING(a,b)
+  LEFT JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27 37  - 37  - 37
+  18 28  - 38 38  - 38
+  19 29  -  - 39 39 39
+}
+do_execsql_test joinB-495 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  LEFT JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+   -  -  -  -  -  -
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-496 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL FULL JOIN t2
+  NATURAL FULL JOIN t3
+  NATURAL LEFT JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-497 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-498 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  FULL JOIN t2 USING(a,b)
+  FULL JOIN t3 USING(a,b)
+  RIGHT JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  19  -  - 39 39 39
+}
+do_execsql_test joinB-499 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-500 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  FULL JOIN (t2 FULL JOIN t3 USING(a)) USING(a)
+  RIGHT JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  - 31 31  -
+  13  - 33 33 33  -
+  15 35 35 35 35 35
+}
+do_execsql_test joinB-501 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-502 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  FULL JOIN t2 USING(a,b)
+  FULL JOIN t3 USING(a,b)
+  RIGHT JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27  -  -  -  - 37
+  18 28  -  -  -  - 38
+  19 29  -  - 39 39 39
+}
+do_execsql_test joinB-503 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  RIGHT JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17  -  -  -  - 17
+  18  -  -  -  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-504 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL FULL JOIN t2
+  NATURAL FULL JOIN t3
+  NATURAL RIGHT JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+do_execsql_test joinB-505 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  INNER JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-506 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  FULL JOIN t2 USING(a,b)
+  FULL JOIN t3 USING(a,b)
+  FULL JOIN t4 USING(a,b)
+  INNER JOIN t5 USING(a,b)
+  WHERE a<>13
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 35 35 35 35 35
+  17 37  - 37  - 37
+  18  - 38 38  - 38
+  19  -  - 39 39 39
+}
+do_execsql_test joinB-507 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  LEFT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+   -  -  -  -  -  -
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-508 {
+  SELECT a, c, d, e, f, g
+  FROM t1
+  FULL JOIN (t2 FULL JOIN t3 USING(a)) USING(a)
+  FULL JOIN (t4 LEFT JOIN t5 USING(a)) USING(a)
+  WHERE a<=18
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 31  - 31 31  -
+  12 32 32 32  -  -
+  13  - 33 33 33  -
+  15 35 35 35 35 35
+  17 37  - 37  -  -
+  18  - 38 38  -  -
+}
+do_execsql_test joinB-509 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  RIGHT JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-510 {
+  SELECT a, b, c, d, e, f, g
+  FROM t1
+  FULL JOIN t2 USING(a,b)
+  FULL JOIN t3 USING(a,b)
+  FULL JOIN t4 USING(a,b)
+  RIGHT JOIN t5 USING(a,b)
+  WHERE d<>33 OR d IS NULL
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 25 35 35 35 35 35
+  17 27 37  - 37  - 37
+  18 28  - 38 38  - 38
+  19 29  -  - 39 39 39
+}
+do_execsql_test joinB-511 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1
+  FULL JOIN t2 USING(a)
+  FULL JOIN t3 USING(a)
+  FULL JOIN t4 USING(a)
+  FULL JOIN t5 USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+   -  -  -  -  -  -
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+}
+do_execsql_test joinB-512 {
+  SELECT b, c, d, e, f, g
+  FROM t1
+  NATURAL FULL JOIN t2
+  NATURAL FULL JOIN t3
+  NATURAL FULL JOIN t4
+  NATURAL FULL JOIN t5
+  WHERE b BETWEEN 12 AND 17
+  ORDER BY 1 NULLS FIRST;
+} {
+}
+finish_test
+
+##############################################################################
+# Here is the original TCL script that generated the psql input file:
+#
+# 
+# puts "
+# \\pset border off
+# \\pset tuples_only on
+# \\pset null -
+# 
+# DROP TABLE IF EXISTS t1;
+# DROP TABLE IF EXISTS t2;
+# DROP TABLE IF EXISTS t3;
+# DROP TABLE IF EXISTS t4;
+# DROP TABLE IF EXISTS t5;
+# CREATE TABLE t1(a INT, b INT, c INT);
+# CREATE TABLE t2(a INT, b INT, d INT);
+# CREATE TABLE t3(a INT, b INT, e INT);
+# CREATE TABLE t4(a INT, b INT, f INT);
+# CREATE TABLE t5(a INT, b INT, g INT);
+# INSERT INTO t1 VALUES(11,21,31),(12,22,32),(15,25,35),(17,27,37);
+# INSERT INTO t2 VALUES(12,22,32),(13,23,33),(15,25,35),(18,28,38),(NULL,NULL,36);
+# INSERT INTO t4 VALUES(11,21,31),(13,23,33),(15,25,35),(19,29,39);
+# INSERT INTO t3 SELECT * FROM t1 UNION SELECT * FROM t2 UNION SELECT * FROM t4;
+# INSERT INTO t5 SELECT * FROM t3 WHERE a>=15;
+# "
+# 
+# proc echo {prefix txt} {
+#   regsub -all {\n} $txt \n$prefix txt
+#   puts "$prefix$txt"
+# }
+# 
+# set n 0
+# set k 0
+# foreach j1 {INNER LEFT RIGHT FULL} {
+#   foreach j2 {INNER LEFT RIGHT FULL} {
+#     foreach j3 {INNER LEFT RIGHT FULL} {
+#       foreach j4 {INNER LEFT RIGHT FULL} {
+# 
+# incr n
+# incr k
+# set q1 ""
+# append q1 "SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a\n"
+# append q1 "  FROM t1\n"
+# append q1 "       $j1 JOIN t2 USING(a)\n"
+# append q1 "       $j2 JOIN t3 USING(a)\n"
+# append q1 "       $j3 JOIN t4 USING(a)\n"
+# append q1 "       $j4 JOIN t5 USING(a)\n"
+# append q1 " ORDER BY 1 NULLS FIRST;"
+# 
+# echo "\\qecho " "do_execsql_test joinB-$n \{"
+# echo "\\qecho X  " $q1
+# echo "\\qecho " "\} \{"
+# puts $q1
+# echo "\\qecho " "\}"
+# 
+# switch [expr {$k%4}] {
+#   0 {
+#     set q2 ""
+#     append q2 "SELECT b, c, d, e, f, g\n"
+#     append q2 "  FROM t1\n"
+#     append q2 "       NATURAL $j1 JOIN t2\n"
+#     append q2 "       NATURAL $j2 JOIN t3\n"
+#     append q2 "       NATURAL $j3 JOIN t4\n"
+#     append q2 "       NATURAL $j4 JOIN t5\n"
+#     append q2 " WHERE b BETWEEN 12 AND 17\n"
+#     append q2 " ORDER BY 1 NULLS FIRST;"
+#     incr n
+#     echo "\\qecho " "do_execsql_test joinB-$n \{"
+#     echo "\\qecho X  " $q2
+#     echo "\\qecho " "\} \{"
+#     puts $q2
+#     echo "\\qecho " "\}"
+#   }
+#   1 {
+#     set q2 ""
+#     append q2 "SELECT a, c, d, e, f, g\n"
+#     append q2 "  FROM t1\n"
+#     append q2 "       $j1 JOIN t2 USING(a,b)\n"
+#     append q2 "       $j2 JOIN t3 USING(a,b)\n"
+#     append q2 "       $j3 JOIN t4 USING(a,b)\n"
+#     append q2 "       $j4 JOIN t5 USING(a,b)\n"
+#     append q2 " WHERE a<>13\n"
+#     append q2 " ORDER BY 1 NULLS FIRST;"
+#     incr n
+#     echo "\\qecho " "do_execsql_test joinB-$n \{"
+#     echo "\\qecho X  " $q2
+#     echo "\\qecho " "\} \{"
+#     puts $q2
+#     echo "\\qecho " "\}"
+#   }
+#   2 {
+#     set q2 ""
+#     append q2 "SELECT a, c, d, e, f, g\n"
+#     append q2 "  FROM t1\n"
+#     append q2 "       $j1 JOIN (t2 $j2 JOIN t3 USING(a)) USING(a)\n"
+#     append q2 "       $j3 JOIN (t4 $j4 JOIN t5 USING(a)) USING(a)\n"
+#     append q2 " WHERE a<=18\n"
+#     append q2 " ORDER BY 1 NULLS FIRST;"
+#     incr n
+#     echo "\\qecho " "do_execsql_test joinB-$n \{"
+#     echo "\\qecho X  " $q2
+#     echo "\\qecho " "\} \{"
+#     puts $q2
+#     echo "\\qecho " "\}"
+#   }
+#   3 {
+#     set q2 ""
+#     append q2 "SELECT a, b, c, d, e, f, g\n"
+#     append q2 "  FROM t1\n"
+#     append q2 "       $j1 JOIN t2 USING(a,b)\n"
+#     append q2 "       $j2 JOIN t3 USING(a,b)\n"
+#     append q2 "       $j3 JOIN t4 USING(a,b)\n"
+#     append q2 "       $j4 JOIN t5 USING(a,b)\n"
+#     append q2 " WHERE d<>33 OR d IS NULL\n"
+#     append q2 " ORDER BY 1 NULLS FIRST;"
+#     incr n
+#     echo "\\qecho " "do_execsql_test joinB-$n \{"
+#     echo "\\qecho X  " $q2
+#     echo "\\qecho " "\} \{"
+#     puts $q2
+#     echo "\\qecho " "\}"
+#   }
+# }
+# 
+#       }
+#     }
+#   }
+# }
+##############################################################################
diff --git a/test/joinC.test b/test/joinC.test
new file mode 100644
index 0000000000000000000000000000000000000000..a6f9395851f80992ef319a3c16b4ce3d56ac7b47
--- /dev/null
+++ b/test/joinC.test
@@ -0,0 +1,4594 @@
+# 2022-04-19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements tests for JOINs.
+#
+# The test case output is all generated by PostgreSQL 14.  This test module
+# was created as follows:
+#
+#   1.   Run a TCL script (included at the bottom of this file) that
+#        generates an input script for "psql" that will run man
+#        diverse tests on joins.
+#
+#   2.   Run the script from step (1) through psql and collect the
+#        output.
+#
+#   3.   Make a few minor global search-and-replace operations to convert
+#        the psql output into a form suitable for this test module.
+#
+#   4.   Add this header, and the script content at the footer.
+#
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+db nullvalue -
+db eval {
+  DROP TABLE IF EXISTS t1;
+  DROP TABLE IF EXISTS t2;
+  DROP TABLE IF EXISTS t3;
+  DROP TABLE IF EXISTS t4;
+  DROP TABLE IF EXISTS t5;
+  CREATE TABLE t1(a INT, b INT, c INT);
+  CREATE TABLE t2(a INT, b INT, d INT);
+  CREATE TABLE t3(a INT, b INT, e INT);
+  CREATE TABLE t4(a INT, b INT, f INT);
+  CREATE TABLE t5(a INT, b INT, g INT);
+  INSERT INTO t1 VALUES(11,21,31),(12,22,32),(15,25,35),(17,27,37);
+  INSERT INTO t2 VALUES(12,22,32),(13,23,33),(15,25,35),(18,28,38),
+                       (NULL,NULL,36);
+  INSERT INTO t4 VALUES(11,21,31),(13,23,33),(15,25,35),(19,29,39);
+  INSERT INTO t3 SELECT * FROM t1 UNION SELECT * FROM t2 UNION SELECT * FROM t4;
+  INSERT INTO t5 SELECT * FROM t3 WHERE a>=15;
+}
+do_execsql_test joinC-1 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 INNER JOIN (
+  t3 INNER JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+
+}
+do_execsql_test joinC-2 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 INNER JOIN (
+  t3 INNER JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+
+}
+do_execsql_test joinC-3 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 INNER JOIN (
+  t3 INNER JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+
+}
+do_execsql_test joinC-4 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 INNER JOIN (
+  t3 INNER JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+
+}
+do_execsql_test joinC-5 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 INNER JOIN (
+  t3 LEFT JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+
+}
+do_execsql_test joinC-6 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 INNER JOIN (
+  t3 LEFT JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+
+}
+do_execsql_test joinC-7 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 INNER JOIN (
+  t3 LEFT JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+
+}
+do_execsql_test joinC-8 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 INNER JOIN (
+  t3 LEFT JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+
+}
+do_execsql_test joinC-9 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 INNER JOIN (
+  t3 RIGHT JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+
+}
+do_execsql_test joinC-10 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 INNER JOIN (
+  t3 RIGHT JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+
+}
+do_execsql_test joinC-11 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 INNER JOIN (
+  t3 RIGHT JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+
+}
+do_execsql_test joinC-12 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 INNER JOIN (
+  t3 RIGHT JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+
+}
+do_execsql_test joinC-13 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 INNER JOIN (
+  t3 FULL JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+
+}
+do_execsql_test joinC-14 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 INNER JOIN (
+  t3 FULL JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+
+}
+do_execsql_test joinC-15 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 INNER JOIN (
+  t3 FULL JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+
+}
+do_execsql_test joinC-16 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 INNER JOIN (
+  t3 FULL JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+
+}
+do_execsql_test joinC-17 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 LEFT JOIN (
+  t3 INNER JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 12 12  -  -  -
+  15 15 15 15 15 15
+
+}
+do_execsql_test joinC-18 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 LEFT JOIN (
+  t3 INNER JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 12 12  -  -  -
+  15 15 15 15 15 15
+
+}
+do_execsql_test joinC-19 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 LEFT JOIN (
+  t3 INNER JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 12 12  -  -  -
+  15 15 15 15 15 15
+
+}
+do_execsql_test joinC-20 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 LEFT JOIN (
+  t3 INNER JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 12 12  -  -  -
+  15 15 15 15 15 15
+
+}
+do_execsql_test joinC-21 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 LEFT JOIN (
+  t3 LEFT JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+
+}
+do_execsql_test joinC-22 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 LEFT JOIN (
+  t3 LEFT JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+
+}
+do_execsql_test joinC-23 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 LEFT JOIN (
+  t3 LEFT JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+
+}
+do_execsql_test joinC-24 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 LEFT JOIN (
+  t3 LEFT JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+
+}
+do_execsql_test joinC-25 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 LEFT JOIN (
+  t3 RIGHT JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 12 12  -  -  -
+  15 15 15 15 15 15
+
+}
+do_execsql_test joinC-26 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 LEFT JOIN (
+  t3 RIGHT JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 12 12  -  -  -
+  15 15 15 15 15 15
+
+}
+do_execsql_test joinC-27 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 LEFT JOIN (
+  t3 RIGHT JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 12 12  -  -  -
+  15 15 15 15 15 15
+
+}
+do_execsql_test joinC-28 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 LEFT JOIN (
+  t3 RIGHT JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 12 12  -  -  -
+  15 15 15 15 15 15
+
+}
+do_execsql_test joinC-29 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 LEFT JOIN (
+  t3 FULL JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+
+}
+do_execsql_test joinC-30 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 LEFT JOIN (
+  t3 FULL JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+
+}
+do_execsql_test joinC-31 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 LEFT JOIN (
+  t3 FULL JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+
+}
+do_execsql_test joinC-32 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 LEFT JOIN (
+  t3 FULL JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+
+}
+do_execsql_test joinC-33 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 RIGHT JOIN (
+  t3 INNER JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+
+}
+do_execsql_test joinC-34 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 RIGHT JOIN (
+  t3 INNER JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  15 15 15 15 15 15
+
+}
+do_execsql_test joinC-35 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 RIGHT JOIN (
+  t3 INNER JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+
+}
+do_execsql_test joinC-36 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 RIGHT JOIN (
+  t3 INNER JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+
+}
+do_execsql_test joinC-37 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 RIGHT JOIN (
+  t3 LEFT JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11  -  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  - 17  -  -
+
+}
+do_execsql_test joinC-38 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 RIGHT JOIN (
+  t3 LEFT JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  - 17  -  -
+
+}
+do_execsql_test joinC-39 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 RIGHT JOIN (
+  t3 LEFT JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11  -  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+
+}
+do_execsql_test joinC-40 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 RIGHT JOIN (
+  t3 LEFT JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+
+}
+do_execsql_test joinC-41 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 RIGHT JOIN (
+  t3 RIGHT JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+
+}
+do_execsql_test joinC-42 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 RIGHT JOIN (
+  t3 RIGHT JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  15 15 15 15 15 15
+
+}
+do_execsql_test joinC-43 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 RIGHT JOIN (
+  t3 RIGHT JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+
+}
+do_execsql_test joinC-44 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 RIGHT JOIN (
+  t3 RIGHT JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+
+}
+do_execsql_test joinC-45 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 RIGHT JOIN (
+  t3 FULL JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11  -  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  - 17  -  -
+
+}
+do_execsql_test joinC-46 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 RIGHT JOIN (
+  t3 FULL JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  - 17  -  -
+
+}
+do_execsql_test joinC-47 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 RIGHT JOIN (
+  t3 FULL JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11  -  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+
+}
+do_execsql_test joinC-48 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 RIGHT JOIN (
+  t3 FULL JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+
+}
+do_execsql_test joinC-49 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 FULL JOIN (
+  t3 INNER JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 12 12  -  -  -
+  15 15 15 15 15 15
+
+}
+do_execsql_test joinC-50 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 FULL JOIN (
+  t3 INNER JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  12 12 12  -  -  -
+  15 15 15 15 15 15
+
+}
+do_execsql_test joinC-51 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 FULL JOIN (
+  t3 INNER JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 12 12  -  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+
+}
+do_execsql_test joinC-52 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 FULL JOIN (
+  t3 INNER JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  12 12 12  -  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+
+}
+do_execsql_test joinC-53 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 FULL JOIN (
+  t3 LEFT JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11  -  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  - 17  -  -
+
+}
+do_execsql_test joinC-54 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 FULL JOIN (
+  t3 LEFT JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  - 17  -  -
+
+}
+do_execsql_test joinC-55 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 FULL JOIN (
+  t3 LEFT JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11  -  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+
+}
+do_execsql_test joinC-56 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 FULL JOIN (
+  t3 LEFT JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+
+}
+do_execsql_test joinC-57 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 FULL JOIN (
+  t3 RIGHT JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 12 12  -  -  -
+  15 15 15 15 15 15
+
+}
+do_execsql_test joinC-58 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 FULL JOIN (
+  t3 RIGHT JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  12 12 12  -  -  -
+  15 15 15 15 15 15
+
+}
+do_execsql_test joinC-59 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 FULL JOIN (
+  t3 RIGHT JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 12 12  -  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+
+}
+do_execsql_test joinC-60 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 FULL JOIN (
+  t3 RIGHT JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  12 12 12  -  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+
+}
+do_execsql_test joinC-61 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 FULL JOIN (
+  t3 FULL JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11  -  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  - 17  -  -
+
+}
+do_execsql_test joinC-62 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 FULL JOIN (
+  t3 FULL JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  - 17  -  -
+
+}
+do_execsql_test joinC-63 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 FULL JOIN (
+  t3 FULL JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11  -  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+
+}
+do_execsql_test joinC-64 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 INNER JOIN (
+  t2 FULL JOIN (
+  t3 FULL JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+
+}
+do_execsql_test joinC-65 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 INNER JOIN (
+  t3 INNER JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12  -  -  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+
+}
+do_execsql_test joinC-66 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 INNER JOIN (
+  t3 INNER JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12  -  -  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+
+}
+do_execsql_test joinC-67 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 INNER JOIN (
+  t3 INNER JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12  -  -  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+
+}
+do_execsql_test joinC-68 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 INNER JOIN (
+  t3 INNER JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12  -  -  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+
+}
+do_execsql_test joinC-69 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 INNER JOIN (
+  t3 LEFT JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+
+}
+do_execsql_test joinC-70 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 INNER JOIN (
+  t3 LEFT JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+
+}
+do_execsql_test joinC-71 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 INNER JOIN (
+  t3 LEFT JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+
+}
+do_execsql_test joinC-72 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 INNER JOIN (
+  t3 LEFT JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+
+}
+do_execsql_test joinC-73 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 INNER JOIN (
+  t3 RIGHT JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12  -  -  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+
+}
+do_execsql_test joinC-74 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 INNER JOIN (
+  t3 RIGHT JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12  -  -  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+
+}
+do_execsql_test joinC-75 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 INNER JOIN (
+  t3 RIGHT JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12  -  -  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+
+}
+do_execsql_test joinC-76 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 INNER JOIN (
+  t3 RIGHT JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12  -  -  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+
+}
+do_execsql_test joinC-77 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 INNER JOIN (
+  t3 FULL JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+
+}
+do_execsql_test joinC-78 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 INNER JOIN (
+  t3 FULL JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+
+}
+do_execsql_test joinC-79 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 INNER JOIN (
+  t3 FULL JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+
+}
+do_execsql_test joinC-80 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 INNER JOIN (
+  t3 FULL JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+
+}
+do_execsql_test joinC-81 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 LEFT JOIN (
+  t3 INNER JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12 12  -  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+
+}
+do_execsql_test joinC-82 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 LEFT JOIN (
+  t3 INNER JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12 12  -  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+
+}
+do_execsql_test joinC-83 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 LEFT JOIN (
+  t3 INNER JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12 12  -  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+
+}
+do_execsql_test joinC-84 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 LEFT JOIN (
+  t3 INNER JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12 12  -  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+
+}
+do_execsql_test joinC-85 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 LEFT JOIN (
+  t3 LEFT JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+
+}
+do_execsql_test joinC-86 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 LEFT JOIN (
+  t3 LEFT JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+
+}
+do_execsql_test joinC-87 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 LEFT JOIN (
+  t3 LEFT JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+
+}
+do_execsql_test joinC-88 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 LEFT JOIN (
+  t3 LEFT JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+
+}
+do_execsql_test joinC-89 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 LEFT JOIN (
+  t3 RIGHT JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12 12  -  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+
+}
+do_execsql_test joinC-90 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 LEFT JOIN (
+  t3 RIGHT JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12 12  -  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+
+}
+do_execsql_test joinC-91 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 LEFT JOIN (
+  t3 RIGHT JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12 12  -  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+
+}
+do_execsql_test joinC-92 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 LEFT JOIN (
+  t3 RIGHT JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12 12  -  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+
+}
+do_execsql_test joinC-93 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 LEFT JOIN (
+  t3 FULL JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+
+}
+do_execsql_test joinC-94 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 LEFT JOIN (
+  t3 FULL JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+
+}
+do_execsql_test joinC-95 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 LEFT JOIN (
+  t3 FULL JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+
+}
+do_execsql_test joinC-96 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 LEFT JOIN (
+  t3 FULL JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+
+}
+do_execsql_test joinC-97 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 RIGHT JOIN (
+  t3 INNER JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12  -  -  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+
+}
+do_execsql_test joinC-98 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 RIGHT JOIN (
+  t3 INNER JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  12 12  -  -  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+
+}
+do_execsql_test joinC-99 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 RIGHT JOIN (
+  t3 INNER JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12  -  -  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+
+}
+do_execsql_test joinC-100 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 RIGHT JOIN (
+  t3 INNER JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  12 12  -  -  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+
+}
+do_execsql_test joinC-101 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 RIGHT JOIN (
+  t3 LEFT JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11  -  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  - 17  -  -
+
+}
+do_execsql_test joinC-102 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 RIGHT JOIN (
+  t3 LEFT JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  - 17  -  -
+
+}
+do_execsql_test joinC-103 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 RIGHT JOIN (
+  t3 LEFT JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11  -  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+
+}
+do_execsql_test joinC-104 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 RIGHT JOIN (
+  t3 LEFT JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+
+}
+do_execsql_test joinC-105 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 RIGHT JOIN (
+  t3 RIGHT JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12  -  -  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+
+}
+do_execsql_test joinC-106 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 RIGHT JOIN (
+  t3 RIGHT JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  12 12  -  -  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+
+}
+do_execsql_test joinC-107 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 RIGHT JOIN (
+  t3 RIGHT JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12  -  -  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+
+}
+do_execsql_test joinC-108 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 RIGHT JOIN (
+  t3 RIGHT JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  12 12  -  -  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+
+}
+do_execsql_test joinC-109 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 RIGHT JOIN (
+  t3 FULL JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11  -  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  - 17  -  -
+
+}
+do_execsql_test joinC-110 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 RIGHT JOIN (
+  t3 FULL JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  - 17  -  -
+
+}
+do_execsql_test joinC-111 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 RIGHT JOIN (
+  t3 FULL JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11  -  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+
+}
+do_execsql_test joinC-112 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 RIGHT JOIN (
+  t3 FULL JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+
+}
+do_execsql_test joinC-113 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 FULL JOIN (
+  t3 INNER JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12 12  -  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+
+}
+do_execsql_test joinC-114 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 FULL JOIN (
+  t3 INNER JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  12 12 12  -  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+
+}
+do_execsql_test joinC-115 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 FULL JOIN (
+  t3 INNER JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12 12  -  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+
+}
+do_execsql_test joinC-116 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 FULL JOIN (
+  t3 INNER JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  12 12 12  -  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+
+}
+do_execsql_test joinC-117 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 FULL JOIN (
+  t3 LEFT JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11  -  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  - 17  -  -
+
+}
+do_execsql_test joinC-118 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 FULL JOIN (
+  t3 LEFT JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  - 17  -  -
+
+}
+do_execsql_test joinC-119 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 FULL JOIN (
+  t3 LEFT JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11  -  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+
+}
+do_execsql_test joinC-120 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 FULL JOIN (
+  t3 LEFT JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+
+}
+do_execsql_test joinC-121 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 FULL JOIN (
+  t3 RIGHT JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12 12  -  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+
+}
+do_execsql_test joinC-122 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 FULL JOIN (
+  t3 RIGHT JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  12 12 12  -  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+
+}
+do_execsql_test joinC-123 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 FULL JOIN (
+  t3 RIGHT JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12 12  -  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+
+}
+do_execsql_test joinC-124 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 FULL JOIN (
+  t3 RIGHT JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  12 12 12  -  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+
+}
+do_execsql_test joinC-125 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 FULL JOIN (
+  t3 FULL JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11  -  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  - 17  -  -
+
+}
+do_execsql_test joinC-126 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 FULL JOIN (
+  t3 FULL JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  - 17  -  -
+
+}
+do_execsql_test joinC-127 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 FULL JOIN (
+  t3 FULL JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11  -  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+
+}
+do_execsql_test joinC-128 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 LEFT JOIN (
+  t2 FULL JOIN (
+  t3 FULL JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+
+}
+do_execsql_test joinC-129 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 INNER JOIN (
+  t3 INNER JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+
+}
+do_execsql_test joinC-130 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 INNER JOIN (
+  t3 INNER JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+
+}
+do_execsql_test joinC-131 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 INNER JOIN (
+  t3 INNER JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  18  - 18 18  - 18
+
+}
+do_execsql_test joinC-132 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 INNER JOIN (
+  t3 INNER JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  18  - 18 18  - 18
+
+}
+do_execsql_test joinC-133 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 INNER JOIN (
+  t3 LEFT JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 12 12 12  -  -
+  13  - 13 13  -  -
+  15 15 15 15 15 15
+  18  - 18 18  -  -
+
+}
+do_execsql_test joinC-134 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 INNER JOIN (
+  t3 LEFT JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  18  - 18 18  -  -
+
+}
+do_execsql_test joinC-135 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 INNER JOIN (
+  t3 LEFT JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 12 12 12  -  -
+  13  - 13 13  -  -
+  15 15 15 15 15 15
+  18  - 18 18  - 18
+
+}
+do_execsql_test joinC-136 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 INNER JOIN (
+  t3 LEFT JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  18  - 18 18  - 18
+
+}
+do_execsql_test joinC-137 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 INNER JOIN (
+  t3 RIGHT JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+
+}
+do_execsql_test joinC-138 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 INNER JOIN (
+  t3 RIGHT JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+
+}
+do_execsql_test joinC-139 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 INNER JOIN (
+  t3 RIGHT JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  18  - 18 18  - 18
+
+}
+do_execsql_test joinC-140 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 INNER JOIN (
+  t3 RIGHT JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  18  - 18 18  - 18
+
+}
+do_execsql_test joinC-141 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 INNER JOIN (
+  t3 FULL JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 12 12 12  -  -
+  13  - 13 13  -  -
+  15 15 15 15 15 15
+  18  - 18 18  -  -
+
+}
+do_execsql_test joinC-142 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 INNER JOIN (
+  t3 FULL JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  18  - 18 18  -  -
+
+}
+do_execsql_test joinC-143 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 INNER JOIN (
+  t3 FULL JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 12 12 12  -  -
+  13  - 13 13  -  -
+  15 15 15 15 15 15
+  18  - 18 18  - 18
+
+}
+do_execsql_test joinC-144 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 INNER JOIN (
+  t3 FULL JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  18  - 18 18  - 18
+
+}
+do_execsql_test joinC-145 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 LEFT JOIN (
+  t3 INNER JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  12 12 12  -  -  -
+  13  - 13  -  -  -
+  15 15 15 15 15 15
+  18  - 18  -  -  -
+
+}
+do_execsql_test joinC-146 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 LEFT JOIN (
+  t3 INNER JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  12 12 12  -  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  18  - 18  -  -  -
+
+}
+do_execsql_test joinC-147 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 LEFT JOIN (
+  t3 INNER JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  12 12 12  -  -  -
+  13  - 13  -  -  -
+  15 15 15 15 15 15
+  18  - 18 18  - 18
+
+}
+do_execsql_test joinC-148 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 LEFT JOIN (
+  t3 INNER JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  12 12 12  -  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  18  - 18 18  - 18
+
+}
+do_execsql_test joinC-149 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 LEFT JOIN (
+  t3 LEFT JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  12 12 12 12  -  -
+  13  - 13 13  -  -
+  15 15 15 15 15 15
+  18  - 18 18  -  -
+
+}
+do_execsql_test joinC-150 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 LEFT JOIN (
+  t3 LEFT JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  18  - 18 18  -  -
+
+}
+do_execsql_test joinC-151 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 LEFT JOIN (
+  t3 LEFT JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  12 12 12 12  -  -
+  13  - 13 13  -  -
+  15 15 15 15 15 15
+  18  - 18 18  - 18
+
+}
+do_execsql_test joinC-152 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 LEFT JOIN (
+  t3 LEFT JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  18  - 18 18  - 18
+
+}
+do_execsql_test joinC-153 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 LEFT JOIN (
+  t3 RIGHT JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  12 12 12  -  -  -
+  13  - 13  -  -  -
+  15 15 15 15 15 15
+  18  - 18  -  -  -
+
+}
+do_execsql_test joinC-154 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 LEFT JOIN (
+  t3 RIGHT JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  12 12 12  -  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  18  - 18  -  -  -
+
+}
+do_execsql_test joinC-155 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 LEFT JOIN (
+  t3 RIGHT JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  12 12 12  -  -  -
+  13  - 13  -  -  -
+  15 15 15 15 15 15
+  18  - 18 18  - 18
+
+}
+do_execsql_test joinC-156 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 LEFT JOIN (
+  t3 RIGHT JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  12 12 12  -  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  18  - 18 18  - 18
+
+}
+do_execsql_test joinC-157 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 LEFT JOIN (
+  t3 FULL JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  12 12 12 12  -  -
+  13  - 13 13  -  -
+  15 15 15 15 15 15
+  18  - 18 18  -  -
+
+}
+do_execsql_test joinC-158 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 LEFT JOIN (
+  t3 FULL JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  18  - 18 18  -  -
+
+}
+do_execsql_test joinC-159 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 LEFT JOIN (
+  t3 FULL JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  12 12 12 12  -  -
+  13  - 13 13  -  -
+  15 15 15 15 15 15
+  18  - 18 18  - 18
+
+}
+do_execsql_test joinC-160 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 LEFT JOIN (
+  t3 FULL JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  18  - 18 18  - 18
+
+}
+do_execsql_test joinC-161 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 RIGHT JOIN (
+  t3 INNER JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-162 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 RIGHT JOIN (
+  t3 INNER JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-163 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 RIGHT JOIN (
+  t3 INNER JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-164 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 RIGHT JOIN (
+  t3 INNER JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-165 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 RIGHT JOIN (
+  t3 LEFT JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  - 11  -  -
+  12 12 12 12  -  -
+  13  - 13 13  -  -
+  15 15 15 15 15 15
+  17 17  - 17  -  -
+  18  - 18 18  -  -
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-166 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 RIGHT JOIN (
+  t3 LEFT JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  -  -
+  18  - 18 18  -  -
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-167 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 RIGHT JOIN (
+  t3 LEFT JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  - 11  -  -
+  12 12 12 12  -  -
+  13  - 13 13  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-168 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 RIGHT JOIN (
+  t3 LEFT JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-169 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 RIGHT JOIN (
+  t3 RIGHT JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-170 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 RIGHT JOIN (
+  t3 RIGHT JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-171 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 RIGHT JOIN (
+  t3 RIGHT JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-172 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 RIGHT JOIN (
+  t3 RIGHT JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-173 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 RIGHT JOIN (
+  t3 FULL JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  - 11  -  -
+  12 12 12 12  -  -
+  13  - 13 13  -  -
+  15 15 15 15 15 15
+  17 17  - 17  -  -
+  18  - 18 18  -  -
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-174 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 RIGHT JOIN (
+  t3 FULL JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  -  -
+  18  - 18 18  -  -
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-175 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 RIGHT JOIN (
+  t3 FULL JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  - 11  -  -
+  12 12 12 12  -  -
+  13  - 13 13  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-176 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 RIGHT JOIN (
+  t3 FULL JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-177 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 FULL JOIN (
+  t3 INNER JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  12 12 12  -  -  -
+  13  - 13  -  -  -
+  15 15 15 15 15 15
+  18  - 18  -  -  -
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-178 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 FULL JOIN (
+  t3 INNER JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  - 11 11  -
+  12 12 12  -  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  18  - 18  -  -  -
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-179 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 FULL JOIN (
+  t3 INNER JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  12 12 12  -  -  -
+  13  - 13  -  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-180 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 FULL JOIN (
+  t3 INNER JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  - 11 11  -
+  12 12 12  -  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-181 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 FULL JOIN (
+  t3 LEFT JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+   -  -  -  -  -  -
+  11 11  - 11  -  -
+  12 12 12 12  -  -
+  13  - 13 13  -  -
+  15 15 15 15 15 15
+  17 17  - 17  -  -
+  18  - 18 18  -  -
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-182 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 FULL JOIN (
+  t3 LEFT JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+   -  -  -  -  -  -
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  -  -
+  18  - 18 18  -  -
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-183 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 FULL JOIN (
+  t3 LEFT JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+   -  -  -  -  -  -
+  11 11  - 11  -  -
+  12 12 12 12  -  -
+  13  - 13 13  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-184 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 FULL JOIN (
+  t3 LEFT JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+   -  -  -  -  -  -
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-185 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 FULL JOIN (
+  t3 RIGHT JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  12 12 12  -  -  -
+  13  - 13  -  -  -
+  15 15 15 15 15 15
+  18  - 18  -  -  -
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-186 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 FULL JOIN (
+  t3 RIGHT JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  - 11 11  -
+  12 12 12  -  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  18  - 18  -  -  -
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-187 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 FULL JOIN (
+  t3 RIGHT JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  12 12 12  -  -  -
+  13  - 13  -  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-188 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 FULL JOIN (
+  t3 RIGHT JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  - 11 11  -
+  12 12 12  -  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-189 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 FULL JOIN (
+  t3 FULL JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+   -  -  -  -  -  -
+  11 11  - 11  -  -
+  12 12 12 12  -  -
+  13  - 13 13  -  -
+  15 15 15 15 15 15
+  17 17  - 17  -  -
+  18  - 18 18  -  -
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-190 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 FULL JOIN (
+  t3 FULL JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+   -  -  -  -  -  -
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  -  -
+  18  - 18 18  -  -
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-191 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 FULL JOIN (
+  t3 FULL JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+   -  -  -  -  -  -
+  11 11  - 11  -  -
+  12 12 12 12  -  -
+  13  - 13 13  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-192 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 RIGHT JOIN (
+  t2 FULL JOIN (
+  t3 FULL JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+   -  -  -  -  -  -
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-193 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 INNER JOIN (
+  t3 INNER JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12  -  -  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+
+}
+do_execsql_test joinC-194 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 INNER JOIN (
+  t3 INNER JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12  -  -  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+
+}
+do_execsql_test joinC-195 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 INNER JOIN (
+  t3 INNER JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12  -  -  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+  18  - 18 18  - 18
+
+}
+do_execsql_test joinC-196 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 INNER JOIN (
+  t3 INNER JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12  -  -  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+  18  - 18 18  - 18
+
+}
+do_execsql_test joinC-197 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 INNER JOIN (
+  t3 LEFT JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12 12 12  -  -
+  13  - 13 13  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+  18  - 18 18  -  -
+
+}
+do_execsql_test joinC-198 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 INNER JOIN (
+  t3 LEFT JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+  18  - 18 18  -  -
+
+}
+do_execsql_test joinC-199 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 INNER JOIN (
+  t3 LEFT JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12 12 12  -  -
+  13  - 13 13  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+  18  - 18 18  - 18
+
+}
+do_execsql_test joinC-200 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 INNER JOIN (
+  t3 LEFT JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+  18  - 18 18  - 18
+
+}
+do_execsql_test joinC-201 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 INNER JOIN (
+  t3 RIGHT JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12  -  -  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+
+}
+do_execsql_test joinC-202 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 INNER JOIN (
+  t3 RIGHT JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12  -  -  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+
+}
+do_execsql_test joinC-203 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 INNER JOIN (
+  t3 RIGHT JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12  -  -  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+  18  - 18 18  - 18
+
+}
+do_execsql_test joinC-204 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 INNER JOIN (
+  t3 RIGHT JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12  -  -  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+  18  - 18 18  - 18
+
+}
+do_execsql_test joinC-205 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 INNER JOIN (
+  t3 FULL JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12 12 12  -  -
+  13  - 13 13  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+  18  - 18 18  -  -
+
+}
+do_execsql_test joinC-206 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 INNER JOIN (
+  t3 FULL JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+  18  - 18 18  -  -
+
+}
+do_execsql_test joinC-207 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 INNER JOIN (
+  t3 FULL JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12 12 12  -  -
+  13  - 13 13  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+  18  - 18 18  - 18
+
+}
+do_execsql_test joinC-208 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 INNER JOIN (
+  t3 FULL JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+  18  - 18 18  - 18
+
+}
+do_execsql_test joinC-209 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 LEFT JOIN (
+  t3 INNER JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  -  -  -  -
+  12 12 12  -  -  -
+  13  - 13  -  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+  18  - 18  -  -  -
+
+}
+do_execsql_test joinC-210 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 LEFT JOIN (
+  t3 INNER JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  -  -  -  -
+  12 12 12  -  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+  18  - 18  -  -  -
+
+}
+do_execsql_test joinC-211 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 LEFT JOIN (
+  t3 INNER JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  -  -  -  -
+  12 12 12  -  -  -
+  13  - 13  -  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+  18  - 18 18  - 18
+
+}
+do_execsql_test joinC-212 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 LEFT JOIN (
+  t3 INNER JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  -  -  -  -
+  12 12 12  -  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+  18  - 18 18  - 18
+
+}
+do_execsql_test joinC-213 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 LEFT JOIN (
+  t3 LEFT JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  -  -  -  -
+  12 12 12 12  -  -
+  13  - 13 13  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+  18  - 18 18  -  -
+
+}
+do_execsql_test joinC-214 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 LEFT JOIN (
+  t3 LEFT JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  -  -  -  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+  18  - 18 18  -  -
+
+}
+do_execsql_test joinC-215 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 LEFT JOIN (
+  t3 LEFT JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  -  -  -  -
+  12 12 12 12  -  -
+  13  - 13 13  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+  18  - 18 18  - 18
+
+}
+do_execsql_test joinC-216 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 LEFT JOIN (
+  t3 LEFT JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  -  -  -  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+  18  - 18 18  - 18
+
+}
+do_execsql_test joinC-217 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 LEFT JOIN (
+  t3 RIGHT JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  -  -  -  -
+  12 12 12  -  -  -
+  13  - 13  -  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+  18  - 18  -  -  -
+
+}
+do_execsql_test joinC-218 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 LEFT JOIN (
+  t3 RIGHT JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  -  -  -  -
+  12 12 12  -  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+  18  - 18  -  -  -
+
+}
+do_execsql_test joinC-219 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 LEFT JOIN (
+  t3 RIGHT JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  -  -  -  -
+  12 12 12  -  -  -
+  13  - 13  -  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+  18  - 18 18  - 18
+
+}
+do_execsql_test joinC-220 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 LEFT JOIN (
+  t3 RIGHT JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  -  -  -  -
+  12 12 12  -  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+  18  - 18 18  - 18
+
+}
+do_execsql_test joinC-221 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 LEFT JOIN (
+  t3 FULL JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  -  -  -  -
+  12 12 12 12  -  -
+  13  - 13 13  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+  18  - 18 18  -  -
+
+}
+do_execsql_test joinC-222 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 LEFT JOIN (
+  t3 FULL JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  -  -  -  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+  18  - 18 18  -  -
+
+}
+do_execsql_test joinC-223 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 LEFT JOIN (
+  t3 FULL JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  -  -  -  -
+  12 12 12 12  -  -
+  13  - 13 13  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+  18  - 18 18  - 18
+
+}
+do_execsql_test joinC-224 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 LEFT JOIN (
+  t3 FULL JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  -  -  -  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+  18  - 18 18  - 18
+
+}
+do_execsql_test joinC-225 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 RIGHT JOIN (
+  t3 INNER JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12  -  -  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-226 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 RIGHT JOIN (
+  t3 INNER JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  12 12  -  -  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-227 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 RIGHT JOIN (
+  t3 INNER JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12  -  -  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-228 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 RIGHT JOIN (
+  t3 INNER JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  12 12  -  -  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-229 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 RIGHT JOIN (
+  t3 LEFT JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  - 11  -  -
+  12 12 12 12  -  -
+  13  - 13 13  -  -
+  15 15 15 15 15 15
+  17 17  - 17  -  -
+  18  - 18 18  -  -
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-230 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 RIGHT JOIN (
+  t3 LEFT JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  -  -
+  18  - 18 18  -  -
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-231 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 RIGHT JOIN (
+  t3 LEFT JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  - 11  -  -
+  12 12 12 12  -  -
+  13  - 13 13  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-232 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 RIGHT JOIN (
+  t3 LEFT JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-233 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 RIGHT JOIN (
+  t3 RIGHT JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12  -  -  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-234 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 RIGHT JOIN (
+  t3 RIGHT JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  12 12  -  -  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-235 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 RIGHT JOIN (
+  t3 RIGHT JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  -  -  -  -
+  12 12  -  -  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-236 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 RIGHT JOIN (
+  t3 RIGHT JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+  11 11  - 11 11  -
+  12 12  -  -  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-237 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 RIGHT JOIN (
+  t3 FULL JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  - 11  -  -
+  12 12 12 12  -  -
+  13  - 13 13  -  -
+  15 15 15 15 15 15
+  17 17  - 17  -  -
+  18  - 18 18  -  -
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-238 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 RIGHT JOIN (
+  t3 FULL JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  -  -
+  18  - 18 18  -  -
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-239 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 RIGHT JOIN (
+  t3 FULL JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  - 11  -  -
+  12 12 12 12  -  -
+  13  - 13 13  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-240 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 RIGHT JOIN (
+  t3 FULL JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-241 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 FULL JOIN (
+  t3 INNER JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  -  -  -  -
+  12 12 12  -  -  -
+  13  - 13  -  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+  18  - 18  -  -  -
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-242 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 FULL JOIN (
+  t3 INNER JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  - 11 11  -
+  12 12 12  -  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+  18  - 18  -  -  -
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-243 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 FULL JOIN (
+  t3 INNER JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  -  -  -  -
+  12 12 12  -  -  -
+  13  - 13  -  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-244 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 FULL JOIN (
+  t3 INNER JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  - 11 11  -
+  12 12 12  -  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-245 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 FULL JOIN (
+  t3 LEFT JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+   -  -  -  -  -  -
+  11 11  - 11  -  -
+  12 12 12 12  -  -
+  13  - 13 13  -  -
+  15 15 15 15 15 15
+  17 17  - 17  -  -
+  18  - 18 18  -  -
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-246 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 FULL JOIN (
+  t3 LEFT JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+   -  -  -  -  -  -
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  -  -
+  18  - 18 18  -  -
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-247 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 FULL JOIN (
+  t3 LEFT JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+   -  -  -  -  -  -
+  11 11  - 11  -  -
+  12 12 12 12  -  -
+  13  - 13 13  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-248 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 FULL JOIN (
+  t3 LEFT JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+   -  -  -  -  -  -
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-249 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 FULL JOIN (
+  t3 RIGHT JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  -  -  -  -
+  12 12 12  -  -  -
+  13  - 13  -  -  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+  18  - 18  -  -  -
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-250 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 FULL JOIN (
+  t3 RIGHT JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  - 11 11  -
+  12 12 12  -  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  -  -  -  -
+  18  - 18  -  -  -
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-251 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 FULL JOIN (
+  t3 RIGHT JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  -  -  -  -
+  12 12 12  -  -  -
+  13  - 13  -  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-252 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 FULL JOIN (
+  t3 RIGHT JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+  11 11  - 11 11  -
+  12 12 12  -  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-253 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 FULL JOIN (
+  t3 FULL JOIN (
+  t4 INNER JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+   -  -  -  -  -  -
+  11 11  - 11  -  -
+  12 12 12 12  -  -
+  13  - 13 13  -  -
+  15 15 15 15 15 15
+  17 17  - 17  -  -
+  18  - 18 18  -  -
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-254 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 FULL JOIN (
+  t3 FULL JOIN (
+  t4 LEFT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+   -  -  -  -  -  -
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  -  -
+  18  - 18 18  -  -
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-255 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 FULL JOIN (
+  t3 FULL JOIN (
+  t4 RIGHT JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+   -  -  -  -  -  -
+  11 11  - 11  -  -
+  12 12 12 12  -  -
+  13  - 13 13  -  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+
+}
+do_execsql_test joinC-256 {
+  SELECT a, t1.a, t2.a, t3.a, t4.a, t5.a
+  FROM t1 FULL JOIN (
+  t2 FULL JOIN (
+  t3 FULL JOIN (
+  t4 FULL JOIN t5 USING(a)
+  ) USING(a)
+  ) USING(a)
+  ) USING(a)
+  ORDER BY 1 NULLS FIRST;
+} {
+   -  -  -  -  -  -
+   -  -  -  -  -  -
+  11 11  - 11 11  -
+  12 12 12 12  -  -
+  13  - 13 13 13  -
+  15 15 15 15 15 15
+  17 17  - 17  - 17
+  18  - 18 18  - 18
+  19  -  - 19 19 19
+
+}
+finish_test
diff --git a/test/joinD.test b/test/joinD.test
new file mode 100644
index 0000000000000000000000000000000000000000..e4e4553b6c14aec0b5e9984f873da26cd227fe96
--- /dev/null
+++ b/test/joinD.test
@@ -0,0 +1,35136 @@
+# 2022-05-04
+# revised 2022-05-31
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# TESTRUNNER: slow
+#
+# This file implements tests for JOINs that use Bloom filters.
+#
+# The test case output is (mostly) all generated by PostgreSQL 14.  This
+# test module was created as follows:
+#
+#   1.   Run a TCL script (included at the bottom of this file) that
+#        generates an input script for "psql" that will run man
+#        diverse tests on joins.
+#
+#   2.   Run the script from step (1) through psql and collect the
+#        output.
+#
+#   3.   Make a few minor global search-and-replace operations to convert
+#        the psql output into a form suitable for this test module.
+#
+#   4.   Add this header, and the script content at the footer.
+#
+# A few extra tests that were not generated from postgresql output are
+# added at the end.
+#
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+db nullvalue -
+db eval {
+  CREATE TABLE t1(a INT, b INT, c INT, d INT);
+  WITH RECURSIVE c(x) AS (VALUES(0) UNION ALL SELECT x+1 FROM c WHERE x<95)
+    INSERT INTO t1(a,b,c,d) SELECT x, x+100, x+200, x+300 FROM c;
+  CREATE TABLE t2(b INT, x INT);
+  INSERT INTO t2(b,x) SELECT b, a FROM t1 WHERE a%2=0;
+  CREATE INDEX t2b ON t2(b);
+  CREATE TABLE t3(c INT, y INT);
+  INSERT INTO t3(c,y) SELECT c, a FROM t1 WHERE a%3=0;
+  CREATE INDEX t3c ON t3(c);
+  CREATE TABLE t4(d INT, z INT);
+  INSERT INTO t4(d,z) SELECT d, a FROM t1 WHERE a%5=0;
+  CREATE INDEX t4d ON t4(d);
+  INSERT INTO t1(a,b,c,d) VALUES
+    (96,NULL,296,396),
+    (97,197,NULL,397),
+    (98,198,298,NULL),
+    (99,NULL,NULL,NULL);
+  ANALYZE;
+}
+do_execsql_test joinD-1 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-2 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-3 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-4 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-5 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON true
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-6 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-7 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-8 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-9 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-10 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-11 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-12 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-13 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-14 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-15 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-16 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-17 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  INNER JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-18 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-19 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-20 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-21 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-22 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-23 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-24 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON true
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-25 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-26 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-27 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-28 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-29 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-30 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-31 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-32 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-33 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-34 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-35 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-36 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  LEFT JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-37 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-38 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-39 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-40 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-41 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-42 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-43 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON true
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-44 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-45 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-46 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-47 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-48 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-49 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-50 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-51 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-52 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-53 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-54 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-55 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-56 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-57 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-58 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-59 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-60 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-61 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-62 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON true
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-63 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-64 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-65 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-66 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-67 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-68 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-69 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-70 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-71 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-72 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-73 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-74 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  FULL JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d = t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-75 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-76 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-77 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-78 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-79 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-80 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-81 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON true
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-82 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-83 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-84 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-85 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-86 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-87 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-88 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-89 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-90 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-91 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-92 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-93 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  INNER JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-94 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-95 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-96 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-97 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-98 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-99 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-100 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON true
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-101 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-102 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-103 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-104 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-105 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-106 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-107 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-108 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-109 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-110 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-111 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-112 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  LEFT JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-113 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-114 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-115 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-116 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-117 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-118 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-119 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON true
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-120 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-121 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-122 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-123 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-124 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-125 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-126 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-127 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-128 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-129 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-130 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-131 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-132 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-133 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-134 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-135 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-136 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-137 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-138 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON true
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-139 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-140 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-141 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-142 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-143 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-144 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-145 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-146 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-147 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-148 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-149 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-150 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  FULL JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d = t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-151 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-152 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-153 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-154 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-155 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-156 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-157 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON true
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-158 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-159 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-160 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-161 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-162 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-163 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-164 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-165 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-166 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-167 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-168 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-169 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  INNER JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-170 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-171 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-172 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+}
+do_execsql_test joinD-173 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+}
+do_execsql_test joinD-174 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-175 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+}
+do_execsql_test joinD-176 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON true
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-177 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+}
+do_execsql_test joinD-178 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+}
+do_execsql_test joinD-179 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-180 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+}
+do_execsql_test joinD-181 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-182 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-183 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-184 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-185 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+}
+do_execsql_test joinD-186 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 200  0   -  -
+}
+do_execsql_test joinD-187 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-188 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  LEFT JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-189 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+}
+do_execsql_test joinD-190 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+}
+do_execsql_test joinD-191 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-192 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-193 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-194 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-195 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON true
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-196 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-197 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-198 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-199 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-200 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-201 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-202 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-203 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-204 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-205 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-206 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-207 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-208 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-209 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-210 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-211 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-212 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-213 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-214 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON true
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-215 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+}
+do_execsql_test joinD-216 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-217 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-218 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-219 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-220 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-221 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-222 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-223 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-224 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-225 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-226 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  FULL JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d = t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-227 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-228 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-229 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-230 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-231 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-232 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-233 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON true
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-234 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-235 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-236 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-237 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-238 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-239 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-240 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-241 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-242 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-243 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-244 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c = t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-245 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  INNER JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-246 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-247 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+}
+do_execsql_test joinD-248 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+}
+do_execsql_test joinD-249 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-250 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+}
+do_execsql_test joinD-251 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON true
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-252 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+}
+do_execsql_test joinD-253 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+}
+do_execsql_test joinD-254 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-255 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+}
+do_execsql_test joinD-256 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-257 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-258 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-259 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-260 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+}
+do_execsql_test joinD-261 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+}
+do_execsql_test joinD-262 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c = t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-263 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  LEFT JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-264 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+}
+do_execsql_test joinD-265 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-266 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-267 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-268 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-269 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON true
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-270 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-271 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-272 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-273 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-274 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-275 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-276 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-277 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-278 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-279 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-280 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c = t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-281 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-282 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-283 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-284 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-285 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-286 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-287 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON true
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-288 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+}
+do_execsql_test joinD-289 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-290 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-291 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-292 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-293 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-294 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-295 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-296 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-297 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-298 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c = t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-299 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  FULL JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d = t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-300 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 INNER JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-301 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-302 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-303 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-304 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-305 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON true
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-306 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-307 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-308 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-309 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-310 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-311 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-312 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-313 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-314 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-315 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-316 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-317 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  INNER JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-318 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-319 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-320 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+}
+do_execsql_test joinD-321 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+}
+do_execsql_test joinD-322 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-323 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+}
+do_execsql_test joinD-324 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON true
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-325 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+}
+do_execsql_test joinD-326 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+}
+do_execsql_test joinD-327 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-328 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+}
+do_execsql_test joinD-329 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-330 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-331 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-332 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-333 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+}
+do_execsql_test joinD-334 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-335 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-336 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  LEFT JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-337 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+}
+do_execsql_test joinD-338 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+}
+do_execsql_test joinD-339 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-340 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-341 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-342 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-343 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON true
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-344 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-345 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-346 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-347 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-348 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-349 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-350 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-351 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-352 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-353 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-354 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-355 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-356 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-357 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-358 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-359 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-360 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-361 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-362 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON true
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-363 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+}
+do_execsql_test joinD-364 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-365 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-366 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-367 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-368 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-369 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-370 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-371 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-372 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-373 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-374 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  FULL JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d = t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-375 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-376 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-377 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-378 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-379 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-380 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-381 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON true
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-382 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-383 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-384 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-385 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-386 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-387 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-388 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-389 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-390 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-391 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-392 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-393 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  INNER JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-394 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-395 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-396 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   0 100 200 300   -  -   -  -   -  -
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+}
+do_execsql_test joinD-397 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   0 100 200 300   -  -   -  -   -  -
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+}
+do_execsql_test joinD-398 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-399 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+}
+do_execsql_test joinD-400 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON true
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-401 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+}
+do_execsql_test joinD-402 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+}
+do_execsql_test joinD-403 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-404 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+}
+do_execsql_test joinD-405 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-406 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-407 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-408 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-409 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   0 100 200 300   -  -   -  -   -  -
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+}
+do_execsql_test joinD-410 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-411 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-412 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  LEFT JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-413 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   0 100 200 300   -  -   -  -   -  -
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+}
+do_execsql_test joinD-414 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   0 100 200 300   -  -   -  -   -  -
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+}
+do_execsql_test joinD-415 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-416 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-417 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-418 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-419 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON true
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-420 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-421 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-422 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-423 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-424 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-425 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-426 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-427 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-428 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-429 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-430 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-431 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-432 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-433 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-434 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   0 100 200 300   -  -   -  -   -  -
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-435 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   0 100 200 300   -  -   -  -   -  -
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-436 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-437 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-438 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON true
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-439 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+}
+do_execsql_test joinD-440 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-441 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-442 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+}
+do_execsql_test joinD-443 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-444 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-445 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-446 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-447 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   0 100 200 300   -  -   -  -   -  -
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-448 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-449 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-450 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  FULL JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d = t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-451 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   0 100 200 300   -  -   -  -   -  -
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-452 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   0 100 200 300   -  -   -  -   -  -
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-453 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-454 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-455 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-456 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-457 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON true
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-458 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-459 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-460 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-461 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-462 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-463 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-464 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-465 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-466 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-467 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-468 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-469 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  INNER JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-470 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-471 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-472 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+   -   -   -   -   -  - 200  0   -  -
+}
+do_execsql_test joinD-473 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+   -   -   -   -   -  - 200  0   -  -
+}
+do_execsql_test joinD-474 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-475 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+   -   -   -   -   -  - 200  0   -  -
+}
+do_execsql_test joinD-476 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON true
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-477 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+}
+do_execsql_test joinD-478 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+}
+do_execsql_test joinD-479 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-480 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+   -   -   -   -   -  - 200  0   -  -
+}
+do_execsql_test joinD-481 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-482 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-483 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-484 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-485 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+   -   -   -   -   -  - 200  0   -  -
+}
+do_execsql_test joinD-486 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 200  0   -  -
+}
+do_execsql_test joinD-487 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-488 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  LEFT JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-489 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+   -   -   -   -   -  - 200  0   -  -
+}
+do_execsql_test joinD-490 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+   -   -   -   -   -  - 200  0   -  -
+}
+do_execsql_test joinD-491 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-492 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-493 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-494 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-495 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON true
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-496 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-497 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-498 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-499 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-500 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-501 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-502 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-503 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-504 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-505 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-506 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-507 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-508 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-509 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-510 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-511 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-512 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-513 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-514 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON true
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-515 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+}
+do_execsql_test joinD-516 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-517 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-518 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-519 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-520 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-521 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-522 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-523 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-524 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-525 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-526 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  FULL JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d = t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-527 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-528 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-529 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-530 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-531 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-532 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-533 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON true
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-534 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-535 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-536 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-537 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-538 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-539 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-540 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-541 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-542 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-543 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-544 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c = t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-545 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  INNER JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-546 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-547 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   0 100 200 300   -  -   -  -   -  -
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+}
+do_execsql_test joinD-548 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   0 100 200 300   -  -   -  -   -  -
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+}
+do_execsql_test joinD-549 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-550 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+}
+do_execsql_test joinD-551 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON true
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-552 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+}
+do_execsql_test joinD-553 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+}
+do_execsql_test joinD-554 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-555 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+}
+do_execsql_test joinD-556 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-557 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-558 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-559 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-560 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   0 100 200 300   -  -   -  -   -  -
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+}
+do_execsql_test joinD-561 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+}
+do_execsql_test joinD-562 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c = t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-563 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  LEFT JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-564 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   0 100 200 300   -  -   -  -   -  -
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+}
+do_execsql_test joinD-565 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-566 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-567 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-568 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-569 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON true
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-570 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-571 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-572 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-573 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-574 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-575 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-576 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-577 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-578 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-579 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-580 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c = t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-581 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-582 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-583 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   0 100 200 300   -  -   -  -   -  -
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-584 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   0 100 200 300   -  -   -  -   -  -
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-585 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-586 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-587 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON true
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-588 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+}
+do_execsql_test joinD-589 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-590 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-591 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+}
+do_execsql_test joinD-592 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-593 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-594 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-595 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-596 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   0 100 200 300   -  -   -  -   -  -
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-597 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-598 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c = t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-599 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  FULL JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d = t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-600 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 LEFT JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   0 100 200 300   -  -   -  -   -  -
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-601 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-602 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-603 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-604 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-605 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON true
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-606 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-607 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-608 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-609 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-610 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-611 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-612 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-613 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-614 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-615 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-616 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-617 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  INNER JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-618 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-619 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-620 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-621 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-622 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-623 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-624 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON true
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-625 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-626 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-627 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-628 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-629 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-630 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-631 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-632 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-633 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-634 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-635 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-636 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  LEFT JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-637 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-638 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-639 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-640 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-641 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-642 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-643 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON true
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-644 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-645 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-646 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-647 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-648 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-649 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-650 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-651 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-652 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-653 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-654 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-655 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-656 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-657 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-658 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-659 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-660 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-661 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-662 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON true
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-663 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-664 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-665 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-666 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-667 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-668 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-669 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-670 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-671 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-672 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-673 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-674 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  FULL JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d = t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-675 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-676 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-677 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-678 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-679 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-680 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-681 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON true
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-682 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-683 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-684 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-685 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-686 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-687 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-688 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-689 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-690 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-691 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-692 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-693 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  INNER JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-694 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-695 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-696 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   - 100  0   -  -   -  -
+}
+do_execsql_test joinD-697 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   - 100  0   -  -   -  -
+}
+do_execsql_test joinD-698 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-699 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-700 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON true
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-701 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-702 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   - 100  0   -  -   -  -
+}
+do_execsql_test joinD-703 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-704 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   - 100  0   -  -   -  -
+}
+do_execsql_test joinD-705 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-706 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-707 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-708 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-709 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   - 100  0   -  -   -  -
+}
+do_execsql_test joinD-710 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-711 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-712 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  LEFT JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-713 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   - 100  0   -  -   -  -
+}
+do_execsql_test joinD-714 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   - 100  0   -  -   -  -
+}
+do_execsql_test joinD-715 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-716 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-717 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-718 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-719 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON true
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-720 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-721 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-722 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-723 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-724 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-725 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-726 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-727 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-728 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-729 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-730 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-731 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-732 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-733 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-734 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   - 100  0   -  -   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-735 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   - 100  0   -  -   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-736 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-737 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-738 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON true
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-739 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-740 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   - 100  0   -  -   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-741 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-742 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   - 100  0   -  -   -  -
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-743 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-744 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-745 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-746 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-747 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   - 100  0   -  -   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-748 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-749 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-750 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  FULL JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d = t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-751 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   - 100  0   -  -   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-752 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   - 100  0   -  -   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-753 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-754 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-755 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-756 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-757 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON true
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-758 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-759 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-760 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-761 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-762 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-763 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-764 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-765 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-766 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-767 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-768 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-769 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  INNER JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-770 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-771 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-772 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+}
+do_execsql_test joinD-773 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+}
+do_execsql_test joinD-774 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-775 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+}
+do_execsql_test joinD-776 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON true
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-777 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+}
+do_execsql_test joinD-778 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+}
+do_execsql_test joinD-779 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-780 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+}
+do_execsql_test joinD-781 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-782 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-783 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-784 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-785 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+}
+do_execsql_test joinD-786 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 200  0   -  -
+}
+do_execsql_test joinD-787 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-788 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  LEFT JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-789 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+}
+do_execsql_test joinD-790 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+}
+do_execsql_test joinD-791 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-792 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-793 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-794 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-795 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON true
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-796 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-797 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-798 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-799 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-800 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-801 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-802 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-803 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-804 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-805 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-806 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-807 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-808 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-809 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-810 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-811 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-812 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-813 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-814 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON true
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-815 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+}
+do_execsql_test joinD-816 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-817 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-818 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-819 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-820 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-821 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-822 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-823 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-824 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-825 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-826 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  FULL JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d = t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-827 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-828 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-829 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-830 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-831 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-832 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-833 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON true
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-834 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-835 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-836 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-837 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-838 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-839 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-840 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-841 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-842 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-843 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-844 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c = t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-845 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  INNER JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-846 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-847 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   - 100  0   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+}
+do_execsql_test joinD-848 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   - 100  0   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+}
+do_execsql_test joinD-849 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-850 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+}
+do_execsql_test joinD-851 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON true
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-852 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+}
+do_execsql_test joinD-853 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   - 100  0   -  -   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+}
+do_execsql_test joinD-854 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-855 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   - 100  0   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+}
+do_execsql_test joinD-856 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-857 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-858 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-859 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-860 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   - 100  0   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+}
+do_execsql_test joinD-861 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+}
+do_execsql_test joinD-862 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c = t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-863 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  LEFT JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-864 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   - 100  0   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+}
+do_execsql_test joinD-865 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-866 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-867 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-868 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-869 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON true
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-870 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-871 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-872 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-873 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-874 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-875 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-876 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-877 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-878 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-879 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-880 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c = t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-881 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-882 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-883 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   - 100  0   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-884 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   - 100  0   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-885 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-886 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-887 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON true
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-888 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+}
+do_execsql_test joinD-889 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   - 100  0   -  -   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-890 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-891 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   - 100  0   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-892 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-893 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-894 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-895 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-896 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   - 100  0   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-897 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-898 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.c = t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-899 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  FULL JOIN t4 ON t4.z>0
+  WHERE t1.b IS NOT DISTINCT FROM t2.b AND t1.d = t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-900 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 RIGHT JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+   -   -   -   - 100  0   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  - 203  3   -  -
+   -   -   -   -   -  - 209  9   -  -
+   -   -   -   -   -  - 215 15   -  -
+   -   -   -   -   -  - 221 21   -  -
+   -   -   -   -   -  - 227 27   -  -
+   -   -   -   -   -  - 233 33   -  -
+   -   -   -   -   -  - 239 39   -  -
+   -   -   -   -   -  - 245 45   -  -
+   -   -   -   -   -  - 251 51   -  -
+   -   -   -   -   -  - 257 57   -  -
+   -   -   -   -   -  - 263 63   -  -
+   -   -   -   -   -  - 269 69   -  -
+   -   -   -   -   -  - 275 75   -  -
+   -   -   -   -   -  - 281 81   -  -
+   -   -   -   -   -  - 287 87   -  -
+   -   -   -   -   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 315 15
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 345 45
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 375 75
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-901 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-902 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-903 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-904 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON true
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-905 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-906 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-907 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-908 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-909 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-910 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-911 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-912 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-913 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b = t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-914 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b = t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-915 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b = t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-916 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  INNER JOIN t4 ON t4.z>0
+  WHERE t1.b = t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-917 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-918 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+}
+do_execsql_test joinD-919 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-920 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+}
+do_execsql_test joinD-921 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON true
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-922 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+}
+do_execsql_test joinD-923 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+}
+do_execsql_test joinD-924 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-925 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+}
+do_execsql_test joinD-926 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-927 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-928 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-929 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-930 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b = t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+}
+do_execsql_test joinD-931 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b = t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-932 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b = t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-933 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  LEFT JOIN t4 ON t4.z>0
+  WHERE t1.b = t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-934 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+}
+do_execsql_test joinD-935 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-936 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-937 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-938 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON true
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-939 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-940 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-941 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-942 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-943 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-944 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-945 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-946 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-947 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b = t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-948 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b = t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-949 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b = t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-950 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t4.z>0
+  WHERE t1.b = t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-951 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-952 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-953 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-954 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-955 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON true
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-956 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+}
+do_execsql_test joinD-957 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-958 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-959 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-960 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-961 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-962 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-963 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  INNER JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-964 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b = t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-965 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  WHERE t1.b = t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-966 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  WHERE t1.b = t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-967 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  INNER JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  FULL JOIN t4 ON t4.z>0
+  WHERE t1.b = t2.b AND t1.d = t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-968 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  INNER JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-969 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-970 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-971 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-972 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON true
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-973 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-974 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-975 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-976 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-977 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-978 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-979 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-980 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-981 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b = t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-982 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b = t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-983 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b = t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-984 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  INNER JOIN t4 ON t4.z>0
+  WHERE t1.b = t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-985 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-986 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   0 100 200 300   -  -   -  -   -  -
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+   -   -   -   - 100  0   -  -   -  -
+}
+do_execsql_test joinD-987 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-988 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+}
+do_execsql_test joinD-989 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON true
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-990 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+}
+do_execsql_test joinD-991 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+   -   -   -   - 100  0   -  -   -  -
+}
+do_execsql_test joinD-992 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-993 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+   -   -   -   - 100  0   -  -   -  -
+}
+do_execsql_test joinD-994 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-995 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-996 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-997 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-998 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b = t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   0 100 200 300   -  -   -  -   -  -
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+   -   -   -   - 100  0   -  -   -  -
+}
+do_execsql_test joinD-999 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b = t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-1000 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b = t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1001 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  LEFT JOIN t4 ON t4.z>0
+  WHERE t1.b = t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1002 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   0 100 200 300   -  -   -  -   -  -
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+   -   -   -   - 100  0   -  -   -  -
+}
+do_execsql_test joinD-1003 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-1004 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1005 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-1006 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON true
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1007 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1008 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-1009 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-1010 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-1011 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1012 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1013 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1014 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1015 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b = t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-1016 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b = t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1017 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b = t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1018 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t4.z>0
+  WHERE t1.b = t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1019 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-1020 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   0 100 200 300   -  -   -  -   -  -
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+   -   -   -   - 100  0   -  -   -  -
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-1021 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-1022 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-1023 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON true
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-1024 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+}
+do_execsql_test joinD-1025 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+   -   -   -   - 100  0   -  -   -  -
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-1026 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-1027 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+   -   -   -   - 100  0   -  -   -  -
+}
+do_execsql_test joinD-1028 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1029 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1030 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1031 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  LEFT JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1032 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b = t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   0 100 200 300   -  -   -  -   -  -
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+   -   -   -   - 100  0   -  -   -  -
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-1033 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  WHERE t1.b = t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-1034 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  WHERE t1.b = t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1035 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  LEFT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  FULL JOIN t4 ON t4.z>0
+  WHERE t1.b = t2.b AND t1.d = t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1036 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  LEFT JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   0 100 200 300   -  -   -  -   -  -
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+   -   -   -   - 100  0   -  -   -  -
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-1037 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1038 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1039 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1040 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON true
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1041 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1042 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1043 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1044 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1045 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1046 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1047 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1048 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1049 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b = t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1050 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b = t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1051 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b = t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1052 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  INNER JOIN t4 ON t4.z>0
+  WHERE t1.b = t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1053 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1054 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+   -   -   -   -   -  - 200  0   -  -
+}
+do_execsql_test joinD-1055 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1056 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+   -   -   -   -   -  - 200  0   -  -
+}
+do_execsql_test joinD-1057 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON true
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1058 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+}
+do_execsql_test joinD-1059 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+}
+do_execsql_test joinD-1060 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1061 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+   -   -   -   -   -  - 200  0   -  -
+}
+do_execsql_test joinD-1062 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1063 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1064 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1065 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1066 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b = t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+   -   -   -   -   -  - 200  0   -  -
+}
+do_execsql_test joinD-1067 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b = t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1068 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b = t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1069 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  LEFT JOIN t4 ON t4.z>0
+  WHERE t1.b = t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1070 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+   -   -   -   -   -  - 200  0   -  -
+}
+do_execsql_test joinD-1071 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-1072 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1073 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-1074 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON true
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1075 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1076 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-1077 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-1078 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-1079 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1080 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1081 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1082 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1083 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b = t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-1084 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b = t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1085 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b = t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1086 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t4.z>0
+  WHERE t1.b = t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1087 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-1088 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-1089 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1090 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-1091 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON true
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1092 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+}
+do_execsql_test joinD-1093 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-1094 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-1095 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-1096 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1097 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1098 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1099 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  RIGHT JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1100 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b = t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-1101 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  WHERE t1.b = t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1102 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  WHERE t1.b = t2.b AND t1.c IS NOT DISTINCT FROM t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1103 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  RIGHT JOIN t3 ON t1.c IS NOT DISTINCT FROM t3.c AND t3.y>0
+  FULL JOIN t4 ON t4.z>0
+  WHERE t1.b = t2.b AND t1.d = t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1104 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  RIGHT JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  -   -  - 300  0
+   -   -   -   -   -  -   -  - 305  5
+   -   -   -   -   -  -   -  - 310 10
+   -   -   -   -   -  -   -  - 320 20
+   -   -   -   -   -  -   -  - 325 25
+   -   -   -   -   -  -   -  - 335 35
+   -   -   -   -   -  -   -  - 340 40
+   -   -   -   -   -  -   -  - 350 50
+   -   -   -   -   -  -   -  - 355 55
+   -   -   -   -   -  -   -  - 365 65
+   -   -   -   -   -  -   -  - 370 70
+   -   -   -   -   -  -   -  - 380 80
+   -   -   -   -   -  -   -  - 385 85
+   -   -   -   -   -  -   -  - 395 95
+}
+do_execsql_test joinD-1105 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-1106 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1107 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-1108 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON true
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1109 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1110 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-1111 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-1112 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-1113 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1114 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1115 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1116 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c
+  INNER JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1117 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b = t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-1118 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b = t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1119 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t3.y>0
+  INNER JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b = t2.b AND t1.c = t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1120 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  INNER JOIN t4 ON t4.z>0
+  WHERE t1.b = t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1121 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   0 100 200 300   -  -   -  -   -  -
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+   -   -   -   - 100  0   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+}
+do_execsql_test joinD-1122 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-1123 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+}
+do_execsql_test joinD-1124 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON true
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-1125 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+}
+do_execsql_test joinD-1126 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+   -   -   -   - 100  0   -  -   -  -
+}
+do_execsql_test joinD-1127 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-1128 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+   -   -   -   - 100  0   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+}
+do_execsql_test joinD-1129 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1130 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1131 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1132 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c
+  LEFT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1133 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b = t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   0 100 200 300   -  -   -  -   -  -
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+   -   -   -   - 100  0   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+}
+do_execsql_test joinD-1134 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b = t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-1135 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t3.y>0
+  LEFT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b = t2.b AND t1.c = t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1136 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  LEFT JOIN t4 ON t4.z>0
+  WHERE t1.b = t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1137 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-1138 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1139 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-1140 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON true
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1141 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1142 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-1143 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-1144 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-1145 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1146 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1147 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1148 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c
+  RIGHT JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1149 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b = t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-1150 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b = t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1151 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t3.y>0
+  RIGHT JOIN t4 ON t1.d IS NOT DISTINCT FROM t4.d AND t4.z>0
+  WHERE t1.b = t2.b AND t1.c = t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1152 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  RIGHT JOIN t4 ON t4.z>0
+  WHERE t1.b = t2.b AND t1.d IS NOT DISTINCT FROM t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1153 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   0 100 200 300   -  -   -  -   -  -
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+   -   -   -   - 100  0   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-1154 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-1155 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE (t2.x>0 OR t2.x IS NULL)
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-1156 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON true
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t1.b=t2.b AND t2.x>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-1157 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   3 103 203 303   -  - 203  3   -  -
+   6 106 206 306 106  6 206  6   -  -
+   9 109 209 309   -  - 209  9   -  -
+  12 112 212 312 112 12 212 12   -  -
+  15 115 215 315   -  - 215 15 315 15
+  18 118 218 318 118 18 218 18   -  -
+  21 121 221 321   -  - 221 21   -  -
+  24 124 224 324 124 24 224 24   -  -
+  27 127 227 327   -  - 227 27   -  -
+  30 130 230 330 130 30 230 30 330 30
+  33 133 233 333   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+  39 139 239 339   -  - 239 39   -  -
+  42 142 242 342 142 42 242 42   -  -
+  45 145 245 345   -  - 245 45 345 45
+  48 148 248 348 148 48 248 48   -  -
+  51 151 251 351   -  - 251 51   -  -
+  54 154 254 354 154 54 254 54   -  -
+  57 157 257 357   -  - 257 57   -  -
+  60 160 260 360 160 60 260 60 360 60
+  63 163 263 363   -  - 263 63   -  -
+  66 166 266 366 166 66 266 66   -  -
+  69 169 269 369   -  - 269 69   -  -
+  72 172 272 372 172 72 272 72   -  -
+  75 175 275 375   -  - 275 75 375 75
+  78 178 278 378 178 78 278 78   -  -
+  81 181 281 381   -  - 281 81   -  -
+  84 184 284 384 184 84 284 84   -  -
+  87 187 287 387   -  - 287 87   -  -
+  90 190 290 390 190 90 290 90 390 90
+  93 193 293 393   -  - 293 93   -  -
+}
+do_execsql_test joinD-1158 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t3.y>0 OR t3.y IS NULL
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+   -   -   -   - 100  0   -  -   -  -
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-1159 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   5 105 205 305   -  -   -  - 305  5
+  10 110 210 310 110 10   -  - 310 10
+  15 115 215 315   -  - 215 15 315 15
+  20 120 220 320 120 20   -  - 320 20
+  25 125 225 325   -  -   -  - 325 25
+  30 130 230 330 130 30 230 30 330 30
+  35 135 235 335   -  -   -  - 335 35
+  40 140 240 340 140 40   -  - 340 40
+  45 145 245 345   -  - 245 45 345 45
+  50 150 250 350 150 50   -  - 350 50
+  55 155 255 355   -  -   -  - 355 55
+  60 160 260 360 160 60 260 60 360 60
+  65 165 265 365   -  -   -  - 365 65
+  70 170 270 370 170 70   -  - 370 70
+  75 175 275 375   -  - 275 75 375 75
+  80 180 280 380 180 80   -  - 380 80
+  85 185 285 385   -  -   -  - 385 85
+  90 190 290 390 190 90 290 90 390 90
+  95 195 295 395   -  -   -  - 395 95
+}
+do_execsql_test joinD-1160 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z IS NULL OR t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+   -   -   -   - 100  0   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+}
+do_execsql_test joinD-1161 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1162 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t4.z>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  15 115 215 315   -  - 215 15 315 15
+  30 130 230 330 130 30 230 30 330 30
+  45 145 245 345   -  - 245 45 345 45
+  60 160 260 360 160 60 260 60 360 60
+  75 175 275 375   -  - 275 75 375 75
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1163 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d AND t4.z>0
+  WHERE t2.x>0 AND t3.y>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1164 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b=t2.b
+  FULL JOIN t3 ON t1.c=t3.c
+  FULL JOIN t4 ON t1.d=t4.d
+  WHERE t2.x>0 AND t3.y>0 AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  30 130 230 330 130 30 230 30 330 30
+  60 160 260 360 160 60 260 60 360 60
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1165 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t1.b = t2.b AND t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   0 100 200 300   -  -   -  -   -  -
+   1 101 201 301   -  -   -  -   -  -
+   2 102 202 302 102  2   -  -   -  -
+   3 103 203 303   -  - 203  3   -  -
+   4 104 204 304 104  4   -  -   -  -
+   5 105 205 305   -  -   -  - 305  5
+   6 106 206 306 106  6 206  6   -  -
+   7 107 207 307   -  -   -  -   -  -
+   8 108 208 308 108  8   -  -   -  -
+   9 109 209 309   -  - 209  9   -  -
+  10 110 210 310 110 10   -  - 310 10
+  11 111 211 311   -  -   -  -   -  -
+  12 112 212 312 112 12 212 12   -  -
+  13 113 213 313   -  -   -  -   -  -
+  14 114 214 314 114 14   -  -   -  -
+  15 115 215 315   -  - 215 15 315 15
+  16 116 216 316 116 16   -  -   -  -
+  17 117 217 317   -  -   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  19 119 219 319   -  -   -  -   -  -
+  20 120 220 320 120 20   -  - 320 20
+  21 121 221 321   -  - 221 21   -  -
+  22 122 222 322 122 22   -  -   -  -
+  23 123 223 323   -  -   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  25 125 225 325   -  -   -  - 325 25
+  26 126 226 326 126 26   -  -   -  -
+  27 127 227 327   -  - 227 27   -  -
+  28 128 228 328 128 28   -  -   -  -
+  29 129 229 329   -  -   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  31 131 231 331   -  -   -  -   -  -
+  32 132 232 332 132 32   -  -   -  -
+  33 133 233 333   -  - 233 33   -  -
+  34 134 234 334 134 34   -  -   -  -
+  35 135 235 335   -  -   -  - 335 35
+  36 136 236 336 136 36 236 36   -  -
+  37 137 237 337   -  -   -  -   -  -
+  38 138 238 338 138 38   -  -   -  -
+  39 139 239 339   -  - 239 39   -  -
+  40 140 240 340 140 40   -  - 340 40
+  41 141 241 341   -  -   -  -   -  -
+  42 142 242 342 142 42 242 42   -  -
+  43 143 243 343   -  -   -  -   -  -
+  44 144 244 344 144 44   -  -   -  -
+  45 145 245 345   -  - 245 45 345 45
+  46 146 246 346 146 46   -  -   -  -
+  47 147 247 347   -  -   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  49 149 249 349   -  -   -  -   -  -
+  50 150 250 350 150 50   -  - 350 50
+  51 151 251 351   -  - 251 51   -  -
+  52 152 252 352 152 52   -  -   -  -
+  53 153 253 353   -  -   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  55 155 255 355   -  -   -  - 355 55
+  56 156 256 356 156 56   -  -   -  -
+  57 157 257 357   -  - 257 57   -  -
+  58 158 258 358 158 58   -  -   -  -
+  59 159 259 359   -  -   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  61 161 261 361   -  -   -  -   -  -
+  62 162 262 362 162 62   -  -   -  -
+  63 163 263 363   -  - 263 63   -  -
+  64 164 264 364 164 64   -  -   -  -
+  65 165 265 365   -  -   -  - 365 65
+  66 166 266 366 166 66 266 66   -  -
+  67 167 267 367   -  -   -  -   -  -
+  68 168 268 368 168 68   -  -   -  -
+  69 169 269 369   -  - 269 69   -  -
+  70 170 270 370 170 70   -  - 370 70
+  71 171 271 371   -  -   -  -   -  -
+  72 172 272 372 172 72 272 72   -  -
+  73 173 273 373   -  -   -  -   -  -
+  74 174 274 374 174 74   -  -   -  -
+  75 175 275 375   -  - 275 75 375 75
+  76 176 276 376 176 76   -  -   -  -
+  77 177 277 377   -  -   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  79 179 279 379   -  -   -  -   -  -
+  80 180 280 380 180 80   -  - 380 80
+  81 181 281 381   -  - 281 81   -  -
+  82 182 282 382 182 82   -  -   -  -
+  83 183 283 383   -  -   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  85 185 285 385   -  -   -  - 385 85
+  86 186 286 386 186 86   -  -   -  -
+  87 187 287 387   -  - 287 87   -  -
+  88 188 288 388 188 88   -  -   -  -
+  89 189 289 389   -  -   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  91 191 291 391   -  -   -  -   -  -
+  92 192 292 392 192 92   -  -   -  -
+  93 193 293 393   -  - 293 93   -  -
+  94 194 294 394 194 94   -  -   -  -
+  95 195 295 395   -  -   -  - 395 95
+  96   - 296 396   -  -   -  -   -  -
+  97 197   - 397   -  -   -  -   -  -
+  98 198 298   -   -  -   -  -   -  -
+  99   -   -   -   -  -   -  -   -  -
+   -   -   -   - 100  0   -  -   -  -
+   -   -   -   -   -  - 200  0   -  -
+   -   -   -   -   -  -   -  - 300  0
+}
+do_execsql_test joinD-1166 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  WHERE t1.b = t2.b
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   2 102 202 302 102  2   -  -   -  -
+   4 104 204 304 104  4   -  -   -  -
+   6 106 206 306 106  6 206  6   -  -
+   8 108 208 308 108  8   -  -   -  -
+  10 110 210 310 110 10   -  - 310 10
+  12 112 212 312 112 12 212 12   -  -
+  14 114 214 314 114 14   -  -   -  -
+  16 116 216 316 116 16   -  -   -  -
+  18 118 218 318 118 18 218 18   -  -
+  20 120 220 320 120 20   -  - 320 20
+  22 122 222 322 122 22   -  -   -  -
+  24 124 224 324 124 24 224 24   -  -
+  26 126 226 326 126 26   -  -   -  -
+  28 128 228 328 128 28   -  -   -  -
+  30 130 230 330 130 30 230 30 330 30
+  32 132 232 332 132 32   -  -   -  -
+  34 134 234 334 134 34   -  -   -  -
+  36 136 236 336 136 36 236 36   -  -
+  38 138 238 338 138 38   -  -   -  -
+  40 140 240 340 140 40   -  - 340 40
+  42 142 242 342 142 42 242 42   -  -
+  44 144 244 344 144 44   -  -   -  -
+  46 146 246 346 146 46   -  -   -  -
+  48 148 248 348 148 48 248 48   -  -
+  50 150 250 350 150 50   -  - 350 50
+  52 152 252 352 152 52   -  -   -  -
+  54 154 254 354 154 54 254 54   -  -
+  56 156 256 356 156 56   -  -   -  -
+  58 158 258 358 158 58   -  -   -  -
+  60 160 260 360 160 60 260 60 360 60
+  62 162 262 362 162 62   -  -   -  -
+  64 164 264 364 164 64   -  -   -  -
+  66 166 266 366 166 66 266 66   -  -
+  68 168 268 368 168 68   -  -   -  -
+  70 170 270 370 170 70   -  - 370 70
+  72 172 272 372 172 72 272 72   -  -
+  74 174 274 374 174 74   -  -   -  -
+  76 176 276 376 176 76   -  -   -  -
+  78 178 278 378 178 78 278 78   -  -
+  80 180 280 380 180 80   -  - 380 80
+  82 182 282 382 182 82   -  -   -  -
+  84 184 284 384 184 84 284 84   -  -
+  86 186 286 386 186 86   -  -   -  -
+  88 188 288 388 188 88   -  -   -  -
+  90 190 290 390 190 90 290 90 390 90
+  92 192 292 392 192 92   -  -   -  -
+  94 194 294 394 194 94   -  -   -  -
+}
+do_execsql_test joinD-1167 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t3.y>0
+  FULL JOIN t4 ON t1.d = t4.d AND t4.z>0
+  WHERE t1.b = t2.b AND t1.c = t3.c
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+   6 106 206 306 106  6 206  6   -  -
+  12 112 212 312 112 12 212 12   -  -
+  18 118 218 318 118 18 218 18   -  -
+  24 124 224 324 124 24 224 24   -  -
+  30 130 230 330 130 30 230 30 330 30
+  36 136 236 336 136 36 236 36   -  -
+  42 142 242 342 142 42 242 42   -  -
+  48 148 248 348 148 48 248 48   -  -
+  54 154 254 354 154 54 254 54   -  -
+  60 160 260 360 160 60 260 60 360 60
+  66 166 266 366 166 66 266 66   -  -
+  72 172 272 372 172 72 272 72   -  -
+  78 178 278 378 178 78 278 78   -  -
+  84 184 284 384 184 84 284 84   -  -
+  90 190 290 390 190 90 290 90 390 90
+}
+do_execsql_test joinD-1168 {
+  SELECT t1.*, t2.*, t3.*, t4.*
+  FROM t1 FULL JOIN t2 ON t2.x>0
+  FULL JOIN t3 ON t1.c = t3.c AND t3.y>0
+  FULL JOIN t4 ON t4.z>0
+  WHERE t1.b = t2.b AND t1.d = t4.d
+  ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);
+} {
+  10 110 210 310 110 10   -  - 310 10
+  20 120 220 320 120 20   -  - 320 20
+  30 130 230 330 130 30 230 30 330 30
+  40 140 240 340 140 40   -  - 340 40
+  50 150 250 350 150 50   -  - 350 50
+  60 160 260 360 160 60 260 60 360 60
+  70 170 270 370 170 70   -  - 370 70
+  80 180 280 380 180 80   -  - 380 80
+  90 190 290 390 190 90 290 90 390 90
+}
+#############################################################################
+# The following are extra tests added manually
+do_execsql_test joinD-extra-1000 {
+  CREATE VIEW v1 AS
+    SELECT *
+    FROM t1 INNER JOIN t2 ON t1.b=t2.b AND t2.x>0
+    RIGHT JOIN t3 ON t1.c=t3.c AND t3.y>0
+    LEFT JOIN t4 ON t1.d=t4.d AND t4.z>0;
+  CREATE TRIGGER v1r1 INSTEAD OF UPDATE OF c ON v1 BEGIN
+    UPDATE t1 SET c=new.c WHERE (a,b,c,d) IS (old.a,old.b,old.c,old.d);
+    UPDATE t3 SET c=new.c WHERE (c,y) IS (old.c,old.y);
+  END;
+  SELECT * FROM v1 WHERE y BETWEEN 30 AND 40 ORDER BY y;
+} {
+  30 130 230 330 130 30 230 30 330 30
+   -   -   -   -   -  - 233 33   -  -
+  36 136 236 336 136 36 236 36   -  -
+   -   -   -   -   -  - 239 39   -  -
+}
+do_execsql_test joinD-extra-1010 {
+  BEGIN;
+  UPDATE v1 SET c=c+1000 WHERE y BETWEEN 30 and 40;
+  SELECT * FROM v1 WHERE y BETWEEN 30 AND 40 ORDER BY y;
+  ROLLBACK;
+} {
+  30 130 1230 330 130 30 1230 30 330 30
+   -   -    -   -   -  -  233 33   -  -
+  36 136 1236 336 136 36 1236 36   -  -
+   -   -    -   -   -  -  239 39   -  -
+}
+finish_test
+#############################################################################
+# This is the TCL script used to generate the psql script that generated
+# the data above.
+#
+# puts "
+# \\pset border off
+# \\pset tuples_only on
+# \\pset null -
+# 
+# DROP TABLE IF EXISTS t1;
+# DROP TABLE IF EXISTS t2;
+# DROP TABLE IF EXISTS t3;
+# DROP TABLE IF EXISTS t4;
+# CREATE TABLE t1(a INT, b INT, c INT, d INT);
+# WITH RECURSIVE c(x) AS (VALUES(0) UNION ALL SELECT x+1 FROM c WHERE x<95)
+#   INSERT INTO t1(a,b,c,d) SELECT x, x+100, x+200, x+300 FROM c;
+# CREATE TABLE t2(b INT, x INT);
+# INSERT INTO t2(b,x) SELECT b, a FROM t1 WHERE a%2=0;
+# CREATE INDEX t2b ON t2(b);
+# CREATE TABLE t3(c INT, y INT);
+# INSERT INTO t3(c,y) SELECT c, a FROM t1 WHERE a%3=0;
+# CREATE INDEX t3c ON t3(c);
+# CREATE TABLE t4(d INT, z INT);
+# INSERT INTO t4(d,z) SELECT d, a FROM t1 WHERE a%5=0;
+# CREATE INDEX t4d ON t4(d);
+# INSERT INTO t1(a,b,c,d) VALUES
+#   (96,NULL,296,396),
+#   (97,197,NULL,397),
+#   (98,198,298,NULL),
+#   (99,NULL,NULL,NULL);
+# "
+# 
+# proc echo {prefix txt} {
+#   regsub -all {\n} $txt \n$prefix txt
+#   puts "$prefix$txt"
+# }
+# 
+# set n 0
+# foreach j1 {INNER LEFT RIGHT FULL} {
+#   foreach j2 {INNER LEFT RIGHT FULL} {
+#     foreach j3 {INNER LEFT RIGHT FULL} {
+# 
+# incr n
+# set q1 ""
+# append q1 "SELECT t1.*, t2.*, t3.*, t4.*\n"
+# append q1 "  FROM t1 $j1 JOIN t2 ON t1.b=t2.b AND t2.x>0\n"
+# append q1 "          $j2 JOIN t3 ON t1.c=t3.c AND t3.y>0\n"
+# append q1 "          $j3 JOIN t4 ON t1.d=t4.d AND t4.z>0\n"
+# append q1 " ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);"
+# 
+# echo "\\qecho " "do_execsql_test joinB-$n \{"
+# echo "\\qecho X  " $q1
+# echo "\\qecho " "\} \{"
+# puts $q1
+# echo "\\qecho " "\}"
+# 
+# if {$j1!="FULL"} {
+#   incr n
+#   set q1 ""
+#   append q1 "SELECT t1.*, t2.*, t3.*, t4.*\n"
+#   append q1 "  FROM t1 $j1 JOIN t2 ON t1.b IS NOT DISTINCT FROM t2.b AND t2.x>0\n"
+#   append q1 "          $j2 JOIN t3 ON t1.c=t3.c AND t3.y>0\n"
+#   append q1 "          $j3 JOIN t4 ON t1.d=t4.d AND t4.z>0\n"
+#   append q1 " ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);"
+#   
+#   echo "\\qecho " "do_execsql_test joinB-$n \{"
+#   echo "\\qecho X  " $q1
+#   echo "\\qecho " "\} \{"
+#   puts $q1
+#   echo "\\qecho " "\}"
+# }
+# 
+# incr n
+# set q1 ""
+# append q1 "SELECT t1.*, t2.*, t3.*, t4.*\n"
+# append q1 "  FROM t1 $j1 JOIN t2 ON t1.b=t2.b\n"
+# append q1 "          $j2 JOIN t3 ON t1.c=t3.c AND t3.y>0\n"
+# append q1 "          $j3 JOIN t4 ON t1.d=t4.d AND t4.z>0\n"
+# append q1 " WHERE t2.x>0\n"
+# append q1 " ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);"
+# 
+# echo "\\qecho " "do_execsql_test joinB-$n \{"
+# echo "\\qecho X  " $q1
+# echo "\\qecho " "\} \{"
+# puts $q1
+# echo "\\qecho " "\}"
+# 
+# incr n
+# set q1 ""
+# append q1 "SELECT t1.*, t2.*, t3.*, t4.*\n"
+# append q1 "  FROM t1 $j1 JOIN t2 ON t1.b=t2.b\n"
+# append q1 "          $j2 JOIN t3 ON t1.c=t3.c AND t3.y>0\n"
+# append q1 "          $j3 JOIN t4 ON t1.d=t4.d AND t4.z>0\n"
+# append q1 " WHERE (t2.x>0 OR t2.x IS NULL)\n"
+# append q1 " ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);"
+# 
+# echo "\\qecho " "do_execsql_test joinB-$n \{"
+# echo "\\qecho X  " $q1
+# echo "\\qecho " "\} \{"
+# puts $q1
+# echo "\\qecho " "\}"
+# 
+# incr n
+# set q1 ""
+# append q1 "SELECT t1.*, t2.*, t3.*, t4.*\n"
+# append q1 "  FROM t1 $j1 JOIN t2 ON true\n"
+# append q1 "          $j2 JOIN t3 ON t1.c=t3.c AND t3.y>0\n"
+# append q1 "          $j3 JOIN t4 ON t1.d=t4.d AND t4.z>0\n"
+# append q1 " WHERE t1.b=t2.b AND t2.x>0\n"
+# append q1 " ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);"
+# 
+# echo "\\qecho " "do_execsql_test joinB-$n \{"
+# echo "\\qecho X  " $q1
+# echo "\\qecho " "\} \{"
+# puts $q1
+# echo "\\qecho " "\}"
+# 
+# incr n
+# set q1 ""
+# append q1 "SELECT t1.*, t2.*, t3.*, t4.*\n"
+# append q1 "  FROM t1 $j1 JOIN t2 ON t1.b=t2.b AND t2.x>0\n"
+# append q1 "          $j2 JOIN t3 ON t1.c=t3.c\n"
+# append q1 "          $j3 JOIN t4 ON t1.d=t4.d AND t4.z>0\n"
+# append q1 " WHERE t3.y>0\n"
+# append q1 " ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);"
+# 
+# echo "\\qecho " "do_execsql_test joinB-$n \{"
+# echo "\\qecho X  " $q1
+# echo "\\qecho " "\} \{"
+# puts $q1
+# echo "\\qecho " "\}"
+# 
+# incr n
+# set q1 ""
+# append q1 "SELECT t1.*, t2.*, t3.*, t4.*\n"
+# append q1 "  FROM t1 $j1 JOIN t2 ON t1.b=t2.b AND t2.x>0\n"
+# append q1 "          $j2 JOIN t3 ON t1.c=t3.c\n"
+# append q1 "          $j3 JOIN t4 ON t1.d=t4.d AND t4.z>0\n"
+# append q1 " WHERE t3.y>0 OR t3.y IS NULL\n"
+# append q1 " ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);"
+# 
+# echo "\\qecho " "do_execsql_test joinB-$n \{"
+# echo "\\qecho X  " $q1
+# echo "\\qecho " "\} \{"
+# puts $q1
+# echo "\\qecho " "\}"
+# 
+# incr n
+# set q1 ""
+# append q1 "SELECT t1.*, t2.*, t3.*, t4.*\n"
+# append q1 "  FROM t1 $j1 JOIN t2 ON t1.b=t2.b AND t2.x>0\n"
+# append q1 "          $j2 JOIN t3 ON t1.c=t3.c AND t3.y>0\n"
+# append q1 "          $j3 JOIN t4 ON t1.d=t4.d\n"
+# append q1 " WHERE t4.z>0\n"
+# append q1 " ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);"
+# 
+# echo "\\qecho " "do_execsql_test joinB-$n \{"
+# echo "\\qecho X  " $q1
+# echo "\\qecho " "\} \{"
+# puts $q1
+# echo "\\qecho " "\}"
+# 
+# incr n
+# set q1 ""
+# append q1 "SELECT t1.*, t2.*, t3.*, t4.*\n"
+# append q1 "  FROM t1 $j1 JOIN t2 ON t1.b=t2.b AND t2.x>0\n"
+# append q1 "          $j2 JOIN t3 ON t1.c=t3.c AND t3.y>0\n"
+# append q1 "          $j3 JOIN t4 ON t1.d=t4.d\n"
+# append q1 " WHERE t4.z IS NULL OR t4.z>0\n"
+# append q1 " ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);"
+# 
+# echo "\\qecho " "do_execsql_test joinB-$n \{"
+# echo "\\qecho X  " $q1
+# echo "\\qecho " "\} \{"
+# puts $q1
+# echo "\\qecho " "\}"
+# 
+# incr n
+# set q1 ""
+# append q1 "SELECT t1.*, t2.*, t3.*, t4.*\n"
+# append q1 "  FROM t1 $j1 JOIN t2 ON t1.b=t2.b\n"
+# append q1 "          $j2 JOIN t3 ON t1.c=t3.c AND t3.y>0\n"
+# append q1 "          $j3 JOIN t4 ON t1.d=t4.d\n"
+# append q1 " WHERE t2.x>0 AND t4.z>0\n"
+# append q1 " ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);"
+# 
+# echo "\\qecho " "do_execsql_test joinB-$n \{"
+# echo "\\qecho X  " $q1
+# echo "\\qecho " "\} \{"
+# puts $q1
+# echo "\\qecho " "\}"
+# 
+# incr n
+# set q1 ""
+# append q1 "SELECT t1.*, t2.*, t3.*, t4.*\n"
+# append q1 "  FROM t1 $j1 JOIN t2 ON t1.b=t2.b AND t2.x>0\n"
+# append q1 "          $j2 JOIN t3 ON t1.c=t3.c\n"
+# append q1 "          $j3 JOIN t4 ON t1.d=t4.d\n"
+# append q1 " WHERE t4.z>0 AND t3.y>0\n"
+# append q1 " ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);"
+# 
+# echo "\\qecho " "do_execsql_test joinB-$n \{"
+# echo "\\qecho X  " $q1
+# echo "\\qecho " "\} \{"
+# puts $q1
+# echo "\\qecho " "\}"
+# 
+# incr n
+# set q1 ""
+# append q1 "SELECT t1.*, t2.*, t3.*, t4.*\n"
+# append q1 "  FROM t1 $j1 JOIN t2 ON t1.b=t2.b\n"
+# append q1 "          $j2 JOIN t3 ON t1.c=t3.c\n"
+# append q1 "          $j3 JOIN t4 ON t1.d=t4.d AND t4.z>0\n"
+# append q1 " WHERE t2.x>0 AND t3.y>0\n"
+# append q1 " ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);"
+# 
+# echo "\\qecho " "do_execsql_test joinB-$n \{"
+# echo "\\qecho X  " $q1
+# echo "\\qecho " "\} \{"
+# puts $q1
+# echo "\\qecho " "\}"
+# 
+# incr n
+# set q1 ""
+# append q1 "SELECT t1.*, t2.*, t3.*, t4.*\n"
+# append q1 "  FROM t1 $j1 JOIN t2 ON t1.b=t2.b\n"
+# append q1 "          $j2 JOIN t3 ON t1.c=t3.c\n"
+# append q1 "          $j3 JOIN t4 ON t1.d=t4.d\n"
+# append q1 " WHERE t2.x>0 AND t3.y>0 AND t4.z>0\n"
+# append q1 " ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);"
+# 
+# echo "\\qecho " "do_execsql_test joinB-$n \{"
+# echo "\\qecho X  " $q1
+# echo "\\qecho " "\} \{"
+# puts $q1
+# echo "\\qecho " "\}"
+# 
+# set op1 [expr {$j1=="FULL"?"=":"IS NOT DISTINCT FROM"}]
+# set op2 [expr {$j2=="FULL"?"=":"IS NOT DISTINCT FROM"}]
+# set op3 [expr {$j3=="FULL"?"=":"IS NOT DISTINCT FROM"}]
+# incr n
+# set q1 ""
+# append q1 "SELECT t1.*, t2.*, t3.*, t4.*\n"
+# append q1 "  FROM t1 $j1 JOIN t2 ON t1.b $op1 t2.b AND t2.x>0\n"
+# append q1 "          $j2 JOIN t3 ON t1.c $op2 t3.c AND t3.y>0\n"
+# append q1 "          $j3 JOIN t4 ON t1.d $op3 t4.d AND t4.z>0\n"
+# append q1 " ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);"
+# 
+# echo "\\qecho " "do_execsql_test joinB-$n \{"
+# echo "\\qecho X  " $q1
+# echo "\\qecho " "\} \{"
+# puts $q1
+# echo "\\qecho " "\}"
+# 
+# incr n
+# set q1 ""
+# append q1 "SELECT t1.*, t2.*, t3.*, t4.*\n"
+# append q1 "  FROM t1 $j1 JOIN t2 ON t2.x>0\n"
+# append q1 "          $j2 JOIN t3 ON t1.c $op2 t3.c AND t3.y>0\n"
+# append q1 "          $j3 JOIN t4 ON t1.d $op3 t4.d AND t4.z>0\n"
+# append q1 " WHERE t1.b $op1 t2.b\n"
+# append q1 " ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);"
+# 
+# echo "\\qecho " "do_execsql_test joinB-$n \{"
+# echo "\\qecho X  " $q1
+# echo "\\qecho " "\} \{"
+# puts $q1
+# echo "\\qecho " "\}"
+# 
+# incr n
+# set q1 ""
+# append q1 "SELECT t1.*, t2.*, t3.*, t4.*\n"
+# append q1 "  FROM t1 $j1 JOIN t2 ON t2.x>0\n"
+# append q1 "          $j2 JOIN t3 ON t3.y>0\n"
+# append q1 "          $j3 JOIN t4 ON t1.d $op3 t4.d AND t4.z>0\n"
+# append q1 " WHERE t1.b $op1 t2.b AND t1.c $op2 t3.c\n"
+# append q1 " ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);"
+# 
+# echo "\\qecho " "do_execsql_test joinB-$n \{"
+# echo "\\qecho X  " $q1
+# echo "\\qecho " "\} \{"
+# puts $q1
+# echo "\\qecho " "\}"
+# 
+# incr n
+# set q1 ""
+# append q1 "SELECT t1.*, t2.*, t3.*, t4.*\n"
+# append q1 "  FROM t1 $j1 JOIN t2 ON t2.x>0\n"
+# append q1 "          $j2 JOIN t3 ON t1.c $op2 t3.c AND t3.y>0\n"
+# append q1 "          $j3 JOIN t4 ON t4.z>0\n"
+# append q1 " WHERE t1.b $op1 t2.b AND t1.d $op3 t4.d\n"
+# append q1 " ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);"
+# 
+# echo "\\qecho " "do_execsql_test joinB-$n \{"
+# echo "\\qecho X  " $q1
+# echo "\\qecho " "\} \{"
+# puts $q1
+# echo "\\qecho " "\}"
+# 
+# if {$j1!="FULL"} {
+#   incr n
+#   set q1 ""
+#   append q1 "SELECT t1.*, t2.*, t3.*, t4.*\n"
+#   append q1 "  FROM t1 $j1 JOIN t2 ON t1.b IN (t2.b,-2,-3) AND t2.x>0\n"
+#   append q1 "          $j2 JOIN t3 ON t1.c=t3.c AND t3.y>0\n"
+#   append q1 "          $j3 JOIN t4 ON t1.d=t4.d AND t4.z>0\n"
+#   append q1 " ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);"
+# 
+#   echo "\\qecho " "do_execsql_test joinB-$n \{"
+#   echo "\\qecho X  " $q1
+#   echo "\\qecho " "\} \{"
+#   puts $q1
+#   echo "\\qecho " "\}"
+# }
+# 
+# if {$j2!="FULL"} {
+#   incr n
+#   set q1 ""
+#   append q1 "SELECT t1.*, t2.*, t3.*, t4.*\n"
+#   append q1 "  FROM t1 $j1 JOIN t2 ON t1.b=t2.b AND t2.x>0\n"
+#   append q1 "          $j2 JOIN t3 ON t1.c IN (-4,t3.c,-5) AND t3.y>0\n"
+#   append q1 "          $j3 JOIN t4 ON t1.d=t4.d AND t4.z>0\n"
+#   append q1 " ORDER BY coalesce(t1.a,t2.b,t3.c,t4.d,0);"
+# 
+#   echo "\\qecho " "do_execsql_test joinB-$n \{"
+#   echo "\\qecho X  " $q1
+#   echo "\\qecho " "\} \{"
+#   puts $q1
+#   echo "\\qecho " "\}"
+# }
+#     }
+#   }
+# }
+#
diff --git a/test/joinE.test b/test/joinE.test
new file mode 100644
index 0000000000000000000000000000000000000000..8c8e72ab2d258668db1a1166a28c5ce997e12244
--- /dev/null
+++ b/test/joinE.test
@@ -0,0 +1,443 @@
+# 2022-05-13
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements tests for JOINs that use Bloom filters.
+#
+# The test case output is (mostly) all generated by PostgreSQL 14.  This
+# test module was created as follows:
+#
+#   1.   Run a TCL script (included at the bottom of this file) that
+#        generates an input script for "psql" that will run man
+#        diverse tests on joins.
+#
+#   2.   Run the script from step (1) through psql and collect the
+#        output.
+#
+#   3.   Make a few minor global search-and-replace operations to convert
+#        the psql output into a form suitable for this test module.
+#
+#   4.   Add this header, and the script content at the footer.
+#
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+db nullvalue -
+db eval {
+  CREATE TABLE t1(a INT);
+  INSERT INTO t1 VALUES(1),(NULL);
+  CREATE TABLE t2(b INT);
+  INSERT INTO t2 VALUES(2),(NULL);
+}
+do_execsql_test joinE-1 {
+  SELECT a, b
+  FROM t1 INNER JOIN t2 ON true
+  ORDER BY coalesce(a,b,3);
+} {
+  1 2
+  1 -
+  - 2
+  - -
+}
+do_execsql_test joinE-2 {
+  SELECT a, b
+  FROM t1 INNER JOIN t2 ON true WHERE a IS NULL
+  ORDER BY coalesce(a,b,3);
+} {
+  - 2
+  - -
+}
+do_execsql_test joinE-3 {
+  SELECT a, b
+  FROM t1 INNER JOIN t2 ON a IS NULL
+  ORDER BY coalesce(a,b,3);
+} {
+  - 2
+  - -
+}
+do_execsql_test joinE-4 {
+  SELECT a, b
+  FROM t1 INNER JOIN t2 ON true WHERE b IS NULL
+  ORDER BY coalesce(a,b,3);
+} {
+  1 -
+  - -
+}
+do_execsql_test joinE-5 {
+  SELECT a, b
+  FROM t1 INNER JOIN t2 ON b IS NULL
+  ORDER BY coalesce(a,b,3);
+} {
+  1 -
+  - -
+}
+do_execsql_test joinE-6 {
+  SELECT a, b
+  FROM t1 LEFT JOIN t2 ON true
+  ORDER BY coalesce(a,b,3);
+} {
+  1 2
+  1 -
+  - 2
+  - -
+}
+do_execsql_test joinE-7 {
+  SELECT a, b
+  FROM t1 LEFT JOIN t2 ON true WHERE a IS NULL
+  ORDER BY coalesce(a,b,3);
+} {
+  - 2
+  - -
+}
+do_execsql_test joinE-8 {
+  SELECT a, b
+  FROM t1 LEFT JOIN t2 ON a IS NULL
+  ORDER BY coalesce(a,b,3);
+} {
+  1 -
+  - 2
+  - -
+}
+do_execsql_test joinE-9 {
+  SELECT a, b
+  FROM t1 LEFT JOIN t2 ON true WHERE b IS NULL
+  ORDER BY coalesce(a,b,3);
+} {
+  1 -
+  - -
+}
+do_execsql_test joinE-10 {
+  SELECT a, b
+  FROM t1 LEFT JOIN t2 ON b IS NULL
+  ORDER BY coalesce(a,b,3);
+} {
+  1 -
+  - -
+}
+do_execsql_test joinE-11 {
+  SELECT a, b
+  FROM t1 RIGHT JOIN t2 ON true
+  ORDER BY coalesce(a,b,3);
+} {
+  1 2
+  1 -
+  - 2
+  - -
+}
+do_execsql_test joinE-12 {
+  SELECT a, b
+  FROM t1 RIGHT JOIN t2 ON true WHERE a IS NULL
+  ORDER BY coalesce(a,b,3);
+} {
+  - 2
+  - -
+}
+do_execsql_test joinE-13 {
+  SELECT a, b
+  FROM t1 RIGHT JOIN t2 ON a IS NULL
+  ORDER BY coalesce(a,b,3);
+} {
+  - 2
+  - -
+}
+do_execsql_test joinE-14 {
+  SELECT a, b
+  FROM t1 RIGHT JOIN t2 ON true WHERE b IS NULL
+  ORDER BY coalesce(a,b,3);
+} {
+  1 -
+  - -
+}
+do_execsql_test joinE-15 {
+  SELECT a, b
+  FROM t1 RIGHT JOIN t2 ON b IS NULL
+  ORDER BY coalesce(a,b,3);
+} {
+  1 -
+  - 2
+  - -
+}
+do_execsql_test joinE-16 {
+  SELECT a, b
+  FROM t1 FULL JOIN t2 ON true
+  ORDER BY coalesce(a,b,3);
+} {
+  1 2
+  1 -
+  - 2
+  - -
+}
+do_execsql_test joinE-17 {
+  SELECT a, b
+  FROM t1 FULL JOIN t2 ON true WHERE a IS NULL
+  ORDER BY coalesce(a,b,3);
+} {
+  - 2
+  - -
+}
+
+# PG-14 is unable to perform this join.  It says:  FULL JOIN is only
+# supported with merge-joinable or hash-joinable join conditions
+#   
+# do_execsql_test joinE-18 {
+#  SELECT a, b
+#  FROM t1 FULL JOIN t2 ON a IS NULL
+#  ORDER BY coalesce(a,b,3);
+# } {
+# }
+
+do_execsql_test joinE-19 {
+  SELECT a, b
+  FROM t1 FULL JOIN t2 ON true WHERE b IS NULL
+  ORDER BY coalesce(a,b,3);
+} {
+  1 -
+  - -
+}
+
+# PG-14 is unable to perform this join.  It says:  FULL JOIN is only
+# supported with merge-joinable or hash-joinable join conditions
+#   
+# do_execsql_test joinE-20 {
+#   SELECT a, b
+#   FROM t1 FULL JOIN t2 ON b IS NULL
+#   ORDER BY coalesce(a,b,3);
+# } {
+# }
+
+db eval {
+  DELETE FROM t1;
+  INSERT INTO t1 VALUES(1);
+  DELETE FROM t2;
+  INSERT INTO t2 VALUES(NULL);
+}
+
+do_execsql_test joinE-21 {
+  SELECT a, b
+  FROM t1 INNER JOIN t2 ON true
+  ORDER BY coalesce(a,b,3);
+} {
+  1 -
+}
+do_execsql_test joinE-22 {
+  SELECT a, b
+  FROM t1 INNER JOIN t2 ON true WHERE a IS NULL
+  ORDER BY coalesce(a,b,3);
+} {
+}
+do_execsql_test joinE-23 {
+  SELECT a, b
+  FROM t1 INNER JOIN t2 ON a IS NULL
+  ORDER BY coalesce(a,b,3);
+} {
+}
+do_execsql_test joinE-24 {
+  SELECT a, b
+  FROM t1 INNER JOIN t2 ON true WHERE b IS NULL
+  ORDER BY coalesce(a,b,3);
+} {
+  1 -
+}
+do_execsql_test joinE-25 {
+  SELECT a, b
+  FROM t1 INNER JOIN t2 ON b IS NULL
+  ORDER BY coalesce(a,b,3);
+} {
+  1 -
+}
+do_execsql_test joinE-26 {
+  SELECT a, b
+  FROM t1 LEFT JOIN t2 ON true
+  ORDER BY coalesce(a,b,3);
+} {
+  1 -
+}
+do_execsql_test joinE-27 {
+  SELECT a, b
+  FROM t1 LEFT JOIN t2 ON true WHERE a IS NULL
+  ORDER BY coalesce(a,b,3);
+} {
+}
+do_execsql_test joinE-28 {
+  SELECT a, b
+  FROM t1 LEFT JOIN t2 ON a IS NULL
+  ORDER BY coalesce(a,b,3);
+} {
+  1 -
+}
+do_execsql_test joinE-29 {
+  SELECT a, b
+  FROM t1 LEFT JOIN t2 ON true WHERE b IS NULL
+  ORDER BY coalesce(a,b,3);
+} {
+  1 -
+}
+do_execsql_test joinE-30 {
+  SELECT a, b
+  FROM t1 LEFT JOIN t2 ON b IS NULL
+  ORDER BY coalesce(a,b,3);
+} {
+  1 -
+}
+do_execsql_test joinE-31 {
+  SELECT a, b
+  FROM t1 RIGHT JOIN t2 ON true
+  ORDER BY coalesce(a,b,3);
+} {
+  1 -
+}
+
+do_execsql_test joinE-32 {
+  SELECT a, b
+  FROM t1 RIGHT JOIN t2 ON true WHERE a IS NULL
+  ORDER BY coalesce(a,b,3);
+} {
+}
+
+do_execsql_test joinE-33 {
+  SELECT a, b
+  FROM t1 RIGHT JOIN t2 ON a IS NULL
+  ORDER BY coalesce(a,b,3);
+} {
+  - -
+}
+do_execsql_test joinE-34 {
+  SELECT a, b
+  FROM t1 RIGHT JOIN t2 ON true WHERE b IS NULL
+  ORDER BY coalesce(a,b,3);
+} {
+  1 -
+}
+do_execsql_test joinE-35 {
+  SELECT a, b
+  FROM t1 RIGHT JOIN t2 ON b IS NULL
+  ORDER BY coalesce(a,b,3);
+} {
+  1 -
+}
+do_execsql_test joinE-36 {
+  SELECT a, b
+  FROM t1 FULL JOIN t2 ON true
+  ORDER BY coalesce(a,b,3);
+} {
+  1 -
+}
+do_execsql_test joinE-37 {
+  SELECT a, b
+  FROM t1 FULL JOIN t2 ON true WHERE a IS NULL
+  ORDER BY coalesce(a,b,3);
+} {
+}
+
+# PG-14 is unable
+#
+# do_execsql_test joinE-38 {
+#   SELECT a, b
+#   FROM t1 FULL JOIN t2 ON a IS NULL
+#   ORDER BY coalesce(a,b,3);
+# } {
+# }
+
+do_execsql_test joinE-39 {
+  SELECT a, b
+  FROM t1 FULL JOIN t2 ON true WHERE b IS NULL
+  ORDER BY coalesce(a,b,3);
+} {
+  1 -
+}
+
+# PG-14 is unable
+# do_execsql_test joinE-40 {
+#   SELECT a, b
+#   FROM t1 FULL JOIN t2 ON b IS NULL
+#   ORDER BY coalesce(a,b,3);
+# } {
+# }
+
+finish_test
+
+##############################################################################
+# This is the PG-14 test script generator
+#
+# puts "
+# \\pset border off
+# \\pset tuples_only on
+# \\pset null -
+# 
+# DROP TABLE IF EXISTS t1;
+# DROP TABLE IF EXISTS t2;
+# CREATE TABLE t1(a INT);
+# INSERT INTO t1 VALUES(1),(NULL);
+# CREATE TABLE t2(b INT);
+# INSERT INTO t2 VALUES(2),(NULL);
+# "
+# 
+# proc echo {prefix txt} {
+#   regsub -all {\n} $txt \n$prefix txt
+#   puts "$prefix$txt"
+# }
+# 
+# set n 0
+# set k 0
+# foreach j1 {INNER LEFT RIGHT FULL} {
+#   foreach on1 {
+#      true
+#      {true WHERE a IS NULL}
+#      {a IS NULL}
+#      {true WHERE b IS NULL}
+#      {b IS NULL}
+#   } {
+# 
+# incr n
+# incr k
+# set q1 ""
+# append q1 "SELECT a, b\n"
+# append q1 "  FROM t1 $j1 JOIN t2 ON $on1\n"
+# append q1 " ORDER BY coalesce(a,b,3);"
+# 
+# echo "\\qecho " "do_execsql_test joinE-$n \{"
+# echo "\\qecho X  " $q1
+# echo "\\qecho " "\} \{"
+# puts $q1
+# echo "\\qecho " "\}"
+# 
+#   }
+# }
+# 
+# puts "
+# DELETE FROM t1;
+# INSERT INTO t1 VALUES(1);
+# DELETE FROM t2;
+# INSERT INTO t2 VALUES(NULL);
+# "
+# 
+# foreach j1 {INNER LEFT RIGHT FULL} {
+#   foreach on1 {
+#      true
+#      {true WHERE a IS NULL}
+#      {a IS NULL}
+#      {true WHERE b IS NULL}
+#      {b IS NULL}
+#   } {
+# 
+# incr n
+# incr k
+# set q1 ""
+# append q1 "SELECT a, b\n"
+# append q1 "  FROM t1 $j1 JOIN t2 ON $on1\n"
+# append q1 " ORDER BY coalesce(a,b,3);"
+# 
+# echo "\\qecho " "do_execsql_test joinE-$n \{"
+# echo "\\qecho X  " $q1
+# echo "\\qecho " "\} \{"
+# puts $q1
+# echo "\\qecho " "\}"
+# 
+#   }
+# }
diff --git a/test/joinF.test b/test/joinF.test
new file mode 100644
index 0000000000000000000000000000000000000000..0848e37d141c93703a8fcd39ea537a5afb9cede2
--- /dev/null
+++ b/test/joinF.test
@@ -0,0 +1,613 @@
+# 2022-05-31
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements tests for JOINs
+#
+# The test case output is (mostly) all generated by PostgreSQL 14.  This
+# test module was created as follows:
+#
+#   1.   Run a TCL script (included at the bottom of this file) that
+#        generates an input script for "psql" that will run man
+#        diverse tests on joins.
+#
+#   2.   Run the script from step (1) through psql and collect the
+#        output.
+#
+#   3.   Make a few minor global search-and-replace operations to convert
+#        the psql output into a form suitable for this test module.
+#
+#   4.   Add this header, and the script content at the footer.
+#
+# A few extra tests that were not generated from postgresql output are
+# added at the end.
+#
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+db nullvalue -
+db eval {
+  CREATE TABLE t1(x INT);
+  CREATE TABLE t2(y INT);
+  CREATE TABLE t3(z INT);
+  CREATE TABLE t4(w INT);
+  INSERT INTO t1 VALUES(10);
+  INSERT INTO t3 VALUES(20),(30);
+  INSERT INTO t4 VALUES(50);
+}
+do_execsql_test joinF-1 {
+  SELECT *
+  FROM t1 INNER JOIN t2 ON true
+  INNER JOIN t3 ON t2.y IS NOT NULL
+  INNER JOIN t4 ON true
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+}
+do_execsql_test joinF-2 {
+  SELECT *
+  FROM t1 INNER JOIN t2 ON true
+  INNER JOIN t3 ON t2.y IS NOT NULL
+  INNER JOIN t4 ON true
+  WHERE (t3.z!=400 AND t3.z!=500 AND t3.z!=600)
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+}
+do_execsql_test joinF-3 {
+  SELECT *
+  FROM t1 INNER JOIN t2 ON true
+  INNER JOIN t3 ON t2.y IS NOT NULL
+  LEFT JOIN t4 ON true
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+}
+do_execsql_test joinF-4 {
+  SELECT *
+  FROM t1 INNER JOIN t2 ON true
+  INNER JOIN t3 ON t2.y IS NOT NULL
+  LEFT JOIN t4 ON true
+  WHERE (t3.z!=400 AND t3.z!=500 AND t3.z!=600)
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+}
+do_execsql_test joinF-5 {
+  SELECT *
+  FROM t1 INNER JOIN t2 ON true
+  INNER JOIN t3 ON t2.y IS NOT NULL
+  RIGHT JOIN t4 ON true
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+  - - - 50
+}
+do_execsql_test joinF-6 {
+  SELECT *
+  FROM t1 INNER JOIN t2 ON true
+  INNER JOIN t3 ON t2.y IS NOT NULL
+  RIGHT JOIN t4 ON true
+  WHERE (t3.z!=400 AND t3.z!=500 AND t3.z!=600)
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+}
+do_execsql_test joinF-7 {
+  SELECT *
+  FROM t1 INNER JOIN t2 ON true
+  LEFT JOIN t3 ON t2.y IS NOT NULL
+  INNER JOIN t4 ON true
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+}
+do_execsql_test joinF-8 {
+  SELECT *
+  FROM t1 INNER JOIN t2 ON true
+  LEFT JOIN t3 ON t2.y IS NOT NULL
+  INNER JOIN t4 ON true
+  WHERE (t3.z!=400 AND t3.z!=500 AND t3.z!=600)
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+}
+do_execsql_test joinF-9 {
+  SELECT *
+  FROM t1 INNER JOIN t2 ON true
+  LEFT JOIN t3 ON t2.y IS NOT NULL
+  LEFT JOIN t4 ON true
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+}
+do_execsql_test joinF-10 {
+  SELECT *
+  FROM t1 INNER JOIN t2 ON true
+  LEFT JOIN t3 ON t2.y IS NOT NULL
+  LEFT JOIN t4 ON true
+  WHERE (t3.z!=400 AND t3.z!=500 AND t3.z!=600)
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+}
+do_execsql_test joinF-11 {
+  SELECT *
+  FROM t1 INNER JOIN t2 ON true
+  LEFT JOIN t3 ON t2.y IS NOT NULL
+  RIGHT JOIN t4 ON true
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+  - - - 50
+}
+do_execsql_test joinF-12 {
+  SELECT *
+  FROM t1 INNER JOIN t2 ON true
+  LEFT JOIN t3 ON t2.y IS NOT NULL
+  RIGHT JOIN t4 ON true
+  WHERE (t3.z!=400 AND t3.z!=500 AND t3.z!=600)
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+}
+do_execsql_test joinF-13 {
+  SELECT *
+  FROM t1 INNER JOIN t2 ON true
+  RIGHT JOIN t3 ON t2.y IS NOT NULL
+  INNER JOIN t4 ON true
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+  - - 20 50
+  - - 30 50
+}
+do_execsql_test joinF-14 {
+  SELECT *
+  FROM t1 INNER JOIN t2 ON true
+  RIGHT JOIN t3 ON t2.y IS NOT NULL
+  INNER JOIN t4 ON true
+  WHERE (t3.z!=400 AND t3.z!=500 AND t3.z!=600)
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+  - - 20 50
+  - - 30 50
+}
+do_execsql_test joinF-15 {
+  SELECT *
+  FROM t1 INNER JOIN t2 ON true
+  RIGHT JOIN t3 ON t2.y IS NOT NULL
+  LEFT JOIN t4 ON true
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+  - - 20 50
+  - - 30 50
+}
+do_execsql_test joinF-16 {
+  SELECT *
+  FROM t1 INNER JOIN t2 ON true
+  RIGHT JOIN t3 ON t2.y IS NOT NULL
+  LEFT JOIN t4 ON true
+  WHERE (t3.z!=400 AND t3.z!=500 AND t3.z!=600)
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+  - - 20 50
+  - - 30 50
+}
+do_execsql_test joinF-17 {
+  SELECT *
+  FROM t1 INNER JOIN t2 ON true
+  RIGHT JOIN t3 ON t2.y IS NOT NULL
+  RIGHT JOIN t4 ON true
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+  - - 20 50
+  - - 30 50
+}
+do_execsql_test joinF-18 {
+  SELECT *
+  FROM t1 INNER JOIN t2 ON true
+  RIGHT JOIN t3 ON t2.y IS NOT NULL
+  RIGHT JOIN t4 ON true
+  WHERE (t3.z!=400 AND t3.z!=500 AND t3.z!=600)
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+  - - 20 50
+  - - 30 50
+}
+do_execsql_test joinF-19 {
+  SELECT *
+  FROM t1 LEFT JOIN t2 ON true
+  INNER JOIN t3 ON t2.y IS NOT NULL
+  INNER JOIN t4 ON true
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+}
+do_execsql_test joinF-20 {
+  SELECT *
+  FROM t1 LEFT JOIN t2 ON true
+  INNER JOIN t3 ON t2.y IS NOT NULL
+  INNER JOIN t4 ON true
+  WHERE (t3.z!=400 AND t3.z!=500 AND t3.z!=600)
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+}
+do_execsql_test joinF-21 {
+  SELECT *
+  FROM t1 LEFT JOIN t2 ON true
+  INNER JOIN t3 ON t2.y IS NOT NULL
+  LEFT JOIN t4 ON true
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+}
+do_execsql_test joinF-22 {
+  SELECT *
+  FROM t1 LEFT JOIN t2 ON true
+  INNER JOIN t3 ON t2.y IS NOT NULL
+  LEFT JOIN t4 ON true
+  WHERE (t3.z!=400 AND t3.z!=500 AND t3.z!=600)
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+}
+do_execsql_test joinF-23 {
+  SELECT *
+  FROM t1 LEFT JOIN t2 ON true
+  INNER JOIN t3 ON t2.y IS NOT NULL
+  RIGHT JOIN t4 ON true
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+  - - - 50
+}
+do_execsql_test joinF-24 {
+  SELECT *
+  FROM t1 LEFT JOIN t2 ON true
+  INNER JOIN t3 ON t2.y IS NOT NULL
+  RIGHT JOIN t4 ON true
+  WHERE (t3.z!=400 AND t3.z!=500 AND t3.z!=600)
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+}
+do_execsql_test joinF-25 {
+  SELECT *
+  FROM t1 LEFT JOIN t2 ON true
+  LEFT JOIN t3 ON t2.y IS NOT NULL
+  INNER JOIN t4 ON true
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+  10 - - 50
+}
+do_execsql_test joinF-26 {
+  SELECT *
+  FROM t1 LEFT JOIN t2 ON true
+  LEFT JOIN t3 ON t2.y IS NOT NULL
+  INNER JOIN t4 ON true
+  WHERE (t3.z!=400 AND t3.z!=500 AND t3.z!=600)
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+}
+do_execsql_test joinF-27 {
+  SELECT *
+  FROM t1 LEFT JOIN t2 ON true
+  LEFT JOIN t3 ON t2.y IS NOT NULL
+  LEFT JOIN t4 ON true
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+  10 - - 50
+}
+do_execsql_test joinF-28 {
+  SELECT *
+  FROM t1 LEFT JOIN t2 ON true
+  LEFT JOIN t3 ON t2.y IS NOT NULL
+  LEFT JOIN t4 ON true
+  WHERE (t3.z!=400 AND t3.z!=500 AND t3.z!=600)
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+}
+do_execsql_test joinF-29 {
+  SELECT *
+  FROM t1 LEFT JOIN t2 ON true
+  LEFT JOIN t3 ON t2.y IS NOT NULL
+  RIGHT JOIN t4 ON true
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+  10 - - 50
+}
+do_execsql_test joinF-30 {
+  SELECT *
+  FROM t1 LEFT JOIN t2 ON true
+  LEFT JOIN t3 ON t2.y IS NOT NULL
+  RIGHT JOIN t4 ON true
+  WHERE (t3.z!=400 AND t3.z!=500 AND t3.z!=600)
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+}
+do_execsql_test joinF-31 {
+  SELECT *
+  FROM t1 LEFT JOIN t2 ON true
+  RIGHT JOIN t3 ON t2.y IS NOT NULL
+  INNER JOIN t4 ON true
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+  - - 20 50
+  - - 30 50
+}
+do_execsql_test joinF-32 {
+  SELECT *
+  FROM t1 LEFT JOIN t2 ON true
+  RIGHT JOIN t3 ON t2.y IS NOT NULL
+  INNER JOIN t4 ON true
+  WHERE (t3.z!=400 AND t3.z!=500 AND t3.z!=600)
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+  - - 20 50
+  - - 30 50
+}
+do_execsql_test joinF-33 {
+  SELECT *
+  FROM t1 LEFT JOIN t2 ON true
+  RIGHT JOIN t3 ON t2.y IS NOT NULL
+  LEFT JOIN t4 ON true
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+  - - 20 50
+  - - 30 50
+}
+do_execsql_test joinF-34 {
+  SELECT *
+  FROM t1 LEFT JOIN t2 ON true
+  RIGHT JOIN t3 ON t2.y IS NOT NULL
+  LEFT JOIN t4 ON true
+  WHERE (t3.z!=400 AND t3.z!=500 AND t3.z!=600)
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+  - - 20 50
+  - - 30 50
+}
+do_execsql_test joinF-35 {
+  SELECT *
+  FROM t1 LEFT JOIN t2 ON true
+  RIGHT JOIN t3 ON t2.y IS NOT NULL
+  RIGHT JOIN t4 ON true
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+  - - 20 50
+  - - 30 50
+}
+do_execsql_test joinF-36 {
+  SELECT *
+  FROM t1 LEFT JOIN t2 ON true
+  RIGHT JOIN t3 ON t2.y IS NOT NULL
+  RIGHT JOIN t4 ON true
+  WHERE (t3.z!=400 AND t3.z!=500 AND t3.z!=600)
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+  - - 20 50
+  - - 30 50
+}
+do_execsql_test joinF-37 {
+  SELECT *
+  FROM t1 RIGHT JOIN t2 ON true
+  INNER JOIN t3 ON t2.y IS NOT NULL
+  INNER JOIN t4 ON true
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+}
+do_execsql_test joinF-38 {
+  SELECT *
+  FROM t1 RIGHT JOIN t2 ON true
+  INNER JOIN t3 ON t2.y IS NOT NULL
+  INNER JOIN t4 ON true
+  WHERE (t3.z!=400 AND t3.z!=500 AND t3.z!=600)
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+}
+do_execsql_test joinF-39 {
+  SELECT *
+  FROM t1 RIGHT JOIN t2 ON true
+  INNER JOIN t3 ON t2.y IS NOT NULL
+  LEFT JOIN t4 ON true
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+}
+do_execsql_test joinF-40 {
+  SELECT *
+  FROM t1 RIGHT JOIN t2 ON true
+  INNER JOIN t3 ON t2.y IS NOT NULL
+  LEFT JOIN t4 ON true
+  WHERE (t3.z!=400 AND t3.z!=500 AND t3.z!=600)
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+}
+do_execsql_test joinF-41 {
+  SELECT *
+  FROM t1 RIGHT JOIN t2 ON true
+  INNER JOIN t3 ON t2.y IS NOT NULL
+  RIGHT JOIN t4 ON true
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+  - - - 50
+}
+do_execsql_test joinF-42 {
+  SELECT *
+  FROM t1 RIGHT JOIN t2 ON true
+  INNER JOIN t3 ON t2.y IS NOT NULL
+  RIGHT JOIN t4 ON true
+  WHERE (t3.z!=400 AND t3.z!=500 AND t3.z!=600)
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+}
+do_execsql_test joinF-43 {
+  SELECT *
+  FROM t1 RIGHT JOIN t2 ON true
+  LEFT JOIN t3 ON t2.y IS NOT NULL
+  INNER JOIN t4 ON true
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+}
+do_execsql_test joinF-44 {
+  SELECT *
+  FROM t1 RIGHT JOIN t2 ON true
+  LEFT JOIN t3 ON t2.y IS NOT NULL
+  INNER JOIN t4 ON true
+  WHERE (t3.z!=400 AND t3.z!=500 AND t3.z!=600)
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+}
+do_execsql_test joinF-45 {
+  SELECT *
+  FROM t1 RIGHT JOIN t2 ON true
+  LEFT JOIN t3 ON t2.y IS NOT NULL
+  LEFT JOIN t4 ON true
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+}
+do_execsql_test joinF-46 {
+  SELECT *
+  FROM t1 RIGHT JOIN t2 ON true
+  LEFT JOIN t3 ON t2.y IS NOT NULL
+  LEFT JOIN t4 ON true
+  WHERE (t3.z!=400 AND t3.z!=500 AND t3.z!=600)
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+}
+do_execsql_test joinF-47 {
+  SELECT *
+  FROM t1 RIGHT JOIN t2 ON true
+  LEFT JOIN t3 ON t2.y IS NOT NULL
+  RIGHT JOIN t4 ON true
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+  - - - 50
+}
+do_execsql_test joinF-48 {
+  SELECT *
+  FROM t1 RIGHT JOIN t2 ON true
+  LEFT JOIN t3 ON t2.y IS NOT NULL
+  RIGHT JOIN t4 ON true
+  WHERE (t3.z!=400 AND t3.z!=500 AND t3.z!=600)
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+}
+do_execsql_test joinF-49 {
+  SELECT *
+  FROM t1 RIGHT JOIN t2 ON true
+  RIGHT JOIN t3 ON t2.y IS NOT NULL
+  INNER JOIN t4 ON true
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+  - - 20 50
+  - - 30 50
+}
+do_execsql_test joinF-50 {
+  SELECT *
+  FROM t1 RIGHT JOIN t2 ON true
+  RIGHT JOIN t3 ON t2.y IS NOT NULL
+  INNER JOIN t4 ON true
+  WHERE (t3.z!=400 AND t3.z!=500 AND t3.z!=600)
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+  - - 20 50
+  - - 30 50
+}
+do_execsql_test joinF-51 {
+  SELECT *
+  FROM t1 RIGHT JOIN t2 ON true
+  RIGHT JOIN t3 ON t2.y IS NOT NULL
+  LEFT JOIN t4 ON true
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+  - - 20 50
+  - - 30 50
+}
+do_execsql_test joinF-52 {
+  SELECT *
+  FROM t1 RIGHT JOIN t2 ON true
+  RIGHT JOIN t3 ON t2.y IS NOT NULL
+  LEFT JOIN t4 ON true
+  WHERE (t3.z!=400 AND t3.z!=500 AND t3.z!=600)
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+  - - 20 50
+  - - 30 50
+}
+do_execsql_test joinF-53 {
+  SELECT *
+  FROM t1 RIGHT JOIN t2 ON true
+  RIGHT JOIN t3 ON t2.y IS NOT NULL
+  RIGHT JOIN t4 ON true
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+  - - 20 50
+  - - 30 50
+}
+do_execsql_test joinF-54 {
+  SELECT *
+  FROM t1 RIGHT JOIN t2 ON true
+  RIGHT JOIN t3 ON t2.y IS NOT NULL
+  RIGHT JOIN t4 ON true
+  WHERE (t3.z!=400 AND t3.z!=500 AND t3.z!=600)
+  ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);
+} {
+  - - 20 50
+  - - 30 50
+}
+finish_test
+
+############################################################################
+# This is the TCL script used to generate the psql script that generated
+# the data above.
+#
+# puts "
+# \\pset border off
+# \\pset tuples_only on
+# \\pset null -
+# 
+# DROP TABLE IF EXISTS t1;
+# DROP TABLE IF EXISTS t2;
+# DROP TABLE IF EXISTS t3;
+# DROP TABLE IF EXISTS t4;
+# CREATE TABLE t1(x INT);
+# CREATE TABLE t2(y INT);
+# CREATE TABLE t3(z INT);
+# CREATE TABLE t4(w INT);
+# INSERT INTO t1 VALUES(10);
+# INSERT INTO t3 VALUES(20),(30);
+# INSERT INTO t4 VALUES(50);
+# "
+# 
+# proc echo {prefix txt} {
+#   regsub -all {\n} $txt \n$prefix txt
+#   puts "$prefix$txt"
+# }
+# 
+# set n 0
+# foreach j1 {INNER LEFT RIGHT} {
+#   foreach j2 {INNER LEFT RIGHT} {
+#     foreach j3 {INNER LEFT RIGHT} {
+# 
+# incr n
+# set q1 ""
+# append q1 "SELECT *\n"
+# append q1 "  FROM t1 $j1 JOIN t2 ON true\n"
+# append q1 "          $j2 JOIN t3 ON t2.y IS NOT NULL\n"
+# append q1 "          $j3 JOIN t4 ON true\n"
+# append q1 " ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);"
+# 
+# echo "\\qecho " "do_execsql_test joinF-$n \{"
+# echo "\\qecho X  " $q1
+# echo "\\qecho " "\} \{"
+# puts $q1
+# echo "\\qecho " "\}"
+# 
+# incr n
+# set q1 ""
+# append q1 "SELECT *\n"
+# append q1 "  FROM t1 $j1 JOIN t2 ON true\n"
+# append q1 "          $j2 JOIN t3 ON t2.y IS NOT NULL\n"
+# append q1 "          $j3 JOIN t4 ON true\n"
+# append q1 " WHERE (t3.z!=400 AND t3.z!=500 AND t3.z!=600)\n"
+# append q1 " ORDER BY coalesce(t1.x,t2.y,t3.z,t4.w,0);"
+# 
+# echo "\\qecho " "do_execsql_test joinF-$n \{"
+# echo "\\qecho X  " $q1
+# echo "\\qecho " "\} \{"
+# puts $q1
+# echo "\\qecho " "\}"
+# 
+#     }
+#   }
+# }
+#
diff --git a/test/joinH.test b/test/joinH.test
new file mode 100644
index 0000000000000000000000000000000000000000..908b93dee56ca1eb565655584d74e9c225023ff5
--- /dev/null
+++ b/test/joinH.test
@@ -0,0 +1,344 @@
+# 2022 May 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix joinH
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a INT);
+  CREATE TABLE t2(b INT);
+  INSERT INTO t2(b) VALUES(NULL);
+}
+
+db nullvalue NULL
+
+do_execsql_test 1.1 {
+  SELECT DISTINCT a FROM t1 FULL JOIN t2 ON true WHERE (b ISNULL);
+} {NULL}
+do_execsql_test 1.2 {
+  SELECT a FROM t1 FULL JOIN t2 ON true;
+} {NULL}
+do_execsql_test 1.3 {
+  SELECT a FROM t1 FULL JOIN t2 ON true WHERE (b ISNULL);
+} {NULL}
+do_execsql_test 1.4 {
+  SELECT DISTINCT a FROM t1 FULL JOIN t2 ON true;
+} {NULL}
+
+#-----------------------------------------------------------
+
+reset_db
+do_execsql_test 2.0 {
+  CREATE TABLE r3(x);
+  CREATE TABLE r4(y INTEGER PRIMARY KEY);
+  INSERT INTO r4 VALUES(55);
+}
+
+do_execsql_test 2.1 {
+  SELECT 'value!' FROM r3 FULL JOIN r4 ON (y=x);
+} {value!}
+
+do_execsql_test 2.2 {
+  SELECT 'value!' FROM r3 FULL JOIN r4 ON (y=x) WHERE +y=55;
+} {value!}
+
+#-----------------------------------------------------------
+reset_db
+do_execsql_test 3.1 {
+  CREATE TABLE t0 (c0);
+  CREATE TABLE t1 (c0);
+  CREATE TABLE t2 (c0 , c1 , c2 , UNIQUE (c0), UNIQUE (c2 DESC));
+  INSERT INTO t2 VALUES ('x', 'y', 'z');
+  ANALYZE;
+  CREATE VIEW v0(c0) AS SELECT FALSE;
+}
+
+do_catchsql_test 3.2 {
+  SELECT * FROM t0 LEFT OUTER JOIN t1 ON v0.c0 INNER JOIN v0 INNER JOIN t2 ON (t2.c2 NOT NULL); 
+} {1 {ON clause references tables to its right}}
+
+#-------------------------------------------------------------
+
+reset_db
+do_execsql_test 4.1 {
+  CREATE TABLE t1(a,b,c,d,e,f,g,h,PRIMARY KEY(a,b,c)) WITHOUT ROWID;
+  CREATE TABLE t2(i, j);
+  INSERT INTO t2 VALUES(10, 20);
+}
+
+do_execsql_test 4.2 {
+  SELECT (d IS NULL) FROM t1 RIGHT JOIN t2 ON (j=33);
+} {1}
+
+do_execsql_test 4.3 {
+  CREATE INDEX i1 ON t1( (d IS NULL), d );
+}
+
+do_execsql_test 4.4 {
+  SELECT (d IS NULL) FROM t1 RIGHT JOIN t2 ON (j=33);
+} {1}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 5.0 {
+  CREATE TABLE t0(w);
+  CREATE TABLE t1(x);
+  CREATE TABLE t2(y);
+  CREATE TABLE t3(z);
+  INSERT INTO t3 VALUES('t3val');
+}
+
+do_execsql_test 5.1 {
+  SELECT * FROM t1 INNER JOIN t2 ON (0) RIGHT OUTER JOIN t3;
+} {{} {} t3val}
+
+do_execsql_test 5.2 {
+  SELECT * FROM t1 INNER JOIN t2 ON (0) FULL OUTER JOIN t3;
+} {{} {} t3val}
+
+do_execsql_test 5.3 {
+  SELECT * FROM t3 LEFT JOIN t2 ON (0);
+} {t3val {}}
+
+do_execsql_test 5.4 {
+  SELECT * FROM t0 RIGHT JOIN t1 INNER JOIN t2 ON (0) RIGHT JOIN t3
+} {{} {} {} t3val}
+
+do_execsql_test 5.5 {
+  SELECT * FROM t0 RIGHT JOIN t1 INNER JOIN t2 ON (0)
+} {}
+
+
+reset_db
+db null NULL
+do_execsql_test 6.0 {
+  CREATE TABLE t1(a INT);
+  CREATE TABLE t2(b INT);
+  INSERT INTO t1 VALUES(3);
+  SELECT CASE WHEN t2.b THEN 0 ELSE 1 END FROM t1 LEFT JOIN t2 ON true;
+} {1}
+do_execsql_test 6.1 {
+  SELECT * FROM t1 LEFT JOIN t2 ON true WHERE CASE WHEN t2.b THEN 0 ELSE 1 END;
+} {3 NULL}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 7.0 {
+  CREATE TABLE t1(a, b);
+  CREATE TABLE t2(c);
+  CREATE TABLE t3(d);
+
+  INSERT INTO t1 VALUES ('a', 'a');
+  INSERT INTO t2 VALUES ('ddd');
+  INSERT INTO t3 VALUES(1234);
+}
+
+do_execsql_test 7.1 {
+  SELECT t2.rowid FROM t1 JOIN (t2 JOIN t3);
+} {1}
+
+do_execsql_test 7.1 {
+  UPDATE t1 SET b = t2.rowid FROM t2, t3;
+}
+
+do_execsql_test 7.2 { 
+  SELECT * FROM t1
+} {a 1}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 8.0 {
+  CREATE TABLE x1(a INTEGER PRIMARY KEY, b);
+  CREATE TABLE x2(c, d);
+  CREATE TABLE x3(rowid, _rowid_);
+
+  CREATE TABLE x4(rowid, _rowid_, oid);
+
+  INSERT INTO x1 VALUES(1000, 'thousand');
+  INSERT INTO x2 VALUES('c', 'd');
+  INSERT INTO x3(oid, rowid, _rowid_) VALUES(43, 'hello', 'world');
+  INSERT INTO x4(oid, rowid, _rowid_) VALUES('forty three', 'hello', 'world');
+}
+
+do_execsql_test 8.1 {
+  SELECT x3.oid FROM x1 JOIN (x2 JOIN x3 ON c='c')
+} 43
+
+breakpoint
+do_execsql_test 8.2 {
+  SELECT x3.rowid FROM x1 JOIN (x2 JOIN x3 ON c='c')
+} {hello}
+
+do_execsql_test 8.3 {
+  SELECT x4.oid FROM x1 JOIN (x2 JOIN x4 ON c='c')
+} {{forty three}}
+
+
+#---------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 9.0 {
+  CREATE TABLE x1(a);
+  CREATE TABLE x2(b);
+  CREATE TABLE x3(c);
+
+  CREATE TABLE wo1(a PRIMARY KEY, b) WITHOUT ROWID;
+  CREATE TABLE wo2(a PRIMARY KEY, rowid) WITHOUT ROWID;
+  CREATE TABLE wo3(a PRIMARY KEY, b) WITHOUT ROWID;
+}
+
+do_catchsql_test 9.1 {
+  SELECT rowid FROM wo1, x1, x2;
+} {1 {ambiguous column name: rowid}}
+do_catchsql_test 9.2 {
+  SELECT rowid FROM wo1, (x1, x2);
+} {1 {ambiguous column name: rowid}}
+do_catchsql_test 9.3 {
+  SELECT rowid FROM wo1 JOIN (x1 JOIN x2);
+} {1 {ambiguous column name: rowid}}
+do_catchsql_test 9.4 {
+  SELECT a FROM wo1, x1, x2;
+} {1 {ambiguous column name: a}}
+
+
+# It is not possible to use "rowid" in a USING clause.
+#
+do_catchsql_test 9.5 {
+  SELECT * FROM x1 JOIN x2 USING (rowid);
+} {1 {cannot join using column rowid - column not present in both tables}}
+do_catchsql_test 9.6 {
+  SELECT * FROM wo2 JOIN x2 USING (rowid);
+} {1 {cannot join using column rowid - column not present in both tables}}
+
+# "rowid" columns are not matched by NATURAL JOIN. If they were, then
+# the SELECT below would return zero rows.
+do_execsql_test 9.7 {
+  INSERT INTO x1(rowid, a) VALUES(101, 'A');
+  INSERT INTO x2(rowid, b) VALUES(55, 'B');
+  SELECT * FROM x1 NATURAL JOIN x2;
+} {A B}
+
+do_execsql_test 9.8 {
+  INSERT INTO wo1(a, b) VALUES('mya', 'myb');
+  INSERT INTO wo2(a, rowid) VALUES('mypk', 'myrowid');
+  INSERT INTO wo3(a, b) VALUES('MYA', 'MYB');
+  INSERT INTO x3(rowid, c) VALUES(99, 'x3B');
+}
+
+do_catchsql_test 9.8 {
+  SELECT rowid FROM x1 JOIN (x2 JOIN wo2);
+} {0 myrowid}
+do_catchsql_test 9.9 {
+  SELECT _rowid_ FROM wo1 JOIN (wo3 JOIN x3)
+} {0 99}
+do_catchsql_test 9.10 {
+  SELECT oid FROM wo1 JOIN (wo3 JOIN x3)
+} {0 99}
+do_catchsql_test 9.11 {
+  SELECT oid FROM wo2 JOIN (wo3 JOIN x3)
+} {0 99}
+
+reset_db
+do_execsql_test 10.0 {
+  CREATE TABLE rt0 (c0 INTEGER, c1 INTEGER, c2 INTEGER, c3 INTEGER, c4 INTEGER);
+  CREATE TABLE rt3 (c3 INTEGER);
+
+  INSERT INTO rt0(c3, c1) VALUES (x'', '1');
+  INSERT INTO rt0(c3, c1) VALUES ('-1', -1e500);
+  INSERT INTO rt0(c3, c1) VALUES (1, x'');
+
+  CREATE VIEW v6(c0, c1, c2) AS SELECT 0, 0, 0;
+}
+
+do_execsql_test 10.1 {
+  SELECT COUNT(*) FROM rt0 LEFT JOIN rt3 JOIN v6 ON ((CASE v6.c0 WHEN rt0.c4 THEN rt3.c3 END) NOT BETWEEN (rt0.c4) AND (NULL)) WHERE (rt0.c1); -- 2
+} {0}
+
+do_execsql_test 10.2 {
+  SELECT COUNT(*) FROM rt0 LEFT JOIN rt3 RIGHT OUTER JOIN v6 ON ((CASE v6.c0 WHEN rt0.c4 THEN rt3.c3 END) NOT BETWEEN (rt0.c4) AND (NULL)) WHERE (rt0.c1); -- 2
+} {0}
+
+#-------------------------------------------------------------------------
+
+do_execsql_test 11.1 {
+  CREATE TABLE t1(a, b);
+  CREATE TABLE t2(c, d);
+  CREATE TABLE t3(e, f);
+
+  INSERT INTO t1 VALUES(1, 1);
+  INSERT INTO t2 VALUES(2, 2);
+  INSERT INTO t3 VALUES(3, 3);
+}
+
+do_execsql_test 11.2 {
+  SELECT * FROM t1 LEFT JOIN t2 RIGHT JOIN t3 ON (t2.c=10)
+} {{} {} {} {} 3 3}
+
+do_execsql_test 11.3 {
+  SELECT * FROM t1 LEFT JOIN t2 RIGHT JOIN t3 ON (t2.c=10) WHERE t1.a=1
+} {}
+
+#-------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 12.1 {
+  CREATE TABLE t1(a1 INT, b1 TEXT);
+  INSERT INTO t1 VALUES(88,'');
+  CREATE TABLE t2(c2 INT, d2 TEXT);
+  INSERT INTO t2 VALUES(88,'');
+  CREATE TABLE t3(e3 TEXT PRIMARY KEY);
+  INSERT INTO t3 VALUES('');
+}
+
+do_execsql_test 12.2 {
+  SELECT * FROM t1 LEFT JOIN t2 ON true RIGHT JOIN t3 ON d2=e3 WHERE c2 BETWEEN NULL AND a1;
+}
+do_execsql_test 12.3 {
+  SELECT * FROM t1 LEFT JOIN t2 ON true RIGHT JOIN t3 ON d2=e3 WHERE c2 BETWEEN NULL AND a1;
+}
+
+#-------------------------------------------------------------------------
+# 2024-04-05 dbsqlfuzz b9e65e2f110df998f1306571fae7af6c01e4d92b
+reset_db
+do_execsql_test 13.1 {
+  CREATE TABLE t1(a INT AS (b), b INT);
+  INSERT INTO t1(b) VALUES(123);
+  CREATE TABLE t2(a INT, c INT);
+  SELECT a FROM t2 NATURAL RIGHT JOIN t1;
+} {123}
+do_execsql_test 13.2 {
+  CREATE INDEX t1a ON t1(a);
+  SELECT a FROM t2 NATURAL RIGHT JOIN t1;
+} {123}
+# Further tests of the same logic (indexes on expressions
+# used by RIGHT JOIN) from check-in ffe23af73fcb324d and
+# forum post https://sqlite.org/forum/forumpost/9b491e1debf0b67a.
+db null NULL
+do_execsql_test 13.3 {
+  CREATE TABLE t3(a INT, b INT);
+  CREATE UNIQUE INDEX t3x ON t3(a, a+b);
+  INSERT INTO t3(a,b) VALUES(1,2),(4,8),(16,32),(4,80),(1,-300);
+  CREATE TABLE t4(x INT, y INT);
+  INSERT INTO t4(x,y) SELECT a, b FROM t3;
+  INSERT INTO t4(x,y) VALUES(99,99);
+  SELECT a1.a, sum( a1.a+a1.b ) FROM t3 AS a1 RIGHT JOIN t4 ON a=x
+   GROUP BY a1.a ORDER BY 1;
+} {NULL NULL 1 -592 4 192 16 48}
+do_execsql_test 13.4 {
+  SELECT sum( a1.a+a1.b ) FROM t3 AS a1 RIGHT JOIN t3 ON true
+   GROUP BY a1.a ORDER BY 1;
+} {-1480 240 480}
+
+finish_test
diff --git a/test/journal1.test b/test/journal1.test
new file mode 100644
index 0000000000000000000000000000000000000000..bcbafe30f68748cdd174524b4bb513d1635fed60
--- /dev/null
+++ b/test/journal1.test
@@ -0,0 +1,72 @@
+# 2005 March 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to make sure that leftover journals from
+# prior databases do not try to rollback into new databases.
+#
+# $Id: journal1.test,v 1.2 2005/03/20 22:54:56 drh Exp $
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# These tests will not work on windows because windows uses
+# manditory file locking which breaks the copy_file command.
+#
+# Or with atomic_batch_write systems, as journal files are
+# not created.
+#
+if {$tcl_platform(platform)=="windows"
+ || [atomic_batch_write test.db]
+} {
+  finish_test
+  return
+}
+
+# Create a smaple database
+#
+do_test journal1-1.1 {
+  execsql {
+    CREATE TABLE t1(a,b);
+    INSERT INTO t1 VALUES(1,randstr(10,400));
+    INSERT INTO t1 VALUES(2,randstr(10,400));
+    INSERT INTO t1 SELECT a+2, a||b FROM t1;
+    INSERT INTO t1 SELECT a+4, a||b FROM t1;
+    SELECT count(*) FROM t1;
+  }
+} 8
+
+# Make changes to the database and save the journal file.
+# Then delete the database.  Replace the journal file
+# and try to create a new database with the same name.  The
+# old journal should not attempt to rollback into the new
+# database.
+#
+do_test journal1-1.2 {
+  execsql {
+    BEGIN;
+    DELETE FROM t1;
+  }
+  forcecopy test.db-journal test.db-journal-bu
+  execsql {
+    ROLLBACK;
+  }
+  db close
+  delete_file test.db
+  copy_file test.db-journal-bu test.db-journal
+  sqlite3 db test.db
+  catchsql {
+    SELECT * FROM sqlite_master
+  }
+} {0 {}}
+
+finish_test
diff --git a/test/journal2.test b/test/journal2.test
new file mode 100644
index 0000000000000000000000000000000000000000..7cbe0ef2c5bf68781bdd6fb60f0dd295eb1710ef
--- /dev/null
+++ b/test/journal2.test
@@ -0,0 +1,233 @@
+# 2010 June 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. Specifically,
+# it tests SQLite when using a VFS that claims the SAFE_DELETE property.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+source $testdir/malloc_common.tcl
+db close
+
+if {[permutation] == "inmemory_journal"} {
+  finish_test
+  return
+}
+
+set a_string_counter 1
+proc a_string {n} {
+  global a_string_counter
+  incr a_string_counter
+  string range [string repeat "${a_string_counter}." $n] 1 $n
+}
+
+# Create a [testvfs] and install it as the default VFS. Set the device
+# characteristics flags to "SAFE_DELETE".
+#
+testvfs tvfs -default 1
+tvfs devchar {undeletable_when_open powersafe_overwrite}
+
+# Set up a hook so that each time a journal file is opened, closed or
+# deleted, the method name ("xOpen", "xClose" or "xDelete") and the final
+# segment of the journal file-name (i.e. "test.db-journal") are appended to
+# global list variable $::oplog.
+#
+tvfs filter {xOpen xClose xDelete}
+tvfs script journal_op_catcher
+proc journal_op_catcher {method filename args} {
+
+  # If global variable ::tvfs_error_on_write is defined, then return an
+  # IO error to every attempt to modify the file-system. Otherwise, return
+  # SQLITE_OK.
+  #
+  if {[info exists ::tvfs_error_on_write]} {
+    if {[lsearch {xDelete xWrite xTruncate} $method]>=0} {
+      return SQLITE_IOERR 
+    }
+  }
+
+  # The rest of this command only deals with xOpen(), xClose() and xDelete()
+  # operations on journal files. If this invocation does not represent such
+  # an operation, return with no further ado.
+  #
+  set f [file tail $filename]
+  if {[string match *journal $f]==0} return
+  if {[lsearch {xOpen xDelete xClose} $method]<0} return
+
+  # Append a record of this operation to global list variable $::oplog.
+  #
+  lappend ::oplog $method $f
+
+  # If this is an attempt to delete a journal file for which there exists
+  # one ore more open handles, return an error. The code in test_vfs.c
+  # will not invoke the xDelete method of the "real" VFS in this case.
+  #
+  if {[info exists ::open_journals($f)]==0} { set ::open_journals($f) 0 }
+  switch -- $method {
+    xOpen   { incr ::open_journals($f) +1 }
+    xClose  { incr ::open_journals($f) -1 }
+    xDelete { if {$::open_journals($f)>0} { return SQLITE_IOERR } }
+  }
+
+  return ""
+}
+
+
+do_test journal2-1.1 {
+  set ::oplog [list]
+  sqlite3 db test.db
+  execsql { CREATE TABLE t1(a, b) }
+  set ::oplog
+} {xOpen test.db-journal xClose test.db-journal xDelete test.db-journal}
+do_test journal2-1.2 {
+  set ::oplog [list]
+  execsql { 
+    PRAGMA journal_mode = truncate;
+    INSERT INTO t1 VALUES(1, 2);
+  }
+  set ::oplog
+} {xOpen test.db-journal}
+do_test journal2-1.3 {
+  set ::oplog [list]
+  execsql { INSERT INTO t1 VALUES(3, 4) }
+  set ::oplog
+} {}
+do_test journal2-1.4 { execsql { SELECT * FROM t1 } } {1 2 3 4}
+
+# Add a second connection. This connection attempts to commit data in
+# journal_mode=DELETE mode. When it tries to delete the journal file,
+# the VFS layer returns an IO error.
+#
+do_test journal2-1.5 {
+  set ::oplog [list]
+  sqlite3 db2 test.db
+  execsql  { PRAGMA journal_mode = delete } db2
+  catchsql { INSERT INTO t1 VALUES(5, 6)  } db2
+} {1 {disk I/O error}}
+do_test journal2-1.6 { file exists test.db-journal } 1
+do_test journal2-1.7 { execsql { SELECT * FROM t1 } } {1 2 3 4}
+do_test journal2-1.8 {
+  execsql { PRAGMA journal_mode = truncate } db2
+  execsql { INSERT INTO t1 VALUES(5, 6)  } db2
+} {}
+do_test journal2-1.9 { execsql { SELECT * FROM t1 } } {1 2 3 4 5 6}
+
+# Grow the database until it is reasonably large.
+#
+do_test journal2-1.10 {
+  db2 close
+  db func a_string a_string
+  execsql {
+    CREATE TABLE t2(a UNIQUE, b UNIQUE);
+    INSERT INTO t2 VALUES(a_string(200), a_string(300));
+    INSERT INTO t2 SELECT a_string(200), a_string(300) FROM t2;  --  2
+    INSERT INTO t2 SELECT a_string(200), a_string(300) FROM t2;  --  4
+    INSERT INTO t2 SELECT a_string(200), a_string(300) FROM t2;  --  8
+    INSERT INTO t2 SELECT a_string(200), a_string(300) FROM t2;  -- 16
+    INSERT INTO t2 SELECT a_string(200), a_string(300) FROM t2;  -- 32
+    INSERT INTO t2 SELECT a_string(200), a_string(300) FROM t2;  -- 64
+  }
+  file size test.db-journal
+} {0}
+do_test journal2-1.11 {
+  set sz [expr [file size test.db] / 1024]
+  expr {$sz>120 && $sz<200}
+} 1
+
+# Using new connection [db2] (with journal_mode=DELETE), write a lot of
+# data to the database. So that many pages within the database file are
+# modified before the transaction is committed.
+#
+# Then, enable simulated IO errors in all calls to xDelete, xWrite
+# and xTruncate before committing the transaction and closing the 
+# database file. From the point of view of other file-system users, it
+# appears as if the process hosting [db2] unexpectedly exited.
+# 
+do_test journal2-1.12 {
+  sqlite3 db2 test.db
+  execsql {
+    PRAGMA cache_size = 10;
+    BEGIN;
+      INSERT INTO t2 SELECT randomblob(200), randomblob(300) FROM t2;  -- 128
+  } db2
+} {}
+do_test journal2-1.13 {
+  tvfs filter {xOpen xClose xDelete xWrite xTruncate}
+  set ::tvfs_error_on_write 1
+  catchsql { COMMIT } db2
+} {1 {disk I/O error}}
+db2 close
+unset ::tvfs_error_on_write
+forcecopy test.db testX.db
+
+do_test journal2-1.14 { file exists test.db-journal } 1
+do_test journal2-1.15 {
+  execsql {
+    SELECT count(*) FROM t2;
+    PRAGMA integrity_check;
+  }
+} {64 ok}
+
+# This block checks that in the test case above, connection [db2] really
+# did begin writing to the database file before it hit IO errors. If
+# this is true, then the copy of the database file made before [db]
+# rolled back the hot journal should fail the integrity-check.
+#
+do_test journal2-1.16 {
+  set sz [expr [file size testX.db] / 1024]
+  expr {$sz>240 && $sz<400}
+} 1
+do_test journal2-1.17 {
+  expr {[catchsql { PRAGMA integrity_check } db] == "0 ok"}
+} {1}
+do_test journal2-1.20 {
+  sqlite3 db2 testX.db
+  expr {[catchsql { PRAGMA integrity_check } db2] == "0 ok"}
+} {0}
+do_test journal2-1.21 {
+  db2 close
+} {}
+db close
+
+#-------------------------------------------------------------------------
+# Test that it is possible to switch from journal_mode=truncate to
+# journal_mode=WAL on a SAFE_DELETE file-system. SQLite should close and
+# delete the journal file when committing the transaction that switches
+# the system to WAL mode.
+#
+if {[wal_is_capable]} {
+  do_test journal2-2.1 {
+    faultsim_delete_and_reopen
+    set ::oplog [list]
+    execsql { PRAGMA journal_mode = persist }
+    set ::oplog
+  } {}
+  do_test journal2-2.2 {
+    execsql { 
+      CREATE TABLE t1(x);
+      INSERT INTO t1 VALUES(3.14159);
+    }
+    set ::oplog
+  } {xOpen test.db-journal}
+  do_test journal2-2.3 {
+    expr {[file size test.db-journal] > 512}
+  } {1}
+  do_test journal2-2.4 {
+    set ::oplog [list]
+    execsql { PRAGMA journal_mode = WAL }
+    set ::oplog
+  } {xClose test.db-journal xDelete test.db-journal}
+  db close
+}
+
+tvfs delete
+finish_test
diff --git a/test/journal3.test b/test/journal3.test
new file mode 100644
index 0000000000000000000000000000000000000000..c3e3d12db6bedc5953b8e62cd29ed92b1f82f73f
--- /dev/null
+++ b/test/journal3.test
@@ -0,0 +1,69 @@
+# 2010 July 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+source $testdir/malloc_common.tcl
+
+#-------------------------------------------------------------------------
+# If a connection is required to create a journal file, it creates it with 
+# the same file-system permissions as the database file itself. Test this.
+#
+if {$::tcl_platform(platform) == "unix"
+ && [atomic_batch_write test.db]==0
+} {
+
+  # Changed on 2012-02-13:  umask is deliberately ignored for -wal, -journal,
+  # and -shm files.
+  #set umask [exec /bin/sh -c umask]
+  faultsim_delete_and_reopen
+  do_test journal3-1.1 { execsql { CREATE TABLE tx(y, z) } } {}
+
+  foreach {tn permissions} {
+   1 00644
+   2 00666
+   3 00600
+   4 00755
+  } {
+    db close
+    #set effective [format %.5o [expr $permissions & ~$umask]]
+    set res "/[regsub {^00} $permissions {0.}]/"
+    if {$tcl_version>=8.7} {
+       regsub {^00} $permissions {0o} permissions
+    }
+    set effective $permissions
+    do_test journal3-1.2.$tn.1 {
+      catch { forcedelete test.db-journal }
+      file attributes test.db -permissions $permissions
+      file attributes test.db -permissions
+    } $res
+    do_test journal3-1.2.$tn.2 { file exists test.db-journal } {0}
+    do_test journal3-1.2.$tn.3 {
+      sqlite3 db test.db
+      execsql { 
+        BEGIN;
+          INSERT INTO tx DEFAULT VALUES;
+      }
+      file exists test.db-journal
+    } {1}
+    do_test journal3-1.2.$tn.4 {
+      file attr test.db-journal -perm
+    } $res
+    do_execsql_test journal3-1.2.$tn.5 { ROLLBACK } {}
+  }
+
+
+}
+
+finish_test
diff --git a/test/jrnlmode.test b/test/jrnlmode.test
new file mode 100644
index 0000000000000000000000000000000000000000..99823a87255c85f955e1136673e046832f9ddc8f
--- /dev/null
+++ b/test/jrnlmode.test
@@ -0,0 +1,585 @@
+# 2008 April 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. The focus
+# of these tests is the journal mode pragma.
+#
+# $Id: jrnlmode.test,v 1.16 2009/06/05 17:09:12 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable {!pager_pragmas} {
+  finish_test
+  return
+}
+
+if {[info exists TEMP_STORE] && $TEMP_STORE>=2} {
+  set temp_persist memory
+  set temp_delete memory
+  set temp_truncate memory
+  set temp_off off
+} else {
+  set temp_persist persist
+  set temp_delete delete
+  set temp_truncate truncate
+  set temp_off off
+}
+
+proc temp_journal_mode {newmode} {
+  if {[info exists ::TEMP_STORE] && $::TEMP_STORE>=2} {
+    if {$newmode ne "off" && $newmode ne "memory"} {
+      execsql {PRAGMA temp.journal_mode}
+      set newmode [db one {PRAGMA temp.journal_mode}]
+    }
+  }
+  set newmode
+}
+
+#----------------------------------------------------------------------
+# Test cases jrnlmode-1.X test the PRAGMA logic.
+#
+do_test jrnlmode-1.0 {
+  execsql {
+    PRAGMA journal_mode;
+    PRAGMA main.journal_mode;
+    PRAGMA temp.journal_mode;
+  } 
+} [list delete delete [temp_journal_mode delete]]
+do_test jrnlmode-1.1 {
+  execsql {
+    PRAGMA journal_mode = persist;
+  } 
+} {persist}
+do_test jrnlmode-1.2 {
+  execsql {
+    PRAGMA journal_mode;
+    PRAGMA main.journal_mode;
+    PRAGMA temp.journal_mode;
+  } 
+} [list persist persist [temp_journal_mode persist]]
+do_test jrnlmode-1.4a {
+  # When defensive is on, unable to set journal_mode to OFF
+  sqlite3_db_config db DEFENSIVE 1
+  execsql {
+    PRAGMA journal_mode = off;
+  } 
+} {persist}
+do_test jrnlmode-1.4b {
+  # When defensive is on, unable to set journal_mode to OFF
+  sqlite3_db_config db DEFENSIVE 0
+  execsql {
+    PRAGMA journal_mode = off;
+  } 
+} {off}
+do_test jrnlmode-1.5 {
+  execsql {
+    PRAGMA journal_mode;
+    PRAGMA main.journal_mode;
+    PRAGMA temp.journal_mode;
+  } 
+} [list off off [temp_journal_mode off]]
+do_test jrnlmode-1.6 {
+  execsql {
+    PRAGMA journal_mode = delete;
+  } 
+} {delete}
+do_test jrnlmode-1.7 {
+  execsql {
+    PRAGMA journal_mode;
+    PRAGMA main.journal_mode;
+    PRAGMA Temp.journal_mode;
+  } 
+} [list delete delete [temp_journal_mode delete]]
+do_test jrnlmode-1.7.1 {
+  execsql {
+    PRAGMA journal_mode = truncate;
+  } 
+} {truncate}
+do_test jrnlmode-1.7.2 {
+  execsql {
+    PRAGMA journal_mode;
+    PRAGMA main.journal_mode;
+    PRAGMA temp.journal_mode;
+  } 
+} [list truncate truncate [temp_journal_mode truncate]]
+do_test jrnlmode-1.8 {
+  execsql {
+    PRAGMA journal_mode = off;
+    PRAGMA journal_mode = invalid;
+  } 
+} {off off}
+ifcapable attach {
+  do_test jrnlmode-1.9 {
+    execsql {
+      PRAGMA journal_mode = PERSIST;
+      ATTACH ':memory:' as aux1;
+    }
+    execsql {
+      PRAGMA main.journal_mode;
+      PRAGMA aux1.journal_mode;
+    }
+  } {persist memory}
+  do_test jrnlmode-1.10 {
+    execsql {
+      PRAGMA main.journal_mode = OFF;
+    }
+    execsql {
+      PRAGMA main.journal_mode;
+      PRAGMA temp.journal_mode;
+      PRAGMA aux1.journal_mode;
+    }
+  } [list off [temp_journal_mode persist] memory]
+  do_test jrnlmode-1.11 {
+    execsql {
+      PRAGMA journal_mode;
+    }
+  } {off}
+  do_test jrnlmode-1.12 {
+    execsql {
+      ATTACH ':memory:' as aux2;
+    }
+    execsql {
+      PRAGMA main.journal_mode;
+      PRAGMA aux1.journal_mode;
+      PRAGMA aux2.journal_mode;
+    }
+  } {off memory memory}
+  do_test jrnlmode-1.13 {
+    # The journal-mode used by in-memory databases cannot be changed.
+    execsql {
+      PRAGMA aux1.journal_mode = DELETE;
+    }
+    execsql {
+      PRAGMA main.journal_mode;
+      PRAGMA aux1.journal_mode;
+      PRAGMA aux2.journal_mode;
+    }
+  } {off memory memory}
+  do_test jrnlmode-1.14 {
+    execsql {
+      PRAGMA journal_mode = delete;
+    }
+    execsql {
+      PRAGMA main.journal_mode;
+      PRAGMA temp.journal_mode;
+      PRAGMA aux1.journal_mode;
+      PRAGMA aux2.journal_mode;
+    }
+  } [list delete [temp_journal_mode delete] memory memory]
+  do_test jrnlmode-1.15 {
+    execsql {
+      ATTACH ':memory:' as aux3;
+    }
+    execsql {
+      PRAGMA main.journal_mode;
+      PRAGMA temp.journal_mode;
+      PRAGMA aux1.journal_mode;
+      PRAGMA aux2.journal_mode;
+      PRAGMA aux3.journal_mode;
+    }
+  } [list delete [temp_journal_mode delete] memory memory memory]
+  do_test jrnlmode-1.16 {
+    execsql {
+      PRAGMA journal_mode = TRUNCATE;
+    }
+    execsql {
+      PRAGMA main.journal_mode;
+      PRAGMA temp.journal_mode;
+      PRAGMA aux1.journal_mode;
+      PRAGMA aux2.journal_mode;
+      PRAGMA aux3.journal_mode;
+    }
+  } [list truncate [temp_journal_mode truncate] memory memory memory]
+
+  do_test jrnlmode-1.99 {
+    execsql {
+      DETACH aux1;
+      DETACH aux2;
+      DETACH aux3;
+    }
+  } {}
+}
+
+ifcapable attach {
+  forcedelete test2.db
+  do_test jrnlmode-2.1 {
+    execsql {
+      ATTACH 'test2.db' AS aux;
+      PRAGMA main.journal_mode = persist;
+      PRAGMA aux.journal_mode = persist;
+      CREATE TABLE abc(a, b, c);
+      CREATE TABLE aux.def(d, e, f);
+    }
+    execsql {
+      BEGIN;
+      INSERT INTO abc VALUES(1, 2, 3);
+      INSERT INTO def VALUES(4, 5, 6);
+      COMMIT;
+    }
+    list [file exists test.db-journal] [file exists test2.db-journal]
+  } {1 1}
+
+  do_test jrnlmode-2.2 {
+    file size test.db-journal
+  } {0}
+
+  do_test jrnlmode-2.3 {
+    execsql {
+      SELECT * FROM abc;
+    }
+  } {1 2 3}
+
+  do_test jrnlmode-2.4 {
+    file size test.db-journal
+  } {0}
+
+  do_test jrnlmode-2.5 {
+    execsql {
+      SELECT * FROM def;
+    }
+  } {4 5 6}
+
+#----------------------------------------------------------------------
+# Test caes jrnlmode-3.X verify that ticket #3127 has been fixed.
+#
+  db close
+  forcedelete test2.db
+  forcedelete test.db
+  sqlite3 db test.db
+
+  do_test jrnlmode-3.1 {
+    execsql { 
+      CREATE TABLE x(n INTEGER); 
+      ATTACH 'test2.db' AS a; 
+      create table a.x ( n integer ); 
+      insert into a.x values(1); 
+      insert into a.x values (2); 
+      insert into a.x values (3); 
+      insert into a.x values (4); 
+    }
+  } {}
+  
+  do_test jrnlmode-3.2 {
+    execsql { PRAGMA journal_mode=off; }
+    execsql { 
+      BEGIN IMMEDIATE;
+      INSERT OR IGNORE INTO main.x SELECT * FROM a.x;
+      COMMIT;
+    }
+  } {}
+}
+
+ifcapable autovacuum&&pragma {
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+  do_test jrnlmode-4.1 {
+    execsql {
+      PRAGMA cache_size = 1;
+      PRAGMA auto_vacuum = 1;
+      CREATE TABLE abc(a, b, c);
+    }
+    execsql { PRAGMA page_count }
+  } {3}
+
+  do_test jrnlmode-4.2 {
+    execsql { PRAGMA journal_mode = off }
+  } {off}
+
+  do_test jrnlmode-4.3 {
+    execsql { INSERT INTO abc VALUES(1, 2, randomblob(2000)) }
+  } {}
+
+  # This will attempt to truncate the database file. Check that this
+  # is not a problem when journal_mode=off.
+  do_test jrnlmode-4.4 {
+    execsql { DELETE FROM abc }
+  } {}
+
+  integrity_check jrnlmode-4.5
+}
+
+#------------------------------------------------------------------------
+# The following test caes, jrnlmode-5.*, test the journal_size_limit
+# pragma.
+ifcapable pragma {
+if {[atomic_batch_write test.db]==0} {
+  db close
+  forcedelete test.db test2.db test3.db
+  sqlite3 db test.db
+
+  do_test jrnlmode-5.1 {
+    execsql {pragma page_size=1024}
+    execsql {pragma journal_mode=persist}
+  } {persist}
+
+  do_test jrnlmode-5.2 {
+    execsql { PRAGMA journal_size_limit }
+  } {-1}
+  do_test jrnlmode-5.3 {
+    execsql { 
+      ATTACH 'test2.db' AS aux;
+      PRAGMA aux.journal_mode=persist;
+      PRAGMA aux.journal_size_limit;
+    }
+  } {persist -1}
+  do_test jrnlmode-5.4.1 {
+    execsql { PRAGMA aux.journal_size_limit = 999999999999 }
+  } {999999999999}
+  do_test jrnlmode-5.4.2 {
+    execsql { PRAGMA aux.journal_size_limit = 10240 }
+  } {10240}
+  do_test jrnlmode-5.5 {
+    execsql { PRAGMA main.journal_size_limit = 20480 }
+  } {20480}
+  do_test jrnlmode-5.6 {
+    execsql { PRAGMA journal_size_limit }
+  } {20480}
+  do_test jrnlmode-5.7 {
+    execsql { PRAGMA aux.journal_size_limit }
+  } {10240}
+
+  do_test jrnlmode-5.8 {
+    execsql {
+      ATTACH 'test3.db' AS aux2;
+      PRAGMA aux2.journal_mode=persist;
+    }
+  } {persist}
+
+  do_test jrnlmode-5.9 {
+    execsql {
+      CREATE TABLE main.t1(a, b, c);
+      CREATE TABLE aux.t2(a, b, c);
+      CREATE TABLE aux2.t3(a, b, c);
+    }
+  } {}
+  do_test jrnlmode-5.10 {
+    list \
+      [file exists test.db-journal]  \
+      [file exists test2.db-journal] \
+      [file exists test3.db-journal]
+  } {1 1 1}
+  do_test jrnlmode-5.11 {
+    execsql {
+      BEGIN;
+      INSERT INTO t3 VALUES(randomblob(1000),randomblob(1000),randomblob(1000));
+      INSERT INTO t3 
+          SELECT randomblob(1000),randomblob(1000),randomblob(1000) FROM t3;
+      INSERT INTO t3 
+          SELECT randomblob(1000),randomblob(1000),randomblob(1000) FROM t3;
+      INSERT INTO t3 
+          SELECT randomblob(1000),randomblob(1000),randomblob(1000) FROM t3;
+      INSERT INTO t3 
+          SELECT randomblob(1000),randomblob(1000),randomblob(1000) FROM t3;
+      INSERT INTO t3 
+          SELECT randomblob(1000),randomblob(1000),randomblob(1000) FROM t3;
+      INSERT INTO t2 SELECT * FROM t3;
+      INSERT INTO t1 SELECT * FROM t2;
+      COMMIT;
+    }
+    list \
+      [file exists test.db-journal]  \
+      [file exists test2.db-journal] \
+      [file exists test3.db-journal] \
+      [file size test.db-journal]    \
+      [file size test2.db-journal]   \
+      [file size test3.db-journal]
+  } {1 1 1 0 0 0}
+
+  do_test jrnlmode-5.12 {
+    execsql {
+      BEGIN;
+      UPDATE t1 SET a = randomblob(1000);
+    }
+    expr {[file size test.db-journal]>30000}
+  } {1}
+  do_test jrnlmode-5.13 {
+    execsql COMMIT
+    file size test.db-journal
+  } {20480}
+
+  do_test jrnlmode-5.14 {
+    execsql {
+      BEGIN;
+      UPDATE t2 SET a = randomblob(1000);
+    }
+    expr {[file size test2.db-journal]>30000}
+  } {1}
+  do_test jrnlmode-5.15 {
+    execsql COMMIT
+    file size test2.db-journal
+  } {10240}
+
+  do_test jrnlmode-5.16 {
+    execsql {
+      BEGIN;
+      UPDATE t3 SET a = randomblob(1000);
+    }
+    set journalsize [file size test3.db-journal]
+    expr {$journalsize>30000}
+  } {1}
+  do_test jrnlmode-5.17 {
+    execsql COMMIT
+    set sz [file size test3.db-journal]
+    expr {$sz>=$journalsize}
+  } {1}
+
+  do_test jrnlmode-5.18 {
+    execsql {
+      PRAGMA journal_size_limit = -4;
+      BEGIN;
+      UPDATE t1 SET a = randomblob(1000);
+    }
+    set journalsize [file size test.db-journal]
+    expr {$journalsize>30000}
+  } {1}
+  do_test jrnlmode-5.19 {
+    execsql COMMIT
+    set sz [file size test.db-journal]
+    expr {$sz>=$journalsize}
+  } {1}
+
+  # Test a size-limit of 0.
+  #
+  do_test jrnlmode-5.20 {
+    execsql {
+      PRAGMA journal_size_limit = 0;
+      BEGIN;
+      UPDATE t1 SET a = randomblob(1000);
+    }
+  } {0}
+  do_test jrnlmode-5.21 {
+    expr {[file size test.db-journal] > 1024}
+  } {1}
+  do_test jrnlmode-5.22 {
+    execsql COMMIT
+    list [file exists test.db-journal] [file size test.db-journal]
+  } {1 0}
+}
+}
+
+ifcapable pragma {
+if {[atomic_batch_write test.db]==0} {
+  # These tests are not run as part of the "journaltest" permutation,
+  # as the test_journal.c layer is incompatible with in-memory journaling.
+  if {[permutation] ne "journaltest"} {
+
+    do_test jrnlmode-6.1 {
+      execsql {
+        PRAGMA journal_mode = truncate;
+        CREATE TABLE t4(a, b);
+        BEGIN;
+          INSERT INTO t4 VALUES(1, 2);
+          PRAGMA journal_mode = memory;
+      }
+    } {truncate truncate}
+    do_test jrnlmode-6.2 {
+      file exists test.db-journal
+    } {1}
+    do_test jrnlmode-6.3 {
+      execsql {
+        COMMIT;
+        SELECT * FROM t4;
+      }
+    } {1 2}
+    do_test jrnlmode-6.4 {
+      file exists test.db-journal
+    } {1}
+    do_test jrnlmode-6.5 {
+      execsql {
+        PRAGMA journal_mode = MEMORY;
+        BEGIN;
+          INSERT INTO t4 VALUES(3, 4);
+      }
+      file exists test.db-journal
+    } {0}
+    do_test jrnlmode-6.7 {
+      execsql {
+        COMMIT;
+        SELECT * FROM t4;
+      }
+    } {1 2 3 4}
+    do_test jrnlmode-6.8 {
+      file exists test.db-journal
+    } {0}
+    do_test jrnlmode-6.9 {
+      execsql {
+        PRAGMA journal_mode = DELETE;
+        BEGIN IMMEDIATE; INSERT INTO t4 VALUES(1,2); COMMIT;
+      }
+      file exists test.db-journal
+    } {0}
+  }
+}
+}
+
+ifcapable pragma {
+  catch { db close }
+  do_test jrnlmode-7.1 {
+    foreach f [glob -nocomplain test.db*] { forcedelete $f }
+    sqlite3 db test.db
+    execsql {
+      PRAGMA journal_mode = memory;
+      PRAGMA auto_vacuum = 0;
+      PRAGMA page_size = 1024;
+      PRAGMA user_version = 5;
+      PRAGMA user_version;
+    }
+  } {memory 5}
+  do_test jrnlmode-7.2 { file size test.db } {1024}
+}
+
+do_execsql_test jrnlmode-8.1  { PRAGMA locking_mode=EXCLUSIVE } {exclusive}
+do_execsql_test jrnlmode-8.2  { CREATE TABLE t1(x) }            {}
+do_execsql_test jrnlmode-8.3  { INSERT INTO t1 VALUES(123) }    {}
+do_execsql_test jrnlmode-8.4  { SELECT * FROM t1 }              {123}
+do_execsql_test jrnlmode-8.5  { PRAGMA journal_mode=PERSIST }   {persist}
+do_execsql_test jrnlmode-8.6  { PRAGMA journal_mode=DELETE }    {delete}
+do_execsql_test jrnlmode-8.7  { PRAGMA journal_mode=TRUNCATE }  {truncate}
+do_execsql_test jrnlmode-8.8  { PRAGMA journal_mode=DELETE }    {delete}
+do_execsql_test jrnlmode-8.9  { CREATE TABLE t2(y) }            {}
+do_execsql_test jrnlmode-8.10 { INSERT INTO t2 VALUES(456) }    {}
+do_execsql_test jrnlmode-8.11 { SELECT * FROM t1, t2 }          {123 456}
+do_execsql_test jrnlmode-8.12 { PRAGMA locking_mode=NORMAL }    {normal}
+do_execsql_test jrnlmode-8.13 { PRAGMA journal_mode=PERSIST }   {persist}
+do_execsql_test jrnlmode-8.14 { PRAGMA journal_mode=TRUNCATE }  {truncate}
+do_execsql_test jrnlmode-8.15 { PRAGMA journal_mode=PERSIST }   {persist}
+do_execsql_test jrnlmode-8.16 { PRAGMA journal_mode=DELETE }    {delete}
+do_execsql_test jrnlmode-8.17 { PRAGMA journal_mode=TRUNCATE }  {truncate}
+do_execsql_test jrnlmode-8.18 { PRAGMA locking_mode=EXCLUSIVE } {exclusive}
+do_execsql_test jrnlmode-8.19 { CREATE TABLE t3(z) }            {}
+do_execsql_test jrnlmode-8.20 { BEGIN IMMEDIATE }               {}
+do_execsql_test jrnlmode-8.21 { PRAGMA journal_mode=DELETE }    {delete}
+do_execsql_test jrnlmode-8.22 { COMMIT }                        {}
+do_execsql_test jrnlmode-8.23 { PRAGMA journal_mode=DELETE }    {delete}
+do_execsql_test jrnlmode-8.24 { PRAGMA journal_mode=TRUNCATE }  {truncate}
+do_execsql_test jrnlmode-8.25 { PRAGMA locking_mode=NORMAL }    {normal}
+do_execsql_test jrnlmode-8.26 { CREATE TABLE t4(w) }            {}
+do_execsql_test jrnlmode-8.27 { BEGIN IMMEDIATE }               {}
+do_execsql_test jrnlmode-8.28 { PRAGMA journal_mode=DELETE }    {delete}
+do_execsql_test jrnlmode-8.29 { COMMIT }                        {}
+do_execsql_test jrnlmode-8.30 { PRAGMA journal_mode=DELETE }    {delete}
+
+# Assertion fault on 2015-05-01
+do_test jrnlmode-9.1 {
+  forcedelete test2.db
+  sqlite3 db2 test2.db
+  db2 eval {CREATE TEMP TABLE t(l); PRAGMA journal_mode=off;}
+  db2 close
+} {}
+do_execsql_test jrnlmode-9.2 {
+  PRAGMA locking_mode = exclusive;
+  CREATE TABLE tx(a);
+  PRAGMA journal_mode = off;
+} {exclusive off}
+
+
+finish_test
diff --git a/test/jrnlmode2.test b/test/jrnlmode2.test
new file mode 100644
index 0000000000000000000000000000000000000000..6cc54dc5dfa8ec3ff06f929e0f91414cfaeea522
--- /dev/null
+++ b/test/jrnlmode2.test
@@ -0,0 +1,128 @@
+# 2009 March 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable {!pager_pragmas} {
+  finish_test
+  return
+}
+
+if {[atomic_batch_write test.db]} {
+  finish_test
+  return
+}
+
+#-------------------------------------------------------------------------
+# The tests in this file check that the following two bugs (both now fixed)
+# do not reappear.
+#
+# jrnlmode2-1.*: Demonstrate bug #3745:
+#
+#     In persistent journal mode, if:
+#
+#       * There is a persistent journal in the file-system, AND
+#       * there exists a connection with a shared lock on the db file, 
+#
+#     then a second connection cannot open a read-transaction on the database.
+#     The reason is because while determining that the persistent-journal is
+#     not a hot-journal, SQLite currently grabs an exclusive lock on the
+#     database file. If this fails because another connection has a shared
+#     lock, then SQLITE_BUSY is returned to the user.  
+#
+# jrnlmode2-2.*: Demonstrate bug #3751:
+#
+#     If a connection is opened in SQLITE_OPEN_READONLY mode, the underlying
+#     unix file descriptor on the database file is opened in O_RDONLY mode.
+#
+#     When SQLite queries the database file for the schema in order to compile
+#     the SELECT statement, it sees the empty journal in the file system, it
+#     attempts to obtain an exclusive lock on the database file (this is a
+#     bug). The attempt to obtain an exclusive (write) lock on a read-only file
+#     fails at the OS level. Under unix, fcntl() reports an EBADF - "Bad file
+#     descriptor" - error. 
+#
+
+do_test jrnlmode2-1.1 {
+  execsql {
+    PRAGMA journal_mode = persist;
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, 2);
+  }
+} {persist}
+
+do_test jrnlmode2-1.2 {
+  file exists test.db-journal
+} {1}
+
+do_test jrnlmode2-1.3 {
+  sqlite3 db2 test.db
+  execsql { SELECT * FROM t1 } db2
+} {1 2}
+
+do_test jrnlmode2-1.4 {
+  execsql {
+    INSERT INTO t1 VALUES(3, 4);
+  }
+  execsql {
+    BEGIN;
+    SELECT * FROM t1;
+  }
+  execsql { PRAGMA lock_status }
+} {main shared temp closed}
+
+do_test jrnlmode2-1.5 {
+  file exists test.db-journal
+} {1}
+
+do_test jrnlmode2-1.6 {
+  catchsql { SELECT * FROM t1 } db2
+} {0 {1 2 3 4}}
+
+do_test jrnlmode2-1.7 {
+  execsql { COMMIT }
+  catchsql { SELECT * FROM t1 } db2
+} {0 {1 2 3 4}}
+
+
+
+do_test jrnlmode2-2.1 {
+  db2 close
+  execsql { PRAGMA journal_mode = truncate }
+  execsql { INSERT INTO t1 VALUES(5, 6) }
+} {}
+
+do_test jrnlmode2-2.2 {
+  file exists test.db-journal
+} {1}
+
+do_test jrnlmode2-2.3 {
+  file size test.db-journal
+} {0}
+
+do_test jrnlmode2-2.4 {
+  sqlite3 db2 test.db -readonly 1
+  catchsql { SELECT * FROM t1 } db2
+} {0 {1 2 3 4 5 6}}
+
+do_test jrnlmode2-2.5 {
+  db close
+  delete_file test.db-journal
+} {}
+do_test jrnlmode2-2.6 {
+  sqlite3 db2 test.db -readonly 1
+  catchsql { SELECT * FROM t1 } db2
+} {0 {1 2 3 4 5 6}}
+
+catch { db2 close }
+finish_test
diff --git a/test/jrnlmode3.test b/test/jrnlmode3.test
new file mode 100644
index 0000000000000000000000000000000000000000..43da6579abc1c032053ffc64c1917e6b08754b61
--- /dev/null
+++ b/test/jrnlmode3.test
@@ -0,0 +1,149 @@
+# 2009 April 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test cases inspired by ticket #3811.  Tests to make sure that
+# the journal_mode can only be changed at appropriate times and that
+# all reported changes are effective.
+#
+# $Id: jrnlmode3.test,v 1.5 2009/04/20 17:43:03 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable {!pager_pragmas} {
+  finish_test
+  return
+}
+
+#
+# Verify that journal_mode=OFF works as long as it occurs before the first
+# transaction, even if locking_mode=EXCLUSIVE is enabled.  The behavior if
+# journal_mode is changed after the first transaction is undefined and hence
+# untested.
+#
+do_test jrnlmode3-1.1 {
+  db eval {
+    PRAGMA journal_mode=OFF;
+    PRAGMA locking_mode=EXCLUSIVE;
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(1);
+    SELECT * FROM t1;
+  }
+} {off exclusive 1}
+do_test jrnlmode3-1.2 {
+  db eval {
+    BEGIN;
+    INSERT INTO t1 VALUES(2);
+    ROLLBACK;
+    SELECT * FROM t1;
+  }
+} {1}
+
+db close
+forcedelete test.db test.db-journal
+sqlite3 db test.db
+
+do_test jrnlmode3-2.1 {
+  db eval {
+    PRAGMA locking_mode=EXCLUSIVE;
+    PRAGMA journal_mode=OFF;
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(1);
+    SELECT * FROM t1;
+  }
+} {exclusive off 1}
+do_test jrnlmode3-2.2 {
+  db eval {
+    BEGIN;
+    INSERT INTO t1 VALUES(2);
+    ROLLBACK;
+    SELECT * FROM t1;
+  }
+} {1}
+
+# Test cases to verify that we can move from any journal_mode
+# to any other, as long as we are not in a transaction.  Verify
+# that we cannot change journal_mode while a transaction is active.
+#
+set all_journal_modes {delete persist truncate memory off}
+set cnt 0
+foreach fromjmode $all_journal_modes {
+  foreach tojmode $all_journal_modes {
+
+    # Skip the no-change cases
+    if {$fromjmode==$tojmode} continue
+    incr cnt
+
+    # Start with a fresh database connection an empty database file.
+    #
+    db close
+    forcedelete test.db test.db-journal
+    sqlite3 db test.db
+
+    # Initialize the journal mode.
+    #
+    do_test jrnlmode3-3.$cnt.1-($fromjmode-to-$tojmode) {
+      db eval "PRAGMA journal_mode = $fromjmode;"
+    } $fromjmode
+
+    # Verify that the initial journal mode takes.
+    #
+    do_test jrnlmode3-3.$cnt.2 {
+      db eval {PRAGMA main.journal_mode}
+    } $fromjmode
+
+    # Start a transaction and try to change the journal mode within
+    # the transaction.  This should fail.
+    #
+    do_test jrnlmode3-3.$cnt.3 {
+      db eval {
+        CREATE TABLE t1(x);
+        BEGIN;
+        INSERT INTO t1 VALUES($cnt);
+      }
+      db eval "PRAGMA journal_mode=$tojmode"
+    } $fromjmode
+
+    # Rollback the transaction.  
+    #
+    do_test jrnlmode3-3.$cnt.4 {
+      db eval {
+        ROLLBACK;
+        SELECT * FROM t1;
+      }
+    } {}
+
+    # Now change the journal mode again.  This time the new mode
+    # should take.
+    #
+    do_test jrnlmode3-3.$cnt.5 {
+      db eval "PRAGMA journal_mode=$tojmode"
+    } $tojmode
+
+    # Do a the transaction.  Verify that the rollback occurred
+    # if journal_mode!=OFF.
+    #
+    do_test jrnlmode3-3.$cnt.6 {
+      db eval {
+        DROP TABLE IF EXISTS t1;
+        CREATE TABLE t1(x);
+        BEGIN;
+        INSERT INTO t1 VALUES(1);
+      }
+      db eval ROLLBACK
+      db eval {
+        SELECT * FROM t1;
+      }
+    } {}
+  }
+}
+
+finish_test
diff --git a/test/json/README.md b/test/json/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..4ebbda6d3fc5a4d7654cecf211bef0e39284812d
--- /dev/null
+++ b/test/json/README.md
@@ -0,0 +1,66 @@
+The files in this subdirectory are used to help measure the performance
+of the SQLite JSON functions, especially in relation to handling large
+JSON inputs.
+
+# 1.0 Prerequisites
+
+  *   Standard SQLite build environment (SQLite source tree, compiler, make, etc.)
+
+  *   Valgrind
+
+  *   Fossil (only the "fossil xdiff" command is used by this procedure)
+
+  *   tclsh
+
+# 2.0 Setup
+
+  *   Run: "`tclsh json-generator.tcl | sqlite3 json100mb.db`" to create
+      the 100 megabyte test database.  Do this so that the "json100mb.db"
+      file lands in the directory from which you will run tests, not in
+      the test/json subdirectory of the source tree.
+
+  *   Make a copy of "json100mb.db" into "jsonb100mb.db" - change the prefix
+      from "json" to "jsonb".
+
+  *   Bring up jsonb100mb.db in the sqlite3 command-line shell.
+      Convert all of the content into JSONB using a commands like this:
+
+>        UPDATE data1 SET x=jsonb(x);
+>        VACUUM;
+
+  *   Build the baseline sqlite3.c file with sqlite3.h and shell.c.
+
+>        make clean sqlite3.c
+
+  *   Run "`sh json-speed-check.sh trunk`".   This creates the baseline
+      profile in "jout-trunk.txt" for the preformance test using text JSON.
+
+  *   Run "`sh json-speed-check.sh trunk --jsonb`".  This creates the
+      baseline profile in "joutb-trunk.txt" for the performance test
+      for processing JSONB
+
+  *   (Optional) Verify that the json100mb.db database really does contain
+      approximately 100MB of JSON content by running:
+
+>        SELECT sum(length(x)) FROM data1;
+>        SELECT * FROM data1 WHERE NOT json_valid(x);
+
+# 3.0 Testing
+
+  *   Build the sqlite3.c (with sqlite3.h and shell.c) to be tested.
+
+  *   Run "`sh json-speed-check.sh x1`".  The profile output will appear
+      in jout-x1.txt.  Substitute any label you want in place of "x1".
+
+  *   Run "`sh json-speed-check.sh x1 --jsonb`".  The profile output will appear
+      in joutb-x1.txt.  Substitute any label you want in place of "x1".
+
+  *   Run the script shown below in the CLI.
+      Divide 2500 by the real elapse time from this test
+      to get an estimate for number of MB/s that the JSON parser is
+      able to process.
+
+>        .open json100mb.db
+>        .timer on
+>        WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<25)
+>        SELECT sum(json_valid(x)) FROM c, data1;
diff --git a/test/json/json-generator.tcl b/test/json/json-generator.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..d499bc73004404f1eccaebf178a29cae60c6f7ea
--- /dev/null
+++ b/test/json/json-generator.tcl
@@ -0,0 +1,401 @@
+#!/usr/bin/tclsh
+#
+# Generate SQL that will populate an SQLite database with about 100 megabytes
+# of pseudo-random JSON text.
+#
+#     tclsh json-generator.tcl | sqlite3 json110mb.db
+#
+# srand() is used to initialize the random seed so that the same JSON
+# is generated for every run.
+#
+expr srand(12345678)
+set wordlist {
+   ability   able      abroad    access    account   act
+   action    active    actor     add       address   adept
+   adroit    advance   advice    affect    age       ageless
+   agency    agent     agile     agree     air       airfare
+   airline   airport   alert     almond    alpha     always
+   amend     amount    amplify   analyst   anchor    angel
+   angelic   angle     ankle     annual    answer    antique
+   anybody   anyhow    appeal    apple     apricot   apt
+   area      argon     arm       army      arrival   arsenic
+   art       artful    article   arugula   aside     ask
+   aspect    assist    assume    atom      atone     attempt
+   author    autumn    average   avocado   award     awl
+   azure     back      bacon     bag       bagel     bake
+   baker     balance   ball      balloon   bamboo    banana
+   band      banjo     bank      barium    base      basil
+   basin     basis     basket    bass      bat       bath
+   battery   beach     beak      bean      bear      bearcub
+   beauty    beef      beet      beige     being     bell
+   belly     belt      bench     bend      benefit   best
+   beta      better    beyond    bicycle   bid       big
+   bike      bill      bird      biscuit   bismuth   bisque
+   bit       black     blank     blest     blind     bliss
+   block     bloom     blue      board     boat      body
+   bokchoy   bone      bonus     book      bookish   boot
+   border    boron     boss      bossy     bottle    bottom
+   bow       bowl      bowtie    box       brain     brainy
+   branch    brave     bravely   bread     break     breath
+   breezy    brick     bridge    brie      brief     briefly
+   bright    broad     broil     bromine   bronze    brother
+   brow      brown     brush     buddy     budget    buffalo
+   bug       bugle     bull      bunch     burger    burly
+   burrito   bus       busy      butter    button    buy
+   buyer     byte      cab       cabbage   cabinet   cable
+   cadet     cadmium   caesium   cake      calcium   caliper
+   call      caller    calm      calmly    camera    camp
+   can       canary    cancel    candle    candy     cap
+   capable   caper     capital   captain   car       carbon
+   card      care      career    careful   carp      carpet
+   carrot    carry     case      cash      cassava   casual
+   cat       catch     catfish   catsear   catsup    cause
+   cave      celery    cell      century   chain     chair
+   chalk     chance    change    channel   chapter   chard
+   charge    charity   chart     check     cheddar   cheery
+   cheese    chicken   chicory   chiffon   child     chin
+   chip      chives    choice    chowder   chum      church
+   circle    city      claim     clam      class     classic
+   classy    clay      clean     cleaner   clear     clearly
+   clerk     click     client    climate   clock     clorine
+   closet    clothes   cloud     clown     club      clue
+   cluster   coach     coast     coat      cobbler   cobolt
+   cod       code      coffee    colby     cold      collar
+   college   comb      combine   comet     comfort   command
+   comment   common    company   complex   concept   concern
+   concert   conduit   consist   contact   contest   context
+   control   convert   cook      cookie    copilot   copper
+   copy      coral     cordial   corn      corner    corny
+   correct   cost      count     counter   country   county
+   couple    courage   course    court     cover     cow
+   cowbird   crab      crack     craft     crash     crazy
+   cream     credit    creek     cress     crevice   crew
+   crimson   croaker   crop      cross     crowd     cube
+   cuckoo    cuisine   culture   cup       current   curve
+   cut       cyan      cycle     dagger    daily     dance
+   dare      darter    data      date      day       daylily
+   deal      dear      dearly    debate    debit     decade
+   decimal   deep      deft      deftly    degree    delay
+   deluxe    deposit   depth     design    desk      detail
+   device    dew       diamond   diet      dig       dill
+   dinner    dip       direct    dirt      dish      disk
+   display   diver     divide    divine    doctor    dodger
+   donut     door      dot       double    dough     draft
+   drag      dragon    drama     draw      drawer    drawing
+   dream     drill     drink     drive     driver    drop
+   drum      dry       dryer     drywall   duck      due
+   dump      dusk      dust      duty      dye       eagle
+   ear       earring   earth     ease      east      easy
+   eat       economy   edge      editor    eel       effect
+   effort    egg       eight     elbow     elegant   element
+   elf       elk       email     emerald   employ    end
+   endive    endless   energy    engine    enjoy     enter
+   entry     equal     equip     error     escape    essay
+   eternal   evening   event     exam      example   excuse
+   exit      expert    extent    extreme   eye       face
+   fact      factor    factual   fail      failure   fair
+   fajita    fall      family    fan       fang      farm
+   farmer    fat       fault     feature   feed      feel
+   feeling   fench     fennel    festive   few       fiber
+   field     fig       figure    file      fill      film
+   filter    final     finance   finding   finger    finish
+   fire      fish      fishing   fit       fitting   five
+   fix       flier     flight    floor     floral    florine
+   flour     flow      flower    fly       flying    focus
+   fold      folding   food      foot      force     forest
+   forever   forgive   form      formal    format    fortune
+   forum     frame     free      freedom   freely    fresh
+   friend    frog      front     fruit     fuchsia   fuel
+   fun       funny     future    gain      galaxy    gallium
+   game      gamma     gap       garage    garden    garlic
+   gas       gate      gather    gauge     gear      gem
+   gene      general   gentle    gently    gherkin   ghost
+   gift      give      glad      glass     gleeful   glossy
+   glove     glue      goal      goat      goby      gold
+   goldeye   golf      good      gouda     goulash   gourd
+   grab      grace     grade     gram      grand     grape
+   grapes    grass     gravy     gray      great     green
+   grits     grocery   ground    group     grouper   grout
+   growth    guard     guave     guess     guest     guide
+   guitar    gumbo     guppy     habit     hacksaw   haddock
+   hafnium   hagfish   hair      half      halibut   hall
+   hammer    hand      handle    handy     hanger    happy
+   hat       havarti   hay       haybale   head      health
+   healthy   hearing   heart     hearty    heat      heavy
+   heel      height    helium    hello     help      helpful
+   herald    herring   hide      high      highly    highway
+   hill      hip       hipster   hire      history   hit
+   hoki      hold      hole      holiday   holly     home
+   honest    honey     hook      hope      hopeful   horizon
+   horn      horse     host      hotel     hour      house
+   housing   human     humane    humor     hunt      hurry
+   ice       icecube   icefish   icy       idea      ideal
+   image     impact    impress   inch      income    indigo
+   initial   inkpen    insect    inside    intense   invite
+   iodine    iridium   iron      island    issue     item
+   ivory     jacket    jargon    javelin   jello     jelly
+   jewel     job       jocund    join      joint     joke
+   jovial    joy       joyful    joyous    judge     juice
+   jump      junior    jury      just      justice   kale
+   keel      keep      kelp      ketchup   key       keyhole
+   keyway    khaki     kick      kid       kidney    kiloohm
+   kind      kindly    king      kitchen   kite      kiwi
+   knee      knife     krill     krypton   kumquat   lab
+   lace      lack      ladder    lake      lamp      lamprey
+   land      laser     laugh     law       lawn      lawyer
+   layer     lead      leader    leading   leaf      leafy
+   league    leather   leave     lecture   leek      leg
+   lemon     length    lentil    lesson    let       letter
+   lettuce   level     library   life      lift      light
+   lily      lime      limit     line      linen     link
+   lip       list      listen    lithium   lively    living
+   lizard    load      loan      lobster   local     lock
+   log       long      longfin   look      lotus     love
+   lovely    loving    low       lucid     luck      luffa
+   lunch     lung      machine   magenta   magnet    mail
+   main      major     make      mall      manager   mango
+   manner    many      map       march     market    maroon
+   martian   master    match     math      matter    maximum
+   maybe     meal      meaning   meat      media     medium
+   meet      meeting   melody    melon     member    memory
+   mention   menu      mercury   merry     mess      message
+   messy     metal     meter     method    micron    middle
+   might     mile      milk      mind      mine      minimum
+   minnow    minor     mint      minute    mirror    miss
+   mission   misty     mix       mixer     mixture   mobile
+   mode      model     moment    monitor   monk      month
+   moon      moray     morning   most      motor     mouse
+   mouth     move      mover     movie     much      mud
+   mudfish   muffin    mullet    munster   muon      muscle
+   music     mustard   nail      name      nation    native
+   natural   nature    navy      neat      neatly    nebula
+   neck      needle    neon      nerve     net       network
+   neutron   news      nibble    nice      nickel    night
+   niobium   nobody    noise     noodle    normal    north
+   nose      note      nothing   notice    nova      novel
+   number    nurse     nursery   oar       object    offer
+   office    officer   oil       okay      okra      old
+   olive     one       onion     open      opening   opinion
+   option    orange    orbit     orchid    order     oregano
+   other     ounce     outcome   outside   oven      owner
+   oxygen    oyster    pace      pack      package   page
+   pager     paint     pair      pale      pan       pancake
+   papaya    paper     pardon    parent    park      parking
+   parsley   parsnip   part      partner   party     pass
+   passage   past      pasta     path      patient   pattern
+   pause     pay       pea       peace     peach     peacock
+   peahen    peak      peanut    pear      pearl     pen
+   penalty   pencil    pension   people    pepper    perch
+   perfect   period    permit    person    phase     phone
+   photo     phrase    physics   piano     pick      picture
+   pie       piece     pigeon    pike      pilot     pin
+   pink      pinkie    pious     pipe      pitch     pizza
+   place     plan      plane     planet    plant     planter
+   plastic   plate     play      player    playful   plenty
+   pliers    plum      pod       poem      poet      poetry
+   point     police    policy    pollock   pony      pool
+   pop       popover   poptart   pork      port      portal
+   post      pot       potato    pound     powder    power
+   present   press     price     pride     primary   print
+   prior     private   prize     problem   process   produce
+   product   profile   profit    program   project   promise
+   prompt    proof     proper    protein   proton    public
+   puff      puffer    pull      pumpkin   pup       pupfish
+   pure      purple    purpose   push      put       quality
+   quark     quarter   quiet     quill     quit      quote
+   rabbit    raccoon   race      radiant   radio     radish
+   radium    radon     rain      rainbow   raise     ramp
+   ranch     range     rasp      rate      ratio     ray
+   razor     reach     read      reading   real      reality
+   reason    recipe    record    recover   red       redeem
+   reed      reef      refuse    region    regret    regular
+   relaxed   release   relief    relish    remote    remove
+   rent      repair    repeat    reply     report    request
+   reserve   resist    resolve   resort    rest      result
+   return    reveal    review    reward    ribbon    rice
+   rich      ride      ridge     right     ring      rise
+   risk      river     rivet     road      roast     rock
+   rocket    role      roll      roof      room      rope
+   rose      rough     roughy    round     row       royal
+   rub       ruby      rudder    ruin      rule      run
+   runner    rush      rust      sacred    saddle    safe
+   safety    sail      salad     salami    sale      salmon
+   salt      sample    sand      sander    sandy     sauce
+   save      saving    saw       scale     scampi    scene
+   scheme    school    score     screen    script    sea
+   search    season    seat      second    secret    sector
+   seemly    self      sell      senate    senior    sense
+   series    serve     set       shake     shape     share
+   shark     shell     shift     shine     shiny     ship
+   shock     shoe      shoot     shop      shovel    show
+   side      sign      signal    silk      silly     silver
+   simple    sing      singer    single    sink      site
+   size      skill     skin      sky       slate     sleep
+   sleepy    slice     slide     slip      smart     smell
+   smelt     smile     smoke     smooth    snap      snipe
+   snow      snowy     sock      socket    sodium    soft
+   softly    soil      sole      solid     song      sorrel
+   sort      soul      sound     soup      source    south
+   space     spare     speech    speed     spell     spend
+   sphere    spice     spider    spirit    spite     split
+   spoon     sport     spot      spray     spread    spring
+   squab     square    squash    stable    staff     stage
+   stand     staple    star      start     state     status
+   stay      steak     steel     step      stern     stew
+   stick     still     stock     stone     stop      store
+   storm     story     strain    street    stress    strike
+   string    stroke    strong    studio    study     stuff
+   style     sugar     suit      sulfur    summer    sun
+   sunny     sunset    super     superb    surf      survey
+   sweet     swim      swing     switch    symbol    system
+   table     tackle    tail      tale      talk      tan
+   tank      tap       tape      target    task      taste
+   tau       tea       teach     teal      team      tear
+   tell      ten       tender    tennis    tent      term
+   test      tetra     text      thanks    theme     theory
+   thing     think     thread    throat    thumb     ticket
+   tidy      tie       tiger     till      time      timely
+   tin       tip       title     toast     today     toe
+   tomato    tone      tongue    tool      tooth     top
+   topic     total     touch     tough     tour      towel
+   tower     town      track     trade     train     trash
+   travel    tray      treat     tree      trick     trip
+   trout     trowel    truck     trupet    trust     truth
+   try       tube      tuna      tune      turf      turkey
+   turn      turnip    tutor     tux       tweet     twist
+   two       type      union     unique    unit      upbeat
+   upper     use       useful    user      usual     valley
+   value     van       vase      vast      veil      vein
+   velvet    verse     very      vessel    vest      video
+   view      violet    visit     visual    vivid     voice
+   volume    vowel     voyage    waffle    wait      wake
+   walk      wall      warm      warmth    wasabi    wash
+   watch     water     wave      wax       way       wealth
+   wear      web       wedge     week      weekly    weight
+   west      whale     what      wheat     wheel     when
+   where     while     who       whole     why       will
+   win       wind      window    wing      winner    winter
+   wire      wish      witty     wolf      wonder    wood
+   wool      woolly    word      work      worker    world
+   worry     worth     worthy    wrap      wrench    wrist
+   writer    xenon     yak       yam       yard      yarrow
+   year      yearly    yellow    yew       yogurt    young
+   youth     zebra     zephyr    zinc      zone      zoo
+}
+set nwordlist [llength $wordlist]
+
+proc random_char {} {
+  return [string index \
+             "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ" \
+             [expr {int(rand()*52)}]]
+}
+proc random_label {} {
+  set label [random_char]
+  while {rand()>0.8} {
+    append label [random_char]
+  }
+  if {rand()>0.9} {append label -}
+  append label [format %d [expr {int(rand()*100)}]]
+  return $label
+}
+proc random_numeric {} {
+  set n [expr {(rand()*2-1.0)*1e6}]
+  switch [expr {int(rand()*6)}] {
+    0  {set format %.3f}
+    1  {set format %.6E}
+    2  {set format %.4e}
+    default  {set format %g}
+  }
+  return [format $format $n]
+}
+
+
+proc random_json {limit indent} {
+  global nwordlist wordlist
+  set res {}
+  if {$indent==0 || ($limit>0 && rand()>0.5)} {
+    incr limit -1
+    incr indent 2
+    set n [expr {int(rand()*5)+1}]
+    if {$n==5} {incr n [expr {int(rand()*10)}]}
+    if {rand()>0.5} {
+      set res \173\n
+      for {set i 0} {$i<$n} {incr i} {
+        append res [string repeat { } $indent]
+        if {rand()>0.8} {
+          if {rand()>0.5} {
+            set sep ":\n   [string repeat { } $indent]"
+          } else {
+            set sep " : "
+          }
+        } else {
+          set sep :
+        }
+        append res \"[random_label]\"$sep[random_json $limit $indent]
+        if {$i<$n-1} {append res ,}
+        append res \n
+      }
+      incr indent -2
+      append res [string repeat { } $indent]
+      append res \175
+      return $res
+    } else {
+      set res \[\n
+      for {set i 0} {$i<$n} {incr i} {
+        append res [string repeat { } $indent]
+        append res [random_json $limit $indent]
+        if {$i<$n-1} {append res ,}
+        append res \n
+      }
+      incr indent -2
+      append res [string repeat { } $indent]
+      append res \]
+      return $res
+    }
+  } elseif {rand()>0.9} {
+    if {rand()>0.7} {return "true"}
+    if {rand()>0.5} {return "false"}
+    return "null"
+  } elseif {rand()>0.5} {
+    return [random_numeric]
+  } else {
+    set res \"
+    set n [expr {int(rand()*4)+1}]
+    if {$n>=4} {set n [expr {$n+int(rand()*6)}]}
+    for {set i 0} {$i<$n} {incr i} {
+      if {rand()<0.05} {
+        set w [random_numeric]
+      } else {
+        set k [expr {int(rand()*$nwordlist)}]
+        set w [lindex $wordlist $k]
+      }
+      if {rand()<0.07} {
+         set w \\\"$w\\\"
+      }
+      if {$i<$n-1} {
+        switch [expr {int(rand()*9)}] {
+          0       {set sp {, }}
+          1       {set sp "\\n "}
+          2       {set sp "-"}
+          default {set sp { }}
+        }
+        append res $w$sp
+      } else {
+        append res $w
+        if {rand()<0.2} {append res .}
+      }
+    }
+    return $res\"
+  }
+}
+
+puts "CREATE TABLE IF NOT EXISTS data1(x JSON);"
+puts "BEGIN;"
+set sz 0
+for {set i 0} {$sz<100000000} {incr i} {
+  set j [random_json 7 0]
+  incr sz [string length $j]
+  puts "INSERT INTO data1(x) VALUES('$j');"
+}
+puts "COMMIT;"
+puts "SELECT sum(length(x)) FROM data1;"
diff --git a/test/json/json-q1.txt b/test/json/json-q1.txt
new file mode 100644
index 0000000000000000000000000000000000000000..d122a2d826df8f56194e884e54c4ce9bf6329489
--- /dev/null
+++ b/test/json/json-q1.txt
@@ -0,0 +1,24 @@
+.mode qbox
+.timer on
+.param set $label 'q87'
+SELECT rowid, x->>$label FROM data1 WHERE x->>$label IS NOT NULL;
+
+CREATE TEMP TABLE t2(x JSON TEXT);
+WITH RECURSIVE
+  c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<25000),
+  array1(y) AS (
+    SELECT json_group_array(
+             json_object('x',x,'y',random(),'z',hex(randomblob(50)))
+           )
+      FROM c
+  ),
+  c2(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c2 WHERE n<5)
+INSERT INTO t2(x)
+  SELECT json_object('a',n,'b',n*2,'c',y,'d',3,'e',5,'f',6) FROM array1, c2;
+CREATE INDEX t2x1 ON t2(x->>'a');
+CREATE INDEX t2x2 ON t2(x->>'b');
+CREATE INDEX t2x3 ON t2(x->>'e');
+CREATE INDEX t2x4 ON t2(x->>'f');
+UPDATE t2 SET x=json_replace(x,'$.f',(x->>'f')+1);
+UPDATE t2 SET x=json_set(x,'$.e',(x->>'f')-1);
+UPDATE t2 SET x=json_remove(x,'$.d');
diff --git a/test/json/json-speed-check.sh b/test/json/json-speed-check.sh
new file mode 100644
index 0000000000000000000000000000000000000000..682a7aeeddf65cab237f480ffca9841cad194256
--- /dev/null
+++ b/test/json/json-speed-check.sh
@@ -0,0 +1,87 @@
+#!/bin/bash
+#
+# This is a template for a script used for day-to-day size and 
+# performance monitoring of SQLite.  Typical usage:
+#
+#     sh speed-check.sh trunk  #  Baseline measurement of trunk
+#     sh speed-check.sh x1     # Measure some experimental change
+#     fossil xdiff --tk jout-trunk.txt jout-x1.txt   # View chanages
+#
+# There are multiple output files, all with a base name given by
+# the first argument:
+#
+#     summary-$BASE.txt           # Copy of standard output
+#     jout-$BASE.txt              # cachegrind output
+#     explain-$BASE.txt           # EXPLAIN listings (only with --explain)
+#
+if test "$1" = ""
+then
+  echo "Usage: $0 OUTPUTFILE [OPTIONS]"
+  exit
+fi
+NAME=$1
+shift
+#CC_OPTS="-DSQLITE_ENABLE_RTREE -DSQLITE_ENABLE_MEMSYS5"
+CC_OPTS="-DSQLITE_ENABLE_MEMSYS5"
+CC=gcc
+LEAN_OPTS="-DSQLITE_THREADSAFE=0"
+LEAN_OPTS="$LEAN_OPTS -DSQLITE_DEFAULT_MEMSTATUS=0"
+LEAN_OPTS="$LEAN_OPTS -DSQLITE_DEFAULT_WAL_SYNCHRONOUS=1"
+LEAN_OPTS="$LEAN_OPTS -DSQLITE_LIKE_DOESNT_MATCH_BLOBS"
+LEAN_OPTS="$LEAN_OPTS -DSQLITE_MAX_EXPR_DEPTH=0"
+LEAN_OPTS="$LEAN_OPTS -DSQLITE_OMIT_DECLTYPE"
+LEAN_OPTS="$LEAN_OPTS -DSQLITE_OMIT_DEPRECATED"
+LEAN_OPTS="$LEAN_OPTS -DSQLITE_OMIT_PROGRESS_CALLBACK"
+LEAN_OPTS="$LEAN_OPTS -DSQLITE_OMIT_SHARED_CACHE"
+LEAN_OPTS="$LEAN_OPTS -DSQLITE_USE_ALLOCA"
+BASELINE="trunk"
+TYPE="json"
+doExplain=0
+doCachegrind=1
+doVdbeProfile=0
+doWal=1
+doDiff=1
+doJsonB=0
+while test "$1" != ""; do
+  case $1 in
+    --nodiff)
+	doDiff=0
+        ;;
+    --lean)
+        CC_OPTS="$CC_OPTS $LEAN_OPTS"
+        ;;
+    --clang)
+        CC=clang
+        ;;
+    --gcc7)
+        CC=gcc-7
+        ;;
+    --jsonb)
+        doJsonB=1
+        TYPE="jsonb"
+        ;;
+    -*)
+        CC_OPTS="$CC_OPTS $1"
+        ;;
+    *)
+	BASELINE=$1
+        ;;
+  esac
+  shift
+done
+echo "NAME           = $NAME" | tee summary-$NAME.txt
+echo "CC_OPTS        = $CC_OPTS" | tee -a summary-$NAME.txt
+rm -f cachegrind.out.* jsonshell
+$CC -g -Os -Wall -I. $CC_OPTS ./shell.c ./sqlite3.c -o jsonshell -ldl -lpthread
+ls -l jsonshell | tee -a summary-$NAME.txt
+home=`echo $0 | sed -e 's,/[^/]*$,,'`
+DB=$TYPE''100mb.db
+echo ./jsonshell $DB "<$home/$TYPE-q1.txt"
+valgrind --tool=cachegrind ./jsonshell json100mb_b.db <$home/$TYPE-q1.txt \
+        2>&1 | tee -a summary-$NAME.txt
+cg_anno.tcl cachegrind.out.* >$TYPE-$NAME.txt
+echo '*****************************************************' >>$TYPE-$NAME.txt
+sed 's/^[0-9=-]\{9\}/==00000==/' summary-$NAME.txt >>$TYPE-$NAME.txt
+if test "$NAME" != "$BASELINE" -a $doDiff -ne 0; then
+  fossil xdiff --tk -c 20 $TYPE-$BASELINE.txt $TYPE-$NAME.txt
+fi
diff --git a/test/json/jsonb-q1.txt b/test/json/jsonb-q1.txt
new file mode 100644
index 0000000000000000000000000000000000000000..e78c63670ac574df1066f50dad3953ddd9c72a47
--- /dev/null
+++ b/test/json/jsonb-q1.txt
@@ -0,0 +1,24 @@
+.mode qbox
+.timer on
+.param set $label 'q87'
+SELECT rowid, x->>$label FROM data1 WHERE x->>$label IS NOT NULL;
+
+CREATE TEMP TABLE t2(x JSON TEXT);
+WITH RECURSIVE
+  c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<25000),
+  array1(y) AS (
+    SELECT json_group_array(
+             json_object('x',x,'y',random(),'z',hex(randomblob(50)))
+           )
+      FROM c
+  ),
+  c2(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c2 WHERE n<5)
+INSERT INTO t2(x)
+  SELECT jsonb_object('a',n,'b',n*2,'c',y,'d',3,'e',5,'f',6) FROM array1, c2;
+CREATE INDEX t2x1 ON t2(x->>'a');
+CREATE INDEX t2x2 ON t2(x->>'b');
+CREATE INDEX t2x3 ON t2(x->>'e');
+CREATE INDEX t2x4 ON t2(x->>'f');
+UPDATE t2 SET x=jsonb_replace(x,'$.f',(x->>'f')+1);
+UPDATE t2 SET x=jsonb_set(x,'$.e',(x->>'f')-1);
+UPDATE t2 SET x=jsonb_remove(x,'$.d');
diff --git a/test/json101.test b/test/json101.test
new file mode 100644
index 0000000000000000000000000000000000000000..3963ffbb6bc259539950eb5b3eb1ccded9e46853
--- /dev/null
+++ b/test/json101.test
@@ -0,0 +1,1181 @@
+# 2015-08-12
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements tests for JSON SQL functions extension to the
+# SQLite library.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_execsql_test json101-1.1.00 {
+  SELECT json_array(1,2.5,null,'hello');
+} {[1,2.5,null,"hello"]}
+do_execsql_test json101-1.1.01 {
+  SELECT json_array(1,'{"abc":2.5,"def":null,"ghi":hello}',99);
+  -- the second term goes in as a string:
+} {[1,"{\\"abc\\":2.5,\\"def\\":null,\\"ghi\\":hello}",99]}
+do_execsql_test json101-1.1.02 {
+  SELECT json_array(1,json('{"abc":2.5,"def":null,"ghi":"hello"}'),99);
+  -- the second term goes in as JSON
+} {[1,{"abc":2.5,"def":null,"ghi":"hello"},99]}
+do_execsql_test json101-1.1.03 {
+  SELECT json_array(1,json_object('abc',2.5,'def',null,'ghi','hello'),99);
+  -- the second term goes in as JSON
+} {[1,{"abc":2.5,"def":null,"ghi":"hello"},99]}
+do_execsql_test json101-1.2 {
+  SELECT hex(json_array('String "\ Test'));
+} {5B22537472696E67205C225C5C2054657374225D}
+do_catchsql_test json101-1.3 {
+  SELECT json_array(1,printf('%.1000c','x'),x'abcd',3);
+} {1 {JSON cannot hold BLOB values}}
+do_catchsql_test json101-1.3b {
+  SELECT jsonb_array(1,printf('%.1000c','x'),x'abcd',3);
+} {1 {JSON cannot hold BLOB values}}
+do_execsql_test json101-1.4 {
+  SELECT json_array(-9223372036854775808,9223372036854775807,0,1,-1,
+                    0.0, 1.0, -1.0, -1e99, +2e100,
+                    'one','two','three',
+                    4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18,
+                    19, NULL, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
+                    'abcdefghijklmnopqrstuvwyxzABCDEFGHIJKLMNOPQRSTUVWXYZ',
+                    'abcdefghijklmnopqrstuvwyxzABCDEFGHIJKLMNOPQRSTUVWXYZ',
+                    'abcdefghijklmnopqrstuvwyxzABCDEFGHIJKLMNOPQRSTUVWXYZ',
+                    99);
+} {[-9223372036854775808,9223372036854775807,0,1,-1,0.0,1.0,-1.0,-1.0e+99,2.0e+100,"one","two","three",4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,null,21,22,23,24,25,26,27,28,29,30,31,"abcdefghijklmnopqrstuvwyxzABCDEFGHIJKLMNOPQRSTUVWXYZ","abcdefghijklmnopqrstuvwyxzABCDEFGHIJKLMNOPQRSTUVWXYZ","abcdefghijklmnopqrstuvwyxzABCDEFGHIJKLMNOPQRSTUVWXYZ",99]}
+do_execsql_test json101-1.4b {
+  SELECT json(jsonb_array(-9223372036854775808,9223372036854775807,0,1,-1,
+                    0.0, 1.0, -1.0, -1e99, +2e100,
+                    'one','two','three',
+                    4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18,
+                    19, NULL, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
+                    'abcdefghijklmnopqrstuvwyxzABCDEFGHIJKLMNOPQRSTUVWXYZ',
+                    'abcdefghijklmnopqrstuvwyxzABCDEFGHIJKLMNOPQRSTUVWXYZ',
+                    'abcdefghijklmnopqrstuvwyxzABCDEFGHIJKLMNOPQRSTUVWXYZ',
+                    99));
+} {[-9223372036854775808,9223372036854775807,0,1,-1,0.0,1.0,-1.0,-1.0e+99,2.0e+100,"one","two","three",4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,null,21,22,23,24,25,26,27,28,29,30,31,"abcdefghijklmnopqrstuvwyxzABCDEFGHIJKLMNOPQRSTUVWXYZ","abcdefghijklmnopqrstuvwyxzABCDEFGHIJKLMNOPQRSTUVWXYZ","abcdefghijklmnopqrstuvwyxzABCDEFGHIJKLMNOPQRSTUVWXYZ",99]}
+
+do_execsql_test json101-2.1 {
+  SELECT json_object('a',1,'b',2.5,'c',null,'d','String Test');
+} {{{"a":1,"b":2.5,"c":null,"d":"String Test"}}}
+do_execsql_test json101-2.1b {
+  SELECT json(jsonb_object('a',1,'b',2.5,'c',null,'d','String Test'));
+} {{{"a":1,"b":2.5,"c":null,"d":"String Test"}}}
+do_catchsql_test json101-2.2 {
+  SELECT json_object('a',printf('%.1000c','x'),2,2.5);
+} {1 {json_object() labels must be TEXT}}
+do_catchsql_test json101-2.2b {
+  SELECT jsonb_object('a',printf('%.1000c','x'),2,2.5);
+} {1 {json_object() labels must be TEXT}}
+do_execsql_test json101-2.2.2 {
+  SELECT json_object('a',json_array('xyx',77,4.5),'x',2.5);
+} {{{"a":["xyx",77,4.5],"x":2.5}}}
+do_execsql_test json101-2.2.2b {
+  SELECT json(jsonb_object('a',json_array('xyx',77,4.5),'x',2.5));
+} {{{"a":["xyx",77,4.5],"x":2.5}}}
+do_execsql_test json101-2.2.3 {
+  SELECT json_object('a',jsonb_array('xyx',77,4.5),'x',2.5);
+} {{{"a":["xyx",77,4.5],"x":2.5}}}
+do_execsql_test json101-2.2.3b {
+  SELECT json(jsonb_object('a',jsonb_array('xyx',77,4.5),'x',2.5));
+} {{{"a":["xyx",77,4.5],"x":2.5}}}
+do_catchsql_test json101-2.3 {
+  SELECT json_object('a',1,'b');
+} {1 {json_object() requires an even number of arguments}}
+do_catchsql_test json101-2.4 {
+  SELECT json_object('a',printf('%.1000c','x'),'b',x'abcd');
+} {1 {JSON cannot hold BLOB values}}
+do_execsql_test json101-2.5 {
+  SELECT json_object('a',printf('%.10c','x'),'b',jsonb_array(1,2,3));
+} {{{"a":"xxxxxxxxxx","b":[1,2,3]}}}
+
+do_execsql_test json101-3.1 {
+  SELECT json_replace('{"a":1,"b":2}','$.a','[3,4,5]');
+} {{{"a":"[3,4,5]","b":2}}}
+do_execsql_test json101-3.1b {
+  SELECT json(jsonb_replace('{"a":1,"b":2}','$.a','[3,4,5]'));
+} {{{"a":"[3,4,5]","b":2}}}
+do_execsql_test json101-3.2 {
+  SELECT json_replace('{"a":1,"b":2}','$.a',json('[3,4,5]'));
+} {{{"a":[3,4,5],"b":2}}}
+do_execsql_test json101-3.2b {
+  SELECT json_replace('{"a":1,"b":2}','$.a',jsonb('[3,4,5]'));
+} {{{"a":[3,4,5],"b":2}}}
+do_execsql_test json101-3.3 {
+  SELECT json_type(json_set('{"a":1,"b":2}','$.b','{"x":3,"y":4}'),'$.b');
+} {text}
+do_execsql_test json101-3.3b {
+  SELECT json_type(jsonb_set('{"a":1,"b":2}','$.b','{"x":3,"y":4}'),'$.b');
+} {text}
+do_execsql_test json101-3.4 {
+  SELECT json_type(json_set('{"a":1,"b":2}','$.b',json('{"x":3,"y":4}')),'$.b');
+} {object}
+do_execsql_test json101-3.4b {
+  SELECT json_type(jsonb_set('{"a":1,"b":2}','$.b',jsonb('{"x":3,"y":4}')),'$.b');
+} {object}
+ifcapable vtab {
+  do_execsql_test json101-3.5 {
+    SELECT fullkey, atom, '|' FROM json_tree(json_set('{}','$.x',123,'$.x',456));
+  } {{$} {} | {$.x} 456 |}
+  do_execsql_test json101-3.5b {
+    SELECT fullkey, atom, '|' FROM json_tree(jsonb_set('{}','$.x',123,'$.x',456));
+  } {{$} {} | {$.x} 456 |}
+}
+
+# Per rfc7159, any JSON value is allowed at the top level, and whitespace
+# is permitting before and/or after that value.
+#
+do_execsql_test json101-4.1 {
+  CREATE TABLE j1(x);
+  INSERT INTO j1(x)
+   VALUES('true'),('false'),('null'),('123'),('-234'),('34.5e+6'),
+         ('""'),('"\""'),('"\\"'),('"abcdefghijlmnopqrstuvwxyz"'),
+         ('[]'),('{}'),('[true,false,null,123,-234,34.5e+6,{},[]]'),
+         ('{"a":true,"b":{"c":false}}');
+  SELECT * FROM j1 WHERE NOT json_valid(x);
+} {}
+do_execsql_test json101-4.2 {
+  SELECT * FROM j1 WHERE NOT json_valid(char(0x20,0x09,0x0a,0x0d)||x);
+} {}
+do_execsql_test json101-4.3 {
+  SELECT * FROM j1 WHERE NOT json_valid(x||char(0x20,0x09,0x0a,0x0d));
+} {}
+
+# But an empty string, or a string of pure whitespace is not valid JSON.
+#
+do_execsql_test json101-4.4 {
+  SELECT json_valid(''), json_valid(char(0x20,0x09,0x0a,0x0d));
+} {0 0}
+
+# json_remove() and similar functions with no edit operations return their
+# input unchanged.
+#
+do_execsql_test json101-4.5 {
+  SELECT x FROM j1 WHERE json_remove(x)<>x;
+} {}
+do_execsql_test json101-4.6 {
+  SELECT x FROM j1 WHERE json_replace(x)<>x;
+} {}
+do_execsql_test json101-4.7 {
+  SELECT x FROM j1 WHERE json_set(x)<>x;
+} {}
+do_execsql_test json101-4.8 {
+  SELECT x FROM j1 WHERE json_insert(x)<>x;
+} {}
+do_execsql_test json101-4.9 {
+  SELECT json_insert('{"a":1}','$.b',CAST(x'0000' AS text));
+} {{{"a":1,"b":"\u0000\u0000"}}}
+
+# json_extract(JSON,'$') will return objects and arrays without change.
+#
+do_execsql_test json101-4.10 {
+  SELECT count(*) FROM j1 WHERE json_type(x) IN ('object','array');
+  SELECT x FROM j1
+   WHERE json_extract(x,'$')<>x
+     AND json_type(x) IN ('object','array');
+} {4}
+do_execsql_test json101-4.10b {
+  CREATE TABLE j1b AS SELECT jsonb(x) AS "x" FROM j1;
+  SELECT count(*) FROM j1b WHERE json_type(x) IN ('object','array');
+  SELECT json(x) FROM j1b
+   WHERE json_extract(x,'$')<>json(x)
+     AND json_type(x) IN ('object','array');
+} {4}
+
+do_execsql_test json101-5.1 {
+  CREATE TABLE j2(id INTEGER PRIMARY KEY, json, src);
+  INSERT INTO j2(id,json,src)
+  VALUES(1,'{
+    "firstName": "John",
+    "lastName": "Smith",
+    "isAlive": true,
+    "age": 25,
+    "address": {
+      "streetAddress": "21 2nd Street",
+      "city": "New York",
+      "state": "NY",
+      "postalCode": "10021-3100"
+    },
+    "phoneNumbers": [
+      {
+        "type": "home",
+        "number": "212 555-1234"
+      },
+      {
+        "type": "office",
+        "number": "646 555-4567"
+      }
+    ],
+    "children": [],
+    "spouse": null
+  }','https://en.wikipedia.org/wiki/JSON');
+  INSERT INTO j2(id,json,src)
+  VALUES(2, '{
+	"id": "0001",
+	"type": "donut",
+	"name": "Cake",
+	"ppu": 0.55,
+	"batters":
+		{
+			"batter":
+				[
+					{ "id": "1001", "type": "Regular" },
+					{ "id": "1002", "type": "Chocolate" },
+					{ "id": "1003", "type": "Blueberry" },
+					{ "id": "1004", "type": "Devil''s Food" }
+				]
+		},
+	"topping":
+		[
+			{ "id": "5001", "type": "None" },
+			{ "id": "5002", "type": "Glazed" },
+			{ "id": "5005", "type": "Sugar" },
+			{ "id": "5007", "type": "Powdered Sugar" },
+			{ "id": "5006", "type": "Chocolate with Sprinkles" },
+			{ "id": "5003", "type": "Chocolate" },
+			{ "id": "5004", "type": "Maple" }
+		]
+   }','https://adobe.github.io/Spry/samples/data_region/JSONDataSetSample.html');
+   INSERT INTO j2(id,json,src)
+   VALUES(3,'[
+	{
+		"id": "0001",
+		"type": "donut",
+		"name": "Cake",
+		"ppu": 0.55,
+		"batters":
+			{
+				"batter":
+					[
+						{ "id": "1001", "type": "Regular" },
+						{ "id": "1002", "type": "Chocolate" },
+						{ "id": "1003", "type": "Blueberry" },
+						{ "id": "1004", "type": "Devil''s Food" }
+					]
+			},
+		"topping":
+			[
+				{ "id": "5001", "type": "None" },
+				{ "id": "5002", "type": "Glazed" },
+				{ "id": "5005", "type": "Sugar" },
+				{ "id": "5007", "type": "Powdered Sugar" },
+				{ "id": "5006", "type": "Chocolate with Sprinkles" },
+				{ "id": "5003", "type": "Chocolate" },
+				{ "id": "5004", "type": "Maple" }
+			]
+	},
+	{
+		"id": "0002",
+		"type": "donut",
+		"name": "Raised",
+		"ppu": 0.55,
+		"batters":
+			{
+				"batter":
+					[
+						{ "id": "1001", "type": "Regular" }
+					]
+			},
+		"topping":
+			[
+				{ "id": "5001", "type": "None" },
+				{ "id": "5002", "type": "Glazed" },
+				{ "id": "5005", "type": "Sugar" },
+				{ "id": "5003", "type": "Chocolate" },
+				{ "id": "5004", "type": "Maple" }
+			]
+	},
+	{
+		"id": "0003",
+		"type": "donut",
+		"name": "Old Fashioned",
+		"ppu": 0.55,
+		"batters":
+			{
+				"batter":
+					[
+						{ "id": "1001", "type": "Regular" },
+						{ "id": "1002", "type": "Chocolate" }
+					]
+			},
+		"topping":
+			[
+				{ "id": "5001", "type": "None" },
+				{ "id": "5002", "type": "Glazed" },
+				{ "id": "5003", "type": "Chocolate" },
+				{ "id": "5004", "type": "Maple" }
+			]
+	}
+   ]','https://adobe.github.io/Spry/samples/data_region/JSONDataSetSample.html');
+   SELECT count(*) FROM j2;
+   CREATE TABLE j2b(id INTEGER PRIMARY KEY, json, src);
+   INSERT INTO J2b(id,json,src) SELECT id, jsonb(json), src FROM j2;
+   SELECT count(*) FROM j2b;
+} {3 3}
+
+do_execsql_test json101-5.2 {
+  SELECT id, json_valid(json), json_type(json), '|' FROM j2 ORDER BY id;
+} {1 1 object | 2 1 object | 3 1 array |}
+do_execsql_test json101-5.2b {
+  SELECT id, json_valid(json,5), json_type(json), '|' FROM j2b ORDER BY id;
+} {1 1 object | 2 1 object | 3 1 array |}
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+# fullkey is always the same as path+key (with appropriate formatting)
+#
+do_execsql_test json101-5.3 {
+  SELECT j2.rowid, jx.rowid, fullkey, path, key
+    FROM j2, json_tree(j2.json) AS jx
+   WHERE fullkey!=(path || CASE WHEN typeof(key)=='integer' THEN '['||key||']'
+                                ELSE '.'||key END);
+} {}
+do_execsql_test json101-5.3b {
+  SELECT j2b.rowid, jx.rowid, fullkey, path, key
+    FROM j2b, json_tree(j2b.json) AS jx
+   WHERE fullkey!=(path || CASE WHEN typeof(key)=='integer' THEN '['||key||']'
+                                ELSE '.'||key END);
+} {}
+do_execsql_test json101-5.4 {
+  SELECT j2.rowid, jx.rowid, fullkey, path, key
+    FROM j2, json_each(j2.json) AS jx
+   WHERE fullkey!=(path || CASE WHEN typeof(key)=='integer' THEN '['||key||']'
+                                ELSE '.'||key END);
+} {}
+
+
+# Verify that the json_each.json and json_tree.json output is always the
+# same as input.
+#
+do_execsql_test json101-5.5 {
+  SELECT j2.rowid, jx.rowid, fullkey, path, key
+    FROM j2, json_each(j2.json) AS jx
+   WHERE jx.json<>j2.json;
+} {}
+do_execsql_test json101-5.6 {
+  SELECT j2.rowid, jx.rowid, fullkey, path, key
+    FROM j2, json_tree(j2.json) AS jx
+   WHERE jx.json<>j2.json;
+} {}
+do_execsql_test json101-5.7 {
+  SELECT j2.rowid, jx.rowid, fullkey, path, key
+    FROM j2, json_each(j2.json) AS jx
+   WHERE jx.value<>jx.atom AND type NOT IN ('array','object');
+} {}
+do_execsql_test json101-5.8 {
+  SELECT j2.rowid, jx.rowid, fullkey, path, key
+    FROM j2, json_tree(j2.json) AS jx
+   WHERE jx.value<>jx.atom AND type NOT IN ('array','object');
+} {}
+
+# 2024-02-16 https://sqlite.org/forum/forumpost/ecb94cd210
+# Regression in json_tree()/json_each().  The value column
+# should have the "J" subtype if the value is an array or
+# object.
+#
+do_execsql_test json101-5.10 {
+  SELECT json_insert('{}','$.a',value) FROM json_tree('[1,2,3]') WHERE atom IS NULL;
+} {{{"a":[1,2,3]}}}
+#        ^^^^^^^--- In double-quotes, a string literal, prior to bug fix
+
+do_execsql_test json101-5.11 {
+  SELECT json_insert('{}','$.a',value) FROM json_tree('"[1,2,3]"');
+} {{{"a":"[1,2,3]"}}}
+
+do_execsql_test json101-6.1 {
+  SELECT json_valid('{"a":55,"b":72,}');
+} {0}
+do_execsql_test json101-6.2 {
+  SELECT json_error_position('{"a":55,"b":72,}');
+} {0}
+do_execsql_test json101-6.3 {
+  SELECT json_valid(json('{"a":55,"b":72,}'));
+} {1}
+do_execsql_test json101-6.4 {
+  SELECT json_valid('{"a":55,"b":72 , }');
+} {0}
+do_execsql_test json101-6.5 {
+  SELECT json_error_position('{"a":55,"b":72 , }');
+} {0}
+do_execsql_test json101-6.6 {
+  SELECT json_error_position('{"a":55,"b":72,,}');
+} {16}
+do_execsql_test json101-6.7 {
+  SELECT json_valid('{"a":55,"b":72}');
+} {1}
+do_execsql_test json101-6.8 {
+  SELECT json_error_position('["a",55,"b",72,]');
+} {0}
+do_execsql_test json101-6.9 {
+  SELECT json_error_position('["a",55,"b",72 , ]');
+} {0}
+do_execsql_test json101-6.10 {
+  SELECT json_error_position('["a",55,"b",72,,]');
+} {16}
+do_execsql_test json101-6.11 {
+  SELECT json_valid('["a",55,"b",72]');
+} {1}
+
+# White-space tests.  Note that form-feed is not white-space in JSON.
+# ticket [57eec374ae1d0a1d4a23077a95f4e173fe269113]
+# 
+foreach {tn isvalid ws} {
+  7.1  1  char(0x20)
+  7.2  1  char(0x09)
+  7.3  1  char(0x0A)
+  7.4  1  char(0x0D)
+  7.5  0  char(0x0C)
+  7.6  1  char(0x20,0x09,0x0a,0x0d,0x20)
+  7.7  0  char(0x20,0x09,0x0a,0x0c,0x0d,0x20)
+} {
+  do_execsql_test json101-$tn.1 \
+    "SELECT json_valid(printf('%s{%s\"x\"%s:%s9%s}%s',
+         $::ws,$::ws,$::ws,$::ws,$::ws,$::ws));" \
+  $isvalid
+}
+
+# Ticket https://www.sqlite.org/src/info/ad2559db380abf8e
+# Control characters must be escaped in JSON strings.
+#
+do_execsql_test json101-8.1 {
+  DROP TABLE IF EXISTS t8;
+  CREATE TABLE t8(a,b);
+  INSERT INTO t8(a) VALUES('abc' || char(1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35) || 'xyz');
+  UPDATE t8 SET b=json_array(a);
+  SELECT b FROM t8;
+} {{["abc\u0001\u0002\u0003\u0004\u0005\u0006\u0007\b\t\n\u000b\f\r\u000e\u000f\u0010\u0011\u0012\u0013\u0014\u0015\u0016\u0017\u0018\u0019\u001a\u001b\u001c\u001d\u001e\u001f !\"#xyz"]}}
+do_execsql_test json101-8.1b {
+  DROP TABLE IF EXISTS t8;
+  CREATE TABLE t8(a,b);
+  INSERT INTO t8(a) VALUES('abc' || char(1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35) || 'xyz');
+  UPDATE t8 SET b=jsonb_array(a);
+  SELECT json(b) FROM t8;
+} {{["abc\u0001\u0002\u0003\u0004\u0005\u0006\u0007\b\t\n\u000b\f\r\u000e\u000f\u0010\u0011\u0012\u0013\u0014\u0015\u0016\u0017\u0018\u0019\u001a\u001b\u001c\u001d\u001e\u001f !\"#xyz"]}}
+do_execsql_test json101-8.2 {
+  SELECT a=json_extract(b,'$[0]') FROM t8;
+} {1}
+
+# 2017-04-12.  Regression reported on the mailing list by Rolf Ade
+#
+do_execsql_test json101-8.3 {
+  SELECT json_valid(char(0x22,0xe4,0x22));
+} {1}
+do_execsql_test json101-8.4 {
+  SELECT unicode(json_extract(char(0x22,228,0x22),'$'));
+} {228}
+
+# The json_quote() function transforms an SQL value into a JSON value.
+# String values are quoted and interior quotes are escaped.  NULL values
+# are rendered as the unquoted string "null".
+#
+do_execsql_test json101-9.1 {
+  SELECT json_quote('abc"xyz');
+} {{"abc\"xyz"}}
+do_execsql_test json101-9.2 {
+  SELECT json_quote(3.14159);
+} {3.14159}
+do_execsql_test json101-9.3 {
+  SELECT json_quote(12345);
+} {12345}
+do_execsql_test json101-9.4 {
+  SELECT json_quote(null);
+} {"null"}
+do_catchsql_test json101-9.5 {
+  SELECT json_quote(x'3031323334');
+} {1 {JSON cannot hold BLOB values}}
+do_catchsql_test json101-9.6 {
+  SELECT json_quote(123,456)
+} {1 {wrong number of arguments to function json_quote()}}
+do_catchsql_test json101-9.7 {
+  SELECT json_quote()
+} {1 {wrong number of arguments to function json_quote()}}
+
+# Make sure only valid backslash-escapes are accepted.
+#
+do_execsql_test json101-10.1 {
+  SELECT json_valid('" \  "');
+} {0}
+do_execsql_test json101-10.2 {
+  SELECT json_valid('" \! "');
+} {0}
+do_execsql_test json101-10.3 {
+  SELECT json_valid('" \" "');
+} {1}
+do_execsql_test json101-10.4 {
+  SELECT json_valid('" \# "');
+} {0}
+do_execsql_test json101-10.5 {
+  SELECT json_valid('" \$ "');
+} {0}
+do_execsql_test json101-10.6 {
+  SELECT json_valid('" \% "');
+} {0}
+do_execsql_test json101-10.7 {
+  SELECT json_valid('" \& "');
+} {0}
+do_execsql_test json101-10.8 {
+  SELECT json_valid('" \'' "');
+} {0}
+do_execsql_test json101-10.9 {
+  SELECT json_valid('" \( "');
+} {0}
+do_execsql_test json101-10.10 {
+  SELECT json_valid('" \) "');
+} {0}
+do_execsql_test json101-10.11 {
+  SELECT json_valid('" \* "');
+} {0}
+do_execsql_test json101-10.12 {
+  SELECT json_valid('" \+ "');
+} {0}
+do_execsql_test json101-10.13 {
+  SELECT json_valid('" \, "');
+} {0}
+do_execsql_test json101-10.14 {
+  SELECT json_valid('" \- "');
+} {0}
+do_execsql_test json101-10.15 {
+  SELECT json_valid('" \. "');
+} {0}
+do_execsql_test json101-10.16 {
+  SELECT json_valid('" \/ "');
+} {1}
+do_execsql_test json101-10.17 {
+  SELECT json_valid('" \0 "');
+} {0}
+do_execsql_test json101-10.18 {
+  SELECT json_valid('" \1 "');
+} {0}
+do_execsql_test json101-10.19 {
+  SELECT json_valid('" \2 "');
+} {0}
+do_execsql_test json101-10.20 {
+  SELECT json_valid('" \3 "');
+} {0}
+do_execsql_test json101-10.21 {
+  SELECT json_valid('" \4 "');
+} {0}
+do_execsql_test json101-10.22 {
+  SELECT json_valid('" \5 "');
+} {0}
+do_execsql_test json101-10.23 {
+  SELECT json_valid('" \6 "');
+} {0}
+do_execsql_test json101-10.24 {
+  SELECT json_valid('" \7 "');
+} {0}
+do_execsql_test json101-10.25 {
+  SELECT json_valid('" \8 "');
+} {0}
+do_execsql_test json101-10.26 {
+  SELECT json_valid('" \9 "');
+} {0}
+do_execsql_test json101-10.27 {
+  SELECT json_valid('" \: "');
+} {0}
+do_execsql_test json101-10.28 {
+  SELECT json_valid('" \; "');
+} {0}
+do_execsql_test json101-10.29 {
+  SELECT json_valid('" \< "');
+} {0}
+do_execsql_test json101-10.30 {
+  SELECT json_valid('" \= "');
+} {0}
+do_execsql_test json101-10.31 {
+  SELECT json_valid('" \> "');
+} {0}
+do_execsql_test json101-10.32 {
+  SELECT json_valid('" \? "');
+} {0}
+do_execsql_test json101-10.33 {
+  SELECT json_valid('" \@ "');
+} {0}
+do_execsql_test json101-10.34 {
+  SELECT json_valid('" \A "');
+} {0}
+do_execsql_test json101-10.35 {
+  SELECT json_valid('" \B "');
+} {0}
+do_execsql_test json101-10.36 {
+  SELECT json_valid('" \C "');
+} {0}
+do_execsql_test json101-10.37 {
+  SELECT json_valid('" \D "');
+} {0}
+do_execsql_test json101-10.38 {
+  SELECT json_valid('" \E "');
+} {0}
+do_execsql_test json101-10.39 {
+  SELECT json_valid('" \F "');
+} {0}
+do_execsql_test json101-10.40 {
+  SELECT json_valid('" \G "');
+} {0}
+do_execsql_test json101-10.41 {
+  SELECT json_valid('" \H "');
+} {0}
+do_execsql_test json101-10.42 {
+  SELECT json_valid('" \I "');
+} {0}
+do_execsql_test json101-10.43 {
+  SELECT json_valid('" \J "');
+} {0}
+do_execsql_test json101-10.44 {
+  SELECT json_valid('" \K "');
+} {0}
+do_execsql_test json101-10.45 {
+  SELECT json_valid('" \L "');
+} {0}
+do_execsql_test json101-10.46 {
+  SELECT json_valid('" \M "');
+} {0}
+do_execsql_test json101-10.47 {
+  SELECT json_valid('" \N "');
+} {0}
+do_execsql_test json101-10.48 {
+  SELECT json_valid('" \O "');
+} {0}
+do_execsql_test json101-10.49 {
+  SELECT json_valid('" \P "');
+} {0}
+do_execsql_test json101-10.50 {
+  SELECT json_valid('" \Q "');
+} {0}
+do_execsql_test json101-10.51 {
+  SELECT json_valid('" \R "');
+} {0}
+do_execsql_test json101-10.52 {
+  SELECT json_valid('" \S "');
+} {0}
+do_execsql_test json101-10.53 {
+  SELECT json_valid('" \T "');
+} {0}
+do_execsql_test json101-10.54 {
+  SELECT json_valid('" \U "');
+} {0}
+do_execsql_test json101-10.55 {
+  SELECT json_valid('" \V "');
+} {0}
+do_execsql_test json101-10.56 {
+  SELECT json_valid('" \W "');
+} {0}
+do_execsql_test json101-10.57 {
+  SELECT json_valid('" \X "');
+} {0}
+do_execsql_test json101-10.58 {
+  SELECT json_valid('" \Y "');
+} {0}
+do_execsql_test json101-10.59 {
+  SELECT json_valid('" \Z "');
+} {0}
+do_execsql_test json101-10.60 {
+  SELECT json_valid('" \[ "');
+} {0}
+do_execsql_test json101-10.61 {
+  SELECT json_valid('" \\ "');
+} {1}
+do_execsql_test json101-10.62 {
+  SELECT json_valid('" \] "');
+} {0}
+do_execsql_test json101-10.63 {
+  SELECT json_valid('" \^ "');
+} {0}
+do_execsql_test json101-10.64 {
+  SELECT json_valid('" \_ "');
+} {0}
+do_execsql_test json101-10.65 {
+  SELECT json_valid('" \` "');
+} {0}
+do_execsql_test json101-10.66 {
+  SELECT json_valid('" \a "');
+} {0}
+do_execsql_test json101-10.67 {
+  SELECT json_valid('" \b "');
+} {1}
+do_execsql_test json101-10.68 {
+  SELECT json_valid('" \c "');
+} {0}
+do_execsql_test json101-10.69 {
+  SELECT json_valid('" \d "');
+} {0}
+do_execsql_test json101-10.70 {
+  SELECT json_valid('" \e "');
+} {0}
+do_execsql_test json101-10.71 {
+  SELECT json_valid('" \f "');
+} {1}
+do_execsql_test json101-10.72 {
+  SELECT json_valid('" \g "');
+} {0}
+do_execsql_test json101-10.73 {
+  SELECT json_valid('" \h "');
+} {0}
+do_execsql_test json101-10.74 {
+  SELECT json_valid('" \i "');
+} {0}
+do_execsql_test json101-10.75 {
+  SELECT json_valid('" \j "');
+} {0}
+do_execsql_test json101-10.76 {
+  SELECT json_valid('" \k "');
+} {0}
+do_execsql_test json101-10.77 {
+  SELECT json_valid('" \l "');
+} {0}
+do_execsql_test json101-10.78 {
+  SELECT json_valid('" \m "');
+} {0}
+do_execsql_test json101-10.79 {
+  SELECT json_valid('" \n "');
+} {1}
+do_execsql_test json101-10.80 {
+  SELECT json_valid('" \o "');
+} {0}
+do_execsql_test json101-10.81 {
+  SELECT json_valid('" \p "');
+} {0}
+do_execsql_test json101-10.82 {
+  SELECT json_valid('" \q "');
+} {0}
+do_execsql_test json101-10.83 {
+  SELECT json_valid('" \r "');
+} {1}
+do_execsql_test json101-10.84 {
+  SELECT json_valid('" \s "');
+} {0}
+do_execsql_test json101-10.85 {
+  SELECT json_valid('" \t "');
+} {1}
+do_execsql_test json101-10.86.0 {
+  SELECT json_valid('" \u "');
+} {0}
+do_execsql_test json101-10.86.1 {
+  SELECT json_valid('" \ua "');
+} {0}
+do_execsql_test json101-10.86.2 {
+  SELECT json_valid('" \uab "');
+} {0}
+do_execsql_test json101-10.86.3 {
+  SELECT json_valid('" \uabc "');
+} {0}
+do_execsql_test json101-10.86.4 {
+  SELECT json_valid('" \uabcd "');
+} {1}
+do_execsql_test json101-10.86.5 {
+  SELECT json_valid('" \uFEDC "');
+} {1}
+do_execsql_test json101-10.86.6 {
+  SELECT json_valid('" \u1234 "');
+} {1}
+do_execsql_test json101-10.87 {
+  SELECT json_valid('" \v "');
+} {0}
+do_execsql_test json101-10.88 {
+  SELECT json_valid('" \w "');
+} {0}
+do_execsql_test json101-10.89 {
+  SELECT json_valid('" \x "');
+} {0}
+do_execsql_test json101-10.90 {
+  SELECT json_valid('" \y "');
+} {0}
+do_execsql_test json101-10.91 {
+  SELECT json_valid('" \z "');
+} {0}
+do_execsql_test json101-10.92 {
+  SELECT json_valid('" \{ "');
+} {0}
+do_execsql_test json101-10.93 {
+  SELECT json_valid('" \| "');
+} {0}
+do_execsql_test json101-10.94 {
+  SELECT json_valid('" \} "');
+} {0}
+do_execsql_test json101-10.95 {
+  SELECT json_valid('" \~ "');
+} {0}
+
+#--------------------------------------------------------------------------
+# 2017-04-11.  https://www.sqlite.org/src/info/981329adeef51011
+# Stack overflow on deeply nested JSON.
+#
+# The following tests confirm that deeply nested JSON is considered invalid.
+#
+do_execsql_test json101-11.0 {
+  /* Shallow enough to be parsed */
+  SELECT json_valid(printf('%.1000c0%.1000c','[',']'));
+} {1}
+do_execsql_test json101-11.1 {
+  /* Too deep by one */
+  SELECT json_valid(printf('%.1001c0%.1001c','[',']'));
+} {0}
+do_execsql_test json101-11.2 {
+  /* Shallow enough to be parsed { */
+  SELECT json_valid(replace(printf('%.1000c0%.1000c','[','}'),'[','{"a":'));
+  /* } */
+} {1}
+do_execsql_test json101-11.3 {
+  /* Too deep by one { */
+  SELECT json_valid(replace(printf('%.1001c0%.1001c','[','}'),'[','{"a":'));
+  /* } */
+} {0}
+
+# 2017-10-27.  Demonstrate the ability to access an element from
+# a json structure even though the element name constains a "."
+# character, by quoting the element name in the path.
+#
+do_execsql_test json101-12.100 {
+  CREATE TABLE t12(x);
+  INSERT INTO t12(x) VALUES(
+    '{"settings":
+        {"layer2":
+           {"hapax.legomenon":
+              {"forceDisplay":true,
+               "transliterate":true,
+               "add.footnote":true,
+               "summary.report":true},
+            "dis.legomenon":
+              {"forceDisplay":true,
+               "transliterate":false,
+               "add.footnote":false,
+               "summary.report":true},
+            "tris.legomenon":
+              {"forceDisplay":true,
+               "transliterate":false,
+               "add.footnote":false,
+               "summary.report":false}
+           }
+        }
+     }');
+} {}
+
+do_execsql_test json101-12.110 {
+  SELECT json_remove(x, '$.settings.layer2."dis.legomenon".forceDisplay')
+    FROM t12;
+} {{{"settings":{"layer2":{"hapax.legomenon":{"forceDisplay":true,"transliterate":true,"add.footnote":true,"summary.report":true},"dis.legomenon":{"transliterate":false,"add.footnote":false,"summary.report":true},"tris.legomenon":{"forceDisplay":true,"transliterate":false,"add.footnote":false,"summary.report":false}}}}}}
+do_execsql_test json101-12.110b {
+  SELECT json_remove(jsonb(x), '$.settings.layer2."dis.legomenon".forceDisplay')
+    FROM t12;
+} {{{"settings":{"layer2":{"hapax.legomenon":{"forceDisplay":true,"transliterate":true,"add.footnote":true,"summary.report":true},"dis.legomenon":{"transliterate":false,"add.footnote":false,"summary.report":true},"tris.legomenon":{"forceDisplay":true,"transliterate":false,"add.footnote":false,"summary.report":false}}}}}}
+do_execsql_test json101-12.120 {
+  SELECT json_extract(x, '$.settings.layer2."tris.legomenon"."summary.report"')
+    FROM t12;
+} {0}
+do_execsql_test json101-12.120b {
+  SELECT json_extract(jsonb(x), '$.settings.layer2."tris.legomenon"."summary.report"')
+    FROM t12;
+} {0}
+
+# 2018-01-26
+# ticket https://www.sqlite.org/src/tktview/80177f0c226ff54f6ddd41
+# Make sure the query planner knows about the arguments to table-valued functions.
+#
+do_execsql_test json101-13.100 {
+  DROP TABLE IF EXISTS t1;
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t1(id, json);
+  INSERT INTO t1(id,json) VALUES(1,'{"items":[3,5]}');
+  CREATE TABLE t2(id, json);
+  INSERT INTO t2(id,json) VALUES(2,'{"value":2}');
+  INSERT INTO t2(id,json) VALUES(3,'{"value":3}');
+  INSERT INTO t2(id,json) VALUES(4,'{"value":4}');
+  INSERT INTO t2(id,json) VALUES(5,'{"value":5}');
+  INSERT INTO t2(id,json) VALUES(6,'{"value":6}');
+  SELECT * FROM t1 CROSS JOIN t2
+   WHERE EXISTS(SELECT 1 FROM json_each(t1.json,'$.items') AS Z
+                 WHERE Z.value==t2.id);
+} {1 {{"items":[3,5]}} 3 {{"value":3}} 1 {{"items":[3,5]}} 5 {{"value":5}}}
+do_execsql_test json101-13.110 {
+  SELECT * FROM t2 CROSS JOIN t1
+   WHERE EXISTS(SELECT 1 FROM json_each(t1.json,'$.items') AS Z
+                 WHERE Z.value==t2.id);
+} {3 {{"value":3}} 1 {{"items":[3,5]}} 5 {{"value":5}} 1 {{"items":[3,5]}}}
+
+# 2018-05-16
+# Incorrect fullkey output from json_each()
+# when the input JSON is not an array or object.
+#
+do_execsql_test json101-14.100 {
+  SELECT fullkey FROM json_each('123');
+} {$}
+do_execsql_test json101-14.110 {
+  SELECT fullkey FROM json_each('123.56');
+} {$}
+do_execsql_test json101-14.120 {
+  SELECT fullkey FROM json_each('"hello"');
+} {$}
+do_execsql_test json101-14.130 {
+  SELECT fullkey FROM json_each('null');
+} {$}
+do_execsql_test json101-14.140 {
+  SELECT fullkey FROM json_tree('123');
+} {$}
+do_execsql_test json101-14.150 {
+  SELECT fullkey FROM json_tree('123.56');
+} {$}
+do_execsql_test json101-14.160 {
+  SELECT fullkey FROM json_tree('"hello"');
+} {$}
+do_execsql_test json101-14.170 {
+  SELECT fullkey FROM json_tree('null');
+} {$}
+
+# 2018-12-03
+# Make sure the table-valued functions contained within parentheses
+# work correctly.
+#
+# Bug reported via private email. See TH3 for more information.
+#
+do_execsql_test json101-15.100 {
+  SELECT * FROM JSON_EACH('{"a":1, "b":2}');
+} {a 1 integer 1 1 {} {$.a} {$} b 2 integer 2 5 {} {$.b} {$}}
+do_execsql_test json101-15.110 {
+  SELECT xyz.* FROM JSON_EACH('{"a":1, "b":2}') AS xyz;
+} {a 1 integer 1 1 {} {$.a} {$} b 2 integer 2 5 {} {$.b} {$}}
+do_execsql_test json101-15.120 {
+  SELECT * FROM (JSON_EACH('{"a":1, "b":2}'));
+} {a 1 integer 1 1 {} {$.a} {$} b 2 integer 2 5 {} {$.b} {$}}
+do_execsql_test json101-15.130 {
+  SELECT xyz.* FROM (JSON_EACH('{"a":1, "b":2}')) AS xyz;
+} {a 1 integer 1 1 {} {$.a} {$} b 2 integer 2 5 {} {$.b} {$}}
+
+# 2019-11-10
+# Mailing list bug report on the handling of surrogate pairs
+# in JSON.
+#
+do_execsql_test json101-16.10 {
+  SELECT length(json_extract('"abc\uD834\uDD1Exyz"','$'));
+} {7}
+do_execsql_test json101-16.20 {
+  SELECT length(json_extract('"\uD834\uDD1E"','$'));
+} {1}
+do_execsql_test json101-16.30 {
+  SELECT unicode(json_extract('"\uD834\uDD1E"','$'));
+} {119070}
+
+# 2022-01-30 dbsqlfuzz 4678cf825d27f87c9b8343720121e12cf944b71a
+do_execsql_test json101-17.1 {
+  DROP TABLE IF EXISTS t1;
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t1(a,b,c);
+  CREATE TABLE t2(d);
+  SELECT * FROM t1 LEFT JOIN t2 ON (SELECT b FROM json_each ORDER BY 1);
+} {}
+
+# 2022-04-04 forum post https://sqlite.org/forum/forumpost/c082aeab43
+do_execsql_test json101-18.1 {
+  SELECT json_valid('{"":5}');
+} {1}
+do_execsql_test json101-18.2 {
+  SELECT json_extract('{"":5}', '$.""');
+} {5}
+do_execsql_test json101-18.3 {
+  SELECT json_extract('[3,{"a":4,"":[5,{"hi":6},7]},8]', '$[1].""[1].hi');
+} {6}
+do_execsql_test json101-18.4 {
+  SELECT json_extract('[3,{"a":4,"":[5,{"hi":6},7]},8]', '$[1].""[1]."hi"');
+} {6}
+do_catchsql_test json101-18.5 {
+  SELECT json_extract('{"":8}', '$.');
+} {1 {bad JSON path: '$.'}}
+
+# 2022-08-29 https://sqlite.org/forum/forumpost/9b9e4716c0d7bbd1
+# This is not a problem specifically with JSON functions.  It is
+# a problem with transaction control.  But the json() function makes
+# the problem more easily accessible, so it is tested here.
+#
+do_execsql_test json101-19.1 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(x);
+} {}
+do_catchsql_test json101-19.2 {
+  BEGIN;
+  INSERT INTO t1 VALUES(0), (json('not-valid-json'));
+} {1 {malformed JSON}}
+do_execsql_test json101-19.3 {
+  COMMIT;
+  SELECT * FROM t1;
+} {}
+
+# 2023-03-17 positive and negative infinities
+#
+do_execsql_test json101-20.1 {
+  SELECT json_object('a',2e370,'b',-3e380);
+} {{{"a":9.0e+999,"b":-9.0e+999}}}
+do_execsql_test json101-20.2 {
+  SELECT json_object('a',2e370,'b',-3e380)->>'a';
+} Inf
+do_execsql_test json101-20.3 {
+  SELECT json_object('a',2e370,'b',-3e380)->>'b';
+} {-Inf}
+
+# 2023-05-02 https://sqlite.org/forum/forumpost/06c6334412
+# JSON functions should normally return NULL when given
+# a NULL value as the JSON input.
+#
+db null NULL
+if {[db exists {SELECT * FROM pragma_compile_options WHERE compile_options LIKE '%legacy_json_valid%'}]} {
+  do_execsql_test json101-21.1-legacy {
+    SELECT json_valid(NULL);
+  } 0
+} else {
+  do_execsql_test json101-21.1-correct {
+    SELECT json_valid(NULL);
+  } NULL
+}
+do_execsql_test json101-21.2 {
+  SELECT json_error_position(NULL);
+} NULL
+do_execsql_test json101-21.3 {
+  SELECT json(NULL);
+} NULL
+do_execsql_test json101-21.4 {
+  SELECT json_array(NULL);
+} {[null]}
+do_execsql_test json101-21.5 {
+  SELECT json_extract(NULL);
+} NULL
+do_execsql_test json101-21.6 {
+  SELECT json_insert(NULL,'$',123);
+} NULL
+do_execsql_test json101-21.7 {
+  SELECT NULL->0;
+} NULL
+do_execsql_test json101-21.8 {
+  SELECT NULL->>0;
+} NULL
+do_execsql_test json101-21.9 {
+  SELECT '{a:5}'->NULL;
+} NULL
+do_execsql_test json101-21.10 {
+  SELECT '{a:5}'->>NULL;
+} NULL
+do_catchsql_test json101-21.11 {
+  SELECT json_object(NULL,5);
+} {1 {json_object() labels must be TEXT}}
+do_execsql_test json101-21.12 {
+  SELECT json_patch(NULL,'{a:5}');
+} NULL
+do_execsql_test json101-21.13 {
+  SELECT json_patch('{a:5}',NULL);
+} NULL
+do_execsql_test json101-21.14 {
+  SELECT json_patch(NULL,NULL);
+} NULL
+do_execsql_test json101-21.15 {
+  SELECT json_remove(NULL,'$');
+} NULL
+do_execsql_test json101-21.16 {
+  SELECT json_remove('{a:5,b:7}',NULL);
+} NULL
+do_execsql_test json101-21.17 {
+  SELECT json_replace(NULL,'$.a',123);
+} NULL
+do_execsql_test json101-21.18 {
+  SELECT json_replace('{a:5,b:7}',NULL,NULL);
+} {{{"a":5,"b":7}}}
+do_execsql_test json101-21.19 {
+  SELECT json_set(NULL,'$.a',123);
+} NULL
+do_execsql_test json101-21.20 {
+  SELECT json_set('{a:5,b:7}',NULL,NULL);
+} {{{"a":5,"b":7}}}
+do_execsql_test json101-21.21 {
+  SELECT json_type(NULL);
+} NULL
+do_execsql_test json101-21.22 {
+  SELECT json_type('{a:5,b:7}',NULL);
+} NULL
+do_execsql_test json101-21.23 {
+  SELECT json_quote(NULL);
+} null
+do_execsql_test json101-21.24 {
+  SELECT count(*) FROM json_each(NULL);
+} 0
+do_execsql_test json101-21.25 {
+  SELECT count(*) FROM json_tree(NULL);
+} 0
+do_execsql_test json101-21.26 {
+  WITH c(x) AS (VALUES(1),(2.0),(NULL),('three'))
+  SELECT json_group_array(x) FROM c;
+} {[1,2.0,null,"three"]}
+do_execsql_test json101-21.27 {
+  WITH c(x,y) AS (VALUES('a',1),('b',2.0),('c',NULL),(NULL,'three'),('e','four'))
+  SELECT json_group_object(x,y) FROM c;
+} {{{"a":1,"b":2.0,"c":null,:"three","e":"four"}}}
+
+# 2023-10-09 https://sqlite.org/forum/forumpost/b25edc1d46
+# UAF due to JSON cache overflow
+#
+do_execsql_test json101-22.1 {
+  SELECT json_set(
+    '{}',
+    '$.a', json('1'),
+    '$.a', json('2'),
+    '$.b', json('3'),
+    '$.b', json('4'),
+    '$.c', json('5'),
+    '$.c', json('6')
+  );
+} {{{"a":2,"b":4,"c":6}}}
+do_execsql_test json101-22.2 {
+  SELECT json_replace(
+    '{"a":7,"b":8,"c":9}',
+    '$.a', json('1'),
+    '$.a', json('2'),
+    '$.b', json('3'),
+    '$.b', json('4'),
+    '$.c', json('5'),
+    '$.c', json('6')
+  );
+} {{{"a":2,"b":4,"c":6}}}
+
+# 2023-10-17 https://sqlite.org/forum/forumpost/fc0e3f1e2a
+# Incorrect accesss to '$[0]' in parsed + edited JSON.
+#
+do_execsql_test json101-23.1 {
+  SELECT j, j->>0, j->>1
+    FROM (SELECT json_set(json_set('[]','$[#]',0), '$[#]',1) AS j);
+} {{[0,1]} 0 1}
+do_execsql_test json101-23.2 {
+  SELECT j, j->>0, j->>1
+    FROM (SELECT json_set('[]','$[#]',0,'$[#]',1) AS j);
+} {{[0,1]} 0 1}
+
+# Insert/Set/Replace where the path specifies substructure that
+# does not yet exist
+#
+proc tx x {return [string map [list ( \173 ) \175 ' \042 < \133 > \135] $x]}
+foreach {id start path ins set repl} {
+  1 {{}}       {$.a.b.c}     ('a':('b':('c':9)))      ('a':('b':('c':9)))      ()
+  2 {{a:4}}    {$.a.b.c}     ('a':4)                  ('a':4)                  ('a':4)
+  3 {{a:{}}}   {$.a.b.c}     ('a':('b':('c':9)))      ('a':('b':('c':9)))      ('a':())
+  4 {[0,1,2]}  {$[3].a[0].b} <0,1,2,('a':<('b':9)>)>  <0,1,2,('a':<('b':9)>)>  <0,1,2>
+  5 {[0,1,2]}  {$[1].a[0].b} <0,1,2>                  <0,1,2>                  <0,1,2>
+  6 {[0,{},2]} {$[1].a[0].b} <0,('a':<('b':9)>),2>    <0,('a':<('b':9)>),2>    <0,(),2>
+  7 {[0,1,2]}  {$[3][0].b}   <0,1,2,<('b':9)>>        <0,1,2,<('b':9)>>        <0,1,2>
+  8 {[0,1,2]}  {$[1][0].b}   <0,1,2>                  <0,1,2>                  <0,1,2>
+} {
+  do_execsql_test json101-24.$id.insert {
+    SELECT json_insert($start,$path,9);
+  } [list [tx $ins]]
+  do_execsql_test json101-24.$id.set {
+    SELECT json_set($start,$path,9);
+  } [list [tx $set]]
+  do_execsql_test json101-24.$id.replace {
+    SELECT json_replace($start,$path,9);
+  } [list [tx $repl]]
+}
+
+finish_test
diff --git a/test/json102.test b/test/json102.test
new file mode 100644
index 0000000000000000000000000000000000000000..54a0e1e0e0408167cc91cd9824d828992a0c6141
--- /dev/null
+++ b/test/json102.test
@@ -0,0 +1,822 @@
+# 2015-08-12
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements tests for JSON SQL functions extension to the
+# SQLite library.
+#
+# This file contains tests automatically generated from the json1
+# documentation.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_execsql_test json102-100 {
+  SELECT json_object('ex','[52,3.14159]');
+} {{{"ex":"[52,3.14159]"}}}
+do_execsql_test json102-100b {
+  SELECT json(jsonb_object('ex','[52,3.14159]'));
+} {{{"ex":"[52,3.14159]"}}}
+do_execsql_test json102-110 {
+  SELECT json_object('ex',json('[52,3.14159]'));
+} {{{"ex":[52,3.14159]}}}
+do_execsql_test json102-110-2 {
+  SELECT json(jsonb_object('ex',json('[52,3.14159]')));
+} {{{"ex":[52,3.14159]}}}
+do_execsql_test json102-110-3 {
+  SELECT json_object('ex',jsonb('[52,3.14159]'));
+} {{{"ex":[52,3.14159]}}}
+do_execsql_test json102-110-3 {
+  SELECT json(jsonb_object('ex',jsonb('[52,3.14159]')));
+} {{{"ex":[52,3.14159]}}}
+do_execsql_test json102-120 {
+  SELECT json_object('ex',json_array(52,3.14159));
+} {{{"ex":[52,3.14159]}}}
+do_execsql_test json102-120-2 {
+  SELECT json(jsonb_object('ex',json_array(52,3.14159)));
+} {{{"ex":[52,3.14159]}}}
+do_execsql_test json102-120-3 {
+  SELECT json_object('ex',jsonb_array(52,3.14159));
+} {{{"ex":[52,3.14159]}}}
+do_execsql_test json102-120-4 {
+  SELECT json(jsonb_object('ex',jsonb_array(52,3.14159)));
+} {{{"ex":[52,3.14159]}}}
+do_execsql_test json102-130 {
+  SELECT json(' { "this" : "is", "a": [ "test" ] } ');
+} {{{"this":"is","a":["test"]}}}
+do_execsql_test json102-130b {
+  SELECT json(jsonb(' { "this" : "is", "a": [ "test" ] } '));
+} {{{"this":"is","a":["test"]}}}
+do_execsql_test json102-140 {
+  SELECT json_array(1,2,'3',4);
+} {{[1,2,"3",4]}}
+do_execsql_test json102-140b {
+  SELECT json(jsonb_array(1,2,'3',4));
+} {{[1,2,"3",4]}}
+do_execsql_test json102-150 {
+  SELECT json_array('[1,2]');
+} {{["[1,2]"]}}
+do_execsql_test json102-150b {
+  SELECT json(jsonb_array('[1,2]'));
+} {{["[1,2]"]}}
+do_execsql_test json102-160 {
+  SELECT json_array(json_array(1,2));
+} {{[[1,2]]}}
+do_execsql_test json102-160-2 {
+  SELECT json_array(jsonb_array(1,2));
+} {{[[1,2]]}}
+do_execsql_test json102-160-3 {
+  SELECT json(jsonb_array(json_array(1,2)));
+} {{[[1,2]]}}
+do_execsql_test json102-160-4 {
+  SELECT json(jsonb_array(jsonb_array(1,2)));
+} {{[[1,2]]}}
+do_execsql_test json102-170 {
+  SELECT json_array(1,null,'3','[4,5]','{"six":7.7}');
+} {{[1,null,"3","[4,5]","{\"six\":7.7}"]}}
+do_execsql_test json102-170b {
+  SELECT json(jsonb_array(1,null,'3','[4,5]','{"six":7.7}'));
+} {{[1,null,"3","[4,5]","{\"six\":7.7}"]}}
+do_execsql_test json102-180 {
+  SELECT json_array(1,null,'3',json('[4,5]'),json('{"six":7.7}'));
+} {{[1,null,"3",[4,5],{"six":7.7}]}}
+do_execsql_test json102-180-2 {
+  SELECT json_array(1,null,'3',jsonb('[4,5]'),json('{"six":7.7}'));
+} {{[1,null,"3",[4,5],{"six":7.7}]}}
+do_execsql_test json102-180-3 {
+  SELECT json(jsonb_array(1,null,'3',json('[4,5]'),json('{"six":7.7}')));
+} {{[1,null,"3",[4,5],{"six":7.7}]}}
+do_execsql_test json102-180-4 {
+  SELECT json(jsonb_array(1,null,'3',jsonb('[4,5]'),jsonb('{"six":7.7}')));
+} {{[1,null,"3",[4,5],{"six":7.7}]}}
+do_execsql_test json102-190 {
+  SELECT json_array_length('[1,2,3,4]');
+} {{4}}
+do_execsql_test json102-190b {
+  SELECT json_array_length(jsonb('[1,2,3,4]'));
+} {{4}}
+do_execsql_test json102-191 {
+  SELECT json_array_length( json_remove('[1,2,3,4]','$[2]') );
+} {{3}}
+do_execsql_test json102-191b {
+  SELECT json_array_length( jsonb_remove('[1,2,3,4]','$[2]') );
+} {{3}}
+do_execsql_test json102-200 {
+  SELECT json_array_length('[1,2,3,4]', '$');
+} {{4}}
+do_execsql_test json102-200b {
+  SELECT json_array_length(jsonb('[1,2,3,4]'), '$');
+} {{4}}
+do_execsql_test json102-210 {
+  SELECT json_array_length('[1,2,3,4]', '$[2]');
+} {{0}}
+do_execsql_test json102-210b {
+  SELECT json_array_length(jsonb('[1,2,3,4]'), '$[2]');
+} {{0}}
+do_execsql_test json102-220 {
+  SELECT json_array_length('{"one":[1,2,3]}');
+} {{0}}
+do_execsql_test json102-220 {
+  SELECT json_array_length('{"one":[1,2,3]}');
+} {{0}}
+do_execsql_test json102-230b {
+  SELECT json_array_length(jsonb('{"one":[1,2,3]}'), '$.one');
+} {{3}}
+do_execsql_test json102-240 {
+  SELECT json_array_length('{"one":[1,2,3]}', '$.two');
+} {{}}
+do_execsql_test json102-240b {
+  SELECT json_array_length(jsonb('{"one":[1,2,3]}'), '$.two');
+} {{}}
+do_execsql_test json102-250 {
+  SELECT json_extract('{"a":2,"c":[4,5,{"f":7}]}', '$');
+} {{{"a":2,"c":[4,5,{"f":7}]}}}
+do_execsql_test json102-250-2 {
+  SELECT json_extract(jsonb('{"a":2,"c":[4,5,{"f":7}]}'), '$');
+} {{{"a":2,"c":[4,5,{"f":7}]}}}
+do_execsql_test json102-250-3 {
+  SELECT json(jsonb_extract('{"a":2,"c":[4,5,{"f":7}]}', '$'));
+} {{{"a":2,"c":[4,5,{"f":7}]}}}
+do_execsql_test json102-250-4 {
+  SELECT json(jsonb_extract(jsonb('{"a":2,"c":[4,5,{"f":7}]}'), '$'));
+} {{{"a":2,"c":[4,5,{"f":7}]}}}
+do_execsql_test json102-260 {
+  SELECT json_extract('{"a":2,"c":[4,5,{"f":7}]}', '$.c');
+} {{[4,5,{"f":7}]}}
+do_execsql_test json102-260-2 {
+  SELECT json_extract(jsonb('{"a":2,"c":[4,5,{"f":7}]}'), '$.c');
+} {{[4,5,{"f":7}]}}
+do_execsql_test json102-260-3 {
+  SELECT json(jsonb_extract('{"a":2,"c":[4,5,{"f":7}]}', '$.c'));
+} {{[4,5,{"f":7}]}}
+do_execsql_test json102-260-4 {
+  SELECT json(jsonb_extract(jsonb('{"a":2,"c":[4,5,{"f":7}]}'), '$.c'));
+} {{[4,5,{"f":7}]}}
+do_execsql_test json102-270 {
+  SELECT json_extract('{"a":2,"c":[4,5,{"f":7}]}', '$.c[2]');
+} {{{"f":7}}}
+do_execsql_test json102-270-2 {
+  SELECT json_extract(jsonb('{"a":2,"c":[4,5,{"f":7}]}'), '$.c[2]');
+} {{{"f":7}}}
+do_execsql_test json102-270-3 {
+  SELECT json(jsonb_extract(jsonb('{"a":2,"c":[4,5,{"f":7}]}'), '$.c[2]'));
+} {{{"f":7}}}
+do_execsql_test json102-270-4 {
+  SELECT json(jsonb_extract('{"a":2,"c":[4,5,{"f":7}]}', '$.c[2]'));
+} {{{"f":7}}}
+do_execsql_test json102-280 {
+  SELECT json_extract('{"a":2,"c":[4,5,{"f":7}]}', '$.c[2].f');
+} {{7}}
+do_execsql_test json102-280b {
+  SELECT jsonb_extract('{"a":2,"c":[4,5,{"f":7}]}', '$.c[2].f');
+} {{7}}
+do_execsql_test json102-290 {
+  SELECT json_extract('{"a":2,"c":[4,5],"f":7}','$.c','$.a');
+} {{[[4,5],2]}}
+do_execsql_test json102-290-2 {
+  SELECT json_extract(jsonb('{"a":2,"c":[4,5],"f":7}'),'$.c','$.a');
+} {{[[4,5],2]}}
+do_execsql_test json102-290-3 {
+  SELECT json(jsonb_extract('{"a":2,"c":[4,5],"f":7}','$.c','$.a'));
+} {{[[4,5],2]}}
+do_execsql_test json102-290-4 {
+  SELECT json(jsonb_extract(jsonb('{"a":2,"c":[4,5],"f":7}'),'$.c','$.a'));
+} {{[[4,5],2]}}
+do_execsql_test json102-300 {
+  SELECT json_extract('{"a":2,"c":[4,5,{"f":7}]}', '$.x');
+} {{}}
+do_execsql_test json102-300b {
+  SELECT jsonb_extract('{"a":2,"c":[4,5,{"f":7}]}', '$.x');
+} {{}}
+do_execsql_test json102-310 {
+  SELECT json_extract('{"a":2,"c":[4,5,{"f":7}]}', '$.x', '$.a');
+} {{[null,2]}}
+do_execsql_test json102-310-2 {
+  SELECT json_extract(jsonb('{"a":2,"c":[4,5,{"f":7}]}'), '$.x', '$.a');
+} {{[null,2]}}
+do_execsql_test json102-310-3 {
+  SELECT json(jsonb_extract(jsonb('{"a":2,"c":[4,5,{"f":7}]}'), '$.x', '$.a'));
+} {{[null,2]}}
+do_execsql_test json102-310-43 {
+  SELECT json(jsonb_extract('{"a":2,"c":[4,5,{"f":7}]}', '$.x', '$.a'));
+} {{[null,2]}}
+do_execsql_test json102-320 {
+  SELECT json_insert('{"a":2,"c":4}', '$.a', 99);
+} {{{"a":2,"c":4}}}
+do_execsql_test json102-320-2 {
+  SELECT json_insert(jsonb('{"a":2,"c":4}'), '$.a', 99);
+} {{{"a":2,"c":4}}}
+do_execsql_test json102-320-3 {
+  SELECT json(jsonb_insert('{"a":2,"c":4}', '$.a', 99));
+} {{{"a":2,"c":4}}}
+do_execsql_test json102-320-4 {
+  SELECT json(jsonb_insert(jsonb('{"a":2,"c":4}'), '$.a', 99));
+} {{{"a":2,"c":4}}}
+do_execsql_test json102-330 {
+  SELECT json_insert('{"a":2,"c":4}', '$.e', 99);
+} {{{"a":2,"c":4,"e":99}}}
+do_execsql_test json102-330-2 {
+  SELECT json_insert(jsonb('{"a":2,"c":4}'), '$.e', 99);
+} {{{"a":2,"c":4,"e":99}}}
+do_execsql_test json102-330-3 {
+  SELECT json(jsonb_insert('{"a":2,"c":4}', '$.e', 99));
+} {{{"a":2,"c":4,"e":99}}}
+do_execsql_test json102-330-4 {
+  SELECT json(jsonb_insert(jsonb('{"a":2,"c":4}'), '$.e', 99));
+} {{{"a":2,"c":4,"e":99}}}
+do_execsql_test json102-340 {
+  SELECT json_replace('{"a":2,"c":4}', '$.a', 99);
+} {{{"a":99,"c":4}}}
+do_execsql_test json102-340-2 {
+  SELECT json_replace(jsonb('{"a":2,"c":4}'), '$.a', 99);
+} {{{"a":99,"c":4}}}
+do_execsql_test json102-340-3 {
+  SELECT json(jsonb_replace('{"a":2,"c":4}', '$.a', 99));
+} {{{"a":99,"c":4}}}
+do_execsql_test json102-340-4 {
+  SELECT json(jsonb_replace(jsonb('{"a":2,"c":4}'), '$.a', 99));
+} {{{"a":99,"c":4}}}
+do_execsql_test json102-350 {
+  SELECT json_replace('{"a":2,"c":4}', '$.e', 99);
+} {{{"a":2,"c":4}}}
+do_execsql_test json102-350-2 {
+  SELECT json_replace(jsonb('{"a":2,"c":4}'), '$.e', 99);
+} {{{"a":2,"c":4}}}
+do_execsql_test json102-350-3 {
+  SELECT json(jsonb_replace('{"a":2,"c":4}', '$.e', 99));
+} {{{"a":2,"c":4}}}
+do_execsql_test json102-350-4 {
+  SELECT json(jsonb_replace(jsonb('{"a":2,"c":4}'), '$.e', 99));
+} {{{"a":2,"c":4}}}
+do_execsql_test json102-360 {
+  SELECT json_set('{"a":2,"c":4}', '$.a', 99);
+} {{{"a":99,"c":4}}}
+do_execsql_test json102-360-2 {
+  SELECT json_set(jsonb('{"a":2,"c":4}'), '$.a', 99);
+} {{{"a":99,"c":4}}}
+do_execsql_test json102-360-3 {
+  SELECT json(jsonb_set('{"a":2,"c":4}', '$.a', 99));
+} {{{"a":99,"c":4}}}
+do_execsql_test json102-360-4 {
+  SELECT json(jsonb_set(jsonb('{"a":2,"c":4}'), '$.a', 99));
+} {{{"a":99,"c":4}}}
+do_execsql_test json102-370 {
+  SELECT json_set('{"a":2,"c":4}', '$.e', 99);
+} {{{"a":2,"c":4,"e":99}}}
+do_execsql_test json102-370-2 {
+  SELECT json_set(jsonb('{"a":2,"c":4}'), '$.e', 99);
+} {{{"a":2,"c":4,"e":99}}}
+do_execsql_test json102-370-3 {
+  SELECT json(jsonb_set('{"a":2,"c":4}', '$.e', 99));
+} {{{"a":2,"c":4,"e":99}}}
+do_execsql_test json102-370-4 {
+  SELECT json(jsonb_set(jsonb('{"a":2,"c":4}'), '$.e', 99));
+} {{{"a":2,"c":4,"e":99}}}
+do_execsql_test json102-380 {
+  SELECT json_set('{"a":2,"c":4}', '$.c', '[97,96]');
+} {{{"a":2,"c":"[97,96]"}}}
+do_execsql_test json102-380-2 {
+  SELECT json_set(jsonb('{"a":2,"c":4}'), '$.c', '[97,96]');
+} {{{"a":2,"c":"[97,96]"}}}
+do_execsql_test json102-380-3 {
+  SELECT json(jsonb_set('{"a":2,"c":4}', '$.c', '[97,96]'));
+} {{{"a":2,"c":"[97,96]"}}}
+do_execsql_test json102-380-4 {
+  SELECT json(jsonb_set(jsonb('{"a":2,"c":4}'), '$.c', '[97,96]'));
+} {{{"a":2,"c":"[97,96]"}}}
+do_execsql_test json102-390 {
+  SELECT json_set('{"a":2,"c":4}', '$.c', json('[97,96]'));
+} {{{"a":2,"c":[97,96]}}}
+do_execsql_test json102-390-2 {
+  SELECT json_set(jsonb('{"a":2,"c":4}'), '$.c', json('[97,96]'));
+} {{{"a":2,"c":[97,96]}}}
+do_execsql_test json102-390-3 {
+  SELECT json(jsonb_set('{"a":2,"c":4}', '$.c', json('[97,96]')));
+} {{{"a":2,"c":[97,96]}}}
+do_execsql_test json102-390-4 {
+  SELECT json(jsonb_set(jsonb('{"a":2,"c":4}'), '$.c', json('[97,96]')));
+} {{{"a":2,"c":[97,96]}}}
+do_execsql_test json102-390-5 {
+  SELECT json_set('{"a":2,"c":4}', '$.c', jsonb('[97,96]'));
+} {{{"a":2,"c":[97,96]}}}
+do_execsql_test json102-390-6 {
+  SELECT json_set(jsonb('{"a":2,"c":4}'), '$.c', jsonb('[97,96]'));
+} {{{"a":2,"c":[97,96]}}}
+do_execsql_test json102-390-7 {
+  SELECT json(jsonb_set('{"a":2,"c":4}', '$.c', jsonb('[97,96]')));
+} {{{"a":2,"c":[97,96]}}}
+do_execsql_test json102-390-8 {
+  SELECT json(jsonb_set(jsonb('{"a":2,"c":4}'), '$.c', jsonb('[97,96]')));
+} {{{"a":2,"c":[97,96]}}}
+do_execsql_test json102-400 {
+  SELECT json_set('{"a":2,"c":4}', '$.c', json_array(97,96));
+} {{{"a":2,"c":[97,96]}}}
+do_execsql_test json102-400-2 {
+  SELECT json_set(jsonb('{"a":2,"c":4}'), '$.c', json_array(97,96));
+} {{{"a":2,"c":[97,96]}}}
+do_execsql_test json102-400-3 {
+  SELECT json(jsonb_set('{"a":2,"c":4}', '$.c', json_array(97,96)));
+} {{{"a":2,"c":[97,96]}}}
+do_execsql_test json102-400-4 {
+  SELECT json(jsonb_set(jsonb('{"a":2,"c":4}'), '$.c', json_array(97,96)));
+} {{{"a":2,"c":[97,96]}}}
+do_execsql_test json102-400-5 {
+  SELECT json_set('{"a":2,"c":4}', '$.c', jsonb_array(97,96));
+} {{{"a":2,"c":[97,96]}}}
+do_execsql_test json102-400-6 {
+  SELECT json_set(jsonb('{"a":2,"c":4}'), '$.c', jsonb_array(97,96));
+} {{{"a":2,"c":[97,96]}}}
+do_execsql_test json102-400-7 {
+  SELECT json(jsonb_set('{"a":2,"c":4}', '$.c', jsonb_array(97,96)));
+} {{{"a":2,"c":[97,96]}}}
+do_execsql_test json102-400-8 {
+  SELECT json(jsonb_set(jsonb('{"a":2,"c":4}'), '$.c', jsonb_array(97,96)));
+} {{{"a":2,"c":[97,96]}}}
+do_execsql_test json102-410 {
+  SELECT json_object('a',2,'c',4);
+} {{{"a":2,"c":4}}}
+do_execsql_test json102-410b {
+  SELECT json(jsonb_object('a',2,'c',4));
+} {{{"a":2,"c":4}}}
+do_execsql_test json102-420 {
+  SELECT json_object('a',2,'c','{e:5}');
+} {{{"a":2,"c":"{e:5}"}}}
+do_execsql_test json102-420b {
+  SELECT json(jsonb_object('a',2,'c','{e:5}'));
+} {{{"a":2,"c":"{e:5}"}}}
+do_execsql_test json102-430 {
+  SELECT json_object('a',2,'c',json_object('e',5));
+} {{{"a":2,"c":{"e":5}}}}
+do_execsql_test json102-430-2 {
+  SELECT json(jsonb_object('a',2,'c',json_object('e',5)));
+} {{{"a":2,"c":{"e":5}}}}
+do_execsql_test json102-430-3 {
+  SELECT json_object('a',2,'c',jsonb_object('e',5));
+} {{{"a":2,"c":{"e":5}}}}
+do_execsql_test json102-430-4 {
+  SELECT json(jsonb_object('a',2,'c',jsonb_object('e',5)));
+} {{{"a":2,"c":{"e":5}}}}
+do_execsql_test json102-440 {
+  SELECT json_remove('[0,1,2,3,4]','$[2]');
+} {{[0,1,3,4]}}
+do_execsql_test json102-440-2 {
+  SELECT json_remove(jsonb('[0,1,2,3,4]'),'$[2]');
+} {{[0,1,3,4]}}
+do_execsql_test json102-440-3 {
+  SELECT json(jsonb_remove('[0,1,2,3,4]','$[2]'));
+} {{[0,1,3,4]}}
+do_execsql_test json102-440-4 {
+  SELECT json(jsonb_remove(jsonb('[0,1,2,3,4]'),'$[2]'));
+} {{[0,1,3,4]}}
+do_execsql_test json102-450 {
+  SELECT json_remove('[0,1,2,3,4]','$[2]','$[0]');
+} {{[1,3,4]}}
+do_execsql_test json102-450-2 {
+  SELECT json_remove(jsonb('[0,1,2,3,4]'),'$[2]','$[0]');
+} {{[1,3,4]}}
+do_execsql_test json102-450-3 {
+  SELECT json(jsonb_remove('[0,1,2,3,4]','$[2]','$[0]'));
+} {{[1,3,4]}}
+do_execsql_test json102-450-4 {
+  SELECT json(jsonb_remove(jsonb('[0,1,2,3,4]'),'$[2]','$[0]'));
+} {{[1,3,4]}}
+do_execsql_test json102-460 {
+  SELECT json_remove('[0,1,2,3,4]','$[0]','$[2]');
+} {{[1,2,4]}}
+do_execsql_test json102-460-2 {
+  SELECT json_remove(jsonb('[0,1,2,3,4]'),'$[0]','$[2]');
+} {{[1,2,4]}}
+do_execsql_test json102-460-3 {
+  SELECT json(jsonb_remove('[0,1,2,3,4]','$[0]','$[2]'));
+} {{[1,2,4]}}
+do_execsql_test json102-460-4 {
+  SELECT json(jsonb_remove(jsonb('[0,1,2,3,4]'),'$[0]','$[2]'));
+} {{[1,2,4]}}
+do_execsql_test json102-470 {
+  SELECT json_remove('{"x":25,"y":42}');
+} {{{"x":25,"y":42}}}
+do_execsql_test json102-470-2 {
+  SELECT json_remove(jsonb('{"x":25,"y":42}'));
+} {{{"x":25,"y":42}}}
+do_execsql_test json102-470-3 {
+  SELECT json(jsonb_remove('{"x":25,"y":42}'));
+} {{{"x":25,"y":42}}}
+do_execsql_test json102-470-4 {
+  SELECT json(jsonb_remove(jsonb('{"x":25,"y":42}')));
+} {{{"x":25,"y":42}}}
+do_execsql_test json102-480 {
+  SELECT json_remove('{"x":25,"y":42}','$.z');
+} {{{"x":25,"y":42}}}
+do_execsql_test json102-480-2 {
+  SELECT json_remove(jsonb('{"x":25,"y":42}'),'$.z');
+} {{{"x":25,"y":42}}}
+do_execsql_test json102-480-3 {
+  SELECT json(jsonb_remove('{"x":25,"y":42}','$.z'));
+} {{{"x":25,"y":42}}}
+do_execsql_test json102-480-4 {
+  SELECT json(jsonb_remove(jsonb('{"x":25,"y":42}'),'$.z'));
+} {{{"x":25,"y":42}}}
+do_execsql_test json102-490 {
+  SELECT json_remove('{"x":25,"y":42}','$.y');
+} {{{"x":25}}}
+do_execsql_test json102-490-2 {
+  SELECT json_remove(jsonb('{"x":25,"y":42}'),'$.y');
+} {{{"x":25}}}
+do_execsql_test json102-490-3 {
+  SELECT json(jsonb_remove('{"x":25,"y":42}','$.y'));
+} {{{"x":25}}}
+do_execsql_test json102-490-4 {
+  SELECT json(jsonb_remove(jsonb('{"x":25,"y":42}'),'$.y'));
+} {{{"x":25}}}
+do_execsql_test json102-500 {
+  SELECT json_remove('{"x":25,"y":42}','$');
+} {{}}
+do_execsql_test json102-500-2 {
+  SELECT json_remove(jsonb('{"x":25,"y":42}'),'$');
+} {{}}
+do_execsql_test json102-500-3 {
+  SELECT json(jsonb_remove('{"x":25,"y":42}','$'));
+} {{}}
+do_execsql_test json102-500-4 {
+  SELECT json(jsonb_remove(jsonb('{"x":25,"y":42}'),'$'));
+} {{}}
+do_execsql_test json102-510 {
+  SELECT json_type('{"a":[2,3.5,true,false,null,"x"]}');
+} {{object}}
+do_execsql_test json102-510b {
+  SELECT json_type(x'cc0f1761cb0b133235332e350102001778');
+} {{object}}
+do_execsql_test json102-520 {
+  SELECT json_type('{"a":[2,3.5,true,false,null,"x"]}','$');
+} {{object}}
+do_execsql_test json102-520b {
+  SELECT json_type(x'cc0f1761cb0b133235332e350102001778','$');
+} {{object}}
+do_execsql_test json102-530 {
+  SELECT json_type('{"a":[2,3.5,true,false,null,"x"]}','$.a');
+} {{array}}
+do_execsql_test json102-530b {
+  SELECT json_type(x'cc0f1761cb0b133235332e350102001778','$.a');
+} {{array}}
+do_execsql_test json102-540 {
+  SELECT json_type('{"a":[2,3.5,true,false,null,"x"]}','$.a[0]');
+} {{integer}}
+do_execsql_test json102-540b {
+  SELECT json_type(x'cc0f1761cb0b133235332e350102001778','$.a[0]');
+} {{integer}}
+do_execsql_test json102-550 {
+  SELECT json_type('{"a":[2,3.5,true,false,null,"x"]}','$.a[1]');
+} {{real}}
+do_execsql_test json102-550b {
+  SELECT json_type(x'cc0f1761cb0b133235332e350102001778','$.a[1]');
+} {{real}}
+do_execsql_test json102-560 {
+  SELECT json_type('{"a":[2,3.5,true,false,null,"x"]}','$.a[2]');
+} {{true}}
+do_execsql_test json102-560b {
+  SELECT json_type(x'cc0f1761cb0b133235332e350102001778','$.a[2]');
+} {{true}}
+do_execsql_test json102-570 {
+  SELECT json_type('{"a":[2,3.5,true,false,null,"x"]}','$.a[3]');
+} {{false}}
+do_execsql_test json102-570b {
+  SELECT json_type(x'cc0f1761cb0b133235332e350102001778','$.a[3]');
+} {{false}}
+do_execsql_test json102-580 {
+  SELECT json_type('{"a":[2,3.5,true,false,null,"x"]}','$.a[4]');
+} {{null}}
+do_execsql_test json102-580b {
+  SELECT json_type(x'cc0f1761cb0b133235332e350102001778','$.a[4]');
+} {{null}}
+do_execsql_test json102-590 {
+  SELECT json_type('{"a":[2,3.5,true,false,null,"x"]}','$.a[5]');
+} {{text}}
+do_execsql_test json102-590b {
+  SELECT json_type(x'cc0f1761cb0b133235332e350102001778','$.a[5]');
+} {{text}}
+do_execsql_test json102-600 {
+  SELECT json_type('{"a":[2,3.5,true,false,null,"x"]}','$.a[6]');
+} {{}}
+do_execsql_test json102-600b {
+  SELECT json_type(x'cc0f1761cb0b133235332e350102001778','$.a[6]');
+} {{}}
+do_execsql_test json102-610 {
+  SELECT json_valid(char(123)||'"x":35'||char(125));
+} {{1}}
+do_execsql_test json102-620 {
+  SELECT json_valid(char(123)||'"x":35');
+} {{0}}
+
+ifcapable vtab {
+do_execsql_test json102-1000 {
+  CREATE TABLE user(name,phone,phoneb);
+  INSERT INTO user(name,phone) VALUES
+     ('Alice','["919-555-2345","804-555-3621"]'),
+     ('Bob','["201-555-8872"]'),
+     ('Cindy','["704-555-9983"]'),
+     ('Dave','["336-555-8421","704-555-4321","803-911-4421"]');
+  UPDATE user SET phoneb=jsonb(phone);
+  SELECT DISTINCT user.name
+    FROM user, json_each(user.phone)
+   WHERE json_each.value LIKE '704-%'
+   ORDER BY 1;
+} {Cindy Dave}
+do_execsql_test json102-1000b {
+  SELECT DISTINCT user.name
+    FROM user, json_each(user.phoneb)
+   WHERE json_each.value LIKE '704-%'
+   ORDER BY 1;
+} {Cindy Dave}
+
+do_execsql_test json102-1010 {
+  UPDATE user
+     SET phone=json_extract(phone,'$[0]')
+   WHERE json_array_length(phone)<2;
+  SELECT name, substr(phone,1,5) FROM user ORDER BY name;
+} {Alice {["919} Bob 201-5 Cindy 704-5 Dave {["336}}
+do_execsql_test json102-1011 {
+  SELECT name FROM user WHERE phone LIKE '704-%'
+  UNION
+  SELECT user.name
+    FROM user, json_each(user.phone)
+   WHERE json_valid(user.phone)
+     AND json_each.value LIKE '704-%';
+} {Cindy Dave}
+
+do_execsql_test json102-1100 {
+  CREATE TABLE big(json JSON);
+  INSERT INTO big(json) VALUES('{
+    "id":123,
+    "stuff":[1,2,3,4],
+    "partlist":[
+       {"uuid":"bb108722-572e-11e5-9320-7f3b63a4ca74"},
+       {"uuid":"c690dc14-572e-11e5-95f9-dfc8861fd535"},
+       {"subassembly":[
+          {"uuid":"6fa5181e-5721-11e5-a04e-57f3d7b32808"}
+       ]}
+    ]
+  }');
+  INSERT INTO big(json) VALUES('{
+    "id":456,
+    "stuff":["hello","world","xyzzy"],
+    "partlist":[
+       {"uuid":false},
+       {"uuid":"c690dc14-572e-11e5-95f9-dfc8861fd535"}
+    ]
+  }');
+} {}
+set correct_answer [list \
+    1 {$.id} 123 \
+    1 {$.stuff[0]} 1 \
+    1 {$.stuff[1]} 2 \
+    1 {$.stuff[2]} 3 \
+    1 {$.stuff[3]} 4 \
+    1 {$.partlist[0].uuid} bb108722-572e-11e5-9320-7f3b63a4ca74 \
+    1 {$.partlist[1].uuid} c690dc14-572e-11e5-95f9-dfc8861fd535 \
+    1 {$.partlist[2].subassembly[0].uuid} 6fa5181e-5721-11e5-a04e-57f3d7b32808 \
+    2 {$.id} 456 \
+    2 {$.stuff[0]} hello \
+    2 {$.stuff[1]} world \
+    2 {$.stuff[2]} xyzzy \
+    2 {$.partlist[0].uuid} 0 \
+    2 {$.partlist[1].uuid} c690dc14-572e-11e5-95f9-dfc8861fd535]
+do_execsql_test json102-1110 {
+  SELECT big.rowid, fullkey, value
+    FROM big, json_tree(big.json)
+   WHERE json_tree.type NOT IN ('object','array')
+   ORDER BY +big.rowid, +json_tree.id
+} $correct_answer
+do_execsql_test json102-1110b {
+  SELECT big.rowid, fullkey, value
+    FROM big, json_tree(jsonb(big.json))
+   WHERE json_tree.type NOT IN ('object','array')
+   ORDER BY +big.rowid, +json_tree.id
+} $correct_answer
+do_execsql_test json102-1120 {
+  SELECT big.rowid, fullkey, atom
+    FROM big, json_tree(big.json)
+   WHERE atom IS NOT NULL
+   ORDER BY +big.rowid, +json_tree.id
+} $correct_answer
+
+do_execsql_test json102-1130 {
+  SELECT DISTINCT json_extract(big.json,'$.id')
+    FROM big, json_tree(big.json,'$.partlist')
+   WHERE json_tree.key='uuid'
+     AND json_tree.value='6fa5181e-5721-11e5-a04e-57f3d7b32808';
+} {123}
+do_execsql_test json102-1131 {
+  SELECT DISTINCT json_extract(big.json,'$.id')
+    FROM big, json_tree(big.json,'$')
+   WHERE json_tree.key='uuid'
+     AND json_tree.value='6fa5181e-5721-11e5-a04e-57f3d7b32808';
+} {123}
+do_execsql_test json102-1132 {
+  SELECT DISTINCT json_extract(big.json,'$.id')
+    FROM big, json_tree(big.json)
+   WHERE json_tree.key='uuid'
+     AND json_tree.value='6fa5181e-5721-11e5-a04e-57f3d7b32808';
+} {123}
+} ;# end ifcapable vtab
+
+#-------------------------------------------------------------------------
+# Test that json_valid() correctly identifies non-ascii range 
+# characters as non-whitespace.
+#
+do_execsql_test json102-1201 { SELECT json_valid(char(32)  || '"xyz"') } 1
+do_execsql_test json102-1202 { SELECT json_valid(char(200) || '"xyz"') } 0
+
+# Off-by-one error in jsonAppendString()
+#
+for {set i 0} {$i<100} {incr i} {
+  set str abcdef[string repeat \" [expr {$i+50}]]uvwxyz
+  do_test json102-[format %d [expr {$i+1300}]] {
+    db eval {SELECT json_extract(json_array($::str),'$[0]')==$::str}
+  } {1}
+}
+
+#-------------------------------------------------------------------------
+# 2017-04-08 ticket b93be8729a895a528e2849fca99f7
+# JSON extension accepts invalid numeric values
+#
+# JSON does not allow leading zeros.  But the JSON extension was
+# allowing them.  The following tests verify that the problem is now
+# fixed.
+#
+foreach {id j x0 x5} {
+  1401 {'{"x":01}'} 0 0
+  1402 {'{"x":-01}'} 0 0
+  1403 {'{"x":0}'} 1 1
+  1404 {'{"x":-0}'} 1 1
+  1405 {'{"x":0.1}'} 1 1
+  1406 {'{"x":-0.1}'} 1 1
+  1407 {'{"x":0.0000}'} 1 1
+  1408 {'{"x":-0.0000}'} 1 1
+  1409 {'{"x":01.5}'} 0 0
+  1410 {'{"x":-01.5}'} 0 0
+  1411 {'{"x":00}'} 0 0
+  1412 {'{"x":-00}'} 0 0
+  1413 {'{"x":+0}'} 0 1
+  1414 {'{"x":+5}'} 0 1
+  1415 {'{"x":+5.5}'} 0 1
+} {
+  do_execsql_test json102-$id "
+     SELECT json_valid($j), NOT json_error_position($j);
+  " [list $x0 $x5]
+}
+
+#------------------------------------------------------------------------
+# 2017-04-10 ticket 6c9b5514077fed34551f98e64c09a10dc2fc8e16
+# JSON extension accepts strings containing control characters.
+#
+# The JSON spec requires that all control characters be escaped.
+#
+do_execsql_test json102-1500 {
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<0x20)
+  SELECT x FROM c WHERE json_valid(printf('{"a":"x%sz"}', char(x))) ORDER BY x;
+} {32}
+
+# All control characters are escaped
+#
+do_execsql_test json102-1501 {
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<0x1f)
+  SELECT sum(json_valid(json_quote('a'||char(x)||'z'))) FROM c ORDER BY x;
+} {31}
+
+# 2022-01-10 tests for -> and ->> operators
+#
+reset_db
+do_execsql_test json102-1600 {
+  CREATE TABLE t1(id INTEGER PRIMARY KEY, x JSON);
+  INSERT INTO t1(id,x) VALUES
+   (1, '{"a":null}'),
+   (2, '{"a":123}'),
+   (3, '{"a":4.5}'),
+   (4, '{"a":"six"}'),
+   (5, '{"a":[7,8]}'),
+   (6, '{"a":{"b":9}}'),
+   (7, '{"b":999}');
+  SELECT
+    id,
+    x->'a' AS '->',
+    CASE WHEN subtype(x->'a') THEN 'json' ELSE typeof(x->'a') END AS 'type',
+    x->>'a' AS '->>',
+    CASE WHEN subtype(x->>'a') THEN 'json' ELSE typeof(x->>'a') END AS 'type',
+    json_extract(x,'$.a') AS 'json_extract',
+    CASE WHEN subtype(json_extract(x,'$.a'))
+         THEN 'json' ELSE typeof(json_extract(x,'$.a')) END AS 'type'
+    FROM t1 ORDER BY id;
+} [list \
+  1 null      json {}        null     {}        null          \
+  2 123       json 123       integer  123       integer       \
+  3 4.5       json 4.5       real     4.5       real          \
+  4 {"six"}   json six       text     six       text          \
+  5 {[7,8]}   json {[7,8]}   text     {[7,8]}   json          \
+  6 {{"b":9}} json {{"b":9}} text     {{"b":9}} json          \
+  7 {}        null {}        null     {}        null
+]
+do_execsql_test json102-1610 {
+  DELETE FROM t1;
+  INSERT INTO t1(x) VALUES('[null,123,4.5,"six",[7,8],{"b":9}]');
+  WITH c(y) AS (VALUES(0),(1),(2),(3),(4),(5),(6))
+  SELECT
+    y,
+    x->y AS '->',
+    CASE WHEN subtype(x->y) THEN 'json' ELSE typeof(x->y) END AS 'type',
+    x->>y AS '->>',
+    CASE WHEN subtype(x->>y) THEN 'json' ELSE typeof(x->>y) END AS 'type',
+    json_extract(x,format('$[%d]',y)) AS 'json_extract',
+    CASE WHEN subtype(json_extract(x,format('$[%d]',y)))
+      THEN 'json' ELSE typeof(json_extract(x,format('$[%d]',y))) END AS 'type'
+  FROM c, t1 ORDER BY y;    
+} [list \
+  0 null      json {}        null    {}        null       \
+  1 123       json 123       integer 123       integer    \
+  2 4.5       json 4.5       real    4.5       real       \
+  3 {"six"}   json six       text    six       text       \
+  4 {[7,8]}   json {[7,8]}   text    {[7,8]}   json       \
+  5 {{"b":9}} json {{"b":9}} text    {{"b":9}} json       \
+  6 {}        null {}        null    {}        null
+]
+do_execsql_test json102-1620 {
+  DELETE FROM t1;
+  INSERT INTO t1(x) VALUES('[null,123,4.5,"six",[7,8],{"b":9}]');
+  WITH c(y) AS (VALUES(0),(1),(2),(3),(4),(5),(6))
+  SELECT
+    y,
+    x->y AS '->',
+    CASE WHEN subtype(if(json_valid(x),x->y)) THEN 'json'
+         ELSE typeof(x->y) END AS 'type',
+    x->>y AS '->>',
+    CASE WHEN subtype(x->>y) THEN 'json' ELSE typeof(x->>y) END AS 'type',
+    json_extract(x,format('$[%d]',y)) AS 'json_extract',
+    CASE WHEN subtype(json_extract(x,format('$[%d]',y)))
+      THEN 'json' ELSE typeof(json_extract(x,format('$[%d]',y))) END AS 'type'
+  FROM c, t1 ORDER BY y;    
+} [list \
+  0 null      json {}        null    {}        null       \
+  1 123       json 123       integer 123       integer    \
+  2 4.5       json 4.5       real    4.5       real       \
+  3 {"six"}   json six       text    six       text       \
+  4 {[7,8]}   json {[7,8]}   text    {[7,8]}   json       \
+  5 {{"b":9}} json {{"b":9}} text    {{"b":9}} json       \
+  6 {}        null {}        null    {}        null
+]
+
+reset_db
+do_execsql_test json102-1700 {
+  CREATE TABLE t1(a1 DATE, a2 INTEGER PRIMARY KEY, a3 INTEGER, memo TEXT);
+  CREATE INDEX t1x1 ON t1(a3, a1, memo->>'y');
+  INSERT INTO t1(a2,a1,a3,memo) VALUES (876, '2023-08-03', 5, '{"x":77,"y":4}');
+}
+do_execsql_test json102-1710 {
+  UPDATE t1 SET memo = JSON_REMOVE(memo, '$.y');
+  PRAGMA integrity_check;
+  SELECT * FROM t1;
+} {ok 2023-08-03 876 5 {{"x":77}}}
+do_execsql_test json102-1720 {
+  UPDATE t1 SET memo = JSON_SET(memo, '$.y', 6)
+    WHERE a2 IN (876) AND JSON_TYPE(memo, '$.y') IS NULL;
+  PRAGMA integrity_check;
+  SELECT * FROM t1;
+} {ok 2023-08-03 876 5 {{"x":77,"y":6}}}
+
+# 2024-05-21 https://sqlite.org/forum/forumpost/9e52cdfe15c3926e
+# What if the RHS of the -> or ->> operator is a string that looks
+# like a number?  PostgreSQL treats it as a string.
+#
+do_execsql_test json102-1800 {
+  SELECT '{"1":"one","2":"two","3":"three"}'->>'2';
+} two
+db null NULL
+do_execsql_test json102-1801 {
+  SELECT '{"1":"one","2":"two","3":"three"}'->>2;
+} NULL
+do_execsql_test json102-1810 {
+  SELECT '["zero","one","two"]'->>'1';
+} NULL
+do_execsql_test json102-1811 {
+  SELECT '["zero","one","two"]'->>1;
+} one
+do_execsql_test json102-1820 {
+  SELECT '{"1":"one","2":"two","3":"three"}'->'2';
+} {{"two"}}
+do_execsql_test json102-1821 {
+  SELECT '{"1":"one","2":"two","3":"three"}'->2;
+} {NULL}
+do_execsql_test json102-1830 {
+  SELECT '["zero","one","two"]'->'1';
+} {NULL}
+do_execsql_test json102-1831 {
+  SELECT '["zero","one","two"]'->1;
+} {{"one"}}
+
+
+finish_test
diff --git a/test/json103.test b/test/json103.test
new file mode 100644
index 0000000000000000000000000000000000000000..e7483073b647d7a506a361f2968e1bb21fa6b8db
--- /dev/null
+++ b/test/json103.test
@@ -0,0 +1,93 @@
+# 2015-12-30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements tests for JSON aggregate SQL functions
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_execsql_test json103-100 {
+  CREATE TABLE t1(a,b,c);
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION SELECT x+1 FROM c WHERE x<100)
+  INSERT INTO t1(a,b,c) SELECT x, x%3, printf('n%d',x)  FROM c;
+  UPDATE t1 SET a='orange' WHERE rowid=39;
+  UPDATE t1 SET a=32.5 WHERE rowid=31;
+  UPDATE t1 SET a=x'303132' WHERE rowid=29;
+  UPDATE t1 SET a=NULL WHERE rowid=37;
+  SELECT json_group_array(a) FROM t1 WHERE a<0 AND typeof(a)!='blob';
+} {{[]}}
+do_catchsql_test json103-101 {
+  SELECT json_group_array(a) FROM t1;
+} {1 {JSON cannot hold BLOB values}}
+do_execsql_test json103-110 {
+  SELECT json_group_array(a) FROM t1
+   WHERE rowid BETWEEN 31 AND 39;
+} {{[32.5,32,33,34,35,36,null,38,"orange"]}}
+do_execsql_test json103-111 {
+  SELECT json_array_length(json_group_array(a)) FROM t1
+   WHERE rowid BETWEEN 31 AND 39;
+} {9}
+do_execsql_test json103-120 {
+  SELECT b, json_group_array(a) FROM t1 WHERE rowid<10 GROUP BY b ORDER BY b;
+} {0 {[3,6,9]} 1 {[1,4,7]} 2 {[2,5,8]}}
+
+do_execsql_test json103-200 {
+  SELECT json_group_object(c,a) FROM t1 WHERE a<0 AND typeof(a)!='blob';
+} {{{}}}
+do_catchsql_test json103-201 {
+  SELECT json_group_object(c,a) FROM t1;
+} {1 {JSON cannot hold BLOB values}}
+
+do_execsql_test json103-210 {
+  SELECT json_group_object(c,a) FROM t1
+   WHERE rowid BETWEEN 31 AND 39 AND rowid%2==1;
+} {{{"n31":32.5,"n33":33,"n35":35,"n37":null,"n39":"orange"}}}
+do_execsql_test json103-220 {
+  SELECT b, json_group_object(c,a) FROM t1
+   WHERE rowid<7 GROUP BY b ORDER BY b;
+} {0 {{"n3":3,"n6":6}} 1 {{"n1":1,"n4":4}} 2 {{"n2":2,"n5":5}}}
+
+# ticket https://www.sqlite.org/src/info/f45ac567eaa9f93c 2016-01-30
+# Invalid JSON generated by json_group_array() 
+#
+# The underlying problem is a failure to reset Mem.eSubtype
+#
+do_execsql_test json103-300 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(x);
+  INSERT INTO t1 VALUES(1),('abc');
+  SELECT
+     json_group_array(x),
+     json_group_array(json_object('x',x))
+    FROM t1;
+} {{[1,"abc"]} {[{"x":1},{"x":"abc"}]}}
+
+# json_group_array() and json_group_object() work as window functions.
+#
+ifcapable windowfunc {
+  do_execsql_test json103-400 {
+    CREATE TABLE t4(x);
+    INSERT INTO t4 VALUES
+      (1),
+      ('a,b'),
+      (3),
+      ('x"y'),
+      (5),
+      (6),
+      (7);
+    SELECT json_group_array(x) OVER (ROWS 2 PRECEDING) FROM t4;
+  } {{[1]} {[1,"a,b"]} {[1,"a,b",3]} {["a,b",3,"x\"y"]} {[3,"x\"y",5]} {["x\"y",5,6]} {[5,6,7]}}
+  do_execsql_test json103-410 {
+    SELECT json_group_object(rowid, x) OVER (ROWS 2 PRECEDING) FROM t4;
+  } {{{"1":1}} {{"1":1,"2":"a,b"}} {{"1":1,"2":"a,b","3":3}} {{"2":"a,b","3":3,"4":"x\"y"}} {{"3":3,"4":"x\"y","5":5}} {{"4":"x\"y","5":5,"6":6}} {{"5":5,"6":6,"7":7}}}
+}
+
+finish_test
diff --git a/test/json104.test b/test/json104.test
new file mode 100644
index 0000000000000000000000000000000000000000..c3c43d1e9861f8116ebc7d4647b33c6dc4e83b30
--- /dev/null
+++ b/test/json104.test
@@ -0,0 +1,195 @@
+# 2017-03-22
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements tests for json_patch(A,B) SQL function.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix json104
+
+# This is the example from pages 2 and 3 of RFC-7396
+do_execsql_test json104-100 {
+  SELECT json_patch('{
+       "a": "b",
+       "c": {
+         "d": "e",
+         "f": "g"
+       }
+     }','{
+       "a":"z",
+       "c": {
+         "f": null
+       }
+     }');
+} {{{"a":"z","c":{"d":"e"}}}}
+do_execsql_test json104-101 {
+  SELECT json_patch('{
+       "a": "b",
+       "c": {
+         "d": "e",
+         "f": "g"
+       }
+     }','{
+       a:"z",
+       c: {
+         f: null
+       }
+     }');
+} {{{"a":"z","c":{"d":"e"}}}}
+do_execsql_test json104-102 {
+  SELECT json_patch('{
+       a: "b",
+       c: {
+         d: "e",
+         f: "g"
+       }
+     }','{
+       "a":"z",
+       "c": {
+         "f": null
+       }
+     }');
+} {{{"a":"z","c":{"d":"e"}}}}
+do_execsql_test json104-103 {
+  SELECT json_patch('{
+       a: "b",
+       c: {
+         d: "e",
+         f: "g"
+       }
+     }','{
+       a:"z",
+       c: {
+         f: null
+       }
+     }');
+} {{{"a":"z","c":{"d":"e"}}}}
+
+
+# This is the example from pages 4 and 5 of RFC-7396 
+do_execsql_test json104-110 {
+  SELECT json_patch('{
+       "title": "Goodbye!",
+       "author" : {
+         "givenName" : "John",
+         "familyName" : "Doe"
+       },
+       "tags":[ "example", "sample" ],
+       "content": "This will be unchanged"
+     }','{
+       "title": "Hello!",
+       "phoneNumber": "+01-123-456-7890",
+       "author": {
+         "familyName": null
+       },
+       "tags": [ "example" ]
+     }');
+} {{{"title":"Hello!","author":{"givenName":"John"},"tags":["example"],"content":"This will be unchanged","phoneNumber":"+01-123-456-7890"}}}
+
+do_execsql_test json104-200 {
+  SELECT json_patch('[1,2,3]','{"x":null}');
+} {{{}}}
+do_execsql_test json104-210 {
+  SELECT json_patch('[1,2,3]','{"x":null,"y":1,"z":null}');
+} {{{"y":1}}}
+do_execsql_test json104-220 {
+  SELECT json_patch('{}','{"a":{"bb":{"ccc":null}}}');
+} {{{"a":{"bb":{}}}}}
+do_execsql_test json104-221 {
+  SELECT json_patch('{}','{"a":{"bb":{"ccc":[1,null,3]}}}');
+} {{{"a":{"bb":{"ccc":[1,null,3]}}}}}
+do_execsql_test json104-222 {
+  SELECT json_patch('{}','{"a":{"bb":{"ccc":[1,{"dddd":null},3]}}}');
+} {{{"a":{"bb":{"ccc":[1,{"dddd":null},3]}}}}}
+
+# Example test cases at the end of the RFC-7396 document
+do_execsql_test json104-300 {
+  SELECT json_patch('{"a":"b"}','{"a":"c"}');
+} {{{"a":"c"}}}
+do_execsql_test json104-300a {
+  SELECT coalesce(json_patch(null,'{"a":"c"}'), 'real-null');
+} {{real-null}}
+do_execsql_test json104-301 {
+  SELECT json_patch('{"a":"b"}','{"b":"c"}');
+} {{{"a":"b","b":"c"}}}
+do_execsql_test json104-302 {
+  SELECT json_patch('{"a":"b"}','{"a":null}');
+} {{{}}}
+do_execsql_test json104-303 {
+  SELECT json_patch('{"a":"b","b":"c"}','{"a":null}');
+} {{{"b":"c"}}}
+do_execsql_test json104-304 {
+  SELECT json_patch('{"a":["b"]}','{"a":"c"}');
+} {{{"a":"c"}}}
+do_execsql_test json104-305 {
+  SELECT json_patch('{"a":"c"}','{"a":["b"]}');
+} {{{"a":["b"]}}}
+do_execsql_test json104-306 {
+  SELECT json_patch('{"a":{"b":"c"}}','{"a":{"b":"d","c":null}}');
+} {{{"a":{"b":"d"}}}}
+do_execsql_test json104-307 {
+  SELECT json_patch('{"a":[{"b":"c"}]}','{"a":[1]}');
+} {{{"a":[1]}}}
+do_execsql_test json104-308 {
+  SELECT json_patch('["a","b"]','["c","d"]');
+} {{["c","d"]}}
+do_execsql_test json104-309 {
+  SELECT json_patch('{"a":"b"}','["c"]');
+} {{["c"]}}
+do_execsql_test json104-310 {
+  SELECT json_patch('{"a":"foo"}','null');
+} {{null}}
+do_execsql_test json104-310a {
+  SELECT coalesce(json_patch('{"a":"foo"}',null), 'real-null');
+} {{real-null}}
+do_execsql_test json104-311 {
+  SELECT json_patch('{"a":"foo"}','"bar"');
+} {{"bar"}}
+do_execsql_test json104-312 {
+  SELECT json_patch('{"e":null}','{"a":1}');
+} {{{"e":null,"a":1}}}
+do_execsql_test json104-313 {
+  SELECT json_patch('[1,2]','{"a":"b","c":null}');
+} {{{"a":"b"}}}
+do_execsql_test json104-314 {
+  SELECT json_patch('{}','{"a":{"bb":{"ccc":null}}}');
+} {{{"a":{"bb":{}}}}}
+do_execsql_test json104-320 {
+  SELECT json_patch('{"x":{"one":1}}','{"x":{"two":2},"x":"three"}');
+} {{{"x":"three"}}}
+
+#-------------------------------------------------------------------------
+
+do_execsql_test 401 {
+  CREATE TABLE obj(x);
+  INSERT INTO obj VALUES('{"a":1,"b":2}');
+  SELECT * FROM obj;
+} {{{"a":1,"b":2}}}
+do_execsql_test 402 {
+  UPDATE obj SET x = json_insert(x, '$.c', 3);
+  SELECT * FROM obj;
+} {{{"a":1,"b":2,"c":3}}}
+do_execsql_test 403 {
+  SELECT json_extract(x, '$.b') FROM obj;
+  SELECT json_extract(x, '$."b"') FROM obj;
+} {2 2}
+do_execsql_test 404 {
+  UPDATE obj SET x = json_set(x, '$."b"', 555);
+  SELECT json_extract(x, '$.b') FROM obj;
+  SELECT json_extract(x, '$."b"') FROM obj;
+} {555 555}
+do_execsql_test 405 {
+  UPDATE obj SET x = json_set(x, '$."d"', 4);
+  SELECT json_extract(x, '$."d"') FROM obj;
+} {4}
+
+
+finish_test
diff --git a/test/json105.test b/test/json105.test
new file mode 100644
index 0000000000000000000000000000000000000000..509db94e1178ef051b8d19474d9642cfa03e5bd8
--- /dev/null
+++ b/test/json105.test
@@ -0,0 +1,113 @@
+# 2019-11-22
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements tests for "[#]" extension to json-path
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix json105
+
+# This is the example from pages 2 and 3 of RFC-7396
+db eval {
+  CREATE TABLE t1(j);
+  INSERT INTO t1(j) VALUES('{"a":1,"b":[1,[2,3],4],"c":99}');
+}
+proc json_extract_test {testnum path result} {
+  do_execsql_test json105-1.$testnum "SELECT quote(json_extract(j,$path)) FROM t1" $result
+}
+json_extract_test 10 {'$.b[#]'}   NULL
+json_extract_test 20 {'$.b[#-1]'} 4
+json_extract_test 30 {'$.b[#-2]'} {'[2,3]'}
+json_extract_test 31 {'$.b[#-02]'} {'[2,3]'}
+json_extract_test 40 {'$.b[#-3]'} 1
+json_extract_test 50 {'$.b[#-4]'} NULL
+json_extract_test 60 {'$.b[#-2][#-1]'} 3
+json_extract_test 70 {'$.b[0]','$.b[#-1]'} {'[1,4]'}
+
+json_extract_test 100 {'$.a[#-1]'} NULL
+json_extract_test 110 {'$.b[#-000001]'} 4
+
+proc json_remove_test {testnum path result} {
+  do_execsql_test json105-2.$testnum "SELECT quote(json_remove(j,$path)) FROM t1" $result
+}
+json_remove_test 10 {'$.b[#]'}    {'{"a":1,"b":[1,[2,3],4],"c":99}'}
+json_remove_test 20 {'$.b[#-0]'}  {'{"a":1,"b":[1,[2,3],4],"c":99}'}
+json_remove_test 30 {'$.b[#-1]'}  {'{"a":1,"b":[1,[2,3]],"c":99}'}
+json_remove_test 40 {'$.b[#-2]'}  {'{"a":1,"b":[1,4],"c":99}'}
+json_remove_test 50 {'$.b[#-3]'}  {'{"a":1,"b":[[2,3],4],"c":99}'}
+json_remove_test 60 {'$.b[#-4]'}  {'{"a":1,"b":[1,[2,3],4],"c":99}'}
+json_remove_test 70 {'$.b[#-2][#-1]'}  {'{"a":1,"b":[1,[2],4],"c":99}'}
+
+json_remove_test 100 {'$.b[0]','$.b[#-1]'} {'{"a":1,"b":[[2,3]],"c":99}'}
+json_remove_test 110 {'$.b[#-1]','$.b[0]'} {'{"a":1,"b":[[2,3]],"c":99}'}
+json_remove_test 120 {'$.b[#-1]','$.b[#-2]'} {'{"a":1,"b":[[2,3]],"c":99}'}
+json_remove_test 130 {'$.b[#-1]','$.b[#-1]'} {'{"a":1,"b":[1],"c":99}'}
+json_remove_test 140 {'$.b[#-2]','$.b[#-1]'} {'{"a":1,"b":[1],"c":99}'}
+
+proc json_insert_test {testnum x result} {
+  do_execsql_test json105-3.$testnum "SELECT quote(json_insert(j,$x)) FROM t1" $result
+}
+json_insert_test 10 {'$.b[#]','AAA'} {'{"a":1,"b":[1,[2,3],4,"AAA"],"c":99}'}
+json_insert_test 20 {'$.b[1][#]','AAA'} {'{"a":1,"b":[1,[2,3,"AAA"],4],"c":99}'}
+json_insert_test 30 {'$.b[1][#]','AAA','$.b[#]','BBB'} \
+     {'{"a":1,"b":[1,[2,3,"AAA"],4,"BBB"],"c":99}'}
+json_insert_test 40 {'$.b[#]','AAA','$.b[#]','BBB'} \
+     {'{"a":1,"b":[1,[2,3],4,"AAA","BBB"],"c":99}'}
+
+proc json_set_test {testnum x result} {
+  do_execsql_test json105-4.$testnum "SELECT quote(json_set(j,$x)) FROM t1" $result
+}
+json_set_test 10 {'$.b[#]','AAA'} {'{"a":1,"b":[1,[2,3],4,"AAA"],"c":99}'}
+json_set_test 20 {'$.b[1][#]','AAA'} {'{"a":1,"b":[1,[2,3,"AAA"],4],"c":99}'}
+json_set_test 30 {'$.b[1][#]','AAA','$.b[#]','BBB'} \
+     {'{"a":1,"b":[1,[2,3,"AAA"],4,"BBB"],"c":99}'}
+json_set_test 40 {'$.b[#]','AAA','$.b[#]','BBB'} \
+     {'{"a":1,"b":[1,[2,3],4,"AAA","BBB"],"c":99}'}
+json_set_test 50 {'$.b[#-1]','AAA'} {'{"a":1,"b":[1,[2,3],"AAA"],"c":99}'}
+json_set_test 60 {'$.b[1][#-1]','AAA'} {'{"a":1,"b":[1,[2,"AAA"],4],"c":99}'}
+json_set_test 70 {'$.b[1][#-1]','AAA','$.b[#-1]','BBB'} \
+     {'{"a":1,"b":[1,[2,"AAA"],"BBB"],"c":99}'}
+json_set_test 80 {'$.b[#-1]','AAA','$.b[#-1]','BBB'} \
+     {'{"a":1,"b":[1,[2,3],"BBB"],"c":99}'}
+
+proc json_replace_test {testnum x result} {
+  do_execsql_test json105-5.$testnum "SELECT quote(json_replace(j,$x)) FROM t1" $result
+}
+json_replace_test 10 {'$.b[#]','AAA'} {'{"a":1,"b":[1,[2,3],4],"c":99}'}
+json_replace_test 20 {'$.b[1][#]','AAA'} {'{"a":1,"b":[1,[2,3],4],"c":99}'}
+json_replace_test 30 {'$.b[1][#]','AAA','$.b[#]','BBB'} \
+     {'{"a":1,"b":[1,[2,3],4],"c":99}'}
+json_replace_test 40 {'$.b[#]','AAA','$.b[#]','BBB'} \
+     {'{"a":1,"b":[1,[2,3],4],"c":99}'}
+json_replace_test 50 {'$.b[#-1]','AAA'} {'{"a":1,"b":[1,[2,3],"AAA"],"c":99}'}
+json_replace_test 60 {'$.b[1][#-1]','AAA'} {'{"a":1,"b":[1,[2,"AAA"],4],"c":99}'}
+json_replace_test 70 {'$.b[1][#-1]','AAA','$.b[#-1]','BBB'} \
+     {'{"a":1,"b":[1,[2,"AAA"],"BBB"],"c":99}'}
+json_replace_test 80 {'$.b[#-1]','AAA','$.b[#-1]','BBB'} \
+     {'{"a":1,"b":[1,[2,3],"BBB"],"c":99}'}
+
+do_catchsql_test json105-6.10 {
+  SELECT json_extract(j, '$.b[#-]') FROM t1;
+} {1 {bad JSON path: '$.b[#-]'}}
+do_catchsql_test json105-6.20 {
+  SELECT json_extract(j, '$.b[#9]') FROM t1;
+} {1 {bad JSON path: '$.b[#9]'}}
+do_catchsql_test json105-6.30 {
+  SELECT json_extract(j, '$.b[#+2]') FROM t1;
+} {1 {bad JSON path: '$.b[#+2]'}}
+do_catchsql_test json105-6.40 {
+  SELECT json_extract(j, '$.b[#-1') FROM t1;
+} {1 {bad JSON path: '$.b[#-1'}}
+do_catchsql_test json105-6.50 {
+  SELECT json_extract(j, '$.b[#-1x]') FROM t1;
+} {1 {bad JSON path: '$.b[#-1x]'}}
+
+finish_test
diff --git a/test/json106.test b/test/json106.test
new file mode 100644
index 0000000000000000000000000000000000000000..06859a10b44643876a2b564d9bb7dc9b82f49adf
--- /dev/null
+++ b/test/json106.test
@@ -0,0 +1,79 @@
+# 2023-12-18
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# Invariant tests for JSON built around the randomjson extension
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix json106
+
+# These tests require virtual table "json_tree" to run.
+ifcapable !vtab { finish_test ; return }
+
+load_static_extension db randomjson
+db eval {
+  CREATE TEMP TABLE t1(j0,j5,p);
+  CREATE TEMP TABLE kv(n,key,val);
+}
+unset -nocomplain ii
+for {set ii 1} {$ii<=5000} {incr ii} {
+  do_execsql_test $ii.1 {
+    DELETE FROM t1;
+    INSERT INTO t1(j0,j5) VALUES(random_json($ii),random_json5($ii));
+    SELECT json_valid(j0), json_valid(j5,2) FROM t1;
+  } {1 1}
+  do_execsql_test $ii.2 {
+    SELECT count(*)
+      FROM t1, json_tree(j0) AS rt
+     WHERE rt.type NOT IN ('object','array')
+       AND rt.atom IS NOT (j0 ->> rt.fullkey);
+  } 0
+  do_execsql_test $ii.3 {
+    SELECT count(*)
+      FROM t1, json_tree(j5) AS rt
+     WHERE rt.type NOT IN ('object','array')
+       AND rt.atom IS NOT (j0 ->> rt.fullkey);
+  } 0
+  do_execsql_test $ii.4 {
+    DELETE FROM kv;
+    INSERT INTO kv
+      SELECT rt.rowid, rt.fullkey, rt.atom
+        FROM t1, json_tree(j0) AS rt
+       WHERE rt.type NOT IN ('object','array');
+  }
+  do_execsql_test $ii.5 {
+    SELECT count(*)
+      FROM t1, kv
+     WHERE key NOT LIKE '%]'
+       AND json_remove(j5,key)->>key IS NOT NULL
+  } 0
+  do_execsql_test $ii.6 {
+    SELECT count(*)
+      FROM t1, kv
+     WHERE key NOT LIKE '%]'
+       AND json_insert(json_remove(j5,key),key,val)->>key IS NOT val
+  } 0
+  do_execsql_test $ii.7 {
+    UPDATE t1 SET p=json_patch(j0,j5);
+    SELECT count(*)
+      FROM t1, kv
+     WHERE p->>key IS NOT val
+  } 0
+  do_execsql_test $ii.8 {
+    SELECT j0 FROM t1 WHERE json(j0)!=json(json_pretty(j0));
+  } {}
+  do_execsql_test $ii.9 {
+    SELECT j5 FROM t1 WHERE json(j5)!=json(json_pretty(j5));
+  } {}
+}
+
+
+finish_test
diff --git a/test/json107.test b/test/json107.test
new file mode 100644
index 0000000000000000000000000000000000000000..779b557fba7bc29e109384ae4a28a63654e2d8e0
--- /dev/null
+++ b/test/json107.test
@@ -0,0 +1,86 @@
+# 2024-01-23
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+# Legacy JSON bug:  If the input is a BLOB that when cast into TEXT looks
+# like valid JSON, then treat it as valid JSON.
+#
+# The original intent of the JSON functions was to raise an error on any
+# BLOB input.  That intent was clearly documented, but the code failed to
+# to implement it.  Subsequently, many applications began to depend on the
+# incorrect behavior, especially apps that used readfile() to read JSON
+# content, since readfile() returns a BLOB.  So we need to support the
+# bug moving forward.
+#
+# The tests in this fail verify that the original buggy behavior is
+# preserved.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix json107
+
+if {[db one {PRAGMA encoding}]!="UTF-8"} {
+  # These tests only work for a UTF-8 encoding.
+  finish_test
+  return
+}
+
+do_execsql_test 1.1 {
+  SELECT json_valid( CAST('{"a":1}' AS BLOB) );
+} 1
+do_execsql_test 1.1.1 {
+  SELECT json_valid( CAST('{"a":1}' AS BLOB), 1);
+} 1
+do_execsql_test 1.1.2 {
+  SELECT json_valid( CAST('{"a":1}' AS BLOB), 2);
+} 1
+do_execsql_test 1.1.4 {
+  SELECT json_valid( CAST('{"a":1}' AS BLOB), 4);
+} 0
+do_execsql_test 1.1.8 {
+  SELECT json_valid( CAST('{"a":1}' AS BLOB), 8);
+} 0
+
+do_execsql_test 1.2.1 {
+  SELECT CAST('{"a":123}' AS blob) -> 'a';
+} 123
+do_execsql_test 1.2.2 {
+  SELECT CAST('{"a":123}' AS blob) ->> 'a';
+} 123
+do_execsql_test 1.2.3 {
+  SELECT json_extract(CAST('{"a":123}' AS blob), '$.a');
+} 123
+do_execsql_test 1.3 {
+  SELECT json_insert(CAST('{"a":123}' AS blob),'$.b',456);
+} {{{"a":123,"b":456}}}
+do_execsql_test 1.4 {
+  SELECT json_remove(CAST('{"a":123,"b":456}' AS blob),'$.a');
+} {{{"b":456}}}
+do_execsql_test 1.5 {
+  SELECT json_set(CAST('{"a":123,"b":456}' AS blob),'$.a',789);
+} {{{"a":789,"b":456}}}
+do_execsql_test 1.6 {
+  SELECT json_replace(CAST('{"a":123,"b":456}' AS blob),'$.a',789);
+} {{{"a":789,"b":456}}}
+do_execsql_test 1.7 {
+  SELECT json_type(CAST('{"a":123,"b":456}' AS blob));
+} object
+do_execsql_test 1.8 {
+  SELECT json(CAST('{"a":123,"b":456}' AS blob));
+} {{{"a":123,"b":456}}}
+
+ifcapable vtab {
+  do_execsql_test 2.1 {
+    SELECT key, value FROM json_tree( CAST('{"a":123,"b":456}' AS blob) )
+      WHERE atom;
+  } {a 123 b 456}
+} 
+finish_test
diff --git a/test/json108.test b/test/json108.test
new file mode 100644
index 0000000000000000000000000000000000000000..71f3814dce5df406d88605d286d3162b92eb91e1
--- /dev/null
+++ b/test/json108.test
@@ -0,0 +1,45 @@
+# 2024-03-06
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# Invariant tests for JSON built around the randomjson extension
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix json108
+
+# These tests require virtual table "json_tree" to run.
+ifcapable !vtab { finish_test ; return }
+
+load_static_extension db randomjson
+db eval {
+  CREATE TEMP TABLE t1(j0,j5);
+  WITH RECURSIVE c(n) AS (VALUES(0) UNION ALL SELECT n+1 FROM c WHERE n<9)
+  INSERT INTO t1 SELECT random_json(n), random_json5(n) FROM c;
+}
+
+do_execsql_test 1.1 {
+  SELECT count(*) FROM t1 WHERE json(j0)==json(json_pretty(j0,NULL));
+} 10
+do_execsql_test 1.2 {
+  SELECT count(*) FROM t1 WHERE json(j0)==json(json_pretty(j0,NULL));
+} 10
+do_execsql_test 1.3 {
+  SELECT count(*) FROM t1 WHERE json(j0)==json(json_pretty(j0,''));
+} 10
+do_execsql_test 1.4 {
+  SELECT count(*) FROM t1 WHERE json(j0)==json(json_pretty(j0,char(9)));
+} 10
+do_execsql_test 1.5 {
+  SELECT count(*) FROM t1 WHERE json(j0)==json(json_pretty(j0,'/*hello*/'));
+} 10
+
+
+finish_test
diff --git a/test/json501.test b/test/json501.test
new file mode 100644
index 0000000000000000000000000000000000000000..bfd21055a7ec67632ca977980a1b48928c77721b
--- /dev/null
+++ b/test/json501.test
@@ -0,0 +1,336 @@
+# 2023-04-27
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements tests for the JSON5 enhancements to the
+# JSON SQL functions extension to the SQLite library.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix json501
+
+# From https://spec.json5.org/#introduction
+#
+#-----------------------------------------------------------------------------
+# Summary of Features
+# 
+# The following ECMAScript 5.1 features, which are not supported in JSON, have
+# been extended to JSON5. 
+#
+# Objects
+#
+#    1) Object keys may be an ECMAScript 5.1 IdentifierName.
+#    2) Objects may have a single trailing comma.
+#
+# Arrays
+#
+#    3) Arrays may have a single trailing comma.
+#
+# Strings
+#
+#    4) Strings may be single quoted.
+#    5) Strings may span multiple lines by escaping new line characters.
+#    6) Strings may include character escapes.
+#
+# Numbers
+#
+#    7) Numbers may be hexadecimal.
+#    8) Numbers may have a leading or trailing decimal point.
+#    9) Numbers may be IEEE 754 positive infinity, negative infinity, and NaN.
+#   10) Numbers may begin with an explicit plus sign.
+#
+# Comments
+#
+#   11) Single and multi-line comments are allowed.
+#
+# White Space
+#
+#   12) Additional white space characters are allowed.
+#-----------------------------------------------------------------------------
+#
+# Test number in this file are of the form X.Y where X is one of the item
+# numbers in the feature list above and Y is the test sequence number.
+#
+
+###############################################################################
+#    1) Object keys may be an ECMAScript 5.1 IdentifierName.
+do_execsql_test 1.1 {
+  WITH c(x) AS (VALUES('{a:5,b:6}'))
+  SELECT x->>'a', json(x), json_valid(x), NOT json_error_position(x) FROM c;
+} {5 {{"a":5,"b":6}} 0 1}
+do_execsql_test 1.2 {
+  SELECT '[7,null,{a:5,b:6},[8,9]]'->>'$[2].b';
+} {6}
+do_execsql_test 1.3 {
+  SELECT '{ $123 : 789 }'->>'$."$123"';
+} 789
+do_execsql_test 1.4 {
+  SELECT '{ _123$xyz : 789 }'->>'$."_123$xyz"';
+} 789
+do_execsql_test 1.5 {
+  SELECT '{ MNO_123$xyz : 789 }'->>'$."MNO_123$xyz"';
+} 789
+
+do_execsql_test 1.6 {
+  SELECT json('{ MNO_123$xyz : 789 }');
+} [list {{"MNO_123$xyz":789}}]
+
+do_catchsql_test 1.10 {
+  SELECT json('{ MNO_123/xyz : 789 }');
+} {1 {malformed JSON}}
+
+do_execsql_test 1.11 {
+  SELECT '{ MNO_123æxyz : 789 }'->>'MNO_123æxyz';
+} {789}
+
+###############################################################################
+#    2) Objects may have a single trailing comma.
+
+do_execsql_test 2.1 {
+  WITH c(x) AS (VALUES('{"a":5, "b":6, }'))
+  SELECT x->>'b', json(x), json_valid(x), NOT json_error_position(x) FROM c;
+} {6 {{"a":5,"b":6}} 0 1}
+do_execsql_test 2.2 {
+  SELECT '{a:5, b:6 , }'->>'b';
+} 6
+do_catchsql_test 2.3 {
+  SELECT '{a:5, b:6 ,, }'->>'b';
+} {1 {malformed JSON}}
+do_catchsql_test 2.4 {
+  SELECT '{a:5, b:6, ,}'->>'b';
+} {1 {malformed JSON}}
+
+###############################################################################
+#    3) Arrays may have a single trailing comma.
+
+do_execsql_test 3.1 {
+  WITH c(x) AS (VALUES('[5, 6,]'))
+  SELECT x->>1, json(x), json_valid(x), NOT json_error_position(x) FROM c;
+} {6 {[5,6]} 0 1}
+do_execsql_test 3.2 {
+  SELECT '[5, 6 , ]'->>1;
+} 6
+do_catchsql_test 3.3 {
+  SELECT '[5, 6,,]'->>1;
+} {1 {malformed JSON}}
+do_catchsql_test 3.4 {
+  SELECT '[5, 6 , , ]'->>1;
+} {1 {malformed JSON}}
+
+###############################################################################
+#    4) Strings may be single quoted.
+
+do_execsql_test 4.1 {
+  WITH c(x) AS (VALUES('{"a": ''abcd''}'))
+  SELECT x->>'a', json(x), json_valid(x), NOT json_error_position(x) FROM c;
+} {abcd {{"a":"abcd"}} 0 1}
+do_execsql_test 4.2 {
+  SELECT '{b: 123, ''a'': ''ab\''cd''}'->>'a';
+} {ab'cd}
+
+###############################################################################
+#    5) Strings may span multiple lines by escaping new line characters.
+
+do_execsql_test 5.1 {
+  WITH c(x) AS (VALUES('{a: "abc'||char(0x5c,0x0a)||'xyz"}'))
+  SELECT x->>'a', json(x), json_valid(x), NOT json_error_position(x) FROM c;
+} {abcxyz {{"a":"abcxyz"}} 0 1}
+do_execsql_test 5.2 {
+  SELECT ('{a: "abc'||char(0x5c,0x0d)||'xyz"}')->>'a';
+} {abcxyz}
+do_execsql_test 5.3 {
+  SELECT ('{a: "abc'||char(0x5c,0x0d,0x0a)||'xyz"}')->>'a';
+} {abcxyz}
+do_execsql_test 5.4 {
+  SELECT ('{a: "abc'||char(0x5c,0x2028)||'xyz"}')->>'a';
+} {abcxyz}
+do_execsql_test 5.5 {
+  SELECT ('{a: "abc'||char(0x5c,0x2029)||'xyz"}')->>'a';
+} {abcxyz}
+
+
+###############################################################################
+#    6) Strings may include character escapes.
+
+do_execsql_test 6.1 {
+  SELECT ('{a: "abc'||char(0x5c,0x27)||'xyz"}')->>'a';
+} {abc'xyz}
+do_execsql_test 6.2 {
+  SELECT ('{a: "abc'||char(0x5c,0x22)||'xyz"}')->>'a';
+} {abc"xyz}
+do_execsql_test 6.3 {
+  SELECT ('{a: "abc'||char(0x5c,0x5c)||'xyz"}')->>'a';
+} {{abc\xyz}}
+do_execsql_test 6.4 {
+  SELECT hex(('{a: "abc\bxyz"}')->>'a');
+} {6162630878797A}
+do_execsql_test 6.5 {
+  SELECT hex(('{a: "abc\f\n\r\t\vxyz"}')->>'a');
+} {6162630C0A0D090B78797A}
+do_execsql_test 6.6 {
+  SELECT hex(('{a: "abc\0xyz"}')->>'a');
+} {6162630078797A}
+do_execsql_test 6.7 {
+  SELECT '{a: "abc\x35\x4f\x6Exyz"}'->>'a';
+} {abc5Onxyz}
+do_execsql_test 6.8 {
+  SELECT '{a: "\x6a\x6A\x6b\x6B\x6c\x6C\x6d\x6D\x6e\x6E\x6f\x6F"}'->>'a';
+} {jjkkllmmnnoo}
+
+###############################################################################
+#    7) Numbers may be hexadecimal.
+
+do_execsql_test 7.1 {
+  SELECT '{a: 0x0}'->>'a';
+} 0
+do_execsql_test 7.2 {
+  SELECT '{a: -0x0}'->>'a';
+} 0
+do_execsql_test 7.3 {
+  SELECT '{a: +0x0}'->>'a';
+} 0
+do_execsql_test 7.4 {
+  SELECT '{a: 0xabcdef}'->>'a';
+} 11259375
+do_execsql_test 7.5 {
+  SELECT '{a: -0xaBcDeF}'->>'a';
+} -11259375
+do_execsql_test 7.6 {
+  SELECT '{a: +0xABCDEF}'->>'a';
+} 11259375
+
+###############################################################################
+#    8) Numbers may have a leading or trailing decimal point.
+
+do_execsql_test 8.1 {
+  WITH c(x) AS (VALUES('{x: 4.}')) SELECT x->>'x', json(x) FROM c;
+} {4.0 {{"x":4.0}}}
+do_execsql_test 8.2 {
+  WITH c(x) AS (VALUES('{x: +4.}')) SELECT x->>'x', json(x) FROM c;
+} {4.0 {{"x":4.0}}}
+do_execsql_test 8.3 {
+  WITH c(x) AS (VALUES('{x: -4.}')) SELECT x->>'x', json(x) FROM c;
+} {-4.0 {{"x":-4.0}}}
+do_execsql_test 8.3 {
+  WITH c(x) AS (VALUES('{x: .5}')) SELECT x->>'x', json(x) FROM c;
+} {0.5 {{"x":0.5}}}
+do_execsql_test 8.4 {
+  WITH c(x) AS (VALUES('{x: -.5}')) SELECT x->>'x', json(x) FROM c;
+} {-0.5 {{"x":-0.5}}}
+do_execsql_test 8.5 {
+  WITH c(x) AS (VALUES('{x: +.5}')) SELECT x->>'x', json(x) FROM c;
+} {0.5 {{"x":0.5}}}
+do_execsql_test 8.6 {
+  WITH c(x) AS (VALUES('{x: 4.e0}')) SELECT x->>'x', json(x) FROM c;
+} {4.0 {{"x":4.0e0}}}
+do_execsql_test 8.7 {
+  WITH c(x) AS (VALUES('{x: +4.e1}')) SELECT x->>'x', json(x) FROM c;
+} {40.0 {{"x":4.0e1}}}
+do_execsql_test 8.8 {
+  WITH c(x) AS (VALUES('{x: -4.e2}')) SELECT x->>'x', json(x) FROM c;
+} {-400.0 {{"x":-4.0e2}}}
+do_execsql_test 8.9 {
+  WITH c(x) AS (VALUES('{x: .5e3}')) SELECT x->>'x', json(x) FROM c;
+} {500.0 {{"x":0.5e3}}}
+do_execsql_test 8.10 {
+  WITH c(x) AS (VALUES('{x: -.5e-1}')) SELECT x->>'x', json(x) FROM c;
+} {-0.05 {{"x":-0.5e-1}}}
+do_execsql_test 8.11 {
+  WITH c(x) AS (VALUES('{x: +.5e-2}')) SELECT x->>'x', json(x) FROM c;
+} {0.005 {{"x":0.5e-2}}}
+
+
+###############################################################################
+#    9) Numbers may be IEEE 754 positive infinity, negative infinity, and NaN.
+
+do_execsql_test 9.1 {
+  WITH c(x) AS (VALUES('{x: +Infinity}')) SELECT x->>'x', json(x) FROM c;
+} {Inf {{"x":9e999}}}
+do_execsql_test 9.2 {
+  WITH c(x) AS (VALUES('{x: -Infinity}')) SELECT x->>'x', json(x) FROM c;
+} {-Inf {{"x":-9e999}}}
+do_execsql_test 9.3 {
+  WITH c(x) AS (VALUES('{x: Infinity}')) SELECT x->>'x', json(x) FROM c;
+} {Inf {{"x":9e999}}}
+do_execsql_test 9.4 {
+  WITH c(x) AS (VALUES('{x: NaN}')) SELECT x->>'x', json(x) FROM c;
+} {{} {{"x":null}}}
+
+###############################################################################
+#   10) Numbers may begin with an explicit plus sign.
+
+do_execsql_test 10.1 {
+  SELECT '{a: +123}'->'a';
+} 123
+
+###############################################################################
+#   11) Single and multi-line comments are allowed.
+
+do_execsql_test 11.1 {
+  SELECT ' /* abc */ { /*def*/ aaa /* xyz */ : // to the end of line
+          123 /* xyz */ , /* 123 */ }'->>'aaa';
+} 123
+
+###############################################################################
+#   12) Additional white space characters are allowed.
+
+do_execsql_test 12.1 {
+  SELECT (char(0x09,0x0a,0x0b,0x0c,0x0d,0x20,0xa0,0x2028,0x2029)
+          || '{a: "xyz"}')->>'a';
+} xyz
+do_execsql_test 12.2 {
+  SELECT ('{a:' || char(0x09,0x0a,0x0b,0x0c,0x0d,0x20,0xa0,0x2028,0x2029)
+          || '"xyz"}')->>'a';
+} xyz
+do_execsql_test 12.3 {
+  SELECT (char(0x1680,0x2000,0x2001,0x2002,0x2003,0x2004,0x2005,
+               0x2006,0x2007,0x2008,0x2009,0x200a,0x3000,0xfeff)
+          || '{a: "xyz"}')->>'a';
+} xyz
+do_execsql_test 12.4 {
+  SELECT ('{a: ' ||char(0x1680,0x2000,0x2001,0x2002,0x2003,0x2004,0x2005,
+                        0x2006,0x2007,0x2008,0x2009,0x200a,0x3000,0xfeff)
+          || ' "xyz"}')->>'a';
+} xyz
+
+# 2023-11-08 forum/forumpost/ddcad3e884
+#
+do_execsql_test 13.1 {
+  SELECT json('{x:''a "b" c''}');
+} {{{"x":"a \"b\" c"}}}
+
+# 2024-01-31
+# Allow control characters within JSON5 string literals.
+#
+for {set c 1} {$c<=0x1f} {incr c} {
+  do_execsql_test 14.$c.1 {
+    SELECT json_valid('"abc' || char($c) || 'xyz"');
+  } {0}
+  do_execsql_test 14.$c.2 {
+    SELECT json_valid('"abc' || char($c) || 'xyz"', 2);
+  } {1}
+  switch $c {
+    8   {set e "\\b"}
+    9   {set e "\\t"}
+    10  {set e "\\n"}
+    12  {set e "\\f"}
+    13  {set e "\\r"}
+    default {set e [format "\\u00%02x" $c]}
+  }
+  do_execsql_test 14.$c.3 {
+    SELECT json('{label:"abc' || char($c) || 'xyz"}');
+  } "{{\"label\":\"abc${e}xyz\"}}"
+  do_execsql_test 14.$c.4 {
+    SELECT jsonb('{label:"abc' || char($c) || 'xyz"}') -> '$';
+  } "{{\"label\":\"abc${e}xyz\"}}"
+}
+
+
+finish_test
diff --git a/test/json502.test b/test/json502.test
new file mode 100644
index 0000000000000000000000000000000000000000..1eba00dba5b230c943770422abf5626380ddbc50
--- /dev/null
+++ b/test/json502.test
@@ -0,0 +1,80 @@
+# 2023-04-28
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements tests for the JSON5 enhancements to the
+# JSON SQL functions extension to the SQLite library.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix json502
+
+ifcapable vtab {
+
+do_execsql_test 1.1 {
+  CREATE TABLE t1(x JSON);
+  INSERT INTO t1(x) VALUES('{a:{b:{c:"hello",},},}');
+  SELECT fullkey FROM t1, json_tree(x);
+} {{$} {$.a} {$.a.b} {$.a.b.c}}
+
+}
+
+do_execsql_test 2.1 {
+  SELECT json_error_position('{a:null,{"h":[1,[1,2,3]],"j":"abc"}:true}');
+} 9
+do_catchsql_test 2.2 {
+  SELECT json('{a:null,{"h":[1,[1,2,3]],"j":"abc"}:true}');
+} {1 {malformed JSON}}
+do_catchsql_test 2.3 {
+  SELECT '{a:null,{"h":[1,[1,2,3]],"j":"abc"}:true}'->'$h[#-1]';
+} {1 {malformed JSON}}
+
+# Verify that escaped label names are compared correctly.
+# 
+do_execsql_test 3.1 {
+  SELECT '{"a\x62c":123}' ->> 'abc';
+} 123
+do_execsql_test 3.2 {
+  SELECT '{"abc":123}' ->> 'a\x62c';
+} 123
+
+db null null
+do_execsql_test 3.3 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(x);
+  INSERT INTO t1 VALUES(json_insert('{}','$.a\',111,'$."b\\"',222));
+  INSERT INTO t1 VALUES(jsonb_insert('{}','$.a\',111,'$."b\\"',222));
+  SELECT x->'$.a\', x->'$.a\\', x->'$."a\\"', x->'$."b\\"' FROM t1;
+} {111 null 111 222 111 null 111 222}
+
+do_execsql_test 3.4 {
+  SELECT json_patch('{"a\x62c":123}','{"ab\x63":456}') ->> 'abc';
+} 456
+
+ifcapable vtab {
+  do_execsql_test 4.1 {
+    SELECT * FROM json_tree('{"\u0017":1}','$."\x17"');
+  } {{\x17} 1 integer 1 1 null {$."\x17"} {$}}
+}
+
+# JSON PATH parsing bug involving backslash escapes, reported via
+# private email from Florent De'Neve on 2024-09-04.
+#
+do_execsql_test 5.1 {
+  SELECT json_extract('{"A\"Key":1}', '$.A"Key');
+} 1
+do_execsql_test 5.2 {
+  SELECT json_extract('{"A\"Key":1}', '$."A\"Key"');
+} 1
+do_execsql_test 5.3 {
+  SELECT JSON_SET('{}', '$."\"Key"', 1);
+} {{{"\"Key":1}}}
+
+finish_test
diff --git a/test/jsonb01.test b/test/jsonb01.test
new file mode 100644
index 0000000000000000000000000000000000000000..8f16428dccc4c42fdbb1d0cddfa25156c8e1972f
--- /dev/null
+++ b/test/jsonb01.test
@@ -0,0 +1,53 @@
+# 2023-11-15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# Test cases for JSONB
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_execsql_test jsonb01-1.1 {
+  CREATE TABLE t1(x JSON BLOB);
+  INSERT INTO t1 VALUES(jsonb('{a:5,b:{x:10,y:11},c:[1,2,3,4]}'));
+}
+foreach {id path res} {
+  1 {$.a}    {{{"b":{"x":10,"y":11},"c":[1,2,3,4]}}}
+  2 {$.b}    {{{"a":5,"c":[1,2,3,4]}}}
+  3 {$.c}    {{{"a":5,"b":{"x":10,"y":11}}}}
+  4 {$.d}    {{{"a":5,"b":{"x":10,"y":11},"c":[1,2,3,4]}}}
+  5 {$.b.x}  {{{"a":5,"b":{"y":11},"c":[1,2,3,4]}}}
+  6 {$.b.y}  {{{"a":5,"b":{"x":10},"c":[1,2,3,4]}}}
+  7 {$.c[0]}  {{{"a":5,"b":{"x":10,"y":11},"c":[2,3,4]}}}
+  8 {$.c[1]}  {{{"a":5,"b":{"x":10,"y":11},"c":[1,3,4]}}}
+  9 {$.c[2]}  {{{"a":5,"b":{"x":10,"y":11},"c":[1,2,4]}}}
+ 10 {$.c[3]}  {{{"a":5,"b":{"x":10,"y":11},"c":[1,2,3]}}}
+ 11 {$.c[4]}  {{{"a":5,"b":{"x":10,"y":11},"c":[1,2,3,4]}}}
+ 12 {$.c[#]}  {{{"a":5,"b":{"x":10,"y":11},"c":[1,2,3,4]}}}
+ 13 {$.c[#-1]}  {{{"a":5,"b":{"x":10,"y":11},"c":[1,2,3]}}}
+ 14 {$.c[#-2]}  {{{"a":5,"b":{"x":10,"y":11},"c":[1,2,4]}}}
+ 15 {$.c[#-3]}  {{{"a":5,"b":{"x":10,"y":11},"c":[1,3,4]}}}
+ 16 {$.c[#-4]}  {{{"a":5,"b":{"x":10,"y":11},"c":[2,3,4]}}}
+ 17 {$.c[#-5]}  {{{"a":5,"b":{"x":10,"y":11},"c":[1,2,3,4]}}}
+ 18 {$.c[#-6]}  {{{"a":5,"b":{"x":10,"y":11},"c":[1,2,3,4]}}}
+} {
+  do_execsql_test jsonb01-1.2.$id.1 {
+    SELECT json(jsonb_remove(x,$path)) FROM t1;
+  } $res
+  do_execsql_test jsonb01-1.2.$id.2 {
+    SELECT json_remove(x,$path) FROM t1;
+  } $res
+}
+
+do_catchsql_test jsonb01-2.0 {
+  SELECT x'8ce6ffffffff171333' -> '$';
+} {1 {malformed JSON}}
+
+finish_test
diff --git a/test/keyword1.test b/test/keyword1.test
new file mode 100644
index 0000000000000000000000000000000000000000..2bc1ff5494f059df2359a28fa08e490dcaeab770
--- /dev/null
+++ b/test/keyword1.test
@@ -0,0 +1,121 @@
+# 2009 January 29
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Verify that certain keywords can be used as identifiers.
+#
+# $Id: keyword1.test,v 1.1 2009/01/29 19:27:47 drh Exp $
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+db eval {
+  CREATE TABLE t1(a, b);
+  INSERT INTO t1 VALUES(1, 'one');
+  INSERT INTO t1 VALUES(2, 'two');
+  INSERT INTO t1 VALUES(3, 'three');
+}
+
+set kwlist {
+  abort
+  after
+  analyze
+  asc
+  attach
+  before
+  begin
+  by
+  cascade
+  cast
+  column
+  conflict
+  current_date
+  current_time
+  current_timestamp
+  database
+  deferred
+  desc
+  detach
+  end
+  each
+  exclusive
+  explain
+  fail
+  for
+  glob
+  if
+  ignore
+  immediate
+  initially
+  instead
+  key
+  like
+  match
+  of
+  offset
+  plan
+  pragma
+  query
+  raise
+  recursive
+  regexp
+  reindex
+  release
+  rename
+  replace
+  restrict
+  rollback
+  row
+  savepoint
+  temp
+  temporary
+  trigger
+  vacuum
+  view
+  virtual
+  with
+  without
+};
+set exprkw {
+  cast
+  current_date
+  current_time
+  current_timestamp
+  raise
+}
+foreach kw $kwlist {  
+  do_test keyword1-$kw.1 {
+    if {$kw=="if"} {
+      db eval "CREATE TABLE \"$kw\"($kw $kw)"
+    } else {
+      db eval "CREATE TABLE ${kw}($kw $kw)"
+    }
+    db eval "INSERT INTO $kw VALUES(99)"
+    db eval "INSERT INTO $kw SELECT a FROM t1"
+    if {[lsearch $exprkw $kw]<0} {
+      db eval "SELECT * FROM $kw ORDER BY $kw ASC"
+    } else {
+      db eval "SELECT * FROM $kw ORDER BY \"$kw\" ASC"
+    }
+  } {1 2 3 99}
+  do_test keyword1-$kw.2 {
+    if {$kw=="if"} {
+      db eval "DROP TABLE \"$kw\""
+      db eval "CREATE INDEX \"$kw\" ON t1(a)"
+    } else {
+      db eval "DROP TABLE $kw"
+      db eval "CREATE INDEX $kw ON t1(a)"
+    }
+    db eval "SELECT b FROM t1 INDEXED BY $kw WHERE a=2"
+  } {two}
+}
+
+finish_test
diff --git a/test/kvtest.c b/test/kvtest.c
new file mode 100644
index 0000000000000000000000000000000000000000..624c80b746e6338886e5605ff7f6d93d65d8b373
--- /dev/null
+++ b/test/kvtest.c
@@ -0,0 +1,1137 @@
+/*
+** 2016-12-28
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** This file implements "key-value" performance test for SQLite.  The
+** purpose is to compare the speed of SQLite for accessing large BLOBs
+** versus reading those same BLOB values out of individual files in the
+** filesystem.
+**
+** Run "kvtest" with no arguments for on-line help, or see comments below.
+**
+** HOW TO COMPILE:
+**
+** (1) Gather this source file and a recent SQLite3 amalgamation with its
+**     header into the working directory.  You should have:
+**
+**          kvtest.c       >--- this file
+**          sqlite3.c      \___ SQLite
+**          sqlite3.h      /    amlagamation & header
+**
+** (2) Run you compiler against the two C source code files.
+**
+**    (a) On linux or mac:
+**
+**        OPTS="-DSQLITE_THREADSAFE=0 -DSQLITE_OMIT_LOAD_EXTENSION"
+**        gcc -Os -I. $OPTS kvtest.c sqlite3.c -o kvtest
+**
+**             The $OPTS options can be omitted.  The $OPTS merely omit
+**             the need to link against -ldl and -lpthread, or whatever
+**             the equivalent libraries are called on your system.
+**
+**    (b) Windows with MSVC:
+**
+**        cl -I. kvtest.c sqlite3.c
+**
+** USAGE:
+**
+** (1) Create a test database by running "kvtest init" with appropriate
+**     options.  See the help message for available options.
+**
+** (2) Construct the corresponding pile-of-files database on disk using
+**     the "kvtest export" command.
+**
+** (3) Run tests using "kvtest run" against either the SQLite database or
+**     the pile-of-files database and with appropriate options.
+**
+** For example:
+**
+**       ./kvtest init x1.db --count 100000 --size 10000
+**       mkdir x1
+**       ./kvtest export x1.db x1
+**       ./kvtest run x1.db --count 10000 --max-id 1000000
+**       ./kvtest run x1 --count 10000 --max-id 1000000
+*/
+static const char zHelp[] = 
+"Usage: kvtest COMMAND ARGS...\n"
+"\n"
+"   kvtest init DBFILE --count N --size M --pagesize X\n"
+"\n"
+"        Generate a new test database file named DBFILE containing N\n"
+"        BLOBs each of size M bytes.  The page size of the new database\n"
+"        file will be X.  Additional options:\n"
+"\n"
+"           --variance V           Randomly vary M by plus or minus V\n"
+"\n"
+"   kvtest export DBFILE DIRECTORY [--tree]\n"
+"\n"
+"        Export all the blobs in the kv table of DBFILE into separate\n"
+"        files in DIRECTORY.  DIRECTORY is created if it does not previously\n"
+"        exist.  If the --tree option is used, then the blobs are written\n"
+"        into a hierarchy of directories, using names like 00/00/00,\n"
+"        00/00/01, 00/00/02, and so forth.  Without the --tree option, all\n"
+"        files are in the top-level directory with names like 000000, 000001,\n"
+"        000002, and so forth.\n"
+"\n"
+"   kvtest stat DBFILE [options]\n"
+"\n"
+"        Display summary information about DBFILE.  Options:\n"
+"\n"
+"           --vacuum               Run VACUUM on the database file\n"
+"\n"
+"   kvtest run DBFILE [options]\n"
+"\n"
+"        Run a performance test.  DBFILE can be either the name of a\n"
+"        database or a directory containing sample files.  Options:\n"
+"\n"
+"           --asc                  Read blobs in ascending order\n"
+"           --blob-api             Use the BLOB API\n"
+"           --cache-size N         Database cache size\n"
+"           --count N              Read N blobs\n"
+"           --desc                 Read blobs in descending order\n"
+"           --fsync                Synchronous file writes\n"
+"           --integrity-check      Run \"PRAGMA integrity_check\" after test\n"
+"           --max-id N             Maximum blob key to use\n"
+"           --mmap N               Mmap as much as N bytes of DBFILE\n"
+"           --multitrans           Each read or write in its own transaction\n"
+"           --nocheckpoint         Omit the checkpoint on WAL mode writes\n"
+"           --nosync               Set \"PRAGMA synchronous=OFF\"\n"
+"           --jmode MODE           Set MODE journal mode prior to starting\n"
+"           --random               Read blobs in a random order\n"
+"           --start N              Start reading with this blob key\n"
+"           --stats                Output operating stats before exiting\n"
+"           --update               Do an overwrite test\n"
+;
+
+/* Reference resources used */
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <assert.h>
+#include <string.h>
+#include "sqlite3.h"
+
+#ifndef _WIN32
+# include <unistd.h>
+#else
+  /* Provide Windows equivalent for the needed parts of unistd.h */
+# include <direct.h>
+# include <io.h>
+# define R_OK 2
+# define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
+# define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
+# define access _access
+#endif
+
+#if !defined(_MSC_VER)
+# include <stdint.h>
+#endif
+
+/*
+** The following macros are used to cast pointers to integers and
+** integers to pointers.  The way you do this varies from one compiler
+** to the next, so we have developed the following set of #if statements
+** to generate appropriate macros for a wide range of compilers.
+**
+** The correct "ANSI" way to do this is to use the intptr_t type.
+** Unfortunately, that typedef is not available on all compilers, or
+** if it is available, it requires an #include of specific headers
+** that vary from one machine to the next.
+**
+** Ticket #3860:  The llvm-gcc-4.2 compiler from Apple chokes on
+** the ((void*)&((char*)0)[X]) construct.  But MSVC chokes on ((void*)(X)).
+** So we have to define the macros in different ways depending on the
+** compiler.
+*/
+#if defined(__PTRDIFF_TYPE__)  /* This case should work for GCC */
+# define SQLITE_INT_TO_PTR(X)  ((void*)(__PTRDIFF_TYPE__)(X))
+# define SQLITE_PTR_TO_INT(X)  ((sqlite3_int64)(__PTRDIFF_TYPE__)(X))
+#else
+# define SQLITE_INT_TO_PTR(X)  ((void*)(intptr_t)(X))
+# define SQLITE_PTR_TO_INT(X)  ((sqlite3_int64)(intptr_t)(X))
+#endif
+
+/*
+** Show the help text and quit.
+*/
+static void showHelp(void){
+  fprintf(stdout, "%s", zHelp);
+  exit(1);
+}
+
+/*
+** Show an error message an quit.
+*/
+static void fatalError(const char *zFormat, ...){
+  va_list ap;
+  fprintf(stdout, "ERROR: ");
+  va_start(ap, zFormat);
+  vfprintf(stdout, zFormat, ap);
+  va_end(ap);
+  fprintf(stdout, "\n");
+  exit(1);
+}
+
+/*
+** Return the value of a hexadecimal digit.  Return -1 if the input
+** is not a hex digit.
+*/
+static int hexDigitValue(char c){
+  if( c>='0' && c<='9' ) return c - '0';
+  if( c>='a' && c<='f' ) return c - 'a' + 10;
+  if( c>='A' && c<='F' ) return c - 'A' + 10;
+  return -1;
+}
+
+/*
+** Interpret zArg as an integer value, possibly with suffixes.
+*/
+static int integerValue(const char *zArg){
+  int v = 0;
+  static const struct { char *zSuffix; int iMult; } aMult[] = {
+    { "KiB", 1024 },
+    { "MiB", 1024*1024 },
+    { "GiB", 1024*1024*1024 },
+    { "KB",  1000 },
+    { "MB",  1000000 },
+    { "GB",  1000000000 },
+    { "K",   1000 },
+    { "M",   1000000 },
+    { "G",   1000000000 },
+  };
+  int i;
+  int isNeg = 0;
+  if( zArg[0]=='-' ){
+    isNeg = 1;
+    zArg++;
+  }else if( zArg[0]=='+' ){
+    zArg++;
+  }
+  if( zArg[0]=='0' && zArg[1]=='x' ){
+    int x;
+    zArg += 2;
+    while( (x = hexDigitValue(zArg[0]))>=0 ){
+      v = (v<<4) + x;
+      zArg++;
+    }
+  }else{
+    while( zArg[0]>='0' && zArg[0]<='9' ){
+      v = v*10 + zArg[0] - '0';
+      zArg++;
+    }
+  }
+  for(i=0; i<sizeof(aMult)/sizeof(aMult[0]); i++){
+    if( sqlite3_stricmp(aMult[i].zSuffix, zArg)==0 ){
+      v *= aMult[i].iMult;
+      break;
+    }
+  }
+  return isNeg? -v : v;
+}
+
+
+/*
+** Check the filesystem object zPath.  Determine what it is:
+**
+**    PATH_DIR     A single directory holding many files
+**    PATH_TREE    A directory hierarchy with files at the leaves
+**    PATH_DB      An SQLite database
+**    PATH_NEXIST  Does not exist
+**    PATH_OTHER   Something else
+**
+** PATH_DIR means all of the separate files are grouped together
+** into a single directory with names like 000000, 000001, 000002, and
+** so forth.  PATH_TREE means there is a hierarchy of directories so
+** that no single directory has too many entries.  The files have names
+** like 00/00/00, 00/00/01, 00/00/02 and so forth.  The decision between
+** PATH_DIR and PATH_TREE is determined by the presence of a subdirectory
+** named "00" at the top-level.
+*/
+#define PATH_DIR     1
+#define PATH_TREE    2
+#define PATH_DB      3
+#define PATH_NEXIST  0
+#define PATH_OTHER   99
+static int pathType(const char *zPath){
+  struct stat x;
+  int rc;
+  if( access(zPath,R_OK) ) return PATH_NEXIST;
+  memset(&x, 0, sizeof(x));
+  rc = stat(zPath, &x);
+  if( rc<0 ) return PATH_OTHER;
+  if( S_ISDIR(x.st_mode) ){
+    char *zLayer1 = sqlite3_mprintf("%s/00", zPath);
+    memset(&x, 0, sizeof(x));
+    rc = stat(zLayer1, &x);
+    sqlite3_free(zLayer1);
+    if( rc<0 ) return PATH_DIR;
+    if( S_ISDIR(x.st_mode) ) return PATH_TREE;
+    return PATH_DIR;
+  }
+  if( (x.st_size%512)==0 ) return PATH_DB;
+  return PATH_OTHER;
+}
+
+/*
+** Return the size of a file in bytes.  Or return -1 if the
+** named object is not a regular file or does not exist.
+*/
+static sqlite3_int64 fileSize(const char *zPath){
+  struct stat x;
+  int rc;
+  memset(&x, 0, sizeof(x));
+  rc = stat(zPath, &x);
+  if( rc<0 ) return -1;
+  if( !S_ISREG(x.st_mode) ) return -1;
+  return x.st_size;
+}
+
+/*
+** A Pseudo-random number generator with a fixed seed.  Use this so
+** that the same sequence of "random" numbers are generated on each
+** run, for repeatability.
+*/
+static unsigned int randInt(void){
+  static unsigned int x = 0x333a13cd;
+  static unsigned int y = 0xecb2adea;
+  x = (x>>1) ^ ((1+~(x&1)) & 0xd0000001);
+  y = y*1103515245 + 12345;
+  return x^y;
+}
+
+/*
+** Do database initialization.
+*/
+static int initMain(int argc, char **argv){
+  char *zDb;
+  int i, rc;
+  int nCount = 1000;
+  int sz = 10000;
+  int iVariance = 0;
+  int pgsz = 4096;
+  sqlite3 *db;
+  char *zSql;
+  char *zErrMsg = 0;
+
+  assert( strcmp(argv[1],"init")==0 );
+  assert( argc>=3 );
+  zDb = argv[2];
+  for(i=3; i<argc; i++){
+    char *z = argv[i];
+    if( z[0]!='-' ) fatalError("unknown argument: \"%s\"", z);
+    if( z[1]=='-' ) z++;
+    if( strcmp(z, "-count")==0 ){
+      if( i==argc-1 ) fatalError("missing argument on \"%s\"", argv[i]);
+      nCount = integerValue(argv[++i]);
+      if( nCount<1 ) fatalError("the --count must be positive");
+      continue;
+    }
+    if( strcmp(z, "-size")==0 ){
+      if( i==argc-1 ) fatalError("missing argument on \"%s\"", argv[i]);
+      sz = integerValue(argv[++i]);
+      if( sz<1 ) fatalError("the --size must be positive");
+      continue;
+    }
+    if( strcmp(z, "-variance")==0 ){
+      if( i==argc-1 ) fatalError("missing argument on \"%s\"", argv[i]);
+      iVariance = integerValue(argv[++i]);
+      continue;
+    }
+    if( strcmp(z, "-pagesize")==0 ){
+      if( i==argc-1 ) fatalError("missing argument on \"%s\"", argv[i]);
+      pgsz = integerValue(argv[++i]);
+      if( pgsz<512 || pgsz>65536 || ((pgsz-1)&pgsz)!=0 ){
+        fatalError("the --pagesize must be power of 2 between 512 and 65536");
+      }
+      continue;
+    }
+    fatalError("unknown option: \"%s\"", argv[i]);
+  }
+  rc = sqlite3_open(zDb, &db);
+  if( rc ){
+    fatalError("cannot open database \"%s\": %s", zDb, sqlite3_errmsg(db));
+  }
+  zSql = sqlite3_mprintf(
+    "DROP TABLE IF EXISTS kv;\n"
+    "PRAGMA page_size=%d;\n"
+    "VACUUM;\n"
+    "BEGIN;\n"
+    "CREATE TABLE kv(k INTEGER PRIMARY KEY, v BLOB);\n"
+    "WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<%d)"
+    " INSERT INTO kv(k,v) SELECT x, randomblob(%d+(random()%%(%d))) FROM c;\n"
+    "COMMIT;\n",
+    pgsz, nCount, sz, iVariance+1
+  );
+  rc = sqlite3_exec(db, zSql, 0, 0, &zErrMsg);
+  if( rc ) fatalError("database create failed: %s", zErrMsg);
+  sqlite3_free(zSql);
+  sqlite3_close(db);
+  return 0;
+}
+
+/*
+** Analyze an existing database file.  Report its content.
+*/
+static int statMain(int argc, char **argv){
+  char *zDb;
+  int i, rc;
+  sqlite3 *db;
+  char *zSql;
+  sqlite3_stmt *pStmt;
+  int doVacuum = 0;
+
+  assert( strcmp(argv[1],"stat")==0 );
+  assert( argc>=3 );
+  zDb = argv[2];
+  for(i=3; i<argc; i++){
+    char *z = argv[i];
+    if( z[0]!='-' ) fatalError("unknown argument: \"%s\"", z);
+    if( z[1]=='-' ) z++;
+    if( strcmp(z, "-vacuum")==0 ){
+      doVacuum = 1;
+      continue;
+    }
+    fatalError("unknown option: \"%s\"", argv[i]);
+  }
+  rc = sqlite3_open(zDb, &db);
+  if( rc ){
+    fatalError("cannot open database \"%s\": %s", zDb, sqlite3_errmsg(db));
+  }
+  if( doVacuum ){
+    printf("Vacuuming...."); fflush(stdout);
+    sqlite3_exec(db, "VACUUM", 0, 0, 0);
+    printf("       done\n");
+  }
+  zSql = sqlite3_mprintf(
+    "SELECT count(*), min(length(v)), max(length(v)), avg(length(v))"
+    "  FROM kv"
+  );
+  rc = sqlite3_prepare_v2(db, zSql, -1, &pStmt, 0);
+  if( rc ) fatalError("cannot prepare SQL [%s]: %s", zSql, sqlite3_errmsg(db));
+  sqlite3_free(zSql);
+  if( sqlite3_step(pStmt)==SQLITE_ROW ){
+    printf("Number of entries:  %8d\n", sqlite3_column_int(pStmt, 0));
+    printf("Average value size: %8d\n", sqlite3_column_int(pStmt, 3));
+    printf("Minimum value size: %8d\n", sqlite3_column_int(pStmt, 1));
+    printf("Maximum value size: %8d\n", sqlite3_column_int(pStmt, 2));
+  }else{
+    printf("No rows\n");
+  }
+  sqlite3_finalize(pStmt);
+  zSql = sqlite3_mprintf("PRAGMA page_size");
+  rc = sqlite3_prepare_v2(db, zSql, -1, &pStmt, 0);
+  if( rc ) fatalError("cannot prepare SQL [%s]: %s", zSql, sqlite3_errmsg(db));
+  sqlite3_free(zSql);
+  if( sqlite3_step(pStmt)==SQLITE_ROW ){
+    printf("Page-size:          %8d\n", sqlite3_column_int(pStmt, 0));
+  }
+  sqlite3_finalize(pStmt);
+  zSql = sqlite3_mprintf("PRAGMA page_count");
+  rc = sqlite3_prepare_v2(db, zSql, -1, &pStmt, 0);
+  if( rc ) fatalError("cannot prepare SQL [%s]: %s", zSql, sqlite3_errmsg(db));
+  sqlite3_free(zSql);
+  if( sqlite3_step(pStmt)==SQLITE_ROW ){
+    printf("Page-count:         %8d\n", sqlite3_column_int(pStmt, 0));
+  }
+  sqlite3_finalize(pStmt);
+  zSql = sqlite3_mprintf("PRAGMA freelist_count");
+  rc = sqlite3_prepare_v2(db, zSql, -1, &pStmt, 0);
+  if( rc ) fatalError("cannot prepare SQL [%s]: %s", zSql, sqlite3_errmsg(db));
+  sqlite3_free(zSql);
+  if( sqlite3_step(pStmt)==SQLITE_ROW ){
+    printf("Freelist-count:     %8d\n", sqlite3_column_int(pStmt, 0));
+  }
+  sqlite3_finalize(pStmt);
+  rc = sqlite3_prepare_v2(db, "PRAGMA integrity_check(10)", -1, &pStmt, 0);
+  if( rc ) fatalError("cannot prepare integrity check: %s", sqlite3_errmsg(db));
+  while( sqlite3_step(pStmt)==SQLITE_ROW ){
+    printf("Integrity-check:    %s\n", sqlite3_column_text(pStmt, 0));
+  }
+  sqlite3_finalize(pStmt);
+  sqlite3_close(db);
+  return 0;
+}
+
+/*
+**      remember(V,PTR)
+**
+** Return the integer value V.  Also save the value of V in a
+** C-language variable whose address is PTR.
+*/
+static void rememberFunc(
+  sqlite3_context *pCtx,
+  int argc,
+  sqlite3_value **argv
+){
+  sqlite3_int64 v;
+  sqlite3_int64 ptr;
+  assert( argc==2 );
+  v = sqlite3_value_int64(argv[0]);
+  ptr = sqlite3_value_int64(argv[1]);
+  *(sqlite3_int64*)SQLITE_INT_TO_PTR(ptr) = v;
+  sqlite3_result_int64(pCtx, v);
+}
+
+/*
+** Make sure a directory named zDir exists.
+*/
+static void kvtest_mkdir(const char *zDir){
+#if defined(_WIN32)
+  (void)mkdir(zDir);
+#else
+  (void)mkdir(zDir, 0755);
+#endif
+}
+
+/*
+** Export the kv table to individual files in the filesystem
+*/
+static int exportMain(int argc, char **argv){
+  char *zDb;
+  char *zDir;
+  sqlite3 *db;
+  sqlite3_stmt *pStmt;
+  int rc;
+  int ePathType;
+  int nFN;
+  char *zFN;
+  char *zTail;
+  size_t nWrote;
+  int i;
+
+  assert( strcmp(argv[1],"export")==0 );
+  assert( argc>=3 );
+  if( argc<4 ) fatalError("Usage: kvtest export DATABASE DIRECTORY [OPTIONS]");
+  zDb = argv[2];
+  zDir = argv[3];
+  kvtest_mkdir(zDir);
+  for(i=4; i<argc; i++){
+    const char *z = argv[i];
+    if( z[0]=='-' && z[1]=='-' ) z++;
+    if( strcmp(z,"-tree")==0 ){
+      zFN = sqlite3_mprintf("%s/00", zDir);
+      kvtest_mkdir(zFN);
+      sqlite3_free(zFN);
+      continue;
+    }
+    fatalError("unknown argument: \"%s\"\n", argv[i]);
+  }
+  ePathType = pathType(zDir);
+  if( ePathType!=PATH_DIR && ePathType!=PATH_TREE ){
+    fatalError("object \"%s\" is not a directory", zDir);
+  }
+  rc = sqlite3_open(zDb, &db);
+  if( rc ){
+    fatalError("cannot open database \"%s\": %s", zDb, sqlite3_errmsg(db));
+  }
+  rc = sqlite3_prepare_v2(db, "SELECT k, v FROM kv ORDER BY k", -1, &pStmt, 0);
+  if( rc ){
+    fatalError("prepare_v2 failed: %s\n", sqlite3_errmsg(db));
+  }
+  nFN = (int)strlen(zDir);
+  zFN = sqlite3_mprintf("%s/00/00/00.extra---------------------", zDir);
+  if( zFN==0 ){
+    fatalError("malloc failed\n");
+  }
+  zTail = zFN + nFN + 1;
+  while( sqlite3_step(pStmt)==SQLITE_ROW ){
+    int iKey = sqlite3_column_int(pStmt, 0);
+    sqlite3_int64 nData = sqlite3_column_bytes(pStmt, 1);
+    const void *pData = sqlite3_column_blob(pStmt, 1);
+    FILE *out;
+    if( ePathType==PATH_DIR ){
+      sqlite3_snprintf(20, zTail, "%06d", iKey);
+    }else{
+      sqlite3_snprintf(20, zTail, "%02d", iKey/10000);
+      kvtest_mkdir(zFN);
+      sqlite3_snprintf(20, zTail, "%02d/%02d", iKey/10000, (iKey/100)%100);
+      kvtest_mkdir(zFN);
+      sqlite3_snprintf(20, zTail, "%02d/%02d/%02d",
+                       iKey/10000, (iKey/100)%100, iKey%100);
+    }
+    out = fopen(zFN, "wb");      
+    nWrote = fwrite(pData, 1, (size_t)nData, out);
+    fclose(out);
+    printf("\r%s   ", zTail); fflush(stdout);
+    if( nWrote!=(size_t)nData ){
+      fatalError("Wrote only %d of %d bytes to %s\n",
+                  (int)nWrote, nData, zFN);
+    }
+  }
+  sqlite3_finalize(pStmt);
+  sqlite3_close(db);
+  sqlite3_free(zFN);
+  printf("\n");
+  return 0;
+}
+
+/*
+** Read the content of file zName into memory obtained from sqlite3_malloc64()
+** and return a pointer to the buffer. The caller is responsible for freeing 
+** the memory. 
+**
+** If parameter pnByte is not NULL, (*pnByte) is set to the number of bytes
+** read.
+**
+** For convenience, a nul-terminator byte is always appended to the data read
+** from the file before the buffer is returned. This byte is not included in
+** the final value of (*pnByte), if applicable.
+**
+** NULL is returned if any error is encountered. The final value of *pnByte
+** is undefined in this case.
+*/
+static unsigned char *readFile(const char *zName, sqlite3_int64 *pnByte){
+  FILE *in;               /* FILE from which to read content of zName */
+  sqlite3_int64 nIn;      /* Size of zName in bytes */
+  size_t nRead;           /* Number of bytes actually read */
+  unsigned char *pBuf;    /* Content read from disk */
+
+  nIn = fileSize(zName);
+  if( nIn<0 ) return 0;
+  in = fopen(zName, "rb");
+  if( in==0 ) return 0;
+  pBuf = sqlite3_malloc64( nIn );
+  if( pBuf==0 ) return 0;
+  nRead = fread(pBuf, (size_t)nIn, 1, in);
+  fclose(in);
+  if( nRead!=1 ){
+    sqlite3_free(pBuf);
+    return 0;
+  }
+  if( pnByte ) *pnByte = nIn;
+  return pBuf;
+}
+
+/*
+** Overwrite a file with randomness.  Do not change the size of the
+** file.
+*/
+static void updateFile(const char *zName, sqlite3_int64 *pnByte, int doFsync){
+  FILE *out;              /* FILE from which to read content of zName */
+  sqlite3_int64 sz;       /* Size of zName in bytes */
+  size_t nWritten;        /* Number of bytes actually read */
+  unsigned char *pBuf;    /* Content to store on disk */
+  const char *zMode = "wb";   /* Mode for fopen() */
+
+  sz = fileSize(zName);
+  if( sz<0 ){
+    fatalError("No such file: \"%s\"", zName);
+  }
+  *pnByte = sz;
+  if( sz==0 ) return;
+  pBuf = sqlite3_malloc64( sz );
+  if( pBuf==0 ){
+    fatalError("Cannot allocate %lld bytes\n", sz);
+  }
+  sqlite3_randomness((int)sz, pBuf); 
+#if defined(_WIN32)
+  if( doFsync ) zMode = "wbc";
+#endif
+  out = fopen(zName, zMode);
+  if( out==0 ){
+    fatalError("Cannot open \"%s\" for writing\n", zName);
+  }
+  nWritten = fwrite(pBuf, 1, (size_t)sz, out);
+  if( doFsync ){
+#if defined(_WIN32)
+    fflush(out);
+#else
+    fsync(fileno(out));
+#endif
+  }
+  fclose(out);
+  if( nWritten!=(size_t)sz ){
+    fatalError("Wrote only %d of %d bytes to \"%s\"\n",
+               (int)nWritten, (int)sz, zName);
+  }
+  sqlite3_free(pBuf);
+}
+
+/*
+** Return the current time in milliseconds since the beginning of
+** the Julian epoch.
+*/
+static sqlite3_int64 timeOfDay(void){
+  static sqlite3_vfs *clockVfs = 0;
+  sqlite3_int64 t;
+  if( clockVfs==0 ) clockVfs = sqlite3_vfs_find(0);
+  if( clockVfs->iVersion>=2 && clockVfs->xCurrentTimeInt64!=0 ){
+    clockVfs->xCurrentTimeInt64(clockVfs, &t);
+  }else{
+    double r;
+    clockVfs->xCurrentTime(clockVfs, &r);
+    t = (sqlite3_int64)(r*86400000.0);
+  }
+  return t;
+}
+
+#ifdef __linux__
+/*
+** Attempt to display I/O stats on Linux using /proc/PID/io
+*/
+static void displayLinuxIoStats(FILE *out){
+  FILE *in;
+  char z[200];
+  sqlite3_snprintf(sizeof(z), z, "/proc/%d/io", getpid());
+  in = fopen(z, "rb");
+  if( in==0 ) return;
+  while( fgets(z, sizeof(z), in)!=0 ){
+    static const struct {
+      const char *zPattern;
+      const char *zDesc;
+    } aTrans[] = {
+      { "rchar: ",                  "Bytes received by read():" },
+      { "wchar: ",                  "Bytes sent to write():"    },
+      { "syscr: ",                  "Read() system calls:"      },
+      { "syscw: ",                  "Write() system calls:"     },
+      { "read_bytes: ",             "Bytes read from storage:"  },
+      { "write_bytes: ",            "Bytes written to storage:" },
+      { "cancelled_write_bytes: ",  "Cancelled write bytes:"    },
+    };
+    int i;
+    for(i=0; i<sizeof(aTrans)/sizeof(aTrans[0]); i++){
+      int n = (int)strlen(aTrans[i].zPattern);
+      if( strncmp(aTrans[i].zPattern, z, n)==0 ){
+        fprintf(out, "%-36s %s", aTrans[i].zDesc, &z[n]);
+        break;
+      }
+    }
+  }
+  fclose(in);
+}
+#endif
+
+/*
+** Display memory stats.
+*/
+static int display_stats(
+  sqlite3 *db,                    /* Database to query */
+  int bReset                      /* True to reset SQLite stats */
+){
+  int iCur;
+  int iHiwtr;
+  FILE *out = stdout;
+
+  fprintf(out, "\n");
+
+  iHiwtr = iCur = -1;
+  sqlite3_status(SQLITE_STATUS_MEMORY_USED, &iCur, &iHiwtr, bReset);
+  fprintf(out,
+          "Memory Used:                         %d (max %d) bytes\n",
+          iCur, iHiwtr);
+  iHiwtr = iCur = -1;
+  sqlite3_status(SQLITE_STATUS_MALLOC_COUNT, &iCur, &iHiwtr, bReset);
+  fprintf(out, "Number of Outstanding Allocations:   %d (max %d)\n",
+          iCur, iHiwtr);
+  iHiwtr = iCur = -1;
+  sqlite3_status(SQLITE_STATUS_PAGECACHE_USED, &iCur, &iHiwtr, bReset);
+  fprintf(out,
+      "Number of Pcache Pages Used:         %d (max %d) pages\n",
+      iCur, iHiwtr);
+  iHiwtr = iCur = -1;
+  sqlite3_status(SQLITE_STATUS_PAGECACHE_OVERFLOW, &iCur, &iHiwtr, bReset);
+  fprintf(out,
+          "Number of Pcache Overflow Bytes:     %d (max %d) bytes\n",
+          iCur, iHiwtr);
+  iHiwtr = iCur = -1;
+  sqlite3_status(SQLITE_STATUS_MALLOC_SIZE, &iCur, &iHiwtr, bReset);
+  fprintf(out, "Largest Allocation:                  %d bytes\n",
+          iHiwtr);
+  iHiwtr = iCur = -1;
+  sqlite3_status(SQLITE_STATUS_PAGECACHE_SIZE, &iCur, &iHiwtr, bReset);
+  fprintf(out, "Largest Pcache Allocation:           %d bytes\n",
+          iHiwtr);
+
+  iHiwtr = iCur = -1;
+  sqlite3_db_status(db, SQLITE_DBSTATUS_CACHE_USED, &iCur, &iHiwtr, bReset);
+  fprintf(out, "Pager Heap Usage:                    %d bytes\n",
+      iCur);
+  iHiwtr = iCur = -1;
+  sqlite3_db_status(db, SQLITE_DBSTATUS_CACHE_HIT, &iCur, &iHiwtr, 1);
+  fprintf(out, "Page cache hits:                     %d\n", iCur);
+  iHiwtr = iCur = -1;
+  sqlite3_db_status(db, SQLITE_DBSTATUS_CACHE_MISS, &iCur, &iHiwtr, 1);
+  fprintf(out, "Page cache misses:                   %d\n", iCur);
+  iHiwtr = iCur = -1;
+  sqlite3_db_status(db, SQLITE_DBSTATUS_CACHE_WRITE, &iCur, &iHiwtr, 1);
+  fprintf(out, "Page cache writes:                   %d\n", iCur);
+  iHiwtr = iCur = -1;
+
+#ifdef __linux__
+  displayLinuxIoStats(out);
+#endif
+
+  return 0;
+}
+
+/* Blob access order */
+#define ORDER_ASC     1
+#define ORDER_DESC    2
+#define ORDER_RANDOM  3
+
+
+/*
+** Run a performance test
+*/
+static int runMain(int argc, char **argv){
+  int eType;                  /* Is zDb a database or a directory? */
+  char *zDb;                  /* Database or directory name */
+  int i;                      /* Loop counter */
+  int rc;                     /* Return code from SQLite calls */
+  int nCount = 1000;          /* Number of blob fetch operations */
+  int nExtra = 0;             /* Extra cycles */
+  int iKey = 1;               /* Next blob key */
+  int iMax = 0;               /* Largest allowed key */
+  int iPagesize = 0;          /* Database page size */
+  int iCache = 1000;          /* Database cache size in kibibytes */
+  int bBlobApi = 0;           /* Use the incremental blob I/O API */
+  int bStats = 0;             /* Print stats before exiting */
+  int eOrder = ORDER_ASC;     /* Access order */
+  int isUpdateTest = 0;       /* Do in-place updates rather than reads */
+  int doIntegrityCk = 0;      /* Run PRAGMA integrity_check after the test */
+  int noSync = 0;             /* Disable synchronous mode */
+  int doFsync = 0;            /* Update disk files synchronously */
+  int doMultiTrans = 0;       /* Each operation in its own transaction */
+  int noCheckpoint = 0;       /* Omit the checkpoint in WAL mode */
+  sqlite3 *db = 0;            /* Database connection */
+  sqlite3_stmt *pStmt = 0;    /* Prepared statement for SQL access */
+  sqlite3_blob *pBlob = 0;    /* Handle for incremental Blob I/O */
+  sqlite3_int64 tmStart;      /* Start time */
+  sqlite3_int64 tmElapsed;    /* Elapsed time */
+  int mmapSize = 0;           /* --mmap N argument */
+  sqlite3_int64 nData = 0;    /* Bytes of data */
+  sqlite3_int64 nTotal = 0;   /* Total data read */
+  unsigned char *pData = 0;   /* Content of the blob */
+  sqlite3_int64 nAlloc = 0;   /* Space allocated for pData[] */
+  const char *zJMode = 0;     /* Journal mode */
+  
+
+  assert( strcmp(argv[1],"run")==0 );
+  assert( argc>=3 );
+  zDb = argv[2];
+  eType = pathType(zDb);
+  if( eType==PATH_OTHER ) fatalError("unknown object type: \"%s\"", zDb);
+  if( eType==PATH_NEXIST ) fatalError("object does not exist: \"%s\"", zDb);
+  for(i=3; i<argc; i++){
+    char *z = argv[i];
+    if( z[0]!='-' ) fatalError("unknown argument: \"%s\"", z);
+    if( z[1]=='-' ) z++;
+    if( strcmp(z, "-asc")==0 ){
+      eOrder = ORDER_ASC;
+      continue;
+    }
+    if( strcmp(z, "-blob-api")==0 ){
+      bBlobApi = 1;
+      continue;
+    }
+    if( strcmp(z, "-cache-size")==0 ){
+      if( i==argc-1 ) fatalError("missing argument on \"%s\"", argv[i]);
+      iCache = integerValue(argv[++i]);
+      continue;
+    }
+    if( strcmp(z, "-count")==0 ){
+      if( i==argc-1 ) fatalError("missing argument on \"%s\"", argv[i]);
+      nCount = integerValue(argv[++i]);
+      if( nCount<1 ) fatalError("the --count must be positive");
+      continue;
+    }
+    if( strcmp(z, "-desc")==0 ){
+      eOrder = ORDER_DESC;
+      continue;
+    }
+    if( strcmp(z, "-fsync")==0 ){
+      doFsync = 1;
+      continue;
+    }
+    if( strcmp(z, "-integrity-check")==0 ){
+      doIntegrityCk = 1;
+      continue;
+    }
+    if( strcmp(z, "-jmode")==0 ){
+      if( i==argc-1 ) fatalError("missing argument on \"%s\"", argv[i]);
+      zJMode = argv[++i];
+      continue;
+    }
+    if( strcmp(z, "-mmap")==0 ){
+      if( i==argc-1 ) fatalError("missing argument on \"%s\"", argv[i]);
+      mmapSize = integerValue(argv[++i]);
+      if( nCount<0 ) fatalError("the --mmap must be non-negative");
+      continue;
+    }
+    if( strcmp(z, "-max-id")==0 ){
+      if( i==argc-1 ) fatalError("missing argument on \"%s\"", argv[i]);
+      iMax = integerValue(argv[++i]);
+      continue;
+    }
+    if( strcmp(z, "-multitrans")==0 ){
+      doMultiTrans = 1;
+      continue;
+    }
+    if( strcmp(z, "-nocheckpoint")==0 ){
+      noCheckpoint = 1;
+      continue;
+    }
+    if( strcmp(z, "-nosync")==0 ){
+      noSync = 1;
+      continue;
+    }
+    if( strcmp(z, "-random")==0 ){
+      eOrder = ORDER_RANDOM;
+      continue;
+    }
+    if( strcmp(z, "-start")==0 ){
+      if( i==argc-1 ) fatalError("missing argument on \"%s\"", argv[i]);
+      iKey = integerValue(argv[++i]);
+      if( iKey<1 ) fatalError("the --start must be positive");
+      continue;
+    }
+    if( strcmp(z, "-stats")==0 ){
+      bStats = 1;
+      continue;
+    }
+    if( strcmp(z, "-update")==0 ){
+      isUpdateTest = 1;
+      continue;
+    }
+    fatalError("unknown option: \"%s\"", argv[i]);
+  }
+  if( eType==PATH_DB ){
+    /* Recover any prior crashes prior to starting the timer */
+    sqlite3_open(zDb, &db);
+    sqlite3_exec(db, "SELECT rowid FROM sqlite_schema LIMIT 1", 0, 0, 0);
+    sqlite3_close(db);
+    db = 0;
+  }
+  tmStart = timeOfDay();
+  if( eType==PATH_DB ){
+    char *zSql;
+    rc = sqlite3_open(zDb, &db);
+    if( rc ){
+      fatalError("cannot open database \"%s\": %s", zDb, sqlite3_errmsg(db));
+    }
+    zSql = sqlite3_mprintf("PRAGMA mmap_size=%d", mmapSize);
+    sqlite3_exec(db, zSql, 0, 0, 0);
+    sqlite3_free(zSql);
+    zSql = sqlite3_mprintf("PRAGMA cache_size=%d", iCache);
+    sqlite3_exec(db, zSql, 0, 0, 0);
+    sqlite3_free(zSql);
+    if( noSync ){
+      sqlite3_exec(db, "PRAGMA synchronous=OFF", 0, 0, 0);
+    }
+    pStmt = 0;
+    sqlite3_prepare_v2(db, "PRAGMA page_size", -1, &pStmt, 0);
+    if( sqlite3_step(pStmt)==SQLITE_ROW ){
+      iPagesize = sqlite3_column_int(pStmt, 0);
+    }
+    sqlite3_finalize(pStmt);
+    sqlite3_prepare_v2(db, "PRAGMA cache_size", -1, &pStmt, 0);
+    if( sqlite3_step(pStmt)==SQLITE_ROW ){
+      iCache = sqlite3_column_int(pStmt, 0);
+    }else{
+      iCache = 0;
+    }
+    sqlite3_finalize(pStmt);
+    pStmt = 0;
+    if( zJMode ){
+      zSql = sqlite3_mprintf("PRAGMA journal_mode=%Q", zJMode);
+      sqlite3_exec(db, zSql, 0, 0, 0);
+      sqlite3_free(zSql);
+      if( noCheckpoint ){
+        sqlite3_exec(db, "PRAGMA wal_autocheckpoint=0", 0, 0, 0);
+      }
+    }
+    sqlite3_prepare_v2(db, "PRAGMA journal_mode", -1, &pStmt, 0);
+    if( sqlite3_step(pStmt)==SQLITE_ROW ){
+      zJMode = sqlite3_mprintf("%s", sqlite3_column_text(pStmt, 0));
+    }else{
+      zJMode = "???";
+    }
+    sqlite3_finalize(pStmt);
+    if( iMax<=0 ){
+      sqlite3_prepare_v2(db, "SELECT max(k) FROM kv", -1, &pStmt, 0);
+      if( sqlite3_step(pStmt)==SQLITE_ROW ){
+        iMax = sqlite3_column_int(pStmt, 0);
+      }
+      sqlite3_finalize(pStmt);
+    }
+    pStmt = 0;
+    if( !doMultiTrans ) sqlite3_exec(db, "BEGIN", 0, 0, 0);
+  }
+  if( iMax<=0 ) iMax = 1000;
+  for(i=0; i<nCount; i++){
+    if( eType==PATH_DIR || eType==PATH_TREE ){
+      /* CASE 1: Reading or writing blobs out of separate files */
+      char *zKey;
+      if( eType==PATH_DIR ){
+        zKey = sqlite3_mprintf("%s/%06d", zDb, iKey);
+      }else{
+        zKey = sqlite3_mprintf("%s/%02d/%02d/%02d", zDb, iKey/10000,
+                               (iKey/100)%100, iKey%100);
+      }
+      nData = 0;
+      if( isUpdateTest ){
+        updateFile(zKey, &nData, doFsync);
+      }else{
+        pData = readFile(zKey, &nData);
+        sqlite3_free(pData);
+      }
+      sqlite3_free(zKey);
+    }else if( bBlobApi ){
+      /* CASE 2: Reading from database using the incremental BLOB I/O API */
+      if( pBlob==0 ){
+        rc = sqlite3_blob_open(db, "main", "kv", "v", iKey,
+                               isUpdateTest, &pBlob);
+        if( rc ){
+          fatalError("could not open sqlite3_blob handle: %s",
+                     sqlite3_errmsg(db));
+        }
+      }else{
+        rc = sqlite3_blob_reopen(pBlob, iKey);
+      }
+      if( rc==SQLITE_OK ){
+        nData = sqlite3_blob_bytes(pBlob);
+        if( nAlloc<nData+1 ){
+          nAlloc = nData+100;
+          pData = sqlite3_realloc64(pData, nAlloc);
+        }
+        if( pData==0 ) fatalError("cannot allocate %d bytes", nData+1);
+        if( isUpdateTest ){
+          sqlite3_randomness((int)nData, pData);
+          rc = sqlite3_blob_write(pBlob, pData, (int)nData, 0);
+          if( rc!=SQLITE_OK ){
+            fatalError("could not write the blob at %d: %s", iKey,
+                      sqlite3_errmsg(db));
+          }
+        }else{
+          rc = sqlite3_blob_read(pBlob, pData, (int)nData, 0);
+          if( rc!=SQLITE_OK ){
+            fatalError("could not read the blob at %d: %s", iKey,
+                      sqlite3_errmsg(db));
+          }
+        }
+      }
+    }else{
+      /* CASE 3: Reading from database using SQL */
+      if( pStmt==0 ){
+        if( isUpdateTest ){
+          sqlite3_create_function(db, "remember", 2, SQLITE_UTF8, 0,
+                                  rememberFunc, 0, 0);
+
+          rc = sqlite3_prepare_v2(db, 
+            "UPDATE kv SET v=randomblob(remember(length(v),?2))"
+            " WHERE k=?1", -1, &pStmt, 0);
+          sqlite3_bind_int64(pStmt, 2, SQLITE_PTR_TO_INT(&nData));
+        }else{
+          rc = sqlite3_prepare_v2(db, 
+                 "SELECT v FROM kv WHERE k=?1", -1, &pStmt, 0);
+        }
+        if( rc ){
+          fatalError("cannot prepare query: %s", sqlite3_errmsg(db));
+        }
+      }else{
+        sqlite3_reset(pStmt);
+      }
+      sqlite3_bind_int(pStmt, 1, iKey);
+      nData = 0;
+      rc = sqlite3_step(pStmt);
+      if( rc==SQLITE_ROW ){
+        nData = sqlite3_column_bytes(pStmt, 0);
+        pData = (unsigned char*)sqlite3_column_blob(pStmt, 0);
+      }
+    }
+    if( eOrder==ORDER_ASC ){
+      iKey++;
+      if( iKey>iMax ) iKey = 1;
+    }else if( eOrder==ORDER_DESC ){
+      iKey--;
+      if( iKey<=0 ) iKey = iMax;
+    }else{
+      iKey = (randInt()%iMax)+1;
+    }
+    nTotal += nData;
+    if( nData==0 ){ nCount++; nExtra++; }
+  }
+  if( nAlloc ) sqlite3_free(pData);
+  if( pStmt ) sqlite3_finalize(pStmt);
+  if( pBlob ) sqlite3_blob_close(pBlob);
+  if( bStats ){
+    display_stats(db, 0);
+  }
+  if( db ){
+    if( !doMultiTrans ) sqlite3_exec(db, "COMMIT", 0, 0, 0);
+    if( !noCheckpoint ){
+      sqlite3_close(db);
+      db = 0;
+    }
+  }
+  tmElapsed = timeOfDay() - tmStart;
+  if( db && noCheckpoint ){
+    sqlite3_close(db);
+    db = 0;
+  }
+  if( nExtra ){
+    printf("%d cycles due to %d misses\n", nCount, nExtra);
+  }
+  if( eType==PATH_DB ){
+    printf("SQLite version: %s\n", sqlite3_libversion());
+    if( doIntegrityCk ){
+      sqlite3_open(zDb, &db);
+      sqlite3_prepare_v2(db, "PRAGMA integrity_check", -1, &pStmt, 0);
+      while( sqlite3_step(pStmt)==SQLITE_ROW ){
+        printf("integrity-check: %s\n", sqlite3_column_text(pStmt, 0));
+      }
+      sqlite3_finalize(pStmt);
+      sqlite3_close(db);
+      db = 0;
+    }
+  }
+  printf("--count %d --max-id %d", nCount-nExtra, iMax);
+  switch( eOrder ){
+    case ORDER_RANDOM:  printf(" --random\n");  break;
+    case ORDER_DESC:    printf(" --desc\n");    break;
+    default:            printf(" --asc\n");     break;
+  }
+  if( eType==PATH_DB ){
+    printf("--cache-size %d --jmode %s\n", iCache, zJMode);
+    printf("--mmap %d%s\n", mmapSize, bBlobApi ? " --blob-api" : "");
+    if( noSync ) printf("--nosync\n");
+  }
+  if( iPagesize ) printf("Database page size: %d\n", iPagesize);
+  printf("Total elapsed time: %.3f\n", tmElapsed/1000.0);
+  if( isUpdateTest ){
+    printf("Microseconds per BLOB write: %.3f\n", tmElapsed*1000.0/nCount);
+    printf("Content write rate: %.1f MB/s\n", nTotal/(1000.0*tmElapsed));
+  }else{
+    printf("Microseconds per BLOB read: %.3f\n", tmElapsed*1000.0/nCount);
+    printf("Content read rate: %.1f MB/s\n", nTotal/(1000.0*tmElapsed));
+  }
+  return 0;
+}
+
+
+int main(int argc, char **argv){
+  if( argc<3 ) showHelp();
+  if( strcmp(argv[1],"init")==0 ){
+    return initMain(argc, argv);
+  }
+  if( strcmp(argv[1],"export")==0 ){
+    return exportMain(argc, argv);
+  }
+  if( strcmp(argv[1],"run")==0 ){
+    return runMain(argc, argv);
+  }
+  if( strcmp(argv[1],"stat")==0 ){
+    return statMain(argc, argv);
+  }
+  showHelp();
+  return 0;
+}
diff --git a/test/lastinsert.test b/test/lastinsert.test
new file mode 100644
index 0000000000000000000000000000000000000000..c5bc267d1a23ef5c96970851e32bff53920bad83
--- /dev/null
+++ b/test/lastinsert.test
@@ -0,0 +1,377 @@
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests to make sure that value returned by last_insert_rowid() (LIRID)
+# is updated properly, especially inside triggers
+#
+# Note 1: insert into table is now the only statement which changes LIRID
+# Note 2: upon entry into before or instead of triggers,
+#           LIRID is unchanged (rather than -1)
+# Note 3: LIRID is changed within the context of a trigger,
+#           but is restored once the trigger exits
+# Note 4: LIRID is not changed by an insert into a view (since everything
+#           is done within instead of trigger context)
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# ----------------------------------------------------------------------------
+# 1.x - basic tests (no triggers)
+
+# LIRID changed properly after an insert into a table
+do_test lastinsert-1.1 {
+    catchsql {
+        create table t1 (k integer primary key);
+        insert into t1 values (1);
+        insert into t1 values (NULL);
+        insert into t1 values (NULL);
+        select last_insert_rowid();
+    }
+} {0 3}
+
+# EVIDENCE-OF: R-47220-63683 The sqlite3_last_insert_rowid() function
+# does not work for WITHOUT ROWID tables.
+#
+do_test lastinsert-1.1w {
+    catchsql {
+        create table t1w (k integer primary key) WITHOUT ROWID;
+        insert into t1w values (123456);
+        select last_insert_rowid(); -- returns 3 from above.
+    }
+} {0 3}
+
+# LIRID unchanged after an update on a table
+do_test lastinsert-1.2 {
+    catchsql {
+        update t1 set k=4 where k=2;
+        select last_insert_rowid();
+    }
+} {0 3}
+
+# LIRID unchanged after a delete from a table
+do_test lastinsert-1.3 {
+    catchsql {
+        delete from t1 where k=4;
+        select last_insert_rowid();
+    }
+} {0 3}
+
+# LIRID unchanged after create table/view statements
+do_test lastinsert-1.4.1 {
+    catchsql {
+        create table t2 (k integer primary key, val1, val2, val3);
+        select last_insert_rowid();
+    }
+} {0 3}
+ifcapable view {
+do_test lastinsert-1.4.2 {
+    catchsql {
+        create view v as select * from t1;
+        select last_insert_rowid();
+    }
+} {0 3}
+} ;# ifcapable view
+
+# All remaining tests involve triggers.  Skip them if triggers are not
+# supported in this build.
+#
+ifcapable {!trigger} {
+  finish_test
+  return
+}
+
+# ----------------------------------------------------------------------------
+# 2.x - tests with after insert trigger
+
+# LIRID changed properly after an insert into table containing an after trigger
+do_test lastinsert-2.1 {
+    catchsql {
+        delete from t2;
+        create trigger r1 after insert on t1 for each row begin
+            insert into t2 values (NEW.k*2, last_insert_rowid(), NULL, NULL);
+            update t2 set k=k+10, val2=100+last_insert_rowid();
+            update t2 set val3=1000+last_insert_rowid();
+        end;
+        insert into t1 values (13);
+        select last_insert_rowid();
+    }
+} {0 13}
+
+# LIRID equals NEW.k upon entry into after insert trigger
+do_test lastinsert-2.2 {
+    catchsql {
+        select val1 from t2;
+    }
+} {0 13}
+
+# LIRID changed properly by insert within context of after insert trigger
+do_test lastinsert-2.3 {
+    catchsql {
+        select val2 from t2;
+    }
+} {0 126}
+
+# LIRID unchanged by update within context of after insert trigger
+do_test lastinsert-2.4 {
+    catchsql {
+        select val3 from t2;
+    }
+} {0 1026}
+
+# ----------------------------------------------------------------------------
+# 3.x - tests with after update trigger
+
+# LIRID not changed after an update onto a table containing an after trigger
+do_test lastinsert-3.1 {
+    catchsql {
+        delete from t2;
+        drop trigger r1;
+        create trigger r1 after update on t1 for each row begin
+            insert into t2 values (NEW.k*2, last_insert_rowid(), NULL, NULL);
+            update t2 set k=k+10, val2=100+last_insert_rowid();
+            update t2 set val3=1000+last_insert_rowid();
+        end;
+        update t1 set k=14 where k=3;
+        select last_insert_rowid();
+    }
+} {0 13}
+
+# LIRID unchanged upon entry into after update trigger
+do_test lastinsert-3.2 {
+    catchsql {
+        select val1 from t2;
+    }
+} {0 13}
+
+# LIRID changed properly by insert within context of after update trigger
+do_test lastinsert-3.3 {
+    catchsql {
+        select val2 from t2;
+    }
+} {0 128}
+
+# LIRID unchanged by update within context of after update trigger
+do_test lastinsert-3.4 {
+    catchsql {
+        select val3 from t2;
+    }
+} {0 1028}
+
+# ----------------------------------------------------------------------------
+# 4.x - tests with instead of insert trigger
+# These may not be run if either views or triggers were disabled at 
+# compile-time
+
+ifcapable {view && trigger} {
+# LIRID not changed after an insert into view containing an instead of trigger
+do_test lastinsert-4.1 {
+    catchsql {
+        delete from t2;
+        drop trigger r1;
+        create trigger r1 instead of insert on v for each row begin
+            insert into t2 values (NEW.k*2, last_insert_rowid(), NULL, NULL);
+            update t2 set k=k+10, val2=100+last_insert_rowid();
+            update t2 set val3=1000+last_insert_rowid();
+        end;
+        insert into v values (15);
+        select last_insert_rowid();
+    }
+} {0 13}
+
+# LIRID unchanged upon entry into instead of trigger
+do_test lastinsert-4.2 {
+    catchsql {
+        select val1 from t2;
+    }
+} {0 13}
+
+# LIRID changed properly by insert within context of instead of trigger
+do_test lastinsert-4.3 {
+    catchsql {
+        select val2 from t2;
+    }
+} {0 130}
+
+# LIRID unchanged by update within context of instead of trigger
+do_test lastinsert-4.4 {
+    catchsql {
+        select val3 from t2;
+    }
+} {0 1030}
+} ;# ifcapable (view && trigger)
+
+# ----------------------------------------------------------------------------
+# 5.x - tests with before delete trigger
+
+# LIRID not changed after a delete on a table containing a before trigger
+do_test lastinsert-5.1 {
+    catchsql {
+      drop trigger r1;  -- This was not created if views are disabled.
+    }
+    catchsql {
+        delete from t2;
+        create trigger r1 before delete on t1 for each row begin
+            insert into t2 values (77, last_insert_rowid(), NULL, NULL);
+            update t2 set k=k+10, val2=100+last_insert_rowid();
+            update t2 set val3=1000+last_insert_rowid();
+        end;
+        delete from t1 where k=1;
+        select last_insert_rowid();
+    }
+} {0 13}
+
+# LIRID unchanged upon entry into delete trigger
+do_test lastinsert-5.2 {
+    catchsql {
+        select val1 from t2;
+    }
+} {0 13}
+
+# LIRID changed properly by insert within context of delete trigger
+do_test lastinsert-5.3 {
+    catchsql {
+        select val2 from t2;
+    }
+} {0 177}
+
+# LIRID unchanged by update within context of delete trigger
+do_test lastinsert-5.4 {
+    catchsql {
+        select val3 from t2;
+    }
+} {0 1077}
+
+# ----------------------------------------------------------------------------
+# 6.x - tests with instead of update trigger
+# These tests may not run if either views or triggers are disabled.
+
+ifcapable {view && trigger} {
+# LIRID not changed after an update on a view containing an instead of trigger
+do_test lastinsert-6.1 {
+    catchsql {
+        delete from t2;
+        drop trigger r1;
+        create trigger r1 instead of update on v for each row begin
+            insert into t2 values (NEW.k*2, last_insert_rowid(), NULL, NULL);
+            update t2 set k=k+10, val2=100+last_insert_rowid();
+            update t2 set val3=1000+last_insert_rowid();
+        end;
+        update v set k=16 where k=14;
+        select last_insert_rowid();
+    }
+} {0 13}
+
+# LIRID unchanged upon entry into instead of trigger
+do_test lastinsert-6.2 {
+    catchsql {
+        select val1 from t2;
+    }
+} {0 13}
+
+# LIRID changed properly by insert within context of instead of trigger
+do_test lastinsert-6.3 {
+    catchsql {
+        select val2 from t2;
+    }
+} {0 132}
+
+# LIRID unchanged by update within context of instead of trigger
+do_test lastinsert-6.4 {
+    catchsql {
+        select val3 from t2;
+    }
+} {0 1032}
+} ;# ifcapable (view && trigger)
+
+# ----------------------------------------------------------------------------
+# 7.x - complex tests with temporary tables and nested instead of triggers
+# These do not run if views or triggers are disabled.
+
+ifcapable {trigger && view && tempdb} {
+do_test lastinsert-7.1 {
+    catchsql {
+        drop table t1; drop table t2; drop trigger r1;
+        create temp table t1 (k integer primary key);
+        create temp table t2 (k integer primary key);
+        create temp view v1 as select * from t1;
+        create temp view v2 as select * from t2;
+        create temp table rid (k integer primary key, rin, rout);
+        insert into rid values (1, NULL, NULL);
+        insert into rid values (2, NULL, NULL);
+        create temp trigger r1 instead of insert on v1 for each row begin
+            update rid set rin=last_insert_rowid() where k=1;
+            insert into t1 values (100+NEW.k);
+            insert into v2 values (100+last_insert_rowid());
+            update rid set rout=last_insert_rowid() where k=1;
+        end;
+        create temp trigger r2 instead of insert on v2 for each row begin
+            update rid set rin=last_insert_rowid() where k=2;
+            insert into t2 values (1000+NEW.k);
+            update rid set rout=last_insert_rowid() where k=2;
+        end;
+        insert into t1 values (77);
+        select last_insert_rowid();
+    }
+} {0 77}
+
+do_test lastinsert-7.2 {
+    catchsql {
+        insert into v1 values (5);
+        select last_insert_rowid();
+    }
+} {0 77}
+
+do_test lastinsert-7.3 {
+    catchsql {
+        select rin from rid where k=1;
+    }
+} {0 77}
+
+do_test lastinsert-7.4 {
+    catchsql {
+        select rout from rid where k=1;
+    }
+} {0 105}
+
+do_test lastinsert-7.5 {
+    catchsql {
+        select rin from rid where k=2;
+    }
+} {0 105}
+
+do_test lastinsert-7.6 {
+    catchsql {
+        select rout from rid where k=2;
+    }
+} {0 1205}
+
+do_test lastinsert-8.1 {
+  db close
+  sqlite3 db test.db
+  execsql {
+    CREATE TABLE t2(x INTEGER PRIMARY KEY, y);
+    CREATE TABLE t3(a, b);
+    CREATE TRIGGER after_t2 AFTER INSERT ON t2 BEGIN
+      INSERT INTO t3 VALUES(new.x, new.y);
+    END;
+    INSERT INTO t2 VALUES(5000000000, 1);
+    SELECT last_insert_rowid();
+  }
+} 5000000000
+
+do_test lastinsert-9.1 {
+  db eval {INSERT INTO t2 VALUES(123456789012345,0)}
+  db last_insert_rowid
+} {123456789012345}
+
+
+} ;# ifcapable (view && trigger)
+
+finish_test
diff --git a/test/laststmtchanges.test b/test/laststmtchanges.test
new file mode 100644
index 0000000000000000000000000000000000000000..ea4c3892b75d257cf51a3f71864c537b93a4ba67
--- /dev/null
+++ b/test/laststmtchanges.test
@@ -0,0 +1,331 @@
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests to make sure that values returned by changes() and total_changes()
+# are updated properly, especially inside triggers
+#
+# Note 1: changes() remains constant within a statement and only updates
+#         once the statement is finished (triggers count as part of
+#         statement).
+# Note 2: changes() is changed within the context of a trigger much like 
+#         last_insert_rowid() (see lastinsert.test), but is restored once
+#         the trigger exits.
+# Note 3: changes() is not changed by a change to a view (since everything
+#         is done within instead of trigger context).
+#
+# $Id: laststmtchanges.test,v 1.7 2008/10/27 13:59:34 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# ----------------------------------------------------------------------------
+# 1.x - basic tests (no triggers)
+
+# changes() set properly after insert
+do_test laststmtchanges-1.1 {
+    catchsql {
+        create table t0 (x);
+        insert into t0 values (1);
+        insert into t0 values (1);
+        insert into t0 values (2);
+        insert into t0 values (2);
+        insert into t0 values (1);
+        insert into t0 values (1);
+        insert into t0 values (1);
+        insert into t0 values (2);
+        select changes(), total_changes();
+    }
+} {0 {1 8}}
+
+# changes() set properly after update
+do_test laststmtchanges-1.2 {
+    catchsql {
+        update t0 set x=3 where x=1;
+        select changes(), total_changes();
+    }
+} {0 {5 13}}
+
+# There was some goofy change-counting logic in sqlite3_exec() that
+# appears to have been left over from SQLite version 2.  This test
+# makes sure it has been removed.
+#
+do_test laststmtchanges-1.2.1 {
+    db cache flush
+    sqlite3_exec_printf db {update t0 set x=4 where x=3; select 1;} {}
+    execsql {select changes()}
+} {5}
+
+# changes() unchanged within an update statement
+do_test laststmtchanges-1.3 {
+    execsql {update t0 set x=3 where x=4}
+    catchsql {
+        update t0 set x=x+changes() where x=3;
+        select count() from t0 where x=8;
+    }
+} {0 5}
+
+# changes() set properly after update on table where no rows changed
+do_test laststmtchanges-1.4 {
+    catchsql {
+        update t0 set x=77 where x=88;
+        select changes();
+    }
+} {0 0}
+
+# changes() set properly after delete from table
+do_test laststmtchanges-1.5 {
+    catchsql {
+        delete from t0 where x=2;
+        select changes();
+    }
+} {0 3}
+
+# All remaining tests involve triggers.  Skip them if triggers are not
+# supported in this build.
+#
+ifcapable {!trigger} {
+  finish_test
+  return
+}
+
+
+# ----------------------------------------------------------------------------
+# 2.x - tests with after insert trigger
+
+# changes() changed properly after insert into table containing after trigger
+do_test laststmtchanges-2.1 {
+    set ::tc [db total_changes]
+    catchsql {
+        create table t1 (k integer primary key);
+        create table t2 (k integer primary key, v1, v2);
+        create trigger r1 after insert on t1 for each row begin
+            insert into t2 values (NULL, changes(), NULL);
+            update t0 set x=x;
+            update t2 set v2=changes();
+        end;
+        insert into t1 values (77);
+        select changes();
+    }
+} {0 1}
+
+# changes() unchanged upon entry into after insert trigger
+do_test laststmtchanges-2.2 {
+    catchsql {
+        select v1 from t2;
+    }
+} {0 3}
+
+# changes() changed properly by update within context of after insert trigger
+do_test laststmtchanges-2.3 {
+    catchsql {
+        select v2 from t2;
+    }
+} {0 5}
+
+# Total changes caused by firing the trigger above:
+#
+#   1 from "insert into t1 values(77)" + 
+#   1 from "insert into t2 values (NULL, changes(), NULL);" +
+#   5 from "update t0 set x=x;" +
+#   1 from "update t2 set v2=changes();"
+#
+do_test laststmtchanges-2.4 {
+  expr [db total_changes] - $::tc
+} {8}
+
+# ----------------------------------------------------------------------------
+# 3.x - tests with after update trigger
+
+# changes() changed properly after update into table containing after trigger
+do_test laststmtchanges-3.1 {
+    catchsql {
+        drop trigger r1;
+        delete from t2; delete from t2;
+        create trigger r1 after update on t1 for each row begin
+            insert into t2 values (NULL, changes(), NULL);
+            delete from t0 where oid=1 or oid=2;
+            update t2 set v2=changes();
+        end;
+        update t1 set k=k;
+        select changes();
+    }
+} {0 1}
+
+# changes() unchanged upon entry into after update trigger
+do_test laststmtchanges-3.2 {
+    catchsql {
+        select v1 from t2;
+    }
+} {0 0}
+
+# changes() changed properly by delete within context of after update trigger
+do_test laststmtchanges-3.3 {
+    catchsql {
+        select v2 from t2;
+    }
+} {0 2}
+
+# ----------------------------------------------------------------------------
+# 4.x - tests with before delete trigger
+
+# changes() changed properly on delete from table containing before trigger
+do_test laststmtchanges-4.1 {
+    catchsql {
+        drop trigger r1;
+        delete from t2; delete from t2;
+        create trigger r1 before delete on t1 for each row begin
+            insert into t2 values (NULL, changes(), NULL);
+            insert into t0 values (5);
+            update t2 set v2=changes();
+        end;
+        delete from t1;
+        select changes();
+    }
+} {0 1}
+
+# changes() unchanged upon entry into before delete trigger
+do_test laststmtchanges-4.2 {
+    catchsql {
+        select v1 from t2;
+    }
+} {0 0}
+
+# changes() changed properly by insert within context of before delete trigger
+do_test laststmtchanges-4.3 {
+    catchsql {
+        select v2 from t2;
+    }
+} {0 1}
+
+# ----------------------------------------------------------------------------
+# 5.x - complex tests with temporary tables and nested instead of triggers
+# These tests cannot run if the library does not have view support enabled.
+
+ifcapable view&&tempdb {
+
+do_test laststmtchanges-5.1 {
+    catchsql {
+        drop table t0; drop table t1; drop table t2;
+        create temp table t0(x);
+        create temp table t1 (k integer primary key);
+        create temp table t2 (k integer primary key);
+        create temp view v1 as select * from t1;
+        create temp view v2 as select * from t2;
+        create temp table n1 (k integer primary key, n);
+        create temp table n2 (k integer primary key, n);
+        insert into t0 values (1);
+        insert into t0 values (2);
+        insert into t0 values (1);
+        insert into t0 values (1);
+        insert into t0 values (1);
+        insert into t0 values (2);
+        insert into t0 values (2);
+        insert into t0 values (1);
+        create temp trigger r1 instead of insert on v1 for each row begin
+            insert into n1 values (NULL, changes());
+            update t0 set x=x*10 where x=1;
+            insert into n1 values (NULL, changes());
+            insert into t1 values (NEW.k);
+            insert into n1 values (NULL, changes());
+            update t0 set x=x*10 where x=0;
+            insert into v2 values (100+NEW.k);
+            insert into n1 values (NULL, changes());
+        end;
+        create temp trigger r2 instead of insert on v2 for each row begin
+            insert into n2 values (NULL, changes());
+            insert into t2 values (1000+NEW.k);
+            insert into n2 values (NULL, changes());
+            update t0 set x=x*100 where x=0;
+            insert into n2 values (NULL, changes());
+            delete from t0 where x=2;
+            insert into n2 values (NULL, changes());
+        end;
+        insert into t1 values (77);
+        select changes();
+    }
+} {0 1}
+
+do_test laststmtchanges-5.2 {
+    catchsql {
+        delete from t1 where k=88;
+        select changes();
+    }
+} {0 0}
+
+do_test laststmtchanges-5.3 {
+    catchsql {
+        insert into v1 values (5);
+        select changes();
+    }
+} {0 0}
+
+do_test laststmtchanges-5.4 {
+    catchsql {
+        select n from n1;
+    }
+} {0 {0 5 1 0}}
+
+do_test laststmtchanges-5.5 {
+    catchsql {
+        select n from n2;
+    }
+} {0 {0 1 0 3}}
+
+} ;# ifcapable view
+
+
+# ----------------------------------------------------------------------------
+# 6.x - Test "DELETE FROM <table>" in the absence of triggers
+#
+do_test laststmtchanges-6.1 {
+  execsql {
+    CREATE TABLE t3(a, b, c);
+    INSERT INTO t3 VALUES(1, 2, 3);
+    INSERT INTO t3 VALUES(4, 5, 6);
+  }
+} {}
+do_test laststmtchanges-6.2 {
+  execsql {
+    BEGIN;
+    DELETE FROM t3;
+    SELECT changes();
+  }
+} {2}
+do_test laststmtchanges-6.3 {
+  execsql {
+    ROLLBACK;
+    BEGIN;
+    DELETE FROM t3 WHERE a IS NOT NULL;
+    SELECT changes();
+  }
+} {2}
+do_test laststmtchanges-6.4 {
+  execsql {
+    ROLLBACK;
+    CREATE INDEX t3_i1 ON t3(a);
+    BEGIN;
+    DELETE FROM t3;
+    SELECT changes();
+  }
+} {2}
+do_test laststmtchanges-6.5 {
+  execsql { ROLLBACK }
+  set nTotalChange [execsql {SELECT total_changes()}]
+  expr 0
+} {0}
+do_test laststmtchanges-6.6 {
+  execsql {
+    SELECT total_changes();
+    DELETE FROM t3;
+    SELECT total_changes();
+  }
+} [list $nTotalChange [expr $nTotalChange+2]]
+
+finish_test
diff --git a/test/lemon-test01.y b/test/lemon-test01.y
new file mode 100644
index 0000000000000000000000000000000000000000..67890c637650e062a8fc23d1c6007cf80539251c
--- /dev/null
+++ b/test/lemon-test01.y
@@ -0,0 +1,80 @@
+// A test case for the LEMON parser generator.  Run as follows:
+//
+//     lemon lemon-test01.y && gcc -g lemon-test01.c && ./a.out
+//
+// This testcase was made obsolete by check-in 7cca80808cef192f on
+// 2021-08-17 (associated with Forum Thread 
+// https://sqlite.org/forum/forumpost/bd91fd965c9803c4) and no longer
+// works.  It is retained for historical reference only.
+//
+%token_prefix TK_
+%token_type   int
+%default_type int
+%include {
+  static int nSyntaxError = 0;
+  static int nAccept = 0;
+  static int nFailure = 0;
+}
+
+all ::=  A B.
+all ::=  error B.
+
+%syntax_error {
+  nSyntaxError++;
+}
+%parse_accept {
+  nAccept++;
+}
+%parse_failure {
+  nFailure++;
+}
+%code {
+  #include <assert.h>
+  #include "lemon-test01.h"
+  static int nTest = 0;
+  static int nErr = 0;
+  static void testCase(int testId, int shouldBe, int actual){
+    nTest++;
+    if( shouldBe==actual ){
+      printf("test %d: ok\n", testId);
+    }else{
+      printf("test %d: got %d, expected %d\n", testId, actual, shouldBe);
+      nErr++;
+    }
+  }
+  int main(int argc, char **argv){
+    yyParser xp;
+    ParseInit(&xp);
+    Parse(&xp, TK_A, 0);
+    Parse(&xp, TK_B, 0);
+    Parse(&xp, 0, 0);
+    ParseFinalize(&xp);
+    testCase(100, 0, nSyntaxError);
+    testCase(110, 1, nAccept);
+    testCase(120, 0, nFailure);
+    nSyntaxError = nAccept = nFailure = 0;
+    ParseInit(&xp);
+    Parse(&xp, TK_B, 0);
+    Parse(&xp, TK_B, 0);
+    Parse(&xp, 0, 0);
+    ParseFinalize(&xp);
+    testCase(200, 1, nSyntaxError);
+    testCase(210, 1, nAccept);
+    testCase(220, 0, nFailure);
+    nSyntaxError = nAccept = nFailure = 0;
+    ParseInit(&xp);
+    Parse(&xp, TK_A, 0);
+    Parse(&xp, TK_A, 0);
+    Parse(&xp, 0, 0);
+    ParseFinalize(&xp);
+    testCase(200, 1, nSyntaxError);
+    testCase(210, 0, nAccept);
+    testCase(220, 0, nFailure);
+    if( nErr==0 ){
+      printf("%d tests pass\n", nTest);
+    }else{
+      printf("%d errors out %d tests\n", nErr, nTest);
+    }
+    return nErr;
+  }
+}
diff --git a/test/like.test b/test/like.test
new file mode 100644
index 0000000000000000000000000000000000000000..0d732b569c43253753c09c411584a28f28c8b9d3
--- /dev/null
+++ b/test/like.test
@@ -0,0 +1,1163 @@
+# 2005 August 13
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the LIKE and GLOB operators and
+# in particular the optimizations that occur to help those operators
+# run faster.
+#
+# $Id: like.test,v 1.13 2009/06/07 23:45:11 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix like
+
+# Create some sample data to work with.
+#
+do_test like-1.0 {
+  execsql {
+    CREATE TABLE t1(x TEXT);
+  }
+  foreach str {
+    a
+    ab
+    abc
+    abcd
+
+    acd
+    abd
+    bc
+    bcd
+
+    xyz
+    ABC
+    CDE
+    {ABC abc xyz}
+  } {
+    db eval {INSERT INTO t1 VALUES(:str)}
+  }
+  execsql {
+    SELECT count(*) FROM t1;
+  }
+} {12}
+
+# Test that both case sensitive and insensitive version of LIKE work.
+#
+do_test like-1.1 {
+  execsql {
+    SELECT x FROM t1 WHERE x LIKE 'abc' ORDER BY 1;
+  }
+} {ABC abc}
+do_test like-1.2 {
+  execsql {
+    SELECT x FROM t1 WHERE x GLOB 'abc' ORDER BY 1;
+  }
+} {abc}
+do_test like-1.3 {
+  execsql {
+    SELECT x FROM t1 WHERE x LIKE 'ABC' ORDER BY 1;
+  }
+} {ABC abc}
+do_test like-1.4 {
+  execsql {
+    SELECT x FROM t1 WHERE x LIKE 'aBc' ORDER BY 1;
+  }
+} {ABC abc}
+do_test like-1.5.1 {
+  # Use sqlite3_exec() to verify fix for ticket [25ee81271091] 2011-06-26
+  sqlite3_exec db {PRAGMA case_sensitive_like=on}
+} {0 {}}
+do_test like-1.5.2 {
+  execsql {
+    SELECT x FROM t1 WHERE x LIKE 'abc' ORDER BY 1;
+  }
+} {abc}
+do_test like-1.5.3 {
+  execsql {
+    PRAGMA case_sensitive_like; -- no argument; does not change setting
+    SELECT x FROM t1 WHERE x LIKE 'abc' ORDER BY 1;
+  }
+} {abc}
+do_test like-1.6 {
+  execsql {
+    SELECT x FROM t1 WHERE x GLOB 'abc' ORDER BY 1;
+  }
+} {abc}
+do_test like-1.7 {
+  execsql {
+    SELECT x FROM t1 WHERE x LIKE 'ABC' ORDER BY 1;
+  }
+} {ABC}
+do_test like-1.8 {
+  execsql {
+    SELECT x FROM t1 WHERE x LIKE 'aBc' ORDER BY 1;
+  }
+} {}
+do_test like-1.9 {
+  execsql {
+    PRAGMA case_sensitive_like=off;
+    SELECT x FROM t1 WHERE x LIKE 'abc' ORDER BY 1;
+  }
+} {ABC abc}
+do_test like-1.10 {
+  execsql {
+    PRAGMA case_sensitive_like;  -- No argument, does not change setting.
+    SELECT x FROM t1 WHERE x LIKE 'abc' ORDER BY 1;
+  }
+} {ABC abc}
+
+# Tests of the REGEXP operator
+#
+do_test like-2.1 {
+  proc test_regexp {a b} {
+    return [regexp $a $b]
+  }
+  db function regexp -argcount 2 test_regexp
+  execsql {
+    SELECT x FROM t1 WHERE x REGEXP 'abc' ORDER BY 1;
+  }
+} {{ABC abc xyz} abc abcd}
+do_test like-2.2 {
+  execsql {
+    SELECT x FROM t1 WHERE x REGEXP '^abc' ORDER BY 1;
+  }
+} {abc abcd}
+
+# Tests of the MATCH operator
+#
+do_test like-2.3 {
+  proc test_match {a b} {
+    return [string match $a $b]
+  }
+  db function match -argcount 2 test_match
+  execsql {
+    SELECT x FROM t1 WHERE x MATCH '*abc*' ORDER BY 1;
+  }
+} {{ABC abc xyz} abc abcd}
+do_test like-2.4 {
+  execsql {
+    SELECT x FROM t1 WHERE x MATCH 'abc*' ORDER BY 1;
+  }
+} {abc abcd}
+
+# For the remaining tests, we need to have the like optimizations
+# enabled.
+#
+ifcapable !like_opt {
+  finish_test
+  return
+} 
+
+# This procedure executes the SQL.  Then it appends to the result the
+# "sort" or "nosort" keyword (as in the cksort procedure above) then
+# it appends the names of the table and index used.
+#
+proc queryplan {sql} {
+  set ::sqlite_sort_count 0
+  db cache flush
+  set data [execsql $sql]
+  if {$::sqlite_sort_count} {set x sort} {set x nosort}
+  lappend data $x
+  set eqp [execsql "EXPLAIN QUERY PLAN $sql"]
+  # puts eqp=$eqp
+  foreach {a b c x} $eqp {
+    if {[regexp {(SCAN|SEARCH) (\w+ AS )?(\w+) USING COVERING INDEX (\w+)\y} \
+        $x all ss as tab idx]} {
+      lappend data {} $idx
+    } elseif {[regexp {(SCAN|SEARCH) (\w+ AS )?(\w+) USING.* INDEX (\w+)\y} \
+        $x all ss as tab idx]} {
+      lappend data $tab $idx
+    } elseif {[regexp {(SCAN|SEARCH) (\w+ AS )?(\w+)\y} $x all ss as tab]} {
+      lappend data $tab *
+    }
+  }
+  return $data   
+}
+
+# Perform tests on the like optimization.
+#
+# With no index on t1.x and with case sensitivity turned off, no optimization
+# is performed.
+#
+do_test like-3.1 {
+  set sqlite_like_count 0
+  queryplan {
+    SELECT x FROM t1 WHERE x LIKE 'abc%' ORDER BY 1;
+  }
+} {ABC {ABC abc xyz} abc abcd sort t1 *}
+do_test like-3.2 {
+  set sqlite_like_count
+} {12}
+
+# With an index on t1.x and case sensitivity on, optimize completely.
+#
+do_test like-3.3.100 {
+  set sqlite_like_count 0
+  execsql {
+    PRAGMA case_sensitive_like=on;
+    CREATE INDEX i1 ON t1(x);
+  }
+  queryplan {
+    SELECT x FROM t1 WHERE x LIKE 'abc%' ORDER BY 1;
+  }
+} {abc abcd nosort {} i1}
+do_test like-3.3.100.cnt {
+  set sqlite_like_count
+} 0
+
+# The like optimization works even when the pattern is a bound parameter
+#
+# Exception: It does not work if sqlite3_prepare() is used instead of
+# sqlite3_prepare_v2(), as in that case the statement cannot be reprepared
+# after the parameter is bound.
+#
+unset -nocomplain ::likepat
+set ::likepat abc%
+if {[permutation]!="prepare"} {
+  do_test like-3.3.102 {
+    set sqlite_like_count 0
+    queryplan {
+      SELECT x FROM t1 WHERE x LIKE $::likepat ORDER BY 1;
+    }
+  } {abc abcd nosort {} i1}
+  do_test like-3.3.103 {
+    set sqlite_like_count
+  } 0
+}
+
+# Except, the like optimization does not work for bound parameters if
+# the query planner stability guarantee is active.
+#
+do_test like-3.3.104 {
+  set sqlite_like_count 0
+  sqlite3_db_config db QPSG 1
+  queryplan {
+    SELECT x FROM t1 WHERE x LIKE $::likepat ORDER BY 1;
+  }
+} {abc abcd nosort {} i1}
+do_test like-3.3.105 {
+  set sqlite_like_count
+} 12
+
+# The query planner stability guarantee does not disrupt explicit patterns
+#
+do_test like-3.3.105 {
+  set sqlite_like_count 0
+  queryplan {
+    SELECT x FROM t1 WHERE x LIKE 'abc%' ORDER BY 1;
+  }
+} {abc abcd nosort {} i1}
+do_test like-3.3.106 {
+  set sqlite_like_count
+} 0
+sqlite3_db_config db QPSG 0
+
+# The LIKE optimization still works when the RHS is a string with no
+# wildcard.  Ticket [e090183531fc2747]
+#
+do_test like-3.4.2 {
+  queryplan {
+    SELECT x FROM t1 WHERE x LIKE 'a' ORDER BY 1;
+  }
+} {a nosort {} i1}
+do_test like-3.4.3 {
+  queryplan {
+    SELECT x FROM t1 WHERE x LIKE 'ab' ORDER BY 1;
+  }
+} {ab nosort {} i1}
+do_test like-3.4.4 {
+  queryplan {
+    SELECT x FROM t1 WHERE x LIKE 'abcd' ORDER BY 1;
+  }
+} {abcd nosort {} i1}
+do_test like-3.4.5 {
+  queryplan {
+    SELECT x FROM t1 WHERE x LIKE 'abcde' ORDER BY 1;
+  }
+} {nosort {} i1}
+
+
+# Partial optimization when the pattern does not end in '%'
+#
+do_test like-3.5 {
+  set sqlite_like_count 0
+  queryplan {
+    SELECT x FROM t1 WHERE x LIKE 'a_c' ORDER BY 1;
+  }
+} {abc nosort {} i1}
+do_test like-3.6 {
+  set sqlite_like_count
+} 6
+do_test like-3.7 {
+  set sqlite_like_count 0
+  queryplan {
+    SELECT x FROM t1 WHERE x LIKE 'ab%d' ORDER BY 1;
+  }
+} {abcd abd nosort {} i1}
+do_test like-3.8 {
+  set sqlite_like_count
+} 4
+do_test like-3.9 {
+  set sqlite_like_count 0
+  queryplan {
+    SELECT x FROM t1 WHERE x LIKE 'a_c%' ORDER BY 1;
+  }
+} {abc abcd nosort {} i1}
+do_test like-3.10 {
+  set sqlite_like_count
+} 6
+
+# No optimization when the pattern begins with a wildcard.
+# Note that the index is still used but only for sorting.
+#
+do_test like-3.11 {
+  set sqlite_like_count 0
+  queryplan {
+    SELECT x FROM t1 WHERE x LIKE '%bcd' ORDER BY 1;
+  }
+} {abcd bcd nosort {} i1}
+do_test like-3.12 {
+  set sqlite_like_count
+} 12
+
+# No optimization for case insensitive LIKE
+#
+do_test like-3.13 {
+  set sqlite_like_count 0
+  db eval {PRAGMA case_sensitive_like=off;}
+  queryplan {
+    SELECT x FROM t1 WHERE x LIKE 'abc%' ORDER BY 1;
+  }
+} {ABC {ABC abc xyz} abc abcd nosort {} i1}
+do_test like-3.14 {
+  set sqlite_like_count
+} 12
+
+# No optimization without an index.
+#
+do_test like-3.15 {
+  set sqlite_like_count 0
+  db eval {
+    PRAGMA case_sensitive_like=on;
+    DROP INDEX i1;
+  }
+  queryplan {
+    SELECT x FROM t1 WHERE x LIKE 'abc%' ORDER BY 1;
+  }
+} {abc abcd sort t1 *}
+do_test like-3.16 {
+  set sqlite_like_count
+} 12
+
+# No GLOB optimization without an index.
+#
+do_test like-3.17 {
+  set sqlite_like_count 0
+  queryplan {
+    SELECT x FROM t1 WHERE x GLOB 'abc*' ORDER BY 1;
+  }
+} {abc abcd sort t1 *}
+do_test like-3.18 {
+  set sqlite_like_count
+} 12
+
+# GLOB is optimized regardless of the case_sensitive_like setting.
+#
+do_test like-3.19 {
+  set sqlite_like_count 0
+  db eval {CREATE INDEX i1 ON t1(x);}
+  queryplan {
+    SELECT x FROM t1 WHERE x GLOB 'abc*' ORDER BY 1;
+  }
+} {abc abcd nosort {} i1}
+do_test like-3.20 {
+  set sqlite_like_count
+} 0
+do_test like-3.21 {
+  set sqlite_like_count 0
+  db eval {PRAGMA case_sensitive_like=on;}
+  queryplan {
+    SELECT x FROM t1 WHERE x GLOB 'abc*' ORDER BY 1;
+  }
+} {abc abcd nosort {} i1}
+do_test like-3.22 {
+  set sqlite_like_count
+} 0
+do_test like-3.23 {
+  set sqlite_like_count 0
+  db eval {PRAGMA case_sensitive_like=off;}
+  queryplan {
+    SELECT x FROM t1 WHERE x GLOB 'a[bc]d' ORDER BY 1;
+  }
+} {abd acd nosort {} i1}
+do_test like-3.24 {
+  set sqlite_like_count
+} 6
+
+# GLOB optimization when there is no wildcard.  Ticket [e090183531fc2747]
+#
+do_test like-3.25 {
+  queryplan {
+    SELECT x FROM t1 WHERE x GLOB 'a' ORDER BY 1;
+  }
+} {a nosort {} i1}
+do_test like-3.26 {
+  queryplan {
+    SELECT x FROM t1 WHERE x GLOB 'abcd' ORDER BY 1;
+  }
+} {abcd nosort {} i1}
+do_test like-3.27 {
+  queryplan {
+    SELECT x FROM t1 WHERE x GLOB 'abcde' ORDER BY 1;
+  }
+} {nosort {} i1}
+
+
+
+# No optimization if the LHS of the LIKE is not a column name or
+# if the RHS is not a string.
+#
+do_test like-4.1 {
+  execsql {PRAGMA case_sensitive_like=on}
+  set sqlite_like_count 0
+  queryplan {
+    SELECT x FROM t1 WHERE x LIKE 'abc%' ORDER BY 1
+  }
+} {abc abcd nosort {} i1}
+do_test like-4.2 {
+  set sqlite_like_count
+} 0
+do_test like-4.3 {
+  set sqlite_like_count 0
+  queryplan {
+    SELECT x FROM t1 WHERE +x LIKE 'abc%' ORDER BY 1
+  }
+} {abc abcd nosort {} i1}
+do_test like-4.4 {
+  set sqlite_like_count
+} 12
+do_test like-4.5 {
+  set sqlite_like_count 0
+  queryplan {
+    SELECT x FROM t1 WHERE x LIKE ('ab' || 'c%') ORDER BY 1
+  }
+} {abc abcd nosort {} i1}
+do_test like-4.6 {
+  set sqlite_like_count
+} 12
+
+# Collating sequences on the index disable the LIKE optimization.
+# Or if the NOCASE collating sequence is used, the LIKE optimization
+# is enabled when case_sensitive_like is OFF.
+#
+do_test like-5.1 {
+  execsql {PRAGMA case_sensitive_like=off}
+  set sqlite_like_count 0
+  queryplan {
+    SELECT x FROM t1 WHERE x LIKE 'abc%' ORDER BY 1
+  }
+} {ABC {ABC abc xyz} abc abcd nosort {} i1}
+do_test like-5.2 {
+  set sqlite_like_count
+} 12
+do_test like-5.3 {
+  execsql {
+    CREATE TABLE t2(x TEXT COLLATE NOCASE);
+    INSERT INTO t2 SELECT * FROM t1 ORDER BY rowid;
+    CREATE INDEX i2 ON t2(x COLLATE NOCASE);
+  }
+  set sqlite_like_count 0
+  queryplan {
+    SELECT x FROM t2 WHERE x LIKE 'abc%' ORDER BY 1
+  }
+} {abc ABC {ABC abc xyz} abcd nosort {} i2}
+do_test like-5.4 {
+  set sqlite_like_count
+} 0
+do_test like-5.5 {
+  execsql {
+    PRAGMA case_sensitive_like=on;
+  }
+  set sqlite_like_count 0
+  queryplan {
+    SELECT x FROM t2 WHERE x LIKE 'abc%' ORDER BY 1
+  }
+} {abc abcd nosort {} i2}
+do_test like-5.6 {
+  set sqlite_like_count
+} 12
+do_test like-5.7 {
+  execsql {
+    PRAGMA case_sensitive_like=off;
+  }
+  set sqlite_like_count 0
+  queryplan {
+    SELECT x FROM t2 WHERE x GLOB 'abc*' ORDER BY 1
+  }
+} {abc abcd nosort {} i2}
+do_test like-5.8 {
+  set sqlite_like_count
+} 12
+do_test like-5.11 {
+  execsql {PRAGMA case_sensitive_like=off}
+  set sqlite_like_count 0
+  queryplan {
+    SELECT x FROM t1 WHERE x LIKE 'ABC%' ORDER BY 1
+  }
+} {ABC {ABC abc xyz} abc abcd nosort {} i1}
+do_test like-5.12 {
+  set sqlite_like_count
+} 12
+do_test like-5.13 {
+  set sqlite_like_count 0
+  queryplan {
+    SELECT x FROM t2 WHERE x LIKE 'ABC%' ORDER BY 1
+  }
+} {abc ABC {ABC abc xyz} abcd nosort {} i2}
+do_test like-5.14 {
+  set sqlite_like_count
+} 0
+do_test like-5.15 {
+  execsql {
+    PRAGMA case_sensitive_like=on;
+  }
+  set sqlite_like_count 0
+  queryplan {
+    SELECT x FROM t2 WHERE x LIKE 'ABC%' ORDER BY 1
+  }
+} {ABC {ABC abc xyz} nosort {} i2}
+do_test like-5.16 {
+  set sqlite_like_count
+} 12
+do_test like-5.17 {
+  execsql {
+    PRAGMA case_sensitive_like=off;
+  }
+  set sqlite_like_count 0
+  queryplan {
+    SELECT x FROM t2 WHERE x GLOB 'ABC*' ORDER BY 1
+  }
+} {ABC {ABC abc xyz} nosort {} i2}
+do_test like-5.18 {
+  set sqlite_like_count
+} 12
+
+# Boundary case.  The prefix for a LIKE comparison is rounded up
+# when constructing the comparison.  Example:  "ab" becomes "ac".
+# In other words, the last character is increased by one.
+#
+# Make sure this happens correctly when the last character is a 
+# "z" and we are doing case-insensitive comparisons.
+#
+# Ticket #2959
+#
+do_test like-5.21 {
+  execsql {
+    PRAGMA case_sensitive_like=off;
+    INSERT INTO t2 VALUES('ZZ-upper-upper');
+    INSERT INTO t2 VALUES('zZ-lower-upper');
+    INSERT INTO t2 VALUES('Zz-upper-lower');
+    INSERT INTO t2 VALUES('zz-lower-lower');
+  }
+  queryplan {
+    SELECT x FROM t2 WHERE x LIKE 'zz%';
+  }
+} {zz-lower-lower zZ-lower-upper Zz-upper-lower ZZ-upper-upper nosort {} i2}
+do_test like-5.22 {
+  queryplan {
+    SELECT x FROM t2 WHERE x LIKE 'zZ%';
+  }
+} {zz-lower-lower zZ-lower-upper Zz-upper-lower ZZ-upper-upper nosort {} i2}
+do_test like-5.23 {
+  queryplan {
+    SELECT x FROM t2 WHERE x LIKE 'Zz%';
+  }
+} {zz-lower-lower zZ-lower-upper Zz-upper-lower ZZ-upper-upper nosort {} i2}
+do_test like-5.24 {
+  queryplan {
+    SELECT x FROM t2 WHERE x LIKE 'ZZ%';
+  }
+} {zz-lower-lower zZ-lower-upper Zz-upper-lower ZZ-upper-upper nosort {} i2}
+do_test like-5.25 {
+  db eval {
+    PRAGMA case_sensitive_like=on;
+    CREATE TABLE t3(x TEXT);
+    CREATE INDEX i3 ON t3(x);
+    INSERT INTO t3 VALUES('ZZ-upper-upper');
+    INSERT INTO t3 VALUES('zZ-lower-upper');
+    INSERT INTO t3 VALUES('Zz-upper-lower');
+    INSERT INTO t3 VALUES('zz-lower-lower');
+  }
+  queryplan {
+    SELECT x FROM t3 WHERE x LIKE 'zz%';
+  }
+} {zz-lower-lower nosort {} i3}
+do_test like-5.26 {
+  queryplan {
+    SELECT x FROM t3 WHERE x LIKE 'zZ%';
+  }
+} {zZ-lower-upper nosort {} i3}
+do_test like-5.27 {
+  queryplan {
+    SELECT x FROM t3 WHERE x LIKE 'Zz%';
+  }
+} {Zz-upper-lower nosort {} i3}
+do_test like-5.28 {
+  queryplan {
+    SELECT x FROM t3 WHERE x LIKE 'ZZ%';
+  }
+} {ZZ-upper-upper nosort {} i3}
+
+
+# ticket #2407
+#
+# Make sure the LIKE prefix optimization does not strip off leading
+# characters of the like pattern that happen to be quote characters.
+#
+do_test like-6.1 {
+  foreach x { 'abc 'bcd 'def 'ax } {
+    set x2 '[string map {' ''} $x]'
+    db eval "INSERT INTO t2 VALUES($x2)"
+  }
+  execsql {
+    SELECT * FROM t2 WHERE x LIKE '''a%'
+  }
+} {'abc 'ax}
+
+do_test like-7.1 {
+  execsql {
+    SELECT rowid, * FROM t1 WHERE rowid GLOB '1*' ORDER BY rowid;
+  }
+} {1 a 10 ABC 11 CDE 12 {ABC abc xyz}}
+
+# ticket #3345.
+#
+# Overloading the LIKE function with -1 for the number of arguments
+# will overload both the 2-argument and the 3-argument LIKE.
+#
+do_test like-8.1 {
+  db eval {
+    CREATE TABLE t8(x);
+    INSERT INTO t8 VALUES('abcdef');
+    INSERT INTO t8 VALUES('ghijkl');
+    INSERT INTO t8 VALUES('mnopqr');
+    SELECT 1, x FROM t8 WHERE x LIKE '%h%';
+    SELECT 2, x FROM t8 WHERE x LIKE '%h%' ESCAPE 'x';
+  }
+} {1 ghijkl 2 ghijkl}
+do_test like-8.2 {
+  proc newlike {args} {return 1} ;# Alternative LIKE is always return TRUE
+  db function like newlike       ;# Uses -1 for nArg in sqlite3_create_function
+  db cache flush
+  db eval {
+    SELECT 1, x FROM t8 WHERE x LIKE '%h%';
+    SELECT 2, x FROM t8 WHERE x LIKE '%h%' ESCAPE 'x';
+  }
+} {1 ghijkl 2 ghijkl}
+do_test like-8.3 {
+  db function like -argcount 2 newlike
+  db eval {
+    SELECT 1, x FROM t8 WHERE x LIKE '%h%';
+    SELECT 2, x FROM t8 WHERE x LIKE '%h%' ESCAPE 'x';
+  }
+} {1 abcdef 1 ghijkl 1 mnopqr 2 ghijkl}
+do_test like-8.4 {
+  db function like -argcount 3 newlike
+  db eval {
+    SELECT 1, x FROM t8 WHERE x LIKE '%h%';
+    SELECT 2, x FROM t8 WHERE x LIKE '%h%' ESCAPE 'x';
+  }
+} {1 abcdef 1 ghijkl 1 mnopqr 2 abcdef 2 ghijkl 2 mnopqr}
+
+
+ifcapable like_opt&&!icu {
+  # Evaluate SQL.  Return the result set followed by the
+  # and the number of full-scan steps.
+  #
+  db close
+  sqlite3 db test.db
+  proc count_steps {sql} {
+    set r [db eval $sql]
+    lappend r scan [db status step] sort [db status sort]
+  }
+  do_test like-9.1 {
+    count_steps {
+       SELECT x FROM t2 WHERE x LIKE 'x%'
+    }
+  } {xyz scan 0 sort 0}
+  do_test like-9.2 {
+    count_steps {
+       SELECT x FROM t2 WHERE x LIKE '_y%'
+    }
+  } {xyz scan 19 sort 0}
+  do_test like-9.3.1 {
+    set res [sqlite3_exec_hex db {
+       SELECT x FROM t2 WHERE x LIKE '%78%25'
+    }]
+  } {0 {x xyz}}
+  ifcapable explain {
+    do_test like-9.3.2 {
+      set res [sqlite3_exec_hex db {
+         EXPLAIN QUERY PLAN SELECT x FROM t2 WHERE x LIKE '%78%25'
+      }]
+      regexp {INDEX i2} $res
+    } {1}
+  }
+  do_test like-9.4.1 {
+    sqlite3_exec_hex db {INSERT INTO t2 VALUES('%ffhello')}
+    set res [sqlite3_exec_hex db {
+       SELECT substr(x,2) AS x FROM t2 WHERE +x LIKE '%ff%25'
+    }]
+  } {0 {x hello}}
+  do_test like-9.4.2 {
+    set res [sqlite3_exec_hex db {
+       SELECT substr(x,2) AS x FROM t2 WHERE x LIKE '%ff%25'
+    }]
+  } {0 {x hello}}
+  ifcapable explain {
+    do_test like-9.4.3 {
+      set res [sqlite3_exec_hex db {
+         EXPLAIN QUERY PLAN SELECT x FROM t2 WHERE x LIKE '%ff%25'
+      }]
+      regexp {SCAN t2} $res
+    } {1}
+  }
+  do_test like-9.5.1 {
+    set res [sqlite3_exec_hex db {
+       SELECT 1 FROM t2 WHERE x LIKE '%fe%25'
+    }]
+  } {0 {1 1}}
+  ifcapable explain {
+    do_test like-9.5.2 {
+      set res [sqlite3_exec_hex db {
+         EXPLAIN QUERY PLAN SELECT x FROM t2 WHERE x LIKE '%fe%25'
+      }]
+      regexp {INDEX i2} $res
+    } {0}
+  }
+
+  # Do an SQL statement.  Append the search count to the end of the result.
+  #
+  proc count sql {
+    set ::sqlite_search_count 0
+    set ::sqlite_like_count 0
+    return [concat [execsql $sql] scan $::sqlite_search_count \
+             like $::sqlite_like_count]
+  }
+
+  # The LIKE and GLOB optimizations do not work on columns with
+  # affinity other than TEXT.
+  # Ticket #3901
+  #
+  do_test like-10.1 {
+    db close
+    sqlite3 db test.db
+    execsql {
+      CREATE TABLE t10(
+        a INTEGER PRIMARY KEY,
+        b INTEGER COLLATE nocase UNIQUE,
+        c NUMBER COLLATE nocase UNIQUE,
+        d BLOB COLLATE nocase UNIQUE,
+        e COLLATE nocase UNIQUE,
+        f TEXT COLLATE nocase UNIQUE
+      );
+      INSERT INTO t10 VALUES(1,1,1,1,1,1);
+      INSERT INTO t10 VALUES(12,12,12,12,12,12);
+      INSERT INTO t10 VALUES(123,123,123,123,123,123);
+      INSERT INTO t10 VALUES(234,234,234,234,234,234);
+      INSERT INTO t10 VALUES(345,345,345,345,345,345);
+      INSERT INTO t10 VALUES(45,45,45,45,45,45);
+    }
+    count {
+      SELECT a FROM t10 WHERE b LIKE '12%' ORDER BY +a;
+    }
+  } {12 123 scan 5 like 6}
+  do_test like-10.2 {
+    count {
+      SELECT a FROM t10 WHERE c LIKE '12%' ORDER BY +a;
+    }
+  } {12 123 scan 5 like 6}
+  do_test like-10.3 {
+    count {
+      SELECT a FROM t10 WHERE d LIKE '12%' ORDER BY +a;
+    }
+  } {12 123 scan 5 like 6}
+  do_test like-10.4 {
+    count {
+      SELECT a FROM t10 WHERE e LIKE '12%' ORDER BY +a;
+    }
+  } {12 123 scan 5 like 6}
+  ifcapable like_match_blobs {
+    do_test like-10.5a {
+      count {
+        SELECT a FROM t10 WHERE f LIKE '12%' ORDER BY +a;
+      }
+    } {12 123 scan 4 like 0}
+  } else {
+    do_test like-10.5b {
+      count {
+        SELECT a FROM t10 WHERE f LIKE '12%' ORDER BY +a;
+      }
+    } {12 123 scan 3 like 0}
+  }
+  do_test like-10.6 {
+    count {
+      SELECT a FROM t10 WHERE a LIKE '12%' ORDER BY +a;
+    }
+  } {12 123 scan 5 like 6}
+  do_test like-10.10 {
+    execsql {
+      CREATE TABLE t10b(
+        a INTEGER PRIMARY KEY,
+        b INTEGER UNIQUE,
+        c NUMBER UNIQUE,
+        d BLOB UNIQUE,
+        e UNIQUE,
+        f TEXT UNIQUE
+      );
+      INSERT INTO t10b SELECT * FROM t10;
+    }
+    count {
+      SELECT a FROM t10b WHERE b GLOB '12*' ORDER BY +a;
+    }
+  } {12 123 scan 5 like 6}
+  do_test like-10.11 {
+    count {
+      SELECT a FROM t10b WHERE c GLOB '12*' ORDER BY +a;
+    }
+  } {12 123 scan 5 like 6}
+  do_test like-10.12 {
+    count {
+      SELECT a FROM t10b WHERE d GLOB '12*' ORDER BY +a;
+    }
+  } {12 123 scan 5 like 6}
+  do_test like-10.13 {
+    count {
+      SELECT a FROM t10b WHERE e GLOB '12*' ORDER BY +a;
+    }
+  } {12 123 scan 5 like 6}
+  ifcapable like_match_blobs {
+    do_test like-10.14 {
+      count {
+        SELECT a FROM t10b WHERE f GLOB '12*' ORDER BY +a;
+      }
+    } {12 123 scan 4 like 0}
+  } else {
+    do_test like-10.14 {
+      count {
+        SELECT a FROM t10b WHERE f GLOB '12*' ORDER BY +a;
+      }
+    } {12 123 scan 3 like 0}
+  }
+  do_test like-10.15 {
+    count {
+      SELECT a FROM t10b WHERE a GLOB '12*' ORDER BY +a;
+    }
+  } {12 123 scan 5 like 6}
+}
+
+# LIKE and GLOB where the default collating sequence is not appropriate
+# but an index with the appropriate collating sequence exists.
+#
+do_test like-11.0 {
+  execsql {
+    CREATE TABLE t11(
+      a INTEGER PRIMARY KEY,
+      b TEXT COLLATE nocase,
+      c TEXT COLLATE binary
+    );
+    INSERT INTO t11 VALUES(1, 'a','a');
+    INSERT INTO t11 VALUES(2, 'ab','ab');
+    INSERT INTO t11 VALUES(3, 'abc','abc');
+    INSERT INTO t11 VALUES(4, 'abcd','abcd');
+    INSERT INTO t11 VALUES(5, 'A','A');
+    INSERT INTO t11 VALUES(6, 'AB','AB');
+    INSERT INTO t11 VALUES(7, 'ABC','ABC');
+    INSERT INTO t11 VALUES(8, 'ABCD','ABCD');
+    INSERT INTO t11 VALUES(9, 'x','x');
+    INSERT INTO t11 VALUES(10, 'yz','yz');
+    INSERT INTO t11 VALUES(11, 'X','X');
+    INSERT INTO t11 VALUES(12, 'YZ','YZ');
+    SELECT count(*) FROM t11;
+  }
+} {12}
+do_test like-11.1 {
+  db eval {PRAGMA case_sensitive_like=OFF;}
+  queryplan {
+    SELECT b FROM t11 WHERE b LIKE 'abc%' ORDER BY a;
+  }
+} {abc abcd ABC ABCD nosort t11 *}
+do_test like-11.2 {
+  db eval {PRAGMA case_sensitive_like=ON;}
+  queryplan {
+    SELECT b FROM t11 WHERE b LIKE 'abc%' ORDER BY a;
+  }
+} {abc abcd nosort t11 *}
+do_test like-11.3 {
+  db eval {
+    PRAGMA case_sensitive_like=OFF;
+    CREATE INDEX t11b ON t11(b);
+  }
+  queryplan {
+    SELECT b FROM t11 WHERE b LIKE 'abc%' ORDER BY +a;
+  }
+} {abc abcd ABC ABCD sort {} t11b}
+do_test like-11.4 {
+  db eval {PRAGMA case_sensitive_like=ON;}
+  queryplan {
+    SELECT b FROM t11 WHERE b LIKE 'abc%' ORDER BY a;
+  }
+} {abc abcd nosort t11 *}
+do_test like-11.5 {
+  db eval {
+    PRAGMA case_sensitive_like=OFF;
+    DROP INDEX t11b;
+    CREATE INDEX t11bnc ON t11(b COLLATE nocase);
+  }
+  queryplan {
+    SELECT b FROM t11 WHERE b LIKE 'abc%' ORDER BY +a;
+  }
+} {abc abcd ABC ABCD sort {} t11bnc}
+do_test like-11.6 {
+  db eval {CREATE INDEX t11bb ON t11(b COLLATE binary);}
+  queryplan {
+    SELECT b FROM t11 WHERE b LIKE 'abc%' ORDER BY +a;
+  }
+} {abc abcd ABC ABCD sort {} t11bnc}
+do_test like-11.7 {
+  db eval {PRAGMA case_sensitive_like=ON;}
+  queryplan {
+    SELECT b FROM t11 WHERE b LIKE 'abc%' ORDER BY +a;
+  }
+} {abc abcd sort {} t11bb}
+do_test like-11.8 {
+  db eval {PRAGMA case_sensitive_like=OFF;}
+  queryplan {
+    SELECT b FROM t11 WHERE b GLOB 'abc*' ORDER BY +a;
+  }
+} {abc abcd sort {} t11bb}
+do_test like-11.9 {
+  db eval {
+    CREATE INDEX t11cnc ON t11(c COLLATE nocase);
+    CREATE INDEX t11cb ON t11(c COLLATE binary);
+  }
+  queryplan {
+    SELECT c FROM t11 WHERE c LIKE 'abc%' ORDER BY +a;
+  }
+} {abc abcd ABC ABCD sort {} t11cnc}
+do_test like-11.10 {
+  queryplan {
+    SELECT c FROM t11 WHERE c GLOB 'abc*' ORDER BY +a;
+  }
+} {abc abcd sort {} t11cb}
+
+# A COLLATE clause on the pattern does not change the result of a
+# LIKE operator.
+#
+do_execsql_test like-12.1 {
+  CREATE TABLE t12nc(id INTEGER, x TEXT UNIQUE COLLATE nocase);
+  INSERT INTO t12nc VALUES(1,'abcde'),(2,'uvwxy'),(3,'ABCDEF');
+  CREATE TABLE t12b(id INTEGER, x TEXT UNIQUE COLLATE binary);
+  INSERT INTO t12b VALUES(1,'abcde'),(2,'uvwxy'),(3,'ABCDEF');
+  SELECT id FROM t12nc WHERE x LIKE 'abc%' ORDER BY +id;
+} {1 3}
+do_execsql_test like-12.2 {
+  SELECT id FROM t12b WHERE x LIKE 'abc%' ORDER BY +id;
+} {1 3}
+do_execsql_test like-12.3 {
+  SELECT id FROM t12nc WHERE x LIKE 'abc%' COLLATE binary ORDER BY +id;
+} {1 3}
+do_execsql_test like-12.4 {
+  SELECT id FROM t12b WHERE x LIKE 'abc%' COLLATE binary ORDER BY +id;
+} {1 3}
+do_execsql_test like-12.5 {
+  SELECT id FROM t12nc WHERE x LIKE 'abc%' COLLATE nocase ORDER BY +id;
+} {1 3}
+do_execsql_test like-12.6 {
+  SELECT id FROM t12b WHERE x LIKE 'abc%' COLLATE nocase ORDER BY +id;
+} {1 3}
+
+# Adding a COLLATE clause to the pattern of a LIKE operator does nothing
+# to change the suitability of using an index to satisfy that LIKE
+# operator.
+#
+do_execsql_test like-12.11 {
+  EXPLAIN QUERY PLAN
+  SELECT id FROM t12nc WHERE x LIKE 'abc%' ORDER BY +id;
+} {/SEARCH/}
+do_execsql_test like-12.12 {
+  EXPLAIN QUERY PLAN
+  SELECT id FROM t12b WHERE x LIKE 'abc%' ORDER BY +id;
+} {/SCAN/}
+do_execsql_test like-12.13 {
+  EXPLAIN QUERY PLAN
+  SELECT id FROM t12nc WHERE x LIKE 'abc%' COLLATE nocase ORDER BY +id;
+} {/SEARCH/}
+do_execsql_test like-12.14 {
+  EXPLAIN QUERY PLAN
+  SELECT id FROM t12b WHERE x LIKE 'abc%' COLLATE nocase ORDER BY +id;
+} {/SCAN/}
+do_execsql_test like-12.15 {
+  EXPLAIN QUERY PLAN
+  SELECT id FROM t12nc WHERE x LIKE 'abc%' COLLATE binary ORDER BY +id;
+} {/SEARCH/}
+do_execsql_test like-12.16 {
+  EXPLAIN QUERY PLAN
+  SELECT id FROM t12b WHERE x LIKE 'abc%' COLLATE binary ORDER BY +id;
+} {/SCAN/}
+
+# Ticket [https://www.sqlite.org/src/tktview/80369eddd5c94d49f7fbbcf5]
+# 2016-01-20
+#
+do_execsql_test like-13.1 {
+  SELECT char(0x304d) LIKE char(0x306d);
+} {0}
+do_execsql_test like-13.2 {
+  SELECT char(0x4d) LIKE char(0x306d);
+} {0}
+do_execsql_test like-13.3 {
+  SELECT char(0x304d) LIKE char(0x6d);
+} {0}
+do_execsql_test like-13.4 {
+  SELECT char(0x4d) LIKE char(0x6d);
+} {1}
+
+# Performance testing for patterns with many wildcards.  These LIKE and GLOB
+# patterns were quite slow with SQLite 3.15.2 and earlier.
+#
+do_test like-14.1 {
+  set x [lindex [time {
+    db one {SELECT 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaz'GLOB'*a*a*a*a*a*a*a*a*y'}
+  }] 0]
+  set tlimit [expr {1000 * $::sqlite_options(configslower)}]
+  puts -nonewline " ($x ms - want less than $tlimit) "
+  expr {$x<$tlimit}
+} {1}
+ifcapable !icu {
+  do_test like-14.2 {
+    set x [lindex [time {
+      db one {SELECT 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaz'LIKE'%a%a%a%a%a%a%a%a%y'}
+    }] 0]
+  set tlimit [expr {1000 * $::sqlite_options(configslower)}]
+  puts -nonewline " ($x ms - want less than $tlimit) "
+  expr {$x<$tlimit}
+  } {1}
+}
+
+ifcapable !icu {
+# As of 2017-07-27 (3.21.0) the LIKE optimization works with ESCAPE as
+# long as the ESCAPE is a single-byte literal.
+#
+db close
+sqlite3 db :memory:
+do_execsql_test like-15.100 {
+  CREATE TABLE t15(x TEXT COLLATE nocase, y, PRIMARY KEY(x));
+  INSERT INTO t15(x,y) VALUES
+    ('abcde',1), ('ab%de',2), ('a_cde',3),
+    ('uvwxy',11),('uvwx%',12),('uvwx_',13),
+    ('_bcde',21),('%bcde',22),
+    ('abcd_',31),('abcd%',32),
+    ('ab%xy',41);
+  SELECT y FROM t15 WHERE x LIKE 'ab/%d%' ESCAPE '/';
+} {2}
+do_execsql_test like-15.101 {
+  EXPLAIN QUERY PLAN
+  SELECT y FROM t15 WHERE x LIKE 'ab/%d%' ESCAPE '/';
+} {/SEARCH/}
+do_execsql_test like-15.102 {
+  EXPLAIN QUERY PLAN
+  SELECT y FROM t15 WHERE x LIKE 'ab/%d%' ESCAPE '//';
+} {/SCAN/}
+do_execsql_test like-15.103 {
+  EXPLAIN QUERY PLAN
+  SELECT y FROM t15 WHERE x LIKE 'ab/%d%' ESCAPE '';
+} {/SCAN/}
+do_execsql_test like-15.110 {
+  SELECT y FROM t15 WHERE x LIKE 'abcdx%%' ESCAPE 'x';
+} {32}
+do_execsql_test like-15.111 {
+  SELECT y FROM t15 WHERE x LIKE 'abx%%' ESCAPE 'x' ORDER BY +y
+} {2 41}
+do_execsql_test like-15.112 {
+  EXPLAIN QUERY PLAN
+  SELECT y FROM t15 WHERE x LIKE 'abx%%' ESCAPE 'x' ORDER BY +y
+} {/SEARCH/}
+do_execsql_test like-15.120 {
+  SELECT y FROM t15 WHERE x LIKE '/%bc%' ESCAPE '/';
+} {22}
+do_execsql_test like-15.121 {
+  EXPLAIN QUERY PLAN
+  SELECT y FROM t15 WHERE x LIKE '/%bc%' ESCAPE '/';
+} {/SEARCH/}
+}
+
+#-------------------------------------------------------------------------
+# Tests for ticket [b1d8c79314].
+#
+reset_db
+do_execsql_test 16.0 {
+  CREATE TABLE t1(a INTEGER COLLATE NOCASE);
+  CREATE INDEX i1 ON t1(a);
+  INSERT INTO t1 VALUES(' 1x');
+  INSERT INTO t1 VALUES(' 1-');
+}
+do_execsql_test 16.1 {
+  SELECT * FROM t1 WHERE a LIKE ' 1%';
+} {{ 1x} { 1-}}
+do_execsql_test 16.2 {
+  SELECT * FROM t1 WHERE a LIKE ' 1-';
+} {{ 1-}}
+
+# 2020-03-19
+# The ESCAPE clause on LIKE takes precedence over wildcards
+#
+do_execsql_test 17.0 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(id INTEGER PRIMARY KEY, x TEXT);
+  INSERT INTO t1 VALUES
+    (1,'abcde'),
+    (2,'abc_'),
+    (3,'abc__'),
+    (4,'abc%'),
+    (5,'abc%%');
+  SELECT id FROM t1 WHERE x LIKE 'abc%%' ESCAPE '%';
+} {4}
+do_execsql_test 17.1 {
+  SELECT id FROM t1 WHERE x LIKE 'abc__' ESCAPE '_';
+} {2}
+
+# 2021-02-15 ticket c0aeea67d58ae0fd
+#
+do_execsql_test 17.1 {
+  SELECT 'x' LIKE '%' ESCAPE '_';
+} {1}
+
+
+# 2023-08-15 https://sqlite.org/forum/forumpost/925dc9f67804c540
+#
+reset_db
+sqlite3_db_config db DEFENSIVE 1
+db eval {PRAGMA trusted_schema=OFF}
+do_execsql_test 18.0 {
+  CREATE TABLE t1(x INT, y TEXT);
+  INSERT INTO t1 VALUES(1,'abc'),(2,'ABC'),(3,'Abc');
+  CREATE VIEW t2 AS SELECT * FROM t1 WHERE y LIKE 'a%';
+  SELECT * FROM t2;
+} {1 abc 2 ABC 3 Abc}
+do_execsql_test 18.1 {
+  PRAGMA case_sensitive_like=OFF;
+  SELECT * FROM t2;
+} {1 abc 2 ABC 3 Abc}
+do_execsql_test 18.2 {
+  PRAGMA case_sensitive_like=ON;
+  SELECT * FROM t2;
+} {1 abc}
+
+finish_test
diff --git a/test/like2.test b/test/like2.test
new file mode 100644
index 0000000000000000000000000000000000000000..2a4474edced1515ae73b818620bc34759acd1303
--- /dev/null
+++ b/test/like2.test
@@ -0,0 +1,1017 @@
+# 2008 May 26
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the LIKE and GLOB operators and
+# in particular the optimizations that occur to help those operators
+# run faster.
+#
+# $Id: like2.test,v 1.1 2008/05/26 18:33:41 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test like2-1.1 {
+  db eval {
+    CREATE TABLE t1(x INT, y COLLATE NOCASE);
+    INSERT INTO t1(x,y) VALUES(1,CAST(x'01' AS TEXT));
+    INSERT INTO t1(x,y) VALUES(2,CAST(x'02' AS TEXT));
+    INSERT INTO t1(x,y) VALUES(3,CAST(x'03' AS TEXT));
+    INSERT INTO t1(x,y) VALUES(4,CAST(x'04' AS TEXT));
+    INSERT INTO t1(x,y) VALUES(5,CAST(x'05' AS TEXT));
+    INSERT INTO t1(x,y) VALUES(6,CAST(x'06' AS TEXT));
+    INSERT INTO t1(x,y) VALUES(7,CAST(x'07' AS TEXT));
+    INSERT INTO t1(x,y) VALUES(8,CAST(x'08' AS TEXT));
+    INSERT INTO t1(x,y) VALUES(9,CAST(x'09' AS TEXT));
+    INSERT INTO t1(x,y) VALUES(10,CAST(x'0a' AS TEXT));
+    INSERT INTO t1(x,y) VALUES(11,CAST(x'0b' AS TEXT));
+    INSERT INTO t1(x,y) VALUES(12,CAST(x'0c' AS TEXT));
+    INSERT INTO t1(x,y) VALUES(13,CAST(x'0d' AS TEXT));
+    INSERT INTO t1(x,y) VALUES(14,CAST(x'0e' AS TEXT));
+    INSERT INTO t1(x,y) VALUES(15,CAST(x'0f' AS TEXT));
+    INSERT INTO t1(x,y) VALUES(16,CAST(x'10' AS TEXT));
+    INSERT INTO t1(x,y) VALUES(17,CAST(x'11' AS TEXT));
+    INSERT INTO t1(x,y) VALUES(18,CAST(x'12' AS TEXT));
+    INSERT INTO t1(x,y) VALUES(19,CAST(x'13' AS TEXT));
+    INSERT INTO t1(x,y) VALUES(20,CAST(x'14' AS TEXT));
+    INSERT INTO t1(x,y) VALUES(21,CAST(x'15' AS TEXT));
+    INSERT INTO t1(x,y) VALUES(22,CAST(x'16' AS TEXT));
+    INSERT INTO t1(x,y) VALUES(23,CAST(x'17' AS TEXT));
+    INSERT INTO t1(x,y) VALUES(24,CAST(x'18' AS TEXT));
+    INSERT INTO t1(x,y) VALUES(25,CAST(x'19' AS TEXT));
+    INSERT INTO t1(x,y) VALUES(26,CAST(x'1a' AS TEXT));
+    INSERT INTO t1(x,y) VALUES(27,CAST(x'1b' AS TEXT));
+    INSERT INTO t1(x,y) VALUES(28,CAST(x'1c' AS TEXT));
+    INSERT INTO t1(x,y) VALUES(29,CAST(x'1d' AS TEXT));
+    INSERT INTO t1(x,y) VALUES(30,CAST(x'1e' AS TEXT));
+    INSERT INTO t1(x,y) VALUES(31,CAST(x'1f' AS TEXT));
+    INSERT INTO t1(x,y) VALUES(32,' ');
+    INSERT INTO t1(x,y) VALUES(33,'!');
+    INSERT INTO t1(x,y) VALUES(34,'"');
+    INSERT INTO t1(x,y) VALUES(35,'#');
+    INSERT INTO t1(x,y) VALUES(36,'$');
+    INSERT INTO t1(x,y) VALUES(37,'%');
+    INSERT INTO t1(x,y) VALUES(38,'&');
+    INSERT INTO t1(x,y) VALUES(39,'''');
+    INSERT INTO t1(x,y) VALUES(40,'(');
+    INSERT INTO t1(x,y) VALUES(41,')');
+    INSERT INTO t1(x,y) VALUES(42,'*');
+    INSERT INTO t1(x,y) VALUES(43,'+');
+    INSERT INTO t1(x,y) VALUES(44,',');
+    INSERT INTO t1(x,y) VALUES(45,'-');
+    INSERT INTO t1(x,y) VALUES(46,'.');
+    INSERT INTO t1(x,y) VALUES(47,'/');
+    INSERT INTO t1(x,y) VALUES(48,'0');
+    INSERT INTO t1(x,y) VALUES(49,'1');
+    INSERT INTO t1(x,y) VALUES(50,'2');
+    INSERT INTO t1(x,y) VALUES(51,'3');
+    INSERT INTO t1(x,y) VALUES(52,'4');
+    INSERT INTO t1(x,y) VALUES(53,'5');
+    INSERT INTO t1(x,y) VALUES(54,'6');
+    INSERT INTO t1(x,y) VALUES(55,'7');
+    INSERT INTO t1(x,y) VALUES(56,'8');
+    INSERT INTO t1(x,y) VALUES(57,'9');
+    INSERT INTO t1(x,y) VALUES(58,':');
+    INSERT INTO t1(x,y) VALUES(59,';');
+    INSERT INTO t1(x,y) VALUES(60,'<');
+    INSERT INTO t1(x,y) VALUES(61,'=');
+    INSERT INTO t1(x,y) VALUES(62,'>');
+    INSERT INTO t1(x,y) VALUES(63,'?');
+    INSERT INTO t1(x,y) VALUES(64,'@');
+    INSERT INTO t1(x,y) VALUES(65,'A');
+    INSERT INTO t1(x,y) VALUES(66,'B');
+    INSERT INTO t1(x,y) VALUES(67,'C');
+    INSERT INTO t1(x,y) VALUES(68,'D');
+    INSERT INTO t1(x,y) VALUES(69,'E');
+    INSERT INTO t1(x,y) VALUES(70,'F');
+    INSERT INTO t1(x,y) VALUES(71,'G');
+    INSERT INTO t1(x,y) VALUES(72,'H');
+    INSERT INTO t1(x,y) VALUES(73,'I');
+    INSERT INTO t1(x,y) VALUES(74,'J');
+    INSERT INTO t1(x,y) VALUES(75,'K');
+    INSERT INTO t1(x,y) VALUES(76,'L');
+    INSERT INTO t1(x,y) VALUES(77,'M');
+    INSERT INTO t1(x,y) VALUES(78,'N');
+    INSERT INTO t1(x,y) VALUES(79,'O');
+    INSERT INTO t1(x,y) VALUES(80,'P');
+    INSERT INTO t1(x,y) VALUES(81,'Q');
+    INSERT INTO t1(x,y) VALUES(82,'R');
+    INSERT INTO t1(x,y) VALUES(83,'S');
+    INSERT INTO t1(x,y) VALUES(84,'T');
+    INSERT INTO t1(x,y) VALUES(85,'U');
+    INSERT INTO t1(x,y) VALUES(86,'V');
+    INSERT INTO t1(x,y) VALUES(87,'W');
+    INSERT INTO t1(x,y) VALUES(88,'X');
+    INSERT INTO t1(x,y) VALUES(89,'Y');
+    INSERT INTO t1(x,y) VALUES(90,'Z');
+    INSERT INTO t1(x,y) VALUES(91,'[');
+    INSERT INTO t1(x,y) VALUES(92,'\');
+    INSERT INTO t1(x,y) VALUES(93,']');
+    INSERT INTO t1(x,y) VALUES(94,'^');
+    INSERT INTO t1(x,y) VALUES(95,'_');
+    INSERT INTO t1(x,y) VALUES(96,'`');
+    INSERT INTO t1(x,y) VALUES(97,'a');
+    INSERT INTO t1(x,y) VALUES(98,'b');
+    INSERT INTO t1(x,y) VALUES(99,'c');
+    INSERT INTO t1(x,y) VALUES(100,'d');
+    INSERT INTO t1(x,y) VALUES(101,'e');
+    INSERT INTO t1(x,y) VALUES(102,'f');
+    INSERT INTO t1(x,y) VALUES(103,'g');
+    INSERT INTO t1(x,y) VALUES(104,'h');
+    INSERT INTO t1(x,y) VALUES(105,'i');
+    INSERT INTO t1(x,y) VALUES(106,'j');
+    INSERT INTO t1(x,y) VALUES(107,'k');
+    INSERT INTO t1(x,y) VALUES(108,'l');
+    INSERT INTO t1(x,y) VALUES(109,'m');
+    INSERT INTO t1(x,y) VALUES(110,'n');
+    INSERT INTO t1(x,y) VALUES(111,'o');
+    INSERT INTO t1(x,y) VALUES(112,'p');
+    INSERT INTO t1(x,y) VALUES(113,'q');
+    INSERT INTO t1(x,y) VALUES(114,'r');
+    INSERT INTO t1(x,y) VALUES(115,'s');
+    INSERT INTO t1(x,y) VALUES(116,'t');
+    INSERT INTO t1(x,y) VALUES(117,'u');
+    INSERT INTO t1(x,y) VALUES(118,'v');
+    INSERT INTO t1(x,y) VALUES(119,'w');
+    INSERT INTO t1(x,y) VALUES(120,'x');
+    INSERT INTO t1(x,y) VALUES(121,'y');
+    INSERT INTO t1(x,y) VALUES(122,'z');
+    INSERT INTO t1(x,y) VALUES(123,'{');
+    INSERT INTO t1(x,y) VALUES(124,'|');
+    INSERT INTO t1(x,y) VALUES(125,'}');
+    INSERT INTO t1(x,y) VALUES(126,'~');
+    INSERT INTO t1(x,y) VALUES(127,CAST(x'7f' AS TEXT));
+    SELECT count(*) FROM t1;
+  }
+} {127}
+do_test like2-1.2 {
+  db eval {
+    CREATE TABLE t2(x INT, y COLLATE NOCASE);
+    INSERT INTO t2 SELECT * FROM t1;
+    CREATE INDEX i2 ON t2(y);
+    SELECT count(*) FROM t2;
+  }
+} {127}
+do_test like2-1.3 {
+  db eval {
+    CREATE TABLE t3(x INT, y COLLATE NOCASE);
+    INSERT INTO t3 SELECT x, 'abc' || y || 'xyz' FROM t1;
+    CREATE INDEX i3 ON t3(y);
+    SELECT count(*) FROM t2;
+  }
+} {127}
+do_test like-2.32.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE ' %'"
+} {32}
+do_test like-2.32.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE ' %'"
+} {32}
+do_test like-2.32.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abc %'"
+} {32}
+do_test like-2.33.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE '!%'"
+} {33}
+do_test like-2.33.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE '!%'"
+} {33}
+do_test like-2.33.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abc!%'"
+} {33}
+do_test like-2.34.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE '\"%'"
+} {34}
+do_test like-2.34.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE '\"%'"
+} {34}
+do_test like-2.34.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abc\"%'"
+} {34}
+do_test like-2.35.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE '#%'"
+} {35}
+do_test like-2.35.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE '#%'"
+} {35}
+do_test like-2.35.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abc#%'"
+} {35}
+do_test like-2.36.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE '\$%'"
+} {36}
+do_test like-2.36.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE '\$%'"
+} {36}
+do_test like-2.36.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abc\$%'"
+} {36}
+do_test like-2.38.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE '&%'"
+} {38}
+do_test like-2.38.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE '&%'"
+} {38}
+do_test like-2.38.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abc&%'"
+} {38}
+do_test like-2.39.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE '''%'"
+} {39}
+do_test like-2.39.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE '''%'"
+} {39}
+do_test like-2.39.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abc''%'"
+} {39}
+do_test like-2.40.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE '(%'"
+} {40}
+do_test like-2.40.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE '(%'"
+} {40}
+do_test like-2.40.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abc(%'"
+} {40}
+do_test like-2.41.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE ')%'"
+} {41}
+do_test like-2.41.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE ')%'"
+} {41}
+do_test like-2.41.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abc)%'"
+} {41}
+do_test like-2.42.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE '*%'"
+} {42}
+do_test like-2.42.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE '*%'"
+} {42}
+do_test like-2.42.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abc*%'"
+} {42}
+do_test like-2.43.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE '+%'"
+} {43}
+do_test like-2.43.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE '+%'"
+} {43}
+do_test like-2.43.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abc+%'"
+} {43}
+do_test like-2.44.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE ',%'"
+} {44}
+do_test like-2.44.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE ',%'"
+} {44}
+do_test like-2.44.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abc,%'"
+} {44}
+do_test like-2.45.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE '-%'"
+} {45}
+do_test like-2.45.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE '-%'"
+} {45}
+do_test like-2.45.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abc-%'"
+} {45}
+do_test like-2.46.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE '.%'"
+} {46}
+do_test like-2.46.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE '.%'"
+} {46}
+do_test like-2.46.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abc.%'"
+} {46}
+do_test like-2.47.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE '/%'"
+} {47}
+do_test like-2.47.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE '/%'"
+} {47}
+do_test like-2.47.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abc/%'"
+} {47}
+do_test like-2.48.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE '0%'"
+} {48}
+do_test like-2.48.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE '0%'"
+} {48}
+do_test like-2.48.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abc0%'"
+} {48}
+do_test like-2.49.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE '1%'"
+} {49}
+do_test like-2.49.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE '1%'"
+} {49}
+do_test like-2.49.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abc1%'"
+} {49}
+do_test like-2.50.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE '2%'"
+} {50}
+do_test like-2.50.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE '2%'"
+} {50}
+do_test like-2.50.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abc2%'"
+} {50}
+do_test like-2.51.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE '3%'"
+} {51}
+do_test like-2.51.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE '3%'"
+} {51}
+do_test like-2.51.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abc3%'"
+} {51}
+do_test like-2.52.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE '4%'"
+} {52}
+do_test like-2.52.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE '4%'"
+} {52}
+do_test like-2.52.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abc4%'"
+} {52}
+do_test like-2.53.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE '5%'"
+} {53}
+do_test like-2.53.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE '5%'"
+} {53}
+do_test like-2.53.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abc5%'"
+} {53}
+do_test like-2.54.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE '6%'"
+} {54}
+do_test like-2.54.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE '6%'"
+} {54}
+do_test like-2.54.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abc6%'"
+} {54}
+do_test like-2.55.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE '7%'"
+} {55}
+do_test like-2.55.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE '7%'"
+} {55}
+do_test like-2.55.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abc7%'"
+} {55}
+do_test like-2.56.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE '8%'"
+} {56}
+do_test like-2.56.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE '8%'"
+} {56}
+do_test like-2.56.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abc8%'"
+} {56}
+do_test like-2.57.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE '9%'"
+} {57}
+do_test like-2.57.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE '9%'"
+} {57}
+do_test like-2.57.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abc9%'"
+} {57}
+do_test like-2.58.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE ':%'"
+} {58}
+do_test like-2.58.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE ':%'"
+} {58}
+do_test like-2.58.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abc:%'"
+} {58}
+do_test like-2.59.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE ';%'"
+} {59}
+do_test like-2.59.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE ';%'"
+} {59}
+do_test like-2.59.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abc;%'"
+} {59}
+do_test like-2.60.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE '<%'"
+} {60}
+do_test like-2.60.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE '<%'"
+} {60}
+do_test like-2.60.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abc<%'"
+} {60}
+do_test like-2.61.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE '=%'"
+} {61}
+do_test like-2.61.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE '=%'"
+} {61}
+do_test like-2.61.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abc=%'"
+} {61}
+do_test like-2.62.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE '>%'"
+} {62}
+do_test like-2.62.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE '>%'"
+} {62}
+do_test like-2.62.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abc>%'"
+} {62}
+do_test like-2.63.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE '?%'"
+} {63}
+do_test like-2.63.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE '?%'"
+} {63}
+do_test like-2.63.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abc?%'"
+} {63}
+do_test like-2.64.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE '@%'"
+} {64}
+do_test like-2.64.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE '@%'"
+} {64}
+do_test like-2.64.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abc@%'"
+} {64}
+do_test like-2.65.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'A%'"
+} {65 97}
+do_test like-2.65.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'A%'"
+} {65 97}
+do_test like-2.65.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcA%'"
+} {65 97}
+do_test like-2.66.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'B%'"
+} {66 98}
+do_test like-2.66.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'B%'"
+} {66 98}
+do_test like-2.66.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcB%'"
+} {66 98}
+do_test like-2.67.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'C%'"
+} {67 99}
+do_test like-2.67.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'C%'"
+} {67 99}
+do_test like-2.67.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcC%'"
+} {67 99}
+do_test like-2.68.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'D%'"
+} {68 100}
+do_test like-2.68.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'D%'"
+} {68 100}
+do_test like-2.68.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcD%'"
+} {68 100}
+do_test like-2.69.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'E%'"
+} {69 101}
+do_test like-2.69.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'E%'"
+} {69 101}
+do_test like-2.69.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcE%'"
+} {69 101}
+do_test like-2.70.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'F%'"
+} {70 102}
+do_test like-2.70.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'F%'"
+} {70 102}
+do_test like-2.70.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcF%'"
+} {70 102}
+do_test like-2.71.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'G%'"
+} {71 103}
+do_test like-2.71.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'G%'"
+} {71 103}
+do_test like-2.71.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcG%'"
+} {71 103}
+do_test like-2.72.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'H%'"
+} {72 104}
+do_test like-2.72.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'H%'"
+} {72 104}
+do_test like-2.72.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcH%'"
+} {72 104}
+do_test like-2.73.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'I%'"
+} {73 105}
+do_test like-2.73.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'I%'"
+} {73 105}
+do_test like-2.73.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcI%'"
+} {73 105}
+do_test like-2.74.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'J%'"
+} {74 106}
+do_test like-2.74.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'J%'"
+} {74 106}
+do_test like-2.74.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcJ%'"
+} {74 106}
+do_test like-2.75.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'K%'"
+} {75 107}
+do_test like-2.75.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'K%'"
+} {75 107}
+do_test like-2.75.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcK%'"
+} {75 107}
+do_test like-2.76.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'L%'"
+} {76 108}
+do_test like-2.76.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'L%'"
+} {76 108}
+do_test like-2.76.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcL%'"
+} {76 108}
+do_test like-2.77.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'M%'"
+} {77 109}
+do_test like-2.77.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'M%'"
+} {77 109}
+do_test like-2.77.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcM%'"
+} {77 109}
+do_test like-2.78.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'N%'"
+} {78 110}
+do_test like-2.78.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'N%'"
+} {78 110}
+do_test like-2.78.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcN%'"
+} {78 110}
+do_test like-2.79.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'O%'"
+} {79 111}
+do_test like-2.79.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'O%'"
+} {79 111}
+do_test like-2.79.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcO%'"
+} {79 111}
+do_test like-2.80.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'P%'"
+} {80 112}
+do_test like-2.80.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'P%'"
+} {80 112}
+do_test like-2.80.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcP%'"
+} {80 112}
+do_test like-2.81.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'Q%'"
+} {81 113}
+do_test like-2.81.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'Q%'"
+} {81 113}
+do_test like-2.81.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcQ%'"
+} {81 113}
+do_test like-2.82.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'R%'"
+} {82 114}
+do_test like-2.82.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'R%'"
+} {82 114}
+do_test like-2.82.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcR%'"
+} {82 114}
+do_test like-2.83.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'S%'"
+} {83 115}
+do_test like-2.83.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'S%'"
+} {83 115}
+do_test like-2.83.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcS%'"
+} {83 115}
+do_test like-2.84.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'T%'"
+} {84 116}
+do_test like-2.84.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'T%'"
+} {84 116}
+do_test like-2.84.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcT%'"
+} {84 116}
+do_test like-2.85.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'U%'"
+} {85 117}
+do_test like-2.85.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'U%'"
+} {85 117}
+do_test like-2.85.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcU%'"
+} {85 117}
+do_test like-2.86.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'V%'"
+} {86 118}
+do_test like-2.86.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'V%'"
+} {86 118}
+do_test like-2.86.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcV%'"
+} {86 118}
+do_test like-2.87.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'W%'"
+} {87 119}
+do_test like-2.87.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'W%'"
+} {87 119}
+do_test like-2.87.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcW%'"
+} {87 119}
+do_test like-2.88.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'X%'"
+} {88 120}
+do_test like-2.88.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'X%'"
+} {88 120}
+do_test like-2.88.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcX%'"
+} {88 120}
+do_test like-2.89.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'Y%'"
+} {89 121}
+do_test like-2.89.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'Y%'"
+} {89 121}
+do_test like-2.89.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcY%'"
+} {89 121}
+do_test like-2.90.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'Z%'"
+} {90 122}
+do_test like-2.90.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'Z%'"
+} {90 122}
+do_test like-2.90.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcZ%'"
+} {90 122}
+do_test like-2.91.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE '\[%'"
+} {91}
+do_test like-2.91.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE '\[%'"
+} {91}
+do_test like-2.91.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abc\[%'"
+} {91}
+do_test like-2.92.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE '\\%'"
+} {92}
+do_test like-2.92.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE '\\%'"
+} {92}
+do_test like-2.92.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abc\\%'"
+} {92}
+do_test like-2.93.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE '\]%'"
+} {93}
+do_test like-2.93.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE '\]%'"
+} {93}
+do_test like-2.93.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abc\]%'"
+} {93}
+do_test like-2.94.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE '^%'"
+} {94}
+do_test like-2.94.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE '^%'"
+} {94}
+do_test like-2.94.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abc^%'"
+} {94}
+do_test like-2.96.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE '`%'"
+} {96}
+do_test like-2.96.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE '`%'"
+} {96}
+do_test like-2.96.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abc`%'"
+} {96}
+do_test like-2.97.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'a%'"
+} {65 97}
+do_test like-2.97.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'a%'"
+} {65 97}
+do_test like-2.97.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abca%'"
+} {65 97}
+do_test like-2.98.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'b%'"
+} {66 98}
+do_test like-2.98.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'b%'"
+} {66 98}
+do_test like-2.98.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcb%'"
+} {66 98}
+do_test like-2.99.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'c%'"
+} {67 99}
+do_test like-2.99.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'c%'"
+} {67 99}
+do_test like-2.99.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcc%'"
+} {67 99}
+do_test like-2.100.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'd%'"
+} {68 100}
+do_test like-2.100.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'd%'"
+} {68 100}
+do_test like-2.100.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcd%'"
+} {68 100}
+do_test like-2.101.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'e%'"
+} {69 101}
+do_test like-2.101.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'e%'"
+} {69 101}
+do_test like-2.101.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abce%'"
+} {69 101}
+do_test like-2.102.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'f%'"
+} {70 102}
+do_test like-2.102.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'f%'"
+} {70 102}
+do_test like-2.102.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcf%'"
+} {70 102}
+do_test like-2.103.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'g%'"
+} {71 103}
+do_test like-2.103.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'g%'"
+} {71 103}
+do_test like-2.103.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcg%'"
+} {71 103}
+do_test like-2.104.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'h%'"
+} {72 104}
+do_test like-2.104.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'h%'"
+} {72 104}
+do_test like-2.104.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abch%'"
+} {72 104}
+do_test like-2.105.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'i%'"
+} {73 105}
+do_test like-2.105.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'i%'"
+} {73 105}
+do_test like-2.105.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abci%'"
+} {73 105}
+do_test like-2.106.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'j%'"
+} {74 106}
+do_test like-2.106.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'j%'"
+} {74 106}
+do_test like-2.106.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcj%'"
+} {74 106}
+do_test like-2.107.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'k%'"
+} {75 107}
+do_test like-2.107.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'k%'"
+} {75 107}
+do_test like-2.107.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abck%'"
+} {75 107}
+do_test like-2.108.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'l%'"
+} {76 108}
+do_test like-2.108.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'l%'"
+} {76 108}
+do_test like-2.108.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcl%'"
+} {76 108}
+do_test like-2.109.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'm%'"
+} {77 109}
+do_test like-2.109.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'm%'"
+} {77 109}
+do_test like-2.109.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcm%'"
+} {77 109}
+do_test like-2.110.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'n%'"
+} {78 110}
+do_test like-2.110.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'n%'"
+} {78 110}
+do_test like-2.110.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcn%'"
+} {78 110}
+do_test like-2.111.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'o%'"
+} {79 111}
+do_test like-2.111.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'o%'"
+} {79 111}
+do_test like-2.111.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abco%'"
+} {79 111}
+do_test like-2.112.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'p%'"
+} {80 112}
+do_test like-2.112.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'p%'"
+} {80 112}
+do_test like-2.112.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcp%'"
+} {80 112}
+do_test like-2.113.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'q%'"
+} {81 113}
+do_test like-2.113.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'q%'"
+} {81 113}
+do_test like-2.113.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcq%'"
+} {81 113}
+do_test like-2.114.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'r%'"
+} {82 114}
+do_test like-2.114.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'r%'"
+} {82 114}
+do_test like-2.114.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcr%'"
+} {82 114}
+do_test like-2.115.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 's%'"
+} {83 115}
+do_test like-2.115.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 's%'"
+} {83 115}
+do_test like-2.115.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcs%'"
+} {83 115}
+do_test like-2.116.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 't%'"
+} {84 116}
+do_test like-2.116.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 't%'"
+} {84 116}
+do_test like-2.116.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abct%'"
+} {84 116}
+do_test like-2.117.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'u%'"
+} {85 117}
+do_test like-2.117.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'u%'"
+} {85 117}
+do_test like-2.117.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcu%'"
+} {85 117}
+do_test like-2.118.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'v%'"
+} {86 118}
+do_test like-2.118.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'v%'"
+} {86 118}
+do_test like-2.118.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcv%'"
+} {86 118}
+do_test like-2.119.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'w%'"
+} {87 119}
+do_test like-2.119.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'w%'"
+} {87 119}
+do_test like-2.119.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcw%'"
+} {87 119}
+do_test like-2.120.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'x%'"
+} {88 120}
+do_test like-2.120.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'x%'"
+} {88 120}
+do_test like-2.120.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcx%'"
+} {88 120}
+do_test like-2.121.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'y%'"
+} {89 121}
+do_test like-2.121.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'y%'"
+} {89 121}
+do_test like-2.121.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcy%'"
+} {89 121}
+do_test like-2.122.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE 'z%'"
+} {90 122}
+do_test like-2.122.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE 'z%'"
+} {90 122}
+do_test like-2.122.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abcz%'"
+} {90 122}
+do_test like-2.123.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE '\173%'"
+} {123}
+do_test like-2.123.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE '\173%'"
+} {123}
+do_test like-2.123.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abc\173%'"
+} {123}
+do_test like-2.124.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE '|%'"
+} {124}
+do_test like-2.124.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE '|%'"
+} {124}
+do_test like-2.124.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abc|%'"
+} {124}
+do_test like-2.125.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE '\175%'"
+} {125}
+do_test like-2.125.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE '\175%'"
+} {125}
+do_test like-2.125.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abc\175%'"
+} {125}
+do_test like-2.126.1 {
+  db eval "SELECT x FROM t1 WHERE y LIKE '~%'"
+} {126}
+do_test like-2.126.2 {
+  db eval "SELECT x FROM t2 WHERE y LIKE '~%'"
+} {126}
+do_test like-2.126.3 {
+  db eval "SELECT x FROM t3 WHERE y LIKE 'abc~%'"
+} {126}
+
+
+do_test like-3.1 {
+  db eval "SELECT '\u01C0' LIKE '%\x80'"
+} {0}
+do_test like-3.2 {
+  db eval "SELECT '\u0080' LIKE '%\x80'"
+} {1}
+
+
+finish_test
diff --git a/test/like3.test b/test/like3.test
new file mode 100644
index 0000000000000000000000000000000000000000..a93e113d62ef1332b81848b535f31173bcbd8b72
--- /dev/null
+++ b/test/like3.test
@@ -0,0 +1,278 @@
+# 2015-03-06
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the LIKE and GLOB operators and
+# in particular the optimizations that occur to help those operators
+# run faster and that those optimizations work correctly when there
+# are both strings and blobs being tested.
+#
+# Ticket 05f43be8fdda9fbd948d374319b99b054140bc36 shows that the following
+# SQL was not working correctly:
+#
+#     CREATE TABLE t1(x TEXT UNIQUE COLLATE nocase);
+#     INSERT INTO t1(x) VALUES(x'616263');
+#     SELECT 'query-1', x FROM t1 WHERE x LIKE 'a%';
+#     SELECT 'query-2', x FROM t1 WHERE +x LIKE 'a%';
+#
+# This script verifies that it works right now.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !like_match_blobs {
+  finish_test
+  return
+}
+
+do_execsql_test like3-1.1 {
+  PRAGMA encoding=UTF8;
+  CREATE TABLE t1(a,b TEXT COLLATE nocase);
+  INSERT INTO t1(a,b)
+     VALUES(1,'abc'),
+           (2,'ABX'),
+           (3,'BCD'),
+           (4,x'616263'),
+           (5,x'414258'),
+           (6,x'424344');
+  CREATE INDEX t1ba ON t1(b,a);
+
+  SELECT a, b FROM t1 WHERE b LIKE 'aB%' ORDER BY +a;
+} {1 abc 2 ABX 4 abc 5 ABX}
+do_execsql_test like3-1.2 {
+  SELECT a, b FROM t1 WHERE +b LIKE 'aB%' ORDER BY +a;
+} {1 abc 2 ABX 4 abc 5 ABX}
+
+do_execsql_test like3-2.0 {
+  CREATE TABLE t2(a, b TEXT);
+  INSERT INTO t2 SELECT a, b FROM t1;
+  CREATE INDEX t2ba ON t2(b,a);
+  SELECT a, b FROM t2 WHERE b GLOB 'ab*' ORDER BY +a;
+} {1 abc 4 abc}
+do_execsql_test like3-2.1 {
+  SELECT a, b FROM t2 WHERE +b GLOB 'ab*' ORDER BY +a;
+} {1 abc 4 abc}
+do_execsql_test like3-2.2 {
+  SELECT a, b FROM t2 WHERE b>=x'6162' AND b GLOB 'ab*'
+} {4 abc}
+do_execsql_test like3-2.3 {
+  SELECT a, b FROM t2 WHERE +b>=x'6162' AND +b GLOB 'ab*'
+} {4 abc}
+do_execsql_test like3-2.4 {
+  SELECT a, b FROM t2 WHERE b GLOB 'ab*' AND b>=x'6162'
+} {4 abc}
+do_execsql_test like3-2.5 {
+  SELECT a, b FROM t2 WHERE +b GLOB 'ab*' AND +b>=x'6162'
+} {4 abc}
+
+do_execsql_test like3-3.0 {
+  CREATE TABLE t3(x TEXT PRIMARY KEY COLLATE nocase);
+  INSERT INTO t3(x) VALUES('aaa'),('abc'),('abd'),('abe'),('acz');
+  INSERT INTO t3(x) SELECT CAST(x AS blob) FROM t3;
+  SELECT quote(x) FROM t3 WHERE x LIKE 'ab%' ORDER BY x;
+} {'abc' 'abd' 'abe' X'616263' X'616264' X'616265'}
+do_execsql_test like3-3.1 {
+  SELECT quote(x) FROM t3 WHERE x LIKE 'ab%' ORDER BY x DESC;
+} {X'616265' X'616264' X'616263' 'abe' 'abd' 'abc'}
+do_execsql_test like3-3.1ck {
+  SELECT quote(x) FROM t3 WHERE x LIKE 'ab%' ORDER BY +x DESC;
+} {X'616265' X'616264' X'616263' 'abe' 'abd' 'abc'}
+do_execsql_test like3-3.2 {
+  SELECT quote(x) FROM t3 WHERE x LIKE 'ab%' ORDER BY x ASC;
+} {'abc' 'abd' 'abe' X'616263' X'616264' X'616265'}
+do_execsql_test like3-3.2ck {
+  SELECT quote(x) FROM t3 WHERE x LIKE 'ab%' ORDER BY +x ASC;
+} {'abc' 'abd' 'abe' X'616263' X'616264' X'616265'}
+
+do_execsql_test like3-4.0 {
+  CREATE TABLE t4(x TEXT COLLATE nocase);
+  CREATE INDEX t4x ON t4(x DESC);
+  INSERT INTO t4(x) SELECT x FROM t3;
+  SELECT quote(x) FROM t4 WHERE x LIKE 'ab%' ORDER BY x;
+} {'abc' 'abd' 'abe' X'616263' X'616264' X'616265'}
+do_execsql_test like3-4.1 {
+  SELECT quote(x) FROM t4 WHERE x LIKE 'ab%' ORDER BY x DESC;
+} {X'616265' X'616264' X'616263' 'abe' 'abd' 'abc'}
+do_execsql_test like3-4.1ck {
+  SELECT quote(x) FROM t4 WHERE x LIKE 'ab%' ORDER BY +x DESC;
+} {X'616265' X'616264' X'616263' 'abe' 'abd' 'abc'}
+do_execsql_test like3-4.2 {
+  SELECT quote(x) FROM t4 WHERE x LIKE 'ab%' ORDER BY x ASC;
+} {'abc' 'abd' 'abe' X'616263' X'616264' X'616265'}
+do_execsql_test like3-4.2ck {
+  SELECT quote(x) FROM t4 WHERE x LIKE 'ab%' ORDER BY +x ASC;
+} {'abc' 'abd' 'abe' X'616263' X'616264' X'616265'}
+
+# 2018-09-10 ticket https://www.sqlite.org/src/tktview/c94369cae9b561b1f996
+# The like optimization fails for a column with numeric affinity if
+# the pattern '/%' or begins with the escape character.
+#
+do_execsql_test like3-5.100 {
+  CREATE TABLE t5a(x INT UNIQUE COLLATE nocase);
+  INSERT INTO t5a(x) VALUES('/abc'),(123),(-234);
+  SELECT x FROM t5a WHERE x LIKE '/%';
+} {/abc}
+do_eqp_test like3-5.101 {
+  SELECT x FROM t5a WHERE x LIKE '/%';
+} {
+  QUERY PLAN
+  `--SCAN t5a
+}
+do_execsql_test like3-5.110 {
+  SELECT x FROM t5a WHERE x LIKE '/a%';
+} {/abc}
+ifcapable !icu {
+do_eqp_test like3-5.111 {
+  SELECT x FROM t5a WHERE x LIKE '/a%';
+} {
+  QUERY PLAN
+  `--SEARCH t5a USING COVERING INDEX sqlite_autoindex_t5a_1 (x>? AND x<?)
+}
+}
+do_execsql_test like3-5.120 {
+  SELECT x FROM t5a WHERE x LIKE '^12%' ESCAPE '^';
+} {123}
+do_eqp_test like3-5.121 {
+  SELECT x FROM t5a WHERE x LIKE '^12%' ESCAPE '^';
+} {
+  QUERY PLAN
+  `--SCAN t5a
+}
+do_execsql_test like3-5.122 {
+  SELECT x FROM t5a WHERE x LIKE '^-2%' ESCAPE '^';
+} {-234}
+do_eqp_test like3-5.123 {
+  SELECT x FROM t5a WHERE x LIKE '^12%' ESCAPE '^';
+} {
+  QUERY PLAN
+  `--SCAN t5a
+}
+
+do_execsql_test like3-5.200 {
+  CREATE TABLE t5b(x INT UNIQUE COLLATE binary);
+  INSERT INTO t5b(x) VALUES('/abc'),(123),(-234);
+  SELECT x FROM t5b WHERE x GLOB '/*';
+} {/abc}
+do_eqp_test like3-5.201 {
+  SELECT x FROM t5b WHERE x GLOB '/*';
+} {
+  QUERY PLAN
+  `--SCAN t5b
+}
+do_execsql_test like3-5.210 {
+  SELECT x FROM t5b WHERE x GLOB '/a*';
+} {/abc}
+do_eqp_test like3-5.211 {
+  SELECT x FROM t5b WHERE x GLOB '/a*';
+} {
+  QUERY PLAN
+  `--SEARCH t5b USING COVERING INDEX sqlite_autoindex_t5b_1 (x>? AND x<?)
+}
+
+# 2019-05-01
+# another case of the above reported on the mailing list by Manuel Rigger.
+#
+do_execsql_test like3-5.300 {
+  CREATE TABLE t5c (c0 REAL);
+  CREATE INDEX t5c_0 ON t5c(c0 COLLATE NOCASE);
+  INSERT INTO t5c(rowid, c0) VALUES (99,'+/');
+  SELECT * FROM t5c WHERE (c0 LIKE '+/');
+} {+/}
+
+# 2019-05-08
+# Yet another case for the above from Manuel Rigger.
+#
+do_execsql_test like3-5.400 {
+  DROP TABLE IF EXISTS t0;
+  CREATE TABLE t0(c0 INT UNIQUE COLLATE NOCASE);
+  INSERT INTO t0(c0) VALUES ('./');
+  SELECT * FROM t0 WHERE t0.c0 LIKE './';
+} {./}
+
+# 2019-06-14
+# Ticket https://www.sqlite.org/src/info/ce8717f0885af975
+do_execsql_test like3-5.410 {
+  DROP TABLE IF EXISTS t0;
+  CREATE TABLE t0(c0 INT UNIQUE COLLATE NOCASE);
+  INSERT INTO t0(c0) VALUES ('.1%');
+  SELECT * FROM t0 WHERE t0.c0 LIKE '.1%';
+} {.1%}
+
+# 2019-09-03
+# Ticket https://www.sqlite.org/src/info/0f0428096f
+do_execsql_test like3-5.420 {
+  DROP TABLE IF EXISTS t0;
+  CREATE TABLE t0(c0 UNIQUE);
+  INSERT INTO t0(c0) VALUES(-1);
+  SELECT * FROM t0 WHERE t0.c0 GLOB '-*';
+} {-1}
+do_execsql_test like3-5.421 {
+  SELECT t0.c0 GLOB '-*' FROM t0;
+} {1}
+
+
+
+# 2019-02-27
+# Verify that the LIKE optimization works with an ESCAPE clause when
+# using PRAGMA case_sensitive_like=ON.
+#
+ifcapable !icu {
+do_execsql_test like3-6.100 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(path TEXT COLLATE nocase PRIMARY KEY,a,b,c) WITHOUT ROWID;
+}
+do_eqp_test like3-6.110 {
+  SELECT * FROM t1 WHERE path LIKE 'a%';
+} {
+  QUERY PLAN
+  `--SEARCH t1 USING PRIMARY KEY (path>? AND path<?)
+}
+do_eqp_test like3-6.120 {
+  SELECT * FROM t1 WHERE path LIKE 'a%' ESCAPE 'x';
+} {
+  QUERY PLAN
+  `--SEARCH t1 USING PRIMARY KEY (path>? AND path<?)
+}
+do_execsql_test like3-6.200 {
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t2(path TEXT,x,y,z);
+  CREATE INDEX t2path ON t2(path COLLATE nocase);
+  CREATE INDEX t2path2 ON t2(path);
+}
+do_eqp_test like3-6.210 {
+  SELECT * FROM t2 WHERE path LIKE 'a%';
+} {
+  QUERY PLAN
+  `--SEARCH t2 USING INDEX t2path (path>? AND path<?)
+}
+do_eqp_test like3-6.220 {
+  SELECT * FROM t2 WHERE path LIKE 'a%' ESCAPE '\';
+} {
+  QUERY PLAN
+  `--SEARCH t2 USING INDEX t2path (path>? AND path<?)
+}
+db eval {PRAGMA case_sensitive_like=ON}
+do_eqp_test like3-6.230 {
+  SELECT * FROM t2 WHERE path LIKE 'a%';
+} {
+  QUERY PLAN
+  `--SEARCH t2 USING INDEX t2path2 (path>? AND path<?)
+}
+do_eqp_test like3-6.240 {
+  SELECT * FROM t2 WHERE path LIKE 'a%' ESCAPE '\';
+} {
+  QUERY PLAN
+  `--SEARCH t2 USING INDEX t2path2 (path>? AND path<?)
+}
+}
+
+finish_test
diff --git a/test/limit.test b/test/limit.test
new file mode 100644
index 0000000000000000000000000000000000000000..05fbfb78015b5094c33d1194890129c60bf4e086
--- /dev/null
+++ b/test/limit.test
@@ -0,0 +1,668 @@
+# 2001 November 6
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the LIMIT ... OFFSET ... clause
+#  of SELECT statements.
+#
+# $Id: limit.test,v 1.32 2008/08/02 03:50:39 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Build some test data
+#
+execsql {
+  CREATE TABLE t1(x int, y int);
+  BEGIN;
+}
+for {set i 1} {$i<=32} {incr i} {
+  for {set j 0} {(1<<$j)<$i} {incr j} {}
+  execsql "INSERT INTO t1 VALUES([expr {32-$i}],[expr {10-$j}])"
+}
+execsql {
+  COMMIT;
+}
+
+do_test limit-1.0 {
+  execsql {SELECT count(*) FROM t1}
+} {32}
+do_test limit-1.1 {
+  execsql {SELECT count(*) FROM t1 LIMIT  5}
+} {32}
+do_test limit-1.2.1 {
+  execsql {SELECT x FROM t1 ORDER BY x LIMIT 5}
+} {0 1 2 3 4}
+do_test limit-1.2.2 {
+  execsql {SELECT x FROM t1 ORDER BY x LIMIT 5 OFFSET 2}
+} {2 3 4 5 6}
+do_test limit-1.2.3 {
+  execsql {SELECT x FROM t1 ORDER BY x+1 LIMIT 5 OFFSET -2}
+} {0 1 2 3 4}
+do_test limit-1.2.4 {
+  execsql {SELECT x FROM t1 ORDER BY x+1 LIMIT 2, -5}
+} {2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31}
+do_test limit-1.2.5 {
+  execsql {SELECT x FROM t1 ORDER BY x+1 LIMIT -2, 5}
+} {0 1 2 3 4}
+do_test limit-1.2.6 {
+  execsql {SELECT x FROM t1 ORDER BY x+1 LIMIT -2, -5}
+} {0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31}
+do_test limit-1.2.7 {
+  execsql {SELECT x FROM t1 ORDER BY x LIMIT 2, 5}
+} {2 3 4 5 6}
+do_test limit-1.3 {
+  execsql {SELECT x FROM t1 ORDER BY x LIMIT 5 OFFSET 5}
+} {5 6 7 8 9}
+do_test limit-1.4.1 {
+  execsql {SELECT x FROM t1 ORDER BY x LIMIT 50 OFFSET 30}
+} {30 31}
+do_test limit-1.4.2 {
+  execsql {SELECT x FROM t1 ORDER BY x LIMIT 30, 50}
+} {30 31}
+do_test limit-1.5 {
+  execsql {SELECT x FROM t1 ORDER BY x LIMIT 50 OFFSET 50}
+} {}
+do_test limit-1.6 {
+  execsql {SELECT * FROM t1 AS a, t1 AS b ORDER BY a.x, b.x LIMIT 5}
+} {0 5 0 5 0 5 1 5 0 5 2 5 0 5 3 5 0 5 4 5}
+do_test limit-1.7 {
+  execsql {SELECT * FROM t1 AS a, t1 AS b ORDER BY a.x, b.x LIMIT 5 OFFSET 32}
+} {1 5 0 5 1 5 1 5 1 5 2 5 1 5 3 5 1 5 4 5}
+
+ifcapable {view && subquery} {
+  do_test limit-2.1 {
+    execsql {
+      CREATE VIEW v1 AS SELECT * FROM t1 LIMIT 2;
+      SELECT count(*) FROM (SELECT * FROM v1);
+    }
+  } 2
+} ;# ifcapable view
+do_test limit-2.2 {
+  execsql {
+    CREATE TABLE t2 AS SELECT * FROM t1 LIMIT 2;
+    SELECT count(*) FROM t2;
+  }
+} 2
+ifcapable subquery {
+  do_test limit-2.3 {
+    execsql {
+      SELECT count(*) FROM t1 WHERE rowid IN (SELECT rowid FROM t1 LIMIT 2);
+    }
+  } 2
+}
+
+ifcapable subquery {
+  do_test limit-3.1 {
+    execsql {
+      SELECT z FROM (SELECT y*10+x AS z FROM t1 ORDER BY x LIMIT 10)
+      ORDER BY z LIMIT 5;
+    }
+  } {50 51 52 53 54}
+}
+
+do_test limit-4.1 {
+  ifcapable subquery { 
+    execsql {
+      BEGIN;
+      CREATE TABLE t3(x);
+      INSERT INTO t3 SELECT x FROM t1 ORDER BY x LIMIT 10 OFFSET 1;
+      INSERT INTO t3 SELECT x+(SELECT max(x) FROM t3) FROM t3;
+      INSERT INTO t3 SELECT x+(SELECT max(x) FROM t3) FROM t3;
+      INSERT INTO t3 SELECT x+(SELECT max(x) FROM t3) FROM t3;
+      INSERT INTO t3 SELECT x+(SELECT max(x) FROM t3) FROM t3;
+      INSERT INTO t3 SELECT x+(SELECT max(x) FROM t3) FROM t3;
+      INSERT INTO t3 SELECT x+(SELECT max(x) FROM t3) FROM t3;
+      INSERT INTO t3 SELECT x+(SELECT max(x) FROM t3) FROM t3;
+      INSERT INTO t3 SELECT x+(SELECT max(x) FROM t3) FROM t3;
+      INSERT INTO t3 SELECT x+(SELECT max(x) FROM t3) FROM t3;
+      INSERT INTO t3 SELECT x+(SELECT max(x) FROM t3) FROM t3;
+      END;
+      SELECT count(*) FROM t3;
+    }
+  } else {
+    execsql {
+      BEGIN;
+      CREATE TABLE t3(x);
+      INSERT INTO t3 SELECT x FROM t1 ORDER BY x LIMIT 10 OFFSET 1;
+    }
+    for {set i 0} {$i<10} {incr i} {
+      set max_x_t3 [execsql {SELECT max(x) FROM t3}]
+      execsql "INSERT INTO t3 SELECT x+$max_x_t3 FROM t3;"
+    }
+    execsql {
+      END;
+      SELECT count(*) FROM t3;
+    }
+  }
+} {10240}
+do_test limit-4.2 {
+  execsql {
+    SELECT x FROM t3 LIMIT 2 OFFSET 10000
+  }
+} {10001 10002}
+do_test limit-4.3 {
+  execsql {
+    CREATE TABLE t4 AS SELECT x,
+       'abcdefghijklmnopqrstuvwyxz ABCDEFGHIJKLMNOPQRSTUVWYXZ' || x ||
+       'abcdefghijklmnopqrstuvwyxz ABCDEFGHIJKLMNOPQRSTUVWYXZ' || x ||
+       'abcdefghijklmnopqrstuvwyxz ABCDEFGHIJKLMNOPQRSTUVWYXZ' || x ||
+       'abcdefghijklmnopqrstuvwyxz ABCDEFGHIJKLMNOPQRSTUVWYXZ' || x ||
+       'abcdefghijklmnopqrstuvwyxz ABCDEFGHIJKLMNOPQRSTUVWYXZ' || x AS y
+    FROM t3 LIMIT 1000;
+    SELECT x FROM t4 ORDER BY y DESC LIMIT 1 OFFSET 999;
+  }
+} {1000}
+
+do_test limit-5.1 {
+  execsql {
+    CREATE TABLE t5(x,y);
+    INSERT INTO t5 SELECT x-y, x+y FROM t1 WHERE x BETWEEN 10 AND 15
+        ORDER BY x LIMIT 2;
+    SELECT * FROM t5 ORDER BY x;
+  }
+} {5 15 6 16}
+do_test limit-5.2 {
+  execsql {
+    DELETE FROM t5;
+    INSERT INTO t5 SELECT x-y, x+y FROM t1 WHERE x BETWEEN 10 AND 15
+        ORDER BY x DESC LIMIT 2;
+    SELECT * FROM t5 ORDER BY x;
+  }
+} {9 19 10 20}
+do_test limit-5.3 {
+  execsql {
+    DELETE FROM t5;
+    INSERT INTO t5 SELECT x-y, x+y FROM t1 WHERE x ORDER BY x DESC LIMIT 31;
+    SELECT * FROM t5 ORDER BY x LIMIT 2;
+  }
+} {-4 6 -3 7}
+do_test limit-5.4 {
+  execsql {
+    SELECT * FROM t5 ORDER BY x DESC, y DESC LIMIT 2;
+  }
+} {21 41 21 39}
+do_test limit-5.5 {
+  execsql {
+    DELETE FROM t5;
+    INSERT INTO t5 SELECT a.x*100+b.x, a.y*100+b.y FROM t1 AS a, t1 AS b
+                   ORDER BY 1, 2 LIMIT 1000;
+    SELECT count(*), sum(x), sum(y), min(x), max(x), min(y), max(y) FROM t5;
+  }
+} {1000 1528204 593161 0 3107 505 1005}
+
+# There is some contraversy about whether LIMIT 0 should be the same as
+# no limit at all or if LIMIT 0 should result in zero output rows.
+#
+do_test limit-6.1 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t6(a);
+    INSERT INTO t6 VALUES(1);
+    INSERT INTO t6 VALUES(2);
+    INSERT INTO t6 SELECT a+2 FROM t6;
+    COMMIT;
+    SELECT * FROM t6;
+  }
+} {1 2 3 4}
+do_test limit-6.2 {
+  execsql {
+    SELECT * FROM t6 LIMIT -1 OFFSET -1;
+  }
+} {1 2 3 4}
+do_test limit-6.3 {
+  execsql {
+    SELECT * FROM t6 LIMIT 2 OFFSET -123;
+  }
+} {1 2}
+do_test limit-6.4 {
+  execsql {
+    SELECT * FROM t6 LIMIT -432 OFFSET 2;
+  }
+} {3 4}
+do_test limit-6.5 {
+  execsql {
+    SELECT * FROM t6 LIMIT -1
+  }
+} {1 2 3 4}
+do_test limit-6.6 {
+  execsql {
+    SELECT * FROM t6 LIMIT -1 OFFSET 1
+  }
+} {2 3 4}
+do_test limit-6.7 {
+  execsql {
+    SELECT * FROM t6 LIMIT 0
+  }
+} {}
+do_test limit-6.8 {
+  execsql {
+    SELECT * FROM t6 LIMIT 0 OFFSET 1
+  }
+} {}
+
+# Make sure LIMIT works well with compound SELECT statements.
+# Ticket #393
+#
+# EVIDENCE-OF: R-13512-64012 In a compound SELECT, only the last or
+# right-most simple SELECT may contain a LIMIT clause.
+#
+# EVIDENCE-OF: R-03782-50113 In a compound SELECT, the LIMIT clause
+# applies to the entire compound, not just the final SELECT.
+#
+ifcapable compound {
+do_test limit-7.1.1 {
+  catchsql {
+    SELECT x FROM t2 LIMIT 5 UNION ALL SELECT a FROM t6;
+  }
+} {1 {LIMIT clause should come after UNION ALL not before}}
+do_test limit-7.1.2 {
+  catchsql {
+    SELECT x FROM t2 LIMIT 5 UNION SELECT a FROM t6;
+  }
+} {1 {LIMIT clause should come after UNION not before}}
+do_test limit-7.1.3 {
+  catchsql {
+    SELECT x FROM t2 LIMIT 5 EXCEPT SELECT a FROM t6 LIMIT 3;
+  }
+} {1 {LIMIT clause should come after EXCEPT not before}}
+do_test limit-7.1.4 {
+  catchsql {
+    SELECT x FROM t2 LIMIT 0,5 INTERSECT SELECT a FROM t6;
+  }
+} {1 {LIMIT clause should come after INTERSECT not before}}
+do_test limit-7.2 {
+  execsql {
+    SELECT x FROM t2 UNION ALL SELECT a FROM t6 LIMIT 5;
+  }
+} {31 30 1 2 3}
+do_test limit-7.3 {
+  execsql {
+    SELECT x FROM t2 UNION ALL SELECT a FROM t6 LIMIT 3 OFFSET 1;
+  }
+} {30 1 2}
+do_test limit-7.4 {
+  execsql {
+    SELECT x FROM t2 UNION ALL SELECT a FROM t6 ORDER BY 1 LIMIT 3 OFFSET 1;
+  }
+} {2 3 4}
+do_test limit-7.5 {
+  execsql {
+    SELECT x FROM t2 UNION SELECT x+2 FROM t2 LIMIT 2 OFFSET 1;
+  }
+} {31 32}
+do_test limit-7.6 {
+  execsql {
+    SELECT x FROM t2 UNION SELECT x+2 FROM t2 ORDER BY 1 DESC LIMIT 2 OFFSET 1;
+  }
+} {32 31}
+do_test limit-7.7 {
+  execsql {
+    SELECT a+9 FROM t6 EXCEPT SELECT y FROM t2 LIMIT 2;
+  }
+} {11 12}
+do_test limit-7.8 {
+  execsql {
+    SELECT a+9 FROM t6 EXCEPT SELECT y FROM t2 ORDER BY 1 DESC LIMIT 2;
+  }
+} {13 12}
+do_test limit-7.9 {
+  execsql {
+    SELECT a+26 FROM t6 INTERSECT SELECT x FROM t2 LIMIT 1;
+  }
+} {30}
+do_test limit-7.10 {
+  execsql {
+    SELECT a+27 FROM t6 INTERSECT SELECT x FROM t2 LIMIT 1;
+  }
+} {30}
+do_test limit-7.11 {
+  execsql {
+    SELECT a+27 FROM t6 INTERSECT SELECT x FROM t2 LIMIT 1 OFFSET 1;
+  }
+} {31}
+do_test limit-7.12 {
+  execsql {
+    SELECT a+27 FROM t6 INTERSECT SELECT x FROM t2 
+       ORDER BY 1 DESC LIMIT 1 OFFSET 1;
+  }
+} {30}
+} ;# ifcapable compound
+
+# Tests for limit in conjunction with distinct.  The distinct should
+# occur before both the limit and the offset.  Ticket #749.
+#
+do_test limit-8.1 {
+  execsql {
+    SELECT DISTINCT cast(round(x/100) as integer) FROM t3 LIMIT 5;
+  }
+} {0 1 2 3 4}
+do_test limit-8.2 {
+  execsql {
+    SELECT DISTINCT cast(round(x/100) as integer) FROM t3 LIMIT 5 OFFSET 5;
+  }
+} {5 6 7 8 9}
+do_test limit-8.3 {
+  execsql {
+    SELECT DISTINCT cast(round(x/100) as integer) FROM t3 LIMIT 5 OFFSET 25;
+  }
+} {25 26 27 28 29}
+
+# Make sure limits on multiple subqueries work correctly.
+# Ticket #1035
+#
+ifcapable subquery {
+  do_test limit-9.1 {
+    execsql {
+      SELECT * FROM (SELECT * FROM t6 LIMIT 3);
+    }
+  } {1 2 3}
+}
+do_test limit-9.2.1 {
+  execsql {
+    CREATE TABLE t7 AS SELECT * FROM t6;
+  }
+} {}
+ifcapable subquery {
+  do_test limit-9.2.2 {
+    execsql {
+      SELECT * FROM (SELECT * FROM t7 LIMIT 3);
+    }
+  } {1 2 3}
+}
+ifcapable compound {
+  ifcapable subquery {
+    do_test limit-9.3 {
+      execsql {
+        SELECT * FROM (SELECT * FROM t6 LIMIT 3)
+        UNION
+        SELECT * FROM (SELECT * FROM t7 LIMIT 3)
+        ORDER BY 1
+      }
+    } {1 2 3}
+    do_test limit-9.4 {
+      execsql {
+        SELECT * FROM (SELECT * FROM t6 LIMIT 3)
+        UNION
+        SELECT * FROM (SELECT * FROM t7 LIMIT 3)
+        ORDER BY 1
+        LIMIT 2
+      }
+    } {1 2}
+  }
+  do_test limit-9.5 {
+    catchsql {
+      SELECT * FROM t6 LIMIT 3
+      UNION
+      SELECT * FROM t7 LIMIT 3
+    }
+  } {1 {LIMIT clause should come after UNION not before}}
+}
+
+# Test LIMIT and OFFSET using SQL variables.
+do_test limit-10.1 {
+  set limit 10
+  db eval {
+    SELECT x FROM t1 LIMIT :limit;
+  }
+} {31 30 29 28 27 26 25 24 23 22}
+do_test limit-10.2 {
+  set limit 5
+  set offset 5
+  db eval {
+    SELECT x FROM t1 LIMIT :limit OFFSET :offset;
+  }
+} {26 25 24 23 22}
+do_test limit-10.3 {
+  set limit -1
+  db eval {
+    SELECT x FROM t1 WHERE x<10 LIMIT :limit;
+  }
+} {9 8 7 6 5 4 3 2 1 0}
+do_test limit-10.4 {
+  set limit 1.5
+  set rc [catch {
+  db eval {
+    SELECT x FROM t1 WHERE x<10 LIMIT :limit;
+  } } msg]
+  list $rc $msg
+} {1 {datatype mismatch}}
+do_test limit-10.5 {
+  set limit "hello world"
+  set rc [catch {
+  db eval {
+    SELECT x FROM t1 WHERE x<10 LIMIT :limit;
+  } } msg]
+  list $rc $msg
+} {1 {datatype mismatch}}
+
+ifcapable subquery {
+do_test limit-11.1 {
+  db eval {
+     SELECT x FROM (SELECT x FROM t1 ORDER BY x LIMIT 0) ORDER BY x
+  }
+} {}
+} ;# ifcapable subquery
+
+# Test error processing.
+#
+do_test limit-12.1 {
+  catchsql {
+     SELECT * FROM t1 LIMIT replace(1)
+  }
+} {1 {wrong number of arguments to function replace()}}
+do_test limit-12.2 {
+  catchsql {
+     SELECT * FROM t1 LIMIT 5 OFFSET replace(1)
+  }
+} {1 {wrong number of arguments to function replace()}}
+do_test limit-12.3 {
+  catchsql {
+     SELECT * FROM t1 LIMIT x
+  }
+} {1 {no such column: x}}
+do_test limit-12.4 {
+  catchsql {
+     SELECT * FROM t1 LIMIT 1 OFFSET x
+  }
+} {1 {no such column: x}}
+
+# Ticket [db4d96798da8b]
+# LIMIT does not work with nested views containing UNION ALL 
+#
+do_test limit-13.1 {
+  db eval {
+    CREATE TABLE t13(x);
+    INSERT INTO t13 VALUES(1),(2);
+    CREATE VIEW v13a AS SELECT x AS y FROM t13;
+    CREATE VIEW v13b AS SELECT y AS z FROM v13a UNION ALL SELECT y+10 FROM v13a;
+    CREATE VIEW v13c AS SELECT z FROM v13b UNION ALL SELECT z+20 FROM v13b;
+  }
+} {}
+do_test limit-13.2 {
+  db eval {SELECT z FROM v13c LIMIT 1}
+} {1}
+do_test limit-13.3 {
+  db eval {SELECT z FROM v13c LIMIT 2}
+} {1 2}
+do_test limit-13.4 {
+  db eval {SELECT z FROM v13c LIMIT 3}
+} {1 2 11}
+do_test limit-13.5 {
+  db eval {SELECT z FROM v13c LIMIT 4}
+} {1 2 11 12}
+do_test limit-13.6 {
+  db eval {SELECT z FROM v13c LIMIT 5}
+} {1 2 11 12 21}
+do_test limit-13.7 {
+  db eval {SELECT z FROM v13c LIMIT 6}
+} {1 2 11 12 21 22}
+do_test limit-13.8 {
+  db eval {SELECT z FROM v13c LIMIT 7}
+} {1 2 11 12 21 22 31}
+do_test limit-13.9 {
+  db eval {SELECT z FROM v13c LIMIT 8}
+} {1 2 11 12 21 22 31 32}
+do_test limit-13.10 {
+  db eval {SELECT z FROM v13c LIMIT 9}
+} {1 2 11 12 21 22 31 32}
+do_test limit-13.11 {
+  db eval {SELECT z FROM v13c LIMIT 1 OFFSET 1}
+} {2}
+do_test limit-13.12 {
+  db eval {SELECT z FROM v13c LIMIT 2 OFFSET 1}
+} {2 11}
+do_test limit-13.13 {
+  db eval {SELECT z FROM v13c LIMIT 3 OFFSET 1}
+} {2 11 12}
+do_test limit-13.14 {
+  db eval {SELECT z FROM v13c LIMIT 4 OFFSET 1}
+} {2 11 12 21}
+do_test limit-13.15 {
+  db eval {SELECT z FROM v13c LIMIT 5 OFFSET 1}
+} {2 11 12 21 22}
+do_test limit-13.16 {
+  db eval {SELECT z FROM v13c LIMIT 6 OFFSET 1}
+} {2 11 12 21 22 31}
+do_test limit-13.17 {
+  db eval {SELECT z FROM v13c LIMIT 7 OFFSET 1}
+} {2 11 12 21 22 31 32}
+do_test limit-13.18 {
+  db eval {SELECT z FROM v13c LIMIT 8 OFFSET 1}
+} {2 11 12 21 22 31 32}
+do_test limit-13.21 {
+  db eval {SELECT z FROM v13c LIMIT 1 OFFSET 2}
+} {11}
+do_test limit-13.22 {
+  db eval {SELECT z FROM v13c LIMIT 2 OFFSET 2}
+} {11 12}
+do_test limit-13.23 {
+  db eval {SELECT z FROM v13c LIMIT 3 OFFSET 2}
+} {11 12 21}
+do_test limit-13.24 {
+  db eval {SELECT z FROM v13c LIMIT 4 OFFSET 2}
+} {11 12 21 22}
+do_test limit-13.25 {
+  db eval {SELECT z FROM v13c LIMIT 5 OFFSET 2}
+} {11 12 21 22 31}
+do_test limit-13.26 {
+  db eval {SELECT z FROM v13c LIMIT 6 OFFSET 2}
+} {11 12 21 22 31 32}
+do_test limit-13.27 {
+  db eval {SELECT z FROM v13c LIMIT 7 OFFSET 2}
+} {11 12 21 22 31 32}
+do_test limit-13.31 {
+  db eval {SELECT z FROM v13c LIMIT 1 OFFSET 3}
+} {12}
+do_test limit-13.32 {
+  db eval {SELECT z FROM v13c LIMIT 2 OFFSET 3}
+} {12 21}
+do_test limit-13.33 {
+  db eval {SELECT z FROM v13c LIMIT 3 OFFSET 3}
+} {12 21 22}
+do_test limit-13.34 {
+  db eval {SELECT z FROM v13c LIMIT 4 OFFSET 3}
+} {12 21 22 31}
+do_test limit-13.35 {
+  db eval {SELECT z FROM v13c LIMIT 5 OFFSET 3}
+} {12 21 22 31 32}
+do_test limit-13.36 {
+  db eval {SELECT z FROM v13c LIMIT 6 OFFSET 3}
+} {12 21 22 31 32}
+do_test limit-13.41 {
+  db eval {SELECT z FROM v13c LIMIT 1 OFFSET 4}
+} {21}
+do_test limit-13.42 {
+  db eval {SELECT z FROM v13c LIMIT 2 OFFSET 4}
+} {21 22}
+do_test limit-13.43 {
+  db eval {SELECT z FROM v13c LIMIT 3 OFFSET 4}
+} {21 22 31}
+do_test limit-13.44 {
+  db eval {SELECT z FROM v13c LIMIT 4 OFFSET 4}
+} {21 22 31 32}
+do_test limit-13.45 {
+  db eval {SELECT z FROM v13c LIMIT 5 OFFSET 4}
+} {21 22 31 32}
+do_test limit-13.51 {
+  db eval {SELECT z FROM v13c LIMIT 1 OFFSET 5}
+} {22}
+do_test limit-13.52 {
+  db eval {SELECT z FROM v13c LIMIT 2 OFFSET 5}
+} {22 31}
+do_test limit-13.53 {
+  db eval {SELECT z FROM v13c LIMIT 3 OFFSET 5}
+} {22 31 32}
+do_test limit-13.54 {
+  db eval {SELECT z FROM v13c LIMIT 4 OFFSET 5}
+} {22 31 32}
+do_test limit-13.61 {
+  db eval {SELECT z FROM v13c LIMIT 1 OFFSET 6}
+} {31}
+do_test limit-13.62 {
+  db eval {SELECT z FROM v13c LIMIT 2 OFFSET 6}
+} {31 32}
+do_test limit-13.63 {
+  db eval {SELECT z FROM v13c LIMIT 3 OFFSET 6}
+} {31 32}
+do_test limit-13.71 {
+  db eval {SELECT z FROM v13c LIMIT 1 OFFSET 7}
+} {32}
+do_test limit-13.72 {
+  db eval {SELECT z FROM v13c LIMIT 2 OFFSET 7}
+} {32}
+do_test limit-13.81 {
+  db eval {SELECT z FROM v13c LIMIT 1 OFFSET 8}
+} {}
+
+do_execsql_test limit-14.1 {
+  SELECT 123 LIMIT 1 OFFSET 0
+} {123}
+do_execsql_test limit-14.2 {
+  SELECT 123 LIMIT 1 OFFSET 1
+} {}
+do_execsql_test limit-14.3 {
+  SELECT 123 LIMIT 0 OFFSET 0
+} {}
+do_execsql_test limit-14.4 {
+  SELECT 123 LIMIT 0 OFFSET 1
+} {}
+do_execsql_test limit-14.6 {
+  SELECT 123 LIMIT -1 OFFSET 0
+} {123}
+do_execsql_test limit-14.7 {
+  SELECT 123 LIMIT -1 OFFSET 1
+} {}
+
+# 2021-03-05 dbsqlfuzz crash-d811039c9f44f2d43199d5889fcf4085ef6221b9
+#
+reset_db
+do_execsql_test limit-15.1 {
+  CREATE TABLE t1(a PRIMARY KEY, b TEXT);
+  CREATE TABLE t4(c PRIMARY KEY, d);
+  CREATE TABLE t5(e PRIMARY KEY, f);
+  CREATE TABLE t6(g, h);
+  CREATE TABLE t3_a(k, v);
+  CREATE TABLE t3_b(k, v);
+  CREATE VIEW t3 AS SELECT * FROM t3_a UNION ALL SELECT * FROM t3_b;
+  INSERT INTO t5(e,f) VALUES(500000,'orange');
+  INSERT INTO t4(c,d) VALUES(300000,'blue'),(400,'green'),(8000,'grey');
+  INSERT INTO t1(a,b) VALUES(300000,'purple');
+  INSERT INTO t3_a VALUES(300000,'yellow'),(500,'pink'),(8000,'red');
+  INSERT INTO t6 default values;
+  SELECT (
+      SELECT 100000 FROM
+          (SELECT 200000 FROM t6 WHERE a = ( SELECT 300000 FROM t3 WHERE a ) ),
+          (SELECT 400000 FROM t5 WHERE e=500000),
+          (SELECT 600000 FROM t4 WHERE c=a)
+  ) FROM t1;
+} {100000}
+
+finish_test
diff --git a/test/limit2.test b/test/limit2.test
new file mode 100644
index 0000000000000000000000000000000000000000..c03f39cd9c8720fd4e423437c33a8af432acda62
--- /dev/null
+++ b/test/limit2.test
@@ -0,0 +1,217 @@
+# 2016-05-20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the LIMIT in combination with ORDER BY
+# and in particular, the optimizations in the inner loop that cause an
+# early exit of the inner loop when the LIMIT is reached and the inner
+# loop is emitting rows in ORDER BY order.
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix limit2
+
+do_execsql_test limit2-100 {
+  CREATE TABLE t1(a,b);
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<1000)
+    INSERT INTO t1(a,b) SELECT 1, (x*17)%1000 + 1000 FROM c;
+  INSERT INTO t1(a,b) VALUES(2,2),(3,1006),(4,4),(5,9999);
+  CREATE INDEX t1ab ON t1(a,b);
+}
+set sqlite_search_count 0
+do_execsql_test limit2-100.1 {
+  SELECT a, b, '|' FROM t1 WHERE a IN (2,4,5,3,1) ORDER BY b LIMIT 5;
+} {2 2 | 4 4 | 1 1000 | 1 1001 | 1 1002 |}
+set fast_count $sqlite_search_count
+set sqlite_search_count 0
+do_execsql_test limit2-100.2 {
+  SELECT a, b, '|' FROM t1 WHERE a IN (2,4,5,3,1) ORDER BY +b LIMIT 5;
+} {2 2 | 4 4 | 1 1000 | 1 1001 | 1 1002 |}
+do_test limit2-100.3 {
+  set slow_count $sqlite_search_count
+  expr {$fast_count < 0.02*$slow_count}
+} {1}
+
+do_execsql_test limit2-110 {
+  CREATE TABLE t2(x,y);
+  INSERT INTO t2(x,y) VALUES('a',1),('a',2),('a',3),('a',4);
+  INSERT INTO t2(x,y) VALUES('b',1),('c',2),('d',3),('e',4);
+  CREATE INDEX t2xy ON t2(x,y);
+}
+set sqlite_search_count 0
+do_execsql_test limit2-110.1 {
+  SELECT a, b, '|' FROM t2, t1 WHERE t2.x='a' AND t1.a=t2.y ORDER BY t1.b LIMIT 5;
+} {2 2 | 4 4 | 1 1000 | 1 1001 | 1 1002 |}
+set fast_count $sqlite_search_count
+set sqlite_search_count 0
+do_execsql_test limit2-110.2 {
+  SELECT a, b, '|' FROM t2, t1 WHERE t2.x='a' AND t1.a=t2.y ORDER BY +t1.b LIMIT 5;
+} {2 2 | 4 4 | 1 1000 | 1 1001 | 1 1002 |}
+set slow_count $sqlite_search_count
+do_test limit2-110.3 {
+  expr {$fast_count < 0.02*$slow_count}
+} {1}
+
+do_execsql_test limit2-120 {
+  DROP INDEX t1ab;
+  CREATE INDEX t1ab ON t1(a,b DESC);
+}
+set sqlite_search_count 0
+do_execsql_test limit2-120.1 {
+  SELECT a, b, '|' FROM t1 WHERE a IN (2,4,5,3,1) ORDER BY b DESC LIMIT 5;
+} {5 9999 | 1 1999 | 1 1998 | 1 1997 | 1 1996 |}
+set fast_count $sqlite_search_count
+set sqlite_search_count 0
+do_execsql_test limit2-120.2 {
+  SELECT a, b, '|' FROM t1 WHERE a IN (2,4,5,3,1) ORDER BY +b DESC LIMIT 5;
+} {5 9999 | 1 1999 | 1 1998 | 1 1997 | 1 1996 |}
+do_test limit2-120.3 {
+  set slow_count $sqlite_search_count
+  expr {$fast_count < 0.02*$slow_count}
+} {1}
+
+# Bug report against the new ORDER BY LIMIT optimization just prior to
+# release.  (Unreleased so there is no ticket).
+#
+# Make sure the optimization is not applied if the inner loop can only
+# provide a single row of output.
+#
+do_execsql_test limit2-200 {
+  CREATE TABLE t200(a, b);
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<1000)
+    INSERT INTO t200(a,b) SELECT x, x FROM c;
+  CREATE TABLE t201(x INTEGER PRIMARY KEY, y);
+  INSERT INTO t201(x,y) VALUES(2,12345);
+
+  SELECT *, '|' FROM t200, t201 WHERE x=b ORDER BY y LIMIT 3;
+} {2 2 2 12345 |}
+do_execsql_test limit2-210 {
+  SELECT *, '|' FROM t200 LEFT JOIN t201 ON x=b ORDER BY y LIMIT 3;
+} {1 1 {} {} | 3 3 {} {} | 4 4 {} {} |}
+
+# Bug in the ORDER BY LIMIT optimization reported on 2016-09-06.
+# Ticket https://www.sqlite.org/src/info/559733b09e96
+#
+do_execsql_test limit2-300 {
+  CREATE TABLE t300(a,b,c);
+  CREATE INDEX t300x ON t300(a,b,c);
+  INSERT INTO t300 VALUES(0,1,99),(0,1,0),(0,0,0);
+  SELECT *,'.' FROM t300 WHERE a=0 AND (c=0 OR c=99) ORDER BY c DESC;
+} {0 1 99 . 0 0 0 . 0 1 0 .}
+do_execsql_test limit2-310 {
+  SELECT *,'.' FROM t300 WHERE a=0 AND (c=0 OR c=99) ORDER BY c DESC LIMIT 1;
+} {0 1 99 .}
+
+# Make sure the SELECT loop is ordered correctly for the direction of
+# the ORDER BY
+#
+do_execsql_test limit2-400 {
+  CREATE TABLE t400(a,b);
+  CREATE INDEX t400_ab ON t400(a,b);
+  INSERT INTO t400(a,b) VALUES(1,90),(1,40),(2,80),(2,30),(3,70),(3,20);
+  SELECT *,'x' FROM t400 WHERE a IN (1,2,3) ORDER BY b DESC LIMIT 3;
+  SELECT *,'y' FROM t400 WHERE a IN (1,2,3) ORDER BY +b DESC LIMIT 3;
+} {1 90 x 2 80 x 3 70 x 1 90 y 2 80 y 3 70 y}
+
+
+do_execsql_test 500 {
+  CREATE TABLE t500(i INTEGER PRIMARY KEY, j);
+  INSERT INTO t500 VALUES(1, 1);
+  INSERT INTO t500 VALUES(2, 2);
+  INSERT INTO t500 VALUES(3, 3);
+  INSERT INTO t500 VALUES(4, 0);
+  INSERT INTO t500 VALUES(5, 5);
+  SELECT j FROM t500 WHERE i IN (1,2,3,4,5) ORDER BY j DESC LIMIT 3;
+} {5 3 2}
+do_execsql_test 501 {
+  CREATE TABLE t501(i INTEGER PRIMARY KEY, j);
+  INSERT INTO t501 VALUES(1, 5);
+  INSERT INTO t501 VALUES(2, 4);
+  INSERT INTO t501 VALUES(3, 3);
+  INSERT INTO t501 VALUES(4, 6);
+  INSERT INTO t501 VALUES(5, 1);
+  SELECT j FROM t501 WHERE i IN (1,2,3,4,5) ORDER BY j LIMIT 3;
+} {1 3 4}
+do_execsql_test 502 {
+  CREATE TABLE t502(i INT PRIMARY KEY, j);
+  INSERT INTO t502 VALUES(1, 5);
+  INSERT INTO t502 VALUES(2, 4);
+  INSERT INTO t502 VALUES(3, 3);
+  INSERT INTO t502 VALUES(4, 6);
+  INSERT INTO t502 VALUES(5, 1);
+  SELECT j FROM t502 WHERE i IN (1,2,3,4,5) ORDER BY j LIMIT 3;
+} {1 3 4}
+
+# Ticket https://www.sqlite.org/src/info/123c9ba32130a6c9 2017-12-13
+# Incorrect result when an idnex is used for an ordered join.
+#
+# This test case is in the limit2.test module because the problem was first
+# exposed by check-in https://www.sqlite.org/src/info/559733b09e which 
+# implemented the ORDER BY LIMIT optimization that limit2.test strives to
+# test.
+#
+do_execsql_test 600 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a, b);  INSERT INTO t1 VALUES(1,2);
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t2(x, y);  INSERT INTO t2 VALUES(1,3);
+  CREATE INDEX t1ab ON t1(a,b);
+  SELECT y FROM t1, t2 WHERE a=x AND b<=y ORDER BY b DESC;
+} {3}
+
+# Ticket https://www.sqlite.org/src/info/9936b2fa443fec03 2018-09-08
+# Infinite loop due to the ORDER BY LIMIT optimization.
+#
+do_execsql_test 700 {
+  DROP TABLE IF EXISTS t1;
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t1(aa VARCHAR PRIMARY KEY NOT NULL,bb,cc,x VARCHAR(400));
+  INSERT INTO t1(aa,bb,cc) VALUES('maroon','meal','lecture');
+  INSERT INTO t1(aa,bb,cc) VALUES('reality','meal','catsear');
+  CREATE TABLE t2(aa VARCHAR PRIMARY KEY, dd INT DEFAULT 1, ee, x VARCHAR(100));
+  INSERT INTO t2(aa,dd,ee) VALUES('maroon',0,'travel'),('reality',0,'hour');
+  CREATE INDEX t2x1 ON t2(dd,ee);
+  ANALYZE;
+  DROP TABLE IF EXISTS sqlite_stat4;
+  DELETE FROM sqlite_stat1;
+  INSERT INTO sqlite_stat1 VALUES
+    ('t2','t2x1','3 3 3'),
+    ('t2','sqlite_autoindex_t2_1','3 1'),
+    ('t1','sqlite_autoindex_t1_1','2 1');
+  ANALYZE sqlite_master;
+  SELECT *
+    FROM t1 LEFT JOIN t2 ON t1.aa=t2.aa
+   WHERE t1.bb='meal'
+   ORDER BY t2.dd DESC
+   LIMIT 1;
+} {maroon meal lecture {} maroon 0 travel {}}
+do_execsql_test 710 {
+  DROP TABLE t1;
+  DROP TABLE t2;
+  CREATE TABLE t1(aa, bb);
+  INSERT INTO t1 VALUES('maroon','meal');
+  CREATE TABLE t2(cc, dd, ee, x VARCHAR(100));
+  INSERT INTO t2(cc,dd,ee) VALUES('maroon',1,'one');
+  INSERT INTO t2(cc,dd,ee) VALUES('maroon',2,'two');
+  INSERT INTO t2(cc,dd,ee) VALUES('maroon',0,'zero');
+  CREATE INDEX t2ddee ON t2(dd,ee);
+  CREATE INDEX t2cc ON t2(cc);
+   ANALYZE;
+  SELECT t2.cc, t2.dd, t2.ee FROM t1 CROSS JOIN t2 ON t1.aa=t2.cc
+  ORDER BY t2.dd LIMIT 1;
+} {maroon 0 zero}
+do_execsql_test 720 {
+  SELECT t2.cc, t2.dd, t2.ee FROM t1 CROSS JOIN t2 ON t1.aa=t2.cc
+  WHERE t1.bb='meal'
+  ORDER BY t2.dd LIMIT 1;
+} {maroon 0 zero}
+
+finish_test
diff --git a/test/literal.test b/test/literal.test
new file mode 100644
index 0000000000000000000000000000000000000000..5aa331e39b2f1178500ee6ef4384186f95fbd73c
--- /dev/null
+++ b/test/literal.test
@@ -0,0 +1,103 @@
+# 2024-01-19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements tests for SQL literals
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix literal
+
+proc test_literal {tn lit type val} {
+  do_execsql_test $tn.1 "SELECT typeof( $lit ), $lit" [list $type $val]
+
+  ifcapable altertable {
+    do_execsql_test $tn.2 "
+      DROP TABLE IF EXISTS x1;
+      CREATE TABLE x1(a);
+      INSERT INTO x1 VALUES(123);
+      ALTER TABLE x1 ADD COLUMN b DEFAULT $lit ;
+      SELECT typeof(b), b FROM x1;
+    " [list $type $val]
+  }
+
+  do_execsql_test $tn.3 "
+    DROP TABLE IF EXISTS x1;
+    CREATE TABLE x1(a DEFAULT $lit);
+    INSERT INTO x1 DEFAULT VALUES;
+    SELECT typeof(a), a FROM x1;
+  " [list $type $val]
+}
+
+proc test_literal_error {tn lit unrec} {
+  do_catchsql_test $tn "SELECT $lit" "1 {unrecognized token: \"$unrec\"}"
+}
+
+
+test_literal 1.0 45                  integer 45
+test_literal 1.1 0xFF                integer 255
+test_literal 1.2 0xFFFFFFFF          integer [expr 0xFFFFFFFF]
+test_literal 1.3 0x123FFFFFFFF       integer [expr 0x123FFFFFFFF]
+test_literal 1.4 -0x123FFFFFFFF      integer [expr -1 * 0x123FFFFFFFF]
+test_literal 1.5 0xFFFFFFFFFFFFFFFF  integer -1
+test_literal 1.7 0x7FFFFFFFFFFFFFFF  integer  [expr 0x7FFFFFFFFFFFFFFF]
+test_literal 1.8 -0x7FFFFFFFFFFFFFFF integer [expr -0x7FFFFFFFFFFFFFFF]
+test_literal 1.9 +0x7FFFFFFFFFFFFFFF integer [expr +0x7FFFFFFFFFFFFFFF]
+test_literal 1.10 -45                integer -45
+test_literal 1.11 '0xFF'             text 0xFF
+test_literal 1.12 '-0xFF'            text -0xFF
+test_literal 1.13 -'0xFF'            integer 0
+test_literal 1.14 -9223372036854775808 integer -9223372036854775808
+
+test_literal 2.1  1e12    real    1000000000000.0
+test_literal 2.2  1.0     real    1.0
+test_literal 2.3  1e1000  real    Inf
+test_literal 2.4  -1e1000  real   -Inf
+
+test_literal 3.1  1_000   integer 1000
+test_literal 3.2  1.1_1   real    1.11
+test_literal 3.3  1_0.1_1 real    10.11
+test_literal 3.4  1e1_000 real    Inf
+test_literal 3.5  12_3_456.7_8_9 real 123456.789
+test_literal 3.6  9_223_372_036_854_775_807 integer 9223372036854775807
+test_literal 3.7  9_223_372_036_854_775_808 real 9.22337203685478e+18
+test_literal 3.8  -9_223_372_036_854_775_808 integer -9223372036854775808
+
+foreach {tn lit unrec} {
+  0    123a456       123a456
+  1    1_            1_
+  2    1_.4          1_.4
+  3    1e_4          1e_4
+  4    1_e4          1_e4
+  5    1.4_e4        1.4_e4
+  6    1.4e+_4       1.4e
+  7    1.4e-_4       1.4e
+  8    1.4e4_        1.4e4_
+  9    1.4_e4        1.4_e4
+  10   1.4e_4        1.4e_4
+  11   12__34        12__34
+  12   1234_         1234_
+  13   12._34        12._34
+  14   12_.34        12_.34
+  15   12.34_        12.34_
+  16   1.0e1_______2 1.0e1_______2 
+} {
+  test_literal_error 4.$tn $lit $unrec
+}
+
+# dbsqlfuzz e3186a9e7826e9cd7f4085aa4452f8696485f9e1
+# See tag-20240224-a and -b
+#
+do_catchsql_test 5.1 {
+  SELECT 1 ORDER BY 2_3;
+} {1 {1st ORDER BY term out of range - should be between 1 and 1}}
+
+finish_test
diff --git a/test/literal2.tcl b/test/literal2.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..e14a03587b16bd8bef72c925247155d42a337142
--- /dev/null
+++ b/test/literal2.tcl
@@ -0,0 +1,40 @@
+# 2018 May 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname $argv0] pg_common.tcl]
+
+#=========================================================================
+
+
+start_test literal2 "2024 Jan 23"
+
+execsql_test  1.0 { SELECT 123_456 }
+errorsql_test 1.1 { SELECT 123__456 }
+
+execsql_float_test 2.1 { SELECT 1.0e1_2 }
+
+
+execsql_test  3.0.0 { SELECT 0xFF_FF }
+execsql_test  3.0.1 { SELECT 0xFF_EF }
+errorsql_test  3.0.2 { SELECT 0xFF__EF }
+# errorsql_test   3.0.3 { SELECT 0x_FFEF }
+errorsql_test  3.0.4 { SELECT 0xFFEF_ }
+
+execsql_test  3.1.0 { SELECT 0XFF_FF }
+execsql_test  3.1.1 { SELECT 0XFF_EF }
+errorsql_test  3.1.2 { SELECT 0XFF__EF }
+# errorsql_test   3.1.3 { SELECT 0X_FFEF }
+errorsql_test  3.1.4 { SELECT 0XFFEF_ }
+
+finish_test
+
+
diff --git a/test/literal2.test b/test/literal2.test
new file mode 100644
index 0000000000000000000000000000000000000000..ed177ca261f9d93a783f1674c8cc31006b1a3d93
--- /dev/null
+++ b/test/literal2.test
@@ -0,0 +1,84 @@
+# 2024 Jan 23
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+
+####################################################
+# DO NOT EDIT! THIS FILE IS AUTOMATICALLY GENERATED!
+####################################################
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix literal2
+
+do_execsql_test 1.0 {
+  SELECT 123_456
+} {123456}
+
+# PG says ERROR:  trailing junk after numeric literal at or near "123_"
+do_test 1.1 { catch { execsql {
+  SELECT 123__456
+} } } 1
+
+
+do_test 2.1 {
+  set myres {}
+  foreach r [db eval {SELECT 1.0e1_2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1000000000000.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+do_execsql_test 3.0.0 {
+  SELECT 0xFF_FF
+} {65535}
+
+do_execsql_test 3.0.1 {
+  SELECT 0xFF_EF
+} {65519}
+
+# PG says ERROR:  trailing junk after numeric literal at or near "0xFF_"
+do_test 3.0.2 { catch { execsql {
+  SELECT 0xFF__EF
+} } } 1
+
+# PG says ERROR:  trailing junk after numeric literal at or near "0xFFEF_"
+do_test 3.0.4 { catch { execsql {
+  SELECT 0xFFEF_
+} } } 1
+
+do_execsql_test 3.1.0 {
+  SELECT 0XFF_FF
+} {65535}
+
+do_execsql_test 3.1.1 {
+  SELECT 0XFF_EF
+} {65519}
+
+# PG says ERROR:  trailing junk after numeric literal at or near "0XFF_"
+do_test 3.1.2 { catch { execsql {
+  SELECT 0XFF__EF
+} } } 1
+
+# PG says ERROR:  trailing junk after numeric literal at or near "0XFFEF_"
+do_test 3.1.4 { catch { execsql {
+  SELECT 0XFFEF_
+} } } 1
+
+finish_test
diff --git a/test/loadext.test b/test/loadext.test
new file mode 100644
index 0000000000000000000000000000000000000000..6da8a528943a5a0a9c95c234ab713b83f29aef75
--- /dev/null
+++ b/test/loadext.test
@@ -0,0 +1,299 @@
+# 2006 July 14
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is extension loading.
+#
+# $Id: loadext.test,v 1.17 2009/03/20 09:09:37 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !load_ext {
+  finish_test
+  return
+}
+
+# The name of the test extension varies by operating system.
+#
+if {$::tcl_platform(platform) eq "windows"} {
+  set testextension ./testloadext.dll
+} else {
+  set testextension ./libtestloadext.so
+}
+set gcc_shared "-shared -fPIC"
+if {$::tcl_platform(os) eq "Darwin"} {
+  set gcc_shared -dynamiclib
+}
+
+# The error messages tested by this file are operating system dependent
+# (because they are returned by sqlite3OsDlError()). For now, they only
+# work with UNIX (and probably only certain kinds of UNIX).
+#
+# When a shared-object cannot be opened because it does not exist, the
+# format of the message returned is:
+#
+#      [format $dlerror_nosuchfile <shared-object-name>]
+#
+# When a shared-object cannot be opened because it consists of the 4
+# characters "blah" only, we expect the error message to be:
+#
+#      [format $dlerror_notadll <shared-object-name>]
+#
+# When a symbol cannot be found within an open shared-object, the error
+# message should be:
+#
+#      [format $dlerror_nosymbol <shared-object-name> <symbol-name>]
+#
+# The exact error messages are not important. The important bit is
+# that SQLite is correctly copying the message from xDlError().
+#
+set dlerror_nosuchfile \
+    {%s: cannot open shared object file: No such file or directory}
+set dlerror_notadll    {%s: file too short}
+set dlerror_nosymbol   {%s: undefined symbol: %s}
+
+if {$::tcl_platform(os) eq "Darwin"} {
+  set dlerror_nosuchfile {dlopen.%s, 10.: .*image.*found.*}
+  set dlerror_notadll    {dlopen.%1$s, 10.: .*image.*found.*}
+  set dlerror_nosymbol   {dlsym.XXX, %2$s.: symbol not found}
+}
+
+if {$::tcl_platform(platform) eq "windows"} {
+  set dlerror_nosuchfile {The specified module could not be found.*}
+  set dlerror_notadll    {%%1 is not a valid Win32 application.*}
+  set dlerror_nosymbol   {The specified procedure could not be found.*}
+}
+
+# Make sure the test extension actually exists.  If it does not
+# exist, try to create it.  If unable to create it, then skip this
+# test file.
+#
+if {![file exists $testextension]} {
+  set srcdir [file dir $testdir]/src
+  set testextsrc $srcdir/test_loadext.c
+
+  set cmdline [concat exec gcc $gcc_shared]
+  lappend cmdline -Wall -I$srcdir -I. -I.. -g $testextsrc -o $testextension
+  
+  if {[catch $cmdline msg]} {
+    puts "Skipping loadext tests: Test extension not built..."
+    puts $msg
+    finish_test
+    return
+  }
+}
+
+# Test that loading the extension produces the expected results - adding
+# the half() function to the specified database handle.
+#
+do_test loadext-1.1 {
+  catchsql {
+    SELECT half(1.0);
+  }
+} {1 {no such function: half}}
+do_test loadext-1.2 {
+  db enable_load_extension 1
+  sqlite3_load_extension db $testextension testloadext_init
+  catchsql {
+    SELECT half(1.0);
+  }
+} {0 0.5}
+
+# Test that a second database connection (db2) can load the extension also.
+#
+do_test loadext-1.3 {
+  sqlite3 db2 test.db
+  sqlite3_db_config db2 SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION 1
+  catchsql {
+    SELECT half(1.0);
+  } db2
+} {1 {no such function: half}}
+do_test loadext-1.4 {
+  sqlite3_load_extension db2 $testextension testloadext_init
+  catchsql {
+    SELECT half(1.0);
+  } db2
+} {0 0.5}
+
+# Close the first database connection. Then check that the second database
+# can still use the half() function without a problem.
+#
+do_test loadext-1.5 {
+  db close
+  catchsql {
+    SELECT half(1.0);
+  } db2
+} {0 0.5}
+
+db2 close
+sqlite3 db test.db
+sqlite3_enable_load_extension db 1
+
+# Try to load an extension for which the file does not exist.
+#
+do_test loadext-2.1 {
+  forcedelete ${testextension}xx
+  set rc [catch {
+    sqlite3_load_extension db "${testextension}xx"
+  } msg]
+  list $rc $msg
+} /[list 1 [format $dlerror_nosuchfile ${testextension}xx.*]]/
+
+# Try to load an extension for which the file is not a shared object
+#
+do_test loadext-2.2 {
+  set fd [open "./notasharedlib.so" w]
+  puts $fd blah
+  close $fd
+  set fd [open "./notasharedlib.dll" w]
+  puts $fd blah
+  close $fd
+  set rc [catch {
+    sqlite3_load_extension db "./notasharedlib"
+  } msg]
+  list $rc $msg
+} /[list 1 [format $dlerror_notadll ./notasharedlib.*]]/
+
+# Try to load an extension for which the file is present but the
+# entry point is not.
+#
+do_test loadext-2.3 {
+  set rc [catch {
+    sqlite3_load_extension db $testextension icecream
+  } msg]
+  if {$::tcl_platform(os) eq "Darwin"} {
+    regsub {0x[1234567890abcdefABCDEF]*} $msg XXX msg
+  }
+  list $rc $msg
+} /[list 1 [format $dlerror_nosymbol $testextension icecream]]/
+
+# Try to load an extension for which the entry point fails (returns non-zero) 
+#
+do_test loadext-2.4 {
+  set rc [catch {
+    sqlite3_load_extension db $testextension testbrokenext_init
+  } msg]
+  list $rc $msg
+} {1 {error during initialization: broken!}}
+
+############################################################################
+# Tests for the load_extension() SQL function
+#
+
+db close
+sqlite3 db test.db
+sqlite3_enable_load_extension db 1
+do_test loadext-3.1 {
+  catchsql {
+    SELECT half(5);
+  }
+} {1 {no such function: half}}
+do_test loadext-3.2 {
+  set res [catchsql {
+    SELECT load_extension($::testextension)
+  }]
+  if {$::tcl_platform(os) eq "Darwin"} {
+    regsub {0x[1234567890abcdefABCDEF]*} $res XXX res
+  }
+  set res
+} /[list 1 [format $dlerror_nosymbol $testextension sqlite3_.*_init]]/
+do_test loadext-3.3 {
+  catchsql {
+    SELECT load_extension($::testextension,'testloadext_init')
+  }
+} {0 {{}}}
+do_test loadext-3.4 {
+  catchsql {
+    SELECT half(5);
+  }
+} {0 2.5}
+do_test loadext-3.5 {
+  db eval {
+    SELECT sqlite3_status('MEMORY_USED') AS mused
+  } break
+  puts -nonewline " (memory_used=$mused) "
+  expr {$mused>0}
+} {1}
+do_test loadext-3.6 {
+  catchsql {
+    SELECT sqlite3_status('MEMORY_USED_X') AS mused
+  }
+} {1 {unknown status property: MEMORY_USED_X}}
+do_test loadext-3.7 {
+  catchsql {
+    SELECT sqlite3_status(4.53) AS mused
+  }
+} {1 {unknown status type}}
+do_test loadext-3.8 {
+  catchsql {
+    SELECT sqlite3_status(23) AS mused
+  }
+} {1 {sqlite3_status(23,...) returns 21}}
+
+# Ticket #1863
+# Make sure the extension loading mechanism will not work unless it
+# is explicitly enabled.
+#
+db close
+sqlite3 db test.db
+do_test loadext-4.1 {
+  catchsql {
+    SELECT load_extension($::testextension,'testloadext_init')
+  }
+} {1 {not authorized}}
+do_test loadext-4.2 {
+  sqlite3_enable_load_extension db 1
+  catchsql {
+    SELECT load_extension($::testextension,'testloadext_init')
+  }
+} {0 {{}}}
+
+# disable all extension loading
+do_test loadext-4.3 {
+  sqlite3_enable_load_extension db 0
+  catchsql {
+    SELECT load_extension($::testextension,'testloadext_init')
+  }
+} {1 {not authorized}}
+
+# enable C-api extension loading only.  Show that the SQL function
+# still does not work.
+do_test loadext-4.4 {
+  sqlite3_db_config db SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION 1
+  catchsql {
+    SELECT load_extension($::testextension,'testloadext_init')
+  }
+} {1 {not authorized}}
+
+source $testdir/malloc_common.tcl
+
+
+# Malloc failure in sqlite3_auto_extension and sqlite3_load_extension
+#
+do_malloc_test loadext-5 -tclprep {
+  sqlite3_reset_auto_extension
+} -tclbody {
+  if {[autoinstall_test_functions]==7} {error "out of memory"}
+}
+
+# On Windows, this malloc test must be skipped because the winDlOpen
+# function itself can fail due to "out of memory" conditions.
+#
+if {$::tcl_platform(platform) ne "windows"} {
+  do_malloc_test loadext-6 -tclbody {
+    db enable_load_extension 1
+    sqlite3_load_extension db $::testextension testloadext_init
+  }
+}
+
+autoinstall_test_functions
+
+finish_test
diff --git a/test/loadext2.test b/test/loadext2.test
new file mode 100644
index 0000000000000000000000000000000000000000..d5b6ea8d7f809e1ecd4ae8d596de34bdcc2fd334
--- /dev/null
+++ b/test/loadext2.test
@@ -0,0 +1,168 @@
+# 2006 August 23
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is automatic extension loading and the
+# sqlite3_auto_extension() API.
+#
+# $Id: loadext2.test,v 1.3 2008/03/19 16:08:54 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Only run these tests if the approriate APIs are defined
+# in the system under test.
+#
+ifcapable !load_ext {
+  finish_test
+  return
+}
+if {[info command sqlite3_auto_extension_sqr]==""} {
+  finish_test
+  return
+}
+
+
+# None of the extension are loaded by default.
+#
+do_test loadext2-1.1 {
+  catchsql {
+    SELECT sqr(2)
+  }
+} {1 {no such function: sqr}}
+do_test loadext2-1.2 {
+  catchsql {
+    SELECT cube(2)
+  }
+} {1 {no such function: cube}}
+
+# Extensions loaders not currently registered
+#
+do_test loadext2-1.2.1 {
+  sqlite3_cancel_auto_extension_sqr
+} {0}
+do_test loadext2-1.2.2 {
+  sqlite3_cancel_auto_extension_sqr
+} {0}
+do_test loadext2-1.2.3 {
+  sqlite3_cancel_auto_extension_sqr
+} {0}
+
+
+# Register auto-loaders.  Still functions do not exist.
+#
+do_test loadext2-1.3 {
+  sqlite3_auto_extension_sqr
+  sqlite3_auto_extension_cube
+  catchsql {
+    SELECT sqr(2)
+  }
+} {1 {no such function: sqr}}
+do_test loadext2-1.4 {
+  catchsql {
+    SELECT cube(2)
+  }
+} {1 {no such function: cube}}
+
+
+# Functions do exist in a new database connection
+#
+do_test loadext2-1.5 {
+  sqlite3 db test.db
+  catchsql {
+    SELECT sqr(2)
+  }
+} {0 4.0}
+do_test loadext2-1.6 {
+  catchsql {
+    SELECT cube(2)
+  }
+} {0 8.0}
+
+
+# Reset extension auto loading.  Existing extensions still exist.
+#
+do_test loadext2-1.7.1 {
+  sqlite3_cancel_auto_extension_sqr
+} {1}
+do_test loadext2-1.7.2 {
+  sqlite3_cancel_auto_extension_sqr
+} {0}
+do_test loadext2-1.7.3 {
+  sqlite3_cancel_auto_extension_cube
+} {1}
+do_test loadext2-1.7.4 {
+  sqlite3_cancel_auto_extension_cube
+} {0}
+do_test loadext2-1.7.5 {
+  catchsql {
+    SELECT sqr(2)
+  }
+} {0 4.0}
+do_test loadext2-1.8 {
+  catchsql {
+    SELECT cube(2)
+  }
+} {0 8.0}
+
+
+# Register only the sqr() function.
+#
+do_test loadext2-1.9 {
+  sqlite3_auto_extension_sqr
+  sqlite3 db test.db
+  catchsql {
+    SELECT sqr(2)
+  }
+} {0 4.0}
+do_test loadext2-1.10 {
+  catchsql {
+    SELECT cube(2)
+  }
+} {1 {no such function: cube}}
+
+# Register only the cube() function.
+#
+do_test loadext2-1.11 {
+  sqlite3_reset_auto_extension
+  sqlite3_auto_extension_cube
+  sqlite3 db test.db
+  catchsql {
+    SELECT sqr(2)
+  }
+} {1 {no such function: sqr}}
+do_test loadext2-1.12 {
+  catchsql {
+    SELECT cube(2)
+  }
+} {0 8.0}
+
+# Register a broken entry point.
+#
+do_test loadext2-1.13 {
+  sqlite3_auto_extension_broken
+  set rc [catch {sqlite3 db test.db} errmsg]
+  lappend rc $errmsg
+} {1 {automatic extension loading failed: broken autoext!}}
+do_test loadext2-1.14 {
+  catchsql {
+    SELECT sqr(2)
+  }
+} {1 {no such function: sqr}}
+do_test loadext2-1.15 {
+  catchsql {
+    SELECT cube(2)
+  }
+} {0 8.0}
+
+
+sqlite3_reset_auto_extension
+autoinstall_test_functions
+finish_test
diff --git a/test/lock.test b/test/lock.test
new file mode 100644
index 0000000000000000000000000000000000000000..cacb6d3ff1640b924a7bbc7f9275f362c95807fc
--- /dev/null
+++ b/test/lock.test
@@ -0,0 +1,453 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is database locks.
+#
+# $Id: lock.test,v 1.40 2009/06/16 17:49:36 drh Exp $
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Create an alternative connection to the database
+#
+do_test lock-1.0 {
+  # Give a complex pathname to stress the path simplification logic in
+  # the vxworks driver.
+  file mkdir tempdir/t1/t2
+  sqlite3 db2 ./tempdir/../tempdir/t1/.//t2/../../..//test.db
+  set dummy {}
+} {}
+do_test lock-1.1 {
+  execsql {SELECT name FROM sqlite_master WHERE type='table' ORDER BY name}
+} {}
+do_test lock-1.2 {
+  execsql {SELECT name FROM sqlite_master WHERE type='table' ORDER BY name} db2
+} {}
+do_test lock-1.3 {
+  execsql {CREATE TABLE t1(a int, b int)}
+  execsql {SELECT name FROM sqlite_master WHERE type='table' ORDER BY name}
+} {t1}
+do_test lock-1.5 {
+  catchsql {
+     SELECT name FROM sqlite_master WHERE type='table' ORDER BY name
+  } db2
+} {0 t1}
+
+do_test lock-1.6 {
+  execsql {INSERT INTO t1 VALUES(1,2)}
+  execsql {SELECT * FROM t1}
+} {1 2}
+# Update: The schema is now brought up to date by test lock-1.5.
+# do_test lock-1.7.1 {
+#   catchsql {SELECT * FROM t1} db2
+# } {1 {no such table: t1}}
+do_test lock-1.7.2 {
+  catchsql {SELECT * FROM t1} db2
+} {0 {1 2}}
+do_test lock-1.8 {
+  execsql {UPDATE t1 SET a=b, b=a} db2
+  execsql {SELECT * FROM t1} db2
+} {2 1}
+do_test lock-1.9 {
+  execsql {SELECT * FROM t1}
+} {2 1}
+do_test lock-1.10 {
+  execsql {BEGIN TRANSACTION}
+  execsql {UPDATE t1 SET a = 0 WHERE 0}
+  execsql {SELECT * FROM t1}
+} {2 1}
+do_test lock-1.11 {
+  catchsql {SELECT * FROM t1} db2
+} {0 {2 1}}
+do_test lock-1.12 {
+  execsql {ROLLBACK}
+  catchsql {SELECT * FROM t1}
+} {0 {2 1}}
+
+do_test lock-1.13 {
+  execsql {CREATE TABLE t2(x int, y int)}
+  execsql {INSERT INTO t2 VALUES(8,9)}
+  execsql {SELECT * FROM t2}
+} {8 9}
+do_test lock-1.14.1 {
+  catchsql {SELECT * FROM t2} db2
+} {0 {8 9}}
+do_test lock-1.14.2 {
+  catchsql {SELECT * FROM t1} db2
+} {0 {2 1}}
+do_test lock-1.15 {
+  catchsql {SELECT * FROM t2} db2
+} {0 {8 9}}
+
+do_test lock-1.16 {
+  db eval {SELECT * FROM t1} qv {
+    set x [db eval {SELECT * FROM t1}]
+  }
+  set x
+} {2 1}
+do_test lock-1.17 {
+  db eval {SELECT * FROM t1} qv {
+    set x [db eval {SELECT * FROM t2}]
+  }
+  set x
+} {8 9}
+
+# You cannot UPDATE a table from within the callback of a SELECT
+# on that same table because the SELECT has the table locked.
+#
+# 2006-08-16:  Reads no longer block writes within the same
+# database connection.
+#
+#do_test lock-1.18 {
+#  db eval {SELECT * FROM t1} qv {
+#    set r [catch {db eval {UPDATE t1 SET a=b, b=a}} msg]
+#    lappend r $msg
+#  }
+#  set r
+#} {1 {database table is locked}}
+
+# But you can UPDATE a different table from the one that is used in
+# the SELECT.
+#
+do_test lock-1.19 {
+  db eval {SELECT * FROM t1} qv {
+    set r [catch {db eval {UPDATE t2 SET x=y, y=x}} msg]
+    lappend r $msg
+  }
+  set r
+} {0 {}}
+do_test lock-1.20 {
+  execsql {SELECT * FROM t2}
+} {9 8}
+
+# It is possible to do a SELECT of the same table within the
+# callback of another SELECT on that same table because two
+# or more read-only cursors can be open at once.
+#
+do_test lock-1.21 {
+  db eval {SELECT * FROM t1} qv {
+    set r [catch {db eval {SELECT a FROM t1}} msg]
+    lappend r $msg
+  }
+  set r
+} {0 2}
+
+# Under UNIX you can do two SELECTs at once with different database
+# connections, because UNIX supports reader/writer locks.  Under windows,
+# this is not possible.
+#
+if {$::tcl_platform(platform)=="unix"} {
+  do_test lock-1.22 {
+    db eval {SELECT * FROM t1} qv {
+      set r [catch {db2 eval {SELECT a FROM t1}} msg]
+      lappend r $msg
+    }
+    set r
+  } {0 2}
+}
+integrity_check lock-1.23
+
+# If one thread has a transaction another thread cannot start
+# a transaction.  -> Not true in version 3.0.  But if one thread
+# as a RESERVED lock another thread cannot acquire one.
+#
+do_test lock-2.1 {
+  execsql {BEGIN TRANSACTION}
+  execsql {UPDATE t1 SET a = 0 WHERE 0}
+  execsql {BEGIN TRANSACTION} db2
+  set r [catch {execsql {UPDATE t1 SET a = 0 WHERE 0} db2} msg]
+  execsql {ROLLBACK} db2
+  lappend r $msg
+} {1 {database is locked}}
+
+# A thread can read when another has a RESERVED lock.
+#
+do_test lock-2.2 {
+  catchsql {SELECT * FROM t2} db2
+} {0 {9 8}}
+
+# If the other thread (the one that does not hold the transaction with
+# a RESERVED lock) tries to get a RESERVED lock, we do get a busy callback
+# as long as we were not orginally holding a READ lock.
+#
+do_test lock-2.3.1 {
+  proc callback {count} {
+    set ::callback_value $count
+    break
+  }
+  set ::callback_value {}
+  db2 busy callback
+  # db2 does not hold a lock so we should get a busy callback here
+  set r [catch {execsql {UPDATE t1 SET a=b, b=a} db2} msg]
+  lappend r $msg
+  lappend r $::callback_value
+} {1 {database is locked} 0}
+do_test lock-2.3.2 {
+  set ::callback_value {}
+  execsql {BEGIN; SELECT rowid FROM sqlite_master LIMIT 1} db2
+  # This time db2 does hold a read lock.  No busy callback this time.
+  set r [catch {execsql {UPDATE t1 SET a=b, b=a} db2} msg]
+  lappend r $msg
+  lappend r $::callback_value
+} {1 {database is locked} {}}
+catch {execsql {ROLLBACK} db2}
+do_test lock-2.4.1 {
+  proc callback {count} {
+    lappend ::callback_value $count
+    if {$count>4} break
+  }
+  set ::callback_value {}
+  db2 busy callback
+  # We get a busy callback because db2 is not holding a lock
+  set r [catch {execsql {UPDATE t1 SET a=b, b=a} db2} msg]
+  lappend r $msg
+  lappend r $::callback_value
+} {1 {database is locked} {0 1 2 3 4 5}}
+do_test lock-2.4.2 {
+  proc callback {count} {
+    lappend ::callback_value $count
+    if {$count>4} break
+  }
+  set ::callback_value {}
+  db2 busy callback
+  execsql {BEGIN; SELECT rowid FROM sqlite_master LIMIT 1} db2
+  # No busy callback this time because we are holding a lock
+  set r [catch {execsql {UPDATE t1 SET a=b, b=a} db2} msg]
+  lappend r $msg
+  lappend r $::callback_value
+} {1 {database is locked} {}}
+catch {execsql {ROLLBACK} db2}
+do_test lock-2.5 {
+  proc callback {count} {
+    lappend ::callback_value $count
+    if {$count>4} break
+  }
+  set ::callback_value {}
+  db2 busy callback
+  set r [catch {execsql {SELECT * FROM t1} db2} msg]
+  lappend r $msg
+  lappend r $::callback_value
+} {0 {2 1} {}}
+execsql {ROLLBACK}
+
+# Test the built-in busy timeout handler
+#
+# EVIDENCE-OF: R-23579-05241 PRAGMA busy_timeout; PRAGMA busy_timeout =
+# milliseconds; Query or change the setting of the busy timeout.
+#
+do_test lock-2.8 {
+  db2 timeout 400
+  execsql BEGIN
+  execsql {UPDATE t1 SET a = 0 WHERE 0}
+  catchsql {BEGIN EXCLUSIVE;} db2
+} {1 {database is locked}}
+do_test lock-2.8b {
+  db2 eval {PRAGMA busy_timeout}
+} {400}
+do_test lock-2.9 {
+  db2 timeout 0
+  execsql COMMIT
+} {}
+do_test lock-2.9b {
+  db2 eval {PRAGMA busy_timeout}
+} {0}
+integrity_check lock-2.10
+do_test lock-2.11 {
+  db2 eval {PRAGMA busy_timeout(400)}
+  execsql BEGIN
+  execsql {UPDATE t1 SET a = 0 WHERE 0}
+  catchsql {BEGIN EXCLUSIVE;} db2
+} {1 {database is locked}}
+do_test lock-2.11b {
+  db2 eval {PRAGMA busy_timeout}
+} {400}
+do_test lock-2.12 {
+  db2 eval {PRAGMA busy_timeout(0)}
+  execsql COMMIT
+} {}
+do_test lock-2.12b {
+  db2 eval {PRAGMA busy_timeout}
+} {0}
+integrity_check lock-2.13
+
+# Try to start two transactions in a row
+#
+do_test lock-3.1 {
+  execsql {BEGIN TRANSACTION}
+  set r [catch {execsql {BEGIN TRANSACTION}} msg]
+  execsql {ROLLBACK}
+  lappend r $msg
+} {1 {cannot start a transaction within a transaction}}
+integrity_check lock-3.2
+
+# Make sure the busy handler and error messages work when
+# opening a new pointer to the database while another pointer
+# has the database locked.
+#
+do_test lock-4.1 {
+  db2 close
+  catch {db eval ROLLBACK}
+  db eval BEGIN
+  db eval {UPDATE t1 SET a=0 WHERE 0}
+  sqlite3 db2 ./test.db
+  catchsql {UPDATE t1 SET a=0} db2
+} {1 {database is locked}}
+do_test lock-4.2 {
+  set ::callback_value {}
+  set rc [catch {db2 eval {UPDATE t1 SET a=0}} msg]
+  lappend rc $msg $::callback_value
+} {1 {database is locked} {}}
+do_test lock-4.3 {
+  proc callback {count} {
+    lappend ::callback_value $count
+    if {$count>4} break
+  }
+  db2 busy callback
+  set rc [catch {db2 eval {UPDATE t1 SET a=0}} msg]
+  lappend rc $msg $::callback_value
+} {1 {database is locked} {0 1 2 3 4 5}}
+execsql {ROLLBACK}
+
+# When one thread is writing, other threads cannot read.  Except if the
+# writing thread is writing to its temporary tables, the other threads
+# can still read.  -> Not so in 3.0.  One thread can read while another
+# holds a RESERVED lock.
+#
+proc tx_exec {sql} {
+  db2 eval $sql
+}
+do_test lock-5.1 {
+  execsql {
+    SELECT * FROM t1
+  }
+} {2 1}
+do_test lock-5.2 {
+  db function tx_exec tx_exec
+  catchsql {
+    INSERT INTO t1(a,b) SELECT 3, tx_exec('SELECT y FROM t2 LIMIT 1');
+  }
+} {0 {}}
+
+ifcapable tempdb {
+  do_test lock-5.3 {
+    execsql {
+      CREATE TEMP TABLE t3(x);
+      SELECT * FROM t3;
+    }
+  } {}
+  do_test lock-5.4 {
+    catchsql {
+      INSERT INTO t3 SELECT tx_exec('SELECT y FROM t2 LIMIT 1');
+    }
+  } {0 {}}
+  do_test lock-5.5 {
+    execsql {
+      SELECT * FROM t3;
+    }
+  } {8}
+  do_test lock-5.6 {
+    catchsql {
+      UPDATE t1 SET a=tx_exec('SELECT x FROM t2');
+    }
+  } {0 {}}
+  do_test lock-5.7 {
+    execsql {
+      SELECT * FROM t1;
+    }
+  } {9 1 9 8}
+  do_test lock-5.8 {
+    catchsql {
+      UPDATE t3 SET x=tx_exec('SELECT x FROM t2');
+    }
+  } {0 {}}
+  do_test lock-5.9 {
+    execsql {
+      SELECT * FROM t3;
+    }
+  } {9}
+}
+
+do_test lock-6.1 {
+  execsql {
+    CREATE TABLE t4(a PRIMARY KEY, b);
+    INSERT INTO t4 VALUES(1, 'one');
+    INSERT INTO t4 VALUES(2, 'two');
+    INSERT INTO t4 VALUES(3, 'three');
+  }
+
+  set STMT [sqlite3_prepare $DB "SELECT * FROM sqlite_master" -1 TAIL]
+  sqlite3_step $STMT
+
+  execsql { DELETE FROM t4 }
+  execsql { SELECT * FROM sqlite_master } db2
+  execsql { SELECT * FROM t4 } db2
+} {}
+
+do_test lock-6.2 {
+  execsql { 
+    BEGIN;
+    INSERT INTO t4 VALUES(1, 'one');
+    INSERT INTO t4 VALUES(2, 'two');
+    INSERT INTO t4 VALUES(3, 'three');
+    COMMIT;
+  }
+
+  execsql { SELECT * FROM t4 } db2
+} {1 one 2 two 3 three}
+
+do_test lock-6.3 {
+  execsql { SELECT a FROM t4 ORDER BY a } db2
+} {1 2 3}
+
+do_test lock-6.4 {
+  execsql { PRAGMA integrity_check } db2
+} {ok}
+
+do_test lock-6.5 {
+  sqlite3_finalize $STMT
+} {SQLITE_OK}
+
+# At one point the following set of conditions would cause SQLite to 
+# retain a RESERVED or EXCLUSIVE lock after the transaction was committed:
+# 
+#   * The journal-mode is set to something other than 'delete', and
+#   * there exists one or more active read-only statements, and
+#   * a transaction that modified zero database pages is committed.
+# 
+#set temp_status unlocked
+#if {$TEMP_STORE>=2} {set temp_status unknown}
+set temp_status unknown
+do_test lock-7.1 {
+  set STMT [sqlite3_prepare $DB "SELECT * FROM sqlite_master" -1 TAIL]
+  sqlite3_step $STMT
+} {SQLITE_ROW}
+do_test lock-7.2 {
+  execsql { PRAGMA lock_status }
+} [list main shared temp $temp_status]
+do_test lock-7.3 {
+  execsql {
+    PRAGMA journal_mode = truncate;
+    BEGIN;
+    UPDATE t4 SET a = 10 WHERE 0;
+    COMMIT;
+  }
+  execsql { PRAGMA lock_status }
+} [list main shared temp $temp_status]
+do_test lock-7.4 {
+  sqlite3_finalize $STMT
+} {SQLITE_OK}
+
+do_test lock-999.1 {
+  rename db2 {}
+} {}
+
+finish_test
diff --git a/test/lock2.test b/test/lock2.test
new file mode 100644
index 0000000000000000000000000000000000000000..ea2e5573a9c101879d57144e9ad224149c6074d5
--- /dev/null
+++ b/test/lock2.test
@@ -0,0 +1,111 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is database locks between competing processes.
+#
+# $Id: lock2.test,v 1.11 2009/05/01 10:55:34 danielk1977 Exp $
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+
+
+# Simple locking test case:
+#
+# lock2-1.1: Connect a second process to the database.
+# lock2-1.2: Establish a RESERVED lock with this process.
+# lock2-1.3: Get a SHARED lock with the second process.
+# lock2-1.4: Try for a RESERVED lock with process 2. This fails.
+# lock2-1.5: Try to upgrade the first process to EXCLUSIVE, this fails so
+#            it gets PENDING.
+# lock2-1.6: Release the SHARED lock held by the second process. 
+# lock2-1.7: Attempt to reaquire a SHARED lock with the second process.
+#            this fails due to the PENDING lock.
+# lock2-1.8: Ensure the first process can now upgrade to EXCLUSIVE.
+#
+do_test lock2-1.1 {
+  set ::tf1 [launch_testfixture]
+  testfixture $::tf1 {
+    sqlite3 db test.db -key xyzzy
+    db eval {select * from sqlite_master}
+  }
+} {}
+do_test lock2-1.1.1 {
+  execsql {pragma lock_status}
+} {main unlocked temp closed}
+sqlite3_soft_heap_limit 0
+do_test lock2-1.2 {
+  execsql {
+    BEGIN;
+    CREATE TABLE abc(a, b, c);
+  }
+} {}
+do_test lock2-1.3 {
+  testfixture $::tf1 {
+    db eval {
+      BEGIN;
+      SELECT * FROM sqlite_master;
+    }
+  }
+} {}
+do_test lock2-1.4 {
+  testfixture $::tf1 {
+    catch { db eval { CREATE TABLE def(d, e, f) } } msg
+    set msg
+  }
+} {database is locked}
+do_test lock2-1.5 {
+  catchsql {
+    COMMIT;
+  }
+} {1 {database is locked}}
+do_test lock2-1.6 {
+  testfixture $::tf1 {
+    db eval {
+      SELECT * FROM sqlite_master;
+      COMMIT;
+    }
+  }
+} {}
+do_test lock2-1.7 {
+  testfixture $::tf1 {
+    catch { db eval {
+      BEGIN;
+      SELECT * FROM sqlite_master;
+    } } msg 
+    set msg
+  }
+} {database is locked}
+do_test lock2-1.8 {
+  catchsql {
+    COMMIT;
+  }
+} {0 {}}
+do_test lock2-1.9 {
+  execsql {
+    SELECT * FROM sqlite_master;
+  }
+} "table abc abc [expr $AUTOVACUUM?3:2] {CREATE TABLE abc(a, b, c)}"
+catch flush_async_queue
+do_test lock2-1.10 {
+  testfixture $::tf1 {
+    db eval {
+      SELECT * FROM sqlite_master;
+    }
+  }
+} "table abc abc [expr $AUTOVACUUM?3:2] {CREATE TABLE abc(a, b, c)}"
+
+catch {testfixture $::tf1 {db close}}
+catch {close $::tf1}
+sqlite3_soft_heap_limit $cmdlinearg(soft-heap-limit)
+
+finish_test
diff --git a/test/lock3.test b/test/lock3.test
new file mode 100644
index 0000000000000000000000000000000000000000..f771a193705a03f06d315565a38cc9b9ca25fd81
--- /dev/null
+++ b/test/lock3.test
@@ -0,0 +1,79 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is database locks and the operation of the
+# DEFERRED, IMMEDIATE, and EXCLUSIVE keywords as modifiers to the
+# BEGIN command.
+#
+# $Id: lock3.test,v 1.4 2009/03/28 15:04:24 drh Exp $
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Establish two connections to the same database.  Put some
+# sample data into the database.
+#
+do_test lock3-1.1 {
+  file mkdir tempdir/t1/t2/t3
+  sqlite3 db2 ./tempdir/t1//t2/./t3//./../..//./../../tempdir/..//test.db//
+  execsql {
+    CREATE TABLE t1(a);
+    INSERT INTO t1 VALUES(1);
+  }
+  execsql {
+    SELECT * FROM t1
+  } db2
+} 1
+
+# Get a deferred lock on the database using one connection.  The
+# other connection should still be able to write.
+#
+do_test lock3-2.1 {
+  execsql {BEGIN DEFERRED TRANSACTION}
+  execsql {INSERT INTO t1 VALUES(2)} db2
+  execsql {END TRANSACTION}
+  execsql {SELECT * FROM t1}
+} {1 2}
+
+# Get an immediate lock on the database using one connection.  The
+# other connection should be able to read the database but not write
+# it.
+#
+do_test lock3-3.1 {
+  execsql {BEGIN IMMEDIATE TRANSACTION}
+  catchsql {SELECT * FROM t1} db2
+} {0 {1 2}}
+do_test lock3-3.2 {
+  catchsql {INSERT INTO t1 VALUES(3)} db2
+} {1 {database is locked}}
+do_test lock3-3.3 {
+  execsql {END TRANSACTION}
+} {}
+
+
+# Get an exclusive lock on the database using one connection.  The
+# other connection should be unable to read or write the database.
+#
+do_test lock3-4.1 {
+  execsql {BEGIN EXCLUSIVE TRANSACTION}
+  catchsql {SELECT * FROM t1} db2
+} {1 {database is locked}}
+do_test lock3-4.2 {
+  catchsql {INSERT INTO t1 VALUES(3)} db2
+} {1 {database is locked}}
+do_test lock3-4.3 {
+  execsql {END TRANSACTION}
+} {}
+
+catch {db2 close}
+
+finish_test
diff --git a/test/lock4.test b/test/lock4.test
new file mode 100644
index 0000000000000000000000000000000000000000..58dd206997be56c7b67270ed98389596eed49496
--- /dev/null
+++ b/test/lock4.test
@@ -0,0 +1,126 @@
+# 2007 April 6
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is database locks.
+#
+# $Id: lock4.test,v 1.10 2009/05/06 00:52:41 drh Exp $
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+if {[atomic_batch_write test.db]} {
+  # This test uses two processes, one of which blocks until the other
+  # creates a *-journal file. Which doesn't work if atomic writes are
+  # available.
+  finish_test
+  return
+}
+
+do_not_use_codec
+
+# Initialize the test.db database so that it is non-empty
+#
+do_test lock4-1.1 {
+  db eval {
+     PRAGMA auto_vacuum=OFF;
+     CREATE TABLE t1(x);
+  }
+  forcedelete test2.db test2.db-journal
+  sqlite3 db2 test2.db
+  db2 eval {
+     PRAGMA auto_vacuum=OFF;
+     CREATE TABLE t2(x)
+  }
+  db2 close
+  list [file size test.db] [file size test2.db]
+} {2048 2048}
+
+# Create a script to drive a separate process that will
+#
+#     1.  Create a second database test2.db
+#     2.  Get an exclusive lock on test2.db
+#     3.  Add an entry to test.db in table t1, waiting as necessary.
+#     4.  Commit the change to test2.db.
+#
+# Meanwhile, this process will:
+# 
+#     A.  Get an exclusive lock on test.db
+#     B.  Attempt to read from test2.db but get an SQLITE_BUSY error.
+#     C.  Commit the changes to test.db thus alloing the other process
+#         to continue.
+#
+do_test lock4-1.2 {
+ 
+  # Create a script for the second process to run.
+  #
+  set out [open test2-script.tcl w]
+  puts $out "sqlite3_test_control_pending_byte [set sqlite_pending_byte]"
+  puts $out {
+     sqlite3 db2 test2.db
+     db2 eval {
+        BEGIN;
+        INSERT INTO t2 VALUES(2);
+     }
+     sqlite3 db test.db
+     db timeout 1000000
+     db eval {
+        INSERT INTO t1 VALUES(2);
+     }
+     db close
+     db2 eval COMMIT
+     exit
+  }
+  close $out
+
+  # Begin a transaction on test.db.
+  db eval {
+     BEGIN EXCLUSIVE;
+     INSERT INTO t1 VALUES(1);
+  }
+
+  # Kick off the second process.
+  exec [info nameofexec] ./test2-script.tcl &
+
+  # Wait until the second process has started its transaction on test2.db.
+  while {![file exists test2.db-journal]} {
+    after 10
+  }
+
+  # Try to write to test2.db. We are locked out.
+  sqlite3 db2 test2.db
+  catchsql {
+    INSERT INTO t2 VALUES(1)
+  } db2
+} {1 {database is locked}}
+do_test lock4-1.3 {
+  db eval {
+     COMMIT;
+  }
+  while {[file exists test2.db-journal]} {
+    after 10
+  }
+  # The other process has committed its transaction on test2.db by 
+  # deleting the journal file. But it might retain the lock for a 
+  # fraction longer 
+  #
+  after 25
+  db2 eval {
+     SELECT * FROM t2
+  }
+} {2}
+
+    
+do_test lock4-999.1 {
+  rename db2 {}
+} {}
+
+finish_test
diff --git a/test/lock5.test b/test/lock5.test
new file mode 100644
index 0000000000000000000000000000000000000000..8ebc2770185eebd6baa5f7d0566fd26fb2c3a168
--- /dev/null
+++ b/test/lock5.test
@@ -0,0 +1,319 @@
+# 2008 June 28
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is database locks.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix lock5
+
+# This file is only run if using the unix backend compiled with the
+# SQLITE_ENABLE_LOCKING_STYLE macro.
+db close
+if {[catch {sqlite3 db test.db -vfs unix-none} msg]} {
+  finish_test
+  return
+}
+db close
+forcedelete test.db.lock
+
+ifcapable lock_proxy_pragmas {
+  set ::using_proxy 0
+  foreach {name value} [array get env SQLITE_FORCE_PROXY_LOCKING] {
+    set ::using_proxy $value
+  }
+  # Disable the proxy locking for these tests
+  set env(SQLITE_FORCE_PROXY_LOCKING) "0"
+}
+
+
+do_test lock5-dotfile.1 {
+  sqlite3 db test.db -vfs unix-dotfile
+  execsql {
+    BEGIN;
+    CREATE TABLE t1(a, b);
+  }
+} {}
+
+do_test lock5-dotfile.2 {
+  file exists test.db.lock
+} {1}
+
+do_test lock5-dotfile.3 {
+  execsql COMMIT
+  file exists test.db.lock
+} {0}
+
+do_test lock5-dotfile.4 {
+  sqlite3 db2 test.db -vfs unix-dotfile
+  execsql {
+    INSERT INTO t1 VALUES('a', 'b');
+    SELECT * FROM t1;
+  } db2
+} {a b}
+
+do_test lock5-dotfile.5 {
+  execsql {
+    BEGIN;
+    SELECT * FROM t1;
+  } db2
+} {a b}
+
+do_test lock5-dotfile.6 {
+  file exists test.db.lock
+} {1}
+
+do_test lock5-dotfile.7 {
+  catchsql { SELECT * FROM t1; }
+} {1 {database is locked}}
+
+do_test lock5-dotfile.8 {
+  execsql {
+    SELECT * FROM t1;
+    ROLLBACK;
+  } db2
+} {a b}
+
+do_test lock5-dotfile.9 {
+  catchsql { SELECT * FROM t1; }
+} {0 {a b}}
+
+do_test lock5-dotfile.10 {
+  file exists test.db.lock
+} {0}
+
+do_test lock5-dotfile.X {
+  db2 close
+  execsql {BEGIN EXCLUSIVE}
+  db close
+  file exists test.db.lock
+} {0}
+
+#####################################################################
+
+forcedelete test.db
+if {0==[catch {sqlite3 db test.db -vfs unix-flock} msg]} {
+
+do_test lock5-flock.1 {
+  sqlite3 db test.db -vfs unix-flock
+  execsql {
+    CREATE TABLE t1(a, b);
+    BEGIN;
+    INSERT INTO t1 VALUES(1, 2);
+  }
+} {}
+
+# Make sure we are not accidentally using the dotfile locking scheme.
+do_test lock5-flock.2 {
+  file exists test.db.lock
+} {0}
+
+do_test lock5-flock.3 {
+  catch { sqlite3 db2 test.db -vfs unix-flock }
+  catchsql { SELECT * FROM t1 } db2
+} {1 {database is locked}}
+
+do_test lock5-flock.4 {
+  execsql COMMIT
+  catchsql { SELECT * FROM t1 } db2
+} {0 {1 2}}
+
+do_test lock5-flock.5 {
+  execsql BEGIN
+  catchsql { SELECT * FROM t1 } db2
+} {0 {1 2}}
+
+do_test lock5-flock.6 {
+  execsql {SELECT * FROM t1}
+  catchsql { SELECT * FROM t1 } db2
+} {1 {database is locked}}
+
+do_test lock5-flock.7 {
+  db close
+  catchsql { SELECT * FROM t1 } db2
+} {0 {1 2}}
+
+do_test lock5-flock.8 {
+  db2 close
+} {}
+
+do_test lock5-flock.9 {
+  sqlite3 db test.db -vfs unix-flock
+  execsql {
+    SELECT * FROM t1
+  }
+} {1 2}
+
+do_test lock5-flock.10 {
+  sqlite3 db2 test.db -vfs unix-flock
+  execsql {
+    SELECT * FROM t1
+  } db2
+} {1 2}
+
+do_test lock5-flock.10 {
+  execsql {
+    PRAGMA cache_size = 1;
+    BEGIN;
+      WITH s(i) AS (
+        SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<10000
+      )
+      INSERT INTO t1 SELECT i, i+1 FROM s;
+  }
+
+  catchsql {
+    SELECT * FROM t1
+  } db2
+} {1 {database is locked}}
+
+if {[permutation]!="inmemory_journal"} {
+  do_test lock5-flock.11 {
+    forcecopy test.db test.db2
+    forcecopy test.db-journal test.db2-journal
+    db2 close
+    sqlite3 db2 test.db2 -vfs unix-flock
+    catchsql {
+      SELECT * FROM t1
+    } db2
+  } {0 {1 2}}
+  
+  do_test lock5-flock.12 {
+    file exists test.db2-journal
+  } 0
+}
+
+db close
+db2 close
+
+}
+
+#####################################################################
+
+reset_db
+
+do_test lock5-none.1 {
+  sqlite3 db test.db -vfs unix-none
+  sqlite3 db2 test.db -vfs unix-none
+  execsql { PRAGMA mmap_size = 0 } db2
+  execsql {
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, 2);
+    BEGIN;
+    INSERT INTO t1 VALUES(3, 4);
+  }
+} {}
+do_test lock5-none.2 {
+  execsql { SELECT * FROM t1 }
+} {1 2 3 4}
+do_test lock5-none.3 {
+  execsql { SELECT * FROM t1; } db2
+} {1 2}
+do_test lock5-none.4 {
+  execsql { 
+    BEGIN;
+    SELECT * FROM t1;
+  } db2
+} {1 2}
+do_test lock5-none.5 {
+  execsql COMMIT
+  execsql {SELECT * FROM t1} db2
+} {1 2}
+
+ifcapable memorymanage {
+  if {[permutation]!="memsubsys1" && [permutation]!="memsubsys2"} { 
+    do_test lock5-none.6 {
+      sqlite3_release_memory 1000000
+      execsql {SELECT * FROM t1} db2
+    } {1 2 3 4}
+  }
+}
+
+do_test lock5-none.X {
+  db close
+  db2 close
+} {}
+
+ifcapable lock_proxy_pragmas {
+  set env(SQLITE_FORCE_PROXY_LOCKING) $::using_proxy
+}
+
+#####################################################################
+reset_db
+if {[permutation]!="inmemory_journal"} {
+  
+  # 1. Create a large database using the unix-dotfile VFS
+  # 2. Write a large transaction to the db, so that the cache spills, but do
+  #    not commit it.
+  # 3. Make a copy of the database files on disk.
+  # 4. Try to read from the copy using unix-dotfile VFS. This fails because
+  #    the dotfile still exists, so SQLite thinks the database is locked.
+  # 5. Remove the dotfile.
+  # 6. Try to read the db again. This time, the old transaction is rolled
+  #    back and the read permitted.
+  #
+  do_test 2.dotfile.1 {
+    sqlite3 db test.db -vfs unix-dotfile
+    execsql {
+      PRAGMA cache_size = 10;
+      CREATE TABLE t1(x, y, z);
+      CREATE INDEX t1x ON t1(x);
+      WITH s(i) AS (
+        SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<1000
+      )
+      INSERT INTO t1 SELECT hex(randomblob(20)), hex(randomblob(500)), i FROM s;
+    }
+  } {}
+  
+  do_execsql_test 2.dotfile.2 {
+    BEGIN;
+      UPDATE t1 SET z=z+1, x=hex(randomblob(20));
+  }
+  
+  do_test 2.dotfile.3 {
+    list                            \
+      [file exists test.db]         \
+      [file exists test.db-journal] \
+      [file exists test.db.lock]
+  } {1 1 1}
+  
+  do_test 2.dotfile.4 {
+    forcecopy test.db test.db2
+    forcecopy test.db-journal test.db2-journal
+    file mkdir test.db2.lock
+  
+    sqlite3 db2 test.db2 -vfs unix-dotfile
+    catchsql {
+      SELECT count(*) FROM t1;
+    } db2
+  } {1 {database is locked}}
+  
+  do_test 2.dotfile.5 {
+    file delete test.db2.lock
+    execsql {
+      PRAGMA integrity_check
+    } db2
+  } {ok}
+  
+  db2 close
+  
+  do_test 2.dotfile.6 {
+    forcecopy test.db test.db2
+    forcecopy test.db-journal test.db2-journal
+  
+    sqlite3 db2 file:test.db2?nolock=1 -vfs unix-dotfile -uri 1
+    catchsql {
+      SELECT count(*) FROM t1;
+    } db2
+  } {0 1000}
+}
+
+finish_test
diff --git a/test/lock6.test b/test/lock6.test
new file mode 100644
index 0000000000000000000000000000000000000000..b47d18f7a9acfb294a93d0dd5b3232d8c851894e
--- /dev/null
+++ b/test/lock6.test
@@ -0,0 +1,167 @@
+# 2008 October 6
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is database locks.
+#
+# $Id: lock6.test,v 1.3 2009/02/05 16:31:46 drh Exp $
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Launch another testfixture process to be controlled by this one. A
+# channel name is returned that may be passed as the first argument to proc
+# 'testfixture' to execute a command. The child testfixture process is shut
+# down by closing the channel.
+proc launch_testfixture {} {
+  set prg [info nameofexec]
+  if {$prg eq ""} {
+    set prg [file join . testfixture]
+  }
+  set chan [open "|$prg tf_main2.tcl" r+]
+  fconfigure $chan -buffering line
+  return $chan
+}
+
+# Execute a command in a child testfixture process, connected by two-way
+# channel $chan. Return the result of the command, or an error message.
+proc testfixture {chan cmd} {
+  puts $chan $cmd
+  puts $chan OVER
+  set r ""
+  while { 1 } {
+    set line [gets $chan]
+    if { $line == "OVER" } { 
+      return $r
+    }
+    append r $line
+  }
+}
+
+# Write the main loop for the child testfixture processes into file
+# tf_main2.tcl. The parent (this script) interacts with the child processes
+# via a two way pipe. The parent writes a script to the stdin of the child
+# process, followed by the word "OVER" on a line of its own. The child
+# process evaluates the script and writes the results to stdout, followed
+# by an "OVER" of its own.
+set f [open tf_main2.tcl w]
+puts $f {
+  set l [open log w]
+  set script ""
+  while {![eof stdin]} {
+    flush stdout
+    set line [gets stdin]
+    puts $l "READ $line"
+    if { $line == "OVER" } {
+      catch {eval $script} result
+      puts $result
+      puts $l "WRITE $result"
+      puts OVER
+      puts $l "WRITE OVER"
+      flush stdout
+      set script ""
+    } else {
+      append script $line
+      append script " ; "
+    }
+  }
+  close $l
+}
+close $f
+
+
+ifcapable lock_proxy_pragmas&&prefer_proxy_locking {
+  set sqlite_hostid_num 1
+
+  set using_proxy 0
+  foreach {name value} [array get env SQLITE_FORCE_PROXY_LOCKING] {
+    set using_proxy $value
+  }
+
+  # Test the lock_proxy_file pragmas.
+  #
+  set env(SQLITE_FORCE_PROXY_LOCKING) "1"
+
+  do_test lock6-1.1 {
+    set ::tf1 [launch_testfixture]
+    testfixture $::tf1 "sqlite3_test_control_pending_byte $::sqlite_pending_byte"
+    testfixture $::tf1 {
+      set sqlite_hostid_num 2    
+      sqlite3 db test.db -key xyzzy
+      set lockpath [db eval {
+        PRAGMA lock_proxy_file=":auto:";
+        select * from sqlite_master;
+        PRAGMA lock_proxy_file;
+      }]
+      string match "*test.db:auto:" $lockpath
+    }
+  } {1}
+  
+  set sqlite_hostid_num 3   
+  do_test lock6-1.2 {
+    execsql {pragma lock_status}
+  } {main unlocked temp closed}
+
+  sqlite3_soft_heap_limit 0
+  do_test lock6-1.3 {
+    list [catch {
+      sqlite3 db test.db
+      execsql { select * from sqlite_master } 
+    } msg] $msg
+  } {1 {database is locked}}
+
+  do_test lock6-1.4 {
+    set lockpath [execsql {
+      PRAGMA lock_proxy_file=":auto:";
+      PRAGMA lock_proxy_file;
+    } db]
+    set lockpath
+  } {{:auto: (not held)}}
+
+  do_test lock6-1.4.1 {
+    catchsql {
+      PRAGMA lock_proxy_file="notmine";
+      select * from sqlite_master;
+    } db
+  } {1 {database is locked}}
+
+  do_test lock6-1.4.2 {
+    execsql {
+      PRAGMA lock_proxy_file;
+    } db
+  } {notmine}
+    
+  do_test lock6-1.5 {
+    testfixture $::tf1 {
+      db eval {
+        BEGIN;
+        SELECT * FROM sqlite_master;
+      }
+    }
+  } {}
+
+  catch {testfixture $::tf1 {db close}}
+
+  do_test lock6-1.6 {
+    execsql {
+      PRAGMA lock_proxy_file="mine";
+      select * from sqlite_master;
+    } db
+  } {}
+  
+  catch {close $::tf1}
+  set env(SQLITE_FORCE_PROXY_LOCKING) $using_proxy
+  set sqlite_hostid_num 0
+
+  sqlite3_soft_heap_limit $cmdlinearg(soft-heap-limit)
+}
+      
+finish_test
diff --git a/test/lock7.test b/test/lock7.test
new file mode 100644
index 0000000000000000000000000000000000000000..02f2c6c6305079d7f1e5dcc17a7c4e4a1ce108f4
--- /dev/null
+++ b/test/lock7.test
@@ -0,0 +1,60 @@
+# 2009 August 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Check that reading the database schema from within an active transaction
+# does not establish a SHARED lock on the database file if one is not
+# already held (or, more accurately, that the SHARED lock is released after
+# reading the database schema).
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test lock7-1.1 {
+  execsql { CREATE TABLE t1(a, b) }
+  db close
+
+  sqlite3 db1 test.db
+  sqlite3 db2 test.db
+
+  db1 eval {BEGIN}
+  db2 eval {BEGIN}
+} {}
+
+do_test lock7-1.2 {
+  execsql { PRAGMA lock_status } db1
+} {main unlocked temp closed}
+do_test lock7-1.3 {
+  execsql { PRAGMA lock_status } db2
+} {main unlocked temp closed}
+
+do_test lock7-1.4 {
+  catchsql { INSERT INTO t1 VALUES(1, 1) } db1
+} {0 {}}
+do_test lock7-1.5 {
+  catchsql { INSERT INTO t1 VALUES(2, 2) } db2
+} {1 {database is locked}}
+
+do_test lock7-1.6 {
+  execsql { PRAGMA lock_status } db1
+} {main reserved temp closed}
+do_test lock7-1.7 {
+  execsql { PRAGMA lock_status } db2
+} {main unlocked temp closed}
+
+do_test lock7-1.8 {
+  execsql { COMMIT } db1
+} {}
+
+db1 close
+db2 close
+
+finish_test
diff --git a/test/lock_common.tcl b/test/lock_common.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..3e1821bab0b5d4de72ff8f75afbc3313104ce482
--- /dev/null
+++ b/test/lock_common.tcl
@@ -0,0 +1,206 @@
+# 2010 April 14
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file contains code used by several different test scripts. The
+# code in this file allows testfixture to control another process (or
+# processes) to test locking.
+#
+
+proc do_multiclient_test {varname script} {
+
+  foreach {tn code} [list 1 {
+    if {[info exists ::G(valgrind)]} { db close ; continue }
+    set ::code2_chan [launch_testfixture]
+    set ::code3_chan [launch_testfixture]
+    proc code2 {tcl} { testfixture $::code2_chan $tcl }
+    proc code3 {tcl} { testfixture $::code3_chan $tcl }
+  } 2 {
+    proc code2 {tcl} { uplevel #0 $tcl }
+    proc code3 {tcl} { uplevel #0 $tcl }
+  }] {
+    # Do not run multi-process tests with the unix-excl VFS.
+    #
+    if {$tn==1 && [permutation]=="unix-excl"} continue
+
+    faultsim_delete_and_reopen
+
+    proc code1 {tcl} { uplevel #0 $tcl }
+  
+    # Open connections [db2] and [db3]. Depending on which iteration this
+    # is, the connections may be created in this interpreter, or in 
+    # interpreters running in other OS processes. As such, the [db2] and [db3]
+    # commands should only be accessed within [code2] and [code3] blocks,
+    # respectively.
+    #
+    eval $code
+    code2 { sqlite3 db2 test.db }
+    code3 { sqlite3 db3 test.db }
+    
+    # Shorthand commands. Execute SQL using database connection [db2] or 
+    # [db3]. Return the results.
+    #
+    proc sql1 {sql} { db eval $sql }
+    proc sql2 {sql} { code2 [list db2 eval $sql] }
+    proc sql3 {sql} { code3 [list db3 eval $sql] }
+  
+    proc csql1 {sql} { list [catch { sql1 $sql } msg] $msg }
+    proc csql2 {sql} { list [catch { sql2 $sql } msg] $msg }
+    proc csql3 {sql} { list [catch { sql3 $sql } msg] $msg }
+
+    uplevel set $varname $tn
+    uplevel $script
+
+    catch { code2 { db2 close } }
+    catch { code3 { db3 close } }
+    catch { close $::code2_chan }
+    catch { close $::code3_chan }
+    catch { db close }
+  }
+}
+
+# Launch another testfixture process to be controlled by this one. A
+# channel name is returned that may be passed as the first argument to proc
+# 'testfixture' to execute a command. The child testfixture process is shut
+# down by closing the channel.
+proc launch_testfixture {{prg ""}} {
+  write_main_loop
+  if {$prg eq ""} { set prg [info nameofexec] }
+  if {$prg eq ""} { set prg testfixture }
+  if {[file tail $prg]==$prg} { set prg [file join . $prg] }
+  set chan [open "|$prg tf_main.tcl" r+]
+  fconfigure $chan -buffering line
+  set rc [catch { 
+    testfixture $chan "sqlite3_test_control_pending_byte $::sqlite_pending_byte"
+  }]
+  if {$rc} {
+    testfixture $chan "set ::sqlite_pending_byte $::sqlite_pending_byte"
+  }
+  return $chan
+}
+
+# Execute a command in a child testfixture process, connected by two-way
+# channel $chan. Return the result of the command, or an error message.
+#
+proc testfixture {chan cmd args} {
+
+  if {[llength $args] == 0} {
+    fconfigure $chan -blocking 1
+    puts $chan $cmd
+    puts $chan OVER
+
+    set r ""
+    while { 1 } {
+      set line [gets $chan]
+      if { $line == "OVER" } { 
+        set res [lindex $r 1]
+        if { [lindex $r 0] } { error $res }
+        return $res
+      }
+      if {[eof $chan]} {
+        return "ERROR: Child process hung up"
+      }
+      append r $line
+    }
+    return $r
+  } else {
+    set ::tfnb($chan) ""
+    fconfigure $chan -blocking 0 -buffering none
+    puts $chan $cmd
+    puts $chan OVER
+    fileevent $chan readable [list testfixture_script_cb $chan [lindex $args 0]]
+    return ""
+  }
+}
+
+proc testfixture_script_cb {chan script} {
+  if {[eof $chan]} {
+    append ::tfnb($chan) "ERROR: Child process hung up"
+    set line "OVER"
+  } else {
+    set line [gets $chan]
+  }
+
+  if { $line == "OVER" } {
+    uplevel #0 $script [list [lindex $::tfnb($chan) 1]]
+    unset ::tfnb($chan)
+    fileevent $chan readable ""
+  } else {
+    append ::tfnb($chan) $line
+  }
+}
+
+proc testfixture_nb_cb {varname chan} {
+  if {[eof $chan]} {
+    append ::tfnb($chan) "ERROR: Child process hung up"
+    set line "OVER"
+  } else {
+    set line [gets $chan]
+  }
+
+  if { $line == "OVER" } {
+    set $varname [lindex $::tfnb($chan) 1]
+    unset ::tfnb($chan)
+    close $chan
+  } else {
+    append ::tfnb($chan) $line
+  }
+}
+
+proc testfixture_nb {varname cmd} {
+  set chan [launch_testfixture]
+  set ::tfnb($chan) ""
+  fconfigure $chan -blocking 0 -buffering none
+  puts $chan $cmd
+  puts $chan OVER
+  fileevent $chan readable [list testfixture_nb_cb $varname $chan]
+  return ""
+}
+
+# Write the main loop for the child testfixture processes into file
+# tf_main.tcl. The parent (this script) interacts with the child processes
+# via a two way pipe. The parent writes a script to the stdin of the child
+# process, followed by the word "OVER" on a line of its own. The child
+# process evaluates the script and writes the results to stdout, followed
+# by an "OVER" of its own.
+#
+set main_loop_written 0
+proc write_main_loop {} {
+  if {$::main_loop_written} return
+  set wrapper ""
+  if {[sqlite3 -has-codec] && [info exists ::do_not_use_codec]==0} {
+    set wrapper "
+      rename sqlite3 sqlite_orig
+      proc sqlite3 {args} {[info body sqlite3]}
+    "
+  }
+
+  set fd [open tf_main.tcl w]
+  puts $fd [string map [list %WRAPPER% $wrapper] {
+    %WRAPPER%
+    set script ""
+    while {![eof stdin]} {
+      flush stdout
+      set line [gets stdin]
+      if { $line == "OVER" } {
+        set rc [catch {eval $script} result]
+        puts [list $rc $result]
+        puts OVER
+        flush stdout
+        set script ""
+      } else {
+        append script $line
+        append script "\n"
+      }
+    }
+  }]
+  close $fd
+  set main_loop_written 1
+}
+
diff --git a/test/lookaside.test b/test/lookaside.test
new file mode 100644
index 0000000000000000000000000000000000000000..e1d91c8543f570481d94bdc644bed80b9eb702f0
--- /dev/null
+++ b/test/lookaside.test
@@ -0,0 +1,136 @@
+# 2008 August 01
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests for the lookaside memory allocator.
+#
+# $Id: lookaside.test,v 1.10 2009/04/09 01:23:49 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !lookaside {
+  finish_test
+  return
+}
+
+# The tests in this file configure the lookaside allocator after a 
+# connection is opened. This will not work if there is any "presql"
+# configured (SQL run within the [sqlite3] wrapper in tester.tcl).
+if {[info exists ::G(perm:dbconfig)] && $::G(perm:dbconfig)!=""} {
+  finish_test
+  return
+}
+
+test_set_config_pagecache 0 0
+
+catch {db close}
+sqlite3_shutdown
+sqlite3_initialize
+autoinstall_test_functions
+
+sqlite3 db test.db
+db cache size 4
+
+# Make sure sqlite3_db_config() and sqlite3_db_status are working.
+#
+do_test lookaside-1.1 {
+  catch {sqlite3_config_error db}
+} {0}
+
+do_test lookaside-1.2 {
+  sqlite3_db_config_lookaside db 1 18 18
+} {0}
+do_test lookaside-1.3.1 {
+  sqlite3_db_status db DBSTATUS_LOOKASIDE_USED 0
+} {0 0 0}
+do_test lookaside-1.3.2 {
+  sqlite3_db_status db DBSTATUS_LOOKASIDE_HIT 0
+} {0 0 0}
+do_test lookaside-1.3.3 {
+  sqlite3_db_status db DBSTATUS_LOOKASIDE_MISS_SIZE 0
+} {0 0 0}
+do_test lookaside-1.3.4 {
+  sqlite3_db_status db DBSTATUS_LOOKASIDE_MISS_FULL 0
+} {0 0 0}
+
+do_test lookaside-1.4 {
+  db eval {CREATE TABLE t1(w,x,y,z);}
+  foreach {x y z} [sqlite3_db_status db DBSTATUS_LOOKASIDE_USED 0] break
+  set p [lindex [sqlite3_db_status db DBSTATUS_LOOKASIDE_HIT 0] 2]
+  set q [lindex [sqlite3_db_status db DBSTATUS_LOOKASIDE_MISS_SIZE 0] 2]
+  set r [lindex [sqlite3_db_status db DBSTATUS_LOOKASIDE_MISS_FULL 0] 2]
+  expr {$x==0 && $y<$z && $z==18 && $p>0 && $q>0 && $r>0}
+} {0}
+do_test lookaside-1.5 {
+  foreach {x y z} [sqlite3_db_status db DBSTATUS_LOOKASIDE_USED 1] break
+  expr {$x==0 && $y<$z && $z==18}
+} {0}
+do_test lookaside-1.6 {
+  foreach {x y z} [sqlite3_db_status db DBSTATUS_LOOKASIDE_USED 0] break
+  expr {$x==0 && $y==$z && $y<18}
+} {1}
+do_test lookaside-1.7 {
+  db cache flush
+  foreach {x y z} [sqlite3_db_status db DBSTATUS_LOOKASIDE_USED 0] break
+  expr {$x==0 && $y==0 && $z<18}
+} {1}
+do_test lookaside-1.8 {
+  db cache flush
+  foreach {x y z} [sqlite3_db_status db DBSTATUS_LOOKASIDE_USED 1] break
+  expr {$x==0 && $y==0 && $z<18}
+} {1}
+do_test lookaside-1.9 {
+  db cache flush
+  sqlite3_db_status db DBSTATUS_LOOKASIDE_USED 0
+} {0 0 0}
+
+do_test lookaside-2.1 {
+  sqlite3_db_config_lookaside db 0 100 1000
+} {0}
+do_test lookaside-2.2 {
+  db eval {CREATE TABLE t2(x);}
+  foreach {x y z} [sqlite3_db_status db DBSTATUS_LOOKASIDE_USED 0] break
+  expr {$x==0 && $y<$z && $z>10 && $z<100}
+} {1}
+do_test lookaside-2.3 {
+  db eval {SELECT 1}
+  sqlite3_db_config_lookaside db 0 50 50
+} {5}  ;# SQLITE_BUSY
+do_test lookaside-2.4 {
+  db cache flush
+  sqlite3_db_config_lookaside db 0 50 50
+} {0}  ;# SQLITE_OK
+do_test lookaside-2.5 {
+  sqlite3_db_config_lookaside db 0 -1 50
+} {0}  ;# SQLITE_OK
+do_test lookaside-2.6 {
+  sqlite3_db_config_lookaside db 0 50 -1
+} {0}  ;# SQLITE_OK
+
+# sqlite3_db_status() with an invalid verb returns an error.
+#
+do_test lookaside-3.1 {
+  sqlite3_db_status db 99999 0
+} {1 0 0}
+
+# Test that an invalid verb on sqlite3_config() is detected and
+# reported as an error.
+#
+do_test lookaside-4.1 {
+  db close
+  sqlite3_shutdown
+  catch sqlite3_config_error
+} {0}
+sqlite3_initialize
+autoinstall_test_functions
+
+test_restore_config_pagecache
+finish_test
diff --git a/test/main.test b/test/main.test
new file mode 100644
index 0000000000000000000000000000000000000000..556a8bdfccbf5e1bce2d711a8a86f0b65f35944e
--- /dev/null
+++ b/test/main.test
@@ -0,0 +1,481 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is exercising the code in main.c.
+#
+# $Id: main.test,v 1.32 2009/04/28 04:51:29 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Only do the next group of tests if the sqlite3_complete API is available
+#
+ifcapable {complete} {
+
+# Tests of the sqlite_complete() function.
+#
+do_test main-1.1 {
+  db complete {This is a test}
+} {0}
+do_test main-1.2.0 {
+  db complete {
+  }
+} {0}
+do_test main-1.2.1 {
+  db complete {}
+} {0}
+do_test main-1.3.0 {
+  db complete {
+     -- a comment ;
+  }
+} {0}
+do_test main-1.3.1 {
+  db complete {
+     /* a comment ; */
+  }
+} {0}
+do_test main-1.4.0 {
+  db complete {
+     -- a comment ;
+     ;
+  }
+} {1}
+do_test main-1.4.1 {
+  db complete {
+     /* a comment ; */
+     ;
+  }
+} {1}
+do_test main-1.4.2 {
+  db complete {
+     /* a comment ; */ ;
+  }
+} {1}
+do_test main-1.5 {
+  db complete {DROP TABLE 'xyz;}
+} {0}
+do_test main-1.6 {
+  db complete {DROP TABLE 'xyz';}
+} {1}
+do_test main-1.7 {
+  db complete {DROP TABLE "xyz;}
+} {0}
+do_test main-1.8 {
+  db complete {DROP TABLE "xyz';}
+} {0}
+do_test main-1.9 {
+  db complete {DROP TABLE "xyz";}
+} {1}
+do_test main-1.10 {
+  db complete {DROP TABLE xyz; hi}
+} {0}
+do_test main-1.11 {
+  db complete {DROP TABLE xyz; }
+} {1}
+do_test main-1.12 {
+  db complete {DROP TABLE xyz; -- hi }
+} {1}
+do_test main-1.13 {
+  db complete {DROP TABLE xyz; -- hi
+  }
+} {1}
+do_test main-1.14 {
+  db complete {SELECT a-b FROM t1; }
+} {1}
+do_test main-1.15 {
+  db complete {SELECT a/e FROM t1 }
+} {0}
+do_test main-1.16 {
+  db complete {
+    CREATE TABLE abc(x,y);
+  }
+} {1}
+ifcapable {trigger} {
+  do_test main-1.17 {
+    db complete {
+      CREATE TRIGGER xyz AFTER DELETE abc BEGIN UPDATE pqr;
+    }
+  } {0}
+  do_test main-1.17.2 {
+    db complete {
+      EXPLAIN CREATE TRIGGER xyz AFTER DELETE abc BEGIN UPDATE pqr;
+    }
+  } {0}
+  do_test main-1.17.3 {
+    db complete {
+      EXPLAIN QUERY PLAN CREATE TRIGGER xyz AFTER DELETE abc BEGIN UPDATE pqr;
+    }
+  } {0}
+  do_test main-1.18 {
+    db complete {
+      CREATE TRIGGER xyz AFTER DELETE abc BEGIN UPDATE pqr; END;
+    }
+  } {1}
+  do_test main-1.19 {
+    db complete {
+      CREATE TRIGGER xyz AFTER DELETE abc BEGIN
+         UPDATE pqr;
+         unknown command;
+    }
+  } {0}
+  do_test main-1.20 {
+    db complete {
+      CREATE TRIGGER xyz AFTER DELETE backend BEGIN
+         UPDATE pqr;
+    }
+  } {0}
+  do_test main-1.21 {
+    db complete {
+      CREATE TRIGGER xyz AFTER DELETE end BEGIN
+         SELECT a, b FROM end;
+    }
+  } {0}
+  do_test main-1.22 {
+    db complete {
+      CREATE TRIGGER xyz AFTER DELETE end BEGIN
+         SELECT a, b FROM end;
+      END;
+    }
+  } {1}
+  do_test main-1.23 {
+    db complete {
+      CREATE TRIGGER xyz AFTER DELETE end BEGIN
+         SELECT a, b FROM end;
+      END;
+      SELECT a, b FROM end;
+    }
+  } {1}
+  do_test main-1.24 {
+    db complete {
+      CREATE TRIGGER xyz AFTER DELETE [;end;] BEGIN
+         UPDATE pqr;
+    }
+  } {0}
+  do_test main-1.25 {
+    db complete {
+      CREATE TRIGGER xyz AFTER DELETE backend BEGIN
+         UPDATE cantor SET a=[;end;];;;
+    }
+  } {0}
+  do_test main-1.26 {
+    db complete {
+      CREATE -- a comment
+      TRIGGER exy AFTER DELETE backend BEGIN
+         UPDATE pqr SET a=5;
+    }
+  } {0}
+  do_test main-1.27.1 {
+    db complete {
+      CREATE -- a comment
+      TRIGGERX tangentxx AFTER DELETE backend BEGIN
+         UPDATE pqr SET a=5;
+    }
+  } {1}
+  do_test main-1.27.2 {
+    db complete {
+      CREATE/**/TRIGGER tiger00 AFTER DELETE backend BEGIN
+         UPDATE pqr SET a=5;
+    }
+  } {0}
+  ifcapable {explain} {
+    do_test main-1.27.3 {
+      db complete {
+        /* */ EXPLAIN -- A comment
+        CREATE/**/TRIGGER ezxyz12 AFTER DELETE backend BEGIN
+           UPDATE pqr SET a=5;
+      }
+    } {0}
+  }
+  do_test main-1.27.4 {
+    db complete {
+      BOGUS token
+      CREATE  TRIGGER xyz AFTER DELETE backend BEGIN
+         UPDATE pqr SET a=5;
+    }
+  } {1}
+  ifcapable {explain} {
+    do_test main-1.27.5 {
+      db complete {
+        EXPLAIN 
+        CREATE TEMP TRIGGER xyz AFTER DELETE backend BEGIN
+           UPDATE pqr SET a=5;
+      }
+    } {0}
+  }
+  do_test main-1.28 {
+    db complete {
+      CREATE TEMPORARY TRIGGER xyz AFTER DELETE backend BEGIN
+         UPDATE pqr SET a=5;
+    }
+  } {0}
+  do_test main-1.29 {
+    db complete {
+      CREATE TRIGGER xyz AFTER DELETE backend BEGIN
+         UPDATE pqr SET a=5;
+         EXPLAIN select * from xyz;
+    }
+  } {0}
+
+} ;# end ifcapable {complete}
+
+}
+do_test main-1.30 {
+  db complete {
+     CREATE TABLE /* In comment ; */
+  }
+} {0}
+do_test main-1.31 {
+  db complete {
+     CREATE TABLE /* In comment ; */ hi;
+  }
+} {1}
+do_test main-1.31 {
+  db complete {
+     CREATE TABLE /* In comment ; */;
+  }
+} {1}
+do_test main-1.32 {
+  db complete {
+     stuff;
+     /*
+       CREATE TABLE
+       multiple lines
+       of text
+     */
+  }
+} {1}
+do_test main-1.33 {
+  db complete {
+     /*
+       CREATE TABLE
+       multiple lines
+       of text;
+  }
+} {0}
+do_test main-1.34 {
+  db complete {
+     /*
+       CREATE TABLE
+       multiple lines "*/
+       of text;
+  }
+} {1}
+do_test main-1.35 {
+  db complete {hi /**/ there;}
+} {1}
+do_test main-1.36 {
+  db complete {hi there/***/;}
+} {1}
+do_test main-1.37 {
+  db complete {hi there/**}
+} {0}
+do_test main-1.38 {
+  db complete {hi [there}
+} {0}
+
+ifcapable {trigger} {
+  # Characters less than \040 can never be part of an identifier.
+  # Characters greater than \u177 are always identifier characters.
+  do_test main-1.100 {
+    db complete "create \037\036\035\034trigger\001\002;"
+  } {1}
+  do_test main-1.101 {
+    db complete "create trigger\200;"
+  } {1}
+  do_test main-1.102 {
+    db complete "create \200trigger;"
+  } {1}
+}
+
+
+# Try to open a database with a corrupt database file.
+#
+if {[permutation] == ""} {
+  do_test main-2.0 {
+    catch {db close}
+    forcedelete test.db
+    set fd [open test.db w]
+    puts $fd hi!
+    close $fd
+    set v [catch {sqlite3 db test.db} msg]
+    if {$v} {lappend v $msg} {lappend v {}}
+  } {0 {}}
+}
+
+# Here are some tests for tokenize.c.  
+#
+do_test main-3.1 {
+  catch {db close}
+  foreach f [glob -nocomplain testdb/*] {forcedelete $f}
+  forcedelete testdb
+  sqlite3 db testdb
+  set v [catch {execsql {SELECT * from T1 where x!!5}} msg]
+  lappend v $msg
+} {1 {unrecognized token: "!"}}
+do_test main-3.2 {
+  catch {db close}
+  foreach f [glob -nocomplain testdb/*] {forcedelete $f}
+  forcedelete testdb
+  sqlite3 db testdb
+  set v [catch {execsql {SELECT * from T1 where ^x}} msg]
+  lappend v $msg
+} {1 {unrecognized token: "^"}}
+do_test main-3.2.2 {
+  catchsql {select 'abc}
+} {1 {unrecognized token: "'abc"}}
+do_test main-3.2.3 {
+  catchsql {select "abc}
+} {1 {unrecognized token: ""abc"}}
+do_test main-3.2.4 {
+  catchsql {select [abc}
+} {1 {unrecognized token: "[abc"}}
+do_test main-3.2.5 {
+  catchsql {select x'4869}
+} {1 {unrecognized token: "x'4869"}}
+do_test main-3.2.6 {
+  catchsql {select x'4869'}
+} {0 Hi}
+do_test main-3.2.7 {
+  catchsql {select x'48695'}
+} {1 {unrecognized token: "x'48695'"}}
+do_test main-3.2.8 {
+  catchsql {select x'486x'}
+} {1 {unrecognized token: "x'486x'"}}
+do_test main-3.2.9 {
+  catchsql {select $abc(}
+} {1 {unrecognized token: "$abc("}}
+do_test main-3.2.10 {
+  catchsql {select $abc(x}
+} {1 {unrecognized token: "$abc(x"}}
+set xyz 123
+do_test main-3.2.11 {
+  catchsql {select $::xyz}
+} {0 123}
+namespace eval ::testnamespace {
+  variable xyz 321
+}
+do_test main-3.2.12 {
+  catchsql {select $testnamespace::xyz}
+} {0 321}
+do_test main-3.2.13 {
+  catchsql {select $(abc)}
+} {1 {unrecognized token: "$"}}
+do_test main-3.2.14 {
+  set hi\u1234x 987
+  db eval "select \$hi\u1234x"
+} {987}
+do_test main-3.2.15 {
+  catchsql "select 456\u1234"
+} [list 1 "unrecognized token: \"456\u1234\""]
+do_test main-3.2.16 {
+  catchsql {select cast(3.14e+4 AS integer)}
+} {0 31400}
+do_test main-3.2.17 {
+  catchsql {select cast(3.14e+04 AS integer)}
+} {0 31400}
+do_test main-3.2.18 {
+  catchsql {select cast(3.14e+004 AS integer)}
+} {0 31400}
+do_test main-3.2.19 {
+  catchsql {select cast(3.14e4 AS integer)}
+} {0 31400}
+do_test main-3.2.20 {
+  catchsql {select cast(3.14e04 AS integer)}
+} {0 31400}
+do_test main-3.2.21 {
+  catchsql {select cast(3.14e004 AS integer)}
+} {0 31400}
+do_test main-3.2.16 {
+  catchsql {select cast(3.14E+4 AS integer)}
+} {0 31400}
+do_test main-3.2.17 {
+  catchsql {select cast(3.14E+04 AS integer)}
+} {0 31400}
+do_test main-3.2.18 {
+  catchsql {select cast(3.14E+004 AS integer)}
+} {0 31400}
+do_test main-3.2.19 {
+  catchsql {select cast(3.14E4 AS integer)}
+} {0 31400}
+do_test main-3.2.20 {
+  catchsql {select cast(3.14E04 AS integer)}
+} {0 31400}
+do_test main-3.2.21 {
+  catchsql {select cast(3.14E004 AS integer)}
+} {0 31400}
+do_test main-3.2.22 {
+  catchsql {select cast(3.14e-4 * 1e8 AS integer)}
+} {0 31400}
+do_test main-3.2.23 {
+  catchsql {select cast(3.14E-04 * 1E08 AS integer)}
+} {0 31400}
+do_test main-3.2.24 {
+  catchsql {select cast(3.14e-004 * 01.0E+8 AS integer)}
+} {0 31400}
+do_test main-3.2.25 {
+  catchsql {select 123/*abc}
+} {0 123}
+do_test main-3.2.26 {
+  catchsql {select 123/***abc}
+} {0 123}
+do_test main-3.2.27 {
+  catchsql {select 123/*/*2}
+} {0 123}
+do_test main-3.2.28 {
+  catchsql {select 123/**/*2}
+} {0 246}
+do_test main-3.2.29 {
+  catchsql {select 123/}
+} {1 {incomplete input}}
+do_test main-3.2.30 {
+  catchsql {select 123--5}
+} {0 123}
+
+
+do_test main-3.3 {
+  catch {db close}
+  foreach f [glob -nocomplain testdb/*] {forcedelete $f}
+  forcedelete testdb
+  sqlite3 db testdb
+  execsql {
+    create table T1(X REAL);  /* C-style comments allowed */
+    insert into T1 values(0.5);
+    insert into T1 values(0.5e2);
+    insert into T1 values(0.5e-002);
+    insert into T1 values(5e-002);
+    insert into T1 values(-5.0e-2);
+    insert into T1 values(-5.1e-2);
+    insert into T1 values(0.5e2);
+    insert into T1 values(0.5E+02);
+    insert into T1 values(5E+02);
+    insert into T1 values(5.0E+03);
+    select x*10 from T1 order by x*5;
+  }
+} {-0.51 -0.5 0.05 0.5 5.0 500.0 500.0 500.0 5000.0 50000.0}
+do_test main-3.4 {
+  set v [catch {execsql {create bogus}} msg]
+  lappend v $msg
+} {1 {near "bogus": syntax error}}
+do_test main-3.5 {
+  set v [catch {execsql {create}} msg]
+  lappend v $msg
+} {1 {incomplete input}}
+do_test main-3.6 {
+  catchsql {SELECT 'abc' + #9}
+} {1 {near "#9": syntax error}}
+
+# Print the version number so that it can be picked up by releasetest.tcl.
+#
+puts [db one {SELECT 'VERSION: ' ||
+                  sqlite_version() || ' ' ||
+                  sqlite_source_id();}]
+   
+finish_test
diff --git a/test/make-where7.tcl b/test/make-where7.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..706f18451c27124ff88e8d93bc6470e3ece7d63c
--- /dev/null
+++ b/test/make-where7.tcl
@@ -0,0 +1,120 @@
+#!/usr/bin/tclsh
+#
+# Run this script to generate randomized test cases for the where7.test
+# script.  The output will need to be manually copied and pasted into
+# the where7.test script.
+#
+puts "do_test where7-2.1 \173"
+puts "  db eval \173"
+puts "    CREATE TABLE t2(a INTEGER PRIMARY KEY,b,c,d,e,f,g);"
+set NA 100
+for {set a 1} {$a<=$NA} {incr a} {
+  set b [expr {$a*11}]
+  set div3 [expr {int(($a+2)/3)}]
+  set c [expr {$div3*1001}]
+  set d [expr {$a*1.001}]
+  set e [expr {$div3*100.1}]
+  set x [expr {$a%26}]
+  set f [string range {abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz} \
+           $x [expr {$x+8}]]
+  set div5 [expr {int(($a+7)/5)}]
+  set x [expr {$div5%26}]
+  set g [string range {zyxwvutsrqponmlkjihgfedcbazyxwvutsrqponmlkjihgfedcba} \
+           $x [expr {$x+6}]]
+  puts "    INSERT INTO t2 VALUES($a,$b,$c,$d,$e,'$f','$g');"
+  lappend fidx($f) $a
+  lappend gidx($g) $a
+  set gof($a) $g
+  set fof($a) $f
+
+  set expr "a=$a"
+  set term($expr) $a
+  set expr "((a BETWEEN [expr {$a-1}] AND [expr {$a+1}]) AND a!=$a)"
+  set x {}
+  if {$a>1} {set x [expr {$a-1}]}
+  if {$a<$NA} {lappend x [expr {$a+1}]}
+  set term($expr) $x
+  set expr "b=$b"
+  set term($expr) $a
+  set expr "b=[expr {$a*11+3}]"
+  set term($expr) {}
+  set expr "c=$c"
+  lappend term($expr) $a
+  set expr "(d>=$a.0 AND d<[expr {$a+1.0}] AND d NOT NULL)"
+  lappend term($expr) $a
+  set expr "f='$f'"
+  lappend term($expr) $a
+  set expr \
+     "(f GLOB '?[string range $f 1 4]*' AND f GLOB '[string range $f 0 3]*')"
+  lappend term($expr) $a
+  set expr "(g='$g' AND f GLOB '[string range $f 0 4]*')"
+  lappend term($expr) $a
+}
+puts "    CREATE INDEX t2b ON t2(b);"
+puts "    CREATE INDEX t2c ON t2(c);"
+puts "    CREATE INDEX t2d ON t2(d);"
+puts "    CREATE INDEX t2e ON t2(e);"
+puts "    CREATE INDEX t2f ON t2(f);"
+puts "    CREATE INDEX t2g ON t2(g);"
+puts "    CREATE TABLE t3(a INTEGER PRIMARY KEY,b,c,d,e,f,g);"
+puts "    INSERT INTO t3 SELECT * FROM t2;"
+puts "    CREATE INDEX t3b ON t3(b,c);"
+puts "    CREATE INDEX t3c ON t3(c,e);"
+puts "    CREATE INDEX t3d ON t3(d,g);"
+puts "    CREATE INDEX t3e ON t3(e,f,g);"
+puts "    CREATE INDEX t3f ON t3(f,b,d,c);"
+puts "    CREATE INDEX t3g ON t3(g,f);"
+
+puts "  \175"
+puts "\175 {}"
+
+set term(b<0) {}
+set term(1000000<b) {}
+set term(c<=10) {}
+set term(c>=[expr {int(($NA+2)/3)*1001+1}]) {}
+set term(d<0.0) {}
+set term(d>1e10) {}
+set expr {e IS NULL}
+set term($expr) {}
+set expr {f IS NULL}
+set term($expr) {}
+set expr {g IS NULL}
+set term($expr) {}
+
+set NT 1000
+set termlist [array names term]
+set nterm [llength $termlist]
+for {set i 2} {$i<=$NT+1} {incr i} {
+  set n [expr {int(rand()*10)+2}]
+  set w {}
+  unset -nocomplain r
+  for {set j 0} {$j<$n} {incr j} {
+    set k [expr {int(rand()*$nterm)}]
+    set t [lindex $termlist $k]
+    lappend w $t
+    foreach a $term($t) {
+      set r($a) 1
+    }
+  }
+  if {[info exists seen($w)]} {
+    incr i -1
+    continue
+  }
+  set seen($w) 1
+  set result [lsort -int [array names r]]
+  puts "do_test where7-2.$i.1 \173"
+  puts "  count_steps_sort \173"
+  puts "     SELECT a FROM t2"
+  set wc [join $w "\n         OR "]
+  puts "      WHERE $wc"
+  puts "  \175"
+  puts "\175 {$result scan 0 sort 0}"
+  puts "do_test where7-2.$i.2 \173"
+  puts "  count_steps_sort \173"
+  puts "     SELECT a FROM t3"
+  set wc [join $w "\n         OR "]
+  puts "      WHERE $wc"
+  puts "  \175"
+  puts "\175 {$result scan 0 sort 0}"
+}
+puts "finish_test"
diff --git a/test/malloc.test b/test/malloc.test
new file mode 100644
index 0000000000000000000000000000000000000000..5e82e8028be3b94320f61679128018480c391ed5
--- /dev/null
+++ b/test/malloc.test
@@ -0,0 +1,954 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file attempts to check the behavior of the SQLite library in 
+# an out-of-memory situation. When compiled with -DSQLITE_DEBUG=1, 
+# the SQLite library accepts a special command (sqlite3_memdebug_fail N C)
+# which causes the N-th malloc to fail.  This special feature is used
+# to see what happens in the library if a malloc were to really fail
+# due to an out-of-memory situation.
+#
+# $Id: malloc.test,v 1.81 2009/06/24 13:13:45 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix malloc
+
+
+# Only run these tests if memory debugging is turned on.
+#
+source $testdir/malloc_common.tcl
+if {!$MEMDEBUG} {
+   puts "Skipping malloc tests: not compiled with -DSQLITE_MEMDEBUG..."
+   finish_test
+   return
+}
+
+# Do a couple of memory dumps just to exercise the memory dump logic
+# that that we can say that we have.
+#
+puts stderr "This is a test.  Ignore the error that follows:"
+sqlite3_memdebug_dump $testdir
+puts "Memory dump to file memdump.txt..."
+sqlite3_memdebug_dump memdump.txt
+
+ifcapable bloblit&&subquery {
+  do_malloc_test 1 -tclprep {
+    db close
+  } -tclbody {
+    if {[catch {sqlite3 db test.db}]} {
+      error "out of memory"
+    }
+    sqlite3_extended_result_codes db 1
+  } -sqlbody {
+    DROP TABLE IF EXISTS t1;
+    CREATE TABLE t1(
+       a int, b float, c double, d text, e varchar(20),
+       primary key(a,b,c)
+    );
+    CREATE INDEX i1 ON t1(a,b);
+    INSERT INTO t1 VALUES(1,2.3,4.5,'hi',x'746865726500');
+    INSERT INTO t1 VALUES(6,7.0,0.8,'hello','out yonder');
+    SELECT * FROM t1;
+    SELECT avg(b) FROM t1 GROUP BY a HAVING b>20.0;
+    DELETE FROM t1 WHERE a IN (SELECT min(a) FROM t1);
+    SELECT count(*), group_concat(e) FROM t1;
+    SELECT b FROM t1 ORDER BY 1 COLLATE nocase;
+  } 
+}
+
+# Ensure that no file descriptors were leaked.
+do_test malloc-1.X {
+  catch {db close}
+  set sqlite_open_file_count
+} {0}
+
+ifcapable subquery {
+  do_malloc_test 2 -sqlbody {
+    CREATE TABLE t1(a int, b int default 'abc', c int default 1);
+    CREATE INDEX i1 ON t1(a,b);
+    INSERT INTO t1 VALUES(1,1,'99 abcdefghijklmnopqrstuvwxyz');
+    INSERT INTO t1 VALUES(2,4,'98 abcdefghijklmnopqrstuvwxyz');
+    INSERT INTO t1 VALUES(3,9,'97 abcdefghijklmnopqrstuvwxyz');
+    INSERT INTO t1 VALUES(4,16,'96 abcdefghijklmnopqrstuvwxyz');
+    INSERT INTO t1 VALUES(5,25,'95 abcdefghijklmnopqrstuvwxyz');
+    INSERT INTO t1 VALUES(6,36,'94 abcdefghijklmnopqrstuvwxyz');
+    SELECT 'stuff', count(*) as 'other stuff', max(a+10) FROM t1;
+    UPDATE t1 SET b=b||b||b||b;
+    UPDATE t1 SET b=a WHERE a in (10,12,22);
+    INSERT INTO t1(c,b,a) VALUES(20,10,5);
+    INSERT INTO t1 SELECT * FROM t1
+        WHERE a IN (SELECT a FROM t1 WHERE a<10);
+    DELETE FROM t1 WHERE a>=10;
+    DROP INDEX i1;
+    DELETE FROM t1;
+  } 
+}
+
+# Ensure that no file descriptors were leaked.
+do_test malloc-2.X {
+  catch {db close}
+  set sqlite_open_file_count
+} {0}
+
+do_malloc_test 3 -sqlbody {
+  BEGIN TRANSACTION;
+  CREATE TABLE t1(a int, b int, c int);
+  CREATE INDEX i1 ON t1(a,b);
+  INSERT INTO t1 VALUES(1,1,99);
+  INSERT INTO t1 VALUES(2,4,98);
+  INSERT INTO t1 VALUES(3,9,97);
+  INSERT INTO t1 VALUES(4,16,96);
+  INSERT INTO t1 VALUES(5,25,95);
+  INSERT INTO t1 VALUES(6,36,94);
+  INSERT INTO t1(c,b,a) VALUES(20,10,5);
+  DELETE FROM t1 WHERE a>=10;
+  DROP INDEX i1;
+  DELETE FROM t1;
+  ROLLBACK;
+} 
+
+
+# Ensure that no file descriptors were leaked.
+do_test malloc-3.X {
+  catch {db close}
+  set sqlite_open_file_count
+} {0}
+
+ifcapable subquery {
+  do_malloc_test 4 -sqlbody {
+    BEGIN TRANSACTION;
+    CREATE TABLE t1(a int, b int, c int);
+    CREATE INDEX i1 ON t1(a,b);
+    INSERT INTO t1 VALUES(1,1,99);
+    INSERT INTO t1 VALUES(2,4,98);
+    INSERT INTO t1 VALUES(3,9,97);
+    INSERT INTO t1 VALUES(4,16,96);
+    INSERT INTO t1 VALUES(5,25,95);
+    INSERT INTO t1 VALUES(6,36,94);
+    UPDATE t1 SET b=a WHERE a in (10,12,22);
+    INSERT INTO t1 SELECT * FROM t1
+       WHERE a IN (SELECT a FROM t1 WHERE a<10);
+    DROP INDEX i1;
+    DELETE FROM t1;
+    COMMIT;
+  } 
+}
+
+# Ensure that no file descriptors were leaked.
+do_test malloc-4.X {
+  catch {db close}
+  set sqlite_open_file_count
+} {0}
+
+ifcapable trigger {
+  do_malloc_test 5 -sqlbody {
+    BEGIN TRANSACTION;
+    CREATE TABLE t1(a,b);
+    CREATE TABLE t2(x,y);
+    CREATE TRIGGER r1 AFTER INSERT ON t1 WHEN new.a = 2 BEGIN
+      INSERT INTO t2(x,y) VALUES(new.rowid,1);
+      INSERT INTO t2(x,y) SELECT * FROM t2;
+      INSERT INTO t2 SELECT * FROM t2;
+      UPDATE t2 SET y=y+1 WHERE x=new.rowid;
+      SELECT 123;
+      DELETE FROM t2 WHERE x=new.rowid;
+    END;
+    INSERT INTO t1(a,b) VALUES(2,3);
+    COMMIT;
+  } 
+}
+
+# Ensure that no file descriptors were leaked.
+do_test malloc-5.X {
+  catch {db close}
+  set sqlite_open_file_count
+} {0}
+
+ifcapable vacuum {
+  do_malloc_test 6 -sqlprep {
+    BEGIN TRANSACTION;
+    CREATE TABLE t1(a);
+    INSERT INTO t1 VALUES(1);
+    INSERT INTO t1 SELECT a*2 FROM t1;
+    INSERT INTO t1 SELECT a*2 FROM t1;
+    INSERT INTO t1 SELECT a*2 FROM t1;
+    INSERT INTO t1 SELECT a*2 FROM t1;
+    INSERT INTO t1 SELECT a*2 FROM t1;
+    INSERT INTO t1 SELECT a*2 FROM t1;
+    INSERT INTO t1 SELECT a*2 FROM t1;
+    INSERT INTO t1 SELECT a*2 FROM t1;
+    INSERT INTO t1 SELECT a*2 FROM t1;
+    INSERT INTO t1 SELECT a*2 FROM t1;
+    DELETE FROM t1 where rowid%5 = 0;
+    COMMIT;
+  } -sqlbody {
+    VACUUM;
+  } 
+}
+
+autoinstall_test_functions
+do_malloc_test 7 -sqlprep {
+  CREATE TABLE t1(a, b);
+  INSERT INTO t1 VALUES(1, 2);
+  INSERT INTO t1 VALUES(3, 4);
+  INSERT INTO t1 VALUES(5, 6);
+  INSERT INTO t1 VALUES(7, randstr(1200,1200));
+} -sqlbody {
+  SELECT min(a) FROM t1 WHERE a<6 GROUP BY b;
+  SELECT a FROM t1 WHERE a<6 ORDER BY a;
+  SELECT b FROM t1 WHERE a>6;
+}
+
+# This block is designed to test that some malloc failures that may
+# occur in vdbeapi.c. Specifically, if a malloc failure that occurs
+# when converting UTF-16 text to integers and real numbers is handled
+# correctly. 
+#
+# This is done by retrieving a string from the database engine and
+# manipulating it using the sqlite3_column_*** APIs. This doesn't 
+# actually return an error to the user when a malloc() fails.. That 
+# could be viewed as a bug.
+#
+# These tests only run if UTF-16 support is compiled in.
+#
+ifcapable utf16 {
+  set ::STMT {}
+  do_malloc_test 8 -tclprep {
+    set sql "SELECT '[string repeat abc 20]', '[string repeat def 20]', ?"
+    set ::STMT [sqlite3_prepare db $sql -1 X]
+    sqlite3_step $::STMT
+    if { $::tcl_platform(byteOrder)=="littleEndian" } {
+      set ::bomstr "\xFF\xFE"
+    } else {
+      set ::bomstr "\xFE\xFF"
+    }
+    append ::bomstr [encoding convertto unicode "123456789_123456789_123456789"]
+  } -tclbody {
+    sqlite3_column_text16 $::STMT 0
+    sqlite3_column_int $::STMT 0
+    sqlite3_column_text16 $::STMT 1
+    sqlite3_column_double $::STMT 1
+    set rc [sqlite3_reset $::STMT]
+    if {$rc eq "SQLITE_NOMEM"} {error "out of memory"}
+    sqlite3_bind_text16 $::STMT 1 $::bomstr 60
+    #catch {sqlite3_finalize $::STMT}
+    #if {[lindex [sqlite_malloc_stat] 2]<=0} {
+    #  error "out of memory"
+    #}
+  } -cleanup {
+    if {$::STMT!=""} {
+      sqlite3_finalize $::STMT
+      set ::STMT {}
+    }
+  }
+}
+
+# This block tests that malloc() failures that occur whilst commiting
+# a multi-file transaction are handled correctly.
+#
+do_malloc_test 9 -sqlprep {
+  ATTACH 'test2.db' as test2;
+  CREATE TABLE abc1(a, b, c);
+  CREATE TABLE test2.abc2(a, b, c);
+} -sqlbody {
+  BEGIN;
+  INSERT INTO abc1 VALUES(1, 2, 3);
+  INSERT INTO abc2 VALUES(1, 2, 3);
+  COMMIT;
+}
+
+# This block tests malloc() failures that occur while opening a 
+# connection to a database.
+do_malloc_test 10 -tclprep {
+  catch {db2 close}
+  db close
+  forcedelete test.db test.db-journal
+  sqlite3 db test.db
+  sqlite3_extended_result_codes db 1
+  db eval {CREATE TABLE abc(a, b, c)}
+} -tclbody {
+  db close
+  sqlite3 db2 test.db
+  sqlite3_extended_result_codes db2 1
+  db2 eval {SELECT * FROM sqlite_master}
+  db2 close
+}
+
+# This block tests malloc() failures that occur within calls to
+# sqlite3_create_function().
+do_malloc_test 11 -tclbody {
+  set rc [sqlite3_create_function db]
+  if {[string match $rc SQLITE_OK]} {
+    set rc [sqlite3_create_aggregate db]
+  }
+  if {[string match $rc SQLITE_NOMEM]} {
+    error "out of memory"
+  }
+}
+
+do_malloc_test 12 -tclbody {
+  set sql16 [encoding convertto unicode "SELECT * FROM sqlite_master"]
+  append sql16 "\00\00"
+  set ::STMT [sqlite3_prepare16 db $sql16 -1 DUMMY]
+  sqlite3_finalize $::STMT
+}
+
+# Test malloc errors when replaying two hot journals from a 2-file 
+# transaction.
+ifcapable crashtest&&attach {
+  do_malloc_test 13 -tclprep {
+    set rc [crashsql -delay 1 -file test2.db {
+      ATTACH 'test2.db' as aux;
+      PRAGMA cache_size = 10;
+      BEGIN;
+      CREATE TABLE aux.t2(a, b, c);
+      CREATE TABLE t1(a, b, c);
+      COMMIT;
+    }]
+    if {$rc!="1 {child process exited abnormally}"} {
+      error "Wrong error message: $rc"
+    }
+  } -tclbody {
+    db eval {ATTACH 'test2.db' as aux;}
+    set rc [catch {db eval {
+      SELECT * FROM t1; 
+      SELECT * FROM t2;
+    }} err]
+    if {$rc && $err!="no such table: t1"} {
+      error $err
+    }
+  }
+}
+
+if {$tcl_platform(platform)!="windows" && [atomic_batch_write test.db]==0} {
+  do_malloc_test 14 -tclprep {
+    catch {db close}
+    sqlite3 db2 test2.db
+    sqlite3_extended_result_codes db2 1
+    db2 eval {
+      PRAGMA journal_mode = DELETE;    /* For inmemory_journal permutation */
+      PRAGMA synchronous = 0;
+      CREATE TABLE t1(a, b);
+      INSERT INTO t1 VALUES(1, 2);
+      BEGIN;
+      INSERT INTO t1 VALUES(3, 4);
+    }
+    forcecopy test2.db test.db
+    forcecopy test2.db-journal test.db-journal
+    db2 close
+  } -tclbody {
+    sqlite3 db test.db
+    sqlite3_extended_result_codes db 1
+
+    # If an out-of-memory occurs within a call to a VFS layer function during
+    # hot-journal rollback, sqlite will report SQLITE_CORRUPT. See commit
+    # [5668] for details.
+    set rc [catch {db eval { SELECT * FROM t1 }} msg]
+    if {$msg eq "database disk image is malformed"} { set msg "out of memory" }
+    if {$rc} { error $msg }
+    set msg
+  }
+}
+
+proc string_compare {a b} {
+  return [string compare $a $b]
+}
+
+# Test for malloc() failures in sqlite3_create_collation() and 
+# sqlite3_create_collation16().
+#
+ifcapable utf16 {
+  do_malloc_test 15 -start 4 -tclbody {
+    db collate string_compare string_compare
+    if {[catch {add_test_collate db 1 1 1} msg]} {
+      if {$msg=="SQLITE_NOMEM"} {set msg "out of memory"}
+      error $msg
+    }
+  
+    db complete {SELECT "hello """||'world"' [microsoft], * FROM anicetable;}
+    db complete {-- Useful comment}
+  
+    execsql {
+      CREATE TABLE t1(a, b COLLATE string_compare);
+      INSERT INTO t1 VALUES(10, 'string');
+      INSERT INTO t1 VALUES(10, 'string2');
+    }
+  }
+}
+
+# Also test sqlite3_complete(). There are (currently) no malloc()
+# calls in this function, but test anyway against future changes.
+#
+do_malloc_test 16 -tclbody {
+  db complete {SELECT "hello """||'world"' [microsoft], * FROM anicetable;}
+  db complete {-- Useful comment}
+  db eval {
+    SELECT * FROM sqlite_master;
+  }
+}
+
+# Test handling of malloc() failures in sqlite3_open16().
+#
+ifcapable utf16 {
+  do_malloc_test 17 -tclbody {
+    set DB2 0
+    set STMT 0
+  
+    # open database using sqlite3_open16()
+    set filename [encoding convertto unicode test.db]
+    append filename "\x00\x00"
+    set DB2 [sqlite3_open16 $filename -unused]
+    if {0==$DB2} {
+      error "out of memory"
+    }
+    sqlite3_extended_result_codes $DB2 1
+  
+    # Prepare statement
+    set rc [catch {sqlite3_prepare $DB2 {SELECT * FROM sqlite_master} -1 X} msg]
+    if {[sqlite3_errcode $DB2] eq "SQLITE_IOERR+12"} {
+      error "out of memory"
+    }
+    if {[regexp ".*automatic extension loading.*" [sqlite3_errmsg $DB2]]} {
+      error "out of memory"
+    }
+    if {$rc} {
+      error [string range $msg 4 end]
+    }
+    set STMT $msg
+  
+    # Finalize statement
+    set rc [sqlite3_finalize $STMT]
+    if {$rc!="SQLITE_OK"} {
+      error [sqlite3_errmsg $DB2]
+    }
+    set STMT 0
+  
+    # Close database
+    set rc [sqlite3_close $DB2]
+    if {$rc!="SQLITE_OK"} {
+      error [sqlite3_errmsg $DB2]
+    }
+    set DB2 0
+  } -cleanup {
+    if {$STMT!="0"} {
+      sqlite3_finalize $STMT
+    }
+    if {$DB2!="0"} {
+      set rc [sqlite3_close $DB2]
+    }
+  }
+}
+
+# Test handling of malloc() failures in sqlite3_errmsg16().
+#
+ifcapable utf16 {
+  do_malloc_test 18 -tclprep {
+    catch {
+      db eval "SELECT [string repeat longcolumnname 10] FROM sqlite_master"
+    }
+  } -tclbody {
+    set utf16 [sqlite3_errmsg16 [sqlite3_connection_pointer db]]
+    binary scan $utf16 c* bytes
+    if {[llength $bytes]==0} {
+      error "out of memory"
+    }
+  }
+}
+
+# This test is aimed at coverage testing. Specificly, it is supposed to
+# cause a malloc() only used when converting between the two utf-16 
+# encodings to fail (i.e. little-endian->big-endian). It only actually 
+# hits this malloc() on little-endian hosts.
+#
+set static_string "\x00h\x00e\x00l\x00l\x00o"
+for {set l 0} {$l<10} {incr l} {
+  append static_string $static_string
+}
+append static_string "\x00\x00"
+do_malloc_test 19 -tclprep {
+  execsql {
+    PRAGMA encoding = "UTF16be";
+    CREATE TABLE abc(a, b, c);
+  }
+} -tclbody {
+  unset -nocomplain ::STMT
+  set r [catch {
+    set ::STMT [sqlite3_prepare db {SELECT ?} -1 DUMMY]
+    sqlite3_bind_text16 -static $::STMT 1 $static_string 112
+  } msg]
+  if {$r} {error [string range $msg 4 end]}
+  set msg
+} -cleanup {
+  if {[info exists ::STMT]} {
+    sqlite3_finalize $::STMT
+  }
+}
+unset static_string
+
+# Make sure SQLITE_NOMEM is reported out on an ATTACH failure even
+# when the malloc failure occurs within the nested parse.
+#
+ifcapable attach {
+  do_malloc_test 20 -tclprep {
+    db close
+    forcedelete test2.db test2.db-journal
+    sqlite3 db test2.db
+    sqlite3_extended_result_codes db 1
+    db eval {CREATE TABLE t1(x);}
+    db close
+  } -tclbody {
+    if {[catch {sqlite3 db test.db}]} {
+      error "out of memory"
+    }
+    sqlite3_extended_result_codes db 1
+  } -sqlbody {
+    ATTACH DATABASE 'test2.db' AS t2;
+    SELECT * FROM t1;
+    DETACH DATABASE t2;
+  } 
+}
+
+# Test malloc failure whilst installing a foreign key.
+#
+ifcapable foreignkey {
+  do_malloc_test 21 -sqlbody {
+    CREATE TABLE abc(a, b, c, FOREIGN KEY(a) REFERENCES abc(b))
+  } 
+}
+
+# Test malloc failure in an sqlite3_prepare_v2() call.
+#
+do_malloc_test 22 -tclbody {
+  set ::STMT ""
+  set r [catch {
+    set ::STMT [
+      sqlite3_prepare_v2 db "SELECT * FROM sqlite_master" -1 DUMMY
+    ]
+  } msg]
+  if {$r} {error [string range $msg 4 end]}
+} -cleanup {
+  if {$::STMT ne ""} {
+    sqlite3_finalize $::STMT
+    set ::STMT ""
+  }
+}
+
+ifcapable {pager_pragmas} {
+  # This tests a special case - that an error that occurs while the pager
+  # is trying to recover from error-state in exclusive-access mode works.
+  #
+  do_malloc_test 23 -tclprep {
+    db eval {
+      PRAGMA cache_size = 10;
+      PRAGMA locking_mode = exclusive;
+      BEGIN;
+      CREATE TABLE abc(a, b, c);
+      CREATE INDEX abc_i ON abc(a, b, c);
+      INSERT INTO abc 
+        VALUES(randstr(100,100), randstr(100,100), randstr(100,100));
+      INSERT INTO abc 
+        SELECT randstr(100,100), randstr(100,100), randstr(100,100) FROM abc;
+      INSERT INTO abc 
+        SELECT randstr(100,100), randstr(100,100), randstr(100,100) FROM abc;
+      INSERT INTO abc 
+        SELECT randstr(100,100), randstr(100,100), randstr(100,100) FROM abc;
+      INSERT INTO abc 
+        SELECT randstr(100,100), randstr(100,100), randstr(100,100) FROM abc;
+      INSERT INTO abc 
+        SELECT randstr(100,100), randstr(100,100), randstr(100,100) FROM abc;
+      COMMIT;
+    }
+  
+    # This puts the pager into error state.
+    #
+    db eval BEGIN
+    db eval {UPDATE abc SET a = 0 WHERE oid%2}
+    set ::sqlite_io_error_pending 10
+    catch {db eval {ROLLBACK}} msg
+
+  } -tclbody {
+    # If an out-of-memory occurs within a call to a VFS layer function during
+    # hot-journal rollback, sqlite will report SQLITE_CORRUPT. See commit
+    # [5668] for details.
+    set rc [catch {db eval { SELECT * FROM abc LIMIT 10 }} msg]
+    if {$msg eq "database disk image is malformed"} { set msg "out of memory" }
+    if {$rc} { error $msg }
+    set msg
+  } -cleanup {
+    set e [db eval {PRAGMA integrity_check}]
+    if {$e ne "ok"} {error $e}
+  }
+}
+
+ifcapable compound {
+  do_malloc_test 24 -sqlprep {
+    CREATE TABLE t1(a, b, c)
+  } -sqlbody {
+    SELECT 1 FROM t1 UNION SELECT 2 FROM t1 ORDER BY 1
+  }
+}
+
+ifcapable view&&trigger {
+  do_malloc_test 25 -sqlprep {
+    CREATE TABLE t1(a, b, c);
+    CREATE VIEW v1 AS SELECT * FROM t1;
+    CREATE TRIGGER v1t1 INSTEAD OF DELETE ON v1 BEGIN SELECT 1; END;
+    CREATE TRIGGER v1t2 INSTEAD OF INSERT ON v1 BEGIN SELECT 1; END;
+    CREATE TRIGGER v1t3 INSTEAD OF UPDATE ON v1 BEGIN SELECT 1; END;
+  } -sqlbody {
+    DELETE FROM v1 WHERE a = 1;
+    INSERT INTO v1 VALUES(1, 2, 3);
+    UPDATE v1 SET a = 1 WHERE b = 2;
+  }
+}
+
+do_malloc_test 25 -sqlprep {
+  CREATE TABLE abc(a, b, c);
+  CREATE INDEX i1 ON abc(a, b);
+  INSERT INTO abc VALUES(1, 2, 3);
+  INSERT INTO abc VALUES(4, 5, 6);
+} -tclbody {
+  # For each UPDATE executed, the cursor used for the SELECT statement
+  # must be "saved". Because the cursor is open on an index, this requires
+  # a malloc() to allocate space to save the index key. This test case is
+  # aimed at testing the response of the library to a failure in that
+  # particular malloc() call.
+  db eval {SELECT a FROM abc ORDER BY a} {
+    db eval {UPDATE abc SET b = b - 1 WHERE a = $a}
+  }
+}
+
+# This test is designed to test a specific juncture in the sqlite code.
+# The database set up by -sqlprep script contains a single table B-Tree
+# of height 2. In the -tclbody script, the existing database connection
+# is closed and a new one opened and used to insert a new row into the
+# table B-Tree. By using a new connection, the outcome of a malloc() 
+# failure while seeking to the right-hand side of the B-Tree to insert 
+# a new record can be tested.
+#
+do_malloc_test 26 -sqlprep {
+  BEGIN;
+  CREATE TABLE t1(a, b);
+  INSERT INTO t1 VALUES(1, randomblob(210));
+  INSERT INTO t1 VALUES(1, randomblob(210));
+  INSERT INTO t1 VALUES(1, randomblob(210));
+  INSERT INTO t1 VALUES(1, randomblob(210));
+  INSERT INTO t1 VALUES(1, randomblob(210));
+  COMMIT;
+} -tclbody {
+  db close
+  sqlite3 db test.db
+  db eval { INSERT INTO t1 VALUES(1, randomblob(210)) }
+}
+
+# Test that no memory is leaked following a malloc() failure in
+# sqlite3_initialize().
+#
+do_malloc_test 27 -tclprep {
+  db close
+  sqlite3_shutdown
+} -tclbody {
+  set rc [sqlite3_initialize]
+  if {$rc == "SQLITE_NOMEM"} {
+    error "out of memory"
+  }
+}
+autoinstall_test_functions
+
+# Test that malloc failures that occur while processing INDEXED BY
+# clauses are handled correctly.
+do_malloc_test 28 -sqlprep {
+  CREATE TABLE t1(a, b);
+  CREATE INDEX i1 ON t1(a);
+  CREATE VIEW v1 AS SELECT * FROM t1 INDEXED BY i1 WHERE a = 10;
+} -sqlbody {
+  SELECT * FROM t1 INDEXED BY i1 ORDER BY a;
+  SELECT * FROM v1;
+}
+
+do_malloc_test 29 -sqlprep {
+  CREATE TABLE t1(a TEXT, b TEXT);
+} -sqlbody {
+  INSERT INTO t1 VALUES(1, -234);
+  INSERT INTO t1 SELECT * FROM t1 UNION ALL SELECT * FROM t1;
+}
+
+do_malloc_test 30 -tclprep {
+  db eval {
+    CREATE TABLE t1(x PRIMARY KEY);
+    INSERT INTO t1 VALUES(randstr(500,500));
+    INSERT INTO t1 VALUES(randstr(500,500));
+    INSERT INTO t1 VALUES(randstr(500,500));
+  }
+  db close
+  sqlite3 db test.db
+
+  # The DELETE command in the following block moves the overflow pages that
+  # are part of the primary key index to the free-list. But it does not
+  # actually load the content of the pages. This leads to the peculiar
+  # situation where cache entries exist, but are not populated with data.
+  # They are populated next time they are requested by the b-tree layer.
+  #
+  db eval {
+    BEGIN;
+      DELETE FROM t1;
+    ROLLBACK;
+  }
+} -sqlbody {
+  -- This statement requires the 'no-content' pages loaded by the DELETE
+  -- statement above. When requesting the pages, the content is loaded
+  -- from the database file. The point of this test case is to test handling
+  -- of malloc errors (including SQLITE_IOERR_NOMEM errors) when loading
+  -- the content.
+  SELECT * FROM t1 ORDER BY x;
+}
+
+# After committing a transaction in persistent-journal mode, if a journal
+# size limit is configured SQLite may attempt to truncate the journal file.
+# This test verifies the libraries response to a malloc() failure during
+# this operation.
+#
+do_malloc_test 31 -sqlprep {
+  PRAGMA journal_mode = persist;
+  PRAGMA journal_size_limit = 1024;
+  CREATE TABLE t1(a PRIMARY KEY, b);
+} -sqlbody {
+  INSERT INTO t1 VALUES(1, 2);
+}
+
+# When written, this test provoked an obscure change-counter bug.
+# 
+# If, when running in exclusive mode, a malloc() failure occurs
+# after the database file change-counter has been written but
+# before the transaction has been committed, then the transaction
+# is automatically rolled back. However, internally the 
+# Pager.changeCounterDone flag was being left set. This means
+# that if the same connection attempts another transaction following
+# the malloc failure and rollback, the change counter will not
+# be updated. This could corrupt another processes cache.
+#
+do_malloc_test 32 -tclprep {
+  # Build a small database containing an indexed table.
+  #
+  db eval {
+    PRAGMA locking_mode = normal;
+    BEGIN;
+    CREATE TABLE t1(a PRIMARY KEY, b);
+    INSERT INTO t1 VALUES(1, 'one');
+    INSERT INTO t1 VALUES(2, 'two');
+    INSERT INTO t1 VALUES(3, 'three');
+    COMMIT;
+    PRAGMA locking_mode = exclusive;
+  }
+
+  # Open a second database connection. Load the table (but not index)
+  # into the second connections pager cache.
+  #
+  sqlite3 db2 test.db
+  db2 eval { 
+    PRAGMA locking_mode = normal;
+    SELECT b FROM t1;
+  }
+
+} -tclbody {
+  # Running in exclusive mode, perform a database transaction that 
+  # modifies both the database table and index. For iterations where
+  # the malloc failure occurs after updating the change counter but
+  # before committing the transaction, this should result in the
+  # transaction being rolled back but the changeCounterDone flag
+  # left set.
+  #
+  db eval { UPDATE t1 SET a = a + 3 }
+} -cleanup {
+
+  # Perform another transaction using the first connection. Unlock
+  # the database after doing so. If this is one of the right iterations,
+  # then this should result in the database contents being updated but
+  # the change-counter left as it is.
+  #
+  db eval { 
+    PRAGMA locking_mode = normal;
+    UPDATE t1 SET a = a + 3;
+  }
+
+  # Now do an integrity check with the second connection. The second
+  # connection still has the database table in its cache. If this is
+  # one of the magic iterations and the change counter was not modified,
+  # then it won't realize that the cached data is out of date. Since
+  # the cached data won't match the up to date index data read from
+  # the database file, the integrity check should fail.
+  #
+  set zRepeat "transient"
+  if {$::iRepeat} {set zRepeat "persistent"}
+  do_test malloc-32.$zRepeat.${::n}.integrity {
+    execsql {PRAGMA integrity_check} db2
+  } {ok}
+  db2 close
+}
+
+# The following two OOM tests verify that OOM handling works in the
+# code used to optimize "SELECT count(*) FROM <tbl>".
+#
+do_malloc_test 33 -tclprep {
+  db eval { PRAGMA cache_size = 10 }
+  db transaction {
+    db eval { CREATE TABLE abc(a, b) }
+    for {set i 0} {$i<500} {incr i} {
+      db eval {INSERT INTO abc VALUES(randstr(100,100), randstr(1000,1000))}
+    }
+  }
+} -sqlbody {
+  SELECT count(*) FROM abc;
+}
+do_malloc_test 34 -tclprep {
+  db eval { PRAGMA cache_size = 10 }
+  db transaction {
+    db eval { CREATE TABLE abc(a PRIMARY KEY, b) }
+    for {set i 0} {$i<500} {incr i} {
+      db eval {INSERT INTO abc VALUES(randstr(100,100), randstr(1000,1000))}
+    }
+  }
+} -sqlbody {
+  SELECT count(*) FROM abc;
+}
+
+proc f {args} { error "Quite a long error!" }
+do_malloc_test 35 -tclprep {
+  db func f f
+  set ::STMT [sqlite3_prepare db "SELECT f()" -1 DUMMY]
+  sqlite3_step $::STMT
+} -tclbody {
+  sqlite3_finalize $::STMT
+} -cleanup {
+  # At one point an assert( !db->mallocFailed ) could fail in the following
+  # call to sqlite3_errmsg(). Because sqlite3_finalize() had failed to clear
+  # the flag before returning.
+  sqlite3_errmsg16 db
+}
+
+do_malloc_test 36 -sqlprep {
+  CREATE TABLE t1(a, b);
+  INSERT INTO t1 VALUES(1, 2);
+  INSERT INTO t1 VALUES(3, 4);
+} -sqlbody {
+  SELECT test_agg_errmsg16(), group_concat(a) FROM t1
+}
+
+# At one point, if an OOM occurred immediately after obtaining a shared lock
+# on the database file, the file remained locked. This test case ensures
+# that bug has been fixed.i
+if {[db eval {PRAGMA locking_mode}]!="exclusive"} {
+  do_malloc_test 37 -tclprep {
+    sqlite3 db2 test.db
+    execsql {
+      CREATE TABLE t1(a, b);
+      INSERT INTO t1 VALUES(1, 2);
+    } db2
+  } -sqlbody {
+    SELECT * FROM t1;
+  } -cleanup {
+    # Try to write to the database using connection [db2]. If connection [db]
+    # has correctly released the shared lock, this write attempt should 
+    # succeed. If [db] has not released the lock, this should hit an 
+    # SQLITE_BUSY error.
+    do_test malloc-36.$zRepeat.${::n}.unlocked {
+      execsql {INSERT INTO t1 VALUES(3, 4)} db2
+    } {}
+    db2 close
+  }
+  catch { db2 close }
+}
+
+
+# Test that if an OOM error occurs, aux-data is still correctly destroyed.
+# This test case was causing either a memory-leak or an assert() failure
+# at one point, depending on the configuration.
+#
+do_malloc_test 39 -tclprep {
+  sqlite3 db test.db
+} -sqlbody {
+  SELECT test_auxdata('abc', 'def');
+} -cleanup {
+  db close
+}
+
+reset_db
+add_test_utf16bin_collate db
+do_execsql_test 40.1 {
+  CREATE TABLE t1(a);
+  INSERT INTO t1 VALUES('fghij');
+  INSERT INTO t1 VALUES('pqrst');
+  INSERT INTO t1 VALUES('abcde');
+  INSERT INTO t1 VALUES('uvwxy');
+  INSERT INTO t1 VALUES('klmno');
+}
+do_execsql_test 40.2 {
+  SELECT * FROM t1 ORDER BY 1 COLLATE utf16bin;
+} {abcde fghij klmno pqrst uvwxy}
+do_faultsim_test 40.3 -faults oom-trans* -body {
+  execsql {
+    SELECT * FROM t1 ORDER BY 1 COLLATE utf16bin;
+  }
+} -test {
+  faultsim_test_result {0 {abcde fghij klmno pqrst uvwxy}} 
+  faultsim_integrity_check
+}
+
+reset_db
+add_test_utf16bin_collate db
+set big [string repeat x 200]
+do_execsql_test 41.1 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a COLLATE utf16bin);
+  INSERT INTO t1 VALUES('fghij' || $::big);
+  INSERT INTO t1 VALUES('pqrst' || $::big);
+  INSERT INTO t1 VALUES('abcde' || $::big);
+  INSERT INTO t1 VALUES('uvwxy' || $::big);
+  INSERT INTO t1 VALUES('klmno' || $::big);
+  CREATE INDEX i1 ON t1(a);
+}
+do_faultsim_test 41.2 -faults oom* -body {
+  execsql { SELECT * FROM t1 WHERE a = ('abcde' || $::big)}
+} -test {
+  faultsim_test_result [list 0 "abcde$::big"]
+  faultsim_integrity_check
+}
+
+reset_db
+do_execsql_test 42.0 {
+  CREATE TABLE t1(x INTEGER PRIMARY KEY, y, z);
+  CREATE TABLE t2(a, b);
+  CREATE VIEW a002 AS SELECT *, sum(b) AS m FROM t2 GROUP BY a;
+}
+faultsim_save_and_close
+do_faultsim_test 42 -faults oom-tran* -prep {
+  faultsim_restore_and_reopen
+  execsql { SELECT * FROM sqlite_master }
+} -body {
+  execsql {
+    SELECT t1.z, a002.m
+    FROM t1 JOIN a002 ON t1.y=a002.m
+    WHERE t1.x IN (1,2,3);
+  }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+
+# Ensure that no file descriptors were leaked.
+do_test malloc-99.X {
+  catch {db close}
+  set sqlite_open_file_count
+} {0}
+
+puts open-file-count=$sqlite_open_file_count
+finish_test
diff --git a/test/malloc3.test b/test/malloc3.test
new file mode 100644
index 0000000000000000000000000000000000000000..b497ab66e9169cd2b45ebb47bc8ef99357e01615
--- /dev/null
+++ b/test/malloc3.test
@@ -0,0 +1,703 @@
+# 2005 November 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains tests to ensure that the library handles malloc() failures
+# correctly. The emphasis of these tests are the _prepare(), _step() and
+# _finalize() calls.
+#
+# $Id: malloc3.test,v 1.24 2008/10/14 15:54:08 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+
+# Only run these tests if memory debugging is turned on.
+#
+if {!$MEMDEBUG} {
+   puts "Skipping malloc3 tests: not compiled with -DSQLITE_MEMDEBUG..."
+   finish_test
+   return
+}
+
+# Do not run these tests if F2FS batch writes are supported. In this case,
+# it is possible for a single DML statement in an implicit transaction
+# to fail with SQLITE_NOMEM, but for the transaction to still end up
+# committed to disk. Which confuses the tests in this module.
+#
+if {[atomic_batch_write test.db]} {
+   puts "Skipping malloc3 tests: atomic-batch support"
+   finish_test
+   return
+}
+
+
+# Do not run these tests with an in-memory journal.
+#
+# In the pager layer, if an IO or OOM error occurs during a ROLLBACK, or
+# when flushing a page to disk due to cache-stress, the pager enters an
+# "error state". The only way out of the error state is to unlock the
+# database file and end the transaction, leaving whatever journal and
+# database files happen to be on disk in place. The next time the current
+# (or any other) connection opens a read transaction, hot-journal rollback
+# is performed if necessary.
+#
+# Of course, this doesn't work with an in-memory journal.
+#
+if {[permutation]=="inmemory_journal"} {
+  finish_test
+  return
+}
+
+#--------------------------------------------------------------------------
+# NOTES ON RECOVERING FROM A MALLOC FAILURE
+# 
+# The tests in this file test the behaviours described in the following
+# paragraphs. These tests test the behaviour of the system when malloc() fails
+# inside of a call to _prepare(), _step(), _finalize() or _reset(). The
+# handling of malloc() failures within ancillary procedures is tested
+# elsewhere.
+#
+# Overview:
+#
+# Executing a statement is done in three stages (prepare, step and finalize). A
+# malloc() failure may occur within any stage. If a memory allocation fails
+# during statement preparation, no statement handle is returned. From the users
+# point of view the system state is as if _prepare() had never been called.
+#
+# If the memory allocation fails during the _step() or _finalize() calls, then
+# the database may be left in one of two states (after finalize() has been
+# called):
+#
+#     * As if the neither _step() nor _finalize() had ever been called on
+#       the statement handle (i.e. any changes made by the statement are
+#       rolled back).
+#     * The current transaction may be rolled back. In this case a hot-journal
+#       may or may not actually be present in the filesystem.
+#
+# The caller can tell the difference between these two scenarios by invoking
+# _get_autocommit().
+#
+#
+# Handling of sqlite3_reset():
+#
+# If a malloc() fails while executing an sqlite3_reset() call, this is handled
+# in the same way as a failure within _finalize(). The statement handle
+# is not deleted and must be passed to _finalize() for resource deallocation.
+# Attempting to _step() or _reset() the statement after a failed _reset() will
+# always return SQLITE_NOMEM.
+#
+#
+# Other active SQL statements:
+#
+# The effect of a malloc failure on concurrently executing SQL statements,
+# particularly when the statement is executing with READ_UNCOMMITTED set and
+# the malloc() failure mandates statement rollback only. Currently, if
+# transaction rollback is required, all other vdbe's are aborted.
+#
+#     Non-transient mallocs in btree.c:
+#         * The Btree structure itself
+#         * Each BtCursor structure
+#
+#     Mallocs in pager.c:
+#         readMasterJournal()  - Space to read the master journal name
+#         pager_delmaster()    - Space for the entire master journal file
+#
+#         sqlite3pager_open()  - The pager structure itself
+#         sqlite3_pagerget()   - Space for a new page
+#         pager_open_journal() - Pager.aInJournal[] bitmap
+#         sqlite3pager_write() - For in-memory databases only: history page and
+#                                statement history page.
+#         pager_stmt_begin()   - Pager.aInStmt[] bitmap
+#
+# None of the above are a huge problem. The most troublesome failures are the
+# transient malloc() calls in btree.c, which can occur during the tree-balance
+# operation. This means the tree being balanced will be internally inconsistent
+# after the malloc() fails. To avoid the corrupt tree being read by a
+# READ_UNCOMMITTED query, we have to make sure the transaction or statement
+# rollback occurs before sqlite3_step() returns, not during a subsequent
+# sqlite3_finalize().
+#--------------------------------------------------------------------------
+
+#--------------------------------------------------------------------------
+# NOTES ON TEST IMPLEMENTATION
+#
+# The tests in this file are implemented differently from those in other
+# files. Instead, tests are specified using three primitives: SQL, PREP and
+# TEST. Each primitive has a single argument. Primitives are processed in
+# the order they are specified in the file.
+#
+# A TEST primitive specifies a TCL script as its argument. When a TEST
+# directive is encountered the Tcl script is evaluated. Usually, this Tcl
+# script contains one or more calls to [do_test].
+#
+# A PREP primitive specifies an SQL script as its argument. When a PREP
+# directive is encountered the SQL is evaluated using database connection
+# [db].
+#
+# The SQL primitives are where the action happens. An SQL primitive must
+# contain a single, valid SQL statement as its argument. When an SQL
+# primitive is encountered, it is evaluated one or more times to test the
+# behaviour of the system when malloc() fails during preparation or
+# execution of said statement. The Nth time the statement is executed,
+# the Nth malloc is said to fail. The statement is executed until it
+# succeeds, i.e. (M+1) times, where M is the number of mallocs() required
+# to prepare and execute the statement.
+#
+# Each time an SQL statement fails, the driver program (see proc [run_test]
+# below) figures out if a transaction has been automatically rolled back.
+# If not, it executes any TEST block immediately proceeding the SQL
+# statement, then reexecutes the SQL statement with the next value of N.
+#
+# If a transaction has been automatically rolled back, then the driver
+# program executes all the SQL specified as part of SQL or PREP primitives
+# between the current SQL statement and the most recent "BEGIN". Any 
+# TEST block immediately proceeding the SQL statement is evaluated, and
+# then the SQL statement reexecuted with the incremented N value.
+#
+# That make any sense? If not, read the code in [run_test] and it might.
+#
+# Extra restriction imposed by the implementation:
+#
+# * If a PREP block starts a transaction, it must finish it.
+# * A PREP block may not close a transaction it did not start.
+#
+#--------------------------------------------------------------------------
+
+
+# These procs are used to build up a "program" in global variable
+# ::run_test_script. At the end of this file, the proc [run_test] is used
+# to execute the program (and all test cases contained therein).
+#
+set ::run_test_sql_id 0
+set ::run_test_script [list]
+proc TEST {id t} {lappend ::run_test_script -test [list $id $t]}
+proc PREP {p} {lappend ::run_test_script -prep [string trim $p]}
+proc DEBUG {s} {lappend ::run_test_script -debug $s}
+
+# SQL --
+#
+#     SQL ?-norollback? <sql-text>
+#
+# Add an 'SQL' primitive to the program (see notes above). If the -norollback
+# switch is present, then the statement is not allowed to automatically roll
+# back any active transaction if malloc() fails. It must rollback the statement
+# transaction only.
+#
+proc SQL  {a1 {a2 ""}} {
+  # An SQL primitive parameter is a list of three elements, an id, a boolean
+  # value indicating if the statement may cause transaction rollback when
+  # malloc() fails, and the sql statement itself.
+  set id [incr ::run_test_sql_id]
+  if {$a2 == ""} {
+    lappend ::run_test_script -sql [list $id true [string trim $a1]]
+  } else {
+    lappend ::run_test_script -sql [list $id false [string trim $a2]]
+  }
+}
+
+# TEST_AUTOCOMMIT --
+# 
+#     A shorthand test to see if a transaction is active or not. The first
+#     argument - $id - is the integer number of the test case. The second
+#     argument is either 1 or 0, the expected value of the auto-commit flag.
+#
+proc TEST_AUTOCOMMIT {id a} {
+    TEST $id "do_test \$testid { sqlite3_get_autocommit \$::DB } {$a}"
+}
+
+#--------------------------------------------------------------------------
+# Start of test program declaration
+#
+
+
+# Warm body test. A malloc() fails in the middle of a CREATE TABLE statement
+# in a single-statement transaction on an empty database. Not too much can go
+# wrong here.
+#
+TEST 1 {
+  do_test $testid {
+    execsql {SELECT tbl_name FROM sqlite_master;}
+  } {}
+}
+SQL { 
+  CREATE TABLE IF NOT EXISTS abc(a, b, c); 
+}
+TEST 2 {
+  do_test $testid.1 {
+    execsql {SELECT tbl_name FROM sqlite_master;}
+  } {abc}
+}
+
+# Insert a couple of rows into the table. each insert is in its own
+# transaction. test that the table is unpopulated before running the inserts
+# (and hence after each failure of the first insert), and that it has been
+# populated correctly after the final insert succeeds.
+#
+TEST 3 {
+  do_test $testid.2 {
+    execsql {SELECT * FROM abc}
+  } {}
+}
+SQL {INSERT INTO abc VALUES(1, 2, 3);}
+SQL {INSERT INTO abc VALUES(4, 5, 6);}
+SQL {INSERT INTO abc VALUES(7, 8, 9);}
+TEST 4 {
+  do_test $testid {
+    execsql {SELECT * FROM abc}
+  } {1 2 3 4 5 6 7 8 9}
+}
+
+# Test a CREATE INDEX statement. Because the table 'abc' is so small, the index
+# will all fit on a single page, so this doesn't test too much that the CREATE
+# TABLE statement didn't test. A few of the transient malloc()s in btree.c
+# perhaps.
+#
+SQL {CREATE INDEX abc_i ON abc(a, b, c);}
+TEST 4 {
+  do_test $testid {
+    execsql {
+      SELECT * FROM abc ORDER BY a DESC;
+    }
+  } {7 8 9 4 5 6 1 2 3}
+}
+
+# Test a DELETE statement. Also create a trigger and a view, just to make sure
+# these statements don't have any obvious malloc() related bugs in them. Note
+# that the test above will be executed each time the DELETE fails, so we're
+# also testing rollback of a DELETE from a table with an index on it.
+#
+SQL {DELETE FROM abc WHERE a > 2;}
+SQL {CREATE TRIGGER abc_t AFTER INSERT ON abc BEGIN SELECT 'trigger!'; END;}
+SQL {CREATE VIEW abc_v AS SELECT * FROM abc;}
+TEST 5 {
+  do_test $testid {
+    execsql {
+      SELECT name, tbl_name FROM sqlite_master ORDER BY name;
+      SELECT * FROM abc;
+    }
+  } {abc abc abc_i abc abc_t abc abc_v abc_v 1 2 3}
+}
+
+set sql {
+  BEGIN;DELETE FROM abc;
+}
+for {set i 1} {$i < 100} {incr i} {
+  set a $i
+  set b "String value $i"
+  set c [string repeat X $i]
+  append sql "INSERT INTO abc VALUES ($a, '$b', '$c');"
+}
+append sql {COMMIT;}
+PREP $sql
+
+SQL {
+  DELETE FROM abc WHERE oid IN (SELECT oid FROM abc ORDER BY random() LIMIT 5);
+}
+TEST 6 {
+  do_test $testid.1 {
+    execsql {SELECT count(*) FROM abc}
+  } {94}
+  do_test $testid.2 {
+    execsql {
+      SELECT min(
+          (oid == a) AND 'String value ' || a == b AND a == length(c) 
+      ) FROM abc;
+    }
+  } {1}
+}
+SQL {
+  DELETE FROM abc WHERE oid IN (SELECT oid FROM abc ORDER BY random() LIMIT 5);
+}
+TEST 7 {
+  do_test $testid {
+    execsql {SELECT count(*) FROM abc}
+  } {89}
+  do_test $testid {
+    execsql {
+      SELECT min(
+          (oid == a) AND 'String value ' || a == b AND a == length(c) 
+      ) FROM abc;
+    }
+  } {1}
+}
+SQL {
+  DELETE FROM abc WHERE oid IN (SELECT oid FROM abc ORDER BY random() LIMIT 5);
+}
+TEST 9 {
+  do_test $testid {
+    execsql {SELECT count(*) FROM abc}
+  } {84}
+  do_test $testid {
+    execsql {
+      SELECT min(
+          (oid == a) AND 'String value ' || a == b AND a == length(c) 
+      ) FROM abc;
+    }
+  } {1}
+}
+
+set padding [string repeat X 500]
+PREP [subst {
+  DROP TABLE abc;
+  CREATE TABLE abc(a PRIMARY KEY, padding, b, c);
+  INSERT INTO abc VALUES(0, '$padding', 2, 2);
+  INSERT INTO abc VALUES(3, '$padding', 5, 5);
+  INSERT INTO abc VALUES(6, '$padding', 8, 8);
+}]
+
+TEST 10 {
+  do_test $testid {
+    execsql {SELECT a, b, c FROM abc}
+  } {0 2 2 3 5 5 6 8 8}
+}
+
+SQL {BEGIN;}
+SQL {INSERT INTO abc VALUES(9, 'XXXXX', 11, 12);}
+TEST_AUTOCOMMIT 11 0
+SQL -norollback {UPDATE abc SET a = a + 1, c = c + 1;}
+TEST_AUTOCOMMIT 12 0
+SQL {DELETE FROM abc WHERE a = 10;}
+TEST_AUTOCOMMIT 13 0
+SQL {COMMIT;}
+
+TEST 14 {
+  do_test $testid.1 {
+    sqlite3_get_autocommit $::DB
+  } {1}
+  do_test $testid.2 {
+    execsql {SELECT a, b, c FROM abc}
+  } {1 2 3 4 5 6 7 8 9}
+}
+
+PREP [subst {
+  DROP TABLE abc;
+  CREATE TABLE abc(a, padding, b, c);
+  INSERT INTO abc VALUES(1, '$padding', 2, 3);
+  INSERT INTO abc VALUES(4, '$padding', 5, 6);
+  INSERT INTO abc VALUES(7, '$padding', 8, 9);
+  CREATE INDEX abc_i ON abc(a, padding, b, c);
+}]
+
+TEST 15 {
+  db eval {PRAGMA cache_size = 10}
+}
+
+SQL {BEGIN;}
+SQL -norllbck {INSERT INTO abc (oid, a, padding, b, c) SELECT NULL, * FROM abc}
+TEST 16 {
+  do_test $testid {
+    execsql {SELECT a, count(*) FROM abc GROUP BY a;}
+  } {1 2 4 2 7 2}
+}
+SQL -norllbck {INSERT INTO abc (oid, a, padding, b, c) SELECT NULL, * FROM abc}
+TEST 17 {
+  do_test $testid {
+    execsql {SELECT a, count(*) FROM abc GROUP BY a;}
+  } {1 4 4 4 7 4}
+}
+SQL -norllbck {INSERT INTO abc (oid, a, padding, b, c) SELECT NULL, * FROM abc}
+TEST 18 {
+  do_test $testid {
+    execsql {SELECT a, count(*) FROM abc GROUP BY a;}
+  } {1 8 4 8 7 8}
+}
+SQL -norllbck {INSERT INTO abc (oid, a, padding, b, c) SELECT NULL, * FROM abc}
+TEST 19 {
+  do_test $testid {
+    execsql {SELECT a, count(*) FROM abc GROUP BY a;}
+  } {1 16 4 16 7 16}
+}
+SQL {COMMIT;}
+TEST 21 {
+  do_test $testid {
+    execsql {SELECT a, count(*) FROM abc GROUP BY a;}
+  } {1 16 4 16 7 16}
+}
+
+SQL {BEGIN;}
+SQL {DELETE FROM abc WHERE oid %2}
+TEST 22 {
+  do_test $testid {
+    execsql {SELECT a, count(*) FROM abc GROUP BY a;}
+  } {1 8 4 8 7 8}
+}
+SQL {DELETE FROM abc}
+TEST 23 {
+  do_test $testid {
+    execsql {SELECT * FROM abc}
+  } {}
+}
+SQL {ROLLBACK;}
+TEST 24 {
+  do_test $testid {
+    execsql {SELECT a, count(*) FROM abc GROUP BY a;}
+  } {1 16 4 16 7 16}
+}
+
+# Test some schema modifications inside of a transaction. These should all
+# cause transaction rollback if they fail. Also query a view, to cover a bit
+# more code.
+#
+PREP {DROP VIEW abc_v;}
+TEST 25 {
+  do_test $testid {
+    execsql {
+      SELECT name, tbl_name FROM sqlite_master;
+    }
+  } {abc abc abc_i abc}
+}
+SQL {BEGIN;}
+SQL {CREATE TABLE def(d, e, f);}
+SQL {CREATE TABLE ghi(g, h, i);}
+TEST 26 {
+  do_test $testid {
+    execsql {
+      SELECT name, tbl_name FROM sqlite_master;
+    }
+  } {abc abc abc_i abc def def ghi ghi}
+}
+SQL {CREATE VIEW v1 AS SELECT * FROM def, ghi}
+SQL {CREATE UNIQUE INDEX ghi_i1 ON ghi(g);}
+TEST 27 {
+  do_test $testid {
+    execsql {
+      SELECT name, tbl_name FROM sqlite_master;
+    }
+  } {abc abc abc_i abc def def ghi ghi v1 v1 ghi_i1 ghi}
+}
+SQL {INSERT INTO def VALUES('a', 'b', 'c')}
+SQL {INSERT INTO def VALUES(1, 2, 3)}
+SQL -norollback {INSERT INTO ghi SELECT * FROM def}
+TEST 28 {
+  do_test $testid {
+    execsql {
+      SELECT * FROM def, ghi WHERE d = g;
+    }
+  } {a b c a b c 1 2 3 1 2 3}
+}
+SQL {COMMIT}
+TEST 29 {
+  do_test $testid {
+    execsql {
+      SELECT * FROM v1 WHERE d = g;
+    }
+  } {a b c a b c 1 2 3 1 2 3}
+}
+
+# Test a simple multi-file transaction 
+#
+forcedelete test2.db
+ifcapable attach {
+  SQL {ATTACH 'test2.db' AS aux;}
+  SQL {BEGIN}
+  SQL {CREATE TABLE aux.tbl2(x, y, z)}
+  SQL {INSERT INTO tbl2 VALUES(1, 2, 3)}
+  SQL {INSERT INTO def VALUES(4, 5, 6)}
+  TEST 30 {
+    do_test $testid {
+      execsql {
+        SELECT * FROM tbl2, def WHERE d = x;
+      }
+    } {1 2 3 1 2 3}
+  }
+  SQL {COMMIT}
+  TEST 31 {
+    do_test $testid {
+      execsql {
+        SELECT * FROM tbl2, def WHERE d = x;
+      }
+    } {1 2 3 1 2 3}
+  }
+}
+
+# Test what happens when a malloc() fails while there are other active
+# statements. This changes the way sqlite3VdbeHalt() works.
+TEST 32 {
+  if {![info exists ::STMT32]} {
+    set sql "SELECT name FROM sqlite_master"
+    set ::STMT32 [sqlite3_prepare $::DB $sql -1 DUMMY]
+    do_test $testid {
+      sqlite3_step $::STMT32
+    } {SQLITE_ROW}
+  }
+}
+SQL BEGIN
+TEST 33 { 
+  do_test $testid {
+    execsql {SELECT * FROM ghi}
+  } {a b c 1 2 3}
+}
+SQL -norollback { 
+  -- There is a unique index on ghi(g), so this statement may not cause
+  -- an automatic ROLLBACK. Hence the "-norollback" switch.
+  INSERT INTO ghi SELECT '2'||g, h, i FROM ghi;
+}
+TEST 34 {
+  if {[info exists ::STMT32]} {
+    do_test $testid {
+      sqlite3_finalize $::STMT32
+    } {SQLITE_OK}
+    unset ::STMT32
+  }
+}
+SQL COMMIT
+
+#
+# End of test program declaration
+#--------------------------------------------------------------------------
+
+proc run_test {arglist iRepeat {pcstart 0} {iFailStart 1}} {
+  if {[llength $arglist] %2} {
+    error "Uneven number of arguments to TEST"
+  }
+
+  for {set i 0} {$i < $pcstart} {incr i} {
+    set k2 [lindex $arglist [expr {2 * $i}]]
+    set v2 [lindex $arglist [expr {2 * $i + 1}]]
+    set ac [sqlite3_get_autocommit $::DB]        ;# Auto-Commit
+    switch -- $k2 {
+      -sql  {db eval [lindex $v2 2]}
+      -prep {db eval $v2}
+      -debug {eval $v2}
+    }
+    set nac [sqlite3_get_autocommit $::DB]       ;# New Auto-Commit 
+    if {$ac && !$nac} {set begin_pc $i}
+  }
+
+  db rollback_hook [list incr ::rollback_hook_count]
+
+  set iFail $iFailStart
+  set pc $pcstart
+  while {$pc*2 < [llength $arglist]} {
+    # Fetch the current instruction type and payload.
+    set k [lindex $arglist [expr {2 * $pc}]]
+    set v [lindex $arglist [expr {2 * $pc + 1}]]
+
+    # Id of this iteration:
+    set iterid "pc=$pc.iFail=$iFail$k"
+
+    switch -- $k {
+
+      -test { 
+        foreach {id script} $v {}
+        set testid "malloc3-(test $id).$iterid"
+        eval $script
+        incr pc
+      }
+
+      -sql {
+        set ::rollback_hook_count 0
+
+        set id [lindex $v 0]
+        set testid "malloc3-(integrity $id).$iterid"
+
+        set ac [sqlite3_get_autocommit $::DB]        ;# Auto-Commit
+        sqlite3_memdebug_fail $iFail -repeat 0
+        set rc [catch {db eval [lindex $v 2]} msg]   ;# True error occurs
+        set nac [sqlite3_get_autocommit $::DB]       ;# New Auto-Commit 
+
+        if {$rc != 0 && $nac && !$ac} {
+          # Before [db eval] the auto-commit flag was clear. Now it
+          # is set. Since an error occurred we assume this was not a
+          # commit - therefore a rollback occurred. Check that the
+          # rollback-hook was invoked.
+          do_test malloc3-rollback_hook_count.$iterid {
+            set ::rollback_hook_count
+          } {1}
+        }
+
+        set nFail [sqlite3_memdebug_fail -1 -benigncnt nBenign]
+        if {$rc == 0} {
+            # Successful execution of sql. The number of failed malloc()
+            # calls should be equal to the number of benign failures.
+            # Otherwise a malloc() failed and the error was not reported.
+            # 
+            set expr {$nFail!=$nBenign}
+            if {[expr $expr]} {
+              error "Unreported malloc() failure, test \"$testid\", $expr"
+            }
+
+            if {$ac && !$nac} {
+              # Before the [db eval] the auto-commit flag was set, now it
+              # is clear. We can deduce that a "BEGIN" statement has just
+              # been successfully executed.
+              set begin_pc $pc
+            } 
+
+            incr pc
+            set iFail 1
+            integrity_check $testid
+        } elseif {[regexp {.*out of memory} $msg] || [db errorcode] == 3082} {
+            # Out of memory error, as expected.
+            #
+            integrity_check $testid
+            incr iFail
+            if {$nac && !$ac} {
+              if {![lindex $v 1] && [db errorcode] != 3082} {
+                # error "Statement \"[lindex $v 2]\" caused a rollback"
+              }
+
+              for {set i $begin_pc} {$i < $pc} {incr i} {
+                set k2 [lindex $arglist [expr {2 * $i}]]
+                set v2 [lindex $arglist [expr {2 * $i + 1}]]
+                set catchupsql ""
+                switch -- $k2 {
+                  -sql  {set catchupsql [lindex $v2 2]}
+                  -prep {set catchupsql $v2}
+                }
+                db eval $catchupsql
+              }
+            }
+        } else {
+            error $msg
+        }
+
+        # back up to the previous "-test" block.
+        while {[lindex $arglist [expr {2 * ($pc - 1)}]] == "-test"} {
+          incr pc -1
+        }
+      }
+
+      -prep {
+        db eval $v
+        incr pc
+      }
+
+      -debug {
+        eval $v
+        incr pc
+      }
+
+      default { error "Unknown switch: $k" }
+    }
+  }
+}
+
+# Turn off the Tcl interface's prepared statement caching facility. Then
+# run the tests with "persistent" malloc failures.
+sqlite3_extended_result_codes db 1
+db cache size 0
+run_test $::run_test_script 1
+
+# Close and reopen the db.
+db close
+forcedelete test.db test.db-journal test2.db test2.db-journal
+sqlite3 db test.db
+sqlite3_extended_result_codes db 1
+set ::DB [sqlite3_connection_pointer db]
+
+# Turn off the Tcl interface's prepared statement caching facility in
+# the new connnection. Then run the tests with "transient" malloc failures.
+db cache size 0
+run_test $::run_test_script 0
+
+sqlite3_memdebug_fail -1
+finish_test
diff --git a/test/malloc4.test b/test/malloc4.test
new file mode 100644
index 0000000000000000000000000000000000000000..e2a616a5896c61b51bb176da7baab2fab4d60cbe
--- /dev/null
+++ b/test/malloc4.test
@@ -0,0 +1,194 @@
+# 2005 November 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains tests to ensure that the library handles malloc() failures
+# correctly. The emphasis in this file is on sqlite3_column_XXX() APIs.
+#
+# $Id: malloc4.test,v 1.10 2008/02/18 22:24:58 drh Exp $
+
+#---------------------------------------------------------------------------
+# NOTES ON EXPECTED BEHAVIOUR
+#
+# [193] When a memory allocation failure occurs during sqlite3_column_name(),
+#       sqlite3_column_name16(), sqlite3_column_decltype(), or
+#       sqlite3_column_decltype16() the function shall return NULL.
+#
+#---------------------------------------------------------------------------
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+
+# Only run these tests if memory debugging is turned on.
+if {!$MEMDEBUG} {
+   puts "Skipping malloc4 tests: not compiled with -DSQLITE_MEMDEBUG..."
+   finish_test
+   return
+}
+
+ifcapable !utf16 {
+  finish_test
+  return
+}
+
+proc do_stmt_test {id sql} {
+  set ::sql $sql
+  set go 1
+  for {set n 0} {$go} {incr n} {
+    set testid "malloc4-$id.$n"
+
+    # Prepare the statement
+    do_test ${testid}.1 {
+      set ::STMT [sqlite3_prepare $::DB $sql -1 TAIL]
+      expr [string length $::STMT] > 0
+    } {1}
+
+    # Set the Nth malloc() to fail.
+    sqlite3_memdebug_fail $n -repeat 0
+
+    # Test malloc failure in the _name(), _name16(), decltype() and
+    # decltype16() APIs. Calls that occur after the malloc() failure should
+    # return NULL. No error is raised though.
+    #
+    # ${testid}.2.1 - Call _name()
+    # ${testid}.2.2 - Call _name16()
+    # ${testid}.2.3 - Call _name()
+    # ${testid}.2.4 - Check that the return values of the above three calls are
+    #                 consistent with each other and with the simulated
+    #                 malloc() failures.
+    #
+    # Because the code that implements the _decltype() and _decltype16() APIs
+    # is the same as the _name() and _name16() implementations, we don't worry
+    # about explicitly testing them.
+    #
+    do_test ${testid}.2.1 {
+      set mf1 [expr [sqlite3_memdebug_pending] < 0]
+      set ::name8  [sqlite3_column_name $::STMT 0]
+      set mf2 [expr [sqlite3_memdebug_pending] < 0]
+      expr {$mf1 == $mf2 || $::name8 == ""}
+    } {1}
+    do_test ${testid}.2.2 {
+      set mf1 [expr [sqlite3_memdebug_pending] < 0]
+      set ::name16 [sqlite3_column_name16 $::STMT 0]
+      set ::name16 [encoding convertfrom unicode $::name16]
+      set ::name16 [string range $::name16 0 end-1]
+      set mf2 [expr [sqlite3_memdebug_pending] < 0]
+      expr {$mf1 == $mf2 || $::name16 == ""}
+    } {1}
+    do_test ${testid}.2.3 {
+      set mf1 [expr [sqlite3_memdebug_pending] < 0]
+      set ::name8_2 [sqlite3_column_name $::STMT 0]
+      set mf2 [expr [sqlite3_memdebug_pending] < 0]
+      expr {$mf1 == $mf2 || $::name8_2 == ""}
+    } {1}
+    set ::mallocFailed [expr [sqlite3_memdebug_pending] < 0]
+    do_test ${testid}.2.4 {
+      expr {
+        $::name8 == $::name8_2 && $::name16 == $::name8 && !$::mallocFailed ||
+        $::name8 == $::name8_2 && $::name16 == "" &&        $::mallocFailed ||
+        $::name8 == $::name16 && $::name8_2 == "" &&        $::mallocFailed ||
+        $::name8_2 == $::name16 && $::name8 == "" &&        $::mallocFailed
+      }
+    } {1}
+
+    # Step the statement so that we can call _text() and _text16().  Before
+    # running sqlite3_step(), make sure that malloc() is not about to fail.
+    # Memory allocation failures that occur within sqlite3_step() are tested
+    # elsewhere.
+    set mf [sqlite3_memdebug_pending]
+    sqlite3_memdebug_fail -1
+    do_test ${testid}.3 {
+      sqlite3_step $::STMT
+    } {SQLITE_ROW}
+    sqlite3_memdebug_fail $mf
+
+    # Test for malloc() failures within _text() and _text16().
+    #
+    do_test ${testid}.4.1 {
+      set ::text8 [sqlite3_column_text $::STMT 0]
+      set mf [expr [sqlite3_memdebug_pending] < 0 && !$::mallocFailed]
+      expr {$mf==0 || $::text8 == ""}
+    } {1}
+    do_test ${testid}.4.2 {
+      set ::text16 [sqlite3_column_text16 $::STMT 0]
+      set ::text16 [encoding convertfrom unicode $::text16]
+      set ::text16 [string range $::text16 0 end-1]
+      set mf [expr [sqlite3_memdebug_pending] < 0 && !$::mallocFailed]
+      expr {$mf==0 || $::text16 == ""}
+    } {1}
+    do_test ${testid}.4.3 {
+      set ::text8_2 [sqlite3_column_text $::STMT 0]
+      set mf [expr [sqlite3_memdebug_pending] < 0 && !$::mallocFailed]
+      expr {$mf==0 || $::text8_2 == "" || ($::text16 == "" && $::text8 != "")}
+    } {1}
+
+    # Test for malloc() failures within _int(), _int64() and _real(). The only
+    # way this can occur is if the string has to be translated from UTF-16 to
+    # UTF-8 before being converted to a numeric value.
+    do_test ${testid}.4.4.1 {
+      set mf [sqlite3_memdebug_pending]
+      sqlite3_memdebug_fail -1
+      sqlite3_column_text16 $::STMT 0
+      sqlite3_memdebug_fail $mf
+      sqlite3_column_int $::STMT 0
+    } {0}
+    do_test ${testid}.4.5 {
+      set mf [sqlite3_memdebug_pending]
+      sqlite3_memdebug_fail -1
+      sqlite3_column_text16 $::STMT 0
+      sqlite3_memdebug_fail $mf
+      sqlite3_column_int64 $::STMT 0
+    } {0}
+
+    do_test ${testid}.4.6 {
+      set mf [sqlite3_memdebug_pending]
+      sqlite3_memdebug_fail -1
+      sqlite3_column_text16 $::STMT 0
+      sqlite3_memdebug_fail $mf
+      sqlite3_column_double $::STMT 0
+    } {0.0}
+
+    set mallocFailedAfterStep [expr \
+      [sqlite3_memdebug_pending] < 0 && !$::mallocFailed
+    ]
+
+    sqlite3_memdebug_fail -1
+    # Test that if a malloc() failed the next call to sqlite3_step() returns
+    # SQLITE_ERROR. If malloc() did not fail, it should return SQLITE_DONE.
+    #
+    do_test ${testid}.5 {
+      sqlite3_step $::STMT
+    } [expr {$mallocFailedAfterStep ? "SQLITE_ERROR" : "SQLITE_DONE"}]
+
+    do_test ${testid}.6 {
+      sqlite3_finalize $::STMT
+    } [expr {$mallocFailedAfterStep ? "SQLITE_NOMEM" : "SQLITE_OK"}]
+
+    if {$::mallocFailed == 0 && $mallocFailedAfterStep == 0} {
+      sqlite3_memdebug_fail -1
+      set go 0
+    }
+  }
+}
+
+execsql {
+  CREATE TABLE tbl(
+    the_first_reasonably_long_column_name that_also_has_quite_a_lengthy_type
+  );
+  INSERT INTO tbl VALUES(
+    'An extra long string. Far too long to be stored in NBFS bytes.'
+  );
+}
+
+do_stmt_test 1 "SELECT * FROM tbl"
+
+sqlite3_memdebug_fail -1
+finish_test
diff --git a/test/malloc5.test b/test/malloc5.test
new file mode 100644
index 0000000000000000000000000000000000000000..906ac8983460534091afd25084ec4966468a2fe1
--- /dev/null
+++ b/test/malloc5.test
@@ -0,0 +1,421 @@
+# 2005 November 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains test cases focused on the two memory-management APIs, 
+# sqlite3_soft_heap_limit() and sqlite3_release_memory().
+#
+# Prior to version 3.6.2, calling sqlite3_release_memory() or exceeding
+# the configured soft heap limit could cause sqlite to upgrade database 
+# locks and flush dirty pages to the file system. As of 3.6.2, this is
+# no longer the case. In version 3.6.2, sqlite3_release_memory() only
+# reclaims clean pages. This test file has been updated accordingly.
+#
+# $Id: malloc5.test,v 1.22 2009/04/11 19:09:54 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+db close
+
+# Only run these tests if memory debugging is turned on.
+#
+if {!$MEMDEBUG} {
+   puts "Skipping malloc5 tests: not compiled with -DSQLITE_MEMDEBUG..."
+   finish_test
+   return
+}
+
+# Skip these tests if OMIT_MEMORY_MANAGEMENT was defined at compile time.
+ifcapable !memorymanage {
+   finish_test
+   return
+}
+
+# The sizes of memory allocations from system malloc() might vary,
+# depending on the memory allocator algorithms used.  The following
+# routine is designed to support answers that fall within a range
+# of values while also supplying easy-to-understand "expected" values
+# when errors occur.
+#
+proc value_in_range {target x args} {
+  set v [lindex $args 0]
+  if {$v!=""} {
+    if {$v<$target*$x} {return $v}
+    if {$v>$target/$x} {return $v}
+  }
+  return "number between [expr {int($target*$x)}] and [expr {int($target/$x)}]"
+}
+set mrange 0.98   ;#  plus or minus 2%
+
+test_set_config_pagecache 0 100
+
+sqlite3_soft_heap_limit 0
+sqlite3 db test.db
+# db eval {PRAGMA cache_size=1}
+
+do_test malloc5-1.1 {
+  # Simplest possible test. Call sqlite3_release_memory when there is exactly
+  # one unused page in a single pager cache. The page cannot be freed, as
+  # it is dirty. So sqlite3_release_memory() returns 0.
+  #
+  execsql {
+    PRAGMA auto_vacuum=OFF;
+    BEGIN;
+    CREATE TABLE abc(a, b, c);
+  }
+  sqlite3_release_memory
+} {0}
+
+do_test malloc5-1.2 {
+  # Test that the transaction started in the above test is still active.
+  # The lock on the database file should not have been upgraded (this was
+  # not the case before version 3.6.2).
+  #
+  sqlite3 db2 test.db
+  execsql {PRAGMA cache_size=2; SELECT * FROM sqlite_master } db2
+} {}
+do_test malloc5-1.3 {
+  # Call [sqlite3_release_memory] when there is exactly one unused page 
+  # in the cache belonging to db2.
+  #
+  set ::pgalloc [sqlite3_release_memory]
+  value_in_range 1288 0.75
+} [value_in_range 1288 0.75]
+
+do_test malloc5-1.4 {
+  # Commit the transaction and open a new one. Read 1 page into the cache.
+  # Because the page is not dirty, it is eligible for collection even
+  # before the transaction is concluded.
+  #
+  execsql {
+    COMMIT;
+    BEGIN;
+    SELECT * FROM abc;
+  }
+  value_in_range $::pgalloc $::mrange [sqlite3_release_memory]
+} [value_in_range $::pgalloc $::mrange]
+
+do_test malloc5-1.5 {
+  # Conclude the transaction opened in the previous [do_test] block. This
+  # causes another page (page 1) to become eligible for recycling.
+  #
+  execsql { COMMIT }
+  value_in_range $::pgalloc $::mrange [sqlite3_release_memory]
+} [value_in_range $::pgalloc $::mrange]
+
+do_test malloc5-1.6 {
+  # Manipulate the cache so that it contains two unused pages. One requires 
+  # a journal-sync to free, the other does not.
+  db2 close
+  execsql {
+    BEGIN;
+    CREATE TABLE def(d, e, f);
+    SELECT * FROM abc;
+  }
+  value_in_range $::pgalloc $::mrange [sqlite3_release_memory 500]
+} [value_in_range $::pgalloc $::mrange]
+do_test malloc5-1.7 {
+  # Database should not be locked this time. 
+  sqlite3 db2 test.db
+  catchsql { SELECT * FROM abc } db2
+} {0 {}}
+do_test malloc5-1.8 {
+  # Try to release another block of memory. This will fail as the only
+  # pages currently in the cache are dirty (page 3) or pinned (page 1).
+  db2 close
+  sqlite3_release_memory 500
+} 0
+do_test malloc5-1.8 {
+  # Database is still not locked.
+  #
+  sqlite3 db2 test.db
+  catchsql { SELECT * FROM abc } db2
+} {0 {}}
+do_test malloc5-1.9 {
+  execsql {
+    COMMIT;
+  }
+} {}
+
+do_test malloc5-2.1 {
+  # Put some data in tables abc and def. Both tables are still wholly 
+  # contained within their root pages.
+  execsql {
+    INSERT INTO abc VALUES(1, 2, 3);
+    INSERT INTO abc VALUES(4, 5, 6);
+    INSERT INTO def VALUES(7, 8, 9);
+    INSERT INTO def VALUES(10,11,12);
+  }
+} {}
+do_test malloc5-2.2 {
+  # Load the root-page for table def into the cache. Then query table abc. 
+  # Halfway through the query call sqlite3_release_memory(). The goal of this
+  # test is to make sure we don't free pages that are in use (specifically, 
+  # the root of table abc).
+  sqlite3_release_memory
+  set nRelease 0
+  execsql { 
+    BEGIN;
+    SELECT * FROM def;
+  }
+  set data [list]
+  db eval {SELECT * FROM abc} {
+    incr nRelease [sqlite3_release_memory]
+    lappend data $a $b $c
+  }
+  execsql {
+    COMMIT;
+  }
+  value_in_range $::pgalloc $::mrange $nRelease
+} [value_in_range $::pgalloc $::mrange]
+do_test malloc5-2.2.1 {
+  set data
+} {1 2 3 4 5 6}
+
+do_test malloc5-3.1 {
+  # Simple test to show that if two pagers are opened from within this
+  # thread, memory is freed from both when sqlite3_release_memory() is
+  # called.
+  execsql {
+    BEGIN;
+    SELECT * FROM abc;
+  }
+  execsql {
+    SELECT * FROM sqlite_master;
+    BEGIN;
+    SELECT * FROM def;
+  } db2
+  value_in_range [expr $::pgalloc*2] 0.99 [sqlite3_release_memory]
+} [value_in_range [expr $::pgalloc * 2] 0.99]
+do_test malloc5-3.2 {
+  concat \
+    [execsql {SELECT * FROM abc; COMMIT}] \
+    [execsql {SELECT * FROM def; COMMIT} db2]
+} {1 2 3 4 5 6 7 8 9 10 11 12}
+
+db2 close
+puts "Highwater mark: [sqlite3_memory_highwater]"
+
+# The following two test cases each execute a transaction in which 
+# 10000 rows are inserted into table abc. The first test case is used
+# to ensure that more than 1MB of dynamic memory is used to perform
+# the transaction. 
+#
+# The second test case sets the "soft-heap-limit" to 100,000 bytes (0.1 MB)
+# and tests to see that this limit is not exceeded at any point during 
+# transaction execution.
+#
+# Before executing malloc5-4.* we save the value of the current soft heap 
+# limit in variable ::soft_limit. The original value is restored after 
+# running the tests.
+#
+set ::soft_limit [sqlite3_soft_heap_limit -1]
+execsql {PRAGMA cache_size=2000}
+do_test malloc5-4.1 {
+  execsql {BEGIN;}
+  execsql {DELETE FROM abc;}
+  for {set i 0} {$i < 10000} {incr i} {
+    execsql "INSERT INTO abc VALUES($i, $i, '[string repeat X 100]');"
+  }
+  execsql {COMMIT;}
+  db cache flush
+  sqlite3_release_memory
+  sqlite3_memory_highwater 1
+  execsql {SELECT * FROM abc}
+  set nMaxBytes [sqlite3_memory_highwater 1]
+  puts -nonewline " (Highwater mark: $nMaxBytes) "
+  expr $nMaxBytes > 1000000
+} {1}
+do_test malloc5-4.2 {
+  db eval {PRAGMA cache_size=1}
+  db cache flush
+  sqlite3_release_memory
+  sqlite3_soft_heap_limit 200000
+  sqlite3_memory_highwater 1
+  execsql {SELECT * FROM abc}
+  set nMaxBytes [sqlite3_memory_highwater 1]
+  puts -nonewline " (Highwater mark: $nMaxBytes) "
+  expr $nMaxBytes <= 210000
+} {1}
+do_test malloc5-4.3 {
+  # Check that the content of table abc is at least roughly as expected.
+  execsql {
+    SELECT count(*), sum(a), sum(b) FROM abc;
+  }
+} [list 10000 [expr int(10000.0 * 4999.5)] [expr int(10000.0 * 4999.5)]]
+
+# Restore the soft heap limit.
+sqlite3_soft_heap_limit $::soft_limit
+
+# Test that there are no problems calling sqlite3_release_memory when
+# there are open in-memory databases.
+#
+# At one point these tests would cause a seg-fault.
+#
+do_test malloc5-5.1 {
+  db close
+  sqlite3 db :memory:
+  execsql {
+    BEGIN;
+    CREATE TABLE abc(a, b, c);
+    INSERT INTO abc VALUES('abcdefghi', 1234567890, NULL);
+    INSERT INTO abc SELECT * FROM abc;
+    INSERT INTO abc SELECT * FROM abc;
+    INSERT INTO abc SELECT * FROM abc;
+    INSERT INTO abc SELECT * FROM abc;
+    INSERT INTO abc SELECT * FROM abc;
+    INSERT INTO abc SELECT * FROM abc;
+    INSERT INTO abc SELECT * FROM abc;
+  }
+  sqlite3_release_memory
+} 0
+do_test malloc5-5.2 {
+  sqlite3_soft_heap_limit 5000
+  execsql {
+    COMMIT;
+    PRAGMA temp_store = memory;
+    SELECT * FROM abc ORDER BY a;
+  }
+  expr 1
+} {1}
+sqlite3_soft_heap_limit $::soft_limit
+
+#-------------------------------------------------------------------------
+# The following test cases (malloc5-6.*) test the new global LRU list
+# used to determine the pages to recycle when sqlite3_release_memory is
+# called and there is more than one pager open.
+#
+proc nPage {db} {
+  set bt [btree_from_db $db]
+  array set stats [btree_pager_stats $bt]
+  set stats(page)
+}
+db close
+forcedelete test.db test.db-journal test2.db test2.db-journal
+
+# This block of test-cases (malloc5-6.1.*) prepares two database files
+# for the subsequent tests.
+do_test malloc5-6.1.1 {
+  sqlite3 db test.db
+  execsql {
+    PRAGMA page_size=1024;
+    PRAGMA default_cache_size=2;
+  }
+  execsql {
+    PRAGMA temp_store = memory;
+    BEGIN;
+    CREATE TABLE abc(a PRIMARY KEY, b, c);
+    INSERT INTO abc VALUES(randstr(50,50), randstr(75,75), randstr(100,100));
+    INSERT INTO abc 
+        SELECT randstr(50,50), randstr(75,75), randstr(100,100) FROM abc;
+    INSERT INTO abc 
+        SELECT randstr(50,50), randstr(75,75), randstr(100,100) FROM abc;
+    INSERT INTO abc 
+        SELECT randstr(50,50), randstr(75,75), randstr(100,100) FROM abc;
+    INSERT INTO abc 
+        SELECT randstr(50,50), randstr(75,75), randstr(100,100) FROM abc;
+    INSERT INTO abc 
+        SELECT randstr(50,50), randstr(75,75), randstr(100,100) FROM abc;
+    INSERT INTO abc 
+        SELECT randstr(50,50), randstr(75,75), randstr(100,100) FROM abc;
+    COMMIT;
+  } 
+  forcecopy test.db test2.db
+  sqlite3 db2 test2.db
+  db2 eval {PRAGMA cache_size=2}
+  list \
+    [expr ([file size test.db]/1024)>20] [expr ([file size test2.db]/1024)>20]
+} {1 1}
+do_test malloc5-6.1.2 {
+  list [execsql {PRAGMA cache_size}] [execsql {PRAGMA cache_size} db2]
+} {2 2}
+
+do_test malloc5-6.2.1 {
+  execsql {SELECT * FROM abc} db2
+  execsql {SELECT * FROM abc} db
+  expr [nPage db] + [nPage db2]
+} {4}
+
+do_test malloc5-6.2.2 {
+  # If we now try to reclaim some memory, it should come from the db2 cache.
+  sqlite3_release_memory 3000
+  expr [nPage db] + [nPage db2]
+} {1}
+do_test malloc5-6.2.3 {
+  # Access the db2 cache again, so that all the db2 pages have been used
+  # more recently than all the db pages. Then try to reclaim 3000 bytes.
+  # This time, 3 pages should be pulled from the db cache.
+  execsql { SELECT * FROM abc } db2
+  sqlite3_release_memory 3000
+  expr [nPage db] + [nPage db2]
+} {0}
+
+do_test malloc5-6.3.1 {
+  # Now open a transaction and update 2 pages in the db2 cache. Then
+  # do a SELECT on the db cache so that all the db pages are more recently
+  # used than the db2 pages. When we try to free memory, SQLite should
+  # free the non-dirty db2 pages, then the db pages, then finally use
+  # sync() to free up the dirty db2 pages. The only page that cannot be
+  # freed is page1 of db2. Because there is an open transaction, the
+  # btree layer holds a reference to page 1 in the db2 cache.
+  #
+  # UPDATE: No longer. As release_memory() does not cause a sync()
+  execsql {
+    BEGIN;
+    UPDATE abc SET c = randstr(100,100) 
+    WHERE rowid = 1 OR rowid = (SELECT max(rowid) FROM abc);
+  } db2
+  execsql { SELECT * FROM abc } db
+  expr [nPage db] + [nPage db2]
+} {4}
+do_test malloc5-6.3.2 {
+  # Try to release 7700 bytes. This should release all the 
+  # non-dirty pages held by db2.
+  sqlite3_release_memory [expr 7*1132]
+  list [nPage db] [nPage db2]
+} {0 3}
+do_test malloc5-6.3.3 {
+  # Try to release another 1000 bytes. This should come fromt the db
+  # cache, since all three pages held by db2 are either in-use or diry.
+  sqlite3_release_memory 1000
+  list [nPage db] [nPage db2]
+} {0 3}
+do_test malloc5-6.3.4 {
+  # Now release 9900 more (about 9 pages worth). This should expunge
+  # the rest of the db cache. But the db2 cache remains intact, because
+  # SQLite tries to avoid calling sync().
+  if {$::tcl_platform(wordSize)==8} {
+    sqlite3_release_memory 10500
+  } else {
+    sqlite3_release_memory 9900
+  }
+  list [nPage db] [nPage db2]
+} {0 3}
+do_test malloc5-6.3.5 {
+  # But if we are really insistent, SQLite will consent to call sync()
+  # if there is no other option. UPDATE: As of 3.6.2, SQLite will not
+  # call sync() in this scenario. So no further memory can be reclaimed.
+  sqlite3_release_memory 1000
+  list [nPage db] [nPage db2]
+} {0 3}
+do_test malloc5-6.3.6 {
+  # The referenced page (page 1 of the db2 cache) will not be freed no
+  # matter how much memory we ask for:
+  sqlite3_release_memory 31459
+  list [nPage db] [nPage db2]
+} {0 3}
+
+db2 close
+
+sqlite3_soft_heap_limit $::soft_limit
+test_restore_config_pagecache
+finish_test
+catch {db close}
diff --git a/test/malloc6.test b/test/malloc6.test
new file mode 100644
index 0000000000000000000000000000000000000000..ded3d1e63347d96bc94511d6b72bc926ee712418
--- /dev/null
+++ b/test/malloc6.test
@@ -0,0 +1,55 @@
+# 2006 June 25
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file attempts to check the library in an out-of-memory situation.
+#
+# $Id: malloc6.test,v 1.5 2008/02/18 22:24:58 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+
+# Only run these tests if memory debugging is turned on.
+#
+if {!$MEMDEBUG} {
+   puts "Skipping malloc6 tests: not compiled with -DSQLITE_MEMDEBUG..."
+   finish_test
+   return
+}
+
+
+set sqlite_os_trace 0
+do_malloc_test malloc6-1 -tclprep {
+  db close
+} -tclbody {
+  if {[catch {sqlite3 db test.db}]} {
+    error "out of memory"
+  }
+  sqlite3_extended_result_codes db 1
+} -sqlbody {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE IF NOT EXISTS t1(
+     a int, b float, c double, d text, e varchar(20),
+     primary key(a,b,c)
+  );
+  CREATE TABLE IF NOT EXISTS t1(
+     a int, b float, c double, d text, e varchar(20),
+     primary key(a,b,c)
+  );
+  DROP TABLE IF EXISTS t1;
+} 
+
+# Ensure that no file descriptors were leaked.
+do_test malloc6-1.X {
+  catch {db close}
+  set sqlite_open_file_count
+} {0}
+
+finish_test
diff --git a/test/malloc7.test b/test/malloc7.test
new file mode 100644
index 0000000000000000000000000000000000000000..3e301c8018efd249592e72d3356023db04d2ddef
--- /dev/null
+++ b/test/malloc7.test
@@ -0,0 +1,48 @@
+# 2006 July 26
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file contains additional out-of-memory checks (see malloc.tcl)
+# added to expose a bug in out-of-memory handling for sqlite3_prepare16().
+#
+# $Id: malloc7.test,v 1.5 2008/02/18 22:24:58 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+
+# Only run these tests if memory debugging is turned on.
+#
+if {!$MEMDEBUG} {
+   puts "Skipping malloc7 tests: not compiled with -DSQLITE_MEMDEBUG..."
+   finish_test
+   return
+}
+
+
+do_malloc_test malloc7-1 -sqlprep {
+  CREATE TABLE t1(a,b,c,d);
+  CREATE INDEX i1 ON t1(b,c);
+} -tclbody {
+  set sql16 [encoding convertto unicode "SELECT * FROM sqlite_master"]
+  append sql16 "\00\00"
+  set nbyte [string length $sql16]
+  set ::STMT [sqlite3_prepare16 db $sql16 $nbyte DUMMY]
+  sqlite3_finalize $::STMT
+} 
+
+
+# Ensure that no file descriptors were leaked.
+do_test malloc-99.X {
+  catch {db close}
+  set sqlite_open_file_count
+} {0}
+
+puts open-file-count=$sqlite_open_file_count
+finish_test
diff --git a/test/malloc8.test b/test/malloc8.test
new file mode 100644
index 0000000000000000000000000000000000000000..9192eaf512ddea412f3f868e299fc678691471e1
--- /dev/null
+++ b/test/malloc8.test
@@ -0,0 +1,95 @@
+# 2007 April 25
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file contains additional out-of-memory checks (see malloc.tcl)
+# added to expose a bug in out-of-memory handling for sqlite3_value_text()
+#
+# $Id: malloc8.test,v 1.7 2008/02/18 22:24:58 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+
+# Only run these tests if memory debugging is turned on.
+#
+if {!$MEMDEBUG} {
+   puts "Skipping malloc8 tests: not compiled with -DSQLITE_MEMDEBUG..."
+   finish_test
+   return
+}
+
+
+# The setup is a database with UTF-16 encoding that contains a single
+# large string.  We will be running lots of queries against this 
+# database.  Because we will be extracting the string as UTF-8, there
+# is a type conversion that occurs and thus an opportunity for malloc()
+# to fail and for sqlite3_value_text() to return 0 even though
+# sqlite3_value_type() returns SQLITE_TEXT.
+#
+
+do_malloc_test malloc8-1 -sqlprep {
+  PRAGMA encoding='UTF-16';
+  CREATE TABLE t1(a);
+  INSERT INTO t1 
+  VALUES('0123456789aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ');
+} -sqlbody {
+  SELECT lower(a), upper(a), quote(a), trim(a), trim('x',a) FROM t1;
+}
+do_malloc_test malloc8-2 -sqlprep {
+  PRAGMA encoding='UTF-16';
+  CREATE TABLE t1(a);
+  INSERT INTO t1 
+  VALUES('0123456789aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ');
+} -sqlbody {
+  SELECT replace(a,'x','y'), replace('x',a,'y'), replace('x','y',a)
+    FROM t1;
+}
+do_malloc_test malloc8-3 -sqlprep {
+  PRAGMA encoding='UTF-16';
+  CREATE TABLE t1(a);
+  INSERT INTO t1 
+  VALUES('0123456789aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ');
+} -sqlbody {
+  SELECT length(a), substr(a, 4, 4) FROM t1;
+}
+ifcapable datetime {
+  do_malloc_test malloc8-4 -sqlprep {
+    PRAGMA encoding='UTF-16';
+    CREATE TABLE t1(a);
+    INSERT INTO t1 
+    VALUES('0123456789aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ');
+  } -sqlbody {
+    SELECT julianday(a,a) FROM t1;
+  }
+}
+do_malloc_test malloc8-5 -sqlprep {
+  PRAGMA encoding='UTF-16';
+  CREATE TABLE t1(a);
+  INSERT INTO t1 
+  VALUES('0123456789aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ');
+} -sqlbody {
+  SELECT 1 FROM t1 WHERE a LIKE 'hello' ESCAPE NULL;
+}
+do_malloc_test malloc8-6 -sqlprep {
+  PRAGMA encoding='UTF-16';
+  CREATE TABLE t1(a);
+  INSERT INTO t1 
+  VALUES('0123456789aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ');
+} -sqlbody {
+  SELECT hex(randomblob(100));
+}
+
+# Ensure that no file descriptors were leaked.
+do_test malloc-99.X {
+  catch {db close}
+  set sqlite_open_file_count
+} {0}
+
+finish_test
diff --git a/test/malloc9.test b/test/malloc9.test
new file mode 100644
index 0000000000000000000000000000000000000000..e142345bfa22f13b6fe057224bd83adf25b2e829
--- /dev/null
+++ b/test/malloc9.test
@@ -0,0 +1,51 @@
+# 2007 April 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file contains additional out-of-memory checks (see malloc.tcl)
+# added to expose a bug in out-of-memory handling for sqlite3_prepare().
+#
+# $Id: malloc9.test,v 1.5 2008/04/04 12:21:26 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+
+# Only run these tests if memory debugging is turned on.
+#
+if {!$MEMDEBUG} {
+   puts "Skipping malloc9 tests: not compiled with -DSQLITE_MEMDEBUG..."
+   finish_test
+   return
+}
+
+
+do_malloc_test malloc-9.1 -tclprep {
+  set sql {CREATE TABLE t1(x)}
+  set sqlbytes [string length $sql]
+  append sql {; INSERT INTO t1 VALUES(1)}
+} -tclbody {
+  if {[catch {sqlite3_prepare db $sql $sqlbytes TAIL} STMT]} {
+    set msg $STMT
+    set STMT {}
+    error $msg
+  }
+} -cleanup {
+  if {$STMT!=""} {
+    sqlite3_finalize $STMT
+  }
+}
+
+# Ensure that no file descriptors were leaked.
+do_test malloc9-99.X {
+  catch {db close}
+  set sqlite_open_file_count
+} {0}
+
+finish_test
diff --git a/test/mallocA.test b/test/mallocA.test
new file mode 100644
index 0000000000000000000000000000000000000000..ff91d2af2655930cf0dfc9835ece52dcc45c015b
--- /dev/null
+++ b/test/mallocA.test
@@ -0,0 +1,127 @@
+# 2007 April 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file contains additional out-of-memory checks (see malloc.tcl).
+#
+# $Id: mallocA.test,v 1.8 2008/02/18 22:24:58 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+set testprefix mallocA
+
+# Only run these tests if memory debugging is turned on.
+#
+if {!$MEMDEBUG} {
+   puts "Skipping mallocA tests: not compiled with -DSQLITE_MEMDEBUG..."
+   finish_test
+   return
+}
+
+# Construct a test database
+#
+forcedelete test.db.bu
+db eval {
+  CREATE TABLE t1(a COLLATE NOCASE,b,c);
+  INSERT INTO t1 VALUES(1,2,3);
+  INSERT INTO t1 VALUES(1,2,4);
+  INSERT INTO t1 VALUES(2,3,4);
+  CREATE INDEX t1i1 ON t1(a);
+  CREATE INDEX t1i2 ON t1(b,c);
+  CREATE TABLE t2(x,y,z);
+}
+db close
+copy_file test.db test.db.bu
+
+do_malloc_test mallocA-1 -testdb test.db.bu -sqlbody {
+  ANALYZE
+}
+do_malloc_test mallocA-1.1 -testdb test.db.bu -sqlbody {
+  ANALYZE t1
+}
+do_malloc_test mallocA-1.2 -testdb test.db.bu -sqlbody {
+  ANALYZE main
+}
+do_malloc_test mallocA-1.3 -testdb test.db.bu -sqlbody {
+  ANALYZE main.t1
+}
+
+ifcapable reindex {
+  do_malloc_test mallocA-2 -testdb test.db.bu -sqlbody {
+    REINDEX;
+  }
+  do_malloc_test mallocA-3 -testdb test.db.bu -sqlbody {
+    REINDEX t1;
+  }
+  do_malloc_test mallocA-4 -testdb test.db.bu -sqlbody {
+    REINDEX main.t1;
+  }
+  do_malloc_test mallocA-5 -testdb test.db.bu -sqlbody {
+    REINDEX nocase;
+  }
+}
+
+reset_db
+sqlite3_db_config_lookaside db 0 0 0
+do_execsql_test 6-prep {
+  CREATE TABLE t1(a, b);
+  CREATE INDEX i1 ON t1(a, b);
+  INSERT INTO t1 VALUES('abc', 'w'); -- rowid=1
+  INSERT INTO t1 VALUES('abc', 'x'); -- rowid=2
+  INSERT INTO t1 VALUES('abc', 'y'); -- rowid=3
+  INSERT INTO t1 VALUES('abc', 'z'); -- rowid=4
+
+  INSERT INTO t1 VALUES('def', 'w'); -- rowid=5
+  INSERT INTO t1 VALUES('def', 'x'); -- rowid=6
+  INSERT INTO t1 VALUES('def', 'y'); -- rowid=7
+  INSERT INTO t1 VALUES('def', 'z'); -- rowid=8
+
+  ANALYZE;
+}
+
+do_faultsim_test 6.1 -faults oom* -body {
+  execsql { SELECT rowid FROM t1 WHERE a='abc' AND b='x' }
+} -test {
+  faultsim_test_result [list 0 2]
+}
+do_faultsim_test 6.2 -faults oom* -body {
+  execsql { SELECT rowid FROM t1 WHERE a='abc' AND b<'y' }
+} -test {
+  faultsim_test_result [list 0 {1 2}]
+}
+
+do_execsql_test 7.0 {
+  PRAGMA cache_size = 5;
+}
+do_faultsim_test 7 -faults oom-trans* -prep {
+} -body {
+  execsql {
+    WITH r(x,y) AS (
+      SELECT 1, randomblob(100)
+      UNION ALL
+      SELECT x+1, randomblob(100) FROM r
+      LIMIT 1000
+    )
+    SELECT count(x), length(y) FROM r GROUP BY (x%5)
+  }
+} -test {
+  set res [list 200 100 200 100 200 100 200 100 200 100]
+  faultsim_test_result [list 0 $res]
+}
+
+
+# Ensure that no file descriptors were leaked.
+do_test malloc-99.X {
+  catch {db close}
+  set sqlite_open_file_count
+} {0}
+
+forcedelete test.db.bu
+finish_test
diff --git a/test/mallocAll.test b/test/mallocAll.test
new file mode 100644
index 0000000000000000000000000000000000000000..b1c94ea23aeafc353ec016b7ffc05454a8fa63ce
--- /dev/null
+++ b/test/mallocAll.test
@@ -0,0 +1,66 @@
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file runs all out-of-memory tests.
+#
+# $Id: mallocAll.test,v 1.1 2007/11/26 13:36:00 drh Exp $
+
+proc lshift {lvar} {
+  upvar $lvar l
+  set ret [lindex $l 0]
+  set l [lrange $l 1 end]
+  return $ret
+}
+while {[set arg [lshift argv]] != ""} {
+  switch -- $arg {
+    -sharedpagercache {
+      sqlite3_enable_shared_cache 1
+    }
+    default {
+      set argv [linsert $argv 0 $arg]
+      break
+    }
+  }
+}
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+rename finish_test really_finish_test
+proc finish_test {} {}
+set G(isquick) 1
+
+set EXCLUDE {
+  mallocAll.test
+}
+
+if {[sqlite3 -has-codec]} {
+  # lappend EXCLUDE \
+  #  conflict.test
+}
+
+
+# Files to include in the test.  If this list is empty then everything
+# that is not in the EXCLUDE list is run.
+#
+set INCLUDE {
+}
+
+foreach testfile [lsort -dictionary [glob $testdir/*malloc*.test]] {
+  set tail [file tail $testfile]
+  if {[lsearch -exact $EXCLUDE $tail]>=0} continue
+  if {[llength $INCLUDE]>0 && [lsearch -exact $INCLUDE $tail]<0} continue
+  source $testfile
+  catch {db close}
+  if {$sqlite_open_file_count>0} {
+    puts "$tail did not close all files: $sqlite_open_file_count"
+    fail_test $tail
+    set sqlite_open_file_count 0
+  }
+}
+source $testdir/misuse.test
+
+set sqlite_open_file_count 0
+really_finish_test
diff --git a/test/mallocB.test b/test/mallocB.test
new file mode 100644
index 0000000000000000000000000000000000000000..73468b5099f2967d2f34af11602fe9109489c1a1
--- /dev/null
+++ b/test/mallocB.test
@@ -0,0 +1,51 @@
+# 2007 May 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file contains additional out-of-memory checks (see malloc.tcl).
+# These were all discovered by fuzzy generation of SQL. Apart from
+# that they have little in common.
+#
+#
+# $Id: mallocB.test,v 1.9 2008/02/18 22:24:58 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+
+# Only run these tests if memory debugging is turned on.
+#
+if {!$MEMDEBUG} {
+   puts "Skipping mallocB tests: not compiled with -DSQLITE_MEMDEBUG..."
+   finish_test
+   return
+}
+source $testdir/malloc_common.tcl
+
+do_malloc_test mallocB-1 -sqlbody {SELECT - 456}
+do_malloc_test mallocB-2 -sqlbody {SELECT - 456.1}
+do_malloc_test mallocB-3 -sqlbody {SELECT random()}
+do_malloc_test mallocB-4 -sqlbody {SELECT length(zeroblob(1000))}
+ifcapable subquery {
+  do_malloc_test mallocB-5 -sqlbody {SELECT * FROM (SELECT 1) GROUP BY 1;}
+}
+
+# The following test checks that there are no resource leaks following a
+# malloc() failure in sqlite3_set_auxdata().
+#
+# Note: This problem was not discovered by fuzzy generation of SQL. Not
+# that it really matters.
+#
+do_malloc_test mallocB-6 -sqlbody { SELECT test_auxdata('hello world'); }
+
+do_malloc_test mallocB-7 -sqlbody {
+  SELECT strftime(hex(randomblob(50)) || '%Y', 'now')
+}
+
+finish_test
diff --git a/test/mallocC.test b/test/mallocC.test
new file mode 100644
index 0000000000000000000000000000000000000000..7943353cc7562863a17db061ec40e8464c255272
--- /dev/null
+++ b/test/mallocC.test
@@ -0,0 +1,122 @@
+# 2007 Aug 13
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+# This file tests aspects of the malloc failure while parsing
+# CREATE TABLE statements in auto_vacuum mode.
+#
+# $Id: mallocC.test,v 1.10 2009/04/11 16:27:50 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+
+# Only run these tests if memory debugging is turned on.
+#
+if {!$MEMDEBUG} {
+   puts "Skipping mallocC tests: not compiled with -DSQLITE_MEMDEBUG..."
+   finish_test
+   return
+}
+
+proc do_mallocC_test {tn args} {
+  array set ::mallocopts $args
+  #set sum [allcksum db]
+
+  for {set ::n 1} {true} {incr ::n} {
+
+    # Run the SQL. Malloc number $::n is set to fail. A malloc() failure
+    # may or may not be reported.
+    sqlite3_memdebug_fail $::n -repeat 1
+    do_test mallocC-$tn.$::n.1 {
+      set res [catchsql [string trim $::mallocopts(-sql)]]
+      set rc [expr { 
+        0==[string compare $res {1 {out of memory}}] ||
+        [db errorcode] == 3082 ||
+        0==[lindex $res 0]
+      }]
+      if {$rc!=1} {
+        puts "Error: $res"
+      }
+      set rc
+    } {1}
+
+    # If $::n is greater than the number of malloc() calls required to
+    # execute the SQL, then this test is finished. Break out of the loop.
+    set nFail [sqlite3_memdebug_fail -1]
+    if {$nFail==0} {
+      break
+    }
+
+    # Recover from the malloc failure.
+    #
+    # Update: The new malloc() failure handling means that a transaction may
+    # still be active even if a malloc() has failed. But when these tests were
+    # written this was not the case. So do a manual ROLLBACK here so that the
+    # tests pass.
+    do_test mallocC-$tn.$::n.2 {
+      catch {
+        execsql {
+          ROLLBACK;
+        }
+      }
+      expr 0
+    } {0}
+
+    # Checksum the database.
+    #do_test mallocC-$tn.$::n.3 {
+    #  allcksum db
+    #} $sum
+
+    #integrity_check mallocC-$tn.$::n.4
+  }
+  unset ::mallocopts
+}
+
+sqlite3_extended_result_codes db 1
+
+execsql {
+  PRAGMA auto_vacuum=1;
+  CREATE TABLE t0(a, b, c);
+}
+
+# The number of memory allocation failures is different on 64-bit
+# and 32-bit systems due to larger structures on 64-bit systems
+# overflowing the lookaside more often.  To debug problems, it is
+# sometimes helpful to reduce the size of the lookaside allocation
+# blocks.  But this is normally disabled.
+#
+if {0} {
+  db close
+  sqlite3_shutdown
+  sqlite3_config_lookaside 50 500
+  sqlite3_initialize
+  autoinstall_test_functions
+  sqlite3 db test.db
+}
+
+do_mallocC_test 1 -sql {
+  BEGIN;
+  -- Allocate 32 new root pages. This will exercise the 'extract specific 
+  -- page from the freelist' code when in auto-vacuum mode (see the
+  -- allocatePage() routine in btree.c).
+  CREATE TABLE t1(a UNIQUE, b UNIQUE, c UNIQUE);
+  CREATE TABLE t2(a UNIQUE, b UNIQUE, c UNIQUE);
+  CREATE TABLE t3(a UNIQUE, b UNIQUE, c UNIQUE);
+  CREATE TABLE t4(a UNIQUE, b UNIQUE, c UNIQUE);
+  CREATE TABLE t5(a UNIQUE, b UNIQUE, c UNIQUE);
+  CREATE TABLE t6(a UNIQUE, b UNIQUE, c UNIQUE);
+  CREATE TABLE t7(a UNIQUE, b UNIQUE, c UNIQUE);
+  CREATE TABLE t8(a UNIQUE, b UNIQUE, c UNIQUE);
+
+  ROLLBACK;
+}
+
+finish_test
diff --git a/test/mallocD.test b/test/mallocD.test
new file mode 100644
index 0000000000000000000000000000000000000000..08a2ba439967a07867fc1cc0f3c1527ec786ba15
--- /dev/null
+++ b/test/mallocD.test
@@ -0,0 +1,65 @@
+# 2007 Aug 29
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# $Id: mallocD.test,v 1.6 2008/02/18 22:24:58 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+
+# Only run these tests if memory debugging is turned on.
+#
+if {!$MEMDEBUG} {
+   puts "Skipping mallocD tests: not compiled with -DSQLITE_MEMDEBUG..."
+   finish_test
+   return
+}
+
+db close
+sqlite3_simulate_device -char atomic
+sqlite3 db test.db -vfs devsym
+
+set PREP { 
+  PRAGMA page_size = 1024;
+  CREATE TABLE abc(a, b, c);
+}
+
+do_malloc_test mallocD-1 -sqlprep $PREP -sqlbody { 
+  INSERT INTO abc VALUES(1, 2, 3);
+}
+
+do_malloc_test mallocD-2 -sqlprep $PREP -sqlbody {
+  BEGIN;
+  INSERT INTO abc VALUES(1, 2, 3);
+  INSERT INTO abc VALUES(4, 5, 6);
+  ROLLBACK;
+}
+
+do_malloc_test mallocD-3 -sqlprep $PREP -sqlbody {
+  BEGIN;
+  INSERT INTO abc VALUES(1, 2, 3);
+  INSERT INTO abc VALUES(4, 5, randstr(1500,1500));
+  COMMIT;
+}
+
+ifcapable attach {
+  do_malloc_test mallocD-4 -sqlprep $PREP -sqlbody {
+    ATTACH 'test2.db' AS aux;
+    BEGIN;
+    CREATE TABLE aux.def(d, e, f);
+    INSERT INTO abc VALUES(4, 5, 6);
+    COMMIT;
+  }
+}
+
+sqlite3_simulate_device -char {}
+
+finish_test
diff --git a/test/mallocE.test b/test/mallocE.test
new file mode 100644
index 0000000000000000000000000000000000000000..e87bc8b3afc3b86dc2483e392e47e3fe73571cf9
--- /dev/null
+++ b/test/mallocE.test
@@ -0,0 +1,48 @@
+# 2007 Aug 29
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This test script checks that tickets #2784 and #2789 have been fixed.
+# 
+# $Id: mallocE.test,v 1.3 2008/02/18 22:24:58 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+
+# Only run these tests if memory debugging is turned on.
+#
+if {!$MEMDEBUG} {
+   puts "Skipping mallocE tests: not compiled with -DSQLITE_MEMDEBUG..."
+   finish_test
+   return
+}
+
+# ticket #2784
+#
+set PREP { 
+  PRAGMA page_size = 1024;
+  CREATE TABLE t1(a, b, c);
+  CREATE TABLE t2(x, y, z);
+}
+do_malloc_test mallocE-1 -sqlprep $PREP -sqlbody { 
+  SELECT p, q FROM (SELECT a+b AS p, b+c AS q FROM t1, t2 WHERE c>5)
+              LEFT JOIN t2 ON p=x;
+}
+
+# Ticket #2789
+#
+do_malloc_test mallocE-2 -sqlprep $PREP -sqlbody { 
+  SELECT x, y2 FROM (SELECT a+b AS x, b+c AS y2 FROM t1, t2 WHERE c>5)
+              LEFT JOIN t2 USING(x) WHERE y2>11;
+}
+
+
+finish_test
diff --git a/test/mallocF.test b/test/mallocF.test
new file mode 100644
index 0000000000000000000000000000000000000000..0015005fec91a191bcd338f79e8e193d30aeb796
--- /dev/null
+++ b/test/mallocF.test
@@ -0,0 +1,76 @@
+# 2007 Aug 29
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This test script checks that tickets #2794, #2795, #2796, and #2797
+# have been fixed.
+# 
+# $Id: mallocF.test,v 1.4 2008/02/18 22:24:58 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+
+# Only run these tests if memory debugging is turned on.
+#
+if {!$MEMDEBUG} {
+   puts "Skipping mallocF tests: not compiled with -DSQLITE_MEMDEBUG..."
+   finish_test
+   return
+}
+
+# tickets #2794 and #2795 and #2797
+#
+set PREP {
+  CREATE TABLE t1(x,y);
+  INSERT INTO t1 VALUES('abc123', 5);
+  INSERT INTO t1 VALUES('xyz987', 42);
+}
+do_malloc_test malloeF-1 -sqlprep $PREP -sqlbody {
+  SELECT * FROM t1 WHERE x GLOB 'abc*'
+}
+
+# ticket #2796
+#
+set PREP {
+  CREATE TABLE t1(x PRIMARY KEY,y UNIQUE);
+  INSERT INTO t1 VALUES('abc123', 5);
+  INSERT INTO t1 VALUES('xyz987', 42);
+}
+do_malloc_test malloeF-2 -sqlprep $PREP -sqlbody {
+  SELECT x FROM t1
+   WHERE y=1 OR y=2 OR y=3 OR y=4 OR y=5
+      OR y=6 OR y=7 OR y=8 OR y=9 OR y=10
+      OR y=11 OR y=12 OR y=13 OR y=14 OR y=15
+      OR y=x
+}
+
+set PREP {
+  CREATE TABLE t1(x PRIMARY KEY,y UNIQUE);
+  INSERT INTO t1 VALUES('abc123', 5);
+  INSERT INTO t1 VALUES('xyz987', 42);
+}
+do_malloc_test malloeF-3 -sqlprep $PREP -sqlbody {
+  SELECT x FROM t1 WHERE y BETWEEN 10 AND 29
+}
+
+# Ticket #2843
+#
+set PREP {
+  CREATE TABLE t1(x);
+  CREATE TRIGGER r1 BEFORE INSERT ON t1 BEGIN
+    SELECT 'hello';
+  END;
+}
+do_malloc_test mallocF-4 -sqlprep $PREP -sqlbody {
+  INSERT INTO t1 VALUES(random());
+}
+
+finish_test
diff --git a/test/mallocG.test b/test/mallocG.test
new file mode 100644
index 0000000000000000000000000000000000000000..4f2395db9cdf1b4340ee236ce863876822b223cd
--- /dev/null
+++ b/test/mallocG.test
@@ -0,0 +1,73 @@
+# 2007 Aug 29
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This test script checks malloc failures in various obscure operations.
+# 
+# $Id: mallocG.test,v 1.5 2008/08/01 18:47:02 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+
+# Only run these tests if memory debugging is turned on.
+#
+if {!$MEMDEBUG} {
+   puts "Skipping mallocG tests: not compiled with -DSQLITE_MEMDEBUG..."
+   finish_test
+   return
+}
+
+# Malloc failures while opening a database connection.
+#
+do_malloc_test mallocG-1 -tclbody {
+  db close
+  sqlite3 db test.db
+}
+
+do_malloc_test mallocG-2 -sqlprep {
+  CREATE TABLE t1(x, y);
+  CREATE TABLE t2(x INTEGER PRIMARY KEY);
+} -sqlbody {
+  SELECT y FROM t1 WHERE x IN t2;
+}
+
+do_malloc_test mallocG-3 -sqlprep {
+  CREATE TABLE t1(x UNIQUE);
+  INSERT INTO t1 VALUES ('hello');
+  INSERT INTO t1 VALUES ('out there');
+} -sqlbody {
+  SELECT * FROM t1
+   WHERE x BETWEEN 'a' AND 'z'
+     AND x BETWEEN 'c' AND 'w'
+     AND x BETWEEN 'e' AND 'u'
+     AND x BETWEEN 'g' AND 'r'
+     AND x BETWEEN 'i' AND 'q'
+     AND x BETWEEN 'i' AND 'm'
+}
+
+ifcapable !utf16 {
+  finish_test
+  return
+}
+
+proc utf16 {utf8} {
+  set utf16 [encoding convertto unicode $utf8]
+  append utf16 "\x00\x00"
+  return $utf16
+}
+
+do_malloc_test mallocG-4 -tclbody {
+  set rc [sqlite3_complete16 [utf16 "SELECT * FROM t1;"]]
+  if {$rc==1} {set rc 0} {error "out of memory"}
+  set rc
+}
+
+finish_test
diff --git a/test/mallocH.test b/test/mallocH.test
new file mode 100644
index 0000000000000000000000000000000000000000..7017b381ab1d8595648ab3be0d28423072878350
--- /dev/null
+++ b/test/mallocH.test
@@ -0,0 +1,73 @@
+# 2008 August 01
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This test script checks malloc failures in various obscure operations.
+# 
+# $Id: mallocH.test,v 1.2 2008/08/01 20:10:09 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+
+# Malloc failures in journaling of in-memory databases.
+#
+do_malloc_test mallocH-1 -tclprep {
+  db close
+  sqlite3 db :memory:
+  db eval {
+    CREATE TABLE t1(x UNIQUE, y);
+    INSERT INTO t1 VALUES(1,2);
+  }
+} -sqlbody {
+  INSERT INTO t1 SELECT x+1, y+100 FROM t1;
+}
+
+# Malloc failures while parsing a CASE expression.
+#
+do_malloc_test mallocH-2 -sqlbody {
+   SELECT CASE WHEN 1 THEN 1 END;
+}
+
+# Malloc failures while parsing a EXISTS(SELECT ...)
+#
+do_malloc_test mallocH-3 -sqlbody {
+   SELECT 3+EXISTS(SELECT * FROM sqlite_master);
+}
+
+# Malloc failures within the replace() function.
+#
+do_malloc_test mallocH-3 -sqlbody {
+   SELECT replace('ababa','a','xyzzy');
+}
+
+# Malloc failures during EXPLAIN.
+#
+ifcapable explain {
+  do_malloc_test mallocH-4 -sqlprep {
+     CREATE TABLE abc(a PRIMARY KEY, b, c);
+  } -sqlbody {
+     EXPLAIN SELECT * FROM abc AS t2 WHERE rowid=1;
+     EXPLAIN QUERY PLAN SELECT * FROM abc AS t2 WHERE rowid=1;
+  }
+}
+
+# Malloc failure during integrity_check pragma.
+#
+do_malloc_test mallocH-5 -sqlprep {
+   CREATE TABLE t1(a PRIMARY KEY, b UNIQUE);
+   CREATE TABLE t2(x,y);
+   INSERT INTO t1 VALUES(1,2);
+   INSERT INTO t2 SELECT * FROM t1;
+} -sqlbody {
+   PRAGMA integrity_check;
+}
+
+finish_test
diff --git a/test/mallocI.test b/test/mallocI.test
new file mode 100644
index 0000000000000000000000000000000000000000..ee4a603dee17767ebf91b829f05662d963cc7b7d
--- /dev/null
+++ b/test/mallocI.test
@@ -0,0 +1,75 @@
+# 2008 August 01
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This test script checks malloc failures in various obscure operations.
+# 
+# $Id: mallocI.test,v 1.3 2009/08/10 04:26:39 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+
+# Malloc failures in a view.
+#
+do_malloc_test mallocI-1 -sqlprep {
+  CREATE TABLE t1(a,b,c,d);
+  CREATE VIEW v1 AS SELECT a*b, c*d FROM t1 ORDER BY b-d;
+} -sqlbody {
+  SELECT * FROM v1
+}
+
+# Malloc failure while trying to service a pragma on a TEMP database.
+#
+do_malloc_test mallocI-2 -sqlbody {
+  PRAGMA temp.page_size
+}
+
+# Malloc failure while creating a table from a SELECT statement.
+#
+do_malloc_test mallocI-3 -sqlprep {
+  CREATE TABLE t1(a,b,c);
+} -sqlbody {
+  CREATE TABLE t2 AS SELECT b,c FROM t1;
+}
+
+# This tests that a malloc failure that occurs while passing the schema
+# does not result in a SHARED lock being left on the database file.
+#
+do_malloc_test mallocI-4 -tclprep {
+  sqlite3 db2 test.db
+  db2 eval {
+    CREATE TABLE t1(a, b, c);
+    CREATE TABLE t2(a, b, c);
+  }
+} -sqlbody {
+  SELECT * FROM t1
+} -cleanup {
+  do_test mallocI-4.$::n.2 {
+    # If this INSERT is possible then [db] does not hold a shared lock
+    # on the database file.
+    catchsql { INSERT INTO t1 VALUES(1, 2, 3) } db2
+  } {0 {}}
+  catch {db2 close}
+}
+catch { db2 close }
+
+do_faultsim_test mallocI-5 -faults oom* -prep {
+  catch { db close }
+  sqlite3 db test.db
+  sqlite3_db_config_lookaside db 0 0 0
+} -body {
+  db eval { Select CAST(1 AS blob) }
+} -test {
+  faultsim_test_result {0 1}
+}
+
+
+finish_test
diff --git a/test/mallocJ.test b/test/mallocJ.test
new file mode 100644
index 0000000000000000000000000000000000000000..e63f6b794a7e541bd8838e4722c236ac1f99b390
--- /dev/null
+++ b/test/mallocJ.test
@@ -0,0 +1,73 @@
+# 2008 August 01
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This test script checks malloc failures in LIMIT operations for 
+# UPDATE/DELETE statements.
+# 
+# $Id: mallocJ.test,v 1.6 2009/01/09 02:49:32 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+
+ifcapable {update_delete_limit} {
+
+  do_malloc_test mallocJ-1 -sqlprep {
+    DROP TABLE IF EXISTS t1;
+    CREATE TABLE t1(x int, y int);
+    INSERT INTO t1 VALUES(1,1);
+    INSERT INTO t1 VALUES(1,2);
+    INSERT INTO t1 VALUES(1,2);
+    INSERT INTO t1 VALUES(2,1);
+    INSERT INTO t1 VALUES(2,2);
+    INSERT INTO t1 VALUES(2,3);
+  } -sqlbody {
+    UPDATE t1 SET x=1 ORDER BY y LIMIT 2 OFFSET 2;
+    UPDATE t1 SET x=2 WHERE y=1 ORDER BY y LIMIT 2 OFFSET 2;
+    DELETE FROM t1 WHERE x=1 ORDER BY y LIMIT 2 OFFSET 2;
+    DELETE FROM t1 ORDER BY y LIMIT 2 OFFSET 2;
+  }
+
+}
+
+# ticket #3467
+do_malloc_test mallocJ-2 -sqlprep {
+  CREATE TABLE t1(a,b);
+  INSERT INTO t1 VALUES(1,2);
+  PRAGMA vdbe_trace=ON;
+} -sqlbody {
+  SELECT a, b, 'abc' FROM t1
+    UNION
+    SELECT b, a, 'xyz' FROM t1
+    ORDER BY 2, 3;
+}
+
+# ticket #3478
+do_malloc_test mallocJ-3 -sqlbody {
+  EXPLAIN COMMIT
+}
+
+# ticket #3485
+do_malloc_test mallocJ-4 -sqlprep {
+  CREATE TABLE t1(a,b,c);
+  CREATE TABLE t2(x,y,z);
+} -sqlbody {
+  SELECT * FROM (SELECT a,b FROM t1 UNION ALL SELECT x, y FROM t2) ORDER BY 1
+}
+
+# coverage testing
+do_malloc_test mallocJ-5 -sqlprep {
+  CREATE TABLE t1(["a"]);
+} -sqlbody {
+  SELECT * FROM t1
+}
+
+finish_test
diff --git a/test/mallocK.test b/test/mallocK.test
new file mode 100644
index 0000000000000000000000000000000000000000..567a4c1f9de7d5e65531024227426c081d3debb7
--- /dev/null
+++ b/test/mallocK.test
@@ -0,0 +1,175 @@
+# 2008 August 01
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This test script checks malloc failures in WHERE clause analysis.
+# 
+# $Id: mallocK.test,v 1.3 2009/01/08 21:00:03 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+set testprefix mallocK
+
+set sql {SELECT * FROM t1, t2 WHERE (a=1 OR a=2)}
+for {set x 1} {$x<5} {incr x} {
+  append sql " AND b=y"
+  do_malloc_test mallocK-1.$x -sqlbody $sql -sqlprep {
+    CREATE TABLE t1(a,b);
+    CREATE TABLE t2(x,y);
+  }
+}
+
+set sql {SELECT * FROM t1 WHERE a GLOB 'xyz*' AND (a=1 OR a=2)}
+for {set x 1} {$x<5} {incr x} {
+  append sql " AND b!=$x"
+  do_malloc_test mallocK-2.$x -sqlbody $sql -sqlprep {
+    CREATE TABLE t1(a,b);
+  }
+}
+
+set sql {SELECT * FROM t1 WHERE a BETWEEN 5 AND 10}
+for {set x 1} {$x<5} {incr x} {
+  append sql " AND b=$x"
+  do_malloc_test mallocK-3.$x -sqlbody $sql -sqlprep {
+    CREATE TABLE t1(a,b);
+  }
+}
+
+set sql {SELECT * FROM t1 WHERE b=0}
+for {set x 1} {$x<5} {incr x} {
+  set term "(b=$x"
+  for {set y 0} {$y<$x} {incr y} {
+    append term " AND a!=$y"
+  }
+  append sql " OR $term)"
+  do_malloc_test mallocK-4.$x -sqlbody $sql -sqlprep {
+    CREATE TABLE t1(a,b);
+  }
+}
+
+ifcapable vtab {
+  set sql {SELECT * FROM t2 WHERE a MATCH 'xyz'}
+  for {set x 1} {$x<5} {incr x} {
+    append sql " AND b!=$x"
+    do_malloc_test mallocK-5.$x -sqlbody $sql -tclprep {
+      register_echo_module [sqlite3_connection_pointer db]
+      db eval {
+        CREATE TABLE t1(a,b);
+        CREATE VIRTUAL TABLE t2 USING echo(t1);
+      }
+    }
+  }
+}
+
+#-------------------------------------------------------------------------
+# Test that OOM errors are correctly handled by the code that uses stat4
+# data to estimate the number of rows visited by a skip-scan range query.
+#
+add_alignment_test_collations db
+do_execsql_test 6.0 {
+  CREATE TABLE t3(a TEXT, b TEXT COLLATE utf16_aligned, c);
+  INSERT INTO t3 VALUES('one', '.....', 0);
+  INSERT INTO t3 VALUES('one', '....x', 1);
+  INSERT INTO t3 VALUES('one', '...x.', 2);
+  INSERT INTO t3 VALUES('one', '...xx', 3);
+  INSERT INTO t3 VALUES('one', '..x..', 4);
+  INSERT INTO t3 VALUES('one', '..x.x', 5);
+  INSERT INTO t3 VALUES('one', '..xx.', 6);
+  INSERT INTO t3 VALUES('one', '..xxx', 7);
+  INSERT INTO t3 VALUES('one', '.x...', 8);
+  INSERT INTO t3 VALUES('one', '.x..x', 9);
+  INSERT INTO t3 VALUES('one', '.x.x.', 10);
+  INSERT INTO t3 VALUES('one', '.x.xx', 11);
+  INSERT INTO t3 VALUES('one', '.xx..', 12);
+  INSERT INTO t3 VALUES('one', '.xx.x', 13);
+  INSERT INTO t3 VALUES('one', '.xxx.', 14);
+  INSERT INTO t3 VALUES('one', '.xxxx', 15);
+
+  INSERT INTO t3 VALUES('two', 'x....', 16);
+  INSERT INTO t3 VALUES('two', 'x...x', 17);
+  INSERT INTO t3 VALUES('two', 'x..x.', 18);
+  INSERT INTO t3 VALUES('two', 'x..xx', 19);
+  INSERT INTO t3 VALUES('two', 'x.x..', 20);
+  INSERT INTO t3 VALUES('two', 'x.x.x', 21);
+  INSERT INTO t3 VALUES('two', 'x.xx.', 22);
+  INSERT INTO t3 VALUES('two', 'x.xxx', 23);
+  INSERT INTO t3 VALUES('two', 'xx...', 24);
+  INSERT INTO t3 VALUES('two', 'xx..x', 25);
+  INSERT INTO t3 VALUES('two', 'xx.x.', 26);
+  INSERT INTO t3 VALUES('two', 'xx.xx', 27);
+  INSERT INTO t3 VALUES('two', 'xxx..', 28);
+  INSERT INTO t3 VALUES('two', 'xxx.x', 29);
+  INSERT INTO t3 VALUES('two', 'xxxx.', 30);
+  INSERT INTO t3 VALUES('two', 'xxxxx', 31);
+
+  INSERT INTO t3 SELECT * FROM t3;
+
+  CREATE INDEX i3 ON t3(a, b);
+  ANALYZE;
+
+  SELECT 'x' > '.';
+} {1}
+
+ifcapable stat4 {
+  do_eqp_test 6.1 {
+    SELECT DISTINCT c FROM t3 WHERE b BETWEEN '.xx..' AND '.xxxx';
+  } [string map {"\n  " \n} {
+    QUERY PLAN
+    |--SEARCH t3 USING INDEX i3 (ANY(a) AND b>? AND b<?)
+    `--USE TEMP B-TREE FOR DISTINCT
+  }]
+}
+
+do_faultsim_test 6 -faults oom* -body {
+  db cache flush
+  db eval { SELECT DISTINCT c FROM t3 WHERE b BETWEEN '.xx..' AND '.xxxx' }
+} -test {
+  faultsim_test_result {0 {12 13 14 15}} 
+}
+
+do_execsql_test 7.1 {
+  CREATE TABLE x1(a INTEGER PRIMARY KEY, b);
+}
+do_faultsim_test 7.2 -faults oom* -body {
+  execsql { SELECT * FROM x1 WHERE a = (SELECT 1) }
+} -test {
+  faultsim_test_result [list 0 {}]
+}
+
+reset_db
+
+proc isqrt {i} { expr { int(sqrt($i)) } }
+db func isqrt isqrt
+
+do_execsql_test 8.0 {
+  PRAGMA encoding = 'utf-16';
+  CREATE TABLE x2(x TEXT, y TEXT);
+  WITH data(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM data
+  )
+  INSERT INTO x2 SELECT isqrt(i), isqrt(i) FROM data LIMIT 400;
+  CREATE INDEX x2x ON x2(x);
+  CREATE INDEX x2y ON x2(y);
+  ANALYZE;
+  DELETE FROM x2;
+}
+
+proc str {a} { return $a }
+db func str -deterministic str
+
+do_faultsim_test 8 -faults oom* -body {
+  execsql { SELECT * FROM x2 WHERE x = str('19') AND y = str('4') }
+} -test {
+  faultsim_test_result [list 0 {}]
+}
+
+
+finish_test
diff --git a/test/mallocL.test b/test/mallocL.test
new file mode 100644
index 0000000000000000000000000000000000000000..5c2a4ec0b0b7ab07a4a7a00229fbbdb7b5079fbb
--- /dev/null
+++ b/test/mallocL.test
@@ -0,0 +1,42 @@
+# 2014 August 12
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This test script is designed to show that the assert() fix at 
+# [f1cb48f412] really is required.
+# 
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+set testprefix mallocL
+
+do_test 1.0 {
+  for {set i 0} {$i < 40} {incr i} { 
+    lappend cols "c$i" 
+    lappend vals $i
+  }
+
+  execsql "CREATE TABLE t1([join $cols ,])"
+  execsql "CREATE INDEX i1 ON t1([join $cols ,])"
+  execsql "INSERT INTO t1 VALUES([join $vals ,])"
+} {}
+
+for {set j 1} {$j < 40} {incr j} {
+  set ::sql "SELECT DISTINCT [join [lrange $cols 0 $j] ,] FROM t1"
+  do_faultsim_test 1.$j -faults oom* -body {
+    execsql $::sql
+  } -test {
+    faultsim_test_result [list 0 [lrange $::vals 0 $::j]]
+  }
+}
+
+
+finish_test
diff --git a/test/mallocM.test b/test/mallocM.test
new file mode 100644
index 0000000000000000000000000000000000000000..4da3a9e112266acd257d8eff3202a322e846c614
--- /dev/null
+++ b/test/mallocM.test
@@ -0,0 +1,48 @@
+# 2017 March 13
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# Further OOM tests.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+set testprefix mallocM
+
+sqlite3_db_config_lookaside db 0 0 0
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(x);
+}
+do_faultsim_test 1 -faults oom* -body {
+  execsql {
+    SELECT 'abc' FROM ( SELECT 'xyz' FROM t1 WHERE (SELECT 1) )
+  }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+do_execsql_test 2.0.1 { SELECT instr(x'', x'') }         {1}
+do_execsql_test 2.0.2 { SELECT instr(x'12345678', x'') } {1}
+do_execsql_test 2.0.3 { SELECT instr(x'', x'1234') }     {0}
+
+do_faultsim_test 2.1 -faults oom* -body {
+  execsql { SELECT instr (x'00', zeroblob(1)) }
+} -test {
+  faultsim_test_result {0 1}
+}
+
+do_faultsim_test 2.2 -faults oom* -body {
+  execsql { SELECT instr (zeroblob(1), x'00') }
+} -test {
+  faultsim_test_result {0 1}
+}
+
+finish_test
diff --git a/test/malloc_common.tcl b/test/malloc_common.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..7d3c942f770a8ce9a7b12bdce7d3cb41dd94e2cd
--- /dev/null
+++ b/test/malloc_common.tcl
@@ -0,0 +1,698 @@
+# 2007 May 05
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains common code used by many different malloc tests
+# within the test suite.
+#
+# $Id: malloc_common.tcl,v 1.22 2008/09/23 16:41:30 danielk1977 Exp $
+
+# If we did not compile with malloc testing enabled, then do nothing.
+#
+ifcapable builtin_test {
+  set MEMDEBUG 1
+} else {
+  set MEMDEBUG 0
+  return 0
+}
+
+# Transient and persistent OOM errors:
+#
+set FAULTSIM(oom-transient) [list          \
+  -injectstart   {oom_injectstart 0}       \
+  -injectstop    oom_injectstop            \
+  -injecterrlist {{1 {out of memory}}}     \
+]
+set FAULTSIM(oom-persistent) [list         \
+  -injectstart {oom_injectstart 1000000}   \
+  -injectstop oom_injectstop               \
+  -injecterrlist {{1 {out of memory}}}     \
+]
+  
+# Transient and persistent IO errors:
+#
+set FAULTSIM(ioerr-transient) [list        \
+  -injectstart   {ioerr_injectstart 0}     \
+  -injectstop    ioerr_injectstop          \
+  -injecterrlist {{1 {disk I/O error}}}    \
+]
+set FAULTSIM(ioerr-persistent) [list       \
+  -injectstart   {ioerr_injectstart 1}     \
+  -injectstop    ioerr_injectstop          \
+  -injecterrlist {{1 {disk I/O error}}}    \
+]
+
+# SQLITE_FULL errors (always persistent):
+#
+set FAULTSIM(full) [list                   \
+  -injectinstall   fullerr_injectinstall   \
+  -injectstart     fullerr_injectstart     \
+  -injectstop      fullerr_injectstop      \
+  -injecterrlist   {{1 {database or disk is full}}} \
+  -injectuninstall fullerr_injectuninstall \
+]
+
+# Transient and persistent SHM errors:
+#
+set FAULTSIM(shmerr-transient) [list       \
+  -injectinstall   shmerr_injectinstall    \
+  -injectstart     {shmerr_injectstart 0}  \
+  -injectstop      shmerr_injectstop       \
+  -injecterrlist   {{1 {disk I/O error}}}  \
+  -injectuninstall shmerr_injectuninstall  \
+]
+set FAULTSIM(shmerr-persistent) [list      \
+  -injectinstall   shmerr_injectinstall    \
+  -injectstart     {shmerr_injectstart 1}  \
+  -injectstop      shmerr_injectstop       \
+  -injecterrlist   {{1 {disk I/O error}}}  \
+  -injectuninstall shmerr_injectuninstall  \
+]
+
+# Transient and persistent CANTOPEN errors:
+#
+set FAULTSIM(cantopen-transient) [list       \
+  -injectinstall   cantopen_injectinstall    \
+  -injectstart     {cantopen_injectstart 0}  \
+  -injectstop      cantopen_injectstop       \
+  -injecterrlist   {{1 {unable to open database file}}}  \
+  -injectuninstall cantopen_injectuninstall  \
+]
+set FAULTSIM(cantopen-persistent) [list      \
+  -injectinstall   cantopen_injectinstall    \
+  -injectstart     {cantopen_injectstart 1}  \
+  -injectstop      cantopen_injectstop       \
+  -injecterrlist   {{1 {unable to open database file}}}  \
+  -injectuninstall cantopen_injectuninstall  \
+]
+
+set FAULTSIM(interrupt) [list                 \
+  -injectinstall   interrupt_injectinstall    \
+  -injectstart     interrupt_injectstart      \
+  -injectstop      interrupt_injectstop       \
+  -injecterrlist   {{1 interrupted} {1 interrupt}}        \
+  -injectuninstall interrupt_injectuninstall  \
+]
+
+
+
+#--------------------------------------------------------------------------
+# Usage do_faultsim_test NAME ?OPTIONS...? 
+#
+#     -faults           List of fault types to simulate.
+#
+#     -prep             Script to execute before -body.
+#
+#     -body             Script to execute (with fault injection).
+#
+#     -test             Script to execute after -body.
+#
+#     -install          Script to execute after faultsim -injectinstall
+#
+#     -uninstall        Script to execute after faultsim -uninjectinstall
+#
+proc do_faultsim_test {name args} {
+  global FAULTSIM
+  
+  foreach n [array names FAULTSIM] {
+    if {$n != "interrupt"} {lappend DEFAULT(-faults) $n}
+  }
+  set DEFAULT(-prep)          ""
+  set DEFAULT(-body)          ""
+  set DEFAULT(-test)          ""
+  set DEFAULT(-install)       ""
+  set DEFAULT(-uninstall)     ""
+  set DEFAULT(-start)          1
+  set DEFAULT(-end)            0
+
+  fix_testname name
+
+  array set O [array get DEFAULT]
+  array set O $args
+  foreach o [array names O] {
+    if {[info exists DEFAULT($o)]==0} { error "unknown option: $o" }
+  }
+
+  set faultlist [list]
+  foreach f $O(-faults) {
+    set flist [array names FAULTSIM $f]
+    if {[llength $flist]==0} { error "unknown fault: $f" }
+    set faultlist [concat $faultlist $flist]
+  }
+
+  set testspec [list -prep $O(-prep) -body $O(-body) \
+      -test $O(-test) -install $O(-install) -uninstall $O(-uninstall) \
+      -start $O(-start) -end $O(-end)
+  ]
+  foreach f [lsort -unique $faultlist] {
+    eval do_one_faultsim_test "$name-$f" $FAULTSIM($f) $testspec
+  }
+}
+
+
+#-------------------------------------------------------------------------
+# Procedures to save and restore the current file-system state:
+#
+#   faultsim_save
+#   faultsim_restore
+#   faultsim_save_and_close
+#   faultsim_restore_and_reopen
+#   faultsim_delete_and_reopen
+#
+proc faultsim_save {args} { uplevel db_save $args }
+proc faultsim_save_and_close {args} { uplevel db_save_and_close $args }
+proc faultsim_restore {args} { uplevel db_restore $args }
+proc faultsim_restore_and_reopen {args} { 
+  uplevel db_restore_and_reopen $args 
+  sqlite3_extended_result_codes db 1
+  sqlite3_db_config_lookaside db 0 0 0
+}
+proc faultsim_delete_and_reopen {args} {
+  uplevel db_delete_and_reopen $args 
+  sqlite3_extended_result_codes db 1
+  sqlite3_db_config_lookaside db 0 0 0
+}
+
+proc faultsim_integrity_check {{db db}} {
+  set ic [$db eval { PRAGMA integrity_check }]
+  if {$ic != "ok"} { error "Integrity check: $ic" }
+}
+
+
+# The following procs are used as [do_one_faultsim_test] callbacks when 
+# injecting OOM faults into test cases.
+#
+proc oom_injectstart {nRepeat iFail} {
+  sqlite3_memdebug_fail [expr $iFail-1] -repeat $nRepeat
+}
+proc oom_injectstop {} {
+  sqlite3_memdebug_fail -1
+}
+
+# The following procs are used as [do_one_faultsim_test] callbacks when 
+# injecting IO error faults into test cases.
+#
+proc ioerr_injectstart {persist iFail} {
+  set ::sqlite_io_error_persist $persist
+  set ::sqlite_io_error_pending $iFail
+}
+proc ioerr_injectstop {} {
+  set sv $::sqlite_io_error_hit
+  set ::sqlite_io_error_persist 0
+  set ::sqlite_io_error_pending 0
+  set ::sqlite_io_error_hardhit 0
+  set ::sqlite_io_error_hit     0
+  set ::sqlite_io_error_pending 0
+  return $sv
+}
+
+# The following procs are used as [do_one_faultsim_test] callbacks when 
+# injecting shared-memory related error faults into test cases.
+#
+proc shmerr_injectinstall {} {
+  testvfs shmfault -default true
+  shmfault filter {xShmOpen xShmMap xShmLock}
+}
+proc shmerr_injectuninstall {} {
+  catch {db  close}
+  catch {db2 close}
+  shmfault delete
+}
+proc shmerr_injectstart {persist iFail} {
+  shmfault ioerr $iFail $persist
+}
+proc shmerr_injectstop {} {
+  shmfault ioerr
+}
+
+# The following procs are used as [do_one_faultsim_test] callbacks when 
+# injecting SQLITE_FULL error faults into test cases.
+#
+proc fullerr_injectinstall {} {
+  testvfs shmfault -default true
+}
+proc fullerr_injectuninstall {} {
+  catch {db  close}
+  catch {db2 close}
+  shmfault delete
+}
+proc fullerr_injectstart {iFail} {
+  shmfault full $iFail 1
+}
+proc fullerr_injectstop {} {
+  shmfault full
+}
+
+# The following procs are used as [do_one_faultsim_test] callbacks when 
+# injecting SQLITE_CANTOPEN error faults into test cases.
+#
+proc cantopen_injectinstall {} {
+  testvfs shmfault -default true
+}
+proc cantopen_injectuninstall {} {
+  catch {db  close}
+  catch {db2 close}
+  shmfault delete
+}
+proc cantopen_injectstart {persist iFail} {
+  shmfault cantopen $iFail $persist
+}
+proc cantopen_injectstop {} {
+  shmfault cantopen
+}
+
+# The following procs are used as [do_one_faultsim_test] callbacks 
+# when injecting SQLITE_INTERRUPT error faults into test cases.
+#
+proc interrupt_injectinstall {} {
+}
+proc interrupt_injectuninstall {} {
+}
+proc interrupt_injectstart {iFail} {
+  set ::sqlite_interrupt_count $iFail
+}
+proc interrupt_injectstop {} {
+  set res [expr $::sqlite_interrupt_count<=0]
+  set ::sqlite_interrupt_count 0
+  set res
+}
+
+# This command is not called directly. It is used by the 
+# [faultsim_test_result] command created by [do_faultsim_test] and used
+# by -test scripts.
+#
+proc faultsim_test_result_int {args} {
+  upvar testrc testrc testresult testresult testnfail testnfail
+  set t [list $testrc $testresult]
+  set r $args
+  if { ($testnfail==0 && $t != [lindex $r 0]) || [lsearch -exact $r $t]<0 } {
+    error "nfail=$testnfail rc=$testrc result=$testresult list=$r"
+  }
+}
+
+#--------------------------------------------------------------------------
+# Usage do_one_faultsim_test NAME ?OPTIONS...? 
+#
+# The first argument, <test number>, is used as a prefix of the test names
+# taken by tests executed by this command. Options are as follows. All
+# options take a single argument.
+#
+#     -injectstart      Script to enable fault-injection.
+#
+#     -injectstop       Script to disable fault-injection.
+#
+#     -injecterrlist    List of generally acceptable test results (i.e. error
+#                       messages). Example: [list {1 {out of memory}}]
+#
+#     -injectinstall
+#
+#     -injectuninstall
+#
+#     -prep             Script to execute before -body.
+#
+#     -body             Script to execute (with fault injection).
+#
+#     -test             Script to execute after -body.
+#
+#     -start            Index of first fault to inject (default 1)
+#
+proc do_one_faultsim_test {testname args} {
+
+  set DEFAULT(-injectstart)     "expr"
+  set DEFAULT(-injectstop)      "expr 0"
+  set DEFAULT(-injecterrlist)   [list]
+  set DEFAULT(-injectinstall)   ""
+  set DEFAULT(-injectuninstall) ""
+  set DEFAULT(-prep)            ""
+  set DEFAULT(-body)            ""
+  set DEFAULT(-test)            ""
+  set DEFAULT(-install)         ""
+  set DEFAULT(-uninstall)       ""
+  set DEFAULT(-start)           1
+  set DEFAULT(-end)             0
+
+  array set O [array get DEFAULT]
+  array set O $args
+  foreach o [array names O] {
+    if {[info exists DEFAULT($o)]==0} { error "unknown option: $o" }
+  }
+
+  proc faultsim_test_proc {testrc testresult testnfail} $O(-test)
+  proc faultsim_test_result {args} "
+    uplevel faultsim_test_result_int \$args [list $O(-injecterrlist)]
+  "
+
+  eval $O(-injectinstall)
+  eval $O(-install)
+
+  set stop 0
+  for {set iFail $O(-start)}                        \
+      {!$stop && ($O(-end)==0 || $iFail<=$O(-end))} \
+      {incr iFail}                                  \
+  {
+
+    # Evaluate the -prep script.
+    #
+    eval $O(-prep)
+
+    # Start the fault-injection. Run the -body script. Stop the fault
+    # injection. Local var $nfail is set to the total number of faults 
+    # injected into the system this trial.
+    #
+    eval $O(-injectstart) $iFail
+    set rc [catch $O(-body) res]
+    set nfail [eval $O(-injectstop)]
+
+    # Run the -test script. If it throws no error, consider this trial
+    # sucessful. If it does throw an error, cause a [do_test] test to
+    # fail (and print out the unexpected exception thrown by the -test
+    # script at the same time).
+    #
+    set rc [catch [list faultsim_test_proc $rc $res $nfail] res]
+    if {$rc == 0} {set res ok}
+    do_test $testname.$iFail [list list $rc $res] {0 ok}
+
+    # If no faults where injected this trial, don't bother running
+    # any more. This test is finished.
+    #
+    if {$nfail==0} { set stop 1 }
+  }
+
+  eval $O(-uninstall)
+  eval $O(-injectuninstall)
+}
+
+# Usage: do_malloc_test <test number> <options...>
+#
+# The first argument, <test number>, is an integer used to name the
+# tests executed by this proc. Options are as follows:
+#
+#     -tclprep          TCL script to run to prepare test.
+#     -sqlprep          SQL script to run to prepare test.
+#     -tclbody          TCL script to run with malloc failure simulation.
+#     -sqlbody          TCL script to run with malloc failure simulation.
+#     -cleanup          TCL script to run after the test.
+#
+# This command runs a series of tests to verify SQLite's ability
+# to handle an out-of-memory condition gracefully. It is assumed
+# that if this condition occurs a malloc() call will return a
+# NULL pointer. Linux, for example, doesn't do that by default. See
+# the "BUGS" section of malloc(3).
+#
+# Each iteration of a loop, the TCL commands in any argument passed
+# to the -tclbody switch, followed by the SQL commands in any argument
+# passed to the -sqlbody switch are executed. Each iteration the
+# Nth call to sqliteMalloc() is made to fail, where N is increased
+# each time the loop runs starting from 1. When all commands execute
+# successfully, the loop ends.
+#
+proc do_malloc_test {tn args} {
+  array unset ::mallocopts 
+  array set ::mallocopts $args
+
+  if {[string is integer $tn]} {
+    set tn malloc-$tn
+    catch { set tn $::testprefix-$tn }
+  }
+  if {[info exists ::mallocopts(-start)]} {
+    set start $::mallocopts(-start)
+  } else {
+    set start 0
+  }
+  if {[info exists ::mallocopts(-end)]} {
+    set end $::mallocopts(-end)
+  } else {
+    set end 50000
+  }
+  save_prng_state
+
+  foreach ::iRepeat {0 10000000} {
+    set ::go 1
+    for {set ::n $start} {$::go && $::n <= $end} {incr ::n} {
+
+      # If $::iRepeat is 0, then the malloc() failure is transient - it
+      # fails and then subsequent calls succeed. If $::iRepeat is 1, 
+      # then the failure is persistent - once malloc() fails it keeps
+      # failing.
+      #
+      set zRepeat "transient"
+      if {$::iRepeat} {set zRepeat "persistent"}
+      restore_prng_state
+      foreach file [glob -nocomplain test.db-mj*] {forcedelete $file}
+
+      do_test ${tn}.${zRepeat}.${::n} {
+  
+        # Remove all traces of database files test.db and test2.db 
+        # from the file-system. Then open (empty database) "test.db" 
+        # with the handle [db].
+        # 
+        catch {db close} 
+        catch {db2 close} 
+        forcedelete test.db
+        forcedelete test.db-journal
+        forcedelete test.db-wal
+        forcedelete test2.db
+        forcedelete test2.db-journal
+        forcedelete test2.db-wal
+        if {[info exists ::mallocopts(-testdb)]} {
+          copy_file $::mallocopts(-testdb) test.db
+        }
+        catch { sqlite3 db test.db }
+        if {[info commands db] ne ""} {
+          sqlite3_extended_result_codes db 1
+        }
+        sqlite3_db_config_lookaside db 0 0 0
+  
+        # Execute any -tclprep and -sqlprep scripts.
+        #
+        if {[info exists ::mallocopts(-tclprep)]} {
+          eval $::mallocopts(-tclprep)
+        }
+        if {[info exists ::mallocopts(-sqlprep)]} {
+          execsql $::mallocopts(-sqlprep)
+        }
+  
+        # Now set the ${::n}th malloc() to fail and execute the -tclbody 
+        # and -sqlbody scripts.
+        #
+        sqlite3_memdebug_fail $::n -repeat $::iRepeat
+        set ::mallocbody {}
+        if {[info exists ::mallocopts(-tclbody)]} {
+          append ::mallocbody "$::mallocopts(-tclbody)\n"
+        }
+        if {[info exists ::mallocopts(-sqlbody)]} {
+          append ::mallocbody "db eval {$::mallocopts(-sqlbody)}"
+        }
+
+        # The following block sets local variables as follows:
+        #
+        #     isFail  - True if an error (any error) was reported by sqlite.
+        #     nFail   - The total number of simulated malloc() failures.
+        #     nBenign - The number of benign simulated malloc() failures.
+        #
+        set isFail [catch $::mallocbody msg]
+        set nFail [sqlite3_memdebug_fail -1 -benigncnt nBenign]
+        # puts -nonewline " (isFail=$isFail nFail=$nFail nBenign=$nBenign) "
+
+        # If one or more mallocs failed, run this loop body again.
+        #
+        set go [expr {$nFail>0}]
+
+        if {($nFail-$nBenign)==0} {
+          if {$isFail} {
+            set v2 $msg
+          } else {
+            set isFail 1
+            set v2 1
+          }
+        } elseif {!$isFail} {
+          set v2 $msg
+        } elseif {
+          [info command db]=="" || 
+          [db errorcode]==7 ||
+          $msg=="out of memory"
+        } {
+          set v2 1
+        } else {
+          set v2 $msg
+          puts [db errorcode]
+        }
+        lappend isFail $v2
+      } {1 1}
+  
+      if {[info exists ::mallocopts(-cleanup)]} {
+        catch [list uplevel #0 $::mallocopts(-cleanup)] msg
+      }
+    }
+  }
+  unset ::mallocopts
+  sqlite3_memdebug_fail -1
+}
+
+
+#-------------------------------------------------------------------------
+# This proc is used to test a single SELECT statement. Parameter $name is
+# passed a name for the test case (i.e. "fts3_malloc-1.4.1") and parameter
+# $sql is passed the text of the SELECT statement. Parameter $result is
+# set to the expected output if the SELECT statement is successfully
+# executed using [db eval].
+#
+# Example:
+#
+#   do_select_test testcase-1.1 "SELECT 1+1, 1+2" {1 2}
+#
+# If global variable DO_MALLOC_TEST is set to a non-zero value, or if
+# it is not defined at all, then OOM testing is performed on the SELECT
+# statement. Each OOM test case is said to pass if either (a) executing
+# the SELECT statement succeeds and the results match those specified
+# by parameter $result, or (b) TCL throws an "out of memory" error.
+#
+# If DO_MALLOC_TEST is defined and set to zero, then the SELECT statement
+# is executed just once. In this case the test case passes if the results
+# match the expected results passed via parameter $result.
+#
+proc do_select_test {name sql result} {
+  uplevel [list doPassiveTest 0 $name $sql [list 0 [list {*}$result]]]
+}
+
+proc do_restart_select_test {name sql result} {
+  uplevel [list doPassiveTest 1 $name $sql [list 0 $result]]
+}
+
+proc do_error_test {name sql error} {
+  uplevel [list doPassiveTest 0 $name $sql [list 1 $error]]
+}
+
+proc doPassiveTest {isRestart name sql catchres} {
+  if {![info exists ::DO_MALLOC_TEST]} { set ::DO_MALLOC_TEST 1 }
+
+  if {[info exists ::testprefix] 
+   && [string is integer [string range $name 0 0]]
+  } {
+    set name $::testprefix.$name
+  }
+
+  switch $::DO_MALLOC_TEST {
+    0 { # No malloc failures.
+      do_test $name [list set {} [uplevel [list catchsql $sql]]] $catchres
+      return
+    }
+    1 { # Simulate transient failures.
+      set nRepeat 1
+      set zName "transient"
+      set nStartLimit 100000
+      set nBackup 1
+    }
+    2 { # Simulate persistent failures.
+      set nRepeat 1
+      set zName "persistent"
+      set nStartLimit 100000
+      set nBackup 1
+    }
+    3 { # Simulate transient failures with extra brute force.
+      set nRepeat 100000
+      set zName "ridiculous"
+      set nStartLimit 1
+      set nBackup 10
+    }
+  }
+
+  # The set of acceptable results from running [catchsql $sql].
+  #
+  set answers [list {1 {out of memory}} $catchres]
+  set str [join $answers " OR "]
+
+  set nFail 1
+  for {set iLimit $nStartLimit} {$nFail} {incr iLimit} {
+    for {set iFail 1} {$nFail && $iFail<=$iLimit} {incr iFail} {
+      for {set iTest 0} {$iTest<$nBackup && ($iFail-$iTest)>0} {incr iTest} {
+
+        if {$isRestart} { sqlite3 db test.db }
+
+        sqlite3_memdebug_fail [expr $iFail-$iTest] -repeat $nRepeat
+        set res [uplevel [list catchsql $sql]]
+        if {[lsearch -exact $answers $res]>=0} { set res $str }
+        set testname "$name.$zName.$iFail"
+        do_test "$name.$zName.$iLimit.$iFail" [list set {} $res] $str
+
+        set nFail [sqlite3_memdebug_fail -1 -benigncnt nBenign]
+      }
+    }
+  }
+}
+
+
+#-------------------------------------------------------------------------
+# Test a single write to the database. In this case a  "write" is a 
+# DELETE, UPDATE or INSERT statement.
+#
+# If OOM testing is performed, there are several acceptable outcomes:
+#
+#   1) The write succeeds. No error is returned.
+#
+#   2) An "out of memory" exception is thrown and:
+#
+#     a) The statement has no effect, OR
+#     b) The current transaction is rolled back, OR
+#     c) The statement succeeds. This can only happen if the connection
+#        is in auto-commit mode (after the statement is executed, so this
+#        includes COMMIT statements).
+#
+# If the write operation eventually succeeds, zero is returned. If a
+# transaction is rolled back, non-zero is returned.
+#
+# Parameter $name is the name to use for the test case (or test cases).
+# The second parameter, $tbl, should be the name of the database table
+# being modified. Parameter $sql contains the SQL statement to test.
+#
+proc do_write_test {name tbl sql} {
+  if {![info exists ::DO_MALLOC_TEST]} { set ::DO_MALLOC_TEST 1 }
+
+  # Figure out an statement to get a checksum for table $tbl.
+  db eval "SELECT * FROM $tbl" V break
+  set cksumsql "SELECT md5sum([join [concat rowid $V(*)] ,]) FROM $tbl"
+
+  # Calculate the initial table checksum.
+  set cksum1 [db one $cksumsql]
+
+  if {$::DO_MALLOC_TEST } {
+    set answers [list {1 {out of memory}} {0 {}}]
+    lappend answers [list 1 {unable to open a temporary database file for storing temporary tables}]
+    if {$::DO_MALLOC_TEST==1} {
+      set modes {100000 persistent}
+    } else {
+      set modes {1 transient}
+    }
+  } else {
+    set answers [list {0 {}}]
+    set modes [list 0 nofail]
+  }
+  set str [join $answers " OR "]
+
+  foreach {nRepeat zName} $modes {
+    for {set iFail 1} 1 {incr iFail} {
+      if {$::DO_MALLOC_TEST} {sqlite3_memdebug_fail $iFail -repeat $nRepeat}
+
+      set res [uplevel [list catchsql $sql]]
+      set nFail [sqlite3_memdebug_fail -1 -benigncnt nBenign]
+      if {$nFail==0} {
+        do_test $name.$zName.$iFail [list set {} $res] {0 {}}
+        return
+      } else {
+        if {[lsearch $answers $res]>=0} {
+          set res $str
+        }
+        do_test $name.$zName.$iFail [list set {} $res] $str
+        set cksum2 [db one $cksumsql]
+        if {$cksum1 != $cksum2} return
+      }
+    }
+  }
+}
diff --git a/test/malloctraceviewer.tcl b/test/malloctraceviewer.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..4517fdc361cfbfc2b44fdd12aa64c1ed8da3b1d9
--- /dev/null
+++ b/test/malloctraceviewer.tcl
@@ -0,0 +1,253 @@
+
+package require sqlite3
+package require Tk
+
+#############################################################################
+# Code to set up scrollbars for widgets. This is generic, boring stuff.
+#
+namespace eval autoscroll {
+  proc scrollable {widget path args} {
+    ::ttk::frame $path
+    set w  [$widget ${path}.widget {*}$args]
+    set vs [::ttk::scrollbar ${path}.vs]
+    set hs [::ttk::scrollbar ${path}.hs -orient horizontal]
+    grid $w  -row 0 -column 0 -sticky nsew
+  
+    grid rowconfigure    $path 0 -weight 1
+    grid columnconfigure $path 0 -weight 1
+  
+    set grid [list grid $vs -row 0 -column 1 -sticky nsew]
+    $w configure -yscrollcommand [list ::autoscroll::scrollcommand $grid $vs]
+    $vs configure -command       [list $w yview]
+    set grid [list grid $hs -row 1 -column 0 -sticky nsew]
+    $w configure -xscrollcommand [list ::autoscroll::scrollcommand $grid $hs]
+    $hs configure -command       [list $w xview]
+  
+    return $w
+  }
+  proc scrollcommand {grid sb args} {
+    $sb set {*}$args
+    set isRequired [expr {[lindex $args 0] != 0.0 || [lindex $args 1] != 1.0}]
+    if {$isRequired && ![winfo ismapped $sb]} {
+      {*}$grid
+    }
+    if {!$isRequired && [winfo ismapped $sb]} {
+      grid forget $sb
+    }
+  }
+  namespace export scrollable
+}
+namespace import ::autoscroll::*
+#############################################################################
+
+proc populate_text_widget {db} {
+  $::O(text) configure -state normal
+  set id [lindex [$::O(tree) selection] 0]
+  set frame [lindex $id end]
+
+  set line [$db one {SELECT line FROM frame WHERE frame = $frame}]
+  if {$line ne ""} {
+    regexp {^([^:]*):([0-9]*)} $line -> file line
+    set content [$db one "SELECT content FROM file WHERE name = '$file'"]
+    $::O(text) delete 0.0 end
+
+    set iLine 1
+    foreach L [split $content "\n"] {
+      if {$iLine == $line} {
+        $::O(text) insert end "$L\n" highlight
+      } else {
+        $::O(text) insert end "$L\n"
+      }
+      incr iLine
+    }
+    $::O(text) yview -pickplace ${line}.0
+  }
+  $::O(text) configure -state disabled
+}
+
+proc populate_index {db} {
+  $::O(text) configure -state normal
+  
+  $::O(text) delete 0.0 end
+  $::O(text) insert end "\n\n"
+
+  set L [format "    % -40s%12s%12s\n" "Test Case" "Allocations" "Bytes"]
+  $::O(text) insert end $L
+  $::O(text) insert end "    [string repeat - 64]\n"
+
+  $db eval {
+    SELECT 'TOTAL' AS ztest, sum(ncall) AS calls, sum(nbyte) AS bytes
+    FROM malloc 
+      UNION ALL
+    SELECT ztest AS ztest, sum(ncall) AS calls, sum(nbyte) AS bytes
+    FROM malloc 
+    GROUP BY ztest
+
+    ORDER BY 3 DESC
+  } {
+    set tags [list $ztest]
+    if {$ztest eq $::O(current)} {
+      lappend tags highlight
+    }
+    set L [format "    % -40s%12s%12s\n" $ztest $calls $bytes]
+    $::O(text) insert end $L $tags
+
+    $::O(text) tag bind $ztest <1> [list populate_tree_widget $db $ztest]
+    $::O(text) tag bind $ztest <Enter> [list $::O(text) configure -cursor hand2]
+    $::O(text) tag bind $ztest <Leave> [list $::O(text) configure -cursor ""]
+  }
+
+  $::O(text) configure -state disabled
+}
+
+proc sort_tree_compare {iLeft iRight} {
+  global O
+  switch -- [expr (int($O(tree_sort)/2))] {
+    0 {
+      set left  [$O(tree) item $iLeft -text]
+      set right [$O(tree) item $iRight -text]
+      set res [string compare $left $right]
+    }
+    1 {
+      set left  [lindex [$O(tree) item $iLeft -values] 0]
+      set right [lindex [$O(tree) item $iRight -values] 0]
+      set res [expr $left - $right]
+    }
+    2 {
+      set left  [lindex [$O(tree) item $iLeft -values] 1]
+      set right [lindex [$O(tree) item $iRight -values] 1]
+      set res [expr $left - $right]
+    }
+  }
+  if {$O(tree_sort)&0x01} {
+    set res [expr -1 * $res]
+  }
+  return $res
+}
+
+proc sort_tree {iMode} {
+  global O
+  if {$O(tree_sort) == $iMode} {
+    incr O(tree_sort)
+  } else {
+    set O(tree_sort) $iMode
+  }
+  set T $O(tree)
+  set items [$T children {}]
+  set items [lsort -command sort_tree_compare $items]
+  for {set ii 0} {$ii < [llength $items]} {incr ii} {
+    $T move [lindex $items $ii] {} $ii
+  }
+}
+
+proc trim_frames {stack} {
+  while {[info exists ::O(ignore.[lindex $stack 0])]} {
+    set stack [lrange $stack 1 end]
+  }
+  return $stack
+}
+
+proc populate_tree_widget {db zTest} {
+  $::O(tree) delete [$::O(tree) children {}]
+
+  for {set ii 0} {$ii < 15} {incr ii} {
+    $db eval {
+      SELECT 
+        sum(ncall) AS calls, 
+        sum(nbyte) AS bytes,
+        trim_frames(lrange(lstack, 0, $ii)) AS stack
+      FROM malloc
+      WHERE (zTest = $zTest OR $zTest = 'TOTAL') AND llength(lstack)>$ii
+      GROUP BY stack
+      HAVING stack != ''
+    } {
+      set parent_id [lrange $stack 0 end-1]
+      set frame [lindex $stack end]
+      set line [$db one {SELECT line FROM frame WHERE frame = $frame}]
+      set line [lindex [split $line /] end]
+      set v [list $calls $bytes]
+
+      catch {
+        $::O(tree) insert $parent_id end -id $stack -text $line -values $v
+      }
+    }
+  }
+
+  set ::O(current) $zTest
+  populate_index $db
+}
+
+
+
+set O(tree_sort) 0
+
+::ttk::panedwindow .pan -orient horizontal
+set O(tree) [scrollable ::ttk::treeview .pan.tree]
+
+frame .pan.right
+set O(text) [scrollable text .pan.right.text]
+button .pan.right.index -command {populate_index mddb} -text "Show Index"
+pack .pan.right.index -side top -fill x
+pack .pan.right.text -fill both -expand true
+
+$O(text) tag configure highlight -background wheat
+$O(text) configure -wrap none -height 35
+
+.pan add .pan.tree
+.pan add .pan.right
+
+$O(tree) configure     -columns {calls bytes}
+$O(tree) heading #0    -text Line  -anchor w -command {sort_tree 0}
+$O(tree) heading calls -text Calls -anchor w -command {sort_tree 2}
+$O(tree) heading bytes -text Bytes -anchor w -command {sort_tree 4}
+$O(tree) column #0    -width 150
+$O(tree) column calls -width 100
+$O(tree) column bytes -width 100
+
+pack .pan -fill both -expand 1
+
+#--------------------------------------------------------------------
+# Open the database containing the malloc data. The user specifies the
+# database to use by passing the file-name on the command line.
+#
+proc open_database {} {
+  if {[info exists ::BUILTIN]} {
+    sqlite3 mddb :memory:
+    mddb eval $::BUILTIN
+    wm title . $::argv0
+  } else {
+    set zFilename [lindex $::argv 0]
+    if {$zFilename eq ""} {
+      set zFilename mallocs.sql
+    }
+    set fd [open $zFilename]
+    set zHdr [read $fd 15]
+    if {$zHdr eq "SQLite format 3"} {
+      close $fd
+      sqlite3 mddb $zFilename
+    } else {
+      seek $fd 0
+      sqlite3 mddb :memory:
+      mddb eval [read $fd]
+      close $fd
+    }
+    wm title . $zFilename
+  }
+
+  mddb function lrange -argcount 3 lrange
+  mddb function llength -argcount 1 llength
+  mddb function trim_frames -argcount 1 trim_frames
+
+  mddb eval {
+    SELECT frame FROM frame 
+    WHERE line LIKE '%malloc.c:%' OR line LIKE '%mem2.c:%'
+  } {
+    set ::O(ignore.$frame) 1
+  }
+}
+
+open_database
+bind $O(tree) <<TreeviewSelect>> [list populate_text_widget mddb]
+
+populate_tree_widget mddb [mddb one {SELECT zTest FROM malloc LIMIT 1}]
+
diff --git a/test/manydb.test b/test/manydb.test
new file mode 100644
index 0000000000000000000000000000000000000000..974a5b8ebe7b8faee295e41f71f678382e8c5d3c
--- /dev/null
+++ b/test/manydb.test
@@ -0,0 +1,102 @@
+# 2005 October 3
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests the ability of the library to open
+# many different databases at the same time without leaking memory.
+#
+# $Id: manydb.test,v 1.4 2008/11/21 00:10:35 aswift Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+set N 300
+# if we're using proxy locks, we use 5 filedescriptors for a db
+# that is open and in the middle of writing changes, normally
+# sqlite uses 3 (proxy locking adds the conch and the local lock)
+set using_proxy 0
+foreach {name value} [array get env SQLITE_FORCE_PROXY_LOCKING] {
+  set using_proxy value
+}
+set num_fd_per_openwrite_db 3
+if {$using_proxy>0} {
+  set num_fd_per_openwrite_db 5
+} 
+
+# First test how many file descriptors are available for use. To open a
+# database for writing SQLite requires 3 file descriptors (the database, the
+# journal and the directory).
+set filehandles {}
+catch {
+  for {set i 0} {$i<($N * 3)} {incr i} {
+    lappend filehandles [open testfile.1 w]
+  }
+}
+foreach fd $filehandles {
+  close $fd
+}
+catch {
+  forcedelete testfile.1
+}
+set N [expr $i / $num_fd_per_openwrite_db]
+
+# Create a bunch of random database names
+#
+unset -nocomplain dbname
+unset -nocomplain used
+for {set i 0} {$i<$N} {incr i} {
+  while 1 {
+    set name test-[format %08x [expr {int(rand()*0x7fffffff)}]].db
+    if {[info exists used($name)]} continue
+    set dbname($i) $name
+    set used($name) $i
+    break
+  }
+}
+
+# Create a bunch of databases
+#
+for {set i 0} {$i<$N} {incr i} {
+  do_test manydb-1.$i {
+    sqlite3 db$i $dbname($i)
+    execsql {
+       CREATE TABLE t1(a,b);
+       BEGIN;
+       INSERT INTO t1 VALUES(1,2);
+    } db$i
+  } {}
+}
+
+# Finish the transactions
+#
+for {set i 0} {$i<$N} {incr i} {
+  do_test manydb-2.$i {
+    execsql {
+       COMMIT;
+       SELECT * FROM t1;
+    } db$i
+  } {1 2}
+}
+
+
+# Close the databases and erase the files.
+#
+for {set i 0} {$i<$N} {incr i} {
+  do_test manydb-3.$i {
+    db$i close
+    forcedelete $dbname($i)
+  } {}
+}
+
+
+
+
+finish_test
diff --git a/test/mem5.test b/test/mem5.test
new file mode 100644
index 0000000000000000000000000000000000000000..6365f1c64b290da445b3f5cb08bf785decfa7921
--- /dev/null
+++ b/test/mem5.test
@@ -0,0 +1,66 @@
+# 2011 March 9
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains tests of the mem5 allocation subsystem.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !mem5 {
+  finish_test
+  return
+}
+
+# The tests in this file configure the lookaside allocator after a 
+# connection is opened. This will not work if there is any "presql"
+# configured (SQL run within the [sqlite3] wrapper in tester.tcl).
+if {[info exists ::G(perm:presql)]} {
+  finish_test
+  return
+}
+
+do_test mem5-1.1 {
+  catch {db close}
+  sqlite3_shutdown
+  sqlite3_config_heap 25000000 0
+  sqlite3_config_lookaside 0 0
+  sqlite3_initialize
+} {SQLITE_OK}
+
+# try with min request size = 2^30
+do_test mem5-1.2 {
+  catch {db close}
+  sqlite3_shutdown
+  sqlite3_config_heap 1 1073741824
+  sqlite3_config_lookaside 0 0
+  sqlite3_initialize
+} {SQLITE_NOMEM}
+
+# try with min request size = 2^30+1
+# previously this was causing the memsys5Log() func to infinitely loop.
+do_test mem5-1.3 {
+  catch {db close}
+  sqlite3_shutdown
+  sqlite3_config_heap 1 1073741825
+  sqlite3_config_lookaside 0 0
+  sqlite3_initialize
+} {SQLITE_NOMEM}
+
+do_test mem5-1.4 {
+  catch {db close}
+  sqlite3_shutdown
+  sqlite3_config_heap 0 0
+  sqlite3_config_lookaside 0 0
+  sqlite3_initialize
+} {SQLITE_OK}
+
+finish_test
diff --git a/test/memdb.test b/test/memdb.test
new file mode 100644
index 0000000000000000000000000000000000000000..7bad26f526b5e13315a9494cd5016c108d0d8d72
--- /dev/null
+++ b/test/memdb.test
@@ -0,0 +1,431 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is in-memory database backend.
+#
+# $Id: memdb.test,v 1.19 2009/05/18 16:04:38 danielk1977 Exp $
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable memorydb {
+
+# In the following sequence of tests, compute the MD5 sum of the content
+# of a table, make lots of modifications to that table, then do a rollback.
+# Verify that after the rollback, the MD5 checksum is unchanged.
+#
+# These tests were browed from trans.tcl.
+#
+do_test memdb-1.1 {
+  db close
+  sqlite3 db :memory:
+  # sqlite3 db test.db
+  execsql {
+    BEGIN;
+    CREATE TABLE t3(x TEXT);
+    INSERT INTO t3 VALUES(randstr(10,400));
+    INSERT INTO t3 VALUES(randstr(10,400));
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3;
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3;
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3;
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3;
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3;
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3;
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3;
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3;
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3;
+    COMMIT;
+    SELECT count(*) FROM t3;
+  }
+} {1024}
+
+# The following procedure computes a "signature" for table "t3".  If
+# T3 changes in any way, the signature should change.  
+#
+# This is used to test ROLLBACK.  We gather a signature for t3, then
+# make lots of changes to t3, then rollback and take another signature.
+# The two signatures should be the same.
+#
+proc signature {{fn {}}} {
+  set rx [db eval {SELECT x FROM t3}]
+  # set r1 [md5 $rx\n]
+  if {$fn!=""} {
+    # set fd [open $fn w]
+    # puts $fd $rx
+    # close $fd
+  }
+  # set r [db eval {SELECT count(*), md5sum(x) FROM t3}]
+  # puts "SIG($fn)=$r1"
+  return [list [string length $rx] $rx]
+}
+
+# Do rollbacks.  Make sure the signature does not change.
+#
+set limit 10
+for {set i 2} {$i<=$limit} {incr i} {
+  set ::sig [signature one]
+  # puts "sig=$sig"
+  set cnt [lindex $::sig 0]
+  if {$i%2==0} {
+    execsql {PRAGMA synchronous=FULL}
+  } else {
+    execsql {PRAGMA synchronous=NORMAL}
+  }
+  do_test memdb-1.$i.1-$cnt {
+     execsql {
+       BEGIN;
+       DELETE FROM t3 WHERE random()%10!=0;
+       INSERT INTO t3 SELECT randstr(10,10)||x FROM t3;
+       INSERT INTO t3 SELECT randstr(10,10)||x FROM t3;
+       ROLLBACK;
+     }
+     set sig2 [signature two]
+  } $sig
+  # puts "sig2=$sig2"
+  # if {$sig2!=$sig} exit
+  do_test memdb-1.$i.2-$cnt {
+     execsql {
+       BEGIN;
+       DELETE FROM t3 WHERE random()%10!=0;
+       INSERT INTO t3 SELECT randstr(10,10)||x FROM t3;
+       DELETE FROM t3 WHERE random()%10!=0;
+       INSERT INTO t3 SELECT randstr(10,10)||x FROM t3;
+       ROLLBACK;
+     }
+     signature
+  } $sig
+  if {$i<$limit} {
+    do_test memdb-1.$i.9-$cnt {
+       execsql {
+         INSERT INTO t3 SELECT randstr(10,400) FROM t3 WHERE random()%10==0;
+       }
+    } {}
+  }
+  set ::pager_old_format 0
+}
+
+integrity_check memdb-2.1
+
+do_test memdb-3.1 {
+  execsql {
+    CREATE TABLE t4(a,b,c,d);
+    BEGIN;
+    INSERT INTO t4 VALUES(1,2,3,4);
+    SELECT * FROM t4;
+  }
+} {1 2 3 4}
+do_test memdb-3.2 {
+  execsql {
+    SELECT name FROM sqlite_master WHERE type='table';
+  }
+} {t3 t4}
+do_test memdb-3.3 {
+  execsql {
+    DROP TABLE t4;
+    SELECT name FROM sqlite_master WHERE type='table';
+  }
+} {t3}
+do_test memdb-3.4 {
+  execsql {
+    ROLLBACK;
+    SELECT name FROM sqlite_master WHERE type='table';
+  }
+} {t3 t4}
+
+# Create tables for the first group of tests.
+#
+do_test memdb-4.0 {
+  execsql {
+    CREATE TABLE t1(a, b, c, UNIQUE(a,b));
+    CREATE TABLE t2(x);
+    SELECT c FROM t1 ORDER BY c;
+  }
+} {}
+
+# Six columns of configuration data as follows:
+#
+#   i      The reference number of the test
+#   conf   The conflict resolution algorithm on the BEGIN statement
+#   cmd    An INSERT or REPLACE command to execute against table t1
+#   t0     True if there is an error from $cmd
+#   t1     Content of "c" column of t1 assuming no error in $cmd
+#   t2     Content of "x" column of t2
+#
+foreach {i conf cmd t0 t1 t2} {
+  1 {}       INSERT                  1 {}  1
+  2 {}       {INSERT OR IGNORE}      0 3   1
+  3 {}       {INSERT OR REPLACE}     0 4   1
+  4 {}       REPLACE                 0 4   1
+  5 {}       {INSERT OR FAIL}        1 {}  1
+  6 {}       {INSERT OR ABORT}       1 {}  1
+  7 {}       {INSERT OR ROLLBACK}    1 {}  {}
+} {
+
+  # All tests after test 1 depend on conflict resolution. So end the
+  # loop if that is not available in this build.
+  ifcapable !conflict {if {$i>1} break}
+
+  do_test memdb-4.$i {
+    if {$conf!=""} {set conf "ON CONFLICT $conf"}
+    set r0 [catch {execsql [subst {
+      DELETE FROM t1;
+      DELETE FROM t2;
+      INSERT INTO t1 VALUES(1,2,3);
+      BEGIN $conf;
+      INSERT INTO t2 VALUES(1); 
+      $cmd INTO t1 VALUES(1,2,4);
+    }]} r1]
+    catch {execsql {COMMIT}}
+    if {$r0} {set r1 {}} {set r1 [execsql {SELECT c FROM t1}]}
+    set r2 [execsql {SELECT x FROM t2}]
+    list $r0 $r1 $r2
+  } [list $t0 $t1 $t2]
+}
+
+do_test memdb-5.0 {
+  execsql {
+    DROP TABLE t2;
+    DROP TABLE t3;
+    CREATE TABLE t2(a,b,c);
+    INSERT INTO t2 VALUES(1,2,1);
+    INSERT INTO t2 VALUES(2,3,2);
+    INSERT INTO t2 VALUES(3,4,1);
+    INSERT INTO t2 VALUES(4,5,4);
+    SELECT c FROM t2 ORDER BY b;
+    CREATE TABLE t3(x);
+    INSERT INTO t3 VALUES(1);
+  }
+} {1 2 1 4}
+
+# Six columns of configuration data as follows:
+#
+#   i      The reference number of the test
+#   conf1  The conflict resolution algorithm on the UNIQUE constraint
+#   conf2  The conflict resolution algorithm on the BEGIN statement
+#   cmd    An UPDATE command to execute against table t1
+#   t0     True if there is an error from $cmd
+#   t1     Content of "b" column of t1 assuming no error in $cmd
+#   t2     Content of "x" column of t3
+#
+foreach {i conf1 conf2 cmd t0 t1 t2} {
+  1 {}       {}       UPDATE                  1 {6 7 8 9}  1
+  2 REPLACE  {}       UPDATE                  0 {7 6 9}    1
+  3 IGNORE   {}       UPDATE                  0 {6 7 3 9}  1
+  4 FAIL     {}       UPDATE                  1 {6 7 3 4}  1
+  5 ABORT    {}       UPDATE                  1 {1 2 3 4}  1
+  6 ROLLBACK {}       UPDATE                  1 {1 2 3 4}  0
+  7 REPLACE  {}       {UPDATE OR IGNORE}      0 {6 7 3 9}  1
+  8 IGNORE   {}       {UPDATE OR REPLACE}     0 {7 6 9}    1
+  9 FAIL     {}       {UPDATE OR IGNORE}      0 {6 7 3 9}  1
+ 10 ABORT    {}       {UPDATE OR REPLACE}     0 {7 6 9}    1
+ 11 ROLLBACK {}       {UPDATE OR IGNORE}      0 {6 7 3 9}   1
+ 12 {}       {}       {UPDATE OR IGNORE}      0 {6 7 3 9}  1
+ 13 {}       {}       {UPDATE OR REPLACE}     0 {7 6 9}    1
+ 14 {}       {}       {UPDATE OR FAIL}        1 {6 7 3 4}  1
+ 15 {}       {}       {UPDATE OR ABORT}       1 {1 2 3 4}  1
+ 16 {}       {}       {UPDATE OR ROLLBACK}    1 {1 2 3 4}  0
+} {
+  # All tests after test 1 depend on conflict resolution. So end the
+  # loop if that is not available in this build.
+  ifcapable !conflict {
+    if {$i>1} break
+  }
+
+  if {$t0} {set t1 {UNIQUE constraint failed: t1.a}}
+  do_test memdb-5.$i {
+    if {$conf1!=""} {set conf1 "ON CONFLICT $conf1"}
+    if {$conf2!=""} {set conf2 "ON CONFLICT $conf2"}
+    set r0 [catch {execsql "
+      DROP TABLE t1;
+      CREATE TABLE t1(a,b,c, UNIQUE(a) $conf1);
+      INSERT INTO t1 SELECT * FROM t2;
+      UPDATE t3 SET x=0;
+      BEGIN $conf2;
+      $cmd t3 SET x=1;
+      $cmd t1 SET b=b*2;
+      $cmd t1 SET a=c+5;
+    "} r1]
+    catch {execsql {COMMIT}}
+    if {!$r0} {set r1 [execsql {SELECT a FROM t1 ORDER BY b}]}
+    set r2 [execsql {SELECT x FROM t3}]
+    list $r0 $r1 $r2
+  } [list $t0 $t1 $t2]
+}
+
+do_test memdb-6.1 {
+  execsql {
+    SELECT * FROM t2;
+  }
+} {1 2 1 2 3 2 3 4 1 4 5 4}
+do_test memdb-6.2 {
+  execsql {
+    BEGIN;
+    DROP TABLE t2;
+    SELECT name FROM sqlite_master WHERE type='table' ORDER BY 1;
+  }
+} {t1 t3 t4}
+do_test memdb-6.3 {
+  execsql {
+    ROLLBACK;
+    SELECT name FROM sqlite_master WHERE type='table' ORDER BY 1;
+  }
+} {t1 t2 t3 t4}
+do_test memdb-6.4 {
+  execsql {
+    SELECT * FROM t2;
+  }
+} {1 2 1 2 3 2 3 4 1 4 5 4}
+ifcapable compound {
+do_test memdb-6.5 {
+  execsql {
+    SELECT a FROM t2 UNION SELECT b FROM t2 ORDER BY 1;
+  }
+} {1 2 3 4 5}
+} ;# ifcapable compound 
+do_test memdb-6.6 {
+  execsql {
+    CREATE INDEX i2 ON t2(c);
+    SELECT a FROM t2 ORDER BY c;
+  }
+} {1 3 2 4}
+do_test memdb-6.6 {
+  execsql {
+    SELECT a FROM t2 ORDER BY c DESC;
+  }
+} {4 2 3 1}
+do_test memdb-6.7 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t5(x,y);
+    INSERT INTO t5 VALUES(1,2);
+    SELECT * FROM t5;
+  }
+} {1 2}
+do_test memdb-6.8 {
+  execsql {
+    SELECT name FROM sqlite_master WHERE type='table' ORDER BY 1;
+  }
+} {t1 t2 t3 t4 t5}
+do_test memdb-6.9 {
+  execsql {
+    ROLLBACK;
+    SELECT name FROM sqlite_master WHERE type='table' ORDER BY 1;
+  }
+} {t1 t2 t3 t4}
+do_test memdb-6.10 {
+  execsql {
+    CREATE TABLE t5(x PRIMARY KEY, y UNIQUE);
+    SELECT * FROM t5;
+  }
+} {}
+do_test memdb-6.11 {
+  execsql {
+    SELECT * FROM t5 ORDER BY y DESC;
+  }
+} {}
+
+ifcapable conflict {
+  do_test memdb-6.12 {
+    execsql {
+      INSERT INTO t5 VALUES(1,2);
+      INSERT INTO t5 VALUES(3,4);
+      REPLACE INTO t5 VALUES(1,4);
+      SELECT rowid,* FROM t5;
+    }
+  } {3 1 4}
+  do_test memdb-6.13 {
+    execsql {
+      DELETE FROM t5 WHERE x>5;
+      SELECT * FROM t5;
+    }
+  } {1 4}
+  do_test memdb-6.14 {
+    execsql {
+      DELETE FROM t5 WHERE y<3;
+      SELECT * FROM t5;
+    }
+  } {1 4}
+}
+
+do_test memdb-6.15 {
+  execsql {
+    DELETE FROM t5 WHERE x>0;
+    SELECT * FROM t5;
+  }
+} {}
+
+ifcapable subquery&&vtab {
+  do_test memdb-7.1 {
+    load_static_extension db wholenumber
+    execsql {
+      CREATE TABLE t6(x);
+      CREATE VIRTUAL TABLE nums USING wholenumber;
+      INSERT INTO t6 SELECT value FROM nums WHERE value BETWEEN 1 AND 256;
+      SELECT count(*) FROM (SELECT DISTINCT x FROM t6);
+    }
+  } {256}
+  for {set i 1} {$i<=256} {incr i} {
+    do_test memdb-7.2.$i {
+       execsql "DELETE FROM t6 WHERE x=\
+                (SELECT x FROM t6 ORDER BY random() LIMIT 1)"
+       execsql {SELECT count(*) FROM t6}
+    } [expr {256-$i}]
+  }
+}
+
+# Ticket #1524
+#
+do_test memdb-8.1 {
+  db close
+  sqlite3 db {:memory:}
+  execsql {
+    PRAGMA auto_vacuum=TRUE;
+    CREATE TABLE t1(a);
+    INSERT INTO t1 VALUES(randstr(5000,6000));
+    INSERT INTO t1 VALUES(randstr(5000,6000));
+    INSERT INTO t1 VALUES(randstr(5000,6000));
+    INSERT INTO t1 VALUES(randstr(5000,6000));
+    INSERT INTO t1 VALUES(randstr(5000,6000));
+    SELECT count(*) FROM t1;
+  }
+} 5
+do_test memdb-8.2 {
+  execsql {
+    DELETE FROM t1;
+    SELECT count(*) FROM t1;
+  }
+} 0
+
+# Test that auto-vacuum works with in-memory databases.
+# 
+ifcapable autovacuum {
+  do_test memdb-9.1 {
+    db close
+    sqlite3 db test.db
+    db cache size 0
+    execsql {
+      PRAGMA auto_vacuum = full;
+      CREATE TABLE t1(a);
+      INSERT INTO t1 VALUES(randstr(1000,1000));
+      INSERT INTO t1 VALUES(randstr(1000,1000));
+      INSERT INTO t1 VALUES(randstr(1000,1000));
+    }
+    set before [db one {PRAGMA page_count}]
+    execsql { DELETE FROM t1 }
+    set after [db one {PRAGMA page_count}]
+    expr {$before>$after}
+  } {1}
+}
+
+} ;# ifcapable memorydb
+
+finish_test
diff --git a/test/memdb1.test b/test/memdb1.test
new file mode 100644
index 0000000000000000000000000000000000000000..c0510abae70902eb8e3b32cd6668295406a03b49
--- /dev/null
+++ b/test/memdb1.test
@@ -0,0 +1,283 @@
+# 2018-01-02
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is the "memdb" VFS
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix memdb1
+do_not_use_codec
+
+ifcapable !deserialize {
+  finish_test
+  return
+}
+
+# Create a MEMDB and populate it with some dummy data.
+# Then extract the database into the $::db1 variable.
+# Verify that the size of $::db1 is the same as the size of
+# the database.
+#
+unset -nocomplain db1
+unset -nocomplain sz1
+unset -nocomplain pgsz
+do_test 100 {
+  db eval {
+    CREATE TABLE t1(a,b);
+    INSERT INTO t1 VALUES(1,2);
+  }
+  set ::pgsz [db one {PRAGMA page_size}]
+  set ::sz1 [expr {$::pgsz*[db one {PRAGMA page_count}]}]
+  set ::db1 [db serialize]
+  expr {[string length $::db1]==$::sz1}
+} 1
+set fd [open db1.db wb]
+puts -nonewline $fd $db1
+close $fd
+
+# Create a new MEMDB and initialize it to the content of $::db1
+# Verify that the content is the same.
+#
+db close
+sqlite3 db
+db deserialize $db1
+do_execsql_test 110 {
+  SELECT * FROM t1;
+} {1 2}
+
+# What happens when we try to VACUUM a MEMDB database?
+#
+do_execsql_test 120 {
+  PRAGMA auto_vacuum = off;
+  VACUUM;
+} {}
+do_execsql_test 130 {
+  CREATE TABLE t2(x, y);
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<100)
+   INSERT INTO t2(x, y) SELECT x, randomblob(1000) FROM c;
+  DROP TABLE t2;
+  PRAGMA page_count;
+} {116}
+do_execsql_test 140 {
+  VACUUM;
+  PRAGMA page_count;
+} {2}
+
+do_test 150 {
+  catch {db deserialize -unknown 1 $db1} msg
+  set msg
+} {unknown option: -unknown}
+do_test 151 {
+  db deserialize -readonly 1 $db1
+  db eval {SELECT * FROM t1}
+} {1 2}
+do_test 152 {
+  catchsql {INSERT INTO t1 VALUES(3,4);}
+} {1 {attempt to write a readonly database}}
+
+do_test 160 {
+  db deserialize -maxsize 32768 $db1
+  db eval {SELECT * FROM t1}
+} {1 2}
+do_test 161 {
+  db eval {INSERT INTO t1 VALUES(3,4); SELECT * FROM t1}
+} {1 2 3 4}
+do_test 162 {
+  catchsql {INSERT INTO t1 VALUES(5,randomblob(100000))}
+} {1 {database or disk is full}}
+
+
+# Build a largish on-disk database and serialize it.  Verify that the
+# serialization works.
+#
+db close
+forcedelete test.db
+sqlite3 db test.db
+do_execsql_test 200 {
+  CREATE TABLE t3(x, y);
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<400)
+   INSERT INTO t3(x, y) SELECT x, randomblob(1000) FROM c;
+  PRAGMA quick_check;
+} {ok}
+set fd [open test.db rb]
+unset -nocomplain direct
+set direct [read $fd]
+close $fd
+do_test 210 {
+  string length [db serialize]
+} [string length $direct]
+do_test 220 {
+  db eval {ATTACH ':memory:' AS aux1}
+  db deserialize aux1 $::direct
+  db eval {
+     SELECT x, y FROM main.t3 EXCEPT SELECT x, y FROM aux1.t3;
+  }
+} {}
+unset -nocomplain direct
+
+# Do the same with a :memory: database.
+#
+db close
+sqlite3 db :memory:
+do_execsql_test 300 {
+  CREATE TABLE t3(x, y);
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<400)
+   INSERT INTO t3(x, y) SELECT x, randomblob(1000) FROM c;
+  PRAGMA quick_check;
+} {ok}
+do_test 310 {
+  db eval {ATTACH ':memory:' AS aux1}
+  db deserialize aux1 [db serialize main]
+  db eval {
+     SELECT x, y FROM main.t3 EXCEPT SELECT x, y FROM aux1.t3;
+  }
+} {}
+
+# Deserialize an empty database
+#
+db close
+sqlite3 db
+db deserialize {}
+do_execsql_test 400 {
+  PRAGMA integrity_check;
+} {ok}
+do_execsql_test 410 {
+  CREATE TABLE t4(a,b);
+  INSERT INTO t4 VALUES('hello','world!');
+  PRAGMA integrity_check;
+  SELECT * FROM t4;
+} {ok hello world!}
+do_execsql_test 420 {
+  PRAGMA journal_mode=TRUNCATE;
+  PRAGMA journal_mode=OFF;
+  PRAGMA journal_mode=DELETE;
+  PRAGMA journal_mode=WAL;
+  PRAGMA journal_mode=PERSIST;
+  PRAGMA journal_mode=MEMORY;
+  PRAGMA journal_mode=OFF;
+  PRAGMA journal_mode=DELETE;
+} {truncate off delete delete persist memory off delete}
+
+# Deserialize something that is not a database.
+#
+db close
+sqlite3 db
+do_test 500 {
+  set rc [catch {db deserialize not-a-database} msg]
+  lappend rc $msg
+} {0 {}}
+do_catchsql_test 510 {
+  PRAGMA integrity_check;
+} {1 {file is not a database}}
+
+# Abuse the serialize and deserialize commands.  Make sure errors are caught.
+#
+do_test 600 {
+  set rc [catch {db deserialize} msg]
+  lappend rc $msg
+} {1 {wrong # args: should be "db deserialize ?DATABASE? VALUE"}}
+do_test 610 {
+  set rc [catch {db deserialize a b c} msg]
+  lappend rc $msg
+} {1 {unknown option: a}}
+do_test 620 {
+  set rc [catch {db serialize a b} msg]
+  lappend rc $msg
+} {1 {wrong # args: should be "db serialize ?DATABASE?"}}
+
+# 2021-07-19 https://sqlite.org/forum/forumpost/e1cbb5f450b98aa6
+# The TEMP database cannot participate in serialization or
+# deserialization.
+#
+reset_db
+do_test 650 {
+  db eval {
+    CREATE TEMP TABLE t0(a);
+    CREATE TABLE t1(x);
+    WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<1000)
+    INSERT INTO t1(x) SELECT random() FROM c;
+  }
+  set rc [catch {db deserialize temp [db serialize main]} err]
+  lappend rc err
+} {1 err}
+
+#-------------------------------------------------------------------------
+ifcapable vtab {
+  reset_db
+  do_execsql_test 700 {
+    CREATE TABLE t1(a, b);
+    PRAGMA schema_version = 0;
+  }
+  do_test 710 {
+    set ser [db serialize main]
+    db close
+    sqlite3 db
+    db deserialize main $ser
+    catchsql {
+      CREATE VIRTUAL TABLE t1 USING rtree(id, a, b, c, d);
+    }
+  } {1 {table t1 already exists}}
+}
+
+
+#-------------------------------------------------------------------------
+# dbsqlfuzz  0a13dfb474d4f2f11a48a2ea57075c96fb456dd7
+#
+if {[wal_is_capable]} {
+  reset_db
+  do_execsql_test 800 {
+    PRAGMA auto_vacuum = 0;
+    PRAGMA page_size = 8192;
+    PRAGMA journal_mode = wal;
+    CREATE TABLE t1(x, y);
+    INSERT INTO t1 VALUES(1, 2);
+    CREATE TABLE t2(x, y);
+  } {wal}
+  db close
+  
+  set fd [open test.db]
+  fconfigure $fd -translation binary
+  set data [read $fd [expr 20*1024]]
+  close $fd
+  
+  sqlite3 db ""
+  db deserialize $data
+  
+  do_execsql_test 810 {
+    PRAGMA locking_mode = exclusive;
+    SELECT * FROM t1
+  } {exclusive 1 2}
+  
+  do_execsql_test 820 {
+    INSERT INTO t1 VALUES(3, 4);
+    SELECT * FROM t1;
+  } {1 2 3 4}
+  
+  do_catchsql_test 830 {
+    PRAGMA wal_checkpoint;
+  } {1 {database disk image is malformed}}
+}
+
+# 2024-01-20
+# https://sqlite.org/forum/forumpost/498777780e16880a
+#
+# Make sure a database is initialized before serializing it.
+#
+reset_db
+sqlite3 dbempty :memory:
+do_test 900 {
+  set len [string length [dbempty serialize]]
+  expr {$len>0}
+} 1
+dbempty close
+
+finish_test
diff --git a/test/memdb2.test b/test/memdb2.test
new file mode 100644
index 0000000000000000000000000000000000000000..7c2144991f0bcc747cb573a498bd04c23969f5ce
--- /dev/null
+++ b/test/memdb2.test
@@ -0,0 +1,76 @@
+# 2022-12-05
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is the "memdb" VFS
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix memdb2
+do_not_use_codec
+
+ifcapable !deserialize {
+  finish_test
+  return
+}
+
+db close
+
+#-------------------------------------------------------------------------
+# Test that when using a memdb database, it is not possible to upgrade
+# to an EXCLUSIVE lock if some other client is holding SHARED.
+#
+foreach {tn fname} {
+    1   file:/test.db?vfs=memdb
+    2   file:\\test.db?vfs=memdb
+} {
+  if {$tn==2} breakpoint
+  sqlite3 db  $fname -uri 1
+  sqlite3 db2 $fname -uri 1
+
+  
+  do_execsql_test 1.$tn.1 {
+    CREATE TABLE t1(x, y);
+    INSERT INTO t1 VALUES(1, 2);
+  }
+  
+  do_execsql_test -db db2 1.$tn.2 {
+    BEGIN;
+      SELECT * FROM t1;
+  } {1 2}
+  
+  do_execsql_test 1.$tn.3 {
+    BEGIN;
+      INSERT INTO t1 VALUES(3, 4);
+  }
+  
+  do_catchsql_test 1.$tn.4 {
+    COMMIT
+  } {1 {database is locked}}
+  
+  do_execsql_test -db db2 1.$tn.5 {
+      SELECT * FROM t1;
+    END;
+  } {1 2}
+  
+  do_execsql_test 1.$tn.6 {
+    COMMIT
+  } {}
+  
+  do_execsql_test -db db2 1.$tn.7 {
+    SELECT * FROM t1
+  } {1 2 3 4}
+  
+  db close
+  db2 close
+}
+
+finish_test
diff --git a/test/memjournal.test b/test/memjournal.test
new file mode 100644
index 0000000000000000000000000000000000000000..73f984b5533bfae979e64334c91e8d7d6b525cde
--- /dev/null
+++ b/test/memjournal.test
@@ -0,0 +1,48 @@
+# 2021 May 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# Tests focused on the in-memory journal.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+set testprefix memjournal
+
+
+do_execsql_test 1.0 {
+  PRAGMA journal_mode = memory;
+  CREATE TABLE t1(a);
+} {memory}
+
+set nRow [expr 1]
+
+do_execsql_test 1.1 {
+  BEGIN;
+    INSERT INTO t1 VALUES( randomblob(500) );
+} {}
+
+do_test 1.2 {
+  for {set i 1} {$i <= 500} {incr i} {
+    execsql {
+      SAVEPOINT one;
+      UPDATE t1 SET a=randomblob(500);
+    }
+    execsql { SAVEPOINT abc } 
+    execsql { UPDATE t1 SET a=randomblob(500) WHERE rowid<=$i AND 0 }
+    execsql { RELEASE abc }
+  } 
+} {}
+
+do_execsql_test 1.3 {
+  COMMIT;
+}
+
+finish_test
diff --git a/test/memjournal2.test b/test/memjournal2.test
new file mode 100644
index 0000000000000000000000000000000000000000..d08bcb5a6ad615911acbff7832bcbbe9cac68f9c
--- /dev/null
+++ b/test/memjournal2.test
@@ -0,0 +1,61 @@
+# 2022 Jan 01
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# Tests focused on the in-memory journal.
+#
+# TESTRUNNER: slow
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+set testprefix memjournal2
+
+do_execsql_test 1.0 {
+  PRAGMA journal_mode = memory;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b UNIQUE);
+} {memory}
+
+set nRow [expr 2000]
+
+do_execsql_test 1.1 {
+  BEGIN;
+    WITH s(i) AS (
+      SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<$nRow
+    )
+    INSERT INTO t1 SELECT NULL, randomblob(700) FROM s;
+}
+
+for {set jj 200} {$jj <= 300} {incr jj} {
+  do_execsql_test 1.2.$jj.1 {
+    SAVEPOINT one; 
+      UPDATE t1 SET b=randomblob(700) WHERE a<=$jj;
+  }
+  do_execsql_test 1.2.$jj.2 {
+      SAVEPOINT two;
+        UPDATE t1 SET b=randomblob(700) WHERE a==1;
+      ROLLBACK TO two;
+      RELEASE two;
+  }
+  do_execsql_test 1.2.$jj.3 {
+      SAVEPOINT two;
+        UPDATE t1 SET b=randomblob(700) WHERE a==1;
+      ROLLBACK TO two;
+      RELEASE two;
+  }
+
+  do_execsql_test 1.2.$jj.4 {
+    PRAGMA integrity_check;
+    ROLLBACK TO one;
+    RELEASE one;
+  } {ok}
+} 
+
+
+finish_test
diff --git a/test/memleak.test b/test/memleak.test
new file mode 100644
index 0000000000000000000000000000000000000000..8443162ed6e1e1295c85d966567171111f0a049b
--- /dev/null
+++ b/test/memleak.test
@@ -0,0 +1,95 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file runs all tests.
+#
+# $Id: memleak.test,v 1.10 2007/03/30 17:17:52 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+rename finish_test memleak_finish_test
+proc finish_test {} {
+  catch {db close}
+  memleak_check
+}
+
+if {[file exists ./sqlite_test_count]} {
+  set COUNT [exec cat ./sqlite_test_count]
+} else {
+  set COUNT 3
+}
+
+# LeakList will hold a list of the number of unfreed mallocs after
+# each round of the test.  This number should be constant.  If it
+# grows, it may mean there is a memory leak in the library.
+#
+set LeakList {}
+
+set EXCLUDE {
+  all.test
+  quick.test
+  misuse.test
+  memleak.test
+  btree2.test
+  trans.test
+  crash.test
+  autovacuum_crash.test
+}
+# Test files btree2.test and btree4.test don't work if the 
+# SQLITE_DEFAULT_AUTOVACUUM macro is defined to true (because they depend
+# on tables being allocated starting at page 2).
+#
+ifcapable default_autovacuum {
+  lappend EXCLUDE btree2.test
+  lappend EXCLUDE btree4.test
+}
+
+if {[sqlite3 -has-codec]} {
+  # lappend EXCLUDE 
+}
+if {[llength $argv]>0} {
+  set FILELIST $argv
+  set argv {}
+} else {
+  set FILELIST [lsort -dictionary [glob $testdir/*.test]]
+}
+
+foreach testfile $FILELIST {
+  set tail [file tail $testfile]
+  if {[lsearch -exact $EXCLUDE $tail]>=0} continue
+  set LeakList {}
+  for {set COUNTER 0} {$COUNTER<$COUNT} {incr COUNTER} {
+    source $testfile
+    if {[info exists Leak]} {
+      lappend LeakList $Leak
+    }
+  }
+  if {$LeakList!=""} {
+    puts -nonewline memory-leak-test-$tail...
+    incr_ntest
+    foreach x $LeakList {
+      if {$x!=[lindex $LeakList 0]} {
+         puts " failed! ($LeakList)"
+         fail_test memory-leak-test-$tail
+         break
+       }
+    }
+    puts " Ok"
+  }
+}
+memleak_finish_test
+
+# Run the malloc tests and the misuse test after memory leak detection.
+# Both tests leak memory.
+#
+#catch {source $testdir/misuse.test}
+#catch {source $testdir/malloc.test}
+
+memleak_finish_test
diff --git a/test/memsubsys1.test b/test/memsubsys1.test
new file mode 100644
index 0000000000000000000000000000000000000000..fda35a918bd7fb0fb8ce084d0e475ef17b1501a5
--- /dev/null
+++ b/test/memsubsys1.test
@@ -0,0 +1,189 @@
+# 2008 June 18
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains tests of the memory allocation subsystem
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+sqlite3_reset_auto_extension
+
+# This test assumes that no page-cache buffers are installed
+# by default when a new database connection is opened. As a result, it
+# will not work with the "memsubsys1" permutation.
+#
+if {[permutation] == "memsubsys1"} {
+  finish_test
+  return
+}
+
+test_set_config_pagecache 0 0
+
+# This procedure constructs a new database in test.db.  It fills
+# this database with many small records (enough to force multiple
+# rebalance operations in the btree-layer and to require a large
+# page cache), verifies correct results, then returns.
+#
+proc build_test_db {testname pragmas} {
+  catch {db close}
+  forcedelete test.db test.db-journal
+  sqlite3 db test.db
+  sqlite3_db_config_lookaside db 0 0 0
+  db eval $pragmas
+  db eval {
+    CREATE TABLE t1(x, y);
+    CREATE TABLE t2(a, b);
+    CREATE INDEX i1 ON t1(x,y);
+    INSERT INTO t1 VALUES(1, 100);
+    INSERT INTO t1 VALUES(2, 200);
+  }
+  for {set i 2} {$i<5000} {incr i $i} {
+    db eval {INSERT INTO t2 SELECT * FROM t1}
+    db eval {INSERT INTO t1 SELECT a+$i, a+b*100 FROM t2}
+    db eval {DELETE FROM t2}
+  }
+  do_test $testname.1 {
+    db eval {SELECT count(*) FROM t1}
+  } 8192
+  integrity_check $testname.2
+}
+
+# Reset all of the highwater marks.
+#
+proc reset_highwater_marks {} {
+  sqlite3_status SQLITE_STATUS_MEMORY_USED 1
+  sqlite3_status SQLITE_STATUS_MALLOC_SIZE 1
+  sqlite3_status SQLITE_STATUS_PAGECACHE_USED 1
+  sqlite3_status SQLITE_STATUS_PAGECACHE_OVERFLOW 1
+  sqlite3_status SQLITE_STATUS_PAGECACHE_SIZE 1
+  sqlite3_status SQLITE_STATUS_SCRATCH_USED 1
+  sqlite3_status SQLITE_STATUS_SCRATCH_OVERFLOW 1
+  sqlite3_status SQLITE_STATUS_SCRATCH_SIZE 1
+  sqlite3_status SQLITE_STATUS_PARSER_STACK 1
+}
+
+set xtra_size 290
+
+# Test 1:  Both PAGECACHE and SCRATCH are shut down.
+#
+db close
+sqlite3_shutdown
+sqlite3_config_lookaside 0 0
+sqlite3_config_pagecache 0 0
+sqlite3_initialize
+reset_highwater_marks
+build_test_db memsubsys1-1 {PRAGMA page_size=1024}
+do_test memsubsys1-1.3 {
+  set pg_used [lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_USED 0] 2]
+} 0
+do_test memsubsys1-1.4 {
+  set s_used [lindex [sqlite3_status SQLITE_STATUS_SCRATCH_USED 0] 2]
+} 0
+set max_pagecache [lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_OVERFLOW 0] 2]
+#show_memstats
+
+# Test 2:  Activate PAGECACHE with 20 pages
+#
+db close
+sqlite3_shutdown
+sqlite3_config_pagecache [expr 1024+$xtra_size] 20
+sqlite3_initialize
+reset_highwater_marks
+build_test_db memsubsys1-2 {PRAGMA page_size=1024; PRAGMA mmap_size=0}
+#show_memstats
+set MEMORY_MANAGEMENT $sqlite_options(memorymanage)
+ifcapable pagecache_overflow_stats {
+  ifcapable !malloc_usable_size {
+    do_test memsubsys1-2.3 {
+      set pg_ovfl [lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_OVERFLOW 0] 2]
+    } [expr ($TEMP_STORE>1 || $MEMORY_MANAGEMENT==0)*1024]
+  }
+}
+do_test memsubsys1-2.4 {
+  set pg_used [lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_USED 0] 2]
+} 20
+do_test memsubsys1-2.5 {
+  set s_used [lindex [sqlite3_status SQLITE_STATUS_SCRATCH_USED 0] 2]
+} 0
+
+# Test 3:  Activate PAGECACHE with 20 pages but use the wrong page size
+# so that PAGECACHE is not used.
+#
+db close
+sqlite3_shutdown
+sqlite3_config_pagecache [expr 512+$xtra_size] 20
+sqlite3_config singlethread
+sqlite3_initialize
+reset_highwater_marks
+build_test_db memsubsys1-3.1 {PRAGMA page_size=1024}
+do_test memsubsys1-3.1.3 {
+  set pg_used [lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_USED 0] 2]
+} 0
+do_test memsubsys1-3.1.4 {
+  set overflow [lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_OVERFLOW 0] 2]
+  # Note:  The measured PAGECACHE_OVERFLOW is amount malloc() returns, not what
+  # was requested.  System malloc() implementations might (arbitrarily) return
+  # slightly different oversize buffers, which can result in slightly different
+  # PAGECACHE_OVERFLOW sizes between consecutive runs.  So we cannot do an
+  # exact comparison.  Simply verify that the amount is within 5%.
+  expr {$overflow>=$max_pagecache*0.95 && $overflow<=$max_pagecache*1.05}
+} 1
+do_test memsubsys1-3.1.5 {
+  set s_used [lindex [sqlite3_status SQLITE_STATUS_SCRATCH_USED 0] 2]
+} 0
+db close
+sqlite3_shutdown
+sqlite3_config_pagecache [expr 2048+$xtra_size] 20
+sqlite3_initialize
+reset_highwater_marks
+build_test_db memsubsys1-3.2 {PRAGMA page_size=2048}
+#show_memstats
+do_test memsubsys1-3.2.3 {
+  db eval {PRAGMA page_size}
+} 2048
+do_test memsubsys1-3.2.4 {
+  set pg_used [lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_USED 0] 2]
+} 20
+do_test memsubsys1-3.2.5 {
+  set s_used [lindex [sqlite3_status SQLITE_STATUS_SCRATCH_USED 0] 2]
+} 0
+
+# Test 4:  Activate PAGECACHE
+#
+db close
+sqlite3_shutdown
+sqlite3_config_pagecache [expr 1024+$xtra_size] 50
+sqlite3_initialize
+reset_highwater_marks
+build_test_db memsubsys1-4 {PRAGMA page_size=1024}
+#show_memstats
+do_test memsubsys1-4.3 {
+  set pg_used [lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_USED 0] 2]
+  expr {$pg_used>=45 && $pg_used<=50}
+} 1
+do_test memsubsys1-4.4 {
+  set pg_ovfl [lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_OVERFLOW 0] 2]
+} 0
+do_test memsubsys1-4.5 {
+  set maxreq [lindex [sqlite3_status SQLITE_STATUS_MALLOC_SIZE 0] 2]
+  expr {$maxreq<9000}
+} 1
+
+db close
+sqlite3_shutdown
+sqlite3_config_memstatus 1
+sqlite3_config_lookaside 100 500
+sqlite3_config serialized
+sqlite3_initialize
+autoinstall_test_functions
+
+test_restore_config_pagecache
+finish_test
diff --git a/test/memsubsys2.test b/test/memsubsys2.test
new file mode 100644
index 0000000000000000000000000000000000000000..9085dd29527ea6ab6ed0341cab37855422187e2c
--- /dev/null
+++ b/test/memsubsys2.test
@@ -0,0 +1,181 @@
+# 2008 June 18
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains tests of the memory allocation subsystem.
+#
+# $Id: memsubsys2.test,v 1.2 2008/08/12 15:21:12 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+sqlite3_reset_auto_extension
+
+# This procedure constructs a new database in test.db.  It fills
+# this database with many small records (enough to force multiple
+# rebalance operations in the btree-layer and to require a large
+# page cache), verifies correct results, then returns.
+#
+proc build_test_db {testname pragmas} {
+  catch {db close}
+  forcedelete test.db test.db-journal
+  sqlite3 db test.db
+  db eval $pragmas
+  db eval {
+    CREATE TABLE t1(x, y);
+    CREATE TABLE t2(a, b);
+    CREATE INDEX i1 ON t1(x,y);
+    INSERT INTO t1 VALUES(1, 100);
+    INSERT INTO t1 VALUES(2, 200);
+  }
+  for {set i 2} {$i<5000} {incr i $i} {
+    db eval {INSERT INTO t2 SELECT * FROM t1}
+    db eval {INSERT INTO t1 SELECT a+$i, a+b*100 FROM t2}
+    db eval {DELETE FROM t2}
+  }
+  do_test $testname.1 {
+    db eval {SELECT count(*) FROM t1}
+  } 8192
+  integrity_check $testname.2
+}
+
+# Reset all of the highwater marks.
+#
+proc reset_highwater_marks {} {
+  sqlite3_status SQLITE_STATUS_MEMORY_USED 1
+  sqlite3_status SQLITE_STATUS_MALLOC_SIZE 1
+  sqlite3_status SQLITE_STATUS_PAGECACHE_USED 1
+  sqlite3_status SQLITE_STATUS_PAGECACHE_OVERFLOW 1
+  sqlite3_status SQLITE_STATUS_PAGECACHE_SIZE 1
+  sqlite3_status SQLITE_STATUS_SCRATCH_USED 1
+  sqlite3_status SQLITE_STATUS_SCRATCH_OVERFLOW 1
+  sqlite3_status SQLITE_STATUS_SCRATCH_SIZE 1
+  sqlite3_status SQLITE_STATUS_PARSER_STACK 1
+}
+
+# Test 1:  Verify that calling sqlite3_malloc(0) returns a NULL
+# pointer.
+#
+set highwater [sqlite3_memory_highwater 0]
+do_test memsubsys2-1.1 {
+  sqlite3_malloc 0
+} {0}
+do_test memsubsys2-1.2 {
+  sqlite3_memory_highwater 0
+} $highwater
+
+
+# Test 2:  Verify that the highwater mark increases after a large
+# allocation.
+#
+# Do not run this if [sqlite3_memory_used] returns 0. This indicates
+# an SQLITE_DEFAULT_MEMSTATUS=0 build.
+#
+if {[sqlite3_memory_used]!=0} {
+  sqlite3_memory_highwater 1
+  set highwater [sqlite3_memory_highwater 0]
+  do_test memsubsys2-2.1 {
+    sqlite3_free [set x [sqlite3_malloc 100000]]
+    expr {$x!="0"}
+  } {1}
+  do_test memsubsys2-2.2.1 {
+    expr {[sqlite3_memory_highwater 0]>=[sqlite3_memory_used]+100000}
+  } {1}
+  do_test memsubsys2-2.2.2 {
+    expr {[sqlite3_memory_highwater 0]>=$highwater+50000}
+  } {1}
+}
+
+# Test 3: Verify that turning of memstatus disables the statistics
+# tracking.
+#
+db close
+sqlite3_shutdown
+sqlite3_config_memstatus 0
+sqlite3_initialize
+reset_highwater_marks
+set highwater [sqlite3_memory_highwater 0]
+do_test memsubsys2-3.1 {
+  set highwater
+} {0}
+do_test memsubsys2-3.2 {
+  sqlite3_malloc 0
+} {0}
+do_test memsubsys2-3.3 {
+  sqlite3_memory_highwater 0
+} {0}
+do_test memsubsys2-3.4 {
+  sqlite3_memory_used
+} {0}
+do_test memsubsys2-3.5 {
+  set ::allocation [sqlite3_malloc 100000]
+  expr {$::allocation!="0"}
+} {1}
+do_test memsubsys2-3.6 {
+  sqlite3_memory_highwater 0
+} {0}
+do_test memsubsys2-3.7 {
+  sqlite3_memory_used
+} {0}
+do_test memsubsys2-3.8 {
+  sqlite3_free $::allocation
+} {}
+do_test memsubsys2-3.9 {
+  sqlite3_free 0
+} {}
+  
+
+# Test 4: Verify that turning on memstatus reenables the statistics
+# tracking.
+#
+sqlite3_shutdown
+sqlite3_config_memstatus 1
+sqlite3_initialize
+reset_highwater_marks
+set highwater [sqlite3_memory_highwater 0]
+do_test memsubsys2-4.1 {
+  set highwater
+} {0}
+do_test memsubsys2-4.2 {
+  sqlite3_malloc 0
+} {0}
+do_test memsubsys2-4.3 {
+  sqlite3_memory_highwater 0
+} {0}
+do_test memsubsys2-4.4 {
+  sqlite3_memory_used
+} {0}
+do_test memsubsys2-4.5 {
+  set ::allocation [sqlite3_malloc 100000]
+  expr {$::allocation!="0"}
+} {1}
+do_test memsubsys2-4.6 {
+  expr {[sqlite3_memory_highwater 0]>=100000}
+} {1}
+do_test memsubsys2-4.7 {
+  expr {[sqlite3_memory_used]>=100000}
+} {1}
+do_test memsubsys2-4.8 {
+  sqlite3_free $::allocation
+} {}
+do_test memsubsys2-4.9 {
+  sqlite3_free 0
+} {}
+do_test memsubsys2-4.10 {
+  expr {[sqlite3_memory_highwater 0]>=100000}
+} {1}
+do_test memsubsys2-4.11 {
+  sqlite3_memory_used
+} {0}
+  
+
+
+
+autoinstall_test_functions
+finish_test
diff --git a/test/merge1.test b/test/merge1.test
new file mode 100644
index 0000000000000000000000000000000000000000..686271648a212c2e4aa84fa19ab9b1499321646c
--- /dev/null
+++ b/test/merge1.test
@@ -0,0 +1,145 @@
+# 2021-12-29
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Testing the compound-SELECT merge algorithm to ensure that it works
+# when it tries to balance the merge tree.
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix merge1
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+load_static_extension db series
+
+
+optimization_control db all on
+do_execsql_test 100 {
+  WITH data(v) AS (
+    SELECT value FROM generate_series(1,35,3)
+    UNION ALL
+    SELECT value FROM generate_series(10,30,4)
+    UNION ALL
+    SELECT value FROM generate_series(20,50,5)
+    UNION ALL
+    SELECT value FROM generate_series(30,60,6)
+    UNION ALL
+    SELECT value FROM generate_series(1,50,7)
+    UNION ALL
+    SELECT value FROM generate_series(10,80,8)
+  )
+  SELECT v FROM data ORDER BY v;
+} {1 1 4 7 8 10 10 10 13 14 15 16 18 18 19 20 22 22 22 25 25 26 26 28 29 30 30 30 31 34 34 35 36 36 40 42 42 43 45 48 50 50 50 54 58 60 66 74}
+do_eqp_test 101 {
+  WITH data(v) AS (
+    SELECT value FROM generate_series(1,35,3)
+    UNION ALL
+    SELECT value FROM generate_series(10,30,4)
+    UNION ALL
+    SELECT value FROM generate_series(20,50,5)
+    UNION ALL
+    SELECT value FROM generate_series(30,60,6)
+    UNION ALL
+    SELECT value FROM generate_series(1,50,7)
+    UNION ALL
+    SELECT value FROM generate_series(10,80,8)
+  )
+  SELECT v FROM data ORDER BY v;
+} {
+  QUERY PLAN
+  `--MERGE (UNION ALL)
+     |--LEFT
+     |  `--MERGE (UNION ALL)
+     |     |--LEFT
+     |     |  `--MERGE (UNION ALL)
+     |     |     |--LEFT
+     |     |     |  `--SCAN generate_series VIRTUAL TABLE INDEX 0x17:
+     |     |     `--RIGHT
+     |     |        `--SCAN generate_series VIRTUAL TABLE INDEX 0x17:
+     |     `--RIGHT
+     |        `--SCAN generate_series VIRTUAL TABLE INDEX 0x17:
+     `--RIGHT
+        `--MERGE (UNION ALL)
+           |--LEFT
+           |  `--MERGE (UNION ALL)
+           |     |--LEFT
+           |     |  `--SCAN generate_series VIRTUAL TABLE INDEX 0x17:
+           |     `--RIGHT
+           |        `--SCAN generate_series VIRTUAL TABLE INDEX 0x17:
+           `--RIGHT
+              `--SCAN generate_series VIRTUAL TABLE INDEX 0x17:
+}
+
+# Same test with the blanced-merge optimization
+# disabled.  Should give the exact same answer.
+#
+optimization_control db balanced-merge off
+db cache flush
+do_execsql_test 110 {
+  WITH data(v) AS (
+    SELECT value FROM generate_series(1,35,3)
+    UNION ALL
+    SELECT value FROM generate_series(10,30,4)
+    UNION ALL
+    SELECT value FROM generate_series(20,50,5)
+    UNION ALL
+    SELECT value FROM generate_series(30,60,6)
+    UNION ALL
+    SELECT value FROM generate_series(1,50,7)
+    UNION ALL
+    SELECT value FROM generate_series(10,80,8)
+  )
+  SELECT v FROM data ORDER BY v;
+} {1 1 4 7 8 10 10 10 13 14 15 16 18 18 19 20 22 22 22 25 25 26 26 28 29 30 30 30 31 34 34 35 36 36 40 42 42 43 45 48 50 50 50 54 58 60 66 74}
+do_eqp_test 111 {
+  WITH data(v) AS (
+    SELECT value FROM generate_series(1,35,3)
+    UNION ALL
+    SELECT value FROM generate_series(10,30,4)
+    UNION ALL
+    SELECT value FROM generate_series(20,50,5)
+    UNION ALL
+    SELECT value FROM generate_series(30,60,6)
+    UNION ALL
+    SELECT value FROM generate_series(1,50,7)
+    UNION ALL
+    SELECT value FROM generate_series(10,80,8)
+  )
+  SELECT v FROM data ORDER BY v;
+} {
+  QUERY PLAN
+  `--MERGE (UNION ALL)
+     |--LEFT
+     |  `--MERGE (UNION ALL)
+     |     |--LEFT
+     |     |  `--MERGE (UNION ALL)
+     |     |     |--LEFT
+     |     |     |  `--MERGE (UNION ALL)
+     |     |     |     |--LEFT
+     |     |     |     |  `--MERGE (UNION ALL)
+     |     |     |     |     |--LEFT
+     |     |     |     |     |  `--SCAN generate_series VIRTUAL TABLE INDEX 0x17:
+     |     |     |     |     `--RIGHT
+     |     |     |     |        `--SCAN generate_series VIRTUAL TABLE INDEX 0x17:
+     |     |     |     `--RIGHT
+     |     |     |        `--SCAN generate_series VIRTUAL TABLE INDEX 0x17:
+     |     |     `--RIGHT
+     |     |        `--SCAN generate_series VIRTUAL TABLE INDEX 0x17:
+     |     `--RIGHT
+     |        `--SCAN generate_series VIRTUAL TABLE INDEX 0x17:
+     `--RIGHT
+        `--SCAN generate_series VIRTUAL TABLE INDEX 0x17:
+}
+
+finish_test
diff --git a/test/minmax.test b/test/minmax.test
new file mode 100644
index 0000000000000000000000000000000000000000..81bd46dbe2ef5dc20eb426d2b9f781f0f000c5ff
--- /dev/null
+++ b/test/minmax.test
@@ -0,0 +1,661 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing SELECT statements that contain
+# aggregate min() and max() functions and which are handled as
+# as a special case.
+#
+# $Id: minmax.test,v 1.21 2008/07/08 18:05:26 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix minmax
+
+do_test minmax-1.0 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t1(x, y);
+    INSERT INTO t1 VALUES(1,1);
+    INSERT INTO t1 VALUES(2,2);
+    INSERT INTO t1 VALUES(3,2);
+    INSERT INTO t1 VALUES(4,3);
+    INSERT INTO t1 VALUES(5,3);
+    INSERT INTO t1 VALUES(6,3);
+    INSERT INTO t1 VALUES(7,3);
+    INSERT INTO t1 VALUES(8,4);
+    INSERT INTO t1 VALUES(9,4);
+    INSERT INTO t1 VALUES(10,4);
+    INSERT INTO t1 VALUES(11,4);
+    INSERT INTO t1 VALUES(12,4);
+    INSERT INTO t1 VALUES(13,4);
+    INSERT INTO t1 VALUES(14,4);
+    INSERT INTO t1 VALUES(15,4);
+    INSERT INTO t1 VALUES(16,5);
+    INSERT INTO t1 VALUES(17,5);
+    INSERT INTO t1 VALUES(18,5);
+    INSERT INTO t1 VALUES(19,5);
+    INSERT INTO t1 VALUES(20,5);
+    COMMIT;
+    SELECT DISTINCT y FROM t1 ORDER BY y;
+  }
+} {1 2 3 4 5}
+
+do_test minmax-1.1 {
+  set sqlite_search_count 0
+  execsql {SELECT min(x) FROM t1}
+} {1}
+do_test minmax-1.2 {
+  set sqlite_search_count
+} {19}
+do_test minmax-1.3 {
+  set sqlite_search_count 0
+  execsql {SELECT max(x) FROM t1}
+} {20}
+do_test minmax-1.4 {
+  set sqlite_search_count
+} {19}
+do_test minmax-1.5 {
+  execsql {CREATE INDEX t1i1 ON t1(x)}
+  set sqlite_search_count 0
+  execsql {SELECT min(x) FROM t1}
+} {1}
+do_test minmax-1.6 {
+  set sqlite_search_count
+} {1}
+do_test minmax-1.7 {
+  set sqlite_search_count 0
+  execsql {SELECT max(x) FROM t1}
+} {20}
+do_test minmax-1.8 {
+  set sqlite_search_count
+} {0}
+do_test minmax-1.9 {
+  set sqlite_search_count 0
+  execsql {SELECT max(y) FROM t1}
+} {5}
+do_test minmax-1.10 {
+  set sqlite_search_count
+} {19}
+
+do_test minmax-1.21 {
+  execsql {SELECT min(x) FROM t1 WHERE x=5}
+} {5}
+do_test minmax-1.22 {
+  execsql {SELECT min(x) FROM t1 WHERE x>=5}
+} {5}
+do_test minmax-1.23 {
+  execsql {SELECT min(x) FROM t1 WHERE x>=4.5}
+} {5}
+do_test minmax-1.24 {
+  execsql {SELECT min(x) FROM t1 WHERE x<4.5}
+} {1}
+
+do_test minmax-2.0 {
+  execsql {
+    CREATE TABLE t2(a INTEGER PRIMARY KEY, b);
+    INSERT INTO t2 SELECT * FROM t1;
+  }
+  set sqlite_search_count 0
+  execsql {SELECT min(a) FROM t2}
+} {1}
+do_test minmax-2.1 {
+  set sqlite_search_count
+} {0}
+do_test minmax-2.2 {
+  set sqlite_search_count 0
+  execsql {SELECT max(a) FROM t2}
+} {20}
+do_test minmax-2.3 {
+  set sqlite_search_count
+} {0}
+
+do_test minmax-3.0 {
+  ifcapable subquery {
+    execsql {INSERT INTO t2 VALUES((SELECT max(a) FROM t2)+1,999)}
+  } else {
+    db function max_a_t2 {execsql {SELECT max(a) FROM t2}}
+    execsql {INSERT INTO t2 VALUES(max_a_t2()+1,999)}
+  }
+  set sqlite_search_count 0
+  execsql {SELECT max(a) FROM t2}
+} {21}
+do_test minmax-3.1 {
+  set sqlite_search_count
+} {0}
+do_test minmax-3.2 {
+  ifcapable subquery {
+    execsql {INSERT INTO t2 VALUES((SELECT max(a) FROM t2)+1,999)}
+  } else {
+    db function max_a_t2 {execsql {SELECT max(a) FROM t2}}
+    execsql {INSERT INTO t2 VALUES(max_a_t2()+1,999)}
+  }
+  set sqlite_search_count 0
+  ifcapable subquery {
+    execsql { SELECT b FROM t2 WHERE a=(SELECT max(a) FROM t2) }
+  } else {
+    execsql { SELECT b FROM t2 WHERE a=max_a_t2() }
+  }
+} {999}
+do_test minmax-3.3 {
+  set sqlite_search_count
+} {0}
+
+ifcapable {compound && subquery} {
+  do_test minmax-4.1 {
+    execsql {
+      SELECT coalesce(min(x+0),-1), coalesce(max(x+0),-1) FROM
+        (SELECT * FROM t1 UNION SELECT NULL as 'x', NULL as 'y')
+    }
+  } {1 20}
+  do_test minmax-4.2 {
+    execsql {
+      SELECT y, coalesce(sum(x),0) FROM
+        (SELECT null AS x, y+1 AS y FROM t1 UNION SELECT * FROM t1)
+      GROUP BY y ORDER BY y;
+    }
+  } {1 1 2 5 3 22 4 92 5 90 6 0}
+  do_test minmax-4.3 {
+    execsql {
+      SELECT y, count(x), count(*) FROM
+        (SELECT null AS x, y+1 AS y FROM t1 UNION SELECT * FROM t1)
+      GROUP BY y ORDER BY y;
+    }
+  } {1 1 1 2 2 3 3 4 5 4 8 9 5 5 6 6 0 1}
+} ;# ifcapable compound
+
+# Make sure the min(x) and max(x) optimizations work on empty tables
+# including empty tables with indices. Ticket #296.
+#
+do_test minmax-5.1 {
+  execsql {
+    CREATE TABLE t3(x INTEGER UNIQUE NOT NULL);
+    SELECT coalesce(min(x),999) FROM t3;
+  }
+} {999}
+do_test minmax-5.2 {
+  execsql {
+    SELECT coalesce(min(rowid),999) FROM t3;
+  }
+} {999}
+do_test minmax-5.3 {
+  execsql {
+    SELECT coalesce(max(x),999) FROM t3;
+  }
+} {999}
+do_test minmax-5.4 {
+  execsql {
+    SELECT coalesce(max(rowid),999) FROM t3;
+  }
+} {999}
+do_test minmax-5.5 {
+  execsql {
+    SELECT coalesce(max(rowid),999) FROM t3 WHERE rowid<25;
+  }
+} {999}
+
+# Make sure the min(x) and max(x) optimizations work when there
+# is a LIMIT clause.  Ticket #396.
+#
+do_test minmax-6.1 {
+  execsql {
+    SELECT min(a) FROM t2 LIMIT 1
+  }
+} {1}
+do_test minmax-6.2 {
+  execsql {
+    SELECT max(a) FROM t2 LIMIT 3
+  }
+} {22}
+do_test minmax-6.3 {
+  execsql {
+    SELECT min(a) FROM t2 LIMIT 0,100
+  }
+} {1}
+do_test minmax-6.4 {
+  execsql {
+    SELECT max(a) FROM t2 LIMIT 1,100
+  }
+} {}
+do_test minmax-6.5 {
+  execsql {
+    SELECT min(x) FROM t3 LIMIT 1
+  }
+} {{}}
+do_test minmax-6.6 {
+  execsql {
+    SELECT max(x) FROM t3 LIMIT 0
+  }
+} {}
+do_test minmax-6.7 {
+  execsql {
+    SELECT max(a) FROM t2 LIMIT 0
+  }
+} {}
+
+# Make sure the max(x) and min(x) optimizations work for nested
+# queries.  Ticket #587.
+#
+do_test minmax-7.1 {
+  execsql {
+    SELECT max(x) FROM t1;
+  }
+} 20
+ifcapable subquery {
+  do_test minmax-7.2 {
+    execsql {
+      SELECT * FROM (SELECT max(x) FROM t1);
+    }
+  } 20
+}
+do_test minmax-7.3 {
+  execsql {
+    SELECT min(x) FROM t1;
+  }
+} 1
+ifcapable subquery {
+  do_test minmax-7.4 {
+    execsql {
+      SELECT * FROM (SELECT min(x) FROM t1);
+    }
+  } 1
+}
+
+# Make sure min(x) and max(x) work correctly when the datatype is
+# TEXT instead of NUMERIC.  Ticket #623.
+#
+do_test minmax-8.1 {
+  execsql {
+    CREATE TABLE t4(a TEXT);
+    INSERT INTO t4 VALUES('1234');
+    INSERT INTO t4 VALUES('234');
+    INSERT INTO t4 VALUES('34');
+    SELECT min(a), max(a) FROM t4;
+  }
+} {1234 34}
+do_test minmax-8.2 {
+  execsql {
+    CREATE TABLE t5(a INTEGER);
+    INSERT INTO t5 VALUES('1234');
+    INSERT INTO t5 VALUES('234');
+    INSERT INTO t5 VALUES('34');
+    SELECT min(a), max(a) FROM t5;
+  }
+} {34 1234}
+
+# Ticket #658:  Test the min()/max() optimization when the FROM clause
+# is a subquery.
+#
+ifcapable {compound && subquery} {
+  do_test minmax-9.0 {
+    execsql {
+      SELECT max(rowid) AS yy FROM t4 UNION SELECT max(rowid) FROM t5
+    }
+  } {3}
+  do_test minmax-9.1 {
+    execsql {
+      SELECT max(yy) FROM (
+        SELECT max(rowid) AS yy FROM t4 UNION SELECT max(rowid) FROM t5
+      )
+    }
+  } {3}
+  do_test minmax-9.2 {
+    execsql {
+      SELECT max(yy) FROM (
+        SELECT max(rowid) AS yy FROM t4 EXCEPT SELECT max(rowid) FROM t5
+      )
+    }
+  } {{}}
+} ;# ifcapable compound&&subquery
+
+# If there is a NULL in an aggregate max() or min(), ignore it.  An
+# aggregate min() or max() will only return NULL if all values are NULL.
+#
+do_test minmax-10.1 {
+  execsql {
+    CREATE TABLE t6(x);
+    INSERT INTO t6 VALUES(1);
+    INSERT INTO t6 VALUES(2);
+    INSERT INTO t6 VALUES(NULL);
+    SELECT coalesce(min(x),-1) FROM t6;
+  }
+} {1}
+do_test minmax-10.2 {
+  execsql {
+    SELECT max(x) FROM t6;
+  }
+} {2}
+do_test minmax-10.3 {
+  execsql {
+    CREATE INDEX i6 ON t6(x);
+    SELECT coalesce(min(x),-1) FROM t6;
+  }
+} {1}
+do_test minmax-10.4 {
+  execsql {
+    SELECT max(x) FROM t6;
+  }
+} {2}
+do_test minmax-10.5 {
+  execsql {
+    DELETE FROM t6 WHERE x NOT NULL;
+    SELECT count(*) FROM t6;
+  }
+} 1
+do_test minmax-10.6 {
+  execsql {
+    SELECT count(x) FROM t6;
+  }
+} 0
+ifcapable subquery {
+  do_test minmax-10.7 {
+    execsql {
+      SELECT (SELECT min(x) FROM t6), (SELECT max(x) FROM t6);
+    }
+  } {{} {}}
+}
+do_test minmax-10.8 {
+  execsql {
+    SELECT min(x), max(x) FROM t6;
+  }
+} {{} {}}
+do_test minmax-10.9 {
+  execsql {
+    INSERT INTO t6 SELECT * FROM t6;
+    INSERT INTO t6 SELECT * FROM t6;
+    INSERT INTO t6 SELECT * FROM t6;
+    INSERT INTO t6 SELECT * FROM t6;
+    INSERT INTO t6 SELECT * FROM t6;
+    INSERT INTO t6 SELECT * FROM t6;
+    INSERT INTO t6 SELECT * FROM t6;
+    INSERT INTO t6 SELECT * FROM t6;
+    INSERT INTO t6 SELECT * FROM t6;
+    INSERT INTO t6 SELECT * FROM t6;
+    SELECT count(*) FROM t6;
+  }
+} 1024
+do_test minmax-10.10 {
+  execsql {
+    SELECT count(x) FROM t6;
+  }
+} 0
+ifcapable subquery {
+  do_test minmax-10.11 {
+    execsql {
+      SELECT (SELECT min(x) FROM t6), (SELECT max(x) FROM t6);
+    }
+  } {{} {}}
+}
+do_test minmax-10.12 {
+  execsql {
+    SELECT min(x), max(x) FROM t6;
+  }
+} {{} {}}
+
+
+do_test minmax-11.1 {
+  execsql {
+    CREATE INDEX t1i2 ON t1(y,x);
+    SELECT min(x) FROM t1 WHERE y=5;
+  }
+} {16}
+do_test minmax-11.2 {
+  execsql {
+    SELECT max(x) FROM t1 WHERE y=5;
+  }
+} {20}
+do_test minmax-11.3 {
+  execsql {
+    SELECT min(x) FROM t1 WHERE y=6;
+  }
+} {{}}
+do_test minmax-11.4 {
+  execsql {
+    SELECT max(x) FROM t1 WHERE y=6;
+  }
+} {{}}
+do_test minmax-11.5 {
+  execsql {
+    SELECT min(x) FROM t1 WHERE y=1;
+  }
+} {1}
+do_test minmax-11.6 {
+  execsql {
+    SELECT max(x) FROM t1 WHERE y=1;
+  }
+} {1}
+do_test minmax-11.7 {
+  execsql {
+    SELECT min(x) FROM t1 WHERE y=0;
+  }
+} {{}}
+do_test minmax-11.8 {
+  execsql {
+    SELECT max(x) FROM t1 WHERE y=0;
+  }
+} {{}}
+do_test minmax-11.9 {
+  execsql {
+    SELECT min(x) FROM t1 WHERE y=5 AND x>=17.5;
+  }
+} {18}
+do_test minmax-11.10 {
+  execsql {
+    SELECT max(x) FROM t1 WHERE y=5 AND x>=17.5;
+  }
+} {20}
+
+do_test minmax-12.1 {
+  execsql {
+    CREATE TABLE t7(a,b,c);
+    INSERT INTO t7 SELECT y, x, x*y FROM t1;
+    INSERT INTO t7 SELECT y, x, x*y+1000 FROM t1;
+    CREATE INDEX t7i1 ON t7(a,b,c);
+    SELECT min(a) FROM t7;
+  }
+} {1}
+do_test minmax-12.2 {
+  execsql {
+    SELECT max(a) FROM t7;
+  }
+} {5}
+do_test minmax-12.3 {
+  execsql {
+    SELECT max(a) FROM t7 WHERE a=5;
+  }
+} {5}
+do_test minmax-12.4 {
+  execsql {
+    SELECT min(b) FROM t7 WHERE a=5;
+  }
+} {16}
+do_test minmax-12.5 {
+  execsql {
+    SELECT max(b) FROM t7 WHERE a=5;
+  }
+} {20}
+do_test minmax-12.6 {
+  execsql {
+    SELECT min(b) FROM t7 WHERE a=4;
+  }
+} {8}
+do_test minmax-12.7 {
+  execsql {
+    SELECT max(b) FROM t7 WHERE a=4;
+  }
+} {15}
+do_test minmax-12.8 {
+  execsql {
+    SELECT min(c) FROM t7 WHERE a=4 AND b=10;
+  }
+} {40}
+do_test minmax-12.9 {
+  execsql {
+    SELECT max(c) FROM t7 WHERE a=4 AND b=10;
+  }
+} {1040}
+do_test minmax-12.10 {
+  execsql {
+    SELECT min(rowid) FROM t7;
+  }
+} {1}
+do_test minmax-12.11 {
+  execsql {
+    SELECT max(rowid) FROM t7;
+  }
+} {40}
+do_test minmax-12.12 {
+  execsql {
+    SELECT min(rowid) FROM t7 WHERE a=3;
+  }
+} {4}
+do_test minmax-12.13 {
+  execsql {
+    SELECT max(rowid) FROM t7 WHERE a=3;
+  }
+} {27}
+do_test minmax-12.14 {
+  execsql {
+    SELECT min(rowid) FROM t7 WHERE a=3 AND b=5;
+  }
+} {5}
+do_test minmax-12.15 {
+  execsql {
+    SELECT max(rowid) FROM t7 WHERE a=3 AND b=5;
+  }
+} {25}
+do_test minmax-12.16 {
+  execsql {
+    SELECT min(rowid) FROM t7 WHERE a=3 AND b=5 AND c=1015;
+  }
+} {25}
+do_test minmax-12.17 {
+  execsql {
+    SELECT max(rowid) FROM t7 WHERE a=3 AND b=5 AND c=15;
+  }
+} {5}
+
+#-------------------------------------------------------------------------
+reset_db
+
+proc do_test_13 {op name sql1 sql2 res} {
+  set ::sqlite_search_count 0
+  uplevel [list do_execsql_test $name.1 $sql1 $res]
+  set a $::sqlite_search_count
+
+  set ::sqlite_search_count 0
+  uplevel [list do_execsql_test $name.2 $sql2 $res]
+  set b $::sqlite_search_count
+
+  uplevel [list do_test $name.3 [list expr "$a $op $b"] 1]
+}
+
+# Run a test named $name. Check that SQL statements $sql1 and $sql2 both
+# return the same result, but that $sql2 increments the $sqlite_search_count
+# variable more often (indicating that it is visiting more rows to determine
+# the result).
+#
+proc do_test_13_opt {name sql1 sql2 res} {
+  uplevel [list do_test_13 < $name $sql1 $sql2 $res]
+}
+
+# Like [do_test_13_noopt], except this time check that the $sqlite_search_count
+# variable is incremented the same number of times by both SQL statements.
+#
+proc do_test_13_noopt {name sql1 sql2 res} {
+  uplevel [list do_test_13 == $name $sql1 $sql2 $res]
+}
+
+do_execsql_test 13.1 {
+  CREATE TABLE t1(a, b, c);
+  INSERT INTO t1 VALUES('a', 1, 1);
+  INSERT INTO t1 VALUES('b', 6, 6);
+  INSERT INTO t1 VALUES('c', 5, 5);
+  INSERT INTO t1 VALUES('a', 4, 4);
+  INSERT INTO t1 VALUES('a', 5, 5);
+  INSERT INTO t1 VALUES('c', 6, 6);
+  INSERT INTO t1 VALUES('b', 4, 4);
+  INSERT INTO t1 VALUES('c', 7, 7);
+  INSERT INTO t1 VALUES('b', 2, 2);
+  INSERT INTO t1 VALUES('b', 3, 3);
+  INSERT INTO t1 VALUES('a', 3, 3);
+  INSERT INTO t1 VALUES('b', 5, 5);
+  INSERT INTO t1 VALUES('c', 4, 4);
+  INSERT INTO t1 VALUES('c', 3, 3);
+  INSERT INTO t1 VALUES('a', 2, 2);
+  SELECT * FROM t1 ORDER BY a, b, c;
+} {a 1 1 a 2 2 a 3 3 a 4 4 a 5 5
+   b 2 2 b 3 3 b 4 4 b 5 5 b 6 6
+   c 3 3 c 4 4 c 5 5 c 6 6 c 7 7
+}
+do_execsql_test 13.2 { CREATE INDEX i1 ON t1(a, b, c) }
+
+do_test_13_opt 13.3 {
+  SELECT min(b) FROM t1 WHERE a='b'
+} {
+  SELECT min(c) FROM t1 WHERE a='b'
+} {2}
+
+do_test_13_opt 13.4 {
+  SELECT a, min(b) FROM t1 WHERE a='b'
+} {
+  SELECT a, min(c) FROM t1 WHERE a='b'
+} {b 2}
+
+do_test_13_opt 13.4 {
+  SELECT a||c, max(b)+4 FROM t1 WHERE a='c'
+} {
+  SELECT a||c, max(c)+4 FROM t1 WHERE a='c'
+} {c7 11}
+
+do_test_13_noopt 13.5 {
+  SELECT a||c, max(b+1) FROM t1 WHERE a='c'
+} {
+  SELECT a||c, max(c+1) FROM t1 WHERE a='c'
+} {c7 8}
+
+do_test_13_noopt 13.6 {
+  SELECT count(b) FROM t1 WHERE a='c'
+} {
+  SELECT count(c) FROM t1 WHERE a='c'
+} {5}
+
+do_test_13_noopt 13.7 {
+  SELECT min(b), count(b) FROM t1 WHERE a='a';
+} {
+  SELECT min(c), count(c) FROM t1 WHERE a='a';
+} {1 5}
+
+# 2016-07-26.  https://www.sqlite.org/src/info/a0bac8b3c3d1bb75
+# Incorrect result on a min() query after a CREATE INDEX.
+#
+do_execsql_test 14.1 {
+  CREATE TABLE t14(a INTEGER, b INTEGER);
+  INSERT INTO t14(a,b) VALUES(100,2),(200,2),(300,2),(400,1),(500,2);
+  SELECT min(a) FROM t14 WHERE b='2' AND a>'50';
+} {100}
+do_execsql_test 14.2 {
+  CREATE INDEX t14ba ON t14(b,a);
+  SELECT min(a) FROM t14 WHERE b='2' AND a>'50';
+} {100}
+
+# 2021-08-21.  https://sqlite.org/forum/forumpost/cfcb4b461d
+# 
+reset_db
+do_execsql_test 15.1 {
+  CREATE TABLE t1(a);
+  CREATE TABLE t2(b);
+  CREATE TABLE t3(c);
+  INSERT INTO t1 VALUES(0);
+  INSERT INTO t2 VALUES(5);
+  SELECT MIN((SELECT b FROM t2 UNION SELECT x FROM (SELECT x FROM (SELECT 1 AS x WHERE t1.a=1) UNION ALL SELECT c FROM t3))) FROM t1;
+} {5}
+
+finish_test
diff --git a/test/minmax2.test b/test/minmax2.test
new file mode 100644
index 0000000000000000000000000000000000000000..9ea6b679c62e15989117b20add82ba2105b58212
--- /dev/null
+++ b/test/minmax2.test
@@ -0,0 +1,426 @@
+# 2007 July 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing SELECT statements that contain
+# aggregate min() and max() functions and which are handled as
+# as a special case.  This file makes sure that the min/max
+# optimization works right in the presence of descending
+# indices.  Ticket #2514.
+#
+# $Id: minmax2.test,v 1.2 2008/01/05 17:39:30 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test minmax2-1.0 {
+  sqlite3_db_config db LEGACY_FILE_FORMAT 0
+  execsql {
+    BEGIN;
+    CREATE TABLE t1(x, y);
+    INSERT INTO t1 VALUES(1,1);
+    INSERT INTO t1 VALUES(2,2);
+    INSERT INTO t1 VALUES(3,2);
+    INSERT INTO t1 VALUES(4,3);
+    INSERT INTO t1 VALUES(5,3);
+    INSERT INTO t1 VALUES(6,3);
+    INSERT INTO t1 VALUES(7,3);
+    INSERT INTO t1 VALUES(8,4);
+    INSERT INTO t1 VALUES(9,4);
+    INSERT INTO t1 VALUES(10,4);
+    INSERT INTO t1 VALUES(11,4);
+    INSERT INTO t1 VALUES(12,4);
+    INSERT INTO t1 VALUES(13,4);
+    INSERT INTO t1 VALUES(14,4);
+    INSERT INTO t1 VALUES(15,4);
+    INSERT INTO t1 VALUES(16,5);
+    INSERT INTO t1 VALUES(17,5);
+    INSERT INTO t1 VALUES(18,5);
+    INSERT INTO t1 VALUES(19,5);
+    INSERT INTO t1 VALUES(20,5);
+    COMMIT;
+    SELECT DISTINCT y FROM t1 ORDER BY y;
+  }
+} {1 2 3 4 5}
+
+do_test minmax2-1.1 {
+  set sqlite_search_count 0
+  execsql {SELECT min(x) FROM t1}
+} {1}
+do_test minmax2-1.2 {
+  set sqlite_search_count
+} {19}
+do_test minmax2-1.3 {
+  set sqlite_search_count 0
+  execsql {SELECT max(x) FROM t1}
+} {20}
+do_test minmax2-1.4 {
+  set sqlite_search_count
+} {19}
+do_test minmax2-1.5 {
+  execsql {CREATE INDEX t1i1 ON t1(x DESC)}
+  set sqlite_search_count 0
+  execsql {SELECT min(x) FROM t1}
+} {1}
+do_test minmax2-1.6 {
+  set sqlite_search_count
+} {1}
+do_test minmax2-1.7 {
+  set sqlite_search_count 0
+  execsql {SELECT max(x) FROM t1}
+} {20}
+do_test minmax2-1.8 {
+  set sqlite_search_count
+} {0}
+do_test minmax2-1.9 {
+  set sqlite_search_count 0
+  execsql {SELECT max(y) FROM t1}
+} {5}
+do_test minmax2-1.10 {
+  set sqlite_search_count
+} {19}
+
+do_test minmax2-2.0 {
+  execsql {
+    CREATE TABLE t2(a INTEGER PRIMARY KEY, b);
+    INSERT INTO t2 SELECT * FROM t1;
+  }
+  set sqlite_search_count 0
+  execsql {SELECT min(a) FROM t2}
+} {1}
+do_test minmax2-2.1 {
+  set sqlite_search_count
+} {0}
+do_test minmax2-2.2 {
+  set sqlite_search_count 0
+  execsql {SELECT max(a) FROM t2}
+} {20}
+do_test minmax2-2.3 {
+  set sqlite_search_count
+} {0}
+
+do_test minmax2-3.0 {
+  ifcapable subquery {
+    execsql {INSERT INTO t2 VALUES((SELECT max(a) FROM t2)+1,999)}
+  } else {
+    db function max_a_t2 {execsql {SELECT max(a) FROM t2}}
+    execsql {INSERT INTO t2 VALUES(max_a_t2()+1,999)}
+  }
+  set sqlite_search_count 0
+  execsql {SELECT max(a) FROM t2}
+} {21}
+do_test minmax2-3.1 {
+  set sqlite_search_count
+} {0}
+do_test minmax2-3.2 {
+  ifcapable subquery {
+    execsql {INSERT INTO t2 VALUES((SELECT max(a) FROM t2)+1,999)}
+  } else {
+    db function max_a_t2 {execsql {SELECT max(a) FROM t2}}
+    execsql {INSERT INTO t2 VALUES(max_a_t2()+1,999)}
+  }
+  set sqlite_search_count 0
+  ifcapable subquery {
+    execsql { SELECT b FROM t2 WHERE a=(SELECT max(a) FROM t2) }
+  } else {
+    execsql { SELECT b FROM t2 WHERE a=max_a_t2() }
+  }
+} {999}
+do_test minmax2-3.3 {
+  set sqlite_search_count
+} {0}
+
+ifcapable {compound && subquery} {
+  do_test minmax2-4.1 {
+    execsql {
+      SELECT coalesce(min(x+0),-1), coalesce(max(x+0),-1) FROM
+        (SELECT * FROM t1 UNION SELECT NULL as 'x', NULL as 'y')
+    }
+  } {1 20}
+  do_test minmax2-4.2 {
+    execsql {
+      SELECT y, coalesce(sum(x),0) FROM
+        (SELECT null AS x, y+1 AS y FROM t1 UNION SELECT * FROM t1)
+      GROUP BY y ORDER BY y;
+    }
+  } {1 1 2 5 3 22 4 92 5 90 6 0}
+  do_test minmax2-4.3 {
+    execsql {
+      SELECT y, count(x), count(*) FROM
+        (SELECT null AS x, y+1 AS y FROM t1 UNION SELECT * FROM t1)
+      GROUP BY y ORDER BY y;
+    }
+  } {1 1 1 2 2 3 3 4 5 4 8 9 5 5 6 6 0 1}
+} ;# ifcapable compound
+
+# Make sure the min(x) and max(x) optimizations work on empty tables
+# including empty tables with indices. Ticket #296.
+#
+do_test minmax2-5.1 {
+  execsql {
+    CREATE TABLE t3(x INTEGER UNIQUE NOT NULL);
+    SELECT coalesce(min(x),999) FROM t3;
+  }
+} {999}
+do_test minmax2-5.2 {
+  execsql {
+    SELECT coalesce(min(rowid),999) FROM t3;
+  }
+} {999}
+do_test minmax2-5.3 {
+  execsql {
+    SELECT coalesce(max(x),999) FROM t3;
+  }
+} {999}
+do_test minmax2-5.4 {
+  execsql {
+    SELECT coalesce(max(rowid),999) FROM t3;
+  }
+} {999}
+do_test minmax2-5.5 {
+  execsql {
+    SELECT coalesce(max(rowid),999) FROM t3 WHERE rowid<25;
+  }
+} {999}
+
+# Make sure the min(x) and max(x) optimizations work when there
+# is a LIMIT clause.  Ticket #396.
+#
+do_test minmax2-6.1 {
+  execsql {
+    SELECT min(a) FROM t2 LIMIT 1
+  }
+} {1}
+do_test minmax2-6.2 {
+  execsql {
+    SELECT max(a) FROM t2 LIMIT 3
+  }
+} {22}
+do_test minmax2-6.3 {
+  execsql {
+    SELECT min(a) FROM t2 LIMIT 0,100
+  }
+} {1}
+do_test minmax2-6.4 {
+  execsql {
+    SELECT max(a) FROM t2 LIMIT 1,100
+  }
+} {}
+do_test minmax2-6.5 {
+  execsql {
+    SELECT min(x) FROM t3 LIMIT 1
+  }
+} {{}}
+do_test minmax2-6.6 {
+  execsql {
+    SELECT max(x) FROM t3 LIMIT 0
+  }
+} {}
+do_test minmax2-6.7 {
+  execsql {
+    SELECT max(a) FROM t2 LIMIT 0
+  }
+} {}
+
+# Make sure the max(x) and min(x) optimizations work for nested
+# queries.  Ticket #587.
+#
+do_test minmax2-7.1 {
+  execsql {
+    SELECT max(x) FROM t1;
+  }
+} 20
+ifcapable subquery {
+  do_test minmax2-7.2 {
+    execsql {
+      SELECT * FROM (SELECT max(x) FROM t1);
+    }
+  } 20
+}
+do_test minmax2-7.3 {
+  execsql {
+    SELECT min(x) FROM t1;
+  }
+} 1
+ifcapable subquery {
+  do_test minmax2-7.4 {
+    execsql {
+      SELECT * FROM (SELECT min(x) FROM t1);
+    }
+  } 1
+}
+
+# Make sure min(x) and max(x) work correctly when the datatype is
+# TEXT instead of NUMERIC.  Ticket #623.
+#
+do_test minmax2-8.1 {
+  execsql {
+    CREATE TABLE t4(a TEXT);
+    INSERT INTO t4 VALUES('1234');
+    INSERT INTO t4 VALUES('234');
+    INSERT INTO t4 VALUES('34');
+    SELECT min(a), max(a) FROM t4;
+  }
+} {1234 34}
+do_test minmax2-8.2 {
+  execsql {
+    CREATE TABLE t5(a INTEGER);
+    INSERT INTO t5 VALUES('1234');
+    INSERT INTO t5 VALUES('234');
+    INSERT INTO t5 VALUES('34');
+    SELECT min(a), max(a) FROM t5;
+  }
+} {34 1234}
+
+# Ticket #658:  Test the min()/max() optimization when the FROM clause
+# is a subquery.
+#
+ifcapable {compound && subquery} {
+  do_test minmax2-9.0 {
+    execsql {
+      SELECT max(rowid) FROM t4 UNION SELECT max(rowid) FROM t5
+    }
+  } {3}
+  do_test minmax2-9.1 {
+    execsql {
+      SELECT max(yy) FROM (
+        SELECT max(rowid) AS yy FROM t4 UNION SELECT max(rowid) FROM t5
+      )
+    }
+  } {3}
+  do_test minmax2-9.2 {
+    execsql {
+      SELECT max(yy) FROM (
+        SELECT max(rowid) AS yy FROM t4 EXCEPT SELECT max(rowid) FROM t5
+      )
+    }
+  } {{}}
+} ;# ifcapable compound&&subquery
+
+# If there is a NULL in an aggregate max() or min(), ignore it.  An
+# aggregate min() or max() will only return NULL if all values are NULL.
+#
+do_test minmax2-10.1 {
+  execsql {
+    CREATE TABLE t6(x);
+    INSERT INTO t6 VALUES(1);
+    INSERT INTO t6 VALUES(2);
+    INSERT INTO t6 VALUES(NULL);
+    SELECT coalesce(min(x),-1) FROM t6;
+  }
+} {1}
+do_test minmax2-10.2 {
+  execsql {
+    SELECT max(x) FROM t6;
+  }
+} {2}
+do_test minmax2-10.3 {
+  execsql {
+    CREATE INDEX i6 ON t6(x DESC);
+    SELECT coalesce(min(x),-1) FROM t6;
+  }
+} {1}
+do_test minmax2-10.4 {
+  execsql {
+    SELECT max(x) FROM t6;
+  }
+} {2}
+do_test minmax2-10.5 {
+  execsql {
+    DELETE FROM t6 WHERE x NOT NULL;
+    SELECT count(*) FROM t6;
+  }
+} 1
+do_test minmax2-10.6 {
+  execsql {
+    SELECT count(x) FROM t6;
+  }
+} 0
+ifcapable subquery {
+  do_test minmax2-10.7 {
+    execsql {
+      SELECT (SELECT min(x) FROM t6), (SELECT max(x) FROM t6);
+    }
+  } {{} {}}
+}
+do_test minmax2-10.8 {
+  execsql {
+    SELECT min(x), max(x) FROM t6;
+  }
+} {{} {}}
+do_test minmax2-10.9 {
+  execsql {
+    INSERT INTO t6 SELECT * FROM t6;
+    INSERT INTO t6 SELECT * FROM t6;
+    INSERT INTO t6 SELECT * FROM t6;
+    INSERT INTO t6 SELECT * FROM t6;
+    INSERT INTO t6 SELECT * FROM t6;
+    INSERT INTO t6 SELECT * FROM t6;
+    INSERT INTO t6 SELECT * FROM t6;
+    INSERT INTO t6 SELECT * FROM t6;
+    INSERT INTO t6 SELECT * FROM t6;
+    INSERT INTO t6 SELECT * FROM t6;
+    SELECT count(*) FROM t6;
+  }
+} 1024
+do_test minmax2-10.10 {
+  execsql {
+    SELECT count(x) FROM t6;
+  }
+} 0
+ifcapable subquery {
+  do_test minmax2-10.11 {
+    execsql {
+      SELECT (SELECT min(x) FROM t6), (SELECT max(x) FROM t6);
+    }
+  } {{} {}}
+}
+do_test minmax2-10.12 {
+  execsql {
+    SELECT min(x), max(x) FROM t6;
+  }
+} {{} {}}
+
+# 2017-10-26.  Extend the min/max optimization to indexes on expressions
+#
+do_execsql_test minmax2-11.100 {
+  CREATE TABLE t11(a,b,c);
+  INSERT INTO t11(a,b,c) VALUES(1,10,5),(2,8,11),(3,1,4),(4,20,1),(5,16,4);
+  CREATE INDEX t11bc ON t11(b+c);
+  SELECT max(b+c) FROM t11;
+} {21}
+do_execsql_test minmax2-11.110 {
+  SELECT a, max(b+c) FROM t11;
+} {4 21}
+do_test minmax2-11.111 {
+  db eval {SELECT max(b+c) FROM t11}
+  db status step
+} {0}
+do_test minmax2-11.112 {
+  db eval {SELECT max(c+b) FROM t11}
+  db status step
+} {4}
+do_execsql_test minmax2-11.120 {
+  SELECT a, min(b+c) FROM t11;
+} {3 5}
+do_test minmax2-11.121 {
+  db eval {SELECT min(b+c) FROM t11}
+  db status step
+} {0}
+do_test minmax2-11.122 {
+  db eval {SELECT min(c+b) FROM t11}
+  db status step
+} {4}
+do_execsql_test minmax2-11.130 {
+  INSERT INTO t11(a,b,c) VALUES(6,NULL,0),(7,0,NULL);
+  SELECT a, min(b+c) FROM t11;
+} {3 5}
+
+finish_test
diff --git a/test/minmax3.test b/test/minmax3.test
new file mode 100644
index 0000000000000000000000000000000000000000..483fa612d27d41f2c2fdb6c84cbf491f04279d16
--- /dev/null
+++ b/test/minmax3.test
@@ -0,0 +1,288 @@
+# 2008 January 5
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# $Id: minmax3.test,v 1.5 2008/07/12 14:52:20 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Do not use a codec for tests in this file, as the database file is
+# manipulated directly using tcl scripts (using the [hexio_write] command).
+#
+do_not_use_codec
+
+# Do an SQL statement.  Append the search count to the end of the result.
+#
+proc count sql {
+  set ::sqlite_search_count 0
+  return [concat [execsql $sql] $::sqlite_search_count]
+}
+
+# This procedure sets the value of the file-format in file 'test.db'
+# to $newval. Also, the schema cookie is incremented.
+# 
+proc set_file_format {newval} {
+  hexio_write test.db 44 [hexio_render_int32 $newval]
+  set schemacookie [hexio_get_int [hexio_read test.db 40 4]]
+  incr schemacookie
+  hexio_write test.db 40 [hexio_render_int32 $schemacookie]
+  return {}
+}
+
+do_test minmax3-1.0 {
+  execsql {
+    CREATE TABLE t1(x, y, z);
+  }
+  db close
+  set_file_format 4
+  sqlite3 db test.db
+  execsql {
+    BEGIN;
+    INSERT INTO t1 VALUES('1', 'I',   'one');
+    INSERT INTO t1 VALUES('2', 'IV',  'four');
+    INSERT INTO t1 VALUES('2', NULL,  'three');
+    INSERT INTO t1 VALUES('2', 'II',  'two');
+    INSERT INTO t1 VALUES('2', 'V',   'five');
+    INSERT INTO t1 VALUES('3', 'VI',  'six');
+    COMMIT;
+    PRAGMA automatic_index=OFF;
+  }
+} {}
+do_test minmax3-1.1.1 {
+  # Linear scan.
+  count { SELECT max(y) FROM t1 WHERE x = '2'; }
+} {V 5}
+do_test minmax3-1.1.2 {
+  # Index optimizes the WHERE x='2' constraint.
+  execsql { CREATE INDEX i1 ON t1(x) }
+  count   { SELECT max(y) FROM t1 WHERE x = '2'; }
+} {V 9}
+do_test minmax3-1.1.3 {
+  # Index optimizes the WHERE x='2' constraint and the MAX(y).
+  execsql { CREATE INDEX i2 ON t1(x,y) }
+  count   { SELECT max(y) FROM t1 WHERE x = '2'; }
+} {V 1}
+do_test minmax3-1.1.4 {
+  # Index optimizes the WHERE x='2' constraint and the MAX(y).
+  execsql { DROP INDEX i2 ; CREATE INDEX i2 ON t1(x, y DESC) }
+  count   { SELECT max(y) FROM t1 WHERE x = '2'; }
+} {V 1}
+do_test minmax3-1.1.5 {
+  count   { SELECT max(y) FROM t1 WHERE x = '2' AND y != 'V'; }
+} {IV 2}
+do_test minmax3-1.1.6 {
+  count   { SELECT max(y) FROM t1 WHERE x = '2' AND y < 'V'; }
+} {IV 1}
+do_test minmax3-1.1.6 {
+  count   { SELECT max(y) FROM t1 WHERE x = '2' AND z != 'five'; }
+} {IV 4}
+
+do_test minmax3-1.2.1 {
+  # Linear scan of t1.
+  execsql { DROP INDEX i1 ; DROP INDEX i2 }
+  count { SELECT min(y) FROM t1 WHERE x = '2'; }
+} {II 5}
+do_test minmax3-1.2.2 {
+  # Index i1 optimizes the WHERE x='2' constraint.
+  execsql { CREATE INDEX i1 ON t1(x) }
+  count   { SELECT min(y) FROM t1 WHERE x = '2'; }
+} {II 9}
+do_test minmax3-1.2.3 {
+  # Index i2 optimizes the WHERE x='2' constraint and the min(y).
+  execsql { CREATE INDEX i2 ON t1(x,y) }
+  count   { SELECT min(y) FROM t1 WHERE x = '2'; }
+} {II 1}
+do_test minmax3-1.2.4 {
+  # Index optimizes the WHERE x='2' constraint and the MAX(y).
+  execsql { DROP INDEX i2 ; CREATE INDEX i2 ON t1(x, y DESC) }
+  count   { SELECT min(y) FROM t1 WHERE x = '2'; }
+} {II 1}
+
+do_test minmax3-1.3.1 {
+  # Linear scan
+  execsql { DROP INDEX i1 ; DROP INDEX i2 }
+  count   { SELECT min(y) FROM t1; }
+} {I 5}
+do_test minmax3-1.3.2 {
+  # Index i1 optimizes the min(y)
+  execsql { CREATE INDEX i1 ON t1(y) }
+  count   { SELECT min(y) FROM t1; }
+} {I 1}
+do_test minmax3-1.3.3 {
+  # Index i1 optimizes the min(y)
+  execsql { DROP INDEX i1 ; CREATE INDEX i1 ON t1(y DESC) }
+  count   { SELECT min(y) FROM t1; }
+} {I 1}
+
+do_test minmax3-1.4.1 {
+  # Linear scan
+  execsql { DROP INDEX i1 }
+  count   { SELECT max(y) FROM t1; }
+} {VI 5}
+do_test minmax3-1.4.2 {
+  # Index i1 optimizes the max(y)
+  execsql { CREATE INDEX i1 ON t1(y) }
+  count   { SELECT max(y) FROM t1; }
+} {VI 0}
+do_test minmax3-1.4.3 {
+  # Index i1 optimizes the max(y)
+  execsql { DROP INDEX i1 ; CREATE INDEX i1 ON t1(y DESC) }
+  execsql   { SELECT y from t1}
+  count   { SELECT max(y) FROM t1; }
+} {VI 0}
+do_test minmax3-1.4.4 {
+  execsql { DROP INDEX i1 }
+} {}
+
+do_test minmax3-2.1 {
+  execsql {
+    CREATE TABLE t2(a, b);
+    CREATE INDEX i3 ON t2(a, b);
+    INSERT INTO t2 VALUES(1, NULL);
+    INSERT INTO t2 VALUES(1, 1);
+    INSERT INTO t2 VALUES(1, 2);
+    INSERT INTO t2 VALUES(1, 3);
+    INSERT INTO t2 VALUES(2, NULL);
+    INSERT INTO t2 VALUES(2, 1);
+    INSERT INTO t2 VALUES(2, 2);
+    INSERT INTO t2 VALUES(2, 3);
+    INSERT INTO t2 VALUES(3, 1);
+    INSERT INTO t2 VALUES(3, 2);
+    INSERT INTO t2 VALUES(3, 3);
+  }
+} {}
+do_test minmax3-2.2 {
+  execsql { SELECT min(b) FROM t2 WHERE a = 1; }
+} {1}
+do_test minmax3-2.3 {
+  execsql { SELECT min(b) FROM t2 WHERE a = 1 AND b>1; }
+} {2}
+do_test minmax3-2.4 {
+  execsql { SELECT min(b) FROM t2 WHERE a = 1 AND b>-1; }
+} {1}
+do_test minmax3-2.5 {
+  execsql { SELECT min(b) FROM t2 WHERE a = 1; }
+} {1}
+do_test minmax3-2.6 {
+  execsql { SELECT min(b) FROM t2 WHERE a = 1 AND b<2; }
+} {1}
+do_test minmax3-2.7 {
+  execsql { SELECT min(b) FROM t2 WHERE a = 1 AND b<1; }
+} {{}}
+do_test minmax3-2.8 {
+  execsql { SELECT min(b) FROM t2 WHERE a = 3 AND b<1; }
+} {{}}
+
+do_test minmax3-3.1 {
+  execsql {
+    DROP TABLE t2;
+    CREATE TABLE t2(a, b);
+    CREATE INDEX i3 ON t2(a, b DESC);
+    INSERT INTO t2 VALUES(1, NULL);
+    INSERT INTO t2 VALUES(1, 1);
+    INSERT INTO t2 VALUES(1, 2);
+    INSERT INTO t2 VALUES(1, 3);
+    INSERT INTO t2 VALUES(2, NULL);
+    INSERT INTO t2 VALUES(2, 1);
+    INSERT INTO t2 VALUES(2, 2);
+    INSERT INTO t2 VALUES(2, 3);
+    INSERT INTO t2 VALUES(3, 1);
+    INSERT INTO t2 VALUES(3, 2);
+    INSERT INTO t2 VALUES(3, 3);
+  }
+} {}
+do_test minmax3-3.2 {
+  execsql { SELECT min(b) FROM t2 WHERE a = 1; }
+} {1}
+do_test minmax3-3.3 {
+  execsql { SELECT min(b) FROM t2 WHERE a = 1 AND b>1; }
+} {2}
+do_test minmax3-3.4 {
+  execsql { SELECT min(b) FROM t2 WHERE a = 1 AND b>-1; }
+} {1}
+do_test minmax3-3.5 {
+  execsql { SELECT min(b) FROM t2 WHERE a = 1; }
+} {1}
+do_test minmax3-3.6 {
+  execsql { SELECT min(b) FROM t2 WHERE a = 1 AND b<2; }
+} {1}
+do_test minmax3-3.7 {
+  execsql { SELECT min(b) FROM t2 WHERE a = 1 AND b<1; }
+} {{}}
+do_test minmax3-3.8 {
+  execsql { SELECT min(b) FROM t2 WHERE a = 3 AND b<1; }
+} {{}}
+
+do_test minmax3-4.1 {
+  execsql {
+    CREATE TABLE t4(x);
+    INSERT INTO t4 VALUES('abc');
+    INSERT INTO t4 VALUES('BCD');
+    SELECT max(x) FROM t4;
+  }
+} {abc}
+do_test minmax3-4.2 {
+  execsql {
+    SELECT max(x COLLATE nocase) FROM t4;
+  }
+} {BCD}
+do_test minmax3-4.3 {
+  execsql {
+    SELECT max(x), max(x COLLATE nocase) FROM t4;
+  }
+} {abc BCD}
+do_test minmax3-4.4 {
+  execsql {
+    SELECT max(x COLLATE binary), max(x COLLATE nocase) FROM t4;
+  }
+} {abc BCD}
+do_test minmax3-4.5 {
+  execsql {
+    SELECT max(x COLLATE nocase), max(x COLLATE rtrim) FROM t4;
+  }
+} {BCD abc}
+do_test minmax3-4.6 {
+  execsql {
+    SELECT max(x COLLATE nocase), max(x) FROM t4;
+  }
+} {BCD abc}
+do_test minmax3-4.10 {
+  execsql {
+    SELECT min(x) FROM t4;
+  }
+} {BCD}
+do_test minmax3-4.11 {
+  execsql {
+    SELECT min(x COLLATE nocase) FROM t4;
+  }
+} {abc}
+do_test minmax3-4.12 {
+  execsql {
+    SELECT min(x), min(x COLLATE nocase) FROM t4;
+  }
+} {BCD abc}
+do_test minmax3-4.13 {
+  execsql {
+    SELECT min(x COLLATE binary), min(x COLLATE nocase) FROM t4;
+  }
+} {BCD abc}
+do_test minmax3-4.14 {
+  execsql {
+    SELECT min(x COLLATE nocase), min(x COLLATE rtrim) FROM t4;
+  }
+} {abc BCD}
+do_test minmax3-4.15 {
+  execsql {
+    SELECT min(x COLLATE nocase), min(x) FROM t4;
+  }
+} {abc BCD}
+
+
+finish_test
diff --git a/test/minmax4.test b/test/minmax4.test
new file mode 100644
index 0000000000000000000000000000000000000000..775fee86bec1b1b1b39fc993fbf75cdc81bffea0
--- /dev/null
+++ b/test/minmax4.test
@@ -0,0 +1,236 @@
+# 2012 February 02
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test for queries of the form:  
+#
+#    SELECT p, max(q) FROM t1;
+#
+# Demonstration that the value returned for p is on the same row as 
+# the maximum q.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix minmax4
+
+ifcapable !compound {
+  finish_test
+  return
+}
+
+do_test minmax4-1.1 {
+  db eval {
+    CREATE TABLE t1(p,q);
+    SELECT p, max(q) FROM t1;
+  }
+} {{} {}}
+do_test minmax4-1.2 {
+  db eval {
+    SELECT p, min(q) FROM t1;
+  }
+} {{} {}}
+do_test minmax4-1.3 {
+  db eval {
+    INSERT INTO t1 VALUES(1,2);
+    SELECT p, max(q) FROM t1;
+  }
+} {1 2}
+do_test minmax4-1.4 {
+  db eval {
+    SELECT p, min(q) FROM t1;
+  }
+} {1 2}
+do_test minmax4-1.5 {
+  db eval {
+    INSERT INTO t1 VALUES(3,4);
+    SELECT p, max(q) FROM t1;
+  }
+} {3 4}
+do_test minmax4-1.6 {
+  db eval {
+    SELECT p, min(q) FROM t1;
+    SELECT p FROM (SELECT p, min(q) FROM t1);
+  }
+} {1 2 1}
+do_test minmax4-1.7 {
+  db eval {
+    INSERT INTO t1 VALUES(5,0);
+    SELECT p, max(q) FROM t1;
+    SELECT p FROM (SELECT max(q), p FROM t1);
+  }
+} {3 4 3}
+do_test minmax4-1.8 {
+  db eval {
+    SELECT p, min(q) FROM t1;
+  }
+} {5 0}
+do_test minmax4-1.9 {
+  db eval {
+    INSERT INTO t1 VALUES(6,1);
+    SELECT p, max(q) FROM t1;
+    SELECT p FROM (SELECT max(q), p FROM t1);
+  }
+} {3 4 3}
+do_test minmax4-1.10 {
+  db eval {
+    SELECT p, min(q) FROM t1;
+  }
+} {5 0}
+do_test minmax4-1.11 {
+  db eval {
+    INSERT INTO t1 VALUES(7,NULL);
+    SELECT p, max(q) FROM t1;
+  }
+} {3 4}
+do_test minmax4-1.12 {
+  db eval {
+    SELECT p, min(q) FROM t1;
+  }
+} {5 0}
+do_test minmax4-1.13 {
+  db eval {
+    DELETE FROM t1 WHERE q IS NOT NULL;
+    SELECT p, max(q) FROM t1;
+  }
+} {7 {}}
+do_test minmax4-1.14 {
+  db eval {
+    SELECT p, min(q) FROM t1;
+  }
+} {7 {}}
+
+do_test minmax4-2.1 {
+  db eval {
+    CREATE TABLE t2(a,b,c);
+    INSERT INTO t2 VALUES
+         (1,null,2),
+         (1,2,3),
+         (1,1,4),
+         (2,3,5);
+    SELECT a, max(b), c FROM t2 GROUP BY a ORDER BY a;
+  }
+} {1 2 3 2 3 5}
+do_test minmax4-2.2 {
+  db eval {
+    SELECT a, min(b), c FROM t2 GROUP BY a ORDER BY a;
+  }
+} {1 1 4 2 3 5}
+do_test minmax4-2.3 {
+  db eval {
+    SELECT a, min(b), avg(b), count(b), c FROM t2 GROUP BY a ORDER BY a DESC;
+  }
+} {2 3 3.0 1 5 1 1 1.5 2 4}
+do_test minmax4-2.4 {
+  db eval {
+    SELECT a, min(b), max(b), c FROM t2 GROUP BY a ORDER BY a;
+  }
+} {1 1 2 3 2 3 3 5}
+do_test minmax4-2.5 {
+  db eval {
+    SELECT a, max(b), min(b), c FROM t2 GROUP BY a ORDER BY a;
+  }
+} {1 2 1 4 2 3 3 5}
+do_test minmax4-2.6 {
+  db eval {
+    SELECT a, max(b), b, max(c), c FROM t2 GROUP BY a ORDER BY a;
+  }
+} {1 2 1 4 4 2 3 3 5 5}
+do_test minmax4-2.7 {
+  db eval {
+    SELECT a, min(b), b, min(c), c FROM t2 GROUP BY a ORDER BY a;
+  }
+} {1 1 {} 2 2 2 3 3 5 5}
+
+#-------------------------------------------------------------------------
+foreach {tn sql} {
+  1 { CREATE INDEX i1 ON t1(a) }
+  2 { CREATE INDEX i1 ON t1(a DESC) }
+  3 { }
+} {
+  reset_db
+  do_execsql_test 3.$tn.0 {
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(NULL, 1);
+  }
+  execsql $sql
+  do_execsql_test 3.$tn.1 {
+    SELECT min(a), b FROM t1;
+  } {{} 1}
+  do_execsql_test 3.$tn.2 {
+    SELECT min(a), b FROM t1 WHERE a<50;
+  } {{} {}}
+  do_execsql_test 3.$tn.3 {
+    INSERT INTO t1 VALUES(2, 2);
+  }
+  do_execsql_test 3.$tn.4 {
+    SELECT min(a), b FROM t1;
+  } {2 2}
+  do_execsql_test 3.$tn.5 {
+    SELECT min(a), b FROM t1 WHERE a<50;
+  } {2 2}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 4.0 {
+  CREATE TABLE t0 (c0, c1);
+  CREATE INDEX i0 ON t0(c1, c1 + 1 DESC);
+  INSERT INTO t0(c0) VALUES (1);
+}
+do_execsql_test 4.1 {
+  SELECT MIN(t0.c1), t0.c0 FROM t0 WHERE t0.c1 ISNULL; 
+} {{} 1}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 5.0 {
+  CREATE TABLE t1 (a, b);
+  INSERT INTO t1 VALUES(123, NULL);
+  CREATE INDEX i1 ON t1(a, b DESC);
+}
+do_execsql_test 5.1 {
+  SELECT MIN(a) FROM t1 WHERE a=123;
+} {123}
+
+#-------------------------------------------------------------------------
+# Tests for ticket f8a7060ece.
+#
+reset_db
+do_execsql_test 6.1.0 {
+  CREATE TABLE t1(a, b, c);
+  INSERT INTO t1 VALUES(NULL, 1, 'x');
+  CREATE INDEX i1 ON t1(a);
+}
+do_execsql_test 6.1.1 {
+  SELECT min(a), b, c FROM t1 WHERE c='x';
+} {{} 1 x}
+do_execsql_test 6.1.2 {
+  INSERT INTO t1 VALUES(1,    2, 'y');
+} {}
+do_execsql_test 6.1.3 {
+  SELECT min(a), b, c FROM t1 WHERE c='x';
+} {{} 1 x}
+
+do_execsql_test 6.2.0 {
+  CREATE TABLE t0(c0 UNIQUE, c1);
+  INSERT INTO t0(c1) VALUES (0);
+  INSERT INTO t0(c0) VALUES (0);
+  CREATE VIEW v0(c0, c1) AS 
+      SELECT t0.c1, t0.c0 FROM t0 WHERE CAST(t0.rowid AS INT) = 1;
+}
+do_execsql_test 6.2.1 {
+  SELECT c0, c1 FROM v0;
+} {0 {}}
+do_execsql_test 6.2.2 {
+  SELECT v0.c0, MIN(v0.c1) FROM v0;
+} {0 {}}
+
+finish_test
diff --git a/test/misc1.test b/test/misc1.test
new file mode 100644
index 0000000000000000000000000000000000000000..8110d38678de1d789d76652becc67344c308c033
--- /dev/null
+++ b/test/misc1.test
@@ -0,0 +1,775 @@
+# 2001 September 15.
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests for miscellanous features that were
+# left out of other test files.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Mimic the SQLite 2 collation type NUMERIC.
+db collate numeric numeric_collate
+proc numeric_collate {lhs rhs} {
+  if {$lhs == $rhs} {return 0} 
+  return [expr ($lhs>$rhs)?1:-1]
+}
+
+# Mimic the SQLite 2 collation type TEXT.
+db collate text text_collate
+proc numeric_collate {lhs rhs} {
+  return [string compare $lhs $rhs]
+}
+
+# Test the creation and use of tables that have a large number
+# of columns.
+#
+do_test misc1-1.1 {
+  set cmd "CREATE TABLE manycol(x0 text"
+  for {set i 1} {$i<=99} {incr i} {
+    append cmd ",x$i text"
+  }
+  append cmd ")";
+  execsql $cmd
+  set cmd "INSERT INTO manycol VALUES(0"
+  for {set i 1} {$i<=99} {incr i} {
+    append cmd ",$i"
+  }
+  append cmd ")";
+  execsql $cmd
+  execsql "SELECT x99 FROM manycol"
+} 99
+do_test misc1-1.2 {
+  execsql {SELECT x0, x10, x25, x50, x75 FROM manycol}
+} {0 10 25 50 75}
+do_test misc1-1.3.1 {
+  for {set j 100} {$j<=1000} {incr j 100} {
+    set cmd "INSERT INTO manycol VALUES($j"
+    for {set i 1} {$i<=99} {incr i} {
+      append cmd ",[expr {$i+$j}]"
+    }
+    append cmd ")"
+    execsql $cmd
+  }
+  execsql {SELECT x50 FROM manycol ORDER BY x80+0}
+} {50 150 250 350 450 550 650 750 850 950 1050}
+do_test misc1-1.3.2 {
+  execsql {SELECT x50 FROM manycol ORDER BY x80}
+} {1050 150 250 350 450 550 650 750 50 850 950}
+do_test misc1-1.4 {
+  execsql {SELECT x75 FROM manycol WHERE x50=350}
+} 375
+do_test misc1-1.5 {
+  execsql {SELECT x50 FROM manycol WHERE x99=599}
+} 550
+do_test misc1-1.6 {
+  execsql {CREATE INDEX manycol_idx1 ON manycol(x99)}
+  execsql {SELECT x50 FROM manycol WHERE x99=899}
+} 850
+do_test misc1-1.7 {
+  execsql {SELECT count(*) FROM manycol}
+} 11
+do_test misc1-1.8 {
+  execsql {DELETE FROM manycol WHERE x98=1234}
+  execsql {SELECT count(*) FROM manycol}
+} 11
+do_test misc1-1.9 {
+  execsql {DELETE FROM manycol WHERE x98=998}
+  execsql {SELECT count(*) FROM manycol}
+} 10
+do_test misc1-1.10 {
+  execsql {DELETE FROM manycol WHERE x99=500}
+  execsql {SELECT count(*) FROM manycol}
+} 10
+do_test misc1-1.11 {
+  execsql {DELETE FROM manycol WHERE x99=599}
+  execsql {SELECT count(*) FROM manycol}
+} 9
+
+# Check GROUP BY expressions that name two or more columns.
+#
+do_test misc1-2.1 {
+  execsql {
+    BEGIN TRANSACTION;
+    CREATE TABLE agger(one text, two text, three text, four text);
+    INSERT INTO agger VALUES(1, 'one', 'hello', 'yes');
+    INSERT INTO agger VALUES(2, 'two', 'howdy', 'no');
+    INSERT INTO agger VALUES(3, 'thr', 'howareya', 'yes');
+    INSERT INTO agger VALUES(4, 'two', 'lothere', 'yes');
+    INSERT INTO agger VALUES(5, 'one', 'atcha', 'yes');
+    INSERT INTO agger VALUES(6, 'two', 'hello', 'no');
+    COMMIT
+  }
+  execsql {SELECT count(*) FROM agger}
+} 6
+do_test misc1-2.2 {
+  execsql {SELECT sum(one), two, four FROM agger
+           GROUP BY two, four ORDER BY sum(one) desc}
+} {8 two no 6 one yes 4 two yes 3 thr yes}
+do_test misc1-2.3 {
+  execsql {SELECT sum((one)), (two), (four) FROM agger
+           GROUP BY (two), (four) ORDER BY sum(one) desc}
+} {8 two no 6 one yes 4 two yes 3 thr yes}
+
+# Here's a test for a bug found by Joel Lucsy.  The code below
+# was causing an assertion failure.
+#
+do_test misc1-3.1 {
+  set r [execsql {
+    CREATE TABLE t1(a);
+    INSERT INTO t1 VALUES('hi');
+    PRAGMA full_column_names=on;
+    SELECT rowid, * FROM t1;
+  }]
+  lindex $r 1
+} {hi}
+
+# Here's a test for yet another bug found by Joel Lucsy.  The code
+# below was causing an assertion failure.
+#
+do_test misc1-4.1 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t2(a);
+    INSERT INTO t2 VALUES('This is a long string to use up a lot of disk -');
+    UPDATE t2 SET a=a||a||a||a;
+    INSERT INTO t2 SELECT '1 - ' || a FROM t2;
+    INSERT INTO t2 SELECT '2 - ' || a FROM t2;
+    INSERT INTO t2 SELECT '3 - ' || a FROM t2;
+    INSERT INTO t2 SELECT '4 - ' || a FROM t2;
+    INSERT INTO t2 SELECT '5 - ' || a FROM t2;
+    INSERT INTO t2 SELECT '6 - ' || a FROM t2;
+    COMMIT;
+    SELECT count(*) FROM t2;
+  }
+} {64}
+
+# Make sure we actually see a semicolon or end-of-file in the SQL input
+# before executing a command.  Thus if "WHERE" is misspelled on an UPDATE,
+# the user won't accidently update every record.
+#
+do_test misc1-5.1 {
+  catchsql {
+    CREATE TABLE t3(a,b);
+    INSERT INTO t3 VALUES(1,2);
+    INSERT INTO t3 VALUES(3,4);
+    UPDATE t3 SET a=0 WHEREwww b=2;
+  }
+} {1 {near "WHEREwww": syntax error}}
+do_test misc1-5.2 {
+  execsql {
+    SELECT * FROM t3 ORDER BY a;
+  }
+} {1 2 3 4}
+
+# Certain keywords (especially non-standard keywords like "REPLACE") can
+# also be used as identifiers.  The way this works in the parser is that
+# the parser first detects a syntax error, the error handling routine
+# sees that the special keyword caused the error, then replaces the keyword
+# with "ID" and tries again.
+#
+# Check the operation of this logic.
+#
+do_test misc1-6.1 {
+  catchsql {
+    CREATE TABLE t4(
+      abort, asc, begin, cluster, conflict, copy, delimiters, desc, end,
+      explain, fail, ignore, key, offset, pragma, replace, temp,
+      vacuum, view
+    );
+  }
+} {0 {}}
+do_test misc1-6.2 {
+  catchsql {
+    INSERT INTO t4
+       VALUES(1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19);
+  }
+} {0 {}}
+do_test misc1-6.3 {
+  execsql {
+    SELECT * FROM t4
+  }
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19}
+do_test misc1-6.4 {
+  execsql {
+    SELECT abort+asc,max(key,pragma,temp) FROM t4
+  }
+} {3 17}
+
+# Test for multi-column primary keys, and for multiple primary keys.
+#
+do_test misc1-7.1 {
+  catchsql {
+    CREATE TABLE error1(
+      a TYPE PRIMARY KEY,
+      b TYPE PRIMARY KEY
+    );
+  }
+} {1 {table "error1" has more than one primary key}}
+do_test misc1-7.2 {
+  catchsql {
+    CREATE TABLE error1(
+      a INTEGER PRIMARY KEY,
+      b TYPE PRIMARY KEY
+    );
+  }
+} {1 {table "error1" has more than one primary key}}
+do_test misc1-7.3 {
+  execsql {
+    CREATE TABLE t5(a,b,c,PRIMARY KEY(a,b));
+    INSERT INTO t5 VALUES(1,2,3);
+    SELECT * FROM t5 ORDER BY a;
+  }
+} {1 2 3}
+do_test misc1-7.4 {
+  catchsql {
+    INSERT INTO t5 VALUES(1,2,4);
+  }
+} {1 {UNIQUE constraint failed: t5.a, t5.b}}
+do_test misc1-7.5 {
+  catchsql {
+    INSERT INTO t5 VALUES(0,2,4);
+  }
+} {0 {}}
+do_test misc1-7.6 {
+  execsql {
+    SELECT * FROM t5 ORDER BY a;
+  }
+} {0 2 4 1 2 3}
+
+do_test misc1-8.1 {
+  catchsql {
+    SELECT *;
+  }
+} {1 {no tables specified}}
+do_test misc1-8.2 {
+  catchsql {
+    SELECT t1.*;
+  }
+} {1 {no such table: t1}}
+
+execsql {
+  DROP TABLE t1;
+  DROP TABLE t2;
+  DROP TABLE t3;
+  DROP TABLE t4;
+}
+
+# 64-bit integers are represented exactly.
+#
+do_test misc1-9.1 {
+  catchsql {
+    CREATE TABLE t1(a unique not null, b unique not null);
+    INSERT INTO t1 VALUES('a',1234567890123456789);
+    INSERT INTO t1 VALUES('b',1234567891123456789);
+    INSERT INTO t1 VALUES('c',1234567892123456789);
+    SELECT * FROM t1;
+  }
+} {0 {a 1234567890123456789 b 1234567891123456789 c 1234567892123456789}}
+
+# A WHERE clause is not allowed to contain more than 99 terms.  Check to
+# make sure this limit is enforced.
+#
+# 2005-07-16: There is no longer a limit on the number of terms in a
+# WHERE clause.  But keep these tests just so that we have some tests
+# that use a large number of terms in the WHERE clause.
+#
+do_test misc1-10.0 {
+  execsql {SELECT count(*) FROM manycol}
+} {9}
+do_test misc1-10.1 {
+  set ::where {WHERE x0>=0}
+  for {set i 1} {$i<=99} {incr i} {
+    append ::where " AND x$i<>0"
+  }
+  catchsql "SELECT count(*) FROM manycol $::where"
+} {0 9}
+do_test misc1-10.2 {
+  catchsql "SELECT count(*) FROM manycol $::where AND rowid>0"
+} {0 9}
+do_test misc1-10.3 {
+  regsub "x0>=0" $::where "x0=0" ::where
+  catchsql "DELETE FROM manycol $::where"
+} {0 {}}
+do_test misc1-10.4 {
+  execsql {SELECT count(*) FROM manycol}
+} {8}
+do_test misc1-10.5 {
+  catchsql "DELETE FROM manycol $::where AND rowid>0"
+} {0 {}}
+do_test misc1-10.6 {
+  execsql {SELECT x1 FROM manycol WHERE x0=100}
+} {101}
+do_test misc1-10.7 {
+  regsub "x0=0" $::where "x0=100" ::where
+  catchsql "UPDATE manycol SET x1=x1+1 $::where"
+} {0 {}}
+do_test misc1-10.8 {
+  execsql {SELECT x1 FROM manycol WHERE x0=100}
+} {102}
+do_test misc1-10.9 {
+  catchsql "UPDATE manycol SET x1=x1+1 $::where AND rowid>0"
+} {0 {}}
+do_test misc1-10.10 {
+  execsql {SELECT x1 FROM manycol WHERE x0=100}
+} {103}
+
+# Make sure the initialization works even if a database is opened while
+# another process has the database locked.
+#
+# Update for v3: The BEGIN doesn't lock the database so the schema is read
+# and the SELECT returns successfully.
+do_test misc1-11.1 {
+  execsql {BEGIN}
+  execsql {UPDATE t1 SET a=0 WHERE 0}
+  sqlite3 db2 test.db
+  set rc [catch {db2 eval {SELECT count(*) FROM t1}} msg]
+  lappend rc $msg
+# v2 result: {1 {database is locked}}
+} {0 3}
+do_test misc1-11.2 {
+  execsql {COMMIT}
+  set rc [catch {db2 eval {SELECT count(*) FROM t1}} msg]
+  db2 close
+  lappend rc $msg
+} {0 3}
+
+# Make sure string comparisons really do compare strings in format4+.
+# Similar tests in the format3.test file show that for format3 and earlier
+# all comparisions where numeric if either operand looked like a number.
+#
+do_test misc1-12.1 {
+  execsql {SELECT '0'=='0.0'}
+} {0}
+do_test misc1-12.2 {
+  execsql {SELECT '0'==0.0}
+} {0}
+do_test misc1-12.3 {
+  execsql {SELECT '12345678901234567890'=='12345678901234567891'}
+} {0}
+do_test misc1-12.4 {
+  execsql {
+    CREATE TABLE t6(a INT UNIQUE, b TEXT UNIQUE);
+    INSERT INTO t6 VALUES('0','0.0');
+    SELECT * FROM t6;
+  }
+} {0 0.0}
+ifcapable conflict {
+  do_test misc1-12.5 {
+    execsql {
+      INSERT OR IGNORE INTO t6 VALUES(0.0,'x');
+      SELECT * FROM t6;
+    }
+  } {0 0.0}
+  do_test misc1-12.6 {
+    execsql {
+      INSERT OR IGNORE INTO t6 VALUES('y',0);
+      SELECT * FROM t6;
+    }
+  } {0 0.0 y 0}
+}
+do_test misc1-12.7 {
+  execsql {
+    CREATE TABLE t7(x INTEGER, y TEXT, z);
+    INSERT INTO t7 VALUES(0,0,1);
+    INSERT INTO t7 VALUES(0.0,0,2);
+    INSERT INTO t7 VALUES(0,0.0,3);
+    INSERT INTO t7 VALUES(0.0,0.0,4);
+    SELECT DISTINCT x, y FROM t7 ORDER BY z;
+  }
+} {0 0 0 0.0}
+do_test misc1-12.8 {
+  execsql {
+    SELECT min(z), max(z), count(z) FROM t7 GROUP BY x ORDER BY 1;
+  }
+} {1 4 4}
+do_test misc1-12.9 {
+  execsql {
+    SELECT min(z), max(z), count(z) FROM t7 GROUP BY y ORDER BY 1;
+  }
+} {1 2 2 3 4 2}
+
+# This used to be an error.  But we changed the code so that arbitrary
+# identifiers can be used as a collating sequence.  Collation is by text
+# if the identifier contains "text", "blob", or "clob" and is numeric
+# otherwise.
+#
+# Update: In v3, it is an error again.
+#
+#do_test misc1-12.10 {
+#  catchsql {
+#    SELECT * FROM t6 ORDER BY a COLLATE unknown;
+#  }
+#} {0 {0 0 y 0}}
+do_test misc1-12.11 {
+  execsql {
+    CREATE TABLE t8(x TEXT COLLATE numeric, y INTEGER COLLATE text, z);
+    INSERT INTO t8 VALUES(0,0,1);
+    INSERT INTO t8 VALUES(0.0,0,2);
+    INSERT INTO t8 VALUES(0,0.0,3);
+    INSERT INTO t8 VALUES(0.0,0.0,4);
+    SELECT DISTINCT x, y FROM t8 ORDER BY z;
+  }
+} {0 0 0.0 0}
+do_test misc1-12.12 {
+  execsql {
+    SELECT min(z), max(z), count(z) FROM t8 GROUP BY x ORDER BY 1;
+  }
+} {1 3 2 2 4 2}
+do_test misc1-12.13 {
+  execsql {
+    SELECT min(z), max(z), count(z) FROM t8 GROUP BY y ORDER BY 1;
+  }
+} {1 4 4}
+
+# There was a problem with realloc() in the OP_MemStore operation of
+# the VDBE.  A buffer was being reallocated but some pointers into 
+# the old copy of the buffer were not being moved over to the new copy.
+# The following code tests for the problem.
+#
+ifcapable subquery {
+  do_test misc1-13.1 {
+     execsql {
+       CREATE TABLE t9(x,y);
+       INSERT INTO t9 VALUES('one',1);
+       INSERT INTO t9 VALUES('two',2);
+       INSERT INTO t9 VALUES('three',3);
+       INSERT INTO t9 VALUES('four',4);
+       INSERT INTO t9 VALUES('five',5);
+       INSERT INTO t9 VALUES('six',6);
+       INSERT INTO t9 VALUES('seven',7);
+       INSERT INTO t9 VALUES('eight',8);
+       INSERT INTO t9 VALUES('nine',9);
+       INSERT INTO t9 VALUES('ten',10);
+       INSERT INTO t9 VALUES('eleven',11);
+       SELECT y FROM t9
+       WHERE x=(SELECT x FROM t9 WHERE y=1)
+          OR x=(SELECT x FROM t9 WHERE y=2)
+          OR x=(SELECT x FROM t9 WHERE y=3)
+          OR x=(SELECT x FROM t9 WHERE y=4)
+          OR x=(SELECT x FROM t9 WHERE y=5)
+          OR x=(SELECT x FROM t9 WHERE y=6)
+          OR x=(SELECT x FROM t9 WHERE y=7)
+          OR x=(SELECT x FROM t9 WHERE y=8)
+          OR x=(SELECT x FROM t9 WHERE y=9)
+          OR x=(SELECT x FROM t9 WHERE y=10)
+          OR x=(SELECT x FROM t9 WHERE y=11)
+          OR x=(SELECT x FROM t9 WHERE y=12)
+          OR x=(SELECT x FROM t9 WHERE y=13)
+          OR x=(SELECT x FROM t9 WHERE y=14)
+       ;
+     }
+  } {1 2 3 4 5 6 7 8 9 10 11}
+}
+
+#
+# The following tests can only work if the current SQLite VFS has the concept
+# of a current directory.
+#
+ifcapable curdir {
+# Make sure a database connection still works after changing the
+# working directory.
+#
+if {[atomic_batch_write test.db]==0} {
+  do_test misc1-14.1 {
+    file mkdir tempdir
+    cd tempdir
+    execsql {BEGIN}
+    file exists ./test.db-journal
+  } {0}
+  do_test misc1-14.2a {
+    execsql {UPDATE t1 SET a=a||'x' WHERE 0}
+    file exists ../test.db-journal
+  } {0}
+  do_test misc1-14.2b {
+    execsql {UPDATE t1 SET a=a||'y' WHERE 1}
+    file exists ../test.db-journal
+  } {1}
+  do_test misc1-14.3 {
+    cd ..
+    forcedelete tempdir
+    execsql {COMMIT}
+    file exists ./test.db-journal
+  } {0}
+}
+}
+
+# A failed create table should not leave the table in the internal
+# data structures.  Ticket #238.
+#
+do_test misc1-15.1.1 {
+  catchsql {
+    CREATE TABLE t10 AS SELECT c1;
+  }
+} {1 {no such column: c1}}
+do_test misc1-15.1.2 {
+  catchsql {
+    CREATE TABLE t10 AS SELECT t9.c1;
+  }
+} {1 {no such column: t9.c1}}
+do_test misc1-15.1.3 {
+  catchsql {
+    CREATE TABLE t10 AS SELECT main.t9.c1;
+  }
+} {1 {no such column: main.t9.c1}}
+do_test misc1-15.2 {
+  catchsql {
+    CREATE TABLE t10 AS SELECT 1;
+  }
+  # The bug in ticket #238 causes the statement above to fail with
+  # the error "table t10 alread exists"
+} {0 {}}
+
+# Test for memory leaks when a CREATE TABLE containing a primary key
+# fails.  Ticket #249.
+#
+do_test misc1-16.1 {
+  catchsql {SELECT name FROM sqlite_master LIMIT 1}
+  catchsql {
+    CREATE TABLE test(a integer, primary key(a));
+  }
+} {0 {}}
+do_test misc1-16.2 {
+  catchsql {
+    CREATE TABLE test(a integer, primary key(a));
+  }
+} {1 {table test already exists}}
+do_test misc1-16.3 {
+  catchsql {
+    CREATE TABLE test2(a text primary key, b text, primary key(a,b));
+  }
+} {1 {table "test2" has more than one primary key}}
+do_test misc1-16.4 {
+  execsql {
+    INSERT INTO test VALUES(1);
+    SELECT rowid, a FROM test;
+  }
+} {1 1}
+do_test misc1-16.5 {
+  execsql {
+    INSERT INTO test VALUES(5);
+    SELECT rowid, a FROM test;
+  }
+} {1 1 5 5}
+do_test misc1-16.6 {
+  execsql {
+    INSERT INTO test VALUES(NULL);
+    SELECT rowid, a FROM test;
+  }
+} {1 1 5 5 6 6}
+
+ifcapable trigger&&tempdb {
+# Ticket #333: Temp triggers that modify persistent tables.
+#
+do_test misc1-17.1 {
+  execsql {
+    BEGIN;
+    CREATE TABLE RealTable(TestID INTEGER PRIMARY KEY, TestString TEXT);
+    CREATE TEMP TABLE TempTable(TestID INTEGER PRIMARY KEY, TestString TEXT);
+    CREATE TEMP TRIGGER trigTest_1 AFTER UPDATE ON TempTable BEGIN
+      INSERT INTO RealTable(TestString) 
+         SELECT new.TestString FROM TempTable LIMIT 1;
+    END;
+    INSERT INTO TempTable(TestString) VALUES ('1');
+    INSERT INTO TempTable(TestString) VALUES ('2');
+    UPDATE TempTable SET TestString = TestString + 1 WHERE TestID=1 OR TestId=2;
+    COMMIT;
+    SELECT TestString FROM RealTable ORDER BY 1;
+  }
+} {2 3}
+}
+
+do_test misc1-18.1 {
+  set n [sqlite3_sleep 100]
+  expr {$n>=100}
+} {1}
+do_test misc1-18.2 {
+  sqlite3_sleep -100
+} {0}
+
+# 2014-01-10:  In a CREATE TABLE AS, if one or more of the column names
+# are an empty string, that is still OK.
+#
+do_execsql_test misc1-19.1 {
+  CREATE TABLE t19 AS SELECT 1, 2 AS '', 3;
+  SELECT * FROM t19;
+} {1 2 3}
+do_execsql_test misc1-19.2 {
+  CREATE TABLE t19b AS SELECT 4 AS '', 5 AS '',  6 AS '';
+  SELECT * FROM t19b;
+} {4 5 6}
+
+# 2015-05-20:  CREATE TABLE AS should not store INT value in a TEXT
+# column.
+#
+# 2022-12-14:  Change:  The column is not TEXT if the AS SELECT is
+# a compound with different types on each arm.
+#
+do_execsql_test misc1-19.3 {
+  CREATE TABLE t19c(x TEXT);
+  CREATE TABLE t19d AS SELECT * FROM t19c UNION ALL SELECT 1234;
+  SELECT x, typeof(x) FROM t19d;
+} {1234 integer}
+
+# 2014-05-16:  Tests for the SQLITE_TESTCTRL_FAULT_INSTALL feature.
+#
+unset -nocomplain fault_callbacks
+set fault_callbacks {}
+proc fault_callback {n} {
+  lappend ::fault_callbacks $n
+  return 0
+}
+do_test misc1-19.11 {
+  sqlite3_test_control_fault_install fault_callback
+  set fault_callbacks
+} {0}
+do_test misc1-19.12 {
+  sqlite3_test_control_fault_install
+  set fault_callbacks
+} {0}
+
+# 2015-01-26:  Valgrind-detected over-read.
+# Reported on sqlite-users@sqlite.org by Michal Zalewski.  Found by afl-fuzz
+# presumably.
+#
+do_execsql_test misc1-20.1 {
+  CREATE TABLE t0(x INTEGER DEFAULT(0==0) NOT NULL);
+  REPLACE INTO t0(x) VALUES('');
+  SELECT rowid, quote(x) FROM t0;
+} {1 ''}
+
+# 2015-03-22: NULL pointer dereference after a syntax error
+#
+do_catchsql_test misc1-21.1 {
+  select''like''like''like#0;
+} {1 {near "#0": syntax error}}
+do_catchsql_test misc1-21.2 {
+  VALUES(0,0x0MATCH#0;
+} {1 {unrecognized token: "0x0MATCH"}}
+
+# 2015-04-15
+do_execsql_test misc1-22.1 {
+  SELECT ''+3 FROM (SELECT ''+5);
+} {3}
+
+# 2015-04-19: NULL pointer dereference on a corrupt schema
+#
+db close
+sqlite3 db :memory:
+sqlite3_db_config db DEFENSIVE 0
+do_execsql_test misc1-23.1 {
+  CREATE TABLE t1(x);
+  PRAGMA writable_schema=ON;
+  UPDATE sqlite_master SET sql='CREATE table t(d CHECK(T(#0)';
+  BEGIN;
+  CREATE TABLE t2(y);
+  ROLLBACK;
+  DROP TABLE IF EXISTS t3;
+} {}
+
+# 2015-04-19:  Faulty assert() statement
+#
+db close
+database_may_be_corrupt
+sqlite3 db :memory:
+sqlite3_db_config db DEFENSIVE 0
+do_catchsql_test misc1-23.2 {
+  CREATE TABLE t1(x UNIQUE);
+  PRAGMA writable_schema=ON;
+  UPDATE sqlite_master SET sql='CREATE TABLE IF not EXISTS t(c)';
+  BEGIN;
+  CREATE TABLE t2(x);
+  ROLLBACK;
+  DROP TABLE F;
+} {1 {no such table: F}}
+db close
+sqlite3 db :memory:
+sqlite3_db_config db DEFENSIVE 0
+do_catchsql_test misc1-23.3 {
+  CREATE TABLE t1(x UNIQUE);
+  PRAGMA writable_schema=ON;
+  UPDATE sqlite_master SET sql='CREATE table y(a TEXT, a TEXT)';
+  BEGIN;
+  CREATE TABLE t2(y);
+  ROLLBACK;
+  DROP TABLE IF EXISTS t;
+} {0 {}}
+
+
+# At one point, running this would read one byte passed the end of a 
+# buffer, upsetting valgrind.
+#
+do_test misc1-24.0 {
+  list [catch { sqlite3_prepare_v2 db ! -1 dummy } msg] $msg
+} {1 {(1) unrecognized token: "!"}}
+
+# The following query (provided by Kostya Serebryany) used to take 25
+# minutes to prepare.  This has been speeded up to about 250 milliseconds.
+#
+do_catchsql_test misc1-25.0 {
+SELECT-1 UNION  SELECT 5 UNION SELECT 0 UNION SElECT*from(SELECT-5) UNION SELECT*from(SELECT-0) UNION  SELECT:SELECT-0 UNION SELECT-1 UNION SELECT 1 UNION SELECT 1 ORDER BY S  in(WITH K AS(WITH K AS(select'CREINDERcharREADEVIRTUL5TABLECONFLICT !1 USIN'' MFtOR(b38q,eWITH K AS(selectCREATe TABLE t0(a,b,c,d,e, PRIMARY KEY(a,b,c,d,c,a,b,b,c,d,c,a,b,c,e,c,d,c,a,b,b,c,d,c,a,b,c,e,d,d,c,a,b,b,c,d,c,d,c,a,b,c,e,c,d,c,a,b,b,c,d,c,d,c,a,b,c,e,d,d,c,a,b,b,c,c,a,b,b,c,d,c,d,c,a,b,c,e,d,d,c,a,b,b,c,d,c,d,c,c,d,c,a,b,c,e,d,d,c,a,b,b,c,d,c,d,c,a,b,c,e,c,d,c,a,b,b,c,a,b,b,c,d,c,a,c,d,c,d,c,e,d,d,c,a,b,b,c,c,a,b,b,E,d,c,d,c,b,c,d,c,d,c,c,d,c,a,b,c,e,d,d,c,a,b,b,c,d,c,d,c,a,b,c,e,c,d,c,a,b,b,c,a,b,c,e,d,d,c,a,b,b,c,d,d,c,a,b,c,e,d,c,d,c,a,b,c,e,c,d,c,a,b,b,c,d,c,a,b,c,e,d,d,c,a,b,b,b,c,e,d,d,c,a,b,b,c,c,a,b,b,c,d,c,d,c,a,b,c,e,d,d,c,a,b,b,c,d,c,d,c,c,d,c,a,b,c,e,d,d,c,a,b,b,c,d,c,d,c,a,b,c,e,c,d,c,a,b,b,c,d,c,d,c,e,d,d,c,a,b,b,c,c,a,b,b,E,d,c,d,c,b,c,d,c,d,c,c,d,c,a,b,c,e,d,d,c,a,b,b,c,d,c,d,c,a,b,c,e,c,d'CEIl,k'',ab, g, a,b,o11b, i'nEX/charREDE IVT LR!VABLt5SG',N  ,N in rement,l_vacuum,M&U,'te3(''5l' a,bB,b,l*e)SELECT:SELECT, *,*,*from(( SELECT
+$group,:conc ap0,1)fro,(select"",:PBAG,c,a,b,b,c,a,b,c,e,d,d,c,a,b,b,c,d,d,c,a,b,c,e,d,c,d,c,a,b,c,e,c,d,c,d,c,a,b,b,c,d,c,a,b,c,e,c,d,c,a,b,b,c,d,c,a,b,c,e,d,d,c,a,b,b,c,d,c,d,c,a,b,c,e,c,d,c,a,b,b,c,d,c,d,c,a,b,c,e,d,d,c,a,b,b,c,c,a,b,b,c,d,c,d,c,a,b,c,e,d,d,c,a,b,b,c,d,c,d,c,c,d,c,a,b,c,e,d,d,c,a,b,b,c,d,c,d,c,a,b,c,e,d,c,d,c,a,b,c,e,c,d,c,a,b,b,c,d,c,a,b,c,e,d,d,c,a,b,b,b,c,e,d,d,c,a,b,b,c,c,a,b,b,c,d,c,d,c,a,b,c,e,d,d,c,a,b,b,c,d,c,d,c,c,d,c,a,b,c,e,d,d,c,a,b,b,c,d,c,d,c,a,b,c,e,c,d,c,a,b,b,c,d,c,d,c,e,d,d,c,a,b,b,c,c,a,b,b,E,d,c,d,c,b,c,d,c,d,c,c,d,c,a,b,c,e,d,d,c,a,b,b,c,d,c,d,c,a,b,c,e,c,d,c,a,b,b,c,a,b,c,e,d,d,c,a,b,b,c,d,d,c,a,b,c,e,d,c,d,c,a,b,c,e,c,d,c,d,c,a,b,b,c,d,c,a,b,c,e,c,d,c,a,b,b,c,d,c,a,b,c,e,d,d,c,a,b,b,c,d,c,d,c,a,b,c,e,c,d,c,a,b,b,c,d,c,d,c,a,b,c,e,d,d,c,a,b,b,c,c,a,b,b,c,d,c,d,c,a,b,c,e,d,d,c,a,b,b,c,d,c,d,c,c,d,c,a,b,c,e,d,d,c,a,b,b,c,d,c,d,c,a,b,c,e,c,d,c,a,b,b,c,d,c,d,c,e,d,d,c,a,b,b,c,c,a,b,b,E,d,c,d,c,b,c,d,c,d,c,c,d,c,a,b,c,e,d,d,c,a,b,b,c,d,c,d,c,a,b,c,e,c,d,c,a,b,b,c,a,b,c,e,d,d,c,a,b,b,c,d,d,c,a,b,c,e,d,c,d,c,a,b,c,e,c,d,c,a,b,b,c,c,d,c,c,a,a,b,d,d,c,a,b,b,c,d,c,a,b,e,e,d,b,c,d,c,a,b,b,c,d,c,a,b,c,e,c,d,c,a,b,b,c,d,c,a,b,c,e,d,d,c,a,b,b,c,d,c,d,c,a,b,c,e,c,d,c,a,b,b,c,d,c,d,c,a,b,c,e,d,d,c,a,b,b,c,c,a,b,b,c,d,c,d,c,a,b,c,e,d,d,c,a,b,b,c,d,c,d,c,c,d,c,a,b,c,e,d,d,c,a,b,b,c,d,c,d,c,a,b,c,e,c,d,c,a,b,b,c,d, foreign_keysc,d,c,e,d,d,c,a,b,b,c,c,a,b,b,E,d,c,d,c,b,c,d,c,d,c,c,d,c,a,b,c,e,d,d,c,a,b,b,c,d,c,d,c,a,a,b,d,d,c,a,b,b,c,d,c,a,b,e,e,d,b,c,d,c,a,b,b,c,d,c,a,b,c,e,c,d,c,a,b,b,c,d,c,a,b,c,e,d,d,c,a,b,b,c,d,c,d,c,a,b,c,e,c,d,c,a,b,b,c,d,c,d,c,a,b,c,d,c,a,b,c,e,c,d,c,a,b,b,c,d,c,d,c,e,d,d,c,a,b,b,c,c,a,d,c,a,b,c,e,d,d,c,a,b,b,c,d,c,d,c,a,b,c,e,c,d,c,a,b,b,c,d,c,d,c,a,b,c,d,c,a,b,c,e,c,d,c,a,b,b,c,d,c,d,c,e,d,d,c,a,b,b,c,c,a,b,b,E,d,c,d,c,b,c,d,c,d,c,c,d,c,a,b,c,e,d,d,c,a,b,b,c,d,c,d,c,a,b,c,e,c,d,c,a,b,b,c,a,b,c,e,d,d,c,a,b,b,c,d,d,c,a,b,c,e,d,c,d,c,a,b,c,e,c,d,c,a,b,b,c,c,d,c,a,b,d,d,c,a,a,b,d,d,c,a,b,b,c,d,c,a,b,e,e,d,b,c,d,c,a,b,b,c,d,c,a,b,c,e,c,d,c,a,b,b,c,d,c,a,b,c,e,d,d,c,a,b,b,c,d,c,d,c,a,b,c,e,c,d,c,a,b,b,c,d,c,d,c,a,b,c,e,d,d,c,a,b,b,c,c,a,b,b,c,d,c,d,c,a,b,c,e,d,d,c,a,b,b,c,d,c,d,c,c,d,c,a,b,c,e,d,d,c,a,b,b,c,d,c,d,c,a,b,c,e,c,d,c,a,b,b,c,d,c,d,c,e,d,d,c,a,b,b,c,c,a,b,b,E,d,c,d,c,b,c,d,c,d,c,c,d,c,a,b,c,e,d,d,c,a,b,b,c,d,c,d,c,a,a,b,d,d,c,a,b,b,c,d,c,a,b,e,e,d,b,c,d,c,a,b,b,c,d,c,a,b,c,e,c,d,c,a,b,b,c,d,c,a,b,c,e,d,d,c,a,b,b,c,d,c,d,c,a,b,c,e,c,d,c,a,b,b,c,d,c,d,c,a,b,c,e,d,d,c,a,b,b,c,c,a,b,b,c,d,c,d,c,a,b,c,e,d,d,c,a,b,b,c,d,c,d,c,c,d,c,a,b,c,e,d,d,c,a,b,b,c,d,c,d,c,a,b,c,e,c,d,c,a,b,b,c,d,c,d,c,e,d,d,c,a,b,b,c,c,a,b,b,E,d,c,d,c,b,c,d,c,d,c,c,d,c,a,b,c,e,d,d,c,a,b,b,c,d,c,d,c,a,b,c,e,c,d,c,a,b,b,c,a,bb,b,E,d,c,d,c,b,c,d,c,d,c,c,d,c,a,b,c,e,d,d,c,a,b,b,c,d,c,d,c,a,b,c,e,c,d,c,a,b,b,c,a,b,c,e,d,d,c,a,b,b,c,d,d,c,a,b,c,e,d,c,d,c,a,b,c,e,c,d,c,a,b,b,c,c,d,c,a,b,d,d,c,a,a,b,d,d,c,a,b,b,c,d,c,a,b,e,e,d,b,c,d,c,a,b,b,c,d,c,a,b,c,e,c,d,c,a,b,b,c,d,c,a,b,c,e,d,d,c,a,b,b,c,d,c,d,c,a,b,c,e,c,d,c,a,b,b,c,d,MAato_aecSELEC,+?b," "O,"i","a",""b  ,5 ))KEY)SELECT*FROM((k()reaC,k,K) eA,k '' )t ,K  M);
+} {1 {'k' is not a function}}
+
+# 2017-09-17
+#
+# Sometimes sqlite3ExprListAppend() can be invoked on an ExprList that
+# was obtained from sqlite3ExprListDup().
+#
+do_execsql_test misc1-26.0 {
+  DROP TABLE IF EXISTS abc;
+  CREATE TABLE abc(a, b, c);
+  SELECT randomblob(min(max(coalesce(EXISTS (SELECT 1 FROM ( SELECT (SELECT 2147483647) NOT IN (SELECT 2147483649 UNION ALL SELECT DISTINCT -1) IN (SELECT 2147483649), 'fault', (SELECT ALL -1 INTERSECT SELECT 'experiments') IN (SELECT ALL 56.1 ORDER BY 'experiments' DESC) FROM (SELECT DISTINCT 2147483648, 'hardware' UNION ALL SELECT -2147483648, 'experiments' ORDER BY 2147483648 LIMIT 1 OFFSET 123456789.1234567899) GROUP BY (SELECT ALL 0 INTERSECT SELECT 'in') IN (SELECT DISTINCT 'experiments' ORDER BY zeroblob(1000) LIMIT 56.1 OFFSET -456) HAVING EXISTS (SELECT 'fault' EXCEPT    SELECT DISTINCT 56.1) UNION SELECT 'The', 'The', 2147483649 UNION ALL SELECT DISTINCT 'hardware', 'first', 'experiments' ORDER BY 'hardware' LIMIT 123456789.1234567899 OFFSET -2147483647)) NOT IN (SELECT (SELECT DISTINCT (SELECT 'The') FROM abc ORDER BY EXISTS (SELECT -1 INTERSECT SELECT ALL NULL) ASC) IN (SELECT DISTINCT EXISTS (SELECT ALL 123456789.1234567899 ORDER BY 1 ASC, NULL DESC) FROM sqlite_master INTERSECT SELECT 456)), (SELECT ALL 'injection' UNION ALL SELECT ALL (SELECT DISTINCT 'first' UNION     SELECT DISTINCT 'The') FROM (SELECT 456, 'in', 2147483649))),1), 500)), 'first', EXISTS (SELECT DISTINCT 456 FROM abc ORDER BY 'experiments' DESC) FROM abc;
+} {}
+
+# 2017-12-29
+#
+# The following behaviors (duplicate column names on an INSERT or UPDATE)
+# are undocumented.  <<---  Not so.  There is a long-standing requirement
+# in lang_update.in to say that when the columns to be updated appear more
+# than once in an UPDATE statement that only the rightmost expression is used.
+# See e_update-1.6.* for the tests.  This is unfortunate, since omitting
+# that requirement would greatly simplify the fix to the problem identified
+# by forum post https://sqlite.org/forum/info/16ca0e9f32c38567
+#
+# These tests are added to ensure that historical behavior
+# does not change accidentally.
+#
+# For duplication columns on an INSERT, the first value is used.
+# For duplication columns on an UPDATE, the last value is used.
+#
+do_execsql_test misc1-27.0 {
+  CREATE TABLE dup1(a,b,c);
+  INSERT INTO dup1(a,b,c,a,b,c) VALUES(1,2,3,4,5,6);
+  SELECT a,b,c FROM dup1;
+} {1 2 3}
+do_execsql_test misc1-27.1 {
+  UPDATE dup1 SET a=7, b=8, c=9, a=10, b=11, c=12;
+  SELECT a,b,c FROM dup1;
+} {10 11 12}
+
+# 2018-12-20
+#
+# The Cursor.seekOp debugging value set incorrectly
+# in OP_NotExists.
+#
+sqlite3 db :memory:
+do_execsql_test misc1-28.0 {
+  CREATE TABLE t1(x);
+  CREATE UNIQUE INDEX t1x ON t1(x) WHERE x=1;
+  INSERT OR ABORT INTO t1 DEFAULT VALUES;
+  UPDATE OR REPLACE t1 SET x = 1;
+  PRAGMA integrity_check;
+  SELECT * FROM t1;
+} {ok 1}
+
+finish_test
diff --git a/test/misc2.test b/test/misc2.test
new file mode 100644
index 0000000000000000000000000000000000000000..607799ea2176c995a2f1490d4e01d18bf1622c6f
--- /dev/null
+++ b/test/misc2.test
@@ -0,0 +1,459 @@
+# 2003 June 21
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests for miscellanous features that were
+# left out of other test files.
+#
+# $Id: misc2.test,v 1.28 2007/09/12 17:01:45 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# The tests in this file were written before SQLite supported recursive
+# trigger invocation, and some tests depend on that to pass. So disable
+# recursive triggers for this file.
+catchsql { pragma recursive_triggers = off } 
+
+ifcapable {trigger} {
+# Test for ticket #360
+#
+do_test misc2-1.1 {
+  catchsql {
+    CREATE TABLE FOO(bar integer);
+    CREATE TRIGGER foo_insert BEFORE INSERT ON foo BEGIN
+      SELECT CASE WHEN (NOT new.bar BETWEEN 0 AND 20)
+             THEN raise(rollback, 'aiieee') END;
+    END;
+    INSERT INTO foo(bar) VALUES (1);
+  }
+} {0 {}}
+do_test misc2-1.2 {
+  catchsql {
+    INSERT INTO foo(bar) VALUES (111);
+  }
+} {1 aiieee}
+} ;# endif trigger
+
+# Make sure ROWID works on a view and a subquery.  Ticket #364
+#
+do_test misc2-2.1 {
+  execsql {
+    CREATE TABLE t1(a,b,c);
+    INSERT INTO t1 VALUES(1,2,3);
+    CREATE TABLE t2(a,b,c);
+    INSERT INTO t2 VALUES(7,8,9);
+  }
+} {}
+ifcapable subquery {
+  ifcapable allow_rowid_in_view {
+    do_catchsql_test misc2-2.2 {
+      SELECT rowid, * FROM (SELECT * FROM t1, t2);
+    } {0 {{} 1 2 3 7 8 9}}
+  } else {
+    do_catchsql_test misc2-2.2 {
+      SELECT rowid, * FROM (SELECT * FROM t1, t2);
+    } {1 {no such column: rowid}}
+  }
+  do_catchsql_test misc2-2.2b {
+    SELECT 'rowid', * FROM (SELECT * FROM t1, t2);
+  } {0 {rowid 1 2 3 7 8 9}}
+}
+
+ifcapable view {
+  ifcapable allow_rowid_in_view {
+    do_catchsql_test misc2-2.3 {
+      CREATE VIEW v1 AS SELECT * FROM t1, t2;
+      SELECT rowid, * FROM v1;
+    } {0 {{} 1 2 3 7 8 9}}
+  } else {
+    do_catchsql_test misc2-2.3 {
+      CREATE VIEW v1 AS SELECT * FROM t1, t2;
+      SELECT rowid, * FROM v1;
+    } {1 {no such column: rowid}}
+  }
+
+
+  do_catchsql_test misc2-2.3b {
+    SELECT 'rowid', * FROM v1;
+  } {0 {rowid 1 2 3 7 8 9}}
+} ;# ifcapable view
+
+# Ticket #2002 and #1952.
+ifcapable subquery {
+  do_test misc2-2.4 {
+    execsql2 {
+      SELECT * FROM (SELECT a, b AS 'a', c AS 'a', 4 AS 'a' FROM t1)
+    }
+  } {a 1 a:1 2 a:2 3 a:3 4}
+}
+
+# Check name binding precedence.  Ticket #387
+#
+do_test misc2-3.1 {
+  catchsql {
+    SELECT t1.b+t2.b AS a, t1.a, t2.a FROM t1, t2 WHERE a==10
+  }
+} {1 {ambiguous column name: a}}
+
+# Make sure 32-bit integer overflow is handled properly in queries.
+# ticket #408
+#
+do_test misc2-4.1 {
+  execsql {
+    INSERT INTO t1 VALUES(4000000000,'a','b');
+    SELECT a FROM t1 WHERE a>1;
+  }
+} {4000000000}
+do_test misc2-4.2 {
+  execsql {
+    INSERT INTO t1 VALUES(2147483648,'b2','c2');
+    INSERT INTO t1 VALUES(2147483647,'b3','c3');
+    SELECT a FROM t1 WHERE a>2147483647;
+  }
+} {4000000000 2147483648}
+do_test misc2-4.3 {
+  execsql {
+    SELECT a FROM t1 WHERE a<2147483648;
+  }
+} {1 2147483647}
+do_test misc2-4.4 {
+  execsql {
+    SELECT a FROM t1 WHERE a<=2147483648;
+  }
+} {1 2147483648 2147483647}
+do_test misc2-4.5 {
+  execsql {
+    SELECT a FROM t1 WHERE a<10000000000;
+  }
+} {1 4000000000 2147483648 2147483647}
+do_test misc2-4.6 {
+  execsql {
+    SELECT a FROM t1 WHERE a<1000000000000 ORDER BY 1;
+  }
+} {1 2147483647 2147483648 4000000000}
+
+# There were some issues with expanding a SrcList object using a call
+# to sqliteSrcListAppend() if the SrcList had previously been duplicated
+# using a call to sqliteSrcListDup().  Ticket #416.  The following test
+# makes sure the problem has been fixed.
+#
+ifcapable view {
+do_test misc2-5.1 {
+  execsql {
+    CREATE TABLE x(a,b);
+    CREATE VIEW y AS 
+      SELECT x1.b AS p, x2.b AS q FROM x AS x1, x AS x2 WHERE x1.a=x2.a;
+    CREATE VIEW z AS
+      SELECT y1.p, y2.p FROM y AS y1, y AS y2 WHERE y1.q=y2.q;
+    SELECT * from z;
+  }
+} {}
+}
+
+# Make sure we can open a database with an empty filename.  What this
+# does is store the database in a temporary file that is deleted when
+# the database is closed.  Ticket #432.
+#
+do_test misc2-6.1 {
+  db close
+  sqlite3 db {}
+  execsql {
+    CREATE TABLE t1(a,b);
+    INSERT INTO t1 VALUES(1,2);
+    SELECT * FROM t1;
+  }
+} {1 2}
+
+# Make sure we get an error message (not a segfault) on an attempt to
+# update a table from within the callback of a select on that same
+# table.
+#
+# 2006-08-16:  This has changed.  It is now permitted to update
+# the table being SELECTed from within the callback of the query.
+#
+ifcapable tclvar {
+  do_test misc2-7.1 {
+    db close
+    forcedelete test.db
+    sqlite3 db test.db
+    execsql {
+      CREATE TABLE t1(x);
+      INSERT INTO t1 VALUES(1);
+      INSERT INTO t1 VALUES(2);
+      INSERT INTO t1 VALUES(3);
+      SELECT * FROM t1;
+    }
+  } {1 2 3}
+  do_test misc2-7.2 {
+    set rc [catch {
+      db eval {SELECT rowid FROM t1} {} {
+        db eval "DELETE FROM t1 WHERE rowid=$rowid"
+      }
+    } msg]
+    lappend rc $msg
+  } {0 {}}
+  do_test misc2-7.3 {
+    execsql {SELECT * FROM t1}
+  } {}
+  do_test misc2-7.4 {
+    execsql {
+      DELETE FROM t1;
+      INSERT INTO t1 VALUES(1);
+      INSERT INTO t1 VALUES(2);
+      INSERT INTO t1 VALUES(3);
+      INSERT INTO t1 VALUES(4);
+    }
+    db eval {SELECT rowid, x FROM t1} {
+      if {$x & 1} {
+        db eval {DELETE FROM t1 WHERE rowid=$rowid}
+      }
+    }
+    execsql {SELECT * FROM t1}
+  } {2 4}
+  do_test misc2-7.5 {
+    execsql {
+      DELETE FROM t1;
+      INSERT INTO t1 VALUES(1);
+      INSERT INTO t1 VALUES(2);
+      INSERT INTO t1 VALUES(3);
+      INSERT INTO t1 VALUES(4);
+    }
+    db eval {SELECT rowid, x FROM t1} {
+      if {$x & 1} {
+        db eval {DELETE FROM t1 WHERE rowid=$rowid+1}
+      }
+    }
+    execsql {SELECT * FROM t1}
+  } {1 3}
+  do_test misc2-7.6 {
+    execsql {
+      DELETE FROM t1;
+      INSERT INTO t1 VALUES(1);
+      INSERT INTO t1 VALUES(2);
+      INSERT INTO t1 VALUES(3);
+      INSERT INTO t1 VALUES(4);
+    }
+    db eval {SELECT rowid, x FROM t1} {
+      if {$x & 1} {
+        db eval {DELETE FROM t1}
+      }
+    }
+    execsql {SELECT * FROM t1}
+  } {}
+  do_test misc2-7.7 {
+    execsql {
+      DELETE FROM t1;
+      INSERT INTO t1 VALUES(1);
+      INSERT INTO t1 VALUES(2);
+      INSERT INTO t1 VALUES(3);
+      INSERT INTO t1 VALUES(4);
+    }
+    db eval {SELECT rowid, x FROM t1} {
+      if {$x & 1} {
+        db eval {UPDATE t1 SET x=x+100 WHERE rowid=$rowid}
+      }
+    }
+    execsql {SELECT * FROM t1}
+  } {101 2 103 4}
+  do_test misc2-7.8 {
+    execsql {
+      DELETE FROM t1;
+      INSERT INTO t1 VALUES(1);
+    }
+    db eval {SELECT rowid, x FROM t1} {
+      if {$x<10} {
+        db eval {INSERT INTO t1 VALUES($x+1)}
+      }
+    }
+    execsql {SELECT * FROM t1}
+  } {1 2 3 4 5 6 7 8 9 10}
+  
+  # Repeat the tests 7.1 through 7.8 about but this time do the SELECTs
+  # in reverse order so that we exercise the sqlite3BtreePrev() routine
+  # instead of sqlite3BtreeNext()
+  #
+  do_test misc2-7.11 {
+    db close
+    forcedelete test.db
+    sqlite3 db test.db
+    execsql {
+      CREATE TABLE t1(x);
+      INSERT INTO t1 VALUES(1);
+      INSERT INTO t1 VALUES(2);
+      INSERT INTO t1 VALUES(3);
+      SELECT * FROM t1;
+    }
+  } {1 2 3}
+  do_test misc2-7.12 {
+    set rc [catch {
+      db eval {SELECT rowid FROM t1 ORDER BY rowid DESC} {} {
+        db eval "DELETE FROM t1 WHERE rowid=$rowid"
+      }
+    } msg]
+    lappend rc $msg
+  } {0 {}}
+  do_test misc2-7.13 {
+    execsql {SELECT * FROM t1}
+  } {}
+  do_test misc2-7.14 {
+    execsql {
+      DELETE FROM t1;
+      INSERT INTO t1 VALUES(1);
+      INSERT INTO t1 VALUES(2);
+      INSERT INTO t1 VALUES(3);
+      INSERT INTO t1 VALUES(4);
+    }
+    db eval {SELECT rowid, x FROM t1 ORDER BY rowid DESC} {
+      if {$x & 1} {
+        db eval {DELETE FROM t1 WHERE rowid=$rowid}
+      }
+    }
+    execsql {SELECT * FROM t1}
+  } {2 4}
+  do_test misc2-7.15 {
+    execsql {
+      DELETE FROM t1;
+      INSERT INTO t1 VALUES(1);
+      INSERT INTO t1 VALUES(2);
+      INSERT INTO t1 VALUES(3);
+      INSERT INTO t1 VALUES(4);
+    }
+    db eval {SELECT rowid, x FROM t1} {
+      if {$x & 1} {
+        db eval {DELETE FROM t1 WHERE rowid=$rowid+1}
+      }
+    }
+    execsql {SELECT * FROM t1}
+  } {1 3}
+  do_test misc2-7.16 {
+    execsql {
+      DELETE FROM t1;
+      INSERT INTO t1 VALUES(1);
+      INSERT INTO t1 VALUES(2);
+      INSERT INTO t1 VALUES(3);
+      INSERT INTO t1 VALUES(4);
+    }
+    db eval {SELECT rowid, x FROM t1 ORDER BY rowid DESC} {
+      if {$x & 1} {
+        db eval {DELETE FROM t1}
+      }
+    }
+    execsql {SELECT * FROM t1}
+  } {}
+  do_test misc2-7.17 {
+    execsql {
+      DELETE FROM t1;
+      INSERT INTO t1 VALUES(1);
+      INSERT INTO t1 VALUES(2);
+      INSERT INTO t1 VALUES(3);
+      INSERT INTO t1 VALUES(4);
+    }
+    db eval {SELECT rowid, x FROM t1 ORDER BY rowid DESC} {
+      if {$x & 1} {
+        db eval {UPDATE t1 SET x=x+100 WHERE rowid=$rowid}
+      }
+    }
+    execsql {SELECT * FROM t1}
+  } {101 2 103 4}
+  do_test misc2-7.18 {
+    execsql {
+      DELETE FROM t1;
+      INSERT INTO t1(rowid,x) VALUES(10,10);
+    }
+    db eval {SELECT rowid, x FROM t1 ORDER BY rowid DESC} {
+      if {$x>1} {
+        db eval {INSERT INTO t1(rowid,x) VALUES($x-1,$x-1)}
+      }
+    }
+    execsql {SELECT * FROM t1}
+  } {1 2 3 4 5 6 7 8 9 10}
+}
+
+db close
+forcedelete test.db
+sqlite3 db test.db
+catchsql { pragma recursive_triggers = off } 
+
+# Ticket #453.  If the SQL ended with "-", the tokenizer was calling that
+# an incomplete token, which caused problem.  The solution was to just call
+# it a minus sign.
+#
+do_test misc2-8.1 {
+  catchsql {-}
+} {1 {near "-": syntax error}}
+
+# Ticket #513.  Make sure the VDBE stack does not grow on a 3-way join.
+#
+ifcapable tempdb {
+  do_test misc2-9.1 {
+    execsql {
+      BEGIN;
+      CREATE TABLE counts(n INTEGER PRIMARY KEY);
+      INSERT INTO counts VALUES(0);
+      INSERT INTO counts VALUES(1);
+      INSERT INTO counts SELECT n+2 FROM counts;
+      INSERT INTO counts SELECT n+4 FROM counts;
+      INSERT INTO counts SELECT n+8 FROM counts;
+      COMMIT;
+  
+      CREATE TEMP TABLE x AS
+      SELECT dim1.n, dim2.n, dim3.n
+      FROM counts AS dim1, counts AS dim2, counts AS dim3
+      WHERE dim1.n<10 AND dim2.n<10 AND dim3.n<10;
+  
+      SELECT count(*) FROM x;
+    }
+  } {1000}
+  do_test misc2-9.2 {
+    execsql {
+      DROP TABLE x;
+      CREATE TEMP TABLE x AS
+      SELECT dim1.n, dim2.n, dim3.n
+      FROM counts AS dim1, counts AS dim2, counts AS dim3
+      WHERE dim1.n>=6 AND dim2.n>=6 AND dim3.n>=6;
+  
+      SELECT count(*) FROM x;
+    }
+  } {1000}
+  do_test misc2-9.3 {
+    execsql {
+      DROP TABLE x;
+      CREATE TEMP TABLE x AS
+      SELECT dim1.n, dim2.n, dim3.n, dim4.n
+      FROM counts AS dim1, counts AS dim2, counts AS dim3, counts AS dim4
+      WHERE dim1.n<5 AND dim2.n<5 AND dim3.n<5 AND dim4.n<5;
+  
+      SELECT count(*) FROM x;
+    }
+  } [expr 5*5*5*5]
+}
+
+# Ticket #1229.  Sometimes when a "NEW.X" appears in a SELECT without
+# a FROM clause deep within a trigger, the code generator is unable to
+# trace the NEW.X back to an original table and thus figure out its
+# declared datatype.
+#
+# The SQL code below was causing a segfault.
+#
+ifcapable subquery&&trigger {
+  do_test misc2-10.1 {
+    execsql {
+      CREATE TABLE t1229(x);
+      CREATE TRIGGER r1229 BEFORE INSERT ON t1229 BEGIN
+        INSERT INTO t1229 SELECT y FROM (SELECT new.x y);
+      END;
+      INSERT INTO t1229 VALUES(1);
+    }
+  } {}
+}
+
+finish_test
diff --git a/test/misc3.test b/test/misc3.test
new file mode 100644
index 0000000000000000000000000000000000000000..f64b0fe1dd58ae3136ff904b852ca61d38d13201
--- /dev/null
+++ b/test/misc3.test
@@ -0,0 +1,355 @@
+# 2003 December 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests for miscellanous features that were
+# left out of other test files.
+#
+# $Id: misc3.test,v 1.20 2009/05/06 00:49:01 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable {integrityck} {
+  # Ticket #529.  Make sure an ABORT does not damage the in-memory cache
+  # that will be used by subsequent statements in the same transaction.
+  #
+  do_test misc3-1.1 {
+    execsql {
+      CREATE TABLE t1(a UNIQUE,b);
+      INSERT INTO t1
+        VALUES(1,'a23456789_b23456789_c23456789_d23456789_e23456789_');
+      UPDATE t1 SET b=b||b;
+      UPDATE t1 SET b=b||b;
+      UPDATE t1 SET b=b||b;
+      UPDATE t1 SET b=b||b;
+      UPDATE t1 SET b=b||b;
+      INSERT INTO t1 VALUES(2,'x');
+      UPDATE t1 SET b=substr(b,1,500);
+      BEGIN;
+    }
+    catchsql {UPDATE t1 SET a=CASE a WHEN 2 THEN 1 ELSE a END, b='y';}
+    execsql {
+      CREATE TABLE t2(x,y);
+      COMMIT;
+      PRAGMA integrity_check;
+    }
+  } ok
+}
+ifcapable {integrityck} {
+  do_test misc3-1.2 {
+    execsql {
+      DROP TABLE t1;
+      DROP TABLE t2;
+    }
+    ifcapable {vacuum} {execsql VACUUM}
+    execsql {
+      CREATE TABLE t1(a UNIQUE,b);
+      INSERT INTO t1
+      VALUES(1,'a23456789_b23456789_c23456789_d23456789_e23456789_');
+      INSERT INTO t1 SELECT a+1, b||b FROM t1;
+      INSERT INTO t1 SELECT a+2, b||b FROM t1;
+      INSERT INTO t1 SELECT a+4, b FROM t1;
+      INSERT INTO t1 SELECT a+8, b FROM t1;
+      INSERT INTO t1 SELECT a+16, b FROM t1;
+      INSERT INTO t1 SELECT a+32, b FROM t1;
+      INSERT INTO t1 SELECT a+64, b FROM t1;
+      BEGIN;
+    }
+    catchsql {UPDATE t1 SET a=CASE a WHEN 128 THEN 127 ELSE a END, b='';}
+    execsql {
+      INSERT INTO t1 VALUES(200,'hello out there');
+      COMMIT;
+      PRAGMA integrity_check;
+    }
+  } ok
+}
+
+# Tests of the sqliteAtoF() function in util.c
+#
+do_test misc3-2.1 {
+  execsql {SELECT 2e-25*0.5e25}
+} 1.0
+do_test misc3-2.2 {
+  execsql {SELECT 2.0e-25*000000.500000000000000000000000000000e+00025}
+} 1.0
+do_test misc3-2.3 {
+  execsql {SELECT 000000000002e-0000000025*0.5e25}
+} 1.0
+do_test misc3-2.4 {
+  execsql {SELECT 2e-25*0.5e250}
+} 1e+225
+do_test misc3-2.5 {
+  execsql {SELECT format('%.15e',2.0e-250*0.5e25)}
+} {1.0000000000000e-225}
+do_test misc3-2.6 {
+  execsql {SELECT '-2.0e-127' * '-0.5e27'}
+} 1e-100
+do_test misc3-2.7 {
+  execsql {SELECT '+2.0e-127' * '-0.5e27'}
+} -1e-100
+do_test misc3-2.8 {
+  execsql {SELECT 2.0e-27 * '+0.5e+127'}
+} 1e+100
+do_test misc3-2.9 {
+  execsql {SELECT 2.0e-27 * '+0.000005e+132'}
+} 1e+100
+
+# Ticket #522.  Make sure integer overflow is handled properly in
+# indices.
+#
+integrity_check misc3-3.1
+do_test misc3-3.2 {
+  execsql {
+    CREATE TABLE t2(a INT UNIQUE);
+  }
+} {}
+integrity_check misc3-3.2.1
+do_test misc3-3.3 {
+  execsql {
+    INSERT INTO t2 VALUES(2147483648);
+  }
+} {}
+integrity_check misc3-3.3.1
+do_test misc3-3.4 {
+  execsql {
+    INSERT INTO t2 VALUES(-2147483649);
+  }
+} {}
+integrity_check misc3-3.4.1
+do_test misc3-3.5 {
+  execsql {
+    INSERT INTO t2 VALUES(+2147483649);
+  }
+} {}
+integrity_check misc3-3.5.1
+do_test misc3-3.6 {
+  execsql {
+    INSERT INTO t2 VALUES(+2147483647);
+    INSERT INTO t2 VALUES(-2147483648);
+    INSERT INTO t2 VALUES(-2147483647);
+    INSERT INTO t2 VALUES(2147483646);
+    SELECT * FROM t2 ORDER BY a;
+  }
+} {-2147483649 -2147483648 -2147483647 2147483646 2147483647 2147483648 2147483649}
+do_test misc3-3.7 {
+  execsql {
+    SELECT * FROM t2 WHERE a>=-2147483648 ORDER BY a;
+  }
+} {-2147483648 -2147483647 2147483646 2147483647 2147483648 2147483649}
+do_test misc3-3.8 {
+  execsql {
+    SELECT * FROM t2 WHERE a>-2147483648 ORDER BY a;
+  }
+} {-2147483647 2147483646 2147483647 2147483648 2147483649}
+do_test misc3-3.9 {
+  execsql {
+    SELECT * FROM t2 WHERE a>-2147483649 ORDER BY a;
+  }
+} {-2147483648 -2147483647 2147483646 2147483647 2147483648 2147483649}
+do_test misc3-3.10 {
+  execsql {
+    SELECT * FROM t2 WHERE a>=0 AND a<2147483649 ORDER BY a DESC;
+  }
+} {2147483648 2147483647 2147483646}
+do_test misc3-3.11 {
+  execsql {
+    SELECT * FROM t2 WHERE a>=0 AND a<=2147483648 ORDER BY a DESC;
+  }
+} {2147483648 2147483647 2147483646}
+do_test misc3-3.12 {
+  execsql {
+    SELECT * FROM t2 WHERE a>=0 AND a<2147483648 ORDER BY a DESC;
+  }
+} {2147483647 2147483646}
+do_test misc3-3.13 {
+  execsql {
+    SELECT * FROM t2 WHERE a>=0 AND a<=2147483647 ORDER BY a DESC;
+  }
+} {2147483647 2147483646}
+do_test misc3-3.14 {
+  execsql {
+    SELECT * FROM t2 WHERE a>=0 AND a<2147483647 ORDER BY a DESC;
+  }
+} {2147483646}
+
+# Ticket #565.  A stack overflow is occurring when the subquery to the
+# right of an IN operator contains many NULLs
+#
+do_test misc3-4.1 {
+  execsql {
+    CREATE TABLE t3(a INTEGER PRIMARY KEY, b);
+    INSERT INTO t3(b) VALUES('abc');
+    INSERT INTO t3(b) VALUES('xyz');
+    INSERT INTO t3(b) VALUES(NULL);
+    INSERT INTO t3(b) VALUES(NULL);
+    INSERT INTO t3(b) SELECT b||'d' FROM t3;
+    INSERT INTO t3(b) SELECT b||'e' FROM t3;
+    INSERT INTO t3(b) SELECT b||'f' FROM t3;
+    INSERT INTO t3(b) SELECT b||'g' FROM t3;
+    INSERT INTO t3(b) SELECT b||'h' FROM t3;
+    SELECT count(a), count(b) FROM t3;
+  }
+} {128 64}
+ifcapable subquery {
+do_test misc3-4.2 {
+    execsql {
+      SELECT count(a) FROM t3 WHERE b IN (SELECT b FROM t3);
+    }
+  } {64}
+  do_test misc3-4.3 {
+    execsql {
+      SELECT count(a) FROM t3 WHERE b IN (SELECT b FROM t3 ORDER BY a+1);
+    }
+  } {64}
+}
+
+# Ticket #601:  Putting a left join inside "SELECT * FROM (<join-here>)"
+# gives different results that if the outer "SELECT * FROM ..." is omitted.
+#
+ifcapable subquery {
+  do_test misc3-5.1 {
+    execsql {
+      CREATE TABLE x1 (b, c);
+      INSERT INTO x1 VALUES('dog',3);
+      INSERT INTO x1 VALUES('cat',1);
+      INSERT INTO x1 VALUES('dog',4);
+      CREATE TABLE x2 (c, e);
+      INSERT INTO x2 VALUES(1,'one');
+      INSERT INTO x2 VALUES(2,'two');
+      INSERT INTO x2 VALUES(3,'three');
+      INSERT INTO x2 VALUES(4,'four');
+      SELECT x2.c AS c, e, b FROM x2 LEFT JOIN
+         (SELECT b, max(c)+0 AS c FROM x1 GROUP BY b)
+         USING(c);
+    }
+  } {1 one cat 2 two {} 3 three {} 4 four dog}
+  do_test misc3-5.2 {
+    execsql {
+      SELECT * FROM (
+        SELECT x2.c AS c, e, b FROM x2 LEFT JOIN
+           (SELECT b, max(c)+0 AS c FROM x1 GROUP BY b)
+           USING(c)
+      );
+    }
+  } {1 one cat 2 two {} 3 three {} 4 four dog}
+}
+
+ifcapable {explain} {
+  # Ticket #626:  make sure EXPLAIN prevents BEGIN and COMMIT from working.
+  #
+  do_test misc3-6.1 {
+    execsql {EXPLAIN BEGIN}
+    catchsql {BEGIN}
+  } {0 {}}
+  do_test misc3-6.2 {
+    execsql {EXPLAIN COMMIT}
+    catchsql {COMMIT}
+  } {0 {}}
+  do_test misc3-6.3 {
+    execsql {BEGIN; EXPLAIN ROLLBACK}
+    catchsql {ROLLBACK}
+  } {0 {}}
+
+  # Do some additional EXPLAIN operations to exercise the displayP4 logic.
+  do_test misc3-6.10 {
+    set x [execsql {
+      CREATE TABLE ex1(
+        a INTEGER DEFAULT 54321,
+        b TEXT DEFAULT "hello",
+        c REAL DEFAULT 3.1415926
+      );
+      CREATE UNIQUE INDEX ex1i1 ON ex1(a);
+      EXPLAIN REINDEX;
+    }]
+    ifcapable mergesort {
+      regexp { SorterCompare \d+ \d+ \d+ } $x
+    } else {
+      regexp { IsUnique \d+ \d+ \d+ \d+ } $x
+    }
+  } {1}
+  if {[regexp {16} [db one {PRAGMA encoding}]]} {
+    do_test misc3-6.11-utf16 {
+      set x [execsql {
+        EXPLAIN SELECT a+123456789012, b*4.5678, c FROM ex1 ORDER BY +a, b DESC
+      }]
+      set y [regexp { 123456789012 } $x]
+      lappend y [regexp { 4.5678 } $x]
+      lappend y [regexp {,-B} $x]
+    } {1 1 1}
+  } else {
+    do_test misc3-6.11-utf8 {
+      set x [execsql {
+        EXPLAIN SELECT a+123456789012, b*4.5678, c FROM ex1 ORDER BY +a, b DESC
+      }]
+      set y [regexp { 123456789012 } $x]
+      lappend y [regexp { 4.5678 } $x]
+      lappend y [regexp { hello } $x]
+      lappend y [regexp {,-B} $x]
+    } {1 1 1 1}
+  }
+}
+
+ifcapable {trigger} {
+# Ticket #640:  vdbe stack overflow with a LIMIT clause on a SELECT inside
+# of a trigger.
+#
+do_test misc3-7.1 {
+  execsql {
+    BEGIN;
+    CREATE TABLE y1(a);
+    CREATE TABLE y2(b);
+    CREATE TABLE y3(c);
+    CREATE TRIGGER r1 AFTER DELETE ON y1 FOR EACH ROW BEGIN
+      INSERT INTO y3(c) SELECT b FROM y2 ORDER BY b LIMIT 1;
+    END;
+    INSERT INTO y1 VALUES(1);
+    INSERT INTO y1 VALUES(2);
+    INSERT INTO y1 SELECT a+2 FROM y1;
+    INSERT INTO y1 SELECT a+4 FROM y1;
+    INSERT INTO y1 SELECT a+8 FROM y1;
+    INSERT INTO y1 SELECT a+16 FROM y1;
+    INSERT INTO y2 SELECT a FROM y1;
+    COMMIT;
+    SELECT count(*) FROM y1;
+  }
+} 32
+do_test misc3-7.2 {
+  execsql {
+    DELETE FROM y1;
+    SELECT count(*) FROM y1;
+  }
+} 0
+do_test misc3-7.3 {
+  execsql {
+    SELECT count(*) FROM y3;
+  }
+} 32
+} ;# endif trigger
+
+# Ticket #668:  VDBE stack overflow occurs when the left-hand side
+# of an IN expression is NULL and the result is used as an integer, not
+# as a jump.
+#
+ifcapable subquery {
+  do_test misc-8.1 {
+    execsql {
+      SELECT count(CASE WHEN b IN ('abc','xyz') THEN 'x' END) FROM t3
+    }
+  } {2}
+  do_test misc-8.2 {
+    execsql {
+      SELECT count(*) FROM t3 WHERE 1+(b IN ('abc','xyz'))==2
+    }
+  } {2}
+}
+
+finish_test
diff --git a/test/misc4.test b/test/misc4.test
new file mode 100644
index 0000000000000000000000000000000000000000..3d391882c3d8535eb7485feddf1c2c207b728cf7
--- /dev/null
+++ b/test/misc4.test
@@ -0,0 +1,233 @@
+# 2004 Jun 27
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests for miscellanous features that were
+# left out of other test files.
+#
+# $Id: misc4.test,v 1.23 2007/12/08 18:01:31 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Prepare a statement that will create a temporary table.  Then do
+# a rollback.  Then try to execute the prepared statement.
+#
+do_test misc4-1.1 {
+  set DB [sqlite3_connection_pointer db]
+  execsql {
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(1);
+  }
+} {}
+
+ifcapable tempdb {
+  do_test misc4-1.2 {
+    set sql {CREATE TEMP TABLE t2 AS SELECT * FROM t1}
+    set stmt [sqlite3_prepare $DB $sql -1 TAIL]
+    execsql {
+      BEGIN;
+      CREATE TABLE t3(a,b,c);
+      INSERT INTO t1 SELECT * FROM t1;
+      ROLLBACK;
+    }
+  } {}
+
+  # Because the previous transaction included a DDL statement and
+  # was rolled back, statement $stmt was marked as expired. Executing it
+  # now returns SQLITE_SCHEMA.
+  do_test misc4-1.2.1 {
+    list [sqlite3_step $stmt] [sqlite3_finalize $stmt]
+  } {SQLITE_ERROR SQLITE_SCHEMA}
+  do_test misc4-1.2.2 {
+    set stmt [sqlite3_prepare $DB $sql -1 TAIL]
+    set TAIL
+  } {}
+
+  do_test misc4-1.3 {
+    sqlite3_step $stmt
+  } SQLITE_DONE
+  do_test misc4-1.4 {
+    execsql {
+      SELECT * FROM temp.t2;
+    }
+  } {1}
+  
+  # Drop the temporary table, then rerun the prepared  statement to
+  # recreate it again.  This recreates ticket #807.
+  #
+  do_test misc4-1.5 {
+    execsql {DROP TABLE t2}
+    sqlite3_reset $stmt
+    sqlite3_step $stmt
+  } {SQLITE_ERROR}
+  do_test misc4-1.6 {
+    sqlite3_finalize $stmt
+  } {SQLITE_SCHEMA}
+}
+
+# Prepare but do not execute various CREATE statements.  Then before
+# those statements are executed, try to use the tables, indices, views,
+# are triggers that were created.
+#
+do_test misc4-2.1 {
+  set stmt [sqlite3_prepare $DB {CREATE TABLE t3(x);} -1 TAIL]
+  catchsql {
+    INSERT INTO t3 VALUES(1);
+  }
+} {1 {no such table: t3}}
+do_test misc4-2.2 {
+  sqlite3_step $stmt
+} SQLITE_DONE
+do_test misc4-2.3 {
+  sqlite3_finalize $stmt
+} SQLITE_OK
+do_test misc4-2.4 {
+  catchsql {
+    INSERT INTO t3 VALUES(1);
+  }
+} {0 {}}
+
+# Ticket #966
+#
+do_test misc4-3.1 {
+  execsql { 
+    CREATE TABLE Table1(ID integer primary key, Value TEXT);
+    INSERT INTO Table1 VALUES(1, 'x');
+    CREATE TABLE Table2(ID integer NOT NULL, Value TEXT);
+    INSERT INTO Table2 VALUES(1, 'z');
+    INSERT INTO Table2 VALUES (1, 'a');
+  }
+  catchsql { 
+    SELECT ID, max(Value) FROM Table2 GROUP BY 1, 2 ORDER BY 1, 2;
+  }
+} {1 {aggregate functions are not allowed in the GROUP BY clause}}
+ifcapable compound {
+  do_test misc4-3.2 {
+    execsql {
+      SELECT ID, Value FROM Table1
+         UNION SELECT ID, max(Value) FROM Table2 GROUP BY 1
+      ORDER BY 1, 2;
+    }
+  } {1 x 1 z}
+  do_test misc4-3.3 {
+    catchsql { 
+      SELECT ID, Value FROM Table1
+         UNION SELECT ID, max(Value) FROM Table2 GROUP BY 1, 2
+      ORDER BY 1, 2;
+    }
+  } {1 {aggregate functions are not allowed in the GROUP BY clause}}
+  do_test misc4-3.4 {
+    catchsql { 
+      SELECT ID, max(Value) FROM Table2 GROUP BY 1, 2
+         UNION SELECT ID, Value FROM Table1
+      ORDER BY 1, 2;
+    }
+  } {1 {aggregate functions are not allowed in the GROUP BY clause}}
+} ;# ifcapable compound
+
+# Ticket #1047.  Make sure column types are preserved in subqueries.
+#
+ifcapable subquery {
+  do_test misc4-4.1 {
+    execsql {
+      create table a(key varchar, data varchar);
+      create table b(key varchar, period integer);
+      insert into a values('01','data01');
+      insert into a values('+1','data+1');
+      
+      insert into b values ('01',1);
+      insert into b values ('01',2);
+      insert into b values ('+1',3);
+      insert into b values ('+1',4);
+      
+      select a.*, x.*
+        from a, (select key,sum(period) from b group by key) as x
+        where a.key=x.key order by 1 desc;
+    }
+  } {01 data01 01 3 +1 data+1 +1 7}
+
+  # This test case tests the same property as misc4-4.1, but it is
+  # a bit smaller which makes it easier to work with while debugging.
+  do_test misc4-4.2 {
+    execsql {
+      CREATE TABLE ab(a TEXT, b TEXT);
+      INSERT INTO ab VALUES('01', '1');
+    }
+    execsql {
+      select * from ab, (select b from ab) as x where x.b = ab.a;
+    }
+  } {}
+}
+
+
+# Ticket #1036.  When creating tables from a SELECT on a view, use the
+# short names of columns.
+#
+ifcapable view {
+  do_test misc4-5.1 {
+    execsql {
+      create table t4(a,b);
+      create table t5(a,c);
+      insert into t4 values (1,2);
+      insert into t5 values (1,3);
+      create view myview as select t4.a a from t4 inner join t5 on t4.a=t5.a;
+      create table problem as select * from myview; 
+    }
+    execsql2 {
+      select * FROM problem;
+    }
+  } {a 1}
+  do_test misc4-5.2 {
+    execsql2 {
+      create table t6 as select * from t4, t5;
+      select * from t6;
+    }
+  } {a 1 b 2 a:1 1 c 3}
+}
+
+# Ticket #1086
+do_test misc4-6.1 {
+  execsql {
+    CREATE TABLE abc(a);
+    INSERT INTO abc VALUES(1);
+    CREATE TABLE def(d, e, f, PRIMARY KEY(d, e));
+  }
+} {}
+do_test misc4-6.2 {
+  execsql {
+    SELECT a FROM abc LEFT JOIN def ON (abc.a=def.d);
+  }
+} {1}
+
+# 2015-05-15.  Error message formatting problem.
+#
+db close
+sqlite3 db :memory:
+sqlite3_db_config db DEFENSIVE 0
+do_catchsql_test misc4-7.1 {
+  CREATE TABLE t7(x);
+  PRAGMA writable_schema=ON;
+  UPDATE sqlite_master SET sql='CREATE TABLE [M%s%s%s%s%s%s%s%s%s%s%s%s%s';
+  VACUUM;
+} {1 {unrecognized token: "[M%s%s%s%s%s%s%s%s%s%s%s%s%s"}}
+
+# 2015-05-18.  Use of ephermeral Mem content after the cursor that holds
+# the canonical content has moved on.
+#
+do_execsql_test misc4-7.2 {
+  CREATE TABLE t0(a,b);
+  INSERT INTO t0 VALUES(1,0),(2,0);
+  UPDATE t0 SET b=9 WHERE a AND (SELECT a FROM t0 WHERE a);
+  SELECT * FROM t0 ORDER BY +a;
+} {1 9 2 9}
+
+finish_test
diff --git a/test/misc5.test b/test/misc5.test
new file mode 100644
index 0000000000000000000000000000000000000000..43ee2781a171cec85c163315d6adb2e0f06d32e2
--- /dev/null
+++ b/test/misc5.test
@@ -0,0 +1,1908 @@
+# 2005 Mar 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests for miscellanous features that were
+# left out of other test files.
+#
+# $Id: misc5.test,v 1.22 2008/07/29 10:26:45 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Build records using the MakeRecord opcode such that the size of the 
+# header is at the transition point in the size of a varint.
+#
+# This test causes an assertion failure or a buffer overrun in version
+# 3.1.5 and earlier.
+#
+for {set i 120} {$i<140} {incr i} {
+  do_test misc5-1.$i {
+    catchsql {DROP TABLE t1}
+    set sql1 {CREATE TABLE t1}
+    set sql2 {INSERT INTO t1 VALUES}
+    set sep (
+    for {set j 0} {$j<$i} {incr j} {
+      append sql1 ${sep}a$j
+      append sql2 ${sep}$j
+      set sep ,
+    }
+    append sql1 {);}
+    append sql2 {);}
+    execsql $sql1$sql2
+  } {}
+}
+
+# Make sure large integers are stored correctly.
+#
+ifcapable conflict {
+  do_test misc5-2.1 {
+    execsql {
+      create table t2(x unique);
+      insert into t2 values(1);
+      insert or ignore into t2 select x*2 from t2;
+      insert or ignore into t2 select x*4 from t2;
+      insert or ignore into t2 select x*16 from t2;
+      insert or ignore into t2 select x*256 from t2;
+      insert or ignore into t2 select x*65536 from t2;
+      insert or ignore into t2 select x*2147483648 from t2;
+      insert or ignore into t2 select x-1 from t2;
+      insert or ignore into t2 select x+1 from t2;
+      insert or ignore into t2 select -x from t2;
+      select count(*) from t2;
+    }
+  } 371
+} else {
+  do_test misc5-2.1 {
+    execsql {
+      BEGIN;
+      create table t2(x unique);
+      create table t2_temp(x);
+      insert into t2_temp values(1);
+      insert into t2_temp select x*2 from t2_temp;
+      insert into t2_temp select x*4 from t2_temp;
+      insert into t2_temp select x*16 from t2_temp;
+      insert into t2_temp select x*256 from t2_temp;
+      insert into t2_temp select x*65536 from t2_temp;
+      insert into t2_temp select x*2147483648 from t2_temp;
+      insert into t2_temp select x-1 from t2_temp;
+      insert into t2_temp select x+1 from t2_temp;
+      insert into t2_temp select -x from t2_temp;
+      INSERT INTO t2 SELECT DISTINCT(x) FROM t2_temp;
+      DROP TABLE t2_temp;
+      COMMIT;
+      select count(*) from t2;
+    }
+  } 371
+}
+do_test misc5-2.2 {
+  execsql {
+    select x from t2 order by x;
+  }
+} \
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+
+# Ticket #1210.  Do proper reference counting of Table structures
+# so that deeply nested SELECT statements can be flattened correctly.
+#
+ifcapable subquery {
+  do_test misc5-3.1 {
+    execsql {
+      CREATE TABLE songs(songid, artist, timesplayed);
+      INSERT INTO songs VALUES(1,'one',1);
+      INSERT INTO songs VALUES(2,'one',2);
+      INSERT INTO songs VALUES(3,'two',3);
+      INSERT INTO songs VALUES(4,'three',5);
+      INSERT INTO songs VALUES(5,'one',7);
+      INSERT INTO songs VALUES(6,'two',11);
+      SELECT DISTINCT artist 
+      FROM (    
+       SELECT DISTINCT artist    
+       FROM songs      
+       WHERE songid IN (    
+        SELECT songid    
+        FROM songs    
+        WHERE LOWER(artist) = (    
+          -- This sub-query is indeterminate. Because there is no ORDER BY,
+          -- it may return 'one', 'two' or 'three'. Because of this, the
+	  -- outermost parent query may correctly return any of 'one', 'two' 
+          -- or 'three' as well.
+          SELECT DISTINCT LOWER(artist)    
+          FROM (      
+            -- This sub-query returns the table:
+            --
+            --     two      14
+            --     one      10
+            --     three    5
+            --
+            SELECT DISTINCT artist,sum(timesplayed) AS total      
+            FROM songs      
+            GROUP BY LOWER(artist)      
+            ORDER BY total DESC      
+            LIMIT 10    
+          )    
+          WHERE artist <> '' 
+        )  
+       )       
+      )  
+      ORDER BY LOWER(artist) ASC;
+    }
+  } {two}
+}
+
+# Ticket #1370.  Do not overwrite small files (less than 1024 bytes)
+# when trying to open them as a database.
+#
+if {[permutation] == ""} {
+  do_test misc5-4.1 {
+    db close
+    forcedelete test.db
+    set fd [open test.db w]
+    puts $fd "This is not really a database"
+    close $fd
+    sqlite3 db test.db
+    catchsql {
+      CREATE TABLE t1(a,b,c);
+    }
+  } {1 {file is not a database}}
+  reset_db
+}
+
+# Ticket #1371.  Allow floating point numbers of the form .N  or N.
+#
+do_test misc5-5.1 {
+  execsql {SELECT .1 }
+} 0.1
+do_test misc5-5.2 {
+  execsql {SELECT 2. }
+} 2.0
+do_test misc5-5.3 {
+  execsql {SELECT 3.e0 }
+} 3.0
+do_test misc5-5.4 {
+  execsql {SELECT .4e+1}
+} 4.0
+
+# Ticket #1582.  Ensure that an unknown table in a LIMIT clause applied to
+# a UNION ALL query causes an error, not a crash.
+#
+db close
+forcedelete test.db
+sqlite3 db test.db
+ifcapable subquery&&compound {
+  do_test misc5-6.1 {
+    catchsql {
+      SELECT * FROM sqlite_master 
+      UNION ALL 
+      SELECT * FROM sqlite_master
+      LIMIT (SELECT count(*) FROM blah);
+    }
+  } {1 {no such table: blah}}
+  do_test misc5-6.2 {
+    execsql {
+      CREATE TABLE logs(msg TEXT, timestamp INTEGER, dbtime TEXT);
+    }
+    catchsql {
+      SELECT * FROM logs WHERE logs.oid >= (SELECT head FROM logs_base) 
+      UNION ALL 
+      SELECT * FROM logs 
+      LIMIT (SELECT lmt FROM logs_base) ;
+    }
+  } {1 {no such table: logs_base}}
+}
+
+# Overflow the lemon parser stack by providing an overly complex
+# expression.  Make sure that the overflow is detected and the
+# stack is grown automatically such that the application calling
+# SQLite never notices.
+#
+do_test misc5-7.1.1 {
+  execsql {CREATE TABLE t1(x)}
+  set sql "INSERT INTO t1 VALUES("
+  set tail ""
+  for {set i 0} {$i<200} {incr i} {
+    append sql "(1+"
+    append tail ")"
+  }
+  append sql "0$tail); SELECT * FROM t1;"
+  catchsql $sql
+} {0 200}
+do_test misc5-7.1.2 {
+  execsql {DELETE FROM t1}
+  set sql "INSERT INTO t1 VALUES("
+  set tail ""
+  for {set i 0} {$i<900} {incr i} {
+    append sql "(1+"
+    append tail ")"
+  }
+  append sql "0$tail); SELECT * FROM t1;"
+  catchsql $sql
+} {0 900}
+
+
+# Parser stack overflow is silently ignored when it occurs while parsing the
+# schema and PRAGMA writable_schema is turned on.
+#
+do_test misc5-7.2 {
+  sqlite3 db2 :memory:
+  sqlite3_db_config db2 DEFENSIVE 0
+  catchsql {
+    CREATE TABLE t1(x UNIQUE);
+    PRAGMA writable_schema=ON;
+    UPDATE sqlite_master SET sql='CREATE table t(o CHECK(((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((;VALUES(o)';
+    BEGIN;
+    CREATE TABLE t2(y);
+    ROLLBACK;
+    DROP TABLE IF EXISTS D;
+  } db2
+} {0 {}}
+db2 close
+  
+
+# Ticket #1911
+#
+ifcapable compound {
+  do_test misc5-9.1 {
+    execsql {
+      SELECT name, type FROM sqlite_master WHERE name IS NULL
+      UNION
+      SELECT type, name FROM sqlite_master WHERE type IS NULL
+      ORDER BY 1, 2, 1, 2, 1, 2
+    }
+  } {}
+  do_test misc5-9.2 {
+    execsql {
+      SELECT name, type FROM sqlite_master WHERE name IS NULL
+      UNION
+      SELECT type, name FROM sqlite_master WHERE type IS NULL
+      ORDER BY 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2
+    }
+  } {}
+}
+
+# Ticket #1912.  Make the tokenizer require a space after a numeric
+# literal.
+#
+do_test misc5-10.1 {
+  catchsql {
+    SELECT 123abc
+  }
+} {1 {unrecognized token: "123abc"}}
+do_test misc5-10.2 {
+  catchsql {
+    SELECT 1*123.4e5ghi;
+  }
+} {1 {unrecognized token: "123.4e5ghi"}}
+
+
+# Additional integer encoding tests.
+#
+do_test misc5-11.1 {
+  db eval {
+    CREATE TABLE t3(x);
+    INSERT INTO t3 VALUES(-18);
+    INSERT INTO t3 VALUES(-17);
+    INSERT INTO t3 VALUES(-16);
+    INSERT INTO t3 VALUES(-15);
+    INSERT INTO t3 VALUES(-14);
+    INSERT INTO t3 VALUES(-13);
+    INSERT INTO t3 VALUES(-12);
+    INSERT INTO t3 VALUES(-11);
+    INSERT INTO t3 VALUES(-10);
+    INSERT INTO t3 VALUES(-9);
+    INSERT INTO t3 VALUES(-8);
+    INSERT INTO t3 VALUES(-7);
+    INSERT INTO t3 VALUES(-6);
+    INSERT INTO t3 VALUES(-5);
+    INSERT INTO t3 VALUES(-4);
+    INSERT INTO t3 VALUES(-3);
+    INSERT INTO t3 VALUES(-2);
+    INSERT INTO t3 VALUES(-1);
+    INSERT INTO t3 VALUES(0);
+    INSERT INTO t3 VALUES(1);
+    INSERT INTO t3 VALUES(2);
+    INSERT INTO t3 VALUES(3);
+    INSERT INTO t3 VALUES(4);
+    INSERT INTO t3 VALUES(5);
+    INSERT INTO t3 VALUES(6);
+    INSERT INTO t3 VALUES(7);
+    INSERT INTO t3 VALUES(8);
+    INSERT INTO t3 VALUES(9);
+    INSERT INTO t3 VALUES(10);
+    INSERT INTO t3 VALUES(11);
+    INSERT INTO t3 VALUES(12);
+    INSERT INTO t3 VALUES(13);
+    INSERT INTO t3 VALUES(14);
+    INSERT INTO t3 VALUES(15);
+    INSERT INTO t3 VALUES(16);
+    INSERT INTO t3 VALUES(17);
+    INSERT INTO t3 VALUES(18);
+    INSERT INTO t3 VALUES(30);
+    INSERT INTO t3 VALUES(31);
+    INSERT INTO t3 VALUES(32);
+    INSERT INTO t3 VALUES(33);
+    INSERT INTO t3 VALUES(34);
+    INSERT INTO t3 VALUES(-30);
+    INSERT INTO t3 VALUES(-31);
+    INSERT INTO t3 VALUES(-32);
+    INSERT INTO t3 VALUES(-33);
+    INSERT INTO t3 VALUES(-34);
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+    INSERT INTO t3 VALUES(576460752303423488);
+    INSERT INTO t3 VALUES(576460752303423489);
+    INSERT INTO t3 VALUES(576460752303423490);
+    INSERT INTO t3 VALUES(-576460752303423486);
+    INSERT INTO t3 VALUES(-576460752303423487);
+    INSERT INTO t3 VALUES(-576460752303423488);
+    INSERT INTO t3 VALUES(-576460752303423489);
+    INSERT INTO t3 VALUES(-576460752303423490);
+    INSERT INTO t3 VALUES(1152921504606846974);
+    INSERT INTO t3 VALUES(1152921504606846975);
+    INSERT INTO t3 VALUES(1152921504606846976);
+    INSERT INTO t3 VALUES(1152921504606846977);
+    INSERT INTO t3 VALUES(1152921504606846978);
+    INSERT INTO t3 VALUES(-1152921504606846974);
+    INSERT INTO t3 VALUES(-1152921504606846975);
+    INSERT INTO t3 VALUES(-1152921504606846976);
+    INSERT INTO t3 VALUES(-1152921504606846977);
+    INSERT INTO t3 VALUES(-1152921504606846978);
+    INSERT INTO t3 VALUES(2305843009213693950);
+    INSERT INTO t3 VALUES(2305843009213693951);
+    INSERT INTO t3 VALUES(2305843009213693952);
+    INSERT INTO t3 VALUES(2305843009213693953);
+    INSERT INTO t3 VALUES(2305843009213693954);
+    INSERT INTO t3 VALUES(-2305843009213693950);
+    INSERT INTO t3 VALUES(-2305843009213693951);
+    INSERT INTO t3 VALUES(-2305843009213693952);
+    INSERT INTO t3 VALUES(-2305843009213693953);
+    INSERT INTO t3 VALUES(-2305843009213693954);
+    INSERT INTO t3 VALUES(4611686018427387902);
+    INSERT INTO t3 VALUES(4611686018427387903);
+    INSERT INTO t3 VALUES(4611686018427387904);
+    INSERT INTO t3 VALUES(4611686018427387905);
+    INSERT INTO t3 VALUES(4611686018427387906);
+    INSERT INTO t3 VALUES(-4611686018427387902);
+    INSERT INTO t3 VALUES(-4611686018427387903);
+    INSERT INTO t3 VALUES(-4611686018427387904);
+    INSERT INTO t3 VALUES(-4611686018427387905);
+    INSERT INTO t3 VALUES(-4611686018427387906);
+    INSERT INTO t3 VALUES(9223372036854775806);
+    INSERT INTO t3 VALUES(9223372036854775807);
+    INSERT INTO t3 VALUES(-9223372036854775806);
+    INSERT INTO t3 VALUES(-9223372036854775807);
+    INSERT INTO t3 VALUES(-9223372036854775808);
+    SELECT x FROM t3 ORDER BY x;
+  }
+} {-9223372036854775808\
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+4611686018427387905\
+4611686018427387906\
+9223372036854775806\
+9223372036854775807}
+
+finish_test
diff --git a/test/misc6.test b/test/misc6.test
new file mode 100644
index 0000000000000000000000000000000000000000..9840dd9db8880a1e3b62c1e7fa3fb662975cef6e
--- /dev/null
+++ b/test/misc6.test
@@ -0,0 +1,48 @@
+# 2006 September 4
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to make sure sqlite3_value_text()
+# always returns a null-terminated string.
+#
+# $Id: misc6.test,v 1.3 2007/04/23 23:56:32 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test misc6-1.1 {
+  set DB [sqlite3_connection_pointer db]
+  sqlite3_create_function $DB
+  set STMT [sqlite3_prepare $DB {SELECT hex8(?)} -1 DUMMY]
+  set sqlite_static_bind_value {0123456789}
+  set sqlite_static_bind_nbyte 5
+  sqlite_bind $STMT 1 {} static-nbytes
+  sqlite3_step $STMT
+} SQLITE_ROW
+do_test misc6-1.2 {
+  sqlite3_column_text $STMT 0
+} {3031323334}
+ifcapable utf16 {
+  do_test misc6-1.3 {
+    sqlite3_finalize $STMT
+    set STMT [sqlite3_prepare $DB {SELECT hex16(?)} -1 DUMMY]
+    set sqlite_static_bind_value {0123456789}
+    set sqlite_static_bind_nbyte 5
+    sqlite_bind $STMT 1 {} static-nbytes
+    sqlite3_step $STMT
+  } SQLITE_ROW
+  do_test misc6-1.4 {
+    sqlite3_column_text $STMT 0
+  } {00300031003200330034}
+}
+sqlite3_finalize $STMT
+
+finish_test
diff --git a/test/misc7.test b/test/misc7.test
new file mode 100644
index 0000000000000000000000000000000000000000..add9014b08a1e1ca4ef6620e4380ed1d152ad55d
--- /dev/null
+++ b/test/misc7.test
@@ -0,0 +1,573 @@
+# 2006 September 4
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# $Id: misc7.test,v 1.29 2009/07/16 18:21:18 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix misc7
+
+if {[clang_sanitize_address]==0} {
+  do_test misc7-1-misuse {
+    c_misuse_test
+  } {}
+}
+
+do_test misc7-2 {
+  c_realloc_test
+} {}
+
+do_test misc7-3 {
+  c_collation_test
+} {}
+
+# Try to open a directory:
+#
+do_test misc7-4 {
+  delete_file mydir
+  file mkdir mydir
+  set rc [catch {
+    sqlite3 db2 ./mydir
+  } msg]
+  list $rc $msg
+} {1 {unable to open database file}}
+
+# Try to open a file with a directory where its journal file should be.
+#
+if {[atomic_batch_write test.db]==0} {
+  do_test misc7-5 {
+    delete_file mydir
+    file mkdir mydir-journal
+    sqlite3 db2 ./mydir
+    catchsql {
+      CREATE TABLE abc(a, b, c);
+    } db2
+  } {1 {unable to open database file}}
+  db2 close
+}
+
+#--------------------------------------------------------------------
+# The following tests, misc7-6.* test the libraries behaviour when
+# it cannot open a file. To force this condition, we use up all the
+# file-descriptors before running sqlite. This probably only works
+# on unix.
+#
+
+proc use_up_files {} {
+  set ret [list]
+  catch {
+    while 1 { lappend ret [open test.db] }
+  }
+  return $ret
+}
+
+proc do_fileopen_test {prefix sql} {
+  set fd_list [use_up_files]
+  set ::go 1
+  set ::n 1
+  set ::sql $sql
+  while {$::go} {
+    catch {db close}
+    do_test ${prefix}.${::n} {
+      set rc [catch {
+        sqlite db test.db
+        db eval $::sql
+      } msg]
+      if {$rc == 0} {set ::go 0}
+  
+      expr {$rc == 0 || ($rc == 1 && [string first unable $msg]==0)}
+    } 1
+  
+    close [lindex $fd_list 0]
+    set fd_list [lrange $fd_list 1 end]
+    incr ::n
+  }
+  foreach fd $fd_list {
+    close $fd
+  }
+  db close
+}
+
+execsql { CREATE TABLE abc(a PRIMARY KEY, b, c); }
+db close
+
+if {$tcl_platform(platform)!="windows"} {
+  do_fileopen_test misc7-6.1 {
+    BEGIN;
+    INSERT INTO abc VALUES(1, 2, 3);
+    INSERT INTO abc VALUES(2, 3, 4);
+    INSERT INTO abc SELECT a+2, b, c FROM abc;
+    COMMIT;
+  }
+  
+  do_fileopen_test misc7-6.2 {
+    PRAGMA temp.cache_size = 1000;
+  }
+}
+
+#
+# End of tests for out-of-file-descriptors condition.
+#--------------------------------------------------------------------
+
+sqlite3 db test.db
+execsql {
+  DELETE FROM abc;
+  INSERT INTO abc VALUES(1, 2, 3);
+  INSERT INTO abc VALUES(2, 3, 4);
+  INSERT INTO abc SELECT a+2, b, c FROM abc;
+}
+  
+
+#--------------------------------------------------------------------
+# Test that the sqlite3_busy_timeout call seems to delay approximately
+# the right amount of time.
+#
+do_test misc7-7.0 {
+  sqlite3 db2 test.db
+  sqlite3_busy_timeout [sqlite3_connection_pointer db] 2000
+  execsql {
+    BEGIN EXCLUSIVE;
+  } db2
+
+  # Now db2 has an exclusive lock on the database file, and db has
+  # a busy-timeout of 2000 milliseconds. So check that trying to
+  # access the database using connection db delays for at least 1500 ms.
+  #
+  set tm [time {
+    set result [catchsql {
+        SELECT * FROM sqlite_master;
+      } db]
+  }]
+  set delay [lindex $tm 0]  ;# In microseconds
+  lappend result [expr {$delay>1500000 && $delay<4000000}]
+} {1 {database is locked} 1}
+db2 close
+
+#--------------------------------------------------------------------
+# Test that nothing goes horribly wrong when attaching a database
+# after the omit_readlock pragma has been exercised.
+#
+# Note:  The PRAGMA omit_readlock was an early hack to disable the
+# fcntl() calls for read-only databases so that read-only databases could
+# be read on broken NFS systems.  That pragma has now been removed.
+# (Use the unix-none VFS as a replacement, if needed.)  But these tests
+# do not really depend on omit_readlock, so we left them in place.
+#
+do_test misc7-7.1 {
+  forcedelete test2.db
+  forcedelete test2.db-journal
+  execsql {
+    PRAGMA omit_readlock = 1;
+    ATTACH 'test2.db' AS aux;
+    CREATE TABLE aux.hello(world);
+    SELECT name FROM aux.sqlite_master;
+  }
+} {hello}
+do_test misc7-7.2 {
+  execsql {
+    DETACH aux;
+  }
+} {}
+do_test misc7-7.3 {
+  db close
+  sqlite3 db test.db -readonly 1
+  execsql {
+    PRAGMA omit_readlock = 1;
+    ATTACH 'test2.db' AS aux;
+    SELECT name FROM aux.sqlite_master;
+    SELECT name FROM aux.sqlite_master;
+  }
+} {hello hello}
+do_test misc7-7.3 {
+  db close
+  sqlite3 db test.db
+  set ::DB [sqlite3_connection_pointer db]
+  list
+} {}
+
+# Test the UTF-16 version of the "out of memory" message (used when
+# malloc fails during sqlite3_open() ).
+#
+ifcapable utf16 {
+  do_test misc7-8 {
+    encoding convertfrom unicode [sqlite3_errmsg16 0x00000000]
+  } {out of memory}
+}
+
+do_test misc7-9 {
+  execsql {
+    SELECT * 
+    FROM (SELECT name+1 AS one FROM sqlite_master LIMIT 1 OFFSET 1) 
+    WHERE one LIKE 'hello%';
+  }
+} {}
+
+#--------------------------------------------------------------------
+# Improve coverage for vtab code.
+#
+ifcapable vtab {
+  # Run some debug code to improve reported coverage
+  #
+
+  # set sqlite_where_trace 1
+  do_test misc7-10 {
+    register_echo_module [sqlite3_connection_pointer db]
+    execsql {
+      CREATE VIRTUAL TABLE t1 USING echo(abc);
+      SELECT a FROM t1 WHERE a = 1 ORDER BY b;
+    }
+  } {1}
+  set sqlite_where_trace 0
+  do_catchsql_test misc7-10.1 {
+    INSERT INTO t1(a,b,c) VALUES(12345,2,3) ON CONFLICT(a) DO NOTHING;
+  } {1 {UPSERT not implemented for virtual table "t1"}}
+
+  # Specify an ORDER BY clause that cannot be indexed.
+  do_test misc7-11 {
+    execsql {
+      SELECT t1.a, t2.a FROM t1, t1 AS t2 ORDER BY 2 LIMIT 1;
+    }
+  } {1 1}
+
+  # The whole point of this is to test an error code other than
+  # SQLITE_NOMEM from the vtab xBestIndex callback.
+  #
+  do_ioerr_test misc7-12 -tclprep {
+    sqlite3 db2 test.db
+    register_echo_module [sqlite3_connection_pointer db2]
+    db2 eval {
+      CREATE TABLE abc(a PRIMARY KEY, b, c);
+      INSERT INTO abc VALUES(1, 2, 3);
+      CREATE VIRTUAL TABLE t1 USING echo(abc);
+    }
+    db2 close
+  } -tclbody {
+    register_echo_module [sqlite3_connection_pointer db]
+    execsql {SELECT * FROM t1 WHERE a = 1;}
+  } 
+
+  # The case where the virtual table module returns a very large number
+  # as the cost of a scan (greater than SQLITE_BIG_DOUBLE in the code).
+  #
+  do_test misc7-13 {
+    sqlite3 db test.db
+    register_echo_module [sqlite3_connection_pointer db]
+    set ::echo_module_cost 2.0e+99
+    execsql {SELECT * FROM t1 WHERE a = 1;}
+  } {1 2 3}
+  unset ::echo_module_cost
+}
+
+db close
+forcedelete test.db
+forcedelete test.db-journal
+sqlite3 db test.db
+
+ifcapable explain {
+  do_execsql_test misc7-14.0 {
+    CREATE TABLE abc(a PRIMARY KEY, b, c);
+  }
+  do_eqp_test misc7-14.1 {
+    SELECT * FROM abc AS t2 WHERE rowid = 1;
+  } {
+  QUERY PLAN
+  `--SEARCH t2 USING INTEGER PRIMARY KEY (rowid=?)
+}
+  do_eqp_test misc7-14.2 {
+    SELECT * FROM abc AS t2 WHERE a = 1;
+} {
+  QUERY PLAN
+  `--SEARCH t2 USING INDEX sqlite_autoindex_abc_1 (a=?)
+}
+  do_eqp_test misc7-14.3 {
+    SELECT * FROM abc AS t2 ORDER BY a;
+  } {
+  QUERY PLAN
+  `--SCAN t2 USING INDEX sqlite_autoindex_abc_1
+}
+}
+
+db close
+forcedelete test.db
+forcedelete test.db-journal
+sqlite3 db test.db
+
+#--------------------------------------------------------------------
+# This is all to force the pager_remove_from_stmt_list() function
+# (inside pager.c) to remove a pager from the middle of the
+# statement-list.
+#
+do_test misc7-15.1 {
+  execsql {
+    PRAGMA cache_size = 10;
+    BEGIN;
+    CREATE TABLE abc(a PRIMARY KEY, b, c);
+    INSERT INTO abc 
+    VALUES(randstr(100,100), randstr(100,100), randstr(100,100));
+    INSERT INTO abc SELECT 
+            randstr(100,100), randstr(100,100), randstr(100,100) FROM abc;
+    INSERT INTO abc SELECT 
+            randstr(100,100), randstr(100,100), randstr(100,100) FROM abc;
+    INSERT INTO abc SELECT 
+            randstr(100,100), randstr(100,100), randstr(100,100) FROM abc;
+    INSERT INTO abc SELECT 
+            randstr(100,100), randstr(100,100), randstr(100,100) FROM abc;
+    INSERT INTO abc SELECT 
+            randstr(100,100), randstr(100,100), randstr(100,100) FROM abc;
+    INSERT INTO abc SELECT 
+            randstr(100,100), randstr(100,100), randstr(100,100) FROM abc;
+    INSERT INTO abc SELECT 
+            randstr(100,100), randstr(100,100), randstr(100,100) FROM abc;
+    INSERT INTO abc SELECT 
+            randstr(100,100), randstr(100,100), randstr(100,100) FROM abc;
+    COMMIT;
+  }
+  expr {[file size test.db]>10240}
+} {1}
+do_test misc7-15.2 {
+  execsql {
+    DELETE FROM abc WHERE rowid > 12;
+    INSERT INTO abc SELECT 
+            randstr(100,100), randstr(100,100), randstr(100,100) FROM abc;
+  }
+} {}
+
+db close
+forcedelete test.db
+forcedelete test.db-journal
+sqlite3 db test.db
+
+do_ioerr_test misc7-16 -sqlprep {
+   PRAGMA cache_size = 10;
+   PRAGMA default_cache_size = 10;
+   CREATE TABLE t3(a, b, UNIQUE(a, b));
+   INSERT INTO t3 VALUES( randstr(100, 100), randstr(100, 100) );
+   INSERT INTO t3 SELECT randstr(100, 100), randstr(100, 100) FROM t3;
+   INSERT INTO t3 SELECT randstr(100, 100), randstr(100, 100) FROM t3;
+   INSERT INTO t3 SELECT randstr(100, 100), randstr(100, 100) FROM t3;
+   INSERT INTO t3 SELECT randstr(100, 100), randstr(100, 100) FROM t3;
+   INSERT INTO t3 SELECT randstr(100, 100), randstr(100, 100) FROM t3;
+   UPDATE t3 
+   SET b = 'hello world'
+   WHERE rowid >= (SELECT max(rowid)-1 FROM t3);
+} -tclbody {
+  set rc [catch {db eval {
+    BEGIN;
+      PRAGMA cache_size = 10;
+      INSERT INTO t3 VALUES( randstr(100, 100), randstr(100, 100) );
+      UPDATE t3 SET a = b;
+    COMMIT;
+  }} msg]
+
+  if {!$rc || ($rc && [string first "UNIQUE" $msg]==0)} {
+    set msg
+  } else {
+    error $msg
+  }
+}
+
+sqlite3 db test.db
+
+do_test misc7-16.X {
+  execsql {
+    SELECT count(*) FROM t3;
+  }
+} {32}
+
+#----------------------------------------------------------------------
+# Test the situation where a hot-journal is discovered but write-access
+# to it is denied. This should return SQLITE_BUSY.
+#
+# These tests do not work on windows due to restrictions in the
+# windows file system.
+#
+if {$tcl_platform(platform)!="windows"} {
+
+  # Some network filesystems (ex: AFP) do not support setting read-only
+  # permissions.  Only run these tests if full unix permission setting
+  # capabilities are supported.
+  #
+  file attributes test.db -permissions rw-r--r--
+  if {[file attributes test.db -permissions]==0644} {
+
+    do_test misc7-17.1 {
+      execsql {
+        BEGIN;
+        DELETE FROM t3 WHERE (oid%3)==0;
+      }
+      forcecopy test.db bak.db
+      forcecopy test.db-journal bak.db-journal
+      execsql {
+        COMMIT;
+      }
+    
+      db close
+      forcecopy bak.db test.db
+      forcecopy bak.db-journal test.db-journal
+      sqlite3 db test.db
+    
+      catch {file attributes test.db-journal -permissions r--------}
+      catch {file attributes test.db-journal -readonly 1}
+      catchsql {
+        SELECT count(*) FROM t3;
+      }
+    } {1 {unable to open database file}}
+    do_test misc7-17.2 {
+      # Note that the -readonly flag must be cleared before the -permissions
+      # are set. Otherwise, when using tcl 8.5 on mac, the fact that the 
+      # -readonly flag is set causes the attempt to set the permissions
+      # to fail.
+      catch {file attributes test.db-journal -readonly 0}
+      catch {file attributes test.db-journal -permissions rw-------}
+      catchsql {
+        SELECT count(*) FROM t3;
+      }
+    } {0 32}
+    
+    # sqlite3_test_control_pending_page [expr ($::sqlite_pending_byte / 1024) + 1]
+    set ::pending_byte_page [expr ($::sqlite_pending_byte / 1024) + 1]
+    sqlite3_test_control_pending_byte $::sqlite_pending_byte 
+    do_test misc7-17.3 {
+      sqlite3_db_config db DEFENSIVE 0
+      db eval {
+        pragma writable_schema = true;
+        UPDATE sqlite_master 
+          SET rootpage = $pending_byte_page
+          WHERE type = 'table' AND name = 't3';
+      }
+      execsql {
+        SELECT rootpage FROM sqlite_master WHERE type = 'table' AND name = 't3';
+      }
+    } $::pending_byte_page
+    
+    do_test misc7-17.4 {
+      db close
+      sqlite3 db test.db
+      catchsql {
+        SELECT count(*) FROM t3;
+      } 
+    } {1 {malformed database schema (t3) - invalid rootpage}}
+  }
+}
+
+# Ticket #2470
+#
+reset_db
+do_test misc7-18.1 {
+  execsql {
+    CREATE TABLE table_1 (col_10);
+    CREATE TABLE table_2 (
+      col_1, col_2, col_3, col_4, col_5,
+      col_6, col_7, col_8, col_9, col_10
+    );
+    SELECT a.col_10
+    FROM
+      (SELECT table_1.col_10 AS col_10 FROM table_1) a,
+      (SELECT table_1.col_10, table_2.col_9 AS qcol_9
+         FROM table_1, table_2
+        GROUP BY table_1.col_10, qcol_9);
+  }
+} {}
+
+# Testing boundary conditions on sqlite3_status()
+#
+do_test misc7-19.1 {
+  sqlite3_status -1 0
+} {21 0 0}
+do_test misc7-19.2 {
+  sqlite3_status 1000 0
+} {21 0 0}
+
+
+# sqlite3_global_recover() is a no-op.  But we might as well test it
+# if only to get the test coverage.
+#
+do_test misc7-20.1 {
+  sqlite3_global_recover
+} {SQLITE_OK}
+
+# Try to open a really long file name.
+#
+do_test misc7-21.1 {
+  set zFile [file join [get_pwd] "[string repeat abcde 104].db"]
+  set rc [catch {sqlite3 db2 $zFile} msg]
+  list $rc $msg
+} {1 {unable to open database file}}
+
+# Try to do hot-journal rollback with a read-only connection. The 
+# error code should be SQLITE_READONLY_ROLLBACK.
+#
+do_test misc7-22.1 {
+  db close
+  forcedelete test.db copy.db-journal
+  sqlite3 db test.db
+  execsql {
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, 2);
+    INSERT INTO t1 VALUES(3, 4);
+  }
+  db close
+  sqlite3 db test.db -readonly 1
+  catchsql {
+    INSERT INTO t1 VALUES(5, 6);
+  }
+} {1 {attempt to write a readonly database}}
+do_test misc7-22.2 { execsql { SELECT * FROM t1 } } {1 2 3 4}
+do_test misc7-22.3 { 
+  set fd [open test.db-journal w]
+  puts $fd [string repeat abc 1000]
+  close $fd
+  catchsql { SELECT * FROM t1 }
+} {1 {attempt to write a readonly database}}
+do_test misc7-22.4 { 
+  sqlite3_extended_errcode db
+} SQLITE_READONLY_ROLLBACK
+catch { db close }
+forcedelete test.db
+
+if {$::tcl_platform(platform)=="unix"
+ && [atomic_batch_write test.db]==0
+} {
+  reset_db
+  do_execsql_test 23.0 {
+    CREATE TABLE t1(x, y);
+    INSERT INTO t1 VALUES(1, 2);
+  }
+  
+  do_test 23.1 {
+    db close
+    forcedelete tst
+    file mkdir tst
+    forcecopy test.db tst/test.db
+    file attributes tst -permissions r-xr-xr-x
+  } {}
+  
+  sqlite3 db tst/test.db
+  do_execsql_test 23.2 {
+    SELECT * FROM t1;
+  } {1 2}
+  
+  do_catchsql_test 23.3 {
+    INSERT INTO t1 VALUES(3, 4);
+  } {1 {attempt to write a readonly database}}
+  
+  do_test 23.4 {
+    sqlite3_extended_errcode db
+  } {SQLITE_READONLY_DIRECTORY}
+  
+  do_test 23.5 {
+    db close
+    forcedelete tst
+  } {}
+}
+
+finish_test
diff --git a/test/misc8.test b/test/misc8.test
new file mode 100644
index 0000000000000000000000000000000000000000..60b44fe1c7e23c009dcdac1dc184454bed0e0471
--- /dev/null
+++ b/test/misc8.test
@@ -0,0 +1,146 @@
+# 2014-11-10
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+# The focus of this script is testing the "eval.c" loadable extension.
+# 
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+load_static_extension db eval
+do_execsql_test misc8-1.0 {
+  CREATE TABLE t1(a,b,c);
+  INSERT INTO t1 VALUES(1,2,3),(4,5,6);
+  SELECT quote(eval('SELECT * FROM t1 ORDER BY a','-abc-'));
+} {'1-abc-2-abc-3-abc-4-abc-5-abc-6'}
+do_execsql_test misc8-1.1 {
+  SELECT quote(eval('SELECT * FROM t1 ORDER BY a'));
+} {{'1 2 3 4 5 6'}}
+do_catchsql_test misc8-1.2 {
+  SELECT quote(eval('SELECT d FROM t1 ORDER BY a'));
+} {1 {no such column: d}}
+do_execsql_test misc8-1.3 {
+  INSERT INTO t1 VALUES(7,null,9);
+  SELECT eval('SELECT * FROM t1 ORDER BY a',',');
+} {1,2,3,4,5,6,7,,9}
+do_catchsql_test misc8-1.4 {
+  BEGIN;
+  INSERT INTO t1 VALUES(10,11,12);
+  SELECT a, coalesce(b, eval('ROLLBACK; SELECT ''bam'';')), c
+   FROM t1 ORDER BY a;
+} {0 {1 2 3 4 5 6 7 bam 9}}
+do_catchsql_test misc8-1.5 {
+  INSERT INTO t1 VALUES(10,11,12);
+  SELECT a, coalesce(b, eval('SELECT ''bam''')), c
+    FROM t1
+   ORDER BY rowid;
+} {0 {1 2 3 4 5 6 7 bam 9 10 11 12}}
+do_catchsql_test misc8-1.6 {
+  SELECT a, coalesce(b, eval('DELETE FROM t1; SELECT ''bam''')), c
+    FROM t1
+   ORDER BY rowid;
+} {0 {1 2 3 4 5 6 7 bam {}}}
+do_catchsql_test misc8-1.7 {
+  INSERT INTO t1 VALUES(1,2,3),(4,5,6),(7,null,9);
+  BEGIN;
+  CREATE TABLE t2(x);
+  SELECT a, coalesce(b, eval('ROLLBACK; SELECT ''bam''')), c
+    FROM t1
+   ORDER BY rowid;
+} {1 {abort due to ROLLBACK}}
+
+do_catchsql_test misc8-1.8 {
+  PRAGMA empty_result_callbacks = 1;
+  SELECT eval('SELECT * FROM t1 WHERE 1 = 0;');
+} {0 {{}}}
+
+reset_db
+
+proc dbeval {sql} { db eval $sql }
+db func eval dbeval
+
+do_execsql_test misc8-2.1 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b INTEGER) WITHOUT ROWID;
+  CREATE TABLE t2(c INTEGER PRIMARY KEY, d INTEGER, x BLOB);
+  INSERT INTO t1 VALUES(0,0);
+  INSERT INTO t1 VALUES(10,10);
+  INSERT INTO t2 VALUES(1,1,zeroblob(200));
+  INSERT INTO t2 VALUES(2,2,zeroblob(200));
+  INSERT INTO t2 VALUES(3,3,zeroblob(200));
+  INSERT INTO t2 VALUES(4,4,zeroblob(200));
+  INSERT INTO t2 VALUES(5,5,zeroblob(200));
+  INSERT INTO t2 VALUES(6,6,zeroblob(200));
+  INSERT INTO t2 VALUES(7,7,zeroblob(200));
+  INSERT INTO t2 VALUES(8,8,zeroblob(200));
+  INSERT INTO t2 VALUES(9,9,zeroblob(200));
+  INSERT INTO t2 VALUES(10,10,zeroblob(200));
+  SELECT a, c, eval(
+      printf('DELETE FROM t2 WHERE c=%d AND %d>5', a+c, a+c)
+  ) FROM t1, t2;
+} {
+  0 1 {} 10 1 {} 
+  0 2 {} 10 2 {} 
+  0 3 {} 10 3 {} 
+  0 4 {} 10 4 {} 
+  0 5 {} 10 5 {} 
+  0 6 {} 10 {} {} 
+  0 7 {} 10 {} {} 
+  0 8 {} 10 {} {}
+  0 9 {} 10 {} {} 
+  0 10 {} 10 {} {}
+}
+
+# 2016-02-26: An assertion fault found by the libFuzzer project
+#
+ifcapable allow_rowid_in_view {
+  set nosuch "1 {ambiguous column name: rowid}"
+} else {
+  set nosuch "1 {no such column: rowid}"
+}
+do_catchsql_test misc8-3.0 {
+  SELECT *
+    FROM
+         (
+           (SELECT 0 AS i) AS x1,
+           (SELECT 1) AS x2
+         ) AS x3,
+         (SELECT 6 AS j UNION ALL SELECT 7) AS x4
+   WHERE i<rowid
+   ORDER BY 1;
+} $nosuch
+
+# The SQLITE_DBCONFIG_MAINDBNAME interface
+#
+db close
+forcedelete test.db test2.db
+sqlite3 db test.db
+do_execsql_test misc8-4.0 {
+  CREATE TABLE t1(a,b,c);
+  INSERT INTO t1 VALUES(1,2,3);
+  ATTACH 'test2.db' AS aux2;
+  CREATE TABLE aux2.t2(c,d,e);
+  INSERT INTO t2 VALUES(4,5,6);
+  SELECT * FROM t1, t2;
+} {1 2 3 4 5 6}
+do_execsql_test misc8-4.1 {
+  PRAGMA database_list;
+} {/0 main .* 2 aux2/}
+dbconfig_maindbname_icecube db
+do_execsql_test misc8-4.2 {
+  SELECT name FROM icecube.sqlite_master;
+} {t1}
+do_test misc8-4.3 {
+  regexp {0 icecube .* 2 aux2} [db eval {PRAGMA database_list}] 
+} 1
+
+
+
+finish_test
diff --git a/test/misuse.test b/test/misuse.test
new file mode 100644
index 0000000000000000000000000000000000000000..e15cf3357e7fea4b2fb3e1211bb75abc9cd4f194
--- /dev/null
+++ b/test/misuse.test
@@ -0,0 +1,210 @@
+# 2002 May 10
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests for the SQLITE_MISUSE detection logic.
+# This test file leaks memory and file descriptors.
+#
+# $Id: misuse.test,v 1.11 2006/01/03 00:33:50 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+proc catchsql2 {sql} {
+  set r [
+    catch {
+      set res [list]
+      db eval $sql data {
+        if { $res==[list] } {
+          foreach f $data(*) {lappend res $f}
+        }
+        foreach f $data(*) {lappend res $data($f)}
+      }
+      set res
+    } msg
+  ]
+  lappend r $msg
+}
+
+
+# Make sure the test logic works
+#
+do_test misuse-1.1 {
+  db close
+  catch {forcedelete test2.db}
+  catch {forcedelete test2.db-journal}
+  sqlite3 db test2.db; set ::DB [sqlite3_connection_pointer db]
+  execsql {
+    CREATE TABLE t1(a,b);
+    INSERT INTO t1 VALUES(1,2);
+  }
+  catchsql2 {
+    SELECT * FROM t1
+  }
+} {0 {a b 1 2}}
+do_test misuse-1.2 {
+  catchsql2 {
+    SELECT x_coalesce(NULL,a) AS 'xyz' FROM t1
+  }
+} {1 {no such function: x_coalesce}}
+do_test misuse-1.3 {
+  sqlite3_create_function $::DB
+  catchsql2 {
+    SELECT x_coalesce(NULL,a) AS 'xyz' FROM t1
+  }
+} {0 {xyz 1}}
+
+# Use the x_sqlite_exec() SQL function to simulate the effect of two
+# threads trying to use the same database at the same time.
+#
+# It used to be prohibited to invoke sqlite_exec() from within a function,
+# but that has changed.  The following tests used to cause errors but now
+# they do not.
+#
+ifcapable {utf16} {
+  do_test misuse-1.4 {
+    catchsql2 {
+       SELECT x_sqlite_exec('SELECT * FROM t1') AS xyz;
+    } 
+  } {0 {xyz {1 2}}}
+}
+do_test misuse-1.5 {
+  catchsql2 {SELECT * FROM t1}
+} {0 {a b 1 2}}
+do_test misuse-1.6 {
+  catchsql {
+    SELECT * FROM t1
+  }
+} {0 {1 2}}
+
+# Attempt to register a new SQL function while an sqlite_exec() is active.
+#
+do_test misuse-2.1 {
+  db close
+  sqlite3 db test2.db; set ::DB [sqlite3_connection_pointer db]
+  execsql {
+    SELECT * FROM t1
+  }
+} {1 2}
+do_test misuse-2.2 {
+  catchsql2 {SELECT * FROM t1}
+} {0 {a b 1 2}}
+
+# We used to disallow creating new function from within an exec().
+# But now this is acceptable.
+do_test misuse-2.3 {
+  set v [catch {
+    db eval {SELECT * FROM t1} {} {
+      sqlite3_create_function $::DB
+    }
+  } msg]
+  lappend v $msg
+} {0 {}}
+do_test misuse-2.4 {
+  catchsql2 {SELECT * FROM t1}
+} {0 {a b 1 2}}
+do_test misuse-2.5 {
+  catchsql {
+    SELECT * FROM t1
+  }
+} {0 {1 2}}
+
+# Attempt to register a new SQL aggregate while an sqlite_exec() is active.
+#
+do_test misuse-3.1 {
+  db close
+  sqlite3 db test2.db; set ::DB [sqlite3_connection_pointer db]
+  execsql {
+    SELECT * FROM t1
+  }
+} {1 2}
+do_test misuse-3.2 {
+  catchsql2 {SELECT * FROM t1}
+} {0 {a b 1 2}}
+
+# We used to disallow creating new function from within an exec().
+# But now this is acceptable.
+do_test misuse-3.3 {
+  set v [catch {
+    db eval {SELECT * FROM t1} {} {
+      sqlite3_create_aggregate $::DB
+    }
+  } msg]
+  lappend v $msg
+} {0 {}}
+do_test misuse-3.4 {
+  catchsql2 {SELECT * FROM t1}
+} {0 {a b 1 2}}
+do_test misuse-3.5 {
+  catchsql {
+    SELECT * FROM t1
+  }
+} {0 {1 2}}
+
+# Attempt to close the database from an sqlite_exec callback.
+#
+# Update for v3: The db cannot be closed because there are active
+# VMs. The sqlite3_close call would return SQLITE_BUSY.
+do_test misuse-4.1 {
+  db close
+  sqlite3 db test2.db; set ::DB [sqlite3_connection_pointer db]
+  execsql {
+    SELECT * FROM t1
+  }
+} {1 2}
+do_test misuse-4.2 {
+  catchsql2 {SELECT * FROM t1}
+} {0 {a b 1 2}}
+do_test misuse-4.3 {
+  set v [catch {
+    db eval {SELECT * FROM t1} {} {
+      set r [sqlite3_close $::DB]
+    }
+  } msg]
+  lappend v $msg $r
+} {0 {} SQLITE_BUSY}
+
+if {[clang_sanitize_address]==0} {
+  do_test misuse-4.4 {
+  # Flush the TCL statement cache here, otherwise the sqlite3_close() will
+  # fail because there are still un-finalized() VDBEs.
+    db cache flush
+      sqlite3_close $::DB
+      catchsql2 {SELECT * FROM t1}
+  } {1 {bad parameter or other API misuse}}
+  do_test misuse-4.5 {
+    catchsql {
+      SELECT * FROM t1
+    }
+  } {1 {bad parameter or other API misuse}}
+
+  # Attempt to use a database after it has been closed.
+  #
+  do_test misuse-5.1 {
+    db close
+      sqlite3 db test2.db; set ::DB [sqlite3_connection_pointer db]
+      execsql {
+        SELECT * FROM t1
+      }
+  } {1 2}
+  do_test misuse-5.2 {
+    catchsql2 {SELECT * FROM t1}
+  } {0 {a b 1 2}}
+  do_test misuse-5.3 {
+    db close
+      set r [catch {
+        sqlite3_prepare $::DB {SELECT * FROM t1} -1 TAIL
+      } msg]
+    lappend r $msg
+  } {1 {(21) bad parameter or other API misuse}}
+}
+
+finish_test
diff --git a/test/mjournal.test b/test/mjournal.test
new file mode 100644
index 0000000000000000000000000000000000000000..7aaa86bae02a78a3e1cb95246de0ff5fb37271ee
--- /dev/null
+++ b/test/mjournal.test
@@ -0,0 +1,162 @@
+# 2017 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix mjournal
+
+if {[permutation]=="inmemory_journal"} {
+  finish_test
+  return
+}
+
+# Test that nothing bad happens if a journal file contains a pointer to
+# a master journal file that does not have a "-" in the name. At one point
+# this was causing a segfault on unix.
+#
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b);
+}
+
+do_test 1.1 {
+  forcedelete test.db2journal test.db-journal
+
+  close [open test.db-journal w]
+  
+  hexio_write test.db-journal 0 746573742e6462326a6f75726e616c00
+  hexio_write test.db-journal 16 00000010
+  hexio_write test.db-journal 20 000005e1
+  hexio_write test.db-journal 24 d9d505f920a163d7
+
+  close [open test.db2journal w]
+  hexio_write test.db2journal 0 abcd
+} {2}
+
+do_execsql_test 1.2 {
+  SELECT * FROM t1;
+}
+
+do_test 1.3 {
+  forcedelete test0db2journal test.db-journal
+  close [open test.db-journal w]
+  hexio_write test.db-journal 0 74657374306462326a6f75726e616c00
+  hexio_write test.db-journal 16 00000010
+  hexio_write test.db-journal 20 000005e3
+  hexio_write test.db-journal 24 d9d505f920a163d7
+
+  close [open test0db2journal w]
+  hexio_write test0db2journal 0 abcd
+} {2}
+
+do_execsql_test 1.4 {
+  SELECT * FROM t1;
+}
+
+# And now test that nothing bad happens if a master journal contains a
+# pointer to a journal file that does not have a "-" in the name. 
+#
+do_test 1.5 {
+  forcedelete test.db2-master test.db-journal test1
+  close [open test.db-journal w]
+  hexio_write test.db-journal 0 746573742e6462322d6d617374657200
+  hexio_write test.db-journal 16 00000010
+  hexio_write test.db-journal 20 0000059f
+  hexio_write test.db-journal 24 d9d505f920a163d7
+
+  close [open test.db2-master w]
+  hexio_write test.db2-master 0 746573743100
+
+  close [open test1 w]
+  hexio_write test1 0 abcd
+} {2}
+
+do_execsql_test 1.6 {
+  SELECT * FROM t1;
+}
+
+#-------------------------------------------------------------------------
+# Check that master journals are not created if the transaction involves
+# multiple temp files.
+#
+db close
+testvfs tvfs
+tvfs filter xOpen
+tvfs script open_cb
+set ::open ""
+proc open_cb {method file arglist} {
+  lappend ::open $file
+}
+
+proc contains_mj {} {
+  foreach f $::open {
+    set t [file tail $f]
+    if {[string match *mj* $t]} { return 1 }
+  }
+  return 0
+}
+
+# Like [do_execsql_test], except that a boolean indicating whether or
+# not a master journal file was opened ([file tail] contains "mj") or
+# not. Example:
+#
+#   do_hasmj_test 1.0 { SELECT 'a', 'b' } {0 a b}
+#
+proc do_hasmj_test {tn sql expected} {
+  set ::open [list]
+  uplevel [list do_test $tn [subst -nocommands {
+    set res [execsql "$sql"]
+    concat [contains_mj] [set res]
+  }] [list {*}$expected]]
+}
+
+forcedelete test.db
+forcedelete test.db2
+forcedelete test.db3
+sqlite3 db test.db -vfs tvfs
+
+do_execsql_test 2.0 {
+  ATTACH 'test.db2' AS dbfile;
+  ATTACH ''         AS dbtemp;
+  ATTACH ':memory:'  AS dbmem;
+
+  CREATE TABLE t1(x);
+  CREATE TABLE dbfile.t2(x);
+  CREATE TABLE dbtemp.t3(x);
+  CREATE TABLE dbmem.t4(x);
+}
+
+# Two real files.
+do_hasmj_test 2.1 {
+  BEGIN;
+    INSERT INTO t1 VALUES(1);
+    INSERT INTO t2 VALUES(1);
+  COMMIT;
+} {1}
+
+# One real, one temp file.
+do_hasmj_test 2.2 {
+  BEGIN;
+    INSERT INTO t1 VALUES(1);
+    INSERT INTO t3 VALUES(1);
+  COMMIT;
+} {0}
+
+# One file, one :memory: db.
+do_hasmj_test 2.3 {
+  BEGIN;
+    INSERT INTO t1 VALUES(1);
+    INSERT INTO t4 VALUES(1);
+  COMMIT;
+} {0}
+
+finish_test
diff --git a/test/mmap1.test b/test/mmap1.test
new file mode 100644
index 0000000000000000000000000000000000000000..6a9625427a756dc23aef5851c5ab5f22126eb6da
--- /dev/null
+++ b/test/mmap1.test
@@ -0,0 +1,323 @@
+# 2013 March 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable !mmap||!incrblob {
+  finish_test
+  return
+}
+source $testdir/lock_common.tcl
+set testprefix mmap1
+
+proc nRead {db} {
+  set bt [btree_from_db $db]
+  db_enter $db
+  array set stats [btree_pager_stats $bt]
+  db_leave $db
+  # puts [array get stats]
+  return $stats(read)
+}
+
+# Return a Tcl script that registers a user-defined scalar function 
+# named rblob() with database handle $dbname. The function returns a
+# sequence of pseudo-random blobs based on seed value $seed.
+#
+proc register_rblob_code {dbname seed} {
+  return [subst -nocommands {
+    set ::rcnt $seed
+    proc rblob {n} {
+      set ::rcnt [expr (([set ::rcnt] << 3) + [set ::rcnt] + 456) & 0xFFFFFFFF]
+      set str [format %.8x [expr [set ::rcnt] ^ 0xbdf20da3]]
+      string range [string repeat [set str] [expr [set n]/4]] 1 [set n]
+    }
+    $dbname func rblob rblob
+  }]
+}
+
+
+# For cases 1.1 and 1.4, the number of pages read using xRead() is 8 on
+# unix and 12 on windows. The difference is that windows only ever maps
+# an integer number of OS pages (i.e. creates mappings that are a multiple
+# of 4KB in size). Whereas on unix any sized mapping may be created.
+#
+foreach {t mmap_size nRead c2init} {
+  1.1 { PRAGMA mmap_size = 67108864 } /8|12/   {PRAGMA mmap_size = 0}
+  1.2 { PRAGMA mmap_size =    53248 } /15[34]/ {PRAGMA mmap_size = 0}
+  1.3 { PRAGMA mmap_size =        0 } 344      {PRAGMA mmap_size = 0}
+  1.4 { PRAGMA mmap_size = 67108864 } /12|8/   {PRAGMA mmap_size = 67108864 }
+  1.5 { PRAGMA mmap_size =    53248 } /15[34]/ {PRAGMA mmap_size = 67108864 }
+  1.6 { PRAGMA mmap_size =        0 } 344      {PRAGMA mmap_size = 67108864 }
+} {
+
+  do_multiclient_test tn {
+    sql1 {PRAGMA cache_size=2000}
+    sql2 {PRAGMA cache_size=2000}
+
+    sql1 {PRAGMA page_size=1024}
+    sql1 $mmap_size
+    sql2 $c2init
+
+    code2 [register_rblob_code db2 0]
+
+    sql2 {
+      PRAGMA page_size=1024;
+      PRAGMA auto_vacuum = 1;
+      CREATE TABLE t1(a, b, UNIQUE(a, b));
+      INSERT INTO t1 VALUES(rblob(500), rblob(500));
+      INSERT INTO t1 SELECT rblob(500), rblob(500) FROM t1; --    2
+      INSERT INTO t1 SELECT rblob(500), rblob(500) FROM t1; --    4
+      INSERT INTO t1 SELECT rblob(500), rblob(500) FROM t1; --    8
+      INSERT INTO t1 SELECT rblob(500), rblob(500) FROM t1; --   16
+      INSERT INTO t1 SELECT rblob(500), rblob(500) FROM t1; --   32
+    }
+    do_test $t.$tn.1 {
+      sql1 "SELECT count(*) FROM t1; PRAGMA integrity_check ; PRAGMA page_count"
+    } {32 ok 77}
+
+    # Have connection 2 shrink the file. Check connection 1 can still read it.
+    sql2 { DELETE FROM t1 WHERE rowid%2; }
+    do_test $t.$tn.2 {
+      sql1 "SELECT count(*) FROM t1; PRAGMA integrity_check ; PRAGMA page_count"
+    } "16 ok [expr {42+[nonzero_reserved_bytes]}]"
+
+    # Have connection 2 grow the file. Check connection 1 can still read it.
+    sql2 { INSERT INTO t1 SELECT rblob(500), rblob(500) FROM t1 }
+    do_test $t.$tn.3 {
+      sql1 "SELECT count(*) FROM t1; PRAGMA integrity_check ; PRAGMA page_count"
+    } {32 ok 79}
+
+    # Have connection 2 grow the file again. Check connection 1 is still ok.
+    sql2 { INSERT INTO t1 SELECT rblob(500), rblob(500) FROM t1 }
+    do_test $t.$tn.4 {
+      sql1 "SELECT count(*) FROM t1; PRAGMA integrity_check ; PRAGMA page_count"
+    } {64 ok 149}
+
+    # Check that the number of pages read by connection 1 indicates that the
+    # "PRAGMA mmap_size" command worked.
+    if {[nonzero_reserved_bytes]==0} {
+      do_test $t.$tn.5 { nRead db } $nRead
+    }
+  }
+}
+
+set ::rcnt 0
+proc rblob {n} {
+  set ::rcnt [expr (($::rcnt << 3) + $::rcnt + 456) & 0xFFFFFFFF]
+  set str [format %.8x [expr $::rcnt ^ 0xbdf20da3]]
+  string range [string repeat $str [expr $n/4]] 1 $n
+}
+
+reset_db
+db func rblob rblob
+
+ifcapable wal {
+  do_execsql_test 2.1 {
+    PRAGMA auto_vacuum = 1;
+    PRAGMA mmap_size = 67108864;
+    PRAGMA journal_mode = wal;
+    CREATE TABLE t1(a, b, UNIQUE(a, b));
+    INSERT INTO t1 VALUES(rblob(500), rblob(500));
+    INSERT INTO t1 SELECT rblob(500), rblob(500) FROM t1; --    2
+    INSERT INTO t1 SELECT rblob(500), rblob(500) FROM t1; --    4
+    INSERT INTO t1 SELECT rblob(500), rblob(500) FROM t1; --    8
+    INSERT INTO t1 SELECT rblob(500), rblob(500) FROM t1; --   16
+    INSERT INTO t1 SELECT rblob(500), rblob(500) FROM t1; --   32
+    PRAGMA wal_checkpoint;
+  } {67108864 wal 0 103 103}
+
+  do_execsql_test 2.2 {
+    PRAGMA auto_vacuum;
+    SELECT count(*) FROM t1;
+  } {1 32}
+
+  if {[permutation] != "inmemory_journal"} {
+    do_test 2.3 {
+      sqlite3 db2 test.db
+      db2 func rblob rblob
+      db2 eval {
+        DELETE FROM t1 WHERE (rowid%4);
+          PRAGMA wal_checkpoint;
+      }
+      db2 eval {
+        INSERT INTO t1 SELECT rblob(500), rblob(500) FROM t1; --    16
+        SELECT count(*) FROM t1;
+      }
+    } {16}
+
+    do_execsql_test 2.4 {
+      PRAGMA wal_checkpoint;
+    } {0 24 24}
+    db2 close
+  }
+}
+
+reset_db
+execsql { PRAGMA mmap_size = 67108864; }
+db func rblob rblob
+do_execsql_test 3.1 {
+  PRAGMA auto_vacuum = 1;
+
+  CREATE TABLE t1(a, b, UNIQUE(a, b));
+  INSERT INTO t1 VALUES(rblob(500), rblob(500));
+  INSERT INTO t1 SELECT rblob(500), rblob(500) FROM t1; --    2
+  INSERT INTO t1 SELECT rblob(500), rblob(500) FROM t1; --    4
+  INSERT INTO t1 SELECT rblob(500), rblob(500) FROM t1; --    8
+
+  CREATE TABLE t2(a, b, UNIQUE(a, b));
+  INSERT INTO t2 SELECT * FROM t1;
+} {}
+
+do_test 3.2 {
+  set nRow 0
+  db eval {SELECT * FROM t2 ORDER BY a, b} {
+    if {$nRow==4} { db eval { DELETE FROM t1 } }
+    incr nRow
+  }
+  set nRow
+} {8}
+
+#-------------------------------------------------------------------------
+# Ensure that existing cursors using xFetch() pages see changes made
+# to rows using the incrblob API.
+#
+reset_db
+execsql { PRAGMA mmap_size = 67108864; }
+set aaa [string repeat a 400]
+set bbb [string repeat b 400]
+set ccc [string repeat c 400]
+set ddd [string repeat d 400]
+set eee [string repeat e 400]
+
+do_execsql_test 4.1 {
+  PRAGMA page_size = 1024;
+  CREATE TABLE t1(x);
+  INSERT INTO t1 VALUES($aaa);
+  INSERT INTO t1 VALUES($bbb);
+  INSERT INTO t1 VALUES($ccc);
+  INSERT INTO t1 VALUES($ddd);
+  SELECT * FROM t1;
+  BEGIN;
+} [list $aaa $bbb $ccc $ddd]
+
+do_test 4.2 {
+  set ::STMT [sqlite3_prepare db "SELECT * FROM t1 ORDER BY rowid" -1 dummy]
+  sqlite3_step $::STMT
+  sqlite3_column_text $::STMT 0
+} $aaa
+
+do_test 4.3 {
+  foreach r {2 3 4} {
+    set fd [db incrblob t1 x $r]
+    puts -nonewline $fd $eee
+    close $fd
+  }
+
+  set res [list]
+  while {"SQLITE_ROW" == [sqlite3_step $::STMT]} {
+    lappend res [sqlite3_column_text $::STMT 0]
+  }
+  set res
+} [list $eee $eee $eee]
+
+do_test 4.4 {
+  sqlite3_finalize $::STMT
+} SQLITE_OK
+
+do_execsql_test 4.5 { COMMIT }
+
+#-------------------------------------------------------------------------
+# Ensure that existing cursors holding xFetch() references are not
+# confused if those pages are moved to make way for the root page of a
+# new table or index.
+#
+reset_db
+execsql { PRAGMA mmap_size = 67108864; }
+do_execsql_test 5.1 {
+  PRAGMA auto_vacuum = 2;
+  PRAGMA page_size = 1024;
+  CREATE TABLE t1(x);
+  INSERT INTO t1 VALUES($aaa);
+  INSERT INTO t1 VALUES($bbb);
+  INSERT INTO t1 VALUES($ccc);
+  INSERT INTO t1 VALUES($ddd);
+
+  PRAGMA auto_vacuum;
+  SELECT * FROM t1;
+} [list 2 $aaa $bbb $ccc $ddd]
+
+do_test 5.2 {
+  set ::STMT [sqlite3_prepare db "SELECT * FROM t1 ORDER BY rowid" -1 dummy]
+  sqlite3_step $::STMT
+  sqlite3_column_text $::STMT 0
+} $aaa
+
+do_execsql_test 5.3 {
+  CREATE TABLE t2(x);
+  INSERT INTO t2 VALUES('tricked you!');
+  INSERT INTO t2 VALUES('tricked you!');
+}
+
+do_test 5.4 {
+  sqlite3_step $::STMT
+  sqlite3_column_text $::STMT 0
+} $bbb
+
+do_test 5.5 {
+  sqlite3_finalize $::STMT
+} SQLITE_OK
+
+#
+# The "6.*" tests are designed to test the interaction of mmap with file
+# truncation (e.g. on Win32) via the VACUUM command.
+#
+forcedelete test2.db
+sqlite3 db2 test2.db
+do_test 6.0 {
+  db2 eval {
+    PRAGMA auto_vacuum = 0;
+    PRAGMA page_size = 4096;
+  }
+} {}
+do_test 6.1 {
+  db2 eval {
+    CREATE TABLE t1(x);
+    INSERT INTO t1(x) VALUES(randomblob(1000000));
+  }
+} {}
+do_test 6.2 {
+  db2 eval {
+    PRAGMA mmap_size = 1048576;
+  }
+} {1048576}
+do_test 6.3 {
+  expr {[file size test2.db] > 1000000}
+} {1}
+do_test 6.4 {
+  db2 eval {
+    DELETE FROM t1;
+  }
+} {}
+do_test 6.5 {
+  expr {[file size test2.db] > 1000000}
+} {1}
+do_test 6.6 {
+  db2 eval {
+    VACUUM;
+  }
+} {}
+do_test 6.7 {
+  expr {[file size test2.db] < 1000000}
+} {1}
+db2 close
+
+finish_test
diff --git a/test/mmap2.test b/test/mmap2.test
new file mode 100644
index 0000000000000000000000000000000000000000..1f8346b915eac5b29d5d4a51d27bf9d793ec2bc0
--- /dev/null
+++ b/test/mmap2.test
@@ -0,0 +1,87 @@
+# 2013 March 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file tests the effect of the mmap() or mremap() system calls 
+# returning an error on the library. 
+#
+# If either mmap() or mremap() fails, SQLite should log an error 
+# message, then continue accessing the database using read() and 
+# write() exclusively.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix mmap2
+
+if {$::tcl_platform(platform)!="unix" || [test_syscall defaultvfs] != "unix"} {
+  finish_test
+  return
+}
+ifcapable !mmap {
+  finish_test
+  return
+}
+
+db close
+sqlite3_shutdown
+test_sqlite3_log xLog
+proc xLog {error_code msg} {
+  if {[string match os_unix.c* $msg]} {
+    lappend ::log $msg 
+  }
+}
+
+foreach syscall {mmap mremap} {
+  test_syscall uninstall 
+  if {[catch {test_syscall install $syscall}]} continue
+
+  for {set i 1} {$i < 20} {incr i} {
+    reset_db
+    execsql { PRAGMA mmap_size = 8000000 }
+
+    test_syscall fault $i 1
+    test_syscall errno $syscall ENOMEM
+    set ::log ""
+
+    do_execsql_test 1.$syscall.$i.1 {
+      CREATE TABLE t1(a, b, UNIQUE(a, b));
+      INSERT INTO t1 VALUES(randomblob(1000), randomblob(1000));
+      INSERT INTO t1 SELECT randomblob(1000), randomblob(1000) FROM t1;
+      INSERT INTO t1 SELECT randomblob(1000), randomblob(1000) FROM t1;
+      INSERT INTO t1 SELECT randomblob(1000), randomblob(1000) FROM t1;
+      INSERT INTO t1 SELECT randomblob(1000), randomblob(1000) FROM t1;
+      INSERT INTO t1 SELECT randomblob(1000), randomblob(1000) FROM t1;
+      INSERT INTO t1 SELECT randomblob(1000), randomblob(1000) FROM t1;
+    }
+
+    set nFail [test_syscall fault 0 0]
+
+    do_execsql_test 1.$syscall.$i.2 {
+      SELECT count(*) FROM t1;
+      PRAGMA integrity_check;
+    } {64 ok}
+
+    do_test 1.$syscall.$i.3 {
+      expr {$nFail==0 || $nFail==1}
+    } {1}
+
+    do_test 1.$syscall.$i.4.nFail=$nFail {
+      regexp ".*${syscall}.*" $::log
+    } [expr $nFail>0]
+  }
+}
+
+db close
+test_syscall uninstall 
+sqlite3_shutdown
+test_sqlite3_log 
+sqlite3_initialize
+finish_test
diff --git a/test/mmap3.test b/test/mmap3.test
new file mode 100644
index 0000000000000000000000000000000000000000..184dda5f866fe696ba841838dd92f2039ddefce2
--- /dev/null
+++ b/test/mmap3.test
@@ -0,0 +1,101 @@
+# 2013-05-23
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable !mmap||!vtab {
+  finish_test
+  return
+}
+source $testdir/lock_common.tcl
+set testprefix mmap3
+
+# A codec shuts down memory-mapped I/O
+if {[nonzero_reserved_bytes]} {finish_test; return;}
+
+do_test mmap3-1.0 {
+  load_static_extension db wholenumber
+  db eval {
+    PRAGMA mmap_size=100000;
+    CREATE TABLE t1(x, y);
+    CREATE VIRTUAL TABLE nums USING wholenumber;
+    INSERT INTO t1 SELECT value, randomblob(value) FROM nums
+                    WHERE value BETWEEN 1 and 1000;
+    SELECT sum(x), sum(length(y)) from t1;
+    PRAGMA mmap_size;
+  }
+} {100000 500500 500500 100000}
+do_test mmap3-1.2 {
+  db eval {
+    PRAGMA mmap_size=50000;
+    CREATE TABLE t2(a,b);
+    SELECT name FROM sqlite_master WHERE type='table' ORDER BY 1;
+    PRAGMA quick_check;
+    PRAGMA mmap_size;
+  }
+} {50000 nums t1 t2 ok 50000}
+do_test mmap3-1.3 {
+  db eval {
+    PRAGMA mmap_size=250000;
+    DROP TABLE t2;
+    SELECT name FROM sqlite_master WHERE type='table' ORDER BY 1;
+    PRAGMA quick_check;
+    PRAGMA mmap_size;
+  }
+} {250000 nums t1 ok 250000}
+do_test mmap3-1.4 {
+  db eval {SELECT x FROM t1 WHERE +x BETWEEN 10 AND 15} {
+    db eval {PRAGMA mmap_size=150000}
+  }
+  db eval {
+    PRAGMA quick_check;
+    PRAGMA mmap_size;
+  }
+} {ok 250000}
+do_test mmap3-1.5 {
+  db eval {SELECT x FROM t1 WHERE +x BETWEEN 10 AND 15} {
+    db eval {PRAGMA mmap_size=0}
+  }
+  db eval {
+    PRAGMA quick_check;
+    PRAGMA mmap_size;
+  }
+} {ok 250000}
+do_test mmap3-1.6 {
+  db eval {SELECT x FROM t1 WHERE +x BETWEEN 10 AND 15} {
+    set x [db one {PRAGMA mmap_size}]
+  }
+  set x [concat $x [db eval {
+    PRAGMA quick_check;
+    PRAGMA mmap_size;
+  }]]
+} {250000 ok 250000}
+do_test mmap3-1.7 {
+  db eval {
+    PRAGMA mmap_size(0);
+    CREATE TABLE t3(a,b,c);
+    SELECT name FROM sqlite_master WHERE type='table' ORDER BY 1;
+    PRAGMA quick_check;
+    PRAGMA mmap_size;
+  }
+} {0 nums t1 t3 ok 0}
+do_test mmap3-1.8 {
+  db eval {SELECT x FROM t1 WHERE +x BETWEEN 10 AND 15} {
+    db eval {PRAGMA mmap_size=75000}
+  }
+  db eval {
+    PRAGMA quick_check;
+    PRAGMA mmap_size;
+  }
+} {ok 75000}
+
+finish_test
diff --git a/test/mmap4.test b/test/mmap4.test
new file mode 100644
index 0000000000000000000000000000000000000000..97015489cc182ff8e465284badca8ed6db5bcc36
--- /dev/null
+++ b/test/mmap4.test
@@ -0,0 +1,104 @@
+# 2016 February 04
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file tests the effect of the mmap() or mremap() system calls 
+# returning an error on the library. 
+#
+# If either mmap() or mremap() fails, SQLite should log an error 
+# message, then continue accessing the database using read() and 
+# write() exclusively.
+# 
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable !mmap {
+  finish_test
+  return
+}
+source $testdir/lock_common.tcl
+set testprefix mmap4
+
+# Return a Tcl script that registers a user-defined scalar function 
+# named rblob() with database handle $dbname. The function returns a
+# sequence of pseudo-random blobs based on seed value $seed.
+#
+proc register_rblob_code {dbname seed} {
+  return [subst -nocommands {
+    set ::rcnt $seed
+    proc rblob {n} {
+      set ::rcnt [expr (([set ::rcnt] << 3) + [set ::rcnt] + 456) & 0xFFFFFFFF]
+      set str [format %.8x [expr [set ::rcnt] ^ 0xbdf20da3]]
+      string range [string repeat [set str] [expr [set n]/4]] 1 [set n]
+    }
+    $dbname func rblob rblob
+  }]
+}
+
+#-------------------------------------------------------------------------
+# Test various mmap_size settings.
+#
+foreach {tn1 mmap1 mmap2} {
+     1 6144       167773
+     2 18432      140399
+     3 43008      401302
+     4 92160      253899
+     5 190464          2
+     6 387072     752431
+     7 780288     291143
+     8 1566720    594306
+     9 3139584    829137
+     10 6285312   793963
+     11 12576768 1015590
+} {
+  do_multiclient_test tn {
+    sql1 {
+      CREATE TABLE t1(a PRIMARY KEY);
+      CREATE TABLE t2(x);
+      INSERT INTO t2 VALUES('');
+    }
+
+    code1 [register_rblob_code db  0]
+    code2 [register_rblob_code db2 444]
+
+    sql1 "PRAGMA mmap_size = $mmap1"
+    sql2 "PRAGMA mmap_size = $mmap2"
+
+    do_test $tn1.$tn {
+      for {set i 1} {$i <= 100} {incr i} {
+        if {$i % 2} {
+          set c1 sql1
+            set c2 sql2
+        } else {
+          set c1 sql2
+            set c2 sql1
+        }
+
+        $c1 {
+          INSERT INTO t1 VALUES( rblob(5000) );
+          UPDATE t2 SET x = (SELECT md5sum(a) FROM t1);
+        }
+
+        set res [$c2 {
+            SELECT count(*) FROM t1;
+            SELECT x == (SELECT md5sum(a) FROM t1) FROM t2;
+            PRAGMA integrity_check;
+        }]
+        if {$res != [list $i 1 ok]} {
+          do_test $tn1.$tn.$i {
+            set ::res
+          } [list $i 1 ok]
+        }
+      }
+      set res 1
+    } {1}
+  }
+}
+
+finish_test
diff --git a/test/mmapcorrupt.test b/test/mmapcorrupt.test
new file mode 100644
index 0000000000000000000000000000000000000000..d434ec18361e209ce9c12d4c11cba7bcc9cbbacf
--- /dev/null
+++ b/test/mmapcorrupt.test
@@ -0,0 +1,55 @@
+# 2024 January 23
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test special cases of corrupt database handling in mmap-mode.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix mmapcorrupt
+
+ifcapable !mmap {
+  finish_test
+  return
+}
+database_may_be_corrupt
+
+db close
+sqlite3_shutdown
+sqlite3_config_lookaside 0 0
+sqlite3_initialize
+
+reset_db
+do_execsql_test 1.0 {
+  PRAGMA page_size = 16384;
+  CREATE TABLE tn1(a PRIMARY KEY) WITHOUT ROWID;
+  CREATE TABLE t0(a PRIMARY KEY) WITHOUT ROWID;
+  CREATE TABLE t1(a PRIMARY KEY) WITHOUT ROWID;
+  INSERT INTO t1 VALUES('B');
+}
+db close
+
+set sz [file size test.db]
+hexio_write test.db [expr $sz-3] 800380
+
+sqlite3 db test.db
+do_execsql_test 2.1 {
+  PRAGMA mmap_size = 1000000;
+  SELECT sql FROM sqlite_schema LIMIT 1;
+  SELECT * FROM t0;
+} {1000000 {CREATE TABLE tn1(a PRIMARY KEY) WITHOUT ROWID}}
+
+do_execsql_test 2.2 {
+  INSERT INTO t0 SELECT * FROM t1;
+}
+
+finish_test
+
diff --git a/test/mmapfault.test b/test/mmapfault.test
new file mode 100644
index 0000000000000000000000000000000000000000..10c5e258b80862894ea95fa9ff4cdca7e23e76b4
--- /dev/null
+++ b/test/mmapfault.test
@@ -0,0 +1,76 @@
+# 2013-05-23
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+ifcapable !mmap {
+  finish_test
+  return
+}
+set testprefix mmapfault
+
+set a_string_counter 1
+proc a_string {n} {
+  global a_string_counter
+  incr a_string_counter
+  string range [string repeat "${a_string_counter}." $n] 1 $n
+}
+db func a_string a_string
+
+do_test 1-pre {
+  execsql {
+    CREATE TABLE t1(a UNIQUE, b UNIQUE);
+    INSERT INTO t1 VALUES(a_string(200), a_string(300));
+    INSERT INTO t1 SELECT a_string(200), a_string(300) FROM t1;
+    INSERT INTO t1 SELECT a_string(200), a_string(300) FROM t1;
+  }
+  faultsim_save_and_close
+} {}
+
+
+do_faultsim_test 1 -prep {
+  faultsim_restore_and_reopen
+  db func a_string a_string
+  execsql {
+    PRAGMA mmap_size = 1000000;
+    PRAGMA cache_size = 5;
+    BEGIN;
+      INSERT INTO t1 SELECT a_string(200), a_string(300) FROM t1;
+      INSERT INTO t1 SELECT a_string(200), a_string(300) FROM t1;
+      INSERT INTO t1 SELECT a_string(200), a_string(300) FROM t1;
+      INSERT INTO t1 SELECT a_string(200), a_string(300) FROM t1;
+  }
+} -body {
+  execsql { INSERT INTO t1 VALUES(a_string(200), a_string(300)) }
+} -test {
+  faultsim_test_result {0 {}} 
+
+  if {[sqlite3_get_autocommit db]} {
+    sqlite3 db2 test.db
+    set nRow [db2 one {SELECT count(*) FROM t1}]
+    if {$nRow!=4} { error "Database content appears incorrect (1)" }
+    db2 close
+  }
+
+  execsql { INSERT INTO t1 VALUES(a_string(201), a_string(301)) }
+  set nRow [db one {SELECT count(*) FROM t1}]
+  if {$nRow!=5 && $nRow!=66 && $nRow!=65} { 
+    error "Database content appears incorrect (2) ($nRow)" 
+  }
+
+  catch { execsql COMMIT }
+}
+
+
+
+finish_test
diff --git a/test/mmapwarm.test b/test/mmapwarm.test
new file mode 100644
index 0000000000000000000000000000000000000000..b077047ebcd4d7b67b83a0f81870dddc7a5ba592
--- /dev/null
+++ b/test/mmapwarm.test
@@ -0,0 +1,81 @@
+# 20 September 18
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+
+if 0 {
+  db close
+  sqlite3_shutdown
+  proc msg {args} { puts $args }
+  test_sqlite3_log msg
+  sqlite3 db test.db
+}
+
+set testprefix mmapwarm
+
+
+do_execsql_test 1.0 {
+  PRAGMA auto_vacuum = 0;
+  CREATE TABLE t1(x, y);
+  WITH s(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<500
+  )
+  INSERT INTO t1 SELECT randomblob(400), randomblob(500) FROM s;
+  PRAGMA page_count;
+} {507}
+db close
+
+do_test 1.1 {
+  sqlite3 db test.db
+  db eval {PRAGMA mmap_size = 1000000}
+  sqlite3_mmap_warm db
+} {SQLITE_OK}
+
+do_test 1.2 {
+  db close
+  sqlite3 db test.db
+  db eval {PRAGMA mmap_size = 1000000}
+  sqlite3_mmap_warm db "main"
+} {SQLITE_OK}
+
+do_test 1.3 {
+  sqlite3 db test.db
+  sqlite3_mmap_warm db
+} {SQLITE_OK}
+
+do_test 1.4 {
+  db close
+  sqlite3 db test.db
+  sqlite3_mmap_warm db "main"
+} {SQLITE_OK}
+
+do_test 2.0 {
+  db close
+  sqlite3 db test.db
+  db eval BEGIN
+  sqlite3_mmap_warm db "main"
+} {SQLITE_MISUSE}
+
+do_faultsim_test 3 -faults oom* -prep {
+  sqlite3 db test.db
+  sqlite3_db_config_lookaside db 0 0 0
+  db eval { PRAGMA mmap_size = 1000000 }
+  db eval { SELECT * FROM sqlite_master }
+} -body {
+  sqlite3_mmap_warm db "main"
+} -test {
+  faultsim_test_result {0 SQLITE_OK} {0 SQLITE_NOMEM}
+}
+ 
+finish_test
diff --git a/test/multiplex.test b/test/multiplex.test
new file mode 100644
index 0000000000000000000000000000000000000000..2f1a02fb876c68c46428052ca4c3406528357286
--- /dev/null
+++ b/test/multiplex.test
@@ -0,0 +1,615 @@
+# 2010 October 29
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+
+# The tests in this file assume that SQLite is compiled without
+# ENABLE_8_3_NAMES.
+#
+ifcapable 8_3_names {
+  puts -nonewline "SQLite compiled with SQLITE_ENABLE_8_3_NAMES. "
+  puts            "Skipping tests multiplex-*."
+  finish_test
+  return
+}
+
+set g_chunk_size [ expr ($::SQLITE_MAX_PAGE_SIZE*16384) ]
+set g_max_chunks 32
+
+# This handles appending the chunk number
+# to the end of the filename.  if 
+# SQLITE_MULTIPLEX_EXT_OVWR is defined, then
+# it overwrites the last 2 bytes of the 
+# file name with the chunk number.
+proc multiplex_name {name chunk} {
+  if {$chunk==0} { return $name }
+  set num [format "%03d" $chunk]
+  ifcapable {multiplex_ext_overwrite} {
+    set name [string range $name 0 [expr [string length $name]-2-1]]
+  }
+  return $name$num
+}
+
+# This saves off the parameters and calls the 
+# underlying sqlite3_multiplex_control() API.
+proc multiplex_set {db name chunk_size max_chunks} {
+  global g_chunk_size
+  global g_max_chunks
+  set g_chunk_size [ expr (($chunk_size+($::SQLITE_MAX_PAGE_SIZE-1)) & ~($::SQLITE_MAX_PAGE_SIZE-1)) ]
+  set g_max_chunks $max_chunks
+  set rc [catch {sqlite3_multiplex_control $db $name chunk_size $chunk_size} msg]
+  if { $rc==0 } { 
+    set rc [catch {sqlite3_multiplex_control $db $name max_chunks $max_chunks} msg]
+  }
+  list $msg
+}
+
+# This attempts to delete the base file and 
+# and files with the chunk extension.
+proc multiplex_delete {name} {
+  global g_max_chunks
+  forcedelete $name
+  for {set i 0} {$i<$g_max_chunks} {incr i} {
+    forcedelete [multiplex_name $name $i]
+    forcedelete [multiplex_name $name-journal $i]
+    forcedelete [multiplex_name $name-wal $i]
+  }
+}
+
+db close
+sqlite3_shutdown
+test_sqlite3_log xLog
+proc xLog {error_code msg} {
+  lappend ::log $error_code $msg 
+}
+unset -nocomplain log
+
+multiplex_delete test.db
+multiplex_delete test2.db
+
+#-------------------------------------------------------------------------
+#   multiplex-1.1.*: Test initialize and shutdown.
+
+do_test multiplex-1.1 { sqlite3_multiplex_initialize nosuchvfs 1 } {SQLITE_ERROR}
+do_test multiplex-1.2 { sqlite3_multiplex_initialize "" 1 }        {SQLITE_OK}
+do_test multiplex-1.3 { sqlite3_multiplex_initialize "" 1 }        {SQLITE_MISUSE}
+do_test multiplex-1.4 { sqlite3_multiplex_shutdown }               {SQLITE_OK}
+
+do_test multiplex-1.5 { sqlite3_multiplex_initialize "" 0 }        {SQLITE_OK}
+do_test multiplex-1.6 { sqlite3_multiplex_shutdown }               {SQLITE_OK}
+do_test multiplex-1.7 { sqlite3_multiplex_initialize "" 1 }        {SQLITE_OK}
+do_test multiplex-1.8 { sqlite3_multiplex_shutdown }               {SQLITE_OK}
+
+
+do_test multiplex-1.9.1  { sqlite3_multiplex_initialize "" 1 }     {SQLITE_OK}
+do_test multiplex-1.9.2  { sqlite3 db test.db }                    {}
+do_test multiplex-1.9.3  { multiplex_set db main 32768 16 }        {SQLITE_OK}
+do_test multiplex-1.9.4  { multiplex_set db main 32768 -1 }        {SQLITE_OK}
+do_test multiplex-1.9.6  { multiplex_set db main 31 16 }           {SQLITE_OK}
+do_test multiplex-1.9.7  { multiplex_set db main 32768 100 }       {SQLITE_OK}
+do_test multiplex-1.9.8  { multiplex_set db main 1073741824 1 }    {SQLITE_OK}
+do_test multiplex-1.9.9  { db close }                              {}
+do_test multiplex-1.9.10 { sqlite3_multiplex_shutdown }            {SQLITE_OK}
+
+do_test multiplex-1.10.1  { sqlite3_multiplex_initialize "" 1 }                                  {SQLITE_OK}
+do_test multiplex-1.10.2  { sqlite3 db test.db }                                                 {}
+do_test multiplex-1.10.3  { lindex [ catchsql { SELECT multiplex_control(2, 32768); } ] 0 }      {0}
+do_test multiplex-1.10.4  { lindex [ catchsql { SELECT multiplex_control(3, -1); } ] 0 }         {0}
+do_test multiplex-1.10.6  { lindex [ catchsql { SELECT multiplex_control(2, 31); } ] 0 }         {0}
+do_test multiplex-1.10.7  { lindex [ catchsql { SELECT multiplex_control(3, 100); } ] 0 }        {0}
+do_test multiplex-1.10.8  { lindex [ catchsql { SELECT multiplex_control(2, 1073741824); } ] 0 } {0}
+do_test multiplex-1.10.9  { db close }                                                           {}
+do_test multiplex-1.10.10 { sqlite3_multiplex_shutdown }                                         {SQLITE_OK}
+
+do_test multiplex-1.11.1  { sqlite3_multiplex_initialize "" 1 }               {SQLITE_OK}
+do_test multiplex-1.11.2  { sqlite3 db test.db }                              {}
+do_test multiplex-1.11.3  { sqlite3_multiplex_control db main enable 0  }     {SQLITE_OK}
+do_test multiplex-1.11.4  { sqlite3_multiplex_control db main enable 1  }     {SQLITE_OK}
+do_test multiplex-1.11.5  { sqlite3_multiplex_control db main enable -1 }     {SQLITE_OK}
+do_test multiplex-1.11.6  { db close }                                        {}
+do_test multiplex-1.11.7  { sqlite3_multiplex_shutdown }                      {SQLITE_OK}
+
+do_test multiplex-1.12.1  { sqlite3_multiplex_initialize "" 1 }                           {SQLITE_OK}
+do_test multiplex-1.12.2  { sqlite3 db test.db }                                          {}
+do_test multiplex-1.12.3  { lindex [ catchsql { SELECT multiplex_control(1, 0); } ] 0 }   {0}
+do_test multiplex-1.12.4  { lindex [ catchsql { SELECT multiplex_control(1, 1); } ] 0 }   {0}
+do_test multiplex-1.12.5  { lindex [ catchsql { SELECT multiplex_control(1, -1); } ] 0 }  {0}
+do_test multiplex-1.12.6  { db close }                                                    {}
+do_test multiplex-1.12.7  { sqlite3_multiplex_shutdown }                                  {SQLITE_OK}
+
+do_test multiplex-1.13.1  { sqlite3_multiplex_initialize "" 1 }                           {SQLITE_OK}
+do_test multiplex-1.13.2  { sqlite3 db test.db }                                          {}
+do_test multiplex-1.13.3  { lindex [ catchsql { SELECT multiplex_control(-1, 0); } ] 0 }  {1}
+do_test multiplex-1.13.4  { lindex [ catchsql { SELECT multiplex_control(4, 1); } ] 0 }   {1}
+do_test multiplex-1.13.6  { db close }                                                    {}
+do_test multiplex-1.13.7  { sqlite3_multiplex_shutdown }                                  {SQLITE_OK}
+
+#-------------------------------------------------------------------------
+# Some simple warm-body tests with a single database file in rollback 
+# mode:
+#
+#   multiplex-2.1.*: Test simple writing to a multiplex file.
+#
+#   multiplex-2.2.*: More writing.
+#
+#   multiplex-2.3.*: Open and close a second db.
+#
+#   multiplex-2.4.*: Try to shutdown the multiplex system before closing the db
+#                file. Check that this fails and the multiplex system still works
+#                afterwards. Then close the database and successfully shut
+#                down the multiplex system.
+#
+#   multiplex-2.5.*: More reading/writing.
+#
+#   multiplex-2.6.*: More reading/writing with varying small chunk sizes, as
+#                well as varying journal mode.
+#
+#   multiplex-2.7.*: Disable/enable tests.
+#
+
+sqlite3_multiplex_initialize "" 1
+multiplex_set db main 32768 16
+
+forcedelete test.x
+foreach f [glob -nocomplain {test.x*[0-9][0-9][0-9]}] {
+  forcedelete $f
+}
+do_test multiplex-2.1.2 {
+  sqlite3 db test.x
+  execsql {
+    PRAGMA page_size=1024;
+    PRAGMA auto_vacuum=OFF;
+    PRAGMA journal_mode=DELETE;
+  }
+  execsql {
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, randomblob(1100));
+    INSERT INTO t1 VALUES(2, randomblob(1100));
+  }
+} {}
+do_test multiplex-2.1.3 { file size [multiplex_name test.x 0] } {4096}
+do_test multiplex-2.1.4 {
+  execsql { INSERT INTO t1 VALUES(3, randomblob(1100)) }
+} {}
+do_execsql_test multiplex-2.1.5 {
+  PRAGMA multiplex_enabled;
+  PRAGMA multiplex_filecount;
+  PRAGMA multiplex_chunksize;
+} {1 1 2147418112}
+
+do_test multiplex-2.2.1 {
+  execsql { INSERT INTO t1 VALUES(3, randomblob(1100)) }
+} {}
+do_test multiplex-2.2.3 { file size [multiplex_name test.x 0] } {6144}
+
+do_test multiplex-2.3.1 {
+  sqlite3 db2 test2.x
+  db2 close
+} {}
+
+
+unset -nocomplain ::log
+#do_test multiplex-2.4.1 {
+#  sqlite3_multiplex_shutdown
+#} {SQLITE_MISUSE}
+do_test multiplex-2.4.2 {
+  execsql { INSERT INTO t1 VALUES(3, randomblob(1100)) }
+} {}
+#do_test multiplex-2.4.3 {
+#  set ::log
+#} {SQLITE_MISUSE {sqlite3_multiplex_shutdown() called while database connections are still open}}
+
+do_test multiplex-2.4.4 { file size [multiplex_name test.x 0] } {7168}
+do_test multiplex-2.4.5 {
+  db close
+  sqlite3 db test.x
+  db eval vacuum
+  db close
+  glob test.x*
+} {test.x}
+do_test multiplex-2.4.99 {
+  sqlite3_multiplex_shutdown
+} {SQLITE_OK}
+
+do_test multiplex-2.5.1 {
+  multiplex_delete test.x
+  sqlite3_multiplex_initialize "" 1
+  sqlite3 db test.x
+  multiplex_set db main 4096 16
+} {SQLITE_OK}
+
+do_test multiplex-2.5.2 {
+  execsql {
+    PRAGMA page_size = 1024;
+    PRAGMA journal_mode = delete;
+    PRAGMA auto_vacuum = off;
+    CREATE TABLE t1(a PRIMARY KEY, b);
+  }
+} {delete}
+
+do_test multiplex-2.5.3 { 
+  execsql { 
+    INSERT INTO t1 VALUES(1, 'one');
+    INSERT INTO t1 VALUES(2, randomblob(4000));
+    INSERT INTO t1 VALUES(3, 'three');
+    INSERT INTO t1 VALUES(4, randomblob(4000));
+    INSERT INTO t1 VALUES(5, 'five');
+    INSERT INTO t1 VALUES(6, randomblob($g_chunk_size));
+    INSERT INTO t1 VALUES(7, randomblob($g_chunk_size));
+  }
+} {}
+
+do_test multiplex-2.5.4 {
+  db eval {SELECT * FROM t1 WHERE a=1}
+} {1 one}
+
+do_test multiplex-2.5.5 {
+  db eval {SELECT * FROM t1 WHERE a=3}
+} {3 three}
+
+do_test multiplex-2.5.6 {
+  db eval {SELECT * FROM t1 WHERE a=5}
+} {5 five}
+
+do_test multiplex-2.5.7 {
+  db eval {SELECT a,length(b) FROM t1 WHERE a=2}
+} {2 4000}
+
+do_test multiplex-2.5.8 {
+  db eval {SELECT a,length(b) FROM t1 WHERE a=4}
+} {4 4000}
+
+do_test multiplex-2.5.9 { file size [multiplex_name test.x 0] } [list $g_chunk_size]
+do_test multiplex-2.5.10 { file size [multiplex_name test.x 1] } [list $g_chunk_size]
+do_execsql_test multiplex-2.5.11 {
+  PRAGMA multiplex_enabled;
+  PRAGMA multiplex_filecount;
+  PRAGMA multiplex_chunksize;
+} {1 3 65536}
+sqlite3 db test.x
+do_execsql_test multiplex-2.5.12 {
+  PRAGMA multiplex_filecount;
+  PRAGMA multiplex_chunksize;
+} {3 65536}
+
+
+
+do_test multiplex-2.5.99 {
+  db close
+  sqlite3_multiplex_shutdown
+} {SQLITE_OK}
+
+
+set all_journal_modes {delete persist truncate memory off}
+foreach jmode $all_journal_modes {
+  for {set sz 151} {$sz<8000} {set sz [expr $sz+419]} {
+
+    do_test multiplex-2.6.1.$sz.$jmode {
+      multiplex_delete test.db
+      sqlite3_multiplex_initialize "" 1
+      sqlite3 db test.db
+      multiplex_set db main $sz 32
+    } {SQLITE_OK}
+
+    do_test multiplex-2.6.2.$sz.$jmode {
+      db eval {
+        PRAGMA page_size = 1024;
+        PRAGMA auto_vacuum = off;
+      }
+      db eval "PRAGMA journal_mode = $jmode;"
+    } $jmode
+
+    do_test multiplex-2.6.3.$sz.$jmode { 
+      execsql { 
+        CREATE TABLE t1(a PRIMARY KEY, b);
+        INSERT INTO t1 VALUES(1, 'one');
+        INSERT INTO t1 VALUES(2, randomblob($g_chunk_size));
+      }
+    } {}
+
+    do_test multiplex-2.6.4.$sz.$jmode {
+      db eval {SELECT b FROM t1 WHERE a=1}
+    } {one}
+
+    do_test multiplex-2.6.5.$sz.$jmode {
+      db eval {SELECT length(b) FROM t1 WHERE a=2}
+    } [list $g_chunk_size]
+
+    do_test multiplex-2.6.6.$sz.$jmode { file size [multiplex_name test.db 0] } [list $g_chunk_size]
+
+    do_test multiplex-2.6.99.$sz.$jmode {
+      db close
+      sqlite3_multiplex_shutdown
+    } {SQLITE_OK}
+
+  }
+}
+
+do_test multiplex-2.7.1  { multiplex_delete test.db }                                       {}
+do_test multiplex-2.7.2  { sqlite3_multiplex_initialize "" 1 }                              {SQLITE_OK}
+do_test multiplex-2.7.3  { sqlite3 db test.db }                                             {}
+do_test multiplex-2.7.4  { lindex [ catchsql { SELECT multiplex_control(2, 65536); } ] 0 }  {0}
+do_test multiplex-2.7.5  { lindex [ catchsql { SELECT multiplex_control(1, 0); } ] 0 }      {0}
+do_test multiplex-2.7.6 { 
+  execsql { 
+    CREATE TABLE t1(a PRIMARY KEY, b);
+    INSERT INTO t1 VALUES(1, randomblob(1000));
+  }
+} {}
+# verify only one file, and file size is less than chunks size
+do_test multiplex-2.7.7  { expr ([file size [multiplex_name test.db 0]] < 65536) } {1}
+do_test multiplex-2.7.8  { file exists [multiplex_name test.db 1] }                {0}
+do_test multiplex-2.7.9 { 
+  execsql { 
+    INSERT INTO t1 VALUES(2, randomblob(65536));
+  }
+} {}
+# verify only one file, and file size exceeds chunks size
+do_test multiplex-2.7.10 { expr ([file size [multiplex_name test.db 0]] > 65536) } {1}
+do_test multiplex-2.7.11 { file exists [multiplex_name test.db 1] }                {0}
+do_test multiplex-2.7.12 { db close }                                              {}
+do_test multiplex-2.7.13 { sqlite3_multiplex_shutdown }                            {SQLITE_OK}
+
+#-------------------------------------------------------------------------
+# Try some tests with more than one connection to a database file. Still
+# in rollback mode.
+#
+#   multiplex-3.1.*: Two connections to a single database file.
+#
+#   multiplex-3.2.*: Two connections to each of several database files (that
+#                are in the same multiplex group).
+#
+do_test multiplex-3.1.1 {
+  multiplex_delete test.db
+  sqlite3_multiplex_initialize "" 1
+  sqlite3 db test.db
+  multiplex_set db main 32768 16
+} {SQLITE_OK}
+do_test multiplex-3.1.2 {
+  execsql {
+    PRAGMA page_size = 1024;
+    PRAGMA journal_mode = delete;
+    PRAGMA auto_vacuum = off;
+    CREATE TABLE t1(a PRIMARY KEY, b);
+    INSERT INTO t1 VALUES(1, 'one');
+  }
+  file size [multiplex_name test.db 0]
+} {3072}
+do_test multiplex-3.1.3 {
+  sqlite3 db2 test.db
+  execsql { CREATE TABLE t2(a, b) } db2
+} {}
+do_test multiplex-3.1.4 {
+  execsql { CREATE TABLE t3(a, b) }
+} {}
+do_test multiplex-3.1.5 {
+  catchsql { CREATE TABLE t3(a, b) }
+} {1 {table t3 already exists}}
+do_test multiplex-3.1.6 {
+  db close
+  db2 close
+} {}
+
+do_test multiplex-3.2.1a {
+
+  multiplex_delete test.db
+  multiplex_delete test2.db
+
+  sqlite3 db1a test.db
+  sqlite3 db2a test2.db
+
+  foreach db {db1a db2a} {
+    execsql {
+      PRAGMA page_size = 1024;
+      PRAGMA journal_mode = delete;
+      PRAGMA auto_vacuum = off;
+      CREATE TABLE t1(a, b);
+    } $db
+  }
+
+  list [file size [multiplex_name test.db 0]] [file size [multiplex_name test2.db 0]]
+} {2048 2048}
+
+do_test multiplex-3.2.1b {
+  sqlite3 db1b test.db
+  sqlite3 db2b test2.db
+} {}
+
+do_test multiplex-3.2.2 { execsql { INSERT INTO t1 VALUES('x', 'y') } db1a } {}
+do_test multiplex-3.2.3 { execsql { INSERT INTO t1 VALUES('v', 'w') } db1b } {}
+do_test multiplex-3.2.4 { execsql { INSERT INTO t1 VALUES('t', 'u') } db2a } {}
+do_test multiplex-3.2.5 { execsql { INSERT INTO t1 VALUES('r', 's') } db2b } {}
+
+do_test multiplex-3.2.6 { 
+  execsql { INSERT INTO t1 VALUES(randomblob(500), randomblob(500)) } db1a
+} {}
+do_test multiplex-3.2.7 { 
+  execsql { INSERT INTO t1 VALUES(randomblob(500), randomblob(500)) } db1b
+} {}
+do_test multiplex-3.2.8 { 
+  execsql { INSERT INTO t1 VALUES(randomblob(500), randomblob(500)) } db2a
+} {}
+do_test multiplex-3.2.9 { 
+  execsql { INSERT INTO t1 VALUES(randomblob(500), randomblob(500)) } db2b
+} {}
+
+do_test multiplex-3.3.1 { 
+  execsql { INSERT INTO t1 VALUES(randomblob(500), randomblob(500)) } db1a
+  execsql { INSERT INTO t1 VALUES(randomblob(500), randomblob(500)) } db1b
+  execsql { INSERT INTO t1 VALUES(randomblob(500), randomblob(500)) } db2a
+  execsql { INSERT INTO t1 VALUES(randomblob(500), randomblob(500)) } db2b
+} {}
+
+do_test multiplex-3.2.X {
+  foreach db {db1a db2a db2b db1b} { catch { $db close } }
+} {}
+
+#-------------------------------------------------------------------------
+#
+
+sqlite3_multiplex_initialize "" 1
+multiplex_set db main 32768 16
+
+# Return a list of all currently defined multiplexs.
+proc multiplex_list {} {
+  glob -nocomplain test2.db*
+}
+
+do_test multiplex-4.1.6 {
+  multiplex_delete test2.db
+  sqlite3 db test2.db
+  db eval {CREATE TABLE t2(x); INSERT INTO t2 VALUES('tab-t2');}
+  set res [multiplex_list]
+  list [regexp {test2.db} $res]
+} {1}
+do_test multiplex-4.1.6a {
+  sqlite3 db2 test2.db
+  db2 eval {SELECT * FROM t2}
+} {tab-t2}
+do_test multiplex-4.1.7 {
+  execsql {INSERT INTO t2 VALUES(zeroblob(200000))}
+} {}
+do_test multiplex-4.1.8 {
+  sqlite3 db2 test2.db
+  db2 eval {SELECT count(*) FROM t2}
+} {2}
+do_test multiplex-4.1.8a {
+   db2 eval { DELETE FROM t2 WHERE x = 'tab-t2' }
+} {}
+do_test multiplex-4.1.8b {
+  sqlite3 db2 test2.db
+  db2 eval {SELECT count(*) FROM t2}
+} {1}
+
+
+do_test multiplex-4.1.9 {
+  execsql {INSERT INTO t2 VALUES(zeroblob(200000))}
+} {}
+do_test multiplex-4.1.10 {
+  set res [multiplex_list]
+  list [regexp {test2.db} $res]
+} {1}
+do_test multiplex-4.1.11 {
+  db2 close
+  set res [multiplex_list]
+  list [regexp {test2.db} $res]
+} {1}
+do_test multiplex-4.1.12 {
+  db close
+  multiplex_list
+} {test2.db}
+
+
+#-------------------------------------------------------------------------
+# The following tests test that the multiplex VFS handles malloc and IO 
+# errors.
+#
+
+sqlite3_multiplex_initialize "" 1
+multiplex_set db main 32768 16
+
+do_faultsim_test multiplex-5.1 -prep {
+  catch {db close}
+} -body {
+  sqlite3 db test2.db
+}
+do_faultsim_test multiplex-5.2 -prep {
+  catch {db close}
+} -body {
+  sqlite3 db test.db
+}
+
+catch { db close }
+multiplex_delete test.db
+multiplex_delete test2.db
+
+do_test multiplex-5.3.prep {
+  sqlite3 db test.db
+  execsql {
+    PRAGMA auto_vacuum = 1;
+    PRAGMA page_size = 1024;
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(10, zeroblob(1200));
+  }
+  faultsim_save_and_close
+} {}
+do_faultsim_test multiplex-5.3 -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { DELETE FROM t1 }
+}
+
+do_test multiplex-5.4.1 {
+  catch { db close }
+  multiplex_delete test.db
+  file mkdir test.db
+  list [catch { sqlite3 db test.db } msg] $msg
+} {1 {unable to open database file}}
+catch { delete_file test.db }
+
+do_faultsim_test multiplex-5.5 -prep {
+  catch { sqlite3_multiplex_shutdown }
+} -body {
+  sqlite3_multiplex_initialize "" 1
+  multiplex_set db main 32768 16
+}
+
+#-------------------------------------------------------------------------
+# Test that you can vacuum a multiplex'ed DB.  
+
+ifcapable vacuum {
+
+sqlite3_multiplex_shutdown
+do_test multiplex-6.0.0 {
+  multiplex_delete test.db
+  multiplex_delete test.x
+  sqlite3_multiplex_initialize "" 1
+  sqlite3 db test.x
+  multiplex_set db main 4096 16
+} {SQLITE_OK}
+
+do_test multiplex-6.1.0 {
+  execsql {
+    PRAGMA page_size=1024;
+    PRAGMA journal_mode=DELETE;
+    PRAGMA auto_vacuum=OFF;
+  }
+  execsql {
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, randomblob($g_chunk_size));
+    INSERT INTO t1 VALUES(2, randomblob($g_chunk_size));
+  }
+} {}
+do_test multiplex-6.2.1 { file size [multiplex_name test.x 0] } [list $g_chunk_size]
+do_test multiplex-6.2.2 { file size [multiplex_name test.x 1] } [list $g_chunk_size]
+
+do_test multiplex-6.3.0 {
+  execsql { VACUUM }
+} {}
+
+do_test multiplex-6.99 {
+  db close
+  multiplex_delete test.x
+  sqlite3_multiplex_shutdown
+} {SQLITE_OK}
+
+}
+
+
+catch { db close }
+catch { sqlite3_multiplex_shutdown }
+sqlite3_shutdown
+test_sqlite3_log 
+sqlite3_initialize
+finish_test
diff --git a/test/multiplex2.test b/test/multiplex2.test
new file mode 100644
index 0000000000000000000000000000000000000000..bdfc05b82f6379cb5c483685ce852a09ff64ed58
--- /dev/null
+++ b/test/multiplex2.test
@@ -0,0 +1,70 @@
+# 2010 October 29
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+source $testdir/lock_common.tcl
+
+
+do_multiclient_test tn {
+  code1 { catch { sqlite3_multiplex_initialize "" 0 } }
+  code2 { catch { sqlite3_multiplex_initialize "" 0 } }
+
+  code1 { db close }
+  code2 { db2 close }
+
+  code1 { sqlite3 db test.db -vfs multiplex }
+  code2 { sqlite3 db2 test.db -vfs multiplex }
+
+  code1 { sqlite3_multiplex_control db main chunk_size [expr 1024*1024] }
+  code2 { sqlite3_multiplex_control db2 main chunk_size [expr 1024*1024] }
+
+  sql1 {
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(randomblob(10), randomblob(4000));          --    1
+    INSERT INTO t1 SELECT randomblob(10), randomblob(4000) FROM t1;   --    2
+    INSERT INTO t1 SELECT randomblob(10), randomblob(4000) FROM t1;   --    4
+    INSERT INTO t1 SELECT randomblob(10), randomblob(4000) FROM t1;   --    8
+    INSERT INTO t1 SELECT randomblob(10), randomblob(4000) FROM t1;   --   16
+    INSERT INTO t1 SELECT randomblob(10), randomblob(4000) FROM t1;   --   32
+    INSERT INTO t1 SELECT randomblob(10), randomblob(4000) FROM t1;   --   64
+    INSERT INTO t1 SELECT randomblob(10), randomblob(4000) FROM t1;   --  128
+    INSERT INTO t1 SELECT randomblob(10), randomblob(4000) FROM t1;   --  256
+    INSERT INTO t1 SELECT randomblob(10), randomblob(4000) FROM t1;   --  512
+    SELECT count(*) FROM t1;
+  } 
+
+  do_test multiplex-1.$tn.1 { sql1 { SELECT count(*) FROM t1 } } 512
+  do_test multiplex-1.$tn.2 { sql2 { SELECT count(*) FROM t1 } } 512
+  sql2 { DELETE FROM t1 ; VACUUM }
+  do_test multiplex-1.$tn.3 { sql1 { SELECT count(*) FROM t1 } } 0
+
+  sql1 {
+    INSERT INTO t1 VALUES(randomblob(10), randomblob(4000));          --    1
+    INSERT INTO t1 SELECT randomblob(10), randomblob(4000) FROM t1;   --    2
+    INSERT INTO t1 SELECT randomblob(10), randomblob(4000) FROM t1;   --    4
+    INSERT INTO t1 SELECT randomblob(10), randomblob(4000) FROM t1;   --    8
+    INSERT INTO t1 SELECT randomblob(10), randomblob(4000) FROM t1;   --   16
+    INSERT INTO t1 SELECT randomblob(10), randomblob(4000) FROM t1;   --   32
+    INSERT INTO t1 SELECT randomblob(10), randomblob(4000) FROM t1;   --   64
+    INSERT INTO t1 SELECT randomblob(10), randomblob(4000) FROM t1;   --  128
+    INSERT INTO t1 SELECT randomblob(10), randomblob(4000) FROM t1;   --  256
+    INSERT INTO t1 SELECT randomblob(10), randomblob(4000) FROM t1;   --  512
+    SELECT count(*) FROM t1;
+  }
+
+  do_test multiplex-1.$tn.4 { sql2 { SELECT count(*) FROM t1 } } 512
+}
+
+catch { sqlite3_multiplex_shutdown }
+finish_test
diff --git a/test/multiplex3.test b/test/multiplex3.test
new file mode 100644
index 0000000000000000000000000000000000000000..31883501639750e7c280b54d93a5d3734850386c
--- /dev/null
+++ b/test/multiplex3.test
@@ -0,0 +1,168 @@
+
+# 2011 December 13
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains tests for error (IO, OOM etc.) handling when using
+# the multiplexor extension with 8.3 filenames.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+set ::testprefix multiplex3
+
+ifcapable !8_3_names {
+  puts -nonewline "SQLite compiled without SQLITE_ENABLE_8_3_NAMES. "
+  puts            "Skipping tests multiplex3-*."
+  finish_test
+  return
+}
+
+db close
+sqlite3_shutdown
+sqlite3_config_uri 1
+autoinstall_test_functions
+
+sqlite3_multiplex_initialize "" 1
+
+proc destroy_vfs_stack {} {
+  generic_unregister stack
+  sqlite3_multiplex_shutdown
+}
+
+proc multiplex_delete_db {} {
+  forcedelete test.db
+  for {set i 1} {$i <= 1000} {incr i} {
+    forcedelete test.[format %03d $i]
+  }
+}
+
+# Procs to save and restore the current muliplexed database.
+#
+proc multiplex_save_db {} {
+  foreach f [glob -nocomplain sv_test.*] { forcedelete $f }
+  foreach f [glob -nocomplain test.*]    { forcecopy $f "sv_$f" }
+}
+proc multiplex_restore_db {} {
+  foreach f [glob -nocomplain test.*]    {forcedelete $f}
+  foreach f [glob -nocomplain sv_test.*] {forcecopy $f [string range $f 3 end]} }
+
+proc setup_and_save_db {} {
+  multiplex_delete_db
+  sqlite3 db file:test.db?8_3_names=1
+  sqlite3_multiplex_control db main chunk_size [expr 256*1024]
+  execsql {
+    CREATE TABLE t1(a PRIMARY KEY, b);
+    INSERT INTO t1 VALUES(randomblob(15), randomblob(2000));
+    INSERT INTO t1 SELECT randomblob(15), randomblob(2000) FROM t1;    --   2
+    INSERT INTO t1 SELECT randomblob(15), randomblob(2000) FROM t1;    --   4
+    INSERT INTO t1 SELECT randomblob(15), randomblob(2000) FROM t1;    --   8
+    INSERT INTO t1 SELECT randomblob(15), randomblob(2000) FROM t1;    --  16
+    INSERT INTO t1 SELECT randomblob(15), randomblob(2000) FROM t1;    --  32
+    INSERT INTO t1 SELECT randomblob(15), randomblob(2000) FROM t1;    --  64
+    INSERT INTO t1 SELECT randomblob(15), randomblob(2000) FROM t1;    -- 128
+    INSERT INTO t1 SELECT randomblob(15), randomblob(2000) FROM t1;    -- 256
+    INSERT INTO t1 SELECT randomblob(15), randomblob(2000) FROM t1;    -- 512
+  }
+  set ::cksum1 [execsql {SELECT md5sum(a, b) FROM t1 ORDER BY a}]
+  db close
+  multiplex_save_db
+}
+
+do_test 1.0 { setup_and_save_db } {}
+do_faultsim_test 1 -prep {
+  multiplex_restore_db
+  sqlite3 db file:test.db?8_3_names=1
+  sqlite3_multiplex_control db main chunk_size [expr 256*1024]
+  execsql { PRAGMA journal_mode = truncate }
+  execsql { PRAGMA synchronous = off }
+} -body {
+  execsql {
+    UPDATE t1 SET a=randomblob(12), b=randomblob(1500) WHERE (rowid%32)=0
+  }
+} -test {
+  faultsim_test_result {0 {}}
+  if {$testrc!=0} {
+    set cksum2 [execsql {SELECT md5sum(a, b) FROM t1 ORDER BY a}]
+    if {$cksum2 != $::cksum1} { error "data mismatch" }
+  }
+}
+
+#-------------------------------------------------------------------------
+# The following tests verify that hot-journal rollback works. As follows:
+#
+#   1. Create a large database.
+#   2. Set the pager cache to be very small.
+#   3. Open a transaction. 
+#   4. Run the following 100 times:
+#      a. Update a row.
+#      b. Copy all files on disk to a new db location, including the journal.
+#      c. Verify that the new db can be opened and that the content matches
+#         the database created in step 1 (proving the journal was rolled
+#         back).
+
+do_test 2.0 { 
+  setup_and_save_db
+  multiplex_restore_db
+  sqlite3 db file:test.db?8_3_names=1
+  execsql { PRAGMA cache_size = 10 }
+  execsql { BEGIN }
+} {}
+
+for {set iTest 1} {$iTest<=100} {incr iTest} {
+  do_test 2.$iTest {
+    execsql { 
+      UPDATE t1 SET a=randomblob(12), b=randomblob(1400) WHERE rowid=5*$iTest
+    }
+    foreach f [glob -nocomplain test.*] {forcecopy $f "xx_$f"}
+    sqlite3 db2 file:xx_test.db?8_3_names=1
+    execsql {SELECT md5sum(a, b) FROM t1 ORDER BY a} db2
+  } $::cksum1
+
+  db2 close
+}
+catch { db close }
+
+
+do_test 3.0 { setup_and_save_db } {}
+do_faultsim_test 3 -faults ioerr-trans* -prep {
+
+  forcedelete test2.db
+  set fd [open test2.wal w]
+  seek $fd 4095
+  puts -nonewline $fd x
+  close $fd
+
+  multiplex_restore_db
+  sqlite3 db file:test.db?8_3_names=1
+  sqlite3 db2 file:test2.db?8_3_names=1
+  sqlite3_multiplex_control db main chunk_size [expr 256*1024]
+  sqlite3_multiplex_control db2 main chunk_size [expr 256*1024]
+} -body {
+  sqlite3_backup B db2 main db main
+  B step 100000
+  set rc [B finish]
+  if { [string match SQLITE_IOERR_* $rc] } {error "disk I/O error"}
+  set rc
+} -test {
+  faultsim_test_result {0 SQLITE_OK}
+  if {$testrc==0} {
+    set cksum2 [execsql {SELECT md5sum(a, b) FROM t1 ORDER BY a} db2]
+    if {$cksum2 != $::cksum1} { error "data mismatch" }
+  }
+  catch { B finish }
+  catch { db close }
+  catch { db2 close }
+}
+
+catch { db close }
+sqlite3_multiplex_shutdown
+finish_test
diff --git a/test/multiplex4.test b/test/multiplex4.test
new file mode 100644
index 0000000000000000000000000000000000000000..2caebeadb70f512971234ef972317f7626a49991
--- /dev/null
+++ b/test/multiplex4.test
@@ -0,0 +1,132 @@
+# 2014-09-25
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains tests for the "truncate" option in the multiplexor.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix multiplex4
+
+db close
+sqlite3_shutdown
+sqlite3_multiplex_initialize {} 0
+
+# delete all filesl with the base name of $basename
+#
+proc multiplex_delete_db {basename} {
+  foreach file [glob -nocomplain $basename.*] {
+    forcedelete $file
+  }
+}
+
+# Return a sorted list of all files with the base name of $basename.
+# Except, delete all text from the end of $basename through the NNN
+# suffix on the end of the filename.
+#
+proc multiplex_file_list {basename} {
+  set x {}
+  foreach file [glob -nocomplain $basename.*] {
+    regsub "^$basename\\..*(\\d\\d\\d)\$" $file $basename.\\1 file
+    lappend x $file
+  }
+  return [lsort $x]
+}
+
+do_test multiplex4-1.0 {
+  multiplex_delete_db mx4test
+  sqlite3 db {file:mx4test.db?chunksize=10&truncate=1} -uri 1 -vfs multiplex
+  db eval {
+    CREATE TABLE t1(x);
+    INSERT INTO t1(x) VALUES(randomblob(250000));
+  }
+  multiplex_file_list mx4test
+} {mx4test.001 mx4test.db}
+
+do_test multiplex4-1.1 {
+  db eval {
+    DELETE FROM t1;
+    VACUUM;
+  }
+  multiplex_file_list mx4test
+} {mx4test.db}
+
+# NB:  The PRAGMA multiplex_truncate command is implemented using the
+# SQLITE_FCNTL_PRAGMA file-control...
+#
+# EVIDENCE-OF: R-12238-55120 Whenever a PRAGMA statement is parsed, an
+# SQLITE_FCNTL_PRAGMA file control is sent to the open sqlite3_file
+# object corresponding to the database file to which the pragma
+# statement refers.
+#
+do_test multiplex4-1.2 {
+  db eval {PRAGMA multiplex_truncate}
+} {on}
+do_test multiplex4-1.3 {
+  db eval {PRAGMA multiplex_truncate=off}
+} {off}
+do_test multiplex4-1.4 {
+  db eval {PRAGMA multiplex_truncate}
+} {off}
+do_test multiplex4-1.5 {
+  db eval {PRAGMA multiplex_truncate=on}
+} {on}
+do_test multiplex4-1.6 {
+  db eval {PRAGMA multiplex_truncate}
+} {on}
+do_test multiplex4-1.7 {
+  db eval {PRAGMA multiplex_truncate=0}
+} {off}
+do_test multiplex4-1.8 {
+  db eval {PRAGMA multiplex_truncate=1}
+} {on}
+do_test multiplex4-1.9 {
+  db eval {PRAGMA multiplex_truncate=0}
+} {off}
+
+# EVIDENCE-OF: R-26188-08449 If the SQLITE_FCNTL_PRAGMA file control
+# returns SQLITE_OK, then the parser assumes that the VFS has handled
+# the PRAGMA itself and the parser generates a no-op prepared statement
+# if result string is NULL, or that returns a copy of the result string
+# if the string is non-NULL.
+#
+do_test multiplex4-1.9-explain {
+  db eval {EXPLAIN PRAGMA multiplex_truncate=0;}
+} {/String8 \d \d \d off/}
+
+do_test multiplex4-1.10 {
+  db eval {
+    INSERT INTO t1(x) VALUES(randomblob(250000));
+  }
+  multiplex_file_list mx4test
+} {mx4test.001 mx4test.db}
+
+do_test multiplex4-1.11 {
+  db eval {
+    DELETE FROM t1;
+    VACUUM;
+  }
+  multiplex_file_list mx4test
+} {mx4test.001 mx4test.db}
+
+do_test multiplex4-1.12 {
+  db eval {
+    PRAGMA multiplex_truncate=ON;
+    DROP TABLE t1;
+    VACUUM;
+  }
+  multiplex_file_list mx4test
+} {mx4test.db}
+
+catch { db close }
+forcedelete mx4test.db
+sqlite3_multiplex_shutdown
+finish_test
diff --git a/test/mutex1.test b/test/mutex1.test
new file mode 100644
index 0000000000000000000000000000000000000000..cb189a7a8a787573f4207557187c85fdb8b4e631
--- /dev/null
+++ b/test/mutex1.test
@@ -0,0 +1,224 @@
+# 2008 June 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# $Id: mutex1.test,v 1.20 2009/04/23 14:58:40 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !mutex {
+  finish_test
+  return
+}
+if {[info exists tester_do_binarylog]} {
+  finish_test
+  return
+}
+
+sqlite3_reset_auto_extension
+clear_mutex_counters
+
+proc mutex_counters {varname} {
+  upvar $varname var
+  set var(total) 0
+  foreach {name value} [read_mutex_counters] {
+    set var($name) $value
+    incr var(total) $value
+  }
+}
+
+#-------------------------------------------------------------------------
+# Tests mutex1-1.* test that sqlite3_config() returns SQLITE_MISUSE if
+# is called at the wrong time. And that the first time sqlite3_initialize
+# is called it obtains the 'static_main' mutex 3 times and a recursive
+# mutex (sqlite3Config.pInitMutex) twice. Subsequent calls are no-ops
+# that do not require any mutexes.
+#
+do_test mutex1-1.0 {
+  install_mutex_counters 1
+} {SQLITE_MISUSE}
+
+do_test mutex1-1.1 {
+  db close
+  install_mutex_counters 1
+} {SQLITE_MISUSE}
+
+do_test mutex1-1.2 {
+  sqlite3_shutdown
+  install_mutex_counters 1
+} {SQLITE_OK}
+
+do_test mutex1-1.3 {
+  install_mutex_counters 0
+} {SQLITE_OK}
+
+do_test mutex1-1.4 {
+  install_mutex_counters 1
+} {SQLITE_OK}
+
+do_test mutex1-1.5 {
+  mutex_counters counters
+  set counters(total)
+} {0}
+
+do_test mutex1-1.6 {
+  sqlite3_initialize
+} {SQLITE_OK}
+
+do_test mutex1-1.7 {
+  mutex_counters counters
+  # list $counters(total) $counters(static_main)
+  expr {$counters(total)>0}
+} {1}
+
+do_test mutex1-1.8 {
+  clear_mutex_counters
+  sqlite3_initialize
+} {SQLITE_OK}
+
+do_test mutex1-1.9 {
+  mutex_counters counters
+  list $counters(total) $counters(static_main)
+} {0 0}
+
+#-------------------------------------------------------------------------
+# Tests mutex1-2.* test the three thread-safety related modes that
+# can be selected using sqlite3_config:
+#
+#   * Serialized mode,
+#   * Multi-threaded mode,
+#   * Single-threaded mode.
+#
+ifcapable threadsafe1&&shared_cache {
+  set enable_shared_cache [sqlite3_enable_shared_cache 1]
+  foreach {mode mutexes} {
+    singlethread {}
+    multithread  {
+      fast static_app1 static_app2 static_app3
+      static_lru static_main static_mem static_open
+      static_prng static_pmem static_vfs1 static_vfs2
+      static_vfs3
+    }
+    serialized  {
+      fast recursive static_app1 static_app2
+      static_app3 static_lru static_main static_mem
+      static_open static_prng static_pmem static_vfs1
+      static_vfs2 static_vfs3
+    }
+  } {
+
+    # For journal_mode=memory, the static_prng mutex is not required. This
+    # is because the header of an in-memory journal does not contain
+    # any random bytes, and so no call to sqlite3_randomness() is made.
+    if {[permutation]=="inmemory_journal"} {
+      set idx [lsearch $mutexes static_prng]
+      if {$idx>=0} { set mutexes [lreplace $mutexes $idx $idx] }
+    }
+
+    do_test mutex1.2.$mode.1 {
+      catch {db close}
+      sqlite3_shutdown
+      sqlite3_config_memstatus 1
+      sqlite3_config $mode
+    } SQLITE_OK
+
+    do_test mutex1.2.$mode.2 {
+      sqlite3_initialize
+      clear_mutex_counters
+      sqlite3 db test.db -nomutex 0 -fullmutex 0
+      catchsql { CREATE TABLE abc(a, b, c) }
+      db eval {
+        INSERT INTO abc VALUES(1, 2, 3);
+      }
+    } {}
+    ifcapable !memorymanage {
+      regsub { static_lru} $mutexes {} mutexes
+    }
+    if {$mode ne "singlethread"} {
+      do_test mutex1.2.$mode.3 {
+        #
+        # NOTE: Make sure all the app and vfs mutexes get used.
+        #
+        enter_static_mutex static_app1
+        leave_static_mutex static_app1
+        enter_static_mutex static_app2
+        leave_static_mutex static_app2
+        enter_static_mutex static_app3
+        leave_static_mutex static_app3
+        enter_static_mutex static_vfs1
+        leave_static_mutex static_vfs1
+        enter_static_mutex static_vfs2
+        leave_static_mutex static_vfs2
+        enter_static_mutex static_vfs3
+        leave_static_mutex static_vfs3
+      } {}
+    }
+    do_test mutex1.2.$mode.4 {
+      mutex_counters counters
+
+      set res [list]
+      foreach {key value} [array get counters] {
+        if {$key ne "total" && $value > 0} {
+          lappend res $key
+        }
+      }
+      lsort $res
+    } [lsort $mutexes]
+  }
+  sqlite3_enable_shared_cache $enable_shared_cache
+
+  # Open and use a connection in "nomutex" mode. Test that no recursive
+  # mutexes are obtained.
+  do_test mutex1.3.1 {
+    catch {db close}
+    clear_mutex_counters
+    sqlite3 db test.db -nomutex 1
+    execsql { SELECT * FROM abc }
+  } {1 2 3 1 2 3 1 2 3}
+  do_test mutex1.3.2 {
+    mutex_counters counters
+    set counters(recursive)
+  } {0}
+}
+
+# Test the sqlite3_db_mutex() function.
+#
+do_test mutex1.4.1 {
+  catch {db close}
+  sqlite3 db test.db
+  enter_db_mutex db
+  db eval {SELECT 1, 2, 3}
+} {1 2 3}
+do_test mutex1.4.2 {
+  leave_db_mutex db
+  db eval {SELECT 1, 2, 3}
+} {1 2 3}
+do_test mutex1.4.3 {
+  catch {db close}
+  sqlite3 db test.db -nomutex 1
+  enter_db_mutex db
+  db eval {SELECT 1, 2, 3}
+} {1 2 3}
+do_test mutex1.4.4 {
+  leave_db_mutex db
+  db eval {SELECT 1, 2, 3}
+} {1 2 3}
+
+do_test mutex1-X {
+  catch {db close}
+  sqlite3_shutdown
+  clear_mutex_counters
+  install_mutex_counters 0
+  sqlite3_initialize
+} {SQLITE_OK}
+
+autoinstall_test_functions
+finish_test
diff --git a/test/mutex2.test b/test/mutex2.test
new file mode 100644
index 0000000000000000000000000000000000000000..9dfb03e0dea1b9dd6c2a294c46735b134d656000
--- /dev/null
+++ b/test/mutex2.test
@@ -0,0 +1,105 @@
+# 2008 July 7
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test scripts for deliberate failures of mutex routines.
+#
+# $Id: mutex2.test,v 1.9 2008/10/07 15:25:49 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable !mutex {
+  finish_test
+  return
+}
+
+# deinitialize
+#
+catch {db close}
+sqlite3_reset_auto_extension
+sqlite3_shutdown
+install_mutex_counters 1
+
+# Fix the mutex subsystem so that it will not initialize.  In other words,
+# make it so that sqlite3_initialize() always fails.  
+#
+do_test mutex2-1.1 {
+  set ::disable_mutex_init 10
+  sqlite3_initialize
+} {SQLITE_IOERR}
+do_test mutex2-1.1 {
+  set ::disable_mutex_init 7
+  sqlite3_initialize
+} {SQLITE_NOMEM}
+
+proc utf16 {str} {
+  set r [encoding convertto unicode $str]
+  append r "\x00\x00"
+  return $r
+}
+
+# Now that sqlite3_initialize() is failing, try to run various APIs that
+# require that SQLite be initialized.  Verify that they fail.
+#
+do_test mutex2-2.1 {
+  set ::disable_mutex_init 7
+  set rc [catch {sqlite db test.db} msg]
+  lappend rc $msg
+} {1 {}}
+ifcapable utf16 {
+  do_test mutex2-2.2 {
+    set db2 [sqlite3_open16 [utf16 test.db] {}]
+  } {0}
+  do_test mutex2-2.3 {
+    sqlite3_complete16 [utf16 {SELECT * FROM t1;}]
+  } {7}
+}
+do_test mutex2-2.4 {
+  sqlite3_mprintf_int {This is a test %d,%d,%d} 1 2 3
+} {}
+ifcapable load_ext {
+  do_test mutex2-2.5 {
+    sqlite3_auto_extension_sqr
+  } {7}
+}
+do_test mutex2-2.6 {
+  sqlite3_reset_auto_extension
+} {}
+do_test mutex2-2.7 {
+  sqlite3_malloc 10000
+} {0}
+do_test mutex2-2.8 {
+  sqlite3_realloc 0 10000
+} {0}
+ifcapable threadsafe {
+  do_test mutex2-2.9 {
+    alloc_dealloc_mutex
+  } {0}
+}
+do_test mutex2-2.10 {
+  vfs_initfail_test
+} {}
+
+# Restore the system to a functional state
+#
+install_mutex_counters 0
+set disable_mutex_init 0
+autoinstall_test_functions
+
+# Mutex allocation works now.
+#
+
+do_test mutex2-3.1 {
+  set ptr [alloc_dealloc_mutex]
+  expr {$ptr!=0}
+} {1}
+
+
+finish_test
diff --git a/test/nan.test b/test/nan.test
new file mode 100644
index 0000000000000000000000000000000000000000..8d8a98ab3b7c3e06193e7544bf3ce845787c728d
--- /dev/null
+++ b/test/nan.test
@@ -0,0 +1,376 @@
+# 2008 April 28
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Ticket #3060
+#
+# Make sure IEEE floating point NaN values are handled properly.
+# SQLite should always convert NaN into NULL.
+#
+# Also verify that the decimal to IEEE754 binary conversion routines
+# correctly generate 0.0, +Inf, and -Inf as appropriate for numbers
+# out of range.
+#
+# $Id: nan.test,v 1.5 2008/09/18 11:30:13 danielk1977 Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Do not use a codec for tests in this file, as the database file is
+# manipulated directly using tcl scripts (using the [hexio_write] command).
+#
+do_not_use_codec
+
+do_test nan-1.1.1 {
+  db eval {
+    PRAGMA auto_vacuum=OFF;
+    PRAGMA page_size=1024;
+    CREATE TABLE t1(x FLOAT);
+  }
+  set ::STMT [sqlite3_prepare db "INSERT INTO t1 VALUES(?)" -1 TAIL]
+  sqlite3_bind_double $::STMT 1 NaN
+  sqlite3_step $::STMT
+  sqlite3_reset $::STMT
+  db eval {SELECT x, typeof(x) FROM t1}
+} {{} null}
+if {$tcl_platform(platform) != "symbian"} {
+  do_realnum_test nan-1.1.2 {
+    sqlite3_bind_double $::STMT 1 +Inf
+    sqlite3_step $::STMT
+    sqlite3_reset $::STMT
+    db eval {SELECT x, typeof(x) FROM t1}
+  } {{} null inf real}
+  do_realnum_test nan-1.1.3 {
+    sqlite3_bind_double $::STMT 1 -Inf
+    sqlite3_step $::STMT
+    sqlite3_reset $::STMT
+    db eval {SELECT x, typeof(x) FROM t1}
+  } {{} null inf real -inf real}
+  do_realnum_test nan-1.1.4 {
+    sqlite3_bind_double $::STMT 1 -NaN
+    sqlite3_step $::STMT
+    sqlite3_reset $::STMT
+    db eval {SELECT x, typeof(x) FROM t1}
+  } {{} null inf real -inf real {} null}
+  do_realnum_test nan-1.1.5 {
+    sqlite3_bind_double $::STMT 1 NaN0
+    sqlite3_step $::STMT
+    sqlite3_reset $::STMT
+    db eval {SELECT x, typeof(x) FROM t1}
+  } {{} null inf real -inf real {} null {} null}
+  do_realnum_test nan-1.1.6 {
+    sqlite3_bind_double $::STMT 1 -NaN0
+    sqlite3_step $::STMT
+    sqlite3_reset $::STMT
+    db eval {SELECT x, typeof(x) FROM t1}
+  } {{} null inf real -inf real {} null {} null {} null}
+  do_test nan-1.1.7 {
+    db eval {
+      UPDATE t1 SET x=x-x;
+      SELECT x, typeof(x) FROM t1;
+    }
+  } {{} null {} null {} null {} null {} null {} null}
+}
+
+# The following block of tests, nan-1.2.*, are the same as the nan-1.1.*
+# tests above, except that the SELECT queries used to validate data 
+# convert floating point values to text internally before returning them
+# to Tcl. This allows the tests to be run on platforms where Tcl has
+# problems converting "inf" and "-inf" from floating point to text format.
+# It also tests the internal float->text conversion routines a bit.
+#
+do_test nan-1.2.1 {
+  db eval {
+    DELETE FROM T1;
+  }
+  sqlite3_bind_double $::STMT 1 NaN
+  sqlite3_step $::STMT
+  sqlite3_reset $::STMT
+  db eval {SELECT CAST(x AS text), typeof(x) FROM t1}
+} {{} null}
+do_test nan-1.2.2 {
+  sqlite3_bind_double $::STMT 1 +Inf
+  sqlite3_step $::STMT
+  sqlite3_reset $::STMT
+  db eval {SELECT CAST(x AS text), typeof(x) FROM t1}
+} {{} null Inf real}
+do_test nan-1.2.3 {
+  sqlite3_bind_double $::STMT 1 -Inf
+  sqlite3_step $::STMT
+  sqlite3_reset $::STMT
+  db eval {SELECT CAST(x AS text), typeof(x) FROM t1}
+} {{} null Inf real -Inf real}
+do_test nan-1.2.4 {
+  sqlite3_bind_double $::STMT 1 -NaN
+  sqlite3_step $::STMT
+  sqlite3_reset $::STMT
+  db eval {SELECT CAST(x AS text), typeof(x) FROM t1}
+} {{} null Inf real -Inf real {} null}
+do_test nan-1.2.5 {
+  sqlite3_bind_double $::STMT 1 NaN0
+  sqlite3_step $::STMT
+  sqlite3_reset $::STMT
+  db eval {SELECT CAST(x AS text), typeof(x) FROM t1}
+} {{} null Inf real -Inf real {} null {} null}
+do_test nan-1.2.6 {
+  sqlite3_bind_double $::STMT 1 -NaN0
+  sqlite3_step $::STMT
+  sqlite3_reset $::STMT
+  db eval {SELECT CAST(x AS text), typeof(x) FROM t1}
+} {{} null Inf real -Inf real {} null {} null {} null}
+do_test nan-1.2.7 {
+  db eval {
+    UPDATE t1 SET x=x-x;
+    SELECT CAST(x AS text), typeof(x) FROM t1;
+  }
+} {{} null {} null {} null {} null {} null {} null}
+
+do_test nan-2.1 {
+  db eval {
+    DELETE FROM T1;
+  }
+  sqlite3_bind_double $::STMT 1 NaN
+  sqlite3_step $::STMT
+  sqlite3_reset $::STMT
+  db eval {SELECT x, typeof(x) FROM t1}
+} {{} null}
+sqlite3_finalize $::STMT
+
+# SQLite always converts NaN into NULL so it is not possible to write
+# a NaN value into the database file using SQLite.  The following series
+# of tests writes a normal floating point value (0.5) into the database,
+# then writes directly into the database file to change the 0.5 into NaN.
+# Then it reads the value of the database to verify it is converted into
+# NULL.
+#
+if {![nonzero_reserved_bytes]} {
+  do_test nan-3.1 {
+    db eval {
+      DELETE FROM t1;
+      INSERT INTO t1 VALUES(0.5);
+      PRAGMA auto_vacuum=OFF;
+      PRAGMA page_size=1024;
+      VACUUM;
+    }
+    hexio_read test.db 2040 8
+  } {3FE0000000000000}
+  do_test nan-3.2 {
+    db eval {
+      SELECT x, typeof(x) FROM t1
+    }
+  } {0.5 real}
+  do_test nan-3.3 {
+    db close
+    hexio_write test.db 2040 FFF8000000000000
+    sqlite3 db test.db
+    db eval {SELECT x, typeof(x) FROM t1}
+  } {{} null}
+  do_test nan-3.4 {
+    db close
+    hexio_write test.db 2040 7FF8000000000000
+    sqlite3 db test.db
+    db eval {SELECT x, typeof(x) FROM t1}
+  } {{} null}
+  do_test nan-3.5 {
+    db close
+    hexio_write test.db 2040 FFFFFFFFFFFFFFFF
+    sqlite3 db test.db
+    db eval {SELECT x, typeof(x) FROM t1}
+  } {{} null}
+  do_test nan-3.6 {
+    db close
+    hexio_write test.db 2040 7FFFFFFFFFFFFFFF
+    sqlite3 db test.db
+    db eval {SELECT x, typeof(x) FROM t1}
+  } {{} null}
+}
+
+# Verify that the sqlite3AtoF routine is able to handle extreme
+# numbers.
+#
+do_test nan-4.1 {
+  db eval {DELETE FROM t1}
+  db eval "INSERT INTO t1 VALUES([string repeat 9 307].0)"
+  db eval {SELECT x, typeof(x) FROM t1}
+} {1e+307 real}
+do_test nan-4.2 {
+  db eval {DELETE FROM t1}
+  db eval "INSERT INTO t1 VALUES([string repeat 9 308].0)"
+  db eval {SELECT x, typeof(x) FROM t1}
+} {1e+308 real}
+do_test nan-4.3 {
+  db eval {DELETE FROM t1}
+  db eval "INSERT INTO t1 VALUES(-[string repeat 9 307].0)"
+  db eval {SELECT x, typeof(x) FROM t1}
+} {-1e+307 real}
+do_test nan-4.4 {
+  db eval {DELETE FROM t1}
+  db eval "INSERT INTO t1 VALUES(-[string repeat 9 308].0)"
+  db eval {SELECT x, typeof(x) FROM t1}
+} {-1e+308 real}
+do_test nan-4.5 {
+  db eval {DELETE FROM t1}
+  set big -[string repeat 0 10000][string repeat 9 308].[string repeat 0 10000]
+  db eval "INSERT INTO t1 VALUES($big)"
+  db eval {SELECT x, typeof(x) FROM t1}
+} {-1e+308 real}
+do_test nan-4.6 {
+  db eval {DELETE FROM t1}
+  set big [string repeat 0 10000][string repeat 9 308].[string repeat 0 10000]
+  db eval "INSERT INTO t1 VALUES($big)"
+  db eval {SELECT x, typeof(x) FROM t1}
+} {1e+308 real}
+
+if {$tcl_platform(platform) != "symbian"} {
+  # Do not run these tests on Symbian, as the Tcl port doesn't like to
+  # convert from floating point value "-inf" to a string.
+  #
+  do_realnum_test nan-4.7 {
+    db eval {DELETE FROM t1}
+    db eval "INSERT INTO t1 VALUES([string repeat 9 309].0)"
+    db eval {SELECT x, typeof(x) FROM t1}
+  } {inf real}
+  do_realnum_test nan-4.8 {
+    db eval {DELETE FROM t1}
+    db eval "INSERT INTO t1 VALUES(-[string repeat 9 309].0)"
+    db eval {SELECT x, typeof(x) FROM t1}
+  } {-inf real}
+}
+do_test nan-4.9 {
+  db eval {DELETE FROM t1}
+  db eval "INSERT INTO t1 VALUES([string repeat 9 309].0)"
+  db eval {SELECT CAST(x AS text), typeof(x) FROM t1}
+} {Inf real}
+do_test nan-4.10 {
+  db eval {DELETE FROM t1}
+  db eval "INSERT INTO t1 VALUES(-[string repeat 9 309].0)"
+  db eval {SELECT CAST(x AS text), typeof(x) FROM t1}
+} {-Inf real}
+
+do_test nan-4.11 {
+  db eval {DELETE FROM t1}
+  db eval "INSERT INTO t1 VALUES(1234.5[string repeat 0 10000]12345)"
+  db eval {SELECT x, typeof(x) FROM t1}
+} {1234.5 real}
+do_test nan-4.12 {
+  db eval {DELETE FROM t1}
+  db eval "INSERT INTO t1 VALUES(-1234.5[string repeat 0 10000]12345)"
+  db eval {SELECT x, typeof(x) FROM t1}
+} {-1234.5 real}
+do_test nan-4.13 {
+  db eval {DELETE FROM t1}
+  set small [string repeat 0 10000].[string repeat 0 324][string repeat 9 10000]
+  db eval "INSERT INTO t1 VALUES($small)"
+  db eval {SELECT x, typeof(x) FROM t1}
+} {0.0 real}
+do_test nan-4.14 {
+  db eval {DELETE FROM t1}
+  set small \
+      -[string repeat 0 10000].[string repeat 0 324][string repeat 9 10000]
+  db eval "INSERT INTO t1 VALUES($small)"
+  db eval {SELECT x, typeof(x) FROM t1}
+} {0.0 real}
+
+# These tests test some really, really small floating point numbers.
+#
+load_static_extension db decimal
+if {$tcl_platform(platform) != "symbian"} {
+  # These two are not run on symbian because tcl has trouble converting
+  # the very small numbers back to text form (probably due to a difference
+  # in the sprintf() implementation).
+  #
+  do_test nan-4.15 {
+    db eval {DELETE FROM t1}
+    set small \
+        [string repeat 0 10000].[string repeat 0 323][string repeat 9 10000]
+    db eval "INSERT INTO t1 VALUES($small)"
+    db eval {SELECT decimal_exp(x), typeof(x) FROM t1}
+  } {/9\.88131291682493\d*e-324 real/}
+  do_test nan-4.16 {
+    db eval {DELETE FROM t1}
+    set small \
+        -[string repeat 0 10000].[string repeat 0 323][string repeat 9 10000]
+    db eval "INSERT INTO t1 VALUES($small)"
+    db eval {SELECT decimal_exp(x), typeof(x) FROM t1}
+  } {/-9\.88131291682493\d*e-324 real/}
+}
+do_test nan-4.17 {
+  db eval {DELETE FROM t1}
+  set small [string repeat 0 10000].[string repeat 0 323][string repeat 9 10000]
+  db eval "INSERT INTO t1 VALUES($small)"
+  db eval {SELECT CAST(x AS text), typeof(x) FROM t1}
+} {9.88131291682493e-324 real}
+do_test nan-4.18 {
+  db eval {DELETE FROM t1}
+  set small \
+      -[string repeat 0 10000].[string repeat 0 323][string repeat 9 10000]
+  db eval "INSERT INTO t1 VALUES($small)"
+  db eval {SELECT CAST(x AS text), typeof(x) FROM t1}
+} {-9.88131291682493e-324 real}
+
+do_realnum_test nan-4.20 {
+  db eval {DELETE FROM t1}
+  set big [string repeat 9 10000].0e-9000
+  db eval "INSERT INTO t1 VALUES($big)"
+  db eval {SELECT x, typeof(x) FROM t1}
+} {inf real}
+
+do_realnum_test nan-4.30 {
+  db eval {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES('2.5e+9999');
+    SELECT x, typeof(x) FROM t1;
+  }
+} {inf real}
+do_realnum_test nan-4.31 {
+  db eval {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES('2.5e+10000');
+    SELECT x, typeof(x) FROM t1;
+  }
+} {inf real}
+
+do_realnum_test nan-4.32 {
+  db eval {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES('2.5e-9999');
+    SELECT x, typeof(x) FROM t1;
+  }
+} {0.0 real}
+do_realnum_test nan-4.33 {
+  db eval {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES('2.5e-10000');
+    SELECT x, typeof(x) FROM t1;
+  }
+} {0.0 real}
+do_realnum_test nan-4.34 {
+  db eval {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES('2.5e2147483650');
+    SELECT x, typeof(x) FROM t1;
+  }
+} {inf real}
+do_realnum_test nan-4.35 {
+  db eval {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES('2.5e-2147483650');
+    SELECT x, typeof(x) FROM t1;
+  }
+} {0.0 real}
+
+do_realnum_test nan-4.40 {
+  db eval {
+    SELECT cast('-1e999' AS real);
+  }
+} {-inf}
+
+finish_test
diff --git a/test/nockpt.test b/test/nockpt.test
new file mode 100644
index 0000000000000000000000000000000000000000..4cc61d11e112e4d91226dfa00f6dbbf54e8d1dcd
--- /dev/null
+++ b/test/nockpt.test
@@ -0,0 +1,147 @@
+# 2016 October 31
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE
+# option.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+source $testdir/malloc_common.tcl
+source $testdir/wal_common.tcl
+ifcapable !wal {finish_test ; return }
+if {[permutation]=="journaltest" || [permutation]=="inmemory_journal"} {
+  finish_test
+  return
+}
+
+set testprefix nockpt
+
+do_execsql_test 1.0 {
+  PRAGMA auto_vacuum=OFF;
+  PRAGMA page_size = 1024;
+  PRAGMA journal_mode = wal;
+  CREATE TABLE c1(x, y, z);
+  INSERT INTO c1 VALUES(1, 2, 3);
+} {wal}
+
+do_test 1.1 { file exists test.db-wal } 1
+do_test 1.2 { file size test.db-wal } [wal_file_size 3 1024]
+do_test 1.3 { db close } {}
+do_test 1.4 { file exists test.db-wal } 0
+
+sqlite3 db test.db
+do_execsql_test 1.5 {
+  INSERT INTO c1 VALUES(4, 5, 6);
+  INSERT INTO c1 VALUES(7, 8, 9);
+}
+do_test 1.6 { file exists test.db-wal } 1
+do_test 1.7 { sqlite3_db_config db NO_CKPT_ON_CLOSE 1 } {1}
+do_test 1.8 { file size test.db-wal } [wal_file_size 2 1024]
+do_test 1.9 { db close } {}
+do_test 1.10 { file exists test.db-wal } 1
+do_test 1.11 { file size test.db-wal } [wal_file_size 2 1024]
+
+sqlite3 db test.db
+do_execsql_test 1.12 {
+  SELECT * FROM c1
+} {1 2 3 4 5 6 7 8 9}
+
+do_execsql_test 1.13 { PRAGMA main.journal_mode } {wal}
+do_test 1.14 { sqlite3_db_config db NO_CKPT_ON_CLOSE 1 } {1}
+do_execsql_test 1.14 { PRAGMA main.journal_mode = delete } {delete}
+do_test 1.15 { file exists test.db-wal } {0}
+
+if {$::tcl_platform(platform)!="windows"} {
+#-------------------------------------------------------------------------
+# Test an unusual scenario:
+#
+#   1. A wal mode db is opened and written. Then sqlite3_close_v2() used
+#      to close the db handle while there is still an unfinalized
+#      statement (so the db handle stays open).
+#
+#   2. The db, wal and *-shm files are deleted from the file system.
+#
+#   3. Another connection creates a new wal mode db at the same file-system
+#      location as the previous one.
+#
+#   4. The statement left unfinalized in (1) is finalized.
+#
+# The test is to ensure that the connection left open in step (1) does
+# not try to delete the wal file from the file-system as part of step
+# 4.
+#
+reset_db
+db close
+
+# Open a connection on a wal database. Write to it a bit. Then prepare
+# a statement and call sqlite3_close_v2() (so that the statement handle
+# holds the db connection open).
+#
+set ::db1 [sqlite3_open_v2 test.db SQLITE_OPEN_READWRITE ""]
+do_test 2.0 {
+  lindex [
+    sqlite3_exec $::db1 {
+      PRAGMA journal_mode = wal;
+      CREATE TABLE t1(x PRIMARY KEY, y UNIQUE, z);
+      INSERT INTO t1 VALUES(1, 2, 3);
+      PRAGMA wal_checkpoint;
+    }] 0
+} {0}
+set ::stmt [sqlite3_prepare $::db1 "SELECT * FROM t1" -1 dummy]
+sqlite3_close_v2 $::db1
+
+# Delete the database, wal and shm files.
+#
+forcedelete test.db test.db-wal test.db-shm
+
+# Open and populate a new database file at the same file-system location
+# as the one just deleted. Contrive a partial checkpoint on it.
+#
+sqlite3 db  test.db
+sqlite3 db2 test.db
+do_execsql_test 2.1 {
+  PRAGMA auto_vacuum=OFF;
+  PRAGMA journal_mode = wal;
+  CREATE TABLE y1(a PRIMARY KEY, b UNIQUE, c);
+  INSERT INTO y1 VALUES('a', 'b', 'c');
+  INSERT INTO y1 VALUES('d', 'e', 'f');
+} {wal}
+do_execsql_test -db db2 2.2 {
+  BEGIN;
+    SELECT * FROM y1;
+} {a b c d e f}
+do_execsql_test 2.3 {
+  UPDATE y1 SET c='g' WHERE a='d';
+  PRAGMA wal_checkpoint;
+} {0 11 10}
+do_execsql_test -db db2 2.4 {
+  COMMIT
+}
+
+# Finalize the statement handle, causing the first connection to be
+# closed. Test that this has not corrupted the database file by 
+# deleting the new wal file from the file-system. If it has, this
+# test should fail with an IO or corruption error.
+#
+do_test 2.5 {
+  sqlite3_finalize $::stmt
+  sqlite3 db3 test.db
+  execsql { 
+    PRAGMA integrity_check; 
+    SELECT * FROM y1;
+  } db3
+} {ok a b c d e g}
+}
+
+
+finish_test
diff --git a/test/nolock.test b/test/nolock.test
new file mode 100644
index 0000000000000000000000000000000000000000..e732dcf13bd8f77424f80aca7aa47e89a3929b82
--- /dev/null
+++ b/test/nolock.test
@@ -0,0 +1,220 @@
+# 2014-05-07
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the nolock=1 and immutable=1 query
+# parameters and the SQLITE_IOCAP_IMMUTABLE device characteristic.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+unset -nocomplain tvfs_calls
+proc tvfs_reset {} {
+  global tvfs_calls
+  array set tvfs_calls {xLock 0 xUnlock 0 xCheckReservedLock 0 xAccess 0}
+}
+proc tvfs_callback {op args} {
+  global tvfs_calls
+  incr tvfs_calls($op)
+  return SQLITE_OK
+}
+tvfs_reset
+
+testvfs tvfs
+tvfs script tvfs_callback
+tvfs filter {xLock xUnlock xCheckReservedLock xAccess}
+
+############################################################################
+# Verify that the nolock=1 query parameter for URI filenames disables all
+# calls to xLock and xUnlock for rollback databases.
+#
+do_test nolock-1.0 {
+  db close
+  forcedelete test.db
+  tvfs_reset
+  sqlite db test.db -vfs tvfs
+  db eval {CREATE TABLE t1(a,b,c); INSERT INTO t1 VALUES(1,2,3);}
+  list xLock $::tvfs_calls(xLock) xUnlock $::tvfs_calls(xUnlock) \
+       xCheckReservedLock $::tvfs_calls(xCheckReservedLock)
+} {xLock 7 xUnlock 5 xCheckReservedLock 0}
+
+do_test nolock-1.1 {
+  db close
+  forcedelete test.db
+  tvfs_reset
+  sqlite db file:test.db?nolock=0 -vfs tvfs -uri 1
+  db eval {CREATE TABLE t1(a,b,c); INSERT INTO t1 VALUES(1,2,3);}
+  list xLock $::tvfs_calls(xLock) xUnlock $::tvfs_calls(xUnlock) \
+       xCheckReservedLock $::tvfs_calls(xCheckReservedLock)
+} {xLock 7 xUnlock 5 xCheckReservedLock 0}
+
+do_test nolock-1.2 {
+  db close
+  forcedelete test.db
+  tvfs_reset
+  sqlite db file:test.db?nolock=1 -vfs tvfs -uri 1
+  db eval {CREATE TABLE t1(a,b,c); INSERT INTO t1 VALUES(1,2,3);}
+  list xLock $::tvfs_calls(xLock) xUnlock $::tvfs_calls(xUnlock) \
+       xCheckReservedLock $::tvfs_calls(xCheckReservedLock)
+} {xLock 0 xUnlock 0 xCheckReservedLock 0}
+
+do_test nolock-1.3 {
+  db close
+  tvfs_reset
+  sqlite db file:test.db?nolock=0 -vfs tvfs -uri 1 -readonly 1
+  db eval {SELECT * FROM t1}
+  list xLock $::tvfs_calls(xLock) xUnlock $::tvfs_calls(xUnlock) \
+       xCheckReservedLock $::tvfs_calls(xCheckReservedLock)
+} {xLock 2 xUnlock 2 xCheckReservedLock 0}
+
+do_test nolock-1.4 {
+  db close
+  tvfs_reset
+  sqlite db file:test.db?nolock=1 -vfs tvfs -uri 1 -readonly 1
+  db eval {SELECT * FROM t1}
+  list xLock $::tvfs_calls(xLock) xUnlock $::tvfs_calls(xUnlock) \
+       xCheckReservedLock $::tvfs_calls(xCheckReservedLock)
+} {xLock 0 xUnlock 0 xCheckReservedLock 0}
+
+#############################################################################
+# Verify that immutable=1 disables both locking and xAccess calls to the
+# journal files.
+#
+do_test nolock-2.0 {
+  db close
+  forcedelete test.db
+  # begin by creating a test database
+  sqlite3 db test.db
+  db eval {
+     CREATE TABLE t1(a,b);
+     INSERT INTO t1 VALUES('hello','world');
+     CREATE TABLE t2(x,y);
+     INSERT INTO t2 VALUES(12345,67890);
+     SELECT * FROM t1, t2;
+  }
+} {hello world 12345 67890}
+do_test nolock-2.1 {
+  tvfs_reset
+  sqlite3 db2 test.db -vfs tvfs
+  db2 eval {SELECT * FROM t1, t2}
+} {hello world 12345 67890}
+do_test nolock-2.2 {
+  list xLock $::tvfs_calls(xLock) xUnlock $::tvfs_calls(xUnlock) \
+       xCheckReservedLock $::tvfs_calls(xCheckReservedLock) \
+       xAccess $::tvfs_calls(xAccess)
+} {xLock 2 xUnlock 2 xCheckReservedLock 0 xAccess 4}
+
+
+do_test nolock-2.11 {
+  db2 close
+  tvfs_reset
+  sqlite3 db2 file:test.db?immutable=0 -vfs tvfs -uri 1
+  db2 eval {SELECT * FROM t1, t2}
+} {hello world 12345 67890}
+do_test nolock-2.12 {
+  list xLock $::tvfs_calls(xLock) xUnlock $::tvfs_calls(xUnlock) \
+       xCheckReservedLock $::tvfs_calls(xCheckReservedLock) \
+       xAccess $::tvfs_calls(xAccess)
+} {xLock 2 xUnlock 2 xCheckReservedLock 0 xAccess 4}
+
+
+do_test nolock-2.21 {
+  db2 close
+  tvfs_reset
+  sqlite3 db2 file:test.db?immutable=1 -vfs tvfs -uri 1
+  db2 eval {SELECT * FROM t1, t2}
+} {hello world 12345 67890}
+do_test nolock-2.22 {
+  list xLock $::tvfs_calls(xLock) xUnlock $::tvfs_calls(xUnlock) \
+       xCheckReservedLock $::tvfs_calls(xCheckReservedLock) \
+       xAccess $::tvfs_calls(xAccess)
+} {xLock 0 xUnlock 0 xCheckReservedLock 0 xAccess 0}
+
+do_test nolock-2.31 {
+  db2 close
+  tvfs_reset
+  sqlite3 db2 file:test.db?immutable=1 -vfs tvfs -uri 1 -readonly 1
+  db2 eval {SELECT * FROM t1, t2}
+} {hello world 12345 67890}
+do_test nolock-2.32 {
+  list xLock $::tvfs_calls(xLock) xUnlock $::tvfs_calls(xUnlock) \
+       xCheckReservedLock $::tvfs_calls(xCheckReservedLock) \
+       xAccess $::tvfs_calls(xAccess)
+} {xLock 0 xUnlock 0 xCheckReservedLock 0 xAccess 0}
+
+############################################################################
+# Verify that the SQLITE_IOCAP_IMMUTABLE flag works
+#
+do_test nolock-3.1 {
+  db2 close
+  tvfs devchar immutable
+  tvfs_reset
+  sqlite3 db2 test.db -vfs tvfs
+  db2 eval {SELECT * FROM t1, t2}
+} {hello world 12345 67890}
+do_test nolock-3.2 {
+  list xLock $::tvfs_calls(xLock) xUnlock $::tvfs_calls(xUnlock) \
+       xCheckReservedLock $::tvfs_calls(xCheckReservedLock) \
+       xAccess $::tvfs_calls(xAccess)
+} {xLock 0 xUnlock 0 xCheckReservedLock 0 xAccess 0}
+
+do_test nolock-3.11 {
+  db2 close
+  tvfs_reset
+  sqlite3 db2 test.db -vfs tvfs -readonly 1
+  db2 eval {SELECT * FROM t1, t2}
+} {hello world 12345 67890}
+do_test nolock-3.12 {
+  list xLock $::tvfs_calls(xLock) xUnlock $::tvfs_calls(xUnlock) \
+       xCheckReservedLock $::tvfs_calls(xCheckReservedLock) \
+       xAccess $::tvfs_calls(xAccess)
+} {xLock 0 xUnlock 0 xCheckReservedLock 0 xAccess 0}
+
+db2 close
+db close
+tvfs delete
+
+if {[permutation]!="inmemory_journal"} {
+  # 2016-03-11:  Make sure all works when transitioning to WAL mode
+  # under nolock.
+  #
+  do_test nolock-4.1 {
+    forcedelete test.db
+    sqlite3 db file:test.db?nolock=1 -uri 1
+    db eval {
+       PRAGMA journal_mode=WAL;
+       CREATE TABLE t1(x);
+       INSERT INTO t1 VALUES('youngling');
+       SELECT * FROM t1;
+    }
+  } {delete youngling}
+  db close
+  
+  do_test nolock-4.2 {
+    forcedelete test.db
+    sqlite3 db test.db
+    db eval {
+      PRAGMA journal_mode=WAL;
+      CREATE TABLE t1(x);
+      INSERT INTO t1 VALUES('catbird');
+      SELECT * FROM t1;
+    }
+  } {wal catbird}
+  do_test nolock-4.3 {
+    db close
+    sqlite3 db file:test.db?nolock=1 -uri 1
+    set rc [catch {db eval {SELECT * FROM t1}} msg]
+    lappend rc $msg
+  } {1 {unable to open database file}}
+}
+
+finish_test
diff --git a/test/normalize.test b/test/normalize.test
new file mode 100644
index 0000000000000000000000000000000000000000..29a5aabb2623b0cc9eaf9868664f7bbd7bce1360
--- /dev/null
+++ b/test/normalize.test
@@ -0,0 +1,394 @@
+# 2018-01-08
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests for the sqlite3_normalize() extension function.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix normalize
+
+foreach {tnum sql norm} {
+  100
+  {SELECT * FROM t1 WHERE a IN (1) AND b=51.42}
+  {select*from t1 where a in(?,?,?)and b=?;}
+
+  110
+  {SELECT a, b+15, c FROM t1 WHERE d NOT IN (SELECT x FROM t2);}
+  {select a,b+?,c from t1 where d not in(select x from t2);}
+
+  120
+  { SELECT NULL, b FROM t1 -- comment text
+     WHERE d IN (WITH t(a) AS (VALUES(5)) /* CTE */
+                 SELECT a FROM t)
+        OR e='hello';
+  }
+  {select?,b from t1 where d in(with t(a)as(values(?))select a from t)or e=?;}
+
+  121
+  {/*Initial comment*/
+   -- another comment line
+   SELECT NULL  /* comment */ , b FROM t1 -- comment text
+     WHERE d IN (WITH t(a) AS (VALUES(5)) /* CTE */
+                 SELECT a FROM t)
+        OR e='hello';
+  }
+  {select?,b from t1 where d in(with t(a)as(values(?))select a from t)or e=?;}
+
+  130
+  {/* Query containing parameters */
+   SELECT x,$::abc(15),y,@abc,z,?99,w FROM t1 /* Trailing comment */}
+  {select x,?,y,?,z,?,w from t1;}
+
+  140
+  {/* Long list on the RHS of IN */
+   SELECT 15 IN (1,2,3,(SELECT * FROM t1),'xyz',x'abcd',22*(x+5),null);}
+  {select?in(?,?,?);}
+
+  150
+  {SELECT x'abc'; -- illegal token}
+  {}
+
+  160
+  {SELECT a,NULL,b FROM t1 WHERE c IS NOT NULL or D is null or e=5}
+  {select a,?,b from t1 where c is not null or d is null or e=?;}
+
+  170
+  {/* IN list exactly 5 bytes long */
+   SELECT * FROM t1 WHERE x IN (1,2,3);}
+  {select*from t1 where x in(?,?,?);}
+  180
+  {    }
+  {}
+} {
+  do_test $tnum [list sqlite3_normalize $sql] $norm
+}
+
+ifcapable normalize {
+do_test 200 {
+  execsql {
+    CREATE TABLE t1(a,b);
+  }
+} {}
+do_test 201 {
+  set STMT [sqlite3_prepare_v3 $DB \
+      "SELECT a, b FROM t1 WHERE b = ? ORDER BY a;" -1 0 TAIL]
+
+  sqlite3_bind_null $STMT 1
+} {}
+do_test 202 {
+  sqlite3_normalized_sql $STMT
+} {SELECT a,b FROM t1 WHERE b=?ORDER BY a;}
+do_test 203 {
+  sqlite3_finalize $STMT
+} {SQLITE_OK}
+
+do_test 210 {
+  set STMT [sqlite3_prepare_v3 $DB \
+      "SELECT a, b FROM t1 WHERE b = ? ORDER BY a;" -1 2 TAIL]
+
+  sqlite3_bind_null $STMT 1
+} {}
+do_test 211 {
+  sqlite3_normalized_sql $STMT
+} {SELECT a,b FROM t1 WHERE b=?ORDER BY a;}
+do_test 212 {
+  sqlite3_finalize $STMT
+} {SQLITE_OK}
+
+do_test 220 {
+  set STMT [sqlite3_prepare_v3 $DB \
+      "SELECT a, b FROM t1 WHERE b = 'a' ORDER BY a;" -1 2 TAIL]
+} {/^[0-9A-Fa-f]+$/}
+do_test 221 {
+  sqlite3_normalized_sql $STMT
+} {SELECT a,b FROM t1 WHERE b=?ORDER BY a;}
+do_test 222 {
+  sqlite3_finalize $STMT
+} {SQLITE_OK}
+
+do_test 297 {
+  execsql {
+    DROP TABLE t1;
+  }
+} {}
+do_test 298 {
+  execsql {
+    CREATE TABLE t1(a,b,c,d,e,"col f",w,x,y,z);
+    CREATE TABLE t2(x,"col y");
+  }
+} {}
+do_test 299 {
+  sqlite3_create_function db
+} {SQLITE_OK}
+
+foreach {tnum sql flags norm} {
+  300
+  {SELECT * FROM t1 WHERE a IN (1) AND b=51.42}
+  0x2
+  {0 {SELECT*FROM t1 WHERE a IN(?,?,?)AND b=?;}}
+
+  310
+  {SELECT a, b+15, c FROM t1 WHERE d NOT IN (SELECT x FROM t2);}
+  0x2
+  {0 {SELECT a,b+?,c FROM t1 WHERE d NOT IN(SELECT x FROM t2);}}
+
+  320
+  { SELECT NULL, b FROM t1 -- comment text
+     WHERE d IN (WITH t(a) AS (VALUES(5)) /* CTE */
+                 SELECT a FROM t)
+        OR e='hello';
+  }
+  0x2
+  {0 {SELECT?,b FROM t1 WHERE d IN(WITH t(a)AS(VALUES(?))SELECT a FROM t)OR e=?;}}
+
+  321
+  {/*Initial comment*/
+   -- another comment line
+   SELECT NULL  /* comment */ , b FROM t1 -- comment text
+     WHERE d IN (WITH t(a) AS (VALUES(5)) /* CTE */
+                 SELECT a FROM t)
+        OR e='hello';
+  }
+  0x2
+  {0 {SELECT?,b FROM t1 WHERE d IN(WITH t(a)AS(VALUES(?))SELECT a FROM t)OR e=?;}}
+
+  330
+  {/* Query containing parameters */
+   SELECT x,$::abc(15),y,@abc,z,?99,w FROM t1 /* Trailing comment */}
+  0x2
+  {0 {SELECT x,?,y,?,z,?,w FROM t1;}}
+
+  340
+  {/* Long list on the RHS of IN */
+   SELECT 15 IN (1,2,3,(SELECT * FROM t1),'xyz',x'abcd',22*(x+5),null);}
+  0x2
+  {1 {(1) no such column: x}}
+
+  350
+  {SELECT x'abc'; -- illegal token}
+  0x2
+  {1 {(1) unrecognized token: "x'abc'"}}
+
+  360
+  {SELECT a,NULL,b FROM t1 WHERE c IS NOT NULL or D is null or e=5}
+  0x2
+  {0 {SELECT a,?,b FROM t1 WHERE c IS NOT NULL OR d IS NULL OR e=?;}}
+
+  370
+  {/* IN list exactly 5 bytes long */
+   SELECT * FROM t1 WHERE x IN (1,2,3);}
+  0x2
+  {0 {SELECT*FROM t1 WHERE x IN(?,?,?);}}
+
+  400
+  {SELECT a FROM t1 WHERE x IN (1,2,3) AND sqlite_version();}
+  0x2
+  {0 {SELECT a FROM t1 WHERE x IN(?,?,?)AND sqlite_version();}}
+
+  410
+  {SELECT a FROM t1 WHERE x IN (1,2,3) AND hex8();}
+  0x2
+  {1 {(1) wrong number of arguments to function hex8()}}
+
+  420
+  {SELECT a FROM t1 WHERE x IN (1,2,3) AND hex8('abc');}
+  0x2
+  {0 {SELECT a FROM t1 WHERE x IN(?,?,?)AND hex8(?);}}
+
+  430
+  {SELECT "a" FROM t1 WHERE "x" IN ("1","2",'3');}
+  0x2
+  {0 {SELECT a FROM t1 WHERE x IN(?,?,?);}}
+
+  440
+  {SELECT 'a' FROM t1 WHERE 'x';}
+  0x2
+  {0 {SELECT?FROM t1 WHERE?;}}
+
+  450
+  {SELECT [a] FROM t1 WHERE [x];}
+  0x2
+  {0 {SELECT a FROM t1 WHERE x;}}
+
+  460
+  {SELECT * FROM t1 WHERE x IN (x);}
+  0x2
+  {0 {SELECT*FROM t1 WHERE x IN(x);}}
+
+  470
+  {SELECT * FROM t1 WHERE x IN (x,a);}
+  0x2
+  {0 {SELECT*FROM t1 WHERE x IN(x,a);}}
+
+  480
+  {SELECT * FROM t1 WHERE x IN ([x],"a");}
+  0x2
+  {0 {SELECT*FROM t1 WHERE x IN(x,a);}}
+
+  500
+  {SELECT * FROM t1 WHERE x IN ([x],"a",'b',sqlite_version());}
+  0x2
+  {0 {SELECT*FROM t1 WHERE x IN(x,a,?,sqlite_version());}}
+
+  520
+  {SELECT * FROM t1 WHERE x IN (SELECT x FROM t1);}
+  0x2
+  {0 {SELECT*FROM t1 WHERE x IN(SELECT x FROM t1);}}
+
+  540
+  {SELECT * FROM t1 WHERE x IN ((SELECT x FROM t1));}
+  0x2
+  {0 {SELECT*FROM t1 WHERE x IN((SELECT x FROM t1));}}
+
+  550
+  {SELECT a, a+1, a||'b', a+"b" FROM t1;}
+  0x2
+  {0 {SELECT a,a+?,a||?,a+b FROM t1;}}
+
+  570
+  {SELECT * FROM t1 WHERE x IN (1);}
+  0x2
+  {0 {SELECT*FROM t1 WHERE x IN(?,?,?);}}
+
+  580
+  {SELECT * FROM t1 WHERE x IN (1,2);}
+  0x2
+  {0 {SELECT*FROM t1 WHERE x IN(?,?,?);}}
+
+  590
+  {SELECT * FROM t1 WHERE x IN (1,2,3);}
+  0x2
+  {0 {SELECT*FROM t1 WHERE x IN(?,?,?);}}
+
+  600
+  {SELECT * FROM t1 WHERE x IN (1,2,3,4);}
+  0x2
+  {0 {SELECT*FROM t1 WHERE x IN(?,?,?);}}
+
+  610
+  {SELECT * FROM t1 WHERE x IN (SELECT x FROM t1);}
+  0x2
+  {0 {SELECT*FROM t1 WHERE x IN(SELECT x FROM t1);}}
+
+  620
+  {SELECT * FROM t1 WHERE x IN (SELECT x FROM t1 WHERE x IN (1,2,3));}
+  0x2
+  {0 {SELECT*FROM t1 WHERE x IN(SELECT x FROM t1 WHERE x IN(?,?,?));}}
+
+  630
+  {SELECT * FROM t1 WHERE x IN (SELECT x FROM t1 WHERE x IN (x));}
+  0x2
+  {0 {SELECT*FROM t1 WHERE x IN(SELECT x FROM t1 WHERE x IN(x));}}
+
+  640
+  {SELECT x FROM t1 WHERE x IN (SELECT x FROM t1 WHERE x IN (
+   SELECT x FROM t1 WHERE x IN (SELECT x FROM t1 WHERE x IN (
+   SELECT x FROM t1 WHERE x IN (x)))));}
+  0x2
+  {0 {SELECT x FROM t1 WHERE x IN(SELECT x FROM t1 WHERE x IN(SELECT x FROM t1 WHERE x IN(SELECT x FROM t1 WHERE x IN(SELECT x FROM t1 WHERE x IN(x)))));}}
+
+  650
+  {SELECT x FROM t1 WHERE x IN (SELECT x FROM t1 WHERE x IN (
+   SELECT x FROM t1 WHERE x IN (SELECT x FROM t1 WHERE x IN (
+   SELECT x FROM t1 WHERE x IN (1)))));}
+  0x2
+  {0 {SELECT x FROM t1 WHERE x IN(SELECT x FROM t1 WHERE x IN(SELECT x FROM t1 WHERE x IN(SELECT x FROM t1 WHERE x IN(SELECT x FROM t1 WHERE x IN(?,?,?)))));}}
+
+  660
+  {SELECT x FROM t1 WHERE x IN (1) UNION ALL SELECT x FROM t1 WHERE x IN (1);}
+  0x2
+  {0 {SELECT x FROM t1 WHERE x IN(?,?,?)UNION ALL SELECT x FROM t1 WHERE x IN(?,?,?);}}
+
+  670
+  {SELECT "col f", [col f] FROM t1;}
+  0x2
+  {0 {SELECT"col f","col f"FROM t1;}}
+
+  680
+  {SELECT a, "col f" FROM t1 LEFT OUTER JOIN t2 ON [t1].[col f] == [t2].[col y];}
+  0x2
+  {0 {SELECT a,"col f"FROM t1 LEFT OUTER JOIN t2 ON t1."col f"==t2."col y";}}
+
+  690
+  {SELECT * FROM ( WITH x AS ( SELECT * FROM t1 WHERE x IN ( 1)) SELECT 10);}
+  0x2
+  {0 {SELECT*FROM(WITH x AS(SELECT*FROM t1 WHERE x IN(?,?,?))SELECT?);}}
+
+  700
+  {SELECT rowid, oid, _rowid_ FROM t1;}
+  0x2
+  {0 {SELECT rowid,oid,_rowid_ FROM t1;}}
+
+  710
+  {SELECT x FROM t1 WHERE x IS NULL;}
+  0x2
+  {0 {SELECT x FROM t1 WHERE x IS NULL;}}
+
+  740
+  {SELECT x FROM t1 WHERE x IS NOT NULL;}
+  0x2
+  {0 {SELECT x FROM t1 WHERE x IS NOT NULL;}}
+
+  750
+  {SELECT x FROM t1 WHERE x = NULL;}
+  0x2
+  {0 {SELECT x FROM t1 WHERE x=?;}}
+
+  760
+  {SELECT x FROM t1 WHERE x IN ([x] IS NOT NULL, NULL, 1, 'a', "b", x'00');}
+  0x2
+  {0 {SELECT x FROM t1 WHERE x IN(x IS NOT NULL,?,?,?,b,?);}}
+
+  800
+  {ATTACH "normalize800.db" AS somefile;}
+  0x2
+  {0 {ATTACH"normalize800.db"AS somefile;}}
+
+  810
+  {ATTACH DATABASE "normalize810.db" AS somefile;}
+  0x2
+  {0 {ATTACH DATABASE"normalize810.db"AS somefile;}}
+
+  900
+  {INSERT INTO t1 (x) VALUES("sl1"), (1), ("sl2"), ('i');}
+  0x2
+  {0 {INSERT INTO t1(x)VALUES(?),(?),(?),(?);}}
+
+  910
+  {UPDATE t1 SET x = "sl1" WHERE x IN (1, "sl2", 'i');}
+  0x2
+  {0 {UPDATE t1 SET x=?WHERE x IN(?,?,?);}}
+
+  920
+  {UPDATE t1 SET x = "y" WHERE x IN (1, "sl1", 'i');}
+  0x2
+  {0 {UPDATE t1 SET x=y WHERE x IN(?,?,?);}}
+
+  930
+  {DELETE FROM t1 WHERE x IN (1, "sl1", 'i');}
+  0x2
+  {0 {DELETE FROM t1 WHERE x IN(?,?,?);}}
+} {
+  do_test $tnum {
+    set code [catch {
+      set STMT [sqlite3_prepare_v3 $DB $sql -1 $flags TAIL]
+      sqlite3_normalized_sql $STMT
+    } res]
+    if {[info exists STMT]} {
+      sqlite3_finalize $STMT; unset STMT
+    }
+    list $code $res
+  } $norm
+}
+}
+
+finish_test
diff --git a/test/notify1.test b/test/notify1.test
new file mode 100644
index 0000000000000000000000000000000000000000..be6a122585da99e1ccecdad95b242f8651109d44
--- /dev/null
+++ b/test/notify1.test
@@ -0,0 +1,500 @@
+# 2009 March 04
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the sqlite3_unlock_notify() API.
+#
+# $Id: notify1.test,v 1.4 2009/06/05 17:09:12 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !unlock_notify||!shared_cache {
+  finish_test
+  return
+}
+db close
+set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
+
+#-------------------------------------------------------------------------
+# Warm body test. Test that an unlock-notify callback can be registered 
+# and that it is invoked.
+#
+do_test notify1-1.1 {
+  sqlite3 db test.db
+  sqlite3 db2 test.db
+  execsql { CREATE TABLE t1(a, b) }
+} {}
+do_test notify1-1.2 {
+  execsql {
+    BEGIN;
+    INSERT INTO t1 VALUES(1, 2);
+  }
+  catchsql { INSERT INTO t1 VALUES(3, 4) } db2
+} {1 {database table is locked}}
+do_test notify1-1.3 {
+  set zScript ""
+  db2 unlock_notify {
+    set zScript "db2 eval { INSERT INTO t1 VALUES(3, 4) }"
+  }
+  execsql { SELECT * FROM t1 }
+} {1 2}
+do_test notify1-1.4 {
+  set zScript
+} {}
+do_test notify1-1.5 {
+  execsql { COMMIT }
+  eval $zScript
+  execsql { SELECT * FROM t1 }
+} {1 2 3 4}
+
+#-------------------------------------------------------------------------
+# Verify that invoking the "unlock_notify" method with no arguments
+# (which is the equivalent of invoking sqlite3_unlock_notify() with
+# a NULL xNotify argument) cancels a pending notify callback.
+#
+do_test notify1-1.11 {
+  execsql { DROP TABLE t1; CREATE TABLE t1(a, b) }
+} {}
+do_test notify1-1.12 {
+  execsql {
+    BEGIN;
+    INSERT INTO t1 VALUES(1, 2);
+  }
+  catchsql { INSERT INTO t1 VALUES(3, 4) } db2
+} {1 {database table is locked}}
+do_test notify1-1.13 {
+  set zScript ""
+  db2 unlock_notify {
+    set zScript "db2 eval { INSERT INTO t1 VALUES(3, 4) }"
+  }
+  execsql { SELECT * FROM t1 }
+} {1 2}
+do_test notify1-1.14 {
+  set zScript
+} {}
+do_test notify1-1.15 {
+  db2 unlock_notify
+  execsql { COMMIT }
+  eval $zScript
+  execsql { SELECT * FROM t1 }
+} {1 2}
+
+#-------------------------------------------------------------------------
+# The following tests, notify1-2.*, test that deadlock is detected 
+# correctly.
+# 
+do_test notify1-2.1 {
+  execsql { 
+    CREATE TABLE t2(a, b);
+    INSERT INTO t2 VALUES('I', 'II');
+  }
+} {}
+
+#
+# Test for simple deadlock involving two database connections.
+#
+# 1. Grab a write-lock on t1 with [db]. Then grab a read-lock on t2 with [db2].
+# 2. Try to grab a read-lock on t1 with [db2] (fails).
+# 3. Have [db2] wait on the read-lock it failed to obtain in step 2.
+# 4. Try to grab a write-lock on t2 with [db] (fails).
+# 5. Try to have [db] wait on the lock from step 4. Fails, as the system
+#    would be deadlocked (since [db2] is already waiting on [db], and this
+#    operation would have [db] wait on [db2]).
+#
+do_test notify1-2.2.1 {
+  execsql {
+    BEGIN;
+    INSERT INTO t1 VALUES(5, 6);
+  }
+  execsql {
+    BEGIN;
+    SELECT * FROM t2;
+  } db2
+} {I II}
+do_test notify1-2.2.2 {
+  catchsql { SELECT * FROM t1 } db2
+} {1 {database table is locked: t1}}
+do_test notify1-2.2.3 {
+  db2 unlock_notify {lappend unlock_notify db2}
+} {}
+do_test notify1-2.2.4 {
+  catchsql { INSERT INTO t2 VALUES('III', 'IV') }
+} {1 {database table is locked: t2}}
+do_test notify1-2.2.5 {
+  set rc [catch { db unlock_notify {lappend unlock_notify db} } msg]
+  list $rc $msg
+} {1 {database is deadlocked}}
+
+#
+# Test for slightly more complex deadlock involving three database
+# connections: db, db2 and db3.
+#
+do_test notify1-2.3.1 {
+  db close
+  db2 close
+  forcedelete test.db test2.db test3.db
+  foreach con {db db2 db3} {
+    sqlite3 $con test.db
+    $con eval { ATTACH 'test2.db' AS aux2 }
+    $con eval { ATTACH 'test3.db' AS aux3 }
+  }
+  execsql {
+    CREATE TABLE main.t1(a, b);
+    CREATE TABLE aux2.t2(a, b);
+    CREATE TABLE aux3.t3(a, b);
+  }
+} {}
+do_test notify1-2.3.2 {
+  execsql { BEGIN ; INSERT INTO t1 VALUES(1, 2) } db
+  execsql { BEGIN ; INSERT INTO t2 VALUES(1, 2) } db2
+  execsql { BEGIN ; INSERT INTO t3 VALUES(1, 2) } db3
+} {}
+do_test notify1-2.3.3 {
+  catchsql { SELECT * FROM t2 } db
+} {1 {database table is locked: t2}}
+do_test notify1-2.3.4 {
+  catchsql { SELECT * FROM t3 } db2
+} {1 {database table is locked: t3}}
+do_test notify1-2.3.5 {
+  catchsql { SELECT * FROM t1 } db3
+} {1 {database table is locked: t1}}
+do_test notify1-2.3.6 {
+  set lUnlock [list]
+  db  unlock_notify {lappend lUnlock db}
+  db2 unlock_notify {lappend lUnlock db2}
+} {}
+do_test notify1-2.3.7 {
+  set rc [catch { db3 unlock_notify {lappend lUnlock db3} } msg]
+  list $rc $msg
+} {1 {database is deadlocked}}
+do_test notify1-2.3.8 {
+  execsql { COMMIT }
+  set lUnlock
+} {}
+do_test notify1-2.3.9 {
+  db3 unlock_notify {lappend lUnlock db3} 
+  set lUnlock
+} {db3}
+do_test notify1-2.3.10 {
+  execsql { COMMIT } db2
+  set lUnlock
+} {db3 db}
+do_test notify1-2.3.11 {
+  execsql { COMMIT } db3
+  set lUnlock
+} {db3 db db2}
+catch { db3 close }
+catch { db2 close }
+catch { db close }
+
+#-------------------------------------------------------------------------
+# The following tests, notify1-3.* and notify1-4.*, test that callbacks 
+# can be issued when there are many (>16) connections waiting on a single 
+# unlock event.
+# 
+foreach {tn nConn} {3 20 4 76} {
+  do_test notify1-$tn.1 {
+    sqlite3 db test.db
+    execsql {
+      BEGIN;
+      INSERT INTO t1 VALUES('a', 'b');
+    }
+  } {}
+  set lUnlock [list]
+  set lUnlockFinal [list]
+  for {set ii 1} {$ii <= $nConn} {incr ii} {
+    do_test notify1-$tn.2.$ii.1 {
+      set cmd "db$ii"
+      sqlite3 $cmd test.db
+      catchsql { SELECT * FROM t1 } $cmd
+    } {1 {database table is locked: t1}}
+    do_test notify1-$tn.2.$ii.2 {
+      $cmd unlock_notify "lappend lUnlock $ii"
+    } {}
+    lappend lUnlockFinal $ii
+  }
+  do_test notify1-$tn.3 {
+    set lUnlock
+  } {}
+  do_test notify1-$tn.4 {
+    execsql {COMMIT}
+    lsort -integer $lUnlock
+  } $lUnlockFinal
+  do_test notify1-$tn.5 {
+    for {set ii 1} {$ii <= $nConn} {incr ii} {
+      "db$ii" close
+    }
+  } {}
+}
+db close
+
+#-------------------------------------------------------------------------
+# These tests, notify1-5.*, test that a malloc() failure that occurs while
+# allocating an array to use as an argument to an unlock-notify callback
+# is handled correctly.
+# 
+source $testdir/malloc_common.tcl
+do_malloc_test notify1-5 -tclprep {
+  set ::lUnlock [list]
+  execsql {
+    CREATE TABLE t1(a, b);
+    BEGIN;
+    INSERT INTO t1 VALUES('a', 'b');
+  }
+  for {set ii 1} {$ii <= 60} {incr ii} {
+    set cmd "db$ii"
+    sqlite3 $cmd test.db
+    catchsql { SELECT * FROM t1 } $cmd
+    $cmd unlock_notify "lappend ::lUnlock $ii"
+  }
+} -sqlbody {
+  COMMIT;
+} -cleanup {
+  # One of two things should have happened:
+  #
+  #   1) The transaction opened by [db] was not committed. No unlock-notify
+  #      callbacks were invoked, OR
+  #   2) The transaction opened by [db] was committed and 60 unlock-notify
+  #      callbacks were invoked.
+  #
+  do_test notify1-5.systemstate {
+    expr { ([llength $::lUnlock]==0 && [sqlite3_get_autocommit db]==0)
+        || ([llength $::lUnlock]==60 && [sqlite3_get_autocommit db]==1)
+    }
+  } {1}
+  for {set ii 1} {$ii <= 60} {incr ii} { "db$ii" close }
+}
+
+#-------------------------------------------------------------------------
+# Test cases notify1-6.* test cases where the following occur:
+# 
+#   notify1-6.1.*: Test encountering an SQLITE_LOCKED error when the
+#                  "blocking connection" has already been set by a previous
+#                  SQLITE_LOCKED.
+#
+#   notify1-6.2.*: Test encountering an SQLITE_LOCKED error when already
+#                  waiting on an unlock-notify callback.
+#
+#   notify1-6.3.*: Test that if an SQLITE_LOCKED error is encountered while
+#                  already waiting on an unlock-notify callback, and then
+#                  the blocker that caused the SQLITE_LOCKED commits its
+#                  transaction, the unlock-notify callback is not invoked.
+#
+#   notify1-6.4.*: Like 6.3.*, except that instead of the second blocker
+#                  committing its transaction, the first does. The 
+#                  unlock-notify callback is therefore invoked.
+#
+db close
+do_test notify1-6.1.1 {
+  forcedelete test.db test2.db
+  foreach conn {db db2 db3} {
+    sqlite3 $conn test.db
+    execsql { ATTACH 'test2.db' AS two } $conn
+  }
+  execsql {
+    CREATE TABLE t1(a, b);
+    CREATE TABLE two.t2(a, b);
+  }
+  execsql { 
+    BEGIN;
+    INSERT INTO t1 VALUES(1, 2);
+  } db2
+  execsql { 
+    BEGIN;
+    INSERT INTO t2 VALUES(1, 2);
+  } db3
+} {}
+do_test notify1-6.1.2 {
+  catchsql { SELECT * FROM t2 }
+} {1 {database table is locked: t2}}
+do_test notify1-6.1.3 {
+  catchsql { SELECT * FROM t1 }
+} {1 {database table is locked: t1}}
+
+do_test notify1-6.2.1 {
+  set unlocked 0
+  db unlock_notify {set unlocked 1}
+  set unlocked
+} {0}
+do_test notify1-6.2.2 {
+  catchsql { SELECT * FROM t2 }
+} {1 {database table is locked: t2}}
+do_test notify1-6.2.3 {
+  execsql { COMMIT } db2
+  set unlocked
+} {1}
+
+do_test notify1-6.3.1 {
+  execsql { 
+    BEGIN;
+    INSERT INTO t1 VALUES(3, 4);
+  } db2
+} {}
+do_test notify1-6.3.2 {
+  catchsql { SELECT * FROM t1 }
+} {1 {database table is locked: t1}}
+do_test notify1-6.3.3 {
+  set unlocked 0
+  db unlock_notify {set unlocked 1}
+  set unlocked
+} {0}
+do_test notify1-6.3.4 {
+  catchsql { SELECT * FROM t2 }
+} {1 {database table is locked: t2}}
+do_test notify1-6.3.5 {
+  execsql { COMMIT } db3
+  set unlocked
+} {0}
+
+do_test notify1-6.4.1 {
+  execsql { 
+    BEGIN;
+    INSERT INTO t2 VALUES(3, 4);
+  } db3
+  catchsql { SELECT * FROM t2 }
+} {1 {database table is locked: t2}}
+do_test notify1-6.4.2 {
+  execsql { COMMIT } db2
+  set unlocked
+} {1}
+do_test notify1-6.4.3 {
+  execsql { COMMIT } db3
+} {}
+db close
+db2 close
+db3 close
+
+#-------------------------------------------------------------------------
+# Test cases notify1-7.* tests that when more than one distinct 
+# unlock-notify function is registered, all are invoked correctly.
+#
+proc unlock_notify {} {
+  incr ::unlock_notify
+}
+do_test notify1-7.1 {
+  foreach conn {db db2 db3} {
+    sqlite3 $conn test.db
+  }
+  execsql {
+    BEGIN;
+    INSERT INTO t1 VALUES(5, 6);
+  }
+} {}
+do_test notify1-7.2 {
+  catchsql { SELECT * FROM t1 } db2
+} {1 {database table is locked: t1}}
+do_test notify1-7.3 {
+  catchsql { SELECT * FROM t1 } db3
+} {1 {database table is locked: t1}}
+do_test notify1-7.4 {
+  set unlock_notify 0
+  db2 unlock_notify unlock_notify
+  sqlite3_unlock_notify db3
+} {SQLITE_OK}
+do_test notify1-7.5 {
+  set unlock_notify
+} {0}
+do_test notify1-7.6 {
+  execsql { COMMIT }
+  set unlock_notify
+} {2}
+
+#-------------------------------------------------------------------------
+# Test cases notify1-8.* tests that the correct SQLITE_LOCKED extended 
+# error code is returned in various scenarios.
+#
+do_test notify1-8.1 {
+  execsql {
+    BEGIN;
+    INSERT INTO t1 VALUES(7, 8);
+  }
+  catchsql { SELECT * FROM t1 } db2
+} {1 {database table is locked: t1}}
+do_test notify1-8.2 {
+  sqlite3_extended_errcode db2
+} {SQLITE_LOCKED_SHAREDCACHE}
+
+do_test notify1-8.3 {
+  execsql {
+    COMMIT;
+    BEGIN EXCLUSIVE;
+  }
+  catchsql { SELECT * FROM t1 } db2
+} {1 {database schema is locked: main}}
+do_test notify1-8.4 {
+  sqlite3_extended_errcode db2
+} {SQLITE_LOCKED_SHAREDCACHE}
+
+do_test notify1-8.X {
+  execsql { COMMIT } 
+} {}
+
+#-------------------------------------------------------------------------
+# Test cases notify1-9.* test the shared-cache 'pending-lock' feature.
+#
+do_test notify1-9.1 {
+  execsql {
+    CREATE TABLE t2(a, b);
+    BEGIN;
+    SELECT * FROM t1;
+  } db2
+} {1 2 3 4 5 6 7 8}
+do_test notify1-9.2 {
+  execsql { SELECT * FROM t1 } db3
+} {1 2 3 4 5 6 7 8}
+do_test notify1-9.3 {
+  catchsql { 
+    BEGIN;
+    INSERT INTO t1 VALUES(9, 10);
+  }
+} {1 {database table is locked: t1}}
+do_test notify1-9.4 {
+  catchsql { SELECT * FROM t2 } db3
+} {1 {database table is locked}}
+do_test notify1-9.5 {
+  execsql  { COMMIT } db2
+  execsql { SELECT * FROM t2 } db3
+} {}
+do_test notify1-9.6 {
+  execsql  { COMMIT }
+} {}
+
+do_test notify1-9.7 {
+  execsql {
+    BEGIN;
+    SELECT * FROM t1;
+  } db2
+} {1 2 3 4 5 6 7 8}
+do_test notify1-9.8 {
+  execsql { SELECT * FROM t1 } db3
+} {1 2 3 4 5 6 7 8}
+do_test notify1-9.9 {
+  catchsql { 
+    BEGIN;
+    INSERT INTO t1 VALUES(9, 10);
+  }
+} {1 {database table is locked: t1}}
+do_test notify1-9.10 {
+  catchsql { SELECT * FROM t2 } db3
+} {1 {database table is locked}}
+do_test notify1-9.11 {
+  execsql  { COMMIT }
+  execsql { SELECT * FROM t2 } db3
+} {}
+do_test notify1-9.12 {
+  execsql  { COMMIT } db2
+} {}
+
+db close
+db2 close
+db3 close
+sqlite3_enable_shared_cache $::enable_shared_cache
+finish_test
diff --git a/test/notify2.test b/test/notify2.test
new file mode 100644
index 0000000000000000000000000000000000000000..12c6a537ef11450c7e31afaa18be6797d1c86eed
--- /dev/null
+++ b/test/notify2.test
@@ -0,0 +1,267 @@
+# 2009 March 04
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# $Id: notify2.test,v 1.7 2009/03/30 11:59:31 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+if {[run_thread_tests]==0} { finish_test ; return }
+ifcapable !unlock_notify||!shared_cache { finish_test ; return }
+
+# The tests in this file test the sqlite3_blocking_step() function in
+# test_thread.c. sqlite3_blocking_step() is not an SQLite API function,
+# it is just a demonstration of how the sqlite3_unlock_notify() function
+# can be used to synchronize multi-threaded access to SQLite databases
+# in shared-cache mode.
+#
+# Since the implementation of sqlite3_blocking_step() is included on the
+# website as example code, it is important to test that it works.
+#
+# notify2-1.*:
+#
+#   This test uses $nThread threads. Each thread opens the main database
+#   and attaches two other databases. Each database contains a single table.
+#
+#   Each thread repeats transactions over and over for 20 seconds. Each
+#   transaction consists of 3 operations. Each operation is either a read
+#   or a write of one of the tables. The read operations verify an invariant
+#   to make sure that things are working as expected. If an SQLITE_LOCKED
+#   error is returned the current transaction is rolled back immediately.
+#
+#   This exercise is repeated twice, once using sqlite3_step(), and the
+#   other using sqlite3_blocking_step(). The results are compared to ensure
+#   that sqlite3_blocking_step() resulted in higher transaction throughput.
+#
+
+db close
+set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
+
+# Number of threads to run simultaneously.
+#
+set nThread 6
+set nSecond 5
+
+# The Tcl script executed by each of the $nThread threads used by this test.
+#
+set ThreadProgram {
+
+  # Proc used by threads to execute SQL.
+  #
+  proc execsql_blocking {db zSql} {
+    set lRes [list]
+    set rc SQLITE_OK
+
+set sql $zSql
+
+    while {$rc=="SQLITE_OK" && $zSql ne ""} {
+      set STMT [$::xPrepare $db $zSql -1 zSql]
+      while {[set rc [$::xStep $STMT]] eq "SQLITE_ROW"} {
+        for {set i 0} {$i < [sqlite3_column_count $STMT]} {incr i} {
+          lappend lRes [sqlite3_column_text $STMT 0]
+        }
+      }
+      set rc [sqlite3_finalize $STMT]
+    }
+
+    if {$rc != "SQLITE_OK"} { error "$rc $sql [sqlite3_errmsg $db]" }
+    return $lRes
+  }
+
+  proc execsql_retry {db sql} { 
+    set msg "SQLITE_LOCKED blah..."
+    while { [string match SQLITE_LOCKED* $msg] } {
+      catch { execsql_blocking $db $sql } msg
+    }
+  }
+
+  proc select_one {args} {
+    set n [llength $args]
+    lindex $args [expr int($n*rand())]
+  }
+
+  proc opendb {} {
+    # Open a database connection. Attach the two auxillary databases.
+    set ::DB [sqlite3_open test.db]
+    execsql_retry $::DB { ATTACH 'test2.db' AS aux2; }
+    execsql_retry $::DB { ATTACH 'test3.db' AS aux3; }
+  }
+
+  opendb
+
+  #after 2000
+
+  # This loop runs for ~20 seconds.
+  #
+  set iStart [clock_seconds]
+  set nOp 0
+  set nAttempt 0
+  while { ([clock_seconds]-$iStart) < $nSecond } {
+
+    # Each transaction does 3 operations. Each operation is either a read
+    # or write of a randomly selected table (t1, t2 or t3). Set the variables
+    # $SQL(1), $SQL(2) and $SQL(3) to the SQL commands used to implement
+    # each operation.
+    #
+    for {set ii 1} {$ii <= 3} {incr ii} {
+      foreach {tbl database} [select_one {t1 main} {t2 aux2} {t3 aux3}] {}
+
+      set SQL($ii) [string map [list xxx $tbl yyy $database] [select_one {
+            SELECT 
+              (SELECT b FROM xxx WHERE a=(SELECT max(a) FROM xxx))==total(a) 
+              FROM xxx WHERE a!=(SELECT max(a) FROM xxx);
+      } {
+            DELETE FROM xxx WHERE a<(SELECT max(a)-100 FROM xxx);
+            INSERT INTO xxx SELECT NULL, total(a) FROM xxx;
+      } {
+            CREATE INDEX IF NOT EXISTS yyy.xxx_i ON xxx(b);
+      } {
+            DROP INDEX IF EXISTS yyy.xxx_i;
+      }
+      ]]
+    }
+
+    # Execute the SQL transaction.
+    #
+    incr nAttempt
+    set rc [catch { execsql_blocking $::DB "
+        BEGIN;
+          $SQL(1);
+          $SQL(2);
+          $SQL(3);
+        COMMIT;
+      "
+    } msg]
+
+    if {$rc && [string match "SQLITE_LOCKED*" $msg]
+            || [string match "SQLITE_SCHEMA*" $msg]
+    } {
+      # Hit an SQLITE_LOCKED error. Rollback the current transaction.
+      set rc [catch { execsql_blocking $::DB ROLLBACK } msg]
+      if {$rc && [string match "SQLITE_LOCKED*" $msg]} {
+        sqlite3_close $::DB
+        opendb
+      } 
+    } elseif {$rc} {
+      # Hit some other kind of error. This is a malfunction.
+      error $msg
+    } else {
+      # No error occurred. Check that any SELECT statements in the transaction
+      # returned "1". Otherwise, the invariant was false, indicating that
+      # some malfunction has occurred.
+      foreach r $msg { if {$r != 1} { puts "Invariant check failed: $msg" } }
+      incr nOp
+    }
+  }
+
+  # Close the database connection and return 0.
+  #
+  sqlite3_close $::DB
+  list $nOp $nAttempt
+}
+
+foreach {iTest xStep xPrepare} {
+  1 sqlite3_blocking_step sqlite3_blocking_prepare_v2
+  2 sqlite3_step          sqlite3_nonblocking_prepare_v2
+} {
+  forcedelete test.db test2.db test3.db
+
+  set ThreadSetup "set xStep $xStep;set xPrepare $xPrepare;set nSecond $nSecond"
+
+  # Set up the database schema used by this test. Each thread opens file
+  # test.db as the main database, then attaches files test2.db and test3.db
+  # as auxillary databases. Each file contains a single table (t1, t2 and t3, in
+  # files test.db, test2.db and test3.db, respectively). 
+  #
+  do_test notify2-$iTest.1.1 {
+    sqlite3 db test.db
+    execsql {
+      ATTACH 'test2.db' AS aux2;
+      ATTACH 'test3.db' AS aux3;
+      CREATE TABLE main.t1(a INTEGER PRIMARY KEY, b);
+      CREATE TABLE aux2.t2(a INTEGER PRIMARY KEY, b);
+      CREATE TABLE aux3.t3(a INTEGER PRIMARY KEY, b);
+      INSERT INTO t1 SELECT NULL, 0;
+      INSERT INTO t2 SELECT NULL, 0;
+      INSERT INTO t3 SELECT NULL, 0;
+    }
+  } {}
+  do_test notify2-$iTest.1.2 {
+    db close
+  } {}
+
+
+  # Launch $nThread threads. Then wait for them to finish.
+  #
+  puts "Running $xStep test for $nSecond seconds"
+  unset -nocomplain finished
+  for {set ii 0} {$ii < $nThread} {incr ii} {
+    thread_spawn finished($ii) $ThreadSetup $ThreadProgram
+  }
+  for {set ii 0} {$ii < $nThread} {incr ii} {
+    do_test notify2-$iTest.2.$ii {
+      if {![info exists finished($ii)]} { vwait finished($ii) }
+      incr anSuccess($xStep) [lindex $finished($ii) 0]
+      incr anAttempt($xStep) [lindex $finished($ii) 1]
+      expr 0
+    } {0}
+  }
+
+  # Count the total number of succesful writes.
+  do_test notify2-$iTest.3.1 {
+    sqlite3 db test.db
+    execsql {
+      ATTACH 'test2.db' AS aux2;
+      ATTACH 'test3.db' AS aux3;
+    }
+    set anWrite($xStep) [execsql {
+      SELECT (SELECT max(a) FROM t1)
+           + (SELECT max(a) FROM t2)
+           + (SELECT max(a) FROM t3)
+    }]
+    db close
+  } {}
+}
+
+# The following tests checks to make sure sqlite3_blocking_step() is
+# faster than sqlite3_step(). "Faster" in this case means uses fewer
+# CPU cycles. This is not always the same as faster in wall-clock time 
+# for this type of test. The number of CPU cycles per transaction is 
+# roughly proportional to the number of attempts made (i.e. one plus the 
+# number of SQLITE_BUSY or SQLITE_LOCKED errors that require the transaction 
+# to be retried). So this test just measures that a greater percentage of
+# transactions attempted using blocking_step() succeed.
+#
+# The blocking_step() function is almost always faster on multi-core and is
+# usually faster on single-core.  But sometimes, by chance, step() will be
+# faster on a single core, in which case the
+# following test will fail.
+#
+puts "The following test seeks to demonstrate that the sqlite3_unlock_notify()"
+puts "interface helps multi-core systems to run more efficiently.  This test"
+puts "sometimes fails on single-core machines."
+puts [array get anWrite]
+do_test notify2-3 {
+  set blocking [expr {
+    double($anSuccess(sqlite3_blocking_step)) /
+    double($anAttempt(sqlite3_blocking_step)) 
+  }]
+  set non [expr {
+    double($anSuccess(sqlite3_step)) /
+    double($anAttempt(sqlite3_step)) 
+  }]
+  puts -nonewline [format " blocking: %.1f%% non-blocking %.1f%% ..." \
+    [expr $blocking*100.0] [expr $non*100.0]]
+
+  expr {$blocking > $non}
+} {1}
+
+sqlite3_enable_shared_cache $::enable_shared_cache
+finish_test
diff --git a/test/notify3.test b/test/notify3.test
new file mode 100644
index 0000000000000000000000000000000000000000..6d65b644d18bf94a7502ea593acacaa6bd7d257c
--- /dev/null
+++ b/test/notify3.test
@@ -0,0 +1,152 @@
+# 2010 June 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the sqlite3_unlock_notify() API.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# This script only runs if shared-cache and unlock-notify are available.
+#
+ifcapable !unlock_notify||!shared_cache { 
+  finish_test 
+  return 
+}
+
+set esc [sqlite3_enable_shared_cache 1]
+
+sqlite3 db  test.db
+forcedelete test.db2 test.db2-journal test.db2-wal
+sqlite3 db2 test.db2
+
+do_test notify3-1.1 {
+  execsql { 
+    CREATE TABLE t1(a, b); 
+    INSERT INTO t1 VALUES('t1 A', 't1 B');
+  }
+} {}
+do_test notify3-1.2 {
+  execsql { 
+    CREATE TABLE t2(a, b);
+    INSERT INTO t2 VALUES('t2 A', 't2 B');
+  } db2
+} {}
+
+do_test notify3-1.3 {
+  execsql { 
+    BEGIN EXCLUSIVE;
+    INSERT INTO t2 VALUES('t2 C', 't2 D');
+  } db2
+} {}
+do_test notify3-1.4 {
+  catchsql { ATTACH 'test.db2' AS aux }
+} {0 {}}
+
+do_test notify3-1.5 {
+  catchsql { SELECT * FROM t2 }
+} {1 {database schema is locked: aux}}
+
+do_test notify3-1.6 {
+  list [sqlite3_errcode db] [sqlite3_extended_errcode db]
+} {SQLITE_LOCKED SQLITE_LOCKED_SHAREDCACHE}
+
+do_test notify3-1.7 {
+  sqlite3_extended_result_codes db 1
+  catch { set ::stmt [sqlite3_prepare_v2 db "SELECT * FROM t2" -1 tail] } msg
+  set msg
+} {(262) database schema is locked: aux}
+
+do_test notify3-1.8 {
+  set ::when 1
+  db unlock_notify { set ::res $::when }
+  set ::when 2
+  execsql { COMMIT } db2
+  set ::res
+} {2}
+do_test notify3-1.9 {
+  catchsql { SELECT * FROM t2 }
+} {0 {{t2 A} {t2 B} {t2 C} {t2 D}}}
+db close
+
+
+set err   {{1 {unable to open database: test.db2}}}
+set noerr {{0 {}}}
+
+# When a new database is attached, the connection doing the attaching 
+# tries to load any unloaded schemas for both the new database and any
+# already attached databases (including the main database). If it is
+# unable to load any such schemas, then the ATTACH statement fails.
+#
+# This block tests that if the loading of schemas as a result of an
+# ATTACH fails due to locks on the schema table held by other shared-cache
+# connections the extended error code is SQLITE_LOCKED_SHAREDCACHE and
+# it is possible to use the unlock-notify mechanism to determine when
+# the ATTACH might succeed.
+#
+# This test does not work for test-permutations that specify SQL to
+# be executed as part of the [sqlite3] command that opens the database.
+# Executing such SQL causes SQLite to load the database schema into memory 
+# earlier than expected, causing test cases to fail.
+#
+if {[presql] == ""} {
+  foreach {
+    tn
+    db1_loaded
+    db2_loaded
+    enable_extended_errors
+    result
+    error1 error2
+  } "
+    0   0 0 0   $err     SQLITE_LOCKED               SQLITE_LOCKED_SHAREDCACHE
+    1   0 0 1   $err     SQLITE_LOCKED_SHAREDCACHE   SQLITE_LOCKED_SHAREDCACHE
+    2   0 1 0   $noerr   SQLITE_OK                   SQLITE_OK
+    3   0 1 1   $noerr   SQLITE_OK                   SQLITE_OK
+    4   1 0 0   $err     SQLITE_LOCKED               SQLITE_LOCKED_SHAREDCACHE
+    5   1 0 1   $err     SQLITE_LOCKED_SHAREDCACHE   SQLITE_LOCKED_SHAREDCACHE
+    6   1 1 0   $noerr   SQLITE_OK                   SQLITE_OK
+    7   1 1 1   $noerr   SQLITE_OK                   SQLITE_OK
+  " {
+  
+    do_test notify3-2.$tn.1 {
+      catch { db1 close }
+      catch { db2 close }
+      sqlite3 db1 test.db
+      sqlite3 db2 test.db2
+  
+      sqlite3_extended_result_codes db1 $enable_extended_errors
+      sqlite3_extended_result_codes db2 $enable_extended_errors
+  
+      if { $db1_loaded } { db1 eval "SELECT * FROM sqlite_master" }
+      if { $db2_loaded } { db2 eval "SELECT * FROM sqlite_master" }
+  
+      db2 eval "BEGIN EXCLUSIVE"
+      catchsql "ATTACH 'test.db2' AS two" db1
+    } $result
+  
+    do_test notify3-2.$tn.2 {
+      list [sqlite3_errcode db1] [sqlite3_extended_errcode db1]
+    } [list $error1 $error2]
+  
+    do_test notify3-2.$tn.3 {
+      db1 unlock_notify {set invoked 1}
+      set invoked 0
+      db2 eval commit
+      set invoked
+    } [lindex $result 0]
+  }
+}
+catch { db1 close }
+catch { db2 close }
+
+
+sqlite3_enable_shared_cache $esc
+finish_test
diff --git a/test/notnull.test b/test/notnull.test
new file mode 100644
index 0000000000000000000000000000000000000000..23abe31f281d077378ba33636f517f68f866427d
--- /dev/null
+++ b/test/notnull.test
@@ -0,0 +1,608 @@
+# 2002 January 29
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests for the NOT NULL constraint.
+#
+# $Id: notnull.test,v 1.4 2006/01/17 09:35:02 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !conflict {
+  finish_test
+  return
+}
+
+do_test notnull-1.0 {
+  execsql {
+    CREATE TABLE t1 (
+      a NOT NULL,
+      b NOT NULL DEFAULT 5,
+      c NOT NULL ON CONFLICT REPLACE DEFAULT 6,
+      d NOT NULL ON CONFLICT IGNORE DEFAULT 7,
+      e NOT NULL ON CONFLICT ABORT DEFAULT 8
+    );
+    SELECT * FROM t1;
+  }
+} {}
+do_test notnull-1.1 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+    SELECT * FROM t1 order by a;
+  }
+} {0 {1 2 3 4 5}}
+do_test notnull-1.2 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT INTO t1(b,c,d,e) VALUES(2,3,4,5);
+    SELECT * FROM t1 order by a;
+  }
+} {1 {NOT NULL constraint failed: t1.a}}
+verify_ex_errcode notnull-1.2b SQLITE_CONSTRAINT_NOTNULL
+do_test notnull-1.3 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT OR IGNORE INTO t1(b,c,d,e) VALUES(2,3,4,5);
+    SELECT * FROM t1 order by a;
+  }
+} {0 {}}
+do_test notnull-1.4 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT OR REPLACE INTO t1(b,c,d,e) VALUES(2,3,4,5);
+    SELECT * FROM t1 order by a;
+  }
+} {1 {NOT NULL constraint failed: t1.a}}
+verify_ex_errcode notnull-1.4b SQLITE_CONSTRAINT_NOTNULL
+do_test notnull-1.5 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT OR ABORT INTO t1(b,c,d,e) VALUES(2,3,4,5);
+    SELECT * FROM t1 order by a;
+  }
+} {1 {NOT NULL constraint failed: t1.a}}
+verify_ex_errcode notnull-1.5b SQLITE_CONSTRAINT_NOTNULL
+do_test notnull-1.6 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT INTO t1(a,c,d,e) VALUES(1,3,4,5);
+    SELECT * FROM t1 order by a;
+  }
+} {0 {1 5 3 4 5}}
+do_test notnull-1.7 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT OR IGNORE INTO t1(a,c,d,e) VALUES(1,3,4,5);
+    SELECT * FROM t1 order by a;
+  }
+} {0 {1 5 3 4 5}}
+do_test notnull-1.8 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT OR REPLACE INTO t1(a,c,d,e) VALUES(1,3,4,5);
+    SELECT * FROM t1 order by a;
+  }
+} {0 {1 5 3 4 5}}
+do_test notnull-1.9 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT OR ABORT INTO t1(a,c,d,e) VALUES(1,3,4,5);
+    SELECT * FROM t1 order by a;
+  }
+} {0 {1 5 3 4 5}}
+do_test notnull-1.10 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,null,3,4,5);
+    SELECT * FROM t1 order by a;
+  }
+} {1 {NOT NULL constraint failed: t1.b}}
+verify_ex_errcode notnull-1.10b SQLITE_CONSTRAINT_NOTNULL
+do_test notnull-1.11 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT OR IGNORE INTO t1(a,b,c,d,e) VALUES(1,null,3,4,5);
+    SELECT * FROM t1 order by a;
+  }
+} {0 {}}
+do_test notnull-1.12 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT OR REPLACE INTO t1(a,b,c,d,e) VALUES(1,null,3,4,5);
+    SELECT * FROM t1 order by a;
+  }
+} {0 {1 5 3 4 5}}
+do_test notnull-1.13 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,2,null,4,5);
+    SELECT * FROM t1 order by a;
+  }
+} {0 {1 2 6 4 5}}
+do_test notnull-1.14 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT OR IGNORE INTO t1(a,b,c,d,e) VALUES(1,2,null,4,5);
+    SELECT * FROM t1 order by a;
+  }
+} {0 {}}
+do_test notnull-1.15 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT OR REPLACE INTO t1(a,b,c,d,e) VALUES(1,2,null,4,5);
+    SELECT * FROM t1 order by a;
+  }
+} {0 {1 2 6 4 5}}
+do_test notnull-1.16 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT OR ABORT INTO t1(a,b,c,d,e) VALUES(1,2,null,4,5);
+    SELECT * FROM t1 order by a;
+  }
+} {1 {NOT NULL constraint failed: t1.c}}
+verify_ex_errcode notnull-1.16b SQLITE_CONSTRAINT_NOTNULL
+do_test notnull-1.17 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT OR ABORT INTO t1(a,b,c,d,e) VALUES(1,2,3,null,5);
+    SELECT * FROM t1 order by a;
+  }
+} {1 {NOT NULL constraint failed: t1.d}}
+verify_ex_errcode notnull-1.17b SQLITE_CONSTRAINT_NOTNULL
+do_test notnull-1.18 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT OR ABORT INTO t1(a,b,c,e) VALUES(1,2,3,5);
+    SELECT * FROM t1 order by a;
+  }
+} {0 {1 2 3 7 5}}
+do_test notnull-1.19 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d) VALUES(1,2,3,4);
+    SELECT * FROM t1 order by a;
+  }
+} {0 {1 2 3 4 8}}
+do_test notnull-1.20 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,null);
+    SELECT * FROM t1 order by a;
+  }
+} {1 {NOT NULL constraint failed: t1.e}}
+verify_ex_errcode notnull-1.20b SQLITE_CONSTRAINT_NOTNULL
+do_test notnull-1.21 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT OR REPLACE INTO t1(e,d,c,b,a) VALUES(1,2,3,null,5);
+    SELECT * FROM t1 order by a;
+  }
+} {0 {5 5 3 2 1}}
+
+do_test notnull-2.1 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES(1,2,3,4,5);
+    UPDATE t1 SET a=null;
+    SELECT * FROM t1 ORDER BY a;
+  }
+} {1 {NOT NULL constraint failed: t1.a}}
+verify_ex_errcode notnull-2.1b SQLITE_CONSTRAINT_NOTNULL
+do_test notnull-2.2 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES(1,2,3,4,5);
+    UPDATE OR REPLACE t1 SET a=null;
+    SELECT * FROM t1 ORDER BY a;
+  }
+} {1 {NOT NULL constraint failed: t1.a}}
+verify_ex_errcode notnull-2.2b SQLITE_CONSTRAINT_NOTNULL
+do_test notnull-2.3 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES(1,2,3,4,5);
+    UPDATE OR IGNORE t1 SET a=null;
+    SELECT * FROM t1 ORDER BY a;
+  }
+} {0 {1 2 3 4 5}}
+do_test notnull-2.4 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES(1,2,3,4,5);
+    UPDATE OR ABORT t1 SET a=null;
+    SELECT * FROM t1 ORDER BY a;
+  }
+} {1 {NOT NULL constraint failed: t1.a}}
+verify_ex_errcode notnull-2.4b SQLITE_CONSTRAINT_NOTNULL
+do_test notnull-2.5 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES(1,2,3,4,5);
+    UPDATE t1 SET b=null;
+    SELECT * FROM t1 ORDER BY a;
+  }
+} {1 {NOT NULL constraint failed: t1.b}}
+verify_ex_errcode notnull-2.6b SQLITE_CONSTRAINT_NOTNULL
+do_test notnull-2.6 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES(1,2,3,4,5);
+    UPDATE OR REPLACE t1 SET b=null, d=e, e=d;
+    SELECT * FROM t1 ORDER BY a;
+  }
+} {0 {1 5 3 5 4}}
+do_test notnull-2.7 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES(1,2,3,4,5);
+    UPDATE OR IGNORE t1 SET b=null, d=e, e=d;
+    SELECT * FROM t1 ORDER BY a;
+  }
+} {0 {1 2 3 4 5}}
+do_test notnull-2.8 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES(1,2,3,4,5);
+    UPDATE t1 SET c=null, d=e, e=d;
+    SELECT * FROM t1 ORDER BY a;
+  }
+} {0 {1 2 6 5 4}}
+do_test notnull-2.9 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES(1,2,3,4,5);
+    UPDATE t1 SET d=null, a=b, b=a;
+    SELECT * FROM t1 ORDER BY a;
+  }
+} {0 {1 2 3 4 5}}
+do_test notnull-2.10 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES(1,2,3,4,5);
+    UPDATE t1 SET e=null, a=b, b=a;
+    SELECT * FROM t1 ORDER BY a;
+  }
+} {1 {NOT NULL constraint failed: t1.e}}
+verify_ex_errcode notnull-2.10b SQLITE_CONSTRAINT_NOTNULL
+
+do_test notnull-3.0 {
+  execsql {
+    CREATE INDEX t1a ON t1(a);
+    CREATE INDEX t1b ON t1(b);
+    CREATE INDEX t1c ON t1(c);
+    CREATE INDEX t1d ON t1(d);
+    CREATE INDEX t1e ON t1(e);
+    CREATE INDEX t1abc ON t1(a,b,c);
+  }
+} {}
+do_test notnull-3.1 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+    SELECT * FROM t1 order by a;
+  }
+} {0 {1 2 3 4 5}}
+do_test notnull-3.2 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT INTO t1(b,c,d,e) VALUES(2,3,4,5);
+    SELECT * FROM t1 order by a;
+  }
+} {1 {NOT NULL constraint failed: t1.a}}
+verify_ex_errcode notnull-3.2b SQLITE_CONSTRAINT_NOTNULL
+do_test notnull-3.3 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT OR IGNORE INTO t1(b,c,d,e) VALUES(2,3,4,5);
+    SELECT * FROM t1 order by a;
+  }
+} {0 {}}
+do_test notnull-3.4 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT OR REPLACE INTO t1(b,c,d,e) VALUES(2,3,4,5);
+    SELECT * FROM t1 order by a;
+  }
+} {1 {NOT NULL constraint failed: t1.a}}
+verify_ex_errcode notnull-3.4b SQLITE_CONSTRAINT_NOTNULL
+do_test notnull-3.5 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT OR ABORT INTO t1(b,c,d,e) VALUES(2,3,4,5);
+    SELECT * FROM t1 order by a;
+  }
+} {1 {NOT NULL constraint failed: t1.a}}
+verify_ex_errcode notnull-3.5b SQLITE_CONSTRAINT_NOTNULL
+do_test notnull-3.6 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT INTO t1(a,c,d,e) VALUES(1,3,4,5);
+    SELECT * FROM t1 order by a;
+  }
+} {0 {1 5 3 4 5}}
+do_test notnull-3.7 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT OR IGNORE INTO t1(a,c,d,e) VALUES(1,3,4,5);
+    SELECT * FROM t1 order by a;
+  }
+} {0 {1 5 3 4 5}}
+do_test notnull-3.8 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT OR REPLACE INTO t1(a,c,d,e) VALUES(1,3,4,5);
+    SELECT * FROM t1 order by a;
+  }
+} {0 {1 5 3 4 5}}
+do_test notnull-3.9 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT OR ABORT INTO t1(a,c,d,e) VALUES(1,3,4,5);
+    SELECT * FROM t1 order by a;
+  }
+} {0 {1 5 3 4 5}}
+do_test notnull-3.10 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,null,3,4,5);
+    SELECT * FROM t1 order by a;
+  }
+} {1 {NOT NULL constraint failed: t1.b}}
+verify_ex_errcode notnull-3.10b SQLITE_CONSTRAINT_NOTNULL
+do_test notnull-3.11 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT OR IGNORE INTO t1(a,b,c,d,e) VALUES(1,null,3,4,5);
+    SELECT * FROM t1 order by a;
+  }
+} {0 {}}
+do_test notnull-3.12 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT OR REPLACE INTO t1(a,b,c,d,e) VALUES(1,null,3,4,5);
+    SELECT * FROM t1 order by a;
+  }
+} {0 {1 5 3 4 5}}
+do_test notnull-3.13 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,2,null,4,5);
+    SELECT * FROM t1 order by a;
+  }
+} {0 {1 2 6 4 5}}
+do_test notnull-3.14 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT OR IGNORE INTO t1(a,b,c,d,e) VALUES(1,2,null,4,5);
+    SELECT * FROM t1 order by a;
+  }
+} {0 {}}
+do_test notnull-3.15 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT OR REPLACE INTO t1(a,b,c,d,e) VALUES(1,2,null,4,5);
+    SELECT * FROM t1 order by a;
+  }
+} {0 {1 2 6 4 5}}
+do_test notnull-3.16 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT OR ABORT INTO t1(a,b,c,d,e) VALUES(1,2,null,4,5);
+    SELECT * FROM t1 order by a;
+  }
+} {1 {NOT NULL constraint failed: t1.c}}
+verify_ex_errcode notnull-3.16b SQLITE_CONSTRAINT_NOTNULL
+do_test notnull-3.17 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT OR ABORT INTO t1(a,b,c,d,e) VALUES(1,2,3,null,5);
+    SELECT * FROM t1 order by a;
+  }
+} {1 {NOT NULL constraint failed: t1.d}}
+verify_ex_errcode notnull-3.17b SQLITE_CONSTRAINT_NOTNULL
+do_test notnull-3.18 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT OR ABORT INTO t1(a,b,c,e) VALUES(1,2,3,5);
+    SELECT * FROM t1 order by a;
+  }
+} {0 {1 2 3 7 5}}
+do_test notnull-3.19 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d) VALUES(1,2,3,4);
+    SELECT * FROM t1 order by a;
+  }
+} {0 {1 2 3 4 8}}
+do_test notnull-3.20 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,null);
+    SELECT * FROM t1 order by a;
+  }
+} {1 {NOT NULL constraint failed: t1.e}}
+verify_ex_errcode notnull-3.20b SQLITE_CONSTRAINT_NOTNULL
+do_test notnull-3.21 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT OR REPLACE INTO t1(e,d,c,b,a) VALUES(1,2,3,null,5);
+    SELECT * FROM t1 order by a;
+  }
+} {0 {5 5 3 2 1}}
+
+do_test notnull-4.1 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES(1,2,3,4,5);
+    UPDATE t1 SET a=null;
+    SELECT * FROM t1 ORDER BY a;
+  }
+} {1 {NOT NULL constraint failed: t1.a}}
+verify_ex_errcode notnull-4.1b SQLITE_CONSTRAINT_NOTNULL
+do_test notnull-4.2 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES(1,2,3,4,5);
+    UPDATE OR REPLACE t1 SET a=null;
+    SELECT * FROM t1 ORDER BY a;
+  }
+} {1 {NOT NULL constraint failed: t1.a}}
+verify_ex_errcode notnull-4.2b SQLITE_CONSTRAINT_NOTNULL
+do_test notnull-4.3 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES(1,2,3,4,5);
+    UPDATE OR IGNORE t1 SET a=null;
+    SELECT * FROM t1 ORDER BY a;
+  }
+} {0 {1 2 3 4 5}}
+do_test notnull-4.4 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES(1,2,3,4,5);
+    UPDATE OR ABORT t1 SET a=null;
+    SELECT * FROM t1 ORDER BY a;
+  }
+} {1 {NOT NULL constraint failed: t1.a}}
+verify_ex_errcode notnull-4.4b SQLITE_CONSTRAINT_NOTNULL
+do_test notnull-4.5 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES(1,2,3,4,5);
+    UPDATE t1 SET b=null;
+    SELECT * FROM t1 ORDER BY a;
+  }
+} {1 {NOT NULL constraint failed: t1.b}}
+verify_ex_errcode notnull-4.5b SQLITE_CONSTRAINT_NOTNULL
+do_test notnull-4.6 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES(1,2,3,4,5);
+    UPDATE OR REPLACE t1 SET b=null, d=e, e=d;
+    SELECT * FROM t1 ORDER BY a;
+  }
+} {0 {1 5 3 5 4}}
+do_test notnull-4.7 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES(1,2,3,4,5);
+    UPDATE OR IGNORE t1 SET b=null, d=e, e=d;
+    SELECT * FROM t1 ORDER BY a;
+  }
+} {0 {1 2 3 4 5}}
+do_test notnull-4.8 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES(1,2,3,4,5);
+    UPDATE t1 SET c=null, d=e, e=d;
+    SELECT * FROM t1 ORDER BY a;
+  }
+} {0 {1 2 6 5 4}}
+do_test notnull-4.9 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES(1,2,3,4,5);
+    UPDATE t1 SET d=null, a=b, b=a;
+    SELECT * FROM t1 ORDER BY a;
+  }
+} {0 {1 2 3 4 5}}
+do_test notnull-4.10 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES(1,2,3,4,5);
+    UPDATE t1 SET e=null, a=b, b=a;
+    SELECT * FROM t1 ORDER BY a;
+  }
+} {1 {NOT NULL constraint failed: t1.e}}
+verify_ex_errcode notnull-4.10b SQLITE_CONSTRAINT_NOTNULL
+
+# Test that bug 29ab7be99f is fixed.
+#
+do_test notnull-5.1 {
+  execsql {
+    DROP TABLE IF EXISTS t1;
+    CREATE TABLE t1(a, b NOT NULL);
+    CREATE TABLE t2(c, d);
+    INSERT INTO t2 VALUES(3, 4);
+    INSERT INTO t2 VALUES(5, NULL);
+  }
+}  {}
+do_test notnull-5.2 {
+  catchsql {
+    INSERT INTO t1 VALUES(1, 2);
+    INSERT INTO t1 SELECT * FROM t2;
+  }
+} {1 {NOT NULL constraint failed: t1.b}}
+verify_ex_errcode notnull-5.2b SQLITE_CONSTRAINT_NOTNULL
+do_test notnull-5.3 {
+  execsql { SELECT * FROM t1 }
+} {1 2}
+do_test notnull-5.4 {
+  catchsql {
+    DELETE FROM t1;
+    BEGIN;
+      INSERT INTO t1 VALUES(1, 2);
+      INSERT INTO t1 SELECT * FROM t2;
+    COMMIT;
+  }
+} {1 {NOT NULL constraint failed: t1.b}}
+verify_ex_errcode notnull-5.4b SQLITE_CONSTRAINT_NOTNULL
+do_test notnull-5.5 {
+  execsql { SELECT * FROM t1 }
+} {1 2}
+
+#-------------------------------------------------------------------------
+# Check that UNIQUE NOT NULL indexes are always recognized as such.
+#
+proc uses_op_next {sql} {
+  db eval "EXPLAIN $sql" a {
+    if {$a(opcode)=="Next"} { return 1 }
+  }
+  return 0
+}
+
+proc do_uses_op_next_test {tn sql res} {
+  uplevel [list do_test $tn [list uses_op_next $sql] $res]
+}
+
+reset_db
+do_execsql_test notnull-6.0 {
+  CREATE TABLE t1(a UNIQUE);
+  CREATE TABLE t2(a NOT NULL UNIQUE);
+  CREATE TABLE t3(a UNIQUE NOT NULL);
+  CREATE TABLE t4(a NOT NULL);
+  CREATE UNIQUE INDEX t4a ON t4(a);
+
+  CREATE TABLE t5(a PRIMARY KEY);
+  CREATE TABLE t6(a PRIMARY KEY NOT NULL);
+  CREATE TABLE t7(a NOT NULL PRIMARY KEY);
+  CREATE TABLE t8(a PRIMARY KEY) WITHOUT ROWID;
+
+  CREATE TABLE t9(a PRIMARY KEY UNIQUE NOT NULL);
+  CREATE TABLE t10(a UNIQUE PRIMARY KEY NOT NULL);
+}
+
+do_uses_op_next_test notnull-6.1 "SELECT * FROM t1 WHERE a IS ?" 1
+do_uses_op_next_test notnull-6.2 "SELECT * FROM t2 WHERE a IS ?" 0
+do_uses_op_next_test notnull-6.3 "SELECT * FROM t3 WHERE a IS ?" 0
+do_uses_op_next_test notnull-6.4 "SELECT * FROM t4 WHERE a IS ?" 0
+
+do_uses_op_next_test notnull-6.5 "SELECT * FROM t5 WHERE a IS ?" 1
+do_uses_op_next_test notnull-6.6 "SELECT * FROM t6 WHERE a IS ?" 0
+do_uses_op_next_test notnull-6.7 "SELECT * FROM t7 WHERE a IS ?" 0
+do_uses_op_next_test notnull-6.8 "SELECT * FROM t8 WHERE a IS ?" 0
+
+do_uses_op_next_test notnull-6.9 "SELECT * FROM t8 WHERE a IS ?" 0
+do_uses_op_next_test notnull-6.10 "SELECT * FROM t8 WHERE a IS ?" 0
+
+finish_test
diff --git a/test/notnull2.test b/test/notnull2.test
new file mode 100644
index 0000000000000000000000000000000000000000..09161efbdbf5f4dc016f083e386018bcab90055c
--- /dev/null
+++ b/test/notnull2.test
@@ -0,0 +1,122 @@
+# 2021 February 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing optimizations associated with "IS NULL"
+# and "IS NOT NULL" operators on columns with NOT NULL constraints.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix notnull2
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b);
+  CREATE TABLE t2(c, d NOT NULL);
+
+  WITH x(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM x WHERE i<1000
+  )
+  INSERT INTO t1 SELECT i, i FROM x;
+  INSERT INTO t2 SELECT * FROM t1;
+}
+
+
+do_vmstep_test 1.1.1 {
+  SELECT * FROM t1 LEFT JOIN t2 WHERE a=c AND d IS NULL;
+} 100 {}
+do_vmstep_test 1.1.2 {
+  SELECT * FROM t1 LEFT JOIN t2 WHERE a=c AND c IS NULL;
+} +1000 {}
+
+do_vmstep_test 1.2.1 {
+  SELECT * FROM ( SELECT * FROM t2 ) WHERE d IS NULL
+} 100 {}
+do_vmstep_test 1.2.2 {
+  SELECT * FROM ( SELECT * FROM t2 ) WHERE c IS NULL
+} +1000 {}
+
+do_vmstep_test 1.3.1 {
+  SELECT * FROM t2 WHERE d IS NULL
+} 100 {}
+do_vmstep_test 1.3.2 {
+  SELECT * FROM t2 WHERE c IS NULL
+} +1000 {}
+
+do_vmstep_test 1.4.1 {
+  SELECT (d IS NOT NULL) FROM t2 WHERE 0==( d IS NOT NULL )
+} 100 {}
+do_vmstep_test 1.4.2 {
+  SELECT * FROM t2 WHERE 0==( c IS NOT NULL )
+} +1000 {}
+
+do_vmstep_test 1.5.1 {
+  SELECT count(*) FROM t2 WHERE EXISTS(
+    SELECT 1 FROM t1 WHERE t1.a=450 AND t2.d IS NULL
+  )
+} 7000 {0}
+do_vmstep_test 1.5.2 {
+  SELECT count(*) FROM t2 WHERE EXISTS(
+    SELECT 1 FROM t1 WHERE t1.a=450 AND t2.c IS NULL
+  )
+} +8000 {0}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 2.0 {
+  CREATE TABLE T1(a INTEGER PRIMARY KEY, b);
+  CREATE TABLE T3(k, v);
+}
+
+do_execsql_test 2.1 {
+  SELECT * FROM (SELECT a, b FROM t1) LEFT JOIN t3 ON a IS NULL;
+}
+
+
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 3.0 {
+  CREATE TABLE t0(c0 PRIMARY KEY);
+  INSERT INTO t0(c0) VALUES (0);
+}
+do_execsql_test 3.1 {
+  SELECT * FROM t0 WHERE ((c0 NOT NULL) AND 1) OR (c0 == NULL);
+} {0}
+
+# 2021-07-22 https://sqlite.org/forum/forumpost/2078b7edd2
+#
+reset_db
+do_execsql_test 4.0 {
+  SELECT *, '/'
+  FROM (
+      SELECT NULL val FROM (SELECT 1)
+      UNION ALL
+      SELECT 'missing' FROM (SELECT 1)
+  ) a
+  LEFT JOIN (SELECT 1)
+      ON a.val IS NULL;
+} {{} 1 / missing {} /}
+do_execsql_test 4.1 {
+  CREATE TABLE t1(a INT);
+  INSERT INTO t1(a) VALUES(1);
+  CREATE TABLE t2(b INT);
+  SELECT * FROM (SELECT 3 AS c FROM t1) AS t3 LEFT JOIN t2 ON c IS NULL;
+} {3 {}}
+
+# 2024-03-08 https://sqlite.org/forum/forumpost/440f2a2f17
+#
+reset_db
+do_execsql_test 5.0 {
+  CREATE TABLE t1(a INT NOT NULL);
+  SELECT a IS NULL, a IS NOT NULL, count(*) FROM t1;
+} {1 0 0}
+
+finish_test
diff --git a/test/notnullfault.test b/test/notnullfault.test
new file mode 100644
index 0000000000000000000000000000000000000000..0db8e4adbd42d9a54ef9e8285b103e3a15b144e7
--- /dev/null
+++ b/test/notnullfault.test
@@ -0,0 +1,55 @@
+# 2021 February 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing optimizations associated with "IS NULL"
+# and "IS NOT NULL" operators on columns with NOT NULL constraints.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix notnullfault
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b);
+  CREATE TABLE t2(c, d NOT NULL);
+}
+faultsim_save_and_close
+
+do_faultsim_test 1 -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql {
+    SELECT * FROM t2 WHERE d NOT NULL
+  }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 2.0 {
+  CREATE TABLE t1(a, b, c); 
+  CREATE TABLE t2(a, b, c, PRIMARY KEY(a, b, c)) WITHOUT ROWID;
+}
+faultsim_save_and_close
+
+do_faultsim_test 2.1 -faults oom-t* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql {
+    SELECT dense_rank() OVER win FROM t2
+    WINDOW win AS (ORDER BY c IS NULL)
+  }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+finish_test
diff --git a/test/null.test b/test/null.test
new file mode 100644
index 0000000000000000000000000000000000000000..5057e2537e951a739c7a053fea973af1a36a58df
--- /dev/null
+++ b/test/null.test
@@ -0,0 +1,307 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests for proper treatment of the special
+# value NULL.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Create a table and some data to work with.
+#
+do_test null-1.0 {
+  execsql {
+    begin;
+    create table t1(a,b,c);
+    insert into t1 values(1,0,0);
+    insert into t1 values(2,0,1);
+    insert into t1 values(3,1,0);
+    insert into t1 values(4,1,1);
+    insert into t1 values(5,null,0);
+    insert into t1 values(6,null,1);
+    insert into t1 values(7,null,null);
+    commit;
+    select * from t1;
+  }
+} {1 0 0 2 0 1 3 1 0 4 1 1 5 {} 0 6 {} 1 7 {} {}}
+
+# Check for how arithmetic expressions handle NULL
+#
+do_test null-1.1 {
+  execsql {
+    select ifnull(a+b,99) from t1;
+  }
+} {1 2 4 5 99 99 99}
+do_test null-1.2 {
+  execsql {
+    select ifnull(b*c,99) from t1;
+  }
+} {0 0 0 1 99 99 99}
+
+# Check to see how the CASE expression handles NULL values.  The
+# first WHEN for which the test expression is TRUE is selected.
+# FALSE and UNKNOWN test expressions are skipped.
+#
+do_test null-2.1 {
+  execsql {
+    select ifnull(case when b<>0 then 1 else 0 end, 99) from t1;
+  }
+} {0 0 1 1 0 0 0}
+do_test null-2.2 {
+  execsql {
+    select ifnull(case when not b<>0 then 1 else 0 end, 99) from t1;
+  }
+} {1 1 0 0 0 0 0}
+do_test null-2.3 {
+  execsql {
+    select ifnull(case when b<>0 and c<>0 then 1 else 0 end, 99) from t1;
+  }
+} {0 0 0 1 0 0 0}
+do_test null-2.4 {
+  execsql {
+    select ifnull(case when not (b<>0 and c<>0) then 1 else 0 end, 99) from t1;
+  }
+} {1 1 1 0 1 0 0}
+do_test null-2.5 {
+  execsql {
+    select ifnull(case when b<>0 or c<>0 then 1 else 0 end, 99) from t1;
+  }
+} {0 1 1 1 0 1 0}
+do_test null-2.6 {
+  execsql {
+    select ifnull(case when not (b<>0 or c<>0) then 1 else 0 end, 99) from t1;
+  }
+} {1 0 0 0 0 0 0}
+do_test null-2.7 {
+  execsql {
+    select ifnull(case b when c then 1 else 0 end, 99) from t1;
+  }
+} {1 0 0 1 0 0 0}
+do_test null-2.8 {
+  execsql {
+    select ifnull(case c when b then 1 else 0 end, 99) from t1;
+  }
+} {1 0 0 1 0 0 0}
+
+# Check to see that NULL values are ignored in aggregate functions.
+#
+do_test null-3.1 {
+  execsql {
+    select count(*), count(b), count(c), sum(b), sum(c), 
+           avg(b), avg(c), min(b), max(b) from t1;
+  }
+} {7 4 6 2 3 0.5 0.5 0 1}
+
+# The sum of zero entries is a NULL, but the total of zero entries is 0.
+#
+do_test null-3.2 {
+  execsql {
+    SELECT sum(b), total(b) FROM t1 WHERE b<0
+  }
+} {{} 0.0}
+
+# Check to see how WHERE clauses handle NULL values.  A NULL value
+# is the same as UNKNOWN.  The WHERE clause should only select those
+# rows that are TRUE.  FALSE and UNKNOWN rows are rejected.
+#
+do_test null-4.1 {
+  execsql {
+    select a from t1 where b<10
+  }
+} {1 2 3 4}
+do_test null-4.2 {
+  execsql {
+    select a from t1 where not b>10
+  }
+} {1 2 3 4}
+do_test null-4.3 {
+  execsql {
+    select a from t1 where b<10 or c=1;
+  }
+} {1 2 3 4 6}
+do_test null-4.4 {
+  execsql {
+    select a from t1 where b<10 and c=1;
+  }
+} {2 4}
+do_test null-4.5 {
+  execsql {
+    select a from t1 where not (b<10 and c=1);
+  }
+} {1 3 5}
+
+# The DISTINCT keyword on a SELECT statement should treat NULL values
+# as distinct
+#
+do_test null-5.1 {
+  execsql {
+    select distinct b from t1 order by b;
+  }
+} {{} 0 1}
+
+# A UNION to two queries should treat NULL values
+# as distinct.
+#
+# (Later:)  We also take this opportunity to test the ability
+# of an ORDER BY clause to bind to either SELECT of a UNION.
+# The left-most SELECT is preferred.  In standard SQL, only
+# the left SELECT can be used.  The ability to match an ORDER
+# BY term to the right SELECT is an SQLite extension.
+#
+ifcapable compound {
+  do_test null-6.1 {
+    execsql {
+      select b from t1 union select c from t1 order by b;
+    }
+  } {{} 0 1}
+  do_test null-6.2 {
+    execsql {
+      select b from t1 union select c from t1 order by 1;
+    }
+  } {{} 0 1}
+  do_test null-6.3 {
+    execsql {
+      select b from t1 union select c from t1 order by t1.b;
+    }
+  } {{} 0 1}
+  do_test null-6.4 {
+    execsql {
+      select b from t1 union select c from t1 order by main.t1.b;
+    }
+  } {{} 0 1}
+  do_test null-6.5 {
+    catchsql {
+      select b from t1 union select c from t1 order by t1.a;
+    }
+  } {1 {1st ORDER BY term does not match any column in the result set}}
+  do_test null-6.6 {
+    catchsql {
+      select b from t1 union select c from t1 order by main.t1.a;
+    }
+  } {1 {1st ORDER BY term does not match any column in the result set}}
+} ;# ifcapable compound
+
+# The UNIQUE constraint only applies to non-null values
+#
+ifcapable conflict {
+do_test null-7.1 {
+    execsql {
+      create table t2(a, b unique on conflict ignore);
+      insert into t2 values(1,1);
+      insert into t2 values(2,null);
+      insert into t2 values(3,null);
+      insert into t2 values(4,1);
+      select a from t2;
+    }
+  } {1 2 3}
+  do_test null-7.2 {
+    execsql {
+      create table t3(a, b, c, unique(b,c) on conflict ignore);
+      insert into t3 values(1,1,1);
+      insert into t3 values(2,null,1);
+      insert into t3 values(3,null,1);
+      insert into t3 values(4,1,1);
+      select a from t3;
+    }
+  } {1 2 3}
+}
+
+# Ticket #461 - Make sure nulls are handled correctly when doing a
+# lookup using an index.
+#
+do_test null-8.1 {
+  execsql {
+    CREATE TABLE t4(x,y);
+    INSERT INTO t4 VALUES(1,11);
+    INSERT INTO t4 VALUES(2,NULL);
+    SELECT x FROM t4 WHERE y=NULL;
+  }
+} {}
+ifcapable subquery {
+  do_test null-8.2 {
+    execsql {
+      SELECT x FROM t4 WHERE y IN (33,NULL);
+    }
+  } {}
+}
+do_test null-8.3 {
+  execsql {
+    SELECT x FROM t4 WHERE y<33 ORDER BY x;
+  }
+} {1}
+do_test null-8.4 {
+  execsql {
+    SELECT x FROM t4 WHERE y>6 ORDER BY x;
+  }
+} {1}
+do_test null-8.5 {
+  execsql {
+    SELECT x FROM t4 WHERE y!=33 ORDER BY x;
+  }
+} {1}
+do_test null-8.11 {
+  execsql {
+    CREATE INDEX t4i1 ON t4(y);
+    SELECT x FROM t4 WHERE y=NULL;
+  }
+} {}
+ifcapable subquery {
+  do_test null-8.12 {
+    execsql {
+      SELECT x FROM t4 WHERE y IN (33,NULL);
+    }
+  } {}
+}
+do_test null-8.13 {
+  execsql {
+    SELECT x FROM t4 WHERE y<33 ORDER BY x;
+  }
+} {1}
+do_test null-8.14 {
+  execsql {
+    SELECT x FROM t4 WHERE y>6 ORDER BY x;
+  }
+} {1}
+do_test null-8.15 {
+  execsql {
+    SELECT x FROM t4 WHERE y!=33 ORDER BY x;
+  }
+} {1}
+
+do_execsql_test null-9.1 {
+  CREATE TABLE t5(a, b, c);
+  CREATE UNIQUE INDEX t5ab ON t5(a, b);
+
+  INSERT INTO t5 VALUES(1, NULL, 'one');
+  INSERT INTO t5 VALUES(1, NULL, 'i');
+  INSERT INTO t5 VALUES(NULL, 'x', 'two');
+  INSERT INTO t5 VALUES(NULL, 'x', 'ii');
+}
+
+do_execsql_test null-9.2 {
+  SELECT * FROM t5 WHERE a = 1 AND b IS NULL;
+} {1 {} one 1 {} i}
+
+do_execsql_test null-9.3 {
+  SELECT * FROM t5 WHERE a IS NULL AND b = 'x';
+} {{} x two {} x ii}
+
+# 2020-09-30 ticket 5c4e7aa793943803
+reset_db
+do_execsql_test null-10.1 {
+  CREATE TABLE t0(c0 PRIMARY KEY DESC);
+  INSERT INTO t0(c0) VALUES (0);
+  SELECT * FROM t0 WHERE t0.c0 > NULL;
+} {}
+
+finish_test
diff --git a/test/nulls1.test b/test/nulls1.test
new file mode 100644
index 0000000000000000000000000000000000000000..c44d0af25139c7113c0127872401c44242d213e8
--- /dev/null
+++ b/test/nulls1.test
@@ -0,0 +1,343 @@
+# 2019 August 10
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix nulls1
+
+do_execsql_test 1.0 {
+  DROP TABLE IF EXISTS t3;
+  CREATE TABLE t3(a INTEGER);
+  INSERT INTO t3 VALUES(NULL), (10), (30), (20), (NULL);
+} {}
+
+for {set a 0} {$a < 3} {incr a} {
+  foreach {tn limit} {
+    1 ""
+    2 "LIMIT 10"
+  } {
+    do_execsql_test 1.$a.$tn.1 "
+      SELECT a FROM t3 ORDER BY a nULLS FIRST $limit
+    " {{}   {}   10   20   30}
+    
+    do_execsql_test 1.$a.$tn.2 "
+      SELECT a FROM t3 ORDER BY a nULLS LAST $limit
+    " {10   20   30   {}   {}}
+    
+    do_execsql_test 1.$a.$tn.3 "
+      SELECT a FROM t3 ORDER BY a DESC nULLS FIRST $limit
+    " {{}   {}   30   20   10}
+    
+    do_execsql_test 1.$a.$tn.4 "
+      SELECT a FROM t3 ORDER BY a DESC nULLS LAST $limit
+    " {30   20   10   {}   {}}
+  }
+
+  switch $a {
+    0 {
+      execsql { CREATE INDEX i1 ON t3(a) }
+    }
+    1 {
+      execsql { DROP INDEX i1 ; CREATE INDEX i1 ON t3(a DESC) }
+    }
+  }
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 2.0 {
+  CREATE TABLE t2(a, b, c);
+  CREATE INDEX i2 ON t2(a, b);
+  INSERT INTO t2 VALUES(1, 1, 1);
+  INSERT INTO t2 VALUES(1, NULL, 2);
+  INSERT INTO t2 VALUES(1, NULL, 3);
+  INSERT INTO t2 VALUES(1, 4, 4);
+}
+
+do_execsql_test 2.1 {
+  SELECT * FROM t2 WHERE a=1 ORDER BY b NULLS LAST
+} {
+  1 1 1    1 4 4   1 {} 2   1 {} 3
+}
+
+do_execsql_test 2.2 {
+  SELECT * FROM t2 WHERE a=1 ORDER BY b DESC NULLS FIRST
+} {
+  1 {} 3
+  1 {} 2     
+  1 4 4     
+  1 1 1
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 3.0 {
+  CREATE TABLE t1(a, b, c, d, UNIQUE (b));
+}
+foreach {tn sql err}  {
+  1 { CREATE INDEX i1 ON t1(a ASC NULLS LAST) }           LAST
+  2 { CREATE INDEX i1 ON t1(a ASC NULLS FIRST) }          FIRST
+  3 { CREATE INDEX i1 ON t1(a, b ASC NULLS LAST) }        LAST
+  4 { CREATE INDEX i1 ON t1(a, b ASC NULLS FIRST) }       FIRST
+  5 { CREATE INDEX i1 ON t1(a DESC NULLS LAST) }          LAST
+  6 { CREATE INDEX i1 ON t1(a DESC NULLS FIRST) }         FIRST
+  7 { CREATE INDEX i1 ON t1(a, b DESC NULLS LAST) }       LAST
+  8 { CREATE INDEX i1 ON t1(a, b DESC NULLS FIRST) }      FIRST
+  9  { CREATE TABLE t2(a, b, PRIMARY KEY(a DESC, b NULLS FIRST)) } FIRST
+  10 { CREATE TABLE t2(a, b, UNIQUE(a DESC NULLS FIRST, b)) }      FIRST
+  11 { INSERT INTO t1 VALUES(1, 2, 3, 4)
+          ON CONFLICT (b DESC NULLS LAST) DO UPDATE SET a = a+1 } LAST
+  12 {
+    CREATE TRIGGER tr1 AFTER INSERT ON t1 BEGIN
+      INSERT INTO t1 VALUES(1, 2, 3, 4)
+      ON CONFLICT (b DESC NULLS FIRST) DO UPDATE SET a = a+1;
+    END
+  } FIRST
+} {
+  do_catchsql_test 3.1.$tn $sql "1 {unsupported use of NULLS $err}"
+}
+
+do_execsql_test 3.2 {
+  CREATE TABLE first(nulls, last);
+  INSERT INTO first(last, nulls) VALUES(100,200), (300,400), (200,300);
+  SELECT * FROM first ORDER BY nulls;
+} {
+  200 100
+  300 200
+  400 300
+}
+
+#-------------------------------------------------------------------------
+#
+ifcapable vtab {
+  register_echo_module db
+  do_execsql_test 4.0 {
+    CREATE TABLE tx(a INTEGER PRIMARY KEY, b, c);
+    CREATE INDEX i1 ON tx(b);
+    INSERT INTO tx VALUES(1, 1, 1);
+    INSERT INTO tx VALUES(2, NULL, 2);
+    INSERT INTO tx VALUES(3, 3, 3);
+    INSERT INTO tx VALUES(4, NULL, 4);
+    INSERT INTO tx VALUES(5, 5, 5);
+    CREATE VIRTUAL TABLE te USING echo(tx);
+  }
+
+  do_execsql_test 4.1 {
+    SELECT * FROM tx ORDER BY b NULLS FIRST;
+  } {2 {} 2  4 {} 4  1 1 1  3 3 3  5 5 5}
+  do_execsql_test 4.2 {
+    SELECT * FROM te ORDER BY b NULLS FIRST;
+  } {2 {} 2  4 {} 4  1 1 1  3 3 3  5 5 5}
+
+  do_execsql_test 4.3 {
+    SELECT * FROM tx ORDER BY b NULLS LAST;
+  } {1 1 1  3 3 3  5 5 5  2 {} 2  4 {} 4}
+  do_execsql_test 4.4 {
+    SELECT * FROM te ORDER BY b NULLS LAST;
+  } {1 1 1  3 3 3  5 5 5  2 {} 2  4 {} 4}
+}
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test 5.0 {
+  CREATE TABLE t4(a, b, c);
+  INSERT INTO t4 VALUES(1, 1, 11);
+  INSERT INTO t4 VALUES(1, 2, 12);
+  INSERT INTO t4 VALUES(1, NULL, 1);
+
+  INSERT INTO t4 VALUES(2, NULL, 1);
+  INSERT INTO t4 VALUES(2, 2, 12);
+  INSERT INTO t4 VALUES(2, 1, 11);
+
+  INSERT INTO t4 VALUES(3, NULL, 1);
+  INSERT INTO t4 VALUES(3, 2, 12);
+  INSERT INTO t4 VALUES(3, NULL, 3);
+}
+
+do_execsql_test 5.1 {
+  SELECT * FROM t4 WHERE a IN (1, 2, 3) ORDER BY a, b NULLS LAST
+} {
+  1 1 11   1 2 12   1 {} 1   
+  2 1 11   2 2 12   2 {} 1 
+  3 2 12   3 {} 1   3 {} 3
+}
+do_execsql_test 5.2 {
+  CREATE INDEX t4ab ON t4(a, b);
+  SELECT * FROM t4 WHERE a IN (1, 2, 3) ORDER BY a, b NULLS LAST
+} {
+  1 1 11   1 2 12   1 {} 1   
+  2 1 11   2 2 12   2 {} 1 
+  3 2 12   3 {} 1   3 {} 3
+}
+do_eqp_test 5.3 {
+  SELECT * FROM t4 WHERE a IN (1, 2, 3) ORDER BY a, b NULLS LAST
+} {
+  QUERY PLAN
+  `--SEARCH t4 USING INDEX t4ab (a=?)
+}
+
+do_execsql_test 5.4 {
+  SELECT * FROM t4 WHERE a IN (1, 2, 3) ORDER BY a DESC, b DESC NULLS FIRST
+} {
+  3 {} 3   3 {} 1   3 2 12   
+  2 {} 1   2 2 12   2 1 11   
+  1 {} 1   1 2 12   1 1 11   
+}
+do_eqp_test 5.5 {
+  SELECT * FROM t4 WHERE a IN (1, 2, 3) ORDER BY a DESC, b DESC NULLS FIRST
+} {
+  QUERY PLAN
+  `--SEARCH t4 USING INDEX t4ab (a=?)
+}
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test 6.0 {
+  CREATE TABLE t5(a, b, c);
+  WITH s(i) AS (
+    VALUES(1) UNION ALL SELECT i+1 FROM s WHERE i<200
+  ) 
+  INSERT INTO t5 SELECT i%2, CASE WHEN (i%10)==0 THEN NULL ELSE i END, i FROM s;
+}
+
+set res1 [db eval { SELECT a,b FROM t5 WHERE a=1 ORDER BY b NULLS LAST, c }]
+set res2 [db eval { 
+  SELECT a,b FROM t5 WHERE a=1 ORDER BY b DESC NULLS FIRST, c DESC 
+}]
+
+do_execsql_test 6.1.1 {
+  CREATE INDEX t5ab ON t5(a, b, c);
+  SELECT a,b FROM t5 WHERE a=1 ORDER BY b NULLS LAST, c;
+} $res1
+do_eqp_test 6.1.2 {
+  SELECT a,b FROM t5 WHERE a=1 ORDER BY b NULLS LAST, c;
+} {
+  QUERY PLAN
+  `--SEARCH t5 USING COVERING INDEX t5ab (a=?)
+}
+do_execsql_test 6.2.1 {
+  SELECT a,b FROM t5 WHERE a=1 ORDER BY b DESC NULLS FIRST, c DESC 
+} $res2
+do_eqp_test 6.2.2 {
+  SELECT a,b FROM t5 WHERE a=1 ORDER BY b DESC NULLS FIRST, c DESC 
+} {
+  QUERY PLAN
+  `--SEARCH t5 USING COVERING INDEX t5ab (a=?)
+}
+
+#-------------------------------------------------------------------------
+do_execsql_test 7.0 {
+  CREATE TABLE t71(a, b, c);
+  CREATE INDEX t71abc ON t71(a, b, c);
+
+  SELECT * FROM t71 WHERE a=1 AND b=2 ORDER BY c NULLS LAST;
+  SELECT * FROM t71 WHERE a=1 AND b=2 ORDER BY c DESC NULLS FIRST;
+
+  SELECT * FROM t71 ORDER BY a NULLS LAST;
+  SELECT * FROM t71 ORDER BY a DESC NULLS FIRST;
+}
+
+# 2019-12-18 gramfuzz1 find
+# NULLS LAST not allows on an INTEGER PRIMARY KEY.
+#
+do_catchsql_test 8.0 {
+  CREATE TABLE t80(a, b INTEGER, PRIMARY KEY(b NULLS LAST)) WITHOUT ROWID;
+} {1 {unsupported use of NULLS LAST}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 9.0 {
+  CREATE TABLE v0 (c1, c2, c3);
+  CREATE INDEX v3 ON v0 (c1, c2, c3);
+}
+do_execsql_test 9.1 {
+  ANALYZE sqlite_master;
+  INSERT INTO sqlite_stat1 VALUES('v0','v3','648 324 81');
+  ANALYZE sqlite_master;
+}
+
+do_execsql_test 9.2 {
+  INSERT INTO v0 VALUES
+      (1, 10, 'b'),
+      (1, 10, 'd'),
+      (1, 10, NULL),
+      (2, 10, 'a'),
+      (2, 10, NULL),
+      (1, 10, 'c'),
+      (2, 10, 'b'),
+      (1, 10, 'a'),
+      (1, 10, NULL),
+      (2, 10, NULL),
+      (2, 10, 'd'),
+      (2, 10, 'c');
+}
+
+do_execsql_test 9.3 {
+  SELECT c1, c2, ifnull(c3, 'NULL') FROM v0 
+  WHERE c2=10 ORDER BY c1, c3 NULLS LAST
+} {
+  1 10 a 1 10 b 1 10 c 1 10 d 1 10 NULL 1 10 NULL
+  2 10 a 2 10 b 2 10 c 2 10 d 2 10 NULL 2 10 NULL
+}
+
+do_eqp_test 9.4 {
+  SELECT c1, c2, ifnull(c3, 'NULL') FROM v0 
+  WHERE c2=10 ORDER BY c1, c3 NULLS LAST
+} {SEARCH v0 USING COVERING INDEX v3 (ANY(c1) AND c2=?)}
+
+
+# 2020-03-01 ticket e12a0ae526bb51c7
+# NULLS LAST on a LEFT JOIN
+#
+reset_db
+do_execsql_test 10.10 {
+  CREATE TABLE t1(x);
+  INSERT INTO t1(x) VALUES('X');
+  CREATE TABLE t2(c, d);
+  CREATE INDEX t2dc ON t2(d, c);
+  SELECT c FROM t1 LEFT JOIN t2 ON d=NULL ORDER BY d, c NULLS LAST;
+} {{}}
+do_execsql_test 10.20 {
+  INSERT INTO t2(c,d) VALUES(5,'X'),(6,'Y'),(7,'Z'),(3,'A'),(4,'B');
+  SELECT c FROM t1 LEFT JOIN t2 ON d=x ORDER BY d, c NULLS LAST;
+} {5}
+do_execsql_test 10.30 {
+  UPDATE t2 SET d='X';
+  UPDATE t2 SET c=NULL WHERE c=6;
+  SELECT c FROM t1 LEFT JOIN t2 ON d=x ORDER BY d NULLS FIRST, c NULLS FIRST;
+} {{} 3 4 5 7}
+do_execsql_test 10.40 {
+  SELECT c FROM t1 LEFT JOIN t2 ON d=x ORDER BY d NULLS LAST, c NULLS LAST;
+} {3 4 5 7 {}}
+do_execsql_test 10.41 {
+  SELECT c FROM t1 LEFT JOIN t2 ON d=x ORDER BY c NULLS LAST;
+} {3 4 5 7 {}}
+do_execsql_test 10.42 {
+  SELECT c FROM t1 LEFT JOIN t2 ON d=x ORDER BY +d NULLS LAST, +c NULLS LAST;
+} {3 4 5 7 {}}
+do_execsql_test 10.50 {
+  INSERT INTO t1(x) VALUES(NULL),('Y');
+  SELECT x, c, d, '|' FROM t1 LEFT JOIN t2 ON d=x
+   ORDER BY d NULLS LAST, c NULLS LAST;
+} {X 3 X | X 4 X | X 5 X | X 7 X | X {} X | {} {} {} | Y {} {} |}
+do_execsql_test 10.51 {
+  SELECT x, c, d, '|' FROM t1 LEFT JOIN t2 ON d=x
+   ORDER BY +d NULLS LAST, +c NULLS LAST;
+} {X 3 X | X 4 X | X 5 X | X 7 X | X {} X | {} {} {} | Y {} {} |}
+
+
+
+
+
+finish_test
diff --git a/test/numcast.test b/test/numcast.test
new file mode 100644
index 0000000000000000000000000000000000000000..926bbe4b21b3f305c396359b249815cf1e66c167
--- /dev/null
+++ b/test/numcast.test
@@ -0,0 +1,46 @@
+# 2013 March 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. 
+# This particular file does testing of casting strings into numeric
+# values.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+foreach enc {utf8 utf16le utf16be} {
+  do_test numcast-$enc.0 {
+    db close
+    sqlite3 db :memory:
+    db eval "PRAGMA encoding='$enc'"
+    set x [db eval {PRAGMA encoding}]
+    string map {- {}} [string tolower $x]
+  } $enc
+  foreach {idx str rval ival} {
+     1 12345.0       12345.0    12345
+     2 12345.0e0     12345.0    12345
+     3 -12345.0e0   -12345.0   -12345
+     4 -12345.25    -12345.25  -12345
+     5 { -12345.0}  -12345.0   -12345
+     6 { 876xyz}       876.0      876
+     7 { 456ķ89}       456.0      456
+     8 { Ġ 321.5}        0.0        0
+  } {
+    do_test numcast-$enc.$idx.1 {
+      db eval {SELECT CAST($str AS real)}
+    } $rval
+    do_test numcast-$enc.$idx.2 {
+      db eval {SELECT CAST($str AS integer)}
+    } $ival
+  }
+}
+
+finish_test
diff --git a/test/numindex1.test b/test/numindex1.test
new file mode 100644
index 0000000000000000000000000000000000000000..c647fc5401d434fa11d34a5a40b2c130a89803b1
--- /dev/null
+++ b/test/numindex1.test
@@ -0,0 +1,79 @@
+# 2015-11-05
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements tests for indexes on large numeric values.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+
+# Test cases from Zsbán Ambrus:
+#
+do_execsql_test numindex1-1.1 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+  CREATE INDEX t1b ON t1(b);
+  INSERT INTO t1(a,b) VALUES(100, 356282677878746339);
+  INSERT INTO t1(a,b) VALUES(50, 356282677878746339.0);
+  INSERT INTO t1(a,b) VALUES(0, 356282677878746340);
+  DELETE FROM t1 WHERE a=50;
+  PRAGMA integrity_check;
+} {ok}
+
+do_execsql_test numindex1-1.2 {
+  CREATE TABLE t2(a,b);
+  INSERT INTO t2(a,b) VALUES('b', 1<<58),
+      ('c', (1<<58)+1e-7), ('d', (1<<58)+1);
+  SELECT a, b, typeof(b), '|' FROM t2 ORDER BY +a;
+} {b 288230376151711744 integer | c 2.88230376151712e+17 real | d 288230376151711745 integer |}
+
+do_execsql_test numindex1-1.3 {
+  SELECT x.a || CASE WHEN x.b==y.b THEN '==' ELSE '<>' END || y.a
+    FROM t2 AS x, t2 AS y
+   ORDER BY +x.a, +x.b;
+} {b==b b==c b<>d c==b c==c c<>d d<>b d<>c d==d}
+
+# New test cases
+#
+do_execsql_test numindex1-2.1 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY,b);
+  CREATE INDEX t1b ON t1(b);
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<100)
+  INSERT INTO t1(a,b) SELECT x, 10000000000000004.0 FROM c
+   WHERE x NOT IN (23,37);
+  INSERT INTO t1(a,b) VALUES(23,10000000000000005);
+  INSERT INTO t1(a,b) VALUES(37,10000000000000003);
+  DELETE FROM t1 WHERE a NOT IN (23,37);
+  PRAGMA integrity_check;
+} {ok}
+
+do_execsql_test numindex1-3.1 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY,b);
+  CREATE INDEX t1b ON t1(b);
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<20)
+  INSERT INTO t1(a,b) SELECT x, 100000000000000005.0
+    FROM c WHERE x NOT IN (3,5,7,11,13,17,19);
+  INSERT INTO t1(a,b) VALUES(3,100000000000000005);
+  INSERT INTO t1(a,b) VALUES(5,100000000000000000);
+  INSERT INTO t1(a,b) VALUES(7,100000000000000008);
+  INSERT INTO t1(a,b) VALUES(11,100000000000000006);
+  INSERT INTO t1(a,b) VALUES(13,100000000000000001);
+  INSERT INTO t1(a,b) VALUES(17,100000000000000004);
+  INSERT INTO t1(a,b) VALUES(19,100000000000000003);
+  PRAGMA integrity_check;
+} {ok}
+
+do_execsql_test numindex1-3.2 {
+  SELECT a FROM t1 ORDER BY b;
+} {1 2 4 5 6 8 9 10 12 14 15 16 18 20 13 19 17 3 11 7}
+
+finish_test
diff --git a/test/offset1.test b/test/offset1.test
new file mode 100644
index 0000000000000000000000000000000000000000..5b04bd836c5db8970df565f440ca1e6f7cb81f64
--- /dev/null
+++ b/test/offset1.test
@@ -0,0 +1,202 @@
+# 2015-10-06
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+# This file implements test cases for the [b65cb2c8d91f6685841d7d1e13b6]
+# bug:  Correct handling of LIMIT and OFFSET on a UNION ALL query where
+# the right-hand SELECT contains an ORDER BY in a subquery.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !compound {
+  finish_test
+  return
+}
+
+do_execsql_test offset1-1.1 {
+  CREATE TABLE t1(a,b);
+  INSERT INTO t1 VALUES(1,'a'),(2,'b'),(3,'c'),(4,'d'),(5,'e');
+  CREATE TABLE t2(x,y);
+  INSERT INTO t2 VALUES(8,'y'),(9,'z'),(6,'w'),(7,'x');
+  SELECT count(*) FROM t1, t2;
+} {20}
+
+do_execsql_test offset1-1.2.0 {
+  SELECT a, b FROM t1
+  UNION ALL
+  SELECT * FROM (SELECT x, y FROM t2 ORDER BY y)
+  LIMIT 3 OFFSET 0;
+} {1 a 2 b 3 c}
+do_execsql_test offset1-1.2.1 {
+  SELECT a, b FROM t1
+  UNION ALL
+  SELECT * FROM (SELECT x, y FROM t2 ORDER BY y)
+  LIMIT 3 OFFSET 1;
+} {2 b 3 c 4 d}
+do_execsql_test offset1-1.2.2 {
+  SELECT a, b FROM t1
+  UNION ALL
+  SELECT * FROM (SELECT x, y FROM t2 ORDER BY y)
+  LIMIT 3 OFFSET 2;
+} {3 c 4 d 5 e}
+do_execsql_test offset1-1.2.3 {
+  SELECT a, b FROM t1
+  UNION ALL
+  SELECT * FROM (SELECT x, y FROM t2 ORDER BY y)
+  LIMIT 3 OFFSET 3;
+} {4 d 5 e 6 w}
+do_execsql_test offset1-1.2.4 {
+  SELECT a, b FROM t1
+  UNION ALL
+  SELECT * FROM (SELECT x, y FROM t2 ORDER BY y)
+  LIMIT 3 OFFSET 4;
+} {5 e 6 w 7 x}
+do_execsql_test offset1-1.2.5 {
+  SELECT a, b FROM t1
+  UNION ALL
+  SELECT * FROM (SELECT x, y FROM t2 ORDER BY y)
+  LIMIT 3 OFFSET 5;
+} {6 w 7 x 8 y}
+do_execsql_test offset1-1.2.6 {
+  SELECT a, b FROM t1
+  UNION ALL
+  SELECT * FROM (SELECT x, y FROM t2 ORDER BY y)
+  LIMIT 3 OFFSET 6;
+} {7 x 8 y 9 z}
+do_execsql_test offset1-1.2.7 {
+  SELECT a, b FROM t1
+  UNION ALL
+  SELECT * FROM (SELECT x, y FROM t2 ORDER BY y)
+  LIMIT 3 OFFSET 7;
+} {8 y 9 z}
+do_execsql_test offset1-1.2.8 {
+  SELECT a, b FROM t1
+  UNION ALL
+  SELECT * FROM (SELECT x, y FROM t2 ORDER BY y)
+  LIMIT 3 OFFSET 8;
+} {9 z}
+do_execsql_test offset1-1.2.9 {
+  SELECT a, b FROM t1
+  UNION ALL
+  SELECT * FROM (SELECT x, y FROM t2 ORDER BY y)
+  LIMIT 3 OFFSET 9;
+} {}
+
+do_execsql_test offset1-1.3.0 {
+  SELECT * FROM t1 LIMIT 0;
+} {}
+
+do_execsql_test offset1-1.4.0 {
+  SELECT a, b FROM t1
+  UNION ALL
+  SELECT * FROM (SELECT x, y FROM t2 ORDER BY y)
+  LIMIT 0 OFFSET 1;
+} {}
+do_execsql_test offset1-1.4.1 {
+  SELECT a, b FROM t1
+  UNION ALL
+  SELECT * FROM (SELECT x, y FROM t2 ORDER BY y)
+  LIMIT 1 OFFSET 1;
+} {2 b}
+do_execsql_test offset1-1.4.2 {
+  SELECT a, b FROM t1
+  UNION ALL
+  SELECT * FROM (SELECT x, y FROM t2 ORDER BY y)
+  LIMIT 2 OFFSET 1;
+} {2 b 3 c}
+do_execsql_test offset1-1.4.3 {
+  SELECT a, b FROM t1
+  UNION ALL
+  SELECT * FROM (SELECT x, y FROM t2 ORDER BY y)
+  LIMIT 3 OFFSET 1;
+} {2 b 3 c 4 d}
+do_execsql_test offset1-1.4.4 {
+  SELECT a, b FROM t1
+  UNION ALL
+  SELECT * FROM (SELECT x, y FROM t2 ORDER BY y)
+  LIMIT 4 OFFSET 1;
+} {2 b 3 c 4 d 5 e}
+do_execsql_test offset1-1.4.5 {
+  SELECT a, b FROM t1
+  UNION ALL
+  SELECT * FROM (SELECT x, y FROM t2 ORDER BY y)
+  LIMIT 5 OFFSET 1;
+} {2 b 3 c 4 d 5 e 6 w}
+do_execsql_test offset1-1.4.6 {
+  SELECT a, b FROM t1
+  UNION ALL
+  SELECT * FROM (SELECT x, y FROM t2 ORDER BY y)
+  LIMIT 6 OFFSET 1;
+} {2 b 3 c 4 d 5 e 6 w 7 x}
+do_execsql_test offset1-1.4.7 {
+  SELECT a, b FROM t1
+  UNION ALL
+  SELECT * FROM (SELECT x, y FROM t2 ORDER BY y)
+  LIMIT 7 OFFSET 1;
+} {2 b 3 c 4 d 5 e 6 w 7 x 8 y}
+do_execsql_test offset1-1.4.8 {
+  SELECT a, b FROM t1
+  UNION ALL
+  SELECT * FROM (SELECT x, y FROM t2 ORDER BY y)
+  LIMIT 8 OFFSET 1;
+} {2 b 3 c 4 d 5 e 6 w 7 x 8 y 9 z}
+do_execsql_test offset1-1.4.9 {
+  SELECT a, b FROM t1
+  UNION ALL
+  SELECT * FROM (SELECT x, y FROM t2 ORDER BY y)
+  LIMIT 9 OFFSET 1;
+} {2 b 3 c 4 d 5 e 6 w 7 x 8 y 9 z}
+
+# 2022-08-04
+# https://sqlite.org/forum/forumpost/6b5e9188f0657616
+#
+do_execsql_test offset1-2.0 {
+  CREATE TABLE employees (
+    id integer primary key,
+    name text,
+    city text,
+    department text,
+    salary integer
+  );
+  INSERT INTO employees VALUES
+    (11,'Diane','London','hr',70),
+    (12,'Bob','London','hr',78),
+    (21,'Emma','London','it',84),
+    (22,'Grace','Berlin','it',90),
+    (23,'Henry','London','it',104),
+    (24,'Irene','Berlin','it',104),
+    (25,'Frank','Berlin','it',120),
+    (31,'Cindy','Berlin','sales',96),
+    (32,'Dave','London','sales',96),
+    (33,'Alice','Berlin','sales',100);
+  CREATE VIEW v AS
+    SELECT * FROM (
+      SELECT * FROM employees 
+       WHERE salary < 100
+       ORDER BY salary desc)
+     UNION ALL 
+     SELECT * FROM (
+       SELECT * FROM employees
+       WHERE salary >= 100
+       ORDER BY salary asc);
+} {}
+do_execsql_test offset1-2.1 {
+  SELECT * FROM v LIMIT 5 OFFSET 2;
+} {
+  22  Grace  Berlin  it      90
+  21  Emma   London  it      84
+  12  Bob    London  hr      78
+  11  Diane  London  hr      70
+  33  Alice  Berlin  sales   100
+}
+
+finish_test
diff --git a/test/openv2.test b/test/openv2.test
new file mode 100644
index 0000000000000000000000000000000000000000..2a9e22d6b0de69a313c94bd1bf0659a42af63864
--- /dev/null
+++ b/test/openv2.test
@@ -0,0 +1,55 @@
+# 2007 Sep 3
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests on the sqlite3_open_v2() interface.
+#
+# $Id: openv2.test,v 1.2 2009/06/11 17:32:45 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+db close
+forcedelete test.db test.db-journal
+do_test openv2-1.1 {
+  set rc [catch {sqlite3 db test.db -create 0} msg]
+  lappend rc $msg
+} {1 {unable to open database file}}
+do_test openv2-1.2 {
+  info commands db
+} {}
+do_test openv2-1.3 {
+  sqlite3 db test.db
+  db eval {CREATE TABLE t1(x)}
+  db close
+  sqlite3 db test.db -readonly 1
+  db eval {SELECT name FROM sqlite_master}
+} {t1}
+do_test openv2-1.4 {
+  catchsql {
+    INSERT INTO t1 VALUES(123)
+  }
+} {1 {attempt to write a readonly database}}
+
+# Ticket #3908
+# Honor SQLITE_OPEN_READONLY even on an in-memory database, even though
+# this is pointless.
+#
+do_test openv2-2.1 {
+  db close
+  sqlite3 db :memory: -readonly 1
+  db eval {SELECT * FROM sqlite_master}
+} {}
+do_test openv2-2.2 {
+  catchsql {CREATE TABLE t1(x)}
+} {1 {attempt to write a readonly database}}
+
+
+finish_test
diff --git a/test/optfuzz-db01.c b/test/optfuzz-db01.c
new file mode 100644
index 0000000000000000000000000000000000000000..e11f15cc2e00006771e318cf400e1d355d692106
--- /dev/null
+++ b/test/optfuzz-db01.c
@@ -0,0 +1,947 @@
+/* content of file testdb01.db */
+unsigned char data001[] = {
+  83, 81, 76,105,116,101, 32,102,111,114,109, 97,116, 32, 51,  0,  2,  0,  1,
+   1,  0, 64, 32, 32,  0,  0,  0,  2,  0,  0,  0, 35,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0, 31,  0,  0,  0,  4,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  1,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   2,  0, 46, 32,152,  5,  0,  0,  0,  7,  1,221,  0,  0,  0,  0, 35,  1,251,
+   1,246,  1,241,  1,236,  1,231,  1,226,  1,221, 84,  4,  7, 23, 17, 17,  1,
+ 129, 19,116, 97, 98,108,101,116, 52,116, 52,  5, 67, 82, 69, 65, 84, 69, 32,
+  84, 65, 66, 76, 69, 32,116, 52, 40, 97, 32, 73, 78, 84, 32, 85, 78, 73, 81,
+  85, 69, 32, 78, 79, 84, 32, 78, 85, 76, 76, 44, 32, 98, 32, 73, 78, 84, 32,
+  85, 78, 73, 81, 85, 69, 32, 78, 79, 84, 32, 78, 85, 76, 76, 44, 99, 44,100,
+  44,101, 41, 35,  6,  6, 23, 55, 17,  1,  0,105,110,100,101,120,115,113,108,
+ 105,116,101, 95, 97,117,116,111,105,110,100,101,120, 95,116, 52, 95, 50,116,
+  52,  7, 35,  5,  6, 23, 55, 17,  1,  0,105,110,100,101,120,115,113,108,105,
+ 116,101, 95, 97,117,116,111,105,110,100,101,120, 95,116, 52, 95, 49,116, 52,
+   6, 42,  3,  6, 23, 17, 17,  1, 65,116, 97, 98,108,101,116, 51,116, 51,  4,
+  67, 82, 69, 65, 84, 69, 32, 84, 65, 66, 76, 69, 32,116, 51, 40, 97, 44, 98,
+  44, 99, 44,100, 44,101, 41, 95,  2,  7, 23, 17, 17,  1,129, 41,116, 97, 98,
+ 108,101,116, 50,116, 50,  3, 67, 82, 69, 65, 84, 69, 32, 84, 65, 66, 76, 69,
+  32,116, 50, 40, 97, 32, 73, 78, 84, 44, 32, 98, 32, 73, 78, 84, 44, 32, 99,
+  32, 73, 78, 84, 44,100, 32, 73, 78, 84, 44,101, 32, 73, 78, 84, 44, 80, 82,
+  73, 77, 65, 82, 89, 32, 75, 69, 89, 40, 98, 44, 97, 41, 41, 87, 73, 84, 72,
+  79, 85, 84, 32, 82, 79, 87, 73, 68, 83,  1,  7, 23, 17, 17,  1,129, 17,116,
+  97, 98,108,101,116, 49,116, 49,  2, 67, 82, 69, 65, 84, 69, 32, 84, 65, 66,
+  76, 69, 32,116, 49, 40, 97, 32, 73, 78, 84, 69, 71, 69, 82, 32, 80, 82, 73,
+  77, 65,  0,  0,  0, 34, 32,  0,  0,  0, 33, 29,  0,  0,  0, 32, 26,  0,  0,
+   0, 31, 23,  0,  0,  0, 30, 19,  0,  0,  0, 11, 14,  0,  0,  0,  9,  7,  5,
+   0,  0,  0,  1,  1,251,  0,  0,  0,  0, 16,  1,251,  1,195,  1,180,  1,166,
+   1,151,  1,136,  1,121,  1,105,  1, 91,  1, 76,  1, 61,  1, 46,  1, 29,  1,
+  14,  0,252,  0,238,  0,224,  0,209,  0,194,  0,177,  0,157,  0,143,  0,128,
+   0,110,  0, 94,  0, 78,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0, 14, 28,  6,  0,  1,  1,  1, 23, 17, 67, 31,119,111,114,107,115, 14, 27,
+   6,  0,  1,  1,  1, 23, 22, 71,  3, 97,110,103,101,108, 16, 26,  6,  0,  1,
+   1,  1, 27, 40, 98, 17,109,111,114,110,105,110,103, 13, 25,  6,  0,  1,  1,
+   1, 21, 10,  7, 19,103,111,110,101, 12, 24,  6,  0,  1,  1,  9, 21, 43, 46,
+ 119, 97,121,115, 18, 23,  6,  0,  1,  1,  1, 31,  6, 37, 31,115, 97, 99,114,
+ 105,102,105, 99,101, 15, 22,  6,  0,  1,  1,  1, 25, 45, 71, 28,116,104,111,
+ 117,103,104, 13, 21,  6,  0,  1,  1,  1, 21, 22, 92, 18,115,111,109,101, 13,
+  20,  6,  0,  9,  1,  1, 23,  2, 45, 97, 98,111,118,101, 12, 19,  6,  0,  1,
+   1,  8, 21,  4, 58,119, 97,121,115, 12, 18,  6,  0,  1,  1,  1, 19, 44, 19,
+  43,119, 97,114, 16, 17,  6,  0,  1,  1,  1, 27, 29, 74, 36, 98,101,116,119,
+ 101,101,110, 13, 16,  6,  0,  1,  1,  1, 21, 44, 52, 19,112,111,111,114, 15,
+  15,  6,  0,  1,  1,  1, 25,  6,  3, 11,116,101,109,112,108,101, 13, 14,  6,
+   0,  1,  1,  1, 21, 35, 48, 27,100,105,101,100, 13, 13,  6,  0,  1,  1,  1,
+  21,  4, 21, 39,100,111,116,104, 13, 12,  6,  0,  1,  1,  1, 21,  4, 38, 36,
+ 115,101,110,100, 12, 11,  6,  0,  1,  1,  1, 19, 13, 48, 22,115,105,120, 14,
+  10,  6,  0,  1,  1,  1, 23, 41, 89, 14,115,101,114,118,101, 13,  9,  6,  0,
+   8,  1,  1, 23, 16, 50, 98,101,103, 97,116, 13,  8,  6,  0,  1,  1,  1, 21,
+  42, 49, 34,115,101,110,100, 13,  7,  6,  0,  1,  1,  1, 21, 21, 91, 38,110,
+ 101, 97,114, 12,  6,  6,  0,  1,  1,  1, 19,  2, 37, 11, 99, 97,110, 13,  5,
+   6,  0,  1,  1,  1, 21, 25, 27, 28,103,111,110,101, 13,  4,  6,  0,  1,  1,
+   1, 21, 41, 32, 35,110,101, 97,114, 14,  3,  6,  0,  1,  1,  1, 23, 32, 24,
+  26,115,101,114,118,101, 13,  2,  6,  0,  1,  1,  1, 21, 45, 14, 39,115, 97,
+ 118,101, 13,  1,  6,  0,  1,  1,  1, 21, 40, 68,  0,  0,  0, 15, 28,  2,  0,
+   0,  0,  1,  1,238,  0,  0,  0,  0, 22,  1,238,  1,197,  1,181,  1,166,  1,
+ 151,  1,137,  1,121,  1,104,  1, 84,  1, 73,  1, 59,  1, 41,  1, 26,  1, 11,
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+  27,116,114,117,116,104, 17, 18,  6,  0, 23,  1,  1, 21,100,119,101,108,116,
+  21, 39,100,111,116,104, 19, 17,  6,  0, 27,  1,  1, 21,109,111,114,110,105,
+ 110,103, 52, 19,112,111,111,114, 17, 16,  6,  0, 21,  1,  1, 23,115,104,101,
+ 119, 90, 27,116,114,117,116,104, 24, 15,  6,  0, 27,  1,  1, 31,116,104,101,
+ 114,101,105,110, 37, 31,115, 97, 99,114,105,102,105, 99,101, 18, 14,  6,  0,
+  23,  1,  8, 25,115,109,111,116,101,  7,112,108, 97, 99,101,115, 11, 13,  6,
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+ 105,110,101, 58,119, 97,121,115, 19, 11,  6,  0, 21,  1,  1, 27,115,111,109,
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+   9,  3, 23,  1, 98,101,103, 97,116,  9,  7,  3, 19,  1, 97,114,107, 34,  9,
+   3, 23,  1, 97,110,103,101,114, 47,  9,  3, 23,  1, 97,110,103,101,108, 27,
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+   0, 76,  0,  0,  0,  0, 12,  5, 21,  1,  1,  1,115,101,110,100, 26, 14, 40,
+  12,  5, 21,  1,  1,  1,115, 97,118,101, 39, 45,  2, 17,  5, 31,  1,  1,  1,
+ 115, 97, 99,114,105,102,105, 99,101, 31,  6, 23, 12,  5, 21,  1,  1,  1,112,
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+  32, 11,  5, 19,  1,  1,  1,111,105,108, 38,  9, 49, 12,  5, 21,  1,  1,  1,
+ 110,101, 97,114, 38, 21,  7, 12,  5, 21,  1,  1,  1,110,101, 97,114, 35, 41,
+   4, 15,  5, 27,  1,  1,  1,109,111,114,110,105,110,103, 17, 40, 26, 15,  5,
+  27,  1,  1,  1,109,111,114,110,105,110,103, 13, 46, 41, 12,  5, 21,  1,  1,
+   1,103,111,110,101, 28, 25,  5, 12,  5, 21,  1,  1,  1,103,111,110,101, 19,
+  10, 25, 13,  5, 23,  1,  1,  1,100,119,101,108,116, 18, 17, 37, 12,  5, 21,
+   1,  1,  1,100,111,116,104, 39,  4, 13, 11,  5, 21,  1,  1,  9,100,111,116,
+ 104, 32, 40, 12,  5, 21,  1,  1,  1,100,111,116,104,  9, 48, 44, 12,  5, 21,
+   1,  1,  1,100,105,101,100, 27, 35, 14, 16,  5, 29,  1,  1,  1,100,101,112,
+  97,114,116,101,100, 22, 28, 46, 14,  5, 25,  1,  1,  1, 99,117, 98,105,116,
+ 115, 22, 38, 35, 12,  5, 23,  1,  8,  1, 99,104,105,108,100, 17, 36, 11,  5,
+  19,  1,  1,  1, 99, 97,110, 11,  2,  6, 15,  5, 27,  1,  1,  1, 98,101,116,
+ 119,101,101,110, 36, 29, 17, 12,  5, 23,  1,  8,  1, 98,101,103, 97,116, 50,
+   9, 13,  5, 23,  1,  1,  1, 98,101,103, 97,116, 45,  3, 39, 13,  5, 23,  1,
+   1,  1, 98,101,103, 97,116, 41,  5, 43, 13,  5, 23,  1,  1,  1, 98,101,103,
+  97,116,  5, 20, 42, 11,  5, 19,  1,  1,  1, 97,114,107, 20, 26, 34, 13,  5,
+  23,  1,  1,  1, 97,110,103,101,114, 40, 22, 47, 13,  5, 23,  1,  1,  1, 97,
+ 110,103,101,108,  3, 22, 27, 12,  5, 23,  1,  9,  1, 97, 98,111,118,101, 45,
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+  13,  6,  0, 19,  1,  1,  0, 97,114,107, 72, 31, 15, 12,  6,  0, 21,  1,  8,
+  21,119,105,110,101, 58,119, 97,121,115, 19, 11,  6,  0, 21,  1,  1, 27,115,
+ 111,109,101, 98, 17,109,111,114,110,105,110,103, 19, 10,  6,  0, 27,  1,  1,
+  21, 98,101,116,119,101,101,110, 92, 18,115,111,109,101, 19,  9,  6,  0, 21,
+   1,  1, 27,115, 97,118,101, 74, 36, 98,101,116,119,101,101,110, 21,  8,  6,
+   0, 25,  1,  1, 27,116,104,111,117,103,104, 98, 17,109,111,114,110,105,110,
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+  18,  6,  6,  0, 25,  1,  1, 21,119,105,115,100,111,109, 38, 36,115,101,110,
+ 100, 16,  5,  6,  0, 23,  1,  9, 21, 97,110,103,101,114, 46,119, 97,121,115,
+  14,  4,  6,  0, 19,  1,  1, 19, 99, 97,110, 19, 43,119, 97,114, 16,  3,  6,
+   0, 23,  1,  1, 19,111,102,102,101,114, 48, 22,115,105,120, 16,  2,  6,  0,
+  23,  1,  8, 21,119,111,114,107,115, 58,119, 97,121,115, 16,  1,  6,  0, 23,
+   1,  1, 19,116,114,117,116,104, 37, 11, 99, 97,110, 13,  0,  0,  0, 22,  0,
+  64,  0,  1,230,  1,213,  1,191,  1,169,  1,148,  1,130,  1,108,  1, 89,  1,
+  70,  1, 51,  1, 34,  1, 16,  0,253,  0,233,  0,214,  0,194,  0,174,  0,151,
+   0,132,  0,109,  0, 90,  0, 64,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0, 24, 45,  6,  0, 35,  1,  1, 23,105,110,104, 97, 98,105,116, 97,110,116,
+ 115, 23, 41, 98,101,103, 97,116, 17, 44,  6,  0, 23,  1,  1, 21, 97,110,103,
+ 101,108, 48, 27,100,105,101,100, 21, 43,  6,  0, 25,  1,  1, 27,116,101,109,
+ 112,108,101, 74, 36, 98,101,116,119,101,101,110, 17, 42,  6,  0, 23,  1,  1,
+  21, 99,104,105,108,100, 81, 25,119, 97,108,107, 21, 41,  6,  0, 21,  1,  1,
+  31,119, 97,121,115, 37, 31,115, 97, 99,114,105,102,105, 99,101, 18, 40,  6,
+   0, 21,  1,  1, 25,112,111,111,114, 93,  7,116,101,109,112,108,101, 18, 39,
+   6,  0, 21,  1,  1, 25,100,111,116,104,  3, 11,116,101,109,112,108,101, 17,
+  38,  6,  0, 23,  1,  1, 21,102,114,117,105,116, 62, 27,115,101,110,100, 18,
+  37,  6,  0, 23,  1,  1, 23,115,101,114,118,101, 90, 27,116,114,117,116,104,
+  17, 36,  6,  0, 21,  1,  1, 23,110,101, 97,114, 90, 27,116,114,117,116,104,
+  16, 35,  6,  0, 21,  1,  1, 21,108,111,110,103, 14, 39,115, 97,118,101, 15,
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+  73, 78, 71, 32, 99,111,117,110,116, 40, 42, 41, 62, 49, 32, 79, 82, 68, 69,
+  82, 32, 66, 89, 32, 51, 44, 32, 49,129, 18, 24,  7, 21, 19, 19,  8,130, 15,
+ 118,105,101,119,118, 50, 50,118, 50, 50, 67, 82, 69, 65, 84, 69, 32, 86, 73,
+  69, 87, 32,118, 50, 50, 40, 97, 44, 98, 44, 99, 44,100, 44,101, 41, 32, 65,
+  83, 10, 32, 32, 83, 69, 76, 69, 67, 84, 32,115,117,109, 40, 97, 41, 44, 32,
+  97,118,103, 40, 98, 41, 44, 32, 99,111,117,110,116, 40, 42, 41, 44, 32,109,
+ 105,110, 40,100, 41, 44, 32,101, 32, 70, 82, 79, 77, 32,116, 50, 32, 71, 82,
+  79, 85, 80, 32, 66, 89, 32, 53, 10, 32, 32, 32, 32, 72, 65, 86, 73, 78, 71,
+  32, 99,111,117,110,116, 40, 42, 41, 62, 49, 32, 79, 82, 68, 69, 82, 32, 66,
+  89, 32, 51, 44, 32, 49, 13,  1,108,  0,  3,  0, 83,  0,  0,225,  0, 83,  1,
+ 136,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,129, 11, 28,  7, 21, 19,
+  19,  8,130,  1,118,105,101,119,118, 49, 51,118, 49, 51, 67, 82, 69, 65, 84,
+  69, 32, 86, 73, 69, 87, 32,118, 49, 51, 40, 97, 44, 98, 44, 99, 44,100, 44,
+ 101, 41, 32, 65, 83, 10, 32, 32, 83, 69, 76, 69, 67, 84, 32, 97, 44, 98, 44,
+  99, 44,100, 44,101, 32, 70, 82, 79, 77, 32,116, 49, 10, 32, 32, 85, 78, 73,
+  79, 78, 32, 83, 69, 76, 69, 67, 84, 32, 97, 44, 98, 44, 99, 44,100, 44,101,
+  32, 70, 82, 79, 77, 32,116, 50, 10, 32, 32, 85, 78, 73, 79, 78, 32, 83, 69,
+  76, 69, 67, 84, 32, 97, 44, 98, 44, 99, 44,100, 44,101, 32, 70, 82, 79, 77,
+  32,116, 51,129,  8, 27,  7, 21, 19, 19,  8,129,123,118,105,101,119,118, 53,
+  50,118, 53, 50, 67, 82, 69, 65, 84, 69, 32, 86, 73, 69, 87, 32,118, 53, 50,
+  40, 97, 44, 98, 44, 99, 44,100, 44,101, 41, 32, 65, 83, 10, 32, 32, 83, 69,
+  76, 69, 67, 84, 32, 99,111,117,110,116, 40, 42, 41, 44, 32,109,105,110, 40,
+  98, 41, 44, 32,115,117, 98,115,116,114, 40, 98, 44, 49, 44, 49, 41, 44, 32,
+ 109,105,110, 40, 97, 41, 44, 32,109, 97,120, 40, 97, 41, 32, 70, 82, 79, 77,
+  32,116, 53, 10, 32, 32, 32, 71, 82, 79, 85, 80, 32, 66, 89, 32, 51, 32, 79,
+  82, 68, 69, 82, 32, 66, 89, 32, 49,  0,  0,  0, 28, 21, 19, 19,  8,130, 13,
+ 118,105,101,119,118, 52, 50,118, 52, 50, 67, 82, 69, 65, 84, 69, 32, 86,118,
+  29,  7, 21, 19, 19,  8,129, 87,118,105,101,119,118, 50, 51,118, 50, 51, 67,
+  82, 69, 65, 84, 69, 32, 86, 73, 69, 87, 32,118, 50, 51, 40, 97, 44, 98, 44,
+  99, 44,100, 44,101, 41, 32, 65, 83, 10, 32, 32, 83, 69, 76, 69, 67, 84, 32,
+  97, 44, 98, 44, 99, 44,100, 44,101, 32, 70, 82, 79, 77, 32,116, 49, 10, 32,
+  32, 69, 88, 67, 69, 80, 84, 32, 83, 69, 76, 69, 67, 84, 32, 97, 44, 98, 44,
+  99, 44,100, 44,101, 32, 70, 82, 79, 77, 32,116, 49, 32, 87, 72, 69, 82, 69,
+  32, 98, 60, 50, 53, 13,  0,  0,  0,  3,  0, 40,  0,  1,134,  1, 12,  0, 40,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,129, 97, 32,  7, 21, 19, 19,  8,131, 45,118,105,
+ 101,119,118, 54, 50,118, 54, 50, 67, 82, 69, 65, 84, 69, 32, 86, 73, 69, 87,
+  32,118, 54, 50, 40, 97, 44, 98, 44, 99, 44,100, 44,101, 41, 32, 65, 83, 10,
+  32, 32, 83, 69, 76, 69, 67, 84, 32,116, 49, 46, 97, 44,116, 50, 46, 98, 44,
+ 116, 51, 46, 99, 44,116, 52, 46,100, 44,116, 53, 46, 98, 10, 32, 32, 32, 32,
+  70, 82, 79, 77, 32,116, 49, 32, 74, 79, 73, 78, 32,116, 50, 32, 79, 78, 32,
+  40,116, 49, 46, 97, 61,116, 50, 46, 98, 41, 10, 32, 32, 32, 32, 32, 32, 32,
+  32, 32, 32, 32, 32, 74, 79, 73, 78, 32,116, 51, 32, 79, 78, 32, 40,116, 49,
+  46, 97, 61,116, 51, 46, 97, 41, 10, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32,
+  32, 32, 74, 79, 73, 78, 32,116, 52, 32, 79, 78, 32, 40,116, 52, 46, 98, 61,
+ 116, 51, 46, 98, 41, 10, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 76,
+  69, 70, 84, 32, 74, 79, 73, 78, 32,116, 53, 32, 79, 78, 32, 40,116, 53, 46,
+  97, 61,116, 49, 46, 99, 41,120, 31,  7, 21, 19, 19,  8,129, 91,118,105,101,
+ 119,118, 54, 49,118, 54, 49, 67, 82, 69, 65, 84, 69, 32, 86, 73, 69, 87, 32,
+ 118, 54, 49, 40, 97, 44, 98, 44, 99, 44,100, 44,101, 41, 32, 65, 83, 10, 32,
+  32, 83, 69, 76, 69, 67, 84, 32,116, 50, 46, 97, 44,116, 51, 46, 98, 44,116,
+  50, 46, 99, 44,116, 51, 46,100, 44,116, 50, 46,101, 10, 32, 32, 32, 32, 70,
+  82, 79, 77, 32,116, 50, 32, 76, 69, 70, 84, 32, 74, 79, 73, 78, 32,116, 51,
+  32, 79, 78, 32, 40,116, 50, 46, 97, 61,116, 51, 46, 97, 41,120, 30,  7, 21,
+  19, 19,  8,129, 91,118,105,101,119,118, 54, 48,118, 54, 48, 67, 82, 69, 65,
+  84, 69, 32, 86, 73, 69, 87, 32,118, 54, 48, 40, 97, 44, 98, 44, 99, 44,100,
+  44,101, 41, 32, 65, 83, 10, 32, 32, 83, 69, 76, 69, 67, 84, 32,116, 49, 46,
+  97, 44,116, 50, 46, 98, 44,116, 49, 46, 99, 44,116, 50, 46,100, 44,116, 49,
+  46,101, 10, 32, 32, 32, 32, 70, 82, 79, 77, 32,116, 49, 32, 76, 69, 70, 84,
+  32, 74, 79, 73, 78, 32,116, 50, 32, 79, 78, 32, 40,116, 49, 46, 97, 61,116,
+  50, 46, 98, 41, 13,  0,  0,  0,  1,  1, 73,  0,  1, 73,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,129, 52, 33,  7, 21, 19, 19,  8,130,
+  83,118,105,101,119,118, 55, 48,118, 55, 48, 67, 82, 69, 65, 84, 69, 32, 86,
+  73, 69, 87, 32,118, 55, 48, 40, 97, 44, 98, 44, 99, 44,100, 44,101, 41, 32,
+  65, 83, 10, 32, 32, 87, 73, 84, 72, 32, 82, 69, 67, 85, 82, 83, 73, 86, 69,
+  32, 99, 48, 40,120, 41, 32, 65, 83, 32, 40, 86, 65, 76, 85, 69, 83, 40, 49,
+  41, 32, 85, 78, 73, 79, 78, 32, 65, 76, 76, 32, 83, 69, 76, 69, 67, 84, 32,
+ 120, 43, 49, 32, 70, 82, 79, 77, 32, 99, 48, 32, 87, 72, 69, 82, 69, 32,120,
+  60, 57, 41, 10, 32, 32, 83, 69, 76, 69, 67, 84, 32,120, 44, 32, 98, 44, 32,
+  99, 44, 32,100, 44, 32,101, 32, 70, 82, 79, 77, 32, 99, 48, 32, 74, 79, 73,
+  78, 32,116, 49, 32, 79, 78, 32, 40,116, 49, 46, 97, 61, 53, 48, 45, 99, 48,
+  46,120, 41,
+};
diff --git a/test/optfuzz-db01.txt b/test/optfuzz-db01.txt
new file mode 100644
index 0000000000000000000000000000000000000000..d9eef9320df265cdbbc8983bb1aff9f19ca1a8e7
--- /dev/null
+++ b/test/optfuzz-db01.txt
@@ -0,0 +1,142 @@
+-- Run this script through the sqlite3 command-line shell in order to generate
+-- a database file containing lots of data for testing purposes.
+--
+-- This script assumes that the "bin2c" program is available on ones $PATH.
+-- The "bin2c" program reads a binary file and outputs C-code that creates
+-- an array of bytes holding the content of that file.
+--
+-- This script is designed to create many tables and views all having
+-- 5 columns, "a" through "e", and with a variety of integers, short strings,
+-- and NULL values.
+--
+.open -new testdb01.db
+PRAGMA page_size=512;
+BEGIN;
+CREATE TABLE t1(a INTEGER PRIMARY KEY, b INT, c INT, d INT, e INT);
+WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<50)
+INSERT INTO t1(a,b,c,d,e) SELECT x,abs(random()%51),
+   abs(random()%100), abs(random()%51), abs(random()%100) FROM c;
+CREATE TABLE t2(a INT, b INT, c INT,d INT,e INT,PRIMARY KEY(b,a))WITHOUT ROWID;
+INSERT INTO t2 SELECT * FROM t1;
+CREATE TABLE t3(a,b,c,d,e);
+INSERT INTO t3 SELECT a,b,c,d,e FROM t1 ORDER BY random() LIMIT 5;
+INSERT INTO t3 SELECT null,b,c,d,e FROM t1 ORDER BY random() LIMIT 5;
+INSERT INTO t3 SELECT a,null,c,d,e FROM t1 ORDER BY random() LIMIT 5;
+INSERT INTO t3 SELECT a,b,null,d,e FROM t1 ORDER BY random() LIMIT 5;
+INSERT INTO t3 SELECT a,b,c,null,e FROM t1 ORDER BY random() LIMIT 5;
+INSERT INTO t3 SELECT a,b,c,d,null FROM t1 ORDER BY random() LIMIT 5;
+INSERT INTO t3 SELECT null,null,null,null,null FROM t1 LIMIT 5;
+CREATE INDEX t3x1 ON t3(a,b,c,d,e);
+CREATE TABLE t4(a INT UNIQUE NOT NULL, b INT UNIQUE NOT NULL,c,d,e);
+INSERT OR IGNORE INTO t4 SELECT a,b,c,d,e FROM t3;
+CREATE TABLE t5(a INTEGER PRIMARY KEY, b TEXT UNIQUE,c,d,e);
+INSERT INTO t5(b) VALUES
+   ('truth'),
+   ('works'),
+   ('offer'),
+   ('can'),
+   ('anger'),
+   ('wisdom'),
+   ('send'),
+   ('though'),
+   ('save'),
+   ('between'),
+   ('some'),
+   ('wine'),
+   ('ark'),
+   ('smote'),
+   ('therein'),
+   ('shew'),
+   ('morning'),
+   ('dwelt'),
+   ('begat'),
+   ('nothing'),
+   ('war'),
+   ('above'),
+   ('known'),
+   ('sacrifice'),
+   ('tell'),
+   ('departed'),
+   ('thyself'),
+   ('places'),
+   ('bear'),
+   ('part'),
+   ('while'),
+   ('gone'),
+   ('cubits'),
+   ('walk'),
+   ('long'),
+   ('near'),
+   ('serve'),
+   ('fruit'),
+   ('doth'),
+   ('poor'),
+   ('ways'),
+   ('child'),
+   ('temple'),
+   ('angel'),
+   ('inhabitants'),
+   ('oil'),
+   ('died'),
+   ('six'),
+   ('tree'),
+   ('wrath');
+UPDATE t1 SET e=(SELECT b FROM t5 WHERE t5.a=(t1.e%51));
+UPDATE t5 SET (c,d,e) = 
+   (SELECT c,d,e FROM t1 WHERE t1.a=abs(t5.a+random()/100)%50+1);
+UPDATE t2 SET e=(SELECT b FROM t5 WHERE t5.a=(t2.e%51));
+UPDATE t3 SET e=(SELECT b FROM t5 WHERE t5.a=t3.e);
+CREATE INDEX t1e ON t1(e);
+CREATE INDEX t2ed ON t2(e,d);
+CREATE VIEW v00(a,b,c,d,e) AS SELECT 1,1,1,1,'one';
+CREATE VIEW v10(a,b,c,d,e) AS SELECT a,b,c,d,e FROM t1 WHERE a<>25;
+CREATE VIEW v20(a,b,c,d,e) AS SELECT a,b,c,d,e FROM t2 WHERE a<>25;
+CREATE VIEW v30(a,b,c,d,e) AS SELECT a,b,c,d,e FROM t3 WHERE a<>25;
+CREATE VIEW v40(a,b,c,d,e) AS SELECT a,b,c,d,e FROM t4 WHERE a<>25;
+CREATE VIEW v50(a,b) AS SELECT a,b FROM t5 WHERE a<>25;
+CREATE VIEW v11(a,b,c,d,e) AS SELECT a,b,c,d,e FROM t1 ORDER BY b LIMIT 10;
+CREATE VIEW v21(a,b,c,d,e) AS SELECT a,b,c,d,e FROM t2 ORDER BY b LIMIT 10;
+CREATE VIEW v31(a,b,c,d,e) AS SELECT a,b,c,d,e FROM t3 ORDER BY b LIMIT 10;
+CREATE VIEW v41(a,b,c,d,e) AS SELECT a,b,c,d,e FROM t4 ORDER BY b LIMIT 10;
+CREATE VIEW v51(a,b) AS SELECT a,b FROM t5 ORDER BY b LIMIT 10;
+CREATE VIEW v12(a,b,c,d,e) AS
+  SELECT sum(a), avg(b), count(*), min(d), e FROM t1 GROUP BY 5;
+CREATE VIEW v22(a,b,c,d,e) AS
+  SELECT sum(a), avg(b), count(*), min(d), e FROM t2 GROUP BY 5
+    HAVING count(*)>1 ORDER BY 3, 1;
+CREATE VIEW v32(a,b,c,d,e) AS
+  SELECT sum(a), avg(b), count(*), min(d), e FROM t3 GROUP BY 5
+    HAVING count(*)>1 ORDER BY 3, 1;
+CREATE VIEW v42(a,b,c,d,e) AS
+  SELECT sum(a), avg(b), count(*), min(d), e FROM t4 GROUP BY 5
+    HAVING min(d)<30 ORDER BY 3, 1;
+CREATE VIEW v52(a,b,c,d,e) AS
+  SELECT count(*), min(b), substr(b,1,1), min(a), max(a) FROM t5
+   GROUP BY 3 ORDER BY 1;
+
+CREATE VIEW v13(a,b,c,d,e) AS
+  SELECT a,b,c,d,e FROM t1
+  UNION SELECT a,b,c,d,e FROM t2
+  UNION SELECT a,b,c,d,e FROM t3;
+CREATE VIEW v23(a,b,c,d,e) AS
+  SELECT a,b,c,d,e FROM t1
+  EXCEPT SELECT a,b,c,d,e FROM t1 WHERE b<25;
+
+CREATE VIEW v60(a,b,c,d,e) AS
+  SELECT t1.a,t2.b,t1.c,t2.d,t1.e
+    FROM t1 LEFT JOIN t2 ON (t1.a=t2.b);
+CREATE VIEW v61(a,b,c,d,e) AS
+  SELECT t2.a,t3.b,t2.c,t3.d,t2.e
+    FROM t2 LEFT JOIN t3 ON (t2.a=t3.a);
+CREATE VIEW v62(a,b,c,d,e) AS
+  SELECT t1.a,t2.b,t3.c,t4.d,t5.b
+    FROM t1 JOIN t2 ON (t1.a=t2.b)
+            JOIN t3 ON (t1.a=t3.a)
+            JOIN t4 ON (t4.b=t3.b)
+            LEFT JOIN t5 ON (t5.a=t1.c);
+CREATE VIEW v70(a,b,c,d,e) AS
+  WITH RECURSIVE c0(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c0 WHERE x<9)
+  SELECT x, b, c, d, e FROM c0 JOIN t1 ON (t1.a=50-c0.x);
+COMMIT;
+VACUUM;
+.shell bin2c testdb01.db
diff --git a/test/optfuzz.c b/test/optfuzz.c
new file mode 100644
index 0000000000000000000000000000000000000000..2acb0ce350c2bebb3a0e2bba70550fa27a1d552d
--- /dev/null
+++ b/test/optfuzz.c
@@ -0,0 +1,308 @@
+/*
+** 2018-03-21
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** This program attempts to verify the correctness of the SQLite query
+** optimizer by fuzzing.
+**
+** The input is an SQL script, presumably generated by a fuzzer.  The
+** argument is the name of the input.  If no files are named, standard
+** input is read.
+**
+** The SQL script is run twice, once with optimization enabled, and again
+** with optimization disabled.  If the output is not equivalent, an error
+** is printed and the program returns non-zero.
+*/
+
+/* Include the SQLite amalgamation, after making appropriate #defines.
+*/
+#define SQLITE_THREADSAFE 0
+#define SQLITE_OMIT_LOAD_EXTENSION 1
+#include "sqlite3.c"
+
+/* Content of the read-only test database */
+#include "optfuzz-db01.c"
+
+/*
+** Prepare a single SQL statement.  Panic if anything goes wrong
+*/
+static sqlite3_stmt *prepare_sql(sqlite3 *db, const char *zFormat, ...){
+  char *zSql;
+  int rc;
+  sqlite3_stmt *pStmt = 0;
+  va_list ap;
+
+  va_start(ap, zFormat);
+  zSql = sqlite3_vmprintf(zFormat, ap);
+  va_end(ap);
+  rc = sqlite3_prepare_v2(db, zSql, -1, &pStmt, 0);
+  if( rc ){
+    printf("Error: %s\nSQL: %s\n",
+           sqlite3_errmsg(db), zSql);
+    exit(1);
+  }
+  sqlite3_free(zSql);
+  return pStmt;
+}
+
+/*
+** Run SQL.  Panic if anything goes wrong
+*/
+static void run_sql(sqlite3 *db, const char *zFormat, ...){
+  char *zSql;
+  int rc;
+  char *zErr = 0;
+  va_list ap;
+
+  va_start(ap, zFormat);
+  zSql = sqlite3_vmprintf(zFormat, ap);
+  va_end(ap);
+  rc = sqlite3_exec(db, zSql, 0, 0, &zErr);
+  if( rc || zErr ){
+    printf("Error: %s\nsqlite3_errmsg: %s\nSQL: %s\n",
+           zErr, sqlite3_errmsg(db), zSql);
+    exit(1);
+  }
+  sqlite3_free(zSql);
+}
+
+/*
+** Run one or more SQL statements contained in zSql against database dbRun.
+** Store the input in database dbOut.
+*/
+static int optfuzz_exec(
+  sqlite3 *dbRun,             /* The database on which the SQL executes */
+  const char *zSql,           /* The SQL to be executed */
+  sqlite3 *dbOut,             /* Store results in this database */
+  const char *zOutTab,        /* Store results in this table of dbOut */
+  int *pnStmt,                /* Write the number of statements here */
+  int *pnRow,                 /* Write the number of rows here */
+  int bTrace                  /* Print query results if true */
+){
+  int rc = SQLITE_OK;         /* Return code */
+  const char *zLeftover;      /* Tail of unprocessed SQL */
+  sqlite3_stmt *pStmt = 0;    /* The current SQL statement */
+  sqlite3_stmt *pIns = 0;     /* Statement to insert into dbOut */
+  const char *zCol;           /* Single column value */
+  int nCol;                   /* Number of output columns */
+  char zLine[4000];           /* Complete row value */
+
+  run_sql(dbOut, "BEGIN");
+  run_sql(dbOut, "CREATE TABLE IF NOT EXISTS staging(x TEXT)");
+  run_sql(dbOut, "CREATE TABLE IF NOT EXISTS \"%w\"(x TEXT)", zOutTab);
+  pIns = prepare_sql(dbOut, "INSERT INTO staging(x) VALUES(?1)");
+  *pnRow = *pnStmt = 0;
+  while( rc==SQLITE_OK && zSql && zSql[0] ){
+    zLeftover = 0;
+    rc = sqlite3_prepare_v2(dbRun, zSql, -1, &pStmt, &zLeftover);
+    zSql = zLeftover;
+    assert( rc==SQLITE_OK || pStmt==0 );
+    if( rc!=SQLITE_OK ){
+      printf("Error with [%s]\n%s\n", zSql, sqlite3_errmsg(dbRun));
+      break;
+    }
+    if( !pStmt ) continue;
+    (*pnStmt)++;
+    nCol = sqlite3_column_count(pStmt);
+    run_sql(dbOut, "DELETE FROM staging;");
+    while( sqlite3_step(pStmt)==SQLITE_ROW ){
+      int i, j;
+      for(i=j=0; i<nCol && j<sizeof(zLine)-50; i++){
+        int eType = sqlite3_column_type(pStmt, i);
+        if( eType==SQLITE_NULL ){
+          zCol = "NULL";
+        }else{
+          zCol = (const char*)sqlite3_column_text(pStmt, i);
+        }
+        if( i ) zLine[j++] = ',';
+        if( eType==SQLITE_TEXT ){
+          sqlite3_snprintf(sizeof(zLine)-j, zLine+j, "'%q'", zCol);
+        }else{
+          sqlite3_snprintf(sizeof(zLine)-j, zLine+j, "%s", zCol);
+        }
+        j += (int)strlen(zLine+j);
+      }
+      /* Detect if any row is too large and throw an error, because we will
+      ** want to go back and look more closely at that case */
+      if( j>=sizeof(zLine)-100 ){
+        printf("Excessively long output line: %d bytes\n" ,j);
+        exit(1);
+      }
+      if( bTrace ){
+        printf("%s\n", zLine);
+      }
+      (*pnRow)++;
+      sqlite3_bind_text(pIns, 1, zLine, j, SQLITE_TRANSIENT);
+      rc = sqlite3_step(pIns);
+      assert( rc==SQLITE_DONE );
+      rc = sqlite3_reset(pIns);
+    }
+    run_sql(dbOut,
+      "INSERT INTO \"%w\"(x) VALUES('### %q ###')",
+      zOutTab, sqlite3_sql(pStmt)
+    );
+    run_sql(dbOut, 
+      "INSERT INTO \"%w\"(x) SELECT group_concat(x,char(10))"
+      "  FROM (SELECT x FROM staging ORDER BY x)",
+      zOutTab
+    );
+    run_sql(dbOut, "COMMIT");
+    sqlite3_finalize(pStmt);
+    pStmt = 0;
+  }
+  sqlite3_finalize(pStmt);
+  sqlite3_finalize(pIns);
+  return rc;
+}
+
+/*
+** Read the content of file zName into memory obtained from sqlite3_malloc64()
+** and return a pointer to the buffer. The caller is responsible for freeing
+** the memory.
+**
+** If parameter pnByte is not NULL, (*pnByte) is set to the number of bytes
+** read.
+**
+** For convenience, a nul-terminator byte is always appended to the data read
+** from the file before the buffer is returned. This byte is not included in
+** the final value of (*pnByte), if applicable.
+**
+** NULL is returned if any error is encountered. The final value of *pnByte
+** is undefined in this case.
+*/
+static char *readFile(const char *zName, int *pnByte){
+  FILE *in = fopen(zName, "rb");
+  long nIn;
+  size_t nRead;
+  char *pBuf;
+  if( in==0 ) return 0;
+  fseek(in, 0, SEEK_END);
+  nIn = ftell(in);
+  rewind(in);
+  pBuf = sqlite3_malloc64( nIn+1 );
+  if( pBuf==0 ) return 0;
+  nRead = fread(pBuf, nIn, 1, in);
+  fclose(in);
+  if( nRead!=1 ){
+    sqlite3_free(pBuf);
+    return 0;
+  }
+  pBuf[nIn] = 0;
+  if( pnByte ) *pnByte = nIn;
+  return pBuf;
+}
+
+int main(int argc, char **argv){
+  int nIn = 0;               /* Number of input files */
+  char **azIn = 0;           /* Names of input files */
+  sqlite3 *dbOut = 0;        /* Database to hold results */
+  sqlite3 *dbRun = 0;        /* Database used for tests */
+  int bTrace = 0;            /* Show query results */
+  int bShowValid = 0;        /* Just list inputs that are valid SQL */
+  int nRow, nStmt;           /* Number of rows and statements */
+  int i, rc;
+
+  for(i=1; i<argc; i++){
+    const char *z = argv[i];
+    if( z[0]=='-' && z[1]=='-' ) z++;
+    if( strcmp(z,"-help")==0 ){
+      printf("Usage: %s [OPTIONS] FILENAME ...\n", argv[0]);
+      printf("Options:\n");
+      printf("  --help               Show his message\n");
+      printf("  --output-trace       Show each line of SQL output\n");
+      printf("  --valid-sql          List FILEs that are valid SQL\n");
+      return 0;
+    }
+    else if( strcmp(z,"-output-trace")==0 ){
+      bTrace = 1;
+    }
+    else if( strcmp(z,"-valid-sql")==0 ){
+      bShowValid = 1;
+    }
+    else if( z[0]=='-' ){
+      printf("unknown option \"%s\".  Use --help for details\n", argv[i]);
+      return 1;
+    }
+    else {
+      nIn++;
+      azIn = realloc(azIn, sizeof(azIn[0])*nIn);
+      if( azIn==0 ){
+        printf("out of memory\n");
+        exit(1);
+      }
+      azIn[nIn-1] = argv[i];
+    }
+  }
+
+  sqlite3_open(":memory:", &dbOut);
+  sqlite3_open(":memory:", &dbRun);
+  sqlite3_deserialize(dbRun, "main", data001, sizeof(data001),
+                      sizeof(data001), SQLITE_DESERIALIZE_READONLY);
+  for(i=0; i<nIn; i++){
+    char *zSql = readFile(azIn[i], 0);
+    sqlite3_stmt *pCk;
+    sqlite3_exec(dbRun, "ROLLBACK", 0, 0, 0);
+    if( bShowValid ){
+      rc = sqlite3_exec(dbRun, zSql, 0, 0, 0);
+      if( rc==SQLITE_OK ) printf("%s\n", azIn[i]);
+      sqlite3_free(zSql);
+      continue;
+    }
+    sqlite3_test_control(SQLITE_TESTCTRL_OPTIMIZATIONS, dbRun, 0);
+    if( bTrace ) printf("%s: Optimized\n", azIn[i]);
+    rc = optfuzz_exec(dbRun, zSql, dbOut, "opt", &nStmt, &nRow, bTrace);
+    if( rc ){
+      printf("%s: optimized run failed: %s\n",
+            azIn[i], sqlite3_errmsg(dbRun));
+    }else{
+      sqlite3_test_control(SQLITE_TESTCTRL_OPTIMIZATIONS, dbRun, 0xffff);
+      if( bTrace ) printf("%s: Non-optimized\n", azIn[i]);
+      rc = optfuzz_exec(dbRun, zSql, dbOut, "noopt", &nStmt, &nRow, bTrace);
+      if( rc ){
+        printf("%s: non-optimized run failed: %s\n",
+              azIn[i], sqlite3_errmsg(dbRun));
+        exit(1);
+      }
+      pCk = prepare_sql(dbOut,
+           "SELECT (SELECT group_concat(x,char(10)) FROM opt)=="
+           "       (SELECT group_concat(x,char(10)) FROM noopt)");
+      rc = sqlite3_step(pCk);
+      if( rc!=SQLITE_ROW ){
+        printf("%s: comparison failed\n", sqlite3_errmsg(dbOut));
+        exit(1);
+      }
+      if( !sqlite3_column_int(pCk, 0) ){
+        printf("%s: opt/no-opt outputs differ\n", azIn[i]);
+        pCk = prepare_sql(dbOut,
+           "SELECT group_concat(x,char(10)) FROM opt "
+           "UNION ALL "
+           "SELECT group_concat(x,char(10)) FROM noopt");
+        sqlite3_step(pCk);
+        printf("opt:\n%s\n", sqlite3_column_text(pCk,0));
+        sqlite3_step(pCk);
+        printf("noopt:\n%s\n", sqlite3_column_text(pCk,0));
+        exit(1);
+      }else{
+        printf("%s: %d stmts %d rows ok\n", azIn[i], nStmt, nRow);
+      }
+      sqlite3_finalize(pCk);
+    }
+    sqlite3_free(zSql);
+  }
+  sqlite3_close(dbRun);
+  sqlite3_close(dbOut);    
+  free(azIn);
+  if( sqlite3_memory_used() ){
+    printf("Memory leak of %lld bytes\n", sqlite3_memory_used());
+    exit(1);
+  }
+  return 0;
+}
diff --git a/test/orderby1.test b/test/orderby1.test
new file mode 100644
index 0000000000000000000000000000000000000000..41444a44c30ba851dc58ff6ed3d857b6849d17a8
--- /dev/null
+++ b/test/orderby1.test
@@ -0,0 +1,569 @@
+# 2012 Sept 27
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing that the optimizations that disable
+# ORDER BY clauses when the natural order of a query is correct.
+#
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix orderby1
+
+# Generate test data for a join.  Verify that the join gets the
+# correct answer.
+#
+do_test 1.0 {
+  db eval {
+    BEGIN;
+    CREATE TABLE album(
+      aid INTEGER PRIMARY KEY,
+      title TEXT UNIQUE NOT NULL
+    );
+    CREATE TABLE track(
+      tid INTEGER PRIMARY KEY,
+      aid INTEGER NOT NULL REFERENCES album,
+      tn INTEGER NOT NULL,
+      name TEXT,
+      UNIQUE(aid, tn)
+    );
+    INSERT INTO album VALUES(1, '1-one'), (2, '2-two'), (3, '3-three');
+    INSERT INTO track VALUES
+        (NULL, 1, 1, 'one-a'),
+        (NULL, 2, 2, 'two-b'),
+        (NULL, 3, 3, 'three-c'),
+        (NULL, 1, 3, 'one-c'),
+        (NULL, 2, 1, 'two-a'),
+        (NULL, 3, 1, 'three-a');
+    ANALYZE;
+    COMMIT;
+  }
+} {}
+do_test 1.1a {
+  db eval {
+    SELECT name FROM album JOIN track USING (aid) ORDER BY title, tn
+  }
+} {one-a one-c two-a two-b three-a three-c}
+
+# Verify that the ORDER BY clause is optimized out
+#
+do_test 1.1b {
+  db eval {
+    EXPLAIN QUERY PLAN
+    SELECT name FROM album CROSS JOIN track USING (aid) ORDER BY title, tn
+  }
+} {~/ORDER BY/}  ;# ORDER BY optimized out
+
+# The same query with ORDER BY clause optimization disabled via + operators
+# should give exactly the same answer.
+#
+do_test 1.2a {
+  db eval {
+    SELECT name FROM album JOIN track USING (aid) ORDER BY +title, +tn
+  }
+} {one-a one-c two-a two-b three-a three-c}
+
+# The output is sorted manually in this case.
+#
+do_test 1.2b {
+  db eval {
+    EXPLAIN QUERY PLAN
+    SELECT name FROM album JOIN track USING (aid) ORDER BY +title, +tn
+  }
+} {/ORDER BY/}   ;# separate sorting pass due to "+" on ORDER BY terms
+
+# The same query with ORDER BY optimizations turned off via built-in test.
+#
+do_test 1.3a {
+  optimization_control db order-by-idx-join 0
+  db cache flush
+  db eval {
+    SELECT name FROM album JOIN track USING (aid) ORDER BY title, tn
+  }
+} {one-a one-c two-a two-b three-a three-c}
+do_test 1.3b {
+  db eval {
+    EXPLAIN QUERY PLAN
+    SELECT name FROM album JOIN track USING (aid) ORDER BY title, tn
+  }
+} {/ORDER BY/}   ;# separate sorting pass due to disabled optimization
+optimization_control db all 1
+db cache flush
+
+# Reverse order sorts
+#
+do_test 1.4a {
+  db eval {
+    SELECT name FROM album JOIN track USING (aid) ORDER BY title DESC, tn
+  }
+} {three-a three-c two-a two-b one-a one-c}
+do_test 1.4b {
+  db eval {
+    SELECT name FROM album JOIN track USING (aid) ORDER BY +title DESC, +tn
+  }
+} {three-a three-c two-a two-b one-a one-c}  ;# verify same order after sorting
+do_test 1.4c {
+  db eval {
+    EXPLAIN QUERY PLAN
+    SELECT name FROM album JOIN track USING (aid) ORDER BY title DESC, tn
+  }
+} {~/ORDER BY/}  ;# ORDER BY suppressed due to uniqueness constraints
+
+do_test 1.5a {
+  db eval {
+    SELECT name FROM album JOIN track USING (aid) ORDER BY title, tn DESC
+  }
+} {one-c one-a two-b two-a three-c three-a}
+do_test 1.5b {
+  db eval {
+    SELECT name FROM album JOIN track USING (aid) ORDER BY +title, +tn DESC
+  }
+} {one-c one-a two-b two-a three-c three-a}  ;# verify same order after sorting
+do_test 1.5c {
+  db eval {
+    EXPLAIN QUERY PLAN
+    SELECT name FROM album JOIN track USING (aid) ORDER BY title, tn DESC
+  }
+} {~/ORDER BY/}  ;# ORDER BY suppressed due to uniqueness constraints
+
+do_test 1.6a {
+  db eval {
+    SELECT name FROM album CROSS JOIN track USING (aid)
+     ORDER BY title DESC, tn DESC
+  }
+} {three-c three-a two-b two-a one-c one-a}
+do_test 1.6b {
+  db eval {
+    SELECT name FROM album CROSS JOIN track USING (aid)
+     ORDER BY +title DESC, +tn DESC
+  }
+} {three-c three-a two-b two-a one-c one-a}  ;# verify same order after sorting
+do_test 1.6c {
+  db eval {
+    EXPLAIN QUERY PLAN
+    SELECT name FROM album CROSS JOIN track USING (aid)
+     ORDER BY title DESC, tn DESC
+  }
+} {~/ORDER BY/}  ;# ORDER BY 
+
+
+# Reconstruct the test data to use indices rather than integer primary keys.
+#
+do_test 2.0 {
+  db eval {
+    BEGIN;
+    DROP TABLE album;
+    DROP TABLE track;
+    CREATE TABLE album(
+      aid INT PRIMARY KEY,
+      title TEXT NOT NULL
+    );
+    CREATE INDEX album_i1 ON album(title, aid);
+    CREATE TABLE track(
+      aid INTEGER NOT NULL REFERENCES album,
+      tn INTEGER NOT NULL,
+      name TEXT,
+      UNIQUE(aid, tn)
+    );
+    INSERT INTO album VALUES(1, '1-one'), (20, '2-two'), (3, '3-three');
+    INSERT INTO track VALUES
+        (1,  1, 'one-a'),
+        (20, 2, 'two-b'),
+        (3,  3, 'three-c'),
+        (1,  3, 'one-c'),
+        (20, 1, 'two-a'),
+        (3,  1, 'three-a');
+    ANALYZE;
+    COMMIT;
+  }
+} {}
+do_test 2.1a {
+  db eval {
+    SELECT name FROM album JOIN track USING (aid) ORDER BY title, tn
+  }
+} {one-a one-c two-a two-b three-a three-c}
+
+# Verify that the ORDER BY clause is optimized out
+#
+do_test 2.1b {
+  db eval {
+    EXPLAIN QUERY PLAN
+    SELECT name FROM album JOIN track USING (aid) ORDER BY title, tn
+  }
+} {/ORDER BY/}  ;# ORDER BY required because of missing aid term in ORDER BY
+
+do_test 2.1c {
+  db eval {
+    SELECT name FROM album JOIN track USING (aid) ORDER BY title, aid, tn
+  }
+} {one-a one-c two-a two-b three-a three-c}
+do_test 2.1d {
+  db eval {
+    EXPLAIN QUERY PLAN
+    SELECT name FROM album JOIN track USING (aid) ORDER BY title, aid, tn
+  }
+} {/ORDER BY/}  ;# ORDER BY required in this case
+
+# The same query with ORDER BY clause optimization disabled via + operators
+# should give exactly the same answer.
+#
+do_test 2.2a {
+  db eval {
+    SELECT name FROM album JOIN track USING (aid) ORDER BY +title, +tn
+  }
+} {one-a one-c two-a two-b three-a three-c}
+
+# The output is sorted manually in this case.
+#
+do_test 2.2b {
+  db eval {
+    EXPLAIN QUERY PLAN
+    SELECT name FROM album JOIN track USING (aid) ORDER BY +title, +tn
+  }
+} {/ORDER BY/}   ;# separate sorting pass due to "+" on ORDER BY terms
+
+# The same query with ORDER BY optimizations turned off via built-in test.
+#
+do_test 2.3a {
+  optimization_control db order-by-idx-join 0
+  db cache flush
+  db eval {
+    SELECT name FROM album JOIN track USING (aid) ORDER BY title, tn
+  }
+} {one-a one-c two-a two-b three-a three-c}
+do_test 2.3b {
+  db eval {
+    EXPLAIN QUERY PLAN
+    SELECT name FROM album JOIN track USING (aid) ORDER BY title, tn
+  }
+} {/ORDER BY/}   ;# separate sorting pass due to disabled optimization
+optimization_control db all 1
+db cache flush
+
+# Reverse order sorts
+#
+do_test 2.4a {
+  db eval {
+    SELECT name FROM album JOIN track USING (aid) ORDER BY title DESC, tn
+  }
+} {three-a three-c two-a two-b one-a one-c}
+do_test 2.4b {
+  db eval {
+    SELECT name FROM album JOIN track USING (aid) ORDER BY +title DESC, +tn
+  }
+} {three-a three-c two-a two-b one-a one-c}  ;# verify same order after sorting
+do_test 2.4c {
+  db eval {
+    EXPLAIN QUERY PLAN
+    SELECT name FROM album JOIN track USING (aid) ORDER BY title DESC, tn
+  }
+} {/ORDER BY/}  ;# separate sorting pass due to mixed DESC/ASC
+
+
+do_test 2.5a {
+  db eval {
+    SELECT name FROM album JOIN track USING (aid) ORDER BY title, tn DESC
+  }
+} {one-c one-a two-b two-a three-c three-a}
+do_test 2.5b {
+  db eval {
+    SELECT name FROM album JOIN track USING (aid) ORDER BY +title, +tn DESC
+  }
+} {one-c one-a two-b two-a three-c three-a}  ;# verify same order after sorting
+do_test 2.5c {
+  db eval {
+    EXPLAIN QUERY PLAN
+    SELECT name FROM album JOIN track USING (aid) ORDER BY title, tn DESC
+  }
+} {/ORDER BY/}  ;# separate sorting pass due to mixed ASC/DESC
+
+do_test 2.6a {
+  db eval {
+    SELECT name FROM album JOIN track USING (aid) ORDER BY title DESC, tn DESC
+  }
+} {three-c three-a two-b two-a one-c one-a}
+do_test 2.6b {
+  db eval {
+    SELECT name FROM album JOIN track USING (aid) ORDER BY +title DESC, +tn DESC
+  }
+} {three-c three-a two-b two-a one-c one-a}  ;# verify same order after sorting
+do_test 2.6c {
+  db eval {
+    EXPLAIN QUERY PLAN
+    SELECT name FROM album JOIN track USING (aid) ORDER BY title DESC, tn DESC
+  }
+} {/ORDER BY/}  ;# ORDER BY required
+
+
+# Generate another test dataset, but this time using mixed ASC/DESC indices.
+#
+do_test 3.0 {
+  db eval {
+    BEGIN;
+    DROP TABLE album;
+    DROP TABLE track;
+    CREATE TABLE album(
+      aid INTEGER PRIMARY KEY,
+      title TEXT UNIQUE NOT NULL
+    );
+    CREATE TABLE track(
+      tid INTEGER PRIMARY KEY,
+      aid INTEGER NOT NULL REFERENCES album,
+      tn INTEGER NOT NULL,
+      name TEXT,
+      UNIQUE(aid ASC, tn DESC)
+    );
+    INSERT INTO album VALUES(1, '1-one'), (2, '2-two'), (3, '3-three');
+    INSERT INTO track VALUES
+        (NULL, 1, 1, 'one-a'),
+        (NULL, 2, 2, 'two-b'),
+        (NULL, 3, 3, 'three-c'),
+        (NULL, 1, 3, 'one-c'),
+        (NULL, 2, 1, 'two-a'),
+        (NULL, 3, 1, 'three-a');
+    ANALYZE;
+    COMMIT;
+  }
+} {}
+do_test 3.1a {
+  db eval {
+    SELECT name FROM album CROSS JOIN track USING (aid) ORDER BY title, tn DESC
+  }
+} {one-c one-a two-b two-a three-c three-a}
+
+# Verify that the ORDER BY clause is optimized out
+#
+do_test 3.1b {
+  db eval {
+    EXPLAIN QUERY PLAN
+    SELECT name FROM album CROSS JOIN track USING (aid) ORDER BY title, tn DESC
+  }
+} {~/ORDER BY/}  ;# ORDER BY optimized out
+
+# The same query with ORDER BY clause optimization disabled via + operators
+# should give exactly the same answer.
+#
+do_test 3.2a {
+  db eval {
+    SELECT name FROM album JOIN track USING (aid) ORDER BY +title, +tn DESC
+  }
+} {one-c one-a two-b two-a three-c three-a}
+
+# The output is sorted manually in this case.
+#
+do_test 3.2b {
+  db eval {
+    EXPLAIN QUERY PLAN
+    SELECT name FROM album JOIN track USING (aid) ORDER BY +title, +tn DESC
+  }
+} {/ORDER BY/}   ;# separate sorting pass due to "+" on ORDER BY terms
+
+# The same query with ORDER BY optimizations turned off via built-in test.
+#
+do_test 3.3a {
+  optimization_control db order-by-idx-join 0
+  db cache flush
+  db eval {
+    SELECT name FROM album JOIN track USING (aid) ORDER BY title, tn DESC
+  }
+} {one-c one-a two-b two-a three-c three-a}
+do_test 3.3b {
+  db eval {
+    EXPLAIN QUERY PLAN
+    SELECT name FROM album JOIN track USING (aid) ORDER BY title, tn DESC
+  }
+} {/ORDER BY/}   ;# separate sorting pass due to disabled optimization
+optimization_control db all 1
+db cache flush
+
+# Without the mixed ASC/DESC on ORDER BY
+#
+do_test 3.4a {
+  db eval {
+    SELECT name FROM album JOIN track USING (aid) ORDER BY title, tn
+  }
+} {one-a one-c two-a two-b three-a three-c}
+do_test 3.4b {
+  db eval {
+    SELECT name FROM album JOIN track USING (aid) ORDER BY +title, +tn
+  }
+} {one-a one-c two-a two-b three-a three-c}  ;# verify same order after sorting
+do_test 3.4c {
+  db eval {
+    EXPLAIN QUERY PLAN
+    SELECT name FROM album JOIN track USING (aid) ORDER BY title, tn
+  }
+} {~/ORDER BY/}  ;# ORDER BY suppressed by uniqueness constraints
+
+do_test 3.5a {
+  db eval {
+    SELECT name FROM album JOIN track USING (aid) ORDER BY title DESC, tn DESC
+  }
+} {three-c three-a two-b two-a one-c one-a}
+do_test 3.5b {
+  db eval {
+    SELECT name FROM album JOIN track USING (aid) ORDER BY +title DESC, +tn DESC
+  }
+} {three-c three-a two-b two-a one-c one-a}  ;# verify same order after sorting
+do_test 3.5c {
+  db eval {
+    EXPLAIN QUERY PLAN
+    SELECT name FROM album JOIN track USING (aid) ORDER BY title DESC, tn DESC
+  }
+} {~/ORDER BY/}  ;# ORDER BY suppressed by uniqueness constraints
+
+
+do_test 3.6a {
+  db eval {
+    SELECT name FROM album CROSS JOIN track USING (aid) ORDER BY title DESC, tn
+  }
+} {three-a three-c two-a two-b one-a one-c}
+do_test 3.6b {
+  db eval {
+    SELECT name FROM album CROSS JOIN track USING (aid)
+     ORDER BY +title DESC, +tn
+  }
+} {three-a three-c two-a two-b one-a one-c}  ;# verify same order after sorting
+do_test 3.6c {
+  db eval {
+    EXPLAIN QUERY PLAN
+    SELECT name FROM album CROSS JOIN track USING (aid) ORDER BY title DESC, tn
+  }
+} {~/ORDER BY/}  ;# inverted ASC/DESC is optimized out
+
+# Ticket 5ed1772895bf3deeab78c5e3519b1da9165c541b (2013-06-04)
+# Incorrect ORDER BY on an indexed JOIN
+#
+do_test 4.0 {
+  db eval {
+    CREATE TABLE t41(a INT UNIQUE NOT NULL, b INT NOT NULL);
+    CREATE INDEX t41ba ON t41(b,a);
+    CREATE TABLE t42(x INT NOT NULL REFERENCES t41(a), y INT NOT NULL);
+    CREATE UNIQUE INDEX t42xy ON t42(x,y);
+    INSERT INTO t41 VALUES(1,1),(3,1);
+    INSERT INTO t42 VALUES(1,13),(1,15),(3,14),(3,16);
+    
+    SELECT b, y FROM t41 CROSS JOIN t42 ON x=a ORDER BY b, y;
+  }
+} {1 13 1 14 1 15 1 16}
+
+# No sorting of queries that omit the FROM clause.
+#
+do_eqp_test 5.0 {
+  SELECT 5 ORDER BY 1
+} {
+  QUERY PLAN
+  `--SCAN CONSTANT ROW
+}
+do_execsql_test 5.1 {
+  EXPLAIN QUERY PLAN SELECT 5 UNION ALL SELECT 3 ORDER BY 1
+} {~/B-TREE/}
+do_execsql_test 5.2 {
+  SELECT 5 UNION ALL SELECT 3 ORDER BY 1
+} {3 5}
+do_execsql_test 5.3 {
+  SELECT 986 AS x GROUP BY X ORDER BY X
+} {986}
+
+# The following test (originally derived from a single test within fuzz.test)
+# verifies that a PseudoTable cursor is not closed prematurely in a deeply
+# nested query.  This test caused a segfault on 3.8.5 beta.
+#
+do_execsql_test 6.0 {
+  CREATE TABLE abc(a, b, c);
+  INSERT INTO abc VALUES(1, 2, 3);
+  INSERT INTO abc VALUES(4, 5, 6);
+  INSERT INTO abc VALUES(7, 8, 9);
+  SELECT (
+    SELECT 'hardware' FROM ( 
+      SELECT 'software' ORDER BY 'firmware' ASC, 'sportswear' DESC 
+    ) GROUP BY 1 HAVING length(b)
+  )
+  FROM abc;
+} {hardware hardware hardware}
+
+# Here is a test for a query-planner problem reported on the SQLite
+# mailing list on 2014-09-18 by "Merike".  Beginning with version 3.8.0,
+# a separate sort was being used rather than using the single-column
+# index.  This was due to an oversight in the indexMightHelpWithOrderby()
+# routine in where.c.
+#
+do_execsql_test 7.0 {
+  CREATE TABLE t7(a,b);
+  CREATE INDEX t7a ON t7(a);
+  CREATE INDEX t7ab ON t7(a,b);
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t7 WHERE a=?1 ORDER BY rowid;
+} {~/ORDER BY/}
+
+#-------------------------------------------------------------------------
+# Test a partial sort large enough to cause the sorter to spill data
+# to disk.
+#
+reset_db
+do_execsql_test 8.0 {
+  PRAGMA cache_size = 5;
+  CREATE TABLE t1(a, b);
+  CREATE INDEX i1 ON t1(a);
+}
+
+do_eqp_test 8.1 {
+  SELECT * FROM t1 ORDER BY a, b;
+} {
+  QUERY PLAN
+  |--SCAN t1 USING INDEX i1
+  `--USE TEMP B-TREE FOR LAST TERM OF ORDER BY
+}
+
+do_execsql_test 8.2 {
+  WITH cnt(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM cnt WHERE i<10000
+  )
+  INSERT INTO t1 SELECT i%2, randomblob(500) FROM cnt;
+}
+
+do_test 8.3 {
+  db eval { SELECT * FROM t1 ORDER BY a, b } { incr res $a }
+  set res
+} 5000
+
+#---------------------------------------------------------------------------
+# https://www.sqlite.org/src/tktview/cb3aa0641d9a413841c004293a4fc06cdc122029
+#
+# Adverse interaction between scalar subqueries and the partial-sorting
+# logic.
+#
+do_execsql_test 9.0 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(x INTEGER PRIMARY KEY);
+  INSERT INTO t1 VALUES(1),(2);
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t2(y);
+  INSERT INTO t2 VALUES(9),(8),(3),(4);
+  SELECT (SELECT x||y FROM t2, t1 ORDER BY x, y);
+} {13}
+
+# Problem found by OSSFuzz on 2018-05-05.  This was caused by a new
+# optimization that had not been previously released.
+#
+do_execsql_test 10.0 {
+  CREATE TABLE t10(a,b);
+  INSERT INTO t10 VALUES(1,2),(8,9),(3,4),(5,4),(0,7);
+  CREATE INDEX t10b ON t10(b);
+  SELECT b, rowid, '^' FROM t10 ORDER BY b, a LIMIT 4;
+} {2 1 ^ 4 3 ^ 4 4 ^ 7 5 ^}
+
+do_catchsql_test 11.0 {
+  VALUES(2) EXCEPT SELECT '' ORDER BY abc
+} {1 {1st ORDER BY term does not match any column in the result set}}
+
+
+finish_test
diff --git a/test/orderby2.test b/test/orderby2.test
new file mode 100644
index 0000000000000000000000000000000000000000..cfd647715244a8e252ebb51e2a627e9646c999f5
--- /dev/null
+++ b/test/orderby2.test
@@ -0,0 +1,117 @@
+# 2012 Sept 27
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing that the optimizations that disable
+# ORDER BY clauses when the natural order of a query is correct.
+#
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix orderby2
+
+# Generate test data for a join.  Verify that the join gets the
+# correct answer.
+#
+do_test 1.0 {
+  db eval {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+    INSERT INTO t1 VALUES(1,11), (2,22);
+    CREATE TABLE t2(d, e, UNIQUE(d,e));
+    INSERT INTO t2 VALUES(10, 'ten'), (11,'eleven'), (12,'twelve'),
+                         (11, 'oneteen');
+  }
+} {}
+
+do_test 1.1a {
+  db eval {
+    SELECT e FROM t1, t2 WHERE a=1 AND d=b ORDER BY d, e;
+  }
+} {eleven oneteen}
+do_test 1.1b {
+  db eval {
+    EXPLAIN QUERY PLAN
+    SELECT e FROM t1, t2 WHERE a=1 AND d=b ORDER BY d, e;
+  }
+} {~/ORDER BY/}
+
+do_test 1.2a {
+  db eval {
+    SELECT e FROM t1, t2 WHERE a=1 AND d=b ORDER BY e;
+  }
+} {eleven oneteen}
+do_test 1.2b {
+  db eval {
+    EXPLAIN QUERY PLAN
+    SELECT e FROM t1, t2 WHERE a=1 AND d=b ORDER BY e;
+  }
+} {~/ORDER BY/}
+
+do_test 1.3a {
+  db eval {
+    SELECT e, b FROM t1, t2 WHERE a=1 ORDER BY d, e;
+  }
+} {ten 11 eleven 11 oneteen 11 twelve 11}
+do_test 1.3b {
+  db eval {
+    EXPLAIN QUERY PLAN
+    SELECT e, b FROM t1, t2 WHERE a=1 ORDER BY d, e;
+  }
+} {~/ORDER BY/}
+
+# The following tests derived from TH3 test module cov1/where34.test
+#
+do_test 2.0 {
+  db eval {
+    CREATE TABLE t31(a,b); CREATE INDEX t31ab ON t31(a,b);
+    CREATE TABLE t32(c,d); CREATE INDEX t32cd ON t32(c,d);
+    CREATE TABLE t33(e,f); CREATE INDEX t33ef ON t33(e,f);
+    CREATE TABLE t34(g,h); CREATE INDEX t34gh ON t34(g,h);
+    
+    INSERT INTO t31 VALUES(1,4), (2,3), (1,3);
+    INSERT INTO t32 VALUES(4,5), (3,6), (3,7), (4,8);
+    INSERT INTO t33 VALUES(5,9), (7,10), (6,11), (8,12), (8,13), (7,14);
+    INSERT INTO t34 VALUES(11,20), (10,21), (12,22), (9,23), (13,24),
+                          (14,25), (12,26);
+    SELECT a||','||c||','||e||','||g FROM t31, t32, t33, t34
+     WHERE c=b AND e=d AND g=f
+     ORDER BY a ASC, c ASC, e DESC, g ASC;
+  }
+} {1,3,7,10 1,3,7,14 1,3,6,11 1,4,8,12 1,4,8,12 1,4,8,13 1,4,5,9 2,3,7,10 2,3,7,14 2,3,6,11}
+do_test 2.1 {
+  db eval {
+    SELECT a||','||c||','||e||','||g FROM t31, t32, t33, t34
+     WHERE c=b AND e=d AND g=f
+     ORDER BY +a ASC, +c ASC, +e DESC, +g ASC;
+  }
+} {1,3,7,10 1,3,7,14 1,3,6,11 1,4,8,12 1,4,8,12 1,4,8,13 1,4,5,9 2,3,7,10 2,3,7,14 2,3,6,11}
+do_test 2.2 {
+  db eval {
+    SELECT a||','||c||','||e||','||g FROM t31, t32, t33, t34
+     WHERE c=b AND e=d AND g=f
+     ORDER BY a ASC, c ASC, e ASC, g ASC;
+  }
+} {1,3,6,11 1,3,7,10 1,3,7,14 1,4,5,9 1,4,8,12 1,4,8,12 1,4,8,13 2,3,6,11 2,3,7,10 2,3,7,14}
+do_test 2.3 {
+  optimization_control db cover-idx-scan off
+  db cache flush
+  db eval {
+    SELECT a||','||c||','||e||','||g FROM t31, t32, t33, t34
+     WHERE c=b AND e=d AND g=f
+     ORDER BY a ASC, c ASC, e ASC, g ASC;
+  }
+} {1,3,6,11 1,3,7,10 1,3,7,14 1,4,5,9 1,4,8,12 1,4,8,12 1,4,8,13 2,3,6,11 2,3,7,10 2,3,7,14}  
+optimization_control db all on
+db cache flush
+
+
+
+finish_test
diff --git a/test/orderby3.test b/test/orderby3.test
new file mode 100644
index 0000000000000000000000000000000000000000..f005f0d2e8b76ec9c141c5cc9c40994587f1c737
--- /dev/null
+++ b/test/orderby3.test
@@ -0,0 +1,123 @@
+# 2013 January 09
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing that the optimizations that disable
+# ORDER BY clauses work correctly on a 3-way join.  See ticket
+# http://www.sqlite.org/src/956e4d7f89
+#
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix orderby3
+
+# Generate test data for a join.  Verify that the join gets the
+# correct answer.
+#
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY);
+  CREATE TABLE t2(b INTEGER PRIMARY KEY, c INTEGER);
+  CREATE TABLE t3(d INTEGER);
+    
+  INSERT INTO t1 VALUES(1),(2),(3);
+    
+  INSERT INTO t2 VALUES(3, 1);
+  INSERT INTO t2 VALUES(4, 2);
+  INSERT INTO t2 VALUES(5, 3);
+    
+  INSERT INTO t3 VALUES(4),(3),(5);
+} {}
+do_execsql_test 1.1.asc {
+  SELECT t1.a
+    FROM t1, t2, t3
+   WHERE t1.a=t2.c AND t2.b=t3.d
+   ORDER BY t1.a;
+} {1 2 3}
+do_execsql_test 1.1.desc {
+  SELECT t1.a
+    FROM t1, t2, t3
+   WHERE t1.a=t2.c AND t2.b=t3.d
+   ORDER BY t1.a DESC;
+} {3 2 1}
+do_execsql_test 1.123.asc {
+  SELECT t1.a
+    FROM t1 CROSS JOIN t2 CROSS JOIN t3
+   WHERE t1.a=t2.c AND t2.b=t3.d
+   ORDER BY t1.a;
+} {1 2 3}
+do_execsql_test 1.123.desc {
+  SELECT t1.a
+    FROM t1 CROSS JOIN t2 CROSS JOIN t3
+   WHERE t1.a=t2.c AND t2.b=t3.d
+   ORDER BY t1.a DESC;
+} {3 2 1}
+do_execsql_test 1.132.asc {
+  SELECT t1.a
+    FROM t1 CROSS JOIN t3 CROSS JOIN t2
+   WHERE t1.a=t2.c AND t2.b=t3.d
+   ORDER BY t1.a;
+} {1 2 3}
+do_execsql_test 1.132.desc {
+  SELECT t1.a
+    FROM t1 CROSS JOIN t3 CROSS JOIN t2
+   WHERE t1.a=t2.c AND t2.b=t3.d
+   ORDER BY t1.a DESC;
+} {3 2 1}
+do_execsql_test 1.213.asc {
+  SELECT t1.a
+    FROM t2 CROSS JOIN t1 CROSS JOIN t3
+   WHERE t1.a=t2.c AND t2.b=t3.d
+   ORDER BY t1.a;
+} {1 2 3}
+do_execsql_test 1.213.desc {
+  SELECT t1.a
+    FROM t2 CROSS JOIN t1 CROSS JOIN t3
+   WHERE t1.a=t2.c AND t2.b=t3.d
+   ORDER BY t1.a DESC;
+} {3 2 1}
+do_execsql_test 1.231.asc {
+  SELECT t1.a
+    FROM t2 CROSS JOIN t3 CROSS JOIN t1
+   WHERE t1.a=t2.c AND t2.b=t3.d
+   ORDER BY t1.a;
+} {1 2 3}
+do_execsql_test 1.231.desc {
+  SELECT t1.a
+    FROM t2 CROSS JOIN t3 CROSS JOIN t1
+   WHERE t1.a=t2.c AND t2.b=t3.d
+   ORDER BY t1.a DESC;
+} {3 2 1}
+do_execsql_test 1.312.asc {
+  SELECT t1.a
+    FROM t3 CROSS JOIN t1 CROSS JOIN t2
+   WHERE t1.a=t2.c AND t2.b=t3.d
+   ORDER BY t1.a;
+} {1 2 3}
+do_execsql_test 1.312.desc {
+  SELECT t1.a
+    FROM t3 CROSS JOIN t1 CROSS JOIN t2
+   WHERE t1.a=t2.c AND t2.b=t3.d
+   ORDER BY t1.a DESC;
+} {3 2 1}
+do_execsql_test 1.321.asc {
+  SELECT t1.a
+    FROM t3 CROSS JOIN t2 CROSS JOIN t1
+   WHERE t1.a=t2.c AND t2.b=t3.d
+   ORDER BY t1.a;
+} {1 2 3}
+do_execsql_test 1.321.desc {
+  SELECT t1.a
+    FROM t3 CROSS JOIN t2 CROSS JOIN t1
+   WHERE t1.a=t2.c AND t2.b=t3.d
+   ORDER BY t1.a DESC;
+} {3 2 1}
+
+finish_test
diff --git a/test/orderby4.test b/test/orderby4.test
new file mode 100644
index 0000000000000000000000000000000000000000..ec6eb041f63042ed966d2373f5916d4bea9c8a4e
--- /dev/null
+++ b/test/orderby4.test
@@ -0,0 +1,56 @@
+# 2013 March 26
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing that the optimizations that disable
+# ORDER BY clauses work correctly on multi-value primary keys and
+# unique indices when only some prefix of the terms in the key are
+# used.  See ticket http://www.sqlite.org/src/info/a179fe74659
+#
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix orderby4
+
+# Generate test data for a join.  Verify that the join gets the
+# correct answer.
+#
+do_execsql_test 1.1 {
+  CREATE TABLE t1(a, b, PRIMARY KEY(a,b));
+  INSERT INTO t1 VALUES(1,1),(1,2);
+  CREATE TABLE t2(x, y, PRIMARY KEY(x,y));
+  INSERT INTO t2 VALUES(3,3),(4,4);
+  SELECT a, x FROM t1, t2 ORDER BY 1, 2;
+} {1 3 1 3 1 4 1 4}
+do_execsql_test 1.2 {
+  SELECT a, x FROM t1 CROSS JOIN t2 ORDER BY 1, 2;
+} {1 3 1 3 1 4 1 4}
+do_execsql_test 1.3 {
+  SELECT a, x FROM t2 CROSS JOIN t1 ORDER BY 1, 2;
+} {1 3 1 3 1 4 1 4}
+
+do_execsql_test 2.1 {
+  CREATE TABLE t3(a);
+  INSERT INTO t3 VALUES(1),(1);
+  CREATE INDEX t3a ON t3(a);
+  CREATE TABLE t4(x);
+  INSERT INTO t4 VALUES(3),(4);
+  CREATE INDEX t4x ON t4(x);
+  SELECT a, x FROM t3, t4 ORDER BY 1, 2;
+} {1 3 1 3 1 4 1 4}
+do_execsql_test 2.2 {
+  SELECT a, x FROM t3 CROSS JOIN t4 ORDER BY 1, 2;
+} {1 3 1 3 1 4 1 4}
+do_execsql_test 2.3 {
+  SELECT a, x FROM t4 CROSS JOIN t3 ORDER BY 1, 2;
+} {1 3 1 3 1 4 1 4}
+
+finish_test
diff --git a/test/orderby5.test b/test/orderby5.test
new file mode 100644
index 0000000000000000000000000000000000000000..ccdcf1de0c678e82a15d3c09c4fed8b1bdcf8ac6
--- /dev/null
+++ b/test/orderby5.test
@@ -0,0 +1,187 @@
+# 2013-06-14
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing that the optimizations that disable
+# ORDER BY clauses work correctly
+#
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix orderby5
+
+# Generate test data for a join.  Verify that the join gets the
+# correct answer.
+#
+do_execsql_test 1.1 {
+  CREATE TABLE t1(a,b,c);
+  CREATE INDEX t1bc ON t1(b,c);
+
+  EXPLAIN QUERY PLAN
+  SELECT DISTINCT a, b, c FROM t1 WHERE a=0;
+} {~/B-TREE/}
+do_execsql_test 1.2.1 {
+  EXPLAIN QUERY PLAN
+  SELECT DISTINCT a, c, b FROM t1 WHERE a=0;
+} {~/B-TREE/}
+do_execsql_test 1.2.2 {
+  EXPLAIN QUERY PLAN
+  SELECT DISTINCT a, c, b FROM t1 WHERE a='xyz' COLLATE nocase;
+} {/B-TREE/}
+do_execsql_test 1.2.3 {
+  EXPLAIN QUERY PLAN
+  SELECT DISTINCT a COLLATE nocase, c, b FROM t1 WHERE a='xyz';
+} {/B-TREE/}
+do_execsql_test 1.2.4 {
+  EXPLAIN QUERY PLAN
+  SELECT DISTINCT a COLLATE nocase, c, b FROM t1 WHERE a='xyz' COLLATE nocase;
+} {~/B-TREE/}
+do_execsql_test 1.3 {
+  EXPLAIN QUERY PLAN
+  SELECT DISTINCT b, a, c FROM t1 WHERE a=0;
+} {~/B-TREE/}
+do_execsql_test 1.4 {
+  EXPLAIN QUERY PLAN
+  SELECT DISTINCT b, c, a FROM t1 WHERE a=0;
+} {~/B-TREE/}
+do_execsql_test 1.5 {
+  EXPLAIN QUERY PLAN
+  SELECT DISTINCT c, a, b FROM t1 WHERE a=0;
+} {~/B-TREE/}
+do_execsql_test 1.6 {
+  EXPLAIN QUERY PLAN
+  SELECT DISTINCT c, b, a FROM t1 WHERE a=0;
+} {~/B-TREE/}
+do_execsql_test 1.7 {
+  EXPLAIN QUERY PLAN
+  SELECT DISTINCT c, b, a FROM t1 WHERE +a=0;
+} {/B-TREE/}
+
+# In some cases, it is faster to do repeated index lookups than it is to
+# sort.  But in other cases, it is faster to sort than to do repeated index
+# lookups.
+#
+do_execsql_test 2.1a {
+  CREATE TABLE t2(a,b,c);
+  CREATE INDEX t2bc ON t2(b,c);
+  ANALYZE;
+  INSERT INTO sqlite_stat1 VALUES('t1','t1bc','1000000 10 9');
+  INSERT INTO sqlite_stat1 VALUES('t2','t2bc','100 10 5');
+  ANALYZE sqlite_master;
+
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t2 WHERE a=0 ORDER BY a, b, c;
+} {~/B-TREE/}
+
+do_execsql_test 2.1b {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE likelihood(a=0, 0.03) ORDER BY a, b, c;
+} {/B-TREE/}
+
+do_execsql_test 2.2 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE +a=0 ORDER BY a, b, c;
+} {/B-TREE/}
+do_execsql_test 2.3 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a=0 ORDER BY b, a, c;
+} {~/B-TREE/}
+do_execsql_test 2.4 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a=0 ORDER BY b, c, a;
+} {~/B-TREE/}
+do_execsql_test 2.5 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a=0 ORDER BY a, c, b;
+} {/B-TREE/}
+do_execsql_test 2.6 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a=0 ORDER BY c, a, b;
+} {/B-TREE/}
+do_execsql_test 2.7 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1 WHERE a=0 ORDER BY c, b, a;
+} {/B-TREE/}
+
+
+do_execsql_test 3.0 {
+  CREATE TABLE t3(a INTEGER PRIMARY KEY, b, c, d, e, f);
+  CREATE INDEX t3bcde ON t3(b, c, d, e);
+  EXPLAIN QUERY PLAN
+  SELECT a FROM t3 WHERE b=2 AND c=3 ORDER BY d DESC, e DESC, b, c, a DESC;
+} {~/B-TREE/}
+do_execsql_test 3.1 {
+  DROP TABLE t3;
+  CREATE TABLE t3(a INTEGER PRIMARY KEY, b, c, d, e, f) WITHOUT rowid;
+  CREATE INDEX t3bcde ON t3(b, c, d, e);
+  EXPLAIN QUERY PLAN
+  SELECT a FROM t3 WHERE b=2 AND c=3 ORDER BY d DESC, e DESC, b, c, a DESC;
+} {~/B-TREE/}
+
+#-------------------------------------------------------------------------
+do_execsql_test 4.1.0 {
+  CREATE TABLE t4(b COLLATE nocase);
+  INSERT INTO t4 VALUES('abc');
+  INSERT INTO t4 VALUES('ABC');
+  INSERT INTO t4 VALUES('aBC');
+}
+do_execsql_test 4.1.1 {
+  SELECT * FROM t4 ORDER BY b COLLATE binary
+} {ABC aBC abc}
+do_execsql_test 4.1.2 {
+  SELECT * FROM t4 WHERE b='abc' ORDER BY b COLLATE binary
+} {ABC aBC abc}
+
+do_execsql_test 4.2.1 {
+  CREATE TABLE Records(typeID INTEGER, key TEXT COLLATE nocase, value TEXT);
+  CREATE INDEX RecordsIndex ON Records(typeID, key, value);
+}
+do_execsql_test 4.2.2 {
+  explain query plan
+  SELECT typeID, key, value FROM Records 
+  WHERE typeID = 2 AND key = 'x' 
+  ORDER BY key, value;
+} {~/TEMP B-TREE/}
+do_execsql_test 4.2.3 {
+  explain query plan
+  SELECT typeID, key, value FROM Records 
+  WHERE typeID = 2 AND (key = 'x' COLLATE binary)
+  ORDER BY key, value;
+} {~/TEMP B-TREE/}
+do_execsql_test 4.2.4 {
+  explain query plan
+  SELECT typeID, key, value FROM Records 
+  WHERE typeID = 2 
+  ORDER BY key, value;
+} {~/TEMP B-TREE/}
+
+db collate hello [list string match]
+do_execsql_test 4.3.1 {
+  CREATE TABLE t5(a INTEGER PRIMARY KEY, b COLLATE hello, c, d);
+}
+db close
+sqlite3 db test.db
+do_catchsql_test 4.3.2 {
+  SELECT a FROM t5 WHERE b='def' ORDER BY b;
+} {1 {no such collation sequence: hello}}
+
+# 2020-02-13 ticket 41c1456a6e61c0e7
+do_execsql_test 4.4.0 {
+  DROP TABLE t1;
+  CREATE TABLE t1(a);
+  DROP TABLE t2;
+  CREATE TABLE t2(b INTEGER PRIMARY KEY, c INT);
+  SELECT DISTINCT *
+    FROM t1 LEFT JOIN t2 ON b=c AND b=(SELECT a FROM t1)
+   WHERE c>10;
+} {}
+
+finish_test
diff --git a/test/orderby6.test b/test/orderby6.test
new file mode 100644
index 0000000000000000000000000000000000000000..403250ddb51a4464507a96d9757f5fc1bf765c25
--- /dev/null
+++ b/test/orderby6.test
@@ -0,0 +1,183 @@
+# 2014-03-21
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing that the block-sort optimization.
+#
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix orderby6
+
+# Run all tests twice.  Once with a normal table and a second time
+# with a WITHOUT ROWID table
+#
+foreach {tn rowidclause} {1 {} 2 {WITHOUT ROWID}} {
+
+  # Construct a table with 1000 rows and a split primary key
+  #
+  reset_db
+  do_test $tn.1 {
+    db eval "CREATE TABLE t1(a,b,c,PRIMARY KEY(b,c)) $rowidclause;"
+    db eval {
+      WITH RECURSIVE
+       cnt(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM cnt WHERE x<1000)
+     INSERT INTO t1 SELECT x, x%40, x/40 FROM cnt;
+    }
+  } {}
+
+  # Run various ORDER BY queries that can benefit from block-sort.
+  # Compare the output to the same output using a full-sort enforced
+  # by adding + to each term of the ORDER BY clause.
+  #
+  do_execsql_test $tn.2 {
+    SELECT b,a,c FROM t1 ORDER BY b,a,c;
+  } [db eval {SELECT b,a,c FROM t1 ORDER BY +b,+a,+c}]
+  do_execsql_test $tn.3 {
+    SELECT b,a,c FROM t1 ORDER BY b,c DESC,a;
+  } [db eval {SELECT b,a,c FROM t1 ORDER BY +b,+c DESC,+a}]
+  do_execsql_test $tn.4 {
+    SELECT b,a,c FROM t1 ORDER BY b DESC,c,a;
+  } [db eval {SELECT b,a,c FROM t1 ORDER BY +b DESC,+c,+a}]
+  do_execsql_test $tn.5 {
+    SELECT b,a,c FROM t1 ORDER BY b DESC,a,c;
+  } [db eval {SELECT b,a,c FROM t1 ORDER BY +b DESC,+a,+c}]
+
+  # LIMIT and OFFSET clauses on block-sort queries.
+  #
+  do_execsql_test $tn.11 {
+    SELECT a FROM t1 ORDER BY b, a LIMIT 10 OFFSET 20;
+  } {840 880 920 960 1000 1 41 81 121 161}
+  do_execsql_test $tn.11x {
+    SELECT a FROM t1 ORDER BY +b, a LIMIT 10 OFFSET 20;
+  } {840 880 920 960 1000 1 41 81 121 161}
+
+  do_execsql_test $tn.12 {
+    SELECT a FROM t1 ORDER BY b DESC, a LIMIT 10 OFFSET 20;
+  } {839 879 919 959 999 38 78 118 158 198}
+  do_execsql_test $tn.12 {
+    SELECT a FROM t1 ORDER BY +b DESC, a LIMIT 10 OFFSET 20;
+  } {839 879 919 959 999 38 78 118 158 198}
+
+  do_execsql_test $tn.13 {
+    SELECT a FROM t1 ORDER BY b, a DESC LIMIT 10 OFFSET 45;
+  } {161 121 81 41 1 962 922 882 842 802}
+  do_execsql_test $tn.13x {
+    SELECT a FROM t1 ORDER BY +b, a DESC LIMIT 10 OFFSET 45;
+  } {161 121 81 41 1 962 922 882 842 802}
+
+  do_execsql_test $tn.14 {
+    SELECT a FROM t1 ORDER BY b DESC, a LIMIT 10 OFFSET 45;
+  } {838 878 918 958 998 37 77 117 157 197}
+  do_execsql_test $tn.14x {
+    SELECT a FROM t1 ORDER BY +b DESC, a LIMIT 10 OFFSET 45;
+  } {838 878 918 958 998 37 77 117 157 197}
+
+  # Many test cases where the LIMIT+OFFSET window is in various
+  # alignments with block-sort boundaries.
+  #
+  foreach {tx limit offset orderby} {
+     1  10 24 {+b,+a}
+     2  10 25 {+b,+a}
+     3  10 26 {+b,+a}
+     4  10 39 {+b,+a}
+     5  10 40 {+b,+a}
+     6  10 41 {+b,+a}
+     7  27 24 {+b,+a}
+     8  27 49 {+b,+a}
+     11 10 24 {+b DESC,+a}
+     12 10 25 {+b DESC,+a}
+     13 10 26 {+b DESC,+a}
+     14 10 39 {+b DESC,+a}
+     15 10 40 {+b DESC,+a}
+     16 10 41 {+b DESC,+a}
+     17 27 24 {+b DESC,+a}
+     18 27 49 {+b DESC,+a}
+     21 10 24 {+b,+a DESC}
+     22 10 25 {+b,+a DESC}
+     23 10 26 {+b,+a DESC}
+     24 10 39 {+b,+a DESC}
+     25 10 40 {+b,+a DESC}
+     26 10 41 {+b,+a DESC}
+     27 27 24 {+b,+a DESC}
+     28 27 49 {+b,+a DESC}
+     31 10 24 {+b DESC,+a DESC}
+     32 10 25 {+b DESC,+a DESC}
+     33 10 26 {+b DESC,+a DESC}
+     34 10 39 {+b DESC,+a DESC}
+     35 10 40 {+b DESC,+a DESC}
+     36 10 41 {+b DESC,+a DESC}
+     37 27 24 {+b DESC,+a DESC}
+     38 27 49 {+b DESC,+a DESC}
+  } {
+    set sql1 "SELECT a FROM t1 ORDER BY $orderby LIMIT $limit OFFSET $offset;"
+    set sql2 [string map {+ {}} $sql1]
+    # puts $sql2\n$sql1\n[db eval $sql2]
+    do_test $tn.21.$tx {db eval $::sql2} [db eval $sql1]
+  }
+
+  ########################################################################
+  # A second test table, t2, has many columns open to sorting.
+  do_test $tn.31 {
+    db eval "CREATE TABLE t2(a,b,c,d,e,f,PRIMARY KEY(b,c,d,e,f)) $rowidclause;"
+    db eval {
+      WITH RECURSIVE
+       cnt(x) AS (VALUES(0) UNION ALL SELECT x+1 FROM cnt WHERE x<242)
+     INSERT INTO t2 SELECT x,  x%3, (x/3)%3, (x/9)%3, (x/27)%3, (x/81)%3
+                      FROM cnt;
+    }
+  } {}
+
+  do_execsql_test $tn.32 {
+    SELECT a FROM t2 ORDER BY b,c,d,e,f;
+  } [db eval {SELECT a FROM t2 ORDER BY +b,+c,+d,+e,+f;}]
+  do_execsql_test $tn.33 {
+    SELECT a FROM t2 ORDER BY b,c,d,e,+f;
+  } [db eval {SELECT a FROM t2 ORDER BY +b,+c,+d,+e,+f;}]
+  do_execsql_test $tn.34 {
+    SELECT a FROM t2 ORDER BY b,c,d,+e,+f;
+  } [db eval {SELECT a FROM t2 ORDER BY +b,+c,+d,+e,+f;}]
+  do_execsql_test $tn.35 {
+    SELECT a FROM t2 ORDER BY b,c,+d,+e,+f;
+  } [db eval {SELECT a FROM t2 ORDER BY +b,+c,+d,+e,+f;}]
+  do_execsql_test $tn.36 {
+    SELECT a FROM t2 ORDER BY b,+c,+d,+e,+f;
+  } [db eval {SELECT a FROM t2 ORDER BY +b,+c,+d,+e,+f;}]
+
+  do_execsql_test $tn.37 {
+    SELECT a FROM t2 ORDER BY b,c,d,e,f DESC;
+  } [db eval {SELECT a FROM t2 ORDER BY +b,+c,+d,+e,+f DESC;}]
+  do_execsql_test $tn.38 {
+    SELECT a FROM t2 ORDER BY b,c,d,e DESC,f;
+  } [db eval {SELECT a FROM t2 ORDER BY +b,+c,+d,+e DESC,+f;}]
+  do_execsql_test $tn.39 {
+    SELECT a FROM t2 ORDER BY b,c,d DESC,e,f;
+  } [db eval {SELECT a FROM t2 ORDER BY +b,+c,+d DESC,+e,+f;}]
+  do_execsql_test $tn.40 {
+    SELECT a FROM t2 ORDER BY b,c DESC,d,e,f;
+  } [db eval {SELECT a FROM t2 ORDER BY +b,+c DESC,+d,+e,+f;}]
+  do_execsql_test $tn.41 {
+    SELECT a FROM t2 ORDER BY b DESC,c,d,e,f;
+  } [db eval {SELECT a FROM t2 ORDER BY +b DESC,+c,+d,+e,+f;}]
+
+  do_execsql_test $tn.42 {
+    SELECT a FROM t2 ORDER BY b DESC,c DESC,d,e,f LIMIT 31;
+  } [db eval {SELECT a FROM t2 ORDER BY +b DESC,+c DESC,+d,+e,+f LIMIT 31}]
+  do_execsql_test $tn.43 {
+    SELECT a FROM t2 ORDER BY b,c,d,e,f DESC LIMIT 8 OFFSET 7;
+  } [db eval {SELECT a FROM t2 ORDER BY +b,+c,+d,+e,+f DESC LIMIT 8 OFFSET 7}]
+
+
+}
+
+
+
+finish_test
diff --git a/test/orderby7.test b/test/orderby7.test
new file mode 100644
index 0000000000000000000000000000000000000000..8c5fc9a85fec4be8ddc2842b473a4f57d94b5e8b
--- /dev/null
+++ b/test/orderby7.test
@@ -0,0 +1,106 @@
+# 2014-04-25
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing ORDER BY optimizations on joins
+# that involve virtual tables.
+#
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix orderby7
+
+ifcapable !fts3 {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE fts USING fts3(content TEXT);
+  INSERT INTO fts(rowid,content)
+     VALUES(1,'this is a test of the fts3 virtual'),
+           (2,'table used as part of a join together'),
+           (3,'with the DISTINCT keyword.  There was'),
+           (4,'a bug at one time (2013-06 through 2014-04)'),
+           (5,'that prevented this from working correctly.'),
+           (11,'a row that occurs twice'),
+           (12,'a row that occurs twice');
+ 
+  CREATE TABLE t1(x TEXT PRIMARY KEY, y);
+  INSERT OR IGNORE INTO t1 SELECT content, rowid+100 FROM fts;
+} {}
+do_execsql_test 1.1 {
+  SELECT DISTINCT fts.rowid, t1.y
+    FROM fts, t1
+   WHERE fts MATCH 'that twice'
+     AND content=x
+   ORDER BY y;
+} {11 111 12 111}
+do_execsql_test 1.2 {
+  SELECT DISTINCT fts.rowid, t1.x
+    FROM fts, t1
+   WHERE fts MATCH 'that twice'
+     AND content=x
+   ORDER BY 1;
+} {11 {a row that occurs twice} 12 {a row that occurs twice}}
+do_execsql_test 1.3 {
+  SELECT DISTINCT t1.x
+    FROM fts, t1
+   WHERE fts MATCH 'that twice'
+     AND content=x
+   ORDER BY 1;
+} {{a row that occurs twice}}
+do_execsql_test 1.4 {
+  SELECT t1.x
+    FROM fts, t1
+   WHERE fts MATCH 'that twice'
+     AND content=x
+   ORDER BY 1;
+} {{a row that occurs twice} {a row that occurs twice}}
+do_execsql_test 1.5 {
+  SELECT DISTINCT t1.x
+    FROM fts, t1
+   WHERE fts MATCH 'that twice'
+     AND content=x;
+} {{a row that occurs twice}}
+do_execsql_test 1.6 {
+  SELECT t1.x
+    FROM fts, t1
+   WHERE fts MATCH 'that twice'
+     AND content=x;
+} {{a row that occurs twice} {a row that occurs twice}}
+
+do_execsql_test 2.1 {
+  SELECT DISTINCT t1.x
+    FROM fts, t1
+   WHERE fts.rowid=11
+     AND content=x
+   ORDER BY fts.rowid;
+} {{a row that occurs twice}}
+do_execsql_test 2.2 {
+  SELECT DISTINCT t1.*
+    FROM fts, t1
+   WHERE fts.rowid=11
+     AND content=x
+   ORDER BY fts.rowid;
+} {{a row that occurs twice} 111}
+do_execsql_test 2.3 {
+  SELECT DISTINCT t1.*
+    FROM fts, t1
+   WHERE fts.rowid=11
+     AND content=x
+   ORDER BY t1.y
+} {{a row that occurs twice} 111}
+
+
+
+
+finish_test
diff --git a/test/orderby8.test b/test/orderby8.test
new file mode 100644
index 0000000000000000000000000000000000000000..53da971b126ce044db277592c4dd0e6dad13898c
--- /dev/null
+++ b/test/orderby8.test
@@ -0,0 +1,41 @@
+# 2015-01-19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing ORDER BY and LIMIT on tables with
+# many columns.
+#
+# These tests verify that ticket [f97c4637102a3ae72b7911167e1d4da12ce60722]
+# from 2015-01-19 has been fixed.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix orderby8
+
+do_test 1.0 {
+  db eval {
+    CREATE TABLE t1(x);
+    INSERT INTO t1(x) VALUES(1),(5),(9),(7),(3),(2),(4),(6),(8);
+  }
+  set ::result_set "x"
+} {x}
+for {set i 1} {$i<200} {incr i} {
+  append ::result_set ", x+$i"
+  do_test 1.$i {
+    set res {}
+    db eval "SELECT $::result_set FROM t1 ORDER BY x LIMIT -1" {
+      lappend res $x
+    }
+    set res
+  } {1 2 3 4 5 6 7 8 9}
+}
+
+finish_test
diff --git a/test/orderby9.test b/test/orderby9.test
new file mode 100644
index 0000000000000000000000000000000000000000..581951c79563e2a7ce924d711c1a29a18ed6ce36
--- /dev/null
+++ b/test/orderby9.test
@@ -0,0 +1,62 @@
+# 2015-08-26
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+# 
+# This file seeks to verify that expressions (and especially functions)
+# that are in both the ORDER BY clause and the result set are only
+# evaluated once.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix orderby9
+
+
+do_execsql_test setup {
+  -- create a table with many entries
+  CREATE TABLE t1(x);
+  WITH RECURSIVE
+     c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<100)
+  INSERT INTO t1 SELECT x FROM c;
+}
+
+# Some versions of TCL are unable to [lsort -int] for
+# 64-bit integers.  So we write our own comparison
+# routine.
+proc bigintcompare {a b} {
+  set x [expr {$a-$b}]
+  if {$x<0} {return -1}
+  if {$x>0} {return +1}
+  return 0
+}
+do_test 1.0 {
+  set l1 {}
+  # If random() is only evaluated once and then reused for each row, then
+  # the output should appear in sorted order.  If random() is evaluated 
+  # separately for the result set and the ORDER BY clause, then the output
+  # order will be random.
+  db eval {SELECT random() AS y FROM t1 ORDER BY 1;} {lappend l1 $y}
+  expr {$l1==[lsort -command bigintcompare $l1]}
+} {1}
+
+do_test 1.1 {
+  set l1 {}
+  db eval {SELECT random() AS y FROM t1 ORDER BY random();} {lappend l1 $y}
+  expr {$l1==[lsort -command bigintcompare $l1]}
+} {1}
+
+do_test 1.2 {
+  set l1 {}
+  db eval {SELECT random() AS y FROM t1 ORDER BY +random();} {lappend l1 $y}
+  expr {$l1==[lsort -command bigintcompare $l1]}
+} {0}
+
+finish_test
diff --git a/test/orderbyA.test b/test/orderbyA.test
new file mode 100644
index 0000000000000000000000000000000000000000..4400f4e05ff67b310a08fb23fe26f8d9255290e1
--- /dev/null
+++ b/test/orderbyA.test
@@ -0,0 +1,147 @@
+# 2019-09-21
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# Specifically, it tests cases where the expressions in a GROUP BY 
+# clause are the same as those in the ORDER BY clause.
+# 
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix orderbyA
+
+proc do_sortcount_test {tn sql cnt res} {
+  set eqp [execsql "EXPLAIN QUERY PLAN $sql"]
+  set rcnt [regexp -all {USE TEMP} $eqp]
+  uplevel [list do_test         $tn.1 [list set {} $rcnt] $cnt]
+  uplevel [list do_execsql_test $tn.2 $sql $res]
+}
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b, c);
+  INSERT INTO t1 VALUES('one',   1, 11);
+  INSERT INTO t1 VALUES('three', 7, 11);
+  INSERT INTO t1 VALUES('one',   2, 11);
+  INSERT INTO t1 VALUES('one',   3, 11);
+  INSERT INTO t1 VALUES('two',   4, 11);
+  INSERT INTO t1 VALUES('two',   6, 11);
+  INSERT INTO t1 VALUES('three', 8, 11);
+  INSERT INTO t1 VALUES('two',   5, 11);
+  INSERT INTO t1 VALUES('three', 9, 11);
+}
+
+foreach {tn idx} {
+  1 {}
+  2 {CREATE INDEX i1 ON t1(a)}
+  3 {CREATE INDEX i1 ON t1(a DESC)}
+} {
+  execsql { DROP INDEX IF EXISTS i1 }
+  execsql $idx
+
+  # $match is the number of temp-table sorts we expect if the GROUP BY
+  # can use the same sort order as the ORDER BY. $nomatch is the number
+  # of expected sorts if the GROUP BY and ORDER BY are not compatible.
+  set match   1
+  set nomatch 2
+  if {$tn>=2} {
+    set match   0
+    set nomatch 1
+  }
+
+  do_sortcount_test 1.$tn.1.1 {
+    SELECT a, sum(b) FROM t1 GROUP BY a ORDER BY a
+  } $match {one 6 three 24 two 15}
+  do_sortcount_test 1.$tn.1.2 {
+    SELECT a, sum(b) FROM t1 GROUP BY a ORDER BY a DESC
+  } $match {two 15 three 24 one 6}
+  
+  do_sortcount_test 1.$tn.2.1 {
+    SELECT a, sum(b) FROM t1 GROUP BY a ORDER BY a||''
+  } $nomatch {one 6 three 24 two 15}
+  do_sortcount_test 1.$tn.2.2 {
+    SELECT a, sum(b) FROM t1 GROUP BY a ORDER BY a||'' DESC
+  } $nomatch {two 15 three 24 one 6}
+  
+  do_sortcount_test 1.$tn.3.1 {
+    SELECT a, sum(b) FROM t1 GROUP BY a ORDER BY a NULLS LAST
+  } $nomatch {one 6 three 24 two 15}
+  do_sortcount_test 1.$tn.3.2 {
+    SELECT a, sum(b) FROM t1 GROUP BY a ORDER BY a DESC NULLS FIRST
+  } $nomatch {two 15 three 24 one 6}
+}
+
+#-------------------------------------------------------------------------
+do_execsql_test 2.0 {
+  CREATE TABLE t2(a, b, c);
+  INSERT INTO t2 VALUES(1, 'one', 1);
+  INSERT INTO t2 VALUES(1, 'two', 2);
+  INSERT INTO t2 VALUES(1, 'one', 3);
+  INSERT INTO t2 VALUES(1, 'two', 4);
+  INSERT INTO t2 VALUES(1, 'one', 5);
+  INSERT INTO t2 VALUES(1, 'two', 6);
+
+  INSERT INTO t2 VALUES(2, 'one', 7);
+  INSERT INTO t2 VALUES(2, 'two', 8);
+  INSERT INTO t2 VALUES(2, 'one', 9);
+  INSERT INTO t2 VALUES(2, 'two', 10);
+  INSERT INTO t2 VALUES(2, 'one', 11);
+  INSERT INTO t2 VALUES(2, 'two', 12);
+
+  INSERT INTO t2 VALUES(NULL, 'one', 13);
+  INSERT INTO t2 VALUES(NULL, 'two', 14);
+  INSERT INTO t2 VALUES(NULL, 'one', 15);
+  INSERT INTO t2 VALUES(NULL, 'two', 16);
+  INSERT INTO t2 VALUES(NULL, 'one', 17);
+  INSERT INTO t2 VALUES(NULL, 'two', 18);
+}
+
+foreach {tn idx} {
+  1 {}
+
+  2 { CREATE INDEX i2 ON t2(a, b)           }
+  3 { CREATE INDEX i2 ON t2(a DESC, b DESC) }
+
+  4 { CREATE INDEX i2 ON t2(a, b DESC)      }
+  5 { CREATE INDEX i2 ON t2(a DESC, b)      }
+} {
+  execsql { DROP INDEX IF EXISTS i2 }
+  execsql $idx
+
+
+  set nSort [expr ($tn==2 || $tn==3) ? 0 : 1]
+  do_sortcount_test 2.$tn.1.1 {
+    SELECT a, b, sum(c) FROM t2 GROUP BY a, b ORDER BY a, b;
+  } $nSort {{} one 45  {} two 48  1 one 9  1 two 12  2 one 27  2 two 30}
+  do_sortcount_test 2.$tn.1.2 {
+    SELECT a, b, sum(c) FROM t2 GROUP BY a, b ORDER BY a DESC, b DESC;
+  } $nSort {2 two 30  2 one 27  1 two 12  1 one 9  {} two 48  {} one 45}
+
+  set nSort [expr ($tn==4 || $tn==5) ? 0 : 1]
+  do_sortcount_test 2.$tn.2.1 {
+    SELECT a, b, sum(c) FROM t2 GROUP BY a, b ORDER BY a, b DESC;
+  } $nSort { {} two 48  {} one 45  1 two 12  1 one 9  2 two 30 2 one 27 }
+  do_sortcount_test 2.$tn.2.2 {
+    SELECT a, b, sum(c) FROM t2 GROUP BY a, b ORDER BY a DESC, b;
+  } $nSort { 2 one 27  2 two 30  1 one 9  1 two 12  {} one 45 {} two 48 }
+
+  # ORDER BY can never piggyback on the GROUP BY sort if it uses 
+  # non-standard NULLS behaviour.
+  set nSort [expr $tn==1 ? 2 : 1]
+  do_sortcount_test 2.$tn.3.1 {
+    SELECT a, b, sum(c) FROM t2 GROUP BY a, b ORDER BY a, b DESC NULLS FIRST;
+  } $nSort { {} two 48  {} one 45  1 two 12  1 one 9  2 two 30 2 one 27 }
+  do_sortcount_test 2.$tn.3.2 {
+    SELECT a, b, sum(c) FROM t2 GROUP BY a, b ORDER BY a DESC, b NULLS LAST;
+  } $nSort { 2 one 27  2 two 30  1 one 9  1 two 12  {} one 45 {} two 48 }
+}
+
+
+finish_test
diff --git a/test/orderbyB.test b/test/orderbyB.test
new file mode 100644
index 0000000000000000000000000000000000000000..42d2de79829ace029e05f1398a2b4432e61fc688
--- /dev/null
+++ b/test/orderbyB.test
@@ -0,0 +1,94 @@
+# 2024-08-15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# Specifically, it tests cases with order-by-subquery optimization in which
+# an ORDER BY in a subquery is used to help resolve an ORDER BY in the
+# outer query without having to do an extra sort.
+# 
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix orderbyb
+
+db null NULL
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a TEXT, b TEXT, c INT);
+  INSERT INTO t1 VALUES(NULL,NULL,NULL);
+  WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<7)
+    INSERT INTO t1(a,b,c) SELECT char(p,p), char(q,q), n FROM
+            (SELECT ((n-1)%4)+0x61 AS p, abs(n*2-9+(n>=5))+0x60 AS q, n FROM c);
+  UPDATE t1 SET b=upper(b) WHERE c=1;
+  CREATE TABLE t2(k TEXT PRIMARY KEY, v INT) WITHOUT ROWID;
+  WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<7)
+    INSERT INTO t2(k,v) SELECT char(0x60+n,0x60+n), n FROM c;
+  WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<7)
+    INSERT INTO t2(k,v) SELECT char(0x40+n,0x40+n), n FROM c;
+  SELECT a,b,c,tx.v AS 'v-a', ty.v AS 'v-b'
+    FROM t1 LEFT JOIN t2 AS tx ON tx.k=a
+            LEFT JOIN t2 AS ty ON ty.k=b
+   ORDER BY c;
+} {
+  NULL  NULL  NULL  NULL  NULL
+  aa    GG    1     1     7
+  bb    ee    2     2     5
+  cc    cc    3     3     3
+  dd    aa    4     4     1
+  aa    bb    5     1     2
+  bb    dd    6     2     4
+  cc    ff    7     3     6
+}
+
+do_eqp_execsql_test 1.1 {
+  WITH t3(x,y) AS (SELECT a, b FROM t1 ORDER BY a, b LIMIT 8)
+    SELECT x, y, v FROM t3 LEFT JOIN t2 ON k=t3.y ORDER BY x, y COLLATE nocase;
+} {
+  QUERY PLAN
+  |--CO-ROUTINE t3
+  |  |--SCAN t1
+  |  `--USE TEMP B-TREE FOR ORDER BY
+  |--SCAN t3
+  |--SEARCH t2 USING PRIMARY KEY (k=?) LEFT-JOIN
+  `--USE TEMP B-TREE FOR LAST TERM OF ORDER BY
+} {
+  NULL  NULL  NULL
+  aa    bb    2
+  aa    GG    7
+  bb    dd    4
+  bb    ee    5
+  cc    cc    3
+  cc    ff    6
+  dd    aa    1
+}
+
+do_eqp_execsql_test 1.2 {
+  WITH t3(x,y) AS MATERIALIZED (SELECT a, b COLLATE nocase FROM t1 ORDER BY 1,2)
+    SELECT x, y, v FROM t3 LEFT JOIN t2 ON k=t3.y ORDER BY x,y;
+} {
+  QUERY PLAN
+  |--MATERIALIZE t3
+  |  |--SCAN t1
+  |  `--USE TEMP B-TREE FOR ORDER BY
+  |--SCAN t3
+  `--SEARCH t2 USING PRIMARY KEY (k=?) LEFT-JOIN
+} {
+  NULL  NULL  NULL
+  aa    bb    2
+  aa    GG    7
+  bb    dd    4
+  bb    ee    5
+  cc    cc    3
+  cc    ff    6
+  dd    aa    1
+}
+
+
+finish_test
diff --git a/test/oserror.test b/test/oserror.test
new file mode 100644
index 0000000000000000000000000000000000000000..a51301cc52b67b5417db04bbc00a9bfee40d0fd9
--- /dev/null
+++ b/test/oserror.test
@@ -0,0 +1,142 @@
+# 2011 February 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing that error messages are logged via the
+# sqlite3_log() mechanism when certain errors are encountered in the
+# default unix or windows VFS modules.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+if {$::tcl_platform(platform)!="unix"} { finish_test ; return }
+set ::testprefix oserror
+
+db close
+sqlite3_shutdown
+test_sqlite3_log xLog
+proc xLog {error_code msg} {
+  if {[string match os_* $msg]} {
+    lappend ::log $msg 
+  }
+}
+
+proc do_re_test {tn script expression} {
+  uplevel do_test $tn [list [subst -nocommands {
+    set res [eval { $script }]
+    if {[regexp {$expression} [set res]]} {
+      set {} {$expression}
+    } else {
+      set res
+    }
+  }]] [list $expression]
+  
+}
+
+#--------------------------------------------------------------------------
+# Tests oserror-1.* test failures in the open() system call.
+#
+
+# Test a failure in open() due to too many files. 
+#
+# The xOpen() method of the unix VFS calls getcwd() as well as open().
+# Although this does not appear to be documented in the man page, on OSX
+# a call to getcwd() may fail if there are no free file descriptors. So
+# an error may be reported for either open() or getcwd() here.
+#
+if {![clang_sanitize_address]} {
+  unset -nocomplain rc
+  unset -nocomplain nOpen
+  set nOpen 20000
+  do_test 1.1.1 {
+    set ::log [list]
+    set ::rc [catch {
+      for {set i 0} {$i < $::nOpen} {incr i} { sqlite3 dbh_$i test.db -readonly 1 }
+    } msg]
+    if {$::rc==0} {
+      # Some system (ex: Debian) are able to create 20000+ file descriptiors
+      # such systems will not fail here
+      set x ok
+    } elseif {$::rc==1 && $msg=="unable to open database file"} {
+      set x ok
+    } else {
+      set x [list $::rc $msg]
+    }
+  } {ok}
+  do_test 1.1.2 {
+    catch { for {set i 0} {$i < $::nOpen} {incr i} { dbh_$i close } }
+  } $::rc
+  if {$rc} {
+    do_re_test 1.1.3 { 
+      lindex $::log 0 
+    } {^os_unix.c:\d+: \(\d+\) (open|getcwd)\(.*test.db\) - }
+  }
+}
+
+
+# Test a failure in open() due to the path being a directory.
+#
+do_test 1.2.1 {
+  file mkdir dir.db
+  set ::log [list]
+  list [catch { sqlite3 dbh dir.db } msg] $msg
+} {1 {unable to open database file}}
+
+do_re_test 1.2.2 { lindex $::log 0 } {^os_unix.c:\d+: \(\d+\) open\(.*dir.db\) - }
+
+# Test a failure in open() due to the path not existing.
+#
+do_test 1.3.1 {
+  set ::log [list]
+  list [catch { sqlite3 dbh /x/y/z/test.db } msg] $msg
+} {1 {unable to open database file}}
+
+do_re_test 1.3.2 { lindex $::log 0 } {^os_unix.c:\d+: \(\d+\) open\(.*test.db\) - }
+
+# Test a failure in open() due to the path not existing.
+#
+do_test 1.4.1 {
+  set ::log [list]
+  list [catch { sqlite3 dbh /root/test.db } msg] $msg
+} {1 {unable to open database file}}
+
+do_re_test 1.4.2 { 
+  lindex $::log 0
+} {^os_unix.c:\d*: \(\d+\) (open|readlink|lstat)\(.*test.db\) - }
+
+#--------------------------------------------------------------------------
+# Tests oserror-1.* test failures in the unlink() system call.
+#
+ifcapable wal {
+  do_test 2.1.1 {
+    set ::log [list]
+    file mkdir test.db-wal
+    forcedelete test.db
+    list [catch {
+      sqlite3 dbh test.db
+      execsql { SELECT * FROM sqlite_master } dbh
+    } msg] $msg
+  } {1 {disk I/O error}}
+  
+  do_re_test 2.1.2 { 
+    lindex $::log 0 
+  } {^os_unix.c:\d+: \(\d+\) unlink\(.*test.db-wal\) - }
+  do_test 2.1.3 { 
+    catch { dbh close }
+    forcedelete test.db-wal
+  } {}
+}
+  
+
+test_syscall reset
+sqlite3_shutdown
+test_sqlite3_log 
+sqlite3_initialize
+finish_test
diff --git a/test/ossfuzz.c b/test/ossfuzz.c
new file mode 100644
index 0000000000000000000000000000000000000000..b0156a640e6e23145238039d348b92561062966c
--- /dev/null
+++ b/test/ossfuzz.c
@@ -0,0 +1,201 @@
+/*
+** This module interfaces SQLite to the Google OSS-Fuzz, fuzzer as a service.
+** (https://github.com/google/oss-fuzz)
+*/
+#include <stddef.h>
+#if !defined(_MSC_VER)
+# include <stdint.h>
+#endif
+#include <stdio.h>
+#include <string.h>
+#include "sqlite3.h"
+
+#if defined(_MSC_VER)
+typedef unsigned char uint8_t;
+#endif
+
+/* Global debugging settings.  OSS-Fuzz will have all debugging turned
+** off.  But if LLVMFuzzerTestOneInput() is called interactively from
+** the ossshell utility program, then these flags might be set.
+*/
+static unsigned mDebug = 0;
+#define FUZZ_SQL_TRACE       0x0001   /* Set an sqlite3_trace() callback */
+#define FUZZ_SHOW_MAX_DELAY  0x0002   /* Show maximum progress callback delay */
+#define FUZZ_SHOW_ERRORS     0x0004   /* Print error messages from SQLite */
+
+/* The ossshell utility program invokes this interface to see the
+** debugging flags.  Unused by OSS-Fuzz.
+*/
+void ossfuzz_set_debug_flags(unsigned x){
+  mDebug = x;
+}
+
+/* Return the current real-world time in milliseconds since the
+** Julian epoch (-4714-11-24).
+*/
+static sqlite3_int64 timeOfDay(void){
+  static sqlite3_vfs *clockVfs = 0;
+  sqlite3_int64 t;
+  if( clockVfs==0 ){
+    clockVfs = sqlite3_vfs_find(0);
+    if( clockVfs==0 ) return 0;
+  }
+  if( clockVfs->iVersion>=2 && clockVfs->xCurrentTimeInt64!=0 ){
+    clockVfs->xCurrentTimeInt64(clockVfs, &t);
+  }else{
+    double r;
+    clockVfs->xCurrentTime(clockVfs, &r);
+    t = (sqlite3_int64)(r*86400000.0);
+  }
+  return t;
+}
+
+/* An instance of the following object is passed by pointer as the
+** client data to various callbacks.
+*/
+typedef struct FuzzCtx {
+  sqlite3 *db;               /* The database connection */
+  sqlite3_int64 iCutoffTime; /* Stop processing at this time. */
+  sqlite3_int64 iLastCb;     /* Time recorded for previous progress callback */
+  sqlite3_int64 mxInterval;  /* Longest interval between two progress calls */
+  unsigned nCb;              /* Number of progress callbacks */
+  unsigned execCnt;          /* Number of calls to the sqlite3_exec callback */
+} FuzzCtx;
+
+/*
+** Progress handler callback.
+**
+** The argument is the cutoff-time after which all processing should
+** stop.  So return non-zero if the cut-off time is exceeded.
+*/
+static int progress_handler(void *pClientData) {
+  FuzzCtx *p = (FuzzCtx*)pClientData;
+  sqlite3_int64 iNow = timeOfDay();
+  int rc = iNow>=p->iCutoffTime;
+  sqlite3_int64 iDiff = iNow - p->iLastCb;
+  if( iDiff > p->mxInterval ) p->mxInterval = iDiff;
+  p->nCb++;
+  return rc;
+}
+
+/*
+** Disallow debugging pragmas such as "PRAGMA vdbe_debug" and
+** "PRAGMA parser_trace" since they can dramatically increase the
+** amount of output without actually testing anything useful.
+*/
+static int block_debug_pragmas(
+  void *Notused,
+  int eCode,
+  const char *zArg1,
+  const char *zArg2,
+  const char *zArg3,
+  const char *zArg4
+){
+  if( eCode==SQLITE_PRAGMA
+   && (sqlite3_strnicmp("vdbe_", zArg1, 5)==0
+        || sqlite3_stricmp("parser_trace", zArg1)==0)
+  ){
+    return SQLITE_DENY;
+  }
+  return SQLITE_OK;
+}
+
+/*
+** Callback for sqlite3_exec().
+*/
+static int exec_handler(void *pClientData, int argc, char **argv, char **namev){
+  FuzzCtx *p = (FuzzCtx*)pClientData;
+  int i;
+  if( argv ){
+    for(i=0; i<argc; i++) sqlite3_free(sqlite3_mprintf("%s", argv[i]));
+  }
+  return (p->execCnt--)<=0 || progress_handler(pClientData);
+}
+
+/*
+** Main entry point.  The fuzzer invokes this function with each
+** fuzzed input.
+*/
+int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
+  char *zErrMsg = 0;       /* Error message returned by sqlite_exec() */
+  uint8_t uSelector;       /* First byte of input data[] */
+  int rc;                  /* Return code from various interfaces */
+  char *zSql;              /* Zero-terminated copy of data[] */
+  FuzzCtx cx;              /* Fuzzing context */
+
+  memset(&cx, 0, sizeof(cx));
+  if( size<3 ) return 0;   /* Early out if unsufficient data */
+
+  /* Extract the selector byte from the beginning of the input.  But only
+  ** do this if the second byte is a \n.  If the second byte is not \n,
+  ** then use a default selector */
+  if( data[1]=='\n' ){
+    uSelector = data[0];  data += 2; size -= 2;
+  }else{
+    uSelector = 0xfd;
+  }
+
+  /* Open the database connection.  Only use an in-memory database. */
+  if( sqlite3_initialize() ) return 0;
+  rc = sqlite3_open_v2("fuzz.db", &cx.db,
+           SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE | SQLITE_OPEN_MEMORY, 0);
+  if( rc ) return 0;
+
+  /* Invoke the progress handler frequently to check to see if we
+  ** are taking too long.  The progress handler will return true
+  ** (which will block further processing) if more than 10 seconds have
+  ** elapsed since the start of the test.
+  */
+  cx.iLastCb = timeOfDay();
+  cx.iCutoffTime = cx.iLastCb + 10000;  /* Now + 10 seconds */
+#ifndef SQLITE_OMIT_PROGRESS_CALLBACK
+  sqlite3_progress_handler(cx.db, 10, progress_handler, (void*)&cx);
+#endif
+
+  /* Set a limit on the maximum size of a prepared statement */
+  sqlite3_limit(cx.db, SQLITE_LIMIT_VDBE_OP, 25000);
+
+  /* Limit total memory available to SQLite to 20MB */
+  sqlite3_hard_heap_limit64(20000000);
+
+  /* Set a limit on the maximum length of a string or BLOB.  Without this
+  ** limit, fuzzers will invoke randomblob(N) for a large N, and the process
+  ** will timeout trying to generate the huge blob */
+  sqlite3_limit(cx.db, SQLITE_LIMIT_LENGTH, 50000);
+
+  /* Bit 1 of the selector enables foreign key constraints */
+  sqlite3_db_config(cx.db, SQLITE_DBCONFIG_ENABLE_FKEY, uSelector&1, &rc);
+  uSelector >>= 1;
+
+  /* Do not allow debugging pragma statements that might cause excess output */
+  sqlite3_set_authorizer(cx.db, block_debug_pragmas, 0);
+
+  /* Remaining bits of the selector determine a limit on the number of
+  ** output rows */
+  cx.execCnt = uSelector + 1;
+
+  /* Run the SQL.  The sqlite_exec() interface expects a zero-terminated
+  ** string, so make a copy. */
+  zSql = sqlite3_mprintf("%.*s", (int)size, data);
+#ifndef SQLITE_OMIT_COMPLETE
+  sqlite3_complete(zSql);
+#endif
+  sqlite3_exec(cx.db, zSql, exec_handler, (void*)&cx, &zErrMsg);
+
+  /* Show any errors */
+  if( (mDebug & FUZZ_SHOW_ERRORS)!=0 && zErrMsg ){
+    printf("Error: %s\n", zErrMsg);
+  }
+
+  /* Cleanup and return */
+  sqlite3_free(zErrMsg);
+  sqlite3_free(zSql);
+  sqlite3_exec(cx.db, "PRAGMA temp_store_directory=''", 0, 0, 0);
+  sqlite3_close(cx.db);
+
+  if( mDebug & FUZZ_SHOW_MAX_DELAY ){
+    printf("Progress callback count....... %d\n", cx.nCb);
+    printf("Max time between callbacks.... %d ms\n", (int)cx.mxInterval);
+  }
+  return 0;
+}
diff --git a/test/ossshell.c b/test/ossshell.c
new file mode 100644
index 0000000000000000000000000000000000000000..54849f97f6d8fdff438be2e1250bef38fed3138d
--- /dev/null
+++ b/test/ossshell.c
@@ -0,0 +1,100 @@
+/*
+** This is a test interface for the ossfuzz.c module.  The ossfuzz.c module
+** is an adaptor for OSS-FUZZ.  (https://github.com/google/oss-fuzz)
+**
+** This program links against ossfuzz.c.  It reads files named on the
+** command line and passes them one by one into ossfuzz.c.
+*/
+#include <stddef.h>
+#if !defined(_MSC_VER)
+# include <stdint.h>
+#endif
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "sqlite3.h"
+
+#if defined(_MSC_VER)
+typedef unsigned char uint8_t;
+#endif
+
+/*
+** The entry point in ossfuzz.c that this routine will be calling
+*/
+int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size);
+
+/* Must match equivalent #defines in ossfuzz.c */
+#define FUZZ_SQL_TRACE       0x0001   /* Set an sqlite3_trace() callback */
+#define FUZZ_SHOW_MAX_DELAY  0x0002   /* Show maximum progress callback delay */
+#define FUZZ_SHOW_ERRORS     0x0004   /* Show SQL errors */
+extern void ossfuzz_set_debug_flags(unsigned);
+
+
+
+/*
+** Read files named on the command-line and invoke the fuzzer for
+** each one.
+*/
+int main(int argc, char **argv){
+  FILE *in;
+  int i;
+  int nErr = 0;
+  uint8_t *zBuf = 0;
+  size_t sz;
+  unsigned mDebug = 0;
+
+  for(i=1; i<argc; i++){
+    const char *zFilename = argv[i];
+    if( zFilename[0]=='-' ){
+      if( zFilename[1]=='-' ) zFilename++;
+      if( strcmp(zFilename, "-show-errors")==0 ){
+        mDebug |= FUZZ_SHOW_ERRORS;
+        ossfuzz_set_debug_flags(mDebug);
+      }else
+      if( strcmp(zFilename, "-show-max-delay")==0 ){
+        mDebug |= FUZZ_SHOW_MAX_DELAY;
+        ossfuzz_set_debug_flags(mDebug);
+      }else
+      if( strcmp(zFilename, "-sql-trace")==0 ){
+        mDebug |= FUZZ_SQL_TRACE;
+        ossfuzz_set_debug_flags(mDebug);
+      }else
+      {
+        printf("unknown option \"%s\"\n", argv[i]);
+        printf("should be one of: --show-errors --show-max-delay"
+               " --sql-trace\n");
+        exit(1);
+      }
+      continue;
+    }
+    in = fopen(zFilename, "rb");
+    if( in==0 ){
+      fprintf(stderr, "cannot open \"%s\"\n", zFilename);
+      nErr++;
+      continue;
+    }
+    fseek(in, 0, SEEK_END);
+    sz = ftell(in);
+    rewind(in);
+    zBuf = realloc(zBuf, sz);
+    if( zBuf==0 ){
+      fprintf(stderr, "cannot malloc() for %d bytes\n", (int)sz);
+      exit(1);
+    }
+    if( fread(zBuf, sz, 1, in)!=1 ){
+      fprintf(stderr, "cannot read %d bytes from \"%s\"\n",
+                       (int)sz, zFilename);
+      nErr++;
+    }else{
+      printf("%s... ", zFilename);
+      if( mDebug ) printf("\n");
+      fflush(stdout);
+      (void)LLVMFuzzerTestOneInput(zBuf, sz);
+      if( mDebug ) printf("%s: ", zFilename);
+      printf("ok\n");
+    }
+    fclose(in);
+  }
+  free(zBuf);
+  return nErr;
+}
diff --git a/test/ovfl.test b/test/ovfl.test
new file mode 100644
index 0000000000000000000000000000000000000000..4be75685469fc149b4d194643bdc5633e09f1cd0
--- /dev/null
+++ b/test/ovfl.test
@@ -0,0 +1,47 @@
+# 2014 October 01
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the SQLITE_DIRECT_OVERFLOW_READ logic.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix ovfl
+
+# Populate table t2:
+#
+#   CREATE TABLE t1(c1 TEXT, c2 TEXT);
+#
+# with 2000 rows. In each row, c2 spans multiple overflow pages. The text
+# value of c1 ranges in size from 1 to 2000 bytes. The idea is to create
+# at least one row where the first byte of c2 is also the first byte of
+# an overflow page. This was at one point exposing an obscure bug in the
+# SQLITE_DIRECT_OVERFLOW_READ logic.
+#
+do_test 1.1 {
+  set c2 [string repeat abcdefghij 200]
+  execsql {
+    PRAGMA cache_size = 10;
+    CREATE TABLE t1(c1 TEXT, c2 TEXT);
+    BEGIN;
+  }
+  for {set i 1} {$i <= 2000} {incr i} {
+    set c1 [string repeat . $i]
+    execsql { INSERT INTO t1 VALUES($c1, $c2) }
+  }
+  execsql COMMIT
+} {}
+
+do_execsql_test 1.2 {
+  SELECT sum(length(c2)) FROM t1;
+} [expr 2000 * 2000]
+
+finish_test
diff --git a/test/pager1.test b/test/pager1.test
new file mode 100644
index 0000000000000000000000000000000000000000..79598e2a70d0b378c3a518cdf03adc466f6f9852
--- /dev/null
+++ b/test/pager1.test
@@ -0,0 +1,2956 @@
+# 2010 June 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+source $testdir/malloc_common.tcl
+source $testdir/wal_common.tcl
+set testprefix pager1
+
+if {[atomic_batch_write test.db]} {
+  finish_test
+  return
+}
+ifcapable !incrblob {
+  finish_test
+  return
+}
+
+# Do not use a codec for tests in this file, as the database file is
+# manipulated directly using tcl scripts (using the [hexio_write] command).
+#
+do_not_use_codec
+
+#
+# pager1-1.*: Test inter-process locking (clients in multiple processes).
+#
+# pager1-2.*: Test intra-process locking (multiple clients in this process).
+#
+# pager1-3.*: Savepoint related tests.
+#
+# pager1-4.*: Hot-journal related tests.
+#
+# pager1-5.*: Cases related to multi-file commits.
+#
+# pager1-6.*: Cases related to "PRAGMA max_page_count"
+#
+# pager1-7.*: Cases specific to "PRAGMA journal_mode=TRUNCATE"
+#
+# pager1-8.*: Cases using temporary and in-memory databases.
+#
+# pager1-9.*: Tests related to the backup API.
+#
+# pager1-10.*: Test that the assumed file-system sector-size is limited to
+#              64KB.
+#
+# pager1-12.*: Tests involving "PRAGMA page_size"
+#
+# pager1-13.*: Cases specific to "PRAGMA journal_mode=PERSIST"
+#
+# pager1-14.*: Cases specific to "PRAGMA journal_mode=OFF"
+#
+# pager1-15.*: Varying sqlite3_vfs.szOsFile
+#
+# pager1-16.*: Varying sqlite3_vfs.mxPathname
+#
+# pager1-17.*: Tests related to "PRAGMA omit_readlock"
+#              (The omit_readlock pragma has been removed and so have
+#              these tests.)
+#
+# pager1-18.*: Test that the pager layer responds correctly if the b-tree
+#              requests an invalid page number (due to db corruption).
+#
+
+proc recursive_select {id table {script {}}} {
+  set cnt 0
+  db eval "SELECT rowid, * FROM $table WHERE rowid = ($id-1)" {
+    recursive_select $rowid $table $script
+    incr cnt
+  }
+  if {$cnt==0} { eval $script }
+}
+
+set a_string_counter 1
+proc a_string {n} {
+  global a_string_counter
+  incr a_string_counter
+  string range [string repeat "${a_string_counter}." $n] 1 $n
+}
+db func a_string a_string
+
+do_multiclient_test tn {
+
+  # Create and populate a database table using connection [db]. Check 
+  # that connections [db2] and [db3] can see the schema and content.
+  #
+  do_test pager1-$tn.1 {
+    sql1 {
+      CREATE TABLE t1(a PRIMARY KEY, b);
+      CREATE INDEX i1 ON t1(b);
+      INSERT INTO t1 VALUES(1, 'one'); INSERT INTO t1 VALUES(2, 'two');
+    }
+  } {}
+  do_test pager1-$tn.2 { sql2 { SELECT * FROM t1 } } {1 one 2 two}
+  do_test pager1-$tn.3 { sql3 { SELECT * FROM t1 } } {1 one 2 two}
+
+  # Open a transaction and add a row using [db]. This puts [db] in
+  # RESERVED state. Check that connections [db2] and [db3] can still
+  # read the database content as it was before the transaction was
+  # opened. [db] should see the inserted row.
+  #
+  do_test pager1-$tn.4 {
+    sql1 {
+      BEGIN;
+        INSERT INTO t1 VALUES(3, 'three');
+    }
+  } {}
+  do_test pager1-$tn.5 { sql2 { SELECT * FROM t1 } } {1 one 2 two}
+  do_test pager1-$tn.7 { sql1 { SELECT * FROM t1 } } {1 one 2 two 3 three}
+
+  # [db] still has an open write transaction. Check that this prevents
+  # other connections (specifically [db2]) from writing to the database.
+  #
+  # Even if [db2] opens a transaction first, it may not write to the
+  # database. After the attempt to write the db within a transaction, 
+  # [db2] is left with an open transaction, but not a read-lock on
+  # the main database. So it does not prevent [db] from committing.
+  #
+  do_test pager1-$tn.8 { 
+    csql2 { UPDATE t1 SET a = a + 10 }
+  } {1 {database is locked}}
+  do_test pager1-$tn.9 { 
+    csql2 { 
+      BEGIN;
+      UPDATE t1 SET a = a + 10;
+    }
+  } {1 {database is locked}}
+
+  # Have [db] commit its transactions. Check the other connections can
+  # now see the new database content.
+  #
+  do_test pager1-$tn.10 { sql1 { COMMIT } } {}
+  do_test pager1-$tn.11 { sql1 { SELECT * FROM t1 } } {1 one 2 two 3 three}
+  do_test pager1-$tn.12 { sql2 { SELECT * FROM t1 } } {1 one 2 two 3 three}
+  do_test pager1-$tn.13 { sql3 { SELECT * FROM t1 } } {1 one 2 two 3 three}
+
+  # Check that, as noted above, [db2] really did keep an open transaction
+  # after the attempt to write the database failed.
+  #
+  do_test pager1-$tn.14 { 
+    csql2 { BEGIN } 
+  } {1 {cannot start a transaction within a transaction}}
+  do_test pager1-$tn.15 { sql2 { ROLLBACK } } {}
+
+  # Have [db2] open a transaction and take a read-lock on the database.
+  # Check that this prevents [db] from writing to the database (outside
+  # of any transaction). After this fails, check that [db3] can read
+  # the db (showing that [db] did not take a PENDING lock etc.)
+  #
+  do_test pager1-$tn.15 { 
+    sql2 { BEGIN; SELECT * FROM t1; }
+  } {1 one 2 two 3 three}
+  do_test pager1-$tn.16 { 
+    csql1 { UPDATE t1 SET a = a + 10 }
+  } {1 {database is locked}}
+  do_test pager1-$tn.17 { sql3 { SELECT * FROM t1 } } {1 one 2 two 3 three}
+
+  # This time, have [db] open a transaction before writing the database.
+  # This works - [db] gets a RESERVED lock which does not conflict with
+  # the SHARED lock [db2] is holding.
+  #
+  do_test pager1-$tn.18 { 
+    sql1 { 
+      BEGIN;  
+      UPDATE t1 SET a = a + 10; 
+    }
+  } {}
+  do_test pager1-$tn-19 { 
+    sql1 { PRAGMA lock_status } 
+  } {main reserved temp closed}
+  do_test pager1-$tn-20 { 
+    sql2 { PRAGMA lock_status } 
+  } {main shared temp closed}
+
+  # Check that all connections can still read the database. Only [db] sees
+  # the updated content (as the transaction has not been committed yet).
+  #
+  do_test pager1-$tn.21 { sql1 { SELECT * FROM t1 } } {11 one 12 two 13 three}
+  do_test pager1-$tn.22 { sql2 { SELECT * FROM t1 } } {1 one 2 two 3 three}
+  do_test pager1-$tn.23 { sql3 { SELECT * FROM t1 } } {1 one 2 two 3 three}
+
+  # Because [db2] still has the SHARED lock, [db] is unable to commit the
+  # transaction. If it tries, an error is returned and the connection 
+  # upgrades to a PENDING lock.
+  #
+  # Once this happens, [db] can read the database and see the new content,
+  # [db2] (still holding SHARED) can still read the old content, but [db3]
+  # (not holding any lock) is prevented by [db]'s PENDING from reading
+  # the database.
+  #
+  do_test pager1-$tn.24 { csql1 { COMMIT } } {1 {database is locked}}
+  do_test pager1-$tn-25 { 
+    sql1 { PRAGMA lock_status } 
+  } {main pending temp closed}
+  do_test pager1-$tn.26 { sql1 { SELECT * FROM t1  } } {11 one 12 two 13 three}
+  do_test pager1-$tn.27 { sql2 { SELECT * FROM t1  } } {1 one 2 two 3 three}
+  do_test pager1-$tn.28 { csql3 { SELECT * FROM t1 } } {1 {database is locked}}
+
+  # Have [db2] commit its read transaction, releasing the SHARED lock it
+  # is holding. Now, neither [db2] nor [db3] may read the database (as [db]
+  # is still holding a PENDING).
+  #
+  do_test pager1-$tn.29 { sql2 { COMMIT } } {}
+  do_test pager1-$tn.30 { csql2 { SELECT * FROM t1 } } {1 {database is locked}}
+  do_test pager1-$tn.31 { csql3 { SELECT * FROM t1 } } {1 {database is locked}}
+
+  # [db] is now able to commit the transaction. Once the transaction is 
+  # committed, all three connections can read the new content.
+  #
+  do_test pager1-$tn.25 { sql1 { UPDATE t1 SET a = a+10 } } {}
+  do_test pager1-$tn.26 { sql1 { COMMIT } } {}
+  do_test pager1-$tn.27 { sql1 { SELECT * FROM t1 } } {21 one 22 two 23 three}
+  do_test pager1-$tn.27 { sql2 { SELECT * FROM t1 } } {21 one 22 two 23 three}
+  do_test pager1-$tn.28 { sql3 { SELECT * FROM t1 } } {21 one 22 two 23 three}
+
+  # Install a busy-handler for connection [db].
+  #
+  set ::nbusy [list]
+  proc busy {n} {
+    lappend ::nbusy $n
+    if {$n>5} { sql2 COMMIT }
+    return 0
+  }
+  db busy busy
+
+  do_test pager1-$tn.29 { 
+    sql1 { BEGIN ; INSERT INTO t1 VALUES('x', 'y') } 
+  } {}
+  do_test pager1-$tn.30 { 
+    sql2 { BEGIN ; SELECT * FROM t1 } 
+  } {21 one 22 two 23 three}
+  do_test pager1-$tn.31 { sql1 COMMIT } {}
+  do_test pager1-$tn.32 { set ::nbusy } {0 1 2 3 4 5 6}
+}
+
+#-------------------------------------------------------------------------
+# Savepoint related test cases.
+#
+# pager1-3.1.2.*: Force a savepoint rollback to cause the database file
+#                 to grow.
+#
+# pager1-3.1.3.*: Use a journal created in synchronous=off mode as part
+#                 of a savepoint rollback.
+# 
+do_test pager1-3.1.1 {
+  faultsim_delete_and_reopen
+  execsql {
+    CREATE TABLE t1(a PRIMARY KEY, b);
+    CREATE TABLE counter(
+      i CHECK (i<5), 
+      u CHECK (u<10)
+    );
+    INSERT INTO counter VALUES(0, 0);
+    CREATE TRIGGER tr1 AFTER INSERT ON t1 BEGIN
+      UPDATE counter SET i = i+1;
+    END;
+    CREATE TRIGGER tr2 AFTER UPDATE ON t1 BEGIN
+      UPDATE counter SET u = u+1;
+    END;
+  }
+  execsql { SELECT * FROM counter }
+} {0 0}
+
+do_execsql_test pager1-3.1.2 {
+  PRAGMA cache_size = 10;
+  BEGIN;
+    INSERT INTO t1 VALUES(1, randomblob(1500));
+    INSERT INTO t1 VALUES(2, randomblob(1500));
+    INSERT INTO t1 VALUES(3, randomblob(1500));
+    SELECT * FROM counter;
+} {3 0}
+do_catchsql_test pager1-3.1.3 {
+    INSERT INTO t1 SELECT a+3, randomblob(1500) FROM t1
+} {1 {CHECK constraint failed: i<5}}
+do_execsql_test pager1-3.4 { SELECT * FROM counter } {3 0}
+do_execsql_test pager1-3.5 { SELECT a FROM t1 } {1 2 3}
+do_execsql_test pager1-3.6 { COMMIT } {}
+
+foreach {tn sql tcl} {
+  7  { PRAGMA synchronous = NORMAL ; PRAGMA temp_store = 0 } {
+    testvfs tv -default 1
+    tv devchar safe_append
+  }
+  8  { PRAGMA synchronous = NORMAL ; PRAGMA temp_store = 2 } {
+    testvfs tv -default 1
+    tv devchar sequential
+  }
+  9  { PRAGMA synchronous = FULL } { }
+  10 { PRAGMA synchronous = NORMAL } { }
+  11 { PRAGMA synchronous = OFF } { }
+  12 { PRAGMA synchronous = FULL ; PRAGMA fullfsync = 1 } { }
+  13 { PRAGMA synchronous = FULL } {
+    testvfs tv -default 1
+    tv devchar sequential
+  }
+  14 { PRAGMA locking_mode = EXCLUSIVE } {
+  }
+} {
+  do_test pager1-3.$tn.1 {
+    eval $tcl
+    faultsim_delete_and_reopen
+    db func a_string a_string
+    execsql $sql
+    execsql {
+      PRAGMA auto_vacuum = 2;
+      PRAGMA cache_size = 10;
+      CREATE TABLE z(x INTEGER PRIMARY KEY, y);
+      BEGIN;
+        INSERT INTO z VALUES(NULL, a_string(800));
+        INSERT INTO z SELECT NULL, a_string(800) FROM z;     --   2
+        INSERT INTO z SELECT NULL, a_string(800) FROM z;     --   4
+        INSERT INTO z SELECT NULL, a_string(800) FROM z;     --   8
+        INSERT INTO z SELECT NULL, a_string(800) FROM z;     --  16
+        INSERT INTO z SELECT NULL, a_string(800) FROM z;     --  32
+        INSERT INTO z SELECT NULL, a_string(800) FROM z;     --  64
+        INSERT INTO z SELECT NULL, a_string(800) FROM z;     -- 128
+        INSERT INTO z SELECT NULL, a_string(800) FROM z;     -- 256
+      COMMIT;
+    }
+    execsql { PRAGMA auto_vacuum }
+  } {2}
+  do_execsql_test pager1-3.$tn.2 {
+    BEGIN;
+      INSERT INTO z VALUES(NULL, a_string(800));
+      INSERT INTO z VALUES(NULL, a_string(800));
+      SAVEPOINT one;
+        UPDATE z SET y = NULL WHERE x>256;
+        PRAGMA incremental_vacuum;
+        SELECT count(*) FROM z WHERE x < 100;
+      ROLLBACK TO one;
+    COMMIT;
+  } {99}
+
+  do_execsql_test pager1-3.$tn.3 {
+    BEGIN;
+      SAVEPOINT one;
+        UPDATE z SET y = y||x;
+      ROLLBACK TO one;
+    COMMIT;
+    SELECT count(*) FROM z;
+  } {258}
+
+  do_execsql_test pager1-3.$tn.4 {
+    SAVEPOINT one;
+      UPDATE z SET y = y||x;
+    ROLLBACK TO one;
+  } {}
+  do_execsql_test pager1-3.$tn.5 {
+    SELECT count(*) FROM z;
+    RELEASE one;
+    PRAGMA integrity_check;
+  } {258 ok}
+
+  do_execsql_test pager1-3.$tn.6 {
+    SAVEPOINT one;
+    RELEASE one;
+  } {}
+
+  db close
+  catch { tv delete }
+}
+
+#-------------------------------------------------------------------------
+# Hot journal rollback related test cases.
+#
+# pager1.4.1.*: Test that the pager module deletes very small invalid
+#               journal files.
+#
+# pager1.4.2.*: Test that if the master journal pointer at the end of a
+#               hot-journal file appears to be corrupt (checksum does not
+#               compute) the associated journal is rolled back (and no
+#               xAccess() call to check for the presence of any master 
+#               journal file is made).
+#
+# pager1.4.3.*: Test that the contents of a hot-journal are ignored if the
+#               page-size or sector-size in the journal header appear to
+#               be invalid (too large, too small or not a power of 2).
+#
+# pager1.4.4.*: Test hot-journal rollback of journal file with a master
+#               journal pointer generated in various "PRAGMA synchronous"
+#               modes.
+#
+# pager1.4.5.*: Test that hot-journal rollback stops if it encounters a
+#               journal-record for which the checksum fails.
+#
+# pager1.4.6.*: Test that when rolling back a hot-journal that contains a
+#               master journal pointer, the master journal file is deleted
+#               after all the hot-journals that refer to it are deleted.
+#
+# pager1.4.7.*: Test that if a hot-journal file exists but a client can
+#               open it for reading only, the database cannot be accessed and
+#               SQLITE_CANTOPEN is returned.
+# 
+do_test pager1.4.1.1 {
+  faultsim_delete_and_reopen
+  execsql { 
+    CREATE TABLE x(y, z);
+    INSERT INTO x VALUES(1, 2);
+  }
+  set fd [open test.db-journal w]
+  puts -nonewline $fd "helloworld"
+  close $fd
+  file exists test.db-journal
+} {1}
+do_test pager1.4.1.2 { execsql { SELECT * FROM x } } {1 2}
+do_test pager1.4.1.3 { file exists test.db-journal } {0}
+
+# Set up a [testvfs] to snapshot the file-system just before SQLite
+# deletes the master-journal to commit a multi-file transaction.
+#
+# In subsequent test cases, invoking [faultsim_restore_and_reopen] sets
+# up the file system to contain two databases, two hot-journal files and
+# a master-journal.
+#
+do_test pager1.4.2.1 {
+  testvfs tstvfs -default 1
+  tstvfs filter xDelete
+  tstvfs script xDeleteCallback
+  proc xDeleteCallback {method file args} {
+    set file [file tail $file]
+    if { [string match *mj* $file] } { faultsim_save }
+  }
+  faultsim_delete_and_reopen
+  db func a_string a_string
+  execsql {
+    ATTACH 'test.db2' AS aux;
+    PRAGMA journal_mode = DELETE;
+    PRAGMA main.cache_size = 10;
+    PRAGMA aux.cache_size = 10;
+    CREATE TABLE t1(a UNIQUE, b UNIQUE);
+    CREATE TABLE aux.t2(a UNIQUE, b UNIQUE);
+    INSERT INTO t1 VALUES(a_string(200), a_string(300));
+    INSERT INTO t1 SELECT a_string(200), a_string(300) FROM t1;
+    INSERT INTO t1 SELECT a_string(200), a_string(300) FROM t1;
+    INSERT INTO t2 SELECT * FROM t1;
+    BEGIN;
+      INSERT INTO t1 SELECT a_string(201), a_string(301) FROM t1;
+      INSERT INTO t1 SELECT a_string(202), a_string(302) FROM t1;
+      INSERT INTO t1 SELECT a_string(203), a_string(303) FROM t1;
+      INSERT INTO t1 SELECT a_string(204), a_string(304) FROM t1;
+      REPLACE INTO t2 SELECT * FROM t1;
+    COMMIT;
+  }
+  db close
+  tstvfs delete
+} {}
+
+if {$::tcl_platform(platform)!="windows"} {
+do_test pager1.4.2.2 {
+  faultsim_restore_and_reopen
+  execsql {
+    SELECT count(*) FROM t1;
+    PRAGMA integrity_check;
+  }
+} {4 ok}
+do_test pager1.4.2.3 {
+  faultsim_restore_and_reopen
+  foreach f [glob test.db-mj*] { forcedelete $f }
+  execsql {
+    SELECT count(*) FROM t1;
+    PRAGMA integrity_check;
+  }
+} {64 ok}
+do_test pager1.4.2.4 {
+  faultsim_restore_and_reopen
+  hexio_write test.db-journal [expr [file size test.db-journal]-30] 123456
+  execsql {
+    SELECT count(*) FROM t1;
+    PRAGMA integrity_check;
+  }
+} {4 ok}
+do_test pager1.4.2.5 {
+  faultsim_restore_and_reopen
+  hexio_write test.db-journal [expr [file size test.db-journal]-30] 123456
+  foreach f [glob test.db-mj*] { forcedelete $f }
+  execsql {
+    SELECT count(*) FROM t1;
+    PRAGMA integrity_check;
+  }
+} {4 ok}
+}
+
+do_test pager1.4.3.1 {
+  testvfs tstvfs -default 1
+  tstvfs filter xSync
+  tstvfs script xSyncCallback
+  proc xSyncCallback {method file args} {
+    set file [file tail $file]
+    if { 0==[string match *journal $file] } { faultsim_save }
+  }
+  faultsim_delete_and_reopen
+  execsql {
+    PRAGMA journal_mode = DELETE;
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, 2);
+    INSERT INTO t1 VALUES(3, 4);
+  }
+  db close
+  tstvfs delete
+} {}
+
+foreach {tn ofst value result} {
+          2   20    31       {1 2 3 4}
+          3   20    32       {1 2 3 4}
+          4   20    33       {1 2 3 4}
+          5   20    65536    {1 2 3 4}
+          6   20    131072   {1 2 3 4}
+
+          7   24    511      {1 2 3 4}
+          8   24    513      {1 2 3 4}
+          9   24    131072   {1 2 3 4}
+
+         10   32    65536    {1 2}
+} {
+  do_test pager1.4.3.$tn {
+    faultsim_restore_and_reopen
+    hexio_write test.db-journal $ofst [format %.8x $value]
+    execsql { SELECT * FROM t1 }
+  } $result
+}
+db close
+
+# Set up a VFS that snapshots the file-system just before a master journal
+# file is deleted to commit a multi-file transaction. Specifically, the
+# file-system is saved just before the xDelete() call to remove the 
+# master journal file from the file-system.
+#
+set pwd [get_pwd]
+testvfs tv -default 1
+tv script copy_on_mj_delete
+set ::mj_filename_length 0
+set ::mj_delete_cnt 0
+proc copy_on_mj_delete {method filename args} {
+  if {[string match *mj* [file tail $filename]]} { 
+    #
+    # NOTE: Is the file name relative?  If so, add the length of the current
+    #       directory.
+    #
+    if {[is_relative_file $filename]} {
+      set ::mj_filename_length \
+        [expr {[string length $filename] + [string length $::pwd]}]
+    } else {
+      set ::mj_filename_length [string length $filename]
+    }
+    faultsim_save 
+    incr ::mj_delete_cnt
+  }
+  return SQLITE_OK
+}
+
+foreach {tn1 tcl} {
+  1 { set prefix "test.db" }
+  2 { 
+    # This test depends on the underlying VFS being able to open paths
+    # 512 bytes in length. The idea is to create a hot-journal file that
+    # contains a master-journal pointer so large that it could contain
+    # a valid page record (if the file page-size is 512 bytes). So as to
+    # make sure SQLite doesn't get confused by this.
+    #
+    set nPadding [expr 511 - $::mj_filename_length]
+    if {$tcl_platform(platform)=="windows"} {
+      # TBD need to figure out how to do this correctly for Windows!!!
+      set nPadding [expr 255 - $::mj_filename_length]
+    }
+
+    # We cannot just create a really long database file name to open, as
+    # Linux limits a single component of a path to 255 bytes by default
+    # (and presumably other systems have limits too). So create a directory
+    # hierarchy to work in.
+    #
+    set dirname "d123456789012345678901234567890/"
+    set nDir [expr $nPadding / 32]
+    if { $nDir } {
+      set p [string repeat $dirname $nDir]
+      file mkdir $p
+      cd $p
+    }
+
+    set padding [string repeat x [expr $nPadding %32]]
+    set prefix "test.db${padding}"
+  }
+} {
+  eval $tcl
+  foreach {tn2 sql usesMJ} {
+    o { 
+      PRAGMA main.synchronous=OFF;
+      PRAGMA aux.synchronous=OFF;
+      PRAGMA journal_mode = DELETE;
+    } 0
+    o512 { 
+      PRAGMA main.synchronous=OFF;
+      PRAGMA aux.synchronous=OFF;
+      PRAGMA main.page_size = 512;
+      PRAGMA aux.page_size = 512;
+      PRAGMA journal_mode = DELETE;
+    } 0
+    n { 
+      PRAGMA main.synchronous=NORMAL;
+      PRAGMA aux.synchronous=NORMAL;
+      PRAGMA journal_mode = DELETE;
+    } 1
+    f { 
+      PRAGMA main.synchronous=FULL;
+      PRAGMA aux.synchronous=FULL;
+      PRAGMA journal_mode = DELETE;
+    } 1
+    w1 { 
+      PRAGMA main.synchronous=NORMAL;
+      PRAGMA aux.synchronous=NORMAL;
+      PRAGMA journal_mode = WAL;
+    } 0
+    w2 { 
+      PRAGMA main.synchronous=NORMAL;
+      PRAGMA aux.synchronous=NORMAL;
+      PRAGMA main.journal_mode=DELETE;
+      PRAGMA aux.journal_mode=WAL;
+    } 0
+    o1a { 
+      PRAGMA main.synchronous=FULL;
+      PRAGMA aux.synchronous=OFF;
+      PRAGMA journal_mode=DELETE;
+    } 0
+    o1b { 
+      PRAGMA main.synchronous=OFF;
+      PRAGMA aux.synchronous=NORMAL;
+      PRAGMA journal_mode=DELETE;
+    } 0
+    m1 { 
+      PRAGMA main.synchronous=NORMAL;
+      PRAGMA aux.synchronous=NORMAL;
+      PRAGMA main.journal_mode=DELETE;
+      PRAGMA aux.journal_mode = MEMORY;
+    } 0
+    t1 { 
+      PRAGMA main.synchronous=NORMAL;
+      PRAGMA aux.synchronous=NORMAL;
+      PRAGMA main.journal_mode=DELETE;
+      PRAGMA aux.journal_mode = TRUNCATE;
+    } 1
+    p1 { 
+      PRAGMA main.synchronous=NORMAL;
+      PRAGMA aux.synchronous=NORMAL;
+      PRAGMA main.journal_mode=DELETE;
+      PRAGMA aux.journal_mode = PERSIST;
+    } 1
+  } {
+
+    set tn "${tn1}.${tn2}"
+  
+    # Set up a connection to have two databases, test.db (main) and 
+    # test.db2 (aux). Then run a multi-file transaction on them. The
+    # VFS will snapshot the file-system just before the master-journal
+    # file is deleted to commit the transaction.
+    #
+    tv filter xDelete
+    do_test pager1-4.4.$tn.1 {
+      set ::mj_delete_cnt 0
+      faultsim_delete_and_reopen $prefix
+      execsql "
+        ATTACH '${prefix}2' AS aux;
+        $sql
+        CREATE TABLE a(x);
+        CREATE TABLE aux.b(x);
+        INSERT INTO a VALUES('double-you');
+        INSERT INTO a VALUES('why');
+        INSERT INTO a VALUES('zed');
+        INSERT INTO b VALUES('won');
+        INSERT INTO b VALUES('too');
+        INSERT INTO b VALUES('free');
+      "
+      execsql {
+        BEGIN;
+          INSERT INTO a SELECT * FROM b WHERE rowid<=3;
+          INSERT INTO b SELECT * FROM a WHERE rowid<=3;
+        COMMIT;
+      }
+    } {}
+    tv filter {}
+
+    # Verify that a master journal was deleted only for those cases where
+    # master journals really ought to be used
+    #
+    do_test pager1-4.4.$tn.1b {
+      set ::mj_delete_cnt
+    } $usesMJ
+    
+    # Check that the transaction was committed successfully.
+    #
+    do_execsql_test pager1-4.4.$tn.2 {
+      SELECT * FROM a
+    } {double-you why zed won too free}
+    do_execsql_test pager1-4.4.$tn.3 {
+      SELECT * FROM b
+    } {won too free double-you why zed}
+    
+    if {$usesMJ} {
+      # Restore the file-system and reopen the databases. Check that it now
+      # appears that the transaction was not committed (because the file-system
+      # was restored to the state where it had not been).
+      #
+      do_test pager1-4.4.$tn.4 {
+        faultsim_restore_and_reopen $prefix
+        execsql "ATTACH '${prefix}2' AS aux"
+      } {}
+      do_execsql_test pager1-4.4.$tn.5 {SELECT * FROM a} {double-you why zed}
+      do_execsql_test pager1-4.4.$tn.6 {SELECT * FROM b} {won too free}
+    }
+    
+    # Restore the file-system again. This time, before reopening the databases,
+    # delete the master-journal file from the file-system. It now appears that
+    # the transaction was committed (no master-journal file == no rollback).
+    #
+    do_test pager1-4.4.$tn.7 {
+      if {$::mj_delete_cnt>0} {
+        faultsim_restore_and_reopen $prefix
+        foreach f [glob ${prefix}-mj*] { forcedelete $f }
+      } else {
+        db close
+        sqlite3 db $prefix
+      }
+      execsql "ATTACH '${prefix}2' AS aux"
+      glob -nocomplain ${prefix}-mj*
+    } {}
+    do_execsql_test pager1-4.4.$tn.8 {
+      SELECT * FROM a
+    } {double-you why zed won too free}
+    do_execsql_test pager1-4.4.$tn.9 {
+      SELECT * FROM b
+    } {won too free double-you why zed}
+  }
+
+  cd $pwd
+}
+db close
+tv delete
+forcedelete $dirname
+
+# Set up a VFS to make a copy of the file-system just before deleting a
+# journal file to commit a transaction. The transaction modifies exactly
+# two database pages (and page 1 - the change counter).
+#
+testvfs tv -default 1
+tv sectorsize 512
+tv script copy_on_journal_delete
+tv filter xDelete
+proc copy_on_journal_delete {method filename args} {
+  if {[string match *journal $filename]} faultsim_save 
+  return SQLITE_OK
+}
+faultsim_delete_and_reopen
+do_execsql_test pager1.4.5.1 {
+  PRAGMA journal_mode = DELETE;
+  PRAGMA page_size = 1024;
+  CREATE TABLE t1(a, b);
+  CREATE TABLE t2(a, b);
+  INSERT INTO t1 VALUES('I', 'II');
+  INSERT INTO t2 VALUES('III', 'IV');
+  BEGIN;
+    INSERT INTO t1 VALUES(1, 2);
+    INSERT INTO t2 VALUES(3, 4);
+  COMMIT;
+} {delete}
+tv filter {}
+
+# Check the transaction was committed:
+#
+do_execsql_test pager1.4.5.2 {
+  SELECT * FROM t1;
+  SELECT * FROM t2;
+} {I II 1 2 III IV 3 4}
+
+# Now try four tests:
+#
+#  pager1-4.5.3: Restore the file-system. Check that the whole transaction 
+#                is rolled back.
+#
+#  pager1-4.5.4: Restore the file-system. Corrupt the first record in the
+#                journal. Check the transaction is not rolled back.
+#
+#  pager1-4.5.5: Restore the file-system. Corrupt the second record in the
+#                journal. Check that the first record in the transaction is 
+#                played back, but not the second.
+#
+#  pager1-4.5.6: Restore the file-system. Try to open the database with a
+#                readonly connection. This should fail, as a read-only
+#                connection cannot roll back the database file.
+#
+faultsim_restore_and_reopen
+do_execsql_test pager1.4.5.3 {
+  SELECT * FROM t1;
+  SELECT * FROM t2;
+} {I II III IV}
+faultsim_restore_and_reopen
+hexio_write test.db-journal [expr 512+4+1024 - 202] 0123456789ABCDEF
+do_execsql_test pager1.4.5.4 {
+  SELECT * FROM t1;
+  SELECT * FROM t2;
+} {I II 1 2 III IV 3 4}
+faultsim_restore_and_reopen
+hexio_write test.db-journal [expr 512+4+1024+4+4+1024 - 202] 0123456789ABCDEF
+do_execsql_test pager1.4.5.5 {
+  SELECT * FROM t1;
+  SELECT * FROM t2;
+} {I II III IV 3 4}
+
+faultsim_restore_and_reopen
+db close
+sqlite3 db test.db -readonly 1
+do_catchsql_test pager1.4.5.6 {
+  SELECT * FROM t1;
+  SELECT * FROM t2;
+} {1 {attempt to write a readonly database}}
+db close
+
+# Snapshot the file-system just before multi-file commit. Save the name
+# of the master journal file in $::mj_filename.
+#
+tv script copy_on_mj_delete
+tv filter xDelete
+proc copy_on_mj_delete {method filename args} {
+  if {[string match *mj* [file tail $filename]]} { 
+    set ::mj_filename $filename
+    faultsim_save 
+  }
+  return SQLITE_OK
+}
+do_test pager1.4.6.1 {
+  faultsim_delete_and_reopen
+  execsql {
+    PRAGMA journal_mode = DELETE;
+    ATTACH 'test.db2' AS two;
+    CREATE TABLE t1(a, b);
+    CREATE TABLE two.t2(a, b);
+    INSERT INTO t1 VALUES(1, 't1.1');
+    INSERT INTO t2 VALUES(1, 't2.1');
+    BEGIN;
+      UPDATE t1 SET b = 't1.2';
+      UPDATE t2 SET b = 't2.2';
+    COMMIT;
+  }
+  tv filter {}
+  db close
+} {}
+
+faultsim_restore_and_reopen
+do_execsql_test pager1.4.6.2 { SELECT * FROM t1 }           {1 t1.1}
+do_test         pager1.4.6.3 { file exists $::mj_filename } {1}
+do_execsql_test pager1.4.6.4 {
+  ATTACH 'test.db2' AS two;
+  SELECT * FROM t2;
+} {1 t2.1}
+do_test pager1.4.6.5 { file exists $::mj_filename } {0}
+
+faultsim_restore_and_reopen
+db close
+do_test pager1.4.6.8 {
+  set ::mj_filename1 $::mj_filename
+  tv filter xDelete
+  sqlite3 db test.db2
+  execsql {
+    PRAGMA journal_mode = DELETE;
+    ATTACH 'test.db3' AS three;
+    CREATE TABLE three.t3(a, b);
+    INSERT INTO t3 VALUES(1, 't3.1');
+    BEGIN;
+      UPDATE t2 SET b = 't2.3';
+      UPDATE t3 SET b = 't3.3';
+    COMMIT;
+  }
+  expr {$::mj_filename1 != $::mj_filename}
+} {1}
+faultsim_restore_and_reopen
+tv filter {}
+
+# The file-system now contains:
+#
+#   * three databases
+#   * three hot-journal files
+#   * two master-journal files.
+#
+# The hot-journals associated with test.db2 and test.db3 point to
+# master journal $::mj_filename. The hot-journal file associated with
+# test.db points to master journal $::mj_filename1. So reading from
+# test.db should delete $::mj_filename1.
+#
+do_test pager1.4.6.9 {
+  lsort [glob test.db*]
+} [lsort [list                                           \
+  test.db test.db2 test.db3                              \
+  test.db-journal test.db2-journal test.db3-journal      \
+  [file tail $::mj_filename] [file tail $::mj_filename1]
+]]
+
+# The master-journal $::mj_filename1 contains pointers to test.db and 
+# test.db2. However the hot-journal associated with test.db2 points to
+# a different master-journal. Therefore, reading from test.db only should
+# be enough to cause SQLite to delete $::mj_filename1.
+#
+do_test         pager1.4.6.10 { file exists $::mj_filename  } {1}
+do_test         pager1.4.6.11 { file exists $::mj_filename1 } {1}
+do_execsql_test pager1.4.6.12 { SELECT * FROM t1 } {1 t1.1}
+do_test         pager1.4.6.13 { file exists $::mj_filename  } {1}
+do_test         pager1.4.6.14 { file exists $::mj_filename1 } {0}
+
+do_execsql_test pager1.4.6.12 {
+  ATTACH 'test.db2' AS two;
+  SELECT * FROM t2;
+} {1 t2.1}
+do_test         pager1.4.6.13 { file exists $::mj_filename }  {1}
+do_execsql_test pager1.4.6.14 {
+  ATTACH 'test.db3' AS three;
+  SELECT * FROM t3;
+} {1 t3.1}
+do_test         pager1.4.6.15 { file exists $::mj_filename }  {0}
+
+db close
+tv delete
+
+testvfs tv -default 1
+tv sectorsize 512
+tv script copy_on_journal_delete
+tv filter xDelete
+proc copy_on_journal_delete {method filename args} {
+  if {[string match *journal $filename]} faultsim_save 
+  return SQLITE_OK
+}
+faultsim_delete_and_reopen
+do_execsql_test pager1.4.7.1 {
+  PRAGMA journal_mode = DELETE;
+  CREATE TABLE t1(x PRIMARY KEY, y);
+  CREATE INDEX i1 ON t1(y);
+  INSERT INTO t1 VALUES('I',   'one');
+  INSERT INTO t1 VALUES('II',  'four');
+  INSERT INTO t1 VALUES('III', 'nine');
+  BEGIN;
+    INSERT INTO t1 VALUES('IV', 'sixteen');
+    INSERT INTO t1 VALUES('V' , 'twentyfive');
+  COMMIT;
+} {delete}
+tv filter {}
+db close
+tv delete 
+catch {
+  test_syscall install fchmod
+  test_syscall fault 1 1
+}
+do_test pager1.4.7.2 {
+  faultsim_restore_and_reopen
+  catch {file attributes test.db-journal -permissions r--------}
+  catch {file attributes test.db-journal -readonly 1}
+  catchsql { SELECT * FROM t1 }
+} {1 {unable to open database file}}
+catch {
+  test_syscall reset
+  test_syscall fault 0 0
+}
+do_test pager1.4.7.3 {
+  db close
+  catch {file attributes test.db-journal -permissions rw-rw-rw-}
+  catch {file attributes test.db-journal -readonly 0}
+  delete_file test.db-journal
+  file exists test.db-journal
+} {0}
+do_test pager1.4.8.1 {
+  catch {file attributes test.db -permissions r--------}
+  catch {file attributes test.db -readonly 1}
+  sqlite3 db test.db
+  db eval { SELECT * FROM t1 }
+  sqlite3_db_readonly db main
+} {1}
+do_test pager1.4.8.2 {
+  sqlite3_db_readonly db xyz
+} {-1}
+do_test pager1.4.8.3 {
+  db close
+  catch {file attributes test.db -readonly 0}
+  catch {file attributes test.db -permissions rw-rw-rw-} msg
+  sqlite3 db test.db
+  db eval { SELECT * FROM t1 }
+  sqlite3_db_readonly db main
+} {0}
+
+#-------------------------------------------------------------------------
+# The following tests deal with multi-file commits.
+#
+# pager1-5.1.*: The case where a multi-file cannot be committed because
+#               another connection is holding a SHARED lock on one of the
+#               files. After the SHARED lock is removed, the COMMIT succeeds.
+#
+# pager1-5.2.*: Multi-file commits with journal_mode=memory.
+#
+# pager1-5.3.*: Multi-file commits with journal_mode=memory.
+#
+# pager1-5.4.*: Check that with synchronous=normal, the master-journal file
+#               name is added to a journal file immediately after the last
+#               journal record. But with synchronous=full, extra unused space
+#               is allocated between the last journal record and the 
+#               master-journal file name so that the master-journal file
+#               name does not lie on the same sector as the last journal file
+#               record.
+#
+# pager1-5.5.*: Check that in journal_mode=PERSIST mode, a journal file is
+#               truncated to zero bytes when a multi-file transaction is 
+#               committed (instead of the first couple of bytes being zeroed).
+#
+#
+do_test pager1-5.1.1 {
+  faultsim_delete_and_reopen
+  execsql {
+    ATTACH 'test.db2' AS aux;
+    CREATE TABLE t1(a, b);
+    CREATE TABLE aux.t2(a, b);
+    INSERT INTO t1 VALUES(17, 'Lenin');
+    INSERT INTO t1 VALUES(22, 'Stalin');
+    INSERT INTO t1 VALUES(53, 'Khrushchev');
+  }
+} {}
+do_test pager1-5.1.2 {
+  execsql {
+    BEGIN;
+      INSERT INTO t1 VALUES(64, 'Brezhnev');
+      INSERT INTO t2 SELECT * FROM t1;
+  }
+  sqlite3 db2 test.db2
+  execsql {
+    BEGIN;
+      SELECT * FROM t2;
+  } db2
+} {}
+do_test pager1-5.1.3 {
+  catchsql COMMIT
+} {1 {database is locked}}
+do_test pager1-5.1.4 {
+  execsql COMMIT db2
+  execsql COMMIT
+  execsql { SELECT * FROM t2 } db2
+} {17 Lenin 22 Stalin 53 Khrushchev 64 Brezhnev}
+do_test pager1-5.1.5 {
+  db2 close
+} {}
+
+do_test pager1-5.2.1 {
+  execsql {
+    PRAGMA journal_mode = memory;
+    BEGIN;
+      INSERT INTO t1 VALUES(84, 'Andropov');
+      INSERT INTO t2 VALUES(84, 'Andropov');
+    COMMIT;
+  }
+} {memory}
+do_test pager1-5.3.1 {
+  execsql {
+    PRAGMA journal_mode = off;
+    BEGIN;
+      INSERT INTO t1 VALUES(85, 'Gorbachev');
+      INSERT INTO t2 VALUES(85, 'Gorbachev');
+    COMMIT;
+  }
+} {off}
+
+do_test pager1-5.4.1 {
+  db close
+  testvfs tv
+  sqlite3 db test.db -vfs tv
+  execsql { ATTACH 'test.db2' AS aux }
+
+  tv filter xDelete
+  tv script max_journal_size
+  tv sectorsize 512
+  set ::max_journal 0
+  proc max_journal_size {method args} {
+    set sz 0
+    catch { set sz [file size test.db-journal] }
+    if {$sz > $::max_journal} {
+      set ::max_journal $sz
+    }
+    return SQLITE_OK
+  }
+  execsql {
+    PRAGMA journal_mode = DELETE;
+    PRAGMA synchronous = NORMAL;
+    BEGIN;
+      INSERT INTO t1 VALUES(85, 'Gorbachev');
+      INSERT INTO t2 VALUES(85, 'Gorbachev');
+    COMMIT;
+  }
+
+  # The size of the journal file is now:
+  # 
+  #   1) 512 byte header +
+  #   2) 2 * (1024+8) byte records +
+  #   3) 20+N bytes of master-journal pointer, where N is the size of 
+  #      the master-journal name encoded as utf-8 with no nul term.
+  #
+  set mj_pointer [expr {
+    20 + [string length "test.db-mjXXXXXX9XX"]
+  }]
+  #
+  #   NOTE: For item 3 above, if the current SQLite VFS lacks the concept of a
+  #         current directory, the length of the current directory name plus 1
+  #         character for the directory separator character are NOT counted as
+  #         part of the total size; otherwise, they are.
+  #
+  ifcapable curdir {
+    set mj_pointer [expr {$mj_pointer + [string length [get_pwd]] + 1}]
+  }
+  expr {$::max_journal==(512+2*(1024+8)+$mj_pointer)}
+} 1
+do_test pager1-5.4.2 {
+  set ::max_journal 0
+  execsql {
+    PRAGMA synchronous = full;
+    BEGIN;
+      DELETE FROM t1 WHERE b = 'Lenin';
+      DELETE FROM t2 WHERE b = 'Lenin';
+    COMMIT;
+  }
+
+  # In synchronous=full mode, the master-journal pointer is not written
+  # directly after the last record in the journal file. Instead, it is
+  # written starting at the next (in this case 512 byte) sector boundary.
+  #
+  set mj_pointer [expr {
+    20 + [string length "test.db-mjXXXXXX9XX"]
+  }]
+  #
+  #   NOTE: If the current SQLite VFS lacks the concept of a current directory,
+  #         the length of the current directory name plus 1 character for the
+  #         directory separator character are NOT counted as part of the total
+  #         size; otherwise, they are.
+  #
+  ifcapable curdir {
+    set mj_pointer [expr {$mj_pointer + [string length [get_pwd]] + 1}]
+  }
+  expr {$::max_journal==(((512+2*(1024+8)+511)/512)*512 + $mj_pointer)}
+} 1
+db close
+tv delete
+
+do_test pager1-5.5.1 {
+  sqlite3 db test.db
+  execsql { 
+    ATTACH 'test.db2' AS aux;
+    PRAGMA journal_mode = PERSIST;
+    CREATE TABLE t3(a, b);
+    INSERT INTO t3 SELECT randomblob(1500), randomblob(1500) FROM t1;
+    UPDATE t3 SET b = randomblob(1501);
+  }
+  expr [file size test.db-journal] > 15000
+} {1}
+do_test pager1-5.5.2 {
+  execsql {
+    PRAGMA synchronous = full;
+    BEGIN;
+      DELETE FROM t1 WHERE b = 'Stalin';
+      DELETE FROM t2 WHERE b = 'Stalin';
+    COMMIT;
+  }
+  file size test.db-journal
+} {0}
+
+
+#-------------------------------------------------------------------------
+# The following tests work with "PRAGMA max_page_count"
+#
+do_test pager1-6.1 {
+  faultsim_delete_and_reopen
+  execsql {
+    PRAGMA auto_vacuum = none;
+    PRAGMA max_page_count = 10;
+    CREATE TABLE t2(a, b);
+    CREATE TABLE t3(a, b);
+    CREATE TABLE t4(a, b);
+    CREATE TABLE t5(a, b);
+    CREATE TABLE t6(a, b);
+    CREATE TABLE t7(a, b);
+    CREATE TABLE t8(a, b);
+    CREATE TABLE t9(a, b);
+    CREATE TABLE t10(a, b);
+  }
+} {10}
+do_catchsql_test pager1-6.2 {
+  CREATE TABLE t11(a, b)
+} {1 {database or disk is full}}
+do_execsql_test pager1-6.4 { PRAGMA max_page_count      } {10}
+do_execsql_test pager1-6.5 { PRAGMA max_page_count = 15 } {15}
+do_execsql_test pager1-6.6 { CREATE TABLE t11(a, b)     } {}
+do_execsql_test pager1-6.7 {
+  BEGIN;
+    INSERT INTO t11 VALUES(1, 2);
+    PRAGMA max_page_count = 13;
+} {13}
+do_execsql_test pager1-6.8 {
+    INSERT INTO t11 VALUES(3, 4);
+    PRAGMA max_page_count = 10;
+} {11}
+do_execsql_test pager1-6.9 { COMMIT } {}
+
+do_execsql_test pager1-6.10 { PRAGMA max_page_count = 10 } {11}
+do_execsql_test pager1-6.11 { SELECT * FROM t11 }          {1 2 3 4}
+do_execsql_test pager1-6.12 { PRAGMA max_page_count }      {11}
+
+
+#-------------------------------------------------------------------------
+# The following tests work with "PRAGMA journal_mode=TRUNCATE" and
+# "PRAGMA locking_mode=EXCLUSIVE".
+#
+# Each test is specified with 5 variables. As follows:
+#
+#   $tn:  Test Number. Used as part of the [do_test] test names.
+#   $sql: SQL to execute.
+#   $res: Expected result of executing $sql.
+#   $js:  The expected size of the journal file, in bytes, after executing
+#         the SQL script. Or -1 if the journal is not expected to exist.
+#   $ws:  The expected size of the WAL file, in bytes, after executing
+#         the SQL script. Or -1 if the WAL is not expected to exist.
+#
+ifcapable wal {
+  faultsim_delete_and_reopen
+  foreach {tn sql res js ws} [subst {
+  
+    1  {
+      CREATE TABLE t1(a, b);
+      PRAGMA auto_vacuum=OFF;
+      PRAGMA synchronous=NORMAL;
+      PRAGMA page_size=1024;
+      PRAGMA locking_mode=EXCLUSIVE;
+      PRAGMA journal_mode=TRUNCATE;
+      INSERT INTO t1 VALUES(1, 2);
+    } {exclusive truncate} 0 -1
+  
+    2  {
+      BEGIN IMMEDIATE;
+        SELECT * FROM t1;
+      COMMIT;
+    } {1 2} 0 -1
+  
+    3  {
+      BEGIN;
+        SELECT * FROM t1;
+      COMMIT;
+    } {1 2} 0 -1
+  
+    4  { PRAGMA journal_mode = WAL }    wal       -1 -1
+    5  { INSERT INTO t1 VALUES(3, 4) }  {}        -1 [wal_file_size 1 1024]
+    6  { PRAGMA locking_mode = NORMAL } exclusive -1 [wal_file_size 1 1024]
+    7  { INSERT INTO t1 VALUES(5, 6); } {}        -1 [wal_file_size 2 1024]
+  
+    8  { PRAGMA journal_mode = TRUNCATE } truncate          0 -1
+    9  { INSERT INTO t1 VALUES(7, 8) }    {}                0 -1
+    10 { SELECT * FROM t1 }               {1 2 3 4 5 6 7 8} 0 -1
+  
+  }] {
+    do_execsql_test pager1-7.1.$tn.1 $sql $res
+    catch { set J -1 ; set J [file size test.db-journal] }
+    catch { set W -1 ; set W [file size test.db-wal] }
+    do_test pager1-7.1.$tn.2 { list $J $W } [list $js $ws]
+  }
+}
+
+do_test pager1-7.2.1 {
+  faultsim_delete_and_reopen
+  execsql {
+    PRAGMA locking_mode = EXCLUSIVE;
+    CREATE TABLE t1(a, b);
+    BEGIN;
+      PRAGMA journal_mode = delete;
+      PRAGMA journal_mode = truncate;
+  }
+} {exclusive delete truncate}
+do_test pager1-7.2.2 {
+  execsql { INSERT INTO t1 VALUES(1, 2) }
+  execsql { PRAGMA journal_mode = persist }
+} {truncate}
+do_test pager1-7.2.3 {
+  execsql { COMMIT }
+  execsql {
+    PRAGMA journal_mode = persist;
+    PRAGMA journal_size_limit;
+  }
+} {persist -1}
+
+#-------------------------------------------------------------------------
+# The following tests, pager1-8.*, test that the special filenames 
+# ":memory:" and "" open temporary databases.
+#
+foreach {tn filename} {
+  1 :memory:
+  2 ""
+} {
+  do_test pager1-8.$tn.1 {
+    faultsim_delete_and_reopen
+    db close
+    sqlite3 db $filename
+    execsql {
+      PRAGMA auto_vacuum = 1;
+      CREATE TABLE x1(x);
+      INSERT INTO x1 VALUES('Charles');
+      INSERT INTO x1 VALUES('James');
+      INSERT INTO x1 VALUES('Mary');
+      SELECT * FROM x1;
+    }
+  } {Charles James Mary}
+
+  do_test pager1-8.$tn.2 {
+    sqlite3 db2 $filename
+    catchsql { SELECT * FROM x1 } db2
+  } {1 {no such table: x1}}
+
+  do_execsql_test pager1-8.$tn.3 {
+    BEGIN;
+      INSERT INTO x1 VALUES('William');
+      INSERT INTO x1 VALUES('Anne');
+    ROLLBACK;
+  } {}
+}
+
+#-------------------------------------------------------------------------
+# The next block of tests - pager1-9.* - deal with interactions between
+# the pager and the backup API. Test cases:
+#
+#   pager1-9.1.*: Test that a backup completes successfully even if the
+#                 source db is written to during the backup op.
+#
+#   pager1-9.2.*: Test that a backup completes successfully even if the
+#                 source db is written to and then rolled back during a 
+#                 backup operation.
+#
+do_test pager1-9.0.1 {
+  faultsim_delete_and_reopen
+  db func a_string a_string
+  execsql {
+    PRAGMA cache_size = 10;
+    BEGIN;
+      CREATE TABLE ab(a, b, UNIQUE(a, b));
+      INSERT INTO ab VALUES( a_string(200), a_string(300) );
+      INSERT INTO ab SELECT a_string(200), a_string(300) FROM ab;
+      INSERT INTO ab SELECT a_string(200), a_string(300) FROM ab;
+      INSERT INTO ab SELECT a_string(200), a_string(300) FROM ab;
+      INSERT INTO ab SELECT a_string(200), a_string(300) FROM ab;
+      INSERT INTO ab SELECT a_string(200), a_string(300) FROM ab;
+      INSERT INTO ab SELECT a_string(200), a_string(300) FROM ab;
+      INSERT INTO ab SELECT a_string(200), a_string(300) FROM ab;
+    COMMIT;
+  }
+} {}
+do_test pager1-9.0.2 {
+  sqlite3 db2 test.db2
+  db2 eval { PRAGMA cache_size = 10 }
+  sqlite3_backup B db2 main db main
+  list [B step 10000] [B finish]
+} {SQLITE_DONE SQLITE_OK}
+do_test pager1-9.0.3 {
+ db one {SELECT md5sum(a, b) FROM ab}
+} [db2 one {SELECT md5sum(a, b) FROM ab}]
+
+do_test pager1-9.1.1 {
+  execsql { UPDATE ab SET a = a_string(201) }
+  sqlite3_backup B db2 main db main
+  B step 30
+} {SQLITE_OK}
+do_test pager1-9.1.2 {
+  execsql { UPDATE ab SET b = a_string(301) }
+  list [B step 10000] [B finish]
+} {SQLITE_DONE SQLITE_OK}
+do_test pager1-9.1.3 {
+ db one {SELECT md5sum(a, b) FROM ab}
+} [db2 one {SELECT md5sum(a, b) FROM ab}]
+do_test pager1-9.1.4 { execsql { SELECT count(*) FROM ab } } {128}
+
+do_test pager1-9.2.1 {
+  execsql { UPDATE ab SET a = a_string(202) }
+  sqlite3_backup B db2 main db main
+  B step 30
+} {SQLITE_OK}
+do_test pager1-9.2.2 {
+  execsql { 
+    BEGIN;
+      UPDATE ab SET b = a_string(301);
+    ROLLBACK;
+  }
+  list [B step 10000] [B finish]
+} {SQLITE_DONE SQLITE_OK}
+do_test pager1-9.2.3 {
+ db one {SELECT md5sum(a, b) FROM ab}
+} [db2 one {SELECT md5sum(a, b) FROM ab}]
+do_test pager1-9.2.4 { execsql { SELECT count(*) FROM ab } } {128}
+db close
+db2 close
+
+do_test pager1-9.3.1 {
+  testvfs tv -default 1
+  tv sectorsize 4096
+  faultsim_delete_and_reopen
+
+  execsql { PRAGMA page_size = 1024 }
+  for {set ii 0} {$ii < 4} {incr ii} { execsql "CREATE TABLE t${ii}(a, b)" }
+} {}
+if {[nonzero_reserved_bytes]} {
+  # backup with a page size changes is not possible with the codec
+  #
+  do_test pager1-9.3.2codec {
+    sqlite3 db2 test.db2
+    execsql {
+      PRAGMA page_size = 4096;
+      PRAGMA synchronous = OFF;
+      CREATE TABLE t1(a, b);
+      CREATE TABLE t2(a, b);
+    } db2
+    sqlite3_backup B db2 main db main
+    B step 30
+    list [B step 10000] [B finish]
+  } {SQLITE_READONLY SQLITE_READONLY}
+  do_test pager1-9.3.3codec {
+    db2 close
+    db close
+    tv delete
+    file size test.db2
+  } [file size test.db2]
+} else {
+  do_test pager1-9.3.2 {
+    sqlite3 db2 test.db2
+    execsql {
+      PRAGMA page_size = 4096;
+      PRAGMA synchronous = OFF;
+      CREATE TABLE t1(a, b);
+      CREATE TABLE t2(a, b);
+    } db2
+    sqlite3_backup B db2 main db main
+    B step 30
+    list [B step 10000] [B finish]
+  } {SQLITE_DONE SQLITE_OK}
+  do_test pager1-9.3.3 {
+    db2 close
+    db close
+    tv delete
+    file size test.db2
+  } [file size test.db]
+}
+
+do_test pager1-9.4.1 {
+  faultsim_delete_and_reopen
+  sqlite3 db2 test.db2
+  execsql {
+    PRAGMA page_size = 4096;
+    CREATE TABLE t1(a, b);
+    CREATE TABLE t2(a, b);
+  } db2
+  sqlite3_backup B db2 main db main
+  list [B step 10000] [B finish]
+} {SQLITE_DONE SQLITE_OK}
+do_test pager1-9.4.2 {
+  list [file size test.db2] [file size test.db]
+} {1024 0}
+db2 close
+
+#-------------------------------------------------------------------------
+# Test that regardless of the value returned by xSectorSize(), the
+# minimum effective sector-size is 512 and the maximum 65536 bytes.
+#
+testvfs tv -default 1
+foreach sectorsize {
+    16
+    32   64   128   256   512   1024   2048 
+    4096 8192 16384 32768 65536 131072 262144
+} {
+  tv sectorsize $sectorsize
+  tv devchar {}
+  set eff $sectorsize
+  if {$sectorsize < 512}   { set eff 512 }
+  if {$sectorsize > 65536} { set eff 65536 }
+
+  do_test pager1-10.$sectorsize.1 {
+    faultsim_delete_and_reopen
+    db func a_string a_string
+    execsql {
+      PRAGMA journal_mode = PERSIST;
+      PRAGMA page_size = 1024;
+      BEGIN;
+        CREATE TABLE t1(a, b);
+        CREATE TABLE t2(a, b);
+        CREATE TABLE t3(a, b);
+      COMMIT;
+    }
+    file size test.db-journal
+  } [expr $sectorsize > 65536 ? 65536 : ($sectorsize<32 ? 512 : $sectorsize)]
+
+  do_test pager1-10.$sectorsize.2 {
+    execsql { 
+      INSERT INTO t3 VALUES(a_string(300), a_string(300));
+      INSERT INTO t3 SELECT * FROM t3;        /*  2 */
+      INSERT INTO t3 SELECT * FROM t3;        /*  4 */
+      INSERT INTO t3 SELECT * FROM t3;        /*  8 */
+      INSERT INTO t3 SELECT * FROM t3;        /* 16 */
+      INSERT INTO t3 SELECT * FROM t3;        /* 32 */
+    }
+  } {}
+
+  do_test pager1-10.$sectorsize.3 {
+    db close
+    sqlite3 db test.db
+    execsql { 
+      PRAGMA cache_size = 10;
+      BEGIN;
+    }
+    recursive_select 32 t3 {db eval "INSERT INTO t2 VALUES(1, 2)"}
+    execsql {
+      COMMIT;
+      SELECT * FROM t2;
+    }
+  } {1 2}
+
+  do_test pager1-10.$sectorsize.4 {
+    execsql {
+      CREATE TABLE t6(a, b);
+      CREATE TABLE t7(a, b);
+      CREATE TABLE t5(a, b);
+      DROP TABLE t6;
+      DROP TABLE t7;
+    }
+    execsql {
+      BEGIN;
+        CREATE TABLE t6(a, b);
+    }
+    recursive_select 32 t3 {db eval "INSERT INTO t5 VALUES(1, 2)"}
+    execsql {
+      COMMIT;
+      SELECT * FROM t5;
+    }
+  } {1 2}
+  
+}
+db close
+
+tv sectorsize 4096
+do_test pager1.10.x.1 {
+  faultsim_delete_and_reopen
+  execsql {
+    PRAGMA auto_vacuum = none;
+    PRAGMA page_size = 1024;
+    CREATE TABLE t1(x);
+  }
+  for {set i 0} {$i<30} {incr i} {
+    execsql { INSERT INTO t1 VALUES(zeroblob(900)) }
+  }
+  file size test.db
+} {32768}
+do_test pager1.10.x.2 {
+  execsql {
+    CREATE TABLE t2(x);
+    DROP TABLE t2;
+  }
+  file size test.db
+} {33792}
+do_test pager1.10.x.3 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t2(x);
+  }
+  recursive_select 30 t1
+  execsql {
+    CREATE TABLE t3(x);
+    COMMIT;
+  }
+} {}
+
+db close
+tv delete
+
+testvfs tv -default 1
+faultsim_delete_and_reopen
+db func a_string a_string
+do_execsql_test pager1-11.1 {
+  PRAGMA journal_mode = DELETE;
+  PRAGMA cache_size = 10;
+  BEGIN;
+    CREATE TABLE zz(top PRIMARY KEY);
+    INSERT INTO zz VALUES(a_string(222));
+    INSERT INTO zz SELECT a_string((SELECT 222+max(rowid) FROM zz)) FROM zz;
+    INSERT INTO zz SELECT a_string((SELECT 222+max(rowid) FROM zz)) FROM zz;
+    INSERT INTO zz SELECT a_string((SELECT 222+max(rowid) FROM zz)) FROM zz;
+    INSERT INTO zz SELECT a_string((SELECT 222+max(rowid) FROM zz)) FROM zz;
+    INSERT INTO zz SELECT a_string((SELECT 222+max(rowid) FROM zz)) FROM zz;
+  COMMIT;
+  BEGIN;
+    UPDATE zz SET top = a_string(345);
+} {delete}
+
+proc lockout {method args} { return SQLITE_IOERR }
+tv script lockout
+tv filter {xWrite xTruncate xSync}
+do_catchsql_test pager1-11.2 { COMMIT } {1 {disk I/O error}}
+
+tv script {}
+do_test pager1-11.3 {
+  sqlite3 db2 test.db
+  execsql {
+    PRAGMA journal_mode = TRUNCATE;
+    PRAGMA integrity_check;
+  } db2
+} {truncate ok}
+do_test pager1-11.4 {
+  db2 close
+  file exists test.db-journal
+} {0}
+do_execsql_test pager1-11.5 { SELECT count(*) FROM zz } {32}
+db close
+tv delete
+  
+#-------------------------------------------------------------------------
+# Test "PRAGMA page_size"
+#
+testvfs tv -default 1
+tv sectorsize 1024
+foreach pagesize {
+    512   1024   2048 4096 8192 16384 32768 
+} {
+  faultsim_delete_and_reopen
+
+  # The sector-size (according to the VFS) is 1024 bytes. So if the
+  # page-size requested using "PRAGMA page_size" is greater than the
+  # compile time value of SQLITE_MAX_PAGE_SIZE, then the effective 
+  # page-size remains 1024 bytes.
+  #
+  set eff $pagesize
+  if {$eff > $::SQLITE_MAX_PAGE_SIZE} { set eff 1024 }
+
+  do_test pager1-12.$pagesize.1 {
+    sqlite3 db2 test.db
+    execsql "
+      PRAGMA page_size = $pagesize;
+      CREATE VIEW v AS SELECT * FROM sqlite_master;
+    " db2
+    file size test.db
+  } $eff
+  do_test pager1-12.$pagesize.2 {
+    sqlite3 db2 test.db
+    execsql { 
+      SELECT count(*) FROM v;
+      PRAGMA main.page_size;
+    } db2
+  } [list 1 $eff]
+  do_test pager1-12.$pagesize.3 {
+    execsql { 
+      SELECT count(*) FROM v;
+      PRAGMA main.page_size;
+    }
+  } [list 1 $eff]
+  db2 close
+}
+db close
+tv delete
+
+#-------------------------------------------------------------------------
+# Test specal "PRAGMA journal_mode=PERSIST" test cases.
+#
+# pager1-13.1.*: This tests a special case encountered in persistent 
+#                journal mode: If the journal associated with a transaction
+#                is smaller than the journal file (because a previous 
+#                transaction left a very large non-hot journal file in the
+#                file-system), then SQLite has to be careful that there is
+#                not a journal-header left over from a previous transaction
+#                immediately following the journal content just written.
+#                If there is, and the process crashes so that the journal
+#                becomes a hot-journal and must be rolled back by another
+#                process, there is a danger that the other process may roll
+#                back the aborted transaction, then continue copying data
+#                from an older transaction from the remainder of the journal.
+#                See the syncJournal() function for details.
+#
+# pager1-13.2.*: Same test as the previous. This time, throw an index into
+#                the mix to make the integrity-check more likely to catch
+#                errors.
+#
+testvfs tv -default 1
+tv script xSyncCb
+tv filter xSync
+proc xSyncCb {method filename args} {
+  set t [file tail $filename]
+  if {$t == "test.db"} faultsim_save
+  return SQLITE_OK
+}
+faultsim_delete_and_reopen
+db func a_string a_string
+
+# The UPDATE statement at the end of this test case creates a really big
+# journal. Since the cache-size is only 10 pages, the journal contains 
+# frequent journal headers.
+#
+do_execsql_test pager1-13.1.1 {
+  PRAGMA page_size = 1024;
+  PRAGMA journal_mode = PERSIST;
+  PRAGMA cache_size = 10;
+  BEGIN;
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b BLOB);
+    INSERT INTO t1 VALUES(NULL, a_string(400));
+    INSERT INTO t1 SELECT NULL, a_string(400) FROM t1;          /*   2 */
+    INSERT INTO t1 SELECT NULL, a_string(400) FROM t1;          /*   4 */
+    INSERT INTO t1 SELECT NULL, a_string(400) FROM t1;          /*   8 */
+    INSERT INTO t1 SELECT NULL, a_string(400) FROM t1;          /*  16 */
+    INSERT INTO t1 SELECT NULL, a_string(400) FROM t1;          /*  32 */
+    INSERT INTO t1 SELECT NULL, a_string(400) FROM t1;          /*  64 */
+    INSERT INTO t1 SELECT NULL, a_string(400) FROM t1;          /* 128 */
+  COMMIT;
+  UPDATE t1 SET b = a_string(400);
+} {persist}
+
+if {$::tcl_platform(platform)!="windows"} {
+# Run transactions of increasing sizes. Eventually, one (or more than one)
+# of these will write just enough content that one of the old headers created 
+# by the transaction in the block above lies immediately after the content
+# journalled by the current transaction.
+#
+for {set nUp 1} {$nUp<64} {incr nUp} {
+  do_execsql_test pager1-13.1.2.$nUp.1 { 
+    UPDATE t1 SET b = a_string(399) WHERE a <= $nUp
+  } {}
+  do_execsql_test pager1-13.1.2.$nUp.2 { PRAGMA integrity_check } {ok} 
+
+  # Try to access the snapshot of the file-system.
+  #
+  sqlite3 db2 sv_test.db
+  do_test pager1-13.1.2.$nUp.3 {
+    execsql { SELECT sum(length(b)) FROM t1 } db2
+  } [expr {128*400 - ($nUp-1)}]
+  do_test pager1-13.1.2.$nUp.4 {
+    execsql { PRAGMA integrity_check } db2
+  } {ok}
+  db2 close
+}
+}
+
+if {$::tcl_platform(platform)!="windows"} {
+# Same test as above. But this time with an index on the table.
+#
+do_execsql_test pager1-13.2.1 {
+  CREATE INDEX i1 ON t1(b);
+  UPDATE t1 SET b = a_string(400);
+} {}
+for {set nUp 1} {$nUp<64} {incr nUp} {
+  do_execsql_test pager1-13.2.2.$nUp.1 { 
+    UPDATE t1 SET b = a_string(399) WHERE a <= $nUp
+  } {}
+  do_execsql_test pager1-13.2.2.$nUp.2 { PRAGMA integrity_check } {ok} 
+  sqlite3 db2 sv_test.db
+  do_test pager1-13.2.2.$nUp.3 {
+    execsql { SELECT sum(length(b)) FROM t1 } db2
+  } [expr {128*400 - ($nUp-1)}]
+  do_test pager1-13.2.2.$nUp.4 {
+    execsql { PRAGMA integrity_check } db2
+  } {ok}
+  db2 close
+}
+}
+
+db close
+tv delete
+
+#-------------------------------------------------------------------------
+# Test specal "PRAGMA journal_mode=OFF" test cases.
+#
+# Do not run these tests for SQLITE_ENABLE_ZIPVFS builds. Such builds
+# cause the pager to enter the error state if a statement transaction
+# cannot be rolled back due to a prior "PRAGMA journal_mode=OFF". Which
+# causes these tests to fail.
+#
+if {[info commands zip_register]==""} {
+faultsim_delete_and_reopen
+do_execsql_test pager1-14.1.1 {
+  PRAGMA journal_mode = OFF;
+  CREATE TABLE t1(a, b);
+  BEGIN;
+    INSERT INTO t1 VALUES(1, 2);
+  COMMIT;
+  SELECT * FROM t1;
+} {off 1 2}
+do_catchsql_test pager1-14.1.2 {
+  BEGIN;
+    INSERT INTO t1 VALUES(3, 4);
+  ROLLBACK;
+} {0 {}}
+do_execsql_test pager1-14.1.3 {
+  SELECT * FROM t1;
+} {1 2}
+do_catchsql_test pager1-14.1.4 {
+  BEGIN;
+    INSERT INTO t1(rowid, a, b) SELECT a+3, b, b FROM t1;
+    INSERT INTO t1(rowid, a, b) SELECT a+3, b, b FROM t1;
+} {1 {UNIQUE constraint failed: t1.rowid}}
+do_execsql_test pager1-14.1.5 {
+  COMMIT;
+}
+do_execsql_test pager1-14.1.6 {
+  SELECT * FROM t1;
+} {1 2 2 2}
+}
+
+#-------------------------------------------------------------------------
+# Test opening and closing the pager sub-system with different values
+# for the sqlite3_vfs.szOsFile variable.
+#
+faultsim_delete_and_reopen
+do_execsql_test pager1-15.0 {
+  CREATE TABLE tx(y, z);
+  INSERT INTO tx VALUES('Ayutthaya', 'Beijing');
+  INSERT INTO tx VALUES('London', 'Tokyo');
+} {}
+db close
+for {set i 0} {$i<513} {incr i 3} {
+  testvfs tv -default 1 -szosfile $i
+  sqlite3 db test.db
+  do_execsql_test pager1-15.$i.1 {
+    SELECT * FROM tx;
+  } {Ayutthaya Beijing London Tokyo}
+  db close
+  tv delete
+}
+
+#-------------------------------------------------------------------------
+# Check that it is not possible to open a database file if the full path
+# to the associated journal file will be longer than sqlite3_vfs.mxPathname.
+#
+testvfs tv -default 1
+tv script xOpenCb
+tv filter xOpen
+proc xOpenCb {method filename args} {
+  set ::file_len [string length $filename]
+}
+sqlite3 db test.db
+db close
+tv delete
+
+for {set ii [expr $::file_len-5]} {$ii < [expr $::file_len+20]} {incr ii} {
+  testvfs tv -default 1 -mxpathname $ii
+
+  # The length of the full path to file "test.db-journal" is ($::file_len+8).
+  # If the configured sqlite3_vfs.mxPathname value greater than or equal to
+  # this, then the file can be opened. Otherwise, it cannot.
+  #
+  if {$ii >= [expr $::file_len+8]} {
+    set res {0 {}}
+  } else {
+    set res {1 {unable to open database file}}
+  }
+
+  do_test pager1-16.1.$ii {
+    list [catch { sqlite3 db test.db } msg] $msg
+  } $res
+
+  catch {db close}
+  tv delete
+}
+
+
+#-------------------------------------------------------------------------
+# Test the pagers response to the b-tree layer requesting illegal page 
+# numbers:
+#
+#   + The locking page,
+#   + Page 0,
+#   + A page with a page number greater than (2^31-1).
+#
+# These tests will not work if SQLITE_DIRECT_OVERFLOW_READ is defined. In
+# that case IO errors are sometimes reported instead of SQLITE_CORRUPT.
+#
+ifcapable !direct_read {
+do_test pager1-18.1 {
+  faultsim_delete_and_reopen
+  db func a_string a_string
+  execsql { 
+    PRAGMA page_size = 1024;
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(a_string(500), a_string(200));
+    INSERT INTO t1 SELECT a_string(500), a_string(200) FROM t1;
+    INSERT INTO t1 SELECT a_string(500), a_string(200) FROM t1;
+    INSERT INTO t1 SELECT a_string(500), a_string(200) FROM t1;
+    INSERT INTO t1 SELECT a_string(500), a_string(200) FROM t1;
+    INSERT INTO t1 SELECT a_string(500), a_string(200) FROM t1;
+    INSERT INTO t1 SELECT a_string(500), a_string(200) FROM t1;
+    INSERT INTO t1 SELECT a_string(500), a_string(200) FROM t1;
+  }
+} {}
+do_test pager1-18.2 {
+  set root [db one "SELECT rootpage FROM sqlite_master"]
+  set lockingpage [expr (0x10000/1024) + 1]
+  sqlite3_db_config db DEFENSIVE 0
+  execsql {
+    PRAGMA writable_schema = 1;
+    UPDATE sqlite_master SET rootpage = $lockingpage;
+  }
+  sqlite3 db2 test.db
+  catchsql { SELECT count(*) FROM t1 } db2
+} {1 {database disk image is malformed}}
+db2 close
+do_test pager1-18.3.1 {
+  execsql {
+    CREATE TABLE t2(x);
+    INSERT INTO t2 VALUES(a_string(5000));
+  }
+  set pgno [expr ([file size test.db] / 1024)-2]
+  hexio_write test.db [expr ($pgno-1)*1024] 00000000
+  sqlite3 db2 test.db
+  # even though x is malformed, because typeof() does
+  # not load the content of x, the error is not noticed.
+  catchsql { SELECT typeof(x) FROM t2 } db2
+} {0 text}
+do_test pager1-18.3.2 {
+  # in this case, the value of x is loaded and so the error is
+  # detected
+  catchsql { SELECT length(x||'') FROM t2 } db2
+} {1 {database disk image is malformed}}
+db2 close
+do_test pager1-18.3.3 {
+  execsql {
+    DELETE FROM t2;
+    INSERT INTO t2 VALUES(randomblob(5000));
+  }
+  set pgno [expr ([file size test.db] / 1024)-2]
+  hexio_write test.db [expr ($pgno-1)*1024] 00000000
+  sqlite3 db2 test.db
+  # even though x is malformed, because length() and typeof() do
+  # not load the content of x, the error is not noticed.
+  catchsql { SELECT length(x), typeof(x) FROM t2 } db2
+} {0 {5000 blob}}
+do_test pager1-18.3.4 {
+  # in this case, the value of x is loaded and so the error is
+  # detected
+  catchsql { SELECT length(x||'') FROM t2 } db2
+} {1 {database disk image is malformed}}
+db2 close
+do_test pager1-18.4 {
+  hexio_write test.db [expr ($pgno-1)*1024] 90000000
+  sqlite3 db2 test.db
+  catchsql { SELECT length(x||'') FROM t2 } db2
+} {1 {database disk image is malformed}}
+db2 close
+extra_schema_checks 0
+ifcapable altertable {
+  do_test pager1-18.5 {
+    sqlite3 db ""
+      sqlite3_db_config db DEFENSIVE 0
+      execsql {
+        CREATE TABLE t1(a, b);
+        CREATE TABLE t2(a, b);
+        PRAGMA writable_schema = 1;
+        UPDATE sqlite_master SET rootpage=5 WHERE tbl_name = 't1';
+        PRAGMA writable_schema = 0;
+        ALTER TABLE t1 RENAME TO x1;
+      }
+    catchsql { SELECT * FROM x1 }
+  } {1 {database disk image is malformed}}
+  db close
+}
+extra_schema_checks 1
+
+do_test pager1-18.6 {
+  faultsim_delete_and_reopen
+  db func a_string a_string
+  execsql {
+    PRAGMA page_size = 1024;
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(a_string(800));
+    INSERT INTO t1 VALUES(a_string(800));
+  }
+
+  set root [db one "SELECT rootpage FROM sqlite_master"]
+  db close
+
+  hexio_write test.db [expr ($root-1)*1024 + 8] 00000000
+  sqlite3 db test.db
+  catchsql { SELECT length(x) FROM t1 }
+} {1 {database disk image is malformed}}
+}
+
+do_test pager1-19.1 {
+  sqlite3 db ""
+  db func a_string a_string
+  execsql {
+    PRAGMA page_size = 512;
+    PRAGMA auto_vacuum = 1;
+    CREATE TABLE t1(aa, ab, ac, ad, ae, af, ag, ah, ai, aj, ak, al, am, an,
+                    ba, bb, bc, bd, be, bf, bg, bh, bi, bj, bk, bl, bm, bn,
+                    ca, cb, cc, cd, ce, cf, cg, ch, ci, cj, ck, cl, cm, cn,
+                    da, db, dc, dd, de, df, dg, dh, di, dj, dk, dl, dm, dn,
+                    ea, eb, ec, ed, ee, ef, eg, eh, ei, ej, ek, el, em, en,
+                    fa, fb, fc, fd, fe, ff, fg, fh, fi, fj, fk, fl, fm, fn,
+                    ga, gb, gc, gd, ge, gf, gg, gh, gi, gj, gk, gl, gm, gn,
+                    ha, hb, hc, hd, he, hf, hg, hh, hi, hj, hk, hl, hm, hn,
+                    ia, ib, ic, id, ie, if, ig, ih, ii, ij, ik, il, im, ix,
+                    ja, jb, jc, jd, je, jf, jg, jh, ji, jj, jk, jl, jm, jn,
+                    ka, kb, kc, kd, ke, kf, kg, kh, ki, kj, kk, kl, km, kn,
+                    la, lb, lc, ld, le, lf, lg, lh, li, lj, lk, ll, lm, ln,
+                    ma, mb, mc, md, me, mf, mg, mh, mi, mj, mk, ml, mm, mn
+    );
+    CREATE TABLE t2(aa, ab, ac, ad, ae, af, ag, ah, ai, aj, ak, al, am, an,
+                    ba, bb, bc, bd, be, bf, bg, bh, bi, bj, bk, bl, bm, bn,
+                    ca, cb, cc, cd, ce, cf, cg, ch, ci, cj, ck, cl, cm, cn,
+                    da, db, dc, dd, de, df, dg, dh, di, dj, dk, dl, dm, dn,
+                    ea, eb, ec, ed, ee, ef, eg, eh, ei, ej, ek, el, em, en,
+                    fa, fb, fc, fd, fe, ff, fg, fh, fi, fj, fk, fl, fm, fn,
+                    ga, gb, gc, gd, ge, gf, gg, gh, gi, gj, gk, gl, gm, gn,
+                    ha, hb, hc, hd, he, hf, hg, hh, hi, hj, hk, hl, hm, hn,
+                    ia, ib, ic, id, ie, if, ig, ih, ii, ij, ik, il, im, ix,
+                    ja, jb, jc, jd, je, jf, jg, jh, ji, jj, jk, jl, jm, jn,
+                    ka, kb, kc, kd, ke, kf, kg, kh, ki, kj, kk, kl, km, kn,
+                    la, lb, lc, ld, le, lf, lg, lh, li, lj, lk, ll, lm, ln,
+                    ma, mb, mc, md, me, mf, mg, mh, mi, mj, mk, ml, mm, mn
+    );
+    INSERT INTO t1(aa) VALUES( a_string(100000) );
+    INSERT INTO t2(aa) VALUES( a_string(100000) );
+    VACUUM;
+  }
+} {}
+
+#-------------------------------------------------------------------------
+# Test a couple of special cases that come up while committing 
+# transactions:
+#
+#   pager1-20.1.*: Committing an in-memory database transaction when the 
+#                  database has not been modified at all.
+#
+#   pager1-20.2.*: As above, but with a normal db in exclusive-locking mode.
+#
+#   pager1-20.3.*: Committing a transaction in WAL mode where the database has
+#                  been modified, but all dirty pages have been flushed to 
+#                  disk before the commit.
+#
+do_test pager1-20.1.1 {
+  catch {db close}
+  sqlite3 db :memory:
+  execsql {
+    CREATE TABLE one(two, three);
+    INSERT INTO one VALUES('a', 'b');
+  }
+} {}
+do_test pager1-20.1.2 {
+  execsql {
+    BEGIN EXCLUSIVE;
+    COMMIT;
+  }
+} {}
+
+do_test pager1-20.2.1 {
+  faultsim_delete_and_reopen
+  execsql {
+    PRAGMA locking_mode = exclusive;
+    PRAGMA journal_mode = persist;
+    CREATE TABLE one(two, three);
+    INSERT INTO one VALUES('a', 'b');
+  }
+} {exclusive persist}
+do_test pager1-20.2.2 {
+  execsql {
+    BEGIN EXCLUSIVE;
+    COMMIT;
+  }
+} {}
+
+ifcapable wal {
+  do_test pager1-20.3.1 {
+    faultsim_delete_and_reopen
+    db func a_string a_string
+    execsql {
+      PRAGMA cache_size = 10;
+      PRAGMA journal_mode = wal;
+      BEGIN;
+        CREATE TABLE t1(x);
+        CREATE TABLE t2(y);
+        INSERT INTO t1 VALUES(a_string(800));
+        INSERT INTO t1 SELECT a_string(800) FROM t1;         /*   2 */
+        INSERT INTO t1 SELECT a_string(800) FROM t1;         /*   4 */
+        INSERT INTO t1 SELECT a_string(800) FROM t1;         /*   8 */
+        INSERT INTO t1 SELECT a_string(800) FROM t1;         /*  16 */
+        INSERT INTO t1 SELECT a_string(800) FROM t1;         /*  32 */
+      COMMIT;
+    }
+  } {wal}
+  do_test pager1-20.3.2 {
+    execsql {
+      BEGIN;
+      INSERT INTO t2 VALUES('xxxx');
+    }
+    recursive_select 32 t1
+    execsql COMMIT
+  } {}
+}
+
+#-------------------------------------------------------------------------
+# Test that a WAL database may not be opened if:
+#
+#   pager1-21.1.*: The VFS has an iVersion less than 2, or
+#   pager1-21.2.*: The VFS does not provide xShmXXX() methods.
+#
+ifcapable wal {
+  do_test pager1-21.0 {
+    faultsim_delete_and_reopen
+    execsql {
+      PRAGMA journal_mode = WAL;
+      CREATE TABLE ko(c DEFAULT 'abc', b DEFAULT 'def');
+      INSERT INTO ko DEFAULT VALUES;
+    }
+  } {wal}
+  do_test pager1-21.1 {
+    testvfs tv -noshm 1
+    sqlite3 db2 test.db -vfs tv
+    catchsql { SELECT * FROM ko } db2
+  } {1 {unable to open database file}}
+  db2 close
+  tv delete
+  do_test pager1-21.2 {
+    testvfs tv -iversion 1
+    sqlite3 db2 test.db -vfs tv
+    catchsql { SELECT * FROM ko } db2
+  } {1 {unable to open database file}}
+  db2 close
+  tv delete
+}
+
+#-------------------------------------------------------------------------
+# Test that a "PRAGMA wal_checkpoint":
+#
+#   pager1-22.1.*: is a no-op on a non-WAL db, and
+#   pager1-22.2.*: does not cause xSync calls with a synchronous=off db.
+#
+ifcapable wal {
+  do_test pager1-22.1.1 {
+    faultsim_delete_and_reopen
+    execsql {
+      CREATE TABLE ko(c DEFAULT 'abc', b DEFAULT 'def');
+      INSERT INTO ko DEFAULT VALUES;
+    }
+    execsql { PRAGMA wal_checkpoint }
+  } {0 -1 -1}
+  do_test pager1-22.2.1 {
+    testvfs tv -default 1
+    tv filter xSync
+    tv script xSyncCb
+    proc xSyncCb {args} {incr ::synccount}
+    set ::synccount 0
+    sqlite3 db test.db
+    execsql {
+      PRAGMA synchronous = off;
+      PRAGMA journal_mode = WAL;
+      INSERT INTO ko DEFAULT VALUES;
+    }
+    execsql { PRAGMA wal_checkpoint }
+    set synccount
+  } {0}
+  db close
+  tv delete
+}
+
+#-------------------------------------------------------------------------
+# Tests for changing journal mode.
+#
+#   pager1-23.1.*: Test that when changing from PERSIST to DELETE mode,
+#                  the journal file is deleted.
+#
+#   pager1-23.2.*: Same test as above, but while a shared lock is held
+#                  on the database file.
+#
+#   pager1-23.3.*: Same test as above, but while a reserved lock is held
+#                  on the database file.
+#
+#   pager1-23.4.*: And, for fun, while holding an exclusive lock.
+#
+#   pager1-23.5.*: Try to set various different journal modes with an
+#                  in-memory database (only MEMORY and OFF should work).
+#
+#   pager1-23.6.*: Try to set locking_mode=normal on an in-memory database
+#                  (doesn't work - in-memory databases always use
+#                  locking_mode=exclusive).
+#
+do_test pager1-23.1.1 {
+  faultsim_delete_and_reopen
+  execsql {
+    PRAGMA journal_mode = PERSIST;
+    CREATE TABLE t1(a, b);
+  }
+  file exists test.db-journal
+} {1}
+do_test pager1-23.1.2 {
+  execsql { PRAGMA journal_mode = DELETE }
+  file exists test.db-journal
+} {0}
+
+do_test pager1-23.2.1 {
+  execsql {
+    PRAGMA journal_mode = PERSIST;
+    INSERT INTO t1 VALUES('Canberra', 'ACT');
+  }
+  db eval { SELECT * FROM t1 } {
+    db eval { PRAGMA journal_mode = DELETE }
+  }
+  execsql { PRAGMA journal_mode }
+} {delete}
+do_test pager1-23.2.2 {
+  file exists test.db-journal
+} {0}
+
+do_test pager1-23.3.1 {
+  execsql {
+    PRAGMA journal_mode = PERSIST;
+    INSERT INTO t1 VALUES('Darwin', 'NT');
+    BEGIN IMMEDIATE;
+  }
+  db eval { PRAGMA journal_mode = DELETE }
+  execsql { PRAGMA journal_mode }
+} {delete}
+do_test pager1-23.3.2 {
+  file exists test.db-journal
+} {0}
+do_test pager1-23.3.3 {
+  execsql COMMIT
+} {}
+
+do_test pager1-23.4.1 {
+  execsql {
+    PRAGMA journal_mode = PERSIST;
+    INSERT INTO t1 VALUES('Adelaide', 'SA');
+    BEGIN EXCLUSIVE;
+  }
+  db eval { PRAGMA journal_mode = DELETE }
+  execsql { PRAGMA journal_mode }
+} {delete}
+do_test pager1-23.4.2 {
+  file exists test.db-journal
+} {0}
+do_test pager1-23.4.3 {
+  execsql COMMIT
+} {}
+
+do_test pager1-23.5.1 {
+  faultsim_delete_and_reopen
+  sqlite3 db :memory:
+} {}
+foreach {tn mode possible} {
+  2  off      1
+  3  memory   1
+  4  persist  0
+  5  delete   0
+  6  wal      0
+  7  truncate 0
+} {
+  do_test pager1-23.5.$tn.1 {
+    execsql "PRAGMA journal_mode = off"
+    execsql "PRAGMA journal_mode = $mode"
+  } [if $possible {list $mode} {list off}]
+  do_test pager1-23.5.$tn.2 {
+    execsql "PRAGMA journal_mode = memory"
+    execsql "PRAGMA journal_mode = $mode"
+  } [if $possible {list $mode} {list memory}]
+}
+do_test pager1-23.6.1 {
+  execsql {PRAGMA locking_mode = normal}
+} {exclusive}
+do_test pager1-23.6.2 {
+  execsql {PRAGMA locking_mode = exclusive}
+} {exclusive}
+do_test pager1-23.6.3 {
+  execsql {PRAGMA locking_mode}
+} {exclusive}
+do_test pager1-23.6.4 {
+  execsql {PRAGMA main.locking_mode}
+} {exclusive}
+
+#-------------------------------------------------------------------------
+#
+do_test pager1-24.1.1 {
+  faultsim_delete_and_reopen
+  db func a_string a_string
+  execsql {
+    PRAGMA cache_size = 10;
+    PRAGMA auto_vacuum = FULL;
+    CREATE TABLE x1(x, y, z, PRIMARY KEY(y, z));
+    CREATE TABLE x2(x, y, z, PRIMARY KEY(y, z));
+    INSERT INTO x2 VALUES(a_string(400), a_string(500), a_string(600));
+    INSERT INTO x2 SELECT a_string(600), a_string(400), a_string(500) FROM x2;
+    INSERT INTO x2 SELECT a_string(500), a_string(600), a_string(400) FROM x2;
+    INSERT INTO x2 SELECT a_string(400), a_string(500), a_string(600) FROM x2;
+    INSERT INTO x2 SELECT a_string(600), a_string(400), a_string(500) FROM x2;
+    INSERT INTO x2 SELECT a_string(500), a_string(600), a_string(400) FROM x2;
+    INSERT INTO x2 SELECT a_string(400), a_string(500), a_string(600) FROM x2;
+    INSERT INTO x1 SELECT * FROM x2;
+  }
+} {}
+do_test pager1-24.1.2 {
+  execsql {
+    BEGIN;
+      DELETE FROM x1 WHERE rowid<32;
+  }
+  recursive_select 64 x2
+} {}
+do_test pager1-24.1.3 {
+  execsql { 
+      UPDATE x1 SET z = a_string(300) WHERE rowid>40;
+    COMMIT;
+    PRAGMA integrity_check;
+    SELECT count(*) FROM x1;
+  }
+} {ok 33}
+
+do_test pager1-24.1.4 {
+  execsql {
+    DELETE FROM x1;
+    INSERT INTO x1 SELECT * FROM x2;
+    BEGIN;
+      DELETE FROM x1 WHERE rowid<32;
+      UPDATE x1 SET z = a_string(299) WHERE rowid>40;
+  }
+  recursive_select 64 x2 {db eval COMMIT}
+  execsql {
+    PRAGMA integrity_check;
+    SELECT count(*) FROM x1;
+  }
+} {ok 33}
+
+do_test pager1-24.1.5 {
+  execsql {
+    DELETE FROM x1;
+    INSERT INTO x1 SELECT * FROM x2;
+  }
+  recursive_select 64 x2 { db eval {CREATE TABLE x3(x, y, z)} }
+  execsql { SELECT * FROM x3 }
+} {}
+
+#-------------------------------------------------------------------------
+#
+do_test pager1-25-1 {
+  faultsim_delete_and_reopen
+  execsql {
+    BEGIN;
+      SAVEPOINT abc;
+        CREATE TABLE t1(a, b);
+      ROLLBACK TO abc;
+    COMMIT;
+  }
+  db close
+} {}
+do_test pager1-25-2 {
+  faultsim_delete_and_reopen
+  execsql {
+    SAVEPOINT abc;
+      CREATE TABLE t1(a, b);
+    ROLLBACK TO abc;
+    COMMIT;
+  }
+  db close
+} {}
+
+#-------------------------------------------------------------------------
+# Sector-size tests.
+#
+do_test pager1-26.1 {
+  testvfs tv -default 1
+  tv sectorsize 4096
+  faultsim_delete_and_reopen
+  db func a_string a_string
+  execsql {
+    PRAGMA page_size = 512;
+    CREATE TABLE tbl(a PRIMARY KEY, b UNIQUE);
+    BEGIN;
+      INSERT INTO tbl VALUES(a_string(25), a_string(600));
+      INSERT INTO tbl SELECT a_string(25), a_string(600) FROM tbl;
+      INSERT INTO tbl SELECT a_string(25), a_string(600) FROM tbl;
+      INSERT INTO tbl SELECT a_string(25), a_string(600) FROM tbl;
+      INSERT INTO tbl SELECT a_string(25), a_string(600) FROM tbl;
+      INSERT INTO tbl SELECT a_string(25), a_string(600) FROM tbl;
+      INSERT INTO tbl SELECT a_string(25), a_string(600) FROM tbl;
+      INSERT INTO tbl SELECT a_string(25), a_string(600) FROM tbl;
+    COMMIT;
+  }
+} {}
+do_execsql_test pager1-26.1 {
+  UPDATE tbl SET b = a_string(550);
+} {}
+db close
+tv delete
+
+#-------------------------------------------------------------------------
+#
+do_test pager1.27.1 {
+  faultsim_delete_and_reopen
+  sqlite3_pager_refcounts db
+  execsql {
+    BEGIN;
+      CREATE TABLE t1(a, b);
+  }
+  sqlite3_pager_refcounts db
+  execsql COMMIT
+} {}
+
+#-------------------------------------------------------------------------
+# Test that attempting to open a write-transaction with 
+# locking_mode=exclusive in WAL mode fails if there are other clients on 
+# the same database.
+#
+catch { db close }
+ifcapable wal {
+  do_multiclient_test tn {
+    do_test pager1-28.$tn.1 {
+      sql1 { 
+        PRAGMA journal_mode = WAL;
+        CREATE TABLE t1(a, b);
+        INSERT INTO t1 VALUES('a', 'b');
+      }
+    } {wal}
+    do_test pager1-28.$tn.2 { sql2 { SELECT * FROM t1 } } {a b}
+
+    do_test pager1-28.$tn.3 { sql1 { PRAGMA locking_mode=exclusive } } {exclusive}
+    do_test pager1-28.$tn.4 { 
+      csql1 { BEGIN; INSERT INTO t1 VALUES('c', 'd'); }
+    } {1 {database is locked}}
+    code2 { db2 close ; sqlite3 db2 test.db }
+    do_test pager1-28.$tn.4 { 
+      sql1 { INSERT INTO t1 VALUES('c', 'd'); COMMIT }
+    } {}
+  }
+}
+
+#-------------------------------------------------------------------------
+# Normally, when changing from journal_mode=PERSIST to DELETE the pager
+# attempts to delete the journal file. However, if it cannot obtain a
+# RESERVED lock on the database file, this step is skipped.
+#
+do_multiclient_test tn {
+  do_test pager1-28.$tn.1 {
+    sql1 { 
+      PRAGMA journal_mode = PERSIST;
+      CREATE TABLE t1(a, b);
+      INSERT INTO t1 VALUES('a', 'b');
+    }
+  } {persist}
+  do_test pager1-28.$tn.2 { file exists test.db-journal } 1
+  do_test pager1-28.$tn.3 { sql1 { PRAGMA journal_mode = DELETE } } delete
+  do_test pager1-28.$tn.4 { file exists test.db-journal } 0
+
+  do_test pager1-28.$tn.5 {
+    sql1 { 
+      PRAGMA journal_mode = PERSIST;
+      INSERT INTO t1 VALUES('c', 'd');
+    }
+  } {persist}
+  do_test pager1-28.$tn.6 { file exists test.db-journal } 1
+  do_test pager1-28.$tn.7 {
+    sql2 { BEGIN; INSERT INTO t1 VALUES('e', 'f'); }
+  } {}
+  do_test pager1-28.$tn.8  { file exists test.db-journal } 1
+  do_test pager1-28.$tn.9  { sql1 { PRAGMA journal_mode = DELETE } } delete
+  do_test pager1-28.$tn.10 { file exists test.db-journal } 1
+
+  do_test pager1-28.$tn.11 { sql2 COMMIT } {}
+  do_test pager1-28.$tn.12 { file exists test.db-journal } 0
+
+  do_test pager1-28-$tn.13 {
+    code1 { set channel [db incrblob -readonly t1 a 2] }
+    sql1 {
+      PRAGMA journal_mode = PERSIST;
+      INSERT INTO t1 VALUES('g', 'h');
+    }
+  } {persist}
+  do_test pager1-28.$tn.14 { file exists test.db-journal } 1
+  do_test pager1-28.$tn.15 {
+    sql2 { BEGIN; INSERT INTO t1 VALUES('e', 'f'); }
+  } {}
+  do_test pager1-28.$tn.16 { sql1 { PRAGMA journal_mode = DELETE } } delete
+  do_test pager1-28.$tn.17 { file exists test.db-journal } 1
+
+  do_test pager1-28.$tn.17 { csql2 { COMMIT } } {1 {database is locked}}
+  do_test pager1-28-$tn.18 { code1 { read $channel } } c
+  do_test pager1-28-$tn.19 { code1 { close $channel } } {}
+  do_test pager1-28.$tn.20 { sql2 { COMMIT } } {}
+}
+
+do_test pager1-29.1 {
+  faultsim_delete_and_reopen
+  execsql {
+    PRAGMA page_size = 1024;
+    PRAGMA auto_vacuum = full;
+    PRAGMA locking_mode=exclusive;
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, 2);
+  }
+  file size test.db
+} [expr 1024*3]
+if {[nonzero_reserved_bytes]} {
+  # VACUUM with size changes is not possible with the codec.
+  do_test pager1-29.2 {
+    catchsql {
+      PRAGMA page_size = 4096;
+      VACUUM;
+    }
+  } {1 {attempt to write a readonly database}}
+} else {
+  do_test pager1-29.2 {
+    execsql {
+      PRAGMA page_size = 4096;
+      VACUUM;
+    }
+    file size test.db
+  } [expr 4096*3]
+}
+
+#-------------------------------------------------------------------------
+# Test that if an empty database file (size 0 bytes) is opened in 
+# exclusive-locking mode, any journal file is deleted from the file-system
+# without being rolled back. And that the RESERVED lock obtained while
+# doing this is not released.
+#
+do_test pager1-30.1 {
+  db close
+  delete_file test.db
+  delete_file test.db-journal
+  set fd [open test.db-journal w]
+  seek $fd [expr 512+1032*2]
+  puts -nonewline $fd x
+  close $fd
+
+  sqlite3 db test.db
+  execsql {
+    PRAGMA locking_mode=EXCLUSIVE;
+    SELECT count(*) FROM sqlite_master;
+    PRAGMA lock_status;
+  }
+} {exclusive 0 main reserved temp closed}
+
+#-------------------------------------------------------------------------
+# Test that if the "page-size" field in a journal-header is 0, the journal
+# file can still be rolled back. This is required for backward compatibility -
+# versions of SQLite prior to 3.5.8 always set this field to zero.
+#
+if {$tcl_platform(platform)=="unix"} {
+do_test pager1-31.1 {
+  faultsim_delete_and_reopen
+  execsql {
+    PRAGMA cache_size = 10;
+    PRAGMA page_size = 1024;
+    CREATE TABLE t1(x, y, UNIQUE(x, y));
+    INSERT INTO t1 VALUES(randomblob(1500), randomblob(1500));
+    INSERT INTO t1 SELECT randomblob(1500), randomblob(1500) FROM t1;
+    INSERT INTO t1 SELECT randomblob(1500), randomblob(1500) FROM t1;
+    INSERT INTO t1 SELECT randomblob(1500), randomblob(1500) FROM t1;
+    INSERT INTO t1 SELECT randomblob(1500), randomblob(1500) FROM t1;
+    INSERT INTO t1 SELECT randomblob(1500), randomblob(1500) FROM t1;
+    INSERT INTO t1 SELECT randomblob(1500), randomblob(1500) FROM t1;
+    INSERT INTO t1 SELECT randomblob(1500), randomblob(1500) FROM t1;
+    INSERT INTO t1 SELECT randomblob(1500), randomblob(1500) FROM t1;
+    INSERT INTO t1 SELECT randomblob(1500), randomblob(1500) FROM t1;
+    INSERT INTO t1 SELECT randomblob(1500), randomblob(1500) FROM t1;
+    BEGIN;
+      UPDATE t1 SET y = randomblob(1499);
+  }
+  copy_file test.db test.db2
+  copy_file test.db-journal test.db2-journal
+  
+  hexio_write test.db2-journal 24 00000000
+  sqlite3 db2 test.db2
+  execsql { PRAGMA integrity_check } db2
+} {ok}
+}
+
+#-------------------------------------------------------------------------
+# Test that a database file can be "pre-hinted" to a certain size and that
+# subsequent spilling of the pager cache does not result in the database
+# file being shrunk.
+#
+catch {db close}
+forcedelete test.db
+
+do_test pager1-32.1 {
+  sqlite3 db test.db
+  execsql {
+    CREATE TABLE t1(x, y);
+  }
+  db close
+  sqlite3 db test.db
+  execsql {
+    BEGIN;
+    INSERT INTO t1 VALUES(1, randomblob(10000));
+  }
+  file_control_chunksize_test db main 1024
+  file_control_sizehint_test db main 20971520; # 20MB
+  execsql {
+    PRAGMA cache_size = 10;
+    INSERT INTO t1 VALUES(1, randomblob(10000));
+    INSERT INTO t1 VALUES(2, randomblob(10000));
+    INSERT INTO t1 SELECT x+2, randomblob(10000) from t1;
+    INSERT INTO t1 SELECT x+4, randomblob(10000) from t1;
+    INSERT INTO t1 SELECT x+8, randomblob(10000) from t1;
+    INSERT INTO t1 SELECT x+16, randomblob(10000) from t1;
+    SELECT count(*) FROM t1;
+    COMMIT;
+  }
+  db close
+  file size test.db
+} {20971520}
+
+# Cleanup 20MB file left by the previous test.
+forcedelete test.db
+
+#-------------------------------------------------------------------------
+# Test that if a transaction is committed in journal_mode=DELETE mode,
+# and the call to unlink() returns an ENOENT error, the COMMIT does not
+# succeed.
+#
+if {$::tcl_platform(platform)=="unix"} {
+  do_test pager1-33.1 {
+    sqlite3 db test.db
+    execsql {
+      CREATE TABLE t1(x);
+      INSERT INTO t1 VALUES('one');
+      INSERT INTO t1 VALUES('two');
+      BEGIN;
+        INSERT INTO t1 VALUES('three');
+        INSERT INTO t1 VALUES('four');
+    }
+    forcedelete bak-journal
+    file rename test.db-journal bak-journal
+
+    catchsql COMMIT
+  } {1 {disk I/O error}}
+
+  do_test pager1-33.2 {
+    file rename bak-journal test.db-journal
+    execsql { SELECT * FROM t1 }
+  } {one two}
+}
+
+#-------------------------------------------------------------------------
+# Test that appending pages to the database file then moving those pages
+# to the free-list before the transaction is committed does not cause
+# an error.
+#
+foreach {tn pragma strsize} {
+  1 { PRAGMA mmap_size = 0 } 2400
+  2 { }                       2400
+  3 { PRAGMA mmap_size = 0 } 4400
+  4 { }                       4400
+} {
+  reset_db
+  db func a_string a_string
+  db eval $pragma
+  do_execsql_test 34.$tn.1 {
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, 2);
+  }
+  do_execsql_test 34.$tn.2 {
+    BEGIN;
+    INSERT INTO t1 VALUES(2, a_string($strsize));
+    DELETE FROM t1 WHERE oid=2;
+    COMMIT;
+    PRAGMA integrity_check;
+  } {ok}
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_test 35 {
+  sqlite3 db test.db
+
+  execsql {
+    CREATE TABLE t1(x, y);
+    PRAGMA journal_mode = WAL;
+    INSERT INTO t1 VALUES(1, 2);
+  }
+
+  execsql {
+    BEGIN;
+      CREATE TABLE t2(a, b);
+  }
+
+  hexio_write test.db-shm [expr 16*1024] [string repeat 0055 8192]
+  catchsql ROLLBACK
+} {0 {}}
+
+do_multiclient_test tn {
+  sql1 {
+    PRAGMA auto_vacuum = 0;
+    CREATE TABLE t1(x, y);
+    INSERT INTO t1 VALUES(1, 2);
+  }
+
+  do_test 36.$tn.1 { 
+    sql2 { PRAGMA max_page_count = 2 }
+    list [catch { sql2 { CREATE TABLE t2(x) } } msg] $msg
+  } {1 {database or disk is full}}
+
+  sql1 { PRAGMA checkpoint_fullfsync = 1 }
+  sql1 { CREATE TABLE t2(x) }
+
+  do_test 36.$tn.2 { 
+    sql2 { INSERT INTO t2 VALUES('xyz') }
+    list [catch { sql2 { CREATE TABLE t3(x) } } msg] $msg
+  } {1 {database or disk is full}}
+}
+
+forcedelete test1 test2
+foreach {tn uri} {
+  1   {file:?mode=memory&cache=shared}
+  2   {file:one?mode=memory&cache=shared}
+  3   {file:test1?cache=shared}
+  4   {file:test2?another=parameter&yet=anotherone}
+} {
+  do_test 37.$tn {
+    catch { db close }
+    sqlite3_shutdown
+    sqlite3_config_uri 1
+    sqlite3 db $uri
+
+    db eval {
+      CREATE TABLE t1(x);
+      INSERT INTO t1 VALUES(1);
+      SELECT * FROM t1;
+    }
+  } {1}
+
+  do_execsql_test 37.$tn.2 {
+    VACUUM;
+    SELECT * FROM t1;
+  } {1}
+
+  db close
+  sqlite3_shutdown
+  sqlite3_config_uri 0
+}
+
+do_test 38.1 {
+  catch { db close }
+  forcedelete test.db
+  set fd [open test.db w]
+  puts $fd "hello world"
+  close $fd
+  sqlite3 db test.db
+  catchsql { CREATE TABLE t1(x) }
+} {1 {file is not a database}}
+do_test 38.2 {
+  catch { db close }
+  forcedelete test.db
+} {}
+
+do_test 39.1 {
+  sqlite3 db test.db
+  execsql {
+    PRAGMA auto_vacuum = 1;
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES('xxx');
+    INSERT INTO t1 VALUES('two');
+    INSERT INTO t1 VALUES(randomblob(400));
+    INSERT INTO t1 VALUES(randomblob(400));
+    INSERT INTO t1 VALUES(randomblob(400));
+    INSERT INTO t1 VALUES(randomblob(400));
+    BEGIN;
+    UPDATE t1 SET x = 'one' WHERE rowid=1;
+  }
+  set ::stmt [sqlite3_prepare db "SELECT * FROM t1 ORDER BY rowid" -1 dummy]
+  sqlite3_step $::stmt
+  sqlite3_column_text $::stmt 0
+} {one}
+do_test 39.2 {
+  execsql { CREATE TABLE t2(x) }
+  sqlite3_step $::stmt
+  sqlite3_column_text $::stmt 0
+} {two}
+do_test 39.3 {
+  sqlite3_finalize $::stmt
+  execsql COMMIT
+} {}
+
+do_execsql_test 39.4 {
+  PRAGMA auto_vacuum = 2;
+  CREATE TABLE t3(x);
+  CREATE TABLE t4(x);
+
+  DROP TABLE t2;
+  DROP TABLE t3;
+  DROP TABLE t4;
+}
+do_test 39.5 {
+  db close
+  sqlite3 db test.db
+  execsql {
+    PRAGMA cache_size = 1;
+    PRAGMA incremental_vacuum;
+    PRAGMA integrity_check;
+  }
+} {ok}
+
+do_test 40.1 {
+  reset_db
+  execsql {
+    PRAGMA auto_vacuum = 1;
+    CREATE TABLE t1(x PRIMARY KEY);
+    INSERT INTO t1 VALUES(randomblob(1200));
+    PRAGMA page_count;
+  }
+} {6}
+do_test 40.2 {
+  execsql {
+    INSERT INTO t1 VALUES(randomblob(1200));
+    INSERT INTO t1 VALUES(randomblob(1200));
+    INSERT INTO t1 VALUES(randomblob(1200));
+  }
+} {}
+do_test 40.3 {
+  db close
+  sqlite3 db test.db
+  execsql {
+    PRAGMA cache_size = 1;
+    CREATE TABLE t2(x);
+    PRAGMA integrity_check;
+  }
+} {ok}
+
+do_test 41.1 {
+  reset_db
+  execsql {
+    CREATE TABLE t1(x PRIMARY KEY);
+    INSERT INTO t1 VALUES(randomblob(200));
+    INSERT INTO t1 SELECT randomblob(200) FROM t1;
+    INSERT INTO t1 SELECT randomblob(200) FROM t1;
+    INSERT INTO t1 SELECT randomblob(200) FROM t1;
+    INSERT INTO t1 SELECT randomblob(200) FROM t1;
+    INSERT INTO t1 SELECT randomblob(200) FROM t1;
+    INSERT INTO t1 SELECT randomblob(200) FROM t1;
+  }
+} {}
+do_test 41.2 {
+  testvfs tv -default 1
+  tv sectorsize 16384;
+  tv devchar [list]
+  db close
+  sqlite3 db test.db
+  execsql {
+    PRAGMA cache_size = 1;
+    DELETE FROM t1 WHERE rowid%4;
+    PRAGMA integrity_check;
+  }
+} {ok}
+db close
+tv delete
+
+set pending_prev [sqlite3_test_control_pending_byte 0x1000000]
+do_test 42.1 {
+  reset_db
+  execsql {
+    CREATE TABLE t1(x, y);
+    INSERT INTO t1 VALUES(randomblob(200), randomblob(200));
+    INSERT INTO t1 SELECT randomblob(200), randomblob(200) FROM t1;
+    INSERT INTO t1 SELECT randomblob(200), randomblob(200) FROM t1;
+    INSERT INTO t1 SELECT randomblob(200), randomblob(200) FROM t1;
+    INSERT INTO t1 SELECT randomblob(200), randomblob(200) FROM t1;
+    INSERT INTO t1 SELECT randomblob(200), randomblob(200) FROM t1;
+    INSERT INTO t1 SELECT randomblob(200), randomblob(200) FROM t1;
+    INSERT INTO t1 SELECT randomblob(200), randomblob(200) FROM t1;
+    INSERT INTO t1 SELECT randomblob(200), randomblob(200) FROM t1;
+    INSERT INTO t1 SELECT randomblob(200), randomblob(200) FROM t1;
+  }
+  db close
+  sqlite3_test_control_pending_byte 0x0010000
+  sqlite3 db test.db
+  db eval { PRAGMA mmap_size = 0 }
+  catchsql { SELECT sum(length(y)) FROM t1 }
+} {1 {database disk image is malformed}}
+do_test 42.2 {
+  reset_db
+  execsql {
+    CREATE TABLE t1(x, y);
+    INSERT INTO t1 VALUES(randomblob(200), randomblob(200));
+    INSERT INTO t1 SELECT randomblob(200), randomblob(200) FROM t1;
+    INSERT INTO t1 SELECT randomblob(200), randomblob(200) FROM t1;
+    INSERT INTO t1 SELECT randomblob(200), randomblob(200) FROM t1;
+    INSERT INTO t1 SELECT randomblob(200), randomblob(200) FROM t1;
+    INSERT INTO t1 SELECT randomblob(200), randomblob(200) FROM t1;
+    INSERT INTO t1 SELECT randomblob(200), randomblob(200) FROM t1;
+    INSERT INTO t1 SELECT randomblob(200), randomblob(200) FROM t1;
+    INSERT INTO t1 SELECT randomblob(200), randomblob(200) FROM t1;
+  }
+  db close
+
+  testvfs tv -default 1
+  tv sectorsize 16384;
+  tv devchar [list]
+  sqlite3 db test.db -vfs tv
+  execsql { UPDATE t1 SET x = randomblob(200) }
+} {}
+db close
+tv delete
+sqlite3_test_control_pending_byte $pending_prev
+
+do_test 43.1 {
+  reset_db
+  execsql {
+    CREATE TABLE t1(x, y);
+    INSERT INTO t1 VALUES(1, 2);
+    CREATE TABLE t2(x, y);
+    INSERT INTO t2 VALUES(1, 2);
+    CREATE TABLE t3(x, y);
+    INSERT INTO t3 VALUES(1, 2);
+  }
+  db close
+  sqlite3 db test.db
+
+  db eval { PRAGMA mmap_size = 0 }
+  db eval { SELECT * FROM t1 }
+  sqlite3_db_status db CACHE_MISS 0
+} {0 2 0}
+
+do_test 43.2 {
+  db eval { SELECT * FROM t2 }
+  sqlite3_db_status db CACHE_MISS 1
+} {0 3 0}
+
+do_test 43.3 {
+  db eval { SELECT * FROM t3 }
+  sqlite3_db_status db CACHE_MISS 0
+} {0 1 0}
+
+# 2022-03-01 Forum post https://sqlite.org/forum/forumpost/3b9e894312
+# Ensure that max_page_count gets adjusted upward, if needed, on a
+# ROLLBACK.
+#
+db close
+sqlite3 db :memory:
+do_execsql_test 44.1 {
+  PRAGMA page_size=4096;
+  PRAGMA auto_vacuum=FULL;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b ANY);
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<50)
+  INSERT INTO t1(a,b) SELECT x, zeroblob(1000) FROM c;
+  CREATE TABLE t2 AS SELECT * FROM t1;
+  PRAGMA page_count;
+} {31}
+do_execsql_test 44.2 {
+  BEGIN;
+  DROP TABLE t2;
+  PRAGMA incremental_vacuum=50;
+  PRAGMA page_count;
+  PRAGMA max_page_count=2;
+} {16 16}
+do_execsql_test 44.3 {
+  ROLLBACK;
+  PRAGMA page_count;
+  PRAGMA max_page_count;
+} {31 31}
+
+finish_test
diff --git a/test/pager2.test b/test/pager2.test
new file mode 100644
index 0000000000000000000000000000000000000000..ef05cc76a29f499c012a60d8b94f836f42f5dfaa
--- /dev/null
+++ b/test/pager2.test
@@ -0,0 +1,171 @@
+# 2010 June 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+source $testdir/malloc_common.tcl
+
+set otn 0
+testvfs tv -default 1
+foreach code [list {
+  set s 512
+} {
+  set s 1024
+  set sql { PRAGMA journal_mode = memory }
+} {
+  set s 1024
+  set sql { 
+    PRAGMA journal_mode = memory;
+    PRAGMA locking_mode = exclusive;
+  }
+} {
+  set s 2048
+  tv devchar safe_append
+} {
+  set s 4096
+} {
+  set s 4096
+  set sql { PRAGMA journal_mode = WAL }
+} {
+  set s 4096
+  set sql { PRAGMA auto_vacuum = 1 }
+} {
+  set s 8192
+  set sql { PRAGMA synchronous = off }
+}] {
+
+  incr otn
+  set sql ""
+  tv devchar {}
+  eval $code
+  tv sectorsize $s
+  
+  do_test pager2-1.$otn.0 {
+    faultsim_delete_and_reopen
+    execsql $sql
+    execsql {
+      PRAGMA cache_size = 10;
+      CREATE TABLE t1(i INTEGER PRIMARY KEY, j blob);
+    }
+  } {}
+
+  set tn 0
+  set lowpoint 0
+  foreach x {
+    100 x 0 100
+  x
+    70 22 96 59 96 50 22 56 21 16 37 64 43 40  0 38 22 38 55  0  6   
+    43 62 32 93 54 18 13 29 45 66 29 25 61 31 53 82 75 25 96 86 10 69   
+     2 29  6 60 80 95 42 82 85 50 68 96 90 39 78 69 87 97 48 74 65 43   
+  x
+    86 34 26 50 41 85 58 44 89 22  6 51 45 46 58 32 97  6  1 12 32  2   
+    69 39 48 71 33 31  5 58 90 43 24 54 12  9 18 57  4 38 91 42 27 45   
+    50 38 56 29 10  0 26 37 83  1 78 15 47 30 75 62 46 29 68  5 30  4   
+    27 96 33 95 79 75 56 10 29 70 32 75 52 88  5 36 50 57 46 63 88 65   
+  x
+    44 95 64 20 24 35 69 61 61  2 35 92 42 46 23 98 78  1 38 72 79 35   
+    94 37 13 59  5 93 27 58 80 75 58  7 67 13 10 76 84  4  8 70 81 45   
+     8 41 98  5 60 26 92 29 91 90  2 62 40  4  5 22 80 15 83 76 52 88   
+    29  5 68 73 72  7 54 17 89 32 81 94 51 28 53 71  8 42 54 59 70 79   
+  x
+  } {
+    incr tn
+    set now [db one {SELECT count(i) FROM t1}]
+    if {$x == "x"} {
+      execsql { COMMIT ; BEGIN }
+      set lowpoint $now
+      do_test pager2.1.$otn.$tn { 
+        sqlite3 db2 test.db
+        execsql {
+          SELECT COALESCE(max(i), 0) FROM t1;
+          PRAGMA integrity_check;
+        } 
+      } [list $lowpoint ok]
+      db2 close
+    } else {
+      if {$now > $x } {
+        if { $x>=$lowpoint } {
+          execsql "ROLLBACK TO sp_$x"
+        } else {
+          execsql "DELETE FROM t1 WHERE i>$x"
+          set lowpoint $x
+        }
+      } elseif {$now < $x} {
+        for {set k $now} {$k < $x} {incr k} {
+          execsql "SAVEPOINT sp_$k"
+          execsql { INSERT INTO t1(j) VALUES(randomblob(1500)) }
+        }
+      }
+      do_execsql_test pager2.1.$otn.$tn { 
+        SELECT COALESCE(max(i), 0) FROM t1;
+        PRAGMA integrity_check;
+      } [list $x ok]
+    }
+  }
+}
+db close
+tv delete
+
+
+#-------------------------------------------------------------------------
+# pager2-2.1: Test a ROLLBACK with journal_mode=off.
+# pager2-2.2: Test shrinking the database (auto-vacuum) with 
+#             journal_mode=off
+#
+do_test pager2-2.1 {
+  faultsim_delete_and_reopen
+  execsql {
+    CREATE TABLE t1(a, b);
+    PRAGMA journal_mode = off;
+    BEGIN;
+      INSERT INTO t1 VALUES(1, 2);
+    ROLLBACK;
+    SELECT * FROM t1;
+  }
+} {off}
+do_test pager2-2.2 {
+  faultsim_delete_and_reopen
+  execsql {
+    PRAGMA auto_vacuum = incremental;
+    PRAGMA page_size = 1024;
+    PRAGMA journal_mode = off;
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(zeroblob(5000), zeroblob(5000));
+    DELETE FROM t1;
+    PRAGMA incremental_vacuum;
+  }
+  file size test.db
+} {3072}
+
+ifcapable shared_cache {
+  #-------------------------------------------------------------------------
+  # Test that shared in-memory databases seem to work.
+  #
+  db close
+  do_test pager2-3.1 {
+    forcedelete test.db
+    sqlite3_shutdown
+    sqlite3_config_uri 1
+  
+    sqlite3 db1 {file:test.db?mode=memory&cache=shared}
+    sqlite3 db2 {file:test.db?mode=memory&cache=shared}
+    sqlite3 db3 test.db
+  
+    db1 eval { CREATE TABLE t1(a, b) }
+    db2 eval { INSERT INTO t1 VALUES(1, 2) }
+    list [catch { db3 eval { INSERT INTO t1 VALUES(3, 4) } } msg] $msg
+  } {1 {no such table: t1}}
+  db1 close
+}
+
+finish_test
diff --git a/test/pager3.test b/test/pager3.test
new file mode 100644
index 0000000000000000000000000000000000000000..e815f2788b36c7c29acd2c63b5bea37a6cc1252c
--- /dev/null
+++ b/test/pager3.test
@@ -0,0 +1,37 @@
+# 2010 June 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+source $testdir/malloc_common.tcl
+source $testdir/wal_common.tcl
+
+if {[atomic_batch_write test.db]} {
+  finish_test
+  return
+}
+
+foreach {tn sql res j} {
+  1 "PRAGMA journal_mode = DELETE"  delete        0
+  2 "CREATE TABLE t1(a, b)"         {}            0
+  3 "PRAGMA locking_mode=EXCLUSIVE" {exclusive}   0
+  4 "INSERT INTO t1 VALUES(1, 2)"   {}            1
+  5 "PRAGMA locking_mode=NORMAL"    {normal}      1
+  6 "SELECT * FROM t1"              {1 2}         0
+} {
+  do_execsql_test pager3-1.$tn.1 $sql $res
+  do_test         pager3-1.$tn.2 { file exists test.db-journal } $j
+}
+
+
+finish_test
diff --git a/test/pager4.test b/test/pager4.test
new file mode 100644
index 0000000000000000000000000000000000000000..2cf73d1b1752293f4cdf4d2038e041f5186a7ec3
--- /dev/null
+++ b/test/pager4.test
@@ -0,0 +1,99 @@
+# 2013-12-06
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests for the SQLITE_READONLY_DBMOVED error condition: the database file
+# is unlinked or renamed out from under SQLite.
+#
+
+if {$tcl_platform(platform)!="unix"} return
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+if {[permutation]=="inmemory_journal"} {
+  finish_test
+  return
+}
+
+# Create a database file for testing
+#
+do_execsql_test pager4-1.1 {
+  CREATE TABLE t1(a,b,c);
+  INSERT INTO t1 VALUES(673,'stone','philips');
+  SELECT * FROM t1;
+} {673 stone philips}
+
+# After renaming the database file while it is open, one can still
+# read from the database, but writing returns a READONLY error.
+#
+file delete -force test-xyz.db
+file rename test.db test-xyz.db
+do_catchsql_test pager4-1.2 {
+  SELECT * FROM t1;
+} {0 {673 stone philips}}
+do_catchsql_test pager4-1.3 {
+  UPDATE t1 SET a=537;
+} {1 {attempt to write a readonly database}}
+
+# Creating a different database file with the same name of the original
+# is detected and still leaves the database read-only.
+#
+sqlite3 db2 test.db
+db2 eval {CREATE TABLE t2(x,y,z)}
+do_catchsql_test pager4-1.4 {
+  UPDATE t1 SET a=948;
+} {1 {attempt to write a readonly database}}
+
+# Changing the name back clears the READONLY error
+#
+db2 close
+file delete -force test.db
+file rename test-xyz.db test.db
+do_catchsql_test pager4-1.5 {
+  SELECT * FROM t1;
+} {0 {673 stone philips}}
+do_catchsql_test pager4-1.6 {
+  UPDATE t1 SET a=537;
+  SELECT * FROM t1;
+} {0 {537 stone philips}}
+
+# We can write to a renamed database if journal_mode=OFF or
+# journal_mode=MEMORY.
+#
+file rename test.db test-xyz.db
+do_catchsql_test pager4-1.7 {
+  PRAGMA journal_mode=OFF;
+  UPDATE t1 SET a=107;
+  SELECT * FROM t1;
+} {0 {off 107 stone philips}}
+do_catchsql_test pager4-1.8 {
+  PRAGMA journal_mode=MEMORY;
+  UPDATE t1 SET b='magpie';
+  SELECT * FROM t1;
+} {0 {memory 107 magpie philips}}
+
+# Any other journal mode gives a READONLY error
+#
+do_catchsql_test pager4-1.9 {
+  PRAGMA journal_mode=DELETE;
+  UPDATE t1 SET c='jaguar';
+} {1 {attempt to write a readonly database}}
+do_catchsql_test pager4-1.10 {
+  PRAGMA journal_mode=TRUNCATE;
+  UPDATE t1 SET c='jaguar';
+} {1 {attempt to write a readonly database}}
+do_catchsql_test pager4-1.11 {
+  PRAGMA journal_mode=PERSIST;
+  UPDATE t1 SET c='jaguar';
+} {1 {attempt to write a readonly database}}
+
+
+finish_test
diff --git a/test/pagerfault.test b/test/pagerfault.test
new file mode 100644
index 0000000000000000000000000000000000000000..3006dad7cc16b53d2b43dd224305bf7e6eae785e
--- /dev/null
+++ b/test/pagerfault.test
@@ -0,0 +1,1553 @@
+# 2010 June 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+source $testdir/malloc_common.tcl
+
+if {[permutation] == "inmemory_journal"} {
+  finish_test
+  return
+}
+
+if {$::tcl_platform(platform)=="windows"} {
+  finish_test
+  return
+}
+
+set a_string_counter 1
+proc a_string {n} {
+  global a_string_counter
+  incr a_string_counter
+  string range [string repeat "${a_string_counter}." $n] 1 $n
+}
+db func a_string a_string
+
+#-------------------------------------------------------------------------
+# Test fault-injection while rolling back a hot-journal file.
+#
+do_test pagerfault-1-pre1 {
+  execsql {
+    PRAGMA journal_mode = DELETE;
+    PRAGMA cache_size = 10;
+    CREATE TABLE t1(a UNIQUE, b UNIQUE);
+    INSERT INTO t1 VALUES(a_string(200), a_string(300));
+    INSERT INTO t1 SELECT a_string(200), a_string(300) FROM t1;
+    INSERT INTO t1 SELECT a_string(200), a_string(300) FROM t1;
+    BEGIN;
+      INSERT INTO t1 SELECT a_string(201), a_string(301) FROM t1;
+      INSERT INTO t1 SELECT a_string(202), a_string(302) FROM t1;
+      INSERT INTO t1 SELECT a_string(203), a_string(303) FROM t1;
+      INSERT INTO t1 SELECT a_string(204), a_string(304) FROM t1;
+  }
+  faultsim_save_and_close
+} {}
+do_faultsim_test pagerfault-1 -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { SELECT count(*) FROM t1 }
+} -test {
+  faultsim_test_result {0 4} 
+  faultsim_integrity_check
+  if {[db one { SELECT count(*) FROM t1 }] != 4} {
+    error "Database content appears incorrect"
+  }
+}
+
+#-------------------------------------------------------------------------
+# Test fault-injection while rolling back a hot-journal file with a 
+# page-size different from the current value stored on page 1 of the
+# database file.
+#
+do_test pagerfault-2-pre1 {
+  testvfs tv -default 1
+  tv filter xSync
+  tv script xSyncCb
+  proc xSyncCb {filename args} {
+    if {[string match *journal filename]==0} faultsim_save
+  }
+  faultsim_delete_and_reopen
+  execsql {
+    PRAGMA page_size = 4096;
+    BEGIN;
+      CREATE TABLE abc(a, b, c);
+      INSERT INTO abc VALUES('o', 't', 't'); 
+      INSERT INTO abc VALUES('f', 'f', 's'); 
+      INSERT INTO abc SELECT * FROM abc; -- 4
+      INSERT INTO abc SELECT * FROM abc; -- 8
+      INSERT INTO abc SELECT * FROM abc; -- 16
+      INSERT INTO abc SELECT * FROM abc; -- 32
+      INSERT INTO abc SELECT * FROM abc; -- 64
+      INSERT INTO abc SELECT * FROM abc; -- 128
+      INSERT INTO abc SELECT * FROM abc; -- 256
+    COMMIT;
+    PRAGMA page_size = 1024;
+    VACUUM;
+  }
+  db close
+  tv delete
+} {}
+do_faultsim_test pagerfault-2 -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { SELECT * FROM abc }
+} -test {
+  set answer [split [string repeat "ottffs" 128] ""]
+  faultsim_test_result [list 0 $answer]
+  faultsim_integrity_check
+  set res [db eval { SELECT * FROM abc }]
+  if {$res != $answer} { error "Database content appears incorrect ($res)" }
+} 
+
+#-------------------------------------------------------------------------
+# Test fault-injection while rolling back hot-journals that were created
+# as part of a multi-file transaction.
+#
+do_test pagerfault-3-pre1 {
+  testvfs tstvfs -default 1
+  tstvfs filter xDelete
+  tstvfs script xDeleteCallback
+
+  proc xDeleteCallback {method file args} {
+    set file [file tail $file]
+    if { [string match *mj* $file] } { faultsim_save }
+  }
+
+  faultsim_delete_and_reopen
+  db func a_string a_string
+
+  execsql {
+    ATTACH 'test.db2' AS aux;
+    PRAGMA journal_mode = DELETE;
+    PRAGMA main.cache_size = 10;
+    PRAGMA aux.cache_size = 10;
+
+    CREATE TABLE t1(a UNIQUE, b UNIQUE);
+    CREATE TABLE aux.t2(a UNIQUE, b UNIQUE);
+    INSERT INTO t1 VALUES(a_string(200), a_string(300));
+    INSERT INTO t1 SELECT a_string(200), a_string(300) FROM t1;
+    INSERT INTO t1 SELECT a_string(200), a_string(300) FROM t1;
+    INSERT INTO t2 SELECT * FROM t1;
+
+    BEGIN;
+      INSERT INTO t1 SELECT a_string(201), a_string(301) FROM t1;
+      INSERT INTO t1 SELECT a_string(202), a_string(302) FROM t1;
+      INSERT INTO t1 SELECT a_string(203), a_string(303) FROM t1;
+      INSERT INTO t1 SELECT a_string(204), a_string(304) FROM t1;
+      REPLACE INTO t2 SELECT * FROM t1;
+    COMMIT;
+  }
+
+  db close
+  tstvfs delete
+} {}
+do_faultsim_test pagerfault-3 -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { 
+    ATTACH 'test.db2' AS aux;
+    SELECT count(*) FROM t2;
+    SELECT count(*) FROM t1;
+  }
+} -test {
+  faultsim_test_result {0 {4 4}} {1 {unable to open database: test.db2}}
+  faultsim_integrity_check
+  catchsql { ATTACH 'test.db2' AS aux }
+  if {[db one { SELECT count(*) FROM t1 }] != 4
+   || [db one { SELECT count(*) FROM t2 }] != 4
+  } {
+    error "Database content appears incorrect"
+  }
+}
+
+#-------------------------------------------------------------------------
+# Test fault-injection as part of a vanilla, no-transaction, INSERT
+# statement.
+#
+do_faultsim_test pagerfault-4 -prep {
+  faultsim_delete_and_reopen
+} -body {
+  execsql { 
+    CREATE TABLE x(y);
+    INSERT INTO x VALUES('z');
+    SELECT * FROM x;
+  }
+} -test {
+  faultsim_test_result {0 z}
+  faultsim_integrity_check
+}
+
+#-------------------------------------------------------------------------
+# Test fault-injection as part of a commit when using journal_mode=PERSIST.
+# Three different cases:
+#
+#    pagerfault-5.1: With no journal_size_limit configured.
+#    pagerfault-5.2: With a journal_size_limit configured.
+#    pagerfault-5.4: Multi-file transaction. One connection has a 
+#                    journal_size_limit of 0, the other has no limit.
+#
+do_test pagerfault-5-pre1 {
+  faultsim_delete_and_reopen
+  db func a_string a_string
+  execsql {
+    CREATE TABLE t1(a UNIQUE, b UNIQUE);
+    INSERT INTO t1 VALUES(a_string(200), a_string(300));
+    INSERT INTO t1 SELECT a_string(200), a_string(300) FROM t1;
+    INSERT INTO t1 SELECT a_string(200), a_string(300) FROM t1;
+  }
+  faultsim_save_and_close
+} {}
+do_faultsim_test pagerfault-5.1 -prep {
+  faultsim_restore_and_reopen
+  db func a_string a_string
+  execsql { PRAGMA journal_mode = PERSIST }
+} -body {
+  execsql { INSERT INTO t1 SELECT a_string(200), a_string(300) FROM t1 }
+} -test {
+  faultsim_test_result {0 {}}
+  faultsim_integrity_check
+}
+do_faultsim_test pagerfault-5.2 -prep {
+  faultsim_restore_and_reopen
+  db func a_string a_string
+  execsql { 
+    PRAGMA journal_mode = PERSIST;
+    PRAGMA journal_size_limit = 2048;
+  }
+} -body {
+  execsql { INSERT INTO t1 SELECT a_string(200), a_string(300) FROM t1 }
+} -test {
+  faultsim_test_result {0 {}}
+  faultsim_integrity_check
+}
+do_faultsim_test pagerfault-5.3 -faults oom-transient -prep {
+  faultsim_restore_and_reopen
+  db func a_string a_string
+  forcedelete test2.db test2.db-journal test2.db-wal
+  execsql { 
+    PRAGMA journal_mode = PERSIST;
+    ATTACH 'test2.db' AS aux;
+    PRAGMA aux.journal_mode = PERSIST;
+    PRAGMA aux.journal_size_limit = 0;
+  }
+} -body {
+  execsql {
+    BEGIN;
+      INSERT INTO t1 SELECT a_string(200), a_string(300) FROM t1;
+      CREATE TABLE aux.t2 AS SELECT * FROM t1;
+    COMMIT;
+  }
+} -test {
+  faultsim_test_result {0 {}}
+
+  catchsql { COMMIT }
+  catchsql { ROLLBACK }
+
+  faultsim_integrity_check
+  set res ""
+  set rc [catch { set res [db one { PRAGMA aux.integrity_check }] }]
+  if {$rc!=0 || $res != "ok"} {error "integrity-check problem:$rc $res"}
+}
+
+#-------------------------------------------------------------------------
+# Test fault-injection as part of a commit when using 
+# journal_mode=TRUNCATE.
+#
+do_test pagerfault-6-pre1 {
+  faultsim_delete_and_reopen
+  db func a_string a_string
+  execsql {
+    CREATE TABLE t1(a UNIQUE, b UNIQUE);
+    INSERT INTO t1 VALUES(a_string(200), a_string(300));
+  }
+  faultsim_save_and_close
+} {}
+
+do_faultsim_test pagerfault-6.1 -prep {
+  faultsim_restore_and_reopen
+  db func a_string a_string
+  execsql { PRAGMA journal_mode = TRUNCATE }
+} -body {
+  execsql { INSERT INTO t1 SELECT a_string(200), a_string(300) FROM t1 }
+  execsql { INSERT INTO t1 SELECT a_string(200), a_string(300) FROM t1 }
+} -test {
+  faultsim_test_result {0 {}}
+  faultsim_integrity_check
+}
+
+# The unix vfs xAccess() method considers a file zero bytes in size to
+# "not exist". This proc overrides that behaviour so that a zero length
+# file is considered to exist.
+#
+proc xAccess {method filename op args} {
+  if {$op != "SQLITE_ACCESS_EXISTS"} { return "" }
+  return [file exists $filename]
+}
+do_faultsim_test pagerfault-6.2 -faults cantopen-* -prep {
+  shmfault filter xAccess
+  shmfault script xAccess
+
+  faultsim_restore_and_reopen
+  db func a_string a_string
+  execsql { PRAGMA journal_mode = TRUNCATE }
+} -body {
+  execsql { INSERT INTO t1 SELECT a_string(200), a_string(300) FROM t1 }
+  execsql { INSERT INTO t1 SELECT a_string(200), a_string(300) FROM t1 }
+} -test {
+  faultsim_test_result {0 {}}
+  faultsim_integrity_check
+}
+
+# The following was an attempt to get a bitvec malloc to fail. Didn't work.
+#
+# do_test pagerfault-6-pre1 {
+#   faultsim_delete_and_reopen
+#   execsql {
+#     CREATE TABLE t1(x, y, UNIQUE(x, y));
+#     INSERT INTO t1 VALUES(1, randomblob(1501));
+#     INSERT INTO t1 VALUES(2, randomblob(1502));
+#     INSERT INTO t1 VALUES(3, randomblob(1503));
+#     INSERT INTO t1 VALUES(4, randomblob(1504));
+#     INSERT INTO t1 
+#       SELECT x, randomblob(1500+oid+(SELECT max(oid) FROM t1)) FROM t1;
+#     INSERT INTO t1 
+#       SELECT x, randomblob(1500+oid+(SELECT max(oid) FROM t1)) FROM t1;
+#     INSERT INTO t1 
+#       SELECT x, randomblob(1500+oid+(SELECT max(oid) FROM t1)) FROM t1;
+#     INSERT INTO t1 
+#       SELECT x, randomblob(1500+oid+(SELECT max(oid) FROM t1)) FROM t1;
+#   }
+#   faultsim_save_and_close
+# } {}
+# do_faultsim_test pagerfault-6 -prep {
+#   faultsim_restore_and_reopen
+# } -body {
+#   execsql { 
+#     BEGIN;
+#       UPDATE t1 SET x=x+4 WHERE x=1;
+#       SAVEPOINT one;
+#         UPDATE t1 SET x=x+4 WHERE x=2;
+#         SAVEPOINT three;
+#           UPDATE t1 SET x=x+4 WHERE x=3;
+#           SAVEPOINT four;
+#             UPDATE t1 SET x=x+4 WHERE x=4;
+#         RELEASE three;
+#     COMMIT;
+#     SELECT DISTINCT x FROM t1;
+#   }
+# } -test {
+#   faultsim_test_result {0 {5 6 7 8}}
+#   faultsim_integrity_check
+# }
+#
+
+# This is designed to provoke a special case in the pager code:
+#
+# If an error (specifically, a FULL or IOERR error) occurs while writing a
+# dirty page to the file-system in order to free up memory, the pager enters
+# the "error state". An IO error causes SQLite to roll back the current
+# transaction (exiting the error state). A FULL error, however, may only
+# rollback the current statement.
+#
+# This block tests that nothing goes wrong if a FULL error occurs while
+# writing a dirty page out to free memory from within a statement that has
+# opened a statement transaction.
+#
+do_test pagerfault-7-pre1 {
+  faultsim_delete_and_reopen
+  execsql {
+    CREATE TABLE t2(a INTEGER PRIMARY KEY, b);
+    BEGIN;
+      INSERT INTO t2 VALUES(NULL, randomblob(1500));
+      INSERT INTO t2 VALUES(NULL, randomblob(1500));
+      INSERT INTO t2 SELECT NULL, randomblob(1500) FROM t2;    --  4
+      INSERT INTO t2 SELECT NULL, randomblob(1500) FROM t2;    --  8
+      INSERT INTO t2 SELECT NULL, randomblob(1500) FROM t2;    -- 16
+      INSERT INTO t2 SELECT NULL, randomblob(1500) FROM t2;    -- 32
+      INSERT INTO t2 SELECT NULL, randomblob(1500) FROM t2;    -- 64
+    COMMIT;
+    CREATE TABLE t1(a PRIMARY KEY, b);
+    INSERT INTO t1 SELECT * FROM t2;
+    DROP TABLE t2;
+  }
+  faultsim_save_and_close
+} {}
+do_faultsim_test pagerfault-7 -prep {
+  faultsim_restore_and_reopen
+  execsql { 
+    PRAGMA cache_size = 10;
+    BEGIN;
+      UPDATE t1 SET b = randomblob(1500);
+  }
+} -body {
+  execsql { UPDATE t1 SET a = 65, b = randomblob(1500) WHERE (a+1)>200 }
+  execsql COMMIT
+} -test {
+  faultsim_test_result {0 {}}
+  faultsim_integrity_check
+}
+
+do_test pagerfault-8-pre1 {
+  faultsim_delete_and_reopen
+  execsql {
+    PRAGMA auto_vacuum = 1;
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+    BEGIN;
+      INSERT INTO t1 VALUES(NULL, randomblob(1500));
+      INSERT INTO t1 VALUES(NULL, randomblob(1500));
+      INSERT INTO t1 SELECT NULL, randomblob(1500) FROM t1;    --  4
+      INSERT INTO t1 SELECT NULL, randomblob(1500) FROM t1;    --  8
+      INSERT INTO t1 SELECT NULL, randomblob(1500) FROM t1;    -- 16
+      INSERT INTO t1 SELECT NULL, randomblob(1500) FROM t1;    -- 32
+      INSERT INTO t1 SELECT NULL, randomblob(1500) FROM t1;    -- 64
+    COMMIT;
+  }
+  faultsim_save_and_close
+  set filesize [file size test.db]
+  set {} {}
+} {}
+do_test pagerfault-8-pre2 {
+  faultsim_restore_and_reopen
+  execsql { DELETE FROM t1 WHERE a>32 }
+  expr {[file size test.db] < $filesize}
+} {1}
+do_faultsim_test pagerfault-8 -prep {
+  faultsim_restore_and_reopen
+  execsql { 
+    BEGIN;
+    DELETE FROM t1 WHERE a>32;
+  }
+} -body {
+  execsql COMMIT
+} -test {
+  faultsim_test_result {0 {}}
+  faultsim_integrity_check
+}
+
+#-------------------------------------------------------------------------
+# This test case is specially designed so that during a savepoint 
+# rollback, a new cache entry must be allocated (see comments surrounding
+# the call to sqlite3PagerAcquire() from within pager_playback_one_page()
+# for details). Test the effects of injecting an OOM at this point.
+#
+do_test pagerfault-9-pre1 {
+  faultsim_delete_and_reopen
+  execsql {
+    PRAGMA auto_vacuum = incremental;
+    CREATE TABLE t1(x);
+    CREATE TABLE t2(y);
+    CREATE TABLE t3(z);
+
+    INSERT INTO t1 VALUES(randomblob(900));
+    INSERT INTO t1 VALUES(randomblob(900));
+    DELETE FROM t1;
+  }
+  faultsim_save_and_close
+} {}
+do_faultsim_test pagerfault-9.1 -prep {
+  faultsim_restore_and_reopen
+  execsql { 
+    BEGIN;
+      INSERT INTO t1 VALUES(randomblob(900));
+      INSERT INTO t1 VALUES(randomblob(900));
+      DROP TABLE t3;
+      DROP TABLE t2;
+      SAVEPOINT abc;
+        PRAGMA incremental_vacuum;
+  }
+} -body {
+  execsql {
+    ROLLBACK TO abc;
+    COMMIT;
+    PRAGMA freelist_count
+  }
+} -test {
+  faultsim_test_result {0 2}
+  faultsim_integrity_check
+
+  set sl [db one { SELECT COALESCE(sum(length(x)), 'null') FROM t1 }]
+  if {$sl!="null" && $sl!=1800} { 
+    error "Content looks no good... ($sl)" 
+  }
+}
+
+#-------------------------------------------------------------------------
+# Test fault injection with a temporary database file.
+#
+foreach v {a b} {
+  do_faultsim_test pagerfault-10$v -prep {
+    sqlite3 db ""
+    db func a_string a_string;
+    execsql {
+      PRAGMA cache_size = 10;
+      BEGIN;
+        CREATE TABLE xx(a, b, UNIQUE(a, b));
+        INSERT INTO xx VALUES(a_string(200), a_string(200));
+        INSERT INTO xx SELECT a_string(200), a_string(200) FROM xx;
+        INSERT INTO xx SELECT a_string(200), a_string(200) FROM xx;
+        INSERT INTO xx SELECT a_string(200), a_string(200) FROM xx;
+        INSERT INTO xx SELECT a_string(200), a_string(200) FROM xx;
+      COMMIT;
+    }
+  } -body {
+    execsql { UPDATE xx SET a = a_string(300) }
+  } -test {
+    faultsim_test_result {0 {}}
+    if {$::v == "b"} { execsql { PRAGMA journal_mode = TRUNCATE } }
+    faultsim_integrity_check
+    faultsim_integrity_check
+  }
+}
+
+#-------------------------------------------------------------------------
+# Test fault injection with transaction savepoints (savepoints created
+# when a SAVEPOINT command is executed outside of any other savepoint
+# or transaction context).
+#
+do_test pagerfault-9-pre1 {
+  faultsim_delete_and_reopen
+  db func a_string a_string;
+  execsql {
+    PRAGMA auto_vacuum = on;
+    CREATE TABLE t1(x UNIQUE);
+    CREATE TABLE t2(y UNIQUE);
+    CREATE TABLE t3(z UNIQUE);
+    BEGIN;
+      INSERT INTO t1 VALUES(a_string(202));
+      INSERT INTO t2 VALUES(a_string(203));
+      INSERT INTO t3 VALUES(a_string(204));
+      INSERT INTO t1 SELECT a_string(202) FROM t1;
+      INSERT INTO t1 SELECT a_string(203) FROM t1;
+      INSERT INTO t1 SELECT a_string(204) FROM t1;
+      INSERT INTO t1 SELECT a_string(205) FROM t1;
+      INSERT INTO t2 SELECT a_string(length(x)) FROM t1;
+      INSERT INTO t3 SELECT a_string(length(x)) FROM t1;
+    COMMIT;
+  }
+  faultsim_save_and_close
+} {}
+do_faultsim_test pagerfault-11 -prep {
+  faultsim_restore_and_reopen
+  execsql { PRAGMA cache_size = 10 }
+} -body {
+  execsql {
+    SAVEPOINT trans;
+      UPDATE t2 SET y = y||'2';
+      INSERT INTO t3 SELECT * FROM t2;
+      DELETE FROM t1;
+    ROLLBACK TO trans;
+    UPDATE t1 SET x = x||'3';
+    INSERT INTO t2 SELECT * FROM t1;
+    DELETE FROM t3;
+    RELEASE trans;
+  }
+} -test {
+  faultsim_test_result {0 {}}
+  faultsim_integrity_check
+}
+
+
+#-------------------------------------------------------------------------
+# Test fault injection when writing to a database file that resides on
+# a file-system with a sector-size larger than the database page-size.
+#
+do_test pagerfault-12-pre1 {
+  testvfs ss_layer -default 1
+  ss_layer sectorsize 4096
+  faultsim_delete_and_reopen
+  db func a_string a_string;
+
+  execsql {
+    PRAGMA page_size = 1024;
+    PRAGMA journal_mode = PERSIST;
+    PRAGMA cache_size = 10;
+    BEGIN;
+      CREATE TABLE t1(x, y UNIQUE);
+      INSERT INTO t1 VALUES(a_string(333), a_string(444));
+      INSERT INTO t1 SELECT a_string(333+rowid), a_string(444+rowid) FROM t1;
+      INSERT INTO t1 SELECT a_string(333+rowid), a_string(444+rowid) FROM t1;
+      INSERT INTO t1 SELECT a_string(333+rowid), a_string(444+rowid) FROM t1;
+      INSERT INTO t1 SELECT a_string(333+rowid), a_string(444+rowid) FROM t1;
+      INSERT INTO t1 SELECT a_string(44), a_string(55) FROM t1 LIMIT 13;
+    COMMIT;
+  }
+  faultsim_save_and_close
+} {}
+
+do_faultsim_test pagerfault-12a -prep {
+  faultsim_restore_and_reopen
+  execsql { PRAGMA cache_size = 10 }
+  db func a_string a_string;
+} -body {
+  execsql {
+    UPDATE t1 SET x = a_string(length(x)), y = a_string(length(y));
+  }
+} -test {
+  faultsim_test_result {0 {}}
+  faultsim_integrity_check
+}
+
+do_test pagerfault-12-pre2 {
+  faultsim_restore_and_reopen
+  execsql {
+    CREATE TABLE t2 AS SELECT * FROM t1 LIMIT 10;
+  }
+  faultsim_save_and_close
+} {}
+do_faultsim_test pagerfault-12b -prep {
+  faultsim_restore_and_reopen
+  db func a_string a_string;
+  execsql { SELECT * FROM t1 }
+} -body {
+  set sql(1) { UPDATE t2 SET x = a_string(280) }
+  set sql(2) { UPDATE t1 SET x = a_string(280) WHERE rowid = 5 }
+
+  db eval { SELECT rowid FROM t1 LIMIT 2 } { db eval $sql($rowid) }
+
+} -test {
+  faultsim_test_result {0 {}}
+  faultsim_integrity_check
+}
+
+catch { db close }
+ss_layer delete
+
+
+#-------------------------------------------------------------------------
+# Test fault injection when SQLite opens a database where the size of the
+# database file is zero bytes but the accompanying journal file is larger
+# than that. In this scenario SQLite should delete the journal file 
+# without rolling it back, even if it is in all other respects a valid
+# hot-journal file.
+#
+do_test pagerfault-13-pre1 {
+  faultsim_delete_and_reopen
+  db func a_string a_string;
+  execsql {
+    PRAGMA journal_mode = PERSIST;
+    BEGIN;
+      CREATE TABLE t1(x, y UNIQUE);
+      INSERT INTO t1 VALUES(a_string(333), a_string(444));
+    COMMIT;
+  }
+  db close
+  forcedelete test.db
+  faultsim_save
+} {}
+do_faultsim_test pagerfault-13 -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { CREATE TABLE xx(a, b) }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+#---------------------------------------------------------------------------
+# Test fault injection into a small backup operation.
+#
+do_test pagerfault-14-pre1 {
+  faultsim_delete_and_reopen
+  db func a_string a_string;
+  execsql {
+    PRAGMA journal_mode = PERSIST;
+    ATTACH 'test.db2' AS two;
+    BEGIN;
+      CREATE TABLE t1(x, y UNIQUE);
+      CREATE TABLE two.t2(x, y UNIQUE);
+      INSERT INTO t1 VALUES(a_string(333), a_string(444));
+      INSERT INTO t2 VALUES(a_string(333), a_string(444));
+    COMMIT;
+  }
+  faultsim_save_and_close
+} {}
+
+do_faultsim_test pagerfault-14a -prep {
+  faultsim_restore_and_reopen
+} -body {
+  if {[catch {db backup test.db2} msg]} { error [regsub {.*: } $msg {}] }
+} -test {
+  faultsim_test_result {0 {}} {1 {}} {1 {SQL logic error}}
+}
+
+# If TEMP_STORE is 2 or greater, then the database [db2] will be created
+# as an in-memory database. This test will not work in that case, as it
+# is not possible to change the page-size of an in-memory database. Even
+# using the backup API.
+#
+# Update: It is no longer possible to change the page size of any temp
+# database after it has been created.
+#
+do_faultsim_test pagerfault-14b -prep {
+  catch { db2 close }
+  faultsim_restore_and_reopen
+    sqlite3 db2 ""
+    db2 eval { PRAGMA page_size = 4096; CREATE TABLE xx(a) }
+} -body {
+  sqlite3_backup B db2 main db main
+  B step 200
+  set rc [B finish]
+  if {[string match SQLITE_IOERR_* $rc]} {set rc SQLITE_IOERR}
+  if {$rc != "SQLITE_OK"} { error [sqlite3_test_errstr $rc] }
+  set {} {}
+} -test {
+  faultsim_test_result {1 {attempt to write a readonly database}} \
+                       {1 {sqlite3_backup_init() failed}}
+}
+
+do_faultsim_test pagerfault-14c -prep {
+  catch { db2 close }
+  faultsim_restore_and_reopen
+  sqlite3 db2 test.db2
+  db2 eval { 
+    PRAGMA synchronous = off; 
+    PRAGMA page_size = 4096; 
+    CREATE TABLE xx(a);
+  }
+} -body {
+  sqlite3_backup B db2 main db main
+  B step 200
+  set rc [B finish]
+  if {[string match SQLITE_IOERR_* $rc]} {set rc SQLITE_IOERR}
+  if {$rc != "SQLITE_OK"} { error [sqlite3_test_errstr $rc] }
+  set {} {}
+} -test {
+  faultsim_test_result {0 {}} {1 {sqlite3_backup_init() failed}}
+}
+
+do_test pagerfault-15-pre1 {
+  faultsim_delete_and_reopen
+  db func a_string a_string;
+  execsql {
+    BEGIN;
+      CREATE TABLE t1(x, y UNIQUE);
+      INSERT INTO t1 VALUES(a_string(11), a_string(22));
+      INSERT INTO t1 VALUES(a_string(11), a_string(22));
+    COMMIT;
+  }
+  faultsim_save_and_close
+} {}
+do_faultsim_test pagerfault-15 -prep {
+  faultsim_restore_and_reopen
+  db func a_string a_string;
+} -body {
+  db eval { SELECT * FROM t1 LIMIT 1 } {
+    execsql {
+      BEGIN; INSERT INTO t1 VALUES(a_string(333), a_string(555)); COMMIT;
+      BEGIN; INSERT INTO t1 VALUES(a_string(333), a_string(555)); COMMIT;
+    }
+  }
+} -test {
+  faultsim_test_result {0 {}}
+  faultsim_integrity_check
+}
+
+
+do_test pagerfault-16-pre1 {
+  faultsim_delete_and_reopen
+  execsql { CREATE TABLE t1(x, y UNIQUE) }
+  faultsim_save_and_close
+} {}
+do_faultsim_test pagerfault-16 -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql {
+    PRAGMA locking_mode = exclusive;
+    PRAGMA journal_mode = wal;
+    INSERT INTO t1 VALUES(1, 2);
+    INSERT INTO t1 VALUES(3, 4);
+    PRAGMA journal_mode = delete;
+    INSERT INTO t1 VALUES(4, 5);
+    PRAGMA journal_mode = wal;
+    INSERT INTO t1 VALUES(6, 7);
+    PRAGMA journal_mode = persist;
+    INSERT INTO t1 VALUES(8, 9);
+  }
+} -test {
+  faultsim_test_result {0 {exclusive wal delete wal persist}}
+  faultsim_integrity_check
+}
+
+
+#-------------------------------------------------------------------------
+# Test fault injection while changing into and out of WAL mode.
+#
+do_test pagerfault-17-pre1 {
+  faultsim_delete_and_reopen
+  execsql {
+    CREATE TABLE t1(a PRIMARY KEY, b);
+    INSERT INTO t1 VALUES(1862, 'Botha');
+    INSERT INTO t1 VALUES(1870, 'Smuts');
+    INSERT INTO t1 VALUES(1866, 'Hertzog');
+  }
+  faultsim_save_and_close
+} {}
+do_faultsim_test pagerfault-17a -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql {
+    PRAGMA journal_mode = wal;
+    PRAGMA journal_mode = delete;
+  }
+} -test {
+  faultsim_test_result {0 {wal delete}}
+  faultsim_integrity_check
+}
+do_faultsim_test pagerfault-17b -prep {
+  faultsim_restore_and_reopen
+  execsql { PRAGMA synchronous = OFF }
+} -body {
+  execsql {
+    PRAGMA journal_mode = wal;
+    INSERT INTO t1 VALUES(22, 'Clarke');
+    PRAGMA journal_mode = delete;
+  }
+} -test {
+  faultsim_test_result {0 {wal delete}}
+  faultsim_integrity_check
+}
+do_faultsim_test pagerfault-17c -prep {
+  faultsim_restore_and_reopen
+  execsql { 
+    PRAGMA locking_mode = exclusive;
+    PRAGMA journal_mode = wal;
+  }
+} -body {
+  execsql { PRAGMA journal_mode = delete }
+} -test {
+  faultsim_test_result {0 delete}
+  faultsim_integrity_check
+}
+do_faultsim_test pagerfault-17d -prep {
+  catch { db2 close }
+  faultsim_restore_and_reopen
+  sqlite3 db2 test.db
+  execsql { PRAGMA journal_mode = delete }
+  execsql { PRAGMA journal_mode = wal }
+  execsql { INSERT INTO t1 VALUES(99, 'Bradman') } db2
+} -body {
+  execsql { PRAGMA journal_mode = delete }
+} -test {
+  faultsim_test_result {1 {database is locked}}
+  faultsim_integrity_check
+}
+do_faultsim_test pagerfault-17e -prep {
+  catch { db2 close }
+  faultsim_restore_and_reopen
+  sqlite3 db2 test.db
+  execsql { PRAGMA journal_mode = delete }
+  execsql { PRAGMA journal_mode = wal }
+  set ::chan [launch_testfixture]
+  testfixture $::chan {
+    sqlite3 db test.db
+    db eval { INSERT INTO t1 VALUES(101, 'Latham') }
+  }
+  catch { testfixture $::chan sqlite_abort }
+  catch { close $::chan }
+} -body {
+  execsql { PRAGMA journal_mode = delete }
+} -test {
+  faultsim_test_result {0 delete}
+  faultsim_integrity_check
+}
+
+#-------------------------------------------------------------------------
+# Test fault-injection when changing from journal_mode=persist to 
+# journal_mode=delete (this involves deleting the journal file).
+#
+do_test pagerfault-18-pre1 {
+  faultsim_delete_and_reopen
+  execsql {
+    CREATE TABLE qq(x);
+    INSERT INTO qq VALUES('Herbert');
+    INSERT INTO qq VALUES('Macalister');
+    INSERT INTO qq VALUES('Mackenzie');
+    INSERT INTO qq VALUES('Lilley');
+    INSERT INTO qq VALUES('Palmer');
+  }
+  faultsim_save_and_close
+} {}
+do_faultsim_test pagerfault-18 -prep {
+  faultsim_restore_and_reopen
+  execsql {
+    PRAGMA journal_mode = PERSIST;
+    INSERT INTO qq VALUES('Beatty');
+  }
+} -body {
+  execsql { PRAGMA journal_mode = delete }
+} -test {
+  faultsim_test_result {0 delete}
+  faultsim_integrity_check
+}
+
+do_faultsim_test pagerfault-19a -prep {
+  sqlite3 db :memory:
+  db func a_string a_string
+  execsql {
+    PRAGMA auto_vacuum = FULL;
+    BEGIN;
+      CREATE TABLE t1(a, b);
+      INSERT INTO t1 VALUES(a_string(5000), a_string(6000));
+    COMMIT;
+  }
+} -body {
+  execsql { 
+    CREATE TABLE t2(a, b);
+    INSERT INTO t2 SELECT * FROM t1; 
+    DELETE FROM t1;
+  }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+do_test pagerfault-19-pre1 {
+  faultsim_delete_and_reopen
+  execsql {
+    PRAGMA auto_vacuum = FULL;
+    CREATE TABLE t1(x); INSERT INTO t1 VALUES(1);
+    CREATE TABLE t2(x); INSERT INTO t2 VALUES(2);
+    CREATE TABLE t3(x); INSERT INTO t3 VALUES(3);
+    CREATE TABLE t4(x); INSERT INTO t4 VALUES(4);
+    CREATE TABLE t5(x); INSERT INTO t5 VALUES(5);
+    CREATE TABLE t6(x); INSERT INTO t6 VALUES(6);
+  }
+  faultsim_save_and_close
+} {}
+do_faultsim_test pagerfault-19b -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { 
+    BEGIN;
+      UPDATE t4 SET x = x+1;
+      UPDATE t6 SET x = x+1;
+      SAVEPOINT one;
+        UPDATE t3 SET x = x+1;
+        SAVEPOINT two;
+          DROP TABLE t2;
+      ROLLBACK TO one;
+    COMMIT;
+    SELECT * FROM t3;
+    SELECT * FROM t4;
+    SELECT * FROM t6;
+  }
+} -test {
+  faultsim_test_result {0 {3 5 7}}
+}
+
+#-------------------------------------------------------------------------
+# This tests fault-injection in a special case in the auto-vacuum code.
+#
+do_test pagerfault-20-pre1 {
+  faultsim_delete_and_reopen
+  execsql {
+    PRAGMA cache_size = 10;
+    PRAGMA auto_vacuum = FULL;
+    CREATE TABLE t0(a, b);
+  }
+  faultsim_save_and_close
+} {}
+do_faultsim_test pagerfault-20 -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { 
+    BEGIN;
+      CREATE TABLE t1(a, b);
+      CREATE TABLE t2(a, b);
+      DROP TABLE t1;
+    COMMIT;
+  }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+do_test pagerfault-21-pre1 {
+  faultsim_delete_and_reopen
+  execsql {
+    PRAGMA cache_size = 10;
+    CREATE TABLE t0(a PRIMARY KEY, b);
+    INSERT INTO t0 VALUES(1, 2);
+  }
+  faultsim_save_and_close
+} {}
+do_faultsim_test pagerfault-21 -prep {
+  faultsim_restore_and_reopen
+} -body {
+  db eval { SELECT * FROM t0 LIMIT 1 } {
+    db eval { INSERT INTO t0 SELECT a+1, b FROM t0 }
+    db eval { INSERT INTO t0 SELECT a+2, b FROM t0 }
+  }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+
+#-------------------------------------------------------------------------
+# Test fault-injection and rollback when the nReserve header value 
+# is non-zero.
+#
+do_test pagerfault-21-pre1 {
+  faultsim_delete_and_reopen
+  execsql {
+    PRAGMA page_size = 1024;
+    PRAGMA journal_mode = WAL;
+    PRAGMA journal_mode = DELETE;
+  }
+  db close
+  hexio_write test.db 20    10
+  hexio_write test.db 105 03F0
+  sqlite3 db test.db
+  db func a_string a_string
+  execsql {
+    CREATE TABLE t0(a PRIMARY KEY, b UNIQUE);
+    INSERT INTO t0 VALUES(a_string(222), a_string(333));
+    INSERT INTO t0 VALUES(a_string(223), a_string(334));
+    INSERT INTO t0 VALUES(a_string(224), a_string(335));
+    INSERT INTO t0 VALUES(a_string(225), a_string(336));
+  }
+  faultsim_save_and_close
+} {}
+
+do_faultsim_test pagerfault-21 -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { INSERT INTO t0 SELECT a||'x', b||'x' FROM t0 }
+} -test {
+  faultsim_test_result {0 {}}
+  faultsim_integrity_check
+}
+ifcapable crashtest {
+  faultsim_delete_and_reopen
+  execsql {
+    PRAGMA page_size = 1024;
+    PRAGMA journal_mode = WAL;
+    PRAGMA journal_mode = DELETE;
+  }
+  db close
+  hexio_write test.db 20    10
+  hexio_write test.db 105 03F0
+
+  sqlite3 db test.db
+  db func a_string a_string
+  execsql {
+    CREATE TABLE t0(a PRIMARY KEY, b UNIQUE);
+    INSERT INTO t0 VALUES(a_string(222), a_string(333));
+    INSERT INTO t0 VALUES(a_string(223), a_string(334));
+  }
+  faultsim_save_and_close
+
+  for {set iTest 1} {$iTest<50} {incr iTest} {
+    do_test pagerfault-21.crash.$iTest.1 {
+      crashsql -delay 1 -file test.db -seed $iTest {
+        BEGIN;
+          CREATE TABLE t1(a PRIMARY KEY, b UNIQUE);
+          INSERT INTO t1 SELECT a, b FROM t0;
+        COMMIT;
+      }
+    } {1 {child process exited abnormally}}
+    do_test pagerfault-22.$iTest.2 {
+      sqlite3 db test.db
+      execsql { PRAGMA integrity_check }
+    } {ok}
+    db close
+  }
+}
+
+
+#-------------------------------------------------------------------------
+# When a 3.7.0 client opens a write-transaction on a database file that
+# has been appended to or truncated by a pre-370 client, it updates
+# the db-size in the file header immediately. This test case provokes
+# errors during that operation.
+#
+do_test pagerfault-22-pre1 {
+  faultsim_delete_and_reopen
+  db func a_string a_string
+  execsql {
+    PRAGMA page_size = 1024;
+    PRAGMA auto_vacuum = 0;
+    CREATE TABLE t1(a);
+    CREATE INDEX i1 ON t1(a);
+    INSERT INTO t1 VALUES(a_string(3000));
+    CREATE TABLE t2(a);
+    INSERT INTO t2 VALUES(1);
+  }
+  db close
+  sql36231 { INSERT INTO t1 VALUES(a_string(3000)) }
+  faultsim_save_and_close
+} {}
+do_faultsim_test pagerfault-22 -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { INSERT INTO t2 VALUES(2) }
+  execsql { SELECT * FROM t2 }
+} -test {
+  faultsim_test_result {0 {1 2}}
+  faultsim_integrity_check
+}
+
+#-------------------------------------------------------------------------
+# Provoke an OOM error during a commit of multi-file transaction. One of
+# the databases written during the transaction is an in-memory database.
+# This test causes rollback of the in-memory database after CommitPhaseOne()
+# has successfully returned. i.e. the series of calls for the aborted commit 
+# is:
+#
+#   PagerCommitPhaseOne(<in-memory-db>)   ->   SQLITE_OK
+#   PagerCommitPhaseOne(<file-db>)        ->   SQLITE_IOERR
+#   PagerRollback(<in-memory-db>)
+#   PagerRollback(<file-db>)
+#
+do_faultsim_test pagerfault-23 -prep {
+  sqlite3 db :memory:
+  foreach f [glob -nocomplain test.db*] { forcedelete $f }
+  db eval { 
+    ATTACH 'test.db2' AS aux;
+    CREATE TABLE t1(a, b);
+    CREATE TABLE aux.t2(a, b);
+  }
+} -body {
+  execsql { 
+    BEGIN;
+      INSERT INTO t1 VALUES(1,2);
+      INSERT INTO t2 VALUES(3,4); 
+    COMMIT;
+  }
+} -test {
+  faultsim_test_result {0 {}}
+  faultsim_integrity_check
+}
+
+do_faultsim_test pagerfault-24 -prep {
+  faultsim_delete_and_reopen
+  db eval { PRAGMA temp_store = file }
+  execsql { CREATE TABLE x(a, b) }
+} -body {
+  execsql { CREATE TEMP TABLE t1(a, b) }
+} -test {
+  faultsim_test_result {0 {}} \
+    {1 {unable to open a temporary database file for storing temporary tables}}
+  set ic [db eval { PRAGMA temp.integrity_check }]
+  if {$ic != "ok"} { error "Integrity check: $ic" }
+}
+
+proc lockrows {n} {
+  if {$n==0} { return "" }
+  db eval { SELECT * FROM t1 WHERE oid = $n } { 
+    return [lockrows [expr {$n-1}]]
+  }
+}
+
+
+do_test pagerfault-25-pre1 {
+  faultsim_delete_and_reopen
+  db func a_string a_string
+  execsql {
+    PRAGMA page_size = 1024;
+    PRAGMA auto_vacuum = 0;
+    CREATE TABLE t1(a);
+    INSERT INTO t1 VALUES(a_string(500));
+    INSERT INTO t1 SELECT a_string(500) FROM t1;
+    INSERT INTO t1 SELECT a_string(500) FROM t1;
+    INSERT INTO t1 SELECT a_string(500) FROM t1;
+    INSERT INTO t1 SELECT a_string(500) FROM t1;
+    INSERT INTO t1 SELECT a_string(500) FROM t1;
+  }
+  faultsim_save_and_close
+} {}
+do_faultsim_test pagerfault-25 -prep {
+  faultsim_restore_and_reopen
+  db func a_string a_string
+  set ::channel [db incrblob -readonly t1 a 1]
+  execsql { 
+    PRAGMA cache_size = 10;
+    BEGIN;
+      INSERT INTO t1 VALUES(a_string(3000));
+      INSERT INTO t1 VALUES(a_string(3000));
+  }
+} -body {
+  lockrows 30
+} -test {
+  catch { lockrows 30 }
+  catch { db eval COMMIT }
+  close $::channel
+  faultsim_test_result {0 {}} 
+}
+
+do_faultsim_test pagerfault-26 -prep {
+  faultsim_delete_and_reopen
+  execsql {
+    PRAGMA page_size = 1024;
+    PRAGMA journal_mode = truncate;
+    PRAGMA auto_vacuum = full;
+    PRAGMA locking_mode=exclusive;
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, 2);
+    PRAGMA page_size = 4096;
+  }
+} -body {
+  execsql {
+    VACUUM;
+  }
+} -test {
+  faultsim_test_result {0 {}}
+
+  set contents [db eval {SELECT * FROM t1}]
+  if {$contents != "1 2"} { error "Bad database contents ($contents)" }
+
+  if {[atomic_batch_write test.db]==0} {
+    set sz [file size test.db]
+    if {$testrc!=0 && $sz!=1024*3 && $sz!=4096*3} { 
+      error "Expected file size 3072 or 12288 bytes - actual size $sz bytes"
+    }
+    if {$testrc==0 && $sz!=4096*3} { 
+      error "Expected file size to be 12288 bytes - actual size $sz bytes"
+    }
+  }
+} 
+
+do_test pagerfault-27-pre {
+  faultsim_delete_and_reopen
+  db func a_string a_string
+  execsql {
+    PRAGMA page_size = 1024;
+    CREATE TABLE t1(a, b);
+    CREATE TABLE t2(a UNIQUE, b UNIQUE);
+    INSERT INTO t2 VALUES( a_string(800), a_string(800) );
+    INSERT INTO t2 SELECT a_string(800), a_string(800) FROM t2;
+    INSERT INTO t2 SELECT a_string(800), a_string(800) FROM t2;
+    INSERT INTO t2 SELECT a_string(800), a_string(800) FROM t2;
+    INSERT INTO t2 SELECT a_string(800), a_string(800) FROM t2;
+    INSERT INTO t2 SELECT a_string(800), a_string(800) FROM t2;
+    INSERT INTO t2 SELECT a_string(800), a_string(800) FROM t2;
+    INSERT INTO t1 VALUES (a_string(20000), a_string(20000));
+  }
+  faultsim_save_and_close
+} {}
+do_faultsim_test pagerfault-27 -faults ioerr-persistent -prep {
+  faultsim_restore_and_reopen
+  db func a_string a_string
+  execsql { 
+    PRAGMA cache_size = 10;
+    BEGIN EXCLUSIVE;
+  }
+  set ::channel [db incrblob t1 a 1]
+} -body {
+  puts $::channel [string repeat abc 6000]
+  flush $::channel
+} -test {
+  catchsql { UPDATE t2 SET a = a_string(800), b = a_string(800) }
+  catch { close $::channel }
+  catchsql { ROLLBACK }
+  faultsim_integrity_check
+}
+
+
+#-------------------------------------------------------------------------
+#
+do_test pagerfault-28-pre {
+  faultsim_delete_and_reopen
+  db func a_string a_string
+  execsql {
+    PRAGMA page_size = 512;
+
+    PRAGMA journal_mode = wal;
+    PRAGMA wal_autocheckpoint = 0;
+    PRAGMA cache_size = 100000;
+
+    BEGIN;
+      CREATE TABLE t2(a UNIQUE, b UNIQUE);
+      INSERT INTO t2 VALUES( a_string(800), a_string(800) );
+      INSERT INTO t2 SELECT a_string(800), a_string(800) FROM t2;
+      INSERT INTO t2 SELECT a_string(800), a_string(800) FROM t2;
+      INSERT INTO t2 SELECT a_string(800), a_string(800) FROM t2;
+      INSERT INTO t2 SELECT a_string(800), a_string(800) FROM t2;
+      INSERT INTO t2 SELECT a_string(800), a_string(800) FROM t2;
+      INSERT INTO t2 SELECT a_string(800), a_string(800) FROM t2;
+      INSERT INTO t2 SELECT a_string(800), a_string(800) FROM t2;
+      INSERT INTO t2 SELECT a_string(800), a_string(800) FROM t2;
+      INSERT INTO t2 SELECT a_string(800), a_string(800) FROM t2;
+      INSERT INTO t2 SELECT a_string(800), a_string(800) FROM t2;
+      INSERT INTO t2 SELECT a_string(800), a_string(800) FROM t2;
+    COMMIT;
+    CREATE TABLE t1(a PRIMARY KEY, b);
+  }
+  expr {[file size test.db-shm] >= 96*1024}
+} {1}
+faultsim_save_and_close
+
+do_faultsim_test pagerfault-28a -faults oom* -prep {
+  faultsim_restore_and_reopen
+  execsql { PRAGMA mmap_size=0 }
+
+  sqlite3 db2 test.db
+  db2 eval { SELECT count(*) FROM t2 }
+
+  db func a_string a_string
+  execsql { 
+    BEGIN;
+      INSERT INTO t1 VALUES(a_string(2000), a_string(2000));
+      INSERT INTO t1 VALUES(a_string(2000), a_string(2000));
+  }
+  set ::STMT [sqlite3_prepare db "SELECT * FROM t1 ORDER BY a" -1 DUMMY]
+  sqlite3_step $::STMT
+} -body {
+  execsql { ROLLBACK }
+} -test {
+  db2 close
+  sqlite3_finalize $::STMT
+  catchsql { ROLLBACK }
+  faultsim_integrity_check
+}
+
+faultsim_restore_and_reopen
+sqlite3 db2 test.db
+db2 eval {SELECT count(*) FROM t2}
+db close
+
+do_faultsim_test pagerfault-28b -faults oom* -prep {
+  sqlite3 db test.db
+} -body {
+  execsql { SELECT count(*) FROM t2 }
+} -test {
+  faultsim_test_result {0 2048}
+  db close
+}
+
+db2 close
+
+#-------------------------------------------------------------------------
+# Try this:
+#
+#    1) Put the pager in ERROR state (error during rollback)
+#
+#    2) Next time the connection is used inject errors into all xWrite() and
+#       xUnlock() calls. This causes the hot-journal rollback to fail and
+#       the pager to declare its locking state UNKNOWN.
+#
+#    3) Same again.
+#
+#    4a) Stop injecting errors. Allow the rollback to succeed. Check that
+#        the database is Ok. Or, 
+#
+#    4b) Close and reopen the db. Check that the db is Ok.
+#
+proc custom_injectinstall {} {
+  testvfs custom -default true
+  custom filter {xWrite xUnlock}
+}
+proc custom_injectuninstall {} {
+  catch {db  close}
+  catch {db2 close}
+  custom delete
+}
+proc custom_injectstart {iFail} {
+  custom ioerr $iFail 1
+}
+proc custom_injectstop {} {
+  custom ioerr
+}
+set ::FAULTSIM(custom)          [list      \
+  -injectinstall   custom_injectinstall    \
+  -injectstart     custom_injectstart      \
+  -injectstop      custom_injectstop       \
+  -injecterrlist   {{1 {disk I/O error}}}  \
+  -injectuninstall custom_injectuninstall  \
+]
+
+do_test pagerfault-29-pre {
+  faultsim_delete_and_reopen
+  db func a_string a_string
+  execsql {
+    PRAGMA page_size = 1024;
+    PRAGMA cache_size = 5;
+
+    BEGIN;
+      CREATE TABLE t2(a UNIQUE, b UNIQUE);
+      INSERT INTO t2 VALUES( a_string(800), a_string(800) );
+      INSERT INTO t2 SELECT a_string(800), a_string(800) FROM t2;
+      INSERT INTO t2 SELECT a_string(800), a_string(800) FROM t2;
+      INSERT INTO t2 SELECT a_string(800), a_string(800) FROM t2;
+      INSERT INTO t2 SELECT a_string(800), a_string(800) FROM t2;
+    COMMIT;
+  }
+  expr {[file size test.db] >= 50*1024}
+} {1}
+faultsim_save_and_close
+foreach {tn tt} {
+  29 { catchsql ROLLBACK }
+  30 { db close ; sqlite3 db test.db }
+} {
+  do_faultsim_test pagerfault-$tn -faults custom -prep {
+    faultsim_restore_and_reopen
+      db func a_string a_string
+      execsql {
+        PRAGMA cache_size = 5;
+        BEGIN;
+        UPDATE t2 SET a = a_string(799);
+      }
+  } -body {
+    catchsql ROLLBACK
+    catchsql ROLLBACK
+    catchsql ROLLBACK
+  } -test {
+    eval $::tt
+    if {"ok" != [db one {PRAGMA integrity_check}]} {
+      error "integrity check failed"
+    }
+  }
+}
+
+do_test pagerfault-31-pre {
+  sqlite3_shutdown
+  sqlite3_config_uri 1
+} {SQLITE_OK}
+do_faultsim_test pagerfault-31 -faults oom* -body {
+  sqlite3 db {file:one?mode=memory&cache=shared}
+  db eval {
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(1);
+    SELECT * FROM t1;
+  }
+} -test {
+  faultsim_test_result {0 1} {1 {}}
+  catch { db close }
+}
+sqlite3_shutdown
+sqlite3_config_uri 0
+
+do_test pagerfault-32-pre {
+  reset_db
+  execsql {
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES('one');
+  }
+} {}
+faultsim_save_and_close
+
+do_faultsim_test pagerfault-32 -prep {
+  faultsim_restore_and_reopen
+  db eval { SELECT * FROM t1; }
+} -body {
+  execsql { SELECT * FROM t1; }
+} -test {
+  faultsim_test_result {0 one}
+}
+sqlite3_shutdown
+sqlite3_config_uri 0
+
+do_faultsim_test pagerfault-33a -prep {
+  sqlite3 db :memory:
+  execsql {
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, 2);
+  }
+} -body {
+  execsql { VACUUM }
+} -test {
+  faultsim_test_result {0 {}}
+} 
+do_faultsim_test pagerfault-33b -prep {
+  sqlite3 db ""
+  execsql {
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, 2);
+  }
+} -body {
+  execsql { VACUUM }
+} -test {
+  faultsim_test_result {0 {}}
+} 
+
+do_test pagerfault-34-pre {
+  reset_db
+  execsql {
+    CREATE TABLE t1(x PRIMARY KEY);
+  }
+} {}
+faultsim_save_and_close
+do_faultsim_test pagerfault-34 -prep {
+  faultsim_restore_and_reopen
+  execsql {
+    BEGIN;
+      INSERT INTO t1 VALUES( randomblob(4000) );
+      DELETE FROM t1;
+  }
+} -body {
+  execsql COMMIT
+} -test {
+  faultsim_test_result {0 {}}
+} 
+
+do_test pagerfault-35-pre {
+  faultsim_delete_and_reopen
+  execsql {
+    CREATE TABLE t1(x PRIMARY KEY, y);
+    INSERT INTO t1 VALUES(randomblob(200), randomblob(200));
+    INSERT INTO t1 SELECT randomblob(200), randomblob(200) FROM t1;
+    INSERT INTO t1 SELECT randomblob(200), randomblob(200) FROM t1;
+    INSERT INTO t1 SELECT randomblob(200), randomblob(200) FROM t1;
+  }
+  faultsim_save_and_close
+} {}
+testvfs tv -default 1
+tv sectorsize 8192;
+tv devchar [list]
+do_faultsim_test pagerfault-35 -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { UPDATE t1 SET x=randomblob(200) }
+} -test {
+  faultsim_test_result {0 {}}
+}
+catch {db close}
+tv delete
+
+sqlite3_shutdown
+sqlite3_config_uri 1
+do_test pagerfault-36-pre {
+  faultsim_delete_and_reopen
+  execsql {
+    CREATE TABLE t1(x PRIMARY KEY, y);
+    INSERT INTO t1 VALUES(randomblob(200), randomblob(200));
+    INSERT INTO t1 SELECT randomblob(200), randomblob(200) FROM t1;
+    INSERT INTO t1 SELECT randomblob(200), randomblob(200) FROM t1;
+    INSERT INTO t1 SELECT randomblob(200), randomblob(200) FROM t1;
+  }
+  faultsim_save_and_close
+} {}
+do_faultsim_test pagerfault-36 -prep {
+  faultsim_restore
+  sqlite3 db file:test.db?cache=shared
+  sqlite3 db2 file:test.db?cache=shared
+  db2 eval {
+    BEGIN;
+    SELECT count(*) FROM sqlite_master;
+  }
+  db eval {
+    PRAGMA cache_size = 1;
+    BEGIN;
+      UPDATE t1 SET x = randomblob(200);
+  }
+} -body {
+  execsql ROLLBACK db
+} -test {
+  catch { db eval {UPDATE t1 SET x = randomblob(200)} }
+  faultsim_test_result {0 {}}
+  catch { db close }
+  catch { db2 close }
+}
+
+sqlite3_shutdown
+sqlite3_config_uri 0
+sqlite3_initialize
+
+finish_test
diff --git a/test/pagerfault2.test b/test/pagerfault2.test
new file mode 100644
index 0000000000000000000000000000000000000000..7f6c995efd603f6dcc76a83df701cf1b3907bfc2
--- /dev/null
+++ b/test/pagerfault2.test
@@ -0,0 +1,98 @@
+# 2010 June 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# The tests in this file test the pager modules response to various
+# fault conditions (OOM, IO error, disk full etc.). They are similar
+# to those in file pagerfault1.test. 
+#
+# More specifically, the tests in this file are those deemed too slow to 
+# run as part of pagerfault1.test.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+source $testdir/malloc_common.tcl
+
+if {[permutation] == "inmemory_journal"} {
+  finish_test
+  return
+}
+
+sqlite3_memdebug_vfs_oom_test 0
+
+set a_string_counter 1
+proc a_string {n} {
+  global a_string_counter
+  incr a_string_counter
+  string range [string repeat "${a_string_counter}." $n] 1 $n
+}
+db func a_string a_string
+
+do_test pagerfault2-1-pre1 {
+  faultsim_delete_and_reopen
+  db func a_string a_string
+  execsql {
+    PRAGMA auto_vacuum = 0;
+    PRAGMA journal_mode = DELETE;
+    PRAGMA page_size = 1024;
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(a_string(401), a_string(402));
+  }
+  for {set ii 0} {$ii < 13} {incr ii} {
+    execsql { INSERT INTO t1 SELECT a_string(401), a_string(402) FROM t1 }
+  }
+  faultsim_save_and_close
+  file size test.db
+} [expr 1024 * 8268]
+
+do_faultsim_test pagerfault2-1 -faults oom-transient -prep {
+  faultsim_restore_and_reopen
+  sqlite3_db_config_lookaside db 0 256 4096
+  execsql { 
+    BEGIN;
+      SELECT * FROM t1;
+      INSERT INTO t1 VALUES(5, 6);
+      SAVEPOINT abc;
+        UPDATE t1 SET a = a||'x' WHERE rowid<3700;
+  }
+} -body {
+  execsql { UPDATE t1 SET a = a||'x' WHERE rowid>=3700 AND rowid<=4200 }
+  execsql { ROLLBACK TO abc }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+do_test pagerfault2-2-pre1 {
+  faultsim_restore_and_reopen
+  execsql { DELETE FROM t1 }
+  faultsim_save_and_close
+} {}
+
+do_faultsim_test pagerfault2-2 -faults oom-transient -prep {
+  faultsim_restore_and_reopen
+  sqlite3_db_config_lookaside db 0 256 4096
+  db func a_string a_string
+
+  execsql { 
+    PRAGMA cache_size = 20;
+    BEGIN;
+      INSERT INTO t1 VALUES(a_string(401), a_string(402));
+      SAVEPOINT abc;
+  }
+} -body {
+  execsql { INSERT INTO t1 VALUES (a_string(2000000), a_string(2500000)) }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+sqlite3_memdebug_vfs_oom_test 1
+finish_test
diff --git a/test/pagerfault3.test b/test/pagerfault3.test
new file mode 100644
index 0000000000000000000000000000000000000000..a4301cd17d2b3fcfb4a538f681f14dc6757249a2
--- /dev/null
+++ b/test/pagerfault3.test
@@ -0,0 +1,63 @@
+# 2011 January 28
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+source $testdir/malloc_common.tcl
+
+if {[permutation] == "inmemory_journal"} {
+  finish_test
+  return
+}
+
+# Create a database with page-size 2048 bytes that uses 2 pages. Populate
+# it so that if the page-size is changed to 1024 bytes and the db vacuumed, 
+# the new db size is 3 pages.
+#
+do_test pagerfault3-pre1 {
+  execsql {
+    PRAGMA auto_vacuum = 0;
+    PRAGMA page_size = 2048;
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(randomblob(1200));
+    PRAGMA page_count;
+  }
+} {2}
+do_test pagerfault3-pre2 {
+  faultsim_save_and_close
+  faultsim_restore_and_reopen
+  execsql { 
+    PRAGMA page_size = 1024;
+    VACUUM;
+    PRAGMA page_count;
+  }
+} {3}
+
+# Now do the page-size change and VACUUM with IO error injection. When
+# an IO error is injected into the final xSync() of the commit, the pager
+# will have to extend the db file from 3072 to 4096 byts when rolling
+# back the hot-journal file. This is a special case in pager_truncate().
+#
+do_faultsim_test pagerfault3-1 -faults ioerr-transient -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { 
+    PRAGMA page_size = 1024;
+    VACUUM;
+  }
+} -test {
+  faultsim_test_result {0 {}} 
+  faultsim_integrity_check
+}
+
+finish_test
diff --git a/test/pageropt.test b/test/pageropt.test
new file mode 100644
index 0000000000000000000000000000000000000000..f58b8ee7811b0031bf9defcb5dfb279452223e97
--- /dev/null
+++ b/test/pageropt.test
@@ -0,0 +1,209 @@
+# 2007 April 12
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+# The focus of the tests in this file are to verify that the
+# pager optimizations implemented in version 3.3.14 work.
+#
+# $Id: pageropt.test,v 1.5 2008/08/20 14:49:25 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+do_not_use_codec
+
+ifcapable {!pager_pragmas||secure_delete||direct_read} {
+  finish_test
+  return
+}
+
+# A non-zero reserved_bytes value changes the number of pages in the 
+# database file, which messes up the results in this test.
+if {[nonzero_reserved_bytes]} {finish_test; return;}
+
+# Run the SQL statement supplied by the argument and return
+# the results.  Prepend four integers to the beginning of the
+# result which are
+#
+#     (1)  The number of page reads from the database
+#     (2)  The number of page writes to the database
+#     (3)  The number of page writes to the journal
+#     (4)  The number of cache pages freed
+#
+proc pagercount_sql {sql {db db}} {
+  global sqlite3_pager_readdb_count
+  global sqlite3_pager_writedb_count
+  global sqlite3_pager_writej_count
+  global sqlite3_pager_pgfree_count
+  set sqlite3_pager_readdb_count 0
+  set sqlite3_pager_writedb_count 0
+  set sqlite3_pager_writej_count 0
+  set r [$db eval $sql]
+  set cnt [list $sqlite3_pager_readdb_count \
+                $sqlite3_pager_writedb_count \
+                $sqlite3_pager_writej_count ]
+  return [concat $cnt $r]
+}
+
+# Setup the test database
+#
+do_test pageropt-1.1 {
+  sqlite3_soft_heap_limit 0
+  execsql {
+    PRAGMA auto_vacuum = OFF;
+    PRAGMA page_size = 1024;
+  }
+  pagercount_sql {
+    CREATE TABLE t1(x);
+  }
+} {0 2 0}
+do_test pageropt-1.2 {
+  pagercount_sql {
+    INSERT INTO t1 VALUES(randomblob(5000));
+  }
+} {0 6 2}
+
+# Verify that values remain in cache on for subsequent reads.
+# We should not have to go back to disk.
+#
+do_test pageropt-1.3 {
+  pagercount_sql {
+    SELECT length(x) FROM t1
+  }
+} {0 0 0 5000}
+
+# If another thread reads the database, the original cache
+# remains valid.
+#
+sqlite3 db2 test.db
+set blobcontent [db2 one {SELECT hex(x) FROM t1}]
+do_test pageropt-1.4 {
+  pagercount_sql {
+    SELECT hex(x) FROM t1
+  }
+} [list 0 0 0 $blobcontent]
+
+# But if the other thread modifies the database, then the cache
+# must refill.
+#
+ifcapable mmap {
+  set x [expr {[permutation]=="mmap" ? 1 : 6}]
+} else {
+  set x 6
+}
+do_test pageropt-1.5 {
+  db2 eval {CREATE TABLE t2(y)}
+  pagercount_sql {
+    SELECT hex(x) FROM t1
+  }
+} [list $x 0 0 $blobcontent]
+do_test pageropt-1.6 {
+  pagercount_sql {
+    SELECT hex(x) FROM t1
+  }
+} [list 0 0 0 $blobcontent]
+
+# Verify that the last page of an overflow chain is not read from
+# disk when deleting a row.  The one row of t1(x) has four pages
+# of overflow.  So deleting that row from t1 should involve reading
+# the sqlite_master table (1 page) the main page of t1 (1 page) and
+# the three overflow pages of t1 for a total of 5 pages.
+#
+# Pages written are page 1 (for the freelist pointer), the root page
+# of the table, and one of the overflow chain pointers because it
+# becomes the trunk of the freelist.  Total 3.
+#
+do_test pageropt-2.1 {
+  db close
+  sqlite3 db test.db
+  pagercount_sql {
+    DELETE FROM t1 WHERE rowid=1
+  }
+} {5 3 3}
+
+# When pulling pages off of the freelist, there is no reason
+# to actually bring in the old content.
+#
+do_test pageropt-2.2 {
+  db close
+  sqlite3 db test.db
+  pagercount_sql {
+    INSERT INTO t1 VALUES(randomblob(1500));
+  }
+} {3 4 3}
+do_test pageropt-2.3 {
+  pagercount_sql {
+    INSERT INTO t1 VALUES(randomblob(1500));
+  }
+} {0 4 3}
+
+# Note the new optimization that when pulling the very last page off of the
+# freelist we do not read the content of that page.
+#
+do_test pageropt-2.4 {
+  pagercount_sql {
+    INSERT INTO t1 VALUES(randomblob(1500));
+  }
+} {0 5 3}
+
+# Appending a large quantity of data does not involve writing much
+# to the journal file.
+#
+do_test pageropt-3.1 {
+  pagercount_sql {
+    INSERT INTO t2 SELECT * FROM t1;
+  }
+} {1 7 2}
+
+# Once again, we do not need to read the last page of an overflow chain
+# while deleting.
+#
+do_test pageropt-3.2 {
+  pagercount_sql {
+    DROP TABLE t2;
+  }
+} {0 2 3}
+do_test pageropt-3.3 {
+  pagercount_sql {
+    DELETE FROM t1;
+  }
+} {0 3 3}
+
+# There are now 11 pages on the freelist.  Move them all into an
+# overflow chain by inserting a single large record.  Starting from
+# a cold cache, only page 1, the root page of table t1, and the trunk
+# of the freelist need to be read (3 pages).  And only those three
+# pages need to be journalled.  But 13 pages need to be written:
+# page1, the root page of table t1, and an 11 page overflow chain.
+#
+do_test pageropt-4.1 {
+  db close
+  sqlite3 db test.db
+  pagercount_sql {
+    INSERT INTO t1 VALUES(randomblob(11300))
+  }
+} {3 13 3}
+
+# Now we delete that big entries starting from a cold cache and an
+# empty freelist.  The first 10 of the 11 pages overflow chain have
+# to be read, together with page1 and the root of the t1 table.  12
+# reads total.  But only page1, the t1 root, and the trunk of the
+# freelist need to be journalled and written back.
+#
+do_test pageropt-4.2 {
+  db close
+  sqlite3 db test.db
+  pagercount_sql {
+    DELETE FROM t1
+  }
+} {12 3 3}
+
+sqlite3_soft_heap_limit $cmdlinearg(soft-heap-limit)
+catch {db2 close}
+finish_test
diff --git a/test/pagesize.test b/test/pagesize.test
new file mode 100644
index 0000000000000000000000000000000000000000..88005300124d71f120b0cbe678c22dcbd237fbd6
--- /dev/null
+++ b/test/pagesize.test
@@ -0,0 +1,237 @@
+# 2004 September 2
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+# This file implements tests for the page_size PRAGMA.
+#
+# $Id: pagesize.test,v 1.13 2008/08/26 21:07:27 drh Exp $
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# This test script depends entirely on "PRAGMA page_size". So if this
+# pragma is not available, omit the whole file.
+ifcapable !pager_pragmas {
+  finish_test
+  return
+}
+
+do_test pagesize-1.1 {
+  execsql {PRAGMA page_size}
+} 1024
+ifcapable {explain} {
+  do_test pagesize-1.2 {
+    catch {execsql {EXPLAIN PRAGMA page_size}}
+  } 0
+}
+do_test pagesize-1.3 {
+  execsql {
+    CREATE TABLE t1(a);
+    PRAGMA page_size=2048;
+    PRAGMA page_size;
+  }
+} 1024
+
+do_test pagesize-1.4 {
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+  execsql {
+    PRAGMA page_size=511;
+    PRAGMA page_size;
+  }
+} 1024
+do_test pagesize-1.5 {
+  execsql {
+    PRAGMA page_size=512;
+    PRAGMA page_size;
+  }
+} 512
+if {![info exists SQLITE_MAX_PAGE_SIZE] || $SQLITE_MAX_PAGE_SIZE>=8192} {
+  do_test pagesize-1.6 {
+    execsql {
+      PRAGMA page_size=8192;
+      PRAGMA page_size;
+    }
+  } 8192
+  do_test pagesize-1.7 {
+    execsql {
+      PRAGMA page_size=65537;
+      PRAGMA page_size;
+    }
+  } 8192
+  do_test pagesize-1.8 {
+    execsql {
+      PRAGMA page_size=1234;
+      PRAGMA page_size
+    }
+  } 8192
+}  
+foreach PGSZ {512 2048 4096 8192} {
+  if {[info exists SQLITE_MAX_PAGE_SIZE]
+           && $SQLITE_MAX_PAGE_SIZE<$PGSZ} continue
+  ifcapable memorydb {
+    do_test pagesize-2.$PGSZ.0.1 {
+      db close
+      sqlite3 db :memory:
+      execsql "PRAGMA page_size=$PGSZ;"
+      execsql {PRAGMA page_size}
+    } $PGSZ
+    do_test pagesize-2.$PGSZ.0.2 {
+      execsql {CREATE TABLE t1(x UNIQUE, y UNIQUE, z UNIQUE)}
+      execsql {PRAGMA page_size}
+    } $PGSZ
+    do_test pagesize-2.$PGSZ.0.3 {
+      execsql {
+        INSERT INTO t1 VALUES(1,2,3);
+        INSERT INTO t1 VALUES(2,3,4);
+        SELECT * FROM t1;
+      }
+    } {1 2 3 2 3 4}
+  }
+  do_test pagesize-2.$PGSZ.1 {
+    db close
+    forcedelete test.db
+    sqlite3 db test.db
+    execsql "PRAGMA page_size=$PGSZ"
+    execsql {
+      CREATE TABLE t1(x);
+      PRAGMA page_size;
+    }
+  } $PGSZ
+  do_test pagesize-2.$PGSZ.2 {
+    db close
+    sqlite3 db test.db
+    execsql {
+      PRAGMA page_size
+    }
+  } $PGSZ
+  do_test pagesize-2.$PGSZ.3 {
+    file size test.db
+  } [expr {$PGSZ*($AUTOVACUUM?3:2)}]
+  ifcapable {vacuum} {
+    do_test pagesize-2.$PGSZ.4 {
+      execsql {VACUUM}
+    } {}
+  }
+  integrity_check pagesize-2.$PGSZ.5
+  do_test pagesize-2.$PGSZ.6 {
+    db close
+    sqlite3 db test.db
+    execsql {PRAGMA page_size}
+  } $PGSZ
+  do_test pagesize-2.$PGSZ.7 {
+    execsql {
+      INSERT INTO t1 VALUES(randstr(10,9000));
+      INSERT INTO t1 VALUES(randstr(10,9000));
+      INSERT INTO t1 VALUES(randstr(10,9000));
+      BEGIN;
+      INSERT INTO t1 SELECT x||x FROM t1;
+      INSERT INTO t1 SELECT x||x FROM t1;
+      INSERT INTO t1 SELECT x||x FROM t1;
+      INSERT INTO t1 SELECT x||x FROM t1;
+      SELECT count(*) FROM t1;
+    }
+  } 48
+  do_test pagesize-2.$PGSZ.8 {
+    execsql {
+      ROLLBACK;
+      SELECT count(*) FROM t1;
+    }
+  } 3
+  integrity_check pagesize-2.$PGSZ.9
+  do_test pagesize-2.$PGSZ.10 {
+    db close
+    sqlite3 db test.db
+    execsql {PRAGMA page_size}
+  } $PGSZ
+  do_test pagesize-2.$PGSZ.11 {
+    execsql {
+      INSERT INTO t1 SELECT x||x FROM t1;
+      INSERT INTO t1 SELECT x||x FROM t1;
+      INSERT INTO t1 SELECT x||x FROM t1;
+      INSERT INTO t1 SELECT x||x FROM t1;
+      INSERT INTO t1 SELECT x||x FROM t1;
+      INSERT INTO t1 SELECT x||x FROM t1;
+      SELECT count(*) FROM t1;
+    }
+  } 192
+  do_test pagesize-2.$PGSZ.12 {
+    execsql {
+      BEGIN;
+      DELETE FROM t1 WHERE rowid%5!=0;
+      SELECT count(*) FROM t1;
+    }
+  } 38
+  do_test pagesize-2.$PGSZ.13 {
+    execsql {
+      ROLLBACK;
+      SELECT count(*) FROM t1;
+    }
+  } 192
+  integrity_check pagesize-2.$PGSZ.14
+  do_test pagesize-2.$PGSZ.15 {
+    execsql {DELETE FROM t1 WHERE rowid%5!=0}
+    ifcapable {vacuum} {execsql VACUUM}
+    execsql {SELECT count(*) FROM t1}
+  } 38
+  do_test pagesize-2.$PGSZ.16 {
+    execsql {DROP TABLE t1}
+    ifcapable {vacuum} {execsql VACUUM}
+  } {}
+  integrity_check pagesize-2.$PGSZ.17
+
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+  do_test pagesize-2.$PGSZ.30 {
+    execsql "
+      CREATE TABLE t1(x);
+      PRAGMA temp.page_size=$PGSZ;
+      CREATE TEMP TABLE t2(y);
+      PRAGMA main.page_size;
+      PRAGMA temp.page_size;
+    "
+  } [list 1024 $PGSZ]
+
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+  do_test pagesize-2.$PGSZ.40 {
+    execsql "
+      PRAGMA page_size=$PGSZ;
+      CREATE TABLE t1(x);
+      CREATE TEMP TABLE t2(y);
+      PRAGMA main.page_size;
+      PRAGMA temp.page_size;
+    "
+  } [list $PGSZ $PGSZ]
+}
+
+reset_db
+do_execsql_test pagesize-3.1 {
+  BEGIN;
+  SELECT * FROM sqlite_master;
+  PRAGMA page_size=2048;
+  PRAGMA main.page_size;
+} {1024}
+do_execsql_test pagesize-3.2 {
+  CREATE TABLE t1(x);
+  COMMIT;
+}
+do_execsql_test pagesize-3.3 {
+  BEGIN;
+    PRAGMA page_size = 2048;
+  COMMIT;
+  PRAGMA main.page_size;
+} {1024}
+
+finish_test
diff --git a/test/parser1.test b/test/parser1.test
new file mode 100644
index 0000000000000000000000000000000000000000..ad95b490910da7bf04c0d407caa5248ad0ec01e2
--- /dev/null
+++ b/test/parser1.test
@@ -0,0 +1,103 @@
+# 2014-08-24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+# The focus of this script is testing details of the SQL language parser.
+# 
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_catchsql_test parser1-1.1 {
+  CREATE TABLE t1(
+    a TEXT PRIMARY KEY,
+    b TEXT,
+    FOREIGN KEY(b COLLATE nocase DESC) REFERENCES t1(a COLLATE binary ASC)
+  );
+} {1 {syntax error after column name "b"}}
+
+
+# Verify that a legacy schema in the sqlite_master file is allowed to have
+# COLLATE, ASC, and DESC keywords on the id list of a FK constraint, and that
+# those keywords are silently ignored.
+#
+sqlite3_db_config db DEFENSIVE 0
+do_execsql_test parser1-1.2 {
+  CREATE TABLE t1(
+    a TEXT PRIMARY KEY,
+    b TEXT,
+    FOREIGN KEY(b) REFERENCES t1(a)
+  );
+  INSERT INTO t1 VALUES('abc',NULL),('xyz','abc');
+  PRAGMA writable_schema=on;
+  UPDATE sqlite_master SET sql='CREATE TABLE t1(
+    a TEXT PRIMARY KEY,
+    b TEXT,
+    FOREIGN KEY(b COLLATE nocase) REFERENCES t1(a)
+  )' WHERE name='t1';
+  SELECT name FROM sqlite_master WHERE sql LIKE '%collate%';
+} {t1}
+sqlite3 db2 test.db
+do_test parser1-1.3 {
+  sqlite3 db2 test.db
+  db2 eval {SELECT * FROM t1 ORDER BY 1}
+} {abc {} xyz abc}
+db2 close
+
+do_execsql_test parser1-1.4 {
+  UPDATE sqlite_master SET sql='CREATE TABLE t1(
+    a TEXT PRIMARY KEY,
+    b TEXT,
+    FOREIGN KEY(b ASC) REFERENCES t1(a)
+  )' WHERE name='t1';
+  SELECT name FROM sqlite_master WHERE sql LIKE '%ASC%';
+} {t1}
+sqlite3 db2 test.db
+do_test parser1-1.5 {
+  sqlite3 db2 test.db
+  db2 eval {SELECT * FROM t1 ORDER BY 1}
+} {abc {} xyz abc}
+db2 close
+
+do_catchsql_test parser1-2.1 {
+  WITH RECURSIVE
+    c(x COLLATE binary) AS (VALUES(1) UNION SELECT x+1 FROM c WHERE x<5)
+  SELECT x FROM c;
+} {1 {syntax error after column name "x"}}
+do_catchsql_test parser1-2.2 {
+  WITH RECURSIVE
+    c(x ASC) AS (VALUES(1) UNION SELECT x+1 FROM c WHERE x<5)
+  SELECT x FROM c;
+} {1 {syntax error after column name "x"}}
+
+# Verify that the comma between multiple table constraints is
+# optional.
+#
+# The missing comma is technically a syntax error.  But we have to support
+# it because there might be legacy databases that omit the commas in their
+# sqlite_master tables.
+#
+do_execsql_test parser1-3.1 {
+  CREATE TABLE t300(id INTEGER PRIMARY KEY);
+  CREATE TABLE t301(
+    id INTEGER PRIMARY KEY,
+    c1 INTEGER NOT NULL,
+    c2 INTEGER NOT NULL,
+    c3 BOOLEAN NOT NULL DEFAULT 0,
+    FOREIGN KEY(c1) REFERENCES t300(id) ON DELETE CASCADE ON UPDATE RESTRICT
+        /* no comma */
+    FOREIGN KEY(c2) REFERENCES t300(id) ON DELETE CASCADE ON UPDATE RESTRICT
+        /* no comma */
+    UNIQUE(c1, c2)
+  );
+  PRAGMA foreign_key_list(t301);
+} {0 0 t300 c2 id RESTRICT CASCADE NONE 1 0 t300 c1 id RESTRICT CASCADE NONE}
+
+finish_test
diff --git a/test/pcache.test b/test/pcache.test
new file mode 100644
index 0000000000000000000000000000000000000000..5d9d93edb77eb143631ec100e62b1c79dbacdeeb
--- /dev/null
+++ b/test/pcache.test
@@ -0,0 +1,182 @@
+# 2008 August 29
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file is focused on testing the pcache module.
+#
+# $Id: pcache.test,v 1.5 2009/05/08 06:52:48 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Do not use a codec for tests in this file, as the database file is
+# manipulated directly using tcl scripts (using the [hexio_write] command).
+#
+do_not_use_codec
+
+# Only works with a mode-2 pcache where all pcaches share a single set
+# of pages.
+#
+ifcapable {!memorymanage && threadsafe} {
+  finish_test
+  return
+}
+
+# The pcache module limits the number of pages available to purgeable
+# caches to the sum of the 'cache_size' values for the set of open
+# caches. This block of tests, pcache-1.*, test that the library behaves
+# corrctly when it is forced to exceed this limit.
+#
+do_test pcache-1.1 {
+  db close
+  pcache_stats
+} {current 0 max 0 min 0 recyclable 0}
+
+do_test pcache-1.2 {
+  sqlite3 db test.db
+  execsql {
+    PRAGMA cache_size=12;
+    PRAGMA auto_vacuum=0;
+    PRAGMA mmap_size=0;
+  }
+  pcache_stats
+} {current 1 max 12 min 10 recyclable 1}
+
+do_test pcache-1.3 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t1(a, b, c);
+    CREATE TABLE t2(a, b, c);
+    CREATE TABLE t3(a, b, c);
+    CREATE TABLE t4(a, b, c);
+    CREATE TABLE t5(a, b, c);
+  }
+  pcache_stats
+} {current 6 max 12 min 10 recyclable 0}
+
+do_test pcache-1.4 {
+  execsql {
+    CREATE TABLE t6(a, b, c);
+    CREATE TABLE t7(a, b, c);
+    CREATE TABLE t8(a, b, c);
+    CREATE TABLE t9(a, b, c);
+  }
+  pcache_stats
+} {current 10 max 12 min 10 recyclable 0}
+
+do_test pcache-1.5 {
+  sqlite3 db2 test.db
+  execsql "PRAGMA cache_size; PRAGMA cache_size=10" db2
+  pcache_stats
+} {current 11 max 22 min 20 recyclable 1}
+
+do_test pcache-1.6.1 {
+  execsql {
+    BEGIN;
+    SELECT * FROM sqlite_master;
+  } db2
+  pcache_stats
+} {current 11 max 22 min 20 recyclable 0}
+
+# At this point connection db2 has a read lock on the database file and a 
+# single pinned page in its cache. Connection [db] is holding 10 dirty 
+# pages. It cannot recycle them because of the read lock held by db2.
+#
+do_test pcache-1.6.2 {
+  execsql {
+    CREATE INDEX i1 ON t1(a, b);
+    CREATE INDEX i2 ON t2(a, b);
+    CREATE INDEX i3 ON t3(a, b);
+    CREATE INDEX i4 ON t4(a, b);
+    CREATE INDEX i5 ON t5(a, b);
+    CREATE INDEX i6 ON t6(a, b);
+    CREATE INDEX i7 ON t7(a, b);
+    CREATE INDEX i8 ON t8(a, b);
+    CREATE INDEX i9 ON t9(a, b);
+    CREATE INDEX i10 ON t9(a, b);
+    CREATE INDEX i11 ON t9(a, b);
+  } 
+  pcache_stats
+} {current 23 max 22 min 20 recyclable 0}
+
+do_test pcache-1.7 {
+  execsql {
+    CREATE TABLE t10(a, b, c);
+  } 
+  pcache_stats
+} {current 24 max 22 min 20 recyclable 0}
+
+# Rolling back the transaction held by db2 at this point releases a pinned
+# page. Because the number of allocated pages is greater than the 
+# configured maximum, this page should be freed immediately instead of
+# recycled.
+#
+do_test pcache-1.8 {
+  execsql {ROLLBACK} db2
+  pcache_stats
+} {current 23 max 22 min 20 recyclable 0}
+
+do_test pcache-1.9 {
+  execsql COMMIT
+  pcache_stats
+} {current 22 max 22 min 20 recyclable 22}
+
+do_test pcache-1.10 {
+  db2 close
+  pcache_stats
+} {current 12 max 12 min 10 recyclable 12}
+
+do_test pcache-1.11 {
+  execsql { PRAGMA cache_size = 20 }
+  pcache_stats
+} {current 12 max 20 min 10 recyclable 12}
+
+do_test pcache-1.12 {
+  execsql { 
+    SELECT * FROM t1 ORDER BY a; SELECT * FROM t1;
+    SELECT * FROM t2 ORDER BY a; SELECT * FROM t2;
+    SELECT * FROM t3 ORDER BY a; SELECT * FROM t3;
+    SELECT * FROM t4 ORDER BY a; SELECT * FROM t4;
+    SELECT * FROM t5 ORDER BY a; SELECT * FROM t5;
+    SELECT * FROM t6 ORDER BY a; SELECT * FROM t6;
+    SELECT * FROM t7 ORDER BY a; SELECT * FROM t7;
+    SELECT * FROM t8 ORDER BY a; SELECT * FROM t8;
+    SELECT * FROM t9 ORDER BY a; SELECT * FROM t9;
+  }
+  pcache_stats
+} {current 19 max 20 min 10 recyclable 19}
+
+do_test pcache-1.13 {
+  execsql { PRAGMA cache_size = 15 }
+  pcache_stats
+} {current 15 max 15 min 10 recyclable 15}
+
+do_test pcache-1.14 {
+  hexio_write test.db 24 [hexio_render_int32 1000]
+  execsql { SELECT * FROM sqlite_master }
+  pcache_stats
+} {current 2 max 15 min 10 recyclable 2}
+
+do_test pcache-1.15 {
+  execsql { 
+    SELECT * FROM t1 ORDER BY a; SELECT * FROM t1;
+    SELECT * FROM t2 ORDER BY a; SELECT * FROM t2;
+    SELECT * FROM t3 ORDER BY a; SELECT * FROM t3;
+    SELECT * FROM t4 ORDER BY a; SELECT * FROM t4;
+    SELECT * FROM t5 ORDER BY a; SELECT * FROM t5;
+    SELECT * FROM t6 ORDER BY a; SELECT * FROM t6;
+    SELECT * FROM t7 ORDER BY a; SELECT * FROM t7;
+    SELECT * FROM t8 ORDER BY a; SELECT * FROM t8;
+    SELECT * FROM t9 ORDER BY a; SELECT * FROM t9;
+  }
+  pcache_stats
+} {current 14 max 15 min 10 recyclable 14}
+
+finish_test
diff --git a/test/pcache2.test b/test/pcache2.test
new file mode 100644
index 0000000000000000000000000000000000000000..a0d7496c865de19801257b455dd1f5bee20cf681
--- /dev/null
+++ b/test/pcache2.test
@@ -0,0 +1,84 @@
+# 2008 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file is focused on testing the pcache module.
+#
+# $Id: pcache2.test,v 1.5 2009/07/18 14:36:24 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+test_set_config_pagecache 0 0
+
+# Set up a pcache memory pool so that we can easily track how many
+# pages are being used for cache.
+#
+do_test pcache2-1.1 {
+  db close
+  sqlite3_reset_auto_extension
+  sqlite3_shutdown
+  sqlite3_config_pagecache 6000 100
+  sqlite3_config singlethread
+  sqlite3_initialize
+  autoinstall_test_functions
+  sqlite3_status SQLITE_STATUS_PAGECACHE_USED 1
+  sqlite3_status SQLITE_STATUS_PAGECACHE_USED 0
+} {0 0 0}
+
+# Open up two database connections to separate files.
+#
+do_test pcache2-1.2 {
+  forcedelete test.db test.db-journal
+  sqlite3 db test.db
+  db eval {PRAGMA cache_size=10; SELECT 1 FROM sqlite_master;}
+  lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_USED 0] 1
+} {2}
+do_test pcache2-1.3 {
+  forcedelete test2.db test2.db-journal
+  sqlite3 db2 test2.db
+  db2 eval {PRAGMA cache_size=50; SELECT 1 FROM sqlite_master;}
+  lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_USED 0] 1
+} {4}
+
+
+# Make lots of changes on the first connection.  Verify that the
+# page cache usage does not grow to consume the page space set aside
+# for the second connection.
+#
+do_test pcache2-1.4 {
+  db eval {
+     CREATE TABLE t1(a,b);
+     CREATE TABLE t2(x,y);
+     INSERT INTO t1 VALUES(1, zeroblob(800));
+     INSERT INTO t1 VALUES(2, zeroblob(800));
+     INSERT INTO t2 SELECT * FROM t1;
+     INSERT INTO t1 SELECT x+2, y FROM t2;
+     INSERT INTO t2 SELECT a+10, b FROM t1;
+     INSERT INTO t1 SELECT x+10, y FROM t2;
+     INSERT INTO t2 SELECT a+100, b FROM t1;
+     INSERT INTO t1 SELECT x+100, y FROM t2;
+     INSERT INTO t2 SELECT a+1000, b FROM t1;
+     INSERT INTO t1 SELECT x+1000, y FROM t2;
+  }
+  sqlite3_status SQLITE_STATUS_PAGECACHE_USED 0
+} {0 13 13}
+
+db close
+catch {db2 close}
+sqlite3_reset_auto_extension
+sqlite3_shutdown
+sqlite3_config_pagecache 0 0
+sqlite3_config serialized
+sqlite3_initialize
+autoinstall_test_functions
+
+test_restore_config_pagecache
+finish_test
diff --git a/test/pendingrace.test b/test/pendingrace.test
new file mode 100644
index 0000000000000000000000000000000000000000..80160149a3dcfa8530229008c89f561a673137b3
--- /dev/null
+++ b/test/pendingrace.test
@@ -0,0 +1,123 @@
+# 2023 January 31
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix pendingrace
+
+# This test file tests that a race condition surrounding hot-journal
+# rollback that once existed has been resolved. The problem was that
+# if, when attempting to upgrade from a SHARED to EXCLUSIVE lock in
+# order to roll back a hot journal, a connection failed to take the
+# lock, the file-descriptor was left holding a PENDING lock for 
+# a very short amount of time. In a multi-threaded deployment, this
+# could allow a second connection to read the database without rolling
+# back the hot journal.
+#
+
+testvfs tvfs 
+db close
+sqlite3 db test.db -vfs tvfs
+
+# Create a 20 page database using connection [db]. Connection [db] uses
+# Tcl VFS wrapper "tvfs", but it is configured to do straight pass-through
+# for now.
+#
+do_execsql_test 1.0 {
+  PRAGMA cache_size = 5;
+  CREATE TABLE t1(a, b);
+  CREATE INDEX i1 ON t1(a, b);
+  WITH s(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<10
+  )
+  INSERT INTO t1 SELECT hex(randomblob(100)), hex(randomblob(100)) FROM s;
+} {}
+do_test 1.1a {
+  set nPg [db one { PRAGMA page_count }]
+  expr ($nPg==20 || $nPg==21)
+} 1
+
+# Simulate a crash in another process. This leaves the db with a hot-journal.
+# Without the journal the db is corrupt.
+#
+sqlite3 db2 test.db
+do_execsql_test -db db2 1.1 {
+  PRAGMA cache_size = 5;
+  BEGIN;
+    UPDATE t1 SET b=hex(randomblob(100));
+}
+db_save
+db2 close
+proc my_db_restore {} {
+  forcecopy sv_test.db-journal test.db-journal
+
+  set fd1 [open sv_test.db r]
+  fconfigure $fd1 -translation binary
+  set data [read $fd1]
+  close $fd1
+
+  set fd1 [open test.db w]
+  fconfigure $fd1 -translation binary
+  puts -nonewline $fd1 $data
+  close $fd1
+}
+my_db_restore
+do_test 1.2 {
+  file exists test.db-journal
+} {1}
+
+# Set up connection [db2] to use Tcl VFS wrapper [tvfs2]. Which is configured
+# so that the first call to xUnlock() fails. And then all VFS calls thereafter
+# fail as well.
+#
+testvfs tvfs2
+tvfs2 filter xUnlock
+tvfs2 script xUnlock
+set ::seen_unlock 0
+proc xUnlock {args} {
+  if {$::seen_unlock==0} {
+    set ::seen_unlock 1
+    tvfs2 ioerr 1 1
+    tvfs2 filter {xLock xUnlock}
+  }
+  return ""
+}
+sqlite3 db2 test.db -vfs tvfs2
+
+# Configure [tvfs] (used by [db]) so that within the first call to xAccess,
+# [db2] attempts to read the db. This causes [db2] to fail to upgrade to
+# EXCLUSIVE, leaving it with a PENDING lock. Which it holds on to, 
+# as the xUnlock() and all subsequent VFS calls fail.
+#
+tvfs filter xAccess
+tvfs script xAccess
+set ::seen_access 0
+proc xAccess {args} {
+  if {$::seen_access==0} {
+    set ::seen_access 1
+    catch { db2 eval { SELECT count(*)+0 FROM t1 } }
+    breakpoint
+  }
+  return ""
+}
+
+# Run an integrity check using [db].
+do_catchsql_test 1.3 {
+  PRAGMA integrity_check
+} {1 {database is locked}}
+
+db close
+db2 close
+tvfs delete
+tvfs2 delete
+
+finish_test
diff --git a/test/percentile.test b/test/percentile.test
new file mode 100644
index 0000000000000000000000000000000000000000..a6a29da34ede1c52b32d3b98b82a11c75fe8b25f
--- /dev/null
+++ b/test/percentile.test
@@ -0,0 +1,596 @@
+# 2013-05-28
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is percentile.c extension.  This also tests
+# the SQLITE_ENABLE_ORDERED_SET_AGGREGATES compile-time option.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Basic test of the percentile() function.
+#
+do_test percentile-1.0 {
+  load_static_extension db percentile
+  execsql {
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(1),(4),(6),(7),(8),(9),(11),(11),(11);
+  }
+  execsql {SELECT percentile(x,0) FROM t1}
+} {1.0}
+foreach {in out disc} {
+  100    11.0  11.0
+   50     8.0   8.0
+   12.5   4.0   4.0
+   15     4.4   4.0
+   20     5.2   4.0
+   80    11.0  11.0
+   89    11.0  11.0
+} {
+  do_test percentile-1.1.$in.1 {
+    execsql {SELECT percentile(x,$in) FROM t1}
+  } $out
+  do_test percentile-1.1.$in.2 {
+    execsql {SELECT percentile_cont(x,$in*0.01) FROM t1}
+  } $out
+  do_test percentile-1.1.$in.3 {
+    execsql {SELECT percentile_disc(x,$in*0.01) FROM t1}
+  } $disc
+  if {$in==50} {
+    do_test percentile-1.1.$in.4 {
+      execsql {SELECT median(x) FROM t1}
+    } $out
+  }
+  ifcapable ordered_set_aggregates {
+    do_test percentile-1.1.$in.5 {
+      execsql {SELECT percentile($in)WITHIN GROUP(ORDER BY x) FROM t1}
+    } $out
+    do_test percentile-1.1.$in.6 {
+      execsql {SELECT percentile_cont($in*0.01) WITHIN GROUP(ORDER BY x)
+                 FROM t1}
+    } $out
+    do_test percentile-1.1.$in.7 {
+      execsql {SELECT percentile_disc($in*0.01) WITHIN GROUP(ORDER BY x)
+                 FROM t1}
+    } $disc
+    if {$in==50} {
+      do_test percentile-1.1.$in.8 {
+        execsql {SELECT median() WITHIN GROUP (ORDER BY x) FROM t1}
+      } $out
+    }
+  }
+}
+do_execsql_test percentile-1.1.median {
+  SELECT median(x) FROM t1;
+} 8.0
+ifcapable ordered_set_aggregates {
+  do_execsql_test percentile-1.1.median {
+    SELECT median() WITHIN GROUP (ORDER BY x) FROM t1;
+  } 8.0
+  do_execsql_test percentile-1.1.distinct.1 {
+    SELECT median(DISTINCT x) FROM t1;
+  } 7.0
+  do_catchsql_test percentile-1.1.distinct.2 {
+    SELECT percentile(DISTINCT 50) WITHIN GROUP (ORDER BY x) FROM t1;
+  } {1 {DISTINCT not allowed on ordered-set aggregate percentile()}}
+} else {
+  do_catchsql_test percentile-1.1.median {
+    SELECT median() WITHIN GROUP (ORDER BY x) FROM t1;
+  } {1 {near "(": syntax error}}
+}
+
+# Add some NULL values.
+#
+do_test percentile-1.2 {
+  execsql {INSERT INTO t1 VALUES(NULL),(NULL);}
+} {}
+foreach {in out disc} {
+  100    11.0  11.0
+   50     8.0   8.0
+   12.5   4.0   4.0
+   15     4.4   4.0
+   20     5.2   4.0
+   80    11.0  11.0
+   89    11.0  11.0
+} {
+  do_test percentile-1.3.$in.1 {
+    execsql {SELECT percentile(x,$in) FROM t1}
+  } $out
+  do_test percentile-1.3.$in.2 {
+    execsql {SELECT percentile_cont(x,$in*0.01) FROM t1}
+  } $out
+  do_test percentile-1.3.$in.3 {
+    execsql {SELECT percentile_disc(x,$in*0.01) FROM t1}
+  } $disc
+  if {$in==50} {
+    do_test percentile-1.3.$in.4 {
+      execsql {SELECT median(x) FROM t1}
+    } $out
+  }
+  ifcapable ordered_set_aggregates {
+    do_test percentile-1.3.$in.5 {
+      execsql {SELECT percentile($in)WITHIN GROUP(ORDER BY x) FROM t1}
+    } $out
+    do_test percentile-1.3.$in.6 {
+      execsql {SELECT percentile_cont($in*0.01) WITHIN GROUP(ORDER BY x)
+                 FROM t1}
+    } $out
+    do_test percentile-1.3.$in.7 {
+      execsql {SELECT percentile_disc($in*0.01) WITHIN GROUP(ORDER BY x)
+                 FROM t1}
+    } $disc
+    if {$in==50} {
+      do_test percentile-1.3.$in.8 {
+        execsql {SELECT median() WITHIN GROUP (ORDER BY x) FROM t1}
+      } $out
+    }
+  }
+}
+
+# The second argument to percentile can change some, but not much.
+#
+do_test percentile-1.4.1 {
+  catchsql {SELECT round(percentile(x, 15+0.000001*rowid),1) FROM t1}
+} {0 4.4}
+do_test percentile-1.4.2 {
+  catchsql {SELECT round(percentile_cont(x,(15+0.000001*rowid)*0.01),1) FROM t1}
+} {0 4.4}
+do_test percentile-1.4.3 {
+  catchsql {SELECT percentile_disc(x, (15+0.000001*rowid)*0.01) FROM t1}
+} {0 4.0}
+do_test percentile-1.5.1 {
+  catchsql {SELECT percentile(x, 15+0.1*rowid) FROM t1}
+} {1 {the fraction argument to percentile() is not the same for all input rows}}
+do_test percentile-1.5.2 {
+  catchsql {SELECT percentile_cont(x, (15+0.1*rowid)*0.01) FROM t1}
+} {1 {the fraction argument to percentile_cont() is not the same for all input rows}}
+do_test percentile-1.5.3 {
+  catchsql {SELECT percentile_disc(x, (15+0.1*rowid)*0.01) FROM t1}
+} {1 {the fraction argument to percentile_disc() is not the same for all input rows}}
+
+# Input values in a random order
+#
+do_test percentile-1.6 {
+  execsql {
+    CREATE TABLE t2(x);
+    INSERT INTO t2 SELECT x+0.0 FROM t1 ORDER BY random();
+  }
+} {}
+foreach {in out disc} {
+  100    11.0  11.0
+   50     8.0   8.0
+   12.5   4.0   4.0
+   15     4.4   4.0
+   20     5.2   4.0
+   80    11.0  11.0
+   89    11.0  11.0
+} {
+  do_test percentile-1.7.$in.1 {
+    execsql {SELECT percentile(x,$in) FROM t2}
+  } $out
+  do_test percentile-1.7.$in.2 {
+    execsql {SELECT percentile_cont(x,$in*0.01) FROM t2}
+  } $out
+  do_test percentile-1.7.$in.3 {
+    execsql {SELECT percentile_disc(x,$in*0.01) FROM t2}
+  } $disc
+  if {$in==50} {
+    do_test percentile-1.7.$in.4 {
+      execsql {SELECT median(x) FROM t2}
+    } $out
+  }
+  ifcapable ordered_set_aggregates {
+    do_test percentile-1.7.$in.5 {
+      execsql {SELECT percentile($in)WITHIN GROUP(ORDER BY x) FROM t2}
+    } $out
+    do_test percentile-1.7.$in.6 {
+      execsql {SELECT percentile_cont($in*0.01) WITHIN GROUP(ORDER BY x)
+                 FROM t2}
+    } $out
+    do_test percentile-1.7.$in.7 {
+      execsql {SELECT percentile_disc($in*0.01) WITHIN GROUP(ORDER BY x)
+                 FROM t2}
+    } $disc
+    if {$in==50} {
+      do_test percentile-1.7.$in.8 {
+        execsql {SELECT median() WITHIN GROUP (ORDER BY x) FROM t2}
+      } $out
+    }
+  }
+}
+
+# Wrong number of arguments
+#
+do_test percentile-1.8.1 {
+  catchsql {SELECT percentile(x,0,1) FROM t1}
+} {1 {wrong number of arguments to function percentile()}}
+do_test percentile-1.8.2 {
+  catchsql {SELECT percentile_cont(x,0,1) FROM t1}
+} {1 {wrong number of arguments to function percentile_cont()}}
+do_test percentile-1.8.3 {
+  catchsql {SELECT percentile_disc(x,0,1) FROM t1}
+} {1 {wrong number of arguments to function percentile_disc()}}
+do_test percentile-1.8.4 {
+  catchsql {SELECT median(x,0) FROM t1}
+} {1 {wrong number of arguments to function median()}}
+ifcapable ordered_set_aggregates {
+  do_test percentile-1.8.5 {
+    catchsql {SELECT percentile(0,1) WITHIN GROUP(ORDER BY x) FROM t1}
+  } {1 {wrong number of arguments to function percentile()}}
+  do_test percentile-1.8.2 {
+    catchsql {SELECT percentile_cont(0,1)WITHIN GROUP (ORDER BY x) FROM t1}
+  } {1 {wrong number of arguments to function percentile_cont()}}
+  do_test percentile-1.8.3 {
+    catchsql {SELECT percentile_disc(0,1)WITHIN GROUP (ORDER BY x) FROM t1}
+  } {1 {wrong number of arguments to function percentile_disc()}}
+  do_test percentile-1.8.4 {
+    catchsql {SELECT median(x) WITHIN GROUP (ORDER BY x) FROM t1}
+  } {1 {wrong number of arguments to function median()}}
+}
+do_test percentile-1.9.1 {
+  catchsql {SELECT percentile(x) FROM t1}
+} {1 {wrong number of arguments to function percentile()}}
+do_test percentile-1.9.2 {
+  catchsql {SELECT percentile_cont(x) FROM t1}
+} {1 {wrong number of arguments to function percentile_cont()}}
+do_test percentile-1.9.3 {
+  catchsql {SELECT percentile_disc(x) FROM t1}
+} {1 {wrong number of arguments to function percentile_disc()}}
+do_test percentile-1.9.4 {
+  catchsql {SELECT median() FROM t1}
+} {1 {wrong number of arguments to function median()}}
+ifcapable ordered_set_aggregates {
+  do_test percentile-1.9.5 {
+    catchsql {SELECT percentile() WITHIN GROUP(ORDER BY x) FROM t1}
+  } {1 {wrong number of arguments to function percentile()}}
+  do_test percentile-1.9.6 {
+    catchsql {SELECT percentile_cont()WITHIN GROUP (ORDER BY x) FROM t1}
+  } {1 {wrong number of arguments to function percentile_cont()}}
+  do_test percentile-1.9.7 {
+    catchsql {SELECT percentile_disc()WITHIN GROUP (ORDER BY x) FROM t1}
+  } {1 {wrong number of arguments to function percentile_disc()}}
+}
+
+# Second argument must be numeric
+#
+do_test percentile-1.10 {
+  catchsql {SELECT percentile(x,null) FROM t1}
+} {1 {the fraction argument to percentile() is not between 0.0 and 100.0}}
+do_test percentile-1.11 {
+  catchsql {SELECT percentile(x,'fifty') FROM t1}
+} {1 {the fraction argument to percentile() is not between 0.0 and 100.0}}
+do_test percentile-1.12 {
+  catchsql {SELECT percentile(x,x'3530') FROM t1}
+} {1 {the fraction argument to percentile() is not between 0.0 and 100.0}}
+
+# Second argument is out of range
+#
+do_test percentile-1.13 {
+  catchsql {SELECT percentile(x,-0.0000001) FROM t1}
+} {1 {the fraction argument to percentile() is not between 0.0 and 100.0}}
+do_test percentile-1.14 {
+  catchsql {SELECT percentile(x,100.0000001) FROM t1}
+} {1 {the fraction argument to percentile() is not between 0.0 and 100.0}}
+do_test percentile-1.14.2 {
+  catchsql {SELECT percentile_cont(x,1.0000001) FROM t1}
+} {1 {the fraction argument to percentile_cont() is not between 0.0 and 1.0}}
+do_test percentile-1.14.3 {
+  catchsql {SELECT percentile_disc(x,1.0000001) FROM t1}
+} {1 {the fraction argument to percentile_disc() is not between 0.0 and 1.0}}
+
+# First argument is not NULL and is not NUMERIC
+#
+do_test percentile-1.15.1 {
+  catchsql {
+    BEGIN;
+    UPDATE t1 SET x='50' WHERE x IS NULL;
+    SELECT percentile(x, 50) FROM t1;
+  }
+} {1 {input to percentile() is not numeric}}
+do_test percentile-1.15.2 {
+  catchsql {
+    SELECT percentile_cont(x, 0.50) FROM t1;
+  }
+} {1 {input to percentile_cont() is not numeric}}
+do_test percentile-1.15.3 {
+  catchsql {
+    SELECT percentile_disc(x, 0.50) FROM t1;
+  }
+} {1 {input to percentile_disc() is not numeric}}
+do_test percentile-1.15.4 {
+  catchsql {
+    SELECT median(x) FROM t1;
+  }
+} {1 {input to median() is not numeric}}
+do_test percentile-1.16 {
+  catchsql {
+    ROLLBACK;
+    BEGIN;
+    UPDATE t1 SET x=x'3530' WHERE x IS NULL;
+    SELECT percentile(x, 50) FROM t1;
+  }
+} {1 {input to percentile() is not numeric}}
+do_test percentile-1.17 {
+  catchsql {
+    ROLLBACK;
+    SELECT percentile(x, 50) FROM t1;
+  }
+} {0 8.0}
+
+# No non-NULL entries.
+#
+do_test percentile-1.18 {
+  execsql {
+    UPDATE t1 SET x=NULL;
+    SELECT ifnull(percentile(x, 50),'NULL') FROM t1
+  } 
+} {NULL}
+
+# Exactly one non-NULL entry
+#
+do_test percentile-1.19 {
+  execsql {
+    UPDATE t1 SET x=12345 WHERE rowid=5;
+    SELECT percentile(x, 0), percentile(x, 50), percentile(x,100) FROM t1
+  } 
+} {12345.0 12345.0 12345.0}
+
+# Infinity as an input
+#
+do_test percentile-1.20.1 {
+  catchsql {
+    DELETE FROM t1;
+    INSERT INTO t1 SELECT x+0.0 FROM t2;
+    UPDATE t1 SET x=1.0e300*1.0e300 WHERE rowid=5;
+    SELECT percentile(x,50) from t1;
+  }
+} {1 {Inf input to percentile()}}
+do_test percentile-1.20.2 {
+  catchsql {
+    SELECT percentile_cont(x,0.50) from t1;
+  }
+} {1 {Inf input to percentile_cont()}}
+do_test percentile-1.20.3 {
+  catchsql {
+    SELECT percentile_disc(x,0.50) from t1;
+  }
+} {1 {Inf input to percentile_disc()}}
+do_test percentile-1.20.4 {
+  catchsql {
+    SELECT median(x) from t1;
+  }
+} {1 {Inf input to median()}}
+ifcapable ordered_set_aggregates {
+  do_test percentile-1.20.5 {
+    catchsql {
+      SELECT percentile(50) WITHIN GROUP (ORDER BY x) from t1;
+    }
+  } {1 {Inf input to percentile()}}
+  do_test percentile-1.20.6 {
+    catchsql {
+      SELECT percentile_cont(0.50) WITHIN GROUP (ORDER BY x) from t1;
+    }
+  } {1 {Inf input to percentile_cont()}}
+  do_test percentile-1.20.7 {
+    catchsql {
+      SELECT percentile_disc(0.50) WITHIN GROUP(ORDER BY X) from t1;
+    }
+  } {1 {Inf input to percentile_disc()}}
+  do_test percentile-1.20.8 {
+    catchsql {
+      SELECT median() WITHIN GROUP (ORDER BY x) from t1;
+    }
+  } {1 {Inf input to median()}}
+}
+do_test percentile-1.21 {
+  catchsql {
+    UPDATE t1 SET x=-1.0e300*1.0e300 WHERE rowid=5;
+    SELECT percentile(x,50) from t1;
+  }
+} {1 {Inf input to percentile()}}
+
+# Million-row Inputs
+#
+ifcapable vtab {
+  do_test percentile-2.0 {
+    load_static_extension db wholenumber
+    execsql {
+      CREATE VIRTUAL TABLE nums USING wholenumber;
+      CREATE TABLE t3(x);
+      INSERT INTO t3 SELECT value-1 FROM nums WHERE value BETWEEN 1 AND 500000;
+      INSERT INTO t3 SELECT value*10 FROM nums
+                      WHERE value BETWEEN 500000 AND 999999;
+      SELECT count(*) FROM t3;
+    }
+  } {1000000}
+  foreach {in out} {
+      0          0.0
+    100    9999990.0
+     50    2749999.5
+     10      99999.9
+  } {
+    do_test percentile-2.1.$in {
+      execsql {
+        SELECT round(percentile(x, $in),1) from t3;
+      }
+    } $out
+  }
+}
+
+# median() as a window function.  (2024-08-31)
+#
+do_execsql_test percentile-3.0 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c, d);
+  INSERT INTO t1 VALUES (1, 'A', 'one',   8.4),
+                        (2, 'B', 'two',   7.1),
+                        (3, 'C', 'three', 5.9),
+                        (4, 'D', 'one',  11.0),
+                        (5, 'E', 'two',  12.5),
+                        (6, 'F', 'three', 0.0),
+                        (7, 'G', 'one',   2.7);
+}
+foreach {id oba expr} {
+  1 0 "median(d)"
+  2 0 "percentile(d,50)"
+  3 0 "percentile_cont(d,0.5)"
+  4 1 "median() WITHIN GROUP (ORDER BY d)"
+  5 1 "percentile(50) WITHIN GROUP (ORDER BY d)"
+  6 1 "percentile_cont(0.5) WITHIN GROUP (ORDER BY d)"
+} {
+  if {$oba} {
+    ifcapable !ordered_set_aggregates break
+  }
+  set sql "SELECT a, b, c, d, \
+                  group_concat(b,'.') OVER w1 AS 'elements', \
+                  $expr OVER w1 AS 'median' \
+            FROM t1 \
+          WINDOW w1 AS (ORDER BY c, a ROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING)"
+  do_execsql_test percentile-3.$id.1 $sql {
+    1  A  one    8.4   A.D       9.7   
+    4  D  one    11.0  A.D.G     8.4   
+    7  G  one    2.7   D.G.C     5.9   
+    3  C  three  5.9   G.C.F     2.7   
+    6  F  three  0.0   C.F.B     5.9   
+    2  B  two    7.1   F.B.E     7.1   
+    5  E  two    12.5  B.E       9.8   
+  }
+
+  set sql "SELECT a, b, c, d, \
+                  group_concat(b,'.') OVER w1 AS 'elements', \
+                  $expr OVER w1 AS 'median' \
+            FROM t1 \
+           WINDOW w1 AS (ORDER BY c, a \
+               ROWS BETWEEN UNBOUNDED PRECEDING AND 1 FOLLOWING)"
+  do_execsql_test percentile-3.$id.2 $sql {
+    1  A  one    8.4   A.D            9.7   
+    4  D  one    11.0  A.D.G          8.4   
+    7  G  one    2.7   A.D.G.C        7.15  
+    3  C  three  5.9   A.D.G.C.F      5.9   
+    6  F  three  0.0   A.D.G.C.F.B    6.5   
+    2  B  two    7.1   A.D.G.C.F.B.E  7.1   
+    5  E  two    12.5  A.D.G.C.F.B.E  7.1   
+  }
+
+  set sql "SELECT a, b, c, d, \
+                  group_concat(b,'.') OVER w1 AS 'elements', \
+                  $expr OVER w1 AS 'median' \
+            FROM t1 \
+           WINDOW w1 AS (ORDER BY c, a \
+               ROWS BETWEEN 1 PRECEDING AND UNBOUNDED FOLLOWING)"
+  do_execsql_test percentile-3.$id.3 $sql {
+    1  A  one    8.4   A.D.G.C.F.B.E  7.1   
+    4  D  one    11.0  A.D.G.C.F.B.E  7.1   
+    7  G  one    2.7   D.G.C.F.B.E    6.5   
+    3  C  three  5.9   G.C.F.B.E      5.9   
+    6  F  three  0.0   C.F.B.E        6.5   
+    2  B  two    7.1   F.B.E          7.1   
+    5  E  two    12.5  B.E            9.8   
+  }
+}
+
+# Test case adapted from examples shown at
+# https://database.guide/3-functions-to-calculate-the-median-in-sql/
+#
+do_execsql_test percential-4.0 {
+  CREATE TABLE products(
+    vendorId INT,
+    productId INTEGER PRIMARY KEY,
+    productName REAL,
+    price REAL
+  );
+  INSERT INTO products VALUES
+    (1001, 17,  'Left-handed screwdriver', 25.99),
+    (1001, 49,  'Right-handed screwdriver', 25.99),
+    (1001, 216, 'Long weight (blue)', 14.75),
+    (1001, 31,  'Long weight (green)', 11.99),
+    (1002, 37,  'Sledge hammer', 33.49),
+    (1003, 7,   'Chainsaw', 245.00),
+    (1003, 8,   'Straw dog box', 55.99),
+    (1003, 12,  'Hammock', 11.01),
+    (1004, 113, 'Teapot', 12.45),
+    (1004, 117, 'Bottomless coffee mug', 9.99);
+}
+do_execsql_test percentile-4.1 {
+  SELECT VendorId, ProductId, /* ProductName,*/ Price,
+         avg(price) OVER (PARTITION BY vendorId) AS "Average",
+         median(price) OVER (PARTITION BY vendorId) AS "Median"
+    FROM products
+   ORDER BY vendorId, productId;
+} {
+  1001      17         25.99  19.68    20.37 
+  1001      31         11.99  19.68    20.37 
+  1001      49         25.99  19.68    20.37 
+  1001      216        14.75  19.68    20.37 
+  1002      37         33.49  33.49    33.49 
+  1003      7          245.0  104.0    55.99 
+  1003      8          55.99  104.0    55.99 
+  1003      12         11.01  104.0    55.99 
+  1004      113        12.45  11.22    11.22 
+  1004      117        9.99   11.22    11.22 
+}
+do_execsql_test percentile-4.2 {
+  SELECT vendorId, median(price) FROM products
+   GROUP BY 1 ORDER BY 1;
+} {1001 20.37 1002 33.49 1003 55.99 1004 11.22}
+
+do_execsql_test percentile-5.0 {
+  CREATE TABLE user(name TEXT, class TEXT, cost REAL);
+  INSERT INTO user VALUES
+    ('Alice', 'Y',  3578.27),
+    ('Bob',   'X',  3399.99),
+    ('Cindy', 'Z',  699.10),
+    ('Dave',  'Y',  3078.27),
+    ('Emma',  'Z',  2319.99),
+    ('Fred',  'Y',  539.99),
+    ('Gina',  'X',  2320.49),
+    ('Hank',  'W',  24.99),
+    ('Irma',  'W',  24.99),
+    ('Jake',  'X',  2234.99),
+    ('Kim',   'Y',  4319.99),
+    ('Liam',  'X',  4968.59),
+    ('Mia',   'W',  59.53),
+    ('Nate',  'W',  23.50);
+}
+do_execsql_test percentile-5.1 {
+  SELECT name, class, cost,
+    percentile(cost,   0) OVER w1 AS 'P0',
+    percentile(cost,  25) OVER w1 AS 'P1',
+    percentile(cost,  50) OVER w1 AS 'P2',
+    percentile(cost,  75) OVER w1 AS 'P3',
+    percentile(cost, 100) OVER w1 AS 'P4'
+  FROM user
+  WINDOW w1 AS (PARTITION BY class)
+  ORDER BY class, cost;
+} {
+  Nate   W  23.5     23.5     24.6175    24.99     33.625     59.53  
+  Hank   W  24.99    23.5     24.6175    24.99     33.625     59.53  
+  Irma   W  24.99    23.5     24.6175    24.99     33.625     59.53  
+  Mia    W  59.53    23.5     24.6175    24.99     33.625     59.53  
+  Jake   X  2234.99  2234.99  2299.115   2860.24   3792.14    4968.59
+  Gina   X  2320.49  2234.99  2299.115   2860.24   3792.14    4968.59
+  Bob    X  3399.99  2234.99  2299.115   2860.24   3792.14    4968.59
+  Liam   X  4968.59  2234.99  2299.115   2860.24   3792.14    4968.59
+  Fred   Y  539.99   539.99   2443.7     3328.27   3763.7     4319.99
+  Dave   Y  3078.27  539.99   2443.7     3328.27   3763.7     4319.99
+  Alice  Y  3578.27  539.99   2443.7     3328.27   3763.7     4319.99
+  Kim    Y  4319.99  539.99   2443.7     3328.27   3763.7     4319.99
+  Cindy  Z  699.1    699.1    1104.3225  1509.545  1914.7675  2319.99
+  Emma   Z  2319.99  699.1    1104.3225  1509.545  1914.7675  2319.99
+}
+
+# Fuzzer find.
+do_execsql_test percentile-6.0 {
+  WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<12)
+  SELECT median(iif(n%2,0.1,1.0)) FROM c;
+} 0.55
+
+finish_test
diff --git a/test/permutations.test b/test/permutations.test
new file mode 100644
index 0000000000000000000000000000000000000000..5bbef184c73ecb4a2678e324ca14206ef8e3afd7
--- /dev/null
+++ b/test/permutations.test
@@ -0,0 +1,1259 @@
+# 2008 June 21
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+if {[info vars ::trd::tcltest]==""} {
+  set testdir [file dirname $argv0]
+  source $testdir/tester.tcl
+  db close
+}
+
+#-------------------------------------------------------------------------
+# test_suite NAME OPTIONS
+#
+# where available options are:  
+#
+#       -description TITLE                  (default "")
+#       -initialize  SCRIPT                 (default "")
+#       -shutdown    SCRIPT                 (default "")
+#       -presql      SQL                    (default "")
+#       -files       LIST-OF-FILES          (default $::ALLTESTS)
+#       -prefix      NAME                   (default "$::NAME.")
+#       -dbconfig    SCRIPT                 (default "")
+#
+proc test_suite {name args} {
+
+  set default(-shutdown)    ""
+  set default(-initialize)  ""
+  set default(-presql)      ""
+  set default(-description) "no description supplied (fixme)"
+  set default(-files)       ""
+  set default(-prefix)      "${name}."
+  set default(-dbconfig)    ""
+
+  array set options [array get default]
+  if {[llength $args]%2} {
+    error "uneven number of options/switches passed to test_suite"
+  }
+  foreach {k v} $args {
+    set o [array names options ${k}*]
+    if {[llength $o]>1}  { error "ambiguous option: $k" }
+    if {[llength $o]==0} { error "unknown option: $k" }
+    set options([lindex $o 0]) $v
+  }
+
+  set     ::testspec($name) [array get options]
+  lappend ::testsuitelist $name
+}
+
+#-------------------------------------------------------------------------
+# test_set ARGS...
+#
+proc test_set {args} {
+  set isExclude 0
+  foreach a $args {
+    if {[string match -* $a]} {
+      switch -- $a {
+        -include { set isExclude 0 }
+        -exclude { set isExclude 1 }
+        default {
+          error "Unknown switch: $a"
+        }
+      }
+    } elseif {$isExclude == 0} {
+      foreach f $a { set t($f) 1 }
+    } else {
+      foreach f $a { array unset t $f }
+      foreach f $a { array unset t */$f }
+    }
+  }
+
+  return [array names t]
+}
+
+#-------------------------------------------------------------------------
+# Set up the following global list variables containing the names of 
+# various test scripts:
+#
+#   $alltests
+#   $allquicktests
+#
+set alltests [list]
+foreach f [glob $testdir/*.test] { lappend alltests [file tail $f] }
+foreach f [glob -nocomplain            \
+    $testdir/../ext/rtree/*.test       \
+    $testdir/../ext/fts5/test/*.test   \
+    $testdir/../ext/expert/*.test      \
+    $testdir/../ext/lsm1/test/*.test   \
+    $testdir/../ext/recover/*.test     \
+    $testdir/../ext/rbu/*.test         \
+    $testdir/../ext/intck/*.test       \
+] {
+  lappend alltests $f 
+}
+foreach f [glob -nocomplain $testdir/../ext/session/*.test] { 
+  lappend alltests $f 
+}
+unset f
+
+if {$::tcl_platform(platform)!="unix"} {
+  set alltests [test_set $alltests -exclude crash.test crash2.test]
+}
+set alltests [test_set $alltests -exclude {
+  all.test        quick.test  veryquick.test
+  memleak.test    permutations.test  soak.test   fts3.test
+  mallocAll.test  rtree.test         full.test   extraquick.test
+  session.test    rbu.test
+}]
+
+set allquicktests [test_set $alltests -exclude {
+  backup_ioerr.test corrupt.test
+  corruptC.test crash.test crash2.test crash3.test crash4.test crash5.test
+  crash6.test crash7.test delete3.test e_fts3.test fts3rnd.test
+  fkey_malloc.test fuzz.test fuzz3.test fuzz_malloc.test in2.test loadext.test
+  misc7.test mutex2.test onefile.test pagerfault2.test 
+  savepoint4.test savepoint6.test select9.test 
+  speed1.test speed1p.test speed2.test speed3.test speed4.test 
+  speed4p.test sqllimits1.test tkt2686.test thread001.test thread002.test
+  thread003.test thread004.test thread005.test trans2.test vacuum3.test 
+  incrvacuum_ioerr.test autovacuum_crash.test btree8.test shared_err.test
+  vtab_err.test walslow.test walcrash.test walcrash3.test
+  walthread.test rtree3.test indexfault.test securedel2.test
+  sort3.test sort4.test fts4growth.test fts4growth2.test
+  bigsort.test walprotocol.test mmap4.test fuzzer2.test
+  walcrash2.test e_fkey.test backup.test
+
+  fts4merge.test fts4merge2.test fts4merge4.test fts4check.test
+  fts4merge5.test
+  fts3cov.test fts3snippet.test fts3corrupt2.test fts3an.test
+  fts3defer.test fts4langid.test fts3sort.test fts5unicode.test
+  recovercorrupt.test
+
+  rtree4.test
+  sessionbig.test
+
+  writecrash.test view3.test 
+  fts5dlidx.test fts5ac.test fts4merge3.test fts5prefix.test
+  sessionB.test
+}]
+if {[info exists ::env(QUICKTEST_INCLUDE)]} {
+  set allquicktests [concat $allquicktests $::env(QUICKTEST_INCLUDE)]
+}
+if {[info exists ::env(QUICKTEST_OMIT)]} {
+  # If environment variable QUICKTEST_OMIT is set, it is a comma-separated
+  # list of regular expressions to match against test file names in
+  # the "allquicktests" set. Any matches are excluded. Only the filename
+  # is matched, not any directory component of the path.
+  set all [list]
+  foreach a $allquicktests {
+    set bIn 1
+    foreach x [split $::env(QUICKTEST_OMIT) ,] {
+      if {[regexp $x [file tail $a]]} {
+        set bIn 0
+        break
+      }
+    }
+    if {$bIn} {
+      lappend all $a
+    }
+  }
+  set allquicktests $all
+}
+
+# If the TEST_FAILURE environment variable is set, it means that we what to
+# deliberately provoke test failures in order to test the test infrastructure.
+# Only the main.test module is needed for this.
+#
+if {[info exists ::env(TEST_FAILURE)]} {
+  set allquicktests main.test
+}
+
+#############################################################################
+# Start of tests
+#
+
+#-------------------------------------------------------------------------
+# Define the generic test suites:
+#
+#   veryquick
+#   quick
+#   full
+#
+lappend ::testsuitelist xxx
+
+test_suite "veryquick" -prefix "" -description {
+  "Very" quick test suite. Runs in minutes on a workstation.
+  This test suite is the same as the "quick" tests, except that some files
+  that test malloc and IO errors are omitted.
+} -files [
+  test_set $allquicktests -exclude *malloc* *ioerr* *fault* *bigfile* *_err* \
+      *fts5corrupt* *fts5big* *fts5aj* *rbucrash*
+]
+
+test_suite "shell" -prefix "" -description {
+  Run tests of the command-line shell
+} -files [
+  test_set [glob $testdir/shell*.test]
+]
+
+test_suite "extraquick" -prefix "" -description {
+  "Extra" quick test suite. Runs in a few minutes on a workstation.
+  This test suite is the same as the "veryquick" tests, except that
+  slower tests are omitted.
+} -files [
+  test_set $allquicktests -exclude *malloc* *ioerr* *fault* *bigfile* *_err* \
+     wal3.test fts4merge* sort2.test mmap1.test walcrash* \
+     percentile.test where8m.test walcksum.test savepoint3.test \
+     fuzzer1.test fuzzer3.test fts3expr3.test
+]
+
+test_suite "mmap" -prefix "mm-" -description {
+  Similar to veryquick. Except with memory mapping enabled.
+} -presql {
+  pragma mmap_size = 268435456;
+} -files [
+  test_set $allquicktests -exclude *malloc* *ioerr* *fault* -include malloc.test
+]
+
+test_suite "valgrind" -prefix "" -description {
+  Run the "veryquick" test suite with a couple of multi-process tests (that
+  fail under valgrind) omitted.
+} -files [
+  test_set $allquicktests -exclude *malloc* *ioerr* *fault* *_err* wal.test \
+              shell2.test shell6.test shell7.test \
+              crash8.test atof1.test selectG.test \
+              tkt-fc62af4523.test numindex1.test corruptK.test
+] -initialize {
+  set ::G(valgrind) 1
+} -shutdown {
+  unset -nocomplain ::G(valgrind)
+}
+
+test_suite "valgrind-nolookaside" -prefix "" -description {
+  Run the "veryquick" test suite with a couple of multi-process tests (that
+  fail under valgrind) omitted.
+} -files [
+  test_set $allquicktests -exclude *malloc* *ioerr* *fault* *_err* \
+      wal.test atof1.test
+] -initialize {
+  set ::G(valgrind) 1
+  catch {db close}
+  sqlite3_shutdown
+  sqlite3_config_lookaside 0 0
+  sqlite3_initialize
+  autoinstall_test_functions
+} -shutdown {
+  catch {db close}
+  sqlite3_shutdown
+  sqlite3_config_lookaside 100 500
+  sqlite3_initialize
+  autoinstall_test_functions
+  unset -nocomplain ::G(valgrind)
+}
+
+
+test_suite "quick" -prefix "" -description {
+  Quick test suite. Runs in around 10 minutes on a workstation.
+} -files [
+  test_set $allquicktests
+]
+
+test_suite "full" -prefix "" -description {
+  Full test suite. Takes a long time.
+} -files [ 
+  test_set $alltests 
+] -initialize {
+  unset -nocomplain ::G(isquick)
+}
+
+test_suite "threads" -prefix "" -description {
+  All multi-threaded tests.
+} -files {
+  notify2.test   thread001.test thread002.test thread003.test 
+  thread004.test thread005.test walthread.test
+}
+
+test_suite "fts3" -prefix "" -description {
+  All FTS3 tests except fts3rnd.test.
+} -files {
+  fts3aa.test fts3ab.test fts3ac.test fts3ad.test
+  fts3ae.test fts3af.test fts3ag.test fts3ah.test
+  fts3ai.test fts3aj.test fts3ak.test fts3al.test
+  fts3am.test fts3an.test fts3ao.test fts3atoken.test
+  fts3auto.test fts3aux1.test fts3aux2.test fts3b.test
+  fts3comp1.test fts3conf.test fts3corrupt2.test fts3corrupt.test
+  fts3corrupt4.test
+  fts3cov.test fts3c.test fts3defer2.test fts3defer3.test
+  fts3defer.test fts3drop.test fts3d.test fts3e.test
+  fts3expr2.test fts3expr3.test fts3expr4.test fts3expr5.test
+  fts3expr.test fts3fault2.test fts3fault.test fts3first.test
+  fts3join.test fts3malloc.test fts3matchinfo.test fts3near.test
+  fts3offsets.test fts3prefix2.test fts3prefix.test fts3query.test
+  fts3shared.test fts3snippet.test fts3sort.test fts3tok1.test
+  fts3tok_err.test fts3varint.test fts4aa.test fts4check.test
+  fts4content.test fts4docid.test fts4growth2.test fts4growth.test
+  fts4incr.test fts4langid.test fts4lastrowid.test fts4merge2.test
+  fts4merge4.test fts4merge.test fts4noti.test fts4onepass.test 
+  fts4opt.test fts4unicode.test
+  fts3corrupt3.test
+  fts3misc.test
+}
+
+test_suite "fts5" -prefix "" -description {
+  All FTS5 tests.
+} -files [glob -nocomplain $::testdir/../ext/fts5/test/*.test]
+
+test_suite "fts5-light" -prefix "" -description {
+  All FTS5 tests.
+} -files [
+  test_set \
+      [glob -nocomplain $::testdir/../ext/fts5/test/*.test] \
+      -exclude *corrupt* *fault* *big* *fts5aj*
+]
+
+test_suite "window" -prefix "" -description {
+  All window function related tests .
+} -files [
+  test_set [glob -nocomplain $::testdir/window*.test]
+]
+
+test_suite "lsm1" -prefix "" -description {
+  All LSM1 tests.
+} -files [glob -nocomplain $::testdir/../ext/lsm1/test/*.test]
+
+test_suite "nofaultsim" -prefix "" -description {
+  "Very" quick test suite. Runs in less than 5 minutes on a workstation. 
+  This test suite is the same as the "quick" tests, except that some files
+  that test malloc and IO errors are omitted.
+} -files [
+  test_set $allquicktests -exclude *malloc* *ioerr* *fault* *_err*
+] -initialize {
+  catch {db close}
+  sqlite3_shutdown
+  install_malloc_faultsim 0
+  sqlite3_initialize
+  autoinstall_test_functions
+} -shutdown {
+  unset -nocomplain ::G(valgrind)
+}
+
+test_suite "queryplanner" -prefix "" -description {
+  Tests of the query planner and query optimizer
+} -files {
+  alter2.test alter3.test alter4.test alter.test analyze3.test
+  analyze4.test analyze5.test analyze6.test analyze7.test analyze8.test
+  analyze.test attach2.test attach3.test attach4.test
+  attach.test autoinc.test autoindex1.test between.test cast.test
+  check.test closure01.test coalesce.test collate1.test collate2.test
+  collate3.test collate4.test collate5.test collate6.test collate7.test
+  collate8.test collate9.test collateA.test colmeta.test colname.test
+  conflict.test count.test coveridxscan.test createtab.test cse.test
+  date.test dbstatus2.test dbstatus.test default.test delete2.test
+  delete3.test delete.test descidx1.test descidx2.test descidx3.test
+  distinctagg.test distinct.test e_createtable.test e_delete.test
+  e_droptrigger.test e_dropview.test e_expr.test e_insert.test
+  eqp.test e_reindex.test e_resolve.test e_select2.test e_select.test
+  e_update.test exists.test expr.test fkey1.test fkey2.test fkey3.test
+  fkey4.test fkey5.test func2.test func3.test func.test 
+  in3.test in4.test in5.test index2.test index3.test
+  index4.test index5.test indexedby.test index.test
+  insert2.test insert3.test insert4.test insert5.test insert.test
+  instr.test in.test intpkey.test join2.test join3.test join4.test
+  join5.test join6.test join.test like2.test like.test limit.test
+  minmax2.test minmax3.test minmax4.test minmax.test misc1.test misc2.test
+  misc3.test misc4.test misc5.test misc6.test misc7.test orderby1.test
+  orderby2.test orderby3.test orderby4.test randexpr1.test regexp1.test
+  reindex.test rowhash.test rowid.test schema2.test schema3.test
+  schema4.test schema5.test schema.test
+  select1.test select2.test select3.test select4.test select5.test
+  select6.test select7.test select8.test select9.test selectA.test
+  selectB.test selectC.test selectD.test selectE.test sidedelete.test
+  sort.test spellfix.test subquery2.test subquery.test subselect.test
+  substr.test tkt-02a8e81d44.test tkt1435.test tkt1443.test tkt1444.test
+  tkt1449.test tkt1473.test tkt1501.test tkt1512.test tkt1514.test
+  tkt1536.test tkt1537.test tkt1567.test tkt1644.test tkt1667.test
+  tkt1873.test tkt2141.test tkt2192.test tkt2213.test tkt2251.test
+  tkt2285.test tkt2332.test tkt2339.test tkt2391.test tkt2409.test
+  tkt2450.test tkt2565.test tkt2640.test tkt2643.test tkt2686.test
+  tkt-26ff0c2d1e.test tkt2767.test tkt2817.test tkt2820.test tkt2822.test
+  tkt2832.test tkt2854.test tkt2920.test tkt2927.test tkt2942.test
+  tkt-2a5629202f.test tkt-2d1a5c67d.test tkt-2ea2425d34.test tkt3080.test
+  tkt3093.test tkt3121.test tkt-31338dca7e.test tkt-313723c356.test
+  tkt3201.test tkt3292.test tkt3298.test tkt3334.test tkt3346.test
+  tkt3357.test tkt3419.test tkt3424.test tkt3442.test tkt3457.test
+  tkt3461.test tkt3493.test tkt3508.test tkt3522.test tkt3527.test
+  tkt3541.test tkt3554.test tkt3581.test tkt35xx.test tkt3630.test
+  tkt3718.test tkt3731.test tkt3757.test tkt3761.test tkt3762.test
+  tkt3773.test tkt3791.test tkt3793.test tkt3810.test tkt3824.test
+  tkt3832.test tkt3838.test tkt3841.test tkt-385a5b56b9.test tkt3871.test
+  tkt3879.test tkt-38cb5df375.test tkt3911.test tkt3918.test tkt3922.test
+  tkt3929.test tkt3935.test tkt3992.test tkt3997.test tkt-3998683a16.test
+  tkt-3a77c9714e.test tkt-3fe897352e.test tkt4018.test tkt-4a03edc4c8.test
+  tkt-4dd95f6943.test tkt-54844eea3f.test tkt-5d863f876e.test
+  tkt-5e10420e8d.test tkt-5ee23731f.test tkt-6bfb98dfc0.test
+  tkt-752e1646fc.test tkt-78e04e52ea.test tkt-7a31705a7e6.test
+  tkt-7bbfb7d442.test tkt-80ba201079.test tkt-80e031a00f.test
+  tkt-8454a207b9.test tkt-91e2e8ba6f.test tkt-94c04eaadb.test
+  tkt-9d68c883.test tkt-a7b7803e.test tkt-b1d3a2e531.test
+  tkt-b351d95f9.test tkt-b72787b1.test tkt-bd484a090c.test
+  tkt-bdc6bbbb38.test tkt-c48d99d690.test tkt-cbd054fa6b.test
+  tkt-d11f09d36e.test tkt-d635236375.test tkt-d82e3f3721.test
+  tkt-f3e5abed55.test tkt-f777251dc7a.test tkt-f7b4edec.test
+  tkt-f973c7ac31.test tkt-fa7bf5ec.test tkt-fc62af4523.test
+  tkt-fc7bd6358f.test trigger1.test trigger2.test trigger3.test
+  trigger4.test trigger5.test trigger6.test trigger7.test trigger8.test
+  trigger9.test triggerA.test triggerB.test triggerC.test triggerD.test
+  types2.test types3.test types.test unique.test unordered.test
+  update.test view.test vtab1.test vtab2.test vtab3.test vtab4.test
+  vtab5.test vtab6.test vtab7.test vtab8.test vtab9.test vtab_alter.test
+  vtabA.test vtabB.test vtabC.test vtabD.test vtabE.test
+  vtabF.test where2.test where3.test where4.test where5.test where6.test
+  where7.test where8m.test where8.test where9.test whereA.test whereB.test
+  whereC.test whereD.test whereE.test whereF.test wherelimit.test
+  where.test
+}
+
+test_suite "vfslog" -prefix "" -description {
+  "Vfslog" quick test suite. Like "veryquick" except does not omits
+  a few tests that do not work with a version 1 VFS. And the quota* tests,
+  which do not work with a VFS that uses the pVfs argument passed to
+  sqlite3_vfs methods.
+} -files [
+  test_set $allquicktests -exclude *malloc* *ioerr* *fault* oserror.test \
+  pager1.test syscall.test sysfault.test tkt3457.test quota* superlock* \
+  wal* mmap*
+]
+
+test_suite "atomic-batch-write" -prefix "" -description {
+  Like veryquick.test, but must be run on a file-system that supports
+  atomic-batch-writes. Tests that depend on the journal file being present
+  are omitted.
+} -files [
+  test_set $allquicktests -exclude *malloc* *ioerr* *fault* *bigfile* *_err* \
+      *fts5corrupt* *fts5big* *fts5aj*  \
+      crash8.test delete_db.test        \
+      exclusive.test journal3.test      \
+      journal1.test                     \
+      jrnlmode.test jrnlmode2.test      \
+      lock4.test pager1.test            \
+      pager3.test sharedA.test          \
+      symlink.test stmt.test            \
+      sync.test sync2.test              \
+      tempdb.test tkt3457.test          \
+      vacuum5.test wal2.test            \
+      walmode.test zerodamage.test
+] -initialize {
+  if {[atomic_batch_write test.db]==0} {
+    error "File system does NOT support atomic-batch-write"
+  }
+}
+
+lappend ::testsuitelist xxx
+#-------------------------------------------------------------------------
+# Define the coverage related test suites:
+#
+#   coverage-wal
+#
+test_suite "coverage-wal" -description {
+  Coverage tests for file wal.c.
+} -files {
+  wal.test wal2.test wal3.test wal4.test wal5.test
+  wal64k.test wal6.test wal7.test wal8.test wal9.test
+  walbak.test walbig.test walblock.test walcksum.test walcrash2.test
+  walcrash3.test walcrash4.test walcrash.test walfault.test walhook.test
+  walmode.test walnoshm.test waloverwrite.test walpersist.test 
+  walprotocol2.test walprotocol.test walro2.test walrofault.test 
+  walro.test walshared.test walslow.test walvfs.test
+  walfault2.test
+  nockpt.test
+
+  snapshot2.test snapshot3.test snapshot4.test
+  snapshot_fault.test snapshot.test snapshot_up.test
+} 
+
+test_suite "coverage-pager" -description {
+  Coverage tests for file pager.c.
+} -files {
+  pager1.test    pager2.test  pagerfault.test  pagerfault2.test
+  walfault.test  walbak.test  journal2.test    tkt-9d68c883.test
+} 
+
+test_suite "coverage-analyze" -description {
+  Coverage tests for file analyze.c.
+} -files {
+  analyze3.test analyze4.test analyze5.test analyze6.test
+  analyze7.test analyze8.test analyze9.test
+  analyze.test mallocA.test
+} 
+
+test_suite "coverage-sorter" -description {
+  Coverage tests for file vdbesort.c.
+} -files {
+  sort.test sortfault.test
+} 
+
+
+lappend ::testsuitelist xxx
+#-------------------------------------------------------------------------
+# Define the permutation test suites:
+#
+
+# Run some tests using pre-allocated page blocks.
+#
+# mmap1.test is excluded because a good number of its tests depend on 
+# the page-cache being larger than the database. But this permutation
+# causes the effective limit on the page-cache to be just 24 pages.
+#
+test_suite "memsubsys1" -description {
+  Tests using pre-allocated page blocks
+} -files [
+  test_set $::allquicktests -exclude ioerr5.test malloc5.test mmap1.test
+] -initialize {
+  test_set_config_pagecache 4096 24
+  catch {db close}
+  sqlite3_shutdown
+  sqlite3_initialize
+  autoinstall_test_functions
+} -shutdown {
+  test_restore_config_pagecache
+  catch {db close}
+  sqlite3_shutdown
+  sqlite3_initialize
+  autoinstall_test_functions
+}
+
+# Run some tests using pre-allocated page blocks. This time
+# the allocations are too small to use in most cases.
+#
+# Both ioerr5.test and malloc5.test are excluded because they test the
+# sqlite3_soft_heap_limit() and sqlite3_release_memory() functionality.
+# This functionality is disabled if a pre-allocated page block is provided.
+#
+test_suite "memsubsys2" -description {
+  Tests using small pre-allocated page blocks
+} -files [
+  test_set $::allquicktests -exclude ioerr5.test malloc5.test
+] -initialize {
+  test_set_config_pagecache 512 5
+  catch {db close}
+  sqlite3_shutdown
+  sqlite3_initialize
+  autoinstall_test_functions
+} -shutdown {
+  test_restore_config_pagecache
+  catch {db close}
+  sqlite3_shutdown
+  sqlite3_initialize
+  autoinstall_test_functions
+}
+
+# Run all tests with the lookaside allocator disabled.
+#
+test_suite "nolookaside" -description {
+  OOM tests with lookaside disabled
+} -initialize {
+  catch {db close}
+  sqlite3_shutdown
+  sqlite3_config_lookaside 0 0
+  sqlite3_initialize
+  autoinstall_test_functions
+} -shutdown {
+  catch {db close}
+  sqlite3_shutdown
+  sqlite3_config_lookaside 100 500
+  sqlite3_initialize
+  autoinstall_test_functions
+} -files $::allquicktests
+
+# Run some tests in SQLITE_CONFIG_SINGLETHREAD mode.
+#
+test_suite "singlethread" -description {
+  Tests run in SQLITE_CONFIG_SINGLETHREAD mode
+} -initialize {
+  catch {db close}
+  sqlite3_shutdown
+  catch {sqlite3_config singlethread}
+  sqlite3_initialize
+  autoinstall_test_functions
+} -files {
+  delete.test   delete2.test  insert.test  rollback.test  select1.test
+  select2.test  trans.test    update.test  vacuum.test    types.test
+  types2.test   types3.test
+} -shutdown {
+  catch {db close}
+  sqlite3_shutdown
+  catch {sqlite3_config serialized}
+  sqlite3_initialize
+  autoinstall_test_functions
+}
+
+test_suite "nomutex" -description {
+  Tests run with the SQLITE_OPEN_MULTITHREADED flag passed to sqlite3_open().
+} -initialize {
+  set ::G(perm:sqlite3_args) [list -fullmutex 0 -nomutex 1]
+} -files {
+  delete.test   delete2.test  insert.test  rollback.test  select1.test
+  select2.test  trans.test    update.test  vacuum.test    types.test
+  types2.test   types3.test
+} 
+
+# Run some tests in SQLITE_CONFIG_MULTITHREAD mode.
+#
+test_suite "multithread" -description {
+  Tests run in SQLITE_CONFIG_MULTITHREAD mode
+} -initialize {
+  catch {db close}
+  sqlite3_shutdown
+  catch {sqlite3_config multithread}
+  sqlite3_initialize
+  autoinstall_test_functions
+} -files {
+  delete.test   delete2.test  insert.test  rollback.test  select1.test
+  select2.test  trans.test    update.test  vacuum.test    types.test
+  types2.test   types3.test   sort4.test
+} -shutdown {
+  catch {db close}
+  sqlite3_shutdown
+  catch {sqlite3_config serialized}
+  sqlite3_initialize
+  autoinstall_test_functions
+}
+
+# Run some tests in SQLITE_OPEN_FULLMUTEX mode.
+#
+test_suite "fullmutex" -description {
+  Tests run in SQLITE_OPEN_FULLMUTEX mode
+} -initialize {
+  set ::G(perm:sqlite3_args) [list -nomutex 0 -fullmutex 1]
+} -files {
+  delete.test   delete2.test  insert.test  rollback.test  select1.test
+  select2.test  trans.test    update.test  vacuum.test    types.test
+  types2.test   types3.test
+}
+
+# Run some tests using the "onefile" demo.
+#
+test_suite "onefile" -description {
+  Run some tests using the "test_onefile.c" demo
+} -initialize {
+  set ::G(perm:sqlite3_args) [list -vfs fs]
+} -files {
+  conflict.test  insert.test   insert2.test  insert3.test
+  rollback.test  select1.test  select2.test  select3.test
+}
+
+# Run some tests using UTF-16 databases.
+#
+test_suite "utf16" -description {
+  Run tests using UTF-16 databases
+} -presql {
+  pragma encoding = 'UTF-16'
+} -files {
+    alter.test alter3.test
+    analyze.test analyze3.test analyze4.test analyze5.test analyze6.test
+    analyze7.test analyze8.test analyze9.test
+    auth.test bind.test blob.test capi2.test capi3.test collate1.test
+    collate2.test collate3.test collate4.test collate5.test collate6.test
+    conflict.test date.test delete.test expr.test fkey1.test func.test
+    hook.test index.test insert2.test insert.test interrupt.test in.test
+    intpkey.test ioerr.test join2.test join.test lastinsert.test
+    laststmtchanges.test limit.test lock2.test lock.test main.test 
+    memdb.test minmax.test misc1.test misc2.test misc3.test notnull.test
+    null.test progress.test quote.test rowid.test select1.test select2.test
+    select3.test select4.test select5.test select6.test sort.test 
+    subselect.test tableapi.test table.test temptable.test
+    trace.test trigger1.test trigger2.test trigger3.test
+    trigger4.test types2.test types.test unique.test update.test
+    vacuum.test view.test where.test
+    bestindex1.test
+}
+
+# Run some tests in exclusive locking mode.
+#
+test_suite "exclusive" -description {
+  Run tests in exclusive locking mode.
+} -presql {
+  pragma locking_mode = 'exclusive'
+} -files {
+  rollback.test select1.test select2.test 
+  malloc.test ioerr.test
+} 
+
+# Run some tests in exclusive locking mode with truncated journals.
+#
+test_suite "exclusive-truncate" -description {
+  Run tests in exclusive locking mode and truncate journal mode.
+} -presql {
+  pragma locking_mode = 'exclusive';
+  pragma journal_mode = TRUNCATE;
+} -files {
+  delete.test delete2.test insert.test rollback.test select1.test
+  select2.test update.test malloc.test ioerr.test
+} 
+
+# Run some tests in persistent journal mode.
+#
+test_suite "persistent_journal" -description {
+  Run tests in persistent-journal mode.
+} -presql {
+  pragma journal_mode = persist
+} -files {
+  delete.test delete2.test insert.test rollback.test select1.test
+  select2.test trans.test update.test vacuum.test 
+}
+
+# Run some tests in truncating journal mode.
+#
+test_suite "truncate_journal" -description {
+  Run tests in persistent-journal mode.
+} -presql {
+  pragma journal_mode = truncate
+} -files {
+  delete.test delete2.test insert.test rollback.test select1.test
+  select2.test trans.test update.test vacuum.test 
+  malloc.test ioerr.test
+}
+
+# Run some error tests in persistent journal mode.
+#
+test_suite "persistent_journal_error" -description {
+  Run malloc.test and ioerr.test in persistent-journal mode.
+} -presql {
+  pragma journal_mode = persist
+} -files {
+  malloc.test ioerr.test
+}
+
+# Run some tests in no journal mode.
+#
+test_suite "no_journal" -description {
+  Run tests in no-journal mode.
+} -presql {
+  pragma journal_mode = persist
+} -files {
+  delete.test delete2.test insert.test rollback.test select1.test
+  select2.test trans.test update.test vacuum.test 
+}
+
+# Run some error tests in no journal mode.
+#
+test_suite "no_journal_error" -description {
+  Run malloc.test and ioerr.test in no-journal mode.
+} -presql {
+  pragma journal_mode = persist
+} -files {
+  malloc.test ioerr.test
+}
+
+# Run some crash-tests in autovacuum mode.
+#
+test_suite "autovacuum_crash" -description {
+  Run crash.test in autovacuum mode.
+} -presql {
+  pragma auto_vacuum = 1
+} -files crash.test
+
+# Run some ioerr-tests in autovacuum mode.
+#
+test_suite "autovacuum_ioerr" -description {
+  Run ioerr.test in autovacuum mode.
+} -presql {
+  pragma auto_vacuum = 1
+} -files ioerr.test
+
+# Run tests with an in-memory journal.
+#
+test_suite "inmemory_journal" -description {
+  Run tests with an in-memory journal file.
+} -presql {
+  pragma journal_mode = 'memory'
+} -files [test_set $::allquicktests -exclude {
+  # Exclude all tests that simulate IO errors.
+  autovacuum_ioerr2.test cffault.test incrvacuum_ioerr.test ioerr.test
+  ioerr.test ioerr2.test ioerr3.test ioerr4.test ioerr5.test
+  vacuum3.test incrblob_err.test diskfull.test backup_ioerr.test
+  e_fts3.test fts3cov.test fts3malloc.test fts3rnd.test
+  fts3snippet.test mmapfault.test sessionfault.test sessionfault2.test
+
+  # Exclude test scripts that use tcl IO to access journal files or count
+  # the number of fsync() calls.
+  pager.test exclusive.test jrnlmode.test sync.test misc1.test 
+  journal1.test conflict.test crash8.test tkt3457.test io.test
+  journal3.test 8_3_names.test shmlock.test
+  pendingrace.test
+
+  pager1.test corrupt.test filefmt.test pager2.test
+  corrupt5.test corruptA.test pageropt.test
+
+  # Exclude stmt.test, which expects sub-journals to use temporary files.
+  stmt.test symlink.test
+
+  zerodamage.test
+
+  # WAL mode is different.
+  wal* tkt-2d1a5c67d.test backcompat.test e_wal* rowallock.test
+
+  # This test does not work as the "PRAGMA journal_mode = memory"
+  # statement switches the database out of wal mode at inopportune
+  # times.
+  snapshot_fault.test
+  
+  # This test assumes a journal file is created on disk.
+  delete_db.test
+  
+  # This test depends on a successful recovery from the pager error 
+  # state. Which is not possible with an in-memory journal
+  fts5fault1.test
+
+  recoverpgsz.test
+}]
+
+test_suite "memsys3" -description {
+  Run tests using the allocator in mem3.c.
+} -files [test_set $::allquicktests -exclude {
+  autovacuum.test           delete3.test              manydb.test
+  bigrow.test               incrblob2.test            memdb.test
+  bitvec.test               index2.test               memsubsys1.test
+  capi3c.test               ioerr.test                memsubsys2.test
+  capi3.test                join3.test                pagesize.test
+  collate5.test             limit.test                backup_ioerr.test
+  backup_malloc.test
+}] -initialize {
+  catch {db close}
+  sqlite3_reset_auto_extension
+  sqlite3_shutdown
+  sqlite3_config_heap 25000000 0
+  sqlite3_config_lookaside 0 0
+  ifcapable mem5 {
+    # If both memsys3 and memsys5 are enabled in the build, the call to
+    # [sqlite3_config_heap] will initialize the system to use memsys5.
+    # The following overrides this preference and installs the memsys3
+    # allocator.
+    sqlite3_install_memsys3
+  }
+  install_malloc_faultsim 1 
+  sqlite3_initialize
+  autoinstall_test_functions
+} -shutdown {
+  catch {db close}
+  sqlite3_shutdown
+  sqlite3_config_heap 0 0
+  sqlite3_config_lookaside 100 500
+  install_malloc_faultsim 1 
+  sqlite3_initialize
+  autoinstall_test_functions
+}
+
+test_suite "memsys5" -description {
+  Run tests using the allocator in mem5.c.
+} -files [test_set $::allquicktests -exclude {
+  autovacuum.test           delete3.test              manydb.test
+  bigrow.test               incrblob2.test            memdb.test
+  bitvec.test               index2.test               memsubsys1.test
+  capi3c.test               ioerr.test                memsubsys2.test
+  capi3.test                join3.test                pagesize.test
+  collate5.test             limit.test                zeroblob.test
+}] -initialize {
+  catch {db close}
+  sqlite3_shutdown
+  sqlite3_config_heap 25000000 64
+  sqlite3_config_lookaside 0 0
+  install_malloc_faultsim 1 
+  sqlite3_initialize
+  autoinstall_test_functions
+} -shutdown {
+  catch {db close}
+  sqlite3_shutdown
+  sqlite3_config_heap 0 0
+  sqlite3_config_lookaside 100 500
+  install_malloc_faultsim 1 
+  sqlite3_initialize
+  autoinstall_test_functions
+}
+
+test_suite "memsys5-2" -description {
+  Run tests using the allocator in mem5.c in a different configuration.
+} -files {
+  select1.test 
+} -initialize {
+  catch {db close}
+  sqlite3_shutdown
+  sqlite3_config_memstatus 0
+  sqlite3_config_heap 40000000 16
+  sqlite3_config_lookaside 0 0
+  install_malloc_faultsim 1 
+  sqlite3_initialize
+  autoinstall_test_functions
+} -shutdown {
+  catch {db close}
+  sqlite3_shutdown
+  sqlite3_config_heap 0 0
+  sqlite3_config_lookaside 100 500
+  install_malloc_faultsim 1 
+  sqlite3_initialize
+  autoinstall_test_functions
+}
+
+test_suite "no_mutex_try" -description {
+   The sqlite3_mutex_try() interface always fails
+} -files [
+  test_set $::allquicktests -exclude mutex1.test mutex2.test
+] -initialize {
+  catch {db close}
+  sqlite3_shutdown
+  install_mutex_counters 1
+  set ::disable_mutex_try 1
+  sqlite3_initialize
+  autoinstall_test_functions
+} -shutdown {
+  catch {db close}
+  catch {db2 close}
+  catch {db3 close}
+  sqlite3_shutdown
+  install_mutex_counters 0
+  sqlite3_initialize
+  autoinstall_test_functions
+}
+
+# run_tests "crash_safe_append" -description {
+#   Run crash.test with persistent journals on a SAFE_APPEND file-system.
+# } -initialize {
+#   rename crashsql sa_crashsql
+#   proc crashsql {args} {
+#     set options [lrange $args 0 [expr {[llength $args]-2}]]
+#     lappend options -char safe_append
+#     set sql [lindex $args end]
+#     lappend options "
+#       PRAGMA journal_mode=persistent;
+#       $sql
+#     "
+#     set fd [open test.db-journal w]
+#     puts $fd [string repeat 1234567890 100000]
+#     close $fd
+#     eval sa_crashsql $options
+#   }
+# } -shutdown {
+#   rename crashsql {}
+#   rename sa_crashsql crashsql
+# } -files crash.test
+
+test_suite "safe_append" -description {
+  Run some tests on a SAFE_APPEND file-system.
+} -initialize {
+  set ::G(perm:sqlite3_args) [list -vfs devsym]
+  sqlite3_simulate_device -char safe_append
+} -files [
+  test_set $::allquicktests shared_err.test
+]
+
+# The set of tests to run on the alternative-pcache
+set perm-alt-pcache-testset {
+  attach.test
+  delete.test delete2.test
+  index.test
+  insert.test insert2.test
+  join.test join2.test
+  rollback.test
+  select1.test select2.test
+  trans.test
+  update.test
+}
+
+foreach discard_rate {0 10 50 90 100} {
+  test_suite "pcache${discard_rate}" -description "
+    Alternative pcache implementation with ${discard_rate}% random discard
+  " -initialize "
+    catch {db close}
+    sqlite3_shutdown
+    sqlite3_config_alt_pcache 1 $discard_rate 1
+    sqlite3_initialize
+    autoinstall_test_functions
+  " -shutdown {
+    catch {db close}
+    sqlite3_shutdown
+    sqlite3_config_alt_pcache 0 0 0
+    sqlite3_config_lookaside 100 500
+    install_malloc_faultsim 1 
+    sqlite3_initialize
+    autoinstall_test_functions
+  } -files ${perm-alt-pcache-testset}
+}
+
+test_suite "journaltest" -description {
+  Check that pages are synced before being written (test_journal.c).
+} -initialize {
+  catch {db close}
+  register_jt_vfs -default ""
+} -shutdown {
+  unregister_jt_vfs
+} -files [test_set $::allquicktests -exclude {
+  wal* incrvacuum.test ioerr.test corrupt4.test io.test crash8.test 
+  bigfile.test backcompat.test e_wal* fstat.test mmap2.test
+  pager1.test syscall.test tkt3457.test *malloc* mmap* multiplex* nolock*
+  pager2.test *fault* rowal* snapshot* superlock* symlink.test
+  delete_db.test shmlock.test chunksize.test
+  busy2.test avfs.test external_reader.test
+}]
+
+if {[info commands register_demovfs] != ""} {
+  test_suite "demovfs" -description {
+    Check that the demovfs (code in test_demovfs.c) more or less works.
+  } -initialize {
+    register_demovfs
+  } -shutdown {
+    unregister_demovfs
+  } -files {
+    insert.test   insert2.test  insert3.test rollback.test 
+    select1.test  select2.test  select3.test
+  }
+}
+
+test_suite "wal" -description {
+  Run tests with journal_mode=WAL
+} -initialize {
+  set ::G(savepoint6_iterations) 100
+} -shutdown {
+  unset -nocomplain ::G(savepoint6_iterations)
+} -files {
+  savepoint.test     savepoint2.test     savepoint6.test
+  trans.test         avtrans.test
+
+  fts3aa.test  fts3ab.test  fts3ac.test  fts3ad.test
+  fts3ae.test  fts3af.test  fts3ag.test  fts3ah.test
+  fts3ai.test  fts3aj.test  fts3ak.test  fts3al.test
+  fts3am.test  fts3an.test  fts3ao.test  fts3b.test
+  fts3c.test   fts3d.test   fts3e.test   fts3query.test 
+}
+
+test_suite "rtree" -description {
+  All R-tree related tests. Provides coverage of source file rtree.c.
+} -files [glob -nocomplain $::testdir/../ext/rtree/*.test]
+
+test_suite "session" -description {
+  All session module related tests. 
+} -files [glob -nocomplain $::testdir/../ext/session/*.test]
+
+test_suite "session_eec" -description {
+  All session module related tests with sqlite3_extended_result_codes() set. 
+} -files [
+  glob -nocomplain $::testdir/../ext/session/*.test
+] -dbconfig {
+  sqlite3_extended_result_codes $::dbhandle 1
+}
+
+test_suite "session_strm" -description {
+  All session module related tests using the streaming APIs.
+} -files [
+  glob -nocomplain $::testdir/../ext/session/*.test
+] -dbconfig {
+  set ::sqlite3session_streams 1
+}
+
+test_suite "rbu" -description {
+  RBU tests.
+} -files [
+  test_set [glob -nocomplain $::testdir/../ext/rbu/*.test] 
+]
+
+test_suite "no_optimization" -description {
+  Run test scripts with optimizations disabled using the
+  sqlite3_test_control(SQLITE_TESTCTRL_OPTIMIZATIONS) interface.
+} -files [
+  test_set \
+    [glob -nocomplain $::testdir/window*.test]                       \
+    where.test where2.test where3.test where4.test where5.test       \
+    where6.test where7.test where8.test where9.test                  \
+    whereA.test whereB.test wherelimit.test                          \
+    select1.test select2.test select3.test select4.test select5.test \
+    select7.test select8.test selectA.test selectC.test              \
+    -exclude windowpushd.test
+] -dbconfig {
+  optimization_control $::dbhandle all 0
+}
+
+test_suite "prepare" -description {
+  Run tests with the db connection using sqlite3_prepare() instead of _v2().
+} -dbconfig {
+  $::dbhandle version -use-legacy-prepare 1
+  #$::dbhandle cache size 0
+} -files [
+  test_set $allquicktests -exclude *malloc* *ioerr* *fault* \
+      stmtvtab1.test index9.test
+]
+
+test_suite "sorterref" -prefix "" -description {
+  Run the "veryquick" test suite with SQLITE_CONFIG_SORTERREF_SIZE set
+  to 0 so that sorter-references are used whenever possible.
+} -files [
+  test_set $allquicktests -exclude *malloc* *ioerr* *fault* *bigfile* *_err* \
+      *fts5corrupt* *fts5big* *fts5aj*
+] -initialize {
+  catch {db close}
+  sqlite3_shutdown
+  sqlite3_config_sorterref 0
+  sqlite3_initialize
+  autoinstall_test_functions
+} -shutdown {
+  catch {db close}
+  sqlite3_shutdown
+  sqlite3_config_sorterref -1
+  sqlite3_initialize
+  autoinstall_test_functions
+}
+
+test_suite "maindbname" -prefix "" -description {
+  Run the "veryquick" test suite with SQLITE_DBCONFIG_MAINDBNAME used to
+  set the name of database 0 to "icecube".
+} -files [
+  test_set $allquicktests -exclude *malloc* *ioerr* *fault* *bigfile* *_err* \
+      *fts5corrupt* *fts5big* *fts5aj*
+] -dbconfig {
+  dbconfig_maindbname_icecube $::dbhandle
+}
+
+# End of tests
+#############################################################################
+
+# run_tests NAME OPTIONS
+#
+# where available options are:  
+#
+#       -description TITLE
+#       -initialize  SCRIPT
+#       -shutdown    SCRIPT
+#       -files       LIST-OF-FILES
+#       -prefix      NAME
+#       -dbconfig    SCRIPT
+#
+proc run_tests {name args} {
+  set options(-initialize) ""
+  set options(-shutdown) ""
+  set options(-prefix) ""
+  set options(-dbconfig) ""
+  set options(-presql) ""
+
+  array set options $args
+
+  set ::G(perm:name)         $name
+  set ::G(perm:prefix)       $options(-prefix)
+  set ::G(isquick)           1
+  set ::G(perm:dbconfig)     $options(-dbconfig)
+  set ::G(perm:presql)       $options(-presql)
+
+  set filelist [lsort $options(-files)]
+  if {[info exists ::env(TCLTEST_PART)]} {
+    regexp {^([0-9]*)/([0-9]*)$} $::env(TCLTEST_PART) -> A B
+    set nFile [expr {([llength $filelist]+$B-1)/$B}]
+    set filelist [lrange $filelist [expr ($A-1)*$nFile] [expr $A*$nFile-1]]
+  }
+
+  foreach file $filelist {
+    if {[file tail $file] == $file} { set file [file join $::testdir $file] }
+
+    if {[info exists ::env(SQLITE_TEST_PATTERN_LIST)]} {
+      set ok 0
+      foreach p $::env(SQLITE_TEST_PATTERN_LIST) {
+        set p [string map {% *} $p]
+        if {[string match $p [file tail $file]]} {set ok 1 ; break}
+      }
+      if {!$ok} continue
+    }
+
+    uplevel $options(-initialize)
+    slave_test_file $file
+    uplevel $options(-shutdown)
+    unset -nocomplain ::G(perm:sqlite3_args)
+  }
+
+  unset ::G(perm:name)
+  unset ::G(perm:prefix)
+  unset ::G(perm:dbconfig)
+  unset ::G(perm:presql)
+}
+
+proc run_test_suite {name} {
+  if {[info exists ::testspec($name)]==0} {
+    error "No such test suite: $name"
+  }
+  uplevel run_tests $name $::testspec($name)
+}
+
+proc help {} {
+  puts "Usage: $::argv0 TESTSUITE ?TESTFILE?"
+  puts ""
+  puts "Available test-suites are:"
+
+  set iPos 0
+  foreach k $::testsuitelist {
+    if {[info exists ::testspec($k)]} {
+      switch $iPos {
+        0 {
+          puts ""
+          puts -nonewline "  [format %-30s $k]"
+        }
+
+        1 {
+          puts -nonewline [format %-30s $k]
+        }
+
+        2 {
+          puts -nonewline $k
+        }
+      }
+
+      set iPos [expr (($iPos+1) % 3)]
+    }
+  }
+  puts ""
+  exit -1
+}
+
+if {[file tail $argv0] == "permutations.test"} {
+  proc main {argv} {
+    if {[llength $argv]==0} {
+      help
+    } else {
+
+      # See if the first argument is a named test-suite.
+      #
+      set suite [file tail [lindex $argv 0]]
+      if {[info exists ::testspec($suite)]} {
+        set S $::testspec($suite)
+        set i 1
+      } else {
+        set suite default
+        set S [list]
+        set i 0
+      }
+
+      set extra ""
+      if {$i < [llength $argv] && [string range [lindex $argv $i] 0 0]!="-" } {
+        set files [list]
+        for {} {$i < [llength $argv]} {incr i} {
+          set pattern [string map {% *} [lindex $argv $i]]
+          if {[string range $pattern 0 0]=="-"} break
+          foreach f $::alltests {
+            set tail [file tail $f]
+            if {[lsearch $files $f]<0 && [string match $pattern $tail]} {
+              lappend files $f
+            }
+          }
+        }
+        set extra [list -files $files]
+      }
+
+      eval [list run_tests $suite] $S $extra
+    }
+  }
+  main $argv
+  set argv {}
+  finish_test
+}
diff --git a/test/pg_common.tcl b/test/pg_common.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..dd16659a671012dfb952d2fe4156eafc35b2c74f
--- /dev/null
+++ b/test/pg_common.tcl
@@ -0,0 +1,175 @@
+# 2018 May 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+package require sqlite3
+package require Pgtcl
+
+set db [pg_connect -conninfo "dbname=postgres user=postgres password=postgres"]
+sqlite3 sqlite ""
+
+proc execsql {sql} {
+
+  set sql [string map {{WITHOUT ROWID} {}} $sql]
+
+  set lSql [list]
+  set frag ""
+  while {[string length $sql]>0} {
+    set i [string first ";" $sql]
+    if {$i>=0} {
+      append frag [string range $sql 0 $i]
+      set sql [string range $sql $i+1 end]
+      if {[sqlite complete $frag]} {
+        lappend lSql $frag
+        set frag ""
+      }
+    } else {
+      set frag $sql
+      set sql ""
+    }
+  }
+  if {$frag != ""} {
+    lappend lSql $frag
+  }
+  #puts $lSql
+
+  set ret ""
+  set nChar 0
+  foreach stmt $lSql {
+    set res [pg_exec $::db $stmt]
+    set err [pg_result $res -error]
+    if {$err!=""} { error $err }
+
+    for {set i 0} {$i < [pg_result $res -numTuples]} {incr i} {
+      set t [pg_result $res -getTuple $i]
+      set nNew [string length $t]
+      if {$nChar>0 && ($nChar+$nNew+3)>75} {
+        append ret "\n  "
+        set nChar 0
+      } else {
+        if {$nChar>0} {
+          append ret "   "
+          incr nChar 3
+        }
+      }
+      incr nChar $nNew
+      append ret $t
+    }
+    pg_result $res -clear
+  }
+
+  set ret
+}
+
+proc execsql_test {tn sql} {
+  set res [execsql $sql]
+  set sql [string map {string_agg group_concat} $sql]
+  # set sql [string map [list {NULLS FIRST} {}] $sql]
+  # set sql [string map [list {NULLS LAST} {}] $sql]
+  puts $::fd "do_execsql_test $tn {"
+  puts $::fd "  [string trim $sql]"
+  puts $::fd "} {$res}"
+  puts $::fd ""
+}
+
+proc errorsql_test {tn sql} {
+  set rc [catch {execsql $sql} msg]
+  if {$rc==0} {
+    error "errorsql_test SQL did not cause an error!"
+  }
+  set msg [lindex [split [string trim $msg] "\n"] 0]
+  puts $::fd "# PG says $msg"
+  set sql [string map {string_agg group_concat} $sql]
+  puts $::fd "do_test $tn { catch { execsql {"
+  puts $::fd "  [string trim $sql]"
+  puts $::fd "} } } 1"
+  puts $::fd ""
+}
+
+# Same as [execsql_test], except coerce all results to floating point values
+# with two decimal points.
+#
+proc execsql_float_test {tn sql} {
+  set F "%.4f"
+  set T 0.0001
+  set res [execsql $sql]
+  set res2 [list]
+  foreach r $res { 
+    if {$r != ""} { set r [format $F $r] }
+    lappend res2 $r
+  }
+
+  set sql [string trim $sql]
+puts $::fd [subst -nocommands {
+do_test $tn {
+  set myres {}
+  foreach r [db eval {$sql}] {
+    lappend myres [format $F [set r]]
+  }
+  set res2 {$res2}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-$T) || [set r]>([set r2]+$T)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+}]
+}
+
+proc start_test {name date} {
+  set dir [file dirname $::argv0]
+  set output [file join $dir $name.test]
+  set ::fd [open $output w]
+puts $::fd [string trimleft "
+# $date
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+
+####################################################
+# DO NOT EDIT! THIS FILE IS AUTOMATICALLY GENERATED!
+####################################################
+"]
+  puts $::fd {set testdir [file dirname $argv0]}
+  puts $::fd {source $testdir/tester.tcl}
+  puts $::fd "set testprefix $name"
+  puts $::fd ""
+}
+
+proc -- {args} {
+  puts $::fd "# $args"
+}
+
+proc ========== {args} {
+  puts $::fd "#[string repeat = 74]"
+  puts $::fd ""
+}
+
+proc finish_test {} {
+  puts $::fd finish_test
+  close $::fd
+}
+
+proc ifcapable {arg} {
+   puts $::fd "ifcapable $arg { finish_test ; return }"
+}
+
diff --git a/test/pragma.test b/test/pragma.test
new file mode 100644
index 0000000000000000000000000000000000000000..e823a6763024dc9e86700fdd948387cfb5c6048f
--- /dev/null
+++ b/test/pragma.test
@@ -0,0 +1,2094 @@
+# 2002 March 6
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests for the PRAGMA command.
+#
+# $Id: pragma.test,v 1.73 2009/01/12 14:01:45 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix pragma
+
+# Do not use a codec for tests in this file, as the database file is
+# manipulated directly using tcl scripts (using the [hexio_write] command).
+#
+do_not_use_codec
+
+# Test organization:
+#
+# pragma-1.*: Test cache_size, default_cache_size and synchronous on main db.
+# pragma-2.*: Test synchronous on attached db.
+# pragma-3.*: Test detection of table/index inconsistency by integrity_check.
+# pragma-4.*: Test cache_size and default_cache_size on attached db.
+# pragma-5.*: Test that pragma synchronous may not be used inside of a
+#             transaction.
+# pragma-6.*: Test schema-query pragmas.
+# pragma-7.*: Miscellaneous tests.
+# pragma-8.*: Test user_version and schema_version pragmas.
+# pragma-9.*: Test temp_store and temp_store_directory.
+# pragma-10.*: Test the count_changes pragma in the presence of triggers.
+# pragma-11.*: Test the collation_list pragma.
+# pragma-14.*: Test the page_count pragma.
+# pragma-15.*: Test that the value set using the cache_size pragma is not
+#              reset when the schema is reloaded.
+# pragma-16.*: Test proxy locking
+# pragma-20.*: Test data_store_directory.
+# pragma-22.*: Test that "PRAGMA [db].integrity_check" respects the "db"
+#              directive - if it is present.
+#
+
+ifcapable !pragma {
+  finish_test
+  return
+}
+
+# Capture the output of a pragma in a TEMP table.
+#
+proc capture_pragma {db tabname sql} {
+  $db eval "DROP TABLE IF EXISTS temp.$tabname"
+  set once 1
+  $db eval $sql x {
+    if {$once} {
+      set once 0
+      set ins "INSERT INTO $tabname VALUES"
+      set crtab "CREATE TEMP TABLE $tabname "
+      set sep "("
+      foreach col $x(*) {
+        append ins ${sep}\$x($col)
+        append crtab ${sep}\"$col\"
+        set sep ,
+      }
+      append ins )
+      append crtab )
+      $db eval $crtab
+    }
+    $db eval $ins
+  }
+}
+
+# Delete the preexisting database to avoid the special setup
+# that the "all.test" script does.
+#
+db close
+delete_file test.db test.db-journal
+delete_file test3.db test3.db-journal
+sqlite3 db test.db; set DB [sqlite3_connection_pointer db]
+
+# EVIDENCE-OF: R-13861-56665 PRAGMA schema.cache_size; PRAGMA
+# schema.cache_size = pages; PRAGMA schema.cache_size = -kibibytes;
+# Query or change the suggested maximum number of database disk pages
+# that SQLite will hold in memory at once per open database file.
+#
+ifcapable pager_pragmas {
+set DFLT_CACHE_SZ [db one {PRAGMA default_cache_size}]
+set TEMP_CACHE_SZ [db one {PRAGMA temp.default_cache_size}]
+do_test pragma-1.1 {
+  execsql {
+    PRAGMA cache_size;
+    PRAGMA default_cache_size;
+    PRAGMA synchronous;
+  }
+} [list $DFLT_CACHE_SZ $DFLT_CACHE_SZ 2]
+do_test pragma-1.2 {
+  # EVIDENCE-OF: R-42059-47211 If the argument N is positive then the
+  # suggested cache size is set to N.
+  execsql {
+    PRAGMA synchronous=OFF;
+    PRAGMA cache_size=1234;
+    PRAGMA cache_size;
+    PRAGMA default_cache_size;
+    PRAGMA synchronous;
+  }
+} [list 1234 $DFLT_CACHE_SZ 0]
+do_test pragma-1.3 {
+  db close
+  sqlite3 db test.db
+  execsql {
+    PRAGMA cache_size;
+    PRAGMA default_cache_size;
+    PRAGMA synchronous;
+  }
+} [list $DFLT_CACHE_SZ $DFLT_CACHE_SZ 2]
+do_test pragma-1.4 {
+  execsql {
+    PRAGMA synchronous=OFF;
+    PRAGMA cache_size;
+    PRAGMA default_cache_size;
+    PRAGMA synchronous;
+  }
+} [list $DFLT_CACHE_SZ $DFLT_CACHE_SZ 0]
+do_test pragma-1.5 {
+  execsql {
+    PRAGMA cache_size=-4321;
+    PRAGMA cache_size;
+    PRAGMA default_cache_size;
+    PRAGMA synchronous;
+  }
+} [list -4321 $DFLT_CACHE_SZ 0]
+do_test pragma-1.6 {
+  execsql {
+    PRAGMA synchronous=ON;
+    PRAGMA cache_size;
+    PRAGMA default_cache_size;
+    PRAGMA synchronous;
+  }
+} [list -4321 $DFLT_CACHE_SZ 1]
+do_test pragma-1.7 {
+  db close
+  sqlite3 db test.db
+  execsql {
+    PRAGMA cache_size;
+    PRAGMA default_cache_size;
+    PRAGMA synchronous;
+  }
+} [list $DFLT_CACHE_SZ $DFLT_CACHE_SZ 2]
+do_test pragma-1.8 {
+  execsql {
+    PRAGMA default_cache_size=-123;
+    PRAGMA cache_size;
+    PRAGMA default_cache_size;
+    PRAGMA synchronous;
+  }
+} {123 123 2}
+do_test pragma-1.9.1 {
+  db close
+  sqlite3 db test.db; set ::DB [sqlite3_connection_pointer db]
+  execsql {
+    PRAGMA cache_size;
+    PRAGMA default_cache_size;
+    PRAGMA synchronous;
+  }
+} {123 123 2}
+ifcapable vacuum {
+  do_test pragma-1.9.2 {
+    execsql {
+      VACUUM;
+      PRAGMA cache_size;
+      PRAGMA default_cache_size;
+      PRAGMA synchronous;
+    }
+  } {123 123 2}
+}
+do_test pragma-1.10 {
+  execsql {
+    PRAGMA synchronous=NORMAL;
+    PRAGMA cache_size;
+    PRAGMA default_cache_size;
+    PRAGMA synchronous;
+  }
+} {123 123 1}
+do_test pragma-1.11.1 {
+  execsql {
+    PRAGMA synchronous=EXTRA;
+    PRAGMA cache_size;
+    PRAGMA default_cache_size;
+    PRAGMA synchronous;
+  }
+} {123 123 3}
+do_test pragma-1.11.2 {
+  execsql {
+    PRAGMA synchronous=FULL;
+    PRAGMA cache_size;
+    PRAGMA default_cache_size;
+    PRAGMA synchronous;
+  }
+} {123 123 2}
+do_test pragma-1.12 {
+  db close
+  sqlite3 db test.db; set ::DB [sqlite3_connection_pointer db]
+  execsql {
+    PRAGMA cache_size;
+    PRAGMA default_cache_size;
+    PRAGMA synchronous;
+  }
+} {123 123 2}
+
+# Make sure the pragma handler understands numeric values in addition
+# to keywords like "off" and "full".
+#
+do_test pragma-1.13 {
+  execsql {
+    PRAGMA synchronous=0;
+    PRAGMA synchronous;
+  }
+} {0}
+do_test pragma-1.14 {
+  execsql {
+    PRAGMA synchronous=2;
+    PRAGMA synchronous;
+  }
+} {2}
+do_test pragma-1.14.1 {
+  execsql {
+    PRAGMA synchronous=4;
+    PRAGMA synchronous;
+  }
+} {4}
+do_test pragma-1.14.2 {
+  execsql {
+    PRAGMA synchronous=3;
+    PRAGMA synchronous;
+  }
+} {3}
+do_test pragma-1.14.3 {
+  execsql {
+    PRAGMA synchronous=8;
+    PRAGMA synchronous;
+  }
+} {0}
+do_test pragma-1.14.4 {
+  execsql {
+    PRAGMA synchronous=10;
+    PRAGMA synchronous;
+  }
+} {2}
+
+do_execsql_test 1.15.1 {
+  PRAGMA default_cache_size = 0;
+}
+do_execsql_test 1.15.2 {
+  PRAGMA default_cache_size;
+} $DFLT_CACHE_SZ
+do_execsql_test 1.15.3 {
+  PRAGMA default_cache_size = -500;
+}
+do_execsql_test 1.15.4 {
+  PRAGMA default_cache_size;
+} 500
+do_execsql_test 1.15.3 {
+  PRAGMA default_cache_size = 500;
+}
+do_execsql_test 1.15.4 {
+  PRAGMA default_cache_size;
+} 500
+db close
+hexio_write test.db 48 FFFFFF00
+sqlite3 db test.db
+do_execsql_test 1.15.4 {
+  PRAGMA default_cache_size;
+} 256
+} ;# ifcapable pager_pragmas
+
+# Test turning "flag" pragmas on and off.
+#
+ifcapable debug {
+  # Pragma "vdbe_listing" is only available if compiled with SQLITE_DEBUG
+  #
+  do_test pragma-1.15 {
+    execsql {
+      PRAGMA vdbe_listing=YES;
+      PRAGMA vdbe_listing;
+    }
+  } {1}
+  do_test pragma-1.16 {
+    execsql {
+      PRAGMA vdbe_listing=NO;
+      PRAGMA vdbe_listing;
+    }
+  } {0}
+}
+
+do_test pragma-1.17 {
+  execsql {
+    PRAGMA parser_trace=ON;
+    PRAGMA parser_trace=OFF;
+  }
+} {}
+do_test pragma-1.18 {
+  execsql {
+    PRAGMA bogus = -1234;  -- Parsing of negative values
+  }
+} {}
+
+# Test modifying the safety_level of an attached database.
+ifcapable pager_pragmas&&attach {
+  do_test pragma-2.1 {
+    forcedelete test2.db
+    forcedelete test2.db-journal
+    execsql {
+      ATTACH 'test2.db' AS aux;
+    } 
+  } {}
+  do_test pragma-2.2 {
+    execsql {
+      pragma aux.synchronous;
+    } 
+  } {2}
+  do_test pragma-2.3 {
+    execsql {
+      pragma aux.synchronous = OFF;
+      pragma aux.synchronous;
+      pragma synchronous;
+    } 
+  } {0 2}
+  do_test pragma-2.4 {
+    execsql {
+      pragma aux.synchronous = ON;
+      pragma synchronous;
+      pragma aux.synchronous;
+    } 
+  } {2 1}
+} ;# ifcapable pager_pragmas
+
+# Construct a corrupted index and make sure the integrity_check
+# pragma finds it.
+#
+# These tests won't work if the database is encrypted
+#
+do_test pragma-3.1 {
+  db close
+  forcedelete test.db test.db-journal
+  sqlite3 db test.db
+  execsql {
+    PRAGMA auto_vacuum=OFF;
+    BEGIN;
+    CREATE TABLE t2(a,b,c);
+    CREATE INDEX i2 ON t2(a);
+    INSERT INTO t2 VALUES(11,2,3);
+    INSERT INTO t2 VALUES(22,3,4);
+    COMMIT;
+    SELECT rowid, * from t2;
+  }
+} {1 11 2 3 2 22 3 4}
+ifcapable attach {
+  if {![sqlite3 -has-codec] && $sqlite_options(integrityck)} {
+    do_test pragma-3.2 {
+      db eval {SELECT rootpage FROM sqlite_master WHERE name='i2'} break
+      set pgsz [db eval {PRAGMA page_size}]
+      # overwrite the header on the rootpage of the index in order to
+      # make the index appear to be empty.
+      #
+      set offset [expr {$pgsz*($rootpage-1)}]
+      hexio_write test.db $offset 0a00000000040000000000
+      db close
+      sqlite3 db test.db
+      execsql {PRAGMA integrity_check}
+    } {{wrong # of entries in index i2} {row 1 missing from index i2} {row 2 missing from index i2}}
+    do_test pragma-3.3 {
+      execsql {PRAGMA integrity_check=1}
+    } {{wrong # of entries in index i2}}
+    do_test pragma-3.4 {
+      execsql {
+        ATTACH DATABASE 'test.db' AS t2;
+        PRAGMA integrity_check
+      }
+    } {{wrong # of entries in index i2} {row 1 missing from index i2} {row 2 missing from index i2} {wrong # of entries in index i2} {row 1 missing from index i2} {row 2 missing from index i2}}
+    do_test pragma-3.5 {
+      execsql {
+        PRAGMA integrity_check=4
+      }
+    } {{wrong # of entries in index i2} {row 1 missing from index i2} {row 2 missing from index i2} {wrong # of entries in index i2}}
+    do_catchsql_test pragma-3.5.2 {
+      PRAGMA integrity_check='4'
+    } {1 {no such table: 4}}
+    do_catchsql_test pragma-3.6 {
+      PRAGMA integrity_check=xyz
+    } {1 {no such table: xyz}}
+    do_catchsql_test pragma-3.6b {
+      PRAGMA integrity_check=t2
+    } {0 {{wrong # of entries in index i2} {row 1 missing from index i2} {row 2 missing from index i2}}}
+    do_catchsql_test pragma-3.6c {
+      PRAGMA integrity_check=sqlite_schema
+    } {0 ok}
+    do_test pragma-3.7 {
+      execsql {
+        PRAGMA integrity_check=0
+      }
+    } {{wrong # of entries in index i2} {row 1 missing from index i2} {row 2 missing from index i2} {wrong # of entries in index i2} {row 1 missing from index i2} {row 2 missing from index i2}}
+  
+    # Add additional corruption by appending unused pages to the end of
+    # the database file testerr.db
+    #
+    do_test pragma-3.8 {
+      execsql {DETACH t2}
+      forcedelete testerr.db testerr.db-journal
+      set out [open testerr.db w]
+      fconfigure $out -translation binary
+      set in [open test.db r]
+      fconfigure $in -translation binary
+      puts -nonewline $out [read $in]
+      seek $in 0
+      puts -nonewline $out [read $in]
+      close $in
+      close $out
+      hexio_write testerr.db 28 00000000
+      execsql {REINDEX t2}
+      execsql {PRAGMA integrity_check}
+    } {ok}
+    do_test pragma-3.8.1 {
+      execsql {PRAGMA quick_check}
+    } {ok}
+    do_test pragma-3.8.2 {
+      execsql {PRAGMA QUICK_CHECK}
+    } {ok}
+    do_test pragma-3.9a {
+      execsql {
+        ATTACH 'testerr.db' AS t2;
+        PRAGMA integrity_check
+      }
+    } {{*** in database t2 ***
+Page 4: never used
+Page 5: never used
+Page 6: never used} {wrong # of entries in index i2} {row 1 missing from index i2} {row 2 missing from index i2}}
+    do_execsql_test pragma-3.9b {
+      PRAGMA t2.integrity_check=t2;
+    } {{wrong # of entries in index i2} {row 1 missing from index i2} {row 2 missing from index i2}}
+    do_execsql_test pragma-3.9c {
+      PRAGMA t2.integrity_check=sqlite_schema;
+    } {ok}
+    do_test pragma-3.10 {
+      execsql {
+        PRAGMA integrity_check=1
+      }
+    } {{*** in database t2 ***
+Page 4: never used}}
+    do_test pragma-3.11 {
+      execsql {
+        PRAGMA integrity_check=5
+      }
+    } {{*** in database t2 ***
+Page 4: never used
+Page 5: never used
+Page 6: never used} {wrong # of entries in index i2} {row 1 missing from index i2}}
+    do_test pragma-3.12 {
+      execsql {
+        PRAGMA integrity_check=4
+      }
+    } {{*** in database t2 ***
+Page 4: never used
+Page 5: never used
+Page 6: never used} {wrong # of entries in index i2}}
+    do_test pragma-3.13 {
+      execsql {
+        PRAGMA integrity_check=3
+      }
+    } {{*** in database t2 ***
+Page 4: never used
+Page 5: never used
+Page 6: never used}}
+    do_test pragma-3.14 {
+      execsql {
+        PRAGMA integrity_check(2)
+      }
+    } {{*** in database t2 ***
+Page 4: never used
+Page 5: never used}}
+    do_test pragma-3.15 {
+      execsql {
+        ATTACH 'testerr.db' AS t3;
+        PRAGMA integrity_check
+      }
+    } {{*** in database t2 ***
+Page 4: never used
+Page 5: never used
+Page 6: never used} {wrong # of entries in index i2} {row 1 missing from index i2} {row 2 missing from index i2} {*** in database t3 ***
+Page 4: never used
+Page 5: never used
+Page 6: never used} {wrong # of entries in index i2} {row 1 missing from index i2} {row 2 missing from index i2}}
+    do_test pragma-3.16 {
+      execsql {
+        PRAGMA integrity_check(10)
+      }
+    } {{*** in database t2 ***
+Page 4: never used
+Page 5: never used
+Page 6: never used} {wrong # of entries in index i2} {row 1 missing from index i2} {row 2 missing from index i2} {*** in database t3 ***
+Page 4: never used
+Page 5: never used
+Page 6: never used} {wrong # of entries in index i2}}
+    do_test pragma-3.17 {
+      execsql {
+        PRAGMA integrity_check=8
+      }
+    } {{*** in database t2 ***
+Page 4: never used
+Page 5: never used
+Page 6: never used} {wrong # of entries in index i2} {row 1 missing from index i2} {row 2 missing from index i2} {*** in database t3 ***
+Page 4: never used
+Page 5: never used}}
+    do_test pragma-3.18 {
+      execsql {
+        PRAGMA integrity_check=4
+      }
+    } {{*** in database t2 ***
+Page 4: never used
+Page 5: never used
+Page 6: never used} {wrong # of entries in index i2}}
+  }
+  do_test pragma-3.19 {
+    catch {db close}
+    forcedelete test.db test.db-journal
+    sqlite3 db test.db
+    db eval {PRAGMA integrity_check}
+  } {ok}
+}
+
+# Verify that PRAGMA integrity_check catches UNIQUE and NOT NULL
+# constraint violations.
+#
+ifcapable altertable {
+  sqlite3_db_config db DEFENSIVE 0
+    do_execsql_test pragma-3.20 {
+      CREATE TABLE t1(a,b);
+      CREATE INDEX t1a ON t1(a);
+      INSERT INTO t1 VALUES(1,1),(2,2),(3,3),(2,4),(NULL,5),(NULL,6);
+      PRAGMA writable_schema=ON;
+      UPDATE sqlite_master SET sql='CREATE UNIQUE INDEX t1a ON t1(a)'
+        WHERE name='t1a';
+      UPDATE sqlite_master SET sql='CREATE TABLE t1(a NOT NULL,b)'
+        WHERE name='t1';
+      PRAGMA writable_schema=OFF;
+      ALTER TABLE t1 RENAME TO t1x;
+      PRAGMA integrity_check;
+    } {{non-unique entry in index t1a} {NULL value in t1x.a} {non-unique entry in index t1a} {NULL value in t1x.a}}
+  do_execsql_test pragma-3.21 {
+    PRAGMA integrity_check(3);
+  } {{non-unique entry in index t1a} {NULL value in t1x.a} {non-unique entry in index t1a}}
+  do_execsql_test pragma-3.22 {
+    PRAGMA integrity_check(2);
+  } {{non-unique entry in index t1a} {NULL value in t1x.a}}
+  do_execsql_test pragma-3.23 {
+    PRAGMA integrity_check(1);
+  } {{non-unique entry in index t1a}}
+
+  # forum post https://sqlite.org/forum/forumpost/ee4f6fa5ab
+  do_execsql_test pragma-3.24 {
+    DROP TABLE IF EXISTS t1;
+    CREATE TABLE t1(a);
+    INSERT INTO t1 VALUES (1);
+    ALTER TABLE t1 ADD COLUMN b NOT NULL DEFAULT 0.25;
+    SELECT * FROM t1;
+    PRAGMA integrity_check(t1);
+  } {1 0.25 ok}
+  do_execsql_test pragma-3.25 {
+    ALTER TABLE t1 ADD COLUMN c CHECK (1);
+    SELECT * FROM t1;
+    PRAGMA integrity_check(t1);
+  } {1 0.25 {} ok}
+}
+
+# PRAGMA integrity check (or more specifically the sqlite3BtreeCount()
+# interface) used to leave index cursors in an inconsistent state
+# which could result in an assertion fault in sqlite3BtreeKey()
+# called from saveCursorPosition() if content is removed from the
+# index while the integrity_check is still running.  This test verifies
+# that problem has been fixed.
+#
+do_test pragma-3.30 {
+  catch { db close }
+  delete_file test.db
+  sqlite3 db test.db
+  db eval {
+    CREATE TABLE t1(a,b,c);
+    WITH RECURSIVE
+      c(i) AS (VALUES(1) UNION ALL SELECT i+1 FROM c WHERE i<100)
+    INSERT INTO t1(a,b,c) SELECT i, printf('xyz%08x',i), 2000-i FROM c;
+    CREATE INDEX t1a ON t1(a);
+    CREATE INDEX t1bc ON t1(b,c);
+  }
+  db eval {PRAGMA integrity_check} {
+     db eval {DELETE FROM t1}
+  }
+} {}
+
+# The values stored in indexes must be byte-for-byte identical to the
+# values stored in tables.
+#
+reset_db
+do_execsql_test pragma-3.40 {
+  CREATE TABLE t1(
+    a INTEGER PRIMARY KEY,
+    b TEXT COLLATE nocase,
+    c INT COLLATE nocase,
+    d TEXT
+  );
+  INSERT INTO t1(a,b,c,d) VALUES
+    (1, 'one','one','one'),
+    (2, 'two','two','two'),
+    (3, 'three','three','three'),
+    (4, 'four','four','four'),
+    (5, 'five','five','five');
+  CREATE INDEX t1bcd ON t1(b,c,d);
+  CREATE TABLE t2(
+    a INTEGER PRIMARY KEY,
+    b TEXT COLLATE nocase,
+    c INT COLLATE nocase,
+    d TEXT
+  );
+  INSERT INTO t2(a,b,c,d) VALUES
+    (1, 'one','one','one'),
+    (2, 'two','two','TWO'),
+    (3, 'three','THREE','three'),
+    (4, 'FOUR','four','four'),
+    (5, 'FIVE','FIVE','five');
+  CREATE INDEX t2bcd ON t2(b,c,d);
+  CREATE TEMP TABLE saved_schema AS SELECT name, rootpage FROM sqlite_schema;
+  PRAGMA writable_schema=ON;
+  UPDATE sqlite_schema
+     SET rootpage=(SELECT rootpage FROM saved_schema WHERE name='t2bcd')
+   WHERE name='t1bcd';
+  UPDATE sqlite_schema
+     SET rootpage=(SELECT rootpage FROM saved_schema WHERE name='t1bcd')
+   WHERE name='t2bcd';
+  PRAGMA Writable_schema=RESET;
+}
+ifcapable vtab {
+  do_execsql_test pragma-3.41 {
+    SELECT integrity_check AS x FROM pragma_integrity_check ORDER BY 1;
+  } {
+    {row 2 missing from index t1bcd}
+    {row 2 missing from index t2bcd}
+    {row 3 values differ from index t1bcd}
+    {row 3 values differ from index t2bcd}
+    {row 4 values differ from index t1bcd}
+    {row 4 values differ from index t2bcd}
+    {row 5 values differ from index t1bcd}
+    {row 5 values differ from index t2bcd}
+  }
+}
+db eval {DROP TABLE t2}
+
+# Test modifying the cache_size of an attached database.
+ifcapable pager_pragmas&&attach {
+do_test pragma-4.1 {
+  execsql {
+    ATTACH 'test2.db' AS aux;
+    pragma aux.cache_size;
+    pragma aux.default_cache_size;
+  } 
+} [list $DFLT_CACHE_SZ $DFLT_CACHE_SZ]
+do_test pragma-4.2 {
+  execsql {
+    pragma aux.cache_size = 50;
+    pragma aux.cache_size;
+    pragma aux.default_cache_size;
+  } 
+} [list 50 $DFLT_CACHE_SZ]
+do_test pragma-4.3 {
+  execsql {
+    pragma aux.default_cache_size = 456;
+    pragma aux.cache_size;
+    pragma aux.default_cache_size;
+  } 
+} {456 456}
+do_test pragma-4.4 {
+  execsql {
+    pragma cache_size;
+    pragma default_cache_size;
+  } 
+} [list $DFLT_CACHE_SZ $DFLT_CACHE_SZ]
+do_test pragma-4.5 {
+  execsql {
+    DETACH aux;
+    ATTACH 'test3.db' AS aux;
+    pragma aux.cache_size;
+    pragma aux.default_cache_size;
+  } 
+} [list $DFLT_CACHE_SZ $DFLT_CACHE_SZ]
+do_test pragma-4.6 {
+  execsql {
+    DETACH aux;
+    ATTACH 'test2.db' AS aux;
+    pragma aux.cache_size;
+    pragma aux.default_cache_size;
+  } 
+} {456 456}
+} ;# ifcapable pager_pragmas
+
+# Test that modifying the sync-level in the middle of a transaction is
+# disallowed.
+ifcapable pager_pragmas {
+do_test pragma-5.0 {
+  execsql {
+    pragma synchronous;
+  } 
+} {2}
+do_test pragma-5.1 {
+  catchsql {
+    BEGIN;
+    pragma synchronous = OFF;
+  } 
+} {1 {Safety level may not be changed inside a transaction}}
+do_test pragma-5.2 {
+  execsql {
+    pragma synchronous;
+  } 
+} {2}
+catchsql {COMMIT;}
+} ;# ifcapable pager_pragmas
+
+# Test schema-query pragmas
+#
+ifcapable schema_pragmas {
+ifcapable tempdb&&attach {
+  do_test pragma-6.1 {
+    set res {}
+    execsql {SELECT * FROM sqlite_temp_master}
+    foreach {idx name file} [execsql {pragma database_list}] {
+      lappend res $idx $name
+    }
+    set res
+  } {0 main 1 temp 2 aux}
+}
+do_test pragma-6.2 {
+  execsql {
+    CREATE TABLE t2(a TYPE_X, b [TYPE_Y], c "TYPE_Z");
+    pragma table_info(t2)
+  }
+} {0 a TYPE_X 0 {} 0 1 b TYPE_Y 0 {} 0 2 c TYPE_Z 0 {} 0}
+do_test pragma-6.2.1 {
+  execsql {
+    pragma table_info;
+  }
+} {}
+db nullvalue <<NULL>>
+do_test pragma-6.2.2 {
+  execsql {
+    CREATE TABLE t5(
+      a TEXT DEFAULT CURRENT_TIMESTAMP, 
+      b DEFAULT (5+3),
+      c TEXT,
+      d INTEGER DEFAULT NULL,
+      e TEXT DEFAULT '',
+      UNIQUE(b,c,d),
+      PRIMARY KEY(e,b,c)
+    );
+    PRAGMA table_info(t5);
+  }
+} {0 a TEXT 0 CURRENT_TIMESTAMP 0 1 b {} 0 5+3 2 2 c TEXT 0 <<NULL>> 3 3 d INTEGER 0 NULL 0 4 e TEXT 0 '' 1}
+db nullvalue {}
+do_test pragma-6.2.3 {
+  execsql {
+    CREATE TABLE t2_3(a,b INTEGER PRIMARY KEY,c);
+    pragma table_info(t2_3)
+  }
+} {0 a {} 0 {} 0 1 b INTEGER 0 {} 1 2 c {} 0 {} 0}
+ifcapable {foreignkey} {
+  do_test pragma-6.3.1 {
+    execsql {
+      CREATE TABLE t3(a int references t2(b), b UNIQUE);
+      pragma foreign_key_list(t3);
+    }
+  } {0 0 t2 a b {NO ACTION} {NO ACTION} NONE}
+  do_test pragma-6.3.2 {
+    execsql {
+      pragma foreign_key_list;
+    }
+  } {}
+  do_test pragma-6.3.3 {
+    execsql {
+      pragma foreign_key_list(t3_bogus);
+    }
+  } {}
+  do_test pragma-6.3.4 {
+    execsql {
+      pragma foreign_key_list(t5);
+    }
+  } {}
+  do_test pragma-6.4 {
+    capture_pragma db out {
+      pragma index_list(t3);
+    }
+    db eval {SELECT seq, "name", "unique" FROM out ORDER BY seq}
+  } {0 sqlite_autoindex_t3_1 1}
+}
+ifcapable {!foreignkey} {
+  execsql {CREATE TABLE t3(a,b UNIQUE)}
+}
+do_test pragma-6.5.1 {
+  execsql {
+    CREATE INDEX t3i1 ON t3(a,b);
+  }
+  capture_pragma db out {
+    pragma index_info(t3i1);
+  }
+  db eval {SELECT seqno, cid, name FROM out ORDER BY seqno}
+} {0 0 a 1 1 b}
+
+# EVIDENCE-OF: R-23114-21695 The auxiliary index-columns are not shown
+# by the index_info pragma, but they are listed by the index_xinfo
+# pragma.
+#
+do_test pragma-6.5.1b {
+  capture_pragma db out {PRAGMA index_xinfo(t3i1)}
+  db eval {SELECT seqno, cid, name FROM out ORDER BY seqno}
+} {0 0 a 1 1 b 2 -1 {}}
+
+
+# EVIDENCE-OF: R-29448-60346 PRAGMA schema.index_info(index-name); This
+# pragma returns one row for each key column in the named index.
+#
+# (The first column of output from PRAGMA index_info is...)
+# EVIDENCE-OF: R-34186-52914 The rank of the column within the index. (0
+# means left-most.)
+#
+# (The second column of output from PRAGMA index_info is...)
+# EVIDENCE-OF: R-65019-08383 The rank of the column within the table
+# being indexed.
+#
+# (The third column of output from PRAGMA index_info is...)
+# EVIDENCE-OF: R-09773-34266 The name of the column being indexed.
+#
+do_execsql_test pragma-6.5.1c {
+  CREATE INDEX t3i2 ON t3(b,a);
+  PRAGMA index_info='t3i2';
+  DROP INDEX t3i2;
+} {0 1 b 1 0 a}
+
+do_test pragma-6.5.2 {
+  execsql {
+    pragma index_info(t3i1_bogus);
+  }
+} {}
+
+ifcapable tempdb {
+  # Test for ticket #3320. When a temp table of the same name exists, make
+  # sure the schema of the main table can still be queried using 
+  # "pragma table_info":
+  do_test pragma-6.6.1 {
+    execsql {
+      CREATE TABLE trial(col_main);
+      CREATE TEMP TABLE trial(col_temp);
+    }
+  } {}
+  do_test pragma-6.6.2 {
+    execsql {
+      PRAGMA table_info(trial);
+    }
+  } {0 col_temp {} 0 {} 0}
+  do_test pragma-6.6.3 {
+    execsql {
+      PRAGMA temp.table_info(trial);
+    }
+  } {0 col_temp {} 0 {} 0}
+  do_test pragma-6.6.4 {
+    execsql {
+      PRAGMA main.table_info(trial);
+    }
+  } {0 col_main {} 0 {} 0}
+}
+
+do_test pragma-6.7 {
+  execsql {
+    CREATE TABLE test_table(
+      one INT NOT NULL DEFAULT -1, 
+      two text,
+      three VARCHAR(45, 65) DEFAULT 'abcde',
+      four REAL DEFAULT X'abcdef',
+      five DEFAULT CURRENT_TIME
+    );
+  }
+  capture_pragma db out {PRAGMA table_info(test_table)}
+  db eval {SELECT cid, "name", type, "notnull", dflt_value, pk FROM out
+            ORDER BY cid}
+} [concat \
+  {0 one INT 1 -1 0} \
+  {1 two TEXT 0 {} 0} \
+  {2 three {VARCHAR(45, 65)} 0 'abcde' 0} \
+  {3 four REAL 0 X'abcdef' 0} \
+  {4 five {} 0 CURRENT_TIME 0} \
+]
+do_test pragma-6.8 {
+  execsql {
+    CREATE TABLE t68(a,b,c,PRIMARY KEY(a,b,a,c));
+    PRAGMA table_info(t68);
+  }
+} [concat \
+  {0 a {} 0 {} 1} \
+  {1 b {} 0 {} 2} \
+  {2 c {} 0 {} 4} \
+]
+} ;# ifcapable schema_pragmas
+# Miscellaneous tests
+#
+ifcapable schema_pragmas {
+# EVIDENCE-OF: R-64103-17776 PRAGMA schema.index_list(table-name); This
+# pragma returns one row for each index associated with the given table.
+#
+do_test pragma-7.1.1 {
+  # Make sure a pragma knows to read the schema if it needs to
+  db close
+  sqlite3 db test.db
+  capture_pragma db out "PRAGMA index_list(t3)"
+  db eval {SELECT name, "origin" FROM out ORDER BY name DESC}
+} {t3i1 c sqlite_autoindex_t3_1 u}
+do_test pragma-7.1.2 {
+  execsql {
+    pragma index_list(t3_bogus);
+  }
+} {}
+} ;# ifcapable schema_pragmas
+ifcapable {utf16} {
+  if {[permutation] == ""} {
+    do_test pragma-7.2 {
+      db close
+      sqlite3 db test.db
+      catchsql {
+        pragma encoding=bogus;
+      }
+    } {1 {unsupported encoding: bogus}}
+  }
+}
+ifcapable tempdb {
+  do_test pragma-7.3 {
+    db close
+    sqlite3 db test.db
+    execsql {
+      pragma lock_status;
+    }
+  } {main unlocked temp closed}
+} else {
+  do_test pragma-7.3 {
+    db close
+    sqlite3 db test.db
+    execsql {
+      pragma lock_status;
+    }
+  } {main unlocked}
+}
+
+
+#----------------------------------------------------------------------
+# Test cases pragma-8.* test the "PRAGMA schema_version" and "PRAGMA
+# user_version" statements.
+#
+# pragma-8.1: PRAGMA schema_version
+# pragma-8.2: PRAGMA user_version
+#
+
+ifcapable schema_version {
+
+# First check that we can set the schema version and then retrieve the
+# same value.
+do_test pragma-8.1.1 {
+  execsql {
+    PRAGMA schema_version = 105;
+  }
+} {}
+do_test pragma-8.1.2 {
+  execsql2 {
+    PRAGMA schema_version;
+  }
+} {schema_version 105}
+sqlite3_db_config db DEFENSIVE 1
+do_execsql_test pragma-8.1.3 {
+  PRAGMA schema_version = 106;
+  PRAGMA schema_version;
+} 105
+sqlite3_db_config db DEFENSIVE 0
+do_execsql_test pragma-8.1.4 {
+  PRAGMA schema_version = 106;
+  PRAGMA schema_version;
+} 106
+
+# Check that creating a table modifies the schema-version (this is really
+# to verify that the value being read is in fact the schema version).
+do_test pragma-8.1.5 {
+  execsql {
+    CREATE TABLE t4(a, b, c);
+    INSERT INTO t4 VALUES(1, 2, 3);
+    SELECT * FROM t4;
+  }
+} {1 2 3}
+do_test pragma-8.1.6 {
+  execsql {
+    PRAGMA schema_version;
+  }
+} 107
+
+# Now open a second connection to the database. Ensure that changing the
+# schema-version using the first connection forces the second connection
+# to reload the schema. This has to be done using the C-API test functions,
+# because the TCL API accounts for SCHEMA_ERROR and retries the query.
+do_test pragma-8.1.7 {
+  sqlite3 db2 test.db; set ::DB2 [sqlite3_connection_pointer db2]
+  execsql {
+    SELECT * FROM t4;
+  } db2
+} {1 2 3}
+do_test pragma-8.1.8 {
+  execsql {
+    PRAGMA schema_version = 108;
+  }
+} {}
+do_test pragma-8.1.9 {
+  set ::STMT [sqlite3_prepare $::DB2 "SELECT * FROM t4" -1 DUMMY]
+  sqlite3_step $::STMT
+} SQLITE_ERROR
+do_test pragma-8.1.10 {
+  sqlite3_finalize $::STMT
+} SQLITE_SCHEMA
+
+# Make sure the schema-version can be manipulated in an attached database.
+forcedelete test2.db
+forcedelete test2.db-journal
+ifcapable attach {
+  do_test pragma-8.1.11 {
+    execsql {
+      ATTACH 'test2.db' AS aux;
+      CREATE TABLE aux.t1(a, b, c);
+      PRAGMA aux.schema_version = 205;
+    }
+  } {}
+  do_test pragma-8.1.12 {
+    execsql {
+      PRAGMA aux.schema_version;
+    }
+  } 205
+}
+do_test pragma-8.1.13 {
+  execsql {
+    PRAGMA schema_version;
+  }
+} 108
+
+# And check that modifying the schema-version in an attached database
+# forces the second connection to reload the schema.
+ifcapable attach {
+  do_test pragma-8.1.14 {
+    sqlite3 db2 test.db; set ::DB2 [sqlite3_connection_pointer db2]
+    execsql {
+      ATTACH 'test2.db' AS aux;
+      SELECT * FROM aux.t1;
+    } db2
+  } {}
+  do_test pragma-8.1.15 {
+    execsql {
+      PRAGMA aux.schema_version = 206;
+    }
+  } {}
+  do_test pragma-8.1.16 {
+    set ::STMT [sqlite3_prepare $::DB2 "SELECT * FROM aux.t1" -1 DUMMY]
+    sqlite3_step $::STMT
+  } SQLITE_ERROR
+  do_test pragma-8.1.17 {
+    sqlite3_finalize $::STMT
+  } SQLITE_SCHEMA
+  do_test pragma-8.1.18 {
+    db2 close
+  } {}
+}
+
+# Now test that the user-version can be read and written (and that we aren't
+# accidentally manipulating the schema-version instead).
+do_test pragma-8.2.1 {
+  execsql2 {
+    PRAGMA user_version;
+  }
+} {user_version 0}
+do_test pragma-8.2.2 {
+  execsql {
+    PRAGMA user_version = 2;
+  }
+} {}
+do_test pragma-8.2.3.1 {
+  execsql2 {
+    PRAGMA user_version;
+  }
+} {user_version 2}
+do_test pragma-8.2.3.2 {
+  db close
+  sqlite3 db test.db
+  execsql {
+    PRAGMA user_version;
+  }
+} {2}
+do_test pragma-8.2.4.1 {
+  execsql {
+    PRAGMA schema_version;
+  }
+} {108}
+ifcapable vacuum {
+  do_test pragma-8.2.4.2 {
+    execsql {
+      VACUUM;
+      PRAGMA user_version;
+    }
+  } {2}
+  do_test pragma-8.2.4.3 {
+    execsql {
+      PRAGMA schema_version;
+    }
+  } {109}
+}
+
+ifcapable attach {
+  db eval {ATTACH 'test2.db' AS aux}
+  
+  # Check that the user-version in the auxilary database can be manipulated (
+  # and that we aren't accidentally manipulating the same in the main db).
+  do_test pragma-8.2.5 {
+    execsql {
+      PRAGMA aux.user_version;
+    }
+  } {0}
+  do_test pragma-8.2.6 {
+    execsql {
+      PRAGMA aux.user_version = 3;
+    }
+  } {}
+  do_test pragma-8.2.7 {
+    execsql {
+      PRAGMA aux.user_version;
+    }
+  } {3}
+  do_test pragma-8.2.8 {
+    execsql {
+      PRAGMA main.user_version;
+    }
+  } {2}
+  
+  # Now check that a ROLLBACK resets the user-version if it has been modified
+  # within a transaction.
+  do_test pragma-8.2.9 {
+    execsql {
+      BEGIN;
+      PRAGMA aux.user_version = 10;
+      PRAGMA user_version = 11;
+    }
+  } {}
+  do_test pragma-8.2.10 {
+    execsql {
+      PRAGMA aux.user_version;
+    }
+  } {10}
+  do_test pragma-8.2.11 {
+    execsql {
+      PRAGMA main.user_version;
+    }
+  } {11}
+  do_test pragma-8.2.12 {
+    execsql {
+      ROLLBACK;
+      PRAGMA aux.user_version;
+    }
+  } {3}
+  do_test pragma-8.2.13 {
+    execsql {
+      PRAGMA main.user_version;
+    }
+  } {2}
+}
+
+# Try a negative value for the user-version
+do_test pragma-8.2.14 {
+  execsql {
+    PRAGMA user_version = -450;
+  }
+} {}
+do_test pragma-8.2.15 {
+  execsql {
+    PRAGMA user_version;
+  }
+} {-450}
+} ; # ifcapable schema_version
+
+# Check to see if TEMP_STORE is memory or disk.  Return strings
+# "memory" or "disk" as appropriate.
+#
+proc check_temp_store {} {
+  db eval {
+    PRAGMA temp.cache_size = 1;
+    CREATE TEMP TABLE IF NOT EXISTS a(b);
+    DELETE FROM a;
+    INSERT INTO a VALUES(randomblob(1000));
+    INSERT INTO a SELECT * FROM a;
+    INSERT INTO a SELECT * FROM a;
+    INSERT INTO a SELECT * FROM a;
+    INSERT INTO a SELECT * FROM a;
+    INSERT INTO a SELECT * FROM a;
+    INSERT INTO a SELECT * FROM a;
+    INSERT INTO a SELECT * FROM a;
+    INSERT INTO a SELECT * FROM a;
+  }
+  db eval {PRAGMA database_list} {
+    if {$name=="temp"} {
+      set bt [btree_from_db db 1]
+      if {[btree_ismemdb $bt]} {
+        return "memory"
+      }
+      return "disk"
+    }
+  }
+  return "unknown"
+}
+
+# Application_ID
+#
+do_test pragma-8.3.1 {
+  execsql {
+    PRAGMA application_id;
+  }
+} {0}
+do_test pragma-8.3.2 {
+  execsql {PRAGMA Application_ID(12345); PRAGMA application_id;}
+} {12345}
+
+# Test temp_store and temp_store_directory pragmas
+#
+ifcapable pager_pragmas {
+do_test pragma-9.1 {
+  db close
+  sqlite3 db test.db
+  execsql {
+    PRAGMA temp_store;
+  }
+} {0}
+if {$TEMP_STORE<=1} {
+  do_test pragma-9.1.1 {
+    check_temp_store
+  } {disk}
+} else {
+  do_test pragma-9.1.1 {
+    check_temp_store
+  } {memory}
+}
+
+do_test pragma-9.2 {
+  db close
+  sqlite3 db test.db
+  execsql {
+    PRAGMA temp_store=file;
+    PRAGMA temp_store;
+  }
+} {1}
+if {$TEMP_STORE==3} {
+  # When TEMP_STORE is 3, always use memory regardless of pragma settings.
+  do_test pragma-9.2.1 {
+    check_temp_store
+  } {memory}
+} else {
+  do_test pragma-9.2.1 {
+    check_temp_store
+  } {disk}
+}
+
+do_test pragma-9.3 {
+  db close
+  sqlite3 db test.db
+  execsql {
+    PRAGMA temp_store=memory;
+    PRAGMA temp_store;
+  }
+} {2}
+if {$TEMP_STORE==0} {
+  # When TEMP_STORE is 0, always use the disk regardless of pragma settings.
+  do_test pragma-9.3.1 {
+    check_temp_store
+  } {disk}
+} else {
+  do_test pragma-9.3.1 {
+    check_temp_store
+  } {memory}
+}
+
+do_test pragma-9.4 {
+  execsql {
+    PRAGMA temp_store_directory;
+  }
+} {}
+ifcapable wsd {
+  do_test pragma-9.5 {
+    set pwd [string map {' ''} [file nativename [get_pwd]]]
+    execsql "
+      PRAGMA temp_store_directory='$pwd';
+    "
+  } {}
+  do_test pragma-9.6 {
+    execsql { 
+      PRAGMA temp_store_directory;
+    }
+  } [list [file nativename [get_pwd]]]
+  do_test pragma-9.7 {
+    catchsql { 
+      PRAGMA temp_store_directory='/NON/EXISTENT/PATH/FOOBAR';
+    }
+  } {1 {not a writable directory}}
+  do_test pragma-9.8 {
+    execsql { 
+      PRAGMA temp_store_directory='';
+    }
+  } {}
+  if {![info exists TEMP_STORE] || $TEMP_STORE<=1} {
+    ifcapable tempdb {
+      do_test pragma-9.9 {
+        execsql { 
+          PRAGMA temp_store_directory;
+          PRAGMA temp_store=FILE;
+          CREATE TEMP TABLE temp_store_directory_test(a integer);
+          INSERT INTO temp_store_directory_test values (2);
+          SELECT * FROM temp_store_directory_test;
+        }
+      } {2}
+      do_test pragma-9.10 {
+        catchsql "
+          PRAGMA temp_store_directory='$pwd';
+          SELECT * FROM temp_store_directory_test;
+        "
+      } {1 {no such table: temp_store_directory_test}}
+    }
+  }
+}
+do_test pragma-9.11 {
+  execsql {
+    PRAGMA temp_store = 0;
+    PRAGMA temp_store;
+  }
+} {0}
+do_test pragma-9.12 {
+  execsql {
+    PRAGMA temp_store = 1;
+    PRAGMA temp_store;
+  }
+} {1}
+do_test pragma-9.13 {
+  execsql {
+    PRAGMA temp_store = 2;
+    PRAGMA temp_store;
+  }
+} {2}
+do_test pragma-9.14 {
+  execsql {
+    PRAGMA temp_store = 3;
+    PRAGMA temp_store;
+  }
+} {0}
+do_test pragma-9.15 {
+  catchsql {
+    BEGIN EXCLUSIVE;
+    CREATE TEMP TABLE temp_table(t);
+    INSERT INTO temp_table VALUES('valuable data');
+    PRAGMA temp_store = 1;
+  }
+} {1 {temporary storage cannot be changed from within a transaction}}
+do_test pragma-9.16 {
+  execsql {
+    SELECT * FROM temp_table;
+    COMMIT;
+  }
+} {{valuable data}}
+
+do_test pragma-9.17 {
+  execsql {
+    INSERT INTO temp_table VALUES('valuable data II');
+    SELECT * FROM temp_table;
+  }
+} {{valuable data} {valuable data II}}
+
+do_test pragma-9.18 {
+  set rc [catch {
+    db eval {SELECT t FROM temp_table} {
+      execsql {pragma temp_store = 1}
+    }
+  } msg]
+  list $rc $msg
+} {1 {temporary storage cannot be changed from within a transaction}}
+
+} ;# ifcapable pager_pragmas
+
+ifcapable trigger {
+
+do_test pragma-10.0 {
+  catchsql {
+    DROP TABLE main.t1;
+  }
+  execsql {
+    PRAGMA count_changes = 1;
+
+    CREATE TABLE t1(a PRIMARY KEY);
+    CREATE TABLE t1_mirror(a);
+    CREATE TABLE t1_mirror2(a);
+    CREATE TRIGGER t1_bi BEFORE INSERT ON t1 BEGIN 
+      INSERT INTO t1_mirror VALUES(new.a);
+    END;
+    CREATE TRIGGER t1_ai AFTER INSERT ON t1 BEGIN 
+      INSERT INTO t1_mirror2 VALUES(new.a);
+    END;
+    CREATE TRIGGER t1_bu BEFORE UPDATE ON t1 BEGIN 
+      UPDATE t1_mirror SET a = new.a WHERE a = old.a;
+    END;
+    CREATE TRIGGER t1_au AFTER UPDATE ON t1 BEGIN 
+      UPDATE t1_mirror2 SET a = new.a WHERE a = old.a;
+    END;
+    CREATE TRIGGER t1_bd BEFORE DELETE ON t1 BEGIN 
+      DELETE FROM t1_mirror WHERE a = old.a;
+    END;
+    CREATE TRIGGER t1_ad AFTER DELETE ON t1 BEGIN 
+      DELETE FROM t1_mirror2 WHERE a = old.a;
+    END;
+  }
+} {}
+
+do_test pragma-10.1 {
+  execsql {
+    INSERT INTO t1 VALUES(randstr(10,10));
+  }
+} {1}
+do_test pragma-10.2 {
+  execsql {
+    UPDATE t1 SET a = randstr(10,10);
+  }
+} {1}
+do_test pragma-10.3 {
+  execsql {
+    DELETE FROM t1;
+  }
+} {1}
+
+} ;# ifcapable trigger
+
+ifcapable schema_pragmas {
+  do_test pragma-11.1 {
+    execsql2 {
+      pragma collation_list;
+    }
+  } {seq 0 name RTRIM seq 1 name NOCASE seq 2 name BINARY}
+  do_test pragma-11.2 {
+    db collate New_Collation blah...
+    execsql {
+      pragma collation_list;
+    }
+  } {0 New_Collation 1 RTRIM 2 NOCASE 3 BINARY}
+}
+
+ifcapable schema_pragmas&&tempdb {
+  do_test pragma-12.1 {
+    sqlite3 db2 test.db
+    execsql {
+      PRAGMA temp.table_info('abc');
+    } db2
+  } {}
+  db2 close
+
+  do_test pragma-12.2 {
+    sqlite3 db2 test.db
+    execsql {
+      PRAGMA temp.default_cache_size = 200;
+      PRAGMA temp.default_cache_size;
+    } db2
+  } {200}
+  db2 close
+
+  do_test pragma-12.3 {
+    sqlite3 db2 test.db
+    execsql {
+      PRAGMA temp.cache_size = 400;
+      PRAGMA temp.cache_size;
+    } db2
+  } {400}
+  db2 close
+}
+
+ifcapable bloblit {
+
+do_test pragma-13.1 {
+  execsql {
+    DROP TABLE IF EXISTS t4;
+    PRAGMA vdbe_trace=on;
+    PRAGMA vdbe_listing=on;
+    PRAGMA sql_trace=on;
+    CREATE TABLE t4(a INTEGER PRIMARY KEY,b);
+    INSERT INTO t4(b) VALUES(x'0123456789abcdef0123456789abcdef0123456789');
+    INSERT INTO t4(b) VALUES(randstr(30,30));
+    INSERT INTO t4(b) VALUES(1.23456);
+    INSERT INTO t4(b) VALUES(NULL);
+    INSERT INTO t4(b) VALUES(0);
+    INSERT INTO t4(b) SELECT b||b||b||b FROM t4;
+    SELECT * FROM t4;
+  }
+  execsql {
+    PRAGMA vdbe_trace=off;
+    PRAGMA vdbe_listing=off;
+    PRAGMA sql_trace=off;
+  }
+} {}
+
+} ;# ifcapable bloblit 
+
+ifcapable pager_pragmas {
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+ 
+  # EVIDENCE-OF: R-15672-33611 PRAGMA schema.page_count; Return the total
+  # number of pages in the database file.
+  #
+  do_test pragma-14.1 {
+    execsql { pragma auto_vacuum = 0 }
+    execsql { pragma page_count; pragma main.page_count }
+  } {0 0}
+
+  do_test pragma-14.2 {
+    execsql { 
+      CREATE TABLE abc(a, b, c);
+      PRAGMA page_count;
+      PRAGMA main.page_count;
+      PRAGMA temp.page_count;
+    }
+  } {2 2 0}
+  do_test pragma-14.2uc {
+    execsql {pragma PAGE_COUNT}
+  } {2}
+
+  do_test pragma-14.3 {
+    execsql { 
+      BEGIN;
+      CREATE TABLE def(a, b, c);
+      PRAGMA page_count;
+    }
+  } {3}
+  do_test pragma-14.3uc {
+    execsql {pragma PAGE_COUNT}
+  } {3}
+
+  do_test pragma-14.4 {
+    set page_size [db one {pragma page_size}]
+    expr [file size test.db] / $page_size
+  } {2}
+
+  do_test pragma-14.5 {
+    execsql {
+      ROLLBACK;
+      PRAGMA page_count;
+    }
+  } {2}
+
+  do_test pragma-14.6 {
+    forcedelete test2.db
+    sqlite3 db2 test2.db
+    execsql {
+      PRAGMA auto_vacuum = 0;
+      CREATE TABLE t1(a, b, c);
+      CREATE TABLE t2(a, b, c);
+      CREATE TABLE t3(a, b, c);
+      CREATE TABLE t4(a, b, c);
+    } db2
+    db2 close
+    execsql {
+      ATTACH 'test2.db' AS aux;
+      PRAGMA aux.page_count;
+    } 
+  } {5}
+  do_test pragma-14.6uc {
+    execsql {pragma AUX.PAGE_COUNT}
+  } {5}
+}
+
+# Test that the value set using the cache_size pragma is not reset when the
+# schema is reloaded.
+#
+ifcapable pager_pragmas {
+  db close
+  sqlite3 db test.db
+  do_test pragma-15.1 {
+    execsql {
+      PRAGMA cache_size=59;
+      PRAGMA cache_size;
+    }
+  } {59}
+  do_test pragma-15.2 {
+    sqlite3 db2 test.db
+    execsql {
+      CREATE TABLE newtable(a, b, c);
+    } db2
+    db2 close
+  } {}
+  do_test pragma-15.3 {
+    # Evaluating this statement will cause the schema to be reloaded (because
+    # the schema was changed by another connection in pragma-15.2). At one
+    # point there was a bug that reset the cache_size to its default value
+    # when this happened. 
+    execsql { SELECT * FROM sqlite_master }
+    execsql { PRAGMA cache_size }
+  } {59}
+}
+
+# Reset the sqlite3_temp_directory variable for the next run of tests:
+sqlite3 dbX :memory:
+dbX eval {PRAGMA temp_store_directory = ""}
+dbX close
+
+ifcapable lock_proxy_pragmas&&prefer_proxy_locking {
+  set sqlite_hostid_num 1
+
+  set using_proxy 0
+  foreach {name value} [array get env SQLITE_FORCE_PROXY_LOCKING] {
+    set using_proxy $value
+  }
+
+  # Test the lock_proxy_file pragmas.
+  #
+  db close
+  set env(SQLITE_FORCE_PROXY_LOCKING) "0"
+
+  sqlite3 db test.db
+  do_test pragma-16.1 {
+    execsql {
+      PRAGMA lock_proxy_file="mylittleproxy";
+      select * from sqlite_master;
+    }
+    execsql {
+      PRAGMA lock_proxy_file;
+    } 
+  } {mylittleproxy}
+
+  do_test pragma-16.2 {
+    sqlite3 db2 test.db
+    execsql {
+      PRAGMA lock_proxy_file="mylittleproxy";
+    } db2
+  } {}
+
+  db2 close
+  do_test pragma-16.2.1 {
+    sqlite3 db2 test.db
+    execsql {
+      PRAGMA lock_proxy_file=":auto:";
+      select * from sqlite_master;
+    } db2
+    execsql {
+      PRAGMA lock_proxy_file;
+    } db2
+  } {mylittleproxy}
+
+  db2 close
+  do_test pragma-16.3 {
+    sqlite3 db2 test.db
+    execsql {
+      PRAGMA lock_proxy_file="myotherproxy";
+    } db2
+    catchsql {
+      select * from sqlite_master;
+    } db2
+  } {1 {database is locked}}
+
+  do_test pragma-16.4 {
+    db2 close
+    db close
+    sqlite3 db2 test.db
+    execsql {
+      PRAGMA lock_proxy_file="myoriginalproxy";
+      PRAGMA lock_proxy_file="myotherproxy";
+      PRAGMA lock_proxy_file;
+    } db2
+  } {myotherproxy}
+
+  db2 close
+  set env(SQLITE_FORCE_PROXY_LOCKING) "1"
+  do_test pragma-16.5 {
+    sqlite3 db2 test.db
+    execsql {
+      PRAGMA lock_proxy_file=":auto:";
+      PRAGMA lock_proxy_file;
+    } db2
+  } {myotherproxy}
+  
+  do_test pragma-16.6 {
+    db2 close
+    sqlite3 db2 test2.db
+    set lockpath [execsql {
+      PRAGMA lock_proxy_file=":auto:";
+      PRAGMA lock_proxy_file;
+    } db2]
+    string match "*test2.db:auto:" $lockpath
+  } {1}
+  
+  set sqlite_hostid_num 2
+  do_test pragma-16.7 {
+    list [catch {
+      sqlite3 db test2.db
+      execsql { 
+        PRAGMA lock_proxy_file=":auto:";
+        select * from sqlite_master;
+      }
+    } msg] $msg
+  } {1 {database is locked}}
+  db close
+  
+  do_test pragma-16.8 {
+    list [catch {
+      sqlite3 db test2.db
+      execsql { select * from sqlite_master } 
+    } msg] $msg
+  } {1 {database is locked}}
+
+  db2 close
+  do_test pragma-16.8.1 {
+    execsql {
+      PRAGMA lock_proxy_file="yetanotherproxy";
+      PRAGMA lock_proxy_file;
+    } 
+  } {yetanotherproxy}
+  do_test pragma-16.8.2 {
+    execsql {
+      create table mine(x);
+    } 
+  } {}
+
+  db close
+  do_test pragma-16.9 {
+    sqlite3 db proxytest.db
+    set lockpath2 [execsql {
+      PRAGMA lock_proxy_file=":auto:";
+      PRAGMA lock_proxy_file;
+    } db]
+    string match "*proxytest.db:auto:" $lockpath2
+  } {1}
+
+  set env(SQLITE_FORCE_PROXY_LOCKING) $using_proxy
+  set sqlite_hostid_num 0
+}
+
+# Parsing of auto_vacuum settings.
+#
+foreach {autovac_setting val} {
+  0 0
+  1 1
+  2 2
+  3 0
+  -1 0
+  none 0
+  NONE 0
+  NoNe 0
+  full 1
+  FULL 1
+  incremental 2
+  INCREMENTAL 2
+  -1234 0
+  1234 0
+} {
+  do_test pragma-17.1.$autovac_setting {
+    catch {db close}
+    sqlite3 db :memory:
+    execsql "
+      PRAGMA auto_vacuum=$::autovac_setting;
+      PRAGMA auto_vacuum;
+    "
+  } $val
+}
+
+# Parsing of temp_store settings.
+#
+foreach {temp_setting val} {
+  0 0
+  1 1
+  2 2
+  3 0
+  -1 0
+  file 1
+  FILE 1
+  fIlE 1
+  memory 2
+  MEMORY 2
+  MeMoRy 2
+} {
+  do_test pragma-18.1.$temp_setting {
+    catch {db close}
+    sqlite3 db :memory:
+    execsql "
+      PRAGMA temp_store=$::temp_setting;
+      PRAGMA temp_store=$::temp_setting;
+      PRAGMA temp_store;
+    "
+  } $val
+}
+
+# The SQLITE_FCNTL_PRAGMA logic, with error handling.
+#
+db close
+testvfs tvfs
+sqlite3 db test.db -vfs tvfs
+do_test pragma-19.1 {
+  catchsql {PRAGMA error}
+} {1 {SQL logic error}}
+do_test pragma-19.2 {
+  catchsql {PRAGMA error='This is the error message'}
+} {1 {This is the error message}}
+do_test pragma-19.3 {
+  catchsql {PRAGMA error='7 This is the error message'}
+} {1 {This is the error message}}
+do_test pragma-19.4 {
+  catchsql {PRAGMA error=7}
+} {1 {out of memory}}
+do_test pragma-19.5 {
+  file tail [lindex [execsql {PRAGMA filename}] 0]
+} {test.db}
+
+if {$tcl_platform(platform)=="windows"} {
+# Test data_store_directory pragma
+#
+db close
+sqlite3 db test.db
+file mkdir data_dir
+do_test pragma-20.1 {
+  catchsql {PRAGMA data_store_directory}
+} {0 {}}
+do_test pragma-20.2 {
+  set pwd [string map {' ''} [file nativename [get_pwd]]]
+  catchsql "PRAGMA data_store_directory='$pwd';"
+} {0 {}}
+do_test pragma-20.3 {
+  catchsql {PRAGMA data_store_directory}
+} [list 0 [list [file nativename [get_pwd]]]]
+do_test pragma-20.4 {
+  set pwd [string map {' ''} [file nativename \
+    [file join [get_pwd] data_dir]]]
+  catchsql "PRAGMA data_store_directory='$pwd';"
+} {0 {}}
+do_test pragma-20.5 {
+  sqlite3 db2 test2.db
+  catchsql "PRAGMA database_list;" db2
+} [list 0 [list 0 main [file nativename \
+    [file join [get_pwd] data_dir test2.db]]]]
+catch {db2 close}
+do_test pragma-20.6 {
+  sqlite3 db2 [file join [get_pwd] test2.db]
+  catchsql "PRAGMA database_list;" db2
+} [list 0 [list 0 main [file nativename \
+    [file join [get_pwd] test2.db]]]]
+catch {db2 close}
+do_test pragma-20.7 {
+  catchsql "PRAGMA data_store_directory='';"
+} {0 {}}
+do_test pragma-20.8 {
+  catchsql {PRAGMA data_store_directory}
+} {0 {}}
+
+forcedelete data_dir
+} ;# endif windows
+
+database_may_be_corrupt
+if {![nonzero_reserved_bytes]} {
+
+  do_test 21.1 {
+    # Create a corrupt database in testerr.db. And a non-corrupt at test.db.
+    #
+    db close
+    forcedelete test.db
+    sqlite3 db test.db
+    execsql { 
+      PRAGMA page_size = 1024;
+      PRAGMA auto_vacuum = 0;
+      CREATE TABLE t1(a PRIMARY KEY, b);
+      INSERT INTO t1 VALUES(1, 1);
+    }
+    for {set i 0} {$i < 10} {incr i} {
+      execsql { INSERT INTO t1 SELECT a + (1 << $i), b + (1 << $i) FROM t1 }
+    }
+    db close
+    forcecopy test.db testerr.db
+    hexio_write testerr.db 15000 [string repeat 55 100]
+  } {100}
+  
+  set mainerr {*** in database main ***
+Multiple uses for byte 672 of page 15}
+  set auxerr {*** in database aux ***
+Multiple uses for byte 672 of page 15}
+  
+  set mainerr {/{\*\*\* in database main \*\*\*
+Multiple uses for byte 672 of page 15}.*/}
+  set auxerr {/{\*\*\* in database aux \*\*\*
+Multiple uses for byte 672 of page 15}.*/}
+  
+  do_test 22.2 {
+    catch { db close }
+    sqlite3 db testerr.db
+    execsql { PRAGMA integrity_check }
+  } $mainerr
+  
+  do_test 22.3.1 {
+    catch { db close }
+    sqlite3 db test.db
+    execsql { 
+      ATTACH 'testerr.db' AS 'aux';
+      PRAGMA integrity_check;
+    }
+  } $auxerr
+  do_test 22.3.2 {
+    execsql { PRAGMA main.integrity_check; }
+  } {ok}
+  do_test 22.3.3 {
+    execsql { PRAGMA aux.integrity_check; }
+  } $auxerr
+  
+  do_test 22.4.1 {
+    catch { db close }
+    sqlite3 db testerr.db
+    execsql { 
+      ATTACH 'test.db' AS 'aux';
+      PRAGMA integrity_check;
+    }
+  } $mainerr
+  do_test 22.4.2 {
+    execsql { PRAGMA main.integrity_check; }
+  } $mainerr
+  do_test 22.4.3 {
+    execsql { PRAGMA aux.integrity_check; }
+  } {ok}
+}
+  
+db close
+forcedelete test.db test.db-wal test.db-journal
+sqlite3 db test.db
+sqlite3 db2 test.db
+do_test 23.1 {
+  db eval {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY,b,c,d);
+    CREATE INDEX i1 ON t1(b,c);
+    CREATE INDEX i2 ON t1(c,d);
+    CREATE INDEX i2x ON t1(d COLLATE nocase, c DESC);
+    CREATE INDEX i3 ON t1(d,b+c,c);
+    CREATE TABLE t2(x INTEGER REFERENCES t1);
+  }
+  db2 eval {SELECT name FROM sqlite_master}
+} {t1 i1 i2 i2x i3 t2}
+do_test 23.2a {
+  db eval {
+    DROP INDEX i2;
+    CREATE INDEX i2 ON t1(c,d,b);
+  }
+  capture_pragma db2 out {PRAGMA index_info(i2)}
+  db2 eval {SELECT cid, name, '|' FROM out ORDER BY seqno}
+} {2 c | 3 d | 1 b |}
+
+# EVIDENCE-OF: R-56143-29319 PRAGMA schema.index_xinfo(index-name); This
+# pragma returns information about every column in an index.
+#
+# EVIDENCE-OF: R-45970-35618 Unlike this index_info pragma, this pragma
+# returns information about every column in the index, not just the key
+# columns.
+#
+do_test 23.2b {
+  capture_pragma db2 out {PRAGMA index_xinfo(i2)}
+  db2 eval {SELECT cid, name, "desc", coll, "key", '|' FROM out ORDER BY seqno}
+} {2 c 0 BINARY 1 | 3 d 0 BINARY 1 | 1 b 0 BINARY 1 | -1 {} 0 BINARY 0 |}
+
+# (The first column of output from PRAGMA index_xinfo is...)
+# EVIDENCE-OF: R-00197-14279 The rank of the column within the index. (0
+# means left-most. Key columns come before auxiliary columns.)
+#
+# (The second column of output from PRAGMA index_xinfo is...)
+# EVIDENCE-OF: R-06603-49335 The rank of the column within the table
+# being indexed, or -1 if the index-column is the rowid of the table
+# being indexed and -2 if the index is on an expression.
+#
+# (The third column of output from PRAGMA index_xinfo is...)
+# EVIDENCE-OF: R-40641-22898 The name of the column being indexed, or
+# NULL if the index-column is the rowid of the table being indexed or an
+# expression.
+#
+# (The fourth column of output from PRAGMA index_xinfo is...)
+# EVIDENCE-OF: R-11847-09179 1 if the index-column is sorted in reverse
+# (DESC) order by the index and 0 otherwise.
+#
+# (The fifth column of output from PRAGMA index_xinfo is...)
+# EVIDENCE-OF: R-15313-19540 The name for the collating sequence used to
+# compare values in the index-column.
+#
+# (The sixth column of output from PRAGMA index_xinfo is...)
+# EVIDENCE-OF: R-14310-64553 1 if the index-column is a key column and 0
+# if the index-column is an auxiliary column.
+#
+do_test 23.2c {
+  db2 eval {PRAGMA index_xinfo(i2)}
+} {0 2 c 0 BINARY 1 1 3 d 0 BINARY 1 2 1 b 0 BINARY 1 3 -1 {} 0 BINARY 0}
+do_test 23.2d {
+  db2 eval {PRAGMA index_xinfo(i2x)}
+} {0 3 d 0 nocase 1 1 2 c 1 BINARY 1 2 -1 {} 0 BINARY 0}
+do_test 23.2e {
+  db2 eval {PRAGMA index_xinfo(i3)}
+} {0 3 d 0 BINARY 1 1 -2 {} 0 BINARY 1 2 2 c 0 BINARY 1 3 -1 {} 0 BINARY 0}
+
+# EVIDENCE-OF: R-64103-17776 PRAGMA schema.index_list(table-name); This
+# pragma returns one row for each index associated with the given table.
+#
+# (The first column of output from PRAGMA index_list is...)
+# EVIDENCE-OF: R-02753-24748 A sequence number assigned to each index
+# for internal tracking purposes.
+#
+# (The second column of output from PRAGMA index_list is...)
+# EVIDENCE-OF: R-35496-03635 The name of the index.
+#
+# (The third column of output from PRAGMA index_list is...)
+# EVIDENCE-OF: R-57301-64506 "1" if the index is UNIQUE and "0" if not.
+#
+# (The fourth column of output from PRAGMA index_list is...)
+# EVIDENCE-OF: R-36609-39554 "c" if the index was created by a CREATE
+# INDEX statement, "u" if the index was created by a UNIQUE constraint,
+# or "pk" if the index was created by a PRIMARY KEY constraint.
+#
+do_test 23.3 {
+  db eval {
+    DROP INDEX IF EXISTS i3;
+    CREATE INDEX i3 ON t1(d,b,c);
+  }
+  capture_pragma db2 out {PRAGMA index_list(t1)}
+  db2 eval {SELECT seq, name, "unique", origin, '|' FROM out ORDER BY seq}
+} {0 i3 0 c | 1 i2 0 c | 2 i2x 0 c | 3 i1 0 c |}
+ifcapable altertable {
+  do_test 23.4 {
+    db eval {
+      ALTER TABLE t1 ADD COLUMN e;
+    }
+    db2 eval {
+      PRAGMA table_info(t1);
+    }
+  } {/4 e {} 0 {} 0/}
+}
+do_test 23.5 {
+  db eval {
+    DROP TABLE t2;
+    CREATE TABLE t2(x, y INTEGER REFERENCES t1);
+  }
+  db2 eval {
+    PRAGMA foreign_key_list(t2);
+  }
+} {0 0 t1 y {} {NO ACTION} {NO ACTION} NONE}
+db2 close
+
+ifcapable !has_codec {
+  reset_db
+  do_execsql_test 24.0 {
+    PRAGMA page_size = 1024;
+    CREATE TABLE t1(a, b, c);
+    CREATE INDEX i1 ON t1(b);
+    INSERT INTO t1 VALUES('a', 'b', 'c');
+    PRAGMA integrity_check;
+  } {ok}
+  
+  set r [db one {SELECT rootpage FROM sqlite_master WHERE name = 't1'}]
+  db close
+  hexio_write test.db [expr $r*1024 - 16] 000000000000000701040f0f1f616263
+  
+  sqlite3 db test.db
+  do_catchsql_test 24.1 {
+    SELECT * FROM t1;
+  } {1 {database disk image is malformed}}
+  do_catchsql_test 24.2 {
+    PRAGMA integrity_check;
+  } {0 {{database disk image is malformed}}}
+}  
+database_never_corrupt
+
+# 2023-03-27.  Register allocation issue in integrity_check discovered
+# by new assert() statements added in [6f8b97f31a4c8552].
+# dbsqlfuzz dc9ab26037cf5ef797d28cd1ae0855ade584216d
+# tag-20230327-1
+#
+reset_db
+do_execsql_test 25.0 {
+  CREATE TABLE t1(a INT, b AS (a*2) NOT NULL);
+  CREATE TEMP TABLE t2(a PRIMARY KEY, b, c UNIQUE) WITHOUT ROWID;
+  CREATE UNIQUE INDEX t2x ON t2(c,b);
+  PRAGMA integrity_check;
+} ok
+finish_test
diff --git a/test/pragma2.test b/test/pragma2.test
new file mode 100644
index 0000000000000000000000000000000000000000..5896e52687cfd8123dd521a9c94362b2b6c0165b
--- /dev/null
+++ b/test/pragma2.test
@@ -0,0 +1,275 @@
+# 2002 March 6
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests for the PRAGMA command.
+#
+# $Id: pragma2.test,v 1.4 2007/10/09 08:29:33 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Test organization:
+#
+# pragma2-1.*: Test freelist_count pragma on the main database.
+# pragma2-2.*: Test freelist_count pragma on an attached database.
+# pragma2-3.*: Test trying to write to the freelist_count is a no-op.
+# pragma2-4.*: Tests for PRAGMA cache_spill
+#
+
+ifcapable !pragma||!schema_pragmas {
+  finish_test
+  return
+}
+
+test_set_config_pagecache 0 0
+
+# Delete the preexisting database to avoid the special setup
+# that the "all.test" script does.
+#
+db close
+delete_file test.db test.db-journal
+delete_file test3.db test3.db-journal
+sqlite3 db test.db; set DB [sqlite3_connection_pointer db]
+db eval {PRAGMA auto_vacuum=0}
+
+
+# EVIDENCE-OF: R-11211-21323 PRAGMA schema.freelist_count; Return the
+# number of unused pages in the database file.
+#
+do_test pragma2-1.1 {
+  execsql {
+    PRAGMA freelist_count;
+  }
+} {0}
+do_test pragma2-1.2 {
+  execsql {
+    CREATE TABLE abc(a, b, c);
+    PRAGMA freelist_count;
+  }
+} {0}
+do_test pragma2-1.3 {
+  execsql {
+    DROP TABLE abc;
+    PRAGMA freelist_count;
+  }
+} {1}
+do_test pragma2-1.4 {
+  execsql {
+    PRAGMA main.freelist_count;
+  }
+} {1}
+
+forcedelete test2.db
+forcedelete test2.db-journal
+
+ifcapable attach {
+  do_test pragma2-2.1 {
+    execsql {
+      ATTACH 'test2.db' AS aux;
+      PRAGMA aux.auto_vacuum=OFF;
+      PRAGMA aux.freelist_count;
+    }
+  } {0}
+  do_test pragma2-2.2 {
+    execsql {
+      CREATE TABLE aux.abc(a, b, c);
+      PRAGMA aux.freelist_count;
+    }
+  } {0}
+  do_test pragma2-2.3 {
+    set ::val [string repeat 0123456789 1000]
+    execsql {
+      INSERT INTO aux.abc VALUES(1, 2, $::val);
+      PRAGMA aux.freelist_count;
+    }
+  } {0}
+  do_test pragma2-2.4 {
+    expr {[file size test2.db] / 1024}
+  } {11}
+  do_test pragma2-2.5 {
+    execsql {
+      DELETE FROM aux.abc;
+      PRAGMA aux.freelist_count;
+    }
+  } {9}
+  
+  do_test pragma2-3.1 {
+    execsql {
+      PRAGMA aux.freelist_count;
+      PRAGMA main.freelist_count;
+      PRAGMA freelist_count;
+    }
+  } {9 1 1}
+  do_test pragma2-3.2 {
+    execsql {
+      PRAGMA freelist_count = 500;
+      PRAGMA freelist_count;
+    }
+  } {1 1}
+  do_test pragma2-3.3 {
+    execsql {
+      PRAGMA aux.freelist_count = 500;
+      PRAGMA aux.freelist_count;
+    }
+  } {9 9}
+}
+
+# Default setting of PRAGMA cache_spill is always ON
+#
+# EVIDENCE-OF: R-63549-59887 PRAGMA cache_spill; PRAGMA
+# cache_spill=boolean; PRAGMA schema.cache_spill=N;
+#
+# EVIDENCE-OF: R-23955-02765 Cache_spill is enabled by default
+#
+db close
+delete_file test.db test.db-journal
+delete_file test2.db test2.db-journal
+sqlite3 db test.db
+do_execsql_test pragma2-4.1 {
+  PRAGMA main.cache_size=2000;
+  PRAGMA temp.cache_size=2000;
+  PRAGMA cache_spill;
+  PRAGMA main.cache_spill;
+  PRAGMA temp.cache_spill;
+} {2000 2000 2000}
+do_execsql_test pragma2-4.2 {
+  PRAGMA cache_spill=OFF;
+  PRAGMA cache_spill;
+  PRAGMA main.cache_spill;
+  PRAGMA temp.cache_spill;
+} {0 0 0}
+do_execsql_test pragma2-4.3 {
+  PRAGMA page_size=1024;
+  PRAGMA cache_size=50;
+  BEGIN;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c, d);
+  INSERT INTO t1 VALUES(1, randomblob(400), 1, randomblob(400));
+  INSERT INTO t1 SELECT a+1, randomblob(400), a+1, randomblob(400) FROM t1;
+  INSERT INTO t1 SELECT a+2, randomblob(400), a+2, randomblob(400) FROM t1;
+  INSERT INTO t1 SELECT a+4, randomblob(400), a+4, randomblob(400) FROM t1;
+  INSERT INTO t1 SELECT a+8, randomblob(400), a+8, randomblob(400) FROM t1;
+  INSERT INTO t1 SELECT a+16, randomblob(400), a+16, randomblob(400) FROM t1;
+  INSERT INTO t1 SELECT a+32, randomblob(400), a+32, randomblob(400) FROM t1;
+  INSERT INTO t1 SELECT a+64, randomblob(400), a+64, randomblob(400) FROM t1;
+  COMMIT;
+  ATTACH 'test2.db' AS aux1;
+  CREATE TABLE aux1.t2(a INTEGER PRIMARY KEY, b, c, d);
+  INSERT INTO t2 SELECT * FROM t1;
+  DETACH aux1;
+  PRAGMA cache_spill=ON;
+} {}
+sqlite3_release_memory
+#
+# EVIDENCE-OF: R-07634-40532 The cache_spill pragma enables or disables
+# the ability of the pager to spill dirty cache pages to the database
+# file in the middle of a transaction.
+#
+do_test pragma2-4.4 {
+  db eval {
+    BEGIN;
+    UPDATE t1 SET c=c+1;
+    PRAGMA lock_status;
+  }
+} {main exclusive temp unknown}  ;# EXCLUSIVE lock due to cache spill
+do_test pragma2-4.5.1 {
+  db eval {
+    ROLLBACK;
+    PRAGMA cache_spill=OFF;
+    PRAGMA Cache_Spill;
+    BEGIN;
+    UPDATE t1 SET c=c+1;
+    PRAGMA lock_status;
+  }
+} {0 main reserved temp unknown}   ;# No cache spill, so no exclusive lock
+
+
+# EVIDENCE-OF: R-34657-61226 The "PRAGMA cache_spill=N" form of this
+# pragma sets a minimum cache size threshold required for spilling to
+# occur.
+do_test pragma2-4.5.2 {
+  db eval {
+    ROLLBACK;
+    PRAGMA cache_spill=100000;
+    PRAGMA cache_spill;
+    BEGIN;
+    UPDATE t1 SET c=c+1;
+    PRAGMA lock_status;
+  }
+} {100000 main reserved temp unknown}   ;# Big spill threshold -> no excl lock
+ifcapable !memorymanage {
+  do_test pragma2-4.5.3 {
+    db eval {
+      ROLLBACK;
+      PRAGMA cache_spill=25;
+      PRAGMA main.cache_spill;
+      BEGIN;
+      UPDATE t1 SET c=c+1;
+      PRAGMA lock_status;
+    }
+  } {50 main exclusive temp unknown}   ;# Small cache spill -> exclusive lock
+  do_test pragma2-4.5.4 {
+    db eval {
+      ROLLBACK;
+      PRAGMA cache_spill(-25);
+      PRAGMA main.cache_spill;
+      BEGIN;
+      UPDATE t1 SET c=c+1;
+      PRAGMA lock_status;
+    }
+  } {50 main exclusive temp unknown}   ;# Small cache spill -> exclusive lock
+}
+
+
+# Verify that newly attached databases inherit the cache_spill=OFF
+# setting.
+#
+do_execsql_test pragma2-4.6 {
+  ROLLBACK;
+  PRAGMA cache_spill=OFF;
+  ATTACH 'test2.db' AS aux1;
+  PRAGMA aux1.cache_size=50;
+  BEGIN;
+  UPDATE t2 SET c=c+1;
+  PRAGMA lock_status;
+} {main unlocked temp unknown aux1 reserved}
+do_execsql_test pragma2-4.7 {
+  COMMIT;
+}
+sqlite3_release_memory
+do_execsql_test pragma2-4.8 {
+  PRAGMA cache_spill=ON; -- Applies to all databases
+  BEGIN;
+  UPDATE t2 SET c=c-1;
+  PRAGMA lock_status;
+} {main unlocked temp unknown aux1 exclusive}
+db close
+forcedelete test.db
+sqlite3 db test.db
+
+do_execsql_test pragma2-5.1 {
+  PRAGMA page_size=16384;
+  CREATE TABLE t1(x);
+  PRAGMA cache_size=2;
+  PRAGMA cache_spill=YES;
+  PRAGMA cache_spill;
+} {2}
+do_execsql_test pragma2-5.2 {
+  PRAGMA cache_spill=NO;
+  PRAGMA cache_spill;
+} {0}
+do_execsql_test pragma2-5.3 {
+  PRAGMA cache_spill(-51);
+  PRAGMA cache_spill;
+} {3}
+   
+test_restore_config_pagecache
+finish_test
diff --git a/test/pragma3.test b/test/pragma3.test
new file mode 100644
index 0000000000000000000000000000000000000000..c4794c743c65589c6d27bdae51b91b4cb703ebd3
--- /dev/null
+++ b/test/pragma3.test
@@ -0,0 +1,287 @@
+# 2014-12-19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests for PRAGMA data_version command.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+if {[sqlite3 -has-codec]} {
+  finish_test
+  return
+}
+
+do_execsql_test pragma3-100 {
+  PRAGMA data_version;
+} {1}
+do_execsql_test pragma3-101 {
+  PRAGMA temp.data_version;
+} {1}
+
+# Writing to the pragma is a no-op 
+do_execsql_test pragma3-102 {
+  PRAGMA main.data_version=1234;
+  PRAGMA main.data_version;
+} {1 1}
+
+# EVIDENCE-OF: R-27726-60934 The "PRAGMA data_version" command provides
+# an indication that the database file has been modified.
+#
+# EVIDENCE-OF: R-47505-58569 The "PRAGMA data_version" value is
+# unchanged for commits made on the same database connection.
+#
+do_execsql_test pragma3-110 {
+  PRAGMA data_version;
+  BEGIN IMMEDIATE;
+  PRAGMA data_version;
+  CREATE TABLE t1(a);
+  INSERT INTO t1 VALUES(100),(200),(300);
+  PRAGMA data_version;
+  COMMIT;
+  SELECT * FROM t1;
+  PRAGMA data_version;
+} {1 1 1 100 200 300 1}
+
+sqlite3 db2 test.db
+do_test pragma3-120 {
+  db2 eval {
+    SELECT * FROM t1;
+    PRAGMA data_version;
+  }
+} {100 200 300 1}
+
+do_execsql_test pragma3-130 {
+  PRAGMA data_version;
+  BEGIN IMMEDIATE;
+  PRAGMA data_version;
+  INSERT INTO t1 VALUES(400),(500);
+  PRAGMA data_version;
+  COMMIT;
+  SELECT * FROM t1;
+  PRAGMA data_version;
+  PRAGMA shrink_memory;
+} {1 1 1 100 200 300 400 500 1}
+
+# EVIDENCE-OF: R-63005-41812 The integer values returned by two
+# invocations of "PRAGMA data_version" from the same connection will be
+# different if changes were committed to the database by any other
+# connection in the interim.
+#
+# Value went from 1 in pragma3-120 to 2 here.
+#
+do_test pragma3-140 {
+  db2 eval {
+    SELECT * FROM t1;
+    PRAGMA data_version;
+    BEGIN IMMEDIATE;
+    PRAGMA data_version;
+    UPDATE t1 SET a=a+1;
+    COMMIT;
+    SELECT * FROM t1;
+    PRAGMA data_version;
+  }
+} {100 200 300 400 500 2 2 101 201 301 401 501 2}
+do_execsql_test pragma3-150 {
+  SELECT * FROM t1;
+  PRAGMA data_version;
+} {101 201 301 401 501 2}
+
+#
+do_test pragma3-160 {
+  db eval {
+    BEGIN;
+    PRAGMA data_version;
+    UPDATE t1 SET a=555 WHERE a=501;
+    PRAGMA data_version;
+    SELECT * FROM t1 ORDER BY a;
+    PRAGMA data_version;
+  }
+} {2 2 101 201 301 401 555 2}
+do_test pragma3-170 {
+  db2 eval {
+    PRAGMA data_version;
+  }
+} {2}
+do_test pragma3-180 {
+  db eval {
+    COMMIT;
+    PRAGMA data_version;
+  }
+} {2}
+do_test pragma3-190 {
+  db2 eval {
+    PRAGMA data_version;
+  }
+} {3}
+
+# EVIDENCE-OF: R-19326-44825 The "PRAGMA data_version" value is a local
+# property of each database connection and so values returned by two
+# concurrent invocations of "PRAGMA data_version" on separate database
+# connections are often different even though the underlying database is
+# identical.
+#
+do_test pragma3-195 {
+  expr {[db eval {PRAGMA data_version}]!=[db2 eval {PRAGMA data_version}]}
+} {1}
+
+# EVIDENCE-OF: R-54562-06892 The behavior of "PRAGMA data_version" is
+# the same for all database connections, including database connections
+# in separate processes and shared cache database connections.
+#
+# The next block checks the behavior for separate processes.
+#
+do_test pragma3-200 {
+  db eval {PRAGMA data_version; SELECT * FROM t1;}
+} {2 101 201 301 401 555}
+do_test pragma3-201 {
+  set fd [open pragma3.txt wb]
+  puts $fd {
+     sqlite3 db test.db;
+     db eval {DELETE FROM t1 WHERE a>300};
+     db close;
+     exit;
+  }
+  close $fd
+  exec [info nameofexec] pragma3.txt
+  forcedelete pragma3.txt
+  db eval {
+    PRAGMA data_version;
+    SELECT * FROM t1;
+  }
+} {3 101 201}
+db2 close
+db close
+
+# EVIDENCE-OF: R-54562-06892 The behavior of "PRAGMA data_version" is
+# the same for all database connections, including database connections
+# in separate processes and shared cache database connections.
+#
+# The next block checks that behavior is the same for shared-cache.
+#
+ifcapable shared_cache {
+  set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
+  sqlite3 db test.db
+  sqlite3 db2 test.db
+  do_test pragma3-300 {
+    db eval {
+      PRAGMA data_version;
+      BEGIN;
+      CREATE TABLE t3(a,b,c);
+      CREATE TABLE t4(x,y,z);
+      INSERT INTO t4 VALUES(123,456,789);
+      PRAGMA data_version;
+      COMMIT;
+      PRAGMA data_version;
+    }
+  } {1 1 1}
+  do_test pragma3-310 {
+    db2 eval {
+      PRAGMA data_version;
+      BEGIN;
+      INSERT INTO t3(a,b,c) VALUES('abc','def','ghi');
+      SELECT * FROM t3;
+      PRAGMA data_version;
+    }
+  } {2 abc def ghi 2}
+  # The transaction in db2 has not yet committed, so the data_version in
+  # db is unchanged.
+  do_test pragma3-320 {
+    db eval {
+      PRAGMA data_version;
+      SELECT * FROM t4;
+    }
+  } {1 123 456 789}
+  do_test pragma3-330 {
+    db2 eval {
+      COMMIT;
+      PRAGMA data_version;
+      SELECT * FROM t4;
+    }
+  } {2 123 456 789}
+  do_test pragma3-340 {
+    db eval {
+      PRAGMA data_version;
+      SELECT * FROM t3;
+      SELECT * FROM t4;
+    }
+  } {2 abc def ghi 123 456 789}
+  db2 close
+  db close
+  sqlite3_enable_shared_cache $::enable_shared_cache
+}
+
+# Make sure this also works in WAL mode
+#
+# This will not work with the in-memory journal permutation, as opening
+# [db2] switches the journal mode back to "memory"
+#
+if {[wal_is_capable]} {
+if {[permutation]!="inmemory_journal"} {
+
+  sqlite3 db test.db
+  db eval {PRAGMA journal_mode=WAL}
+  sqlite3 db2 test.db
+  do_test pragma3-400 {
+    db eval {
+      PRAGMA data_version;
+      PRAGMA journal_mode;
+      SELECT * FROM t1;
+    }
+  } {2 wal 101 201}
+  do_test pragma3-410 {
+    db2 eval {
+      PRAGMA data_version;
+      PRAGMA journal_mode;
+      SELECT * FROM t1;
+    }
+  } {2 wal 101 201}
+  do_test pragma3-420 {
+    db eval {UPDATE t1 SET a=111*(a/100); PRAGMA data_version; SELECT * FROM t1}
+  } {2 111 222}
+  do_test pragma3-430 {
+    db2 eval {PRAGMA data_version; SELECT * FROM t1;}
+  } {3 111 222}
+  db2 close
+}
+}
+
+#-------------------------------------------------------------------------
+# Check that empty write transactions do not cause the return of "PRAGMA
+# data_version" to be decremented with journal_mode=PERSIST and
+# locking_mode=EXCLUSIVE
+#
+foreach {tn sql} {
+  A {
+  }
+  B {
+    PRAGMA journal_mode = PERSIST;
+    PRAGMA locking_mode = EXCLUSIVE;
+  }
+} {
+  reset_db
+  execsql $sql
+
+  do_execsql_test pragma3-510$tn {
+    CREATE TABLE t1(x, y);
+    INSERT INTO t1 VALUES(1, 2);
+    PRAGMA data_version;
+  } {1}
+
+  do_execsql_test pragma3-520$tn {
+    BEGIN EXCLUSIVE;
+    COMMIT;
+    PRAGMA data_version;
+  } {1}
+}
+
+finish_test
diff --git a/test/pragma4.test b/test/pragma4.test
new file mode 100644
index 0000000000000000000000000000000000000000..0466960cab30bf4f85edfb9e3f75888916365b9f
--- /dev/null
+++ b/test/pragma4.test
@@ -0,0 +1,335 @@
+# 2017 Jan 4
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix pragma4
+
+proc do_pragma_ncol_test {tn sql nCol} {
+  set ::stmt 0
+  set ::stmt [sqlite3_prepare_v2 db $sql -1 dummy]
+  uplevel [list do_test $tn { sqlite3_column_count $::stmt } $nCol]
+  sqlite3_finalize $::stmt
+}
+
+# If there is no RHS argument, the following PRAGMA statements operate as
+# queries, returning a single row containing a single column.
+#
+# Or, if there is RHS argument, they return zero rows of zero columns.
+#
+foreach {tn sql} {
+  1 "PRAGMA application_id = 10"
+  2 "PRAGMA automatic_index = 1"
+  3 "PRAGMA auto_vacuum = 1"
+  4 "PRAGMA cache_size = -100"
+  5 "PRAGMA cache_spill = 1"
+  6 "PRAGMA cell_size_check = 1"
+  7 "PRAGMA checkpoint_fullfsync = 1"
+  8 "PRAGMA count_changes = 1"
+  9 "PRAGMA default_cache_size = 100"
+ 10 "PRAGMA defer_foreign_keys = 1"
+ 11 "PRAGMA empty_result_callbacks = 1"
+ 12 "PRAGMA encoding = 'utf-8'"
+ 13 "PRAGMA foreign_keys = 1"
+ 14 "PRAGMA full_column_names = 1"
+ 15 "PRAGMA fullfsync = 1"
+ 16 "PRAGMA ignore_check_constraints = 1"
+ 18 "PRAGMA page_size = 511"
+ 19 "PRAGMA page_size = 512"
+ 20 "PRAGMA query_only = false"
+ 21 "PRAGMA read_uncommitted = true"
+ 22 "PRAGMA recursive_triggers = false"
+ 23 "PRAGMA reverse_unordered_selects = false"
+ 24 "PRAGMA schema_version = 211"
+ 25 "PRAGMA short_column_names = 1"
+ 26 "PRAGMA synchronous = full"
+ 29 "PRAGMA temp_store = memory"
+ 30 "PRAGMA user_version = 405"
+ 31 "PRAGMA writable_schema = 1"
+} {
+  reset_db
+
+  # Without RHS:
+  do_pragma_ncol_test 1.$tn.1 [lindex [split $sql =] 0] 1
+
+  # With RHS:
+  do_pragma_ncol_test 1.$tn.2 $sql  0
+}
+
+# These pragmas should never return any values.
+#
+foreach {tn sql} {
+  1 "PRAGMA shrink_memory"
+  2 "PRAGMA shrink_memory = 10"
+  3 "PRAGMA case_sensitive_like = 0"
+  4 "PRAGMA case_sensitive_like = 1"
+  5 "PRAGMA case_sensitive_like"
+} {
+
+  do_pragma_ncol_test 1.$tn.1 $sql 0
+}
+
+# EXPLAIN on a PRAGMA integrity_check.
+# Verify that that P4_INTARRAY argument to OP_IntegrityCk is rendered
+# correctly.
+#
+catch {db close}
+forcedelete test.db
+sqlite3 db test.db
+do_test pragma4-2.100 {
+  db eval {
+    PRAGMA page_size=512;
+    CREATE TABLE t1(x);
+    WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<10000)
+    INSERT INTO t1(x) SELECT zeroblob(300) FROM c;
+    CREATE TABLE t2(y);
+    DROP TABLE t1;
+  }
+  string map {\[ x \] x \173 {} \175 {}} \
+    [db eval {EXPLAIN PRAGMA integrity_check}]
+} {/ IntegrityCk 1 2 8 x[0-9]+,1x /}
+
+
+#--------------------------------------------------------------------------
+#
+reset_db
+forcedelete test.db2
+do_execsql_test 4.1.1 {
+  CREATE TABLE t1(a, b, c);
+  ATTACH 'test.db2' AS aux;
+  CREATE TABLE aux.t2(d, e, f);
+}
+do_execsql_test 4.1.2 { PRAGMA table_info = t1 } {
+  0 a {} 0 {} 0 1 b {} 0 {} 0 2 c {} 0 {} 0
+}
+do_execsql_test 4.1.3 { PRAGMA table_info = t2 } {
+  0 d {} 0 {} 0 1 e {} 0 {} 0 2 f {} 0 {} 0
+}
+do_test 4.1.4 { 
+  sqlite3 db3 test.db
+  sqlite3 db2 test.db2
+  execsql { DROP TABLE t1 } db3
+  execsql { DROP TABLE t2 } db2
+} {}  
+if {[permutation]=="prepare"} {
+  do_catchsql_test 4.1.5a { 
+    PRAGMA table_info(t1) 
+  } {1 {database schema has changed}}
+}
+do_execsql_test 4.1.5 { 
+  PRAGMA table_info(t1) 
+}
+do_execsql_test 4.1.6 { PRAGMA table_info(t2) }
+
+db2 close
+db3 close
+reset_db
+forcedelete test.db2
+do_execsql_test 4.2.1 {
+  CREATE TABLE t1(a, b, c);
+  ATTACH 'test.db2' AS aux;
+  CREATE TABLE aux.t2(d, e, f);
+}
+ifcapable vtab {
+  do_execsql_test 4.2.2 { SELECT * FROM pragma_table_info('t1') } {
+    0 a {} 0 {} 0 1 b {} 0 {} 0 2 c {} 0 {} 0
+  }
+  do_execsql_test 4.2.3 { SELECT * FROM pragma_table_info('t2') } {
+    0 d {} 0 {} 0 1 e {} 0 {} 0 2 f {} 0 {} 0
+  }
+}
+do_test 4.2.4 { 
+  sqlite3 db3 test.db
+  sqlite3 db2 test.db2
+  execsql { DROP TABLE t1 } db3
+  execsql { DROP TABLE t2 } db2
+} {}
+ifcapable vtab {
+  do_execsql_test 4.2.5 { SELECT * FROM pragma_table_info('t1') } 
+  do_execsql_test 4.2.6 { SELECT * FROM pragma_table_info('t2') } 
+}
+
+db2 close
+db3 close
+reset_db
+forcedelete test.db2
+do_execsql_test 4.3.1 {
+  CREATE TABLE t1(a, b, c);
+  CREATE INDEX i1 ON t1(b);
+  ATTACH 'test.db2' AS aux;
+  CREATE TABLE aux.t2(d, e, f);
+  CREATE INDEX aux.i2 ON t2(e);
+}
+ifcapable vtab {
+  do_execsql_test 4.3.2 { SELECT * FROM pragma_index_info('i1') } {0 1 b}
+  do_execsql_test 4.3.3 { SELECT * FROM pragma_index_info('i2') } {0 1 e}
+}
+do_test 4.3.4 { 
+  sqlite3 db3 test.db
+  sqlite3 db2 test.db2
+  execsql { DROP INDEX i1 } db3
+  execsql { DROP INDEX i2 } db2
+} {}
+if {[permutation]=="prepare"} { catchsql { SELECT * FROM sqlite_master } }
+ifcapable vtab {
+  do_execsql_test 4.3.5 { SELECT * FROM pragma_index_info('i1') } 
+  do_execsql_test 4.3.6 { SELECT * FROM pragma_index_info('i2') } 
+}
+
+execsql {SELECT * FROM main.sqlite_master, aux.sqlite_master}
+do_execsql_test 4.4.0 {
+  CREATE INDEX main.i1 ON t1(b, c);
+  CREATE INDEX aux.i2 ON t2(e, f);
+}
+ifcapable vtab {
+  do_execsql_test 4.4.1 { SELECT * FROM pragma_index_list('t1') } {0 i1 0 c 0}
+  do_execsql_test 4.4.2 { SELECT * FROM pragma_index_list('t2') } {0 i2 0 c 0}
+}
+do_test 4.4.3 { 
+  execsql { DROP INDEX i1 } db3
+  execsql { DROP INDEX i2 } db2
+} {}
+if {[permutation]=="prepare"} { 
+  catchsql { SELECT * FROM sqlite_master, aux.sqlite_master }
+}
+ifcapable vtab {
+  do_execsql_test 4.4.5 { SELECT * FROM pragma_index_list('t1') } {}
+  do_execsql_test 4.4.6 { SELECT * FROM pragma_index_list('t2') } {}
+}
+execsql {SELECT * FROM main.sqlite_master, aux.sqlite_master}
+
+do_execsql_test 4.5.0 {
+  CREATE UNIQUE INDEX main.i1 ON t1(a);
+  CREATE UNIQUE INDEX aux.i2 ON t2(d);
+  CREATE TABLE main.c1 (a, b, c REFERENCES t1(a));
+  CREATE TABLE aux.c2 (d, e, r REFERENCES t2(d));
+}
+ifcapable vtab {
+  do_execsql_test 4.5.1 { SELECT * FROM pragma_foreign_key_list('c1') } {
+    0 0 t1 c a {NO ACTION} {NO ACTION} NONE
+  }
+  do_execsql_test 4.5.2 { SELECT * FROM pragma_foreign_key_list('c2') } {
+    0 0 t2 r d {NO ACTION} {NO ACTION} NONE
+  }
+}
+do_test 4.5.3 { 
+  execsql { DROP TABLE c1 } db3
+  execsql { DROP TABLE c2 } db2
+} {}
+if {[permutation]=="prepare"} { 
+  catchsql { SELECT * FROM sqlite_master, aux.sqlite_master }
+}
+ifcapable vtab {
+  do_execsql_test 4.5.4 { SELECT * FROM pragma_foreign_key_list('c1') }
+  do_execsql_test 4.5.5 { SELECT * FROM pragma_foreign_key_list('c2') } 
+}
+execsql {SELECT * FROM main.sqlite_master, aux.sqlite_master}
+
+do_execsql_test 4.6.0 {
+  CREATE TABLE main.c1 (a, b, c REFERENCES t1(a));
+  CREATE TABLE aux.c2 (d, e, r REFERENCES t2(d));
+  INSERT INTO main.c1 VALUES(1, 2, 3);
+  INSERT INTO aux.c2 VALUES(4, 5, 6);
+}
+do_execsql_test 4.6.1 { pragma foreign_key_check('c1') } {
+  c1 1 t1 0
+}
+do_execsql_test 4.6.2 { pragma foreign_key_check('c2') } {
+  c2 1 t2 0
+}
+do_test 4.6.3 { 
+  execsql { DROP TABLE c2 } db2
+} {}
+do_execsql_test 4.6.4 { pragma foreign_key_check('c1') } {c1 1 t1 0}
+do_catchsql_test 4.6.5 { 
+  pragma foreign_key_check('c2') 
+} {1 {no such table: c2}}
+
+do_execsql_test 5.0 {
+  CREATE TABLE t4(a DEFAULT 'abc' /* comment */, b DEFAULT -1 -- comment
+     , c DEFAULT +4.0 /* another comment */
+  );
+  PRAGMA table_info = t4;
+} {
+  0 a {} 0 'abc' 0 1 b {} 0 -1 0 2 c {} 0 +4.0 0
+}
+
+# 2024-03-24 https://sqlite.org/forum/forumpost/85b6a8b6705fb77a
+#
+catch {db2 close}
+catch {db3 close}
+ifcapable vtab {
+  reset_db
+  do_execsql_test 6.0 {
+    DROP TABLE IF EXISTS t1;
+    DROP TABLE IF EXISTS t2;
+    CREATE TABLE t1(a INT PRIMARY KEY, b INT);
+    CREATE TABLE t2(c INT PRIMARY KEY, d INT REFERENCES t1);
+    SELECT t.name, f."table", f."from", i.name, i.pk
+      FROM pragma_table_list() AS t
+           JOIN pragma_foreign_key_list(t.name, t.schema) AS f
+           JOIN pragma_table_info(f."table", t.schema) AS i
+     WHERE i.pk;
+  } {t2 t1 d a 1}
+
+  # With a corrupt VIEW in the schema, the PRAGMA table_list command
+  # will generate internal errors.  Confirm that these internal errors
+  # do not appears on the log.  https://sqlite.org/src/forumpost/00ee467e
+  test_sqlite3_log [list lappend ::log]
+  set ::log {}
+  do_execsql_test 6.1 {
+    CREATE VIEW v1 AS SELECT abs(a) FROM t1;
+    PRAGMA writable_schema=ON;
+    UPDATE sqlite_schema
+       SET sql=replace(sql,'abs(a)','nosuchfunc(a)')
+     WHERE name='v1';
+    PRAGMA writable_schema=RESET;
+  } {}
+  do_execsql_test 6.2 {
+    PRAGMA table_list;
+  } {main v1 view 0 0 0 main t2 table 2 0 0 main t1 table 2 0 0 main sqlite_schema table 5 0 0 temp sqlite_temp_schema table 5 0 0}
+  do_test 6.3 {
+    set ::log
+  } {}
+  test_sqlite3_log {}
+}
+
+# 2024-05-08 https://sqlite.org/forum/forumpost/cf29a33e94
+#
+ifcapable vtab {
+  do_execsql_test 7.0 {
+    CREATE TABLE t3 ("a" TEXT, "b" TEXT);
+    CREATE TABLE t4 ("a" TEXT, "b" TEXT, "c" TEXT); 
+  }
+  
+  do_execsql_test 7.1 {
+    CREATE TABLE pragma_t3 AS SELECT * FROM pragma_table_info('t3');
+    CREATE TABLE pragma_t4 AS SELECT * FROM pragma_table_info('t4');
+  }
+  
+  do_execsql_test 7.2 {
+    SELECT pragma_t4.name, pragma_t3.name 
+      FROM pragma_t4 RIGHT JOIN pragma_t3 ON (pragma_t4.name=pragma_t3.name);
+  } {a a b b}
+  
+  do_execsql_test 7.3 {
+    SELECT t4.name, t3.name 
+    FROM pragma_table_info('t4') t4 
+    RIGHT JOIN pragma_table_info('t3') t3 ON (t4.name=t3.name);
+  } {a a b b}
+}
+
+
+
+
+finish_test
diff --git a/test/pragma5.test b/test/pragma5.test
new file mode 100644
index 0000000000000000000000000000000000000000..6d9b5bbcdcd71dba828c988c4af38699d1731ce6
--- /dev/null
+++ b/test/pragma5.test
@@ -0,0 +1,70 @@
+# 2017 August 25
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests for the PRAGMA command. Specifically,
+# those pragmas that are not disabled at build time by setting:
+#
+#   -DSQLITE_OMIT_INTROSPECTION_PRAGMAS
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix pragma5
+
+if { [catch {db one "SELECT count(*) FROM pragma_function_list"}] } {
+  finish_test
+  return
+}
+
+db function external external
+
+do_execsql_test 1.0 {
+  PRAGMA table_info(pragma_function_list)
+} {
+  0 name {} 0 {} 0 
+  1 builtin {} 0 {} 0
+  2 type {} 0 {} 0
+  3 enc {} 0 {} 0
+  4 narg {} 0 {} 0
+  5 flags {} 0 {} 0
+}
+do_execsql_test 1.1 {
+  SELECT DISTINCT name, builtin
+    FROM pragma_function_list WHERE name='upper' AND builtin
+} {upper 1}
+do_execsql_test 1.2 {
+  SELECT DISTINCT name, builtin
+    FROM pragma_function_list WHERE name LIKE 'exter%';
+} {external 0}
+
+ifcapable fts5 {
+  do_execsql_test 2.0 {
+    PRAGMA table_info(pragma_module_list)
+  } {
+    0 name {} 0 {} 0 
+  }
+  do_execsql_test 2.1 {
+    SELECT * FROM pragma_module_list WHERE name='fts5'
+  } {fts5}
+}
+
+do_execsql_test 3.0 {
+  PRAGMA table_info(pragma_pragma_list)
+} {
+  0 name {} 0 {} 0 
+}
+do_execsql_test 3.1 {
+  SELECT * FROM pragma_pragma_list WHERE name='pragma_list'
+} {pragma_list}
+
+
+finish_test
diff --git a/test/pragma6.test b/test/pragma6.test
new file mode 100644
index 0000000000000000000000000000000000000000..fc5566af108c51dfc5758ab6733ce790abeebe84
--- /dev/null
+++ b/test/pragma6.test
@@ -0,0 +1,74 @@
+# 2024 February 27
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements tests for PRAGMAs quick_check and integrity_check.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix pragma6
+
+database_may_be_corrupt
+
+#-------------------------------------------------------------------------
+#
+do_test 1.0 {
+  sqlite3 db {}
+  db deserialize [decode_hexdb {
+    .open --hexdb
+    | size 12288 pagesize 4096 filename crash-540f4c1eb1e7ac.db
+    | page 1 offset 0
+    |      0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00   SQLite format 3.
+    |     16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 03   .....@  ........
+    |     32: 00 bb 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+    |     96: 00 00 00 00 0d 00 00 00 02 0f 7f 00 0f c3 0f 7f   ................
+    |   3952: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 42   ...............B
+    |   3968: 02 06 17 11 11 01 71 74 61 62 6c 65 74 32 74 32   ......qtablet2t2
+    |   3984: 03 43 52 45 41 54 45 20 54 41 42 4c 45 20 74 32   .CREATE TABLE t2
+    |   4000: 28 61 20 49 4e 54 2c 20 62 20 41 53 20 28 61 2a   (a INT, b AS (a*
+    |   4016: 32 29 20 53 54 4f 52 45 44 20 4e 4f 54 20 4e 55   2) STORED NOT NU
+    |   4032: 4c 4c 29 3b 01 06 17 11 11 01 63 74 61 62 6c 65   LL);......ctable
+    |   4048: 74 31 74 31 02 43 52 45 41 54 45 20 54 41 42 4c   t1t1.CREATE TABL
+    |   4064: 45 20 74 31 28 61 20 49 4e 54 2c 20 62 20 41 53   E t1(a INT, b AS
+    |   4080: 20 28 61 2a 32 29 20 4e 4f 54 20 4e 55 4c 4c 29    (a*2) NOT NULL)
+    | page 2 offset 4096
+    |      0: 0d 00 00 00 05 0f e7 00 00 00 00 00 00 00 00 00   ................
+    |   4064: 00 00 00 00 00 00 00 00 03 05 02 01 05 03 04 02   ................
+    |   4080: 01 04 03 03 02 01 03 03 02 02 01 02 02 01 02 09   ................
+    | page 3 offset 8192
+    |      0: 0d 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+    |   4048: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 05 05   ................
+    |   4064: 03 01 01 05 0a 05 04 03 01 01 04 08 05 03 03 01   ................
+    |   4080: 01 03 06 05 02 03 00 00 00 00 00 00 00 00 00 00   ................
+    | end crash-540f4c1eb1e7ac.db
+  }]
+} {}
+
+do_test 1.1 {
+  execsql {
+    CREATE TEMP TABLE t2(
+        a t1 PRIMARY KEY default 27,
+        b default(current_timestamp),
+        d TEXT UNIQUE DEFAULT 'ch`arlie',
+        c TEXT UNIQUE DEFAULT 084,
+        UNIQUE(c,b,b,a,b)
+    ) WITHOUT ROWID;
+  }
+  catchsql { INSERT INTO t1(a) VALUES(zeroblob(40000)) }
+  set {} {}
+} {}
+
+do_test 1.2 {
+  execsql { PRAGMA integrity_check; }
+  execsql { PRAGMA quick_check; }
+  set {} {}
+} {}
+
+finish_test
diff --git a/test/pragmafault.test b/test/pragmafault.test
new file mode 100644
index 0000000000000000000000000000000000000000..34718aeca11bef5eeb080b6a3406b52256235604
--- /dev/null
+++ b/test/pragmafault.test
@@ -0,0 +1,39 @@
+# 2010 June 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+source $testdir/malloc_common.tcl
+set testprefix pragmafault
+
+db close
+sqlite3 db test.db
+sqlite3_db_config_lookaside db 0 0 0
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b, CHECK(a!=b));
+  INSERT INTO t1 VALUES(1, 2);
+  INSERT INTO t1 VALUES(3, 4);
+}
+faultsim_save_and_close
+
+do_faultsim_test 1 -prep {
+  faultsim_restore_and_reopen
+} -body {
+  catchsql { PRAGMA integrity_check }
+  set {} 0
+} -test {
+  faultsim_test_result {0 0} 
+}
+
+
+finish_test
diff --git a/test/prefixes.test b/test/prefixes.test
new file mode 100644
index 0000000000000000000000000000000000000000..2080905805c8b118ec768745a1001d9d9701033f
--- /dev/null
+++ b/test/prefixes.test
@@ -0,0 +1,88 @@
+# 2018-01-15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is prefixes.c extension
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix unionvtab
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+load_static_extension db prefixes
+
+foreach {tn zLeft zRight expected} {
+  1 abcdxxx abcyy    3
+  2 abcdxxx bcyyy    0
+  3 abcdxxx ab       2
+  4 ab      abcd     2
+
+  5 "xyz\u1234xz" "xyz\u1234xy" 5
+  6 "xyz\u1234"   "xyz\u1234xy" 4
+  7 "xyz\u1234"   "xyz\u1234"   4
+  8 "xyz\u1234xy" "xyz\u1234"   4
+  9 "xyz\u1234xy" "xyz\u1233"   3
+ 10 "xyz\u1234xy" "xyz\u1235"   3
+} {
+  do_execsql_test 1.$tn { SELECT prefix_length($zLeft, $zRight) } $expected
+}
+
+
+do_execsql_test 2.0 {
+  CREATE TABLE t1(k TEXT UNIQUE, v INTEGER);
+  INSERT INTO t1 VALUES
+    ('aback', 1),
+    ('abaft', 2),
+    ('abandon', 3),
+    ('abandoned', 4),
+    ('abandoning', 5),
+    ('abandonment', 6),
+    ('abandons', 7),
+    ('abase', 8),
+    ('abased', 9),
+    ('abasement', 10),
+    ('abasements', 11),
+    ('abases', 12),
+    ('abash', 13),
+    ('abashed', 14),
+    ('abashes', 15),
+    ('abashing', 16),
+    ('abasing', 17),
+    ('abate', 18),
+    ('abated', 19),
+    ('abatement', 20),
+    ('abatements', 21);
+}
+
+foreach {tn INPUT expected} {
+  1 abatementt   abatement
+  2 abashet      abash
+  3 abandonio    abandon
+  4 abasemenu    abase
+} {
+  do_execsql_test 2.$tn {
+    WITH finder(str) AS (
+      SELECT (SELECT max(k) FROM t1 WHERE k<=$INPUT)
+        UNION ALL
+        SELECT (
+          SELECT max(k) FROM t1 
+          WHERE k<=substr($INPUT, 1, prefix_length(finder.str, $INPUT))
+        ) FROM finder WHERE length(finder.str)>0
+      )
+    SELECT str FROM finder WHERE length(str)==prefix_length(str, $INPUT) LIMIT 1
+  } $expected
+}
+
+finish_test
diff --git a/test/printf.test b/test/printf.test
new file mode 100644
index 0000000000000000000000000000000000000000..cc439e617210ef4f64cb210e016fc609ab5eb1fd
--- /dev/null
+++ b/test/printf.test
@@ -0,0 +1,3853 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the sqlite_*_printf() interface.
+#
+# $Id: printf.test,v 1.31 2009/02/01 00:21:10 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test printf-1.1.1 {
+  sqlite3_mprintf_int {abc: %d %x %o :xyz}\
+       1 1 1
+} {abc: 1 1 1 :xyz}
+do_test printf-1.1.2 {
+  sqlite3_mprintf_int {abc: (%6d) (%6x) (%6o) :xyz}\
+       1 1 1
+} {abc: (     1) (     1) (     1) :xyz}
+do_test printf-1.1.3 {
+  sqlite3_mprintf_int {abc: (%-6d) (%-6x) (%-6o) :xyz}\
+       1 1 1
+} {abc: (1     ) (1     ) (1     ) :xyz}
+do_test printf-1.1.4 {
+  sqlite3_mprintf_int {abc: (%+6d) (%+6x) (%+6o) :xyz}\
+       1 1 1
+} {abc: (    +1) (     1) (     1) :xyz}
+do_test printf-1.1.5 {
+  sqlite3_mprintf_int {abc: (%06d) (%06x) (%06o) :xyz}\
+       1 1 1
+} {abc: (000001) (000001) (000001) :xyz}
+do_test printf-1.1.6 {
+  sqlite3_mprintf_int {abc: (% 6d) (% 6x) (% 6o) :xyz}\
+       1 1 1
+} {abc: (     1) (     1) (     1) :xyz}
+do_test printf-1.1.7 {
+  sqlite3_mprintf_int {abc: (%#6d) (%#6x) (%#6o) :xyz}\
+       1 1 1
+} {abc: (     1) (   0x1) (    01) :xyz}
+do_test printf-1.2.1 {
+  sqlite3_mprintf_int {abc: %d %x %o :xyz}\
+       2 2 2
+} {abc: 2 2 2 :xyz}
+do_test printf-1.2.2 {
+  sqlite3_mprintf_int {abc: (%6d) (%6x) (%6o) :xyz}\
+       2 2 2
+} {abc: (     2) (     2) (     2) :xyz}
+do_test printf-1.2.3 {
+  sqlite3_mprintf_int {abc: (%-6d) (%-6x) (%-6o) :xyz}\
+       2 2 2
+} {abc: (2     ) (2     ) (2     ) :xyz}
+do_test printf-1.2.4 {
+  sqlite3_mprintf_int {abc: (%+6d) (%+6x) (%+6o) :xyz}\
+       2 2 2
+} {abc: (    +2) (     2) (     2) :xyz}
+do_test printf-1.2.5 {
+  sqlite3_mprintf_int {abc: (%06d) (%06x) (%06o) :xyz}\
+       2 2 2
+} {abc: (000002) (000002) (000002) :xyz}
+do_test printf-1.2.6 {
+  sqlite3_mprintf_int {abc: (% 6d) (% 6x) (% 6o) :xyz}\
+       2 2 2
+} {abc: (     2) (     2) (     2) :xyz}
+do_test printf-1.2.7 {
+  sqlite3_mprintf_int {abc: (%#6d) (%#6x) (%#6o) :xyz}\
+       2 2 2
+} {abc: (     2) (   0x2) (    02) :xyz}
+do_test printf-1.3.1 {
+  sqlite3_mprintf_int {abc: %d %x %o :xyz}\
+       5 5 5
+} {abc: 5 5 5 :xyz}
+do_test printf-1.3.2 {
+  sqlite3_mprintf_int {abc: (%6d) (%6x) (%6o) :xyz}\
+       5 5 5
+} {abc: (     5) (     5) (     5) :xyz}
+do_test printf-1.3.3 {
+  sqlite3_mprintf_int {abc: (%-6d) (%-6x) (%-6o) :xyz}\
+       5 5 5
+} {abc: (5     ) (5     ) (5     ) :xyz}
+do_test printf-1.3.4 {
+  sqlite3_mprintf_int {abc: (%+6d) (%+6x) (%+6o) :xyz}\
+       5 5 5
+} {abc: (    +5) (     5) (     5) :xyz}
+do_test printf-1.3.5 {
+  sqlite3_mprintf_int {abc: (%06d) (%06x) (%06o) :xyz}\
+       5 5 5
+} {abc: (000005) (000005) (000005) :xyz}
+do_test printf-1.3.6 {
+  sqlite3_mprintf_int {abc: (% 6d) (% 6x) (% 6o) :xyz}\
+       5 5 5
+} {abc: (     5) (     5) (     5) :xyz}
+do_test printf-1.3.7 {
+  sqlite3_mprintf_int {abc: (%#6d) (%#6x) (%#6o) :xyz}\
+       5 5 5
+} {abc: (     5) (   0x5) (    05) :xyz}
+do_test printf-1.4.1 {
+  sqlite3_mprintf_int {abc: %d %x %o :xyz}\
+       10 10 10
+} {abc: 10 a 12 :xyz}
+do_test printf-1.4.2 {
+  sqlite3_mprintf_int {abc: (%6d) (%6x) (%6o) :xyz}\
+       10 10 10
+} {abc: (    10) (     a) (    12) :xyz}
+do_test printf-1.4.3 {
+  sqlite3_mprintf_int {abc: (%-6d) (%-6x) (%-6o) :xyz}\
+       10 10 10
+} {abc: (10    ) (a     ) (12    ) :xyz}
+do_test printf-1.4.4 {
+  sqlite3_mprintf_int {abc: (%+6d) (%+6x) (%+6o) :xyz}\
+       10 10 10
+} {abc: (   +10) (     a) (    12) :xyz}
+do_test printf-1.4.5 {
+  sqlite3_mprintf_int {abc: (%06d) (%06x) (%06o) :xyz}\
+       10 10 10
+} {abc: (000010) (00000a) (000012) :xyz}
+do_test printf-1.4.6 {
+  sqlite3_mprintf_int {abc: (% 6d) (% 6x) (% 6o) :xyz}\
+       10 10 10
+} {abc: (    10) (     a) (    12) :xyz}
+do_test printf-1.4.7 {
+  sqlite3_mprintf_int {abc: (%#6d) (%#6x) (%#6o) :xyz}\
+       10 10 10
+} {abc: (    10) (   0xa) (   012) :xyz}
+do_test printf-1.5.1 {
+  sqlite3_mprintf_int {abc: %d %x %o :xyz}\
+       99 99 99
+} {abc: 99 63 143 :xyz}
+do_test printf-1.5.2 {
+  sqlite3_mprintf_int {abc: (%6d) (%6x) (%6o) :xyz}\
+       99 99 99
+} {abc: (    99) (    63) (   143) :xyz}
+do_test printf-1.5.3 {
+  sqlite3_mprintf_int {abc: (%-6d) (%-6x) (%-6o) :xyz}\
+       99 99 99
+} {abc: (99    ) (63    ) (143   ) :xyz}
+do_test printf-1.5.4 {
+  sqlite3_mprintf_int {abc: (%+6d) (%+6x) (%+6o) :xyz}\
+       99 99 99
+} {abc: (   +99) (    63) (   143) :xyz}
+do_test printf-1.5.5 {
+  sqlite3_mprintf_int {abc: (%06d) (%06x) (%06o) :xyz}\
+       99 99 99
+} {abc: (000099) (000063) (000143) :xyz}
+do_test printf-1.5.6 {
+  sqlite3_mprintf_int {abc: (% 6d) (% 6x) (% 6o) :xyz}\
+       99 99 99
+} {abc: (    99) (    63) (   143) :xyz}
+do_test printf-1.5.7 {
+  sqlite3_mprintf_int {abc: (%#6d) (%#6x) (%#6o) :xyz}\
+       99 99 99
+} {abc: (    99) (  0x63) (  0143) :xyz}
+do_test printf-1.6.1 {
+  sqlite3_mprintf_int {abc: %d %x %o :xyz}\
+       100 100 100
+} {abc: 100 64 144 :xyz}
+do_test printf-1.6.2 {
+  sqlite3_mprintf_int {abc: (%6d) (%6x) (%6o) :xyz}\
+       100 100 100
+} {abc: (   100) (    64) (   144) :xyz}
+do_test printf-1.6.3 {
+  sqlite3_mprintf_int {abc: (%-6d) (%-6x) (%-6o) :xyz}\
+       100 100 100
+} {abc: (100   ) (64    ) (144   ) :xyz}
+do_test printf-1.6.4 {
+  sqlite3_mprintf_int {abc: (%+6d) (%+6x) (%+6o) :xyz}\
+       100 100 100
+} {abc: (  +100) (    64) (   144) :xyz}
+do_test printf-1.6.5 {
+  sqlite3_mprintf_int {abc: (%06d) (%06x) (%06o) :xyz}\
+       100 100 100
+} {abc: (000100) (000064) (000144) :xyz}
+do_test printf-1.6.6 {
+  sqlite3_mprintf_int {abc: (% 6d) (% 6x) (% 6o) :xyz}\
+       100 100 100
+} {abc: (   100) (    64) (   144) :xyz}
+do_test printf-1.6.7 {
+  sqlite3_mprintf_int {abc: (%#6d) (%#6x) (%#6o) :xyz}\
+       100 100 100
+} {abc: (   100) (  0x64) (  0144) :xyz}
+do_test printf-1.7.1 {
+  sqlite3_mprintf_int {abc: %d %x %o :xyz}\
+       1000000 1000000 1000000
+} {abc: 1000000 f4240 3641100 :xyz}
+do_test printf-1.7.2 {
+  sqlite3_mprintf_int {abc: (%6d) (%6x) (%6o) :xyz}\
+       1000000 1000000 1000000
+} {abc: (1000000) ( f4240) (3641100) :xyz}
+do_test printf-1.7.3 {
+  sqlite3_mprintf_int {abc: (%-6d) (%-6x) (%-6o) :xyz}\
+       1000000 1000000 1000000
+} {abc: (1000000) (f4240 ) (3641100) :xyz}
+do_test printf-1.7.4 {
+  sqlite3_mprintf_int {abc: (%+6d) (%+6x) (%+6o) :xyz}\
+       1000000 1000000 1000000
+} {abc: (+1000000) ( f4240) (3641100) :xyz}
+do_test printf-1.7.5 {
+  sqlite3_mprintf_int {abc: (%06d) (%06x) (%06o) :xyz}\
+       1000000 1000000 1000000
+} {abc: (1000000) (0f4240) (3641100) :xyz}
+do_test printf-1.7.6 {
+  sqlite3_mprintf_int {abc: (% 6d) (% 6x) (% 6o) :xyz}\
+       1000000 1000000 1000000
+} {abc: ( 1000000) ( f4240) (3641100) :xyz}
+do_test printf-1.7.7 {
+  sqlite3_mprintf_int {abc: (%#6d) (%#6x) (%#6o) :xyz}\
+       1000000 1000000 1000000
+} {abc: (1000000) (0xf4240) (03641100) :xyz}
+do_test printf-1.8.1 {
+  sqlite3_mprintf_int {abc: %d %x %o :xyz}\
+       999999999 999999999 999999999
+} {abc: 999999999 3b9ac9ff 7346544777 :xyz}
+do_test printf-1.8.2 {
+  sqlite3_mprintf_int {abc: (%6d) (%6x) (%6o) :xyz}\
+       999999999 999999999 999999999
+} {abc: (999999999) (3b9ac9ff) (7346544777) :xyz}
+do_test printf-1.8.3 {
+  sqlite3_mprintf_int {abc: (%-6d) (%-6x) (%-6o) :xyz}\
+       999999999 999999999 999999999
+} {abc: (999999999) (3b9ac9ff) (7346544777) :xyz}
+do_test printf-1.8.4 {
+  sqlite3_mprintf_int {abc: (%+6d) (%+6x) (%+6o) :xyz}\
+       999999999 999999999 999999999
+} {abc: (+999999999) (3b9ac9ff) (7346544777) :xyz}
+do_test printf-1.8.5 {
+  sqlite3_mprintf_int {abc: (%06d) (%06x) (%06o) :xyz}\
+       999999999 999999999 999999999
+} {abc: (999999999) (3b9ac9ff) (7346544777) :xyz}
+do_test printf-1.8.6 {
+  sqlite3_mprintf_int {abc: (% 6d) (% 6x) (% 6o) :xyz}\
+       999999999 999999999 999999999
+} {abc: ( 999999999) (3b9ac9ff) (7346544777) :xyz}
+do_test printf-1.8.7 {
+  sqlite3_mprintf_int {abc: (%#6d) (%#6x) (%#6o) :xyz}\
+       999999999 999999999 999999999
+} {abc: (999999999) (0x3b9ac9ff) (07346544777) :xyz}
+do_test printf-1.9.1 {
+  sqlite3_mprintf_int {abc: %d %x %o :xyz}\
+       0 0 0
+} {abc: 0 0 0 :xyz}
+do_test printf-1.9.2 {
+  sqlite3_mprintf_int {abc: (%6d) (%6x) (%6o) :xyz}\
+       0 0 0
+} {abc: (     0) (     0) (     0) :xyz}
+do_test printf-1.9.3 {
+  sqlite3_mprintf_int {abc: (%-6d) (%-6x) (%-6o) :xyz}\
+       0 0 0
+} {abc: (0     ) (0     ) (0     ) :xyz}
+do_test printf-1.9.4 {
+  sqlite3_mprintf_int {abc: (%+6d) (%+6x) (%+6o) :xyz}\
+       0 0 0
+} {abc: (    +0) (     0) (     0) :xyz}
+do_test printf-1.9.5 {
+  sqlite3_mprintf_int {abc: (%06d) (%06x) (%06o) :xyz}\
+       0 0 0
+} {abc: (000000) (000000) (000000) :xyz}
+do_test printf-1.9.6 {
+  sqlite3_mprintf_int {abc: (% 6d) (% 6x) (% 6o) :xyz}\
+       0 0 0
+} {abc: (     0) (     0) (     0) :xyz}
+do_test printf-1.9.7 {
+  sqlite3_mprintf_int {abc: (%#6d) (%#6x) (%#6o) :xyz}\
+       0 0 0
+} {abc: (     0) (     0) (     0) :xyz}
+# 0xffffffff == -1
+do_test printf-1.10.1 {
+  sqlite3_mprintf_int {abc: %d %x %o :xyz}\
+       0xffffffff 0xffffffff 0xffffffff
+} {abc: -1 ffffffff 37777777777 :xyz}
+do_test printf-1.10.2 {
+  sqlite3_mprintf_int {abc: (%6d) (%6x) (%6o) :xyz}\
+       0xffffffff 0xffffffff 0xffffffff
+} {abc: (    -1) (ffffffff) (37777777777) :xyz}
+do_test printf-1.10.3 {
+  sqlite3_mprintf_int {abc: (%-6d) (%-6x) (%-6o) :xyz}\
+       0xffffffff 0xffffffff 0xffffffff
+} {abc: (-1    ) (ffffffff) (37777777777) :xyz}
+do_test printf-1.10.4 {
+  sqlite3_mprintf_int {abc: (%+6d) (%+6x) (%+6o) :xyz}\
+       0xffffffff 0xffffffff 0xffffffff
+} {abc: (    -1) (ffffffff) (37777777777) :xyz}
+do_test printf-1.10.5 {
+  sqlite3_mprintf_int {abc: (%06d) (%06x) (%06o) :xyz}\
+       0xffffffff 0xffffffff 0xffffffff
+} {abc: (-00001) (ffffffff) (37777777777) :xyz}
+do_test printf-1.10.6 {
+  sqlite3_mprintf_int {abc: (% 6d) (% 6x) (% 6o) :xyz}\
+       0xffffffff 0xffffffff 0xffffffff
+} {abc: (    -1) (ffffffff) (37777777777) :xyz}
+do_test printf-1.10.7 {
+  sqlite3_mprintf_int {abc: (%#6d) (%#6x) (%#6o) :xyz}\
+       0xffffffff 0xffffffff 0xffffffff
+} {abc: (    -1) (0xffffffff) (037777777777) :xyz}
+# 0xfffffffe == -2
+do_test printf-1.11.1 {
+  sqlite3_mprintf_int {abc: %d %x %o :xyz}\
+       0xfffffffe 0xfffffffe 0xfffffffe
+} {abc: -2 fffffffe 37777777776 :xyz}
+do_test printf-1.11.2 {
+  sqlite3_mprintf_int {abc: (%6d) (%6x) (%6o) :xyz}\
+       0xfffffffe 0xfffffffe 0xfffffffe
+} {abc: (    -2) (fffffffe) (37777777776) :xyz}
+do_test printf-1.11.3 {
+  sqlite3_mprintf_int {abc: (%-6d) (%-6x) (%-6o) :xyz}\
+       0xfffffffe 0xfffffffe 0xfffffffe
+} {abc: (-2    ) (fffffffe) (37777777776) :xyz}
+do_test printf-1.11.4 {
+  sqlite3_mprintf_int {abc: (%+6d) (%+6x) (%+6o) :xyz}\
+       0xfffffffe 0xfffffffe 0xfffffffe
+} {abc: (    -2) (fffffffe) (37777777776) :xyz}
+do_test printf-1.11.5 {
+  sqlite3_mprintf_int {abc: (%06d) (%06x) (%06o) :xyz}\
+       0xfffffffe 0xfffffffe 0xfffffffe
+} {abc: (-00002) (fffffffe) (37777777776) :xyz}
+do_test printf-1.11.6 {
+  sqlite3_mprintf_int {abc: (% 6d) (% 6x) (% 6o) :xyz}\
+       0xfffffffe 0xfffffffe 0xfffffffe
+} {abc: (    -2) (fffffffe) (37777777776) :xyz}
+do_test printf-1.11.7 {
+  sqlite3_mprintf_int {abc: (%#6d) (%#6x) (%#6o) :xyz}\
+       0xfffffffe 0xfffffffe 0xfffffffe
+} {abc: (    -2) (0xfffffffe) (037777777776) :xyz}
+# 0xfffffffb == -5
+do_test printf-1.12.1 {
+  sqlite3_mprintf_int {abc: %d %x %o :xyz}\
+       0xfffffffb 0xfffffffb 0xfffffffb
+} {abc: -5 fffffffb 37777777773 :xyz}
+do_test printf-1.12.2 {
+  sqlite3_mprintf_int {abc: (%6d) (%6x) (%6o) :xyz}\
+       0xfffffffb 0xfffffffb 0xfffffffb
+} {abc: (    -5) (fffffffb) (37777777773) :xyz}
+do_test printf-1.12.3 {
+  sqlite3_mprintf_int {abc: (%-6d) (%-6x) (%-6o) :xyz}\
+       0xfffffffb 0xfffffffb 0xfffffffb
+} {abc: (-5    ) (fffffffb) (37777777773) :xyz}
+do_test printf-1.12.4 {
+  sqlite3_mprintf_int {abc: (%+6d) (%+6x) (%+6o) :xyz}\
+       0xfffffffb 0xfffffffb 0xfffffffb
+} {abc: (    -5) (fffffffb) (37777777773) :xyz}
+do_test printf-1.12.5 {
+  sqlite3_mprintf_int {abc: (%06d) (%06x) (%06o) :xyz}\
+       0xfffffffb 0xfffffffb 0xfffffffb
+} {abc: (-00005) (fffffffb) (37777777773) :xyz}
+do_test printf-1.12.6 {
+  sqlite3_mprintf_int {abc: (% 6d) (% 6x) (% 6o) :xyz}\
+       0xfffffffb 0xfffffffb 0xfffffffb
+} {abc: (    -5) (fffffffb) (37777777773) :xyz}
+do_test printf-1.12.7 {
+  sqlite3_mprintf_int {abc: (%#6d) (%#6x) (%#6o) :xyz}\
+       0xfffffffb 0xfffffffb 0xfffffffb
+} {abc: (    -5) (0xfffffffb) (037777777773) :xyz}
+# 0xfffffff6 == -10
+do_test printf-1.13.1 {
+  sqlite3_mprintf_int {abc: %d %x %o :xyz}\
+       0xfffffff6 0xfffffff6 0xfffffff6
+} {abc: -10 fffffff6 37777777766 :xyz}
+do_test printf-1.13.2 {
+  sqlite3_mprintf_int {abc: (%6d) (%6x) (%6o) :xyz}\
+       0xfffffff6 0xfffffff6 0xfffffff6
+} {abc: (   -10) (fffffff6) (37777777766) :xyz}
+do_test printf-1.13.3 {
+  sqlite3_mprintf_int {abc: (%-6d) (%-6x) (%-6o) :xyz}\
+       0xfffffff6 0xfffffff6 0xfffffff6
+} {abc: (-10   ) (fffffff6) (37777777766) :xyz}
+do_test printf-1.13.4 {
+  sqlite3_mprintf_int {abc: (%+6d) (%+6x) (%+6o) :xyz}\
+       0xfffffff6 0xfffffff6 0xfffffff6
+} {abc: (   -10) (fffffff6) (37777777766) :xyz}
+do_test printf-1.13.5 {
+  sqlite3_mprintf_int {abc: (%06d) (%06x) (%06o) :xyz}\
+       0xfffffff6 0xfffffff6 0xfffffff6
+} {abc: (-00010) (fffffff6) (37777777766) :xyz}
+do_test printf-1.13.6 {
+  sqlite3_mprintf_int {abc: (% 6d) (% 6x) (% 6o) :xyz}\
+       0xfffffff6 0xfffffff6 0xfffffff6
+} {abc: (   -10) (fffffff6) (37777777766) :xyz}
+do_test printf-1.13.7 {
+  sqlite3_mprintf_int {abc: (%#6d) (%#6x) (%#6o) :xyz}\
+       0xfffffff6 0xfffffff6 0xfffffff6
+} {abc: (   -10) (0xfffffff6) (037777777766) :xyz}
+# 0xffffff9d == -99
+do_test printf-1.14.1 {
+  sqlite3_mprintf_int {abc: %d %x %o :xyz}\
+       0xffffff9d 0xffffff9d 0xffffff9d
+} {abc: -99 ffffff9d 37777777635 :xyz}
+do_test printf-1.14.2 {
+  sqlite3_mprintf_int {abc: (%6d) (%6x) (%6o) :xyz}\
+       0xffffff9d 0xffffff9d 0xffffff9d
+} {abc: (   -99) (ffffff9d) (37777777635) :xyz}
+do_test printf-1.14.3 {
+  sqlite3_mprintf_int {abc: (%-6d) (%-6x) (%-6o) :xyz}\
+       0xffffff9d 0xffffff9d 0xffffff9d
+} {abc: (-99   ) (ffffff9d) (37777777635) :xyz}
+do_test printf-1.14.4 {
+  sqlite3_mprintf_int {abc: (%+6d) (%+6x) (%+6o) :xyz}\
+       0xffffff9d 0xffffff9d 0xffffff9d
+} {abc: (   -99) (ffffff9d) (37777777635) :xyz}
+do_test printf-1.14.5 {
+  sqlite3_mprintf_int {abc: (%06d) (%06x) (%06o) :xyz}\
+       0xffffff9d 0xffffff9d 0xffffff9d
+} {abc: (-00099) (ffffff9d) (37777777635) :xyz}
+do_test printf-1.14.6 {
+  sqlite3_mprintf_int {abc: (% 6d) (% 6x) (% 6o) :xyz}\
+       0xffffff9d 0xffffff9d 0xffffff9d
+} {abc: (   -99) (ffffff9d) (37777777635) :xyz}
+do_test printf-1.14.7 {
+  sqlite3_mprintf_int {abc: (%#6d) (%#6x) (%#6o) :xyz}\
+       0xffffff9d 0xffffff9d 0xffffff9d
+} {abc: (   -99) (0xffffff9d) (037777777635) :xyz}
+# 0xffffff9c == -100
+do_test printf-1.15.1 {
+  sqlite3_mprintf_int {abc: %d %x %o :xyz}\
+       0xffffff9c 0xffffff9c 0xffffff9c
+} {abc: -100 ffffff9c 37777777634 :xyz}
+do_test printf-1.15.2 {
+  sqlite3_mprintf_int {abc: (%6d) (%6x) (%6o) :xyz}\
+       0xffffff9c 0xffffff9c 0xffffff9c
+} {abc: (  -100) (ffffff9c) (37777777634) :xyz}
+do_test printf-1.15.3 {
+  sqlite3_mprintf_int {abc: (%-6d) (%-6x) (%-6o) :xyz}\
+       0xffffff9c 0xffffff9c 0xffffff9c
+} {abc: (-100  ) (ffffff9c) (37777777634) :xyz}
+do_test printf-1.15.4 {
+  sqlite3_mprintf_int {abc: (%+6d) (%+6x) (%+6o) :xyz}\
+       0xffffff9c 0xffffff9c 0xffffff9c
+} {abc: (  -100) (ffffff9c) (37777777634) :xyz}
+do_test printf-1.15.5 {
+  sqlite3_mprintf_int {abc: (%06d) (%06x) (%06o) :xyz}\
+       0xffffff9c 0xffffff9c 0xffffff9c
+} {abc: (-00100) (ffffff9c) (37777777634) :xyz}
+do_test printf-1.15.6 {
+  sqlite3_mprintf_int {abc: (% 6d) (% 6x) (% 6o) :xyz}\
+       0xffffff9c 0xffffff9c 0xffffff9c
+} {abc: (  -100) (ffffff9c) (37777777634) :xyz}
+do_test printf-1.15.7 {
+  sqlite3_mprintf_int {abc: (%#6d) (%#6x) (%#6o) :xyz}\
+       0xffffff9c 0xffffff9c 0xffffff9c
+} {abc: (  -100) (0xffffff9c) (037777777634) :xyz}
+# 0xff676981 == -9999999
+do_test printf-1.16.1 {
+  sqlite3_mprintf_int {abc: %d %x %o :xyz}\
+       0xff676981 0xff676981 0xff676981
+} {abc: -9999999 ff676981 37731664601 :xyz}
+do_test printf-1.16.2 {
+  sqlite3_mprintf_int {abc: (%6d) (%6x) (%6o) :xyz}\
+       0xff676981 0xff676981 0xff676981
+} {abc: (-9999999) (ff676981) (37731664601) :xyz}
+do_test printf-1.16.3 {
+  sqlite3_mprintf_int {abc: (%-6d) (%-6x) (%-6o) :xyz}\
+       0xff676981 0xff676981 0xff676981
+} {abc: (-9999999) (ff676981) (37731664601) :xyz}
+do_test printf-1.16.4 {
+  sqlite3_mprintf_int {abc: (%+6d) (%+6x) (%+6o) :xyz}\
+       0xff676981 0xff676981 0xff676981
+} {abc: (-9999999) (ff676981) (37731664601) :xyz}
+do_test printf-1.16.5 {
+  sqlite3_mprintf_int {abc: (%06d) (%06x) (%06o) :xyz}\
+       0xff676981 0xff676981 0xff676981
+} {abc: (-9999999) (ff676981) (37731664601) :xyz}
+do_test printf-1.16.6 {
+  sqlite3_mprintf_int {abc: (% 6d) (% 6x) (% 6o) :xyz}\
+       0xff676981 0xff676981 0xff676981
+} {abc: (-9999999) (ff676981) (37731664601) :xyz}
+do_test printf-1.16.7 {
+  sqlite3_mprintf_int {abc: (%#6d) (%#6x) (%#6o) :xyz}\
+       0xff676981 0xff676981 0xff676981
+} {abc: (-9999999) (0xff676981) (037731664601) :xyz}
+do_test printf-1.17.1 {
+  sqlite3_mprintf_int {abd: %2147483647d %2147483647x %2147483647o} 1 1 1
+} {}
+do_test printf-1.17.2 {
+  sqlite3_mprintf_int {abd: %*d %x} 2147483647 1 1
+} {}
+do_test printf-1.17.3 {
+  sqlite3_mprintf_int {abd: %*d %x} -2147483648 1 1
+} {abd: 1 1}
+do_test printf-1.17.4 {
+  sqlite3_mprintf_int {abd: %.2147483648d %x %x} 1 1 1
+} {/.*/}
+do_test printf-2.1.1.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 1 1 0.001
+} {abc: (0.0) :xyz}
+do_test printf-2.1.1.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 1 1 0.001
+} {abc: (1.0e-03) :xyz}
+do_test printf-2.1.1.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 1 1 0.001
+} {abc: (0.001) :xyz}
+do_test printf-2.1.1.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 1 1 0.001
+} {abc: 1 1 (0.001) :xyz}
+do_test printf-2.1.1.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 1 1 0.001
+} {abc: 1 1 (0.00100000) :xyz}
+do_test printf-2.1.1.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 1 1 0.001
+} {abc: 1 1 (000000.001) :xyz}
+do_test printf-2.1.1.7 {
+  sqlite3_mprintf_double {abc: %d %d (%1.1f) :xyz} 1 1 0.001
+} {abc: 1 1 (0.0) :xyz}
+do_test printf-2.1.1.8 {
+  sqlite3_mprintf_double {abc: %d %d (%1.1e) :xyz} 1 1 0.001
+} {abc: 1 1 (1.0e-03) :xyz}
+do_test printf-2.1.1.9 {
+  sqlite3_mprintf_double {abc: %d %d (%1.1g) :xyz} 1 1 0.001
+} {abc: 1 1 (0.001) :xyz}
+do_test printf-2.1.2.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 1 1 1.0e-20
+} {abc: (0.0) :xyz}
+do_test printf-2.1.2.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 1 1 1.0e-20
+} {abc: (1.0e-20) :xyz}
+do_test printf-2.1.2.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 1 1 1.0e-20
+} {abc: (1e-20) :xyz}
+do_test printf-2.1.2.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 1 1 1.0e-20
+} {abc: 1 1 (1e-20) :xyz}
+do_test printf-2.1.2.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 1 1 1.0e-20
+} {abc: 1 1 (1.00000e-20) :xyz}
+do_test printf-2.1.2.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 1 1 1.0e-20
+} {abc: 1 1 (000001e-20) :xyz}
+do_test printf-2.1.2.7 {
+  sqlite3_mprintf_double {abc: %d %d (%1.1f) :xyz} 1 1 1.0e-20
+} {abc: 1 1 (0.0) :xyz}
+do_test printf-2.1.2.8 {
+  sqlite3_mprintf_double {abc: %d %d (%1.1e) :xyz} 1 1 1.0e-20
+} {abc: 1 1 (1.0e-20) :xyz}
+do_test printf-2.1.2.9 {
+  sqlite3_mprintf_double {abc: %d %d (%1.1g) :xyz} 1 1 1.0e-20
+} {abc: 1 1 (1e-20) :xyz}
+if {$SQLITE_MAX_LENGTH<=[expr 1000*1000*1000]} {
+  do_test printf-2.1.2.10 {
+    sqlite3_mprintf_double {abc: %*.*f}  2000000000 1000000000 1.0e-20
+  } {}
+}
+do_test printf-2.1.3.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 1 1 1.0
+} {abc: (1.0) :xyz}
+do_test printf-2.1.3.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 1 1 1.0
+} {abc: (1.0e+00) :xyz}
+do_test printf-2.1.3.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 1 1 1.0
+} {abc: (1) :xyz}
+do_test printf-2.1.3.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 1 1 1.0
+} {abc: 1 1 (1) :xyz}
+do_test printf-2.1.3.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 1 1 1.0
+} {abc: 1 1 (1.00000) :xyz}
+do_test printf-2.1.3.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 1 1 1.0
+} {abc: 1 1 (0000000001) :xyz}
+do_test printf-2.1.3.7 {
+  sqlite3_mprintf_double {abc: %d %d (%1.1f) :xyz} 1 1 1.0
+} {abc: 1 1 (1.0) :xyz}
+do_test printf-2.1.3.8 {
+  sqlite3_mprintf_double {abc: %d %d (%1.1e) :xyz} 1 1 1.0
+} {abc: 1 1 (1.0e+00) :xyz}
+do_test printf-2.1.3.9 {
+  sqlite3_mprintf_double {abc: %d %d (%1.1g) :xyz} 1 1 1.0
+} {abc: 1 1 (1) :xyz}
+do_test printf-2.1.4.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 1 1 0.0
+} {abc: (0.0) :xyz}
+do_test printf-2.1.4.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 1 1 0.0
+} {abc: (0.0e+00) :xyz}
+do_test printf-2.1.4.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 1 1 0.0
+} {abc: (0) :xyz}
+do_test printf-2.1.4.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 1 1 0.0
+} {abc: 1 1 (0) :xyz}
+do_test printf-2.1.4.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 1 1 0.0
+} {abc: 1 1 (0.00000) :xyz}
+do_test printf-2.1.4.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 1 1 0.0
+} {abc: 1 1 (0000000000) :xyz}
+do_test printf-2.1.4.7 {
+  sqlite3_mprintf_double {abc: %d %d (%1.1f) :xyz} 1 1 0.0
+} {abc: 1 1 (0.0) :xyz}
+do_test printf-2.1.4.8 {
+  sqlite3_mprintf_double {abc: %d %d (%1.1e) :xyz} 1 1 0.0
+} {abc: 1 1 (0.0e+00) :xyz}
+do_test printf-2.1.4.9 {
+  sqlite3_mprintf_double {abc: %d %d (%1.1g) :xyz} 1 1 0.0
+} {abc: 1 1 (0) :xyz}
+do_test printf-2.1.5.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 1 1 100.0
+} {abc: (100.0) :xyz}
+do_test printf-2.1.5.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 1 1 100.0
+} {abc: (1.0e+02) :xyz}
+do_test printf-2.1.5.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 1 1 100.0
+} {abc: (1e+02) :xyz}
+do_test printf-2.1.5.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 1 1 100.0
+} {abc: 1 1 (100) :xyz}
+do_test printf-2.1.5.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 1 1 100.0
+} {abc: 1 1 (100.000) :xyz}
+do_test printf-2.1.5.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 1 1 100.0
+} {abc: 1 1 (0000000100) :xyz}
+do_test printf-2.1.5.7 {
+  sqlite3_mprintf_double {abc: %d %d (%1.1f) :xyz} 1 1 100.0
+} {abc: 1 1 (100.0) :xyz}
+do_test printf-2.1.5.8 {
+  sqlite3_mprintf_double {abc: %d %d (%1.1e) :xyz} 1 1 100.0
+} {abc: 1 1 (1.0e+02) :xyz}
+do_test printf-2.1.5.9 {
+  sqlite3_mprintf_double {abc: %d %d (%1.1g) :xyz} 1 1 100.0
+} {abc: 1 1 (1e+02) :xyz}
+do_test printf-2.1.6.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 1 1 9.99999
+} {abc: (10.0) :xyz}
+do_test printf-2.1.6.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 1 1 9.99999
+} {abc: (1.0e+01) :xyz}
+do_test printf-2.1.6.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 1 1 9.99999
+} {abc: (1e+01) :xyz}
+do_test printf-2.1.6.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 1 1 9.99999
+} {abc: 1 1 (9.99999) :xyz}
+do_test printf-2.1.6.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 1 1 9.99999
+} {abc: 1 1 (9.99999) :xyz}
+do_test printf-2.1.6.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 1 1 9.99999
+} {abc: 1 1 (0009.99999) :xyz}
+do_test printf-2.1.6.7 {
+  sqlite3_mprintf_double {abc: %d %d (%1.1f) :xyz} 1 1 9.99999
+} {abc: 1 1 (10.0) :xyz}
+do_test printf-2.1.6.8 {
+  sqlite3_mprintf_double {abc: %d %d (%1.1e) :xyz} 1 1 9.99999
+} {abc: 1 1 (1.0e+01) :xyz}
+do_test printf-2.1.6.9 {
+  sqlite3_mprintf_double {abc: %d %d (%1.1g) :xyz} 1 1 9.99999
+} {abc: 1 1 (1e+01) :xyz}
+do_test printf-2.1.7.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 1 1 -0.00543
+} {abc: (-0.0) :xyz}
+do_test printf-2.1.7.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 1 1 -0.00543
+} {abc: (-5.4e-03) :xyz}
+do_test printf-2.1.7.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 1 1 -0.00543
+} {abc: (-0.005) :xyz}
+do_test printf-2.1.7.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 1 1 -0.00543
+} {abc: 1 1 (-0.00543) :xyz}
+do_test printf-2.1.7.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 1 1 -0.00543
+} {abc: 1 1 (-0.00543000) :xyz}
+do_test printf-2.1.7.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 1 1 -0.00543
+} {abc: 1 1 (-000.00543) :xyz}
+do_test printf-2.1.7.7 {
+  sqlite3_mprintf_double {abc: %d %d (%1.1f) :xyz} 1 1 -0.00543
+} {abc: 1 1 (-0.0) :xyz}
+do_test printf-2.1.7.8 {
+  sqlite3_mprintf_double {abc: %d %d (%1.1e) :xyz} 1 1 -0.00543
+} {abc: 1 1 (-5.4e-03) :xyz}
+do_test printf-2.1.7.9 {
+  sqlite3_mprintf_double {abc: %d %d (%1.1g) :xyz} 1 1 -0.00543
+} {abc: 1 1 (-0.005) :xyz}
+do_test printf-2.1.8.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 1 1 -1.0
+} {abc: (-1.0) :xyz}
+do_test printf-2.1.8.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 1 1 -1.0
+} {abc: (-1.0e+00) :xyz}
+do_test printf-2.1.8.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 1 1 -1.0
+} {abc: (-1) :xyz}
+do_test printf-2.1.8.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 1 1 -1.0
+} {abc: 1 1 (-1) :xyz}
+do_test printf-2.1.8.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 1 1 -1.0
+} {abc: 1 1 (-1.00000) :xyz}
+do_test printf-2.1.8.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 1 1 -1.0
+} {abc: 1 1 (-000000001) :xyz}
+do_test printf-2.1.8.7 {
+  sqlite3_mprintf_double {abc: %d %d (%1.1f) :xyz} 1 1 -1.0
+} {abc: 1 1 (-1.0) :xyz}
+do_test printf-2.1.8.8 {
+  sqlite3_mprintf_double {abc: %d %d (%1.1e) :xyz} 1 1 -1.0
+} {abc: 1 1 (-1.0e+00) :xyz}
+do_test printf-2.1.8.9 {
+  sqlite3_mprintf_double {abc: %d %d (%1.1g) :xyz} 1 1 -1.0
+} {abc: 1 1 (-1) :xyz}
+do_test printf-2.1.9.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 1 1 -99.99999
+} {abc: (-100.0) :xyz}
+do_test printf-2.1.9.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 1 1 -99.99999
+} {abc: (-1.0e+02) :xyz}
+do_test printf-2.1.9.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 1 1 -99.99999
+} {abc: (-1e+02) :xyz}
+do_test printf-2.1.9.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 1 1 -99.99999
+} {abc: 1 1 (-100) :xyz}
+do_test printf-2.1.9.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 1 1 -99.99999
+} {abc: 1 1 (-100.000) :xyz}
+do_test printf-2.1.9.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 1 1 -99.99999
+} {abc: 1 1 (-000000100) :xyz}
+do_test printf-2.1.9.7 {
+  sqlite3_mprintf_double {abc: %d %d (%1.1f) :xyz} 1 1 -99.99999
+} {abc: 1 1 (-100.0) :xyz}
+do_test printf-2.1.9.8 {
+  sqlite3_mprintf_double {abc: %d %d (%1.1e) :xyz} 1 1 -99.99999
+} {abc: 1 1 (-1.0e+02) :xyz}
+do_test printf-2.1.9.9 {
+  sqlite3_mprintf_double {abc: %d %d (%1.1g) :xyz} 1 1 -99.99999
+} {abc: 1 1 (-1e+02) :xyz}
+do_test printf-2.1.10.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 1 1 3.14e+9
+} {abc: (3140000000.0) :xyz}
+do_test printf-2.1.10.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 1 1 3.14e+9
+} {abc: (3.1e+09) :xyz}
+do_test printf-2.1.10.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 1 1 3.14e+9
+} {abc: (3e+09) :xyz}
+do_test printf-2.1.10.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 1 1 3.14e+9
+} {abc: 1 1 (3.14e+09) :xyz}
+do_test printf-2.1.10.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 1 1 3.14e+9
+} {abc: 1 1 (3.14000e+09) :xyz}
+do_test printf-2.1.10.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 1 1 3.14e+9
+} {abc: 1 1 (003.14e+09) :xyz}
+do_test printf-2.1.10.7 {
+  sqlite3_mprintf_double {abc: %d %d (%1.1f) :xyz} 1 1 3.14e+9
+} {abc: 1 1 (3140000000.0) :xyz}
+do_test printf-2.1.10.8 {
+  sqlite3_mprintf_double {abc: %d %d (%1.1e) :xyz} 1 1 3.14e+9
+} {abc: 1 1 (3.1e+09) :xyz}
+do_test printf-2.1.10.9 {
+  sqlite3_mprintf_double {abc: %d %d (%1.1g) :xyz} 1 1 3.14e+9
+} {abc: 1 1 (3e+09) :xyz}
+do_test printf-2.1.11.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 1 1 -4.72732e+88
+} {abc: (-4.7e+88) :xyz}
+do_test printf-2.1.11.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 1 1 -4.72732e+88
+} {abc: (-5e+88) :xyz}
+do_test printf-2.1.11.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 1 1 -4.72732e+88
+} {abc: 1 1 (-4.72732e+88) :xyz}
+do_test printf-2.1.11.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 1 1 -4.72732e+88
+} {abc: 1 1 (-4.72732e+88) :xyz}
+do_test printf-2.1.11.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 1 1 -4.72732e+88
+} {abc: 1 1 (-4.72732e+88) :xyz}
+do_test printf-2.1.11.8 {
+  sqlite3_mprintf_double {abc: %d %d (%1.1e) :xyz} 1 1 -4.72732e+88
+} {abc: 1 1 (-4.7e+88) :xyz}
+do_test printf-2.1.11.9 {
+  sqlite3_mprintf_double {abc: %d %d (%1.1g) :xyz} 1 1 -4.72732e+88
+} {abc: 1 1 (-5e+88) :xyz}
+do_test printf-2.1.12.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 1 1 9.87991e+143
+} {abc: (9.9e+143) :xyz}
+do_test printf-2.1.12.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 1 1 9.87991e+143
+} {abc: (1e+144) :xyz}
+do_test printf-2.1.12.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 1 1 9.87991e+143
+} {abc: 1 1 (9.87991e+143) :xyz}
+do_test printf-2.1.12.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 1 1 9.87991e+143
+} {abc: 1 1 (9.87991e+143) :xyz}
+do_test printf-2.1.12.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 1 1 9.87991e+143
+} {abc: 1 1 (9.87991e+143) :xyz}
+do_test printf-2.1.12.8 {
+  sqlite3_mprintf_double {abc: %d %d (%1.1e) :xyz} 1 1 9.87991e+143
+} {abc: 1 1 (9.9e+143) :xyz}
+do_test printf-2.1.12.9 {
+  sqlite3_mprintf_double {abc: %d %d (%1.1g) :xyz} 1 1 9.87991e+143
+} {abc: 1 1 (1e+144) :xyz}
+do_test printf-2.1.13.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 1 1 -6.287291e-9
+} {abc: (-0.0) :xyz}
+do_test printf-2.1.13.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 1 1 -6.287291e-9
+} {abc: (-6.3e-09) :xyz}
+do_test printf-2.1.13.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 1 1 -6.287291e-9
+} {abc: (-6e-09) :xyz}
+do_test printf-2.1.13.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 1 1 -6.287291e-9
+} {abc: 1 1 (-6.28729e-09) :xyz}
+do_test printf-2.1.13.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 1 1 -6.287291e-9
+} {abc: 1 1 (-6.28729e-09) :xyz}
+do_test printf-2.1.13.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 1 1 -6.287291e-9
+} {abc: 1 1 (-6.28729e-09) :xyz}
+do_test printf-2.1.13.7 {
+  sqlite3_mprintf_double {abc: %d %d (%1.1f) :xyz} 1 1 -6.287291e-9
+} {abc: 1 1 (-0.0) :xyz}
+do_test printf-2.1.13.8 {
+  sqlite3_mprintf_double {abc: %d %d (%1.1e) :xyz} 1 1 -6.287291e-9
+} {abc: 1 1 (-6.3e-09) :xyz}
+do_test printf-2.1.13.9 {
+  sqlite3_mprintf_double {abc: %d %d (%1.1g) :xyz} 1 1 -6.287291e-9
+} {abc: 1 1 (-6e-09) :xyz}
+do_test printf-2.1.14.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 1 1 3.38826392e-110
+} {abc: (0.0) :xyz}
+do_test printf-2.1.14.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 1 1 3.38826392e-110
+} {abc: (3.4e-110) :xyz}
+do_test printf-2.1.14.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 1 1 3.38826392e-110
+} {abc: (3e-110) :xyz}
+do_test printf-2.1.14.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 1 1 3.38826392e-110
+} {abc: 1 1 (3.38826e-110) :xyz}
+do_test printf-2.1.14.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 1 1 3.38826392e-110
+} {abc: 1 1 (3.38826e-110) :xyz}
+do_test printf-2.1.14.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 1 1 3.38826392e-110
+} {abc: 1 1 (3.38826e-110) :xyz}
+do_test printf-2.1.14.7 {
+  sqlite3_mprintf_double {abc: %d %d (%1.1f) :xyz} 1 1 3.38826392e-110
+} {abc: 1 1 (0.0) :xyz}
+do_test printf-2.1.14.8 {
+  sqlite3_mprintf_double {abc: %d %d (%1.1e) :xyz} 1 1 3.38826392e-110
+} {abc: 1 1 (3.4e-110) :xyz}
+do_test printf-2.1.14.9 {
+  sqlite3_mprintf_double {abc: %d %d (%1.1g) :xyz} 1 1 3.38826392e-110
+} {abc: 1 1 (3e-110) :xyz}
+do_test printf-2.2.1.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 5 5 0.001
+} {abc: (0.00100) :xyz}
+do_test printf-2.2.1.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 5 5 0.001
+} {abc: (1.00000e-03) :xyz}
+do_test printf-2.2.1.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 5 5 0.001
+} {abc: (0.001) :xyz}
+do_test printf-2.2.1.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 5 5 0.001
+} {abc: 5 5 (0.001) :xyz}
+do_test printf-2.2.1.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 5 5 0.001
+} {abc: 5 5 (0.00100000) :xyz}
+do_test printf-2.2.1.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 5 5 0.001
+} {abc: 5 5 (000000.001) :xyz}
+do_test printf-2.2.1.7 {
+  sqlite3_mprintf_double {abc: %d %d (%5.5f) :xyz} 5 5 0.001
+} {abc: 5 5 (0.00100) :xyz}
+do_test printf-2.2.1.8 {
+  sqlite3_mprintf_double {abc: %d %d (%5.5e) :xyz} 5 5 0.001
+} {abc: 5 5 (1.00000e-03) :xyz}
+do_test printf-2.2.1.9 {
+  sqlite3_mprintf_double {abc: %d %d (%5.5g) :xyz} 5 5 0.001
+} {abc: 5 5 (0.001) :xyz}
+do_test printf-2.2.2.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 5 5 1.0e-20
+} {abc: (0.00000) :xyz}
+do_test printf-2.2.2.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 5 5 1.0e-20
+} {abc: (1.00000e-20) :xyz}
+do_test printf-2.2.2.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 5 5 1.0e-20
+} {abc: (1e-20) :xyz}
+do_test printf-2.2.2.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 5 5 1.0e-20
+} {abc: 5 5 (1e-20) :xyz}
+do_test printf-2.2.2.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 5 5 1.0e-20
+} {abc: 5 5 (1.00000e-20) :xyz}
+do_test printf-2.2.2.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 5 5 1.0e-20
+} {abc: 5 5 (000001e-20) :xyz}
+do_test printf-2.2.2.7 {
+  sqlite3_mprintf_double {abc: %d %d (%5.5f) :xyz} 5 5 1.0e-20
+} {abc: 5 5 (0.00000) :xyz}
+do_test printf-2.2.2.8 {
+  sqlite3_mprintf_double {abc: %d %d (%5.5e) :xyz} 5 5 1.0e-20
+} {abc: 5 5 (1.00000e-20) :xyz}
+do_test printf-2.2.2.9 {
+  sqlite3_mprintf_double {abc: %d %d (%5.5g) :xyz} 5 5 1.0e-20
+} {abc: 5 5 (1e-20) :xyz}
+do_test printf-2.2.3.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 5 5 1.0
+} {abc: (1.00000) :xyz}
+do_test printf-2.2.3.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 5 5 1.0
+} {abc: (1.00000e+00) :xyz}
+do_test printf-2.2.3.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 5 5 1.0
+} {abc: (    1) :xyz}
+do_test printf-2.2.3.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 5 5 1.0
+} {abc: 5 5 (1) :xyz}
+do_test printf-2.2.3.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 5 5 1.0
+} {abc: 5 5 (1.00000) :xyz}
+do_test printf-2.2.3.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 5 5 1.0
+} {abc: 5 5 (0000000001) :xyz}
+do_test printf-2.2.3.7 {
+  sqlite3_mprintf_double {abc: %d %d (%5.5f) :xyz} 5 5 1.0
+} {abc: 5 5 (1.00000) :xyz}
+do_test printf-2.2.3.8 {
+  sqlite3_mprintf_double {abc: %d %d (%5.5e) :xyz} 5 5 1.0
+} {abc: 5 5 (1.00000e+00) :xyz}
+do_test printf-2.2.3.9 {
+  sqlite3_mprintf_double {abc: %d %d (%5.5g) :xyz} 5 5 1.0
+} {abc: 5 5 (    1) :xyz}
+do_test printf-2.2.4.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 5 5 0.0
+} {abc: (0.00000) :xyz}
+do_test printf-2.2.4.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 5 5 0.0
+} {abc: (0.00000e+00) :xyz}
+do_test printf-2.2.4.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 5 5 0.0
+} {abc: (    0) :xyz}
+do_test printf-2.2.4.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 5 5 0.0
+} {abc: 5 5 (0) :xyz}
+do_test printf-2.2.4.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 5 5 0.0
+} {abc: 5 5 (0.00000) :xyz}
+do_test printf-2.2.4.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 5 5 0.0
+} {abc: 5 5 (0000000000) :xyz}
+do_test printf-2.2.4.7 {
+  sqlite3_mprintf_double {abc: %d %d (%5.5f) :xyz} 5 5 0.0
+} {abc: 5 5 (0.00000) :xyz}
+do_test printf-2.2.4.8 {
+  sqlite3_mprintf_double {abc: %d %d (%5.5e) :xyz} 5 5 0.0
+} {abc: 5 5 (0.00000e+00) :xyz}
+do_test printf-2.2.4.9 {
+  sqlite3_mprintf_double {abc: %d %d (%5.5g) :xyz} 5 5 0.0
+} {abc: 5 5 (    0) :xyz}
+do_test printf-2.2.5.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 5 5 100.0
+} {abc: (100.00000) :xyz}
+do_test printf-2.2.5.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 5 5 100.0
+} {abc: (1.00000e+02) :xyz}
+do_test printf-2.2.5.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 5 5 100.0
+} {abc: (  100) :xyz}
+do_test printf-2.2.5.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 5 5 100.0
+} {abc: 5 5 (100) :xyz}
+do_test printf-2.2.5.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 5 5 100.0
+} {abc: 5 5 (100.000) :xyz}
+do_test printf-2.2.5.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 5 5 100.0
+} {abc: 5 5 (0000000100) :xyz}
+do_test printf-2.2.5.7 {
+  sqlite3_mprintf_double {abc: %d %d (%5.5f) :xyz} 5 5 100.0
+} {abc: 5 5 (100.00000) :xyz}
+do_test printf-2.2.5.8 {
+  sqlite3_mprintf_double {abc: %d %d (%5.5e) :xyz} 5 5 100.0
+} {abc: 5 5 (1.00000e+02) :xyz}
+do_test printf-2.2.5.9 {
+  sqlite3_mprintf_double {abc: %d %d (%5.5g) :xyz} 5 5 100.0
+} {abc: 5 5 (  100) :xyz}
+do_test printf-2.2.6.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 5 5 9.99999
+} {abc: (9.99999) :xyz}
+do_test printf-2.2.6.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 5 5 9.99999
+} {abc: (9.99999e+00) :xyz}
+do_test printf-2.2.6.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 5 5 9.99999
+} {abc: (   10) :xyz}
+do_test printf-2.2.6.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 5 5 9.99999
+} {abc: 5 5 (9.99999) :xyz}
+do_test printf-2.2.6.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 5 5 9.99999
+} {abc: 5 5 (9.99999) :xyz}
+do_test printf-2.2.6.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 5 5 9.99999
+} {abc: 5 5 (0009.99999) :xyz}
+do_test printf-2.2.6.7 {
+  sqlite3_mprintf_double {abc: %d %d (%5.5f) :xyz} 5 5 9.99999
+} {abc: 5 5 (9.99999) :xyz}
+do_test printf-2.2.6.8 {
+  sqlite3_mprintf_double {abc: %d %d (%5.5e) :xyz} 5 5 9.99999
+} {abc: 5 5 (9.99999e+00) :xyz}
+do_test printf-2.2.6.9 {
+  sqlite3_mprintf_double {abc: %d %d (%5.5g) :xyz} 5 5 9.99999
+} {abc: 5 5 (   10) :xyz}
+do_test printf-2.2.7.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 5 5 -0.00543
+} {abc: (-0.00543) :xyz}
+do_test printf-2.2.7.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 5 5 -0.00543
+} {abc: (-5.43000e-03) :xyz}
+do_test printf-2.2.7.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 5 5 -0.00543
+} {abc: (-0.00543) :xyz}
+do_test printf-2.2.7.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 5 5 -0.00543
+} {abc: 5 5 (-0.00543) :xyz}
+do_test printf-2.2.7.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 5 5 -0.00543
+} {abc: 5 5 (-0.00543000) :xyz}
+do_test printf-2.2.7.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 5 5 -0.00543
+} {abc: 5 5 (-000.00543) :xyz}
+do_test printf-2.2.7.7 {
+  sqlite3_mprintf_double {abc: %d %d (%5.5f) :xyz} 5 5 -0.00543
+} {abc: 5 5 (-0.00543) :xyz}
+do_test printf-2.2.7.8 {
+  sqlite3_mprintf_double {abc: %d %d (%5.5e) :xyz} 5 5 -0.00543
+} {abc: 5 5 (-5.43000e-03) :xyz}
+do_test printf-2.2.7.9 {
+  sqlite3_mprintf_double {abc: %d %d (%5.5g) :xyz} 5 5 -0.00543
+} {abc: 5 5 (-0.00543) :xyz}
+do_test printf-2.2.8.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 5 5 -1.0
+} {abc: (-1.00000) :xyz}
+do_test printf-2.2.8.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 5 5 -1.0
+} {abc: (-1.00000e+00) :xyz}
+do_test printf-2.2.8.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 5 5 -1.0
+} {abc: (   -1) :xyz}
+do_test printf-2.2.8.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 5 5 -1.0
+} {abc: 5 5 (-1) :xyz}
+do_test printf-2.2.8.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 5 5 -1.0
+} {abc: 5 5 (-1.00000) :xyz}
+do_test printf-2.2.8.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 5 5 -1.0
+} {abc: 5 5 (-000000001) :xyz}
+do_test printf-2.2.8.7 {
+  sqlite3_mprintf_double {abc: %d %d (%5.5f) :xyz} 5 5 -1.0
+} {abc: 5 5 (-1.00000) :xyz}
+do_test printf-2.2.8.8 {
+  sqlite3_mprintf_double {abc: %d %d (%5.5e) :xyz} 5 5 -1.0
+} {abc: 5 5 (-1.00000e+00) :xyz}
+do_test printf-2.2.8.9 {
+  sqlite3_mprintf_double {abc: %d %d (%5.5g) :xyz} 5 5 -1.0
+} {abc: 5 5 (   -1) :xyz}
+do_test printf-2.2.9.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 5 5 -99.99999
+} {abc: (-99.99999) :xyz}
+do_test printf-2.2.9.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 5 5 -99.99999
+} {abc: (-1.00000e+02) :xyz}
+do_test printf-2.2.9.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 5 5 -99.99999
+} {abc: ( -100) :xyz}
+do_test printf-2.2.9.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 5 5 -99.99999
+} {abc: 5 5 (-100) :xyz}
+do_test printf-2.2.9.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 5 5 -99.99999
+} {abc: 5 5 (-100.000) :xyz}
+do_test printf-2.2.9.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 5 5 -99.99999
+} {abc: 5 5 (-000000100) :xyz}
+do_test printf-2.2.9.7 {
+  sqlite3_mprintf_double {abc: %d %d (%5.5f) :xyz} 5 5 -99.99999
+} {abc: 5 5 (-99.99999) :xyz}
+do_test printf-2.2.9.8 {
+  sqlite3_mprintf_double {abc: %d %d (%5.5e) :xyz} 5 5 -99.99999
+} {abc: 5 5 (-1.00000e+02) :xyz}
+do_test printf-2.2.9.9 {
+  sqlite3_mprintf_double {abc: %d %d (%5.5g) :xyz} 5 5 -99.99999
+} {abc: 5 5 ( -100) :xyz}
+do_test printf-2.2.10.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 5 5 3.14e+9
+} {abc: (3140000000.00000) :xyz}
+do_test printf-2.2.10.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 5 5 3.14e+9
+} {abc: (3.14000e+09) :xyz}
+do_test printf-2.2.10.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 5 5 3.14e+9
+} {abc: (3.14e+09) :xyz}
+do_test printf-2.2.10.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 5 5 3.14e+9
+} {abc: 5 5 (3.14e+09) :xyz}
+do_test printf-2.2.10.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 5 5 3.14e+9
+} {abc: 5 5 (3.14000e+09) :xyz}
+do_test printf-2.2.10.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 5 5 3.14e+9
+} {abc: 5 5 (003.14e+09) :xyz}
+do_test printf-2.2.10.7 {
+  sqlite3_mprintf_double {abc: %d %d (%5.5f) :xyz} 5 5 3.14e+9
+} {abc: 5 5 (3140000000.00000) :xyz}
+do_test printf-2.2.10.8 {
+  sqlite3_mprintf_double {abc: %d %d (%5.5e) :xyz} 5 5 3.14e+9
+} {abc: 5 5 (3.14000e+09) :xyz}
+do_test printf-2.2.10.9 {
+  sqlite3_mprintf_double {abc: %d %d (%5.5g) :xyz} 5 5 3.14e+9
+} {abc: 5 5 (3.14e+09) :xyz}
+do_test printf-2.2.11.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 5 5 -4.72732e+88
+} {abc: (-4.72732e+88) :xyz}
+do_test printf-2.2.11.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 5 5 -4.72732e+88
+} {abc: (-4.7273e+88) :xyz}
+do_test printf-2.2.11.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 5 5 -4.72732e+88
+} {abc: 5 5 (-4.72732e+88) :xyz}
+do_test printf-2.2.11.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 5 5 -4.72732e+88
+} {abc: 5 5 (-4.72732e+88) :xyz}
+do_test printf-2.2.11.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 5 5 -4.72732e+88
+} {abc: 5 5 (-4.72732e+88) :xyz}
+do_test printf-2.2.11.8 {
+  sqlite3_mprintf_double {abc: %d %d (%5.5e) :xyz} 5 5 -4.72732e+88
+} {abc: 5 5 (-4.72732e+88) :xyz}
+do_test printf-2.2.11.9 {
+  sqlite3_mprintf_double {abc: %d %d (%5.5g) :xyz} 5 5 -4.72732e+88
+} {abc: 5 5 (-4.7273e+88) :xyz}
+do_test printf-2.2.12.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 5 5 9.87991e+143
+} {abc: (9.87991e+143) :xyz}
+do_test printf-2.2.12.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 5 5 9.87991e+143
+} {abc: (9.8799e+143) :xyz}
+do_test printf-2.2.12.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 5 5 9.87991e+143
+} {abc: 5 5 (9.87991e+143) :xyz}
+do_test printf-2.2.12.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 5 5 9.87991e+143
+} {abc: 5 5 (9.87991e+143) :xyz}
+do_test printf-2.2.12.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 5 5 9.87991e+143
+} {abc: 5 5 (9.87991e+143) :xyz}
+do_test printf-2.2.12.8 {
+  sqlite3_mprintf_double {abc: %d %d (%5.5e) :xyz} 5 5 9.87991e+143
+} {abc: 5 5 (9.87991e+143) :xyz}
+do_test printf-2.2.12.9 {
+  sqlite3_mprintf_double {abc: %d %d (%5.5g) :xyz} 5 5 9.87991e+143
+} {abc: 5 5 (9.8799e+143) :xyz}
+do_test printf-2.2.13.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 5 5 -6.287291e-9
+} {abc: (-0.00000) :xyz}
+do_test printf-2.2.13.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 5 5 -6.287291e-9
+} {abc: (-6.28729e-09) :xyz}
+do_test printf-2.2.13.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 5 5 -6.287291e-9
+} {abc: (-6.2873e-09) :xyz}
+do_test printf-2.2.13.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 5 5 -6.287291e-9
+} {abc: 5 5 (-6.28729e-09) :xyz}
+do_test printf-2.2.13.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 5 5 -6.287291e-9
+} {abc: 5 5 (-6.28729e-09) :xyz}
+do_test printf-2.2.13.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 5 5 -6.287291e-9
+} {abc: 5 5 (-6.28729e-09) :xyz}
+do_test printf-2.2.13.7 {
+  sqlite3_mprintf_double {abc: %d %d (%5.5f) :xyz} 5 5 -6.287291e-9
+} {abc: 5 5 (-0.00000) :xyz}
+do_test printf-2.2.13.8 {
+  sqlite3_mprintf_double {abc: %d %d (%5.5e) :xyz} 5 5 -6.287291e-9
+} {abc: 5 5 (-6.28729e-09) :xyz}
+do_test printf-2.2.13.9 {
+  sqlite3_mprintf_double {abc: %d %d (%5.5g) :xyz} 5 5 -6.287291e-9
+} {abc: 5 5 (-6.2873e-09) :xyz}
+do_test printf-2.2.14.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 5 5 3.38826392e-110
+} {abc: (0.00000) :xyz}
+do_test printf-2.2.14.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 5 5 3.38826392e-110
+} {abc: (3.38826e-110) :xyz}
+do_test printf-2.2.14.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 5 5 3.38826392e-110
+} {abc: (3.3883e-110) :xyz}
+do_test printf-2.2.14.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 5 5 3.38826392e-110
+} {abc: 5 5 (3.38826e-110) :xyz}
+do_test printf-2.2.14.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 5 5 3.38826392e-110
+} {abc: 5 5 (3.38826e-110) :xyz}
+do_test printf-2.2.14.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 5 5 3.38826392e-110
+} {abc: 5 5 (3.38826e-110) :xyz}
+do_test printf-2.2.14.7 {
+  sqlite3_mprintf_double {abc: %d %d (%5.5f) :xyz} 5 5 3.38826392e-110
+} {abc: 5 5 (0.00000) :xyz}
+do_test printf-2.2.14.8 {
+  sqlite3_mprintf_double {abc: %d %d (%5.5e) :xyz} 5 5 3.38826392e-110
+} {abc: 5 5 (3.38826e-110) :xyz}
+do_test printf-2.2.14.9 {
+  sqlite3_mprintf_double {abc: %d %d (%5.5g) :xyz} 5 5 3.38826392e-110
+} {abc: 5 5 (3.3883e-110) :xyz}
+do_test printf-2.3.1.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 10 10 0.001
+} {abc: (0.0010000000) :xyz}
+do_test printf-2.3.1.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 10 10 0.001
+} {abc: (1.0000000000e-03) :xyz}
+do_test printf-2.3.1.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 10 10 0.001
+} {abc: (     0.001) :xyz}
+do_test printf-2.3.1.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 10 10 0.001
+} {abc: 10 10 (0.001) :xyz}
+do_test printf-2.3.1.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 10 10 0.001
+} {abc: 10 10 (0.00100000) :xyz}
+do_test printf-2.3.1.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 10 10 0.001
+} {abc: 10 10 (000000.001) :xyz}
+do_test printf-2.3.1.7 {
+  sqlite3_mprintf_double {abc: %d %d (%10.10f) :xyz} 10 10 0.001
+} {abc: 10 10 (0.0010000000) :xyz}
+do_test printf-2.3.1.8 {
+  sqlite3_mprintf_double {abc: %d %d (%10.10e) :xyz} 10 10 0.001
+} {abc: 10 10 (1.0000000000e-03) :xyz}
+do_test printf-2.3.1.9 {
+  sqlite3_mprintf_double {abc: %d %d (%10.10g) :xyz} 10 10 0.001
+} {abc: 10 10 (     0.001) :xyz}
+do_test printf-2.3.2.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 10 10 1.0e-20
+} {abc: (0.0000000000) :xyz}
+do_test printf-2.3.2.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 10 10 1.0e-20
+} {abc: (1.0000000000e-20) :xyz}
+do_test printf-2.3.2.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 10 10 1.0e-20
+} {abc: (     1e-20) :xyz}
+do_test printf-2.3.2.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 10 10 1.0e-20
+} {abc: 10 10 (1e-20) :xyz}
+do_test printf-2.3.2.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 10 10 1.0e-20
+} {abc: 10 10 (1.00000e-20) :xyz}
+do_test printf-2.3.2.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 10 10 1.0e-20
+} {abc: 10 10 (000001e-20) :xyz}
+do_test printf-2.3.2.7 {
+  sqlite3_mprintf_double {abc: %d %d (%10.10f) :xyz} 10 10 1.0e-20
+} {abc: 10 10 (0.0000000000) :xyz}
+do_test printf-2.3.2.8 {
+  sqlite3_mprintf_double {abc: %d %d (%10.10e) :xyz} 10 10 1.0e-20
+} {abc: 10 10 (1.0000000000e-20) :xyz}
+do_test printf-2.3.2.9 {
+  sqlite3_mprintf_double {abc: %d %d (%10.10g) :xyz} 10 10 1.0e-20
+} {abc: 10 10 (     1e-20) :xyz}
+do_test printf-2.3.3.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 10 10 1.0
+} {abc: (1.0000000000) :xyz}
+do_test printf-2.3.3.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 10 10 1.0
+} {abc: (1.0000000000e+00) :xyz}
+do_test printf-2.3.3.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 10 10 1.0
+} {abc: (         1) :xyz}
+do_test printf-2.3.3.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 10 10 1.0
+} {abc: 10 10 (1) :xyz}
+do_test printf-2.3.3.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 10 10 1.0
+} {abc: 10 10 (1.00000) :xyz}
+do_test printf-2.3.3.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 10 10 1.0
+} {abc: 10 10 (0000000001) :xyz}
+do_test printf-2.3.3.7 {
+  sqlite3_mprintf_double {abc: %d %d (%10.10f) :xyz} 10 10 1.0
+} {abc: 10 10 (1.0000000000) :xyz}
+do_test printf-2.3.3.8 {
+  sqlite3_mprintf_double {abc: %d %d (%10.10e) :xyz} 10 10 1.0
+} {abc: 10 10 (1.0000000000e+00) :xyz}
+do_test printf-2.3.3.9 {
+  sqlite3_mprintf_double {abc: %d %d (%10.10g) :xyz} 10 10 1.0
+} {abc: 10 10 (         1) :xyz}
+do_test printf-2.3.4.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 10 10 0.0
+} {abc: (0.0000000000) :xyz}
+do_test printf-2.3.4.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 10 10 0.0
+} {abc: (0.0000000000e+00) :xyz}
+do_test printf-2.3.4.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 10 10 0.0
+} {abc: (         0) :xyz}
+do_test printf-2.3.4.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 10 10 0.0
+} {abc: 10 10 (0) :xyz}
+do_test printf-2.3.4.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 10 10 0.0
+} {abc: 10 10 (0.00000) :xyz}
+do_test printf-2.3.4.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 10 10 0.0
+} {abc: 10 10 (0000000000) :xyz}
+do_test printf-2.3.4.7 {
+  sqlite3_mprintf_double {abc: %d %d (%10.10f) :xyz} 10 10 0.0
+} {abc: 10 10 (0.0000000000) :xyz}
+do_test printf-2.3.4.8 {
+  sqlite3_mprintf_double {abc: %d %d (%10.10e) :xyz} 10 10 0.0
+} {abc: 10 10 (0.0000000000e+00) :xyz}
+do_test printf-2.3.4.9 {
+  sqlite3_mprintf_double {abc: %d %d (%10.10g) :xyz} 10 10 0.0
+} {abc: 10 10 (         0) :xyz}
+do_test printf-2.3.5.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 10 10 100.0
+} {abc: (100.0000000000) :xyz}
+do_test printf-2.3.5.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 10 10 100.0
+} {abc: (1.0000000000e+02) :xyz}
+do_test printf-2.3.5.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 10 10 100.0
+} {abc: (       100) :xyz}
+do_test printf-2.3.5.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 10 10 100.0
+} {abc: 10 10 (100) :xyz}
+do_test printf-2.3.5.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 10 10 100.0
+} {abc: 10 10 (100.000) :xyz}
+do_test printf-2.3.5.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 10 10 100.0
+} {abc: 10 10 (0000000100) :xyz}
+do_test printf-2.3.5.7 {
+  sqlite3_mprintf_double {abc: %d %d (%10.10f) :xyz} 10 10 100.0
+} {abc: 10 10 (100.0000000000) :xyz}
+do_test printf-2.3.5.8 {
+  sqlite3_mprintf_double {abc: %d %d (%10.10e) :xyz} 10 10 100.0
+} {abc: 10 10 (1.0000000000e+02) :xyz}
+do_test printf-2.3.5.9 {
+  sqlite3_mprintf_double {abc: %d %d (%10.10g) :xyz} 10 10 100.0
+} {abc: 10 10 (       100) :xyz}
+do_test printf-2.3.6.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 10 10 9.99999
+} {abc: (9.9999900000) :xyz}
+do_test printf-2.3.6.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 10 10 9.99999
+} {abc: (9.9999900000e+00) :xyz}
+do_test printf-2.3.6.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 10 10 9.99999
+} {abc: (   9.99999) :xyz}
+do_test printf-2.3.6.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 10 10 9.99999
+} {abc: 10 10 (9.99999) :xyz}
+do_test printf-2.3.6.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 10 10 9.99999
+} {abc: 10 10 (9.99999) :xyz}
+do_test printf-2.3.6.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 10 10 9.99999
+} {abc: 10 10 (0009.99999) :xyz}
+do_test printf-2.3.6.7 {
+  sqlite3_mprintf_double {abc: %d %d (%10.10f) :xyz} 10 10 9.99999
+} {abc: 10 10 (9.9999900000) :xyz}
+do_test printf-2.3.6.8 {
+  sqlite3_mprintf_double {abc: %d %d (%10.10e) :xyz} 10 10 9.99999
+} {abc: 10 10 (9.9999900000e+00) :xyz}
+do_test printf-2.3.6.9 {
+  sqlite3_mprintf_double {abc: %d %d (%10.10g) :xyz} 10 10 9.99999
+} {abc: 10 10 (   9.99999) :xyz}
+do_test printf-2.3.7.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 10 10 -0.00543
+} {abc: (-0.0054300000) :xyz}
+do_test printf-2.3.7.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 10 10 -0.00543
+} {abc: (-5.4300000000e-03) :xyz}
+do_test printf-2.3.7.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 10 10 -0.00543
+} {abc: (  -0.00543) :xyz}
+do_test printf-2.3.7.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 10 10 -0.00543
+} {abc: 10 10 (-0.00543) :xyz}
+do_test printf-2.3.7.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 10 10 -0.00543
+} {abc: 10 10 (-0.00543000) :xyz}
+do_test printf-2.3.7.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 10 10 -0.00543
+} {abc: 10 10 (-000.00543) :xyz}
+do_test printf-2.3.7.7 {
+  sqlite3_mprintf_double {abc: %d %d (%10.10f) :xyz} 10 10 -0.00543
+} {abc: 10 10 (-0.0054300000) :xyz}
+do_test printf-2.3.7.8 {
+  sqlite3_mprintf_double {abc: %d %d (%10.10e) :xyz} 10 10 -0.00543
+} {abc: 10 10 (-5.4300000000e-03) :xyz}
+do_test printf-2.3.7.9 {
+  sqlite3_mprintf_double {abc: %d %d (%10.10g) :xyz} 10 10 -0.00543
+} {abc: 10 10 (  -0.00543) :xyz}
+do_test printf-2.3.8.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 10 10 -1.0
+} {abc: (-1.0000000000) :xyz}
+do_test printf-2.3.8.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 10 10 -1.0
+} {abc: (-1.0000000000e+00) :xyz}
+do_test printf-2.3.8.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 10 10 -1.0
+} {abc: (        -1) :xyz}
+do_test printf-2.3.8.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 10 10 -1.0
+} {abc: 10 10 (-1) :xyz}
+do_test printf-2.3.8.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 10 10 -1.0
+} {abc: 10 10 (-1.00000) :xyz}
+do_test printf-2.3.8.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 10 10 -1.0
+} {abc: 10 10 (-000000001) :xyz}
+do_test printf-2.3.8.7 {
+  sqlite3_mprintf_double {abc: %d %d (%10.10f) :xyz} 10 10 -1.0
+} {abc: 10 10 (-1.0000000000) :xyz}
+do_test printf-2.3.8.8 {
+  sqlite3_mprintf_double {abc: %d %d (%10.10e) :xyz} 10 10 -1.0
+} {abc: 10 10 (-1.0000000000e+00) :xyz}
+do_test printf-2.3.8.9 {
+  sqlite3_mprintf_double {abc: %d %d (%10.10g) :xyz} 10 10 -1.0
+} {abc: 10 10 (        -1) :xyz}
+do_test printf-2.3.9.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 10 10 -99.99999
+} {abc: (-99.9999900000) :xyz}
+do_test printf-2.3.9.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 10 10 -99.99999
+} {abc: (-9.9999990000e+01) :xyz}
+do_test printf-2.3.9.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 10 10 -99.99999
+} {abc: ( -99.99999) :xyz}
+do_test printf-2.3.9.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 10 10 -99.99999
+} {abc: 10 10 (-100) :xyz}
+do_test printf-2.3.9.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 10 10 -99.99999
+} {abc: 10 10 (-100.000) :xyz}
+do_test printf-2.3.9.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 10 10 -99.99999
+} {abc: 10 10 (-000000100) :xyz}
+do_test printf-2.3.9.7 {
+  sqlite3_mprintf_double {abc: %d %d (%10.10f) :xyz} 10 10 -99.99999
+} {abc: 10 10 (-99.9999900000) :xyz}
+do_test printf-2.3.9.8 {
+  sqlite3_mprintf_double {abc: %d %d (%10.10e) :xyz} 10 10 -99.99999
+} {abc: 10 10 (-9.9999990000e+01) :xyz}
+do_test printf-2.3.9.9 {
+  sqlite3_mprintf_double {abc: %d %d (%10.10g) :xyz} 10 10 -99.99999
+} {abc: 10 10 ( -99.99999) :xyz}
+do_test printf-2.3.10.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 10 10 3.14e+9
+} {abc: (3140000000.0000000000) :xyz}
+do_test printf-2.3.10.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 10 10 3.14e+9
+} {abc: (3.1400000000e+09) :xyz}
+do_test printf-2.3.10.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 10 10 3.14e+9
+} {abc: (3140000000) :xyz}
+do_test printf-2.3.10.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 10 10 3.14e+9
+} {abc: 10 10 (3.14e+09) :xyz}
+do_test printf-2.3.10.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 10 10 3.14e+9
+} {abc: 10 10 (3.14000e+09) :xyz}
+do_test printf-2.3.10.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 10 10 3.14e+9
+} {abc: 10 10 (003.14e+09) :xyz}
+do_test printf-2.3.10.7 {
+  sqlite3_mprintf_double {abc: %d %d (%10.10f) :xyz} 10 10 3.14e+9
+} {abc: 10 10 (3140000000.0000000000) :xyz}
+do_test printf-2.3.10.8 {
+  sqlite3_mprintf_double {abc: %d %d (%10.10e) :xyz} 10 10 3.14e+9
+} {abc: 10 10 (3.1400000000e+09) :xyz}
+do_test printf-2.3.10.9 {
+  sqlite3_mprintf_double {abc: %d %d (%10.10g) :xyz} 10 10 3.14e+9
+} {abc: 10 10 (3140000000) :xyz}
+do_test printf-2.3.11.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 10 10 -4.72732e+88
+} {abc: (-4.7273200000e+88) :xyz}
+do_test printf-2.3.11.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 10 10 -4.72732e+88
+} {abc: (-4.72732e+88) :xyz}
+do_test printf-2.3.11.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 10 10 -4.72732e+88
+} {abc: 10 10 (-4.72732e+88) :xyz}
+do_test printf-2.3.11.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 10 10 -4.72732e+88
+} {abc: 10 10 (-4.72732e+88) :xyz}
+do_test printf-2.3.11.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 10 10 -4.72732e+88
+} {abc: 10 10 (-4.72732e+88) :xyz}
+do_test printf-2.3.11.8 {
+  sqlite3_mprintf_double {abc: %d %d (%10.10e) :xyz} 10 10 -4.72732e+88
+} {abc: 10 10 (-4.7273200000e+88) :xyz}
+do_test printf-2.3.11.9 {
+  sqlite3_mprintf_double {abc: %d %d (%10.10g) :xyz} 10 10 -4.72732e+88
+} {abc: 10 10 (-4.72732e+88) :xyz}
+do_test printf-2.3.12.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 10 10 9.87991e+143
+} {abc: (9.8799100000e+143) :xyz}
+do_test printf-2.3.12.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 10 10 9.87991e+143
+} {abc: (9.87991e+143) :xyz}
+do_test printf-2.3.12.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 10 10 9.87991e+143
+} {abc: 10 10 (9.87991e+143) :xyz}
+do_test printf-2.3.12.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 10 10 9.87991e+143
+} {abc: 10 10 (9.87991e+143) :xyz}
+do_test printf-2.3.12.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 10 10 9.87991e+143
+} {abc: 10 10 (9.87991e+143) :xyz}
+do_test printf-2.3.12.8 {
+  sqlite3_mprintf_double {abc: %d %d (%10.10e) :xyz} 10 10 9.87991e+143
+} {abc: 10 10 (9.8799100000e+143) :xyz}
+do_test printf-2.3.12.9 {
+  sqlite3_mprintf_double {abc: %d %d (%10.10g) :xyz} 10 10 9.87991e+143
+} {abc: 10 10 (9.87991e+143) :xyz}
+do_test printf-2.3.13.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 10 10 -6.287291e-9
+} {abc: (-0.0000000063) :xyz}
+do_test printf-2.3.13.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 10 10 -6.287291e-9
+} {abc: (-6.2872910000e-09) :xyz}
+do_test printf-2.3.13.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 10 10 -6.287291e-9
+} {abc: (-6.287291e-09) :xyz}
+do_test printf-2.3.13.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 10 10 -6.287291e-9
+} {abc: 10 10 (-6.28729e-09) :xyz}
+do_test printf-2.3.13.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 10 10 -6.287291e-9
+} {abc: 10 10 (-6.28729e-09) :xyz}
+do_test printf-2.3.13.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 10 10 -6.287291e-9
+} {abc: 10 10 (-6.28729e-09) :xyz}
+do_test printf-2.3.13.7 {
+  sqlite3_mprintf_double {abc: %d %d (%10.10f) :xyz} 10 10 -6.287291e-9
+} {abc: 10 10 (-0.0000000063) :xyz}
+do_test printf-2.3.13.8 {
+  sqlite3_mprintf_double {abc: %d %d (%10.10e) :xyz} 10 10 -6.287291e-9
+} {abc: 10 10 (-6.2872910000e-09) :xyz}
+do_test printf-2.3.13.9 {
+  sqlite3_mprintf_double {abc: %d %d (%10.10g) :xyz} 10 10 -6.287291e-9
+} {abc: 10 10 (-6.287291e-09) :xyz}
+do_test printf-2.3.14.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 10 10 3.38826392e-110
+} {abc: (0.0000000000) :xyz}
+do_test printf-2.3.14.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 10 10 3.38826392e-110
+} {abc: (3.3882639200e-110) :xyz}
+do_test printf-2.3.14.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 10 10 3.38826392e-110
+} {abc: (3.38826392e-110) :xyz}
+do_test printf-2.3.14.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 10 10 3.38826392e-110
+} {abc: 10 10 (3.38826e-110) :xyz}
+do_test printf-2.3.14.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 10 10 3.38826392e-110
+} {abc: 10 10 (3.38826e-110) :xyz}
+do_test printf-2.3.14.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 10 10 3.38826392e-110
+} {abc: 10 10 (3.38826e-110) :xyz}
+do_test printf-2.3.14.7 {
+  sqlite3_mprintf_double {abc: %d %d (%10.10f) :xyz} 10 10 3.38826392e-110
+} {abc: 10 10 (0.0000000000) :xyz}
+do_test printf-2.3.14.8 {
+  sqlite3_mprintf_double {abc: %d %d (%10.10e) :xyz} 10 10 3.38826392e-110
+} {abc: 10 10 (3.3882639200e-110) :xyz}
+do_test printf-2.3.14.9 {
+  sqlite3_mprintf_double {abc: %d %d (%10.10g) :xyz} 10 10 3.38826392e-110
+} {abc: 10 10 (3.38826392e-110) :xyz}
+do_test printf-2.4.1.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 10 5 0.001
+} {abc: (   0.00100) :xyz}
+do_test printf-2.4.1.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 10 5 0.001
+} {abc: (1.00000e-03) :xyz}
+do_test printf-2.4.1.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 10 5 0.001
+} {abc: (     0.001) :xyz}
+do_test printf-2.4.1.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 10 5 0.001
+} {abc: 10 5 (0.001) :xyz}
+do_test printf-2.4.1.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 10 5 0.001
+} {abc: 10 5 (0.00100000) :xyz}
+do_test printf-2.4.1.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 10 5 0.001
+} {abc: 10 5 (000000.001) :xyz}
+do_test printf-2.4.1.7 {
+  sqlite3_mprintf_double {abc: %d %d (%10.5f) :xyz} 10 5 0.001
+} {abc: 10 5 (   0.00100) :xyz}
+do_test printf-2.4.1.8 {
+  sqlite3_mprintf_double {abc: %d %d (%10.5e) :xyz} 10 5 0.001
+} {abc: 10 5 (1.00000e-03) :xyz}
+do_test printf-2.4.1.9 {
+  sqlite3_mprintf_double {abc: %d %d (%10.5g) :xyz} 10 5 0.001
+} {abc: 10 5 (     0.001) :xyz}
+do_test printf-2.4.2.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 10 5 1.0e-20
+} {abc: (   0.00000) :xyz}
+do_test printf-2.4.2.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 10 5 1.0e-20
+} {abc: (1.00000e-20) :xyz}
+do_test printf-2.4.2.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 10 5 1.0e-20
+} {abc: (     1e-20) :xyz}
+do_test printf-2.4.2.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 10 5 1.0e-20
+} {abc: 10 5 (1e-20) :xyz}
+do_test printf-2.4.2.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 10 5 1.0e-20
+} {abc: 10 5 (1.00000e-20) :xyz}
+do_test printf-2.4.2.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 10 5 1.0e-20
+} {abc: 10 5 (000001e-20) :xyz}
+do_test printf-2.4.2.7 {
+  sqlite3_mprintf_double {abc: %d %d (%10.5f) :xyz} 10 5 1.0e-20
+} {abc: 10 5 (   0.00000) :xyz}
+do_test printf-2.4.2.8 {
+  sqlite3_mprintf_double {abc: %d %d (%10.5e) :xyz} 10 5 1.0e-20
+} {abc: 10 5 (1.00000e-20) :xyz}
+do_test printf-2.4.2.9 {
+  sqlite3_mprintf_double {abc: %d %d (%10.5g) :xyz} 10 5 1.0e-20
+} {abc: 10 5 (     1e-20) :xyz}
+do_test printf-2.4.3.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 10 5 1.0
+} {abc: (   1.00000) :xyz}
+do_test printf-2.4.3.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 10 5 1.0
+} {abc: (1.00000e+00) :xyz}
+do_test printf-2.4.3.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 10 5 1.0
+} {abc: (         1) :xyz}
+do_test printf-2.4.3.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 10 5 1.0
+} {abc: 10 5 (1) :xyz}
+do_test printf-2.4.3.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 10 5 1.0
+} {abc: 10 5 (1.00000) :xyz}
+do_test printf-2.4.3.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 10 5 1.0
+} {abc: 10 5 (0000000001) :xyz}
+do_test printf-2.4.3.7 {
+  sqlite3_mprintf_double {abc: %d %d (%10.5f) :xyz} 10 5 1.0
+} {abc: 10 5 (   1.00000) :xyz}
+do_test printf-2.4.3.8 {
+  sqlite3_mprintf_double {abc: %d %d (%10.5e) :xyz} 10 5 1.0
+} {abc: 10 5 (1.00000e+00) :xyz}
+do_test printf-2.4.3.9 {
+  sqlite3_mprintf_double {abc: %d %d (%10.5g) :xyz} 10 5 1.0
+} {abc: 10 5 (         1) :xyz}
+do_test printf-2.4.4.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 10 5 0.0
+} {abc: (   0.00000) :xyz}
+do_test printf-2.4.4.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 10 5 0.0
+} {abc: (0.00000e+00) :xyz}
+do_test printf-2.4.4.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 10 5 0.0
+} {abc: (         0) :xyz}
+do_test printf-2.4.4.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 10 5 0.0
+} {abc: 10 5 (0) :xyz}
+do_test printf-2.4.4.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 10 5 0.0
+} {abc: 10 5 (0.00000) :xyz}
+do_test printf-2.4.4.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 10 5 0.0
+} {abc: 10 5 (0000000000) :xyz}
+do_test printf-2.4.4.7 {
+  sqlite3_mprintf_double {abc: %d %d (%10.5f) :xyz} 10 5 0.0
+} {abc: 10 5 (   0.00000) :xyz}
+do_test printf-2.4.4.8 {
+  sqlite3_mprintf_double {abc: %d %d (%10.5e) :xyz} 10 5 0.0
+} {abc: 10 5 (0.00000e+00) :xyz}
+do_test printf-2.4.4.9 {
+  sqlite3_mprintf_double {abc: %d %d (%10.5g) :xyz} 10 5 0.0
+} {abc: 10 5 (         0) :xyz}
+do_test printf-2.4.5.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 10 5 100.0
+} {abc: ( 100.00000) :xyz}
+do_test printf-2.4.5.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 10 5 100.0
+} {abc: (1.00000e+02) :xyz}
+do_test printf-2.4.5.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 10 5 100.0
+} {abc: (       100) :xyz}
+do_test printf-2.4.5.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 10 5 100.0
+} {abc: 10 5 (100) :xyz}
+do_test printf-2.4.5.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 10 5 100.0
+} {abc: 10 5 (100.000) :xyz}
+do_test printf-2.4.5.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 10 5 100.0
+} {abc: 10 5 (0000000100) :xyz}
+do_test printf-2.4.5.7 {
+  sqlite3_mprintf_double {abc: %d %d (%10.5f) :xyz} 10 5 100.0
+} {abc: 10 5 ( 100.00000) :xyz}
+do_test printf-2.4.5.8 {
+  sqlite3_mprintf_double {abc: %d %d (%10.5e) :xyz} 10 5 100.0
+} {abc: 10 5 (1.00000e+02) :xyz}
+do_test printf-2.4.5.9 {
+  sqlite3_mprintf_double {abc: %d %d (%10.5g) :xyz} 10 5 100.0
+} {abc: 10 5 (       100) :xyz}
+do_test printf-2.4.6.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 10 5 9.99999
+} {abc: (   9.99999) :xyz}
+do_test printf-2.4.6.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 10 5 9.99999
+} {abc: (9.99999e+00) :xyz}
+do_test printf-2.4.6.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 10 5 9.99999
+} {abc: (        10) :xyz}
+do_test printf-2.4.6.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 10 5 9.99999
+} {abc: 10 5 (9.99999) :xyz}
+do_test printf-2.4.6.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 10 5 9.99999
+} {abc: 10 5 (9.99999) :xyz}
+do_test printf-2.4.6.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 10 5 9.99999
+} {abc: 10 5 (0009.99999) :xyz}
+do_test printf-2.4.6.7 {
+  sqlite3_mprintf_double {abc: %d %d (%10.5f) :xyz} 10 5 9.99999
+} {abc: 10 5 (   9.99999) :xyz}
+do_test printf-2.4.6.8 {
+  sqlite3_mprintf_double {abc: %d %d (%10.5e) :xyz} 10 5 9.99999
+} {abc: 10 5 (9.99999e+00) :xyz}
+do_test printf-2.4.6.9 {
+  sqlite3_mprintf_double {abc: %d %d (%10.5g) :xyz} 10 5 9.99999
+} {abc: 10 5 (        10) :xyz}
+do_test printf-2.4.7.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 10 5 -0.00543
+} {abc: (  -0.00543) :xyz}
+do_test printf-2.4.7.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 10 5 -0.00543
+} {abc: (-5.43000e-03) :xyz}
+do_test printf-2.4.7.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 10 5 -0.00543
+} {abc: (  -0.00543) :xyz}
+do_test printf-2.4.7.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 10 5 -0.00543
+} {abc: 10 5 (-0.00543) :xyz}
+do_test printf-2.4.7.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 10 5 -0.00543
+} {abc: 10 5 (-0.00543000) :xyz}
+do_test printf-2.4.7.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 10 5 -0.00543
+} {abc: 10 5 (-000.00543) :xyz}
+do_test printf-2.4.7.7 {
+  sqlite3_mprintf_double {abc: %d %d (%10.5f) :xyz} 10 5 -0.00543
+} {abc: 10 5 (  -0.00543) :xyz}
+do_test printf-2.4.7.8 {
+  sqlite3_mprintf_double {abc: %d %d (%10.5e) :xyz} 10 5 -0.00543
+} {abc: 10 5 (-5.43000e-03) :xyz}
+do_test printf-2.4.7.9 {
+  sqlite3_mprintf_double {abc: %d %d (%10.5g) :xyz} 10 5 -0.00543
+} {abc: 10 5 (  -0.00543) :xyz}
+do_test printf-2.4.8.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 10 5 -1.0
+} {abc: (  -1.00000) :xyz}
+do_test printf-2.4.8.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 10 5 -1.0
+} {abc: (-1.00000e+00) :xyz}
+do_test printf-2.4.8.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 10 5 -1.0
+} {abc: (        -1) :xyz}
+do_test printf-2.4.8.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 10 5 -1.0
+} {abc: 10 5 (-1) :xyz}
+do_test printf-2.4.8.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 10 5 -1.0
+} {abc: 10 5 (-1.00000) :xyz}
+do_test printf-2.4.8.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 10 5 -1.0
+} {abc: 10 5 (-000000001) :xyz}
+do_test printf-2.4.8.7 {
+  sqlite3_mprintf_double {abc: %d %d (%10.5f) :xyz} 10 5 -1.0
+} {abc: 10 5 (  -1.00000) :xyz}
+do_test printf-2.4.8.8 {
+  sqlite3_mprintf_double {abc: %d %d (%10.5e) :xyz} 10 5 -1.0
+} {abc: 10 5 (-1.00000e+00) :xyz}
+do_test printf-2.4.8.9 {
+  sqlite3_mprintf_double {abc: %d %d (%10.5g) :xyz} 10 5 -1.0
+} {abc: 10 5 (        -1) :xyz}
+do_test printf-2.4.9.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 10 5 -99.99999
+} {abc: ( -99.99999) :xyz}
+do_test printf-2.4.9.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 10 5 -99.99999
+} {abc: (-1.00000e+02) :xyz}
+do_test printf-2.4.9.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 10 5 -99.99999
+} {abc: (      -100) :xyz}
+do_test printf-2.4.9.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 10 5 -99.99999
+} {abc: 10 5 (-100) :xyz}
+do_test printf-2.4.9.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 10 5 -99.99999
+} {abc: 10 5 (-100.000) :xyz}
+do_test printf-2.4.9.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 10 5 -99.99999
+} {abc: 10 5 (-000000100) :xyz}
+do_test printf-2.4.9.7 {
+  sqlite3_mprintf_double {abc: %d %d (%10.5f) :xyz} 10 5 -99.99999
+} {abc: 10 5 ( -99.99999) :xyz}
+do_test printf-2.4.9.8 {
+  sqlite3_mprintf_double {abc: %d %d (%10.5e) :xyz} 10 5 -99.99999
+} {abc: 10 5 (-1.00000e+02) :xyz}
+do_test printf-2.4.9.9 {
+  sqlite3_mprintf_double {abc: %d %d (%10.5g) :xyz} 10 5 -99.99999
+} {abc: 10 5 (      -100) :xyz}
+do_test printf-2.4.10.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 10 5 3.14e+9
+} {abc: (3140000000.00000) :xyz}
+do_test printf-2.4.10.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 10 5 3.14e+9
+} {abc: (3.14000e+09) :xyz}
+do_test printf-2.4.10.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 10 5 3.14e+9
+} {abc: (  3.14e+09) :xyz}
+do_test printf-2.4.10.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 10 5 3.14e+9
+} {abc: 10 5 (3.14e+09) :xyz}
+do_test printf-2.4.10.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 10 5 3.14e+9
+} {abc: 10 5 (3.14000e+09) :xyz}
+do_test printf-2.4.10.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 10 5 3.14e+9
+} {abc: 10 5 (003.14e+09) :xyz}
+do_test printf-2.4.10.7 {
+  sqlite3_mprintf_double {abc: %d %d (%10.5f) :xyz} 10 5 3.14e+9
+} {abc: 10 5 (3140000000.00000) :xyz}
+do_test printf-2.4.10.8 {
+  sqlite3_mprintf_double {abc: %d %d (%10.5e) :xyz} 10 5 3.14e+9
+} {abc: 10 5 (3.14000e+09) :xyz}
+do_test printf-2.4.10.9 {
+  sqlite3_mprintf_double {abc: %d %d (%10.5g) :xyz} 10 5 3.14e+9
+} {abc: 10 5 (  3.14e+09) :xyz}
+do_test printf-2.4.11.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 10 5 -4.72732e+88
+} {abc: (-4.72732e+88) :xyz}
+do_test printf-2.4.11.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 10 5 -4.72732e+88
+} {abc: (-4.7273e+88) :xyz}
+do_test printf-2.4.11.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 10 5 -4.72732e+88
+} {abc: 10 5 (-4.72732e+88) :xyz}
+do_test printf-2.4.11.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 10 5 -4.72732e+88
+} {abc: 10 5 (-4.72732e+88) :xyz}
+do_test printf-2.4.11.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 10 5 -4.72732e+88
+} {abc: 10 5 (-4.72732e+88) :xyz}
+do_test printf-2.4.11.8 {
+  sqlite3_mprintf_double {abc: %d %d (%10.5e) :xyz} 10 5 -4.72732e+88
+} {abc: 10 5 (-4.72732e+88) :xyz}
+do_test printf-2.4.11.9 {
+  sqlite3_mprintf_double {abc: %d %d (%10.5g) :xyz} 10 5 -4.72732e+88
+} {abc: 10 5 (-4.7273e+88) :xyz}
+do_test printf-2.4.12.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 10 5 9.87991e+143
+} {abc: (9.87991e+143) :xyz}
+do_test printf-2.4.12.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 10 5 9.87991e+143
+} {abc: (9.8799e+143) :xyz}
+do_test printf-2.4.12.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 10 5 9.87991e+143
+} {abc: 10 5 (9.87991e+143) :xyz}
+do_test printf-2.4.12.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 10 5 9.87991e+143
+} {abc: 10 5 (9.87991e+143) :xyz}
+do_test printf-2.4.12.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 10 5 9.87991e+143
+} {abc: 10 5 (9.87991e+143) :xyz}
+do_test printf-2.4.12.8 {
+  sqlite3_mprintf_double {abc: %d %d (%10.5e) :xyz} 10 5 9.87991e+143
+} {abc: 10 5 (9.87991e+143) :xyz}
+do_test printf-2.4.12.9 {
+  sqlite3_mprintf_double {abc: %d %d (%10.5g) :xyz} 10 5 9.87991e+143
+} {abc: 10 5 (9.8799e+143) :xyz}
+do_test printf-2.4.13.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 10 5 -6.287291e-9
+} {abc: (  -0.00000) :xyz}
+do_test printf-2.4.13.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 10 5 -6.287291e-9
+} {abc: (-6.28729e-09) :xyz}
+do_test printf-2.4.13.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 10 5 -6.287291e-9
+} {abc: (-6.2873e-09) :xyz}
+do_test printf-2.4.13.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 10 5 -6.287291e-9
+} {abc: 10 5 (-6.28729e-09) :xyz}
+do_test printf-2.4.13.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 10 5 -6.287291e-9
+} {abc: 10 5 (-6.28729e-09) :xyz}
+do_test printf-2.4.13.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 10 5 -6.287291e-9
+} {abc: 10 5 (-6.28729e-09) :xyz}
+do_test printf-2.4.13.7 {
+  sqlite3_mprintf_double {abc: %d %d (%10.5f) :xyz} 10 5 -6.287291e-9
+} {abc: 10 5 (  -0.00000) :xyz}
+do_test printf-2.4.13.8 {
+  sqlite3_mprintf_double {abc: %d %d (%10.5e) :xyz} 10 5 -6.287291e-9
+} {abc: 10 5 (-6.28729e-09) :xyz}
+do_test printf-2.4.13.9 {
+  sqlite3_mprintf_double {abc: %d %d (%10.5g) :xyz} 10 5 -6.287291e-9
+} {abc: 10 5 (-6.2873e-09) :xyz}
+do_test printf-2.4.14.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 10 5 3.38826392e-110
+} {abc: (   0.00000) :xyz}
+do_test printf-2.4.14.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 10 5 3.38826392e-110
+} {abc: (3.38826e-110) :xyz}
+do_test printf-2.4.14.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 10 5 3.38826392e-110
+} {abc: (3.3883e-110) :xyz}
+do_test printf-2.4.14.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 10 5 3.38826392e-110
+} {abc: 10 5 (3.38826e-110) :xyz}
+do_test printf-2.4.14.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 10 5 3.38826392e-110
+} {abc: 10 5 (3.38826e-110) :xyz}
+do_test printf-2.4.14.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 10 5 3.38826392e-110
+} {abc: 10 5 (3.38826e-110) :xyz}
+do_test printf-2.4.14.7 {
+  sqlite3_mprintf_double {abc: %d %d (%10.5f) :xyz} 10 5 3.38826392e-110
+} {abc: 10 5 (   0.00000) :xyz}
+do_test printf-2.4.14.8 {
+  sqlite3_mprintf_double {abc: %d %d (%10.5e) :xyz} 10 5 3.38826392e-110
+} {abc: 10 5 (3.38826e-110) :xyz}
+do_test printf-2.4.14.9 {
+  sqlite3_mprintf_double {abc: %d %d (%10.5g) :xyz} 10 5 3.38826392e-110
+} {abc: 10 5 (3.3883e-110) :xyz}
+do_test printf-2.5.1.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 2 2 0.001
+} {abc: (0.00) :xyz}
+do_test printf-2.5.1.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 2 2 0.001
+} {abc: (1.00e-03) :xyz}
+do_test printf-2.5.1.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 2 2 0.001
+} {abc: (0.001) :xyz}
+do_test printf-2.5.1.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 2 2 0.001
+} {abc: 2 2 (0.001) :xyz}
+do_test printf-2.5.1.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 2 2 0.001
+} {abc: 2 2 (0.00100000) :xyz}
+do_test printf-2.5.1.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 2 2 0.001
+} {abc: 2 2 (000000.001) :xyz}
+do_test printf-2.5.1.7 {
+  sqlite3_mprintf_double {abc: %d %d (%2.2f) :xyz} 2 2 0.001
+} {abc: 2 2 (0.00) :xyz}
+do_test printf-2.5.1.8 {
+  sqlite3_mprintf_double {abc: %d %d (%2.2e) :xyz} 2 2 0.001
+} {abc: 2 2 (1.00e-03) :xyz}
+do_test printf-2.5.1.9 {
+  sqlite3_mprintf_double {abc: %d %d (%2.2g) :xyz} 2 2 0.001
+} {abc: 2 2 (0.001) :xyz}
+do_test printf-2.5.2.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 2 2 1.0e-20
+} {abc: (0.00) :xyz}
+do_test printf-2.5.2.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 2 2 1.0e-20
+} {abc: (1.00e-20) :xyz}
+do_test printf-2.5.2.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 2 2 1.0e-20
+} {abc: (1e-20) :xyz}
+do_test printf-2.5.2.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 2 2 1.0e-20
+} {abc: 2 2 (1e-20) :xyz}
+do_test printf-2.5.2.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 2 2 1.0e-20
+} {abc: 2 2 (1.00000e-20) :xyz}
+do_test printf-2.5.2.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 2 2 1.0e-20
+} {abc: 2 2 (000001e-20) :xyz}
+do_test printf-2.5.2.7 {
+  sqlite3_mprintf_double {abc: %d %d (%2.2f) :xyz} 2 2 1.0e-20
+} {abc: 2 2 (0.00) :xyz}
+do_test printf-2.5.2.8 {
+  sqlite3_mprintf_double {abc: %d %d (%2.2e) :xyz} 2 2 1.0e-20
+} {abc: 2 2 (1.00e-20) :xyz}
+do_test printf-2.5.2.9 {
+  sqlite3_mprintf_double {abc: %d %d (%2.2g) :xyz} 2 2 1.0e-20
+} {abc: 2 2 (1e-20) :xyz}
+do_test printf-2.5.3.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 2 2 1.0
+} {abc: (1.00) :xyz}
+do_test printf-2.5.3.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 2 2 1.0
+} {abc: (1.00e+00) :xyz}
+do_test printf-2.5.3.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 2 2 1.0
+} {abc: ( 1) :xyz}
+do_test printf-2.5.3.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 2 2 1.0
+} {abc: 2 2 (1) :xyz}
+do_test printf-2.5.3.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 2 2 1.0
+} {abc: 2 2 (1.00000) :xyz}
+do_test printf-2.5.3.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 2 2 1.0
+} {abc: 2 2 (0000000001) :xyz}
+do_test printf-2.5.3.7 {
+  sqlite3_mprintf_double {abc: %d %d (%2.2f) :xyz} 2 2 1.0
+} {abc: 2 2 (1.00) :xyz}
+do_test printf-2.5.3.8 {
+  sqlite3_mprintf_double {abc: %d %d (%2.2e) :xyz} 2 2 1.0
+} {abc: 2 2 (1.00e+00) :xyz}
+do_test printf-2.5.3.9 {
+  sqlite3_mprintf_double {abc: %d %d (%2.2g) :xyz} 2 2 1.0
+} {abc: 2 2 ( 1) :xyz}
+do_test printf-2.5.4.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 2 2 0.0
+} {abc: (0.00) :xyz}
+do_test printf-2.5.4.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 2 2 0.0
+} {abc: (0.00e+00) :xyz}
+do_test printf-2.5.4.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 2 2 0.0
+} {abc: ( 0) :xyz}
+do_test printf-2.5.4.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 2 2 0.0
+} {abc: 2 2 (0) :xyz}
+do_test printf-2.5.4.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 2 2 0.0
+} {abc: 2 2 (0.00000) :xyz}
+do_test printf-2.5.4.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 2 2 0.0
+} {abc: 2 2 (0000000000) :xyz}
+do_test printf-2.5.4.7 {
+  sqlite3_mprintf_double {abc: %d %d (%2.2f) :xyz} 2 2 0.0
+} {abc: 2 2 (0.00) :xyz}
+do_test printf-2.5.4.8 {
+  sqlite3_mprintf_double {abc: %d %d (%2.2e) :xyz} 2 2 0.0
+} {abc: 2 2 (0.00e+00) :xyz}
+do_test printf-2.5.4.9 {
+  sqlite3_mprintf_double {abc: %d %d (%2.2g) :xyz} 2 2 0.0
+} {abc: 2 2 ( 0) :xyz}
+do_test printf-2.5.5.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 2 2 100.0
+} {abc: (100.00) :xyz}
+do_test printf-2.5.5.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 2 2 100.0
+} {abc: (1.00e+02) :xyz}
+do_test printf-2.5.5.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 2 2 100.0
+} {abc: (1e+02) :xyz}
+do_test printf-2.5.5.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 2 2 100.0
+} {abc: 2 2 (100) :xyz}
+do_test printf-2.5.5.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 2 2 100.0
+} {abc: 2 2 (100.000) :xyz}
+do_test printf-2.5.5.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 2 2 100.0
+} {abc: 2 2 (0000000100) :xyz}
+do_test printf-2.5.5.7 {
+  sqlite3_mprintf_double {abc: %d %d (%2.2f) :xyz} 2 2 100.0
+} {abc: 2 2 (100.00) :xyz}
+do_test printf-2.5.5.8 {
+  sqlite3_mprintf_double {abc: %d %d (%2.2e) :xyz} 2 2 100.0
+} {abc: 2 2 (1.00e+02) :xyz}
+do_test printf-2.5.5.9 {
+  sqlite3_mprintf_double {abc: %d %d (%2.2g) :xyz} 2 2 100.0
+} {abc: 2 2 (1e+02) :xyz}
+do_test printf-2.5.6.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 2 2 9.99999
+} {abc: (10.00) :xyz}
+do_test printf-2.5.6.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 2 2 9.99999
+} {abc: (1.00e+01) :xyz}
+do_test printf-2.5.6.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 2 2 9.99999
+} {abc: (10) :xyz}
+do_test printf-2.5.6.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 2 2 9.99999
+} {abc: 2 2 (9.99999) :xyz}
+do_test printf-2.5.6.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 2 2 9.99999
+} {abc: 2 2 (9.99999) :xyz}
+do_test printf-2.5.6.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 2 2 9.99999
+} {abc: 2 2 (0009.99999) :xyz}
+do_test printf-2.5.6.7 {
+  sqlite3_mprintf_double {abc: %d %d (%2.2f) :xyz} 2 2 9.99999
+} {abc: 2 2 (10.00) :xyz}
+do_test printf-2.5.6.8 {
+  sqlite3_mprintf_double {abc: %d %d (%2.2e) :xyz} 2 2 9.99999
+} {abc: 2 2 (1.00e+01) :xyz}
+do_test printf-2.5.6.9 {
+  sqlite3_mprintf_double {abc: %d %d (%2.2g) :xyz} 2 2 9.99999
+} {abc: 2 2 (10) :xyz}
+do_test printf-2.5.7.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 2 2 -0.00543
+} {abc: (-0.01) :xyz}
+do_test printf-2.5.7.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 2 2 -0.00543
+} {abc: (-5.43e-03) :xyz}
+do_test printf-2.5.7.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 2 2 -0.00543
+} {abc: (-0.0054) :xyz}
+do_test printf-2.5.7.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 2 2 -0.00543
+} {abc: 2 2 (-0.00543) :xyz}
+do_test printf-2.5.7.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 2 2 -0.00543
+} {abc: 2 2 (-0.00543000) :xyz}
+do_test printf-2.5.7.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 2 2 -0.00543
+} {abc: 2 2 (-000.00543) :xyz}
+do_test printf-2.5.7.7 {
+  sqlite3_mprintf_double {abc: %d %d (%2.2f) :xyz} 2 2 -0.00543
+} {abc: 2 2 (-0.01) :xyz}
+do_test printf-2.5.7.8 {
+  sqlite3_mprintf_double {abc: %d %d (%2.2e) :xyz} 2 2 -0.00543
+} {abc: 2 2 (-5.43e-03) :xyz}
+do_test printf-2.5.7.9 {
+  sqlite3_mprintf_double {abc: %d %d (%2.2g) :xyz} 2 2 -0.00543
+} {abc: 2 2 (-0.0054) :xyz}
+do_test printf-2.5.8.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 2 2 -1.0
+} {abc: (-1.00) :xyz}
+do_test printf-2.5.8.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 2 2 -1.0
+} {abc: (-1.00e+00) :xyz}
+do_test printf-2.5.8.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 2 2 -1.0
+} {abc: (-1) :xyz}
+do_test printf-2.5.8.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 2 2 -1.0
+} {abc: 2 2 (-1) :xyz}
+do_test printf-2.5.8.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 2 2 -1.0
+} {abc: 2 2 (-1.00000) :xyz}
+do_test printf-2.5.8.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 2 2 -1.0
+} {abc: 2 2 (-000000001) :xyz}
+do_test printf-2.5.8.7 {
+  sqlite3_mprintf_double {abc: %d %d (%2.2f) :xyz} 2 2 -1.0
+} {abc: 2 2 (-1.00) :xyz}
+do_test printf-2.5.8.8 {
+  sqlite3_mprintf_double {abc: %d %d (%2.2e) :xyz} 2 2 -1.0
+} {abc: 2 2 (-1.00e+00) :xyz}
+do_test printf-2.5.8.9 {
+  sqlite3_mprintf_double {abc: %d %d (%2.2g) :xyz} 2 2 -1.0
+} {abc: 2 2 (-1) :xyz}
+do_test printf-2.5.9.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 2 2 -99.99999
+} {abc: (-100.00) :xyz}
+do_test printf-2.5.9.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 2 2 -99.99999
+} {abc: (-1.00e+02) :xyz}
+do_test printf-2.5.9.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 2 2 -99.99999
+} {abc: (-1e+02) :xyz}
+do_test printf-2.5.9.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 2 2 -99.99999
+} {abc: 2 2 (-100) :xyz}
+do_test printf-2.5.9.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 2 2 -99.99999
+} {abc: 2 2 (-100.000) :xyz}
+do_test printf-2.5.9.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 2 2 -99.99999
+} {abc: 2 2 (-000000100) :xyz}
+do_test printf-2.5.9.7 {
+  sqlite3_mprintf_double {abc: %d %d (%2.2f) :xyz} 2 2 -99.99999
+} {abc: 2 2 (-100.00) :xyz}
+do_test printf-2.5.9.8 {
+  sqlite3_mprintf_double {abc: %d %d (%2.2e) :xyz} 2 2 -99.99999
+} {abc: 2 2 (-1.00e+02) :xyz}
+do_test printf-2.5.9.9 {
+  sqlite3_mprintf_double {abc: %d %d (%2.2g) :xyz} 2 2 -99.99999
+} {abc: 2 2 (-1e+02) :xyz}
+do_test printf-2.5.10.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 2 2 3.14e+9
+} {abc: (3140000000.00) :xyz}
+do_test printf-2.5.10.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 2 2 3.14e+9
+} {abc: (3.14e+09) :xyz}
+do_test printf-2.5.10.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 2 2 3.14e+9
+} {abc: (3.1e+09) :xyz}
+do_test printf-2.5.10.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 2 2 3.14e+9
+} {abc: 2 2 (3.14e+09) :xyz}
+do_test printf-2.5.10.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 2 2 3.14e+9
+} {abc: 2 2 (3.14000e+09) :xyz}
+do_test printf-2.5.10.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 2 2 3.14e+9
+} {abc: 2 2 (003.14e+09) :xyz}
+do_test printf-2.5.10.7 {
+  sqlite3_mprintf_double {abc: %d %d (%2.2f) :xyz} 2 2 3.14e+9
+} {abc: 2 2 (3140000000.00) :xyz}
+do_test printf-2.5.10.8 {
+  sqlite3_mprintf_double {abc: %d %d (%2.2e) :xyz} 2 2 3.14e+9
+} {abc: 2 2 (3.14e+09) :xyz}
+do_test printf-2.5.10.9 {
+  sqlite3_mprintf_double {abc: %d %d (%2.2g) :xyz} 2 2 3.14e+9
+} {abc: 2 2 (3.1e+09) :xyz}
+do_test printf-2.5.11.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 2 2 -4.72732e+88
+} {abc: (-4.73e+88) :xyz}
+do_test printf-2.5.11.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 2 2 -4.72732e+88
+} {abc: (-4.7e+88) :xyz}
+do_test printf-2.5.11.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 2 2 -4.72732e+88
+} {abc: 2 2 (-4.72732e+88) :xyz}
+do_test printf-2.5.11.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 2 2 -4.72732e+88
+} {abc: 2 2 (-4.72732e+88) :xyz}
+do_test printf-2.5.11.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 2 2 -4.72732e+88
+} {abc: 2 2 (-4.72732e+88) :xyz}
+do_test printf-2.5.11.8 {
+  sqlite3_mprintf_double {abc: %d %d (%2.2e) :xyz} 2 2 -4.72732e+88
+} {abc: 2 2 (-4.73e+88) :xyz}
+do_test printf-2.5.11.9 {
+  sqlite3_mprintf_double {abc: %d %d (%2.2g) :xyz} 2 2 -4.72732e+88
+} {abc: 2 2 (-4.7e+88) :xyz}
+do_test printf-2.5.12.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 2 2 9.87991e+143
+} {abc: (9.88e+143) :xyz}
+do_test printf-2.5.12.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 2 2 9.87991e+143
+} {abc: (9.9e+143) :xyz}
+do_test printf-2.5.12.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 2 2 9.87991e+143
+} {abc: 2 2 (9.87991e+143) :xyz}
+do_test printf-2.5.12.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 2 2 9.87991e+143
+} {abc: 2 2 (9.87991e+143) :xyz}
+do_test printf-2.5.12.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 2 2 9.87991e+143
+} {abc: 2 2 (9.87991e+143) :xyz}
+do_test printf-2.5.12.8 {
+  sqlite3_mprintf_double {abc: %d %d (%2.2e) :xyz} 2 2 9.87991e+143
+} {abc: 2 2 (9.88e+143) :xyz}
+do_test printf-2.5.12.9 {
+  sqlite3_mprintf_double {abc: %d %d (%2.2g) :xyz} 2 2 9.87991e+143
+} {abc: 2 2 (9.9e+143) :xyz}
+do_test printf-2.5.13.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 2 2 -6.287291e-9
+} {abc: (-0.00) :xyz}
+do_test printf-2.5.13.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 2 2 -6.287291e-9
+} {abc: (-6.29e-09) :xyz}
+do_test printf-2.5.13.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 2 2 -6.287291e-9
+} {abc: (-6.3e-09) :xyz}
+do_test printf-2.5.13.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 2 2 -6.287291e-9
+} {abc: 2 2 (-6.28729e-09) :xyz}
+do_test printf-2.5.13.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 2 2 -6.287291e-9
+} {abc: 2 2 (-6.28729e-09) :xyz}
+do_test printf-2.5.13.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 2 2 -6.287291e-9
+} {abc: 2 2 (-6.28729e-09) :xyz}
+do_test printf-2.5.13.7 {
+  sqlite3_mprintf_double {abc: %d %d (%2.2f) :xyz} 2 2 -6.287291e-9
+} {abc: 2 2 (-0.00) :xyz}
+do_test printf-2.5.13.8 {
+  sqlite3_mprintf_double {abc: %d %d (%2.2e) :xyz} 2 2 -6.287291e-9
+} {abc: 2 2 (-6.29e-09) :xyz}
+do_test printf-2.5.13.9 {
+  sqlite3_mprintf_double {abc: %d %d (%2.2g) :xyz} 2 2 -6.287291e-9
+} {abc: 2 2 (-6.3e-09) :xyz}
+do_test printf-2.5.14.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 2 2 3.38826392e-110
+} {abc: (0.00) :xyz}
+do_test printf-2.5.14.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 2 2 3.38826392e-110
+} {abc: (3.39e-110) :xyz}
+do_test printf-2.5.14.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 2 2 3.38826392e-110
+} {abc: (3.4e-110) :xyz}
+do_test printf-2.5.14.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 2 2 3.38826392e-110
+} {abc: 2 2 (3.38826e-110) :xyz}
+do_test printf-2.5.14.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 2 2 3.38826392e-110
+} {abc: 2 2 (3.38826e-110) :xyz}
+do_test printf-2.5.14.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 2 2 3.38826392e-110
+} {abc: 2 2 (3.38826e-110) :xyz}
+do_test printf-2.5.14.7 {
+  sqlite3_mprintf_double {abc: %d %d (%2.2f) :xyz} 2 2 3.38826392e-110
+} {abc: 2 2 (0.00) :xyz}
+do_test printf-2.5.14.8 {
+  sqlite3_mprintf_double {abc: %d %d (%2.2e) :xyz} 2 2 3.38826392e-110
+} {abc: 2 2 (3.39e-110) :xyz}
+do_test printf-2.5.14.9 {
+  sqlite3_mprintf_double {abc: %d %d (%2.2g) :xyz} 2 2 3.38826392e-110
+} {abc: 2 2 (3.4e-110) :xyz}
+do_test printf-2.6.1.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 2 3 0.001
+} {abc: (0.001) :xyz}
+do_test printf-2.6.1.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 2 3 0.001
+} {abc: (1.000e-03) :xyz}
+do_test printf-2.6.1.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 2 3 0.001
+} {abc: (0.001) :xyz}
+do_test printf-2.6.1.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 2 3 0.001
+} {abc: 2 3 (0.001) :xyz}
+do_test printf-2.6.1.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 2 3 0.001
+} {abc: 2 3 (0.00100000) :xyz}
+do_test printf-2.6.1.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 2 3 0.001
+} {abc: 2 3 (000000.001) :xyz}
+do_test printf-2.6.1.7 {
+  sqlite3_mprintf_double {abc: %d %d (%2.3f) :xyz} 2 3 0.001
+} {abc: 2 3 (0.001) :xyz}
+do_test printf-2.6.1.8 {
+  sqlite3_mprintf_double {abc: %d %d (%2.3e) :xyz} 2 3 0.001
+} {abc: 2 3 (1.000e-03) :xyz}
+do_test printf-2.6.1.9 {
+  sqlite3_mprintf_double {abc: %d %d (%2.3g) :xyz} 2 3 0.001
+} {abc: 2 3 (0.001) :xyz}
+do_test printf-2.6.2.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 2 3 1.0e-20
+} {abc: (0.000) :xyz}
+do_test printf-2.6.2.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 2 3 1.0e-20
+} {abc: (1.000e-20) :xyz}
+do_test printf-2.6.2.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 2 3 1.0e-20
+} {abc: (1e-20) :xyz}
+do_test printf-2.6.2.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 2 3 1.0e-20
+} {abc: 2 3 (1e-20) :xyz}
+do_test printf-2.6.2.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 2 3 1.0e-20
+} {abc: 2 3 (1.00000e-20) :xyz}
+do_test printf-2.6.2.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 2 3 1.0e-20
+} {abc: 2 3 (000001e-20) :xyz}
+do_test printf-2.6.2.7 {
+  sqlite3_mprintf_double {abc: %d %d (%2.3f) :xyz} 2 3 1.0e-20
+} {abc: 2 3 (0.000) :xyz}
+do_test printf-2.6.2.8 {
+  sqlite3_mprintf_double {abc: %d %d (%2.3e) :xyz} 2 3 1.0e-20
+} {abc: 2 3 (1.000e-20) :xyz}
+do_test printf-2.6.2.9 {
+  sqlite3_mprintf_double {abc: %d %d (%2.3g) :xyz} 2 3 1.0e-20
+} {abc: 2 3 (1e-20) :xyz}
+do_test printf-2.6.3.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 2 3 1.0
+} {abc: (1.000) :xyz}
+do_test printf-2.6.3.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 2 3 1.0
+} {abc: (1.000e+00) :xyz}
+do_test printf-2.6.3.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 2 3 1.0
+} {abc: ( 1) :xyz}
+do_test printf-2.6.3.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 2 3 1.0
+} {abc: 2 3 (1) :xyz}
+do_test printf-2.6.3.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 2 3 1.0
+} {abc: 2 3 (1.00000) :xyz}
+do_test printf-2.6.3.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 2 3 1.0
+} {abc: 2 3 (0000000001) :xyz}
+do_test printf-2.6.3.7 {
+  sqlite3_mprintf_double {abc: %d %d (%2.3f) :xyz} 2 3 1.0
+} {abc: 2 3 (1.000) :xyz}
+do_test printf-2.6.3.8 {
+  sqlite3_mprintf_double {abc: %d %d (%2.3e) :xyz} 2 3 1.0
+} {abc: 2 3 (1.000e+00) :xyz}
+do_test printf-2.6.3.9 {
+  sqlite3_mprintf_double {abc: %d %d (%2.3g) :xyz} 2 3 1.0
+} {abc: 2 3 ( 1) :xyz}
+do_test printf-2.6.4.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 2 3 0.0
+} {abc: (0.000) :xyz}
+do_test printf-2.6.4.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 2 3 0.0
+} {abc: (0.000e+00) :xyz}
+do_test printf-2.6.4.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 2 3 0.0
+} {abc: ( 0) :xyz}
+do_test printf-2.6.4.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 2 3 0.0
+} {abc: 2 3 (0) :xyz}
+do_test printf-2.6.4.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 2 3 0.0
+} {abc: 2 3 (0.00000) :xyz}
+do_test printf-2.6.4.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 2 3 0.0
+} {abc: 2 3 (0000000000) :xyz}
+do_test printf-2.6.4.7 {
+  sqlite3_mprintf_double {abc: %d %d (%2.3f) :xyz} 2 3 0.0
+} {abc: 2 3 (0.000) :xyz}
+do_test printf-2.6.4.8 {
+  sqlite3_mprintf_double {abc: %d %d (%2.3e) :xyz} 2 3 0.0
+} {abc: 2 3 (0.000e+00) :xyz}
+do_test printf-2.6.4.9 {
+  sqlite3_mprintf_double {abc: %d %d (%2.3g) :xyz} 2 3 0.0
+} {abc: 2 3 ( 0) :xyz}
+do_test printf-2.6.5.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 2 3 100.0
+} {abc: (100.000) :xyz}
+do_test printf-2.6.5.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 2 3 100.0
+} {abc: (1.000e+02) :xyz}
+do_test printf-2.6.5.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 2 3 100.0
+} {abc: (100) :xyz}
+do_test printf-2.6.5.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 2 3 100.0
+} {abc: 2 3 (100) :xyz}
+do_test printf-2.6.5.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 2 3 100.0
+} {abc: 2 3 (100.000) :xyz}
+do_test printf-2.6.5.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 2 3 100.0
+} {abc: 2 3 (0000000100) :xyz}
+do_test printf-2.6.5.7 {
+  sqlite3_mprintf_double {abc: %d %d (%2.3f) :xyz} 2 3 100.0
+} {abc: 2 3 (100.000) :xyz}
+do_test printf-2.6.5.8 {
+  sqlite3_mprintf_double {abc: %d %d (%2.3e) :xyz} 2 3 100.0
+} {abc: 2 3 (1.000e+02) :xyz}
+do_test printf-2.6.5.9 {
+  sqlite3_mprintf_double {abc: %d %d (%2.3g) :xyz} 2 3 100.0
+} {abc: 2 3 (100) :xyz}
+do_test printf-2.6.6.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 2 3 9.99999
+} {abc: (10.000) :xyz}
+do_test printf-2.6.6.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 2 3 9.99999
+} {abc: (1.000e+01) :xyz}
+do_test printf-2.6.6.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 2 3 9.99999
+} {abc: (10) :xyz}
+do_test printf-2.6.6.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 2 3 9.99999
+} {abc: 2 3 (9.99999) :xyz}
+do_test printf-2.6.6.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 2 3 9.99999
+} {abc: 2 3 (9.99999) :xyz}
+do_test printf-2.6.6.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 2 3 9.99999
+} {abc: 2 3 (0009.99999) :xyz}
+do_test printf-2.6.6.7 {
+  sqlite3_mprintf_double {abc: %d %d (%2.3f) :xyz} 2 3 9.99999
+} {abc: 2 3 (10.000) :xyz}
+do_test printf-2.6.6.8 {
+  sqlite3_mprintf_double {abc: %d %d (%2.3e) :xyz} 2 3 9.99999
+} {abc: 2 3 (1.000e+01) :xyz}
+do_test printf-2.6.6.9 {
+  sqlite3_mprintf_double {abc: %d %d (%2.3g) :xyz} 2 3 9.99999
+} {abc: 2 3 (10) :xyz}
+do_test printf-2.6.7.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 2 3 -0.00543
+} {abc: (-0.005) :xyz}
+do_test printf-2.6.7.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 2 3 -0.00543
+} {abc: (-5.430e-03) :xyz}
+do_test printf-2.6.7.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 2 3 -0.00543
+} {abc: (-0.00543) :xyz}
+do_test printf-2.6.7.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 2 3 -0.00543
+} {abc: 2 3 (-0.00543) :xyz}
+do_test printf-2.6.7.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 2 3 -0.00543
+} {abc: 2 3 (-0.00543000) :xyz}
+do_test printf-2.6.7.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 2 3 -0.00543
+} {abc: 2 3 (-000.00543) :xyz}
+do_test printf-2.6.7.7 {
+  sqlite3_mprintf_double {abc: %d %d (%2.3f) :xyz} 2 3 -0.00543
+} {abc: 2 3 (-0.005) :xyz}
+do_test printf-2.6.7.8 {
+  sqlite3_mprintf_double {abc: %d %d (%2.3e) :xyz} 2 3 -0.00543
+} {abc: 2 3 (-5.430e-03) :xyz}
+do_test printf-2.6.7.9 {
+  sqlite3_mprintf_double {abc: %d %d (%2.3g) :xyz} 2 3 -0.00543
+} {abc: 2 3 (-0.00543) :xyz}
+do_test printf-2.6.8.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 2 3 -1.0
+} {abc: (-1.000) :xyz}
+do_test printf-2.6.8.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 2 3 -1.0
+} {abc: (-1.000e+00) :xyz}
+do_test printf-2.6.8.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 2 3 -1.0
+} {abc: (-1) :xyz}
+do_test printf-2.6.8.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 2 3 -1.0
+} {abc: 2 3 (-1) :xyz}
+do_test printf-2.6.8.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 2 3 -1.0
+} {abc: 2 3 (-1.00000) :xyz}
+do_test printf-2.6.8.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 2 3 -1.0
+} {abc: 2 3 (-000000001) :xyz}
+do_test printf-2.6.8.7 {
+  sqlite3_mprintf_double {abc: %d %d (%2.3f) :xyz} 2 3 -1.0
+} {abc: 2 3 (-1.000) :xyz}
+do_test printf-2.6.8.8 {
+  sqlite3_mprintf_double {abc: %d %d (%2.3e) :xyz} 2 3 -1.0
+} {abc: 2 3 (-1.000e+00) :xyz}
+do_test printf-2.6.8.9 {
+  sqlite3_mprintf_double {abc: %d %d (%2.3g) :xyz} 2 3 -1.0
+} {abc: 2 3 (-1) :xyz}
+do_test printf-2.6.9.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 2 3 -99.99999
+} {abc: (-100.000) :xyz}
+do_test printf-2.6.9.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 2 3 -99.99999
+} {abc: (-1.000e+02) :xyz}
+do_test printf-2.6.9.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 2 3 -99.99999
+} {abc: (-100) :xyz}
+do_test printf-2.6.9.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 2 3 -99.99999
+} {abc: 2 3 (-100) :xyz}
+do_test printf-2.6.9.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 2 3 -99.99999
+} {abc: 2 3 (-100.000) :xyz}
+do_test printf-2.6.9.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 2 3 -99.99999
+} {abc: 2 3 (-000000100) :xyz}
+do_test printf-2.6.9.7 {
+  sqlite3_mprintf_double {abc: %d %d (%2.3f) :xyz} 2 3 -99.99999
+} {abc: 2 3 (-100.000) :xyz}
+do_test printf-2.6.9.8 {
+  sqlite3_mprintf_double {abc: %d %d (%2.3e) :xyz} 2 3 -99.99999
+} {abc: 2 3 (-1.000e+02) :xyz}
+do_test printf-2.6.9.9 {
+  sqlite3_mprintf_double {abc: %d %d (%2.3g) :xyz} 2 3 -99.99999
+} {abc: 2 3 (-100) :xyz}
+do_test printf-2.6.10.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 2 3 3.14e+9
+} {abc: (3140000000.000) :xyz}
+do_test printf-2.6.10.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 2 3 3.14e+9
+} {abc: (3.140e+09) :xyz}
+do_test printf-2.6.10.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 2 3 3.14e+9
+} {abc: (3.14e+09) :xyz}
+do_test printf-2.6.10.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 2 3 3.14e+9
+} {abc: 2 3 (3.14e+09) :xyz}
+do_test printf-2.6.10.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 2 3 3.14e+9
+} {abc: 2 3 (3.14000e+09) :xyz}
+do_test printf-2.6.10.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 2 3 3.14e+9
+} {abc: 2 3 (003.14e+09) :xyz}
+do_test printf-2.6.10.7 {
+  sqlite3_mprintf_double {abc: %d %d (%2.3f) :xyz} 2 3 3.14e+9
+} {abc: 2 3 (3140000000.000) :xyz}
+do_test printf-2.6.10.8 {
+  sqlite3_mprintf_double {abc: %d %d (%2.3e) :xyz} 2 3 3.14e+9
+} {abc: 2 3 (3.140e+09) :xyz}
+do_test printf-2.6.10.9 {
+  sqlite3_mprintf_double {abc: %d %d (%2.3g) :xyz} 2 3 3.14e+9
+} {abc: 2 3 (3.14e+09) :xyz}
+do_test printf-2.6.11.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 2 3 -4.72732e+88
+} {abc: (-4.727e+88) :xyz}
+do_test printf-2.6.11.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 2 3 -4.72732e+88
+} {abc: (-4.73e+88) :xyz}
+do_test printf-2.6.11.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 2 3 -4.72732e+88
+} {abc: 2 3 (-4.72732e+88) :xyz}
+do_test printf-2.6.11.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 2 3 -4.72732e+88
+} {abc: 2 3 (-4.72732e+88) :xyz}
+do_test printf-2.6.11.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 2 3 -4.72732e+88
+} {abc: 2 3 (-4.72732e+88) :xyz}
+do_test printf-2.6.11.8 {
+  sqlite3_mprintf_double {abc: %d %d (%2.3e) :xyz} 2 3 -4.72732e+88
+} {abc: 2 3 (-4.727e+88) :xyz}
+do_test printf-2.6.11.9 {
+  sqlite3_mprintf_double {abc: %d %d (%2.3g) :xyz} 2 3 -4.72732e+88
+} {abc: 2 3 (-4.73e+88) :xyz}
+do_test printf-2.6.12.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 2 3 9.87991e+143
+} {abc: (9.880e+143) :xyz}
+do_test printf-2.6.12.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 2 3 9.87991e+143
+} {abc: (9.88e+143) :xyz}
+do_test printf-2.6.12.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 2 3 9.87991e+143
+} {abc: 2 3 (9.87991e+143) :xyz}
+do_test printf-2.6.12.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 2 3 9.87991e+143
+} {abc: 2 3 (9.87991e+143) :xyz}
+do_test printf-2.6.12.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 2 3 9.87991e+143
+} {abc: 2 3 (9.87991e+143) :xyz}
+do_test printf-2.6.12.8 {
+  sqlite3_mprintf_double {abc: %d %d (%2.3e) :xyz} 2 3 9.87991e+143
+} {abc: 2 3 (9.880e+143) :xyz}
+do_test printf-2.6.12.9 {
+  sqlite3_mprintf_double {abc: %d %d (%2.3g) :xyz} 2 3 9.87991e+143
+} {abc: 2 3 (9.88e+143) :xyz}
+do_test printf-2.6.13.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 2 3 -6.287291e-9
+} {abc: (-0.000) :xyz}
+do_test printf-2.6.13.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 2 3 -6.287291e-9
+} {abc: (-6.287e-09) :xyz}
+do_test printf-2.6.13.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 2 3 -6.287291e-9
+} {abc: (-6.29e-09) :xyz}
+do_test printf-2.6.13.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 2 3 -6.287291e-9
+} {abc: 2 3 (-6.28729e-09) :xyz}
+do_test printf-2.6.13.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 2 3 -6.287291e-9
+} {abc: 2 3 (-6.28729e-09) :xyz}
+do_test printf-2.6.13.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 2 3 -6.287291e-9
+} {abc: 2 3 (-6.28729e-09) :xyz}
+do_test printf-2.6.13.7 {
+  sqlite3_mprintf_double {abc: %d %d (%2.3f) :xyz} 2 3 -6.287291e-9
+} {abc: 2 3 (-0.000) :xyz}
+do_test printf-2.6.13.8 {
+  sqlite3_mprintf_double {abc: %d %d (%2.3e) :xyz} 2 3 -6.287291e-9
+} {abc: 2 3 (-6.287e-09) :xyz}
+do_test printf-2.6.13.9 {
+  sqlite3_mprintf_double {abc: %d %d (%2.3g) :xyz} 2 3 -6.287291e-9
+} {abc: 2 3 (-6.29e-09) :xyz}
+do_test printf-2.6.14.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 2 3 3.38826392e-110
+} {abc: (0.000) :xyz}
+do_test printf-2.6.14.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 2 3 3.38826392e-110
+} {abc: (3.388e-110) :xyz}
+do_test printf-2.6.14.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 2 3 3.38826392e-110
+} {abc: (3.39e-110) :xyz}
+do_test printf-2.6.14.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 2 3 3.38826392e-110
+} {abc: 2 3 (3.38826e-110) :xyz}
+do_test printf-2.6.14.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 2 3 3.38826392e-110
+} {abc: 2 3 (3.38826e-110) :xyz}
+do_test printf-2.6.14.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 2 3 3.38826392e-110
+} {abc: 2 3 (3.38826e-110) :xyz}
+do_test printf-2.6.14.7 {
+  sqlite3_mprintf_double {abc: %d %d (%2.3f) :xyz} 2 3 3.38826392e-110
+} {abc: 2 3 (0.000) :xyz}
+do_test printf-2.6.14.8 {
+  sqlite3_mprintf_double {abc: %d %d (%2.3e) :xyz} 2 3 3.38826392e-110
+} {abc: 2 3 (3.388e-110) :xyz}
+do_test printf-2.6.14.9 {
+  sqlite3_mprintf_double {abc: %d %d (%2.3g) :xyz} 2 3 3.38826392e-110
+} {abc: 2 3 (3.39e-110) :xyz}
+do_test printf-2.7.1.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 3 3 0.001
+} {abc: (0.001) :xyz}
+do_test printf-2.7.1.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 3 3 0.001
+} {abc: (1.000e-03) :xyz}
+do_test printf-2.7.1.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 3 3 0.001
+} {abc: (0.001) :xyz}
+do_test printf-2.7.1.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 3 3 0.001
+} {abc: 3 3 (0.001) :xyz}
+do_test printf-2.7.1.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 3 3 0.001
+} {abc: 3 3 (0.00100000) :xyz}
+do_test printf-2.7.1.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 3 3 0.001
+} {abc: 3 3 (000000.001) :xyz}
+do_test printf-2.7.1.7 {
+  sqlite3_mprintf_double {abc: %d %d (%3.3f) :xyz} 3 3 0.001
+} {abc: 3 3 (0.001) :xyz}
+do_test printf-2.7.1.8 {
+  sqlite3_mprintf_double {abc: %d %d (%3.3e) :xyz} 3 3 0.001
+} {abc: 3 3 (1.000e-03) :xyz}
+do_test printf-2.7.1.9 {
+  sqlite3_mprintf_double {abc: %d %d (%3.3g) :xyz} 3 3 0.001
+} {abc: 3 3 (0.001) :xyz}
+do_test printf-2.7.2.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 3 3 1.0e-20
+} {abc: (0.000) :xyz}
+do_test printf-2.7.2.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 3 3 1.0e-20
+} {abc: (1.000e-20) :xyz}
+do_test printf-2.7.2.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 3 3 1.0e-20
+} {abc: (1e-20) :xyz}
+do_test printf-2.7.2.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 3 3 1.0e-20
+} {abc: 3 3 (1e-20) :xyz}
+do_test printf-2.7.2.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 3 3 1.0e-20
+} {abc: 3 3 (1.00000e-20) :xyz}
+do_test printf-2.7.2.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 3 3 1.0e-20
+} {abc: 3 3 (000001e-20) :xyz}
+do_test printf-2.7.2.7 {
+  sqlite3_mprintf_double {abc: %d %d (%3.3f) :xyz} 3 3 1.0e-20
+} {abc: 3 3 (0.000) :xyz}
+do_test printf-2.7.2.8 {
+  sqlite3_mprintf_double {abc: %d %d (%3.3e) :xyz} 3 3 1.0e-20
+} {abc: 3 3 (1.000e-20) :xyz}
+do_test printf-2.7.2.9 {
+  sqlite3_mprintf_double {abc: %d %d (%3.3g) :xyz} 3 3 1.0e-20
+} {abc: 3 3 (1e-20) :xyz}
+do_test printf-2.7.3.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 3 3 1.0
+} {abc: (1.000) :xyz}
+do_test printf-2.7.3.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 3 3 1.0
+} {abc: (1.000e+00) :xyz}
+do_test printf-2.7.3.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 3 3 1.0
+} {abc: (  1) :xyz}
+do_test printf-2.7.3.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 3 3 1.0
+} {abc: 3 3 (1) :xyz}
+do_test printf-2.7.3.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 3 3 1.0
+} {abc: 3 3 (1.00000) :xyz}
+do_test printf-2.7.3.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 3 3 1.0
+} {abc: 3 3 (0000000001) :xyz}
+do_test printf-2.7.3.7 {
+  sqlite3_mprintf_double {abc: %d %d (%3.3f) :xyz} 3 3 1.0
+} {abc: 3 3 (1.000) :xyz}
+do_test printf-2.7.3.8 {
+  sqlite3_mprintf_double {abc: %d %d (%3.3e) :xyz} 3 3 1.0
+} {abc: 3 3 (1.000e+00) :xyz}
+do_test printf-2.7.3.9 {
+  sqlite3_mprintf_double {abc: %d %d (%3.3g) :xyz} 3 3 1.0
+} {abc: 3 3 (  1) :xyz}
+do_test printf-2.7.4.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 3 3 0.0
+} {abc: (0.000) :xyz}
+do_test printf-2.7.4.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 3 3 0.0
+} {abc: (0.000e+00) :xyz}
+do_test printf-2.7.4.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 3 3 0.0
+} {abc: (  0) :xyz}
+do_test printf-2.7.4.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 3 3 0.0
+} {abc: 3 3 (0) :xyz}
+do_test printf-2.7.4.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 3 3 0.0
+} {abc: 3 3 (0.00000) :xyz}
+do_test printf-2.7.4.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 3 3 0.0
+} {abc: 3 3 (0000000000) :xyz}
+do_test printf-2.7.4.7 {
+  sqlite3_mprintf_double {abc: %d %d (%3.3f) :xyz} 3 3 0.0
+} {abc: 3 3 (0.000) :xyz}
+do_test printf-2.7.4.8 {
+  sqlite3_mprintf_double {abc: %d %d (%3.3e) :xyz} 3 3 0.0
+} {abc: 3 3 (0.000e+00) :xyz}
+do_test printf-2.7.4.9 {
+  sqlite3_mprintf_double {abc: %d %d (%3.3g) :xyz} 3 3 0.0
+} {abc: 3 3 (  0) :xyz}
+do_test printf-2.7.5.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 3 3 100.0
+} {abc: (100.000) :xyz}
+do_test printf-2.7.5.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 3 3 100.0
+} {abc: (1.000e+02) :xyz}
+do_test printf-2.7.5.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 3 3 100.0
+} {abc: (100) :xyz}
+do_test printf-2.7.5.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 3 3 100.0
+} {abc: 3 3 (100) :xyz}
+do_test printf-2.7.5.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 3 3 100.0
+} {abc: 3 3 (100.000) :xyz}
+do_test printf-2.7.5.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 3 3 100.0
+} {abc: 3 3 (0000000100) :xyz}
+do_test printf-2.7.5.7 {
+  sqlite3_mprintf_double {abc: %d %d (%3.3f) :xyz} 3 3 100.0
+} {abc: 3 3 (100.000) :xyz}
+do_test printf-2.7.5.8 {
+  sqlite3_mprintf_double {abc: %d %d (%3.3e) :xyz} 3 3 100.0
+} {abc: 3 3 (1.000e+02) :xyz}
+do_test printf-2.7.5.9 {
+  sqlite3_mprintf_double {abc: %d %d (%3.3g) :xyz} 3 3 100.0
+} {abc: 3 3 (100) :xyz}
+do_test printf-2.7.6.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 3 3 9.99999
+} {abc: (10.000) :xyz}
+do_test printf-2.7.6.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 3 3 9.99999
+} {abc: (1.000e+01) :xyz}
+do_test printf-2.7.6.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 3 3 9.99999
+} {abc: ( 10) :xyz}
+do_test printf-2.7.6.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 3 3 9.99999
+} {abc: 3 3 (9.99999) :xyz}
+do_test printf-2.7.6.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 3 3 9.99999
+} {abc: 3 3 (9.99999) :xyz}
+do_test printf-2.7.6.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 3 3 9.99999
+} {abc: 3 3 (0009.99999) :xyz}
+do_test printf-2.7.6.7 {
+  sqlite3_mprintf_double {abc: %d %d (%3.3f) :xyz} 3 3 9.99999
+} {abc: 3 3 (10.000) :xyz}
+do_test printf-2.7.6.8 {
+  sqlite3_mprintf_double {abc: %d %d (%3.3e) :xyz} 3 3 9.99999
+} {abc: 3 3 (1.000e+01) :xyz}
+do_test printf-2.7.6.9 {
+  sqlite3_mprintf_double {abc: %d %d (%3.3g) :xyz} 3 3 9.99999
+} {abc: 3 3 ( 10) :xyz}
+do_test printf-2.7.7.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 3 3 -0.00543
+} {abc: (-0.005) :xyz}
+do_test printf-2.7.7.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 3 3 -0.00543
+} {abc: (-5.430e-03) :xyz}
+do_test printf-2.7.7.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 3 3 -0.00543
+} {abc: (-0.00543) :xyz}
+do_test printf-2.7.7.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 3 3 -0.00543
+} {abc: 3 3 (-0.00543) :xyz}
+do_test printf-2.7.7.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 3 3 -0.00543
+} {abc: 3 3 (-0.00543000) :xyz}
+do_test printf-2.7.7.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 3 3 -0.00543
+} {abc: 3 3 (-000.00543) :xyz}
+do_test printf-2.7.7.7 {
+  sqlite3_mprintf_double {abc: %d %d (%3.3f) :xyz} 3 3 -0.00543
+} {abc: 3 3 (-0.005) :xyz}
+do_test printf-2.7.7.8 {
+  sqlite3_mprintf_double {abc: %d %d (%3.3e) :xyz} 3 3 -0.00543
+} {abc: 3 3 (-5.430e-03) :xyz}
+do_test printf-2.7.7.9 {
+  sqlite3_mprintf_double {abc: %d %d (%3.3g) :xyz} 3 3 -0.00543
+} {abc: 3 3 (-0.00543) :xyz}
+do_test printf-2.7.8.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 3 3 -1.0
+} {abc: (-1.000) :xyz}
+do_test printf-2.7.8.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 3 3 -1.0
+} {abc: (-1.000e+00) :xyz}
+do_test printf-2.7.8.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 3 3 -1.0
+} {abc: ( -1) :xyz}
+do_test printf-2.7.8.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 3 3 -1.0
+} {abc: 3 3 (-1) :xyz}
+do_test printf-2.7.8.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 3 3 -1.0
+} {abc: 3 3 (-1.00000) :xyz}
+do_test printf-2.7.8.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 3 3 -1.0
+} {abc: 3 3 (-000000001) :xyz}
+do_test printf-2.7.8.7 {
+  sqlite3_mprintf_double {abc: %d %d (%3.3f) :xyz} 3 3 -1.0
+} {abc: 3 3 (-1.000) :xyz}
+do_test printf-2.7.8.8 {
+  sqlite3_mprintf_double {abc: %d %d (%3.3e) :xyz} 3 3 -1.0
+} {abc: 3 3 (-1.000e+00) :xyz}
+do_test printf-2.7.8.9 {
+  sqlite3_mprintf_double {abc: %d %d (%3.3g) :xyz} 3 3 -1.0
+} {abc: 3 3 ( -1) :xyz}
+do_test printf-2.7.9.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 3 3 -99.99999
+} {abc: (-100.000) :xyz}
+do_test printf-2.7.9.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 3 3 -99.99999
+} {abc: (-1.000e+02) :xyz}
+do_test printf-2.7.9.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 3 3 -99.99999
+} {abc: (-100) :xyz}
+do_test printf-2.7.9.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 3 3 -99.99999
+} {abc: 3 3 (-100) :xyz}
+do_test printf-2.7.9.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 3 3 -99.99999
+} {abc: 3 3 (-100.000) :xyz}
+do_test printf-2.7.9.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 3 3 -99.99999
+} {abc: 3 3 (-000000100) :xyz}
+do_test printf-2.7.9.7 {
+  sqlite3_mprintf_double {abc: %d %d (%3.3f) :xyz} 3 3 -99.99999
+} {abc: 3 3 (-100.000) :xyz}
+do_test printf-2.7.9.8 {
+  sqlite3_mprintf_double {abc: %d %d (%3.3e) :xyz} 3 3 -99.99999
+} {abc: 3 3 (-1.000e+02) :xyz}
+do_test printf-2.7.9.9 {
+  sqlite3_mprintf_double {abc: %d %d (%3.3g) :xyz} 3 3 -99.99999
+} {abc: 3 3 (-100) :xyz}
+do_test printf-2.7.10.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 3 3 3.14e+9
+} {abc: (3140000000.000) :xyz}
+do_test printf-2.7.10.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 3 3 3.14e+9
+} {abc: (3.140e+09) :xyz}
+do_test printf-2.7.10.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 3 3 3.14e+9
+} {abc: (3.14e+09) :xyz}
+do_test printf-2.7.10.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 3 3 3.14e+9
+} {abc: 3 3 (3.14e+09) :xyz}
+do_test printf-2.7.10.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 3 3 3.14e+9
+} {abc: 3 3 (3.14000e+09) :xyz}
+do_test printf-2.7.10.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 3 3 3.14e+9
+} {abc: 3 3 (003.14e+09) :xyz}
+do_test printf-2.7.10.7 {
+  sqlite3_mprintf_double {abc: %d %d (%3.3f) :xyz} 3 3 3.14e+9
+} {abc: 3 3 (3140000000.000) :xyz}
+do_test printf-2.7.10.8 {
+  sqlite3_mprintf_double {abc: %d %d (%3.3e) :xyz} 3 3 3.14e+9
+} {abc: 3 3 (3.140e+09) :xyz}
+do_test printf-2.7.10.9 {
+  sqlite3_mprintf_double {abc: %d %d (%3.3g) :xyz} 3 3 3.14e+9
+} {abc: 3 3 (3.14e+09) :xyz}
+do_test printf-2.7.11.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 3 3 -4.72732e+88
+} {abc: (-4.727e+88) :xyz}
+do_test printf-2.7.11.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 3 3 -4.72732e+88
+} {abc: (-4.73e+88) :xyz}
+do_test printf-2.7.11.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 3 3 -4.72732e+88
+} {abc: 3 3 (-4.72732e+88) :xyz}
+do_test printf-2.7.11.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 3 3 -4.72732e+88
+} {abc: 3 3 (-4.72732e+88) :xyz}
+do_test printf-2.7.11.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 3 3 -4.72732e+88
+} {abc: 3 3 (-4.72732e+88) :xyz}
+do_test printf-2.7.11.8 {
+  sqlite3_mprintf_double {abc: %d %d (%3.3e) :xyz} 3 3 -4.72732e+88
+} {abc: 3 3 (-4.727e+88) :xyz}
+do_test printf-2.7.11.9 {
+  sqlite3_mprintf_double {abc: %d %d (%3.3g) :xyz} 3 3 -4.72732e+88
+} {abc: 3 3 (-4.73e+88) :xyz}
+do_test printf-2.7.12.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 3 3 9.87991e+143
+} {abc: (9.880e+143) :xyz}
+do_test printf-2.7.12.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 3 3 9.87991e+143
+} {abc: (9.88e+143) :xyz}
+do_test printf-2.7.12.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 3 3 9.87991e+143
+} {abc: 3 3 (9.87991e+143) :xyz}
+do_test printf-2.7.12.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 3 3 9.87991e+143
+} {abc: 3 3 (9.87991e+143) :xyz}
+do_test printf-2.7.12.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 3 3 9.87991e+143
+} {abc: 3 3 (9.87991e+143) :xyz}
+do_test printf-2.7.12.8 {
+  sqlite3_mprintf_double {abc: %d %d (%3.3e) :xyz} 3 3 9.87991e+143
+} {abc: 3 3 (9.880e+143) :xyz}
+do_test printf-2.7.12.9 {
+  sqlite3_mprintf_double {abc: %d %d (%3.3g) :xyz} 3 3 9.87991e+143
+} {abc: 3 3 (9.88e+143) :xyz}
+do_test printf-2.7.13.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 3 3 -6.287291e-9
+} {abc: (-0.000) :xyz}
+do_test printf-2.7.13.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 3 3 -6.287291e-9
+} {abc: (-6.287e-09) :xyz}
+do_test printf-2.7.13.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 3 3 -6.287291e-9
+} {abc: (-6.29e-09) :xyz}
+do_test printf-2.7.13.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 3 3 -6.287291e-9
+} {abc: 3 3 (-6.28729e-09) :xyz}
+do_test printf-2.7.13.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 3 3 -6.287291e-9
+} {abc: 3 3 (-6.28729e-09) :xyz}
+do_test printf-2.7.13.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 3 3 -6.287291e-9
+} {abc: 3 3 (-6.28729e-09) :xyz}
+do_test printf-2.7.13.7 {
+  sqlite3_mprintf_double {abc: %d %d (%3.3f) :xyz} 3 3 -6.287291e-9
+} {abc: 3 3 (-0.000) :xyz}
+do_test printf-2.7.13.8 {
+  sqlite3_mprintf_double {abc: %d %d (%3.3e) :xyz} 3 3 -6.287291e-9
+} {abc: 3 3 (-6.287e-09) :xyz}
+do_test printf-2.7.13.9 {
+  sqlite3_mprintf_double {abc: %d %d (%3.3g) :xyz} 3 3 -6.287291e-9
+} {abc: 3 3 (-6.29e-09) :xyz}
+do_test printf-2.7.14.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 3 3 3.38826392e-110
+} {abc: (0.000) :xyz}
+do_test printf-2.7.14.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 3 3 3.38826392e-110
+} {abc: (3.388e-110) :xyz}
+do_test printf-2.7.14.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 3 3 3.38826392e-110
+} {abc: (3.39e-110) :xyz}
+do_test printf-2.7.14.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 3 3 3.38826392e-110
+} {abc: 3 3 (3.38826e-110) :xyz}
+do_test printf-2.7.14.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 3 3 3.38826392e-110
+} {abc: 3 3 (3.38826e-110) :xyz}
+do_test printf-2.7.14.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 3 3 3.38826392e-110
+} {abc: 3 3 (3.38826e-110) :xyz}
+do_test printf-2.7.14.7 {
+  sqlite3_mprintf_double {abc: %d %d (%3.3f) :xyz} 3 3 3.38826392e-110
+} {abc: 3 3 (0.000) :xyz}
+do_test printf-2.7.14.8 {
+  sqlite3_mprintf_double {abc: %d %d (%3.3e) :xyz} 3 3 3.38826392e-110
+} {abc: 3 3 (3.388e-110) :xyz}
+do_test printf-2.7.14.9 {
+  sqlite3_mprintf_double {abc: %d %d (%3.3g) :xyz} 3 3 3.38826392e-110
+} {abc: 3 3 (3.39e-110) :xyz}
+do_test printf-2.8.1.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 3 2 0.001
+} {abc: (0.00) :xyz}
+do_test printf-2.8.1.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 3 2 0.001
+} {abc: (1.00e-03) :xyz}
+do_test printf-2.8.1.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 3 2 0.001
+} {abc: (0.001) :xyz}
+do_test printf-2.8.1.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 3 2 0.001
+} {abc: 3 2 (0.001) :xyz}
+do_test printf-2.8.1.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 3 2 0.001
+} {abc: 3 2 (0.00100000) :xyz}
+do_test printf-2.8.1.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 3 2 0.001
+} {abc: 3 2 (000000.001) :xyz}
+do_test printf-2.8.1.7 {
+  sqlite3_mprintf_double {abc: %d %d (%3.2f) :xyz} 3 2 0.001
+} {abc: 3 2 (0.00) :xyz}
+do_test printf-2.8.1.8 {
+  sqlite3_mprintf_double {abc: %d %d (%3.2e) :xyz} 3 2 0.001
+} {abc: 3 2 (1.00e-03) :xyz}
+do_test printf-2.8.1.9 {
+  sqlite3_mprintf_double {abc: %d %d (%3.2g) :xyz} 3 2 0.001
+} {abc: 3 2 (0.001) :xyz}
+do_test printf-2.8.2.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 3 2 1.0e-20
+} {abc: (0.00) :xyz}
+do_test printf-2.8.2.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 3 2 1.0e-20
+} {abc: (1.00e-20) :xyz}
+do_test printf-2.8.2.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 3 2 1.0e-20
+} {abc: (1e-20) :xyz}
+do_test printf-2.8.2.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 3 2 1.0e-20
+} {abc: 3 2 (1e-20) :xyz}
+do_test printf-2.8.2.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 3 2 1.0e-20
+} {abc: 3 2 (1.00000e-20) :xyz}
+do_test printf-2.8.2.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 3 2 1.0e-20
+} {abc: 3 2 (000001e-20) :xyz}
+do_test printf-2.8.2.7 {
+  sqlite3_mprintf_double {abc: %d %d (%3.2f) :xyz} 3 2 1.0e-20
+} {abc: 3 2 (0.00) :xyz}
+do_test printf-2.8.2.8 {
+  sqlite3_mprintf_double {abc: %d %d (%3.2e) :xyz} 3 2 1.0e-20
+} {abc: 3 2 (1.00e-20) :xyz}
+do_test printf-2.8.2.9 {
+  sqlite3_mprintf_double {abc: %d %d (%3.2g) :xyz} 3 2 1.0e-20
+} {abc: 3 2 (1e-20) :xyz}
+do_test printf-2.8.3.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 3 2 1.0
+} {abc: (1.00) :xyz}
+do_test printf-2.8.3.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 3 2 1.0
+} {abc: (1.00e+00) :xyz}
+do_test printf-2.8.3.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 3 2 1.0
+} {abc: (  1) :xyz}
+do_test printf-2.8.3.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 3 2 1.0
+} {abc: 3 2 (1) :xyz}
+do_test printf-2.8.3.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 3 2 1.0
+} {abc: 3 2 (1.00000) :xyz}
+do_test printf-2.8.3.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 3 2 1.0
+} {abc: 3 2 (0000000001) :xyz}
+do_test printf-2.8.3.7 {
+  sqlite3_mprintf_double {abc: %d %d (%3.2f) :xyz} 3 2 1.0
+} {abc: 3 2 (1.00) :xyz}
+do_test printf-2.8.3.8 {
+  sqlite3_mprintf_double {abc: %d %d (%3.2e) :xyz} 3 2 1.0
+} {abc: 3 2 (1.00e+00) :xyz}
+do_test printf-2.8.3.9 {
+  sqlite3_mprintf_double {abc: %d %d (%3.2g) :xyz} 3 2 1.0
+} {abc: 3 2 (  1) :xyz}
+do_test printf-2.8.4.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 3 2 0.0
+} {abc: (0.00) :xyz}
+do_test printf-2.8.4.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 3 2 0.0
+} {abc: (0.00e+00) :xyz}
+do_test printf-2.8.4.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 3 2 0.0
+} {abc: (  0) :xyz}
+do_test printf-2.8.4.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 3 2 0.0
+} {abc: 3 2 (0) :xyz}
+do_test printf-2.8.4.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 3 2 0.0
+} {abc: 3 2 (0.00000) :xyz}
+do_test printf-2.8.4.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 3 2 0.0
+} {abc: 3 2 (0000000000) :xyz}
+do_test printf-2.8.4.7 {
+  sqlite3_mprintf_double {abc: %d %d (%3.2f) :xyz} 3 2 0.0
+} {abc: 3 2 (0.00) :xyz}
+do_test printf-2.8.4.8 {
+  sqlite3_mprintf_double {abc: %d %d (%3.2e) :xyz} 3 2 0.0
+} {abc: 3 2 (0.00e+00) :xyz}
+do_test printf-2.8.4.9 {
+  sqlite3_mprintf_double {abc: %d %d (%3.2g) :xyz} 3 2 0.0
+} {abc: 3 2 (  0) :xyz}
+do_test printf-2.8.5.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 3 2 100.0
+} {abc: (100.00) :xyz}
+do_test printf-2.8.5.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 3 2 100.0
+} {abc: (1.00e+02) :xyz}
+do_test printf-2.8.5.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 3 2 100.0
+} {abc: (1e+02) :xyz}
+do_test printf-2.8.5.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 3 2 100.0
+} {abc: 3 2 (100) :xyz}
+do_test printf-2.8.5.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 3 2 100.0
+} {abc: 3 2 (100.000) :xyz}
+do_test printf-2.8.5.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 3 2 100.0
+} {abc: 3 2 (0000000100) :xyz}
+do_test printf-2.8.5.7 {
+  sqlite3_mprintf_double {abc: %d %d (%3.2f) :xyz} 3 2 100.0
+} {abc: 3 2 (100.00) :xyz}
+do_test printf-2.8.5.8 {
+  sqlite3_mprintf_double {abc: %d %d (%3.2e) :xyz} 3 2 100.0
+} {abc: 3 2 (1.00e+02) :xyz}
+do_test printf-2.8.5.9 {
+  sqlite3_mprintf_double {abc: %d %d (%3.2g) :xyz} 3 2 100.0
+} {abc: 3 2 (1e+02) :xyz}
+do_test printf-2.8.6.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 3 2 9.99999
+} {abc: (10.00) :xyz}
+do_test printf-2.8.6.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 3 2 9.99999
+} {abc: (1.00e+01) :xyz}
+do_test printf-2.8.6.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 3 2 9.99999
+} {abc: ( 10) :xyz}
+do_test printf-2.8.6.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 3 2 9.99999
+} {abc: 3 2 (9.99999) :xyz}
+do_test printf-2.8.6.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 3 2 9.99999
+} {abc: 3 2 (9.99999) :xyz}
+do_test printf-2.8.6.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 3 2 9.99999
+} {abc: 3 2 (0009.99999) :xyz}
+do_test printf-2.8.6.7 {
+  sqlite3_mprintf_double {abc: %d %d (%3.2f) :xyz} 3 2 9.99999
+} {abc: 3 2 (10.00) :xyz}
+do_test printf-2.8.6.8 {
+  sqlite3_mprintf_double {abc: %d %d (%3.2e) :xyz} 3 2 9.99999
+} {abc: 3 2 (1.00e+01) :xyz}
+do_test printf-2.8.6.9 {
+  sqlite3_mprintf_double {abc: %d %d (%3.2g) :xyz} 3 2 9.99999
+} {abc: 3 2 ( 10) :xyz}
+do_test printf-2.8.7.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 3 2 -0.00543
+} {abc: (-0.01) :xyz}
+do_test printf-2.8.7.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 3 2 -0.00543
+} {abc: (-5.43e-03) :xyz}
+do_test printf-2.8.7.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 3 2 -0.00543
+} {abc: (-0.0054) :xyz}
+do_test printf-2.8.7.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 3 2 -0.00543
+} {abc: 3 2 (-0.00543) :xyz}
+do_test printf-2.8.7.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 3 2 -0.00543
+} {abc: 3 2 (-0.00543000) :xyz}
+do_test printf-2.8.7.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 3 2 -0.00543
+} {abc: 3 2 (-000.00543) :xyz}
+do_test printf-2.8.7.7 {
+  sqlite3_mprintf_double {abc: %d %d (%3.2f) :xyz} 3 2 -0.00543
+} {abc: 3 2 (-0.01) :xyz}
+do_test printf-2.8.7.8 {
+  sqlite3_mprintf_double {abc: %d %d (%3.2e) :xyz} 3 2 -0.00543
+} {abc: 3 2 (-5.43e-03) :xyz}
+do_test printf-2.8.7.9 {
+  sqlite3_mprintf_double {abc: %d %d (%3.2g) :xyz} 3 2 -0.00543
+} {abc: 3 2 (-0.0054) :xyz}
+do_test printf-2.8.8.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 3 2 -1.0
+} {abc: (-1.00) :xyz}
+do_test printf-2.8.8.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 3 2 -1.0
+} {abc: (-1.00e+00) :xyz}
+do_test printf-2.8.8.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 3 2 -1.0
+} {abc: ( -1) :xyz}
+do_test printf-2.8.8.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 3 2 -1.0
+} {abc: 3 2 (-1) :xyz}
+do_test printf-2.8.8.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 3 2 -1.0
+} {abc: 3 2 (-1.00000) :xyz}
+do_test printf-2.8.8.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 3 2 -1.0
+} {abc: 3 2 (-000000001) :xyz}
+do_test printf-2.8.8.7 {
+  sqlite3_mprintf_double {abc: %d %d (%3.2f) :xyz} 3 2 -1.0
+} {abc: 3 2 (-1.00) :xyz}
+do_test printf-2.8.8.8 {
+  sqlite3_mprintf_double {abc: %d %d (%3.2e) :xyz} 3 2 -1.0
+} {abc: 3 2 (-1.00e+00) :xyz}
+do_test printf-2.8.8.9 {
+  sqlite3_mprintf_double {abc: %d %d (%3.2g) :xyz} 3 2 -1.0
+} {abc: 3 2 ( -1) :xyz}
+do_test printf-2.8.9.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 3 2 -99.99999
+} {abc: (-100.00) :xyz}
+do_test printf-2.8.9.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 3 2 -99.99999
+} {abc: (-1.00e+02) :xyz}
+do_test printf-2.8.9.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 3 2 -99.99999
+} {abc: (-1e+02) :xyz}
+do_test printf-2.8.9.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 3 2 -99.99999
+} {abc: 3 2 (-100) :xyz}
+do_test printf-2.8.9.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 3 2 -99.99999
+} {abc: 3 2 (-100.000) :xyz}
+do_test printf-2.8.9.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 3 2 -99.99999
+} {abc: 3 2 (-000000100) :xyz}
+do_test printf-2.8.9.7 {
+  sqlite3_mprintf_double {abc: %d %d (%3.2f) :xyz} 3 2 -99.99999
+} {abc: 3 2 (-100.00) :xyz}
+do_test printf-2.8.9.8 {
+  sqlite3_mprintf_double {abc: %d %d (%3.2e) :xyz} 3 2 -99.99999
+} {abc: 3 2 (-1.00e+02) :xyz}
+do_test printf-2.8.9.9 {
+  sqlite3_mprintf_double {abc: %d %d (%3.2g) :xyz} 3 2 -99.99999
+} {abc: 3 2 (-1e+02) :xyz}
+do_test printf-2.8.10.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 3 2 3.14e+9
+} {abc: (3140000000.00) :xyz}
+do_test printf-2.8.10.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 3 2 3.14e+9
+} {abc: (3.14e+09) :xyz}
+do_test printf-2.8.10.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 3 2 3.14e+9
+} {abc: (3.1e+09) :xyz}
+do_test printf-2.8.10.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 3 2 3.14e+9
+} {abc: 3 2 (3.14e+09) :xyz}
+do_test printf-2.8.10.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 3 2 3.14e+9
+} {abc: 3 2 (3.14000e+09) :xyz}
+do_test printf-2.8.10.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 3 2 3.14e+9
+} {abc: 3 2 (003.14e+09) :xyz}
+do_test printf-2.8.10.7 {
+  sqlite3_mprintf_double {abc: %d %d (%3.2f) :xyz} 3 2 3.14e+9
+} {abc: 3 2 (3140000000.00) :xyz}
+do_test printf-2.8.10.8 {
+  sqlite3_mprintf_double {abc: %d %d (%3.2e) :xyz} 3 2 3.14e+9
+} {abc: 3 2 (3.14e+09) :xyz}
+do_test printf-2.8.10.9 {
+  sqlite3_mprintf_double {abc: %d %d (%3.2g) :xyz} 3 2 3.14e+9
+} {abc: 3 2 (3.1e+09) :xyz}
+do_test printf-2.8.11.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 3 2 -4.72732e+88
+} {abc: (-4.73e+88) :xyz}
+do_test printf-2.8.11.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 3 2 -4.72732e+88
+} {abc: (-4.7e+88) :xyz}
+do_test printf-2.8.11.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 3 2 -4.72732e+88
+} {abc: 3 2 (-4.72732e+88) :xyz}
+do_test printf-2.8.11.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 3 2 -4.72732e+88
+} {abc: 3 2 (-4.72732e+88) :xyz}
+do_test printf-2.8.11.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 3 2 -4.72732e+88
+} {abc: 3 2 (-4.72732e+88) :xyz}
+do_test printf-2.8.11.8 {
+  sqlite3_mprintf_double {abc: %d %d (%3.2e) :xyz} 3 2 -4.72732e+88
+} {abc: 3 2 (-4.73e+88) :xyz}
+do_test printf-2.8.11.9 {
+  sqlite3_mprintf_double {abc: %d %d (%3.2g) :xyz} 3 2 -4.72732e+88
+} {abc: 3 2 (-4.7e+88) :xyz}
+do_test printf-2.8.12.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 3 2 9.87991e+143
+} {abc: (9.88e+143) :xyz}
+do_test printf-2.8.12.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 3 2 9.87991e+143
+} {abc: (9.9e+143) :xyz}
+do_test printf-2.8.12.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 3 2 9.87991e+143
+} {abc: 3 2 (9.87991e+143) :xyz}
+do_test printf-2.8.12.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 3 2 9.87991e+143
+} {abc: 3 2 (9.87991e+143) :xyz}
+do_test printf-2.8.12.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 3 2 9.87991e+143
+} {abc: 3 2 (9.87991e+143) :xyz}
+do_test printf-2.8.12.8 {
+  sqlite3_mprintf_double {abc: %d %d (%3.2e) :xyz} 3 2 9.87991e+143
+} {abc: 3 2 (9.88e+143) :xyz}
+do_test printf-2.8.12.9 {
+  sqlite3_mprintf_double {abc: %d %d (%3.2g) :xyz} 3 2 9.87991e+143
+} {abc: 3 2 (9.9e+143) :xyz}
+do_test printf-2.8.13.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 3 2 -6.287291e-9
+} {abc: (-0.00) :xyz}
+do_test printf-2.8.13.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 3 2 -6.287291e-9
+} {abc: (-6.29e-09) :xyz}
+do_test printf-2.8.13.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 3 2 -6.287291e-9
+} {abc: (-6.3e-09) :xyz}
+do_test printf-2.8.13.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 3 2 -6.287291e-9
+} {abc: 3 2 (-6.28729e-09) :xyz}
+do_test printf-2.8.13.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 3 2 -6.287291e-9
+} {abc: 3 2 (-6.28729e-09) :xyz}
+do_test printf-2.8.13.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 3 2 -6.287291e-9
+} {abc: 3 2 (-6.28729e-09) :xyz}
+do_test printf-2.8.13.7 {
+  sqlite3_mprintf_double {abc: %d %d (%3.2f) :xyz} 3 2 -6.287291e-9
+} {abc: 3 2 (-0.00) :xyz}
+do_test printf-2.8.13.8 {
+  sqlite3_mprintf_double {abc: %d %d (%3.2e) :xyz} 3 2 -6.287291e-9
+} {abc: 3 2 (-6.29e-09) :xyz}
+do_test printf-2.8.13.9 {
+  sqlite3_mprintf_double {abc: %d %d (%3.2g) :xyz} 3 2 -6.287291e-9
+} {abc: 3 2 (-6.3e-09) :xyz}
+do_test printf-2.8.14.1 {
+  sqlite3_mprintf_double {abc: (%*.*f) :xyz} 3 2 3.38826392e-110
+} {abc: (0.00) :xyz}
+do_test printf-2.8.14.2 {
+  sqlite3_mprintf_double {abc: (%*.*e) :xyz} 3 2 3.38826392e-110
+} {abc: (3.39e-110) :xyz}
+do_test printf-2.8.14.3 {
+  sqlite3_mprintf_double {abc: (%*.*g) :xyz} 3 2 3.38826392e-110
+} {abc: (3.4e-110) :xyz}
+do_test printf-2.8.14.4 {
+  sqlite3_mprintf_double {abc: %d %d (%g) :xyz} 3 2 3.38826392e-110
+} {abc: 3 2 (3.38826e-110) :xyz}
+do_test printf-2.8.14.5 {
+  sqlite3_mprintf_double {abc: %d %d (%#g) :xyz} 3 2 3.38826392e-110
+} {abc: 3 2 (3.38826e-110) :xyz}
+do_test printf-2.8.14.6 {
+  sqlite3_mprintf_double {abc: %d %d (%010g) :xyz} 3 2 3.38826392e-110
+} {abc: 3 2 (3.38826e-110) :xyz}
+do_test printf-2.8.14.7 {
+  sqlite3_mprintf_double {abc: %d %d (%3.2f) :xyz} 3 2 3.38826392e-110
+} {abc: 3 2 (0.00) :xyz}
+do_test printf-2.8.14.8 {
+  sqlite3_mprintf_double {abc: %d %d (%3.2e) :xyz} 3 2 3.38826392e-110
+} {abc: 3 2 (3.39e-110) :xyz}
+do_test printf-2.8.14.9 {
+  sqlite3_mprintf_double {abc: %d %d (%3.2g) :xyz} 3 2 3.38826392e-110
+} {abc: 3 2 (3.4e-110) :xyz}
+do_test printf-2.8.15.1 {
+  sqlite3_mprintf_double {abc: (% *.*f) :xyz} 3 2 3.38826392e-110
+} {abc: ( 0.00) :xyz}
+do_test printf-2.8.15.2 {
+  sqlite3_mprintf_double {abc: (% *.*e) :xyz} 3 2 3.38826392e-110
+} {abc: ( 3.39e-110) :xyz}
+do_test printf-2.8.15.3 {
+  sqlite3_mprintf_double {abc: (% *.*g) :xyz} 3 2 3.38826392e-110
+} {abc: ( 3.4e-110) :xyz}
+do_test printf-2.8.15.4 {
+  sqlite3_mprintf_double {abc: %d %d (% g) :xyz} 3 2 3.38826392e-110
+} {abc: 3 2 ( 3.38826e-110) :xyz}
+do_test printf-2.8.15.5 {
+  sqlite3_mprintf_double {abc: %d %d (% #g) :xyz} 3 2 3.38826392e-110
+} {abc: 3 2 ( 3.38826e-110) :xyz}
+do_test printf-2.8.15.6 {
+  sqlite3_mprintf_double {abc: %d %d (%0 10g) :xyz} 3 2 3.38826392e-110
+} {abc: 3 2 ( 3.38826e-110) :xyz}
+do_test printf-2.8.15.7 {
+  sqlite3_mprintf_double {abc: %d %d (% 3.2f) :xyz} 3 2 3.38826392e-110
+} {abc: 3 2 ( 0.00) :xyz}
+do_test printf-2.8.15.8 {
+  sqlite3_mprintf_double {abc: %d %d (% 3.2e) :xyz} 3 2 3.38826392e-110
+} {abc: 3 2 ( 3.39e-110) :xyz}
+do_test printf-2.8.15.9 {
+  sqlite3_mprintf_double {abc: %d %d (% 3.2g) :xyz} 3 2 3.38826392e-110
+} {abc: 3 2 ( 3.4e-110) :xyz}
+
+do_test printf-2.9.1 {
+  sqlite3_mprintf_double {abc: %d %d (%5.0g) :xyz} 0 0 1.234
+} {abc: 0 0 (    1) :xyz}
+do_test printf-2.9.2 {
+  sqlite3_mprintf_double {abc: %d %d (%+5.0g) :xyz} 0 0 1.234
+} {abc: 0 0 (   +1) :xyz}
+do_test printf-2.9.3 {
+  sqlite3_mprintf_double {abc: %d %d (%+-5.0g) :xyz} 0 0 1.234
+} {abc: 0 0 (+1   ) :xyz}
+
+do_test printf-2.10.1 {
+  sqlite3_mprintf_double {abc: %d %d (%-010.5f) :xyz} 0 0 1.234
+} {abc: 0 0 (1.23400   ) :xyz}
+do_test printf-2.10.2 {
+  sqlite3_mprintf_double {abc: %d %d (%010.5f) :xyz} 0 0 1.234
+} {abc: 0 0 (0001.23400) :xyz}
+do_test printf-2.10.3 {
+  sqlite3_mprintf_double {abc: %d %d (%+010.5f) :xyz} 0 0 1.234
+} {abc: 0 0 (+001.23400) :xyz}
+
+do_test printf-3.1 {
+  sqlite3_mprintf_str {A String: (%*.*s)} 10 10 {This is the string}
+} [format {A String: (%*.*s)} 10 10 {This is the string}]
+do_test printf-3.2 {
+  sqlite3_mprintf_str {A String: (%*.*s)} 10 5 {This is the string}
+} [format {A String: (%*.*s)} 10 5 {This is the string}]
+do_test printf-3.3 {
+  sqlite3_mprintf_str {A String: (%*.*s)} -10 5 {This is the string}
+} [format {A String: (%*.*s)} -10 5 {This is the string}]
+do_test printf-3.4 {
+  sqlite3_mprintf_str {%d %d A String: (%s)} 1 2 {This is the string}
+} [format {%d %d A String: (%s)} 1 2 {This is the string}]
+do_test printf-3.5 {
+  sqlite3_mprintf_str {%d %d A String: (%30s)} 1 2 {This is the string}
+} [format {%d %d A String: (%30s)} 1 2 {This is the string}]
+do_test printf-3.6 {
+  sqlite3_mprintf_str {%d %d A String: (%-30s)} 1 2 {This is the string}
+} [format {%d %d A String: (%-30s)} 1 2 {This is the string}]
+do_test printf-3.7 {
+  sqlite3_mprintf_str {%d A String: (%*s)} 1 2147483647 {This is the string}
+} []
+do_test printf-3.8 {
+  sqlite3_mprintf_str {%d A String: (%*s)} 1 -2147483648 {This is the string}
+} {1 A String: (This is the string)}
+do_test printf-3.9 {
+  sqlite3_mprintf_str {%d A String: (%.*s)} 1 -2147483648 {This is the string}
+} {1 A String: (This is the string)}
+do_test snprintf-3.11 {
+  sqlite3_snprintf_str 2 {x%d %d %s} 10 10 {This is the string}
+} {x}
+do_test snprintf-3.12 {
+  sqlite3_snprintf_str 3 {x%d %d %s} 10 10 {This is the string}
+} {x1}
+do_test snprintf-3.13 {
+  sqlite3_snprintf_str 4 {x%d %d %s} 10 10 {This is the string}
+} {x10}
+do_test snprintf-3.14 {
+  sqlite3_snprintf_str 5 {x%d %d %s} 10 10 {This is the string}
+} {x10 }
+do_test snprintf-3.15 {
+  sqlite3_snprintf_str 6 {x%d %d %s} 10 10 {This is the string}
+} {x10 1}
+do_test snprintf-3.16 {
+  sqlite3_snprintf_str 7 {x%d %d %s} 10 10 {This is the string}
+} {x10 10}
+do_test snprintf-3.17 {
+  sqlite3_snprintf_str 8 {x%d %d %s} 10 10 {This is the string}
+} {x10 10 }
+do_test snprintf-3.18 {
+  sqlite3_snprintf_str 9 {x%d %d %s} 10 10 {This is the string}
+} {x10 10 T}
+do_test snprintf-3.19 {
+  sqlite3_snprintf_str 100 {x%d %d %s} 10 10 {This is the string}
+} {x10 10 This is the string}
+
+do_test printf-4.1 {
+  sqlite3_mprintf_str {%d %d A quoted string: '%q'} 1 2 {Hi Y'all}
+} {1 2 A quoted string: 'Hi Y''all'}
+do_test printf-4.2 {
+  sqlite3_mprintf_str {%d %d A NULL pointer in %%q: '%q'} 1 2
+} {1 2 A NULL pointer in %q: '(NULL)'}
+do_test printf-4.3 {
+  sqlite3_mprintf_str {%d %d A quoted string: %Q} 1 2 {Hi Y'all}
+} {1 2 A quoted string: 'Hi Y''all'}
+do_test printf-4.4 {
+  sqlite3_mprintf_str {%d %d A NULL pointer in %%Q: %Q} 1 2
+} {1 2 A NULL pointer in %Q: NULL}
+do_test printf-4.5 {
+  sqlite3_mprintf_str {%d %d A quoted string: '%.10q'} 1 2 {Hi Y'all}
+} {1 2 A quoted string: 'Hi Y''all'}
+do_test printf-4.6 {
+  sqlite3_mprintf_str {%d %d A quoted string: '%.9q'} 1 2 {Hi Y'all}
+} {1 2 A quoted string: 'Hi Y''all'}
+do_test printf-4.7 {
+  sqlite3_mprintf_str {%d %d A quoted string: '%.8q'} 1 2 {Hi Y'all}
+} {1 2 A quoted string: 'Hi Y''all'}
+do_test printf-4.8 {
+  sqlite3_mprintf_str {%d %d A quoted string: '%.7q'} 1 2 {Hi Y'all}
+} {1 2 A quoted string: 'Hi Y''al'}
+do_test printf-4.9 {
+  sqlite3_mprintf_str {%d %d A quoted string: '%.6q'} 1 2 {Hi Y'all}
+} {1 2 A quoted string: 'Hi Y''a'}
+do_test printf-4.10 {
+  sqlite3_mprintf_str {%d %d A quoted string: '%.5q'} 1 2 {Hi Y'all}
+} {1 2 A quoted string: 'Hi Y'''}
+do_test printf-4.11 {
+  sqlite3_mprintf_str {%d %d A quoted string: '%.4q'} 1 2 {Hi Y'all}
+} {1 2 A quoted string: 'Hi Y'}
+do_test printf-4.12 {
+  sqlite3_mprintf_str {%d %d A quoted string: '%.3q'} 1 2 {Hi Y'all}
+} {1 2 A quoted string: 'Hi '}
+do_test printf-4.13 {
+  sqlite3_mprintf_str {%d %d A quoted string: '%.2q'} 1 2 {Hi Y'all}
+} {1 2 A quoted string: 'Hi'}
+do_test printf-4.14 {
+  sqlite3_mprintf_str {%d %d A quoted string: '%.1q'} 1 2 {Hi Y'all}
+} {1 2 A quoted string: 'H'}
+do_test printf-4.15 {
+  sqlite3_mprintf_str {%d %d A quoted string: '%.0q'} 1 2 {Hi Y'all}
+} {1 2 A quoted string: ''}
+do_test printf-4.16 {
+  sqlite3_mprintf_str {%d A quoted string: '%.*q'} 1 6 {Hi Y'all}
+} {1 A quoted string: 'Hi Y''a'}
+
+
+do_test printf-5.1 {
+  set x [sqlite3_mprintf_str {%d %d %100000s} 0 0 {Hello}]
+  string length $x
+} {100004}
+do_test printf-5.2 {
+  sqlite3_mprintf_str {%d %d (%-10.10s) %} -9 -10 {HelloHelloHello}
+} {-9 -10 (HelloHello) %}
+
+do_test printf-6.1 {
+  sqlite3_mprintf_z_test , one two three four five six
+} {,one,two,three,four,five,six}
+
+
+do_test printf-7.1 {
+  sqlite3_mprintf_scaled {A double: %g} 1.0e307 1.0
+} {A double: 1e+307}
+do_test printf-7.2 {
+  sqlite3_mprintf_scaled {A double: %g} 1.0e307 10.0
+} {A double: 1e+308}
+do_test printf-7.3 {
+  sqlite3_mprintf_scaled {A double: %g} 1.0e307 100.0
+} {A double: Inf}
+do_test printf-7.4 {
+  sqlite3_mprintf_scaled {A double: %g} -1.0e307 100.0
+} {A double: -Inf}
+do_test printf-7.5 {
+  sqlite3_mprintf_scaled {A double: %+g} 1.0e307 100.0
+} {A double: +Inf}
+
+do_test printf-8.1 {
+  sqlite3_mprintf_int {%u %u %u} 0x7fffffff 0x80000000 0xffffffff
+} {2147483647 2147483648 4294967295}
+do_test printf-8.2 {
+  sqlite3_mprintf_long {%lu %lu %lu} 0x7fffffff 0x80000000 0xffffffff
+} {2147483647 2147483648 4294967295}
+do_test printf-8.3 {
+  sqlite3_mprintf_int64 {%llu %llu %llu} 2147483647 2147483648 4294967296
+} {2147483647 2147483648 4294967296}
+do_test printf-8.4 {
+  sqlite3_mprintf_int64 {%lld %lld %lld} 2147483647 2147483648 4294967296
+} {2147483647 2147483648 4294967296}
+do_test printf-8.5 {
+  sqlite3_mprintf_int64 {%llx %llx %llx} 2147483647 2147483648 4294967296
+} {7fffffff 80000000 100000000}
+do_test printf-8.6 {
+  sqlite3_mprintf_int64 {%llx %llo %lld} -1 -1 -1
+} {ffffffffffffffff 1777777777777777777777 -1}
+do_test printf-8.7 {
+  sqlite3_mprintf_int64 {%llx %llx %llx} +2147483647 +2147483648 +4294967296
+} {7fffffff 80000000 100000000}
+
+do_test printf-9.1 {
+  sqlite3_mprintf_int {%*.*c} 4 4 65
+} {AAAA}
+do_test printf-9.2 {
+  sqlite3_mprintf_int {%*.*c} -4 1 66
+} {B   }
+do_test printf-9.3 {
+  sqlite3_mprintf_int {%*.*c} 4 1 67
+} {   C}
+do_test printf-9.4 {
+  sqlite3_mprintf_int {%d %d %c} 4 1 67
+} {4 1 C}
+set ten {          }
+set fifty $ten$ten$ten$ten$ten
+do_test printf-9.5 {
+  sqlite3_mprintf_int {%d %*c} 1 -201 67
+} "1 C$fifty$fifty$fifty$fifty"
+do_test printf-9.6 {
+  sqlite3_mprintf_int {hi%12345.12346yhello} 0 0 0
+} {hi}
+
+# Ticket #812
+#
+do_test printf-10.1 {
+  sqlite3_mprintf_stronly %s {}
+} {}
+
+# Ticket #831
+#
+do_test printf-10.2 {
+  sqlite3_mprintf_stronly %q {}
+} {}
+
+# Ticket #1340:  Test for loss of precision on large positive exponents
+#
+do_test printf-10.3 {
+  sqlite3_mprintf_double {%d %d %f} 1 1 1e300
+} {1 1 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.000000}
+
+# The non-standard '!' flag on a 'g' conversion forces a decimal point
+# and at least one digit on either side of the decimal point.
+#
+do_test printf-11.1 {
+  sqlite3_mprintf_double {%d %d %!g} 1 1 1
+} {1 1 1.0}
+do_test printf-11.2 {
+  sqlite3_mprintf_double {%d %d %!g} 1 1 123
+} {1 1 123.0}
+do_test printf-11.3 {
+  sqlite3_mprintf_double {%d %d %!g} 1 1 12.3
+} {1 1 12.3}
+do_test printf-11.4 {
+  sqlite3_mprintf_double {%d %d %!g} 1 1 0.123
+} {1 1 0.123}
+do_test printf-11.5 {
+  sqlite3_mprintf_double {%d %d %!.15g} 1 1 1
+} {1 1 1.0}
+do_test printf-11.6 {
+  sqlite3_mprintf_double {%d %d %!.15g} 1 1 1e10
+} {1 1 10000000000.0}
+do_test printf-11.7 {
+  sqlite3_mprintf_double {%d %d %!.15g} 1 1 1e300
+} {1 1 1.0e+300}
+
+# Additional tests for coverage
+#
+do_test printf-12.1 {
+  sqlite3_mprintf_double {%d %d %.2000g} 1 1 1.0
+} {1 1 1}
+
+# Floating point boundary cases
+#
+do_test printf-13.1 {
+  sqlite3_mprintf_hexdouble %.20f 4024000000000000
+} {10.00000000000000000000}
+do_test printf-13.2 {
+  sqlite3_mprintf_hexdouble %.20f 4197d78400000000
+} {100000000.00000000000000000000}
+do_test printf-13.3 {
+  sqlite3_mprintf_hexdouble %.20f 4693b8b5b5056e17
+} {100000000000000000000000000000000.00000000000000000000}
+do_test printf-13.4 {
+  sqlite3_mprintf_hexdouble %.20f 7ff0000000000000
+} {Inf}
+do_test printf-13.5 {
+  sqlite3_mprintf_hexdouble %.20f fff0000000000000
+} {-Inf}
+do_test printf-13.6 {
+  sqlite3_mprintf_hexdouble %.20f fff8000000000000
+} {NaN}
+do_test printf-13.7 {
+  sqlite3_mprintf_hexdouble %2147483648.10000f 4693b8b5b5056e17
+} {/100000000000000000000000000000000.00/}
+
+do_test printf-14.1 {
+  sqlite3_mprintf_str {abc-%y-123} 0 0 {not used}
+} {abc-}
+do_test printf-14.2 {
+  sqlite3_mprintf_n_test {xyzzy}
+} 5
+do_test printf-14.3 {
+  sqlite3_mprintf_str {abc-%T-123} 0 0 {not used}
+} {abc-}
+do_test printf-14.4 {
+  sqlite3_mprintf_str {abc-%#} 0 0 {not used}
+} {abc-}
+do_test printf-14.5 {
+  sqlite3_mprintf_str {abc-%*.*s-xyz} 10 -10 {a_very_long_string}
+} {abc-a_very_lon-xyz}
+do_test printf-14.6 {
+  sqlite3_mprintf_str {abc-%5.10/} 0 0 {not used}
+} {abc-}
+do_test printf-14.7 {
+  sqlite3_mprintf_str {abc-%05.5d} 123 0 {not used}
+} {abc-00123}
+do_test printf-14.8 {
+  sqlite3_mprintf_str {abc-%05.5d} 1234567 0 {not used}
+} {abc-1234567}
+
+for {set i 2} {$i<200} {incr i} {
+  set res [string repeat { } [expr {$i-1}]]x
+  do_test printf-14.90.$i "
+    sqlite3_mprintf_str {%*.*s} $i 500 x
+  " $res
+}
+
+do_test printf-15.1 {
+  sqlite3_snprintf_int 5 {12345} 0
+} {1234}
+do_test printf-15.2 {
+  sqlite3_snprintf_int 5 {} 0
+} {}
+do_test printf-15.3 {
+  sqlite3_snprintf_int 0 {} 0
+} {abcdefghijklmnopqrstuvwxyz}
+
+# Now test malloc() failure within a sqlite3_mprintf():
+#
+foreach var {a b c d} {
+  set $var [string repeat $var 400]
+}
+set str1 "[string repeat A 360]%d%d%s"
+set str2 [string repeat B 5000]
+set zSuccess "[string repeat A 360]11[string repeat B 5000]"
+foreach ::iRepeat {0 1} {
+  set nTestNum 1
+  while {1} {
+    sqlite3_memdebug_fail $nTestNum -repeat $::iRepeat
+    set z [sqlite3_mprintf_str $str1 1 1 $str2]
+    set nFail [sqlite3_memdebug_fail -1 -benign nBenign]
+    do_test printf-malloc-$::iRepeat.$nTestNum {
+      expr {($nFail>0 && $z eq "") || ($nFail==$nBenign && $z eq $zSuccess)}
+    } {1}
+    if {$nFail == 0} break
+    incr nTestNum
+  }
+}
+
+# 2020-05-23
+# ticket 23439ea582241138
+#
+do_execsql_test printf-16.1 {
+  SELECT printf('%.*g',2147483647,0.01);
+} {0.01}
+
+# 2023-02-23 https://sqlite.org/forum/forumpost/d1387c3979c7f557
+# Loss of precision when doing floating-point to decimal
+# conversions on values that have no factional part.
+#
+do_execsql_test printf-17.1 {
+  SELECT format('%!.20g', 13.0);
+} 13.0
+do_execsql_test printf-17.2 {
+  SELECT format('%.3e', 199990000.0);
+} 2.000e+08
+do_execsql_test printf-17.3 {
+  SELECT format('%.3f', 199990000.0);
+} 199990000.000
+do_execsql_test printf-17.4 {
+  SELECT format('%.3g', 199990000.0);
+} 2e+08
+do_execsql_test printf-17.5 {
+  SELECT format('%.4e', 199990000.0);
+} 1.9999e+08
+do_execsql_test printf-17.6 {
+  SELECT format('%.4f', 199990000.0);
+} 199990000.0000
+do_execsql_test printf-17.7 {
+  SELECT format('%.4g', 199990000.0);
+} 2e+08
+do_execsql_test printf-17.8 {
+  SELECT format('%.5e', 199990000.0);
+} 1.99990e+08
+do_execsql_test printf-17.9 {
+  SELECT format('%.5f', 199990000.0);
+} 199990000.00000
+do_execsql_test printf-17.10 {
+  SELECT format('%.5g', 199990000.0);
+} 1.9999e+08
+do_execsql_test printf-17.11 {
+  SELECT format('%.30f',1.0000000000000000076e-50);
+} 0.000000000000000000000000000000
+
+#-------------------------------------------------------------------------
+# dbsqlfuzz ad651aad4bb2100f3a724129a555d8d773366d46
+#
+db close
+sqlite3 db test.db
+sqlite3_db_config_lookaside db 0 0 0
+do_execsql_test printf-18.1 {
+  SELECT length( format('%,.249f', -5.0e-300) );
+} {252}
+
+# 2024-02-16
+# https://sqlite.org/forum/info/393708f4a8
+#
+# The problem introduced by on 2023-07-03 by
+# https://sqlite.org/src/info/32befb224b254639
+#
+do_execsql_test printf-19.1 {
+  SELECT format('%0.0f %0.0g %0.0g', 0.9, 0.09, 1.9);
+} {{1 0.09 2}}
+do_execsql_test printf-19.2 {
+  SELECT format('%0.0f %#0.0f',0.0, 0.0);
+} {{0 0.}}
+do_execsql_test printf-19.3 {
+  SELECT format('%,.0f %,.0f',12345e+10, 12345e+11);
+} {{123,450,000,000,000 1,234,500,000,000,000}}
+
+
+finish_test
diff --git a/test/printf2.test b/test/printf2.test
new file mode 100644
index 0000000000000000000000000000000000000000..2f6208b17f6f265658005622fcb7c639b8273914
--- /dev/null
+++ b/test/printf2.test
@@ -0,0 +1,213 @@
+# 2013-12-17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the printf() SQL function.
+#
+#
+# EVIDENCE-OF: R-32560-14372 The format(FORMAT,...) SQL function works
+# like the sqlite3_mprintf() C-language function and the printf()
+# function from the standard C library.
+#
+# EVIDENCE-OF: R-64900-53159 The printf() SQL function is an alias for
+# the format() SQL function.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# EVIDENCE-OF: R-40086-60101 If the FORMAT argument is missing or NULL
+# then the result is NULL.
+#
+do_execsql_test printf2-1.1 {
+  SELECT quote(format()), quote(format(NULL,1,2,3));
+} {NULL NULL}
+
+
+do_execsql_test printf2-1.2 {
+  SELECT printf('hello');
+} {hello}
+do_execsql_test printf2-1.3 {
+  SELECT format('%d,%d,%d',55,-11,3421);
+} {55,-11,3421}
+do_execsql_test printf2-1.4 {
+  SELECT printf('%d,%d,%d',55,'-11',3421);
+} {55,-11,3421}
+do_execsql_test printf2-1.5 {
+  SELECT format('%d,%d,%d,%d',55,'-11',3421);
+} {55,-11,3421,0}
+do_execsql_test printf2-1.6 {
+  SELECT printf('%.2f',3.141592653);
+} {3.14}
+do_execsql_test printf2-1.7 {
+  SELECT format('%.*f',2,3.141592653);
+} {3.14}
+do_execsql_test printf2-1.8 {
+  SELECT printf('%*.*f',5,2,3.141592653);
+} {{ 3.14}}
+do_execsql_test printf2-1.9 {
+  SELECT format('%d',314159.2653);
+} {314159}
+do_execsql_test printf2-1.10 {
+  SELECT printf('%lld',314159.2653);
+} {314159}
+do_execsql_test printf2-1.11 {
+  SELECT format('%lld%n',314159.2653,'hi');
+} {314159}
+do_execsql_test printf2-1.12 {
+  SELECT printf('%n',0);
+} {{}}
+
+# EVIDENCE-OF: R-17002-27534 The %z format is interchangeable with %s.
+#
+do_execsql_test printf2-1.12 {
+  SELECT format('%.*z',5,'abcdefghijklmnop');
+} {abcde}
+do_execsql_test printf2-1.13 {
+  SELECT printf('%c','abcdefghijklmnop');
+} {a}
+
+# EVIDENCE-OF: R-02347-27622 The %n format is silently ignored and does
+# not consume an argument.
+#
+do_execsql_test printf2-2.1 {
+  CREATE TABLE t1(a,b,c);
+  INSERT INTO t1 VALUES(1,2,3);
+  INSERT INTO t1 VALUES(-1,-2,-3);
+  INSERT INTO t1 VALUES('abc','def','ghi');
+  INSERT INTO t1 VALUES(1.5,2.25,3.125);
+  SELECT printf('(%s)-%n-(%s)',a,b,c) FROM t1 ORDER BY rowid;
+} {(1)--(2) (-1)--(-2) (abc)--(def) (1.5)--(2.25)}
+
+# EVIDENCE-OF: R-56064-04001 The %p format is an alias for %X.
+#
+do_execsql_test printf2-2.2 {
+  SELECT printf('%s=(%p)',a,a) FROM t1 ORDER BY a;
+} {-1=(FFFFFFFFFFFFFFFF) 1=(1) 1.5=(1) abc=(0)}
+
+# EVIDENCE-OF: R-29410-53018 If there are too few arguments in the
+# argument list, missing arguments are assumed to have a NULL value,
+# which is translated into 0 or 0.0 for numeric formats or an empty
+# string for %s.
+#
+do_execsql_test printf2-2.3 {
+  SELECT printf('%s=(%d/%g/%s)',a) FROM t1 ORDER BY a;
+} {-1=(0/0/) 1=(0/0/) 1.5=(0/0/) abc=(0/0/)}
+
+# The precision of the %c conversion causes the character to repeat.
+#
+do_execsql_test printf2-3.1 {
+  SELECT printf('|%110.100c|','*');
+} {{|          ****************************************************************************************************|}}
+do_execsql_test printf2-3.2 {
+  SELECT printf('|%-110.100c|','*');
+} {{|****************************************************************************************************          |}}
+do_execsql_test printf2-3.3 {
+  SELECT printf('|%9.8c|%-9.8c|','*','*');
+} {{| ********|******** |}}
+do_execsql_test printf2-3.4 {
+  SELECT printf('|%8.8c|%-8.8c|','*','*');
+} {|********|********|}
+do_execsql_test printf2-3.5 {
+  SELECT printf('|%7.8c|%-7.8c|','*','*');
+} {|********|********|}
+
+# The "," separator
+do_execsql_test printf2-4.1 {
+  SELECT printf('|%,d|%,d|',0,-1);
+} {|0|-1|}
+do_execsql_test printf2-4.2 {
+  SELECT printf('|%,d|%,d|',12,-12);
+} {|12|-12|}
+do_execsql_test printf2-4.3 {
+  SELECT printf('|%,d|%,d|',123,-123);
+} {|123|-123|}
+do_execsql_test printf2-4.4 {
+  SELECT printf('|%,d|%,d|',1234,-1234);
+} {|1,234|-1,234|}
+do_execsql_test printf2-4.5 {
+  SELECT printf('|%,d|%,d|',12345,-12345);
+} {|12,345|-12,345|}
+do_execsql_test printf2-4.6 {
+  SELECT printf('|%,d|%,d|',123456,-123456);
+} {|123,456|-123,456|}
+do_execsql_test printf2-4.7 {
+  SELECT printf('|%,d|%,d|',1234567,-1234567);
+} {|1,234,567|-1,234,567|}
+do_execsql_test printf2-4.8 {
+  SELECT printf('|%,d|%,d|',12345678,-12345678);
+} {|12,345,678|-12,345,678|}
+do_execsql_test printf2-4.9 {
+  SELECT printf('|%,d|%,d|',123456789,-123456789);
+} {|123,456,789|-123,456,789|}
+do_execsql_test printf2-4.10 {
+  SELECT printf('|%,d|%,d|',1234567890,-1234567890);
+} {|1,234,567,890|-1,234,567,890|}
+
+# 2018-02-19.  Unicode characters with %c
+do_execsql_test printf2-5.100 {
+  SELECT printf('(%8c)',char(11106));
+} {{(       ⭢)}}
+do_execsql_test printf2-5.101 {
+  SELECT printf('(%-8c)',char(11106));
+} {{(⭢       )}}
+do_execsql_test printf2-5.102 {
+  SELECT printf('(%5.3c)',char(1492));
+} {{(  ההה)}}
+do_execsql_test printf2-5.103 {
+  SELECT printf('(%-5.3c)',char(1492));
+} {{(ההה  )}}
+do_execsql_test printf2-5.104 {
+  SELECT printf('(%3.3c)',char(1492));
+} {{(ההה)}}
+do_execsql_test printf2-5.105 {
+  SELECT printf('(%-3.3c)',char(1492));
+} {{(ההה)}}
+do_execsql_test printf2-5.104 {
+  SELECT printf('(%2c)',char(1513));
+} {{( ש)}}
+do_execsql_test printf2-5.106 {
+  SELECT printf('(%-2c)',char(1513));
+} {{(ש )}}
+
+# 2018-02-19.  Unicode characters with the "!" flag in %s and friends.
+do_execsql_test printf2-6.100 {
+  SELECT printf('(%!.3s)','הנה מה־טוב ומה־נעים שבת אחים גם־יחד');
+} {(הנה)}
+do_execsql_test printf2-6.101 {
+  SELECT printf('(%.6s)','הנה מה־טוב ומה־נעים שבת אחים גם־יחד');
+} {(הנה)}
+do_execsql_test printf2-6.102 {
+  SELECT printf('(%!5.3s)','הנה מה־טוב ומה־נעים שבת אחים גם־יחד');
+} {{(  הנה)}}
+do_execsql_test printf2-6.103 {
+  SELECT printf('(%8.6s)','הנה מה־טוב ומה־נעים שבת אחים גם־יחד');
+} {{(  הנה)}}
+do_execsql_test printf2-6.104 {
+  SELECT printf('(%!-5.3s)','הנה מה־טוב ומה־נעים שבת אחים גם־יחד');
+} {{(הנה  )}}
+do_execsql_test printf2-6.105 {
+  SELECT printf('(%-8.6s)','הנה מה־טוב ומה־נעים שבת אחים גם־יחד');
+} {{(הנה  )}}
+do_execsql_test printf2-6.106 {
+  SELECT printf('(%!.3Q)','הנה מה־טוב ומה־נעים שבת אחים גם־יחד');
+} {('הנה')}
+do_execsql_test printf2-6.107 {
+  SELECT printf('(%.6Q)','הנה מה־טוב ומה־נעים שבת אחים גם־יחד');
+} {('הנה')}
+do_execsql_test printf2-6.108 {
+  SELECT printf('(%!7.3Q)','הנה מה־טוב ומה־נעים שבת אחים גם־יחד');
+} {{(  'הנה')}}
+do_execsql_test printf2-6.109 {
+  SELECT printf('(%10.6Q)','הנה מה־טוב ומה־נעים שבת אחים גם־יחד');
+} {{(  'הנה')}}
+
+
+finish_test
diff --git a/test/progress.test b/test/progress.test
new file mode 100644
index 0000000000000000000000000000000000000000..f6d7229243aa55666b550fc9da7777e291c5a392
--- /dev/null
+++ b/test/progress.test
@@ -0,0 +1,178 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the 'progress callback'.
+#
+# $Id: progress.test,v 1.8 2007/06/15 14:53:53 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If the progress callback is not available in this build, skip this
+# whole file.
+ifcapable !progress {
+  finish_test
+  return
+}
+
+# Build some test data
+#
+execsql {
+  BEGIN;
+  CREATE TABLE t1(a);
+  INSERT INTO t1 VALUES(1);
+  INSERT INTO t1 VALUES(2);
+  INSERT INTO t1 VALUES(3);
+  INSERT INTO t1 VALUES(4);
+  INSERT INTO t1 VALUES(5);
+  INSERT INTO t1 VALUES(6);
+  INSERT INTO t1 VALUES(7);
+  INSERT INTO t1 VALUES(8);
+  INSERT INTO t1 VALUES(9);
+  INSERT INTO t1 VALUES(10);
+  COMMIT;
+}
+
+
+# Test that the progress callback is invoked.
+do_test progress-1.0 {
+  set counter 0
+  db progress 1 "[namespace code {incr counter}] ; expr 0"
+  execsql {
+    SELECT * FROM t1
+  }
+  expr $counter > 1
+} 1
+do_test progress-1.0.1 {
+  db progress
+} {::namespace inscope :: {incr counter} ; expr 0}
+do_test progress-1.0.2 {
+  set v [catch {db progress xyz bogus} msg]
+  lappend v $msg
+} {1 {expected integer but got "xyz"}}
+
+# Test that the query is abandoned when the progress callback returns non-zero
+do_test progress-1.1 {
+  set counter 0
+  db progress 1 "[namespace code {incr counter}] ; expr 1"
+  set rc [catch {execsql {
+    SELECT * FROM t1
+  }}]
+  list $counter $rc
+} {1 1}
+
+# Test that the query is rolled back when the progress callback returns
+# non-zero.
+do_test progress-1.2 {
+
+  # This figures out how many opcodes it takes to copy 5 extra rows into t1.
+  db progress 1 "[namespace code {incr five_rows}] ; expr 0"
+  set five_rows 0
+  execsql {
+    INSERT INTO t1 SELECT a+10 FROM t1 WHERE a < 6
+  }
+  db progress 0 ""
+  execsql {
+    DELETE FROM t1 WHERE a > 10
+  }
+
+  # Now set up the progress callback to abandon the query after the number of
+  # opcodes to copy 5 rows. That way, when we try to copy 6 rows, we know
+  # some data will have been inserted into the table by the time the progress
+  # callback abandons the query.
+  db progress $five_rows "expr 1"
+  catchsql {
+    INSERT INTO t1 SELECT a+10 FROM t1 WHERE a < 9
+  }
+  execsql {
+    SELECT count(*) FROM t1
+  }
+} 10
+
+# Test that an active transaction remains active and not rolled back 
+# after the progress query abandons a query. 
+#
+# UPDATE: It is now recognised that this is a sure route to database
+# corruption. So the transaction is rolled back.
+do_test progress-1.3 {
+
+  db progress 0 ""
+  execsql BEGIN
+  execsql {
+    INSERT INTO t1 VALUES(11)
+  }
+  db progress 1 "expr 1"
+  catchsql {
+    INSERT INTO t1 VALUES(12)
+  }
+  db progress 0 ""
+  catchsql COMMIT
+} {1 {cannot commit - no transaction is active}}
+do_test progress-1.3.1 {
+  execsql {
+    SELECT count(*) FROM t1
+  }
+} 10
+
+# Check that a value of 0 for N means no progress callback
+do_test progress-1.4 {
+  set counter 0
+  db progress 0 "[namespace code {incr counter}] ; expr 0"
+  execsql {
+    SELECT * FROM t1;
+  }
+  set counter
+} 0
+
+db progress 0 ""
+
+# Make sure other queries can be run from within the progress
+# handler.  Ticket #1827
+#
+do_test progress-1.5 {
+  set rx 0
+  proc set_rx {args} {
+    db progress 0 {}
+    set ::rx [db eval {SELECT count(*) FROM t1}]
+    return [expr 0]
+  }
+  db progress 10 set_rx
+  db eval {
+    SELECT sum(a) FROM t1
+  }
+} {55}
+do_test progress-1.6 {
+  set ::rx
+} {10}
+
+# Check that abandoning a query using the progress handler does
+# not cause other queries to abort. Ticket #2415.
+do_test progress-1.7 {
+  execsql {
+    CREATE TABLE abc(a, b, c);
+    INSERT INTO abc VALUES(1, 2, 3);
+    INSERT INTO abc VALUES(4, 5, 6);
+    INSERT INTO abc VALUES(7, 8, 9);
+  }
+
+  set ::res [list]
+  db eval {SELECT a, b, c FROM abc} {
+    lappend ::res $a $b $c
+    db progress 5 "expr 1"
+    catch {db eval {SELECT a, b, c FROM abc} { }} msg
+    db progress 5 "expr 0"
+    lappend ::res $msg
+  }
+
+  set ::res
+} {1 2 3 interrupted 4 5 6 interrupted 7 8 9 interrupted}
+
+finish_test
diff --git a/test/ptrchng.test b/test/ptrchng.test
new file mode 100644
index 0000000000000000000000000000000000000000..75525f981c5755ad13cbd5896bcd010abd7dfc2c
--- /dev/null
+++ b/test/ptrchng.test
@@ -0,0 +1,223 @@
+# 2007 April 27
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# The focus of the tests in this file are to verify that the
+# underlying TEXT or BLOB representation of an sqlite3_value
+# changes appropriately when APIs from the following set are
+# called:
+#
+#     sqlite3_value_text()
+#     sqlite3_value_text16()
+#     sqlite3_value_blob()
+#     sqlite3_value_bytes()
+#     sqlite3_value_bytes16()
+#
+# $Id: ptrchng.test,v 1.5 2008/07/12 14:52:20 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !bloblit {
+  finish_test
+  return
+}
+
+# Register the "pointer_change" SQL function.
+#
+sqlite3_create_function db
+
+do_test ptrchng-1.1 {
+  execsql {
+    CREATE TABLE t1(x INTEGER PRIMARY KEY, y BLOB);
+    INSERT INTO t1 VALUES(1, 'abc');
+    INSERT INTO t1 VALUES(2, 
+       'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234356789');
+    INSERT INTO t1 VALUES(3, x'626c6f62');
+    INSERT INTO t1 VALUES(4,
+ x'000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f2021222324'
+    );
+    SELECT count(*) FROM t1;
+  }
+} {4}
+
+# For the short entries that fit in the Mem.zBuf[], the pointer should
+# never change regardless of what type conversions occur.
+#
+# UPDATE: No longer true, as Mem.zBuf[] has been removed.
+#
+do_test ptrchng-2.1 {
+  execsql {
+    SELECT pointer_change(y, 'text', 'noop', 'blob') FROM t1 WHERE x=1
+  }
+} {0}
+do_test ptrchng-2.2 {
+  execsql {
+    SELECT pointer_change(y, 'blob', 'noop', 'text') FROM t1 WHERE x=1
+  }
+} {0}
+ifcapable utf16 {
+  do_test ptrchng-2.3 {
+    execsql {
+      SELECT pointer_change(y, 'text', 'noop', 'text16') FROM t1 WHERE x=1
+    }
+  } {1}
+  do_test ptrchng-2.4 {
+    execsql {
+      SELECT pointer_change(y, 'blob', 'noop', 'text16') FROM t1 WHERE x=1
+    }
+  } {1}
+  do_test ptrchng-2.5 {
+    execsql {
+      SELECT pointer_change(y, 'text16', 'noop', 'blob') FROM t1 WHERE x=1
+    }
+  } {0}
+  do_test ptrchng-2.6 {
+    execsql {
+      SELECT pointer_change(y, 'text16', 'noop', 'text') FROM t1 WHERE x=1
+    }
+  } {1}
+}
+do_test ptrchng-2.11 {
+  execsql {
+    SELECT pointer_change(y, 'text', 'noop', 'blob') FROM t1 WHERE x=3
+  }
+} {0}
+do_test ptrchng-2.12 {
+  execsql {
+    SELECT pointer_change(y, 'blob', 'noop', 'text') FROM t1 WHERE x=3
+  }
+} {0}
+ifcapable utf16 {
+  do_test ptrchng-2.13 {
+    execsql {
+      SELECT pointer_change(y, 'text', 'noop', 'text16') FROM t1 WHERE x=3
+    }
+  } {1}
+  do_test ptrchng-2.14 {
+    execsql {
+      SELECT pointer_change(y, 'blob', 'noop', 'text16') FROM t1 WHERE x=3
+    }
+  } {1}
+  do_test ptrchng-2.15 {
+    execsql {
+      SELECT pointer_change(y, 'text16', 'noop', 'blob') FROM t1 WHERE x=3
+    }
+  } {0}
+  do_test ptrchng-2.16 {
+    execsql {
+      SELECT pointer_change(y, 'text16', 'noop', 'text') FROM t1 WHERE x=3
+    }
+  } {1}
+}
+
+# For the long entries that do not fit in the Mem.zBuf[], the pointer
+# should change sometimes.
+#
+do_test ptrchng-3.1 {
+  execsql {
+    SELECT pointer_change(y, 'text', 'noop', 'blob') FROM t1 WHERE x=2
+  }
+} {0}
+do_test ptrchng-3.2 {
+  execsql {
+    SELECT pointer_change(y, 'blob', 'noop', 'text') FROM t1 WHERE x=2
+  }
+} {0}
+ifcapable utf16 {
+  do_test ptrchng-3.3 {
+    execsql {
+      SELECT pointer_change(y, 'text', 'noop', 'text16') FROM t1 WHERE x=2
+    }
+  } {1}
+  do_test ptrchng-3.4 {
+    execsql {
+      SELECT pointer_change(y, 'blob', 'noop', 'text16') FROM t1 WHERE x=2
+    }
+  } {1}
+  do_test ptrchng-3.5 {
+    execsql {
+      SELECT pointer_change(y, 'text16', 'noop', 'blob') FROM t1 WHERE x=2
+    }
+  } {0}
+  do_test ptrchng-3.6 {
+    execsql {
+      SELECT pointer_change(y, 'text16', 'noop', 'text') FROM t1 WHERE x=2
+    }
+  } {1}
+}
+do_test ptrchng-3.11 {
+  execsql {
+    SELECT pointer_change(y, 'text', 'noop', 'blob') FROM t1 WHERE x=4
+  }
+} {0}
+do_test ptrchng-3.12 {
+  execsql {
+    SELECT pointer_change(y, 'blob', 'noop', 'text') FROM t1 WHERE x=4
+  }
+} {0}
+ifcapable utf16 {
+  do_test ptrchng-3.13 {
+    execsql {
+      SELECT pointer_change(y, 'text', 'noop', 'text16') FROM t1 WHERE x=4
+    }
+  } {1}
+  do_test ptrchng-3.14 {
+    execsql {
+      SELECT pointer_change(y, 'blob', 'noop', 'text16') FROM t1 WHERE x=4
+    }
+  } {1}
+  do_test ptrchng-3.15 {
+    execsql {
+      SELECT pointer_change(y, 'text16', 'noop', 'blob') FROM t1 WHERE x=4
+    }
+  } {0}
+  do_test ptrchng-3.16 {
+    execsql {
+      SELECT pointer_change(y, 'text16', 'noop', 'text') FROM t1 WHERE x=4
+    }
+  } {1}
+}
+
+# A call to _bytes() should never reformat a _text() or _blob().
+#
+do_test ptrchng-4.1 {
+  execsql {
+    SELECT pointer_change(y, 'text', 'bytes', 'text') FROM t1
+  }
+} {0 0 0 0}
+do_test ptrchng-4.2 {
+  execsql {
+    SELECT pointer_change(y, 'blob', 'bytes', 'blob') FROM t1
+  }
+} {0 0 0 0}
+
+# A call to _blob() should never trigger a reformat
+#
+do_test ptrchng-5.1 {
+  execsql {
+    SELECT pointer_change(y, 'text', 'bytes', 'blob') FROM t1
+  }
+} {0 0 0 0}
+ifcapable utf16 {
+  do_test ptrchng-5.2 {
+    execsql {
+      SELECT pointer_change(y, 'text16', 'noop', 'blob') FROM t1
+    }
+  } {0 0 0 0}
+  do_test ptrchng-5.3 {
+    execsql {
+      SELECT pointer_change(y, 'text16', 'bytes16', 'blob') FROM t1
+    }
+  } {0 0 0 0}
+}
+
+finish_test
diff --git a/test/pushdown.test b/test/pushdown.test
new file mode 100644
index 0000000000000000000000000000000000000000..cb9042d258ffde8f56e6c9015b46ed4672736098
--- /dev/null
+++ b/test/pushdown.test
@@ -0,0 +1,359 @@
+# 2017-04-29
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test cases for the push-down optimizations.
+#
+#
+# There are two different meanings for "push-down optimization".
+#
+#   (1)  "MySQL push-down" means that WHERE clause terms that can be
+#        evaluated using only the index and without reference to the
+#        table are run first, so that if they are false, unnecessary table
+#        seeks are avoided.  See https://sqlite.org/src/info/d7bb79ed3a40419d
+#        from 2017-04-29.
+#
+#   (2)  "WHERE-clause pushdown" means to push WHERE clause terms in
+#        outer queries down into subqueries.  See
+#        https://sqlite.org/src/info/6df18e949d367629 from 2015-06-02.
+#
+# This module started out as tests for MySQL push-down only.  But because
+# of naming ambiguity, it has picked up test cases for WHERE-clause push-down
+# over the years.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix pushdown
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b, c);
+  INSERT INTO t1 VALUES(1, 'b1', 'c1');
+  INSERT INTO t1 VALUES(2, 'b2', 'c2');
+  INSERT INTO t1 VALUES(3, 'b3', 'c3');
+  INSERT INTO t1 VALUES(4, 'b4', 'c4');
+  CREATE INDEX i1 ON t1(a, c);
+}
+
+proc f {val} {
+  lappend ::L $val
+  return 0
+}
+db func f f 
+
+do_test 1.1 {
+  set L [list]
+  execsql { SELECT * FROM t1 WHERE a=2 AND f(b) AND f(c) }
+  set L
+} {c2}
+
+do_test 1.2 {
+  set L [list]
+  execsql { SELECT * FROM t1 WHERE a=3 AND f(c) AND f(b) }
+  set L
+} {c3}
+
+do_execsql_test 1.3 {
+  DROP INDEX i1;
+  CREATE INDEX i1 ON t1(a, b);
+}
+do_test 1.4 {
+  set L [list]
+  execsql { SELECT * FROM t1 WHERE a=2 AND f(b) AND f(c) }
+  set L
+} {b2}
+
+do_test 1.5 {
+  set L [list]
+  execsql { SELECT * FROM t1 WHERE a=3 AND f(c) AND f(b) }
+  set L
+} {b3}
+
+#-----------------------------------------------
+
+do_execsql_test 2.0 {
+  CREATE TABLE u1(a, b, c);
+  CREATE TABLE u2(x, y, z);
+
+  INSERT INTO u1 VALUES('a1', 'b1', 'c1');
+  INSERT INTO u2 VALUES('a1', 'b1', 'c1');
+}
+
+do_test 2.1 {
+  set L [list]
+  execsql {
+    SELECT * FROM u1 WHERE f('one')=123 AND 123=(
+      SELECT x FROM u2 WHERE x=a AND f('two')
+    )
+  }
+  set L
+} {one}
+
+do_test 2.2 {
+  set L [list]
+  execsql {
+    SELECT * FROM u1 WHERE 123=(
+      SELECT x FROM u2 WHERE x=a AND f('two')
+    ) AND f('three')=123
+  }
+  set L
+} {three}
+
+# 2022-11-25 dbsqlfuzz crash-3a548de406a50e896c1bf7142692d35d339d697f
+# Disable the WHERE-clause push-down optimization for compound subqueries
+# if any arm of the compound has an incompatible affinity.
+#
+reset_db
+do_execsql_test 3.1 {
+  CREATE TABLE t0(c0 INT);
+  INSERT INTO t0 VALUES(0);
+  CREATE TABLE t1_a(a INTEGER PRIMARY KEY, b TEXT);
+  INSERT INTO t1_a VALUES(1,'one');
+  CREATE TABLE t1_b(c INTEGER PRIMARY KEY, d TEXT);
+  INSERT INTO t1_b VALUES(2,'two');
+  CREATE VIEW v0 AS SELECT CAST(t0.c0 AS INTEGER) AS c0 FROM t0;
+  CREATE VIEW v1(a,b) AS SELECT a, b FROM t1_a UNION ALL SELECT c, 0 FROM t1_b;
+  SELECT v1.a, quote(v1.b), t0.c0 AS cd FROM t0 LEFT JOIN v0 ON v0.c0!=0,v1;
+} {
+  1 'one' 0
+  2 0     0
+}
+do_execsql_test 3.2 {
+  SELECT a, quote(b), cd FROM (
+    SELECT v1.a, v1.b, t0.c0 AS cd FROM t0 LEFT JOIN v0 ON v0.c0!=0, v1
+  ) WHERE a=2 AND b='0' AND cd=0;
+} {}
+do_execsql_test 3.3 {
+  SELECT a, quote(b), cd FROM (
+    SELECT v1.a, v1.b, t0.c0 AS cd FROM t0 LEFT JOIN v0 ON v0.c0!=0, v1
+  ) WHERE a=1 AND b='one' AND cd=0;
+} {1 'one' 0}
+do_execsql_test 3.4 {
+  SELECT a, quote(b), cd FROM (
+    SELECT v1.a, v1.b, t0.c0 AS cd FROM t0 LEFT JOIN v0 ON v0.c0!=0, v1
+  ) WHERE a=2 AND b=0 AND cd=0;
+} {
+  2 0     0
+}
+
+# 2023-02-22 https://sqlite.org/forum/forumpost/bcc4375032
+# Performance regression caused by check-in [1ad41840c5e0fa70] from 2022-11-25.
+# That check-in added a new restriction on push-down.  The new restriction is
+# no longer necessary after check-in [27655c9353620aa5] from 2022-12-14.
+#
+do_execsql_test 3.5 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a INT, b INT, c TEXT, PRIMARY KEY(a,b)) WITHOUT ROWID;
+  INSERT INTO t1(a,b,c) VALUES
+    (1,100,'abc'),
+    (2,200,'def'),
+    (3,300,'abc');
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t2(a INT, b INT, c TEXT, PRIMARY KEY(a,b)) WITHOUT ROWID;
+  INSERT INTO t2(a,b,c) VALUES
+    (1,110,'efg'),
+    (2,200,'hij'),
+    (3,330,'klm');
+  CREATE VIEW v3 AS
+    SELECT a, b, c FROM t1
+    UNION ALL
+    SELECT a, b, 'xyz' FROM t2;
+  SELECT * FROM v3 WHERE a=2 AND b=200;
+} {2 200 def 2 200 xyz}
+do_eqp_test 3.6 {
+  SELECT * FROM v3 WHERE a=2 AND b=200;
+} {
+  QUERY PLAN
+  |--CO-ROUTINE v3
+  |  `--COMPOUND QUERY
+  |     |--LEFT-MOST SUBQUERY
+  |     |  `--SEARCH t1 USING PRIMARY KEY (a=? AND b=?)
+  |     `--UNION ALL
+  |        `--SEARCH t2 USING PRIMARY KEY (a=? AND b=?)
+  `--SCAN v3
+}
+#                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+# We want both arms of the compound subquery to use the
+# primary key.
+
+# The following is a test of the count-of-view optimization.  This does
+# not have anything to do with push-down.  It is here because this is a
+# convenient place to put the test.
+#
+do_execsql_test 3.7 {
+  SELECT count(*) FROM v3;
+} 6
+do_eqp_test 3.8 {
+  SELECT count(*) FROM v3;
+} {
+  QUERY PLAN
+  |--SCAN CONSTANT ROW
+  |--SCALAR SUBQUERY xxxxxx
+  |  `--SCAN t1
+  `--SCALAR SUBQUERY xxxxxx
+     `--SCAN t2
+}
+# ^^^^^^^^^^^^^^^^^^^^
+# The query should be converted into:
+#   SELECT (SELECT count(*) FROM t1)+(SELECT count(*) FROM t2)
+
+# 2023-05-09 https://sqlite.org/forum/forumpost/a7d4be7fb6
+# Restriction (9) on the WHERE-clause push-down optimization.
+# 
+reset_db
+db null -
+do_execsql_test 4.1 {
+  CREATE TABLE t1(a INT);
+  CREATE TABLE t2(b INT);
+  CREATE TABLE t3(c INT);
+  INSERT INTO t3(c) VALUES(3);
+  CREATE TABLE t4(d INT);
+  CREATE TABLE t5(e INT);
+  INSERT INTO t5(e) VALUES(5);
+  CREATE VIEW v6(f,g) AS SELECT d, e FROM t4 RIGHT JOIN t5 ON true;
+  SELECT * FROM  t1 JOIN t2 ON false RIGHT JOIN t3 ON true CROSS JOIN v6;
+} {- - 3 - 5}
+do_execsql_test 4.2 {
+  SELECT * FROM v6 JOIN t5 ON false RIGHT JOIN t3 ON true;
+} {- - - 3}
+do_execsql_test 4.3 {
+  SELECT * FROM t1 JOIN t2 ON false JOIN v6 ON true RIGHT JOIN t3 ON true;
+} {- - - - 3}
+
+# 2023-05-15 https://sqlite.org/forum/forumpost/f3f546025a
+# This is restriction (6) on sqlite3ExprIsSingleTableConstraint().
+# That restriction (now) used to implement restriction (9) on push-down.
+# It is used for other things too, so it is not purely a push-down
+# restriction.  But it seems convenient to put it here.
+#
+reset_db
+db null -
+do_execsql_test 5.0 {
+  CREATE TABLE t1(a INT);  INSERT INTO t1 VALUES(1);
+  CREATE TABLE t2(b INT);  INSERT INTO t2 VALUES(2);
+  CREATE TABLE t3(c INT);  INSERT INTO t3 VALUES(3);
+  CREATE TABLE t4(d INT);  INSERT INTO t4 VALUES(4);
+  CREATE TABLE t5(e INT);  INSERT INTO t5 VALUES(5);
+  SELECT *
+    FROM t1 JOIN t2 ON null RIGHT JOIN t3 ON true
+          LEFT JOIN (t4 JOIN t5 ON d+1=e) ON d=4
+   WHERE e>0;
+} {- - 3 4 5}
+
+
+# 2024-04-05
+# Allow push-down of operators of the form "expr IN table".
+#
+reset_db
+do_execsql_test 6.0 {
+  CREATE TABLE t01(w,x,y,z);
+  CREATE TABLE t02(w,x,y,z);
+  CREATE VIEW t0(w,x,y,z) AS
+    SELECT w,x,y,z FROM t01 UNION ALL SELECT w,x,y,z FROM t02;
+  CREATE INDEX t01x ON t01(w,x,y);
+  CREATE INDEX t02x ON t02(w,x,y);
+  CREATE VIEW v1(k) AS VALUES(77),(88),(99);
+  CREATE TABLE k1(k);
+  INSERT INTO k1 SELECT * FROM v1;
+}
+do_eqp_test 6.1 {
+  WITH k(n) AS (VALUES(77),(88),(99))
+  SELECT max(z) FROM t0 WHERE w=123 AND x IN k AND y BETWEEN 44 AND 55;
+} {
+  QUERY PLAN
+  |--CO-ROUTINE t0
+  |  `--COMPOUND QUERY
+  |     |--LEFT-MOST SUBQUERY
+  |     |  |--SEARCH t01 USING INDEX t01x (w=? AND x=? AND y>? AND y<?)
+  |     |  `--LIST SUBQUERY xxxxxx
+  |     |     |--MATERIALIZE k
+  |     |     |  `--SCAN 3 CONSTANT ROWS
+  |     |     |--SCAN k
+  |     |     `--CREATE BLOOM FILTER
+  |     `--UNION ALL
+  |        |--SEARCH t02 USING INDEX t02x (w=? AND x=? AND y>? AND y<?)
+  |        `--REUSE LIST SUBQUERY xxxxxx
+  |--SEARCH t0
+  `--REUSE LIST SUBQUERY xxxxxx
+}
+# ^^^^--- The key feature above is that the SEARCH for each subquery
+# uses all three fields of the index w, x, and y.  Prior to the push-down
+# of "expr IN table", only the w term of the index would be used.  Similar
+# for the following tests:
+#
+do_eqp_test 6.2 {
+  SELECT max(z) FROM t0 WHERE w=123 AND x IN v1 AND y BETWEEN 44 AND 55;
+} {
+  QUERY PLAN
+  |--CO-ROUTINE t0
+  |  `--COMPOUND QUERY
+  |     |--LEFT-MOST SUBQUERY
+  |     |  |--SEARCH t01 USING INDEX t01x (w=? AND x=? AND y>? AND y<?)
+  |     |  `--LIST SUBQUERY xxxxxx
+  |     |     |--CO-ROUTINE v1
+  |     |     |  `--SCAN 3 CONSTANT ROWS
+  |     |     |--SCAN v1
+  |     |     `--CREATE BLOOM FILTER
+  |     `--UNION ALL
+  |        |--SEARCH t02 USING INDEX t02x (w=? AND x=? AND y>? AND y<?)
+  |        `--REUSE LIST SUBQUERY xxxxxx
+  |--SEARCH t0
+  `--REUSE LIST SUBQUERY xxxxxx
+}
+do_eqp_test 6.3 {
+  SELECT max(z) FROM t0 WHERE w=123 AND x IN k1 AND y BETWEEN 44 AND 55;
+} {
+  QUERY PLAN
+  |--CO-ROUTINE t0
+  |  `--COMPOUND QUERY
+  |     |--LEFT-MOST SUBQUERY
+  |     |  |--SEARCH t01 USING INDEX t01x (w=? AND x=? AND y>? AND y<?)
+  |     |  `--LIST SUBQUERY xxxxxx
+  |     |     |--SCAN k1
+  |     |     `--CREATE BLOOM FILTER
+  |     `--UNION ALL
+  |        |--SEARCH t02 USING INDEX t02x (w=? AND x=? AND y>? AND y<?)
+  |        `--REUSE LIST SUBQUERY xxxxxx
+  |--SEARCH t0
+  `--REUSE LIST SUBQUERY xxxxxx
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 7.0 {
+  CREATE  TABLE  t0_1(a INT , b INT, c INT);
+  CREATE  TABLE  t0_2(a INT , b INT, c INT);
+
+  INSERT INTO t0_1 (a, b, c) VALUES (1, 0, 1);
+  INSERT INTO t0_2 (a, b, c) VALUES (1, 0, 1);
+
+  CREATE  TABLE  empty1(x);
+  CREATE  TABLE  empty2(y);
+}
+
+do_execsql_test 7.1 {
+  SELECT t0_2.c
+    FROM (SELECT '0000' AS c0 FROM empty2 RIGHT JOIN t0_1 ON 1) AS v0 
+    LEFT JOIN empty1 ON v0.c0, t0_2 
+    RIGHT JOIN (
+           SELECT 5678 AS col0 FROM (SELECT 0)
+    ) AS sub1 ON 1;
+} {1}
+
+do_execsql_test 7.2 {
+  SELECT t0_2.c
+    FROM (SELECT '0000' AS c0 FROM empty2 RIGHT JOIN t0_1 ON 1) AS v0 
+    LEFT JOIN empty1 ON v0.c0, t0_2 
+    RIGHT JOIN (
+           SELECT 5678 AS col0 FROM (SELECT 0)
+    ) AS sub1 ON 1 WHERE +t0_2.c;
+} {1}
+
+finish_test
diff --git a/test/queryonly.test b/test/queryonly.test
new file mode 100644
index 0000000000000000000000000000000000000000..2774e5d4360614efca93a22fa961c0912a3ae667
--- /dev/null
+++ b/test/queryonly.test
@@ -0,0 +1,72 @@
+# 2013-07-11
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file tests the "query_only" pragma.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_execsql_test queryonly-1.1 {
+  CREATE TABLE t1(a);
+  INSERT INTO t1 VALUES(123),(456);
+  SELECT a FROM t1 ORDER BY a;
+} {123 456}
+do_execsql_test queryonly-1.2 {
+  PRAGMA query_only;
+} {0}
+do_execsql_test queryonly-1.3 {
+  PRAGMA query_only=ON;
+  PRAGMA query_only;
+} {1}
+do_test queryonly-1.4 {
+  catchsql {INSERT INTO t1 VALUES(789);}
+} {1 {attempt to write a readonly database}}
+do_test queryonly-1.5 {
+  catchsql {DELETE FROM t1;}
+} {1 {attempt to write a readonly database}}
+do_test queryonly-1.6 {
+  catchsql {UPDATE t1 SET a=a+1;}
+} {1 {attempt to write a readonly database}}
+do_test queryonly-1.7 {
+  catchsql {CREATE TABLE t2(b);}
+} {1 {attempt to write a readonly database}}
+do_test queryonly-1.8 {
+  catchsql {CREATE INDEX t1a ON t1(a);}
+} {1 {attempt to write a readonly database}}
+do_test queryonly-1.9 {
+  catchsql {DROP TABLE t1;}
+} {1 {attempt to write a readonly database}}
+do_test queryonly-1.10 {
+  catchsql {ANALYZE;}
+} {1 {attempt to write a readonly database}}
+do_execsql_test queryonly-1.11 {
+  SELECT a FROM t1 ORDER BY a;
+} {123 456}
+
+do_execsql_test queryonly-2.2 {
+  PRAGMA query_only;
+} {1}
+do_execsql_test queryonly-2.3 {
+  PRAGMA query_only=OFF;
+  PRAGMA query_only;
+} {0}
+do_execsql_test queryonly-2.4 {
+  INSERT INTO t1 VALUES(789);
+  SELECT a FROM t1 ORDER BY a;
+} {123 456 789}
+do_execsql_test queryonly-2.5 {
+  UPDATE t1 SET a=a+1;
+  SELECT a FROM t1 ORDER BY a;
+} {124 457 790}
+
+finish_test
diff --git a/test/quick.test b/test/quick.test
new file mode 100644
index 0000000000000000000000000000000000000000..974b02de97de2af4468b92991026e5200c67d905
--- /dev/null
+++ b/test/quick.test
@@ -0,0 +1,15 @@
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file runs all tests.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/permutations.test
+
+run_test_suite quick
+
+finish_test
diff --git a/test/quickcheck.test b/test/quickcheck.test
new file mode 100644
index 0000000000000000000000000000000000000000..18c42a13d09f7e26705540be2ed5edfab9dd9d89
--- /dev/null
+++ b/test/quickcheck.test
@@ -0,0 +1,33 @@
+# 2023 January 28
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix quickcheck
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(
+    a INTEGER NOT NULL, b INTEGER NOT NULL, c AS (a+1),
+    PRIMARY KEY(b, a)
+  ) WITHOUT ROWID;
+
+  INSERT INTO t1 VALUES(1, 2);
+  INSERT INTO t1 VALUES(3, 4);
+}
+
+do_execsql_test 1.1 {
+  PRAGMA quick_check
+} {
+  ok
+}
+
+finish_test
diff --git a/test/quota-glob.test b/test/quota-glob.test
new file mode 100644
index 0000000000000000000000000000000000000000..28c813c30f27b71b2f50c012e5dd57d725c8fc69
--- /dev/null
+++ b/test/quota-glob.test
@@ -0,0 +1,87 @@
+# 2011 December 1
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests for the glob-style string compare operator embedded in the
+# quota shim.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+catch { unset testnum }
+catch { unset pattern }
+catch { unset text }
+catch { unset ans }
+
+foreach {testnum pattern text ans} {
+   1  abcdefg   abcdefg   1
+   2  abcdefG   abcdefg   0
+   3  abcdef    abcdefg   0
+   4  abcdefgh  abcdefg   0
+   5  abcdef?   abcdefg   1
+   6  abcdef?   abcdef    0
+   7  abcdef?   abcdefgh  0
+   8  abcdefg   abcdef?   0
+   9  abcdef?   abcdef?   1
+  10  abc/def   abc/def   1
+  11  abc//def  abc/def   0
+  12  */abc/*   x/abc/y   1
+  13  */abc/*   /abc/     1
+  16  */abc/*   x///a/ab/abc   0
+  17  */abc/*   x//a/ab/abc/   1
+  16  */abc/*   x///a/ab/abc   0
+  17  */abc/*   x//a/ab/abc/   1
+  18  **/abc/** x//a/ab/abc/   1
+  19  *?/abc/*? x//a/ab/abc/y  1
+  20  ?*/abc/?* x//a/ab/abc/y  1
+  21  {abc[cde]efg}   abcbefg  0
+  22  {abc[cde]efg}   abccefg  1
+  23  {abc[cde]efg}   abcdefg  1
+  24  {abc[cde]efg}   abceefg  1
+  25  {abc[cde]efg}   abcfefg  0
+  26  {abc[^cde]efg}  abcbefg  1
+  27  {abc[^cde]efg}  abccefg  0
+  28  {abc[^cde]efg}  abcdefg  0
+  29  {abc[^cde]efg}  abceefg  0
+  30  {abc[^cde]efg}  abcfefg  1
+  31  {abc[c-e]efg}   abcbefg  0
+  32  {abc[c-e]efg}   abccefg  1
+  33  {abc[c-e]efg}   abcdefg  1
+  34  {abc[c-e]efg}   abceefg  1
+  35  {abc[c-e]efg}   abcfefg  0
+  36  {abc[^c-e]efg}  abcbefg  1
+  37  {abc[^c-e]efg}  abccefg  0
+  38  {abc[^c-e]efg}  abcdefg  0
+  39  {abc[^c-e]efg}  abceefg  0
+  40  {abc[^c-e]efg}  abcfefg  1
+  41  {abc[c-e]efg}   abc-efg  0
+  42  {abc[-ce]efg}   abc-efg  1
+  43  {abc[ce-]efg}   abc-efg  1
+  44  {abc[][*?]efg}  {abc]efg} 1
+  45  {abc[][*?]efg}  {abc*efg} 1
+  46  {abc[][*?]efg}  {abc?efg} 1
+  47  {abc[][*?]efg}  {abc[efg} 1
+  48  {abc[^][*?]efg} {abc]efg} 0
+  49  {abc[^][*?]efg} {abc*efg} 0
+  50  {abc[^][*?]efg} {abc?efg} 0
+  51  {abc[^][*?]efg} {abc[efg} 0
+  52  {abc[^][*?]efg} {abcdefg} 1
+  53  {*[xyz]efg}     {abcxefg} 1
+  54  {*[xyz]efg}     {abcwefg} 0
+} {
+  do_test quota-glob-$testnum.1 {
+    sqlite3_quota_glob $::pattern $::text
+  } $::ans
+  do_test quota-glob-$testnum.2 {
+    sqlite3_quota_glob $::pattern [string map {/ \\} $::text]
+  } $::ans
+}
+finish_test
diff --git a/test/quota.test b/test/quota.test
new file mode 100644
index 0000000000000000000000000000000000000000..5d0bda3ad3b27386f21d7a7d8d1cd0d6b412dd01
--- /dev/null
+++ b/test/quota.test
@@ -0,0 +1,532 @@
+# 2010 September 1
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If SQLITE_CURDIR is not defined, omit this file.
+ifcapable !curdir {
+  finish_test
+  return
+}
+
+source $testdir/malloc_common.tcl
+
+forcedelete bak.db
+unset -nocomplain defaultVfs
+set defaultVfs [file_control_vfsname db]
+db close
+
+do_test quota-1.1 { sqlite3_quota_initialize nosuchvfs 1 } {SQLITE_ERROR}
+do_test quota-1.2 { sqlite3_quota_initialize "" 1 }        {SQLITE_OK}
+do_test quota-1.3 { sqlite3_quota_initialize "" 1 }        {SQLITE_MISUSE}
+do_test quota-1.4 { sqlite3_quota_shutdown }               {SQLITE_OK}
+
+do_test quota-1.5 { sqlite3_quota_initialize "" 0 }        {SQLITE_OK}
+do_test quota-1.6 { sqlite3_quota_shutdown }               {SQLITE_OK}
+do_test quota-1.7 { sqlite3_quota_initialize "" 1 }        {SQLITE_OK}
+do_test quota-1.8 { sqlite3_quota_shutdown }               {SQLITE_OK}
+
+
+#-------------------------------------------------------------------------
+# Some simple warm-body tests with a single database file in rollback 
+# mode:
+#
+#   quota-2.1.*: Test that SQLITE_FULL is returned if the database would
+#                exceed the configured quota.
+#
+#   quota-2.2.*: Test that SQLITE_FULL is not returned and the database
+#                grows if the callback extends the quota when the database
+#                attempts to grow beyond the configured quota.
+#
+#   quota-2.3.*: Open and close a db that is not part of any quota group. At
+#                one point this was causing mutex refs to be leaked.
+#
+#   quota-2.4.*: Try to shutdown the quota system before closing the db
+#                file. Check that this fails and the quota system still works
+#                afterwards. Then close the database and successfully shut
+#                down the quota system.
+#   
+sqlite3_quota_initialize "" 1
+
+unset -nocomplain quota_request_ok
+proc quota_check {filename limitvar size} {
+  upvar $limitvar limit
+
+  lappend ::quota [set limit] $size
+  if {[info exists ::quota_request_ok]} { set limit $size }
+}
+
+do_test quota-2.1.1 {
+  sqlite3_quota_set *test.db 4096 quota_check
+} {SQLITE_OK}
+do_test quota-2.1.2 {
+  sqlite3 db test.db
+  execsql {
+    PRAGMA page_size=1024;
+    PRAGMA auto_vacuum=OFF;
+    PRAGMA journal_mode=DELETE;
+  }
+  set ::quota [list]
+  execsql {
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, randomblob(1100));
+    INSERT INTO t1 VALUES(2, randomblob(1100));
+  }
+  set ::quota
+} {}
+do_test quota-2.1.2.1 {
+  file_control_vfsname db
+} quota/$defaultVfs
+do_test quota-2.1.3 { file size test.db } {4096}
+do_test quota-2.1.4 {
+  catchsql { INSERT INTO t1 VALUES(3, randomblob(1100)) }
+} {1 {database or disk is full}}
+do_test quota-2.1.5 { set ::quota } {4096 5120}
+
+set ::quota_request_ok 1
+set ::quota [list]
+do_test quota-2.2.1 {
+  execsql { INSERT INTO t1 VALUES(3, randomblob(1100)) }
+} {}
+do_test quota-2.2.2 { set ::quota } {4096 5120}
+do_test quota-2.2.3 { file size test.db } {5120}
+unset ::quota_request_ok
+
+do_test quota-2.3.1 {
+  sqlite3 db2 bak.db
+  db2 close
+} {}
+
+do_test quota-2.4.1 {
+  sqlite3_quota_shutdown
+} {SQLITE_MISUSE}
+set ::quota [list]
+do_test quota-2.4.2 {
+  catchsql { INSERT INTO t1 VALUES(3, randomblob(1100)) }
+} {1 {database or disk is full}}
+do_test quota-2.4.3 { set ::quota } {5120 6144}
+do_test quota-2.4.4 { file size test.db } {5120}
+do_test quota-2.4.99 {
+  db close
+  sqlite3_quota_shutdown
+} {SQLITE_OK}
+
+#-------------------------------------------------------------------------
+# Try some tests with more than one connection to a database file. Still
+# in rollback mode.
+#
+#   quota-3.1.*: Two connections to a single database file.
+#
+#   quota-3.2.*: Two connections to each of several database files (that
+#                are in the same quota group).
+#
+proc quota_check {filename limitvar size} {
+  upvar $limitvar limit
+  lappend ::quota [set limit] $size
+  if {[info exists ::quota_request_ok]} { set limit $size }
+}
+
+do_test quota-3.1.1 {
+  forcedelete test.db
+  sqlite3_quota_initialize "" 1
+  sqlite3_quota_set *test.db 4096 quota_check
+} {SQLITE_OK}
+do_test quota-3.1.2 {
+  sqlite3 db test.db
+  execsql {
+    PRAGMA page_size = 1024;
+    PRAGMA journal_mode = delete;
+    PRAGMA auto_vacuum = off;
+    CREATE TABLE t1(a PRIMARY KEY, b);
+    INSERT INTO t1 VALUES(1, 'one');
+  }
+  file size test.db
+} {3072}
+do_test quota-3.1.3 {
+  sqlite3 db2 test.db
+  set ::quota [list]
+  execsql { CREATE TABLE t2(a, b) } db2
+  set ::quota
+} {}
+do_test quota-3.1.4 {
+  catchsql { CREATE TABLE t3(a, b) }
+} {1 {database or disk is full}}
+do_test quota-3.1.5 {
+  set ::quota_request_ok 1
+  execsql { CREATE TABLE t3(a, b) }
+} {}
+do_test quota-3.1.6 {
+  db close
+  db2 close
+  sqlite3_quota_set *test.db 0 {}
+} {SQLITE_OK}
+
+do_test quota-3.2.1 {
+  delete_file force test.db test2.db 
+
+  sqlite3_quota_set * 4096 {}
+  sqlite3 db1a test.db
+  sqlite3 db2a test2.db
+
+  foreach db {db1a db2a} {
+    execsql {
+      PRAGMA page_size = 1024;
+      PRAGMA journal_mode = delete;
+      PRAGMA auto_vacuum = off;
+      CREATE TABLE t1(a, b);
+    } $db
+  }
+
+  sqlite3 db1b test.db
+  sqlite3 db2b test2.db
+
+  list [file size test.db] [file size test2.db]
+} {2048 2048}
+
+catch { unset ::quota_request_ok }
+
+do_test quota-3.2.2 { execsql { INSERT INTO t1 VALUES('x', 'y') } db1a } {}
+do_test quota-3.2.3 { execsql { INSERT INTO t1 VALUES('v', 'w') } db1b } {}
+do_test quota-3.2.4 { execsql { INSERT INTO t1 VALUES('t', 'u') } db2a } {}
+do_test quota-3.2.5 { execsql { INSERT INTO t1 VALUES('r', 's') } db2b } {}
+
+do_test quota-3.2.6 { 
+  catchsql { INSERT INTO t1 VALUES(randomblob(500), randomblob(500)) } db1a
+} {1 {database or disk is full}}
+do_test quota-3.2.7 { 
+  catchsql { INSERT INTO t1 VALUES(randomblob(500), randomblob(500)) } db1b
+} {1 {database or disk is full}}
+do_test quota-3.2.8 { 
+  catchsql { INSERT INTO t1 VALUES(randomblob(500), randomblob(500)) } db2a
+} {1 {database or disk is full}}
+do_test quota-3.2.9 { 
+  catchsql { INSERT INTO t1 VALUES(randomblob(500), randomblob(500)) } db2b
+} {1 {database or disk is full}}
+
+set ::quota [list]
+proc quota_callback {file limitvar size} {
+  upvar $limitvar limit
+  if {$::tcl_platform(platform)=="windows"} {
+    set file [ lindex [string map {\\ \/} $file] 0 ]
+  }
+  lappend ::quota $file $size
+  set limit 0
+}
+sqlite3_quota_set * 4096 quota_callback
+do_test quota-3.3.1 { 
+  execsql { INSERT INTO t1 VALUES(randomblob(500), randomblob(500)) } db1a
+  execsql { INSERT INTO t1 VALUES(randomblob(500), randomblob(500)) } db1b
+  execsql { INSERT INTO t1 VALUES(randomblob(500), randomblob(500)) } db2a
+  execsql { INSERT INTO t1 VALUES(randomblob(500), randomblob(500)) } db2b
+  set ::quota
+} [list [file join [get_pwd] test.db] 5120]
+
+do_test quota-3.2.X {
+  foreach db {db1a db2a db2b db1b} { catch { $db close } }
+  sqlite3_quota_set * 0 {}
+} {SQLITE_OK}
+
+#-------------------------------------------------------------------------
+# Quotas are deleted when unused and when their limit is set to zero
+#
+
+# Return a list of all currently defined quotas.  Each quota is identified
+# by its pattern.
+proc quota_list {} {
+  set allq {}
+  foreach q [sqlite3_quota_dump] {
+    lappend allq [lindex $q 0]
+  }
+  return [lsort $allq]
+}
+proc quota_size {name} {
+  set allq {}
+  foreach q [sqlite3_quota_dump] {
+    if {[lindex $q 0]==$name} {return [lindex $q 2]}
+  }
+  return 0
+}
+
+do_test quota-4.1.1 {
+  sqlite3_quota_set *test.db 0 {}
+  quota_list
+} {}
+do_test quota-4.1.2 {
+  sqlite3_quota_set *test.db 4096 {}
+  quota_list
+} {*test.db}
+do_test quota-4.1.3 {
+  sqlite3_quota_set *test2.db 0 {}
+  quota_list
+} {*test.db}
+do_test quota-4.1.4 {
+  sqlite3_quota_set *test2.db 100000 {}
+  quota_list
+} {*test.db *test2.db}
+do_test quota-4.1.5 {
+  sqlite3_quota_set *test.db 0 {}
+  quota_list
+} {*test2.db}
+do_test quota-4.1.6 {
+  forcedelete test2.db test2.db-journal test2.db-wal
+  sqlite3 db test2.db
+  db eval {CREATE TABLE t2(x); INSERT INTO t2 VALUES('tab-t2');}
+  quota_list
+} {*test2.db}
+do_test quota-4.1.7 {
+  catchsql {INSERT INTO t2 VALUES(zeroblob(200000))}
+} {1 {database or disk is full}}
+do_test quota-4.1.8 {
+  sqlite3 db2 test2.db
+  db2 eval {SELECT * FROM t2}
+} {tab-t2}
+do_test quota-4.1.9 {
+  sqlite3_quota_set *test2.db 0 {}
+  catchsql {INSERT INTO t2 VALUES(zeroblob(200000))}
+} {0 {}}
+do_test quota-4.1.10 {
+  quota_list
+} {*test2.db}
+do_test quota-4.1.11 {
+  db2 close
+  quota_list
+} {*test2.db}
+do_test quota-4.1.12 {
+  db close
+  quota_list
+} {}
+
+do_test quota-4.2.1 {
+  sqlite3_quota_set A 1000 {}
+  sqlite3_quota_set B 1000 {}
+  sqlite3_quota_set C 1000 {}
+  sqlite3_quota_set D 1000 {}
+  quota_list
+} {A B C D}
+do_test quota-4.2.2 {
+  sqlite3_quota_set C 0 {}
+  sqlite3_quota_set B 0 {}
+  quota_list
+} {A D}
+do_test quota-4.2.3 {
+  sqlite3_quota_set A 0 {}
+  sqlite3_quota_set D 0 {}
+  quota_list
+} {}
+do_test quota-4.2.4 {
+  sqlite3_quota_set A 1000 {}
+  sqlite3_quota_set B 1000 {}
+  sqlite3_quota_set C 1000 {}
+  sqlite3_quota_set A 0 {}
+  sqlite3_quota_set B 0 {}
+  sqlite3_quota_set C 0 {}
+  quota_list
+} {}
+do_test quota-4.2.5 {
+  sqlite3_quota_set A 1000 {}
+  sqlite3_quota_set B 1000 {}
+  sqlite3_quota_set C 1000 {}
+  sqlite3_quota_set C 0 {}
+  sqlite3_quota_set B 0 {}
+  sqlite3_quota_set A 0 {}
+  quota_list
+} {}
+
+do_test quota-4.3.1 {
+  sqlite3_quota_set A 1000 quota_callback
+  sqlite3 db A
+  sqlite3_quota_set A 0 quota_callback
+  db close
+  quota_list
+} {}
+
+unset -nocomplain quotagroup
+if {$tcl_platform(platform)=="windows"} {
+  set quotagroup *\\quota-test-A?.db
+} else {
+  set quotagroup */quota-test-A?.db
+} 
+foreach file [glob -nocomplain quota-test-A*] {
+  forcedelete $file
+}
+do_test quota-4.4.1 {
+  set ::quota {}
+  sqlite3_quota_set $::quotagroup 10000 quota_callback
+  forcedelete ./quota-test-A1.db ./quota-test-A2.db
+  sqlite3 db ./quota-test-A1.db
+  db eval {
+     CREATE TABLE t1(x);
+     INSERT INTO t1 VALUES(randomblob(5000));
+  }
+  quota_list
+} [list $quotagroup]
+do_test quota-4.4.2 {
+  expr {$::quota==""}
+} {1}
+do_test quota-4.4.3 {
+  db close
+  sqlite3 db ./quota-test-A2.db
+  db eval {
+     CREATE TABLE t1(x);
+     INSERT INTO t1 VALUES(randomblob(5000));
+  }
+  quota_list
+} [list $quotagroup]
+do_test quota-4.4.4 {
+  expr {$::quota!=""}
+} {1}
+do_test quota-4.4.5 {
+  db close
+  sqlite3_quota_set $::quotagroup 0 {}
+  sqlite3_quota_dump
+} {}
+do_test quota-4.4.6 {
+  sqlite3_quota_set $quotagroup 10000 quota_callback
+  sqlite3 db quota-test-A1.db
+  db eval {SELECT count(*) FROM sqlite_master}
+  quota_size $quotagroup
+} [file size quota-test-A1.db]
+do_test quota-4.4.7 {
+  sqlite3_quota_file quota-test-A2.db
+  quota_size $::quotagroup
+} [expr {[file size quota-test-A1.db]+[file size quota-test-A2.db]}]
+
+unset -nocomplain quotagroup
+if {$tcl_platform(platform)=="windows"} {
+  set quotagroup *\\quota-test-B*
+} else {
+  set quotagroup */quota-test-B*
+} 
+foreach file [glob -nocomplain quota-test-B*] {
+  forcedelete $file
+}
+do_test quota-4.5.1 {
+  sqlite3_quota_set $::quotagroup 100000 quota_callback
+  quota_size $::quotagroup
+} {0}
+do_test quota-4.5.2 {
+  sqlite3_quota_file quota-test-B1.txt
+  quota_size $::quotagroup
+} {0}
+proc add_to_file {name n} {
+  set out [open $name a]
+  fconfigure $out -translation binary
+  puts -nonewline $out [string repeat x $n]
+  close $out
+}
+do_test quota-4.5.3 {
+  add_to_file quota-test-B1.txt 123
+  sqlite3_quota_file quota-test-B1.txt
+  quota_size $::quotagroup
+} {123}
+do_test quota-4.5.4 {
+  add_to_file quota-test-B2.txt 234
+  sqlite3_quota_file quota-test-B2.txt
+  quota_size $::quotagroup
+} {357}
+do_test quota-4.5.5 {
+  add_to_file quota-test-B1.txt 2000
+  sqlite3_quota_file quota-test-B1.txt
+  quota_size $::quotagroup
+} {2357}
+do_test quota-4.5.6 {
+  forcedelete quota-test-B1.txt
+  sqlite3_quota_file quota-test-B1.txt
+  quota_size $::quotagroup
+} {234}
+do_test quota-4.5.7 {
+  forcedelete quota-test-B2.txt
+  sqlite3_quota_file quota-test-B2.txt
+  quota_size $::quotagroup
+} {0}
+do_test quota-4.5.8 {
+  add_to_file quota-test-B3.txt 1234
+  sqlite3_quota_file quota-test-B3.txt
+  quota_size $::quotagroup
+} {1234}
+do_test quota-4.5.9 {
+  sqlite3_quota_set $quotagroup 0 {}
+  quota_size $::quotagroup
+} {0}
+
+do_test quota-4.9.1 {
+  db close
+  sqlite3_quota_set A 1000 quota_callback
+  sqlite3_quota_shutdown
+} {SQLITE_OK}
+do_test quota-4.9.2 {
+  quota_list
+} {}
+
+#-------------------------------------------------------------------------
+# The following tests test that the quota VFS handles malloc and IO 
+# errors.
+#
+
+sqlite3_quota_initialize "" 1
+sqlite3_quota_set *test.db 4096 {}
+
+do_faultsim_test quota-5.1 -prep {
+  catch {db close}
+} -body {
+  sqlite3 db test2.db
+}
+do_faultsim_test quota-5.2 -prep {
+  catch {db close}
+} -body {
+  sqlite3 db test.db
+}
+
+catch { db close }
+forcedelete test.db
+
+do_test quota-5.3.prep {
+  sqlite3 db test.db
+  execsql {
+    PRAGMA auto_vacuum = 1;
+    PRAGMA page_size = 1024;
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(10, zeroblob(1200));
+  }
+  faultsim_save_and_close
+} {}
+do_faultsim_test quota-5.3 -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { DELETE FROM t1 }
+}
+
+do_test quota-5.4.1 {
+  catch { db close }
+  forcedelete test.db
+  file mkdir test.db
+  list [catch { sqlite3 db test.db } msg] $msg
+} {1 {unable to open database file}}
+
+do_faultsim_test quota-5.5 -prep {
+  catch { sqlite3_quota_shutdown }
+} -body {
+  sqlite3_quota_initialize "" 1
+}
+
+do_faultsim_test quota-5.6 -prep {
+  catch { sqlite3_quota_shutdown }
+  sqlite3_quota_initialize "" 1
+} -body {
+  sqlite3_quota_set * 4096 {}
+}
+
+catch { sqlite3_quota_shutdown }
+catch { db close }
+forcedelete test.db
+finish_test
diff --git a/test/quota2.test b/test/quota2.test
new file mode 100644
index 0000000000000000000000000000000000000000..8682bd86a331441e1b496b0201bd88b4600ba3db
--- /dev/null
+++ b/test/quota2.test
@@ -0,0 +1,302 @@
+# 2011 December 1
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If SQLITE_CURDIR is not defined, omit this file.
+ifcapable !curdir {
+  finish_test
+  return
+}
+
+source $testdir/malloc_common.tcl
+
+db close
+sqlite3_quota_initialize "" 1
+
+foreach dir {quota2a/x1 quota2a/x2 quota2a quota2b quota2c} {
+  forcedelete $dir
+}
+foreach dir {quota2a quota2a/x1 quota2a/x2 quota2b quota2c} {
+  file mkdir $dir
+}
+
+# The standard_path procedure converts a pathname into a standard format
+# that is the same across platforms.
+#
+unset -nocomplain ::quota_pwd ::quota_mapping
+set ::quota_pwd [string map {\\ /} [get_pwd]]
+set ::quota_mapping [list $::quota_pwd PWD]
+proc standard_path {x} {
+  set x [string map {\\ /} $x]
+  return [string map $::quota_mapping $x]
+}
+
+# The quota_check procedure is a callback from the quota handler.
+# It has three arguments which are (1) the full pathname of the file
+# that has gone over quota, (2) the quota limit, (3) the requested
+# new quota size to cover the last write.  These three values are
+# appended to the global variable $::quota.  The filename is processed
+# to convert every \ character into / and to change the name of the
+# working directory to PWD.  
+#
+# The quota is increased to the request if the ::quota_request_ok 
+# global variable is true.
+#
+set ::quota {}
+set ::quota_request_ok 0
+
+proc quota_check {filename limitvar size} {
+  upvar $limitvar limit
+  lappend ::quota [standard_path $filename] [set limit] $size
+  if {$::quota_request_ok} {set limit $size}
+}
+
+sqlite3_quota_set */quota2a/* 4000 quota_check
+sqlite3_quota_set */quota2b/* 5000 quota_check
+
+unset -nocomplain bigtext
+for {set i 1} {$i<=1000} {incr i} {
+  if {$i%10==0} {
+    append bigtext [format "%06d\n" $i]
+  } else {
+    append bigtext [format "%06d " $i]
+  }
+}
+
+catch { unset h1 }
+catch { unset x }
+do_test quota2-1.1 {
+  set ::h1 [sqlite3_quota_fopen quota2a/xyz.txt w+b]
+  sqlite3_quota_fwrite $::h1 1 7000 $bigtext
+} {4000}
+do_test quota2-1.2 {
+  set ::quota
+} {PWD/quota2a/xyz.txt 4000 7000}
+do_test quota2-1.2.1 {
+  sqlite3_quota_file_size $::h1
+} {4000}
+do_test quota2-1.2.2 {
+  sqlite3_quota_fflush $::h1 1
+  sqlite3_quota_file_truesize $::h1
+} {4000}
+do_test quota2-1.3 {
+  sqlite3_quota_rewind $::h1
+  set ::x [sqlite3_quota_fread $::h1 1001 7]
+  string length $::x
+} {3003}
+do_test quota2-1.4 {
+  string match $::x [string range $::bigtext 0 3002]
+} {1}
+do_test quota2-1.5 {
+  sqlite3_quota_fseek $::h1 0 SEEK_END
+  sqlite3_quota_ftell $::h1
+} {4000}
+do_test quota2-1.6 {
+  sqlite3_quota_fseek $::h1 -100 SEEK_END
+  sqlite3_quota_ftell $::h1
+} {3900}
+do_test quota2-1.7 {
+  sqlite3_quota_fseek $::h1 -100 SEEK_CUR
+  sqlite3_quota_ftell $::h1
+} {3800}
+do_test quota2-1.8 {
+  sqlite3_quota_fseek $::h1 50 SEEK_CUR
+  sqlite3_quota_ftell $::h1
+} {3850}
+do_test quota2-1.9 {
+  sqlite3_quota_fseek $::h1 50 SEEK_SET
+  sqlite3_quota_ftell $::h1
+} {50}
+do_test quota2-1.10 {
+  sqlite3_quota_rewind $::h1
+  sqlite3_quota_ftell $::h1
+} {0}
+do_test quota2-1.11 {
+  standard_path [sqlite3_quota_dump]
+} {{*/quota2b/* 5000 0} {*/quota2a/* 4000 4000 {PWD/quota2a/xyz.txt 4000 1 0}}}
+do_test quota2-1.12 {
+  sqlite3_quota_ftruncate $::h1 3500
+  sqlite3_quota_file_size $::h1
+} {3500}
+do_test quota2-1.13 {
+  sqlite3_quota_file_truesize $::h1
+} {3500}
+do_test quota2-1.14 {
+  standard_path [sqlite3_quota_dump]
+} {{*/quota2b/* 5000 0} {*/quota2a/* 4000 3500 {PWD/quota2a/xyz.txt 3500 1 0}}}
+do_test quota2-1.15 {
+  sqlite3_quota_fseek $::h1 0 SEEK_END
+  sqlite3_quota_ftell $::h1
+} {3500}
+do_test quota2-1.16 {
+  sqlite3_quota_fwrite $::h1 1 7000 $bigtext
+} {500}
+do_test quota2-1.17 {
+  sqlite3_quota_ftell $::h1
+} {4000}
+do_test quota2-1.18 {
+  sqlite3_quota_file_size $::h1
+} {4000}
+do_test quota2-1.19 {
+  sqlite3_quota_fflush $::h1 1
+  sqlite3_quota_file_truesize $::h1
+} {4000}
+do_test quota2-1.20 {
+  sqlite3_quota_fclose $::h1
+  standard_path [sqlite3_quota_dump]
+} {{*/quota2b/* 5000 0} {*/quota2a/* 4000 4000 {PWD/quota2a/xyz.txt 4000 0 0}}}
+do_test quota2-1.21 {
+  sqlite3_quota_remove quota2a/xyz.txt
+  standard_path [sqlite3_quota_dump]
+} {{*/quota2b/* 5000 0} {*/quota2a/* 4000 0}}
+
+
+
+set quota {}
+do_test quota2-2.1 {
+  set ::h1 [sqlite3_quota_fopen quota2c/xyz.txt w+b]
+  sqlite3_quota_fwrite $::h1 1 7000 $bigtext
+} {7000}
+do_test quota2-2.2 {
+  set ::quota
+} {}
+do_test quota2-2.3.1 {
+  sqlite3_quota_rewind $::h1
+  sqlite3_quota_file_available $::h1
+} {7000}
+do_test quota2-2.3.2 {
+  set ::x [sqlite3_quota_fread $::h1 1001 7]
+  string length $::x
+} {6006}
+do_test quota2-2.3.3 {
+  sqlite3_quota_file_available $::h1
+} {0}
+do_test quota2-2.4 {
+  string match $::x [string range $::bigtext 0 6005]
+} {1}
+do_test quota2-2.5 {
+  sqlite3_quota_fseek $::h1 0 SEEK_END
+  sqlite3_quota_ftell $::h1
+} {7000}
+do_test quota2-2.6 {
+  sqlite3_quota_fseek $::h1 -100 SEEK_END
+  sqlite3_quota_ftell $::h1
+} {6900}
+do_test quota2-2.6.1 {
+  sqlite3_quota_file_available $::h1
+} {100}
+do_test quota2-2.7 {
+  sqlite3_quota_fseek $::h1 -100 SEEK_CUR
+  sqlite3_quota_ftell $::h1
+} {6800}
+do_test quota2-2.7.1 {
+  sqlite3_quota_file_available $::h1
+} {200}
+do_test quota2-2.8 {
+  sqlite3_quota_fseek $::h1 50 SEEK_CUR
+  sqlite3_quota_ftell $::h1
+} {6850}
+do_test quota2-2.8.1 {
+  sqlite3_quota_file_available $::h1
+} {150}
+do_test quota2-2.9 {
+  sqlite3_quota_fseek $::h1 50 SEEK_SET
+  sqlite3_quota_ftell $::h1
+} {50}
+do_test quota2-2.9.1 {
+  sqlite3_quota_file_available $::h1
+} {6950}
+do_test quota2-2.10 {
+  sqlite3_quota_rewind $::h1
+  sqlite3_quota_ftell $::h1
+} {0}
+do_test quota2-2.10.1 {
+  sqlite3_quota_file_available $::h1
+} {7000}
+do_test quota2-2.10.2 {
+  sqlite3_quota_ferror $::h1
+} {0}
+do_test quota2-2.11 {
+  standard_path [sqlite3_quota_dump]
+} {{*/quota2b/* 5000 0} {*/quota2a/* 4000 0}}
+do_test quota2-2.12 {
+  sqlite3_quota_fclose $::h1
+  standard_path [sqlite3_quota_dump]
+} {{*/quota2b/* 5000 0} {*/quota2a/* 4000 0}}
+
+do_test quota2-3.1 {
+  sqlite3_quota_set */quota2b/* 0 quota_check
+  set ::h1 [sqlite3_quota_fopen quota2a/x1/a.txt a]
+  sqlite3_quota_fwrite $::h1 10 10 $bigtext
+} {10}
+do_test quota2-3.2 {
+  standard_path [sqlite3_quota_dump]
+} {{*/quota2a/* 4000 100 {PWD/quota2a/x1/a.txt 100 1 0}}}
+do_test quota2-3.3a {
+  sqlite3_quota_fflush $::h1 0
+  standard_path [sqlite3_quota_dump]
+} {{*/quota2a/* 4000 100 {PWD/quota2a/x1/a.txt 100 1 0}}}
+do_test quota2-3.3b {
+  sqlite3_quota_fflush $::h1 1
+  standard_path [sqlite3_quota_dump]
+} {{*/quota2a/* 4000 100 {PWD/quota2a/x1/a.txt 100 1 0}}}
+do_test quota2-3.3c {
+  sqlite3_quota_fflush $::h1
+  standard_path [sqlite3_quota_dump]
+} {{*/quota2a/* 4000 100 {PWD/quota2a/x1/a.txt 100 1 0}}}
+do_test quota2-3.4 {
+  sqlite3_quota_fclose $::h1
+  standard_path [sqlite3_quota_dump]
+} {{*/quota2a/* 4000 100 {PWD/quota2a/x1/a.txt 100 0 0}}}
+do_test quota2-3.5 {
+  set ::h2 [sqlite3_quota_fopen quota2a/x2/b.txt a]
+  sqlite3_quota_fwrite $::h2 10 20 $bigtext
+  standard_path [sqlite3_quota_dump]
+} {{*/quota2a/* 4000 300 {PWD/quota2a/x2/b.txt 200 1 0} {PWD/quota2a/x1/a.txt 100 0 0}}}
+do_test quota2-3.6 {
+  set ::h3 [sqlite3_quota_fopen quota2a/x1/c.txt a]
+  sqlite3_quota_fwrite $::h3 10 50 $bigtext
+  standard_path [sqlite3_quota_dump]
+} {{*/quota2a/* 4000 800 {PWD/quota2a/x1/c.txt 500 1 0} {PWD/quota2a/x2/b.txt 200 1 0} {PWD/quota2a/x1/a.txt 100 0 0}}}
+do_test quota2-3.7 {
+  file exists quota2a/x1/a.txt
+} {1}
+do_test quota2-3.8 {
+  file exists quota2a/x2/b.txt
+} {1}
+do_test quota2-3.9 {
+  file exists quota2a/x1/c.txt
+} {1}
+do_test quota2-3.10 {
+  sqlite3_quota_remove quota2a/x1
+  standard_path [sqlite3_quota_dump]
+} {{*/quota2a/* 4000 700 {PWD/quota2a/x1/c.txt 500 1 1} {PWD/quota2a/x2/b.txt 200 1 0}}}
+do_test quota2-3.11 {
+  sqlite3_quota_fclose $::h2
+  sqlite3_quota_fclose $::h3
+  standard_path [sqlite3_quota_dump]
+} {{*/quota2a/* 4000 200 {PWD/quota2a/x2/b.txt 200 0 0}}}
+do_test quota2-3.12 {
+  file exists quota2a/x1/a.txt
+} {0}
+do_test quota2-3.13 {
+  file exists quota2a/x2/b.txt
+} {1}
+do_test quota2-3.14 {
+  file exists quota2a/x1/c.txt
+} {0}
+
+catch { sqlite3_quota_shutdown }
+catch { unset quota_request_ok }
+finish_test
diff --git a/test/quote.test b/test/quote.test
new file mode 100644
index 0000000000000000000000000000000000000000..4e40a9e57f6613dae7aa1881d4849ab8e5af741a
--- /dev/null
+++ b/test/quote.test
@@ -0,0 +1,186 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is the ability to specify table and column names
+# as quoted strings.
+#
+# $Id: quote.test,v 1.7 2007/04/25 11:32:30 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix quote
+
+# Create a table with a strange name and with strange column names.
+#
+do_test quote-1.0 {
+  catchsql {CREATE TABLE '@abc' ( '#xyz' int, '!pqr' text );}
+} {0 {}}
+
+# Insert, update and query the table.
+#
+do_test quote-1.1 {
+  catchsql {INSERT INTO '@abc' VALUES(5,'hello')}
+} {0 {}}
+do_test quote-1.2.1 {
+  catchsql {SELECT * FROM '@abc'}
+} {0 {5 hello}}
+do_test quote-1.2.2 {
+  catchsql {SELECT * FROM [@abc]}  ;# SqlServer compatibility
+} {0 {5 hello}}
+do_test quote-1.2.3 {
+  catchsql {SELECT * FROM `@abc`}  ;# MySQL compatibility
+} {0 {5 hello}}
+do_test quote-1.3 {
+  catchsql {
+    SELECT '@abc'.'!pqr', '@abc'.'#xyz'+5 FROM '@abc'
+  }
+} {0 {hello 10}}
+do_test quote-1.3.1 {
+  catchsql {
+    SELECT '!pqr', '#xyz'+5 FROM '@abc'
+  }
+} {0 {!pqr 5}}
+do_test quote-1.3.2 {
+  catchsql {
+    SELECT "!pqr", "#xyz"+5 FROM '@abc'
+  }
+} {0 {hello 10}}
+do_test quote-1.3.3 {
+  catchsql {
+    SELECT [!pqr], `#xyz`+5 FROM '@abc'
+  }
+} {0 {hello 10}}
+do_test quote-1.3.4 {
+  set r [catch {
+    execsql {SELECT '@abc'.'!pqr', '@abc'.'#xyz'+5 FROM '@abc'}
+  } msg ]
+  lappend r $msg
+} {0 {hello 10}}
+do_test quote-1.4 {
+  set r [catch {
+    execsql {UPDATE '@abc' SET '#xyz'=11}
+  } msg ]
+  lappend r $msg
+} {0 {}}
+do_test quote-1.5 {
+  set r [catch {
+    execsql {SELECT '@abc'.'!pqr', '@abc'.'#xyz'+5 FROM '@abc'}
+  } msg ]
+  lappend r $msg
+} {0 {hello 16}}
+
+# Drop the table with the strange name.
+#
+do_test quote-1.6 {
+  set r [catch {
+    execsql {DROP TABLE '@abc'}
+  } msg ]
+  lappend r $msg
+} {0 {}}
+
+#-------------------------------------------------------------------------
+# Check that it is not possible to use double-quotes for a string
+# constant in a CHECK constraint or CREATE INDEX statement. However, 
+# SQLite can load such a schema from disk.
+#
+reset_db 
+sqlite3_db_config db SQLITE_DBCONFIG_DQS_DDL 0
+sqlite3_db_config db SQLITE_DBCONFIG_DQS_DML 1
+do_execsql_test 2.0 {
+  CREATE TABLE t1(x, y, z);
+}
+foreach {tn sql errname} {
+  1 { CREATE TABLE xyz(a, b, c CHECK (c!="null") ) } null
+  2 { CREATE INDEX i2 ON t1(x, y, z||"abc") }        abc
+  3 { CREATE INDEX i3 ON t1("w") }                   w
+  4 { CREATE INDEX i4 ON t1(x) WHERE z="w" }         w
+} {
+  do_catchsql_test 2.1.$tn $sql [list 1 "no such column: \"$errname\" - should this be a string literal in single-quotes?"]
+}
+
+do_execsql_test 2.2 {
+  PRAGMA writable_schema = 1;
+  CREATE TABLE xyz(a, b, c CHECK (c!="null") );
+  CREATE INDEX i2 ON t1(x, y, z||"abc");
+  CREATE INDEX i3 ON t1("w"||"");
+  CREATE INDEX i4 ON t1(x) WHERE z="w";
+}
+
+db close
+sqlite3 db test.db
+
+do_execsql_test 2.3.1 {
+  INSERT INTO xyz VALUES(1, 2, 3);
+}
+do_catchsql_test 2.3.2 {
+  INSERT INTO xyz VALUES(1, 2, 'null');
+} {1 {CHECK constraint failed: c!="null"}}
+
+do_execsql_test 2.4 {
+  INSERT INTO t1 VALUES(1, 2, 3);
+  INSERT INTO t1 VALUES(4, 5, 'w');
+  SELECT * FROM t1 WHERE z='w';
+} {4 5 w}
+do_execsql_test 2.5 {
+  SELECT sql FROM sqlite_master;
+} {
+  {CREATE TABLE t1(x, y, z)}
+  {CREATE TABLE xyz(a, b, c CHECK (c!="null") )}
+  {CREATE INDEX i2 ON t1(x, y, z||"abc")}
+  {CREATE INDEX i3 ON t1("w"||"")}
+  {CREATE INDEX i4 ON t1(x) WHERE z="w"}
+}
+
+# 2021-03-13
+# ticket 1c24a659e6d7f3a1
+ifcapable altertable {
+  reset_db
+    do_catchsql_test 3.0 {
+      CREATE TABLE t1(a,b);
+      CREATE INDEX x1 on t1("b");
+      ALTER TABLE t1 DROP COLUMN b;
+    } {1 {error in index x1 after drop column: no such column: "b" - should this be a string literal in single-quotes?}}
+  do_catchsql_test 3.1 {
+    DROP TABLE t1;
+    CREATE TABLE t1(a,"b");
+    CREATE INDEX x1 on t1("b");
+    ALTER TABLE t1 DROP COLUMN b;
+  } {1 {error in index x1 after drop column: no such column: "b" - should this be a string literal in single-quotes?}}
+  do_catchsql_test 3.2 {
+    DROP TABLE t1;
+    CREATE TABLE t1(a,'b');
+    CREATE INDEX x1 on t1("b");
+    ALTER TABLE t1 DROP COLUMN b;
+  } {1 {error in index x1 after drop column: no such column: "b" - should this be a string literal in single-quotes?}}
+  do_catchsql_test 3.3 {
+    DROP TABLE t1;
+    CREATE TABLE t1(a,"b");
+    CREATE INDEX x1 on t1('b');
+    ALTER TABLE t1 DROP COLUMN b;
+  } {1 {error in index x1 after drop column: no such column: b}}
+  do_catchsql_test 3.4 {
+    DROP TABLE t1;
+    CREATE TABLE t1(a, b, c);
+    CREATE INDEX x1 ON t1("a"||"b");
+    INSERT INTO t1 VALUES(1,2,3),(1,4,5);
+    ALTER TABLE t1 DROP COLUMN b;
+  } {1 {error in index x1 after drop column: no such column: "b" - should this be a string literal in single-quotes?}}
+  sqlite3_db_config db SQLITE_DBCONFIG_DQS_DDL 1
+  do_catchsql_test 3.5 {
+    DROP TABLE t1;
+    CREATE TABLE t1(a, b, c);
+    CREATE INDEX x1 ON t1("a"||"x");
+    INSERT INTO t1 VALUES(1,2,3),(1,4,5);
+    ALTER TABLE t1 DROP COLUMN b;
+  } {0 {}}
+}
+
+finish_test
diff --git a/test/randexpr1.tcl b/test/randexpr1.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..37ebf531e8509ebd61fa8498a1ab4f8b0e743977
--- /dev/null
+++ b/test/randexpr1.tcl
@@ -0,0 +1,342 @@
+# Run this TCL script to generate thousands of test cases containing
+# complicated expressions.
+#
+# The generated tests are intended to verify expression evaluation
+# in SQLite against expression evaluation TCL.  
+#
+
+# Terms of the $intexpr list each contain two sub-terms.
+#
+#     *  An SQL expression template
+#     *  The equivalent TCL expression
+#
+# EXPR is replaced by an integer subexpression.  BOOL is replaced
+# by a boolean subexpression.
+#
+set intexpr {
+  {11 wide(11)}
+  {13 wide(13)}
+  {17 wide(17)}
+  {19 wide(19)}
+  {a $a}
+  {b $b}
+  {c $c}
+  {d $d}
+  {e $e}
+  {f $f}
+  {t1.a $a}
+  {t1.b $b}
+  {t1.c $c}
+  {t1.d $d}
+  {t1.e $e}
+  {t1.f $f}
+  {(EXPR) (EXPR)}
+  {{ -EXPR} {-EXPR}}
+  {+EXPR +EXPR}
+  {~EXPR ~EXPR}
+  {EXPR+EXPR EXPR+EXPR}
+  {EXPR-EXPR EXPR-EXPR}
+  {EXPR*EXPR EXPR*EXPR}
+  {EXPR+EXPR EXPR+EXPR}
+  {EXPR-EXPR EXPR-EXPR}
+  {EXPR*EXPR EXPR*EXPR}
+  {EXPR+EXPR EXPR+EXPR}
+  {EXPR-EXPR EXPR-EXPR}
+  {EXPR*EXPR EXPR*EXPR}
+  {{EXPR | EXPR} {EXPR | EXPR}}
+  {(abs(EXPR)/abs(EXPR)) (abs(EXPR)/abs(EXPR))}
+  {
+    {case when BOOL then EXPR else EXPR end}
+    {((BOOL)?EXPR:EXPR)}
+  }
+  {
+    {case when BOOL then EXPR when BOOL then EXPR else EXPR end}
+    {((BOOL)?EXPR:((BOOL)?EXPR:EXPR))}
+  }
+  {
+    {case EXPR when EXPR then EXPR else EXPR end}
+    {(((EXPR)==(EXPR))?EXPR:EXPR)}
+  }
+  {
+    {(select AGG from t1)}
+    {(AGG)}
+  }
+  {
+    {coalesce((select max(EXPR) from t1 where BOOL),EXPR)}
+    {[coalesce_subquery [expr {EXPR}] [expr {BOOL}] [expr {EXPR}]]}
+  }
+  {
+    {coalesce((select EXPR from t1 where BOOL),EXPR)}
+    {[coalesce_subquery [expr {EXPR}] [expr {BOOL}] [expr {EXPR}]]}
+  }
+}
+
+# The $boolexpr list contains terms that show both an SQL boolean
+# expression and its equivalent TCL.
+#
+set boolexpr {
+  {EXPR=EXPR   ((EXPR)==(EXPR))}
+  {EXPR<EXPR   ((EXPR)<(EXPR))}
+  {EXPR>EXPR   ((EXPR)>(EXPR))}
+  {EXPR<=EXPR  ((EXPR)<=(EXPR))}
+  {EXPR>=EXPR  ((EXPR)>=(EXPR))}
+  {EXPR<>EXPR  ((EXPR)!=(EXPR))}
+  {
+    {EXPR between EXPR and EXPR}
+    {[betweenop [expr {EXPR}] [expr {EXPR}] [expr {EXPR}]]}
+  }
+  {
+    {EXPR not between EXPR and EXPR}
+    {(![betweenop [expr {EXPR}] [expr {EXPR}] [expr {EXPR}]])}
+  }
+  {
+    {EXPR in (EXPR,EXPR,EXPR)}
+    {([inop [expr {EXPR}] [expr {EXPR}] [expr {EXPR}] [expr {EXPR}]])}
+  }
+  {
+    {EXPR not in (EXPR,EXPR,EXPR)}
+    {(![inop [expr {EXPR}] [expr {EXPR}] [expr {EXPR}] [expr {EXPR}]])}
+  }
+  {
+    {EXPR in (select EXPR from t1 union select EXPR from t1)}
+    {[inop [expr {EXPR}] [expr {EXPR}] [expr {EXPR}]]}
+  }
+  {
+    {EXPR in (select AGG from t1 union select AGG from t1)}
+    {[inop [expr {EXPR}] [expr {AGG}] [expr {AGG}]]}
+  }
+  {
+    {exists(select 1 from t1 where BOOL)}
+    {(BOOL)}
+  }
+  {
+    {not exists(select 1 from t1 where BOOL)}
+    {!(BOOL)}
+  }
+  {{not BOOL}  !BOOL}
+  {{BOOL and BOOL} {BOOL tcland BOOL}}
+  {{BOOL or BOOL}  {BOOL || BOOL}}
+  {{BOOL and BOOL} {BOOL tcland BOOL}}
+  {{BOOL or BOOL}  {BOOL || BOOL}}
+  {(BOOL) (BOOL)}
+  {(BOOL) (BOOL)}
+}
+
+# Aggregate expressions
+#
+set aggexpr {
+  {count(*) wide(1)}
+  {{count(distinct EXPR)} {[one {EXPR}]}}
+  {{cast(avg(EXPR) AS integer)} (EXPR)}
+  {min(EXPR) (EXPR)}
+  {max(EXPR) (EXPR)}
+  {(AGG) (AGG)}
+  {{ -AGG} {-AGG}}
+  {+AGG +AGG}
+  {~AGG ~AGG}
+  {abs(AGG)  abs(AGG)}
+  {AGG+AGG   AGG+AGG}
+  {AGG-AGG   AGG-AGG}
+  {AGG*AGG   AGG*AGG}
+  {{AGG | AGG}  {AGG | AGG}}
+  {
+    {case AGG when AGG then AGG else AGG end}
+    {(((AGG)==(AGG))?AGG:AGG)}
+  }
+}
+
+# Convert a string containing EXPR, AGG, and BOOL into a string
+# that contains nothing but X, Y, and Z.
+#
+proc extract_vars {a} {
+  regsub -all {EXPR} $a X a
+  regsub -all {AGG} $a Y a
+  regsub -all {BOOL} $a Z a
+  regsub -all {[^XYZ]} $a {} a
+  return $a
+}
+
+
+# Test all templates to make sure the number of EXPR, AGG, and BOOL
+# expressions match.
+#
+foreach term [concat $aggexpr $intexpr $boolexpr] {
+  foreach {a b} $term break
+  if {[extract_vars $a]!=[extract_vars $b]} {
+    error "mismatch: $term"
+  }
+}
+
+# Generate a random expression according to the templates given above.
+# If the argument is EXPR or omitted, then an integer expression is
+# generated.  If the argument is BOOL then a boolean expression is
+# produced.
+#
+proc generate_expr {{e EXPR}} {
+  set tcle $e
+  set ne [llength $::intexpr]
+  set nb [llength $::boolexpr]
+  set na [llength $::aggexpr]
+  set div 2
+  set mx 50
+  set i 0
+  while {1} {
+    set cnt 0
+    set re [lindex $::intexpr [expr {int(rand()*$ne)}]]
+    incr cnt [regsub {EXPR} $e [lindex $re 0] e]
+    regsub {EXPR} $tcle [lindex $re 1] tcle
+    set rb [lindex $::boolexpr [expr {int(rand()*$nb)}]]
+    incr cnt [regsub {BOOL} $e [lindex $rb 0] e]
+    regsub {BOOL} $tcle [lindex $rb 1] tcle
+    set ra [lindex $::aggexpr [expr {int(rand()*$na)}]]
+    incr cnt [regsub {AGG} $e [lindex $ra 0] e]
+    regsub {AGG} $tcle [lindex $ra 1] tcle
+
+    if {$cnt==0} break
+    incr i $cnt
+
+    set v1 [extract_vars $e]
+    if {$v1!=[extract_vars $tcle]} {
+      exit
+    }
+
+    if {$i+[string length $v1]>=$mx} {
+      set ne [expr {$ne/$div}]
+      set nb [expr {$nb/$div}]
+      set na [expr {$na/$div}]
+      set div 1
+      set mx [expr {$mx*1000}]
+    }
+  }
+  regsub -all { tcland } $tcle { \&\& } tcle
+  return [list $e $tcle]
+}
+
+# Implementation of routines used to implement the IN and BETWEEN
+# operators.
+proc inop {lhs args} {
+  foreach a $args {
+    if {$a==$lhs} {return 1}
+  }
+  return 0
+}
+proc betweenop {lhs first second} {
+  return [expr {$lhs>=$first && $lhs<=$second}]
+}
+proc coalesce_subquery {a b e} {
+  if {$b} {
+    return $a
+  } else {
+    return $e
+  }
+}
+proc one {args} {
+  return 1
+}
+
+# Begin generating the test script:
+#
+puts {# 2008 December 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file tests randomly generated SQL expressions.  The expressions
+# are generated by a TCL script.  The same TCL script also computes the
+# correct value of the expression.  So, from one point of view, this
+# file verifies the expression evaluation logic of SQLite against the
+# expression evaluation logic of TCL.
+#
+# An early version of this script is how bug #3541 was detected.
+#
+# $Id: randexpr1.tcl,v 1.1 2008/12/15 16:33:30 drh Exp $
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Create test data
+#
+do_test randexpr1-1.1 {
+  db eval {
+    CREATE TABLE t1(a,b,c,d,e,f);
+    INSERT INTO t1 VALUES(100,200,300,400,500,600);
+    SELECT * FROM t1
+  }
+} {100 200 300 400 500 600}
+}
+
+# Test data for TCL evaluation.
+#
+set a [expr {wide(100)}]
+set b [expr {wide(200)}]
+set c [expr {wide(300)}]
+set d [expr {wide(400)}]
+set e [expr {wide(500)}]
+set f [expr {wide(600)}]
+
+# A procedure to generate a test case.
+#
+set tn 0
+proc make_test_case {sql result} {
+  global tn
+  incr tn
+  puts "do_test randexpr-2.$tn {\n  db eval {$sql}\n} {$result}"
+}
+
+# Generate many random test cases.
+#
+expr srand(0)
+for {set i 0} {$i<1000} {incr i} {
+  while {1} {
+    foreach {sqle tcle} [generate_expr EXPR] break;
+    if {[catch {expr $tcle} ans]} {
+      #puts stderr [list $tcle]
+      #puts stderr ans=$ans
+      if {![regexp {divide by zero} $ans]} exit
+      continue
+    }
+    set len [string length $sqle]
+    if {$len<100 || $len>2000} continue
+    if {[info exists seen($sqle)]} continue
+    set seen($sqle) 1
+    break
+  }
+  while {1} {
+    foreach {sqlb tclb} [generate_expr BOOL] break;
+    if {[catch {expr $tclb} bans]} {
+      #puts stderr [list $tclb]
+      #puts stderr bans=$bans
+      if {![regexp {divide by zero} $bans]} exit
+      continue
+    }
+    break
+  }
+  if {$bans} {
+    make_test_case "SELECT $sqle FROM t1 WHERE $sqlb" $ans
+    make_test_case "SELECT $sqle FROM t1 WHERE NOT ($sqlb)" {}
+  } else {
+    make_test_case "SELECT $sqle FROM t1 WHERE $sqlb" {}
+    make_test_case "SELECT $sqle FROM t1 WHERE NOT ($sqlb)" $ans
+  }
+  if {[regexp { \| } $sqle]} {
+    regsub -all { \| } $sqle { \& } sqle
+    regsub -all { \| } $tcle { \& } tcle
+    if {[catch {expr $tcle} ans]==0} {
+      if {$bans} {
+        make_test_case "SELECT $sqle FROM t1 WHERE $sqlb" $ans
+      } else {
+        make_test_case "SELECT $sqle FROM t1 WHERE NOT ($sqlb)" $ans
+      }
+    }
+  }
+}
+
+# Terminate the test script
+#
+puts {finish_test}
diff --git a/test/randexpr1.test b/test/randexpr1.test
new file mode 100644
index 0000000000000000000000000000000000000000..7a98f0be0fdbce4aabda03d21709a3d4f3821205
--- /dev/null
+++ b/test/randexpr1.test
@@ -0,0 +1,7837 @@
+# 2008 December 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file tests randomly generated SQL expressions.  The expressions
+# are generated by a TCL script.  The same TCL script also computes the
+# correct value of the expression.  So, from one point of view, this
+# file verifies the expression evaluation logic of SQLite against the
+# expression evaluation logic of TCL.
+#
+# An early version of this script is how bug #3541 was detected.
+#
+# $Id: randexpr1.test,v 1.1 2008/12/15 16:33:30 drh Exp $
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !compound {
+  finish_test
+  return
+}
+
+# Create test data
+#
+do_test randexpr1-1.1 {
+  db eval {
+    CREATE TABLE t1(a,b,c,d,e,f);
+    INSERT INTO t1 VALUES(100,200,300,400,500,600);
+    SELECT * FROM t1
+  }
+} {100 200 300 400 500 600}
+
+do_test randexpr-2.1 {
+  db eval {SELECT coalesce((select 11 from t1 where 19 in (t1.b,+11,coalesce((select max((abs(17)/abs(t1.f))) from t1 where ((abs(t1.f)/abs(t1.b)) in (select case (min(t1.a | d*d)+(abs(count(*)-count(*)+ -count(*)*max( -t1.c))-max(f))) when  -count(distinct 19) then ((count(*))) else max(13) end from t1 union select count(distinct b) from t1)) or 19 in (t1.a,t1.c,17)),17) | 17)),13) FROM t1 WHERE not not c=a-+(select case ~case  -~+count(distinct (select count(distinct t1.a)*max(13) from t1))+max( -19*f)*max(f)*max(f)* -count(distinct d)-(count(distinct 11)) | max(t1.f)*count(*) when count(distinct b) then count(distinct t1.b) else  -min(t1.f) end*cast(avg(11) AS integer) when max(t1.f) then max(c) else count(*) end from t1)+d}
+} {}
+do_test randexpr-2.2 {
+  db eval {SELECT coalesce((select 11 from t1 where 19 in (t1.b,+11,coalesce((select max((abs(17)/abs(t1.f))) from t1 where ((abs(t1.f)/abs(t1.b)) in (select case (min(t1.a | d*d)+(abs(count(*)-count(*)+ -count(*)*max( -t1.c))-max(f))) when  -count(distinct 19) then ((count(*))) else max(13) end from t1 union select count(distinct b) from t1)) or 19 in (t1.a,t1.c,17)),17) | 17)),13) FROM t1 WHERE NOT (not not c=a-+(select case ~case  -~+count(distinct (select count(distinct t1.a)*max(13) from t1))+max( -19*f)*max(f)*max(f)* -count(distinct d)-(count(distinct 11)) | max(t1.f)*count(*) when count(distinct b) then count(distinct t1.b) else  -min(t1.f) end*cast(avg(11) AS integer) when max(t1.f) then max(c) else count(*) end from t1)+d)}
+} {13}
+do_test randexpr-2.3 {
+  db eval {SELECT coalesce((select 11 from t1 where 19 in (t1.b,+11,coalesce((select max((abs(17)/abs(t1.f))) from t1 where ((abs(t1.f)/abs(t1.b)) in (select case (min(t1.a & d*d)+(abs(count(*)-count(*)+ -count(*)*max( -t1.c))-max(f))) when  -count(distinct 19) then ((count(*))) else max(13) end from t1 union select count(distinct b) from t1)) or 19 in (t1.a,t1.c,17)),17) & 17)),13) FROM t1 WHERE NOT (not not c=a-+(select case ~case  -~+count(distinct (select count(distinct t1.a)*max(13) from t1))+max( -19*f)*max(f)*max(f)* -count(distinct d)-(count(distinct 11)) | max(t1.f)*count(*) when count(distinct b) then count(distinct t1.b) else  -min(t1.f) end*cast(avg(11) AS integer) when max(t1.f) then max(c) else count(*) end from t1)+d)}
+} {13}
+do_test randexpr-2.4 {
+  db eval {SELECT t1.c*19-t1.f*19+coalesce((select 17 from t1 where e in (f,case (select cast(avg(t1.a) AS integer) from t1)-t1.d when coalesce((select +case when not exists(select 1 from t1 where 17<>t1.f and ((a))<t1.b) then t1.c when c not between b and 11 then case when t1.c<f then t1.b when e in (t1.d,t1.d, -e) then d else t1.b end else f end+11 from t1 where exists(select 1 from t1 where t1.f in (select (count(distinct f)) from t1 union select max(11) from t1))),e) then 11 else t1.a end,t1.d)),13)*b+b FROM t1 WHERE ~t1.b<case when t1.b+t1.c in (select  -count(distinct 17+coalesce((select max( -f+t1.c-d) from t1 where (19>=a) and t1.b between f and 13),t1.a))+case abs(+(max(19))) | count(distinct t1.e) | count(distinct 19) when count(*) then (max(a)) else count(distinct d) end from t1 union select (count(*)) from t1) and t1.b>=19 then d when t1.b in (select d from t1 union select c from t1) then t1.e else a end}
+} {-2900}
+do_test randexpr-2.5 {
+  db eval {SELECT t1.c*19-t1.f*19+coalesce((select 17 from t1 where e in (f,case (select cast(avg(t1.a) AS integer) from t1)-t1.d when coalesce((select +case when not exists(select 1 from t1 where 17<>t1.f and ((a))<t1.b) then t1.c when c not between b and 11 then case when t1.c<f then t1.b when e in (t1.d,t1.d, -e) then d else t1.b end else f end+11 from t1 where exists(select 1 from t1 where t1.f in (select (count(distinct f)) from t1 union select max(11) from t1))),e) then 11 else t1.a end,t1.d)),13)*b+b FROM t1 WHERE NOT (~t1.b<case when t1.b+t1.c in (select  -count(distinct 17+coalesce((select max( -f+t1.c-d) from t1 where (19>=a) and t1.b between f and 13),t1.a))+case abs(+(max(19))) | count(distinct t1.e) | count(distinct 19) when count(*) then (max(a)) else count(distinct d) end from t1 union select (count(*)) from t1) and t1.b>=19 then d when t1.b in (select d from t1 union select c from t1) then t1.e else a end)}
+} {}
+do_test randexpr-2.6 {
+  db eval {SELECT case when case when not exists(select 1 from t1 where e not in (~t1.d,+case when t1.c<b then t1.e else t1.a end-11 | t1.f,c) or b in (select cast(avg(b) AS integer)*(~abs((count(*))))* -( -cast(avg(e) AS integer)) from t1 union select min(t1.c) from t1)) then t1.f when not exists(select 1 from t1 where not c<>d) then 17 else t1.e end in (a,t1.e,17) or (not exists(select 1 from t1 where a in (f,t1.c,t1.a))) then 11 else 13 end FROM t1 WHERE t1.b<case when exists(select 1 from t1 where not  -(select min(t1.b*b*t1.a+t1.d)+abs(case count(*) | (cast(avg(c) AS integer)) when max(17) then min(c) else (min(13)) end)+min(e) from t1) not in (t1.c,f-d,11) and c not between (19) and e) then ~13*t1.a when 13 not in (t1.e,c,11) then b else t1.c end*c-t1.d}
+} {11}
+do_test randexpr-2.7 {
+  db eval {SELECT case when case when not exists(select 1 from t1 where e not in (~t1.d,+case when t1.c<b then t1.e else t1.a end-11 | t1.f,c) or b in (select cast(avg(b) AS integer)*(~abs((count(*))))* -( -cast(avg(e) AS integer)) from t1 union select min(t1.c) from t1)) then t1.f when not exists(select 1 from t1 where not c<>d) then 17 else t1.e end in (a,t1.e,17) or (not exists(select 1 from t1 where a in (f,t1.c,t1.a))) then 11 else 13 end FROM t1 WHERE NOT (t1.b<case when exists(select 1 from t1 where not  -(select min(t1.b*b*t1.a+t1.d)+abs(case count(*) | (cast(avg(c) AS integer)) when max(17) then min(c) else (min(13)) end)+min(e) from t1) not in (t1.c,f-d,11) and c not between (19) and e) then ~13*t1.a when 13 not in (t1.e,c,11) then b else t1.c end*c-t1.d)}
+} {}
+do_test randexpr-2.8 {
+  db eval {SELECT case when case when not exists(select 1 from t1 where e not in (~t1.d,+case when t1.c<b then t1.e else t1.a end-11 & t1.f,c) or b in (select cast(avg(b) AS integer)*(~abs((count(*))))* -( -cast(avg(e) AS integer)) from t1 union select min(t1.c) from t1)) then t1.f when not exists(select 1 from t1 where not c<>d) then 17 else t1.e end in (a,t1.e,17) or (not exists(select 1 from t1 where a in (f,t1.c,t1.a))) then 11 else 13 end FROM t1 WHERE t1.b<case when exists(select 1 from t1 where not  -(select min(t1.b*b*t1.a+t1.d)+abs(case count(*) | (cast(avg(c) AS integer)) when max(17) then min(c) else (min(13)) end)+min(e) from t1) not in (t1.c,f-d,11) and c not between (19) and e) then ~13*t1.a when 13 not in (t1.e,c,11) then b else t1.c end*c-t1.d}
+} {11}
+do_test randexpr-2.9 {
+  db eval {SELECT coalesce((select max(11- -19-f-t1.b+a) from t1 where exists(select 1 from t1 where 11-~(d)-c*a*~t1.a-t1.e-t1.e+coalesce((select coalesce((select t1.c from t1 where case (c) when d then e else 11 end=t1.f),t1.d) from t1 where (t1.d)>b), -11) | f+t1.f not in (((c)),b,13))),f) FROM t1 WHERE case when 19+c>=t1.a then t1.c when not case when not exists(select 1 from t1 where +f | b*b*19+19*13-a | case when t1.e not in (t1.f,t1.c,b) then 11 when 17>t1.c then a else e end<>e) then b when 17=t1.e then b else e end<>t1.b then a else d end-t1.b=(13)}
+} {}
+do_test randexpr-2.10 {
+  db eval {SELECT coalesce((select max(11- -19-f-t1.b+a) from t1 where exists(select 1 from t1 where 11-~(d)-c*a*~t1.a-t1.e-t1.e+coalesce((select coalesce((select t1.c from t1 where case (c) when d then e else 11 end=t1.f),t1.d) from t1 where (t1.d)>b), -11) | f+t1.f not in (((c)),b,13))),f) FROM t1 WHERE NOT (case when 19+c>=t1.a then t1.c when not case when not exists(select 1 from t1 where +f | b*b*19+19*13-a | case when t1.e not in (t1.f,t1.c,b) then 11 when 17>t1.c then a else e end<>e) then b when 17=t1.e then b else e end<>t1.b then a else d end-t1.b=(13))}
+} {-670}
+do_test randexpr-2.11 {
+  db eval {SELECT coalesce((select max(11- -19-f-t1.b+a) from t1 where exists(select 1 from t1 where 11-~(d)-c*a*~t1.a-t1.e-t1.e+coalesce((select coalesce((select t1.c from t1 where case (c) when d then e else 11 end=t1.f),t1.d) from t1 where (t1.d)>b), -11) & f+t1.f not in (((c)),b,13))),f) FROM t1 WHERE NOT (case when 19+c>=t1.a then t1.c when not case when not exists(select 1 from t1 where +f | b*b*19+19*13-a | case when t1.e not in (t1.f,t1.c,b) then 11 when 17>t1.c then a else e end<>e) then b when 17=t1.e then b else e end<>t1.b then a else d end-t1.b=(13))}
+} {-670}
+do_test randexpr-2.12 {
+  db eval {SELECT (abs(17)/abs(~case when (abs(t1.c* -(abs(case b | coalesce((select max(17*e*case when 11 in (select t1.b from t1 union select t1.c from t1) then 19 when d between f and t1.e then t1.e else t1.e end | b) from t1 where (13 not in (11,t1.d,e))),e)*a*d when 11 then e else d end*17)/abs(19)))/abs(t1.e))<>e then t1.b else t1.d end*(19))) FROM t1 WHERE exists(select 1 from t1 where t1.d+11 in (case t1.b++c when +a*(+case (select count(*) from t1) when 19 then t1.c else a end) then t1.a else case when (t1.b> -d) and not exists(select 1 from t1 where not exists(select 1 from t1 where (abs(f)/abs( -f*a+c*11))<>a)) then 13 else 19 end end,17,a)) or c=t1.d}
+} {}
+do_test randexpr-2.13 {
+  db eval {SELECT (abs(17)/abs(~case when (abs(t1.c* -(abs(case b | coalesce((select max(17*e*case when 11 in (select t1.b from t1 union select t1.c from t1) then 19 when d between f and t1.e then t1.e else t1.e end | b) from t1 where (13 not in (11,t1.d,e))),e)*a*d when 11 then e else d end*17)/abs(19)))/abs(t1.e))<>e then t1.b else t1.d end*(19))) FROM t1 WHERE NOT (exists(select 1 from t1 where t1.d+11 in (case t1.b++c when +a*(+case (select count(*) from t1) when 19 then t1.c else a end) then t1.a else case when (t1.b> -d) and not exists(select 1 from t1 where not exists(select 1 from t1 where (abs(f)/abs( -f*a+c*11))<>a)) then 13 else 19 end end,17,a)) or c=t1.d)}
+} {0}
+do_test randexpr-2.14 {
+  db eval {SELECT (abs(17)/abs(~case when (abs(t1.c* -(abs(case b & coalesce((select max(17*e*case when 11 in (select t1.b from t1 union select t1.c from t1) then 19 when d between f and t1.e then t1.e else t1.e end & b) from t1 where (13 not in (11,t1.d,e))),e)*a*d when 11 then e else d end*17)/abs(19)))/abs(t1.e))<>e then t1.b else t1.d end*(19))) FROM t1 WHERE NOT (exists(select 1 from t1 where t1.d+11 in (case t1.b++c when +a*(+case (select count(*) from t1) when 19 then t1.c else a end) then t1.a else case when (t1.b> -d) and not exists(select 1 from t1 where not exists(select 1 from t1 where (abs(f)/abs( -f*a+c*11))<>a)) then 13 else 19 end end,17,a)) or c=t1.d)}
+} {0}
+do_test randexpr-2.15 {
+  db eval {SELECT coalesce((select t1.c from t1 where e not between 19 and b*d or not exists(select 1 from t1 where t1.a not in (case when d not between b+~(t1.d)-case when ((t1.f<=t1.e) and  -11<f) then e*(abs(t1.a)/abs((t1.c))) else c end+b and t1.e then e when not exists(select 1 from t1 where 11<17) then a else t1.f end,(c),c))),t1.d) FROM t1 WHERE t1.c*((select  -count(distinct t1.a) | + -count(distinct t1.b)*cast(avg(a) AS integer)-cast(avg(13) AS integer) | ~abs(min(17)) |  -min(c)*(count(distinct t1.e)) from t1)- -(abs(+t1.b-13)/abs(11)))+t1.f-coalesce((select max(f) from t1 where t1.d between c and t1.a),17)*a in (select 17 from t1 union select  -17 from t1)}
+} {}
+do_test randexpr-2.16 {
+  db eval {SELECT coalesce((select t1.c from t1 where e not between 19 and b*d or not exists(select 1 from t1 where t1.a not in (case when d not between b+~(t1.d)-case when ((t1.f<=t1.e) and  -11<f) then e*(abs(t1.a)/abs((t1.c))) else c end+b and t1.e then e when not exists(select 1 from t1 where 11<17) then a else t1.f end,(c),c))),t1.d) FROM t1 WHERE NOT (t1.c*((select  -count(distinct t1.a) | + -count(distinct t1.b)*cast(avg(a) AS integer)-cast(avg(13) AS integer) | ~abs(min(17)) |  -min(c)*(count(distinct t1.e)) from t1)- -(abs(+t1.b-13)/abs(11)))+t1.f-coalesce((select max(f) from t1 where t1.d between c and t1.a),17)*a in (select 17 from t1 union select  -17 from t1))}
+} {400}
+do_test randexpr-2.17 {
+  db eval {SELECT +t1.f*~t1.c-coalesce((select max(~b) from t1 where t1.e+11-(abs(e+case d when b then case when f=(13) then (abs(13+b*t1.f)/abs(t1.c)) when d<=t1.e then 13 else a end else 19 end*13+f)/abs((a)))*17<=c),b)-13*c FROM t1 WHERE not exists(select 1 from t1 where coalesce((select max(case when case when exists(select 1 from t1 where ~t1.d+d in (select ~count(distinct 13) from t1 union select count(*)+~abs(+(~min(t1.a))) from t1)) then t1.e+t1.c else  -(abs(t1.d)/abs(coalesce((select max(t1.d) from t1 where d not in (17,f,f)),11)*t1.c)) end<=(11) then 19 else (t1.e) end) from t1 where (13=11)),c) not between 13 and 19)}
+} {}
+do_test randexpr-2.18 {
+  db eval {SELECT +t1.f*~t1.c-coalesce((select max(~b) from t1 where t1.e+11-(abs(e+case d when b then case when f=(13) then (abs(13+b*t1.f)/abs(t1.c)) when d<=t1.e then 13 else a end else 19 end*13+f)/abs((a)))*17<=c),b)-13*c FROM t1 WHERE NOT (not exists(select 1 from t1 where coalesce((select max(case when case when exists(select 1 from t1 where ~t1.d+d in (select ~count(distinct 13) from t1 union select count(*)+~abs(+(~min(t1.a))) from t1)) then t1.e+t1.c else  -(abs(t1.d)/abs(coalesce((select max(t1.d) from t1 where d not in (17,f,f)),11)*t1.c)) end<=(11) then 19 else (t1.e) end) from t1 where (13=11)),c) not between 13 and 19))}
+} {-184299}
+do_test randexpr-2.19 {
+  db eval {SELECT case when (a not in (t1.e,(+case when t1.b<=(abs(coalesce((select max(a+(select count(distinct (select max(((abs( -t1.d)/abs(a))) | t1.c)*min(t1.e) from t1)) from t1)) from t1 where +t1.f>e),17))/abs( - -17)) then 17 else t1.d end-t1.b-d) |  -f,c)) then 11-t1.f when ( -13<e) then t1.d else a end FROM t1 WHERE t1.c not between ~case when case when (select  - -abs( -case  -count(distinct c) when count(*) then max(c) else count(distinct 13) end) | min(c) from t1) in (t1.f,b+11,19*t1.d) then 19 else a end*t1.b>13 or t1.e in (select (count(*)) from t1 union select cast(avg(t1.e) AS integer) from t1) or 19>17 and 13 not between 19 and 17 then (t1.f) when not t1.b<>t1.f or d<>b then t1.e else a end and c}
+} {}
+do_test randexpr-2.20 {
+  db eval {SELECT case when (a not in (t1.e,(+case when t1.b<=(abs(coalesce((select max(a+(select count(distinct (select max(((abs( -t1.d)/abs(a))) | t1.c)*min(t1.e) from t1)) from t1)) from t1 where +t1.f>e),17))/abs( - -17)) then 17 else t1.d end-t1.b-d) |  -f,c)) then 11-t1.f when ( -13<e) then t1.d else a end FROM t1 WHERE NOT (t1.c not between ~case when case when (select  - -abs( -case  -count(distinct c) when count(*) then max(c) else count(distinct 13) end) | min(c) from t1) in (t1.f,b+11,19*t1.d) then 19 else a end*t1.b>13 or t1.e in (select (count(*)) from t1 union select cast(avg(t1.e) AS integer) from t1) or 19>17 and 13 not between 19 and 17 then (t1.f) when not t1.b<>t1.f or d<>b then t1.e else a end and c)}
+} {-589}
+do_test randexpr-2.21 {
+  db eval {SELECT case when (a not in (t1.e,(+case when t1.b<=(abs(coalesce((select max(a+(select count(distinct (select max(((abs( -t1.d)/abs(a))) & t1.c)*min(t1.e) from t1)) from t1)) from t1 where +t1.f>e),17))/abs( - -17)) then 17 else t1.d end-t1.b-d) &  -f,c)) then 11-t1.f when ( -13<e) then t1.d else a end FROM t1 WHERE NOT (t1.c not between ~case when case when (select  - -abs( -case  -count(distinct c) when count(*) then max(c) else count(distinct 13) end) | min(c) from t1) in (t1.f,b+11,19*t1.d) then 19 else a end*t1.b>13 or t1.e in (select (count(*)) from t1 union select cast(avg(t1.e) AS integer) from t1) or 19>17 and 13 not between 19 and 17 then (t1.f) when not t1.b<>t1.f or d<>b then t1.e else a end and c)}
+} {-589}
+do_test randexpr-2.22 {
+  db eval {SELECT t1.a | case when e in (select (13) from t1 union select d from t1) then (17) when c*~case (17) when coalesce((select max(case when case when 19 in (13,t1.f,11) then t1.b else t1.b end | 11>t1.a then 11 else t1.b end-b) from t1 where (13 not in (a,19,b)) and t1.a not between  -11 and t1.f),f) then e else t1.c end | a in (select 11 from t1 union select t1.d from t1) then 17 else t1.a end | f FROM t1 WHERE coalesce((select t1.a*t1.a from t1 where ~ -(abs((select abs(count(*))-count(distinct t1.d*11) from t1)*+b)/abs(~t1.c))+c not in (coalesce((select ~13*t1.a from t1 where f+(abs(d* -t1.f)/abs(t1.c))<=t1.b or not t1.a<=t1.c),t1.c),e,(t1.e))),(a))+11<>11}
+} {636}
+do_test randexpr-2.23 {
+  db eval {SELECT t1.a | case when e in (select (13) from t1 union select d from t1) then (17) when c*~case (17) when coalesce((select max(case when case when 19 in (13,t1.f,11) then t1.b else t1.b end | 11>t1.a then 11 else t1.b end-b) from t1 where (13 not in (a,19,b)) and t1.a not between  -11 and t1.f),f) then e else t1.c end | a in (select 11 from t1 union select t1.d from t1) then 17 else t1.a end | f FROM t1 WHERE NOT (coalesce((select t1.a*t1.a from t1 where ~ -(abs((select abs(count(*))-count(distinct t1.d*11) from t1)*+b)/abs(~t1.c))+c not in (coalesce((select ~13*t1.a from t1 where f+(abs(d* -t1.f)/abs(t1.c))<=t1.b or not t1.a<=t1.c),t1.c),e,(t1.e))),(a))+11<>11)}
+} {}
+do_test randexpr-2.24 {
+  db eval {SELECT t1.a & case when e in (select (13) from t1 union select d from t1) then (17) when c*~case (17) when coalesce((select max(case when case when 19 in (13,t1.f,11) then t1.b else t1.b end & 11>t1.a then 11 else t1.b end-b) from t1 where (13 not in (a,19,b)) and t1.a not between  -11 and t1.f),f) then e else t1.c end & a in (select 11 from t1 union select t1.d from t1) then 17 else t1.a end & f FROM t1 WHERE coalesce((select t1.a*t1.a from t1 where ~ -(abs((select abs(count(*))-count(distinct t1.d*11) from t1)*+b)/abs(~t1.c))+c not in (coalesce((select ~13*t1.a from t1 where f+(abs(d* -t1.f)/abs(t1.c))<=t1.b or not t1.a<=t1.c),t1.c),e,(t1.e))),(a))+11<>11}
+} {64}
+do_test randexpr-2.25 {
+  db eval {SELECT c*coalesce((select ~19-e from t1 where not exists(select 1 from t1 where case when t1.b<>(d) then case when exists(select 1 from t1 where not exists(select 1 from t1 where case t1.e when e*(11) then 13 else 11 end in (select t1.a from t1 union select 13 from t1))) then coalesce((select case when f in (select t1.c from t1 union select (t1.b) from t1) then f else a end from t1 where t1.f not between 17 and f), -f) else 11 end else (a) end*d not in (e,t1.c,t1.e))),t1.e)-a FROM t1 WHERE 19+(select cast(avg((abs(t1.d)/abs(coalesce((select max(+b-(t1.e+b+ -c)*19) from t1 where 11 not between t1.b and f), -17)))*(11)) AS integer) from t1)*f in (select count(*) from t1 union select case max(t1.d)-( -min(t1.d)*(+max(e))) when max(t1.a) then cast(avg(t1.d) AS integer)-(count(distinct t1.f))-( -cast(avg(f) AS integer)) else max(t1.e) end from t1)}
+} {}
+do_test randexpr-2.26 {
+  db eval {SELECT c*coalesce((select ~19-e from t1 where not exists(select 1 from t1 where case when t1.b<>(d) then case when exists(select 1 from t1 where not exists(select 1 from t1 where case t1.e when e*(11) then 13 else 11 end in (select t1.a from t1 union select 13 from t1))) then coalesce((select case when f in (select t1.c from t1 union select (t1.b) from t1) then f else a end from t1 where t1.f not between 17 and f), -f) else 11 end else (a) end*d not in (e,t1.c,t1.e))),t1.e)-a FROM t1 WHERE NOT (19+(select cast(avg((abs(t1.d)/abs(coalesce((select max(+b-(t1.e+b+ -c)*19) from t1 where 11 not between t1.b and f), -17)))*(11)) AS integer) from t1)*f in (select count(*) from t1 union select case max(t1.d)-( -min(t1.d)*(+max(e))) when max(t1.a) then cast(avg(t1.d) AS integer)-(count(distinct t1.f))-( -cast(avg(f) AS integer)) else max(t1.e) end from t1))}
+} {149900}
+do_test randexpr-2.27 {
+  db eval {SELECT (abs((select (case abs(min(t1.f)) | count(distinct e) when (~+count(*)+max(e)++abs(cast(avg(~19) AS integer))) then +cast(avg(c) AS integer) else ~ -max(+t1.b)+~max(19)*count(distinct a)*min(17) | max(t1.d) end) from t1))/abs(~c+(select  -(count(distinct t1.e)) from t1)-11+t1.e)) FROM t1 WHERE 11>=t1.f}
+} {}
+do_test randexpr-2.28 {
+  db eval {SELECT (abs((select (case abs(min(t1.f)) | count(distinct e) when (~+count(*)+max(e)++abs(cast(avg(~19) AS integer))) then +cast(avg(c) AS integer) else ~ -max(+t1.b)+~max(19)*count(distinct a)*min(17) | max(t1.d) end) from t1))/abs(~c+(select  -(count(distinct t1.e)) from t1)-11+t1.e)) FROM t1 WHERE NOT (11>=t1.f)}
+} {0}
+do_test randexpr-2.29 {
+  db eval {SELECT (abs((select (case abs(min(t1.f)) & count(distinct e) when (~+count(*)+max(e)++abs(cast(avg(~19) AS integer))) then +cast(avg(c) AS integer) else ~ -max(+t1.b)+~max(19)*count(distinct a)*min(17) & max(t1.d) end) from t1))/abs(~c+(select  -(count(distinct t1.e)) from t1)-11+t1.e)) FROM t1 WHERE NOT (11>=t1.f)}
+} {1}
+do_test randexpr-2.30 {
+  db eval {SELECT (select +count(distinct case when 11=a or e<+t1.f+t1.c and not exists(select 1 from t1 where not t1.a-t1.b=~a and f<=coalesce((select max((e)) from t1 where +t1.f>=b),t1.d)*13) and t1.c>t1.e and t1.a<17 then f when a<c then t1.d else c end) from t1) FROM t1 WHERE t1.b=case t1.e | f+t1.d when case when t1.f | t1.e in (select  -+min(case when t1.c in (select t1.b from t1 union select b-19*(abs(b)/abs(t1.b*case when not exists(select 1 from t1 where t1.a in (select ~cast(avg(d) AS integer) from t1 union select max(t1.f) from t1)) then ~(13) when  -c=t1.b then t1.c else f end)) from t1) then e else 17 end) from t1 union select max((a)) from t1) then  -b else t1.d end+13 then a else 13 end}
+} {}
+do_test randexpr-2.31 {
+  db eval {SELECT (select +count(distinct case when 11=a or e<+t1.f+t1.c and not exists(select 1 from t1 where not t1.a-t1.b=~a and f<=coalesce((select max((e)) from t1 where +t1.f>=b),t1.d)*13) and t1.c>t1.e and t1.a<17 then f when a<c then t1.d else c end) from t1) FROM t1 WHERE NOT (t1.b=case t1.e | f+t1.d when case when t1.f | t1.e in (select  -+min(case when t1.c in (select t1.b from t1 union select b-19*(abs(b)/abs(t1.b*case when not exists(select 1 from t1 where t1.a in (select ~cast(avg(d) AS integer) from t1 union select max(t1.f) from t1)) then ~(13) when  -c=t1.b then t1.c else f end)) from t1) then e else 17 end) from t1 union select max((a)) from t1) then  -b else t1.d end+13 then a else 13 end)}
+} {1}
+do_test randexpr-2.32 {
+  db eval {SELECT coalesce((select (select max(t1.a)*(max(a))*max(t1.f*~11*case when b not in ((select min(19) from t1),b,coalesce((select max((t1.f)) from t1 where t1.c in (c,t1.b,(t1.f)) or t1.a<>(c)),b)*t1.b-t1.b) then d else t1.e end | f* -13-c) from t1) from t1 where not ~a<f), -19)+t1.d+b FROM t1 WHERE 13*t1.d between coalesce((select t1.d from t1 where b in (select t1.d from t1 union select case b*t1.f+t1.a*+coalesce((select t1.a from t1 where (not exists(select 1 from t1 where b*t1.c=13))),11)+t1.e when ~f then d+case b when e then f else t1.e end*13 else f end from t1)),19) and t1.d and 19 between 17 and e and a>a}
+} {}
+do_test randexpr-2.33 {
+  db eval {SELECT coalesce((select (select max(t1.a)*(max(a))*max(t1.f*~11*case when b not in ((select min(19) from t1),b,coalesce((select max((t1.f)) from t1 where t1.c in (c,t1.b,(t1.f)) or t1.a<>(c)),b)*t1.b-t1.b) then d else t1.e end | f* -13-c) from t1) from t1 where not ~a<f), -19)+t1.d+b FROM t1 WHERE NOT (13*t1.d between coalesce((select t1.d from t1 where b in (select t1.d from t1 union select case b*t1.f+t1.a*+coalesce((select t1.a from t1 where (not exists(select 1 from t1 where b*t1.c=13))),11)+t1.e when ~f then d+case b when e then f else t1.e end*13 else f end from t1)),19) and t1.d and 19 between 17 and e and a>a)}
+} {581}
+do_test randexpr-2.34 {
+  db eval {SELECT coalesce((select (select max(t1.a)*(max(a))*max(t1.f*~11*case when b not in ((select min(19) from t1),b,coalesce((select max((t1.f)) from t1 where t1.c in (c,t1.b,(t1.f)) or t1.a<>(c)),b)*t1.b-t1.b) then d else t1.e end & f* -13-c) from t1) from t1 where not ~a<f), -19)+t1.d+b FROM t1 WHERE NOT (13*t1.d between coalesce((select t1.d from t1 where b in (select t1.d from t1 union select case b*t1.f+t1.a*+coalesce((select t1.a from t1 where (not exists(select 1 from t1 where b*t1.c=13))),11)+t1.e when ~f then d+case b when e then f else t1.e end*13 else f end from t1)),19) and t1.d and 19 between 17 and e and a>a)}
+} {581}
+do_test randexpr-2.35 {
+  db eval {SELECT case when t1.d not in (t1.d,coalesce((select max(11) from t1 where f not between 13 and c-coalesce((select max(d) from t1 where 19 not in ((t1.f),f,11)),t1.d)*t1.e | a),13), -(t1.e)) then t1.b when t1.f=t1.a and exists(select 1 from t1 where b in (select c from t1 union select 11 from t1) and t1.c=b and not  -d in (t1.d,t1.d,t1.b) and d between 11 and c) or d<=17 or a not in (e,19,(t1.b)) then 17 else 11 end FROM t1 WHERE a<>f+f}
+} {17}
+do_test randexpr-2.36 {
+  db eval {SELECT case when t1.d not in (t1.d,coalesce((select max(11) from t1 where f not between 13 and c-coalesce((select max(d) from t1 where 19 not in ((t1.f),f,11)),t1.d)*t1.e | a),13), -(t1.e)) then t1.b when t1.f=t1.a and exists(select 1 from t1 where b in (select c from t1 union select 11 from t1) and t1.c=b and not  -d in (t1.d,t1.d,t1.b) and d between 11 and c) or d<=17 or a not in (e,19,(t1.b)) then 17 else 11 end FROM t1 WHERE NOT (a<>f+f)}
+} {}
+do_test randexpr-2.37 {
+  db eval {SELECT case when t1.d not in (t1.d,coalesce((select max(11) from t1 where f not between 13 and c-coalesce((select max(d) from t1 where 19 not in ((t1.f),f,11)),t1.d)*t1.e & a),13), -(t1.e)) then t1.b when t1.f=t1.a and exists(select 1 from t1 where b in (select c from t1 union select 11 from t1) and t1.c=b and not  -d in (t1.d,t1.d,t1.b) and d between 11 and c) or d<=17 or a not in (e,19,(t1.b)) then 17 else 11 end FROM t1 WHERE a<>f+f}
+} {17}
+do_test randexpr-2.38 {
+  db eval {SELECT case 13 when coalesce((select t1.a*d+++b | b+(abs(t1.e)/abs(c))+(select count(*) from t1) from t1 where not exists(select 1 from t1 where 17 in (select d from t1 union select t1.f from t1))),t1.b) then ~t1.c-(select case min(case when 17 not in (19,19,t1.c) then c when 13 between (19) and t1.e then e else 19 end-19) when cast(avg( -11) AS integer) then max(t1.c)* -min(t1.d) else (count(distinct t1.f)) end from t1) | +t1.f else t1.c end FROM t1 WHERE coalesce((select max(t1.c) from t1 where (abs(t1.b)/abs(a))>=(e)),+ -case when (11<17) then t1.a when t1.a*e=19* -11 and not exists(select 1 from t1 where  -t1.d not between coalesce((select a from t1 where  -t1.c>t1.e), -19) and t1.d and not exists(select 1 from t1 where (t1.e) in (select d from t1 union select t1.c from t1))) then c else a end*a)-t1.b* -(b) in (e,d,b)}
+} {}
+do_test randexpr-2.39 {
+  db eval {SELECT case 13 when coalesce((select t1.a*d+++b | b+(abs(t1.e)/abs(c))+(select count(*) from t1) from t1 where not exists(select 1 from t1 where 17 in (select d from t1 union select t1.f from t1))),t1.b) then ~t1.c-(select case min(case when 17 not in (19,19,t1.c) then c when 13 between (19) and t1.e then e else 19 end-19) when cast(avg( -11) AS integer) then max(t1.c)* -min(t1.d) else (count(distinct t1.f)) end from t1) | +t1.f else t1.c end FROM t1 WHERE NOT (coalesce((select max(t1.c) from t1 where (abs(t1.b)/abs(a))>=(e)),+ -case when (11<17) then t1.a when t1.a*e=19* -11 and not exists(select 1 from t1 where  -t1.d not between coalesce((select a from t1 where  -t1.c>t1.e), -19) and t1.d and not exists(select 1 from t1 where (t1.e) in (select d from t1 union select t1.c from t1))) then c else a end*a)-t1.b* -(b) in (e,d,b))}
+} {300}
+do_test randexpr-2.40 {
+  db eval {SELECT case 13 when coalesce((select t1.a*d+++b & b+(abs(t1.e)/abs(c))+(select count(*) from t1) from t1 where not exists(select 1 from t1 where 17 in (select d from t1 union select t1.f from t1))),t1.b) then ~t1.c-(select case min(case when 17 not in (19,19,t1.c) then c when 13 between (19) and t1.e then e else 19 end-19) when cast(avg( -11) AS integer) then max(t1.c)* -min(t1.d) else (count(distinct t1.f)) end from t1) & +t1.f else t1.c end FROM t1 WHERE NOT (coalesce((select max(t1.c) from t1 where (abs(t1.b)/abs(a))>=(e)),+ -case when (11<17) then t1.a when t1.a*e=19* -11 and not exists(select 1 from t1 where  -t1.d not between coalesce((select a from t1 where  -t1.c>t1.e), -19) and t1.d and not exists(select 1 from t1 where (t1.e) in (select d from t1 union select t1.c from t1))) then c else a end*a)-t1.b* -(b) in (e,d,b))}
+} {300}
+do_test randexpr-2.41 {
+  db eval {SELECT case when not exists(select 1 from t1 where ( -case when b in ((11),coalesce((select f from t1 where (not exists(select 1 from t1 where coalesce((select (t1.a) from t1 where e<=a),11) in (select t1.f from t1 union select 13 from t1)) or t1.a>d)),t1.a),t1.e) or not not exists(select 1 from t1 where (t1.f<=(t1.a))) then e*t1.a else t1.c end)<=d and not (t1.e)>=t1.e) then coalesce((select max( -t1.e) from t1 where t1.d between t1.b and t1.c),t1.d) else t1.c end+13*13 FROM t1 WHERE t1.b=t1.f | 19+coalesce((select max(a) from t1 where case t1.e when case when (11<=11 | t1.f and b>=b or t1.f<=a) then case when c between t1.e and b then e else +t1.f end else  -t1.c end then t1.b else 13 end*13 between t1.f and c and exists(select 1 from t1 where (b not between 11 and a)) and f>=t1.b), -t1.b)-c}
+} {}
+do_test randexpr-2.42 {
+  db eval {SELECT case when not exists(select 1 from t1 where ( -case when b in ((11),coalesce((select f from t1 where (not exists(select 1 from t1 where coalesce((select (t1.a) from t1 where e<=a),11) in (select t1.f from t1 union select 13 from t1)) or t1.a>d)),t1.a),t1.e) or not not exists(select 1 from t1 where (t1.f<=(t1.a))) then e*t1.a else t1.c end)<=d and not (t1.e)>=t1.e) then coalesce((select max( -t1.e) from t1 where t1.d between t1.b and t1.c),t1.d) else t1.c end+13*13 FROM t1 WHERE NOT (t1.b=t1.f | 19+coalesce((select max(a) from t1 where case t1.e when case when (11<=11 | t1.f and b>=b or t1.f<=a) then case when c between t1.e and b then e else +t1.f end else  -t1.c end then t1.b else 13 end*13 between t1.f and c and exists(select 1 from t1 where (b not between 11 and a)) and f>=t1.b), -t1.b)-c)}
+} {569}
+do_test randexpr-2.43 {
+  db eval {SELECT coalesce((select c from t1 where t1.a=case when a=t1.b+~(select case cast(avg( -b*13) AS integer) when max(f*13* -c) then (cast(avg(t1.d) AS integer)) else count(distinct t1.e*c) end from t1) then t1.d | t1.a else case when t1.a-b not between e and  -t1.c* -13 then 19 else d end end),d) | t1.d FROM t1 WHERE +13 in (f,t1.f+t1.f, -coalesce((select max(t1.f) from t1 where (t1.a-13)<=(case (select count(*) from t1) when 13 then  -+t1.e |  -(coalesce((select max(~coalesce((select ( -13) from t1 where  -c<(11) or 11 between a and t1.d),13)*t1.d) from t1 where d not between b and 13),19))*t1.a else 13 end-b-c)),t1.e)-19)}
+} {}
+do_test randexpr-2.44 {
+  db eval {SELECT coalesce((select c from t1 where t1.a=case when a=t1.b+~(select case cast(avg( -b*13) AS integer) when max(f*13* -c) then (cast(avg(t1.d) AS integer)) else count(distinct t1.e*c) end from t1) then t1.d | t1.a else case when t1.a-b not between e and  -t1.c* -13 then 19 else d end end),d) | t1.d FROM t1 WHERE NOT (+13 in (f,t1.f+t1.f, -coalesce((select max(t1.f) from t1 where (t1.a-13)<=(case (select count(*) from t1) when 13 then  -+t1.e |  -(coalesce((select max(~coalesce((select ( -13) from t1 where  -c<(11) or 11 between a and t1.d),13)*t1.d) from t1 where d not between b and 13),19))*t1.a else 13 end-b-c)),t1.e)-19))}
+} {400}
+do_test randexpr-2.45 {
+  db eval {SELECT coalesce((select c from t1 where t1.a=case when a=t1.b+~(select case cast(avg( -b*13) AS integer) when max(f*13* -c) then (cast(avg(t1.d) AS integer)) else count(distinct t1.e*c) end from t1) then t1.d & t1.a else case when t1.a-b not between e and  -t1.c* -13 then 19 else d end end),d) & t1.d FROM t1 WHERE NOT (+13 in (f,t1.f+t1.f, -coalesce((select max(t1.f) from t1 where (t1.a-13)<=(case (select count(*) from t1) when 13 then  -+t1.e |  -(coalesce((select max(~coalesce((select ( -13) from t1 where  -c<(11) or 11 between a and t1.d),13)*t1.d) from t1 where d not between b and 13),19))*t1.a else 13 end-b-c)),t1.e)-19))}
+} {400}
+do_test randexpr-2.46 {
+  db eval {SELECT case ~11-13 when 11-d-case when t1.f*+a-t1.a-t1.f=t1.a then a when t1.f between 19-t1.a+coalesce((select a from t1 where e in (select case  -max(t1.c) when count(*) then max(t1.d) else  -(cast(avg((t1.e)) AS integer)) end from t1 union select (max(t1.b)) from t1)), -b) and e or ((11<c)) or e>=t1.d then t1.b else a end+13+(t1.c) then a else  -d end FROM t1 WHERE exists(select 1 from t1 where not exists(select 1 from t1 where (not +t1.b-~a*(d*t1.e | + -coalesce((select t1.c from t1 where t1.b*case t1.b when f then  -a*b else e end<>a+t1.a),17))+e*t1.e*11 | t1.a not between 13 and  -t1.a and b between d and  -f)))}
+} {-400}
+do_test randexpr-2.47 {
+  db eval {SELECT case ~11-13 when 11-d-case when t1.f*+a-t1.a-t1.f=t1.a then a when t1.f between 19-t1.a+coalesce((select a from t1 where e in (select case  -max(t1.c) when count(*) then max(t1.d) else  -(cast(avg((t1.e)) AS integer)) end from t1 union select (max(t1.b)) from t1)), -b) and e or ((11<c)) or e>=t1.d then t1.b else a end+13+(t1.c) then a else  -d end FROM t1 WHERE NOT (exists(select 1 from t1 where not exists(select 1 from t1 where (not +t1.b-~a*(d*t1.e | + -coalesce((select t1.c from t1 where t1.b*case t1.b when f then  -a*b else e end<>a+t1.a),17))+e*t1.e*11 | t1.a not between 13 and  -t1.a and b between d and  -f))))}
+} {}
+do_test randexpr-2.48 {
+  db eval {SELECT 11++(case 19 when t1.c-19-coalesce((select t1.b from t1 where e*19-t1.e<=+case when c in (select 19 | 17 from t1 union select 11 from t1) then (abs(a)/abs(19)) when a*t1.d>19 or (11) not in (b,t1.a,t1.a) then b else b end-11),f) then 13 else 11 end-t1.e*a) FROM t1 WHERE f in (17,t1.f | coalesce((select max(t1.e) from t1 where not 17 in (select f from t1 union select +17 from t1)),b+coalesce((select max(b) from t1 where 19 in (select case min(t1.d) when (count(*)) then min(d) else  -min(d) end from t1 union select max(d) from t1)),f)*f-17+19),b) or d<=f or t1.f>=11 or t1.b<=11 or t1.c<=11 or t1.b<=b}
+} {-49978}
+do_test randexpr-2.49 {
+  db eval {SELECT 11++(case 19 when t1.c-19-coalesce((select t1.b from t1 where e*19-t1.e<=+case when c in (select 19 | 17 from t1 union select 11 from t1) then (abs(a)/abs(19)) when a*t1.d>19 or (11) not in (b,t1.a,t1.a) then b else b end-11),f) then 13 else 11 end-t1.e*a) FROM t1 WHERE NOT (f in (17,t1.f | coalesce((select max(t1.e) from t1 where not 17 in (select f from t1 union select +17 from t1)),b+coalesce((select max(b) from t1 where 19 in (select case min(t1.d) when (count(*)) then min(d) else  -min(d) end from t1 union select max(d) from t1)),f)*f-17+19),b) or d<=f or t1.f>=11 or t1.b<=11 or t1.c<=11 or t1.b<=b)}
+} {}
+do_test randexpr-2.50 {
+  db eval {SELECT 11++(case 19 when t1.c-19-coalesce((select t1.b from t1 where e*19-t1.e<=+case when c in (select 19 & 17 from t1 union select 11 from t1) then (abs(a)/abs(19)) when a*t1.d>19 or (11) not in (b,t1.a,t1.a) then b else b end-11),f) then 13 else 11 end-t1.e*a) FROM t1 WHERE f in (17,t1.f | coalesce((select max(t1.e) from t1 where not 17 in (select f from t1 union select +17 from t1)),b+coalesce((select max(b) from t1 where 19 in (select case min(t1.d) when (count(*)) then min(d) else  -min(d) end from t1 union select max(d) from t1)),f)*f-17+19),b) or d<=f or t1.f>=11 or t1.b<=11 or t1.c<=11 or t1.b<=b}
+} {-49978}
+do_test randexpr-2.51 {
+  db eval {SELECT  -c-coalesce((select max(t1.a) from t1 where (a>17-t1.a) and (select abs(min(t1.a))*case abs(case (((min((t1.c))))+min(a)) when count(distinct f) then min(11) else count(distinct b) end) when min(t1.f) then (count(distinct t1.b)) else  -count(*) end from t1)<>case d when +(select ((min(t1.a))) from t1)-(abs(c)/abs(f)) then b else 17 end+t1.c),coalesce((select t1.d from t1 where d>19),t1.a)) FROM t1 WHERE b+(coalesce((select max(a) from t1 where exists(select 1 from t1 where t1.b<=c-(select ~~max((abs(e)/abs(13 | (t1.e)-c-19))) from t1) or d in (select t1.b from t1 union select d from t1)) or 13 in (select cast(avg(19) AS integer) from t1 union select ( -cast(avg(19) AS integer) | count(*)*min(19)) from t1) or 19<=11),t1.c))-t1.d-c>f}
+} {}
+do_test randexpr-2.52 {
+  db eval {SELECT  -c-coalesce((select max(t1.a) from t1 where (a>17-t1.a) and (select abs(min(t1.a))*case abs(case (((min((t1.c))))+min(a)) when count(distinct f) then min(11) else count(distinct b) end) when min(t1.f) then (count(distinct t1.b)) else  -count(*) end from t1)<>case d when +(select ((min(t1.a))) from t1)-(abs(c)/abs(f)) then b else 17 end+t1.c),coalesce((select t1.d from t1 where d>19),t1.a)) FROM t1 WHERE NOT (b+(coalesce((select max(a) from t1 where exists(select 1 from t1 where t1.b<=c-(select ~~max((abs(e)/abs(13 | (t1.e)-c-19))) from t1) or d in (select t1.b from t1 union select d from t1)) or 13 in (select cast(avg(19) AS integer) from t1 union select ( -cast(avg(19) AS integer) | count(*)*min(19)) from t1) or 19<=11),t1.c))-t1.d-c>f)}
+} {-400}
+do_test randexpr-2.53 {
+  db eval {SELECT case when t1.b+coalesce((select max(a) from t1 where exists(select 1 from t1 where not not t1.d>19)),13) | case when f in (select a from t1 union select case when (a)<>t1.c then c when not exists(select 1 from t1 where t1.c not between 17 and  -(t1.d)) then f else (11) end from t1) then t1.c when (not exists(select 1 from t1 where 17 not between t1.f and a)) and d=b then t1.c else d end<=19 and (t1.c<>c and (13) not between t1.d and t1.c) and a>= -b or 11>13 and c<>13 then  -f else d end FROM t1 WHERE (case when (17 not in (f*11,+coalesce((select max(b-b) from t1 where t1.c+f not between 11 and t1.d),13),c)) or (t1.e in (select ~min(t1.f) from t1 union select ~count(*) from t1) and exists(select 1 from t1 where (not f>=19 and 17 not between a and t1.e)) or (e) not in (e,d,13) or t1.d>=f) then e when 17 between t1.c and 13 then case when 11<>19 then t1.d else t1.a end else b end in (select  -t1.a from t1 union select a from t1))}
+} {}
+do_test randexpr-2.54 {
+  db eval {SELECT case when t1.b+coalesce((select max(a) from t1 where exists(select 1 from t1 where not not t1.d>19)),13) | case when f in (select a from t1 union select case when (a)<>t1.c then c when not exists(select 1 from t1 where t1.c not between 17 and  -(t1.d)) then f else (11) end from t1) then t1.c when (not exists(select 1 from t1 where 17 not between t1.f and a)) and d=b then t1.c else d end<=19 and (t1.c<>c and (13) not between t1.d and t1.c) and a>= -b or 11>13 and c<>13 then  -f else d end FROM t1 WHERE NOT ((case when (17 not in (f*11,+coalesce((select max(b-b) from t1 where t1.c+f not between 11 and t1.d),13),c)) or (t1.e in (select ~min(t1.f) from t1 union select ~count(*) from t1) and exists(select 1 from t1 where (not f>=19 and 17 not between a and t1.e)) or (e) not in (e,d,13) or t1.d>=f) then e when 17 between t1.c and 13 then case when 11<>19 then t1.d else t1.a end else b end in (select  -t1.a from t1 union select a from t1)))}
+} {400}
+do_test randexpr-2.55 {
+  db eval {SELECT case when t1.b+coalesce((select max(a) from t1 where exists(select 1 from t1 where not not t1.d>19)),13) & case when f in (select a from t1 union select case when (a)<>t1.c then c when not exists(select 1 from t1 where t1.c not between 17 and  -(t1.d)) then f else (11) end from t1) then t1.c when (not exists(select 1 from t1 where 17 not between t1.f and a)) and d=b then t1.c else d end<=19 and (t1.c<>c and (13) not between t1.d and t1.c) and a>= -b or 11>13 and c<>13 then  -f else d end FROM t1 WHERE NOT ((case when (17 not in (f*11,+coalesce((select max(b-b) from t1 where t1.c+f not between 11 and t1.d),13),c)) or (t1.e in (select ~min(t1.f) from t1 union select ~count(*) from t1) and exists(select 1 from t1 where (not f>=19 and 17 not between a and t1.e)) or (e) not in (e,d,13) or t1.d>=f) then e when 17 between t1.c and 13 then case when 11<>19 then t1.d else t1.a end else b end in (select  -t1.a from t1 union select a from t1)))}
+} {400}
+do_test randexpr-2.56 {
+  db eval {SELECT t1.e+case when d not between f and case when a in (select t1.c from t1 union select t1.e from t1) or coalesce((select 19 from t1 where 17<=t1.d or 19*t1.f*t1.b<>t1.d | t1.d | t1.a),t1.b)*case when (t1.a) in (t1.d,t1.a,a) then  -c when 17<13 then t1.f else 17 end-t1.f*e not in (19,t1.d,17) then 19 else t1.e end then  -b else t1.b end FROM t1 WHERE (coalesce((select t1.d-coalesce((select max(coalesce((select max(c+13) from t1 where ~13*t1.b in (select abs(abs(abs((cast(avg( -e) AS integer)))))- -count(distinct (13))*max(13) from t1 union select count(distinct 19) from t1)), -t1.f)) from t1 where exists(select 1 from t1 where 17 in (t1.b,13,b))),b)+d+t1.a from t1 where d not in (13,t1.b,b)),17) not between 11 and e or not 17 between d and d)}
+} {300}
+do_test randexpr-2.57 {
+  db eval {SELECT t1.e+case when d not between f and case when a in (select t1.c from t1 union select t1.e from t1) or coalesce((select 19 from t1 where 17<=t1.d or 19*t1.f*t1.b<>t1.d | t1.d | t1.a),t1.b)*case when (t1.a) in (t1.d,t1.a,a) then  -c when 17<13 then t1.f else 17 end-t1.f*e not in (19,t1.d,17) then 19 else t1.e end then  -b else t1.b end FROM t1 WHERE NOT ((coalesce((select t1.d-coalesce((select max(coalesce((select max(c+13) from t1 where ~13*t1.b in (select abs(abs(abs((cast(avg( -e) AS integer)))))- -count(distinct (13))*max(13) from t1 union select count(distinct 19) from t1)), -t1.f)) from t1 where exists(select 1 from t1 where 17 in (t1.b,13,b))),b)+d+t1.a from t1 where d not in (13,t1.b,b)),17) not between 11 and e or not 17 between d and d))}
+} {}
+do_test randexpr-2.58 {
+  db eval {SELECT t1.e+case when d not between f and case when a in (select t1.c from t1 union select t1.e from t1) or coalesce((select 19 from t1 where 17<=t1.d or 19*t1.f*t1.b<>t1.d & t1.d & t1.a),t1.b)*case when (t1.a) in (t1.d,t1.a,a) then  -c when 17<13 then t1.f else 17 end-t1.f*e not in (19,t1.d,17) then 19 else t1.e end then  -b else t1.b end FROM t1 WHERE (coalesce((select t1.d-coalesce((select max(coalesce((select max(c+13) from t1 where ~13*t1.b in (select abs(abs(abs((cast(avg( -e) AS integer)))))- -count(distinct (13))*max(13) from t1 union select count(distinct 19) from t1)), -t1.f)) from t1 where exists(select 1 from t1 where 17 in (t1.b,13,b))),b)+d+t1.a from t1 where d not in (13,t1.b,b)),17) not between 11 and e or not 17 between d and d)}
+} {300}
+do_test randexpr-2.59 {
+  db eval {SELECT coalesce((select max(t1.f*case when not exists(select 1 from t1 where exists(select 1 from t1 where (select count(distinct 11) from t1) between coalesce((select max(c) from t1 where t1.e=t1.a+17),a) and t1.b) or c not in (t1.e,19,t1.e)) then 13 when exists(select 1 from t1 where t1.a between 19 and  -c) then coalesce((select coalesce((select max((( -d))) from t1 where 17 not in (t1.d,e,t1.e)),e) from t1 where c= -f),( -c)) else t1.f end) from t1 where not (11 between a and t1.e)),19) FROM t1 WHERE case c when case when (exists(select 1 from t1 where t1.d<>coalesce((select 13 from t1 where (t1.b>+e)),(17))+coalesce((select 13 from t1 where exists(select 1 from t1 where 13 in (t1.b+c,case when f between t1.f and b then t1.b else f end,(11)))),f)-17-17)) then  -c-(c) when 11 in (b,f,(t1.d)) then t1.c else t1.b end then t1.d else 11 end in (select  -count(*) from t1 union select count(*) from t1)}
+} {}
+do_test randexpr-2.60 {
+  db eval {SELECT coalesce((select max(t1.f*case when not exists(select 1 from t1 where exists(select 1 from t1 where (select count(distinct 11) from t1) between coalesce((select max(c) from t1 where t1.e=t1.a+17),a) and t1.b) or c not in (t1.e,19,t1.e)) then 13 when exists(select 1 from t1 where t1.a between 19 and  -c) then coalesce((select coalesce((select max((( -d))) from t1 where 17 not in (t1.d,e,t1.e)),e) from t1 where c= -f),( -c)) else t1.f end) from t1 where not (11 between a and t1.e)),19) FROM t1 WHERE NOT (case c when case when (exists(select 1 from t1 where t1.d<>coalesce((select 13 from t1 where (t1.b>+e)),(17))+coalesce((select 13 from t1 where exists(select 1 from t1 where 13 in (t1.b+c,case when f between t1.f and b then t1.b else f end,(11)))),f)-17-17)) then  -c-(c) when 11 in (b,f,(t1.d)) then t1.c else t1.b end then t1.d else 11 end in (select  -count(*) from t1 union select count(*) from t1))}
+} {360000}
+do_test randexpr-2.61 {
+  db eval {SELECT case when t1.a-coalesce((select t1.b from t1 where (d<=~a)),t1.b+t1.d | 19+13)-t1.a | ~coalesce((select ~17 from t1 where not exists(select 1 from t1 where ~case when 13 in (select +(cast(avg(b) AS integer)) from t1 union select count(*) from t1) then 17 when 11 not in (c,t1.a,t1.a) then e else e end*a not between 11 and c)),t1.c) in (11,t1.a,e) then t1.f when 19 in (select ~count(distinct d) from t1 union select cast(avg(19) AS integer) from t1) then t1.d else 19 end FROM t1 WHERE not exists(select 1 from t1 where (select count(*) from t1)+coalesce((select max(a) from t1 where t1.a between (abs(case when exists(select 1 from t1 where case when t1.e=case when 19 between 11 and e then t1.f else a end then t1.e else t1.b end in (select count(distinct d) | max(11)*abs(case count(*) when max(f) then cast(avg(e) AS integer) else count(distinct t1.e) end) from t1 union select  -cast(avg(c) AS integer) from t1)) then (select  -min(e) from t1) when (c>e) then t1.d else f end)/abs(b)) and (17)),e) not between t1.a and d)}
+} {}
+do_test randexpr-2.62 {
+  db eval {SELECT case when t1.a-coalesce((select t1.b from t1 where (d<=~a)),t1.b+t1.d | 19+13)-t1.a | ~coalesce((select ~17 from t1 where not exists(select 1 from t1 where ~case when 13 in (select +(cast(avg(b) AS integer)) from t1 union select count(*) from t1) then 17 when 11 not in (c,t1.a,t1.a) then e else e end*a not between 11 and c)),t1.c) in (11,t1.a,e) then t1.f when 19 in (select ~count(distinct d) from t1 union select cast(avg(19) AS integer) from t1) then t1.d else 19 end FROM t1 WHERE NOT (not exists(select 1 from t1 where (select count(*) from t1)+coalesce((select max(a) from t1 where t1.a between (abs(case when exists(select 1 from t1 where case when t1.e=case when 19 between 11 and e then t1.f else a end then t1.e else t1.b end in (select count(distinct d) | max(11)*abs(case count(*) when max(f) then cast(avg(e) AS integer) else count(distinct t1.e) end) from t1 union select  -cast(avg(c) AS integer) from t1)) then (select  -min(e) from t1) when (c>e) then t1.d else f end)/abs(b)) and (17)),e) not between t1.a and d))}
+} {400}
+do_test randexpr-2.63 {
+  db eval {SELECT case when t1.a-coalesce((select t1.b from t1 where (d<=~a)),t1.b+t1.d & 19+13)-t1.a & ~coalesce((select ~17 from t1 where not exists(select 1 from t1 where ~case when 13 in (select +(cast(avg(b) AS integer)) from t1 union select count(*) from t1) then 17 when 11 not in (c,t1.a,t1.a) then e else e end*a not between 11 and c)),t1.c) in (11,t1.a,e) then t1.f when 19 in (select ~count(distinct d) from t1 union select cast(avg(19) AS integer) from t1) then t1.d else 19 end FROM t1 WHERE NOT (not exists(select 1 from t1 where (select count(*) from t1)+coalesce((select max(a) from t1 where t1.a between (abs(case when exists(select 1 from t1 where case when t1.e=case when 19 between 11 and e then t1.f else a end then t1.e else t1.b end in (select count(distinct d) | max(11)*abs(case count(*) when max(f) then cast(avg(e) AS integer) else count(distinct t1.e) end) from t1 union select  -cast(avg(c) AS integer) from t1)) then (select  -min(e) from t1) when (c>e) then t1.d else f end)/abs(b)) and (17)),e) not between t1.a and d))}
+} {400}
+do_test randexpr-2.64 {
+  db eval {SELECT case when 11 in (select max(f) from t1 union select min(19++13) | min(t1.c) from t1) and (e in (select t1.d from t1 union select t1.a | 17*case e when coalesce((select max(a) from t1 where b not in (b,f,d) or t1.a<=f),11) then t1.a else t1.b end from t1) and  -a not between b and d) then d when  -t1.f=b or t1.b between  -f and  -d then 19 else d end+d FROM t1 WHERE case when (coalesce((select case (select max(t1.b) from t1) when (b* -t1.e+e*e-t1.a) then c else a end from t1 where 17 in (select min(t1.d)-abs(count(*)) from t1 union select count(distinct c) from t1)),t1.d)=(t1.d)) and e in (select  -min(t1.b) from t1 union select count(distinct 11) from t1) and a< - -17 then t1.d | 11 else 19 end in (select 17 from t1 union select d from t1)}
+} {}
+do_test randexpr-2.65 {
+  db eval {SELECT case when 11 in (select max(f) from t1 union select min(19++13) | min(t1.c) from t1) and (e in (select t1.d from t1 union select t1.a | 17*case e when coalesce((select max(a) from t1 where b not in (b,f,d) or t1.a<=f),11) then t1.a else t1.b end from t1) and  -a not between b and d) then d when  -t1.f=b or t1.b between  -f and  -d then 19 else d end+d FROM t1 WHERE NOT (case when (coalesce((select case (select max(t1.b) from t1) when (b* -t1.e+e*e-t1.a) then c else a end from t1 where 17 in (select min(t1.d)-abs(count(*)) from t1 union select count(distinct c) from t1)),t1.d)=(t1.d)) and e in (select  -min(t1.b) from t1 union select count(distinct 11) from t1) and a< - -17 then t1.d | 11 else 19 end in (select 17 from t1 union select d from t1))}
+} {800}
+do_test randexpr-2.66 {
+  db eval {SELECT case when 11 in (select max(f) from t1 union select min(19++13) & min(t1.c) from t1) and (e in (select t1.d from t1 union select t1.a & 17*case e when coalesce((select max(a) from t1 where b not in (b,f,d) or t1.a<=f),11) then t1.a else t1.b end from t1) and  -a not between b and d) then d when  -t1.f=b or t1.b between  -f and  -d then 19 else d end+d FROM t1 WHERE NOT (case when (coalesce((select case (select max(t1.b) from t1) when (b* -t1.e+e*e-t1.a) then c else a end from t1 where 17 in (select min(t1.d)-abs(count(*)) from t1 union select count(distinct c) from t1)),t1.d)=(t1.d)) and e in (select  -min(t1.b) from t1 union select count(distinct 11) from t1) and a< - -17 then t1.d | 11 else 19 end in (select 17 from t1 union select d from t1))}
+} {800}
+do_test randexpr-2.67 {
+  db eval {SELECT (abs((select min(13) from t1))/abs(coalesce((select t1.e from t1 where coalesce((select t1.f from t1 where  -11<=b-t1.c*case when (d)-t1.f+t1.e-13<>t1.b then 11 when exists(select 1 from t1 where t1.d<>((t1.b)) or t1.a not between d and 13) or t1.b<>t1.c then t1.e else  -t1.d end+t1.a or t1.c not between f and d),e)<>e), -f))) FROM t1 WHERE t1.c<>(select min((abs(( -19-t1.b*13- -++~t1.f*d-17*19*11))/abs(17))) from t1)}
+} {0}
+do_test randexpr-2.68 {
+  db eval {SELECT (abs((select min(13) from t1))/abs(coalesce((select t1.e from t1 where coalesce((select t1.f from t1 where  -11<=b-t1.c*case when (d)-t1.f+t1.e-13<>t1.b then 11 when exists(select 1 from t1 where t1.d<>((t1.b)) or t1.a not between d and 13) or t1.b<>t1.c then t1.e else  -t1.d end+t1.a or t1.c not between f and d),e)<>e), -f))) FROM t1 WHERE NOT (t1.c<>(select min((abs(( -19-t1.b*13- -++~t1.f*d-17*19*11))/abs(17))) from t1))}
+} {}
+do_test randexpr-2.69 {
+  db eval {SELECT case d-case when c< -case when b<=f or coalesce((select t1.e from t1 where 11<coalesce((select b+(t1.f)+t1.e-d from t1 where (t1.c<f)),t1.d)),t1.e)>e then 19 when not exists(select 1 from t1 where not exists(select 1 from t1 where t1.d>=d)) then t1.f else 17 end then e when not exists(select 1 from t1 where d=b) then t1.c else f end when 17 then 19 else t1.f end FROM t1 WHERE coalesce((select max(+t1.d) from t1 where e<>e or not exists(select 1 from t1 where not exists(select 1 from t1 where (abs(f)/abs(f))++t1.b in (select case abs(cast(avg(e) AS integer)) when cast(avg(17) AS integer) | max(d) | cast(avg(t1.e) AS integer) | min(t1.e) then (cast(avg(19) AS integer)) else cast(avg(c) AS integer) end from t1 union select cast(avg(t1.f) AS integer) from t1))) and t1.a between t1.f and b or not 17<13 or  -11= -t1.f or t1.f between c and 19),d)+(t1.d) not between b and e}
+} {600}
+do_test randexpr-2.70 {
+  db eval {SELECT case d-case when c< -case when b<=f or coalesce((select t1.e from t1 where 11<coalesce((select b+(t1.f)+t1.e-d from t1 where (t1.c<f)),t1.d)),t1.e)>e then 19 when not exists(select 1 from t1 where not exists(select 1 from t1 where t1.d>=d)) then t1.f else 17 end then e when not exists(select 1 from t1 where d=b) then t1.c else f end when 17 then 19 else t1.f end FROM t1 WHERE NOT (coalesce((select max(+t1.d) from t1 where e<>e or not exists(select 1 from t1 where not exists(select 1 from t1 where (abs(f)/abs(f))++t1.b in (select case abs(cast(avg(e) AS integer)) when cast(avg(17) AS integer) | max(d) | cast(avg(t1.e) AS integer) | min(t1.e) then (cast(avg(19) AS integer)) else cast(avg(c) AS integer) end from t1 union select cast(avg(t1.f) AS integer) from t1))) and t1.a between t1.f and b or not 17<13 or  -11= -t1.f or t1.f between c and 19),d)+(t1.d) not between b and e)}
+} {}
+do_test randexpr-2.71 {
+  db eval {SELECT case when t1.e in (select abs(max(case a+case when t1.a>=e+ -c then a else t1.b end+t1.a when t1.f then 19 else  -19 end)+abs( -count(distinct t1.c))+~(count(distinct t1.b)))-min(b) from t1 union select max(f) from t1) and case t1.e when  -t1.c then 19 else b end<t1.d then e+(d) when exists(select 1 from t1 where 19 not between t1.e and (19)) then  -19 else t1.c end FROM t1 WHERE (exists(select 1 from t1 where t1.e between t1.c-t1.d and (t1.a)) and ((not case 19 when 11 then e else ~d | t1.a*19 end*((b))>=t1.e))) or c in (select f from t1 union select 13 from t1) and (b)< -t1.c and f in (select max(13) from t1 union select ~+abs(count(distinct e)*abs(((count(*)))*((max(f))))) from t1)}
+} {}
+do_test randexpr-2.72 {
+  db eval {SELECT case when t1.e in (select abs(max(case a+case when t1.a>=e+ -c then a else t1.b end+t1.a when t1.f then 19 else  -19 end)+abs( -count(distinct t1.c))+~(count(distinct t1.b)))-min(b) from t1 union select max(f) from t1) and case t1.e when  -t1.c then 19 else b end<t1.d then e+(d) when exists(select 1 from t1 where 19 not between t1.e and (19)) then  -19 else t1.c end FROM t1 WHERE NOT ((exists(select 1 from t1 where t1.e between t1.c-t1.d and (t1.a)) and ((not case 19 when 11 then e else ~d | t1.a*19 end*((b))>=t1.e))) or c in (select f from t1 union select 13 from t1) and (b)< -t1.c and f in (select max(13) from t1 union select ~+abs(count(distinct e)*abs(((count(*)))*((max(f))))) from t1))}
+} {-19}
+do_test randexpr-2.73 {
+  db eval {SELECT c*case when t1.a in (select ~count(*) from t1 union select  -count(distinct ~case (abs(11)/abs(b-(coalesce((select 17-t1.a from t1 where not t1.d=t1.d),(abs(11)/abs(a)))))) when case when t1.d between 19 and c and t1.b between 11 and t1.a then 13 else (13) end then (13) else 19 end-19*13+11) from t1) then t1.a when t1.f<=t1.e then f else b end-19-c+f FROM t1 WHERE t1.b>=c+case when exists(select 1 from t1 where a>=+f- -c*e+coalesce((select max(b) from t1 where (b not between (t1.b) and 19) or t1.f<11),d)*f | t1.e+t1.b) then ( -t1.e)-19 when ((t1.a in (select 19 from t1 union select t1.f from t1) or b<c and b> -17)) then f else f end | d}
+} {}
+do_test randexpr-2.74 {
+  db eval {SELECT c*case when t1.a in (select ~count(*) from t1 union select  -count(distinct ~case (abs(11)/abs(b-(coalesce((select 17-t1.a from t1 where not t1.d=t1.d),(abs(11)/abs(a)))))) when case when t1.d between 19 and c and t1.b between 11 and t1.a then 13 else (13) end then (13) else 19 end-19*13+11) from t1) then t1.a when t1.f<=t1.e then f else b end-19-c+f FROM t1 WHERE NOT (t1.b>=c+case when exists(select 1 from t1 where a>=+f- -c*e+coalesce((select max(b) from t1 where (b not between (t1.b) and 19) or t1.f<11),d)*f | t1.e+t1.b) then ( -t1.e)-19 when ((t1.a in (select 19 from t1 union select t1.f from t1) or b<c and b> -17)) then f else f end | d)}
+} {60281}
+do_test randexpr-2.75 {
+  db eval {SELECT (abs(case when a>=b then t1.c-case when not exists(select 1 from t1 where case d when +17 then 19+c else 11 end-(abs((select  - -cast(avg(case when (11- -(abs(e)/abs(13))-t1.f<t1.e) then t1.c+d else a end-t1.c) AS integer) from t1))/abs(t1.a))<=b) then  -e+d else (t1.c) end else 19 end)/abs(c)) FROM t1 WHERE f<>11}
+} {0}
+do_test randexpr-2.76 {
+  db eval {SELECT (abs(case when a>=b then t1.c-case when not exists(select 1 from t1 where case d when +17 then 19+c else 11 end-(abs((select  - -cast(avg(case when (11- -(abs(e)/abs(13))-t1.f<t1.e) then t1.c+d else a end-t1.c) AS integer) from t1))/abs(t1.a))<=b) then  -e+d else (t1.c) end else 19 end)/abs(c)) FROM t1 WHERE NOT (f<>11)}
+} {}
+do_test randexpr-2.77 {
+  db eval {SELECT  -coalesce((select max(e-t1.b) from t1 where t1.e<11 and t1.b | e in ((abs(13)/abs(t1.b)),(abs((+17-case when t1.c | 13*(d) | b<>a or ((t1.e)>=a) then t1.b-t1.e when not exists(select 1 from t1 where 17<13) then  -(13) else 17 end*13))/abs(13)),t1.c)),t1.e) | c FROM t1 WHERE not exists(select 1 from t1 where 17<=(select (case (~+abs(cast(avg((t1.e)-17 | b) AS integer))-((case  -cast(avg(case when ~t1.b in (select d from t1 union select 19 from t1) then b when 13 in (t1.f,c,t1.b) then c else f end) AS integer)+count(distinct t1.f)+count(distinct t1.d) when count(*) then ((max(c))) else count(*) end)*cast(avg(t1.e) AS integer))) when ((cast(avg(a) AS integer))) then  -max(d) else ((count(*))) end) from t1))}
+} {-212}
+do_test randexpr-2.78 {
+  db eval {SELECT  -coalesce((select max(e-t1.b) from t1 where t1.e<11 and t1.b | e in ((abs(13)/abs(t1.b)),(abs((+17-case when t1.c | 13*(d) | b<>a or ((t1.e)>=a) then t1.b-t1.e when not exists(select 1 from t1 where 17<13) then  -(13) else 17 end*13))/abs(13)),t1.c)),t1.e) | c FROM t1 WHERE NOT (not exists(select 1 from t1 where 17<=(select (case (~+abs(cast(avg((t1.e)-17 | b) AS integer))-((case  -cast(avg(case when ~t1.b in (select d from t1 union select 19 from t1) then b when 13 in (t1.f,c,t1.b) then c else f end) AS integer)+count(distinct t1.f)+count(distinct t1.d) when count(*) then ((max(c))) else count(*) end)*cast(avg(t1.e) AS integer))) when ((cast(avg(a) AS integer))) then  -max(d) else ((count(*))) end) from t1)))}
+} {}
+do_test randexpr-2.79 {
+  db eval {SELECT  -coalesce((select max(e-t1.b) from t1 where t1.e<11 and t1.b & e in ((abs(13)/abs(t1.b)),(abs((+17-case when t1.c & 13*(d) & b<>a or ((t1.e)>=a) then t1.b-t1.e when not exists(select 1 from t1 where 17<13) then  -(13) else 17 end*13))/abs(13)),t1.c)),t1.e) & c FROM t1 WHERE not exists(select 1 from t1 where 17<=(select (case (~+abs(cast(avg((t1.e)-17 | b) AS integer))-((case  -cast(avg(case when ~t1.b in (select d from t1 union select 19 from t1) then b when 13 in (t1.f,c,t1.b) then c else f end) AS integer)+count(distinct t1.f)+count(distinct t1.d) when count(*) then ((max(c))) else count(*) end)*cast(avg(t1.e) AS integer))) when ((cast(avg(a) AS integer))) then  -max(d) else ((count(*))) end) from t1))}
+} {12}
+do_test randexpr-2.80 {
+  db eval {SELECT 17-coalesce((select c+t1.f from t1 where (select count(distinct d)-abs(min((select case  - -count(*) when  -max(19) then  -count(*) else count(*) end from t1))-count(*)) from t1)-t1.a+case when (abs(t1.e)/abs(t1.e)) not in (a,t1.a,19) and (b between 19 and  -t1.c) then 17 else c end-19+t1.e*13<= -(t1.a)),11)-t1.d-c FROM t1 WHERE ((t1.d in ((select +cast(avg(coalesce((select max(coalesce((select max(a) from t1 where not a in (b,~(select ~count(*) from t1),case (select +max(11) |  -count(*) from t1) when 17*t1.f*17 then b else (t1.b) end+f | 17)),e)) from t1 where not exists(select 1 from t1 where 17 between a and a)),(19))) AS integer) from t1),coalesce((select max(e) from t1 where t1.e<>11),b),t1.d)))}
+} {-694}
+do_test randexpr-2.81 {
+  db eval {SELECT 17-coalesce((select c+t1.f from t1 where (select count(distinct d)-abs(min((select case  - -count(*) when  -max(19) then  -count(*) else count(*) end from t1))-count(*)) from t1)-t1.a+case when (abs(t1.e)/abs(t1.e)) not in (a,t1.a,19) and (b between 19 and  -t1.c) then 17 else c end-19+t1.e*13<= -(t1.a)),11)-t1.d-c FROM t1 WHERE NOT (((t1.d in ((select +cast(avg(coalesce((select max(coalesce((select max(a) from t1 where not a in (b,~(select ~count(*) from t1),case (select +max(11) |  -count(*) from t1) when 17*t1.f*17 then b else (t1.b) end+f | 17)),e)) from t1 where not exists(select 1 from t1 where 17 between a and a)),(19))) AS integer) from t1),coalesce((select max(e) from t1 where t1.e<>11),b),t1.d))))}
+} {}
+do_test randexpr-2.82 {
+  db eval {SELECT case (t1.a) when e then t1.a else t1.d end+(b)*t1.c | (select ~count(distinct (select count(distinct t1.f) from t1)) from t1)* -case c*t1.b when 19 then t1.d else (t1.b) | case when not (e)*f in (select count(distinct a)-count(distinct c) | min(a) from t1 union select  -count(*) from t1) and (t1.f in (d, -t1.c,f)) then e when t1.c not in (t1.b,t1.e,b) then t1.e else f end end FROM t1 WHERE t1.d<>coalesce((select max(case when exists(select 1 from t1 where f<=e | b) then (select min(+t1.f) from t1) else 11 end) from t1 where +case when t1.e=c then  -t1.c else t1.a end-t1.a-11-f in (select (case  -min(a) when count(*)*(( -+abs(cast(avg(a) AS integer))*max((17))) | max(19)) then min(11) else min(a) end | count(distinct  -d)) from t1 union select min(t1.e) from t1)),t1.c)}
+} {60408}
+do_test randexpr-2.83 {
+  db eval {SELECT case (t1.a) when e then t1.a else t1.d end+(b)*t1.c | (select ~count(distinct (select count(distinct t1.f) from t1)) from t1)* -case c*t1.b when 19 then t1.d else (t1.b) | case when not (e)*f in (select count(distinct a)-count(distinct c) | min(a) from t1 union select  -count(*) from t1) and (t1.f in (d, -t1.c,f)) then e when t1.c not in (t1.b,t1.e,b) then t1.e else f end end FROM t1 WHERE NOT (t1.d<>coalesce((select max(case when exists(select 1 from t1 where f<=e | b) then (select min(+t1.f) from t1) else 11 end) from t1 where +case when t1.e=c then  -t1.c else t1.a end-t1.a-11-f in (select (case  -min(a) when count(*)*(( -+abs(cast(avg(a) AS integer))*max((17))) | max(19)) then min(11) else min(a) end | count(distinct  -d)) from t1 union select min(t1.e) from t1)),t1.c))}
+} {}
+do_test randexpr-2.84 {
+  db eval {SELECT case (t1.a) when e then t1.a else t1.d end+(b)*t1.c & (select ~count(distinct (select count(distinct t1.f) from t1)) from t1)* -case c*t1.b when 19 then t1.d else (t1.b) & case when not (e)*f in (select count(distinct a)-count(distinct c) & min(a) from t1 union select  -count(*) from t1) and (t1.f in (d, -t1.c,f)) then e when t1.c not in (t1.b,t1.e,b) then t1.e else f end end FROM t1 WHERE t1.d<>coalesce((select max(case when exists(select 1 from t1 where f<=e | b) then (select min(+t1.f) from t1) else 11 end) from t1 where +case when t1.e=c then  -t1.c else t1.a end-t1.a-11-f in (select (case  -min(a) when count(*)*(( -+abs(cast(avg(a) AS integer))*max((17))) | max(19)) then min(11) else min(a) end | count(distinct  -d)) from t1 union select min(t1.e) from t1)),t1.c)}
+} {384}
+do_test randexpr-2.85 {
+  db eval {SELECT (select abs(max((select (case cast(avg(t1.a) AS integer) when +~abs(cast(avg( -17+case when t1.a in (c,(e),t1.f) and f in (c,t1.d,t1.a) then d when d between c and t1.d then f else e end) AS integer))-(abs(~max((b)))-min(t1.f)) then cast(avg(t1.f) AS integer) else count(*) end) from t1)+case when (exists(select 1 from t1 where t1.a in (select  -max(e) from t1 union select  -count(*) from t1)) or e in (t1.b*d,a, - -d)) then 17*t1.c else c end)) from t1) FROM t1 WHERE ~t1.e>case 13 when e then a else coalesce((select ~t1.d from t1 where exists(select 1 from t1 where t1.f between coalesce((select t1.a from t1 where ((select min(d-d- -t1.d+a) from t1)) not between f and t1.c or exists(select 1 from t1 where b<>17)),(a)) and  -d) or not exists(select 1 from t1 where e in (select min(19)*(count(*))*cast(avg(11) AS integer) | min(b) from t1 union select (cast(avg(t1.e) AS integer)) from t1))),c) end-t1.c}
+} {}
+do_test randexpr-2.86 {
+  db eval {SELECT (select abs(max((select (case cast(avg(t1.a) AS integer) when +~abs(cast(avg( -17+case when t1.a in (c,(e),t1.f) and f in (c,t1.d,t1.a) then d when d between c and t1.d then f else e end) AS integer))-(abs(~max((b)))-min(t1.f)) then cast(avg(t1.f) AS integer) else count(*) end) from t1)+case when (exists(select 1 from t1 where t1.a in (select  -max(e) from t1 union select  -count(*) from t1)) or e in (t1.b*d,a, - -d)) then 17*t1.c else c end)) from t1) FROM t1 WHERE NOT (~t1.e>case 13 when e then a else coalesce((select ~t1.d from t1 where exists(select 1 from t1 where t1.f between coalesce((select t1.a from t1 where ((select min(d-d- -t1.d+a) from t1)) not between f and t1.c or exists(select 1 from t1 where b<>17)),(a)) and  -d) or not exists(select 1 from t1 where e in (select min(19)*(count(*))*cast(avg(11) AS integer) | min(b) from t1 union select (cast(avg(t1.e) AS integer)) from t1))),c) end-t1.c)}
+} {301}
+do_test randexpr-2.87 {
+  db eval {SELECT t1.c+(abs(t1.b*t1.b)/abs(++t1.a-t1.e-(abs(t1.b)/abs(d))*11*t1.f)) | 19-b-t1.e | t1.e-+~t1.d*13+a+case case when (d)+17-c=d then a else t1.b end when e then t1.a else 19 end FROM t1 WHERE not coalesce((select (abs(case t1.b when coalesce((select case when exists(select 1 from t1 where f between 17 and f) then 11 else f end from t1 where not exists(select 1 from t1 where c>=t1.d)),17)*t1.a then t1.e else 13 end)/abs(17)) from t1 where ((13 in (select abs(~min(d)*count(distinct  -(f)) | count(*)*cast(avg(11) AS integer)) from t1 union select count(*) from t1) and a<=13) and c<> -(t1.c))), -t1.a)*t1.e*f+d not in (11,d,t1.c)}
+} {}
+do_test randexpr-2.88 {
+  db eval {SELECT t1.c+(abs(t1.b*t1.b)/abs(++t1.a-t1.e-(abs(t1.b)/abs(d))*11*t1.f)) | 19-b-t1.e | t1.e-+~t1.d*13+a+case case when (d)+17-c=d then a else t1.b end when e then t1.a else 19 end FROM t1 WHERE NOT (not coalesce((select (abs(case t1.b when coalesce((select case when exists(select 1 from t1 where f between 17 and f) then 11 else f end from t1 where not exists(select 1 from t1 where c>=t1.d)),17)*t1.a then t1.e else 13 end)/abs(17)) from t1 where ((13 in (select abs(~min(d)*count(distinct  -(f)) | count(*)*cast(avg(11) AS integer)) from t1 union select count(*) from t1) and a<=13) and c<> -(t1.c))), -t1.a)*t1.e*f+d not in (11,d,t1.c))}
+} {-33}
+do_test randexpr-2.89 {
+  db eval {SELECT t1.c+(abs(t1.b*t1.b)/abs(++t1.a-t1.e-(abs(t1.b)/abs(d))*11*t1.f)) & 19-b-t1.e & t1.e-+~t1.d*13+a+case case when (d)+17-c=d then a else t1.b end when e then t1.a else 19 end FROM t1 WHERE NOT (not coalesce((select (abs(case t1.b when coalesce((select case when exists(select 1 from t1 where f between 17 and f) then 11 else f end from t1 where not exists(select 1 from t1 where c>=t1.d)),17)*t1.a then t1.e else 13 end)/abs(17)) from t1 where ((13 in (select abs(~min(d)*count(distinct  -(f)) | count(*)*cast(avg(11) AS integer)) from t1 union select count(*) from t1) and a<=13) and c<> -(t1.c))), -t1.a)*t1.e*f+d not in (11,d,t1.c))}
+} {0}
+do_test randexpr-2.90 {
+  db eval {SELECT case when t1.f>t1.d then (select abs(+count(distinct c)+(abs(min((abs(+11)/abs(b)))* -count(*)))) from t1)-t1.a when d+case when (select cast(avg(t1.f) AS integer)-count(distinct 19) from t1)<>17 then c when t1.e in (select cast(avg(t1.a) AS integer) from t1 union select count(distinct f) from t1) and d>t1.c and t1.f not in (11,19,t1.b) then a else (c) end+(17)=c then t1.d else t1.c end-c FROM t1 WHERE 13 not in (e,t1.b,+coalesce((select max(b) from t1 where 13*b-t1.d-case when 11>=a then t1.a-t1.d else (t1.d)*e+19 end*t1.a+19+(11) | t1.c*t1.a-17<t1.e),b)-a+17*17*c)}
+} {-399}
+do_test randexpr-2.91 {
+  db eval {SELECT case when t1.f>t1.d then (select abs(+count(distinct c)+(abs(min((abs(+11)/abs(b)))* -count(*)))) from t1)-t1.a when d+case when (select cast(avg(t1.f) AS integer)-count(distinct 19) from t1)<>17 then c when t1.e in (select cast(avg(t1.a) AS integer) from t1 union select count(distinct f) from t1) and d>t1.c and t1.f not in (11,19,t1.b) then a else (c) end+(17)=c then t1.d else t1.c end-c FROM t1 WHERE NOT (13 not in (e,t1.b,+coalesce((select max(b) from t1 where 13*b-t1.d-case when 11>=a then t1.a-t1.d else (t1.d)*e+19 end*t1.a+19+(11) | t1.c*t1.a-17<t1.e),b)-a+17*17*c))}
+} {}
+do_test randexpr-2.92 {
+  db eval {SELECT coalesce((select +19 from t1 where 19-c+t1.c-f not in (coalesce((select 19 from t1 where (t1.b between t1.c*t1.a*t1.b | a-e | 13-(abs(19)/abs((select max(t1.d | coalesce((select max( -t1.c) from t1 where b in (select e from t1 union select (f) from t1)),t1.d)+(e)) from t1)+c)) and f)),11),f,17)),f) FROM t1 WHERE (select count(distinct 11)+min((coalesce((select max(case when t1.d<>(abs(t1.a)/abs(e)) then d else ~(t1.e)-e+d+13-t1.b+b*19 end) from t1 where (select max(19)-cast(avg(a) AS integer) from t1)> -t1.e),17)+e+t1.e-t1.c+(c))*17) from t1) between  -17 and t1.c}
+} {}
+do_test randexpr-2.93 {
+  db eval {SELECT coalesce((select +19 from t1 where 19-c+t1.c-f not in (coalesce((select 19 from t1 where (t1.b between t1.c*t1.a*t1.b | a-e | 13-(abs(19)/abs((select max(t1.d | coalesce((select max( -t1.c) from t1 where b in (select e from t1 union select (f) from t1)),t1.d)+(e)) from t1)+c)) and f)),11),f,17)),f) FROM t1 WHERE NOT ((select count(distinct 11)+min((coalesce((select max(case when t1.d<>(abs(t1.a)/abs(e)) then d else ~(t1.e)-e+d+13-t1.b+b*19 end) from t1 where (select max(19)-cast(avg(a) AS integer) from t1)> -t1.e),17)+e+t1.e-t1.c+(c))*17) from t1) between  -17 and t1.c)}
+} {19}
+do_test randexpr-2.94 {
+  db eval {SELECT coalesce((select +19 from t1 where 19-c+t1.c-f not in (coalesce((select 19 from t1 where (t1.b between t1.c*t1.a*t1.b & a-e & 13-(abs(19)/abs((select max(t1.d & coalesce((select max( -t1.c) from t1 where b in (select e from t1 union select (f) from t1)),t1.d)+(e)) from t1)+c)) and f)),11),f,17)),f) FROM t1 WHERE NOT ((select count(distinct 11)+min((coalesce((select max(case when t1.d<>(abs(t1.a)/abs(e)) then d else ~(t1.e)-e+d+13-t1.b+b*19 end) from t1 where (select max(19)-cast(avg(a) AS integer) from t1)> -t1.e),17)+e+t1.e-t1.c+(c))*17) from t1) between  -17 and t1.c)}
+} {19}
+do_test randexpr-2.95 {
+  db eval {SELECT (case t1.a when (select (count(distinct t1.f)) from t1)-e then 11 else t1.c+17-f*~f | f+~e-a*t1.b+13 end | 13) FROM t1 WHERE (coalesce((select max(f) from t1 where (c+t1.f | (select count(distinct t1.d) from t1)>=coalesce((select b+(abs(case when t1.f>=(select case max(f) when max(19) then cast(avg(t1.a) AS integer) else count(distinct 13) end from t1) | t1.b and (a in (select (b) from t1 union select t1.b from t1)) then (a)-b when not exists(select 1 from t1 where c between t1.c and t1.a) then a else t1.a end)/abs(t1.b))- -f from t1 where b not in (t1.b,t1.f,c)),t1.d)-t1.d)), -17) between 13 and t1.f)}
+} {-19491}
+do_test randexpr-2.96 {
+  db eval {SELECT (case t1.a when (select (count(distinct t1.f)) from t1)-e then 11 else t1.c+17-f*~f | f+~e-a*t1.b+13 end | 13) FROM t1 WHERE NOT ((coalesce((select max(f) from t1 where (c+t1.f | (select count(distinct t1.d) from t1)>=coalesce((select b+(abs(case when t1.f>=(select case max(f) when max(19) then cast(avg(t1.a) AS integer) else count(distinct 13) end from t1) | t1.b and (a in (select (b) from t1 union select t1.b from t1)) then (a)-b when not exists(select 1 from t1 where c between t1.c and t1.a) then a else t1.a end)/abs(t1.b))- -f from t1 where b not in (t1.b,t1.f,c)),t1.d)-t1.d)), -17) between 13 and t1.f))}
+} {}
+do_test randexpr-2.97 {
+  db eval {SELECT (case t1.a when (select (count(distinct t1.f)) from t1)-e then 11 else t1.c+17-f*~f & f+~e-a*t1.b+13 end & 13) FROM t1 WHERE (coalesce((select max(f) from t1 where (c+t1.f | (select count(distinct t1.d) from t1)>=coalesce((select b+(abs(case when t1.f>=(select case max(f) when max(19) then cast(avg(t1.a) AS integer) else count(distinct 13) end from t1) | t1.b and (a in (select (b) from t1 union select t1.b from t1)) then (a)-b when not exists(select 1 from t1 where c between t1.c and t1.a) then a else t1.a end)/abs(t1.b))- -f from t1 where b not in (t1.b,t1.f,c)),t1.d)-t1.d)), -17) between 13 and t1.f)}
+} {0}
+do_test randexpr-2.98 {
+  db eval {SELECT case when ((select  -abs(min(coalesce((select max(11 | t1.f) from t1 where coalesce((select f from t1 where e+c in (select 19 from t1 union select f from t1)),b) not in (t1.a,+case when 13>=t1.e then t1.a when 17 not in (t1.d,b,t1.e) then 13 else t1.b end-t1.e,t1.f)),t1.f))*count(*)*min(t1.c)) from t1)<17) and 13* -f+a not between (a) and f then c-11+b else 19 end FROM t1 WHERE e+case case when a<>c then (abs(case when coalesce((select (abs( -19+11)/abs(t1.c)) from t1 where (17) in (a,13,11) and 17 in (select 11 from t1 union select t1.f from t1)),t1.a) between t1.f and c then t1.d when not exists(select 1 from t1 where not exists(select 1 from t1 where 19=f)) then f else (b) end-19)/abs(e)) else 11 end when 17 then a else t1.f end-13 | e between  -t1.e and 13}
+} {}
+do_test randexpr-2.99 {
+  db eval {SELECT case when ((select  -abs(min(coalesce((select max(11 | t1.f) from t1 where coalesce((select f from t1 where e+c in (select 19 from t1 union select f from t1)),b) not in (t1.a,+case when 13>=t1.e then t1.a when 17 not in (t1.d,b,t1.e) then 13 else t1.b end-t1.e,t1.f)),t1.f))*count(*)*min(t1.c)) from t1)<17) and 13* -f+a not between (a) and f then c-11+b else 19 end FROM t1 WHERE NOT (e+case case when a<>c then (abs(case when coalesce((select (abs( -19+11)/abs(t1.c)) from t1 where (17) in (a,13,11) and 17 in (select 11 from t1 union select t1.f from t1)),t1.a) between t1.f and c then t1.d when not exists(select 1 from t1 where not exists(select 1 from t1 where 19=f)) then f else (b) end-19)/abs(e)) else 11 end when 17 then a else t1.f end-13 | e between  -t1.e and 13)}
+} {489}
+do_test randexpr-2.100 {
+  db eval {SELECT case when ((select  -abs(min(coalesce((select max(11 & t1.f) from t1 where coalesce((select f from t1 where e+c in (select 19 from t1 union select f from t1)),b) not in (t1.a,+case when 13>=t1.e then t1.a when 17 not in (t1.d,b,t1.e) then 13 else t1.b end-t1.e,t1.f)),t1.f))*count(*)*min(t1.c)) from t1)<17) and 13* -f+a not between (a) and f then c-11+b else 19 end FROM t1 WHERE NOT (e+case case when a<>c then (abs(case when coalesce((select (abs( -19+11)/abs(t1.c)) from t1 where (17) in (a,13,11) and 17 in (select 11 from t1 union select t1.f from t1)),t1.a) between t1.f and c then t1.d when not exists(select 1 from t1 where not exists(select 1 from t1 where 19=f)) then f else (b) end-19)/abs(e)) else 11 end when 17 then a else t1.f end-13 | e between  -t1.e and 13)}
+} {489}
+do_test randexpr-2.101 {
+  db eval {SELECT case when t1.b-t1.e*c<>c then coalesce((select  -17 from t1 where (t1.f+((select case count(*) when  -cast(avg(19) AS integer)+count(distinct (t1.c)) | (cast(avg(19) AS integer))*max(t1.c)*count(*)-((count(*))) then cast(avg(b) AS integer) else (count(*)) end-min(a) from t1)) | case when t1.b | a in (select t1.a from t1 union select (select count(distinct e) from t1) from t1) then t1.e else b end+t1.a)<e),17) else 19 end FROM t1 WHERE case  -coalesce((select d-+t1.d-13-b from t1 where case when not exists(select 1 from t1 where (t1.a-t1.f in (select t1.e from t1 union select 17 from t1)) or 19<=t1.a) then t1.c-b else b end in (select  -max(13)++abs(max(t1.c))*+max(t1.d) from t1 union select cast(avg(t1.e) AS integer) from t1)),13) | t1.d when (t1.f) then f else a end not between 11 and b}
+} {}
+do_test randexpr-2.102 {
+  db eval {SELECT case when t1.b-t1.e*c<>c then coalesce((select  -17 from t1 where (t1.f+((select case count(*) when  -cast(avg(19) AS integer)+count(distinct (t1.c)) | (cast(avg(19) AS integer))*max(t1.c)*count(*)-((count(*))) then cast(avg(b) AS integer) else (count(*)) end-min(a) from t1)) | case when t1.b | a in (select t1.a from t1 union select (select count(distinct e) from t1) from t1) then t1.e else b end+t1.a)<e),17) else 19 end FROM t1 WHERE NOT (case  -coalesce((select d-+t1.d-13-b from t1 where case when not exists(select 1 from t1 where (t1.a-t1.f in (select t1.e from t1 union select 17 from t1)) or 19<=t1.a) then t1.c-b else b end in (select  -max(13)++abs(max(t1.c))*+max(t1.d) from t1 union select cast(avg(t1.e) AS integer) from t1)),13) | t1.d when (t1.f) then f else a end not between 11 and b)}
+} {17}
+do_test randexpr-2.103 {
+  db eval {SELECT case when t1.b-t1.e*c<>c then coalesce((select  -17 from t1 where (t1.f+((select case count(*) when  -cast(avg(19) AS integer)+count(distinct (t1.c)) & (cast(avg(19) AS integer))*max(t1.c)*count(*)-((count(*))) then cast(avg(b) AS integer) else (count(*)) end-min(a) from t1)) & case when t1.b & a in (select t1.a from t1 union select (select count(distinct e) from t1) from t1) then t1.e else b end+t1.a)<e),17) else 19 end FROM t1 WHERE NOT (case  -coalesce((select d-+t1.d-13-b from t1 where case when not exists(select 1 from t1 where (t1.a-t1.f in (select t1.e from t1 union select 17 from t1)) or 19<=t1.a) then t1.c-b else b end in (select  -max(13)++abs(max(t1.c))*+max(t1.d) from t1 union select cast(avg(t1.e) AS integer) from t1)),13) | t1.d when (t1.f) then f else a end not between 11 and b)}
+} {-17}
+do_test randexpr-2.104 {
+  db eval {SELECT coalesce((select max(case when (select ~cast(avg(a) AS integer) from t1)>~t1.a then f else +~11 end) from t1 where ((select case ~abs(count(distinct t1.e)+(count(*)+count(*)+(abs( -~count(*) | max((t1.b))))))*(cast(avg(t1.a) AS integer)) when (count(*)) then min(19) else  -(min(b)) end from t1))+11<>t1.f), -c-f) FROM t1 WHERE ~e>coalesce((select max(case case case coalesce((select max(coalesce((select c from t1 where t1.a-t1.c>13),13)) from t1 where  -b not in (case d when ~t1.f | t1.c then 13 else 11 end,19,19)),t1.d) when c then t1.a else t1.b end+f-e*b when f then 19 else  -t1.b end when t1.b then 11 else 13 end) from t1 where c in (select 19 from t1 union select e from t1)),t1.d)}
+} {}
+do_test randexpr-2.105 {
+  db eval {SELECT coalesce((select max(case when (select ~cast(avg(a) AS integer) from t1)>~t1.a then f else +~11 end) from t1 where ((select case ~abs(count(distinct t1.e)+(count(*)+count(*)+(abs( -~count(*) | max((t1.b))))))*(cast(avg(t1.a) AS integer)) when (count(*)) then min(19) else  -(min(b)) end from t1))+11<>t1.f), -c-f) FROM t1 WHERE NOT (~e>coalesce((select max(case case case coalesce((select max(coalesce((select c from t1 where t1.a-t1.c>13),13)) from t1 where  -b not in (case d when ~t1.f | t1.c then 13 else 11 end,19,19)),t1.d) when c then t1.a else t1.b end+f-e*b when f then 19 else  -t1.b end when t1.b then 11 else 13 end) from t1 where c in (select 19 from t1 union select e from t1)),t1.d))}
+} {-12}
+do_test randexpr-2.106 {
+  db eval {SELECT coalesce((select max(case when (select ~cast(avg(a) AS integer) from t1)>~t1.a then f else +~11 end) from t1 where ((select case ~abs(count(distinct t1.e)+(count(*)+count(*)+(abs( -~count(*) & max((t1.b))))))*(cast(avg(t1.a) AS integer)) when (count(*)) then min(19) else  -(min(b)) end from t1))+11<>t1.f), -c-f) FROM t1 WHERE NOT (~e>coalesce((select max(case case case coalesce((select max(coalesce((select c from t1 where t1.a-t1.c>13),13)) from t1 where  -b not in (case d when ~t1.f | t1.c then 13 else 11 end,19,19)),t1.d) when c then t1.a else t1.b end+f-e*b when f then 19 else  -t1.b end when t1.b then 11 else 13 end) from t1 where c in (select 19 from t1 union select e from t1)),t1.d))}
+} {-12}
+do_test randexpr-2.107 {
+  db eval {SELECT coalesce((select a from t1 where b>=~11-coalesce((select max((abs(19)/abs(t1.e))+19+t1.d) from t1 where (select abs(count(*) | count(*) | case count(*) when cast(avg(17) AS integer) then  -cast(avg(b) AS integer) else count(*) end*min(b))*(min(t1.e)) from t1) in (11*(select count(*) from t1)*17*t1.e-e*t1.b,t1.e,t1.f)),a)*t1.d),13)-f FROM t1 WHERE ~((case when not 13-+t1.c>=17 then  -~ -b+t1.f+case when t1.c<t1.b then t1.b when e*t1.b in (c,f,19) then (abs(a)/abs(case when 13=e then t1.e when  -a<>t1.d then 11 else t1.e end)) else t1.b end when d>a then (a) else t1.b end))+t1.c in (13,t1.a,13) or t1.e>c}
+} {-500}
+do_test randexpr-2.108 {
+  db eval {SELECT coalesce((select a from t1 where b>=~11-coalesce((select max((abs(19)/abs(t1.e))+19+t1.d) from t1 where (select abs(count(*) | count(*) | case count(*) when cast(avg(17) AS integer) then  -cast(avg(b) AS integer) else count(*) end*min(b))*(min(t1.e)) from t1) in (11*(select count(*) from t1)*17*t1.e-e*t1.b,t1.e,t1.f)),a)*t1.d),13)-f FROM t1 WHERE NOT (~((case when not 13-+t1.c>=17 then  -~ -b+t1.f+case when t1.c<t1.b then t1.b when e*t1.b in (c,f,19) then (abs(a)/abs(case when 13=e then t1.e when  -a<>t1.d then 11 else t1.e end)) else t1.b end when d>a then (a) else t1.b end))+t1.c in (13,t1.a,13) or t1.e>c)}
+} {}
+do_test randexpr-2.109 {
+  db eval {SELECT coalesce((select a from t1 where b>=~11-coalesce((select max((abs(19)/abs(t1.e))+19+t1.d) from t1 where (select abs(count(*) & count(*) & case count(*) when cast(avg(17) AS integer) then  -cast(avg(b) AS integer) else count(*) end*min(b))*(min(t1.e)) from t1) in (11*(select count(*) from t1)*17*t1.e-e*t1.b,t1.e,t1.f)),a)*t1.d),13)-f FROM t1 WHERE ~((case when not 13-+t1.c>=17 then  -~ -b+t1.f+case when t1.c<t1.b then t1.b when e*t1.b in (c,f,19) then (abs(a)/abs(case when 13=e then t1.e when  -a<>t1.d then 11 else t1.e end)) else t1.b end when d>a then (a) else t1.b end))+t1.c in (13,t1.a,13) or t1.e>c}
+} {-500}
+do_test randexpr-2.110 {
+  db eval {SELECT case when 13>=~t1.a or (exists(select 1 from t1 where 11 not in (17,t1.f,17))) then f when not exists(select 1 from t1 where exists(select 1 from t1 where 13 not between e and ~+case b when t1.f then case  -case f when 11 then  -17 else 19 end+17 when b then b else 13 end else 13 end- -t1.a and t1.c not in (t1.f,a,c) or t1.f<11)) then t1.c else 11 end FROM t1 WHERE +t1.e in (select cast(avg(t1.c*t1.a*(abs(13)/abs(t1.e))) AS integer) from t1 union select min(c+13) from t1)}
+} {}
+do_test randexpr-2.111 {
+  db eval {SELECT case when 13>=~t1.a or (exists(select 1 from t1 where 11 not in (17,t1.f,17))) then f when not exists(select 1 from t1 where exists(select 1 from t1 where 13 not between e and ~+case b when t1.f then case  -case f when 11 then  -17 else 19 end+17 when b then b else 13 end else 13 end- -t1.a and t1.c not in (t1.f,a,c) or t1.f<11)) then t1.c else 11 end FROM t1 WHERE NOT (+t1.e in (select cast(avg(t1.c*t1.a*(abs(13)/abs(t1.e))) AS integer) from t1 union select min(c+13) from t1))}
+} {600}
+do_test randexpr-2.112 {
+  db eval {SELECT case when coalesce((select max(13) from t1 where coalesce((select max(c) from t1 where coalesce((select max(17) from t1 where 11 in (select ~d | case when t1.a>+19 then 11 when t1.d not in ( -e,e,c) or 13<t1.c then t1.b else d end-t1.d from t1 union select e from t1)),t1.b) in (select e from t1 union select c from t1)),d)<>d or t1.e<>b),t1.b)*13<=f then  -t1.e when 19 between  -t1.f and t1.a then  -t1.b else t1.f end FROM t1 WHERE exists(select 1 from t1 where t1.f between a and coalesce((select max(t1.f) from t1 where exists(select 1 from t1 where coalesce((select 19 from t1 where t1.c=b),a)= -t1.b and not exists(select 1 from t1 where b between e and b) and a<= -17 or exists(select 1 from t1 where 17<=f)) or t1.a>=t1.c),13)*~13*t1.c*13 or t1.d>13 and 11>=t1.d and 11 not between c and c and t1.f>=17 and (d)=f)}
+} {}
+do_test randexpr-2.113 {
+  db eval {SELECT case when coalesce((select max(13) from t1 where coalesce((select max(c) from t1 where coalesce((select max(17) from t1 where 11 in (select ~d | case when t1.a>+19 then 11 when t1.d not in ( -e,e,c) or 13<t1.c then t1.b else d end-t1.d from t1 union select e from t1)),t1.b) in (select e from t1 union select c from t1)),d)<>d or t1.e<>b),t1.b)*13<=f then  -t1.e when 19 between  -t1.f and t1.a then  -t1.b else t1.f end FROM t1 WHERE NOT (exists(select 1 from t1 where t1.f between a and coalesce((select max(t1.f) from t1 where exists(select 1 from t1 where coalesce((select 19 from t1 where t1.c=b),a)= -t1.b and not exists(select 1 from t1 where b between e and b) and a<= -17 or exists(select 1 from t1 where 17<=f)) or t1.a>=t1.c),13)*~13*t1.c*13 or t1.d>13 and 11>=t1.d and 11 not between c and c and t1.f>=17 and (d)=f))}
+} {-500}
+do_test randexpr-2.114 {
+  db eval {SELECT case when coalesce((select max(13) from t1 where coalesce((select max(c) from t1 where coalesce((select max(17) from t1 where 11 in (select ~d & case when t1.a>+19 then 11 when t1.d not in ( -e,e,c) or 13<t1.c then t1.b else d end-t1.d from t1 union select e from t1)),t1.b) in (select e from t1 union select c from t1)),d)<>d or t1.e<>b),t1.b)*13<=f then  -t1.e when 19 between  -t1.f and t1.a then  -t1.b else t1.f end FROM t1 WHERE NOT (exists(select 1 from t1 where t1.f between a and coalesce((select max(t1.f) from t1 where exists(select 1 from t1 where coalesce((select 19 from t1 where t1.c=b),a)= -t1.b and not exists(select 1 from t1 where b between e and b) and a<= -17 or exists(select 1 from t1 where 17<=f)) or t1.a>=t1.c),13)*~13*t1.c*13 or t1.d>13 and 11>=t1.d and 11 not between c and c and t1.f>=17 and (d)=f))}
+} {-500}
+do_test randexpr-2.115 {
+  db eval {SELECT case when coalesce((select +case when not exists(select 1 from t1 where 19*t1.e< -~11*a or t1.b>=t1.c and t1.a<>e) then coalesce((select max(13) from t1 where 11>11), -(e)) | t1.a when (t1.d) in (select f from t1 union select b from t1) then a else e end from t1 where t1.f<> -t1.d),t1.b) not in (d,t1.d,t1.c) then 19 when (t1.b<>t1.e or  -t1.b>=t1.b) then (f) else d end FROM t1 WHERE t1.e=a and b>=(abs(case when 19 not between ~+17 and +case when ((b+e-f=t1.d or b not in (t1.a,t1.f,t1.b) or t1.a not between 19 and e or b>=(t1.d) or t1.b not in (d,t1.a,t1.b))) then e-f else t1.e*t1.f end | f then d else  -d end)/abs(11))}
+} {}
+do_test randexpr-2.116 {
+  db eval {SELECT case when coalesce((select +case when not exists(select 1 from t1 where 19*t1.e< -~11*a or t1.b>=t1.c and t1.a<>e) then coalesce((select max(13) from t1 where 11>11), -(e)) | t1.a when (t1.d) in (select f from t1 union select b from t1) then a else e end from t1 where t1.f<> -t1.d),t1.b) not in (d,t1.d,t1.c) then 19 when (t1.b<>t1.e or  -t1.b>=t1.b) then (f) else d end FROM t1 WHERE NOT (t1.e=a and b>=(abs(case when 19 not between ~+17 and +case when ((b+e-f=t1.d or b not in (t1.a,t1.f,t1.b) or t1.a not between 19 and e or b>=(t1.d) or t1.b not in (d,t1.a,t1.b))) then e-f else t1.e*t1.f end | f then d else  -d end)/abs(11)))}
+} {19}
+do_test randexpr-2.117 {
+  db eval {SELECT case when coalesce((select +case when not exists(select 1 from t1 where 19*t1.e< -~11*a or t1.b>=t1.c and t1.a<>e) then coalesce((select max(13) from t1 where 11>11), -(e)) & t1.a when (t1.d) in (select f from t1 union select b from t1) then a else e end from t1 where t1.f<> -t1.d),t1.b) not in (d,t1.d,t1.c) then 19 when (t1.b<>t1.e or  -t1.b>=t1.b) then (f) else d end FROM t1 WHERE NOT (t1.e=a and b>=(abs(case when 19 not between ~+17 and +case when ((b+e-f=t1.d or b not in (t1.a,t1.f,t1.b) or t1.a not between 19 and e or b>=(t1.d) or t1.b not in (d,t1.a,t1.b))) then e-f else t1.e*t1.f end | f then d else  -d end)/abs(11)))}
+} {19}
+do_test randexpr-2.118 {
+  db eval {SELECT (select (cast(avg(b) AS integer) | count(distinct case when coalesce((select 13 from t1 where (+(abs(e)/abs(t1.b))) in ( -b, -(a),13)),t1.e)>=b then 11 else  - -19 end-17+19) | abs(~case count(distinct t1.b) when +min(e) then +abs(~ - -count(distinct 11)-count(distinct t1.b))-count(distinct a) else  -min(b) end)*count(distinct 19)-count(distinct t1.b)) from t1) FROM t1 WHERE 11<=t1.a-t1.f-19*t1.b+19+coalesce((select e from t1 where d not between (select count(distinct coalesce((select t1.a from t1 where (select cast(avg(t1.e) AS integer)-+count(distinct c)+max((abs(t1.c)/abs(t1.f))-a)-(count(*)-cast(avg((17)) AS integer)) from t1) in (t1.e, -e | d,b)),c)) from t1) and t1.a),t1.d)-t1.d}
+} {}
+do_test randexpr-2.119 {
+  db eval {SELECT (select (cast(avg(b) AS integer) | count(distinct case when coalesce((select 13 from t1 where (+(abs(e)/abs(t1.b))) in ( -b, -(a),13)),t1.e)>=b then 11 else  - -19 end-17+19) | abs(~case count(distinct t1.b) when +min(e) then +abs(~ - -count(distinct 11)-count(distinct t1.b))-count(distinct a) else  -min(b) end)*count(distinct 19)-count(distinct t1.b)) from t1) FROM t1 WHERE NOT (11<=t1.a-t1.f-19*t1.b+19+coalesce((select e from t1 where d not between (select count(distinct coalesce((select t1.a from t1 where (select cast(avg(t1.e) AS integer)-+count(distinct c)+max((abs(t1.c)/abs(t1.f))-a)-(count(*)-cast(avg((17)) AS integer)) from t1) in (t1.e, -e | d,b)),c)) from t1) and t1.a),t1.d)-t1.d)}
+} {207}
+do_test randexpr-2.120 {
+  db eval {SELECT (select (cast(avg(b) AS integer) & count(distinct case when coalesce((select 13 from t1 where (+(abs(e)/abs(t1.b))) in ( -b, -(a),13)),t1.e)>=b then 11 else  - -19 end-17+19) & abs(~case count(distinct t1.b) when +min(e) then +abs(~ - -count(distinct 11)-count(distinct t1.b))-count(distinct a) else  -min(b) end)*count(distinct 19)-count(distinct t1.b)) from t1) FROM t1 WHERE NOT (11<=t1.a-t1.f-19*t1.b+19+coalesce((select e from t1 where d not between (select count(distinct coalesce((select t1.a from t1 where (select cast(avg(t1.e) AS integer)-+count(distinct c)+max((abs(t1.c)/abs(t1.f))-a)-(count(*)-cast(avg((17)) AS integer)) from t1) in (t1.e, -e | d,b)),c)) from t1) and t1.a),t1.d)-t1.d)}
+} {0}
+do_test randexpr-2.121 {
+  db eval {SELECT 11+a*case t1.a*t1.e when 17 then coalesce((select +t1.b from t1 where t1.c<>t1.c and e between +(abs(case b+f*coalesce((select c from t1 where t1.d>17), -t1.c)+(19) when b then t1.f else t1.d end)/abs(t1.d)) and t1.c and t1.a>b or t1.f<t1.a),t1.c)*17 else  -t1.d end*t1.b FROM t1 WHERE  -19-~t1.b<(select ~count(*) from t1)+(abs(++coalesce((select max(t1.a-c) from t1 where t1.a=11),11))/abs(case when not not exists(select 1 from t1 where exists(select 1 from t1 where t1.a>c or t1.d | 11 in (select t1.e from t1 union select d from t1))) then 17 else (abs(coalesce((select max(f) from t1 where not (c)<t1.a),t1.b))/abs(d))+f end-t1.c))-t1.e-t1.e}
+} {}
+do_test randexpr-2.122 {
+  db eval {SELECT 11+a*case t1.a*t1.e when 17 then coalesce((select +t1.b from t1 where t1.c<>t1.c and e between +(abs(case b+f*coalesce((select c from t1 where t1.d>17), -t1.c)+(19) when b then t1.f else t1.d end)/abs(t1.d)) and t1.c and t1.a>b or t1.f<t1.a),t1.c)*17 else  -t1.d end*t1.b FROM t1 WHERE NOT ( -19-~t1.b<(select ~count(*) from t1)+(abs(++coalesce((select max(t1.a-c) from t1 where t1.a=11),11))/abs(case when not not exists(select 1 from t1 where exists(select 1 from t1 where t1.a>c or t1.d | 11 in (select t1.e from t1 union select d from t1))) then 17 else (abs(coalesce((select max(f) from t1 where not (c)<t1.a),t1.b))/abs(d))+f end-t1.c))-t1.e-t1.e)}
+} {-7999989}
+do_test randexpr-2.123 {
+  db eval {SELECT (e)+case when t1.a>e then t1.f else t1.b+case when b between coalesce((select max(t1.d-~(abs(a)/abs(c))+t1.c) from t1 where f in (select  -min(t1.f)-+cast(avg(e) AS integer) from t1 union select  -(cast(avg(13) AS integer)) from t1) and f<=a and not exists(select 1 from t1 where f not between t1.d and t1.d or (f)<=a) and (t1.f) between 11 and d),t1.a) and t1.f then e when (11<d) then 11 else d end end | t1.e FROM t1 WHERE (abs(13)/abs(a)) in (+coalesce((select 13 from t1 where (t1.e in (select cast(avg(t1.c) AS integer) from t1 union select case +count(distinct t1.c) when +count(*) then ( -min( -b)) else count(*) end*max(e) from t1)) and +case when c in (select (11) from t1 union select  -t1.c from t1) then 17 when 17 in (select 17 from t1 union select d from t1) then c else t1.a end>13),case when c<=11 then t1.e when t1.e<=b then t1.d else t1.e end)-11,11,17)}
+} {}
+do_test randexpr-2.124 {
+  db eval {SELECT (e)+case when t1.a>e then t1.f else t1.b+case when b between coalesce((select max(t1.d-~(abs(a)/abs(c))+t1.c) from t1 where f in (select  -min(t1.f)-+cast(avg(e) AS integer) from t1 union select  -(cast(avg(13) AS integer)) from t1) and f<=a and not exists(select 1 from t1 where f not between t1.d and t1.d or (f)<=a) and (t1.f) between 11 and d),t1.a) and t1.f then e when (11<d) then 11 else d end end | t1.e FROM t1 WHERE NOT ((abs(13)/abs(a)) in (+coalesce((select 13 from t1 where (t1.e in (select cast(avg(t1.c) AS integer) from t1 union select case +count(distinct t1.c) when +count(*) then ( -min( -b)) else count(*) end*max(e) from t1)) and +case when c in (select (11) from t1 union select  -t1.c from t1) then 17 when 17 in (select 17 from t1 union select d from t1) then c else t1.a end>13),case when c<=11 then t1.e when t1.e<=b then t1.d else t1.e end)-11,11,17))}
+} {1524}
+do_test randexpr-2.125 {
+  db eval {SELECT (e)+case when t1.a>e then t1.f else t1.b+case when b between coalesce((select max(t1.d-~(abs(a)/abs(c))+t1.c) from t1 where f in (select  -min(t1.f)-+cast(avg(e) AS integer) from t1 union select  -(cast(avg(13) AS integer)) from t1) and f<=a and not exists(select 1 from t1 where f not between t1.d and t1.d or (f)<=a) and (t1.f) between 11 and d),t1.a) and t1.f then e when (11<d) then 11 else d end end & t1.e FROM t1 WHERE NOT ((abs(13)/abs(a)) in (+coalesce((select 13 from t1 where (t1.e in (select cast(avg(t1.c) AS integer) from t1 union select case +count(distinct t1.c) when +count(*) then ( -min( -b)) else count(*) end*max(e) from t1)) and +case when c in (select (11) from t1 union select  -t1.c from t1) then 17 when 17 in (select 17 from t1 union select d from t1) then c else t1.a end>13),case when c<=11 then t1.e when t1.e<=b then t1.d else t1.e end)-11,11,17))}
+} {176}
+do_test randexpr-2.126 {
+  db eval {SELECT coalesce((select max(~d-t1.f+b-13) from t1 where t1.c not between case when +f=t1.b then 13 when ~f not in (~t1.a,coalesce((select max(t1.b) from t1 where b between c-t1.c+e and (t1.b)),coalesce((select max(t1.d) from t1 where not e in (select 17 from t1 union select t1.c+e | a from t1)),b)),t1.e) then t1.b else a end and c),t1.a) FROM t1 WHERE (select (++ -count(*) | cast(avg(t1.b) AS integer) | ++(max(t1.d))+count(*)+max(t1.b)-count(distinct t1.e)-+abs( -+~max((abs(t1.c)/abs((select min(a) from t1)))))+count(distinct t1.a-t1.b)) from t1) between e and c}
+} {}
+do_test randexpr-2.127 {
+  db eval {SELECT coalesce((select max(~d-t1.f+b-13) from t1 where t1.c not between case when +f=t1.b then 13 when ~f not in (~t1.a,coalesce((select max(t1.b) from t1 where b between c-t1.c+e and (t1.b)),coalesce((select max(t1.d) from t1 where not e in (select 17 from t1 union select t1.c+e | a from t1)),b)),t1.e) then t1.b else a end and c),t1.a) FROM t1 WHERE NOT ((select (++ -count(*) | cast(avg(t1.b) AS integer) | ++(max(t1.d))+count(*)+max(t1.b)-count(distinct t1.e)-+abs( -+~max((abs(t1.c)/abs((select min(a) from t1)))))+count(distinct t1.a-t1.b)) from t1) between e and c)}
+} {100}
+do_test randexpr-2.128 {
+  db eval {SELECT coalesce((select max(~d-t1.f+b-13) from t1 where t1.c not between case when +f=t1.b then 13 when ~f not in (~t1.a,coalesce((select max(t1.b) from t1 where b between c-t1.c+e and (t1.b)),coalesce((select max(t1.d) from t1 where not e in (select 17 from t1 union select t1.c+e & a from t1)),b)),t1.e) then t1.b else a end and c),t1.a) FROM t1 WHERE NOT ((select (++ -count(*) | cast(avg(t1.b) AS integer) | ++(max(t1.d))+count(*)+max(t1.b)-count(distinct t1.e)-+abs( -+~max((abs(t1.c)/abs((select min(a) from t1)))))+count(distinct t1.a-t1.b)) from t1) between e and c)}
+} {100}
+do_test randexpr-2.129 {
+  db eval {SELECT a+case when exists(select 1 from t1 where 19>=e) then b*b+coalesce((select max( -coalesce((select max(19 | t1.e) from t1 where exists(select 1 from t1 where exists(select 1 from t1 where +case t1.a when a then a else (17) end*19 in (select max(d) from t1 union select max(t1.a) from t1) and not exists(select 1 from t1 where t1.a<=11)) or 11>(19))),11* -a)) from t1 where t1.e<>17),f) else t1.e end-11 FROM t1 WHERE (t1.a>=(abs(coalesce((select +13*t1.a | c from t1 where 11+case when exists(select 1 from t1 where case when +t1.d in (select case +count(*) when count(distinct 11) then count(*) else (min(11)) end from t1 union select max( -11) from t1) or 11<> -t1.f then t1.d when t1.b in (13,a,d) then c else c end+t1.b=b) then e-c else (t1.d) end>t1.d),d))/abs(t1.f)) and 11 in (select  -t1.a from t1 union select 13 from t1))}
+} {}
+do_test randexpr-2.130 {
+  db eval {SELECT a+case when exists(select 1 from t1 where 19>=e) then b*b+coalesce((select max( -coalesce((select max(19 | t1.e) from t1 where exists(select 1 from t1 where exists(select 1 from t1 where +case t1.a when a then a else (17) end*19 in (select max(d) from t1 union select max(t1.a) from t1) and not exists(select 1 from t1 where t1.a<=11)) or 11>(19))),11* -a)) from t1 where t1.e<>17),f) else t1.e end-11 FROM t1 WHERE NOT ((t1.a>=(abs(coalesce((select +13*t1.a | c from t1 where 11+case when exists(select 1 from t1 where case when +t1.d in (select case +count(*) when count(distinct 11) then count(*) else (min(11)) end from t1 union select max( -11) from t1) or 11<> -t1.f then t1.d when t1.b in (13,a,d) then c else c end+t1.b=b) then e-c else (t1.d) end>t1.d),d))/abs(t1.f)) and 11 in (select  -t1.a from t1 union select 13 from t1)))}
+} {589}
+do_test randexpr-2.131 {
+  db eval {SELECT a+case when exists(select 1 from t1 where 19>=e) then b*b+coalesce((select max( -coalesce((select max(19 & t1.e) from t1 where exists(select 1 from t1 where exists(select 1 from t1 where +case t1.a when a then a else (17) end*19 in (select max(d) from t1 union select max(t1.a) from t1) and not exists(select 1 from t1 where t1.a<=11)) or 11>(19))),11* -a)) from t1 where t1.e<>17),f) else t1.e end-11 FROM t1 WHERE NOT ((t1.a>=(abs(coalesce((select +13*t1.a | c from t1 where 11+case when exists(select 1 from t1 where case when +t1.d in (select case +count(*) when count(distinct 11) then count(*) else (min(11)) end from t1 union select max( -11) from t1) or 11<> -t1.f then t1.d when t1.b in (13,a,d) then c else c end+t1.b=b) then e-c else (t1.d) end>t1.d),d))/abs(t1.f)) and 11 in (select  -t1.a from t1 union select 13 from t1)))}
+} {589}
+do_test randexpr-2.132 {
+  db eval {SELECT case ~13 when t1.e then e else (select case case (abs(count(*))-~count(*)+count(*) | count(*)-count(*)+max(t1.b)* -(cast(avg(13) AS integer)) |  -(count(distinct t1.c))) when min(e) then (min(13)) else count(*) end*count(*) when max(e) then count(distinct  -d) else count(*) end from t1) end-t1.d*case (abs(e | t1.b)/abs((select cast(avg(t1.c) AS integer) from t1))) when (select cast(avg(a) AS integer) from t1) then t1.c else f+13 end FROM t1 WHERE not exists(select 1 from t1 where coalesce((select case when t1.a>t1.f-~case when ~t1.d+c+t1.f>11 then t1.a when (f between t1.f and t1.c) then t1.f else 13 end*t1.a then t1.d when c<t1.e or e>19 then c else t1.e end from t1 where e<>a and 19<>t1.f),t1.b)+t1.f-t1.e<d)}
+} {-245199}
+do_test randexpr-2.133 {
+  db eval {SELECT case ~13 when t1.e then e else (select case case (abs(count(*))-~count(*)+count(*) | count(*)-count(*)+max(t1.b)* -(cast(avg(13) AS integer)) |  -(count(distinct t1.c))) when min(e) then (min(13)) else count(*) end*count(*) when max(e) then count(distinct  -d) else count(*) end from t1) end-t1.d*case (abs(e | t1.b)/abs((select cast(avg(t1.c) AS integer) from t1))) when (select cast(avg(a) AS integer) from t1) then t1.c else f+13 end FROM t1 WHERE NOT (not exists(select 1 from t1 where coalesce((select case when t1.a>t1.f-~case when ~t1.d+c+t1.f>11 then t1.a when (f between t1.f and t1.c) then t1.f else 13 end*t1.a then t1.d when c<t1.e or e>19 then c else t1.e end from t1 where e<>a and 19<>t1.f),t1.b)+t1.f-t1.e<d))}
+} {}
+do_test randexpr-2.134 {
+  db eval {SELECT case ~13 when t1.e then e else (select case case (abs(count(*))-~count(*)+count(*) & count(*)-count(*)+max(t1.b)* -(cast(avg(13) AS integer)) &  -(count(distinct t1.c))) when min(e) then (min(13)) else count(*) end*count(*) when max(e) then count(distinct  -d) else count(*) end from t1) end-t1.d*case (abs(e & t1.b)/abs((select cast(avg(t1.c) AS integer) from t1))) when (select cast(avg(a) AS integer) from t1) then t1.c else f+13 end FROM t1 WHERE not exists(select 1 from t1 where coalesce((select case when t1.a>t1.f-~case when ~t1.d+c+t1.f>11 then t1.a when (f between t1.f and t1.c) then t1.f else 13 end*t1.a then t1.d when c<t1.e or e>19 then c else t1.e end from t1 where e<>a and 19<>t1.f),t1.b)+t1.f-t1.e<d)}
+} {-245199}
+do_test randexpr-2.135 {
+  db eval {SELECT 11-case when 17<=c and (select ( -abs(case count(*)+~case  -min(e) when count(distinct t1.a) then  -count(*) else min(a) end+max(t1.c) when count(*) then max(b) else  -count(distinct 19) end)*cast(avg(17) AS integer)) from t1) not in (case f when e then 19 | 11 else (t1.d) end,d, -t1.b) then +t1.c when t1.d not in (11,c,t1.a) then 13 else a end-t1.d*t1.d FROM t1 WHERE ((abs((abs(coalesce((select a from t1 where (select max(case when t1.f=b then e when 11>t1.c and 11<>e then 13 else a end-(a))-max(t1.e)*count(distinct t1.f) | case max((f)) when (count(distinct f)) then count(*) else min(t1.c) end+min(19) from t1) not in (11,19,t1.e)),t1.f*17))/abs(a)))/abs(c)) in (select t1.c from t1 union select t1.a from t1)) or ( -t1.f=e)}
+} {}
+do_test randexpr-2.136 {
+  db eval {SELECT 11-case when 17<=c and (select ( -abs(case count(*)+~case  -min(e) when count(distinct t1.a) then  -count(*) else min(a) end+max(t1.c) when count(*) then max(b) else  -count(distinct 19) end)*cast(avg(17) AS integer)) from t1) not in (case f when e then 19 | 11 else (t1.d) end,d, -t1.b) then +t1.c when t1.d not in (11,c,t1.a) then 13 else a end-t1.d*t1.d FROM t1 WHERE NOT (((abs((abs(coalesce((select a from t1 where (select max(case when t1.f=b then e when 11>t1.c and 11<>e then 13 else a end-(a))-max(t1.e)*count(distinct t1.f) | case max((f)) when (count(distinct f)) then count(*) else min(t1.c) end+min(19) from t1) not in (11,19,t1.e)),t1.f*17))/abs(a)))/abs(c)) in (select t1.c from t1 union select t1.a from t1)) or ( -t1.f=e))}
+} {-160289}
+do_test randexpr-2.137 {
+  db eval {SELECT 11-case when 17<=c and (select ( -abs(case count(*)+~case  -min(e) when count(distinct t1.a) then  -count(*) else min(a) end+max(t1.c) when count(*) then max(b) else  -count(distinct 19) end)*cast(avg(17) AS integer)) from t1) not in (case f when e then 19 & 11 else (t1.d) end,d, -t1.b) then +t1.c when t1.d not in (11,c,t1.a) then 13 else a end-t1.d*t1.d FROM t1 WHERE NOT (((abs((abs(coalesce((select a from t1 where (select max(case when t1.f=b then e when 11>t1.c and 11<>e then 13 else a end-(a))-max(t1.e)*count(distinct t1.f) | case max((f)) when (count(distinct f)) then count(*) else min(t1.c) end+min(19) from t1) not in (11,19,t1.e)),t1.f*17))/abs(a)))/abs(c)) in (select t1.c from t1 union select t1.a from t1)) or ( -t1.f=e))}
+} {-160289}
+do_test randexpr-2.138 {
+  db eval {SELECT (f+case +t1.e when t1.d then 17 else f*19 end |  -(abs( -coalesce((select 17* -c+19 from t1 where (abs(case 19*e*d when (select +(cast(avg( -11) AS integer)) |  -count(*)*max( -13) from t1) then 11 | case t1.b when a then a else t1.f end else t1.a end)/abs(a)) in (select t1.b from t1 union select (a) from t1)),t1.b))/abs( -13))) FROM t1 WHERE +b in (select case case case when not ((~coalesce((select t1.e+d from t1 where (19 between f and t1.b)),(select cast(avg(c+t1.b) AS integer)++cast(avg(b) AS integer) from t1))) not in (t1.c+c,b,e)) or (13 not between d and t1.d) then 13 else b end when  -11 then 13 else 19 end*t1.e when (f) then 19 else 19 end from t1 union select f from t1)}
+} {}
+do_test randexpr-2.139 {
+  db eval {SELECT (f+case +t1.e when t1.d then 17 else f*19 end |  -(abs( -coalesce((select 17* -c+19 from t1 where (abs(case 19*e*d when (select +(cast(avg( -11) AS integer)) |  -count(*)*max( -13) from t1) then 11 | case t1.b when a then a else t1.f end else t1.a end)/abs(a)) in (select t1.b from t1 union select (a) from t1)),t1.b))/abs( -13))) FROM t1 WHERE NOT (+b in (select case case case when not ((~coalesce((select t1.e+d from t1 where (19 between f and t1.b)),(select cast(avg(c+t1.b) AS integer)++cast(avg(b) AS integer) from t1))) not in (t1.c+c,b,e)) or (13 not between d and t1.d) then 13 else b end when  -11 then 13 else 19 end*t1.e when (f) then 19 else 19 end from t1 union select f from t1))}
+} {-15}
+do_test randexpr-2.140 {
+  db eval {SELECT (f+case +t1.e when t1.d then 17 else f*19 end &  -(abs( -coalesce((select 17* -c+19 from t1 where (abs(case 19*e*d when (select +(cast(avg( -11) AS integer)) &  -count(*)*max( -13) from t1) then 11 & case t1.b when a then a else t1.f end else t1.a end)/abs(a)) in (select t1.b from t1 union select (a) from t1)),t1.b))/abs( -13))) FROM t1 WHERE NOT (+b in (select case case case when not ((~coalesce((select t1.e+d from t1 where (19 between f and t1.b)),(select cast(avg(c+t1.b) AS integer)++cast(avg(b) AS integer) from t1))) not in (t1.c+c,b,e)) or (13 not between d and t1.d) then 13 else b end when  -11 then 13 else 19 end*t1.e when (f) then 19 else 19 end from t1 union select f from t1))}
+} {12000}
+do_test randexpr-2.141 {
+  db eval {SELECT 11*coalesce((select max(t1.f) from t1 where a-case t1.c when +coalesce((select t1.a-t1.b from t1 where (abs(19)/abs(b)) in (17-case when a<t1.b then t1.a when c not between 19 and t1.d then e else (t1.b) end, -t1.b,f) or 19 in (select t1.b from t1 union select t1.a from t1)),e)+t1.f*t1.b then t1.c else 13 end in (select t1.b from t1 union select f from t1) or e<>17),d)*(t1.e) FROM t1 WHERE (coalesce((select max(~t1.b) from t1 where t1.c in (select ~+case count(distinct a) when (max(t1.a)) then (count(*)) else ~+abs(cast(avg(d | t1.a) AS integer)+case (cast(avg(13) AS integer)) when cast(avg(b) AS integer) then cast(avg(t1.f) AS integer) else min(t1.a) end) | count(distinct c)*( -( -max(t1.f)))*count(*) end from t1 union select count(distinct  -e) from t1)),~a-11)<19 or t1.a*13<>t1.d and not exists(select 1 from t1 where t1.e=e))}
+} {3300000}
+do_test randexpr-2.142 {
+  db eval {SELECT 11*coalesce((select max(t1.f) from t1 where a-case t1.c when +coalesce((select t1.a-t1.b from t1 where (abs(19)/abs(b)) in (17-case when a<t1.b then t1.a when c not between 19 and t1.d then e else (t1.b) end, -t1.b,f) or 19 in (select t1.b from t1 union select t1.a from t1)),e)+t1.f*t1.b then t1.c else 13 end in (select t1.b from t1 union select f from t1) or e<>17),d)*(t1.e) FROM t1 WHERE NOT ((coalesce((select max(~t1.b) from t1 where t1.c in (select ~+case count(distinct a) when (max(t1.a)) then (count(*)) else ~+abs(cast(avg(d | t1.a) AS integer)+case (cast(avg(13) AS integer)) when cast(avg(b) AS integer) then cast(avg(t1.f) AS integer) else min(t1.a) end) | count(distinct c)*( -( -max(t1.f)))*count(*) end from t1 union select count(distinct  -e) from t1)),~a-11)<19 or t1.a*13<>t1.d and not exists(select 1 from t1 where t1.e=e)))}
+} {}
+do_test randexpr-2.143 {
+  db eval {SELECT 11+t1.b+17+case when 13 not between t1.d*(17)+d-t1.f and 13 then t1.d when case when case when t1.f not in (t1.b,c,t1.f) and  -d between d and 11 then d else 19 end not between a and e then t1.b when t1.d in (17,13,11) then 19 else t1.e end*a>e then t1.a else t1.d end*f*e FROM t1 WHERE not exists(select 1 from t1 where (t1.f) in (b-b,(select +(max( -13*t1.c*c+t1.e+case t1.a when +t1.d-(c) then  -t1.a else t1.c end | 19* -17)*count(distinct a) | (count(distinct t1.f)))++cast(avg(f) AS integer)-max(13) | cast(avg(b) AS integer) from t1),t1.f))}
+} {}
+do_test randexpr-2.144 {
+  db eval {SELECT 11+t1.b+17+case when 13 not between t1.d*(17)+d-t1.f and 13 then t1.d when case when case when t1.f not in (t1.b,c,t1.f) and  -d between d and 11 then d else 19 end not between a and e then t1.b when t1.d in (17,13,11) then 19 else t1.e end*a>e then t1.a else t1.d end*f*e FROM t1 WHERE NOT (not exists(select 1 from t1 where (t1.f) in (b-b,(select +(max( -13*t1.c*c+t1.e+case t1.a when +t1.d-(c) then  -t1.a else t1.c end | 19* -17)*count(distinct a) | (count(distinct t1.f)))++cast(avg(f) AS integer)-max(13) | cast(avg(b) AS integer) from t1),t1.f)))}
+} {120000228}
+do_test randexpr-2.145 {
+  db eval {SELECT ((abs(+((select count(*)*abs(min((abs(case (abs(c)/abs(f)) | e when case when 19>=d then 13 when a=f then 13 else f end then b else a end+t1.a)/abs(11))*t1.c*17))-cast(avg(e) AS integer)*count(*) from t1)))/abs(coalesce((select max(case when t1.a in (select t1.c from t1 union select 19 from t1) then e else t1.e end) from t1 where (t1.a<= -t1.e)),17)+c*13))) FROM t1 WHERE exists(select 1 from t1 where ~coalesce((select max(c) from t1 where exists(select 1 from t1 where case when not case coalesce((select max(coalesce((select d from t1 where exists(select 1 from t1 where a<(t1.c))),19)) from t1 where e=t1.e),13) when t1.e then t1.b else f end in (select abs((min(e))*(max(t1.d))+min(t1.e)*(( -((max(t1.a)))))) from t1 union select count(distinct t1.a) from t1) then coalesce((select t1.c from t1 where t1.a< -t1.c and a in (t1.b,t1.f,t1.c)),17) else 17 end>=t1.f)),t1.f)+t1.a*b in (select c from t1 union select 19 from t1)) or exists(select 1 from t1 where not t1.f not in (t1.f,11,t1.d) and 19<=19)}
+} {23}
+do_test randexpr-2.146 {
+  db eval {SELECT ((abs(+((select count(*)*abs(min((abs(case (abs(c)/abs(f)) | e when case when 19>=d then 13 when a=f then 13 else f end then b else a end+t1.a)/abs(11))*t1.c*17))-cast(avg(e) AS integer)*count(*) from t1)))/abs(coalesce((select max(case when t1.a in (select t1.c from t1 union select 19 from t1) then e else t1.e end) from t1 where (t1.a<= -t1.e)),17)+c*13))) FROM t1 WHERE NOT (exists(select 1 from t1 where ~coalesce((select max(c) from t1 where exists(select 1 from t1 where case when not case coalesce((select max(coalesce((select d from t1 where exists(select 1 from t1 where a<(t1.c))),19)) from t1 where e=t1.e),13) when t1.e then t1.b else f end in (select abs((min(e))*(max(t1.d))+min(t1.e)*(( -((max(t1.a)))))) from t1 union select count(distinct t1.a) from t1) then coalesce((select t1.c from t1 where t1.a< -t1.c and a in (t1.b,t1.f,t1.c)),17) else 17 end>=t1.f)),t1.f)+t1.a*b in (select c from t1 union select 19 from t1)) or exists(select 1 from t1 where not t1.f not in (t1.f,11,t1.d) and 19<=19))}
+} {}
+do_test randexpr-2.147 {
+  db eval {SELECT ((abs(+((select count(*)*abs(min((abs(case (abs(c)/abs(f)) & e when case when 19>=d then 13 when a=f then 13 else f end then b else a end+t1.a)/abs(11))*t1.c*17))-cast(avg(e) AS integer)*count(*) from t1)))/abs(coalesce((select max(case when t1.a in (select t1.c from t1 union select 19 from t1) then e else t1.e end) from t1 where (t1.a<= -t1.e)),17)+c*13))) FROM t1 WHERE exists(select 1 from t1 where ~coalesce((select max(c) from t1 where exists(select 1 from t1 where case when not case coalesce((select max(coalesce((select d from t1 where exists(select 1 from t1 where a<(t1.c))),19)) from t1 where e=t1.e),13) when t1.e then t1.b else f end in (select abs((min(e))*(max(t1.d))+min(t1.e)*(( -((max(t1.a)))))) from t1 union select count(distinct t1.a) from t1) then coalesce((select t1.c from t1 where t1.a< -t1.c and a in (t1.b,t1.f,t1.c)),17) else 17 end>=t1.f)),t1.f)+t1.a*b in (select c from t1 union select 19 from t1)) or exists(select 1 from t1 where not t1.f not in (t1.f,11,t1.d) and 19<=19)}
+} {23}
+do_test randexpr-2.148 {
+  db eval {SELECT coalesce((select max(case when t1.f between 17 and 11+case when not coalesce((select max(11) from t1 where t1.f in (select max(t1.d) from t1 union select  -count(*) from t1) or 17=(13) or f in (( -t1.b),13,a)),case when d>13 then 13 else 11 end) between 19 and 19 then 19 when t1.c=d then e else 17 end then t1.e else t1.d end) from t1 where e in (select  -(+max(11)-max((t1.a))+ -count(distinct d) | cast(avg(t1.a) AS integer)*count(distinct b))-count(*)* -count(distinct t1.e) from t1 union select cast(avg(d) AS integer) from t1)),d)+b FROM t1 WHERE (select +~abs( -min(t1.a)-abs(count(*)))+ -abs(+ -+case (cast(avg(a) AS integer)) when min(e+t1.d) then +case cast(avg(coalesce((select max(t1.f+ -t1.e) from t1 where t1.c between 13 and t1.b),19)) AS integer) when ~~min(t1.f) then count(distinct 13) else cast(avg(t1.b) AS integer) end+count(distinct t1.e) else  -count(*) end | max(a)+max(t1.e)) from t1)+e<a}
+} {600}
+do_test randexpr-2.149 {
+  db eval {SELECT coalesce((select max(case when t1.f between 17 and 11+case when not coalesce((select max(11) from t1 where t1.f in (select max(t1.d) from t1 union select  -count(*) from t1) or 17=(13) or f in (( -t1.b),13,a)),case when d>13 then 13 else 11 end) between 19 and 19 then 19 when t1.c=d then e else 17 end then t1.e else t1.d end) from t1 where e in (select  -(+max(11)-max((t1.a))+ -count(distinct d) | cast(avg(t1.a) AS integer)*count(distinct b))-count(*)* -count(distinct t1.e) from t1 union select cast(avg(d) AS integer) from t1)),d)+b FROM t1 WHERE NOT ((select +~abs( -min(t1.a)-abs(count(*)))+ -abs(+ -+case (cast(avg(a) AS integer)) when min(e+t1.d) then +case cast(avg(coalesce((select max(t1.f+ -t1.e) from t1 where t1.c between 13 and t1.b),19)) AS integer) when ~~min(t1.f) then count(distinct 13) else cast(avg(t1.b) AS integer) end+count(distinct t1.e) else  -count(*) end | max(a)+max(t1.e)) from t1)+e<a)}
+} {}
+do_test randexpr-2.150 {
+  db eval {SELECT coalesce((select max(case when t1.f between 17 and 11+case when not coalesce((select max(11) from t1 where t1.f in (select max(t1.d) from t1 union select  -count(*) from t1) or 17=(13) or f in (( -t1.b),13,a)),case when d>13 then 13 else 11 end) between 19 and 19 then 19 when t1.c=d then e else 17 end then t1.e else t1.d end) from t1 where e in (select  -(+max(11)-max((t1.a))+ -count(distinct d) & cast(avg(t1.a) AS integer)*count(distinct b))-count(*)* -count(distinct t1.e) from t1 union select cast(avg(d) AS integer) from t1)),d)+b FROM t1 WHERE (select +~abs( -min(t1.a)-abs(count(*)))+ -abs(+ -+case (cast(avg(a) AS integer)) when min(e+t1.d) then +case cast(avg(coalesce((select max(t1.f+ -t1.e) from t1 where t1.c between 13 and t1.b),19)) AS integer) when ~~min(t1.f) then count(distinct 13) else cast(avg(t1.b) AS integer) end+count(distinct t1.e) else  -count(*) end | max(a)+max(t1.e)) from t1)+e<a}
+} {600}
+do_test randexpr-2.151 {
+  db eval {SELECT case when ((+b in (select min(coalesce((select c from t1 where t1.b-t1.c+coalesce((select max(case when 13 in (select  -count(distinct b)*max(c) from t1 union select (( - -cast(avg(d) AS integer))) from t1) then b else t1.f end) from t1 where t1.f<t1.e),13) between (b) and  -t1.b), -e)) from t1 union select +( -case  -abs(( -count(*))) | count(distinct d) when max(17) then max(13) else  -(min(13)) end) | (count(distinct t1.a)) from t1))) then t1.f else case c when t1.d then e else 11 end end FROM t1 WHERE t1.a+case t1.c when case c when 13 then t1.f*(select count(*) | cast(avg(a) AS integer) from t1)+13*t1.a else (select abs( -count(*)) from t1) end then b else t1.c end in (t1.a,d,17) or  -(select ~ -max(c) from t1)+17<>d or t1.a not between b and 13 or f<> -19 and t1.b>a}
+} {11}
+do_test randexpr-2.152 {
+  db eval {SELECT case when ((+b in (select min(coalesce((select c from t1 where t1.b-t1.c+coalesce((select max(case when 13 in (select  -count(distinct b)*max(c) from t1 union select (( - -cast(avg(d) AS integer))) from t1) then b else t1.f end) from t1 where t1.f<t1.e),13) between (b) and  -t1.b), -e)) from t1 union select +( -case  -abs(( -count(*))) | count(distinct d) when max(17) then max(13) else  -(min(13)) end) | (count(distinct t1.a)) from t1))) then t1.f else case c when t1.d then e else 11 end end FROM t1 WHERE NOT (t1.a+case t1.c when case c when 13 then t1.f*(select count(*) | cast(avg(a) AS integer) from t1)+13*t1.a else (select abs( -count(*)) from t1) end then b else t1.c end in (t1.a,d,17) or  -(select ~ -max(c) from t1)+17<>d or t1.a not between b and 13 or f<> -19 and t1.b>a)}
+} {}
+do_test randexpr-2.153 {
+  db eval {SELECT case when ((+b in (select min(coalesce((select c from t1 where t1.b-t1.c+coalesce((select max(case when 13 in (select  -count(distinct b)*max(c) from t1 union select (( - -cast(avg(d) AS integer))) from t1) then b else t1.f end) from t1 where t1.f<t1.e),13) between (b) and  -t1.b), -e)) from t1 union select +( -case  -abs(( -count(*))) & count(distinct d) when max(17) then max(13) else  -(min(13)) end) & (count(distinct t1.a)) from t1))) then t1.f else case c when t1.d then e else 11 end end FROM t1 WHERE t1.a+case t1.c when case c when 13 then t1.f*(select count(*) | cast(avg(a) AS integer) from t1)+13*t1.a else (select abs( -count(*)) from t1) end then b else t1.c end in (t1.a,d,17) or  -(select ~ -max(c) from t1)+17<>d or t1.a not between b and 13 or f<> -19 and t1.b>a}
+} {11}
+do_test randexpr-2.154 {
+  db eval {SELECT case when t1.a | (abs(case when  -t1.e in (17,11,(abs(t1.b)/abs(b+case when (17 in (select f-c from t1 union select  -a from t1)) or t1.b<=a then d when t1.e in (select  -(count(*)) from t1 union select max(t1.b) from t1) then c else c end*a-t1.f))) then t1.b else t1.e end)/abs(t1.f))>=11 and not exists(select 1 from t1 where exists(select 1 from t1 where t1.d in (select t1.d from t1 union select 17 from t1))) then c else t1.c end FROM t1 WHERE (coalesce((select f from t1 where case a-e+a when (abs(t1.d)/abs((coalesce((select ~t1.e*+t1.a+b*a*(abs(19)/abs(a))*a+e from t1 where 13<t1.e),a))))+11 then 11 else d end>=13 or t1.b<= -19),t1.f)+17* -t1.c<t1.c)}
+} {300}
+do_test randexpr-2.155 {
+  db eval {SELECT case when t1.a | (abs(case when  -t1.e in (17,11,(abs(t1.b)/abs(b+case when (17 in (select f-c from t1 union select  -a from t1)) or t1.b<=a then d when t1.e in (select  -(count(*)) from t1 union select max(t1.b) from t1) then c else c end*a-t1.f))) then t1.b else t1.e end)/abs(t1.f))>=11 and not exists(select 1 from t1 where exists(select 1 from t1 where t1.d in (select t1.d from t1 union select 17 from t1))) then c else t1.c end FROM t1 WHERE NOT ((coalesce((select f from t1 where case a-e+a when (abs(t1.d)/abs((coalesce((select ~t1.e*+t1.a+b*a*(abs(19)/abs(a))*a+e from t1 where 13<t1.e),a))))+11 then 11 else d end>=13 or t1.b<= -19),t1.f)+17* -t1.c<t1.c))}
+} {}
+do_test randexpr-2.156 {
+  db eval {SELECT case when t1.a & (abs(case when  -t1.e in (17,11,(abs(t1.b)/abs(b+case when (17 in (select f-c from t1 union select  -a from t1)) or t1.b<=a then d when t1.e in (select  -(count(*)) from t1 union select max(t1.b) from t1) then c else c end*a-t1.f))) then t1.b else t1.e end)/abs(t1.f))>=11 and not exists(select 1 from t1 where exists(select 1 from t1 where t1.d in (select t1.d from t1 union select 17 from t1))) then c else t1.c end FROM t1 WHERE (coalesce((select f from t1 where case a-e+a when (abs(t1.d)/abs((coalesce((select ~t1.e*+t1.a+b*a*(abs(19)/abs(a))*a+e from t1 where 13<t1.e),a))))+11 then 11 else d end>=13 or t1.b<= -19),t1.f)+17* -t1.c<t1.c)}
+} {300}
+do_test randexpr-2.157 {
+  db eval {SELECT coalesce((select max(~t1.b) from t1 where b in (select count(distinct b) from t1 union select max(case coalesce((select max(b) from t1 where d in (select t1.f from t1 union select d from t1) and t1.a=d),t1.a) when  -t1.a then d*t1.e+t1.c-11+b | e-t1.a+e+t1.f else c end) from t1)),t1.a) FROM t1 WHERE (e<t1.f*case 17 when t1.a then t1.d else +coalesce((select max(17) from t1 where not 13<>~a-11),t1.f) end)}
+} {100}
+do_test randexpr-2.158 {
+  db eval {SELECT coalesce((select max(~t1.b) from t1 where b in (select count(distinct b) from t1 union select max(case coalesce((select max(b) from t1 where d in (select t1.f from t1 union select d from t1) and t1.a=d),t1.a) when  -t1.a then d*t1.e+t1.c-11+b | e-t1.a+e+t1.f else c end) from t1)),t1.a) FROM t1 WHERE NOT ((e<t1.f*case 17 when t1.a then t1.d else +coalesce((select max(17) from t1 where not 13<>~a-11),t1.f) end))}
+} {}
+do_test randexpr-2.159 {
+  db eval {SELECT coalesce((select max(~t1.b) from t1 where b in (select count(distinct b) from t1 union select max(case coalesce((select max(b) from t1 where d in (select t1.f from t1 union select d from t1) and t1.a=d),t1.a) when  -t1.a then d*t1.e+t1.c-11+b & e-t1.a+e+t1.f else c end) from t1)),t1.a) FROM t1 WHERE (e<t1.f*case 17 when t1.a then t1.d else +coalesce((select max(17) from t1 where not 13<>~a-11),t1.f) end)}
+} {100}
+do_test randexpr-2.160 {
+  db eval {SELECT case when not t1.c not in (13,d,~case when coalesce((select max((abs(t1.c)/abs(t1.e))) from t1 where b-t1.d+b+t1.f>a),t1.a) in (select 19 from t1 union select t1.a from t1) then  -b else a end*b | d) and  -(t1.b)>=e and 11<d or ((19))<> -t1.c then t1.f else t1.f end+(t1.b)+a FROM t1 WHERE e>e}
+} {}
+do_test randexpr-2.161 {
+  db eval {SELECT case when not t1.c not in (13,d,~case when coalesce((select max((abs(t1.c)/abs(t1.e))) from t1 where b-t1.d+b+t1.f>a),t1.a) in (select 19 from t1 union select t1.a from t1) then  -b else a end*b | d) and  -(t1.b)>=e and 11<d or ((19))<> -t1.c then t1.f else t1.f end+(t1.b)+a FROM t1 WHERE NOT (e>e)}
+} {900}
+do_test randexpr-2.162 {
+  db eval {SELECT case when not t1.c not in (13,d,~case when coalesce((select max((abs(t1.c)/abs(t1.e))) from t1 where b-t1.d+b+t1.f>a),t1.a) in (select 19 from t1 union select t1.a from t1) then  -b else a end*b & d) and  -(t1.b)>=e and 11<d or ((19))<> -t1.c then t1.f else t1.f end+(t1.b)+a FROM t1 WHERE NOT (e>e)}
+} {900}
+do_test randexpr-2.163 {
+  db eval {SELECT coalesce((select t1.c*c from t1 where (select (abs(cast(avg(b*13) AS integer))) from t1) in (select 11 from t1 union select e | a-17 from t1)), -case t1.c when t1.b++(select cast(avg(e) AS integer) from t1) then 17 else t1.b end)-d FROM t1 WHERE b<=t1.d}
+} {-600}
+do_test randexpr-2.164 {
+  db eval {SELECT coalesce((select t1.c*c from t1 where (select (abs(cast(avg(b*13) AS integer))) from t1) in (select 11 from t1 union select e | a-17 from t1)), -case t1.c when t1.b++(select cast(avg(e) AS integer) from t1) then 17 else t1.b end)-d FROM t1 WHERE NOT (b<=t1.d)}
+} {}
+do_test randexpr-2.165 {
+  db eval {SELECT coalesce((select t1.c*c from t1 where (select (abs(cast(avg(b*13) AS integer))) from t1) in (select 11 from t1 union select e & a-17 from t1)), -case t1.c when t1.b++(select cast(avg(e) AS integer) from t1) then 17 else t1.b end)-d FROM t1 WHERE b<=t1.d}
+} {-600}
+do_test randexpr-2.166 {
+  db eval {SELECT coalesce((select max((case (abs(t1.b)/abs(e)) when 13 then ((select +case count(*)*count(distinct coalesce((select max((11)+b) from t1 where exists(select 1 from t1 where t1.e=(t1.b))), -13)) when count(distinct  -c) then count(*)*max( -d) else max((a)) end+min(c) from t1)) else t1.a end-(abs(case when a=17 and e<=b then a when a>=e then t1.c else t1.c end+13)/abs(e))*(e))) from t1 where t1.a in (select d from t1 union select  -t1.e from t1)),13) FROM t1 WHERE not coalesce((select max(case when f<=d | b | case when case when (t1.c in (f,19,c)) then t1.f when d>t1.b then t1.f else t1.f end<=c then 11 else c end- -t1.c-13 and t1.c in (select b from t1 union select  -17 from t1) then t1.b else a end) from t1 where 11 between d and a), -17) not between t1.f and t1.f and t1.f>11 or (not exists(select 1 from t1 where t1.b in (select min(t1.d) from t1 union select min(c) from t1)))}
+} {13}
+do_test randexpr-2.167 {
+  db eval {SELECT coalesce((select max((case (abs(t1.b)/abs(e)) when 13 then ((select +case count(*)*count(distinct coalesce((select max((11)+b) from t1 where exists(select 1 from t1 where t1.e=(t1.b))), -13)) when count(distinct  -c) then count(*)*max( -d) else max((a)) end+min(c) from t1)) else t1.a end-(abs(case when a=17 and e<=b then a when a>=e then t1.c else t1.c end+13)/abs(e))*(e))) from t1 where t1.a in (select d from t1 union select  -t1.e from t1)),13) FROM t1 WHERE NOT (not coalesce((select max(case when f<=d | b | case when case when (t1.c in (f,19,c)) then t1.f when d>t1.b then t1.f else t1.f end<=c then 11 else c end- -t1.c-13 and t1.c in (select b from t1 union select  -17 from t1) then t1.b else a end) from t1 where 11 between d and a), -17) not between t1.f and t1.f and t1.f>11 or (not exists(select 1 from t1 where t1.b in (select min(t1.d) from t1 union select min(c) from t1))))}
+} {}
+do_test randexpr-2.168 {
+  db eval {SELECT case when ((t1.e | (select min( -t1.f) from t1)*((abs(b)/abs(19)))-b<=t1.b and not e>13 or  -f in (select count(distinct e)-min(t1.a) from t1 union select count(distinct f) from t1))) then 13 when 17 between f and 19 or 11 between b and 19 or not t1.f>e then t1.d else d | f end FROM t1 WHERE not case when t1.a=t1.a then c when ~case when case when t1.e in (select + -count(distinct t1.d) from t1 union select cast(avg(t1.a) AS integer) from t1) then (t1.e) when 17 in (13, -f,a) then t1.d else d end<17 then e else f end+17+a* -e+b+b>t1.e then t1.e else t1.a end<c and a in (select max( -t1.f) | count(distinct t1.b)+~~count(distinct t1.b)-max(e)- -max(a) from t1 union select min(11) from t1)}
+} {}
+do_test randexpr-2.169 {
+  db eval {SELECT case when ((t1.e | (select min( -t1.f) from t1)*((abs(b)/abs(19)))-b<=t1.b and not e>13 or  -f in (select count(distinct e)-min(t1.a) from t1 union select count(distinct f) from t1))) then 13 when 17 between f and 19 or 11 between b and 19 or not t1.f>e then t1.d else d | f end FROM t1 WHERE NOT (not case when t1.a=t1.a then c when ~case when case when t1.e in (select + -count(distinct t1.d) from t1 union select cast(avg(t1.a) AS integer) from t1) then (t1.e) when 17 in (13, -f,a) then t1.d else d end<17 then e else f end+17+a* -e+b+b>t1.e then t1.e else t1.a end<c and a in (select max( -t1.f) | count(distinct t1.b)+~~count(distinct t1.b)-max(e)- -max(a) from t1 union select min(11) from t1))}
+} {984}
+do_test randexpr-2.170 {
+  db eval {SELECT case when ((t1.e & (select min( -t1.f) from t1)*((abs(b)/abs(19)))-b<=t1.b and not e>13 or  -f in (select count(distinct e)-min(t1.a) from t1 union select count(distinct f) from t1))) then 13 when 17 between f and 19 or 11 between b and 19 or not t1.f>e then t1.d else d & f end FROM t1 WHERE NOT (not case when t1.a=t1.a then c when ~case when case when t1.e in (select + -count(distinct t1.d) from t1 union select cast(avg(t1.a) AS integer) from t1) then (t1.e) when 17 in (13, -f,a) then t1.d else d end<17 then e else f end+17+a* -e+b+b>t1.e then t1.e else t1.a end<c and a in (select max( -t1.f) | count(distinct t1.b)+~~count(distinct t1.b)-max(e)- -max(a) from t1 union select min(11) from t1))}
+} {16}
+do_test randexpr-2.171 {
+  db eval {SELECT coalesce((select (select cast(avg(~13) AS integer)-count(distinct ~19-coalesce((select d-17 from t1 where case when (case 17 when b then d else (select min(11) | min(17) from t1)++t1.a end in (d, -c,t1.d)) then b else t1.c end between t1.a and (t1.e)),19)-t1.f) from t1) | (abs(t1.e)/abs(t1.e)) from t1 where (t1.c not in (( -t1.d),(t1.b),(d)))),t1.e) FROM t1 WHERE 13 between 19 and ~ -(abs( -t1.d | coalesce((select t1.f from t1 where 19 not between + -case when ~~b+coalesce((select max(t1.d) from t1 where exists(select 1 from t1 where (select cast(avg(19) AS integer)-cast(avg(b) AS integer) from t1)<>a and 19 between 11 and b and 11 between a and b)),t1.f) | c in ( -t1.c,13,b) then 11 when f in (select min(t1.d) from t1 union select cast(avg(f) AS integer) from t1) then t1.b else a end and t1.a),t1.c))/abs(11))+ -f}
+} {}
+do_test randexpr-2.172 {
+  db eval {SELECT coalesce((select (select cast(avg(~13) AS integer)-count(distinct ~19-coalesce((select d-17 from t1 where case when (case 17 when b then d else (select min(11) | min(17) from t1)++t1.a end in (d, -c,t1.d)) then b else t1.c end between t1.a and (t1.e)),19)-t1.f) from t1) | (abs(t1.e)/abs(t1.e)) from t1 where (t1.c not in (( -t1.d),(t1.b),(d)))),t1.e) FROM t1 WHERE NOT (13 between 19 and ~ -(abs( -t1.d | coalesce((select t1.f from t1 where 19 not between + -case when ~~b+coalesce((select max(t1.d) from t1 where exists(select 1 from t1 where (select cast(avg(19) AS integer)-cast(avg(b) AS integer) from t1)<>a and 19 between 11 and b and 11 between a and b)),t1.f) | c in ( -t1.c,13,b) then 11 when f in (select min(t1.d) from t1 union select cast(avg(f) AS integer) from t1) then t1.b else a end and t1.a),t1.c))/abs(11))+ -f)}
+} {-15}
+do_test randexpr-2.173 {
+  db eval {SELECT coalesce((select (select cast(avg(~13) AS integer)-count(distinct ~19-coalesce((select d-17 from t1 where case when (case 17 when b then d else (select min(11) & min(17) from t1)++t1.a end in (d, -c,t1.d)) then b else t1.c end between t1.a and (t1.e)),19)-t1.f) from t1) & (abs(t1.e)/abs(t1.e)) from t1 where (t1.c not in (( -t1.d),(t1.b),(d)))),t1.e) FROM t1 WHERE NOT (13 between 19 and ~ -(abs( -t1.d | coalesce((select t1.f from t1 where 19 not between + -case when ~~b+coalesce((select max(t1.d) from t1 where exists(select 1 from t1 where (select cast(avg(19) AS integer)-cast(avg(b) AS integer) from t1)<>a and 19 between 11 and b and 11 between a and b)),t1.f) | c in ( -t1.c,13,b) then 11 when f in (select min(t1.d) from t1 union select cast(avg(f) AS integer) from t1) then t1.b else a end and t1.a),t1.c))/abs(11))+ -f)}
+} {1}
+do_test randexpr-2.174 {
+  db eval {SELECT coalesce((select max(+(d+a)*b) from t1 where (case e-t1.b when 17+11*13 then t1.a else 17 end-(17)<>(select cast(avg(t1.f) AS integer) from t1))),case when case when 11+13<>19 then 13 else t1.f end*e in (a,t1.f,t1.c) and not exists(select 1 from t1 where t1.b in (select  - -count(distinct t1.b)*( -count(*)) from t1 union select count(distinct t1.e) from t1)) then t1.c else a end) FROM t1 WHERE case when t1.d in (select count(*)-count(*)+ -min(case d when t1.c then 19 else 11 end)*count(*) | min(19)-(max((e))) from t1 union select count(*) from t1) then c when exists(select 1 from t1 where exists(select 1 from t1 where not exists(select 1 from t1 where (abs(b)/abs(t1.c))>coalesce((select max(f) from t1 where f<=t1.a),t1.d)))) then f*t1.c+11 else t1.f end+e-e*t1.f<=17}
+} {100000}
+do_test randexpr-2.175 {
+  db eval {SELECT coalesce((select max(+(d+a)*b) from t1 where (case e-t1.b when 17+11*13 then t1.a else 17 end-(17)<>(select cast(avg(t1.f) AS integer) from t1))),case when case when 11+13<>19 then 13 else t1.f end*e in (a,t1.f,t1.c) and not exists(select 1 from t1 where t1.b in (select  - -count(distinct t1.b)*( -count(*)) from t1 union select count(distinct t1.e) from t1)) then t1.c else a end) FROM t1 WHERE NOT (case when t1.d in (select count(*)-count(*)+ -min(case d when t1.c then 19 else 11 end)*count(*) | min(19)-(max((e))) from t1 union select count(*) from t1) then c when exists(select 1 from t1 where exists(select 1 from t1 where not exists(select 1 from t1 where (abs(b)/abs(t1.c))>coalesce((select max(f) from t1 where f<=t1.a),t1.d)))) then f*t1.c+11 else t1.f end+e-e*t1.f<=17)}
+} {}
+do_test randexpr-2.176 {
+  db eval {SELECT t1.c*case when t1.e>(select +cast(avg(13) AS integer)*min((11)* - -d |  - -coalesce((select max(b) from t1 where (select cast(avg((abs(a)/abs(b-(e)))) AS integer) from t1)+11*c<t1.d),e)-t1.f-t1.b+(t1.a)) from t1) then t1.c when +b in (17,a,b) then d else f end FROM t1 WHERE ((not exists(select 1 from t1 where not (exists(select 1 from t1 where (t1.c in (select t1.d from t1 union select  -c from t1)) or (select cast(avg(~(e)) AS integer) | min(case when f=t1.e and t1.e in (t1.b,t1.f,t1.a) then t1.f when t1.d>=a then t1.b else t1.b end | 19+a-c)*count(distinct t1.d)-+count(distinct t1.d) from t1) not in (19,d,b) and t1.f not between b and t1.f)))))}
+} {}
+do_test randexpr-2.177 {
+  db eval {SELECT t1.c*case when t1.e>(select +cast(avg(13) AS integer)*min((11)* - -d |  - -coalesce((select max(b) from t1 where (select cast(avg((abs(a)/abs(b-(e)))) AS integer) from t1)+11*c<t1.d),e)-t1.f-t1.b+(t1.a)) from t1) then t1.c when +b in (17,a,b) then d else f end FROM t1 WHERE NOT (((not exists(select 1 from t1 where not (exists(select 1 from t1 where (t1.c in (select t1.d from t1 union select  -c from t1)) or (select cast(avg(~(e)) AS integer) | min(case when f=t1.e and t1.e in (t1.b,t1.f,t1.a) then t1.f when t1.d>=a then t1.b else t1.b end | 19+a-c)*count(distinct t1.d)-+count(distinct t1.d) from t1) not in (19,d,b) and t1.f not between b and t1.f))))))}
+} {90000}
+do_test randexpr-2.178 {
+  db eval {SELECT t1.c*case when t1.e>(select +cast(avg(13) AS integer)*min((11)* - -d &  - -coalesce((select max(b) from t1 where (select cast(avg((abs(a)/abs(b-(e)))) AS integer) from t1)+11*c<t1.d),e)-t1.f-t1.b+(t1.a)) from t1) then t1.c when +b in (17,a,b) then d else f end FROM t1 WHERE NOT (((not exists(select 1 from t1 where not (exists(select 1 from t1 where (t1.c in (select t1.d from t1 union select  -c from t1)) or (select cast(avg(~(e)) AS integer) | min(case when f=t1.e and t1.e in (t1.b,t1.f,t1.a) then t1.f when t1.d>=a then t1.b else t1.b end | 19+a-c)*count(distinct t1.d)-+count(distinct t1.d) from t1) not in (19,d,b) and t1.f not between b and t1.f))))))}
+} {120000}
+do_test randexpr-2.179 {
+  db eval {SELECT case when not exists(select 1 from t1 where (not exists(select 1 from t1 where not exists(select 1 from t1 where not d*19=b))) or t1.a-a-t1.d*t1.f in (select ~case cast(avg(t1.d) AS integer) | count(*)+max(t1.c) when max(17) then cast(avg( -f) AS integer) else  -min(e) end from t1 union select max( -13) from t1)) then (select abs((+ -min(a)) | min(t1.a)-cast(avg(t1.f) AS integer)) | max(e) from t1) else 11 end*a | t1.a*f FROM t1 WHERE t1.c in (c,t1.b,~e) and 13+19-t1.b | coalesce((select max(case d when +t1.e+13*13 then coalesce((select case when f<t1.f then ~d else 19 end from t1 where not d>=e or  -f<=e and t1.d<>19),d) else d end) from t1 where t1.d<b),t1.a)*d*(a)<=t1.d}
+} {61036}
+do_test randexpr-2.180 {
+  db eval {SELECT case when not exists(select 1 from t1 where (not exists(select 1 from t1 where not exists(select 1 from t1 where not d*19=b))) or t1.a-a-t1.d*t1.f in (select ~case cast(avg(t1.d) AS integer) | count(*)+max(t1.c) when max(17) then cast(avg( -f) AS integer) else  -min(e) end from t1 union select max( -13) from t1)) then (select abs((+ -min(a)) | min(t1.a)-cast(avg(t1.f) AS integer)) | max(e) from t1) else 11 end*a | t1.a*f FROM t1 WHERE NOT (t1.c in (c,t1.b,~e) and 13+19-t1.b | coalesce((select max(case d when +t1.e+13*13 then coalesce((select case when f<t1.f then ~d else 19 end from t1 where not d>=e or  -f<=e and t1.d<>19),d) else d end) from t1 where t1.d<b),t1.a)*d*(a)<=t1.d)}
+} {}
+do_test randexpr-2.181 {
+  db eval {SELECT case when not exists(select 1 from t1 where (not exists(select 1 from t1 where not exists(select 1 from t1 where not d*19=b))) or t1.a-a-t1.d*t1.f in (select ~case cast(avg(t1.d) AS integer) & count(*)+max(t1.c) when max(17) then cast(avg( -f) AS integer) else  -min(e) end from t1 union select max( -13) from t1)) then (select abs((+ -min(a)) & min(t1.a)-cast(avg(t1.f) AS integer)) & max(e) from t1) else 11 end*a & t1.a*f FROM t1 WHERE t1.c in (c,t1.b,~e) and 13+19-t1.b | coalesce((select max(case d when +t1.e+13*13 then coalesce((select case when f<t1.f then ~d else 19 end from t1 where not d>=e or  -f<=e and t1.d<>19),d) else d end) from t1 where t1.d<b),t1.a)*d*(a)<=t1.d}
+} {64}
+do_test randexpr-2.182 {
+  db eval {SELECT (abs(t1.f-(abs(case c when t1.a+(select max(17-coalesce((select +e-t1.a+11-13+d+11-t1.a from t1 where t1.e in (select ~coalesce((select a from t1 where t1.c-a=b),t1.c)+17 from t1 union select t1.e from t1)),c)-d) from t1) then 17 else  -t1.e end)/abs(d))-17)/abs(t1.b)) FROM t1 WHERE b in (select +count(distinct (19)-11) from t1 union select case count(*) when  -case min((abs(t1.c*(t1.c)+11)/abs(19))*~d*f) when abs(count(*)+count(*)) then (+(min(e)* -cast(avg(17) AS integer)* -cast(avg(d) AS integer)+max(t1.f))) else (count(*)) end | (min( -((t1.b)))) then (max(t1.c)) else  -count(distinct t1.d) end from t1) and not exists(select 1 from t1 where d<f)}
+} {}
+do_test randexpr-2.183 {
+  db eval {SELECT (abs(t1.f-(abs(case c when t1.a+(select max(17-coalesce((select +e-t1.a+11-13+d+11-t1.a from t1 where t1.e in (select ~coalesce((select a from t1 where t1.c-a=b),t1.c)+17 from t1 union select t1.e from t1)),c)-d) from t1) then 17 else  -t1.e end)/abs(d))-17)/abs(t1.b)) FROM t1 WHERE NOT (b in (select +count(distinct (19)-11) from t1 union select case count(*) when  -case min((abs(t1.c*(t1.c)+11)/abs(19))*~d*f) when abs(count(*)+count(*)) then (+(min(e)* -cast(avg(17) AS integer)* -cast(avg(d) AS integer)+max(t1.f))) else (count(*)) end | (min( -((t1.b)))) then (max(t1.c)) else  -count(distinct t1.d) end from t1) and not exists(select 1 from t1 where d<f))}
+} {2}
+do_test randexpr-2.184 {
+  db eval {SELECT ~case +~c+(case when not exists(select 1 from t1 where t1.d in (select abs( -abs(max(t1.f)-count(distinct e)* -cast(avg(11) AS integer) | count(*))+min(f)*min( -17)*cast(avg(19) AS integer)) from t1 union select count(*) from t1)) or (t1.f)<>t1.b then d*t1.f*17 else (b) end)+t1.f*13 when c then t1.a else t1.e end- -t1.f FROM t1 WHERE b-case when t1.b=t1.b and (coalesce((select max(t1.e) from t1 where t1.b in (select ~cast(avg(19) AS integer)+max(t1.b)+min(t1.e) from t1 union select max(t1.a) from t1) or exists(select 1 from t1 where 11 in (select max(t1.e) from t1 union select max(t1.f) from t1))),(abs(17)/abs(17)))) not between c and t1.a then 13 else 13 end | t1.c in (select ++cast(avg(f) AS integer)-(+(count(distinct 13) | max(19))-count(*) |  -max(t1.e)) from t1 union select count(*) from t1)}
+} {}
+do_test randexpr-2.185 {
+  db eval {SELECT ~case +~c+(case when not exists(select 1 from t1 where t1.d in (select abs( -abs(max(t1.f)-count(distinct e)* -cast(avg(11) AS integer) | count(*))+min(f)*min( -17)*cast(avg(19) AS integer)) from t1 union select count(*) from t1)) or (t1.f)<>t1.b then d*t1.f*17 else (b) end)+t1.f*13 when c then t1.a else t1.e end- -t1.f FROM t1 WHERE NOT (b-case when t1.b=t1.b and (coalesce((select max(t1.e) from t1 where t1.b in (select ~cast(avg(19) AS integer)+max(t1.b)+min(t1.e) from t1 union select max(t1.a) from t1) or exists(select 1 from t1 where 11 in (select max(t1.e) from t1 union select max(t1.f) from t1))),(abs(17)/abs(17)))) not between c and t1.a then 13 else 13 end | t1.c in (select ++cast(avg(f) AS integer)-(+(count(distinct 13) | max(19))-count(*) |  -max(t1.e)) from t1 union select count(*) from t1))}
+} {99}
+do_test randexpr-2.186 {
+  db eval {SELECT ~case +~c+(case when not exists(select 1 from t1 where t1.d in (select abs( -abs(max(t1.f)-count(distinct e)* -cast(avg(11) AS integer) & count(*))+min(f)*min( -17)*cast(avg(19) AS integer)) from t1 union select count(*) from t1)) or (t1.f)<>t1.b then d*t1.f*17 else (b) end)+t1.f*13 when c then t1.a else t1.e end- -t1.f FROM t1 WHERE NOT (b-case when t1.b=t1.b and (coalesce((select max(t1.e) from t1 where t1.b in (select ~cast(avg(19) AS integer)+max(t1.b)+min(t1.e) from t1 union select max(t1.a) from t1) or exists(select 1 from t1 where 11 in (select max(t1.e) from t1 union select max(t1.f) from t1))),(abs(17)/abs(17)))) not between c and t1.a then 13 else 13 end | t1.c in (select ++cast(avg(f) AS integer)-(+(count(distinct 13) | max(19))-count(*) |  -max(t1.e)) from t1 union select count(*) from t1))}
+} {99}
+do_test randexpr-2.187 {
+  db eval {SELECT case when t1.c in (select c from t1 union select a from t1) then 11 when ((select max(19) from t1) | t1.a+e not between (case  -19 when b*e-b-case when b<>~d*t1.d+t1.c*d then t1.d when t1.c=19 then f else d end-f*t1.d then t1.d else 13 end) and 13) then 11 else t1.b end FROM t1 WHERE t1.b*coalesce((select max(t1.d) from t1 where  -f<=(select max(t1.e) from t1)*e),case when case when t1.e- -13>t1.b+t1.f+c then 13 else  -d end in (select 19 from t1 union select t1.f from t1) then e when t1.b in (select ~count(distinct t1.a)+count(*) from t1 union select abs( - -((cast(avg(c) AS integer)))*(cast(avg(t1.b) AS integer))) from t1) then 17 else d end)+ -17 | t1.a-t1.d in (t1.e,f,f)}
+} {}
+do_test randexpr-2.188 {
+  db eval {SELECT case when t1.c in (select c from t1 union select a from t1) then 11 when ((select max(19) from t1) | t1.a+e not between (case  -19 when b*e-b-case when b<>~d*t1.d+t1.c*d then t1.d when t1.c=19 then f else d end-f*t1.d then t1.d else 13 end) and 13) then 11 else t1.b end FROM t1 WHERE NOT (t1.b*coalesce((select max(t1.d) from t1 where  -f<=(select max(t1.e) from t1)*e),case when case when t1.e- -13>t1.b+t1.f+c then 13 else  -d end in (select 19 from t1 union select t1.f from t1) then e when t1.b in (select ~count(distinct t1.a)+count(*) from t1 union select abs( - -((cast(avg(c) AS integer)))*(cast(avg(t1.b) AS integer))) from t1) then 17 else d end)+ -17 | t1.a-t1.d in (t1.e,f,f))}
+} {11}
+do_test randexpr-2.189 {
+  db eval {SELECT case when t1.c in (select c from t1 union select a from t1) then 11 when ((select max(19) from t1) & t1.a+e not between (case  -19 when b*e-b-case when b<>~d*t1.d+t1.c*d then t1.d when t1.c=19 then f else d end-f*t1.d then t1.d else 13 end) and 13) then 11 else t1.b end FROM t1 WHERE NOT (t1.b*coalesce((select max(t1.d) from t1 where  -f<=(select max(t1.e) from t1)*e),case when case when t1.e- -13>t1.b+t1.f+c then 13 else  -d end in (select 19 from t1 union select t1.f from t1) then e when t1.b in (select ~count(distinct t1.a)+count(*) from t1 union select abs( - -((cast(avg(c) AS integer)))*(cast(avg(t1.b) AS integer))) from t1) then 17 else d end)+ -17 | t1.a-t1.d in (t1.e,f,f))}
+} {11}
+do_test randexpr-2.190 {
+  db eval {SELECT ~(d)-(select case case cast(avg(t1.b- -~b) AS integer) when max(coalesce((select e from t1 where 11<>e),coalesce((select c from t1 where c not in (t1.e,a,(17)) or t1.b in ((b),t1.c,t1.f)),13))) then +cast(avg(d) AS integer) | case max(t1.c) when min((e)) then max(e)+cast(avg(t1.d) AS integer) else min(t1.f) end+max(d) else count(*) end |  -cast(avg(t1.f) AS integer) |  - -count(distinct c)*max(b) when count(distinct t1.d) then  - -min(a) else count(*) end from t1) FROM t1 WHERE t1.c+a=t1.e+t1.c*t1.e | case t1.d when case when 13 in (select min(c) from t1 union select max(d) from t1) or t1.f>=13 then 19 when t1.c<=11 then  -t1.b else 13 end then 13 else t1.e end or f in (select t1.a from t1 union select t1.f from t1) or (t1.a<t1.b) and e>t1.b and (((t1.d not between  -a and t1.f))) or t1.a not in ( -t1.d,13,a) and d<c or d=t1.d or e<d}
+} {-402}
+do_test randexpr-2.191 {
+  db eval {SELECT ~(d)-(select case case cast(avg(t1.b- -~b) AS integer) when max(coalesce((select e from t1 where 11<>e),coalesce((select c from t1 where c not in (t1.e,a,(17)) or t1.b in ((b),t1.c,t1.f)),13))) then +cast(avg(d) AS integer) | case max(t1.c) when min((e)) then max(e)+cast(avg(t1.d) AS integer) else min(t1.f) end+max(d) else count(*) end |  -cast(avg(t1.f) AS integer) |  - -count(distinct c)*max(b) when count(distinct t1.d) then  - -min(a) else count(*) end from t1) FROM t1 WHERE NOT (t1.c+a=t1.e+t1.c*t1.e | case t1.d when case when 13 in (select min(c) from t1 union select max(d) from t1) or t1.f>=13 then 19 when t1.c<=11 then  -t1.b else 13 end then 13 else t1.e end or f in (select t1.a from t1 union select t1.f from t1) or (t1.a<t1.b) and e>t1.b and (((t1.d not between  -a and t1.f))) or t1.a not in ( -t1.d,13,a) and d<c or d=t1.d or e<d)}
+} {}
+do_test randexpr-2.192 {
+  db eval {SELECT ~(d)-(select case case cast(avg(t1.b- -~b) AS integer) when max(coalesce((select e from t1 where 11<>e),coalesce((select c from t1 where c not in (t1.e,a,(17)) or t1.b in ((b),t1.c,t1.f)),13))) then +cast(avg(d) AS integer) & case max(t1.c) when min((e)) then max(e)+cast(avg(t1.d) AS integer) else min(t1.f) end+max(d) else count(*) end &  -cast(avg(t1.f) AS integer) &  - -count(distinct c)*max(b) when count(distinct t1.d) then  - -min(a) else count(*) end from t1) FROM t1 WHERE t1.c+a=t1.e+t1.c*t1.e | case t1.d when case when 13 in (select min(c) from t1 union select max(d) from t1) or t1.f>=13 then 19 when t1.c<=11 then  -t1.b else 13 end then 13 else t1.e end or f in (select t1.a from t1 union select t1.f from t1) or (t1.a<t1.b) and e>t1.b and (((t1.d not between  -a and t1.f))) or t1.a not in ( -t1.d,13,a) and d<c or d=t1.d or e<d}
+} {-402}
+do_test randexpr-2.193 {
+  db eval {SELECT (abs(coalesce((select max(a) from t1 where exists(select 1 from t1 where t1.f<19 and coalesce((select max(case when t1.a+e in (select t1.c from t1 union select f from t1) then f else (17) end) from t1 where t1.e in (f,coalesce((select max(t1.f) from t1 where 17<=((abs(t1.d | (t1.a))/abs(13))*(a))-d),17),e)),t1.c) not between t1.b and 11 and 13<t1.f)),f+t1.d))/abs(19)) FROM t1 WHERE 11*c+17-f in (select min(t1.e*11*case when exists(select 1 from t1 where not exists(select 1 from t1 where + -17<a)) then (abs((d))/abs(13)) when 11 in (select case count(*) when count(distinct t1.f) then count(distinct 17) else cast(avg((11)) AS integer) end from t1 union select cast(avg(t1.c) AS integer) from t1) then b else e end) from t1 union select case count(*) when  -count(distinct t1.d) then max(a) else (count(distinct t1.c))-max((b)) | (count(distinct t1.e))*count(distinct (13))-count(distinct e) end-count(*)-count(*) from t1)}
+} {}
+do_test randexpr-2.194 {
+  db eval {SELECT (abs(coalesce((select max(a) from t1 where exists(select 1 from t1 where t1.f<19 and coalesce((select max(case when t1.a+e in (select t1.c from t1 union select f from t1) then f else (17) end) from t1 where t1.e in (f,coalesce((select max(t1.f) from t1 where 17<=((abs(t1.d | (t1.a))/abs(13))*(a))-d),17),e)),t1.c) not between t1.b and 11 and 13<t1.f)),f+t1.d))/abs(19)) FROM t1 WHERE NOT (11*c+17-f in (select min(t1.e*11*case when exists(select 1 from t1 where not exists(select 1 from t1 where + -17<a)) then (abs((d))/abs(13)) when 11 in (select case count(*) when count(distinct t1.f) then count(distinct 17) else cast(avg((11)) AS integer) end from t1 union select cast(avg(t1.c) AS integer) from t1) then b else e end) from t1 union select case count(*) when  -count(distinct t1.d) then max(a) else (count(distinct t1.c))-max((b)) | (count(distinct t1.e))*count(distinct (13))-count(distinct e) end-count(*)-count(*) from t1))}
+} {52}
+do_test randexpr-2.195 {
+  db eval {SELECT (abs(coalesce((select max(a) from t1 where exists(select 1 from t1 where t1.f<19 and coalesce((select max(case when t1.a+e in (select t1.c from t1 union select f from t1) then f else (17) end) from t1 where t1.e in (f,coalesce((select max(t1.f) from t1 where 17<=((abs(t1.d & (t1.a))/abs(13))*(a))-d),17),e)),t1.c) not between t1.b and 11 and 13<t1.f)),f+t1.d))/abs(19)) FROM t1 WHERE NOT (11*c+17-f in (select min(t1.e*11*case when exists(select 1 from t1 where not exists(select 1 from t1 where + -17<a)) then (abs((d))/abs(13)) when 11 in (select case count(*) when count(distinct t1.f) then count(distinct 17) else cast(avg((11)) AS integer) end from t1 union select cast(avg(t1.c) AS integer) from t1) then b else e end) from t1 union select case count(*) when  -count(distinct t1.d) then max(a) else (count(distinct t1.c))-max((b)) | (count(distinct t1.e))*count(distinct (13))-count(distinct e) end-count(*)-count(*) from t1))}
+} {52}
+do_test randexpr-2.196 {
+  db eval {SELECT coalesce((select max(~t1.d) from t1 where not exists(select 1 from t1 where exists(select 1 from t1 where c>t1.c or ((t1.f>e)) and t1.e-19+c+ -d*t1.d+11<>17+coalesce((select max(t1.d) from t1 where 17+t1.c<t1.d),t1.b) or f<>11))),11) | case e when c then a else t1.b end+a FROM t1 WHERE case when d not in (a,11,(13)) then a when exists(select 1 from t1 where case when case when case when (t1.c) in (c,e,b) then f else (19) end-t1.f<t1.d then 11 else a end>=t1.a then 11 else t1.c end in (select abs(~~max(t1.c)) from t1 union select cast(avg(c) AS integer) from t1)) then 11 else t1.f end in (select (~~count(*)*cast(avg(19) AS integer)) from t1 union select min(t1.d)+ -count(distinct f) from t1)}
+} {}
+do_test randexpr-2.197 {
+  db eval {SELECT coalesce((select max(~t1.d) from t1 where not exists(select 1 from t1 where exists(select 1 from t1 where c>t1.c or ((t1.f>e)) and t1.e-19+c+ -d*t1.d+11<>17+coalesce((select max(t1.d) from t1 where 17+t1.c<t1.d),t1.b) or f<>11))),11) | case e when c then a else t1.b end+a FROM t1 WHERE NOT (case when d not in (a,11,(13)) then a when exists(select 1 from t1 where case when case when case when (t1.c) in (c,e,b) then f else (19) end-t1.f<t1.d then 11 else a end>=t1.a then 11 else t1.c end in (select abs(~~max(t1.c)) from t1 union select cast(avg(c) AS integer) from t1)) then 11 else t1.f end in (select (~~count(*)*cast(avg(19) AS integer)) from t1 union select min(t1.d)+ -count(distinct f) from t1))}
+} {303}
+do_test randexpr-2.198 {
+  db eval {SELECT coalesce((select max(~t1.d) from t1 where not exists(select 1 from t1 where exists(select 1 from t1 where c>t1.c or ((t1.f>e)) and t1.e-19+c+ -d*t1.d+11<>17+coalesce((select max(t1.d) from t1 where 17+t1.c<t1.d),t1.b) or f<>11))),11) & case e when c then a else t1.b end+a FROM t1 WHERE NOT (case when d not in (a,11,(13)) then a when exists(select 1 from t1 where case when case when case when (t1.c) in (c,e,b) then f else (19) end-t1.f<t1.d then 11 else a end>=t1.a then 11 else t1.c end in (select abs(~~max(t1.c)) from t1 union select cast(avg(c) AS integer) from t1)) then 11 else t1.f end in (select (~~count(*)*cast(avg(19) AS integer)) from t1 union select min(t1.d)+ -count(distinct f) from t1))}
+} {8}
+do_test randexpr-2.199 {
+  db eval {SELECT case when t1.e*t1.b<>e then 19 else  -11-b+coalesce((select max(t1.e+t1.f) from t1 where 11+f*t1.c<>t1.a*(~f+case when t1.f in (t1.f, -((13)),19) then t1.a when t1.e>17 then a else a end+b-t1.e-(f))),13)+d end+t1.b* -c FROM t1 WHERE exists(select 1 from t1 where coalesce((select max(t1.a*t1.e+13) from t1 where 13 in ((abs(e)/abs(t1.a)),a+t1.c,17*t1.c)),(select  -case max(c) | cast(avg(e) AS integer) when ~+ -count(distinct coalesce((select d from t1 where exists(select 1 from t1 where  -17<e)),( -t1.e))) | case max(11) when cast(avg(a) AS integer) then max( -t1.f) else count(distinct  -11) end then cast(avg(t1.d) AS integer) else max((d)) end*count(distinct t1.b) from t1) | t1.b-t1.d*t1.c+11)<=b)}
+} {-59981}
+do_test randexpr-2.200 {
+  db eval {SELECT case when t1.e*t1.b<>e then 19 else  -11-b+coalesce((select max(t1.e+t1.f) from t1 where 11+f*t1.c<>t1.a*(~f+case when t1.f in (t1.f, -((13)),19) then t1.a when t1.e>17 then a else a end+b-t1.e-(f))),13)+d end+t1.b* -c FROM t1 WHERE NOT (exists(select 1 from t1 where coalesce((select max(t1.a*t1.e+13) from t1 where 13 in ((abs(e)/abs(t1.a)),a+t1.c,17*t1.c)),(select  -case max(c) | cast(avg(e) AS integer) when ~+ -count(distinct coalesce((select d from t1 where exists(select 1 from t1 where  -17<e)),( -t1.e))) | case max(11) when cast(avg(a) AS integer) then max( -t1.f) else count(distinct  -11) end then cast(avg(t1.d) AS integer) else max((d)) end*count(distinct t1.b) from t1) | t1.b-t1.d*t1.c+11)<=b))}
+} {}
+do_test randexpr-2.201 {
+  db eval {SELECT coalesce((select max(coalesce((select 19 from t1 where (case when ((abs(coalesce((select max(case when t1.a between (t1.c)+ -b and d then e else d end) from t1 where t1.e in (select (count(*)) from t1 union select max( -a)-count(distinct t1.c)-((min(13))) | max((t1.f)) from t1)),11))/abs(19)))+d>c then t1.b when 17 not between t1.e and c then 11 else f end in (select a from t1 union select 13 from t1))),11)) from t1 where not exists(select 1 from t1 where f=17)),e) FROM t1 WHERE ( -13 in (13,b,case when 19=11 then t1.d else case when (d | b-case when t1.f-(select +abs(cast(avg( -17* -17) AS integer)*count(*)+max(t1.e)) from t1)*t1.f not in (f,a,c) then t1.a else t1.b end between 19 and e) then a else 13 end end-t1.a) or t1.c<19)}
+} {}
+do_test randexpr-2.202 {
+  db eval {SELECT coalesce((select max(coalesce((select 19 from t1 where (case when ((abs(coalesce((select max(case when t1.a between (t1.c)+ -b and d then e else d end) from t1 where t1.e in (select (count(*)) from t1 union select max( -a)-count(distinct t1.c)-((min(13))) | max((t1.f)) from t1)),11))/abs(19)))+d>c then t1.b when 17 not between t1.e and c then 11 else f end in (select a from t1 union select 13 from t1))),11)) from t1 where not exists(select 1 from t1 where f=17)),e) FROM t1 WHERE NOT (( -13 in (13,b,case when 19=11 then t1.d else case when (d | b-case when t1.f-(select +abs(cast(avg( -17* -17) AS integer)*count(*)+max(t1.e)) from t1)*t1.f not in (f,a,c) then t1.a else t1.b end between 19 and e) then a else 13 end end-t1.a) or t1.c<19))}
+} {11}
+do_test randexpr-2.203 {
+  db eval {SELECT coalesce((select max(coalesce((select 19 from t1 where (case when ((abs(coalesce((select max(case when t1.a between (t1.c)+ -b and d then e else d end) from t1 where t1.e in (select (count(*)) from t1 union select max( -a)-count(distinct t1.c)-((min(13))) & max((t1.f)) from t1)),11))/abs(19)))+d>c then t1.b when 17 not between t1.e and c then 11 else f end in (select a from t1 union select 13 from t1))),11)) from t1 where not exists(select 1 from t1 where f=17)),e) FROM t1 WHERE NOT (( -13 in (13,b,case when 19=11 then t1.d else case when (d | b-case when t1.f-(select +abs(cast(avg( -17* -17) AS integer)*count(*)+max(t1.e)) from t1)*t1.f not in (f,a,c) then t1.a else t1.b end between 19 and e) then a else 13 end end-t1.a) or t1.c<19))}
+} {11}
+do_test randexpr-2.204 {
+  db eval {SELECT  -~d*19-a-c | t1.c+(abs(case  -19 | ~case t1.d when c then t1.f else c end when +t1.d then 17 else case case when b>case case when t1.c=d or  -t1.a=17 then ((a)) when t1.a<>d then (t1.c) else a end+19+11 when 19 then t1.a else b end-(t1.e) then f else t1.c end when 17 then t1.b else a end end)/abs(d))+t1.b FROM t1 WHERE t1.f+13<>19}
+} {7671}
+do_test randexpr-2.205 {
+  db eval {SELECT  -~d*19-a-c | t1.c+(abs(case  -19 | ~case t1.d when c then t1.f else c end when +t1.d then 17 else case case when b>case case when t1.c=d or  -t1.a=17 then ((a)) when t1.a<>d then (t1.c) else a end+19+11 when 19 then t1.a else b end-(t1.e) then f else t1.c end when 17 then t1.b else a end end)/abs(d))+t1.b FROM t1 WHERE NOT (t1.f+13<>19)}
+} {}
+do_test randexpr-2.206 {
+  db eval {SELECT  -~d*19-a-c & t1.c+(abs(case  -19 & ~case t1.d when c then t1.f else c end when +t1.d then 17 else case case when b>case case when t1.c=d or  -t1.a=17 then ((a)) when t1.a<>d then (t1.c) else a end+19+11 when 19 then t1.a else b end-(t1.e) then f else t1.c end when 17 then t1.b else a end end)/abs(d))+t1.b FROM t1 WHERE t1.f+13<>19}
+} {48}
+do_test randexpr-2.207 {
+  db eval {SELECT (abs(coalesce((select b from t1 where t1.a>(abs(t1.f)/abs(coalesce((select 13 from t1 where not coalesce((select (select cast(avg(case when case when t1.e not between t1.c and 19 then t1.d when d in (11,t1.b,13) then e else 17 end*b between 13 and (t1.b) then t1.f when a<>19 and t1.c not in (a,t1.f,b) then t1.e else t1.f end) AS integer) from t1)+t1.c-b* -a*f from t1 where (t1.d in (select c from t1 union select t1.b from t1))),t1.e)-c<>c),t1.c)))),e))/abs(t1.e)) FROM t1 WHERE (t1.a-t1.c-case when e<c*17 then t1.e when case case t1.b when t1.c then coalesce((select max(t1.c) from t1 where t1.c in (select ~cast(avg(case when 17 in (t1.f,t1.f,t1.a) then c when 13<>b then f else d end | t1.d) AS integer) from t1 union select count(distinct 11) from t1)),c) else t1.f end when f then 19 else t1.b end<t1.f then t1.b else t1.e end-11 not between 11 and t1.d)}
+} {0}
+do_test randexpr-2.208 {
+  db eval {SELECT (abs(coalesce((select b from t1 where t1.a>(abs(t1.f)/abs(coalesce((select 13 from t1 where not coalesce((select (select cast(avg(case when case when t1.e not between t1.c and 19 then t1.d when d in (11,t1.b,13) then e else 17 end*b between 13 and (t1.b) then t1.f when a<>19 and t1.c not in (a,t1.f,b) then t1.e else t1.f end) AS integer) from t1)+t1.c-b* -a*f from t1 where (t1.d in (select c from t1 union select t1.b from t1))),t1.e)-c<>c),t1.c)))),e))/abs(t1.e)) FROM t1 WHERE NOT ((t1.a-t1.c-case when e<c*17 then t1.e when case case t1.b when t1.c then coalesce((select max(t1.c) from t1 where t1.c in (select ~cast(avg(case when 17 in (t1.f,t1.f,t1.a) then c when 13<>b then f else d end | t1.d) AS integer) from t1 union select count(distinct 11) from t1)),c) else t1.f end when f then 19 else t1.b end<t1.f then t1.b else t1.e end-11 not between 11 and t1.d))}
+} {}
+do_test randexpr-2.209 {
+  db eval {SELECT case when t1.d<>d then case 11 when ~+case t1.a when (abs(t1.a)/abs( -c))*t1.c+ -a+coalesce((select t1.c from t1 where ((abs(e)/abs((case when (11>=e) then  -17 when (11)<=a then e else b end)+t1.f))>19)),b)-d then c else 17 end+ -b then ( -t1.a) else c end when 11<=t1.f then 11 else 17 end FROM t1 WHERE (coalesce((select max(17) from t1 where ~case ((select min( -e-a)*+cast(avg(11) AS integer)*count(*)-(count(*))*max(b)*min( -13)+count(*)-min( -13) from t1)+19)+a when e then (select min(f) from t1) else coalesce((select t1.f from t1 where 17>t1.c),19) end=11 and f=t1.b),19) not between  -a and t1.a)}
+} {}
+do_test randexpr-2.210 {
+  db eval {SELECT case when t1.d<>d then case 11 when ~+case t1.a when (abs(t1.a)/abs( -c))*t1.c+ -a+coalesce((select t1.c from t1 where ((abs(e)/abs((case when (11>=e) then  -17 when (11)<=a then e else b end)+t1.f))>19)),b)-d then c else 17 end+ -b then ( -t1.a) else c end when 11<=t1.f then 11 else 17 end FROM t1 WHERE NOT ((coalesce((select max(17) from t1 where ~case ((select min( -e-a)*+cast(avg(11) AS integer)*count(*)-(count(*))*max(b)*min( -13)+count(*)-min( -13) from t1)+19)+a when e then (select min(f) from t1) else coalesce((select t1.f from t1 where 17>t1.c),19) end=11 and f=t1.b),19) not between  -a and t1.a))}
+} {11}
+do_test randexpr-2.211 {
+  db eval {SELECT coalesce((select max(t1.e) from t1 where not d in (select (abs(t1.f)/abs(~case when (abs(t1.e)/abs( -t1.a))+t1.b-t1.e*t1.a-t1.c between b and t1.e then f else a end+19)) from t1 union select 13 from t1) or (t1.e=(a)) and  -11 in (select t1.f from t1 union select c from t1)),a)*coalesce((select max(f) from t1 where d=f),f)*c+(t1.c) FROM t1 WHERE case when +(abs(19)/abs(13*t1.e))<>11 then 19 when coalesce((select max(c) from t1 where t1.e+t1.a between t1.f and f),t1.a)=(a) then d else  -19 end<=f or (((e in (b,t1.b,13)))) or b<(f) and t1.a<>11 or exists(select 1 from t1 where t1.d=d) or (t1.a)<>a or t1.a<>e}
+} {90000300}
+do_test randexpr-2.212 {
+  db eval {SELECT coalesce((select max(t1.e) from t1 where not d in (select (abs(t1.f)/abs(~case when (abs(t1.e)/abs( -t1.a))+t1.b-t1.e*t1.a-t1.c between b and t1.e then f else a end+19)) from t1 union select 13 from t1) or (t1.e=(a)) and  -11 in (select t1.f from t1 union select c from t1)),a)*coalesce((select max(f) from t1 where d=f),f)*c+(t1.c) FROM t1 WHERE NOT (case when +(abs(19)/abs(13*t1.e))<>11 then 19 when coalesce((select max(c) from t1 where t1.e+t1.a between t1.f and f),t1.a)=(a) then d else  -19 end<=f or (((e in (b,t1.b,13)))) or b<(f) and t1.a<>11 or exists(select 1 from t1 where t1.d=d) or (t1.a)<>a or t1.a<>e)}
+} {}
+do_test randexpr-2.213 {
+  db eval {SELECT case (select abs(count(distinct  -17+(abs(c)/abs(case when exists(select 1 from t1 where (17<>(f))) then e when t1.c not between 11 and t1.d then +11 else t1.e end | b))+d)*+ -(min(f)*max(t1.e))*+cast(avg(t1.f) AS integer) | count(distinct (f))- - -count(*)-cast(avg((e)) AS integer)) from t1) when (abs(11)/abs(t1.e)) then 13 else b end FROM t1 WHERE case when t1.e not between coalesce((select (select count(*)+case max(17) when count(distinct 19-t1.c*t1.c-e) then  -min(b)-cast(avg((13)) AS integer)*count(*) else min(19) end from t1)*a*t1.d-17*a+17 from t1 where t1.d not in (13,t1.f, -c)),t1.c) and e then ( -b) when (13)>=(e) then t1.c else e end in (t1.d,t1.c, -11)}
+} {}
+do_test randexpr-2.214 {
+  db eval {SELECT case (select abs(count(distinct  -17+(abs(c)/abs(case when exists(select 1 from t1 where (17<>(f))) then e when t1.c not between 11 and t1.d then +11 else t1.e end | b))+d)*+ -(min(f)*max(t1.e))*+cast(avg(t1.f) AS integer) | count(distinct (f))- - -count(*)-cast(avg((e)) AS integer)) from t1) when (abs(11)/abs(t1.e)) then 13 else b end FROM t1 WHERE NOT (case when t1.e not between coalesce((select (select count(*)+case max(17) when count(distinct 19-t1.c*t1.c-e) then  -min(b)-cast(avg((13)) AS integer)*count(*) else min(19) end from t1)*a*t1.d-17*a+17 from t1 where t1.d not in (13,t1.f, -c)),t1.c) and e then ( -b) when (13)>=(e) then t1.c else e end in (t1.d,t1.c, -11))}
+} {200}
+do_test randexpr-2.215 {
+  db eval {SELECT case (select abs(count(distinct  -17+(abs(c)/abs(case when exists(select 1 from t1 where (17<>(f))) then e when t1.c not between 11 and t1.d then +11 else t1.e end & b))+d)*+ -(min(f)*max(t1.e))*+cast(avg(t1.f) AS integer) & count(distinct (f))- - -count(*)-cast(avg((e)) AS integer)) from t1) when (abs(11)/abs(t1.e)) then 13 else b end FROM t1 WHERE NOT (case when t1.e not between coalesce((select (select count(*)+case max(17) when count(distinct 19-t1.c*t1.c-e) then  -min(b)-cast(avg((13)) AS integer)*count(*) else min(19) end from t1)*a*t1.d-17*a+17 from t1 where t1.d not in (13,t1.f, -c)),t1.c) and e then ( -b) when (13)>=(e) then t1.c else e end in (t1.d,t1.c, -11))}
+} {200}
+do_test randexpr-2.216 {
+  db eval {SELECT  -case when d<d or not exists(select 1 from t1 where not exists(select 1 from t1 where not not not exists(select 1 from t1 where not e+~t1.c between t1.e and t1.c and t1.c>t1.d))) then case +coalesce((select case when 13>t1.b then 17+t1.d+d when 17 in (t1.b,b,b) and 17<=t1.e then (c) else t1.d end from t1 where 17<a),11) when f then t1.c else b end when 19 between 11 and t1.e then f else a end-19*13 FROM t1 WHERE exists(select 1 from t1 where +13 in (select count(distinct 13) from t1 union select case count(*)+ -(max(t1.c)) when count(*) | ~( -count(*)-count(distinct  -f))+min(a)-max(t1.b) then  - -max(13) else max(e) end+count(distinct 17) from t1) and d*t1.b>b+t1.a*t1.a-coalesce((select max(d) from t1 where (17 between (t1.d) and (f))),t1.e)-t1.c and t1.d>11)}
+} {}
+do_test randexpr-2.217 {
+  db eval {SELECT  -case when d<d or not exists(select 1 from t1 where not exists(select 1 from t1 where not not not exists(select 1 from t1 where not e+~t1.c between t1.e and t1.c and t1.c>t1.d))) then case +coalesce((select case when 13>t1.b then 17+t1.d+d when 17 in (t1.b,b,b) and 17<=t1.e then (c) else t1.d end from t1 where 17<a),11) when f then t1.c else b end when 19 between 11 and t1.e then f else a end-19*13 FROM t1 WHERE NOT (exists(select 1 from t1 where +13 in (select count(distinct 13) from t1 union select case count(*)+ -(max(t1.c)) when count(*) | ~( -count(*)-count(distinct  -f))+min(a)-max(t1.b) then  - -max(13) else max(e) end+count(distinct 17) from t1) and d*t1.b>b+t1.a*t1.a-coalesce((select max(d) from t1 where (17 between (t1.d) and (f))),t1.e)-t1.c and t1.d>11))}
+} {-447}
+do_test randexpr-2.218 {
+  db eval {SELECT (select + -max(t1.c)*abs(min(t1.b) | case (abs(min(13)))+count(*)-max(t1.a) when max(~13) then abs( -~min(t1.b)+abs(count(distinct (select +++cast(avg(t1.b) AS integer)-case  -count(*) when  -count(*) then  -count(distinct b) else count(distinct c) end from t1)))) else count(*) end-max((e))) |  -cast(avg(t1.e) AS integer) from t1) FROM t1 WHERE exists(select 1 from t1 where  -f-d*t1.f-c-coalesce((select max(t1.a) from t1 where 11 not in ((select count(*) from t1),coalesce((select max(t1.f+e) from t1 where t1.b in (select count(distinct t1.c) from t1 union select  -case abs(abs(count(distinct 13))) when max(t1.b) then abs(cast(avg(11) AS integer)) else  -cast(avg(17) AS integer) end from t1)),case t1.f when  -b then 17 else 17 end)- -t1.f,b)),a)+f+c-t1.c<t1.b)}
+} {-452}
+do_test randexpr-2.219 {
+  db eval {SELECT (select + -max(t1.c)*abs(min(t1.b) | case (abs(min(13)))+count(*)-max(t1.a) when max(~13) then abs( -~min(t1.b)+abs(count(distinct (select +++cast(avg(t1.b) AS integer)-case  -count(*) when  -count(*) then  -count(distinct b) else count(distinct c) end from t1)))) else count(*) end-max((e))) |  -cast(avg(t1.e) AS integer) from t1) FROM t1 WHERE NOT (exists(select 1 from t1 where  -f-d*t1.f-c-coalesce((select max(t1.a) from t1 where 11 not in ((select count(*) from t1),coalesce((select max(t1.f+e) from t1 where t1.b in (select count(distinct t1.c) from t1 union select  -case abs(abs(count(distinct 13))) when max(t1.b) then abs(cast(avg(11) AS integer)) else  -cast(avg(17) AS integer) end from t1)),case t1.f when  -b then 17 else 17 end)- -t1.f,b)),a)+f+c-t1.c<t1.b))}
+} {}
+do_test randexpr-2.220 {
+  db eval {SELECT (select + -max(t1.c)*abs(min(t1.b) & case (abs(min(13)))+count(*)-max(t1.a) when max(~13) then abs( -~min(t1.b)+abs(count(distinct (select +++cast(avg(t1.b) AS integer)-case  -count(*) when  -count(*) then  -count(distinct b) else count(distinct c) end from t1)))) else count(*) end-max((e))) &  -cast(avg(t1.e) AS integer) from t1) FROM t1 WHERE exists(select 1 from t1 where  -f-d*t1.f-c-coalesce((select max(t1.a) from t1 where 11 not in ((select count(*) from t1),coalesce((select max(t1.f+e) from t1 where t1.b in (select count(distinct t1.c) from t1 union select  -case abs(abs(count(distinct 13))) when max(t1.b) then abs(cast(avg(11) AS integer)) else  -cast(avg(17) AS integer) end from t1)),case t1.f when  -b then 17 else 17 end)- -t1.f,b)),a)+f+c-t1.c<t1.b)}
+} {-2560}
+do_test randexpr-2.221 {
+  db eval {SELECT  -+(select count(distinct case when (case ~c | coalesce((select max(t1.e-f+t1.d) from t1 where b-coalesce((select max(b) from t1 where t1.c in (select max(t1.d) from t1 union select min(a) from t1)),t1.f) in (select t1.a from t1 union select e from t1)),c) when e then  -c else  -t1.b end in ( -19, -d,b)) then d when t1.e in (19,d,19) and (t1.b between c and t1.a) then t1.d else 17 end-d) from t1) FROM t1 WHERE f<= -b}
+} {}
+do_test randexpr-2.222 {
+  db eval {SELECT  -+(select count(distinct case when (case ~c | coalesce((select max(t1.e-f+t1.d) from t1 where b-coalesce((select max(b) from t1 where t1.c in (select max(t1.d) from t1 union select min(a) from t1)),t1.f) in (select t1.a from t1 union select e from t1)),c) when e then  -c else  -t1.b end in ( -19, -d,b)) then d when t1.e in (19,d,19) and (t1.b between c and t1.a) then t1.d else 17 end-d) from t1) FROM t1 WHERE NOT (f<= -b)}
+} {-1}
+do_test randexpr-2.223 {
+  db eval {SELECT  -+(select count(distinct case when (case ~c & coalesce((select max(t1.e-f+t1.d) from t1 where b-coalesce((select max(b) from t1 where t1.c in (select max(t1.d) from t1 union select min(a) from t1)),t1.f) in (select t1.a from t1 union select e from t1)),c) when e then  -c else  -t1.b end in ( -19, -d,b)) then d when t1.e in (19,d,19) and (t1.b between c and t1.a) then t1.d else 17 end-d) from t1) FROM t1 WHERE NOT (f<= -b)}
+} {-1}
+do_test randexpr-2.224 {
+  db eval {SELECT (abs(~(+t1.b))/abs(~coalesce((select max(t1.a) from t1 where t1.f<+case when not exists(select 1 from t1 where not c+11=case c when t1.e then 13 else t1.f end+t1.e) and t1.f in (select 11 from t1 union select t1.d from t1) and c not in (t1.f,17,a) then case when a=17 or t1.c between t1.e and 19 or t1.a<>e then 19 else t1.c-t1.d end else b end),(e))-t1.a+(13)-19)) FROM t1 WHERE (not t1.e not in (case when exists(select 1 from t1 where 17<=t1.f*17*t1.b) then f+coalesce((select max(t1.b-c-11+t1.c-a) from t1 where 13 in (select t1.e from t1 union select case when a not between t1.f and d or f<t1.f then d when t1.f<=e then d else e end+17- -17 from t1)),t1.c) else t1.f end,e,t1.a) or exists(select 1 from t1 where t1.a not in (t1.c,(t1.d),(t1.c))))}
+} {0}
+do_test randexpr-2.225 {
+  db eval {SELECT (abs(~(+t1.b))/abs(~coalesce((select max(t1.a) from t1 where t1.f<+case when not exists(select 1 from t1 where not c+11=case c when t1.e then 13 else t1.f end+t1.e) and t1.f in (select 11 from t1 union select t1.d from t1) and c not in (t1.f,17,a) then case when a=17 or t1.c between t1.e and 19 or t1.a<>e then 19 else t1.c-t1.d end else b end),(e))-t1.a+(13)-19)) FROM t1 WHERE NOT ((not t1.e not in (case when exists(select 1 from t1 where 17<=t1.f*17*t1.b) then f+coalesce((select max(t1.b-c-11+t1.c-a) from t1 where 13 in (select t1.e from t1 union select case when a not between t1.f and d or f<t1.f then d when t1.f<=e then d else e end+17- -17 from t1)),t1.c) else t1.f end,e,t1.a) or exists(select 1 from t1 where t1.a not in (t1.c,(t1.d),(t1.c)))))}
+} {}
+do_test randexpr-2.226 {
+  db eval {SELECT (select min(b) | case case cast(avg(c) AS integer) when ~+~count(distinct  -19*f*f) then count(distinct (select cast(avg(d-case when t1.a<=19 then 19 else 11 end+f+a) AS integer) from t1))+count(distinct t1.c)+ -+ -count(*) |  - -max((17))*min(t1.b)*min((e)) else max(t1.c) end when ( - - -min(a)) then ( -min(c)) else max((11)) end from t1) FROM t1 WHERE case when (((exists(select 1 from t1 where ~t1.d-t1.f between  -+t1.f*c and f and not t1.e in (19,a,13))) or  -e>=t1.b) and (t1.e<>( -t1.d)) and (t1.c<=13)) then c else d+11 end<=case when (t1.c)>=19 then (t1.e) when (f) not between 11 and f then coalesce((select 13 from t1 where  -t1.b>=d),13) else b end}
+} {203}
+do_test randexpr-2.227 {
+  db eval {SELECT (select min(b) | case case cast(avg(c) AS integer) when ~+~count(distinct  -19*f*f) then count(distinct (select cast(avg(d-case when t1.a<=19 then 19 else 11 end+f+a) AS integer) from t1))+count(distinct t1.c)+ -+ -count(*) |  - -max((17))*min(t1.b)*min((e)) else max(t1.c) end when ( - - -min(a)) then ( -min(c)) else max((11)) end from t1) FROM t1 WHERE NOT (case when (((exists(select 1 from t1 where ~t1.d-t1.f between  -+t1.f*c and f and not t1.e in (19,a,13))) or  -e>=t1.b) and (t1.e<>( -t1.d)) and (t1.c<=13)) then c else d+11 end<=case when (t1.c)>=19 then (t1.e) when (f) not between 11 and f then coalesce((select 13 from t1 where  -t1.b>=d),13) else b end)}
+} {}
+do_test randexpr-2.228 {
+  db eval {SELECT (select min(b) & case case cast(avg(c) AS integer) when ~+~count(distinct  -19*f*f) then count(distinct (select cast(avg(d-case when t1.a<=19 then 19 else 11 end+f+a) AS integer) from t1))+count(distinct t1.c)+ -+ -count(*) &  - -max((17))*min(t1.b)*min((e)) else max(t1.c) end when ( - - -min(a)) then ( -min(c)) else max((11)) end from t1) FROM t1 WHERE case when (((exists(select 1 from t1 where ~t1.d-t1.f between  -+t1.f*c and f and not t1.e in (19,a,13))) or  -e>=t1.b) and (t1.e<>( -t1.d)) and (t1.c<=13)) then c else d+11 end<=case when (t1.c)>=19 then (t1.e) when (f) not between 11 and f then coalesce((select 13 from t1 where  -t1.b>=d),13) else b end}
+} {8}
+do_test randexpr-2.229 {
+  db eval {SELECT case when 19-b in (select (min(case coalesce((select e from t1 where (c not between c and e)),(select abs(count(distinct coalesce((select max( -coalesce((select max(17) from t1 where (d)>17 and c not between d and b),11)-d) from t1 where ((11)) not in (d,d,e)), - -e))) from t1)+t1.e+t1.a) when f then t1.e else t1.a end)) from t1 union select max(11) from t1) then c else f end+t1.e FROM t1 WHERE coalesce((select max(d) from t1 where coalesce((select max(case when (a++19=case t1.d when t1.e then t1.b else t1.a end*f) and  -13=a then case t1.d+13 when t1.f then 17 else t1.f end when (11 not in (d,17,t1.f)) then e else 11 end+b*t1.b) from t1 where exists(select 1 from t1 where exists(select 1 from t1 where t1.f in (select t1.e from t1 union select b from t1)))),(d))<=c),a) between t1.f and d}
+} {}
+do_test randexpr-2.230 {
+  db eval {SELECT case when 19-b in (select (min(case coalesce((select e from t1 where (c not between c and e)),(select abs(count(distinct coalesce((select max( -coalesce((select max(17) from t1 where (d)>17 and c not between d and b),11)-d) from t1 where ((11)) not in (d,d,e)), - -e))) from t1)+t1.e+t1.a) when f then t1.e else t1.a end)) from t1 union select max(11) from t1) then c else f end+t1.e FROM t1 WHERE NOT (coalesce((select max(d) from t1 where coalesce((select max(case when (a++19=case t1.d when t1.e then t1.b else t1.a end*f) and  -13=a then case t1.d+13 when t1.f then 17 else t1.f end when (11 not in (d,17,t1.f)) then e else 11 end+b*t1.b) from t1 where exists(select 1 from t1 where exists(select 1 from t1 where t1.f in (select t1.e from t1 union select b from t1)))),(d))<=c),a) between t1.f and d)}
+} {1100}
+do_test randexpr-2.231 {
+  db eval {SELECT  -t1.e*coalesce((select max(17) from t1 where (11*(select case  -abs( -+count(*)) when  -case +(cast(avg( -f) AS integer)) | (abs(cast(avg(c) AS integer))) when min(d) then  -max(t1.f) else count(*) end then cast(avg( -t1.f) AS integer) else max(b) end from t1)*~t1.e*case (select min(e) from t1) when 17-t1.b then (e) else t1.f+t1.f end) in (select t1.d from t1 union select 19 from t1)), -t1.a) FROM t1 WHERE (select min(19) from t1) in (select 17 from t1 union select  -11+t1.d+t1.c from t1)}
+} {}
+do_test randexpr-2.232 {
+  db eval {SELECT  -t1.e*coalesce((select max(17) from t1 where (11*(select case  -abs( -+count(*)) when  -case +(cast(avg( -f) AS integer)) | (abs(cast(avg(c) AS integer))) when min(d) then  -max(t1.f) else count(*) end then cast(avg( -t1.f) AS integer) else max(b) end from t1)*~t1.e*case (select min(e) from t1) when 17-t1.b then (e) else t1.f+t1.f end) in (select t1.d from t1 union select 19 from t1)), -t1.a) FROM t1 WHERE NOT ((select min(19) from t1) in (select 17 from t1 union select  -11+t1.d+t1.c from t1))}
+} {50000}
+do_test randexpr-2.233 {
+  db eval {SELECT  -t1.e*coalesce((select max(17) from t1 where (11*(select case  -abs( -+count(*)) when  -case +(cast(avg( -f) AS integer)) & (abs(cast(avg(c) AS integer))) when min(d) then  -max(t1.f) else count(*) end then cast(avg( -t1.f) AS integer) else max(b) end from t1)*~t1.e*case (select min(e) from t1) when 17-t1.b then (e) else t1.f+t1.f end) in (select t1.d from t1 union select 19 from t1)), -t1.a) FROM t1 WHERE NOT ((select min(19) from t1) in (select 17 from t1 union select  -11+t1.d+t1.c from t1))}
+} {50000}
+do_test randexpr-2.234 {
+  db eval {SELECT (coalesce((select max(case when t1.e>= -e | 13-19*d then case when c not in (+(select count(*) from t1),coalesce((select max(t1.a) from t1 where 13 in (select case count(distinct t1.a) | count(*) when cast(avg(t1.b) AS integer) then count(distinct a) else min(11) end from t1 union select count(*) from t1)),19),t1.a) then t1.c else c end when t1.f in (select t1.f from t1 union select t1.e from t1) then t1.e else  -t1.e end) from t1 where (17 in (e,d,a))),t1.d)* -19) FROM t1 WHERE (((abs(t1.f)/abs(d)) in (select case (case max(coalesce((select max(e*(t1.d*13+t1.b)-t1.b) from t1 where t1.a=13),(t1.c))) when (case max(t1.a) when  -abs(max(17))-count(distinct 19) then cast(avg(t1.d) AS integer) else max(13) end)*count(distinct t1.c) then (max((t1.b))) else min(19) end) when max(f) then  -(count(distinct t1.f)) else min(t1.b) end from t1 union select cast(avg(13) AS integer) from t1) and (13 in (select ((min(b))) from t1 union select  - -count(*) from t1))))}
+} {}
+do_test randexpr-2.235 {
+  db eval {SELECT (coalesce((select max(case when t1.e>= -e | 13-19*d then case when c not in (+(select count(*) from t1),coalesce((select max(t1.a) from t1 where 13 in (select case count(distinct t1.a) | count(*) when cast(avg(t1.b) AS integer) then count(distinct a) else min(11) end from t1 union select count(*) from t1)),19),t1.a) then t1.c else c end when t1.f in (select t1.f from t1 union select t1.e from t1) then t1.e else  -t1.e end) from t1 where (17 in (e,d,a))),t1.d)* -19) FROM t1 WHERE NOT ((((abs(t1.f)/abs(d)) in (select case (case max(coalesce((select max(e*(t1.d*13+t1.b)-t1.b) from t1 where t1.a=13),(t1.c))) when (case max(t1.a) when  -abs(max(17))-count(distinct 19) then cast(avg(t1.d) AS integer) else max(13) end)*count(distinct t1.c) then (max((t1.b))) else min(19) end) when max(f) then  -(count(distinct t1.f)) else min(t1.b) end from t1 union select cast(avg(13) AS integer) from t1) and (13 in (select ((min(b))) from t1 union select  - -count(*) from t1)))))}
+} {-7600}
+do_test randexpr-2.236 {
+  db eval {SELECT (coalesce((select max(case when t1.e>= -e & 13-19*d then case when c not in (+(select count(*) from t1),coalesce((select max(t1.a) from t1 where 13 in (select case count(distinct t1.a) & count(*) when cast(avg(t1.b) AS integer) then count(distinct a) else min(11) end from t1 union select count(*) from t1)),19),t1.a) then t1.c else c end when t1.f in (select t1.f from t1 union select t1.e from t1) then t1.e else  -t1.e end) from t1 where (17 in (e,d,a))),t1.d)* -19) FROM t1 WHERE NOT ((((abs(t1.f)/abs(d)) in (select case (case max(coalesce((select max(e*(t1.d*13+t1.b)-t1.b) from t1 where t1.a=13),(t1.c))) when (case max(t1.a) when  -abs(max(17))-count(distinct 19) then cast(avg(t1.d) AS integer) else max(13) end)*count(distinct t1.c) then (max((t1.b))) else min(19) end) when max(f) then  -(count(distinct t1.f)) else min(t1.b) end from t1 union select cast(avg(13) AS integer) from t1) and (13 in (select ((min(b))) from t1 union select  - -count(*) from t1)))))}
+} {-7600}
+do_test randexpr-2.237 {
+  db eval {SELECT case when case when b in (select abs(abs( -max(case c+d when f then f else 19 end | c)-( -case min(c) when  -(cast(avg((t1.f)) AS integer)) then count(*) else ((cast(avg(t1.b) AS integer))) end))+count(*)+(max(17))) from t1 union select count(*) from t1) then t1.a when ~13*t1.a- -c not in (b,e,19) then t1.c else (t1.d) end<=(b) and 13 between t1.f and 11 then t1.f else  -19 end FROM t1 WHERE d>=case when t1.d+case when ( -17)-c>11 or b in ((select min(13)+ -cast(avg(11) AS integer) from t1)+~t1.f, -c,(13)) and e in (select (d) from t1 union select f from t1) then t1.a when d= -t1.d then a- -17 else 17 end-t1.c>d then 11 when exists(select 1 from t1 where 17 not between t1.b and t1.b) then t1.b else (t1.a) end}
+} {-19}
+do_test randexpr-2.238 {
+  db eval {SELECT case when case when b in (select abs(abs( -max(case c+d when f then f else 19 end | c)-( -case min(c) when  -(cast(avg((t1.f)) AS integer)) then count(*) else ((cast(avg(t1.b) AS integer))) end))+count(*)+(max(17))) from t1 union select count(*) from t1) then t1.a when ~13*t1.a- -c not in (b,e,19) then t1.c else (t1.d) end<=(b) and 13 between t1.f and 11 then t1.f else  -19 end FROM t1 WHERE NOT (d>=case when t1.d+case when ( -17)-c>11 or b in ((select min(13)+ -cast(avg(11) AS integer) from t1)+~t1.f, -c,(13)) and e in (select (d) from t1 union select f from t1) then t1.a when d= -t1.d then a- -17 else 17 end-t1.c>d then 11 when exists(select 1 from t1 where 17 not between t1.b and t1.b) then t1.b else (t1.a) end)}
+} {}
+do_test randexpr-2.239 {
+  db eval {SELECT case when case when b in (select abs(abs( -max(case c+d when f then f else 19 end & c)-( -case min(c) when  -(cast(avg((t1.f)) AS integer)) then count(*) else ((cast(avg(t1.b) AS integer))) end))+count(*)+(max(17))) from t1 union select count(*) from t1) then t1.a when ~13*t1.a- -c not in (b,e,19) then t1.c else (t1.d) end<=(b) and 13 between t1.f and 11 then t1.f else  -19 end FROM t1 WHERE d>=case when t1.d+case when ( -17)-c>11 or b in ((select min(13)+ -cast(avg(11) AS integer) from t1)+~t1.f, -c,(13)) and e in (select (d) from t1 union select f from t1) then t1.a when d= -t1.d then a- -17 else 17 end-t1.c>d then 11 when exists(select 1 from t1 where 17 not between t1.b and t1.b) then t1.b else (t1.a) end}
+} {-19}
+do_test randexpr-2.240 {
+  db eval {SELECT e-coalesce((select coalesce((select max(19) from t1 where (coalesce((select max(case 11 when b then 13 else t1.a end) from t1 where 19 not in (c,t1.f,b)),t1.a)+t1.d in (select 17 from t1 union select 19 from t1) and 11 in (13,t1.c,17) or 19 not in (t1.f,a,17) or t1.e not between 13 and f and a>=d)),(a)-17+t1.f)+t1.a+17 from t1 where not exists(select 1 from t1 where a>t1.f)),t1.b) FROM t1 WHERE t1.a-17 in (select (abs(count(*)))-case case case abs(abs(count(*))) when min(t1.f) then count(*) else cast(avg(+t1.a+(e) | 19*e+t1.f) AS integer) end when abs(+cast(avg(b) AS integer) | count(distinct (13))*+~ -(min(e)) | cast(avg(19) AS integer)) then cast(avg(19) AS integer) else count(distinct t1.c) end | min(t1.d) when count(*) then (count(distinct d)) else (min(11)) end from t1 union select (cast(avg(t1.a) AS integer)) from t1)}
+} {}
+do_test randexpr-2.241 {
+  db eval {SELECT e-coalesce((select coalesce((select max(19) from t1 where (coalesce((select max(case 11 when b then 13 else t1.a end) from t1 where 19 not in (c,t1.f,b)),t1.a)+t1.d in (select 17 from t1 union select 19 from t1) and 11 in (13,t1.c,17) or 19 not in (t1.f,a,17) or t1.e not between 13 and f and a>=d)),(a)-17+t1.f)+t1.a+17 from t1 where not exists(select 1 from t1 where a>t1.f)),t1.b) FROM t1 WHERE NOT (t1.a-17 in (select (abs(count(*)))-case case case abs(abs(count(*))) when min(t1.f) then count(*) else cast(avg(+t1.a+(e) | 19*e+t1.f) AS integer) end when abs(+cast(avg(b) AS integer) | count(distinct (13))*+~ -(min(e)) | cast(avg(19) AS integer)) then cast(avg(19) AS integer) else count(distinct t1.c) end | min(t1.d) when count(*) then (count(distinct d)) else (min(11)) end from t1 union select (cast(avg(t1.a) AS integer)) from t1))}
+} {364}
+do_test randexpr-2.242 {
+  db eval {SELECT  -coalesce((select case when b>19 | f-(select abs(max(t1.b+case when e>17 then 11 else f end)+count(*)) from t1) and case when (19<11*t1.d*t1.b) then 13 else t1.e end not between c and b then d+17 else c end-f from t1 where t1.b>=f),t1.c)+17-a FROM t1 WHERE +c in (+~a+case when ((case t1.d when coalesce((select f from t1 where e in (select count(distinct t1.e) from t1 union select min((abs(t1.c)/abs(e | b)) | d* -t1.d) from t1)),t1.e)+a then c else b end in (select  -cast(avg(t1.c) AS integer)-~cast(avg(11) AS integer) from t1 union select  -count(distinct 19) from t1))) then  -e*19 else 13 end,t1.a,d)}
+} {}
+do_test randexpr-2.243 {
+  db eval {SELECT  -coalesce((select case when b>19 | f-(select abs(max(t1.b+case when e>17 then 11 else f end)+count(*)) from t1) and case when (19<11*t1.d*t1.b) then 13 else t1.e end not between c and b then d+17 else c end-f from t1 where t1.b>=f),t1.c)+17-a FROM t1 WHERE NOT (+c in (+~a+case when ((case t1.d when coalesce((select f from t1 where e in (select count(distinct t1.e) from t1 union select min((abs(t1.c)/abs(e | b)) | d* -t1.d) from t1)),t1.e)+a then c else b end in (select  -cast(avg(t1.c) AS integer)-~cast(avg(11) AS integer) from t1 union select  -count(distinct 19) from t1))) then  -e*19 else 13 end,t1.a,d))}
+} {-383}
+do_test randexpr-2.244 {
+  db eval {SELECT  -coalesce((select case when b>19 & f-(select abs(max(t1.b+case when e>17 then 11 else f end)+count(*)) from t1) and case when (19<11*t1.d*t1.b) then 13 else t1.e end not between c and b then d+17 else c end-f from t1 where t1.b>=f),t1.c)+17-a FROM t1 WHERE NOT (+c in (+~a+case when ((case t1.d when coalesce((select f from t1 where e in (select count(distinct t1.e) from t1 union select min((abs(t1.c)/abs(e | b)) | d* -t1.d) from t1)),t1.e)+a then c else b end in (select  -cast(avg(t1.c) AS integer)-~cast(avg(11) AS integer) from t1 union select  -count(distinct 19) from t1))) then  -e*19 else 13 end,t1.a,d))}
+} {-383}
+do_test randexpr-2.245 {
+  db eval {SELECT case when t1.b>=+(abs(t1.e)/abs(coalesce((select c from t1 where 17<=+(e)),(e)-+~11*17+t1.d-e | +coalesce((select max(t1.d) from t1 where f>e),t1.a)*b | (e))))-t1.a and c>=t1.d or (17 not between e and b) then t1.e else d end FROM t1 WHERE exists(select 1 from t1 where (19-((17))+(b) in (select d*e*a from t1 union select ~19 from t1)) and case b-(abs(case a when coalesce((select max(19) from t1 where exists(select 1 from t1 where exists(select 1 from t1 where b not between e and (t1.f) or a not in (t1.c,17,t1.d)))),case t1.b when  -d then 13 else 13 end)*a+t1.c then e else a end)/abs(t1.d))*t1.e when  -13 then t1.c else 19 end in (select +count(distinct e) from t1 union select count(*) from t1))}
+} {}
+do_test randexpr-2.246 {
+  db eval {SELECT case when t1.b>=+(abs(t1.e)/abs(coalesce((select c from t1 where 17<=+(e)),(e)-+~11*17+t1.d-e | +coalesce((select max(t1.d) from t1 where f>e),t1.a)*b | (e))))-t1.a and c>=t1.d or (17 not between e and b) then t1.e else d end FROM t1 WHERE NOT (exists(select 1 from t1 where (19-((17))+(b) in (select d*e*a from t1 union select ~19 from t1)) and case b-(abs(case a when coalesce((select max(19) from t1 where exists(select 1 from t1 where exists(select 1 from t1 where b not between e and (t1.f) or a not in (t1.c,17,t1.d)))),case t1.b when  -d then 13 else 13 end)*a+t1.c then e else a end)/abs(t1.d))*t1.e when  -13 then t1.c else 19 end in (select +count(distinct e) from t1 union select count(*) from t1)))}
+} {500}
+do_test randexpr-2.247 {
+  db eval {SELECT case when t1.b>=+(abs(t1.e)/abs(coalesce((select c from t1 where 17<=+(e)),(e)-+~11*17+t1.d-e & +coalesce((select max(t1.d) from t1 where f>e),t1.a)*b & (e))))-t1.a and c>=t1.d or (17 not between e and b) then t1.e else d end FROM t1 WHERE NOT (exists(select 1 from t1 where (19-((17))+(b) in (select d*e*a from t1 union select ~19 from t1)) and case b-(abs(case a when coalesce((select max(19) from t1 where exists(select 1 from t1 where exists(select 1 from t1 where b not between e and (t1.f) or a not in (t1.c,17,t1.d)))),case t1.b when  -d then 13 else 13 end)*a+t1.c then e else a end)/abs(t1.d))*t1.e when  -13 then t1.c else 19 end in (select +count(distinct e) from t1 union select count(*) from t1)))}
+} {500}
+do_test randexpr-2.248 {
+  db eval {SELECT case when 11 in (select min(+t1.e)* -max(a)+count(distinct d*11*c)*(count(distinct (e))) | ( -min(t1.b)) | count(distinct 19) | (max(t1.f))-max(t1.b) from t1 union select (min(19)) from t1) then coalesce((select max(17) from t1 where  -17=13 or c in (select t1.d from t1 union select d from t1)),b)*t1.b-a+19 when t1.d<(d) then (d) else 19 end FROM t1 WHERE case when case when t1.c not in (f,19,b) then t1.d-t1.c-case when 17<>t1.a then  -(abs((select cast(avg(b) AS integer)- -max(t1.c) from t1))/abs(t1.c)) else t1.f end-17 | 19 when exists(select 1 from t1 where exists(select 1 from t1 where (e between 13 and (t1.a))) and e<=t1.c) then f else t1.a end>=11 then c when f<a then t1.b else t1.e end=t1.c}
+} {19}
+do_test randexpr-2.249 {
+  db eval {SELECT case when 11 in (select min(+t1.e)* -max(a)+count(distinct d*11*c)*(count(distinct (e))) | ( -min(t1.b)) | count(distinct 19) | (max(t1.f))-max(t1.b) from t1 union select (min(19)) from t1) then coalesce((select max(17) from t1 where  -17=13 or c in (select t1.d from t1 union select d from t1)),b)*t1.b-a+19 when t1.d<(d) then (d) else 19 end FROM t1 WHERE NOT (case when case when t1.c not in (f,19,b) then t1.d-t1.c-case when 17<>t1.a then  -(abs((select cast(avg(b) AS integer)- -max(t1.c) from t1))/abs(t1.c)) else t1.f end-17 | 19 when exists(select 1 from t1 where exists(select 1 from t1 where (e between 13 and (t1.a))) and e<=t1.c) then f else t1.a end>=11 then c when f<a then t1.b else t1.e end=t1.c)}
+} {}
+do_test randexpr-2.250 {
+  db eval {SELECT case when 11 in (select min(+t1.e)* -max(a)+count(distinct d*11*c)*(count(distinct (e))) & ( -min(t1.b)) & count(distinct 19) & (max(t1.f))-max(t1.b) from t1 union select (min(19)) from t1) then coalesce((select max(17) from t1 where  -17=13 or c in (select t1.d from t1 union select d from t1)),b)*t1.b-a+19 when t1.d<(d) then (d) else 19 end FROM t1 WHERE case when case when t1.c not in (f,19,b) then t1.d-t1.c-case when 17<>t1.a then  -(abs((select cast(avg(b) AS integer)- -max(t1.c) from t1))/abs(t1.c)) else t1.f end-17 | 19 when exists(select 1 from t1 where exists(select 1 from t1 where (e between 13 and (t1.a))) and e<=t1.c) then f else t1.a end>=11 then c when f<a then t1.b else t1.e end=t1.c}
+} {19}
+do_test randexpr-2.251 {
+  db eval {SELECT c*~17+~case when (exists(select 1 from t1 where not exists(select 1 from t1 where (abs(e)/abs(c))=case when t1.c not in (a,13,11) and t1.b>=c then t1.b else t1.f end)) and 17<>f) then case when (e) not in (t1.a,t1.f,e) then case case t1.c when 13 then 19 else t1.d end-19 when t1.d then  -t1.b else t1.f end when t1.d not in (17,t1.a,t1.d) or c in (d,(19),t1.b) then  -t1.b else c end else 19 end+t1.b-f+t1.e FROM t1 WHERE t1.f-case when (coalesce((select 13*(abs(~11)/abs(t1.b)) from t1 where ~a between +f+~+17 and t1.e),e) not between coalesce((select 19-(abs(11)/abs(t1.b)) from t1 where f<>c),t1.b) and t1.f or t1.d between (select case min(a) when cast(avg(e) AS integer) then  -((count(*))) else cast(avg(t1.a) AS integer) end | count(*) from t1) and (t1.a)) then 19 else f end=f}
+} {}
+do_test randexpr-2.252 {
+  db eval {SELECT c*~17+~case when (exists(select 1 from t1 where not exists(select 1 from t1 where (abs(e)/abs(c))=case when t1.c not in (a,13,11) and t1.b>=c then t1.b else t1.f end)) and 17<>f) then case when (e) not in (t1.a,t1.f,e) then case case t1.c when 13 then 19 else t1.d end-19 when t1.d then  -t1.b else t1.f end when t1.d not in (17,t1.a,t1.d) or c in (d,(19),t1.b) then  -t1.b else c end else 19 end+t1.b-f+t1.e FROM t1 WHERE NOT (t1.f-case when (coalesce((select 13*(abs(~11)/abs(t1.b)) from t1 where ~a between +f+~+17 and t1.e),e) not between coalesce((select 19-(abs(11)/abs(t1.b)) from t1 where f<>c),t1.b) and t1.f or t1.d between (select case min(a) when cast(avg(e) AS integer) then  -((count(*))) else cast(avg(t1.a) AS integer) end | count(*) from t1) and (t1.a)) then 19 else f end=f)}
+} {-5601}
+do_test randexpr-2.253 {
+  db eval {SELECT coalesce((select c-t1.a | 17 | b-~t1.e-11 from t1 where not exists(select 1 from t1 where t1.c<=t1.b)),17) FROM t1 WHERE (((coalesce((select max((abs(b-t1.d-19*t1.a*e+~case when t1.e=t1.f-e then (select abs(abs(cast(avg((f)) AS integer))) from t1) else ((abs(t1.b)/abs(t1.a))) end-t1.b-t1.c)/abs(t1.b))) from t1 where not t1.c in (select count(distinct c) from t1 union select count(*) from t1) and 17< -t1.e),(c)) |  -(c))<>e))}
+} {763}
+do_test randexpr-2.254 {
+  db eval {SELECT coalesce((select c-t1.a | 17 | b-~t1.e-11 from t1 where not exists(select 1 from t1 where t1.c<=t1.b)),17) FROM t1 WHERE NOT ((((coalesce((select max((abs(b-t1.d-19*t1.a*e+~case when t1.e=t1.f-e then (select abs(abs(cast(avg((f)) AS integer))) from t1) else ((abs(t1.b)/abs(t1.a))) end-t1.b-t1.c)/abs(t1.b))) from t1 where not t1.c in (select count(distinct c) from t1 union select count(*) from t1) and 17< -t1.e),(c)) |  -(c))<>e)))}
+} {}
+do_test randexpr-2.255 {
+  db eval {SELECT coalesce((select c-t1.a & 17 & b-~t1.e-11 from t1 where not exists(select 1 from t1 where t1.c<=t1.b)),17) FROM t1 WHERE (((coalesce((select max((abs(b-t1.d-19*t1.a*e+~case when t1.e=t1.f-e then (select abs(abs(cast(avg((f)) AS integer))) from t1) else ((abs(t1.b)/abs(t1.a))) end-t1.b-t1.c)/abs(t1.b))) from t1 where not t1.c in (select count(distinct c) from t1 union select count(*) from t1) and 17< -t1.e),(c)) |  -(c))<>e))}
+} {0}
+do_test randexpr-2.256 {
+  db eval {SELECT case case +(select case count(distinct case when case when (abs(f | t1.d)/abs(13))<= -c then t1.a else t1.b end+t1.b<=19 then c when 19=a then 17 else 11 end+13) when ~+case (cast(avg(t1.b) AS integer) | ((count(*)))-max(t1.d)) when count(distinct d) then count(*) else cast(avg(t1.c) AS integer) end then count(*) else count(*) end from t1) when c*t1.a then 13 else t1.a end when a then  -f else t1.a end+d FROM t1 WHERE case when coalesce((select t1.c | c*t1.e-11 from t1 where exists(select 1 from t1 where t1.d-t1.d*d between  - -t1.e and a)), -13)<=e and 11 not in (d,t1.a,f) and t1.a not between 11 and 19 or t1.e<>t1.e and t1.e<c or a between t1.c and c and d>=t1.a or  -t1.e>=b then b when 17 not between t1.f and t1.b then a else b end in (select 11 from t1 union select f from t1)}
+} {}
+do_test randexpr-2.257 {
+  db eval {SELECT case case +(select case count(distinct case when case when (abs(f | t1.d)/abs(13))<= -c then t1.a else t1.b end+t1.b<=19 then c when 19=a then 17 else 11 end+13) when ~+case (cast(avg(t1.b) AS integer) | ((count(*)))-max(t1.d)) when count(distinct d) then count(*) else cast(avg(t1.c) AS integer) end then count(*) else count(*) end from t1) when c*t1.a then 13 else t1.a end when a then  -f else t1.a end+d FROM t1 WHERE NOT (case when coalesce((select t1.c | c*t1.e-11 from t1 where exists(select 1 from t1 where t1.d-t1.d*d between  - -t1.e and a)), -13)<=e and 11 not in (d,t1.a,f) and t1.a not between 11 and 19 or t1.e<>t1.e and t1.e<c or a between t1.c and c and d>=t1.a or  -t1.e>=b then b when 17 not between t1.f and t1.b then a else b end in (select 11 from t1 union select f from t1))}
+} {-200}
+do_test randexpr-2.258 {
+  db eval {SELECT case case +(select case count(distinct case when case when (abs(f & t1.d)/abs(13))<= -c then t1.a else t1.b end+t1.b<=19 then c when 19=a then 17 else 11 end+13) when ~+case (cast(avg(t1.b) AS integer) & ((count(*)))-max(t1.d)) when count(distinct d) then count(*) else cast(avg(t1.c) AS integer) end then count(*) else count(*) end from t1) when c*t1.a then 13 else t1.a end when a then  -f else t1.a end+d FROM t1 WHERE NOT (case when coalesce((select t1.c | c*t1.e-11 from t1 where exists(select 1 from t1 where t1.d-t1.d*d between  - -t1.e and a)), -13)<=e and 11 not in (d,t1.a,f) and t1.a not between 11 and 19 or t1.e<>t1.e and t1.e<c or a between t1.c and c and d>=t1.a or  -t1.e>=b then b when 17 not between t1.f and t1.b then a else b end in (select 11 from t1 union select f from t1))}
+} {-200}
+do_test randexpr-2.259 {
+  db eval {SELECT f*coalesce((select max((select count(*) from t1)) from t1 where ~case when t1.e<=case when 17>=+case when c*a in (c,t1.b,13) then t1.e when a>t1.b and a<=19 then c else t1.e end then t1.c else 17 end-f*17 or a between b and 19 then t1.c when  -f<=11 then c else  -11 end*t1.c+d>=e),17) FROM t1 WHERE (19 not between t1.b and ~e)}
+} {10200}
+do_test randexpr-2.260 {
+  db eval {SELECT f*coalesce((select max((select count(*) from t1)) from t1 where ~case when t1.e<=case when 17>=+case when c*a in (c,t1.b,13) then t1.e when a>t1.b and a<=19 then c else t1.e end then t1.c else 17 end-f*17 or a between b and 19 then t1.c when  -f<=11 then c else  -11 end*t1.c+d>=e),17) FROM t1 WHERE NOT ((19 not between t1.b and ~e))}
+} {}
+do_test randexpr-2.261 {
+  db eval {SELECT coalesce((select max(t1.c- -case when (~(select max(b*t1.a)*~((min(t1.e))-min((a))) |  -cast(avg(t1.e+t1.a) AS integer) from t1))<d then c else (abs( -~19)/abs(c)) end-coalesce((select max(t1.e+a) from t1 where 11<>c or (t1.b)> -(11)),11)) from t1 where  -11 in ((d),f,t1.d)),t1.a) FROM t1 WHERE c<>e+t1.c}
+} {100}
+do_test randexpr-2.262 {
+  db eval {SELECT coalesce((select max(t1.c- -case when (~(select max(b*t1.a)*~((min(t1.e))-min((a))) |  -cast(avg(t1.e+t1.a) AS integer) from t1))<d then c else (abs( -~19)/abs(c)) end-coalesce((select max(t1.e+a) from t1 where 11<>c or (t1.b)> -(11)),11)) from t1 where  -11 in ((d),f,t1.d)),t1.a) FROM t1 WHERE NOT (c<>e+t1.c)}
+} {}
+do_test randexpr-2.263 {
+  db eval {SELECT coalesce((select max(t1.c- -case when (~(select max(b*t1.a)*~((min(t1.e))-min((a))) &  -cast(avg(t1.e+t1.a) AS integer) from t1))<d then c else (abs( -~19)/abs(c)) end-coalesce((select max(t1.e+a) from t1 where 11<>c or (t1.b)> -(11)),11)) from t1 where  -11 in ((d),f,t1.d)),t1.a) FROM t1 WHERE c<>e+t1.c}
+} {100}
+do_test randexpr-2.264 {
+  db eval {SELECT  -case when (not exists(select 1 from t1 where e*d*case 17 when case t1.c-t1.f when t1.a then t1.a else 11 end then t1.c else t1.b end-e+(t1.a)-e not in (e,e,t1.a) and (t1.f not between 19 and t1.e))) and t1.b<t1.a then f-d-c+b when 17=17 then 19 else d end FROM t1 WHERE f*t1.a not between coalesce((select t1.b from t1 where 17=13),17*e) and e}
+} {-19}
+do_test randexpr-2.265 {
+  db eval {SELECT  -case when (not exists(select 1 from t1 where e*d*case 17 when case t1.c-t1.f when t1.a then t1.a else 11 end then t1.c else t1.b end-e+(t1.a)-e not in (e,e,t1.a) and (t1.f not between 19 and t1.e))) and t1.b<t1.a then f-d-c+b when 17=17 then 19 else d end FROM t1 WHERE NOT (f*t1.a not between coalesce((select t1.b from t1 where 17=13),17*e) and e)}
+} {}
+do_test randexpr-2.266 {
+  db eval {SELECT coalesce((select 17+coalesce((select max(case when  -coalesce((select max((abs( -(abs(t1.a)/abs(t1.d))+11)/abs(e))-b) from t1 where t1.b not between f and t1.c and t1.f<>e),c) between t1.e and f then t1.e when  -f> - -b then c else t1.c end) from t1 where not 11 in (select f from t1 union select a from t1)),t1.d)-t1.a-13 from t1 where t1.d between  -t1.e and t1.a),f) FROM t1 WHERE exists(select 1 from t1 where not exists(select 1 from t1 where c in (select (abs(f)/abs(13)) from t1 union select t1.a+b from t1)))}
+} {}
+do_test randexpr-2.267 {
+  db eval {SELECT coalesce((select 17+coalesce((select max(case when  -coalesce((select max((abs( -(abs(t1.a)/abs(t1.d))+11)/abs(e))-b) from t1 where t1.b not between f and t1.c and t1.f<>e),c) between t1.e and f then t1.e when  -f> - -b then c else t1.c end) from t1 where not 11 in (select f from t1 union select a from t1)),t1.d)-t1.a-13 from t1 where t1.d between  -t1.e and t1.a),f) FROM t1 WHERE NOT (exists(select 1 from t1 where not exists(select 1 from t1 where c in (select (abs(f)/abs(13)) from t1 union select t1.a+b from t1))))}
+} {600}
+do_test randexpr-2.268 {
+  db eval {SELECT coalesce((select max(t1.d) from t1 where exists(select 1 from t1 where t1.d in (select case (abs(((count(distinct t1.d-c))* -cast(avg(11) AS integer)+max(t1.c)))) when (cast(avg(t1.c+a) AS integer)*+min(a)*max(c)-max(t1.a)+cast(avg(f) AS integer))+cast(avg(t1.e) AS integer) then min(11) else (((min(11)))) end from t1 union select count(*) from t1))),coalesce((select max(b+13) from t1 where exists(select 1 from t1 where f in (select 11 from t1 union select t1.b from t1))),t1.e)) FROM t1 WHERE b>11}
+} {500}
+do_test randexpr-2.269 {
+  db eval {SELECT coalesce((select max(t1.d) from t1 where exists(select 1 from t1 where t1.d in (select case (abs(((count(distinct t1.d-c))* -cast(avg(11) AS integer)+max(t1.c)))) when (cast(avg(t1.c+a) AS integer)*+min(a)*max(c)-max(t1.a)+cast(avg(f) AS integer))+cast(avg(t1.e) AS integer) then min(11) else (((min(11)))) end from t1 union select count(*) from t1))),coalesce((select max(b+13) from t1 where exists(select 1 from t1 where f in (select 11 from t1 union select t1.b from t1))),t1.e)) FROM t1 WHERE NOT (b>11)}
+} {}
+do_test randexpr-2.270 {
+  db eval {SELECT coalesce((select max( -(select count(*)-case min(19)-abs(count(*))+(max( -b)-+count(distinct (t1.e))) when max(a) then (count(distinct 19)) else count(*) end from t1)) from t1 where exists(select 1 from t1 where a<(abs(case when a-t1.c+ -19+t1.d between 11 and f then t1.f else d end+t1.a+d)/abs(c))) or t1.c>t1.c),17)*f FROM t1 WHERE not f<>t1.b}
+} {}
+do_test randexpr-2.271 {
+  db eval {SELECT coalesce((select max( -(select count(*)-case min(19)-abs(count(*))+(max( -b)-+count(distinct (t1.e))) when max(a) then (count(distinct 19)) else count(*) end from t1)) from t1 where exists(select 1 from t1 where a<(abs(case when a-t1.c+ -19+t1.d between 11 and f then t1.f else d end+t1.a+d)/abs(c))) or t1.c>t1.c),17)*f FROM t1 WHERE NOT (not f<>t1.b)}
+} {10200}
+do_test randexpr-2.272 {
+  db eval {SELECT case when coalesce((select f-coalesce((select +coalesce((select t1.c from t1 where (t1.c=(abs(t1.e)/abs(+t1.c+f+(f))))),13+17)+t1.b | t1.c from t1 where case when t1.a not in (d,17,t1.c) then f else f end |  -13 in (select cast(avg(t1.e) AS integer) from t1 union select min(t1.a) from t1)),c) from t1 where 17>c), -t1.b)>t1.c then 17 when t1.b<>11 then e else t1.f end FROM t1 WHERE case when t1.f in (t1.a+(abs(17)/abs((t1.d))),coalesce((select max(c) from t1 where (not (d- -case f when 17 then d else (17) end+e*t1.d) not in ((t1.d),t1.f,f))),coalesce((select c from t1 where 13 not in (19,d,b)),f)),17) then t1.b when e<=f then 17 else c end<d or t1.d> -19}
+} {500}
+do_test randexpr-2.273 {
+  db eval {SELECT case when coalesce((select f-coalesce((select +coalesce((select t1.c from t1 where (t1.c=(abs(t1.e)/abs(+t1.c+f+(f))))),13+17)+t1.b | t1.c from t1 where case when t1.a not in (d,17,t1.c) then f else f end |  -13 in (select cast(avg(t1.e) AS integer) from t1 union select min(t1.a) from t1)),c) from t1 where 17>c), -t1.b)>t1.c then 17 when t1.b<>11 then e else t1.f end FROM t1 WHERE NOT (case when t1.f in (t1.a+(abs(17)/abs((t1.d))),coalesce((select max(c) from t1 where (not (d- -case f when 17 then d else (17) end+e*t1.d) not in ((t1.d),t1.f,f))),coalesce((select c from t1 where 13 not in (19,d,b)),f)),17) then t1.b when e<=f then 17 else c end<d or t1.d> -19)}
+} {}
+do_test randexpr-2.274 {
+  db eval {SELECT case when coalesce((select f-coalesce((select +coalesce((select t1.c from t1 where (t1.c=(abs(t1.e)/abs(+t1.c+f+(f))))),13+17)+t1.b & t1.c from t1 where case when t1.a not in (d,17,t1.c) then f else f end &  -13 in (select cast(avg(t1.e) AS integer) from t1 union select min(t1.a) from t1)),c) from t1 where 17>c), -t1.b)>t1.c then 17 when t1.b<>11 then e else t1.f end FROM t1 WHERE case when t1.f in (t1.a+(abs(17)/abs((t1.d))),coalesce((select max(c) from t1 where (not (d- -case f when 17 then d else (17) end+e*t1.d) not in ((t1.d),t1.f,f))),coalesce((select c from t1 where 13 not in (19,d,b)),f)),17) then t1.b when e<=f then 17 else c end<d or t1.d> -19}
+} {500}
+do_test randexpr-2.275 {
+  db eval {SELECT case when d*t1.c*a<>t1.b*~t1.b*t1.f-b then e else 17 end*t1.e+case when a not between t1.a and t1.d or (select  - -cast(avg(c) AS integer) from t1)<>17+c then case 11 when t1.f then  -t1.b else t1.b end when 13 not in (c,t1.f,19) or not exists(select 1 from t1 where 13=t1.d or t1.e<>a) then (17) else  -t1.f end FROM t1 WHERE (not (case e when e then +case when e>=a and 13<>e*t1.e or t1.d<>11 then t1.c else t1.b end else 17 end) in (select cast(avg( -t1.c) AS integer) from t1 union select case min(13) when  -+count(distinct 13) then case (+(cast(avg(e) AS integer))+((cast(avg(13) AS integer)))* - -count(distinct c)*count(*)) | count(*) when min(t1.c) then (min(11)) else max(f) end else cast(avg(17) AS integer) end from t1))}
+} {250200}
+do_test randexpr-2.276 {
+  db eval {SELECT case when d*t1.c*a<>t1.b*~t1.b*t1.f-b then e else 17 end*t1.e+case when a not between t1.a and t1.d or (select  - -cast(avg(c) AS integer) from t1)<>17+c then case 11 when t1.f then  -t1.b else t1.b end when 13 not in (c,t1.f,19) or not exists(select 1 from t1 where 13=t1.d or t1.e<>a) then (17) else  -t1.f end FROM t1 WHERE NOT ((not (case e when e then +case when e>=a and 13<>e*t1.e or t1.d<>11 then t1.c else t1.b end else 17 end) in (select cast(avg( -t1.c) AS integer) from t1 union select case min(13) when  -+count(distinct 13) then case (+(cast(avg(e) AS integer))+((cast(avg(13) AS integer)))* - -count(distinct c)*count(*)) | count(*) when min(t1.c) then (min(11)) else max(f) end else cast(avg(17) AS integer) end from t1)))}
+} {}
+do_test randexpr-2.277 {
+  db eval {SELECT (select max(t1.a)*abs(count(distinct f-t1.a-(abs(t1.a)/abs(case e when case t1.f when e*(b)-19 then 11 else t1.d end then t1.f else 11 end)))) | case +~cast(avg(t1.a) AS integer)-+abs(count(distinct 17)) when case count(distinct t1.b)*cast(avg(t1.a) AS integer)+count(distinct t1.c) when count(*) then min(t1.f) else count(distinct e) end then max((t1.e)) else max(d) end-count(*) from t1) FROM t1 WHERE e not between (select min(t1.a) from t1) and d+t1.d}
+} {}
+do_test randexpr-2.278 {
+  db eval {SELECT (select max(t1.a)*abs(count(distinct f-t1.a-(abs(t1.a)/abs(case e when case t1.f when e*(b)-19 then 11 else t1.d end then t1.f else 11 end)))) | case +~cast(avg(t1.a) AS integer)-+abs(count(distinct 17)) when case count(distinct t1.b)*cast(avg(t1.a) AS integer)+count(distinct t1.c) when count(*) then min(t1.f) else count(distinct e) end then max((t1.e)) else max(d) end-count(*) from t1) FROM t1 WHERE NOT (e not between (select min(t1.a) from t1) and d+t1.d)}
+} {495}
+do_test randexpr-2.279 {
+  db eval {SELECT (select max(t1.a)*abs(count(distinct f-t1.a-(abs(t1.a)/abs(case e when case t1.f when e*(b)-19 then 11 else t1.d end then t1.f else 11 end)))) & case +~cast(avg(t1.a) AS integer)-+abs(count(distinct 17)) when case count(distinct t1.b)*cast(avg(t1.a) AS integer)+count(distinct t1.c) when count(*) then min(t1.f) else count(distinct e) end then max((t1.e)) else max(d) end-count(*) from t1) FROM t1 WHERE NOT (e not between (select min(t1.a) from t1) and d+t1.d)}
+} {4}
+do_test randexpr-2.280 {
+  db eval {SELECT e*c-t1.e*t1.c++(select abs(case abs(max(coalesce((select f from t1 where (b*coalesce((select max(b) from t1 where 17>f),t1.e) not between c and f or t1.a>d and t1.a<11 or a<> -f)),(t1.a)))) when  -+count(distinct e) then  -+(count(distinct 19))+min(t1.c) else  -min(t1.f) end) from t1)+t1.b-19 FROM t1 WHERE d-coalesce((select max(t1.d*c+c) from t1 where t1.f between (select count(distinct t1.b-e)+abs(~case case ~cast(avg(t1.f) AS integer)-count(distinct t1.a) when count(*) then count(distinct e) else count(*) end when min(e) then min( -t1.c) else max(a) end) from t1)+17 and  -case when d>=d-11 then t1.c else t1.a end),t1.a)*t1.a not in (t1.f,t1.f,d)}
+} {781}
+do_test randexpr-2.281 {
+  db eval {SELECT e*c-t1.e*t1.c++(select abs(case abs(max(coalesce((select f from t1 where (b*coalesce((select max(b) from t1 where 17>f),t1.e) not between c and f or t1.a>d and t1.a<11 or a<> -f)),(t1.a)))) when  -+count(distinct e) then  -+(count(distinct 19))+min(t1.c) else  -min(t1.f) end) from t1)+t1.b-19 FROM t1 WHERE NOT (d-coalesce((select max(t1.d*c+c) from t1 where t1.f between (select count(distinct t1.b-e)+abs(~case case ~cast(avg(t1.f) AS integer)-count(distinct t1.a) when count(*) then count(distinct e) else count(*) end when min(e) then min( -t1.c) else max(a) end) from t1)+17 and  -case when d>=d-11 then t1.c else t1.a end),t1.a)*t1.a not in (t1.f,t1.f,d))}
+} {}
+do_test randexpr-2.282 {
+  db eval {SELECT coalesce((select a from t1 where (exists(select 1 from t1 where 11-case when ((select count(distinct t1.e+d) from t1))<>t1.d*f then  -13 when t1.b in (select abs(cast(avg(c) AS integer)) from t1 union select count(distinct e)*count(distinct c)-cast(avg(e) AS integer) from t1) or c in (select t1.d from t1 union select 17 from t1) then a else t1.b end>=t1.c) and f>=d and d>=t1.f)),case when 11=19 and t1.a between t1.d and e then t1.d-b else t1.b end) FROM t1 WHERE 19 not in ( -t1.f,+19,t1.b)}
+} {}
+do_test randexpr-2.283 {
+  db eval {SELECT coalesce((select a from t1 where (exists(select 1 from t1 where 11-case when ((select count(distinct t1.e+d) from t1))<>t1.d*f then  -13 when t1.b in (select abs(cast(avg(c) AS integer)) from t1 union select count(distinct e)*count(distinct c)-cast(avg(e) AS integer) from t1) or c in (select t1.d from t1 union select 17 from t1) then a else t1.b end>=t1.c) and f>=d and d>=t1.f)),case when 11=19 and t1.a between t1.d and e then t1.d-b else t1.b end) FROM t1 WHERE NOT (19 not in ( -t1.f,+19,t1.b))}
+} {200}
+do_test randexpr-2.284 {
+  db eval {SELECT (~case when t1.f>(abs(t1.c)/abs(13-coalesce((select max(t1.a) from t1 where case when e not in (c,t1.a,~11) then 19+( -c) else a end in (select (19) from t1 union select t1.c from t1)),t1.b)+a)) and e>d and (t1.a)=e then t1.e when (not exists(select 1 from t1 where  -t1.d=e) and  -d in (select d from t1 union select e from t1)) then t1.b else a end) FROM t1 WHERE (t1.f in (select coalesce((select max(coalesce((select c from t1 where coalesce((select max(coalesce((select max(++13*t1.d) from t1 where case when case when e<>13 or b<= -t1.a then t1.c when t1.a not in ( - -13,t1.a,13) then a else c end not in ( -e,d,(11)) or t1.d<t1.a then t1.b when t1.a<> -b then t1.e else t1.d end<a),t1.d)) from t1 where e<>t1.b),c) not in (t1.e,c,b)),13)) from t1 where ((t1.f) in (select max(a) from t1 union select abs(abs(min(13))) from t1))),11) from t1 union select b from t1))}
+} {}
+do_test randexpr-2.285 {
+  db eval {SELECT (~case when t1.f>(abs(t1.c)/abs(13-coalesce((select max(t1.a) from t1 where case when e not in (c,t1.a,~11) then 19+( -c) else a end in (select (19) from t1 union select t1.c from t1)),t1.b)+a)) and e>d and (t1.a)=e then t1.e when (not exists(select 1 from t1 where  -t1.d=e) and  -d in (select d from t1 union select e from t1)) then t1.b else a end) FROM t1 WHERE NOT ((t1.f in (select coalesce((select max(coalesce((select c from t1 where coalesce((select max(coalesce((select max(++13*t1.d) from t1 where case when case when e<>13 or b<= -t1.a then t1.c when t1.a not in ( - -13,t1.a,13) then a else c end not in ( -e,d,(11)) or t1.d<t1.a then t1.b when t1.a<> -b then t1.e else t1.d end<a),t1.d)) from t1 where e<>t1.b),c) not in (t1.e,c,b)),13)) from t1 where ((t1.f) in (select max(a) from t1 union select abs(abs(min(13))) from t1))),11) from t1 union select b from t1)))}
+} {-101}
+do_test randexpr-2.286 {
+  db eval {SELECT (select count(distinct case b when 13 then (select (+(cast(avg(+(d)*case t1.f-c*(abs(case when case when not exists(select 1 from t1 where not exists(select 1 from t1 where (d<=t1.e) or d between c and t1.b)) then 11 else 19 end in ((t1.d),t1.a,t1.f) then t1.f when c<=t1.e then t1.c else b end | a)/abs(c))+t1.b when t1.c then a else d end) AS integer))) from t1) else t1.b*(e) end) from t1) FROM t1 WHERE not t1.a+t1.b | t1.f-11*(select max(+case when case ~e-(abs(d*t1.d+t1.d)/abs( -f)) when t1.a then t1.e else t1.c end in (select cast(avg((f)) AS integer) from t1 union select +~(min(t1.d)) from t1) then (t1.d) when not exists(select 1 from t1 where a not in (17,a,d)) then 19 else  -t1.a end* -t1.d) from t1)* -17>13}
+} {1}
+do_test randexpr-2.287 {
+  db eval {SELECT (select count(distinct case b when 13 then (select (+(cast(avg(+(d)*case t1.f-c*(abs(case when case when not exists(select 1 from t1 where not exists(select 1 from t1 where (d<=t1.e) or d between c and t1.b)) then 11 else 19 end in ((t1.d),t1.a,t1.f) then t1.f when c<=t1.e then t1.c else b end | a)/abs(c))+t1.b when t1.c then a else d end) AS integer))) from t1) else t1.b*(e) end) from t1) FROM t1 WHERE NOT (not t1.a+t1.b | t1.f-11*(select max(+case when case ~e-(abs(d*t1.d+t1.d)/abs( -f)) when t1.a then t1.e else t1.c end in (select cast(avg((f)) AS integer) from t1 union select +~(min(t1.d)) from t1) then (t1.d) when not exists(select 1 from t1 where a not in (17,a,d)) then 19 else  -t1.a end* -t1.d) from t1)* -17>13)}
+} {}
+do_test randexpr-2.288 {
+  db eval {SELECT (select count(distinct case b when 13 then (select (+(cast(avg(+(d)*case t1.f-c*(abs(case when case when not exists(select 1 from t1 where not exists(select 1 from t1 where (d<=t1.e) or d between c and t1.b)) then 11 else 19 end in ((t1.d),t1.a,t1.f) then t1.f when c<=t1.e then t1.c else b end & a)/abs(c))+t1.b when t1.c then a else d end) AS integer))) from t1) else t1.b*(e) end) from t1) FROM t1 WHERE not t1.a+t1.b | t1.f-11*(select max(+case when case ~e-(abs(d*t1.d+t1.d)/abs( -f)) when t1.a then t1.e else t1.c end in (select cast(avg((f)) AS integer) from t1 union select +~(min(t1.d)) from t1) then (t1.d) when not exists(select 1 from t1 where a not in (17,a,d)) then 19 else  -t1.a end* -t1.d) from t1)* -17>13}
+} {1}
+do_test randexpr-2.289 {
+  db eval {SELECT coalesce((select max(coalesce((select max(13) from t1 where ((~t1.f) between b and (abs(e)/abs(f)))),13+(select case abs((+count(*)*max(19))) when (~min(b)) then  -min(a) | min( -a) else (max(t1.c)) end from t1)+17*f+11)) from t1 where not 19<=coalesce((select e from t1 where t1.d-d not between 19 and 19),11)),13) FROM t1 WHERE t1.f+t1.d=t1.f+17-case when (abs(t1.a*(case when not exists(select 1 from t1 where not exists(select 1 from t1 where (b) between d and t1.f)) then (t1.b |  -(t1.c)) | 19 when d=t1.a then 13 else d end)+ -t1.d)/abs(d)) not in (d,e,t1.d) then t1.f when 19 in (select t1.f from t1 union select t1.e from t1) then e else  -t1.a end- - -t1.e*17-t1.d-t1.d}
+} {}
+do_test randexpr-2.290 {
+  db eval {SELECT coalesce((select max(coalesce((select max(13) from t1 where ((~t1.f) between b and (abs(e)/abs(f)))),13+(select case abs((+count(*)*max(19))) when (~min(b)) then  -min(a) | min( -a) else (max(t1.c)) end from t1)+17*f+11)) from t1 where not 19<=coalesce((select e from t1 where t1.d-d not between 19 and 19),11)),13) FROM t1 WHERE NOT (t1.f+t1.d=t1.f+17-case when (abs(t1.a*(case when not exists(select 1 from t1 where not exists(select 1 from t1 where (b) between d and t1.f)) then (t1.b |  -(t1.c)) | 19 when d=t1.a then 13 else d end)+ -t1.d)/abs(d)) not in (d,e,t1.d) then t1.f when 19 in (select t1.f from t1 union select t1.e from t1) then e else  -t1.a end- - -t1.e*17-t1.d-t1.d)}
+} {13}
+do_test randexpr-2.291 {
+  db eval {SELECT coalesce((select max(coalesce((select max(13) from t1 where ((~t1.f) between b and (abs(e)/abs(f)))),13+(select case abs((+count(*)*max(19))) when (~min(b)) then  -min(a) & min( -a) else (max(t1.c)) end from t1)+17*f+11)) from t1 where not 19<=coalesce((select e from t1 where t1.d-d not between 19 and 19),11)),13) FROM t1 WHERE NOT (t1.f+t1.d=t1.f+17-case when (abs(t1.a*(case when not exists(select 1 from t1 where not exists(select 1 from t1 where (b) between d and t1.f)) then (t1.b |  -(t1.c)) | 19 when d=t1.a then 13 else d end)+ -t1.d)/abs(d)) not in (d,e,t1.d) then t1.f when 19 in (select t1.f from t1 union select t1.e from t1) then e else  -t1.a end- - -t1.e*17-t1.d-t1.d)}
+} {13}
+do_test randexpr-2.292 {
+  db eval {SELECT case when  -t1.b=c and ((t1.c>t1.b)) and not exists(select 1 from t1 where (abs((select max(t1.d) from t1))/abs((abs(c+t1.b)/abs(t1.d))-t1.e))+c in (select cast(avg((t1.a)) AS integer) | abs(count(distinct t1.d))+count(*) | count(*)+count(*) from t1 union select (min(t1.d)) from t1)) then (abs(t1.b)/abs(t1.f)) when t1.b not in (a,t1.f,(a)) then t1.b else t1.d end-11 FROM t1 WHERE case when ~e in (coalesce((select 13 from t1 where 17 between t1.a and b or not exists(select 1 from t1 where (c in (11,e,a)))),t1.e),c,e) then e else t1.f end in (select ++abs(case case count(*) when (max(t1.d)) then cast(avg(t1.c) AS integer) else count(distinct b) end | count(*) when max(e) then min(c) else max(13) end | count(*)*count(*)) | max(t1.a) from t1 union select count(distinct t1.c) from t1) or b in (select cast(avg(t1.b) AS integer) from t1 union select cast(avg( -t1.a) AS integer) from t1)}
+} {189}
+do_test randexpr-2.293 {
+  db eval {SELECT case when  -t1.b=c and ((t1.c>t1.b)) and not exists(select 1 from t1 where (abs((select max(t1.d) from t1))/abs((abs(c+t1.b)/abs(t1.d))-t1.e))+c in (select cast(avg((t1.a)) AS integer) | abs(count(distinct t1.d))+count(*) | count(*)+count(*) from t1 union select (min(t1.d)) from t1)) then (abs(t1.b)/abs(t1.f)) when t1.b not in (a,t1.f,(a)) then t1.b else t1.d end-11 FROM t1 WHERE NOT (case when ~e in (coalesce((select 13 from t1 where 17 between t1.a and b or not exists(select 1 from t1 where (c in (11,e,a)))),t1.e),c,e) then e else t1.f end in (select ++abs(case case count(*) when (max(t1.d)) then cast(avg(t1.c) AS integer) else count(distinct b) end | count(*) when max(e) then min(c) else max(13) end | count(*)*count(*)) | max(t1.a) from t1 union select count(distinct t1.c) from t1) or b in (select cast(avg(t1.b) AS integer) from t1 union select cast(avg( -t1.a) AS integer) from t1))}
+} {}
+do_test randexpr-2.294 {
+  db eval {SELECT case when  -t1.b=c and ((t1.c>t1.b)) and not exists(select 1 from t1 where (abs((select max(t1.d) from t1))/abs((abs(c+t1.b)/abs(t1.d))-t1.e))+c in (select cast(avg((t1.a)) AS integer) & abs(count(distinct t1.d))+count(*) & count(*)+count(*) from t1 union select (min(t1.d)) from t1)) then (abs(t1.b)/abs(t1.f)) when t1.b not in (a,t1.f,(a)) then t1.b else t1.d end-11 FROM t1 WHERE case when ~e in (coalesce((select 13 from t1 where 17 between t1.a and b or not exists(select 1 from t1 where (c in (11,e,a)))),t1.e),c,e) then e else t1.f end in (select ++abs(case case count(*) when (max(t1.d)) then cast(avg(t1.c) AS integer) else count(distinct b) end | count(*) when max(e) then min(c) else max(13) end | count(*)*count(*)) | max(t1.a) from t1 union select count(distinct t1.c) from t1) or b in (select cast(avg(t1.b) AS integer) from t1 union select cast(avg( -t1.a) AS integer) from t1)}
+} {189}
+do_test randexpr-2.295 {
+  db eval {SELECT case when (((abs(11 | e)/abs(17-d))+t1.b | a<>11)) and t1.d in (13,t1.c,11) or 17 between t1.f and b or not f in (select 19 from t1 union select t1.e from t1) and b<>19 or e between 19 and t1.d or b<=d or d<17 or t1.a<>t1.f then 17 when t1.e=t1.b then 11 else coalesce((select t1.e from t1 where (b) between  - -d and e),t1.b) end FROM t1 WHERE t1.a between d and +17-17*coalesce((select ~ -19-13-19 from t1 where 19>(select abs(count(distinct t1.d-17))+count(distinct case when 19>17 then t1.f else t1.e end+b) | max(t1.b)+count(distinct 13) from t1)-coalesce((select 13 from t1 where t1.e not in (19,17,e) and 11<=t1.d),c)),t1.f)}
+} {}
+do_test randexpr-2.296 {
+  db eval {SELECT case when (((abs(11 | e)/abs(17-d))+t1.b | a<>11)) and t1.d in (13,t1.c,11) or 17 between t1.f and b or not f in (select 19 from t1 union select t1.e from t1) and b<>19 or e between 19 and t1.d or b<=d or d<17 or t1.a<>t1.f then 17 when t1.e=t1.b then 11 else coalesce((select t1.e from t1 where (b) between  - -d and e),t1.b) end FROM t1 WHERE NOT (t1.a between d and +17-17*coalesce((select ~ -19-13-19 from t1 where 19>(select abs(count(distinct t1.d-17))+count(distinct case when 19>17 then t1.f else t1.e end+b) | max(t1.b)+count(distinct 13) from t1)-coalesce((select 13 from t1 where t1.e not in (19,17,e) and 11<=t1.d),c)),t1.f))}
+} {17}
+do_test randexpr-2.297 {
+  db eval {SELECT case when (((abs(11 & e)/abs(17-d))+t1.b & a<>11)) and t1.d in (13,t1.c,11) or 17 between t1.f and b or not f in (select 19 from t1 union select t1.e from t1) and b<>19 or e between 19 and t1.d or b<=d or d<17 or t1.a<>t1.f then 17 when t1.e=t1.b then 11 else coalesce((select t1.e from t1 where (b) between  - -d and e),t1.b) end FROM t1 WHERE NOT (t1.a between d and +17-17*coalesce((select ~ -19-13-19 from t1 where 19>(select abs(count(distinct t1.d-17))+count(distinct case when 19>17 then t1.f else t1.e end+b) | max(t1.b)+count(distinct 13) from t1)-coalesce((select 13 from t1 where t1.e not in (19,17,e) and 11<=t1.d),c)),t1.f))}
+} {17}
+do_test randexpr-2.298 {
+  db eval {SELECT case when 19=13 or 13+a | 19*11+b<>b and ((19<=b+(select count(*) from t1))) then t1.d when t1.e<= -19 then d-t1.e+(select ~max(19)*+(count(distinct b)) from t1)+t1.d*t1.d+f else t1.c end FROM t1 WHERE (13*case when 19*case when 19 not between 17 and t1.e then t1.e when ((case when case case when e<>11 or t1.b not in (t1.a, -c,17) then b else a end when  -e then b else a end*a in (select 19 from t1 union select 13 from t1) then e else t1.c end in (select  -abs(+count(*)) from t1 union select count(distinct f) from t1))) then 19 else d end>=f then t1.a when t1.e>=b then a else c end>=t1.d)}
+} {400}
+do_test randexpr-2.299 {
+  db eval {SELECT case when 19=13 or 13+a | 19*11+b<>b and ((19<=b+(select count(*) from t1))) then t1.d when t1.e<= -19 then d-t1.e+(select ~max(19)*+(count(distinct b)) from t1)+t1.d*t1.d+f else t1.c end FROM t1 WHERE NOT ((13*case when 19*case when 19 not between 17 and t1.e then t1.e when ((case when case case when e<>11 or t1.b not in (t1.a, -c,17) then b else a end when  -e then b else a end*a in (select 19 from t1 union select 13 from t1) then e else t1.c end in (select  -abs(+count(*)) from t1 union select count(distinct f) from t1))) then 19 else d end>=f then t1.a when t1.e>=b then a else c end>=t1.d))}
+} {}
+do_test randexpr-2.300 {
+  db eval {SELECT case when 19=13 or 13+a & 19*11+b<>b and ((19<=b+(select count(*) from t1))) then t1.d when t1.e<= -19 then d-t1.e+(select ~max(19)*+(count(distinct b)) from t1)+t1.d*t1.d+f else t1.c end FROM t1 WHERE (13*case when 19*case when 19 not between 17 and t1.e then t1.e when ((case when case case when e<>11 or t1.b not in (t1.a, -c,17) then b else a end when  -e then b else a end*a in (select 19 from t1 union select 13 from t1) then e else t1.c end in (select  -abs(+count(*)) from t1 union select count(distinct f) from t1))) then 19 else d end>=f then t1.a when t1.e>=b then a else c end>=t1.d)}
+} {400}
+do_test randexpr-2.301 {
+  db eval {SELECT +coalesce((select t1.d from t1 where coalesce((select t1.c+t1.b-case (19) when t1.c then 13+13+17 else t1.e end from t1 where (not exists(select 1 from t1 where t1.f<13)) and d not in (t1.e,11,19) and not 19>=t1.f or e in (select min(t1.c) from t1 union select cast(avg(t1.c) AS integer) from t1)), -a)-b*(13)<t1.b),(t1.c)) | t1.e FROM t1 WHERE not (11>(+b))}
+} {500}
+do_test randexpr-2.302 {
+  db eval {SELECT +coalesce((select t1.d from t1 where coalesce((select t1.c+t1.b-case (19) when t1.c then 13+13+17 else t1.e end from t1 where (not exists(select 1 from t1 where t1.f<13)) and d not in (t1.e,11,19) and not 19>=t1.f or e in (select min(t1.c) from t1 union select cast(avg(t1.c) AS integer) from t1)), -a)-b*(13)<t1.b),(t1.c)) | t1.e FROM t1 WHERE NOT (not (11>(+b)))}
+} {}
+do_test randexpr-2.303 {
+  db eval {SELECT +coalesce((select t1.d from t1 where coalesce((select t1.c+t1.b-case (19) when t1.c then 13+13+17 else t1.e end from t1 where (not exists(select 1 from t1 where t1.f<13)) and d not in (t1.e,11,19) and not 19>=t1.f or e in (select min(t1.c) from t1 union select cast(avg(t1.c) AS integer) from t1)), -a)-b*(13)<t1.b),(t1.c)) & t1.e FROM t1 WHERE not (11>(+b))}
+} {400}
+do_test randexpr-2.304 {
+  db eval {SELECT case when (((t1.c)<=a-11*t1.e)) then t1.b else a end | ((abs(b*(abs(t1.e | +c)/abs(11)))/abs(t1.a))) FROM t1 WHERE case when t1.e in (select t1.a-e from t1 union select t1.e from t1) then 19*coalesce((select a*t1.c-19+f+t1.d-case case when 11>=d then f when not f<>17 then t1.d else t1.f end+t1.e-t1.c when d then b else t1.f end from t1 where t1.f>a), -t1.a)- -(t1.c)-t1.e+b else 11 end<t1.f}
+} {}
+do_test randexpr-2.305 {
+  db eval {SELECT case when (((t1.c)<=a-11*t1.e)) then t1.b else a end | ((abs(b*(abs(t1.e | +c)/abs(11)))/abs(t1.a))) FROM t1 WHERE NOT (case when t1.e in (select t1.a-e from t1 union select t1.e from t1) then 19*coalesce((select a*t1.c-19+f+t1.d-case case when 11>=d then f when not f<>17 then t1.d else t1.f end+t1.e-t1.c when d then b else t1.f end from t1 where t1.f>a), -t1.a)- -(t1.c)-t1.e+b else 11 end<t1.f)}
+} {124}
+do_test randexpr-2.306 {
+  db eval {SELECT case when (((t1.c)<=a-11*t1.e)) then t1.b else a end & ((abs(b*(abs(t1.e & +c)/abs(11)))/abs(t1.a))) FROM t1 WHERE NOT (case when t1.e in (select t1.a-e from t1 union select t1.e from t1) then 19*coalesce((select a*t1.c-19+f+t1.d-case case when 11>=d then f when not f<>17 then t1.d else t1.f end+t1.e-t1.c when d then b else t1.f end from t1 where t1.f>a), -t1.a)- -(t1.c)-t1.e+b else 11 end<t1.f)}
+} {36}
+do_test randexpr-2.307 {
+  db eval {SELECT 17*case when case t1.e when 13-c+f then d else (select + -case cast(avg(b) AS integer)*count(*) when (count(distinct 17)+case abs((count(distinct t1.e))) when count(*) then count(*) else count(distinct c) end) | count(*) then  -count(distinct b) else  - -min(e) end*min(f)-min(t1.e) from t1) end-(select (count(*)) from t1) in (select 19 from t1 union select t1.a-(select count(distinct t1.c) from t1) from t1) then a-13 else t1.d end FROM t1 WHERE not exists(select 1 from t1 where (case  -17 when c then (abs(t1.d)/abs(c-(abs(case when t1.e in (17,t1.a,(abs(e)/abs(t1.d))) then +d-17*t1.b when (select +cast(avg(t1.a*t1.e+e-19) AS integer) from t1) in (select (abs(b)/abs(f)) from t1 union select (19) from t1) then b else t1.f end)/abs(e))*e))+(c) else  -t1.c end<=(11)))}
+} {}
+do_test randexpr-2.308 {
+  db eval {SELECT 17*case when case t1.e when 13-c+f then d else (select + -case cast(avg(b) AS integer)*count(*) when (count(distinct 17)+case abs((count(distinct t1.e))) when count(*) then count(*) else count(distinct c) end) | count(*) then  -count(distinct b) else  - -min(e) end*min(f)-min(t1.e) from t1) end-(select (count(*)) from t1) in (select 19 from t1 union select t1.a-(select count(distinct t1.c) from t1) from t1) then a-13 else t1.d end FROM t1 WHERE NOT (not exists(select 1 from t1 where (case  -17 when c then (abs(t1.d)/abs(c-(abs(case when t1.e in (17,t1.a,(abs(e)/abs(t1.d))) then +d-17*t1.b when (select +cast(avg(t1.a*t1.e+e-19) AS integer) from t1) in (select (abs(b)/abs(f)) from t1 union select (19) from t1) then b else t1.f end)/abs(e))*e))+(c) else  -t1.c end<=(11))))}
+} {6800}
+do_test randexpr-2.309 {
+  db eval {SELECT 17*case when case t1.e when 13-c+f then d else (select + -case cast(avg(b) AS integer)*count(*) when (count(distinct 17)+case abs((count(distinct t1.e))) when count(*) then count(*) else count(distinct c) end) & count(*) then  -count(distinct b) else  - -min(e) end*min(f)-min(t1.e) from t1) end-(select (count(*)) from t1) in (select 19 from t1 union select t1.a-(select count(distinct t1.c) from t1) from t1) then a-13 else t1.d end FROM t1 WHERE NOT (not exists(select 1 from t1 where (case  -17 when c then (abs(t1.d)/abs(c-(abs(case when t1.e in (17,t1.a,(abs(e)/abs(t1.d))) then +d-17*t1.b when (select +cast(avg(t1.a*t1.e+e-19) AS integer) from t1) in (select (abs(b)/abs(f)) from t1 union select (19) from t1) then b else t1.f end)/abs(e))*e))+(c) else  -t1.c end<=(11))))}
+} {6800}
+do_test randexpr-2.310 {
+  db eval {SELECT t1.f+coalesce((select t1.b-13-(coalesce((select 17 from t1 where b>a),13)*11)-t1.c from t1 where 11 between t1.a and  -13+t1.f*~coalesce((select max(b-f) from t1 where t1.a<=13 or a not in (13,f,17)),b) or (t1.d<19 or b> -t1.c)),b) FROM t1 WHERE 11 not between d and coalesce((select  -(select (cast(avg(d) AS integer)) from t1) from t1 where case when 17<t1.a then t1.b else coalesce((select max(f) from t1 where t1.d-+case when (d<=t1.f) and t1.e not in (17,t1.d,t1.a) and 11 in (13,t1.e, -t1.a) and t1.c<13 then  -b else case when a>13 then e when 19 between t1.a and t1.b then b else b end end*13<=c),t1.c) end in (select t1.e from t1 union select d from t1)),t1.b)}
+} {300}
+do_test randexpr-2.311 {
+  db eval {SELECT t1.f+coalesce((select t1.b-13-(coalesce((select 17 from t1 where b>a),13)*11)-t1.c from t1 where 11 between t1.a and  -13+t1.f*~coalesce((select max(b-f) from t1 where t1.a<=13 or a not in (13,f,17)),b) or (t1.d<19 or b> -t1.c)),b) FROM t1 WHERE NOT (11 not between d and coalesce((select  -(select (cast(avg(d) AS integer)) from t1) from t1 where case when 17<t1.a then t1.b else coalesce((select max(f) from t1 where t1.d-+case when (d<=t1.f) and t1.e not in (17,t1.d,t1.a) and 11 in (13,t1.e, -t1.a) and t1.c<13 then  -b else case when a>13 then e when 19 between t1.a and t1.b then b else b end end*13<=c),t1.c) end in (select t1.e from t1 union select d from t1)),t1.b))}
+} {}
+do_test randexpr-2.312 {
+  db eval {SELECT (abs(13)/abs((select min(case when case when exists(select 1 from t1 where not exists(select 1 from t1 where (select count(distinct (t1.e)) from t1)+t1.f>t1.e) and t1.a>=13 or f in (select t1.e from t1 union select t1.e from t1)) then b when f not in (13,13,13) then coalesce((select max(d*f) from t1 where t1.e in (t1.d,t1.e,(e))),t1.e) else a end>=t1.f then b when t1.c in (e,f,t1.e) then b else t1.c end)*abs(count(*))-abs(~count(*)-min(e))-cast(avg(17) AS integer) from t1))) FROM t1 WHERE t1.b not in (a*17-17-case when  -17-t1.f in (select coalesce((select t1.a from t1 where (d)=t1.a),d) from t1 union select 19 from t1) or 13 not between 17 and 13 and (19 between (t1.e) and t1.f) or ( -t1.e)>=17 then b when t1.d not in (19,f,t1.f) then a else case when t1.a=t1.d then e when 17 in (t1.e,t1.b,t1.d) then t1.a else a end end,e,11)}
+} {0}
+do_test randexpr-2.313 {
+  db eval {SELECT (abs(13)/abs((select min(case when case when exists(select 1 from t1 where not exists(select 1 from t1 where (select count(distinct (t1.e)) from t1)+t1.f>t1.e) and t1.a>=13 or f in (select t1.e from t1 union select t1.e from t1)) then b when f not in (13,13,13) then coalesce((select max(d*f) from t1 where t1.e in (t1.d,t1.e,(e))),t1.e) else a end>=t1.f then b when t1.c in (e,f,t1.e) then b else t1.c end)*abs(count(*))-abs(~count(*)-min(e))-cast(avg(17) AS integer) from t1))) FROM t1 WHERE NOT (t1.b not in (a*17-17-case when  -17-t1.f in (select coalesce((select t1.a from t1 where (d)=t1.a),d) from t1 union select 19 from t1) or 13 not between 17 and 13 and (19 between (t1.e) and t1.f) or ( -t1.e)>=17 then b when t1.d not in (19,f,t1.f) then a else case when t1.a=t1.d then e when 17 in (t1.e,t1.b,t1.d) then t1.a else a end end,e,11))}
+} {}
+do_test randexpr-2.314 {
+  db eval {SELECT (abs(case coalesce((select t1.d* -case when d in (select cast(avg(13) AS integer)*abs(((cast(avg(d) AS integer)))+ -count(distinct c))-max(t1.c) from t1 union select min(e) from t1) then (abs(19)/abs(case when b not in (19,d,13) or t1.b not in (b,17,17) then e else b end)) else 19 end from t1 where a>=t1.c and 17 not in (t1.c,17,t1.f)),13)*t1.f when e then (11) else 17 end+19 | b)/abs(f))-t1.e FROM t1 WHERE not exists(select 1 from t1 where case a when coalesce((select max(case 19 when 17 then b-d else t1.e end) from t1 where ( -coalesce((select max(t1.a) from t1 where e between t1.b and (abs(e)/abs(17))),(abs(case when case when 13 between e and (t1.b) and 11 not in (t1.f,t1.e,c) then (t1.d) else  -c end< -e then 11 when 13>t1.b then 11 else t1.a end*13)/abs((f)))-t1.a) not in (e,(b),t1.c))),19) then t1.b else 13 end not between t1.b and 11)}
+} {}
+do_test randexpr-2.315 {
+  db eval {SELECT (abs(case coalesce((select t1.d* -case when d in (select cast(avg(13) AS integer)*abs(((cast(avg(d) AS integer)))+ -count(distinct c))-max(t1.c) from t1 union select min(e) from t1) then (abs(19)/abs(case when b not in (19,d,13) or t1.b not in (b,17,17) then e else b end)) else 19 end from t1 where a>=t1.c and 17 not in (t1.c,17,t1.f)),13)*t1.f when e then (11) else 17 end+19 | b)/abs(f))-t1.e FROM t1 WHERE NOT (not exists(select 1 from t1 where case a when coalesce((select max(case 19 when 17 then b-d else t1.e end) from t1 where ( -coalesce((select max(t1.a) from t1 where e between t1.b and (abs(e)/abs(17))),(abs(case when case when 13 between e and (t1.b) and 11 not in (t1.f,t1.e,c) then (t1.d) else  -c end< -e then 11 when 13>t1.b then 11 else t1.a end*13)/abs((f)))-t1.a) not in (e,(b),t1.c))),19) then t1.b else 13 end not between t1.b and 11))}
+} {-500}
+do_test randexpr-2.316 {
+  db eval {SELECT (abs(case coalesce((select t1.d* -case when d in (select cast(avg(13) AS integer)*abs(((cast(avg(d) AS integer)))+ -count(distinct c))-max(t1.c) from t1 union select min(e) from t1) then (abs(19)/abs(case when b not in (19,d,13) or t1.b not in (b,17,17) then e else b end)) else 19 end from t1 where a>=t1.c and 17 not in (t1.c,17,t1.f)),13)*t1.f when e then (11) else 17 end+19 & b)/abs(f))-t1.e FROM t1 WHERE NOT (not exists(select 1 from t1 where case a when coalesce((select max(case 19 when 17 then b-d else t1.e end) from t1 where ( -coalesce((select max(t1.a) from t1 where e between t1.b and (abs(e)/abs(17))),(abs(case when case when 13 between e and (t1.b) and 11 not in (t1.f,t1.e,c) then (t1.d) else  -c end< -e then 11 when 13>t1.b then 11 else t1.a end*13)/abs((f)))-t1.a) not in (e,(b),t1.c))),19) then t1.b else 13 end not between t1.b and 11))}
+} {-500}
+do_test randexpr-2.317 {
+  db eval {SELECT  -(+case when ~t1.d-f-case coalesce((select max((select (min((abs(t1.f)/abs(t1.b))-17)) from t1)) from t1 where e<=17),f) when t1.f then (select case  -( -count(distinct b)) when cast(avg( -13) AS integer) then cast(avg(13) AS integer) else max(19) end from t1)-t1.e else 13 end*b between t1.c and t1.d then t1.d when e<t1.f then  -t1.b else 19 end | d*e) FROM t1 WHERE ~t1.d*~( -coalesce((select max(t1.d | t1.a) from t1 where d-(select  -( - -count(distinct 13)) | min((t1.f))+min(t1.c) from t1) not between case t1.a when t1.b then e else  -c end and c or t1.a not in (a,19,c)),d)) in (select +(max(t1.b))*max((13))++(count(distinct t1.a))+count(*)-count(distinct f) | cast(avg(t1.d) AS integer) from t1 union select cast(avg(13) AS integer) from t1)}
+} {}
+do_test randexpr-2.318 {
+  db eval {SELECT  -(+case when ~t1.d-f-case coalesce((select max((select (min((abs(t1.f)/abs(t1.b))-17)) from t1)) from t1 where e<=17),f) when t1.f then (select case  -( -count(distinct b)) when cast(avg( -13) AS integer) then cast(avg(13) AS integer) else max(19) end from t1)-t1.e else 13 end*b between t1.c and t1.d then t1.d when e<t1.f then  -t1.b else 19 end | d*e) FROM t1 WHERE NOT (~t1.d*~( -coalesce((select max(t1.d | t1.a) from t1 where d-(select  -( - -count(distinct 13)) | min((t1.f))+min(t1.c) from t1) not between case t1.a when t1.b then e else  -c end and c or t1.a not in (a,19,c)),d)) in (select +(max(t1.b))*max((13))++(count(distinct t1.a))+count(*)-count(distinct f) | cast(avg(t1.d) AS integer) from t1 union select cast(avg(13) AS integer) from t1))}
+} {136}
+do_test randexpr-2.319 {
+  db eval {SELECT  -(+case when ~t1.d-f-case coalesce((select max((select (min((abs(t1.f)/abs(t1.b))-17)) from t1)) from t1 where e<=17),f) when t1.f then (select case  -( -count(distinct b)) when cast(avg( -13) AS integer) then cast(avg(13) AS integer) else max(19) end from t1)-t1.e else 13 end*b between t1.c and t1.d then t1.d when e<t1.f then  -t1.b else 19 end & d*e) FROM t1 WHERE NOT (~t1.d*~( -coalesce((select max(t1.d | t1.a) from t1 where d-(select  -( - -count(distinct 13)) | min((t1.f))+min(t1.c) from t1) not between case t1.a when t1.b then e else  -c end and c or t1.a not in (a,19,c)),d)) in (select +(max(t1.b))*max((13))++(count(distinct t1.a))+count(*)-count(distinct f) | cast(avg(t1.d) AS integer) from t1 union select cast(avg(13) AS integer) from t1))}
+} {-199936}
+do_test randexpr-2.320 {
+  db eval {SELECT ~d-coalesce((select +e from t1 where b not between b and ~d++ -t1.b),f)-f-+19-t1.a+case when d<=(abs(19)/abs(+coalesce((select 11 from t1 where not exists(select 1 from t1 where not coalesce((select t1.d from t1 where not t1.a<=t1.c),11) in (select 19 from t1 union select t1.a from t1) or t1.c<=t1.c and a<t1.b)),17-t1.e))) then f else t1.a end*c FROM t1 WHERE (select count(*) from t1)*e-17 | f not between 11 and t1.d or t1.c* -b in (select (abs(case when not 19<( -(t1.e-c*t1.b)+(d)-c) then t1.f-t1.b when t1.f<=11 or exists(select 1 from t1 where t1.e in (13,t1.f,t1.d)) then t1.f else 19 end)/abs(e)) from t1 union select 17 from t1)}
+} {28380}
+do_test randexpr-2.321 {
+  db eval {SELECT ~d-coalesce((select +e from t1 where b not between b and ~d++ -t1.b),f)-f-+19-t1.a+case when d<=(abs(19)/abs(+coalesce((select 11 from t1 where not exists(select 1 from t1 where not coalesce((select t1.d from t1 where not t1.a<=t1.c),11) in (select 19 from t1 union select t1.a from t1) or t1.c<=t1.c and a<t1.b)),17-t1.e))) then f else t1.a end*c FROM t1 WHERE NOT ((select count(*) from t1)*e-17 | f not between 11 and t1.d or t1.c* -b in (select (abs(case when not 19<( -(t1.e-c*t1.b)+(d)-c) then t1.f-t1.b when t1.f<=11 or exists(select 1 from t1 where t1.e in (13,t1.f,t1.d)) then t1.f else 19 end)/abs(e)) from t1 union select 17 from t1))}
+} {}
+do_test randexpr-2.322 {
+  db eval {SELECT coalesce((select 17 from t1 where not exists(select 1 from t1 where 11 in (select count(distinct d-coalesce((select t1.c-t1.f from t1 where 13 in (19,e,t1.b) and e in (select ( -count(*)) from t1 union select max(e) from t1) or t1.a>t1.f),d)*t1.e)+max(t1.f)+cast(avg(e) AS integer) | (abs((count(distinct 17)))) from t1 union select max(t1.b) from t1) or 17 in (select  -t1.b from t1 union select t1.a from t1) and exists(select 1 from t1 where t1.e=t1.c))),f+(t1.e)) FROM t1 WHERE exists(select 1 from t1 where +t1.d between (abs((abs(t1.c)/abs(case when not exists(select 1 from t1 where d*~(select abs(min(13))-( -(max(t1.f))*( -(count(distinct a)))-max(17)*min(t1.a) | (cast(avg(t1.b) AS integer))) from t1)>case when a in (select max(c) from t1 union select count(distinct  -t1.a) from t1) or +17 in (select  -count(distinct t1.f) from t1 union select cast(avg(t1.f) AS integer) from t1) then c else t1.a end) then  -t1.f else t1.f end)))/abs(c+a)) and d)}
+} {17}
+do_test randexpr-2.323 {
+  db eval {SELECT coalesce((select 17 from t1 where not exists(select 1 from t1 where 11 in (select count(distinct d-coalesce((select t1.c-t1.f from t1 where 13 in (19,e,t1.b) and e in (select ( -count(*)) from t1 union select max(e) from t1) or t1.a>t1.f),d)*t1.e)+max(t1.f)+cast(avg(e) AS integer) | (abs((count(distinct 17)))) from t1 union select max(t1.b) from t1) or 17 in (select  -t1.b from t1 union select t1.a from t1) and exists(select 1 from t1 where t1.e=t1.c))),f+(t1.e)) FROM t1 WHERE NOT (exists(select 1 from t1 where +t1.d between (abs((abs(t1.c)/abs(case when not exists(select 1 from t1 where d*~(select abs(min(13))-( -(max(t1.f))*( -(count(distinct a)))-max(17)*min(t1.a) | (cast(avg(t1.b) AS integer))) from t1)>case when a in (select max(c) from t1 union select count(distinct  -t1.a) from t1) or +17 in (select  -count(distinct t1.f) from t1 union select cast(avg(t1.f) AS integer) from t1) then c else t1.a end) then  -t1.f else t1.f end)))/abs(c+a)) and d))}
+} {}
+do_test randexpr-2.324 {
+  db eval {SELECT coalesce((select 17 from t1 where not exists(select 1 from t1 where 11 in (select count(distinct d-coalesce((select t1.c-t1.f from t1 where 13 in (19,e,t1.b) and e in (select ( -count(*)) from t1 union select max(e) from t1) or t1.a>t1.f),d)*t1.e)+max(t1.f)+cast(avg(e) AS integer) & (abs((count(distinct 17)))) from t1 union select max(t1.b) from t1) or 17 in (select  -t1.b from t1 union select t1.a from t1) and exists(select 1 from t1 where t1.e=t1.c))),f+(t1.e)) FROM t1 WHERE exists(select 1 from t1 where +t1.d between (abs((abs(t1.c)/abs(case when not exists(select 1 from t1 where d*~(select abs(min(13))-( -(max(t1.f))*( -(count(distinct a)))-max(17)*min(t1.a) | (cast(avg(t1.b) AS integer))) from t1)>case when a in (select max(c) from t1 union select count(distinct  -t1.a) from t1) or +17 in (select  -count(distinct t1.f) from t1 union select cast(avg(t1.f) AS integer) from t1) then c else t1.a end) then  -t1.f else t1.f end)))/abs(c+a)) and d)}
+} {17}
+do_test randexpr-2.325 {
+  db eval {SELECT t1.d*17- -case when case (b) when t1.c then (abs(t1.f)/abs((select + -~abs(min(f) | +cast(avg(++t1.e+t1.d) AS integer) | ((count(distinct t1.a)-count(*)))) from t1))) else c*case t1.b when t1.d then (t1.c) else t1.c end*(b)-c end=t1.d then t1.c when  -17=c then t1.e else t1.c end FROM t1 WHERE t1.b in (f,b,a)}
+} {7100}
+do_test randexpr-2.326 {
+  db eval {SELECT t1.d*17- -case when case (b) when t1.c then (abs(t1.f)/abs((select + -~abs(min(f) | +cast(avg(++t1.e+t1.d) AS integer) | ((count(distinct t1.a)-count(*)))) from t1))) else c*case t1.b when t1.d then (t1.c) else t1.c end*(b)-c end=t1.d then t1.c when  -17=c then t1.e else t1.c end FROM t1 WHERE NOT (t1.b in (f,b,a))}
+} {}
+do_test randexpr-2.327 {
+  db eval {SELECT t1.d*17- -case when case (b) when t1.c then (abs(t1.f)/abs((select + -~abs(min(f) & +cast(avg(++t1.e+t1.d) AS integer) & ((count(distinct t1.a)-count(*)))) from t1))) else c*case t1.b when t1.d then (t1.c) else t1.c end*(b)-c end=t1.d then t1.c when  -17=c then t1.e else t1.c end FROM t1 WHERE t1.b in (f,b,a)}
+} {7100}
+do_test randexpr-2.328 {
+  db eval {SELECT coalesce((select e-t1.d-+b*coalesce((select 11 from t1 where (t1.a<=coalesce((select  - -coalesce((select max(case case 19 when t1.d then t1.e else t1.a end when b then 13 else t1.e end) from t1 where (c)>=(b)),t1.c)+t1.b from t1 where t1.e>e and exists(select 1 from t1 where b in (t1.b,e,t1.c) or e not between a and d) and 13<b),a))),t1.e) from t1 where t1.a<t1.a),t1.e) FROM t1 WHERE exists(select 1 from t1 where coalesce((select max(coalesce((select case case coalesce((select d from t1 where b in (17,t1.a,13)),11) when (coalesce((select 11 from t1 where a++t1.d>(coalesce((select (f)+t1.c from t1 where a>t1.c),b))),t1.e)) then 19 else e end when t1.d then t1.e else b end from t1 where t1.b>=f),13)-b*17) from t1 where 11<>e),t1.b)<(c))}
+} {500}
+do_test randexpr-2.329 {
+  db eval {SELECT coalesce((select e-t1.d-+b*coalesce((select 11 from t1 where (t1.a<=coalesce((select  - -coalesce((select max(case case 19 when t1.d then t1.e else t1.a end when b then 13 else t1.e end) from t1 where (c)>=(b)),t1.c)+t1.b from t1 where t1.e>e and exists(select 1 from t1 where b in (t1.b,e,t1.c) or e not between a and d) and 13<b),a))),t1.e) from t1 where t1.a<t1.a),t1.e) FROM t1 WHERE NOT (exists(select 1 from t1 where coalesce((select max(coalesce((select case case coalesce((select d from t1 where b in (17,t1.a,13)),11) when (coalesce((select 11 from t1 where a++t1.d>(coalesce((select (f)+t1.c from t1 where a>t1.c),b))),t1.e)) then 19 else e end when t1.d then t1.e else b end from t1 where t1.b>=f),13)-b*17) from t1 where 11<>e),t1.b)<(c)))}
+} {}
+do_test randexpr-2.330 {
+  db eval {SELECT (abs(case when ++e not in (~c-(19)*+case t1.c when t1.d-coalesce((select max(t1.f) from t1 where (select count(*) from t1)>case when exists(select 1 from t1 where not exists(select 1 from t1 where (not not exists(select 1 from t1 where 19<t1.c)))) then ~t1.d else case coalesce((select 17 from t1 where  -t1.b<>e),t1.e) when 13 then b else t1.c end end+f),c)*t1.c then t1.e else t1.b end,11,b) then  -(t1.b) else a end)/abs(13)) FROM t1 WHERE a*t1.a<=17 and exists(select 1 from t1 where (+case coalesce((select max(f) from t1 where d in (select ((+count(*)-( -max(b))))*min(t1.c)* -max(11) from t1 union select count(distinct (19)) from t1)),t1.c) when 13 then 19 else coalesce((select t1.a from t1 where t1.c not in (t1.c,f,13)),b) end)>t1.c) and ( -( -19) between 13 and b or b in (select 11 from t1 union select a from t1) and 19 in (t1.d,t1.d,19))}
+} {}
+do_test randexpr-2.331 {
+  db eval {SELECT (abs(case when ++e not in (~c-(19)*+case t1.c when t1.d-coalesce((select max(t1.f) from t1 where (select count(*) from t1)>case when exists(select 1 from t1 where not exists(select 1 from t1 where (not not exists(select 1 from t1 where 19<t1.c)))) then ~t1.d else case coalesce((select 17 from t1 where  -t1.b<>e),t1.e) when 13 then b else t1.c end end+f),c)*t1.c then t1.e else t1.b end,11,b) then  -(t1.b) else a end)/abs(13)) FROM t1 WHERE NOT (a*t1.a<=17 and exists(select 1 from t1 where (+case coalesce((select max(f) from t1 where d in (select ((+count(*)-( -max(b))))*min(t1.c)* -max(11) from t1 union select count(distinct (19)) from t1)),t1.c) when 13 then 19 else coalesce((select t1.a from t1 where t1.c not in (t1.c,f,13)),b) end)>t1.c) and ( -( -19) between 13 and b or b in (select 11 from t1 union select a from t1) and 19 in (t1.d,t1.d,19)))}
+} {15}
+do_test randexpr-2.332 {
+  db eval {SELECT case when a>=f then  -t1.a-11*t1.c when ((t1.e-t1.e+17 between (select max(c) from t1)-13 and coalesce((select t1.d from t1 where ((coalesce((select max(case when (not b>17) then t1.b-b when  -e in (c,a,13) then 11 else t1.a end) from t1 where 19<=11),t1.e)>=e))),t1.a))) then c else t1.b end | 17 FROM t1 WHERE 11-t1.d+d-13+(t1.f*case when exists(select 1 from t1 where ( -coalesce((select max(t1.d) from t1 where (exists(select 1 from t1 where 19 in (select d from t1 union select t1.f from t1)))),t1.d)<=case when 13*11+11 in (select abs(+~abs( -min(c))) from t1 union select (min(t1.e)) from t1) then t1.f else 19 end)) then t1.c else (abs(e)/abs(19)) end*t1.f*f)<(t1.d)}
+} {}
+do_test randexpr-2.333 {
+  db eval {SELECT case when a>=f then  -t1.a-11*t1.c when ((t1.e-t1.e+17 between (select max(c) from t1)-13 and coalesce((select t1.d from t1 where ((coalesce((select max(case when (not b>17) then t1.b-b when  -e in (c,a,13) then 11 else t1.a end) from t1 where 19<=11),t1.e)>=e))),t1.a))) then c else t1.b end | 17 FROM t1 WHERE NOT (11-t1.d+d-13+(t1.f*case when exists(select 1 from t1 where ( -coalesce((select max(t1.d) from t1 where (exists(select 1 from t1 where 19 in (select d from t1 union select t1.f from t1)))),t1.d)<=case when 13*11+11 in (select abs(+~abs( -min(c))) from t1 union select (min(t1.e)) from t1) then t1.f else 19 end)) then t1.c else (abs(e)/abs(19)) end*t1.f*f)<(t1.d))}
+} {217}
+do_test randexpr-2.334 {
+  db eval {SELECT case when a>=f then  -t1.a-11*t1.c when ((t1.e-t1.e+17 between (select max(c) from t1)-13 and coalesce((select t1.d from t1 where ((coalesce((select max(case when (not b>17) then t1.b-b when  -e in (c,a,13) then 11 else t1.a end) from t1 where 19<=11),t1.e)>=e))),t1.a))) then c else t1.b end & 17 FROM t1 WHERE NOT (11-t1.d+d-13+(t1.f*case when exists(select 1 from t1 where ( -coalesce((select max(t1.d) from t1 where (exists(select 1 from t1 where 19 in (select d from t1 union select t1.f from t1)))),t1.d)<=case when 13*11+11 in (select abs(+~abs( -min(c))) from t1 union select (min(t1.e)) from t1) then t1.f else 19 end)) then t1.c else (abs(e)/abs(19)) end*t1.f*f)<(t1.d))}
+} {0}
+do_test randexpr-2.335 {
+  db eval {SELECT case ~13*c-t1.f- -t1.f when coalesce((select max(coalesce((select max(t1.c) from t1 where coalesce((select t1.d from t1 where 11*f-a=a),t1.e) in (select case ~count(distinct 11) | min(c) when (count(*))-count(*) then max( -17) else (min(13)) end from t1 union select  - -cast(avg(b) AS integer) from t1)),19)-t1.c) from t1 where exists(select 1 from t1 where t1.b not between t1.e and 11 and ((a<>t1.f)) and (t1.a)=t1.d)),17) then t1.d else  -b end FROM t1 WHERE case when ~13+t1.e-19>=13 then 17 else t1.c end>=a*19 and (f in (select case min(t1.e*+(abs(11)/abs(13))) when count(distinct t1.c) | abs((min(t1.b)-(max(t1.d)))+abs(max(a))+count(*)) | cast(avg(e) AS integer) then max(c) else max(c) end from t1 union select min(t1.c) from t1))}
+} {}
+do_test randexpr-2.336 {
+  db eval {SELECT case ~13*c-t1.f- -t1.f when coalesce((select max(coalesce((select max(t1.c) from t1 where coalesce((select t1.d from t1 where 11*f-a=a),t1.e) in (select case ~count(distinct 11) | min(c) when (count(*))-count(*) then max( -17) else (min(13)) end from t1 union select  - -cast(avg(b) AS integer) from t1)),19)-t1.c) from t1 where exists(select 1 from t1 where t1.b not between t1.e and 11 and ((a<>t1.f)) and (t1.a)=t1.d)),17) then t1.d else  -b end FROM t1 WHERE NOT (case when ~13+t1.e-19>=13 then 17 else t1.c end>=a*19 and (f in (select case min(t1.e*+(abs(11)/abs(13))) when count(distinct t1.c) | abs((min(t1.b)-(max(t1.d)))+abs(max(a))+count(*)) | cast(avg(e) AS integer) then max(c) else max(c) end from t1 union select min(t1.c) from t1)))}
+} {-200}
+do_test randexpr-2.337 {
+  db eval {SELECT case ~13*c-t1.f- -t1.f when coalesce((select max(coalesce((select max(t1.c) from t1 where coalesce((select t1.d from t1 where 11*f-a=a),t1.e) in (select case ~count(distinct 11) & min(c) when (count(*))-count(*) then max( -17) else (min(13)) end from t1 union select  - -cast(avg(b) AS integer) from t1)),19)-t1.c) from t1 where exists(select 1 from t1 where t1.b not between t1.e and 11 and ((a<>t1.f)) and (t1.a)=t1.d)),17) then t1.d else  -b end FROM t1 WHERE NOT (case when ~13+t1.e-19>=13 then 17 else t1.c end>=a*19 and (f in (select case min(t1.e*+(abs(11)/abs(13))) when count(distinct t1.c) | abs((min(t1.b)-(max(t1.d)))+abs(max(a))+count(*)) | cast(avg(e) AS integer) then max(c) else max(c) end from t1 union select min(t1.c) from t1)))}
+} {-200}
+do_test randexpr-2.338 {
+  db eval {SELECT f*13-t1.f*(abs(19*t1.a*c-(select ~max(t1.c)- -( -cast(avg(f) AS integer))+(max(d))*cast(avg(t1.d) AS integer)*(count(*)) from t1))/abs(case when coalesce((select (coalesce((select max(t1.c) from t1 where  -(b)<> -t1.a),b)+11) from t1 where not (11)<=t1.e and c not between 17 and t1.e and b not in (f,(t1.a),t1.e)),t1.f) in (select t1.d from t1 union select 19 from t1) then t1.a when f>13 then t1.e else a end)) FROM t1 WHERE  -b<>b*t1.e}
+} {-484800}
+do_test randexpr-2.339 {
+  db eval {SELECT f*13-t1.f*(abs(19*t1.a*c-(select ~max(t1.c)- -( -cast(avg(f) AS integer))+(max(d))*cast(avg(t1.d) AS integer)*(count(*)) from t1))/abs(case when coalesce((select (coalesce((select max(t1.c) from t1 where  -(b)<> -t1.a),b)+11) from t1 where not (11)<=t1.e and c not between 17 and t1.e and b not in (f,(t1.a),t1.e)),t1.f) in (select t1.d from t1 union select 19 from t1) then t1.a when f>13 then t1.e else a end)) FROM t1 WHERE NOT ( -b<>b*t1.e)}
+} {}
+do_test randexpr-2.340 {
+  db eval {SELECT case when coalesce((select c from t1 where (13-(11-t1.e | t1.b) in (select +min(c)*+case +min(t1.e) when min(coalesce((select t1.e*t1.a from t1 where t1.f in (t1.d,11,t1.d) or t1.e>11 or t1.d>=c),17))+max(11)-count(distinct  -a) | max(11)+min(t1.c)-max(13) then count(distinct c) else (max(13)) end from t1 union select (( -cast(avg(11) AS integer))) from t1))),d) in (select f from t1 union select t1.a from t1) then 17 else 19 end FROM t1 WHERE not exists(select 1 from t1 where (select +min(case when not (f*e between (select min(~~t1.d) from t1)*(abs(c)/abs(d)) and case when f<t1.b then 19 else e end+t1.b) and not exists(select 1 from t1 where exists(select 1 from t1 where 11 in (select t1.e from t1 union select (a) from t1))) then case when  -c>=b then t1.f when not c>=17 then ~t1.b else 11 end else 19 end) from t1)-19 not in (d,t1.a,d))}
+} {}
+do_test randexpr-2.341 {
+  db eval {SELECT case when coalesce((select c from t1 where (13-(11-t1.e | t1.b) in (select +min(c)*+case +min(t1.e) when min(coalesce((select t1.e*t1.a from t1 where t1.f in (t1.d,11,t1.d) or t1.e>11 or t1.d>=c),17))+max(11)-count(distinct  -a) | max(11)+min(t1.c)-max(13) then count(distinct c) else (max(13)) end from t1 union select (( -cast(avg(11) AS integer))) from t1))),d) in (select f from t1 union select t1.a from t1) then 17 else 19 end FROM t1 WHERE NOT (not exists(select 1 from t1 where (select +min(case when not (f*e between (select min(~~t1.d) from t1)*(abs(c)/abs(d)) and case when f<t1.b then 19 else e end+t1.b) and not exists(select 1 from t1 where exists(select 1 from t1 where 11 in (select t1.e from t1 union select (a) from t1))) then case when  -c>=b then t1.f when not c>=17 then ~t1.b else 11 end else 19 end) from t1)-19 not in (d,t1.a,d)))}
+} {19}
+do_test randexpr-2.342 {
+  db eval {SELECT case when coalesce((select c from t1 where (13-(11-t1.e & t1.b) in (select +min(c)*+case +min(t1.e) when min(coalesce((select t1.e*t1.a from t1 where t1.f in (t1.d,11,t1.d) or t1.e>11 or t1.d>=c),17))+max(11)-count(distinct  -a) & max(11)+min(t1.c)-max(13) then count(distinct c) else (max(13)) end from t1 union select (( -cast(avg(11) AS integer))) from t1))),d) in (select f from t1 union select t1.a from t1) then 17 else 19 end FROM t1 WHERE NOT (not exists(select 1 from t1 where (select +min(case when not (f*e between (select min(~~t1.d) from t1)*(abs(c)/abs(d)) and case when f<t1.b then 19 else e end+t1.b) and not exists(select 1 from t1 where exists(select 1 from t1 where 11 in (select t1.e from t1 union select (a) from t1))) then case when  -c>=b then t1.f when not c>=17 then ~t1.b else 11 end else 19 end) from t1)-19 not in (d,t1.a,d)))}
+} {19}
+do_test randexpr-2.343 {
+  db eval {SELECT t1.c*a+(case when t1.b+11 | case when exists(select 1 from t1 where b<>17 or not exists(select 1 from t1 where t1.f in (19,t1.f,c)) or (t1.d)<>b) then e else d end+t1.b+t1.a*b=t1.d or d=b then t1.e when not exists(select 1 from t1 where b>t1.c or 17 between t1.f and e and d>=t1.c) then t1.d else c end) FROM t1 WHERE exists(select 1 from t1 where not exists(select 1 from t1 where (abs(c)/abs(b)) in (t1.a, -e*~e*17,17)))}
+} {30400}
+do_test randexpr-2.344 {
+  db eval {SELECT t1.c*a+(case when t1.b+11 | case when exists(select 1 from t1 where b<>17 or not exists(select 1 from t1 where t1.f in (19,t1.f,c)) or (t1.d)<>b) then e else d end+t1.b+t1.a*b=t1.d or d=b then t1.e when not exists(select 1 from t1 where b>t1.c or 17 between t1.f and e and d>=t1.c) then t1.d else c end) FROM t1 WHERE NOT (exists(select 1 from t1 where not exists(select 1 from t1 where (abs(c)/abs(b)) in (t1.a, -e*~e*17,17))))}
+} {}
+do_test randexpr-2.345 {
+  db eval {SELECT t1.c*a+(case when t1.b+11 & case when exists(select 1 from t1 where b<>17 or not exists(select 1 from t1 where t1.f in (19,t1.f,c)) or (t1.d)<>b) then e else d end+t1.b+t1.a*b=t1.d or d=b then t1.e when not exists(select 1 from t1 where b>t1.c or 17 between t1.f and e and d>=t1.c) then t1.d else c end) FROM t1 WHERE exists(select 1 from t1 where not exists(select 1 from t1 where (abs(c)/abs(b)) in (t1.a, -e*~e*17,17)))}
+} {30400}
+do_test randexpr-2.346 {
+  db eval {SELECT coalesce((select  -b from t1 where t1.f=d),case when case  -17-t1.b*t1.d+d when b then t1.a else t1.e end not in (t1.c,13,19) and e>f and 13 not between 17 and  -f and e not between d and a then 13 when c<=a then 13 else 19 | e end)*a-d*t1.e FROM t1 WHERE (abs(+t1.f)/abs(coalesce((select max(coalesce((select max(e) from t1 where t1.a in (select (abs( -t1.b)/abs(a)) from t1 union select e from t1)),(abs(case t1.f when c then (select (~cast(avg(b*d) AS integer))*abs(min(11)) from t1) else coalesce((select f from t1 where d in (select ( -min(e)) from t1 union select  -count(*) from t1)),t1.c) end*t1.b)/abs(c))+17)) from t1 where exists(select 1 from t1 where d not between t1.f and t1.b)),(t1.c))))*t1.d between t1.f and t1.a}
+} {}
+do_test randexpr-2.347 {
+  db eval {SELECT coalesce((select  -b from t1 where t1.f=d),case when case  -17-t1.b*t1.d+d when b then t1.a else t1.e end not in (t1.c,13,19) and e>f and 13 not between 17 and  -f and e not between d and a then 13 when c<=a then 13 else 19 | e end)*a-d*t1.e FROM t1 WHERE NOT ((abs(+t1.f)/abs(coalesce((select max(coalesce((select max(e) from t1 where t1.a in (select (abs( -t1.b)/abs(a)) from t1 union select e from t1)),(abs(case t1.f when c then (select (~cast(avg(b*d) AS integer))*abs(min(11)) from t1) else coalesce((select f from t1 where d in (select ( -min(e)) from t1 union select  -count(*) from t1)),t1.c) end*t1.b)/abs(c))+17)) from t1 where exists(select 1 from t1 where d not between t1.f and t1.b)),(t1.c))))*t1.d between t1.f and t1.a)}
+} {-149700}
+do_test randexpr-2.348 {
+  db eval {SELECT coalesce((select  -b from t1 where t1.f=d),case when case  -17-t1.b*t1.d+d when b then t1.a else t1.e end not in (t1.c,13,19) and e>f and 13 not between 17 and  -f and e not between d and a then 13 when c<=a then 13 else 19 & e end)*a-d*t1.e FROM t1 WHERE NOT ((abs(+t1.f)/abs(coalesce((select max(coalesce((select max(e) from t1 where t1.a in (select (abs( -t1.b)/abs(a)) from t1 union select e from t1)),(abs(case t1.f when c then (select (~cast(avg(b*d) AS integer))*abs(min(11)) from t1) else coalesce((select f from t1 where d in (select ( -min(e)) from t1 union select  -count(*) from t1)),t1.c) end*t1.b)/abs(c))+17)) from t1 where exists(select 1 from t1 where d not between t1.f and t1.b)),(t1.c))))*t1.d between t1.f and t1.a)}
+} {-198400}
+do_test randexpr-2.349 {
+  db eval {SELECT coalesce((select t1.b*19 from t1 where ~f in (select 19 from t1 union select ~b-+case 13 when coalesce((select max(a) from t1 where (abs(d)/abs(t1.d)) | t1.e-c-t1.d-t1.c+11*f-c+t1.a>17), -a) then f else t1.d end+17 | a*f | t1.c-d from t1)),19) FROM t1 WHERE t1.e*t1.c>coalesce((select 13 from t1 where ~t1.a<>case when exists(select 1 from t1 where e<>~d and not +17 not between a+case 13 when d then case t1.d when t1.a then b else 13 end else 13 end and 13) or 13 not in (t1.e,t1.f,t1.c) then 19-e+19 when f<=t1.f then b else 11 end),e)-13}
+} {19}
+do_test randexpr-2.350 {
+  db eval {SELECT coalesce((select t1.b*19 from t1 where ~f in (select 19 from t1 union select ~b-+case 13 when coalesce((select max(a) from t1 where (abs(d)/abs(t1.d)) | t1.e-c-t1.d-t1.c+11*f-c+t1.a>17), -a) then f else t1.d end+17 | a*f | t1.c-d from t1)),19) FROM t1 WHERE NOT (t1.e*t1.c>coalesce((select 13 from t1 where ~t1.a<>case when exists(select 1 from t1 where e<>~d and not +17 not between a+case 13 when d then case t1.d when t1.a then b else 13 end else 13 end and 13) or 13 not in (t1.e,t1.f,t1.c) then 19-e+19 when f<=t1.f then b else 11 end),e)-13)}
+} {}
+do_test randexpr-2.351 {
+  db eval {SELECT coalesce((select t1.b*19 from t1 where ~f in (select 19 from t1 union select ~b-+case 13 when coalesce((select max(a) from t1 where (abs(d)/abs(t1.d)) & t1.e-c-t1.d-t1.c+11*f-c+t1.a>17), -a) then f else t1.d end+17 & a*f & t1.c-d from t1)),19) FROM t1 WHERE t1.e*t1.c>coalesce((select 13 from t1 where ~t1.a<>case when exists(select 1 from t1 where e<>~d and not +17 not between a+case 13 when d then case t1.d when t1.a then b else 13 end else 13 end and 13) or 13 not in (t1.e,t1.f,t1.c) then 19-e+19 when f<=t1.f then b else 11 end),e)-13}
+} {19}
+do_test randexpr-2.352 {
+  db eval {SELECT (abs( -coalesce((select max((t1.f)) from t1 where not exists(select 1 from t1 where  -b-~b not between t1.c and f and t1.d*( -(select abs(+count(*)) from t1))-d>=a) and case when +case when ((f)) in (select  -count(distinct t1.a) from t1 union select count(*) from t1) then t1.b else d end in (select min(17) from t1 union select min(t1.e) from t1) then d else 17 end+c not between 11 and a),f)*11)/abs(a)) FROM t1 WHERE t1.f*t1.a*(+c)+case case when t1.d=f and (t1.a<>~+a*a*e*t1.e+case when t1.c between 11 and b and t1.a<>e then 13 when ( -t1.e)<>(t1.a) then (t1.b) else 13 end-t1.b-e+f) then t1.f+a else 17 end when d then 17 else d end-t1.e not in (13,t1.a,11)}
+} {66}
+do_test randexpr-2.353 {
+  db eval {SELECT (abs( -coalesce((select max((t1.f)) from t1 where not exists(select 1 from t1 where  -b-~b not between t1.c and f and t1.d*( -(select abs(+count(*)) from t1))-d>=a) and case when +case when ((f)) in (select  -count(distinct t1.a) from t1 union select count(*) from t1) then t1.b else d end in (select min(17) from t1 union select min(t1.e) from t1) then d else 17 end+c not between 11 and a),f)*11)/abs(a)) FROM t1 WHERE NOT (t1.f*t1.a*(+c)+case case when t1.d=f and (t1.a<>~+a*a*e*t1.e+case when t1.c between 11 and b and t1.a<>e then 13 when ( -t1.e)<>(t1.a) then (t1.b) else 13 end-t1.b-e+f) then t1.f+a else 17 end when d then 17 else d end-t1.e not in (13,t1.a,11))}
+} {}
+do_test randexpr-2.354 {
+  db eval {SELECT case t1.b- -t1.d+t1.d+t1.f when t1.f then 19+~13 else d end-case when not exists(select 1 from t1 where (f not between coalesce((select b from t1 where d in (17,13,t1.a) and 13 between c and 13 and 19>=f),13) and e or d not between 13 and f) or f>=d) then t1.f else coalesce((select max(~e-11) from t1 where t1.b in (f,13,13)),t1.a) end FROM t1 WHERE a<e}
+} {300}
+do_test randexpr-2.355 {
+  db eval {SELECT case t1.b- -t1.d+t1.d+t1.f when t1.f then 19+~13 else d end-case when not exists(select 1 from t1 where (f not between coalesce((select b from t1 where d in (17,13,t1.a) and 13 between c and 13 and 19>=f),13) and e or d not between 13 and f) or f>=d) then t1.f else coalesce((select max(~e-11) from t1 where t1.b in (f,13,13)),t1.a) end FROM t1 WHERE NOT (a<e)}
+} {}
+do_test randexpr-2.356 {
+  db eval {SELECT  -coalesce((select max(13) from t1 where case case when f in (select e from t1 union select coalesce((select max(e) from t1 where (select  -max(e) from t1)*t1.e<e and exists(select 1 from t1 where  -c in (a,a,a))),t1.d) from t1) and e>=t1.c and exists(select 1 from t1 where t1.f>=13) then t1.d when d between t1.d and t1.a then 19 else a end | e when (a) then e else a end between b and t1.c and not exists(select 1 from t1 where 13 in (t1.d,t1.a,13)) or t1.a>= -13),c) FROM t1 WHERE t1.e not in ( -coalesce((select max(13) from t1 where exists(select 1 from t1 where not t1.d>a) and t1.a not in (d*+case when t1.b in (select max(e*11+t1.a)+ -count(*)-( -max(t1.e))-min(11)-count(distinct t1.a) from t1 union select  - -min(t1.b) from t1) then t1.e when e in (select count(distinct t1.a) from t1 union select (max(d)) from t1) then e else  -(19) end+ -t1.d, -17,f)),case c when a then f else 17 end),d,11)}
+} {-13}
+do_test randexpr-2.357 {
+  db eval {SELECT  -coalesce((select max(13) from t1 where case case when f in (select e from t1 union select coalesce((select max(e) from t1 where (select  -max(e) from t1)*t1.e<e and exists(select 1 from t1 where  -c in (a,a,a))),t1.d) from t1) and e>=t1.c and exists(select 1 from t1 where t1.f>=13) then t1.d when d between t1.d and t1.a then 19 else a end | e when (a) then e else a end between b and t1.c and not exists(select 1 from t1 where 13 in (t1.d,t1.a,13)) or t1.a>= -13),c) FROM t1 WHERE NOT (t1.e not in ( -coalesce((select max(13) from t1 where exists(select 1 from t1 where not t1.d>a) and t1.a not in (d*+case when t1.b in (select max(e*11+t1.a)+ -count(*)-( -max(t1.e))-min(11)-count(distinct t1.a) from t1 union select  - -min(t1.b) from t1) then t1.e when e in (select count(distinct t1.a) from t1 union select (max(d)) from t1) then e else  -(19) end+ -t1.d, -17,f)),case c when a then f else 17 end),d,11))}
+} {}
+do_test randexpr-2.358 {
+  db eval {SELECT  -coalesce((select max(13) from t1 where case case when f in (select e from t1 union select coalesce((select max(e) from t1 where (select  -max(e) from t1)*t1.e<e and exists(select 1 from t1 where  -c in (a,a,a))),t1.d) from t1) and e>=t1.c and exists(select 1 from t1 where t1.f>=13) then t1.d when d between t1.d and t1.a then 19 else a end & e when (a) then e else a end between b and t1.c and not exists(select 1 from t1 where 13 in (t1.d,t1.a,13)) or t1.a>= -13),c) FROM t1 WHERE t1.e not in ( -coalesce((select max(13) from t1 where exists(select 1 from t1 where not t1.d>a) and t1.a not in (d*+case when t1.b in (select max(e*11+t1.a)+ -count(*)-( -max(t1.e))-min(11)-count(distinct t1.a) from t1 union select  - -min(t1.b) from t1) then t1.e when e in (select count(distinct t1.a) from t1 union select (max(d)) from t1) then e else  -(19) end+ -t1.d, -17,f)),case c when a then f else 17 end),d,11)}
+} {-13}
+do_test randexpr-2.359 {
+  db eval {SELECT case d when  -e+coalesce((select max(case (select +abs((~case case count(distinct b) when  -count(*) then count(*) else max(t1.e) end when max(e) then min(t1.c) else count(*) end-min(c))) from t1) when t1.c then t1.a else  -11 end) from t1 where case ~t1.b when e then d else 11 end in (b,t1.e,t1.b) or not t1.f>=b or (t1.f in (a,e,t1.e)) or f<b),t1.e) then t1.b else f end FROM t1 WHERE b<=(d) and (abs(coalesce((select max(coalesce((select case when (abs(~11)/abs(((abs(17+f+t1.f)/abs(t1.c))-11*c)-d*17)) not in (b,13,((e))) then 19 else 19 end from t1 where a in (select t1.b from t1 union select t1.b from t1)),13)) from t1 where t1.d in (select a from t1 union select 13 from t1)), -e)+17*c)/abs(t1.c))=13}
+} {}
+do_test randexpr-2.360 {
+  db eval {SELECT case d when  -e+coalesce((select max(case (select +abs((~case case count(distinct b) when  -count(*) then count(*) else max(t1.e) end when max(e) then min(t1.c) else count(*) end-min(c))) from t1) when t1.c then t1.a else  -11 end) from t1 where case ~t1.b when e then d else 11 end in (b,t1.e,t1.b) or not t1.f>=b or (t1.f in (a,e,t1.e)) or f<b),t1.e) then t1.b else f end FROM t1 WHERE NOT (b<=(d) and (abs(coalesce((select max(coalesce((select case when (abs(~11)/abs(((abs(17+f+t1.f)/abs(t1.c))-11*c)-d*17)) not in (b,13,((e))) then 19 else 19 end from t1 where a in (select t1.b from t1 union select t1.b from t1)),13)) from t1 where t1.d in (select a from t1 union select 13 from t1)), -e)+17*c)/abs(t1.c))=13)}
+} {600}
+do_test randexpr-2.361 {
+  db eval {SELECT case a when ~c then e+17-d else case t1.a when c then t1.b else case when ((case t1.e when c then d-11 else t1.f end not in (e,(17),t1.d))) or not exists(select 1 from t1 where e not in (d,t1.f,11) and  -t1.a>t1.b) or t1.a not in (f,t1.b,t1.e) or t1.d<=t1.b and 19 not in (t1.d,11,t1.f) then t1.d else 19 end+e+17 end |  -t1.c*d end-13 FROM t1 WHERE e not in (e,t1.b,t1.d)}
+} {}
+do_test randexpr-2.362 {
+  db eval {SELECT case a when ~c then e+17-d else case t1.a when c then t1.b else case when ((case t1.e when c then d-11 else t1.f end not in (e,(17),t1.d))) or not exists(select 1 from t1 where e not in (d,t1.f,11) and  -t1.a>t1.b) or t1.a not in (f,t1.b,t1.e) or t1.d<=t1.b and 19 not in (t1.d,11,t1.f) then t1.d else 19 end+e+17 end |  -t1.c*d end-13 FROM t1 WHERE NOT (e not in (e,t1.b,t1.d))}
+} {-119864}
+do_test randexpr-2.363 {
+  db eval {SELECT case a when ~c then e+17-d else case t1.a when c then t1.b else case when ((case t1.e when c then d-11 else t1.f end not in (e,(17),t1.d))) or not exists(select 1 from t1 where e not in (d,t1.f,11) and  -t1.a>t1.b) or t1.a not in (f,t1.b,t1.e) or t1.d<=t1.b and 19 not in (t1.d,11,t1.f) then t1.d else 19 end+e+17 end &  -t1.c*d end-13 FROM t1 WHERE NOT (e not in (e,t1.b,t1.d))}
+} {755}
+do_test randexpr-2.364 {
+  db eval {SELECT coalesce((select max(case t1.a when d then ~11 else t1.e end) from t1 where (t1.f*17<t1.d-(t1.a*t1.a+t1.b+case case d when coalesce((select max(19) from t1 where  -(t1.e) in (select count(distinct c) from t1 union select (count(distinct t1.f)) from t1)),13) then c else 19 end*d when c then 13 else 17 end+t1.c)) and (f>=a or t1.e=t1.a and  -c>=t1.b)),t1.b) FROM t1 WHERE a+( -t1.c) between case when case a when t1.f then ~t1.b*t1.c+17 else  -case when f not in (e,f,17) then a when 11=13 then t1.c else t1.d end end>=t1.b then b when t1.d in (select +max(19) from t1 union select abs(cast(avg(t1.f) AS integer))+case ~count(*)-max(t1.a)+max(11) when (max(a)) then (max(t1.d)) else count(distinct 11) end from t1) and e in (t1.d,17,11) then (11) else b end and a}
+} {}
+do_test randexpr-2.365 {
+  db eval {SELECT coalesce((select max(case t1.a when d then ~11 else t1.e end) from t1 where (t1.f*17<t1.d-(t1.a*t1.a+t1.b+case case d when coalesce((select max(19) from t1 where  -(t1.e) in (select count(distinct c) from t1 union select (count(distinct t1.f)) from t1)),13) then c else 19 end*d when c then 13 else 17 end+t1.c)) and (f>=a or t1.e=t1.a and  -c>=t1.b)),t1.b) FROM t1 WHERE NOT (a+( -t1.c) between case when case a when t1.f then ~t1.b*t1.c+17 else  -case when f not in (e,f,17) then a when 11=13 then t1.c else t1.d end end>=t1.b then b when t1.d in (select +max(19) from t1 union select abs(cast(avg(t1.f) AS integer))+case ~count(*)-max(t1.a)+max(11) when (max(a)) then (max(t1.d)) else count(distinct 11) end from t1) and e in (t1.d,17,11) then (11) else b end and a)}
+} {200}
+do_test randexpr-2.366 {
+  db eval {SELECT t1.f+case when c*f | (t1.a) in (select b*f from t1 union select  -case when d not between ~13 | 13+case a when a then e else a end and f then 11 else e-t1.d end from t1) then  -(abs(case when ((case t1.f when t1.b then t1.f else a end*f+t1.c)) in (select d from t1 union select (t1.e) from t1) then d else (t1.f) end)/abs(b)) else t1.a end FROM t1 WHERE ~(f+17-(select +max(t1.f)-case count(distinct d-19) when ~count(distinct (abs(b)/abs(a))) then cast(avg(17) AS integer) else ~count(distinct e)*count(*) end from t1)-f-coalesce((select t1.f from t1 where t1.a>=t1.c or t1.b between  -t1.a and 19 or exists(select 1 from t1 where t1.e not in (13,t1.c,e)) and d>a),t1.d)) not between d and c}
+} {700}
+do_test randexpr-2.367 {
+  db eval {SELECT t1.f+case when c*f | (t1.a) in (select b*f from t1 union select  -case when d not between ~13 | 13+case a when a then e else a end and f then 11 else e-t1.d end from t1) then  -(abs(case when ((case t1.f when t1.b then t1.f else a end*f+t1.c)) in (select d from t1 union select (t1.e) from t1) then d else (t1.f) end)/abs(b)) else t1.a end FROM t1 WHERE NOT (~(f+17-(select +max(t1.f)-case count(distinct d-19) when ~count(distinct (abs(b)/abs(a))) then cast(avg(17) AS integer) else ~count(distinct e)*count(*) end from t1)-f-coalesce((select t1.f from t1 where t1.a>=t1.c or t1.b between  -t1.a and 19 or exists(select 1 from t1 where t1.e not in (13,t1.c,e)) and d>a),t1.d)) not between d and c)}
+} {}
+do_test randexpr-2.368 {
+  db eval {SELECT t1.f+case when c*f & (t1.a) in (select b*f from t1 union select  -case when d not between ~13 & 13+case a when a then e else a end and f then 11 else e-t1.d end from t1) then  -(abs(case when ((case t1.f when t1.b then t1.f else a end*f+t1.c)) in (select d from t1 union select (t1.e) from t1) then d else (t1.f) end)/abs(b)) else t1.a end FROM t1 WHERE ~(f+17-(select +max(t1.f)-case count(distinct d-19) when ~count(distinct (abs(b)/abs(a))) then cast(avg(17) AS integer) else ~count(distinct e)*count(*) end from t1)-f-coalesce((select t1.f from t1 where t1.a>=t1.c or t1.b between  -t1.a and 19 or exists(select 1 from t1 where t1.e not in (13,t1.c,e)) and d>a),t1.d)) not between d and c}
+} {700}
+do_test randexpr-2.369 {
+  db eval {SELECT case when coalesce((select d from t1 where not coalesce((select f*t1.b from t1 where exists(select 1 from t1 where (t1.f*t1.a)-19-13 in (select ~(cast(avg(t1.b) AS integer)) from t1 union select min(t1.a)+case min( -t1.a) when cast(avg(19) AS integer) then cast(avg(19) AS integer) else min(13) end+( -min(a)) from t1))),(t1.f)) between 17 and d),11)=19 then t1.b when 17<11 or exists(select 1 from t1 where d in (select 13 from t1 union select f from t1)) then 11 else t1.c end FROM t1 WHERE case c when 13 then +t1.d else t1.a end in (select abs(case + -count(*)+count(distinct coalesce((select (abs(~case when t1.c=19 | 13 then t1.c when not e>(13) then f else d end)/abs(a)) from t1 where 17>=t1.b),t1.b))+min(t1.a)*count(*) | (((max(a)))-cast(avg((17)) AS integer)) when max(d) then count(*) else cast(avg(t1.e) AS integer) end) from t1 union select count(*) from t1)}
+} {}
+do_test randexpr-2.370 {
+  db eval {SELECT case when coalesce((select d from t1 where not coalesce((select f*t1.b from t1 where exists(select 1 from t1 where (t1.f*t1.a)-19-13 in (select ~(cast(avg(t1.b) AS integer)) from t1 union select min(t1.a)+case min( -t1.a) when cast(avg(19) AS integer) then cast(avg(19) AS integer) else min(13) end+( -min(a)) from t1))),(t1.f)) between 17 and d),11)=19 then t1.b when 17<11 or exists(select 1 from t1 where d in (select 13 from t1 union select f from t1)) then 11 else t1.c end FROM t1 WHERE NOT (case c when 13 then +t1.d else t1.a end in (select abs(case + -count(*)+count(distinct coalesce((select (abs(~case when t1.c=19 | 13 then t1.c when not e>(13) then f else d end)/abs(a)) from t1 where 17>=t1.b),t1.b))+min(t1.a)*count(*) | (((max(a)))-cast(avg((17)) AS integer)) when max(d) then count(*) else cast(avg(t1.e) AS integer) end) from t1 union select count(*) from t1))}
+} {300}
+do_test randexpr-2.371 {
+  db eval {SELECT  -(select count(*) from t1)*(select (+(cast(avg(+f) AS integer))+++case +max(t1.b-case when t1.e+t1.e>=11 then  -a else t1.e end)-abs(min(e)+ -max(c) | ((max(11)))) when max(11) then (min(b)) else cast(avg( -b) AS integer) end-cast(avg(b) AS integer)-count(*)+count(*)) from t1)+~17- -t1.a FROM t1 WHERE f between 19*t1.d and 19}
+} {}
+do_test randexpr-2.372 {
+  db eval {SELECT  -(select count(*) from t1)*(select (+(cast(avg(+f) AS integer))+++case +max(t1.b-case when t1.e+t1.e>=11 then  -a else t1.e end)-abs(min(e)+ -max(c) | ((max(11)))) when max(11) then (min(b)) else cast(avg( -b) AS integer) end-cast(avg(b) AS integer)-count(*)+count(*)) from t1)+~17- -t1.a FROM t1 WHERE NOT (f between 19*t1.d and 19)}
+} {-118}
+do_test randexpr-2.373 {
+  db eval {SELECT  -(select count(*) from t1)*(select (+(cast(avg(+f) AS integer))+++case +max(t1.b-case when t1.e+t1.e>=11 then  -a else t1.e end)-abs(min(e)+ -max(c) & ((max(11)))) when max(11) then (min(b)) else cast(avg( -b) AS integer) end-cast(avg(b) AS integer)-count(*)+count(*)) from t1)+~17- -t1.a FROM t1 WHERE NOT (f between 19*t1.d and 19)}
+} {-118}
+do_test randexpr-2.374 {
+  db eval {SELECT case when not t1.a< -~~e then b when c*(select +case max((abs( -a)/abs(a))) when min(t1.b) then case ~min(t1.d)-cast(avg(e) AS integer) | max(e) when count(distinct 11) then count(*) else max(b) end else count(*) end from t1) not between 13 and case when exists(select 1 from t1 where exists(select 1 from t1 where f not in (19,t1.f,19)) and 11 between t1.b and t1.b) then (13) else  -t1.d end then f else e end FROM t1 WHERE d>11}
+} {200}
+do_test randexpr-2.375 {
+  db eval {SELECT case when not t1.a< -~~e then b when c*(select +case max((abs( -a)/abs(a))) when min(t1.b) then case ~min(t1.d)-cast(avg(e) AS integer) | max(e) when count(distinct 11) then count(*) else max(b) end else count(*) end from t1) not between 13 and case when exists(select 1 from t1 where exists(select 1 from t1 where f not in (19,t1.f,19)) and 11 between t1.b and t1.b) then (13) else  -t1.d end then f else e end FROM t1 WHERE NOT (d>11)}
+} {}
+do_test randexpr-2.376 {
+  db eval {SELECT case when not t1.a< -~~e then b when c*(select +case max((abs( -a)/abs(a))) when min(t1.b) then case ~min(t1.d)-cast(avg(e) AS integer) & max(e) when count(distinct 11) then count(*) else max(b) end else count(*) end from t1) not between 13 and case when exists(select 1 from t1 where exists(select 1 from t1 where f not in (19,t1.f,19)) and 11 between t1.b and t1.b) then (13) else  -t1.d end then f else e end FROM t1 WHERE d>11}
+} {200}
+do_test randexpr-2.377 {
+  db eval {SELECT coalesce((select max(t1.c | ~17) from t1 where exists(select 1 from t1 where t1.f<>b-(abs(13)/abs(e)))),13) FROM t1 WHERE case when case (abs(c+a+19+coalesce((select max(t1.a) from t1 where coalesce((select coalesce((select (f) from t1 where t1.d between 19 and b),t1.a) from t1 where 13=(c)),f) in (select ~case count(*) when max(t1.b) then ((count(distinct 11))) else count(*) end- -count(distinct a) from t1 union select count(distinct 13) from t1)),t1.c) | t1.b+t1.d)/abs(e)) when t1.d then a else 17 end not between 19 and t1.f then t1.b else d end in (select t1.c from t1 union select (t1.a) from t1)}
+} {}
+do_test randexpr-2.378 {
+  db eval {SELECT coalesce((select max(t1.c | ~17) from t1 where exists(select 1 from t1 where t1.f<>b-(abs(13)/abs(e)))),13) FROM t1 WHERE NOT (case when case (abs(c+a+19+coalesce((select max(t1.a) from t1 where coalesce((select coalesce((select (f) from t1 where t1.d between 19 and b),t1.a) from t1 where 13=(c)),f) in (select ~case count(*) when max(t1.b) then ((count(distinct 11))) else count(*) end- -count(distinct a) from t1 union select count(distinct 13) from t1)),t1.c) | t1.b+t1.d)/abs(e)) when t1.d then a else 17 end not between 19 and t1.f then t1.b else d end in (select t1.c from t1 union select (t1.a) from t1))}
+} {-18}
+do_test randexpr-2.379 {
+  db eval {SELECT coalesce((select max(t1.c & ~17) from t1 where exists(select 1 from t1 where t1.f<>b-(abs(13)/abs(e)))),13) FROM t1 WHERE NOT (case when case (abs(c+a+19+coalesce((select max(t1.a) from t1 where coalesce((select coalesce((select (f) from t1 where t1.d between 19 and b),t1.a) from t1 where 13=(c)),f) in (select ~case count(*) when max(t1.b) then ((count(distinct 11))) else count(*) end- -count(distinct a) from t1 union select count(distinct 13) from t1)),t1.c) | t1.b+t1.d)/abs(e)) when t1.d then a else 17 end not between 19 and t1.f then t1.b else d end in (select t1.c from t1 union select (t1.a) from t1))}
+} {300}
+do_test randexpr-2.380 {
+  db eval {SELECT (coalesce((select (coalesce((select d from t1 where not exists(select 1 from t1 where 17>t1.c)),d))*c from t1 where t1.b between t1.d | (select count(distinct coalesce((select max(t1.e) from t1 where case when  -e>t1.b then f when t1.a<t1.f then t1.e else t1.d end<=c),(19))) from t1) and b or 13 in (t1.d,t1.d,t1.d)),t1.b)-b*f)+11-t1.e FROM t1 WHERE d<case when d>(abs(19*case when coalesce((select b*case when 11 not between 19 and (abs(13)/abs(t1.b-t1.d-e+b-f+19*t1.a)) then  -t1.a else f end from t1 where (b=17)),f)= -t1.d then 17 when 11<>19 then f else t1.d end)/abs(t1.b)) then d else 19 end}
+} {}
+do_test randexpr-2.381 {
+  db eval {SELECT (coalesce((select (coalesce((select d from t1 where not exists(select 1 from t1 where 17>t1.c)),d))*c from t1 where t1.b between t1.d | (select count(distinct coalesce((select max(t1.e) from t1 where case when  -e>t1.b then f when t1.a<t1.f then t1.e else t1.d end<=c),(19))) from t1) and b or 13 in (t1.d,t1.d,t1.d)),t1.b)-b*f)+11-t1.e FROM t1 WHERE NOT (d<case when d>(abs(19*case when coalesce((select b*case when 11 not between 19 and (abs(13)/abs(t1.b-t1.d-e+b-f+19*t1.a)) then  -t1.a else f end from t1 where (b=17)),f)= -t1.d then 17 when 11<>19 then f else t1.d end)/abs(t1.b)) then d else 19 end)}
+} {-120289}
+do_test randexpr-2.382 {
+  db eval {SELECT (coalesce((select (coalesce((select d from t1 where not exists(select 1 from t1 where 17>t1.c)),d))*c from t1 where t1.b between t1.d & (select count(distinct coalesce((select max(t1.e) from t1 where case when  -e>t1.b then f when t1.a<t1.f then t1.e else t1.d end<=c),(19))) from t1) and b or 13 in (t1.d,t1.d,t1.d)),t1.b)-b*f)+11-t1.e FROM t1 WHERE NOT (d<case when d>(abs(19*case when coalesce((select b*case when 11 not between 19 and (abs(13)/abs(t1.b-t1.d-e+b-f+19*t1.a)) then  -t1.a else f end from t1 where (b=17)),f)= -t1.d then 17 when 11<>19 then f else t1.d end)/abs(t1.b)) then d else 19 end)}
+} {-489}
+do_test randexpr-2.383 {
+  db eval {SELECT 19*case when coalesce((select max(t1.e-c) from t1 where f=(abs(coalesce((select t1.c from t1 where not (not exists(select 1 from t1 where a in (select b from t1 union select c from t1)))),13))/abs(coalesce((select 13 from t1 where t1.b in (d,t1.d,a)), -t1.b)))),c) in (select ~min(t1.c) from t1 union select count(*) from t1) and  -f<>t1.c then t1.a-t1.e when not t1.a in (select cast(avg(a) AS integer) from t1 union select min(13) from t1) then  -19 else f end FROM t1 WHERE 11<>13}
+} {11400}
+do_test randexpr-2.384 {
+  db eval {SELECT 19*case when coalesce((select max(t1.e-c) from t1 where f=(abs(coalesce((select t1.c from t1 where not (not exists(select 1 from t1 where a in (select b from t1 union select c from t1)))),13))/abs(coalesce((select 13 from t1 where t1.b in (d,t1.d,a)), -t1.b)))),c) in (select ~min(t1.c) from t1 union select count(*) from t1) and  -f<>t1.c then t1.a-t1.e when not t1.a in (select cast(avg(a) AS integer) from t1 union select min(13) from t1) then  -19 else f end FROM t1 WHERE NOT (11<>13)}
+} {}
+do_test randexpr-2.385 {
+  db eval {SELECT t1.b*(select max(t1.b*coalesce((select max(t1.f*(t1.b)) from t1 where 17 not in (d,(a),(t1.b)+13)),t1.c)-t1.a) | cast(avg(t1.d) AS integer) | ~+case abs(abs(count(distinct t1.b))) when ~count(distinct e)-(count(*)) then max(t1.e) else max(d) end | max((19)) | min(19) from t1)-t1.d-t1.d*17 FROM t1 WHERE t1.f-case t1.d+19+13*case when (abs(e)/abs((select count(*)+cast(avg(a) AS integer)*count(*) from t1)-c*(abs(d)/abs(c*t1.e-19)))) not in (17,17,t1.a) then t1.f when t1.d<>t1.f then b else d end+ - -f*t1.b*d when b then 11 else  -13 end<=(t1.b)}
+} {}
+do_test randexpr-2.386 {
+  db eval {SELECT t1.b*(select max(t1.b*coalesce((select max(t1.f*(t1.b)) from t1 where 17 not in (d,(a),(t1.b)+13)),t1.c)-t1.a) | cast(avg(t1.d) AS integer) | ~+case abs(abs(count(distinct t1.b))) when ~count(distinct e)-(count(*)) then max(t1.e) else max(d) end | max((19)) | min(19) from t1)-t1.d-t1.d*17 FROM t1 WHERE NOT (t1.f-case t1.d+19+13*case when (abs(e)/abs((select count(*)+cast(avg(a) AS integer)*count(*) from t1)-c*(abs(d)/abs(c*t1.e-19)))) not in (17,17,t1.a) then t1.f when t1.d<>t1.f then b else d end+ - -f*t1.b*d when b then 11 else  -13 end<=(t1.b))}
+} {-7400}
+do_test randexpr-2.387 {
+  db eval {SELECT t1.b*(select max(t1.b*coalesce((select max(t1.f*(t1.b)) from t1 where 17 not in (d,(a),(t1.b)+13)),t1.c)-t1.a) & cast(avg(t1.d) AS integer) & ~+case abs(abs(count(distinct t1.b))) when ~count(distinct e)-(count(*)) then max(t1.e) else max(d) end & max((19)) & min(19) from t1)-t1.d-t1.d*17 FROM t1 WHERE NOT (t1.f-case t1.d+19+13*case when (abs(e)/abs((select count(*)+cast(avg(a) AS integer)*count(*) from t1)-c*(abs(d)/abs(c*t1.e-19)))) not in (17,17,t1.a) then t1.f when t1.d<>t1.f then b else d end+ - -f*t1.b*d when b then 11 else  -13 end<=(t1.b))}
+} {-7200}
+do_test randexpr-2.388 {
+  db eval {SELECT (select abs(count(distinct t1.e) | min(b))-cast(avg(c) AS integer) | case +~+max(t1.a)*abs(+~ - -+cast(avg(19*f) AS integer) | count(*) | ~max(b) | ((max(t1.e)))-count(distinct t1.d)+ -(count(distinct t1.c)))* -count(distinct 17) | count(distinct a) when ((count(distinct t1.d))) then  -min(t1.c) else count(distinct t1.c) end- -min(d) from t1) FROM t1 WHERE ((not exists(select 1 from t1 where c=f)) and case when not 19+t1.c- -11+11+e>=a or t1.d>b then f else t1.e end<> -t1.c) or (t1.a in (select +count(*) from t1 union select abs((case max(d) when count(distinct d) then min( -t1.e) else count(distinct a) end-count(distinct  -t1.f)))*count(*) from t1) or not exists(select 1 from t1 where t1.d not in (c,17,e)))}
+} {-99}
+do_test randexpr-2.389 {
+  db eval {SELECT (select abs(count(distinct t1.e) | min(b))-cast(avg(c) AS integer) | case +~+max(t1.a)*abs(+~ - -+cast(avg(19*f) AS integer) | count(*) | ~max(b) | ((max(t1.e)))-count(distinct t1.d)+ -(count(distinct t1.c)))* -count(distinct 17) | count(distinct a) when ((count(distinct t1.d))) then  -min(t1.c) else count(distinct t1.c) end- -min(d) from t1) FROM t1 WHERE NOT (((not exists(select 1 from t1 where c=f)) and case when not 19+t1.c- -11+11+e>=a or t1.d>b then f else t1.e end<> -t1.c) or (t1.a in (select +count(*) from t1 union select abs((case max(d) when count(distinct d) then min( -t1.e) else count(distinct a) end-count(distinct  -t1.f)))*count(*) from t1) or not exists(select 1 from t1 where t1.d not in (c,17,e))))}
+} {}
+do_test randexpr-2.390 {
+  db eval {SELECT (select abs(count(distinct t1.e) & min(b))-cast(avg(c) AS integer) & case +~+max(t1.a)*abs(+~ - -+cast(avg(19*f) AS integer) & count(*) & ~max(b) & ((max(t1.e)))-count(distinct t1.d)+ -(count(distinct t1.c)))* -count(distinct 17) & count(distinct a) when ((count(distinct t1.d))) then  -min(t1.c) else count(distinct t1.c) end- -min(d) from t1) FROM t1 WHERE ((not exists(select 1 from t1 where c=f)) and case when not 19+t1.c- -11+11+e>=a or t1.d>b then f else t1.e end<> -t1.c) or (t1.a in (select +count(*) from t1 union select abs((case max(d) when count(distinct d) then min( -t1.e) else count(distinct a) end-count(distinct  -t1.f)))*count(*) from t1) or not exists(select 1 from t1 where t1.d not in (c,17,e)))}
+} {144}
+do_test randexpr-2.391 {
+  db eval {SELECT case when exists(select 1 from t1 where coalesce((select b from t1 where case when (b<t1.b) then (select (min(a+17+a-t1.f)) from t1) else t1.a end in (select (17-a)*t1.e+c*c from t1 union select 17 from t1)),t1.f)<e) then case when t1.e in (t1.d, -t1.a,c) then 17 else  -e end when not t1.c in (select t1.e from t1 union select e from t1) then t1.c else t1.b end FROM t1 WHERE coalesce((select max(13) from t1 where e=t1.a),case when f+(d)<=~case when (case when 17*t1.a in (select 13 from t1 union select 19 from t1) then f else 17 end in (select max(t1.a) from t1 union select cast(avg(t1.e) AS integer)+max(a) | count(*) from t1)) or 13 in (b,t1.e,19) then t1.b*b when t1.a> -11 then  -t1.c else  -b end then d else t1.a end) not in (t1.b,d,t1.b)}
+} {300}
+do_test randexpr-2.392 {
+  db eval {SELECT case when exists(select 1 from t1 where coalesce((select b from t1 where case when (b<t1.b) then (select (min(a+17+a-t1.f)) from t1) else t1.a end in (select (17-a)*t1.e+c*c from t1 union select 17 from t1)),t1.f)<e) then case when t1.e in (t1.d, -t1.a,c) then 17 else  -e end when not t1.c in (select t1.e from t1 union select e from t1) then t1.c else t1.b end FROM t1 WHERE NOT (coalesce((select max(13) from t1 where e=t1.a),case when f+(d)<=~case when (case when 17*t1.a in (select 13 from t1 union select 19 from t1) then f else 17 end in (select max(t1.a) from t1 union select cast(avg(t1.e) AS integer)+max(a) | count(*) from t1)) or 13 in (b,t1.e,19) then t1.b*b when t1.a> -11 then  -t1.c else  -b end then d else t1.a end) not in (t1.b,d,t1.b))}
+} {}
+do_test randexpr-2.393 {
+  db eval {SELECT t1.f+coalesce((select t1.a-t1.d*f-coalesce((select max(coalesce((select max(t1.c) from t1 where exists(select 1 from t1 where a=~t1.d+case when (c in (select abs(~( -cast(avg(e) AS integer))) from t1 union select  -min(19) from t1)) and 19<>t1.e or t1.e<11 and c in (t1.b,t1.b,t1.d) or 17 between  -t1.d and t1.d then 11 else d end)),c-f)) from t1 where t1.a<=t1.c),11)-t1.c from t1 where f between t1.a and d),19) FROM t1 WHERE exists(select 1 from t1 where case +t1.d when d then f else t1.e end in (t1.e,17,11) or 13*e-t1.b in (select t1.e from t1 union select 17 from t1)) and 11<=case  -case when not exists(select 1 from t1 where (17 | t1.e in (11,11,11) and b<(19))) then case t1.c+t1.f+c when t1.b then c else 19 end else 17 end when d then t1.b else t1.a end}
+} {}
+do_test randexpr-2.394 {
+  db eval {SELECT t1.f+coalesce((select t1.a-t1.d*f-coalesce((select max(coalesce((select max(t1.c) from t1 where exists(select 1 from t1 where a=~t1.d+case when (c in (select abs(~( -cast(avg(e) AS integer))) from t1 union select  -min(19) from t1)) and 19<>t1.e or t1.e<11 and c in (t1.b,t1.b,t1.d) or 17 between  -t1.d and t1.d then 11 else d end)),c-f)) from t1 where t1.a<=t1.c),11)-t1.c from t1 where f between t1.a and d),19) FROM t1 WHERE NOT (exists(select 1 from t1 where case +t1.d when d then f else t1.e end in (t1.e,17,11) or 13*e-t1.b in (select t1.e from t1 union select 17 from t1)) and 11<=case  -case when not exists(select 1 from t1 where (17 | t1.e in (11,11,11) and b<(19))) then case t1.c+t1.f+c when t1.b then c else 19 end else 17 end when d then t1.b else t1.a end)}
+} {619}
+do_test randexpr-2.395 {
+  db eval {SELECT case when (coalesce((select coalesce((select max( -11) from t1 where not case t1.c*case when exists(select 1 from t1 where (t1.d) in (select case count(*) when count(distinct t1.c) then count(*) else count(*) end from t1 union select cast(avg(t1.c) AS integer) from t1)) then +e when f=19 then 17 else t1.e end when t1.a then 19 else c end=e),t1.a)- -d*f-a from t1 where (t1.e)<>13),19)*(a)=19) then (c) when (exists(select 1 from t1 where 17=t1.d)) then 19 else c end FROM t1 WHERE t1.d*c*(select cast(avg(((abs(t1.d*13)/abs(f)))) AS integer) from t1)+t1.d=case when +(coalesce((select t1.a from t1 where case when not exists(select 1 from t1 where not exists(select 1 from t1 where c=t1.e)) then 19 |  -17 else 13 end not in (t1.f,b,t1.b)),t1.f))*t1.a-t1.c-13 in (e,11,t1.c) then t1.a when (d between  -t1.f and f) then t1.d else t1.a end}
+} {}
+do_test randexpr-2.396 {
+  db eval {SELECT case when (coalesce((select coalesce((select max( -11) from t1 where not case t1.c*case when exists(select 1 from t1 where (t1.d) in (select case count(*) when count(distinct t1.c) then count(*) else count(*) end from t1 union select cast(avg(t1.c) AS integer) from t1)) then +e when f=19 then 17 else t1.e end when t1.a then 19 else c end=e),t1.a)- -d*f-a from t1 where (t1.e)<>13),19)*(a)=19) then (c) when (exists(select 1 from t1 where 17=t1.d)) then 19 else c end FROM t1 WHERE NOT (t1.d*c*(select cast(avg(((abs(t1.d*13)/abs(f)))) AS integer) from t1)+t1.d=case when +(coalesce((select t1.a from t1 where case when not exists(select 1 from t1 where not exists(select 1 from t1 where c=t1.e)) then 19 |  -17 else 13 end not in (t1.f,b,t1.b)),t1.f))*t1.a-t1.c-13 in (e,11,t1.c) then t1.a when (d between  -t1.f and f) then t1.d else t1.a end)}
+} {300}
+do_test randexpr-2.397 {
+  db eval {SELECT coalesce((select d from t1 where f in (select max(19) from t1 union select ~+max(t1.e) from t1)),b-case  -11 when 13 then t1.a-e else case when not exists(select 1 from t1 where c not in ( -t1.c,(t1.e),19)) and d+t1.b-t1.b in (select t1.a from t1 union select t1.d from t1) then 19+19*(t1.f) when t1.b<=a then 17 else t1.a end end+t1.b)*t1.a FROM t1 WHERE (select +cast(avg(~13+(select count(*) from t1)) AS integer)++min(case when (not d<>a) then coalesce((select t1.b from t1 where t1.f not between e and t1.d),13)+13 when t1.d not between 11 and t1.d then 17 else f end) | count(*) | ~count(distinct t1.e) | cast(avg(e) AS integer)-max(t1.d) from t1) not between coalesce((select case t1.a when a then e else 17 end from t1 where t1.a in (t1.e,11,( -t1.d))), -(b)) and t1.a}
+} {}
+do_test randexpr-2.398 {
+  db eval {SELECT coalesce((select d from t1 where f in (select max(19) from t1 union select ~+max(t1.e) from t1)),b-case  -11 when 13 then t1.a-e else case when not exists(select 1 from t1 where c not in ( -t1.c,(t1.e),19)) and d+t1.b-t1.b in (select t1.a from t1 union select t1.d from t1) then 19+19*(t1.f) when t1.b<=a then 17 else t1.a end end+t1.b)*t1.a FROM t1 WHERE NOT ((select +cast(avg(~13+(select count(*) from t1)) AS integer)++min(case when (not d<>a) then coalesce((select t1.b from t1 where t1.f not between e and t1.d),13)+13 when t1.d not between 11 and t1.d then 17 else f end) | count(*) | ~count(distinct t1.e) | cast(avg(e) AS integer)-max(t1.d) from t1) not between coalesce((select case t1.a when a then e else 17 end from t1 where t1.a in (t1.e,11,( -t1.d))), -(b)) and t1.a)}
+} {30000}
+do_test randexpr-2.399 {
+  db eval {SELECT (abs(c)/abs((coalesce((select t1.d from t1 where ((19) in (select count(distinct  - -(abs(coalesce((select max(t1.e) from t1 where t1.c*t1.a | t1.d=t1.d or t1.f in (select min(t1.f)-cast(avg(e) AS integer) from t1 union select  -count(*) from t1)),c))/abs(a))) from t1 union select case cast(avg(c) AS integer)-abs( -((count(*))))*(count(*))*min(d) when cast(avg(a) AS integer) then count(distinct 11) else count(*) end-(count(distinct 17)) from t1))),a))))*t1.e FROM t1 WHERE case when a between  -t1.a+(t1.c) and c-case when (~+t1.b-~case when t1.a not between 19*11 and 11 then t1.a when 11=f and  -t1.d not between t1.a and d then e else b end in (select min(19) from t1 union select case count(distinct 17) when count(*) then count(distinct t1.f) else min(c) end from t1)) then t1.f else 17 end then 17 else 13 end in (t1.a,t1.d,a)}
+} {}
+do_test randexpr-2.400 {
+  db eval {SELECT (abs(c)/abs((coalesce((select t1.d from t1 where ((19) in (select count(distinct  - -(abs(coalesce((select max(t1.e) from t1 where t1.c*t1.a | t1.d=t1.d or t1.f in (select min(t1.f)-cast(avg(e) AS integer) from t1 union select  -count(*) from t1)),c))/abs(a))) from t1 union select case cast(avg(c) AS integer)-abs( -((count(*))))*(count(*))*min(d) when cast(avg(a) AS integer) then count(distinct 11) else count(*) end-(count(distinct 17)) from t1))),a))))*t1.e FROM t1 WHERE NOT (case when a between  -t1.a+(t1.c) and c-case when (~+t1.b-~case when t1.a not between 19*11 and 11 then t1.a when 11=f and  -t1.d not between t1.a and d then e else b end in (select min(19) from t1 union select case count(distinct 17) when count(*) then count(distinct t1.f) else min(c) end from t1)) then t1.f else 17 end then 17 else 13 end in (t1.a,t1.d,a))}
+} {1500}
+do_test randexpr-2.401 {
+  db eval {SELECT (abs(c)/abs((coalesce((select t1.d from t1 where ((19) in (select count(distinct  - -(abs(coalesce((select max(t1.e) from t1 where t1.c*t1.a & t1.d=t1.d or t1.f in (select min(t1.f)-cast(avg(e) AS integer) from t1 union select  -count(*) from t1)),c))/abs(a))) from t1 union select case cast(avg(c) AS integer)-abs( -((count(*))))*(count(*))*min(d) when cast(avg(a) AS integer) then count(distinct 11) else count(*) end-(count(distinct 17)) from t1))),a))))*t1.e FROM t1 WHERE NOT (case when a between  -t1.a+(t1.c) and c-case when (~+t1.b-~case when t1.a not between 19*11 and 11 then t1.a when 11=f and  -t1.d not between t1.a and d then e else b end in (select min(19) from t1 union select case count(distinct 17) when count(*) then count(distinct t1.f) else min(c) end from t1)) then t1.f else 17 end then 17 else 13 end in (t1.a,t1.d,a))}
+} {1500}
+do_test randexpr-2.402 {
+  db eval {SELECT case when d=c-(select (~max(t1.f*t1.c-11)) from t1) then coalesce((select max(19) from t1 where 13<coalesce((select case when (select count(distinct t1.f+13) from t1)>d then t1.e when not not exists(select 1 from t1 where t1.c not in (a,a,t1.d) and d not between b and 19) then t1.a else 11 end*f-f from t1 where t1.f between e and e and d between 19 and t1.e or 11<>t1.a),t1.c)),d) else 17 end FROM t1 WHERE (t1.e=11)}
+} {}
+do_test randexpr-2.403 {
+  db eval {SELECT case when d=c-(select (~max(t1.f*t1.c-11)) from t1) then coalesce((select max(19) from t1 where 13<coalesce((select case when (select count(distinct t1.f+13) from t1)>d then t1.e when not not exists(select 1 from t1 where t1.c not in (a,a,t1.d) and d not between b and 19) then t1.a else 11 end*f-f from t1 where t1.f between e and e and d between 19 and t1.e or 11<>t1.a),t1.c)),d) else 17 end FROM t1 WHERE NOT ((t1.e=11))}
+} {17}
+do_test randexpr-2.404 {
+  db eval {SELECT case when t1.a-t1.a | case when (abs(t1.d)/abs(t1.c | t1.a))<>t1.e then e*+t1.c-t1.d*coalesce((select t1.b from t1 where b>=+d+ -e*11),11)+t1.b | t1.f when not exists(select 1 from t1 where d not in (17,e,d)) then 11 else t1.d end>=13 then 11 when d=c then a else f end FROM t1 WHERE (abs(case when not t1.d<=t1.f and not t1.d not between  -f and  -17-11*t1.d and (13<t1.b) and 17 in (select min(c)-+min(13)-min(t1.b) from t1 union select  -max((( -11))) from t1) then 13 when c<>d then t1.d*coalesce((select max(t1.a) from t1 where (17) not between (t1.b) and 11),d) else t1.d end)/abs(f)) not between 13 and 19}
+} {11}
+do_test randexpr-2.405 {
+  db eval {SELECT case when t1.a-t1.a | case when (abs(t1.d)/abs(t1.c | t1.a))<>t1.e then e*+t1.c-t1.d*coalesce((select t1.b from t1 where b>=+d+ -e*11),11)+t1.b | t1.f when not exists(select 1 from t1 where d not in (17,e,d)) then 11 else t1.d end>=13 then 11 when d=c then a else f end FROM t1 WHERE NOT ((abs(case when not t1.d<=t1.f and not t1.d not between  -f and  -17-11*t1.d and (13<t1.b) and 17 in (select min(c)-+min(13)-min(t1.b) from t1 union select  -max((( -11))) from t1) then 13 when c<>d then t1.d*coalesce((select max(t1.a) from t1 where (17) not between (t1.b) and 11),d) else t1.d end)/abs(f)) not between 13 and 19)}
+} {}
+do_test randexpr-2.406 {
+  db eval {SELECT case when t1.a-t1.a & case when (abs(t1.d)/abs(t1.c & t1.a))<>t1.e then e*+t1.c-t1.d*coalesce((select t1.b from t1 where b>=+d+ -e*11),11)+t1.b & t1.f when not exists(select 1 from t1 where d not in (17,e,d)) then 11 else t1.d end>=13 then 11 when d=c then a else f end FROM t1 WHERE (abs(case when not t1.d<=t1.f and not t1.d not between  -f and  -17-11*t1.d and (13<t1.b) and 17 in (select min(c)-+min(13)-min(t1.b) from t1 union select  -max((( -11))) from t1) then 13 when c<>d then t1.d*coalesce((select max(t1.a) from t1 where (17) not between (t1.b) and 11),d) else t1.d end)/abs(f)) not between 13 and 19}
+} {600}
+do_test randexpr-2.407 {
+  db eval {SELECT coalesce((select t1.f*13 from t1 where exists(select 1 from t1 where 13<=t1.e)),(abs(+ -17)/abs(c))) FROM t1 WHERE coalesce((select 17 from t1 where 11>++a-~t1.a+d | (19)),(abs(t1.c)/abs(case when case t1.c*17-case when b not between t1.b and f then t1.a when f>=a then 19 else 13 end when 19 then 13 else t1.f end not between c and a then c else 13 end)))> -e or 13 between f and c and t1.e>=b}
+} {7800}
+do_test randexpr-2.408 {
+  db eval {SELECT coalesce((select t1.f*13 from t1 where exists(select 1 from t1 where 13<=t1.e)),(abs(+ -17)/abs(c))) FROM t1 WHERE NOT (coalesce((select 17 from t1 where 11>++a-~t1.a+d | (19)),(abs(t1.c)/abs(case when case t1.c*17-case when b not between t1.b and f then t1.a when f>=a then 19 else 13 end when 19 then 13 else t1.f end not between c and a then c else 13 end)))> -e or 13 between f and c and t1.e>=b)}
+} {}
+do_test randexpr-2.409 {
+  db eval {SELECT ~+coalesce((select (select count(distinct +coalesce((select c from t1 where e>=13),+c)-t1.c) from t1) from t1 where case a when t1.d*(select cast(avg(case when t1.b*coalesce((select 17 from t1 where case  -a when t1.b then d else (t1.f) end not in ((t1.e),a,t1.f)),t1.c)-c in (d,a,t1.c) then c else b end) AS integer) from t1)+t1.d then 13 else t1.e end not in (19,a,17)),13) FROM t1 WHERE +c in (a,17,t1.d)}
+} {}
+do_test randexpr-2.410 {
+  db eval {SELECT ~+coalesce((select (select count(distinct +coalesce((select c from t1 where e>=13),+c)-t1.c) from t1) from t1 where case a when t1.d*(select cast(avg(case when t1.b*coalesce((select 17 from t1 where case  -a when t1.b then d else (t1.f) end not in ((t1.e),a,t1.f)),t1.c)-c in (d,a,t1.c) then c else b end) AS integer) from t1)+t1.d then 13 else t1.e end not in (19,a,17)),13) FROM t1 WHERE NOT (+c in (a,17,t1.d))}
+} {-2}
+do_test randexpr-2.411 {
+  db eval {SELECT f-coalesce((select t1.d from t1 where t1.a>11+t1.d),coalesce((select coalesce((select t1.d from t1 where 17>=d or (case c when t1.c then (t1.c) else t1.e end in (b,17,17) or t1.b>=t1.a) or t1.b<=e),case d when (19) then t1.d else t1.a end)-t1.d from t1 where 13 in (select ( -count(distinct (e)) | cast(avg(t1.d) AS integer)*count(*))+max( -11) | max( -c) from t1 union select count(distinct 11) from t1)),a)) FROM t1 WHERE not b<=13 or (coalesce((select max(t1.b) from t1 where b in (case when not a<>13 then 17 when  -(select ~abs( -(max(f))+count(distinct t1.a)) from t1)+13>=t1.b then case c when t1.a then d else f end-c else t1.d end-19, -t1.d,f)),19)) not in (t1.a,c,t1.d) or t1.e>t1.f}
+} {500}
+do_test randexpr-2.412 {
+  db eval {SELECT f-coalesce((select t1.d from t1 where t1.a>11+t1.d),coalesce((select coalesce((select t1.d from t1 where 17>=d or (case c when t1.c then (t1.c) else t1.e end in (b,17,17) or t1.b>=t1.a) or t1.b<=e),case d when (19) then t1.d else t1.a end)-t1.d from t1 where 13 in (select ( -count(distinct (e)) | cast(avg(t1.d) AS integer)*count(*))+max( -11) | max( -c) from t1 union select count(distinct 11) from t1)),a)) FROM t1 WHERE NOT (not b<=13 or (coalesce((select max(t1.b) from t1 where b in (case when not a<>13 then 17 when  -(select ~abs( -(max(f))+count(distinct t1.a)) from t1)+13>=t1.b then case c when t1.a then d else f end-c else t1.d end-19, -t1.d,f)),19)) not in (t1.a,c,t1.d) or t1.e>t1.f)}
+} {}
+do_test randexpr-2.413 {
+  db eval {SELECT f-coalesce((select t1.d from t1 where t1.a>11+t1.d),coalesce((select coalesce((select t1.d from t1 where 17>=d or (case c when t1.c then (t1.c) else t1.e end in (b,17,17) or t1.b>=t1.a) or t1.b<=e),case d when (19) then t1.d else t1.a end)-t1.d from t1 where 13 in (select ( -count(distinct (e)) & cast(avg(t1.d) AS integer)*count(*))+max( -11) & max( -c) from t1 union select count(distinct 11) from t1)),a)) FROM t1 WHERE not b<=13 or (coalesce((select max(t1.b) from t1 where b in (case when not a<>13 then 17 when  -(select ~abs( -(max(f))+count(distinct t1.a)) from t1)+13>=t1.b then case c when t1.a then d else f end-c else t1.d end-19, -t1.d,f)),19)) not in (t1.a,c,t1.d) or t1.e>t1.f}
+} {500}
+do_test randexpr-2.414 {
+  db eval {SELECT coalesce((select e from t1 where (coalesce((select max(+e+e*11*t1.c-e) from t1 where exists(select 1 from t1 where (19<=~t1.f))),case (abs(t1.c)/abs(case t1.c when 19 then f*~case when t1.e+t1.d between  -t1.f and (d) then b when (d=a) then t1.e else e end else c end*t1.a)) | f when (d) then 17 else t1.f end)<t1.c)),13) FROM t1 WHERE a>coalesce((select coalesce((select e from t1 where case when  -d+t1.e>e then coalesce((select d+b from t1 where exists(select 1 from t1 where not 13-b not in (f,a,d)) and (t1.b between (a) and t1.c)),c) when a=13 then t1.e else a end in (select t1.d from t1 union select t1.d from t1) and e not in (d, -19,11)),d) from t1 where not f in (t1.a,19,t1.d)),t1.d)}
+} {}
+do_test randexpr-2.415 {
+  db eval {SELECT coalesce((select e from t1 where (coalesce((select max(+e+e*11*t1.c-e) from t1 where exists(select 1 from t1 where (19<=~t1.f))),case (abs(t1.c)/abs(case t1.c when 19 then f*~case when t1.e+t1.d between  -t1.f and (d) then b when (d=a) then t1.e else e end else c end*t1.a)) | f when (d) then 17 else t1.f end)<t1.c)),13) FROM t1 WHERE NOT (a>coalesce((select coalesce((select e from t1 where case when  -d+t1.e>e then coalesce((select d+b from t1 where exists(select 1 from t1 where not 13-b not in (f,a,d)) and (t1.b between (a) and t1.c)),c) when a=13 then t1.e else a end in (select t1.d from t1 union select t1.d from t1) and e not in (d, -19,11)),d) from t1 where not f in (t1.a,19,t1.d)),t1.d))}
+} {13}
+do_test randexpr-2.416 {
+  db eval {SELECT coalesce((select e from t1 where (coalesce((select max(+e+e*11*t1.c-e) from t1 where exists(select 1 from t1 where (19<=~t1.f))),case (abs(t1.c)/abs(case t1.c when 19 then f*~case when t1.e+t1.d between  -t1.f and (d) then b when (d=a) then t1.e else e end else c end*t1.a)) & f when (d) then 17 else t1.f end)<t1.c)),13) FROM t1 WHERE NOT (a>coalesce((select coalesce((select e from t1 where case when  -d+t1.e>e then coalesce((select d+b from t1 where exists(select 1 from t1 where not 13-b not in (f,a,d)) and (t1.b between (a) and t1.c)),c) when a=13 then t1.e else a end in (select t1.d from t1 union select t1.d from t1) and e not in (d, -19,11)),d) from t1 where not f in (t1.a,19,t1.d)),t1.d))}
+} {13}
+do_test randexpr-2.417 {
+  db eval {SELECT (select count(distinct 11-17-11) from t1)-coalesce((select (abs(13)/abs(t1.b-c*11+coalesce((select max(f) from t1 where t1.a>t1.a),(e))*case when (abs(e)/abs(t1.b)) not between ~f and t1.e then c else (abs(t1.b)/abs(t1.d)) end | 13+b | b+t1.e)) from t1 where t1.c in (select t1.c from t1 union select (a) from t1)),19) FROM t1 WHERE t1.f>=19}
+} {1}
+do_test randexpr-2.418 {
+  db eval {SELECT (select count(distinct 11-17-11) from t1)-coalesce((select (abs(13)/abs(t1.b-c*11+coalesce((select max(f) from t1 where t1.a>t1.a),(e))*case when (abs(e)/abs(t1.b)) not between ~f and t1.e then c else (abs(t1.b)/abs(t1.d)) end | 13+b | b+t1.e)) from t1 where t1.c in (select t1.c from t1 union select (a) from t1)),19) FROM t1 WHERE NOT (t1.f>=19)}
+} {}
+do_test randexpr-2.419 {
+  db eval {SELECT (select count(distinct 11-17-11) from t1)-coalesce((select (abs(13)/abs(t1.b-c*11+coalesce((select max(f) from t1 where t1.a>t1.a),(e))*case when (abs(e)/abs(t1.b)) not between ~f and t1.e then c else (abs(t1.b)/abs(t1.d)) end & 13+b & b+t1.e)) from t1 where t1.c in (select t1.c from t1 union select (a) from t1)),19) FROM t1 WHERE t1.f>=19}
+} {1}
+do_test randexpr-2.420 {
+  db eval {SELECT coalesce((select max(case when 11+(select +abs(count(*)) from t1) not in (case when (case when not exists(select 1 from t1 where t1.d=f) then a else a end+11 in (select ((13)) from t1 union select t1.d from t1)) then (abs(t1.c)/abs(t1.b)) when a>=t1.c then b else f end,t1.a,c) then t1.a when b in (select cast(avg(t1.a) AS integer) | ~ -count(distinct 17) from t1 union select min(c) from t1) then b else  -t1.e end) from t1 where d not between c and  -t1.b and b=d and b between 13 and t1.c),(17)) FROM t1 WHERE t1.a in (coalesce((select max(e) from t1 where case case (select count(*) from t1)-~19 when t1.f*t1.d+coalesce((select max((select + -(((min(t1.b)))) |  -(count(distinct t1.c)) | count(*) from t1)*11) from t1 where f>=case when d in ((d),t1.d,13) then 19 when 17=17 then 11 else a end),t1.e) then c else t1.f end when t1.e then f else t1.d end in (13,(13),c)),t1.d),t1.e,a)}
+} {17}
+do_test randexpr-2.421 {
+  db eval {SELECT coalesce((select max(case when 11+(select +abs(count(*)) from t1) not in (case when (case when not exists(select 1 from t1 where t1.d=f) then a else a end+11 in (select ((13)) from t1 union select t1.d from t1)) then (abs(t1.c)/abs(t1.b)) when a>=t1.c then b else f end,t1.a,c) then t1.a when b in (select cast(avg(t1.a) AS integer) | ~ -count(distinct 17) from t1 union select min(c) from t1) then b else  -t1.e end) from t1 where d not between c and  -t1.b and b=d and b between 13 and t1.c),(17)) FROM t1 WHERE NOT (t1.a in (coalesce((select max(e) from t1 where case case (select count(*) from t1)-~19 when t1.f*t1.d+coalesce((select max((select + -(((min(t1.b)))) |  -(count(distinct t1.c)) | count(*) from t1)*11) from t1 where f>=case when d in ((d),t1.d,13) then 19 when 17=17 then 11 else a end),t1.e) then c else t1.f end when t1.e then f else t1.d end in (13,(13),c)),t1.d),t1.e,a))}
+} {}
+do_test randexpr-2.422 {
+  db eval {SELECT coalesce((select max(case when 11+(select +abs(count(*)) from t1) not in (case when (case when not exists(select 1 from t1 where t1.d=f) then a else a end+11 in (select ((13)) from t1 union select t1.d from t1)) then (abs(t1.c)/abs(t1.b)) when a>=t1.c then b else f end,t1.a,c) then t1.a when b in (select cast(avg(t1.a) AS integer) & ~ -count(distinct 17) from t1 union select min(c) from t1) then b else  -t1.e end) from t1 where d not between c and  -t1.b and b=d and b between 13 and t1.c),(17)) FROM t1 WHERE t1.a in (coalesce((select max(e) from t1 where case case (select count(*) from t1)-~19 when t1.f*t1.d+coalesce((select max((select + -(((min(t1.b)))) |  -(count(distinct t1.c)) | count(*) from t1)*11) from t1 where f>=case when d in ((d),t1.d,13) then 19 when 17=17 then 11 else a end),t1.e) then c else t1.f end when t1.e then f else t1.d end in (13,(13),c)),t1.d),t1.e,a)}
+} {17}
+do_test randexpr-2.423 {
+  db eval {SELECT coalesce((select t1.a-case t1.a when c then coalesce((select case (abs(11-(abs(t1.b)/abs(t1.a)))/abs((abs(t1.c)/abs(t1.a))))-t1.f when t1.d then f else 19 end from t1 where +t1.b*a in (select t1.e from t1 union select c from t1) and e between d and 11),t1.b) else a end from t1 where exists(select 1 from t1 where ((a in (13,c,d)))) and  -t1.e in ((t1.d),t1.a,t1.b)),t1.c) FROM t1 WHERE ++e*19 in (case when case when not (d<>case when  -case when (t1.a not between b and  -e) then 17 when f<>a then  -t1.d else t1.a end not in (a,a,c) then b when b<=c then e else b end) then 19 when (t1.b not in ( -13,t1.a,a)) then t1.b | 13 else e end* -19*t1.a<t1.f then t1.c when t1.f=t1.f then t1.a else t1.b end+d,a,11)}
+} {}
+do_test randexpr-2.424 {
+  db eval {SELECT coalesce((select t1.a-case t1.a when c then coalesce((select case (abs(11-(abs(t1.b)/abs(t1.a)))/abs((abs(t1.c)/abs(t1.a))))-t1.f when t1.d then f else 19 end from t1 where +t1.b*a in (select t1.e from t1 union select c from t1) and e between d and 11),t1.b) else a end from t1 where exists(select 1 from t1 where ((a in (13,c,d)))) and  -t1.e in ((t1.d),t1.a,t1.b)),t1.c) FROM t1 WHERE NOT (++e*19 in (case when case when not (d<>case when  -case when (t1.a not between b and  -e) then 17 when f<>a then  -t1.d else t1.a end not in (a,a,c) then b when b<=c then e else b end) then 19 when (t1.b not in ( -13,t1.a,a)) then t1.b | 13 else e end* -19*t1.a<t1.f then t1.c when t1.f=t1.f then t1.a else t1.b end+d,a,11))}
+} {300}
+do_test randexpr-2.425 {
+  db eval {SELECT (abs(e-((coalesce((select max(t1.c) from t1 where t1.f-a-case coalesce((select max(d) from t1 where (13<>~19)),f) when a- -t1.a | t1.f then t1.a*11-t1.e else coalesce((select max(t1.b) from t1 where not exists(select 1 from t1 where 17=t1.a or b>=f)),c) | t1.b end>19),t1.a))+c)-t1.c*e)/abs(t1.d)) FROM t1 WHERE a-t1.b not in (a,a-19-c | t1.d-d | e*t1.c*b,t1.e+t1.a)}
+} {375}
+do_test randexpr-2.426 {
+  db eval {SELECT (abs(e-((coalesce((select max(t1.c) from t1 where t1.f-a-case coalesce((select max(d) from t1 where (13<>~19)),f) when a- -t1.a | t1.f then t1.a*11-t1.e else coalesce((select max(t1.b) from t1 where not exists(select 1 from t1 where 17=t1.a or b>=f)),c) | t1.b end>19),t1.a))+c)-t1.c*e)/abs(t1.d)) FROM t1 WHERE NOT (a-t1.b not in (a,a-19-c | t1.d-d | e*t1.c*b,t1.e+t1.a))}
+} {}
+do_test randexpr-2.427 {
+  db eval {SELECT (abs(e-((coalesce((select max(t1.c) from t1 where t1.f-a-case coalesce((select max(d) from t1 where (13<>~19)),f) when a- -t1.a & t1.f then t1.a*11-t1.e else coalesce((select max(t1.b) from t1 where not exists(select 1 from t1 where 17=t1.a or b>=f)),c) & t1.b end>19),t1.a))+c)-t1.c*e)/abs(t1.d)) FROM t1 WHERE a-t1.b not in (a,a-19-c | t1.d-d | e*t1.c*b,t1.e+t1.a)}
+} {375}
+do_test randexpr-2.428 {
+  db eval {SELECT t1.b-coalesce((select t1.a from t1 where (d<=f)),~~case b when coalesce((select coalesce((select t1.c from t1 where a+~+~(abs(t1.d)/abs(17)) |  -d*a*(b++ -13)*b>=b),17) | a from t1 where a<a),17)-13 then 11 else t1.a end) FROM t1 WHERE  -coalesce((select (abs(t1.d)/abs(~t1.e))-a from t1 where (c>=coalesce((select t1.d+(select case min(a) | max(t1.b) when max(e) then count(*) else  -count(distinct f) end from t1)-t1.f+( - - -19) from t1 where t1.c in (select 19 from t1 union select 17 from t1)),11))),19)+11 not in ((b),e,e) or t1.e in (select min(t1.f) from t1 union select count(*)- -(cast(avg(17) AS integer)) from t1) or e>=t1.c}
+} {100}
+do_test randexpr-2.429 {
+  db eval {SELECT t1.b-coalesce((select t1.a from t1 where (d<=f)),~~case b when coalesce((select coalesce((select t1.c from t1 where a+~+~(abs(t1.d)/abs(17)) |  -d*a*(b++ -13)*b>=b),17) | a from t1 where a<a),17)-13 then 11 else t1.a end) FROM t1 WHERE NOT ( -coalesce((select (abs(t1.d)/abs(~t1.e))-a from t1 where (c>=coalesce((select t1.d+(select case min(a) | max(t1.b) when max(e) then count(*) else  -count(distinct f) end from t1)-t1.f+( - - -19) from t1 where t1.c in (select 19 from t1 union select 17 from t1)),11))),19)+11 not in ((b),e,e) or t1.e in (select min(t1.f) from t1 union select count(*)- -(cast(avg(17) AS integer)) from t1) or e>=t1.c)}
+} {}
+do_test randexpr-2.430 {
+  db eval {SELECT t1.b-coalesce((select t1.a from t1 where (d<=f)),~~case b when coalesce((select coalesce((select t1.c from t1 where a+~+~(abs(t1.d)/abs(17)) &  -d*a*(b++ -13)*b>=b),17) & a from t1 where a<a),17)-13 then 11 else t1.a end) FROM t1 WHERE  -coalesce((select (abs(t1.d)/abs(~t1.e))-a from t1 where (c>=coalesce((select t1.d+(select case min(a) | max(t1.b) when max(e) then count(*) else  -count(distinct f) end from t1)-t1.f+( - - -19) from t1 where t1.c in (select 19 from t1 union select 17 from t1)),11))),19)+11 not in ((b),e,e) or t1.e in (select min(t1.f) from t1 union select count(*)- -(cast(avg(17) AS integer)) from t1) or e>=t1.c}
+} {100}
+do_test randexpr-2.431 {
+  db eval {SELECT coalesce((select max(case when e<=t1.d then f*+case 17 when 17 then (abs((select abs(cast(avg(13) AS integer)+min(t1.b)) from t1))/abs(t1.c)) else d end*t1.c else a end) from t1 where coalesce((select t1.c from t1 where a<>t1.e+f-t1.c-a),+t1.a)+t1.d*case when d in (select t1.c from t1 union select 11 from t1) then a when 19 not in (d,e,b) then 11 else 19 end | t1.b in (select 19 from t1 union select t1.a from t1)),17)*11 FROM t1 WHERE 17>=t1.b}
+} {}
+do_test randexpr-2.432 {
+  db eval {SELECT coalesce((select max(case when e<=t1.d then f*+case 17 when 17 then (abs((select abs(cast(avg(13) AS integer)+min(t1.b)) from t1))/abs(t1.c)) else d end*t1.c else a end) from t1 where coalesce((select t1.c from t1 where a<>t1.e+f-t1.c-a),+t1.a)+t1.d*case when d in (select t1.c from t1 union select 11 from t1) then a when 19 not in (d,e,b) then 11 else 19 end | t1.b in (select 19 from t1 union select t1.a from t1)),17)*11 FROM t1 WHERE NOT (17>=t1.b)}
+} {187}
+do_test randexpr-2.433 {
+  db eval {SELECT coalesce((select max(case when e<=t1.d then f*+case 17 when 17 then (abs((select abs(cast(avg(13) AS integer)+min(t1.b)) from t1))/abs(t1.c)) else d end*t1.c else a end) from t1 where coalesce((select t1.c from t1 where a<>t1.e+f-t1.c-a),+t1.a)+t1.d*case when d in (select t1.c from t1 union select 11 from t1) then a when 19 not in (d,e,b) then 11 else 19 end & t1.b in (select 19 from t1 union select t1.a from t1)),17)*11 FROM t1 WHERE NOT (17>=t1.b)}
+} {187}
+do_test randexpr-2.434 {
+  db eval {SELECT case when coalesce((select max(case f when (abs(t1.d)/abs(case when +~e not in (t1.d,c,t1.a) or 17 in (select count(distinct  -b) from t1 union select count(distinct d) from t1) and d<=t1.b or b>(f) then coalesce((select c from t1 where t1.f<t1.e),e)+(d) when 17<19 then t1.c else t1.b end)) then t1.b else f end) from t1 where (17 not between 11 and t1.b) or t1.f>f or t1.b<> -t1.c), -t1.d)<11 then c else f end FROM t1 WHERE not exists(select 1 from t1 where exists(select 1 from t1 where case  -case when case t1.c-t1.b-e when t1.b then t1.e else  -t1.c+~17 | coalesce((select max(t1.c) from t1 where 19 not between  -(a)-t1.c and 17),t1.c) end in (select (t1.f) from t1 union select b from t1) then e when c<>19 then t1.b else f end when  -11 then 11 else 19 end in ( -19,t1.a,d)) and not 17<t1.d)}
+} {600}
+do_test randexpr-2.435 {
+  db eval {SELECT case when coalesce((select max(case f when (abs(t1.d)/abs(case when +~e not in (t1.d,c,t1.a) or 17 in (select count(distinct  -b) from t1 union select count(distinct d) from t1) and d<=t1.b or b>(f) then coalesce((select c from t1 where t1.f<t1.e),e)+(d) when 17<19 then t1.c else t1.b end)) then t1.b else f end) from t1 where (17 not between 11 and t1.b) or t1.f>f or t1.b<> -t1.c), -t1.d)<11 then c else f end FROM t1 WHERE NOT (not exists(select 1 from t1 where exists(select 1 from t1 where case  -case when case t1.c-t1.b-e when t1.b then t1.e else  -t1.c+~17 | coalesce((select max(t1.c) from t1 where 19 not between  -(a)-t1.c and 17),t1.c) end in (select (t1.f) from t1 union select b from t1) then e when c<>19 then t1.b else f end when  -11 then 11 else 19 end in ( -19,t1.a,d)) and not 17<t1.d))}
+} {}
+do_test randexpr-2.436 {
+  db eval {SELECT ((select abs(min(t1.b-t1.b)-cast(avg((t1.d-t1.a*a) | (select max(t1.e-e) | max(17)*~abs(count(*)-cast(avg(coalesce((select t1.c from t1 where t1.c<=11),19)+ -e) AS integer) | max(t1.c)) | min(b) | (count(*))*min(19)- -count(*) | (cast(avg(b) AS integer)) from t1)) AS integer)-cast(avg(t1.b) AS integer)) from t1)) FROM t1 WHERE +b+(19*19)+c+t1.d<=e-19+case 13 when t1.f+~11+(select cast(avg(t1.e) AS integer) from t1) then (case when not exists(select 1 from t1 where t1.a between d and t1.b) then case c when d then d else t1.f end when not t1.b in (11,t1.c,t1.d) or t1.c<=(d) then (t1.a) else t1.b end) else  -e end or f in (t1.f,d,t1.c)}
+} {7995}
+do_test randexpr-2.437 {
+  db eval {SELECT ((select abs(min(t1.b-t1.b)-cast(avg((t1.d-t1.a*a) | (select max(t1.e-e) | max(17)*~abs(count(*)-cast(avg(coalesce((select t1.c from t1 where t1.c<=11),19)+ -e) AS integer) | max(t1.c)) | min(b) | (count(*))*min(19)- -count(*) | (cast(avg(b) AS integer)) from t1)) AS integer)-cast(avg(t1.b) AS integer)) from t1)) FROM t1 WHERE NOT (+b+(19*19)+c+t1.d<=e-19+case 13 when t1.f+~11+(select cast(avg(t1.e) AS integer) from t1) then (case when not exists(select 1 from t1 where t1.a between d and t1.b) then case c when d then d else t1.f end when not t1.b in (11,t1.c,t1.d) or t1.c<=(d) then (t1.a) else t1.b end) else  -e end or f in (t1.f,d,t1.c))}
+} {}
+do_test randexpr-2.438 {
+  db eval {SELECT ((select abs(min(t1.b-t1.b)-cast(avg((t1.d-t1.a*a) & (select max(t1.e-e) & max(17)*~abs(count(*)-cast(avg(coalesce((select t1.c from t1 where t1.c<=11),19)+ -e) AS integer) & max(t1.c)) & min(b) & (count(*))*min(19)- -count(*) & (cast(avg(b) AS integer)) from t1)) AS integer)-cast(avg(t1.b) AS integer)) from t1)) FROM t1 WHERE +b+(19*19)+c+t1.d<=e-19+case 13 when t1.f+~11+(select cast(avg(t1.e) AS integer) from t1) then (case when not exists(select 1 from t1 where t1.a between d and t1.b) then case c when d then d else t1.f end when not t1.b in (11,t1.c,t1.d) or t1.c<=(d) then (t1.a) else t1.b end) else  -e end or f in (t1.f,d,t1.c)}
+} {200}
+do_test randexpr-2.439 {
+  db eval {SELECT case when (b<coalesce((select coalesce((select max(19 | t1.c) from t1 where 13 not in (t1.f,e,t1.e) or (select (count(distinct coalesce((select d from t1 where t1.c between  -17 and b),11)) | count(*)-max(t1.d)* -(max(d))) from t1)-c*t1.e in (select 19 | f from t1 union select a from t1)),c)*a from t1 where (13 not between a and 19)),19) and b>a) then t1.f else t1.c end FROM t1 WHERE case when (((case coalesce((select  -t1.b-t1.b*19*c | 19 from t1 where (exists(select 1 from t1 where e>=t1.a))),t1.a)+11 when d then t1.e else t1.c end=t1.d))) then t1.b when not not exists(select 1 from t1 where t1.f<(t1.a)) and t1.d>=f or t1.c>t1.a or t1.b between t1.f and 19 then t1.c else ~t1.c end=11 or (t1.e) not between 13 and t1.c}
+} {600}
+do_test randexpr-2.440 {
+  db eval {SELECT case when (b<coalesce((select coalesce((select max(19 | t1.c) from t1 where 13 not in (t1.f,e,t1.e) or (select (count(distinct coalesce((select d from t1 where t1.c between  -17 and b),11)) | count(*)-max(t1.d)* -(max(d))) from t1)-c*t1.e in (select 19 | f from t1 union select a from t1)),c)*a from t1 where (13 not between a and 19)),19) and b>a) then t1.f else t1.c end FROM t1 WHERE NOT (case when (((case coalesce((select  -t1.b-t1.b*19*c | 19 from t1 where (exists(select 1 from t1 where e>=t1.a))),t1.a)+11 when d then t1.e else t1.c end=t1.d))) then t1.b when not not exists(select 1 from t1 where t1.f<(t1.a)) and t1.d>=f or t1.c>t1.a or t1.b between t1.f and 19 then t1.c else ~t1.c end=11 or (t1.e) not between 13 and t1.c)}
+} {}
+do_test randexpr-2.441 {
+  db eval {SELECT case when (b<coalesce((select coalesce((select max(19 & t1.c) from t1 where 13 not in (t1.f,e,t1.e) or (select (count(distinct coalesce((select d from t1 where t1.c between  -17 and b),11)) & count(*)-max(t1.d)* -(max(d))) from t1)-c*t1.e in (select 19 & f from t1 union select a from t1)),c)*a from t1 where (13 not between a and 19)),19) and b>a) then t1.f else t1.c end FROM t1 WHERE case when (((case coalesce((select  -t1.b-t1.b*19*c | 19 from t1 where (exists(select 1 from t1 where e>=t1.a))),t1.a)+11 when d then t1.e else t1.c end=t1.d))) then t1.b when not not exists(select 1 from t1 where t1.f<(t1.a)) and t1.d>=f or t1.c>t1.a or t1.b between t1.f and 19 then t1.c else ~t1.c end=11 or (t1.e) not between 13 and t1.c}
+} {300}
+do_test randexpr-2.442 {
+  db eval {SELECT case when not t1.d not in (coalesce((select 17 |  -coalesce((select (select min(a-t1.a+t1.a-t1.c*t1.e) from t1) from t1 where t1.d<=a),11) | 19 from t1 where not ( -13 in ( -t1.d,t1.d,19))),e)+11,11,13) then e when ((t1.b<t1.c) or d=19) then (t1.a) else a end FROM t1 WHERE exists(select 1 from t1 where not exists(select 1 from t1 where ~f-e+t1.b*d+case when coalesce((select max(d) from t1 where (t1.c*t1.b in (b,t1.e,17)) or t1.b not in (t1.c,t1.a,t1.c)), -17) in (select count(distinct 13) from t1 union select  - -~min( -11) | cast(avg(c) AS integer) from t1) then f else a end+e*t1.c+t1.c>t1.f and a>=17))}
+} {}
+do_test randexpr-2.443 {
+  db eval {SELECT case when not t1.d not in (coalesce((select 17 |  -coalesce((select (select min(a-t1.a+t1.a-t1.c*t1.e) from t1) from t1 where t1.d<=a),11) | 19 from t1 where not ( -13 in ( -t1.d,t1.d,19))),e)+11,11,13) then e when ((t1.b<t1.c) or d=19) then (t1.a) else a end FROM t1 WHERE NOT (exists(select 1 from t1 where not exists(select 1 from t1 where ~f-e+t1.b*d+case when coalesce((select max(d) from t1 where (t1.c*t1.b in (b,t1.e,17)) or t1.b not in (t1.c,t1.a,t1.c)), -17) in (select count(distinct 13) from t1 union select  - -~min( -11) | cast(avg(c) AS integer) from t1) then f else a end+e*t1.c+t1.c>t1.f and a>=17)))}
+} {100}
+do_test randexpr-2.444 {
+  db eval {SELECT case when not t1.d not in (coalesce((select 17 &  -coalesce((select (select min(a-t1.a+t1.a-t1.c*t1.e) from t1) from t1 where t1.d<=a),11) & 19 from t1 where not ( -13 in ( -t1.d,t1.d,19))),e)+11,11,13) then e when ((t1.b<t1.c) or d=19) then (t1.a) else a end FROM t1 WHERE NOT (exists(select 1 from t1 where not exists(select 1 from t1 where ~f-e+t1.b*d+case when coalesce((select max(d) from t1 where (t1.c*t1.b in (b,t1.e,17)) or t1.b not in (t1.c,t1.a,t1.c)), -17) in (select count(distinct 13) from t1 union select  - -~min( -11) | cast(avg(c) AS integer) from t1) then f else a end+e*t1.c+t1.c>t1.f and a>=17)))}
+} {100}
+do_test randexpr-2.445 {
+  db eval {SELECT e+c-(c)+t1.e*(abs(case when 13 in (select abs(max(17)*case  -count(*) when cast(avg(a) AS integer) then count(distinct b) else  -max(f) end | (cast(avg(t1.e) AS integer)) |  -min(f)) from t1 union select count(distinct d) from t1) and case when (t1.e+a> -(a)) then e when not c<t1.f or t1.d=f then e else t1.e end<=t1.f then  -a when t1.d<=13 then a else t1.b end)/abs( -t1.a))-t1.b+t1.b FROM t1 WHERE case when  -case when t1.f<t1.c then  -(t1.e) when 11 between e and coalesce((select c from t1 where not exists(select 1 from t1 where b>=e)),coalesce((select max(case t1.e when t1.c then t1.a else a end) from t1 where b>=t1.c and b<>t1.c),13)) then t1.b else a end<11 then b when (11 in (select a from t1 union select t1.b from t1)) or t1.b=e or a between a and 13 then t1.b else b end>19}
+} {1500}
+do_test randexpr-2.446 {
+  db eval {SELECT e+c-(c)+t1.e*(abs(case when 13 in (select abs(max(17)*case  -count(*) when cast(avg(a) AS integer) then count(distinct b) else  -max(f) end | (cast(avg(t1.e) AS integer)) |  -min(f)) from t1 union select count(distinct d) from t1) and case when (t1.e+a> -(a)) then e when not c<t1.f or t1.d=f then e else t1.e end<=t1.f then  -a when t1.d<=13 then a else t1.b end)/abs( -t1.a))-t1.b+t1.b FROM t1 WHERE NOT (case when  -case when t1.f<t1.c then  -(t1.e) when 11 between e and coalesce((select c from t1 where not exists(select 1 from t1 where b>=e)),coalesce((select max(case t1.e when t1.c then t1.a else a end) from t1 where b>=t1.c and b<>t1.c),13)) then t1.b else a end<11 then b when (11 in (select a from t1 union select t1.b from t1)) or t1.b=e or a between a and 13 then t1.b else b end>19)}
+} {}
+do_test randexpr-2.447 {
+  db eval {SELECT e+c-(c)+t1.e*(abs(case when 13 in (select abs(max(17)*case  -count(*) when cast(avg(a) AS integer) then count(distinct b) else  -max(f) end & (cast(avg(t1.e) AS integer)) &  -min(f)) from t1 union select count(distinct d) from t1) and case when (t1.e+a> -(a)) then e when not c<t1.f or t1.d=f then e else t1.e end<=t1.f then  -a when t1.d<=13 then a else t1.b end)/abs( -t1.a))-t1.b+t1.b FROM t1 WHERE case when  -case when t1.f<t1.c then  -(t1.e) when 11 between e and coalesce((select c from t1 where not exists(select 1 from t1 where b>=e)),coalesce((select max(case t1.e when t1.c then t1.a else a end) from t1 where b>=t1.c and b<>t1.c),13)) then t1.b else a end<11 then b when (11 in (select a from t1 union select t1.b from t1)) or t1.b=e or a between a and 13 then t1.b else b end>19}
+} {1500}
+do_test randexpr-2.448 {
+  db eval {SELECT 13-coalesce((select t1.a*a from t1 where not exists(select 1 from t1 where 17 not between case +coalesce((select  -case 19 when a*b then 19 else f end from t1 where (t1.d-t1.e between case f when (select abs(case abs( -min(13)) when min(t1.b) then  -(count(distinct f)) else min(t1.b) end) from t1) then 17*( -13) | f else t1.e end and  -t1.a)),d)*c when 13 then 11 else t1.a end and c)),t1.a)*19 FROM t1 WHERE ((not f-c<=(abs(a)/abs(+t1.a)) or t1.e not between coalesce((select 11 from t1 where  - -a*t1.d*case coalesce((select max(d) from t1 where ((t1.b<=t1.c))),case when f>t1.d or t1.d=t1.a or t1.c<=c then a else  -c end*t1.b) when (f) then 11 else 19 end-t1.a<=b),c) and 13))}
+} {-1887}
+do_test randexpr-2.449 {
+  db eval {SELECT 13-coalesce((select t1.a*a from t1 where not exists(select 1 from t1 where 17 not between case +coalesce((select  -case 19 when a*b then 19 else f end from t1 where (t1.d-t1.e between case f when (select abs(case abs( -min(13)) when min(t1.b) then  -(count(distinct f)) else min(t1.b) end) from t1) then 17*( -13) | f else t1.e end and  -t1.a)),d)*c when 13 then 11 else t1.a end and c)),t1.a)*19 FROM t1 WHERE NOT (((not f-c<=(abs(a)/abs(+t1.a)) or t1.e not between coalesce((select 11 from t1 where  - -a*t1.d*case coalesce((select max(d) from t1 where ((t1.b<=t1.c))),case when f>t1.d or t1.d=t1.a or t1.c<=c then a else  -c end*t1.b) when (f) then 11 else 19 end-t1.a<=b),c) and 13)))}
+} {}
+do_test randexpr-2.450 {
+  db eval {SELECT 13-coalesce((select t1.a*a from t1 where not exists(select 1 from t1 where 17 not between case +coalesce((select  -case 19 when a*b then 19 else f end from t1 where (t1.d-t1.e between case f when (select abs(case abs( -min(13)) when min(t1.b) then  -(count(distinct f)) else min(t1.b) end) from t1) then 17*( -13) & f else t1.e end and  -t1.a)),d)*c when 13 then 11 else t1.a end and c)),t1.a)*19 FROM t1 WHERE ((not f-c<=(abs(a)/abs(+t1.a)) or t1.e not between coalesce((select 11 from t1 where  - -a*t1.d*case coalesce((select max(d) from t1 where ((t1.b<=t1.c))),case when f>t1.d or t1.d=t1.a or t1.c<=c then a else  -c end*t1.b) when (f) then 11 else 19 end-t1.a<=b),c) and 13))}
+} {-1887}
+do_test randexpr-2.451 {
+  db eval {SELECT ~case when (t1.d | 17 in (b*t1.e,19*case when t1.d<= -a then t1.d*~t1.c*e*t1.c-19 else ~t1.b+17 end-d,(t1.c))) then +t1.d else (abs( -case t1.e when t1.c then (t1.b) else t1.f end-11+ -a)/abs(f))+a end FROM t1 WHERE not exists(select 1 from t1 where not c in (select case count(distinct (f)-19) when ~( -+~cast(avg(c) AS integer) | count(distinct 11)-max(d)+min(t1.a)+ -( -count(distinct b))+(count(*)))-count(*)+cast(avg(c) AS integer) then count(distinct d) else ((max(t1.b))) end-min(b) from t1 union select min(t1.c) from t1)) and t1.c in (select +d from t1 union select case when c+b=17 then a else 13 end+11 from t1)}
+} {}
+do_test randexpr-2.452 {
+  db eval {SELECT ~case when (t1.d | 17 in (b*t1.e,19*case when t1.d<= -a then t1.d*~t1.c*e*t1.c-19 else ~t1.b+17 end-d,(t1.c))) then +t1.d else (abs( -case t1.e when t1.c then (t1.b) else t1.f end-11+ -a)/abs(f))+a end FROM t1 WHERE NOT (not exists(select 1 from t1 where not c in (select case count(distinct (f)-19) when ~( -+~cast(avg(c) AS integer) | count(distinct 11)-max(d)+min(t1.a)+ -( -count(distinct b))+(count(*)))-count(*)+cast(avg(c) AS integer) then count(distinct d) else ((max(t1.b))) end-min(b) from t1 union select min(t1.c) from t1)) and t1.c in (select +d from t1 union select case when c+b=17 then a else 13 end+11 from t1))}
+} {-102}
+do_test randexpr-2.453 {
+  db eval {SELECT ~case when (t1.d & 17 in (b*t1.e,19*case when t1.d<= -a then t1.d*~t1.c*e*t1.c-19 else ~t1.b+17 end-d,(t1.c))) then +t1.d else (abs( -case t1.e when t1.c then (t1.b) else t1.f end-11+ -a)/abs(f))+a end FROM t1 WHERE NOT (not exists(select 1 from t1 where not c in (select case count(distinct (f)-19) when ~( -+~cast(avg(c) AS integer) | count(distinct 11)-max(d)+min(t1.a)+ -( -count(distinct b))+(count(*)))-count(*)+cast(avg(c) AS integer) then count(distinct d) else ((max(t1.b))) end-min(b) from t1 union select min(t1.c) from t1)) and t1.c in (select +d from t1 union select case when c+b=17 then a else 13 end+11 from t1))}
+} {-102}
+do_test randexpr-2.454 {
+  db eval {SELECT (select case case min(d) when abs(cast(avg((abs(a)/abs(coalesce((select (select abs(cast(avg(t1.f) AS integer)) from t1) from t1 where (case when t1.e in (select 11 from t1 union select 17 from t1) then  -t1.e- -t1.e else a end<>a) and not not exists(select 1 from t1 where t1.b in (select ~+max( -t1.b) | max(t1.c) from t1 union select count(distinct  -t1.a) from t1))),t1.a)))) AS integer)) then (count(*) | ((count(distinct b)))-count(*)) else min(11) end when max(a) then count(distinct f) else (min(17)) end from t1) FROM t1 WHERE coalesce((select max(13) from t1 where t1.b not in ( -case when 13 not between 17 and b then f when t1.e+~+e between coalesce((select max(case 19 when e then 17 else coalesce((select coalesce((select max(f) from t1 where exists(select 1 from t1 where t1.b not between t1.a and a)),e)*b*t1.f from t1 where t1.f>=t1.c),c) end) from t1 where e>b),t1.f) | f and f then c else 11 end,(c),t1.e)),19)-t1.c in (select t1.a from t1 union select e from t1)}
+} {}
+do_test randexpr-2.455 {
+  db eval {SELECT (select case case min(d) when abs(cast(avg((abs(a)/abs(coalesce((select (select abs(cast(avg(t1.f) AS integer)) from t1) from t1 where (case when t1.e in (select 11 from t1 union select 17 from t1) then  -t1.e- -t1.e else a end<>a) and not not exists(select 1 from t1 where t1.b in (select ~+max( -t1.b) | max(t1.c) from t1 union select count(distinct  -t1.a) from t1))),t1.a)))) AS integer)) then (count(*) | ((count(distinct b)))-count(*)) else min(11) end when max(a) then count(distinct f) else (min(17)) end from t1) FROM t1 WHERE NOT (coalesce((select max(13) from t1 where t1.b not in ( -case when 13 not between 17 and b then f when t1.e+~+e between coalesce((select max(case 19 when e then 17 else coalesce((select coalesce((select max(f) from t1 where exists(select 1 from t1 where t1.b not between t1.a and a)),e)*b*t1.f from t1 where t1.f>=t1.c),c) end) from t1 where e>b),t1.f) | f and f then c else 11 end,(c),t1.e)),19)-t1.c in (select t1.a from t1 union select e from t1))}
+} {17}
+do_test randexpr-2.456 {
+  db eval {SELECT (select case case min(d) when abs(cast(avg((abs(a)/abs(coalesce((select (select abs(cast(avg(t1.f) AS integer)) from t1) from t1 where (case when t1.e in (select 11 from t1 union select 17 from t1) then  -t1.e- -t1.e else a end<>a) and not not exists(select 1 from t1 where t1.b in (select ~+max( -t1.b) & max(t1.c) from t1 union select count(distinct  -t1.a) from t1))),t1.a)))) AS integer)) then (count(*) & ((count(distinct b)))-count(*)) else min(11) end when max(a) then count(distinct f) else (min(17)) end from t1) FROM t1 WHERE NOT (coalesce((select max(13) from t1 where t1.b not in ( -case when 13 not between 17 and b then f when t1.e+~+e between coalesce((select max(case 19 when e then 17 else coalesce((select coalesce((select max(f) from t1 where exists(select 1 from t1 where t1.b not between t1.a and a)),e)*b*t1.f from t1 where t1.f>=t1.c),c) end) from t1 where e>b),t1.f) | f and f then c else 11 end,(c),t1.e)),19)-t1.c in (select t1.a from t1 union select e from t1))}
+} {17}
+do_test randexpr-2.457 {
+  db eval {SELECT (a*f+c | ~b*(select cast(avg(19) AS integer) from t1)+17*(select max(a*b-d) from t1)+(abs((select count(distinct b) from t1))/abs(case when  -13*c between t1.f and t1.c then c when not 17 between 17 and 11 and 17<=((t1.c)) then c else a end*t1.c))-a*a)-c FROM t1 WHERE exists(select 1 from t1 where t1.e-11+t1.d*e+(abs(coalesce((select max(t1.b) from t1 where 19-13- -coalesce((select c*t1.e+t1.f*f from t1 where not exists(select 1 from t1 where not exists(select 1 from t1 where (17<=d or  -11 in (select cast(avg(c) AS integer) from t1 union select +count(*) from t1))))),t1.b)<a),(t1.c)))/abs(t1.c))<=a or 13 between t1.e and  -t1.b)}
+} {}
+do_test randexpr-2.458 {
+  db eval {SELECT (a*f+c | ~b*(select cast(avg(19) AS integer) from t1)+17*(select max(a*b-d) from t1)+(abs((select count(distinct b) from t1))/abs(case when  -13*c between t1.f and t1.c then c when not 17 between 17 and 11 and 17<=((t1.c)) then c else a end*t1.c))-a*a)-c FROM t1 WHERE NOT (exists(select 1 from t1 where t1.e-11+t1.d*e+(abs(coalesce((select max(t1.b) from t1 where 19-13- -coalesce((select c*t1.e+t1.f*f from t1 where not exists(select 1 from t1 where not exists(select 1 from t1 where (17<=d or  -11 in (select cast(avg(c) AS integer) from t1 union select +count(*) from t1))))),t1.b)<a),(t1.c)))/abs(t1.c))<=a or 13 between t1.e and  -t1.b))}
+} {327281}
+do_test randexpr-2.459 {
+  db eval {SELECT (a*f+c & ~b*(select cast(avg(19) AS integer) from t1)+17*(select max(a*b-d) from t1)+(abs((select count(distinct b) from t1))/abs(case when  -13*c between t1.f and t1.c then c when not 17 between 17 and 11 and 17<=((t1.c)) then c else a end*t1.c))-a*a)-c FROM t1 WHERE NOT (exists(select 1 from t1 where t1.e-11+t1.d*e+(abs(coalesce((select max(t1.b) from t1 where 19-13- -coalesce((select c*t1.e+t1.f*f from t1 where not exists(select 1 from t1 where not exists(select 1 from t1 where (17<=d or  -11 in (select cast(avg(c) AS integer) from t1 union select +count(*) from t1))))),t1.b)<a),(t1.c)))/abs(t1.c))<=a or 13 between t1.e and  -t1.b))}
+} {51800}
+do_test randexpr-2.460 {
+  db eval {SELECT coalesce((select max(case when not ((select ((count(distinct t1.f)*(cast(avg(e) AS integer)))-min(t1.d)*min(t1.c)) from t1)*(select min(t1.d) from t1) not in ((select count(distinct b) from t1),f*d,19) and  -a in (t1.d,b,a)) and d>=t1.c or t1.b>t1.c or 19 not between c and t1.e then 17 else t1.b end) from t1 where (e<=t1.b)),11) FROM t1 WHERE t1.a in (f,t1.d*+a,t1.c* -(select (abs(case +(max(coalesce((select max((select count(*)-cast(avg(b) AS integer) from t1)) from t1 where (c<c)),b)-t1.d))+max(c)*+count(distinct coalesce((select max((17)) from t1 where d in (select 11 from t1 union select 17 from t1)),t1.e))*count(*) when ~count(*) then cast(avg(d) AS integer) else max(t1.a) end*count(distinct c))) from t1))}
+} {}
+do_test randexpr-2.461 {
+  db eval {SELECT coalesce((select max(case when not ((select ((count(distinct t1.f)*(cast(avg(e) AS integer)))-min(t1.d)*min(t1.c)) from t1)*(select min(t1.d) from t1) not in ((select count(distinct b) from t1),f*d,19) and  -a in (t1.d,b,a)) and d>=t1.c or t1.b>t1.c or 19 not between c and t1.e then 17 else t1.b end) from t1 where (e<=t1.b)),11) FROM t1 WHERE NOT (t1.a in (f,t1.d*+a,t1.c* -(select (abs(case +(max(coalesce((select max((select count(*)-cast(avg(b) AS integer) from t1)) from t1 where (c<c)),b)-t1.d))+max(c)*+count(distinct coalesce((select max((17)) from t1 where d in (select 11 from t1 union select 17 from t1)),t1.e))*count(*) when ~count(*) then cast(avg(d) AS integer) else max(t1.a) end*count(distinct c))) from t1)))}
+} {11}
+do_test randexpr-2.462 {
+  db eval {SELECT (case case when +c>e then case t1.d when 13 then t1.c else 19 end-13 else t1.e+coalesce((select max(19) from t1 where case when e in (+b,coalesce((select a+(11) from t1 where b not between c and d or t1.b not in (a,11,17)),b),11) then 19 when (c) not in (t1.c,t1.b,d) then t1.c else t1.d end*f not between t1.a and d),13) end when c then 11 else c end) FROM t1 WHERE 19 not between coalesce((select max(d*t1.c) from t1 where (select cast(avg((b)) AS integer) from t1) in (select ( - -(abs(case max(b) when cast(avg( -13-11) AS integer) then count(distinct a-e) else ~ -cast(avg((c)) AS integer)-min(17)+count(*) end) | (min(e)))-min((19))) from t1 union select count(distinct 13) from t1)),case when  -e | 19 between  -11 and f then 19 else 19 end) and (f)}
+} {}
+do_test randexpr-2.463 {
+  db eval {SELECT (case case when +c>e then case t1.d when 13 then t1.c else 19 end-13 else t1.e+coalesce((select max(19) from t1 where case when e in (+b,coalesce((select a+(11) from t1 where b not between c and d or t1.b not in (a,11,17)),b),11) then 19 when (c) not in (t1.c,t1.b,d) then t1.c else t1.d end*f not between t1.a and d),13) end when c then 11 else c end) FROM t1 WHERE NOT (19 not between coalesce((select max(d*t1.c) from t1 where (select cast(avg((b)) AS integer) from t1) in (select ( - -(abs(case max(b) when cast(avg( -13-11) AS integer) then count(distinct a-e) else ~ -cast(avg((c)) AS integer)-min(17)+count(*) end) | (min(e)))-min((19))) from t1 union select count(distinct 13) from t1)),case when  -e | 19 between  -11 and f then 19 else 19 end) and (f))}
+} {300}
+do_test randexpr-2.464 {
+  db eval {SELECT (abs((select abs(case  -max(e)+max(t1.f)+(count(*)* -count(distinct case e when 19 then c else 13 end))*~min(t1.a) when cast(avg(t1.a) AS integer) then  -min(e) else  -count(*) end) from t1)*coalesce((select (t1.a) from t1 where case when c+t1.b-b | d in (select max(d) from t1 union select  -max(19) from t1) then t1.b else f end=t1.d),t1.b)*(t1.d) | e+t1.a)/abs(t1.d)) FROM t1 WHERE t1.f in (19,d*t1.d,(select min((select count(*)*min((17)+(abs(11)/abs(+~coalesce((select max(f) from t1 where 13 not between t1.c and t1.a),t1.e)-11))) from t1)) from t1)+17)}
+} {}
+do_test randexpr-2.465 {
+  db eval {SELECT (abs((select abs(case  -max(e)+max(t1.f)+(count(*)* -count(distinct case e when 19 then c else 13 end))*~min(t1.a) when cast(avg(t1.a) AS integer) then  -min(e) else  -count(*) end) from t1)*coalesce((select (t1.a) from t1 where case when c+t1.b-b | d in (select max(d) from t1 union select  -max(19) from t1) then t1.b else f end=t1.d),t1.b)*(t1.d) | e+t1.a)/abs(t1.d)) FROM t1 WHERE NOT (t1.f in (19,d*t1.d,(select min((select count(*)*min((17)+(abs(11)/abs(+~coalesce((select max(f) from t1 where 13 not between t1.c and t1.a),t1.e)-11))) from t1)) from t1)+17))}
+} {201}
+do_test randexpr-2.466 {
+  db eval {SELECT (abs((select abs(case  -max(e)+max(t1.f)+(count(*)* -count(distinct case e when 19 then c else 13 end))*~min(t1.a) when cast(avg(t1.a) AS integer) then  -min(e) else  -count(*) end) from t1)*coalesce((select (t1.a) from t1 where case when c+t1.b-b & d in (select max(d) from t1 union select  -max(19) from t1) then t1.b else f end=t1.d),t1.b)*(t1.d) & e+t1.a)/abs(t1.d)) FROM t1 WHERE NOT (t1.f in (19,d*t1.d,(select min((select count(*)*min((17)+(abs(11)/abs(+~coalesce((select max(f) from t1 where 13 not between t1.c and t1.a),t1.e)-11))) from t1)) from t1)+17))}
+} {0}
+do_test randexpr-2.467 {
+  db eval {SELECT d+case when (coalesce((select max(t1.a) from t1 where t1.a not in (t1.d,f*(select count(distinct t1.d) from t1)+t1.f,c)),b)-c-17-t1.c)-case when 13*t1.a-19*e<>11 then f when t1.f not between 11 and t1.d then b else f end=t1.d then t1.f when not e>t1.f then 17 else b end FROM t1 WHERE exists(select 1 from t1 where 11* -d>=e) or t1.c<+ -e*11 or (17 not between t1.d and case t1.a when t1.a then t1.d+f-b else 11 end | t1.e)}
+} {417}
+do_test randexpr-2.468 {
+  db eval {SELECT d+case when (coalesce((select max(t1.a) from t1 where t1.a not in (t1.d,f*(select count(distinct t1.d) from t1)+t1.f,c)),b)-c-17-t1.c)-case when 13*t1.a-19*e<>11 then f when t1.f not between 11 and t1.d then b else f end=t1.d then t1.f when not e>t1.f then 17 else b end FROM t1 WHERE NOT (exists(select 1 from t1 where 11* -d>=e) or t1.c<+ -e*11 or (17 not between t1.d and case t1.a when t1.a then t1.d+f-b else 11 end | t1.e))}
+} {}
+do_test randexpr-2.469 {
+  db eval {SELECT t1.f-coalesce((select max(+e | b) from t1 where case when  -(abs(11)/abs(~(19 | t1.d)))-~c*e not in (19,b*t1.b,b) then 11 when f<=13 then d else t1.d end in (select (count(*))-cast(avg(11 | 17*t1.b) AS integer) from t1 union select count(distinct a-17) from t1)),t1.c)-c FROM t1 WHERE case when (t1.f*a<=11+d+coalesce((select max(19+19) from t1 where 13 in (select min(f)+cast(avg((abs(t1.e)/abs((select count(distinct c) from t1)))) AS integer)+(~cast(avg(e) AS integer))-min(c) from t1 union select count(*) from t1)),b)) then (a) else t1.b end-t1.b<=t1.b and 13 in (select t1.e from t1 union select t1.e from t1) and a<e}
+} {}
+do_test randexpr-2.470 {
+  db eval {SELECT t1.f-coalesce((select max(+e | b) from t1 where case when  -(abs(11)/abs(~(19 | t1.d)))-~c*e not in (19,b*t1.b,b) then 11 when f<=13 then d else t1.d end in (select (count(*))-cast(avg(11 | 17*t1.b) AS integer) from t1 union select count(distinct a-17) from t1)),t1.c)-c FROM t1 WHERE NOT (case when (t1.f*a<=11+d+coalesce((select max(19+19) from t1 where 13 in (select min(f)+cast(avg((abs(t1.e)/abs((select count(distinct c) from t1)))) AS integer)+(~cast(avg(e) AS integer))-min(c) from t1 union select count(*) from t1)),b)) then (a) else t1.b end-t1.b<=t1.b and 13 in (select t1.e from t1 union select t1.e from t1) and a<e)}
+} {0}
+do_test randexpr-2.471 {
+  db eval {SELECT t1.f-coalesce((select max(+e & b) from t1 where case when  -(abs(11)/abs(~(19 & t1.d)))-~c*e not in (19,b*t1.b,b) then 11 when f<=13 then d else t1.d end in (select (count(*))-cast(avg(11 & 17*t1.b) AS integer) from t1 union select count(distinct a-17) from t1)),t1.c)-c FROM t1 WHERE NOT (case when (t1.f*a<=11+d+coalesce((select max(19+19) from t1 where 13 in (select min(f)+cast(avg((abs(t1.e)/abs((select count(distinct c) from t1)))) AS integer)+(~cast(avg(e) AS integer))-min(c) from t1 union select count(*) from t1)),b)) then (a) else t1.b end-t1.b<=t1.b and 13 in (select t1.e from t1 union select t1.e from t1) and a<e)}
+} {0}
+do_test randexpr-2.472 {
+  db eval {SELECT coalesce((select max(t1.c) from t1 where case when (t1.e*19*f-t1.b in (select cast(avg(d-~d) AS integer) from t1 union select +( -case +~count(*)*count(distinct (c)) when cast(avg(19) AS integer) then min(c) else count(distinct 17) end*cast(avg((13)) AS integer)-max(11)+(count(distinct b))) from t1)) then +11 else t1.b end>=t1.d or (exists(select 1 from t1 where (t1.e=t1.c)))),t1.c)-11 FROM t1 WHERE (not exists(select 1 from t1 where 11+t1.c-13>=t1.c or not exists(select 1 from t1 where a in (select b from t1 union select 19-d from t1) and ((abs(a+(abs(coalesce((select t1.d from t1 where exists(select 1 from t1 where case when t1.e>= -13 or  -e<>f then d when t1.c=13 then (b) else t1.c end not between 13 and b)),d))/abs(t1.d))-b)/abs(t1.a))<> -13 and exists(select 1 from t1 where 19<>e) or 13>=19))))}
+} {}
+do_test randexpr-2.473 {
+  db eval {SELECT coalesce((select max(t1.c) from t1 where case when (t1.e*19*f-t1.b in (select cast(avg(d-~d) AS integer) from t1 union select +( -case +~count(*)*count(distinct (c)) when cast(avg(19) AS integer) then min(c) else count(distinct 17) end*cast(avg((13)) AS integer)-max(11)+(count(distinct b))) from t1)) then +11 else t1.b end>=t1.d or (exists(select 1 from t1 where (t1.e=t1.c)))),t1.c)-11 FROM t1 WHERE NOT ((not exists(select 1 from t1 where 11+t1.c-13>=t1.c or not exists(select 1 from t1 where a in (select b from t1 union select 19-d from t1) and ((abs(a+(abs(coalesce((select t1.d from t1 where exists(select 1 from t1 where case when t1.e>= -13 or  -e<>f then d when t1.c=13 then (b) else t1.c end not between 13 and b)),d))/abs(t1.d))-b)/abs(t1.a))<> -13 and exists(select 1 from t1 where 19<>e) or 13>=19)))))}
+} {289}
+do_test randexpr-2.474 {
+  db eval {SELECT +coalesce((select max(11) from t1 where not case d+t1.c*coalesce((select max(coalesce((select d | e from t1 where 17 not between coalesce((select (t1.d) from t1 where t1.a between (select max(t1.b+d+t1.a) from t1)-t1.e and 17),t1.a) and 11),19)) from t1 where t1.d<t1.b),d)+t1.e when t1.f then t1.d else t1.f end not in (e,t1.c,t1.c)),c) | c FROM t1 WHERE exists(select 1 from t1 where c in (t1.a,(select count(distinct  -t1.d) from t1),t1.b)) or (~d=t1.e)}
+} {}
+do_test randexpr-2.475 {
+  db eval {SELECT +coalesce((select max(11) from t1 where not case d+t1.c*coalesce((select max(coalesce((select d | e from t1 where 17 not between coalesce((select (t1.d) from t1 where t1.a between (select max(t1.b+d+t1.a) from t1)-t1.e and 17),t1.a) and 11),19)) from t1 where t1.d<t1.b),d)+t1.e when t1.f then t1.d else t1.f end not in (e,t1.c,t1.c)),c) | c FROM t1 WHERE NOT (exists(select 1 from t1 where c in (t1.a,(select count(distinct  -t1.d) from t1),t1.b)) or (~d=t1.e))}
+} {300}
+do_test randexpr-2.476 {
+  db eval {SELECT +coalesce((select max(11) from t1 where not case d+t1.c*coalesce((select max(coalesce((select d & e from t1 where 17 not between coalesce((select (t1.d) from t1 where t1.a between (select max(t1.b+d+t1.a) from t1)-t1.e and 17),t1.a) and 11),19)) from t1 where t1.d<t1.b),d)+t1.e when t1.f then t1.d else t1.f end not in (e,t1.c,t1.c)),c) & c FROM t1 WHERE NOT (exists(select 1 from t1 where c in (t1.a,(select count(distinct  -t1.d) from t1),t1.b)) or (~d=t1.e))}
+} {300}
+do_test randexpr-2.477 {
+  db eval {SELECT case when ((select  -min(e)+cast(avg(t1.a) AS integer) from t1)>t1.d*a) then (abs(~a)/abs(+11))*f when (c-(coalesce((select 11 from t1 where t1.d in (case when (19)+11>=c then 19 when e<>b then 13 else c end,a,13)),17))+13) not between 11 and t1.c then (t1.b) else 17 end+b FROM t1 WHERE a*b*11 in (select case when not coalesce((select max(~13 | (select abs((count(distinct t1.f))*cast(avg(t1.f) AS integer)+(max(t1.e))) from t1)) from t1 where coalesce((select max(11) from t1 where t1.b=19),b) in (f,11,19) and t1.f between a and t1.c or 19=t1.a and d=17 or c>=t1.f or t1.d<>t1.c),11)*c in (select f from t1 union select  -t1.b from t1) then t1.c when c not between f and 13 then e else  -e end from t1 union select e from t1)}
+} {}
+do_test randexpr-2.478 {
+  db eval {SELECT case when ((select  -min(e)+cast(avg(t1.a) AS integer) from t1)>t1.d*a) then (abs(~a)/abs(+11))*f when (c-(coalesce((select 11 from t1 where t1.d in (case when (19)+11>=c then 19 when e<>b then 13 else c end,a,13)),17))+13) not between 11 and t1.c then (t1.b) else 17 end+b FROM t1 WHERE NOT (a*b*11 in (select case when not coalesce((select max(~13 | (select abs((count(distinct t1.f))*cast(avg(t1.f) AS integer)+(max(t1.e))) from t1)) from t1 where coalesce((select max(11) from t1 where t1.b=19),b) in (f,11,19) and t1.f between a and t1.c or 19=t1.a and d=17 or c>=t1.f or t1.d<>t1.c),11)*c in (select f from t1 union select  -t1.b from t1) then t1.c when c not between f and 13 then e else  -e end from t1 union select e from t1))}
+} {217}
+do_test randexpr-2.479 {
+  db eval {SELECT t1.d-coalesce((select  -t1.c from t1 where not exists(select 1 from t1 where not exists(select 1 from t1 where t1.d<=case t1.d+e when case when d>19 then 11+t1.c else t1.b end-t1.f-t1.e then (abs(t1.d-19*t1.b)/abs(13+case when t1.f in (select count(*)-count(distinct t1.b) from t1 union select (max((t1.f))) from t1) then (((t1.d))) when t1.b not in (t1.d,13,a) then t1.d else 19 end*t1.c))-t1.d else e end))),13)+c*t1.a FROM t1 WHERE exists(select 1 from t1 where ~coalesce((select a+t1.a from t1 where ~(abs(c)/abs(17 | +13))-t1.f in (select f from t1 union select case when t1.b between 11*e and f then e when a in (e* -t1.f-f,coalesce((select 17 from t1 where t1.e in (select (cast(avg(e) AS integer)) from t1 union select max(b) from t1)),a),d) then t1.c else (f) end from t1)),f) between  -19 and (13) or t1.f<>t1.a)}
+} {30700}
+do_test randexpr-2.480 {
+  db eval {SELECT t1.d-coalesce((select  -t1.c from t1 where not exists(select 1 from t1 where not exists(select 1 from t1 where t1.d<=case t1.d+e when case when d>19 then 11+t1.c else t1.b end-t1.f-t1.e then (abs(t1.d-19*t1.b)/abs(13+case when t1.f in (select count(*)-count(distinct t1.b) from t1 union select (max((t1.f))) from t1) then (((t1.d))) when t1.b not in (t1.d,13,a) then t1.d else 19 end*t1.c))-t1.d else e end))),13)+c*t1.a FROM t1 WHERE NOT (exists(select 1 from t1 where ~coalesce((select a+t1.a from t1 where ~(abs(c)/abs(17 | +13))-t1.f in (select f from t1 union select case when t1.b between 11*e and f then e when a in (e* -t1.f-f,coalesce((select 17 from t1 where t1.e in (select (cast(avg(e) AS integer)) from t1 union select max(b) from t1)),a),d) then t1.c else (f) end from t1)),f) between  -19 and (13) or t1.f<>t1.a))}
+} {}
+do_test randexpr-2.481 {
+  db eval {SELECT (abs((abs(t1.b*t1.b*t1.f+a)/abs(t1.f))*t1.a-case  -(abs(coalesce((select (case when 11*19 in (select count(*) from t1 union select  -min(13)-(max(t1.a)) from t1) then 19 else  -17 end) from t1 where t1.e between 13 and (a)),t1.b)+d)/abs(t1.f))-t1.b-t1.c | d when  -t1.f then c else 17 end)/abs(13))-b*t1.d FROM t1 WHERE 13 in (t1.b,17*e+c*a,coalesce((select max(d) from t1 where +f+b not in (a,t1.a*~t1.c | t1.b-case when t1.a<=case when t1.f in (b,11,e) then d else t1.e end+f then 19 else (f) end-b*13- -t1.f-17,t1.c)),17))}
+} {}
+do_test randexpr-2.482 {
+  db eval {SELECT (abs((abs(t1.b*t1.b*t1.f+a)/abs(t1.f))*t1.a-case  -(abs(coalesce((select (case when 11*19 in (select count(*) from t1 union select  -min(13)-(max(t1.a)) from t1) then 19 else  -17 end) from t1 where t1.e between 13 and (a)),t1.b)+d)/abs(t1.f))-t1.b-t1.c | d when  -t1.f then c else 17 end)/abs(13))-b*t1.d FROM t1 WHERE NOT (13 in (t1.b,17*e+c*a,coalesce((select max(d) from t1 where +f+b not in (a,t1.a*~t1.c | t1.b-case when t1.a<=case when t1.f in (b,11,e) then d else t1.e end+f then 19 else (f) end-b*13- -t1.f-17,t1.c)),17)))}
+} {227691}
+do_test randexpr-2.483 {
+  db eval {SELECT (abs((abs(t1.b*t1.b*t1.f+a)/abs(t1.f))*t1.a-case  -(abs(coalesce((select (case when 11*19 in (select count(*) from t1 union select  -min(13)-(max(t1.a)) from t1) then 19 else  -17 end) from t1 where t1.e between 13 and (a)),t1.b)+d)/abs(t1.f))-t1.b-t1.c & d when  -t1.f then c else 17 end)/abs(13))-b*t1.d FROM t1 WHERE NOT (13 in (t1.b,17*e+c*a,coalesce((select max(d) from t1 where +f+b not in (a,t1.a*~t1.c | t1.b-case when t1.a<=case when t1.f in (b,11,e) then d else t1.e end+f then 19 else (f) end-b*13- -t1.f-17,t1.c)),17)))}
+} {227691}
+do_test randexpr-2.484 {
+  db eval {SELECT coalesce((select t1.c*f from t1 where t1.f-+coalesce((select max(t1.d) from t1 where  - -t1.e in (select f from t1 union select t1.e from t1)),a)+case when 19 not in (t1.e,case when ~t1.a<>e+a then  -t1.d else t1.e end,f) then t1.b when  -(t1.e) in (e,(19),t1.c) then t1.f else e end+17*t1.c+d>b),t1.c)+a FROM t1 WHERE t1.b>=~b}
+} {180100}
+do_test randexpr-2.485 {
+  db eval {SELECT coalesce((select t1.c*f from t1 where t1.f-+coalesce((select max(t1.d) from t1 where  - -t1.e in (select f from t1 union select t1.e from t1)),a)+case when 19 not in (t1.e,case when ~t1.a<>e+a then  -t1.d else t1.e end,f) then t1.b when  -(t1.e) in (e,(19),t1.c) then t1.f else e end+17*t1.c+d>b),t1.c)+a FROM t1 WHERE NOT (t1.b>=~b)}
+} {}
+do_test randexpr-2.486 {
+  db eval {SELECT case case when case when 13 between coalesce((select max(t1.f) from t1 where b+f in (b+(coalesce((select t1.f from t1 where (t1.c)>=17 or 19 not in (11,t1.e,c)),13)),b,t1.e) and c<=e and not t1.b<>13 and 19 not between t1.c and a or c between f and f),t1.c) and b then t1.b when 13<>t1.a then 11 else d end in (select 13 from t1 union select 19 from t1) then t1.c when t1.f not in (17,b,b) then t1.f else e end when t1.e then t1.e else  -d end FROM t1 WHERE case when not exists(select 1 from t1 where t1.f not between coalesce((select coalesce((select max(+case t1.a when f then t1.a else t1.e end+case when t1.f>t1.d or 11 in (t1.e,11,b) then b else a end) from t1 where t1.f in (select a from t1 union select d from t1)),t1.d) from t1 where t1.a=b),(t1.c)) and d) then (select case max(t1.a) when ~min((11)) | min(e) then max(t1.e) else abs(max(t1.c)*count(distinct 19)) end from t1) else t1.b end<>b}
+} {}
+do_test randexpr-2.487 {
+  db eval {SELECT case case when case when 13 between coalesce((select max(t1.f) from t1 where b+f in (b+(coalesce((select t1.f from t1 where (t1.c)>=17 or 19 not in (11,t1.e,c)),13)),b,t1.e) and c<=e and not t1.b<>13 and 19 not between t1.c and a or c between f and f),t1.c) and b then t1.b when 13<>t1.a then 11 else d end in (select 13 from t1 union select 19 from t1) then t1.c when t1.f not in (17,b,b) then t1.f else e end when t1.e then t1.e else  -d end FROM t1 WHERE NOT (case when not exists(select 1 from t1 where t1.f not between coalesce((select coalesce((select max(+case t1.a when f then t1.a else t1.e end+case when t1.f>t1.d or 11 in (t1.e,11,b) then b else a end) from t1 where t1.f in (select a from t1 union select d from t1)),t1.d) from t1 where t1.a=b),(t1.c)) and d) then (select case max(t1.a) when ~min((11)) | min(e) then max(t1.e) else abs(max(t1.c)*count(distinct 19)) end from t1) else t1.b end<>b)}
+} {-400}
+do_test randexpr-2.488 {
+  db eval {SELECT case  -coalesce((select max(case when case when t1.e in (11*t1.e*17,(select (min(b) |  - -+cast(avg(17) AS integer)*max((t1.c))+cast(avg(t1.a) AS integer))+(( -(min(t1.c))))*count(*) from t1), -~b*t1.d+t1.d) then d else t1.a end<(t1.c) then t1.f else e end) from t1 where 13<>c),e)-(t1.b) when t1.a then 17 else t1.f end FROM t1 WHERE coalesce((select max(t1.e) from t1 where (not exists(select 1 from t1 where b<+c))),case when b | ~case t1.a when  -t1.b then  -t1.f else t1.f end*f+f in (select t1.b from t1 union select t1.c from t1) then  -(t1.f) when a<>11 then (d) else 11 end) in (select abs(~(abs(case (min(t1.b)*abs(count(distinct a)+count(*) |  -count(distinct a)))- -max(19) when max(t1.e) then min(d) else (max(a)) end))) from t1 union select count(*) from t1)}
+} {}
+do_test randexpr-2.489 {
+  db eval {SELECT case  -coalesce((select max(case when case when t1.e in (11*t1.e*17,(select (min(b) |  - -+cast(avg(17) AS integer)*max((t1.c))+cast(avg(t1.a) AS integer))+(( -(min(t1.c))))*count(*) from t1), -~b*t1.d+t1.d) then d else t1.a end<(t1.c) then t1.f else e end) from t1 where 13<>c),e)-(t1.b) when t1.a then 17 else t1.f end FROM t1 WHERE NOT (coalesce((select max(t1.e) from t1 where (not exists(select 1 from t1 where b<+c))),case when b | ~case t1.a when  -t1.b then  -t1.f else t1.f end*f+f in (select t1.b from t1 union select t1.c from t1) then  -(t1.f) when a<>11 then (d) else 11 end) in (select abs(~(abs(case (min(t1.b)*abs(count(distinct a)+count(*) |  -count(distinct a)))- -max(19) when max(t1.e) then min(d) else (max(a)) end))) from t1 union select count(*) from t1))}
+} {600}
+do_test randexpr-2.490 {
+  db eval {SELECT case  -coalesce((select max(case when case when t1.e in (11*t1.e*17,(select (min(b) &  - -+cast(avg(17) AS integer)*max((t1.c))+cast(avg(t1.a) AS integer))+(( -(min(t1.c))))*count(*) from t1), -~b*t1.d+t1.d) then d else t1.a end<(t1.c) then t1.f else e end) from t1 where 13<>c),e)-(t1.b) when t1.a then 17 else t1.f end FROM t1 WHERE NOT (coalesce((select max(t1.e) from t1 where (not exists(select 1 from t1 where b<+c))),case when b | ~case t1.a when  -t1.b then  -t1.f else t1.f end*f+f in (select t1.b from t1 union select t1.c from t1) then  -(t1.f) when a<>11 then (d) else 11 end) in (select abs(~(abs(case (min(t1.b)*abs(count(distinct a)+count(*) |  -count(distinct a)))- -max(19) when max(t1.e) then min(d) else (max(a)) end))) from t1 union select count(*) from t1))}
+} {600}
+do_test randexpr-2.491 {
+  db eval {SELECT +case when case when ~t1.b<=case when ~17*19 | 11*11*f between t1.c and b then t1.a when e in (t1.a,t1.e,e) then t1.c else 19 end-t1.c-17+a then (t1.d) when 13 not between 13 and 19 then c else c end=(f) or d<t1.f then  -t1.f else t1.d end FROM t1 WHERE 19*++t1.e=coalesce((select case  -t1.f when case when d-t1.a*d*coalesce((select max(t1.d) from t1 where b-b> -coalesce((select t1.b from t1 where c*13+c<>t1.f),a)),t1.e)+t1.f=t1.f then  - - -f else b end then  -11 else  -d end from t1 where ( -t1.c<f)),t1.e)+19}
+} {}
+do_test randexpr-2.492 {
+  db eval {SELECT +case when case when ~t1.b<=case when ~17*19 | 11*11*f between t1.c and b then t1.a when e in (t1.a,t1.e,e) then t1.c else 19 end-t1.c-17+a then (t1.d) when 13 not between 13 and 19 then c else c end=(f) or d<t1.f then  -t1.f else t1.d end FROM t1 WHERE NOT (19*++t1.e=coalesce((select case  -t1.f when case when d-t1.a*d*coalesce((select max(t1.d) from t1 where b-b> -coalesce((select t1.b from t1 where c*13+c<>t1.f),a)),t1.e)+t1.f=t1.f then  - - -f else b end then  -11 else  -d end from t1 where ( -t1.c<f)),t1.e)+19)}
+} {-600}
+do_test randexpr-2.493 {
+  db eval {SELECT +case when case when ~t1.b<=case when ~17*19 & 11*11*f between t1.c and b then t1.a when e in (t1.a,t1.e,e) then t1.c else 19 end-t1.c-17+a then (t1.d) when 13 not between 13 and 19 then c else c end=(f) or d<t1.f then  -t1.f else t1.d end FROM t1 WHERE NOT (19*++t1.e=coalesce((select case  -t1.f when case when d-t1.a*d*coalesce((select max(t1.d) from t1 where b-b> -coalesce((select t1.b from t1 where c*13+c<>t1.f),a)),t1.e)+t1.f=t1.f then  - - -f else b end then  -11 else  -d end from t1 where ( -t1.c<f)),t1.e)+19)}
+} {-600}
+do_test randexpr-2.494 {
+  db eval {SELECT case when case when 19 in (select abs(abs(count(distinct f))*~~~count(*)-abs(+abs(count(*))* -cast(avg(17) AS integer) | cast(avg(t1.d) AS integer))+count(distinct  -t1.a)+count(*)) from t1 union select  -cast(avg(19) AS integer) from t1) then b* -b-c else t1.e*c end=17 then d else coalesce((select  -11 from t1 where e<e),a)-c end+d*t1.a FROM t1 WHERE (a-t1.b+19<>case when b between ~11 and (abs(case when (coalesce((select max(+13) from t1 where not not exists(select 1 from t1 where t1.b+e in (b,t1.b,t1.d)) and 13 not in (d,f,17)),t1.a) not in (t1.f,17,17)) then coalesce((select max(19) from t1 where (17) in (t1.a,17,a)),t1.b) when b in (13,t1.a,b) then t1.c else d end)/abs(11)) then t1.f when t1.d>19 then d else d end)}
+} {39800}
+do_test randexpr-2.495 {
+  db eval {SELECT case when case when 19 in (select abs(abs(count(distinct f))*~~~count(*)-abs(+abs(count(*))* -cast(avg(17) AS integer) | cast(avg(t1.d) AS integer))+count(distinct  -t1.a)+count(*)) from t1 union select  -cast(avg(19) AS integer) from t1) then b* -b-c else t1.e*c end=17 then d else coalesce((select  -11 from t1 where e<e),a)-c end+d*t1.a FROM t1 WHERE NOT ((a-t1.b+19<>case when b between ~11 and (abs(case when (coalesce((select max(+13) from t1 where not not exists(select 1 from t1 where t1.b+e in (b,t1.b,t1.d)) and 13 not in (d,f,17)),t1.a) not in (t1.f,17,17)) then coalesce((select max(19) from t1 where (17) in (t1.a,17,a)),t1.b) when b in (13,t1.a,b) then t1.c else d end)/abs(11)) then t1.f when t1.d>19 then d else d end))}
+} {}
+do_test randexpr-2.496 {
+  db eval {SELECT case when case when 19 in (select abs(abs(count(distinct f))*~~~count(*)-abs(+abs(count(*))* -cast(avg(17) AS integer) & cast(avg(t1.d) AS integer))+count(distinct  -t1.a)+count(*)) from t1 union select  -cast(avg(19) AS integer) from t1) then b* -b-c else t1.e*c end=17 then d else coalesce((select  -11 from t1 where e<e),a)-c end+d*t1.a FROM t1 WHERE (a-t1.b+19<>case when b between ~11 and (abs(case when (coalesce((select max(+13) from t1 where not not exists(select 1 from t1 where t1.b+e in (b,t1.b,t1.d)) and 13 not in (d,f,17)),t1.a) not in (t1.f,17,17)) then coalesce((select max(19) from t1 where (17) in (t1.a,17,a)),t1.b) when b in (13,t1.a,b) then t1.c else d end)/abs(11)) then t1.f when t1.d>19 then d else d end)}
+} {39800}
+do_test randexpr-2.497 {
+  db eval {SELECT t1.a-coalesce((select t1.e from t1 where not exists(select 1 from t1 where a in (select min(d-11) | cast(avg((select  -case count(*) when count(*) then +abs(+case ~min((abs(13- -a)/abs(t1.c))) when ~~count(*)+min((13)) then max(t1.e) else cast(avg(t1.a) AS integer) end | max(c))+count(*) else count(*) end*max(t1.d) from t1)) AS integer)+max(t1.c)*count(distinct f) from t1 union select  -count(*) from t1))),~17) FROM t1 WHERE case 11 when coalesce((select coalesce((select 19 from t1 where t1.b not between t1.e and e and not not exists(select 1 from t1 where (e in ((abs(c)/abs(17)),(d) | e,(select count(distinct t1.b) from t1)-b)))),case d when a then f else t1.c end) | (t1.d) | b from t1 where t1.c not in (t1.a,19,11)),t1.b)-d then t1.e else t1.d end*t1.d<>f}
+} {-400}
+do_test randexpr-2.498 {
+  db eval {SELECT t1.a-coalesce((select t1.e from t1 where not exists(select 1 from t1 where a in (select min(d-11) | cast(avg((select  -case count(*) when count(*) then +abs(+case ~min((abs(13- -a)/abs(t1.c))) when ~~count(*)+min((13)) then max(t1.e) else cast(avg(t1.a) AS integer) end | max(c))+count(*) else count(*) end*max(t1.d) from t1)) AS integer)+max(t1.c)*count(distinct f) from t1 union select  -count(*) from t1))),~17) FROM t1 WHERE NOT (case 11 when coalesce((select coalesce((select 19 from t1 where t1.b not between t1.e and e and not not exists(select 1 from t1 where (e in ((abs(c)/abs(17)),(d) | e,(select count(distinct t1.b) from t1)-b)))),case d when a then f else t1.c end) | (t1.d) | b from t1 where t1.c not in (t1.a,19,11)),t1.b)-d then t1.e else t1.d end*t1.d<>f)}
+} {}
+do_test randexpr-2.499 {
+  db eval {SELECT t1.a-coalesce((select t1.e from t1 where not exists(select 1 from t1 where a in (select min(d-11) & cast(avg((select  -case count(*) when count(*) then +abs(+case ~min((abs(13- -a)/abs(t1.c))) when ~~count(*)+min((13)) then max(t1.e) else cast(avg(t1.a) AS integer) end & max(c))+count(*) else count(*) end*max(t1.d) from t1)) AS integer)+max(t1.c)*count(distinct f) from t1 union select  -count(*) from t1))),~17) FROM t1 WHERE case 11 when coalesce((select coalesce((select 19 from t1 where t1.b not between t1.e and e and not not exists(select 1 from t1 where (e in ((abs(c)/abs(17)),(d) | e,(select count(distinct t1.b) from t1)-b)))),case d when a then f else t1.c end) | (t1.d) | b from t1 where t1.c not in (t1.a,19,11)),t1.b)-d then t1.e else t1.d end*t1.d<>f}
+} {-400}
+do_test randexpr-2.500 {
+  db eval {SELECT case b*coalesce((select coalesce((select max(coalesce((select t1.b from t1 where t1.a<>11),17+~19)) from t1 where (t1.e<>e)),case 13 when 17 then 13 else c-coalesce((select max(case when (select min(d) from t1) in (select max(13) from t1 union select min(t1.f) from t1) then 13 else t1.a end*c) from t1 where t1.b<(t1.b)),f) end) from t1 where 19<=t1.e),(t1.b)) when t1.b then e else t1.d end+t1.c FROM t1 WHERE b+coalesce((select max((d)) from t1 where e=b),t1.c)*((select  -(min(coalesce((select 19+(abs((abs((t1.a)*case f when c then t1.b else t1.d end-e)/abs((t1.f))))/abs( -t1.e))+b from t1 where 13 not between d and t1.c),t1.f))) from t1))*case e when 19 then t1.d else t1.b end+t1.e not in (t1.d,t1.a,17)}
+} {700}
+do_test randexpr-2.501 {
+  db eval {SELECT case b*coalesce((select coalesce((select max(coalesce((select t1.b from t1 where t1.a<>11),17+~19)) from t1 where (t1.e<>e)),case 13 when 17 then 13 else c-coalesce((select max(case when (select min(d) from t1) in (select max(13) from t1 union select min(t1.f) from t1) then 13 else t1.a end*c) from t1 where t1.b<(t1.b)),f) end) from t1 where 19<=t1.e),(t1.b)) when t1.b then e else t1.d end+t1.c FROM t1 WHERE NOT (b+coalesce((select max((d)) from t1 where e=b),t1.c)*((select  -(min(coalesce((select 19+(abs((abs((t1.a)*case f when c then t1.b else t1.d end-e)/abs((t1.f))))/abs( -t1.e))+b from t1 where 13 not between d and t1.c),t1.f))) from t1))*case e when 19 then t1.d else t1.b end+t1.e not in (t1.d,t1.a,17))}
+} {}
+do_test randexpr-2.502 {
+  db eval {SELECT case when case when exists(select 1 from t1 where 17 in (select b from t1 union select 13 from t1)) and 19+a in (select count(distinct  -(select min(t1.a-f) from t1)) from t1 union select min(case when 11 between coalesce((select max(t1.b) from t1 where case when t1.d<>c or t1.b>=t1.a then ( -11) else t1.d end>=t1.a),t1.c) and  -17 then  -t1.f else e end) from t1) then a else 19 end+t1.e in (select e from t1 union select  -t1.b from t1) then t1.b when not (f) between f and t1.c then t1.e else e end FROM t1 WHERE 17>coalesce((select t1.b from t1 where t1.a+case when b in (19,t1.c,case t1.e when d-(b) then t1.f else 13 end) then 13 when d in (select count(distinct t1.a) from t1 union select case ~max(f) when cast(avg(b) AS integer) then max(d) else min(t1.f) end*min(e) from t1) or (t1.c<a) then t1.f else  -t1.c end<f or 13<=f),c) or 19>=t1.e}
+} {}
+do_test randexpr-2.503 {
+  db eval {SELECT case when case when exists(select 1 from t1 where 17 in (select b from t1 union select 13 from t1)) and 19+a in (select count(distinct  -(select min(t1.a-f) from t1)) from t1 union select min(case when 11 between coalesce((select max(t1.b) from t1 where case when t1.d<>c or t1.b>=t1.a then ( -11) else t1.d end>=t1.a),t1.c) and  -17 then  -t1.f else e end) from t1) then a else 19 end+t1.e in (select e from t1 union select  -t1.b from t1) then t1.b when not (f) between f and t1.c then t1.e else e end FROM t1 WHERE NOT (17>coalesce((select t1.b from t1 where t1.a+case when b in (19,t1.c,case t1.e when d-(b) then t1.f else 13 end) then 13 when d in (select count(distinct t1.a) from t1 union select case ~max(f) when cast(avg(b) AS integer) then max(d) else min(t1.f) end*min(e) from t1) or (t1.c<a) then t1.f else  -t1.c end<f or 13<=f),c) or 19>=t1.e)}
+} {500}
+do_test randexpr-2.504 {
+  db eval {SELECT c*(select (count(distinct (abs(case when t1.c<>e then e else 19 end)/abs(case when case when +case when a | t1.e+t1.e in (select  -count(*) from t1 union select (max(case when 11 not in (t1.f,11,f) then c when c not in (d,t1.f,t1.f) then  -t1.a else 13 end)) from t1) then 17 else 13 end>=t1.e then  -11 when (t1.f)>c then 11 else 11 end<=11 and not exists(select 1 from t1 where t1.a between t1.e and e) then 19 else (17) end)))) from t1) FROM t1 WHERE ((select  -case min(a-13*17+c*coalesce((select 19 from t1 where 19>=t1.d),(t1.b))+t1.e) when +(min(17)) then min(17) else +min(b) end* -cast(avg(19) AS integer)*count(*) from t1) not between a and d) and +c in (c,t1.d,d) or d<>t1.f}
+} {300}
+do_test randexpr-2.505 {
+  db eval {SELECT c*(select (count(distinct (abs(case when t1.c<>e then e else 19 end)/abs(case when case when +case when a | t1.e+t1.e in (select  -count(*) from t1 union select (max(case when 11 not in (t1.f,11,f) then c when c not in (d,t1.f,t1.f) then  -t1.a else 13 end)) from t1) then 17 else 13 end>=t1.e then  -11 when (t1.f)>c then 11 else 11 end<=11 and not exists(select 1 from t1 where t1.a between t1.e and e) then 19 else (17) end)))) from t1) FROM t1 WHERE NOT (((select  -case min(a-13*17+c*coalesce((select 19 from t1 where 19>=t1.d),(t1.b))+t1.e) when +(min(17)) then min(17) else +min(b) end* -cast(avg(19) AS integer)*count(*) from t1) not between a and d) and +c in (c,t1.d,d) or d<>t1.f)}
+} {}
+do_test randexpr-2.506 {
+  db eval {SELECT c*(select (count(distinct (abs(case when t1.c<>e then e else 19 end)/abs(case when case when +case when a & t1.e+t1.e in (select  -count(*) from t1 union select (max(case when 11 not in (t1.f,11,f) then c when c not in (d,t1.f,t1.f) then  -t1.a else 13 end)) from t1) then 17 else 13 end>=t1.e then  -11 when (t1.f)>c then 11 else 11 end<=11 and not exists(select 1 from t1 where t1.a between t1.e and e) then 19 else (17) end)))) from t1) FROM t1 WHERE ((select  -case min(a-13*17+c*coalesce((select 19 from t1 where 19>=t1.d),(t1.b))+t1.e) when +(min(17)) then min(17) else +min(b) end* -cast(avg(19) AS integer)*count(*) from t1) not between a and d) and +c in (c,t1.d,d) or d<>t1.f}
+} {300}
+do_test randexpr-2.507 {
+  db eval {SELECT a*coalesce((select t1.d+17 from t1 where 13*case a when t1.a then 11 else  -t1.a-d-11-coalesce((select max(e-coalesce((select d from t1 where a<=t1.d*(coalesce((select max( -t1.d) from t1 where t1.f not in (11, -t1.d,17) and t1.a between (13) and c and e not in (t1.b,t1.b,b)),b))), -17)) from t1 where t1.b<>a),19)+t1.d+t1.c end<13),t1.e) FROM t1 WHERE t1.e not between f and 19}
+} {50000}
+do_test randexpr-2.508 {
+  db eval {SELECT a*coalesce((select t1.d+17 from t1 where 13*case a when t1.a then 11 else  -t1.a-d-11-coalesce((select max(e-coalesce((select d from t1 where a<=t1.d*(coalesce((select max( -t1.d) from t1 where t1.f not in (11, -t1.d,17) and t1.a between (13) and c and e not in (t1.b,t1.b,b)),b))), -17)) from t1 where t1.b<>a),19)+t1.d+t1.c end<13),t1.e) FROM t1 WHERE NOT (t1.e not between f and 19)}
+} {}
+do_test randexpr-2.509 {
+  db eval {SELECT 17 | case case when exists(select 1 from t1 where (not t1.d between a and f)) then t1.e when not (b=coalesce((select ~t1.c-case when (select (count(*))*(count(distinct t1.f)) from t1)>=11 then b else 19 end from t1 where not not (13<=e) and t1.b=t1.b),13)) then coalesce((select max((abs(11)/abs(t1.b))) from t1 where t1.a not between t1.e and t1.b),(t1.a)) else t1.a end when c then 13 else 19 end+b FROM t1 WHERE ~t1.a+t1.d+c*17 | (select max(t1.d)*abs(case (max(t1.f)+count(distinct t1.b))*(count(distinct f)) when count(distinct e) then  -min(t1.e) else min(t1.f) end)+max(b)+count(distinct t1.d) from t1) in (select max(t1.d*(19)) from t1 union select count(distinct case when t1.c+b in (select max(e) from t1 union select cast(avg(f) AS integer) from t1) then (17) when e not in (c,d,19) or 11=19 then (19) else t1.e end+t1.a) from t1)}
+} {}
+do_test randexpr-2.510 {
+  db eval {SELECT 17 | case case when exists(select 1 from t1 where (not t1.d between a and f)) then t1.e when not (b=coalesce((select ~t1.c-case when (select (count(*))*(count(distinct t1.f)) from t1)>=11 then b else 19 end from t1 where not not (13<=e) and t1.b=t1.b),13)) then coalesce((select max((abs(11)/abs(t1.b))) from t1 where t1.a not between t1.e and t1.b),(t1.a)) else t1.a end when c then 13 else 19 end+b FROM t1 WHERE NOT (~t1.a+t1.d+c*17 | (select max(t1.d)*abs(case (max(t1.f)+count(distinct t1.b))*(count(distinct f)) when count(distinct e) then  -min(t1.e) else min(t1.f) end)+max(b)+count(distinct t1.d) from t1) in (select max(t1.d*(19)) from t1 union select count(distinct case when t1.c+b in (select max(e) from t1 union select cast(avg(f) AS integer) from t1) then (17) when e not in (c,d,19) or 11=19 then (19) else t1.e end+t1.a) from t1))}
+} {219}
+do_test randexpr-2.511 {
+  db eval {SELECT 17 & case case when exists(select 1 from t1 where (not t1.d between a and f)) then t1.e when not (b=coalesce((select ~t1.c-case when (select (count(*))*(count(distinct t1.f)) from t1)>=11 then b else 19 end from t1 where not not (13<=e) and t1.b=t1.b),13)) then coalesce((select max((abs(11)/abs(t1.b))) from t1 where t1.a not between t1.e and t1.b),(t1.a)) else t1.a end when c then 13 else 19 end+b FROM t1 WHERE NOT (~t1.a+t1.d+c*17 | (select max(t1.d)*abs(case (max(t1.f)+count(distinct t1.b))*(count(distinct f)) when count(distinct e) then  -min(t1.e) else min(t1.f) end)+max(b)+count(distinct t1.d) from t1) in (select max(t1.d*(19)) from t1 union select count(distinct case when t1.c+b in (select max(e) from t1 union select cast(avg(f) AS integer) from t1) then (17) when e not in (c,d,19) or 11=19 then (19) else t1.e end+t1.a) from t1))}
+} {17}
+do_test randexpr-2.512 {
+  db eval {SELECT case when coalesce((select max((+t1.a+17+11+case when (abs(19)/abs(t1.a)) in (select ~(case count(*) when min( -c) then count(distinct b) else count(*) end) from t1 union select  -min(t1.e) from t1) or 13>=t1.a then case c when 13 then t1.d else e end when  -t1.e<=t1.a then t1.c else t1.c end)) from t1 where not t1.c= -t1.f),b)=f and t1.e<=(t1.f) then ~(t1.a) when 17=e then 19 else t1.b end FROM t1 WHERE case when  -t1.f in (select (13) from t1 union select coalesce((select max(coalesce((select (~13) from t1 where t1.b>(11)),e*t1.c)) from t1 where (not (abs(t1.c)/abs(a))>=c)),t1.d) from t1) then  -t1.e+ -a-coalesce((select t1.d from t1 where not exists(select 1 from t1 where  -b=t1.f-f)),t1.c)*17 when 19<=11 then 19 else t1.d end>=b}
+} {200}
+do_test randexpr-2.513 {
+  db eval {SELECT case when coalesce((select max((+t1.a+17+11+case when (abs(19)/abs(t1.a)) in (select ~(case count(*) when min( -c) then count(distinct b) else count(*) end) from t1 union select  -min(t1.e) from t1) or 13>=t1.a then case c when 13 then t1.d else e end when  -t1.e<=t1.a then t1.c else t1.c end)) from t1 where not t1.c= -t1.f),b)=f and t1.e<=(t1.f) then ~(t1.a) when 17=e then 19 else t1.b end FROM t1 WHERE NOT (case when  -t1.f in (select (13) from t1 union select coalesce((select max(coalesce((select (~13) from t1 where t1.b>(11)),e*t1.c)) from t1 where (not (abs(t1.c)/abs(a))>=c)),t1.d) from t1) then  -t1.e+ -a-coalesce((select t1.d from t1 where not exists(select 1 from t1 where  -b=t1.f-f)),t1.c)*17 when 19<=11 then 19 else t1.d end>=b)}
+} {}
+do_test randexpr-2.514 {
+  db eval {SELECT +(case when t1.a<=a then t1.d when ((abs(t1.a)/abs((coalesce((select t1.e from t1 where t1.f>=t1.c),e))))) between coalesce((select case when not 19> -11 then (case when t1.d in (select e from t1 union select f from t1) then  -d when t1.b not between 11 and t1.d then (19) else c end) else t1.e end from t1 where not exists(select 1 from t1 where e not in (t1.d,a, -a)) and t1.d>t1.b),a) and t1.a then d else b end)-17 FROM t1 WHERE (+e*t1.d in (select (+abs(abs(min(~+b)-min(a)-case  -case abs(max(t1.c)) when max(e) then count(*) else count(distinct 19) end- -max(t1.a) when count(distinct t1.a) then (count(*)) else min(t1.f) end)))-(count(*)) from t1 union select max(t1.f) from t1) or ~c*case when not exists(select 1 from t1 where t1.f in (t1.f,t1.a,d)) then t1.c when t1.c<t1.d then (17) else e end+t1.b |  -((c)) not between a and 17)}
+} {383}
+do_test randexpr-2.515 {
+  db eval {SELECT +(case when t1.a<=a then t1.d when ((abs(t1.a)/abs((coalesce((select t1.e from t1 where t1.f>=t1.c),e))))) between coalesce((select case when not 19> -11 then (case when t1.d in (select e from t1 union select f from t1) then  -d when t1.b not between 11 and t1.d then (19) else c end) else t1.e end from t1 where not exists(select 1 from t1 where e not in (t1.d,a, -a)) and t1.d>t1.b),a) and t1.a then d else b end)-17 FROM t1 WHERE NOT ((+e*t1.d in (select (+abs(abs(min(~+b)-min(a)-case  -case abs(max(t1.c)) when max(e) then count(*) else count(distinct 19) end- -max(t1.a) when count(distinct t1.a) then (count(*)) else min(t1.f) end)))-(count(*)) from t1 union select max(t1.f) from t1) or ~c*case when not exists(select 1 from t1 where t1.f in (t1.f,t1.a,d)) then t1.c when t1.c<t1.d then (17) else e end+t1.b |  -((c)) not between a and 17))}
+} {}
+do_test randexpr-2.516 {
+  db eval {SELECT  -case when coalesce((select max(case when ~(+case when t1.b*t1.b>t1.e then t1.a when  -d=t1.e or t1.c not between t1.c and e then c else t1.d end)- -17 in (select a from t1 union select  -t1.e from t1) then 19 else a end) from t1 where t1.a in (select  -a from t1 union select 19 from t1)),t1.a)<>t1.d then 13 when a in (19,d,c) and a<11 then t1.a else b end+t1.a-t1.b FROM t1 WHERE c>=t1.e}
+} {}
+do_test randexpr-2.517 {
+  db eval {SELECT  -case when coalesce((select max(case when ~(+case when t1.b*t1.b>t1.e then t1.a when  -d=t1.e or t1.c not between t1.c and e then c else t1.d end)- -17 in (select a from t1 union select  -t1.e from t1) then 19 else a end) from t1 where t1.a in (select  -a from t1 union select 19 from t1)),t1.a)<>t1.d then 13 when a in (19,d,c) and a<11 then t1.a else b end+t1.a-t1.b FROM t1 WHERE NOT (c>=t1.e)}
+} {-113}
+do_test randexpr-2.518 {
+  db eval {SELECT coalesce((select case coalesce((select max(19) from t1 where +case when exists(select 1 from t1 where not exists(select 1 from t1 where not c in (case when e>=c then b else t1.b end,t1.b,t1.e))) then a-f+13-t1.f+19 when f>=t1.e then t1.e else t1.c end+17 in (select count(distinct 19) from t1 union select cast(avg(b) AS integer) | count(distinct 11)-count(*) from t1)),a) when b then 17 else c end from t1 where t1.f<=t1.e),t1.e) FROM t1 WHERE ~~+d-d*19*case ~(select count(*) from t1)-11 when 19 then  -+(abs(t1.a)/abs(a)) | (f)-(abs(+t1.c)/abs((select ~+max(13*e)+min(f)*count(distinct 13) from t1)))*t1.a else  -t1.f-t1.b end*t1.a not between  -e and t1.e}
+} {500}
+do_test randexpr-2.519 {
+  db eval {SELECT coalesce((select case coalesce((select max(19) from t1 where +case when exists(select 1 from t1 where not exists(select 1 from t1 where not c in (case when e>=c then b else t1.b end,t1.b,t1.e))) then a-f+13-t1.f+19 when f>=t1.e then t1.e else t1.c end+17 in (select count(distinct 19) from t1 union select cast(avg(b) AS integer) | count(distinct 11)-count(*) from t1)),a) when b then 17 else c end from t1 where t1.f<=t1.e),t1.e) FROM t1 WHERE NOT (~~+d-d*19*case ~(select count(*) from t1)-11 when 19 then  -+(abs(t1.a)/abs(a)) | (f)-(abs(+t1.c)/abs((select ~+max(13*e)+min(f)*count(distinct 13) from t1)))*t1.a else  -t1.f-t1.b end*t1.a not between  -e and t1.e)}
+} {}
+do_test randexpr-2.520 {
+  db eval {SELECT coalesce((select case coalesce((select max(19) from t1 where +case when exists(select 1 from t1 where not exists(select 1 from t1 where not c in (case when e>=c then b else t1.b end,t1.b,t1.e))) then a-f+13-t1.f+19 when f>=t1.e then t1.e else t1.c end+17 in (select count(distinct 19) from t1 union select cast(avg(b) AS integer) & count(distinct 11)-count(*) from t1)),a) when b then 17 else c end from t1 where t1.f<=t1.e),t1.e) FROM t1 WHERE ~~+d-d*19*case ~(select count(*) from t1)-11 when 19 then  -+(abs(t1.a)/abs(a)) | (f)-(abs(+t1.c)/abs((select ~+max(13*e)+min(f)*count(distinct 13) from t1)))*t1.a else  -t1.f-t1.b end*t1.a not between  -e and t1.e}
+} {500}
+do_test randexpr-2.521 {
+  db eval {SELECT a*17+ -case when not exists(select 1 from t1 where 11=t1.d) then 11-b when case when t1.c<>t1.c++t1.a or t1.c*t1.a+d-f between 19 and case when not t1.e>=11 and t1.b<=t1.c then coalesce((select max(a) from t1 where 19=11),f) when f not in (t1.b,13,b) then f else  -d end then d else t1.c end in (select 17 from t1 union select d from t1) then 17 else b end FROM t1 WHERE  -(+~ -d++c+b)>=t1.a-case when coalesce((select t1.a-(select max(t1.e) from t1)-(abs(11)/abs(17))+t1.d from t1 where not (not exists(select 1 from t1 where c=t1.c)) or t1.b in (select abs(max(11)+count(*)) from t1 union select ((max(a))) from t1)),f)>=a then t1.f when d not in (11,c,17) then a else 19 end}
+} {}
+do_test randexpr-2.522 {
+  db eval {SELECT a*17+ -case when not exists(select 1 from t1 where 11=t1.d) then 11-b when case when t1.c<>t1.c++t1.a or t1.c*t1.a+d-f between 19 and case when not t1.e>=11 and t1.b<=t1.c then coalesce((select max(a) from t1 where 19=11),f) when f not in (t1.b,13,b) then f else  -d end then d else t1.c end in (select 17 from t1 union select d from t1) then 17 else b end FROM t1 WHERE NOT ( -(+~ -d++c+b)>=t1.a-case when coalesce((select t1.a-(select max(t1.e) from t1)-(abs(11)/abs(17))+t1.d from t1 where not (not exists(select 1 from t1 where c=t1.c)) or t1.b in (select abs(max(11)+count(*)) from t1 union select ((max(a))) from t1)),f)>=a then t1.f when d not in (11,c,17) then a else 19 end)}
+} {1889}
+do_test randexpr-2.523 {
+  db eval {SELECT coalesce((select max(t1.b+a) from t1 where case (select count(distinct b*case when t1.f*+~a | b+17*13+a+11 in (select c from t1 union select d from t1) then t1.f else t1.b end) from t1) when t1.a then f else t1.c end+ -f between 17 and d and b in (13,t1.e,t1.e) and d not between t1.f and d),13) FROM t1 WHERE coalesce((select max(t1.d) from t1 where (coalesce((select ~t1.c from t1 where  -t1.a<=c*+d or not (case when (t1.b)>=t1.d then t1.e when 17<d then (a) else 11 end>a and a<>e and t1.e<t1.e) or 19<=t1.c),(c))+b*t1.c+17*t1.a | 11+(t1.f)>=19)),19)<>t1.c}
+} {13}
+do_test randexpr-2.524 {
+  db eval {SELECT coalesce((select max(t1.b+a) from t1 where case (select count(distinct b*case when t1.f*+~a | b+17*13+a+11 in (select c from t1 union select d from t1) then t1.f else t1.b end) from t1) when t1.a then f else t1.c end+ -f between 17 and d and b in (13,t1.e,t1.e) and d not between t1.f and d),13) FROM t1 WHERE NOT (coalesce((select max(t1.d) from t1 where (coalesce((select ~t1.c from t1 where  -t1.a<=c*+d or not (case when (t1.b)>=t1.d then t1.e when 17<d then (a) else 11 end>a and a<>e and t1.e<t1.e) or 19<=t1.c),(c))+b*t1.c+17*t1.a | 11+(t1.f)>=19)),19)<>t1.c)}
+} {}
+do_test randexpr-2.525 {
+  db eval {SELECT coalesce((select max(t1.b+a) from t1 where case (select count(distinct b*case when t1.f*+~a & b+17*13+a+11 in (select c from t1 union select d from t1) then t1.f else t1.b end) from t1) when t1.a then f else t1.c end+ -f between 17 and d and b in (13,t1.e,t1.e) and d not between t1.f and d),13) FROM t1 WHERE coalesce((select max(t1.d) from t1 where (coalesce((select ~t1.c from t1 where  -t1.a<=c*+d or not (case when (t1.b)>=t1.d then t1.e when 17<d then (a) else 11 end>a and a<>e and t1.e<t1.e) or 19<=t1.c),(c))+b*t1.c+17*t1.a | 11+(t1.f)>=19)),19)<>t1.c}
+} {13}
+do_test randexpr-2.526 {
+  db eval {SELECT coalesce((select (t1.b-(abs(t1.b-~17 | 13+13)/abs(t1.e))* -t1.a- -19+t1.d) from t1 where exists(select 1 from t1 where 19 in (select t1.a from t1 union select  -19 from t1) and a in (c,e,13) and 19 in (select t1.a from t1 union select b from t1) or 13 in (select 19 from t1 union select d from t1) and not t1.c=t1.f or ( -t1.d between e and 19) or  -((17))<>c)),e) FROM t1 WHERE ((abs(a)/abs(f-a)) between  -(abs(++t1.b)/abs(13)) and t1.c)}
+} {619}
+do_test randexpr-2.527 {
+  db eval {SELECT coalesce((select (t1.b-(abs(t1.b-~17 | 13+13)/abs(t1.e))* -t1.a- -19+t1.d) from t1 where exists(select 1 from t1 where 19 in (select t1.a from t1 union select  -19 from t1) and a in (c,e,13) and 19 in (select t1.a from t1 union select b from t1) or 13 in (select 19 from t1 union select d from t1) and not t1.c=t1.f or ( -t1.d between e and 19) or  -((17))<>c)),e) FROM t1 WHERE NOT (((abs(a)/abs(f-a)) between  -(abs(++t1.b)/abs(13)) and t1.c))}
+} {}
+do_test randexpr-2.528 {
+  db eval {SELECT coalesce((select (t1.b-(abs(t1.b-~17 & 13+13)/abs(t1.e))* -t1.a- -19+t1.d) from t1 where exists(select 1 from t1 where 19 in (select t1.a from t1 union select  -19 from t1) and a in (c,e,13) and 19 in (select t1.a from t1 union select b from t1) or 13 in (select 19 from t1 union select d from t1) and not t1.c=t1.f or ( -t1.d between e and 19) or  -((17))<>c)),e) FROM t1 WHERE ((abs(a)/abs(f-a)) between  -(abs(++t1.b)/abs(13)) and t1.c)}
+} {619}
+do_test randexpr-2.529 {
+  db eval {SELECT case when coalesce((select max(c- -b-t1.c) from t1 where t1.d between 11 and case when b | ~t1.e*(t1.f)>t1.f then a when (19<13) and not exists(select 1 from t1 where f not in (t1.a,((b)),17)) or d in ((a),t1.c,19) or (f)>13 then t1.e else f end*t1.a),t1.a)>=e then t1.d when t1.e>=c then 13 else f end FROM t1 WHERE +11 between case when t1.f>t1.c then t1.b else t1.b end and ((select count(distinct case when t1.a between (abs(coalesce((select t1.b from t1 where case when t1.d<=(abs((c))/abs(coalesce((select max(17) from t1 where 11=b),13))) then 17 when b=t1.e then d else e end-13>=(e)), -d))/abs(b)) and b then t1.d when (b) in (13,t1.b,t1.a) then f else 19 end) from t1))-d}
+} {}
+do_test randexpr-2.530 {
+  db eval {SELECT case when coalesce((select max(c- -b-t1.c) from t1 where t1.d between 11 and case when b | ~t1.e*(t1.f)>t1.f then a when (19<13) and not exists(select 1 from t1 where f not in (t1.a,((b)),17)) or d in ((a),t1.c,19) or (f)>13 then t1.e else f end*t1.a),t1.a)>=e then t1.d when t1.e>=c then 13 else f end FROM t1 WHERE NOT (+11 between case when t1.f>t1.c then t1.b else t1.b end and ((select count(distinct case when t1.a between (abs(coalesce((select t1.b from t1 where case when t1.d<=(abs((c))/abs(coalesce((select max(17) from t1 where 11=b),13))) then 17 when b=t1.e then d else e end-13>=(e)), -d))/abs(b)) and b then t1.d when (b) in (13,t1.b,t1.a) then f else 19 end) from t1))-d)}
+} {13}
+do_test randexpr-2.531 {
+  db eval {SELECT case when coalesce((select max(c- -b-t1.c) from t1 where t1.d between 11 and case when b & ~t1.e*(t1.f)>t1.f then a when (19<13) and not exists(select 1 from t1 where f not in (t1.a,((b)),17)) or d in ((a),t1.c,19) or (f)>13 then t1.e else f end*t1.a),t1.a)>=e then t1.d when t1.e>=c then 13 else f end FROM t1 WHERE NOT (+11 between case when t1.f>t1.c then t1.b else t1.b end and ((select count(distinct case when t1.a between (abs(coalesce((select t1.b from t1 where case when t1.d<=(abs((c))/abs(coalesce((select max(17) from t1 where 11=b),13))) then 17 when b=t1.e then d else e end-13>=(e)), -d))/abs(b)) and b then t1.d when (b) in (13,t1.b,t1.a) then f else 19 end) from t1))-d)}
+} {13}
+do_test randexpr-2.532 {
+  db eval {SELECT (select ~abs(max(case when (case when ( -t1.a>e) then t1.a else (select (~count(*) | max(case when t1.d<>c then  -+13 else case when b between 19 and 17 or (t1.a)>=13 then 19 else t1.c end end)) from t1) end<>t1.e) then 19 when c*e+t1.b<=19 then f else (t1.d) end | b)) from t1)+c FROM t1 WHERE f | t1.a+b>=t1.d}
+} {80}
+do_test randexpr-2.533 {
+  db eval {SELECT (select ~abs(max(case when (case when ( -t1.a>e) then t1.a else (select (~count(*) | max(case when t1.d<>c then  -+13 else case when b between 19 and 17 or (t1.a)>=13 then 19 else t1.c end end)) from t1) end<>t1.e) then 19 when c*e+t1.b<=19 then f else (t1.d) end | b)) from t1)+c FROM t1 WHERE NOT (f | t1.a+b>=t1.d)}
+} {}
+do_test randexpr-2.534 {
+  db eval {SELECT (select ~abs(max(case when (case when ( -t1.a>e) then t1.a else (select (~count(*) & max(case when t1.d<>c then  -+13 else case when b between 19 and 17 or (t1.a)>=13 then 19 else t1.c end end)) from t1) end<>t1.e) then 19 when c*e+t1.b<=19 then f else (t1.d) end & b)) from t1)+c FROM t1 WHERE f | t1.a+b>=t1.d}
+} {299}
+do_test randexpr-2.535 {
+  db eval {SELECT  -case when ~case t1.f+13+t1.a when coalesce((select max(17) from t1 where coalesce((select max(( -11)) from t1 where not exists(select 1 from t1 where case case when not exists(select 1 from t1 where (a in (select f from t1 union select b from t1))) then d when (a) in (f,t1.a, -f) then t1.a else b end when t1.d then c else t1.b end<>a and 11= -t1.a and 19=a)),11) in (select c from t1 union select 17 from t1)),t1.c) then e else 11 end=t1.d then 17 else 17 end FROM t1 WHERE not exists(select 1 from t1 where f<d or exists(select 1 from t1 where ~t1.a not between coalesce((select max(case b+(select  -case max(t1.b)- -count(distinct c)*max(t1.b) when min(17) then (count(*)) else cast(avg(t1.d) AS integer) end*max(f) from t1)+case when (abs((abs(19)/abs(e)))/abs(t1.d))*t1.a not between b and 13 then e else (e) end when d then b else 17 end) from t1 where t1.c between b and t1.f),t1.b) and a))}
+} {}
+do_test randexpr-2.536 {
+  db eval {SELECT  -case when ~case t1.f+13+t1.a when coalesce((select max(17) from t1 where coalesce((select max(( -11)) from t1 where not exists(select 1 from t1 where case case when not exists(select 1 from t1 where (a in (select f from t1 union select b from t1))) then d when (a) in (f,t1.a, -f) then t1.a else b end when t1.d then c else t1.b end<>a and 11= -t1.a and 19=a)),11) in (select c from t1 union select 17 from t1)),t1.c) then e else 11 end=t1.d then 17 else 17 end FROM t1 WHERE NOT (not exists(select 1 from t1 where f<d or exists(select 1 from t1 where ~t1.a not between coalesce((select max(case b+(select  -case max(t1.b)- -count(distinct c)*max(t1.b) when min(17) then (count(*)) else cast(avg(t1.d) AS integer) end*max(f) from t1)+case when (abs((abs(19)/abs(e)))/abs(t1.d))*t1.a not between b and 13 then e else (e) end when d then b else 17 end) from t1 where t1.c between b and t1.f),t1.b) and a)))}
+} {-17}
+do_test randexpr-2.537 {
+  db eval {SELECT t1.f-t1.b | coalesce((select max((select max(case  -case when t1.f>coalesce((select max(case when (17> -t1.e) then f when 19=t1.a then t1.a else a end) from t1 where t1.c<=t1.e or (t1.d)>=t1.d),t1.a)+a then f when b not in (e,t1.e,t1.b) or t1.f not in (f,t1.c, -d) or e<=13 then f else (17) end-t1.d+t1.f*13 when (t1.c) then b else  -t1.e end) from t1)) from t1 where t1.b in (t1.b,t1.f,(t1.e))),t1.e)*(a) FROM t1 WHERE t1.f<=a}
+} {}
+do_test randexpr-2.538 {
+  db eval {SELECT t1.f-t1.b | coalesce((select max((select max(case  -case when t1.f>coalesce((select max(case when (17> -t1.e) then f when 19=t1.a then t1.a else a end) from t1 where t1.c<=t1.e or (t1.d)>=t1.d),t1.a)+a then f when b not in (e,t1.e,t1.b) or t1.f not in (f,t1.c, -d) or e<=13 then f else (17) end-t1.d+t1.f*13 when (t1.c) then b else  -t1.e end) from t1)) from t1 where t1.b in (t1.b,t1.f,(t1.e))),t1.e)*(a) FROM t1 WHERE NOT (t1.f<=a)}
+} {-49744}
+do_test randexpr-2.539 {
+  db eval {SELECT t1.f-t1.b & coalesce((select max((select max(case  -case when t1.f>coalesce((select max(case when (17> -t1.e) then f when 19=t1.a then t1.a else a end) from t1 where t1.c<=t1.e or (t1.d)>=t1.d),t1.a)+a then f when b not in (e,t1.e,t1.b) or t1.f not in (f,t1.c, -d) or e<=13 then f else (17) end-t1.d+t1.f*13 when (t1.c) then b else  -t1.e end) from t1)) from t1 where t1.b in (t1.b,t1.f,(t1.e))),t1.e)*(a) FROM t1 WHERE NOT (t1.f<=a)}
+} {144}
+do_test randexpr-2.540 {
+  db eval {SELECT t1.e+t1.a*case when not t1.f<=d-(c)*13 then t1.e+13*(abs(case when exists(select 1 from t1 where (select  -count(*)* -max(t1.a) | ((((cast(avg((e)) AS integer))))) from t1)>=+c+b) then +11 when t1.a not between t1.c and c then t1.b else  -19 end)/abs(b)) | (19) when not exists(select 1 from t1 where t1.c between t1.e and t1.c) then d else t1.f end FROM t1 WHERE b in (+c,case b when f*~19-t1.b*t1.f then t1.f else a end,a | t1.a)}
+} {}
+do_test randexpr-2.541 {
+  db eval {SELECT t1.e+t1.a*case when not t1.f<=d-(c)*13 then t1.e+13*(abs(case when exists(select 1 from t1 where (select  -count(*)* -max(t1.a) | ((((cast(avg((e)) AS integer))))) from t1)>=+c+b) then +11 when t1.a not between t1.c and c then t1.b else  -19 end)/abs(b)) | (19) when not exists(select 1 from t1 where t1.c between t1.e and t1.c) then d else t1.f end FROM t1 WHERE NOT (b in (+c,case b when f*~19-t1.b*t1.f then t1.f else a end,a | t1.a))}
+} {50800}
+do_test randexpr-2.542 {
+  db eval {SELECT t1.e+t1.a*case when not t1.f<=d-(c)*13 then t1.e+13*(abs(case when exists(select 1 from t1 where (select  -count(*)* -max(t1.a) & ((((cast(avg((e)) AS integer))))) from t1)>=+c+b) then +11 when t1.a not between t1.c and c then t1.b else  -19 end)/abs(b)) & (19) when not exists(select 1 from t1 where t1.c between t1.e and t1.c) then d else t1.f end FROM t1 WHERE NOT (b in (+c,case b when f*~19-t1.b*t1.f then t1.f else a end,a | t1.a))}
+} {600}
+do_test randexpr-2.543 {
+  db eval {SELECT t1.e++a-c-a+coalesce((select t1.e from t1 where 11=case when t1.f not between 13 and t1.b+a*t1.c then 17 when (select min((select cast(avg(17) AS integer)*max(d)-(cast(avg(c) AS integer))*count(distinct t1.b) from t1)) from t1)>=case coalesce((select t1.b | e from t1 where t1.d in (t1.c,17,t1.c)),a) when 13 then t1.a else 19 end then t1.a else e end),t1.d) FROM t1 WHERE +t1.a*t1.c between case when case coalesce((select max(+t1.f-t1.b*(select min((b))+count(distinct c) from t1)) from t1 where  -b between 11 and t1.b or b in (select  -max(19) from t1 union select  -count(*)+ -count(*) from t1) and 17=d),13)-t1.b*a when t1.b then (17) else c end>b then e else 11 end and ( -b) or t1.e not between a and 11}
+} {600}
+do_test randexpr-2.544 {
+  db eval {SELECT t1.e++a-c-a+coalesce((select t1.e from t1 where 11=case when t1.f not between 13 and t1.b+a*t1.c then 17 when (select min((select cast(avg(17) AS integer)*max(d)-(cast(avg(c) AS integer))*count(distinct t1.b) from t1)) from t1)>=case coalesce((select t1.b | e from t1 where t1.d in (t1.c,17,t1.c)),a) when 13 then t1.a else 19 end then t1.a else e end),t1.d) FROM t1 WHERE NOT (+t1.a*t1.c between case when case coalesce((select max(+t1.f-t1.b*(select min((b))+count(distinct c) from t1)) from t1 where  -b between 11 and t1.b or b in (select  -max(19) from t1 union select  -count(*)+ -count(*) from t1) and 17=d),13)-t1.b*a when t1.b then (17) else c end>b then e else 11 end and ( -b) or t1.e not between a and 11)}
+} {}
+do_test randexpr-2.545 {
+  db eval {SELECT t1.e++a-c-a+coalesce((select t1.e from t1 where 11=case when t1.f not between 13 and t1.b+a*t1.c then 17 when (select min((select cast(avg(17) AS integer)*max(d)-(cast(avg(c) AS integer))*count(distinct t1.b) from t1)) from t1)>=case coalesce((select t1.b & e from t1 where t1.d in (t1.c,17,t1.c)),a) when 13 then t1.a else 19 end then t1.a else e end),t1.d) FROM t1 WHERE +t1.a*t1.c between case when case coalesce((select max(+t1.f-t1.b*(select min((b))+count(distinct c) from t1)) from t1 where  -b between 11 and t1.b or b in (select  -max(19) from t1 union select  -count(*)+ -count(*) from t1) and 17=d),13)-t1.b*a when t1.b then (17) else c end>b then e else 11 end and ( -b) or t1.e not between a and 11}
+} {600}
+do_test randexpr-2.546 {
+  db eval {SELECT (select case ~case count(*) when (count(distinct d)*min(17)+min(13)+min(11))-max(t1.a) then count(distinct  -13) else min(t1.c) end-max( - -t1.d)*count(*) when  -count(*) then count(*) else (cast(avg(e) AS integer)) end from t1)-case when a>b then t1.d+case when (e= -t1.a) and c<c then coalesce((select t1.f+f from t1 where t1.b not in (f,13,t1.b)),t1.d) else d end+ -t1.a-c+e else 19 end FROM t1 WHERE t1.b not between a and 11 and t1.c in (select +case count(*) when count(*)*cast(avg(13) AS integer) then min(~b-c-t1.e*(abs(a)/abs(case when t1.d>=(13) and t1.e<=c then 11 else t1.f end | t1.a)))-abs(abs(count(*)))-+~min(t1.e)+~count(distinct 11)* -count(*) | max(t1.d)-( -cast(avg(13) AS integer))*(min(e)) else  -min(t1.a) end from t1 union select max(t1.f) from t1)}
+} {}
+do_test randexpr-2.547 {
+  db eval {SELECT (select case ~case count(*) when (count(distinct d)*min(17)+min(13)+min(11))-max(t1.a) then count(distinct  -13) else min(t1.c) end-max( - -t1.d)*count(*) when  -count(*) then count(*) else (cast(avg(e) AS integer)) end from t1)-case when a>b then t1.d+case when (e= -t1.a) and c<c then coalesce((select t1.f+f from t1 where t1.b not in (f,13,t1.b)),t1.d) else d end+ -t1.a-c+e else 19 end FROM t1 WHERE NOT (t1.b not between a and 11 and t1.c in (select +case count(*) when count(*)*cast(avg(13) AS integer) then min(~b-c-t1.e*(abs(a)/abs(case when t1.d>=(13) and t1.e<=c then 11 else t1.f end | t1.a)))-abs(abs(count(*)))-+~min(t1.e)+~count(distinct 11)* -count(*) | max(t1.d)-( -cast(avg(13) AS integer))*(min(e)) else  -min(t1.a) end from t1 union select max(t1.f) from t1))}
+} {481}
+do_test randexpr-2.548 {
+  db eval {SELECT case ~case 19 when t1.e then f else 19*f end*case when exists(select 1 from t1 where t1.e not between t1.f-~case case  -e when f then t1.d else case when t1.b in (t1.e,f,11) then e when 11<=d then  -t1.d else 17 end end when 13 then 19 else c end and 19) then coalesce((select t1.b from t1 where not exists(select 1 from t1 where (a<>b))),b) else t1.c end | e+t1.b when a then f else 19 end FROM t1 WHERE 17 in (select count(distinct t1.f)+~min(coalesce((select max(e*f-case when case when 11<>e and t1.e<=t1.d or (t1.d)<=t1.e then d when ( -17) not between  -t1.c and t1.a then coalesce((select max((19)) from t1 where  -b between e and 11), -a) else d end in (b,t1.d,a) and 19 in (13,13,t1.c) or b not in (f,(t1.e),19) then t1.c when 17 not in ((19),(t1.b),f) then +t1.d else f end) from t1 where (not a between 19 and d and (d>a))),d)) from t1 union select cast(avg(f) AS integer) from t1)}
+} {}
+do_test randexpr-2.549 {
+  db eval {SELECT case ~case 19 when t1.e then f else 19*f end*case when exists(select 1 from t1 where t1.e not between t1.f-~case case  -e when f then t1.d else case when t1.b in (t1.e,f,11) then e when 11<=d then  -t1.d else 17 end end when 13 then 19 else c end and 19) then coalesce((select t1.b from t1 where not exists(select 1 from t1 where (a<>b))),b) else t1.c end | e+t1.b when a then f else 19 end FROM t1 WHERE NOT (17 in (select count(distinct t1.f)+~min(coalesce((select max(e*f-case when case when 11<>e and t1.e<=t1.d or (t1.d)<=t1.e then d when ( -17) not between  -t1.c and t1.a then coalesce((select max((19)) from t1 where  -b between e and 11), -a) else d end in (b,t1.d,a) and 19 in (13,13,t1.c) or b not in (f,(t1.e),19) then t1.c when 17 not in ((19),(t1.b),f) then +t1.d else f end) from t1 where (not a between 19 and d and (d>a))),d)) from t1 union select cast(avg(f) AS integer) from t1))}
+} {19}
+do_test randexpr-2.550 {
+  db eval {SELECT case ~case 19 when t1.e then f else 19*f end*case when exists(select 1 from t1 where t1.e not between t1.f-~case case  -e when f then t1.d else case when t1.b in (t1.e,f,11) then e when 11<=d then  -t1.d else 17 end end when 13 then 19 else c end and 19) then coalesce((select t1.b from t1 where not exists(select 1 from t1 where (a<>b))),b) else t1.c end & e+t1.b when a then f else 19 end FROM t1 WHERE NOT (17 in (select count(distinct t1.f)+~min(coalesce((select max(e*f-case when case when 11<>e and t1.e<=t1.d or (t1.d)<=t1.e then d when ( -17) not between  -t1.c and t1.a then coalesce((select max((19)) from t1 where  -b between e and 11), -a) else d end in (b,t1.d,a) and 19 in (13,13,t1.c) or b not in (f,(t1.e),19) then t1.c when 17 not in ((19),(t1.b),f) then +t1.d else f end) from t1 where (not a between 19 and d and (d>a))),d)) from t1 union select cast(avg(f) AS integer) from t1))}
+} {19}
+do_test randexpr-2.551 {
+  db eval {SELECT (abs(11*coalesce((select max(t1.a) from t1 where d>=case when coalesce((select case when not exists(select 1 from t1 where  -d in (select b-(abs(13)/abs(t1.e)) from t1 union select e from t1)) then ~c when not exists(select 1 from t1 where not exists(select 1 from t1 where  -t1.d in (select cast(avg(c) AS integer) | count(distinct e)+max( -t1.d)-(max(f)) from t1 union select count(*) from t1))) then t1.a else e end from t1 where exists(select 1 from t1 where t1.f between d and t1.b) or 17 in (11,17,d)),11) not between t1.c and t1.d then 17 when 13=t1.a then 19 else (13) end), -t1.b)-e)/abs(a)) FROM t1 WHERE t1.c+t1.c=t1.f}
+} {6}
+do_test randexpr-2.552 {
+  db eval {SELECT (abs(11*coalesce((select max(t1.a) from t1 where d>=case when coalesce((select case when not exists(select 1 from t1 where  -d in (select b-(abs(13)/abs(t1.e)) from t1 union select e from t1)) then ~c when not exists(select 1 from t1 where not exists(select 1 from t1 where  -t1.d in (select cast(avg(c) AS integer) | count(distinct e)+max( -t1.d)-(max(f)) from t1 union select count(*) from t1))) then t1.a else e end from t1 where exists(select 1 from t1 where t1.f between d and t1.b) or 17 in (11,17,d)),11) not between t1.c and t1.d then 17 when 13=t1.a then 19 else (13) end), -t1.b)-e)/abs(a)) FROM t1 WHERE NOT (t1.c+t1.c=t1.f)}
+} {}
+do_test randexpr-2.553 {
+  db eval {SELECT (abs(11*coalesce((select max(t1.a) from t1 where d>=case when coalesce((select case when not exists(select 1 from t1 where  -d in (select b-(abs(13)/abs(t1.e)) from t1 union select e from t1)) then ~c when not exists(select 1 from t1 where not exists(select 1 from t1 where  -t1.d in (select cast(avg(c) AS integer) & count(distinct e)+max( -t1.d)-(max(f)) from t1 union select count(*) from t1))) then t1.a else e end from t1 where exists(select 1 from t1 where t1.f between d and t1.b) or 17 in (11,17,d)),11) not between t1.c and t1.d then 17 when 13=t1.a then 19 else (13) end), -t1.b)-e)/abs(a)) FROM t1 WHERE t1.c+t1.c=t1.f}
+} {6}
+do_test randexpr-2.554 {
+  db eval {SELECT  -t1.a*coalesce((select max(c) from t1 where  -(17 | case when (select cast(avg(17+coalesce((select max(c) from t1 where exists(select 1 from t1 where (coalesce((select max( -f) from t1 where (t1.b<=t1.b)),t1.e)<>e))),f |  -t1.a)) AS integer) from t1) in (13,e,t1.c) then f when (f>e) then b else t1.a end)*c*e not between 19 and t1.b),11)+13-19*(19) FROM t1 WHERE (c<=t1.e)}
+} {-30348}
+do_test randexpr-2.555 {
+  db eval {SELECT  -t1.a*coalesce((select max(c) from t1 where  -(17 | case when (select cast(avg(17+coalesce((select max(c) from t1 where exists(select 1 from t1 where (coalesce((select max( -f) from t1 where (t1.b<=t1.b)),t1.e)<>e))),f |  -t1.a)) AS integer) from t1) in (13,e,t1.c) then f when (f>e) then b else t1.a end)*c*e not between 19 and t1.b),11)+13-19*(19) FROM t1 WHERE NOT ((c<=t1.e))}
+} {}
+do_test randexpr-2.556 {
+  db eval {SELECT  -t1.a*coalesce((select max(c) from t1 where  -(17 & case when (select cast(avg(17+coalesce((select max(c) from t1 where exists(select 1 from t1 where (coalesce((select max( -f) from t1 where (t1.b<=t1.b)),t1.e)<>e))),f &  -t1.a)) AS integer) from t1) in (13,e,t1.c) then f when (f>e) then b else t1.a end)*c*e not between 19 and t1.b),11)+13-19*(19) FROM t1 WHERE (c<=t1.e)}
+} {-30348}
+do_test randexpr-2.557 {
+  db eval {SELECT 19-coalesce((select max(case when 17 | t1.a in (select case case coalesce((select max(t1.b) from t1 where t1.f not between case when  -b in (13,f,a) then a else a end and t1.f or (a not in (d,d,t1.c))),c) when a then t1.e else f end when 13 then 13 else b end from t1 union select 17 from t1) then c when not b not in (d, -t1.e,c) then 17 else b end) from t1 where e not in (17,t1.e,b)),t1.e) FROM t1 WHERE t1.a in (select  -count(*) from t1 union select min((select (cast(avg((select +max(t1.b) from t1)) AS integer)) from t1)+17*c) from t1)}
+} {}
+do_test randexpr-2.558 {
+  db eval {SELECT 19-coalesce((select max(case when 17 | t1.a in (select case case coalesce((select max(t1.b) from t1 where t1.f not between case when  -b in (13,f,a) then a else a end and t1.f or (a not in (d,d,t1.c))),c) when a then t1.e else f end when 13 then 13 else b end from t1 union select 17 from t1) then c when not b not in (d, -t1.e,c) then 17 else b end) from t1 where e not in (17,t1.e,b)),t1.e) FROM t1 WHERE NOT (t1.a in (select  -count(*) from t1 union select min((select (cast(avg((select +max(t1.b) from t1)) AS integer)) from t1)+17*c) from t1))}
+} {-481}
+do_test randexpr-2.559 {
+  db eval {SELECT 19-coalesce((select max(case when 17 & t1.a in (select case case coalesce((select max(t1.b) from t1 where t1.f not between case when  -b in (13,f,a) then a else a end and t1.f or (a not in (d,d,t1.c))),c) when a then t1.e else f end when 13 then 13 else b end from t1 union select 17 from t1) then c when not b not in (d, -t1.e,c) then 17 else b end) from t1 where e not in (17,t1.e,b)),t1.e) FROM t1 WHERE NOT (t1.a in (select  -count(*) from t1 union select min((select (cast(avg((select +max(t1.b) from t1)) AS integer)) from t1)+17*c) from t1))}
+} {-481}
+do_test randexpr-2.560 {
+  db eval {SELECT  -f-coalesce((select max(case a-t1.a when t1.f then 13 else +t1.a-t1.f end) from t1 where (select count(distinct a) from t1)>d),( -~t1.a+17+case when (not exists(select 1 from t1 where c=t1.b and c>t1.d)) then ~coalesce((select t1.f from t1 where t1.e not between t1.b and t1.e),11)+a when b<=t1.d then t1.c else 11 end+t1.b)*d)*17+d FROM t1 WHERE +t1.c in (select max(~case when 17>t1.f then 19 else  -case when d=11 or t1.b> -t1.e or d not in (b,t1.a,t1.e) then e-( -13)+d else 11 end end-t1.d) from t1 union select max(17)+case min(t1.a) | case + -case abs(cast(avg(t1.d) AS integer)) when  -count(*) then count(*) else max(19) end when min(e) then count(*) else cast(avg(t1.c) AS integer) end when min(t1.f) then count(*) else min(b) end from t1)}
+} {}
+do_test randexpr-2.561 {
+  db eval {SELECT  -f-coalesce((select max(case a-t1.a when t1.f then 13 else +t1.a-t1.f end) from t1 where (select count(distinct a) from t1)>d),( -~t1.a+17+case when (not exists(select 1 from t1 where c=t1.b and c>t1.d)) then ~coalesce((select t1.f from t1 where t1.e not between t1.b and t1.e),11)+a when b<=t1.d then t1.c else 11 end+t1.b)*d)*17+d FROM t1 WHERE NOT (+t1.c in (select max(~case when 17>t1.f then 19 else  -case when d=11 or t1.b> -t1.e or d not in (b,t1.a,t1.e) then e-( -13)+d else 11 end end-t1.d) from t1 union select max(17)+case min(t1.a) | case + -case abs(cast(avg(t1.d) AS integer)) when  -count(*) then count(*) else max(19) end when min(e) then count(*) else cast(avg(t1.c) AS integer) end when min(t1.f) then count(*) else min(b) end from t1))}
+} {-2761000}
+do_test randexpr-2.562 {
+  db eval {SELECT coalesce((select 11 from t1 where exists(select 1 from t1 where not exists(select 1 from t1 where not (select +count(*)* -count(distinct case when exists(select 1 from t1 where 13+a=t1.b) then d else 13 end-t1.b) from t1)<=17 | e-13)) or not exists(select 1 from t1 where not t1.e in ((13),17,19) and not t1.d>a and t1.e not between t1.e and b)),coalesce((select max(coalesce((select max(b) from t1 where (b)>11),d)) from t1 where 11> -19),f)-c) FROM t1 WHERE case when  -13 not in (b,(abs(coalesce((select max(case when  -17<>t1.f then b when coalesce((select t1.b from t1 where t1.c in (select (a) from t1 union select c from t1)),17)<=t1.e then b else f end) from t1 where b<=11),t1.c))/abs((d))),19) then t1.b when (exists(select 1 from t1 where not exists(select 1 from t1 where ((13)=e and t1.f between 17 and t1.a) or t1.f between (a) and  -(t1.f)))) and t1.e between b and 13 or b<>(f) then t1.f else d end>=a or d>=13}
+} {11}
+do_test randexpr-2.563 {
+  db eval {SELECT coalesce((select 11 from t1 where exists(select 1 from t1 where not exists(select 1 from t1 where not (select +count(*)* -count(distinct case when exists(select 1 from t1 where 13+a=t1.b) then d else 13 end-t1.b) from t1)<=17 | e-13)) or not exists(select 1 from t1 where not t1.e in ((13),17,19) and not t1.d>a and t1.e not between t1.e and b)),coalesce((select max(coalesce((select max(b) from t1 where (b)>11),d)) from t1 where 11> -19),f)-c) FROM t1 WHERE NOT (case when  -13 not in (b,(abs(coalesce((select max(case when  -17<>t1.f then b when coalesce((select t1.b from t1 where t1.c in (select (a) from t1 union select c from t1)),17)<=t1.e then b else f end) from t1 where b<=11),t1.c))/abs((d))),19) then t1.b when (exists(select 1 from t1 where not exists(select 1 from t1 where ((13)=e and t1.f between 17 and t1.a) or t1.f between (a) and  -(t1.f)))) and t1.e between b and 13 or b<>(f) then t1.f else d end>=a or d>=13)}
+} {}
+do_test randexpr-2.564 {
+  db eval {SELECT coalesce((select 11 from t1 where exists(select 1 from t1 where not exists(select 1 from t1 where not (select +count(*)* -count(distinct case when exists(select 1 from t1 where 13+a=t1.b) then d else 13 end-t1.b) from t1)<=17 & e-13)) or not exists(select 1 from t1 where not t1.e in ((13),17,19) and not t1.d>a and t1.e not between t1.e and b)),coalesce((select max(coalesce((select max(b) from t1 where (b)>11),d)) from t1 where 11> -19),f)-c) FROM t1 WHERE case when  -13 not in (b,(abs(coalesce((select max(case when  -17<>t1.f then b when coalesce((select t1.b from t1 where t1.c in (select (a) from t1 union select c from t1)),17)<=t1.e then b else f end) from t1 where b<=11),t1.c))/abs((d))),19) then t1.b when (exists(select 1 from t1 where not exists(select 1 from t1 where ((13)=e and t1.f between 17 and t1.a) or t1.f between (a) and  -(t1.f)))) and t1.e between b and 13 or b<>(f) then t1.f else d end>=a or d>=13}
+} {11}
+do_test randexpr-2.565 {
+  db eval {SELECT coalesce((select max(coalesce((select max(13+f | c+a) from t1 where 17<t1.a),~case when 17 in (select count(distinct 11) from t1 union select ++cast(avg(a | 11) AS integer)-count(*) from t1) then t1.a else 17 end)) from t1 where case t1.d when 17 then t1.a else 17 end not between 13 and case t1.c when t1.b*case when t1.d<>d then 13 else c end-c then e else t1.e end),c) FROM t1 WHERE exists(select 1 from t1 where t1.a+( -case when exists(select 1 from t1 where exists(select 1 from t1 where b | c-c+t1.d not between 19 and 11)) then coalesce((select t1.c from t1 where c+17 in (f,13,c) or t1.e*coalesce((select case when (not exists(select 1 from t1 where 17>e)) then t1.d else ~t1.e end from t1 where (t1.f not in (19,a,t1.b) or c=f)),c)=c), -11) else e end)<=t1.b)}
+} {300}
+do_test randexpr-2.566 {
+  db eval {SELECT coalesce((select max(coalesce((select max(13+f | c+a) from t1 where 17<t1.a),~case when 17 in (select count(distinct 11) from t1 union select ++cast(avg(a | 11) AS integer)-count(*) from t1) then t1.a else 17 end)) from t1 where case t1.d when 17 then t1.a else 17 end not between 13 and case t1.c when t1.b*case when t1.d<>d then 13 else c end-c then e else t1.e end),c) FROM t1 WHERE NOT (exists(select 1 from t1 where t1.a+( -case when exists(select 1 from t1 where exists(select 1 from t1 where b | c-c+t1.d not between 19 and 11)) then coalesce((select t1.c from t1 where c+17 in (f,13,c) or t1.e*coalesce((select case when (not exists(select 1 from t1 where 17>e)) then t1.d else ~t1.e end from t1 where (t1.f not in (19,a,t1.b) or c=f)),c)=c), -11) else e end)<=t1.b))}
+} {}
+do_test randexpr-2.567 {
+  db eval {SELECT coalesce((select max(coalesce((select max(13+f & c+a) from t1 where 17<t1.a),~case when 17 in (select count(distinct 11) from t1 union select ++cast(avg(a & 11) AS integer)-count(*) from t1) then t1.a else 17 end)) from t1 where case t1.d when 17 then t1.a else 17 end not between 13 and case t1.c when t1.b*case when t1.d<>d then 13 else c end-c then e else t1.e end),c) FROM t1 WHERE exists(select 1 from t1 where t1.a+( -case when exists(select 1 from t1 where exists(select 1 from t1 where b | c-c+t1.d not between 19 and 11)) then coalesce((select t1.c from t1 where c+17 in (f,13,c) or t1.e*coalesce((select case when (not exists(select 1 from t1 where 17>e)) then t1.d else ~t1.e end from t1 where (t1.f not in (19,a,t1.b) or c=f)),c)=c), -11) else e end)<=t1.b)}
+} {300}
+do_test randexpr-2.568 {
+  db eval {SELECT case when ((coalesce((select max((select ~cast(avg((~d*f)) AS integer) from t1)) from t1 where  - -t1.f<>d),e) in (select cast(avg(+13) AS integer)*~count(*) | case count(*) when  -abs(abs(max(f))) then cast(avg(e) AS integer) else (count(distinct b)) end from t1 union select count(*) from t1) and b>= -t1.d)) then (17) when b between 13 and t1.d then  -e+t1.a else t1.f end FROM t1 WHERE (case when +t1.f-(select abs(count(distinct d)) from t1)*case when c in (select min(b) from t1 union select max(c+f*case 11*t1.b when b then t1.c else c end | t1.a) from t1) then d else f end | t1.a*b in (t1.d,17,a) then  -t1.a else t1.d end) in (e,t1.c,f) and  -((t1.c)) in (11,t1.e,t1.c)}
+} {}
+do_test randexpr-2.569 {
+  db eval {SELECT case when ((coalesce((select max((select ~cast(avg((~d*f)) AS integer) from t1)) from t1 where  - -t1.f<>d),e) in (select cast(avg(+13) AS integer)*~count(*) | case count(*) when  -abs(abs(max(f))) then cast(avg(e) AS integer) else (count(distinct b)) end from t1 union select count(*) from t1) and b>= -t1.d)) then (17) when b between 13 and t1.d then  -e+t1.a else t1.f end FROM t1 WHERE NOT ((case when +t1.f-(select abs(count(distinct d)) from t1)*case when c in (select min(b) from t1 union select max(c+f*case 11*t1.b when b then t1.c else c end | t1.a) from t1) then d else f end | t1.a*b in (t1.d,17,a) then  -t1.a else t1.d end) in (e,t1.c,f) and  -((t1.c)) in (11,t1.e,t1.c))}
+} {-400}
+do_test randexpr-2.570 {
+  db eval {SELECT case when ((coalesce((select max((select ~cast(avg((~d*f)) AS integer) from t1)) from t1 where  - -t1.f<>d),e) in (select cast(avg(+13) AS integer)*~count(*) & case count(*) when  -abs(abs(max(f))) then cast(avg(e) AS integer) else (count(distinct b)) end from t1 union select count(*) from t1) and b>= -t1.d)) then (17) when b between 13 and t1.d then  -e+t1.a else t1.f end FROM t1 WHERE NOT ((case when +t1.f-(select abs(count(distinct d)) from t1)*case when c in (select min(b) from t1 union select max(c+f*case 11*t1.b when b then t1.c else c end | t1.a) from t1) then d else f end | t1.a*b in (t1.d,17,a) then  -t1.a else t1.d end) in (e,t1.c,f) and  -((t1.c)) in (11,t1.e,t1.c))}
+} {-400}
+do_test randexpr-2.571 {
+  db eval {SELECT t1.d-case when e in (17,coalesce((select max((select count(*) from t1)) from t1 where (~t1.f++19*t1.f+b in (a,t1.b, -t1.e)) and b in (select count(distinct t1.a) from t1 union select (abs(abs(abs(max(t1.e)*max(t1.d))-min(11)* -count(*)))) from t1)),17),13) and t1.f in (select t1.b from t1 union select f from t1) then t1.c else c end+f FROM t1 WHERE not (select (abs(abs((+count(*)*~ -cast(avg(+t1.f-c) AS integer)*count(distinct +coalesce((select max((abs(c)/abs(t1.e))) from t1 where coalesce((select coalesce((select max(f) from t1 where t1.d<=t1.d),e)*c from t1 where t1.f<>f),c) not between t1.a and c),t1.e)+13)-count(distinct f) | abs(cast(avg(t1.b) AS integer)))))) from t1)-13<t1.c}
+} {700}
+do_test randexpr-2.572 {
+  db eval {SELECT t1.d-case when e in (17,coalesce((select max((select count(*) from t1)) from t1 where (~t1.f++19*t1.f+b in (a,t1.b, -t1.e)) and b in (select count(distinct t1.a) from t1 union select (abs(abs(abs(max(t1.e)*max(t1.d))-min(11)* -count(*)))) from t1)),17),13) and t1.f in (select t1.b from t1 union select f from t1) then t1.c else c end+f FROM t1 WHERE NOT (not (select (abs(abs((+count(*)*~ -cast(avg(+t1.f-c) AS integer)*count(distinct +coalesce((select max((abs(c)/abs(t1.e))) from t1 where coalesce((select coalesce((select max(f) from t1 where t1.d<=t1.d),e)*c from t1 where t1.f<>f),c) not between t1.a and c),t1.e)+13)-count(distinct f) | abs(cast(avg(t1.b) AS integer)))))) from t1)-13<t1.c)}
+} {}
+do_test randexpr-2.573 {
+  db eval {SELECT (abs(t1.f*case when (abs(t1.f+17-(t1.a*11*(abs(d)/abs(coalesce((select max(11) from t1 where e=a-t1.a or e not between 17 and 11 or (t1.f)>=c or f<>e),+d))) | t1.c*b+t1.d)- -f)/abs(13))<>t1.e then  -t1.e when t1.e not between f and t1.a then t1.c else t1.c end)/abs(t1.e)) FROM t1 WHERE (abs(b*t1.e+t1.a)/abs(t1.c))<case when 13 in (coalesce((select max(~(abs( -11*t1.a)/abs(c))+t1.e) from t1 where t1.d in (f,c,(f))),f)-f,b,t1.b) then e when not exists(select 1 from t1 where f in (select max(19) from t1 union select cast(avg(t1.e) AS integer)- -min(11) | abs((cast(avg(t1.d) AS integer))) from t1)) then d else d end and e<e}
+} {}
+do_test randexpr-2.574 {
+  db eval {SELECT (abs(t1.f*case when (abs(t1.f+17-(t1.a*11*(abs(d)/abs(coalesce((select max(11) from t1 where e=a-t1.a or e not between 17 and 11 or (t1.f)>=c or f<>e),+d))) | t1.c*b+t1.d)- -f)/abs(13))<>t1.e then  -t1.e when t1.e not between f and t1.a then t1.c else t1.c end)/abs(t1.e)) FROM t1 WHERE NOT ((abs(b*t1.e+t1.a)/abs(t1.c))<case when 13 in (coalesce((select max(~(abs( -11*t1.a)/abs(c))+t1.e) from t1 where t1.d in (f,c,(f))),f)-f,b,t1.b) then e when not exists(select 1 from t1 where f in (select max(19) from t1 union select cast(avg(t1.e) AS integer)- -min(11) | abs((cast(avg(t1.d) AS integer))) from t1)) then d else d end and e<e)}
+} {600}
+do_test randexpr-2.575 {
+  db eval {SELECT (abs(t1.f*case when (abs(t1.f+17-(t1.a*11*(abs(d)/abs(coalesce((select max(11) from t1 where e=a-t1.a or e not between 17 and 11 or (t1.f)>=c or f<>e),+d))) & t1.c*b+t1.d)- -f)/abs(13))<>t1.e then  -t1.e when t1.e not between f and t1.a then t1.c else t1.c end)/abs(t1.e)) FROM t1 WHERE NOT ((abs(b*t1.e+t1.a)/abs(t1.c))<case when 13 in (coalesce((select max(~(abs( -11*t1.a)/abs(c))+t1.e) from t1 where t1.d in (f,c,(f))),f)-f,b,t1.b) then e when not exists(select 1 from t1 where f in (select max(19) from t1 union select cast(avg(t1.e) AS integer)- -min(11) | abs((cast(avg(t1.d) AS integer))) from t1)) then d else d end and e<e)}
+} {600}
+do_test randexpr-2.576 {
+  db eval {SELECT (abs(t1.c-case when +coalesce((select max(coalesce((select max(a-a*t1.f) from t1 where ~t1.a*t1.a-t1.b+f* -19 not in (t1.d,e,b)),11)*t1.a) from t1 where not exists(select 1 from t1 where not exists(select 1 from t1 where (c) in (b,c,t1.c))) or t1.e between  -b and b),a)+a<=e then t1.d else 17 end)/abs(f)) FROM t1 WHERE t1.d-t1.c+~t1.c<>case when (17) in (select + -abs(count(distinct t1.e*17*c+f)-max(19)) from t1 union select count(*)-max(case t1.f when a then (11+19*t1.b+t1.f) else (19) end*t1.c) from t1) then (abs(b- -f)/abs(f)) else t1.f end}
+} {0}
+do_test randexpr-2.577 {
+  db eval {SELECT (abs(t1.c-case when +coalesce((select max(coalesce((select max(a-a*t1.f) from t1 where ~t1.a*t1.a-t1.b+f* -19 not in (t1.d,e,b)),11)*t1.a) from t1 where not exists(select 1 from t1 where not exists(select 1 from t1 where (c) in (b,c,t1.c))) or t1.e between  -b and b),a)+a<=e then t1.d else 17 end)/abs(f)) FROM t1 WHERE NOT (t1.d-t1.c+~t1.c<>case when (17) in (select + -abs(count(distinct t1.e*17*c+f)-max(19)) from t1 union select count(*)-max(case t1.f when a then (11+19*t1.b+t1.f) else (19) end*t1.c) from t1) then (abs(b- -f)/abs(f)) else t1.f end)}
+} {}
+do_test randexpr-2.578 {
+  db eval {SELECT (abs( -coalesce((select 11 from t1 where (case f when (19+ -(select count(*) from t1)) then (select ++~count(distinct 17+t1.f*(17)) | cast(avg(c) AS integer) from t1) else 13-t1.b*t1.b end*t1.c*(select max(e)*cast(avg(t1.b) AS integer) from t1) | 13) | 17 between 11 and 17),(e))+d)/abs(t1.b))-t1.d FROM t1 WHERE 11<>t1.b}
+} {-400}
+do_test randexpr-2.579 {
+  db eval {SELECT (abs( -coalesce((select 11 from t1 where (case f when (19+ -(select count(*) from t1)) then (select ++~count(distinct 17+t1.f*(17)) | cast(avg(c) AS integer) from t1) else 13-t1.b*t1.b end*t1.c*(select max(e)*cast(avg(t1.b) AS integer) from t1) | 13) | 17 between 11 and 17),(e))+d)/abs(t1.b))-t1.d FROM t1 WHERE NOT (11<>t1.b)}
+} {}
+do_test randexpr-2.580 {
+  db eval {SELECT (abs( -coalesce((select 11 from t1 where (case f when (19+ -(select count(*) from t1)) then (select ++~count(distinct 17+t1.f*(17)) & cast(avg(c) AS integer) from t1) else 13-t1.b*t1.b end*t1.c*(select max(e)*cast(avg(t1.b) AS integer) from t1) & 13) & 17 between 11 and 17),(e))+d)/abs(t1.b))-t1.d FROM t1 WHERE 11<>t1.b}
+} {-400}
+do_test randexpr-2.581 {
+  db eval {SELECT ( -13)-case when (13)+19 between (select cast(avg(11+coalesce((select d from t1 where t1.a in (select b from t1 union select c from t1)),11)+t1.e*d) AS integer)*+(max(t1.c))+cast(avg((c)) AS integer)*count(*) | max( -t1.b) from t1)-t1.d and t1.a then t1.b when b<>t1.f then t1.c else a end-b-t1.b FROM t1 WHERE 11<=t1.e+19*+t1.d}
+} {-613}
+do_test randexpr-2.582 {
+  db eval {SELECT ( -13)-case when (13)+19 between (select cast(avg(11+coalesce((select d from t1 where t1.a in (select b from t1 union select c from t1)),11)+t1.e*d) AS integer)*+(max(t1.c))+cast(avg((c)) AS integer)*count(*) | max( -t1.b) from t1)-t1.d and t1.a then t1.b when b<>t1.f then t1.c else a end-b-t1.b FROM t1 WHERE NOT (11<=t1.e+19*+t1.d)}
+} {}
+do_test randexpr-2.583 {
+  db eval {SELECT ( -13)-case when (13)+19 between (select cast(avg(11+coalesce((select d from t1 where t1.a in (select b from t1 union select c from t1)),11)+t1.e*d) AS integer)*+(max(t1.c))+cast(avg((c)) AS integer)*count(*) & max( -t1.b) from t1)-t1.d and t1.a then t1.b when b<>t1.f then t1.c else a end-b-t1.b FROM t1 WHERE 11<=t1.e+19*+t1.d}
+} {-713}
+do_test randexpr-2.584 {
+  db eval {SELECT coalesce((select max(t1.e++case ~t1.c when t1.f-c then t1.b*+coalesce((select max(+t1.c) from t1 where 19-19-13 | t1.d+(select ~min(17) from t1) not in (case when t1.a<>b then e else  -e end,(t1.d),t1.a)),b)+((e))* -t1.e else t1.d end | b) from t1 where a not between 13 and c),t1.e) FROM t1 WHERE not case when (exists(select 1 from t1 where (((abs(19)/abs((case when exists(select 1 from t1 where +t1.f>c) then 19 when f in (t1.d,t1.a,13) and b=t1.e then t1.f else t1.a end))) in (e, -t1.c,t1.b))))) then  -t1.f when b in (d,11, -d) then t1.e*t1.a else a end+d<>t1.f and (t1.f=( -17))}
+} {}
+do_test randexpr-2.585 {
+  db eval {SELECT coalesce((select max(t1.e++case ~t1.c when t1.f-c then t1.b*+coalesce((select max(+t1.c) from t1 where 19-19-13 | t1.d+(select ~min(17) from t1) not in (case when t1.a<>b then e else  -e end,(t1.d),t1.a)),b)+((e))* -t1.e else t1.d end | b) from t1 where a not between 13 and c),t1.e) FROM t1 WHERE NOT (not case when (exists(select 1 from t1 where (((abs(19)/abs((case when exists(select 1 from t1 where +t1.f>c) then 19 when f in (t1.d,t1.a,13) and b=t1.e then t1.f else t1.a end))) in (e, -t1.c,t1.b))))) then  -t1.f when b in (d,11, -d) then t1.e*t1.a else a end+d<>t1.f and (t1.f=( -17)))}
+} {500}
+do_test randexpr-2.586 {
+  db eval {SELECT coalesce((select max(t1.e++case ~t1.c when t1.f-c then t1.b*+coalesce((select max(+t1.c) from t1 where 19-19-13 & t1.d+(select ~min(17) from t1) not in (case when t1.a<>b then e else  -e end,(t1.d),t1.a)),b)+((e))* -t1.e else t1.d end & b) from t1 where a not between 13 and c),t1.e) FROM t1 WHERE NOT (not case when (exists(select 1 from t1 where (((abs(19)/abs((case when exists(select 1 from t1 where +t1.f>c) then 19 when f in (t1.d,t1.a,13) and b=t1.e then t1.f else t1.a end))) in (e, -t1.c,t1.b))))) then  -t1.f when b in (d,11, -d) then t1.e*t1.a else a end+d<>t1.f and (t1.f=( -17)))}
+} {500}
+do_test randexpr-2.587 {
+  db eval {SELECT case when t1.d-~case t1.b when coalesce((select max(b) from t1 where exists(select 1 from t1 where t1.c<>b)),case when 17 in (select min(c+17) from t1 union select ~ -count(distinct 11) | max(d) from t1) then d when ((t1.a not between t1.f and t1.f)) then t1.a else t1.b end) then (c) else (t1.c) end<t1.a then t1.d when f not between 19 and c and 17 in (t1.f,t1.d,c) then t1.f else 11 end+t1.e*( -11) FROM t1 WHERE case c when f then case (abs(t1.d | case when ((13))*a+c+19>=d then  -13 when b in (select cast(avg((a)) AS integer) from t1 union select  -~abs(count(*))*min(t1.f) from t1) then d else 19 end)/abs(19)) when 11 then 11 else t1.f end+13-t1.d else t1.b end+b>=d and not exists(select 1 from t1 where e>=19)}
+} {}
+do_test randexpr-2.588 {
+  db eval {SELECT case when t1.d-~case t1.b when coalesce((select max(b) from t1 where exists(select 1 from t1 where t1.c<>b)),case when 17 in (select min(c+17) from t1 union select ~ -count(distinct 11) | max(d) from t1) then d when ((t1.a not between t1.f and t1.f)) then t1.a else t1.b end) then (c) else (t1.c) end<t1.a then t1.d when f not between 19 and c and 17 in (t1.f,t1.d,c) then t1.f else 11 end+t1.e*( -11) FROM t1 WHERE NOT (case c when f then case (abs(t1.d | case when ((13))*a+c+19>=d then  -13 when b in (select cast(avg((a)) AS integer) from t1 union select  -~abs(count(*))*min(t1.f) from t1) then d else 19 end)/abs(19)) when 11 then 11 else t1.f end+13-t1.d else t1.b end+b>=d and not exists(select 1 from t1 where e>=19))}
+} {-5489}
+do_test randexpr-2.589 {
+  db eval {SELECT case when t1.d-~case t1.b when coalesce((select max(b) from t1 where exists(select 1 from t1 where t1.c<>b)),case when 17 in (select min(c+17) from t1 union select ~ -count(distinct 11) & max(d) from t1) then d when ((t1.a not between t1.f and t1.f)) then t1.a else t1.b end) then (c) else (t1.c) end<t1.a then t1.d when f not between 19 and c and 17 in (t1.f,t1.d,c) then t1.f else 11 end+t1.e*( -11) FROM t1 WHERE NOT (case c when f then case (abs(t1.d | case when ((13))*a+c+19>=d then  -13 when b in (select cast(avg((a)) AS integer) from t1 union select  -~abs(count(*))*min(t1.f) from t1) then d else 19 end)/abs(19)) when 11 then 11 else t1.f end+13-t1.d else t1.b end+b>=d and not exists(select 1 from t1 where e>=19))}
+} {-5489}
+do_test randexpr-2.590 {
+  db eval {SELECT b+coalesce((select (t1.e) from t1 where coalesce((select max((select abs(cast(avg( -t1.f*17) AS integer))+count(*) from t1)-19*coalesce((select b*+~(t1.c)*(abs(c)/abs(a))+t1.e from t1 where 11 in (t1.a,17,b* -t1.f)),t1.e)*t1.b) from t1 where t1.f<>17),17) in (11,11, -t1.f)),t1.e) FROM t1 WHERE coalesce((select max(coalesce((select 19-e from t1 where t1.b not in (coalesce((select max(t1.e+coalesce((select 11+ -coalesce((select max(t1.a) from t1 where t1.a in (select cast(avg( -11) AS integer) from t1 union select  -max(c) from t1)),11)*t1.a from t1 where exists(select 1 from t1 where a= -e)),e)-t1.c | t1.d) from t1 where t1.e=t1.a),17),(t1.e),c)),t1.b)) from t1 where not exists(select 1 from t1 where (13>=a) or exists(select 1 from t1 where d<>11))), -19)<=t1.b}
+} {700}
+do_test randexpr-2.591 {
+  db eval {SELECT b+coalesce((select (t1.e) from t1 where coalesce((select max((select abs(cast(avg( -t1.f*17) AS integer))+count(*) from t1)-19*coalesce((select b*+~(t1.c)*(abs(c)/abs(a))+t1.e from t1 where 11 in (t1.a,17,b* -t1.f)),t1.e)*t1.b) from t1 where t1.f<>17),17) in (11,11, -t1.f)),t1.e) FROM t1 WHERE NOT (coalesce((select max(coalesce((select 19-e from t1 where t1.b not in (coalesce((select max(t1.e+coalesce((select 11+ -coalesce((select max(t1.a) from t1 where t1.a in (select cast(avg( -11) AS integer) from t1 union select  -max(c) from t1)),11)*t1.a from t1 where exists(select 1 from t1 where a= -e)),e)-t1.c | t1.d) from t1 where t1.e=t1.a),17),(t1.e),c)),t1.b)) from t1 where not exists(select 1 from t1 where (13>=a) or exists(select 1 from t1 where d<>11))), -19)<=t1.b)}
+} {}
+do_test randexpr-2.592 {
+  db eval {SELECT (select count(distinct t1.a)-cast(avg(~c+coalesce((select e from t1 where e in (select t1.f from t1 union select d from t1) or t1.d not in (case when a not in (t1.d,t1.c,t1.b) then a-case when ~t1.b+t1.e |  -t1.e not in (a,(b),19) then t1.d else 11 end*b when 13 in (c,13,t1.a) then  -t1.a else 17 end,c,d)),t1.e)) AS integer) from t1) FROM t1 WHERE ~e<=(a-(select count(*) from t1)+c+(select  -abs(abs( -(max((abs(coalesce((select a*(abs(b-b)/abs((c*a*b)-11+coalesce((select max(b) from t1 where a<c),e))) from t1 where 17<>e),e))/abs(11))*t1.e)))) | abs((count(*))) from t1))}
+} {-198}
+do_test randexpr-2.593 {
+  db eval {SELECT (select count(distinct t1.a)-cast(avg(~c+coalesce((select e from t1 where e in (select t1.f from t1 union select d from t1) or t1.d not in (case when a not in (t1.d,t1.c,t1.b) then a-case when ~t1.b+t1.e |  -t1.e not in (a,(b),19) then t1.d else 11 end*b when 13 in (c,13,t1.a) then  -t1.a else 17 end,c,d)),t1.e)) AS integer) from t1) FROM t1 WHERE NOT (~e<=(a-(select count(*) from t1)+c+(select  -abs(abs( -(max((abs(coalesce((select a*(abs(b-b)/abs((c*a*b)-11+coalesce((select max(b) from t1 where a<c),e))) from t1 where 17<>e),e))/abs(11))*t1.e)))) | abs((count(*))) from t1)))}
+} {}
+do_test randexpr-2.594 {
+  db eval {SELECT (select count(distinct t1.a)-cast(avg(~c+coalesce((select e from t1 where e in (select t1.f from t1 union select d from t1) or t1.d not in (case when a not in (t1.d,t1.c,t1.b) then a-case when ~t1.b+t1.e &  -t1.e not in (a,(b),19) then t1.d else 11 end*b when 13 in (c,13,t1.a) then  -t1.a else 17 end,c,d)),t1.e)) AS integer) from t1) FROM t1 WHERE ~e<=(a-(select count(*) from t1)+c+(select  -abs(abs( -(max((abs(coalesce((select a*(abs(b-b)/abs((c*a*b)-11+coalesce((select max(b) from t1 where a<c),e))) from t1 where 17<>e),e))/abs(11))*t1.e)))) | abs((count(*))) from t1))}
+} {-198}
+do_test randexpr-2.595 {
+  db eval {SELECT 13-(select cast(avg(t1.c-13) AS integer) from t1) | 11+t1.b | coalesce((select max(case when b in (select case  -case max(17) when ~cast(avg(13-t1.a) AS integer) then count(distinct 13) else  - -((cast(avg(e) AS integer))) end when cast(avg(t1.c) AS integer) then count(distinct d) else count(*) end from t1 union select count(*) from t1) then case when t1.d<>~13 then b when t1.c<>13 then t1.a else a end else t1.a end) from t1 where t1.f<>( -(17))),t1.e)+c FROM t1 WHERE (~coalesce((select (11+t1.d) from t1 where 17 in (select f+a from t1 union select case when 11>coalesce((select  -case when (11 not in (t1.f,(abs(t1.a)/abs((select count(distinct  -case when 13<=e then c when d between (t1.d) and t1.d then a else 11 end) from t1)-f)),c)) then f when (t1.f>t1.d) then 17 else 13 end from t1 where t1.e>a),17) then f else t1.b end from t1)),b)*13>e)}
+} {}
+do_test randexpr-2.596 {
+  db eval {SELECT 13-(select cast(avg(t1.c-13) AS integer) from t1) | 11+t1.b | coalesce((select max(case when b in (select case  -case max(17) when ~cast(avg(13-t1.a) AS integer) then count(distinct 13) else  - -((cast(avg(e) AS integer))) end when cast(avg(t1.c) AS integer) then count(distinct d) else count(*) end from t1 union select count(*) from t1) then case when t1.d<>~13 then b when t1.c<>13 then t1.a else a end else t1.a end) from t1 where t1.f<>( -(17))),t1.e)+c FROM t1 WHERE NOT ((~coalesce((select (11+t1.d) from t1 where 17 in (select f+a from t1 union select case when 11>coalesce((select  -case when (11 not in (t1.f,(abs(t1.a)/abs((select count(distinct  -case when 13<=e then c when d between (t1.d) and t1.d then a else 11 end) from t1)-f)),c)) then f when (t1.f>t1.d) then 17 else 13 end from t1 where t1.e>a),17) then f else t1.b end from t1)),b)*13>e))}
+} {-1}
+do_test randexpr-2.597 {
+  db eval {SELECT 13-(select cast(avg(t1.c-13) AS integer) from t1) & 11+t1.b & coalesce((select max(case when b in (select case  -case max(17) when ~cast(avg(13-t1.a) AS integer) then count(distinct 13) else  - -((cast(avg(e) AS integer))) end when cast(avg(t1.c) AS integer) then count(distinct d) else count(*) end from t1 union select count(*) from t1) then case when t1.d<>~13 then b when t1.c<>13 then t1.a else a end else t1.a end) from t1 where t1.f<>( -(17))),t1.e)+c FROM t1 WHERE NOT ((~coalesce((select (11+t1.d) from t1 where 17 in (select f+a from t1 union select case when 11>coalesce((select  -case when (11 not in (t1.f,(abs(t1.a)/abs((select count(distinct  -case when 13<=e then c when d between (t1.d) and t1.d then a else 11 end) from t1)-f)),c)) then f when (t1.f>t1.d) then 17 else 13 end from t1 where t1.e>a),17) then f else t1.b end from t1)),b)*13>e))}
+} {128}
+do_test randexpr-2.598 {
+  db eval {SELECT f+coalesce((select case when ~case when coalesce((select max(b) from t1 where not exists(select 1 from t1 where 11*t1.b>case t1.b when 13 then 11 else b end)),t1.b) not in (a,b,+t1.e | case when t1.a<>17 then 17 else t1.e end) then c when (t1.e)<>d then 11 else f end*(e) not between d and e then 17 else 17 end from t1 where 13 not between 19 and f),t1.b)*11 FROM t1 WHERE not exists(select 1 from t1 where 11 between c and b and  -case when 13 between  -f | case when t1.b<+c then b when t1.f>13 then a else (d) end and d then t1.d when t1.a in (select 19 from t1 union select 11 from t1) or not exists(select 1 from t1 where exists(select 1 from t1 where not b=t1.b)) then  -19 else t1.b end in (select max(17) from t1 union select count(distinct a)+count(distinct 11) from t1) and t1.f<t1.d or b not in (d,t1.d,a))}
+} {}
+do_test randexpr-2.599 {
+  db eval {SELECT f+coalesce((select case when ~case when coalesce((select max(b) from t1 where not exists(select 1 from t1 where 11*t1.b>case t1.b when 13 then 11 else b end)),t1.b) not in (a,b,+t1.e | case when t1.a<>17 then 17 else t1.e end) then c when (t1.e)<>d then 11 else f end*(e) not between d and e then 17 else 17 end from t1 where 13 not between 19 and f),t1.b)*11 FROM t1 WHERE NOT (not exists(select 1 from t1 where 11 between c and b and  -case when 13 between  -f | case when t1.b<+c then b when t1.f>13 then a else (d) end and d then t1.d when t1.a in (select 19 from t1 union select 11 from t1) or not exists(select 1 from t1 where exists(select 1 from t1 where not b=t1.b)) then  -19 else t1.b end in (select max(17) from t1 union select count(distinct a)+count(distinct 11) from t1) and t1.f<t1.d or b not in (d,t1.d,a)))}
+} {787}
+do_test randexpr-2.600 {
+  db eval {SELECT f+coalesce((select case when ~case when coalesce((select max(b) from t1 where not exists(select 1 from t1 where 11*t1.b>case t1.b when 13 then 11 else b end)),t1.b) not in (a,b,+t1.e & case when t1.a<>17 then 17 else t1.e end) then c when (t1.e)<>d then 11 else f end*(e) not between d and e then 17 else 17 end from t1 where 13 not between 19 and f),t1.b)*11 FROM t1 WHERE NOT (not exists(select 1 from t1 where 11 between c and b and  -case when 13 between  -f | case when t1.b<+c then b when t1.f>13 then a else (d) end and d then t1.d when t1.a in (select 19 from t1 union select 11 from t1) or not exists(select 1 from t1 where exists(select 1 from t1 where not b=t1.b)) then  -19 else t1.b end in (select max(17) from t1 union select count(distinct a)+count(distinct 11) from t1) and t1.f<t1.d or b not in (d,t1.d,a)))}
+} {787}
+do_test randexpr-2.601 {
+  db eval {SELECT coalesce((select max(e) from t1 where e*~t1.b*e+c*case when +(abs(coalesce((select max(t1.b) from t1 where t1.b>=t1.a-11),11))/abs(17))=t1.f and ((t1.f)=t1.e) then t1.a+t1.d when not exists(select 1 from t1 where  -b>c) or t1.a>=11 then t1.e else e end*13*t1.f | d>=19),t1.b)+t1.a FROM t1 WHERE t1.e not in (t1.f+case when f-d not between coalesce((select max(d) from t1 where (coalesce((select max(17) from t1 where not 19 in (select cast(avg(c) AS integer)-~count(distinct f- -e)+cast(avg(19) AS integer) from t1 union select cast(avg(d) AS integer) from t1)),b) not in (13,t1.c,13))),17)+ -e+t1.f and  -(t1.b) then (t1.d) when t1.b in (select min(a) from t1 union select min(17) from t1) then c else 11 end,c, -13)}
+} {600}
+do_test randexpr-2.602 {
+  db eval {SELECT coalesce((select max(e) from t1 where e*~t1.b*e+c*case when +(abs(coalesce((select max(t1.b) from t1 where t1.b>=t1.a-11),11))/abs(17))=t1.f and ((t1.f)=t1.e) then t1.a+t1.d when not exists(select 1 from t1 where  -b>c) or t1.a>=11 then t1.e else e end*13*t1.f | d>=19),t1.b)+t1.a FROM t1 WHERE NOT (t1.e not in (t1.f+case when f-d not between coalesce((select max(d) from t1 where (coalesce((select max(17) from t1 where not 19 in (select cast(avg(c) AS integer)-~count(distinct f- -e)+cast(avg(19) AS integer) from t1 union select cast(avg(d) AS integer) from t1)),b) not in (13,t1.c,13))),17)+ -e+t1.f and  -(t1.b) then (t1.d) when t1.b in (select min(a) from t1 union select min(17) from t1) then c else 11 end,c, -13))}
+} {}
+do_test randexpr-2.603 {
+  db eval {SELECT coalesce((select max(e) from t1 where e*~t1.b*e+c*case when +(abs(coalesce((select max(t1.b) from t1 where t1.b>=t1.a-11),11))/abs(17))=t1.f and ((t1.f)=t1.e) then t1.a+t1.d when not exists(select 1 from t1 where  -b>c) or t1.a>=11 then t1.e else e end*13*t1.f & d>=19),t1.b)+t1.a FROM t1 WHERE t1.e not in (t1.f+case when f-d not between coalesce((select max(d) from t1 where (coalesce((select max(17) from t1 where not 19 in (select cast(avg(c) AS integer)-~count(distinct f- -e)+cast(avg(19) AS integer) from t1 union select cast(avg(d) AS integer) from t1)),b) not in (13,t1.c,13))),17)+ -e+t1.f and  -(t1.b) then (t1.d) when t1.b in (select min(a) from t1 union select min(17) from t1) then c else 11 end,c, -13)}
+} {600}
+do_test randexpr-2.604 {
+  db eval {SELECT case when exists(select 1 from t1 where f in (select cast(avg(t1.c) AS integer) from t1 union select min(t1.b) from t1)) then c+d-d when (coalesce((select a from t1 where a<(select abs(count(*)) from t1)),(select count(distinct t1.e) | abs(+ -count(distinct t1.e)*min(t1.b) | count(distinct 11)) from t1))) not in (17,(abs(t1.d)/abs(coalesce((select max(t1.f) from t1 where t1.a*t1.f>=t1.c),t1.f))),t1.e) then t1.c else t1.e end-f FROM t1 WHERE 13*~~(abs(b)/abs(coalesce((select max(t1.a) from t1 where t1.e in ( -(13-17)-b+(e | (abs(t1.e)/abs(case when ~t1.d between t1.e and c and t1.b in (select t1.c from t1 union select b from t1) then 11+t1.b when a=t1.d then b else c end)))*17,t1.c, -17)),13)))-e+b-19>19}
+} {}
+do_test randexpr-2.605 {
+  db eval {SELECT case when exists(select 1 from t1 where f in (select cast(avg(t1.c) AS integer) from t1 union select min(t1.b) from t1)) then c+d-d when (coalesce((select a from t1 where a<(select abs(count(*)) from t1)),(select count(distinct t1.e) | abs(+ -count(distinct t1.e)*min(t1.b) | count(distinct 11)) from t1))) not in (17,(abs(t1.d)/abs(coalesce((select max(t1.f) from t1 where t1.a*t1.f>=t1.c),t1.f))),t1.e) then t1.c else t1.e end-f FROM t1 WHERE NOT (13*~~(abs(b)/abs(coalesce((select max(t1.a) from t1 where t1.e in ( -(13-17)-b+(e | (abs(t1.e)/abs(case when ~t1.d between t1.e and c and t1.b in (select t1.c from t1 union select b from t1) then 11+t1.b when a=t1.d then b else c end)))*17,t1.c, -17)),13)))-e+b-19>19)}
+} {-300}
+do_test randexpr-2.606 {
+  db eval {SELECT case when exists(select 1 from t1 where f in (select cast(avg(t1.c) AS integer) from t1 union select min(t1.b) from t1)) then c+d-d when (coalesce((select a from t1 where a<(select abs(count(*)) from t1)),(select count(distinct t1.e) & abs(+ -count(distinct t1.e)*min(t1.b) & count(distinct 11)) from t1))) not in (17,(abs(t1.d)/abs(coalesce((select max(t1.f) from t1 where t1.a*t1.f>=t1.c),t1.f))),t1.e) then t1.c else t1.e end-f FROM t1 WHERE NOT (13*~~(abs(b)/abs(coalesce((select max(t1.a) from t1 where t1.e in ( -(13-17)-b+(e | (abs(t1.e)/abs(case when ~t1.d between t1.e and c and t1.b in (select t1.c from t1 union select b from t1) then 11+t1.b when a=t1.d then b else c end)))*17,t1.c, -17)),13)))-e+b-19>19)}
+} {-100}
+do_test randexpr-2.607 {
+  db eval {SELECT case when t1.f<d or t1.d>=17 then t1.d-19-11*f*t1.a*t1.b-case (select +cast(avg(a) AS integer) from t1) when 19 then 17 else a end when t1.a between case t1.c when t1.c*t1.c then (d) else t1.c end and c then e else t1.a end FROM t1 WHERE not exists(select 1 from t1 where exists(select 1 from t1 where (abs(+f-( -~(select count(distinct ~a*e | (select max(f)*count(distinct t1.f) from t1)) |  -max(17)+(count(*))+max(11)+count(distinct t1.e)- - -count(distinct f) from t1)+b*b-t1.c) | t1.e)/abs(17))*c*b in (17,19,t1.e)))}
+} {-131999719}
+do_test randexpr-2.608 {
+  db eval {SELECT case when t1.f<d or t1.d>=17 then t1.d-19-11*f*t1.a*t1.b-case (select +cast(avg(a) AS integer) from t1) when 19 then 17 else a end when t1.a between case t1.c when t1.c*t1.c then (d) else t1.c end and c then e else t1.a end FROM t1 WHERE NOT (not exists(select 1 from t1 where exists(select 1 from t1 where (abs(+f-( -~(select count(distinct ~a*e | (select max(f)*count(distinct t1.f) from t1)) |  -max(17)+(count(*))+max(11)+count(distinct t1.e)- - -count(distinct f) from t1)+b*b-t1.c) | t1.e)/abs(17))*c*b in (17,19,t1.e))))}
+} {}
+do_test randexpr-2.609 {
+  db eval {SELECT f-~+17*(abs(t1.f)/abs(a*case when case when (case when d>=t1.b or t1.b>=11 then t1.c when t1.b>t1.d then t1.d else t1.a end+17) not in (11,t1.e,17) then c when (t1.b>=a and b>b) then t1.d else d end in (select +abs( -max(t1.e)) from t1 union select count(*) | max(17) from t1) then (t1.a) else a end+(t1.e)))*(11)-f | t1.a-f FROM t1 WHERE ((t1.d>=t1.c))}
+} {-500}
+do_test randexpr-2.610 {
+  db eval {SELECT f-~+17*(abs(t1.f)/abs(a*case when case when (case when d>=t1.b or t1.b>=11 then t1.c when t1.b>t1.d then t1.d else t1.a end+17) not in (11,t1.e,17) then c when (t1.b>=a and b>b) then t1.d else d end in (select +abs( -max(t1.e)) from t1 union select count(*) | max(17) from t1) then (t1.a) else a end+(t1.e)))*(11)-f | t1.a-f FROM t1 WHERE NOT (((t1.d>=t1.c)))}
+} {}
+do_test randexpr-2.611 {
+  db eval {SELECT f-~+17*(abs(t1.f)/abs(a*case when case when (case when d>=t1.b or t1.b>=11 then t1.c when t1.b>t1.d then t1.d else t1.a end+17) not in (11,t1.e,17) then c when (t1.b>=a and b>b) then t1.d else d end in (select +abs( -max(t1.e)) from t1 union select count(*) & max(17) from t1) then (t1.a) else a end+(t1.e)))*(11)-f & t1.a-f FROM t1 WHERE ((t1.d>=t1.c))}
+} {0}
+do_test randexpr-2.612 {
+  db eval {SELECT e+ -((abs(f)/abs(17))) | t1.e*11-coalesce((select max(f) from t1 where ((abs(~+t1.b-coalesce((select coalesce((select max(t1.d) from t1 where not exists(select 1 from t1 where ((f) not in (11,19,t1.b)))),11* -t1.b) from t1 where  -a<=c),t1.f))/abs( -b)) between t1.c and e and not exists(select 1 from t1 where f not in ( -t1.f,19,t1.e)))),case t1.c when 19 then (11) else (t1.a) end) | (13) FROM t1 WHERE d<>13 or t1.c in (select count(distinct  -c*11-( -e)-t1.e)-( -case +max(t1.c)-min((select +cast(avg(19*17) AS integer) from t1)* -t1.f)+~(~count(distinct f))+count(*)-cast(avg(t1.c) AS integer) when count(distinct t1.f) then count(distinct e) else  -count(*) end-count(*)) from t1 union select count(distinct 11) from t1)}
+} {5597}
+do_test randexpr-2.613 {
+  db eval {SELECT e+ -((abs(f)/abs(17))) | t1.e*11-coalesce((select max(f) from t1 where ((abs(~+t1.b-coalesce((select coalesce((select max(t1.d) from t1 where not exists(select 1 from t1 where ((f) not in (11,19,t1.b)))),11* -t1.b) from t1 where  -a<=c),t1.f))/abs( -b)) between t1.c and e and not exists(select 1 from t1 where f not in ( -t1.f,19,t1.e)))),case t1.c when 19 then (11) else (t1.a) end) | (13) FROM t1 WHERE NOT (d<>13 or t1.c in (select count(distinct  -c*11-( -e)-t1.e)-( -case +max(t1.c)-min((select +cast(avg(19*17) AS integer) from t1)* -t1.f)+~(~count(distinct f))+count(*)-cast(avg(t1.c) AS integer) when count(distinct t1.f) then count(distinct e) else  -count(*) end-count(*)) from t1 union select count(distinct 11) from t1))}
+} {}
+do_test randexpr-2.614 {
+  db eval {SELECT e+ -((abs(f)/abs(17))) & t1.e*11-coalesce((select max(f) from t1 where ((abs(~+t1.b-coalesce((select coalesce((select max(t1.d) from t1 where not exists(select 1 from t1 where ((f) not in (11,19,t1.b)))),11* -t1.b) from t1 where  -a<=c),t1.f))/abs( -b)) between t1.c and e and not exists(select 1 from t1 where f not in ( -t1.f,19,t1.e)))),case t1.c when 19 then (11) else (t1.a) end) & (13) FROM t1 WHERE d<>13 or t1.c in (select count(distinct  -c*11-( -e)-t1.e)-( -case +max(t1.c)-min((select +cast(avg(19*17) AS integer) from t1)* -t1.f)+~(~count(distinct f))+count(*)-cast(avg(t1.c) AS integer) when count(distinct t1.f) then count(distinct e) else  -count(*) end-count(*)) from t1 union select count(distinct 11) from t1)}
+} {0}
+do_test randexpr-2.615 {
+  db eval {SELECT coalesce((select case t1.e when t1.d then  -t1.b else b | t1.f end from t1 where case e when case 11 when t1.f then 13 else c end-19 then case  -(select count(distinct 19+ - -d*t1.f+d) from t1)*(abs(c)/abs(coalesce((select max(e) from t1 where not t1.c>t1.d),(17-t1.a)))) when 11 then t1.f else t1.a end else a end<>t1.c),t1.e) FROM t1 WHERE (select case count(*)* -+abs(+count(*)+min(t1.d)) | max(+(17)) when ~count(*)*(count(*))-(count(distinct t1.b)) then count(distinct 11) else max(t1.e) end from t1)>=(abs(coalesce((select t1.b from t1 where (a<f)),b-t1.a))/abs((11*c)-t1.f-b)) and 13 not between (t1.b) and t1.b}
+} {728}
+do_test randexpr-2.616 {
+  db eval {SELECT coalesce((select case t1.e when t1.d then  -t1.b else b | t1.f end from t1 where case e when case 11 when t1.f then 13 else c end-19 then case  -(select count(distinct 19+ - -d*t1.f+d) from t1)*(abs(c)/abs(coalesce((select max(e) from t1 where not t1.c>t1.d),(17-t1.a)))) when 11 then t1.f else t1.a end else a end<>t1.c),t1.e) FROM t1 WHERE NOT ((select case count(*)* -+abs(+count(*)+min(t1.d)) | max(+(17)) when ~count(*)*(count(*))-(count(distinct t1.b)) then count(distinct 11) else max(t1.e) end from t1)>=(abs(coalesce((select t1.b from t1 where (a<f)),b-t1.a))/abs((11*c)-t1.f-b)) and 13 not between (t1.b) and t1.b)}
+} {}
+do_test randexpr-2.617 {
+  db eval {SELECT coalesce((select case t1.e when t1.d then  -t1.b else b & t1.f end from t1 where case e when case 11 when t1.f then 13 else c end-19 then case  -(select count(distinct 19+ - -d*t1.f+d) from t1)*(abs(c)/abs(coalesce((select max(e) from t1 where not t1.c>t1.d),(17-t1.a)))) when 11 then t1.f else t1.a end else a end<>t1.c),t1.e) FROM t1 WHERE (select case count(*)* -+abs(+count(*)+min(t1.d)) | max(+(17)) when ~count(*)*(count(*))-(count(distinct t1.b)) then count(distinct 11) else max(t1.e) end from t1)>=(abs(coalesce((select t1.b from t1 where (a<f)),b-t1.a))/abs((11*c)-t1.f-b)) and 13 not between (t1.b) and t1.b}
+} {72}
+do_test randexpr-2.618 {
+  db eval {SELECT case when 13<11 then 19 when  -(abs(f)/abs(13))*17-13 | case t1.b when ~((select (count(*)-abs(case cast(avg(19) AS integer) when count(distinct 19)*(count(*))-count(*) then count(distinct t1.d) else  -count(distinct 17) end)+max(17)) from t1)) then t1.c else d end+11*t1.e*t1.a | e>(t1.c) then t1.d else t1.d end FROM t1 WHERE case when 17-t1.f in (select case  -~max(c-~e+19)*max(c)*count(*)+~count(distinct f)+case count(distinct d) when max(t1.b) then cast(avg(t1.d) AS integer) else count(distinct d) end-count(distinct d)*max(f)+ -count(distinct 13) when count(*) then ( -min(t1.c)) else min(( -d)) end from t1 union select  -min(c) from t1) then 13 else case t1.c when t1.c then f else d end end-e-(17) in (select c from t1 union select c from t1)}
+} {}
+do_test randexpr-2.619 {
+  db eval {SELECT case when 13<11 then 19 when  -(abs(f)/abs(13))*17-13 | case t1.b when ~((select (count(*)-abs(case cast(avg(19) AS integer) when count(distinct 19)*(count(*))-count(*) then count(distinct t1.d) else  -count(distinct 17) end)+max(17)) from t1)) then t1.c else d end+11*t1.e*t1.a | e>(t1.c) then t1.d else t1.d end FROM t1 WHERE NOT (case when 17-t1.f in (select case  -~max(c-~e+19)*max(c)*count(*)+~count(distinct f)+case count(distinct d) when max(t1.b) then cast(avg(t1.d) AS integer) else count(distinct d) end-count(distinct d)*max(f)+ -count(distinct 13) when count(*) then ( -min(t1.c)) else min(( -d)) end from t1 union select  -min(c) from t1) then 13 else case t1.c when t1.c then f else d end end-e-(17) in (select c from t1 union select c from t1))}
+} {400}
+do_test randexpr-2.620 {
+  db eval {SELECT case when 13<11 then 19 when  -(abs(f)/abs(13))*17-13 & case t1.b when ~((select (count(*)-abs(case cast(avg(19) AS integer) when count(distinct 19)*(count(*))-count(*) then count(distinct t1.d) else  -count(distinct 17) end)+max(17)) from t1)) then t1.c else d end+11*t1.e*t1.a & e>(t1.c) then t1.d else t1.d end FROM t1 WHERE NOT (case when 17-t1.f in (select case  -~max(c-~e+19)*max(c)*count(*)+~count(distinct f)+case count(distinct d) when max(t1.b) then cast(avg(t1.d) AS integer) else count(distinct d) end-count(distinct d)*max(f)+ -count(distinct 13) when count(*) then ( -min(t1.c)) else min(( -d)) end from t1 union select  -min(c) from t1) then 13 else case t1.c when t1.c then f else d end end-e-(17) in (select c from t1 union select c from t1))}
+} {400}
+do_test randexpr-2.621 {
+  db eval {SELECT coalesce((select case ~(case when  -f between t1.e and f then coalesce((select max(t1.a-t1.d) from t1 where d=b),case when (f*11-a-t1.d-c>t1.e and b>=19) then  -+d when t1.b>= -13 then 17 else t1.f end) else (19) end) when 11 then b else f end from t1 where  -t1.e<=t1.d),a) FROM t1 WHERE (+coalesce((select max((abs(19*a-t1.b+t1.a*a)/abs(19))) from t1 where not t1.f in (select case  -count(*)-cast(avg(c) AS integer)+cast(avg(e) AS integer)*count(*) when min(t1.d) then  -(cast(avg(t1.f) AS integer)) else max(13) end+min(t1.d)+count(*) | count(*) | min(11) | count(distinct f) from t1 union select  -count(*) from t1)),e))-t1.e*d | f in (t1.d,e,e)}
+} {}
+do_test randexpr-2.622 {
+  db eval {SELECT coalesce((select case ~(case when  -f between t1.e and f then coalesce((select max(t1.a-t1.d) from t1 where d=b),case when (f*11-a-t1.d-c>t1.e and b>=19) then  -+d when t1.b>= -13 then 17 else t1.f end) else (19) end) when 11 then b else f end from t1 where  -t1.e<=t1.d),a) FROM t1 WHERE NOT ((+coalesce((select max((abs(19*a-t1.b+t1.a*a)/abs(19))) from t1 where not t1.f in (select case  -count(*)-cast(avg(c) AS integer)+cast(avg(e) AS integer)*count(*) when min(t1.d) then  -(cast(avg(t1.f) AS integer)) else max(13) end+min(t1.d)+count(*) | count(*) | min(11) | count(distinct f) from t1 union select  -count(*) from t1)),e))-t1.e*d | f in (t1.d,e,e))}
+} {600}
+do_test randexpr-2.623 {
+  db eval {SELECT case d*t1.f when  -t1.a then t1.c+(coalesce((select max(13+case when  -t1.d*13*c*d | case t1.e when t1.e then t1.b+t1.d else (abs(t1.b)/abs(case when c>b or d in (t1.e,a,d) then d else e end))+f end=t1.f then a when t1.a<=19 then 17 else d end) from t1 where (t1.f>t1.b)),(f))) else f end+t1.a FROM t1 WHERE t1.f+case d when 19 then +t1.c else 19-(abs((t1.b)*~coalesce((select f from t1 where (case when +case when t1.d>13 then t1.e else (t1.a) end<13 then f when t1.c<=e then d else t1.a end*t1.d in (select +case ~min(b) when  -max(13) then cast(avg( -(11)) AS integer) else  -cast(avg(17) AS integer) end+count(distinct t1.a) from t1 union select min(t1.f) from t1))),t1.a))/abs(f)) end+(a) in (b,t1.c,t1.a)}
+} {}
+do_test randexpr-2.624 {
+  db eval {SELECT case d*t1.f when  -t1.a then t1.c+(coalesce((select max(13+case when  -t1.d*13*c*d | case t1.e when t1.e then t1.b+t1.d else (abs(t1.b)/abs(case when c>b or d in (t1.e,a,d) then d else e end))+f end=t1.f then a when t1.a<=19 then 17 else d end) from t1 where (t1.f>t1.b)),(f))) else f end+t1.a FROM t1 WHERE NOT (t1.f+case d when 19 then +t1.c else 19-(abs((t1.b)*~coalesce((select f from t1 where (case when +case when t1.d>13 then t1.e else (t1.a) end<13 then f when t1.c<=e then d else t1.a end*t1.d in (select +case ~min(b) when  -max(13) then cast(avg( -(11)) AS integer) else  -cast(avg(17) AS integer) end+count(distinct t1.a) from t1 union select min(t1.f) from t1))),t1.a))/abs(f)) end+(a) in (b,t1.c,t1.a))}
+} {700}
+do_test randexpr-2.625 {
+  db eval {SELECT case d*t1.f when  -t1.a then t1.c+(coalesce((select max(13+case when  -t1.d*13*c*d & case t1.e when t1.e then t1.b+t1.d else (abs(t1.b)/abs(case when c>b or d in (t1.e,a,d) then d else e end))+f end=t1.f then a when t1.a<=19 then 17 else d end) from t1 where (t1.f>t1.b)),(f))) else f end+t1.a FROM t1 WHERE NOT (t1.f+case d when 19 then +t1.c else 19-(abs((t1.b)*~coalesce((select f from t1 where (case when +case when t1.d>13 then t1.e else (t1.a) end<13 then f when t1.c<=e then d else t1.a end*t1.d in (select +case ~min(b) when  -max(13) then cast(avg( -(11)) AS integer) else  -cast(avg(17) AS integer) end+count(distinct t1.a) from t1 union select min(t1.f) from t1))),t1.a))/abs(f)) end+(a) in (b,t1.c,t1.a))}
+} {700}
+do_test randexpr-2.626 {
+  db eval {SELECT case case when (not exists(select 1 from t1 where  -e in (select t1.c from t1 union select b from t1))) then coalesce((select max(t1.d) from t1 where (17+~t1.c in (select min(t1.b) from t1 union select min(13) from t1))),t1.d)*t1.a+d when not a=a and t1.b not in (b,13,d) or d<13 or t1.f not between t1.c and f or t1.c<>c then t1.e else t1.d end when t1.c then (t1.d) else  -f end FROM t1 WHERE (abs(case when (t1.e in (17,19+t1.b,t1.a)) or (t1.d-19)+(t1.d)+t1.d in (select t1.f from t1 union select t1.e from t1) and 13 in (select t1.c from t1 union select c from t1) or 11 not between e and 17 then  -17-a else d end*13)/abs((b)))*d-f-13 between t1.d and (b)}
+} {}
+do_test randexpr-2.627 {
+  db eval {SELECT case case when (not exists(select 1 from t1 where  -e in (select t1.c from t1 union select b from t1))) then coalesce((select max(t1.d) from t1 where (17+~t1.c in (select min(t1.b) from t1 union select min(13) from t1))),t1.d)*t1.a+d when not a=a and t1.b not in (b,13,d) or d<13 or t1.f not between t1.c and f or t1.c<>c then t1.e else t1.d end when t1.c then (t1.d) else  -f end FROM t1 WHERE NOT ((abs(case when (t1.e in (17,19+t1.b,t1.a)) or (t1.d-19)+(t1.d)+t1.d in (select t1.f from t1 union select t1.e from t1) and 13 in (select t1.c from t1 union select c from t1) or 11 not between e and 17 then  -17-a else d end*13)/abs((b)))*d-f-13 between t1.d and (b))}
+} {-600}
+do_test randexpr-2.628 {
+  db eval {SELECT a+a+(f)-(t1.f+d+t1.e | case when case (13) when t1.c then case coalesce((select  -t1.b-t1.f-13 from t1 where t1.f between t1.d and (a)),t1.b) when b then 13 else t1.f end-f else t1.d end>=e then 19 else t1.c end*t1.c)*f-(t1.d)-b FROM t1 WHERE (t1.b)=t1.a+t1.d-13 | +~f+13 | e+t1.c+coalesce((select t1.a+e from t1 where b in (select (~max(b-t1.b-coalesce((select ((a)) from t1 where e=d or b not between b and t1.e),t1.b)))++~case case count(*) when  -max(t1.c) then min(b) else min(17) end when max( -t1.a) then (min(t1.f)) else max((a)) end*cast(avg(f) AS integer)+max(19) from t1 union select count(distinct f) from t1)),(t1.e)) | t1.b}
+} {}
+do_test randexpr-2.629 {
+  db eval {SELECT a+a+(f)-(t1.f+d+t1.e | case when case (13) when t1.c then case coalesce((select  -t1.b-t1.f-13 from t1 where t1.f between t1.d and (a)),t1.b) when b then 13 else t1.f end-f else t1.d end>=e then 19 else t1.c end*t1.c)*f-(t1.d)-b FROM t1 WHERE NOT ((t1.b)=t1.a+t1.d-13 | +~f+13 | e+t1.c+coalesce((select t1.a+e from t1 where b in (select (~max(b-t1.b-coalesce((select ((a)) from t1 where e=d or b not between b and t1.e),t1.b)))++~case case count(*) when  -max(t1.c) then min(b) else min(17) end when max( -t1.a) then (min(t1.f)) else max((a)) end*cast(avg(f) AS integer)+max(19) from t1 union select count(distinct f) from t1)),(t1.e)) | t1.b)}
+} {-54045400}
+do_test randexpr-2.630 {
+  db eval {SELECT a+a+(f)-(t1.f+d+t1.e & case when case (13) when t1.c then case coalesce((select  -t1.b-t1.f-13 from t1 where t1.f between t1.d and (a)),t1.b) when b then 13 else t1.f end-f else t1.d end>=e then 19 else t1.c end*t1.c)*f-(t1.d)-b FROM t1 WHERE NOT ((t1.b)=t1.a+t1.d-13 | +~f+13 | e+t1.c+coalesce((select t1.a+e from t1 where b in (select (~max(b-t1.b-coalesce((select ((a)) from t1 where e=d or b not between b and t1.e),t1.b)))++~case case count(*) when  -max(t1.c) then min(b) else min(17) end when max( -t1.a) then (min(t1.f)) else max((a)) end*cast(avg(f) AS integer)+max(19) from t1 union select count(distinct f) from t1)),(t1.e)) | t1.b)}
+} {-854200}
+do_test randexpr-2.631 {
+  db eval {SELECT 19-e+t1.d | 19-(abs(11)/abs(t1.b-(select case cast(avg(t1.f) AS integer)-count(*)-count(distinct t1.c)-abs(count(*))-(cast(avg(case when 11<b then d when (c) in (t1.a,t1.b,t1.a) then t1.a else t1.f end) AS integer) | min(t1.a) | (max(t1.a)))+max((t1.d)) when min(t1.a) then  -count(*) else min((e)) end from t1)*19))-c+13 FROM t1 WHERE case when case when not b-(t1.c)-11 in (case  -(b*11) when t1.d then coalesce((select 13 from t1 where e<>b),t1.d) else ~11 end+t1.b,11,19) then t1.a else  -t1.d-case d*a when t1.d then t1.e else 13 end end+e+b>19 then t1.a else t1.f end not between t1.d and e}
+} {-1}
+do_test randexpr-2.632 {
+  db eval {SELECT 19-e+t1.d | 19-(abs(11)/abs(t1.b-(select case cast(avg(t1.f) AS integer)-count(*)-count(distinct t1.c)-abs(count(*))-(cast(avg(case when 11<b then d when (c) in (t1.a,t1.b,t1.a) then t1.a else t1.f end) AS integer) | min(t1.a) | (max(t1.a)))+max((t1.d)) when min(t1.a) then  -count(*) else min((e)) end from t1)*19))-c+13 FROM t1 WHERE NOT (case when case when not b-(t1.c)-11 in (case  -(b*11) when t1.d then coalesce((select 13 from t1 where e<>b),t1.d) else ~11 end+t1.b,11,19) then t1.a else  -t1.d-case d*a when t1.d then t1.e else 13 end end+e+b>19 then t1.a else t1.f end not between t1.d and e)}
+} {}
+do_test randexpr-2.633 {
+  db eval {SELECT 19-e+t1.d & 19-(abs(11)/abs(t1.b-(select case cast(avg(t1.f) AS integer)-count(*)-count(distinct t1.c)-abs(count(*))-(cast(avg(case when 11<b then d when (c) in (t1.a,t1.b,t1.a) then t1.a else t1.f end) AS integer) & min(t1.a) & (max(t1.a)))+max((t1.d)) when min(t1.a) then  -count(*) else min((e)) end from t1)*19))-c+13 FROM t1 WHERE case when case when not b-(t1.c)-11 in (case  -(b*11) when t1.d then coalesce((select 13 from t1 where e<>b),t1.d) else ~11 end+t1.b,11,19) then t1.a else  -t1.d-case d*a when t1.d then t1.e else 13 end end+e+b>19 then t1.a else t1.f end not between t1.d and e}
+} {-348}
+do_test randexpr-2.634 {
+  db eval {SELECT (select abs(abs(~ -min(case t1.a-d when (abs(f)/abs(f+t1.b)) then ~e-11-+ -13*t1.a else 13 end)-count(*)*case + -count(*) when (count(distinct t1.e)) then max(t1.f) else (count(*)* - -+count(*) | min(17)) end+(cast(avg(t1.f) AS integer))+min(d))) from t1) FROM t1 WHERE not t1.f>=t1.a or not exists(select 1 from t1 where 19=17) and 13 in (select abs(count(*) | ((count(*)))) from t1 union select count(distinct  -t1.c | t1.a) | abs(abs(min(d+c))) from t1)}
+} {}
+do_test randexpr-2.635 {
+  db eval {SELECT (select abs(abs(~ -min(case t1.a-d when (abs(f)/abs(f+t1.b)) then ~e-11-+ -13*t1.a else 13 end)-count(*)*case + -count(*) when (count(distinct t1.e)) then max(t1.f) else (count(*)* - -+count(*) | min(17)) end+(cast(avg(t1.f) AS integer))+min(d))) from t1) FROM t1 WHERE NOT (not t1.f>=t1.a or not exists(select 1 from t1 where 19=17) and 13 in (select abs(count(*) | ((count(*)))) from t1 union select count(distinct  -t1.c | t1.a) | abs(abs(min(d+c))) from t1))}
+} {995}
+do_test randexpr-2.636 {
+  db eval {SELECT (select abs(abs(~ -min(case t1.a-d when (abs(f)/abs(f+t1.b)) then ~e-11-+ -13*t1.a else 13 end)-count(*)*case + -count(*) when (count(distinct t1.e)) then max(t1.f) else (count(*)* - -+count(*) & min(17)) end+(cast(avg(t1.f) AS integer))+min(d))) from t1) FROM t1 WHERE NOT (not t1.f>=t1.a or not exists(select 1 from t1 where 19=17) and 13 in (select abs(count(*) | ((count(*)))) from t1 union select count(distinct  -t1.c | t1.a) | abs(abs(min(d+c))) from t1))}
+} {1011}
+do_test randexpr-2.637 {
+  db eval {SELECT (case when not exists(select 1 from t1 where ((not t1.f in (b,17-d,t1.a) and f<t1.f)) or b=t1.e or a in (select  - -count(distinct t1.c) from t1 union select min(11) from t1)) then (select case max( -t1.c) when (~ -count(distinct (b))-count(*))* -count(*) then count(distinct 11) else  -cast(avg(c) AS integer) end | min(t1.e)*cast(avg(13) AS integer) from t1)+b else (abs(t1.c)/abs( -b)) end-t1.b) FROM t1 WHERE exists(select 1 from t1 where (13>=t1.a))}
+} {}
+do_test randexpr-2.638 {
+  db eval {SELECT (case when not exists(select 1 from t1 where ((not t1.f in (b,17-d,t1.a) and f<t1.f)) or b=t1.e or a in (select  - -count(distinct t1.c) from t1 union select min(11) from t1)) then (select case max( -t1.c) when (~ -count(distinct (b))-count(*))* -count(*) then count(distinct 11) else  -cast(avg(c) AS integer) end | min(t1.e)*cast(avg(13) AS integer) from t1)+b else (abs(t1.c)/abs( -b)) end-t1.b) FROM t1 WHERE NOT (exists(select 1 from t1 where (13>=t1.a)))}
+} {-12}
+do_test randexpr-2.639 {
+  db eval {SELECT (case when not exists(select 1 from t1 where ((not t1.f in (b,17-d,t1.a) and f<t1.f)) or b=t1.e or a in (select  - -count(distinct t1.c) from t1 union select min(11) from t1)) then (select case max( -t1.c) when (~ -count(distinct (b))-count(*))* -count(*) then count(distinct 11) else  -cast(avg(c) AS integer) end & min(t1.e)*cast(avg(13) AS integer) from t1)+b else (abs(t1.c)/abs( -b)) end-t1.b) FROM t1 WHERE NOT (exists(select 1 from t1 where (13>=t1.a)))}
+} {6212}
+do_test randexpr-2.640 {
+  db eval {SELECT coalesce((select t1.a from t1 where case when +(abs(e)/abs(19))+(abs(coalesce((select max(b) from t1 where 19 not in (f,(c),11) or  -c not in (t1.f,e,d)),13)*e+t1.f)/abs((d)))<>t1.b then t1.e when t1.d not in (t1.f,17,t1.b) or t1.f not between t1.d and 13 then t1.a else t1.e end>e or not exists(select 1 from t1 where a>=e or not exists(select 1 from t1 where d<>t1.b))),f)+19 FROM t1 WHERE 13 in (case when (select +max( -t1.b+a*case when not 13*13<t1.c then 19 else d end*11*c)+max(b) from t1)<>t1.f and ~e>= -t1.b then t1.c when 11 not between t1.d and e and (d<c) then t1.f else d end | e,a,t1.c)}
+} {}
+do_test randexpr-2.641 {
+  db eval {SELECT coalesce((select t1.a from t1 where case when +(abs(e)/abs(19))+(abs(coalesce((select max(b) from t1 where 19 not in (f,(c),11) or  -c not in (t1.f,e,d)),13)*e+t1.f)/abs((d)))<>t1.b then t1.e when t1.d not in (t1.f,17,t1.b) or t1.f not between t1.d and 13 then t1.a else t1.e end>e or not exists(select 1 from t1 where a>=e or not exists(select 1 from t1 where d<>t1.b))),f)+19 FROM t1 WHERE NOT (13 in (case when (select +max( -t1.b+a*case when not 13*13<t1.c then 19 else d end*11*c)+max(b) from t1)<>t1.f and ~e>= -t1.b then t1.c when 11 not between t1.d and e and (d<c) then t1.f else d end | e,a,t1.c))}
+} {119}
+do_test randexpr-2.642 {
+  db eval {SELECT +coalesce((select case when coalesce((select f+t1.e from t1 where b not in (case when not exists(select 1 from t1 where (f not in (t1.f-t1.b,t1.d,t1.d))) then t1.a when t1.f*t1.c*17>+(t1.e*(d))-t1.d then t1.f else 11 end,17,f)),e) | 19-13<d then t1.a else t1.d end from t1 where d not between c and e),19) FROM t1 WHERE not exists(select 1 from t1 where ((t1.c not between case d-c+(t1.b) when d then 17 else 13 end+f and coalesce((select t1.f from t1 where ((t1.f*case when not exists(select 1 from t1 where t1.f>=t1.b) then (select max(11)-(count(distinct f)) from t1) else t1.a end+c in (t1.d,e,f) or e in (11,11,11)))),b)*t1.b*11))) and t1.b>=a}
+} {}
+do_test randexpr-2.643 {
+  db eval {SELECT +coalesce((select case when coalesce((select f+t1.e from t1 where b not in (case when not exists(select 1 from t1 where (f not in (t1.f-t1.b,t1.d,t1.d))) then t1.a when t1.f*t1.c*17>+(t1.e*(d))-t1.d then t1.f else 11 end,17,f)),e) | 19-13<d then t1.a else t1.d end from t1 where d not between c and e),19) FROM t1 WHERE NOT (not exists(select 1 from t1 where ((t1.c not between case d-c+(t1.b) when d then 17 else 13 end+f and coalesce((select t1.f from t1 where ((t1.f*case when not exists(select 1 from t1 where t1.f>=t1.b) then (select max(11)-(count(distinct f)) from t1) else t1.a end+c in (t1.d,e,f) or e in (11,11,11)))),b)*t1.b*11))) and t1.b>=a)}
+} {19}
+do_test randexpr-2.644 {
+  db eval {SELECT +coalesce((select case when coalesce((select f+t1.e from t1 where b not in (case when not exists(select 1 from t1 where (f not in (t1.f-t1.b,t1.d,t1.d))) then t1.a when t1.f*t1.c*17>+(t1.e*(d))-t1.d then t1.f else 11 end,17,f)),e) & 19-13<d then t1.a else t1.d end from t1 where d not between c and e),19) FROM t1 WHERE NOT (not exists(select 1 from t1 where ((t1.c not between case d-c+(t1.b) when d then 17 else 13 end+f and coalesce((select t1.f from t1 where ((t1.f*case when not exists(select 1 from t1 where t1.f>=t1.b) then (select max(11)-(count(distinct f)) from t1) else t1.a end+c in (t1.d,e,f) or e in (11,11,11)))),b)*t1.b*11))) and t1.b>=a)}
+} {19}
+do_test randexpr-2.645 {
+  db eval {SELECT (case when case 19 when b then 13 else t1.e end in (select (c) from t1 union select a from t1) then 11 else (d*coalesce((select t1.b from t1 where 19 | (t1.c)+case when  -17>t1.a then t1.a when (19>=13) then t1.a else t1.e end=f and (e)>a or 11 in (select e from t1 union select t1.b from t1)),t1.d*t1.e))+c+a end) FROM t1 WHERE case case when case when not (abs(t1.d | f)/abs(a)) in (d,a,t1.c) then  -d when (not exists(select 1 from t1 where f>=c)) then t1.a else e end+t1.d not in (t1.b,(t1.f),11) or not exists(select 1 from t1 where not exists(select 1 from t1 where t1.b in (19,t1.c,13))) then b+t1.c when t1.d>=t1.a then t1.c else (c) end when (13) then t1.e else b end in (t1.a,t1.b,13)}
+} {80000400}
+do_test randexpr-2.646 {
+  db eval {SELECT (case when case 19 when b then 13 else t1.e end in (select (c) from t1 union select a from t1) then 11 else (d*coalesce((select t1.b from t1 where 19 | (t1.c)+case when  -17>t1.a then t1.a when (19>=13) then t1.a else t1.e end=f and (e)>a or 11 in (select e from t1 union select t1.b from t1)),t1.d*t1.e))+c+a end) FROM t1 WHERE NOT (case case when case when not (abs(t1.d | f)/abs(a)) in (d,a,t1.c) then  -d when (not exists(select 1 from t1 where f>=c)) then t1.a else e end+t1.d not in (t1.b,(t1.f),11) or not exists(select 1 from t1 where not exists(select 1 from t1 where t1.b in (19,t1.c,13))) then b+t1.c when t1.d>=t1.a then t1.c else (c) end when (13) then t1.e else b end in (t1.a,t1.b,13))}
+} {}
+do_test randexpr-2.647 {
+  db eval {SELECT (case when case 19 when b then 13 else t1.e end in (select (c) from t1 union select a from t1) then 11 else (d*coalesce((select t1.b from t1 where 19 & (t1.c)+case when  -17>t1.a then t1.a when (19>=13) then t1.a else t1.e end=f and (e)>a or 11 in (select e from t1 union select t1.b from t1)),t1.d*t1.e))+c+a end) FROM t1 WHERE case case when case when not (abs(t1.d | f)/abs(a)) in (d,a,t1.c) then  -d when (not exists(select 1 from t1 where f>=c)) then t1.a else e end+t1.d not in (t1.b,(t1.f),11) or not exists(select 1 from t1 where not exists(select 1 from t1 where t1.b in (19,t1.c,13))) then b+t1.c when t1.d>=t1.a then t1.c else (c) end when (13) then t1.e else b end in (t1.a,t1.b,13)}
+} {80000400}
+do_test randexpr-2.648 {
+  db eval {SELECT case when 19<=19 then d when not exists(select 1 from t1 where case case when case when (select  -min(((t1.f)))*((cast(avg(t1.d) AS integer))) from t1) in (select t1.a-b from t1 union select 17 from t1) then f when (19 not between t1.c and 13 and f>13) then d else a end | b-t1.b in (t1.e,t1.f, -d) then t1.e when c<t1.e then ( -b) else (c) end-t1.e | (17)+17 when 13 then t1.a else d end+19>=17) then t1.e else t1.e end FROM t1 WHERE coalesce((select +a- -t1.d*b*coalesce((select t1.c from t1 where t1.a in (select (abs(11)/abs(case when not exists(select 1 from t1 where +e=t1.e) then case t1.b when a-c then b else b end when (not exists(select 1 from t1 where 19 in (select 13 from t1 union select t1.b from t1))) and e in (t1.e, -f,e) then 19 else t1.a end)) from t1 union select b from t1)),17)*d from t1 where t1.f not in (t1.a,(t1.b),t1.d)),13)<=(13)}
+} {}
+do_test randexpr-2.649 {
+  db eval {SELECT case when 19<=19 then d when not exists(select 1 from t1 where case case when case when (select  -min(((t1.f)))*((cast(avg(t1.d) AS integer))) from t1) in (select t1.a-b from t1 union select 17 from t1) then f when (19 not between t1.c and 13 and f>13) then d else a end | b-t1.b in (t1.e,t1.f, -d) then t1.e when c<t1.e then ( -b) else (c) end-t1.e | (17)+17 when 13 then t1.a else d end+19>=17) then t1.e else t1.e end FROM t1 WHERE NOT (coalesce((select +a- -t1.d*b*coalesce((select t1.c from t1 where t1.a in (select (abs(11)/abs(case when not exists(select 1 from t1 where +e=t1.e) then case t1.b when a-c then b else b end when (not exists(select 1 from t1 where 19 in (select 13 from t1 union select t1.b from t1))) and e in (t1.e, -f,e) then 19 else t1.a end)) from t1 union select b from t1)),17)*d from t1 where t1.f not in (t1.a,(t1.b),t1.d)),13)<=(13))}
+} {400}
+do_test randexpr-2.650 {
+  db eval {SELECT case when 19<=19 then d when not exists(select 1 from t1 where case case when case when (select  -min(((t1.f)))*((cast(avg(t1.d) AS integer))) from t1) in (select t1.a-b from t1 union select 17 from t1) then f when (19 not between t1.c and 13 and f>13) then d else a end & b-t1.b in (t1.e,t1.f, -d) then t1.e when c<t1.e then ( -b) else (c) end-t1.e & (17)+17 when 13 then t1.a else d end+19>=17) then t1.e else t1.e end FROM t1 WHERE NOT (coalesce((select +a- -t1.d*b*coalesce((select t1.c from t1 where t1.a in (select (abs(11)/abs(case when not exists(select 1 from t1 where +e=t1.e) then case t1.b when a-c then b else b end when (not exists(select 1 from t1 where 19 in (select 13 from t1 union select t1.b from t1))) and e in (t1.e, -f,e) then 19 else t1.a end)) from t1 union select b from t1)),17)*d from t1 where t1.f not in (t1.a,(t1.b),t1.d)),13)<=(13))}
+} {400}
+do_test randexpr-2.651 {
+  db eval {SELECT case when c<=t1.b*e+case when not exists(select 1 from t1 where a+ -t1.f= -t1.e*(17)+f and 19 in (select  -13 from t1 union select t1.f from t1) and 19>=t1.a or  -11 in (select a from t1 union select 17 from t1)) then t1.f else 19 end+t1.d or ((c))<>a then t1.f-t1.c when c not between ((t1.b)) and f then a else d end FROM t1 WHERE coalesce((select t1.e from t1 where t1.c in (t1.a,f,coalesce((select max( -f) from t1 where t1.f<coalesce((select (select cast(avg(b) AS integer) from t1) from t1 where a>=(abs(13)/abs(~19+(abs((select count(distinct t1.f) from t1))/abs(coalesce((select 13 from t1 where d | 17*c*a*b+d<>t1.a),b)-(b)))))),b)),19))),t1.e)*c<>t1.e}
+} {300}
+do_test randexpr-2.652 {
+  db eval {SELECT case when c<=t1.b*e+case when not exists(select 1 from t1 where a+ -t1.f= -t1.e*(17)+f and 19 in (select  -13 from t1 union select t1.f from t1) and 19>=t1.a or  -11 in (select a from t1 union select 17 from t1)) then t1.f else 19 end+t1.d or ((c))<>a then t1.f-t1.c when c not between ((t1.b)) and f then a else d end FROM t1 WHERE NOT (coalesce((select t1.e from t1 where t1.c in (t1.a,f,coalesce((select max( -f) from t1 where t1.f<coalesce((select (select cast(avg(b) AS integer) from t1) from t1 where a>=(abs(13)/abs(~19+(abs((select count(distinct t1.f) from t1))/abs(coalesce((select 13 from t1 where d | 17*c*a*b+d<>t1.a),b)-(b)))))),b)),19))),t1.e)*c<>t1.e)}
+} {}
+do_test randexpr-2.653 {
+  db eval {SELECT case when t1.c>=13 or d in (select case ((case min(t1.f)+min(f) when max( -11) then min(19) else cast(avg( -t1.d) AS integer) end | count(*))) when count(distinct 13) then  -cast(avg( -t1.e) AS integer) else min(e) end from t1 union select max( -a) from t1) then case when +c-11+(t1.d)<e or f in (select 17 from t1 union select 13 from t1) then f when t1.c in (select t1.c from t1 union select 19 from t1) then t1.f else  -f end when e in (a,19,t1.e) then t1.d else f end FROM t1 WHERE (c<=t1.f or 11<case when t1.b+ -~a*case when exists(select 1 from t1 where case when b | 17 not between 17 and c then 11 else t1.e end in (d,a,b)) then t1.b when t1.b not in (t1.f,b,c) then 11 else b end>13 then d when not exists(select 1 from t1 where t1.c in (f,t1.b,t1.b)) then a else 19 end*t1.c and t1.d>=19)}
+} {600}
+do_test randexpr-2.654 {
+  db eval {SELECT case when t1.c>=13 or d in (select case ((case min(t1.f)+min(f) when max( -11) then min(19) else cast(avg( -t1.d) AS integer) end | count(*))) when count(distinct 13) then  -cast(avg( -t1.e) AS integer) else min(e) end from t1 union select max( -a) from t1) then case when +c-11+(t1.d)<e or f in (select 17 from t1 union select 13 from t1) then f when t1.c in (select t1.c from t1 union select 19 from t1) then t1.f else  -f end when e in (a,19,t1.e) then t1.d else f end FROM t1 WHERE NOT ((c<=t1.f or 11<case when t1.b+ -~a*case when exists(select 1 from t1 where case when b | 17 not between 17 and c then 11 else t1.e end in (d,a,b)) then t1.b when t1.b not in (t1.f,b,c) then 11 else b end>13 then d when not exists(select 1 from t1 where t1.c in (f,t1.b,t1.b)) then a else 19 end*t1.c and t1.d>=19))}
+} {}
+do_test randexpr-2.655 {
+  db eval {SELECT case when t1.c>=13 or d in (select case ((case min(t1.f)+min(f) when max( -11) then min(19) else cast(avg( -t1.d) AS integer) end & count(*))) when count(distinct 13) then  -cast(avg( -t1.e) AS integer) else min(e) end from t1 union select max( -a) from t1) then case when +c-11+(t1.d)<e or f in (select 17 from t1 union select 13 from t1) then f when t1.c in (select t1.c from t1 union select 19 from t1) then t1.f else  -f end when e in (a,19,t1.e) then t1.d else f end FROM t1 WHERE (c<=t1.f or 11<case when t1.b+ -~a*case when exists(select 1 from t1 where case when b | 17 not between 17 and c then 11 else t1.e end in (d,a,b)) then t1.b when t1.b not in (t1.f,b,c) then 11 else b end>13 then d when not exists(select 1 from t1 where t1.c in (f,t1.b,t1.b)) then a else 19 end*t1.c and t1.d>=19)}
+} {600}
+do_test randexpr-2.656 {
+  db eval {SELECT t1.a+(e*a)*t1.d+(abs(d)/abs(case when case f when t1.a then t1.f else d end*t1.f*t1.e*c*17+coalesce((select t1.d from t1 where c<=~t1.f | 13),e)*t1.a<case when 13 between a and 19 and c<a then t1.b else f end then t1.e when exists(select 1 from t1 where ((t1.b)=t1.f)) then t1.c else f end)) FROM t1 WHERE d*19 between 11 and f}
+} {}
+do_test randexpr-2.657 {
+  db eval {SELECT t1.a+(e*a)*t1.d+(abs(d)/abs(case when case f when t1.a then t1.f else d end*t1.f*t1.e*c*17+coalesce((select t1.d from t1 where c<=~t1.f | 13),e)*t1.a<case when 13 between a and 19 and c<a then t1.b else f end then t1.e when exists(select 1 from t1 where ((t1.b)=t1.f)) then t1.c else f end)) FROM t1 WHERE NOT (d*19 between 11 and f)}
+} {20000100}
+do_test randexpr-2.658 {
+  db eval {SELECT t1.a+(e*a)*t1.d+(abs(d)/abs(case when case f when t1.a then t1.f else d end*t1.f*t1.e*c*17+coalesce((select t1.d from t1 where c<=~t1.f & 13),e)*t1.a<case when 13 between a and 19 and c<a then t1.b else f end then t1.e when exists(select 1 from t1 where ((t1.b)=t1.f)) then t1.c else f end)) FROM t1 WHERE NOT (d*19 between 11 and f)}
+} {20000100}
+do_test randexpr-2.659 {
+  db eval {SELECT case f when (abs(t1.f)/abs(case when d+case when exists(select 1 from t1 where exists(select 1 from t1 where exists(select 1 from t1 where case when not case when +11>=t1.d then t1.d when (t1.b)<>17 or t1.b<=t1.c then a else (e) end in (select min(t1.e) from t1 union select abs( -max((17))) from t1) then c when 19<>17 then 13 else  -d end>t1.d))) then 17 when t1.a<=13 then coalesce((select (17) | t1.c from t1 where t1.e>d),b) else 13 end in (select min(f) from t1 union select count(*) from t1) then 19 else t1.f end)) then t1.f else f end FROM t1 WHERE coalesce((select max(11 | e+case c*t1.b+13 when 19 | ~t1.f+case when d>11 then t1.f-(case t1.d when a then 19+t1.f else t1.b end) else d-case e when c+t1.a then 13 else case when not exists(select 1 from t1 where (t1.d)<>17) then d when b in ( -f,11,17) then 11 else t1.f end end end+d then e else t1.a end) from t1 where t1.a>= -11),b)>t1.c}
+} {600}
+do_test randexpr-2.660 {
+  db eval {SELECT case f when (abs(t1.f)/abs(case when d+case when exists(select 1 from t1 where exists(select 1 from t1 where exists(select 1 from t1 where case when not case when +11>=t1.d then t1.d when (t1.b)<>17 or t1.b<=t1.c then a else (e) end in (select min(t1.e) from t1 union select abs( -max((17))) from t1) then c when 19<>17 then 13 else  -d end>t1.d))) then 17 when t1.a<=13 then coalesce((select (17) | t1.c from t1 where t1.e>d),b) else 13 end in (select min(f) from t1 union select count(*) from t1) then 19 else t1.f end)) then t1.f else f end FROM t1 WHERE NOT (coalesce((select max(11 | e+case c*t1.b+13 when 19 | ~t1.f+case when d>11 then t1.f-(case t1.d when a then 19+t1.f else t1.b end) else d-case e when c+t1.a then 13 else case when not exists(select 1 from t1 where (t1.d)<>17) then d when b in ( -f,11,17) then 11 else t1.f end end end+d then e else t1.a end) from t1 where t1.a>= -11),b)>t1.c)}
+} {}
+do_test randexpr-2.661 {
+  db eval {SELECT case f when (abs(t1.f)/abs(case when d+case when exists(select 1 from t1 where exists(select 1 from t1 where exists(select 1 from t1 where case when not case when +11>=t1.d then t1.d when (t1.b)<>17 or t1.b<=t1.c then a else (e) end in (select min(t1.e) from t1 union select abs( -max((17))) from t1) then c when 19<>17 then 13 else  -d end>t1.d))) then 17 when t1.a<=13 then coalesce((select (17) & t1.c from t1 where t1.e>d),b) else 13 end in (select min(f) from t1 union select count(*) from t1) then 19 else t1.f end)) then t1.f else f end FROM t1 WHERE coalesce((select max(11 | e+case c*t1.b+13 when 19 | ~t1.f+case when d>11 then t1.f-(case t1.d when a then 19+t1.f else t1.b end) else d-case e when c+t1.a then 13 else case when not exists(select 1 from t1 where (t1.d)<>17) then d when b in ( -f,11,17) then 11 else t1.f end end end+d then e else t1.a end) from t1 where t1.a>= -11),b)>t1.c}
+} {600}
+do_test randexpr-2.662 {
+  db eval {SELECT (select abs(case max(t1.b)-(min(17))* -count(distinct case when case t1.f when t1.b then case e when c then t1.c else c end else t1.b end>=t1.e then d else e end) | ~+count(distinct t1.c)-(abs( -count(*))- -max(c)) | count(distinct t1.c) when count(distinct ( -t1.c)) then count(*) else max(t1.b) end* -count(*))-cast(avg( -11) AS integer)*min(19)+max(e) from t1) FROM t1 WHERE t1.a+t1.a>13}
+} {909}
+do_test randexpr-2.663 {
+  db eval {SELECT (select abs(case max(t1.b)-(min(17))* -count(distinct case when case t1.f when t1.b then case e when c then t1.c else c end else t1.b end>=t1.e then d else e end) | ~+count(distinct t1.c)-(abs( -count(*))- -max(c)) | count(distinct t1.c) when count(distinct ( -t1.c)) then count(*) else max(t1.b) end* -count(*))-cast(avg( -11) AS integer)*min(19)+max(e) from t1) FROM t1 WHERE NOT (t1.a+t1.a>13)}
+} {}
+do_test randexpr-2.664 {
+  db eval {SELECT (select abs(case max(t1.b)-(min(17))* -count(distinct case when case t1.f when t1.b then case e when c then t1.c else c end else t1.b end>=t1.e then d else e end) & ~+count(distinct t1.c)-(abs( -count(*))- -max(c)) & count(distinct t1.c) when count(distinct ( -t1.c)) then count(*) else max(t1.b) end* -count(*))-cast(avg( -11) AS integer)*min(19)+max(e) from t1) FROM t1 WHERE t1.a+t1.a>13}
+} {710}
+do_test randexpr-2.665 {
+  db eval {SELECT (t1.d- -c+e-f++case when a between case f when case when ~~~11-coalesce((select b from t1 where coalesce((select max(e) from t1 where not t1.d>= -11),a)+a between 11 and t1.a), -d)*17-a-13 | 13>=17 then a else 11 end then t1.a else t1.d end and t1.f then 19 else t1.a end) FROM t1 WHERE t1.f<> -13}
+} {700}
+do_test randexpr-2.666 {
+  db eval {SELECT (t1.d- -c+e-f++case when a between case f when case when ~~~11-coalesce((select b from t1 where coalesce((select max(e) from t1 where not t1.d>= -11),a)+a between 11 and t1.a), -d)*17-a-13 | 13>=17 then a else 11 end then t1.a else t1.d end and t1.f then 19 else t1.a end) FROM t1 WHERE NOT (t1.f<> -13)}
+} {}
+do_test randexpr-2.667 {
+  db eval {SELECT (t1.d- -c+e-f++case when a between case f when case when ~~~11-coalesce((select b from t1 where coalesce((select max(e) from t1 where not t1.d>= -11),a)+a between 11 and t1.a), -d)*17-a-13 & 13>=17 then a else 11 end then t1.a else t1.d end and t1.f then 19 else t1.a end) FROM t1 WHERE t1.f<> -13}
+} {700}
+do_test randexpr-2.668 {
+  db eval {SELECT (abs(case when (c<=b+t1.b) then  -11+t1.a-d when b*(select count(distinct e)*+max(~t1.a*case when (select count(*)*+min(t1.b)+max(t1.a) from t1) in (c,t1.d,t1.d) then (select  -(count(*)) from t1) else e end) from t1)<=a-11 then 11 else t1.e end)/abs(t1.e))+c FROM t1 WHERE a<+coalesce((select t1.f from t1 where exists(select 1 from t1 where ~case when (e not between t1.a-~case d when b then  -c else 13 end and d) then 11 else a end+17-f-a*19*t1.f not in (f, -t1.d,11))),c)-t1.f and (t1.d<17) and t1.f=c or f<= -e}
+} {}
+do_test randexpr-2.669 {
+  db eval {SELECT (abs(case when (c<=b+t1.b) then  -11+t1.a-d when b*(select count(distinct e)*+max(~t1.a*case when (select count(*)*+min(t1.b)+max(t1.a) from t1) in (c,t1.d,t1.d) then (select  -(count(*)) from t1) else e end) from t1)<=a-11 then 11 else t1.e end)/abs(t1.e))+c FROM t1 WHERE NOT (a<+coalesce((select t1.f from t1 where exists(select 1 from t1 where ~case when (e not between t1.a-~case d when b then  -c else 13 end and d) then 11 else a end+17-f-a*19*t1.f not in (f, -t1.d,11))),c)-t1.f and (t1.d<17) and t1.f=c or f<= -e)}
+} {300}
+do_test randexpr-2.670 {
+  db eval {SELECT case when case when c in (select abs((max(d*case t1.b when t1.b+t1.f then d else b end+d))- - -~count(*)*cast(avg(t1.b) AS integer)-min(d)*cast(avg(b) AS integer)*count(*)) from t1 union select  -count(distinct t1.f) from t1) then case when 17 between t1.f and 11 then c else d end when t1.c>=13 then a else a end<=c then t1.d else 13 end+e FROM t1 WHERE t1.f between  -11 and b}
+} {}
+do_test randexpr-2.671 {
+  db eval {SELECT case when case when c in (select abs((max(d*case t1.b when t1.b+t1.f then d else b end+d))- - -~count(*)*cast(avg(t1.b) AS integer)-min(d)*cast(avg(b) AS integer)*count(*)) from t1 union select  -count(distinct t1.f) from t1) then case when 17 between t1.f and 11 then c else d end when t1.c>=13 then a else a end<=c then t1.d else 13 end+e FROM t1 WHERE NOT (t1.f between  -11 and b)}
+} {900}
+do_test randexpr-2.672 {
+  db eval {SELECT b*~~t1.b*(a-t1.c+t1.b)+13-+~case t1.b when d then case 17*13 when t1.e then case when case when t1.c<>~(11) then t1.e else coalesce((select max( -c) from t1 where (f<>e)),t1.f) end<=a then (t1.c) else t1.c end else  -f end else 13 end*t1.e-t1.f | 13 FROM t1 WHERE b between (d) and t1.c*(abs(t1.c-13 | t1.d+t1.a)/abs(13))}
+} {}
+do_test randexpr-2.673 {
+  db eval {SELECT b*~~t1.b*(a-t1.c+t1.b)+13-+~case t1.b when d then case 17*13 when t1.e then case when case when t1.c<>~(11) then t1.e else coalesce((select max( -c) from t1 where (f<>e)),t1.f) end<=a then (t1.c) else t1.c end else  -f end else 13 end*t1.e-t1.f | 13 FROM t1 WHERE NOT (b between (d) and t1.c*(abs(t1.c-13 | t1.d+t1.a)/abs(13)))}
+} {6413}
+do_test randexpr-2.674 {
+  db eval {SELECT b*~~t1.b*(a-t1.c+t1.b)+13-+~case t1.b when d then case 17*13 when t1.e then case when case when t1.c<>~(11) then t1.e else coalesce((select max( -c) from t1 where (f<>e)),t1.f) end<=a then (t1.c) else t1.c end else  -f end else 13 end*t1.e-t1.f & 13 FROM t1 WHERE NOT (b between (d) and t1.c*(abs(t1.c-13 | t1.d+t1.a)/abs(13)))}
+} {13}
+do_test randexpr-2.675 {
+  db eval {SELECT case when t1.b in (select case 13 when 13 | t1.e then case +(select (min((e)))-case count(*) | max(t1.b*d+17+e) when abs(count(distinct (11))*count(*)-cast(avg(a) AS integer) | max( -t1.a)) then (count(distinct 13)) else  -(cast(avg(t1.b) AS integer)) end from t1) when (select count(distinct e) from t1) then t1.e else a+(t1.b) end-d-t1.d else t1.e end from t1 union select (f) from t1) then t1.b else (b) end FROM t1 WHERE b in (select a from t1 union select 11+t1.e from t1)}
+} {}
+do_test randexpr-2.676 {
+  db eval {SELECT case when t1.b in (select case 13 when 13 | t1.e then case +(select (min((e)))-case count(*) | max(t1.b*d+17+e) when abs(count(distinct (11))*count(*)-cast(avg(a) AS integer) | max( -t1.a)) then (count(distinct 13)) else  -(cast(avg(t1.b) AS integer)) end from t1) when (select count(distinct e) from t1) then t1.e else a+(t1.b) end-d-t1.d else t1.e end from t1 union select (f) from t1) then t1.b else (b) end FROM t1 WHERE NOT (b in (select a from t1 union select 11+t1.e from t1))}
+} {200}
+do_test randexpr-2.677 {
+  db eval {SELECT case when t1.b in (select case 13 when 13 & t1.e then case +(select (min((e)))-case count(*) & max(t1.b*d+17+e) when abs(count(distinct (11))*count(*)-cast(avg(a) AS integer) & max( -t1.a)) then (count(distinct 13)) else  -(cast(avg(t1.b) AS integer)) end from t1) when (select count(distinct e) from t1) then t1.e else a+(t1.b) end-d-t1.d else t1.e end from t1 union select (f) from t1) then t1.b else (b) end FROM t1 WHERE NOT (b in (select a from t1 union select 11+t1.e from t1))}
+} {200}
+do_test randexpr-2.678 {
+  db eval {SELECT coalesce((select 17 from t1 where d between 17 and 13),case when t1.f in (select c+a from t1 union select a from t1) and (abs(f)/abs(t1.b))-t1.e>=case when not exists(select 1 from t1 where t1.e>(select count(distinct t1.f) from t1)) then t1.f when (11)-~t1.f<case 13 when f then 19 else coalesce((select  -t1.c from t1 where 11<=t1.e),e) end then t1.e else 13 end*t1.e then t1.f else b end) FROM t1 WHERE  -coalesce((select max(11) from t1 where (abs( -case 19 when (abs(coalesce((select max(coalesce((select 13 from t1 where a>e),b)) from t1 where (t1.f) in (13,e,t1.c) or t1.c>13),t1.b))/abs(13)) then t1.b else d end)/abs(13)) in (t1.f,t1.e,t1.a) or 17 between 13 and f or (f>11 and t1.f<t1.b)),case when 19 not between  -17 and d then 11 when t1.c=d then t1.a else t1.f end)>=t1.e}
+} {}
+do_test randexpr-2.679 {
+  db eval {SELECT coalesce((select 17 from t1 where d between 17 and 13),case when t1.f in (select c+a from t1 union select a from t1) and (abs(f)/abs(t1.b))-t1.e>=case when not exists(select 1 from t1 where t1.e>(select count(distinct t1.f) from t1)) then t1.f when (11)-~t1.f<case 13 when f then 19 else coalesce((select  -t1.c from t1 where 11<=t1.e),e) end then t1.e else 13 end*t1.e then t1.f else b end) FROM t1 WHERE NOT ( -coalesce((select max(11) from t1 where (abs( -case 19 when (abs(coalesce((select max(coalesce((select 13 from t1 where a>e),b)) from t1 where (t1.f) in (13,e,t1.c) or t1.c>13),t1.b))/abs(13)) then t1.b else d end)/abs(13)) in (t1.f,t1.e,t1.a) or 17 between 13 and f or (f>11 and t1.f<t1.b)),case when 19 not between  -17 and d then 11 when t1.c=d then t1.a else t1.f end)>=t1.e)}
+} {200}
+do_test randexpr-2.680 {
+  db eval {SELECT (select min(19-case 19 when  -t1.a+13 then coalesce((select c from t1 where (abs(13)/abs(11))>=coalesce((select f+b*+t1.c from t1 where t1.c=+11+t1.e),11) or (e in (a,a,13) and t1.a<f) and t1.c not between t1.f and  -b),t1.b) else t1.b end) from t1) | f FROM t1 WHERE case 13-t1.e when 13 then f*c else ~f+(abs(t1.f | t1.e-c)/abs((coalesce((select max((select  -cast(avg(b) AS integer) from t1)-b) from t1 where 17 in (c,( -(f)),11) and 17>=f or t1.a=t1.e),t1.f)*t1.a+t1.f)*19)) end*f-t1.f in (select d from t1 union select t1.c from t1) and b in (t1.f,t1.d,c)}
+} {}
+do_test randexpr-2.681 {
+  db eval {SELECT (select min(19-case 19 when  -t1.a+13 then coalesce((select c from t1 where (abs(13)/abs(11))>=coalesce((select f+b*+t1.c from t1 where t1.c=+11+t1.e),11) or (e in (a,a,13) and t1.a<f) and t1.c not between t1.f and  -b),t1.b) else t1.b end) from t1) | f FROM t1 WHERE NOT (case 13-t1.e when 13 then f*c else ~f+(abs(t1.f | t1.e-c)/abs((coalesce((select max((select  -cast(avg(b) AS integer) from t1)-b) from t1 where 17 in (c,( -(f)),11) and 17>=f or t1.a=t1.e),t1.f)*t1.a+t1.f)*19)) end*f-t1.f in (select d from t1 union select t1.c from t1) and b in (t1.f,t1.d,c))}
+} {-165}
+do_test randexpr-2.682 {
+  db eval {SELECT (select min(19-case 19 when  -t1.a+13 then coalesce((select c from t1 where (abs(13)/abs(11))>=coalesce((select f+b*+t1.c from t1 where t1.c=+11+t1.e),11) or (e in (a,a,13) and t1.a<f) and t1.c not between t1.f and  -b),t1.b) else t1.b end) from t1) & f FROM t1 WHERE NOT (case 13-t1.e when 13 then f*c else ~f+(abs(t1.f | t1.e-c)/abs((coalesce((select max((select  -cast(avg(b) AS integer) from t1)-b) from t1 where 17 in (c,( -(f)),11) and 17>=f or t1.a=t1.e),t1.f)*t1.a+t1.f)*19)) end*f-t1.f in (select d from t1 union select t1.c from t1) and b in (t1.f,t1.d,c))}
+} {584}
+do_test randexpr-2.683 {
+  db eval {SELECT ~case when exists(select 1 from t1 where t1.c not between case case ~t1.b*19 when b then t1.c*t1.e else t1.d end when c then case ++13 when case when a+d+~~11 not between e and  -19 then 19 else b end then t1.d else 19 end else t1.a end and d) then 19 when c in (select abs(count(distinct 17)) from t1 union select max(t1.b) from t1) then (d) else t1.e end | 19 FROM t1 WHERE t1.d between 11 and ~19-coalesce((select d from t1 where (d>=c)),t1.d)*+t1.e+t1.e}
+} {}
+do_test randexpr-2.684 {
+  db eval {SELECT ~case when exists(select 1 from t1 where t1.c not between case case ~t1.b*19 when b then t1.c*t1.e else t1.d end when c then case ++13 when case when a+d+~~11 not between e and  -19 then 19 else b end then t1.d else 19 end else t1.a end and d) then 19 when c in (select abs(count(distinct 17)) from t1 union select max(t1.b) from t1) then (d) else t1.e end | 19 FROM t1 WHERE NOT (t1.d between 11 and ~19-coalesce((select d from t1 where (d>=c)),t1.d)*+t1.e+t1.e)}
+} {-485}
+do_test randexpr-2.685 {
+  db eval {SELECT ~case when exists(select 1 from t1 where t1.c not between case case ~t1.b*19 when b then t1.c*t1.e else t1.d end when c then case ++13 when case when a+d+~~11 not between e and  -19 then 19 else b end then t1.d else 19 end else t1.a end and d) then 19 when c in (select abs(count(distinct 17)) from t1 union select max(t1.b) from t1) then (d) else t1.e end & 19 FROM t1 WHERE NOT (t1.d between 11 and ~19-coalesce((select d from t1 where (d>=c)),t1.d)*+t1.e+t1.e)}
+} {3}
+do_test randexpr-2.686 {
+  db eval {SELECT +t1.b-17*11-coalesce((select coalesce((select max(t1.f+a-t1.c+b) from t1 where 17* -b+t1.e=13),coalesce((select +t1.f*coalesce((select b from t1 where 19 between  -a and c),t1.d) from t1 where 17<>b),17)*11) from t1 where f<c),e) |  -t1.e-b-t1.b-t1.e FROM t1 WHERE t1.b=11}
+} {}
+do_test randexpr-2.687 {
+  db eval {SELECT +t1.b-17*11-coalesce((select coalesce((select max(t1.f+a-t1.c+b) from t1 where 17* -b+t1.e=13),coalesce((select +t1.f*coalesce((select b from t1 where 19 between  -a and c),t1.d) from t1 where 17<>b),17)*11) from t1 where f<c),e) |  -t1.e-b-t1.b-t1.e FROM t1 WHERE NOT (t1.b=11)}
+} {-359}
+do_test randexpr-2.688 {
+  db eval {SELECT +t1.b-17*11-coalesce((select coalesce((select max(t1.f+a-t1.c+b) from t1 where 17* -b+t1.e=13),coalesce((select +t1.f*coalesce((select b from t1 where 19 between  -a and c),t1.d) from t1 where 17<>b),17)*11) from t1 where f<c),e) &  -t1.e-b-t1.b-t1.e FROM t1 WHERE NOT (t1.b=11)}
+} {-1528}
+do_test randexpr-2.689 {
+  db eval {SELECT  -d+t1.d-t1.a-+t1.c-(select +min((abs(+(case when b>=case when b not between  -t1.f and c then e else f end or a<=11 or t1.e between a and 11 or t1.d not in (b,d,d) then case when f>=c then t1.c else 19 end when t1.e=a then e else t1.e end) | f)/abs(t1.a))) from t1)+e* -t1.a+f+d FROM t1 WHERE t1.b<=t1.c+ -(abs(t1.b)/abs(case t1.b+t1.e when 11 then t1.c else 17 end))*coalesce((select coalesce((select coalesce((select 13 from t1 where b=t1.b),f) | t1.f-11 from t1 where (t1.c) in (select +min(19)*(~max(b)-max(11))*max(11) from t1 union select min(f) from t1)),t1.f) from t1 where f in (select case count(distinct 19) when max(t1.b) then  -cast(avg(t1.e) AS integer) else cast(avg(b) AS integer) end from t1 union select count(*) from t1)),t1.a)}
+} {}
+do_test randexpr-2.690 {
+  db eval {SELECT  -d+t1.d-t1.a-+t1.c-(select +min((abs(+(case when b>=case when b not between  -t1.f and c then e else f end or a<=11 or t1.e between a and 11 or t1.d not in (b,d,d) then case when f>=c then t1.c else 19 end when t1.e=a then e else t1.e end) | f)/abs(t1.a))) from t1)+e* -t1.a+f+d FROM t1 WHERE NOT (t1.b<=t1.c+ -(abs(t1.b)/abs(case t1.b+t1.e when 11 then t1.c else 17 end))*coalesce((select coalesce((select coalesce((select 13 from t1 where b=t1.b),f) | t1.f-11 from t1 where (t1.c) in (select +min(19)*(~max(b)-max(11))*max(11) from t1 union select min(f) from t1)),t1.f) from t1 where f in (select case count(distinct 19) when max(t1.b) then  -cast(avg(t1.e) AS integer) else cast(avg(b) AS integer) end from t1 union select count(*) from t1)),t1.a))}
+} {-49410}
+do_test randexpr-2.691 {
+  db eval {SELECT  -d+t1.d-t1.a-+t1.c-(select +min((abs(+(case when b>=case when b not between  -t1.f and c then e else f end or a<=11 or t1.e between a and 11 or t1.d not in (b,d,d) then case when f>=c then t1.c else 19 end when t1.e=a then e else t1.e end) & f)/abs(t1.a))) from t1)+e* -t1.a+f+d FROM t1 WHERE NOT (t1.b<=t1.c+ -(abs(t1.b)/abs(case t1.b+t1.e when 11 then t1.c else 17 end))*coalesce((select coalesce((select coalesce((select 13 from t1 where b=t1.b),f) | t1.f-11 from t1 where (t1.c) in (select +min(19)*(~max(b)-max(11))*max(11) from t1 union select min(f) from t1)),t1.f) from t1 where f in (select case count(distinct 19) when max(t1.b) then  -cast(avg(t1.e) AS integer) else cast(avg(b) AS integer) end from t1 union select count(*) from t1)),t1.a))}
+} {-49400}
+do_test randexpr-2.692 {
+  db eval {SELECT ~case +t1.a when t1.a then 19 else coalesce((select max(t1.d) from t1 where not exists(select 1 from t1 where t1.b*f<>e and e not in (17,t1.c-case when t1.e<19 then t1.c else (abs(t1.c)/abs(d*coalesce((select t1.e from t1 where exists(select 1 from t1 where t1.c in (select t1.f from t1 union select 11 from t1)) or t1.a<=t1.d),a))) end*t1.e,t1.e))),coalesce((select max(a) from t1 where (b) in ((11),e,b)),17)) end FROM t1 WHERE not (c)+c*d>t1.e and exists(select 1 from t1 where d*coalesce((select +case when ((select cast(avg((c)) AS integer)- -cast(avg(a) AS integer) from t1) in (select min(b)-count(*) from t1 union select count(distinct 19) from t1)) or not t1.b between 19 and 19 then t1.c else coalesce((select e from t1 where t1.e>=e),c) end from t1 where ( -f)<a),17)>19) and 17<> -t1.e and b>=a}
+} {}
+do_test randexpr-2.693 {
+  db eval {SELECT ~case +t1.a when t1.a then 19 else coalesce((select max(t1.d) from t1 where not exists(select 1 from t1 where t1.b*f<>e and e not in (17,t1.c-case when t1.e<19 then t1.c else (abs(t1.c)/abs(d*coalesce((select t1.e from t1 where exists(select 1 from t1 where t1.c in (select t1.f from t1 union select 11 from t1)) or t1.a<=t1.d),a))) end*t1.e,t1.e))),coalesce((select max(a) from t1 where (b) in ((11),e,b)),17)) end FROM t1 WHERE NOT (not (c)+c*d>t1.e and exists(select 1 from t1 where d*coalesce((select +case when ((select cast(avg((c)) AS integer)- -cast(avg(a) AS integer) from t1) in (select min(b)-count(*) from t1 union select count(distinct 19) from t1)) or not t1.b between 19 and 19 then t1.c else coalesce((select e from t1 where t1.e>=e),c) end from t1 where ( -f)<a),17)>19) and 17<> -t1.e and b>=a)}
+} {-20}
+do_test randexpr-2.694 {
+  db eval {SELECT coalesce((select max(t1.d-t1.e) from t1 where not exists(select 1 from t1 where c*+19<=(d)) or c+e not between a and ~f*t1.f*case when t1.e<> -coalesce((select case when ((e between t1.d and f)) then  -(17) | b else t1.d end from t1 where b in (select t1.c from t1 union select 11 from t1)),d) then t1.d when e not in ( -t1.b,t1.c,(t1.e)) then t1.c else d end), -b) FROM t1 WHERE t1.d<>d}
+} {}
+do_test randexpr-2.695 {
+  db eval {SELECT coalesce((select max(t1.d-t1.e) from t1 where not exists(select 1 from t1 where c*+19<=(d)) or c+e not between a and ~f*t1.f*case when t1.e<> -coalesce((select case when ((e between t1.d and f)) then  -(17) | b else t1.d end from t1 where b in (select t1.c from t1 union select 11 from t1)),d) then t1.d when e not in ( -t1.b,t1.c,(t1.e)) then t1.c else d end), -b) FROM t1 WHERE NOT (t1.d<>d)}
+} {-100}
+do_test randexpr-2.696 {
+  db eval {SELECT coalesce((select max(t1.d-t1.e) from t1 where not exists(select 1 from t1 where c*+19<=(d)) or c+e not between a and ~f*t1.f*case when t1.e<> -coalesce((select case when ((e between t1.d and f)) then  -(17) & b else t1.d end from t1 where b in (select t1.c from t1 union select 11 from t1)),d) then t1.d when e not in ( -t1.b,t1.c,(t1.e)) then t1.c else d end), -b) FROM t1 WHERE NOT (t1.d<>d)}
+} {-100}
+do_test randexpr-2.697 {
+  db eval {SELECT case when a in (select max(17) from t1 union select abs(count(*)) from t1) then t1.a- -e-t1.d | e- -t1.f*19+(select  -abs(max(a))*count(distinct e)*max(19) from t1)-11-13-d*11+t1.a else d end-b FROM t1 WHERE t1.e in (select (abs(case when (abs(f)/abs((select ~min(a) from t1)+coalesce((select t1.f from t1 where 11<>t1.b),19)))*t1.e+ -t1.d | e<=t1.f then  -e when (b)>t1.a then t1.d else t1.a end)/abs(11)) from t1 union select 13 from t1) and f not between t1.b and e or not exists(select 1 from t1 where not exists(select 1 from t1 where 19<c)) and t1.c not in (t1.d,e,t1.a)}
+} {200}
+do_test randexpr-2.698 {
+  db eval {SELECT case when a in (select max(17) from t1 union select abs(count(*)) from t1) then t1.a- -e-t1.d | e- -t1.f*19+(select  -abs(max(a))*count(distinct e)*max(19) from t1)-11-13-d*11+t1.a else d end-b FROM t1 WHERE NOT (t1.e in (select (abs(case when (abs(f)/abs((select ~min(a) from t1)+coalesce((select t1.f from t1 where 11<>t1.b),19)))*t1.e+ -t1.d | e<=t1.f then  -e when (b)>t1.a then t1.d else t1.a end)/abs(11)) from t1 union select 13 from t1) and f not between t1.b and e or not exists(select 1 from t1 where not exists(select 1 from t1 where 19<c)) and t1.c not in (t1.d,e,t1.a))}
+} {}
+do_test randexpr-2.699 {
+  db eval {SELECT case when a in (select max(17) from t1 union select abs(count(*)) from t1) then t1.a- -e-t1.d & e- -t1.f*19+(select  -abs(max(a))*count(distinct e)*max(19) from t1)-11-13-d*11+t1.a else d end-b FROM t1 WHERE t1.e in (select (abs(case when (abs(f)/abs((select ~min(a) from t1)+coalesce((select t1.f from t1 where 11<>t1.b),19)))*t1.e+ -t1.d | e<=t1.f then  -e when (b)>t1.a then t1.d else t1.a end)/abs(11)) from t1 union select 13 from t1) and f not between t1.b and e or not exists(select 1 from t1 where not exists(select 1 from t1 where 19<c)) and t1.c not in (t1.d,e,t1.a)}
+} {200}
+do_test randexpr-2.700 {
+  db eval {SELECT coalesce((select f from t1 where (case t1.a*t1.b*c when t1.d*coalesce((select max(coalesce((select 19 from t1 where t1.b in (select max(~case  -e when c+coalesce((select max(e) from t1 where (t1.d) not between c and t1.f),17) then c else 13 end) from t1 union select count(distinct a) from t1)),t1.f)) from t1 where f>t1.d),c) then 19 else 17 end between t1.b and t1.f and t1.d not in (c,e,(17)))),11) FROM t1 WHERE (((select min(t1.f) from t1)<=e))}
+} {}
+do_test randexpr-2.701 {
+  db eval {SELECT coalesce((select f from t1 where (case t1.a*t1.b*c when t1.d*coalesce((select max(coalesce((select 19 from t1 where t1.b in (select max(~case  -e when c+coalesce((select max(e) from t1 where (t1.d) not between c and t1.f),17) then c else 13 end) from t1 union select count(distinct a) from t1)),t1.f)) from t1 where f>t1.d),c) then 19 else 17 end between t1.b and t1.f and t1.d not in (c,e,(17)))),11) FROM t1 WHERE NOT ((((select min(t1.f) from t1)<=e)))}
+} {11}
+do_test randexpr-2.702 {
+  db eval {SELECT case t1.a when e*t1.e then case when exists(select 1 from t1 where (coalesce((select max(17) from t1 where (not (case when not a>=13*c then t1.f else (11)*t1.b end between 11 and t1.f or t1.c>(t1.c)))),t1.b*~t1.c)*b*d>=13)) then (abs(17)/abs(e)) else b end else t1.f end | t1.c+t1.f FROM t1 WHERE coalesce((select max(11) from t1 where c-d not between ~case when (select +~count(distinct t1.f)*cast(avg(t1.e) AS integer) from t1)+19 not in (t1.e,t1.f,t1.a) then t1.a when a in (e,t1.d,d) then t1.b else t1.e end and t1.b and c>=e or (t1.d<>b) and not exists(select 1 from t1 where (t1.f between 13 and a))),t1.a)-e<=t1.e}
+} {988}
+do_test randexpr-2.703 {
+  db eval {SELECT case t1.a when e*t1.e then case when exists(select 1 from t1 where (coalesce((select max(17) from t1 where (not (case when not a>=13*c then t1.f else (11)*t1.b end between 11 and t1.f or t1.c>(t1.c)))),t1.b*~t1.c)*b*d>=13)) then (abs(17)/abs(e)) else b end else t1.f end | t1.c+t1.f FROM t1 WHERE NOT (coalesce((select max(11) from t1 where c-d not between ~case when (select +~count(distinct t1.f)*cast(avg(t1.e) AS integer) from t1)+19 not in (t1.e,t1.f,t1.a) then t1.a when a in (e,t1.d,d) then t1.b else t1.e end and t1.b and c>=e or (t1.d<>b) and not exists(select 1 from t1 where (t1.f between 13 and a))),t1.a)-e<=t1.e)}
+} {}
+do_test randexpr-2.704 {
+  db eval {SELECT case t1.a when e*t1.e then case when exists(select 1 from t1 where (coalesce((select max(17) from t1 where (not (case when not a>=13*c then t1.f else (11)*t1.b end between 11 and t1.f or t1.c>(t1.c)))),t1.b*~t1.c)*b*d>=13)) then (abs(17)/abs(e)) else b end else t1.f end & t1.c+t1.f FROM t1 WHERE coalesce((select max(11) from t1 where c-d not between ~case when (select +~count(distinct t1.f)*cast(avg(t1.e) AS integer) from t1)+19 not in (t1.e,t1.f,t1.a) then t1.a when a in (e,t1.d,d) then t1.b else t1.e end and t1.b and c>=e or (t1.d<>b) and not exists(select 1 from t1 where (t1.f between 13 and a))),t1.a)-e<=t1.e}
+} {512}
+do_test randexpr-2.705 {
+  db eval {SELECT coalesce((select max(t1.e+(t1.b)) from t1 where 17<=t1.d-(select ~+cast(avg(b) AS integer) | case  -case cast(avg(t1.e) AS integer) when min((abs((a))/abs(t1.e))) then cast(avg(t1.c) AS integer)+count(*) else min(d) end when max(t1.e) then count(*) else ( -count(*)) end-min(t1.b)-count(distinct  -a)*count(*) from t1) | c+coalesce((select f from t1 where (19=t1.c-t1.b)),t1.f+17)),f) FROM t1 WHERE c not between (abs(t1.f)/abs(case when t1.f+e<=t1.c+t1.d then case when d in (select +count(distinct case when  -t1.a*19-t1.c not between 11 and c then t1.e when (19<>19) then t1.d else d end) from t1 union select cast(avg(e) AS integer) from t1) then t1.e when c in (select count(*) from t1 union select cast(avg(f) AS integer)* - - -cast(avg(t1.e) AS integer) from t1) then b else (t1.b) end when not (11>=11) then  -t1.e else b end)) and t1.f}
+} {}
+do_test randexpr-2.706 {
+  db eval {SELECT coalesce((select max(t1.e+(t1.b)) from t1 where 17<=t1.d-(select ~+cast(avg(b) AS integer) | case  -case cast(avg(t1.e) AS integer) when min((abs((a))/abs(t1.e))) then cast(avg(t1.c) AS integer)+count(*) else min(d) end when max(t1.e) then count(*) else ( -count(*)) end-min(t1.b)-count(distinct  -a)*count(*) from t1) | c+coalesce((select f from t1 where (19=t1.c-t1.b)),t1.f+17)),f) FROM t1 WHERE NOT (c not between (abs(t1.f)/abs(case when t1.f+e<=t1.c+t1.d then case when d in (select +count(distinct case when  -t1.a*19-t1.c not between 11 and c then t1.e when (19<>19) then t1.d else d end) from t1 union select cast(avg(e) AS integer) from t1) then t1.e when c in (select count(*) from t1 union select cast(avg(f) AS integer)* - - -cast(avg(t1.e) AS integer) from t1) then b else (t1.b) end when not (11>=11) then  -t1.e else b end)) and t1.f)}
+} {700}
+do_test randexpr-2.707 {
+  db eval {SELECT coalesce((select max(t1.e+(t1.b)) from t1 where 17<=t1.d-(select ~+cast(avg(b) AS integer) & case  -case cast(avg(t1.e) AS integer) when min((abs((a))/abs(t1.e))) then cast(avg(t1.c) AS integer)+count(*) else min(d) end when max(t1.e) then count(*) else ( -count(*)) end-min(t1.b)-count(distinct  -a)*count(*) from t1) & c+coalesce((select f from t1 where (19=t1.c-t1.b)),t1.f+17)),f) FROM t1 WHERE NOT (c not between (abs(t1.f)/abs(case when t1.f+e<=t1.c+t1.d then case when d in (select +count(distinct case when  -t1.a*19-t1.c not between 11 and c then t1.e when (19<>19) then t1.d else d end) from t1 union select cast(avg(e) AS integer) from t1) then t1.e when c in (select count(*) from t1 union select cast(avg(f) AS integer)* - - -cast(avg(t1.e) AS integer) from t1) then b else (t1.b) end when not (11>=11) then  -t1.e else b end)) and t1.f)}
+} {700}
+do_test randexpr-2.708 {
+  db eval {SELECT 17-(abs(case when t1.e<+(select count(distinct  -f) from t1)+t1.b then +case when t1.b not in (coalesce((select max(coalesce((select case when 17<e then 13 else t1.e end+t1.b from t1 where not (t1.f) between d and ((t1.d))),t1.f)) from t1 where t1.f>=a and 13 not in (b,t1.f,d)),b),t1.d, -13) then (e) else (13) end-19 when not exists(select 1 from t1 where 19<>f) then c else t1.e end | t1.d)/abs((13)))*f FROM t1 WHERE coalesce((select f from t1 where coalesce((select ~d*19-d*~case c when case a when t1.e*19 then (select  - -( -max(t1.f))*cast(avg(t1.c) AS integer) from t1) else 13 end*13-11 then  -11 else t1.f end | t1.e | t1.f*19 from t1 where t1.f>t1.a),b)*b not in (17,17,t1.e)),t1.a)-b*d>=11}
+} {}
+do_test randexpr-2.709 {
+  db eval {SELECT 17-(abs(case when t1.e<+(select count(distinct  -f) from t1)+t1.b then +case when t1.b not in (coalesce((select max(coalesce((select case when 17<e then 13 else t1.e end+t1.b from t1 where not (t1.f) between d and ((t1.d))),t1.f)) from t1 where t1.f>=a and 13 not in (b,t1.f,d)),b),t1.d, -13) then (e) else (13) end-19 when not exists(select 1 from t1 where 19<>f) then c else t1.e end | t1.d)/abs((13)))*f FROM t1 WHERE NOT (coalesce((select f from t1 where coalesce((select ~d*19-d*~case c when case a when t1.e*19 then (select  - -( -max(t1.f))*cast(avg(t1.c) AS integer) from t1) else 13 end*13-11 then  -11 else t1.f end | t1.e | t1.f*19 from t1 where t1.f>t1.a),b)*b not in (17,17,t1.e)),t1.a)-b*d>=11)}
+} {-22783}
+do_test randexpr-2.710 {
+  db eval {SELECT 17-(abs(case when t1.e<+(select count(distinct  -f) from t1)+t1.b then +case when t1.b not in (coalesce((select max(coalesce((select case when 17<e then 13 else t1.e end+t1.b from t1 where not (t1.f) between d and ((t1.d))),t1.f)) from t1 where t1.f>=a and 13 not in (b,t1.f,d)),b),t1.d, -13) then (e) else (13) end-19 when not exists(select 1 from t1 where 19<>f) then c else t1.e end & t1.d)/abs((13)))*f FROM t1 WHERE NOT (coalesce((select f from t1 where coalesce((select ~d*19-d*~case c when case a when t1.e*19 then (select  - -( -max(t1.f))*cast(avg(t1.c) AS integer) from t1) else 13 end*13-11 then  -11 else t1.f end | t1.e | t1.f*19 from t1 where t1.f>t1.a),b)*b not in (17,17,t1.e)),t1.a)-b*d>=11)}
+} {-17983}
+do_test randexpr-2.711 {
+  db eval {SELECT (select cast(avg(case when (e=case when e>d and case coalesce((select ((t1.b)) from t1 where 17<=t1.c),a) when t1.b then f else d end*b>t1.d then (t1.a) else 11 end or 17 not in (19,f,d) or not not exists(select 1 from t1 where  - -e>=13)) and 17 in ( -t1.b,c,t1.f) then t1.c when t1.c not between t1.f and 17 then t1.c else d end) AS integer) from t1)+b+a FROM t1 WHERE (((coalesce((select coalesce((select max(19) from t1 where d between ~t1.a and 11),c+d-coalesce((select e from t1 where (abs(b)/abs(coalesce((select 13 from t1 where case when (17) not in (19,t1.c,t1.b) or 17 not in (t1.b,t1.f,t1.e) then 11 else 19 end<>t1.c),11)*17))=t1.b),d)) from t1 where d not in (b,b,d)),t1.a) not between b and b) and d>=t1.d) and t1.d in (13,c,t1.b))}
+} {}
+do_test randexpr-2.712 {
+  db eval {SELECT (select cast(avg(case when (e=case when e>d and case coalesce((select ((t1.b)) from t1 where 17<=t1.c),a) when t1.b then f else d end*b>t1.d then (t1.a) else 11 end or 17 not in (19,f,d) or not not exists(select 1 from t1 where  - -e>=13)) and 17 in ( -t1.b,c,t1.f) then t1.c when t1.c not between t1.f and 17 then t1.c else d end) AS integer) from t1)+b+a FROM t1 WHERE NOT ((((coalesce((select coalesce((select max(19) from t1 where d between ~t1.a and 11),c+d-coalesce((select e from t1 where (abs(b)/abs(coalesce((select 13 from t1 where case when (17) not in (19,t1.c,t1.b) or 17 not in (t1.b,t1.f,t1.e) then 11 else 19 end<>t1.c),11)*17))=t1.b),d)) from t1 where d not in (b,b,d)),t1.a) not between b and b) and d>=t1.d) and t1.d in (13,c,t1.b)))}
+} {600}
+do_test randexpr-2.713 {
+  db eval {SELECT (abs((select +abs(+max(b) | abs(~~count(distinct  -19))) from t1))/abs(coalesce((select max(19*11*d) from t1 where (t1.e<=t1.e)),t1.f)))+case e when (t1.e) then d else c*13 | 11 end FROM t1 WHERE t1.d>=(case when (select count(*) from t1)*t1.c*t1.e+e<>t1.e*13 | f+(select (min(13+t1.b) | ~+~count(*)) from t1)*e*coalesce((select max(19+t1.a) from t1 where t1.e in (select +(count(distinct b))+count(*) from t1 union select ( -min(17)) from t1)),t1.a)-t1.d* -t1.e then e else  -a end)}
+} {}
+do_test randexpr-2.714 {
+  db eval {SELECT (abs((select +abs(+max(b) | abs(~~count(distinct  -19))) from t1))/abs(coalesce((select max(19*11*d) from t1 where (t1.e<=t1.e)),t1.f)))+case e when (t1.e) then d else c*13 | 11 end FROM t1 WHERE NOT (t1.d>=(case when (select count(*) from t1)*t1.c*t1.e+e<>t1.e*13 | f+(select (min(13+t1.b) | ~+~count(*)) from t1)*e*coalesce((select max(19+t1.a) from t1 where t1.e in (select +(count(distinct b))+count(*) from t1 union select ( -min(17)) from t1)),t1.a)-t1.d* -t1.e then e else  -a end))}
+} {400}
+do_test randexpr-2.715 {
+  db eval {SELECT (abs((select +abs(+max(b) & abs(~~count(distinct  -19))) from t1))/abs(coalesce((select max(19*11*d) from t1 where (t1.e<=t1.e)),t1.f)))+case e when (t1.e) then d else c*13 & 11 end FROM t1 WHERE NOT (t1.d>=(case when (select count(*) from t1)*t1.c*t1.e+e<>t1.e*13 | f+(select (min(13+t1.b) | ~+~count(*)) from t1)*e*coalesce((select max(19+t1.a) from t1 where t1.e in (select +(count(distinct b))+count(*) from t1 union select ( -min(17)) from t1)),t1.a)-t1.d* -t1.e then e else  -a end))}
+} {400}
+do_test randexpr-2.716 {
+  db eval {SELECT  -17+c-(abs(t1.a)/abs(t1.c))-case when t1.a<>c then case when exists(select 1 from t1 where 11 not between + -d and d and 13 not between 13 and 17 or not  -f<=19 or (t1.a)<a or t1.a>(11)) and 11<t1.b then t1.e else coalesce((select case when t1.f not in (c,t1.c,t1.e) then (select +count(*) from t1) when  -t1.f>=t1.f then b else a end from t1 where t1.e in (e,t1.c,b)),11) end else  -17 end FROM t1 WHERE not exists(select 1 from t1 where t1.a>=coalesce((select t1.f from t1 where + -19*t1.c<~+t1.a*13),a))}
+} {-217}
+do_test randexpr-2.717 {
+  db eval {SELECT  -17+c-(abs(t1.a)/abs(t1.c))-case when t1.a<>c then case when exists(select 1 from t1 where 11 not between + -d and d and 13 not between 13 and 17 or not  -f<=19 or (t1.a)<a or t1.a>(11)) and 11<t1.b then t1.e else coalesce((select case when t1.f not in (c,t1.c,t1.e) then (select +count(*) from t1) when  -t1.f>=t1.f then b else a end from t1 where t1.e in (e,t1.c,b)),11) end else  -17 end FROM t1 WHERE NOT (not exists(select 1 from t1 where t1.a>=coalesce((select t1.f from t1 where + -19*t1.c<~+t1.a*13),a)))}
+} {}
+do_test randexpr-2.718 {
+  db eval {SELECT f*19+17*(select max(b)+count(*)- -~count(*)-min(case when (e<=b-t1.b) then case when t1.b>t1.a or f not in (c, -c,f) or f in (e,13,13) then t1.b else t1.b end else a end*a) from t1)+t1.f*(abs(case b | t1.c+t1.a when ((f)) then f else c end+b)/abs(17))-(c) FROM t1 WHERE t1.e>11}
+} {-138117}
+do_test randexpr-2.719 {
+  db eval {SELECT f*19+17*(select max(b)+count(*)- -~count(*)-min(case when (e<=b-t1.b) then case when t1.b>t1.a or f not in (c, -c,f) or f in (e,13,13) then t1.b else t1.b end else a end*a) from t1)+t1.f*(abs(case b | t1.c+t1.a when ((f)) then f else c end+b)/abs(17))-(c) FROM t1 WHERE NOT (t1.e>11)}
+} {}
+do_test randexpr-2.720 {
+  db eval {SELECT f*19+17*(select max(b)+count(*)- -~count(*)-min(case when (e<=b-t1.b) then case when t1.b>t1.a or f not in (c, -c,f) or f in (e,13,13) then t1.b else t1.b end else a end*a) from t1)+t1.f*(abs(case b & t1.c+t1.a when ((f)) then f else c end+b)/abs(17))-(c) FROM t1 WHERE t1.e>11}
+} {-138117}
+do_test randexpr-2.721 {
+  db eval {SELECT  -case when case when (case (abs(13)/abs(t1.e-13*t1.f)) when b- -13+t1.d then 11 else a end) not between t1.b and b then t1.c when d not between t1.e and t1.c or t1.f in (select 11 from t1 union select f from t1) and 17=d then 13 else t1.a end+11>=f then a when f>b then t1.d else 17 end-t1.e FROM t1 WHERE (case when not exists(select 1 from t1 where exists(select 1 from t1 where (abs(b*d-t1.e)/abs(t1.b))>c)) and t1.d in (13,t1.f,17) then e else ( - -t1.a)+11+c end*t1.b in (select (case  -+min(17) when +count(*) | min(t1.a) | cast(avg(11) AS integer) then cast(avg(11) AS integer) else cast(avg(a) AS integer) end)-cast(avg(t1.a) AS integer) from t1 union select (min(t1.e)) from t1) or not t1.c in ((f),t1.c,(t1.e)))}
+} {}
+do_test randexpr-2.722 {
+  db eval {SELECT  -case when case when (case (abs(13)/abs(t1.e-13*t1.f)) when b- -13+t1.d then 11 else a end) not between t1.b and b then t1.c when d not between t1.e and t1.c or t1.f in (select 11 from t1 union select f from t1) and 17=d then 13 else t1.a end+11>=f then a when f>b then t1.d else 17 end-t1.e FROM t1 WHERE NOT ((case when not exists(select 1 from t1 where exists(select 1 from t1 where (abs(b*d-t1.e)/abs(t1.b))>c)) and t1.d in (13,t1.f,17) then e else ( - -t1.a)+11+c end*t1.b in (select (case  -+min(17) when +count(*) | min(t1.a) | cast(avg(11) AS integer) then cast(avg(11) AS integer) else cast(avg(a) AS integer) end)-cast(avg(t1.a) AS integer) from t1 union select (min(t1.e)) from t1) or not t1.c in ((f),t1.c,(t1.e))))}
+} {-900}
+do_test randexpr-2.723 {
+  db eval {SELECT case t1.a when a then t1.c else  -case coalesce((select t1.e from t1 where (abs(case when not (a*case when f>=f*13-19 then t1.e else +t1.a end=t1.a) then (select min(a)+min(+19) from t1) else case when t1.a=(f) then c else c end+17 end)/abs(t1.e)) between 17 and 13),e) when 17 then 13 else t1.d end end FROM t1 WHERE 17 in (select case cast(avg(b+b) AS integer) when abs(abs(count(*))) then min(case t1.c+t1.b+t1.e+17+case case when t1.b<>17 and t1.e>=t1.b then b else  -t1.f end when 11 then 13 else f end*t1.f*b when 19 then  -11 else t1.d end- -t1.f) else min(t1.c) end from t1 union select abs(abs(count(distinct b)*max(t1.d))+count(distinct 13)-count(*)) from t1)}
+} {}
+do_test randexpr-2.724 {
+  db eval {SELECT case t1.a when a then t1.c else  -case coalesce((select t1.e from t1 where (abs(case when not (a*case when f>=f*13-19 then t1.e else +t1.a end=t1.a) then (select min(a)+min(+19) from t1) else case when t1.a=(f) then c else c end+17 end)/abs(t1.e)) between 17 and 13),e) when 17 then 13 else t1.d end end FROM t1 WHERE NOT (17 in (select case cast(avg(b+b) AS integer) when abs(abs(count(*))) then min(case t1.c+t1.b+t1.e+17+case case when t1.b<>17 and t1.e>=t1.b then b else  -t1.f end when 11 then 13 else f end*t1.f*b when 19 then  -11 else t1.d end- -t1.f) else min(t1.c) end from t1 union select abs(abs(count(distinct b)*max(t1.d))+count(distinct 13)-count(*)) from t1))}
+} {300}
+do_test randexpr-2.725 {
+  db eval {SELECT case when coalesce((select e from t1 where coalesce((select coalesce((select max( -coalesce((select max(case when exists(select 1 from t1 where not exists(select 1 from t1 where b in (select e+d from t1 union select t1.e from t1))) then t1.d else t1.f end) from t1 where exists(select 1 from t1 where f not in ((c),a,11))),e)) from t1 where t1.b=t1.f and e<d or d>t1.b),t1.b) from t1 where t1.a in (select a from t1 union select  -f from t1)),17)>=17),((b))) not in (t1.e,b,e) then 19 when not  -a<=f then t1.f else t1.b end FROM t1 WHERE 13=t1.d}
+} {}
+do_test randexpr-2.726 {
+  db eval {SELECT case when coalesce((select e from t1 where coalesce((select coalesce((select max( -coalesce((select max(case when exists(select 1 from t1 where not exists(select 1 from t1 where b in (select e+d from t1 union select t1.e from t1))) then t1.d else t1.f end) from t1 where exists(select 1 from t1 where f not in ((c),a,11))),e)) from t1 where t1.b=t1.f and e<d or d>t1.b),t1.b) from t1 where t1.a in (select a from t1 union select  -f from t1)),17)>=17),((b))) not in (t1.e,b,e) then 19 when not  -a<=f then t1.f else t1.b end FROM t1 WHERE NOT (13=t1.d)}
+} {200}
+do_test randexpr-2.727 {
+  db eval {SELECT 19*13+((abs(case when 17*d in ((abs((case (abs((abs((select abs(min(d))+cast(avg(19) AS integer) from t1) | t1.d | 11 | b)/abs(19)))/abs(b)) when 11 then a else e end))/abs(13)),t1.f,b) then t1.b when t1.c>=t1.d then (t1.c) else c end*d)/abs(f))) | t1.a-a-17 FROM t1 WHERE ( -t1.d+coalesce((select max(11) from t1 where t1.c between 13 and t1.d and case d when b then 13+ -~t1.a else +case when coalesce((select max((select +case (cast(avg(e) AS integer)) when count(distinct t1.a) then count(*) else min(( -d)) end from t1)-+a+d) from t1 where (e in (17,t1.e, -a))),b)<>f then a else 11 end end<(t1.e)),t1.d) in (select t1.a from t1 union select b from t1))}
+} {}
+do_test randexpr-2.728 {
+  db eval {SELECT 19*13+((abs(case when 17*d in ((abs((case (abs((abs((select abs(min(d))+cast(avg(19) AS integer) from t1) | t1.d | 11 | b)/abs(19)))/abs(b)) when 11 then a else e end))/abs(13)),t1.f,b) then t1.b when t1.c>=t1.d then (t1.c) else c end*d)/abs(f))) | t1.a-a-17 FROM t1 WHERE NOT (( -t1.d+coalesce((select max(11) from t1 where t1.c between 13 and t1.d and case d when b then 13+ -~t1.a else +case when coalesce((select max((select +case (cast(avg(e) AS integer)) when count(distinct t1.a) then count(*) else min(( -d)) end from t1)-+a+d) from t1 where (e in (17,t1.e, -a))),b)<>f then a else 11 end end<(t1.e)),t1.d) in (select t1.a from t1 union select b from t1)))}
+} {-1}
+do_test randexpr-2.729 {
+  db eval {SELECT 19*13+((abs(case when 17*d in ((abs((case (abs((abs((select abs(min(d))+cast(avg(19) AS integer) from t1) & t1.d & 11 & b)/abs(19)))/abs(b)) when 11 then a else e end))/abs(13)),t1.f,b) then t1.b when t1.c>=t1.d then (t1.c) else c end*d)/abs(f))) & t1.a-a-17 FROM t1 WHERE NOT (( -t1.d+coalesce((select max(11) from t1 where t1.c between 13 and t1.d and case d when b then 13+ -~t1.a else +case when coalesce((select max((select +case (cast(avg(e) AS integer)) when count(distinct t1.a) then count(*) else min(( -d)) end from t1)-+a+d) from t1 where (e in (17,t1.e, -a))),b)<>f then a else 11 end end<(t1.e)),t1.d) in (select t1.a from t1 union select b from t1)))}
+} {431}
+do_test randexpr-2.730 {
+  db eval {SELECT case when (19*b)+11*~f-coalesce((select max(11) from t1 where f<>case when case 17 when 11 then 17 else c end-11 in (t1.c,c,t1.e) and 19=t1.a or 17<=e or e<=19 then 19 | c when t1.b=t1.f then d else 19 end or t1.e not in (13,19,c)),b) |  -c not between  -e and  -a then (t1.c) else t1.d end FROM t1 WHERE c in (select case abs((count(*))) when  -max(t1.c) | abs(abs(+count(*)))-~case (case  -max(e) when max(11)- -count(*) then ((max(t1.e))) else count(*) end) when count(distinct t1.e) then cast(avg(f) AS integer) else cast(avg(t1.c) AS integer) end* -cast(avg(f) AS integer) then max(f) else (max(b)) end from t1 union select (max(13)) from t1) and not exists(select 1 from t1 where case when t1.e<=19-b then c else c end in (select c from t1 union select (select  -((count(distinct t1.d))) from t1)-t1.b from t1))}
+} {}
+do_test randexpr-2.731 {
+  db eval {SELECT case when (19*b)+11*~f-coalesce((select max(11) from t1 where f<>case when case 17 when 11 then 17 else c end-11 in (t1.c,c,t1.e) and 19=t1.a or 17<=e or e<=19 then 19 | c when t1.b=t1.f then d else 19 end or t1.e not in (13,19,c)),b) |  -c not between  -e and  -a then (t1.c) else t1.d end FROM t1 WHERE NOT (c in (select case abs((count(*))) when  -max(t1.c) | abs(abs(+count(*)))-~case (case  -max(e) when max(11)- -count(*) then ((max(t1.e))) else count(*) end) when count(distinct t1.e) then cast(avg(f) AS integer) else cast(avg(t1.c) AS integer) end* -cast(avg(f) AS integer) then max(f) else (max(b)) end from t1 union select (max(13)) from t1) and not exists(select 1 from t1 where case when t1.e<=19-b then c else c end in (select c from t1 union select (select  -((count(distinct t1.d))) from t1)-t1.b from t1)))}
+} {400}
+do_test randexpr-2.732 {
+  db eval {SELECT case when (19*b)+11*~f-coalesce((select max(11) from t1 where f<>case when case 17 when 11 then 17 else c end-11 in (t1.c,c,t1.e) and 19=t1.a or 17<=e or e<=19 then 19 & c when t1.b=t1.f then d else 19 end or t1.e not in (13,19,c)),b) &  -c not between  -e and  -a then (t1.c) else t1.d end FROM t1 WHERE NOT (c in (select case abs((count(*))) when  -max(t1.c) | abs(abs(+count(*)))-~case (case  -max(e) when max(11)- -count(*) then ((max(t1.e))) else count(*) end) when count(distinct t1.e) then cast(avg(f) AS integer) else cast(avg(t1.c) AS integer) end* -cast(avg(f) AS integer) then max(f) else (max(b)) end from t1 union select (max(13)) from t1) and not exists(select 1 from t1 where case when t1.e<=19-b then c else c end in (select c from t1 union select (select  -((count(distinct t1.d))) from t1)-t1.b from t1)))}
+} {300}
+do_test randexpr-2.733 {
+  db eval {SELECT case when t1.e not between e and 13 then (select count(*) from t1) when f>=case when c in (select a from t1 union select t1.e+coalesce((select 11 from t1 where (select count(distinct t1.b) from t1)+17 not in (b,t1.c,t1.f-(select ~count(distinct 17) from t1)+ -e)),13) from t1) or 19 between d and t1.f then (select min(19) from t1) when not (e not between c and a) then d else a end then d else (t1.c) end FROM t1 WHERE f not in (17,f+d | f+case when  -f=19 then (select max((select +abs(abs(max(((select ((max(t1.d))+count(distinct t1.e))-min(t1.a) from t1))+t1.e)-abs(count(distinct  -t1.b)-count(distinct 11)))*min(a)-count(*))-min(t1.a) from t1)) from t1) else t1.f end,c-a) and c<>11}
+} {1}
+do_test randexpr-2.734 {
+  db eval {SELECT case when t1.e not between e and 13 then (select count(*) from t1) when f>=case when c in (select a from t1 union select t1.e+coalesce((select 11 from t1 where (select count(distinct t1.b) from t1)+17 not in (b,t1.c,t1.f-(select ~count(distinct 17) from t1)+ -e)),13) from t1) or 19 between d and t1.f then (select min(19) from t1) when not (e not between c and a) then d else a end then d else (t1.c) end FROM t1 WHERE NOT (f not in (17,f+d | f+case when  -f=19 then (select max((select +abs(abs(max(((select ((max(t1.d))+count(distinct t1.e))-min(t1.a) from t1))+t1.e)-abs(count(distinct  -t1.b)-count(distinct 11)))*min(a)-count(*))-min(t1.a) from t1)) from t1) else t1.f end,c-a) and c<>11)}
+} {}
+do_test randexpr-2.735 {
+  db eval {SELECT case c-+case when t1.f in (t1.a,t1.e,19) then t1.b else case when a<>t1.a then case ~(t1.d) when t1.e then (select max(t1.f) from t1)-(select +(cast(avg(b) AS integer))*cast(avg(t1.a) AS integer)+max(d)*count(*)+count(*) from t1)* -t1.f else 13 end else t1.a+a end*t1.f-t1.b*(e) end when d then d else 17 end FROM t1 WHERE case when not exists(select 1 from t1 where not exists(select 1 from t1 where c in (select t1.a*t1.b from t1 union select t1.d | e from t1))) and (coalesce((select (abs(11)/abs(13-17*c)) from t1 where b in (select 13 from t1 union select (t1.c) from t1)),11) not in (17,b,b)) then (abs(+t1.f)/abs(c)) when exists(select 1 from t1 where not exists(select 1 from t1 where not (not exists(select 1 from t1 where e<=19 and e>19)))) then c else t1.e end not between t1.f and c}
+} {17}
+do_test randexpr-2.736 {
+  db eval {SELECT case c-+case when t1.f in (t1.a,t1.e,19) then t1.b else case when a<>t1.a then case ~(t1.d) when t1.e then (select max(t1.f) from t1)-(select +(cast(avg(b) AS integer))*cast(avg(t1.a) AS integer)+max(d)*count(*)+count(*) from t1)* -t1.f else 13 end else t1.a+a end*t1.f-t1.b*(e) end when d then d else 17 end FROM t1 WHERE NOT (case when not exists(select 1 from t1 where not exists(select 1 from t1 where c in (select t1.a*t1.b from t1 union select t1.d | e from t1))) and (coalesce((select (abs(11)/abs(13-17*c)) from t1 where b in (select 13 from t1 union select (t1.c) from t1)),11) not in (17,b,b)) then (abs(+t1.f)/abs(c)) when exists(select 1 from t1 where not exists(select 1 from t1 where not (not exists(select 1 from t1 where e<=19 and e>19)))) then c else t1.e end not between t1.f and c)}
+} {}
+do_test randexpr-2.737 {
+  db eval {SELECT 11+a+(select count(distinct coalesce((select  -coalesce((select case when (t1.a<=a) then (case when 17=t1.c then (select count(distinct e)-min(11) from t1) else f end) when f>=t1.f and t1.c not in (t1.e,a,17) and 17=t1.f then  -t1.d else 11 end*t1.d from t1 where t1.a<=t1.b),t1.b) from t1 where t1.e not between d and 13),t1.a)) | +max(t1.c) from t1) FROM t1 WHERE 11 in (t1.a,+t1.c* -t1.f | t1.d*+t1.c-b-(abs((select min(case when 19 in (select abs(count(distinct c)) from t1 union select ~ -min(t1.c) from t1) then case (11) when a then t1.c else t1.d end when (f)<=t1.b then t1.b else t1.a end)+min((t1.d)) | min(b) from t1))/abs(t1.e))+case 13 when t1.b then b else  - -t1.b end*b-11, -f)}
+} {}
+do_test randexpr-2.738 {
+  db eval {SELECT 11+a+(select count(distinct coalesce((select  -coalesce((select case when (t1.a<=a) then (case when 17=t1.c then (select count(distinct e)-min(11) from t1) else f end) when f>=t1.f and t1.c not in (t1.e,a,17) and 17=t1.f then  -t1.d else 11 end*t1.d from t1 where t1.a<=t1.b),t1.b) from t1 where t1.e not between d and 13),t1.a)) | +max(t1.c) from t1) FROM t1 WHERE NOT (11 in (t1.a,+t1.c* -t1.f | t1.d*+t1.c-b-(abs((select min(case when 19 in (select abs(count(distinct c)) from t1 union select ~ -min(t1.c) from t1) then case (11) when a then t1.c else t1.d end when (f)<=t1.b then t1.b else t1.a end)+min((t1.d)) | min(b) from t1))/abs(t1.e))+case 13 when t1.b then b else  - -t1.b end*b-11, -f))}
+} {412}
+do_test randexpr-2.739 {
+  db eval {SELECT 11+a+(select count(distinct coalesce((select  -coalesce((select case when (t1.a<=a) then (case when 17=t1.c then (select count(distinct e)-min(11) from t1) else f end) when f>=t1.f and t1.c not in (t1.e,a,17) and 17=t1.f then  -t1.d else 11 end*t1.d from t1 where t1.a<=t1.b),t1.b) from t1 where t1.e not between d and 13),t1.a)) & +max(t1.c) from t1) FROM t1 WHERE NOT (11 in (t1.a,+t1.c* -t1.f | t1.d*+t1.c-b-(abs((select min(case when 19 in (select abs(count(distinct c)) from t1 union select ~ -min(t1.c) from t1) then case (11) when a then t1.c else t1.d end when (f)<=t1.b then t1.b else t1.a end)+min((t1.d)) | min(b) from t1))/abs(t1.e))+case 13 when t1.b then b else  - -t1.b end*b-11, -f))}
+} {111}
+do_test randexpr-2.740 {
+  db eval {SELECT  -c-case 11 when ++e*(select cast(avg( -t1.f+case when case when 19=t1.e+((select min(17 | a) from t1)) then t1.f else t1.b end>=t1.e then t1.e when (((exists(select 1 from t1 where b in (select case  -count(*) when (count(distinct d)) then count(*) else (cast(avg(t1.b) AS integer)) end from t1 union select  -count(*) from t1))))) then t1.a else a end+t1.a*d) AS integer) from t1) then 13 else f end*e FROM t1 WHERE (select cast(avg(case when +d>=e+17 and (not case when 13>=(select case  -count(distinct t1.e) when cast(avg(c) AS integer) then cast(avg(19) AS integer) else count(distinct t1.a) end from t1) then t1.e else t1.f end in (select t1.b from t1 union select 13 from t1)) or t1.a<=e and e in (select count(*) from t1 union select  -count(*) from t1) and b>=t1.b or t1.e between c and 19 then c when f between 19 and b then coalesce((select max(t1.d) from t1 where a<>t1.b),13)* -(d) else t1.e end) AS integer) from t1)<=19}
+} {}
+do_test randexpr-2.741 {
+  db eval {SELECT  -c-case 11 when ++e*(select cast(avg( -t1.f+case when case when 19=t1.e+((select min(17 | a) from t1)) then t1.f else t1.b end>=t1.e then t1.e when (((exists(select 1 from t1 where b in (select case  -count(*) when (count(distinct d)) then count(*) else (cast(avg(t1.b) AS integer)) end from t1 union select  -count(*) from t1))))) then t1.a else a end+t1.a*d) AS integer) from t1) then 13 else f end*e FROM t1 WHERE NOT ((select cast(avg(case when +d>=e+17 and (not case when 13>=(select case  -count(distinct t1.e) when cast(avg(c) AS integer) then cast(avg(19) AS integer) else count(distinct t1.a) end from t1) then t1.e else t1.f end in (select t1.b from t1 union select 13 from t1)) or t1.a<=e and e in (select count(*) from t1 union select  -count(*) from t1) and b>=t1.b or t1.e between c and 19 then c when f between 19 and b then coalesce((select max(t1.d) from t1 where a<>t1.b),13)* -(d) else t1.e end) AS integer) from t1)<=19)}
+} {-300300}
+do_test randexpr-2.742 {
+  db eval {SELECT  -c-case 11 when ++e*(select cast(avg( -t1.f+case when case when 19=t1.e+((select min(17 & a) from t1)) then t1.f else t1.b end>=t1.e then t1.e when (((exists(select 1 from t1 where b in (select case  -count(*) when (count(distinct d)) then count(*) else (cast(avg(t1.b) AS integer)) end from t1 union select  -count(*) from t1))))) then t1.a else a end+t1.a*d) AS integer) from t1) then 13 else f end*e FROM t1 WHERE NOT ((select cast(avg(case when +d>=e+17 and (not case when 13>=(select case  -count(distinct t1.e) when cast(avg(c) AS integer) then cast(avg(19) AS integer) else count(distinct t1.a) end from t1) then t1.e else t1.f end in (select t1.b from t1 union select 13 from t1)) or t1.a<=e and e in (select count(*) from t1 union select  -count(*) from t1) and b>=t1.b or t1.e between c and 19 then c when f between 19 and b then coalesce((select max(t1.d) from t1 where a<>t1.b),13)* -(d) else t1.e end) AS integer) from t1)<=19)}
+} {-300300}
+do_test randexpr-2.743 {
+  db eval {SELECT case d when 11 then t1.d-(abs(t1.d)/abs(19))+coalesce((select d*d from t1 where (select cast(avg(case when f | c+case when e in (select min(coalesce((select t1.f from t1 where 11 not between t1.b and 19),t1.f)) from t1 union select (max(t1.b)) from t1) then 19 when t1.b=b or t1.c>=c then 13 else e end*19 in (select 17 from t1 union select 11 from t1) then  -c else t1.d end) AS integer) from t1)<13),d) else 11 end FROM t1 WHERE (b>~t1.c-+(abs(case when 11>(c) and t1.a>13 then t1.d else (b) end)/abs(t1.d))-13 or t1.f between t1.a and 19 and 11 in (select (min(t1.e))-~( -+count(*)) from t1 union select count(distinct t1.c) from t1)) and 17 not in (f,(t1.b),t1.c) and (t1.f<>t1.e) or d in (f,t1.a,t1.d) or (d)<=t1.e}
+} {11}
+do_test randexpr-2.744 {
+  db eval {SELECT case d when 11 then t1.d-(abs(t1.d)/abs(19))+coalesce((select d*d from t1 where (select cast(avg(case when f | c+case when e in (select min(coalesce((select t1.f from t1 where 11 not between t1.b and 19),t1.f)) from t1 union select (max(t1.b)) from t1) then 19 when t1.b=b or t1.c>=c then 13 else e end*19 in (select 17 from t1 union select 11 from t1) then  -c else t1.d end) AS integer) from t1)<13),d) else 11 end FROM t1 WHERE NOT ((b>~t1.c-+(abs(case when 11>(c) and t1.a>13 then t1.d else (b) end)/abs(t1.d))-13 or t1.f between t1.a and 19 and 11 in (select (min(t1.e))-~( -+count(*)) from t1 union select count(distinct t1.c) from t1)) and 17 not in (f,(t1.b),t1.c) and (t1.f<>t1.e) or d in (f,t1.a,t1.d) or (d)<=t1.e)}
+} {}
+do_test randexpr-2.745 {
+  db eval {SELECT case d when 11 then t1.d-(abs(t1.d)/abs(19))+coalesce((select d*d from t1 where (select cast(avg(case when f & c+case when e in (select min(coalesce((select t1.f from t1 where 11 not between t1.b and 19),t1.f)) from t1 union select (max(t1.b)) from t1) then 19 when t1.b=b or t1.c>=c then 13 else e end*19 in (select 17 from t1 union select 11 from t1) then  -c else t1.d end) AS integer) from t1)<13),d) else 11 end FROM t1 WHERE (b>~t1.c-+(abs(case when 11>(c) and t1.a>13 then t1.d else (b) end)/abs(t1.d))-13 or t1.f between t1.a and 19 and 11 in (select (min(t1.e))-~( -+count(*)) from t1 union select count(distinct t1.c) from t1)) and 17 not in (f,(t1.b),t1.c) and (t1.f<>t1.e) or d in (f,t1.a,t1.d) or (d)<=t1.e}
+} {11}
+do_test randexpr-2.746 {
+  db eval {SELECT (select  -~count(distinct ~+case when c<>coalesce((select max(case when ~13 in (t1.a,t1.f,13+t1.d+(19)*t1.d*f-e) then 13 else a end) from t1 where  -t1.d<>19),(a))*d+a then t1.d when exists(select 1 from t1 where b=d) then t1.f else 17 end*11) | count(*)-max(t1.e) from t1) FROM t1 WHERE 19 in (select max(b) from t1 union select count(*) from t1) and +t1.b+c*d+coalesce((select max(17) from t1 where case when t1.a=coalesce((select max((select (min(t1.f)) from t1)) from t1 where not case when not exists(select 1 from t1 where ( -t1.b)=13 and d in (f,c,e)) or 17 between 17 and e then t1.e-t1.c else 11 end>=d),19)-11 then 11 else 17 end<=t1.a),t1.f)+t1.f-f<>17}
+} {}
+do_test randexpr-2.747 {
+  db eval {SELECT (select  -~count(distinct ~+case when c<>coalesce((select max(case when ~13 in (t1.a,t1.f,13+t1.d+(19)*t1.d*f-e) then 13 else a end) from t1 where  -t1.d<>19),(a))*d+a then t1.d when exists(select 1 from t1 where b=d) then t1.f else 17 end*11) | count(*)-max(t1.e) from t1) FROM t1 WHERE NOT (19 in (select max(b) from t1 union select count(*) from t1) and +t1.b+c*d+coalesce((select max(17) from t1 where case when t1.a=coalesce((select max((select (min(t1.f)) from t1)) from t1 where not case when not exists(select 1 from t1 where ( -t1.b)=13 and d in (f,c,e)) or 17 between 17 and e then t1.e-t1.c else 11 end>=d),19)-11 then 11 else 17 end<=t1.a),t1.f)+t1.f-f<>17)}
+} {-497}
+do_test randexpr-2.748 {
+  db eval {SELECT (select  -~count(distinct ~+case when c<>coalesce((select max(case when ~13 in (t1.a,t1.f,13+t1.d+(19)*t1.d*f-e) then 13 else a end) from t1 where  -t1.d<>19),(a))*d+a then t1.d when exists(select 1 from t1 where b=d) then t1.f else 17 end*11) & count(*)-max(t1.e) from t1) FROM t1 WHERE NOT (19 in (select max(b) from t1 union select count(*) from t1) and +t1.b+c*d+coalesce((select max(17) from t1 where case when t1.a=coalesce((select max((select (min(t1.f)) from t1)) from t1 where not case when not exists(select 1 from t1 where ( -t1.b)=13 and d in (f,c,e)) or 17 between 17 and e then t1.e-t1.c else 11 end>=d),19)-11 then 11 else 17 end<=t1.a),t1.f)+t1.f-f<>17)}
+} {0}
+do_test randexpr-2.749 {
+  db eval {SELECT coalesce((select max(a) from t1 where exists(select 1 from t1 where (abs(t1.f)/abs(case when (t1.a+case when exists(select 1 from t1 where t1.e>=(abs(coalesce((select f from t1 where (((b>=t1.d) or t1.e= -a) or 17=a)),case when t1.d between t1.a and b then t1.b when e in (e,t1.a,t1.e) then 13 else (f) end))/abs(13))) then 11 else t1.d end* - -t1.f)<=c then d else t1.d end))-t1.c-19>=t1.a)),((t1.b))) FROM t1 WHERE case when t1.f in (e,19,(abs(t1.e)/abs(t1.e))) and (17 between 11+(select +max(case case when f=(t1.b) then e when t1.e in (13,19,c) then c else  -t1.b end- -c when (13) then d else t1.f end) from t1) and 17 and (19 in (b,t1.d,11))) and f not between 19 and b then e when 13 not between (t1.e) and t1.a then 11 else 11 end not between d and t1.a}
+} {200}
+do_test randexpr-2.750 {
+  db eval {SELECT coalesce((select max(a) from t1 where exists(select 1 from t1 where (abs(t1.f)/abs(case when (t1.a+case when exists(select 1 from t1 where t1.e>=(abs(coalesce((select f from t1 where (((b>=t1.d) or t1.e= -a) or 17=a)),case when t1.d between t1.a and b then t1.b when e in (e,t1.a,t1.e) then 13 else (f) end))/abs(13))) then 11 else t1.d end* - -t1.f)<=c then d else t1.d end))-t1.c-19>=t1.a)),((t1.b))) FROM t1 WHERE NOT (case when t1.f in (e,19,(abs(t1.e)/abs(t1.e))) and (17 between 11+(select +max(case case when f=(t1.b) then e when t1.e in (13,19,c) then c else  -t1.b end- -c when (13) then d else t1.f end) from t1) and 17 and (19 in (b,t1.d,11))) and f not between 19 and b then e when 13 not between (t1.e) and t1.a then 11 else 11 end not between d and t1.a)}
+} {}
+do_test randexpr-2.751 {
+  db eval {SELECT 11-17 | case when 11<t1.c then case when ~f<=(abs(t1.e)/abs(19))-t1.f then 17 when 11>=c or 11 in (select cast(avg(t1.c) AS integer)-case cast(avg(t1.b) AS integer) when count(distinct e) then min(t1.a) else  -count(distinct 19) end from t1 union select count(*) from t1) or e in (t1.e,t1.b,b) or 13=t1.f and e>=t1.a then e else e end when ( -19<=e) then 13 else e end+a FROM t1 WHERE t1.c*d not in ( -t1.a,coalesce((select d from t1 where coalesce((select c from t1 where ((d<=11))),(17)+(abs(coalesce((select (select ( -+count(*))+count(distinct d) from t1) from t1 where (coalesce((select b from t1 where ~a<>13),(t1.c))) not between d and t1.d),17))/abs(d)))*f<a and t1.b<>17),e),t1.b)}
+} {-1}
+do_test randexpr-2.752 {
+  db eval {SELECT 11-17 | case when 11<t1.c then case when ~f<=(abs(t1.e)/abs(19))-t1.f then 17 when 11>=c or 11 in (select cast(avg(t1.c) AS integer)-case cast(avg(t1.b) AS integer) when count(distinct e) then min(t1.a) else  -count(distinct 19) end from t1 union select count(*) from t1) or e in (t1.e,t1.b,b) or 13=t1.f and e>=t1.a then e else e end when ( -19<=e) then 13 else e end+a FROM t1 WHERE NOT (t1.c*d not in ( -t1.a,coalesce((select d from t1 where coalesce((select c from t1 where ((d<=11))),(17)+(abs(coalesce((select (select ( -+count(*))+count(distinct d) from t1) from t1 where (coalesce((select b from t1 where ~a<>13),(t1.c))) not between d and t1.d),17))/abs(d)))*f<a and t1.b<>17),e),t1.b))}
+} {}
+do_test randexpr-2.753 {
+  db eval {SELECT 11-17 & case when 11<t1.c then case when ~f<=(abs(t1.e)/abs(19))-t1.f then 17 when 11>=c or 11 in (select cast(avg(t1.c) AS integer)-case cast(avg(t1.b) AS integer) when count(distinct e) then min(t1.a) else  -count(distinct 19) end from t1 union select count(*) from t1) or e in (t1.e,t1.b,b) or 13=t1.f and e>=t1.a then e else e end when ( -19<=e) then 13 else e end+a FROM t1 WHERE t1.c*d not in ( -t1.a,coalesce((select d from t1 where coalesce((select c from t1 where ((d<=11))),(17)+(abs(coalesce((select (select ( -+count(*))+count(distinct d) from t1) from t1 where (coalesce((select b from t1 where ~a<>13),(t1.c))) not between d and t1.d),17))/abs(d)))*f<a and t1.b<>17),e),t1.b)}
+} {112}
+do_test randexpr-2.754 {
+  db eval {SELECT (abs(f-case when +(t1.f)-c<case when 17=case when not exists(select 1 from t1 where (19)=17 or c<>13 and  -f<t1.a) then (select max((select min(t1.b) | count(distinct 19) from t1)) from t1) when e not between t1.b and e then t1.e else 17 end+t1.e or t1.c in (t1.f,f,t1.d) then (11)+f when t1.c=11 and t1.e not in (a,(t1.e),a) then a else t1.f end-d then 11 else (t1.e) end-t1.b)/abs(11))*11 FROM t1 WHERE (case when (f not in (~(t1.f*case when case when case 11 when t1.e then t1.c else a end | 19 in (select t1.a from t1 union select t1.e from t1) then f when d>t1.c then 11 else  -11 end<>t1.c and t1.f not between (11) and (t1.f) then b else 11 end)*b+t1.f,a,t1.d)) then 11 else t1.d end=e) or e<(t1.f)}
+} {99}
+do_test randexpr-2.755 {
+  db eval {SELECT (abs(f-case when +(t1.f)-c<case when 17=case when not exists(select 1 from t1 where (19)=17 or c<>13 and  -f<t1.a) then (select max((select min(t1.b) | count(distinct 19) from t1)) from t1) when e not between t1.b and e then t1.e else 17 end+t1.e or t1.c in (t1.f,f,t1.d) then (11)+f when t1.c=11 and t1.e not in (a,(t1.e),a) then a else t1.f end-d then 11 else (t1.e) end-t1.b)/abs(11))*11 FROM t1 WHERE NOT ((case when (f not in (~(t1.f*case when case when case 11 when t1.e then t1.c else a end | 19 in (select t1.a from t1 union select t1.e from t1) then f when d>t1.c then 11 else  -11 end<>t1.c and t1.f not between (11) and (t1.f) then b else 11 end)*b+t1.f,a,t1.d)) then 11 else t1.d end=e) or e<(t1.f))}
+} {}
+do_test randexpr-2.756 {
+  db eval {SELECT (abs(f-case when +(t1.f)-c<case when 17=case when not exists(select 1 from t1 where (19)=17 or c<>13 and  -f<t1.a) then (select max((select min(t1.b) & count(distinct 19) from t1)) from t1) when e not between t1.b and e then t1.e else 17 end+t1.e or t1.c in (t1.f,f,t1.d) then (11)+f when t1.c=11 and t1.e not in (a,(t1.e),a) then a else t1.f end-d then 11 else (t1.e) end-t1.b)/abs(11))*11 FROM t1 WHERE (case when (f not in (~(t1.f*case when case when case 11 when t1.e then t1.c else a end | 19 in (select t1.a from t1 union select t1.e from t1) then f when d>t1.c then 11 else  -11 end<>t1.c and t1.f not between (11) and (t1.f) then b else 11 end)*b+t1.f,a,t1.d)) then 11 else t1.d end=e) or e<(t1.f)}
+} {99}
+do_test randexpr-2.757 {
+  db eval {SELECT +(select (max(case when not (((exists(select 1 from t1 where b not between t1.a and t1.d) or t1.a>=coalesce((select max(17) from t1 where  -t1.e between t1.e and a),f)-11) or 11<=t1.c)) then b when 19 between 19 and b then t1.f else +d+ -t1.a-t1.f-e end | f-t1.b+ -t1.b)+min(t1.b)) from t1)*t1.c FROM t1 WHERE b in (t1.b-b,coalesce((select max(e) from t1 where t1.d not between 11 and case when d>=+13 then case when t1.a between e and a then t1.c else (t1.f)+(t1.b) end else case (d)*e when b then f else a end end or t1.d in (select cast(avg(d) AS integer) from t1 union select +abs( -max(e))*max(19) | max(d) from t1)),11),t1.c)}
+} {}
+do_test randexpr-2.758 {
+  db eval {SELECT +(select (max(case when not (((exists(select 1 from t1 where b not between t1.a and t1.d) or t1.a>=coalesce((select max(17) from t1 where  -t1.e between t1.e and a),f)-11) or 11<=t1.c)) then b when 19 between 19 and b then t1.f else +d+ -t1.a-t1.f-e end | f-t1.b+ -t1.b)+min(t1.b)) from t1)*t1.c FROM t1 WHERE NOT (b in (t1.b-b,coalesce((select max(e) from t1 where t1.d not between 11 and case when d>=+13 then case when t1.a between e and a then t1.c else (t1.f)+(t1.b) end else case (d)*e when b then f else a end end or t1.d in (select cast(avg(d) AS integer) from t1 union select +abs( -max(e))*max(19) | max(d) from t1)),11),t1.c))}
+} {278400}
+do_test randexpr-2.759 {
+  db eval {SELECT +(select (max(case when not (((exists(select 1 from t1 where b not between t1.a and t1.d) or t1.a>=coalesce((select max(17) from t1 where  -t1.e between t1.e and a),f)-11) or 11<=t1.c)) then b when 19 between 19 and b then t1.f else +d+ -t1.a-t1.f-e end & f-t1.b+ -t1.b)+min(t1.b)) from t1)*t1.c FROM t1 WHERE NOT (b in (t1.b-b,coalesce((select max(e) from t1 where t1.d not between 11 and case when d>=+13 then case when t1.a between e and a then t1.c else (t1.f)+(t1.b) end else case (d)*e when b then f else a end end or t1.d in (select cast(avg(d) AS integer) from t1 union select +abs( -max(e))*max(19) | max(d) from t1)),11),t1.c))}
+} {81600}
+do_test randexpr-2.760 {
+  db eval {SELECT t1.e*t1.c*(select count(*)+abs(cast(avg(case t1.a when (select  -count(*)-(min(t1.a)) | +(abs(case max(a) when abs(min(17)) then +cast(avg(a) AS integer) | count(distinct d) else count(*) end)) from t1) then a else  -+b-coalesce((select max(f*19) from t1 where ~~c in (a,13,t1.a)),t1.b) end) AS integer)) from t1) FROM t1 WHERE 19-(abs(b)/abs(t1.b)) | case when t1.e in (select case (+cast(avg(t1.c+a) AS integer) | (cast(avg(t1.d) AS integer) |  -cast(avg( -d) AS integer)* -( -count(*))+min(17))) when min(13) then max( -11) else count(*) end from t1 union select min(17) from t1) or 13 in (case when t1.e between e and coalesce((select c from t1 where not exists(select 1 from t1 where (b)>=t1.e)),t1.b) then 19 else 11 end,17,f) then 11 else b end in (select c from t1 union select 19 from t1)}
+} {}
+do_test randexpr-2.761 {
+  db eval {SELECT t1.e*t1.c*(select count(*)+abs(cast(avg(case t1.a when (select  -count(*)-(min(t1.a)) | +(abs(case max(a) when abs(min(17)) then +cast(avg(a) AS integer) | count(distinct d) else count(*) end)) from t1) then a else  -+b-coalesce((select max(f*19) from t1 where ~~c in (a,13,t1.a)),t1.b) end) AS integer)) from t1) FROM t1 WHERE NOT (19-(abs(b)/abs(t1.b)) | case when t1.e in (select case (+cast(avg(t1.c+a) AS integer) | (cast(avg(t1.d) AS integer) |  -cast(avg( -d) AS integer)* -( -count(*))+min(17))) when min(13) then max( -11) else count(*) end from t1 union select min(17) from t1) or 13 in (case when t1.e between e and coalesce((select c from t1 where not exists(select 1 from t1 where (b)>=t1.e)),t1.b) then 19 else 11 end,17,f) then 11 else b end in (select c from t1 union select 19 from t1))}
+} {60150000}
+do_test randexpr-2.762 {
+  db eval {SELECT t1.e*t1.c*(select count(*)+abs(cast(avg(case t1.a when (select  -count(*)-(min(t1.a)) & +(abs(case max(a) when abs(min(17)) then +cast(avg(a) AS integer) & count(distinct d) else count(*) end)) from t1) then a else  -+b-coalesce((select max(f*19) from t1 where ~~c in (a,13,t1.a)),t1.b) end) AS integer)) from t1) FROM t1 WHERE NOT (19-(abs(b)/abs(t1.b)) | case when t1.e in (select case (+cast(avg(t1.c+a) AS integer) | (cast(avg(t1.d) AS integer) |  -cast(avg( -d) AS integer)* -( -count(*))+min(17))) when min(13) then max( -11) else count(*) end from t1 union select min(17) from t1) or 13 in (case when t1.e between e and coalesce((select c from t1 where not exists(select 1 from t1 where (b)>=t1.e)),t1.b) then 19 else 11 end,17,f) then 11 else b end in (select c from t1 union select 19 from t1))}
+} {60150000}
+do_test randexpr-2.763 {
+  db eval {SELECT t1.b+case when e+(select abs(abs(min(d+case 11 when t1.d+19 | b | case when e<=b+coalesce((select 11 from t1 where 11<>13),17)-17 then t1.d else d end+19 then 11 else d end))) from t1)- -d-(t1.e) in (select 17 from t1 union select 11 from t1) then t1.e when exists(select 1 from t1 where e>t1.c) then t1.b else 13 end FROM t1 WHERE e in (select count(*) from t1 union select min(case when (select abs(cast(avg(+17) AS integer)) from t1) not between t1.e and 17+t1.f then f when ((case when ((select cast(avg(t1.d) AS integer) from t1)=17) then 19 else t1.f end)<>t1.c or t1.a in (select  -+abs(cast(avg(t1.b) AS integer)) from t1 union select +((cast(avg(11) AS integer)))+ -min(b) from t1)) or not exists(select 1 from t1 where ((t1.d in (b,a,17)) and f<=t1.a)) and t1.f<> - -t1.a then d else  - -t1.d end) from t1)}
+} {}
+do_test randexpr-2.764 {
+  db eval {SELECT t1.b+case when e+(select abs(abs(min(d+case 11 when t1.d+19 | b | case when e<=b+coalesce((select 11 from t1 where 11<>13),17)-17 then t1.d else d end+19 then 11 else d end))) from t1)- -d-(t1.e) in (select 17 from t1 union select 11 from t1) then t1.e when exists(select 1 from t1 where e>t1.c) then t1.b else 13 end FROM t1 WHERE NOT (e in (select count(*) from t1 union select min(case when (select abs(cast(avg(+17) AS integer)) from t1) not between t1.e and 17+t1.f then f when ((case when ((select cast(avg(t1.d) AS integer) from t1)=17) then 19 else t1.f end)<>t1.c or t1.a in (select  -+abs(cast(avg(t1.b) AS integer)) from t1 union select +((cast(avg(11) AS integer)))+ -min(b) from t1)) or not exists(select 1 from t1 where ((t1.d in (b,a,17)) and f<=t1.a)) and t1.f<> - -t1.a then d else  - -t1.d end) from t1))}
+} {400}
+do_test randexpr-2.765 {
+  db eval {SELECT t1.b+case when e+(select abs(abs(min(d+case 11 when t1.d+19 & b & case when e<=b+coalesce((select 11 from t1 where 11<>13),17)-17 then t1.d else d end+19 then 11 else d end))) from t1)- -d-(t1.e) in (select 17 from t1 union select 11 from t1) then t1.e when exists(select 1 from t1 where e>t1.c) then t1.b else 13 end FROM t1 WHERE NOT (e in (select count(*) from t1 union select min(case when (select abs(cast(avg(+17) AS integer)) from t1) not between t1.e and 17+t1.f then f when ((case when ((select cast(avg(t1.d) AS integer) from t1)=17) then 19 else t1.f end)<>t1.c or t1.a in (select  -+abs(cast(avg(t1.b) AS integer)) from t1 union select +((cast(avg(11) AS integer)))+ -min(b) from t1)) or not exists(select 1 from t1 where ((t1.d in (b,a,17)) and f<=t1.a)) and t1.f<> - -t1.a then d else  - -t1.d end) from t1))}
+} {400}
+do_test randexpr-2.766 {
+  db eval {SELECT (select cast(avg( -coalesce((select max(+(abs(t1.d)/abs(~d))*+c*t1.c) from t1 where e in (select coalesce((select f from t1 where t1.f<> -11),17)+c*19 from t1 union select f from t1)),t1.c)) AS integer)-~case ~count(distinct 17)*count(distinct 19) when count(distinct t1.c)*count(*)-count(distinct 19) then +(max(a)+case  - - - -min(t1.f) when max(c) then count(distinct (f)) else min(13) end) else ( -cast(avg( -t1.b) AS integer)) end from t1) FROM t1 WHERE exists(select 1 from t1 where (abs(e*coalesce((select (abs(b*(t1.b)+f)/abs(d)) from t1 where t1.c in (select min(a | t1.b) from t1 union select abs(case  -case ~ -~cast(avg(e) AS integer) when ++min(17)+( -cast(avg(a) AS integer))-max(t1.c) then cast(avg(t1.b) AS integer) else cast(avg(f) AS integer) end when  - -max((t1.d)) then  -min(t1.b) else cast(avg(t1.c) AS integer) end) from t1)),b))/abs(t1.d)) in (select min(t1.c)-cast(avg( -e) AS integer)- -cast(avg(t1.f) AS integer) from t1 union select (max((19))) from t1))}
+} {}
+do_test randexpr-2.767 {
+  db eval {SELECT (select cast(avg( -coalesce((select max(+(abs(t1.d)/abs(~d))*+c*t1.c) from t1 where e in (select coalesce((select f from t1 where t1.f<> -11),17)+c*19 from t1 union select f from t1)),t1.c)) AS integer)-~case ~count(distinct 17)*count(distinct 19) when count(distinct t1.c)*count(*)-count(distinct 19) then +(max(a)+case  - - - -min(t1.f) when max(c) then count(distinct (f)) else min(13) end) else ( -cast(avg( -t1.b) AS integer)) end from t1) FROM t1 WHERE NOT (exists(select 1 from t1 where (abs(e*coalesce((select (abs(b*(t1.b)+f)/abs(d)) from t1 where t1.c in (select min(a | t1.b) from t1 union select abs(case  -case ~ -~cast(avg(e) AS integer) when ++min(17)+( -cast(avg(a) AS integer))-max(t1.c) then cast(avg(t1.b) AS integer) else cast(avg(f) AS integer) end when  - -max((t1.d)) then  -min(t1.b) else cast(avg(t1.c) AS integer) end) from t1)),b))/abs(t1.d)) in (select min(t1.c)-cast(avg( -e) AS integer)- -cast(avg(t1.f) AS integer) from t1 union select (max((19))) from t1)))}
+} {-99}
+do_test randexpr-2.768 {
+  db eval {SELECT t1.a+11*coalesce((select max( -t1.e-coalesce((select max((abs(t1.c)/abs((13*e+t1.c)-t1.f))) from t1 where exists(select 1 from t1 where d<>a) or ~(select case abs(count(distinct f)) when (count(*)) then count(*) else min(t1.f) end from t1)+coalesce((select f from t1 where d in (select min(t1.d) from t1 union select count(*) from t1)),c) in (11,t1.a,t1.b)),11)- -11) from t1 where 13<11),t1.b) FROM t1 WHERE not ++coalesce((select t1.f from t1 where not exists(select 1 from t1 where ((select min(b) from t1)<>case t1.d when coalesce((select max(case e-t1.c when 19-t1.c+f+(t1.c*coalesce((select max(17) from t1 where 17 between 11 and t1.a),t1.d)+b) then  -17 else d end-a) from t1 where t1.d>11),b) then 11 else c end))),b | t1.d)*17 not between t1.e and 17}
+} {}
+do_test randexpr-2.769 {
+  db eval {SELECT t1.a+11*coalesce((select max( -t1.e-coalesce((select max((abs(t1.c)/abs((13*e+t1.c)-t1.f))) from t1 where exists(select 1 from t1 where d<>a) or ~(select case abs(count(distinct f)) when (count(*)) then count(*) else min(t1.f) end from t1)+coalesce((select f from t1 where d in (select min(t1.d) from t1 union select count(*) from t1)),c) in (11,t1.a,t1.b)),11)- -11) from t1 where 13<11),t1.b) FROM t1 WHERE NOT (not ++coalesce((select t1.f from t1 where not exists(select 1 from t1 where ((select min(b) from t1)<>case t1.d when coalesce((select max(case e-t1.c when 19-t1.c+f+(t1.c*coalesce((select max(17) from t1 where 17 between 11 and t1.a),t1.d)+b) then  -17 else d end-a) from t1 where t1.d>11),b) then 11 else c end))),b | t1.d)*17 not between t1.e and 17)}
+} {2300}
+do_test randexpr-2.770 {
+  db eval {SELECT coalesce((select max(coalesce((select ((abs(coalesce((select max((select ~(count(distinct e-11)-cast(avg(t1.a) AS integer) | count(*)) from t1)) from t1 where t1.f<case when not exists(select 1 from t1 where exists(select 1 from t1 where t1.a not in (11,e,13))) then t1.b when t1.d<t1.b then t1.e else t1.b end+ -c or t1.e>b or t1.c in (select c from t1 union select 19 from t1)),e | b))/abs(t1.f))) from t1 where e in (select  -(b) from t1 union select 13 from t1)),t1.a)) from t1 where f<>11),t1.e) FROM t1 WHERE  -11 in (a,case when exists(select 1 from t1 where 11 in (select 13 from t1 union select t1.d from t1)) and exists(select 1 from t1 where exists(select 1 from t1 where (t1.a) not between t1.c and t1.c)) then ~case when ~t1.f not between +t1.b-11 and e or not b in (c,17,e) and (not exists(select 1 from t1 where b in (( -t1.e), -t1.c,t1.c))) or 17 not in (t1.e,t1.c,t1.f) then c when 19= - -11 then t1.b else t1.c end when (13) between t1.f and ( -t1.e) then t1.d else  -t1.d end*c,d)}
+} {}
+do_test randexpr-2.771 {
+  db eval {SELECT coalesce((select max(coalesce((select ((abs(coalesce((select max((select ~(count(distinct e-11)-cast(avg(t1.a) AS integer) | count(*)) from t1)) from t1 where t1.f<case when not exists(select 1 from t1 where exists(select 1 from t1 where t1.a not in (11,e,13))) then t1.b when t1.d<t1.b then t1.e else t1.b end+ -c or t1.e>b or t1.c in (select c from t1 union select 19 from t1)),e | b))/abs(t1.f))) from t1 where e in (select  -(b) from t1 union select 13 from t1)),t1.a)) from t1 where f<>11),t1.e) FROM t1 WHERE NOT ( -11 in (a,case when exists(select 1 from t1 where 11 in (select 13 from t1 union select t1.d from t1)) and exists(select 1 from t1 where exists(select 1 from t1 where (t1.a) not between t1.c and t1.c)) then ~case when ~t1.f not between +t1.b-11 and e or not b in (c,17,e) and (not exists(select 1 from t1 where b in (( -t1.e), -t1.c,t1.c))) or 17 not in (t1.e,t1.c,t1.f) then c when 19= - -11 then t1.b else t1.c end when (13) between t1.f and ( -t1.e) then t1.d else  -t1.d end*c,d))}
+} {100}
+do_test randexpr-2.772 {
+  db eval {SELECT coalesce((select max(coalesce((select ((abs(coalesce((select max((select ~(count(distinct e-11)-cast(avg(t1.a) AS integer) & count(*)) from t1)) from t1 where t1.f<case when not exists(select 1 from t1 where exists(select 1 from t1 where t1.a not in (11,e,13))) then t1.b when t1.d<t1.b then t1.e else t1.b end+ -c or t1.e>b or t1.c in (select c from t1 union select 19 from t1)),e & b))/abs(t1.f))) from t1 where e in (select  -(b) from t1 union select 13 from t1)),t1.a)) from t1 where f<>11),t1.e) FROM t1 WHERE NOT ( -11 in (a,case when exists(select 1 from t1 where 11 in (select 13 from t1 union select t1.d from t1)) and exists(select 1 from t1 where exists(select 1 from t1 where (t1.a) not between t1.c and t1.c)) then ~case when ~t1.f not between +t1.b-11 and e or not b in (c,17,e) and (not exists(select 1 from t1 where b in (( -t1.e), -t1.c,t1.c))) or 17 not in (t1.e,t1.c,t1.f) then c when 19= - -11 then t1.b else t1.c end when (13) between t1.f and ( -t1.e) then t1.d else  -t1.d end*c,d))}
+} {100}
+do_test randexpr-2.773 {
+  db eval {SELECT 17-13-case 19 when 17+case case t1.b when t1.b then coalesce((select coalesce((select 11 from t1 where (coalesce((select t1.a from t1 where (abs(f)/abs(case t1.e when 11 then a else t1.c end))<c),b)*a- -t1.e) not between t1.e and  -13),19) from t1 where d>19 or d not between f and t1.e),(t1.c)) else 11 end when  -a then 13 else e end then t1.b else b end+t1.c FROM t1 WHERE not exists(select 1 from t1 where coalesce((select e from t1 where case when not exists(select 1 from t1 where not not exists(select 1 from t1 where f<> -t1.e-t1.c)) or coalesce((select max(17+t1.c) from t1 where t1.f in (select cast(avg(17) AS integer) from t1 union select cast(avg(t1.c) AS integer) from t1)),t1.d)<>19 then 19 else t1.a+ -(b)+t1.c end<=t1.c),t1.b)>t1.d) or (e) in (t1.c,f,13) or d in (select +count(*) from t1 union select count(*) from t1)}
+} {}
+do_test randexpr-2.774 {
+  db eval {SELECT 17-13-case 19 when 17+case case t1.b when t1.b then coalesce((select coalesce((select 11 from t1 where (coalesce((select t1.a from t1 where (abs(f)/abs(case t1.e when 11 then a else t1.c end))<c),b)*a- -t1.e) not between t1.e and  -13),19) from t1 where d>19 or d not between f and t1.e),(t1.c)) else 11 end when  -a then 13 else e end then t1.b else b end+t1.c FROM t1 WHERE NOT (not exists(select 1 from t1 where coalesce((select e from t1 where case when not exists(select 1 from t1 where not not exists(select 1 from t1 where f<> -t1.e-t1.c)) or coalesce((select max(17+t1.c) from t1 where t1.f in (select cast(avg(17) AS integer) from t1 union select cast(avg(t1.c) AS integer) from t1)),t1.d)<>19 then 19 else t1.a+ -(b)+t1.c end<=t1.c),t1.b)>t1.d) or (e) in (t1.c,f,13) or d in (select +count(*) from t1 union select count(*) from t1))}
+} {104}
+do_test randexpr-2.775 {
+  db eval {SELECT t1.e*(abs(coalesce((select max(case when t1.c in (select (case when d>13 then t1.c else 11 end+e) from t1 union select t1.a from t1) or t1.a between 17 and c then c when t1.d>=a then t1.c else t1.e end-t1.e*t1.b-d) from t1 where b<>(t1.c) or not exists(select 1 from t1 where b in (t1.d,13,a))),11)*t1.a)/abs(t1.a))+t1.c FROM t1 WHERE a>c}
+} {}
+do_test randexpr-2.776 {
+  db eval {SELECT t1.e*(abs(coalesce((select max(case when t1.c in (select (case when d>13 then t1.c else 11 end+e) from t1 union select t1.a from t1) or t1.a between 17 and c then c when t1.d>=a then t1.c else t1.e end-t1.e*t1.b-d) from t1 where b<>(t1.c) or not exists(select 1 from t1 where b in (t1.d,13,a))),11)*t1.a)/abs(t1.a))+t1.c FROM t1 WHERE NOT (a>c)}
+} {50050300}
+do_test randexpr-2.777 {
+  db eval {SELECT t1.d*(+coalesce((select max(case when coalesce((select (abs(f)/abs((abs(d)/abs((select cast(avg(19+11) AS integer) from t1)))+t1.b)) from t1 where exists(select 1 from t1 where t1.d not between t1.f and t1.e)),17) not in (17,t1.f, -t1.b) then 19 else  -19 end) from t1 where exists(select 1 from t1 where 11 in (select abs(count(distinct t1.f)) from t1 union select cast(avg(t1.e) AS integer) from t1) and exists(select 1 from t1 where t1.f<t1.c) or 17<f)),13)+13) FROM t1 WHERE not exists(select 1 from t1 where t1.c*coalesce((select max(19) from t1 where a between (select abs(+min(b)*case cast(avg(b) AS integer) when case  -(count(distinct 11)) when max(coalesce((select 11 from t1 where c in (13,17,t1.b)),b)) then  -count(*) else (cast(avg(19) AS integer)) end+max(11) then max(t1.e) else count(*) end | count(*))+count(*) from t1) and ~a),(select  -count(*) from t1)) between t1.c and 13-d)}
+} {12800}
+do_test randexpr-2.778 {
+  db eval {SELECT t1.d*(+coalesce((select max(case when coalesce((select (abs(f)/abs((abs(d)/abs((select cast(avg(19+11) AS integer) from t1)))+t1.b)) from t1 where exists(select 1 from t1 where t1.d not between t1.f and t1.e)),17) not in (17,t1.f, -t1.b) then 19 else  -19 end) from t1 where exists(select 1 from t1 where 11 in (select abs(count(distinct t1.f)) from t1 union select cast(avg(t1.e) AS integer) from t1) and exists(select 1 from t1 where t1.f<t1.c) or 17<f)),13)+13) FROM t1 WHERE NOT (not exists(select 1 from t1 where t1.c*coalesce((select max(19) from t1 where a between (select abs(+min(b)*case cast(avg(b) AS integer) when case  -(count(distinct 11)) when max(coalesce((select 11 from t1 where c in (13,17,t1.b)),b)) then  -count(*) else (cast(avg(19) AS integer)) end+max(11) then max(t1.e) else count(*) end | count(*))+count(*) from t1) and ~a),(select  -count(*) from t1)) between t1.c and 13-d))}
+} {}
+do_test randexpr-2.779 {
+  db eval {SELECT coalesce((select max(coalesce((select (select cast(avg(d) AS integer) | case max(~f) | count(distinct t1.d) when count(*) then count(*) else  -min(17) end from t1) from t1 where b=t1.e+ -e or t1.a not in (t1.f,t1.d,t1.d) or f not in (t1.a, -t1.b,f)),t1.c)+b | 13-d) from t1 where t1.b> -11),(17)) | b-19*d FROM t1 WHERE b>coalesce((select max(13+d) from t1 where 17>=11),t1.b)}
+} {}
+do_test randexpr-2.780 {
+  db eval {SELECT coalesce((select max(coalesce((select (select cast(avg(d) AS integer) | case max(~f) | count(distinct t1.d) when count(*) then count(*) else  -min(17) end from t1) from t1 where b=t1.e+ -e or t1.a not in (t1.f,t1.d,t1.d) or f not in (t1.a, -t1.b,f)),t1.c)+b | 13-d) from t1 where t1.b> -11),(17)) | b-19*d FROM t1 WHERE NOT (b>coalesce((select max(13+d) from t1 where 17>=11),t1.b))}
+} {-1}
+do_test randexpr-2.781 {
+  db eval {SELECT coalesce((select max(coalesce((select (select cast(avg(d) AS integer) & case max(~f) & count(distinct t1.d) when count(*) then count(*) else  -min(17) end from t1) from t1 where b=t1.e+ -e or t1.a not in (t1.f,t1.d,t1.d) or f not in (t1.a, -t1.b,f)),t1.c)+b & 13-d) from t1 where t1.b> -11),(17)) & b-19*d FROM t1 WHERE NOT (b>coalesce((select max(13+d) from t1 where 17>=11),t1.b))}
+} {8}
+do_test randexpr-2.782 {
+  db eval {SELECT (d+f*t1.c-t1.e+coalesce((select c from t1 where c>=a),case when (c in (select e from t1 union select 13 from t1)) then 11+a else f end))-13 FROM t1 WHERE c not between c and b+coalesce((select c from t1 where t1.d<case when 13 not in (case a when b then coalesce((select max(case when f in (select case when ((t1.c | t1.f not between c and 13)) then t1.e-(t1.a) else 17 end from t1 union select 13 from t1) then t1.e else e end*a) from t1 where 11=17),t1.f) else f end,17,t1.f) then t1.d else t1.d end+t1.a | b),f)}
+} {}
+do_test randexpr-2.783 {
+  db eval {SELECT (d+f*t1.c-t1.e+coalesce((select c from t1 where c>=a),case when (c in (select e from t1 union select 13 from t1)) then 11+a else f end))-13 FROM t1 WHERE NOT (c not between c and b+coalesce((select c from t1 where t1.d<case when 13 not in (case a when b then coalesce((select max(case when f in (select case when ((t1.c | t1.f not between c and 13)) then t1.e-(t1.a) else 17 end from t1 union select 13 from t1) then t1.e else e end*a) from t1 where 11=17),t1.f) else f end,17,t1.f) then t1.d else t1.d end+t1.a | b),f))}
+} {180187}
+do_test randexpr-2.784 {
+  db eval {SELECT case when t1.e not in (t1.a,~case when case when 17>=d then (abs(13)/abs(t1.f)) when (d in ((select abs(min(19)) from t1), -(select count(*)-abs( -count(*)) from t1),t1.e)) then coalesce((select max(19) from t1 where (c)>t1.f),17) else 13 end<>a then 11 when b<(d) then b else c end,d) then 17 when (17 in (13,t1.a,t1.c)) then e else c end+t1.c FROM t1 WHERE t1.a+t1.e in (select 19 from t1 union select t1.c from t1)}
+} {}
+do_test randexpr-2.785 {
+  db eval {SELECT case when t1.e not in (t1.a,~case when case when 17>=d then (abs(13)/abs(t1.f)) when (d in ((select abs(min(19)) from t1), -(select count(*)-abs( -count(*)) from t1),t1.e)) then coalesce((select max(19) from t1 where (c)>t1.f),17) else 13 end<>a then 11 when b<(d) then b else c end,d) then 17 when (17 in (13,t1.a,t1.c)) then e else c end+t1.c FROM t1 WHERE NOT (t1.a+t1.e in (select 19 from t1 union select t1.c from t1))}
+} {317}
+do_test randexpr-2.786 {
+  db eval {SELECT (select ~cast(avg(t1.c) AS integer)*case count(*) | +min(case +case when a<13 or case t1.f when c then 17 else t1.d end in (11,a,(t1.a)) and a<>a then t1.b+f when f not in (d,t1.a,c) then t1.f else t1.e end when t1.f then 17 else f end)+abs(++count(distinct 19))*(count(distinct 13))-count(distinct t1.e)-(count(*))*max(19) when max(11) then cast(avg(a) AS integer) else min(t1.f) end from t1) FROM t1 WHERE t1.a not between 17 and d}
+} {}
+do_test randexpr-2.787 {
+  db eval {SELECT (select ~cast(avg(t1.c) AS integer)*case count(*) | +min(case +case when a<13 or case t1.f when c then 17 else t1.d end in (11,a,(t1.a)) and a<>a then t1.b+f when f not in (d,t1.a,c) then t1.f else t1.e end when t1.f then 17 else f end)+abs(++count(distinct 19))*(count(distinct 13))-count(distinct t1.e)-(count(*))*max(19) when max(11) then cast(avg(a) AS integer) else min(t1.f) end from t1) FROM t1 WHERE NOT (t1.a not between 17 and d)}
+} {-180600}
+do_test randexpr-2.788 {
+  db eval {SELECT (select ~cast(avg(t1.c) AS integer)*case count(*) & +min(case +case when a<13 or case t1.f when c then 17 else t1.d end in (11,a,(t1.a)) and a<>a then t1.b+f when f not in (d,t1.a,c) then t1.f else t1.e end when t1.f then 17 else f end)+abs(++count(distinct 19))*(count(distinct 13))-count(distinct t1.e)-(count(*))*max(19) when max(11) then cast(avg(a) AS integer) else min(t1.f) end from t1) FROM t1 WHERE NOT (t1.a not between 17 and d)}
+} {-180600}
+do_test randexpr-2.789 {
+  db eval {SELECT case t1.a when c then  -~t1.d*t1.e-coalesce((select max((abs(d+e+d)/abs(case when 11-t1.d in (select t1.d from t1 union select coalesce((select t1.c from t1 where 17<=t1.d and e between 11 and a),c) from t1) or 11 in (select ( -+(count(*))) from t1 union select count(distinct  -t1.a) from t1) then (f) when b=a then c else t1.b end))) from t1 where t1.c not between 17 and t1.b),13)+t1.f else d end FROM t1 WHERE not exists(select 1 from t1 where f<=a)}
+} {400}
+do_test randexpr-2.790 {
+  db eval {SELECT case t1.a when c then  -~t1.d*t1.e-coalesce((select max((abs(d+e+d)/abs(case when 11-t1.d in (select t1.d from t1 union select coalesce((select t1.c from t1 where 17<=t1.d and e between 11 and a),c) from t1) or 11 in (select ( -+(count(*))) from t1 union select count(distinct  -t1.a) from t1) then (f) when b=a then c else t1.b end))) from t1 where t1.c not between 17 and t1.b),13)+t1.f else d end FROM t1 WHERE NOT (not exists(select 1 from t1 where f<=a))}
+} {}
+do_test randexpr-2.791 {
+  db eval {SELECT (select  -max(d) from t1)+coalesce((select max(t1.e*t1.d*f) from t1 where t1.b-coalesce((select  -a*d from t1 where t1.c not in (t1.f,coalesce((select b+t1.b from t1 where t1.a not between f and t1.b),coalesce((select  -b from t1 where (t1.d>=t1.c) and 19<>t1.f),t1.a))-e*a,e)),(t1.a))+t1.f between 19 and e),t1.a)*a FROM t1 WHERE exists(select 1 from t1 where not exists(select 1 from t1 where case when t1.d-t1.b-t1.d*(case when t1.b>= -t1.d then c when t1.d not between c and t1.d then (19) else d end*e)+t1.d | 19>t1.c then e when exists(select 1 from t1 where t1.e not between d and t1.b or (17 in (t1.e, - -a,t1.d))) then t1.f else (e) end between 13 and e or 11>t1.b))}
+} {9600}
+do_test randexpr-2.792 {
+  db eval {SELECT (select  -max(d) from t1)+coalesce((select max(t1.e*t1.d*f) from t1 where t1.b-coalesce((select  -a*d from t1 where t1.c not in (t1.f,coalesce((select b+t1.b from t1 where t1.a not between f and t1.b),coalesce((select  -b from t1 where (t1.d>=t1.c) and 19<>t1.f),t1.a))-e*a,e)),(t1.a))+t1.f between 19 and e),t1.a)*a FROM t1 WHERE NOT (exists(select 1 from t1 where not exists(select 1 from t1 where case when t1.d-t1.b-t1.d*(case when t1.b>= -t1.d then c when t1.d not between c and t1.d then (19) else d end*e)+t1.d | 19>t1.c then e when exists(select 1 from t1 where t1.e not between d and t1.b or (17 in (t1.e, - -a,t1.d))) then t1.f else (e) end between 13 and e or 11>t1.b)))}
+} {}
+do_test randexpr-2.793 {
+  db eval {SELECT 11-t1.d-t1.e-case when (select count(distinct t1.b+coalesce((select max((abs(19)/abs(case when coalesce((select t1.f from t1 where e not between t1.f and t1.f),f)*( -11)=((e)) then 11 else d end))) from t1 where e in (17,t1.b,t1.b)), -t1.a)-(t1.c)) from t1)>t1.f then t1.b when 11>13 and a>=f then 11 else d end-t1.f FROM t1 WHERE (select min(d)-case cast(avg(case (d-~t1.c+~(select max(+d-coalesce((select max(t1.f) from t1 where c<>e),t1.a))-(( - -(cast(avg(13) AS integer)))-count(distinct e))*max(17) from t1) | 19-13*b) when  -t1.d then 13 else  -13 end) AS integer) when min(t1.c) then cast(avg(e) AS integer) else ~count(*) end from t1)<b}
+} {}
+do_test randexpr-2.794 {
+  db eval {SELECT 11-t1.d-t1.e-case when (select count(distinct t1.b+coalesce((select max((abs(19)/abs(case when coalesce((select t1.f from t1 where e not between t1.f and t1.f),f)*( -11)=((e)) then 11 else d end))) from t1 where e in (17,t1.b,t1.b)), -t1.a)-(t1.c)) from t1)>t1.f then t1.b when 11>13 and a>=f then 11 else d end-t1.f FROM t1 WHERE NOT ((select min(d)-case cast(avg(case (d-~t1.c+~(select max(+d-coalesce((select max(t1.f) from t1 where c<>e),t1.a))-(( - -(cast(avg(13) AS integer)))-count(distinct e))*max(17) from t1) | 19-13*b) when  -t1.d then 13 else  -13 end) AS integer) when min(t1.c) then cast(avg(e) AS integer) else ~count(*) end from t1)<b)}
+} {-1889}
+do_test randexpr-2.795 {
+  db eval {SELECT case f when 13 then 19 else case when (case when c not between b and d then t1.c when +~t1.d+(select  -+cast(avg(t1.a) AS integer) | ((max(t1.d)))*(max(e)) from t1)-19+t1.a*t1.d in (select ~max(c) from t1 union select count(distinct d)-count(distinct b) from t1) then f else  -11 end not between 11 and 11) or 17>(c) then t1.d else 13 end end FROM t1 WHERE not ((abs(f)/abs(t1.b))<=(select min(+t1.d)+~+case count(distinct (abs(case d when 11 then coalesce((select coalesce((select max(t1.a) from t1 where t1.b=t1.e),t1.f) | a from t1 where 13<>(a)),d) else 17 end*f)/abs(t1.f))) when cast(avg(t1.c) AS integer) then case count(*) when min(t1.b) | cast(avg(t1.c) AS integer) then count(distinct f) else max(17) end else cast(avg((c)) AS integer) end from t1))}
+} {}
+do_test randexpr-2.796 {
+  db eval {SELECT case f when 13 then 19 else case when (case when c not between b and d then t1.c when +~t1.d+(select  -+cast(avg(t1.a) AS integer) | ((max(t1.d)))*(max(e)) from t1)-19+t1.a*t1.d in (select ~max(c) from t1 union select count(distinct d)-count(distinct b) from t1) then f else  -11 end not between 11 and 11) or 17>(c) then t1.d else 13 end end FROM t1 WHERE NOT (not ((abs(f)/abs(t1.b))<=(select min(+t1.d)+~+case count(distinct (abs(case d when 11 then coalesce((select coalesce((select max(t1.a) from t1 where t1.b=t1.e),t1.f) | a from t1 where 13<>(a)),d) else 17 end*f)/abs(t1.f))) when cast(avg(t1.c) AS integer) then case count(*) when min(t1.b) | cast(avg(t1.c) AS integer) then count(distinct f) else max(17) end else cast(avg((c)) AS integer) end from t1)))}
+} {400}
+do_test randexpr-2.797 {
+  db eval {SELECT case f when 13 then 19 else case when (case when c not between b and d then t1.c when +~t1.d+(select  -+cast(avg(t1.a) AS integer) & ((max(t1.d)))*(max(e)) from t1)-19+t1.a*t1.d in (select ~max(c) from t1 union select count(distinct d)-count(distinct b) from t1) then f else  -11 end not between 11 and 11) or 17>(c) then t1.d else 13 end end FROM t1 WHERE NOT (not ((abs(f)/abs(t1.b))<=(select min(+t1.d)+~+case count(distinct (abs(case d when 11 then coalesce((select coalesce((select max(t1.a) from t1 where t1.b=t1.e),t1.f) | a from t1 where 13<>(a)),d) else 17 end*f)/abs(t1.f))) when cast(avg(t1.c) AS integer) then case count(*) when min(t1.b) | cast(avg(t1.c) AS integer) then count(distinct f) else max(17) end else cast(avg((c)) AS integer) end from t1)))}
+} {400}
+do_test randexpr-2.798 {
+  db eval {SELECT f+case when (not exists(select 1 from t1 where ((17<>+t1.b+t1.f or b between t1.e and t1.e)))) then (abs( -(abs(case when exists(select 1 from t1 where not exists(select 1 from t1 where d in (select (select cast(avg((t1.b)) AS integer)-count(*) from t1) from t1 union select t1.e+(11) from t1))) then c when not t1.d between f and 11 or d>a then (a) else 13 end+t1.e+e)/abs(d)))/abs(t1.b)) else f end-13 FROM t1 WHERE case when 17< - -t1.b-case when not exists(select 1 from t1 where 19<>t1.d) then 13+coalesce((select max((abs((case case when  - -t1.c*11 in (select +max(t1.d)*count(distinct  -t1.c) from t1 union select max(t1.b) from t1) then 13 else 19 end when f then 19 else (t1.d) end)+e)/abs(f))) from t1 where (13 between t1.d and 19)),t1.b) else 13 end then a else t1.a end-13 not in (t1.d,d,(t1.f))}
+} {1187}
+do_test randexpr-2.799 {
+  db eval {SELECT f+case when (not exists(select 1 from t1 where ((17<>+t1.b+t1.f or b between t1.e and t1.e)))) then (abs( -(abs(case when exists(select 1 from t1 where not exists(select 1 from t1 where d in (select (select cast(avg((t1.b)) AS integer)-count(*) from t1) from t1 union select t1.e+(11) from t1))) then c when not t1.d between f and 11 or d>a then (a) else 13 end+t1.e+e)/abs(d)))/abs(t1.b)) else f end-13 FROM t1 WHERE NOT (case when 17< - -t1.b-case when not exists(select 1 from t1 where 19<>t1.d) then 13+coalesce((select max((abs((case case when  - -t1.c*11 in (select +max(t1.d)*count(distinct  -t1.c) from t1 union select max(t1.b) from t1) then 13 else 19 end when f then 19 else (t1.d) end)+e)/abs(f))) from t1 where (13 between t1.d and 19)),t1.b) else 13 end then a else t1.a end-13 not in (t1.d,d,(t1.f)))}
+} {}
+do_test randexpr-2.800 {
+  db eval {SELECT +~t1.a-(abs(+case when (((t1.d*t1.c+11 in (select cast(avg(17) AS integer) from t1 union select  -(count(*)) from t1)))) then  -coalesce((select t1.e-b from t1 where not exists(select 1 from t1 where t1.c in (select max(f) from t1 union select max(e) | max( -t1.e)-count(*) from t1))),f) else f end)/abs(t1.f))-e+11+t1.b+t1.a- -17 FROM t1 WHERE +b between case when c<=t1.a then t1.b when case when  -t1.a*d-17+17*~e- -13 in (select + -max(19) | +cast(avg(19) AS integer) from t1 union select (count(distinct  -19)*case max((13)) when max(e)*count(*) then min(t1.d) else count(*) end) from t1) then t1.f else (d) end in (select e from t1 union select d from t1) then f else  -t1.b end and b}
+} {}
+do_test randexpr-2.801 {
+  db eval {SELECT +~t1.a-(abs(+case when (((t1.d*t1.c+11 in (select cast(avg(17) AS integer) from t1 union select  -(count(*)) from t1)))) then  -coalesce((select t1.e-b from t1 where not exists(select 1 from t1 where t1.c in (select max(f) from t1 union select max(e) | max( -t1.e)-count(*) from t1))),f) else f end)/abs(t1.f))-e+11+t1.b+t1.a- -17 FROM t1 WHERE NOT (+b between case when c<=t1.a then t1.b when case when  -t1.a*d-17+17*~e- -13 in (select + -max(19) | +cast(avg(19) AS integer) from t1 union select (count(distinct  -19)*case max((13)) when max(e)*count(*) then min(t1.d) else count(*) end) from t1) then t1.f else (d) end in (select e from t1 union select d from t1) then f else  -t1.b end and b)}
+} {-274}
+do_test randexpr-2.802 {
+  db eval {SELECT +~t1.a-(abs(+case when (((t1.d*t1.c+11 in (select cast(avg(17) AS integer) from t1 union select  -(count(*)) from t1)))) then  -coalesce((select t1.e-b from t1 where not exists(select 1 from t1 where t1.c in (select max(f) from t1 union select max(e) & max( -t1.e)-count(*) from t1))),f) else f end)/abs(t1.f))-e+11+t1.b+t1.a- -17 FROM t1 WHERE NOT (+b between case when c<=t1.a then t1.b when case when  -t1.a*d-17+17*~e- -13 in (select + -max(19) | +cast(avg(19) AS integer) from t1 union select (count(distinct  -19)*case max((13)) when max(e)*count(*) then min(t1.d) else count(*) end) from t1) then t1.f else (d) end in (select e from t1 union select d from t1) then f else  -t1.b end and b)}
+} {-274}
+do_test randexpr-2.803 {
+  db eval {SELECT case when 19=(select ( -count(*)* -(cast(avg(t1.e) AS integer))+count(distinct 13)*min(t1.f)) | cast(avg(t1.e) AS integer) |  -cast(avg(13) AS integer)-(min(d)) from t1) then 13*a when t1.a+((select min((t1.d)) from t1)) in (select t1.b from t1 union select 11 from t1) or not exists(select 1 from t1 where not exists(select 1 from t1 where  - -e in (select t1.e from t1 union select t1.d from t1) or t1.d in (select count(distinct t1.a) from t1 union select count(*) from t1)) or  -b=(19) and 11<c) then b else t1.c end*a FROM t1 WHERE 17-case 19 when t1.f-+(t1.d)-t1.a*t1.a then ~t1.d | e*coalesce((select b from t1 where 17< -17), -f)-17 else 19 end-case when (~t1.d)*17<f then f when t1.c in (f,a,t1.e) then t1.f else 17 end not in (t1.c,e,t1.d)}
+} {20000}
+do_test randexpr-2.804 {
+  db eval {SELECT case when 19=(select ( -count(*)* -(cast(avg(t1.e) AS integer))+count(distinct 13)*min(t1.f)) | cast(avg(t1.e) AS integer) |  -cast(avg(13) AS integer)-(min(d)) from t1) then 13*a when t1.a+((select min((t1.d)) from t1)) in (select t1.b from t1 union select 11 from t1) or not exists(select 1 from t1 where not exists(select 1 from t1 where  - -e in (select t1.e from t1 union select t1.d from t1) or t1.d in (select count(distinct t1.a) from t1 union select count(*) from t1)) or  -b=(19) and 11<c) then b else t1.c end*a FROM t1 WHERE NOT (17-case 19 when t1.f-+(t1.d)-t1.a*t1.a then ~t1.d | e*coalesce((select b from t1 where 17< -17), -f)-17 else 19 end-case when (~t1.d)*17<f then f when t1.c in (f,a,t1.e) then t1.f else 17 end not in (t1.c,e,t1.d))}
+} {}
+do_test randexpr-2.805 {
+  db eval {SELECT case when 19=(select ( -count(*)* -(cast(avg(t1.e) AS integer))+count(distinct 13)*min(t1.f)) & cast(avg(t1.e) AS integer) &  -cast(avg(13) AS integer)-(min(d)) from t1) then 13*a when t1.a+((select min((t1.d)) from t1)) in (select t1.b from t1 union select 11 from t1) or not exists(select 1 from t1 where not exists(select 1 from t1 where  - -e in (select t1.e from t1 union select t1.d from t1) or t1.d in (select count(distinct t1.a) from t1 union select count(*) from t1)) or  -b=(19) and 11<c) then b else t1.c end*a FROM t1 WHERE 17-case 19 when t1.f-+(t1.d)-t1.a*t1.a then ~t1.d | e*coalesce((select b from t1 where 17< -17), -f)-17 else 19 end-case when (~t1.d)*17<f then f when t1.c in (f,a,t1.e) then t1.f else 17 end not in (t1.c,e,t1.d)}
+} {20000}
+do_test randexpr-2.806 {
+  db eval {SELECT +t1.a*11+case when 19<13-11 or exists(select 1 from t1 where not (abs(f)/abs(+t1.a+t1.c*t1.d-t1.c))*t1.a between t1.e and 17) then coalesce((select max(t1.a) from t1 where t1.b not between t1.a and t1.a),17) when 13 not between  -f and  -t1.d then t1.c else d end-13-13*c*t1.e FROM t1 WHERE 19<=case t1.b when  -t1.d+c-t1.a-19-t1.f*t1.b-coalesce((select max(coalesce((select max( -b) from t1 where not t1.f+19 in (select case cast(avg(17) AS integer) when min(t1.a) then max((d)) else max(b) end | count(*) from t1 union select max(13) from t1) and not exists(select 1 from t1 where t1.c not between 19 and 11)),t1.e)*19) from t1 where 13 in (select  -d from t1 union select t1.f from t1)),b)-e-(t1.e) then t1.f else t1.e end}
+} {-1948813}
+do_test randexpr-2.807 {
+  db eval {SELECT +t1.a*11+case when 19<13-11 or exists(select 1 from t1 where not (abs(f)/abs(+t1.a+t1.c*t1.d-t1.c))*t1.a between t1.e and 17) then coalesce((select max(t1.a) from t1 where t1.b not between t1.a and t1.a),17) when 13 not between  -f and  -t1.d then t1.c else d end-13-13*c*t1.e FROM t1 WHERE NOT (19<=case t1.b when  -t1.d+c-t1.a-19-t1.f*t1.b-coalesce((select max(coalesce((select max( -b) from t1 where not t1.f+19 in (select case cast(avg(17) AS integer) when min(t1.a) then max((d)) else max(b) end | count(*) from t1 union select max(13) from t1) and not exists(select 1 from t1 where t1.c not between 19 and 11)),t1.e)*19) from t1 where 13 in (select  -d from t1 union select t1.f from t1)),b)-e-(t1.e) then t1.f else t1.e end)}
+} {}
+do_test randexpr-2.808 {
+  db eval {SELECT case (abs(f)/abs(f)) when t1.e*t1.f then (abs(t1.d)/abs(t1.b*11)) else ~case when case ~~19 when t1.f then e else case coalesce((select (abs(f)/abs(a)) from t1 where t1.a<>17 and t1.a>= -t1.b),t1.f) when t1.d then c else t1.d end end in (select count(*) from t1 union select ~abs(min(t1.a)) | count(*) from t1) then 17 when t1.f not between (e) and t1.c then f else b end+c+a end FROM t1 WHERE t1.f in (case when ~(select max(d) from t1)*t1.f>=case when 17*d<t1.f then d when (t1.d) not between t1.e-t1.d-e and +(t1.e*13*(select case count(*) when  -count(distinct e) then max(13) else count(distinct t1.b) end from t1)-case when c<e then c else 11 end)-17 then  -c else t1.c end then e else (13) end+d,t1.a,11)}
+} {}
+do_test randexpr-2.809 {
+  db eval {SELECT case (abs(f)/abs(f)) when t1.e*t1.f then (abs(t1.d)/abs(t1.b*11)) else ~case when case ~~19 when t1.f then e else case coalesce((select (abs(f)/abs(a)) from t1 where t1.a<>17 and t1.a>= -t1.b),t1.f) when t1.d then c else t1.d end end in (select count(*) from t1 union select ~abs(min(t1.a)) | count(*) from t1) then 17 when t1.f not between (e) and t1.c then f else b end+c+a end FROM t1 WHERE NOT (t1.f in (case when ~(select max(d) from t1)*t1.f>=case when 17*d<t1.f then d when (t1.d) not between t1.e-t1.d-e and +(t1.e*13*(select case count(*) when  -count(distinct e) then max(13) else count(distinct t1.b) end from t1)-case when c<e then c else 11 end)-17 then  -c else t1.c end then e else (13) end+d,t1.a,11))}
+} {-201}
+do_test randexpr-2.810 {
+  db eval {SELECT case (abs(f)/abs(f)) when t1.e*t1.f then (abs(t1.d)/abs(t1.b*11)) else ~case when case ~~19 when t1.f then e else case coalesce((select (abs(f)/abs(a)) from t1 where t1.a<>17 and t1.a>= -t1.b),t1.f) when t1.d then c else t1.d end end in (select count(*) from t1 union select ~abs(min(t1.a)) & count(*) from t1) then 17 when t1.f not between (e) and t1.c then f else b end+c+a end FROM t1 WHERE NOT (t1.f in (case when ~(select max(d) from t1)*t1.f>=case when 17*d<t1.f then d when (t1.d) not between t1.e-t1.d-e and +(t1.e*13*(select case count(*) when  -count(distinct e) then max(13) else count(distinct t1.b) end from t1)-case when c<e then c else 11 end)-17 then  -c else t1.c end then e else (13) end+d,t1.a,11))}
+} {-201}
+do_test randexpr-2.811 {
+  db eval {SELECT (abs(case when a*case when e<+(t1.e) then e else d end+t1.f<c then t1.e when d not between +13 and case when (e>=(select cast(avg(13) AS integer) from t1)) and (exists(select 1 from t1 where not exists(select 1 from t1 where coalesce((select t1.c from t1 where (b between d and 13)),t1.e)>13))) then case when b not between 19 and t1.c then a else 13 end+t1.b when t1.c>11 then c else b end then 13 else t1.d end*t1.f)/abs(17)) FROM t1 WHERE c not in (coalesce((select max(d) from t1 where (select min(t1.e) from t1)-17<=coalesce((select t1.c from t1 where exists(select 1 from t1 where 17<19 or coalesce((select 13 from t1 where t1.e not in (a+t1.c,t1.e*t1.a+t1.d* -a*(a)*f,((b)))),19) not in (c,t1.f,t1.b))),(select abs( -max(19)) from t1))),t1.f)-t1.b, -f,17)}
+} {458}
+do_test randexpr-2.812 {
+  db eval {SELECT (abs(case when a*case when e<+(t1.e) then e else d end+t1.f<c then t1.e when d not between +13 and case when (e>=(select cast(avg(13) AS integer) from t1)) and (exists(select 1 from t1 where not exists(select 1 from t1 where coalesce((select t1.c from t1 where (b between d and 13)),t1.e)>13))) then case when b not between 19 and t1.c then a else 13 end+t1.b when t1.c>11 then c else b end then 13 else t1.d end*t1.f)/abs(17)) FROM t1 WHERE NOT (c not in (coalesce((select max(d) from t1 where (select min(t1.e) from t1)-17<=coalesce((select t1.c from t1 where exists(select 1 from t1 where 17<19 or coalesce((select 13 from t1 where t1.e not in (a+t1.c,t1.e*t1.a+t1.d* -a*(a)*f,((b)))),19) not in (c,t1.f,t1.b))),(select abs( -max(19)) from t1))),t1.f)-t1.b, -f,17))}
+} {}
+do_test randexpr-2.813 {
+  db eval {SELECT t1.c*case when (t1.f in (select case (coalesce((select t1.d from t1 where not (coalesce((select d from t1 where f<=(11)),19)*e in (select ((min((17)) |  -min(t1.b))) from t1 union select  -cast(avg(t1.f) AS integer) from t1))),19)+11)*t1.a when t1.d then t1.a else f end-e-t1.a*( -17) from t1 union select c from t1) or 13 not between t1.e and b) then d+19-t1.f else t1.c end-e FROM t1 WHERE t1.f in (~t1.b,13,+e) and 11<>d-case when t1.e<>t1.b or f>t1.f and 19 not between 17 and case when (b not in (b,t1.d,a)) then e else (abs(11)/abs(d)) end and not exists(select 1 from t1 where t1.a<>c) then t1.f when not (t1.b) in (select t1.d from t1 union select t1.c from t1) then 13 else t1.b+a end}
+} {}
+do_test randexpr-2.814 {
+  db eval {SELECT t1.c*case when (t1.f in (select case (coalesce((select t1.d from t1 where not (coalesce((select d from t1 where f<=(11)),19)*e in (select ((min((17)) |  -min(t1.b))) from t1 union select  -cast(avg(t1.f) AS integer) from t1))),19)+11)*t1.a when t1.d then t1.a else f end-e-t1.a*( -17) from t1 union select c from t1) or 13 not between t1.e and b) then d+19-t1.f else t1.c end-e FROM t1 WHERE NOT (t1.f in (~t1.b,13,+e) and 11<>d-case when t1.e<>t1.b or f>t1.f and 19 not between 17 and case when (b not in (b,t1.d,a)) then e else (abs(11)/abs(d)) end and not exists(select 1 from t1 where t1.a<>c) then t1.f when not (t1.b) in (select t1.d from t1 union select t1.c from t1) then 13 else t1.b+a end)}
+} {-54800}
+do_test randexpr-2.815 {
+  db eval {SELECT t1.c*case when (t1.f in (select case (coalesce((select t1.d from t1 where not (coalesce((select d from t1 where f<=(11)),19)*e in (select ((min((17)) &  -min(t1.b))) from t1 union select  -cast(avg(t1.f) AS integer) from t1))),19)+11)*t1.a when t1.d then t1.a else f end-e-t1.a*( -17) from t1 union select c from t1) or 13 not between t1.e and b) then d+19-t1.f else t1.c end-e FROM t1 WHERE NOT (t1.f in (~t1.b,13,+e) and 11<>d-case when t1.e<>t1.b or f>t1.f and 19 not between 17 and case when (b not in (b,t1.d,a)) then e else (abs(11)/abs(d)) end and not exists(select 1 from t1 where t1.a<>c) then t1.f when not (t1.b) in (select t1.d from t1 union select t1.c from t1) then 13 else t1.b+a end)}
+} {-54800}
+do_test randexpr-2.816 {
+  db eval {SELECT e-t1.e+a*f*11*c*case when ~f*t1.d-t1.c*b-13*19+(abs(t1.d)/abs(case when t1.c=13 then 17 else 19 end))*a between b*(select abs(cast(avg(( -13)) AS integer)) from t1)-19+19 and t1.b then t1.d else t1.d end+13 FROM t1 WHERE t1.b not between a and e}
+} {}
+do_test randexpr-2.817 {
+  db eval {SELECT e-t1.e+a*f*11*c*case when ~f*t1.d-t1.c*b-13*19+(abs(t1.d)/abs(case when t1.c=13 then 17 else 19 end))*a between b*(select abs(cast(avg(( -13)) AS integer)) from t1)-19+19 and t1.b then t1.d else t1.d end+13 FROM t1 WHERE NOT (t1.b not between a and e)}
+} {79200000013}
+do_test randexpr-2.818 {
+  db eval {SELECT case case when coalesce((select b from t1 where not exists(select 1 from t1 where d-e+coalesce((select max(b) from t1 where case case when t1.d-t1.e not between t1.f and e then 11 else t1.d end when t1.e then f else b end+t1.e=13),t1.c) not in (( -c),c,t1.d))),t1.f)<>a and c not in (t1.b,c,t1.a) then (select count(*) from t1) else c end-11 when t1.d then t1.e else c end FROM t1 WHERE ~b | coalesce((select case (select +count(distinct b) from t1) when coalesce((select case when coalesce((select e from t1 where c>b),t1.c) between 11 and (b) then t1.d else t1.b end-e from t1 where t1.d in (13,t1.a,f)),17) then e else 17 end from t1 where not b=t1.c or t1.d in (select abs(abs( -min(13)*(cast(avg(t1.c) AS integer)))) from t1 union select (max(c)) from t1) and b>t1.a),t1.f) in (select 11 from t1 union select c from t1)}
+} {}
+do_test randexpr-2.819 {
+  db eval {SELECT case case when coalesce((select b from t1 where not exists(select 1 from t1 where d-e+coalesce((select max(b) from t1 where case case when t1.d-t1.e not between t1.f and e then 11 else t1.d end when t1.e then f else b end+t1.e=13),t1.c) not in (( -c),c,t1.d))),t1.f)<>a and c not in (t1.b,c,t1.a) then (select count(*) from t1) else c end-11 when t1.d then t1.e else c end FROM t1 WHERE NOT (~b | coalesce((select case (select +count(distinct b) from t1) when coalesce((select case when coalesce((select e from t1 where c>b),t1.c) between 11 and (b) then t1.d else t1.b end-e from t1 where t1.d in (13,t1.a,f)),17) then e else 17 end from t1 where not b=t1.c or t1.d in (select abs(abs( -min(13)*(cast(avg(t1.c) AS integer)))) from t1 union select (max(c)) from t1) and b>t1.a),t1.f) in (select 11 from t1 union select c from t1))}
+} {300}
+do_test randexpr-2.820 {
+  db eval {SELECT case t1.c when t1.e then 19 else  -case when not exists(select 1 from t1 where t1.b in (select (t1.b) from t1 union select +13 from t1)) then coalesce((select max(c*t1.b) from t1 where 17>=19*e),coalesce((select (select abs(~min(coalesce((select max(t1.a) from t1 where  -19 in (f,a,13)),f)))+min(e) | ( -(min(13))) from t1) from t1 where f between  -a and t1.c),t1.e)) when 19<>a then 13 else c end end FROM t1 WHERE t1.e<>f}
+} {-13}
+do_test randexpr-2.821 {
+  db eval {SELECT case t1.c when t1.e then 19 else  -case when not exists(select 1 from t1 where t1.b in (select (t1.b) from t1 union select +13 from t1)) then coalesce((select max(c*t1.b) from t1 where 17>=19*e),coalesce((select (select abs(~min(coalesce((select max(t1.a) from t1 where  -19 in (f,a,13)),f)))+min(e) | ( -(min(13))) from t1) from t1 where f between  -a and t1.c),t1.e)) when 19<>a then 13 else c end end FROM t1 WHERE NOT (t1.e<>f)}
+} {}
+do_test randexpr-2.822 {
+  db eval {SELECT case t1.c when t1.e then 19 else  -case when not exists(select 1 from t1 where t1.b in (select (t1.b) from t1 union select +13 from t1)) then coalesce((select max(c*t1.b) from t1 where 17>=19*e),coalesce((select (select abs(~min(coalesce((select max(t1.a) from t1 where  -19 in (f,a,13)),f)))+min(e) & ( -(min(13))) from t1) from t1 where f between  -a and t1.c),t1.e)) when 19<>a then 13 else c end end FROM t1 WHERE t1.e<>f}
+} {-13}
+do_test randexpr-2.823 {
+  db eval {SELECT 13- -(abs(coalesce((select max(17) from t1 where f*b in (select count(*)*case  -min(~t1.f)+min(coalesce((select  -(select min(17) from t1) from t1 where (t1.b in (select abs(min(t1.f)) from t1 union select  -max(t1.e) from t1))),17)+d) when count(distinct a) then abs(count(*)) else count(*) end from t1 union select min(t1.c) from t1)),coalesce((select max(f) from t1 where d in (select t1.b from t1 union select t1.e from t1)),17)) | t1.a)/abs(c)) | t1.f FROM t1 WHERE (abs(t1.f*11++ -f)/abs(19 | (abs(((abs(f)/abs(17))))/abs(case when a not in (t1.d,(c)-~c*f |  -13-t1.b+ -d,13) then t1.f when 11=11 then c else d end))*d+t1.c))+e+ -(t1.d) in (select t1.a from t1 union select 19 from t1)}
+} {}
+do_test randexpr-2.824 {
+  db eval {SELECT 13- -(abs(coalesce((select max(17) from t1 where f*b in (select count(*)*case  -min(~t1.f)+min(coalesce((select  -(select min(17) from t1) from t1 where (t1.b in (select abs(min(t1.f)) from t1 union select  -max(t1.e) from t1))),17)+d) when count(distinct a) then abs(count(*)) else count(*) end from t1 union select min(t1.c) from t1)),coalesce((select max(f) from t1 where d in (select t1.b from t1 union select t1.e from t1)),17)) | t1.a)/abs(c)) | t1.f FROM t1 WHERE NOT ((abs(t1.f*11++ -f)/abs(19 | (abs(((abs(f)/abs(17))))/abs(case when a not in (t1.d,(c)-~c*f |  -13-t1.b+ -d,13) then t1.f when 11=11 then c else d end))*d+t1.c))+e+ -(t1.d) in (select t1.a from t1 union select 19 from t1))}
+} {605}
+do_test randexpr-2.825 {
+  db eval {SELECT 13- -(abs(coalesce((select max(17) from t1 where f*b in (select count(*)*case  -min(~t1.f)+min(coalesce((select  -(select min(17) from t1) from t1 where (t1.b in (select abs(min(t1.f)) from t1 union select  -max(t1.e) from t1))),17)+d) when count(distinct a) then abs(count(*)) else count(*) end from t1 union select min(t1.c) from t1)),coalesce((select max(f) from t1 where d in (select t1.b from t1 union select t1.e from t1)),17)) & t1.a)/abs(c)) & t1.f FROM t1 WHERE NOT ((abs(t1.f*11++ -f)/abs(19 | (abs(((abs(f)/abs(17))))/abs(case when a not in (t1.d,(c)-~c*f |  -13-t1.b+ -d,13) then t1.f when 11=11 then c else d end))*d+t1.c))+e+ -(t1.d) in (select t1.a from t1 union select 19 from t1))}
+} {8}
+do_test randexpr-2.826 {
+  db eval {SELECT (a+case when (exists(select 1 from t1 where not exists(select 1 from t1 where not t1.e*13=13-f or (e)=t1.c or  -d not between t1.b and t1.a or e not between 17 and (a) and 11 not in (a,(t1.f),a) or t1.e<>13 or t1.d between t1.e and t1.c or t1.d=17 or a>=b))) and a between t1.e and t1.b then case when e not between (17) and t1.d then ~c*coalesce((select t1.a | 13+d from t1 where t1.e not between b and 11),t1.a) else t1.f end else t1.f end-11) FROM t1 WHERE case when case case when case when  -(select +min(11) from t1)*(13)>11 then t1.e when 13<e then 19 else c end in (t1.a,a,t1.e) then 17 when c<>t1.a then t1.d else  -t1.e end when (a) then a else t1.e end>t1.a then 13 when t1.a not in (t1.f,t1.b,t1.a) then a else t1.c end in (select cast(avg(13) AS integer) from t1 union select (max(t1.e)+min(17)) from t1)}
+} {689}
+do_test randexpr-2.827 {
+  db eval {SELECT (a+case when (exists(select 1 from t1 where not exists(select 1 from t1 where not t1.e*13=13-f or (e)=t1.c or  -d not between t1.b and t1.a or e not between 17 and (a) and 11 not in (a,(t1.f),a) or t1.e<>13 or t1.d between t1.e and t1.c or t1.d=17 or a>=b))) and a between t1.e and t1.b then case when e not between (17) and t1.d then ~c*coalesce((select t1.a | 13+d from t1 where t1.e not between b and 11),t1.a) else t1.f end else t1.f end-11) FROM t1 WHERE NOT (case when case case when case when  -(select +min(11) from t1)*(13)>11 then t1.e when 13<e then 19 else c end in (t1.a,a,t1.e) then 17 when c<>t1.a then t1.d else  -t1.e end when (a) then a else t1.e end>t1.a then 13 when t1.a not in (t1.f,t1.b,t1.a) then a else t1.c end in (select cast(avg(13) AS integer) from t1 union select (max(t1.e)+min(17)) from t1))}
+} {}
+do_test randexpr-2.828 {
+  db eval {SELECT (a+case when (exists(select 1 from t1 where not exists(select 1 from t1 where not t1.e*13=13-f or (e)=t1.c or  -d not between t1.b and t1.a or e not between 17 and (a) and 11 not in (a,(t1.f),a) or t1.e<>13 or t1.d between t1.e and t1.c or t1.d=17 or a>=b))) and a between t1.e and t1.b then case when e not between (17) and t1.d then ~c*coalesce((select t1.a & 13+d from t1 where t1.e not between b and 11),t1.a) else t1.f end else t1.f end-11) FROM t1 WHERE case when case case when case when  -(select +min(11) from t1)*(13)>11 then t1.e when 13<e then 19 else c end in (t1.a,a,t1.e) then 17 when c<>t1.a then t1.d else  -t1.e end when (a) then a else t1.e end>t1.a then 13 when t1.a not in (t1.f,t1.b,t1.a) then a else t1.c end in (select cast(avg(13) AS integer) from t1 union select (max(t1.e)+min(17)) from t1)}
+} {689}
+do_test randexpr-2.829 {
+  db eval {SELECT ~b-t1.a-f*+case when exists(select 1 from t1 where 17<>t1.d-f or not exists(select 1 from t1 where (select (min(a)+count(distinct d)) from t1)+( -f)- -c<t1.e or d not between t1.a and b and exists(select 1 from t1 where 11<(a)) and 13=d or 13 between (t1.f) and f)) then t1.b when a not in (e,d,d) then (select ((count(*))) from t1) else case d when d then  -e else 11 end end FROM t1 WHERE ~(abs(17)/abs((a)))*~t1.e-coalesce((select (abs((select abs(cast(avg(d) AS integer)) from t1) | 13*e+17)/abs(t1.f)) from t1 where t1.c<>f and not exists(select 1 from t1 where t1.c<b or 19 in (17,19,b) or 17 not between a and f) or a not in (c,b,17)),t1.c)+t1.a-e-t1.f*e+ -a-t1.a*d not in (d,( -f),t1.a)}
+} {-120301}
+do_test randexpr-2.830 {
+  db eval {SELECT ~b-t1.a-f*+case when exists(select 1 from t1 where 17<>t1.d-f or not exists(select 1 from t1 where (select (min(a)+count(distinct d)) from t1)+( -f)- -c<t1.e or d not between t1.a and b and exists(select 1 from t1 where 11<(a)) and 13=d or 13 between (t1.f) and f)) then t1.b when a not in (e,d,d) then (select ((count(*))) from t1) else case d when d then  -e else 11 end end FROM t1 WHERE NOT (~(abs(17)/abs((a)))*~t1.e-coalesce((select (abs((select abs(cast(avg(d) AS integer)) from t1) | 13*e+17)/abs(t1.f)) from t1 where t1.c<>f and not exists(select 1 from t1 where t1.c<b or 19 in (17,19,b) or 17 not between a and f) or a not in (c,b,17)),t1.c)+t1.a-e-t1.f*e+ -a-t1.a*d not in (d,( -f),t1.a))}
+} {}
+do_test randexpr-2.831 {
+  db eval {SELECT (t1.a)*t1.d*t1.c+t1.b*case when (select case count(*) when (count(*))+ - -count(*)+cast(avg(t1.d) AS integer)- - -min(f) then min(11) else cast(avg(c) AS integer) end from t1) in (select (cast(avg((19)) AS integer)) from t1 union select max(t1.e) from t1) then b when d=a then t1.f else coalesce((select t1.c from t1 where not exists(select 1 from t1 where (~+a not in ((a),b,t1.f)))),case e when 13 then t1.f else 13 end) end FROM t1 WHERE c | a | ~(t1.d)+t1.b not in (t1.a* -+13+~(abs( -case when (11) in (select e from t1 union select t1.f*coalesce((select case when e<e then t1.f when (13) in (13,t1.d,t1.c) then c else t1.d end from t1 where t1.b between  -11 and e),e) from t1) then t1.a else d end*t1.a)/abs(t1.e)),19,d) or t1.e<b}
+} {12002600}
+do_test randexpr-2.832 {
+  db eval {SELECT (t1.a)*t1.d*t1.c+t1.b*case when (select case count(*) when (count(*))+ - -count(*)+cast(avg(t1.d) AS integer)- - -min(f) then min(11) else cast(avg(c) AS integer) end from t1) in (select (cast(avg((19)) AS integer)) from t1 union select max(t1.e) from t1) then b when d=a then t1.f else coalesce((select t1.c from t1 where not exists(select 1 from t1 where (~+a not in ((a),b,t1.f)))),case e when 13 then t1.f else 13 end) end FROM t1 WHERE NOT (c | a | ~(t1.d)+t1.b not in (t1.a* -+13+~(abs( -case when (11) in (select e from t1 union select t1.f*coalesce((select case when e<e then t1.f when (13) in (13,t1.d,t1.c) then c else t1.d end from t1 where t1.b between  -11 and e),e) from t1) then t1.a else d end*t1.a)/abs(t1.e)),19,d) or t1.e<b)}
+} {}
+do_test randexpr-2.833 {
+  db eval {SELECT case when case ~( -t1.e)-a when coalesce((select max(case +t1.e when t1.b*~19 | t1.a*case when c-c<>19 then 13 else c end*d+t1.c then f else 17 end) from t1 where d<=e), -d) then 19 else 17 end in (t1.b,19,c) then 19 when t1.a in (select a from t1 union select 13 from t1) then t1.d else t1.d end FROM t1 WHERE (select abs(cast(avg(t1.d*t1.f) AS integer))-cast(avg(b) AS integer) from t1)-~coalesce((select max(t1.a+t1.d-coalesce((select max(a*case when t1.e<=e then f when t1.d<>a then 11 else 11 end*t1.a*11) from t1 where t1.d>=d),t1.f)) from t1 where 11 not between (13) and 17),f)*t1.b+17-e not in (t1.d,t1.f,t1.f)}
+} {400}
+do_test randexpr-2.834 {
+  db eval {SELECT case when case ~( -t1.e)-a when coalesce((select max(case +t1.e when t1.b*~19 | t1.a*case when c-c<>19 then 13 else c end*d+t1.c then f else 17 end) from t1 where d<=e), -d) then 19 else 17 end in (t1.b,19,c) then 19 when t1.a in (select a from t1 union select 13 from t1) then t1.d else t1.d end FROM t1 WHERE NOT ((select abs(cast(avg(t1.d*t1.f) AS integer))-cast(avg(b) AS integer) from t1)-~coalesce((select max(t1.a+t1.d-coalesce((select max(a*case when t1.e<=e then f when t1.d<>a then 11 else 11 end*t1.a*11) from t1 where t1.d>=d),t1.f)) from t1 where 11 not between (13) and 17),f)*t1.b+17-e not in (t1.d,t1.f,t1.f))}
+} {}
+do_test randexpr-2.835 {
+  db eval {SELECT case when case ~( -t1.e)-a when coalesce((select max(case +t1.e when t1.b*~19 & t1.a*case when c-c<>19 then 13 else c end*d+t1.c then f else 17 end) from t1 where d<=e), -d) then 19 else 17 end in (t1.b,19,c) then 19 when t1.a in (select a from t1 union select 13 from t1) then t1.d else t1.d end FROM t1 WHERE (select abs(cast(avg(t1.d*t1.f) AS integer))-cast(avg(b) AS integer) from t1)-~coalesce((select max(t1.a+t1.d-coalesce((select max(a*case when t1.e<=e then f when t1.d<>a then 11 else 11 end*t1.a*11) from t1 where t1.d>=d),t1.f)) from t1 where 11 not between (13) and 17),f)*t1.b+17-e not in (t1.d,t1.f,t1.f)}
+} {400}
+do_test randexpr-2.836 {
+  db eval {SELECT t1.d+case when case when case when (19 not between ~(t1.a)*b and t1.c) then (select (abs(case count(distinct t1.e) when min( -f) then  -max(t1.d) else cast(avg(19) AS integer) end-(count(distinct t1.e)))) from t1) when a<>t1.f then  -19 else 11 end>f or b in ((13),f,11) then t1.a when t1.e in (e,f,t1.f) then (t1.d) else t1.d end in (17,t1.c,17) then 13 when b not between t1.a and (19) then t1.e else  -11 end+a+((f)) FROM t1 WHERE t1.f in (select case +cast(avg(t1.f+c) AS integer)++count(*) when count(*) then ~~(count(distinct 11+t1.a)) else +(case max(e-f) | ~ -max(t1.f) |  -abs(abs(min(e-19+e))-abs(count(*)))-abs(cast(avg(f) AS integer)) when (min(f)) then cast(avg(a) AS integer) else min(13) end) end from t1 union select  -count(distinct 13) from t1)}
+} {}
+do_test randexpr-2.837 {
+  db eval {SELECT t1.d+case when case when case when (19 not between ~(t1.a)*b and t1.c) then (select (abs(case count(distinct t1.e) when min( -f) then  -max(t1.d) else cast(avg(19) AS integer) end-(count(distinct t1.e)))) from t1) when a<>t1.f then  -19 else 11 end>f or b in ((13),f,11) then t1.a when t1.e in (e,f,t1.f) then (t1.d) else t1.d end in (17,t1.c,17) then 13 when b not between t1.a and (19) then t1.e else  -11 end+a+((f)) FROM t1 WHERE NOT (t1.f in (select case +cast(avg(t1.f+c) AS integer)++count(*) when count(*) then ~~(count(distinct 11+t1.a)) else +(case max(e-f) | ~ -max(t1.f) |  -abs(abs(min(e-19+e))-abs(count(*)))-abs(cast(avg(f) AS integer)) when (min(f)) then cast(avg(a) AS integer) else min(13) end) end from t1 union select  -count(distinct 13) from t1))}
+} {1600}
+do_test randexpr-2.838 {
+  db eval {SELECT (select (min(case when b+b*(select cast(avg(e+19-t1.f*case when case when not (c) in (select (e) from t1 union select f from t1) or t1.b not in (t1.e,t1.b,11) or 19= -t1.a then 17 else  -d end<e then e when t1.b>13 then 13 else t1.f end+11*19) AS integer) from t1)+d not between 11 and c then t1.c else t1.c end)) from t1) FROM t1 WHERE 13 not between +b* -f and coalesce((select f*19-case when not a=~f+t1.d then case when d*b not in (case when d not between  -c and t1.d then e else 13 end+17,c,t1.a) then b when t1.e>t1.f then b else  -d end else f end-e+(d) from t1 where 17 between t1.a and t1.e),t1.d) | t1.b}
+} {}
+do_test randexpr-2.839 {
+  db eval {SELECT (select (min(case when b+b*(select cast(avg(e+19-t1.f*case when case when not (c) in (select (e) from t1 union select f from t1) or t1.b not in (t1.e,t1.b,11) or 19= -t1.a then 17 else  -d end<e then e when t1.b>13 then 13 else t1.f end+11*19) AS integer) from t1)+d not between 11 and c then t1.c else t1.c end)) from t1) FROM t1 WHERE NOT (13 not between +b* -f and coalesce((select f*19-case when not a=~f+t1.d then case when d*b not in (case when d not between  -c and t1.d then e else 13 end+17,c,t1.a) then b when t1.e>t1.f then b else  -d end else f end-e+(d) from t1 where 17 between t1.a and t1.e),t1.d) | t1.b)}
+} {300}
+do_test randexpr-2.840 {
+  db eval {SELECT t1.c-(abs((select (case abs(count(distinct 11-c*11)) when count(*) then count(*) else  -min(+e+~e+coalesce((select d-a*t1.d+t1.e from t1 where (t1.f>=17) and t1.e in (11,a,e)),13)*t1.d) end) from t1)-(a-t1.f)-t1.d)/abs(d)) FROM t1 WHERE t1.c in (select d from t1 union select ( -t1.e) from t1)}
+} {}
+do_test randexpr-2.841 {
+  db eval {SELECT t1.c-(abs((select (case abs(count(distinct 11-c*11)) when count(*) then count(*) else  -min(+e+~e+coalesce((select d-a*t1.d+t1.e from t1 where (t1.f>=17) and t1.e in (11,a,e)),13)*t1.d) end) from t1)-(a-t1.f)-t1.d)/abs(d)) FROM t1 WHERE NOT (t1.c in (select d from t1 union select ( -t1.e) from t1))}
+} {300}
+do_test randexpr-2.842 {
+  db eval {SELECT case when coalesce((select max(t1.a-case when not (coalesce((select d+c from t1 where c between ( -(a)) and b or 17 between 11 and (c)),(t1.f)))=f then b | d when f not in (t1.b,f,a) then t1.a else f end-t1.f) from t1 where 19<=11 and t1.c between 19 and t1.a or t1.f>11), -t1.e)*e between b and 17 then  -t1.f when  -a<=19 or  -11<>t1.f then  -19 else d end FROM t1 WHERE ((13 in (t1.b,f,b)))}
+} {}
+do_test randexpr-2.843 {
+  db eval {SELECT case when coalesce((select max(t1.a-case when not (coalesce((select d+c from t1 where c between ( -(a)) and b or 17 between 11 and (c)),(t1.f)))=f then b | d when f not in (t1.b,f,a) then t1.a else f end-t1.f) from t1 where 19<=11 and t1.c between 19 and t1.a or t1.f>11), -t1.e)*e between b and 17 then  -t1.f when  -a<=19 or  -11<>t1.f then  -19 else d end FROM t1 WHERE NOT (((13 in (t1.b,f,b))))}
+} {-19}
+do_test randexpr-2.844 {
+  db eval {SELECT case when coalesce((select max(t1.a-case when not (coalesce((select d+c from t1 where c between ( -(a)) and b or 17 between 11 and (c)),(t1.f)))=f then b & d when f not in (t1.b,f,a) then t1.a else f end-t1.f) from t1 where 19<=11 and t1.c between 19 and t1.a or t1.f>11), -t1.e)*e between b and 17 then  -t1.f when  -a<=19 or  -11<>t1.f then  -19 else d end FROM t1 WHERE NOT (((13 in (t1.b,f,b))))}
+} {-19}
+do_test randexpr-2.845 {
+  db eval {SELECT case  -(abs(t1.b-13*d*b*t1.e- -11)/abs(+d-t1.f*(11+ -13)-t1.c))+c+(e*t1.c)+f*17*a | t1.e-13+f when t1.d then t1.e else f end-t1.f FROM t1 WHERE  -b*t1.c>13}
+} {}
+do_test randexpr-2.846 {
+  db eval {SELECT case  -(abs(t1.b-13*d*b*t1.e- -11)/abs(+d-t1.f*(11+ -13)-t1.c))+c+(e*t1.c)+f*17*a | t1.e-13+f when t1.d then t1.e else f end-t1.f FROM t1 WHERE NOT ( -b*t1.c>13)}
+} {0}
+do_test randexpr-2.847 {
+  db eval {SELECT case  -(abs(t1.b-13*d*b*t1.e- -11)/abs(+d-t1.f*(11+ -13)-t1.c))+c+(e*t1.c)+f*17*a & t1.e-13+f when t1.d then t1.e else f end-t1.f FROM t1 WHERE NOT ( -b*t1.c>13)}
+} {0}
+do_test randexpr-2.848 {
+  db eval {SELECT case when t1.c between t1.e and ~t1.d+(abs(~d*case t1.b-19 when t1.e then e else e end)/abs(case case t1.b when c then t1.d else 13+17 | e end when (select abs(abs(min(11) | max((a)))) from t1) then d else ~t1.f end)) | t1.b then t1.c when (not (11>=b)) then 13 else e end-a FROM t1 WHERE +13*case when +11*t1.f=f+t1.b then t1.f else t1.b end not between coalesce((select max(f) from t1 where (not exists(select 1 from t1 where exists(select 1 from t1 where not not exists(select 1 from t1 where t1.c in (select abs(min(e)) from t1 union select ~ -case cast(avg(~17) AS integer) when min(e | 17) then min(e) else cast(avg(c) AS integer) end from t1)))) or f>e*t1.a+e)),t1.c) and 17}
+} {-87}
+do_test randexpr-2.849 {
+  db eval {SELECT case when t1.c between t1.e and ~t1.d+(abs(~d*case t1.b-19 when t1.e then e else e end)/abs(case case t1.b when c then t1.d else 13+17 | e end when (select abs(abs(min(11) | max((a)))) from t1) then d else ~t1.f end)) | t1.b then t1.c when (not (11>=b)) then 13 else e end-a FROM t1 WHERE NOT (+13*case when +11*t1.f=f+t1.b then t1.f else t1.b end not between coalesce((select max(f) from t1 where (not exists(select 1 from t1 where exists(select 1 from t1 where not not exists(select 1 from t1 where t1.c in (select abs(min(e)) from t1 union select ~ -case cast(avg(~17) AS integer) when min(e | 17) then min(e) else cast(avg(c) AS integer) end from t1)))) or f>e*t1.a+e)),t1.c) and 17)}
+} {}
+do_test randexpr-2.850 {
+  db eval {SELECT case when t1.c between t1.e and ~t1.d+(abs(~d*case t1.b-19 when t1.e then e else e end)/abs(case case t1.b when c then t1.d else 13+17 & e end when (select abs(abs(min(11) & max((a)))) from t1) then d else ~t1.f end)) & t1.b then t1.c when (not (11>=b)) then 13 else e end-a FROM t1 WHERE +13*case when +11*t1.f=f+t1.b then t1.f else t1.b end not between coalesce((select max(f) from t1 where (not exists(select 1 from t1 where exists(select 1 from t1 where not not exists(select 1 from t1 where t1.c in (select abs(min(e)) from t1 union select ~ -case cast(avg(~17) AS integer) when min(e | 17) then min(e) else cast(avg(c) AS integer) end from t1)))) or f>e*t1.a+e)),t1.c) and 17}
+} {-87}
+do_test randexpr-2.851 {
+  db eval {SELECT coalesce((select +case when case d when b then e else (select min(case b when 17 then b else t1.c end)+ -+ -(abs(max(t1.e))-min(t1.d)+max( -d)) | count(distinct t1.e)+( -cast(avg(13) AS integer)) | max(t1.f)+min(e)+count(*) from t1) end<>b then t1.a else 19*~t1.e-c | t1.c end from t1 where b in ( -c,t1.f,t1.c)),19) FROM t1 WHERE (abs(d)/abs(coalesce((select max(coalesce((select d*c from t1 where ((abs(t1.b)/abs(t1.d))-(abs(t1.f)/abs(t1.c))+(t1.a)*13-t1.e not between t1.e and ~f*11+t1.f-11 | t1.a+13+d)),19)) from t1 where c not in (+ -11,a,c)),t1.c))) in (b,b,a)}
+} {}
+do_test randexpr-2.852 {
+  db eval {SELECT coalesce((select +case when case d when b then e else (select min(case b when 17 then b else t1.c end)+ -+ -(abs(max(t1.e))-min(t1.d)+max( -d)) | count(distinct t1.e)+( -cast(avg(13) AS integer)) | max(t1.f)+min(e)+count(*) from t1) end<>b then t1.a else 19*~t1.e-c | t1.c end from t1 where b in ( -c,t1.f,t1.c)),19) FROM t1 WHERE NOT ((abs(d)/abs(coalesce((select max(coalesce((select d*c from t1 where ((abs(t1.b)/abs(t1.d))-(abs(t1.f)/abs(t1.c))+(t1.a)*13-t1.e not between t1.e and ~f*11+t1.f-11 | t1.a+13+d)),19)) from t1 where c not in (+ -11,a,c)),t1.c))) in (b,b,a))}
+} {19}
+do_test randexpr-2.853 {
+  db eval {SELECT coalesce((select +case when case d when b then e else (select min(case b when 17 then b else t1.c end)+ -+ -(abs(max(t1.e))-min(t1.d)+max( -d)) & count(distinct t1.e)+( -cast(avg(13) AS integer)) & max(t1.f)+min(e)+count(*) from t1) end<>b then t1.a else 19*~t1.e-c & t1.c end from t1 where b in ( -c,t1.f,t1.c)),19) FROM t1 WHERE NOT ((abs(d)/abs(coalesce((select max(coalesce((select d*c from t1 where ((abs(t1.b)/abs(t1.d))-(abs(t1.f)/abs(t1.c))+(t1.a)*13-t1.e not between t1.e and ~f*11+t1.f-11 | t1.a+13+d)),19)) from t1 where c not in (+ -11,a,c)),t1.c))) in (b,b,a))}
+} {19}
+do_test randexpr-2.854 {
+  db eval {SELECT a-a-(abs(f)/abs(coalesce((select 17+19 from t1 where (select min(t1.e*e) from t1)>t1.b+case when not exists(select 1 from t1 where e not between 11 and t1.f-e) then coalesce((select max(f*case when t1.f not in (19,t1.c,(t1.a)) and c<=17 then 11 when 17 not between 11 and 17 then c else 17 end) from t1 where d not between t1.a and 13),t1.c) else t1.b end-13 and a=t1.e),17)+t1.c))-f FROM t1 WHERE +(select cast(avg(13-t1.a-t1.b++t1.a-(select count(*) from t1)+case b-(select +~ -min(case when exists(select 1 from t1 where ((select count(*)+ -(min(13)) from t1)) not between 13 and 13) then d else e end) from t1) when f*t1.b*t1.b then t1.a else b end*t1.a) AS integer) from t1)*t1.b in (t1.f,17,f)}
+} {}
+do_test randexpr-2.855 {
+  db eval {SELECT a-a-(abs(f)/abs(coalesce((select 17+19 from t1 where (select min(t1.e*e) from t1)>t1.b+case when not exists(select 1 from t1 where e not between 11 and t1.f-e) then coalesce((select max(f*case when t1.f not in (19,t1.c,(t1.a)) and c<=17 then 11 when 17 not between 11 and 17 then c else 17 end) from t1 where d not between t1.a and 13),t1.c) else t1.b end-13 and a=t1.e),17)+t1.c))-f FROM t1 WHERE NOT (+(select cast(avg(13-t1.a-t1.b++t1.a-(select count(*) from t1)+case b-(select +~ -min(case when exists(select 1 from t1 where ((select count(*)+ -(min(13)) from t1)) not between 13 and 13) then d else e end) from t1) when f*t1.b*t1.b then t1.a else b end*t1.a) AS integer) from t1)*t1.b in (t1.f,17,f))}
+} {-601}
+do_test randexpr-2.856 {
+  db eval {SELECT case when (11+19 | t1.e-e*17=t1.e*~d+t1.a+ -d | a-~(abs((abs((case when 13 not in (b,((t1.a)),f) then t1.d else t1.a end+e))/abs(t1.f))*b+t1.b)/abs(17))+t1.e+t1.a) then 11 else t1.a end FROM t1 WHERE case (case when (select +~ -~ -cast(avg(b*e*case when t1.a between t1.c and a and d<13 then b else 19 end* -f*d) AS integer) | count(*)++~+min((11))*max(19)-min((b)) from t1) in (select 13 from t1 union select (select min(19) from t1) from t1) then t1.f+t1.d else 13 end-t1.e) when t1.e then t1.f else a end<e}
+} {100}
+do_test randexpr-2.857 {
+  db eval {SELECT case when (11+19 | t1.e-e*17=t1.e*~d+t1.a+ -d | a-~(abs((abs((case when 13 not in (b,((t1.a)),f) then t1.d else t1.a end+e))/abs(t1.f))*b+t1.b)/abs(17))+t1.e+t1.a) then 11 else t1.a end FROM t1 WHERE NOT (case (case when (select +~ -~ -cast(avg(b*e*case when t1.a between t1.c and a and d<13 then b else 19 end* -f*d) AS integer) | count(*)++~+min((11))*max(19)-min((b)) from t1) in (select 13 from t1 union select (select min(19) from t1) from t1) then t1.f+t1.d else 13 end-t1.e) when t1.e then t1.f else a end<e)}
+} {}
+do_test randexpr-2.858 {
+  db eval {SELECT case when (11+19 & t1.e-e*17=t1.e*~d+t1.a+ -d & a-~(abs((abs((case when 13 not in (b,((t1.a)),f) then t1.d else t1.a end+e))/abs(t1.f))*b+t1.b)/abs(17))+t1.e+t1.a) then 11 else t1.a end FROM t1 WHERE case (case when (select +~ -~ -cast(avg(b*e*case when t1.a between t1.c and a and d<13 then b else 19 end* -f*d) AS integer) | count(*)++~+min((11))*max(19)-min((b)) from t1) in (select 13 from t1 union select (select min(19) from t1) from t1) then t1.f+t1.d else 13 end-t1.e) when t1.e then t1.f else a end<e}
+} {100}
+do_test randexpr-2.859 {
+  db eval {SELECT coalesce((select max(+t1.a) from t1 where c in (select  -max(d | coalesce((select max(t1.b) from t1 where (abs(case d when t1.f then t1.e else t1.c end-t1.f)/abs(13))<=11), -a)) | min(t1.c) | (max(f))++abs(case max(b) when (count(distinct e)) then count(*) else min(17) end) from t1 union select (min(19)) from t1) or not exists(select 1 from t1 where coalesce((select c from t1 where b in (select  - - - -count(*) from t1 union select  -min((a)) from t1)),13)<t1.d)),17) FROM t1 WHERE ~a in (select count(*) from t1 union select case +abs((abs(abs(count(*))))+min(a))*max(case when exists(select 1 from t1 where d between 17+(b)-a and 17) then (select count(*) from t1) when 13<> -t1.b then t1.f else t1.e end)*min(t1.a)+ -count(*) | +max(e)*(min(t1.e)) | count(distinct t1.d) | (count(*)) when count(distinct ((19))) then count(*) else max(t1.f) end from t1)}
+} {}
+do_test randexpr-2.860 {
+  db eval {SELECT coalesce((select max(+t1.a) from t1 where c in (select  -max(d | coalesce((select max(t1.b) from t1 where (abs(case d when t1.f then t1.e else t1.c end-t1.f)/abs(13))<=11), -a)) | min(t1.c) | (max(f))++abs(case max(b) when (count(distinct e)) then count(*) else min(17) end) from t1 union select (min(19)) from t1) or not exists(select 1 from t1 where coalesce((select c from t1 where b in (select  - - - -count(*) from t1 union select  -min((a)) from t1)),13)<t1.d)),17) FROM t1 WHERE NOT (~a in (select count(*) from t1 union select case +abs((abs(abs(count(*))))+min(a))*max(case when exists(select 1 from t1 where d between 17+(b)-a and 17) then (select count(*) from t1) when 13<> -t1.b then t1.f else t1.e end)*min(t1.a)+ -count(*) | +max(e)*(min(t1.e)) | count(distinct t1.d) | (count(*)) when count(distinct ((19))) then count(*) else max(t1.f) end from t1))}
+} {17}
+do_test randexpr-2.861 {
+  db eval {SELECT coalesce((select max(+t1.a) from t1 where c in (select  -max(d & coalesce((select max(t1.b) from t1 where (abs(case d when t1.f then t1.e else t1.c end-t1.f)/abs(13))<=11), -a)) & min(t1.c) & (max(f))++abs(case max(b) when (count(distinct e)) then count(*) else min(17) end) from t1 union select (min(19)) from t1) or not exists(select 1 from t1 where coalesce((select c from t1 where b in (select  - - - -count(*) from t1 union select  -min((a)) from t1)),13)<t1.d)),17) FROM t1 WHERE NOT (~a in (select count(*) from t1 union select case +abs((abs(abs(count(*))))+min(a))*max(case when exists(select 1 from t1 where d between 17+(b)-a and 17) then (select count(*) from t1) when 13<> -t1.b then t1.f else t1.e end)*min(t1.a)+ -count(*) | +max(e)*(min(t1.e)) | count(distinct t1.d) | (count(*)) when count(distinct ((19))) then count(*) else max(t1.f) end from t1))}
+} {17}
+do_test randexpr-2.862 {
+  db eval {SELECT case 17 when (select ~count(distinct t1.d) from t1) then e else case when not not exists(select 1 from t1 where (abs(~coalesce((select (coalesce((select max(13) from t1 where e>a),19)) from t1 where (not exists(select 1 from t1 where t1.c in (f,b,c)))),c)*t1.c | 17-(e))/abs(t1.f)) | 17*17*a in (select e from t1 union select f from t1)) then 13 when t1.a not between (b) and t1.c then (abs(17)/abs(17)) else t1.d end*f end FROM t1 WHERE t1.a>t1.c-19}
+} {}
+do_test randexpr-2.863 {
+  db eval {SELECT case 17 when (select ~count(distinct t1.d) from t1) then e else case when not not exists(select 1 from t1 where (abs(~coalesce((select (coalesce((select max(13) from t1 where e>a),19)) from t1 where (not exists(select 1 from t1 where t1.c in (f,b,c)))),c)*t1.c | 17-(e))/abs(t1.f)) | 17*17*a in (select e from t1 union select f from t1)) then 13 when t1.a not between (b) and t1.c then (abs(17)/abs(17)) else t1.d end*f end FROM t1 WHERE NOT (t1.a>t1.c-19)}
+} {600}
+do_test randexpr-2.864 {
+  db eval {SELECT case 17 when (select ~count(distinct t1.d) from t1) then e else case when not not exists(select 1 from t1 where (abs(~coalesce((select (coalesce((select max(13) from t1 where e>a),19)) from t1 where (not exists(select 1 from t1 where t1.c in (f,b,c)))),c)*t1.c & 17-(e))/abs(t1.f)) & 17*17*a in (select e from t1 union select f from t1)) then 13 when t1.a not between (b) and t1.c then (abs(17)/abs(17)) else t1.d end*f end FROM t1 WHERE NOT (t1.a>t1.c-19)}
+} {600}
+do_test randexpr-2.865 {
+  db eval {SELECT case when f>=t1.c then t1.d when coalesce((select max(+11-b) from t1 where a-t1.d in (select +case when f in (13,b | 11,t1.b) then  -t1.d when f in (select ~count(distinct 17) from t1 union select count(distinct t1.a) from t1) then 19 else c end-d+b from t1 union select a from t1) and (17) in (t1.f,11,t1.c)),f)< -a then d else t1.c end-11 FROM t1 WHERE a<(select count(distinct +11*coalesce((select max(coalesce((select max(t1.d) from t1 where t1.e>t1.b),b)*t1.f) from t1 where case 11 when t1.a then  -t1.e else a end<=17),e)-11+c-19) | count(distinct 19)*count(*)* -(count(distinct t1.f))+cast(avg(17) AS integer)-(~~(count(*)))-cast(avg(11) AS integer) | cast(avg((19)) AS integer) from t1)-t1.c}
+} {}
+do_test randexpr-2.866 {
+  db eval {SELECT case when f>=t1.c then t1.d when coalesce((select max(+11-b) from t1 where a-t1.d in (select +case when f in (13,b | 11,t1.b) then  -t1.d when f in (select ~count(distinct 17) from t1 union select count(distinct t1.a) from t1) then 19 else c end-d+b from t1 union select a from t1) and (17) in (t1.f,11,t1.c)),f)< -a then d else t1.c end-11 FROM t1 WHERE NOT (a<(select count(distinct +11*coalesce((select max(coalesce((select max(t1.d) from t1 where t1.e>t1.b),b)*t1.f) from t1 where case 11 when t1.a then  -t1.e else a end<=17),e)-11+c-19) | count(distinct 19)*count(*)* -(count(distinct t1.f))+cast(avg(17) AS integer)-(~~(count(*)))-cast(avg(11) AS integer) | cast(avg((19)) AS integer) from t1)-t1.c)}
+} {389}
+do_test randexpr-2.867 {
+  db eval {SELECT case when f>=t1.c then t1.d when coalesce((select max(+11-b) from t1 where a-t1.d in (select +case when f in (13,b & 11,t1.b) then  -t1.d when f in (select ~count(distinct 17) from t1 union select count(distinct t1.a) from t1) then 19 else c end-d+b from t1 union select a from t1) and (17) in (t1.f,11,t1.c)),f)< -a then d else t1.c end-11 FROM t1 WHERE NOT (a<(select count(distinct +11*coalesce((select max(coalesce((select max(t1.d) from t1 where t1.e>t1.b),b)*t1.f) from t1 where case 11 when t1.a then  -t1.e else a end<=17),e)-11+c-19) | count(distinct 19)*count(*)* -(count(distinct t1.f))+cast(avg(17) AS integer)-(~~(count(*)))-cast(avg(11) AS integer) | cast(avg((19)) AS integer) from t1)-t1.c)}
+} {389}
+do_test randexpr-2.868 {
+  db eval {SELECT coalesce((select max(17) from t1 where  -coalesce((select t1.b+coalesce((select case when case t1.f when c then (e) else a end+t1.c+(f)>17 and e>=f and (13>t1.f) then (select ~(cast(avg(t1.e) AS integer)) | min(t1.a) from t1) when  -c>c then 19 else t1.f end from t1 where (17<t1.f)),t1.f) from t1 where not exists(select 1 from t1 where 13 not between t1.a and c)),d)*17< -t1.c),b) FROM t1 WHERE not exists(select 1 from t1 where not exists(select 1 from t1 where  -11=17*t1.d*f))}
+} {}
+do_test randexpr-2.869 {
+  db eval {SELECT coalesce((select max(17) from t1 where  -coalesce((select t1.b+coalesce((select case when case t1.f when c then (e) else a end+t1.c+(f)>17 and e>=f and (13>t1.f) then (select ~(cast(avg(t1.e) AS integer)) | min(t1.a) from t1) when  -c>c then 19 else t1.f end from t1 where (17<t1.f)),t1.f) from t1 where not exists(select 1 from t1 where 13 not between t1.a and c)),d)*17< -t1.c),b) FROM t1 WHERE NOT (not exists(select 1 from t1 where not exists(select 1 from t1 where  -11=17*t1.d*f)))}
+} {17}
+do_test randexpr-2.870 {
+  db eval {SELECT coalesce((select max(17) from t1 where  -coalesce((select t1.b+coalesce((select case when case t1.f when c then (e) else a end+t1.c+(f)>17 and e>=f and (13>t1.f) then (select ~(cast(avg(t1.e) AS integer)) & min(t1.a) from t1) when  -c>c then 19 else t1.f end from t1 where (17<t1.f)),t1.f) from t1 where not exists(select 1 from t1 where 13 not between t1.a and c)),d)*17< -t1.c),b) FROM t1 WHERE NOT (not exists(select 1 from t1 where not exists(select 1 from t1 where  -11=17*t1.d*f)))}
+} {17}
+do_test randexpr-2.871 {
+  db eval {SELECT case when a*t1.a*a in (select case (e- -11+case when ~c>=a then 13 when ((case when t1.d<t1.d then f when t1.c not between a and t1.e then  -f else t1.f end>=a)) then 19 else t1.b end-t1.f) when 19 then  - -13 else 17 end from t1 union select  -17 from t1) and 19 in (select d from t1 union select e from t1) then (select abs(min(t1.f)) from t1) else c end FROM t1 WHERE case coalesce((select 19 from t1 where 13<coalesce((select 19 | case when t1.e>=e then d when (case when not exists(select 1 from t1 where (a>d and d not between e and ((19)) and c in (e,t1.b,(b)) and e not in (t1.f,t1.a,t1.b))) then t1.b when f not between 11 and d then t1.d else d end<=11) then (abs(13)/abs(11)) else  -11 end from t1 where (t1.b)<d),b)),11) | d when c then 17 else (e) end not in (t1.e,t1.c,a)}
+} {}
+do_test randexpr-2.872 {
+  db eval {SELECT case when a*t1.a*a in (select case (e- -11+case when ~c>=a then 13 when ((case when t1.d<t1.d then f when t1.c not between a and t1.e then  -f else t1.f end>=a)) then 19 else t1.b end-t1.f) when 19 then  - -13 else 17 end from t1 union select  -17 from t1) and 19 in (select d from t1 union select e from t1) then (select abs(min(t1.f)) from t1) else c end FROM t1 WHERE NOT (case coalesce((select 19 from t1 where 13<coalesce((select 19 | case when t1.e>=e then d when (case when not exists(select 1 from t1 where (a>d and d not between e and ((19)) and c in (e,t1.b,(b)) and e not in (t1.f,t1.a,t1.b))) then t1.b when f not between 11 and d then t1.d else d end<=11) then (abs(13)/abs(11)) else  -11 end from t1 where (t1.b)<d),b)),11) | d when c then 17 else (e) end not in (t1.e,t1.c,a))}
+} {300}
+do_test randexpr-2.873 {
+  db eval {SELECT case when t1.e not between (select +max(17) from t1)*t1.f and d then t1.c+case when e+f<=coalesce((select max((19)) from t1 where t1.e not in ((abs( -17-17)/abs(t1.e)),(c),(t1.b))),d) and 13 in (select d from t1 union select c from t1) then 19 else c end-19 when exists(select 1 from t1 where t1.a in (select t1.a from t1 union select 13 from t1)) and not exists(select 1 from t1 where a<19) then b else t1.b end FROM t1 WHERE not t1.d=b}
+} {581}
+do_test randexpr-2.874 {
+  db eval {SELECT case when t1.e not between (select +max(17) from t1)*t1.f and d then t1.c+case when e+f<=coalesce((select max((19)) from t1 where t1.e not in ((abs( -17-17)/abs(t1.e)),(c),(t1.b))),d) and 13 in (select d from t1 union select c from t1) then 19 else c end-19 when exists(select 1 from t1 where t1.a in (select t1.a from t1 union select 13 from t1)) and not exists(select 1 from t1 where a<19) then b else t1.b end FROM t1 WHERE NOT (not t1.d=b)}
+} {}
+do_test randexpr-2.875 {
+  db eval {SELECT +17+(11)-coalesce((select max(case (11) when f then +e+case when +11< -13-f or b between (b) and t1.b and e<>t1.c and e not between 13 and t1.d and t1.e in (t1.d,17,t1.c) then c+t1.e*t1.d when t1.f>=t1.d then t1.a else t1.c end else t1.e end-e) from t1 where t1.b not in (t1.b,t1.d,d)), -c)*13 FROM t1 WHERE (abs(e+17)/abs((select count(distinct 11-t1.b)*cast(avg(case c when coalesce((select max(19-coalesce((select max(f) from t1 where 19 in (17,t1.f,11)),t1.d)) from t1 where c in (t1.a,11,13) and t1.a<=t1.c),t1.c) then t1.c else e end) AS integer) | max(e) | (+~case case cast(avg(t1.d) AS integer) when  -min(13) then count(*) else count(*) end when max(t1.c) then count(distinct f) else count(*) end-count(distinct 19)) from t1)))>=t1.e | f}
+} {}
+do_test randexpr-2.876 {
+  db eval {SELECT +17+(11)-coalesce((select max(case (11) when f then +e+case when +11< -13-f or b between (b) and t1.b and e<>t1.c and e not between 13 and t1.d and t1.e in (t1.d,17,t1.c) then c+t1.e*t1.d when t1.f>=t1.d then t1.a else t1.c end else t1.e end-e) from t1 where t1.b not in (t1.b,t1.d,d)), -c)*13 FROM t1 WHERE NOT ((abs(e+17)/abs((select count(distinct 11-t1.b)*cast(avg(case c when coalesce((select max(19-coalesce((select max(f) from t1 where 19 in (17,t1.f,11)),t1.d)) from t1 where c in (t1.a,11,13) and t1.a<=t1.c),t1.c) then t1.c else e end) AS integer) | max(e) | (+~case case cast(avg(t1.d) AS integer) when  -min(13) then count(*) else count(*) end when max(t1.c) then count(distinct f) else count(*) end-count(distinct 19)) from t1)))>=t1.e | f)}
+} {3928}
+do_test randexpr-2.877 {
+  db eval {SELECT case when case when d*c not in (13,a,d) then (t1.b-f)+coalesce((select max((select count(distinct 13)-case max(11) when count(*) then count(*) else min(t1.b) end*min(17)+(min(t1.c)) from t1)) from t1 where not exists(select 1 from t1 where t1.c between 17-d | d and t1.e)),b) else t1.e end<=d then e when f in (a,13,d) or t1.b between f and  -b then c else t1.a end FROM t1 WHERE t1.d<>t1.a}
+} {500}
+do_test randexpr-2.878 {
+  db eval {SELECT case when case when d*c not in (13,a,d) then (t1.b-f)+coalesce((select max((select count(distinct 13)-case max(11) when count(*) then count(*) else min(t1.b) end*min(17)+(min(t1.c)) from t1)) from t1 where not exists(select 1 from t1 where t1.c between 17-d | d and t1.e)),b) else t1.e end<=d then e when f in (a,13,d) or t1.b between f and  -b then c else t1.a end FROM t1 WHERE NOT (t1.d<>t1.a)}
+} {}
+do_test randexpr-2.879 {
+  db eval {SELECT case when case when d*c not in (13,a,d) then (t1.b-f)+coalesce((select max((select count(distinct 13)-case max(11) when count(*) then count(*) else min(t1.b) end*min(17)+(min(t1.c)) from t1)) from t1 where not exists(select 1 from t1 where t1.c between 17-d & d and t1.e)),b) else t1.e end<=d then e when f in (a,13,d) or t1.b between f and  -b then c else t1.a end FROM t1 WHERE t1.d<>t1.a}
+} {500}
+do_test randexpr-2.880 {
+  db eval {SELECT case case c when  -b then (abs(b)/abs(c)) else (select count(distinct f) | (~abs(min(c-+case 11 when case when t1.a between b and t1.e-case when (13<=b) then (select  -count(*) from t1) else a end then t1.e when e>=11 then (19) else b end then d else 17 end | e))) from t1) end when  -13 then t1.f else +17 end FROM t1 WHERE 17 in (select +(count(*) | case abs( -abs(abs( -min(d)))) | max(+11) when  -+~count(distinct  -(abs(coalesce((select max(f) from t1 where t1.e in (select e from t1 union select t1.a from t1)),f) | t1.c-t1.b)/abs(13))) | +abs(case max(b) when count(*) then  -min(t1.e) else (cast(avg(t1.f) AS integer)) end)- -count(*) then  -count(*) else max(19) end* -cast(avg(t1.b) AS integer))+(max(t1.f)) from t1 union select count(distinct b) from t1)}
+} {}
+do_test randexpr-2.881 {
+  db eval {SELECT case case c when  -b then (abs(b)/abs(c)) else (select count(distinct f) | (~abs(min(c-+case 11 when case when t1.a between b and t1.e-case when (13<=b) then (select  -count(*) from t1) else a end then t1.e when e>=11 then (19) else b end then d else 17 end | e))) from t1) end when  -13 then t1.f else +17 end FROM t1 WHERE NOT (17 in (select +(count(*) | case abs( -abs(abs( -min(d)))) | max(+11) when  -+~count(distinct  -(abs(coalesce((select max(f) from t1 where t1.e in (select e from t1 union select t1.a from t1)),f) | t1.c-t1.b)/abs(13))) | +abs(case max(b) when count(*) then  -min(t1.e) else (cast(avg(t1.f) AS integer)) end)- -count(*) then  -count(*) else max(19) end* -cast(avg(t1.b) AS integer))+(max(t1.f)) from t1 union select count(distinct b) from t1))}
+} {17}
+do_test randexpr-2.882 {
+  db eval {SELECT case case c when  -b then (abs(b)/abs(c)) else (select count(distinct f) & (~abs(min(c-+case 11 when case when t1.a between b and t1.e-case when (13<=b) then (select  -count(*) from t1) else a end then t1.e when e>=11 then (19) else b end then d else 17 end & e))) from t1) end when  -13 then t1.f else +17 end FROM t1 WHERE NOT (17 in (select +(count(*) | case abs( -abs(abs( -min(d)))) | max(+11) when  -+~count(distinct  -(abs(coalesce((select max(f) from t1 where t1.e in (select e from t1 union select t1.a from t1)),f) | t1.c-t1.b)/abs(13))) | +abs(case max(b) when count(*) then  -min(t1.e) else (cast(avg(t1.f) AS integer)) end)- -count(*) then  -count(*) else max(19) end* -cast(avg(t1.b) AS integer))+(max(t1.f)) from t1 union select count(distinct b) from t1))}
+} {17}
+do_test randexpr-2.883 {
+  db eval {SELECT case 11 when (case when t1.e in (select +cast(avg(coalesce((select max(13) from t1 where case when exists(select 1 from t1 where t1.b in ((a),d,(t1.e))) then case when 19 in (select  -max(17) from t1 union select min(t1.f) from t1) then t1.b else 17 end when a not in ((t1.f),11,t1.e) then 17 else t1.c end<t1.b),11)*a) AS integer) from t1 union select max(b) | case (+min(t1.f)) when cast(avg(a) AS integer) then count(distinct 13) else max(t1.c) end from t1) then t1.e when c<=t1.d then t1.b else t1.f end-17) then b else t1.e end FROM t1 WHERE e-case when a*b between t1.d-(abs(11)/abs(coalesce((select t1.b from t1 where not exists(select 1 from t1 where c=17) or a not between (coalesce((select t1.c from t1 where 19>(19)),c)) and c and (11 in (select t1.b from t1 union select 13 from t1) and ( -t1.d)=d)),e | 19*t1.a))) and t1.a then t1.a when 19>=t1.a then e else c end> -e}
+} {500}
+do_test randexpr-2.884 {
+  db eval {SELECT case 11 when (case when t1.e in (select +cast(avg(coalesce((select max(13) from t1 where case when exists(select 1 from t1 where t1.b in ((a),d,(t1.e))) then case when 19 in (select  -max(17) from t1 union select min(t1.f) from t1) then t1.b else 17 end when a not in ((t1.f),11,t1.e) then 17 else t1.c end<t1.b),11)*a) AS integer) from t1 union select max(b) | case (+min(t1.f)) when cast(avg(a) AS integer) then count(distinct 13) else max(t1.c) end from t1) then t1.e when c<=t1.d then t1.b else t1.f end-17) then b else t1.e end FROM t1 WHERE NOT (e-case when a*b between t1.d-(abs(11)/abs(coalesce((select t1.b from t1 where not exists(select 1 from t1 where c=17) or a not between (coalesce((select t1.c from t1 where 19>(19)),c)) and c and (11 in (select t1.b from t1 union select 13 from t1) and ( -t1.d)=d)),e | 19*t1.a))) and t1.a then t1.a when 19>=t1.a then e else c end> -e)}
+} {}
+do_test randexpr-2.885 {
+  db eval {SELECT case 11 when (case when t1.e in (select +cast(avg(coalesce((select max(13) from t1 where case when exists(select 1 from t1 where t1.b in ((a),d,(t1.e))) then case when 19 in (select  -max(17) from t1 union select min(t1.f) from t1) then t1.b else 17 end when a not in ((t1.f),11,t1.e) then 17 else t1.c end<t1.b),11)*a) AS integer) from t1 union select max(b) & case (+min(t1.f)) when cast(avg(a) AS integer) then count(distinct 13) else max(t1.c) end from t1) then t1.e when c<=t1.d then t1.b else t1.f end-17) then b else t1.e end FROM t1 WHERE e-case when a*b between t1.d-(abs(11)/abs(coalesce((select t1.b from t1 where not exists(select 1 from t1 where c=17) or a not between (coalesce((select t1.c from t1 where 19>(19)),c)) and c and (11 in (select t1.b from t1 union select 13 from t1) and ( -t1.d)=d)),e | 19*t1.a))) and t1.a then t1.a when 19>=t1.a then e else c end> -e}
+} {500}
+do_test randexpr-2.886 {
+  db eval {SELECT case a*t1.a when ~++a*(abs(e)/abs(19)) | t1.d+(select count(*) from t1) then b else t1.a end*coalesce((select max(f) from t1 where f<>t1.d),b) FROM t1 WHERE (abs(c-~t1.b)/abs(d))-((+coalesce((select max(c) from t1 where  -+(select ~ -(cast(avg((13+case 11*t1.c when t1.b then f else ~e-coalesce((select max((f)) from t1 where t1.f<a), -t1.c-(t1.c)) end)) AS integer)) from t1)=d*a),t1.d)+a))* -t1.e=t1.f}
+} {}
+do_test randexpr-2.887 {
+  db eval {SELECT case a*t1.a when ~++a*(abs(e)/abs(19)) | t1.d+(select count(*) from t1) then b else t1.a end*coalesce((select max(f) from t1 where f<>t1.d),b) FROM t1 WHERE NOT ((abs(c-~t1.b)/abs(d))-((+coalesce((select max(c) from t1 where  -+(select ~ -(cast(avg((13+case 11*t1.c when t1.b then f else ~e-coalesce((select max((f)) from t1 where t1.f<a), -t1.c-(t1.c)) end)) AS integer)) from t1)=d*a),t1.d)+a))* -t1.e=t1.f)}
+} {60000}
+do_test randexpr-2.888 {
+  db eval {SELECT case a*t1.a when ~++a*(abs(e)/abs(19)) & t1.d+(select count(*) from t1) then b else t1.a end*coalesce((select max(f) from t1 where f<>t1.d),b) FROM t1 WHERE NOT ((abs(c-~t1.b)/abs(d))-((+coalesce((select max(c) from t1 where  -+(select ~ -(cast(avg((13+case 11*t1.c when t1.b then f else ~e-coalesce((select max((f)) from t1 where t1.f<a), -t1.c-(t1.c)) end)) AS integer)) from t1)=d*a),t1.d)+a))* -t1.e=t1.f)}
+} {60000}
+do_test randexpr-2.889 {
+  db eval {SELECT t1.c-t1.f-coalesce((select max(a) from t1 where e in ((abs(a)/abs(t1.d))*coalesce((select max((abs(case when e>=+t1.b then f when t1.c+f<a or e<>13 then t1.d else t1.a end)/abs(t1.d))) from t1 where t1.c not between t1.c and 11 and e>d),f)*t1.e+d,a,13)),e) | t1.b FROM t1 WHERE (abs(+(+t1.a)+case a-case when c>=d then 13 when t1.c not in (17,17,e) then a else t1.d end when c then  -f else b end*d)/abs(17))<=11 and 11 in (select cast(avg(17) AS integer) from t1 union select min( -19)+(case max(a) when abs(count(*)) then  -abs(count(*)*min(t1.e)+max(11)) else min(c) end) from t1)}
+} {}
+do_test randexpr-2.890 {
+  db eval {SELECT t1.c-t1.f-coalesce((select max(a) from t1 where e in ((abs(a)/abs(t1.d))*coalesce((select max((abs(case when e>=+t1.b then f when t1.c+f<a or e<>13 then t1.d else t1.a end)/abs(t1.d))) from t1 where t1.c not between t1.c and 11 and e>d),f)*t1.e+d,a,13)),e) | t1.b FROM t1 WHERE NOT ((abs(+(+t1.a)+case a-case when c>=d then 13 when t1.c not in (17,17,e) then a else t1.d end when c then  -f else b end*d)/abs(17))<=11 and 11 in (select cast(avg(17) AS integer) from t1 union select min( -19)+(case max(a) when abs(count(*)) then  -abs(count(*)*min(t1.e)+max(11)) else min(c) end) from t1))}
+} {-792}
+do_test randexpr-2.891 {
+  db eval {SELECT t1.c-t1.f-coalesce((select max(a) from t1 where e in ((abs(a)/abs(t1.d))*coalesce((select max((abs(case when e>=+t1.b then f when t1.c+f<a or e<>13 then t1.d else t1.a end)/abs(t1.d))) from t1 where t1.c not between t1.c and 11 and e>d),f)*t1.e+d,a,13)),e) & t1.b FROM t1 WHERE NOT ((abs(+(+t1.a)+case a-case when c>=d then 13 when t1.c not in (17,17,e) then a else t1.d end when c then  -f else b end*d)/abs(17))<=11 and 11 in (select cast(avg(17) AS integer) from t1 union select min( -19)+(case max(a) when abs(count(*)) then  -abs(count(*)*min(t1.e)+max(11)) else min(c) end) from t1))}
+} {192}
+do_test randexpr-2.892 {
+  db eval {SELECT coalesce((select (select count(*) from t1)*a*b from t1 where ((~b*a-t1.d+11*e-(select  -count(*) | count(*) | count(*) from t1)*(select min((abs(coalesce((select max(t1.c) from t1 where not exists(select 1 from t1 where  -17 in (t1.b,t1.f,t1.d))),11))/abs(t1.d))) from t1)-17+(abs(11)/abs(11)) | b+d | 11 in (select t1.a from t1 union select 13 from t1)))),t1.a) FROM t1 WHERE f>case when f-case when not exists(select 1 from t1 where case when b in (select abs(max(coalesce((select max(~t1.c) from t1 where t1.f<=13),17))) from t1 union select cast(avg(t1.c) AS integer) from t1) then t1.e else (13) end> -t1.e) or d<>19 then coalesce((select max((select abs(max(d)+cast(avg(d) AS integer)) from t1)) from t1 where t1.e<t1.c),19) when  -t1.c in (t1.e,t1.f,e) then 11 else t1.a end<>19 then b when t1.a<=11 then 11 else t1.d end}
+} {100}
+do_test randexpr-2.893 {
+  db eval {SELECT coalesce((select (select count(*) from t1)*a*b from t1 where ((~b*a-t1.d+11*e-(select  -count(*) | count(*) | count(*) from t1)*(select min((abs(coalesce((select max(t1.c) from t1 where not exists(select 1 from t1 where  -17 in (t1.b,t1.f,t1.d))),11))/abs(t1.d))) from t1)-17+(abs(11)/abs(11)) | b+d | 11 in (select t1.a from t1 union select 13 from t1)))),t1.a) FROM t1 WHERE NOT (f>case when f-case when not exists(select 1 from t1 where case when b in (select abs(max(coalesce((select max(~t1.c) from t1 where t1.f<=13),17))) from t1 union select cast(avg(t1.c) AS integer) from t1) then t1.e else (13) end> -t1.e) or d<>19 then coalesce((select max((select abs(max(d)+cast(avg(d) AS integer)) from t1)) from t1 where t1.e<t1.c),19) when  -t1.c in (t1.e,t1.f,e) then 11 else t1.a end<>19 then b when t1.a<=11 then 11 else t1.d end)}
+} {}
+do_test randexpr-2.894 {
+  db eval {SELECT coalesce((select (select count(*) from t1)*a*b from t1 where ((~b*a-t1.d+11*e-(select  -count(*) & count(*) & count(*) from t1)*(select min((abs(coalesce((select max(t1.c) from t1 where not exists(select 1 from t1 where  -17 in (t1.b,t1.f,t1.d))),11))/abs(t1.d))) from t1)-17+(abs(11)/abs(11)) & b+d & 11 in (select t1.a from t1 union select 13 from t1)))),t1.a) FROM t1 WHERE f>case when f-case when not exists(select 1 from t1 where case when b in (select abs(max(coalesce((select max(~t1.c) from t1 where t1.f<=13),17))) from t1 union select cast(avg(t1.c) AS integer) from t1) then t1.e else (13) end> -t1.e) or d<>19 then coalesce((select max((select abs(max(d)+cast(avg(d) AS integer)) from t1)) from t1 where t1.e<t1.c),19) when  -t1.c in (t1.e,t1.f,e) then 11 else t1.a end<>19 then b when t1.a<=11 then 11 else t1.d end}
+} {100}
+do_test randexpr-2.895 {
+  db eval {SELECT coalesce((select e from t1 where ((abs((select case (~max(f) | ~max(19-t1.d) | cast(avg(11) AS integer)) when min(+t1.d*c) then max(case when 19+13 not between 13 and t1.c or t1.c not in ((b),11,(e)) then d else t1.d end+ -t1.d) else min(a) end from t1))/abs(11)))<17),t1.b)+17 FROM t1 WHERE (13 in (a,t1.a,~+(e)+t1.c*t1.c | t1.c- -t1.b-t1.b+e*b | t1.e-t1.e-e*coalesce((select max(t1.b) from t1 where t1.a*d<>coalesce((select max(t1.e-t1.b) from t1 where exists(select 1 from t1 where coalesce((select e from t1 where (17 not between 13 and t1.c)),t1.c)>=t1.c)),b)),t1.f)+17))}
+} {}
+do_test randexpr-2.896 {
+  db eval {SELECT coalesce((select e from t1 where ((abs((select case (~max(f) | ~max(19-t1.d) | cast(avg(11) AS integer)) when min(+t1.d*c) then max(case when 19+13 not between 13 and t1.c or t1.c not in ((b),11,(e)) then d else t1.d end+ -t1.d) else min(a) end from t1))/abs(11)))<17),t1.b)+17 FROM t1 WHERE NOT ((13 in (a,t1.a,~+(e)+t1.c*t1.c | t1.c- -t1.b-t1.b+e*b | t1.e-t1.e-e*coalesce((select max(t1.b) from t1 where t1.a*d<>coalesce((select max(t1.e-t1.b) from t1 where exists(select 1 from t1 where coalesce((select e from t1 where (17 not between 13 and t1.c)),t1.c)>=t1.c)),b)),t1.f)+17)))}
+} {517}
+do_test randexpr-2.897 {
+  db eval {SELECT coalesce((select e from t1 where ((abs((select case (~max(f) & ~max(19-t1.d) & cast(avg(11) AS integer)) when min(+t1.d*c) then max(case when 19+13 not between 13 and t1.c or t1.c not in ((b),11,(e)) then d else t1.d end+ -t1.d) else min(a) end from t1))/abs(11)))<17),t1.b)+17 FROM t1 WHERE NOT ((13 in (a,t1.a,~+(e)+t1.c*t1.c | t1.c- -t1.b-t1.b+e*b | t1.e-t1.e-e*coalesce((select max(t1.b) from t1 where t1.a*d<>coalesce((select max(t1.e-t1.b) from t1 where exists(select 1 from t1 where coalesce((select e from t1 where (17 not between 13 and t1.c)),t1.c)>=t1.c)),b)),t1.f)+17)))}
+} {517}
+do_test randexpr-2.898 {
+  db eval {SELECT c | coalesce((select max(~b*case +coalesce((select max( -(abs(c)/abs(11))+case when t1.c*17 not in (a,a,c) then t1.e when t1.b in (select 13 from t1 union select (c) from t1) then  -(t1.c) else d end* -t1.c+a) from t1 where t1.f>=11),17) | t1.b when t1.b then c else t1.a end) from t1 where t1.f>t1.a),t1.c)+13*17 FROM t1 WHERE t1.e<t1.c*(select min((select count(*) from t1)) from t1)*f}
+} {-19587}
+do_test randexpr-2.899 {
+  db eval {SELECT c | coalesce((select max(~b*case +coalesce((select max( -(abs(c)/abs(11))+case when t1.c*17 not in (a,a,c) then t1.e when t1.b in (select 13 from t1 union select (c) from t1) then  -(t1.c) else d end* -t1.c+a) from t1 where t1.f>=11),17) | t1.b when t1.b then c else t1.a end) from t1 where t1.f>t1.a),t1.c)+13*17 FROM t1 WHERE NOT (t1.e<t1.c*(select min((select count(*) from t1)) from t1)*f)}
+} {}
+do_test randexpr-2.900 {
+  db eval {SELECT c & coalesce((select max(~b*case +coalesce((select max( -(abs(c)/abs(11))+case when t1.c*17 not in (a,a,c) then t1.e when t1.b in (select 13 from t1 union select (c) from t1) then  -(t1.c) else d end* -t1.c+a) from t1 where t1.f>=11),17) & t1.b when t1.b then c else t1.a end) from t1 where t1.f>t1.a),t1.c)+13*17 FROM t1 WHERE t1.e<t1.c*(select min((select count(*) from t1)) from t1)*f}
+} {8}
+do_test randexpr-2.901 {
+  db eval {SELECT coalesce((select max(a) from t1 where t1.b<t1.b),13 |  -(coalesce((select max((abs(~t1.a | (abs(11)/abs((abs(t1.e)/abs(coalesce((select max(t1.e) from t1 where not exists(select 1 from t1 where exists(select 1 from t1 where (t1.d)<>e) and not exists(select 1 from t1 where (19)=t1.e))),19*t1.e)-t1.c)) | 17))*t1.b)/abs(17))) from t1 where (t1.b) between d and t1.b),t1.c)) | t1.f-c-d) FROM t1 WHERE 13 not in (f,t1.c+11*c,coalesce((select e from t1 where case t1.b when c- -case (select cast(avg(+t1.c*t1.f) AS integer) from t1) when 13*case when not case when  -17 in (select (t1.c) from t1 union select t1.c from t1) or t1.f in (t1.b,t1.d,t1.b) then t1.a when 11<>t1.c then e else a end>=(11) and a=d or  -t1.f between c and b then e else t1.f end then 19 else t1.d end then t1.c else t1.b end<>13),d))}
+} {-35}
+do_test randexpr-2.902 {
+  db eval {SELECT coalesce((select max(a) from t1 where t1.b<t1.b),13 |  -(coalesce((select max((abs(~t1.a | (abs(11)/abs((abs(t1.e)/abs(coalesce((select max(t1.e) from t1 where not exists(select 1 from t1 where exists(select 1 from t1 where (t1.d)<>e) and not exists(select 1 from t1 where (19)=t1.e))),19*t1.e)-t1.c)) | 17))*t1.b)/abs(17))) from t1 where (t1.b) between d and t1.b),t1.c)) | t1.f-c-d) FROM t1 WHERE NOT (13 not in (f,t1.c+11*c,coalesce((select e from t1 where case t1.b when c- -case (select cast(avg(+t1.c*t1.f) AS integer) from t1) when 13*case when not case when  -17 in (select (t1.c) from t1 union select t1.c from t1) or t1.f in (t1.b,t1.d,t1.b) then t1.a when 11<>t1.c then e else a end>=(11) and a=d or  -t1.f between c and b then e else t1.f end then 19 else t1.d end then t1.c else t1.b end<>13),d)))}
+} {}
+do_test randexpr-2.903 {
+  db eval {SELECT f+b+(t1.a+c)+(case when (select (cast(avg(coalesce((select max(t1.b) from t1 where case  -(select +cast(avg(b-t1.e) AS integer)-abs(cast(avg(~(abs(f)/abs(f))) AS integer)) from t1)+d when 11 then d else 13 end+t1.e<>t1.e),(t1.e))-13+13) AS integer)) from t1)-t1.b<>a then t1.e else e end) FROM t1 WHERE c in (select abs((max(t1.d))) from t1 union select count(*) from t1) and (coalesce((select max(+ -(t1.f-d)* -b) from t1 where not exists(select 1 from t1 where (b not in (coalesce((select t1.e-a from t1 where not t1.a between 13 and f or t1.b in (t1.e,e,17)),11),17,t1.a) and (b<>d)))),b) in (select  -min(17) from t1 union select abs(max(e)) from t1))}
+} {}
+do_test randexpr-2.904 {
+  db eval {SELECT f+b+(t1.a+c)+(case when (select (cast(avg(coalesce((select max(t1.b) from t1 where case  -(select +cast(avg(b-t1.e) AS integer)-abs(cast(avg(~(abs(f)/abs(f))) AS integer)) from t1)+d when 11 then d else 13 end+t1.e<>t1.e),(t1.e))-13+13) AS integer)) from t1)-t1.b<>a then t1.e else e end) FROM t1 WHERE NOT (c in (select abs((max(t1.d))) from t1 union select count(*) from t1) and (coalesce((select max(+ -(t1.f-d)* -b) from t1 where not exists(select 1 from t1 where (b not in (coalesce((select t1.e-a from t1 where not t1.a between 13 and f or t1.b in (t1.e,e,17)),11),17,t1.a) and (b<>d)))),b) in (select  -min(17) from t1 union select abs(max(e)) from t1)))}
+} {1700}
+do_test randexpr-2.905 {
+  db eval {SELECT case when case when not exists(select 1 from t1 where not exists(select 1 from t1 where (case when (select  -min(t1.e) from t1) in (select f from t1 union select d from t1) then +e else d end | t1.e not between t1.a and t1.b))) and not exists(select 1 from t1 where a>=t1.e) and b=e then 13 else coalesce((select 19 from t1 where t1.d>=t1.e),13) end<11*t1.b then 17 when 17 in (19,t1.e, -t1.c) or 17<f then t1.d else t1.b end FROM t1 WHERE exists(select 1 from t1 where f<=19)}
+} {}
+do_test randexpr-2.906 {
+  db eval {SELECT case when case when not exists(select 1 from t1 where not exists(select 1 from t1 where (case when (select  -min(t1.e) from t1) in (select f from t1 union select d from t1) then +e else d end | t1.e not between t1.a and t1.b))) and not exists(select 1 from t1 where a>=t1.e) and b=e then 13 else coalesce((select 19 from t1 where t1.d>=t1.e),13) end<11*t1.b then 17 when 17 in (19,t1.e, -t1.c) or 17<f then t1.d else t1.b end FROM t1 WHERE NOT (exists(select 1 from t1 where f<=19))}
+} {17}
+do_test randexpr-2.907 {
+  db eval {SELECT case when case when not exists(select 1 from t1 where not exists(select 1 from t1 where (case when (select  -min(t1.e) from t1) in (select f from t1 union select d from t1) then +e else d end & t1.e not between t1.a and t1.b))) and not exists(select 1 from t1 where a>=t1.e) and b=e then 13 else coalesce((select 19 from t1 where t1.d>=t1.e),13) end<11*t1.b then 17 when 17 in (19,t1.e, -t1.c) or 17<f then t1.d else t1.b end FROM t1 WHERE NOT (exists(select 1 from t1 where f<=19))}
+} {17}
+do_test randexpr-2.908 {
+  db eval {SELECT 11*t1.c* -case when t1.d<=t1.c then case when case case +t1.b-case when exists(select 1 from t1 where (exists(select 1 from t1 where t1.e not in (t1.a,a,11)))) then (abs((select case count(distinct d) when cast(avg(19) AS integer) then  -min(t1.a) else (cast(avg(f) AS integer)) end from t1))/abs(b)) when t1.c<>t1.a then c else 19 end when t1.c then e else t1.d end when 17 then t1.d else  -d end between e and t1.e then 13 when (13<>13) then t1.c else 17 end when exists(select 1 from t1 where (t1.c between b and 11)) then e else f end FROM t1 WHERE ~a* -b+11-case when coalesce((select max(case when (t1.c in (case t1.b when t1.c then 13 else 17 end,17,19)) then case e when a then c else 13 end else c end) from t1 where a between b and t1.c),t1.a)=c or (17>d) then case when f= -t1.a then t1.b when (t1.d)<t1.e then (f) else t1.e end else c end+d<a}
+} {}
+do_test randexpr-2.909 {
+  db eval {SELECT 11*t1.c* -case when t1.d<=t1.c then case when case case +t1.b-case when exists(select 1 from t1 where (exists(select 1 from t1 where t1.e not in (t1.a,a,11)))) then (abs((select case count(distinct d) when cast(avg(19) AS integer) then  -min(t1.a) else (cast(avg(f) AS integer)) end from t1))/abs(b)) when t1.c<>t1.a then c else 19 end when t1.c then e else t1.d end when 17 then t1.d else  -d end between e and t1.e then 13 when (13<>13) then t1.c else 17 end when exists(select 1 from t1 where (t1.c between b and 11)) then e else f end FROM t1 WHERE NOT (~a* -b+11-case when coalesce((select max(case when (t1.c in (case t1.b when t1.c then 13 else 17 end,17,19)) then case e when a then c else 13 end else c end) from t1 where a between b and t1.c),t1.a)=c or (17>d) then case when f= -t1.a then t1.b when (t1.d)<t1.e then (f) else t1.e end else c end+d<a)}
+} {-1980000}
+do_test randexpr-2.910 {
+  db eval {SELECT +case when e in (13, -b,11) then d else coalesce((select max(13 | d | d+19+(abs(case when (19) between (abs(case f when t1.f then (13) else 17 end)/abs(a)) and d then 19 when (not exists(select 1 from t1 where t1.a>=t1.f)) and t1.f>t1.a or e<>c then 17 else d end)/abs(a))) from t1 where exists(select 1 from t1 where not exists(select 1 from t1 where (t1.f) in (t1.c,(t1.e),17)))),t1.a) end+e FROM t1 WHERE exists(select 1 from t1 where 17>(case coalesce((select max((abs(+t1.f-case when 11=(abs((select count(*) from t1)-13*13)/abs(t1.d)) then coalesce((select max(t1.c) from t1 where 19 in (select ((max(19))) from t1 union select min(t1.d) from t1) or  -t1.a=t1.a and f<17),t1.e-d) when not exists(select 1 from t1 where t1.b not between (d) and  -t1.f) then 11 else t1.a end)/abs(t1.a))) from t1 where t1.e not in ((f),11,t1.f)),t1.c) when b then  -t1.a else 13 end)-t1.c)}
+} {947}
+do_test randexpr-2.911 {
+  db eval {SELECT +case when e in (13, -b,11) then d else coalesce((select max(13 | d | d+19+(abs(case when (19) between (abs(case f when t1.f then (13) else 17 end)/abs(a)) and d then 19 when (not exists(select 1 from t1 where t1.a>=t1.f)) and t1.f>t1.a or e<>c then 17 else d end)/abs(a))) from t1 where exists(select 1 from t1 where not exists(select 1 from t1 where (t1.f) in (t1.c,(t1.e),17)))),t1.a) end+e FROM t1 WHERE NOT (exists(select 1 from t1 where 17>(case coalesce((select max((abs(+t1.f-case when 11=(abs((select count(*) from t1)-13*13)/abs(t1.d)) then coalesce((select max(t1.c) from t1 where 19 in (select ((max(19))) from t1 union select min(t1.d) from t1) or  -t1.a=t1.a and f<17),t1.e-d) when not exists(select 1 from t1 where t1.b not between (d) and  -t1.f) then 11 else t1.a end)/abs(t1.a))) from t1 where t1.e not in ((f),11,t1.f)),t1.c) when b then  -t1.a else 13 end)-t1.c))}
+} {}
+do_test randexpr-2.912 {
+  db eval {SELECT +case when e in (13, -b,11) then d else coalesce((select max(13 & d & d+19+(abs(case when (19) between (abs(case f when t1.f then (13) else 17 end)/abs(a)) and d then 19 when (not exists(select 1 from t1 where t1.a>=t1.f)) and t1.f>t1.a or e<>c then 17 else d end)/abs(a))) from t1 where exists(select 1 from t1 where not exists(select 1 from t1 where (t1.f) in (t1.c,(t1.e),17)))),t1.a) end+e FROM t1 WHERE exists(select 1 from t1 where 17>(case coalesce((select max((abs(+t1.f-case when 11=(abs((select count(*) from t1)-13*13)/abs(t1.d)) then coalesce((select max(t1.c) from t1 where 19 in (select ((max(19))) from t1 union select min(t1.d) from t1) or  -t1.a=t1.a and f<17),t1.e-d) when not exists(select 1 from t1 where t1.b not between (d) and  -t1.f) then 11 else t1.a end)/abs(t1.a))) from t1 where t1.e not in ((f),11,t1.f)),t1.c) when b then  -t1.a else 13 end)-t1.c)}
+} {500}
+do_test randexpr-2.913 {
+  db eval {SELECT (13*case when exists(select 1 from t1 where exists(select 1 from t1 where coalesce((select max(b) from t1 where t1.b=e),a)<(b-a)+13)) then 11 else t1.e end*coalesce((select 17 from t1 where not ((select cast(avg(13) AS integer) from t1)< -t1.c) and 17 between 13 and 13),case when f<c then b when t1.c<t1.a then  -d else e end)*d+b)+ - -t1.b+11 FROM t1 WHERE not exists(select 1 from t1 where b>=case when exists(select 1 from t1 where (13 in ( -(b)*(select count(*)* -cast(avg(case t1.e when t1.b then (f)-f-f else e end) AS integer)*cast(avg(17) AS integer) | cast(avg((17)) AS integer) | min(d) | count(distinct e) from t1),19+(abs(19)/abs(17))*f,t1.b))) then 11 when 17>t1.f then +a else t1.d end)}
+} {28600411}
+do_test randexpr-2.914 {
+  db eval {SELECT (13*case when exists(select 1 from t1 where exists(select 1 from t1 where coalesce((select max(b) from t1 where t1.b=e),a)<(b-a)+13)) then 11 else t1.e end*coalesce((select 17 from t1 where not ((select cast(avg(13) AS integer) from t1)< -t1.c) and 17 between 13 and 13),case when f<c then b when t1.c<t1.a then  -d else e end)*d+b)+ - -t1.b+11 FROM t1 WHERE NOT (not exists(select 1 from t1 where b>=case when exists(select 1 from t1 where (13 in ( -(b)*(select count(*)* -cast(avg(case t1.e when t1.b then (f)-f-f else e end) AS integer)*cast(avg(17) AS integer) | cast(avg((17)) AS integer) | min(d) | count(distinct e) from t1),19+(abs(19)/abs(17))*f,t1.b))) then 11 when 17>t1.f then +a else t1.d end))}
+} {}
+do_test randexpr-2.915 {
+  db eval {SELECT case when +11 | (select min(case 13+a when e then d else 17-t1.b-~b*a end) from t1)-f*t1.f=(coalesce((select e from t1 where a<=f and not exists(select 1 from t1 where d-case 19 when 11 then (b) else t1.e end not between  -t1.a and (t1.c))),e)) then t1.e when  -17>=d then t1.f else t1.b end*t1.a FROM t1 WHERE e<=19}
+} {}
+do_test randexpr-2.916 {
+  db eval {SELECT case when +11 | (select min(case 13+a when e then d else 17-t1.b-~b*a end) from t1)-f*t1.f=(coalesce((select e from t1 where a<=f and not exists(select 1 from t1 where d-case 19 when 11 then (b) else t1.e end not between  -t1.a and (t1.c))),e)) then t1.e when  -17>=d then t1.f else t1.b end*t1.a FROM t1 WHERE NOT (e<=19)}
+} {20000}
+do_test randexpr-2.917 {
+  db eval {SELECT case when +11 & (select min(case 13+a when e then d else 17-t1.b-~b*a end) from t1)-f*t1.f=(coalesce((select e from t1 where a<=f and not exists(select 1 from t1 where d-case 19 when 11 then (b) else t1.e end not between  -t1.a and (t1.c))),e)) then t1.e when  -17>=d then t1.f else t1.b end*t1.a FROM t1 WHERE NOT (e<=19)}
+} {20000}
+do_test randexpr-2.918 {
+  db eval {SELECT 11-coalesce((select max(coalesce((select max((select abs(case +max((e)) when abs(abs( -count(distinct e))) then +cast(avg(f) AS integer) else count(*) end+count(*)+min( -e)) from t1)) from t1 where t1.b in (select count(distinct (17 | case case when e in (13,t1.a,e) or t1.d>=t1.e then 17 else a end when t1.e then 17 else t1.d end*t1.c)) from t1 union select cast(avg(t1.a) AS integer) from t1)),17)) from t1 where t1.c in (select ~cast(avg(t1.b) AS integer) from t1 union select  -(cast(avg(t1.c) AS integer)) from t1)),(t1.c)) FROM t1 WHERE t1.b not in (case when 11 in (select case +min(t1.f) when (+cast(avg((case t1.c when a then f else a end-f)) AS integer)) then +count(distinct (t1.f))-count(distinct t1.f) else count(*) end-count(*) | count(*) from t1 union select min(e) from t1) then (abs(b | 13-f | c)/abs(t1.f)) else t1.c end,f,t1.b) or not  -t1.a<t1.f or t1.f>=11}
+} {-289}
+do_test randexpr-2.919 {
+  db eval {SELECT 11-coalesce((select max(coalesce((select max((select abs(case +max((e)) when abs(abs( -count(distinct e))) then +cast(avg(f) AS integer) else count(*) end+count(*)+min( -e)) from t1)) from t1 where t1.b in (select count(distinct (17 | case case when e in (13,t1.a,e) or t1.d>=t1.e then 17 else a end when t1.e then 17 else t1.d end*t1.c)) from t1 union select cast(avg(t1.a) AS integer) from t1)),17)) from t1 where t1.c in (select ~cast(avg(t1.b) AS integer) from t1 union select  -(cast(avg(t1.c) AS integer)) from t1)),(t1.c)) FROM t1 WHERE NOT (t1.b not in (case when 11 in (select case +min(t1.f) when (+cast(avg((case t1.c when a then f else a end-f)) AS integer)) then +count(distinct (t1.f))-count(distinct t1.f) else count(*) end-count(*) | count(*) from t1 union select min(e) from t1) then (abs(b | 13-f | c)/abs(t1.f)) else t1.c end,f,t1.b) or not  -t1.a<t1.f or t1.f>=11)}
+} {}
+do_test randexpr-2.920 {
+  db eval {SELECT 11-coalesce((select max(coalesce((select max((select abs(case +max((e)) when abs(abs( -count(distinct e))) then +cast(avg(f) AS integer) else count(*) end+count(*)+min( -e)) from t1)) from t1 where t1.b in (select count(distinct (17 & case case when e in (13,t1.a,e) or t1.d>=t1.e then 17 else a end when t1.e then 17 else t1.d end*t1.c)) from t1 union select cast(avg(t1.a) AS integer) from t1)),17)) from t1 where t1.c in (select ~cast(avg(t1.b) AS integer) from t1 union select  -(cast(avg(t1.c) AS integer)) from t1)),(t1.c)) FROM t1 WHERE t1.b not in (case when 11 in (select case +min(t1.f) when (+cast(avg((case t1.c when a then f else a end-f)) AS integer)) then +count(distinct (t1.f))-count(distinct t1.f) else count(*) end-count(*) | count(*) from t1 union select min(e) from t1) then (abs(b | 13-f | c)/abs(t1.f)) else t1.c end,f,t1.b) or not  -t1.a<t1.f or t1.f>=11}
+} {-289}
+do_test randexpr-2.921 {
+  db eval {SELECT (select  -abs(max(+(select +count(*) from t1)))-max(case when b in (select (abs(13)/abs(b)) from t1 union select case when exists(select 1 from t1 where not exists(select 1 from t1 where (abs(17)/abs(coalesce((select max(+19*t1.e+case t1.f when (abs(f)/abs(t1.f)) then t1.f else e end) from t1 where 19<17),t1.a)))+11 in (select b from t1 union select t1.e from t1))) then d else t1.c end from t1) then f when 13=d then  -a else t1.a end) from t1) FROM t1 WHERE ~(select ~ -(min(f)- -cast(avg(f) AS integer)-abs(count(distinct case when t1.d=b then d when e in (select +cast(avg(e) AS integer) from t1 union select count(*) from t1) then t1.f else c end*17*f))) | (count(*)) from t1)-f<>case when (select + -max(t1.e) from t1)+(select  -min(17) from t1)*13 between 17 and 19 then t1.b else t1.d end}
+} {-101}
+do_test randexpr-2.922 {
+  db eval {SELECT (select  -abs(max(+(select +count(*) from t1)))-max(case when b in (select (abs(13)/abs(b)) from t1 union select case when exists(select 1 from t1 where not exists(select 1 from t1 where (abs(17)/abs(coalesce((select max(+19*t1.e+case t1.f when (abs(f)/abs(t1.f)) then t1.f else e end) from t1 where 19<17),t1.a)))+11 in (select b from t1 union select t1.e from t1))) then d else t1.c end from t1) then f when 13=d then  -a else t1.a end) from t1) FROM t1 WHERE NOT (~(select ~ -(min(f)- -cast(avg(f) AS integer)-abs(count(distinct case when t1.d=b then d when e in (select +cast(avg(e) AS integer) from t1 union select count(*) from t1) then t1.f else c end*17*f))) | (count(*)) from t1)-f<>case when (select + -max(t1.e) from t1)+(select  -min(17) from t1)*13 between 17 and 19 then t1.b else t1.d end)}
+} {}
+do_test randexpr-2.923 {
+  db eval {SELECT case (select ( - - -(+max(c))+min(e)-(count(*))+cast(avg(t1.e) AS integer)-min(t1.a)*(cast(avg(11) AS integer))) from t1) when t1.d then t1.c else case (select max(a) from t1) when  -t1.b then case when not 17<>case when t1.e<=t1.d or ((t1.e))=t1.e then t1.f when e>=t1.b then 11 else t1.d end or d in (t1.f,t1.a,t1.a) then c | 17 when t1.f between t1.a and  -t1.e then d else t1.c end else t1.c end end-t1.c FROM t1 WHERE not (exists(select 1 from t1 where a<>11+t1.d-t1.a+(select count(distinct t1.d)++max(case e when coalesce((select 11 from t1 where a>=case when coalesce((select f from t1 where exists(select 1 from t1 where 13 in (t1.c,13,t1.a))),(d))+f not between d and t1.e then d else (t1.c) end-13),(d))-t1.d then t1.a else 17 end) from t1)) and not a<(d)*19)}
+} {0}
+do_test randexpr-2.924 {
+  db eval {SELECT case (select ( - - -(+max(c))+min(e)-(count(*))+cast(avg(t1.e) AS integer)-min(t1.a)*(cast(avg(11) AS integer))) from t1) when t1.d then t1.c else case (select max(a) from t1) when  -t1.b then case when not 17<>case when t1.e<=t1.d or ((t1.e))=t1.e then t1.f when e>=t1.b then 11 else t1.d end or d in (t1.f,t1.a,t1.a) then c | 17 when t1.f between t1.a and  -t1.e then d else t1.c end else t1.c end end-t1.c FROM t1 WHERE NOT (not (exists(select 1 from t1 where a<>11+t1.d-t1.a+(select count(distinct t1.d)++max(case e when coalesce((select 11 from t1 where a>=case when coalesce((select f from t1 where exists(select 1 from t1 where 13 in (t1.c,13,t1.a))),(d))+f not between d and t1.e then d else (t1.c) end-13),(d))-t1.d then t1.a else 17 end) from t1)) and not a<(d)*19))}
+} {}
+do_test randexpr-2.925 {
+  db eval {SELECT case (select ( - - -(+max(c))+min(e)-(count(*))+cast(avg(t1.e) AS integer)-min(t1.a)*(cast(avg(11) AS integer))) from t1) when t1.d then t1.c else case (select max(a) from t1) when  -t1.b then case when not 17<>case when t1.e<=t1.d or ((t1.e))=t1.e then t1.f when e>=t1.b then 11 else t1.d end or d in (t1.f,t1.a,t1.a) then c & 17 when t1.f between t1.a and  -t1.e then d else t1.c end else t1.c end end-t1.c FROM t1 WHERE not (exists(select 1 from t1 where a<>11+t1.d-t1.a+(select count(distinct t1.d)++max(case e when coalesce((select 11 from t1 where a>=case when coalesce((select f from t1 where exists(select 1 from t1 where 13 in (t1.c,13,t1.a))),(d))+f not between d and t1.e then d else (t1.c) end-13),(d))-t1.d then t1.a else 17 end) from t1)) and not a<(d)*19)}
+} {0}
+do_test randexpr-2.926 {
+  db eval {SELECT case t1.b when c*(case when ((select ++case abs(cast(avg(a) AS integer))*min(c) when min(t1.c) then cast(avg(t1.b) AS integer) else count(*) end | (count(distinct t1.c)) | ((max(t1.a))) | count(distinct b) from t1) not between t1.e and 11 and coalesce((select max(e) from t1 where a between t1.c and c+b),e) in (select t1.d from t1 union select t1.b from t1) or (not exists(select 1 from t1 where 13<>t1.a))) then 11*b else t1.b end) then t1.c else e end FROM t1 WHERE exists(select 1 from t1 where t1.d>=f)}
+} {}
+do_test randexpr-2.927 {
+  db eval {SELECT case t1.b when c*(case when ((select ++case abs(cast(avg(a) AS integer))*min(c) when min(t1.c) then cast(avg(t1.b) AS integer) else count(*) end | (count(distinct t1.c)) | ((max(t1.a))) | count(distinct b) from t1) not between t1.e and 11 and coalesce((select max(e) from t1 where a between t1.c and c+b),e) in (select t1.d from t1 union select t1.b from t1) or (not exists(select 1 from t1 where 13<>t1.a))) then 11*b else t1.b end) then t1.c else e end FROM t1 WHERE NOT (exists(select 1 from t1 where t1.d>=f))}
+} {500}
+do_test randexpr-2.928 {
+  db eval {SELECT case t1.b when c*(case when ((select ++case abs(cast(avg(a) AS integer))*min(c) when min(t1.c) then cast(avg(t1.b) AS integer) else count(*) end & (count(distinct t1.c)) & ((max(t1.a))) & count(distinct b) from t1) not between t1.e and 11 and coalesce((select max(e) from t1 where a between t1.c and c+b),e) in (select t1.d from t1 union select t1.b from t1) or (not exists(select 1 from t1 where 13<>t1.a))) then 11*b else t1.b end) then t1.c else e end FROM t1 WHERE NOT (exists(select 1 from t1 where t1.d>=f))}
+} {500}
+do_test randexpr-2.929 {
+  db eval {SELECT d-coalesce((select d from t1 where case when ~11*a*c>=17 then coalesce((select (abs(t1.e+c+(abs(f*(select abs((min(e))) from t1)-t1.f)/abs( - -a))-a)/abs(t1.d)) from t1 where f not in (e,b,t1.f) and c<>f),f)*19 else f end in (b,e,17)),13)-19 FROM t1 WHERE not f>=11}
+} {}
+do_test randexpr-2.930 {
+  db eval {SELECT d-coalesce((select d from t1 where case when ~11*a*c>=17 then coalesce((select (abs(t1.e+c+(abs(f*(select abs((min(e))) from t1)-t1.f)/abs( - -a))-a)/abs(t1.d)) from t1 where f not in (e,b,t1.f) and c<>f),f)*19 else f end in (b,e,17)),13)-19 FROM t1 WHERE NOT (not f>=11)}
+} {368}
+do_test randexpr-2.931 {
+  db eval {SELECT f*t1.d+coalesce((select a+17-t1.e from t1 where 13=t1.f and not (t1.f | b*t1.d-t1.c*coalesce((select max(coalesce((select t1.f from t1 where f not in (13,a,d)),d)) from t1 where t1.a in (select cast(avg(c) AS integer) from t1 union select count(distinct b)*count(distinct t1.c) from t1)),((17)))+ -b+19+13)=t1.f and 19>=t1.a or  - -a>=t1.b),a) FROM t1 WHERE f not in (coalesce((select max(19) from t1 where (t1.e<=+t1.f*case when ~(abs(b)/abs(b)) in (f,t1.d,17) then (abs(t1.e-11 | d)/abs(coalesce((select d from t1 where not coalesce((select t1.a from t1 where not exists(select 1 from t1 where c>=t1.c)),d) in (select count(distinct f)*cast(avg(19) AS integer) from t1 union select count(distinct d) from t1)),13))) when not 11<=t1.a then t1.f else 19 end-19)),f)-17, -a,e)}
+} {240100}
+do_test randexpr-2.932 {
+  db eval {SELECT f*t1.d+coalesce((select a+17-t1.e from t1 where 13=t1.f and not (t1.f | b*t1.d-t1.c*coalesce((select max(coalesce((select t1.f from t1 where f not in (13,a,d)),d)) from t1 where t1.a in (select cast(avg(c) AS integer) from t1 union select count(distinct b)*count(distinct t1.c) from t1)),((17)))+ -b+19+13)=t1.f and 19>=t1.a or  - -a>=t1.b),a) FROM t1 WHERE NOT (f not in (coalesce((select max(19) from t1 where (t1.e<=+t1.f*case when ~(abs(b)/abs(b)) in (f,t1.d,17) then (abs(t1.e-11 | d)/abs(coalesce((select d from t1 where not coalesce((select t1.a from t1 where not exists(select 1 from t1 where c>=t1.c)),d) in (select count(distinct f)*cast(avg(19) AS integer) from t1 union select count(distinct d) from t1)),13))) when not 11<=t1.a then t1.f else 19 end-19)),f)-17, -a,e))}
+} {}
+do_test randexpr-2.933 {
+  db eval {SELECT f*t1.d+coalesce((select a+17-t1.e from t1 where 13=t1.f and not (t1.f & b*t1.d-t1.c*coalesce((select max(coalesce((select t1.f from t1 where f not in (13,a,d)),d)) from t1 where t1.a in (select cast(avg(c) AS integer) from t1 union select count(distinct b)*count(distinct t1.c) from t1)),((17)))+ -b+19+13)=t1.f and 19>=t1.a or  - -a>=t1.b),a) FROM t1 WHERE f not in (coalesce((select max(19) from t1 where (t1.e<=+t1.f*case when ~(abs(b)/abs(b)) in (f,t1.d,17) then (abs(t1.e-11 | d)/abs(coalesce((select d from t1 where not coalesce((select t1.a from t1 where not exists(select 1 from t1 where c>=t1.c)),d) in (select count(distinct f)*cast(avg(19) AS integer) from t1 union select count(distinct d) from t1)),13))) when not 11<=t1.a then t1.f else 19 end-19)),f)-17, -a,e)}
+} {240100}
+do_test randexpr-2.934 {
+  db eval {SELECT coalesce((select case e*+(abs(t1.f-t1.b)/abs(e))-d when coalesce((select t1.e from t1 where exists(select 1 from t1 where +d+ -t1.e not between case when (abs(b)/abs(t1.b)) between a and 17 then t1.b when not 11 not between b and d then 19 else 19 end and t1.f and t1.a between 17 and b)), -13) then (t1.a) else 13 end from t1 where 17 between b and 13), -19) | c FROM t1 WHERE case when t1.e*t1.b | f+d | f+11+(a)-+a+ -t1.c-t1.f | coalesce((select case t1.e when 17 then e else t1.a end from t1 where t1.a<t1.b),t1.b)*f<= -t1.a and c<t1.f then (select (max((b))) from t1) else t1.b end not in (a,a,t1.c)}
+} {-19}
+do_test randexpr-2.935 {
+  db eval {SELECT coalesce((select case e*+(abs(t1.f-t1.b)/abs(e))-d when coalesce((select t1.e from t1 where exists(select 1 from t1 where +d+ -t1.e not between case when (abs(b)/abs(t1.b)) between a and 17 then t1.b when not 11 not between b and d then 19 else 19 end and t1.f and t1.a between 17 and b)), -13) then (t1.a) else 13 end from t1 where 17 between b and 13), -19) | c FROM t1 WHERE NOT (case when t1.e*t1.b | f+d | f+11+(a)-+a+ -t1.c-t1.f | coalesce((select case t1.e when 17 then e else t1.a end from t1 where t1.a<t1.b),t1.b)*f<= -t1.a and c<t1.f then (select (max((b))) from t1) else t1.b end not in (a,a,t1.c))}
+} {}
+do_test randexpr-2.936 {
+  db eval {SELECT coalesce((select case e*+(abs(t1.f-t1.b)/abs(e))-d when coalesce((select t1.e from t1 where exists(select 1 from t1 where +d+ -t1.e not between case when (abs(b)/abs(t1.b)) between a and 17 then t1.b when not 11 not between b and d then 19 else 19 end and t1.f and t1.a between 17 and b)), -13) then (t1.a) else 13 end from t1 where 17 between b and 13), -19) & c FROM t1 WHERE case when t1.e*t1.b | f+d | f+11+(a)-+a+ -t1.c-t1.f | coalesce((select case t1.e when 17 then e else t1.a end from t1 where t1.a<t1.b),t1.b)*f<= -t1.a and c<t1.f then (select (max((b))) from t1) else t1.b end not in (a,a,t1.c)}
+} {300}
+do_test randexpr-2.937 {
+  db eval {SELECT coalesce((select max(t1.d*case when case when ~ -t1.d+17-b-13*t1.f*(abs(t1.b+13)/abs(t1.a))+a*t1.e*t1.a+c*t1.d-t1.a in (select t1.b from t1 union select t1.d from t1) then t1.e else t1.e end not in (t1.f,t1.e,19) then t1.d else 11 end) from t1 where d not between t1.a and a),c) FROM t1 WHERE t1.e in (select a from t1 union select +b-t1.b from t1)}
+} {}
+do_test randexpr-2.938 {
+  db eval {SELECT coalesce((select max(t1.d*case when case when ~ -t1.d+17-b-13*t1.f*(abs(t1.b+13)/abs(t1.a))+a*t1.e*t1.a+c*t1.d-t1.a in (select t1.b from t1 union select t1.d from t1) then t1.e else t1.e end not in (t1.f,t1.e,19) then t1.d else 11 end) from t1 where d not between t1.a and a),c) FROM t1 WHERE NOT (t1.e in (select a from t1 union select +b-t1.b from t1))}
+} {4400}
+do_test randexpr-2.939 {
+  db eval {SELECT d*(select  - - -max( -(abs(e)/abs(~t1.c))) from t1)-13 | coalesce((select max(+t1.a*a) from t1 where t1.e+case e when a then t1.f+(select case ~ -max(d)* - -cast(avg(c) AS integer) when  -min( -t1.b) then min(t1.b) else count(distinct 13) end from t1)-a else ~case when t1.f not in (b,b,a) or c between d and t1.a then c when t1.b>b then e else t1.d end end-11>=13),e) | 13 FROM t1 WHERE not exists(select 1 from t1 where t1.c< -d or t1.e between c and  -t1.d or d<=17)}
+} {10143}
+do_test randexpr-2.940 {
+  db eval {SELECT d*(select  - - -max( -(abs(e)/abs(~t1.c))) from t1)-13 | coalesce((select max(+t1.a*a) from t1 where t1.e+case e when a then t1.f+(select case ~ -max(d)* - -cast(avg(c) AS integer) when  -min( -t1.b) then min(t1.b) else count(distinct 13) end from t1)-a else ~case when t1.f not in (b,b,a) or c between d and t1.a then c when t1.b>b then e else t1.d end end-11>=13),e) | 13 FROM t1 WHERE NOT (not exists(select 1 from t1 where t1.c< -d or t1.e between c and  -t1.d or d<=17))}
+} {}
+do_test randexpr-2.941 {
+  db eval {SELECT d*(select  - - -max( -(abs(e)/abs(~t1.c))) from t1)-13 & coalesce((select max(+t1.a*a) from t1 where t1.e+case e when a then t1.f+(select case ~ -max(d)* - -cast(avg(c) AS integer) when  -min( -t1.b) then min(t1.b) else count(distinct 13) end from t1)-a else ~case when t1.f not in (b,b,a) or c between d and t1.a then c when t1.b>b then e else t1.d end end-11>=13),e) & 13 FROM t1 WHERE not exists(select 1 from t1 where t1.c< -d or t1.e between c and  -t1.d or d<=17)}
+} {0}
+do_test randexpr-2.942 {
+  db eval {SELECT t1.c*+case when a<>+case when b>t1.e or exists(select 1 from t1 where not exists(select 1 from t1 where t1.e in (select coalesce((select b from t1 where (d<f) or t1.e in ((t1.f),(t1.a),13) and (t1.e)<>( -t1.d)),(( -b))) from t1 union select t1.d from t1))) then (select  -max(t1.e)-count(*) from t1) else (t1.c) end+b+(t1.f) | f | e then t1.d when t1.f not in (19,13,e) then 13 else 11 end FROM t1 WHERE (f<>coalesce((select max(a) from t1 where (exists(select 1 from t1 where c between t1.b and case when (abs(19)/abs(t1.f)) in (t1.f,17,t1.a) then t1.b when t1.d<=t1.a then t1.a else c end or c<c) or 13>=b and c>=t1.d and t1.d between c and t1.c)),e+case (select count(distinct case 19 when 13 then t1.b else 11 end) from t1) when 13 then b else t1.b end)-17-17)}
+} {120000}
+do_test randexpr-2.943 {
+  db eval {SELECT t1.c*+case when a<>+case when b>t1.e or exists(select 1 from t1 where not exists(select 1 from t1 where t1.e in (select coalesce((select b from t1 where (d<f) or t1.e in ((t1.f),(t1.a),13) and (t1.e)<>( -t1.d)),(( -b))) from t1 union select t1.d from t1))) then (select  -max(t1.e)-count(*) from t1) else (t1.c) end+b+(t1.f) | f | e then t1.d when t1.f not in (19,13,e) then 13 else 11 end FROM t1 WHERE NOT ((f<>coalesce((select max(a) from t1 where (exists(select 1 from t1 where c between t1.b and case when (abs(19)/abs(t1.f)) in (t1.f,17,t1.a) then t1.b when t1.d<=t1.a then t1.a else c end or c<c) or 13>=b and c>=t1.d and t1.d between c and t1.c)),e+case (select count(distinct case 19 when 13 then t1.b else 11 end) from t1) when 13 then b else t1.b end)-17-17))}
+} {}
+do_test randexpr-2.944 {
+  db eval {SELECT t1.c*+case when a<>+case when b>t1.e or exists(select 1 from t1 where not exists(select 1 from t1 where t1.e in (select coalesce((select b from t1 where (d<f) or t1.e in ((t1.f),(t1.a),13) and (t1.e)<>( -t1.d)),(( -b))) from t1 union select t1.d from t1))) then (select  -max(t1.e)-count(*) from t1) else (t1.c) end+b+(t1.f) & f & e then t1.d when t1.f not in (19,13,e) then 13 else 11 end FROM t1 WHERE (f<>coalesce((select max(a) from t1 where (exists(select 1 from t1 where c between t1.b and case when (abs(19)/abs(t1.f)) in (t1.f,17,t1.a) then t1.b when t1.d<=t1.a then t1.a else c end or c<c) or 13>=b and c>=t1.d and t1.d between c and t1.c)),e+case (select count(distinct case 19 when 13 then t1.b else 11 end) from t1) when 13 then b else t1.b end)-17-17)}
+} {120000}
+do_test randexpr-2.945 {
+  db eval {SELECT case when (e)- -((select case min(case when e in (select coalesce((select max(d) from t1 where 13<>(t1.d-e)),e) from t1 union select c from t1) then d else  -11 end+a) when count(distinct  -f) then count(*) else  -(case cast(avg(17) AS integer)- -count(distinct t1.c)+cast(avg(b) AS integer) when  -max(11) then count(*) else cast(avg(t1.e) AS integer) end+max(t1.f)) end from t1))<=t1.b | t1.e then t1.d when not exists(select 1 from t1 where c<>13) then 11 else d end FROM t1 WHERE (select max(t1.a*case f when b then ~case when not exists(select 1 from t1 where f-d>(select abs(cast(avg(~17+b+d) AS integer)) from t1) or f-e in (select b from t1 union select t1.d from t1) or exists(select 1 from t1 where 13<>b)) then (abs(a)/abs( -d)) when (d<t1.a) then e else t1.e end else t1.a end) from t1)*t1.e in (select t1.f from t1 union select t1.b from t1)}
+} {}
+do_test randexpr-2.946 {
+  db eval {SELECT case when (e)- -((select case min(case when e in (select coalesce((select max(d) from t1 where 13<>(t1.d-e)),e) from t1 union select c from t1) then d else  -11 end+a) when count(distinct  -f) then count(*) else  -(case cast(avg(17) AS integer)- -count(distinct t1.c)+cast(avg(b) AS integer) when  -max(11) then count(*) else cast(avg(t1.e) AS integer) end+max(t1.f)) end from t1))<=t1.b | t1.e then t1.d when not exists(select 1 from t1 where c<>13) then 11 else d end FROM t1 WHERE NOT ((select max(t1.a*case f when b then ~case when not exists(select 1 from t1 where f-d>(select abs(cast(avg(~17+b+d) AS integer)) from t1) or f-e in (select b from t1 union select t1.d from t1) or exists(select 1 from t1 where 13<>b)) then (abs(a)/abs( -d)) when (d<t1.a) then e else t1.e end else t1.a end) from t1)*t1.e in (select t1.f from t1 union select t1.b from t1))}
+} {400}
+do_test randexpr-2.947 {
+  db eval {SELECT case when (e)- -((select case min(case when e in (select coalesce((select max(d) from t1 where 13<>(t1.d-e)),e) from t1 union select c from t1) then d else  -11 end+a) when count(distinct  -f) then count(*) else  -(case cast(avg(17) AS integer)- -count(distinct t1.c)+cast(avg(b) AS integer) when  -max(11) then count(*) else cast(avg(t1.e) AS integer) end+max(t1.f)) end from t1))<=t1.b & t1.e then t1.d when not exists(select 1 from t1 where c<>13) then 11 else d end FROM t1 WHERE NOT ((select max(t1.a*case f when b then ~case when not exists(select 1 from t1 where f-d>(select abs(cast(avg(~17+b+d) AS integer)) from t1) or f-e in (select b from t1 union select t1.d from t1) or exists(select 1 from t1 where 13<>b)) then (abs(a)/abs( -d)) when (d<t1.a) then e else t1.e end else t1.a end) from t1)*t1.e in (select t1.f from t1 union select t1.b from t1))}
+} {400}
+do_test randexpr-2.948 {
+  db eval {SELECT (t1.b+coalesce((select case when e-13+11 | f+case when not t1.b not between t1.f and t1.f then e else (t1.e) end-c-b+c>=e and d between d and a then t1.c when (t1.c>19) then  -11 else a end from t1 where a<d),e)+f+t1.e*d)*17 FROM t1 WHERE t1.b in (select cast(avg(17) AS integer) from t1 union select ~case (+abs(cast(avg((d)) AS integer))) when count(distinct case when (case when c>c then t1.e else  -d end-t1.e) between b and 11 then b when exists(select 1 from t1 where a<=d) then 11 else 13 end) then cast(avg(t1.b) AS integer)-(cast(avg(11) AS integer)-min(a))-count(distinct  -e) else cast(avg(13) AS integer) end*max(b) from t1) or (t1.f not between t1.d and 17 | 19*e)}
+} {}
+do_test randexpr-2.949 {
+  db eval {SELECT (t1.b+coalesce((select case when e-13+11 | f+case when not t1.b not between t1.f and t1.f then e else (t1.e) end-c-b+c>=e and d between d and a then t1.c when (t1.c>19) then  -11 else a end from t1 where a<d),e)+f+t1.e*d)*17 FROM t1 WHERE NOT (t1.b in (select cast(avg(17) AS integer) from t1 union select ~case (+abs(cast(avg((d)) AS integer))) when count(distinct case when (case when c>c then t1.e else  -d end-t1.e) between b and 11 then b when exists(select 1 from t1 where a<=d) then 11 else 13 end) then cast(avg(t1.b) AS integer)-(cast(avg(11) AS integer)-min(a))-count(distinct  -e) else cast(avg(13) AS integer) end*max(b) from t1) or (t1.f not between t1.d and 17 | 19*e))}
+} {3413413}
+do_test randexpr-2.950 {
+  db eval {SELECT (t1.b+coalesce((select case when e-13+11 & f+case when not t1.b not between t1.f and t1.f then e else (t1.e) end-c-b+c>=e and d between d and a then t1.c when (t1.c>19) then  -11 else a end from t1 where a<d),e)+f+t1.e*d)*17 FROM t1 WHERE NOT (t1.b in (select cast(avg(17) AS integer) from t1 union select ~case (+abs(cast(avg((d)) AS integer))) when count(distinct case when (case when c>c then t1.e else  -d end-t1.e) between b and 11 then b when exists(select 1 from t1 where a<=d) then 11 else 13 end) then cast(avg(t1.b) AS integer)-(cast(avg(11) AS integer)-min(a))-count(distinct  -e) else cast(avg(13) AS integer) end*max(b) from t1) or (t1.f not between t1.d and 17 | 19*e))}
+} {3413413}
+do_test randexpr-2.951 {
+  db eval {SELECT coalesce((select max(+19) from t1 where t1.f>=(abs(19)/abs(t1.c*(select count(distinct (abs(t1.f)/abs(t1.c))*coalesce((select max(case when (select count(*) from t1)*t1.f in (t1.b,17,t1.f) then d when t1.e not in (t1.b,t1.a,t1.b) then  -17 else t1.d end) from t1 where (11 not in (t1.b,(f),t1.c)) and t1.c>=t1.f),e)) from t1))) or ((t1.d<=t1.b))),13) FROM t1 WHERE t1.a<>(coalesce((select coalesce((select max(t1.a) from t1 where case  -t1.c when t1.b then coalesce((select t1.b from t1 where not exists(select 1 from t1 where not exists(select 1 from t1 where ((select count(*)++count(distinct a) from t1) not between b and +(17))))),19)*t1.e else f end<=(t1.b)),t1.c) from t1 where d<>b),13)-17+a)+d+(19)+a or d between 11 and  -11}
+} {19}
+do_test randexpr-2.952 {
+  db eval {SELECT coalesce((select max(+19) from t1 where t1.f>=(abs(19)/abs(t1.c*(select count(distinct (abs(t1.f)/abs(t1.c))*coalesce((select max(case when (select count(*) from t1)*t1.f in (t1.b,17,t1.f) then d when t1.e not in (t1.b,t1.a,t1.b) then  -17 else t1.d end) from t1 where (11 not in (t1.b,(f),t1.c)) and t1.c>=t1.f),e)) from t1))) or ((t1.d<=t1.b))),13) FROM t1 WHERE NOT (t1.a<>(coalesce((select coalesce((select max(t1.a) from t1 where case  -t1.c when t1.b then coalesce((select t1.b from t1 where not exists(select 1 from t1 where not exists(select 1 from t1 where ((select count(*)++count(distinct a) from t1) not between b and +(17))))),19)*t1.e else f end<=(t1.b)),t1.c) from t1 where d<>b),13)-17+a)+d+(19)+a or d between 11 and  -11)}
+} {}
+do_test randexpr-2.953 {
+  db eval {SELECT t1.b-coalesce((select max(~t1.a) from t1 where coalesce((select max(t1.d) from t1 where coalesce((select max(coalesce((select t1.c*t1.d from t1 where not f>=a-t1.c+ -coalesce((select t1.f*e from t1 where (not exists(select 1 from t1 where d<=19))),b)-d),13)* -e) from t1 where (d<19 or 13 not between t1.f and t1.d)),11) between 17 and 19),t1.c)< -b),d) FROM t1 WHERE +case when b in (b+~b+t1.f,coalesce((select max(13) from t1 where exists(select 1 from t1 where 17<>+a or not exists(select 1 from t1 where e+19=f))),(e)),case when c>case when coalesce((select 13 from t1 where f>=t1.b and c not between t1.e and t1.d),11) in (select (case max(11) when (min(b)) then min( -d) else cast(avg(t1.e) AS integer) end) from t1 union select max(19) from t1) then t1.d else 13 end then t1.f else t1.e end) or b>=(t1.f) then t1.e else t1.e end*b>f}
+} {-200}
+do_test randexpr-2.954 {
+  db eval {SELECT t1.b-coalesce((select max(~t1.a) from t1 where coalesce((select max(t1.d) from t1 where coalesce((select max(coalesce((select t1.c*t1.d from t1 where not f>=a-t1.c+ -coalesce((select t1.f*e from t1 where (not exists(select 1 from t1 where d<=19))),b)-d),13)* -e) from t1 where (d<19 or 13 not between t1.f and t1.d)),11) between 17 and 19),t1.c)< -b),d) FROM t1 WHERE NOT (+case when b in (b+~b+t1.f,coalesce((select max(13) from t1 where exists(select 1 from t1 where 17<>+a or not exists(select 1 from t1 where e+19=f))),(e)),case when c>case when coalesce((select 13 from t1 where f>=t1.b and c not between t1.e and t1.d),11) in (select (case max(11) when (min(b)) then min( -d) else cast(avg(t1.e) AS integer) end) from t1 union select max(19) from t1) then t1.d else 13 end then t1.f else t1.e end) or b>=(t1.f) then t1.e else t1.e end*b>f)}
+} {}
+do_test randexpr-2.955 {
+  db eval {SELECT (select count(distinct + - -f-c-17*a+(t1.d)-+((select abs( - - -count(distinct 13)-count(*)*count(distinct t1.d)*count(*))-cast(avg(f) AS integer) from t1))-~19+13- -d*t1.e*(19)+ -f- -b) from t1)-e FROM t1 WHERE not t1.c between t1.f and coalesce((select coalesce((select case when exists(select 1 from t1 where +~f=case when d<>t1.d then t1.f else  -d end and d between 17 and t1.c) then ~case when a in (d,c,t1.d) then 17 else t1.f end when f=f then d else  -b end from t1 where c>f),e) from t1 where not exists(select 1 from t1 where t1.d<=c) and 19=(11) and t1.e<>19),a)}
+} {-499}
+do_test randexpr-2.956 {
+  db eval {SELECT (select count(distinct + - -f-c-17*a+(t1.d)-+((select abs( - - -count(distinct 13)-count(*)*count(distinct t1.d)*count(*))-cast(avg(f) AS integer) from t1))-~19+13- -d*t1.e*(19)+ -f- -b) from t1)-e FROM t1 WHERE NOT (not t1.c between t1.f and coalesce((select coalesce((select case when exists(select 1 from t1 where +~f=case when d<>t1.d then t1.f else  -d end and d between 17 and t1.c) then ~case when a in (d,c,t1.d) then 17 else t1.f end when f=f then d else  -b end from t1 where c>f),e) from t1 where not exists(select 1 from t1 where t1.d<=c) and 19=(11) and t1.e<>19),a))}
+} {}
+do_test randexpr-2.957 {
+  db eval {SELECT case when f-t1.b*coalesce((select max(11) from t1 where exists(select 1 from t1 where (abs(t1.b)/abs(13-11))=(19+c))),coalesce((select t1.c | f from t1 where (abs(c*19)/abs(17))=t1.e),19))-e between t1.f and  -((19)) and 13 not between t1.c and 11 and not exists(select 1 from t1 where t1.b>b) then t1.d when t1.c>=13 then c else f end FROM t1 WHERE e-t1.c=+e*~coalesce((select max(t1.f) from t1 where (t1.f in (coalesce((select max(11) from t1 where  -13<>(13)-(select (count(*)) from t1)*t1.f and ( -11+t1.b+b*b-(select max(13) from t1)) in (t1.f,a,f)),d),17,13))),t1.f)-e}
+} {}
+do_test randexpr-2.958 {
+  db eval {SELECT case when f-t1.b*coalesce((select max(11) from t1 where exists(select 1 from t1 where (abs(t1.b)/abs(13-11))=(19+c))),coalesce((select t1.c | f from t1 where (abs(c*19)/abs(17))=t1.e),19))-e between t1.f and  -((19)) and 13 not between t1.c and 11 and not exists(select 1 from t1 where t1.b>b) then t1.d when t1.c>=13 then c else f end FROM t1 WHERE NOT (e-t1.c=+e*~coalesce((select max(t1.f) from t1 where (t1.f in (coalesce((select max(11) from t1 where  -13<>(13)-(select (count(*)) from t1)*t1.f and ( -11+t1.b+b*b-(select max(13) from t1)) in (t1.f,a,f)),d),17,13))),t1.f)-e)}
+} {300}
+do_test randexpr-2.959 {
+  db eval {SELECT case when f-t1.b*coalesce((select max(11) from t1 where exists(select 1 from t1 where (abs(t1.b)/abs(13-11))=(19+c))),coalesce((select t1.c & f from t1 where (abs(c*19)/abs(17))=t1.e),19))-e between t1.f and  -((19)) and 13 not between t1.c and 11 and not exists(select 1 from t1 where t1.b>b) then t1.d when t1.c>=13 then c else f end FROM t1 WHERE NOT (e-t1.c=+e*~coalesce((select max(t1.f) from t1 where (t1.f in (coalesce((select max(11) from t1 where  -13<>(13)-(select (count(*)) from t1)*t1.f and ( -11+t1.b+b*b-(select max(13) from t1)) in (t1.f,a,f)),d),17,13))),t1.f)-e)}
+} {300}
+do_test randexpr-2.960 {
+  db eval {SELECT t1.e+case when coalesce((select  -(abs(t1.e)/abs(t1.c-t1.e)) from t1 where d | d between  -t1.d and ~case t1.d when t1.f then ((abs((select ((min(b)+abs(cast(avg(t1.a) AS integer)*(max(19))))-(cast(avg(t1.d) AS integer))) from t1)*~f)/abs(t1.a*t1.c)))*17 else 19 end),f)- -c<>t1.c then f else t1.f end FROM t1 WHERE 19*coalesce((select max(a) from t1 where not (select count(distinct ~t1.b | t1.d) from t1)<case when b+(case when t1.c not in (f,(b),t1.c) then t1.d else 19 end)>t1.e then c when  -b<11 then t1.c else  -t1.e end and not d in ( -t1.d,t1.a,f) and c=t1.f and f<>t1.a),t1.b) between t1.a and b}
+} {}
+do_test randexpr-2.961 {
+  db eval {SELECT t1.e+case when coalesce((select  -(abs(t1.e)/abs(t1.c-t1.e)) from t1 where d | d between  -t1.d and ~case t1.d when t1.f then ((abs((select ((min(b)+abs(cast(avg(t1.a) AS integer)*(max(19))))-(cast(avg(t1.d) AS integer))) from t1)*~f)/abs(t1.a*t1.c)))*17 else 19 end),f)- -c<>t1.c then f else t1.f end FROM t1 WHERE NOT (19*coalesce((select max(a) from t1 where not (select count(distinct ~t1.b | t1.d) from t1)<case when b+(case when t1.c not in (f,(b),t1.c) then t1.d else 19 end)>t1.e then c when  -b<11 then t1.c else  -t1.e end and not d in ( -t1.d,t1.a,f) and c=t1.f and f<>t1.a),t1.b) between t1.a and b)}
+} {1100}
+do_test randexpr-2.962 {
+  db eval {SELECT t1.e+case when coalesce((select  -(abs(t1.e)/abs(t1.c-t1.e)) from t1 where d & d between  -t1.d and ~case t1.d when t1.f then ((abs((select ((min(b)+abs(cast(avg(t1.a) AS integer)*(max(19))))-(cast(avg(t1.d) AS integer))) from t1)*~f)/abs(t1.a*t1.c)))*17 else 19 end),f)- -c<>t1.c then f else t1.f end FROM t1 WHERE NOT (19*coalesce((select max(a) from t1 where not (select count(distinct ~t1.b | t1.d) from t1)<case when b+(case when t1.c not in (f,(b),t1.c) then t1.d else 19 end)>t1.e then c when  -b<11 then t1.c else  -t1.e end and not d in ( -t1.d,t1.a,f) and c=t1.f and f<>t1.a),t1.b) between t1.a and b)}
+} {1100}
+do_test randexpr-2.963 {
+  db eval {SELECT t1.b*coalesce((select max(e) from t1 where ((t1.d))<=case case when +coalesce((select (abs(t1.a)/abs(c))-(abs( -e)/abs(11* -t1.b+t1.d* -c))-t1.c from t1 where not exists(select 1 from t1 where t1.c=(11))), -11) between 17 and t1.a then t1.a when t1.b>t1.e then (b) else b end-c when d then d else t1.f end),((t1.e))) FROM t1 WHERE ~ -case when not exists(select 1 from t1 where t1.b between b and 11 | d) then  -(abs(17+d)/abs(e)) else case when not (t1.d>=case when case a when case t1.f when (e) then 17 else 19 end then 13 else 19 end in (t1.e,b,((t1.b))) then d when t1.d not in (19,t1.a, -c) then 11 else  -a end) then 11 else c end end*17*t1.b not in (a,b,13)}
+} {100000}
+do_test randexpr-2.964 {
+  db eval {SELECT t1.b*coalesce((select max(e) from t1 where ((t1.d))<=case case when +coalesce((select (abs(t1.a)/abs(c))-(abs( -e)/abs(11* -t1.b+t1.d* -c))-t1.c from t1 where not exists(select 1 from t1 where t1.c=(11))), -11) between 17 and t1.a then t1.a when t1.b>t1.e then (b) else b end-c when d then d else t1.f end),((t1.e))) FROM t1 WHERE NOT (~ -case when not exists(select 1 from t1 where t1.b between b and 11 | d) then  -(abs(17+d)/abs(e)) else case when not (t1.d>=case when case a when case t1.f when (e) then 17 else 19 end then 13 else 19 end in (t1.e,b,((t1.b))) then d when t1.d not in (19,t1.a, -c) then 11 else  -a end) then 11 else c end end*17*t1.b not in (a,b,13))}
+} {}
+do_test randexpr-2.965 {
+  db eval {SELECT e*case +case when not (select max(17) from t1)>=case when not d=c+t1.c then 11 else 11 end or (c in (select t1.c from t1 union select c from t1) or 11<=t1.a) or d<=11 or 19 in ( -13,d,19) or a not between 13 and (t1.c) then case when t1.f<=(t1.a) then t1.e+13*e when (t1.b) not between f and a then c else 11 end*11 else a end when 19 then t1.a else 17 end FROM t1 WHERE b<>17}
+} {8500}
+do_test randexpr-2.966 {
+  db eval {SELECT e*case +case when not (select max(17) from t1)>=case when not d=c+t1.c then 11 else 11 end or (c in (select t1.c from t1 union select c from t1) or 11<=t1.a) or d<=11 or 19 in ( -13,d,19) or a not between 13 and (t1.c) then case when t1.f<=(t1.a) then t1.e+13*e when (t1.b) not between f and a then c else 11 end*11 else a end when 19 then t1.a else 17 end FROM t1 WHERE NOT (b<>17)}
+} {}
+do_test randexpr-2.967 {
+  db eval {SELECT (abs(case when (13+e in (select min(a) | case abs(min(case when t1.e in (select b from t1 union select a from t1) then t1.e when t1.b=t1.c then t1.b else c end-f)) when ~(cast(avg(c) AS integer)) then min(t1.e) else count(*) end from t1 union select min(f) from t1)) and t1.d not between c and 13 then coalesce((select t1.d from t1 where t1.e<>a),19)-t1.d else 19 end)/abs(c))-c+11+c FROM t1 WHERE t1.e<f+11-b}
+} {}
+do_test randexpr-2.968 {
+  db eval {SELECT (abs(case when (13+e in (select min(a) | case abs(min(case when t1.e in (select b from t1 union select a from t1) then t1.e when t1.b=t1.c then t1.b else c end-f)) when ~(cast(avg(c) AS integer)) then min(t1.e) else count(*) end from t1 union select min(f) from t1)) and t1.d not between c and 13 then coalesce((select t1.d from t1 where t1.e<>a),19)-t1.d else 19 end)/abs(c))-c+11+c FROM t1 WHERE NOT (t1.e<f+11-b)}
+} {11}
+do_test randexpr-2.969 {
+  db eval {SELECT (abs(case when (13+e in (select min(a) & case abs(min(case when t1.e in (select b from t1 union select a from t1) then t1.e when t1.b=t1.c then t1.b else c end-f)) when ~(cast(avg(c) AS integer)) then min(t1.e) else count(*) end from t1 union select min(f) from t1)) and t1.d not between c and 13 then coalesce((select t1.d from t1 where t1.e<>a),19)-t1.d else 19 end)/abs(c))-c+11+c FROM t1 WHERE NOT (t1.e<f+11-b)}
+} {11}
+do_test randexpr-2.970 {
+  db eval {SELECT case when case when not exists(select 1 from t1 where (11 not between ~~t1.d-case c when coalesce((select case f when coalesce((select max(t1.f) from t1 where 11 not in (((13)),d,t1.d)),11) then f else a end from t1 where 11 not between (t1.a) and 17),t1.c)-c*17 then (17) else t1.b end+t1.d+t1.a and d)) then t1.e-11+19 else (d) end*d<=11 then t1.b else f end FROM t1 WHERE not exists(select 1 from t1 where d>=t1.f)}
+} {600}
+do_test randexpr-2.971 {
+  db eval {SELECT case when case when not exists(select 1 from t1 where (11 not between ~~t1.d-case c when coalesce((select case f when coalesce((select max(t1.f) from t1 where 11 not in (((13)),d,t1.d)),11) then f else a end from t1 where 11 not between (t1.a) and 17),t1.c)-c*17 then (17) else t1.b end+t1.d+t1.a and d)) then t1.e-11+19 else (d) end*d<=11 then t1.b else f end FROM t1 WHERE NOT (not exists(select 1 from t1 where d>=t1.f))}
+} {}
+do_test randexpr-2.972 {
+  db eval {SELECT 13 | t1.c+case when (not t1.d-c between +t1.b and  -coalesce((select (select count(distinct 17) from t1)*a from t1 where  -case when not t1.f in (select count(distinct 13) from t1 union select min( -t1.a) from t1) then case when (t1.e)< -11 then  -c else t1.a end else d end-c*t1.a-d+ -e-t1.a not in (17,e,t1.a)),b) | t1.f) then c else 11 end FROM t1 WHERE case when (+e | (t1.e) | 11)<>b then t1.b when t1.e<>~(case when (t1.a*b) in (select d from t1 union select b from t1) or t1.c not in (t1.a,t1.d,13) and t1.f in (select case min(19) when min(17) then min(19) else count(distinct t1.e) end from t1 union select (count(*)) from t1) then t1.f else b end)+11 then b else 13 end+t1.d between b and 17}
+} {}
+do_test randexpr-2.973 {
+  db eval {SELECT 13 | t1.c+case when (not t1.d-c between +t1.b and  -coalesce((select (select count(distinct 17) from t1)*a from t1 where  -case when not t1.f in (select count(distinct 13) from t1 union select min( -t1.a) from t1) then case when (t1.e)< -11 then  -c else t1.a end else d end-c*t1.a-d+ -e-t1.a not in (17,e,t1.a)),b) | t1.f) then c else 11 end FROM t1 WHERE NOT (case when (+e | (t1.e) | 11)<>b then t1.b when t1.e<>~(case when (t1.a*b) in (select d from t1 union select b from t1) or t1.c not in (t1.a,t1.d,13) and t1.f in (select case min(19) when min(17) then min(19) else count(distinct t1.e) end from t1 union select (count(*)) from t1) then t1.f else b end)+11 then b else 13 end+t1.d between b and 17)}
+} {605}
+do_test randexpr-2.974 {
+  db eval {SELECT 13 & t1.c+case when (not t1.d-c between +t1.b and  -coalesce((select (select count(distinct 17) from t1)*a from t1 where  -case when not t1.f in (select count(distinct 13) from t1 union select min( -t1.a) from t1) then case when (t1.e)< -11 then  -c else t1.a end else d end-c*t1.a-d+ -e-t1.a not in (17,e,t1.a)),b) & t1.f) then c else 11 end FROM t1 WHERE NOT (case when (+e | (t1.e) | 11)<>b then t1.b when t1.e<>~(case when (t1.a*b) in (select d from t1 union select b from t1) or t1.c not in (t1.a,t1.d,13) and t1.f in (select case min(19) when min(17) then min(19) else count(distinct t1.e) end from t1 union select (count(*)) from t1) then t1.f else b end)+11 then b else 13 end+t1.d between b and 17)}
+} {8}
+do_test randexpr-2.975 {
+  db eval {SELECT case when case when t1.a<>t1.d then d*t1.a*11-e-(+11+d)-e else (select case  -count(distinct t1.e) when cast(avg(b) AS integer) then count(distinct t1.d) else cast(avg(13) AS integer) end*cast(avg(19) AS integer) from t1) end<>case e when e then t1.e else (t1.f) end or not exists(select 1 from t1 where 19=f) and  -t1.d>t1.e then t1.e+e*e when 11=t1.c then e else c end FROM t1 WHERE ~c>(case when t1.e<=e then case when case when 17+f in (d,t1.d | t1.c,t1.b) and 13<>19 or not t1.c<f then coalesce((select max(b) from t1 where c not between b and t1.c),c)+(17) when d<=t1.c then t1.b else t1.c end-b not in (a,f,11) then c else 17 end else f end)}
+} {}
+do_test randexpr-2.976 {
+  db eval {SELECT case when case when t1.a<>t1.d then d*t1.a*11-e-(+11+d)-e else (select case  -count(distinct t1.e) when cast(avg(b) AS integer) then count(distinct t1.d) else cast(avg(13) AS integer) end*cast(avg(19) AS integer) from t1) end<>case e when e then t1.e else (t1.f) end or not exists(select 1 from t1 where 19=f) and  -t1.d>t1.e then t1.e+e*e when 11=t1.c then e else c end FROM t1 WHERE NOT (~c>(case when t1.e<=e then case when case when 17+f in (d,t1.d | t1.c,t1.b) and 13<>19 or not t1.c<f then coalesce((select max(b) from t1 where c not between b and t1.c),c)+(17) when d<=t1.c then t1.b else t1.c end-b not in (a,f,11) then c else 17 end else f end))}
+} {250500}
+do_test randexpr-2.977 {
+  db eval {SELECT case when (13 in (select ~t1.c from t1 union select case when t1.a in (select t1.f-t1.e | t1.c+19 from t1 union select coalesce((select max(13) from t1 where e in (select ~19-(select case count(*)-cast(avg(c) AS integer) when cast(avg(t1.f) AS integer) then  -max(d) else min(t1.d) end | ( -cast(avg(t1.a) AS integer)) from t1)-b*d-coalesce((select max(f) from t1 where not t1.c=c),b) from t1 union select 13 from t1)),a) from t1) then t1.c else t1.b end from t1)) then (abs(c)/abs(19)) else c end FROM t1 WHERE coalesce((select  -case (select count(*) from t1) when d*+b then a else d end from t1 where b not in (11*case t1.e when case +coalesce((select b+19*+case t1.c when t1.a then t1.b else t1.f end*f*11 from t1 where t1.a=t1.f),c) when t1.e then 17 else d end then t1.f else t1.b end,f,d)),t1.d) in (13,e, -b)}
+} {}
+do_test randexpr-2.978 {
+  db eval {SELECT case when (13 in (select ~t1.c from t1 union select case when t1.a in (select t1.f-t1.e | t1.c+19 from t1 union select coalesce((select max(13) from t1 where e in (select ~19-(select case count(*)-cast(avg(c) AS integer) when cast(avg(t1.f) AS integer) then  -max(d) else min(t1.d) end | ( -cast(avg(t1.a) AS integer)) from t1)-b*d-coalesce((select max(f) from t1 where not t1.c=c),b) from t1 union select 13 from t1)),a) from t1) then t1.c else t1.b end from t1)) then (abs(c)/abs(19)) else c end FROM t1 WHERE NOT (coalesce((select  -case (select count(*) from t1) when d*+b then a else d end from t1 where b not in (11*case t1.e when case +coalesce((select b+19*+case t1.c when t1.a then t1.b else t1.f end*f*11 from t1 where t1.a=t1.f),c) when t1.e then 17 else d end then t1.f else t1.b end,f,d)),t1.d) in (13,e, -b))}
+} {300}
+do_test randexpr-2.979 {
+  db eval {SELECT case when (13 in (select ~t1.c from t1 union select case when t1.a in (select t1.f-t1.e & t1.c+19 from t1 union select coalesce((select max(13) from t1 where e in (select ~19-(select case count(*)-cast(avg(c) AS integer) when cast(avg(t1.f) AS integer) then  -max(d) else min(t1.d) end & ( -cast(avg(t1.a) AS integer)) from t1)-b*d-coalesce((select max(f) from t1 where not t1.c=c),b) from t1 union select 13 from t1)),a) from t1) then t1.c else t1.b end from t1)) then (abs(c)/abs(19)) else c end FROM t1 WHERE NOT (coalesce((select  -case (select count(*) from t1) when d*+b then a else d end from t1 where b not in (11*case t1.e when case +coalesce((select b+19*+case t1.c when t1.a then t1.b else t1.f end*f*11 from t1 where t1.a=t1.f),c) when t1.e then 17 else d end then t1.f else t1.b end,f,d)),t1.d) in (13,e, -b))}
+} {300}
+do_test randexpr-2.980 {
+  db eval {SELECT ~case when exists(select 1 from t1 where ((coalesce((select d from t1 where t1.e-f | +t1.d between t1.c and t1.a or exists(select 1 from t1 where 19 in (11,11,13)) and 17 in (select case min(d) when count(*) then (min(13)) else  -(cast(avg( -c) AS integer)) end*count(distinct 19) from t1 union select count(distinct e) from t1)),f) | c*b<= -b or not not t1.c<13 or (t1.f)>=t1.f))) and t1.c not in (17,b,e) then a else (select count(distinct t1.d) from t1) end FROM t1 WHERE (select (count(*)) from t1) between 11 and t1.d}
+} {}
+do_test randexpr-2.981 {
+  db eval {SELECT ~case when exists(select 1 from t1 where ((coalesce((select d from t1 where t1.e-f | +t1.d between t1.c and t1.a or exists(select 1 from t1 where 19 in (11,11,13)) and 17 in (select case min(d) when count(*) then (min(13)) else  -(cast(avg( -c) AS integer)) end*count(distinct 19) from t1 union select count(distinct e) from t1)),f) | c*b<= -b or not not t1.c<13 or (t1.f)>=t1.f))) and t1.c not in (17,b,e) then a else (select count(distinct t1.d) from t1) end FROM t1 WHERE NOT ((select (count(*)) from t1) between 11 and t1.d)}
+} {-101}
+do_test randexpr-2.982 {
+  db eval {SELECT ~case when exists(select 1 from t1 where ((coalesce((select d from t1 where t1.e-f & +t1.d between t1.c and t1.a or exists(select 1 from t1 where 19 in (11,11,13)) and 17 in (select case min(d) when count(*) then (min(13)) else  -(cast(avg( -c) AS integer)) end*count(distinct 19) from t1 union select count(distinct e) from t1)),f) & c*b<= -b or not not t1.c<13 or (t1.f)>=t1.f))) and t1.c not in (17,b,e) then a else (select count(distinct t1.d) from t1) end FROM t1 WHERE NOT ((select (count(*)) from t1) between 11 and t1.d)}
+} {-101}
+do_test randexpr-2.983 {
+  db eval {SELECT coalesce((select max(b) from t1 where not not c*t1.e>=19 or case when 17<=t1.b and case when 13 not between d and  -f then case e when 11 then case when e in (select ( -d) from t1 union select e from t1) and 19<=(a) then t1.a else (19) end else f end else t1.a end+t1.a<19 then ~d when e in (a,11, -b) then b else e end not between f and 13),a) FROM t1 WHERE t1.a>=+a}
+} {200}
+do_test randexpr-2.984 {
+  db eval {SELECT coalesce((select max(b) from t1 where not not c*t1.e>=19 or case when 17<=t1.b and case when 13 not between d and  -f then case e when 11 then case when e in (select ( -d) from t1 union select e from t1) and 19<=(a) then t1.a else (19) end else f end else t1.a end+t1.a<19 then ~d when e in (a,11, -b) then b else e end not between f and 13),a) FROM t1 WHERE NOT (t1.a>=+a)}
+} {}
+do_test randexpr-2.985 {
+  db eval {SELECT case when case when 11 between a+a+t1.b and b then c*e-t1.c*t1.a when +b<= -t1.c-t1.e-19*t1.b+c*t1.b then e else d end-(11)-e<d then 11 when 13=t1.e then a else 13 end+c-d FROM t1 WHERE ~coalesce((select max((select count(*) from t1)+t1.f) from t1 where 17 in (~t1.a,d,13)), -(select max(13) from t1) | coalesce((select c from t1 where t1.e* -coalesce((select 17 from t1 where (abs(t1.a+t1.d)/abs(t1.f))*t1.e | 17 | 11 not in ((t1.d),c,t1.c)),13)*13 in (11,t1.e,a)),19)) in (13,13,c)}
+} {}
+do_test randexpr-2.986 {
+  db eval {SELECT case when case when 11 between a+a+t1.b and b then c*e-t1.c*t1.a when +b<= -t1.c-t1.e-19*t1.b+c*t1.b then e else d end-(11)-e<d then 11 when 13=t1.e then a else 13 end+c-d FROM t1 WHERE NOT (~coalesce((select max((select count(*) from t1)+t1.f) from t1 where 17 in (~t1.a,d,13)), -(select max(13) from t1) | coalesce((select c from t1 where t1.e* -coalesce((select 17 from t1 where (abs(t1.a+t1.d)/abs(t1.f))*t1.e | 17 | 11 not in ((t1.d),c,t1.c)),13)*13 in (11,t1.e,a)),19)) in (13,13,c))}
+} {-89}
+do_test randexpr-2.987 {
+  db eval {SELECT c-case 17 when c+b-t1.a-a*coalesce((select max(t1.c) from t1 where t1.b- -(abs(13)/abs(t1.e)) in (case t1.f when f then coalesce((select max(coalesce((select 13 from t1 where exists(select 1 from t1 where f not between e and c)),e)) from t1 where d not between t1.a and 13),d)-b else a end, -13,(t1.f)) and 13 between e and 17),a) | a then t1.d else e end+ -t1.e FROM t1 WHERE not exists(select 1 from t1 where coalesce((select  -+t1.c | case when a in (select case max(+b) when ~count(*) then count(*) else (abs((max(f)))) end from t1 union select  -max(e) from t1) then case when (t1.d>=11) or t1.c not between t1.d and  - -11 then t1.a when 11 not between  -t1.e and t1.a then 11 else t1.b end when (d not in (a,c,19)) then f else c end*17 from t1 where  -11<=t1.c),t1.c)+f not in (t1.f, -d,19))}
+} {}
+do_test randexpr-2.988 {
+  db eval {SELECT c-case 17 when c+b-t1.a-a*coalesce((select max(t1.c) from t1 where t1.b- -(abs(13)/abs(t1.e)) in (case t1.f when f then coalesce((select max(coalesce((select 13 from t1 where exists(select 1 from t1 where f not between e and c)),e)) from t1 where d not between t1.a and 13),d)-b else a end, -13,(t1.f)) and 13 between e and 17),a) | a then t1.d else e end+ -t1.e FROM t1 WHERE NOT (not exists(select 1 from t1 where coalesce((select  -+t1.c | case when a in (select case max(+b) when ~count(*) then count(*) else (abs((max(f)))) end from t1 union select  -max(e) from t1) then case when (t1.d>=11) or t1.c not between t1.d and  - -11 then t1.a when 11 not between  -t1.e and t1.a then 11 else t1.b end when (d not in (a,c,19)) then f else c end*17 from t1 where  -11<=t1.c),t1.c)+f not in (t1.f, -d,19)))}
+} {-700}
+do_test randexpr-2.989 {
+  db eval {SELECT c-case 17 when c+b-t1.a-a*coalesce((select max(t1.c) from t1 where t1.b- -(abs(13)/abs(t1.e)) in (case t1.f when f then coalesce((select max(coalesce((select 13 from t1 where exists(select 1 from t1 where f not between e and c)),e)) from t1 where d not between t1.a and 13),d)-b else a end, -13,(t1.f)) and 13 between e and 17),a) & a then t1.d else e end+ -t1.e FROM t1 WHERE NOT (not exists(select 1 from t1 where coalesce((select  -+t1.c | case when a in (select case max(+b) when ~count(*) then count(*) else (abs((max(f)))) end from t1 union select  -max(e) from t1) then case when (t1.d>=11) or t1.c not between t1.d and  - -11 then t1.a when 11 not between  -t1.e and t1.a then 11 else t1.b end when (d not in (a,c,19)) then f else c end*17 from t1 where  -11<=t1.c),t1.c)+f not in (t1.f, -d,19)))}
+} {-700}
+do_test randexpr-2.990 {
+  db eval {SELECT (select ( -count(distinct case case a when e then c*case when e<=t1.d+b then a when (abs(t1.f)/abs(case when b-coalesce((select max(t1.f-t1.b) from t1 where not exists(select 1 from t1 where 17 in (b,13,(b)) or b in (d,c,t1.e))),t1.b) not in (d,((c)),t1.b) then  -19 when c between a and 13 then 19 else t1.f end))=13 then f else 13 end else 17 end when 13 then t1.f else t1.b end-t1.c)) from t1) FROM t1 WHERE coalesce((select max(t1.d) from t1 where t1.c<>t1.c-13),t1.a)>=d or b*coalesce((select max((d)) from t1 where c not between +coalesce((select max(13) from t1 where e between  -(abs(( -coalesce((select max(case f when t1.f then e else  -t1.c end) from t1 where 11>e and t1.b<t1.e),t1.c)))/abs(b)) and d),a) and t1.e),t1.b)* -19 not between (17) and t1.f and (t1.e<=a)}
+} {-1}
+do_test randexpr-2.991 {
+  db eval {SELECT (select ( -count(distinct case case a when e then c*case when e<=t1.d+b then a when (abs(t1.f)/abs(case when b-coalesce((select max(t1.f-t1.b) from t1 where not exists(select 1 from t1 where 17 in (b,13,(b)) or b in (d,c,t1.e))),t1.b) not in (d,((c)),t1.b) then  -19 when c between a and 13 then 19 else t1.f end))=13 then f else 13 end else 17 end when 13 then t1.f else t1.b end-t1.c)) from t1) FROM t1 WHERE NOT (coalesce((select max(t1.d) from t1 where t1.c<>t1.c-13),t1.a)>=d or b*coalesce((select max((d)) from t1 where c not between +coalesce((select max(13) from t1 where e between  -(abs(( -coalesce((select max(case f when t1.f then e else  -t1.c end) from t1 where 11>e and t1.b<t1.e),t1.c)))/abs(b)) and d),a) and t1.e),t1.b)* -19 not between (17) and t1.f and (t1.e<=a))}
+} {}
+do_test randexpr-2.992 {
+  db eval {SELECT case when (11=(t1.b)) then t1.c-coalesce((select case when t1.f*c-b<>b then t1.a else e end | f from t1 where 13 in (select abs(~max((17))) from t1 union select cast(avg(t1.b) AS integer)-min(19) from t1)), -t1.a) when c<d or (e=17 or t1.f in (select min(t1.a) from t1 union select max(a) from t1)) then e else d end*b+t1.e FROM t1 WHERE (select case case case cast(avg(+(select abs(+count(distinct t1.d)-count(distinct t1.b) | max(17)) |  -cast(avg(f) AS integer)*count(*) from t1)) AS integer) when  -count(*)* - -max(b) then (count(distinct 19)) else max(t1.e) end when count(*) then count(*) else cast(avg(t1.c) AS integer) end when max(c) then (cast(avg(t1.c) AS integer)) else min(t1.f) end-max(17) | min((11)) from t1)<>+case ~e+~t1.d | 13 when case when t1.c<=t1.c or (11)=t1.a then 11 when  -11 in (17,11, -d) then t1.a else t1.b end then 19 else 13 end* -t1.c}
+} {100500}
+do_test randexpr-2.993 {
+  db eval {SELECT case when (11=(t1.b)) then t1.c-coalesce((select case when t1.f*c-b<>b then t1.a else e end | f from t1 where 13 in (select abs(~max((17))) from t1 union select cast(avg(t1.b) AS integer)-min(19) from t1)), -t1.a) when c<d or (e=17 or t1.f in (select min(t1.a) from t1 union select max(a) from t1)) then e else d end*b+t1.e FROM t1 WHERE NOT ((select case case case cast(avg(+(select abs(+count(distinct t1.d)-count(distinct t1.b) | max(17)) |  -cast(avg(f) AS integer)*count(*) from t1)) AS integer) when  -count(*)* - -max(b) then (count(distinct 19)) else max(t1.e) end when count(*) then count(*) else cast(avg(t1.c) AS integer) end when max(c) then (cast(avg(t1.c) AS integer)) else min(t1.f) end-max(17) | min((11)) from t1)<>+case ~e+~t1.d | 13 when case when t1.c<=t1.c or (11)=t1.a then 11 when  -11 in (17,11, -d) then t1.a else t1.b end then 19 else 13 end* -t1.c)}
+} {}
+do_test randexpr-2.994 {
+  db eval {SELECT case when (11=(t1.b)) then t1.c-coalesce((select case when t1.f*c-b<>b then t1.a else e end & f from t1 where 13 in (select abs(~max((17))) from t1 union select cast(avg(t1.b) AS integer)-min(19) from t1)), -t1.a) when c<d or (e=17 or t1.f in (select min(t1.a) from t1 union select max(a) from t1)) then e else d end*b+t1.e FROM t1 WHERE (select case case case cast(avg(+(select abs(+count(distinct t1.d)-count(distinct t1.b) | max(17)) |  -cast(avg(f) AS integer)*count(*) from t1)) AS integer) when  -count(*)* - -max(b) then (count(distinct 19)) else max(t1.e) end when count(*) then count(*) else cast(avg(t1.c) AS integer) end when max(c) then (cast(avg(t1.c) AS integer)) else min(t1.f) end-max(17) | min((11)) from t1)<>+case ~e+~t1.d | 13 when case when t1.c<=t1.c or (11)=t1.a then 11 when  -11 in (17,11, -d) then t1.a else t1.b end then 19 else 13 end* -t1.c}
+} {100500}
+do_test randexpr-2.995 {
+  db eval {SELECT case when (f in (select count(distinct 17) from t1 union select count(distinct t1.b) from t1)) then d when e in (coalesce((select max(e+e) from t1 where exists(select 1 from t1 where not exists(select 1 from t1 where 11-t1.a in (select case  -max(11)-max(b) when min(t1.f) then count(distinct f) else count(distinct t1.c) end | count(*) from t1 union select min( -a) from t1)) and t1.e in (select count(distinct  -t1.e) from t1 union select count(distinct a) from t1) and d not in (b,f,t1.d)) and a between t1.c and t1.e),f),c,11) then c else t1.f end | a FROM t1 WHERE coalesce((select a from t1 where t1.a | (17-coalesce((select t1.b from t1 where ~t1.f | t1.e=d and a<=19+(select (cast(avg(c) AS integer)) from t1)),t1.c))+t1.e*t1.d+t1.c not between t1.d and 19), -t1.d) in (select (count(*)) from t1 union select (++~min(c)*+max(t1.a)+cast(avg( -(t1.e)) AS integer)) from t1)}
+} {}
+do_test randexpr-2.996 {
+  db eval {SELECT case when (f in (select count(distinct 17) from t1 union select count(distinct t1.b) from t1)) then d when e in (coalesce((select max(e+e) from t1 where exists(select 1 from t1 where not exists(select 1 from t1 where 11-t1.a in (select case  -max(11)-max(b) when min(t1.f) then count(distinct f) else count(distinct t1.c) end | count(*) from t1 union select min( -a) from t1)) and t1.e in (select count(distinct  -t1.e) from t1 union select count(distinct a) from t1) and d not in (b,f,t1.d)) and a between t1.c and t1.e),f),c,11) then c else t1.f end | a FROM t1 WHERE NOT (coalesce((select a from t1 where t1.a | (17-coalesce((select t1.b from t1 where ~t1.f | t1.e=d and a<=19+(select (cast(avg(c) AS integer)) from t1)),t1.c))+t1.e*t1.d+t1.c not between t1.d and 19), -t1.d) in (select (count(*)) from t1 union select (++~min(c)*+max(t1.a)+cast(avg( -(t1.e)) AS integer)) from t1))}
+} {636}
+do_test randexpr-2.997 {
+  db eval {SELECT case when (f in (select count(distinct 17) from t1 union select count(distinct t1.b) from t1)) then d when e in (coalesce((select max(e+e) from t1 where exists(select 1 from t1 where not exists(select 1 from t1 where 11-t1.a in (select case  -max(11)-max(b) when min(t1.f) then count(distinct f) else count(distinct t1.c) end & count(*) from t1 union select min( -a) from t1)) and t1.e in (select count(distinct  -t1.e) from t1 union select count(distinct a) from t1) and d not in (b,f,t1.d)) and a between t1.c and t1.e),f),c,11) then c else t1.f end & a FROM t1 WHERE NOT (coalesce((select a from t1 where t1.a | (17-coalesce((select t1.b from t1 where ~t1.f | t1.e=d and a<=19+(select (cast(avg(c) AS integer)) from t1)),t1.c))+t1.e*t1.d+t1.c not between t1.d and 19), -t1.d) in (select (count(*)) from t1 union select (++~min(c)*+max(t1.a)+cast(avg( -(t1.e)) AS integer)) from t1))}
+} {64}
+do_test randexpr-2.998 {
+  db eval {SELECT case when coalesce((select t1.b from t1 where a not in (19,coalesce((select max(t1.f) from t1 where (select count(distinct t1.b) from t1) in (t1.e,t1.f*13-11,d)),(t1.f))-17*c,c) or t1.c<=11),19)>13 and f not in (t1.a,11,t1.d) then (((e))) when f=11 or f not in (a,19,17) then 13 else e end FROM t1 WHERE c in (select min(t1.a*a+(select count(distinct t1.b+(t1.a)- - -c) from t1)-t1.e) from t1 union select count(*) from t1) and c in (select min(t1.d) from t1 union select cast(avg(d) AS integer)+abs(case count(*) when count(distinct 11) then  -count(distinct 19) else count(distinct (t1.b)) end) | cast(avg((t1.c)) AS integer)+count(*) from t1) and e=13 and t1.d>c or 13 not in (17,(t1.f),t1.a) or (11)=t1.b and t1.e>=a or 11<=t1.b or d<=17}
+} {500}
+do_test randexpr-2.999 {
+  db eval {SELECT case when coalesce((select t1.b from t1 where a not in (19,coalesce((select max(t1.f) from t1 where (select count(distinct t1.b) from t1) in (t1.e,t1.f*13-11,d)),(t1.f))-17*c,c) or t1.c<=11),19)>13 and f not in (t1.a,11,t1.d) then (((e))) when f=11 or f not in (a,19,17) then 13 else e end FROM t1 WHERE NOT (c in (select min(t1.a*a+(select count(distinct t1.b+(t1.a)- - -c) from t1)-t1.e) from t1 union select count(*) from t1) and c in (select min(t1.d) from t1 union select cast(avg(d) AS integer)+abs(case count(*) when count(distinct 11) then  -count(distinct 19) else count(distinct (t1.b)) end) | cast(avg((t1.c)) AS integer)+count(*) from t1) and e=13 and t1.d>c or 13 not in (17,(t1.f),t1.a) or (11)=t1.b and t1.e>=a or 11<=t1.b or d<=17)}
+} {}
+do_test randexpr-2.1000 {
+  db eval {SELECT case when t1.d not between (abs(d)/abs(t1.e))+t1.f*t1.a*a and 17*e then case when 11 between a and coalesce((select max(t1.b) from t1 where (case when t1.e+(t1.b) not in (t1.e,d,f) or 13<>17 then 17 when a>e then 11 else a end in (select count(*) from t1 union select min(a) from t1))),17) then 19 when  -11 in (select t1.c from t1 union select  -19 from t1) or  - - -t1.e=t1.a then 17 else t1.a end else t1.e end FROM t1 WHERE (select +count(distinct f) from t1)-t1.f between t1.f and c}
+} {}
+do_test randexpr-2.1001 {
+  db eval {SELECT case when t1.d not between (abs(d)/abs(t1.e))+t1.f*t1.a*a and 17*e then case when 11 between a and coalesce((select max(t1.b) from t1 where (case when t1.e+(t1.b) not in (t1.e,d,f) or 13<>17 then 17 when a>e then 11 else a end in (select count(*) from t1 union select min(a) from t1))),17) then 19 when  -11 in (select t1.c from t1 union select  -19 from t1) or  - - -t1.e=t1.a then 17 else t1.a end else t1.e end FROM t1 WHERE NOT ((select +count(distinct f) from t1)-t1.f between t1.f and c)}
+} {100}
+do_test randexpr-2.1002 {
+  db eval {SELECT case when (case when e between t1.b and c+(select cast(avg( -case c when a then t1.f+c else 17 end) AS integer) from t1) then t1.e when not 19>=t1.a then 17 else d end in (select cast(avg(13) AS integer)-max(11) | +count(*) from t1 union select case (cast(avg(d) AS integer)) when min(a) then abs( -max(19)) else count(*) end from t1)) then (t1.a) else c end |  -e*a FROM t1 WHERE f*t1.d*(abs(case d when coalesce((select max((abs(t1.e)/abs(t1.f))) from t1 where ((e between (b) and 13) or t1.d=(c)) and t1.f between 17 and t1.e),a) then  -b else  -e end+ -t1.e)/abs(t1.c))+f<=17 or t1.f not between f and t1.e or (t1.c in (select 17 from t1 union select f from t1)) or exists(select 1 from t1 where (a not in (d,t1.a,t1.e) and t1.a in (t1.a,c,19))) and f not in (t1.d,t1.c,c)}
+} {-49732}
+do_test randexpr-2.1003 {
+  db eval {SELECT case when (case when e between t1.b and c+(select cast(avg( -case c when a then t1.f+c else 17 end) AS integer) from t1) then t1.e when not 19>=t1.a then 17 else d end in (select cast(avg(13) AS integer)-max(11) | +count(*) from t1 union select case (cast(avg(d) AS integer)) when min(a) then abs( -max(19)) else count(*) end from t1)) then (t1.a) else c end |  -e*a FROM t1 WHERE NOT (f*t1.d*(abs(case d when coalesce((select max((abs(t1.e)/abs(t1.f))) from t1 where ((e between (b) and 13) or t1.d=(c)) and t1.f between 17 and t1.e),a) then  -b else  -e end+ -t1.e)/abs(t1.c))+f<=17 or t1.f not between f and t1.e or (t1.c in (select 17 from t1 union select f from t1)) or exists(select 1 from t1 where (a not in (d,t1.a,t1.e) and t1.a in (t1.a,c,19))) and f not in (t1.d,t1.c,c))}
+} {}
+do_test randexpr-2.1004 {
+  db eval {SELECT case when (case when e between t1.b and c+(select cast(avg( -case c when a then t1.f+c else 17 end) AS integer) from t1) then t1.e when not 19>=t1.a then 17 else d end in (select cast(avg(13) AS integer)-max(11) & +count(*) from t1 union select case (cast(avg(d) AS integer)) when min(a) then abs( -max(19)) else count(*) end from t1)) then (t1.a) else c end &  -e*a FROM t1 WHERE f*t1.d*(abs(case d when coalesce((select max((abs(t1.e)/abs(t1.f))) from t1 where ((e between (b) and 13) or t1.d=(c)) and t1.f between 17 and t1.e),a) then  -b else  -e end+ -t1.e)/abs(t1.c))+f<=17 or t1.f not between f and t1.e or (t1.c in (select 17 from t1 union select f from t1)) or exists(select 1 from t1 where (a not in (d,t1.a,t1.e) and t1.a in (t1.a,c,19))) and f not in (t1.d,t1.c,c)}
+} {32}
+do_test randexpr-2.1005 {
+  db eval {SELECT  -case coalesce((select case when f<>t1.d | c-(e)*t1.b and 17 in (select t1.b from t1 union select  -(t1.c) from t1) or t1.e>=11 and t1.f not between b and f or e not in (11,19,t1.e) and t1.c<=a then coalesce((select max(t1.f+t1.f) from t1 where  -t1.a<t1.f),t1.c) when e not in (t1.c,t1.d,t1.e) then t1.f else t1.e end-d from t1 where e>=13),e) when t1.e then c else t1.a end FROM t1 WHERE coalesce((select t1.f from t1 where (t1.e>=case (abs(11)/abs(t1.a)) when 11 then case t1.c when t1.a then t1.e else a end else t1.f end+t1.d) and (exists(select 1 from t1 where t1.b not in (t1.b,a,19))) or t1.a>=11),(select abs((~cast(avg(t1.b) AS integer)-~cast(avg((t1.b)) AS integer)* -count(*))+ -count(distinct t1.b)) from t1)*19)<=f and b in (select count(*) from t1 union select  -min(d) from t1)}
+} {}
+do_test randexpr-2.1006 {
+  db eval {SELECT  -case coalesce((select case when f<>t1.d | c-(e)*t1.b and 17 in (select t1.b from t1 union select  -(t1.c) from t1) or t1.e>=11 and t1.f not between b and f or e not in (11,19,t1.e) and t1.c<=a then coalesce((select max(t1.f+t1.f) from t1 where  -t1.a<t1.f),t1.c) when e not in (t1.c,t1.d,t1.e) then t1.f else t1.e end-d from t1 where e>=13),e) when t1.e then c else t1.a end FROM t1 WHERE NOT (coalesce((select t1.f from t1 where (t1.e>=case (abs(11)/abs(t1.a)) when 11 then case t1.c when t1.a then t1.e else a end else t1.f end+t1.d) and (exists(select 1 from t1 where t1.b not in (t1.b,a,19))) or t1.a>=11),(select abs((~cast(avg(t1.b) AS integer)-~cast(avg((t1.b)) AS integer)* -count(*))+ -count(distinct t1.b)) from t1)*19)<=f and b in (select count(*) from t1 union select  -min(d) from t1))}
+} {-100}
+do_test randexpr-2.1007 {
+  db eval {SELECT  -case coalesce((select case when f<>t1.d & c-(e)*t1.b and 17 in (select t1.b from t1 union select  -(t1.c) from t1) or t1.e>=11 and t1.f not between b and f or e not in (11,19,t1.e) and t1.c<=a then coalesce((select max(t1.f+t1.f) from t1 where  -t1.a<t1.f),t1.c) when e not in (t1.c,t1.d,t1.e) then t1.f else t1.e end-d from t1 where e>=13),e) when t1.e then c else t1.a end FROM t1 WHERE NOT (coalesce((select t1.f from t1 where (t1.e>=case (abs(11)/abs(t1.a)) when 11 then case t1.c when t1.a then t1.e else a end else t1.f end+t1.d) and (exists(select 1 from t1 where t1.b not in (t1.b,a,19))) or t1.a>=11),(select abs((~cast(avg(t1.b) AS integer)-~cast(avg((t1.b)) AS integer)* -count(*))+ -count(distinct t1.b)) from t1)*19)<=f and b in (select count(*) from t1 union select  -min(d) from t1))}
+} {-100}
+do_test randexpr-2.1008 {
+  db eval {SELECT case when exists(select 1 from t1 where exists(select 1 from t1 where  -case when t1.d<=coalesce((select t1.d | (f)*t1.a from t1 where not exists(select 1 from t1 where t1.f not in ((e),t1.e,13) or t1.a not between a and  -t1.d or (f) not between f and 13)),19) then e when (t1.f)<19 or e<=d then b else d end in (select case ~ -(cast(avg(b) AS integer)*cast(avg(t1.b) AS integer)*min(t1.f)) | count(*) when min(t1.c) then ( - -count(distinct  -d)) else count(*) end from t1 union select cast(avg(f) AS integer) from t1) and b<a)) then t1.b else t1.d end FROM t1 WHERE case case when case when not d<t1.a+t1.d+t1.c then ~f when ((not exists(select 1 from t1 where 19 in ( -(t1.f),17, -e)))) or f not between a and a then t1.f else 19 end in (select min(e)-~ -count(*)*(count(*))+count(*)*min(e) from t1 union select  -( -( -count(*))) from t1) then 11 when e<=f then 17 else 13 end+(19)+f when c then b else c end<>t1.b or 19<>t1.f}
+} {400}
+do_test randexpr-2.1009 {
+  db eval {SELECT case when exists(select 1 from t1 where exists(select 1 from t1 where  -case when t1.d<=coalesce((select t1.d | (f)*t1.a from t1 where not exists(select 1 from t1 where t1.f not in ((e),t1.e,13) or t1.a not between a and  -t1.d or (f) not between f and 13)),19) then e when (t1.f)<19 or e<=d then b else d end in (select case ~ -(cast(avg(b) AS integer)*cast(avg(t1.b) AS integer)*min(t1.f)) | count(*) when min(t1.c) then ( - -count(distinct  -d)) else count(*) end from t1 union select cast(avg(f) AS integer) from t1) and b<a)) then t1.b else t1.d end FROM t1 WHERE NOT (case case when case when not d<t1.a+t1.d+t1.c then ~f when ((not exists(select 1 from t1 where 19 in ( -(t1.f),17, -e)))) or f not between a and a then t1.f else 19 end in (select min(e)-~ -count(*)*(count(*))+count(*)*min(e) from t1 union select  -( -( -count(*))) from t1) then 11 when e<=f then 17 else 13 end+(19)+f when c then b else c end<>t1.b or 19<>t1.f)}
+} {}
+do_test randexpr-2.1010 {
+  db eval {SELECT case when exists(select 1 from t1 where exists(select 1 from t1 where  -case when t1.d<=coalesce((select t1.d & (f)*t1.a from t1 where not exists(select 1 from t1 where t1.f not in ((e),t1.e,13) or t1.a not between a and  -t1.d or (f) not between f and 13)),19) then e when (t1.f)<19 or e<=d then b else d end in (select case ~ -(cast(avg(b) AS integer)*cast(avg(t1.b) AS integer)*min(t1.f)) & count(*) when min(t1.c) then ( - -count(distinct  -d)) else count(*) end from t1 union select cast(avg(f) AS integer) from t1) and b<a)) then t1.b else t1.d end FROM t1 WHERE case case when case when not d<t1.a+t1.d+t1.c then ~f when ((not exists(select 1 from t1 where 19 in ( -(t1.f),17, -e)))) or f not between a and a then t1.f else 19 end in (select min(e)-~ -count(*)*(count(*))+count(*)*min(e) from t1 union select  -( -( -count(*))) from t1) then 11 when e<=f then 17 else 13 end+(19)+f when c then b else c end<>t1.b or 19<>t1.f}
+} {400}
+do_test randexpr-2.1011 {
+  db eval {SELECT case when ~+11<>f then case e when 11 then coalesce((select case d when t1.e-coalesce((select a+t1.c from t1 where (d) in (select +min(t1.f)+count(*) from t1 union select count(distinct t1.e) from t1)),t1.f) then t1.c else d end from t1 where t1.f in (select t1.f from t1 union select b from t1) or (t1.a not in ( -a,t1.a,t1.b))),t1.c) else t1.f end-t1.f when not exists(select 1 from t1 where b between f and t1.a) then t1.c else t1.f end FROM t1 WHERE t1.a<=coalesce((select max(b) from t1 where coalesce((select t1.c*case when coalesce((select max((select count(*) from t1)) from t1 where not not exists(select 1 from t1 where case t1.b | a when t1.f then c else 11 end<>f and 13>=13 and f between t1.b and c)),13)=case e when a then 19 else d end then t1.b when t1.a not in (a,t1.b,a) then e else b end-d from t1 where t1.f between t1.d and t1.e),e)>t1.f),17)+t1.f}
+} {0}
+do_test randexpr-2.1012 {
+  db eval {SELECT case when ~+11<>f then case e when 11 then coalesce((select case d when t1.e-coalesce((select a+t1.c from t1 where (d) in (select +min(t1.f)+count(*) from t1 union select count(distinct t1.e) from t1)),t1.f) then t1.c else d end from t1 where t1.f in (select t1.f from t1 union select b from t1) or (t1.a not in ( -a,t1.a,t1.b))),t1.c) else t1.f end-t1.f when not exists(select 1 from t1 where b between f and t1.a) then t1.c else t1.f end FROM t1 WHERE NOT (t1.a<=coalesce((select max(b) from t1 where coalesce((select t1.c*case when coalesce((select max((select count(*) from t1)) from t1 where not not exists(select 1 from t1 where case t1.b | a when t1.f then c else 11 end<>f and 13>=13 and f between t1.b and c)),13)=case e when a then 19 else d end then t1.b when t1.a not in (a,t1.b,a) then e else b end-d from t1 where t1.f between t1.d and t1.e),e)>t1.f),17)+t1.f)}
+} {}
+do_test randexpr-2.1013 {
+  db eval {SELECT (abs(d)/abs(t1.f++(select cast(avg(coalesce((select max(b) from t1 where case when t1.a*+(abs( -t1.b)/abs((select cast(avg(13) AS integer) from t1)))<=(t1.c-t1.d- -t1.c) then case d when 17 then  -t1.d else f end when t1.b between t1.b and t1.b then a else t1.d end in (select count(*) from t1 union select abs(cast(avg(13) AS integer)) | min(t1.c) from t1) or ((13))>=b),17)) AS integer) from t1)+13)) FROM t1 WHERE coalesce((select +t1.a from t1 where not exists(select 1 from t1 where (select cast(avg(13) AS integer) from t1)<=(abs( -11)/abs(t1.f))*coalesce((select t1.e from t1 where not t1.f in (select max(+b-t1.d) from t1 union select + -(abs(cast(avg((t1.b)) AS integer)))-+count(*)-(min(13)) from t1)),d+t1.d*t1.d) | (17)-t1.b)),f) in (select max(t1.c) from t1 union select count(distinct f) from t1)}
+} {}
+do_test randexpr-2.1014 {
+  db eval {SELECT (abs(d)/abs(t1.f++(select cast(avg(coalesce((select max(b) from t1 where case when t1.a*+(abs( -t1.b)/abs((select cast(avg(13) AS integer) from t1)))<=(t1.c-t1.d- -t1.c) then case d when 17 then  -t1.d else f end when t1.b between t1.b and t1.b then a else t1.d end in (select count(*) from t1 union select abs(cast(avg(13) AS integer)) | min(t1.c) from t1) or ((13))>=b),17)) AS integer) from t1)+13)) FROM t1 WHERE NOT (coalesce((select +t1.a from t1 where not exists(select 1 from t1 where (select cast(avg(13) AS integer) from t1)<=(abs( -11)/abs(t1.f))*coalesce((select t1.e from t1 where not t1.f in (select max(+b-t1.d) from t1 union select + -(abs(cast(avg((t1.b)) AS integer)))-+count(*)-(min(13)) from t1)),d+t1.d*t1.d) | (17)-t1.b)),f) in (select max(t1.c) from t1 union select count(distinct f) from t1))}
+} {0}
+do_test randexpr-2.1015 {
+  db eval {SELECT (abs(d)/abs(t1.f++(select cast(avg(coalesce((select max(b) from t1 where case when t1.a*+(abs( -t1.b)/abs((select cast(avg(13) AS integer) from t1)))<=(t1.c-t1.d- -t1.c) then case d when 17 then  -t1.d else f end when t1.b between t1.b and t1.b then a else t1.d end in (select count(*) from t1 union select abs(cast(avg(13) AS integer)) & min(t1.c) from t1) or ((13))>=b),17)) AS integer) from t1)+13)) FROM t1 WHERE NOT (coalesce((select +t1.a from t1 where not exists(select 1 from t1 where (select cast(avg(13) AS integer) from t1)<=(abs( -11)/abs(t1.f))*coalesce((select t1.e from t1 where not t1.f in (select max(+b-t1.d) from t1 union select + -(abs(cast(avg((t1.b)) AS integer)))-+count(*)-(min(13)) from t1)),d+t1.d*t1.d) | (17)-t1.b)),f) in (select max(t1.c) from t1 union select count(distinct f) from t1))}
+} {0}
+do_test randexpr-2.1016 {
+  db eval {SELECT case t1.a when (select ~max(coalesce((select (t1.b-a*+t1.c-t1.e) from t1 where not 11*t1.f++t1.f-t1.a*f*+t1.e*t1.b>17 and 19+e not in (t1.c,t1.b,a)),19)) from t1) then 19*11 else d end | (17) | t1.d FROM t1 WHERE exists(select 1 from t1 where coalesce((select max(13) from t1 where t1.e not in (d,13-19,17) or e*19=d or ((t1.a< -t1.a or 11- -t1.d-case when 13<( -t1.e) then a else e end*t1.b+t1.e in (select t1.d from t1 union select t1.e from t1) and 19<>d))),b)+11*11=t1.e)}
+} {}
+do_test randexpr-2.1017 {
+  db eval {SELECT case t1.a when (select ~max(coalesce((select (t1.b-a*+t1.c-t1.e) from t1 where not 11*t1.f++t1.f-t1.a*f*+t1.e*t1.b>17 and 19+e not in (t1.c,t1.b,a)),19)) from t1) then 19*11 else d end | (17) | t1.d FROM t1 WHERE NOT (exists(select 1 from t1 where coalesce((select max(13) from t1 where t1.e not in (d,13-19,17) or e*19=d or ((t1.a< -t1.a or 11- -t1.d-case when 13<( -t1.e) then a else e end*t1.b+t1.e in (select t1.d from t1 union select t1.e from t1) and 19<>d))),b)+11*11=t1.e))}
+} {401}
+do_test randexpr-2.1018 {
+  db eval {SELECT case t1.a when (select ~max(coalesce((select (t1.b-a*+t1.c-t1.e) from t1 where not 11*t1.f++t1.f-t1.a*f*+t1.e*t1.b>17 and 19+e not in (t1.c,t1.b,a)),19)) from t1) then 19*11 else d end & (17) & t1.d FROM t1 WHERE NOT (exists(select 1 from t1 where coalesce((select max(13) from t1 where t1.e not in (d,13-19,17) or e*19=d or ((t1.a< -t1.a or 11- -t1.d-case when 13<( -t1.e) then a else e end*t1.b+t1.e in (select t1.d from t1 union select t1.e from t1) and 19<>d))),b)+11*11=t1.e))}
+} {16}
+do_test randexpr-2.1019 {
+  db eval {SELECT t1.a-coalesce((select 11-case when 11<19-f+t1.a then a | (t1.a+++(select cast(avg((abs(t1.d | e)/abs((abs(t1.a)/abs(13))))) AS integer)-max(a) from t1)+e+13*19+t1.a-c) else 13 end+t1.e-19 from t1 where 13>t1.f),e) FROM t1 WHERE ~(abs((select max( -case when d+(11)*d between coalesce((select 11 from t1 where (t1.f)=e),d*f) and t1.e then d-case when a<> -17+(abs(t1.d)/abs(t1.f)) then t1.f else t1.e end*11+c-(c) else d end) from t1)*t1.e)/abs((t1.f)))-f<>11}
+} {-400}
+do_test randexpr-2.1020 {
+  db eval {SELECT t1.a-coalesce((select 11-case when 11<19-f+t1.a then a | (t1.a+++(select cast(avg((abs(t1.d | e)/abs((abs(t1.a)/abs(13))))) AS integer)-max(a) from t1)+e+13*19+t1.a-c) else 13 end+t1.e-19 from t1 where 13>t1.f),e) FROM t1 WHERE NOT (~(abs((select max( -case when d+(11)*d between coalesce((select 11 from t1 where (t1.f)=e),d*f) and t1.e then d-case when a<> -17+(abs(t1.d)/abs(t1.f)) then t1.f else t1.e end*11+c-(c) else d end) from t1)*t1.e)/abs((t1.f)))-f<>11)}
+} {}
+do_test randexpr-2.1021 {
+  db eval {SELECT t1.a-coalesce((select 11-case when 11<19-f+t1.a then a & (t1.a+++(select cast(avg((abs(t1.d & e)/abs((abs(t1.a)/abs(13))))) AS integer)-max(a) from t1)+e+13*19+t1.a-c) else 13 end+t1.e-19 from t1 where 13>t1.f),e) FROM t1 WHERE ~(abs((select max( -case when d+(11)*d between coalesce((select 11 from t1 where (t1.f)=e),d*f) and t1.e then d-case when a<> -17+(abs(t1.d)/abs(t1.f)) then t1.f else t1.e end*11+c-(c) else d end) from t1)*t1.e)/abs((t1.f)))-f<>11}
+} {-400}
+do_test randexpr-2.1022 {
+  db eval {SELECT d | (select (cast(avg((abs(case when b*(abs((abs(case f when 17 then t1.e else t1.c end)/abs( -d)))/abs(t1.c)) in (d,a,a) then 19 when (exists(select 1 from t1 where t1.c=t1.a) or a<>d) then a else c end)/abs(t1.e))-17) AS integer)* -min(19)-count(distinct a)-+count(distinct 17)*min(t1.a)+ -cast(avg(t1.a) AS integer)- -max(17) | max(e)) from t1) FROM t1 WHERE  -f-t1.f++e+case when not (((select abs(count(*)) from t1)) not in ((case when (t1.b>t1.c) then t1.b else f end),e,13)) and not exists(select 1 from t1 where 11 in (select t1.f from t1 union select ((t1.f)) from t1)) then (t1.e)+c-c+c when  -b in (13,19,t1.c) then 17 else 13 end-d | t1.a not in (a,b,b)}
+} {511}
+do_test randexpr-2.1023 {
+  db eval {SELECT d | (select (cast(avg((abs(case when b*(abs((abs(case f when 17 then t1.e else t1.c end)/abs( -d)))/abs(t1.c)) in (d,a,a) then 19 when (exists(select 1 from t1 where t1.c=t1.a) or a<>d) then a else c end)/abs(t1.e))-17) AS integer)* -min(19)-count(distinct a)-+count(distinct 17)*min(t1.a)+ -cast(avg(t1.a) AS integer)- -max(17) | max(e)) from t1) FROM t1 WHERE NOT ( -f-t1.f++e+case when not (((select abs(count(*)) from t1)) not in ((case when (t1.b>t1.c) then t1.b else f end),e,13)) and not exists(select 1 from t1 where 11 in (select t1.f from t1 union select ((t1.f)) from t1)) then (t1.e)+c-c+c when  -b in (13,19,t1.c) then 17 else 13 end-d | t1.a not in (a,b,b))}
+} {}
+do_test randexpr-2.1024 {
+  db eval {SELECT d & (select (cast(avg((abs(case when b*(abs((abs(case f when 17 then t1.e else t1.c end)/abs( -d)))/abs(t1.c)) in (d,a,a) then 19 when (exists(select 1 from t1 where t1.c=t1.a) or a<>d) then a else c end)/abs(t1.e))-17) AS integer)* -min(19)-count(distinct a)-+count(distinct 17)*min(t1.a)+ -cast(avg(t1.a) AS integer)- -max(17) & max(e)) from t1) FROM t1 WHERE  -f-t1.f++e+case when not (((select abs(count(*)) from t1)) not in ((case when (t1.b>t1.c) then t1.b else f end),e,13)) and not exists(select 1 from t1 where 11 in (select t1.f from t1 union select ((t1.f)) from t1)) then (t1.e)+c-c+c when  -b in (13,19,t1.c) then 17 else 13 end-d | t1.a not in (a,b,b)}
+} {128}
+do_test randexpr-2.1025 {
+  db eval {SELECT 11-(select min((abs(e)/abs(f*t1.e*c+17+~case when f | 11 between (select case  -max(19) when (cast(avg(t1.a) AS integer)) then count(distinct t1.f) else count(*) end from t1) and coalesce((select 13 from t1 where a<=(t1.d)),f)-a then t1.a when f in (select 17 from t1 union select  -b from t1) and t1.d<a or d<>(17) or 19>=d then (f) else 11 end))) from t1) FROM t1 WHERE e in (e, -17*t1.c*17,e)}
+} {11}
+do_test randexpr-2.1026 {
+  db eval {SELECT 11-(select min((abs(e)/abs(f*t1.e*c+17+~case when f | 11 between (select case  -max(19) when (cast(avg(t1.a) AS integer)) then count(distinct t1.f) else count(*) end from t1) and coalesce((select 13 from t1 where a<=(t1.d)),f)-a then t1.a when f in (select 17 from t1 union select  -b from t1) and t1.d<a or d<>(17) or 19>=d then (f) else 11 end))) from t1) FROM t1 WHERE NOT (e in (e, -17*t1.c*17,e))}
+} {}
+do_test randexpr-2.1027 {
+  db eval {SELECT 11-(select min((abs(e)/abs(f*t1.e*c+17+~case when f & 11 between (select case  -max(19) when (cast(avg(t1.a) AS integer)) then count(distinct t1.f) else count(*) end from t1) and coalesce((select 13 from t1 where a<=(t1.d)),f)-a then t1.a when f in (select 17 from t1 union select  -b from t1) and t1.d<a or d<>(17) or 19>=d then (f) else 11 end))) from t1) FROM t1 WHERE e in (e, -17*t1.c*17,e)}
+} {11}
+do_test randexpr-2.1028 {
+  db eval {SELECT coalesce((select max( -t1.d-f+~t1.d*t1.b) from t1 where (select ~+min(t1.f)+abs(min(+(select cast(avg((b)) AS integer) from t1)-d*d))-max(f)-count(distinct 19) | count(*)*count(*) from t1)>c),case 13 when +t1.c-t1.c-t1.a then c else c end*d) FROM t1 WHERE ((t1.b>=case when not exists(select 1 from t1 where not exists(select 1 from t1 where not exists(select 1 from t1 where e>=t1.a or (coalesce((select max(coalesce((select case when a in (select t1.d from t1 union select t1.c from t1) then a when  -b in (17,c,t1.f) then f else b end from t1 where not exists(select 1 from t1 where f<=13)),17)) from t1 where t1.f>=t1.b),d) between t1.f and 11) or t1.b between 13 and t1.b))) then a when e<=17 then t1.b+ -~11 else a end and not e>= - -b or 13 not in (c,f,11)) and d not between 11 and t1.a)}
+} {-81200}
+do_test randexpr-2.1029 {
+  db eval {SELECT coalesce((select max( -t1.d-f+~t1.d*t1.b) from t1 where (select ~+min(t1.f)+abs(min(+(select cast(avg((b)) AS integer) from t1)-d*d))-max(f)-count(distinct 19) | count(*)*count(*) from t1)>c),case 13 when +t1.c-t1.c-t1.a then c else c end*d) FROM t1 WHERE NOT (((t1.b>=case when not exists(select 1 from t1 where not exists(select 1 from t1 where not exists(select 1 from t1 where e>=t1.a or (coalesce((select max(coalesce((select case when a in (select t1.d from t1 union select t1.c from t1) then a when  -b in (17,c,t1.f) then f else b end from t1 where not exists(select 1 from t1 where f<=13)),17)) from t1 where t1.f>=t1.b),d) between t1.f and 11) or t1.b between 13 and t1.b))) then a when e<=17 then t1.b+ -~11 else a end and not e>= - -b or 13 not in (c,f,11)) and d not between 11 and t1.a))}
+} {}
+do_test randexpr-2.1030 {
+  db eval {SELECT coalesce((select max( -t1.d-f+~t1.d*t1.b) from t1 where (select ~+min(t1.f)+abs(min(+(select cast(avg((b)) AS integer) from t1)-d*d))-max(f)-count(distinct 19) & count(*)*count(*) from t1)>c),case 13 when +t1.c-t1.c-t1.a then c else c end*d) FROM t1 WHERE ((t1.b>=case when not exists(select 1 from t1 where not exists(select 1 from t1 where not exists(select 1 from t1 where e>=t1.a or (coalesce((select max(coalesce((select case when a in (select t1.d from t1 union select t1.c from t1) then a when  -b in (17,c,t1.f) then f else b end from t1 where not exists(select 1 from t1 where f<=13)),17)) from t1 where t1.f>=t1.b),d) between t1.f and 11) or t1.b between 13 and t1.b))) then a when e<=17 then t1.b+ -~11 else a end and not e>= - -b or 13 not in (c,f,11)) and d not between 11 and t1.a)}
+} {120000}
+do_test randexpr-2.1031 {
+  db eval {SELECT case when t1.d<>coalesce((select 13 from t1 where (d in (select case when (13<>t1.a*d-19-+11*13-t1.c) then case when t1.c=d then e else t1.b end when not exists(select 1 from t1 where 17<>t1.b) then t1.e else t1.e end | t1.a+t1.e from t1 union select t1.d from t1))),t1.f) or a> -t1.e then 11 else 17 end*d FROM t1 WHERE t1.a-d<=d-(abs(coalesce((select b from t1 where ~e<case when (case when case when d>=13 then t1.d else (t1.c) end not between t1.a and 13 then a when (17) not between 11 and t1.c then a else a end) not between 13 and t1.d then 13 else a end),19))/abs(t1.e))+t1.c+t1.e*b+c or ((17 in (select f from t1 union select t1.e from t1)))}
+} {4400}
+do_test randexpr-2.1032 {
+  db eval {SELECT case when t1.d<>coalesce((select 13 from t1 where (d in (select case when (13<>t1.a*d-19-+11*13-t1.c) then case when t1.c=d then e else t1.b end when not exists(select 1 from t1 where 17<>t1.b) then t1.e else t1.e end | t1.a+t1.e from t1 union select t1.d from t1))),t1.f) or a> -t1.e then 11 else 17 end*d FROM t1 WHERE NOT (t1.a-d<=d-(abs(coalesce((select b from t1 where ~e<case when (case when case when d>=13 then t1.d else (t1.c) end not between t1.a and 13 then a when (17) not between 11 and t1.c then a else a end) not between 13 and t1.d then 13 else a end),19))/abs(t1.e))+t1.c+t1.e*b+c or ((17 in (select f from t1 union select t1.e from t1))))}
+} {}
+do_test randexpr-2.1033 {
+  db eval {SELECT case when t1.d<>coalesce((select 13 from t1 where (d in (select case when (13<>t1.a*d-19-+11*13-t1.c) then case when t1.c=d then e else t1.b end when not exists(select 1 from t1 where 17<>t1.b) then t1.e else t1.e end & t1.a+t1.e from t1 union select t1.d from t1))),t1.f) or a> -t1.e then 11 else 17 end*d FROM t1 WHERE t1.a-d<=d-(abs(coalesce((select b from t1 where ~e<case when (case when case when d>=13 then t1.d else (t1.c) end not between t1.a and 13 then a when (17) not between 11 and t1.c then a else a end) not between 13 and t1.d then 13 else a end),19))/abs(t1.e))+t1.c+t1.e*b+c or ((17 in (select f from t1 union select t1.e from t1)))}
+} {4400}
+do_test randexpr-2.1034 {
+  db eval {SELECT coalesce((select (abs(c)/abs(case when 13<=11 then t1.a when case t1.d when (11) then coalesce((select coalesce((select d-17 from t1 where t1.e=a),11) from t1 where 13 in (select t1.e from t1 union select c from t1)),19) else d end>=t1.f or 11 in (select cast(avg(t1.f) AS integer) from t1 union select ( - -count(*)) from t1) and t1.c between 13 and  -b then f else e end)) from t1 where d<=(19)),d)-t1.b FROM t1 WHERE 17>=case when t1.c not in (f,t1.a,c*17*a | t1.c-~t1.d+(+coalesce((select max(case when exists(select 1 from t1 where (t1.e in (select  -t1.e from t1 union select t1.c from t1))) then t1.b else t1.b*t1.b end) from t1 where not exists(select 1 from t1 where 17=t1.a)),d))+t1.e | (13)*t1.e+c) and e in (select  -c from t1 union select 17 from t1) then t1.d*13 else c end- -e}
+} {}
+do_test randexpr-2.1035 {
+  db eval {SELECT coalesce((select (abs(c)/abs(case when 13<=11 then t1.a when case t1.d when (11) then coalesce((select coalesce((select d-17 from t1 where t1.e=a),11) from t1 where 13 in (select t1.e from t1 union select c from t1)),19) else d end>=t1.f or 11 in (select cast(avg(t1.f) AS integer) from t1 union select ( - -count(*)) from t1) and t1.c between 13 and  -b then f else e end)) from t1 where d<=(19)),d)-t1.b FROM t1 WHERE NOT (17>=case when t1.c not in (f,t1.a,c*17*a | t1.c-~t1.d+(+coalesce((select max(case when exists(select 1 from t1 where (t1.e in (select  -t1.e from t1 union select t1.c from t1))) then t1.b else t1.b*t1.b end) from t1 where not exists(select 1 from t1 where 17=t1.a)),d))+t1.e | (13)*t1.e+c) and e in (select  -c from t1 union select 17 from t1) then t1.d*13 else c end- -e)}
+} {200}
+do_test randexpr-2.1036 {
+  db eval {SELECT (abs(case when t1.a in (select case when d=(select ~cast(avg(t1.a) AS integer) | ~+min(17*(abs(19)/abs(t1.a))) from t1) or 13 in (select count(distinct t1.b | 11) from t1 union select count(*) | count(distinct c) | count(distinct 17) from t1) and not b<=17 then t1.a when 11=t1.f then (abs(t1.c)/abs(11)) else f end from t1 union select c from t1) then t1.c else a end)/abs(t1.d))-t1.d FROM t1 WHERE ((abs(e)/abs(t1.a* -(coalesce((select max(t1.b-t1.d) from t1 where f>=13),~a+ -a)) | case when not exists(select 1 from t1 where coalesce((select max(c) from t1 where 19-t1.a | e<=17),~( -t1.a)) in (select f from t1 union select t1.d from t1)) then t1.d else (t1.c) end)) in (17,f,t1.a)) or 19=13 or 19=17}
+} {}
+do_test randexpr-2.1037 {
+  db eval {SELECT (abs(case when t1.a in (select case when d=(select ~cast(avg(t1.a) AS integer) | ~+min(17*(abs(19)/abs(t1.a))) from t1) or 13 in (select count(distinct t1.b | 11) from t1 union select count(*) | count(distinct c) | count(distinct 17) from t1) and not b<=17 then t1.a when 11=t1.f then (abs(t1.c)/abs(11)) else f end from t1 union select c from t1) then t1.c else a end)/abs(t1.d))-t1.d FROM t1 WHERE NOT (((abs(e)/abs(t1.a* -(coalesce((select max(t1.b-t1.d) from t1 where f>=13),~a+ -a)) | case when not exists(select 1 from t1 where coalesce((select max(c) from t1 where 19-t1.a | e<=17),~( -t1.a)) in (select f from t1 union select t1.d from t1)) then t1.d else (t1.c) end)) in (17,f,t1.a)) or 19=13 or 19=17)}
+} {-400}
+do_test randexpr-2.1038 {
+  db eval {SELECT (abs(case when t1.a in (select case when d=(select ~cast(avg(t1.a) AS integer) & ~+min(17*(abs(19)/abs(t1.a))) from t1) or 13 in (select count(distinct t1.b & 11) from t1 union select count(*) & count(distinct c) & count(distinct 17) from t1) and not b<=17 then t1.a when 11=t1.f then (abs(t1.c)/abs(11)) else f end from t1 union select c from t1) then t1.c else a end)/abs(t1.d))-t1.d FROM t1 WHERE NOT (((abs(e)/abs(t1.a* -(coalesce((select max(t1.b-t1.d) from t1 where f>=13),~a+ -a)) | case when not exists(select 1 from t1 where coalesce((select max(c) from t1 where 19-t1.a | e<=17),~( -t1.a)) in (select f from t1 union select t1.d from t1)) then t1.d else (t1.c) end)) in (17,f,t1.a)) or 19=13 or 19=17)}
+} {-400}
+do_test randexpr-2.1039 {
+  db eval {SELECT case when f>coalesce((select c from t1 where coalesce((select max(c+c) from t1 where t1.f in (select  - -abs(max(19))+(min(a)) from t1 union select count(distinct  -t1.d) from t1)),e)>=e),t1.f) | t1.a | 19 or (t1.c) not in (19, - -t1.f,t1.c) or exists(select 1 from t1 where t1.b not between t1.a and  -11) then coalesce((select  -b from t1 where  -t1.a in (select c from t1 union select 17 from t1)),t1.d) when t1.a=c then c else t1.e end FROM t1 WHERE t1.e in (select +cast(avg(f) AS integer) from t1 union select case +max(19) | count(*) when count(*)*+count(*) then ~+count(*) else count(*) end from t1)}
+} {}
+do_test randexpr-2.1040 {
+  db eval {SELECT case when f>coalesce((select c from t1 where coalesce((select max(c+c) from t1 where t1.f in (select  - -abs(max(19))+(min(a)) from t1 union select count(distinct  -t1.d) from t1)),e)>=e),t1.f) | t1.a | 19 or (t1.c) not in (19, - -t1.f,t1.c) or exists(select 1 from t1 where t1.b not between t1.a and  -11) then coalesce((select  -b from t1 where  -t1.a in (select c from t1 union select 17 from t1)),t1.d) when t1.a=c then c else t1.e end FROM t1 WHERE NOT (t1.e in (select +cast(avg(f) AS integer) from t1 union select case +max(19) | count(*) when count(*)*+count(*) then ~+count(*) else count(*) end from t1))}
+} {400}
+do_test randexpr-2.1041 {
+  db eval {SELECT case when f>coalesce((select c from t1 where coalesce((select max(c+c) from t1 where t1.f in (select  - -abs(max(19))+(min(a)) from t1 union select count(distinct  -t1.d) from t1)),e)>=e),t1.f) & t1.a & 19 or (t1.c) not in (19, - -t1.f,t1.c) or exists(select 1 from t1 where t1.b not between t1.a and  -11) then coalesce((select  -b from t1 where  -t1.a in (select c from t1 union select 17 from t1)),t1.d) when t1.a=c then c else t1.e end FROM t1 WHERE NOT (t1.e in (select +cast(avg(f) AS integer) from t1 union select case +max(19) | count(*) when count(*)*+count(*) then ~+count(*) else count(*) end from t1))}
+} {400}
+do_test randexpr-2.1042 {
+  db eval {SELECT +case t1.d when d then t1.f else +t1.b+(select  -count(distinct coalesce((select max(c) from t1 where exists(select 1 from t1 where 17 not between d and e)),case when t1.f+f-~17<>d then case when exists(select 1 from t1 where t1.d=(13)) then t1.e when c=t1.e then  -a else f end when not 17>11 then t1.b else e end))-max(t1.d) from t1)+ -e-(t1.d) end-11-b FROM t1 WHERE e-case +t1.e when e*e then t1.d else case (abs(case when (abs(case when t1.a+11+t1.a>11-t1.e then +t1.f when e<=a then (c) else b end)/abs(13))*b between b and t1.f then  -a else t1.c end+d)/abs(a)) when d then 13 else t1.e end end+e+t1.d<=c}
+} {}
+do_test randexpr-2.1043 {
+  db eval {SELECT +case t1.d when d then t1.f else +t1.b+(select  -count(distinct coalesce((select max(c) from t1 where exists(select 1 from t1 where 17 not between d and e)),case when t1.f+f-~17<>d then case when exists(select 1 from t1 where t1.d=(13)) then t1.e when c=t1.e then  -a else f end when not 17>11 then t1.b else e end))-max(t1.d) from t1)+ -e-(t1.d) end-11-b FROM t1 WHERE NOT (e-case +t1.e when e*e then t1.d else case (abs(case when (abs(case when t1.a+11+t1.a>11-t1.e then +t1.f when e<=a then (c) else b end)/abs(13))*b between b and t1.f then  -a else t1.c end+d)/abs(a)) when d then 13 else t1.e end end+e+t1.d<=c)}
+} {389}
+do_test randexpr-2.1044 {
+  db eval {SELECT + -(select count(*) from t1)*(t1.b)-a-t1.e+17*coalesce((select max(13) from t1 where not exists(select 1 from t1 where case when t1.f<coalesce((select a from t1 where t1.a not in (t1.b,t1.a,19)),t1.a)*f and not exists(select 1 from t1 where exists(select 1 from t1 where (t1.d)=19)) then +t1.d when c<>t1.d then 17 else  -17 end* -(t1.f)=(t1.a))), -d)*t1.f*t1.a* -e FROM t1 WHERE not exists(select 1 from t1 where ~case when d+ -t1.c+11*t1.e-t1.c*a*(t1.b)<=~~t1.b then f else case b when t1.b*t1.c-t1.d then c-b else  -t1.c end end-13+f>=case when d not between t1.c and (t1.b) then t1.e else t1.c end) or t1.d in (d,t1.c,t1.c)}
+} {-6630000800}
+do_test randexpr-2.1045 {
+  db eval {SELECT + -(select count(*) from t1)*(t1.b)-a-t1.e+17*coalesce((select max(13) from t1 where not exists(select 1 from t1 where case when t1.f<coalesce((select a from t1 where t1.a not in (t1.b,t1.a,19)),t1.a)*f and not exists(select 1 from t1 where exists(select 1 from t1 where (t1.d)=19)) then +t1.d when c<>t1.d then 17 else  -17 end* -(t1.f)=(t1.a))), -d)*t1.f*t1.a* -e FROM t1 WHERE NOT (not exists(select 1 from t1 where ~case when d+ -t1.c+11*t1.e-t1.c*a*(t1.b)<=~~t1.b then f else case b when t1.b*t1.c-t1.d then c-b else  -t1.c end end-13+f>=case when d not between t1.c and (t1.b) then t1.e else t1.c end) or t1.d in (d,t1.c,t1.c))}
+} {}
+do_test randexpr-2.1046 {
+  db eval {SELECT (abs((select  -~~ -count(*)+++count(distinct c) from t1))/abs(coalesce((select e from t1 where (case when case when b not between case t1.d when f then  -t1.c else t1.e end and c then d when b=19 then t1.c else d end in (select max(13) from t1 union select count(distinct b) from t1) and t1.d not in (a,t1.b,a) or  -t1.d between 13 and e then 17+t1.e when 19 not between t1.f and 17 then t1.b else t1.a end in (17,(t1.e),t1.a))),b) | 17)) FROM t1 WHERE 11>t1.b}
+} {}
+do_test randexpr-2.1047 {
+  db eval {SELECT (abs((select  -~~ -count(*)+++count(distinct c) from t1))/abs(coalesce((select e from t1 where (case when case when b not between case t1.d when f then  -t1.c else t1.e end and c then d when b=19 then t1.c else d end in (select max(13) from t1 union select count(distinct b) from t1) and t1.d not in (a,t1.b,a) or  -t1.d between 13 and e then 17+t1.e when 19 not between t1.f and 17 then t1.b else t1.a end in (17,(t1.e),t1.a))),b) | 17)) FROM t1 WHERE NOT (11>t1.b)}
+} {0}
+do_test randexpr-2.1048 {
+  db eval {SELECT coalesce((select max(t1.d) from t1 where coalesce((select e from t1 where case when (c)<>11+case f when t1.a then (select abs( -cast(avg(t1.c) AS integer)) | max((17)) | cast(avg(t1.d) AS integer)-count(distinct e) from t1) else 17*(abs(case t1.d when t1.b then a else b end)/abs(b)) end- -c-17+c*t1.c- -t1.d then t1.c else e end>=f),d)<>t1.a), -t1.f) FROM t1 WHERE not a<=17-t1.f}
+} {400}
+do_test randexpr-2.1049 {
+  db eval {SELECT coalesce((select max(t1.d) from t1 where coalesce((select e from t1 where case when (c)<>11+case f when t1.a then (select abs( -cast(avg(t1.c) AS integer)) | max((17)) | cast(avg(t1.d) AS integer)-count(distinct e) from t1) else 17*(abs(case t1.d when t1.b then a else b end)/abs(b)) end- -c-17+c*t1.c- -t1.d then t1.c else e end>=f),d)<>t1.a), -t1.f) FROM t1 WHERE NOT (not a<=17-t1.f)}
+} {}
+do_test randexpr-2.1050 {
+  db eval {SELECT coalesce((select max(t1.d) from t1 where coalesce((select e from t1 where case when (c)<>11+case f when t1.a then (select abs( -cast(avg(t1.c) AS integer)) & max((17)) & cast(avg(t1.d) AS integer)-count(distinct e) from t1) else 17*(abs(case t1.d when t1.b then a else b end)/abs(b)) end- -c-17+c*t1.c- -t1.d then t1.c else e end>=f),d)<>t1.a), -t1.f) FROM t1 WHERE not a<=17-t1.f}
+} {400}
+do_test randexpr-2.1051 {
+  db eval {SELECT coalesce((select coalesce((select ~d from t1 where t1.b-t1.c+13 not between t1.b and (abs(t1.a-case t1.c when t1.c | (select max((abs(case when (select count(*) from t1)<>(~t1.e-13*+d+d) then  -t1.e else  -t1.f end*13)/abs(f))-t1.f) from t1) then t1.f else t1.c end)/abs(c))),t1.e) from t1 where t1.f=f), - -11) FROM t1 WHERE case ((abs(t1.e)/abs(case b when ~17 then 19+(t1.d)+13 else case t1.a*17 when c then 19*case when c<>coalesce((select max(~a) from t1 where 19<>case case when t1.d in (select +count(distinct 11) from t1 union select ( -max(a)) from t1) then t1.f else b end when t1.f then d else t1.a end-t1.b),11) then t1.b else t1.d end else 11 end end))) when t1.b then 11 else t1.d end*t1.c= -t1.f}
+} {}
+do_test randexpr-2.1052 {
+  db eval {SELECT coalesce((select coalesce((select ~d from t1 where t1.b-t1.c+13 not between t1.b and (abs(t1.a-case t1.c when t1.c | (select max((abs(case when (select count(*) from t1)<>(~t1.e-13*+d+d) then  -t1.e else  -t1.f end*13)/abs(f))-t1.f) from t1) then t1.f else t1.c end)/abs(c))),t1.e) from t1 where t1.f=f), - -11) FROM t1 WHERE NOT (case ((abs(t1.e)/abs(case b when ~17 then 19+(t1.d)+13 else case t1.a*17 when c then 19*case when c<>coalesce((select max(~a) from t1 where 19<>case case when t1.d in (select +count(distinct 11) from t1 union select ( -max(a)) from t1) then t1.f else b end when t1.f then d else t1.a end-t1.b),11) then t1.b else t1.d end else 11 end end))) when t1.b then 11 else t1.d end*t1.c= -t1.f)}
+} {-401}
+do_test randexpr-2.1053 {
+  db eval {SELECT coalesce((select coalesce((select ~d from t1 where t1.b-t1.c+13 not between t1.b and (abs(t1.a-case t1.c when t1.c & (select max((abs(case when (select count(*) from t1)<>(~t1.e-13*+d+d) then  -t1.e else  -t1.f end*13)/abs(f))-t1.f) from t1) then t1.f else t1.c end)/abs(c))),t1.e) from t1 where t1.f=f), - -11) FROM t1 WHERE NOT (case ((abs(t1.e)/abs(case b when ~17 then 19+(t1.d)+13 else case t1.a*17 when c then 19*case when c<>coalesce((select max(~a) from t1 where 19<>case case when t1.d in (select +count(distinct 11) from t1 union select ( -max(a)) from t1) then t1.f else b end when t1.f then d else t1.a end-t1.b),11) then t1.b else t1.d end else 11 end end))) when t1.b then 11 else t1.d end*t1.c= -t1.f)}
+} {-401}
+do_test randexpr-2.1054 {
+  db eval {SELECT  -13-case when (not d<=11-t1.c*t1.e+t1.b) then case when t1.f | coalesce((select +d from t1 where t1.d= -c),(t1.a)) not between b and t1.a then t1.f+a when t1.a<11 and exists(select 1 from t1 where t1.f in (t1.b,17,11)) then b else 19 end when (t1.b between t1.d and e) then b else  -t1.c end FROM t1 WHERE case when b between case when coalesce((select t1.c-t1.c from t1 where 13*(select case min(11) when cast(avg(t1.c) AS integer) then (count(*)) else count(distinct 11) end+cast(avg( -f) AS integer) from t1)>=t1.a),t1.c) in ( -t1.c,d,b) then t1.e when f in (select e from t1 union select t1.d from t1) then f else c end and a and 13<>c and exists(select 1 from t1 where f<>c) then case when c in (11,b, -11) then t1.e else e end else 13 end<=t1.c}
+} {-713}
+do_test randexpr-2.1055 {
+  db eval {SELECT  -13-case when (not d<=11-t1.c*t1.e+t1.b) then case when t1.f | coalesce((select +d from t1 where t1.d= -c),(t1.a)) not between b and t1.a then t1.f+a when t1.a<11 and exists(select 1 from t1 where t1.f in (t1.b,17,11)) then b else 19 end when (t1.b between t1.d and e) then b else  -t1.c end FROM t1 WHERE NOT (case when b between case when coalesce((select t1.c-t1.c from t1 where 13*(select case min(11) when cast(avg(t1.c) AS integer) then (count(*)) else count(distinct 11) end+cast(avg( -f) AS integer) from t1)>=t1.a),t1.c) in ( -t1.c,d,b) then t1.e when f in (select e from t1 union select t1.d from t1) then f else c end and a and 13<>c and exists(select 1 from t1 where f<>c) then case when c in (11,b, -11) then t1.e else e end else 13 end<=t1.c)}
+} {}
+do_test randexpr-2.1056 {
+  db eval {SELECT  -13-case when (not d<=11-t1.c*t1.e+t1.b) then case when t1.f & coalesce((select +d from t1 where t1.d= -c),(t1.a)) not between b and t1.a then t1.f+a when t1.a<11 and exists(select 1 from t1 where t1.f in (t1.b,17,11)) then b else 19 end when (t1.b between t1.d and e) then b else  -t1.c end FROM t1 WHERE case when b between case when coalesce((select t1.c-t1.c from t1 where 13*(select case min(11) when cast(avg(t1.c) AS integer) then (count(*)) else count(distinct 11) end+cast(avg( -f) AS integer) from t1)>=t1.a),t1.c) in ( -t1.c,d,b) then t1.e when f in (select e from t1 union select t1.d from t1) then f else c end and a and 13<>c and exists(select 1 from t1 where f<>c) then case when c in (11,b, -11) then t1.e else e end else 13 end<=t1.c}
+} {-713}
+do_test randexpr-2.1057 {
+  db eval {SELECT t1.b | (abs( -(select ~ -~abs(case ~min((c* -b+c))+min(f) when ~abs(count(distinct 13))+(min(13)) then max(11) else count(*) end) from t1)-11 | +(abs(t1.d-t1.e)/abs(t1.b))-t1.f*19+t1.c*17)/abs(f))+t1.b FROM t1 WHERE (a between t1.e and  -13)}
+} {}
+do_test randexpr-2.1058 {
+  db eval {SELECT t1.b | (abs( -(select ~ -~abs(case ~min((c* -b+c))+min(f) when ~abs(count(distinct 13))+(min(13)) then max(11) else count(*) end) from t1)-11 | +(abs(t1.d-t1.e)/abs(t1.b))-t1.f*19+t1.c*17)/abs(f))+t1.b FROM t1 WHERE NOT ((a between t1.e and  -13))}
+} {200}
+do_test randexpr-2.1059 {
+  db eval {SELECT t1.b & (abs( -(select ~ -~abs(case ~min((c* -b+c))+min(f) when ~abs(count(distinct 13))+(min(13)) then max(11) else count(*) end) from t1)-11 & +(abs(t1.d-t1.e)/abs(t1.b))-t1.f*19+t1.c*17)/abs(f))+t1.b FROM t1 WHERE NOT ((a between t1.e and  -13))}
+} {192}
+do_test randexpr-2.1060 {
+  db eval {SELECT t1.c-case t1.b when t1.f-t1.b-f then +coalesce((select b from t1 where (t1.d in (select (select count(*)+abs(count(*)) | ~cast(avg(b | case when 11 between b and (f) then b when (19)>19 then 17 else t1.e end) AS integer) | min(d) from t1) from t1 union select 19 from t1))),(abs(c*c)/abs(11))-a-t1.c+t1.f-t1.c)+b else b end FROM t1 WHERE (t1.d)+t1.b<( -t1.b)}
+} {}
+do_test randexpr-2.1061 {
+  db eval {SELECT t1.c-case t1.b when t1.f-t1.b-f then +coalesce((select b from t1 where (t1.d in (select (select count(*)+abs(count(*)) | ~cast(avg(b | case when 11 between b and (f) then b when (19)>19 then 17 else t1.e end) AS integer) | min(d) from t1) from t1 union select 19 from t1))),(abs(c*c)/abs(11))-a-t1.c+t1.f-t1.c)+b else b end FROM t1 WHERE NOT ((t1.d)+t1.b<( -t1.b))}
+} {100}
+do_test randexpr-2.1062 {
+  db eval {SELECT t1.c-case t1.b when t1.f-t1.b-f then +coalesce((select b from t1 where (t1.d in (select (select count(*)+abs(count(*)) & ~cast(avg(b & case when 11 between b and (f) then b when (19)>19 then 17 else t1.e end) AS integer) & min(d) from t1) from t1 union select 19 from t1))),(abs(c*c)/abs(11))-a-t1.c+t1.f-t1.c)+b else b end FROM t1 WHERE NOT ((t1.d)+t1.b<( -t1.b))}
+} {100}
+do_test randexpr-2.1063 {
+  db eval {SELECT 17*(select (case case min(t1.d+( -d | case 11* -11*11 when 13 then t1.c else  -17 end)-d*t1.d)-count(*)-abs( -max(17)+~max(t1.b)) | +abs(cast(avg((a)) AS integer))+(count(*)) when  -max(17) then  -max(19) else (cast(avg(d) AS integer)) end when count(distinct t1.c) then min(b) else count(*) end) from t1) FROM t1 WHERE d>=(abs(coalesce((select max(d) from t1 where not not case when a in (select count(*)* -case +min(case when t1.e<t1.e then 11 else a end-19)*case count(*) when max(13) then count(*) else min(b) end | ( -cast(avg(b) AS integer)) when max(t1.d) then (cast(avg((t1.a)) AS integer)) else min(f) end |  -max(t1.d) from t1 union select  -min(c) from t1) then e else e end<(select max(t1.c) from t1)),c++t1.f*c))/abs(e))+t1.d}
+} {}
+do_test randexpr-2.1064 {
+  db eval {SELECT 17*(select (case case min(t1.d+( -d | case 11* -11*11 when 13 then t1.c else  -17 end)-d*t1.d)-count(*)-abs( -max(17)+~max(t1.b)) | +abs(cast(avg((a)) AS integer))+(count(*)) when  -max(17) then  -max(19) else (cast(avg(d) AS integer)) end when count(distinct t1.c) then min(b) else count(*) end) from t1) FROM t1 WHERE NOT (d>=(abs(coalesce((select max(d) from t1 where not not case when a in (select count(*)* -case +min(case when t1.e<t1.e then 11 else a end-19)*case count(*) when max(13) then count(*) else min(b) end | ( -cast(avg(b) AS integer)) when max(t1.d) then (cast(avg((t1.a)) AS integer)) else min(f) end |  -max(t1.d) from t1 union select  -min(c) from t1) then e else e end<(select max(t1.c) from t1)),c++t1.f*c))/abs(e))+t1.d)}
+} {17}
+do_test randexpr-2.1065 {
+  db eval {SELECT 17*(select (case case min(t1.d+( -d & case 11* -11*11 when 13 then t1.c else  -17 end)-d*t1.d)-count(*)-abs( -max(17)+~max(t1.b)) & +abs(cast(avg((a)) AS integer))+(count(*)) when  -max(17) then  -max(19) else (cast(avg(d) AS integer)) end when count(distinct t1.c) then min(b) else count(*) end) from t1) FROM t1 WHERE NOT (d>=(abs(coalesce((select max(d) from t1 where not not case when a in (select count(*)* -case +min(case when t1.e<t1.e then 11 else a end-19)*case count(*) when max(13) then count(*) else min(b) end | ( -cast(avg(b) AS integer)) when max(t1.d) then (cast(avg((t1.a)) AS integer)) else min(f) end |  -max(t1.d) from t1 union select  -min(c) from t1) then e else e end<(select max(t1.c) from t1)),c++t1.f*c))/abs(e))+t1.d)}
+} {17}
+do_test randexpr-2.1066 {
+  db eval {SELECT 11 | ~case case when e between 17 and coalesce((select max(((f-t1.f))) from t1 where d<>f),t1.f) and 11 not between 13 and 13 and ( -11<>c and t1.b>c) or 19<>t1.e and t1.b<=t1.f then +f*b when t1.d>=e then  -13 else t1.c end when b then (17) else t1.d end+a+f*a FROM t1 WHERE not exists(select 1 from t1 where a between t1.f and 17 or e>=(d)*19+t1.e*c)}
+} {59707}
+do_test randexpr-2.1067 {
+  db eval {SELECT 11 | ~case case when e between 17 and coalesce((select max(((f-t1.f))) from t1 where d<>f),t1.f) and 11 not between 13 and 13 and ( -11<>c and t1.b>c) or 19<>t1.e and t1.b<=t1.f then +f*b when t1.d>=e then  -13 else t1.c end when b then (17) else t1.d end+a+f*a FROM t1 WHERE NOT (not exists(select 1 from t1 where a between t1.f and 17 or e>=(d)*19+t1.e*c))}
+} {}
+do_test randexpr-2.1068 {
+  db eval {SELECT 11 & ~case case when e between 17 and coalesce((select max(((f-t1.f))) from t1 where d<>f),t1.f) and 11 not between 13 and 13 and ( -11<>c and t1.b>c) or 19<>t1.e and t1.b<=t1.f then +f*b when t1.d>=e then  -13 else t1.c end when b then (17) else t1.d end+a+f*a FROM t1 WHERE not exists(select 1 from t1 where a between t1.f and 17 or e>=(d)*19+t1.e*c)}
+} {3}
+do_test randexpr-2.1069 {
+  db eval {SELECT  -case when t1.d | ~b<>coalesce((select max(t1.c) from t1 where t1.c not between coalesce((select max(coalesce((select max(e) from t1 where 11 not in (case when 13 not between d and c then 17 when (t1.a) not in (e,b,b) then 19 else c end,a,t1.d)),b)+f) from t1 where t1.d not in (11,f,t1.e)),t1.b) and f),11) or 11<>(d) then  -f* -d else (e) end*f FROM t1 WHERE case f when 11 then coalesce((select b from t1 where 19+case when 17*t1.d-t1.f+t1.f between t1.d-case when +d=coalesce((select max(f) from t1 where e>t1.f),17) and c=t1.e and b not in (17,11,(t1.f)) then  -17 else t1.c end and c then  -t1.a else t1.d end+11*e not between t1.f and d),13)+t1.d else  -13 end=c}
+} {}
+do_test randexpr-2.1070 {
+  db eval {SELECT  -case when t1.d | ~b<>coalesce((select max(t1.c) from t1 where t1.c not between coalesce((select max(coalesce((select max(e) from t1 where 11 not in (case when 13 not between d and c then 17 when (t1.a) not in (e,b,b) then 19 else c end,a,t1.d)),b)+f) from t1 where t1.d not in (11,f,t1.e)),t1.b) and f),11) or 11<>(d) then  -f* -d else (e) end*f FROM t1 WHERE NOT (case f when 11 then coalesce((select b from t1 where 19+case when 17*t1.d-t1.f+t1.f between t1.d-case when +d=coalesce((select max(f) from t1 where e>t1.f),17) and c=t1.e and b not in (17,11,(t1.f)) then  -17 else t1.c end and c then  -t1.a else t1.d end+11*e not between t1.f and d),13)+t1.d else  -13 end=c)}
+} {-144000000}
+do_test randexpr-2.1071 {
+  db eval {SELECT  -case when t1.d & ~b<>coalesce((select max(t1.c) from t1 where t1.c not between coalesce((select max(coalesce((select max(e) from t1 where 11 not in (case when 13 not between d and c then 17 when (t1.a) not in (e,b,b) then 19 else c end,a,t1.d)),b)+f) from t1 where t1.d not in (11,f,t1.e)),t1.b) and f),11) or 11<>(d) then  -f* -d else (e) end*f FROM t1 WHERE NOT (case f when 11 then coalesce((select b from t1 where 19+case when 17*t1.d-t1.f+t1.f between t1.d-case when +d=coalesce((select max(f) from t1 where e>t1.f),17) and c=t1.e and b not in (17,11,(t1.f)) then  -17 else t1.c end and c then  -t1.a else t1.d end+11*e not between t1.f and d),13)+t1.d else  -13 end=c)}
+} {-144000000}
+do_test randexpr-2.1072 {
+  db eval {SELECT coalesce((select t1.b from t1 where not (t1.c>19) and 11<=+(abs(t1.b-19)/abs(a))+case when ((coalesce((select 13 from t1 where c in (b,t1.b,t1.d)),e))<>13) or f in ((t1.b),t1.e, -b) then 11+(c) else b end or b<>d),t1.f+t1.f+13) |  - -a FROM t1 WHERE 13 between t1.c and 13+~19+c+(select min(f-(abs(17)/abs((t1.e)))) from t1)}
+} {}
+do_test randexpr-2.1073 {
+  db eval {SELECT coalesce((select t1.b from t1 where not (t1.c>19) and 11<=+(abs(t1.b-19)/abs(a))+case when ((coalesce((select 13 from t1 where c in (b,t1.b,t1.d)),e))<>13) or f in ((t1.b),t1.e, -b) then 11+(c) else b end or b<>d),t1.f+t1.f+13) |  - -a FROM t1 WHERE NOT (13 between t1.c and 13+~19+c+(select min(f-(abs(17)/abs((t1.e)))) from t1))}
+} {236}
+do_test randexpr-2.1074 {
+  db eval {SELECT coalesce((select t1.b from t1 where not (t1.c>19) and 11<=+(abs(t1.b-19)/abs(a))+case when ((coalesce((select 13 from t1 where c in (b,t1.b,t1.d)),e))<>13) or f in ((t1.b),t1.e, -b) then 11+(c) else b end or b<>d),t1.f+t1.f+13) &  - -a FROM t1 WHERE NOT (13 between t1.c and 13+~19+c+(select min(f-(abs(17)/abs((t1.e)))) from t1))}
+} {64}
+do_test randexpr-2.1075 {
+  db eval {SELECT  -(coalesce((select max(coalesce((select t1.f from t1 where not exists(select 1 from t1 where (abs(+b+19+19)/abs(t1.b))<t1.b) or 19+f>=(select  -max(19) from t1)+t1.f),t1.e+t1.f)* -t1.e+19-f) from t1 where (( -t1.c<19) or d>=c)),t1.c))*c*((t1.b))-17 FROM t1 WHERE t1.e not between t1.f*c and t1.f+ -d}
+} {18034859983}
+do_test randexpr-2.1076 {
+  db eval {SELECT  -(coalesce((select max(coalesce((select t1.f from t1 where not exists(select 1 from t1 where (abs(+b+19+19)/abs(t1.b))<t1.b) or 19+f>=(select  -max(19) from t1)+t1.f),t1.e+t1.f)* -t1.e+19-f) from t1 where (( -t1.c<19) or d>=c)),t1.c))*c*((t1.b))-17 FROM t1 WHERE NOT (t1.e not between t1.f*c and t1.f+ -d)}
+} {}
+do_test randexpr-2.1077 {
+  db eval {SELECT case 17 when (t1.d)*coalesce((select (select case (cast(avg(c) AS integer)+max(case when (not d+ -t1.e not between 11 and  -f) then f when b<(11) then t1.b else 11 end))+count(distinct t1.c)*max(b) when  -min(e) |  -count(distinct t1.c) then cast(avg(e) AS integer) else count(*) end from t1) from t1 where case c when a then a else t1.d end-11<>19),t1.a)+t1.b then f else t1.f end FROM t1 WHERE not exists(select 1 from t1 where exists(select 1 from t1 where (abs(d)/abs((f*+coalesce((select  -~case when exists(select 1 from t1 where b<c) then t1.b else 17 end+case (select (min(coalesce((select b from t1 where 11<>t1.c or ((t1.c))<>e),(t1.e)))) from t1)*17 when e then a else t1.e end-t1.b-19 from t1 where t1.e in (select abs(+min(f)+cast(avg( -a) AS integer)) from t1 union select count(distinct c) from t1)),d))))<>f))}
+} {}
+do_test randexpr-2.1078 {
+  db eval {SELECT case 17 when (t1.d)*coalesce((select (select case (cast(avg(c) AS integer)+max(case when (not d+ -t1.e not between 11 and  -f) then f when b<(11) then t1.b else 11 end))+count(distinct t1.c)*max(b) when  -min(e) |  -count(distinct t1.c) then cast(avg(e) AS integer) else count(*) end from t1) from t1 where case c when a then a else t1.d end-11<>19),t1.a)+t1.b then f else t1.f end FROM t1 WHERE NOT (not exists(select 1 from t1 where exists(select 1 from t1 where (abs(d)/abs((f*+coalesce((select  -~case when exists(select 1 from t1 where b<c) then t1.b else 17 end+case (select (min(coalesce((select b from t1 where 11<>t1.c or ((t1.c))<>e),(t1.e)))) from t1)*17 when e then a else t1.e end-t1.b-19 from t1 where t1.e in (select abs(+min(f)+cast(avg( -a) AS integer)) from t1 union select count(distinct c) from t1)),d))))<>f)))}
+} {600}
+do_test randexpr-2.1079 {
+  db eval {SELECT case 17 when (t1.d)*coalesce((select (select case (cast(avg(c) AS integer)+max(case when (not d+ -t1.e not between 11 and  -f) then f when b<(11) then t1.b else 11 end))+count(distinct t1.c)*max(b) when  -min(e) &  -count(distinct t1.c) then cast(avg(e) AS integer) else count(*) end from t1) from t1 where case c when a then a else t1.d end-11<>19),t1.a)+t1.b then f else t1.f end FROM t1 WHERE NOT (not exists(select 1 from t1 where exists(select 1 from t1 where (abs(d)/abs((f*+coalesce((select  -~case when exists(select 1 from t1 where b<c) then t1.b else 17 end+case (select (min(coalesce((select b from t1 where 11<>t1.c or ((t1.c))<>e),(t1.e)))) from t1)*17 when e then a else t1.e end-t1.b-19 from t1 where t1.e in (select abs(+min(f)+cast(avg( -a) AS integer)) from t1 union select count(distinct c) from t1)),d))))<>f)))}
+} {600}
+do_test randexpr-2.1080 {
+  db eval {SELECT ((select  -case min(17 | (abs(a)/abs(case (select max(a) from t1)+13+t1.c when c then (abs(case when 17<>a and t1.c=d then ((17)) else e end)/abs(t1.b)) else 17 end)) | f*a) when abs(~(count(distinct t1.e))-abs((~max(c)))-count(*) | min(t1.f)+max(11)) then  -cast(avg((b)) AS integer) else min(b) end from t1))*a FROM t1 WHERE (13)-(t1.a*17-t1.b)-coalesce((select (select  -cast(avg(t1.c) AS integer)+case  - -count(*) | (count(distinct t1.a)) when  -min(t1.e) then (max(t1.d)) else count(distinct t1.b) end from t1)-e+(abs(17)/abs(e)) from t1 where not exists(select 1 from t1 where not exists(select 1 from t1 where (d)>=13 and (t1.b not in (c,a, -t1.d) or t1.e in (select c from t1 union select t1.c from t1)) or 11<=t1.d))),17) in (select e from t1 union select e from t1)}
+} {}
+do_test randexpr-2.1081 {
+  db eval {SELECT ((select  -case min(17 | (abs(a)/abs(case (select max(a) from t1)+13+t1.c when c then (abs(case when 17<>a and t1.c=d then ((17)) else e end)/abs(t1.b)) else 17 end)) | f*a) when abs(~(count(distinct t1.e))-abs((~max(c)))-count(*) | min(t1.f)+max(11)) then  -cast(avg((b)) AS integer) else min(b) end from t1))*a FROM t1 WHERE NOT ((13)-(t1.a*17-t1.b)-coalesce((select (select  -cast(avg(t1.c) AS integer)+case  - -count(*) | (count(distinct t1.a)) when  -min(t1.e) then (max(t1.d)) else count(distinct t1.b) end from t1)-e+(abs(17)/abs(e)) from t1 where not exists(select 1 from t1 where not exists(select 1 from t1 where (d)>=13 and (t1.b not in (c,a, -t1.d) or t1.e in (select c from t1 union select t1.c from t1)) or 11<=t1.d))),17) in (select e from t1 union select e from t1))}
+} {-20000}
+do_test randexpr-2.1082 {
+  db eval {SELECT ((select  -case min(17 & (abs(a)/abs(case (select max(a) from t1)+13+t1.c when c then (abs(case when 17<>a and t1.c=d then ((17)) else e end)/abs(t1.b)) else 17 end)) & f*a) when abs(~(count(distinct t1.e))-abs((~max(c)))-count(*) & min(t1.f)+max(11)) then  -cast(avg((b)) AS integer) else min(b) end from t1))*a FROM t1 WHERE NOT ((13)-(t1.a*17-t1.b)-coalesce((select (select  -cast(avg(t1.c) AS integer)+case  - -count(*) | (count(distinct t1.a)) when  -min(t1.e) then (max(t1.d)) else count(distinct t1.b) end from t1)-e+(abs(17)/abs(e)) from t1 where not exists(select 1 from t1 where not exists(select 1 from t1 where (d)>=13 and (t1.b not in (c,a, -t1.d) or t1.e in (select c from t1 union select t1.c from t1)) or 11<=t1.d))),17) in (select e from t1 union select e from t1))}
+} {-20000}
+do_test randexpr-2.1083 {
+  db eval {SELECT case when (select  -min(11) from t1)<>(abs(17)/abs(t1.d | e)) then case 11+case 11 when b | e-e then 19+e else b end*(abs(t1.a)/abs(b | a)) | coalesce((select case when a in (select cast(avg(d) AS integer) from t1 union select  - - -max(c) from t1) or e not in (c,d,a) then +13 when t1.a>a then 19 else f end from t1 where t1.c=13 or f<>t1.e),a) when f then f else c end else t1.e end FROM t1 WHERE ~17 in (11,t1.c,19)}
+} {}
+do_test randexpr-2.1084 {
+  db eval {SELECT case when (select  -min(11) from t1)<>(abs(17)/abs(t1.d | e)) then case 11+case 11 when b | e-e then 19+e else b end*(abs(t1.a)/abs(b | a)) | coalesce((select case when a in (select cast(avg(d) AS integer) from t1 union select  - - -max(c) from t1) or e not in (c,d,a) then +13 when t1.a>a then 19 else f end from t1 where t1.c=13 or f<>t1.e),a) when f then f else c end else t1.e end FROM t1 WHERE NOT (~17 in (11,t1.c,19))}
+} {300}
+do_test randexpr-2.1085 {
+  db eval {SELECT case when (select  -min(11) from t1)<>(abs(17)/abs(t1.d & e)) then case 11+case 11 when b & e-e then 19+e else b end*(abs(t1.a)/abs(b & a)) & coalesce((select case when a in (select cast(avg(d) AS integer) from t1 union select  - - -max(c) from t1) or e not in (c,d,a) then +13 when t1.a>a then 19 else f end from t1 where t1.c=13 or f<>t1.e),a) when f then f else c end else t1.e end FROM t1 WHERE NOT (~17 in (11,t1.c,19))}
+} {300}
+do_test randexpr-2.1086 {
+  db eval {SELECT (select case +cast(avg(+19) AS integer) when (abs(count(*))) then (cast(avg(e*t1.b) AS integer)) else cast(avg(t1.a) AS integer) end+count(*) | +max(f-t1.e*t1.e | (f)* -19+ -b*d) | count(*)*count(*)* -count(*) | ~count(distinct  -b)*cast(avg(t1.f) AS integer)+count(*) from t1)-t1.c+t1.b FROM t1 WHERE ((select  -count(*)+min(case ~coalesce((select max(d) from t1 where (not not exists(select 1 from t1 where t1.b not in ((select  -max(a)+(count(*)) from t1) | c+case when t1.e not in (13,e,c) then (t1.f) else t1.c end+17*c+19,c,e)))),t1.f) when (f) then t1.a else t1.f end | b | t1.a) from t1) in (c,t1.c+ -a,f))}
+} {}
+do_test randexpr-2.1087 {
+  db eval {SELECT (select case +cast(avg(+19) AS integer) when (abs(count(*))) then (cast(avg(e*t1.b) AS integer)) else cast(avg(t1.a) AS integer) end+count(*) | +max(f-t1.e*t1.e | (f)* -19+ -b*d) | count(*)*count(*)* -count(*) | ~count(distinct  -b)*cast(avg(t1.f) AS integer)+count(*) from t1)-t1.c+t1.b FROM t1 WHERE NOT (((select  -count(*)+min(case ~coalesce((select max(d) from t1 where (not not exists(select 1 from t1 where t1.b not in ((select  -max(a)+(count(*)) from t1) | c+case when t1.e not in (13,e,c) then (t1.f) else t1.c end+17*c+19,c,e)))),t1.f) when (f) then t1.a else t1.f end | b | t1.a) from t1) in (c,t1.c+ -a,f)))}
+} {-101}
+do_test randexpr-2.1088 {
+  db eval {SELECT (select case +cast(avg(+19) AS integer) when (abs(count(*))) then (cast(avg(e*t1.b) AS integer)) else cast(avg(t1.a) AS integer) end+count(*) & +max(f-t1.e*t1.e & (f)* -19+ -b*d) & count(*)*count(*)* -count(*) & ~count(distinct  -b)*cast(avg(t1.f) AS integer)+count(*) from t1)-t1.c+t1.b FROM t1 WHERE NOT (((select  -count(*)+min(case ~coalesce((select max(d) from t1 where (not not exists(select 1 from t1 where t1.b not in ((select  -max(a)+(count(*)) from t1) | c+case when t1.e not in (13,e,c) then (t1.f) else t1.c end+17*c+19,c,e)))),t1.f) when (f) then t1.a else t1.f end | b | t1.a) from t1) in (c,t1.c+ -a,f)))}
+} {-36}
+do_test randexpr-2.1089 {
+  db eval {SELECT (coalesce((select (select  -~+ -abs(case cast(avg(a*t1.d) AS integer) when case ~case count(distinct ((abs(t1.a)/abs(d)))) when case cast(avg(17) AS integer)-count(*) when  -count(*) then count(distinct d) else (max(t1.d)) end*count(*) then count(distinct t1.c) else min(19) end-count(*) when cast(avg(t1.a) AS integer) then ((count(*))) else min(a) end then (count(*)) else max(e) end)*(count(*))*max(a) from t1) from t1 where (19>=(17))),d)) FROM t1 WHERE exists(select 1 from t1 where 19 in (t1.a*coalesce((select a from t1 where (11<case a when (t1.e+c-t1.a) then t1.b else t1.c end) or d between +t1.e-+coalesce((select max(coalesce((select (select cast(avg((19)) AS integer) from t1) from t1 where t1.e>t1.b),t1.e)) from t1 where e not between 13 and t1.c),(a))-t1.d and 13),13*b)-17, -b,17))}
+} {}
+do_test randexpr-2.1090 {
+  db eval {SELECT (coalesce((select (select  -~+ -abs(case cast(avg(a*t1.d) AS integer) when case ~case count(distinct ((abs(t1.a)/abs(d)))) when case cast(avg(17) AS integer)-count(*) when  -count(*) then count(distinct d) else (max(t1.d)) end*count(*) then count(distinct t1.c) else min(19) end-count(*) when cast(avg(t1.a) AS integer) then ((count(*))) else min(a) end then (count(*)) else max(e) end)*(count(*))*max(a) from t1) from t1 where (19>=(17))),d)) FROM t1 WHERE NOT (exists(select 1 from t1 where 19 in (t1.a*coalesce((select a from t1 where (11<case a when (t1.e+c-t1.a) then t1.b else t1.c end) or d between +t1.e-+coalesce((select max(coalesce((select (select cast(avg((19)) AS integer) from t1) from t1 where t1.e>t1.b),t1.e)) from t1 where e not between 13 and t1.c),(a))-t1.d and 13),13*b)-17, -b,17)))}
+} {-49900}
+do_test randexpr-2.1091 {
+  db eval {SELECT case when (coalesce((select max((select +max(c) from t1)) from t1 where t1.c<>t1.a),d) not in (t1.d,+case when 17>19 then e when t1.b<>+(select count(*) from t1) then t1.e else t1.d end,t1.c)) then (select count(*)-count(distinct t1.d)+ -max( -t1.c-a)*case cast(avg((f)) AS integer) when count(distinct d) then max((13)) else max(t1.d) end from t1)*t1.b else t1.c end |  -13*t1.d*t1.c FROM t1 WHERE c in (select case count(distinct ~(abs( -a)/abs(d))) when ~count(*) then ~min(coalesce((select max((abs(e)/abs(d))) from t1 where not exists(select 1 from t1 where t1.e>( -+t1.a-t1.e*17))),19))+count(*) else case ~ -cast(avg((11)) AS integer) | +cast(avg(d) AS integer) | (cast(avg(c) AS integer))+min(t1.e) when min(t1.c) then max(11) else  -count(*) end end+max(t1.c) from t1 union select  -count(*) from t1)}
+} {}
+do_test randexpr-2.1092 {
+  db eval {SELECT case when (coalesce((select max((select +max(c) from t1)) from t1 where t1.c<>t1.a),d) not in (t1.d,+case when 17>19 then e when t1.b<>+(select count(*) from t1) then t1.e else t1.d end,t1.c)) then (select count(*)-count(distinct t1.d)+ -max( -t1.c-a)*case cast(avg((f)) AS integer) when count(distinct d) then max((13)) else max(t1.d) end from t1)*t1.b else t1.c end |  -13*t1.d*t1.c FROM t1 WHERE NOT (c in (select case count(distinct ~(abs( -a)/abs(d))) when ~count(*) then ~min(coalesce((select max((abs(e)/abs(d))) from t1 where not exists(select 1 from t1 where t1.e>( -+t1.a-t1.e*17))),19))+count(*) else case ~ -cast(avg((11)) AS integer) | +cast(avg(d) AS integer) | (cast(avg(c) AS integer))+min(t1.e) when min(t1.c) then max(11) else  -count(*) end end+max(t1.c) from t1 union select  -count(*) from t1))}
+} {-1559700}
+do_test randexpr-2.1093 {
+  db eval {SELECT case when (coalesce((select max((select +max(c) from t1)) from t1 where t1.c<>t1.a),d) not in (t1.d,+case when 17>19 then e when t1.b<>+(select count(*) from t1) then t1.e else t1.d end,t1.c)) then (select count(*)-count(distinct t1.d)+ -max( -t1.c-a)*case cast(avg((f)) AS integer) when count(distinct d) then max((13)) else max(t1.d) end from t1)*t1.b else t1.c end &  -13*t1.d*t1.c FROM t1 WHERE NOT (c in (select case count(distinct ~(abs( -a)/abs(d))) when ~count(*) then ~min(coalesce((select max((abs(e)/abs(d))) from t1 where not exists(select 1 from t1 where t1.e>( -+t1.a-t1.e*17))),19))+count(*) else case ~ -cast(avg((11)) AS integer) | +cast(avg(d) AS integer) | (cast(avg(c) AS integer))+min(t1.e) when min(t1.c) then max(11) else  -count(*) end end+max(t1.c) from t1 union select  -count(*) from t1))}
+} {0}
+do_test randexpr-2.1094 {
+  db eval {SELECT coalesce((select max(t1.c+t1.b-t1.b+(abs(d++t1.f)/abs(t1.a)) | 13*17) from t1 where coalesce((select 11 from t1 where case case case c when d then t1.d else 13 end when b then  -11 else t1.b end when 13 then (t1.a) else d end not in (c,13,a)),t1.c) | f not in (t1.a,t1.c,13) and not exists(select 1 from t1 where t1.c in (select e from t1 union select  -11 from t1))),t1.f) FROM t1 WHERE (((13+coalesce((select max(13) from t1 where not exists(select 1 from t1 where ((abs(c-case when not exists(select 1 from t1 where ((f) between c and 13)) then (select case min(f) when max(17) then min(13) else min(b) end from t1) when 17 in (t1.e,13,f) then  -13 else 11 end)/abs(t1.f)) in (select min(c) from t1 union select  -count(*) | + -min(19) from t1))) and f<13),t1.e+t1.c) in (select count(distinct c)-count(*) from t1 union select  -case min((e))+cast(avg(t1.a) AS integer) when ((min(t1.c))) then count(distinct e) else  -cast(avg(t1.d) AS integer) end from t1))))}
+} {}
+do_test randexpr-2.1095 {
+  db eval {SELECT coalesce((select max(t1.c+t1.b-t1.b+(abs(d++t1.f)/abs(t1.a)) | 13*17) from t1 where coalesce((select 11 from t1 where case case case c when d then t1.d else 13 end when b then  -11 else t1.b end when 13 then (t1.a) else d end not in (c,13,a)),t1.c) | f not in (t1.a,t1.c,13) and not exists(select 1 from t1 where t1.c in (select e from t1 union select  -11 from t1))),t1.f) FROM t1 WHERE NOT ((((13+coalesce((select max(13) from t1 where not exists(select 1 from t1 where ((abs(c-case when not exists(select 1 from t1 where ((f) between c and 13)) then (select case min(f) when max(17) then min(13) else min(b) end from t1) when 17 in (t1.e,13,f) then  -13 else 11 end)/abs(t1.f)) in (select min(c) from t1 union select  -count(*) | + -min(19) from t1))) and f<13),t1.e+t1.c) in (select count(distinct c)-count(*) from t1 union select  -case min((e))+cast(avg(t1.a) AS integer) when ((min(t1.c))) then count(distinct e) else  -cast(avg(t1.d) AS integer) end from t1)))))}
+} {511}
+do_test randexpr-2.1096 {
+  db eval {SELECT coalesce((select max(t1.c+t1.b-t1.b+(abs(d++t1.f)/abs(t1.a)) & 13*17) from t1 where coalesce((select 11 from t1 where case case case c when d then t1.d else 13 end when b then  -11 else t1.b end when 13 then (t1.a) else d end not in (c,13,a)),t1.c) & f not in (t1.a,t1.c,13) and not exists(select 1 from t1 where t1.c in (select e from t1 union select  -11 from t1))),t1.f) FROM t1 WHERE NOT ((((13+coalesce((select max(13) from t1 where not exists(select 1 from t1 where ((abs(c-case when not exists(select 1 from t1 where ((f) between c and 13)) then (select case min(f) when max(17) then min(13) else min(b) end from t1) when 17 in (t1.e,13,f) then  -13 else 11 end)/abs(t1.f)) in (select min(c) from t1 union select  -count(*) | + -min(19) from t1))) and f<13),t1.e+t1.c) in (select count(distinct c)-count(*) from t1 union select  -case min((e))+cast(avg(t1.a) AS integer) when ((min(t1.c))) then count(distinct e) else  -cast(avg(t1.d) AS integer) end from t1)))))}
+} {20}
+do_test randexpr-2.1097 {
+  db eval {SELECT case when t1.a in (select t1.e*case when t1.b between t1.d and 11 or c-case when (t1.e=13) then ~e when e<>a then t1.d else t1.f end in (11,t1.e,t1.c) and 11 not between t1.a and 13 and 19<11 then 11 else t1.e end*t1.d from t1 union select t1.c from t1) then a when e between e and b then ((19)) else 11 end FROM t1 WHERE coalesce((select (select count(distinct t1.f) from t1) from t1 where case coalesce((select max(t1.d) from t1 where 17<>19),t1.d) when a then coalesce((select ~t1.f- - -c-c*17-f-c-t1.a from t1 where (t1.f) in (select max(11) from t1 union select ~cast(avg(17) AS integer) | ~count(*)+max(f)- -cast(avg(11) AS integer) from t1)),13) else e end in (a,t1.c,11)),c)>=t1.e}
+} {}
+do_test randexpr-2.1098 {
+  db eval {SELECT case when t1.a in (select t1.e*case when t1.b between t1.d and 11 or c-case when (t1.e=13) then ~e when e<>a then t1.d else t1.f end in (11,t1.e,t1.c) and 11 not between t1.a and 13 and 19<11 then 11 else t1.e end*t1.d from t1 union select t1.c from t1) then a when e between e and b then ((19)) else 11 end FROM t1 WHERE NOT (coalesce((select (select count(distinct t1.f) from t1) from t1 where case coalesce((select max(t1.d) from t1 where 17<>19),t1.d) when a then coalesce((select ~t1.f- - -c-c*17-f-c-t1.a from t1 where (t1.f) in (select max(11) from t1 union select ~cast(avg(17) AS integer) | ~count(*)+max(f)- -cast(avg(11) AS integer) from t1)),13) else e end in (a,t1.c,11)),c)>=t1.e)}
+} {11}
+do_test randexpr-2.1099 {
+  db eval {SELECT coalesce((select max(case t1.b+(select ~((cast(avg(17) AS integer)))*min(a)+ -count(distinct b)*cast(avg(t1.b) AS integer)-count(*)+max(19) from t1)-(e) when d then 13 else 13*c end+t1.c) from t1 where t1.b in (select +cast(avg(e) AS integer)*case count(*) when cast(avg(13) AS integer) then count(distinct t1.b) else count(*) end-(count(distinct 19))*min(t1.d) from t1 union select max(a) from t1)),(f))*e+t1.f*19 FROM t1 WHERE 17 not between  -t1.e and d}
+} {}
+do_test randexpr-2.1100 {
+  db eval {SELECT coalesce((select max(case t1.b+(select ~((cast(avg(17) AS integer)))*min(a)+ -count(distinct b)*cast(avg(t1.b) AS integer)-count(*)+max(19) from t1)-(e) when d then 13 else 13*c end+t1.c) from t1 where t1.b in (select +cast(avg(e) AS integer)*case count(*) when cast(avg(13) AS integer) then count(distinct t1.b) else count(*) end-(count(distinct 19))*min(t1.d) from t1 union select max(a) from t1)),(f))*e+t1.f*19 FROM t1 WHERE NOT (17 not between  -t1.e and d)}
+} {311400}
+do_test randexpr-2.1101 {
+  db eval {SELECT coalesce((select max(~19) from t1 where 11 in (select t1.b-11*coalesce((select max(b) from t1 where coalesce((select max(e) from t1 where c*case 19*19+coalesce((select 19 from t1 where (11 not in (13+t1.d,b,(11)))),13)*d when t1.e then t1.b else t1.b end+t1.e between d and t1.b),t1.b) | (f)<>13), - -17)+c from t1 union select  -19 from t1)),17) FROM t1 WHERE ~t1.d not between 11*13-+t1.d-11-f and t1.d}
+} {}
+do_test randexpr-2.1102 {
+  db eval {SELECT coalesce((select max(~19) from t1 where 11 in (select t1.b-11*coalesce((select max(b) from t1 where coalesce((select max(e) from t1 where c*case 19*19+coalesce((select 19 from t1 where (11 not in (13+t1.d,b,(11)))),13)*d when t1.e then t1.b else t1.b end+t1.e between d and t1.b),t1.b) | (f)<>13), - -17)+c from t1 union select  -19 from t1)),17) FROM t1 WHERE NOT (~t1.d not between 11*13-+t1.d-11-f and t1.d)}
+} {17}
+do_test randexpr-2.1103 {
+  db eval {SELECT coalesce((select max(~19) from t1 where 11 in (select t1.b-11*coalesce((select max(b) from t1 where coalesce((select max(e) from t1 where c*case 19*19+coalesce((select 19 from t1 where (11 not in (13+t1.d,b,(11)))),13)*d when t1.e then t1.b else t1.b end+t1.e between d and t1.b),t1.b) & (f)<>13), - -17)+c from t1 union select  -19 from t1)),17) FROM t1 WHERE NOT (~t1.d not between 11*13-+t1.d-11-f and t1.d)}
+} {17}
+do_test randexpr-2.1104 {
+  db eval {SELECT case t1.b when coalesce((select max(17+coalesce((select max(coalesce((select (select count(distinct case f when 19 then coalesce((select coalesce((select max(11-(abs(d)/abs(11))) from t1 where not  -a in (19,t1.b,17)),17) from t1 where (f in (b,f,t1.a))),b) else b end) from t1) from t1 where 17 between e and t1.f),t1.a)) from t1 where 13>=e),b)) from t1 where t1.f>t1.f),t1.b) then 17 else t1.f end FROM t1 WHERE not exists(select 1 from t1 where 13 between a+17 and (t1.c))}
+} {17}
+do_test randexpr-2.1105 {
+  db eval {SELECT case t1.b when coalesce((select max(17+coalesce((select max(coalesce((select (select count(distinct case f when 19 then coalesce((select coalesce((select max(11-(abs(d)/abs(11))) from t1 where not  -a in (19,t1.b,17)),17) from t1 where (f in (b,f,t1.a))),b) else b end) from t1) from t1 where 17 between e and t1.f),t1.a)) from t1 where 13>=e),b)) from t1 where t1.f>t1.f),t1.b) then 17 else t1.f end FROM t1 WHERE NOT (not exists(select 1 from t1 where 13 between a+17 and (t1.c)))}
+} {}
+do_test randexpr-2.1106 {
+  db eval {SELECT case when coalesce((select max(d) from t1 where t1.a in (select a-a from t1 union select a from t1)),t1.b)*(select max(t1.b) from t1)>=case when t1.b<case 17 when 19 then t1.a else t1.a end then b when 17<19 then t1.e else t1.b end and (t1.e=t1.c or (not exists(select 1 from t1 where not exists(select 1 from t1 where a=(13)))) or t1.b between 17 and t1.d and b in (t1.f,f,13) or t1.d<e) then t1.c when t1.c between 19 and 11 then d else a end FROM t1 WHERE t1.c>=t1.a}
+} {300}
+do_test randexpr-2.1107 {
+  db eval {SELECT case when coalesce((select max(d) from t1 where t1.a in (select a-a from t1 union select a from t1)),t1.b)*(select max(t1.b) from t1)>=case when t1.b<case 17 when 19 then t1.a else t1.a end then b when 17<19 then t1.e else t1.b end and (t1.e=t1.c or (not exists(select 1 from t1 where not exists(select 1 from t1 where a=(13)))) or t1.b between 17 and t1.d and b in (t1.f,f,13) or t1.d<e) then t1.c when t1.c between 19 and 11 then d else a end FROM t1 WHERE NOT (t1.c>=t1.a)}
+} {}
+do_test randexpr-2.1108 {
+  db eval {SELECT case when case when f*~case when t1.c*t1.f in (c,t1.b,(17)) then 17 when 11>t1.c then 13 else t1.e end+t1.f in (select +max(e)+case (count(distinct a)*count(*))+max(19) when  -max(11) then count(distinct a) else ((count(distinct t1.d))) end from t1 union select count(distinct c) from t1) then 17 else d end+(t1.c)<17 then b when not exists(select 1 from t1 where 11>t1.b) then t1.d else t1.a end FROM t1 WHERE t1.b< -f}
+} {}
+do_test randexpr-2.1109 {
+  db eval {SELECT case when case when f*~case when t1.c*t1.f in (c,t1.b,(17)) then 17 when 11>t1.c then 13 else t1.e end+t1.f in (select +max(e)+case (count(distinct a)*count(*))+max(19) when  -max(11) then count(distinct a) else ((count(distinct t1.d))) end from t1 union select count(distinct c) from t1) then 17 else d end+(t1.c)<17 then b when not exists(select 1 from t1 where 11>t1.b) then t1.d else t1.a end FROM t1 WHERE NOT (t1.b< -f)}
+} {400}
+do_test randexpr-2.1110 {
+  db eval {SELECT (select cast(avg(f) AS integer) | ~++cast(avg((abs(17)/abs( -f+(c-coalesce((select case when c=d and t1.e=t1.b then e when e in (t1.b,19,t1.c) then 17 else d end from t1 where e between t1.a and t1.c),a))+a))) AS integer)-abs( -min(t1.c))-abs(max((t1.b)) |  -~(count(*))+max(17))+cast(avg(t1.a) AS integer) | min(a)*(count(*))*min(17) from t1) FROM t1 WHERE b-(t1.e*t1.e)-t1.d=t1.c}
+} {}
+do_test randexpr-2.1111 {
+  db eval {SELECT (select cast(avg(f) AS integer) | ~++cast(avg((abs(17)/abs( -f+(c-coalesce((select case when c=d and t1.e=t1.b then e when e in (t1.b,19,t1.c) then 17 else d end from t1 where e between t1.a and t1.c),a))+a))) AS integer)-abs( -min(t1.c))-abs(max((t1.b)) |  -~(count(*))+max(17))+cast(avg(t1.a) AS integer) | min(a)*(count(*))*min(17) from t1) FROM t1 WHERE NOT (b-(t1.e*t1.e)-t1.d=t1.c)}
+} {-260}
+do_test randexpr-2.1112 {
+  db eval {SELECT (select cast(avg(f) AS integer) & ~++cast(avg((abs(17)/abs( -f+(c-coalesce((select case when c=d and t1.e=t1.b then e when e in (t1.b,19,t1.c) then 17 else d end from t1 where e between t1.a and t1.c),a))+a))) AS integer)-abs( -min(t1.c))-abs(max((t1.b)) &  -~(count(*))+max(17))+cast(avg(t1.a) AS integer) & min(a)*(count(*))*min(17) from t1) FROM t1 WHERE NOT (b-(t1.e*t1.e)-t1.d=t1.c)}
+} {512}
+do_test randexpr-2.1113 {
+  db eval {SELECT ~+coalesce((select case when t1.f>d then b when (abs(t1.a)/abs((abs(f)/abs(t1.c))))*case ~b when e then (select cast(avg( -+t1.f) AS integer) from t1) else c end+coalesce((select max(17*case t1.a+b when t1.b then t1.d else t1.f end) from t1 where d=e),t1.f)+13>=17 then 19 else f end from t1 where t1.a in (select d from t1 union select e from t1)),b) FROM t1 WHERE 17<>f-~t1.a-case when  -b in (t1.b,(select min( -coalesce((select max(coalesce((select a- -t1.b from t1 where 11 in (t1.b,13, -t1.e) and f not between  -13 and t1.b),c)) from t1 where b not in (a,11,17)),t1.e)) from t1),e) or not exists(select 1 from t1 where t1.c in (select t1.b from t1 union select t1.b from t1)) then coalesce((select  -t1.e from t1 where e<>t1.e),f) when not t1.e<>t1.c then 19 else e end}
+} {-201}
+do_test randexpr-2.1114 {
+  db eval {SELECT ~+coalesce((select case when t1.f>d then b when (abs(t1.a)/abs((abs(f)/abs(t1.c))))*case ~b when e then (select cast(avg( -+t1.f) AS integer) from t1) else c end+coalesce((select max(17*case t1.a+b when t1.b then t1.d else t1.f end) from t1 where d=e),t1.f)+13>=17 then 19 else f end from t1 where t1.a in (select d from t1 union select e from t1)),b) FROM t1 WHERE NOT (17<>f-~t1.a-case when  -b in (t1.b,(select min( -coalesce((select max(coalesce((select a- -t1.b from t1 where 11 in (t1.b,13, -t1.e) and f not between  -13 and t1.b),c)) from t1 where b not in (a,11,17)),t1.e)) from t1),e) or not exists(select 1 from t1 where t1.c in (select t1.b from t1 union select t1.b from t1)) then coalesce((select  -t1.e from t1 where e<>t1.e),f) when not t1.e<>t1.c then 19 else e end)}
+} {}
+do_test randexpr-2.1115 {
+  db eval {SELECT d- -e*(abs(t1.c)/abs(d)) | t1.a+ -coalesce((select max(t1.e) from t1 where case when case when (a in (13,b,t1.b)) and d in (t1.c,17,a) then 17+t1.e when 19>=t1.b then a else 11 end=t1.f and d between c and (d) then (abs(17)/abs(d)) else t1.d end*f>e and not f<=13 and  -t1.f>=t1.e and t1.b<t1.b),t1.e)-case when t1.c<>e then t1.b else c end FROM t1 WHERE b-coalesce((select (coalesce((select max((coalesce((select d from t1 where not  -case when case 13 when +~(select case count(*) when  -max(t1.b) then max(a) else min(c) end from t1) then c else  -a end in (17,t1.b,(b)) then f else b end-f+17<=t1.a),t1.f)-d)) from t1 where t1.e=b),t1.b)) from t1 where (t1.a=t1.c)), -t1.a) not between 19 and 19}
+} {-584}
+do_test randexpr-2.1116 {
+  db eval {SELECT d- -e*(abs(t1.c)/abs(d)) | t1.a+ -coalesce((select max(t1.e) from t1 where case when case when (a in (13,b,t1.b)) and d in (t1.c,17,a) then 17+t1.e when 19>=t1.b then a else 11 end=t1.f and d between c and (d) then (abs(17)/abs(d)) else t1.d end*f>e and not f<=13 and  -t1.f>=t1.e and t1.b<t1.b),t1.e)-case when t1.c<>e then t1.b else c end FROM t1 WHERE NOT (b-coalesce((select (coalesce((select max((coalesce((select d from t1 where not  -case when case 13 when +~(select case count(*) when  -max(t1.b) then max(a) else min(c) end from t1) then c else  -a end in (17,t1.b,(b)) then f else b end-f+17<=t1.a),t1.f)-d)) from t1 where t1.e=b),t1.b)) from t1 where (t1.a=t1.c)), -t1.a) not between 19 and 19)}
+} {}
+do_test randexpr-2.1117 {
+  db eval {SELECT d- -e*(abs(t1.c)/abs(d)) & t1.a+ -coalesce((select max(t1.e) from t1 where case when case when (a in (13,b,t1.b)) and d in (t1.c,17,a) then 17+t1.e when 19>=t1.b then a else 11 end=t1.f and d between c and (d) then (abs(17)/abs(d)) else t1.d end*f>e and not f<=13 and  -t1.f>=t1.e and t1.b<t1.b),t1.e)-case when t1.c<>e then t1.b else c end FROM t1 WHERE b-coalesce((select (coalesce((select max((coalesce((select d from t1 where not  -case when case 13 when +~(select case count(*) when  -max(t1.b) then max(a) else min(c) end from t1) then c else  -a end in (17,t1.b,(b)) then f else b end-f+17<=t1.a),t1.f)-d)) from t1 where t1.e=b),t1.b)) from t1 where (t1.a=t1.c)), -t1.a) not between 19 and 19}
+} {384}
+do_test randexpr-2.1118 {
+  db eval {SELECT 19-case 13-f when b then t1.a*11-t1.d-+17*t1.b-coalesce((select 17 from t1 where 13<=f),+coalesce((select (abs(17+~coalesce((select a from t1 where 11<>t1.b and 11 not between t1.e and 19),17)+t1.e+t1.d | b)/abs(c))+f from t1 where 19 not between 19 and c),d)) else 19 end*t1.e+b FROM t1 WHERE 11+11 not in (t1.c,t1.e,19) and f+19*19*case when ~t1.a+19*b between t1.a-case case when f=(t1.d) then ((t1.d)) else  -d end*e when c then e else t1.a end*t1.e and c then t1.e else b end in (select d from t1 union select t1.a from t1) or t1.d>=t1.f or not exists(select 1 from t1 where a<=13)}
+} {-9281}
+do_test randexpr-2.1119 {
+  db eval {SELECT 19-case 13-f when b then t1.a*11-t1.d-+17*t1.b-coalesce((select 17 from t1 where 13<=f),+coalesce((select (abs(17+~coalesce((select a from t1 where 11<>t1.b and 11 not between t1.e and 19),17)+t1.e+t1.d | b)/abs(c))+f from t1 where 19 not between 19 and c),d)) else 19 end*t1.e+b FROM t1 WHERE NOT (11+11 not in (t1.c,t1.e,19) and f+19*19*case when ~t1.a+19*b between t1.a-case case when f=(t1.d) then ((t1.d)) else  -d end*e when c then e else t1.a end*t1.e and c then t1.e else b end in (select d from t1 union select t1.a from t1) or t1.d>=t1.f or not exists(select 1 from t1 where a<=13))}
+} {}
+do_test randexpr-2.1120 {
+  db eval {SELECT 19-case 13-f when b then t1.a*11-t1.d-+17*t1.b-coalesce((select 17 from t1 where 13<=f),+coalesce((select (abs(17+~coalesce((select a from t1 where 11<>t1.b and 11 not between t1.e and 19),17)+t1.e+t1.d & b)/abs(c))+f from t1 where 19 not between 19 and c),d)) else 19 end*t1.e+b FROM t1 WHERE 11+11 not in (t1.c,t1.e,19) and f+19*19*case when ~t1.a+19*b between t1.a-case case when f=(t1.d) then ((t1.d)) else  -d end*e when c then e else t1.a end*t1.e and c then t1.e else b end in (select d from t1 union select t1.a from t1) or t1.d>=t1.f or not exists(select 1 from t1 where a<=13)}
+} {-9281}
+do_test randexpr-2.1121 {
+  db eval {SELECT case 19 when e then t1.b-t1.d else 11+coalesce((select 19 from t1 where not (t1.a)+(abs(case coalesce((select coalesce((select t1.e from t1 where 11=d),a) from t1 where t1.d<=13),a) when 17 then 13 else t1.a end)/abs(t1.b))-t1.d*e+t1.d not between b and b or e in (select  -min(c) from t1 union select min(t1.b) from t1)),(abs(e)/abs(t1.b)))+t1.c end FROM t1 WHERE exists(select 1 from t1 where c in (select t1.a from t1 union select f from t1))}
+} {}
+do_test randexpr-2.1122 {
+  db eval {SELECT case 19 when e then t1.b-t1.d else 11+coalesce((select 19 from t1 where not (t1.a)+(abs(case coalesce((select coalesce((select t1.e from t1 where 11=d),a) from t1 where t1.d<=13),a) when 17 then 13 else t1.a end)/abs(t1.b))-t1.d*e+t1.d not between b and b or e in (select  -min(c) from t1 union select min(t1.b) from t1)),(abs(e)/abs(t1.b)))+t1.c end FROM t1 WHERE NOT (exists(select 1 from t1 where c in (select t1.a from t1 union select f from t1)))}
+} {313}
+do_test randexpr-2.1123 {
+  db eval {SELECT 17 | t1.d-(select +max(case when not exists(select 1 from t1 where (a<=t1.f)) then  -19 else  -t1.d end)- -min(t1.f+t1.f-(select (count(*)) from t1)) from t1)- -19 | b-d+coalesce((select max(d) from t1 where e-t1.a in (19,b,11) or e in (19,t1.b,c)),11) FROM t1 WHERE (11<=11 and case coalesce((select max((f)) from t1 where t1.b | case 11 when t1.e*t1.e then e else case when ~b-case when 19 not in (t1.d,13,e) then 13 when c between t1.e and b then 19 else t1.c end-(c) in (select  -t1.f from t1 union select d from t1) then c else t1.b end end*t1.a in (19,e,c)),t1.a) when t1.d then t1.a else  -a end not in (t1.c,b,t1.f))}
+} {-41}
+do_test randexpr-2.1124 {
+  db eval {SELECT 17 | t1.d-(select +max(case when not exists(select 1 from t1 where (a<=t1.f)) then  -19 else  -t1.d end)- -min(t1.f+t1.f-(select (count(*)) from t1)) from t1)- -19 | b-d+coalesce((select max(d) from t1 where e-t1.a in (19,b,11) or e in (19,t1.b,c)),11) FROM t1 WHERE NOT ((11<=11 and case coalesce((select max((f)) from t1 where t1.b | case 11 when t1.e*t1.e then e else case when ~b-case when 19 not in (t1.d,13,e) then 13 when c between t1.e and b then 19 else t1.c end-(c) in (select  -t1.f from t1 union select d from t1) then c else t1.b end end*t1.a in (19,e,c)),t1.a) when t1.d then t1.a else  -a end not in (t1.c,b,t1.f)))}
+} {}
+do_test randexpr-2.1125 {
+  db eval {SELECT 17 & t1.d-(select +max(case when not exists(select 1 from t1 where (a<=t1.f)) then  -19 else  -t1.d end)- -min(t1.f+t1.f-(select (count(*)) from t1)) from t1)- -19 & b-d+coalesce((select max(d) from t1 where e-t1.a in (19,b,11) or e in (19,t1.b,c)),11) FROM t1 WHERE (11<=11 and case coalesce((select max((f)) from t1 where t1.b | case 11 when t1.e*t1.e then e else case when ~b-case when 19 not in (t1.d,13,e) then 13 when c between t1.e and b then 19 else t1.c end-(c) in (select  -t1.f from t1 union select d from t1) then c else t1.b end end*t1.a in (19,e,c)),t1.a) when t1.d then t1.a else  -a end not in (t1.c,b,t1.f))}
+} {0}
+do_test randexpr-2.1126 {
+  db eval {SELECT case t1.e-d+b when coalesce((select (select max(t1.a | a |  -(select (count(*))+( - - -count(*)) from t1)*19+ -f+t1.e) from t1) from t1 where not exists(select 1 from t1 where (d not between a and 11) or not d>=11 and exists(select 1 from t1 where not t1.a<>13)) or 19 not in (17,t1.c,t1.c)),19)*t1.c+d then b else c end-b FROM t1 WHERE c<17}
+} {}
+do_test randexpr-2.1127 {
+  db eval {SELECT case t1.e-d+b when coalesce((select (select max(t1.a | a |  -(select (count(*))+( - - -count(*)) from t1)*19+ -f+t1.e) from t1) from t1 where not exists(select 1 from t1 where (d not between a and 11) or not d>=11 and exists(select 1 from t1 where not t1.a<>13)) or 19 not in (17,t1.c,t1.c)),19)*t1.c+d then b else c end-b FROM t1 WHERE NOT (c<17)}
+} {100}
+do_test randexpr-2.1128 {
+  db eval {SELECT case t1.e-d+b when coalesce((select (select max(t1.a & a &  -(select (count(*))+( - - -count(*)) from t1)*19+ -f+t1.e) from t1) from t1 where not exists(select 1 from t1 where (d not between a and 11) or not d>=11 and exists(select 1 from t1 where not t1.a<>13)) or 19 not in (17,t1.c,t1.c)),19)*t1.c+d then b else c end-b FROM t1 WHERE NOT (c<17)}
+} {100}
+do_test randexpr-2.1129 {
+  db eval {SELECT f*f*(abs(case when (17-coalesce((select max(11) from t1 where coalesce((select max(t1.c-11*t1.a) from t1 where +e=(abs(d)/abs(11))+ -13),t1.b)<b and exists(select 1 from t1 where t1.f between d and  -t1.c)),19)-19 in (select max(t1.e) | min(t1.e) from t1 union select count(*) from t1) and 17>t1.e) then e else 17 end)/abs(c)) FROM t1 WHERE (t1.a in ((t1.f-t1.c)+b,11,t1.a+f))}
+} {}
+do_test randexpr-2.1130 {
+  db eval {SELECT f*f*(abs(case when (17-coalesce((select max(11) from t1 where coalesce((select max(t1.c-11*t1.a) from t1 where +e=(abs(d)/abs(11))+ -13),t1.b)<b and exists(select 1 from t1 where t1.f between d and  -t1.c)),19)-19 in (select max(t1.e) | min(t1.e) from t1 union select count(*) from t1) and 17>t1.e) then e else 17 end)/abs(c)) FROM t1 WHERE NOT ((t1.a in ((t1.f-t1.c)+b,11,t1.a+f)))}
+} {0}
+do_test randexpr-2.1131 {
+  db eval {SELECT f*f*(abs(case when (17-coalesce((select max(11) from t1 where coalesce((select max(t1.c-11*t1.a) from t1 where +e=(abs(d)/abs(11))+ -13),t1.b)<b and exists(select 1 from t1 where t1.f between d and  -t1.c)),19)-19 in (select max(t1.e) & min(t1.e) from t1 union select count(*) from t1) and 17>t1.e) then e else 17 end)/abs(c)) FROM t1 WHERE NOT ((t1.a in ((t1.f-t1.c)+b,11,t1.a+f)))}
+} {0}
+do_test randexpr-2.1132 {
+  db eval {SELECT ( -19-f+coalesce((select max( -~case when case 11 when ~coalesce((select max(13) from t1 where not (e)<>(t1.c)),19)+11 |  -19-f then  -13 else t1.c end-e<=t1.a then 11 when not exists(select 1 from t1 where (not t1.c<19) and not (13<>17)) then  -e else f end) from t1 where (b)<=t1.e),t1.d)+ -t1.c) | b FROM t1 WHERE (~(select (max(f)-count(distinct c)) from t1) | case when e>=t1.c then t1.b+(select abs(count(*)+max(c)*abs(count(distinct e)+max(t1.f))+cast(avg(c) AS integer)) | cast(avg(t1.d) AS integer)*min(11) from t1)-t1.c else c end in (select case  -t1.b when 17 then 17 else  -case when not t1.c not in (17,t1.d,17) then 19 else a end end from t1 union select a from t1)) or (11)<=t1.b}
+} {-771}
+do_test randexpr-2.1133 {
+  db eval {SELECT ( -19-f+coalesce((select max( -~case when case 11 when ~coalesce((select max(13) from t1 where not (e)<>(t1.c)),19)+11 |  -19-f then  -13 else t1.c end-e<=t1.a then 11 when not exists(select 1 from t1 where (not t1.c<19) and not (13<>17)) then  -e else f end) from t1 where (b)<=t1.e),t1.d)+ -t1.c) | b FROM t1 WHERE NOT ((~(select (max(f)-count(distinct c)) from t1) | case when e>=t1.c then t1.b+(select abs(count(*)+max(c)*abs(count(distinct e)+max(t1.f))+cast(avg(c) AS integer)) | cast(avg(t1.d) AS integer)*min(11) from t1)-t1.c else c end in (select case  -t1.b when 17 then 17 else  -case when not t1.c not in (17,t1.d,17) then 19 else a end end from t1 union select a from t1)) or (11)<=t1.b)}
+} {}
+do_test randexpr-2.1134 {
+  db eval {SELECT ( -19-f+coalesce((select max( -~case when case 11 when ~coalesce((select max(13) from t1 where not (e)<>(t1.c)),19)+11 &  -19-f then  -13 else t1.c end-e<=t1.a then 11 when not exists(select 1 from t1 where (not t1.c<19) and not (13<>17)) then  -e else f end) from t1 where (b)<=t1.e),t1.d)+ -t1.c) & b FROM t1 WHERE (~(select (max(f)-count(distinct c)) from t1) | case when e>=t1.c then t1.b+(select abs(count(*)+max(c)*abs(count(distinct e)+max(t1.f))+cast(avg(c) AS integer)) | cast(avg(t1.d) AS integer)*min(11) from t1)-t1.c else c end in (select case  -t1.b when 17 then 17 else  -case when not t1.c not in (17,t1.d,17) then 19 else a end end from t1 union select a from t1)) or (11)<=t1.b}
+} {64}
+do_test randexpr-2.1135 {
+  db eval {SELECT +case when (not exists(select 1 from t1 where (abs(t1.a+coalesce((select max(b+ -case when e=t1.f then (abs(d)/abs(t1.e)) when not exists(select 1 from t1 where 17<t1.c) then d else f end |  -(t1.e) | 13*e) from t1 where f in (select t1.e from t1 union select t1.f from t1)),d) | 11)/abs(t1.b))-b not between b and t1.d) and t1.d>t1.c) then e else e end FROM t1 WHERE not t1.d-d+case b when t1.a+t1.a then t1.f+ -t1.e else 11+b*coalesce((select max(t1.f) from t1 where 11>= -f+t1.d),t1.c)*19 end not between d and t1.c-(11)+17}
+} {}
+do_test randexpr-2.1136 {
+  db eval {SELECT +case when (not exists(select 1 from t1 where (abs(t1.a+coalesce((select max(b+ -case when e=t1.f then (abs(d)/abs(t1.e)) when not exists(select 1 from t1 where 17<t1.c) then d else f end |  -(t1.e) | 13*e) from t1 where f in (select t1.e from t1 union select t1.f from t1)),d) | 11)/abs(t1.b))-b not between b and t1.d) and t1.d>t1.c) then e else e end FROM t1 WHERE NOT (not t1.d-d+case b when t1.a+t1.a then t1.f+ -t1.e else 11+b*coalesce((select max(t1.f) from t1 where 11>= -f+t1.d),t1.c)*19 end not between d and t1.c-(11)+17)}
+} {500}
+do_test randexpr-2.1137 {
+  db eval {SELECT +case when (not exists(select 1 from t1 where (abs(t1.a+coalesce((select max(b+ -case when e=t1.f then (abs(d)/abs(t1.e)) when not exists(select 1 from t1 where 17<t1.c) then d else f end &  -(t1.e) & 13*e) from t1 where f in (select t1.e from t1 union select t1.f from t1)),d) & 11)/abs(t1.b))-b not between b and t1.d) and t1.d>t1.c) then e else e end FROM t1 WHERE NOT (not t1.d-d+case b when t1.a+t1.a then t1.f+ -t1.e else 11+b*coalesce((select max(t1.f) from t1 where 11>= -f+t1.d),t1.c)*19 end not between d and t1.c-(11)+17)}
+} {500}
+do_test randexpr-2.1138 {
+  db eval {SELECT t1.d+case when (t1.a)<=11 then ~t1.a else ~19 end-+~ -coalesce((select t1.d from t1 where ~t1.f in (select (cast(avg(t1.e+c) AS integer)) from t1 union select count(distinct (abs(coalesce((select max(19) from t1 where not ~11-t1.a=t1.c+case when t1.d between c and t1.d then 11 when t1.f>=17 then f else 19 end*t1.c),17)+f)/abs(f))) from t1)),11) FROM t1 WHERE e>c}
+} {370}
+do_test randexpr-2.1139 {
+  db eval {SELECT t1.d+case when (t1.a)<=11 then ~t1.a else ~19 end-+~ -coalesce((select t1.d from t1 where ~t1.f in (select (cast(avg(t1.e+c) AS integer)) from t1 union select count(distinct (abs(coalesce((select max(19) from t1 where not ~11-t1.a=t1.c+case when t1.d between c and t1.d then 11 when t1.f>=17 then f else 19 end*t1.c),17)+f)/abs(f))) from t1)),11) FROM t1 WHERE NOT (e>c)}
+} {}
+do_test randexpr-2.1140 {
+  db eval {SELECT case when coalesce((select max(case b | d*(abs(t1.e)/abs(a))-f | t1.b when t1.e then coalesce((select max(t1.e) from t1 where t1.e between (select ~count(*)*cast(avg(19) AS integer) from t1) and case c when a then 13 else a end),t1.f)+e*c else t1.d end) from t1 where t1.a in (select t1.d from t1 union select 17 from t1)),e)+17<19 then t1.a else 19 end | 11+e-17*19 FROM t1 WHERE d*t1.c-case when case when ((13 in (17+e,b,11)) or 19>(13)) then (abs(coalesce((select t1.a from t1 where t1.a not in (13,c,t1.f)),11))/abs(t1.e))-f when t1.b not between t1.b and f then t1.d else t1.a end in (a,e,t1.d) then t1.f else t1.f end+f+t1.e in (t1.d,e,b)}
+} {}
+do_test randexpr-2.1141 {
+  db eval {SELECT case when coalesce((select max(case b | d*(abs(t1.e)/abs(a))-f | t1.b when t1.e then coalesce((select max(t1.e) from t1 where t1.e between (select ~count(*)*cast(avg(19) AS integer) from t1) and case c when a then 13 else a end),t1.f)+e*c else t1.d end) from t1 where t1.a in (select t1.d from t1 union select 17 from t1)),e)+17<19 then t1.a else 19 end | 11+e-17*19 FROM t1 WHERE NOT (d*t1.c-case when case when ((13 in (17+e,b,11)) or 19>(13)) then (abs(coalesce((select t1.a from t1 where t1.a not in (13,c,t1.f)),11))/abs(t1.e))-f when t1.b not between t1.b and f then t1.d else t1.a end in (a,e,t1.d) then t1.f else t1.f end+f+t1.e in (t1.d,e,b))}
+} {191}
+do_test randexpr-2.1142 {
+  db eval {SELECT case when coalesce((select max(case b & d*(abs(t1.e)/abs(a))-f & t1.b when t1.e then coalesce((select max(t1.e) from t1 where t1.e between (select ~count(*)*cast(avg(19) AS integer) from t1) and case c when a then 13 else a end),t1.f)+e*c else t1.d end) from t1 where t1.a in (select t1.d from t1 union select 17 from t1)),e)+17<19 then t1.a else 19 end & 11+e-17*19 FROM t1 WHERE NOT (d*t1.c-case when case when ((13 in (17+e,b,11)) or 19>(13)) then (abs(coalesce((select t1.a from t1 where t1.a not in (13,c,t1.f)),11))/abs(t1.e))-f when t1.b not between t1.b and f then t1.d else t1.a end in (a,e,t1.d) then t1.f else t1.f end+f+t1.e in (t1.d,e,b))}
+} {16}
+do_test randexpr-2.1143 {
+  db eval {SELECT ((select (count(*) | +~(case ++(min(t1.f+17+(11-case when b between d and d and t1.a not in (13,c,t1.c) and e< -t1.b then 17+(11) else t1.e end+ -b))) when case min(e) when min( -13) | ~max(t1.f) then count(distinct t1.f) | ~count(distinct t1.d) else count(*) end then min(t1.c) else  -cast(avg(11) AS integer) end)+count(distinct (f))) from t1)+e) FROM t1 WHERE (a in (11*a-t1.a | t1.b+e*13,(f | a | (select min((select min(13)-min(17)*((count(distinct t1.d))) from t1)) from t1)+t1.a- -11)+(11),t1.c) and (a) between t1.d and t1.f or t1.d not between t1.c and f or d not in (t1.c,t1.f,c))}
+} {511}
+do_test randexpr-2.1144 {
+  db eval {SELECT ((select (count(*) | +~(case ++(min(t1.f+17+(11-case when b between d and d and t1.a not in (13,c,t1.c) and e< -t1.b then 17+(11) else t1.e end+ -b))) when case min(e) when min( -13) | ~max(t1.f) then count(distinct t1.f) | ~count(distinct t1.d) else count(*) end then min(t1.c) else  -cast(avg(11) AS integer) end)+count(distinct (f))) from t1)+e) FROM t1 WHERE NOT ((a in (11*a-t1.a | t1.b+e*13,(f | a | (select min((select min(13)-min(17)*((count(distinct t1.d))) from t1)) from t1)+t1.a- -11)+(11),t1.c) and (a) between t1.d and t1.f or t1.d not between t1.c and f or d not in (t1.c,t1.f,c)))}
+} {}
+do_test randexpr-2.1145 {
+  db eval {SELECT ((select (count(*) & +~(case ++(min(t1.f+17+(11-case when b between d and d and t1.a not in (13,c,t1.c) and e< -t1.b then 17+(11) else t1.e end+ -b))) when case min(e) when min( -13) & ~max(t1.f) then count(distinct t1.f) & ~count(distinct t1.d) else count(*) end then min(t1.c) else  -cast(avg(11) AS integer) end)+count(distinct (f))) from t1)+e) FROM t1 WHERE (a in (11*a-t1.a | t1.b+e*13,(f | a | (select min((select min(13)-min(17)*((count(distinct t1.d))) from t1)) from t1)+t1.a- -11)+(11),t1.c) and (a) between t1.d and t1.f or t1.d not between t1.c and f or d not in (t1.c,t1.f,c))}
+} {501}
+do_test randexpr-2.1146 {
+  db eval {SELECT coalesce((select max(13) from t1 where d in (select (max(19)*count(distinct case when t1.f between ~e and  -b-t1.f then b else d end)-count(distinct f)) from t1 union select cast(avg(case e when case t1.b when  -a | t1.e*19 then t1.a else  -t1.c end then  -d else t1.e end) AS integer) from t1)),case when t1.d in (select t1.e from t1 union select b from t1) then t1.f when t1.f between 13 and f then f else f end) FROM t1 WHERE c in (select (t1.a) from t1 union select e from t1)}
+} {}
+do_test randexpr-2.1147 {
+  db eval {SELECT coalesce((select max(13) from t1 where d in (select (max(19)*count(distinct case when t1.f between ~e and  -b-t1.f then b else d end)-count(distinct f)) from t1 union select cast(avg(case e when case t1.b when  -a | t1.e*19 then t1.a else  -t1.c end then  -d else t1.e end) AS integer) from t1)),case when t1.d in (select t1.e from t1 union select b from t1) then t1.f when t1.f between 13 and f then f else f end) FROM t1 WHERE NOT (c in (select (t1.a) from t1 union select e from t1))}
+} {600}
+do_test randexpr-2.1148 {
+  db eval {SELECT coalesce((select max(13) from t1 where d in (select (max(19)*count(distinct case when t1.f between ~e and  -b-t1.f then b else d end)-count(distinct f)) from t1 union select cast(avg(case e when case t1.b when  -a & t1.e*19 then t1.a else  -t1.c end then  -d else t1.e end) AS integer) from t1)),case when t1.d in (select t1.e from t1 union select b from t1) then t1.f when t1.f between 13 and f then f else f end) FROM t1 WHERE NOT (c in (select (t1.a) from t1 union select e from t1))}
+} {600}
+do_test randexpr-2.1149 {
+  db eval {SELECT (abs(t1.d+b)/abs(~t1.f+case when t1.f=t1.c or exists(select 1 from t1 where c>=+~t1.c*17) or exists(select 1 from t1 where (select  -cast(avg(case when 19<>t1.f then  -c when c<>b then t1.e else t1.d end) AS integer) from t1) in (d-t1.f,b,19)) then d+b when 11<b then t1.c else d end* -t1.a-19)) FROM t1 WHERE t1.a-(select cast(avg(a) AS integer) from t1) in (select t1.c from t1 union select 19 from t1) and not exists(select 1 from t1 where coalesce((select max(11) from t1 where case when not d>(19) then c else  -case when 11>b or t1.c<=c then f when t1.f>t1.a then t1.a else t1.e end*d-11 end+d*t1.b>t1.e),d)>t1.b and c<>d and not exists(select 1 from t1 where 17>=(t1.f)) and t1.e not in (f,t1.b,t1.b))}
+} {}
+do_test randexpr-2.1150 {
+  db eval {SELECT (abs(t1.d+b)/abs(~t1.f+case when t1.f=t1.c or exists(select 1 from t1 where c>=+~t1.c*17) or exists(select 1 from t1 where (select  -cast(avg(case when 19<>t1.f then  -c when c<>b then t1.e else t1.d end) AS integer) from t1) in (d-t1.f,b,19)) then d+b when 11<b then t1.c else d end* -t1.a-19)) FROM t1 WHERE NOT (t1.a-(select cast(avg(a) AS integer) from t1) in (select t1.c from t1 union select 19 from t1) and not exists(select 1 from t1 where coalesce((select max(11) from t1 where case when not d>(19) then c else  -case when 11>b or t1.c<=c then f when t1.f>t1.a then t1.a else t1.e end*d-11 end+d*t1.b>t1.e),d)>t1.b and c<>d and not exists(select 1 from t1 where 17>=(t1.f)) and t1.e not in (f,t1.b,t1.b)))}
+} {0}
+do_test randexpr-2.1151 {
+  db eval {SELECT t1.b-~case when +a in (select ~min(11) from t1 union select  -count(*)+count(distinct ~coalesce((select coalesce((select t1.b-19+c from t1 where a<>13 or 13 in (t1.b,d,t1.e)),11) from t1 where 19 in (19,e,17)),e)) from t1) then (select  -min(19)+cast(avg(t1.d) AS integer) from t1) else d end | 17 | t1.e FROM t1 WHERE c-b+e*11+(c+13+11)+(13)+(select cast(avg((abs(e-d+a)/abs(t1.f))) AS integer) from t1)-t1.d+~13<=t1.e-c-17}
+} {}
+do_test randexpr-2.1152 {
+  db eval {SELECT t1.b-~case when +a in (select ~min(11) from t1 union select  -count(*)+count(distinct ~coalesce((select coalesce((select t1.b-19+c from t1 where a<>13 or 13 in (t1.b,d,t1.e)),11) from t1 where 19 in (19,e,17)),e)) from t1) then (select  -min(19)+cast(avg(t1.d) AS integer) from t1) else d end | 17 | t1.e FROM t1 WHERE NOT (c-b+e*11+(c+13+11)+(13)+(select cast(avg((abs(e-d+a)/abs(t1.f))) AS integer) from t1)-t1.d+~13<=t1.e-c-17)}
+} {1021}
+do_test randexpr-2.1153 {
+  db eval {SELECT t1.b-~case when +a in (select ~min(11) from t1 union select  -count(*)+count(distinct ~coalesce((select coalesce((select t1.b-19+c from t1 where a<>13 or 13 in (t1.b,d,t1.e)),11) from t1 where 19 in (19,e,17)),e)) from t1) then (select  -min(19)+cast(avg(t1.d) AS integer) from t1) else d end & 17 & t1.e FROM t1 WHERE NOT (c-b+e*11+(c+13+11)+(13)+(select cast(avg((abs(e-d+a)/abs(t1.f))) AS integer) from t1)-t1.d+~13<=t1.e-c-17)}
+} {16}
+do_test randexpr-2.1154 {
+  db eval {SELECT coalesce((select max(b) from t1 where t1.e<t1.b-11*case when ( -c*case d when case +t1.c+t1.b when ~11*(select count(distinct d) from t1) then a else t1.d end then t1.b else (abs((select max(+coalesce((select (t1.d) from t1 where 19 not between t1.b and t1.a and t1.d between 19 and  -13),t1.a)) from t1))/abs(f)) end)<>t1.e then 17 when 19 not between 11 and b then t1.e else 19 end*t1.c),t1.c) FROM t1 WHERE not t1.f*(abs(case when ~19-17*e>=t1.d then t1.b when (select cast(avg(t1.e) AS integer) from t1) in ((abs(t1.e)/abs(t1.e))-case when f not in (t1.d,13,c) then c else t1.e end-t1.b-t1.a | b-(t1.c), -a,e) then t1.e else e end+a)/abs(t1.d)) | b not between b and t1.d}
+} {}
+do_test randexpr-2.1155 {
+  db eval {SELECT coalesce((select max(b) from t1 where t1.e<t1.b-11*case when ( -c*case d when case +t1.c+t1.b when ~11*(select count(distinct d) from t1) then a else t1.d end then t1.b else (abs((select max(+coalesce((select (t1.d) from t1 where 19 not between t1.b and t1.a and t1.d between 19 and  -13),t1.a)) from t1))/abs(f)) end)<>t1.e then 17 when 19 not between 11 and b then t1.e else 19 end*t1.c),t1.c) FROM t1 WHERE NOT (not t1.f*(abs(case when ~19-17*e>=t1.d then t1.b when (select cast(avg(t1.e) AS integer) from t1) in ((abs(t1.e)/abs(t1.e))-case when f not in (t1.d,13,c) then c else t1.e end-t1.b-t1.a | b-(t1.c), -a,e) then t1.e else e end+a)/abs(t1.d)) | b not between b and t1.d)}
+} {300}
+do_test randexpr-2.1156 {
+  db eval {SELECT  -f+( - -case when 13-b not between case when (a<>t1.f or case when not exists(select 1 from t1 where 11<>t1.a) then b when c<=t1.b then t1.f else 11 end in (select 17 from t1 union select t1.b from t1)) then b-c-b when t1.f=13 then a else 19 end | t1.d and t1.e and not exists(select 1 from t1 where 19=t1.f) then  -c else 19 end+17) FROM t1 WHERE not not exists(select 1 from t1 where ~(select cast(avg(t1.d) AS integer) from t1) | +~~case case when f-case when exists(select 1 from t1 where 13 not in (d,11,case when not exists(select 1 from t1 where f between t1.d and e) then 13 when t1.e<>19 then f else 11 end) or b in ( -d,t1.c,17)) then b else f end-(t1.d) in (t1.c,t1.c,b) then t1.b else e end when 11 then t1.e else  -c end-c<>t1.b)}
+} {-883}
+do_test randexpr-2.1157 {
+  db eval {SELECT  -f+( - -case when 13-b not between case when (a<>t1.f or case when not exists(select 1 from t1 where 11<>t1.a) then b when c<=t1.b then t1.f else 11 end in (select 17 from t1 union select t1.b from t1)) then b-c-b when t1.f=13 then a else 19 end | t1.d and t1.e and not exists(select 1 from t1 where 19=t1.f) then  -c else 19 end+17) FROM t1 WHERE NOT (not not exists(select 1 from t1 where ~(select cast(avg(t1.d) AS integer) from t1) | +~~case case when f-case when exists(select 1 from t1 where 13 not in (d,11,case when not exists(select 1 from t1 where f between t1.d and e) then 13 when t1.e<>19 then f else 11 end) or b in ( -d,t1.c,17)) then b else f end-(t1.d) in (t1.c,t1.c,b) then t1.b else e end when 11 then t1.e else  -c end-c<>t1.b))}
+} {}
+do_test randexpr-2.1158 {
+  db eval {SELECT  -f+( - -case when 13-b not between case when (a<>t1.f or case when not exists(select 1 from t1 where 11<>t1.a) then b when c<=t1.b then t1.f else 11 end in (select 17 from t1 union select t1.b from t1)) then b-c-b when t1.f=13 then a else 19 end & t1.d and t1.e and not exists(select 1 from t1 where 19=t1.f) then  -c else 19 end+17) FROM t1 WHERE not not exists(select 1 from t1 where ~(select cast(avg(t1.d) AS integer) from t1) | +~~case case when f-case when exists(select 1 from t1 where 13 not in (d,11,case when not exists(select 1 from t1 where f between t1.d and e) then 13 when t1.e<>19 then f else 11 end) or b in ( -d,t1.c,17)) then b else f end-(t1.d) in (t1.c,t1.c,b) then t1.b else e end when 11 then t1.e else  -c end-c<>t1.b)}
+} {-883}
+do_test randexpr-2.1159 {
+  db eval {SELECT +(abs(d+d+a+b+t1.d)/abs(coalesce((select (select abs(cast(avg(17-11+e*t1.d) AS integer)++cast(avg(coalesce((select max(11-+t1.f- -e-a* -19+t1.a) from t1 where  -a in (select 11 from t1 union select  -11 from t1)),e)) AS integer)) from t1) from t1 where f=17),t1.b)*a)) FROM t1 WHERE t1.b in (select t1.e from t1 union select coalesce((select max(11) from t1 where d<t1.f),f) from t1)}
+} {}
+do_test randexpr-2.1160 {
+  db eval {SELECT +(abs(d+d+a+b+t1.d)/abs(coalesce((select (select abs(cast(avg(17-11+e*t1.d) AS integer)++cast(avg(coalesce((select max(11-+t1.f- -e-a* -19+t1.a) from t1 where  -a in (select 11 from t1 union select  -11 from t1)),e)) AS integer)) from t1) from t1 where f=17),t1.b)*a)) FROM t1 WHERE NOT (t1.b in (select t1.e from t1 union select coalesce((select max(11) from t1 where d<t1.f),f) from t1))}
+} {0}
+do_test randexpr-2.1161 {
+  db eval {SELECT case when t1.b*t1.c=coalesce((select t1.f from t1 where case when exists(select 1 from t1 where t1.d in (select e from t1 union select 19 from t1)) or t1.e>t1.e then t1.a+e-a when 19>t1.c then c else t1.c end+c not between b and t1.d),t1.f) and  -(t1.b) between t1.e and  -t1.d or b<>19 then (select ~(min(13))+max(f) from t1) else (t1.b) end*t1.b FROM t1 WHERE b in (b,e,case coalesce((select max(t1.b) from t1 where e>13 or ( -(select case  -~count(distinct 17)-cast(avg((t1.f)) AS integer)*cast(avg(d) AS integer) when  -cast(avg(f) AS integer) then max(17) else  -(count(*)) end from t1)-(coalesce((select (b) from t1 where t1.b>=t1.e),t1.c)) in (17,t1.e,b)) or (exists(select 1 from t1 where (t1.d=(d))))),t1.c) when b then c else (e) end)}
+} {117200}
+do_test randexpr-2.1162 {
+  db eval {SELECT case when t1.b*t1.c=coalesce((select t1.f from t1 where case when exists(select 1 from t1 where t1.d in (select e from t1 union select 19 from t1)) or t1.e>t1.e then t1.a+e-a when 19>t1.c then c else t1.c end+c not between b and t1.d),t1.f) and  -(t1.b) between t1.e and  -t1.d or b<>19 then (select ~(min(13))+max(f) from t1) else (t1.b) end*t1.b FROM t1 WHERE NOT (b in (b,e,case coalesce((select max(t1.b) from t1 where e>13 or ( -(select case  -~count(distinct 17)-cast(avg((t1.f)) AS integer)*cast(avg(d) AS integer) when  -cast(avg(f) AS integer) then max(17) else  -(count(*)) end from t1)-(coalesce((select (b) from t1 where t1.b>=t1.e),t1.c)) in (17,t1.e,b)) or (exists(select 1 from t1 where (t1.d=(d))))),t1.c) when b then c else (e) end))}
+} {}
+do_test randexpr-2.1163 {
+  db eval {SELECT +t1.c+case when t1.e not in ((e)-(case when 17<11 then 19 when (t1.d in (d,coalesce((select max(t1.a) from t1 where not b<>t1.b),case t1.b when coalesce((select max(t1.a) from t1 where exists(select 1 from t1 where e not in (t1.f,11,17))),(19))*t1.f then c else t1.c end+ -t1.d)-t1.b+t1.e,d)) then 19 else b end)-e,t1.c, -13) then e else 17 end FROM t1 WHERE t1.e*t1.b | t1.b<>17*+coalesce((select max(t1.b) from t1 where case when coalesce((select max(b) from t1 where case when (b between 17 and d) then t1.f when t1.c between b and t1.a then t1.e else t1.a end not in (11,19,13)),11) in (t1.d,17,17) then t1.f when d<>13 then 11 else t1.a end+a<17),t1.a)-17+t1.f*d-a}
+} {800}
+do_test randexpr-2.1164 {
+  db eval {SELECT +t1.c+case when t1.e not in ((e)-(case when 17<11 then 19 when (t1.d in (d,coalesce((select max(t1.a) from t1 where not b<>t1.b),case t1.b when coalesce((select max(t1.a) from t1 where exists(select 1 from t1 where e not in (t1.f,11,17))),(19))*t1.f then c else t1.c end+ -t1.d)-t1.b+t1.e,d)) then 19 else b end)-e,t1.c, -13) then e else 17 end FROM t1 WHERE NOT (t1.e*t1.b | t1.b<>17*+coalesce((select max(t1.b) from t1 where case when coalesce((select max(b) from t1 where case when (b between 17 and d) then t1.f when t1.c between b and t1.a then t1.e else t1.a end not in (11,19,13)),11) in (t1.d,17,17) then t1.f when d<>13 then 11 else t1.a end+a<17),t1.a)-17+t1.f*d-a)}
+} {}
+do_test randexpr-2.1165 {
+  db eval {SELECT 11+case when case case f when (abs(t1.a)/abs(19))+t1.e then (abs(19)/abs(b+e)) else 13 end | 11 when (select ~~+min(t1.e) from t1) then t1.c else  -e end<>case t1.a when 17 then case when (c not between 19 and t1.b) and t1.b<>t1.d then coalesce((select a from t1 where t1.d in (t1.e,t1.f,f)),t1.e) else 13 end else d end or t1.c<t1.d then t1.f else 17 end-f FROM t1 WHERE (f*c*coalesce((select e from t1 where (exists(select 1 from t1 where +t1.e<= -e | t1.f))),a)+b in (select t1.c from t1 union select c from t1) or (t1.e between b and (19)) and 13 between t1.e and 13 and 11 in (13,t1.c,17) and exists(select 1 from t1 where t1.d in (select count(*)-max(e)-((max((11)))) from t1 union select max(17) from t1)) and c>f)}
+} {}
+do_test randexpr-2.1166 {
+  db eval {SELECT 11+case when case case f when (abs(t1.a)/abs(19))+t1.e then (abs(19)/abs(b+e)) else 13 end | 11 when (select ~~+min(t1.e) from t1) then t1.c else  -e end<>case t1.a when 17 then case when (c not between 19 and t1.b) and t1.b<>t1.d then coalesce((select a from t1 where t1.d in (t1.e,t1.f,f)),t1.e) else 13 end else d end or t1.c<t1.d then t1.f else 17 end-f FROM t1 WHERE NOT ((f*c*coalesce((select e from t1 where (exists(select 1 from t1 where +t1.e<= -e | t1.f))),a)+b in (select t1.c from t1 union select c from t1) or (t1.e between b and (19)) and 13 between t1.e and 13 and 11 in (13,t1.c,17) and exists(select 1 from t1 where t1.d in (select count(*)-max(e)-((max((11)))) from t1 union select max(17) from t1)) and c>f))}
+} {11}
+do_test randexpr-2.1167 {
+  db eval {SELECT 11+case when case case f when (abs(t1.a)/abs(19))+t1.e then (abs(19)/abs(b+e)) else 13 end & 11 when (select ~~+min(t1.e) from t1) then t1.c else  -e end<>case t1.a when 17 then case when (c not between 19 and t1.b) and t1.b<>t1.d then coalesce((select a from t1 where t1.d in (t1.e,t1.f,f)),t1.e) else 13 end else d end or t1.c<t1.d then t1.f else 17 end-f FROM t1 WHERE NOT ((f*c*coalesce((select e from t1 where (exists(select 1 from t1 where +t1.e<= -e | t1.f))),a)+b in (select t1.c from t1 union select c from t1) or (t1.e between b and (19)) and 13 between t1.e and 13 and 11 in (13,t1.c,17) and exists(select 1 from t1 where t1.d in (select count(*)-max(e)-((max((11)))) from t1 union select max(17) from t1)) and c>f))}
+} {11}
+do_test randexpr-2.1168 {
+  db eval {SELECT d-case when ~c<>case when not exists(select 1 from t1 where  -t1.b<>19) then coalesce((select max(t1.f) from t1 where exists(select 1 from t1 where (t1.c in (select ~~+~max(~case when 13 not between t1.d and t1.d or c between c and f then t1.f else t1.a end)*abs(count(*)+(min( -t1.e))) from t1 union select cast(avg(e) AS integer) from t1) and (abs(t1.f*f-t1.a)/abs(d))>t1.b)) and (17) not in ( -t1.f,13,17)),19) else a end then b else f end FROM t1 WHERE f=(select case ~ -~count(distinct t1.b)+count(distinct d) |  -count(distinct t1.e)*count(*)* -cast(avg(b) AS integer)*(cast(avg(13) AS integer)) when  -min(19) then min(t1.e) else ((cast(avg(17) AS integer))) end from t1) or 19>=(19) and not exists(select 1 from t1 where (select count(*) from t1)*t1.d not between 19+11 and d) and  -t1.e not in (e,t1.a, -a) and t1.e between t1.f and (t1.b) or c in ( -11,17,t1.c) or t1.a in (a,11,t1.d)}
+} {200}
+do_test randexpr-2.1169 {
+  db eval {SELECT d-case when ~c<>case when not exists(select 1 from t1 where  -t1.b<>19) then coalesce((select max(t1.f) from t1 where exists(select 1 from t1 where (t1.c in (select ~~+~max(~case when 13 not between t1.d and t1.d or c between c and f then t1.f else t1.a end)*abs(count(*)+(min( -t1.e))) from t1 union select cast(avg(e) AS integer) from t1) and (abs(t1.f*f-t1.a)/abs(d))>t1.b)) and (17) not in ( -t1.f,13,17)),19) else a end then b else f end FROM t1 WHERE NOT (f=(select case ~ -~count(distinct t1.b)+count(distinct d) |  -count(distinct t1.e)*count(*)* -cast(avg(b) AS integer)*(cast(avg(13) AS integer)) when  -min(19) then min(t1.e) else ((cast(avg(17) AS integer))) end from t1) or 19>=(19) and not exists(select 1 from t1 where (select count(*) from t1)*t1.d not between 19+11 and d) and  -t1.e not in (e,t1.a, -a) and t1.e between t1.f and (t1.b) or c in ( -11,17,t1.c) or t1.a in (a,11,t1.d))}
+} {}
+do_test randexpr-2.1170 {
+  db eval {SELECT case when a in (select t1.b from t1 union select coalesce((select ~19 from t1 where e>13*t1.d or c in (select b from t1 union select case a*t1.f when e then (t1.c) else (t1.b) end from t1)),t1.a) from t1) and t1.d>b or not exists(select 1 from t1 where t1.e in (select count(*)*min(t1.b)*~count(*) from t1 union select case  -min((19)) when  -max(b) then (min(t1.a)) else (count(distinct t1.d)) end from t1)) then (t1.c) when exists(select 1 from t1 where f not between 19 and f) then 19 else t1.c end-a FROM t1 WHERE a=coalesce((select f from t1 where t1.c in (11,(abs(coalesce((select max(t1.d) from t1 where (abs(t1.c | 13)/abs(11)) not in (b+case when coalesce((select max(b) from t1 where 11 between d and t1.a),b)<a then 19 when (e) not in (t1.e,13,t1.d) then t1.c else  - -t1.e end-19,a,17)),19))/abs(t1.a)),t1.b) or (((13)>=t1.b))),c) and f between 19 and t1.d or c>(f)}
+} {}
+do_test randexpr-2.1171 {
+  db eval {SELECT case when a in (select t1.b from t1 union select coalesce((select ~19 from t1 where e>13*t1.d or c in (select b from t1 union select case a*t1.f when e then (t1.c) else (t1.b) end from t1)),t1.a) from t1) and t1.d>b or not exists(select 1 from t1 where t1.e in (select count(*)*min(t1.b)*~count(*) from t1 union select case  -min((19)) when  -max(b) then (min(t1.a)) else (count(distinct t1.d)) end from t1)) then (t1.c) when exists(select 1 from t1 where f not between 19 and f) then 19 else t1.c end-a FROM t1 WHERE NOT (a=coalesce((select f from t1 where t1.c in (11,(abs(coalesce((select max(t1.d) from t1 where (abs(t1.c | 13)/abs(11)) not in (b+case when coalesce((select max(b) from t1 where 11 between d and t1.a),b)<a then 19 when (e) not in (t1.e,13,t1.d) then t1.c else  - -t1.e end-19,a,17)),19))/abs(t1.a)),t1.b) or (((13)>=t1.b))),c) and f between 19 and t1.d or c>(f))}
+} {200}
+do_test randexpr-2.1172 {
+  db eval {SELECT case when  -(t1.f)- -case when t1.e not in ((t1.d)+a-t1.a,t1.c, - -a) then t1.b when (not exists(select 1 from t1 where t1.d>= -t1.f)) then  -19 else f end-t1.f in (select cast(avg(19) AS integer)*case count(*) when abs((++min( -11))*max(13)-count(distinct 13)) then min(t1.a) else count(distinct 17) end from t1 union select count(distinct t1.a) from t1) then t1.c when b not between t1.f and 13 then e else t1.a end FROM t1 WHERE 11 not between ~17+d and ~case when t1.b in (c*((abs(case 13 when  -(select abs(count(distinct coalesce((select max(coalesce((select t1.b from t1 where not exists(select 1 from t1 where (t1.c) in (t1.a,e,13))),t1.d)) from t1 where not t1.d>c),b))) from t1) then t1.f else t1.b end- -t1.c)/abs(c))+a),t1.d,t1.a) then (t1.c) else (d) end-13 or  -t1.a in (17,a,f)}
+} {500}
+do_test randexpr-2.1173 {
+  db eval {SELECT case when  -(t1.f)- -case when t1.e not in ((t1.d)+a-t1.a,t1.c, - -a) then t1.b when (not exists(select 1 from t1 where t1.d>= -t1.f)) then  -19 else f end-t1.f in (select cast(avg(19) AS integer)*case count(*) when abs((++min( -11))*max(13)-count(distinct 13)) then min(t1.a) else count(distinct 17) end from t1 union select count(distinct t1.a) from t1) then t1.c when b not between t1.f and 13 then e else t1.a end FROM t1 WHERE NOT (11 not between ~17+d and ~case when t1.b in (c*((abs(case 13 when  -(select abs(count(distinct coalesce((select max(coalesce((select t1.b from t1 where not exists(select 1 from t1 where (t1.c) in (t1.a,e,13))),t1.d)) from t1 where not t1.d>c),b))) from t1) then t1.f else t1.b end- -t1.c)/abs(c))+a),t1.d,t1.a) then (t1.c) else (d) end-13 or  -t1.a in (17,a,f))}
+} {}
+do_test randexpr-2.1174 {
+  db eval {SELECT coalesce((select 17 from t1 where not exists(select 1 from t1 where (t1.b- -b+(select +case max(b)-~count(distinct e*(select case max(c) when abs((count(*))) then max(t1.f) else max(t1.c) end+cast(avg(t1.b) AS integer) from t1)) when abs(count(distinct e*19)) then max(b) else max(t1.c) end | count(distinct t1.e) from t1)-b*+t1.b not in ((11),17,13)))),t1.e) FROM t1 WHERE t1.c in (select min(coalesce((select 17 from t1 where t1.c | 17>=(abs(t1.a)/abs(case when t1.e not in (19,t1.d,19) then a when 13<=case when not exists(select 1 from t1 where (abs(e)/abs(t1.c)) in (select 19 from t1 union select d from t1) and t1.c>=17 or 19=t1.a) then f else a end then t1.d else e end))-f),e))*min(f) | ++min(a) from t1 union select cast(avg(f) AS integer) from t1)}
+} {}
+do_test randexpr-2.1175 {
+  db eval {SELECT coalesce((select 17 from t1 where not exists(select 1 from t1 where (t1.b- -b+(select +case max(b)-~count(distinct e*(select case max(c) when abs((count(*))) then max(t1.f) else max(t1.c) end+cast(avg(t1.b) AS integer) from t1)) when abs(count(distinct e*19)) then max(b) else max(t1.c) end | count(distinct t1.e) from t1)-b*+t1.b not in ((11),17,13)))),t1.e) FROM t1 WHERE NOT (t1.c in (select min(coalesce((select 17 from t1 where t1.c | 17>=(abs(t1.a)/abs(case when t1.e not in (19,t1.d,19) then a when 13<=case when not exists(select 1 from t1 where (abs(e)/abs(t1.c)) in (select 19 from t1 union select d from t1) and t1.c>=17 or 19=t1.a) then f else a end then t1.d else e end))-f),e))*min(f) | ++min(a) from t1 union select cast(avg(f) AS integer) from t1))}
+} {500}
+do_test randexpr-2.1176 {
+  db eval {SELECT coalesce((select 17 from t1 where not exists(select 1 from t1 where (t1.b- -b+(select +case max(b)-~count(distinct e*(select case max(c) when abs((count(*))) then max(t1.f) else max(t1.c) end+cast(avg(t1.b) AS integer) from t1)) when abs(count(distinct e*19)) then max(b) else max(t1.c) end & count(distinct t1.e) from t1)-b*+t1.b not in ((11),17,13)))),t1.e) FROM t1 WHERE NOT (t1.c in (select min(coalesce((select 17 from t1 where t1.c | 17>=(abs(t1.a)/abs(case when t1.e not in (19,t1.d,19) then a when 13<=case when not exists(select 1 from t1 where (abs(e)/abs(t1.c)) in (select 19 from t1 union select d from t1) and t1.c>=17 or 19=t1.a) then f else a end then t1.d else e end))-f),e))*min(f) | ++min(a) from t1 union select cast(avg(f) AS integer) from t1))}
+} {500}
+do_test randexpr-2.1177 {
+  db eval {SELECT case coalesce((select t1.e from t1 where +coalesce((select a from t1 where 13 | b | t1.b<=11*a*case when exists(select 1 from t1 where (a-t1.d+t1.e-f<17 and  -17 between 19 and a)) then c when 17 between f and t1.c then a*11 else t1.d end),t1.e) not in (b,t1.f,t1.d)),a) when c then  -c else t1.b end FROM t1 WHERE (exists(select 1 from t1 where case when not exists(select 1 from t1 where (select cast(avg(d) AS integer) from t1) in (select a from t1 union select case case when t1.e>t1.d or t1.b in (select c from t1 union select e from t1) or t1.a>=f and b>=11 then t1.c-(t1.c)*19 when b not in (e,c,t1.d) then t1.b else t1.c end when 13 then f else  -t1.f end from t1)) then 17 when not exists(select 1 from t1 where not exists(select 1 from t1 where f not in (t1.d,f, -t1.b)) or  -19<=t1.c) or t1.e between 13 and t1.a then f else d end<>t1.f) and f between 11 and t1.c and t1.e not in (t1.d,c,t1.e)) or d not between t1.b and t1.d}
+} {}
+do_test randexpr-2.1178 {
+  db eval {SELECT case coalesce((select t1.e from t1 where +coalesce((select a from t1 where 13 | b | t1.b<=11*a*case when exists(select 1 from t1 where (a-t1.d+t1.e-f<17 and  -17 between 19 and a)) then c when 17 between f and t1.c then a*11 else t1.d end),t1.e) not in (b,t1.f,t1.d)),a) when c then  -c else t1.b end FROM t1 WHERE NOT ((exists(select 1 from t1 where case when not exists(select 1 from t1 where (select cast(avg(d) AS integer) from t1) in (select a from t1 union select case case when t1.e>t1.d or t1.b in (select c from t1 union select e from t1) or t1.a>=f and b>=11 then t1.c-(t1.c)*19 when b not in (e,c,t1.d) then t1.b else t1.c end when 13 then f else  -t1.f end from t1)) then 17 when not exists(select 1 from t1 where not exists(select 1 from t1 where f not in (t1.d,f, -t1.b)) or  -19<=t1.c) or t1.e between 13 and t1.a then f else d end<>t1.f) and f between 11 and t1.c and t1.e not in (t1.d,c,t1.e)) or d not between t1.b and t1.d)}
+} {200}
+do_test randexpr-2.1179 {
+  db eval {SELECT case coalesce((select t1.e from t1 where +coalesce((select a from t1 where 13 & b & t1.b<=11*a*case when exists(select 1 from t1 where (a-t1.d+t1.e-f<17 and  -17 between 19 and a)) then c when 17 between f and t1.c then a*11 else t1.d end),t1.e) not in (b,t1.f,t1.d)),a) when c then  -c else t1.b end FROM t1 WHERE NOT ((exists(select 1 from t1 where case when not exists(select 1 from t1 where (select cast(avg(d) AS integer) from t1) in (select a from t1 union select case case when t1.e>t1.d or t1.b in (select c from t1 union select e from t1) or t1.a>=f and b>=11 then t1.c-(t1.c)*19 when b not in (e,c,t1.d) then t1.b else t1.c end when 13 then f else  -t1.f end from t1)) then 17 when not exists(select 1 from t1 where not exists(select 1 from t1 where f not in (t1.d,f, -t1.b)) or  -19<=t1.c) or t1.e between 13 and t1.a then f else d end<>t1.f) and f between 11 and t1.c and t1.e not in (t1.d,c,t1.e)) or d not between t1.b and t1.d)}
+} {200}
+do_test randexpr-2.1180 {
+  db eval {SELECT case when exists(select 1 from t1 where b<>coalesce((select (select + - -count(*)-~count(*)+~+case  - -count(distinct (t1.d)) when max(t1.d) then count(*) else max(a) end+(cast(avg(17) AS integer)) from t1) | d from t1 where not exists(select 1 from t1 where (abs(f)/abs(t1.c)) between 13+a and  -t1.d)),19) or (coalesce((select t1.d from t1 where (( - -19)>a)),t1.f) in (e,e,t1.e))) then t1.b*t1.f when t1.d not between (a) and a then e else b end FROM t1 WHERE not exists(select 1 from t1 where a in (select 13 from t1 union select 17 from t1))}
+} {120000}
+do_test randexpr-2.1181 {
+  db eval {SELECT case when exists(select 1 from t1 where b<>coalesce((select (select + - -count(*)-~count(*)+~+case  - -count(distinct (t1.d)) when max(t1.d) then count(*) else max(a) end+(cast(avg(17) AS integer)) from t1) | d from t1 where not exists(select 1 from t1 where (abs(f)/abs(t1.c)) between 13+a and  -t1.d)),19) or (coalesce((select t1.d from t1 where (( - -19)>a)),t1.f) in (e,e,t1.e))) then t1.b*t1.f when t1.d not between (a) and a then e else b end FROM t1 WHERE NOT (not exists(select 1 from t1 where a in (select 13 from t1 union select 17 from t1)))}
+} {}
+do_test randexpr-2.1182 {
+  db eval {SELECT case when exists(select 1 from t1 where b<>coalesce((select (select + - -count(*)-~count(*)+~+case  - -count(distinct (t1.d)) when max(t1.d) then count(*) else max(a) end+(cast(avg(17) AS integer)) from t1) & d from t1 where not exists(select 1 from t1 where (abs(f)/abs(t1.c)) between 13+a and  -t1.d)),19) or (coalesce((select t1.d from t1 where (( - -19)>a)),t1.f) in (e,e,t1.e))) then t1.b*t1.f when t1.d not between (a) and a then e else b end FROM t1 WHERE not exists(select 1 from t1 where a in (select 13 from t1 union select 17 from t1))}
+} {120000}
+do_test randexpr-2.1183 {
+  db eval {SELECT coalesce((select case when f>17-t1.f then (select +max(coalesce((select +11 from t1 where coalesce((select max(d) from t1 where +t1.c between (f) and c),t1.f) not in (c, -f,t1.e)),d)) from t1) else 17+19 end from t1 where not not exists(select 1 from t1 where t1.a in (select a from t1 union select t1.a from t1) and 17=d or (17)<=(( -19)) and t1.f in (select d from t1 union select 13 from t1) or 19>13 or t1.b not in (t1.b,17,d))), -(t1.c)) FROM t1 WHERE +t1.a-13+(select count(distinct a) from t1)-e*e*case when coalesce((select max(coalesce((select a from t1 where ((case b+t1.c-t1.c*d*17 when t1.a then t1.a else f end<>c))),t1.b+13)) from t1 where t1.f between 17 and t1.d),t1.c)<=(b) then f else t1.e end-13<>t1.f}
+} {11}
+do_test randexpr-2.1184 {
+  db eval {SELECT coalesce((select case when f>17-t1.f then (select +max(coalesce((select +11 from t1 where coalesce((select max(d) from t1 where +t1.c between (f) and c),t1.f) not in (c, -f,t1.e)),d)) from t1) else 17+19 end from t1 where not not exists(select 1 from t1 where t1.a in (select a from t1 union select t1.a from t1) and 17=d or (17)<=(( -19)) and t1.f in (select d from t1 union select 13 from t1) or 19>13 or t1.b not in (t1.b,17,d))), -(t1.c)) FROM t1 WHERE NOT (+t1.a-13+(select count(distinct a) from t1)-e*e*case when coalesce((select max(coalesce((select a from t1 where ((case b+t1.c-t1.c*d*17 when t1.a then t1.a else f end<>c))),t1.b+13)) from t1 where t1.f between 17 and t1.d),t1.c)<=(b) then f else t1.e end-13<>t1.f)}
+} {}
+do_test randexpr-2.1185 {
+  db eval {SELECT coalesce((select 13 from t1 where ~(select max(b) from t1)<= -+d*f+t1.b*f or coalesce((select max(case when d=(abs(19)/abs(t1.f)) then case b+d when (abs(coalesce((select 11 from t1 where t1.f between  -d and c),t1.f))/abs(t1.a)) then b else t1.d end when a<t1.d then 13 else 11 end) from t1 where a not between t1.e and b),t1.d)>=t1.e),17)+ -c FROM t1 WHERE t1.b-+(t1.b) in (select a from t1 union select 19 from t1)}
+} {}
+do_test randexpr-2.1186 {
+  db eval {SELECT coalesce((select 13 from t1 where ~(select max(b) from t1)<= -+d*f+t1.b*f or coalesce((select max(case when d=(abs(19)/abs(t1.f)) then case b+d when (abs(coalesce((select 11 from t1 where t1.f between  -d and c),t1.f))/abs(t1.a)) then b else t1.d end when a<t1.d then 13 else 11 end) from t1 where a not between t1.e and b),t1.d)>=t1.e),17)+ -c FROM t1 WHERE NOT (t1.b-+(t1.b) in (select a from t1 union select 19 from t1))}
+} {-283}
+do_test randexpr-2.1187 {
+  db eval {SELECT case when (abs((abs(d)/abs(t1.f-c)))/abs( -t1.f))*case when (t1.c not in (case when t1.b>case t1.d when t1.b then e else 11 end then t1.a when ( -t1.d in (select  -count(*)-cast(avg(f) AS integer) from t1 union select count(*) from t1)) or 11 in (e,t1.e,c) then a else b end,t1.a,11) or t1.a in (17,t1.a,t1.d) and b>(t1.a)) then 11 when c<b then t1.f+t1.e else b end+t1.a>t1.b then t1.c else 17 end FROM t1 WHERE t1.b>f}
+} {}
+do_test randexpr-2.1188 {
+  db eval {SELECT case when (abs((abs(d)/abs(t1.f-c)))/abs( -t1.f))*case when (t1.c not in (case when t1.b>case t1.d when t1.b then e else 11 end then t1.a when ( -t1.d in (select  -count(*)-cast(avg(f) AS integer) from t1 union select count(*) from t1)) or 11 in (e,t1.e,c) then a else b end,t1.a,11) or t1.a in (17,t1.a,t1.d) and b>(t1.a)) then 11 when c<b then t1.f+t1.e else b end+t1.a>t1.b then t1.c else 17 end FROM t1 WHERE NOT (t1.b>f)}
+} {17}
+do_test randexpr-2.1189 {
+  db eval {SELECT t1.e-case when case when ((exists(select 1 from t1 where not exists(select 1 from t1 where case when not 13<=13 or (t1.c<>t1.e) then t1.d else +13 end+13 in (select max(13) | max((t1.b)) from t1 union select max(f) from t1))))) then t1.f else ~t1.e | t1.d*t1.b end+11 not between t1.c and 13 then b when (t1.f not in (19,t1.f,t1.d)) then c else  -b end FROM t1 WHERE ( -(select  -min(13-t1.b) from t1)-coalesce((select case when  -d>=t1.e or 11 between 17 and  -t1.e then 19+f when t1.f=11 then  -t1.c else t1.b end from t1 where t1.a not in (11,t1.e,t1.a)),t1.c)*11 in (select  -case abs((abs(min(t1.d)))) when max(19) then cast(avg(f) AS integer) else case count(*) when count(*) then (count(distinct t1.f)) else cast(avg(11) AS integer) end end from t1 union select min(d) from t1)) or b in (select (count(*)) from t1 union select max(t1.a) from t1)}
+} {}
+do_test randexpr-2.1190 {
+  db eval {SELECT t1.e-case when case when ((exists(select 1 from t1 where not exists(select 1 from t1 where case when not 13<=13 or (t1.c<>t1.e) then t1.d else +13 end+13 in (select max(13) | max((t1.b)) from t1 union select max(f) from t1))))) then t1.f else ~t1.e | t1.d*t1.b end+11 not between t1.c and 13 then b when (t1.f not in (19,t1.f,t1.d)) then c else  -b end FROM t1 WHERE NOT (( -(select  -min(13-t1.b) from t1)-coalesce((select case when  -d>=t1.e or 11 between 17 and  -t1.e then 19+f when t1.f=11 then  -t1.c else t1.b end from t1 where t1.a not in (11,t1.e,t1.a)),t1.c)*11 in (select  -case abs((abs(min(t1.d)))) when max(19) then cast(avg(f) AS integer) else case count(*) when count(*) then (count(distinct t1.f)) else cast(avg(11) AS integer) end end from t1 union select min(d) from t1)) or b in (select (count(*)) from t1 union select max(t1.a) from t1))}
+} {300}
+do_test randexpr-2.1191 {
+  db eval {SELECT t1.e-case when case when ((exists(select 1 from t1 where not exists(select 1 from t1 where case when not 13<=13 or (t1.c<>t1.e) then t1.d else +13 end+13 in (select max(13) & max((t1.b)) from t1 union select max(f) from t1))))) then t1.f else ~t1.e & t1.d*t1.b end+11 not between t1.c and 13 then b when (t1.f not in (19,t1.f,t1.d)) then c else  -b end FROM t1 WHERE NOT (( -(select  -min(13-t1.b) from t1)-coalesce((select case when  -d>=t1.e or 11 between 17 and  -t1.e then 19+f when t1.f=11 then  -t1.c else t1.b end from t1 where t1.a not in (11,t1.e,t1.a)),t1.c)*11 in (select  -case abs((abs(min(t1.d)))) when max(19) then cast(avg(f) AS integer) else case count(*) when count(*) then (count(distinct t1.f)) else cast(avg(11) AS integer) end end from t1 union select min(d) from t1)) or b in (select (count(*)) from t1 union select max(t1.a) from t1))}
+} {300}
+do_test randexpr-2.1192 {
+  db eval {SELECT (coalesce((select c*(select +~count(distinct 19)-cast(avg(~ -c) AS integer)-max( -f)-cast(avg(t1.d) AS integer) from t1)+t1.a*t1.f+t1.e-a*b from t1 where not t1.e<t1.b or 11=d and 19<>d and 11<=t1.e and (not exists(select 1 from t1 where exists(select 1 from t1 where (13=a)) or t1.e>t1.b))),19)) FROM t1 WHERE coalesce((select max(t1.f*11) from t1 where not exists(select 1 from t1 where t1.a<>17) and t1.b>case (abs(b* -t1.a)/abs(11)) when b*case case when f>=t1.e then 11 when t1.b<=d then 17 else a end* -a when e then 11 else c end then (t1.b) else 19 end or t1.f<13), -b)>=e and ((d in (select f from t1 union select f from t1)))}
+} {}
+do_test randexpr-2.1193 {
+  db eval {SELECT (coalesce((select c*(select +~count(distinct 19)-cast(avg(~ -c) AS integer)-max( -f)-cast(avg(t1.d) AS integer) from t1)+t1.a*t1.f+t1.e-a*b from t1 where not t1.e<t1.b or 11=d and 19<>d and 11<=t1.e and (not exists(select 1 from t1 where exists(select 1 from t1 where (13=a)) or t1.e>t1.b))),19)) FROM t1 WHERE NOT (coalesce((select max(t1.f*11) from t1 where not exists(select 1 from t1 where t1.a<>17) and t1.b>case (abs(b* -t1.a)/abs(11)) when b*case case when f>=t1.e then 11 when t1.b<=d then 17 else a end* -a when e then 11 else c end then (t1.b) else 19 end or t1.f<13), -b)>=e and ((d in (select f from t1 union select f from t1))))}
+} {10200}
+do_test randexpr-2.1194 {
+  db eval {SELECT b-b+case when d+e between 17 and case when exists(select 1 from t1 where coalesce((select max(coalesce((select 11 from t1 where t1.e not between 13 and case when t1.e<>c then c | 19+t1.a else 17 end),t1.a)) from t1 where t1.d<=17 or a not in (b,11,a)),(t1.b))+b>=t1.a) then 11 else a end then d else a end+11*f FROM t1 WHERE (t1.b*19<=17)}
+} {}
+do_test randexpr-2.1195 {
+  db eval {SELECT b-b+case when d+e between 17 and case when exists(select 1 from t1 where coalesce((select max(coalesce((select 11 from t1 where t1.e not between 13 and case when t1.e<>c then c | 19+t1.a else 17 end),t1.a)) from t1 where t1.d<=17 or a not in (b,11,a)),(t1.b))+b>=t1.a) then 11 else a end then d else a end+11*f FROM t1 WHERE NOT ((t1.b*19<=17))}
+} {6700}
+do_test randexpr-2.1196 {
+  db eval {SELECT b-b+case when d+e between 17 and case when exists(select 1 from t1 where coalesce((select max(coalesce((select 11 from t1 where t1.e not between 13 and case when t1.e<>c then c & 19+t1.a else 17 end),t1.a)) from t1 where t1.d<=17 or a not in (b,11,a)),(t1.b))+b>=t1.a) then 11 else a end then d else a end+11*f FROM t1 WHERE NOT ((t1.b*19<=17))}
+} {6700}
+do_test randexpr-2.1197 {
+  db eval {SELECT +(abs(13)/abs(+~~case t1.e | +11-b-coalesce((select max(c) from t1 where 19 in (select cast(avg(coalesce((select max(case when t1.a<t1.d and t1.f<(11) then t1.f else  -a end*t1.c) from t1 where e<=d and c<f),17)) AS integer)- -max(t1.e)-count(distinct a) from t1 union select max(f) from t1)),t1.c) when t1.a then t1.e else t1.c end*17)) FROM t1 WHERE t1.a between 19 and (t1.b)}
+} {0}
+do_test randexpr-2.1198 {
+  db eval {SELECT +(abs(13)/abs(+~~case t1.e | +11-b-coalesce((select max(c) from t1 where 19 in (select cast(avg(coalesce((select max(case when t1.a<t1.d and t1.f<(11) then t1.f else  -a end*t1.c) from t1 where e<=d and c<f),17)) AS integer)- -max(t1.e)-count(distinct a) from t1 union select max(f) from t1)),t1.c) when t1.a then t1.e else t1.c end*17)) FROM t1 WHERE NOT (t1.a between 19 and (t1.b))}
+} {}
+do_test randexpr-2.1199 {
+  db eval {SELECT +(abs(13)/abs(+~~case t1.e & +11-b-coalesce((select max(c) from t1 where 19 in (select cast(avg(coalesce((select max(case when t1.a<t1.d and t1.f<(11) then t1.f else  -a end*t1.c) from t1 where e<=d and c<f),17)) AS integer)- -max(t1.e)-count(distinct a) from t1 union select max(f) from t1)),t1.c) when t1.a then t1.e else t1.c end*17)) FROM t1 WHERE t1.a between 19 and (t1.b)}
+} {0}
+do_test randexpr-2.1200 {
+  db eval {SELECT coalesce((select t1.f from t1 where case d-(select case cast(avg(coalesce((select case when not 11<>e*c then 11 else 13 end from t1 where  -t1.c not between t1.f and 11),t1.e)) AS integer) when case max( -d) when ((min(17))) then cast(avg(t1.a) AS integer) else min(e) end+cast(avg((t1.b)) AS integer) then cast(avg(t1.d) AS integer) else  -(max(c)) end from t1)-f | b*13+e when t1.b then (f) else t1.a end in (select d from t1 union select 17 from t1)),d) FROM t1 WHERE t1.e*c>13-+t1.f | (abs((select abs(min(b)-abs( - -count(distinct 17-d-13+ -e-(t1.d)*e)+max(t1.e)) | (~abs((max(c)))+cast(avg(17) AS integer)-count(*)*cast(avg(11) AS integer))) from t1))/abs(t1.f))}
+} {400}
+do_test randexpr-2.1201 {
+  db eval {SELECT coalesce((select t1.f from t1 where case d-(select case cast(avg(coalesce((select case when not 11<>e*c then 11 else 13 end from t1 where  -t1.c not between t1.f and 11),t1.e)) AS integer) when case max( -d) when ((min(17))) then cast(avg(t1.a) AS integer) else min(e) end+cast(avg((t1.b)) AS integer) then cast(avg(t1.d) AS integer) else  -(max(c)) end from t1)-f | b*13+e when t1.b then (f) else t1.a end in (select d from t1 union select 17 from t1)),d) FROM t1 WHERE NOT (t1.e*c>13-+t1.f | (abs((select abs(min(b)-abs( - -count(distinct 17-d-13+ -e-(t1.d)*e)+max(t1.e)) | (~abs((max(c)))+cast(avg(17) AS integer)-count(*)*cast(avg(11) AS integer))) from t1))/abs(t1.f)))}
+} {}
+do_test randexpr-2.1202 {
+  db eval {SELECT coalesce((select t1.f from t1 where case d-(select case cast(avg(coalesce((select case when not 11<>e*c then 11 else 13 end from t1 where  -t1.c not between t1.f and 11),t1.e)) AS integer) when case max( -d) when ((min(17))) then cast(avg(t1.a) AS integer) else min(e) end+cast(avg((t1.b)) AS integer) then cast(avg(t1.d) AS integer) else  -(max(c)) end from t1)-f & b*13+e when t1.b then (f) else t1.a end in (select d from t1 union select 17 from t1)),d) FROM t1 WHERE t1.e*c>13-+t1.f | (abs((select abs(min(b)-abs( - -count(distinct 17-d-13+ -e-(t1.d)*e)+max(t1.e)) | (~abs((max(c)))+cast(avg(17) AS integer)-count(*)*cast(avg(11) AS integer))) from t1))/abs(t1.f))}
+} {400}
+do_test randexpr-2.1203 {
+  db eval {SELECT t1.b-~case when ~(abs(17)/abs(t1.a))+17+t1.b in (select count(distinct d) | count(*) from t1 union select case count(*) | count(distinct e) when count(*) then  -count(*) else cast(avg(11) AS integer) end from t1) and t1.e>b or e not between (e) and c and 17 in (t1.c,b,b) and t1.a not between a and (t1.f) then coalesce((select t1.a*t1.c from t1 where  -11 in (t1.a,(t1.f), -f)),13)*t1.c else t1.f end FROM t1 WHERE (t1.e<>t1.a+~~c-t1.a+13*e-17+t1.b)}
+} {801}
+do_test randexpr-2.1204 {
+  db eval {SELECT t1.b-~case when ~(abs(17)/abs(t1.a))+17+t1.b in (select count(distinct d) | count(*) from t1 union select case count(*) | count(distinct e) when count(*) then  -count(*) else cast(avg(11) AS integer) end from t1) and t1.e>b or e not between (e) and c and 17 in (t1.c,b,b) and t1.a not between a and (t1.f) then coalesce((select t1.a*t1.c from t1 where  -11 in (t1.a,(t1.f), -f)),13)*t1.c else t1.f end FROM t1 WHERE NOT ((t1.e<>t1.a+~~c-t1.a+13*e-17+t1.b))}
+} {}
+do_test randexpr-2.1205 {
+  db eval {SELECT t1.b-~case when ~(abs(17)/abs(t1.a))+17+t1.b in (select count(distinct d) & count(*) from t1 union select case count(*) & count(distinct e) when count(*) then  -count(*) else cast(avg(11) AS integer) end from t1) and t1.e>b or e not between (e) and c and 17 in (t1.c,b,b) and t1.a not between a and (t1.f) then coalesce((select t1.a*t1.c from t1 where  -11 in (t1.a,(t1.f), -f)),13)*t1.c else t1.f end FROM t1 WHERE (t1.e<>t1.a+~~c-t1.a+13*e-17+t1.b)}
+} {801}
+do_test randexpr-2.1206 {
+  db eval {SELECT ((abs(b)/abs(t1.e+coalesce((select max((abs(coalesce((select max(11) from t1 where t1.a<=coalesce((select case when t1.a in (case t1.b when t1.d then t1.d else a end,17,11) then 13 when t1.a>b then 19 else d end from t1 where c in (select (~case count(*) when min(f) then  -min(d) else count(distinct (t1.f)) end)*(count(*)) from t1 union select  -min((t1.c)) from t1)),11) and (b<=t1.c)),t1.f))/abs(e))-13) from t1 where b not in (d,( -e),e)),c)-t1.c))) FROM t1 WHERE (exists(select 1 from t1 where b in (select +( -abs(max(19+((select case  -+cast(avg(e) AS integer) when  -max(19)-min(t1.c) | count(*) then count(distinct t1.e) else min(f) end-cast(avg( -19) AS integer)*count(*) | count(*) from t1))-17)) | +cast(avg((select cast(avg(a) AS integer) from t1)*f) AS integer)-cast(avg(13-t1.a+b) AS integer))+ -max(t1.a) from t1 union select cast(avg( -f) AS integer) from t1)))}
+} {}
+do_test randexpr-2.1207 {
+  db eval {SELECT ((abs(b)/abs(t1.e+coalesce((select max((abs(coalesce((select max(11) from t1 where t1.a<=coalesce((select case when t1.a in (case t1.b when t1.d then t1.d else a end,17,11) then 13 when t1.a>b then 19 else d end from t1 where c in (select (~case count(*) when min(f) then  -min(d) else count(distinct (t1.f)) end)*(count(*)) from t1 union select  -min((t1.c)) from t1)),11) and (b<=t1.c)),t1.f))/abs(e))-13) from t1 where b not in (d,( -e),e)),c)-t1.c))) FROM t1 WHERE NOT ((exists(select 1 from t1 where b in (select +( -abs(max(19+((select case  -+cast(avg(e) AS integer) when  -max(19)-min(t1.c) | count(*) then count(distinct t1.e) else min(f) end-cast(avg( -19) AS integer)*count(*) | count(*) from t1))-17)) | +cast(avg((select cast(avg(a) AS integer) from t1)*f) AS integer)-cast(avg(13-t1.a+b) AS integer))+ -max(t1.a) from t1 union select cast(avg( -f) AS integer) from t1))))}
+} {1}
+do_test randexpr-2.1208 {
+  db eval {SELECT t1.f-17+(abs(case when ~e*coalesce((select max(coalesce((select d from t1 where not  -(19*t1.d*17) not in (t1.a*t1.c,b,b)),f)) from t1 where 13 between t1.d and 19),11* -t1.e)-(t1.a)>d then 17 when (e in (select  -(t1.d) from t1 union select  -(t1.b) from t1)) then e else  -t1.d end)/abs(17))*a FROM t1 WHERE 17 in (select 19 from t1 union select  -17 | d from t1)}
+} {}
+do_test randexpr-2.1209 {
+  db eval {SELECT t1.f-17+(abs(case when ~e*coalesce((select max(coalesce((select d from t1 where not  -(19*t1.d*17) not in (t1.a*t1.c,b,b)),f)) from t1 where 13 between t1.d and 19),11* -t1.e)-(t1.a)>d then 17 when (e in (select  -(t1.d) from t1 union select  -(t1.b) from t1)) then e else  -t1.d end)/abs(17))*a FROM t1 WHERE NOT (17 in (select 19 from t1 union select  -17 | d from t1))}
+} {683}
+do_test randexpr-2.1210 {
+  db eval {SELECT case t1.a when case when 13+( -f-b)*c-t1.d-t1.c | c+d>=d*case when not ++c+t1.d<>+b- -a*t1.e then  -f else 17 end+t1.f then t1.e when 11<>19 then c else 11 end then e else f end FROM t1 WHERE (case when (abs(t1.f+case f-case when exists(select 1 from t1 where t1.c>13) then t1.e when t1.f>= -f then b else e end when 13 then t1.e else t1.c end)/abs(c)) in (select max(f)*max(f)*( -max( -17)) | min(t1.a) | cast(avg(13) AS integer)+count(*) from t1 union select ( -max(e)) from t1) then ( -d) when c not between f and ( -c) then 13 else b end between t1.a and e) and 19 not between 19 and c}
+} {}
+do_test randexpr-2.1211 {
+  db eval {SELECT case t1.a when case when 13+( -f-b)*c-t1.d-t1.c | c+d>=d*case when not ++c+t1.d<>+b- -a*t1.e then  -f else 17 end+t1.f then t1.e when 11<>19 then c else 11 end then e else f end FROM t1 WHERE NOT ((case when (abs(t1.f+case f-case when exists(select 1 from t1 where t1.c>13) then t1.e when t1.f>= -f then b else e end when 13 then t1.e else t1.c end)/abs(c)) in (select max(f)*max(f)*( -max( -17)) | min(t1.a) | cast(avg(13) AS integer)+count(*) from t1 union select ( -max(e)) from t1) then ( -d) when c not between f and ( -c) then 13 else b end between t1.a and e) and 19 not between 19 and c)}
+} {600}
+do_test randexpr-2.1212 {
+  db eval {SELECT case t1.a when case when 13+( -f-b)*c-t1.d-t1.c & c+d>=d*case when not ++c+t1.d<>+b- -a*t1.e then  -f else 17 end+t1.f then t1.e when 11<>19 then c else 11 end then e else f end FROM t1 WHERE NOT ((case when (abs(t1.f+case f-case when exists(select 1 from t1 where t1.c>13) then t1.e when t1.f>= -f then b else e end when 13 then t1.e else t1.c end)/abs(c)) in (select max(f)*max(f)*( -max( -17)) | min(t1.a) | cast(avg(13) AS integer)+count(*) from t1 union select ( -max(e)) from t1) then ( -d) when c not between f and ( -c) then 13 else b end between t1.a and e) and 19 not between 19 and c)}
+} {600}
+do_test randexpr-2.1213 {
+  db eval {SELECT case when 19=t1.e or (abs(t1.f)/abs(((select  -count(distinct f+~t1.e-t1.b-coalesce((select max(b*c) from t1 where 17<>b),b))+~cast(avg(d) AS integer) from t1)))) not between f and d then coalesce((select max( -a) from t1 where 13<=11 or t1.d>=f),t1.d) when 17 in (select 11 from t1 union select t1.a from t1) then t1.d else t1.c end | 19 FROM t1 WHERE (case t1.d when ~a then coalesce((select max((abs( -~+b)/abs(t1.c))) from t1 where case t1.e when (abs((abs(case t1.a++t1.d | 19-coalesce((select e from t1 where b not between t1.f+b+c and t1.b), -t1.f) when t1.e then t1.a else f end)/abs(t1.b)))/abs(t1.e)) then t1.d else t1.d end>t1.f),t1.d)*t1.b else t1.f end not between a and e)}
+} {403}
+do_test randexpr-2.1214 {
+  db eval {SELECT case when 19=t1.e or (abs(t1.f)/abs(((select  -count(distinct f+~t1.e-t1.b-coalesce((select max(b*c) from t1 where 17<>b),b))+~cast(avg(d) AS integer) from t1)))) not between f and d then coalesce((select max( -a) from t1 where 13<=11 or t1.d>=f),t1.d) when 17 in (select 11 from t1 union select t1.a from t1) then t1.d else t1.c end | 19 FROM t1 WHERE NOT ((case t1.d when ~a then coalesce((select max((abs( -~+b)/abs(t1.c))) from t1 where case t1.e when (abs((abs(case t1.a++t1.d | 19-coalesce((select e from t1 where b not between t1.f+b+c and t1.b), -t1.f) when t1.e then t1.a else f end)/abs(t1.b)))/abs(t1.e)) then t1.d else t1.d end>t1.f),t1.d)*t1.b else t1.f end not between a and e))}
+} {}
+do_test randexpr-2.1215 {
+  db eval {SELECT case when 19=t1.e or (abs(t1.f)/abs(((select  -count(distinct f+~t1.e-t1.b-coalesce((select max(b*c) from t1 where 17<>b),b))+~cast(avg(d) AS integer) from t1)))) not between f and d then coalesce((select max( -a) from t1 where 13<=11 or t1.d>=f),t1.d) when 17 in (select 11 from t1 union select t1.a from t1) then t1.d else t1.c end & 19 FROM t1 WHERE (case t1.d when ~a then coalesce((select max((abs( -~+b)/abs(t1.c))) from t1 where case t1.e when (abs((abs(case t1.a++t1.d | 19-coalesce((select e from t1 where b not between t1.f+b+c and t1.b), -t1.f) when t1.e then t1.a else f end)/abs(t1.b)))/abs(t1.e)) then t1.d else t1.d end>t1.f),t1.d)*t1.b else t1.f end not between a and e)}
+} {16}
+do_test randexpr-2.1216 {
+  db eval {SELECT coalesce((select t1.c from t1 where  -a in (select e from t1 union select 13 from t1)),(select count(distinct coalesce((select max((17)) from t1 where c not between case 19-t1.b when a then ~+(abs((select count(distinct (t1.a)) from t1)+(t1.b))/abs((t1.a)*a+13 | t1.d | t1.a)) else a end and 13 or d in (a,a,t1.f)),d)) from t1) | t1.d) FROM t1 WHERE e<d or case case when  -t1.a between coalesce((select coalesce((select d from t1 where (t1.f=~coalesce((select max(t1.d) from t1 where t1.d<=t1.e),f)*19)),17) from t1 where (t1.f in ( -11,t1.f,a)) or 19<=13),t1.b) and c then t1.f when t1.d=f then t1.f else f end when t1.d then 11 else 17 end*t1.e not in (t1.a,t1.f,e)}
+} {401}
+do_test randexpr-2.1217 {
+  db eval {SELECT coalesce((select t1.c from t1 where  -a in (select e from t1 union select 13 from t1)),(select count(distinct coalesce((select max((17)) from t1 where c not between case 19-t1.b when a then ~+(abs((select count(distinct (t1.a)) from t1)+(t1.b))/abs((t1.a)*a+13 | t1.d | t1.a)) else a end and 13 or d in (a,a,t1.f)),d)) from t1) | t1.d) FROM t1 WHERE NOT (e<d or case case when  -t1.a between coalesce((select coalesce((select d from t1 where (t1.f=~coalesce((select max(t1.d) from t1 where t1.d<=t1.e),f)*19)),17) from t1 where (t1.f in ( -11,t1.f,a)) or 19<=13),t1.b) and c then t1.f when t1.d=f then t1.f else f end when t1.d then 11 else 17 end*t1.e not in (t1.a,t1.f,e))}
+} {}
+do_test randexpr-2.1218 {
+  db eval {SELECT coalesce((select t1.c from t1 where  -a in (select e from t1 union select 13 from t1)),(select count(distinct coalesce((select max((17)) from t1 where c not between case 19-t1.b when a then ~+(abs((select count(distinct (t1.a)) from t1)+(t1.b))/abs((t1.a)*a+13 & t1.d & t1.a)) else a end and 13 or d in (a,a,t1.f)),d)) from t1) & t1.d) FROM t1 WHERE e<d or case case when  -t1.a between coalesce((select coalesce((select d from t1 where (t1.f=~coalesce((select max(t1.d) from t1 where t1.d<=t1.e),f)*19)),17) from t1 where (t1.f in ( -11,t1.f,a)) or 19<=13),t1.b) and c then t1.f when t1.d=f then t1.f else f end when t1.d then 11 else 17 end*t1.e not in (t1.a,t1.f,e)}
+} {0}
+do_test randexpr-2.1219 {
+  db eval {SELECT case when case when t1.b<=f+coalesce((select max(11) from t1 where not e in (select count(distinct f) from t1 union select count(*) from t1)),t1.d) or 19 between (e) and 19 and f not in (t1.d,(19),t1.e) and exists(select 1 from t1 where t1.e<=19) or t1.e>t1.a then (select +abs(count(distinct t1.f)*max(13)) from t1) else +d end>=b+t1.c and b not in (f,13,b) then t1.d when b>b then d else t1.d end*11 FROM t1 WHERE d<>b}
+} {4400}
+do_test randexpr-2.1220 {
+  db eval {SELECT case when case when t1.b<=f+coalesce((select max(11) from t1 where not e in (select count(distinct f) from t1 union select count(*) from t1)),t1.d) or 19 between (e) and 19 and f not in (t1.d,(19),t1.e) and exists(select 1 from t1 where t1.e<=19) or t1.e>t1.a then (select +abs(count(distinct t1.f)*max(13)) from t1) else +d end>=b+t1.c and b not in (f,13,b) then t1.d when b>b then d else t1.d end*11 FROM t1 WHERE NOT (d<>b)}
+} {}
+do_test randexpr-2.1221 {
+  db eval {SELECT ~(abs(case when t1.a not between  -t1.d*(b) and 17 then f when e<=t1.f then b*t1.d else 13*(a) end)/abs((coalesce((select d from t1 where +(abs((select (min(a)) from t1))/abs((select count(distinct a) from t1)))- -t1.a in (select  -case max(e)+count(distinct d) when cast(avg(( -t1.e)) AS integer) then ( -(count(*))) else  -min(d) end+max(t1.f) from t1 union select max(t1.a) from t1)),t1.d)))) FROM t1 WHERE (t1.a<t1.a)}
+} {}
+do_test randexpr-2.1222 {
+  db eval {SELECT ~(abs(case when t1.a not between  -t1.d*(b) and 17 then f when e<=t1.f then b*t1.d else 13*(a) end)/abs((coalesce((select d from t1 where +(abs((select (min(a)) from t1))/abs((select count(distinct a) from t1)))- -t1.a in (select  -case max(e)+count(distinct d) when cast(avg(( -t1.e)) AS integer) then ( -(count(*))) else  -min(d) end+max(t1.f) from t1 union select max(t1.a) from t1)),t1.d)))) FROM t1 WHERE NOT ((t1.a<t1.a))}
+} {-2}
+do_test randexpr-2.1223 {
+  db eval {SELECT f+case when (~t1.c between case when +d between (select  -abs(count(distinct t1.a+17+t1.f))+case min(19)*count(distinct  -t1.a) when (count(*)) then ((count(*))) else ((max(t1.e))) end from t1) and case when  -t1.b>=13 then 11 else a end then  -17 else a end and (t1.c) and (b=17)) then (+(t1.c)) when t1.a<=t1.f then t1.d else 11 end FROM t1 WHERE c<>~13}
+} {1000}
+do_test randexpr-2.1224 {
+  db eval {SELECT f+case when (~t1.c between case when +d between (select  -abs(count(distinct t1.a+17+t1.f))+case min(19)*count(distinct  -t1.a) when (count(*)) then ((count(*))) else ((max(t1.e))) end from t1) and case when  -t1.b>=13 then 11 else a end then  -17 else a end and (t1.c) and (b=17)) then (+(t1.c)) when t1.a<=t1.f then t1.d else 11 end FROM t1 WHERE NOT (c<>~13)}
+} {}
+do_test randexpr-2.1225 {
+  db eval {SELECT case when ~(abs((select count(*) from t1))/abs(c))<>case when 17*case when coalesce((select max(f) from t1 where exists(select 1 from t1 where t1.f=t1.e)),t1.a) in (select min(t1.f) from t1 union select  -min(t1.d) from t1) then 11 when 11<=(a) then f else  -e end |  -t1.b< -c then d else f end then ((t1.a)) when t1.f in (select ~(++(count(*))+cast(avg(t1.f) AS integer))+max(( -t1.d)) from t1 union select cast(avg(e) AS integer) from t1) then 11 else d end FROM t1 WHERE t1.a between case when t1.d=t1.a*11 | (select (cast(avg(t1.a) AS integer)+abs( -count(distinct e)) | ~count(distinct coalesce((select max(b) from t1 where not exists(select 1 from t1 where  -e>=13)),(t1.e)))- -( -max(d))* -count(*)) from t1)+(abs(t1.f)/abs((select cast(avg(11) AS integer) from t1))) then t1.a else coalesce((select max(c) from t1 where 11>=t1.e or 11 in (t1.b,t1.b,t1.d) or t1.a>=t1.a),13)*a end and t1.c}
+} {}
+do_test randexpr-2.1226 {
+  db eval {SELECT case when ~(abs((select count(*) from t1))/abs(c))<>case when 17*case when coalesce((select max(f) from t1 where exists(select 1 from t1 where t1.f=t1.e)),t1.a) in (select min(t1.f) from t1 union select  -min(t1.d) from t1) then 11 when 11<=(a) then f else  -e end |  -t1.b< -c then d else f end then ((t1.a)) when t1.f in (select ~(++(count(*))+cast(avg(t1.f) AS integer))+max(( -t1.d)) from t1 union select cast(avg(e) AS integer) from t1) then 11 else d end FROM t1 WHERE NOT (t1.a between case when t1.d=t1.a*11 | (select (cast(avg(t1.a) AS integer)+abs( -count(distinct e)) | ~count(distinct coalesce((select max(b) from t1 where not exists(select 1 from t1 where  -e>=13)),(t1.e)))- -( -max(d))* -count(*)) from t1)+(abs(t1.f)/abs((select cast(avg(11) AS integer) from t1))) then t1.a else coalesce((select max(c) from t1 where 11>=t1.e or 11 in (t1.b,t1.b,t1.d) or t1.a>=t1.a),13)*a end and t1.c)}
+} {100}
+do_test randexpr-2.1227 {
+  db eval {SELECT case when ~(abs((select count(*) from t1))/abs(c))<>case when 17*case when coalesce((select max(f) from t1 where exists(select 1 from t1 where t1.f=t1.e)),t1.a) in (select min(t1.f) from t1 union select  -min(t1.d) from t1) then 11 when 11<=(a) then f else  -e end &  -t1.b< -c then d else f end then ((t1.a)) when t1.f in (select ~(++(count(*))+cast(avg(t1.f) AS integer))+max(( -t1.d)) from t1 union select cast(avg(e) AS integer) from t1) then 11 else d end FROM t1 WHERE NOT (t1.a between case when t1.d=t1.a*11 | (select (cast(avg(t1.a) AS integer)+abs( -count(distinct e)) | ~count(distinct coalesce((select max(b) from t1 where not exists(select 1 from t1 where  -e>=13)),(t1.e)))- -( -max(d))* -count(*)) from t1)+(abs(t1.f)/abs((select cast(avg(11) AS integer) from t1))) then t1.a else coalesce((select max(c) from t1 where 11>=t1.e or 11 in (t1.b,t1.b,t1.d) or t1.a>=t1.a),13)*a end and t1.c)}
+} {100}
+do_test randexpr-2.1228 {
+  db eval {SELECT (coalesce((select 19 from t1 where  - -t1.d | t1.c+~(select max(11) |  -~count(*)+count(*)-cast(avg(case when t1.e in (select a from t1 union select f from t1) then c else 11 end) AS integer) from t1)*coalesce((select t1.b from t1 where ((abs(t1.b)/abs(coalesce((select (b)-f from t1 where t1.f not in ( -e, -t1.b, -t1.d) and t1.d>=a or 19 not in (a,13,t1.f)),b))))<t1.e),f)+b<t1.c),d)) FROM t1 WHERE t1.f | +19+f*t1.d+t1.b*d<case when (select min(t1.e) from t1) not in (t1.b,11, -b*case c when coalesce((select max(t1.b+b) from t1 where 19+13=t1.f),coalesce((select max(19*f) from t1 where t1.a=a),a)) then d else t1.f end) then t1.f when f=t1.c then a else 19 end}
+} {}
+do_test randexpr-2.1229 {
+  db eval {SELECT (coalesce((select 19 from t1 where  - -t1.d | t1.c+~(select max(11) |  -~count(*)+count(*)-cast(avg(case when t1.e in (select a from t1 union select f from t1) then c else 11 end) AS integer) from t1)*coalesce((select t1.b from t1 where ((abs(t1.b)/abs(coalesce((select (b)-f from t1 where t1.f not in ( -e, -t1.b, -t1.d) and t1.d>=a or 19 not in (a,13,t1.f)),b))))<t1.e),f)+b<t1.c),d)) FROM t1 WHERE NOT (t1.f | +19+f*t1.d+t1.b*d<case when (select min(t1.e) from t1) not in (t1.b,11, -b*case c when coalesce((select max(t1.b+b) from t1 where 19+13=t1.f),coalesce((select max(19*f) from t1 where t1.a=a),a)) then d else t1.f end) then t1.f when f=t1.c then a else 19 end)}
+} {400}
+do_test randexpr-2.1230 {
+  db eval {SELECT (coalesce((select 19 from t1 where  - -t1.d & t1.c+~(select max(11) &  -~count(*)+count(*)-cast(avg(case when t1.e in (select a from t1 union select f from t1) then c else 11 end) AS integer) from t1)*coalesce((select t1.b from t1 where ((abs(t1.b)/abs(coalesce((select (b)-f from t1 where t1.f not in ( -e, -t1.b, -t1.d) and t1.d>=a or 19 not in (a,13,t1.f)),b))))<t1.e),f)+b<t1.c),d)) FROM t1 WHERE NOT (t1.f | +19+f*t1.d+t1.b*d<case when (select min(t1.e) from t1) not in (t1.b,11, -b*case c when coalesce((select max(t1.b+b) from t1 where 19+13=t1.f),coalesce((select max(19*f) from t1 where t1.a=a),a)) then d else t1.f end) then t1.f when f=t1.c then a else 19 end)}
+} {19}
+do_test randexpr-2.1231 {
+  db eval {SELECT +case when t1.f<c then 19 when f<=case t1.c when c*d then case when (t1.d=17) and not (d-case when 11<19 then t1.b when t1.d in (t1.e, - -e,c) then a else t1.d end+b in (t1.a,19,11)) then case 19 when c then t1.d else t1.d end when d in (select a from t1 union select 11 from t1) then (t1.e) else 11 end else 19 end then c else 19 end FROM t1 WHERE exists(select 1 from t1 where 19 in (select ++min(t1.f)+case abs((count(distinct 11-t1.a-t1.f)-case ((min(13))) when count(distinct t1.f) then  - -cast(avg(t1.d) AS integer) else cast(avg(t1.d) AS integer) end | count(*)*max(b)- -min(b)))- -min((b)) | min(b) | count(*)*count(*) when count(*) then max(19) else max(19) end | cast(avg(t1.b) AS integer)+min(t1.d)* -max(t1.c) | ( -( -min(t1.e)))*min(d)- -min(d) from t1 union select ((min(b))) from t1))}
+} {}
+do_test randexpr-2.1232 {
+  db eval {SELECT +case when t1.f<c then 19 when f<=case t1.c when c*d then case when (t1.d=17) and not (d-case when 11<19 then t1.b when t1.d in (t1.e, - -e,c) then a else t1.d end+b in (t1.a,19,11)) then case 19 when c then t1.d else t1.d end when d in (select a from t1 union select 11 from t1) then (t1.e) else 11 end else 19 end then c else 19 end FROM t1 WHERE NOT (exists(select 1 from t1 where 19 in (select ++min(t1.f)+case abs((count(distinct 11-t1.a-t1.f)-case ((min(13))) when count(distinct t1.f) then  - -cast(avg(t1.d) AS integer) else cast(avg(t1.d) AS integer) end | count(*)*max(b)- -min(b)))- -min((b)) | min(b) | count(*)*count(*) when count(*) then max(19) else max(19) end | cast(avg(t1.b) AS integer)+min(t1.d)* -max(t1.c) | ( -( -min(t1.e)))*min(d)- -min(d) from t1 union select ((min(b))) from t1)))}
+} {19}
+do_test randexpr-2.1233 {
+  db eval {SELECT ~case when exists(select 1 from t1 where t1.c in (t1.a,e+t1.b+e-19 | coalesce((select max(t1.f | t1.a+11*a) from t1 where (abs((abs(f)/abs(d)))/abs(coalesce((select max(t1.a) from t1 where (13 between (f) and f and t1.e between e and t1.b)),t1.c)))<=(f)),e)+f+13, -t1.c)) then t1.b when t1.d<>t1.d then (17) else e end+t1.d-19 FROM t1 WHERE not  -t1.e+t1.c not between case when  -case case when exists(select 1 from t1 where 17 in (select min(19) from t1 union select  -min(19) from t1) and 13 not in (17,a,t1.e)) then case when f>=19 then (c) when t1.f>13 then 19 else 19 end | t1.a else e end when b then t1.c else b end in (select  -max(13) from t1 union select count(distinct 17) from t1) and 11 not in (11,t1.a,f) and t1.c=f then ~(abs(t1.e)/abs(t1.d)) when f<13 then 17 else 19 end*b and t1.e}
+} {}
+do_test randexpr-2.1234 {
+  db eval {SELECT ~case when exists(select 1 from t1 where t1.c in (t1.a,e+t1.b+e-19 | coalesce((select max(t1.f | t1.a+11*a) from t1 where (abs((abs(f)/abs(d)))/abs(coalesce((select max(t1.a) from t1 where (13 between (f) and f and t1.e between e and t1.b)),t1.c)))<=(f)),e)+f+13, -t1.c)) then t1.b when t1.d<>t1.d then (17) else e end+t1.d-19 FROM t1 WHERE NOT (not  -t1.e+t1.c not between case when  -case case when exists(select 1 from t1 where 17 in (select min(19) from t1 union select  -min(19) from t1) and 13 not in (17,a,t1.e)) then case when f>=19 then (c) when t1.f>13 then 19 else 19 end | t1.a else e end when b then t1.c else b end in (select  -max(13) from t1 union select count(distinct 17) from t1) and 11 not in (11,t1.a,f) and t1.c=f then ~(abs(t1.e)/abs(t1.d)) when f<13 then 17 else 19 end*b and t1.e)}
+} {-120}
+do_test randexpr-2.1235 {
+  db eval {SELECT ~case when exists(select 1 from t1 where t1.c in (t1.a,e+t1.b+e-19 & coalesce((select max(t1.f & t1.a+11*a) from t1 where (abs((abs(f)/abs(d)))/abs(coalesce((select max(t1.a) from t1 where (13 between (f) and f and t1.e between e and t1.b)),t1.c)))<=(f)),e)+f+13, -t1.c)) then t1.b when t1.d<>t1.d then (17) else e end+t1.d-19 FROM t1 WHERE NOT (not  -t1.e+t1.c not between case when  -case case when exists(select 1 from t1 where 17 in (select min(19) from t1 union select  -min(19) from t1) and 13 not in (17,a,t1.e)) then case when f>=19 then (c) when t1.f>13 then 19 else 19 end | t1.a else e end when b then t1.c else b end in (select  -max(13) from t1 union select count(distinct 17) from t1) and 11 not in (11,t1.a,f) and t1.c=f then ~(abs(t1.e)/abs(t1.d)) when f<13 then 17 else 19 end*b and t1.e)}
+} {-120}
+do_test randexpr-2.1236 {
+  db eval {SELECT ((select min(e+case when b not between coalesce((select t1.d | b from t1 where not exists(select 1 from t1 where 17>11)), -c) and (t1.a) or e<t1.b and (11)<>d then a when 19>11 then  -13 else t1.b end+13)+count(distinct d)+count(*)* -count(distinct t1.f)-((count(distinct t1.c)))+min(a) | max(c) from t1)*t1.e*19*11) FROM t1 WHERE b<>(select count(distinct f) from t1)}
+} {104918000}
+do_test randexpr-2.1237 {
+  db eval {SELECT ((select min(e+case when b not between coalesce((select t1.d | b from t1 where not exists(select 1 from t1 where 17>11)), -c) and (t1.a) or e<t1.b and (11)<>d then a when 19>11 then  -13 else t1.b end+13)+count(distinct d)+count(*)* -count(distinct t1.f)-((count(distinct t1.c)))+min(a) | max(c) from t1)*t1.e*19*11) FROM t1 WHERE NOT (b<>(select count(distinct f) from t1))}
+} {}
+do_test randexpr-2.1238 {
+  db eval {SELECT ((select min(e+case when b not between coalesce((select t1.d & b from t1 where not exists(select 1 from t1 where 17>11)), -c) and (t1.a) or e<t1.b and (11)<>d then a when 19>11 then  -13 else t1.b end+13)+count(distinct d)+count(*)* -count(distinct t1.f)-((count(distinct t1.c)))+min(a) & max(c) from t1)*t1.e*19*11) FROM t1 WHERE b<>(select count(distinct f) from t1)}
+} {836000}
+do_test randexpr-2.1239 {
+  db eval {SELECT coalesce((select max(t1.a) from t1 where +b-b+t1.e<>(case when (case when ((select case  -cast(avg(17) AS integer) when max(17) then count(*) else count(distinct t1.d) end from t1))-case 19 when 11 then e else t1.f end<=e then 19 when b not between t1.c and 13 then e else 17 end+t1.c in (select 19 from t1 union select a from t1)) then e-t1.c else t1.f end*t1.b)-e),a) FROM t1 WHERE coalesce((select 13 from t1 where t1.c<>t1.b | t1.e*19-e),f+t1.d) not in (13,(c)*a,e)}
+} {}
+do_test randexpr-2.1240 {
+  db eval {SELECT coalesce((select max(t1.a) from t1 where +b-b+t1.e<>(case when (case when ((select case  -cast(avg(17) AS integer) when max(17) then count(*) else count(distinct t1.d) end from t1))-case 19 when 11 then e else t1.f end<=e then 19 when b not between t1.c and 13 then e else 17 end+t1.c in (select 19 from t1 union select a from t1)) then e-t1.c else t1.f end*t1.b)-e),a) FROM t1 WHERE NOT (coalesce((select 13 from t1 where t1.c<>t1.b | t1.e*19-e),f+t1.d) not in (13,(c)*a,e))}
+} {100}
+do_test randexpr-2.1241 {
+  db eval {SELECT t1.d-case when (11) not between coalesce((select max(a) from t1 where f in (select cast(avg(t1.c+(select case case case max(a) when  -count(*) then min(b) else  - -(min((t1.a))) end when (max((19))) then max(t1.f) else count(*) end when max(t1.a) then  -min(t1.c) else count(*) end from t1)+c+t1.d) AS integer)-min(a) |  -cast(avg(f) AS integer)*(cast(avg(f) AS integer))-( -count(*)) from t1 union select min( -c) from t1)),t1.a) and  -c then (d) when t1.f<=((t1.c)) then  - -13 else c end FROM t1 WHERE 13-e>(abs(t1.f)/abs((t1.d)*d))}
+} {}
+do_test randexpr-2.1242 {
+  db eval {SELECT t1.d-case when (11) not between coalesce((select max(a) from t1 where f in (select cast(avg(t1.c+(select case case case max(a) when  -count(*) then min(b) else  - -(min((t1.a))) end when (max((19))) then max(t1.f) else count(*) end when max(t1.a) then  -min(t1.c) else count(*) end from t1)+c+t1.d) AS integer)-min(a) |  -cast(avg(f) AS integer)*(cast(avg(f) AS integer))-( -count(*)) from t1 union select min( -c) from t1)),t1.a) and  -c then (d) when t1.f<=((t1.c)) then  - -13 else c end FROM t1 WHERE NOT (13-e>(abs(t1.f)/abs((t1.d)*d)))}
+} {0}
+do_test randexpr-2.1243 {
+  db eval {SELECT t1.d-case when (11) not between coalesce((select max(a) from t1 where f in (select cast(avg(t1.c+(select case case case max(a) when  -count(*) then min(b) else  - -(min((t1.a))) end when (max((19))) then max(t1.f) else count(*) end when max(t1.a) then  -min(t1.c) else count(*) end from t1)+c+t1.d) AS integer)-min(a) &  -cast(avg(f) AS integer)*(cast(avg(f) AS integer))-( -count(*)) from t1 union select min( -c) from t1)),t1.a) and  -c then (d) when t1.f<=((t1.c)) then  - -13 else c end FROM t1 WHERE NOT (13-e>(abs(t1.f)/abs((t1.d)*d)))}
+} {0}
+do_test randexpr-2.1244 {
+  db eval {SELECT (abs(coalesce((select max(b) from t1 where not exists(select 1 from t1 where 19>(t1.c))),(11+(abs(c)/abs(19)))+b)+coalesce((select max(t1.c) from t1 where t1.a<=13),t1.d+t1.b+case when exists(select 1 from t1 where  -t1.b in (select min(t1.a-+13) from t1 union select max(t1.c) from t1)) then (select ++(cast(avg(11) AS integer)) | cast(avg(b) AS integer)*cast(avg(d) AS integer) from t1) when f>=b then 19 else 19 end))/abs(b)) FROM t1 WHERE not b in (select case when t1.e in (select +cast(avg(d) AS integer)-count(*)*count(*)-(case ~count(distinct d)*cast(avg(t1.b) AS integer) when count(distinct t1.e) then max(19) else cast(avg(t1.b) AS integer) end+(count(distinct t1.c))) from t1 union select  -min(t1.f) from t1) or 19<=+11 then ((select (min(t1.b)) from t1)*a-19+17*13) | a when (11 in (select d from t1 union select t1.e from t1)) then 19 else t1.b end from t1 union select t1.c from t1)}
+} {}
+do_test randexpr-2.1245 {
+  db eval {SELECT (abs(coalesce((select max(b) from t1 where not exists(select 1 from t1 where 19>(t1.c))),(11+(abs(c)/abs(19)))+b)+coalesce((select max(t1.c) from t1 where t1.a<=13),t1.d+t1.b+case when exists(select 1 from t1 where  -t1.b in (select min(t1.a-+13) from t1 union select max(t1.c) from t1)) then (select ++(cast(avg(11) AS integer)) | cast(avg(b) AS integer)*cast(avg(d) AS integer) from t1) when f>=b then 19 else 19 end))/abs(b)) FROM t1 WHERE NOT (not b in (select case when t1.e in (select +cast(avg(d) AS integer)-count(*)*count(*)-(case ~count(distinct d)*cast(avg(t1.b) AS integer) when count(distinct t1.e) then max(19) else cast(avg(t1.b) AS integer) end+(count(distinct t1.c))) from t1 union select  -min(t1.f) from t1) or 19<=+11 then ((select (min(t1.b)) from t1)*a-19+17*13) | a when (11 in (select d from t1 union select t1.e from t1)) then 19 else t1.b end from t1 union select t1.c from t1))}
+} {4}
+do_test randexpr-2.1246 {
+  db eval {SELECT (abs(coalesce((select max(b) from t1 where not exists(select 1 from t1 where 19>(t1.c))),(11+(abs(c)/abs(19)))+b)+coalesce((select max(t1.c) from t1 where t1.a<=13),t1.d+t1.b+case when exists(select 1 from t1 where  -t1.b in (select min(t1.a-+13) from t1 union select max(t1.c) from t1)) then (select ++(cast(avg(11) AS integer)) & cast(avg(b) AS integer)*cast(avg(d) AS integer) from t1) when f>=b then 19 else 19 end))/abs(b)) FROM t1 WHERE NOT (not b in (select case when t1.e in (select +cast(avg(d) AS integer)-count(*)*count(*)-(case ~count(distinct d)*cast(avg(t1.b) AS integer) when count(distinct t1.e) then max(19) else cast(avg(t1.b) AS integer) end+(count(distinct t1.c))) from t1 union select  -min(t1.f) from t1) or 19<=+11 then ((select (min(t1.b)) from t1)*a-19+17*13) | a when (11 in (select d from t1 union select t1.e from t1)) then 19 else t1.b end from t1 union select t1.c from t1))}
+} {4}
+do_test randexpr-2.1247 {
+  db eval {SELECT +case ~t1.d when case when b*f in (select b from t1 union select 17 from t1) and ((case when t1.f | e in (select ~abs(~(case cast(avg(t1.f) AS integer) when min(b) then min(t1.d) else  - -count(distinct e) end | count(*)*( -cast(avg(t1.b) AS integer)))) from t1 union select (count(distinct t1.b)) from t1) then t1.f else t1.f*17+a end-13+e<>t1.c)) then d else t1.c end then t1.f else t1.e end+19 FROM t1 WHERE b>=+t1.e or f<=t1.b and  -c*17-t1.d*19 not in (c+coalesce((select (abs(~+d*t1.f)/abs(11)) from t1 where +case when t1.d+ -t1.e in (select max(t1.d)*count(distinct b) from t1 union select count(distinct 11) from t1) then (17) when (t1.e>t1.a) then e else e end not in (e,f,t1.a)),t1.f),t1.a,b)}
+} {}
+do_test randexpr-2.1248 {
+  db eval {SELECT +case ~t1.d when case when b*f in (select b from t1 union select 17 from t1) and ((case when t1.f | e in (select ~abs(~(case cast(avg(t1.f) AS integer) when min(b) then min(t1.d) else  - -count(distinct e) end | count(*)*( -cast(avg(t1.b) AS integer)))) from t1 union select (count(distinct t1.b)) from t1) then t1.f else t1.f*17+a end-13+e<>t1.c)) then d else t1.c end then t1.f else t1.e end+19 FROM t1 WHERE NOT (b>=+t1.e or f<=t1.b and  -c*17-t1.d*19 not in (c+coalesce((select (abs(~+d*t1.f)/abs(11)) from t1 where +case when t1.d+ -t1.e in (select max(t1.d)*count(distinct b) from t1 union select count(distinct 11) from t1) then (17) when (t1.e>t1.a) then e else e end not in (e,f,t1.a)),t1.f),t1.a,b))}
+} {519}
+do_test randexpr-2.1249 {
+  db eval {SELECT +case ~t1.d when case when b*f in (select b from t1 union select 17 from t1) and ((case when t1.f & e in (select ~abs(~(case cast(avg(t1.f) AS integer) when min(b) then min(t1.d) else  - -count(distinct e) end & count(*)*( -cast(avg(t1.b) AS integer)))) from t1 union select (count(distinct t1.b)) from t1) then t1.f else t1.f*17+a end-13+e<>t1.c)) then d else t1.c end then t1.f else t1.e end+19 FROM t1 WHERE NOT (b>=+t1.e or f<=t1.b and  -c*17-t1.d*19 not in (c+coalesce((select (abs(~+d*t1.f)/abs(11)) from t1 where +case when t1.d+ -t1.e in (select max(t1.d)*count(distinct b) from t1 union select count(distinct 11) from t1) then (17) when (t1.e>t1.a) then e else e end not in (e,f,t1.a)),t1.f),t1.a,b))}
+} {519}
+do_test randexpr-2.1250 {
+  db eval {SELECT (abs((abs(t1.a)/abs(~17 | coalesce((select ~coalesce((select (d) from t1 where t1.b>=t1.a),case when t1.e-(select ~max( -19*c | e+t1.c) from t1) not between (abs(c)/abs(e)) and t1.e then a else 17 end*17)+13 from t1 where a in (select max(t1.f) from t1 union select ~count(distinct b) from t1)),b) | 13)))/abs(e)) FROM t1 WHERE exists(select 1 from t1 where t1.a+t1.d-11<=t1.e)}
+} {0}
+do_test randexpr-2.1251 {
+  db eval {SELECT (abs((abs(t1.a)/abs(~17 | coalesce((select ~coalesce((select (d) from t1 where t1.b>=t1.a),case when t1.e-(select ~max( -19*c | e+t1.c) from t1) not between (abs(c)/abs(e)) and t1.e then a else 17 end*17)+13 from t1 where a in (select max(t1.f) from t1 union select ~count(distinct b) from t1)),b) | 13)))/abs(e)) FROM t1 WHERE NOT (exists(select 1 from t1 where t1.a+t1.d-11<=t1.e))}
+} {}
+do_test randexpr-2.1252 {
+  db eval {SELECT (abs((abs(t1.a)/abs(~17 & coalesce((select ~coalesce((select (d) from t1 where t1.b>=t1.a),case when t1.e-(select ~max( -19*c & e+t1.c) from t1) not between (abs(c)/abs(e)) and t1.e then a else 17 end*17)+13 from t1 where a in (select max(t1.f) from t1 union select ~count(distinct b) from t1)),b) & 13)))/abs(e)) FROM t1 WHERE exists(select 1 from t1 where t1.a+t1.d-11<=t1.e)}
+} {0}
+do_test randexpr-2.1253 {
+  db eval {SELECT coalesce((select max(d) from t1 where not exists(select 1 from t1 where t1.e not in (13,e,coalesce((select f from t1 where (abs(case  -t1.e when ~f then (t1.c)*13-t1.b+a-d+ -t1.a else a end)/abs(11))*19*t1.d>=a),(t1.b)))) or d not in (f,e,19)),coalesce((select max(17) from t1 where e in (select t1.e from t1 union select 17 from t1)),t1.c)) | t1.f FROM t1 WHERE t1.e not in (13,(select +count(*)+abs(cast(avg(case t1.d when 17 then  -t1.e+13 else (abs( -c)/abs(case when t1.e*+coalesce((select max(13) from t1 where a>t1.b),t1.f)>=(13) then  -f else t1.a end)) end) AS integer)) from t1)*(13),(select ((max(t1.d))) from t1)) and not exists(select 1 from t1 where e+b not in (b,t1.c,t1.e))}
+} {}
+do_test randexpr-2.1254 {
+  db eval {SELECT coalesce((select max(d) from t1 where not exists(select 1 from t1 where t1.e not in (13,e,coalesce((select f from t1 where (abs(case  -t1.e when ~f then (t1.c)*13-t1.b+a-d+ -t1.a else a end)/abs(11))*19*t1.d>=a),(t1.b)))) or d not in (f,e,19)),coalesce((select max(17) from t1 where e in (select t1.e from t1 union select 17 from t1)),t1.c)) | t1.f FROM t1 WHERE NOT (t1.e not in (13,(select +count(*)+abs(cast(avg(case t1.d when 17 then  -t1.e+13 else (abs( -c)/abs(case when t1.e*+coalesce((select max(13) from t1 where a>t1.b),t1.f)>=(13) then  -f else t1.a end)) end) AS integer)) from t1)*(13),(select ((max(t1.d))) from t1)) and not exists(select 1 from t1 where e+b not in (b,t1.c,t1.e)))}
+} {984}
+do_test randexpr-2.1255 {
+  db eval {SELECT coalesce((select max(d) from t1 where not exists(select 1 from t1 where t1.e not in (13,e,coalesce((select f from t1 where (abs(case  -t1.e when ~f then (t1.c)*13-t1.b+a-d+ -t1.a else a end)/abs(11))*19*t1.d>=a),(t1.b)))) or d not in (f,e,19)),coalesce((select max(17) from t1 where e in (select t1.e from t1 union select 17 from t1)),t1.c)) & t1.f FROM t1 WHERE NOT (t1.e not in (13,(select +count(*)+abs(cast(avg(case t1.d when 17 then  -t1.e+13 else (abs( -c)/abs(case when t1.e*+coalesce((select max(13) from t1 where a>t1.b),t1.f)>=(13) then  -f else t1.a end)) end) AS integer)) from t1)*(13),(select ((max(t1.d))) from t1)) and not exists(select 1 from t1 where e+b not in (b,t1.c,t1.e)))}
+} {16}
+do_test randexpr-2.1256 {
+  db eval {SELECT (abs(case when (t1.d*coalesce((select max(case coalesce((select max(e) from t1 where t1.a not in (coalesce((select (select count(distinct t1.e) from t1) from t1 where c>=t1.c),f),19,a)),t1.a) when t1.c then t1.a else b end-a) from t1 where c>t1.d),b)<= -11) then t1.a when not exists(select 1 from t1 where not (t1.d=e) or t1.f between t1.a and  -e and (t1.c)=f and a not in (t1.c,a,c)) then t1.a else t1.a end)/abs( -13))+e-d FROM t1 WHERE 17 not in (13,19,t1.c)}
+} {107}
+do_test randexpr-2.1257 {
+  db eval {SELECT (abs(case when (t1.d*coalesce((select max(case coalesce((select max(e) from t1 where t1.a not in (coalesce((select (select count(distinct t1.e) from t1) from t1 where c>=t1.c),f),19,a)),t1.a) when t1.c then t1.a else b end-a) from t1 where c>t1.d),b)<= -11) then t1.a when not exists(select 1 from t1 where not (t1.d=e) or t1.f between t1.a and  -e and (t1.c)=f and a not in (t1.c,a,c)) then t1.a else t1.a end)/abs( -13))+e-d FROM t1 WHERE NOT (17 not in (13,19,t1.c))}
+} {}
+do_test randexpr-2.1258 {
+  db eval {SELECT ~ -coalesce((select c from t1 where (case when b<= -e*t1.f then +coalesce((select case when (select count(*) from t1)=e then t1.f | c else f end from t1 where e>=(select ~case count(*) when  -abs(max(11)-count(distinct  -t1.d)) then count(distinct e) else max(f) end*count(*) from t1)),13) else 19 end>=t1.e)),case when t1.c<t1.a then t1.f else a end |  -a*d)-13-17 FROM t1 WHERE (abs(coalesce((select  -coalesce((select max((select +count(distinct a | t1.d)- -(((count(distinct d))))-max(t1.c) from t1)) from t1 where (( -case t1.b when 17 then 17 else 13 end<c))),t1.b) from t1 where d not in (t1.c,19,17) or t1.a in (select (max(b)) from t1 union select (cast(avg(b) AS integer)) from t1)),(t1.b))*19)/abs(e))<a or (not exists(select 1 from t1 where t1.f not in (a, -17,e))) and (t1.a) in (select cast(avg(e) AS integer) from t1 union select max(19) from t1)}
+} {-39995}
+do_test randexpr-2.1259 {
+  db eval {SELECT ~ -coalesce((select c from t1 where (case when b<= -e*t1.f then +coalesce((select case when (select count(*) from t1)=e then t1.f | c else f end from t1 where e>=(select ~case count(*) when  -abs(max(11)-count(distinct  -t1.d)) then count(distinct e) else max(f) end*count(*) from t1)),13) else 19 end>=t1.e)),case when t1.c<t1.a then t1.f else a end |  -a*d)-13-17 FROM t1 WHERE NOT ((abs(coalesce((select  -coalesce((select max((select +count(distinct a | t1.d)- -(((count(distinct d))))-max(t1.c) from t1)) from t1 where (( -case t1.b when 17 then 17 else 13 end<c))),t1.b) from t1 where d not in (t1.c,19,17) or t1.a in (select (max(b)) from t1 union select (cast(avg(b) AS integer)) from t1)),(t1.b))*19)/abs(e))<a or (not exists(select 1 from t1 where t1.f not in (a, -17,e))) and (t1.a) in (select cast(avg(e) AS integer) from t1 union select max(19) from t1))}
+} {}
+do_test randexpr-2.1260 {
+  db eval {SELECT ~ -coalesce((select c from t1 where (case when b<= -e*t1.f then +coalesce((select case when (select count(*) from t1)=e then t1.f & c else f end from t1 where e>=(select ~case count(*) when  -abs(max(11)-count(distinct  -t1.d)) then count(distinct e) else max(f) end*count(*) from t1)),13) else 19 end>=t1.e)),case when t1.c<t1.a then t1.f else a end &  -a*d)-13-17 FROM t1 WHERE (abs(coalesce((select  -coalesce((select max((select +count(distinct a | t1.d)- -(((count(distinct d))))-max(t1.c) from t1)) from t1 where (( -case t1.b when 17 then 17 else 13 end<c))),t1.b) from t1 where d not in (t1.c,19,17) or t1.a in (select (max(b)) from t1 union select (cast(avg(b) AS integer)) from t1)),(t1.b))*19)/abs(e))<a or (not exists(select 1 from t1 where t1.f not in (a, -17,e))) and (t1.a) in (select cast(avg(e) AS integer) from t1 union select max(19) from t1)}
+} {33}
+do_test randexpr-2.1261 {
+  db eval {SELECT case t1.b when coalesce((select t1.b from t1 where not exists(select 1 from t1 where +case ( -case f when 13 then (abs(t1.b+f)/abs(c)) else t1.d end) when f*t1.f+t1.d then e else coalesce((select coalesce((select max(b) from t1 where t1.a<=t1.a or t1.d+f<=19 or t1.b in (select (11) from t1 union select (19) from t1)),t1.d) from t1 where not exists(select 1 from t1 where 17=b)),c)+e end between t1.c and b)),d) then c else t1.d end FROM t1 WHERE b>t1.e | case when exists(select 1 from t1 where not ~+11<=coalesce((select max(a) from t1 where ~17*case when a=+(select cast(avg(t1.a*e) AS integer) from t1) then t1.e when c<11 then b else f end+c not between t1.e and  -17), -t1.c)) then e+c when not exists(select 1 from t1 where t1.c not between 13 and  -f) then 17 else  -t1.d end or (f)<=c}
+} {300}
+do_test randexpr-2.1262 {
+  db eval {SELECT case t1.b when coalesce((select t1.b from t1 where not exists(select 1 from t1 where +case ( -case f when 13 then (abs(t1.b+f)/abs(c)) else t1.d end) when f*t1.f+t1.d then e else coalesce((select coalesce((select max(b) from t1 where t1.a<=t1.a or t1.d+f<=19 or t1.b in (select (11) from t1 union select (19) from t1)),t1.d) from t1 where not exists(select 1 from t1 where 17=b)),c)+e end between t1.c and b)),d) then c else t1.d end FROM t1 WHERE NOT (b>t1.e | case when exists(select 1 from t1 where not ~+11<=coalesce((select max(a) from t1 where ~17*case when a=+(select cast(avg(t1.a*e) AS integer) from t1) then t1.e when c<11 then b else f end+c not between t1.e and  -17), -t1.c)) then e+c when not exists(select 1 from t1 where t1.c not between 13 and  -f) then 17 else  -t1.d end or (f)<=c)}
+} {}
+do_test randexpr-2.1263 {
+  db eval {SELECT case when case when case when exists(select 1 from t1 where exists(select 1 from t1 where t1.a+t1.a | case when t1.b between f and 19 and t1.c<a then t1.e else t1.d end<e)) then a else coalesce((select 11 from t1 where c in (select  -(abs(count(*)) | cast(avg(t1.b) AS integer))+( -min(17))+ -(count(distinct t1.e)) from t1 union select max((t1.a)) from t1)),a) end-t1.d=13 then t1.a else e end*t1.e*t1.c>=t1.e then t1.e else 19 end | a FROM t1 WHERE t1.b not in ((a),t1.d,b)}
+} {}
+do_test randexpr-2.1264 {
+  db eval {SELECT case when case when case when exists(select 1 from t1 where exists(select 1 from t1 where t1.a+t1.a | case when t1.b between f and 19 and t1.c<a then t1.e else t1.d end<e)) then a else coalesce((select 11 from t1 where c in (select  -(abs(count(*)) | cast(avg(t1.b) AS integer))+( -min(17))+ -(count(distinct t1.e)) from t1 union select max((t1.a)) from t1)),a) end-t1.d=13 then t1.a else e end*t1.e*t1.c>=t1.e then t1.e else 19 end | a FROM t1 WHERE NOT (t1.b not in ((a),t1.d,b))}
+} {500}
+do_test randexpr-2.1265 {
+  db eval {SELECT case when case when case when exists(select 1 from t1 where exists(select 1 from t1 where t1.a+t1.a & case when t1.b between f and 19 and t1.c<a then t1.e else t1.d end<e)) then a else coalesce((select 11 from t1 where c in (select  -(abs(count(*)) & cast(avg(t1.b) AS integer))+( -min(17))+ -(count(distinct t1.e)) from t1 union select max((t1.a)) from t1)),a) end-t1.d=13 then t1.a else e end*t1.e*t1.c>=t1.e then t1.e else 19 end & a FROM t1 WHERE NOT (t1.b not in ((a),t1.d,b))}
+} {100}
+do_test randexpr-2.1266 {
+  db eval {SELECT case when exists(select 1 from t1 where a between 13+t1.e and t1.e and (abs((abs(case when not 19 between t1.e and b and not exists(select 1 from t1 where (abs(17)/abs(f-c)) not between (d) and t1.e) then t1.e else 19 end)/abs(11)))/abs(19))=f) or t1.e<= -a then t1.b when exists(select 1 from t1 where t1.d>t1.c) and t1.b<19 then a else 11 end*d FROM t1 WHERE exists(select 1 from t1 where t1.e<>(select count(distinct ((coalesce((select coalesce((select max( -coalesce((select max( -e) from t1 where ((abs(t1.a)/abs(d)) in (select ~~count(*) from t1 union select count(*) from t1) or a in (d,t1.f,d) and  -c in (b,e,t1.d))),t1.c)-19 | 11-t1.e) from t1 where exists(select 1 from t1 where a<=e) and f not in (17,t1.b,t1.c) or (t1.a)>=t1.d),e)-t1.c from t1 where b<t1.d or d<= -t1.c),t1.e)))) from t1))}
+} {4400}
+do_test randexpr-2.1267 {
+  db eval {SELECT case when exists(select 1 from t1 where a between 13+t1.e and t1.e and (abs((abs(case when not 19 between t1.e and b and not exists(select 1 from t1 where (abs(17)/abs(f-c)) not between (d) and t1.e) then t1.e else 19 end)/abs(11)))/abs(19))=f) or t1.e<= -a then t1.b when exists(select 1 from t1 where t1.d>t1.c) and t1.b<19 then a else 11 end*d FROM t1 WHERE NOT (exists(select 1 from t1 where t1.e<>(select count(distinct ((coalesce((select coalesce((select max( -coalesce((select max( -e) from t1 where ((abs(t1.a)/abs(d)) in (select ~~count(*) from t1 union select count(*) from t1) or a in (d,t1.f,d) and  -c in (b,e,t1.d))),t1.c)-19 | 11-t1.e) from t1 where exists(select 1 from t1 where a<=e) and f not in (17,t1.b,t1.c) or (t1.a)>=t1.d),e)-t1.c from t1 where b<t1.d or d<= -t1.c),t1.e)))) from t1)))}
+} {}
+do_test randexpr-2.1268 {
+  db eval {SELECT t1.c | 13-19-d+case when t1.d-t1.b+t1.f*t1.a-coalesce((select max(c-17-case when t1.e<c then t1.f when exists(select 1 from t1 where d between  -c and f) then t1.a else 17 end) from t1 where 11 in (select a from t1 union select 17 from t1)),c)*11-d in (select c from t1 union select t1.c from t1) then 17 when 11 between a and (a) then a else t1.a end FROM t1 WHERE t1.a<b}
+} {-18}
+do_test randexpr-2.1269 {
+  db eval {SELECT t1.c | 13-19-d+case when t1.d-t1.b+t1.f*t1.a-coalesce((select max(c-17-case when t1.e<c then t1.f when exists(select 1 from t1 where d between  -c and f) then t1.a else 17 end) from t1 where 11 in (select a from t1 union select 17 from t1)),c)*11-d in (select c from t1 union select t1.c from t1) then 17 when 11 between a and (a) then a else t1.a end FROM t1 WHERE NOT (t1.a<b)}
+} {}
+do_test randexpr-2.1270 {
+  db eval {SELECT t1.c & 13-19-d+case when t1.d-t1.b+t1.f*t1.a-coalesce((select max(c-17-case when t1.e<c then t1.f when exists(select 1 from t1 where d between  -c and f) then t1.a else 17 end) from t1 where 11 in (select a from t1 union select 17 from t1)),c)*11-d in (select c from t1 union select t1.c from t1) then 17 when 11 between a and (a) then a else t1.a end FROM t1 WHERE t1.a<b}
+} {12}
+do_test randexpr-2.1271 {
+  db eval {SELECT case when coalesce((select b from t1 where t1.d not in (t1.c,case when t1.d not in (d,coalesce((select (select count(distinct d) from t1)*e from t1 where not exists(select 1 from t1 where t1.d>=t1.f) or 11+t1.a between (select  -cast(avg( -t1.b | 19) AS integer)+case min(t1.d) when  -max(t1.e) then  -count(distinct 11) else  - -max((t1.c)) end from t1) and f),(e)),13) then t1.a else d end* -t1.f,13)),d)>=e then 17 else  -11 end FROM t1 WHERE t1.d*b<=+~t1.c-t1.d+d*~b | e}
+} {}
+do_test randexpr-2.1272 {
+  db eval {SELECT case when coalesce((select b from t1 where t1.d not in (t1.c,case when t1.d not in (d,coalesce((select (select count(distinct d) from t1)*e from t1 where not exists(select 1 from t1 where t1.d>=t1.f) or 11+t1.a between (select  -cast(avg( -t1.b | 19) AS integer)+case min(t1.d) when  -max(t1.e) then  -count(distinct 11) else  - -max((t1.c)) end from t1) and f),(e)),13) then t1.a else d end* -t1.f,13)),d)>=e then 17 else  -11 end FROM t1 WHERE NOT (t1.d*b<=+~t1.c-t1.d+d*~b | e)}
+} {-11}
+do_test randexpr-2.1273 {
+  db eval {SELECT case when coalesce((select b from t1 where t1.d not in (t1.c,case when t1.d not in (d,coalesce((select (select count(distinct d) from t1)*e from t1 where not exists(select 1 from t1 where t1.d>=t1.f) or 11+t1.a between (select  -cast(avg( -t1.b & 19) AS integer)+case min(t1.d) when  -max(t1.e) then  -count(distinct 11) else  - -max((t1.c)) end from t1) and f),(e)),13) then t1.a else d end* -t1.f,13)),d)>=e then 17 else  -11 end FROM t1 WHERE NOT (t1.d*b<=+~t1.c-t1.d+d*~b | e)}
+} {-11}
+do_test randexpr-2.1274 {
+  db eval {SELECT t1.a*a+11-case when exists(select 1 from t1 where (t1.d)<d and (b=case when t1.d+(t1.c*c)*t1.b=t1.f then t1.e else  -11 end)) or not exists(select 1 from t1 where t1.d between 13 and  -19 and d<>b) and (19 not in ((t1.a),11,a)) then ~t1.b when t1.c<c then ~c else a end FROM t1 WHERE a+d> -coalesce((select (select max(e) | min(coalesce((select coalesce((select t1.d from t1 where a<a),11)+c from t1 where (b<e)),19)+t1.c)*abs(count(*))*case count(*) when  -min(a) then min(t1.c) else max( -19) end* -count(*) from t1) from t1 where (abs((abs(e)/abs(t1.e)))/abs(t1.e)) between a and b),((t1.a)))-17 and t1.e not between 13 and 17}
+} {10212}
+do_test randexpr-2.1275 {
+  db eval {SELECT t1.a*a+11-case when exists(select 1 from t1 where (t1.d)<d and (b=case when t1.d+(t1.c*c)*t1.b=t1.f then t1.e else  -11 end)) or not exists(select 1 from t1 where t1.d between 13 and  -19 and d<>b) and (19 not in ((t1.a),11,a)) then ~t1.b when t1.c<c then ~c else a end FROM t1 WHERE NOT (a+d> -coalesce((select (select max(e) | min(coalesce((select coalesce((select t1.d from t1 where a<a),11)+c from t1 where (b<e)),19)+t1.c)*abs(count(*))*case count(*) when  -min(a) then min(t1.c) else max( -19) end* -count(*) from t1) from t1 where (abs((abs(e)/abs(t1.e)))/abs(t1.e)) between a and b),((t1.a)))-17 and t1.e not between 13 and 17)}
+} {}
+do_test randexpr-2.1276 {
+  db eval {SELECT case when case when case (abs(t1.b)/abs(t1.a)) when e then f else t1.a end>c then 19 else b end- -11 in (select case case count(distinct t1.f) | (max(17)) when (count(*)) then count(distinct b) else count(distinct 19) end when min(t1.f) then (count(distinct t1.f)) else count(*) end-min(13) from t1 union select cast(avg( -t1.c) AS integer) from t1) or f<>t1.a then coalesce((select max(t1.b) from t1 where exists(select 1 from t1 where t1.e>=t1.e)), -t1.a) when exists(select 1 from t1 where 17 between t1.f and t1.d) then t1.c else c end FROM t1 WHERE t1.b=t1.b}
+} {200}
+do_test randexpr-2.1277 {
+  db eval {SELECT case when case when case (abs(t1.b)/abs(t1.a)) when e then f else t1.a end>c then 19 else b end- -11 in (select case case count(distinct t1.f) | (max(17)) when (count(*)) then count(distinct b) else count(distinct 19) end when min(t1.f) then (count(distinct t1.f)) else count(*) end-min(13) from t1 union select cast(avg( -t1.c) AS integer) from t1) or f<>t1.a then coalesce((select max(t1.b) from t1 where exists(select 1 from t1 where t1.e>=t1.e)), -t1.a) when exists(select 1 from t1 where 17 between t1.f and t1.d) then t1.c else c end FROM t1 WHERE NOT (t1.b=t1.b)}
+} {}
+do_test randexpr-2.1278 {
+  db eval {SELECT case when case when case (abs(t1.b)/abs(t1.a)) when e then f else t1.a end>c then 19 else b end- -11 in (select case case count(distinct t1.f) & (max(17)) when (count(*)) then count(distinct b) else count(distinct 19) end when min(t1.f) then (count(distinct t1.f)) else count(*) end-min(13) from t1 union select cast(avg( -t1.c) AS integer) from t1) or f<>t1.a then coalesce((select max(t1.b) from t1 where exists(select 1 from t1 where t1.e>=t1.e)), -t1.a) when exists(select 1 from t1 where 17 between t1.f and t1.d) then t1.c else c end FROM t1 WHERE t1.b=t1.b}
+} {200}
+do_test randexpr-2.1279 {
+  db eval {SELECT (abs(b)/abs(case 19 when case e+13*~t1.c*11 when case when (select ~min(t1.a) from t1)>t1.c then (case when 11 between (a) and (19) then d else d+t1.c end) else f end then (abs((e+t1.d)*e*19-t1.d)/abs(c)) else t1.b end then 11 else ( -t1.b) end*13)) FROM t1 WHERE case when ((select min( -case when b in (d-t1.e,case when e in (select d from t1 union select 17 from t1) then 11 else c end,( -t1.d)) then t1.b when b>e then c else  -t1.f end)+ -((min(t1.f)))-+min(f) | ( -(cast(avg(a) AS integer))) from t1)) in (select 11 from t1 union select 19 from t1) then 19 when not exists(select 1 from t1 where  -17>t1.f and t1.e in (select t1.e from t1 union select d from t1)) then 11 else d end=t1.d}
+} {}
+do_test randexpr-2.1280 {
+  db eval {SELECT (abs(b)/abs(case 19 when case e+13*~t1.c*11 when case when (select ~min(t1.a) from t1)>t1.c then (case when 11 between (a) and (19) then d else d+t1.c end) else f end then (abs((e+t1.d)*e*19-t1.d)/abs(c)) else t1.b end then 11 else ( -t1.b) end*13)) FROM t1 WHERE NOT (case when ((select min( -case when b in (d-t1.e,case when e in (select d from t1 union select 17 from t1) then 11 else c end,( -t1.d)) then t1.b when b>e then c else  -t1.f end)+ -((min(t1.f)))-+min(f) | ( -(cast(avg(a) AS integer))) from t1)) in (select 11 from t1 union select 19 from t1) then 19 when not exists(select 1 from t1 where  -17>t1.f and t1.e in (select t1.e from t1 union select d from t1)) then 11 else d end=t1.d)}
+} {0}
+do_test randexpr-2.1281 {
+  db eval {SELECT coalesce((select max(11) from t1 where not not exists(select 1 from t1 where ((abs(b)/abs(t1.f))-19+f-case ~11 when 19 then c else t1.a end)> -c+t1.a)),(11))- -b FROM t1 WHERE b*case when 19 not in (t1.e,a*+t1.d,(abs(+c)/abs(case 11 when b then +case when (not exists(select 1 from t1 where d<=c or c<t1.d or f<=b)) then e*19 | d+f else (t1.d) end | t1.d else b end))) then t1.b when not exists(select 1 from t1 where  -t1.e between 11 and e) then a else 17 end*t1.f between  -c and  -t1.d}
+} {}
+do_test randexpr-2.1282 {
+  db eval {SELECT coalesce((select max(11) from t1 where not not exists(select 1 from t1 where ((abs(b)/abs(t1.f))-19+f-case ~11 when 19 then c else t1.a end)> -c+t1.a)),(11))- -b FROM t1 WHERE NOT (b*case when 19 not in (t1.e,a*+t1.d,(abs(+c)/abs(case 11 when b then +case when (not exists(select 1 from t1 where d<=c or c<t1.d or f<=b)) then e*19 | d+f else (t1.d) end | t1.d else b end))) then t1.b when not exists(select 1 from t1 where  -t1.e between 11 and e) then a else 17 end*t1.f between  -c and  -t1.d)}
+} {211}
+do_test randexpr-2.1283 {
+  db eval {SELECT case when ((select count(*) from t1) not between b+t1.f and  -(coalesce((select max(coalesce((select max((select count(*) from t1) |  -case when ~19-b between a and 17 and (t1.c) between (13) and d and t1.a<=a then f-19 when 19<t1.d then f else t1.d end) from t1 where  - -t1.d between t1.b and a),t1.c)) from t1 where 11<(11)),e)-t1.c)) then b+t1.f else (b) end+13 FROM t1 WHERE e in (case when 17+b-17*+11 | +case when ~b-17*t1.d in (13,19, -t1.b) or 13 between t1.a and d and 11 not in (t1.e,f, -b) then t1.d*17 else b end not in (17,17,t1.c) then t1.c when t1.d not in (f,e,b) then t1.d else 11 end,11,t1.a)}
+} {}
+do_test randexpr-2.1284 {
+  db eval {SELECT case when ((select count(*) from t1) not between b+t1.f and  -(coalesce((select max(coalesce((select max((select count(*) from t1) |  -case when ~19-b between a and 17 and (t1.c) between (13) and d and t1.a<=a then f-19 when 19<t1.d then f else t1.d end) from t1 where  - -t1.d between t1.b and a),t1.c)) from t1 where 11<(11)),e)-t1.c)) then b+t1.f else (b) end+13 FROM t1 WHERE NOT (e in (case when 17+b-17*+11 | +case when ~b-17*t1.d in (13,19, -t1.b) or 13 between t1.a and d and 11 not in (t1.e,f, -b) then t1.d*17 else b end not in (17,17,t1.c) then t1.c when t1.d not in (f,e,b) then t1.d else 11 end,11,t1.a))}
+} {813}
+do_test randexpr-2.1285 {
+  db eval {SELECT case when ((select count(*) from t1) not between b+t1.f and  -(coalesce((select max(coalesce((select max((select count(*) from t1) &  -case when ~19-b between a and 17 and (t1.c) between (13) and d and t1.a<=a then f-19 when 19<t1.d then f else t1.d end) from t1 where  - -t1.d between t1.b and a),t1.c)) from t1 where 11<(11)),e)-t1.c)) then b+t1.f else (b) end+13 FROM t1 WHERE NOT (e in (case when 17+b-17*+11 | +case when ~b-17*t1.d in (13,19, -t1.b) or 13 between t1.a and d and 11 not in (t1.e,f, -b) then t1.d*17 else b end not in (17,17,t1.c) then t1.c when t1.d not in (f,e,b) then t1.d else 11 end,11,t1.a))}
+} {813}
+do_test randexpr-2.1286 {
+  db eval {SELECT case coalesce((select t1.e from t1 where 19 in (select 13 from t1 union select 11 | coalesce((select  -(t1.c) from t1 where t1.a<=t1.c),case when ~case when t1.e not between 11 and t1.e then d else 19 end+t1.a+f in (select  -(count(distinct  -c))-max(d)+count(distinct t1.d) from t1 union select cast(avg((b)) AS integer) from t1) then (t1.d) when not (t1.a not in ( -t1.e,t1.b,17) and 11<d) then e else b end) from t1)),11) when t1.c then a else a end-t1.b FROM t1 WHERE t1.d>=11*t1.d}
+} {}
+do_test randexpr-2.1287 {
+  db eval {SELECT case coalesce((select t1.e from t1 where 19 in (select 13 from t1 union select 11 | coalesce((select  -(t1.c) from t1 where t1.a<=t1.c),case when ~case when t1.e not between 11 and t1.e then d else 19 end+t1.a+f in (select  -(count(distinct  -c))-max(d)+count(distinct t1.d) from t1 union select cast(avg((b)) AS integer) from t1) then (t1.d) when not (t1.a not in ( -t1.e,t1.b,17) and 11<d) then e else b end) from t1)),11) when t1.c then a else a end-t1.b FROM t1 WHERE NOT (t1.d>=11*t1.d)}
+} {-100}
+do_test randexpr-2.1288 {
+  db eval {SELECT case coalesce((select t1.e from t1 where 19 in (select 13 from t1 union select 11 & coalesce((select  -(t1.c) from t1 where t1.a<=t1.c),case when ~case when t1.e not between 11 and t1.e then d else 19 end+t1.a+f in (select  -(count(distinct  -c))-max(d)+count(distinct t1.d) from t1 union select cast(avg((b)) AS integer) from t1) then (t1.d) when not (t1.a not in ( -t1.e,t1.b,17) and 11<d) then e else b end) from t1)),11) when t1.c then a else a end-t1.b FROM t1 WHERE NOT (t1.d>=11*t1.d)}
+} {-100}
+do_test randexpr-2.1289 {
+  db eval {SELECT (select min(coalesce((select max(case (b | case  -e when 11 then +(abs(17)/abs((19))) else 13 end) when t1.f then 17 else a end) from t1 where 17 not between e and  -a and 19=13 or t1.f=19 and t1.c<e and t1.c in (select cast(avg(19) AS integer)*min(c) from t1 union select +count(*) from t1)),t1.c)) from t1)*t1.e-t1.a FROM t1 WHERE (19)<>t1.b}
+} {149900}
+do_test randexpr-2.1290 {
+  db eval {SELECT (select min(coalesce((select max(case (b | case  -e when 11 then +(abs(17)/abs((19))) else 13 end) when t1.f then 17 else a end) from t1 where 17 not between e and  -a and 19=13 or t1.f=19 and t1.c<e and t1.c in (select cast(avg(19) AS integer)*min(c) from t1 union select +count(*) from t1)),t1.c)) from t1)*t1.e-t1.a FROM t1 WHERE NOT ((19)<>t1.b)}
+} {}
+do_test randexpr-2.1291 {
+  db eval {SELECT (select min(coalesce((select max(case (b & case  -e when 11 then +(abs(17)/abs((19))) else 13 end) when t1.f then 17 else a end) from t1 where 17 not between e and  -a and 19=13 or t1.f=19 and t1.c<e and t1.c in (select cast(avg(19) AS integer)*min(c) from t1 union select +count(*) from t1)),t1.c)) from t1)*t1.e-t1.a FROM t1 WHERE (19)<>t1.b}
+} {149900}
+do_test randexpr-2.1292 {
+  db eval {SELECT t1.f*b | coalesce((select max(t1.f) from t1 where (case when (select cast(avg((select (count(distinct e+t1.c)) from t1)) AS integer) from t1)=t1.d then case when not exists(select 1 from t1 where (b)+t1.e+t1.f in (select min(e) from t1 union select case count(distinct t1.c) when count(distinct f) then cast(avg((t1.f)) AS integer) else (cast(avg(13) AS integer)) end from t1)) and not exists(select 1 from t1 where (d=b)) then t1.d when 13 in (f,c,c) then case t1.c when 11 then  -a else t1.b end else 13 end else 19 end)<17),19)-t1.a FROM t1 WHERE c>=case when d<t1.e then t1.b when t1.f not between 11 and 17 then coalesce((select max( -~e | (17-c)) from t1 where not exists(select 1 from t1 where (( -13-b) in (select ++cast(avg(b) AS integer) from t1 union select case  -case ~max(e)-count(*) when (min(19)) then count(*) else max(t1.c) end |  -cast(avg(11) AS integer) when max(b) then (max(e)) else count(*) end | min(t1.d) from t1)))),t1.d) else t1.c end}
+} {-17}
+do_test randexpr-2.1293 {
+  db eval {SELECT t1.f*b | coalesce((select max(t1.f) from t1 where (case when (select cast(avg((select (count(distinct e+t1.c)) from t1)) AS integer) from t1)=t1.d then case when not exists(select 1 from t1 where (b)+t1.e+t1.f in (select min(e) from t1 union select case count(distinct t1.c) when count(distinct f) then cast(avg((t1.f)) AS integer) else (cast(avg(13) AS integer)) end from t1)) and not exists(select 1 from t1 where (d=b)) then t1.d when 13 in (f,c,c) then case t1.c when 11 then  -a else t1.b end else 13 end else 19 end)<17),19)-t1.a FROM t1 WHERE NOT (c>=case when d<t1.e then t1.b when t1.f not between 11 and 17 then coalesce((select max( -~e | (17-c)) from t1 where not exists(select 1 from t1 where (( -13-b) in (select ++cast(avg(b) AS integer) from t1 union select case  -case ~max(e)-count(*) when (min(19)) then count(*) else max(t1.c) end |  -cast(avg(11) AS integer) when max(b) then (max(e)) else count(*) end | min(t1.d) from t1)))),t1.d) else t1.c end)}
+} {}
+do_test randexpr-2.1294 {
+  db eval {SELECT t1.f*b & coalesce((select max(t1.f) from t1 where (case when (select cast(avg((select (count(distinct e+t1.c)) from t1)) AS integer) from t1)=t1.d then case when not exists(select 1 from t1 where (b)+t1.e+t1.f in (select min(e) from t1 union select case count(distinct t1.c) when count(distinct f) then cast(avg((t1.f)) AS integer) else (cast(avg(13) AS integer)) end from t1)) and not exists(select 1 from t1 where (d=b)) then t1.d when 13 in (f,c,c) then case t1.c when 11 then  -a else t1.b end else 13 end else 19 end)<17),19)-t1.a FROM t1 WHERE c>=case when d<t1.e then t1.b when t1.f not between 11 and 17 then coalesce((select max( -~e | (17-c)) from t1 where not exists(select 1 from t1 where (( -13-b) in (select ++cast(avg(b) AS integer) from t1 union select case  -case ~max(e)-count(*) when (min(19)) then count(*) else max(t1.c) end |  -cast(avg(11) AS integer) when max(b) then (max(e)) else count(*) end | min(t1.d) from t1)))),t1.d) else t1.c end}
+} {119936}
+do_test randexpr-2.1295 {
+  db eval {SELECT +case when b in (13,(t1.f),19+a) and not exists(select 1 from t1 where  -case when case when case (abs(coalesce((select b from t1 where t1.b>=t1.a),t1.e))/abs(13)) when t1.b then b else  -a end=11 then 13 else a end<>t1.f or 19 not in (b,(t1.b), -19) then b else e end<>e) then t1.f else c end | t1.a+d- -f+f FROM t1 WHERE a in (13+17,case when (t1.a>t1.e) then ~t1.c+d*case coalesce((select coalesce((select d from t1 where 11 not between t1.e and coalesce((select t1.b from t1 where  -coalesce((select max(t1.b) from t1 where t1.d in (a,11,d) and b=c),c) between b and d),(t1.e))),t1.f) from t1 where t1.e=a),t1.a) when 17 then (t1.f) else t1.d end+b+c when a>=t1.d then t1.a else f end,b)}
+} {}
+do_test randexpr-2.1296 {
+  db eval {SELECT +case when b in (13,(t1.f),19+a) and not exists(select 1 from t1 where  -case when case when case (abs(coalesce((select b from t1 where t1.b>=t1.a),t1.e))/abs(13)) when t1.b then b else  -a end=11 then 13 else a end<>t1.f or 19 not in (b,(t1.b), -19) then b else e end<>e) then t1.f else c end | t1.a+d- -f+f FROM t1 WHERE NOT (a in (13+17,case when (t1.a>t1.e) then ~t1.c+d*case coalesce((select coalesce((select d from t1 where 11 not between t1.e and coalesce((select t1.b from t1 where  -coalesce((select max(t1.b) from t1 where t1.d in (a,11,d) and b=c),c) between b and d),(t1.e))),t1.f) from t1 where t1.e=a),t1.a) when 17 then (t1.f) else t1.d end+b+c when a>=t1.d then t1.a else f end,b))}
+} {1964}
+do_test randexpr-2.1297 {
+  db eval {SELECT +case when b in (13,(t1.f),19+a) and not exists(select 1 from t1 where  -case when case when case (abs(coalesce((select b from t1 where t1.b>=t1.a),t1.e))/abs(13)) when t1.b then b else  -a end=11 then 13 else a end<>t1.f or 19 not in (b,(t1.b), -19) then b else e end<>e) then t1.f else c end & t1.a+d- -f+f FROM t1 WHERE NOT (a in (13+17,case when (t1.a>t1.e) then ~t1.c+d*case coalesce((select coalesce((select d from t1 where 11 not between t1.e and coalesce((select t1.b from t1 where  -coalesce((select max(t1.b) from t1 where t1.d in (a,11,d) and b=c),c) between b and d),(t1.e))),t1.f) from t1 where t1.e=a),t1.a) when 17 then (t1.f) else t1.d end+b+c when a>=t1.d then t1.a else f end,b))}
+} {36}
+do_test randexpr-2.1298 {
+  db eval {SELECT coalesce((select t1.b from t1 where 17+13+t1.b in (e,19,case when 17 in (select case max(b*17-d*t1.b*t1.d)+case max((19)) when ~ -max(t1.f) then +count(*) else cast(avg(13) AS integer) end when count(distinct 11) then min(e) else max(t1.c) end from t1 union select min(d) from t1) then t1.a* -(t1.a) when t1.c=19 then (t1.c) else t1.f end) and t1.f<=13),17) FROM t1 WHERE t1.e<>~t1.b}
+} {17}
+do_test randexpr-2.1299 {
+  db eval {SELECT coalesce((select t1.b from t1 where 17+13+t1.b in (e,19,case when 17 in (select case max(b*17-d*t1.b*t1.d)+case max((19)) when ~ -max(t1.f) then +count(*) else cast(avg(13) AS integer) end when count(distinct 11) then min(e) else max(t1.c) end from t1 union select min(d) from t1) then t1.a* -(t1.a) when t1.c=19 then (t1.c) else t1.f end) and t1.f<=13),17) FROM t1 WHERE NOT (t1.e<>~t1.b)}
+} {}
+do_test randexpr-2.1300 {
+  db eval {SELECT (abs(coalesce((select  -~(abs(t1.d)/abs(a)) from t1 where case when f in (select ~~(+abs( - -count(*)) | cast(avg(d) AS integer)) from t1 union select (min(f)) from t1) then (abs(t1.c)/abs( -13)) | f-13+d*17 when a in (t1.f,t1.c,11) then f else  -(f) end*c not in (13,d,d) and 19 in (t1.d,t1.d,b)),13))/abs(17)) FROM t1 WHERE exists(select 1 from t1 where t1.d<>case case when not exists(select 1 from t1 where t1.b<e and t1.c>(abs(c)/abs(t1.a))) then t1.b else 17 end when +~(e- -coalesce((select e from t1 where not (b) in (select max(t1.b) from t1 union select case max(t1.e)-max(17)-count(distinct (13)) when  -cast(avg( -t1.b) AS integer) then count(distinct d) else min(t1.f) end from t1)),c*d))*a*13 | f then (13) else c end)}
+} {0}
+do_test randexpr-2.1301 {
+  db eval {SELECT (abs(coalesce((select  -~(abs(t1.d)/abs(a)) from t1 where case when f in (select ~~(+abs( - -count(*)) | cast(avg(d) AS integer)) from t1 union select (min(f)) from t1) then (abs(t1.c)/abs( -13)) | f-13+d*17 when a in (t1.f,t1.c,11) then f else  -(f) end*c not in (13,d,d) and 19 in (t1.d,t1.d,b)),13))/abs(17)) FROM t1 WHERE NOT (exists(select 1 from t1 where t1.d<>case case when not exists(select 1 from t1 where t1.b<e and t1.c>(abs(c)/abs(t1.a))) then t1.b else 17 end when +~(e- -coalesce((select e from t1 where not (b) in (select max(t1.b) from t1 union select case max(t1.e)-max(17)-count(distinct (13)) when  -cast(avg( -t1.b) AS integer) then count(distinct d) else min(t1.f) end from t1)),c*d))*a*13 | f then (13) else c end))}
+} {}
+do_test randexpr-2.1302 {
+  db eval {SELECT (abs(coalesce((select  -~(abs(t1.d)/abs(a)) from t1 where case when f in (select ~~(+abs( - -count(*)) & cast(avg(d) AS integer)) from t1 union select (min(f)) from t1) then (abs(t1.c)/abs( -13)) & f-13+d*17 when a in (t1.f,t1.c,11) then f else  -(f) end*c not in (13,d,d) and 19 in (t1.d,t1.d,b)),13))/abs(17)) FROM t1 WHERE exists(select 1 from t1 where t1.d<>case case when not exists(select 1 from t1 where t1.b<e and t1.c>(abs(c)/abs(t1.a))) then t1.b else 17 end when +~(e- -coalesce((select e from t1 where not (b) in (select max(t1.b) from t1 union select case max(t1.e)-max(17)-count(distinct (13)) when  -cast(avg( -t1.b) AS integer) then count(distinct d) else min(t1.f) end from t1)),c*d))*a*13 | f then (13) else c end)}
+} {0}
+do_test randexpr-2.1303 {
+  db eval {SELECT t1.f*+case when ( -17-a*t1.f | case when (coalesce((select max((case a when +13*19* -b then a else 17 end)) from t1 where (t1.b) not between 13 and t1.a),e))-t1.b=t1.f then f else 17 end-b*a*d)<>11 then f else t1.c end-t1.c*e FROM t1 WHERE (select +cast(avg(case when 13*a in (select 11 from t1 union select b from t1) then e when t1.f in (select ~count(distinct f) | count(*) from t1 union select count(distinct 13*t1.a+coalesce((select max(e) from t1 where ~(abs(t1.e)/abs(a)) not in (t1.a+e-c,t1.e,case when t1.f>t1.c or f>t1.c then 13 when t1.c>c then t1.a else  -t1.d end)),f)*19) from t1) then d else d end) AS integer) from t1)=d}
+} {210000}
+do_test randexpr-2.1304 {
+  db eval {SELECT t1.f*+case when ( -17-a*t1.f | case when (coalesce((select max((case a when +13*19* -b then a else 17 end)) from t1 where (t1.b) not between 13 and t1.a),e))-t1.b=t1.f then f else 17 end-b*a*d)<>11 then f else t1.c end-t1.c*e FROM t1 WHERE NOT ((select +cast(avg(case when 13*a in (select 11 from t1 union select b from t1) then e when t1.f in (select ~count(distinct f) | count(*) from t1 union select count(distinct 13*t1.a+coalesce((select max(e) from t1 where ~(abs(t1.e)/abs(a)) not in (t1.a+e-c,t1.e,case when t1.f>t1.c or f>t1.c then 13 when t1.c>c then t1.a else  -t1.d end)),f)*19) from t1) then d else d end) AS integer) from t1)=d)}
+} {}
+do_test randexpr-2.1305 {
+  db eval {SELECT t1.f*+case when ( -17-a*t1.f & case when (coalesce((select max((case a when +13*19* -b then a else 17 end)) from t1 where (t1.b) not between 13 and t1.a),e))-t1.b=t1.f then f else 17 end-b*a*d)<>11 then f else t1.c end-t1.c*e FROM t1 WHERE (select +cast(avg(case when 13*a in (select 11 from t1 union select b from t1) then e when t1.f in (select ~count(distinct f) | count(*) from t1 union select count(distinct 13*t1.a+coalesce((select max(e) from t1 where ~(abs(t1.e)/abs(a)) not in (t1.a+e-c,t1.e,case when t1.f>t1.c or f>t1.c then 13 when t1.c>c then t1.a else  -t1.d end)),f)*19) from t1) then d else d end) AS integer) from t1)=d}
+} {210000}
+do_test randexpr-2.1306 {
+  db eval {SELECT t1.c+case when t1.a in (select max(coalesce((select coalesce((select coalesce((select max(19+case t1.f when a then e else t1.d end) from t1 where t1.d> -c),b) from t1 where (t1.c=e) and t1.f=17), -a) from t1 where (e not between e and 11)),t1.f)) | cast(avg(t1.a) AS integer)*max(t1.c) from t1 union select count(distinct c)-max(a) | min(t1.b) | (count(*))* -min(f) from t1) then t1.a when exists(select 1 from t1 where not exists(select 1 from t1 where  -17>11)) then (13) else 13 end FROM t1 WHERE 19=case when exists(select 1 from t1 where t1.f not between 11 and ~c+b-t1.c*case when t1.f<13+(t1.d) and  -t1.f<17 or (b<>b) then ~d else t1.b end) or exists(select 1 from t1 where not exists(select 1 from t1 where t1.e=19)) then c+f*17 else t1.a end and t1.e<13}
+} {}
+do_test randexpr-2.1307 {
+  db eval {SELECT t1.c+case when t1.a in (select max(coalesce((select coalesce((select coalesce((select max(19+case t1.f when a then e else t1.d end) from t1 where t1.d> -c),b) from t1 where (t1.c=e) and t1.f=17), -a) from t1 where (e not between e and 11)),t1.f)) | cast(avg(t1.a) AS integer)*max(t1.c) from t1 union select count(distinct c)-max(a) | min(t1.b) | (count(*))* -min(f) from t1) then t1.a when exists(select 1 from t1 where not exists(select 1 from t1 where  -17>11)) then (13) else 13 end FROM t1 WHERE NOT (19=case when exists(select 1 from t1 where t1.f not between 11 and ~c+b-t1.c*case when t1.f<13+(t1.d) and  -t1.f<17 or (b<>b) then ~d else t1.b end) or exists(select 1 from t1 where not exists(select 1 from t1 where t1.e=19)) then c+f*17 else t1.a end and t1.e<13)}
+} {313}
+do_test randexpr-2.1308 {
+  db eval {SELECT t1.c+case when t1.a in (select max(coalesce((select coalesce((select coalesce((select max(19+case t1.f when a then e else t1.d end) from t1 where t1.d> -c),b) from t1 where (t1.c=e) and t1.f=17), -a) from t1 where (e not between e and 11)),t1.f)) & cast(avg(t1.a) AS integer)*max(t1.c) from t1 union select count(distinct c)-max(a) & min(t1.b) & (count(*))* -min(f) from t1) then t1.a when exists(select 1 from t1 where not exists(select 1 from t1 where  -17>11)) then (13) else 13 end FROM t1 WHERE NOT (19=case when exists(select 1 from t1 where t1.f not between 11 and ~c+b-t1.c*case when t1.f<13+(t1.d) and  -t1.f<17 or (b<>b) then ~d else t1.b end) or exists(select 1 from t1 where not exists(select 1 from t1 where t1.e=19)) then c+f*17 else t1.a end and t1.e<13)}
+} {313}
+do_test randexpr-2.1309 {
+  db eval {SELECT 13-case when exists(select 1 from t1 where f+b>t1.f+t1.c) or +17 |  -coalesce((select case coalesce((select 13-(select (cast(avg(13) AS integer))-max(t1.b) from t1) from t1 where  -c in (select max(17) from t1 union select max(t1.b) from t1)),t1.a) when t1.d then 19 else d end from t1 where d>=11),b) between 13 and 11 and 17<=13 then a | t1.c+t1.f else c end FROM t1 WHERE (case when a not in (t1.d+t1.f,b,t1.b) then case when case f | t1.c when t1.e then e else (t1.a)-d | 13 end<>f then t1.e when (((13) in (select min(t1.a) from t1 union select max( -e) from t1) or t1.f between 13 and  -t1.b or (f>=f) or 19<c or t1.d<=13)) then 13 else 19 end else  -t1.b end) not between 17 and e}
+} {}
+do_test randexpr-2.1310 {
+  db eval {SELECT 13-case when exists(select 1 from t1 where f+b>t1.f+t1.c) or +17 |  -coalesce((select case coalesce((select 13-(select (cast(avg(13) AS integer))-max(t1.b) from t1) from t1 where  -c in (select max(17) from t1 union select max(t1.b) from t1)),t1.a) when t1.d then 19 else d end from t1 where d>=11),b) between 13 and 11 and 17<=13 then a | t1.c+t1.f else c end FROM t1 WHERE NOT ((case when a not in (t1.d+t1.f,b,t1.b) then case when case f | t1.c when t1.e then e else (t1.a)-d | 13 end<>f then t1.e when (((13) in (select min(t1.a) from t1 union select max( -e) from t1) or t1.f between 13 and  -t1.b or (f>=f) or 19<c or t1.d<=13)) then 13 else 19 end else  -t1.b end) not between 17 and e)}
+} {-287}
+do_test randexpr-2.1311 {
+  db eval {SELECT 13-case when exists(select 1 from t1 where f+b>t1.f+t1.c) or +17 &  -coalesce((select case coalesce((select 13-(select (cast(avg(13) AS integer))-max(t1.b) from t1) from t1 where  -c in (select max(17) from t1 union select max(t1.b) from t1)),t1.a) when t1.d then 19 else d end from t1 where d>=11),b) between 13 and 11 and 17<=13 then a & t1.c+t1.f else c end FROM t1 WHERE NOT ((case when a not in (t1.d+t1.f,b,t1.b) then case when case f | t1.c when t1.e then e else (t1.a)-d | 13 end<>f then t1.e when (((13) in (select min(t1.a) from t1 union select max( -e) from t1) or t1.f between 13 and  -t1.b or (f>=f) or 19<c or t1.d<=13)) then 13 else 19 end else  -t1.b end) not between 17 and e)}
+} {-287}
+do_test randexpr-2.1312 {
+  db eval {SELECT a+case when ((~t1.d*13<=e or (coalesce((select coalesce((select case when  -t1.e<>t1.e or f between b and 13 then t1.c else c end |  -b from t1 where 17<=17),t1.e) from t1 where 11<c and t1.b not between f and t1.d or 13<=17),t1.f)) not in (13,t1.e,13) and ((13>=d) and t1.e>17))) then t1.a | (select ~ - -cast(avg( -c) AS integer) from t1) else c end FROM t1 WHERE t1.f>=e and t1.f in (select 17 from t1 union select case when (not exists(select 1 from t1 where case when coalesce((select max(19+t1.c) from t1 where 17>=t1.f),c)+19+t1.c< -d then t1.d when t1.c not in (c,t1.f,e) then 17 else t1.d end<t1.e) or (f<=t1.b)) and t1.a not in (a,11, -t1.f) then coalesce((select f from t1 where 17 not in (e,b,t1.f)),t1.f-t1.d) | t1.b when  -19<>11 then d else 13 end from t1)}
+} {}
+do_test randexpr-2.1313 {
+  db eval {SELECT a+case when ((~t1.d*13<=e or (coalesce((select coalesce((select case when  -t1.e<>t1.e or f between b and 13 then t1.c else c end |  -b from t1 where 17<=17),t1.e) from t1 where 11<c and t1.b not between f and t1.d or 13<=17),t1.f)) not in (13,t1.e,13) and ((13>=d) and t1.e>17))) then t1.a | (select ~ - -cast(avg( -c) AS integer) from t1) else c end FROM t1 WHERE NOT (t1.f>=e and t1.f in (select 17 from t1 union select case when (not exists(select 1 from t1 where case when coalesce((select max(19+t1.c) from t1 where 17>=t1.f),c)+19+t1.c< -d then t1.d when t1.c not in (c,t1.f,e) then 17 else t1.d end<t1.e) or (f<=t1.b)) and t1.a not in (a,11, -t1.f) then coalesce((select f from t1 where 17 not in (e,b,t1.f)),t1.f-t1.d) | t1.b when  -19<>11 then d else 13 end from t1))}
+} {467}
+do_test randexpr-2.1314 {
+  db eval {SELECT a+case when ((~t1.d*13<=e or (coalesce((select coalesce((select case when  -t1.e<>t1.e or f between b and 13 then t1.c else c end &  -b from t1 where 17<=17),t1.e) from t1 where 11<c and t1.b not between f and t1.d or 13<=17),t1.f)) not in (13,t1.e,13) and ((13>=d) and t1.e>17))) then t1.a & (select ~ - -cast(avg( -c) AS integer) from t1) else c end FROM t1 WHERE NOT (t1.f>=e and t1.f in (select 17 from t1 union select case when (not exists(select 1 from t1 where case when coalesce((select max(19+t1.c) from t1 where 17>=t1.f),c)+19+t1.c< -d then t1.d when t1.c not in (c,t1.f,e) then 17 else t1.d end<t1.e) or (f<=t1.b)) and t1.a not in (a,11, -t1.f) then coalesce((select f from t1 where 17 not in (e,b,t1.f)),t1.f-t1.d) | t1.b when  -19<>11 then d else 13 end from t1))}
+} {132}
+do_test randexpr-2.1315 {
+  db eval {SELECT case when t1.b not in (17 | t1.e*t1.a,11,(select +case max((select  -+case (max(t1.f)) when count(*) then count(distinct d) else  -( -(cast(avg(f) AS integer))) end-count(distinct t1.a) from t1)) | count(distinct (t1.e)) when  -min(c) then count(*) else  -count(distinct e) end | cast(avg(17) AS integer) from t1)) then case when d<=t1.c and (exists(select 1 from t1 where (select count(distinct (e)) from t1)=(abs(17)/abs(d)))) then (abs(t1.f)/abs(t1.c)) when t1.f<>e or t1.c<=d and t1.e<=t1.d then 19 else  - -d end-t1.e else (t1.f) end FROM t1 WHERE not t1.b=coalesce((select (abs(c)/abs(11)) from t1 where exists(select 1 from t1 where  -coalesce((select max(((abs(coalesce((select max(case (select min((abs(19)/abs(19))+19)*count(*)- -cast(avg(t1.d) AS integer)-max(17)+min( -11) from t1) when e then t1.e else f end) from t1 where t1.d<=t1.f), -f)- -t1.e)/abs(d))-t1.b)) from t1 where c<11),t1.b)*a not in (d,d,f))),c)}
+} {-481}
+do_test randexpr-2.1316 {
+  db eval {SELECT case when t1.b not in (17 | t1.e*t1.a,11,(select +case max((select  -+case (max(t1.f)) when count(*) then count(distinct d) else  -( -(cast(avg(f) AS integer))) end-count(distinct t1.a) from t1)) | count(distinct (t1.e)) when  -min(c) then count(*) else  -count(distinct e) end | cast(avg(17) AS integer) from t1)) then case when d<=t1.c and (exists(select 1 from t1 where (select count(distinct (e)) from t1)=(abs(17)/abs(d)))) then (abs(t1.f)/abs(t1.c)) when t1.f<>e or t1.c<=d and t1.e<=t1.d then 19 else  - -d end-t1.e else (t1.f) end FROM t1 WHERE NOT (not t1.b=coalesce((select (abs(c)/abs(11)) from t1 where exists(select 1 from t1 where  -coalesce((select max(((abs(coalesce((select max(case (select min((abs(19)/abs(19))+19)*count(*)- -cast(avg(t1.d) AS integer)-max(17)+min( -11) from t1) when e then t1.e else f end) from t1 where t1.d<=t1.f), -f)- -t1.e)/abs(d))-t1.b)) from t1 where c<11),t1.b)*a not in (d,d,f))),c))}
+} {}
+do_test randexpr-2.1317 {
+  db eval {SELECT case when t1.b not in (17 & t1.e*t1.a,11,(select +case max((select  -+case (max(t1.f)) when count(*) then count(distinct d) else  -( -(cast(avg(f) AS integer))) end-count(distinct t1.a) from t1)) & count(distinct (t1.e)) when  -min(c) then count(*) else  -count(distinct e) end & cast(avg(17) AS integer) from t1)) then case when d<=t1.c and (exists(select 1 from t1 where (select count(distinct (e)) from t1)=(abs(17)/abs(d)))) then (abs(t1.f)/abs(t1.c)) when t1.f<>e or t1.c<=d and t1.e<=t1.d then 19 else  - -d end-t1.e else (t1.f) end FROM t1 WHERE not t1.b=coalesce((select (abs(c)/abs(11)) from t1 where exists(select 1 from t1 where  -coalesce((select max(((abs(coalesce((select max(case (select min((abs(19)/abs(19))+19)*count(*)- -cast(avg(t1.d) AS integer)-max(17)+min( -11) from t1) when e then t1.e else f end) from t1 where t1.d<=t1.f), -f)- -t1.e)/abs(d))-t1.b)) from t1 where c<11),t1.b)*a not in (d,d,f))),c)}
+} {-481}
+do_test randexpr-2.1318 {
+  db eval {SELECT  -t1.a*(select (cast(avg((select count(*)-abs(count(*)*count(*)) from t1)) AS integer)++max(t1.d))*cast(avg(t1.a) AS integer) from t1)+t1.c+t1.c+d-e | 11+t1.b-coalesce((select max(case when exists(select 1 from t1 where t1.a+11=t1.b) then c when t1.a not between t1.f and t1.d or 13<11 then  -b else 19 end) from t1 where c>=t1.f),t1.f) FROM t1 WHERE exists(select 1 from t1 where (f=(d)*e))}
+} {}
+do_test randexpr-2.1319 {
+  db eval {SELECT  -t1.a*(select (cast(avg((select count(*)-abs(count(*)*count(*)) from t1)) AS integer)++max(t1.d))*cast(avg(t1.a) AS integer) from t1)+t1.c+t1.c+d-e | 11+t1.b-coalesce((select max(case when exists(select 1 from t1 where t1.a+11=t1.b) then c when t1.a not between t1.f and t1.d or 13<11 then  -b else 19 end) from t1 where c>=t1.f),t1.f) FROM t1 WHERE NOT (exists(select 1 from t1 where (f=(d)*e)))}
+} {-257}
+do_test randexpr-2.1320 {
+  db eval {SELECT  -t1.a*(select (cast(avg((select count(*)-abs(count(*)*count(*)) from t1)) AS integer)++max(t1.d))*cast(avg(t1.a) AS integer) from t1)+t1.c+t1.c+d-e & 11+t1.b-coalesce((select max(case when exists(select 1 from t1 where t1.a+11=t1.b) then c when t1.a not between t1.f and t1.d or 13<11 then  -b else 19 end) from t1 where c>=t1.f),t1.f) FROM t1 WHERE NOT (exists(select 1 from t1 where (f=(d)*e)))}
+} {-3999632}
+do_test randexpr-2.1321 {
+  db eval {SELECT  -case when t1.a+ -c+coalesce((select d from t1 where (t1.d between a and case when t1.c*t1.b*a between a and 13 then t1.d else 11 end) or not t1.e in (select max(d) from t1 union select max(t1.e)-( -count(distinct t1.e)) from t1) or t1.c>=t1.b or a not in (c,t1.f,t1.d) and b<=t1.c),13)+d-(17) | t1.c*17<=t1.a then t1.c else d end FROM t1 WHERE case a when e then f else case when  -t1.c not between e*f | b and t1.d then case (select max((b)) from t1)+coalesce((select max(case when 19 in (b,e,17) then 13 when 11 in (t1.a,t1.a,t1.a) then t1.e else 19 end) from t1 where a<=e and 13 between t1.e and  -t1.f),13) when 17 then a else t1.d end when e in (select f from t1 union select  -t1.d from t1) then t1.a else c end*d end-13*a not in (19,t1.d,19)}
+} {-400}
+do_test randexpr-2.1322 {
+  db eval {SELECT  -case when t1.a+ -c+coalesce((select d from t1 where (t1.d between a and case when t1.c*t1.b*a between a and 13 then t1.d else 11 end) or not t1.e in (select max(d) from t1 union select max(t1.e)-( -count(distinct t1.e)) from t1) or t1.c>=t1.b or a not in (c,t1.f,t1.d) and b<=t1.c),13)+d-(17) | t1.c*17<=t1.a then t1.c else d end FROM t1 WHERE NOT (case a when e then f else case when  -t1.c not between e*f | b and t1.d then case (select max((b)) from t1)+coalesce((select max(case when 19 in (b,e,17) then 13 when 11 in (t1.a,t1.a,t1.a) then t1.e else 19 end) from t1 where a<=e and 13 between t1.e and  -t1.f),13) when 17 then a else t1.d end when e in (select f from t1 union select  -t1.d from t1) then t1.a else c end*d end-13*a not in (19,t1.d,19))}
+} {}
+do_test randexpr-2.1323 {
+  db eval {SELECT  -case when t1.a+ -c+coalesce((select d from t1 where (t1.d between a and case when t1.c*t1.b*a between a and 13 then t1.d else 11 end) or not t1.e in (select max(d) from t1 union select max(t1.e)-( -count(distinct t1.e)) from t1) or t1.c>=t1.b or a not in (c,t1.f,t1.d) and b<=t1.c),13)+d-(17) & t1.c*17<=t1.a then t1.c else d end FROM t1 WHERE case a when e then f else case when  -t1.c not between e*f | b and t1.d then case (select max((b)) from t1)+coalesce((select max(case when 19 in (b,e,17) then 13 when 11 in (t1.a,t1.a,t1.a) then t1.e else 19 end) from t1 where a<=e and 13 between t1.e and  -t1.f),13) when 17 then a else t1.d end when e in (select f from t1 union select  -t1.d from t1) then t1.a else c end*d end-13*a not in (19,t1.d,19)}
+} {-400}
+do_test randexpr-2.1324 {
+  db eval {SELECT coalesce((select (abs(t1.a)/abs(13)) from t1 where a<>(select max(b)-abs(+min(f+13*17+~coalesce((select case when 11-t1.c<>19 then t1.c when (c) not between t1.e and d and 11 in (t1.f,13,((c))) then 19 else 11 end from t1 where ( -d)<e and 17>f),11)+c-t1.c)) |  - - -+max(19) from t1)-f),b) FROM t1 WHERE t1.b-t1.a+case ((t1.a)) when t1.f then (abs(e*e-(e)*c)/abs(t1.f)) else (abs(t1.a)/abs(t1.b)) end between f and (select case cast(avg(13) AS integer) when (count(*)) then (~abs( -case count(*) when abs((count(*))) then count(distinct 13) else count(*) end)-(count(distinct 11)))-count(distinct 19)*((max(t1.c)))-cast(avg(11) AS integer) else (max(19)) end from t1)}
+} {}
+do_test randexpr-2.1325 {
+  db eval {SELECT coalesce((select (abs(t1.a)/abs(13)) from t1 where a<>(select max(b)-abs(+min(f+13*17+~coalesce((select case when 11-t1.c<>19 then t1.c when (c) not between t1.e and d and 11 in (t1.f,13,((c))) then 19 else 11 end from t1 where ( -d)<e and 17>f),11)+c-t1.c)) |  - - -+max(19) from t1)-f),b) FROM t1 WHERE NOT (t1.b-t1.a+case ((t1.a)) when t1.f then (abs(e*e-(e)*c)/abs(t1.f)) else (abs(t1.a)/abs(t1.b)) end between f and (select case cast(avg(13) AS integer) when (count(*)) then (~abs( -case count(*) when abs((count(*))) then count(distinct 13) else count(*) end)-(count(distinct 11)))-count(distinct 19)*((max(t1.c)))-cast(avg(11) AS integer) else (max(19)) end from t1))}
+} {7}
+do_test randexpr-2.1326 {
+  db eval {SELECT coalesce((select (abs(t1.a)/abs(13)) from t1 where a<>(select max(b)-abs(+min(f+13*17+~coalesce((select case when 11-t1.c<>19 then t1.c when (c) not between t1.e and d and 11 in (t1.f,13,((c))) then 19 else 11 end from t1 where ( -d)<e and 17>f),11)+c-t1.c)) &  - - -+max(19) from t1)-f),b) FROM t1 WHERE NOT (t1.b-t1.a+case ((t1.a)) when t1.f then (abs(e*e-(e)*c)/abs(t1.f)) else (abs(t1.a)/abs(t1.b)) end between f and (select case cast(avg(13) AS integer) when (count(*)) then (~abs( -case count(*) when abs((count(*))) then count(distinct 13) else count(*) end)-(count(distinct 11)))-count(distinct 19)*((max(t1.c)))-cast(avg(11) AS integer) else (max(19)) end from t1))}
+} {7}
+do_test randexpr-2.1327 {
+  db eval {SELECT t1.d*coalesce((select d from t1 where coalesce((select max(t1.c) from t1 where 11<>13),e)<=(select ~min(13) from t1)*t1.a),c)-coalesce((select (t1.b+17) | (abs( -~17)/abs(t1.d)) from t1 where not exists(select 1 from t1 where case t1.d when case when t1.f not in (t1.e,e,17) then f when t1.c not between 11 and  -t1.a then b else 17 end+13 then t1.f else t1.b end+13+t1.b between 17 and 13)),t1.b)+t1.a FROM t1 WHERE (not d in (t1.d,(select max(e) from t1),case d*case when not exists(select 1 from t1 where not exists(select 1 from t1 where coalesce((select max(t1.c) from t1 where t1.b<=11-d+(select  -max(13-t1.f) from t1)*t1.a),19)>t1.c) and c not between d and 19) then 11+~ -t1.a when t1.e<t1.d then f else t1.a end when 17 then t1.b else t1.c end))}
+} {}
+do_test randexpr-2.1328 {
+  db eval {SELECT t1.d*coalesce((select d from t1 where coalesce((select max(t1.c) from t1 where 11<>13),e)<=(select ~min(13) from t1)*t1.a),c)-coalesce((select (t1.b+17) | (abs( -~17)/abs(t1.d)) from t1 where not exists(select 1 from t1 where case t1.d when case when t1.f not in (t1.e,e,17) then f when t1.c not between 11 and  -t1.a then b else 17 end+13 then t1.f else t1.b end+13+t1.b between 17 and 13)),t1.b)+t1.a FROM t1 WHERE NOT ((not d in (t1.d,(select max(e) from t1),case d*case when not exists(select 1 from t1 where not exists(select 1 from t1 where coalesce((select max(t1.c) from t1 where t1.b<=11-d+(select  -max(13-t1.f) from t1)*t1.a),19)>t1.c) and c not between d and 19) then 11+~ -t1.a when t1.e<t1.d then f else t1.a end when 17 then t1.b else t1.c end)))}
+} {119883}
+do_test randexpr-2.1329 {
+  db eval {SELECT t1.d*coalesce((select d from t1 where coalesce((select max(t1.c) from t1 where 11<>13),e)<=(select ~min(13) from t1)*t1.a),c)-coalesce((select (t1.b+17) & (abs( -~17)/abs(t1.d)) from t1 where not exists(select 1 from t1 where case t1.d when case when t1.f not in (t1.e,e,17) then f when t1.c not between 11 and  -t1.a then b else 17 end+13 then t1.f else t1.b end+13+t1.b between 17 and 13)),t1.b)+t1.a FROM t1 WHERE NOT ((not d in (t1.d,(select max(e) from t1),case d*case when not exists(select 1 from t1 where not exists(select 1 from t1 where coalesce((select max(t1.c) from t1 where t1.b<=11-d+(select  -max(13-t1.f) from t1)*t1.a),19)>t1.c) and c not between d and 19) then 11+~ -t1.a when t1.e<t1.d then f else t1.a end when 17 then t1.b else t1.c end)))}
+} {120100}
+do_test randexpr-2.1330 {
+  db eval {SELECT d+~e-case when exists(select 1 from t1 where  -a in (select max( -(select  -count(*)-min(e)++cast(avg(case when d in (select +max(c) from t1 union select ((count(distinct (e)))) from t1) then (c) when t1.c<e then 13 else t1.f end) AS integer) from t1)++case 19 when a*t1.e then (t1.c) else 13 end+t1.b) from t1 union select max(11) from t1)) then (abs(19)/abs(t1.b)) when f>=f then t1.b else t1.a end*a+19-13 FROM t1 WHERE not exists(select 1 from t1 where exists(select 1 from t1 where (select min(case when 13 not in (19,e-t1.a*17,17- -case 19 when 17+17 then a else t1.d end+f-t1.a*11) then 17 else t1.b end*17+11-b) from t1) between 11 and f or t1.e<>t1.d)) or c not in (t1.c,17,d)}
+} {}
+do_test randexpr-2.1331 {
+  db eval {SELECT d+~e-case when exists(select 1 from t1 where  -a in (select max( -(select  -count(*)-min(e)++cast(avg(case when d in (select +max(c) from t1 union select ((count(distinct (e)))) from t1) then (c) when t1.c<e then 13 else t1.f end) AS integer) from t1)++case 19 when a*t1.e then (t1.c) else 13 end+t1.b) from t1 union select max(11) from t1)) then (abs(19)/abs(t1.b)) when f>=f then t1.b else t1.a end*a+19-13 FROM t1 WHERE NOT (not exists(select 1 from t1 where exists(select 1 from t1 where (select min(case when 13 not in (19,e-t1.a*17,17- -case 19 when 17+17 then a else t1.d end+f-t1.a*11) then 17 else t1.b end*17+11-b) from t1) between 11 and f or t1.e<>t1.d)) or c not in (t1.c,17,d))}
+} {-20095}
+do_test randexpr-2.1332 {
+  db eval {SELECT case coalesce((select 11*19*t1.a+(abs(t1.e*(select count(distinct  -d) from t1)*case t1.f when +c then d else c end+b)/abs(d)) from t1 where t1.b*13=(e)),13) when (t1.d)*b-19*(e)*e-19+(t1.d) then 13 else b end*a FROM t1 WHERE not d=19 and (abs(t1.c)/abs(17))-a<coalesce((select max(d-+d+case when exists(select 1 from t1 where (exists(select 1 from t1 where t1.b<>b))) then case when 13 not between t1.e and t1.a then c when t1.c>t1.c then 13 else a end | 19 else (19) end*f*13) from t1 where 17=t1.d and (b<>11)),t1.b)+t1.a | d}
+} {20000}
+do_test randexpr-2.1333 {
+  db eval {SELECT case coalesce((select 11*19*t1.a+(abs(t1.e*(select count(distinct  -d) from t1)*case t1.f when +c then d else c end+b)/abs(d)) from t1 where t1.b*13=(e)),13) when (t1.d)*b-19*(e)*e-19+(t1.d) then 13 else b end*a FROM t1 WHERE NOT (not d=19 and (abs(t1.c)/abs(17))-a<coalesce((select max(d-+d+case when exists(select 1 from t1 where (exists(select 1 from t1 where t1.b<>b))) then case when 13 not between t1.e and t1.a then c when t1.c>t1.c then 13 else a end | 19 else (19) end*f*13) from t1 where 17=t1.d and (b<>11)),t1.b)+t1.a | d)}
+} {}
+do_test randexpr-2.1334 {
+  db eval {SELECT (c*(abs(coalesce((select t1.b from t1 where (select ~~count(*)+ -count(distinct coalesce((select max(case coalesce((select max(a+(t1.e)) from t1 where  -(a)>=t1.e or t1.e<17),c) when t1.d then t1.a else 17 end) from t1 where t1.b not in (e,(c),t1.a)),f)) from t1) between t1.a and b),case when exists(select 1 from t1 where t1.c>=t1.a) then 19 else t1.e end+t1.c))/abs(b))-11 | 19) FROM t1 WHERE not t1.e<=d or not exists(select 1 from t1 where exists(select 1 from t1 where ( -t1.c+d)>t1.a+case when f |  -b not between 17 and e then  -t1.d else (19) end) or 11 not between 17 and t1.f) or a in (select  -cast(avg(13) AS integer)*count(distinct 17)-min(b)- -max(11) | (count(*)) from t1 union select ((((max(b))))) from t1) and t1.e in (13,(13),b)}
+} {307}
+do_test randexpr-2.1335 {
+  db eval {SELECT (c*(abs(coalesce((select t1.b from t1 where (select ~~count(*)+ -count(distinct coalesce((select max(case coalesce((select max(a+(t1.e)) from t1 where  -(a)>=t1.e or t1.e<17),c) when t1.d then t1.a else 17 end) from t1 where t1.b not in (e,(c),t1.a)),f)) from t1) between t1.a and b),case when exists(select 1 from t1 where t1.c>=t1.a) then 19 else t1.e end+t1.c))/abs(b))-11 | 19) FROM t1 WHERE NOT (not t1.e<=d or not exists(select 1 from t1 where exists(select 1 from t1 where ( -t1.c+d)>t1.a+case when f |  -b not between 17 and e then  -t1.d else (19) end) or 11 not between 17 and t1.f) or a in (select  -cast(avg(13) AS integer)*count(distinct 17)-min(b)- -max(11) | (count(*)) from t1 union select ((((max(b))))) from t1) and t1.e in (13,(13),b))}
+} {}
+do_test randexpr-2.1336 {
+  db eval {SELECT (c*(abs(coalesce((select t1.b from t1 where (select ~~count(*)+ -count(distinct coalesce((select max(case coalesce((select max(a+(t1.e)) from t1 where  -(a)>=t1.e or t1.e<17),c) when t1.d then t1.a else 17 end) from t1 where t1.b not in (e,(c),t1.a)),f)) from t1) between t1.a and b),case when exists(select 1 from t1 where t1.c>=t1.a) then 19 else t1.e end+t1.c))/abs(b))-11 & 19) FROM t1 WHERE not t1.e<=d or not exists(select 1 from t1 where exists(select 1 from t1 where ( -t1.c+d)>t1.a+case when f |  -b not between 17 and e then  -t1.d else (19) end) or 11 not between 17 and t1.f) or a in (select  -cast(avg(13) AS integer)*count(distinct 17)-min(b)- -max(11) | (count(*)) from t1 union select ((((max(b))))) from t1) and t1.e in (13,(13),b)}
+} {1}
+do_test randexpr-2.1337 {
+  db eval {SELECT (select cast(avg(13*13* -coalesce((select b from t1 where case +(abs(17)/abs(d))*e+c-case  -case when not a in (d,13,t1.b) then t1.b when t1.f<=b then e else  -f end-17 when t1.e then t1.d else a end when c then b else f end<>e or e<b),f)+t1.a-d*a+t1.c) AS integer) from t1) FROM t1 WHERE 19 in (select  -~count(distinct case when not not not exists(select 1 from t1 where (d in ((abs(19*t1.f-t1.e*e)/abs(11))*13,t1.f,t1.f))) then 13 else t1.a+17-13 end)-min(t1.f) from t1 union select ( -abs(count(distinct d)))-min(t1.b)*+(+count(*) | (min(19)))+min(c) from t1)}
+} {}
+do_test randexpr-2.1338 {
+  db eval {SELECT (select cast(avg(13*13* -coalesce((select b from t1 where case +(abs(17)/abs(d))*e+c-case  -case when not a in (d,13,t1.b) then t1.b when t1.f<=b then e else  -f end-17 when t1.e then t1.d else a end when c then b else f end<>e or e<b),f)+t1.a-d*a+t1.c) AS integer) from t1) FROM t1 WHERE NOT (19 in (select  -~count(distinct case when not not not exists(select 1 from t1 where (d in ((abs(19*t1.f-t1.e*e)/abs(11))*13,t1.f,t1.f))) then 13 else t1.a+17-13 end)-min(t1.f) from t1 union select ( -abs(count(distinct d)))-min(t1.b)*+(+count(*) | (min(19)))+min(c) from t1))}
+} {-73400}
+do_test randexpr-2.1339 {
+  db eval {SELECT b | t1.d- -coalesce((select case coalesce((select max((select (abs(cast(avg(coalesce((select max(coalesce((select 17 from t1 where  -11=t1.e),a)) from t1 where not exists(select 1 from t1 where 13 between t1.f and 13)),11)-c) AS integer)))+min( -b) from t1)+b) from t1 where t1.d not in (b*19,t1.a,a)),t1.e) when t1.e then t1.b else t1.d end from t1 where (e not in (b,t1.a,(a)))),13) FROM t1 WHERE t1.c=coalesce((select t1.d*(select count(*) from t1) from t1 where ((abs(e)/abs(case 13 when t1.d then t1.e else 11 end+13))>t1.d) or (t1.f in (select 11 from t1 union select t1.c from t1) or c>t1.e and b not in (t1.b, -t1.e,t1.a)) or c<>b),(a))-19*t1.c-c*t1.d and exists(select 1 from t1 where not exists(select 1 from t1 where t1.a in (t1.b,e,19) or not exists(select 1 from t1 where t1.c=19)))}
+} {}
+do_test randexpr-2.1340 {
+  db eval {SELECT b | t1.d- -coalesce((select case coalesce((select max((select (abs(cast(avg(coalesce((select max(coalesce((select 17 from t1 where  -11=t1.e),a)) from t1 where not exists(select 1 from t1 where 13 between t1.f and 13)),11)-c) AS integer)))+min( -b) from t1)+b) from t1 where t1.d not in (b*19,t1.a,a)),t1.e) when t1.e then t1.b else t1.d end from t1 where (e not in (b,t1.a,(a)))),13) FROM t1 WHERE NOT (t1.c=coalesce((select t1.d*(select count(*) from t1) from t1 where ((abs(e)/abs(case 13 when t1.d then t1.e else 11 end+13))>t1.d) or (t1.f in (select 11 from t1 union select t1.c from t1) or c>t1.e and b not in (t1.b, -t1.e,t1.a)) or c<>b),(a))-19*t1.c-c*t1.d and exists(select 1 from t1 where not exists(select 1 from t1 where t1.a in (t1.b,e,19) or not exists(select 1 from t1 where t1.c=19))))}
+} {1000}
+do_test randexpr-2.1341 {
+  db eval {SELECT b & t1.d- -coalesce((select case coalesce((select max((select (abs(cast(avg(coalesce((select max(coalesce((select 17 from t1 where  -11=t1.e),a)) from t1 where not exists(select 1 from t1 where 13 between t1.f and 13)),11)-c) AS integer)))+min( -b) from t1)+b) from t1 where t1.d not in (b*19,t1.a,a)),t1.e) when t1.e then t1.b else t1.d end from t1 where (e not in (b,t1.a,(a)))),13) FROM t1 WHERE NOT (t1.c=coalesce((select t1.d*(select count(*) from t1) from t1 where ((abs(e)/abs(case 13 when t1.d then t1.e else 11 end+13))>t1.d) or (t1.f in (select 11 from t1 union select t1.c from t1) or c>t1.e and b not in (t1.b, -t1.e,t1.a)) or c<>b),(a))-19*t1.c-c*t1.d and exists(select 1 from t1 where not exists(select 1 from t1 where t1.a in (t1.b,e,19) or not exists(select 1 from t1 where t1.c=19))))}
+} {0}
+do_test randexpr-2.1342 {
+  db eval {SELECT coalesce((select 19 from t1 where not exists(select 1 from t1 where 11+d between b and 19-case when t1.e>e*f+case when 13 in (select count(*) from t1 union select ~min(a*t1.d)+count(*) from t1) then c when (select min(d) from t1) in (select cast(avg(17) AS integer) from t1 union select min(t1.a) from t1) and 11<>(f) then  -f else 19 end | c then 13 else 19 end*b*t1.b)),a) FROM t1 WHERE (coalesce((select d from t1 where coalesce((select ~(coalesce((select max(t1.a) from t1 where 13+t1.c-c*coalesce((select t1.a from t1 where ( -t1.d not between a and d)),t1.e)+t1.e- - -11-t1.d*11<17),d)) from t1 where f between t1.a and t1.a),t1.c)<>e),t1.d)*(19)-t1.e- -17-a>=d or t1.c between f and a)}
+} {19}
+do_test randexpr-2.1343 {
+  db eval {SELECT coalesce((select 19 from t1 where not exists(select 1 from t1 where 11+d between b and 19-case when t1.e>e*f+case when 13 in (select count(*) from t1 union select ~min(a*t1.d)+count(*) from t1) then c when (select min(d) from t1) in (select cast(avg(17) AS integer) from t1 union select min(t1.a) from t1) and 11<>(f) then  -f else 19 end | c then 13 else 19 end*b*t1.b)),a) FROM t1 WHERE NOT ((coalesce((select d from t1 where coalesce((select ~(coalesce((select max(t1.a) from t1 where 13+t1.c-c*coalesce((select t1.a from t1 where ( -t1.d not between a and d)),t1.e)+t1.e- - -11-t1.d*11<17),d)) from t1 where f between t1.a and t1.a),t1.c)<>e),t1.d)*(19)-t1.e- -17-a>=d or t1.c between f and a))}
+} {}
+do_test randexpr-2.1344 {
+  db eval {SELECT coalesce((select 19 from t1 where not exists(select 1 from t1 where 11+d between b and 19-case when t1.e>e*f+case when 13 in (select count(*) from t1 union select ~min(a*t1.d)+count(*) from t1) then c when (select min(d) from t1) in (select cast(avg(17) AS integer) from t1 union select min(t1.a) from t1) and 11<>(f) then  -f else 19 end & c then 13 else 19 end*b*t1.b)),a) FROM t1 WHERE (coalesce((select d from t1 where coalesce((select ~(coalesce((select max(t1.a) from t1 where 13+t1.c-c*coalesce((select t1.a from t1 where ( -t1.d not between a and d)),t1.e)+t1.e- - -11-t1.d*11<17),d)) from t1 where f between t1.a and t1.a),t1.c)<>e),t1.d)*(19)-t1.e- -17-a>=d or t1.c between f and a)}
+} {19}
+do_test randexpr-2.1345 {
+  db eval {SELECT coalesce((select +case case when f>t1.d then a+t1.b-f when coalesce((select max(t1.b-case f when 13*t1.a then 11 else 11 end*c) from t1 where f in (select min(t1.d) from t1 union select +count(distinct f) from t1)),17) not in (e,b,t1.a) then f else t1.b end-e*t1.a when  -11 then 19 else (t1.d) end from t1 where 17 not between  -13 and t1.e),19) FROM t1 WHERE not t1.b*coalesce((select max(17 | coalesce((select coalesce((select +coalesce((select max(case when (b not in (a,t1.b, -t1.a)) and t1.f=t1.b then t1.c-t1.f when 11>d then 17 else 11 end+f) from t1 where t1.e<>b), -t1.e) from t1 where t1.f in (select min(b) from t1 union select max(19)+count(distinct e)+(count(distinct e)) |  - -count(distinct 17)*count(*) from t1)),13) from t1 where t1.f>=t1.f),t1.f)) from t1 where t1.f>=b),c)<t1.d}
+} {19}
+do_test randexpr-2.1346 {
+  db eval {SELECT coalesce((select +case case when f>t1.d then a+t1.b-f when coalesce((select max(t1.b-case f when 13*t1.a then 11 else 11 end*c) from t1 where f in (select min(t1.d) from t1 union select +count(distinct f) from t1)),17) not in (e,b,t1.a) then f else t1.b end-e*t1.a when  -11 then 19 else (t1.d) end from t1 where 17 not between  -13 and t1.e),19) FROM t1 WHERE NOT (not t1.b*coalesce((select max(17 | coalesce((select coalesce((select +coalesce((select max(case when (b not in (a,t1.b, -t1.a)) and t1.f=t1.b then t1.c-t1.f when 11>d then 17 else 11 end+f) from t1 where t1.e<>b), -t1.e) from t1 where t1.f in (select min(b) from t1 union select max(19)+count(distinct e)+(count(distinct e)) |  - -count(distinct 17)*count(*) from t1)),13) from t1 where t1.f>=t1.f),t1.f)) from t1 where t1.f>=b),c)<t1.d)}
+} {}
+do_test randexpr-2.1347 {
+  db eval {SELECT  -11* -t1.b-t1.b+ -case when t1.e-(select max((select abs((cast(avg(t1.f) AS integer)+++ -cast(avg(a | a) AS integer))) from t1))+(( -max( -b))) from t1)<=(abs(11)/abs((select count(distinct t1.e) from t1)-b*case when t1.a<>11 then t1.a when 17 not between d and 13 or t1.f in (b,b,t1.a) then t1.d else c end)) then  -t1.e else b end*t1.a FROM t1 WHERE a in ((abs(t1.c*+(abs(17-(abs(19)/abs(b-coalesce((select max(t1.c) from t1 where c>t1.f),t1.e))))/abs(t1.e))+t1.b | t1.d*t1.a)/abs(coalesce((select case when t1.f in (case when  -e<=t1.a then f else 17 end,f,b) then b else t1.c end from t1 where not a in (t1.d,t1.a,c)),t1.f))),b,t1.b) and e in (select f from t1 union select e from t1)}
+} {}
+do_test randexpr-2.1348 {
+  db eval {SELECT  -11* -t1.b-t1.b+ -case when t1.e-(select max((select abs((cast(avg(t1.f) AS integer)+++ -cast(avg(a | a) AS integer))) from t1))+(( -max( -b))) from t1)<=(abs(11)/abs((select count(distinct t1.e) from t1)-b*case when t1.a<>11 then t1.a when 17 not between d and 13 or t1.f in (b,b,t1.a) then t1.d else c end)) then  -t1.e else b end*t1.a FROM t1 WHERE NOT (a in ((abs(t1.c*+(abs(17-(abs(19)/abs(b-coalesce((select max(t1.c) from t1 where c>t1.f),t1.e))))/abs(t1.e))+t1.b | t1.d*t1.a)/abs(coalesce((select case when t1.f in (case when  -e<=t1.a then f else 17 end,f,b) then b else t1.c end from t1 where not a in (t1.d,t1.a,c)),t1.f))),b,t1.b) and e in (select f from t1 union select e from t1))}
+} {52000}
+do_test randexpr-2.1349 {
+  db eval {SELECT  -11* -t1.b-t1.b+ -case when t1.e-(select max((select abs((cast(avg(t1.f) AS integer)+++ -cast(avg(a & a) AS integer))) from t1))+(( -max( -b))) from t1)<=(abs(11)/abs((select count(distinct t1.e) from t1)-b*case when t1.a<>11 then t1.a when 17 not between d and 13 or t1.f in (b,b,t1.a) then t1.d else c end)) then  -t1.e else b end*t1.a FROM t1 WHERE NOT (a in ((abs(t1.c*+(abs(17-(abs(19)/abs(b-coalesce((select max(t1.c) from t1 where c>t1.f),t1.e))))/abs(t1.e))+t1.b | t1.d*t1.a)/abs(coalesce((select case when t1.f in (case when  -e<=t1.a then f else 17 end,f,b) then b else t1.c end from t1 where not a in (t1.d,t1.a,c)),t1.f))),b,t1.b) and e in (select f from t1 union select e from t1))}
+} {52000}
+do_test randexpr-2.1350 {
+  db eval {SELECT case when ((select count(*) | min(case when (a*e in (select  -+ -min(a) | cast(avg(11) AS integer) from t1 union select count(distinct t1.e) from t1) and exists(select 1 from t1 where not 13 in (select count(distinct 11) from t1 union select (max(19)) from t1) or (t1.f) between t1.e and (t1.e)) or t1.a<=f) or t1.e<t1.a then t1.a when t1.e not between t1.c and t1.b then t1.c | a*t1.c else  -b end) from t1))+19-17<=c then f when 19>t1.c then t1.e else t1.b end FROM t1 WHERE (c not between +(select + -~~max(coalesce((select case when t1.b<=t1.d*a then t1.c else t1.e end*t1.e from t1 where t1.d>=t1.b and c=(f) or t1.e>t1.d and b<e),t1.b))-count(*) | max(d)+cast(avg(19) AS integer) | count(distinct 17) from t1)*t1.a and ((coalesce((select max(t1.b) from t1 where t1.f in (select 17 from t1 union select a from t1)),e))*c))}
+} {}
+do_test randexpr-2.1351 {
+  db eval {SELECT case when ((select count(*) | min(case when (a*e in (select  -+ -min(a) | cast(avg(11) AS integer) from t1 union select count(distinct t1.e) from t1) and exists(select 1 from t1 where not 13 in (select count(distinct 11) from t1 union select (max(19)) from t1) or (t1.f) between t1.e and (t1.e)) or t1.a<=f) or t1.e<t1.a then t1.a when t1.e not between t1.c and t1.b then t1.c | a*t1.c else  -b end) from t1))+19-17<=c then f when 19>t1.c then t1.e else t1.b end FROM t1 WHERE NOT ((c not between +(select + -~~max(coalesce((select case when t1.b<=t1.d*a then t1.c else t1.e end*t1.e from t1 where t1.d>=t1.b and c=(f) or t1.e>t1.d and b<e),t1.b))-count(*) | max(d)+cast(avg(19) AS integer) | count(distinct 17) from t1)*t1.a and ((coalesce((select max(t1.b) from t1 where t1.f in (select 17 from t1 union select a from t1)),e))*c)))}
+} {600}
+do_test randexpr-2.1352 {
+  db eval {SELECT case when ((select count(*) & min(case when (a*e in (select  -+ -min(a) & cast(avg(11) AS integer) from t1 union select count(distinct t1.e) from t1) and exists(select 1 from t1 where not 13 in (select count(distinct 11) from t1 union select (max(19)) from t1) or (t1.f) between t1.e and (t1.e)) or t1.a<=f) or t1.e<t1.a then t1.a when t1.e not between t1.c and t1.b then t1.c & a*t1.c else  -b end) from t1))+19-17<=c then f when 19>t1.c then t1.e else t1.b end FROM t1 WHERE NOT ((c not between +(select + -~~max(coalesce((select case when t1.b<=t1.d*a then t1.c else t1.e end*t1.e from t1 where t1.d>=t1.b and c=(f) or t1.e>t1.d and b<e),t1.b))-count(*) | max(d)+cast(avg(19) AS integer) | count(distinct 17) from t1)*t1.a and ((coalesce((select max(t1.b) from t1 where t1.f in (select 17 from t1 union select a from t1)),e))*c)))}
+} {600}
+do_test randexpr-2.1353 {
+  db eval {SELECT coalesce((select max(coalesce((select max((abs((11))/abs(13))-e) from t1 where 11 not in (c,f,(select count(distinct  -17+t1.a) from t1)) or (d*coalesce((select b | coalesce((select max(17) from t1 where e in (d,t1.c,t1.c)),+b) from t1 where d in (d-13,t1.c,f)),13))<>t1.c),t1.d)) from t1 where b not in (t1.e, -13,f)),f) FROM t1 WHERE d*a | 19<> -t1.d}
+} {-500}
+do_test randexpr-2.1354 {
+  db eval {SELECT coalesce((select max(coalesce((select max((abs((11))/abs(13))-e) from t1 where 11 not in (c,f,(select count(distinct  -17+t1.a) from t1)) or (d*coalesce((select b | coalesce((select max(17) from t1 where e in (d,t1.c,t1.c)),+b) from t1 where d in (d-13,t1.c,f)),13))<>t1.c),t1.d)) from t1 where b not in (t1.e, -13,f)),f) FROM t1 WHERE NOT (d*a | 19<> -t1.d)}
+} {}
+do_test randexpr-2.1355 {
+  db eval {SELECT coalesce((select max(coalesce((select max((abs((11))/abs(13))-e) from t1 where 11 not in (c,f,(select count(distinct  -17+t1.a) from t1)) or (d*coalesce((select b & coalesce((select max(17) from t1 where e in (d,t1.c,t1.c)),+b) from t1 where d in (d-13,t1.c,f)),13))<>t1.c),t1.d)) from t1 where b not in (t1.e, -13,f)),f) FROM t1 WHERE d*a | 19<> -t1.d}
+} {-500}
+do_test randexpr-2.1356 {
+  db eval {SELECT coalesce((select t1.f from t1 where case when 19<>(c*case when 19 |  -t1.e in (select ~+(max(c)) from t1 union select min(19) from t1) then  -t1.f else 13 end-f) then ( -17) else  -19 end-b in (t1.b,t1.f,b) or c in (select ~case max( -t1.d) | count(*)*cast(avg(b) AS integer) when count(distinct t1.f) then cast(avg(t1.f) AS integer) else cast(avg(f) AS integer) end | (cast(avg( -t1.e) AS integer)) from t1 union select max(c) from t1) and t1.f in (select max(17) from t1 union select max(11) from t1)),e) FROM t1 WHERE not 13 in (select (t1.b)*(coalesce((select (abs(t1.f)/abs( -t1.f-d))-coalesce((select 19 from t1 where not exists(select 1 from t1 where (select count(distinct t1.f+19-(abs(e)/abs(e))) from t1)- -e<>d)),t1.e)* -t1.a-t1.a-(t1.f)*t1.e*t1.d-t1.b from t1 where t1.e between t1.a and b),11)) from t1 union select d from t1)}
+} {500}
+do_test randexpr-2.1357 {
+  db eval {SELECT coalesce((select t1.f from t1 where case when 19<>(c*case when 19 |  -t1.e in (select ~+(max(c)) from t1 union select min(19) from t1) then  -t1.f else 13 end-f) then ( -17) else  -19 end-b in (t1.b,t1.f,b) or c in (select ~case max( -t1.d) | count(*)*cast(avg(b) AS integer) when count(distinct t1.f) then cast(avg(t1.f) AS integer) else cast(avg(f) AS integer) end | (cast(avg( -t1.e) AS integer)) from t1 union select max(c) from t1) and t1.f in (select max(17) from t1 union select max(11) from t1)),e) FROM t1 WHERE NOT (not 13 in (select (t1.b)*(coalesce((select (abs(t1.f)/abs( -t1.f-d))-coalesce((select 19 from t1 where not exists(select 1 from t1 where (select count(distinct t1.f+19-(abs(e)/abs(e))) from t1)- -e<>d)),t1.e)* -t1.a-t1.a-(t1.f)*t1.e*t1.d-t1.b from t1 where t1.e between t1.a and b),11)) from t1 union select d from t1))}
+} {}
+do_test randexpr-2.1358 {
+  db eval {SELECT coalesce((select t1.f from t1 where case when 19<>(c*case when 19 &  -t1.e in (select ~+(max(c)) from t1 union select min(19) from t1) then  -t1.f else 13 end-f) then ( -17) else  -19 end-b in (t1.b,t1.f,b) or c in (select ~case max( -t1.d) & count(*)*cast(avg(b) AS integer) when count(distinct t1.f) then cast(avg(t1.f) AS integer) else cast(avg(f) AS integer) end & (cast(avg( -t1.e) AS integer)) from t1 union select max(c) from t1) and t1.f in (select max(17) from t1 union select max(11) from t1)),e) FROM t1 WHERE not 13 in (select (t1.b)*(coalesce((select (abs(t1.f)/abs( -t1.f-d))-coalesce((select 19 from t1 where not exists(select 1 from t1 where (select count(distinct t1.f+19-(abs(e)/abs(e))) from t1)- -e<>d)),t1.e)* -t1.a-t1.a-(t1.f)*t1.e*t1.d-t1.b from t1 where t1.e between t1.a and b),11)) from t1 union select d from t1)}
+} {500}
+do_test randexpr-2.1359 {
+  db eval {SELECT ~ -case when t1.d in (17,t1.e,case t1.b*c when  -c+f-11 | coalesce((select 11 from t1 where (select (min(13)-max(t1.c))+count(*) from t1)+13<=(( -(t1.f)))),b)+17 then t1.d else b end) then c when c between 13 and f and b>17 then f else t1.a end-t1.f FROM t1 WHERE t1.e>= -f}
+} {-1}
+do_test randexpr-2.1360 {
+  db eval {SELECT ~ -case when t1.d in (17,t1.e,case t1.b*c when  -c+f-11 | coalesce((select 11 from t1 where (select (min(13)-max(t1.c))+count(*) from t1)+13<=(( -(t1.f)))),b)+17 then t1.d else b end) then c when c between 13 and f and b>17 then f else t1.a end-t1.f FROM t1 WHERE NOT (t1.e>= -f)}
+} {}
+do_test randexpr-2.1361 {
+  db eval {SELECT ~ -case when t1.d in (17,t1.e,case t1.b*c when  -c+f-11 & coalesce((select 11 from t1 where (select (min(13)-max(t1.c))+count(*) from t1)+13<=(( -(t1.f)))),b)+17 then t1.d else b end) then c when c between 13 and f and b>17 then f else t1.a end-t1.f FROM t1 WHERE t1.e>= -f}
+} {-1}
+do_test randexpr-2.1362 {
+  db eval {SELECT ((abs(13)/abs( -b | coalesce((select 17 | t1.e from t1 where (d in (select coalesce((select 17 | (a) | c*case when case when t1.c in (select max(13) | cast(avg(t1.b) AS integer) from t1 union select count(*) from t1) then t1.c when 13>=17 then (11) else t1.e end>t1.d and t1.b>=t1.f then 13 when 11 not in (t1.d, -f,13) then f else 11 end from t1 where b<>11),d) from t1 union select t1.e from t1) or b not in (t1.e,b,e))),t1.e)))) FROM t1 WHERE 11<=coalesce((select max(t1.d) from t1 where coalesce((select ~d+t1.d-case when c not in (t1.b-f,19+~coalesce((select t1.a from t1 where t1.f<=b),case when not (e not between f and t1.e) then (t1.e)-d else b end), -t1.d) then 17 when t1.d not between 13 and t1.d then d else (c) end from t1 where c>t1.a),t1.b)<d),t1.c)}
+} {3}
+do_test randexpr-2.1363 {
+  db eval {SELECT ((abs(13)/abs( -b | coalesce((select 17 | t1.e from t1 where (d in (select coalesce((select 17 | (a) | c*case when case when t1.c in (select max(13) | cast(avg(t1.b) AS integer) from t1 union select count(*) from t1) then t1.c when 13>=17 then (11) else t1.e end>t1.d and t1.b>=t1.f then 13 when 11 not in (t1.d, -f,13) then f else 11 end from t1 where b<>11),d) from t1 union select t1.e from t1) or b not in (t1.e,b,e))),t1.e)))) FROM t1 WHERE NOT (11<=coalesce((select max(t1.d) from t1 where coalesce((select ~d+t1.d-case when c not in (t1.b-f,19+~coalesce((select t1.a from t1 where t1.f<=b),case when not (e not between f and t1.e) then (t1.e)-d else b end), -t1.d) then 17 when t1.d not between 13 and t1.d then d else (c) end from t1 where c>t1.a),t1.b)<d),t1.c))}
+} {}
+do_test randexpr-2.1364 {
+  db eval {SELECT ((abs(13)/abs( -b & coalesce((select 17 & t1.e from t1 where (d in (select coalesce((select 17 & (a) & c*case when case when t1.c in (select max(13) & cast(avg(t1.b) AS integer) from t1 union select count(*) from t1) then t1.c when 13>=17 then (11) else t1.e end>t1.d and t1.b>=t1.f then 13 when 11 not in (t1.d, -f,13) then f else 11 end from t1 where b<>11),d) from t1 union select t1.e from t1) or b not in (t1.e,b,e))),t1.e)))) FROM t1 WHERE 11<=coalesce((select max(t1.d) from t1 where coalesce((select ~d+t1.d-case when c not in (t1.b-f,19+~coalesce((select t1.a from t1 where t1.f<=b),case when not (e not between f and t1.e) then (t1.e)-d else b end), -t1.d) then 17 when t1.d not between 13 and t1.d then d else (c) end from t1 where c>t1.a),t1.b)<d),t1.c)}
+} {0}
+do_test randexpr-2.1365 {
+  db eval {SELECT case when (c between 11 and t1.e*t1.a | c) then case when (case when (b=(select max((t1.c))-min(t1.d) from t1)*b) then t1.c else 17 end-e>t1.d and a between d and d) then c else d end when exists(select 1 from t1 where (11)>19) or a in (t1.b,(t1.c),(a)) and  - -11<>13 and t1.b not between  -b and d then 19 else a end FROM t1 WHERE 19 | t1.d not between (select ~case case count(distinct t1.c) when (count(*)) then ~~~count(*) else  -count(*)- -max(coalesce((select max(19) from t1 where (abs(t1.b-b)/abs(d))+11<a and 17>=t1.a),11))*max(t1.e) | count(*)-abs(max((c)))*max(t1.d) end when  -count(*) then cast(avg(f) AS integer) else  -(max(c)) end from t1) and t1.c}
+} {400}
+do_test randexpr-2.1366 {
+  db eval {SELECT case when (c between 11 and t1.e*t1.a | c) then case when (case when (b=(select max((t1.c))-min(t1.d) from t1)*b) then t1.c else 17 end-e>t1.d and a between d and d) then c else d end when exists(select 1 from t1 where (11)>19) or a in (t1.b,(t1.c),(a)) and  - -11<>13 and t1.b not between  -b and d then 19 else a end FROM t1 WHERE NOT (19 | t1.d not between (select ~case case count(distinct t1.c) when (count(*)) then ~~~count(*) else  -count(*)- -max(coalesce((select max(19) from t1 where (abs(t1.b-b)/abs(d))+11<a and 17>=t1.a),11))*max(t1.e) | count(*)-abs(max((c)))*max(t1.d) end when  -count(*) then cast(avg(f) AS integer) else  -(max(c)) end from t1) and t1.c)}
+} {}
+do_test randexpr-2.1367 {
+  db eval {SELECT case when (c between 11 and t1.e*t1.a & c) then case when (case when (b=(select max((t1.c))-min(t1.d) from t1)*b) then t1.c else 17 end-e>t1.d and a between d and d) then c else d end when exists(select 1 from t1 where (11)>19) or a in (t1.b,(t1.c),(a)) and  - -11<>13 and t1.b not between  -b and d then 19 else a end FROM t1 WHERE 19 | t1.d not between (select ~case case count(distinct t1.c) when (count(*)) then ~~~count(*) else  -count(*)- -max(coalesce((select max(19) from t1 where (abs(t1.b-b)/abs(d))+11<a and 17>=t1.a),11))*max(t1.e) | count(*)-abs(max((c)))*max(t1.d) end when  -count(*) then cast(avg(f) AS integer) else  -(max(c)) end from t1) and t1.c}
+} {100}
+do_test randexpr-2.1368 {
+  db eval {SELECT case when not exists(select 1 from t1 where t1.c not in (t1.d,17,t1.c | coalesce((select t1.f from t1 where t1.c*t1.c-t1.e not in (t1.e*(case when (f) not between c and +f then (a) else t1.e end)+17,13, -((t1.a))) and f not between f and t1.d), -t1.e))) then (abs(e)/abs(a)) when 17<17 or 13<>a then f else (f) end FROM t1 WHERE t1.f in (e,(19),case when not exists(select 1 from t1 where coalesce((select max( -(abs(case  -t1.d when t1.d*13+coalesce((select a from t1 where d>19),t1.c) then f else b end)/abs(t1.b))) from t1 where f in (t1.a,t1.d,(c))),t1.d)+c+17<t1.b) then t1.c*t1.b else d end) and (((17 not in (17,t1.c,19))))}
+} {}
+do_test randexpr-2.1369 {
+  db eval {SELECT case when not exists(select 1 from t1 where t1.c not in (t1.d,17,t1.c | coalesce((select t1.f from t1 where t1.c*t1.c-t1.e not in (t1.e*(case when (f) not between c and +f then (a) else t1.e end)+17,13, -((t1.a))) and f not between f and t1.d), -t1.e))) then (abs(e)/abs(a)) when 17<17 or 13<>a then f else (f) end FROM t1 WHERE NOT (t1.f in (e,(19),case when not exists(select 1 from t1 where coalesce((select max( -(abs(case  -t1.d when t1.d*13+coalesce((select a from t1 where d>19),t1.c) then f else b end)/abs(t1.b))) from t1 where f in (t1.a,t1.d,(c))),t1.d)+c+17<t1.b) then t1.c*t1.b else d end) and (((17 not in (17,t1.c,19)))))}
+} {600}
+do_test randexpr-2.1370 {
+  db eval {SELECT case when not exists(select 1 from t1 where t1.c not in (t1.d,17,t1.c & coalesce((select t1.f from t1 where t1.c*t1.c-t1.e not in (t1.e*(case when (f) not between c and +f then (a) else t1.e end)+17,13, -((t1.a))) and f not between f and t1.d), -t1.e))) then (abs(e)/abs(a)) when 17<17 or 13<>a then f else (f) end FROM t1 WHERE NOT (t1.f in (e,(19),case when not exists(select 1 from t1 where coalesce((select max( -(abs(case  -t1.d when t1.d*13+coalesce((select a from t1 where d>19),t1.c) then f else b end)/abs(t1.b))) from t1 where f in (t1.a,t1.d,(c))),t1.d)+c+17<t1.b) then t1.c*t1.b else d end) and (((17 not in (17,t1.c,19)))))}
+} {600}
+do_test randexpr-2.1371 {
+  db eval {SELECT case +b when coalesce((select max(b) from t1 where exists(select 1 from t1 where (((+~13) in (select case cast(avg(t1.e+(11)+t1.b*e) AS integer) when max(((t1.e))) then min(b)-case  -cast(avg(17) AS integer) when min(e) then cast(avg(t1.c) AS integer) else (max(d)) end-count(distinct t1.f) else count(distinct d) end+count(*) from t1 union select max(d) from t1))))),(abs(~d)/abs(11))) then  -e else  - -13 end+d | t1.d FROM t1 WHERE ((a)>coalesce((select max(coalesce((select max(case when case case when 19 in (select case min(11) when  - -cast(avg(c) AS integer) then count(*) else count(*) end-cast(avg(19) AS integer) | cast(avg(17) AS integer) from t1 union select min(t1.d) from t1) then t1.b*t1.a else  -t1.a end when t1.f then e else t1.d end<a then t1.a when b between  -a and t1.d then  -a else t1.f end) from t1 where b<>d),t1.d)) from t1 where t1.c<>e and  -17<=a),t1.d))}
+} {413}
+do_test randexpr-2.1372 {
+  db eval {SELECT case +b when coalesce((select max(b) from t1 where exists(select 1 from t1 where (((+~13) in (select case cast(avg(t1.e+(11)+t1.b*e) AS integer) when max(((t1.e))) then min(b)-case  -cast(avg(17) AS integer) when min(e) then cast(avg(t1.c) AS integer) else (max(d)) end-count(distinct t1.f) else count(distinct d) end+count(*) from t1 union select max(d) from t1))))),(abs(~d)/abs(11))) then  -e else  - -13 end+d | t1.d FROM t1 WHERE NOT (((a)>coalesce((select max(coalesce((select max(case when case case when 19 in (select case min(11) when  - -cast(avg(c) AS integer) then count(*) else count(*) end-cast(avg(19) AS integer) | cast(avg(17) AS integer) from t1 union select min(t1.d) from t1) then t1.b*t1.a else  -t1.a end when t1.f then e else t1.d end<a then t1.a when b between  -a and t1.d then  -a else t1.f end) from t1 where b<>d),t1.d)) from t1 where t1.c<>e and  -17<=a),t1.d)))}
+} {}
+do_test randexpr-2.1373 {
+  db eval {SELECT case +b when coalesce((select max(b) from t1 where exists(select 1 from t1 where (((+~13) in (select case cast(avg(t1.e+(11)+t1.b*e) AS integer) when max(((t1.e))) then min(b)-case  -cast(avg(17) AS integer) when min(e) then cast(avg(t1.c) AS integer) else (max(d)) end-count(distinct t1.f) else count(distinct d) end+count(*) from t1 union select max(d) from t1))))),(abs(~d)/abs(11))) then  -e else  - -13 end+d & t1.d FROM t1 WHERE ((a)>coalesce((select max(coalesce((select max(case when case case when 19 in (select case min(11) when  - -cast(avg(c) AS integer) then count(*) else count(*) end-cast(avg(19) AS integer) | cast(avg(17) AS integer) from t1 union select min(t1.d) from t1) then t1.b*t1.a else  -t1.a end when t1.f then e else t1.d end<a then t1.a when b between  -a and t1.d then  -a else t1.f end) from t1 where b<>d),t1.d)) from t1 where t1.c<>e and  -17<=a),t1.d))}
+} {400}
+do_test randexpr-2.1374 {
+  db eval {SELECT +c+case when (~t1.e in (+(select case cast(avg(17) AS integer)+min(19)+count(*) when  -max(c) then count(distinct t1.c) else  - - -(max(13)) end*count(distinct ( -17)) from t1)-case when d+case when f<>d or t1.d<=t1.e then t1.a else  -11 end in (select cast(avg(t1.e) AS integer) from t1 union select cast(avg(b) AS integer) from t1) then 19 when ((t1.c) between e and a and  -13 not in (d,f,e)) then t1.e else d end,a,t1.b)) then case when t1.b<19 then 13 else 19 end else t1.c end FROM t1 WHERE not exists(select 1 from t1 where 19>t1.f+coalesce((select 13 from t1 where t1.d in (coalesce((select max(e) from t1 where c<t1.c),case when exists(select 1 from t1 where not exists(select 1 from t1 where not (coalesce((select 19 from t1 where case when not exists(select 1 from t1 where 17<17) then t1.f else a end>=t1.c),t1.d) between t1.b and c))) then  -f+(t1.b)-t1.e-t1.c+t1.c when c in (select  -( -f) from t1 union select 13 from t1) then t1.e else t1.a end),t1.b,a)),11))}
+} {600}
+do_test randexpr-2.1375 {
+  db eval {SELECT +c+case when (~t1.e in (+(select case cast(avg(17) AS integer)+min(19)+count(*) when  -max(c) then count(distinct t1.c) else  - - -(max(13)) end*count(distinct ( -17)) from t1)-case when d+case when f<>d or t1.d<=t1.e then t1.a else  -11 end in (select cast(avg(t1.e) AS integer) from t1 union select cast(avg(b) AS integer) from t1) then 19 when ((t1.c) between e and a and  -13 not in (d,f,e)) then t1.e else d end,a,t1.b)) then case when t1.b<19 then 13 else 19 end else t1.c end FROM t1 WHERE NOT (not exists(select 1 from t1 where 19>t1.f+coalesce((select 13 from t1 where t1.d in (coalesce((select max(e) from t1 where c<t1.c),case when exists(select 1 from t1 where not exists(select 1 from t1 where not (coalesce((select 19 from t1 where case when not exists(select 1 from t1 where 17<17) then t1.f else a end>=t1.c),t1.d) between t1.b and c))) then  -f+(t1.b)-t1.e-t1.c+t1.c when c in (select  -( -f) from t1 union select 13 from t1) then t1.e else t1.a end),t1.b,a)),11)))}
+} {}
+do_test randexpr-2.1376 {
+  db eval {SELECT (17-t1.e-17*t1.d+coalesce((select  -(abs(t1.a)/abs(t1.e))-t1.e*13*c*c-c from t1 where coalesce((select max(t1.a) from t1 where +case when t1.a not in (e,(t1.b),t1.f) then 11 when t1.b not between t1.c and t1.c then d else b end not in (13,t1.c,b)),f) between f and 11),d)-t1.d)-f+13 FROM t1 WHERE t1.f<>case when 11 in (coalesce((select e from t1 where not exists(select 1 from t1 where not case when t1.c between 11 and f then +t1.d else (((abs(coalesce((select  -t1.c from t1 where (c in (b,b,t1.e))),13) | t1.e*t1.d)/abs(c))-t1.f)) end-t1.d<a and a>=c)),t1.e),d,t1.e) or t1.b<t1.a then 13 when 11=a then t1.a else t1.a end}
+} {-7870}
+do_test randexpr-2.1377 {
+  db eval {SELECT (17-t1.e-17*t1.d+coalesce((select  -(abs(t1.a)/abs(t1.e))-t1.e*13*c*c-c from t1 where coalesce((select max(t1.a) from t1 where +case when t1.a not in (e,(t1.b),t1.f) then 11 when t1.b not between t1.c and t1.c then d else b end not in (13,t1.c,b)),f) between f and 11),d)-t1.d)-f+13 FROM t1 WHERE NOT (t1.f<>case when 11 in (coalesce((select e from t1 where not exists(select 1 from t1 where not case when t1.c between 11 and f then +t1.d else (((abs(coalesce((select  -t1.c from t1 where (c in (b,b,t1.e))),13) | t1.e*t1.d)/abs(c))-t1.f)) end-t1.d<a and a>=c)),t1.e),d,t1.e) or t1.b<t1.a then 13 when 11=a then t1.a else t1.a end)}
+} {}
+do_test randexpr-2.1378 {
+  db eval {SELECT case +c when 19*t1.b*coalesce((select t1.b-(19* -case when (coalesce((select t1.a from t1 where c>=e or t1.a not in (t1.c,e,t1.f)),t1.b)+19<=t1.a) then ((b)) when d>=b or d not between 19 and t1.e then t1.c else t1.b end-t1.a*f) from t1 where 13 between t1.f and t1.b or e not in (t1.e,b,19)),t1.a) then d else t1.a end FROM t1 WHERE  -b>=(select max(19) from t1)}
+} {}
+do_test randexpr-2.1379 {
+  db eval {SELECT case +c when 19*t1.b*coalesce((select t1.b-(19* -case when (coalesce((select t1.a from t1 where c>=e or t1.a not in (t1.c,e,t1.f)),t1.b)+19<=t1.a) then ((b)) when d>=b or d not between 19 and t1.e then t1.c else t1.b end-t1.a*f) from t1 where 13 between t1.f and t1.b or e not in (t1.e,b,19)),t1.a) then d else t1.a end FROM t1 WHERE NOT ( -b>=(select max(19) from t1))}
+} {100}
+do_test randexpr-2.1380 {
+  db eval {SELECT d+(abs(case t1.e when e*(abs(17)/abs(b)) then f else case when not not 13=c then coalesce((select t1.b from t1 where ((e-11 in (select 19 from t1 union select 17 from t1))) or f>=f),d) else case when c in (t1.a,t1.c,d) then t1.e when  -11 in (t1.a,e,t1.d) then t1.a else 19 end end-t1.e end*19)/abs(t1.c))-t1.e+d*t1.f FROM t1 WHERE t1.d+t1.c*coalesce((select e from t1 where coalesce((select max(t1.f) from t1 where not f in (select abs(case min(case when a not between a and f then 17 when e>17 then t1.d else 13 end) when abs(case cast(avg(t1.a) AS integer) when  -min(t1.b) then count(distinct 17) else (count(distinct t1.a)) end)-count(distinct  -b) then count(distinct d) else max(t1.f) end)+count(*)*max(e) from t1 union select (cast(avg(t1.c) AS integer)) from t1)),b*case 19 when t1.a then 11 else e end)<=f),17)=c}
+} {}
+do_test randexpr-2.1381 {
+  db eval {SELECT d+(abs(case t1.e when e*(abs(17)/abs(b)) then f else case when not not 13=c then coalesce((select t1.b from t1 where ((e-11 in (select 19 from t1 union select 17 from t1))) or f>=f),d) else case when c in (t1.a,t1.c,d) then t1.e when  -11 in (t1.a,e,t1.d) then t1.a else 19 end end-t1.e end*19)/abs(t1.c))-t1.e+d*t1.f FROM t1 WHERE NOT (t1.d+t1.c*coalesce((select e from t1 where coalesce((select max(t1.f) from t1 where not f in (select abs(case min(case when a not between a and f then 17 when e>17 then t1.d else 13 end) when abs(case cast(avg(t1.a) AS integer) when  -min(t1.b) then count(distinct 17) else (count(distinct t1.a)) end)-count(distinct  -b) then count(distinct d) else max(t1.f) end)+count(*)*max(e) from t1 union select (cast(avg(t1.c) AS integer)) from t1)),b*case 19 when t1.a then 11 else e end)<=f),17)=c)}
+} {239900}
+do_test randexpr-2.1382 {
+  db eval {SELECT case when ~t1.b=t1.b-coalesce((select 17 from t1 where t1.d-a>=(abs(case when c*11 between 19+(select cast(avg(13*b) AS integer) from t1) and case t1.e-t1.f when t1.a then 11 else a end then 19 else 17 end-c+a)/abs(t1.a))),e) then (f) when exists(select 1 from t1 where (11) in (c,t1.c,t1.b)) then f else 19 end*t1.f FROM t1 WHERE case 19 when t1.b then b*case t1.a when +t1.f then e else 17+t1.a end-11++(select ~~abs(~count(*))+count(distinct 13) from t1)*t1.b-t1.c- -a else 17 end>=t1.e}
+} {}
+do_test randexpr-2.1383 {
+  db eval {SELECT case when ~t1.b=t1.b-coalesce((select 17 from t1 where t1.d-a>=(abs(case when c*11 between 19+(select cast(avg(13*b) AS integer) from t1) and case t1.e-t1.f when t1.a then 11 else a end then 19 else 17 end-c+a)/abs(t1.a))),e) then (f) when exists(select 1 from t1 where (11) in (c,t1.c,t1.b)) then f else 19 end*t1.f FROM t1 WHERE NOT (case 19 when t1.b then b*case t1.a when +t1.f then e else 17+t1.a end-11++(select ~~abs(~count(*))+count(distinct 13) from t1)*t1.b-t1.c- -a else 17 end>=t1.e)}
+} {11400}
+do_test randexpr-2.1384 {
+  db eval {SELECT case when t1.a<=e and d*(t1.d)+t1.d++a-t1.f-a<=e or c not between b and d and 19 not between t1.e and 11 or  -t1.b in (select b from t1 union select 17 from t1) and t1.d<>t1.e or t1.d in (select t1.c from t1 union select t1.d from t1) then t1.e else 17 end+f+t1.b FROM t1 WHERE t1.c*~case 19+coalesce((select 19 from t1 where e>11-d),t1.e) when coalesce((select max(11) from t1 where not t1.f in (select ~abs(cast(avg(coalesce((select max(b+f) from t1 where  -f=(t1.b) and a between t1.c and t1.b),a)) AS integer))+ -count(distinct t1.b)- -max(f)*max((f)) from t1 union select min(t1.e) from t1) or a in (select +d*d from t1 union select t1.c from t1)),t1.e) then t1.d else t1.c end*t1.b<t1.b}
+} {1300}
+do_test randexpr-2.1385 {
+  db eval {SELECT case when t1.a<=e and d*(t1.d)+t1.d++a-t1.f-a<=e or c not between b and d and 19 not between t1.e and 11 or  -t1.b in (select b from t1 union select 17 from t1) and t1.d<>t1.e or t1.d in (select t1.c from t1 union select t1.d from t1) then t1.e else 17 end+f+t1.b FROM t1 WHERE NOT (t1.c*~case 19+coalesce((select 19 from t1 where e>11-d),t1.e) when coalesce((select max(11) from t1 where not t1.f in (select ~abs(cast(avg(coalesce((select max(b+f) from t1 where  -f=(t1.b) and a between t1.c and t1.b),a)) AS integer))+ -count(distinct t1.b)- -max(f)*max((f)) from t1 union select min(t1.e) from t1) or a in (select +d*d from t1 union select t1.c from t1)),t1.e) then t1.d else t1.c end*t1.b<t1.b)}
+} {}
+do_test randexpr-2.1386 {
+  db eval {SELECT coalesce((select 17 from t1 where (~f=(abs(coalesce((select t1.d from t1 where case (select count(distinct c | 13)- -(cast(avg(11) AS integer)) from t1)+coalesce((select 19 from t1 where d in (select t1.c from t1 union select 17 from t1)),t1.f) when e then t1.c else t1.d end*d<=19 and not exists(select 1 from t1 where (e)<>b)),e)-13)/abs(t1.e))+17)),t1.a)*t1.d+b FROM t1 WHERE not exists(select 1 from t1 where t1.b=case 19 when f then d+case when t1.c not between 13 and d | (select abs((min(17) | (min(t1.f)))) from t1) and coalesce((select max(11*19) from t1 where not exists(select 1 from t1 where (e>=t1.b))),11) not in (t1.c,19,t1.c) or t1.a in (select count(*) from t1 union select max(c)+cast(avg(11) AS integer) from t1) and (c) not between t1.a and t1.d and t1.b between 11 and a then t1.d else c end else (t1.f) end)}
+} {40200}
+do_test randexpr-2.1387 {
+  db eval {SELECT coalesce((select 17 from t1 where (~f=(abs(coalesce((select t1.d from t1 where case (select count(distinct c | 13)- -(cast(avg(11) AS integer)) from t1)+coalesce((select 19 from t1 where d in (select t1.c from t1 union select 17 from t1)),t1.f) when e then t1.c else t1.d end*d<=19 and not exists(select 1 from t1 where (e)<>b)),e)-13)/abs(t1.e))+17)),t1.a)*t1.d+b FROM t1 WHERE NOT (not exists(select 1 from t1 where t1.b=case 19 when f then d+case when t1.c not between 13 and d | (select abs((min(17) | (min(t1.f)))) from t1) and coalesce((select max(11*19) from t1 where not exists(select 1 from t1 where (e>=t1.b))),11) not in (t1.c,19,t1.c) or t1.a in (select count(*) from t1 union select max(c)+cast(avg(11) AS integer) from t1) and (c) not between t1.a and t1.d and t1.b between 11 and a then t1.d else c end else (t1.f) end))}
+} {}
+do_test randexpr-2.1388 {
+  db eval {SELECT coalesce((select 17 from t1 where (~f=(abs(coalesce((select t1.d from t1 where case (select count(distinct c & 13)- -(cast(avg(11) AS integer)) from t1)+coalesce((select 19 from t1 where d in (select t1.c from t1 union select 17 from t1)),t1.f) when e then t1.c else t1.d end*d<=19 and not exists(select 1 from t1 where (e)<>b)),e)-13)/abs(t1.e))+17)),t1.a)*t1.d+b FROM t1 WHERE not exists(select 1 from t1 where t1.b=case 19 when f then d+case when t1.c not between 13 and d | (select abs((min(17) | (min(t1.f)))) from t1) and coalesce((select max(11*19) from t1 where not exists(select 1 from t1 where (e>=t1.b))),11) not in (t1.c,19,t1.c) or t1.a in (select count(*) from t1 union select max(c)+cast(avg(11) AS integer) from t1) and (c) not between t1.a and t1.d and t1.b between 11 and a then t1.d else c end else (t1.f) end)}
+} {40200}
+do_test randexpr-2.1389 {
+  db eval {SELECT coalesce((select max(t1.f+19+case  -d when t1.f then t1.e else e end+case when +d in (select case when exists(select 1 from t1 where coalesce((select max( -17-d+t1.b-t1.d) from t1 where e not in (f,t1.e,11)),c) | t1.e>=c) then b else d end from t1 union select c from t1) then t1.b else d end-e*b+11) from t1 where f<>t1.b),d) FROM t1 WHERE (exists(select 1 from t1 where f> -t1.a*11 or e in (a-~ -t1.e,+a | e*case when coalesce((select t1.c from t1 where t1.f in (select (count(*)) from t1 union select ((count(*))) from t1)),a)-t1.e not in (e,t1.a,d) or 19 in (t1.b,t1.c,13) and c>19 then b*d else ( -t1.d) end-t1.a*t1.b*19,b)))}
+} {-98470}
+do_test randexpr-2.1390 {
+  db eval {SELECT coalesce((select max(t1.f+19+case  -d when t1.f then t1.e else e end+case when +d in (select case when exists(select 1 from t1 where coalesce((select max( -17-d+t1.b-t1.d) from t1 where e not in (f,t1.e,11)),c) | t1.e>=c) then b else d end from t1 union select c from t1) then t1.b else d end-e*b+11) from t1 where f<>t1.b),d) FROM t1 WHERE NOT ((exists(select 1 from t1 where f> -t1.a*11 or e in (a-~ -t1.e,+a | e*case when coalesce((select t1.c from t1 where t1.f in (select (count(*)) from t1 union select ((count(*))) from t1)),a)-t1.e not in (e,t1.a,d) or 19 in (t1.b,t1.c,13) and c>19 then b*d else ( -t1.d) end-t1.a*t1.b*19,b))))}
+} {}
+do_test randexpr-2.1391 {
+  db eval {SELECT coalesce((select max(t1.f+19+case  -d when t1.f then t1.e else e end+case when +d in (select case when exists(select 1 from t1 where coalesce((select max( -17-d+t1.b-t1.d) from t1 where e not in (f,t1.e,11)),c) & t1.e>=c) then b else d end from t1 union select c from t1) then t1.b else d end-e*b+11) from t1 where f<>t1.b),d) FROM t1 WHERE (exists(select 1 from t1 where f> -t1.a*11 or e in (a-~ -t1.e,+a | e*case when coalesce((select t1.c from t1 where t1.f in (select (count(*)) from t1 union select ((count(*))) from t1)),a)-t1.e not in (e,t1.a,d) or 19 in (t1.b,t1.c,13) and c>19 then b*d else ( -t1.d) end-t1.a*t1.b*19,b)))}
+} {-98670}
+do_test randexpr-2.1392 {
+  db eval {SELECT case t1.b* -(abs(e)/abs(d+b)) when ~a-11 then coalesce((select max(case when (~~19- -t1.d<t1.f or t1.e>=f) then +(abs(t1.c)/abs(t1.e)) when (t1.d>e or t1.a>=t1.a) then 19 else t1.a end*b-(19)-a-t1.c) from t1 where t1.f>=11),13) else b end FROM t1 WHERE (not exists(select 1 from t1 where t1.e<=t1.f) or c- -e*17 in (t1.c+c, -b-17, -coalesce((select case when +coalesce((select max(coalesce((select t1.f from t1 where t1.d in (select max(t1.d)-count(*) from t1 union select max( -t1.a) from t1)),e)+11) from t1 where ( -19)>=t1.a),t1.e)-13 not between t1.a and d then t1.d else 19 end+t1.b from t1 where t1.d<>19),11)))}
+} {}
+do_test randexpr-2.1393 {
+  db eval {SELECT case t1.b* -(abs(e)/abs(d+b)) when ~a-11 then coalesce((select max(case when (~~19- -t1.d<t1.f or t1.e>=f) then +(abs(t1.c)/abs(t1.e)) when (t1.d>e or t1.a>=t1.a) then 19 else t1.a end*b-(19)-a-t1.c) from t1 where t1.f>=11),13) else b end FROM t1 WHERE NOT ((not exists(select 1 from t1 where t1.e<=t1.f) or c- -e*17 in (t1.c+c, -b-17, -coalesce((select case when +coalesce((select max(coalesce((select t1.f from t1 where t1.d in (select max(t1.d)-count(*) from t1 union select max( -t1.a) from t1)),e)+11) from t1 where ( -19)>=t1.a),t1.e)-13 not between t1.a and d then t1.d else 19 end+t1.b from t1 where t1.d<>19),11))))}
+} {200}
+do_test randexpr-2.1394 {
+  db eval {SELECT (select case case min(d-t1.c)-max(t1.a) when ~count(distinct d+case  -f*t1.d+11 when b then b else b end)-min(c) then case +max(t1.a)*~abs(count(*)) when  -min(13) then max(17) else count(*) end else  -max(e) end when max(t1.a) then max(d) else max(17) end-count(distinct t1.b) from t1)-(d) FROM t1 WHERE +19 between b*11 and (select max(d-13) | ~+~+~((count(*)))*cast(avg(b) AS integer) from t1)+b}
+} {}
+do_test randexpr-2.1395 {
+  db eval {SELECT (select case case min(d-t1.c)-max(t1.a) when ~count(distinct d+case  -f*t1.d+11 when b then b else b end)-min(c) then case +max(t1.a)*~abs(count(*)) when  -min(13) then max(17) else count(*) end else  -max(e) end when max(t1.a) then max(d) else max(17) end-count(distinct t1.b) from t1)-(d) FROM t1 WHERE NOT (+19 between b*11 and (select max(d-13) | ~+~+~((count(*)))*cast(avg(b) AS integer) from t1)+b)}
+} {-384}
+do_test randexpr-2.1396 {
+  db eval {SELECT (abs(case when +a*t1.e+(abs(t1.e | 11+coalesce((select max(d) from t1 where (not not b<coalesce((select e from t1 where e<>19),17)) and t1.b>13 and d=t1.a and 13 in (d,t1.a,11)),t1.e)*d)/abs(11+t1.a-19))=c or b<>c then t1.e when b<>19 then 17 else b end)/abs(11)) FROM t1 WHERE (coalesce((select max(case when exists(select 1 from t1 where coalesce((select a from t1 where not 19-~(coalesce((select t1.d from t1 where d between e and 17),t1.a)-t1.a-17) in (t1.d,t1.e,19)),19)*11*d in (select d from t1 union select t1.b from t1)) then c when d between t1.a and  -19 then t1.e else 19 end-d*c) from t1 where (t1.f>=t1.c)),11)) not in (17,17,a)}
+} {45}
+do_test randexpr-2.1397 {
+  db eval {SELECT (abs(case when +a*t1.e+(abs(t1.e | 11+coalesce((select max(d) from t1 where (not not b<coalesce((select e from t1 where e<>19),17)) and t1.b>13 and d=t1.a and 13 in (d,t1.a,11)),t1.e)*d)/abs(11+t1.a-19))=c or b<>c then t1.e when b<>19 then 17 else b end)/abs(11)) FROM t1 WHERE NOT ((coalesce((select max(case when exists(select 1 from t1 where coalesce((select a from t1 where not 19-~(coalesce((select t1.d from t1 where d between e and 17),t1.a)-t1.a-17) in (t1.d,t1.e,19)),19)*11*d in (select d from t1 union select t1.b from t1)) then c when d between t1.a and  -19 then t1.e else 19 end-d*c) from t1 where (t1.f>=t1.c)),11)) not in (17,17,a))}
+} {}
+do_test randexpr-2.1398 {
+  db eval {SELECT (abs(case when +a*t1.e+(abs(t1.e & 11+coalesce((select max(d) from t1 where (not not b<coalesce((select e from t1 where e<>19),17)) and t1.b>13 and d=t1.a and 13 in (d,t1.a,11)),t1.e)*d)/abs(11+t1.a-19))=c or b<>c then t1.e when b<>19 then 17 else b end)/abs(11)) FROM t1 WHERE (coalesce((select max(case when exists(select 1 from t1 where coalesce((select a from t1 where not 19-~(coalesce((select t1.d from t1 where d between e and 17),t1.a)-t1.a-17) in (t1.d,t1.e,19)),19)*11*d in (select d from t1 union select t1.b from t1)) then c when d between t1.a and  -19 then t1.e else 19 end-d*c) from t1 where (t1.f>=t1.c)),11)) not in (17,17,a)}
+} {45}
+do_test randexpr-2.1399 {
+  db eval {SELECT 19+(t1.f)*case coalesce((select max(b) from t1 where not f not between coalesce((select (select (count(distinct t1.c))+ -max( -(f)) from t1)+t1.c from t1 where t1.c<=d),17)-c-19 and 17 or f<>13),case when not exists(select 1 from t1 where ((a)) between b and t1.f) then c when not ( -f not in (t1.b,t1.a,t1.c)) then  -t1.b else 19 end)-t1.d-t1.e when t1.e then 11 else 19 end FROM t1 WHERE not not exists(select 1 from t1 where not 11=c and a*e between coalesce((select max(t1.e) from t1 where f=t1.b*19+case when (e not in (t1.d,t1.d, -c) or t1.a<e or 13 in (select  - -count(*) from t1 union select min(17) from t1)) then t1.c when  -19 in (13,f,e) then  -t1.d else 17 end+t1.b*d),f)*d and t1.a)}
+} {}
+do_test randexpr-2.1400 {
+  db eval {SELECT 19+(t1.f)*case coalesce((select max(b) from t1 where not f not between coalesce((select (select (count(distinct t1.c))+ -max( -(f)) from t1)+t1.c from t1 where t1.c<=d),17)-c-19 and 17 or f<>13),case when not exists(select 1 from t1 where ((a)) between b and t1.f) then c when not ( -f not in (t1.b,t1.a,t1.c)) then  -t1.b else 19 end)-t1.d-t1.e when t1.e then 11 else 19 end FROM t1 WHERE NOT (not not exists(select 1 from t1 where not 11=c and a*e between coalesce((select max(t1.e) from t1 where f=t1.b*19+case when (e not in (t1.d,t1.d, -c) or t1.a<e or 13 in (select  - -count(*) from t1 union select min(17) from t1)) then t1.c when  -19 in (13,f,e) then  -t1.d else 17 end+t1.b*d),f)*d and t1.a))}
+} {11419}
+do_test randexpr-2.1401 {
+  db eval {SELECT coalesce((select max(19) from t1 where e-coalesce((select 13 from t1 where exists(select 1 from t1 where ((+(case when d*t1.b not in (t1.d,t1.f,e) then 11 else t1.c end))+19*11+e<=11))),19+t1.d) between t1.c and  -e and exists(select 1 from t1 where t1.d=c and exists(select 1 from t1 where exists(select 1 from t1 where t1.f=b and a in (19,t1.b,d) or t1.b=11) or t1.c>19) or t1.d=a)),19) FROM t1 WHERE t1.c not between f and d}
+} {19}
+do_test randexpr-2.1402 {
+  db eval {SELECT coalesce((select max(19) from t1 where e-coalesce((select 13 from t1 where exists(select 1 from t1 where ((+(case when d*t1.b not in (t1.d,t1.f,e) then 11 else t1.c end))+19*11+e<=11))),19+t1.d) between t1.c and  -e and exists(select 1 from t1 where t1.d=c and exists(select 1 from t1 where exists(select 1 from t1 where t1.f=b and a in (19,t1.b,d) or t1.b=11) or t1.c>19) or t1.d=a)),19) FROM t1 WHERE NOT (t1.c not between f and d)}
+} {}
+do_test randexpr-2.1403 {
+  db eval {SELECT case e when (t1.e+case when t1.e not between t1.c and case when d+coalesce((select t1.d+13+case case a when t1.a then t1.b else t1.c end when 17 then t1.b else f end+19 from t1 where exists(select 1 from t1 where t1.f< -17)),11)>=d then 13 else 13 end*(t1.c) then  -c when t1.e not between t1.f and t1.d then t1.a else ( - -t1.a) end-d) then t1.a else t1.d end FROM t1 WHERE t1.d between case when  -(t1.e-c)+a between  -+coalesce((select max(+t1.c) from t1 where (coalesce((select max(case when d>~t1.e then t1.c when t1.f in (select t1.d from t1 union select t1.e from t1) then (19) else t1.e end) from t1 where not exists(select 1 from t1 where t1.e< -(11))),t1.f) in (select min(t1.f) from t1 union select count(distinct 13) from t1))),t1.e) and t1.d then a when 13<=c then b else t1.c end-c and f}
+} {400}
+do_test randexpr-2.1404 {
+  db eval {SELECT case e when (t1.e+case when t1.e not between t1.c and case when d+coalesce((select t1.d+13+case case a when t1.a then t1.b else t1.c end when 17 then t1.b else f end+19 from t1 where exists(select 1 from t1 where t1.f< -17)),11)>=d then 13 else 13 end*(t1.c) then  -c when t1.e not between t1.f and t1.d then t1.a else ( - -t1.a) end-d) then t1.a else t1.d end FROM t1 WHERE NOT (t1.d between case when  -(t1.e-c)+a between  -+coalesce((select max(+t1.c) from t1 where (coalesce((select max(case when d>~t1.e then t1.c when t1.f in (select t1.d from t1 union select t1.e from t1) then (19) else t1.e end) from t1 where not exists(select 1 from t1 where t1.e< -(11))),t1.f) in (select min(t1.f) from t1 union select count(distinct 13) from t1))),t1.e) and t1.d then a when 13<=c then b else t1.c end-c and f)}
+} {}
+do_test randexpr-2.1405 {
+  db eval {SELECT (select abs(min(case when d not between coalesce((select max(case case t1.e when e-t1.f-a then case when (not exists(select 1 from t1 where coalesce((select max(t1.f) from t1 where 19<>17 and e not between  -13 and t1.a),t1.c)>=t1.e)) then (select abs(cast(avg(17) AS integer)) from t1) when c between e and 17 then (select (count(*)) from t1) else 11 end else 11 end when e then 11 else a end) from t1 where t1.b>t1.b),t1.e) and 13 then t1.d else 17 end))*min(b) |  -count(distinct t1.f) from t1) FROM t1 WHERE (e) in (select +t1.f from t1 union select t1.f+coalesce((select t1.d+e from t1 where t1.f not in (t1.b,t1.f,e)),(19))*case when t1.a<=a and t1.e<=e then t1.d else t1.c end from t1) and (t1.c not between 11 and e) or d in (select count(*)-cast(avg(t1.a) AS integer) from t1 union select max(19) from t1) and not t1.a not in (11,t1.d,b) or 17>=t1.a}
+} {}
+do_test randexpr-2.1406 {
+  db eval {SELECT (select abs(min(case when d not between coalesce((select max(case case t1.e when e-t1.f-a then case when (not exists(select 1 from t1 where coalesce((select max(t1.f) from t1 where 19<>17 and e not between  -13 and t1.a),t1.c)>=t1.e)) then (select abs(cast(avg(17) AS integer)) from t1) when c between e and 17 then (select (count(*)) from t1) else 11 end else 11 end when e then 11 else a end) from t1 where t1.b>t1.b),t1.e) and 13 then t1.d else 17 end))*min(b) |  -count(distinct t1.f) from t1) FROM t1 WHERE NOT ((e) in (select +t1.f from t1 union select t1.f+coalesce((select t1.d+e from t1 where t1.f not in (t1.b,t1.f,e)),(19))*case when t1.a<=a and t1.e<=e then t1.d else t1.c end from t1) and (t1.c not between 11 and e) or d in (select count(*)-cast(avg(t1.a) AS integer) from t1 union select max(19) from t1) and not t1.a not in (11,t1.d,b) or 17>=t1.a)}
+} {-1}
+do_test randexpr-2.1407 {
+  db eval {SELECT (select abs(min(case when d not between coalesce((select max(case case t1.e when e-t1.f-a then case when (not exists(select 1 from t1 where coalesce((select max(t1.f) from t1 where 19<>17 and e not between  -13 and t1.a),t1.c)>=t1.e)) then (select abs(cast(avg(17) AS integer)) from t1) when c between e and 17 then (select (count(*)) from t1) else 11 end else 11 end when e then 11 else a end) from t1 where t1.b>t1.b),t1.e) and 13 then t1.d else 17 end))*min(b) &  -count(distinct t1.f) from t1) FROM t1 WHERE NOT ((e) in (select +t1.f from t1 union select t1.f+coalesce((select t1.d+e from t1 where t1.f not in (t1.b,t1.f,e)),(19))*case when t1.a<=a and t1.e<=e then t1.d else t1.c end from t1) and (t1.c not between 11 and e) or d in (select count(*)-cast(avg(t1.a) AS integer) from t1 union select max(19) from t1) and not t1.a not in (11,t1.d,b) or 17>=t1.a)}
+} {80000}
+do_test randexpr-2.1408 {
+  db eval {SELECT case when ++coalesce((select (abs(a)/abs((select max((abs(13*f)/abs(t1.d))-t1.d*t1.e) from t1)))+b-t1.c+(select +(cast(avg(c) AS integer))*count(*) from t1)-t1.d-b*t1.e+19 from t1 where t1.c not between 11 and t1.d),19)<=t1.d then t1.d when not exists(select 1 from t1 where  -11=t1.a) then e else 11 end FROM t1 WHERE (coalesce((select max(coalesce((select a-19 | ~~t1.b from t1 where (abs(t1.f)/abs(b)) not between case when t1.d<=case when not exists(select 1 from t1 where 19<=t1.d) then case when t1.a<=c then f else t1.d end when d>=17 then t1.c else (b) end*t1.c then  - -t1.c when c<>t1.a then t1.f else 11 end and e),t1.e)-(t1.a)) from t1 where e<=a),17)<=t1.e) and t1.d=(f)}
+} {}
+do_test randexpr-2.1409 {
+  db eval {SELECT case when ++coalesce((select (abs(a)/abs((select max((abs(13*f)/abs(t1.d))-t1.d*t1.e) from t1)))+b-t1.c+(select +(cast(avg(c) AS integer))*count(*) from t1)-t1.d-b*t1.e+19 from t1 where t1.c not between 11 and t1.d),19)<=t1.d then t1.d when not exists(select 1 from t1 where  -11=t1.a) then e else 11 end FROM t1 WHERE NOT ((coalesce((select max(coalesce((select a-19 | ~~t1.b from t1 where (abs(t1.f)/abs(b)) not between case when t1.d<=case when not exists(select 1 from t1 where 19<=t1.d) then case when t1.a<=c then f else t1.d end when d>=17 then t1.c else (b) end*t1.c then  - -t1.c when c<>t1.a then t1.f else 11 end and e),t1.e)-(t1.a)) from t1 where e<=a),17)<=t1.e) and t1.d=(f))}
+} {400}
+do_test randexpr-2.1410 {
+  db eval {SELECT c*t1.c*(abs(case 11 when case when 11*11 not between b and t1.a then t1.d else  -coalesce((select t1.c from t1 where (not exists(select 1 from t1 where e*~13 not in (a*t1.c, -t1.a,case when 13=t1.c or 13 between 11 and a then  - -a when e<=t1.e then 13 else 11 end)))),t1.b+t1.b) end then t1.c else ((e)) end)/abs(t1.a))+t1.a-e-13 FROM t1 WHERE t1.a*13+case when (select count(distinct b++(select case count(distinct 19*(select  -+min((13*f))-count(distinct t1.c)-max(t1.e) | (count(distinct 11)) from t1)*(f)) when count(*) then min(a)+(cast(avg(t1.d) AS integer)) else  -min(17) end from t1) | t1.c-f) from t1)>t1.b then 19 else c end+17<c}
+} {}
+do_test randexpr-2.1411 {
+  db eval {SELECT c*t1.c*(abs(case 11 when case when 11*11 not between b and t1.a then t1.d else  -coalesce((select t1.c from t1 where (not exists(select 1 from t1 where e*~13 not in (a*t1.c, -t1.a,case when 13=t1.c or 13 between 11 and a then  - -a when e<=t1.e then 13 else 11 end)))),t1.b+t1.b) end then t1.c else ((e)) end)/abs(t1.a))+t1.a-e-13 FROM t1 WHERE NOT (t1.a*13+case when (select count(distinct b++(select case count(distinct 19*(select  -+min((13*f))-count(distinct t1.c)-max(t1.e) | (count(distinct 11)) from t1)*(f)) when count(*) then min(a)+(cast(avg(t1.d) AS integer)) else  -min(17) end from t1) | t1.c-f) from t1)>t1.b then 19 else c end+17<c)}
+} {449587}
+do_test randexpr-2.1412 {
+  db eval {SELECT ~coalesce((select b from t1 where b between e and case when t1.c+coalesce((select 11 from t1 where (a in (+d-11,t1.f-a,b)) and t1.c in (select t1.f from t1 union select c from t1) or b between 13 and t1.b and t1.e<(c) and a>=t1.c and e between d and t1.f),case when (13)<>(t1.e) then d when t1.a<=t1.e then 13 else d end) not in (17,b,17) then t1.d else t1.a end+a),t1.d) FROM t1 WHERE case t1.f when 11 then t1.e | f*case when ((select max(17) from t1) | 11>17+~coalesce((select max(t1.b) from t1 where (coalesce((select max(t1.e) from t1 where t1.e in (select (cast(avg( -t1.a) AS integer)) from t1 union select count(*) from t1)),a)) in (t1.f,a,t1.e)),f)+17) then t1.a when 19 in (t1.c, -e,11) or not exists(select 1 from t1 where t1.e between d and a) then 13 else 19 end+t1.f else 11 end<17}
+} {-401}
+do_test randexpr-2.1413 {
+  db eval {SELECT ~coalesce((select b from t1 where b between e and case when t1.c+coalesce((select 11 from t1 where (a in (+d-11,t1.f-a,b)) and t1.c in (select t1.f from t1 union select c from t1) or b between 13 and t1.b and t1.e<(c) and a>=t1.c and e between d and t1.f),case when (13)<>(t1.e) then d when t1.a<=t1.e then 13 else d end) not in (17,b,17) then t1.d else t1.a end+a),t1.d) FROM t1 WHERE NOT (case t1.f when 11 then t1.e | f*case when ((select max(17) from t1) | 11>17+~coalesce((select max(t1.b) from t1 where (coalesce((select max(t1.e) from t1 where t1.e in (select (cast(avg( -t1.a) AS integer)) from t1 union select count(*) from t1)),a)) in (t1.f,a,t1.e)),f)+17) then t1.a when 19 in (t1.c, -e,11) or not exists(select 1 from t1 where t1.e between d and a) then 13 else 19 end+t1.f else 11 end<17)}
+} {}
+do_test randexpr-2.1414 {
+  db eval {SELECT ~case when (a<> -++ -11) then e+case when c*t1.a<t1.d then 19 when not not 11>d then t1.a else b end else a end | case when not exists(select 1 from t1 where not exists(select 1 from t1 where 13 | d in (select a from t1 union select d from t1))) or t1.f not between c and 19 then +t1.a else c-a end-17*c FROM t1 WHERE (case when (case when b in (select 11*coalesce((select 11 from t1 where (d not between 13 and 13+17)),coalesce((select max(13) from t1 where t1.c in (select max(e) from t1 union select count(*) from t1)),t1.b)) from t1 union select  -t1.e from t1) then 13 when t1.f in ( -f, -(f),c) then 19 else f end in (select t1.a from t1 union select (t1.c) from t1)) then (abs(19)/abs(t1.b)) when (e in (b,11,19)) and t1.a<c then 19 else a end between d and 11)}
+} {}
+do_test randexpr-2.1415 {
+  db eval {SELECT ~case when (a<> -++ -11) then e+case when c*t1.a<t1.d then 19 when not not 11>d then t1.a else b end else a end | case when not exists(select 1 from t1 where not exists(select 1 from t1 where 13 | d in (select a from t1 union select d from t1))) or t1.f not between c and 19 then +t1.a else c-a end-17*c FROM t1 WHERE NOT ((case when (case when b in (select 11*coalesce((select 11 from t1 where (d not between 13 and 13+17)),coalesce((select max(13) from t1 where t1.c in (select max(e) from t1 union select count(*) from t1)),t1.b)) from t1 union select  -t1.e from t1) then 13 when t1.f in ( -f, -(f),c) then 19 else f end in (select t1.a from t1 union select (t1.c) from t1)) then (abs(19)/abs(t1.b)) when (e in (b,11,19)) and t1.a<c then 19 else a end between d and 11))}
+} {-645}
+do_test randexpr-2.1416 {
+  db eval {SELECT ~case when (a<> -++ -11) then e+case when c*t1.a<t1.d then 19 when not not 11>d then t1.a else b end else a end & case when not exists(select 1 from t1 where not exists(select 1 from t1 where 13 & d in (select a from t1 union select d from t1))) or t1.f not between c and 19 then +t1.a else c-a end-17*c FROM t1 WHERE NOT ((case when (case when b in (select 11*coalesce((select 11 from t1 where (d not between 13 and 13+17)),coalesce((select max(13) from t1 where t1.c in (select max(e) from t1 union select count(*) from t1)),t1.b)) from t1 union select  -t1.e from t1) then 13 when t1.f in ( -f, -(f),c) then 19 else f end in (select t1.a from t1 union select (t1.c) from t1)) then (abs(19)/abs(t1.b)) when (e in (b,11,19)) and t1.a<c then 19 else a end between d and 11))}
+} {-5056}
+do_test randexpr-2.1417 {
+  db eval {SELECT case when t1.d in (select case when exists(select 1 from t1 where 13>19) then  -d when ~c in (select min(e) from t1 union select cast(avg(case when c not between b and t1.a then b else 13-e+t1.e end) AS integer) from t1) then 13-coalesce((select max(coalesce((select max(19) from t1 where (17=a)),13)) from t1 where t1.a>=c),a) else t1.d end*(t1.c) from t1 union select (11) from t1) then a when b not in (e,t1.f,13) then t1.f else 13 end FROM t1 WHERE 13<>e or t1.a in (select f from t1 union select f from t1)}
+} {600}
+do_test randexpr-2.1418 {
+  db eval {SELECT case when t1.d in (select case when exists(select 1 from t1 where 13>19) then  -d when ~c in (select min(e) from t1 union select cast(avg(case when c not between b and t1.a then b else 13-e+t1.e end) AS integer) from t1) then 13-coalesce((select max(coalesce((select max(19) from t1 where (17=a)),13)) from t1 where t1.a>=c),a) else t1.d end*(t1.c) from t1 union select (11) from t1) then a when b not in (e,t1.f,13) then t1.f else 13 end FROM t1 WHERE NOT (13<>e or t1.a in (select f from t1 union select f from t1))}
+} {}
+do_test randexpr-2.1419 {
+  db eval {SELECT 17-(select case max(t1.f*~case when 17>=b then t1.d else t1.a end) when (count(distinct t1.c)) then count(distinct t1.d+~13*19) else  -min((select +case abs(count(*)) when abs(+count(*)) then ~case count(distinct a) when max(t1.c) then max(t1.c) else min(t1.f) end+max(17) else count(*) end from t1))- -cast(avg(f) AS integer)-min(a) end from t1) FROM t1 WHERE (select count(*) from t1) in (select abs(min(coalesce((select t1.d from t1 where coalesce((select max((t1.d)) from t1 where not b+t1.e*(select min(t1.a+t1.e) from t1)<=(abs(t1.d)/abs(t1.c))+t1.d),f*17+d+case when f between e and d and t1.c= -c then ~13 when b not between 11 and e then (11) else e end+t1.d)=13),t1.e))) from t1 union select (cast(avg(b) AS integer)) from t1)}
+} {}
+do_test randexpr-2.1420 {
+  db eval {SELECT 17-(select case max(t1.f*~case when 17>=b then t1.d else t1.a end) when (count(distinct t1.c)) then count(distinct t1.d+~13*19) else  -min((select +case abs(count(*)) when abs(+count(*)) then ~case count(distinct a) when max(t1.c) then max(t1.c) else min(t1.f) end+max(17) else count(*) end from t1))- -cast(avg(f) AS integer)-min(a) end from t1) FROM t1 WHERE NOT ((select count(*) from t1) in (select abs(min(coalesce((select t1.d from t1 where coalesce((select max((t1.d)) from t1 where not b+t1.e*(select min(t1.a+t1.e) from t1)<=(abs(t1.d)/abs(t1.c))+t1.d),f*17+d+case when f between e and d and t1.c= -c then ~13 when b not between 11 and e then (11) else e end+t1.d)=13),t1.e))) from t1 union select (cast(avg(b) AS integer)) from t1))}
+} {-1067}
+do_test randexpr-2.1421 {
+  db eval {SELECT case when +coalesce((select 19 from t1 where c between f and 13),t1.f)<>t1.c*t1.d then coalesce((select max(d) from t1 where t1.d between t1.a and t1.a),t1.f-f)-(13 | case when 11 in (select abs(max(t1.b)*cast(avg(t1.c) AS integer))+count(*) from t1 union select count(distinct b) from t1) and t1.a not in (b,t1.a,e) or a not in (e,19,(t1.e)) then t1.b else 17+t1.a end*t1.a) when 13 in (select e from t1 union select c from t1) then a else e end FROM t1 WHERE (select  -count(*) from t1)*case when not coalesce((select max(11) from t1 where t1.f<>a),t1.a)<>b then c else ~case when not 19+13-t1.d=t1.d or c>c or (t1.a=t1.d) or 13>=a then a when t1.c not between 13 and 17 then (abs(13+t1.d-t1.a)/abs(b)) else d end end+a | 11<=e}
+} {-20013}
+do_test randexpr-2.1422 {
+  db eval {SELECT case when +coalesce((select 19 from t1 where c between f and 13),t1.f)<>t1.c*t1.d then coalesce((select max(d) from t1 where t1.d between t1.a and t1.a),t1.f-f)-(13 | case when 11 in (select abs(max(t1.b)*cast(avg(t1.c) AS integer))+count(*) from t1 union select count(distinct b) from t1) and t1.a not in (b,t1.a,e) or a not in (e,19,(t1.e)) then t1.b else 17+t1.a end*t1.a) when 13 in (select e from t1 union select c from t1) then a else e end FROM t1 WHERE NOT ((select  -count(*) from t1)*case when not coalesce((select max(11) from t1 where t1.f<>a),t1.a)<>b then c else ~case when not 19+13-t1.d=t1.d or c>c or (t1.a=t1.d) or 13>=a then a when t1.c not between 13 and 17 then (abs(13+t1.d-t1.a)/abs(b)) else d end end+a | 11<=e)}
+} {}
+do_test randexpr-2.1423 {
+  db eval {SELECT case when +coalesce((select 19 from t1 where c between f and 13),t1.f)<>t1.c*t1.d then coalesce((select max(d) from t1 where t1.d between t1.a and t1.a),t1.f-f)-(13 & case when 11 in (select abs(max(t1.b)*cast(avg(t1.c) AS integer))+count(*) from t1 union select count(distinct b) from t1) and t1.a not in (b,t1.a,e) or a not in (e,19,(t1.e)) then t1.b else 17+t1.a end*t1.a) when 13 in (select e from t1 union select c from t1) then a else e end FROM t1 WHERE (select  -count(*) from t1)*case when not coalesce((select max(11) from t1 where t1.f<>a),t1.a)<>b then c else ~case when not 19+13-t1.d=t1.d or c>c or (t1.a=t1.d) or 13>=a then a when t1.c not between 13 and 17 then (abs(13+t1.d-t1.a)/abs(b)) else d end end+a | 11<=e}
+} {0}
+do_test randexpr-2.1424 {
+  db eval {SELECT case t1.d | t1.f+(e)+case when +t1.e-d*t1.a+17-b*(abs(t1.f)/abs( -a))-case when 19>=e then ~t1.a*case when t1.e>19 and t1.f<>d then t1.a else t1.d end | b*e else 17 end+t1.a=17 then t1.c else t1.b end when 17 then t1.b else t1.b end FROM t1 WHERE case when c<=13*t1.a then 11 else  -case when t1.f*e>= -((19)) then case when a>=t1.c then t1.d*e else b end else coalesce((select t1.b from t1 where 11+d-17-t1.d-t1.b not in (case d-17 when f then t1.d else t1.b end,e,t1.c)),t1.c) end*19 end<>b}
+} {200}
+do_test randexpr-2.1425 {
+  db eval {SELECT case t1.d | t1.f+(e)+case when +t1.e-d*t1.a+17-b*(abs(t1.f)/abs( -a))-case when 19>=e then ~t1.a*case when t1.e>19 and t1.f<>d then t1.a else t1.d end | b*e else 17 end+t1.a=17 then t1.c else t1.b end when 17 then t1.b else t1.b end FROM t1 WHERE NOT (case when c<=13*t1.a then 11 else  -case when t1.f*e>= -((19)) then case when a>=t1.c then t1.d*e else b end else coalesce((select t1.b from t1 where 11+d-17-t1.d-t1.b not in (case d-17 when f then t1.d else t1.b end,e,t1.c)),t1.c) end*19 end<>b)}
+} {}
+do_test randexpr-2.1426 {
+  db eval {SELECT case t1.d & t1.f+(e)+case when +t1.e-d*t1.a+17-b*(abs(t1.f)/abs( -a))-case when 19>=e then ~t1.a*case when t1.e>19 and t1.f<>d then t1.a else t1.d end & b*e else 17 end+t1.a=17 then t1.c else t1.b end when 17 then t1.b else t1.b end FROM t1 WHERE case when c<=13*t1.a then 11 else  -case when t1.f*e>= -((19)) then case when a>=t1.c then t1.d*e else b end else coalesce((select t1.b from t1 where 11+d-17-t1.d-t1.b not in (case d-17 when f then t1.d else t1.b end,e,t1.c)),t1.c) end*19 end<>b}
+} {200}
+do_test randexpr-2.1427 {
+  db eval {SELECT (coalesce((select max(~t1.d*19*t1.f) from t1 where (abs(17)/abs(t1.f-case when not exists(select 1 from t1 where case when a in (f,t1.a,c) then c when t1.a not in (13,t1.c,a) then e else t1.a end in (select abs(abs(min(t1.e))) from t1 union select cast(avg(11) AS integer) from t1)) or c<a then t1.f else a+d end-11))<>13 or t1.e in (e,t1.c,d)),t1.e) | 13)-d*e FROM t1 WHERE 11 in (select max(+(select max(d | b) from t1)*17-e) from t1 union select (cast(avg(+a-+((coalesce((select t1.e from t1 where exists(select 1 from t1 where (abs( -case when coalesce((select max(b-17) from t1 where not exists(select 1 from t1 where t1.f not between a and 11)),t1.c) in (select t1.d from t1 union select (17) from t1) then t1.c else ( - -t1.d) end)/abs(t1.f))+11>f)),b)))*19) AS integer))-count(distinct t1.f) from t1)}
+} {}
+do_test randexpr-2.1428 {
+  db eval {SELECT (coalesce((select max(~t1.d*19*t1.f) from t1 where (abs(17)/abs(t1.f-case when not exists(select 1 from t1 where case when a in (f,t1.a,c) then c when t1.a not in (13,t1.c,a) then e else t1.a end in (select abs(abs(min(t1.e))) from t1 union select cast(avg(11) AS integer) from t1)) or c<a then t1.f else a+d end-11))<>13 or t1.e in (e,t1.c,d)),t1.e) | 13)-d*e FROM t1 WHERE NOT (11 in (select max(+(select max(d | b) from t1)*17-e) from t1 union select (cast(avg(+a-+((coalesce((select t1.e from t1 where exists(select 1 from t1 where (abs( -case when coalesce((select max(b-17) from t1 where not exists(select 1 from t1 where t1.f not between a and 11)),t1.c) in (select t1.d from t1 union select (17) from t1) then t1.c else ( - -t1.d) end)/abs(t1.f))+11>f)),b)))*19) AS integer))-count(distinct t1.f) from t1))}
+} {-4771395}
+do_test randexpr-2.1429 {
+  db eval {SELECT (coalesce((select max(~t1.d*19*t1.f) from t1 where (abs(17)/abs(t1.f-case when not exists(select 1 from t1 where case when a in (f,t1.a,c) then c when t1.a not in (13,t1.c,a) then e else t1.a end in (select abs(abs(min(t1.e))) from t1 union select cast(avg(11) AS integer) from t1)) or c<a then t1.f else a+d end-11))<>13 or t1.e in (e,t1.c,d)),t1.e) & 13)-d*e FROM t1 WHERE NOT (11 in (select max(+(select max(d | b) from t1)*17-e) from t1 union select (cast(avg(+a-+((coalesce((select t1.e from t1 where exists(select 1 from t1 where (abs( -case when coalesce((select max(b-17) from t1 where not exists(select 1 from t1 where t1.f not between a and 11)),t1.c) in (select t1.d from t1 union select (17) from t1) then t1.c else ( - -t1.d) end)/abs(t1.f))+11>f)),b)))*19) AS integer))-count(distinct t1.f) from t1))}
+} {-199992}
+do_test randexpr-2.1430 {
+  db eval {SELECT coalesce((select t1.e from t1 where +~case when d-(abs(+t1.b)/abs( -19*t1.c-(select (abs( -cast(avg((abs(d)/abs(t1.d))) AS integer))) from t1)))+11<19 then t1.a-19-a-f when not (c in (case f when t1.a then 17 else 11 end-a,t1.d, -e)) then 17 else (t1.b) end<d),t1.d) FROM t1 WHERE exists(select 1 from t1 where f not between ~17+t1.e and coalesce((select max(t1.f) from t1 where 17+19=t1.c),case when case  -case when e not in (+c, - -19,t1.c) then 19 else (b)*t1.a end+t1.c when c then 19 else t1.d end<>(t1.b) then t1.d when (not exists(select 1 from t1 where t1.f<>t1.c)) then t1.b else 17 end-e)-19)}
+} {500}
+do_test randexpr-2.1431 {
+  db eval {SELECT coalesce((select t1.e from t1 where +~case when d-(abs(+t1.b)/abs( -19*t1.c-(select (abs( -cast(avg((abs(d)/abs(t1.d))) AS integer))) from t1)))+11<19 then t1.a-19-a-f when not (c in (case f when t1.a then 17 else 11 end-a,t1.d, -e)) then 17 else (t1.b) end<d),t1.d) FROM t1 WHERE NOT (exists(select 1 from t1 where f not between ~17+t1.e and coalesce((select max(t1.f) from t1 where 17+19=t1.c),case when case  -case when e not in (+c, - -19,t1.c) then 19 else (b)*t1.a end+t1.c when c then 19 else t1.d end<>(t1.b) then t1.d when (not exists(select 1 from t1 where t1.f<>t1.c)) then t1.b else 17 end-e)-19))}
+} {}
+do_test randexpr-2.1432 {
+  db eval {SELECT case when (abs(17)/abs(t1.e))<t1.b then t1.d when (select count(distinct coalesce((select d from t1 where exists(select 1 from t1 where 19<(select abs(max(t1.b)) from t1)*case when t1.e>=case when (exists(select 1 from t1 where not exists(select 1 from t1 where t1.f<>19))) then coalesce((select 11 from t1 where not exists(select 1 from t1 where t1.e not in ( -t1.d,(b),t1.d))),t1.a)+t1.f*11 else t1.a end then b else e end)),17)) from t1) not in (13,e,17) then t1.e else 11 end FROM t1 WHERE not (t1.e<>coalesce((select (case t1.c when (coalesce((select 19 from t1 where (case when not exists(select 1 from t1 where e not in (c,e,t1.f)) then t1.f | t1.a else t1.a end in (d,19,t1.a)) or t1.f<=t1.c),+13))*t1.b-t1.d then  -t1.c else b end) from t1 where 17<f), -e) or ((a)<=a)) or e<t1.e and  -(13) between 19 and 19}
+} {}
+do_test randexpr-2.1433 {
+  db eval {SELECT case when (abs(17)/abs(t1.e))<t1.b then t1.d when (select count(distinct coalesce((select d from t1 where exists(select 1 from t1 where 19<(select abs(max(t1.b)) from t1)*case when t1.e>=case when (exists(select 1 from t1 where not exists(select 1 from t1 where t1.f<>19))) then coalesce((select 11 from t1 where not exists(select 1 from t1 where t1.e not in ( -t1.d,(b),t1.d))),t1.a)+t1.f*11 else t1.a end then b else e end)),17)) from t1) not in (13,e,17) then t1.e else 11 end FROM t1 WHERE NOT (not (t1.e<>coalesce((select (case t1.c when (coalesce((select 19 from t1 where (case when not exists(select 1 from t1 where e not in (c,e,t1.f)) then t1.f | t1.a else t1.a end in (d,19,t1.a)) or t1.f<=t1.c),+13))*t1.b-t1.d then  -t1.c else b end) from t1 where 17<f), -e) or ((a)<=a)) or e<t1.e and  -(13) between 19 and 19)}
+} {400}
+do_test randexpr-2.1434 {
+  db eval {SELECT (select max(t1.c) from t1) | case when d=(abs(t1.d)/abs(t1.b)) then 19 else case b when a then b+17+c-t1.d+d-a*t1.c else e+t1.f+ -(select abs(~+count(distinct case when b<d and t1.f<> -19 then e when a in (17,d,t1.f) then  -t1.f else f end)+count(*)-max(t1.f) | count(distinct t1.a) | cast(avg(t1.c) AS integer)) |  -max(a) from t1) end end FROM t1 WHERE a | t1.c in (select f from t1 union select case  -t1.c when (abs(c | t1.c)/abs(17)) then (abs(t1.e)/abs(t1.c))+~19 else coalesce((select b from t1 where 11<=case d+coalesce((select max((select ( -(cast(avg(17) AS integer)))*max(t1.e)-max(t1.d)*cast(avg(t1.e) AS integer) from t1)) from t1 where (abs(case t1.f when 19 then b else t1.c end)/abs(t1.e))=b),d)*t1.f when  -t1.b then t1.d else 19 end),a) end+d+e from t1)}
+} {}
+do_test randexpr-2.1435 {
+  db eval {SELECT (select max(t1.c) from t1) | case when d=(abs(t1.d)/abs(t1.b)) then 19 else case b when a then b+17+c-t1.d+d-a*t1.c else e+t1.f+ -(select abs(~+count(distinct case when b<d and t1.f<> -19 then e when a in (17,d,t1.f) then  -t1.f else f end)+count(*)-max(t1.f) | count(distinct t1.a) | cast(avg(t1.c) AS integer)) |  -max(a) from t1) end end FROM t1 WHERE NOT (a | t1.c in (select f from t1 union select case  -t1.c when (abs(c | t1.c)/abs(17)) then (abs(t1.e)/abs(t1.c))+~19 else coalesce((select b from t1 where 11<=case d+coalesce((select max((select ( -(cast(avg(17) AS integer)))*max(t1.e)-max(t1.d)*cast(avg(t1.e) AS integer) from t1)) from t1 where (abs(case t1.f when 19 then b else t1.c end)/abs(t1.e))=b),d)*t1.f when  -t1.b then t1.d else 19 end),a) end+d+e from t1))}
+} {1391}
+do_test randexpr-2.1436 {
+  db eval {SELECT (select max(t1.c) from t1) & case when d=(abs(t1.d)/abs(t1.b)) then 19 else case b when a then b+17+c-t1.d+d-a*t1.c else e+t1.f+ -(select abs(~+count(distinct case when b<d and t1.f<> -19 then e when a in (17,d,t1.f) then  -t1.f else f end)+count(*)-max(t1.f) & count(distinct t1.a) & cast(avg(t1.c) AS integer)) &  -max(a) from t1) end end FROM t1 WHERE NOT (a | t1.c in (select f from t1 union select case  -t1.c when (abs(c | t1.c)/abs(17)) then (abs(t1.e)/abs(t1.c))+~19 else coalesce((select b from t1 where 11<=case d+coalesce((select max((select ( -(cast(avg(17) AS integer)))*max(t1.e)-max(t1.d)*cast(avg(t1.e) AS integer) from t1)) from t1 where (abs(case t1.f when 19 then b else t1.c end)/abs(t1.e))=b),d)*t1.f when  -t1.b then t1.d else 19 end),a) end+d+e from t1))}
+} {12}
+do_test randexpr-2.1437 {
+  db eval {SELECT case e*case when case coalesce((select max(13) from t1 where exists(select 1 from t1 where t1.a in (17,b,17))),t1.e)-t1.c when c then 19 else  -t1.d end+17 in (t1.d,c,11) or b<= -( - -a) then ~(a) when f in (select case case (max(e)) when count(*) then max(17) else (max(17)) end+count(distinct e)- -count(distinct d) when  -count(*) then  -count(distinct d) else ((min(t1.f))) end from t1 union select min( -19) from t1) then c else (13) end when b then t1.b else f end FROM t1 WHERE t1.b<t1.e}
+} {600}
+do_test randexpr-2.1438 {
+  db eval {SELECT case e*case when case coalesce((select max(13) from t1 where exists(select 1 from t1 where t1.a in (17,b,17))),t1.e)-t1.c when c then 19 else  -t1.d end+17 in (t1.d,c,11) or b<= -( - -a) then ~(a) when f in (select case case (max(e)) when count(*) then max(17) else (max(17)) end+count(distinct e)- -count(distinct d) when  -count(*) then  -count(distinct d) else ((min(t1.f))) end from t1 union select min( -19) from t1) then c else (13) end when b then t1.b else f end FROM t1 WHERE NOT (t1.b<t1.e)}
+} {}
+do_test randexpr-2.1439 {
+  db eval {SELECT case when d in (c,t1.a*19,+++case when exists(select 1 from t1 where case 17 when ~t1.b then f-e*~b-17+ -t1.c else c end<>17 or (t1.c in (19,c,a))) then 13 else c end-11+11*11) then t1.e when (11)<13 then  - -t1.c else t1.d end FROM t1 WHERE ((t1.c+17 not between case b*(11-coalesce((select max(t1.a) from t1 where ~case when (not t1.d*17=f) then t1.c-13+c else t1.d end+t1.c>=(b)),b)*e) when t1.f then b else f end-f- -17 and d or t1.d not in (t1.c,11,b)))}
+} {300}
+do_test randexpr-2.1440 {
+  db eval {SELECT case when d in (c,t1.a*19,+++case when exists(select 1 from t1 where case 17 when ~t1.b then f-e*~b-17+ -t1.c else c end<>17 or (t1.c in (19,c,a))) then 13 else c end-11+11*11) then t1.e when (11)<13 then  - -t1.c else t1.d end FROM t1 WHERE NOT (((t1.c+17 not between case b*(11-coalesce((select max(t1.a) from t1 where ~case when (not t1.d*17=f) then t1.c-13+c else t1.d end+t1.c>=(b)),b)*e) when t1.f then b else f end-f- -17 and d or t1.d not in (t1.c,11,b))))}
+} {}
+do_test randexpr-2.1441 {
+  db eval {SELECT t1.e*coalesce((select 17 from t1 where (19>(abs(case coalesce((select coalesce((select ~11 from t1 where b not between (13) and b),17) from t1 where 19 not between e+b+13 and  -t1.d),t1.f) when d then t1.e else t1.d end-e | f)/abs((e)))) and (t1.b<=a and 11<> - -t1.e) and t1.d<d),c) FROM t1 WHERE t1.a>t1.a | t1.c}
+} {}
+do_test randexpr-2.1442 {
+  db eval {SELECT t1.e*coalesce((select 17 from t1 where (19>(abs(case coalesce((select coalesce((select ~11 from t1 where b not between (13) and b),17) from t1 where 19 not between e+b+13 and  -t1.d),t1.f) when d then t1.e else t1.d end-e | f)/abs((e)))) and (t1.b<=a and 11<> - -t1.e) and t1.d<d),c) FROM t1 WHERE NOT (t1.a>t1.a | t1.c)}
+} {150000}
+do_test randexpr-2.1443 {
+  db eval {SELECT t1.e*coalesce((select 17 from t1 where (19>(abs(case coalesce((select coalesce((select ~11 from t1 where b not between (13) and b),17) from t1 where 19 not between e+b+13 and  -t1.d),t1.f) when d then t1.e else t1.d end-e & f)/abs((e)))) and (t1.b<=a and 11<> - -t1.e) and t1.d<d),c) FROM t1 WHERE NOT (t1.a>t1.a | t1.c)}
+} {150000}
+do_test randexpr-2.1444 {
+  db eval {SELECT ~coalesce((select max(t1.a) from t1 where ((t1.c)<=case 11-~t1.b++(t1.a+ -c)*t1.d-b | d when ~e then 17 else (abs(f)/abs(t1.f-t1.c)) end-19 | b-~t1.e*a-t1.b | +c)),b)*a FROM t1 WHERE not exists(select 1 from t1 where t1.a=((abs(coalesce((select coalesce((select max(+d) from t1 where not exists(select 1 from t1 where  -t1.d in (select  -max(13)-(min((t1.a))) from t1 union select count(distinct f) from t1)) and 11 in (select f from t1 union select 17 from t1) and a<>13),case when e>(11) then  -c else d end) from t1 where e<>11 and e<d),t1.d)+t1.b)/abs(17))* -19)-b or t1.e not in (a,11,t1.f) or not exists(select 1 from t1 where (exists(select 1 from t1 where  -11=b and (d)<>t1.e))))}
+} {}
+do_test randexpr-2.1445 {
+  db eval {SELECT ~coalesce((select max(t1.a) from t1 where ((t1.c)<=case 11-~t1.b++(t1.a+ -c)*t1.d-b | d when ~e then 17 else (abs(f)/abs(t1.f-t1.c)) end-19 | b-~t1.e*a-t1.b | +c)),b)*a FROM t1 WHERE NOT (not exists(select 1 from t1 where t1.a=((abs(coalesce((select coalesce((select max(+d) from t1 where not exists(select 1 from t1 where  -t1.d in (select  -max(13)-(min((t1.a))) from t1 union select count(distinct f) from t1)) and 11 in (select f from t1 union select 17 from t1) and a<>13),case when e>(11) then  -c else d end) from t1 where e<>11 and e<d),t1.d)+t1.b)/abs(17))* -19)-b or t1.e not in (a,11,t1.f) or not exists(select 1 from t1 where (exists(select 1 from t1 where  -11=b and (d)<>t1.e)))))}
+} {-20100}
+do_test randexpr-2.1446 {
+  db eval {SELECT ~coalesce((select max(t1.a) from t1 where ((t1.c)<=case 11-~t1.b++(t1.a+ -c)*t1.d-b & d when ~e then 17 else (abs(f)/abs(t1.f-t1.c)) end-19 & b-~t1.e*a-t1.b & +c)),b)*a FROM t1 WHERE NOT (not exists(select 1 from t1 where t1.a=((abs(coalesce((select coalesce((select max(+d) from t1 where not exists(select 1 from t1 where  -t1.d in (select  -max(13)-(min((t1.a))) from t1 union select count(distinct f) from t1)) and 11 in (select f from t1 union select 17 from t1) and a<>13),case when e>(11) then  -c else d end) from t1 where e<>11 and e<d),t1.d)+t1.b)/abs(17))* -19)-b or t1.e not in (a,11,t1.f) or not exists(select 1 from t1 where (exists(select 1 from t1 where  -11=b and (d)<>t1.e)))))}
+} {-20100}
+do_test randexpr-2.1447 {
+  db eval {SELECT (select count(distinct ~(((abs(b-a)/abs(case (select min((select case cast(avg(11+t1.e) AS integer) when case min( -~coalesce((select 13 from t1 where case t1.e when f then d else 17 end>=b),e)) when case max(t1.b) when (~ -count(*)+(( -max( -t1.a)))-(count(*))) then  -count(distinct (t1.c)) else min( -t1.e) end then count(*) else cast(avg( -(e)) AS integer) end then cast(avg(13) AS integer) else max(17) end from t1)) from t1) when 13 then c else (d) end))))) from t1)*t1.b FROM t1 WHERE not t1.c>=t1.b}
+} {}
+do_test randexpr-2.1448 {
+  db eval {SELECT (select count(distinct ~(((abs(b-a)/abs(case (select min((select case cast(avg(11+t1.e) AS integer) when case min( -~coalesce((select 13 from t1 where case t1.e when f then d else 17 end>=b),e)) when case max(t1.b) when (~ -count(*)+(( -max( -t1.a)))-(count(*))) then  -count(distinct (t1.c)) else min( -t1.e) end then count(*) else cast(avg( -(e)) AS integer) end then cast(avg(13) AS integer) else max(17) end from t1)) from t1) when 13 then c else (d) end))))) from t1)*t1.b FROM t1 WHERE NOT (not t1.c>=t1.b)}
+} {200}
+do_test randexpr-2.1449 {
+  db eval {SELECT coalesce((select max(coalesce((select max(13) from t1 where t1.b in (select e from t1 union select t1.e from t1)),t1.a)) from t1 where case when t1.d=case when d not between t1.a and case when not t1.c in ((t1.e),a,t1.c) then 19 | t1.c when a not between 19 and b then (19) else 13 end then t1.d else b end-11 and not t1.f=t1.c or 19 not in (t1.d,c, -t1.f) and 17< -t1.d then e when t1.b not between 17 and t1.b then f else d end<11),t1.c)*f FROM t1 WHERE t1.b<=(coalesce((select c from t1 where e in (t1.a,t1.c,case when 17 not between 19 and (19)-t1.a-(abs(coalesce((select d from t1 where case (t1.b+e*b*t1.c) when 13 then t1.b else 19 end<>19),17))/abs(a))*t1.a then 17 when exists(select 1 from t1 where ( -e)=a) or 13>=d then 17 else t1.f end)),c))}
+} {180000}
+do_test randexpr-2.1450 {
+  db eval {SELECT coalesce((select max(coalesce((select max(13) from t1 where t1.b in (select e from t1 union select t1.e from t1)),t1.a)) from t1 where case when t1.d=case when d not between t1.a and case when not t1.c in ((t1.e),a,t1.c) then 19 | t1.c when a not between 19 and b then (19) else 13 end then t1.d else b end-11 and not t1.f=t1.c or 19 not in (t1.d,c, -t1.f) and 17< -t1.d then e when t1.b not between 17 and t1.b then f else d end<11),t1.c)*f FROM t1 WHERE NOT (t1.b<=(coalesce((select c from t1 where e in (t1.a,t1.c,case when 17 not between 19 and (19)-t1.a-(abs(coalesce((select d from t1 where case (t1.b+e*b*t1.c) when 13 then t1.b else 19 end<>19),17))/abs(a))*t1.a then 17 when exists(select 1 from t1 where ( -e)=a) or 13>=d then 17 else t1.f end)),c)))}
+} {}
+do_test randexpr-2.1451 {
+  db eval {SELECT coalesce((select max(coalesce((select max(13) from t1 where t1.b in (select e from t1 union select t1.e from t1)),t1.a)) from t1 where case when t1.d=case when d not between t1.a and case when not t1.c in ((t1.e),a,t1.c) then 19 & t1.c when a not between 19 and b then (19) else 13 end then t1.d else b end-11 and not t1.f=t1.c or 19 not in (t1.d,c, -t1.f) and 17< -t1.d then e when t1.b not between 17 and t1.b then f else d end<11),t1.c)*f FROM t1 WHERE t1.b<=(coalesce((select c from t1 where e in (t1.a,t1.c,case when 17 not between 19 and (19)-t1.a-(abs(coalesce((select d from t1 where case (t1.b+e*b*t1.c) when 13 then t1.b else 19 end<>19),17))/abs(a))*t1.a then 17 when exists(select 1 from t1 where ( -e)=a) or 13>=d then 17 else t1.f end)),c))}
+} {180000}
+do_test randexpr-2.1452 {
+  db eval {SELECT (d)+(select  -abs(+cast(avg((select max((coalesce((select d from t1 where case when 13>=e then t1.c else 19 end>=d),coalesce((select 19-(select count(distinct 19 | (abs(19)/abs(~13))) from t1) | t1.d from t1 where coalesce((select max(11) from t1 where t1.a in (select t1.d from t1 union select c from t1)),19)>t1.d),e)+t1.b))) from t1)) AS integer)+abs( -max(b))) from t1) FROM t1 WHERE c-t1.c not between t1.c and +case when +case  -case when 17 not in (17,(e),t1.c) then a else 19 end-13 when t1.e then b else 13 end>19 or 17 in (select b from t1 union select t1.c from t1) then case c when t1.c then d else c end when not t1.f in (select  -cast(avg(a) AS integer)*count(distinct (17))+min(f)* - - -cast(avg(b) AS integer) from t1 union select (count(*)) from t1) then d else a end}
+} {-500}
+do_test randexpr-2.1453 {
+  db eval {SELECT (d)+(select  -abs(+cast(avg((select max((coalesce((select d from t1 where case when 13>=e then t1.c else 19 end>=d),coalesce((select 19-(select count(distinct 19 | (abs(19)/abs(~13))) from t1) | t1.d from t1 where coalesce((select max(11) from t1 where t1.a in (select t1.d from t1 union select c from t1)),19)>t1.d),e)+t1.b))) from t1)) AS integer)+abs( -max(b))) from t1) FROM t1 WHERE NOT (c-t1.c not between t1.c and +case when +case  -case when 17 not in (17,(e),t1.c) then a else 19 end-13 when t1.e then b else 13 end>19 or 17 in (select b from t1 union select t1.c from t1) then case c when t1.c then d else c end when not t1.f in (select  -cast(avg(a) AS integer)*count(distinct (17))+min(f)* - - -cast(avg(b) AS integer) from t1 union select (count(*)) from t1) then d else a end)}
+} {}
+do_test randexpr-2.1454 {
+  db eval {SELECT (d)+(select  -abs(+cast(avg((select max((coalesce((select d from t1 where case when 13>=e then t1.c else 19 end>=d),coalesce((select 19-(select count(distinct 19 & (abs(19)/abs(~13))) from t1) & t1.d from t1 where coalesce((select max(11) from t1 where t1.a in (select t1.d from t1 union select c from t1)),19)>t1.d),e)+t1.b))) from t1)) AS integer)+abs( -max(b))) from t1) FROM t1 WHERE c-t1.c not between t1.c and +case when +case  -case when 17 not in (17,(e),t1.c) then a else 19 end-13 when t1.e then b else 13 end>19 or 17 in (select b from t1 union select t1.c from t1) then case c when t1.c then d else c end when not t1.f in (select  -cast(avg(a) AS integer)*count(distinct (17))+min(f)* - - -cast(avg(b) AS integer) from t1 union select (count(*)) from t1) then d else a end}
+} {-500}
+do_test randexpr-2.1455 {
+  db eval {SELECT case when 19 in (case when coalesce((select max(case when e*t1.b in (coalesce((select t1.a from t1 where (abs(f)/abs(coalesce((select f from t1 where t1.f in (a,b,t1.d)),13))) in (b,b,11)),c),t1.a,17) then b else d end) from t1 where f>=13 and a>=17 and not exists(select 1 from t1 where (b<>f))), -t1.c) between d and 11 then d else t1.f end,t1.c,11) then 13 else 17 end FROM t1 WHERE t1.d in (select (abs(t1.a)/abs(t1.f)) from t1 union select e from t1) and ((b*coalesce((select  -11 from t1 where (coalesce((select max( -t1.e+ -coalesce((select d from t1 where t1.c<= - -t1.d),t1.c)) from t1 where b in (select  -count(distinct d)+count(distinct d)- -((min(e))) from t1 union select count(*) from t1)),(t1.e))-19*d<>t1.e)),a)*t1.f)=b)}
+} {}
+do_test randexpr-2.1456 {
+  db eval {SELECT case when 19 in (case when coalesce((select max(case when e*t1.b in (coalesce((select t1.a from t1 where (abs(f)/abs(coalesce((select f from t1 where t1.f in (a,b,t1.d)),13))) in (b,b,11)),c),t1.a,17) then b else d end) from t1 where f>=13 and a>=17 and not exists(select 1 from t1 where (b<>f))), -t1.c) between d and 11 then d else t1.f end,t1.c,11) then 13 else 17 end FROM t1 WHERE NOT (t1.d in (select (abs(t1.a)/abs(t1.f)) from t1 union select e from t1) and ((b*coalesce((select  -11 from t1 where (coalesce((select max( -t1.e+ -coalesce((select d from t1 where t1.c<= - -t1.d),t1.c)) from t1 where b in (select  -count(distinct d)+count(distinct d)- -((min(e))) from t1 union select count(*) from t1)),(t1.e))-19*d<>t1.e)),a)*t1.f)=b))}
+} {17}
+do_test randexpr-2.1457 {
+  db eval {SELECT coalesce((select max((select count(*) from t1)) from t1 where coalesce((select max(t1.a-coalesce((select t1.d+case when exists(select 1 from t1 where exists(select 1 from t1 where t1.f between t1.a and f)) or d | b between 19 and 19 then f+17 else (t1.b) end from t1 where t1.e not between  -t1.d and (19)),(17))) from t1 where not exists(select 1 from t1 where 19 between t1.b and 13 or t1.b>t1.c) or 19>=19),b) between 13 and f), -t1.a) FROM t1 WHERE exists(select 1 from t1 where +t1.f+t1.e<(abs(t1.b)/abs( -f*e))) or case t1.c when case when 19 not between 17 and case when t1.e<>e then t1.b when not exists(select 1 from t1 where coalesce((select max(b) from t1 where (e<t1.a)),e)>t1.d or (t1.d<>t1.e)) then t1.c else 17 end then t1.c when e<>b then 17 else e end then t1.d else t1.e end between d and b}
+} {}
+do_test randexpr-2.1458 {
+  db eval {SELECT coalesce((select max((select count(*) from t1)) from t1 where coalesce((select max(t1.a-coalesce((select t1.d+case when exists(select 1 from t1 where exists(select 1 from t1 where t1.f between t1.a and f)) or d | b between 19 and 19 then f+17 else (t1.b) end from t1 where t1.e not between  -t1.d and (19)),(17))) from t1 where not exists(select 1 from t1 where 19 between t1.b and 13 or t1.b>t1.c) or 19>=19),b) between 13 and f), -t1.a) FROM t1 WHERE NOT (exists(select 1 from t1 where +t1.f+t1.e<(abs(t1.b)/abs( -f*e))) or case t1.c when case when 19 not between 17 and case when t1.e<>e then t1.b when not exists(select 1 from t1 where coalesce((select max(b) from t1 where (e<t1.a)),e)>t1.d or (t1.d<>t1.e)) then t1.c else 17 end then t1.c when e<>b then 17 else e end then t1.d else t1.e end between d and b)}
+} {-100}
+do_test randexpr-2.1459 {
+  db eval {SELECT coalesce((select max((select count(*) from t1)) from t1 where coalesce((select max(t1.a-coalesce((select t1.d+case when exists(select 1 from t1 where exists(select 1 from t1 where t1.f between t1.a and f)) or d & b between 19 and 19 then f+17 else (t1.b) end from t1 where t1.e not between  -t1.d and (19)),(17))) from t1 where not exists(select 1 from t1 where 19 between t1.b and 13 or t1.b>t1.c) or 19>=19),b) between 13 and f), -t1.a) FROM t1 WHERE NOT (exists(select 1 from t1 where +t1.f+t1.e<(abs(t1.b)/abs( -f*e))) or case t1.c when case when 19 not between 17 and case when t1.e<>e then t1.b when not exists(select 1 from t1 where coalesce((select max(b) from t1 where (e<t1.a)),e)>t1.d or (t1.d<>t1.e)) then t1.c else 17 end then t1.c when e<>b then 17 else e end then t1.d else t1.e end between d and b)}
+} {-100}
+do_test randexpr-2.1460 {
+  db eval {SELECT case when not case 11 when t1.e*coalesce((select max(t1.b) from t1 where (abs(t1.c)/abs(~11)) not between coalesce((select max((abs(a)/abs(c))) from t1 where t1.b>=t1.a or b= -e),t1.f) and e and c not in (t1.a,t1.f,t1.c) and not (a)<t1.b or t1.b not between b and t1.a),17)*11+b+f then f else 17 end not between t1.f and a then b else t1.a end FROM t1 WHERE not exists(select 1 from t1 where a in (select coalesce((select max(13) from t1 where t1.e not in (t1.d,case when t1.b not in ((select (count(distinct case when  -t1.a not between a and t1.f then t1.c when 13 not in (t1.a,t1.b,d) then f else 19 end)) from t1),b,t1.f) then c when 11 in (select min(a)+max(19) from t1 union select cast(avg(11) AS integer) from t1) and t1.c in (f,13,t1.e) or a>17 then c else a end | t1.b,a) or not (t1.d<11)),d) from t1 union select t1.a from t1) and f in (select b from t1 union select b from t1))}
+} {100}
+do_test randexpr-2.1461 {
+  db eval {SELECT case when not case 11 when t1.e*coalesce((select max(t1.b) from t1 where (abs(t1.c)/abs(~11)) not between coalesce((select max((abs(a)/abs(c))) from t1 where t1.b>=t1.a or b= -e),t1.f) and e and c not in (t1.a,t1.f,t1.c) and not (a)<t1.b or t1.b not between b and t1.a),17)*11+b+f then f else 17 end not between t1.f and a then b else t1.a end FROM t1 WHERE NOT (not exists(select 1 from t1 where a in (select coalesce((select max(13) from t1 where t1.e not in (t1.d,case when t1.b not in ((select (count(distinct case when  -t1.a not between a and t1.f then t1.c when 13 not in (t1.a,t1.b,d) then f else 19 end)) from t1),b,t1.f) then c when 11 in (select min(a)+max(19) from t1 union select cast(avg(11) AS integer) from t1) and t1.c in (f,13,t1.e) or a>17 then c else a end | t1.b,a) or not (t1.d<11)),d) from t1 union select t1.a from t1) and f in (select b from t1 union select b from t1)))}
+} {}
+do_test randexpr-2.1462 {
+  db eval {SELECT case when case when coalesce((select max(case when ((a<=case t1.a+t1.a when t1.d then  -c else b end or t1.b<>e)) then 17 else 19*19*a end*13) from t1 where d<>t1.d),d)<=a or 11<=t1.e then t1.c when 17<11 then 17 else e end<=t1.a then t1.d when e= -e then t1.d else 19 end FROM t1 WHERE t1.e<=t1.a or (abs(+a+coalesce((select max(t1.b) from t1 where (select ~count(distinct 17) from t1)-b in (select t1.b+t1.b from t1 union select 19 from t1)), -11))/abs(case when not exists(select 1 from t1 where t1.d not between 17 and c- -c+e) or t1.e>t1.f then t1.d when t1.d not in (17,e,d) then a else 17 end)) in (c,d,11)}
+} {}
+do_test randexpr-2.1463 {
+  db eval {SELECT case when case when coalesce((select max(case when ((a<=case t1.a+t1.a when t1.d then  -c else b end or t1.b<>e)) then 17 else 19*19*a end*13) from t1 where d<>t1.d),d)<=a or 11<=t1.e then t1.c when 17<11 then 17 else e end<=t1.a then t1.d when e= -e then t1.d else 19 end FROM t1 WHERE NOT (t1.e<=t1.a or (abs(+a+coalesce((select max(t1.b) from t1 where (select ~count(distinct 17) from t1)-b in (select t1.b+t1.b from t1 union select 19 from t1)), -11))/abs(case when not exists(select 1 from t1 where t1.d not between 17 and c- -c+e) or t1.e>t1.f then t1.d when t1.d not in (17,e,d) then a else 17 end)) in (c,d,11))}
+} {19}
+do_test randexpr-2.1464 {
+  db eval {SELECT ~case when t1.e<=t1.a then b else (11) end+(select  -((cast(avg(coalesce((select a from t1 where (select cast(avg(t1.d) AS integer) | case case min((t1.e)) when cast(avg(t1.b) AS integer) then max(t1.c) else max(19) end*count(*) when  -count(distinct e) then count(*) else max( - -17) end from t1) not between c and  -t1.e-f+f),11)-11) AS integer)))*max(e) from t1)+e* - -a-t1.d*e FROM t1 WHERE coalesce((select max(case when 11 between d and d then e | b else case (select (case count(distinct coalesce((select  -coalesce((select max(t1.f) from t1 where t1.b in (select 11 from t1 union select 19 from t1)),t1.e) from t1 where 13<>17),17)) when (max( -t1.e)) then max(17)+max(11) else ((count(*))) end)*(count(*)) from t1) when 11 then  -13+19 else t1.e end end) from t1 where ((t1.a not between d and  -t1.c))),t1.a)<11}
+} {}
+do_test randexpr-2.1465 {
+  db eval {SELECT ~case when t1.e<=t1.a then b else (11) end+(select  -((cast(avg(coalesce((select a from t1 where (select cast(avg(t1.d) AS integer) | case case min((t1.e)) when cast(avg(t1.b) AS integer) then max(t1.c) else max(19) end*count(*) when  -count(distinct e) then count(*) else max( - -17) end from t1) not between c and  -t1.e-f+f),11)-11) AS integer)))*max(e) from t1)+e* - -a-t1.d*e FROM t1 WHERE NOT (coalesce((select max(case when 11 between d and d then e | b else case (select (case count(distinct coalesce((select  -coalesce((select max(t1.f) from t1 where t1.b in (select 11 from t1 union select 19 from t1)),t1.e) from t1 where 13<>17),17)) when (max( -t1.e)) then max(17)+max(11) else ((count(*))) end)*(count(*)) from t1) when 11 then  -13+19 else t1.e end end) from t1 where ((t1.a not between d and  -t1.c))),t1.a)<11)}
+} {-194512}
+do_test randexpr-2.1466 {
+  db eval {SELECT ~case when t1.e<=t1.a then b else (11) end+(select  -((cast(avg(coalesce((select a from t1 where (select cast(avg(t1.d) AS integer) & case case min((t1.e)) when cast(avg(t1.b) AS integer) then max(t1.c) else max(19) end*count(*) when  -count(distinct e) then count(*) else max( - -17) end from t1) not between c and  -t1.e-f+f),11)-11) AS integer)))*max(e) from t1)+e* - -a-t1.d*e FROM t1 WHERE NOT (coalesce((select max(case when 11 between d and d then e | b else case (select (case count(distinct coalesce((select  -coalesce((select max(t1.f) from t1 where t1.b in (select 11 from t1 union select 19 from t1)),t1.e) from t1 where 13<>17),17)) when (max( -t1.e)) then max(17)+max(11) else ((count(*))) end)*(count(*)) from t1) when 11 then  -13+19 else t1.e end end) from t1 where ((t1.a not between d and  -t1.c))),t1.a)<11)}
+} {-194512}
+do_test randexpr-2.1467 {
+  db eval {SELECT t1.e*~13-t1.a-~case when (abs(t1.a)/abs(coalesce((select max(t1.a) from t1 where e not between f and e-t1.b+13),case when (a in (select ( -c) from t1 union select 11 from t1) or exists(select 1 from t1 where 11 between f and t1.f)) then t1.b-a else  -t1.e end)+13*t1.f)) | 13<t1.a then t1.f when (t1.a in (select 19 from t1 union select c from t1)) then a else  -19 end FROM t1 WHERE exists(select 1 from t1 where t1.c*coalesce((select f from t1 where  - -f+b-(select min(t1.b) from t1) not in (c,17-t1.b*t1.a,t1.c)),case when (select abs(count(*)) from t1)<> -19-a then (a)-coalesce((select max(case when a in (13,t1.b,11) then t1.b else (13) end) from t1 where not exists(select 1 from t1 where t1.b>=b)),t1.c) else  -13 end)*(a)<17)}
+} {}
+do_test randexpr-2.1468 {
+  db eval {SELECT t1.e*~13-t1.a-~case when (abs(t1.a)/abs(coalesce((select max(t1.a) from t1 where e not between f and e-t1.b+13),case when (a in (select ( -c) from t1 union select 11 from t1) or exists(select 1 from t1 where 11 between f and t1.f)) then t1.b-a else  -t1.e end)+13*t1.f)) | 13<t1.a then t1.f when (t1.a in (select 19 from t1 union select c from t1)) then a else  -19 end FROM t1 WHERE NOT (exists(select 1 from t1 where t1.c*coalesce((select f from t1 where  - -f+b-(select min(t1.b) from t1) not in (c,17-t1.b*t1.a,t1.c)),case when (select abs(count(*)) from t1)<> -19-a then (a)-coalesce((select max(case when a in (13,t1.b,11) then t1.b else (13) end) from t1 where not exists(select 1 from t1 where t1.b>=b)),t1.c) else  -13 end)*(a)<17))}
+} {-6499}
+do_test randexpr-2.1469 {
+  db eval {SELECT t1.e*~13-t1.a-~case when (abs(t1.a)/abs(coalesce((select max(t1.a) from t1 where e not between f and e-t1.b+13),case when (a in (select ( -c) from t1 union select 11 from t1) or exists(select 1 from t1 where 11 between f and t1.f)) then t1.b-a else  -t1.e end)+13*t1.f)) & 13<t1.a then t1.f when (t1.a in (select 19 from t1 union select c from t1)) then a else  -19 end FROM t1 WHERE NOT (exists(select 1 from t1 where t1.c*coalesce((select f from t1 where  - -f+b-(select min(t1.b) from t1) not in (c,17-t1.b*t1.a,t1.c)),case when (select abs(count(*)) from t1)<> -19-a then (a)-coalesce((select max(case when a in (13,t1.b,11) then t1.b else (13) end) from t1 where not exists(select 1 from t1 where t1.b>=b)),t1.c) else  -13 end)*(a)<17))}
+} {-6499}
+do_test randexpr-2.1470 {
+  db eval {SELECT coalesce((select max(f*b | case when f in (t1.b,t1.b*(select count(*) from t1)+(select  -count(*) from t1), -b) and +13<(abs( -~d-case when t1.a in (select  -f from t1 union select t1.c from t1) then (t1.a) when t1.a<e then t1.d else a end)/abs(t1.c)) then t1.b*19 else e end+t1.c | t1.d) from t1 where 13 not in (t1.e,13,c)),11)-11 FROM t1 WHERE b not between e-case when case 11 when t1.a then t1.e*17 else t1.c end in (select ~t1.a | b+(abs(f)/abs(case coalesce((select (select abs( -cast(avg(17) AS integer)) from t1) from t1 where not f=t1.b or 11>=a),coalesce((select 11 from t1 where 11 not between 19 and t1.c),t1.a))-19 when t1.e then t1.f else e end)) from t1 union select  -d from t1) then d when t1.f between 17 and d then t1.d else t1.d end and (f) or d<17}
+} {}
+do_test randexpr-2.1471 {
+  db eval {SELECT coalesce((select max(f*b | case when f in (t1.b,t1.b*(select count(*) from t1)+(select  -count(*) from t1), -b) and +13<(abs( -~d-case when t1.a in (select  -f from t1 union select t1.c from t1) then (t1.a) when t1.a<e then t1.d else a end)/abs(t1.c)) then t1.b*19 else e end+t1.c | t1.d) from t1 where 13 not in (t1.e,13,c)),11)-11 FROM t1 WHERE NOT (b not between e-case when case 11 when t1.a then t1.e*17 else t1.c end in (select ~t1.a | b+(abs(f)/abs(case coalesce((select (select abs( -cast(avg(17) AS integer)) from t1) from t1 where not f=t1.b or 11>=a),coalesce((select 11 from t1 where 11 not between 19 and t1.c),t1.a))-19 when t1.e then t1.f else e end)) from t1 union select  -d from t1) then d when t1.f between 17 and d then t1.d else t1.d end and (f) or d<17)}
+} {0}
+do_test randexpr-2.1472 {
+  db eval {SELECT coalesce((select max(f*b & case when f in (t1.b,t1.b*(select count(*) from t1)+(select  -count(*) from t1), -b) and +13<(abs( -~d-case when t1.a in (select  -f from t1 union select t1.c from t1) then (t1.a) when t1.a<e then t1.d else a end)/abs(t1.c)) then t1.b*19 else e end+t1.c & t1.d) from t1 where 13 not in (t1.e,13,c)),11)-11 FROM t1 WHERE NOT (b not between e-case when case 11 when t1.a then t1.e*17 else t1.c end in (select ~t1.a | b+(abs(f)/abs(case coalesce((select (select abs( -cast(avg(17) AS integer)) from t1) from t1 where not f=t1.b or 11>=a),coalesce((select 11 from t1 where 11 not between 19 and t1.c),t1.a))-19 when t1.e then t1.f else e end)) from t1 union select  -d from t1) then d when t1.f between 17 and d then t1.d else t1.d end and (f) or d<17)}
+} {0}
+do_test randexpr-2.1473 {
+  db eval {SELECT case when (t1.b+case when a in (select coalesce((select max(t1.a) from t1 where not exists(select 1 from t1 where 11=case e when (e) then t1.b else t1.c end or c in (t1.f,f,11))),t1.f) from t1 union select t1.d from t1) and t1.e<>e then t1.f when t1.a in (t1.d,a,13) then 17 else t1.d end not in (t1.f,t1.d,17)) or c<> -19 then b when f<t1.c and t1.b in (e,11,t1.f) then t1.b-t1.c else  - -d end FROM t1 WHERE t1.f- -t1.d in (select case a when 13+coalesce((select coalesce((select coalesce((select case when b>a-e then b else 19 end from t1 where 11<>t1.b),a) from t1 where not 19 in (select max(19)*count(distinct a) from t1 union select cast(avg(11) AS integer) from t1)),11) from t1 where t1.e<>a),17) then d else 19 end from t1 union select f from t1) and c in (select count(distinct c) from t1 union select  -+max(d) | abs(count(*)) from t1)}
+} {}
+do_test randexpr-2.1474 {
+  db eval {SELECT case when (t1.b+case when a in (select coalesce((select max(t1.a) from t1 where not exists(select 1 from t1 where 11=case e when (e) then t1.b else t1.c end or c in (t1.f,f,11))),t1.f) from t1 union select t1.d from t1) and t1.e<>e then t1.f when t1.a in (t1.d,a,13) then 17 else t1.d end not in (t1.f,t1.d,17)) or c<> -19 then b when f<t1.c and t1.b in (e,11,t1.f) then t1.b-t1.c else  - -d end FROM t1 WHERE NOT (t1.f- -t1.d in (select case a when 13+coalesce((select coalesce((select coalesce((select case when b>a-e then b else 19 end from t1 where 11<>t1.b),a) from t1 where not 19 in (select max(19)*count(distinct a) from t1 union select cast(avg(11) AS integer) from t1)),11) from t1 where t1.e<>a),17) then d else 19 end from t1 union select f from t1) and c in (select count(distinct c) from t1 union select  -+max(d) | abs(count(*)) from t1))}
+} {200}
+do_test randexpr-2.1475 {
+  db eval {SELECT 17+coalesce((select max(19) from t1 where  -(select max(t1.d) from t1)>coalesce((select max((13)) from t1 where (coalesce((select 11 from t1 where  -e-t1.d-b-(abs(t1.b)/abs(11))*t1.f*b-e not between (f) and t1.e or 11 in (t1.b,t1.e, -e)),t1.a) in (select t1.b from t1 union select 19 from t1)) and exists(select 1 from t1 where 13<19)),t1.e)),e) FROM t1 WHERE t1.a<>t1.d or not exists(select 1 from t1 where t1.a>=coalesce((select case t1.e*d when  -case d*11 when t1.f then t1.e else t1.c end then 13*coalesce((select max(f*b*t1.e*t1.c) from t1 where t1.d in (select t1.c from t1 union select f from t1) or ((t1.e<f or t1.e=t1.b))),t1.d) | t1.b else d end from t1 where t1.f between t1.c and a),(13)))}
+} {517}
+do_test randexpr-2.1476 {
+  db eval {SELECT 17+coalesce((select max(19) from t1 where  -(select max(t1.d) from t1)>coalesce((select max((13)) from t1 where (coalesce((select 11 from t1 where  -e-t1.d-b-(abs(t1.b)/abs(11))*t1.f*b-e not between (f) and t1.e or 11 in (t1.b,t1.e, -e)),t1.a) in (select t1.b from t1 union select 19 from t1)) and exists(select 1 from t1 where 13<19)),t1.e)),e) FROM t1 WHERE NOT (t1.a<>t1.d or not exists(select 1 from t1 where t1.a>=coalesce((select case t1.e*d when  -case d*11 when t1.f then t1.e else t1.c end then 13*coalesce((select max(f*b*t1.e*t1.c) from t1 where t1.d in (select t1.c from t1 union select f from t1) or ((t1.e<f or t1.e=t1.b))),t1.d) | t1.b else d end from t1 where t1.f between t1.c and a),(13))))}
+} {}
+do_test randexpr-2.1477 {
+  db eval {SELECT case +a when (coalesce((select d*f*t1.d from t1 where t1.f between (case when e* -13<~ - -t1.e then e when 13>=t1.a then f-coalesce((select  -(select max((select min(a)-count(distinct c) from t1)) from t1) from t1 where a between f and d),c) else d end) and c or not exists(select 1 from t1 where 11<=13)),f)) then (e) else t1.b end FROM t1 WHERE not  -c between  -d+f | 17+t1.a and 11 or 11*e=(+case when c>=d then coalesce((select max(d-t1.f*f) from t1 where 11 in (select count(distinct t1.e) from t1 union select (~case count(*) when  -max(t1.f) then count(distinct t1.d) else (cast(avg(t1.f) AS integer)) end) from t1)),t1.c) else d end+t1.b-t1.c+b)+t1.c- -(13)}
+} {200}
+do_test randexpr-2.1478 {
+  db eval {SELECT case +a when (coalesce((select d*f*t1.d from t1 where t1.f between (case when e* -13<~ - -t1.e then e when 13>=t1.a then f-coalesce((select  -(select max((select min(a)-count(distinct c) from t1)) from t1) from t1 where a between f and d),c) else d end) and c or not exists(select 1 from t1 where 11<=13)),f)) then (e) else t1.b end FROM t1 WHERE NOT (not  -c between  -d+f | 17+t1.a and 11 or 11*e=(+case when c>=d then coalesce((select max(d-t1.f*f) from t1 where 11 in (select count(distinct t1.e) from t1 union select (~case count(*) when  -max(t1.f) then count(distinct t1.d) else (cast(avg(t1.f) AS integer)) end) from t1)),t1.c) else d end+t1.b-t1.c+b)+t1.c- -(13))}
+} {}
+do_test randexpr-2.1479 {
+  db eval {SELECT case when case when not exists(select 1 from t1 where a between +d-case when t1.c+e not between case 11 when +t1.b+11 then 19 else  -t1.f end+(11) and d and exists(select 1 from t1 where (a)>b) and not exists(select 1 from t1 where 11 in (a,11,t1.c)) then 19 else t1.a end and t1.a) then 17 when t1.d<>e then (t1.a) else e end-a<=e then c else 11 end FROM t1 WHERE coalesce((select a from t1 where not exists(select 1 from t1 where  -t1.c not between b and t1.a)),case when t1.d<=19-13 then coalesce((select max((select count(*)*cast(avg(~t1.a-e*~17+t1.e) AS integer) from t1)) from t1 where (exists(select 1 from t1 where + - -e-11*a-t1.d in (11,(t1.b),c)))),19+e)* -b else c end)>=17}
+} {300}
+do_test randexpr-2.1480 {
+  db eval {SELECT case when case when not exists(select 1 from t1 where a between +d-case when t1.c+e not between case 11 when +t1.b+11 then 19 else  -t1.f end+(11) and d and exists(select 1 from t1 where (a)>b) and not exists(select 1 from t1 where 11 in (a,11,t1.c)) then 19 else t1.a end and t1.a) then 17 when t1.d<>e then (t1.a) else e end-a<=e then c else 11 end FROM t1 WHERE NOT (coalesce((select a from t1 where not exists(select 1 from t1 where  -t1.c not between b and t1.a)),case when t1.d<=19-13 then coalesce((select max((select count(*)*cast(avg(~t1.a-e*~17+t1.e) AS integer) from t1)) from t1 where (exists(select 1 from t1 where + - -e-11*a-t1.d in (11,(t1.b),c)))),19+e)* -b else c end)>=17)}
+} {}
+do_test randexpr-2.1481 {
+  db eval {SELECT coalesce((select t1.c-~t1.e*19++case t1.b when coalesce((select 17 from t1 where t1.f not between t1.c-+coalesce((select max(a+ -t1.c) from t1 where (select count(distinct 11) from t1) in (select  -+case when a not between f and b or b>=t1.d then (t1.d) when a in (t1.e,b,13) then t1.d else t1.c end*a from t1 union select t1.f from t1)),f) and 17),a) | 17*c then 19 else d end+t1.c from t1 where e<>t1.b),19) FROM t1 WHERE not (t1.e not between ~17 and +t1.e*(~b)*e)}
+} {}
+do_test randexpr-2.1482 {
+  db eval {SELECT coalesce((select t1.c-~t1.e*19++case t1.b when coalesce((select 17 from t1 where t1.f not between t1.c-+coalesce((select max(a+ -t1.c) from t1 where (select count(distinct 11) from t1) in (select  -+case when a not between f and b or b>=t1.d then (t1.d) when a in (t1.e,b,13) then t1.d else t1.c end*a from t1 union select t1.f from t1)),f) and 17),a) | 17*c then 19 else d end+t1.c from t1 where e<>t1.b),19) FROM t1 WHERE NOT (not (t1.e not between ~17 and +t1.e*(~b)*e))}
+} {10519}
+do_test randexpr-2.1483 {
+  db eval {SELECT coalesce((select t1.c-~t1.e*19++case t1.b when coalesce((select 17 from t1 where t1.f not between t1.c-+coalesce((select max(a+ -t1.c) from t1 where (select count(distinct 11) from t1) in (select  -+case when a not between f and b or b>=t1.d then (t1.d) when a in (t1.e,b,13) then t1.d else t1.c end*a from t1 union select t1.f from t1)),f) and 17),a) & 17*c then 19 else d end+t1.c from t1 where e<>t1.b),19) FROM t1 WHERE NOT (not (t1.e not between ~17 and +t1.e*(~b)*e))}
+} {10519}
+do_test randexpr-2.1484 {
+  db eval {SELECT ~case when b<=(t1.c | (abs(d)/abs(a*f)))+case when (13*(t1.b) not in (19,b,t1.d)) and exists(select 1 from t1 where 19 between t1.d and 11) then (select case count(distinct t1.f) when +( -count(distinct c) | cast(avg(t1.d) AS integer)) then cast(avg(t1.c) AS integer) else min(f) end from t1) else 13 end*t1.c or exists(select 1 from t1 where  -f in (select e from t1 union select  -t1.a from t1)) then t1.d else t1.c end FROM t1 WHERE exists(select 1 from t1 where t1.c+b-t1.d between 11 and 17)}
+} {}
+do_test randexpr-2.1485 {
+  db eval {SELECT ~case when b<=(t1.c | (abs(d)/abs(a*f)))+case when (13*(t1.b) not in (19,b,t1.d)) and exists(select 1 from t1 where 19 between t1.d and 11) then (select case count(distinct t1.f) when +( -count(distinct c) | cast(avg(t1.d) AS integer)) then cast(avg(t1.c) AS integer) else min(f) end from t1) else 13 end*t1.c or exists(select 1 from t1 where  -f in (select e from t1 union select  -t1.a from t1)) then t1.d else t1.c end FROM t1 WHERE NOT (exists(select 1 from t1 where t1.c+b-t1.d between 11 and 17))}
+} {-401}
+do_test randexpr-2.1486 {
+  db eval {SELECT ~case when b<=(t1.c & (abs(d)/abs(a*f)))+case when (13*(t1.b) not in (19,b,t1.d)) and exists(select 1 from t1 where 19 between t1.d and 11) then (select case count(distinct t1.f) when +( -count(distinct c) & cast(avg(t1.d) AS integer)) then cast(avg(t1.c) AS integer) else min(f) end from t1) else 13 end*t1.c or exists(select 1 from t1 where  -f in (select e from t1 union select  -t1.a from t1)) then t1.d else t1.c end FROM t1 WHERE NOT (exists(select 1 from t1 where t1.c+b-t1.d between 11 and 17))}
+} {-401}
+do_test randexpr-2.1487 {
+  db eval {SELECT coalesce((select max(~coalesce((select 19+~coalesce((select (abs((19)*c+~t1.a-t1.a*19)/abs(case when t1.d<>t1.b then t1.f when 13<>19 then (11) else t1.c end)) from t1 where f= -t1.a or t1.d not between t1.d and  -f),t1.f) from t1 where not exists(select 1 from t1 where  -19 not between d and f)),d)*t1.a-f) from t1 where c not in (c,c,c)),t1.b) FROM t1 WHERE (coalesce((select max( -t1.d+19+11+coalesce((select a from t1 where 11 not between e and t1.d),t1.d)) from t1 where not ( -t1.f not between b and f) and t1.e in (b,11,f)),f)+t1.e<=19) or c>t1.d or e in (a,19,11) or t1.f>b or  -t1.f<=13 and a between 11 and t1.a}
+} {200}
+do_test randexpr-2.1488 {
+  db eval {SELECT coalesce((select max(~coalesce((select 19+~coalesce((select (abs((19)*c+~t1.a-t1.a*19)/abs(case when t1.d<>t1.b then t1.f when 13<>19 then (11) else t1.c end)) from t1 where f= -t1.a or t1.d not between t1.d and  -f),t1.f) from t1 where not exists(select 1 from t1 where  -19 not between d and f)),d)*t1.a-f) from t1 where c not in (c,c,c)),t1.b) FROM t1 WHERE NOT ((coalesce((select max( -t1.d+19+11+coalesce((select a from t1 where 11 not between e and t1.d),t1.d)) from t1 where not ( -t1.f not between b and f) and t1.e in (b,11,f)),f)+t1.e<=19) or c>t1.d or e in (a,19,11) or t1.f>b or  -t1.f<=13 and a between 11 and t1.a)}
+} {}
+do_test randexpr-2.1489 {
+  db eval {SELECT case t1.d when 17 then 11 | t1.a-17+13+t1.f*t1.e+t1.e-case when d | t1.e in (t1.b,t1.a,c) then  -13 else (b*19) end-(select cast(avg(coalesce((select a from t1 where e in (t1.f,t1.b,f)), -e)) AS integer) from t1)*d-11-t1.e-t1.a else t1.f end FROM t1 WHERE d*13 in (select abs(min(d)) from t1 union select cast(avg(d) AS integer) from t1)}
+} {}
+do_test randexpr-2.1490 {
+  db eval {SELECT case t1.d when 17 then 11 | t1.a-17+13+t1.f*t1.e+t1.e-case when d | t1.e in (t1.b,t1.a,c) then  -13 else (b*19) end-(select cast(avg(coalesce((select a from t1 where e in (t1.f,t1.b,f)), -e)) AS integer) from t1)*d-11-t1.e-t1.a else t1.f end FROM t1 WHERE NOT (d*13 in (select abs(min(d)) from t1 union select cast(avg(d) AS integer) from t1))}
+} {600}
+do_test randexpr-2.1491 {
+  db eval {SELECT case t1.d when 17 then 11 & t1.a-17+13+t1.f*t1.e+t1.e-case when d & t1.e in (t1.b,t1.a,c) then  -13 else (b*19) end-(select cast(avg(coalesce((select a from t1 where e in (t1.f,t1.b,f)), -e)) AS integer) from t1)*d-11-t1.e-t1.a else t1.f end FROM t1 WHERE NOT (d*13 in (select abs(min(d)) from t1 union select cast(avg(d) AS integer) from t1))}
+} {600}
+do_test randexpr-2.1492 {
+  db eval {SELECT coalesce((select max(19-(abs(t1.c)/abs( -13))-(select count(*)*abs(max(t1.a-b)) from t1)-t1.d) from t1 where (case coalesce((select max(~(select ~count(*) from t1)) from t1 where b=(abs(17)/abs(d))),11*case when not t1.c>=e or 17=c then d else 17*b end*t1.d) when 13 then 11 else t1.c end) in (select c from t1 union select t1.c from t1)),13) FROM t1 WHERE case t1.a*(select  -case count(distinct ~(case 13-+t1.d-f when d then c else (19) end)*19)* -max(19) |  -count(*)+abs(min(19)) | cast(avg(d) AS integer) when min(a) then count(distinct 11) else count(*) end from t1)*(abs(t1.a)/abs(11))-f-t1.b+(t1.f) when 11 then 17 else 19 end<>d}
+} {-504}
+do_test randexpr-2.1493 {
+  db eval {SELECT coalesce((select max(19-(abs(t1.c)/abs( -13))-(select count(*)*abs(max(t1.a-b)) from t1)-t1.d) from t1 where (case coalesce((select max(~(select ~count(*) from t1)) from t1 where b=(abs(17)/abs(d))),11*case when not t1.c>=e or 17=c then d else 17*b end*t1.d) when 13 then 11 else t1.c end) in (select c from t1 union select t1.c from t1)),13) FROM t1 WHERE NOT (case t1.a*(select  -case count(distinct ~(case 13-+t1.d-f when d then c else (19) end)*19)* -max(19) |  -count(*)+abs(min(19)) | cast(avg(d) AS integer) when min(a) then count(distinct 11) else count(*) end from t1)*(abs(t1.a)/abs(11))-f-t1.b+(t1.f) when 11 then 17 else 19 end<>d)}
+} {}
+do_test randexpr-2.1494 {
+  db eval {SELECT +(select abs( -abs(count(distinct case when (abs(t1.f)/abs(t1.a-t1.d)) in (select count(distinct 19) from t1 union select +abs(+ -cast(avg(c) AS integer)) from t1) then  -(f) else e end-17)) | case count(distinct b) when count(*) then cast(avg(13) AS integer) else ( -count(distinct d)) end-count(*)* - -cast(avg(a) AS integer)) from t1)+case when t1.f in (select d*b | t1.d from t1 union select d from t1) then t1.f when 19<>t1.e then t1.b else 11 end+11 FROM t1 WHERE f<a+t1.f}
+} {212}
+do_test randexpr-2.1495 {
+  db eval {SELECT +(select abs( -abs(count(distinct case when (abs(t1.f)/abs(t1.a-t1.d)) in (select count(distinct 19) from t1 union select +abs(+ -cast(avg(c) AS integer)) from t1) then  -(f) else e end-17)) | case count(distinct b) when count(*) then cast(avg(13) AS integer) else ( -count(distinct d)) end-count(*)* - -cast(avg(a) AS integer)) from t1)+case when t1.f in (select d*b | t1.d from t1 union select d from t1) then t1.f when 19<>t1.e then t1.b else 11 end+11 FROM t1 WHERE NOT (f<a+t1.f)}
+} {}
+do_test randexpr-2.1496 {
+  db eval {SELECT +(select abs( -abs(count(distinct case when (abs(t1.f)/abs(t1.a-t1.d)) in (select count(distinct 19) from t1 union select +abs(+ -cast(avg(c) AS integer)) from t1) then  -(f) else e end-17)) & case count(distinct b) when count(*) then cast(avg(13) AS integer) else ( -count(distinct d)) end-count(*)* - -cast(avg(a) AS integer)) from t1)+case when t1.f in (select d*b & t1.d from t1 union select d from t1) then t1.f when 19<>t1.e then t1.b else 11 end+11 FROM t1 WHERE f<a+t1.f}
+} {298}
+do_test randexpr-2.1497 {
+  db eval {SELECT case when e in (+(select ~(max(t1.f)-+count(distinct 11)) from t1)*t1.b+t1.c*a*t1.b+e,a,t1.c) and (19)<>17 or 17 between 13 and a and exists(select 1 from t1 where c not between t1.f and t1.d) then coalesce((select max(d) from t1 where t1.e<>19),17) else a end*(( -f))+t1.d FROM t1 WHERE exists(select 1 from t1 where exists(select 1 from t1 where t1.c between case when (a<a and not exists(select 1 from t1 where exists(select 1 from t1 where d<~t1.f-+t1.a or (abs(17)/abs(t1.c)) in (select 19 from t1 union select 11 from t1)))) then +e when d<>13 or b>=e or 19 between t1.d and  -t1.e then t1.f else f end and f) and c>((t1.c))) and not exists(select 1 from t1 where 17<t1.c)}
+} {}
+do_test randexpr-2.1498 {
+  db eval {SELECT case when e in (+(select ~(max(t1.f)-+count(distinct 11)) from t1)*t1.b+t1.c*a*t1.b+e,a,t1.c) and (19)<>17 or 17 between 13 and a and exists(select 1 from t1 where c not between t1.f and t1.d) then coalesce((select max(d) from t1 where t1.e<>19),17) else a end*(( -f))+t1.d FROM t1 WHERE NOT (exists(select 1 from t1 where exists(select 1 from t1 where t1.c between case when (a<a and not exists(select 1 from t1 where exists(select 1 from t1 where d<~t1.f-+t1.a or (abs(17)/abs(t1.c)) in (select 19 from t1 union select 11 from t1)))) then +e when d<>13 or b>=e or 19 between t1.d and  -t1.e then t1.f else f end and f) and c>((t1.c))) and not exists(select 1 from t1 where 17<t1.c))}
+} {-239600}
+do_test randexpr-2.1499 {
+  db eval {SELECT 17+11+d+t1.d | t1.c+(abs(case when 11 in (select count(distinct 11*+t1.d) from t1 union select ~cast(avg(t1.c) AS integer)*case (count(distinct 19)) when (cast(avg(t1.c) AS integer) | min(t1.a-f)) then cast(avg(a) AS integer) else cast(avg(t1.b) AS integer) end+max( - -d) from t1) then t1.a-13 when (11)>=13 then t1.e else t1.c end)/abs(19)) | (t1.d) FROM t1 WHERE d>=(case when ((t1.a)) between t1.f and a then case when 11 between 19-case when (~coalesce((select t1.e from t1 where d>t1.c and e<>t1.f),e))>=13 then t1.b when t1.d in (select (count(*)-min(19)) from t1 union select cast(avg(t1.e) AS integer) from t1) then 17 else (t1.d) end*t1.a and (13) then 11 when not exists(select 1 from t1 where not 19<>(t1.e) and t1.a between d and d and t1.c=a) then 17 else t1.a end-17 else e end)}
+} {}
+do_test randexpr-2.1500 {
+  db eval {SELECT 17+11+d+t1.d | t1.c+(abs(case when 11 in (select count(distinct 11*+t1.d) from t1 union select ~cast(avg(t1.c) AS integer)*case (count(distinct 19)) when (cast(avg(t1.c) AS integer) | min(t1.a-f)) then cast(avg(a) AS integer) else cast(avg(t1.b) AS integer) end+max( - -d) from t1) then t1.a-13 when (11)>=13 then t1.e else t1.c end)/abs(19)) | (t1.d) FROM t1 WHERE NOT (d>=(case when ((t1.a)) between t1.f and a then case when 11 between 19-case when (~coalesce((select t1.e from t1 where d>t1.c and e<>t1.f),e))>=13 then t1.b when t1.d in (select (count(*)-min(19)) from t1 union select cast(avg(t1.e) AS integer) from t1) then 17 else (t1.d) end*t1.a and (13) then 11 when not exists(select 1 from t1 where not 19<>(t1.e) and t1.a between d and d and t1.c=a) then 17 else t1.a end-17 else e end))}
+} {959}
+do_test randexpr-2.1501 {
+  db eval {SELECT 17+11+d+t1.d & t1.c+(abs(case when 11 in (select count(distinct 11*+t1.d) from t1 union select ~cast(avg(t1.c) AS integer)*case (count(distinct 19)) when (cast(avg(t1.c) AS integer) & min(t1.a-f)) then cast(avg(a) AS integer) else cast(avg(t1.b) AS integer) end+max( - -d) from t1) then t1.a-13 when (11)>=13 then t1.e else t1.c end)/abs(19)) & (t1.d) FROM t1 WHERE NOT (d>=(case when ((t1.a)) between t1.f and a then case when 11 between 19-case when (~coalesce((select t1.e from t1 where d>t1.c and e<>t1.f),e))>=13 then t1.b when t1.d in (select (count(*)-min(19)) from t1 union select cast(avg(t1.e) AS integer) from t1) then 17 else (t1.d) end*t1.a and (13) then 11 when not exists(select 1 from t1 where not 19<>(t1.e) and t1.a between d and d and t1.c=a) then 17 else t1.a end-17 else e end))}
+} {272}
+do_test randexpr-2.1502 {
+  db eval {SELECT coalesce((select 17 from t1 where ((abs(19)/abs(case when ((f+17<(d))) and (abs(t1.c)/abs((t1.b)))>11 then ~a+11 when (t1.f)>t1.d then 19 else c end))<>t1.b) or (b in (( -t1.d),b,e) and (t1.a)<>c) and (17) not in (t1.f,11,17) or (f) not between t1.c and  -t1.c),t1.a) FROM t1 WHERE 17 between  -t1.b+f-19 | 17 and t1.e+t1.c}
+} {}
+do_test randexpr-2.1503 {
+  db eval {SELECT coalesce((select 17 from t1 where ((abs(19)/abs(case when ((f+17<(d))) and (abs(t1.c)/abs((t1.b)))>11 then ~a+11 when (t1.f)>t1.d then 19 else c end))<>t1.b) or (b in (( -t1.d),b,e) and (t1.a)<>c) and (17) not in (t1.f,11,17) or (f) not between t1.c and  -t1.c),t1.a) FROM t1 WHERE NOT (17 between  -t1.b+f-19 | 17 and t1.e+t1.c)}
+} {17}
+do_test randexpr-2.1504 {
+  db eval {SELECT +(11)-19-case when 19+13-19+f*19*c not in (coalesce((select max((select ~min(t1.b)+(count(distinct t1.d)) | min(13)*count(distinct t1.a)*max(a) from t1)) from t1 where not 19 in (select t1.d from t1 union select 19 from t1) or 19<=t1.c),t1.b | f) | e-f,d,d) then t1.a else d end FROM t1 WHERE t1.d in (select case when t1.e>(case coalesce((select (11)-t1.e from t1 where case t1.e when t1.c then (coalesce((select max(+t1.b) from t1 where (a in (case when 19 in (select cast(avg((t1.b)) AS integer) from t1 union select cast(avg( - -17) AS integer) from t1) then a when 17>=13 then c else t1.e end,11,11) or not 19 between t1.b and t1.a)),t1.e)) else d end<=t1.c),13) when e then a else d end) then a when 19 in (select (11) from t1 union select t1.e from t1) then (e) else t1.d end from t1 union select t1.d from t1)}
+} {-108}
+do_test randexpr-2.1505 {
+  db eval {SELECT +(11)-19-case when 19+13-19+f*19*c not in (coalesce((select max((select ~min(t1.b)+(count(distinct t1.d)) | min(13)*count(distinct t1.a)*max(a) from t1)) from t1 where not 19 in (select t1.d from t1 union select 19 from t1) or 19<=t1.c),t1.b | f) | e-f,d,d) then t1.a else d end FROM t1 WHERE NOT (t1.d in (select case when t1.e>(case coalesce((select (11)-t1.e from t1 where case t1.e when t1.c then (coalesce((select max(+t1.b) from t1 where (a in (case when 19 in (select cast(avg((t1.b)) AS integer) from t1 union select cast(avg( - -17) AS integer) from t1) then a when 17>=13 then c else t1.e end,11,11) or not 19 between t1.b and t1.a)),t1.e)) else d end<=t1.c),13) when e then a else d end) then a when 19 in (select (11) from t1 union select t1.e from t1) then (e) else t1.d end from t1 union select t1.d from t1))}
+} {}
+do_test randexpr-2.1506 {
+  db eval {SELECT +(11)-19-case when 19+13-19+f*19*c not in (coalesce((select max((select ~min(t1.b)+(count(distinct t1.d)) & min(13)*count(distinct t1.a)*max(a) from t1)) from t1 where not 19 in (select t1.d from t1 union select 19 from t1) or 19<=t1.c),t1.b & f) & e-f,d,d) then t1.a else d end FROM t1 WHERE t1.d in (select case when t1.e>(case coalesce((select (11)-t1.e from t1 where case t1.e when t1.c then (coalesce((select max(+t1.b) from t1 where (a in (case when 19 in (select cast(avg((t1.b)) AS integer) from t1 union select cast(avg( - -17) AS integer) from t1) then a when 17>=13 then c else t1.e end,11,11) or not 19 between t1.b and t1.a)),t1.e)) else d end<=t1.c),13) when e then a else d end) then a when 19 in (select (11) from t1 union select t1.e from t1) then (e) else t1.d end from t1 union select t1.d from t1)}
+} {-108}
+do_test randexpr-2.1507 {
+  db eval {SELECT (abs(case t1.f when (abs((abs( -t1.b+t1.f | case when t1.e-b*19<=17 then 13 when t1.d<>c-coalesce((select max(coalesce((select t1.d from t1 where (not exists(select 1 from t1 where (19)<=a) or 11 between t1.e and f)),d | t1.f)) from t1 where (t1.a between 19 and t1.a)),13) then 19 else f end)/abs(t1.f))-t1.a)/abs(e))+t1.e then t1.b else b end)/abs(19))+t1.a FROM t1 WHERE 17 in (select f*f from t1 union select a+d from t1)}
+} {}
+do_test randexpr-2.1508 {
+  db eval {SELECT (abs(case t1.f when (abs((abs( -t1.b+t1.f | case when t1.e-b*19<=17 then 13 when t1.d<>c-coalesce((select max(coalesce((select t1.d from t1 where (not exists(select 1 from t1 where (19)<=a) or 11 between t1.e and f)),d | t1.f)) from t1 where (t1.a between 19 and t1.a)),13) then 19 else f end)/abs(t1.f))-t1.a)/abs(e))+t1.e then t1.b else b end)/abs(19))+t1.a FROM t1 WHERE NOT (17 in (select f*f from t1 union select a+d from t1))}
+} {110}
+do_test randexpr-2.1509 {
+  db eval {SELECT (abs(case t1.f when (abs((abs( -t1.b+t1.f & case when t1.e-b*19<=17 then 13 when t1.d<>c-coalesce((select max(coalesce((select t1.d from t1 where (not exists(select 1 from t1 where (19)<=a) or 11 between t1.e and f)),d & t1.f)) from t1 where (t1.a between 19 and t1.a)),13) then 19 else f end)/abs(t1.f))-t1.a)/abs(e))+t1.e then t1.b else b end)/abs(19))+t1.a FROM t1 WHERE NOT (17 in (select f*f from t1 union select a+d from t1))}
+} {110}
+do_test randexpr-2.1510 {
+  db eval {SELECT (coalesce((select t1.e from t1 where +case when t1.c+f<>d-17 then t1.a when not (abs(t1.c)/abs(case case  -f when f then a else t1.b end-t1.e-t1.f when t1.b then  -e else t1.c end))>e or t1.b=a or exists(select 1 from t1 where 19>=t1.b) and t1.c< -e then t1.e else 13 end<=t1.b),b)) | d FROM t1 WHERE case 13 when 13 then 17-f else a end=e and (exists(select 1 from t1 where b in (select t1.f from t1 union select coalesce((select case when (abs(t1.c)/abs(17)) in (a,f*c,11) then c when ( -t1.d) in (select ~count(distinct t1.b) from t1 union select min((t1.c)) from t1) then t1.a else t1.e end from t1 where exists(select 1 from t1 where (t1.f) in (t1.d,17, -11))),b)-d*11*c+a from t1)))}
+} {}
+do_test randexpr-2.1511 {
+  db eval {SELECT (coalesce((select t1.e from t1 where +case when t1.c+f<>d-17 then t1.a when not (abs(t1.c)/abs(case case  -f when f then a else t1.b end-t1.e-t1.f when t1.b then  -e else t1.c end))>e or t1.b=a or exists(select 1 from t1 where 19>=t1.b) and t1.c< -e then t1.e else 13 end<=t1.b),b)) | d FROM t1 WHERE NOT (case 13 when 13 then 17-f else a end=e and (exists(select 1 from t1 where b in (select t1.f from t1 union select coalesce((select case when (abs(t1.c)/abs(17)) in (a,f*c,11) then c when ( -t1.d) in (select ~count(distinct t1.b) from t1 union select min((t1.c)) from t1) then t1.a else t1.e end from t1 where exists(select 1 from t1 where (t1.f) in (t1.d,17, -11))),b)-d*11*c+a from t1))))}
+} {500}
+do_test randexpr-2.1512 {
+  db eval {SELECT (coalesce((select t1.e from t1 where +case when t1.c+f<>d-17 then t1.a when not (abs(t1.c)/abs(case case  -f when f then a else t1.b end-t1.e-t1.f when t1.b then  -e else t1.c end))>e or t1.b=a or exists(select 1 from t1 where 19>=t1.b) and t1.c< -e then t1.e else 13 end<=t1.b),b)) & d FROM t1 WHERE NOT (case 13 when 13 then 17-f else a end=e and (exists(select 1 from t1 where b in (select t1.f from t1 union select coalesce((select case when (abs(t1.c)/abs(17)) in (a,f*c,11) then c when ( -t1.d) in (select ~count(distinct t1.b) from t1 union select min((t1.c)) from t1) then t1.a else t1.e end from t1 where exists(select 1 from t1 where (t1.f) in (t1.d,17, -11))),b)-d*11*c+a from t1))))}
+} {400}
+do_test randexpr-2.1513 {
+  db eval {SELECT (abs( -case when exists(select 1 from t1 where (abs(e++11-(abs(c)/abs(t1.f)))/abs(19+t1.b))+t1.b-c=(b)) or d in (~d, -f,c) then (select min(13) from t1)+11+~t1.a*t1.a else d end-t1.d)/abs((select (max(d))+count(*)-min(t1.c) from t1))) FROM t1 WHERE (select +min(c+d) | (max(13)+min(case when t1.e not in (t1.d,t1.d,19*t1.d) then t1.a when 17=d then t1.b else a end)+ - -max(t1.a)*count(distinct f) | count(*)+max(t1.d) | count(distinct d))-count(distinct 17)-count(*) from t1) not in (e,d+11,(t1.a+t1.f))}
+} {7}
+do_test randexpr-2.1514 {
+  db eval {SELECT (abs( -case when exists(select 1 from t1 where (abs(e++11-(abs(c)/abs(t1.f)))/abs(19+t1.b))+t1.b-c=(b)) or d in (~d, -f,c) then (select min(13) from t1)+11+~t1.a*t1.a else d end-t1.d)/abs((select (max(d))+count(*)-min(t1.c) from t1))) FROM t1 WHERE NOT ((select +min(c+d) | (max(13)+min(case when t1.e not in (t1.d,t1.d,19*t1.d) then t1.a when 17=d then t1.b else a end)+ - -max(t1.a)*count(distinct f) | count(*)+max(t1.d) | count(distinct d))-count(distinct 17)-count(*) from t1) not in (e,d+11,(t1.a+t1.f)))}
+} {}
+do_test randexpr-2.1515 {
+  db eval {SELECT case when not exists(select 1 from t1 where (not case t1.b when d then c else coalesce((select max(b+case c+c when t1.c then coalesce((select ((e)) from t1 where c in (e,t1.f,t1.d)),t1.a) else t1.f end+t1.e) from t1 where not t1.e not between t1.f and t1.a),19) end+f<>b)) then e when f in (19,t1.d, -c) then 19 else case when e>=t1.f then 19 else 19 end end FROM t1 WHERE 19 between e+case when d>(select ~max(t1.d)+max(t1.d*t1.c)-~count(distinct c)-count(*)-count(distinct t1.b)* -(count(*)) from t1) then ~a when not exists(select 1 from t1 where t1.c>=13) or (t1.f=t1.a or c in ((f), -c,t1.e)) and b=b and e not between t1.b and  -11 or t1.c in (t1.c,17,t1.c) and t1.f=t1.d then t1.a*t1.d*t1.c else d end and e}
+} {}
+do_test randexpr-2.1516 {
+  db eval {SELECT case when not exists(select 1 from t1 where (not case t1.b when d then c else coalesce((select max(b+case c+c when t1.c then coalesce((select ((e)) from t1 where c in (e,t1.f,t1.d)),t1.a) else t1.f end+t1.e) from t1 where not t1.e not between t1.f and t1.a),19) end+f<>b)) then e when f in (19,t1.d, -c) then 19 else case when e>=t1.f then 19 else 19 end end FROM t1 WHERE NOT (19 between e+case when d>(select ~max(t1.d)+max(t1.d*t1.c)-~count(distinct c)-count(*)-count(distinct t1.b)* -(count(*)) from t1) then ~a when not exists(select 1 from t1 where t1.c>=13) or (t1.f=t1.a or c in ((f), -c,t1.e)) and b=b and e not between t1.b and  -11 or t1.c in (t1.c,17,t1.c) and t1.f=t1.d then t1.a*t1.d*t1.c else d end and e)}
+} {500}
+do_test randexpr-2.1517 {
+  db eval {SELECT (select  -+case  -(case  -max(d) when ~+ -+(count(*)) then abs(max(case 17+t1.a-11-t1.c when 19 then f else e end*((t1.c))+b)) else (min(d)*count(distinct t1.e)) end)++abs(count(*))- -cast(avg(c) AS integer)+max(d) when count(distinct c) then min(f) else (count(distinct a)) end from t1) FROM t1 WHERE ((case  -a when case when f between 11 and t1.d then d else c+17 end then b else a end+11-c between  -a and t1.a) or b>t1.f and t1.a<t1.e and (t1.d)<=b or 19 in (select f from t1 union select e from t1) and t1.f not between 19 and 11 or t1.b not in (t1.e,t1.e,11))}
+} {-1}
+do_test randexpr-2.1518 {
+  db eval {SELECT (select  -+case  -(case  -max(d) when ~+ -+(count(*)) then abs(max(case 17+t1.a-11-t1.c when 19 then f else e end*((t1.c))+b)) else (min(d)*count(distinct t1.e)) end)++abs(count(*))- -cast(avg(c) AS integer)+max(d) when count(distinct c) then min(f) else (count(distinct a)) end from t1) FROM t1 WHERE NOT (((case  -a when case when f between 11 and t1.d then d else c+17 end then b else a end+11-c between  -a and t1.a) or b>t1.f and t1.a<t1.e and (t1.d)<=b or 19 in (select f from t1 union select e from t1) and t1.f not between 19 and 11 or t1.b not in (t1.e,t1.e,11)))}
+} {}
+do_test randexpr-2.1519 {
+  db eval {SELECT  -coalesce((select max((select case +count(*)+(case min((abs(d)/abs(b))) when +count(*) | (min(b)) then  -min((t1.a)) else max( -t1.a) end*max( -t1.e))+max(f) when (count(*)) then count(distinct 17) else cast(avg((t1.c)) AS integer) end from t1)) from t1 where t1.d in (select 13 from t1 union select t1.c from t1)),(abs(case when ((c>=f) or f in (t1.a,(t1.a),a)) then  -~c-d else t1.e end)/abs(13))) FROM t1 WHERE (select (+~max(case when t1.e>=coalesce((select max(t1.d) from t1 where +f not in (coalesce((select 11 from t1 where 13 | c in (select c from t1 union select b from t1)),f),t1.c, -a)),13) then e else 19 end)-min(t1.a)) from t1)+((coalesce((select t1.e from t1 where not exists(select 1 from t1 where not exists(select 1 from t1 where t1.c=t1.a))),a)))+13 in (select d from t1 union select t1.a from t1) and e>=b}
+} {}
+do_test randexpr-2.1520 {
+  db eval {SELECT  -coalesce((select max((select case +count(*)+(case min((abs(d)/abs(b))) when +count(*) | (min(b)) then  -min((t1.a)) else max( -t1.a) end*max( -t1.e))+max(f) when (count(*)) then count(distinct 17) else cast(avg((t1.c)) AS integer) end from t1)) from t1 where t1.d in (select 13 from t1 union select t1.c from t1)),(abs(case when ((c>=f) or f in (t1.a,(t1.a),a)) then  -~c-d else t1.e end)/abs(13))) FROM t1 WHERE NOT ((select (+~max(case when t1.e>=coalesce((select max(t1.d) from t1 where +f not in (coalesce((select 11 from t1 where 13 | c in (select c from t1 union select b from t1)),f),t1.c, -a)),13) then e else 19 end)-min(t1.a)) from t1)+((coalesce((select t1.e from t1 where not exists(select 1 from t1 where not exists(select 1 from t1 where t1.c=t1.a))),a)))+13 in (select d from t1 union select t1.a from t1) and e>=b)}
+} {-38}
+do_test randexpr-2.1521 {
+  db eval {SELECT  -coalesce((select max((select case +count(*)+(case min((abs(d)/abs(b))) when +count(*) & (min(b)) then  -min((t1.a)) else max( -t1.a) end*max( -t1.e))+max(f) when (count(*)) then count(distinct 17) else cast(avg((t1.c)) AS integer) end from t1)) from t1 where t1.d in (select 13 from t1 union select t1.c from t1)),(abs(case when ((c>=f) or f in (t1.a,(t1.a),a)) then  -~c-d else t1.e end)/abs(13))) FROM t1 WHERE NOT ((select (+~max(case when t1.e>=coalesce((select max(t1.d) from t1 where +f not in (coalesce((select 11 from t1 where 13 | c in (select c from t1 union select b from t1)),f),t1.c, -a)),13) then e else 19 end)-min(t1.a)) from t1)+((coalesce((select t1.e from t1 where not exists(select 1 from t1 where not exists(select 1 from t1 where t1.c=t1.a))),a)))+13 in (select d from t1 union select t1.a from t1) and e>=b)}
+} {-38}
+do_test randexpr-2.1522 {
+  db eval {SELECT +(select +abs(+cast(avg(t1.b) AS integer)*abs(case  -max( -(t1.a*t1.f)+t1.e* -t1.f*13 | 17 | f+t1.c) when abs(cast(avg(d) AS integer))-(++~min(t1.f) | count(*)-cast(avg(f) AS integer)) then count(*) else cast(avg(13) AS integer) end+ -min(b)))+min(a) from t1) FROM t1 WHERE case t1.a-t1.e*+t1.f-(select abs(count(*)) from t1)+coalesce((select max(t1.c) from t1 where not exists(select 1 from t1 where ~t1.b in (select +count(*) | count(distinct case b when t1.a then f else case when (t1.d-t1.b)<11 then t1.d else f end end) from t1 union select +cast(avg(( -d)) AS integer) from t1))),t1.d*t1.a) | e when t1.f then (t1.d) else t1.f end not in (d,f,e)}
+} {}
+do_test randexpr-2.1523 {
+  db eval {SELECT +(select +abs(+cast(avg(t1.b) AS integer)*abs(case  -max( -(t1.a*t1.f)+t1.e* -t1.f*13 | 17 | f+t1.c) when abs(cast(avg(d) AS integer))-(++~min(t1.f) | count(*)-cast(avg(f) AS integer)) then count(*) else cast(avg(13) AS integer) end+ -min(b)))+min(a) from t1) FROM t1 WHERE NOT (case t1.a-t1.e*+t1.f-(select abs(count(*)) from t1)+coalesce((select max(t1.c) from t1 where not exists(select 1 from t1 where ~t1.b in (select +count(*) | count(distinct case b when t1.a then f else case when (t1.d-t1.b)<11 then t1.d else f end end) from t1 union select +cast(avg(( -d)) AS integer) from t1))),t1.d*t1.a) | e when t1.f then (t1.d) else t1.f end not in (d,f,e))}
+} {37500}
+do_test randexpr-2.1524 {
+  db eval {SELECT +(select +abs(+cast(avg(t1.b) AS integer)*abs(case  -max( -(t1.a*t1.f)+t1.e* -t1.f*13 & 17 & f+t1.c) when abs(cast(avg(d) AS integer))-(++~min(t1.f) & count(*)-cast(avg(f) AS integer)) then count(*) else cast(avg(13) AS integer) end+ -min(b)))+min(a) from t1) FROM t1 WHERE NOT (case t1.a-t1.e*+t1.f-(select abs(count(*)) from t1)+coalesce((select max(t1.c) from t1 where not exists(select 1 from t1 where ~t1.b in (select +count(*) | count(distinct case b when t1.a then f else case when (t1.d-t1.b)<11 then t1.d else f end end) from t1 union select +cast(avg(( -d)) AS integer) from t1))),t1.d*t1.a) | e when t1.f then (t1.d) else t1.f end not in (d,f,e))}
+} {37500}
+do_test randexpr-2.1525 {
+  db eval {SELECT t1.d+case when coalesce((select b from t1 where case when (select max(t1.a*(select case count(distinct c) when max(17+c) then  - -max(d)-count(*) else cast(avg((e)) AS integer) end from t1)) from t1) not between t1.d and t1.d then t1.d when t1.c not between c and t1.f then ( -t1.d) else t1.d end not between e and t1.e),d)<>17 then (t1.f) when 11=t1.c then 11 else t1.f end*c*t1.a-c FROM t1 WHERE (case when coalesce((select ~coalesce((select max(a) from t1 where 11 in (select ~case  -count(*) when cast(avg(d) AS integer) then  -max(t1.f) else (count(distinct 11)) end+cast(avg( - -13) AS integer) | count(*)-min(f) from t1 union select count(*) from t1)),t1.b*t1.f*17) from t1 where not exists(select 1 from t1 where t1.a not between d and 11)),b)-17*t1.d+t1.a in ( -t1.c,t1.e,11) then b else t1.d end in (select 17 from t1 union select 13 from t1)) and  -t1.a in (select (d) from t1 union select t1.b from t1)}
+} {}
+do_test randexpr-2.1526 {
+  db eval {SELECT t1.d+case when coalesce((select b from t1 where case when (select max(t1.a*(select case count(distinct c) when max(17+c) then  - -max(d)-count(*) else cast(avg((e)) AS integer) end from t1)) from t1) not between t1.d and t1.d then t1.d when t1.c not between c and t1.f then ( -t1.d) else t1.d end not between e and t1.e),d)<>17 then (t1.f) when 11=t1.c then 11 else t1.f end*c*t1.a-c FROM t1 WHERE NOT ((case when coalesce((select ~coalesce((select max(a) from t1 where 11 in (select ~case  -count(*) when cast(avg(d) AS integer) then  -max(t1.f) else (count(distinct 11)) end+cast(avg( - -13) AS integer) | count(*)-min(f) from t1 union select count(*) from t1)),t1.b*t1.f*17) from t1 where not exists(select 1 from t1 where t1.a not between d and 11)),b)-17*t1.d+t1.a in ( -t1.c,t1.e,11) then b else t1.d end in (select 17 from t1 union select 13 from t1)) and  -t1.a in (select (d) from t1 union select t1.b from t1))}
+} {18000100}
+do_test randexpr-2.1527 {
+  db eval {SELECT coalesce((select (abs(b+t1.c)/abs(coalesce((select max( -~t1.d) from t1 where coalesce((select max(11) from t1 where not t1.d>=(select count(*) from t1)),case b-coalesce((select t1.e-f from t1 where coalesce((select max(case a when t1.e then t1.f else 11 end) from t1 where t1.b>=t1.f),t1.d) not in (f,e,13)),t1.f) when  -11 then t1.c else 19 end)-d not in (f,f,b)),f))) from t1 where d<=t1.d),f) FROM t1 WHERE c+case when coalesce((select d from t1 where coalesce((select max(17) from t1 where c>17-11),17)<c),case when not (t1.d) in (select 19 from t1 union select t1.a from t1) then case when  -d<=17 then f else t1.a end else 19 end)+e in (select 17 from t1 union select  -t1.b from t1) then b when 17<t1.b or 17<f then  -11 else t1.d end*b-t1.d in (select count(distinct d) from t1 union select count(distinct c) from t1)}
+} {}
+do_test randexpr-2.1528 {
+  db eval {SELECT coalesce((select (abs(b+t1.c)/abs(coalesce((select max( -~t1.d) from t1 where coalesce((select max(11) from t1 where not t1.d>=(select count(*) from t1)),case b-coalesce((select t1.e-f from t1 where coalesce((select max(case a when t1.e then t1.f else 11 end) from t1 where t1.b>=t1.f),t1.d) not in (f,e,13)),t1.f) when  -11 then t1.c else 19 end)-d not in (f,f,b)),f))) from t1 where d<=t1.d),f) FROM t1 WHERE NOT (c+case when coalesce((select d from t1 where coalesce((select max(17) from t1 where c>17-11),17)<c),case when not (t1.d) in (select 19 from t1 union select t1.a from t1) then case when  -d<=17 then f else t1.a end else 19 end)+e in (select 17 from t1 union select  -t1.b from t1) then b when 17<t1.b or 17<f then  -11 else t1.d end*b-t1.d in (select count(distinct d) from t1 union select count(distinct c) from t1))}
+} {1}
+do_test randexpr-2.1529 {
+  db eval {SELECT (abs(19)/abs(coalesce((select max((abs((abs(t1.a)/abs(e)))/abs(b))) from t1 where not t1.f<13 and 17-(abs(b-13*f*(abs(+17-f+t1.a)/abs(t1.d)))/abs(t1.e))+e-17>f and (exists(select 1 from t1 where (17 in (e, -t1.f,c)) and t1.f<=19))),d))) FROM t1 WHERE f*t1.c<>t1.b}
+} {0}
+do_test randexpr-2.1530 {
+  db eval {SELECT (abs(19)/abs(coalesce((select max((abs((abs(t1.a)/abs(e)))/abs(b))) from t1 where not t1.f<13 and 17-(abs(b-13*f*(abs(+17-f+t1.a)/abs(t1.d)))/abs(t1.e))+e-17>f and (exists(select 1 from t1 where (17 in (e, -t1.f,c)) and t1.f<=19))),d))) FROM t1 WHERE NOT (f*t1.c<>t1.b)}
+} {}
+do_test randexpr-2.1531 {
+  db eval {SELECT case when t1.d in (select count(distinct 11) from t1 union select case abs(++cast(avg(t1.b) AS integer)+count(*) |  -(count(*))) when count(*) then count(distinct t1.b) else count(distinct  -t1.a) end | max(t1.c) from t1) and t1.f<=case when exists(select 1 from t1 where t1.f+t1.f<>17 and t1.b>d) then 19 when t1.e=a then coalesce((select b from t1 where 13 not in (t1.b,t1.a,t1.a)),t1.c) else t1.d end and t1.d>(t1.b) and c in (e,t1.d,t1.b) then b | c when f=t1.e then e else 19 end FROM t1 WHERE t1.f between (c-t1.d+t1.f*t1.f) and 11+t1.e*coalesce((select max(coalesce((select max(t1.e) from t1 where exists(select 1 from t1 where (c-13 between t1.e*a and 11 or (t1.f>f) or t1.c>=t1.f))),t1.b-b-11)) from t1 where (f>t1.f)),11)-t1.b*e}
+} {}
+do_test randexpr-2.1532 {
+  db eval {SELECT case when t1.d in (select count(distinct 11) from t1 union select case abs(++cast(avg(t1.b) AS integer)+count(*) |  -(count(*))) when count(*) then count(distinct t1.b) else count(distinct  -t1.a) end | max(t1.c) from t1) and t1.f<=case when exists(select 1 from t1 where t1.f+t1.f<>17 and t1.b>d) then 19 when t1.e=a then coalesce((select b from t1 where 13 not in (t1.b,t1.a,t1.a)),t1.c) else t1.d end and t1.d>(t1.b) and c in (e,t1.d,t1.b) then b | c when f=t1.e then e else 19 end FROM t1 WHERE NOT (t1.f between (c-t1.d+t1.f*t1.f) and 11+t1.e*coalesce((select max(coalesce((select max(t1.e) from t1 where exists(select 1 from t1 where (c-13 between t1.e*a and 11 or (t1.f>f) or t1.c>=t1.f))),t1.b-b-11)) from t1 where (f>t1.f)),11)-t1.b*e)}
+} {19}
+do_test randexpr-2.1533 {
+  db eval {SELECT case when t1.d in (select count(distinct 11) from t1 union select case abs(++cast(avg(t1.b) AS integer)+count(*) &  -(count(*))) when count(*) then count(distinct t1.b) else count(distinct  -t1.a) end & max(t1.c) from t1) and t1.f<=case when exists(select 1 from t1 where t1.f+t1.f<>17 and t1.b>d) then 19 when t1.e=a then coalesce((select b from t1 where 13 not in (t1.b,t1.a,t1.a)),t1.c) else t1.d end and t1.d>(t1.b) and c in (e,t1.d,t1.b) then b & c when f=t1.e then e else 19 end FROM t1 WHERE NOT (t1.f between (c-t1.d+t1.f*t1.f) and 11+t1.e*coalesce((select max(coalesce((select max(t1.e) from t1 where exists(select 1 from t1 where (c-13 between t1.e*a and 11 or (t1.f>f) or t1.c>=t1.f))),t1.b-b-11)) from t1 where (f>t1.f)),11)-t1.b*e)}
+} {19}
+do_test randexpr-2.1534 {
+  db eval {SELECT coalesce((select t1.e from t1 where (case when 19>=t1.c then t1.d else coalesce((select max(11*t1.b) from t1 where case ~t1.c-(select max(11) from t1)*~t1.b+f*~coalesce((select max(d) from t1 where d>=b),d)-t1.a*t1.c*t1.d when  -t1.c then 13 else f end in (select b from t1 union select 13 from t1)),t1.f) end | b<>a)),t1.e) FROM t1 WHERE not exists(select 1 from t1 where not (t1.e<t1.b and t1.e<>t1.b+case (select count(distinct e)*cast(avg(case c when e then case a when f then b else d end-a-13 else 13 end*t1.a+ -t1.d) AS integer) from t1)+c | (t1.f)*f when  -c then d else 19 end) and  -17 in (select min(t1.b) from t1 union select count(distinct f) from t1))}
+} {500}
+do_test randexpr-2.1535 {
+  db eval {SELECT coalesce((select t1.e from t1 where (case when 19>=t1.c then t1.d else coalesce((select max(11*t1.b) from t1 where case ~t1.c-(select max(11) from t1)*~t1.b+f*~coalesce((select max(d) from t1 where d>=b),d)-t1.a*t1.c*t1.d when  -t1.c then 13 else f end in (select b from t1 union select 13 from t1)),t1.f) end | b<>a)),t1.e) FROM t1 WHERE NOT (not exists(select 1 from t1 where not (t1.e<t1.b and t1.e<>t1.b+case (select count(distinct e)*cast(avg(case c when e then case a when f then b else d end-a-13 else 13 end*t1.a+ -t1.d) AS integer) from t1)+c | (t1.f)*f when  -c then d else 19 end) and  -17 in (select min(t1.b) from t1 union select count(distinct f) from t1)))}
+} {}
+do_test randexpr-2.1536 {
+  db eval {SELECT coalesce((select t1.e from t1 where (case when 19>=t1.c then t1.d else coalesce((select max(11*t1.b) from t1 where case ~t1.c-(select max(11) from t1)*~t1.b+f*~coalesce((select max(d) from t1 where d>=b),d)-t1.a*t1.c*t1.d when  -t1.c then 13 else f end in (select b from t1 union select 13 from t1)),t1.f) end & b<>a)),t1.e) FROM t1 WHERE not exists(select 1 from t1 where not (t1.e<t1.b and t1.e<>t1.b+case (select count(distinct e)*cast(avg(case c when e then case a when f then b else d end-a-13 else 13 end*t1.a+ -t1.d) AS integer) from t1)+c | (t1.f)*f when  -c then d else 19 end) and  -17 in (select min(t1.b) from t1 union select count(distinct f) from t1))}
+} {500}
+do_test randexpr-2.1537 {
+  db eval {SELECT coalesce((select t1.c from t1 where f between case when (abs(coalesce((select 11* -~coalesce((select a*case coalesce((select max(a) from t1 where exists(select 1 from t1 where e in (17,t1.b,13))), -t1.e) when  -a then d else c end from t1 where t1.a>=t1.e),17)+t1.a-t1.d from t1 where exists(select 1 from t1 where  -b>t1.b)),e))/abs(d))<>17 then t1.d when 11< -f then d else d end*d and 17),b)-f-t1.d FROM t1 WHERE case when e<t1.d then t1.a when t1.f>=(abs(t1.b)/abs((abs(t1.f)/abs( -case b when 19 then ((abs((case when (+case when f between e and c then t1.f when t1.b>19 then t1.e else t1.f end+11+t1.a in (select t1.c from t1 union select f from t1)) then e-(13) when not exists(select 1 from t1 where not exists(select 1 from t1 where (13)>t1.f)) then t1.c else t1.f end))/abs(t1.d))) else c end)))) then b else (t1.d) end not between t1.a and t1.a}
+} {-800}
+do_test randexpr-2.1538 {
+  db eval {SELECT coalesce((select t1.c from t1 where f between case when (abs(coalesce((select 11* -~coalesce((select a*case coalesce((select max(a) from t1 where exists(select 1 from t1 where e in (17,t1.b,13))), -t1.e) when  -a then d else c end from t1 where t1.a>=t1.e),17)+t1.a-t1.d from t1 where exists(select 1 from t1 where  -b>t1.b)),e))/abs(d))<>17 then t1.d when 11< -f then d else d end*d and 17),b)-f-t1.d FROM t1 WHERE NOT (case when e<t1.d then t1.a when t1.f>=(abs(t1.b)/abs((abs(t1.f)/abs( -case b when 19 then ((abs((case when (+case when f between e and c then t1.f when t1.b>19 then t1.e else t1.f end+11+t1.a in (select t1.c from t1 union select f from t1)) then e-(13) when not exists(select 1 from t1 where not exists(select 1 from t1 where (13)>t1.f)) then t1.c else t1.f end))/abs(t1.d))) else c end)))) then b else (t1.d) end not between t1.a and t1.a)}
+} {}
+do_test randexpr-2.1539 {
+  db eval {SELECT case when not exists(select 1 from t1 where (coalesce((select max(coalesce((select 11 from t1 where t1.b*t1.d<=+case t1.c when (select max(case when not exists(select 1 from t1 where e=t1.b) then t1.a else f end) from t1)*t1.b | t1.a then 17 else 13 end-f | t1.e),13)) from t1 where a in (t1.b,t1.b,(t1.e))),11)*11 not in (d,t1.a,17))) then 13 when c in (select e from t1 union select t1.d from t1) then 19 else 13 end FROM t1 WHERE not exists(select 1 from t1 where case when  -b*13>+d then t1.e else coalesce((select case when not exists(select 1 from t1 where 11 in (c,+case when (case when e between t1.b and f then t1.a when t1.c not in (a,(c),t1.a) then  -t1.b else t1.a end<>d or f>e) then t1.e else t1.c end,t1.b)) then 19 else  -17 end*t1.d from t1 where (17 in (19,17,t1.f))),(t1.e)) end between 11 and t1.b and t1.a<>b)}
+} {13}
+do_test randexpr-2.1540 {
+  db eval {SELECT case when not exists(select 1 from t1 where (coalesce((select max(coalesce((select 11 from t1 where t1.b*t1.d<=+case t1.c when (select max(case when not exists(select 1 from t1 where e=t1.b) then t1.a else f end) from t1)*t1.b | t1.a then 17 else 13 end-f | t1.e),13)) from t1 where a in (t1.b,t1.b,(t1.e))),11)*11 not in (d,t1.a,17))) then 13 when c in (select e from t1 union select t1.d from t1) then 19 else 13 end FROM t1 WHERE NOT (not exists(select 1 from t1 where case when  -b*13>+d then t1.e else coalesce((select case when not exists(select 1 from t1 where 11 in (c,+case when (case when e between t1.b and f then t1.a when t1.c not in (a,(c),t1.a) then  -t1.b else t1.a end<>d or f>e) then t1.e else t1.c end,t1.b)) then 19 else  -17 end*t1.d from t1 where (17 in (19,17,t1.f))),(t1.e)) end between 11 and t1.b and t1.a<>b))}
+} {}
+do_test randexpr-2.1541 {
+  db eval {SELECT case when not exists(select 1 from t1 where (coalesce((select max(coalesce((select 11 from t1 where t1.b*t1.d<=+case t1.c when (select max(case when not exists(select 1 from t1 where e=t1.b) then t1.a else f end) from t1)*t1.b & t1.a then 17 else 13 end-f & t1.e),13)) from t1 where a in (t1.b,t1.b,(t1.e))),11)*11 not in (d,t1.a,17))) then 13 when c in (select e from t1 union select t1.d from t1) then 19 else 13 end FROM t1 WHERE not exists(select 1 from t1 where case when  -b*13>+d then t1.e else coalesce((select case when not exists(select 1 from t1 where 11 in (c,+case when (case when e between t1.b and f then t1.a when t1.c not in (a,(c),t1.a) then  -t1.b else t1.a end<>d or f>e) then t1.e else t1.c end,t1.b)) then 19 else  -17 end*t1.d from t1 where (17 in (19,17,t1.f))),(t1.e)) end between 11 and t1.b and t1.a<>b)}
+} {13}
+do_test randexpr-2.1542 {
+  db eval {SELECT a-coalesce((select max(++19) from t1 where (select count(distinct coalesce((select max(t1.c) from t1 where not (t1.c+t1.c)-case when (not coalesce((select max(t1.a-t1.a) from t1 where t1.d>t1.b),e) in (t1.d,19,(t1.e))) then b when exists(select 1 from t1 where t1.e> -13) then c else e end<>c),17)) from t1) not between 19 and t1.f),t1.b) | 19-t1.d*f+b FROM t1 WHERE t1.f | coalesce((select case when c>=t1.f then t1.e+t1.e when  -19 | (a)+t1.f in (b,coalesce((select t1.c | (f+e)-e*17 from t1 where  -c not in (t1.d,c,(13))),19),t1.e) then t1.c else 17 end+b from t1 where t1.a not in (17,d,c)),17) in (select f from t1 union select f from t1)}
+} {}
+do_test randexpr-2.1543 {
+  db eval {SELECT a-coalesce((select max(++19) from t1 where (select count(distinct coalesce((select max(t1.c) from t1 where not (t1.c+t1.c)-case when (not coalesce((select max(t1.a-t1.a) from t1 where t1.d>t1.b),e) in (t1.d,19,(t1.e))) then b when exists(select 1 from t1 where t1.e> -13) then c else e end<>c),17)) from t1) not between 19 and t1.f),t1.b) | 19-t1.d*f+b FROM t1 WHERE NOT (t1.f | coalesce((select case when c>=t1.f then t1.e+t1.e when  -19 | (a)+t1.f in (b,coalesce((select t1.c | (f+e)-e*17 from t1 where  -c not in (t1.d,c,(13))),19),t1.e) then t1.c else 17 end+b from t1 where t1.a not in (17,d,c)),17) in (select f from t1 union select f from t1))}
+} {-239781}
+do_test randexpr-2.1544 {
+  db eval {SELECT a-coalesce((select max(++19) from t1 where (select count(distinct coalesce((select max(t1.c) from t1 where not (t1.c+t1.c)-case when (not coalesce((select max(t1.a-t1.a) from t1 where t1.d>t1.b),e) in (t1.d,19,(t1.e))) then b when exists(select 1 from t1 where t1.e> -13) then c else e end<>c),17)) from t1) not between 19 and t1.f),t1.b) & 19-t1.d*f+b FROM t1 WHERE NOT (t1.f | coalesce((select case when c>=t1.f then t1.e+t1.e when  -19 | (a)+t1.f in (b,coalesce((select t1.c | (f+e)-e*17 from t1 where  -c not in (t1.d,c,(13))),19),t1.e) then t1.c else 17 end+b from t1 where t1.a not in (17,d,c)),17) in (select f from t1 union select f from t1))}
+} {81}
+do_test randexpr-2.1545 {
+  db eval {SELECT coalesce((select (t1.d) from t1 where not not case when c<coalesce((select f from t1 where 13 | t1.d in (select 11*t1.f*case when exists(select 1 from t1 where d>=case when f<>( -t1.c) then c when 19<>t1.d then t1.f else d end) then e-f when c in (select d from t1 union select f from t1) then a else t1.b end | t1.a-f from t1 union select  -19 from t1)),19) then 19 when 11 between f and t1.f then t1.c else 19 end=a),t1.f) FROM t1 WHERE coalesce((select t1.d from t1 where (case when exists(select 1 from t1 where not  - -19 in (17,f,t1.b)) and 19>c or t1.c in (select t1.e from t1 union select 17 from t1) then a when exists(select 1 from t1 where (t1.c<>d)) and  -t1.c not between b and e then 11 else (select cast(avg((abs(b)/abs(d))) AS integer) from t1) end+t1.d not in (t1.f,11,b) and f not between 17 and t1.d)),t1.e)=t1.a}
+} {}
+do_test randexpr-2.1546 {
+  db eval {SELECT coalesce((select (t1.d) from t1 where not not case when c<coalesce((select f from t1 where 13 | t1.d in (select 11*t1.f*case when exists(select 1 from t1 where d>=case when f<>( -t1.c) then c when 19<>t1.d then t1.f else d end) then e-f when c in (select d from t1 union select f from t1) then a else t1.b end | t1.a-f from t1 union select  -19 from t1)),19) then 19 when 11 between f and t1.f then t1.c else 19 end=a),t1.f) FROM t1 WHERE NOT (coalesce((select t1.d from t1 where (case when exists(select 1 from t1 where not  - -19 in (17,f,t1.b)) and 19>c or t1.c in (select t1.e from t1 union select 17 from t1) then a when exists(select 1 from t1 where (t1.c<>d)) and  -t1.c not between b and e then 11 else (select cast(avg((abs(b)/abs(d))) AS integer) from t1) end+t1.d not in (t1.f,11,b) and f not between 17 and t1.d)),t1.e)=t1.a)}
+} {600}
+do_test randexpr-2.1547 {
+  db eval {SELECT coalesce((select (t1.d) from t1 where not not case when c<coalesce((select f from t1 where 13 & t1.d in (select 11*t1.f*case when exists(select 1 from t1 where d>=case when f<>( -t1.c) then c when 19<>t1.d then t1.f else d end) then e-f when c in (select d from t1 union select f from t1) then a else t1.b end & t1.a-f from t1 union select  -19 from t1)),19) then 19 when 11 between f and t1.f then t1.c else 19 end=a),t1.f) FROM t1 WHERE NOT (coalesce((select t1.d from t1 where (case when exists(select 1 from t1 where not  - -19 in (17,f,t1.b)) and 19>c or t1.c in (select t1.e from t1 union select 17 from t1) then a when exists(select 1 from t1 where (t1.c<>d)) and  -t1.c not between b and e then 11 else (select cast(avg((abs(b)/abs(d))) AS integer) from t1) end+t1.d not in (t1.f,11,b) and f not between 17 and t1.d)),t1.e)=t1.a)}
+} {600}
+do_test randexpr-2.1548 {
+  db eval {SELECT coalesce((select max(case when  -++t1.c++(abs(case when t1.b<case when exists(select 1 from t1 where  -t1.b-13=t1.e) then t1.b else c end then t1.f else case when t1.a<t1.b+t1.d then 19 when t1.f not in (t1.c,c,c) then t1.d else t1.f end end)/abs(19))*b-d>b then 11 else b end) from t1 where ((t1.b)) between e and e),t1.e) FROM t1 WHERE not ~t1.c-(coalesce((select max(~case t1.e | b*11+d+19 when t1.a then t1.b else t1.d end) from t1 where (13 not in (t1.a,t1.a,13))),e)) not between t1.a and 11 or exists(select 1 from t1 where (t1.d) not in (11,13,t1.a) and (c<>b or  -13<>t1.b and c in (t1.f, -c,t1.d)))}
+} {500}
+do_test randexpr-2.1549 {
+  db eval {SELECT coalesce((select max(case when  -++t1.c++(abs(case when t1.b<case when exists(select 1 from t1 where  -t1.b-13=t1.e) then t1.b else c end then t1.f else case when t1.a<t1.b+t1.d then 19 when t1.f not in (t1.c,c,c) then t1.d else t1.f end end)/abs(19))*b-d>b then 11 else b end) from t1 where ((t1.b)) between e and e),t1.e) FROM t1 WHERE NOT (not ~t1.c-(coalesce((select max(~case t1.e | b*11+d+19 when t1.a then t1.b else t1.d end) from t1 where (13 not in (t1.a,t1.a,13))),e)) not between t1.a and 11 or exists(select 1 from t1 where (t1.d) not in (11,13,t1.a) and (c<>b or  -13<>t1.b and c in (t1.f, -c,t1.d))))}
+} {}
+do_test randexpr-2.1550 {
+  db eval {SELECT case 19*d-+t1.a | coalesce((select f from t1 where +b between coalesce((select +t1.f from t1 where not exists(select 1 from t1 where case 17 when b then f else f end>=~13)),t1.f) and t1.d),c+11)- -t1.e | 17+case t1.b when t1.a then 17 else t1.f end*t1.c+a when f then  -f else t1.f end | t1.b FROM t1 WHERE t1.f=f and not exists(select 1 from t1 where case when t1.b>e then (abs(13)/abs(t1.f | 17))+(t1.f) else ~t1.a-(~e) end in (select count(distinct coalesce((select max(coalesce((select 11 from t1 where t1.a<d),(b))*17) from t1 where (e in (select count(*) from t1 union select max(t1.a)-cast(avg(17) AS integer)-(cast(avg(11) AS integer)) from t1))),t1.d)) from t1 union select cast(avg(c) AS integer) from t1)) and e between c and f}
+} {728}
+do_test randexpr-2.1551 {
+  db eval {SELECT case 19*d-+t1.a | coalesce((select f from t1 where +b between coalesce((select +t1.f from t1 where not exists(select 1 from t1 where case 17 when b then f else f end>=~13)),t1.f) and t1.d),c+11)- -t1.e | 17+case t1.b when t1.a then 17 else t1.f end*t1.c+a when f then  -f else t1.f end | t1.b FROM t1 WHERE NOT (t1.f=f and not exists(select 1 from t1 where case when t1.b>e then (abs(13)/abs(t1.f | 17))+(t1.f) else ~t1.a-(~e) end in (select count(distinct coalesce((select max(coalesce((select 11 from t1 where t1.a<d),(b))*17) from t1 where (e in (select count(*) from t1 union select max(t1.a)-cast(avg(17) AS integer)-(cast(avg(11) AS integer)) from t1))),t1.d)) from t1 union select cast(avg(c) AS integer) from t1)) and e between c and f)}
+} {}
+do_test randexpr-2.1552 {
+  db eval {SELECT case 19*d-+t1.a & coalesce((select f from t1 where +b between coalesce((select +t1.f from t1 where not exists(select 1 from t1 where case 17 when b then f else f end>=~13)),t1.f) and t1.d),c+11)- -t1.e & 17+case t1.b when t1.a then 17 else t1.f end*t1.c+a when f then  -f else t1.f end & t1.b FROM t1 WHERE t1.f=f and not exists(select 1 from t1 where case when t1.b>e then (abs(13)/abs(t1.f | 17))+(t1.f) else ~t1.a-(~e) end in (select count(distinct coalesce((select max(coalesce((select 11 from t1 where t1.a<d),(b))*17) from t1 where (e in (select count(*) from t1 union select max(t1.a)-cast(avg(17) AS integer)-(cast(avg(11) AS integer)) from t1))),t1.d)) from t1 union select cast(avg(c) AS integer) from t1)) and e between c and f}
+} {72}
+do_test randexpr-2.1553 {
+  db eval {SELECT (coalesce((select max(coalesce((select (abs(t1.e* -b*coalesce((select max( -t1.e*t1.e+t1.f) from t1 where  -case when b>=t1.e and e>f then 11 | 19 else t1.c end | b in (select a from t1 union select 13 from t1)),b)+t1.b | (d)*11)/abs(e)) from t1 where a=19),t1.e)*13) from t1 where 13>f),t1.f)) FROM t1 WHERE coalesce((select max(~t1.a*t1.f*t1.b+f+a) from t1 where case when d in (select  -+count(distinct (t1.c))*max(t1.e+b)-(( -count(distinct 17))) from t1 union select  -count(distinct t1.d) from t1) then t1.d else (abs(case when t1.e in (select t1.c from t1 union select c from t1) then c else d end)/abs(f)) end in (select max( -c) from t1 union select abs(count(distinct 19)) from t1)), -a) not in (d,t1.f,13)}
+} {600}
+do_test randexpr-2.1554 {
+  db eval {SELECT (coalesce((select max(coalesce((select (abs(t1.e* -b*coalesce((select max( -t1.e*t1.e+t1.f) from t1 where  -case when b>=t1.e and e>f then 11 | 19 else t1.c end | b in (select a from t1 union select 13 from t1)),b)+t1.b | (d)*11)/abs(e)) from t1 where a=19),t1.e)*13) from t1 where 13>f),t1.f)) FROM t1 WHERE NOT (coalesce((select max(~t1.a*t1.f*t1.b+f+a) from t1 where case when d in (select  -+count(distinct (t1.c))*max(t1.e+b)-(( -count(distinct 17))) from t1 union select  -count(distinct t1.d) from t1) then t1.d else (abs(case when t1.e in (select t1.c from t1 union select c from t1) then c else d end)/abs(f)) end in (select max( -c) from t1 union select abs(count(distinct 19)) from t1)), -a) not in (d,t1.f,13))}
+} {}
+do_test randexpr-2.1555 {
+  db eval {SELECT (coalesce((select max(coalesce((select (abs(t1.e* -b*coalesce((select max( -t1.e*t1.e+t1.f) from t1 where  -case when b>=t1.e and e>f then 11 & 19 else t1.c end & b in (select a from t1 union select 13 from t1)),b)+t1.b & (d)*11)/abs(e)) from t1 where a=19),t1.e)*13) from t1 where 13>f),t1.f)) FROM t1 WHERE coalesce((select max(~t1.a*t1.f*t1.b+f+a) from t1 where case when d in (select  -+count(distinct (t1.c))*max(t1.e+b)-(( -count(distinct 17))) from t1 union select  -count(distinct t1.d) from t1) then t1.d else (abs(case when t1.e in (select t1.c from t1 union select c from t1) then c else d end)/abs(f)) end in (select max( -c) from t1 union select abs(count(distinct 19)) from t1)), -a) not in (d,t1.f,13)}
+} {600}
+do_test randexpr-2.1556 {
+  db eval {SELECT +(abs(17*(abs(a | t1.a)/abs(11)) | f)/abs(coalesce((select +t1.b+~a from t1 where case when a=t1.b then c when t1.d=t1.e then t1.b else 17 end<=t1.f and (b<>13) or t1.a<>a or t1.d>d and 11 between 17 and t1.a and t1.b<> -e and  -13<(17)),a)+ -t1.e))*(t1.c) FROM t1 WHERE not a not between t1.a and 11+ -coalesce((select  -c*coalesce((select max(~f*a+11-t1.a |  -a+t1.a*t1.b*f) from t1 where 11=11),t1.a)+d from t1 where 13>=e),d) | t1.b or t1.a not between  -b and f or 17<>13}
+} {300}
+do_test randexpr-2.1557 {
+  db eval {SELECT +(abs(17*(abs(a | t1.a)/abs(11)) | f)/abs(coalesce((select +t1.b+~a from t1 where case when a=t1.b then c when t1.d=t1.e then t1.b else 17 end<=t1.f and (b<>13) or t1.a<>a or t1.d>d and 11 between 17 and t1.a and t1.b<> -e and  -13<(17)),a)+ -t1.e))*(t1.c) FROM t1 WHERE NOT (not a not between t1.a and 11+ -coalesce((select  -c*coalesce((select max(~f*a+11-t1.a |  -a+t1.a*t1.b*f) from t1 where 11=11),t1.a)+d from t1 where 13>=e),d) | t1.b or t1.a not between  -b and f or 17<>13)}
+} {}
+do_test randexpr-2.1558 {
+  db eval {SELECT +(abs(17*(abs(a & t1.a)/abs(11)) & f)/abs(coalesce((select +t1.b+~a from t1 where case when a=t1.b then c when t1.d=t1.e then t1.b else 17 end<=t1.f and (b<>13) or t1.a<>a or t1.d>d and 11 between 17 and t1.a and t1.b<> -e and  -13<(17)),a)+ -t1.e))*(t1.c) FROM t1 WHERE not a not between t1.a and 11+ -coalesce((select  -c*coalesce((select max(~f*a+11-t1.a |  -a+t1.a*t1.b*f) from t1 where 11=11),t1.a)+d from t1 where 13>=e),d) | t1.b or t1.a not between  -b and f or 17<>13}
+} {0}
+do_test randexpr-2.1559 {
+  db eval {SELECT b-case e*13+case when not not t1.d in (select t1.b from t1 union select f from t1) then t1.c when coalesce((select max(coalesce((select (select ~min(coalesce((select max(a*f) from t1 where t1.f<=t1.b or a<=f),t1.a)) |  -(count(distinct 19)) from t1) from t1 where f between (t1.f) and 11),a)) from t1 where 11 not in (f, -11,19)),e)>=d then t1.f else t1.c end when  -a then 11 else t1.e end FROM t1 WHERE coalesce((select case case when case when (coalesce((select max(t1.e) from t1 where c>c and  -19>= -a),d) not in (11,t1.b,t1.a)) then d else a end between 11 and t1.c then b else a end+13-t1.a when t1.d then (b) else t1.d end from t1 where b between e and t1.f),11) in (select (+abs(count(*)+case  -count(distinct t1.e) when  -(max(19)) then (count(distinct 19)) else  -count(distinct e) end-max(t1.b)) | count(distinct t1.e) | (cast(avg(11) AS integer))) from t1 union select cast(avg(c) AS integer) from t1)}
+} {}
+do_test randexpr-2.1560 {
+  db eval {SELECT b-case e*13+case when not not t1.d in (select t1.b from t1 union select f from t1) then t1.c when coalesce((select max(coalesce((select (select ~min(coalesce((select max(a*f) from t1 where t1.f<=t1.b or a<=f),t1.a)) |  -(count(distinct 19)) from t1) from t1 where f between (t1.f) and 11),a)) from t1 where 11 not in (f, -11,19)),e)>=d then t1.f else t1.c end when  -a then 11 else t1.e end FROM t1 WHERE NOT (coalesce((select case case when case when (coalesce((select max(t1.e) from t1 where c>c and  -19>= -a),d) not in (11,t1.b,t1.a)) then d else a end between 11 and t1.c then b else a end+13-t1.a when t1.d then (b) else t1.d end from t1 where b between e and t1.f),11) in (select (+abs(count(*)+case  -count(distinct t1.e) when  -(max(19)) then (count(distinct 19)) else  -count(distinct e) end-max(t1.b)) | count(distinct t1.e) | (cast(avg(11) AS integer))) from t1 union select cast(avg(c) AS integer) from t1))}
+} {-300}
+do_test randexpr-2.1561 {
+  db eval {SELECT b-case e*13+case when not not t1.d in (select t1.b from t1 union select f from t1) then t1.c when coalesce((select max(coalesce((select (select ~min(coalesce((select max(a*f) from t1 where t1.f<=t1.b or a<=f),t1.a)) &  -(count(distinct 19)) from t1) from t1 where f between (t1.f) and 11),a)) from t1 where 11 not in (f, -11,19)),e)>=d then t1.f else t1.c end when  -a then 11 else t1.e end FROM t1 WHERE NOT (coalesce((select case case when case when (coalesce((select max(t1.e) from t1 where c>c and  -19>= -a),d) not in (11,t1.b,t1.a)) then d else a end between 11 and t1.c then b else a end+13-t1.a when t1.d then (b) else t1.d end from t1 where b between e and t1.f),11) in (select (+abs(count(*)+case  -count(distinct t1.e) when  -(max(19)) then (count(distinct 19)) else  -count(distinct e) end-max(t1.b)) | count(distinct t1.e) | (cast(avg(11) AS integer))) from t1 union select cast(avg(c) AS integer) from t1))}
+} {-300}
+do_test randexpr-2.1562 {
+  db eval {SELECT coalesce((select case when a not in (~17,a,c) then b when t1.c<>t1.f-13 then +f else 11 end+t1.e*t1.a+case when ((a-c)>case when (exists(select 1 from t1 where (c) between d and  -t1.b)) then a+t1.f else f end) or e between t1.c and 13 then  -t1.c else t1.e end-t1.d from t1 where ( -17=a)),e) FROM t1 WHERE +case when not exists(select 1 from t1 where f+(select ~ -min(b) | abs(+max(+c)) from t1)+b not between 13-a*17 and t1.e-t1.b) then t1.a when b not between ((11)) and 11 then 13 else 17 end+ - -t1.f in (f,t1.d,f) or t1.b>t1.a and not exists(select 1 from t1 where t1.d in (t1.c,d,t1.c))}
+} {}
+do_test randexpr-2.1563 {
+  db eval {SELECT coalesce((select case when a not in (~17,a,c) then b when t1.c<>t1.f-13 then +f else 11 end+t1.e*t1.a+case when ((a-c)>case when (exists(select 1 from t1 where (c) between d and  -t1.b)) then a+t1.f else f end) or e between t1.c and 13 then  -t1.c else t1.e end-t1.d from t1 where ( -17=a)),e) FROM t1 WHERE NOT (+case when not exists(select 1 from t1 where f+(select ~ -min(b) | abs(+max(+c)) from t1)+b not between 13-a*17 and t1.e-t1.b) then t1.a when b not between ((11)) and 11 then 13 else 17 end+ - -t1.f in (f,t1.d,f) or t1.b>t1.a and not exists(select 1 from t1 where t1.d in (t1.c,d,t1.c)))}
+} {500}
+do_test randexpr-2.1564 {
+  db eval {SELECT case coalesce((select 19-case when case when f in (select t1.c from t1 union select (select count(*) from t1) from t1) then a+e else 19 end*19-19-13 not in (11,19,a) then f when (13<>(t1.c) or d>e and b=b) then t1.a else 13 end from t1 where (not exists(select 1 from t1 where not exists(select 1 from t1 where t1.a=17)))),a) when t1.d then 19 else e end FROM t1 WHERE 13-coalesce((select (abs(19)/abs(11)) from t1 where case when a in (select d from t1 union select case when  -11-11<>d or t1.e between (t1.d) and b then t1.f else f end from t1) then t1.e else  -a end not between 13 and 19 or exists(select 1 from t1 where f< -( -t1.d)) and t1.a not between  -e and t1.e or t1.f<f and 13=13 and t1.f>(t1.f)),t1.d)=11}
+} {}
+do_test randexpr-2.1565 {
+  db eval {SELECT case coalesce((select 19-case when case when f in (select t1.c from t1 union select (select count(*) from t1) from t1) then a+e else 19 end*19-19-13 not in (11,19,a) then f when (13<>(t1.c) or d>e and b=b) then t1.a else 13 end from t1 where (not exists(select 1 from t1 where not exists(select 1 from t1 where t1.a=17)))),a) when t1.d then 19 else e end FROM t1 WHERE NOT (13-coalesce((select (abs(19)/abs(11)) from t1 where case when a in (select d from t1 union select case when  -11-11<>d or t1.e between (t1.d) and b then t1.f else f end from t1) then t1.e else  -a end not between 13 and 19 or exists(select 1 from t1 where f< -( -t1.d)) and t1.a not between  -e and t1.e or t1.f<f and 13=13 and t1.f>(t1.f)),t1.d)=11)}
+} {500}
+do_test randexpr-2.1566 {
+  db eval {SELECT (select  -count(distinct  -case (select (max( -c-t1.b+~f)*count(distinct 11) | +cast(avg(11) AS integer)-min(t1.f)+ -(cast(avg(( -11)) AS integer))-count(distinct t1.d)*(max(13))*(max(d))-(count(*))-min(e)) from t1) when + -c then t1.d else t1.b*19 end-a | t1.d+t1.d) from t1) FROM t1 WHERE not 11-t1.a=a+11}
+} {-1}
+do_test randexpr-2.1567 {
+  db eval {SELECT (select  -count(distinct  -case (select (max( -c-t1.b+~f)*count(distinct 11) | +cast(avg(11) AS integer)-min(t1.f)+ -(cast(avg(( -11)) AS integer))-count(distinct t1.d)*(max(13))*(max(d))-(count(*))-min(e)) from t1) when + -c then t1.d else t1.b*19 end-a | t1.d+t1.d) from t1) FROM t1 WHERE NOT (not 11-t1.a=a+11)}
+} {}
+do_test randexpr-2.1568 {
+  db eval {SELECT (select  -count(distinct  -case (select (max( -c-t1.b+~f)*count(distinct 11) & +cast(avg(11) AS integer)-min(t1.f)+ -(cast(avg(( -11)) AS integer))-count(distinct t1.d)*(max(13))*(max(d))-(count(*))-min(e)) from t1) when + -c then t1.d else t1.b*19 end-a & t1.d+t1.d) from t1) FROM t1 WHERE not 11-t1.a=a+11}
+} {-1}
+do_test randexpr-2.1569 {
+  db eval {SELECT (select ~count(distinct t1.d*e+19)+abs(+cast(avg((select (count(*)) from t1)) AS integer)-cast(avg(t1.c) AS integer) | min(case when d | f* -19 in (select min(c) from t1 union select ~count(*)-max(17) from t1) then t1.e when (t1.b between 17 and (b)) then t1.d else t1.d end)*cast(avg(e) AS integer))-count(distinct t1.f) | cast(avg( -d) AS integer)*cast(avg(f) AS integer) from t1)*t1.e FROM t1 WHERE coalesce((select 17 from t1 where coalesce((select max(case when 13-b+coalesce((select case when (f>a) then t1.f when t1.c<=19 then a else a end from t1 where c in (select (e) from t1 union select 13 from t1)),13)<13 then 13 else t1.b end) from t1 where (13)<>13),17) in (select +min(b) from t1 union select ~max(t1.d)*max( -t1.b)*min(t1.e) from t1) and e>c),f) between ((t1.f)) and b and t1.a=19}
+} {}
+do_test randexpr-2.1570 {
+  db eval {SELECT (select ~count(distinct t1.d*e+19)+abs(+cast(avg((select (count(*)) from t1)) AS integer)-cast(avg(t1.c) AS integer) | min(case when d | f* -19 in (select min(c) from t1 union select ~count(*)-max(17) from t1) then t1.e when (t1.b between 17 and (b)) then t1.d else t1.d end)*cast(avg(e) AS integer))-count(distinct t1.f) | cast(avg( -d) AS integer)*cast(avg(f) AS integer) from t1)*t1.e FROM t1 WHERE NOT (coalesce((select 17 from t1 where coalesce((select max(case when 13-b+coalesce((select case when (f>a) then t1.f when t1.c<=19 then a else a end from t1 where c in (select (e) from t1 union select 13 from t1)),13)<13 then 13 else t1.b end) from t1 where (13)<>13),17) in (select +min(b) from t1 union select ~max(t1.d)*max( -t1.b)*min(t1.e) from t1) and e>c),f) between ((t1.f)) and b and t1.a=19)}
+} {-119980000}
+do_test randexpr-2.1571 {
+  db eval {SELECT (select ~count(distinct t1.d*e+19)+abs(+cast(avg((select (count(*)) from t1)) AS integer)-cast(avg(t1.c) AS integer) & min(case when d & f* -19 in (select min(c) from t1 union select ~count(*)-max(17) from t1) then t1.e when (t1.b between 17 and (b)) then t1.d else t1.d end)*cast(avg(e) AS integer))-count(distinct t1.f) & cast(avg( -d) AS integer)*cast(avg(f) AS integer) from t1)*t1.e FROM t1 WHERE NOT (coalesce((select 17 from t1 where coalesce((select max(case when 13-b+coalesce((select case when (f>a) then t1.f when t1.c<=19 then a else a end from t1 where c in (select (e) from t1 union select 13 from t1)),13)<13 then 13 else t1.b end) from t1 where (13)<>13),17) in (select +min(b) from t1 union select ~max(t1.d)*max( -t1.b)*min(t1.e) from t1) and e>c),f) between ((t1.f)) and b and t1.a=19)}
+} {512000}
+do_test randexpr-2.1572 {
+  db eval {SELECT coalesce((select d from t1 where case when (17 between c+t1.d-t1.a and b and t1.b in (13,t1.d,19)) then case when t1.c<(a) then t1.c when t1.e not in (a,11,(t1.d)) then t1.d else d end else t1.a end in (select abs(min(a) | ~~count(distinct t1.e)+min(b)-count(*)) from t1 union select count(*) from t1) and not exists(select 1 from t1 where (t1.a) between t1.a and t1.d)),t1.f)-t1.a FROM t1 WHERE case when t1.e not in (coalesce((select max(coalesce((select max(b+t1.c-19*(e)-~11) from t1 where t1.a in (select ~cast(avg(~t1.a) AS integer) from t1 union select abs(~cast(avg(f) AS integer)) from t1)),e)* -c-c-b-t1.d-f) from t1 where t1.f>=t1.c),((t1.d)))- - -19,17,t1.b) then b else t1.f end<d}
+} {500}
+do_test randexpr-2.1573 {
+  db eval {SELECT coalesce((select d from t1 where case when (17 between c+t1.d-t1.a and b and t1.b in (13,t1.d,19)) then case when t1.c<(a) then t1.c when t1.e not in (a,11,(t1.d)) then t1.d else d end else t1.a end in (select abs(min(a) | ~~count(distinct t1.e)+min(b)-count(*)) from t1 union select count(*) from t1) and not exists(select 1 from t1 where (t1.a) between t1.a and t1.d)),t1.f)-t1.a FROM t1 WHERE NOT (case when t1.e not in (coalesce((select max(coalesce((select max(b+t1.c-19*(e)-~11) from t1 where t1.a in (select ~cast(avg(~t1.a) AS integer) from t1 union select abs(~cast(avg(f) AS integer)) from t1)),e)* -c-c-b-t1.d-f) from t1 where t1.f>=t1.c),((t1.d)))- - -19,17,t1.b) then b else t1.f end<d)}
+} {}
+do_test randexpr-2.1574 {
+  db eval {SELECT coalesce((select d from t1 where case when (17 between c+t1.d-t1.a and b and t1.b in (13,t1.d,19)) then case when t1.c<(a) then t1.c when t1.e not in (a,11,(t1.d)) then t1.d else d end else t1.a end in (select abs(min(a) & ~~count(distinct t1.e)+min(b)-count(*)) from t1 union select count(*) from t1) and not exists(select 1 from t1 where (t1.a) between t1.a and t1.d)),t1.f)-t1.a FROM t1 WHERE case when t1.e not in (coalesce((select max(coalesce((select max(b+t1.c-19*(e)-~11) from t1 where t1.a in (select ~cast(avg(~t1.a) AS integer) from t1 union select abs(~cast(avg(f) AS integer)) from t1)),e)* -c-c-b-t1.d-f) from t1 where t1.f>=t1.c),((t1.d)))- - -19,17,t1.b) then b else t1.f end<d}
+} {500}
+do_test randexpr-2.1575 {
+  db eval {SELECT (abs((select min(t1.a)*~+ -count(*)-max(t1.f) from t1))/abs((abs(13*~t1.c- -e-( -19) | case 17*~13 when t1.c+case when not 19 between 13 and a then t1.c when  -11 not between e and 17 then 19 else a end then 19 else 17 end*19)/abs(t1.d)))) FROM t1 WHERE t1.e in (select d from t1 union select case when not exists(select 1 from t1 where c+a*17 not between case when t1.f>=(t1.f)+a then t1.d else 19 end and t1.c or exists(select 1 from t1 where (b in (13,13,b)) and (t1.f<>t1.e)) or (13)<>17 and e<=f and e<= -c) and t1.f>f then t1.e*19-t1.e-b else 17 end from t1)}
+} {}
+do_test randexpr-2.1576 {
+  db eval {SELECT (abs((select min(t1.a)*~+ -count(*)-max(t1.f) from t1))/abs((abs(13*~t1.c- -e-( -19) | case 17*~13 when t1.c+case when not 19 between 13 and a then t1.c when  -11 not between e and 17 then 19 else a end then 19 else 17 end*19)/abs(t1.d)))) FROM t1 WHERE NOT (t1.e in (select d from t1 union select case when not exists(select 1 from t1 where c+a*17 not between case when t1.f>=(t1.f)+a then t1.d else 19 end and t1.c or exists(select 1 from t1 where (b in (13,13,b)) and (t1.f<>t1.e)) or (13)<>17 and e<=f and e<= -c) and t1.f>f then t1.e*19-t1.e-b else 17 end from t1))}
+} {85}
+do_test randexpr-2.1577 {
+  db eval {SELECT b-t1.b-coalesce((select (abs(case t1.c+coalesce((select +17*case when b in (select abs(max(19) | count(distinct t1.e)) | cast(avg(t1.d) AS integer) from t1 union select (count(*)) from t1) then +11+t1.a when 11<d then  -b else t1.c end from t1 where t1.f not between d and t1.c),t1.d)-13*t1.b when e then t1.e else  -17 end)/abs( - -d)) from t1 where (t1.a<>e)),d) FROM t1 WHERE t1.a<> -a}
+} {0}
+do_test randexpr-2.1578 {
+  db eval {SELECT b-t1.b-coalesce((select (abs(case t1.c+coalesce((select +17*case when b in (select abs(max(19) | count(distinct t1.e)) | cast(avg(t1.d) AS integer) from t1 union select (count(*)) from t1) then +11+t1.a when 11<d then  -b else t1.c end from t1 where t1.f not between d and t1.c),t1.d)-13*t1.b when e then t1.e else  -17 end)/abs( - -d)) from t1 where (t1.a<>e)),d) FROM t1 WHERE NOT (t1.a<> -a)}
+} {}
+do_test randexpr-2.1579 {
+  db eval {SELECT b-t1.b-coalesce((select (abs(case t1.c+coalesce((select +17*case when b in (select abs(max(19) & count(distinct t1.e)) & cast(avg(t1.d) AS integer) from t1 union select (count(*)) from t1) then +11+t1.a when 11<d then  -b else t1.c end from t1 where t1.f not between d and t1.c),t1.d)-13*t1.b when e then t1.e else  -17 end)/abs( - -d)) from t1 where (t1.a<>e)),d) FROM t1 WHERE t1.a<> -a}
+} {0}
+do_test randexpr-2.1580 {
+  db eval {SELECT ~(abs(b*t1.b)/abs(case when coalesce((select max((abs(a)/abs(case t1.e when t1.e then c*(t1.d) else t1.a end))) from t1 where b in (select min((t1.a)) from t1 union select + -max(b) from t1)),19)+a not between t1.e and  -19 and 13<=a then (select case cast(avg((a)) AS integer) when min(e)*max(f) then  -(count(distinct 13)) else cast(avg(13) AS integer) end-count(*) | count(distinct d) |  -count(*) from t1) else b end)) FROM t1 WHERE f not between t1.d and b}
+} {-40001}
+do_test randexpr-2.1581 {
+  db eval {SELECT ~(abs(b*t1.b)/abs(case when coalesce((select max((abs(a)/abs(case t1.e when t1.e then c*(t1.d) else t1.a end))) from t1 where b in (select min((t1.a)) from t1 union select + -max(b) from t1)),19)+a not between t1.e and  -19 and 13<=a then (select case cast(avg((a)) AS integer) when min(e)*max(f) then  -(count(distinct 13)) else cast(avg(13) AS integer) end-count(*) | count(distinct d) |  -count(*) from t1) else b end)) FROM t1 WHERE NOT (f not between t1.d and b)}
+} {}
+do_test randexpr-2.1582 {
+  db eval {SELECT +(abs(19)/abs(d | 11*t1.f))*t1.e-coalesce((select t1.b from t1 where not ((f*case when a>=17 then t1.c else (a) end-b not in (t1.b,t1.f,t1.f) or not exists(select 1 from t1 where t1.c>t1.a) and c not in (t1.d,t1.b,c)))),e) | coalesce((select ( - -f) from t1 where 19 not between 17 and 17),(a))-17*d*c FROM t1 WHERE t1.b>=e}
+} {}
+do_test randexpr-2.1583 {
+  db eval {SELECT +(abs(19)/abs(d | 11*t1.f))*t1.e-coalesce((select t1.b from t1 where not ((f*case when a>=17 then t1.c else (a) end-b not in (t1.b,t1.f,t1.f) or not exists(select 1 from t1 where t1.c>t1.a) and c not in (t1.d,t1.b,c)))),e) | coalesce((select ( - -f) from t1 where 19 not between 17 and 17),(a))-17*d*c FROM t1 WHERE NOT (t1.b>=e)}
+} {-100}
+do_test randexpr-2.1584 {
+  db eval {SELECT +(abs(19)/abs(d & 11*t1.f))*t1.e-coalesce((select t1.b from t1 where not ((f*case when a>=17 then t1.c else (a) end-b not in (t1.b,t1.f,t1.f) or not exists(select 1 from t1 where t1.c>t1.a) and c not in (t1.d,t1.b,c)))),e) & coalesce((select ( - -f) from t1 where 19 not between 17 and 17),(a))-17*d*c FROM t1 WHERE NOT (t1.b>=e)}
+} {-2039800}
+do_test randexpr-2.1585 {
+  db eval {SELECT (abs((abs(a)/abs(~17+t1.b-e+(abs(a)/abs(coalesce((select max(13) from t1 where c not in (c-(abs(+coalesce((select max(t1.b-f) from t1 where (abs(13+case ~t1.f when t1.c then t1.b else b end-e)/abs(c))-t1.e>t1.c),t1.c))/abs(11))+t1.b,t1.a,11)),t1.a)))))+19)/abs( - -t1.c)) FROM t1 WHERE ~t1.e+t1.a+(abs(case when d+e+17*~t1.a-t1.a-a*~(abs(~f)/abs( -13))*+(t1.c | a)*t1.b=e then t1.d when ( -e) not between c and  -d then  -(t1.f) else t1.b end)/abs(19))>t1.f and 11<(11)}
+} {}
+do_test randexpr-2.1586 {
+  db eval {SELECT (abs((abs(a)/abs(~17+t1.b-e+(abs(a)/abs(coalesce((select max(13) from t1 where c not in (c-(abs(+coalesce((select max(t1.b-f) from t1 where (abs(13+case ~t1.f when t1.c then t1.b else b end-e)/abs(c))-t1.e>t1.c),t1.c))/abs(11))+t1.b,t1.a,11)),t1.a)))))+19)/abs( - -t1.c)) FROM t1 WHERE NOT (~t1.e+t1.a+(abs(case when d+e+17*~t1.a-t1.a-a*~(abs(~f)/abs( -13))*+(t1.c | a)*t1.b=e then t1.d when ( -e) not between c and  -d then  -(t1.f) else t1.b end)/abs(19))>t1.f and 11<(11))}
+} {0}
+do_test randexpr-2.1587 {
+  db eval {SELECT (abs((abs( -t1.e)/abs(~17+b)))/abs((case 19 when case when t1.b in (select ~cast(avg(19) AS integer) from t1 union select max(t1.b) from t1) then case when case when exists(select 1 from t1 where t1.c not between d and e) then (11) when t1.d<11 then ( -t1.f) else c end in (select count(distinct 17) from t1 union select ~min(a) | max( -t1.a)- -min(b) from t1) then d else 17 end when 13> -t1.b then f else d end then (t1.b) else c end))) FROM t1 WHERE d in (b,+(abs(t1.b | t1.e)/abs(coalesce((select max(t1.b) from t1 where t1.f=(e*+t1.b-t1.d+b-t1.f-t1.a-case case a*t1.b when coalesce((select max(f) from t1 where c<11),(a)) then  -t1.b else t1.f end when e then d else 19 end*t1.e+19)*d),t1.b))),t1.b)}
+} {}
+do_test randexpr-2.1588 {
+  db eval {SELECT (abs((abs( -t1.e)/abs(~17+b)))/abs((case 19 when case when t1.b in (select ~cast(avg(19) AS integer) from t1 union select max(t1.b) from t1) then case when case when exists(select 1 from t1 where t1.c not between d and e) then (11) when t1.d<11 then ( -t1.f) else c end in (select count(distinct 17) from t1 union select ~min(a) | max( -t1.a)- -min(b) from t1) then d else 17 end when 13> -t1.b then f else d end then (t1.b) else c end))) FROM t1 WHERE NOT (d in (b,+(abs(t1.b | t1.e)/abs(coalesce((select max(t1.b) from t1 where t1.f=(e*+t1.b-t1.d+b-t1.f-t1.a-case case a*t1.b when coalesce((select max(f) from t1 where c<11),(a)) then  -t1.b else t1.f end when e then d else 19 end*t1.e+19)*d),t1.b))),t1.b))}
+} {0}
+do_test randexpr-2.1589 {
+  db eval {SELECT (abs((abs( -t1.e)/abs(~17+b)))/abs((case 19 when case when t1.b in (select ~cast(avg(19) AS integer) from t1 union select max(t1.b) from t1) then case when case when exists(select 1 from t1 where t1.c not between d and e) then (11) when t1.d<11 then ( -t1.f) else c end in (select count(distinct 17) from t1 union select ~min(a) & max( -t1.a)- -min(b) from t1) then d else 17 end when 13> -t1.b then f else d end then (t1.b) else c end))) FROM t1 WHERE NOT (d in (b,+(abs(t1.b | t1.e)/abs(coalesce((select max(t1.b) from t1 where t1.f=(e*+t1.b-t1.d+b-t1.f-t1.a-case case a*t1.b when coalesce((select max(f) from t1 where c<11),(a)) then  -t1.b else t1.f end when e then d else 19 end*t1.e+19)*d),t1.b))),t1.b))}
+} {0}
+do_test randexpr-2.1590 {
+  db eval {SELECT c | case when e<=(abs(case when case when not exists(select 1 from t1 where case when t1.f>case when 19>=17 or f in (19,c,t1.d) then t1.b else b end then t1.e else  -t1.b end*t1.d in (select t1.e from t1 union select c from t1)) then e else f end<>t1.d then  -a when (11 in (select b from t1 union select a from t1)) then 19 else t1.a end-(c))/abs(c))+t1.d | t1.a then  -19 else 17 end+t1.d-(t1.a) FROM t1 WHERE coalesce((select 13 from t1 where not exists(select 1 from t1 where t1.e*t1.d*t1.f>=(11) and d in (13,coalesce((select t1.f+t1.b from t1 where coalesce((select max(t1.a) from t1 where not (t1.d)<=t1.c),c) not in (t1.e,t1.d,b)),b)+f,d)) or (t1.f>f) or 11<=t1.d and 17<>13),a)<(t1.a)}
+} {317}
+do_test randexpr-2.1591 {
+  db eval {SELECT c | case when e<=(abs(case when case when not exists(select 1 from t1 where case when t1.f>case when 19>=17 or f in (19,c,t1.d) then t1.b else b end then t1.e else  -t1.b end*t1.d in (select t1.e from t1 union select c from t1)) then e else f end<>t1.d then  -a when (11 in (select b from t1 union select a from t1)) then 19 else t1.a end-(c))/abs(c))+t1.d | t1.a then  -19 else 17 end+t1.d-(t1.a) FROM t1 WHERE NOT (coalesce((select 13 from t1 where not exists(select 1 from t1 where t1.e*t1.d*t1.f>=(11) and d in (13,coalesce((select t1.f+t1.b from t1 where coalesce((select max(t1.a) from t1 where not (t1.d)<=t1.c),c) not in (t1.e,t1.d,b)),b)+f,d)) or (t1.f>f) or 11<=t1.d and 17<>13),a)<(t1.a))}
+} {}
+do_test randexpr-2.1592 {
+  db eval {SELECT c & case when e<=(abs(case when case when not exists(select 1 from t1 where case when t1.f>case when 19>=17 or f in (19,c,t1.d) then t1.b else b end then t1.e else  -t1.b end*t1.d in (select t1.e from t1 union select c from t1)) then e else f end<>t1.d then  -a when (11 in (select b from t1 union select a from t1)) then 19 else t1.a end-(c))/abs(c))+t1.d & t1.a then  -19 else 17 end+t1.d-(t1.a) FROM t1 WHERE coalesce((select 13 from t1 where not exists(select 1 from t1 where t1.e*t1.d*t1.f>=(11) and d in (13,coalesce((select t1.f+t1.b from t1 where coalesce((select max(t1.a) from t1 where not (t1.d)<=t1.c),c) not in (t1.e,t1.d,b)),b)+f,d)) or (t1.f>f) or 11<=t1.d and 17<>13),a)<(t1.a)}
+} {300}
+do_test randexpr-2.1593 {
+  db eval {SELECT  -+t1.f*coalesce((select 17 from t1 where b in (coalesce((select f- -11 from t1 where not exists(select 1 from t1 where t1.d*a<=(case when  -17<t1.c or d in (c,t1.f,c) then 13 else 13 end-e+t1.d) or 17 in (select count(distinct t1.c) from t1 union select  -count(*)-~+cast(avg(11) AS integer) | cast(avg((t1.b)) AS integer)* -cast(avg(d) AS integer)+count(distinct t1.c) from t1))),19),t1.f,e)),(f))+11-e FROM t1 WHERE not exists(select 1 from t1 where exists(select 1 from t1 where ((exists(select 1 from t1 where not b | t1.d<t1.f)))) or t1.b | f | b>=d-coalesce((select a from t1 where coalesce((select max(19) from t1 where case when 13 between coalesce((select max(b) from t1 where t1.e in (c,t1.a,17)),(a)) and ((17)) then t1.b when f=t1.b then t1.f else 17 end>t1.b),e)+b*a>=t1.a),c))}
+} {}
+do_test randexpr-2.1594 {
+  db eval {SELECT  -+t1.f*coalesce((select 17 from t1 where b in (coalesce((select f- -11 from t1 where not exists(select 1 from t1 where t1.d*a<=(case when  -17<t1.c or d in (c,t1.f,c) then 13 else 13 end-e+t1.d) or 17 in (select count(distinct t1.c) from t1 union select  -count(*)-~+cast(avg(11) AS integer) | cast(avg((t1.b)) AS integer)* -cast(avg(d) AS integer)+count(distinct t1.c) from t1))),19),t1.f,e)),(f))+11-e FROM t1 WHERE NOT (not exists(select 1 from t1 where exists(select 1 from t1 where ((exists(select 1 from t1 where not b | t1.d<t1.f)))) or t1.b | f | b>=d-coalesce((select a from t1 where coalesce((select max(19) from t1 where case when 13 between coalesce((select max(b) from t1 where t1.e in (c,t1.a,17)),(a)) and ((17)) then t1.b when f=t1.b then t1.f else 17 end>t1.b),e)+b*a>=t1.a),c)))}
+} {-360489}
+do_test randexpr-2.1595 {
+  db eval {SELECT  -+t1.f*coalesce((select 17 from t1 where b in (coalesce((select f- -11 from t1 where not exists(select 1 from t1 where t1.d*a<=(case when  -17<t1.c or d in (c,t1.f,c) then 13 else 13 end-e+t1.d) or 17 in (select count(distinct t1.c) from t1 union select  -count(*)-~+cast(avg(11) AS integer) & cast(avg((t1.b)) AS integer)* -cast(avg(d) AS integer)+count(distinct t1.c) from t1))),19),t1.f,e)),(f))+11-e FROM t1 WHERE NOT (not exists(select 1 from t1 where exists(select 1 from t1 where ((exists(select 1 from t1 where not b | t1.d<t1.f)))) or t1.b | f | b>=d-coalesce((select a from t1 where coalesce((select max(19) from t1 where case when 13 between coalesce((select max(b) from t1 where t1.e in (c,t1.a,17)),(a)) and ((17)) then t1.b when f=t1.b then t1.f else 17 end>t1.b),e)+b*a>=t1.a),c)))}
+} {-360489}
+do_test randexpr-2.1596 {
+  db eval {SELECT ~f+coalesce((select max(17+~a+t1.b) from t1 where 17>t1.c),c+case when t1.f*d not between t1.f-13 and ~t1.b then 19 when t1.a between case coalesce((select 17 from t1 where (e in (f,e,t1.b))),13) | t1.a* - -c*t1.f-a+a when e then t1.a else 13 end and b then b else e end)-11 FROM t1 WHERE 17=19*~d-case when (exists(select 1 from t1 where 17-e not between t1.b and f) or  -f not in ( -13,b,c) and t1.f not between t1.f and 13) then 13 else coalesce((select t1.f from t1 where 11 not in (a,(e),t1.f)),(t1.c)) end+t1.c or 17 in (select +(count(*)) from t1 union select ~+case  -min(t1.b) when case case max(19) when cast(avg((b)) AS integer) then (count(distinct t1.b)) else  -cast(avg(t1.b) AS integer) end when ( -max(t1.e)) then max(17) else  -count(distinct t1.f) end then cast(avg(19) AS integer) else count(*) end-count(*) |  -cast(avg(11) AS integer) from t1)}
+} {}
+do_test randexpr-2.1597 {
+  db eval {SELECT ~f+coalesce((select max(17+~a+t1.b) from t1 where 17>t1.c),c+case when t1.f*d not between t1.f-13 and ~t1.b then 19 when t1.a between case coalesce((select 17 from t1 where (e in (f,e,t1.b))),13) | t1.a* - -c*t1.f-a+a when e then t1.a else 13 end and b then b else e end)-11 FROM t1 WHERE NOT (17=19*~d-case when (exists(select 1 from t1 where 17-e not between t1.b and f) or  -f not in ( -13,b,c) and t1.f not between t1.f and 13) then 13 else coalesce((select t1.f from t1 where 11 not in (a,(e),t1.f)),(t1.c)) end+t1.c or 17 in (select +(count(*)) from t1 union select ~+case  -min(t1.b) when case case max(19) when cast(avg((b)) AS integer) then (count(distinct t1.b)) else  -cast(avg(t1.b) AS integer) end when ( -max(t1.e)) then max(17) else  -count(distinct t1.f) end then cast(avg(19) AS integer) else count(*) end-count(*) |  -cast(avg(11) AS integer) from t1))}
+} {-293}
+do_test randexpr-2.1598 {
+  db eval {SELECT ~f+coalesce((select max(17+~a+t1.b) from t1 where 17>t1.c),c+case when t1.f*d not between t1.f-13 and ~t1.b then 19 when t1.a between case coalesce((select 17 from t1 where (e in (f,e,t1.b))),13) & t1.a* - -c*t1.f-a+a when e then t1.a else 13 end and b then b else e end)-11 FROM t1 WHERE NOT (17=19*~d-case when (exists(select 1 from t1 where 17-e not between t1.b and f) or  -f not in ( -13,b,c) and t1.f not between t1.f and 13) then 13 else coalesce((select t1.f from t1 where 11 not in (a,(e),t1.f)),(t1.c)) end+t1.c or 17 in (select +(count(*)) from t1 union select ~+case  -min(t1.b) when case case max(19) when cast(avg((b)) AS integer) then (count(distinct t1.b)) else  -cast(avg(t1.b) AS integer) end when ( -max(t1.e)) then max(17) else  -count(distinct t1.f) end then cast(avg(19) AS integer) else count(*) end-count(*) |  -cast(avg(11) AS integer) from t1))}
+} {-293}
+do_test randexpr-2.1599 {
+  db eval {SELECT (case when (select count(*) from t1)++t1.d+b*t1.e | t1.a+coalesce((select max(t1.d) from t1 where d-19<>c),t1.a)+t1.f in (select coalesce((select max(b) from t1 where t1.c-case when t1.c in (select c from t1 union select t1.f from t1) then f when t1.c not in ( -e,t1.e,11) then (t1.e) else 13 end in (f,t1.e,t1.f) or t1.a not between 19 and 17),t1.c) from t1 union select e from t1) then  -t1.e else t1.a end) FROM t1 WHERE 11*b+~ -coalesce((select t1.e from t1 where not exists(select 1 from t1 where 19=t1.f)),t1.d+(abs( -a)/abs(t1.d)))-t1.d-19<=11}
+} {}
+do_test randexpr-2.1600 {
+  db eval {SELECT (case when (select count(*) from t1)++t1.d+b*t1.e | t1.a+coalesce((select max(t1.d) from t1 where d-19<>c),t1.a)+t1.f in (select coalesce((select max(b) from t1 where t1.c-case when t1.c in (select c from t1 union select t1.f from t1) then f when t1.c not in ( -e,t1.e,11) then (t1.e) else 13 end in (f,t1.e,t1.f) or t1.a not between 19 and 17),t1.c) from t1 union select e from t1) then  -t1.e else t1.a end) FROM t1 WHERE NOT (11*b+~ -coalesce((select t1.e from t1 where not exists(select 1 from t1 where 19=t1.f)),t1.d+(abs( -a)/abs(t1.d)))-t1.d-19<=11)}
+} {100}
+do_test randexpr-2.1601 {
+  db eval {SELECT (case when (select count(*) from t1)++t1.d+b*t1.e & t1.a+coalesce((select max(t1.d) from t1 where d-19<>c),t1.a)+t1.f in (select coalesce((select max(b) from t1 where t1.c-case when t1.c in (select c from t1 union select t1.f from t1) then f when t1.c not in ( -e,t1.e,11) then (t1.e) else 13 end in (f,t1.e,t1.f) or t1.a not between 19 and 17),t1.c) from t1 union select e from t1) then  -t1.e else t1.a end) FROM t1 WHERE NOT (11*b+~ -coalesce((select t1.e from t1 where not exists(select 1 from t1 where 19=t1.f)),t1.d+(abs( -a)/abs(t1.d)))-t1.d-19<=11)}
+} {100}
+do_test randexpr-2.1602 {
+  db eval {SELECT 19+~case when not not (select + - -min(f | f)-count(*)+count(*)-min(b)+count(distinct a) from t1)<=13-case when +13 between t1.a and a then 11 else 11 end and (11 not in (17, -t1.d,(f))) then t1.b | a-t1.f when t1.d<>17 then e else 17 end FROM t1 WHERE +t1.e-c<>case when c in (select d from t1 union select f from t1) then case (case when 13 in (select +c*a*13-11 from t1 union select b from t1) then t1.a when t1.f in ( -t1.f,11,a) or t1.a<=f or (exists(select 1 from t1 where 13>=d)) then t1.c else b end) when t1.d then 11 else e end when t1.b in (19,t1.d,(19)) then c else a end}
+} {-482}
+do_test randexpr-2.1603 {
+  db eval {SELECT 19+~case when not not (select + - -min(f | f)-count(*)+count(*)-min(b)+count(distinct a) from t1)<=13-case when +13 between t1.a and a then 11 else 11 end and (11 not in (17, -t1.d,(f))) then t1.b | a-t1.f when t1.d<>17 then e else 17 end FROM t1 WHERE NOT (+t1.e-c<>case when c in (select d from t1 union select f from t1) then case (case when 13 in (select +c*a*13-11 from t1 union select b from t1) then t1.a when t1.f in ( -t1.f,11,a) or t1.a<=f or (exists(select 1 from t1 where 13>=d)) then t1.c else b end) when t1.d then 11 else e end when t1.b in (19,t1.d,(19)) then c else a end)}
+} {}
+do_test randexpr-2.1604 {
+  db eval {SELECT 19+~case when not not (select + - -min(f & f)-count(*)+count(*)-min(b)+count(distinct a) from t1)<=13-case when +13 between t1.a and a then 11 else 11 end and (11 not in (17, -t1.d,(f))) then t1.b & a-t1.f when t1.d<>17 then e else 17 end FROM t1 WHERE +t1.e-c<>case when c in (select d from t1 union select f from t1) then case (case when 13 in (select +c*a*13-11 from t1 union select b from t1) then t1.a when t1.f in ( -t1.f,11,a) or t1.a<=f or (exists(select 1 from t1 where 13>=d)) then t1.c else b end) when t1.d then 11 else e end when t1.b in (19,t1.d,(19)) then c else a end}
+} {-482}
+do_test randexpr-2.1605 {
+  db eval {SELECT (case when e not between 19 and t1.a then case coalesce((select t1.e from t1 where (exists(select 1 from t1 where c in (select case count(distinct t1.b) when max(b) then min((t1.d)) else count(distinct 11) end+ -count(*) |  - -count(distinct t1.e) from t1 union select min(f) from t1))) or (select min(17) from t1) not between 13 and b and  - -c<e),t1.a)+f when (select cast(avg(a) AS integer) from t1) then 19 else 19 end when not 13>=17 and 17 between t1.e and 13 or 13>d or 11>= -t1.d then a else 13 end)+t1.f FROM t1 WHERE b<=13}
+} {}
+do_test randexpr-2.1606 {
+  db eval {SELECT (case when e not between 19 and t1.a then case coalesce((select t1.e from t1 where (exists(select 1 from t1 where c in (select case count(distinct t1.b) when max(b) then min((t1.d)) else count(distinct 11) end+ -count(*) |  - -count(distinct t1.e) from t1 union select min(f) from t1))) or (select min(17) from t1) not between 13 and b and  - -c<e),t1.a)+f when (select cast(avg(a) AS integer) from t1) then 19 else 19 end when not 13>=17 and 17 between t1.e and 13 or 13>d or 11>= -t1.d then a else 13 end)+t1.f FROM t1 WHERE NOT (b<=13)}
+} {619}
+do_test randexpr-2.1607 {
+  db eval {SELECT (case when e not between 19 and t1.a then case coalesce((select t1.e from t1 where (exists(select 1 from t1 where c in (select case count(distinct t1.b) when max(b) then min((t1.d)) else count(distinct 11) end+ -count(*) &  - -count(distinct t1.e) from t1 union select min(f) from t1))) or (select min(17) from t1) not between 13 and b and  - -c<e),t1.a)+f when (select cast(avg(a) AS integer) from t1) then 19 else 19 end when not 13>=17 and 17 between t1.e and 13 or 13>d or 11>= -t1.d then a else 13 end)+t1.f FROM t1 WHERE NOT (b<=13)}
+} {619}
+do_test randexpr-2.1608 {
+  db eval {SELECT case c when d then +e else 17-e+case when exists(select 1 from t1 where not  -f<19) then (a) when t1.a between case when t1.d- -~t1.a+(select case min(t1.a) when count(distinct t1.e) then max(f) else max(t1.f) end-min(t1.b) from t1)*(select max(17) from t1)+e*13-f in (t1.d,f,d) then f else t1.b end and b then t1.d else d end end FROM t1 WHERE b<>c*f}
+} {-83}
+do_test randexpr-2.1609 {
+  db eval {SELECT case c when d then +e else 17-e+case when exists(select 1 from t1 where not  -f<19) then (a) when t1.a between case when t1.d- -~t1.a+(select case min(t1.a) when count(distinct t1.e) then max(f) else max(t1.f) end-min(t1.b) from t1)*(select max(17) from t1)+e*13-f in (t1.d,f,d) then f else t1.b end and b then t1.d else d end end FROM t1 WHERE NOT (b<>c*f)}
+} {}
+do_test randexpr-2.1610 {
+  db eval {SELECT  -(select min(coalesce((select max(case when d>=t1.c then f-t1.c else t1.b end) from t1 where case when (17)-13<=(abs(a-e)/abs(19-t1.a)) then (select  -max(c++t1.d | +case when 19 in (select b from t1 union select t1.c from t1) then t1.d else f end) from t1) else 11-19 end not in (e,t1.e,17)),c)+t1.b) from t1) FROM t1 WHERE  -case when case when e=case when not 17>+t1.d and b*b in (e, -d,13) then  -b*c else t1.e end then t1.f when e>=a then c else 19 end+t1.e<> -t1.d then 11 when not 11<>13 then 13 else e end*17*t1.d+t1.f in (select e from t1 union select t1.b from t1)}
+} {}
+do_test randexpr-2.1611 {
+  db eval {SELECT  -(select min(coalesce((select max(case when d>=t1.c then f-t1.c else t1.b end) from t1 where case when (17)-13<=(abs(a-e)/abs(19-t1.a)) then (select  -max(c++t1.d | +case when 19 in (select b from t1 union select t1.c from t1) then t1.d else f end) from t1) else 11-19 end not in (e,t1.e,17)),c)+t1.b) from t1) FROM t1 WHERE NOT ( -case when case when e=case when not 17>+t1.d and b*b in (e, -d,13) then  -b*c else t1.e end then t1.f when e>=a then c else 19 end+t1.e<> -t1.d then 11 when not 11<>13 then 13 else e end*17*t1.d+t1.f in (select e from t1 union select t1.b from t1))}
+} {-500}
+do_test randexpr-2.1612 {
+  db eval {SELECT  -(select min(coalesce((select max(case when d>=t1.c then f-t1.c else t1.b end) from t1 where case when (17)-13<=(abs(a-e)/abs(19-t1.a)) then (select  -max(c++t1.d & +case when 19 in (select b from t1 union select t1.c from t1) then t1.d else f end) from t1) else 11-19 end not in (e,t1.e,17)),c)+t1.b) from t1) FROM t1 WHERE NOT ( -case when case when e=case when not 17>+t1.d and b*b in (e, -d,13) then  -b*c else t1.e end then t1.f when e>=a then c else 19 end+t1.e<> -t1.d then 11 when not 11<>13 then 13 else e end*17*t1.d+t1.f in (select e from t1 union select t1.b from t1))}
+} {-500}
+do_test randexpr-2.1613 {
+  db eval {SELECT case when b<=(abs(19)/abs(t1.a)) | 13-b then +f | ~d else ~case when case case when t1.c in (select 13+19 from t1 union select t1.a from t1) then  -c when 13 between t1.a and b then 17 else c end when t1.c then e else 11 end between t1.e and 11 or f in (select 17 from t1 union select (a) from t1) then t1.f-d when t1.b in (select t1.f from t1 union select t1.f from t1) then t1.c else t1.b end end FROM t1 WHERE (t1.e in (select +17 from t1 union select 11 from t1))}
+} {}
+do_test randexpr-2.1614 {
+  db eval {SELECT case when b<=(abs(19)/abs(t1.a)) | 13-b then +f | ~d else ~case when case case when t1.c in (select 13+19 from t1 union select t1.a from t1) then  -c when 13 between t1.a and b then 17 else c end when t1.c then e else 11 end between t1.e and 11 or f in (select 17 from t1 union select (a) from t1) then t1.f-d when t1.b in (select t1.f from t1 union select t1.f from t1) then t1.c else t1.b end end FROM t1 WHERE NOT ((t1.e in (select +17 from t1 union select 11 from t1)))}
+} {-201}
+do_test randexpr-2.1615 {
+  db eval {SELECT case when b<=(abs(19)/abs(t1.a)) & 13-b then +f & ~d else ~case when case case when t1.c in (select 13+19 from t1 union select t1.a from t1) then  -c when 13 between t1.a and b then 17 else c end when t1.c then e else 11 end between t1.e and 11 or f in (select 17 from t1 union select (a) from t1) then t1.f-d when t1.b in (select t1.f from t1 union select t1.f from t1) then t1.c else t1.b end end FROM t1 WHERE NOT ((t1.e in (select +17 from t1 union select 11 from t1)))}
+} {-201}
+do_test randexpr-2.1616 {
+  db eval {SELECT coalesce((select coalesce((select coalesce((select ~e+coalesce((select  -e-+17 from t1 where (select cast(avg(11) AS integer) from t1) between case when +13+13 between 19 and t1.c then t1.d else 13 end and 13),t1.c)* -(19)+17-t1.a+e from t1 where t1.b>=t1.f),t1.b) | t1.f from t1 where f in (select d from t1 union select 11 from t1)),t1.b) from t1 where t1.b=13),t1.d) FROM t1 WHERE t1.f<>(abs(t1.c)/abs(t1.a))}
+} {400}
+do_test randexpr-2.1617 {
+  db eval {SELECT coalesce((select coalesce((select coalesce((select ~e+coalesce((select  -e-+17 from t1 where (select cast(avg(11) AS integer) from t1) between case when +13+13 between 19 and t1.c then t1.d else 13 end and 13),t1.c)* -(19)+17-t1.a+e from t1 where t1.b>=t1.f),t1.b) | t1.f from t1 where f in (select d from t1 union select 11 from t1)),t1.b) from t1 where t1.b=13),t1.d) FROM t1 WHERE NOT (t1.f<>(abs(t1.c)/abs(t1.a)))}
+} {}
+do_test randexpr-2.1618 {
+  db eval {SELECT coalesce((select coalesce((select coalesce((select ~e+coalesce((select  -e-+17 from t1 where (select cast(avg(11) AS integer) from t1) between case when +13+13 between 19 and t1.c then t1.d else 13 end and 13),t1.c)* -(19)+17-t1.a+e from t1 where t1.b>=t1.f),t1.b) & t1.f from t1 where f in (select d from t1 union select 11 from t1)),t1.b) from t1 where t1.b=13),t1.d) FROM t1 WHERE t1.f<>(abs(t1.c)/abs(t1.a))}
+} {400}
+do_test randexpr-2.1619 {
+  db eval {SELECT (abs(a)/abs(coalesce((select case when coalesce((select d from t1 where d+case (coalesce((select max(e) from t1 where 17+f*13-(case 19 when t1.f then 17 else t1.e end)<>b),17)) when t1.e then t1.e else t1.a end- -13+ -t1.f between b and f),11)+t1.d between 13 and t1.d then b else (19) end-t1.c from t1 where c in (select t1.e from t1 union select f from t1)),b))) FROM t1 WHERE d>t1.a}
+} {0}
+do_test randexpr-2.1620 {
+  db eval {SELECT (abs(a)/abs(coalesce((select case when coalesce((select d from t1 where d+case (coalesce((select max(e) from t1 where 17+f*13-(case 19 when t1.f then 17 else t1.e end)<>b),17)) when t1.e then t1.e else t1.a end- -13+ -t1.f between b and f),11)+t1.d between 13 and t1.d then b else (19) end-t1.c from t1 where c in (select t1.e from t1 union select f from t1)),b))) FROM t1 WHERE NOT (d>t1.a)}
+} {}
+do_test randexpr-2.1621 {
+  db eval {SELECT coalesce((select case when coalesce((select max(coalesce((select max(e-c-coalesce((select max(c) from t1 where 19 between 13 and 13),(abs(case when c<=17 or f in (t1.a, -17,t1.f) then b else t1.c end)/abs(e))+t1.b)) from t1 where not exists(select 1 from t1 where t1.e>=b)),e)) from t1 where not exists(select 1 from t1 where 13<=t1.b or t1.f in (select d from t1 union select t1.d from t1))),17) in (select 11 from t1 union select t1.d from t1) then c else t1.e end from t1 where t1.c in (select b from t1 union select b from t1)),f) | t1.c FROM t1 WHERE c<=e}
+} {892}
+do_test randexpr-2.1622 {
+  db eval {SELECT coalesce((select case when coalesce((select max(coalesce((select max(e-c-coalesce((select max(c) from t1 where 19 between 13 and 13),(abs(case when c<=17 or f in (t1.a, -17,t1.f) then b else t1.c end)/abs(e))+t1.b)) from t1 where not exists(select 1 from t1 where t1.e>=b)),e)) from t1 where not exists(select 1 from t1 where 13<=t1.b or t1.f in (select d from t1 union select t1.d from t1))),17) in (select 11 from t1 union select t1.d from t1) then c else t1.e end from t1 where t1.c in (select b from t1 union select b from t1)),f) | t1.c FROM t1 WHERE NOT (c<=e)}
+} {}
+do_test randexpr-2.1623 {
+  db eval {SELECT coalesce((select case when coalesce((select max(coalesce((select max(e-c-coalesce((select max(c) from t1 where 19 between 13 and 13),(abs(case when c<=17 or f in (t1.a, -17,t1.f) then b else t1.c end)/abs(e))+t1.b)) from t1 where not exists(select 1 from t1 where t1.e>=b)),e)) from t1 where not exists(select 1 from t1 where 13<=t1.b or t1.f in (select d from t1 union select t1.d from t1))),17) in (select 11 from t1 union select t1.d from t1) then c else t1.e end from t1 where t1.c in (select b from t1 union select b from t1)),f) & t1.c FROM t1 WHERE c<=e}
+} {8}
+do_test randexpr-2.1624 {
+  db eval {SELECT (select +max(case when t1.a in (f,case when f in (t1.b,+ -(select count(*)-min(17) from t1)+19,11) then  -19 else 19 end*(abs(b)/abs(a)),a) then t1.b when (case a when 17 then c | t1.d else t1.c end+11)-13 in (b,11,f) then b else 17 end*17) from t1) FROM t1 WHERE c between (abs(case when (abs(d+19)/abs(19))-c*t1.d+t1.e+case when  -(abs(case when exists(select 1 from t1 where exists(select 1 from t1 where 13 in (select cast(avg(t1.b) AS integer) from t1 union select max(d) from t1))) then ~c when t1.d not between 13 and d then  -t1.b else  -f end)/abs(t1.b))+d in (t1.e,(13),e) then e when (b)<>d then t1.b else 19 end in (select 17 from t1 union select e from t1) then t1.e else t1.e end)/abs(t1.f)) and t1.e}
+} {3400}
+do_test randexpr-2.1625 {
+  db eval {SELECT (select +max(case when t1.a in (f,case when f in (t1.b,+ -(select count(*)-min(17) from t1)+19,11) then  -19 else 19 end*(abs(b)/abs(a)),a) then t1.b when (case a when 17 then c | t1.d else t1.c end+11)-13 in (b,11,f) then b else 17 end*17) from t1) FROM t1 WHERE NOT (c between (abs(case when (abs(d+19)/abs(19))-c*t1.d+t1.e+case when  -(abs(case when exists(select 1 from t1 where exists(select 1 from t1 where 13 in (select cast(avg(t1.b) AS integer) from t1 union select max(d) from t1))) then ~c when t1.d not between 13 and d then  -t1.b else  -f end)/abs(t1.b))+d in (t1.e,(13),e) then e when (b)<>d then t1.b else 19 end in (select 17 from t1 union select e from t1) then t1.e else t1.e end)/abs(t1.f)) and t1.e)}
+} {}
+do_test randexpr-2.1626 {
+  db eval {SELECT (select +max(case when t1.a in (f,case when f in (t1.b,+ -(select count(*)-min(17) from t1)+19,11) then  -19 else 19 end*(abs(b)/abs(a)),a) then t1.b when (case a when 17 then c & t1.d else t1.c end+11)-13 in (b,11,f) then b else 17 end*17) from t1) FROM t1 WHERE c between (abs(case when (abs(d+19)/abs(19))-c*t1.d+t1.e+case when  -(abs(case when exists(select 1 from t1 where exists(select 1 from t1 where 13 in (select cast(avg(t1.b) AS integer) from t1 union select max(d) from t1))) then ~c when t1.d not between 13 and d then  -t1.b else  -f end)/abs(t1.b))+d in (t1.e,(13),e) then e when (b)<>d then t1.b else 19 end in (select 17 from t1 union select e from t1) then t1.e else t1.e end)/abs(t1.f)) and t1.e}
+} {3400}
+do_test randexpr-2.1627 {
+  db eval {SELECT case when c between f and t1.f*t1.f then (coalesce((select max(d | coalesce((select 19+t1.c from t1 where t1.a between d and (b)),(t1.f))*t1.f*t1.b) from t1 where 11>13 or 19 not between 13 and 11 or t1.a>=b or b>t1.e or 11=a and t1.b<=d),f)) when a in (select min(t1.b)-abs(count(distinct 11)) from t1 union select cast(avg(t1.d) AS integer) from t1) then f else c end-t1.e FROM t1 WHERE (t1.f+a)*t1.b+(abs(b)/abs(b)) in (t1.e,case when 11-t1.a+e+case 19 when +11+ -t1.b then case ~t1.f*(f)-b when d then a else ( -c) end*(c) else t1.a end+t1.a not in (17,11,t1.e) then t1.b else (d) end*19,t1.a)}
+} {}
+do_test randexpr-2.1628 {
+  db eval {SELECT case when c between f and t1.f*t1.f then (coalesce((select max(d | coalesce((select 19+t1.c from t1 where t1.a between d and (b)),(t1.f))*t1.f*t1.b) from t1 where 11>13 or 19 not between 13 and 11 or t1.a>=b or b>t1.e or 11=a and t1.b<=d),f)) when a in (select min(t1.b)-abs(count(distinct 11)) from t1 union select cast(avg(t1.d) AS integer) from t1) then f else c end-t1.e FROM t1 WHERE NOT ((t1.f+a)*t1.b+(abs(b)/abs(b)) in (t1.e,case when 11-t1.a+e+case 19 when +11+ -t1.b then case ~t1.f*(f)-b when d then a else ( -c) end*(c) else t1.a end+t1.a not in (17,11,t1.e) then t1.b else (d) end*19,t1.a))}
+} {-200}
+do_test randexpr-2.1629 {
+  db eval {SELECT case when c between f and t1.f*t1.f then (coalesce((select max(d & coalesce((select 19+t1.c from t1 where t1.a between d and (b)),(t1.f))*t1.f*t1.b) from t1 where 11>13 or 19 not between 13 and 11 or t1.a>=b or b>t1.e or 11=a and t1.b<=d),f)) when a in (select min(t1.b)-abs(count(distinct 11)) from t1 union select cast(avg(t1.d) AS integer) from t1) then f else c end-t1.e FROM t1 WHERE NOT ((t1.f+a)*t1.b+(abs(b)/abs(b)) in (t1.e,case when 11-t1.a+e+case 19 when +11+ -t1.b then case ~t1.f*(f)-b when d then a else ( -c) end*(c) else t1.a end+t1.a not in (17,11,t1.e) then t1.b else (d) end*19,t1.a))}
+} {-200}
+do_test randexpr-2.1630 {
+  db eval {SELECT coalesce((select max(f) from t1 where (a+13>19*t1.e+a | a | 17*e or ~c not between 17 and 19*(select +(~count(distinct e)*(cast(avg(t1.b) AS integer))) | count(distinct t1.c) from t1)-f and t1.a*t1.f+c not between t1.f and f)),t1.c*(t1.e)*e) FROM t1 WHERE case case t1.f when ~17 then 11 else t1.d end when a then t1.a else e end>d*11}
+} {}
+do_test randexpr-2.1631 {
+  db eval {SELECT coalesce((select max(f) from t1 where (a+13>19*t1.e+a | a | 17*e or ~c not between 17 and 19*(select +(~count(distinct e)*(cast(avg(t1.b) AS integer))) | count(distinct t1.c) from t1)-f and t1.a*t1.f+c not between t1.f and f)),t1.c*(t1.e)*e) FROM t1 WHERE NOT (case case t1.f when ~17 then 11 else t1.d end when a then t1.a else e end>d*11)}
+} {600}
+do_test randexpr-2.1632 {
+  db eval {SELECT coalesce((select max(f) from t1 where (a+13>19*t1.e+a & a & 17*e or ~c not between 17 and 19*(select +(~count(distinct e)*(cast(avg(t1.b) AS integer))) & count(distinct t1.c) from t1)-f and t1.a*t1.f+c not between t1.f and f)),t1.c*(t1.e)*e) FROM t1 WHERE NOT (case case t1.f when ~17 then 11 else t1.d end when a then t1.a else e end>d*11)}
+} {600}
+do_test randexpr-2.1633 {
+  db eval {SELECT case when e<11 then (case case t1.a when coalesce((select max(11) from t1 where t1.c<=case when exists(select 1 from t1 where 13=e) then case when c not in (t1.f,t1.e,c) then c else ~(c)+d*f end when a>b then 11 else 11 end),(t1.c)) | 11 then b else t1.a end when 11 then t1.f else t1.d end) when d<c then t1.f else (e) end | t1.d FROM t1 WHERE 17 in (select case t1.e+ -coalesce((select max(coalesce((select max(e+t1.a) from t1 where  -t1.a in (select min(coalesce((select 11 from t1 where  -t1.a in (select a from t1 union select t1.e from t1)),t1.c))+(~cast(avg(f) AS integer)) from t1 union select case abs(( -count(distinct t1.e))) when count(distinct  -11) then count(distinct t1.b) else (max(t1.c)) end from t1)),t1.f)) from t1 where t1.c in (t1.c,t1.f,f)),c)-t1.b-t1.c-(t1.d) when 17 then 17 else t1.c end from t1 union select c from t1)}
+} {}
+do_test randexpr-2.1634 {
+  db eval {SELECT case when e<11 then (case case t1.a when coalesce((select max(11) from t1 where t1.c<=case when exists(select 1 from t1 where 13=e) then case when c not in (t1.f,t1.e,c) then c else ~(c)+d*f end when a>b then 11 else 11 end),(t1.c)) | 11 then b else t1.a end when 11 then t1.f else t1.d end) when d<c then t1.f else (e) end | t1.d FROM t1 WHERE NOT (17 in (select case t1.e+ -coalesce((select max(coalesce((select max(e+t1.a) from t1 where  -t1.a in (select min(coalesce((select 11 from t1 where  -t1.a in (select a from t1 union select t1.e from t1)),t1.c))+(~cast(avg(f) AS integer)) from t1 union select case abs(( -count(distinct t1.e))) when count(distinct  -11) then count(distinct t1.b) else (max(t1.c)) end from t1)),t1.f)) from t1 where t1.c in (t1.c,t1.f,f)),c)-t1.b-t1.c-(t1.d) when 17 then 17 else t1.c end from t1 union select c from t1))}
+} {500}
+do_test randexpr-2.1635 {
+  db eval {SELECT case when e<11 then (case case t1.a when coalesce((select max(11) from t1 where t1.c<=case when exists(select 1 from t1 where 13=e) then case when c not in (t1.f,t1.e,c) then c else ~(c)+d*f end when a>b then 11 else 11 end),(t1.c)) & 11 then b else t1.a end when 11 then t1.f else t1.d end) when d<c then t1.f else (e) end & t1.d FROM t1 WHERE NOT (17 in (select case t1.e+ -coalesce((select max(coalesce((select max(e+t1.a) from t1 where  -t1.a in (select min(coalesce((select 11 from t1 where  -t1.a in (select a from t1 union select t1.e from t1)),t1.c))+(~cast(avg(f) AS integer)) from t1 union select case abs(( -count(distinct t1.e))) when count(distinct  -11) then count(distinct t1.b) else (max(t1.c)) end from t1)),t1.f)) from t1 where t1.c in (t1.c,t1.f,f)),c)-t1.b-t1.c-(t1.d) when 17 then 17 else t1.c end from t1 union select c from t1))}
+} {400}
+do_test randexpr-2.1636 {
+  db eval {SELECT case coalesce((select a from t1 where exists(select 1 from t1 where t1.e>f)),17) when coalesce((select max((b)) from t1 where not case (abs(t1.b)/abs(t1.d+t1.b)) when t1.d then f-coalesce((select max(a) from t1 where case t1.e when c then c else 11 end not between b and  -t1.b),t1.e) else t1.a end-17 between t1.e and f and (t1.e<e) and t1.d>17), -e)*19 then t1.b else t1.c end FROM t1 WHERE not  -coalesce((select d from t1 where exists(select 1 from t1 where coalesce((select max(case when 11 not in (case when d*11<>17-(t1.e) then 13 else c end,t1.d,t1.c) then e else t1.c end) from t1 where t1.d<= - -d),11) in (select + -case (+ -cast(avg(19) AS integer)+ - -(count(*))* -count(distinct ((t1.e)))*max(d)) when count(*) then max(b) else count(*) end from t1 union select count(*) from t1))),t1.d)+13>a}
+} {300}
+do_test randexpr-2.1637 {
+  db eval {SELECT case coalesce((select a from t1 where exists(select 1 from t1 where t1.e>f)),17) when coalesce((select max((b)) from t1 where not case (abs(t1.b)/abs(t1.d+t1.b)) when t1.d then f-coalesce((select max(a) from t1 where case t1.e when c then c else 11 end not between b and  -t1.b),t1.e) else t1.a end-17 between t1.e and f and (t1.e<e) and t1.d>17), -e)*19 then t1.b else t1.c end FROM t1 WHERE NOT (not  -coalesce((select d from t1 where exists(select 1 from t1 where coalesce((select max(case when 11 not in (case when d*11<>17-(t1.e) then 13 else c end,t1.d,t1.c) then e else t1.c end) from t1 where t1.d<= - -d),11) in (select + -case (+ -cast(avg(19) AS integer)+ - -(count(*))* -count(distinct ((t1.e)))*max(d)) when count(*) then max(b) else count(*) end from t1 union select count(*) from t1))),t1.d)+13>a)}
+} {}
+do_test randexpr-2.1638 {
+  db eval {SELECT ~coalesce((select 17 from t1 where not exists(select 1 from t1 where t1.e-t1.e in (select t1.c+case d when case when not case when t1.f between ( -t1.a) and (b) or 11<>19 then (abs(t1.e)/abs(t1.f)) else e end between t1.b and e then t1.d | t1.e when 19>b then 13 else t1.a end*e*13 | 11+t1.f then t1.b else 17 end from t1 union select e from t1))),t1.a-t1.b)*t1.d*e FROM t1 WHERE d in (select 11 from t1 union select +11 from t1) or coalesce((select max(coalesce((select b-e*case when (c) | e | b in (select 19*t1.d from t1 union select t1.e from t1) then t1.d else e end from t1 where t1.a<11),d)) from t1 where (not ((17 not in ( -t1.a,e,d) and 13<11) and f>=11))),t1.b)<11}
+} {}
+do_test randexpr-2.1639 {
+  db eval {SELECT ~coalesce((select 17 from t1 where not exists(select 1 from t1 where t1.e-t1.e in (select t1.c+case d when case when not case when t1.f between ( -t1.a) and (b) or 11<>19 then (abs(t1.e)/abs(t1.f)) else e end between t1.b and e then t1.d | t1.e when 19>b then 13 else t1.a end*e*13 | 11+t1.f then t1.b else 17 end from t1 union select e from t1))),t1.a-t1.b)*t1.d*e FROM t1 WHERE NOT (d in (select 11 from t1 union select +11 from t1) or coalesce((select max(coalesce((select b-e*case when (c) | e | b in (select 19*t1.d from t1 union select t1.e from t1) then t1.d else e end from t1 where t1.a<11),d)) from t1 where (not ((17 not in ( -t1.a,e,d) and 13<11) and f>=11))),t1.b)<11)}
+} {-3600000}
+do_test randexpr-2.1640 {
+  db eval {SELECT ~coalesce((select 17 from t1 where not exists(select 1 from t1 where t1.e-t1.e in (select t1.c+case d when case when not case when t1.f between ( -t1.a) and (b) or 11<>19 then (abs(t1.e)/abs(t1.f)) else e end between t1.b and e then t1.d & t1.e when 19>b then 13 else t1.a end*e*13 & 11+t1.f then t1.b else 17 end from t1 union select e from t1))),t1.a-t1.b)*t1.d*e FROM t1 WHERE NOT (d in (select 11 from t1 union select +11 from t1) or coalesce((select max(coalesce((select b-e*case when (c) | e | b in (select 19*t1.d from t1 union select t1.e from t1) then t1.d else e end from t1 where t1.a<11),d)) from t1 where (not ((17 not in ( -t1.a,e,d) and 13<11) and f>=11))),t1.b)<11)}
+} {-3600000}
+do_test randexpr-2.1641 {
+  db eval {SELECT case b-f when t1.a then  -case when not (case t1.a when (select case cast(avg(c) AS integer) when count(distinct t1.f) then +max(t1.e) |  -((( -(count(*))))) else cast(avg(f) AS integer) end from t1)-b then a else coalesce((select t1.a from t1 where (e<d)),t1.d) end not between t1.a and t1.f) then coalesce((select max(13) from t1 where (13)=e),t1.d) when d not in (a,t1.f,c) then  -11 else t1.a end else 17 end FROM t1 WHERE  -13*t1.b-c-e+case when t1.b | b in (select cast(avg(t1.a | +(select abs(+count(*))-count(distinct (t1.f))*abs(min(t1.d))+count(distinct case when exists(select 1 from t1 where (19)>=a and e>c) or c not between a and 19 then 11 when t1.b not between e and t1.a then 17 else 11 end) from t1)) AS integer) from t1 union select cast(avg((abs(b)/abs(t1.f))) AS integer) from t1) then 17 else t1.e end>=a}
+} {}
+do_test randexpr-2.1642 {
+  db eval {SELECT case b-f when t1.a then  -case when not (case t1.a when (select case cast(avg(c) AS integer) when count(distinct t1.f) then +max(t1.e) |  -((( -(count(*))))) else cast(avg(f) AS integer) end from t1)-b then a else coalesce((select t1.a from t1 where (e<d)),t1.d) end not between t1.a and t1.f) then coalesce((select max(13) from t1 where (13)=e),t1.d) when d not in (a,t1.f,c) then  -11 else t1.a end else 17 end FROM t1 WHERE NOT ( -13*t1.b-c-e+case when t1.b | b in (select cast(avg(t1.a | +(select abs(+count(*))-count(distinct (t1.f))*abs(min(t1.d))+count(distinct case when exists(select 1 from t1 where (19)>=a and e>c) or c not between a and 19 then 11 when t1.b not between e and t1.a then 17 else 11 end) from t1)) AS integer) from t1 union select cast(avg((abs(b)/abs(t1.f))) AS integer) from t1) then 17 else t1.e end>=a)}
+} {17}
+do_test randexpr-2.1643 {
+  db eval {SELECT case b-f when t1.a then  -case when not (case t1.a when (select case cast(avg(c) AS integer) when count(distinct t1.f) then +max(t1.e) &  -((( -(count(*))))) else cast(avg(f) AS integer) end from t1)-b then a else coalesce((select t1.a from t1 where (e<d)),t1.d) end not between t1.a and t1.f) then coalesce((select max(13) from t1 where (13)=e),t1.d) when d not in (a,t1.f,c) then  -11 else t1.a end else 17 end FROM t1 WHERE NOT ( -13*t1.b-c-e+case when t1.b | b in (select cast(avg(t1.a | +(select abs(+count(*))-count(distinct (t1.f))*abs(min(t1.d))+count(distinct case when exists(select 1 from t1 where (19)>=a and e>c) or c not between a and 19 then 11 when t1.b not between e and t1.a then 17 else 11 end) from t1)) AS integer) from t1 union select cast(avg((abs(b)/abs(t1.f))) AS integer) from t1) then 17 else t1.e end>=a)}
+} {17}
+do_test randexpr-2.1644 {
+  db eval {SELECT coalesce((select max((abs(t1.b*t1.d*case when f*t1.d<a*17* -t1.c+coalesce((select max(a) from t1 where 11>b),t1.d*19)*e+c+t1.d then t1.c when exists(select 1 from t1 where 13>=e) then t1.e else f end-f*e)/abs(13))) from t1 where (a)<=t1.d),13) | e FROM t1 WHERE +t1.c>t1.d}
+} {}
+do_test randexpr-2.1645 {
+  db eval {SELECT coalesce((select max((abs(t1.b*t1.d*case when f*t1.d<a*17* -t1.c+coalesce((select max(a) from t1 where 11>b),t1.d*19)*e+c+t1.d then t1.c when exists(select 1 from t1 where 13>=e) then t1.e else f end-f*e)/abs(13))) from t1 where (a)<=t1.d),13) | e FROM t1 WHERE NOT (+t1.c>t1.d)}
+} {1823220}
+do_test randexpr-2.1646 {
+  db eval {SELECT coalesce((select max((abs(t1.b*t1.d*case when f*t1.d<a*17* -t1.c+coalesce((select max(a) from t1 where 11>b),t1.d*19)*e+c+t1.d then t1.c when exists(select 1 from t1 where 13>=e) then t1.e else f end-f*e)/abs(13))) from t1 where (a)<=t1.d),13) & e FROM t1 WHERE NOT (+t1.c>t1.d)}
+} {356}
+do_test randexpr-2.1647 {
+  db eval {SELECT case when not exists(select 1 from t1 where 17>=19) or t1.c in (select min(19)-(cast(avg(f) AS integer)) from t1 union select cast(avg(19) AS integer) from t1) and e in (select ~+count(distinct 19)*max(13) from t1 union select min(17+d) from t1) or t1.f in (select count(*) from t1 union select (max(a)) from t1) then coalesce((select  -d- -t1.d from t1 where b in (select cast(avg(c) AS integer) from t1 union select (count(*)) from t1) or b<=11),e) else t1.e end FROM t1 WHERE a< -13}
+} {}
+do_test randexpr-2.1648 {
+  db eval {SELECT case when not exists(select 1 from t1 where 17>=19) or t1.c in (select min(19)-(cast(avg(f) AS integer)) from t1 union select cast(avg(19) AS integer) from t1) and e in (select ~+count(distinct 19)*max(13) from t1 union select min(17+d) from t1) or t1.f in (select count(*) from t1 union select (max(a)) from t1) then coalesce((select  -d- -t1.d from t1 where b in (select cast(avg(c) AS integer) from t1 union select (count(*)) from t1) or b<=11),e) else t1.e end FROM t1 WHERE NOT (a< -13)}
+} {500}
+do_test randexpr-2.1649 {
+  db eval {SELECT f+case when 17-t1.f in (select ~count(distinct (abs((abs(c)/abs(c)))/abs((abs(11)/abs(+case  -t1.a when t1.d then  -13 else 17 end))))-t1.c) from t1 union select ~case cast(avg(t1.c) AS integer) when  -~ -count(*)*max((t1.f))+count(*) then (min(d)) else max(a) end-count(distinct t1.a)+ -count(*)-count(*) from t1) then d when b not between t1.f and t1.e then a else 11 end+t1.a FROM t1 WHERE (exists(select 1 from t1 where case when exists(select 1 from t1 where case when (t1.e+case (t1.b) when f then case t1.c when 11 |  -13-coalesce((select max(d) from t1 where c not in ( -t1.e,t1.c,17) and t1.c<17),e)*17+t1.a then t1.b else 11 end else d end)+t1.f not in (d,13,d) then f else t1.d end not between (c) and f) then t1.e else f end-t1.c in (t1.b,t1.a,f)))}
+} {}
+do_test randexpr-2.1650 {
+  db eval {SELECT f+case when 17-t1.f in (select ~count(distinct (abs((abs(c)/abs(c)))/abs((abs(11)/abs(+case  -t1.a when t1.d then  -13 else 17 end))))-t1.c) from t1 union select ~case cast(avg(t1.c) AS integer) when  -~ -count(*)*max((t1.f))+count(*) then (min(d)) else max(a) end-count(distinct t1.a)+ -count(*)-count(*) from t1) then d when b not between t1.f and t1.e then a else 11 end+t1.a FROM t1 WHERE NOT ((exists(select 1 from t1 where case when exists(select 1 from t1 where case when (t1.e+case (t1.b) when f then case t1.c when 11 |  -13-coalesce((select max(d) from t1 where c not in ( -t1.e,t1.c,17) and t1.c<17),e)*17+t1.a then t1.b else 11 end else d end)+t1.f not in (d,13,d) then f else t1.d end not between (c) and f) then t1.e else f end-t1.c in (t1.b,t1.a,f))))}
+} {800}
+do_test randexpr-2.1651 {
+  db eval {SELECT case ~t1.d when case when c in (select count(*) from t1 union select +(( -min(17)-~cast(avg(t1.c) AS integer)))* -min(t1.f)-max(t1.d)*count(*) | cast(avg(17) AS integer) from t1) then 17*e*t1.f | t1.e else 19-coalesce((select max(t1.f) from t1 where not exists(select 1 from t1 where t1.c>=e)),t1.f) end | 13+13 then 17 else t1.f end FROM t1 WHERE (not exists(select 1 from t1 where +c-19 in (select (~((min(b)))-+count(*) | cast(avg(case when 11 in (select (abs((t1.b))/abs(e)) from t1 union select (17) from t1) then t1.c when  -a<=b then t1.a else t1.e end) AS integer)++case max(t1.b) when cast(avg(c) AS integer) then count(*) else cast(avg(f) AS integer) end |  -count(*)-(count(*))*max(t1.e)*count(*)*cast(avg(a) AS integer))+min(11) from t1 union select max((d)) from t1)))}
+} {600}
+do_test randexpr-2.1652 {
+  db eval {SELECT case ~t1.d when case when c in (select count(*) from t1 union select +(( -min(17)-~cast(avg(t1.c) AS integer)))* -min(t1.f)-max(t1.d)*count(*) | cast(avg(17) AS integer) from t1) then 17*e*t1.f | t1.e else 19-coalesce((select max(t1.f) from t1 where not exists(select 1 from t1 where t1.c>=e)),t1.f) end | 13+13 then 17 else t1.f end FROM t1 WHERE NOT ((not exists(select 1 from t1 where +c-19 in (select (~((min(b)))-+count(*) | cast(avg(case when 11 in (select (abs((t1.b))/abs(e)) from t1 union select (17) from t1) then t1.c when  -a<=b then t1.a else t1.e end) AS integer)++case max(t1.b) when cast(avg(c) AS integer) then count(*) else cast(avg(f) AS integer) end |  -count(*)-(count(*))*max(t1.e)*count(*)*cast(avg(a) AS integer))+min(11) from t1 union select max((d)) from t1))))}
+} {}
+do_test randexpr-2.1653 {
+  db eval {SELECT case ~t1.d when case when c in (select count(*) from t1 union select +(( -min(17)-~cast(avg(t1.c) AS integer)))* -min(t1.f)-max(t1.d)*count(*) & cast(avg(17) AS integer) from t1) then 17*e*t1.f & t1.e else 19-coalesce((select max(t1.f) from t1 where not exists(select 1 from t1 where t1.c>=e)),t1.f) end & 13+13 then 17 else t1.f end FROM t1 WHERE (not exists(select 1 from t1 where +c-19 in (select (~((min(b)))-+count(*) | cast(avg(case when 11 in (select (abs((t1.b))/abs(e)) from t1 union select (17) from t1) then t1.c when  -a<=b then t1.a else t1.e end) AS integer)++case max(t1.b) when cast(avg(c) AS integer) then count(*) else cast(avg(f) AS integer) end |  -count(*)-(count(*))*max(t1.e)*count(*)*cast(avg(a) AS integer))+min(11) from t1 union select max((d)) from t1)))}
+} {600}
+do_test randexpr-2.1654 {
+  db eval {SELECT 19 | case when not (select min(17) from t1)>t1.e then coalesce((select max(coalesce((select b from t1 where (t1.a not in (a | t1.c,t1.d,19) or not exists(select 1 from t1 where t1.b in (select t1.d from t1 union select a from t1)) and (a in (select count(*) from t1 union select max(t1.b) from t1) and t1.c in (t1.b,f,t1.d)))),t1.c)) from t1 where f=d and  -b>c),t1.f)-t1.c when c in ((a),11,t1.c) then 13 else 13 end-c FROM t1 WHERE (t1.e)*case when +a*t1.f*t1.e>=+d*a+b-t1.f*~13 | t1.d*11-f-~f+17-coalesce((select max( -f) from t1 where b<t1.a),t1.b) | a-(17)-13-f then e else c end<17}
+} {}
+do_test randexpr-2.1655 {
+  db eval {SELECT 19 | case when not (select min(17) from t1)>t1.e then coalesce((select max(coalesce((select b from t1 where (t1.a not in (a | t1.c,t1.d,19) or not exists(select 1 from t1 where t1.b in (select t1.d from t1 union select a from t1)) and (a in (select count(*) from t1 union select max(t1.b) from t1) and t1.c in (t1.b,f,t1.d)))),t1.c)) from t1 where f=d and  -b>c),t1.f)-t1.c when c in ((a),11,t1.c) then 13 else 13 end-c FROM t1 WHERE NOT ((t1.e)*case when +a*t1.f*t1.e>=+d*a+b-t1.f*~13 | t1.d*11-f-~f+17-coalesce((select max( -f) from t1 where b<t1.a),t1.b) | a-(17)-13-f then e else c end<17)}
+} {19}
+do_test randexpr-2.1656 {
+  db eval {SELECT 19 & case when not (select min(17) from t1)>t1.e then coalesce((select max(coalesce((select b from t1 where (t1.a not in (a & t1.c,t1.d,19) or not exists(select 1 from t1 where t1.b in (select t1.d from t1 union select a from t1)) and (a in (select count(*) from t1 union select max(t1.b) from t1) and t1.c in (t1.b,f,t1.d)))),t1.c)) from t1 where f=d and  -b>c),t1.f)-t1.c when c in ((a),11,t1.c) then 13 else 13 end-c FROM t1 WHERE NOT ((t1.e)*case when +a*t1.f*t1.e>=+d*a+b-t1.f*~13 | t1.d*11-f-~f+17-coalesce((select max( -f) from t1 where b<t1.a),t1.b) | a-(17)-13-f then e else c end<17)}
+} {0}
+do_test randexpr-2.1657 {
+  db eval {SELECT case when not exists(select 1 from t1 where not not not d=17) then t1.b when (not coalesce((select coalesce((select max(d) from t1 where c+c>t1.c),11)*e*t1.e from t1 where e<=t1.d),t1.a)*f<t1.b) then coalesce((select case when 19>=11 then e when t1.a in (select e from t1 union select b from t1) then t1.b-t1.a else e end from t1 where a=t1.a), -17) else e end FROM t1 WHERE not exists(select 1 from t1 where t1.e in (select max((abs(~+t1.a-t1.c*a)/abs(17))) from t1 union select min(11*t1.c+t1.f) from t1))}
+} {500}
+do_test randexpr-2.1658 {
+  db eval {SELECT case when not exists(select 1 from t1 where not not not d=17) then t1.b when (not coalesce((select coalesce((select max(d) from t1 where c+c>t1.c),11)*e*t1.e from t1 where e<=t1.d),t1.a)*f<t1.b) then coalesce((select case when 19>=11 then e when t1.a in (select e from t1 union select b from t1) then t1.b-t1.a else e end from t1 where a=t1.a), -17) else e end FROM t1 WHERE NOT (not exists(select 1 from t1 where t1.e in (select max((abs(~+t1.a-t1.c*a)/abs(17))) from t1 union select min(11*t1.c+t1.f) from t1)))}
+} {}
+do_test randexpr-2.1659 {
+  db eval {SELECT coalesce((select coalesce((select max(case when not a not in ((abs(11)/abs(coalesce((select t1.d from t1 where 17 in (select count(*) from t1 union select count(distinct t1.a) from t1)),b)*t1.e*c)),t1.a,t1.b) or t1.c<=t1.f or (t1.d>= -a) then (select cast(avg(~t1.f-t1.f) AS integer) from t1) else 17 end) from t1 where t1.b<=c and t1.b<=a),11) from t1 where exists(select 1 from t1 where e<c) and 11 not between t1.d and c),a) FROM t1 WHERE e>=(select min(coalesce((select max(19) from t1 where not exists(select 1 from t1 where (select count(distinct +case when coalesce((select max(case when e<a then b else (c) end) from t1 where f<>t1.d),t1.d) in (select abs(cast(avg(t1.d) AS integer)-min(t1.c)) from t1 union select  -cast(avg(19) AS integer) from t1) then b when t1.e< -t1.c then t1.b else t1.c end-19*e) from t1)<=a)),17))+ -(max(a))- -cast(avg(11) AS integer)+ -count(distinct c) from t1)-11}
+} {100}
+do_test randexpr-2.1660 {
+  db eval {SELECT coalesce((select coalesce((select max(case when not a not in ((abs(11)/abs(coalesce((select t1.d from t1 where 17 in (select count(*) from t1 union select count(distinct t1.a) from t1)),b)*t1.e*c)),t1.a,t1.b) or t1.c<=t1.f or (t1.d>= -a) then (select cast(avg(~t1.f-t1.f) AS integer) from t1) else 17 end) from t1 where t1.b<=c and t1.b<=a),11) from t1 where exists(select 1 from t1 where e<c) and 11 not between t1.d and c),a) FROM t1 WHERE NOT (e>=(select min(coalesce((select max(19) from t1 where not exists(select 1 from t1 where (select count(distinct +case when coalesce((select max(case when e<a then b else (c) end) from t1 where f<>t1.d),t1.d) in (select abs(cast(avg(t1.d) AS integer)-min(t1.c)) from t1 union select  -cast(avg(19) AS integer) from t1) then b when t1.e< -t1.c then t1.b else t1.c end-19*e) from t1)<=a)),17))+ -(max(a))- -cast(avg(11) AS integer)+ -count(distinct c) from t1)-11)}
+} {}
+do_test randexpr-2.1661 {
+  db eval {SELECT e*(case when +t1.c+t1.e+f<=13 then (select case cast(avg(coalesce((select (t1.f*a)*11 from t1 where c<>t1.a),b)) AS integer)+cast(avg(b) AS integer)+max( -b)-min(e) when max(11) then cast(avg(t1.e) AS integer) else cast(avg(t1.b) AS integer) end from t1) when ~11*t1.d<=t1.b or (t1.e=t1.a) then t1.b else  -19 end)+e FROM t1 WHERE a>13*d+t1.e+c}
+} {}
+do_test randexpr-2.1662 {
+  db eval {SELECT e*(case when +t1.c+t1.e+f<=13 then (select case cast(avg(coalesce((select (t1.f*a)*11 from t1 where c<>t1.a),b)) AS integer)+cast(avg(b) AS integer)+max( -b)-min(e) when max(11) then cast(avg(t1.e) AS integer) else cast(avg(t1.b) AS integer) end from t1) when ~11*t1.d<=t1.b or (t1.e=t1.a) then t1.b else  -19 end)+e FROM t1 WHERE NOT (a>13*d+t1.e+c)}
+} {100500}
+do_test randexpr-2.1663 {
+  db eval {SELECT (abs(t1.d-t1.b)/abs(t1.c))+t1.a*coalesce((select max(coalesce((select max(~11+11) from t1 where e-a>=case when 11*t1.d+13+(select cast(avg(t1.d+f) AS integer) from t1)-d+t1.d-b not between a and a then e else coalesce((select e from t1 where d>b and b between 11 and t1.d),t1.b) end), -t1.b)) from t1 where t1.e<=c),17)+ -t1.d FROM t1 WHERE case when (19>b) then case (abs(t1.d+case when not exists(select 1 from t1 where f in (19,d,11) and f not between t1.e and a) then (19) when a<=t1.d then 17 else t1.c end* -c*13)/abs(d))*f when 19 then t1.c else  - - -t1.d end when c in (select max(t1.e) from t1 union select ( - -abs(cast(avg(t1.f) AS integer))-case cast(avg(a) AS integer) when (min(t1.f)) then max(13) else max(11) end |  -((min(11)))+max((a))) from t1) then c else  -b end*t1.d>d}
+} {}
+do_test randexpr-2.1664 {
+  db eval {SELECT (abs(t1.d-t1.b)/abs(t1.c))+t1.a*coalesce((select max(coalesce((select max(~11+11) from t1 where e-a>=case when 11*t1.d+13+(select cast(avg(t1.d+f) AS integer) from t1)-d+t1.d-b not between a and a then e else coalesce((select e from t1 where d>b and b between 11 and t1.d),t1.b) end), -t1.b)) from t1 where t1.e<=c),17)+ -t1.d FROM t1 WHERE NOT (case when (19>b) then case (abs(t1.d+case when not exists(select 1 from t1 where f in (19,d,11) and f not between t1.e and a) then (19) when a<=t1.d then 17 else t1.c end* -c*13)/abs(d))*f when 19 then t1.c else  - - -t1.d end when c in (select max(t1.e) from t1 union select ( - -abs(cast(avg(t1.f) AS integer))-case cast(avg(a) AS integer) when (min(t1.f)) then max(13) else max(11) end |  -((min(11)))+max((a))) from t1) then c else  -b end*t1.d>d)}
+} {1300}
+do_test randexpr-2.1665 {
+  db eval {SELECT ~t1.a*(case when not not exists(select 1 from t1 where coalesce((select max(t1.c) from t1 where (select count(distinct b | case 13 | case when  -11<>a then t1.a else b end when t1.e then t1.b else d end*t1.f) from t1)<>17 or t1.a not between c and t1.a),11) in (t1.e,c,c)) and  -11>f then t1.d else f end-17)+ -(t1.b) FROM t1 WHERE (13-coalesce((select  -case when 19+c=a then f else 11 end*(e) from t1 where (t1.b in (select t1.a from t1 union select 11 from t1))),(t1.f))*e+f*(t1.f)=a and not 17 in (select max(f) from t1 union select max(19) from t1) or 19<>t1.f) and 13 between f and f and d<>b}
+} {}
+do_test randexpr-2.1666 {
+  db eval {SELECT ~t1.a*(case when not not exists(select 1 from t1 where coalesce((select max(t1.c) from t1 where (select count(distinct b | case 13 | case when  -11<>a then t1.a else b end when t1.e then t1.b else d end*t1.f) from t1)<>17 or t1.a not between c and t1.a),11) in (t1.e,c,c)) and  -11>f then t1.d else f end-17)+ -(t1.b) FROM t1 WHERE NOT ((13-coalesce((select  -case when 19+c=a then f else 11 end*(e) from t1 where (t1.b in (select t1.a from t1 union select 11 from t1))),(t1.f))*e+f*(t1.f)=a and not 17 in (select max(f) from t1 union select max(19) from t1) or 19<>t1.f) and 13 between f and f and d<>b)}
+} {-59083}
+do_test randexpr-2.1667 {
+  db eval {SELECT ~t1.a*(case when not not exists(select 1 from t1 where coalesce((select max(t1.c) from t1 where (select count(distinct b & case 13 & case when  -11<>a then t1.a else b end when t1.e then t1.b else d end*t1.f) from t1)<>17 or t1.a not between c and t1.a),11) in (t1.e,c,c)) and  -11>f then t1.d else f end-17)+ -(t1.b) FROM t1 WHERE NOT ((13-coalesce((select  -case when 19+c=a then f else 11 end*(e) from t1 where (t1.b in (select t1.a from t1 union select 11 from t1))),(t1.f))*e+f*(t1.f)=a and not 17 in (select max(f) from t1 union select max(19) from t1) or 19<>t1.f) and 13 between f and f and d<>b)}
+} {-59083}
+do_test randexpr-2.1668 {
+  db eval {SELECT ~13+case when (t1.e-~b+13*case when b>(select max(case when (19*f in (select ~count(distinct a)+count(distinct (e)) from t1 union select (cast(avg(t1.c) AS integer)) from t1)) then coalesce((select  -19 from t1 where t1.f<=c or 19 not in (t1.c, -b,19)),t1.e) when t1.e>c then e else 13 end | f) from t1) then 13 else d end in (select t1.f from t1 union select c from t1)) then t1.f when not exists(select 1 from t1 where a between f and f) then (d) else t1.c end FROM t1 WHERE exists(select 1 from t1 where case when 19 in (19,+(abs(case t1.f when e then case (select +cast(avg(a) AS integer)*min(e) from t1) when case when 19 not between  -t1.c and d then 11 else t1.f end then f else t1.c end else e end+17+b)/abs(t1.d))*13,t1.f) then a when t1.d not in (f,d, -c) then t1.c else t1.b end not between d and c and t1.b not between t1.b and f)}
+} {}
+do_test randexpr-2.1669 {
+  db eval {SELECT ~13+case when (t1.e-~b+13*case when b>(select max(case when (19*f in (select ~count(distinct a)+count(distinct (e)) from t1 union select (cast(avg(t1.c) AS integer)) from t1)) then coalesce((select  -19 from t1 where t1.f<=c or 19 not in (t1.c, -b,19)),t1.e) when t1.e>c then e else 13 end | f) from t1) then 13 else d end in (select t1.f from t1 union select c from t1)) then t1.f when not exists(select 1 from t1 where a between f and f) then (d) else t1.c end FROM t1 WHERE NOT (exists(select 1 from t1 where case when 19 in (19,+(abs(case t1.f when e then case (select +cast(avg(a) AS integer)*min(e) from t1) when case when 19 not between  -t1.c and d then 11 else t1.f end then f else t1.c end else e end+17+b)/abs(t1.d))*13,t1.f) then a when t1.d not in (f,d, -c) then t1.c else t1.b end not between d and c and t1.b not between t1.b and f))}
+} {386}
+do_test randexpr-2.1670 {
+  db eval {SELECT ~13+case when (t1.e-~b+13*case when b>(select max(case when (19*f in (select ~count(distinct a)+count(distinct (e)) from t1 union select (cast(avg(t1.c) AS integer)) from t1)) then coalesce((select  -19 from t1 where t1.f<=c or 19 not in (t1.c, -b,19)),t1.e) when t1.e>c then e else 13 end & f) from t1) then 13 else d end in (select t1.f from t1 union select c from t1)) then t1.f when not exists(select 1 from t1 where a between f and f) then (d) else t1.c end FROM t1 WHERE NOT (exists(select 1 from t1 where case when 19 in (19,+(abs(case t1.f when e then case (select +cast(avg(a) AS integer)*min(e) from t1) when case when 19 not between  -t1.c and d then 11 else t1.f end then f else t1.c end else e end+17+b)/abs(t1.d))*13,t1.f) then a when t1.d not in (f,d, -c) then t1.c else t1.b end not between d and c and t1.b not between t1.b and f))}
+} {386}
+do_test randexpr-2.1671 {
+  db eval {SELECT  -case coalesce((select max((case when a>t1.c | t1.a then (select abs(count(distinct a)) from t1) when (e not in (coalesce((select c from t1 where exists(select 1 from t1 where c<=11) and t1.a>e),e),d,a)) or t1.d<>e then t1.c else c end)- -11*b) from t1 where not exists(select 1 from t1 where not (c in ((t1.e),d,19)))),(t1.c))*b when 17 then t1.b else 19 end FROM t1 WHERE e<=coalesce((select t1.b from t1 where coalesce((select c*19 | (a) from t1 where not exists(select 1 from t1 where 19>=13 or case when coalesce((select max(19) from t1 where t1.e=t1.d or t1.f<>e),t1.f)>19 and t1.f=t1.d then 11+ -t1.d when  -t1.f not between f and f then t1.a else d end not in ((t1.a),13,t1.a) and c in (select (13) from t1 union select f from t1) and 17<(f)) and t1.a<>t1.e),t1.d)>=t1.c),t1.f)}
+} {}
+do_test randexpr-2.1672 {
+  db eval {SELECT  -case coalesce((select max((case when a>t1.c | t1.a then (select abs(count(distinct a)) from t1) when (e not in (coalesce((select c from t1 where exists(select 1 from t1 where c<=11) and t1.a>e),e),d,a)) or t1.d<>e then t1.c else c end)- -11*b) from t1 where not exists(select 1 from t1 where not (c in ((t1.e),d,19)))),(t1.c))*b when 17 then t1.b else 19 end FROM t1 WHERE NOT (e<=coalesce((select t1.b from t1 where coalesce((select c*19 | (a) from t1 where not exists(select 1 from t1 where 19>=13 or case when coalesce((select max(19) from t1 where t1.e=t1.d or t1.f<>e),t1.f)>19 and t1.f=t1.d then 11+ -t1.d when  -t1.f not between f and f then t1.a else d end not in ((t1.a),13,t1.a) and c in (select (13) from t1 union select f from t1) and 17<(f)) and t1.a<>t1.e),t1.d)>=t1.c),t1.f))}
+} {-19}
+do_test randexpr-2.1673 {
+  db eval {SELECT  -case coalesce((select max((case when a>t1.c & t1.a then (select abs(count(distinct a)) from t1) when (e not in (coalesce((select c from t1 where exists(select 1 from t1 where c<=11) and t1.a>e),e),d,a)) or t1.d<>e then t1.c else c end)- -11*b) from t1 where not exists(select 1 from t1 where not (c in ((t1.e),d,19)))),(t1.c))*b when 17 then t1.b else 19 end FROM t1 WHERE NOT (e<=coalesce((select t1.b from t1 where coalesce((select c*19 | (a) from t1 where not exists(select 1 from t1 where 19>=13 or case when coalesce((select max(19) from t1 where t1.e=t1.d or t1.f<>e),t1.f)>19 and t1.f=t1.d then 11+ -t1.d when  -t1.f not between f and f then t1.a else d end not in ((t1.a),13,t1.a) and c in (select (13) from t1 union select f from t1) and 17<(f)) and t1.a<>t1.e),t1.d)>=t1.c),t1.f))}
+} {-19}
+do_test randexpr-2.1674 {
+  db eval {SELECT coalesce((select (11) from t1 where not e in (select  -min(d*13) from t1 union select count(distinct f) from t1)),t1.f*t1.d | t1.f) FROM t1 WHERE  -t1.c*d>case d when ~coalesce((select max(e) from t1 where exists(select 1 from t1 where not exists(select 1 from t1 where not e=c))),+coalesce((select +t1.e from t1 where not exists(select 1 from t1 where c>=t1.b)),(abs( -t1.c+case t1.c when ~~t1.c+a-t1.c then coalesce((select max(case when t1.b<=c then 19 else f end) from t1 where 13<b),d) else t1.d end)/abs(a))*(d))) then  -t1.e else (13) end}
+} {}
+do_test randexpr-2.1675 {
+  db eval {SELECT coalesce((select (11) from t1 where not e in (select  -min(d*13) from t1 union select count(distinct f) from t1)),t1.f*t1.d | t1.f) FROM t1 WHERE NOT ( -t1.c*d>case d when ~coalesce((select max(e) from t1 where exists(select 1 from t1 where not exists(select 1 from t1 where not e=c))),+coalesce((select +t1.e from t1 where not exists(select 1 from t1 where c>=t1.b)),(abs( -t1.c+case t1.c when ~~t1.c+a-t1.c then coalesce((select max(case when t1.b<=c then 19 else f end) from t1 where 13<b),d) else t1.d end)/abs(a))*(d))) then  -t1.e else (13) end)}
+} {11}
+do_test randexpr-2.1676 {
+  db eval {SELECT coalesce((select (11) from t1 where not e in (select  -min(d*13) from t1 union select count(distinct f) from t1)),t1.f*t1.d & t1.f) FROM t1 WHERE NOT ( -t1.c*d>case d when ~coalesce((select max(e) from t1 where exists(select 1 from t1 where not exists(select 1 from t1 where not e=c))),+coalesce((select +t1.e from t1 where not exists(select 1 from t1 where c>=t1.b)),(abs( -t1.c+case t1.c when ~~t1.c+a-t1.c then coalesce((select max(case when t1.b<=c then 19 else f end) from t1 where 13<b),d) else t1.d end)/abs(a))*(d))) then  -t1.e else (13) end)}
+} {11}
+do_test randexpr-2.1677 {
+  db eval {SELECT +case when t1.e>=(select max(17) from t1) then case 11 when e then coalesce((select 17 from t1 where not exists(select 1 from t1 where t1.d in (select t1.a from t1 union select e from t1) and e=case when 11<19 and t1.e<19 then t1.e when t1.c in (t1.b,t1.e,t1.d) then 13 else 13 end and e<=d or b between 19 and t1.a or t1.a<=(13))),t1.a) else t1.e-t1.d end*t1.a when  -11 not in (17,t1.d,a) then t1.c else b end*19 FROM t1 WHERE not t1.b>t1.e or t1.d not in (~t1.f,d+case when (b+(abs(19*~t1.c | t1.b*d*(b)-t1.e-t1.e+a)/abs(t1.c)) not in (17,b,t1.e)) then 13+f else b end-t1.f,t1.e) or t1.e not in (f,a,t1.d)}
+} {190000}
+do_test randexpr-2.1678 {
+  db eval {SELECT +case when t1.e>=(select max(17) from t1) then case 11 when e then coalesce((select 17 from t1 where not exists(select 1 from t1 where t1.d in (select t1.a from t1 union select e from t1) and e=case when 11<19 and t1.e<19 then t1.e when t1.c in (t1.b,t1.e,t1.d) then 13 else 13 end and e<=d or b between 19 and t1.a or t1.a<=(13))),t1.a) else t1.e-t1.d end*t1.a when  -11 not in (17,t1.d,a) then t1.c else b end*19 FROM t1 WHERE NOT (not t1.b>t1.e or t1.d not in (~t1.f,d+case when (b+(abs(19*~t1.c | t1.b*d*(b)-t1.e-t1.e+a)/abs(t1.c)) not in (17,b,t1.e)) then 13+f else b end-t1.f,t1.e) or t1.e not in (f,a,t1.d))}
+} {}
+do_test randexpr-2.1679 {
+  db eval {SELECT t1.e | t1.b+a*coalesce((select t1.a from t1 where ~(d)-f<>e-c or 17+f in (select  -(~case max(t1.c) when abs(count(*)) then abs( - -cast(avg(b) AS integer)*count(*)) else cast(avg(t1.c) AS integer) end) from t1 union select count(distinct (11)) from t1) and exists(select 1 from t1 where not 13>t1.e) or t1.c<d),~b)- -b FROM t1 WHERE d between t1.f and t1.c}
+} {}
+do_test randexpr-2.1680 {
+  db eval {SELECT t1.e | t1.b+a*coalesce((select t1.a from t1 where ~(d)-f<>e-c or 17+f in (select  -(~case max(t1.c) when abs(count(*)) then abs( - -cast(avg(b) AS integer)*count(*)) else cast(avg(t1.c) AS integer) end) from t1 union select count(distinct (11)) from t1) and exists(select 1 from t1 where not 13>t1.e) or t1.c<d),~b)- -b FROM t1 WHERE NOT (d between t1.f and t1.c)}
+} {10740}
+do_test randexpr-2.1681 {
+  db eval {SELECT t1.e & t1.b+a*coalesce((select t1.a from t1 where ~(d)-f<>e-c or 17+f in (select  -(~case max(t1.c) when abs(count(*)) then abs( - -cast(avg(b) AS integer)*count(*)) else cast(avg(t1.c) AS integer) end) from t1 union select count(distinct (11)) from t1) and exists(select 1 from t1 where not 13>t1.e) or t1.c<d),~b)- -b FROM t1 WHERE NOT (d between t1.f and t1.c)}
+} {160}
+do_test randexpr-2.1682 {
+  db eval {SELECT ~(select +~count(distinct 17)*count(distinct t1.e) from t1)-t1.e+a*11-case when 13<>t1.b then 19 when case when case (select ( -max(c)) from t1) when 11 then d else e end*t1.d<>d then a else 11 end=t1.b or 17=d then b else t1.e end+11+t1.a*a-e FROM t1 WHERE coalesce((select coalesce((select max(c) from t1 where  -+ -e-t1.d*case when coalesce((select d from t1 where (c=a)),f) between t1.b and t1.b or (13)<>c and e in (t1.e,e,(t1.a)) then b*t1.c else b end+t1.c in (select t1.f from t1 union select t1.b from t1)),19) from t1 where t1.f in (select count(*) from t1 union select cast(avg(t1.e) AS integer)*min((a))*+(max(t1.b))+max(17) from t1)),t1.d)< -e}
+} {}
+do_test randexpr-2.1683 {
+  db eval {SELECT ~(select +~count(distinct 17)*count(distinct t1.e) from t1)-t1.e+a*11-case when 13<>t1.b then 19 when case when case (select ( -max(c)) from t1) when 11 then d else e end*t1.d<>d then a else 11 end=t1.b or 17=d then b else t1.e end+11+t1.a*a-e FROM t1 WHERE NOT (coalesce((select coalesce((select max(c) from t1 where  -+ -e-t1.d*case when coalesce((select d from t1 where (c=a)),f) between t1.b and t1.b or (13)<>c and e in (t1.e,e,(t1.a)) then b*t1.c else b end+t1.c in (select t1.f from t1 union select t1.b from t1)),19) from t1 where t1.f in (select count(*) from t1 union select cast(avg(t1.e) AS integer)*min((a))*+(max(t1.b))+max(17) from t1)),t1.d)< -e)}
+} {10093}
+do_test randexpr-2.1684 {
+  db eval {SELECT coalesce((select max(case when f<=(17-coalesce((select ~t1.e+11 from t1 where t1.f in (select c from t1 union select b from t1)),f)) then  -case when e>case when 17+ -t1.b in (select cast(avg(f) AS integer) from t1 union select min(c-17+a) from t1) then  -17 else t1.d end then a when 19<11 then t1.a else t1.b end | t1.f else a end) from t1 where e between a and d),19) FROM t1 WHERE case 19 when ((select max(f) from t1)) then 13 else t1.d end-t1.c>a-b-t1.d}
+} {19}
+do_test randexpr-2.1685 {
+  db eval {SELECT coalesce((select max(case when f<=(17-coalesce((select ~t1.e+11 from t1 where t1.f in (select c from t1 union select b from t1)),f)) then  -case when e>case when 17+ -t1.b in (select cast(avg(f) AS integer) from t1 union select min(c-17+a) from t1) then  -17 else t1.d end then a when 19<11 then t1.a else t1.b end | t1.f else a end) from t1 where e between a and d),19) FROM t1 WHERE NOT (case 19 when ((select max(f) from t1)) then 13 else t1.d end-t1.c>a-b-t1.d)}
+} {}
+do_test randexpr-2.1686 {
+  db eval {SELECT coalesce((select max(case when f<=(17-coalesce((select ~t1.e+11 from t1 where t1.f in (select c from t1 union select b from t1)),f)) then  -case when e>case when 17+ -t1.b in (select cast(avg(f) AS integer) from t1 union select min(c-17+a) from t1) then  -17 else t1.d end then a when 19<11 then t1.a else t1.b end & t1.f else a end) from t1 where e between a and d),19) FROM t1 WHERE case 19 when ((select max(f) from t1)) then 13 else t1.d end-t1.c>a-b-t1.d}
+} {19}
+do_test randexpr-2.1687 {
+  db eval {SELECT case when (select case min(t1.b) when max(13) | +max(t1.e)*max(f) then abs( -+count(*)) else max(t1.f) end from t1)*t1.a+(abs(case 19 when 19 then d else ((13)) end)/abs(13))+(19) between f and 13 or (not not 17<e) then (abs(17)/abs((f))) when f in (select min(f) from t1 union select cast(avg(11) AS integer) from t1) then c else b end FROM t1 WHERE exists(select 1 from t1 where f<13)}
+} {}
+do_test randexpr-2.1688 {
+  db eval {SELECT case when (select case min(t1.b) when max(13) | +max(t1.e)*max(f) then abs( -+count(*)) else max(t1.f) end from t1)*t1.a+(abs(case 19 when 19 then d else ((13)) end)/abs(13))+(19) between f and 13 or (not not 17<e) then (abs(17)/abs((f))) when f in (select min(f) from t1 union select cast(avg(11) AS integer) from t1) then c else b end FROM t1 WHERE NOT (exists(select 1 from t1 where f<13))}
+} {0}
+do_test randexpr-2.1689 {
+  db eval {SELECT case when (select case min(t1.b) when max(13) & +max(t1.e)*max(f) then abs( -+count(*)) else max(t1.f) end from t1)*t1.a+(abs(case 19 when 19 then d else ((13)) end)/abs(13))+(19) between f and 13 or (not not 17<e) then (abs(17)/abs((f))) when f in (select min(f) from t1 union select cast(avg(11) AS integer) from t1) then c else b end FROM t1 WHERE NOT (exists(select 1 from t1 where f<13))}
+} {0}
+do_test randexpr-2.1690 {
+  db eval {SELECT coalesce((select +(select max(coalesce((select (abs(((t1.e)+b))/abs(f))+e from t1 where (select (case min(t1.b) when count(*) then count(*) else abs(++count(distinct t1.a)+cast(avg(d) AS integer)) end)+min(f)-max(11) from t1)<>~17),t1.e+(select count(*) from t1) | 11-coalesce((select 13 from t1 where 11 not in ( -t1.f,t1.e,t1.f)),t1.b))+ -(t1.c)) from t1) from t1 where t1.a=(13)), -a)*e FROM t1 WHERE not exists(select 1 from t1 where (select count(distinct t1.e) from t1)<=coalesce((select case when not exists(select 1 from t1 where e=t1.b*coalesce((select max(+b) from t1 where exists(select 1 from t1 where not (not not exists(select 1 from t1 where t1.c in (select 11 from t1 union select 19+13 from t1)))) and not t1.b<a),case when b in (t1.c,t1.e,f) and b=t1.a then ~b when 13 not between d and 11 then  -t1.d-c else t1.d end)) then (abs((11))/abs(17)) else b end from t1 where t1.b not in (t1.f,t1.e,17)), -t1.d))}
+} {-50000}
+do_test randexpr-2.1691 {
+  db eval {SELECT coalesce((select +(select max(coalesce((select (abs(((t1.e)+b))/abs(f))+e from t1 where (select (case min(t1.b) when count(*) then count(*) else abs(++count(distinct t1.a)+cast(avg(d) AS integer)) end)+min(f)-max(11) from t1)<>~17),t1.e+(select count(*) from t1) | 11-coalesce((select 13 from t1 where 11 not in ( -t1.f,t1.e,t1.f)),t1.b))+ -(t1.c)) from t1) from t1 where t1.a=(13)), -a)*e FROM t1 WHERE NOT (not exists(select 1 from t1 where (select count(distinct t1.e) from t1)<=coalesce((select case when not exists(select 1 from t1 where e=t1.b*coalesce((select max(+b) from t1 where exists(select 1 from t1 where not (not not exists(select 1 from t1 where t1.c in (select 11 from t1 union select 19+13 from t1)))) and not t1.b<a),case when b in (t1.c,t1.e,f) and b=t1.a then ~b when 13 not between d and 11 then  -t1.d-c else t1.d end)) then (abs((11))/abs(17)) else b end from t1 where t1.b not in (t1.f,t1.e,17)), -t1.d)))}
+} {}
+do_test randexpr-2.1692 {
+  db eval {SELECT coalesce((select +(select max(coalesce((select (abs(((t1.e)+b))/abs(f))+e from t1 where (select (case min(t1.b) when count(*) then count(*) else abs(++count(distinct t1.a)+cast(avg(d) AS integer)) end)+min(f)-max(11) from t1)<>~17),t1.e+(select count(*) from t1) & 11-coalesce((select 13 from t1 where 11 not in ( -t1.f,t1.e,t1.f)),t1.b))+ -(t1.c)) from t1) from t1 where t1.a=(13)), -a)*e FROM t1 WHERE not exists(select 1 from t1 where (select count(distinct t1.e) from t1)<=coalesce((select case when not exists(select 1 from t1 where e=t1.b*coalesce((select max(+b) from t1 where exists(select 1 from t1 where not (not not exists(select 1 from t1 where t1.c in (select 11 from t1 union select 19+13 from t1)))) and not t1.b<a),case when b in (t1.c,t1.e,f) and b=t1.a then ~b when 13 not between d and 11 then  -t1.d-c else t1.d end)) then (abs((11))/abs(17)) else b end from t1 where t1.b not in (t1.f,t1.e,17)), -t1.d))}
+} {-50000}
+do_test randexpr-2.1693 {
+  db eval {SELECT ~~t1.b | 11+d*coalesce((select max(t1.f-a) from t1 where not exists(select 1 from t1 where (a-coalesce((select b from t1 where t1.f<case when not exists(select 1 from t1 where 11=b or d<>e) then t1.e*c else c end-13+t1.a),f)+t1.d- -t1.a)*t1.c<>f) and t1.b not between (e) and t1.c),f)+11*t1.f FROM t1 WHERE (17 in (select 13 from t1 union select case coalesce((select max( -case when not b in ((select  -+case max((b)) when cast(avg(13) AS integer) then count(*) else max(a) end+min(b)-max(d) from t1),coalesce((select t1.d from t1 where case when  -13 in ( -t1.e,f,t1.e) then t1.c else e end | 11<=(t1.b)),t1.c)-11,t1.e) then t1.f else 13 end) from t1 where b>=t1.e),f) when e then t1.c else c end from t1))}
+} {}
+do_test randexpr-2.1694 {
+  db eval {SELECT ~~t1.b | 11+d*coalesce((select max(t1.f-a) from t1 where not exists(select 1 from t1 where (a-coalesce((select b from t1 where t1.f<case when not exists(select 1 from t1 where 11=b or d<>e) then t1.e*c else c end-13+t1.a),f)+t1.d- -t1.a)*t1.c<>f) and t1.b not between (e) and t1.c),f)+11*t1.f FROM t1 WHERE NOT ((17 in (select 13 from t1 union select case coalesce((select max( -case when not b in ((select  -+case max((b)) when cast(avg(13) AS integer) then count(*) else max(a) end+min(b)-max(d) from t1),coalesce((select t1.d from t1 where case when  -13 in ( -t1.e,f,t1.e) then t1.c else e end | 11<=(t1.b)),t1.c)-11,t1.e) then t1.f else 13 end) from t1 where b>=t1.e),f) when e then t1.c else c end from t1)))}
+} {246747}
+do_test randexpr-2.1695 {
+  db eval {SELECT ~~t1.b & 11+d*coalesce((select max(t1.f-a) from t1 where not exists(select 1 from t1 where (a-coalesce((select b from t1 where t1.f<case when not exists(select 1 from t1 where 11=b or d<>e) then t1.e*c else c end-13+t1.a),f)+t1.d- -t1.a)*t1.c<>f) and t1.b not between (e) and t1.c),f)+11*t1.f FROM t1 WHERE NOT ((17 in (select 13 from t1 union select case coalesce((select max( -case when not b in ((select  -+case max((b)) when cast(avg(13) AS integer) then count(*) else max(a) end+min(b)-max(d) from t1),coalesce((select t1.d from t1 where case when  -13 in ( -t1.e,f,t1.e) then t1.c else e end | 11<=(t1.b)),t1.c)-11,t1.e) then t1.f else 13 end) from t1 where b>=t1.e),f) when e then t1.c else c end from t1)))}
+} {64}
+do_test randexpr-2.1696 {
+  db eval {SELECT case case when not ++b+~e-11-d-f*e*case when (t1.f) not between t1.c and t1.e or (13>e) then (abs(17)/abs(d)) when 11 not between 17 and (t1.b) then c else 13 end-(f)-f between t1.c and t1.f then t1.c when a between t1.d and 13 then t1.e else t1.a end when a then f else 13 end FROM t1 WHERE t1.a in (select case when (+e*t1.f not in ( -(select (case max(+t1.e-case when not exists(select 1 from t1 where 19 in (select 13 from t1 union select ((t1.d)) from t1)) then 13-t1.b else 19 end) when count(*)-(cast(avg(t1.b) AS integer)-cast(avg(b) AS integer)) then count(distinct t1.b) else count(distinct t1.c) end | cast(avg((19)) AS integer)) from t1),~17-f,c)) then (select count(*) from t1) when t1.a>t1.a then b else t1.d end+(f) from t1 union select b from t1)}
+} {}
+do_test randexpr-2.1697 {
+  db eval {SELECT case case when not ++b+~e-11-d-f*e*case when (t1.f) not between t1.c and t1.e or (13>e) then (abs(17)/abs(d)) when 11 not between 17 and (t1.b) then c else 13 end-(f)-f between t1.c and t1.f then t1.c when a between t1.d and 13 then t1.e else t1.a end when a then f else 13 end FROM t1 WHERE NOT (t1.a in (select case when (+e*t1.f not in ( -(select (case max(+t1.e-case when not exists(select 1 from t1 where 19 in (select 13 from t1 union select ((t1.d)) from t1)) then 13-t1.b else 19 end) when count(*)-(cast(avg(t1.b) AS integer)-cast(avg(b) AS integer)) then count(distinct t1.b) else count(distinct t1.c) end | cast(avg((19)) AS integer)) from t1),~17-f,c)) then (select count(*) from t1) when t1.a>t1.a then b else t1.d end+(f) from t1 union select b from t1))}
+} {13}
+do_test randexpr-2.1698 {
+  db eval {SELECT 13-case when a<=case when e not between t1.b*(abs(t1.c)/abs(e | 19-(select  -~count(distinct t1.b)+min(t1.a-t1.c-f+t1.d+t1.d+t1.d) from t1)))-t1.e and coalesce((select 11 from t1 where c<e),d)* -d then 17 else t1.e end then t1.c else 17 end+f FROM t1 WHERE (t1.f<>t1.c)}
+} {596}
+do_test randexpr-2.1699 {
+  db eval {SELECT 13-case when a<=case when e not between t1.b*(abs(t1.c)/abs(e | 19-(select  -~count(distinct t1.b)+min(t1.a-t1.c-f+t1.d+t1.d+t1.d) from t1)))-t1.e and coalesce((select 11 from t1 where c<e),d)* -d then 17 else t1.e end then t1.c else 17 end+f FROM t1 WHERE NOT ((t1.f<>t1.c))}
+} {}
+do_test randexpr-2.1700 {
+  db eval {SELECT 13-case when a<=case when e not between t1.b*(abs(t1.c)/abs(e & 19-(select  -~count(distinct t1.b)+min(t1.a-t1.c-f+t1.d+t1.d+t1.d) from t1)))-t1.e and coalesce((select 11 from t1 where c<e),d)* -d then 17 else t1.e end then t1.c else 17 end+f FROM t1 WHERE (t1.f<>t1.c)}
+} {596}
+do_test randexpr-2.1701 {
+  db eval {SELECT (case when coalesce((select max(~case coalesce((select max(b) from t1 where case (select count(distinct 17) from t1)-e when b then d else t1.b end<13),f) when c then (( -c)) else 13 end) from t1 where t1.e between a and b),t1.b) in (select  -min(t1.f) from t1 union select case cast(avg(t1.d) AS integer) when count(distinct b) then case +~ -cast(avg(b) AS integer) when max(t1.f) then count(*) else (max(e)) end else count(*) end from t1) then c when 13<=t1.f then ( -17) else t1.b end) FROM t1 WHERE (select min(19*coalesce((select max(t1.e) from t1 where ~coalesce((select t1.a-coalesce((select max((abs(a)/abs(d))) from t1 where  -13 not in ((d)*t1.a+t1.e,13,t1.c) or 17 not in (a,b,t1.d)), -t1.a) from t1 where c<>t1.e),a) | 11+17 between b and 17),c))*~ -max(e) from t1)<>11}
+} {-17}
+do_test randexpr-2.1702 {
+  db eval {SELECT (case when coalesce((select max(~case coalesce((select max(b) from t1 where case (select count(distinct 17) from t1)-e when b then d else t1.b end<13),f) when c then (( -c)) else 13 end) from t1 where t1.e between a and b),t1.b) in (select  -min(t1.f) from t1 union select case cast(avg(t1.d) AS integer) when count(distinct b) then case +~ -cast(avg(b) AS integer) when max(t1.f) then count(*) else (max(e)) end else count(*) end from t1) then c when 13<=t1.f then ( -17) else t1.b end) FROM t1 WHERE NOT ((select min(19*coalesce((select max(t1.e) from t1 where ~coalesce((select t1.a-coalesce((select max((abs(a)/abs(d))) from t1 where  -13 not in ((d)*t1.a+t1.e,13,t1.c) or 17 not in (a,b,t1.d)), -t1.a) from t1 where c<>t1.e),a) | 11+17 between b and 17),c))*~ -max(e) from t1)<>11)}
+} {}
+do_test randexpr-2.1703 {
+  db eval {SELECT t1.f* -t1.e-c | b++19*(select (case max(t1.c) when +abs(count(distinct case when e<t1.a then 19 else d end)) then  -count(distinct e) else (((count(distinct t1.d)))) end | max(e)+(cast(avg(t1.c) AS integer)))+count(*) from t1)+case when t1.d>=13 then coalesce((select max(t1.c) from t1 where not  -c+b-t1.f<>d),a) else b end FROM t1 WHERE d in (select 11 from t1 union select  -d*~t1.b from t1)}
+} {}
+do_test randexpr-2.1704 {
+  db eval {SELECT t1.f* -t1.e-c | b++19*(select (case max(t1.c) when +abs(count(distinct case when e<t1.a then 19 else d end)) then  -count(distinct e) else (((count(distinct t1.d)))) end | max(e)+(cast(avg(t1.c) AS integer)))+count(*) from t1)+case when t1.d>=13 then coalesce((select max(t1.c) from t1 where not  -c+b-t1.f<>d),a) else b end FROM t1 WHERE NOT (d in (select 11 from t1 union select  -d*~t1.b from t1))}
+} {-295178}
+do_test randexpr-2.1705 {
+  db eval {SELECT t1.f* -t1.e-c & b++19*(select (case max(t1.c) when +abs(count(distinct case when e<t1.a then 19 else d end)) then  -count(distinct e) else (((count(distinct t1.d)))) end & max(e)+(cast(avg(t1.c) AS integer)))+count(*) from t1)+case when t1.d>=13 then coalesce((select max(t1.c) from t1 where not  -c+b-t1.f<>d),a) else b end FROM t1 WHERE NOT (d in (select 11 from t1 union select  -d*~t1.b from t1))}
+} {52}
+do_test randexpr-2.1706 {
+  db eval {SELECT 11-t1.e+d+case case when (b between  -+case when f not between case coalesce((select t1.a from t1 where e not between (t1.d) and t1.a or 17<11),t1.d) when 17 then t1.f else t1.e end and d then 17 when e>=t1.f then t1.b else t1.b end and t1.e) then case f when t1.d then t1.c else  -e end when (not exists(select 1 from t1 where  -(11)>a) or t1.c<b) then 17 else 11 end when (t1.e) then d else t1.e end FROM t1 WHERE not (f)>t1.e}
+} {}
+do_test randexpr-2.1707 {
+  db eval {SELECT 11-t1.e+d+case case when (b between  -+case when f not between case coalesce((select t1.a from t1 where e not between (t1.d) and t1.a or 17<11),t1.d) when 17 then t1.f else t1.e end and d then 17 when e>=t1.f then t1.b else t1.b end and t1.e) then case f when t1.d then t1.c else  -e end when (not exists(select 1 from t1 where  -(11)>a) or t1.c<b) then 17 else 11 end when (t1.e) then d else t1.e end FROM t1 WHERE NOT (not (f)>t1.e)}
+} {411}
+do_test randexpr-2.1708 {
+  db eval {SELECT coalesce((select max(case when f>11 then 13 when 19*e+(select  -count(distinct t1.c)-max(c) | count(distinct 13) from t1) between coalesce((select max(case when t1.a<t1.c and (t1.a)<=d then c when 17 between t1.b and b then (t1.c) else a end) from t1 where  -19 in (select min(11) from t1 union select count(*) from t1)),11) and 11 or (exists(select 1 from t1 where not exists(select 1 from t1 where c not between ( -b) and e))) and b not between 17 and t1.a and 19<b then 17 else f end) from t1 where t1.b between t1.c and 13 and t1.b<>e),17) FROM t1 WHERE case case 13+coalesce((select max( -t1.b*t1.c) from t1 where t1.c*c<>(select  -(count(distinct e)) from t1)-t1.c | t1.d*t1.e+11*t1.a+11-t1.a*b),d)+t1.d+e when t1.f then e else  -11 end-d when t1.e then 11 else f end+f=19}
+} {}
+do_test randexpr-2.1709 {
+  db eval {SELECT coalesce((select max(case when f>11 then 13 when 19*e+(select  -count(distinct t1.c)-max(c) | count(distinct 13) from t1) between coalesce((select max(case when t1.a<t1.c and (t1.a)<=d then c when 17 between t1.b and b then (t1.c) else a end) from t1 where  -19 in (select min(11) from t1 union select count(*) from t1)),11) and 11 or (exists(select 1 from t1 where not exists(select 1 from t1 where c not between ( -b) and e))) and b not between 17 and t1.a and 19<b then 17 else f end) from t1 where t1.b between t1.c and 13 and t1.b<>e),17) FROM t1 WHERE NOT (case case 13+coalesce((select max( -t1.b*t1.c) from t1 where t1.c*c<>(select  -(count(distinct e)) from t1)-t1.c | t1.d*t1.e+11*t1.a+11-t1.a*b),d)+t1.d+e when t1.f then e else  -11 end-d when t1.e then 11 else f end+f=19)}
+} {17}
+do_test randexpr-2.1710 {
+  db eval {SELECT coalesce((select max(case when f>11 then 13 when 19*e+(select  -count(distinct t1.c)-max(c) & count(distinct 13) from t1) between coalesce((select max(case when t1.a<t1.c and (t1.a)<=d then c when 17 between t1.b and b then (t1.c) else a end) from t1 where  -19 in (select min(11) from t1 union select count(*) from t1)),11) and 11 or (exists(select 1 from t1 where not exists(select 1 from t1 where c not between ( -b) and e))) and b not between 17 and t1.a and 19<b then 17 else f end) from t1 where t1.b between t1.c and 13 and t1.b<>e),17) FROM t1 WHERE NOT (case case 13+coalesce((select max( -t1.b*t1.c) from t1 where t1.c*c<>(select  -(count(distinct e)) from t1)-t1.c | t1.d*t1.e+11*t1.a+11-t1.a*b),d)+t1.d+e when t1.f then e else  -11 end-d when t1.e then 11 else f end+f=19)}
+} {17}
+do_test randexpr-2.1711 {
+  db eval {SELECT 13+coalesce((select  -(abs(b)/abs(coalesce((select (abs(e+t1.a)/abs(13)) from t1 where a<c), -19)+t1.a+t1.c)) from t1 where (not t1.a not between e and e)),t1.d) FROM t1 WHERE ~(abs(t1.f)/abs(f)) not in (f,case c when coalesce((select max(17) from t1 where case when 17 not between 13 and 11+case when exists(select 1 from t1 where t1.e<c) then case when d between f and t1.c then 19 when 11 in (t1.a,11,e) then a else t1.e end else 13 end | 11+17 then t1.e else e end<>17 and t1.d<>t1.f),17)+a- -t1.d then t1.d else  -t1.b end,b)}
+} {413}
+do_test randexpr-2.1712 {
+  db eval {SELECT 13+coalesce((select  -(abs(b)/abs(coalesce((select (abs(e+t1.a)/abs(13)) from t1 where a<c), -19)+t1.a+t1.c)) from t1 where (not t1.a not between e and e)),t1.d) FROM t1 WHERE NOT (~(abs(t1.f)/abs(f)) not in (f,case c when coalesce((select max(17) from t1 where case when 17 not between 13 and 11+case when exists(select 1 from t1 where t1.e<c) then case when d between f and t1.c then 19 when 11 in (t1.a,11,e) then a else t1.e end else 13 end | 11+17 then t1.e else e end<>17 and t1.d<>t1.f),17)+a- -t1.d then t1.d else  -t1.b end,b))}
+} {}
+do_test randexpr-2.1713 {
+  db eval {SELECT (~(abs(case when t1.f*17 not in (coalesce((select 13 from t1 where d in (select count(distinct t1.e- -t1.e+t1.e*11) from t1 union select (abs(~~(cast(avg(d) AS integer))* -(min(13))+max(d) | min(13))) from t1)),d),a,t1.e) then c else t1.c end-c)/abs((t1.d)))*t1.c)*t1.d+t1.b-b FROM t1 WHERE (abs(case when (t1.e+case when t1.f+t1.d*t1.c<=t1.f or t1.c>=a and a not between 19 and t1.e then e else b end-t1.c) | t1.b<>19 then t1.f when 19<=t1.d and not  -t1.c>=11 and t1.a between t1.f and (19) then b else t1.c end)/abs(b))+11>=t1.f and t1.f not between f and t1.a}
+} {}
+do_test randexpr-2.1714 {
+  db eval {SELECT (~(abs(case when t1.f*17 not in (coalesce((select 13 from t1 where d in (select count(distinct t1.e- -t1.e+t1.e*11) from t1 union select (abs(~~(cast(avg(d) AS integer))* -(min(13))+max(d) | min(13))) from t1)),d),a,t1.e) then c else t1.c end-c)/abs((t1.d)))*t1.c)*t1.d+t1.b-b FROM t1 WHERE NOT ((abs(case when (t1.e+case when t1.f+t1.d*t1.c<=t1.f or t1.c>=a and a not between 19 and t1.e then e else b end-t1.c) | t1.b<>19 then t1.f when 19<=t1.d and not  -t1.c>=11 and t1.a between t1.f and (19) then b else t1.c end)/abs(b))+11>=t1.f and t1.f not between f and t1.a)}
+} {-120000}
+do_test randexpr-2.1715 {
+  db eval {SELECT (~(abs(case when t1.f*17 not in (coalesce((select 13 from t1 where d in (select count(distinct t1.e- -t1.e+t1.e*11) from t1 union select (abs(~~(cast(avg(d) AS integer))* -(min(13))+max(d) & min(13))) from t1)),d),a,t1.e) then c else t1.c end-c)/abs((t1.d)))*t1.c)*t1.d+t1.b-b FROM t1 WHERE NOT ((abs(case when (t1.e+case when t1.f+t1.d*t1.c<=t1.f or t1.c>=a and a not between 19 and t1.e then e else b end-t1.c) | t1.b<>19 then t1.f when 19<=t1.d and not  -t1.c>=11 and t1.a between t1.f and (19) then b else t1.c end)/abs(b))+11>=t1.f and t1.f not between f and t1.a)}
+} {-120000}
+do_test randexpr-2.1716 {
+  db eval {SELECT (abs(a)/abs(case when (not t1.f in (select count(*) from t1 union select  - -min(c) | min(13*t1.d) from t1)) and ( -t1.a*t1.d)>=d or (t1.a in (a,11,f)) or (c>=t1.a) then 17+case when not exists(select 1 from t1 where e<t1.f) then + -(e)-d when t1.e in (19,19, -e) then  -t1.f else t1.a end else t1.b end)) FROM t1 WHERE t1.d in (select min(t1.d) from t1 union select +~case abs(max(case when t1.e not between 19-f | f | t1.c and b then t1.b else e end+b) | count(distinct f)) when count(distinct e) then count(*) else (+count(*)-(count(*))+min(t1.d)) end from t1) and (f)*coalesce((select 17 from t1 where f between t1.e and a),(13))<=b}
+} {}
+do_test randexpr-2.1717 {
+  db eval {SELECT (abs(a)/abs(case when (not t1.f in (select count(*) from t1 union select  - -min(c) | min(13*t1.d) from t1)) and ( -t1.a*t1.d)>=d or (t1.a in (a,11,f)) or (c>=t1.a) then 17+case when not exists(select 1 from t1 where e<t1.f) then + -(e)-d when t1.e in (19,19, -e) then  -t1.f else t1.a end else t1.b end)) FROM t1 WHERE NOT (t1.d in (select min(t1.d) from t1 union select +~case abs(max(case when t1.e not between 19-f | f | t1.c and b then t1.b else e end+b) | count(distinct f)) when count(distinct e) then count(*) else (+count(*)-(count(*))+min(t1.d)) end from t1) and (f)*coalesce((select 17 from t1 where f between t1.e and a),(13))<=b)}
+} {0}
+do_test randexpr-2.1718 {
+  db eval {SELECT (abs(a)/abs(case when (not t1.f in (select count(*) from t1 union select  - -min(c) & min(13*t1.d) from t1)) and ( -t1.a*t1.d)>=d or (t1.a in (a,11,f)) or (c>=t1.a) then 17+case when not exists(select 1 from t1 where e<t1.f) then + -(e)-d when t1.e in (19,19, -e) then  -t1.f else t1.a end else t1.b end)) FROM t1 WHERE NOT (t1.d in (select min(t1.d) from t1 union select +~case abs(max(case when t1.e not between 19-f | f | t1.c and b then t1.b else e end+b) | count(distinct f)) when count(distinct e) then count(*) else (+count(*)-(count(*))+min(t1.d)) end from t1) and (f)*coalesce((select 17 from t1 where f between t1.e and a),(13))<=b)}
+} {0}
+do_test randexpr-2.1719 {
+  db eval {SELECT +case when case when coalesce((select c from t1 where (exists(select 1 from t1 where not (abs(b)/abs(t1.b)) not between f and 19 and  -b>c)) and 13 between t1.c and 17 or a=13),coalesce((select a from t1 where (t1.d) in (c,11,t1.c)),t1.d)) | c | coalesce((select max(d) from t1 where t1.b>b),t1.a)=19 then e else 13 end between t1.a and t1.f and 17>=c then a when d in (e,13,c) or t1.b<> -19 then (17) else 17 end FROM t1 WHERE  -b in (t1.b,t1.f,case when a in (select case +(min(t1.c)*+~cast(avg(+t1.f) AS integer)*cast(avg(d) AS integer) | abs(count(*))+count(*)*count(distinct 17)) when count(distinct e) then  -cast(avg(t1.a) AS integer) else min(11) end from t1 union select ((min(13))) from t1) then (abs(t1.d)/abs(case when  -19<b then t1.e- -f+f else b end)) when t1.a between t1.f and 13 then f else t1.e end)}
+} {}
+do_test randexpr-2.1720 {
+  db eval {SELECT +case when case when coalesce((select c from t1 where (exists(select 1 from t1 where not (abs(b)/abs(t1.b)) not between f and 19 and  -b>c)) and 13 between t1.c and 17 or a=13),coalesce((select a from t1 where (t1.d) in (c,11,t1.c)),t1.d)) | c | coalesce((select max(d) from t1 where t1.b>b),t1.a)=19 then e else 13 end between t1.a and t1.f and 17>=c then a when d in (e,13,c) or t1.b<> -19 then (17) else 17 end FROM t1 WHERE NOT ( -b in (t1.b,t1.f,case when a in (select case +(min(t1.c)*+~cast(avg(+t1.f) AS integer)*cast(avg(d) AS integer) | abs(count(*))+count(*)*count(distinct 17)) when count(distinct e) then  -cast(avg(t1.a) AS integer) else min(11) end from t1 union select ((min(13))) from t1) then (abs(t1.d)/abs(case when  -19<b then t1.e- -f+f else b end)) when t1.a between t1.f and 13 then f else t1.e end))}
+} {17}
+do_test randexpr-2.1721 {
+  db eval {SELECT +case when case when coalesce((select c from t1 where (exists(select 1 from t1 where not (abs(b)/abs(t1.b)) not between f and 19 and  -b>c)) and 13 between t1.c and 17 or a=13),coalesce((select a from t1 where (t1.d) in (c,11,t1.c)),t1.d)) & c & coalesce((select max(d) from t1 where t1.b>b),t1.a)=19 then e else 13 end between t1.a and t1.f and 17>=c then a when d in (e,13,c) or t1.b<> -19 then (17) else 17 end FROM t1 WHERE NOT ( -b in (t1.b,t1.f,case when a in (select case +(min(t1.c)*+~cast(avg(+t1.f) AS integer)*cast(avg(d) AS integer) | abs(count(*))+count(*)*count(distinct 17)) when count(distinct e) then  -cast(avg(t1.a) AS integer) else min(11) end from t1 union select ((min(13))) from t1) then (abs(t1.d)/abs(case when  -19<b then t1.e- -f+f else b end)) when t1.a between t1.f and 13 then f else t1.e end))}
+} {17}
+do_test randexpr-2.1722 {
+  db eval {SELECT coalesce((select t1.b from t1 where not exists(select 1 from t1 where 13 in (select count(*) | ~min((select max((abs(d)/abs(t1.e+t1.e))) from t1)* -case when f*case e*~a when case e when (d) then 19 else (b) end then d else 17 end*t1.b between 11 and 13 then e when d in (a,(19),e) then c else 13 end-e*17) from t1 union select (count(*)) from t1))),f) FROM t1 WHERE not exists(select 1 from t1 where t1.a<>e)}
+} {}
+do_test randexpr-2.1723 {
+  db eval {SELECT coalesce((select t1.b from t1 where not exists(select 1 from t1 where 13 in (select count(*) | ~min((select max((abs(d)/abs(t1.e+t1.e))) from t1)* -case when f*case e*~a when case e when (d) then 19 else (b) end then d else 17 end*t1.b between 11 and 13 then e when d in (a,(19),e) then c else 13 end-e*17) from t1 union select (count(*)) from t1))),f) FROM t1 WHERE NOT (not exists(select 1 from t1 where t1.a<>e))}
+} {200}
+do_test randexpr-2.1724 {
+  db eval {SELECT coalesce((select t1.b from t1 where not exists(select 1 from t1 where 13 in (select count(*) & ~min((select max((abs(d)/abs(t1.e+t1.e))) from t1)* -case when f*case e*~a when case e when (d) then 19 else (b) end then d else 17 end*t1.b between 11 and 13 then e when d in (a,(19),e) then c else 13 end-e*17) from t1 union select (count(*)) from t1))),f) FROM t1 WHERE NOT (not exists(select 1 from t1 where t1.a<>e))}
+} {200}
+do_test randexpr-2.1725 {
+  db eval {SELECT  - -case b when +~coalesce((select max(coalesce((select c from t1 where coalesce((select max(t1.a+f) from t1 where (t1.a not between t1.a and t1.e)),t1.a)-b not between e and  -t1.d),d)+19) from t1 where (f in (select ( -count(*) | count(*)+cast(avg(11) AS integer)) from t1 union select count(distinct 13) from t1) or  -b<>19 or 17>=t1.a)),t1.e)-c-t1.d then t1.a else 19 end- - -11 FROM t1 WHERE d+a*~coalesce((select max((select count(distinct t1.e)-max(t1.d) from t1)) from t1 where not exists(select 1 from t1 where t1.e in (11-f*19,a,c-b)) and 11=t1.b),t1.a)=(t1.b) and  -t1.b<case when (+11 | coalesce((select t1.f from t1 where b<=(t1.b) and  -t1.e<=(t1.f)),13) | t1.e between 13 and 19) then 17 else 11 end}
+} {}
+do_test randexpr-2.1726 {
+  db eval {SELECT  - -case b when +~coalesce((select max(coalesce((select c from t1 where coalesce((select max(t1.a+f) from t1 where (t1.a not between t1.a and t1.e)),t1.a)-b not between e and  -t1.d),d)+19) from t1 where (f in (select ( -count(*) | count(*)+cast(avg(11) AS integer)) from t1 union select count(distinct 13) from t1) or  -b<>19 or 17>=t1.a)),t1.e)-c-t1.d then t1.a else 19 end- - -11 FROM t1 WHERE NOT (d+a*~coalesce((select max((select count(distinct t1.e)-max(t1.d) from t1)) from t1 where not exists(select 1 from t1 where t1.e in (11-f*19,a,c-b)) and 11=t1.b),t1.a)=(t1.b) and  -t1.b<case when (+11 | coalesce((select t1.f from t1 where b<=(t1.b) and  -t1.e<=(t1.f)),13) | t1.e between 13 and 19) then 17 else 11 end)}
+} {8}
+do_test randexpr-2.1727 {
+  db eval {SELECT  - -case b when +~coalesce((select max(coalesce((select c from t1 where coalesce((select max(t1.a+f) from t1 where (t1.a not between t1.a and t1.e)),t1.a)-b not between e and  -t1.d),d)+19) from t1 where (f in (select ( -count(*) & count(*)+cast(avg(11) AS integer)) from t1 union select count(distinct 13) from t1) or  -b<>19 or 17>=t1.a)),t1.e)-c-t1.d then t1.a else 19 end- - -11 FROM t1 WHERE NOT (d+a*~coalesce((select max((select count(distinct t1.e)-max(t1.d) from t1)) from t1 where not exists(select 1 from t1 where t1.e in (11-f*19,a,c-b)) and 11=t1.b),t1.a)=(t1.b) and  -t1.b<case when (+11 | coalesce((select t1.f from t1 where b<=(t1.b) and  -t1.e<=(t1.f)),13) | t1.e between 13 and 19) then 17 else 11 end)}
+} {8}
+do_test randexpr-2.1728 {
+  db eval {SELECT  -(abs(t1.a)/abs(case when coalesce((select max( -c) from t1 where t1.a*e>coalesce((select max(coalesce((select max(t1.d) from t1 where not exists(select 1 from t1 where e | t1.f-19 between t1.e-a and b and e>=t1.d)),+d)) from t1 where (exists(select 1 from t1 where t1.b in (select 19 from t1 union select 17 from t1) or 11 between t1.b and d))),c)),t1.e)*t1.a<=c then b else t1.d end)) FROM t1 WHERE (select abs( -abs(abs(case count(*) when ~ -min(f)+case  - -abs(+cast(avg(c*17) AS integer)) when count(*) then max(t1.a) else max(11) end+(cast(avg(e) AS integer)) then min(17) else count(*) end-cast(avg(a) AS integer)-count(*))))+ -cast(avg(t1.a) AS integer) | ((count(*))) from t1)+f in (select max((abs(+11*t1.a)/abs(t1.f))) from t1 union select max(d)-(( -count(distinct 11))) from t1)}
+} {}
+do_test randexpr-2.1729 {
+  db eval {SELECT  -(abs(t1.a)/abs(case when coalesce((select max( -c) from t1 where t1.a*e>coalesce((select max(coalesce((select max(t1.d) from t1 where not exists(select 1 from t1 where e | t1.f-19 between t1.e-a and b and e>=t1.d)),+d)) from t1 where (exists(select 1 from t1 where t1.b in (select 19 from t1 union select 17 from t1) or 11 between t1.b and d))),c)),t1.e)*t1.a<=c then b else t1.d end)) FROM t1 WHERE NOT ((select abs( -abs(abs(case count(*) when ~ -min(f)+case  - -abs(+cast(avg(c*17) AS integer)) when count(*) then max(t1.a) else max(11) end+(cast(avg(e) AS integer)) then min(17) else count(*) end-cast(avg(a) AS integer)-count(*))))+ -cast(avg(t1.a) AS integer) | ((count(*))) from t1)+f in (select max((abs(+11*t1.a)/abs(t1.f))) from t1 union select max(d)-(( -count(distinct 11))) from t1))}
+} {0}
+do_test randexpr-2.1730 {
+  db eval {SELECT  -(abs(t1.a)/abs(case when coalesce((select max( -c) from t1 where t1.a*e>coalesce((select max(coalesce((select max(t1.d) from t1 where not exists(select 1 from t1 where e & t1.f-19 between t1.e-a and b and e>=t1.d)),+d)) from t1 where (exists(select 1 from t1 where t1.b in (select 19 from t1 union select 17 from t1) or 11 between t1.b and d))),c)),t1.e)*t1.a<=c then b else t1.d end)) FROM t1 WHERE NOT ((select abs( -abs(abs(case count(*) when ~ -min(f)+case  - -abs(+cast(avg(c*17) AS integer)) when count(*) then max(t1.a) else max(11) end+(cast(avg(e) AS integer)) then min(17) else count(*) end-cast(avg(a) AS integer)-count(*))))+ -cast(avg(t1.a) AS integer) | ((count(*))) from t1)+f in (select max((abs(+11*t1.a)/abs(t1.f))) from t1 union select max(d)-(( -count(distinct 11))) from t1))}
+} {0}
+do_test randexpr-2.1731 {
+  db eval {SELECT case when ((select (+~~max(13)*count(distinct t1.c)) from t1)<>(select (+ -count(*)) from t1)) then +(17) else 19 end+~(abs(13)/abs(d))-t1.d FROM t1 WHERE coalesce((select (select  -+ -count(distinct a)*count(*)+max(t1.b) from t1) from t1 where exists(select 1 from t1 where t1.b=c)),t1.c)+f<>t1.f}
+} {-384}
+do_test randexpr-2.1732 {
+  db eval {SELECT case when ((select (+~~max(13)*count(distinct t1.c)) from t1)<>(select (+ -count(*)) from t1)) then +(17) else 19 end+~(abs(13)/abs(d))-t1.d FROM t1 WHERE NOT (coalesce((select (select  -+ -count(distinct a)*count(*)+max(t1.b) from t1) from t1 where exists(select 1 from t1 where t1.b=c)),t1.c)+f<>t1.f)}
+} {}
+do_test randexpr-2.1733 {
+  db eval {SELECT case t1.f when case when 17<=c and coalesce((select case when e in (case when (t1.a=c) then b else  -13 end,t1.d,t1.a) then 13 else t1.b end from t1 where (b)=13),t1.d) in ((t1.e),b,t1.b) and d not between 19 and 11 then +(select ~ -~max(e)+count(*)+cast(avg((t1.c)) AS integer) from t1) when t1.f<>e and t1.e<d then t1.c else 19 end then t1.a else t1.f end FROM t1 WHERE t1.b between t1.b and case when ((select abs(cast(avg( -17+f) AS integer)) from t1) between  -a and c) then case when coalesce((select max(d) from t1 where 11 in (select max(c) | (count(distinct 13)) from t1 union select count(*) from t1)),13) | t1.a between 13 and t1.f then f else (c) end-c when f in (19,(f), -13) then f else (t1.f) end-d or (f) not in (b,c,d)}
+} {600}
+do_test randexpr-2.1734 {
+  db eval {SELECT case t1.f when case when 17<=c and coalesce((select case when e in (case when (t1.a=c) then b else  -13 end,t1.d,t1.a) then 13 else t1.b end from t1 where (b)=13),t1.d) in ((t1.e),b,t1.b) and d not between 19 and 11 then +(select ~ -~max(e)+count(*)+cast(avg((t1.c)) AS integer) from t1) when t1.f<>e and t1.e<d then t1.c else 19 end then t1.a else t1.f end FROM t1 WHERE NOT (t1.b between t1.b and case when ((select abs(cast(avg( -17+f) AS integer)) from t1) between  -a and c) then case when coalesce((select max(d) from t1 where 11 in (select max(c) | (count(distinct 13)) from t1 union select count(*) from t1)),13) | t1.a between 13 and t1.f then f else (c) end-c when f in (19,(f), -13) then f else (t1.f) end-d or (f) not in (b,c,d))}
+} {}
+do_test randexpr-2.1735 {
+  db eval {SELECT t1.c+b+t1.c*case when f in (select max(case when not t1.e<case when (select ~+(min(13)) from t1)+t1.e in (select  -+count(*) from t1 union select ((cast(avg(e) AS integer))) from t1) then c when t1.f not between f and t1.f or (c) in (t1.e,c,d) then c else 11 end then +f else b end)-count(*) from t1 union select +min(11)-count(distinct t1.e) from t1) then d else 17 end-19 FROM t1 WHERE (select abs(case (count(distinct case when not exists(select 1 from t1 where  -t1.c=t1.c) and t1.d not in (13,t1.c,t1.c) then case (19)-c when t1.b then 11 else t1.f end else t1.d end+t1.c)+max(11)) when (count(distinct t1.f)*count(distinct 19)) then  -max(f) else count(*) end) from t1)*coalesce((select max(e) from t1 where (abs(case  -d when t1.b then 19 else t1.e end)/abs(c))< -e), -b)-e<=f}
+} {5581}
+do_test randexpr-2.1736 {
+  db eval {SELECT t1.c+b+t1.c*case when f in (select max(case when not t1.e<case when (select ~+(min(13)) from t1)+t1.e in (select  -+count(*) from t1 union select ((cast(avg(e) AS integer))) from t1) then c when t1.f not between f and t1.f or (c) in (t1.e,c,d) then c else 11 end then +f else b end)-count(*) from t1 union select +min(11)-count(distinct t1.e) from t1) then d else 17 end-19 FROM t1 WHERE NOT ((select abs(case (count(distinct case when not exists(select 1 from t1 where  -t1.c=t1.c) and t1.d not in (13,t1.c,t1.c) then case (19)-c when t1.b then 11 else t1.f end else t1.d end+t1.c)+max(11)) when (count(distinct t1.f)*count(distinct 19)) then  -max(f) else count(*) end) from t1)*coalesce((select max(e) from t1 where (abs(case  -d when t1.b then 19 else t1.e end)/abs(c))< -e), -b)-e<=f)}
+} {}
+do_test randexpr-2.1737 {
+  db eval {SELECT +case + -(+t1.a)-~13+t1.b*t1.b+ -c+(select abs(case ~max(t1.c)++min( -13)+ -count(*)+(count(*)) | ((cast(avg(t1.e) AS integer))) when min(t1.c) then min(t1.d) else min(b) end)+min(13) | count(distinct f) | min(t1.a) from t1) when t1.e then 11-17 else t1.b*c end FROM t1 WHERE (~coalesce((select max(coalesce((select max(19) from t1 where case when case f-(coalesce((select ~11 from t1 where  -19= -t1.f or b=t1.b),13)) when 19 then t1.d else t1.b end<=17 then 17 when t1.b>t1.e then t1.d else (d) end in (select count(*) from t1 union select  -abs(~abs(count(distinct d)) | min(t1.e))*count(*) from t1)),t1.f)) from t1 where a>13),d) not between t1.d and c)}
+} {60000}
+do_test randexpr-2.1738 {
+  db eval {SELECT +case + -(+t1.a)-~13+t1.b*t1.b+ -c+(select abs(case ~max(t1.c)++min( -13)+ -count(*)+(count(*)) | ((cast(avg(t1.e) AS integer))) when min(t1.c) then min(t1.d) else min(b) end)+min(13) | count(distinct f) | min(t1.a) from t1) when t1.e then 11-17 else t1.b*c end FROM t1 WHERE NOT ((~coalesce((select max(coalesce((select max(19) from t1 where case when case f-(coalesce((select ~11 from t1 where  -19= -t1.f or b=t1.b),13)) when 19 then t1.d else t1.b end<=17 then 17 when t1.b>t1.e then t1.d else (d) end in (select count(*) from t1 union select  -abs(~abs(count(distinct d)) | min(t1.e))*count(*) from t1)),t1.f)) from t1 where a>13),d) not between t1.d and c))}
+} {}
+do_test randexpr-2.1739 {
+  db eval {SELECT +case + -(+t1.a)-~13+t1.b*t1.b+ -c+(select abs(case ~max(t1.c)++min( -13)+ -count(*)+(count(*)) & ((cast(avg(t1.e) AS integer))) when min(t1.c) then min(t1.d) else min(b) end)+min(13) & count(distinct f) & min(t1.a) from t1) when t1.e then 11-17 else t1.b*c end FROM t1 WHERE (~coalesce((select max(coalesce((select max(19) from t1 where case when case f-(coalesce((select ~11 from t1 where  -19= -t1.f or b=t1.b),13)) when 19 then t1.d else t1.b end<=17 then 17 when t1.b>t1.e then t1.d else (d) end in (select count(*) from t1 union select  -abs(~abs(count(distinct d)) | min(t1.e))*count(*) from t1)),t1.f)) from t1 where a>13),d) not between t1.d and c)}
+} {60000}
+do_test randexpr-2.1740 {
+  db eval {SELECT (abs(e)/abs((+b)*coalesce((select c+c+t1.a+t1.e+t1.a+t1.a | 17+e*(t1.c) from t1 where a in (select count(distinct t1.c)-+count(*) from t1 union select  - -( -max(t1.f))-count(distinct t1.b)+min(t1.b)*count(*)+count(distinct a) from t1)),t1.a)+e))*19 FROM t1 WHERE coalesce((select 11 from t1 where case t1.e-(t1.a) when (f) then ((19)) else t1.f end+ -t1.b+a+coalesce((select coalesce((select d from t1 where exists(select 1 from t1 where 13+(t1.a)<>19 or 17 not in (c,e,t1.c) or f not in (t1.e,t1.a, -f))),~ -13+e) from t1 where b between (11) and t1.f),t1.a)<=t1.d), -c)<=11}
+} {0}
+do_test randexpr-2.1741 {
+  db eval {SELECT (abs(e)/abs((+b)*coalesce((select c+c+t1.a+t1.e+t1.a+t1.a | 17+e*(t1.c) from t1 where a in (select count(distinct t1.c)-+count(*) from t1 union select  - -( -max(t1.f))-count(distinct t1.b)+min(t1.b)*count(*)+count(distinct a) from t1)),t1.a)+e))*19 FROM t1 WHERE NOT (coalesce((select 11 from t1 where case t1.e-(t1.a) when (f) then ((19)) else t1.f end+ -t1.b+a+coalesce((select coalesce((select d from t1 where exists(select 1 from t1 where 13+(t1.a)<>19 or 17 not in (c,e,t1.c) or f not in (t1.e,t1.a, -f))),~ -13+e) from t1 where b between (11) and t1.f),t1.a)<=t1.d), -c)<=11)}
+} {}
+do_test randexpr-2.1742 {
+  db eval {SELECT (abs(e)/abs((+b)*coalesce((select c+c+t1.a+t1.e+t1.a+t1.a & 17+e*(t1.c) from t1 where a in (select count(distinct t1.c)-+count(*) from t1 union select  - -( -max(t1.f))-count(distinct t1.b)+min(t1.b)*count(*)+count(distinct a) from t1)),t1.a)+e))*19 FROM t1 WHERE coalesce((select 11 from t1 where case t1.e-(t1.a) when (f) then ((19)) else t1.f end+ -t1.b+a+coalesce((select coalesce((select d from t1 where exists(select 1 from t1 where 13+(t1.a)<>19 or 17 not in (c,e,t1.c) or f not in (t1.e,t1.a, -f))),~ -13+e) from t1 where b between (11) and t1.f),t1.a)<=t1.d), -c)<=11}
+} {0}
+do_test randexpr-2.1743 {
+  db eval {SELECT case coalesce((select t1.f from t1 where not exists(select 1 from t1 where coalesce((select max(d) from t1 where 13 not in (11,coalesce((select max((+f)) from t1 where not d>=f or e in (select 11-t1.b from t1 union select t1.d from t1) or not exists(select 1 from t1 where  -b in (select t1.d from t1 union select b from t1) or t1.a<>b or t1.d>e) or t1.a not between (t1.f) and t1.e),+f),t1.e)),t1.f)*t1.b not in (13,t1.b,t1.f))),t1.a)*b when c then b else t1.f end FROM t1 WHERE case when c*coalesce((select max(19+t1.e*~case case t1.e when t1.f then  -t1.a else 11 end when 11 then t1.a else (select cast(avg(a) AS integer) from t1) end- -t1.b*coalesce((select 19 from t1 where t1.f in ((a),t1.d,t1.c)),a)) from t1 where exists(select 1 from t1 where not exists(select 1 from t1 where t1.a not in (t1.b,t1.a,17)))),13)>=a then b when t1.c>t1.a then d else 17 end not in (a,17,t1.b)}
+} {600}
+do_test randexpr-2.1744 {
+  db eval {SELECT case coalesce((select t1.f from t1 where not exists(select 1 from t1 where coalesce((select max(d) from t1 where 13 not in (11,coalesce((select max((+f)) from t1 where not d>=f or e in (select 11-t1.b from t1 union select t1.d from t1) or not exists(select 1 from t1 where  -b in (select t1.d from t1 union select b from t1) or t1.a<>b or t1.d>e) or t1.a not between (t1.f) and t1.e),+f),t1.e)),t1.f)*t1.b not in (13,t1.b,t1.f))),t1.a)*b when c then b else t1.f end FROM t1 WHERE NOT (case when c*coalesce((select max(19+t1.e*~case case t1.e when t1.f then  -t1.a else 11 end when 11 then t1.a else (select cast(avg(a) AS integer) from t1) end- -t1.b*coalesce((select 19 from t1 where t1.f in ((a),t1.d,t1.c)),a)) from t1 where exists(select 1 from t1 where not exists(select 1 from t1 where t1.a not in (t1.b,t1.a,17)))),13)>=a then b when t1.c>t1.a then d else 17 end not in (a,17,t1.b))}
+} {}
+do_test randexpr-2.1745 {
+  db eval {SELECT (abs(case when (c*+~t1.d++t1.b+a-case when (select +case count(*)+min(d) when  -count(distinct 17) then max(t1.b) else  -cast(avg(d) AS integer) end from t1) in (select cast(avg(c) AS integer) from t1 union select ((count(*))) from t1) then t1.a* -f else f end*c*19-(f)-t1.c-t1.f+t1.d>=f) then (t1.d) else d end)/abs(t1.b)) FROM t1 WHERE coalesce((select a from t1 where t1.d not in ( -13*d,19,t1.a)),(abs(coalesce((select case when c>=t1.e then b else case ~t1.d+a-+t1.b+17 when case when t1.e+t1.e not between e and (c) then t1.d when d>a then t1.d else t1.c end | t1.a-(d) then t1.f else c end end from t1 where d>=t1.c),13))/abs(t1.c)))=t1.e}
+} {}
+do_test randexpr-2.1746 {
+  db eval {SELECT (abs(case when (c*+~t1.d++t1.b+a-case when (select +case count(*)+min(d) when  -count(distinct 17) then max(t1.b) else  -cast(avg(d) AS integer) end from t1) in (select cast(avg(c) AS integer) from t1 union select ((count(*))) from t1) then t1.a* -f else f end*c*19-(f)-t1.c-t1.f+t1.d>=f) then (t1.d) else d end)/abs(t1.b)) FROM t1 WHERE NOT (coalesce((select a from t1 where t1.d not in ( -13*d,19,t1.a)),(abs(coalesce((select case when c>=t1.e then b else case ~t1.d+a-+t1.b+17 when case when t1.e+t1.e not between e and (c) then t1.d when d>a then t1.d else t1.c end | t1.a-(d) then t1.f else c end end from t1 where d>=t1.c),13))/abs(t1.c)))=t1.e)}
+} {2}
+do_test randexpr-2.1747 {
+  db eval {SELECT d+coalesce((select max(coalesce((select f from t1 where coalesce((select 17 | t1.b from t1 where 11 not in ((t1.e),+a-f,t1.c | b+17*t1.e-c)), -c) in (select  -count(distinct e)-+max(t1.b) from t1 union select count(distinct c)+cast(avg(t1.b) AS integer) from t1)),17)) from t1 where not t1.c<t1.e),17)+b+e FROM t1 WHERE case t1.f when t1.a then t1.e else d-case when e<>(select ~~+(min(11-11)) | ~ -(count(*)) from t1)*(case when t1.d=19 then a when not t1.a in (11,t1.e,c) or t1.a not between t1.f and e then t1.a else t1.e end+19) then 13 when 19 between  -17 and t1.a then t1.a else 19 end end>=t1.f and t1.e>t1.a}
+} {}
+do_test randexpr-2.1748 {
+  db eval {SELECT d+coalesce((select max(coalesce((select f from t1 where coalesce((select 17 | t1.b from t1 where 11 not in ((t1.e),+a-f,t1.c | b+17*t1.e-c)), -c) in (select  -count(distinct e)-+max(t1.b) from t1 union select count(distinct c)+cast(avg(t1.b) AS integer) from t1)),17)) from t1 where not t1.c<t1.e),17)+b+e FROM t1 WHERE NOT (case t1.f when t1.a then t1.e else d-case when e<>(select ~~+(min(11-11)) | ~ -(count(*)) from t1)*(case when t1.d=19 then a when not t1.a in (11,t1.e,c) or t1.a not between t1.f and e then t1.a else t1.e end+19) then 13 when 19 between  -17 and t1.a then t1.a else 19 end end>=t1.f and t1.e>t1.a)}
+} {1117}
+do_test randexpr-2.1749 {
+  db eval {SELECT d+coalesce((select max(coalesce((select f from t1 where coalesce((select 17 & t1.b from t1 where 11 not in ((t1.e),+a-f,t1.c & b+17*t1.e-c)), -c) in (select  -count(distinct e)-+max(t1.b) from t1 union select count(distinct c)+cast(avg(t1.b) AS integer) from t1)),17)) from t1 where not t1.c<t1.e),17)+b+e FROM t1 WHERE NOT (case t1.f when t1.a then t1.e else d-case when e<>(select ~~+(min(11-11)) | ~ -(count(*)) from t1)*(case when t1.d=19 then a when not t1.a in (11,t1.e,c) or t1.a not between t1.f and e then t1.a else t1.e end+19) then 13 when 19 between  -17 and t1.a then t1.a else 19 end end>=t1.f and t1.e>t1.a)}
+} {1117}
+do_test randexpr-2.1750 {
+  db eval {SELECT (select case ~ -(~case case cast(avg(t1.e) AS integer) when min(case when t1.c between coalesce((select t1.b from t1 where d in (select f from t1 union select t1.e from t1)),(e)) and t1.d and (19=(11)) then 17 else b end) | max((13))-min(t1.c) |  -count(distinct t1.d)*max(11) then count(*) else max(f) end*count(*)-(( -count(distinct f))) when min(t1.c) then (count(distinct (13))) else max((b)) end)+max(t1.a) when (max(t1.c)) then  -cast(avg(a) AS integer) else cast(avg(t1.c) AS integer) end from t1) FROM t1 WHERE (f) not between c and 17 | t1.b | coalesce((select t1.d from t1 where t1.d*~case when a<=f or (case t1.f when d+17+17 then e else +case when (11<>17) then 11 when  -t1.b not in (e,19,(f)) then t1.c else a end+13 end>= -t1.f) then ~ -t1.c else c end*t1.f*a*17<=t1.f),17)}
+} {300}
+do_test randexpr-2.1751 {
+  db eval {SELECT (select case ~ -(~case case cast(avg(t1.e) AS integer) when min(case when t1.c between coalesce((select t1.b from t1 where d in (select f from t1 union select t1.e from t1)),(e)) and t1.d and (19=(11)) then 17 else b end) | max((13))-min(t1.c) |  -count(distinct t1.d)*max(11) then count(*) else max(f) end*count(*)-(( -count(distinct f))) when min(t1.c) then (count(distinct (13))) else max((b)) end)+max(t1.a) when (max(t1.c)) then  -cast(avg(a) AS integer) else cast(avg(t1.c) AS integer) end from t1) FROM t1 WHERE NOT ((f) not between c and 17 | t1.b | coalesce((select t1.d from t1 where t1.d*~case when a<=f or (case t1.f when d+17+17 then e else +case when (11<>17) then 11 when  -t1.b not in (e,19,(f)) then t1.c else a end+13 end>= -t1.f) then ~ -t1.c else c end*t1.f*a*17<=t1.f),17))}
+} {}
+do_test randexpr-2.1752 {
+  db eval {SELECT (select case ~ -(~case case cast(avg(t1.e) AS integer) when min(case when t1.c between coalesce((select t1.b from t1 where d in (select f from t1 union select t1.e from t1)),(e)) and t1.d and (19=(11)) then 17 else b end) & max((13))-min(t1.c) &  -count(distinct t1.d)*max(11) then count(*) else max(f) end*count(*)-(( -count(distinct f))) when min(t1.c) then (count(distinct (13))) else max((b)) end)+max(t1.a) when (max(t1.c)) then  -cast(avg(a) AS integer) else cast(avg(t1.c) AS integer) end from t1) FROM t1 WHERE (f) not between c and 17 | t1.b | coalesce((select t1.d from t1 where t1.d*~case when a<=f or (case t1.f when d+17+17 then e else +case when (11<>17) then 11 when  -t1.b not in (e,19,(f)) then t1.c else a end+13 end>= -t1.f) then ~ -t1.c else c end*t1.f*a*17<=t1.f),17)}
+} {300}
+do_test randexpr-2.1753 {
+  db eval {SELECT (select abs(min(t1.b)) from t1)-f | case when +t1.d*d not in (t1.f,t1.a,case when ~t1.f-17*c<>t1.a then 11 when 19 in (select (+count(distinct b)) | cast(avg(19) AS integer)*count(*) from t1 union select count(distinct t1.d) from t1) then d else d end+19+b) then (a) else 17 end*13+d FROM t1 WHERE t1.f<>(abs(t1.a)/abs(coalesce((select max(case when coalesce((select max((select count(*) from t1)) from t1 where f<>t1.a),coalesce((select max(11) from t1 where 17+coalesce((select t1.a from t1 where a in (select +~cast(avg(d+11) AS integer) from t1 union select count(distinct coalesce((select max((13)) from t1 where not (t1.f)<>19),f)*d) from t1)),19)+t1.e between 13 and (t1.b)),e))>=e then d else t1.f end) from t1 where ((not f>= -t1.b))),t1.c)))}
+} {-268}
+do_test randexpr-2.1754 {
+  db eval {SELECT (select abs(min(t1.b)) from t1)-f | case when +t1.d*d not in (t1.f,t1.a,case when ~t1.f-17*c<>t1.a then 11 when 19 in (select (+count(distinct b)) | cast(avg(19) AS integer)*count(*) from t1 union select count(distinct t1.d) from t1) then d else d end+19+b) then (a) else 17 end*13+d FROM t1 WHERE NOT (t1.f<>(abs(t1.a)/abs(coalesce((select max(case when coalesce((select max((select count(*) from t1)) from t1 where f<>t1.a),coalesce((select max(11) from t1 where 17+coalesce((select t1.a from t1 where a in (select +~cast(avg(d+11) AS integer) from t1 union select count(distinct coalesce((select max((13)) from t1 where not (t1.f)<>19),f)*d) from t1)),19)+t1.e between 13 and (t1.b)),e))>=e then d else t1.f end) from t1 where ((not f>= -t1.b))),t1.c))))}
+} {}
+do_test randexpr-2.1755 {
+  db eval {SELECT (select abs(min(t1.b)) from t1)-f & case when +t1.d*d not in (t1.f,t1.a,case when ~t1.f-17*c<>t1.a then 11 when 19 in (select (+count(distinct b)) & cast(avg(19) AS integer)*count(*) from t1 union select count(distinct t1.d) from t1) then d else d end+19+b) then (a) else 17 end*13+d FROM t1 WHERE t1.f<>(abs(t1.a)/abs(coalesce((select max(case when coalesce((select max((select count(*) from t1)) from t1 where f<>t1.a),coalesce((select max(11) from t1 where 17+coalesce((select t1.a from t1 where a in (select +~cast(avg(d+11) AS integer) from t1 union select count(distinct coalesce((select max((13)) from t1 where not (t1.f)<>19),f)*d) from t1)),19)+t1.e between 13 and (t1.b)),e))>=e then d else t1.f end) from t1 where ((not f>= -t1.b))),t1.c)))}
+} {1568}
+do_test randexpr-2.1756 {
+  db eval {SELECT coalesce((select max(a) from t1 where a>a*(((t1.d)) | a)-+case t1.a-t1.d-19+coalesce((select max(t1.c) from t1 where ~(select  -cast(avg(a+d) AS integer) from t1) not in (~((17)),t1.a,(t1.e))),b)+a*(c) when t1.f then a else t1.f end-17+c),13)*t1.a FROM t1 WHERE t1.b*t1.d*11*case 13 | t1.a when (case when not exists(select 1 from t1 where t1.a not between coalesce((select f-a from t1 where a not in (11,d,(a)) or e<=d and 11=t1.e),d)+e and t1.c) and (t1.a>=t1.f or (t1.a)>=t1.a) then (c)+t1.d else a end)* -t1.a then e else t1.f end | 13>=b}
+} {1300}
+do_test randexpr-2.1757 {
+  db eval {SELECT coalesce((select max(a) from t1 where a>a*(((t1.d)) | a)-+case t1.a-t1.d-19+coalesce((select max(t1.c) from t1 where ~(select  -cast(avg(a+d) AS integer) from t1) not in (~((17)),t1.a,(t1.e))),b)+a*(c) when t1.f then a else t1.f end-17+c),13)*t1.a FROM t1 WHERE NOT (t1.b*t1.d*11*case 13 | t1.a when (case when not exists(select 1 from t1 where t1.a not between coalesce((select f-a from t1 where a not in (11,d,(a)) or e<=d and 11=t1.e),d)+e and t1.c) and (t1.a>=t1.f or (t1.a)>=t1.a) then (c)+t1.d else a end)* -t1.a then e else t1.f end | 13>=b)}
+} {}
+do_test randexpr-2.1758 {
+  db eval {SELECT coalesce((select max(a) from t1 where a>a*(((t1.d)) & a)-+case t1.a-t1.d-19+coalesce((select max(t1.c) from t1 where ~(select  -cast(avg(a+d) AS integer) from t1) not in (~((17)),t1.a,(t1.e))),b)+a*(c) when t1.f then a else t1.f end-17+c),13)*t1.a FROM t1 WHERE t1.b*t1.d*11*case 13 | t1.a when (case when not exists(select 1 from t1 where t1.a not between coalesce((select f-a from t1 where a not in (11,d,(a)) or e<=d and 11=t1.e),d)+e and t1.c) and (t1.a>=t1.f or (t1.a)>=t1.a) then (c)+t1.d else a end)* -t1.a then e else t1.f end | 13>=b}
+} {10000}
+do_test randexpr-2.1759 {
+  db eval {SELECT (abs(t1.f)/abs(11*19 | case when (e+t1.b*t1.d+(abs(case  -13+t1.d*t1.a-+coalesce((select t1.d from t1 where t1.b not between b and d and d in (select c from t1 union select d from t1)),(19)) when d then 13 else d end*t1.e)/abs(d))+f not between e and t1.a) then ( -f) else d end*a)) FROM t1 WHERE a in (select abs(max(b))-count(distinct case when d not between coalesce((select max(13) from t1 where a+a<+(19)), -f*case (select  -cast(avg(t1.c) AS integer)*cast(avg(c) AS integer)-cast(avg(13) AS integer) from t1)*coalesce((select d from t1 where (e=(f))),t1.d) when t1.a then 17 else 19 end) and d then t1.f when (19 between t1.e and  -a) then t1.a else (t1.c) end) from t1 union select max(t1.e)+~min(t1.c) from t1)}
+} {}
+do_test randexpr-2.1760 {
+  db eval {SELECT (abs(t1.f)/abs(11*19 | case when (e+t1.b*t1.d+(abs(case  -13+t1.d*t1.a-+coalesce((select t1.d from t1 where t1.b not between b and d and d in (select c from t1 union select d from t1)),(19)) when d then 13 else d end*t1.e)/abs(d))+f not between e and t1.a) then ( -f) else d end*a)) FROM t1 WHERE NOT (a in (select abs(max(b))-count(distinct case when d not between coalesce((select max(13) from t1 where a+a<+(19)), -f*case (select  -cast(avg(t1.c) AS integer)*cast(avg(c) AS integer)-cast(avg(13) AS integer) from t1)*coalesce((select d from t1 where (e=(f))),t1.d) when t1.a then 17 else 19 end) and d then t1.f when (19 between t1.e and  -a) then t1.a else (t1.c) end) from t1 union select max(t1.e)+~min(t1.c) from t1))}
+} {0}
+do_test randexpr-2.1761 {
+  db eval {SELECT (abs(t1.f)/abs(11*19 & case when (e+t1.b*t1.d+(abs(case  -13+t1.d*t1.a-+coalesce((select t1.d from t1 where t1.b not between b and d and d in (select c from t1 union select d from t1)),(19)) when d then 13 else d end*t1.e)/abs(d))+f not between e and t1.a) then ( -f) else d end*a)) FROM t1 WHERE NOT (a in (select abs(max(b))-count(distinct case when d not between coalesce((select max(13) from t1 where a+a<+(19)), -f*case (select  -cast(avg(t1.c) AS integer)*cast(avg(c) AS integer)-cast(avg(13) AS integer) from t1)*coalesce((select d from t1 where (e=(f))),t1.d) when t1.a then 17 else 19 end) and d then t1.f when (19 between t1.e and  -a) then t1.a else (t1.c) end) from t1 union select max(t1.e)+~min(t1.c) from t1))}
+} {4}
+do_test randexpr-2.1762 {
+  db eval {SELECT +t1.d | (d)*t1.e | (select case abs((max(t1.e)-abs(+case min(a) | (~(min(~t1.c)))*(abs(abs(count(*))+count(distinct b)*count(distinct 17)))*max(c) when max(t1.c) then max(t1.d) else cast(avg(d) AS integer) end | max(t1.a))))*cast(avg(11) AS integer) when (cast(avg( -a) AS integer)) then min(19) else  -count(distinct 13) end from t1)+t1.b FROM t1 WHERE not exists(select 1 from t1 where e<t1.a)}
+} {200151}
+do_test randexpr-2.1763 {
+  db eval {SELECT +t1.d | (d)*t1.e | (select case abs((max(t1.e)-abs(+case min(a) | (~(min(~t1.c)))*(abs(abs(count(*))+count(distinct b)*count(distinct 17)))*max(c) when max(t1.c) then max(t1.d) else cast(avg(d) AS integer) end | max(t1.a))))*cast(avg(11) AS integer) when (cast(avg( -a) AS integer)) then min(19) else  -count(distinct 13) end from t1)+t1.b FROM t1 WHERE NOT (not exists(select 1 from t1 where e<t1.a))}
+} {}
+do_test randexpr-2.1764 {
+  db eval {SELECT +t1.d & (d)*t1.e & (select case abs((max(t1.e)-abs(+case min(a) & (~(min(~t1.c)))*(abs(abs(count(*))+count(distinct b)*count(distinct 17)))*max(c) when max(t1.c) then max(t1.d) else cast(avg(d) AS integer) end & max(t1.a))))*cast(avg(11) AS integer) when (cast(avg( -a) AS integer)) then min(19) else  -count(distinct 13) end from t1)+t1.b FROM t1 WHERE not exists(select 1 from t1 where e<t1.a)}
+} {0}
+do_test randexpr-2.1765 {
+  db eval {SELECT coalesce((select max(e) from t1 where  -(abs(~(t1.f+b))/abs(t1.f)) not in (~case 11+c*case when  -t1.d not between coalesce((select max(d) from t1 where f- -t1.f+t1.f-13-e<c),(f)) and a then t1.d else t1.a end when d then 17 else 13 end,d,c) or exists(select 1 from t1 where b<d)),13) FROM t1 WHERE (case when (t1.f<>13) or t1.a*t1.f- -a>=t1.d or d in (select  -case cast(avg(b) AS integer) when max(19) then count(distinct  -t1.f) else count(distinct f) end* -max(t1.d) from t1 union select  -cast(avg(13) AS integer) from t1) and 11 between t1.f and d then case when t1.f not between b and 13 then f else t1.e end-t1.c when t1.d in (t1.e,b,d) then t1.f else  -t1.d end-t1.d)*d*f>=a}
+} {}
+do_test randexpr-2.1766 {
+  db eval {SELECT coalesce((select max(e) from t1 where  -(abs(~(t1.f+b))/abs(t1.f)) not in (~case 11+c*case when  -t1.d not between coalesce((select max(d) from t1 where f- -t1.f+t1.f-13-e<c),(f)) and a then t1.d else t1.a end when d then 17 else 13 end,d,c) or exists(select 1 from t1 where b<d)),13) FROM t1 WHERE NOT ((case when (t1.f<>13) or t1.a*t1.f- -a>=t1.d or d in (select  -case cast(avg(b) AS integer) when max(19) then count(distinct  -t1.f) else count(distinct f) end* -max(t1.d) from t1 union select  -cast(avg(13) AS integer) from t1) and 11 between t1.f and d then case when t1.f not between b and 13 then f else t1.e end-t1.c when t1.d in (t1.e,b,d) then t1.f else  -t1.d end-t1.d)*d*f>=a)}
+} {500}
+do_test randexpr-2.1767 {
+  db eval {SELECT case when ~case when t1.a | case when exists(select 1 from t1 where 19 in (select (count(*))-count(*) from t1 union select  -min(b) from t1) or t1.f not in (17,11,t1.c) and t1.d in (a,19,t1.a)) then ~c | 11 else 17 end* -19 in (select count(*) from t1 union select abs( - -case ~cast(avg(t1.b) AS integer) when min(b) then max(a) else (max( -d)) end | count(*)) from t1) then t1.a else t1.c end | b in (select f from t1 union select 13 from t1) then t1.b when t1.a<>(17) then c else t1.a end FROM t1 WHERE exists(select 1 from t1 where d<>13)}
+} {300}
+do_test randexpr-2.1768 {
+  db eval {SELECT case when ~case when t1.a | case when exists(select 1 from t1 where 19 in (select (count(*))-count(*) from t1 union select  -min(b) from t1) or t1.f not in (17,11,t1.c) and t1.d in (a,19,t1.a)) then ~c | 11 else 17 end* -19 in (select count(*) from t1 union select abs( - -case ~cast(avg(t1.b) AS integer) when min(b) then max(a) else (max( -d)) end | count(*)) from t1) then t1.a else t1.c end | b in (select f from t1 union select 13 from t1) then t1.b when t1.a<>(17) then c else t1.a end FROM t1 WHERE NOT (exists(select 1 from t1 where d<>13))}
+} {}
+do_test randexpr-2.1769 {
+  db eval {SELECT case when ~case when t1.a & case when exists(select 1 from t1 where 19 in (select (count(*))-count(*) from t1 union select  -min(b) from t1) or t1.f not in (17,11,t1.c) and t1.d in (a,19,t1.a)) then ~c & 11 else 17 end* -19 in (select count(*) from t1 union select abs( - -case ~cast(avg(t1.b) AS integer) when min(b) then max(a) else (max( -d)) end & count(*)) from t1) then t1.a else t1.c end & b in (select f from t1 union select 13 from t1) then t1.b when t1.a<>(17) then c else t1.a end FROM t1 WHERE exists(select 1 from t1 where d<>13)}
+} {300}
+do_test randexpr-2.1770 {
+  db eval {SELECT coalesce((select a+t1.d from t1 where t1.d+coalesce((select max(case when e not between 11 and case when (abs(f)/abs(t1.f+19*t1.b))>e then ~d when not not 17 in (13,17,t1.a) then f else t1.f end then 11 when b<17 then t1.b else f end) from t1 where exists(select 1 from t1 where (c<>c))), -f)+t1.c in (select (t1.e) from t1 union select c from t1)),c) FROM t1 WHERE not (t1.a)<=case a when t1.f then +coalesce((select max(c) from t1 where (abs(d-11)/abs(t1.a))+t1.f<=d*d*t1.a+coalesce((select 19 from t1 where (select cast(avg(f) AS integer) from t1)*t1.f+19+ -13 in ((t1.d),c,t1.a)),t1.c) or ((not exists(select 1 from t1 where 19 in (select e from t1 union select  -11 from t1))))),c) else e end}
+} {}
+do_test randexpr-2.1771 {
+  db eval {SELECT coalesce((select a+t1.d from t1 where t1.d+coalesce((select max(case when e not between 11 and case when (abs(f)/abs(t1.f+19*t1.b))>e then ~d when not not 17 in (13,17,t1.a) then f else t1.f end then 11 when b<17 then t1.b else f end) from t1 where exists(select 1 from t1 where (c<>c))), -f)+t1.c in (select (t1.e) from t1 union select c from t1)),c) FROM t1 WHERE NOT (not (t1.a)<=case a when t1.f then +coalesce((select max(c) from t1 where (abs(d-11)/abs(t1.a))+t1.f<=d*d*t1.a+coalesce((select 19 from t1 where (select cast(avg(f) AS integer) from t1)*t1.f+19+ -13 in ((t1.d),c,t1.a)),t1.c) or ((not exists(select 1 from t1 where 19 in (select e from t1 union select  -11 from t1))))),c) else e end)}
+} {300}
+do_test randexpr-2.1772 {
+  db eval {SELECT (abs( -c+b)/abs(case when ~11 in (select t1.c from t1 union select coalesce((select t1.f from t1 where coalesce((select max(17) from t1 where coalesce((select case  -t1.d when t1.e then a else b end-(t1.d) from t1 where t1.a not between  -a and t1.b or t1.f<t1.e and e<=a),t1.e)*t1.d not in (b,11,t1.f)),19)<19 and not exists(select 1 from t1 where t1.f>=t1.b) and (f)>= -13),t1.b) from t1) then t1.c when t1.b<=t1.f then 13 else t1.e end)) FROM t1 WHERE (d-coalesce((select max(case 11 when +13-17 | 13 | coalesce((select t1.b from t1 where ((abs(t1.b)/abs((abs(b)/abs(+(19)))*t1.c)) | a in ( -t1.c,t1.a,t1.b))),d)* -d then 13 else 11 end) from t1 where e not in (d,11,11) or t1.e>t1.e),17)+t1.a>b)}
+} {7}
+do_test randexpr-2.1773 {
+  db eval {SELECT (abs( -c+b)/abs(case when ~11 in (select t1.c from t1 union select coalesce((select t1.f from t1 where coalesce((select max(17) from t1 where coalesce((select case  -t1.d when t1.e then a else b end-(t1.d) from t1 where t1.a not between  -a and t1.b or t1.f<t1.e and e<=a),t1.e)*t1.d not in (b,11,t1.f)),19)<19 and not exists(select 1 from t1 where t1.f>=t1.b) and (f)>= -13),t1.b) from t1) then t1.c when t1.b<=t1.f then 13 else t1.e end)) FROM t1 WHERE NOT ((d-coalesce((select max(case 11 when +13-17 | 13 | coalesce((select t1.b from t1 where ((abs(t1.b)/abs((abs(b)/abs(+(19)))*t1.c)) | a in ( -t1.c,t1.a,t1.b))),d)* -d then 13 else 11 end) from t1 where e not in (d,11,11) or t1.e>t1.e),17)+t1.a>b))}
+} {}
+do_test randexpr-2.1774 {
+  db eval {SELECT coalesce((select max(17) from t1 where (e* -t1.f*e*c-coalesce((select max(t1.f) from t1 where t1.c between case when e+~ -t1.e+11 in (select c from t1 union select t1.a from t1) and t1.d>=c then 19 else ( - -(t1.a)) end*c+f and t1.b),13) not in (t1.b,e,t1.c) and (11) not in (b,( -t1.b),13))),19) FROM t1 WHERE d>e+f}
+} {}
+do_test randexpr-2.1775 {
+  db eval {SELECT coalesce((select max(17) from t1 where (e* -t1.f*e*c-coalesce((select max(t1.f) from t1 where t1.c between case when e+~ -t1.e+11 in (select c from t1 union select t1.a from t1) and t1.d>=c then 19 else ( - -(t1.a)) end*c+f and t1.b),13) not in (t1.b,e,t1.c) and (11) not in (b,( -t1.b),13))),19) FROM t1 WHERE NOT (d>e+f)}
+} {17}
+do_test randexpr-2.1776 {
+  db eval {SELECT case when t1.b in (select case 13-(select case count(*) when count(distinct (abs(19)/abs(t1.d)))*~count(distinct 13)*(max((abs(t1.e*d*f)/abs(17)))) then  -case  - -count(distinct e) when min(19) then (cast(avg(17) AS integer)) else count(distinct t1.a) end*max(t1.b)-cast(avg(a) AS integer) else count(distinct t1.d) end from t1)+t1.b*d when t1.c+t1.a then f else t1.f end from t1 union select t1.c from t1) then t1.a when a in (select 11 from t1 union select a from t1) then a else e end FROM t1 WHERE (case when case 11+case f when e then d else (abs(e)/abs(19))*a end when 19 then b else d end<t1.d then t1.c when b>= -19 then 13 else t1.e end between 17 and t1.a or b>=17 and ((( -t1.f))>=t1.c and 17 between t1.c and 19 and t1.c between t1.d and a or t1.d=17) or c in (b,13,17))}
+} {}
+do_test randexpr-2.1777 {
+  db eval {SELECT case when t1.b in (select case 13-(select case count(*) when count(distinct (abs(19)/abs(t1.d)))*~count(distinct 13)*(max((abs(t1.e*d*f)/abs(17)))) then  -case  - -count(distinct e) when min(19) then (cast(avg(17) AS integer)) else count(distinct t1.a) end*max(t1.b)-cast(avg(a) AS integer) else count(distinct t1.d) end from t1)+t1.b*d when t1.c+t1.a then f else t1.f end from t1 union select t1.c from t1) then t1.a when a in (select 11 from t1 union select a from t1) then a else e end FROM t1 WHERE NOT ((case when case 11+case f when e then d else (abs(e)/abs(19))*a end when 19 then b else d end<t1.d then t1.c when b>= -19 then 13 else t1.e end between 17 and t1.a or b>=17 and ((( -t1.f))>=t1.c and 17 between t1.c and 19 and t1.c between t1.d and a or t1.d=17) or c in (b,13,17)))}
+} {100}
+do_test randexpr-2.1778 {
+  db eval {SELECT case when coalesce((select case when (not exists(select 1 from t1 where t1.f<>t1.f)) then case when d-t1.e*t1.d=((select (count(distinct t1.a)) from t1)) then t1.a when 13 not in ( -b,13,19) then t1.b else e end when t1.e=13 then e else 17 end-17*b from t1 where (t1.d in (d,t1.e,t1.f))),( -f)) not in (d,t1.e,c) then t1.d else  -t1.f end* -t1.b FROM t1 WHERE not exists(select 1 from t1 where 11 in (select max(coalesce((select max(case when e+coalesce((select max(d) from t1 where not a<t1.c),(a)) in (((f)),c,13) then t1.e else e end-d) from t1 where 17 between (c) and t1.c),17)) from t1 union select ( -case cast(avg(c) AS integer) when case min(11) when ( -min(e)) then min(t1.b) else min(f) end then  -min(b) else count(distinct 13) end+min(13)- - -count(*)) from t1) or 17 in (19,t1.d,(a)) and exists(select 1 from t1 where t1.e in (t1.d,e,11)))}
+} {}
+do_test randexpr-2.1779 {
+  db eval {SELECT case when coalesce((select case when (not exists(select 1 from t1 where t1.f<>t1.f)) then case when d-t1.e*t1.d=((select (count(distinct t1.a)) from t1)) then t1.a when 13 not in ( -b,13,19) then t1.b else e end when t1.e=13 then e else 17 end-17*b from t1 where (t1.d in (d,t1.e,t1.f))),( -f)) not in (d,t1.e,c) then t1.d else  -t1.f end* -t1.b FROM t1 WHERE NOT (not exists(select 1 from t1 where 11 in (select max(coalesce((select max(case when e+coalesce((select max(d) from t1 where not a<t1.c),(a)) in (((f)),c,13) then t1.e else e end-d) from t1 where 17 between (c) and t1.c),17)) from t1 union select ( -case cast(avg(c) AS integer) when case min(11) when ( -min(e)) then min(t1.b) else min(f) end then  -min(b) else count(distinct 13) end+min(13)- - -count(*)) from t1) or 17 in (19,t1.d,(a)) and exists(select 1 from t1 where t1.e in (t1.d,e,11))))}
+} {-80000}
+do_test randexpr-2.1780 {
+  db eval {SELECT coalesce((select (abs(~c*t1.a+t1.b*coalesce((select case c when b+coalesce((select t1.b-case e when 19 then b else b end*11 from t1 where t1.b<>b or not t1.f in (11,t1.a,t1.e)),t1.a) | e then c else e end from t1 where  -t1.a<11),13))/abs(t1.b))-t1.b*17 from t1 where c=t1.c),17) FROM t1 WHERE t1.e+e>=coalesce((select max(t1.d) from t1 where +(t1.f) not between c and f),case when exists(select 1 from t1 where t1.e+t1.c<>(abs(e*(select  -count(*) from t1))/abs(t1.e*coalesce((select max((select cast(avg(13) AS integer) from t1)) from t1 where not (a) not between  -c and  -17), -d)+ -a+t1.f))) then case when e between 17 and d then a else 19 end when not c between e and 11 then 13 else t1.a end)}
+} {-3051}
+do_test randexpr-2.1781 {
+  db eval {SELECT coalesce((select (abs(~c*t1.a+t1.b*coalesce((select case c when b+coalesce((select t1.b-case e when 19 then b else b end*11 from t1 where t1.b<>b or not t1.f in (11,t1.a,t1.e)),t1.a) | e then c else e end from t1 where  -t1.a<11),13))/abs(t1.b))-t1.b*17 from t1 where c=t1.c),17) FROM t1 WHERE NOT (t1.e+e>=coalesce((select max(t1.d) from t1 where +(t1.f) not between c and f),case when exists(select 1 from t1 where t1.e+t1.c<>(abs(e*(select  -count(*) from t1))/abs(t1.e*coalesce((select max((select cast(avg(13) AS integer) from t1)) from t1 where not (a) not between  -c and  -17), -d)+ -a+t1.f))) then case when e between 17 and d then a else 19 end when not c between e and 11 then 13 else t1.a end))}
+} {}
+do_test randexpr-2.1782 {
+  db eval {SELECT coalesce((select (abs(~c*t1.a+t1.b*coalesce((select case c when b+coalesce((select t1.b-case e when 19 then b else b end*11 from t1 where t1.b<>b or not t1.f in (11,t1.a,t1.e)),t1.a) & e then c else e end from t1 where  -t1.a<11),13))/abs(t1.b))-t1.b*17 from t1 where c=t1.c),17) FROM t1 WHERE t1.e+e>=coalesce((select max(t1.d) from t1 where +(t1.f) not between c and f),case when exists(select 1 from t1 where t1.e+t1.c<>(abs(e*(select  -count(*) from t1))/abs(t1.e*coalesce((select max((select cast(avg(13) AS integer) from t1)) from t1 where not (a) not between  -c and  -17), -d)+ -a+t1.f))) then case when e between 17 and d then a else 19 end when not c between e and 11 then 13 else t1.a end)}
+} {-3051}
+do_test randexpr-2.1783 {
+  db eval {SELECT t1.a-~17-t1.c+t1.c | (c) | (13)*coalesce((select max((case when 11 in (case when (19 in (select abs(max(c)) from t1 union select ( -cast(avg(19) AS integer)) from t1)) then 13 when t1.a= -t1.a then t1.b else c end,a,13) then t1.e when t1.b in (t1.a,13, -19) then d else t1.a end)) from t1 where t1.d between t1.d and t1.b and t1.d<=17),t1.d)*11 | t1.e FROM t1 WHERE e in (select 11 from t1 union select a from t1)}
+} {}
+do_test randexpr-2.1784 {
+  db eval {SELECT t1.a-~17-t1.c+t1.c | (c) | (13)*coalesce((select max((case when 11 in (case when (19 in (select abs(max(c)) from t1 union select ( -cast(avg(19) AS integer)) from t1)) then 13 when t1.a= -t1.a then t1.b else c end,a,13) then t1.e when t1.b in (t1.a,13, -19) then d else t1.a end)) from t1 where t1.d between t1.d and t1.b and t1.d<=17),t1.d)*11 | t1.e FROM t1 WHERE NOT (e in (select 11 from t1 union select a from t1))}
+} {57342}
+do_test randexpr-2.1785 {
+  db eval {SELECT t1.a-~17-t1.c+t1.c & (c) & (13)*coalesce((select max((case when 11 in (case when (19 in (select abs(max(c)) from t1 union select ( -cast(avg(19) AS integer)) from t1)) then 13 when t1.a= -t1.a then t1.b else c end,a,13) then t1.e when t1.b in (t1.a,13, -19) then d else t1.a end)) from t1 where t1.d between t1.d and t1.b and t1.d<=17),t1.d)*11 & t1.e FROM t1 WHERE NOT (e in (select 11 from t1 union select a from t1))}
+} {32}
+do_test randexpr-2.1786 {
+  db eval {SELECT (abs(case when 11 not between t1.d and case coalesce((select case c+case when b in (case when a<=t1.b then (t1.a) when f not in (d,t1.f, -(a)) then (t1.a) else c end,t1.a,b) then 11 when (t1.c not between 17 and  -d) then t1.d else e end+e*t1.a when 19 then b else t1.e end from t1 where not exists(select 1 from t1 where not exists(select 1 from t1 where  -(19)=d))),t1.d) when c then a else  -17 end or a>=19 then 17 else b end+ -13)/abs(b)) FROM t1 WHERE not exists(select 1 from t1 where not e+case 13 when 11 then +t1.d else t1.f+11 end*a-19+t1.c+a in (~e | coalesce((select ~a*+(abs( -case case b*e when f then e else  -13 end when t1.d then t1.b else t1.b end)/abs(17))+t1.b from t1 where t1.a=e),d),e,e))}
+} {}
+do_test randexpr-2.1787 {
+  db eval {SELECT (abs(case when 11 not between t1.d and case coalesce((select case c+case when b in (case when a<=t1.b then (t1.a) when f not in (d,t1.f, -(a)) then (t1.a) else c end,t1.a,b) then 11 when (t1.c not between 17 and  -d) then t1.d else e end+e*t1.a when 19 then b else t1.e end from t1 where not exists(select 1 from t1 where not exists(select 1 from t1 where  -(19)=d))),t1.d) when c then a else  -17 end or a>=19 then 17 else b end+ -13)/abs(b)) FROM t1 WHERE NOT (not exists(select 1 from t1 where not e+case 13 when 11 then +t1.d else t1.f+11 end*a-19+t1.c+a in (~e | coalesce((select ~a*+(abs( -case case b*e when f then e else  -13 end when t1.d then t1.b else t1.b end)/abs(17))+t1.b from t1 where t1.a=e),d),e,e)))}
+} {0}
+do_test randexpr-2.1788 {
+  db eval {SELECT t1.c-coalesce((select t1.e from t1 where not 17 | (select abs(min((t1.c) | +case 19 when d then f else t1.c end*(13)+a)- -count(*)) from t1)>t1.c and (exists(select 1 from t1 where c in (select f from t1 union select a from t1))) or t1.e>t1.c),coalesce((select e*(e) from t1 where not exists(select 1 from t1 where b not in (f,a,19))),c)) FROM t1 WHERE t1.f*t1.e*b+coalesce((select case when 17 not in (case e++t1.d+19*11 when case when 11 in (select  -min(t1.a)*min(t1.e)+cast(avg(t1.a) AS integer) from t1 union select  -count(*) from t1) then 13 else 11 end*17 then a else t1.a end,(t1.b),t1.d) then t1.f else  -b end from t1 where t1.b not between 17 and (a)),d)-t1.d-c*b<c}
+} {}
+do_test randexpr-2.1789 {
+  db eval {SELECT t1.c-coalesce((select t1.e from t1 where not 17 | (select abs(min((t1.c) | +case 19 when d then f else t1.c end*(13)+a)- -count(*)) from t1)>t1.c and (exists(select 1 from t1 where c in (select f from t1 union select a from t1))) or t1.e>t1.c),coalesce((select e*(e) from t1 where not exists(select 1 from t1 where b not in (f,a,19))),c)) FROM t1 WHERE NOT (t1.f*t1.e*b+coalesce((select case when 17 not in (case e++t1.d+19*11 when case when 11 in (select  -min(t1.a)*min(t1.e)+cast(avg(t1.a) AS integer) from t1 union select  -count(*) from t1) then 13 else 11 end*17 then a else t1.a end,(t1.b),t1.d) then t1.f else  -b end from t1 where t1.b not between 17 and (a)),d)-t1.d-c*b<c)}
+} {-200}
+do_test randexpr-2.1790 {
+  db eval {SELECT t1.c-coalesce((select t1.e from t1 where not 17 & (select abs(min((t1.c) & +case 19 when d then f else t1.c end*(13)+a)- -count(*)) from t1)>t1.c and (exists(select 1 from t1 where c in (select f from t1 union select a from t1))) or t1.e>t1.c),coalesce((select e*(e) from t1 where not exists(select 1 from t1 where b not in (f,a,19))),c)) FROM t1 WHERE NOT (t1.f*t1.e*b+coalesce((select case when 17 not in (case e++t1.d+19*11 when case when 11 in (select  -min(t1.a)*min(t1.e)+cast(avg(t1.a) AS integer) from t1 union select  -count(*) from t1) then 13 else 11 end*17 then a else t1.a end,(t1.b),t1.d) then t1.f else  -b end from t1 where t1.b not between 17 and (a)),d)-t1.d-c*b<c)}
+} {-200}
+do_test randexpr-2.1791 {
+  db eval {SELECT c-coalesce((select max(case when (case t1.a when a then case f when e*e then ~c | case when +c>= -b+t1.f | 19 then t1.d else 11 end else t1.a end-t1.e else d end not between f and t1.f) then c else e end) from t1 where f>=t1.b and t1.c between t1.f and t1.a),e)*d*b FROM t1 WHERE t1.b in (select 11-case when (t1.a+19<=case when c>=(19) then 11 else t1.e+t1.a*c end*e and t1.f in (select case abs(+abs( -count(*) | count(*)*count(distinct c)+max(13))) when min(d) then min(b) else min(t1.b) end | cast(avg(t1.e) AS integer) from t1 union select count(distinct t1.e) from t1)) then t1.a else t1.f end*17 from t1 union select t1.a from t1)}
+} {}
+do_test randexpr-2.1792 {
+  db eval {SELECT c-coalesce((select max(case when (case t1.a when a then case f when e*e then ~c | case when +c>= -b+t1.f | 19 then t1.d else 11 end else t1.a end-t1.e else d end not between f and t1.f) then c else e end) from t1 where f>=t1.b and t1.c between t1.f and t1.a),e)*d*b FROM t1 WHERE NOT (t1.b in (select 11-case when (t1.a+19<=case when c>=(19) then 11 else t1.e+t1.a*c end*e and t1.f in (select case abs(+abs( -count(*) | count(*)*count(distinct c)+max(13))) when min(d) then min(b) else min(t1.b) end | cast(avg(t1.e) AS integer) from t1 union select count(distinct t1.e) from t1)) then t1.a else t1.f end*17 from t1 union select t1.a from t1))}
+} {-39999700}
+do_test randexpr-2.1793 {
+  db eval {SELECT c-coalesce((select max(case when (case t1.a when a then case f when e*e then ~c & case when +c>= -b+t1.f & 19 then t1.d else 11 end else t1.a end-t1.e else d end not between f and t1.f) then c else e end) from t1 where f>=t1.b and t1.c between t1.f and t1.a),e)*d*b FROM t1 WHERE NOT (t1.b in (select 11-case when (t1.a+19<=case when c>=(19) then 11 else t1.e+t1.a*c end*e and t1.f in (select case abs(+abs( -count(*) | count(*)*count(distinct c)+max(13))) when min(d) then min(b) else min(t1.b) end | cast(avg(t1.e) AS integer) from t1 union select count(distinct t1.e) from t1)) then t1.a else t1.f end*17 from t1 union select t1.a from t1))}
+} {-39999700}
+do_test randexpr-2.1794 {
+  db eval {SELECT coalesce((select f from t1 where ~coalesce((select max(b-e) from t1 where 13 in (select d from t1 union select d from t1)),(abs(t1.f)/abs(t1.f)))-t1.d+case a when t1.b then 13 else case when 19>case a when t1.a then 13 else  -d end or e<>c then coalesce((select max(a) from t1 where t1.e not between (13) and t1.d),11) when b in (select t1.a from t1 union select t1.f from t1) then 19 else a end end-b>11),17) FROM t1 WHERE b in (select e-17 from t1 union select d from t1)}
+} {}
+do_test randexpr-2.1795 {
+  db eval {SELECT coalesce((select f from t1 where ~coalesce((select max(b-e) from t1 where 13 in (select d from t1 union select d from t1)),(abs(t1.f)/abs(t1.f)))-t1.d+case a when t1.b then 13 else case when 19>case a when t1.a then 13 else  -d end or e<>c then coalesce((select max(a) from t1 where t1.e not between (13) and t1.d),11) when b in (select t1.a from t1 union select t1.f from t1) then 19 else a end end-b>11),17) FROM t1 WHERE NOT (b in (select e-17 from t1 union select d from t1))}
+} {17}
+do_test randexpr-2.1796 {
+  db eval {SELECT coalesce((select case case when 13<>((abs(t1.b)/abs(f+t1.c))) then 11 else coalesce((select max(b) from t1 where (b=(abs((select min((select case  -min(11) when count(distinct d) then count(*) else min(t1.c) end from t1)) from t1))/abs(t1.f))-c)), -19)*e end*d* -e+t1.d when 13 then c else c end+b from t1 where d>13 or (b between t1.e and 19)),a) FROM t1 WHERE not exists(select 1 from t1 where ((not not exists(select 1 from t1 where ((case when coalesce((select max(19) from t1 where case when b>=e and f between t1.d and t1.c or ( -t1.b)=t1.f then b+a else 11 end in (d,t1.d,(17))),t1.d)>t1.b then (t1.f) else d end*e*t1.e<=t1.b)) or 13<>13)) or 17<d) and t1.f in (t1.e,d,t1.b)) and e<=a}
+} {}
+do_test randexpr-2.1797 {
+  db eval {SELECT coalesce((select case case when 13<>((abs(t1.b)/abs(f+t1.c))) then 11 else coalesce((select max(b) from t1 where (b=(abs((select min((select case  -min(11) when count(distinct d) then count(*) else min(t1.c) end from t1)) from t1))/abs(t1.f))-c)), -19)*e end*d* -e+t1.d when 13 then c else c end+b from t1 where d>13 or (b between t1.e and 19)),a) FROM t1 WHERE NOT (not exists(select 1 from t1 where ((not not exists(select 1 from t1 where ((case when coalesce((select max(19) from t1 where case when b>=e and f between t1.d and t1.c or ( -t1.b)=t1.f then b+a else 11 end in (d,t1.d,(17))),t1.d)>t1.b then (t1.f) else d end*e*t1.e<=t1.b)) or 13<>13)) or 17<d) and t1.f in (t1.e,d,t1.b)) and e<=a)}
+} {500}
+do_test randexpr-2.1798 {
+  db eval {SELECT ~case when 19 not between ~case when coalesce((select max(t1.c*(select cast(avg(13) AS integer) from t1)) from t1 where exists(select 1 from t1 where case when (t1.b in (d,b,t1.c)) and 13>t1.d then e+t1.c when 19 between t1.f and t1.f then 11 else e end between t1.e and 17) and c=t1.f),t1.c) not between t1.a and (19) then c else t1.b end*a-19 and b then b when a not in (a,t1.f,11) then a else a end FROM t1 WHERE (select abs((+min(t1.c)*min(t1.d)*count(*)))*count(*)++count(distinct ~13*11+t1.f) | case abs(+count(*)) when min(t1.e) then count(*) else max(13) end from t1)*t1.b between d and a++19 and t1.c in (select ~((abs(17)/abs(c)))-d from t1 union select t1.f from t1)}
+} {}
+do_test randexpr-2.1799 {
+  db eval {SELECT ~case when 19 not between ~case when coalesce((select max(t1.c*(select cast(avg(13) AS integer) from t1)) from t1 where exists(select 1 from t1 where case when (t1.b in (d,b,t1.c)) and 13>t1.d then e+t1.c when 19 between t1.f and t1.f then 11 else e end between t1.e and 17) and c=t1.f),t1.c) not between t1.a and (19) then c else t1.b end*a-19 and b then b when a not in (a,t1.f,11) then a else a end FROM t1 WHERE NOT ((select abs((+min(t1.c)*min(t1.d)*count(*)))*count(*)++count(distinct ~13*11+t1.f) | case abs(+count(*)) when min(t1.e) then count(*) else max(13) end from t1)*t1.b between d and a++19 and t1.c in (select ~((abs(17)/abs(c)))-d from t1 union select t1.f from t1))}
+} {-101}
+do_test randexpr-2.1800 {
+  db eval {SELECT (t1.d)+(abs(coalesce((select ((abs(case t1.e when a+(abs(11)/abs(b)) then t1.f else case coalesce((select max(d+c) from t1 where +19+11<b),t1.d)-t1.d-t1.d*d when t1.c then  -e else t1.d end end-c)/abs(17))) from t1 where 17<>t1.c),d))/abs(t1.d))-11 | (17) | b FROM t1 WHERE (select ~min(b)+count(distinct 17) from t1)>(select max((abs((13))/abs(coalesce((select case when b*13 in (case when e=t1.b then c when 11<>e then f else t1.b end,t1.f,t1.a) then d when not exists(select 1 from t1 where t1.f<>e) then t1.a else c end from t1 where t1.e=13),t1.f) | b)))+(~~cast(avg(f) AS integer)-min((13))) from t1)}
+} {}
+do_test randexpr-2.1801 {
+  db eval {SELECT (t1.d)+(abs(coalesce((select ((abs(case t1.e when a+(abs(11)/abs(b)) then t1.f else case coalesce((select max(d+c) from t1 where +19+11<b),t1.d)-t1.d-t1.d*d when t1.c then  -e else t1.d end end-c)/abs(17))) from t1 where 17<>t1.c),d))/abs(t1.d))-11 | (17) | b FROM t1 WHERE NOT ((select ~min(b)+count(distinct 17) from t1)>(select max((abs((13))/abs(coalesce((select case when b*13 in (case when e=t1.b then c when 11<>e then f else t1.b end,t1.f,t1.a) then d when not exists(select 1 from t1 where t1.f<>e) then t1.a else c end from t1 where t1.e=13),t1.f) | b)))+(~~cast(avg(f) AS integer)-min((13))) from t1))}
+} {477}
+do_test randexpr-2.1802 {
+  db eval {SELECT (t1.d)+(abs(coalesce((select ((abs(case t1.e when a+(abs(11)/abs(b)) then t1.f else case coalesce((select max(d+c) from t1 where +19+11<b),t1.d)-t1.d-t1.d*d when t1.c then  -e else t1.d end end-c)/abs(17))) from t1 where 17<>t1.c),d))/abs(t1.d))-11 & (17) & b FROM t1 WHERE NOT ((select ~min(b)+count(distinct 17) from t1)>(select max((abs((13))/abs(coalesce((select case when b*13 in (case when e=t1.b then c when 11<>e then f else t1.b end,t1.f,t1.a) then d when not exists(select 1 from t1 where t1.f<>e) then t1.a else c end from t1 where t1.e=13),t1.f) | b)))+(~~cast(avg(f) AS integer)-min((13))) from t1))}
+} {0}
+do_test randexpr-2.1803 {
+  db eval {SELECT d+case coalesce((select t1.f from t1 where coalesce((select max((11)) from t1 where (coalesce((select d from t1 where ((case b when ( -a) then 19 else e end)) not in ( -d,t1.c,13)),b))>t1.b and ((c in (select ~~cast(avg(t1.b) AS integer)+ -(max(t1.e)) from t1 union select max(c) from t1) and (e) in (select  -count(distinct 17) from t1 union select count(*) from t1) or 11<>t1.c))),t1.b) not between (f) and 11),t1.d) when (19) then e else 13 end-t1.f FROM t1 WHERE exists(select 1 from t1 where (t1.a between case when e | b*c-19 | a<t1.a or (19 in (select coalesce((select max(f) from t1 where e<19),t1.e-17 | t1.e) from t1 union select 13 from t1)) then coalesce((select t1.e from t1 where not exists(select 1 from t1 where 11<=19) or exists(select 1 from t1 where  -(e) between a and 19) or b between b and c),c) else f end and 19))}
+} {}
+do_test randexpr-2.1804 {
+  db eval {SELECT d+case coalesce((select t1.f from t1 where coalesce((select max((11)) from t1 where (coalesce((select d from t1 where ((case b when ( -a) then 19 else e end)) not in ( -d,t1.c,13)),b))>t1.b and ((c in (select ~~cast(avg(t1.b) AS integer)+ -(max(t1.e)) from t1 union select max(c) from t1) and (e) in (select  -count(distinct 17) from t1 union select count(*) from t1) or 11<>t1.c))),t1.b) not between (f) and 11),t1.d) when (19) then e else 13 end-t1.f FROM t1 WHERE NOT (exists(select 1 from t1 where (t1.a between case when e | b*c-19 | a<t1.a or (19 in (select coalesce((select max(f) from t1 where e<19),t1.e-17 | t1.e) from t1 union select 13 from t1)) then coalesce((select t1.e from t1 where not exists(select 1 from t1 where 11<=19) or exists(select 1 from t1 where  -(e) between a and 19) or b between b and c),c) else f end and 19)))}
+} {-187}
+do_test randexpr-2.1805 {
+  db eval {SELECT coalesce((select c from t1 where  - -19-coalesce((select t1.e from t1 where not f<=b-17 or not  -13>=f or (select  -count(*) from t1) in (select t1.c from t1 union select 17 from t1)),b)*e not between case coalesce((select max(~case when 17>t1.e then d else 13 end) from t1 where not t1.c<=17),t1.c) when 13 then c else t1.e end+t1.c-t1.e and t1.e),t1.e) FROM t1 WHERE case ~case when not exists(select 1 from t1 where f<=~t1.d) then (abs(coalesce((select ~19 from t1 where d+t1.f=b),d))/abs(e)) when d in (select +min(11) from t1 union select ( -abs(count(distinct e)))+count(distinct t1.a) from t1) then e else t1.d end when  -d then t1.e else t1.b end=t1.f or t1.d not in (t1.c,t1.e,t1.e) and t1.c not in (17,t1.a,e)}
+} {300}
+do_test randexpr-2.1806 {
+  db eval {SELECT coalesce((select c from t1 where  - -19-coalesce((select t1.e from t1 where not f<=b-17 or not  -13>=f or (select  -count(*) from t1) in (select t1.c from t1 union select 17 from t1)),b)*e not between case coalesce((select max(~case when 17>t1.e then d else 13 end) from t1 where not t1.c<=17),t1.c) when 13 then c else t1.e end+t1.c-t1.e and t1.e),t1.e) FROM t1 WHERE NOT (case ~case when not exists(select 1 from t1 where f<=~t1.d) then (abs(coalesce((select ~19 from t1 where d+t1.f=b),d))/abs(e)) when d in (select +min(11) from t1 union select ( -abs(count(distinct e)))+count(distinct t1.a) from t1) then e else t1.d end when  -d then t1.e else t1.b end=t1.f or t1.d not in (t1.c,t1.e,t1.e) and t1.c not in (17,t1.a,e))}
+} {}
+do_test randexpr-2.1807 {
+  db eval {SELECT case when t1.e<=~d then case when t1.d-e in (~t1.c-case e*case when t1.e not in (t1.d,19,f) then e else b end*e when (19) then t1.a else  -e end,19,17) then t1.f when t1.d not in (t1.b,b,17) then t1.b else 19 end when 13= -t1.f and not (19=t1.d) then t1.f else (d) end FROM t1 WHERE 19<>d}
+} {400}
+do_test randexpr-2.1808 {
+  db eval {SELECT case when t1.e<=~d then case when t1.d-e in (~t1.c-case e*case when t1.e not in (t1.d,19,f) then e else b end*e when (19) then t1.a else  -e end,19,17) then t1.f when t1.d not in (t1.b,b,17) then t1.b else 19 end when 13= -t1.f and not (19=t1.d) then t1.f else (d) end FROM t1 WHERE NOT (19<>d)}
+} {}
+do_test randexpr-2.1809 {
+  db eval {SELECT (select max(case when (t1.d<=t1.a*t1.b) then t1.e else case when t1.a> -t1.c*t1.f then b else b*(a) end end)*min(+ -19-(select min(a) from t1)-+17*case when not exists(select 1 from t1 where (select abs(cast(avg(a) AS integer)) from t1)=t1.a) then e when 19>=a then 13 else t1.a end*19-e) from t1) FROM t1 WHERE t1.e in (select max(t1.e)-cast(avg(e) AS integer) from t1 union select (~+count(*) | count(*) | cast(avg((abs(coalesce((select max(case f+c-17 when t1.b then t1.e else t1.d end) from t1 where 17 in (select a from t1 union select t1.b from t1)),a))/abs( -t1.e))) AS integer)+~case count(*) when cast(avg(t1.d) AS integer) then  -cast(avg(t1.e) AS integer) else count(distinct d) end-max(13)+ -min(t1.a) | min((17)) | count(distinct d))-min(e) from t1)}
+} {}
+do_test randexpr-2.1810 {
+  db eval {SELECT (select max(case when (t1.d<=t1.a*t1.b) then t1.e else case when t1.a> -t1.c*t1.f then b else b*(a) end end)*min(+ -19-(select min(a) from t1)-+17*case when not exists(select 1 from t1 where (select abs(cast(avg(a) AS integer)) from t1)=t1.a) then e when 19>=a then 13 else t1.a end*19-e) from t1) FROM t1 WHERE NOT (t1.e in (select max(t1.e)-cast(avg(e) AS integer) from t1 union select (~+count(*) | count(*) | cast(avg((abs(coalesce((select max(case f+c-17 when t1.b then t1.e else t1.d end) from t1 where 17 in (select a from t1 union select t1.b from t1)),a))/abs( -t1.e))) AS integer)+~case count(*) when cast(avg(t1.d) AS integer) then  -cast(avg(t1.e) AS integer) else count(distinct d) end-max(13)+ -min(t1.a) | min((17)) | count(distinct d))-min(e) from t1))}
+} {-16459500}
+do_test randexpr-2.1811 {
+  db eval {SELECT case when case (select max(t1.b)*min(case when (abs(t1.e)/abs(d)) in (select 19 from t1 union select +t1.d from t1) then t1.d when t1.d=d or 11 in (t1.c,b,t1.b) and 13 in (select max(b)-count(distinct b) from t1 union select count(distinct  -t1.c) from t1) then f else 17 end) from t1) when t1.a then 11 else t1.d end+t1.a>c or t1.c between 13 and a then f when (t1.b)>=t1.a then d else b end FROM t1 WHERE (not exists(select 1 from t1 where coalesce((select max(e) from t1 where  -b+a-(abs(c)/abs(b))-( -t1.a)-t1.c>=d),d) in (select count(distinct a) from t1 union select cast(avg(t1.b) AS integer) from t1) and exists(select 1 from t1 where not t1.d<>f) and t1.a in (select min(t1.a)+max(a)*max(19)*count(distinct c) from t1 union select ((count(distinct 11))) from t1) or t1.c>(13) and a between (t1.f) and 13))}
+} {600}
+do_test randexpr-2.1812 {
+  db eval {SELECT case when case (select max(t1.b)*min(case when (abs(t1.e)/abs(d)) in (select 19 from t1 union select +t1.d from t1) then t1.d when t1.d=d or 11 in (t1.c,b,t1.b) and 13 in (select max(b)-count(distinct b) from t1 union select count(distinct  -t1.c) from t1) then f else 17 end) from t1) when t1.a then 11 else t1.d end+t1.a>c or t1.c between 13 and a then f when (t1.b)>=t1.a then d else b end FROM t1 WHERE NOT ((not exists(select 1 from t1 where coalesce((select max(e) from t1 where  -b+a-(abs(c)/abs(b))-( -t1.a)-t1.c>=d),d) in (select count(distinct a) from t1 union select cast(avg(t1.b) AS integer) from t1) and exists(select 1 from t1 where not t1.d<>f) and t1.a in (select min(t1.a)+max(a)*max(19)*count(distinct c) from t1 union select ((count(distinct 11))) from t1) or t1.c>(13) and a between (t1.f) and 13)))}
+} {}
+do_test randexpr-2.1813 {
+  db eval {SELECT f*~13*(abs(13*d- -(abs(case when ~coalesce((select max(c) from t1 where b>case when not exists(select 1 from t1 where f not in ( - -(t1.b),t1.b,t1.f)) then e when t1.c<>f then c else 13 end),17) |  -19 not in (f,b,f) then  -b when not 13 in (select max((19)) from t1 union select count(*) | count(*) from t1) and 11 not between t1.b and e or 13 in (t1.a, -e,(t1.c)) then a else 11 end)/abs(t1.c))*b | t1.b)/abs(f))*f*f FROM t1 WHERE ~case f when coalesce((select max(17) from t1 where b+t1.f*case 11 when coalesce((select max(t1.f) from t1 where 17>t1.f),19)-t1.b-t1.b | d then b else c end+t1.d*11-t1.c<=case when b>=a then 19 else f end | t1.a),13) then f else t1.e end*t1.e*17-d in (select 13 from t1 union select t1.e from t1)}
+} {}
+do_test randexpr-2.1814 {
+  db eval {SELECT f*~13*(abs(13*d- -(abs(case when ~coalesce((select max(c) from t1 where b>case when not exists(select 1 from t1 where f not in ( - -(t1.b),t1.b,t1.f)) then e when t1.c<>f then c else 13 end),17) |  -19 not in (f,b,f) then  -b when not 13 in (select max((19)) from t1 union select count(*) | count(*) from t1) and 11 not between t1.b and e or 13 in (t1.a, -e,(t1.c)) then a else 11 end)/abs(t1.c))*b | t1.b)/abs(f))*f*f FROM t1 WHERE NOT (~case f when coalesce((select max(17) from t1 where b+t1.f*case 11 when coalesce((select max(t1.f) from t1 where 17>t1.f),19)-t1.b-t1.b | d then b else c end+t1.d*11-t1.c<=case when b>=a then 19 else f end | t1.a),13) then f else t1.e end*t1.e*17-d in (select 13 from t1 union select t1.e from t1))}
+} {-24192000000}
+do_test randexpr-2.1815 {
+  db eval {SELECT f*~13*(abs(13*d- -(abs(case when ~coalesce((select max(c) from t1 where b>case when not exists(select 1 from t1 where f not in ( - -(t1.b),t1.b,t1.f)) then e when t1.c<>f then c else 13 end),17) &  -19 not in (f,b,f) then  -b when not 13 in (select max((19)) from t1 union select count(*) & count(*) from t1) and 11 not between t1.b and e or 13 in (t1.a, -e,(t1.c)) then a else 11 end)/abs(t1.c))*b & t1.b)/abs(f))*f*f FROM t1 WHERE NOT (~case f when coalesce((select max(17) from t1 where b+t1.f*case 11 when coalesce((select max(t1.f) from t1 where 17>t1.f),19)-t1.b-t1.b | d then b else c end+t1.d*11-t1.c<=case when b>=a then 19 else f end | t1.a),13) then f else t1.e end*t1.e*17-d in (select 13 from t1 union select t1.e from t1))}
+} {0}
+do_test randexpr-2.1816 {
+  db eval {SELECT t1.b | (select case max( -17)-min(17) when cast(avg(a) AS integer)*(+cast(avg(f) AS integer)-cast(avg(case when not exists(select 1 from t1 where not case when t1.c<>t1.b or  -d not between b and a then 11 when (11)=11 then b else t1.b end in (t1.d,t1.c,13)) then 13 when t1.e not between 17 and t1.b then t1.c else t1.d end*t1.b) AS integer))-cast(avg(19) AS integer)*~max(t1.c)-((max(13)))*(count(*))+(max(11)) then count(distinct 13) else cast(avg(17) AS integer) end from t1) FROM t1 WHERE (abs(t1.c)/abs(case t1.d when t1.f then 13 else t1.f+13 end)) not between c and 19}
+} {217}
+do_test randexpr-2.1817 {
+  db eval {SELECT t1.b | (select case max( -17)-min(17) when cast(avg(a) AS integer)*(+cast(avg(f) AS integer)-cast(avg(case when not exists(select 1 from t1 where not case when t1.c<>t1.b or  -d not between b and a then 11 when (11)=11 then b else t1.b end in (t1.d,t1.c,13)) then 13 when t1.e not between 17 and t1.b then t1.c else t1.d end*t1.b) AS integer))-cast(avg(19) AS integer)*~max(t1.c)-((max(13)))*(count(*))+(max(11)) then count(distinct 13) else cast(avg(17) AS integer) end from t1) FROM t1 WHERE NOT ((abs(t1.c)/abs(case t1.d when t1.f then 13 else t1.f+13 end)) not between c and 19)}
+} {}
+do_test randexpr-2.1818 {
+  db eval {SELECT t1.b & (select case max( -17)-min(17) when cast(avg(a) AS integer)*(+cast(avg(f) AS integer)-cast(avg(case when not exists(select 1 from t1 where not case when t1.c<>t1.b or  -d not between b and a then 11 when (11)=11 then b else t1.b end in (t1.d,t1.c,13)) then 13 when t1.e not between 17 and t1.b then t1.c else t1.d end*t1.b) AS integer))-cast(avg(19) AS integer)*~max(t1.c)-((max(13)))*(count(*))+(max(11)) then count(distinct 13) else cast(avg(17) AS integer) end from t1) FROM t1 WHERE (abs(t1.c)/abs(case t1.d when t1.f then 13 else t1.f+13 end)) not between c and 19}
+} {0}
+do_test randexpr-2.1819 {
+  db eval {SELECT case +c-case (select case count(distinct 13) when min(19*e) then ~count(*) else ~min(case when not +13*(case when e*c>=e then e else f end)-a+c not in (b,t1.b,t1.e) then 19 else 17 end*a) end from t1) when 11 then 11 else c end+t1.c when t1.b then d else 19 end FROM t1 WHERE t1.a<>~coalesce((select max(e) from t1 where 13-17*13<>19*17-f or coalesce((select max(~case +t1.d-f*e | c+(17)+a | c*((b)) when a then t1.a else d end-d) from t1 where t1.c>= -t1.a),t1.b) | 19>t1.a),c)}
+} {19}
+do_test randexpr-2.1820 {
+  db eval {SELECT case +c-case (select case count(distinct 13) when min(19*e) then ~count(*) else ~min(case when not +13*(case when e*c>=e then e else f end)-a+c not in (b,t1.b,t1.e) then 19 else 17 end*a) end from t1) when 11 then 11 else c end+t1.c when t1.b then d else 19 end FROM t1 WHERE NOT (t1.a<>~coalesce((select max(e) from t1 where 13-17*13<>19*17-f or coalesce((select max(~case +t1.d-f*e | c+(17)+a | c*((b)) when a then t1.a else d end-d) from t1 where t1.c>= -t1.a),t1.b) | 19>t1.a),c))}
+} {}
+do_test randexpr-2.1821 {
+  db eval {SELECT coalesce((select max(t1.d) from t1 where f between case when (19 not in (t1.b,(a),t1.a)) or t1.a=t1.b |  -(select +cast(avg(17-case when  -c<=17 then a when  -11 not in (11,19,a) then e else 11 end-t1.a*d) AS integer) from t1) then t1.b when (11)*f in (13,t1.a,a) or t1.a<t1.d then b*t1.f else a end and  -11), -b) FROM t1 WHERE (f-b<case case (a) when a then 19+coalesce((select t1.a from t1 where 11 between +coalesce((select max(case when t1.b not in (t1.f,f,t1.b) and a in (select 11 from t1 union select c from t1) then ~(t1.e) else 13 end) from t1 where t1.c>=e),f)*b-f and t1.f),t1.b) else d end+19 when t1.a then 11 else e end-t1.a)}
+} {}
+do_test randexpr-2.1822 {
+  db eval {SELECT coalesce((select max(t1.d) from t1 where f between case when (19 not in (t1.b,(a),t1.a)) or t1.a=t1.b |  -(select +cast(avg(17-case when  -c<=17 then a when  -11 not in (11,19,a) then e else 11 end-t1.a*d) AS integer) from t1) then t1.b when (11)*f in (13,t1.a,a) or t1.a<t1.d then b*t1.f else a end and  -11), -b) FROM t1 WHERE NOT ((f-b<case case (a) when a then 19+coalesce((select t1.a from t1 where 11 between +coalesce((select max(case when t1.b not in (t1.f,f,t1.b) and a in (select 11 from t1 union select c from t1) then ~(t1.e) else 13 end) from t1 where t1.c>=e),f)*b-f and t1.f),t1.b) else d end+19 when t1.a then 11 else e end-t1.a))}
+} {-200}
+do_test randexpr-2.1823 {
+  db eval {SELECT coalesce((select max(t1.d) from t1 where f between case when (19 not in (t1.b,(a),t1.a)) or t1.a=t1.b &  -(select +cast(avg(17-case when  -c<=17 then a when  -11 not in (11,19,a) then e else 11 end-t1.a*d) AS integer) from t1) then t1.b when (11)*f in (13,t1.a,a) or t1.a<t1.d then b*t1.f else a end and  -11), -b) FROM t1 WHERE NOT ((f-b<case case (a) when a then 19+coalesce((select t1.a from t1 where 11 between +coalesce((select max(case when t1.b not in (t1.f,f,t1.b) and a in (select 11 from t1 union select c from t1) then ~(t1.e) else 13 end) from t1 where t1.c>=e),f)*b-f and t1.f),t1.b) else d end+19 when t1.a then 11 else e end-t1.a))}
+} {-200}
+do_test randexpr-2.1824 {
+  db eval {SELECT case when not  -t1.c in (coalesce((select d from t1 where t1.a not in (t1.c+f, -f,19) and t1.b in (select max(t1.d)+min(19)*min(t1.e) from t1 union select count(distinct d) from t1) and (t1.d) in (select  -count(*) from t1 union select  -count(*) from t1)),d* -t1.e),b,f) or  -c not in (a, -t1.a,t1.e) then case when b between 17 and t1.b and a not in (t1.a,e,t1.e) then t1.d else 19 end*t1.b else t1.d end+t1.d FROM t1 WHERE (abs((17))/abs(11 | e*e+d++t1.d)) in (19+t1.f,e,(abs(13)/abs( -t1.c)))}
+} {4200}
+do_test randexpr-2.1825 {
+  db eval {SELECT case when not  -t1.c in (coalesce((select d from t1 where t1.a not in (t1.c+f, -f,19) and t1.b in (select max(t1.d)+min(19)*min(t1.e) from t1 union select count(distinct d) from t1) and (t1.d) in (select  -count(*) from t1 union select  -count(*) from t1)),d* -t1.e),b,f) or  -c not in (a, -t1.a,t1.e) then case when b between 17 and t1.b and a not in (t1.a,e,t1.e) then t1.d else 19 end*t1.b else t1.d end+t1.d FROM t1 WHERE NOT ((abs((17))/abs(11 | e*e+d++t1.d)) in (19+t1.f,e,(abs(13)/abs( -t1.c))))}
+} {}
+do_test randexpr-2.1826 {
+  db eval {SELECT case when ( -(select ~ -~ -(max(c))-min(t1.e) | count(distinct (11)) | min(t1.a) from t1)-case when case d when a then case when t1.e=t1.a then t1.c else c end else c end<=t1.f then t1.b when t1.c not in (a,19,c) then b else 17 end>=19) or d in (19,f, -11) then 19 else (select case min(t1.a)-(cast(avg(t1.f) AS integer))-(min(11)) when count(*) then count(*) else count(distinct a) end from t1) end FROM t1 WHERE not exists(select 1 from t1 where (abs(11-13)/abs(f))>19*~19+t1.d-t1.f+coalesce((select max(f) from t1 where t1.a-t1.e+case when case when a not between t1.c and 19 and  -t1.e>t1.c then case when t1.f in (t1.d,e,t1.f) then d when c not in (11,t1.c,d) then t1.a else a end when t1.b=11 then t1.c else t1.e end>e then e else e end-11<t1.f),c)- -c-17) or 19<>t1.f}
+} {1}
+do_test randexpr-2.1827 {
+  db eval {SELECT case when ( -(select ~ -~ -(max(c))-min(t1.e) | count(distinct (11)) | min(t1.a) from t1)-case when case d when a then case when t1.e=t1.a then t1.c else c end else c end<=t1.f then t1.b when t1.c not in (a,19,c) then b else 17 end>=19) or d in (19,f, -11) then 19 else (select case min(t1.a)-(cast(avg(t1.f) AS integer))-(min(11)) when count(*) then count(*) else count(distinct a) end from t1) end FROM t1 WHERE NOT (not exists(select 1 from t1 where (abs(11-13)/abs(f))>19*~19+t1.d-t1.f+coalesce((select max(f) from t1 where t1.a-t1.e+case when case when a not between t1.c and 19 and  -t1.e>t1.c then case when t1.f in (t1.d,e,t1.f) then d when c not in (11,t1.c,d) then t1.a else a end when t1.b=11 then t1.c else t1.e end>e then e else e end-11<t1.f),c)- -c-17) or 19<>t1.f)}
+} {}
+do_test randexpr-2.1828 {
+  db eval {SELECT case when ( -(select ~ -~ -(max(c))-min(t1.e) & count(distinct (11)) & min(t1.a) from t1)-case when case d when a then case when t1.e=t1.a then t1.c else c end else c end<=t1.f then t1.b when t1.c not in (a,19,c) then b else 17 end>=19) or d in (19,f, -11) then 19 else (select case min(t1.a)-(cast(avg(t1.f) AS integer))-(min(11)) when count(*) then count(*) else count(distinct a) end from t1) end FROM t1 WHERE not exists(select 1 from t1 where (abs(11-13)/abs(f))>19*~19+t1.d-t1.f+coalesce((select max(f) from t1 where t1.a-t1.e+case when case when a not between t1.c and 19 and  -t1.e>t1.c then case when t1.f in (t1.d,e,t1.f) then d when c not in (11,t1.c,d) then t1.a else a end when t1.b=11 then t1.c else t1.e end>e then e else e end-11<t1.f),c)- -c-17) or 19<>t1.f}
+} {1}
+do_test randexpr-2.1829 {
+  db eval {SELECT t1.e | t1.a*~(17)-t1.c*f*f-coalesce((select max( -t1.a+coalesce((select t1.a from t1 where 19 not between 17 and f),(t1.b))*c+11) from t1 where 19 in (select  -cast(avg(f) AS integer)-cast(avg(a) AS integer)*count(distinct d) from t1 union select count(*) from t1) and t1.d in (17,t1.d, -t1.c) or 19<>19),a)*11 FROM t1 WHERE not +19+coalesce((select  -19 from t1 where t1.c | e in (select ~ -abs(case ~abs(+(count(distinct 17) | case ~(max(t1.a))+(+~ -min(17)) when abs(min(t1.c)) then count(distinct 17) else  -cast(avg(t1.e) AS integer) end)*cast(avg(c) AS integer)*cast(avg(t1.b) AS integer)) when count(distinct t1.d) then min(b) else  -cast(avg(d) AS integer) end) from t1 union select count(*) from t1)),13)>13}
+} {}
+do_test randexpr-2.1830 {
+  db eval {SELECT t1.e | t1.a*~(17)-t1.c*f*f-coalesce((select max( -t1.a+coalesce((select t1.a from t1 where 19 not between 17 and f),(t1.b))*c+11) from t1 where 19 in (select  -cast(avg(f) AS integer)-cast(avg(a) AS integer)*count(distinct d) from t1 union select count(*) from t1) and t1.d in (17,t1.d, -t1.c) or 19<>19),a)*11 FROM t1 WHERE NOT (not +19+coalesce((select  -19 from t1 where t1.c | e in (select ~ -abs(case ~abs(+(count(distinct 17) | case ~(max(t1.a))+(+~ -min(17)) when abs(min(t1.c)) then count(distinct 17) else  -cast(avg(t1.e) AS integer) end)*cast(avg(c) AS integer)*cast(avg(t1.b) AS integer)) when count(distinct t1.d) then min(b) else  -cast(avg(d) AS integer) end) from t1 union select count(*) from t1)),13)>13)}
+} {-108002820}
+do_test randexpr-2.1831 {
+  db eval {SELECT t1.e & t1.a*~(17)-t1.c*f*f-coalesce((select max( -t1.a+coalesce((select t1.a from t1 where 19 not between 17 and f),(t1.b))*c+11) from t1 where 19 in (select  -cast(avg(f) AS integer)-cast(avg(a) AS integer)*count(distinct d) from t1 union select count(*) from t1) and t1.d in (17,t1.d, -t1.c) or 19<>19),a)*11 FROM t1 WHERE NOT (not +19+coalesce((select  -19 from t1 where t1.c | e in (select ~ -abs(case ~abs(+(count(distinct 17) | case ~(max(t1.a))+(+~ -min(17)) when abs(min(t1.c)) then count(distinct 17) else  -cast(avg(t1.e) AS integer) end)*cast(avg(c) AS integer)*cast(avg(t1.b) AS integer)) when count(distinct t1.d) then min(b) else  -cast(avg(d) AS integer) end) from t1 union select count(*) from t1)),13)>13)}
+} {420}
+do_test randexpr-2.1832 {
+  db eval {SELECT case when t1.a<(abs((abs(13)/abs(case t1.e+11*17*case +case case when ~19>=t1.c then f when f not in (a,e,d) then 19 else b end when 19 then 19 else b end |  -c when c then t1.c else c end*d-t1.e when e then 13 else c end)))/abs(t1.b)) then 17 when t1.b not in (t1.a,13,e) then e else  -t1.c end FROM t1 WHERE 19>=11}
+} {500}
+do_test randexpr-2.1833 {
+  db eval {SELECT case when t1.a<(abs((abs(13)/abs(case t1.e+11*17*case +case case when ~19>=t1.c then f when f not in (a,e,d) then 19 else b end when 19 then 19 else b end |  -c when c then t1.c else c end*d-t1.e when e then 13 else c end)))/abs(t1.b)) then 17 when t1.b not in (t1.a,13,e) then e else  -t1.c end FROM t1 WHERE NOT (19>=11)}
+} {}
+do_test randexpr-2.1834 {
+  db eval {SELECT case when t1.a<(abs((abs(13)/abs(case t1.e+11*17*case +case case when ~19>=t1.c then f when f not in (a,e,d) then 19 else b end when 19 then 19 else b end &  -c when c then t1.c else c end*d-t1.e when e then 13 else c end)))/abs(t1.b)) then 17 when t1.b not in (t1.a,13,e) then e else  -t1.c end FROM t1 WHERE 19>=11}
+} {500}
+do_test randexpr-2.1835 {
+  db eval {SELECT coalesce((select (select count(*)-+count(*) from t1) from t1 where +t1.f+t1.f<~case when exists(select 1 from t1 where coalesce((select t1.a from t1 where b-19<t1.f),11) in (case when  -(select count(distinct t1.a) from t1)-c-t1.d between b and (d) then d else t1.e end,f,c)) then t1.b when t1.e<>(11) then d else (c) end+e+t1.d),c) FROM t1 WHERE case when t1.f+(select min(t1.c+(abs(13+(abs(t1.e+d-11-e+d+c)/abs(t1.e))-c*t1.f)/abs(t1.b))) from t1)+f=d or t1.b not between t1.e and t1.a then 11-a when (13 in (13,19,19)) then t1.d else t1.b end<t1.f}
+} {300}
+do_test randexpr-2.1836 {
+  db eval {SELECT coalesce((select (select count(*)-+count(*) from t1) from t1 where +t1.f+t1.f<~case when exists(select 1 from t1 where coalesce((select t1.a from t1 where b-19<t1.f),11) in (case when  -(select count(distinct t1.a) from t1)-c-t1.d between b and (d) then d else t1.e end,f,c)) then t1.b when t1.e<>(11) then d else (c) end+e+t1.d),c) FROM t1 WHERE NOT (case when t1.f+(select min(t1.c+(abs(13+(abs(t1.e+d-11-e+d+c)/abs(t1.e))-c*t1.f)/abs(t1.b))) from t1)+f=d or t1.b not between t1.e and t1.a then 11-a when (13 in (13,19,19)) then t1.d else t1.b end<t1.f)}
+} {}
+do_test randexpr-2.1837 {
+  db eval {SELECT case when not exists(select 1 from t1 where not exists(select 1 from t1 where (case when (abs(a)/abs(t1.f))<a then t1.a when t1.b not in (11,t1.f,(c+d*t1.d)+t1.b+d-t1.a+e) then e else e end<=d))) then (select ~max(13) from t1) when 13 not between coalesce((select max(t1.a) from t1 where not exists(select 1 from t1 where 13>=t1.b)),((d))) and t1.c then 19 else 13 end FROM t1 WHERE d*a in (case when 19>t1.e then c | (select +~count(distinct t1.b)-++abs(min(11)+ -~min(t1.b)+ -(max(t1.d))-min(t1.b)-count(distinct t1.f)) | max(f) from t1) else a+t1.c end,t1.a+case 19 when (11*a)*t1.c then d else a end*t1.a-d,f)}
+} {}
+do_test randexpr-2.1838 {
+  db eval {SELECT case when not exists(select 1 from t1 where not exists(select 1 from t1 where (case when (abs(a)/abs(t1.f))<a then t1.a when t1.b not in (11,t1.f,(c+d*t1.d)+t1.b+d-t1.a+e) then e else e end<=d))) then (select ~max(13) from t1) when 13 not between coalesce((select max(t1.a) from t1 where not exists(select 1 from t1 where 13>=t1.b)),((d))) and t1.c then 19 else 13 end FROM t1 WHERE NOT (d*a in (case when 19>t1.e then c | (select +~count(distinct t1.b)-++abs(min(11)+ -~min(t1.b)+ -(max(t1.d))-min(t1.b)-count(distinct t1.f)) | max(f) from t1) else a+t1.c end,t1.a+case 19 when (11*a)*t1.c then d else a end*t1.a-d,f))}
+} {-14}
+do_test randexpr-2.1839 {
+  db eval {SELECT case when b<= -coalesce((select max(t1.b+t1.c+a*a-t1.c-e) from t1 where not 11>e or c<=17 and b<=b), -t1.d)+13 and 17 not between a and c and not exists(select 1 from t1 where f not between t1.d and t1.e and t1.d between 13 and  -t1.a) then t1.b when e not in (a,t1.f, -t1.d) then t1.c else e end FROM t1 WHERE not coalesce((select max((c)) from t1 where d* -coalesce((select max(coalesce((select t1.d from t1 where (d<=d)),d)) from t1 where (abs(case 11 when (select  -+count(distinct 13)*min(c) | count(*) from t1) then 11 else case when (19 between (19) and 17 or t1.c in (c,19,d)) then c when  -t1.e>=c then c else c end end*11)/abs((13))) not in (17, -t1.e, -t1.e)),t1.e)=17),t1.c) between 13 and t1.f}
+} {}
+do_test randexpr-2.1840 {
+  db eval {SELECT case when b<= -coalesce((select max(t1.b+t1.c+a*a-t1.c-e) from t1 where not 11>e or c<=17 and b<=b), -t1.d)+13 and 17 not between a and c and not exists(select 1 from t1 where f not between t1.d and t1.e and t1.d between 13 and  -t1.a) then t1.b when e not in (a,t1.f, -t1.d) then t1.c else e end FROM t1 WHERE NOT (not coalesce((select max((c)) from t1 where d* -coalesce((select max(coalesce((select t1.d from t1 where (d<=d)),d)) from t1 where (abs(case 11 when (select  -+count(distinct 13)*min(c) | count(*) from t1) then 11 else case when (19 between (19) and 17 or t1.c in (c,19,d)) then c when  -t1.e>=c then c else c end end*11)/abs((13))) not in (17, -t1.e, -t1.e)),t1.e)=17),t1.c) between 13 and t1.f)}
+} {300}
+do_test randexpr-2.1841 {
+  db eval {SELECT 17 |  -(case when (a) not between 11 and case (abs(~(abs(13-case (abs(17)/abs(19+e | t1.e)) when (t1.d) then  -(t1.c) else t1.f end+t1.f*t1.c)/abs(a)))/abs(17)) when 19 then d else t1.d end then 17 when not exists(select 1 from t1 where t1.e not in (t1.b,t1.b,b) or a between a and 17) then 11 else b end) | t1.e FROM t1 WHERE 17>=e}
+} {}
+do_test randexpr-2.1842 {
+  db eval {SELECT 17 |  -(case when (a) not between 11 and case (abs(~(abs(13-case (abs(17)/abs(19+e | t1.e)) when (t1.d) then  -(t1.c) else t1.f end+t1.f*t1.c)/abs(a)))/abs(17)) when 19 then d else t1.d end then 17 when not exists(select 1 from t1 where t1.e not in (t1.b,t1.b,b) or a between a and 17) then 11 else b end) | t1.e FROM t1 WHERE NOT (17>=e)}
+} {-3}
+do_test randexpr-2.1843 {
+  db eval {SELECT 17 &  -(case when (a) not between 11 and case (abs(~(abs(13-case (abs(17)/abs(19+e & t1.e)) when (t1.d) then  -(t1.c) else t1.f end+t1.f*t1.c)/abs(a)))/abs(17)) when 19 then d else t1.d end then 17 when not exists(select 1 from t1 where t1.e not in (t1.b,t1.b,b) or a between a and 17) then 11 else b end) & t1.e FROM t1 WHERE NOT (17>=e)}
+} {16}
+do_test randexpr-2.1844 {
+  db eval {SELECT (abs(11 | t1.e)/abs(case 13 when 17*+t1.a+d*+d then ~ -17*+ - -case f when b then a-b else t1.d end-f+t1.f+17 else t1.a end)) FROM t1 WHERE t1.f<>17}
+} {5}
+do_test randexpr-2.1845 {
+  db eval {SELECT (abs(11 | t1.e)/abs(case 13 when 17*+t1.a+d*+d then ~ -17*+ - -case f when b then a-b else t1.d end-f+t1.f+17 else t1.a end)) FROM t1 WHERE NOT (t1.f<>17)}
+} {}
+do_test randexpr-2.1846 {
+  db eval {SELECT (abs(11 & t1.e)/abs(case 13 when 17*+t1.a+d*+d then ~ -17*+ - -case f when b then a-b else t1.d end-f+t1.f+17 else t1.a end)) FROM t1 WHERE t1.f<>17}
+} {0}
+do_test randexpr-2.1847 {
+  db eval {SELECT case when not coalesce((select max(case 11 when case d when coalesce((select f from t1 where case when (t1.d) | case 11 when t1.d then 11 else (t1.a) end | t1.b in (e,c,(11)) then 17 when c between e and f then t1.e else t1.a end>t1.e),t1.d) then 13 else c end then c else c end) from t1 where t1.e not between (a) and (t1.d)),c) not in ((11),((19)),a) then (t1.c) else (c) end FROM t1 WHERE t1.d-t1.c>=13}
+} {300}
+do_test randexpr-2.1848 {
+  db eval {SELECT case when not coalesce((select max(case 11 when case d when coalesce((select f from t1 where case when (t1.d) | case 11 when t1.d then 11 else (t1.a) end | t1.b in (e,c,(11)) then 17 when c between e and f then t1.e else t1.a end>t1.e),t1.d) then 13 else c end then c else c end) from t1 where t1.e not between (a) and (t1.d)),c) not in ((11),((19)),a) then (t1.c) else (c) end FROM t1 WHERE NOT (t1.d-t1.c>=13)}
+} {}
+do_test randexpr-2.1849 {
+  db eval {SELECT case when not coalesce((select max(case 11 when case d when coalesce((select f from t1 where case when (t1.d) & case 11 when t1.d then 11 else (t1.a) end & t1.b in (e,c,(11)) then 17 when c between e and f then t1.e else t1.a end>t1.e),t1.d) then 13 else c end then c else c end) from t1 where t1.e not between (a) and (t1.d)),c) not in ((11),((19)),a) then (t1.c) else (c) end FROM t1 WHERE t1.d-t1.c>=13}
+} {300}
+do_test randexpr-2.1850 {
+  db eval {SELECT (select case count(distinct ~case when (abs(coalesce((select t1.e from t1 where (not exists(select 1 from t1 where a | e between c and coalesce((select (t1.d) from t1 where (t1.a=t1.a)), -(c))))),b+19))/abs(d))>11 then b else t1.d end) when count(distinct 17) then ~min((t1.d))-case  -(case  -cast(avg(t1.b) AS integer) when  -max(13) then (min(t1.d)) else count(distinct t1.b) end+(min(t1.e)))*(cast(avg( -17) AS integer)) when  -count(distinct 19) then count(*) else max(t1.c) end else count(distinct f) end from t1) FROM t1 WHERE t1.e=t1.d}
+} {}
+do_test randexpr-2.1851 {
+  db eval {SELECT (select case count(distinct ~case when (abs(coalesce((select t1.e from t1 where (not exists(select 1 from t1 where a | e between c and coalesce((select (t1.d) from t1 where (t1.a=t1.a)), -(c))))),b+19))/abs(d))>11 then b else t1.d end) when count(distinct 17) then ~min((t1.d))-case  -(case  -cast(avg(t1.b) AS integer) when  -max(13) then (min(t1.d)) else count(distinct t1.b) end+(min(t1.e)))*(cast(avg( -17) AS integer)) when  -count(distinct 19) then count(*) else max(t1.c) end else count(distinct f) end from t1) FROM t1 WHERE NOT (t1.e=t1.d)}
+} {-701}
+do_test randexpr-2.1852 {
+  db eval {SELECT (select case count(distinct ~case when (abs(coalesce((select t1.e from t1 where (not exists(select 1 from t1 where a & e between c and coalesce((select (t1.d) from t1 where (t1.a=t1.a)), -(c))))),b+19))/abs(d))>11 then b else t1.d end) when count(distinct 17) then ~min((t1.d))-case  -(case  -cast(avg(t1.b) AS integer) when  -max(13) then (min(t1.d)) else count(distinct t1.b) end+(min(t1.e)))*(cast(avg( -17) AS integer)) when  -count(distinct 19) then count(*) else max(t1.c) end else count(distinct f) end from t1) FROM t1 WHERE NOT (t1.e=t1.d)}
+} {-701}
+do_test randexpr-2.1853 {
+  db eval {SELECT case when t1.d<>t1.a and a-t1.b-c in (13,t1.e-(abs(d)/abs(coalesce((select max(e) from t1 where 19 not between  -b and 17),b))),t1.b) or (not exists(select 1 from t1 where t1.f not between  -17 and a)) then case when e>t1.e then t1.d when t1.c<d or (19<=13) then (13) else b end+t1.e when c<=a then t1.d else f end+17 FROM t1 WHERE (t1.d)-case when not exists(select 1 from t1 where c<>f-11 and not not b<coalesce((select max(a) from t1 where (select cast(avg(case t1.a*19 when (select abs(cast(avg(c) AS integer)+(count(*))) from t1) | t1.f+11* -b then ((e)) else t1.a end) AS integer) from t1)-t1.f in (a,a,e)),19)) then 13*e else t1.b end not between 13 and t1.c}
+} {617}
+do_test randexpr-2.1854 {
+  db eval {SELECT case when t1.d<>t1.a and a-t1.b-c in (13,t1.e-(abs(d)/abs(coalesce((select max(e) from t1 where 19 not between  -b and 17),b))),t1.b) or (not exists(select 1 from t1 where t1.f not between  -17 and a)) then case when e>t1.e then t1.d when t1.c<d or (19<=13) then (13) else b end+t1.e when c<=a then t1.d else f end+17 FROM t1 WHERE NOT ((t1.d)-case when not exists(select 1 from t1 where c<>f-11 and not not b<coalesce((select max(a) from t1 where (select cast(avg(case t1.a*19 when (select abs(cast(avg(c) AS integer)+(count(*))) from t1) | t1.f+11* -b then ((e)) else t1.a end) AS integer) from t1)-t1.f in (a,a,e)),19)) then 13*e else t1.b end not between 13 and t1.c)}
+} {}
+do_test randexpr-2.1855 {
+  db eval {SELECT ~case 17 when t1.c then coalesce((select max((case when not exists(select 1 from t1 where 11<>coalesce((select d from t1 where not exists(select 1 from t1 where c*b in (t1.b*t1.d,t1.c,b) or c between d and a)),19)-t1.c*e) then coalesce((select f from t1 where 11 in (select c from t1 union select b from t1)),(c)) when 17<>t1.b then d else 19 end)) from t1 where f in (a,t1.f,t1.d)),(19)) else t1.e end FROM t1 WHERE not not exists(select 1 from t1 where (select abs(min(19-19))*count(*) | min(13)*min((a))+cast(avg(t1.e) AS integer)+(cast(avg(19) AS integer)) from t1) in (17,+(select min(b) from t1),(select cast(avg(f) AS integer) from t1)) and 11 in (select ( -(min(c))) from t1 union select (min(13)) from t1)) or t1.d between c and  -(f) or not t1.c in (select min(e) from t1 union select  -(max(e)) from t1) and t1.e in (t1.f,a,11) and f not between a and 17 and 19<=17 and 13 not in (b,t1.b,13)}
+} {}
+do_test randexpr-2.1856 {
+  db eval {SELECT ~case 17 when t1.c then coalesce((select max((case when not exists(select 1 from t1 where 11<>coalesce((select d from t1 where not exists(select 1 from t1 where c*b in (t1.b*t1.d,t1.c,b) or c between d and a)),19)-t1.c*e) then coalesce((select f from t1 where 11 in (select c from t1 union select b from t1)),(c)) when 17<>t1.b then d else 19 end)) from t1 where f in (a,t1.f,t1.d)),(19)) else t1.e end FROM t1 WHERE NOT (not not exists(select 1 from t1 where (select abs(min(19-19))*count(*) | min(13)*min((a))+cast(avg(t1.e) AS integer)+(cast(avg(19) AS integer)) from t1) in (17,+(select min(b) from t1),(select cast(avg(f) AS integer) from t1)) and 11 in (select ( -(min(c))) from t1 union select (min(13)) from t1)) or t1.d between c and  -(f) or not t1.c in (select min(e) from t1 union select  -(max(e)) from t1) and t1.e in (t1.f,a,11) and f not between a and 17 and 19<=17 and 13 not in (b,t1.b,13))}
+} {-501}
+do_test randexpr-2.1857 {
+  db eval {SELECT coalesce((select +f+coalesce((select case when b- -f*t1.d-t1.a>d and t1.e in (select b from t1 union select t1.d from t1) then 11 else  -a end from t1 where (not (t1.f) not between 13 and t1.f)),11) from t1 where t1.c<=c and (d) between 11 and t1.b or b in (select d from t1 union select t1.e from t1) and 19<>t1.e or 19 not between a and a),19) FROM t1 WHERE t1.e<>(select cast(avg((b)*(select abs( -max(t1.f)) from t1)) AS integer) from t1)}
+} {500}
+do_test randexpr-2.1858 {
+  db eval {SELECT coalesce((select +f+coalesce((select case when b- -f*t1.d-t1.a>d and t1.e in (select b from t1 union select t1.d from t1) then 11 else  -a end from t1 where (not (t1.f) not between 13 and t1.f)),11) from t1 where t1.c<=c and (d) between 11 and t1.b or b in (select d from t1 union select t1.e from t1) and 19<>t1.e or 19 not between a and a),19) FROM t1 WHERE NOT (t1.e<>(select cast(avg((b)*(select abs( -max(t1.f)) from t1)) AS integer) from t1))}
+} {}
+do_test randexpr-2.1859 {
+  db eval {SELECT coalesce((select max(coalesce((select (t1.f) from t1 where f in (select t1.f+(select case count(distinct 19) when count(*) then max(t1.d) else  -count(*) end from t1) from t1 union select 13 from t1)),c)) from t1 where not exists(select 1 from t1 where coalesce((select (select +count(*) | ~(~ -count(distinct  -13)) from t1) from t1 where case when d*~f-13<>((d)) then 19 else t1.a end not between d and t1.e),t1.f) | t1.d in (select t1.d from t1 union select t1.d from t1))),13) FROM t1 WHERE b= -~case f-t1.a | ~case coalesce((select max(t1.b) from t1 where b>t1.e or t1.d=17-(abs(coalesce((select 17 from t1 where 17 between c and c),a)-c+a)/abs(t1.f))-c and d not in (17,19,c)),c) when 11 then e else t1.d end | t1.c-d when t1.c then c else e end | a}
+} {}
+do_test randexpr-2.1860 {
+  db eval {SELECT coalesce((select max(coalesce((select (t1.f) from t1 where f in (select t1.f+(select case count(distinct 19) when count(*) then max(t1.d) else  -count(*) end from t1) from t1 union select 13 from t1)),c)) from t1 where not exists(select 1 from t1 where coalesce((select (select +count(*) | ~(~ -count(distinct  -13)) from t1) from t1 where case when d*~f-13<>((d)) then 19 else t1.a end not between d and t1.e),t1.f) | t1.d in (select t1.d from t1 union select t1.d from t1))),13) FROM t1 WHERE NOT (b= -~case f-t1.a | ~case coalesce((select max(t1.b) from t1 where b>t1.e or t1.d=17-(abs(coalesce((select 17 from t1 where 17 between c and c),a)-c+a)/abs(t1.f))-c and d not in (17,19,c)),c) when 11 then e else t1.d end | t1.c-d when t1.c then c else e end | a)}
+} {300}
+do_test randexpr-2.1861 {
+  db eval {SELECT coalesce((select max(coalesce((select (t1.f) from t1 where f in (select t1.f+(select case count(distinct 19) when count(*) then max(t1.d) else  -count(*) end from t1) from t1 union select 13 from t1)),c)) from t1 where not exists(select 1 from t1 where coalesce((select (select +count(*) & ~(~ -count(distinct  -13)) from t1) from t1 where case when d*~f-13<>((d)) then 19 else t1.a end not between d and t1.e),t1.f) & t1.d in (select t1.d from t1 union select t1.d from t1))),13) FROM t1 WHERE NOT (b= -~case f-t1.a | ~case coalesce((select max(t1.b) from t1 where b>t1.e or t1.d=17-(abs(coalesce((select 17 from t1 where 17 between c and c),a)-c+a)/abs(t1.f))-c and d not in (17,19,c)),c) when 11 then e else t1.d end | t1.c-d when t1.c then c else e end | a)}
+} {300}
+do_test randexpr-2.1862 {
+  db eval {SELECT coalesce((select max(( -17-case when t1.c-13<+11 | (t1.a)-e then 13*t1.a when coalesce((select 11 from t1 where t1.a>t1.c),17)+f+t1.a not between 13 and e then t1.f else c end)) from t1 where exists(select 1 from t1 where (19>=t1.f)) and f in (select max(13) from t1 union select count(*) from t1) and (19)>=t1.f),d) FROM t1 WHERE t1.f in (select 19 from t1 union select  -17*11+t1.d from t1)}
+} {}
+do_test randexpr-2.1863 {
+  db eval {SELECT coalesce((select max(( -17-case when t1.c-13<+11 | (t1.a)-e then 13*t1.a when coalesce((select 11 from t1 where t1.a>t1.c),17)+f+t1.a not between 13 and e then t1.f else c end)) from t1 where exists(select 1 from t1 where (19>=t1.f)) and f in (select max(13) from t1 union select count(*) from t1) and (19)>=t1.f),d) FROM t1 WHERE NOT (t1.f in (select 19 from t1 union select  -17*11+t1.d from t1))}
+} {400}
+do_test randexpr-2.1864 {
+  db eval {SELECT coalesce((select max(( -17-case when t1.c-13<+11 & (t1.a)-e then 13*t1.a when coalesce((select 11 from t1 where t1.a>t1.c),17)+f+t1.a not between 13 and e then t1.f else c end)) from t1 where exists(select 1 from t1 where (19>=t1.f)) and f in (select max(13) from t1 union select count(*) from t1) and (19)>=t1.f),d) FROM t1 WHERE NOT (t1.f in (select 19 from t1 union select  -17*11+t1.d from t1))}
+} {400}
+do_test randexpr-2.1865 {
+  db eval {SELECT (t1.a)+c*case when not b in (select 11 from t1 union select 13 from t1) and a=case when not exists(select 1 from t1 where exists(select 1 from t1 where ~+( -(17)) | t1.d>=b)) then case t1.d when c then 19 else t1.c end*a else d end-a then e when b not between f and d and t1.b>=11 or not (t1.e>=b) and 11<=17 then 13 else t1.d end FROM t1 WHERE b in (e | 19,t1.c,case 17 when 19 then +(case when 19> -coalesce((select max(a) from t1 where t1.a not in (case e when t1.d then (c)-c else 11 end | (11)-c*t1.f,e,t1.f)),13) then t1.e else t1.e end)*e else 13 end-19+ - -t1.d* -b) or  -t1.e>b}
+} {}
+do_test randexpr-2.1866 {
+  db eval {SELECT (t1.a)+c*case when not b in (select 11 from t1 union select 13 from t1) and a=case when not exists(select 1 from t1 where exists(select 1 from t1 where ~+( -(17)) | t1.d>=b)) then case t1.d when c then 19 else t1.c end*a else d end-a then e when b not between f and d and t1.b>=11 or not (t1.e>=b) and 11<=17 then 13 else t1.d end FROM t1 WHERE NOT (b in (e | 19,t1.c,case 17 when 19 then +(case when 19> -coalesce((select max(a) from t1 where t1.a not in (case e when t1.d then (c)-c else 11 end | (11)-c*t1.f,e,t1.f)),13) then t1.e else t1.e end)*e else 13 end-19+ - -t1.d* -b) or  -t1.e>b)}
+} {4000}
+do_test randexpr-2.1867 {
+  db eval {SELECT (t1.a)+c*case when not b in (select 11 from t1 union select 13 from t1) and a=case when not exists(select 1 from t1 where exists(select 1 from t1 where ~+( -(17)) & t1.d>=b)) then case t1.d when c then 19 else t1.c end*a else d end-a then e when b not between f and d and t1.b>=11 or not (t1.e>=b) and 11<=17 then 13 else t1.d end FROM t1 WHERE NOT (b in (e | 19,t1.c,case 17 when 19 then +(case when 19> -coalesce((select max(a) from t1 where t1.a not in (case e when t1.d then (c)-c else 11 end | (11)-c*t1.f,e,t1.f)),13) then t1.e else t1.e end)*e else 13 end-19+ - -t1.d* -b) or  -t1.e>b)}
+} {4000}
+do_test randexpr-2.1868 {
+  db eval {SELECT case when b | case when 13 between ~coalesce((select 19 from t1 where b in (select max(a*17) from t1 union select cast(avg( -19) AS integer)+abs(cast(avg(a) AS integer)) from t1)),17) and 11 then a when not exists(select 1 from t1 where not exists(select 1 from t1 where 19<=e)) and d in (select 17 from t1 union select 17 from t1) then  -b else a end-a in (select max(t1.c) from t1 union select min(e) | count(*)+count(*) from t1) then t1.b when not (not 19<=t1.b) then 13 else a end-b FROM t1 WHERE +~+13>=t1.c}
+} {}
+do_test randexpr-2.1869 {
+  db eval {SELECT case when b | case when 13 between ~coalesce((select 19 from t1 where b in (select max(a*17) from t1 union select cast(avg( -19) AS integer)+abs(cast(avg(a) AS integer)) from t1)),17) and 11 then a when not exists(select 1 from t1 where not exists(select 1 from t1 where 19<=e)) and d in (select 17 from t1 union select 17 from t1) then  -b else a end-a in (select max(t1.c) from t1 union select min(e) | count(*)+count(*) from t1) then t1.b when not (not 19<=t1.b) then 13 else a end-b FROM t1 WHERE NOT (+~+13>=t1.c)}
+} {-187}
+do_test randexpr-2.1870 {
+  db eval {SELECT case when b & case when 13 between ~coalesce((select 19 from t1 where b in (select max(a*17) from t1 union select cast(avg( -19) AS integer)+abs(cast(avg(a) AS integer)) from t1)),17) and 11 then a when not exists(select 1 from t1 where not exists(select 1 from t1 where 19<=e)) and d in (select 17 from t1 union select 17 from t1) then  -b else a end-a in (select max(t1.c) from t1 union select min(e) & count(*)+count(*) from t1) then t1.b when not (not 19<=t1.b) then 13 else a end-b FROM t1 WHERE NOT (+~+13>=t1.c)}
+} {0}
+do_test randexpr-2.1871 {
+  db eval {SELECT coalesce((select case when t1.d in (select min(f) from t1 union select ~ -count(*) from t1) then d else 13 end from t1 where 19<=case when 13>=+17-c+(select count(*)-min(11) from t1)+t1.f*t1.e*c*t1.d then c else t1.b end),t1.c | +t1.e) FROM t1 WHERE a between (abs(coalesce((select max(case when (t1.d+a*coalesce((select d-13 from t1 where a<=19),t1.f))>= -c then c else 13 end) from t1 where f>=d or t1.a>t1.d),t1.a))/abs(t1.f)) and 19 and 13=t1.e and not exists(select 1 from t1 where 13 in (select  -( -count(distinct (a))) |  -cast(avg(t1.c) AS integer) from t1 union select (min(t1.c)) from t1) or t1.f not between t1.c and t1.c)}
+} {}
+do_test randexpr-2.1872 {
+  db eval {SELECT coalesce((select case when t1.d in (select min(f) from t1 union select ~ -count(*) from t1) then d else 13 end from t1 where 19<=case when 13>=+17-c+(select count(*)-min(11) from t1)+t1.f*t1.e*c*t1.d then c else t1.b end),t1.c | +t1.e) FROM t1 WHERE NOT (a between (abs(coalesce((select max(case when (t1.d+a*coalesce((select d-13 from t1 where a<=19),t1.f))>= -c then c else 13 end) from t1 where f>=d or t1.a>t1.d),t1.a))/abs(t1.f)) and 19 and 13=t1.e and not exists(select 1 from t1 where 13 in (select  -( -count(distinct (a))) |  -cast(avg(t1.c) AS integer) from t1 union select (min(t1.c)) from t1) or t1.f not between t1.c and t1.c))}
+} {13}
+do_test randexpr-2.1873 {
+  db eval {SELECT coalesce((select case when t1.d in (select min(f) from t1 union select ~ -count(*) from t1) then d else 13 end from t1 where 19<=case when 13>=+17-c+(select count(*)-min(11) from t1)+t1.f*t1.e*c*t1.d then c else t1.b end),t1.c & +t1.e) FROM t1 WHERE NOT (a between (abs(coalesce((select max(case when (t1.d+a*coalesce((select d-13 from t1 where a<=19),t1.f))>= -c then c else 13 end) from t1 where f>=d or t1.a>t1.d),t1.a))/abs(t1.f)) and 19 and 13=t1.e and not exists(select 1 from t1 where 13 in (select  -( -count(distinct (a))) |  -cast(avg(t1.c) AS integer) from t1 union select (min(t1.c)) from t1) or t1.f not between t1.c and t1.c))}
+} {13}
+do_test randexpr-2.1874 {
+  db eval {SELECT coalesce((select max(f) from t1 where coalesce((select max(+(select cast(avg(t1.d) AS integer) from t1)*19) from t1 where (abs(t1.d*t1.c)/abs(f))+t1.e> -t1.d*t1.e-a),13-case +coalesce((select max(t1.c) from t1 where d<=d and  - -t1.a<=(t1.f) or f<>19 and 17<19),(t1.c)) | c*t1.f*b when t1.a then 19 else (b) end)>=a),t1.f) FROM t1 WHERE (~c-13*case when case when a+19-c in (select case count(distinct c)-case cast(avg(t1.a) AS integer) when max( -b) then cast(avg(t1.f) AS integer) else cast(avg((t1.d)) AS integer) end when min(b) then cast(avg(b) AS integer) else count(*) end from t1 union select max(t1.f) from t1) and 17 between (t1.b) and c and 19>t1.d or 19 in (t1.f,t1.a,(b)) then a else t1.e end in (13,t1.a,b) then 17 else t1.e end*t1.d+a+t1.b+t1.f)<t1.d}
+} {600}
+do_test randexpr-2.1875 {
+  db eval {SELECT coalesce((select max(f) from t1 where coalesce((select max(+(select cast(avg(t1.d) AS integer) from t1)*19) from t1 where (abs(t1.d*t1.c)/abs(f))+t1.e> -t1.d*t1.e-a),13-case +coalesce((select max(t1.c) from t1 where d<=d and  - -t1.a<=(t1.f) or f<>19 and 17<19),(t1.c)) | c*t1.f*b when t1.a then 19 else (b) end)>=a),t1.f) FROM t1 WHERE NOT ((~c-13*case when case when a+19-c in (select case count(distinct c)-case cast(avg(t1.a) AS integer) when max( -b) then cast(avg(t1.f) AS integer) else cast(avg((t1.d)) AS integer) end when min(b) then cast(avg(b) AS integer) else count(*) end from t1 union select max(t1.f) from t1) and 17 between (t1.b) and c and 19>t1.d or 19 in (t1.f,t1.a,(b)) then a else t1.e end in (13,t1.a,b) then 17 else t1.e end*t1.d+a+t1.b+t1.f)<t1.d)}
+} {}
+do_test randexpr-2.1876 {
+  db eval {SELECT coalesce((select max(f) from t1 where coalesce((select max(+(select cast(avg(t1.d) AS integer) from t1)*19) from t1 where (abs(t1.d*t1.c)/abs(f))+t1.e> -t1.d*t1.e-a),13-case +coalesce((select max(t1.c) from t1 where d<=d and  - -t1.a<=(t1.f) or f<>19 and 17<19),(t1.c)) & c*t1.f*b when t1.a then 19 else (b) end)>=a),t1.f) FROM t1 WHERE (~c-13*case when case when a+19-c in (select case count(distinct c)-case cast(avg(t1.a) AS integer) when max( -b) then cast(avg(t1.f) AS integer) else cast(avg((t1.d)) AS integer) end when min(b) then cast(avg(b) AS integer) else count(*) end from t1 union select max(t1.f) from t1) and 17 between (t1.b) and c and 19>t1.d or 19 in (t1.f,t1.a,(b)) then a else t1.e end in (13,t1.a,b) then 17 else t1.e end*t1.d+a+t1.b+t1.f)<t1.d}
+} {600}
+do_test randexpr-2.1877 {
+  db eval {SELECT a | t1.c-case t1.b when case when f< -(c*case when f<13 then t1.e | 13-coalesce((select max( -13+13+t1.a) from t1 where not exists(select 1 from t1 where 17=11)),19) else a end+t1.e*t1.d)+11+(13) then t1.f when not t1.f> -b then a else f end then t1.e else f end FROM t1 WHERE t1.f-~coalesce((select 17 from t1 where (e+ -case when (d<coalesce((select max(a) from t1 where a | a<t1.a and t1.c<=17 or t1.d not between a and b),13)) then 17*t1.d else t1.f end in (select ~~~cast(avg(f) AS integer)*max(t1.c)-count(distinct t1.e)-( -min(t1.f))+( -count(*)) from t1 union select max(a) from t1))),13)*t1.c-t1.d not between 17 and d}
+} {-268}
+do_test randexpr-2.1878 {
+  db eval {SELECT a | t1.c-case t1.b when case when f< -(c*case when f<13 then t1.e | 13-coalesce((select max( -13+13+t1.a) from t1 where not exists(select 1 from t1 where 17=11)),19) else a end+t1.e*t1.d)+11+(13) then t1.f when not t1.f> -b then a else f end then t1.e else f end FROM t1 WHERE NOT (t1.f-~coalesce((select 17 from t1 where (e+ -case when (d<coalesce((select max(a) from t1 where a | a<t1.a and t1.c<=17 or t1.d not between a and b),13)) then 17*t1.d else t1.f end in (select ~~~cast(avg(f) AS integer)*max(t1.c)-count(distinct t1.e)-( -min(t1.f))+( -count(*)) from t1 union select max(a) from t1))),13)*t1.c-t1.d not between 17 and d)}
+} {}
+do_test randexpr-2.1879 {
+  db eval {SELECT a & t1.c-case t1.b when case when f< -(c*case when f<13 then t1.e & 13-coalesce((select max( -13+13+t1.a) from t1 where not exists(select 1 from t1 where 17=11)),19) else a end+t1.e*t1.d)+11+(13) then t1.f when not t1.f> -b then a else f end then t1.e else f end FROM t1 WHERE t1.f-~coalesce((select 17 from t1 where (e+ -case when (d<coalesce((select max(a) from t1 where a | a<t1.a and t1.c<=17 or t1.d not between a and b),13)) then 17*t1.d else t1.f end in (select ~~~cast(avg(f) AS integer)*max(t1.c)-count(distinct t1.e)-( -min(t1.f))+( -count(*)) from t1 union select max(a) from t1))),13)*t1.c-t1.d not between 17 and d}
+} {68}
+do_test randexpr-2.1880 {
+  db eval {SELECT  -(17-case (select max(a)+min( -(abs(t1.c-t1.a | t1.e- -t1.b+19*t1.c)/abs(c)))+ -case min(a) when count(distinct  -a) then count(distinct 19) else count(*) end-count(distinct t1.e)*(max(t1.a))-(count(distinct 19)) from t1) when (select count(*) from t1) then b else t1.d end*11)-11* -c FROM t1 WHERE f between (case case when +(f) in (select t1.f from t1 union select case when t1.b in ((abs(19)/abs(11)),f,c) and (d) in (select  -count(distinct b)*count(*) from t1 union select count(distinct  -13) from t1) or (t1.e>19) then case when f in (11,11,d) then t1.e when t1.a<=19 then a else e end else  -t1.e end from t1) then e when t1.c=t1.b then 19 else e end when f then 19 else c end) | d-c and a}
+} {}
+do_test randexpr-2.1881 {
+  db eval {SELECT  -(17-case (select max(a)+min( -(abs(t1.c-t1.a | t1.e- -t1.b+19*t1.c)/abs(c)))+ -case min(a) when count(distinct  -a) then count(distinct 19) else count(*) end-count(distinct t1.e)*(max(t1.a))-(count(distinct 19)) from t1) when (select count(*) from t1) then b else t1.d end*11)-11* -c FROM t1 WHERE NOT (f between (case case when +(f) in (select t1.f from t1 union select case when t1.b in ((abs(19)/abs(11)),f,c) and (d) in (select  -count(distinct b)*count(*) from t1 union select count(distinct  -13) from t1) or (t1.e>19) then case when f in (11,11,d) then t1.e when t1.a<=19 then a else e end else  -t1.e end from t1) then e when t1.c=t1.b then 19 else e end when f then 19 else c end) | d-c and a)}
+} {7683}
+do_test randexpr-2.1882 {
+  db eval {SELECT  -(17-case (select max(a)+min( -(abs(t1.c-t1.a & t1.e- -t1.b+19*t1.c)/abs(c)))+ -case min(a) when count(distinct  -a) then count(distinct 19) else count(*) end-count(distinct t1.e)*(max(t1.a))-(count(distinct 19)) from t1) when (select count(*) from t1) then b else t1.d end*11)-11* -c FROM t1 WHERE NOT (f between (case case when +(f) in (select t1.f from t1 union select case when t1.b in ((abs(19)/abs(11)),f,c) and (d) in (select  -count(distinct b)*count(*) from t1 union select count(distinct  -13) from t1) or (t1.e>19) then case when f in (11,11,d) then t1.e when t1.a<=19 then a else e end else  -t1.e end from t1) then e when t1.c=t1.b then 19 else e end when f then 19 else c end) | d-c and a)}
+} {7683}
+do_test randexpr-2.1883 {
+  db eval {SELECT (case coalesce((select +a from t1 where exists(select 1 from t1 where t1.e not between t1.f-b and (select count(*) from t1)-t1.f | e)),t1.d+case when t1.b not between t1.d and 17+case when a in (t1.d,a,(abs(~case when (t1.f)<=t1.c then  -17 else t1.f end)/abs(19))*d*t1.d) then (b) else a end then 11 else f end+(t1.a)) when f then 17 else t1.e end) FROM t1 WHERE a-e*case t1.d+case c when (abs(~t1.d*(select min(case when not exists(select 1 from t1 where ((d)+(19) between 11 and 19)) then 11+13 when e not in (t1.f,17,e) and t1.c<>a then t1.e else 19 end*t1.a-f) from t1))/abs(b)) then 13 else 17 end when t1.f then (f) else t1.c end<b and 19 between t1.a and t1.a or d<f}
+} {500}
+do_test randexpr-2.1884 {
+  db eval {SELECT (case coalesce((select +a from t1 where exists(select 1 from t1 where t1.e not between t1.f-b and (select count(*) from t1)-t1.f | e)),t1.d+case when t1.b not between t1.d and 17+case when a in (t1.d,a,(abs(~case when (t1.f)<=t1.c then  -17 else t1.f end)/abs(19))*d*t1.d) then (b) else a end then 11 else f end+(t1.a)) when f then 17 else t1.e end) FROM t1 WHERE NOT (a-e*case t1.d+case c when (abs(~t1.d*(select min(case when not exists(select 1 from t1 where ((d)+(19) between 11 and 19)) then 11+13 when e not in (t1.f,17,e) and t1.c<>a then t1.e else 19 end*t1.a-f) from t1))/abs(b)) then 13 else 17 end when t1.f then (f) else t1.c end<b and 19 between t1.a and t1.a or d<f)}
+} {}
+do_test randexpr-2.1885 {
+  db eval {SELECT (case coalesce((select +a from t1 where exists(select 1 from t1 where t1.e not between t1.f-b and (select count(*) from t1)-t1.f & e)),t1.d+case when t1.b not between t1.d and 17+case when a in (t1.d,a,(abs(~case when (t1.f)<=t1.c then  -17 else t1.f end)/abs(19))*d*t1.d) then (b) else a end then 11 else f end+(t1.a)) when f then 17 else t1.e end) FROM t1 WHERE a-e*case t1.d+case c when (abs(~t1.d*(select min(case when not exists(select 1 from t1 where ((d)+(19) between 11 and 19)) then 11+13 when e not in (t1.f,17,e) and t1.c<>a then t1.e else 19 end*t1.a-f) from t1))/abs(b)) then 13 else 17 end when t1.f then (f) else t1.c end<b and 19 between t1.a and t1.a or d<f}
+} {500}
+do_test randexpr-2.1886 {
+  db eval {SELECT  -19 | t1.c*coalesce((select max(+(select cast(avg(case when  -e+t1.d in (select t1.e*a from t1 union select a from t1) then t1.b when 17 in (select t1.a from t1 union select 11 from t1) then 19 else 11 end-19+a+t1.f) AS integer)+count(distinct t1.a) from t1)+(t1.b)) from t1 where (19) not in (17,d,a)),t1.a)*t1.b*19* -11 FROM t1 WHERE case t1.e when f then (select ~count(distinct a) | abs((count(distinct d*f+d+t1.b+17+~t1.f))) from t1) else coalesce((select e from t1 where t1.f not between 17+t1.f+19 and (abs(f)/abs(t1.f))*~t1.b*(b)),coalesce((select t1.b from t1 where 19 in (select count(distinct (t1.d)) from t1 union select  -count(distinct a) from t1)),19)) | 17 end not between t1.c and t1.c}
+} {-19}
+do_test randexpr-2.1887 {
+  db eval {SELECT  -19 | t1.c*coalesce((select max(+(select cast(avg(case when  -e+t1.d in (select t1.e*a from t1 union select a from t1) then t1.b when 17 in (select t1.a from t1 union select 11 from t1) then 19 else 11 end-19+a+t1.f) AS integer)+count(distinct t1.a) from t1)+(t1.b)) from t1 where (19) not in (17,d,a)),t1.a)*t1.b*19* -11 FROM t1 WHERE NOT (case t1.e when f then (select ~count(distinct a) | abs((count(distinct d*f+d+t1.b+17+~t1.f))) from t1) else coalesce((select e from t1 where t1.f not between 17+t1.f+19 and (abs(f)/abs(t1.f))*~t1.b*(b)),coalesce((select t1.b from t1 where 19 in (select count(distinct (t1.d)) from t1 union select  -count(distinct a) from t1)),19)) | 17 end not between t1.c and t1.c)}
+} {}
+do_test randexpr-2.1888 {
+  db eval {SELECT  -19 & t1.c*coalesce((select max(+(select cast(avg(case when  -e+t1.d in (select t1.e*a from t1 union select a from t1) then t1.b when 17 in (select t1.a from t1 union select 11 from t1) then 19 else 11 end-19+a+t1.f) AS integer)+count(distinct t1.a) from t1)+(t1.b)) from t1 where (19) not in (17,d,a)),t1.a)*t1.b*19* -11 FROM t1 WHERE case t1.e when f then (select ~count(distinct a) | abs((count(distinct d*f+d+t1.b+17+~t1.f))) from t1) else coalesce((select e from t1 where t1.f not between 17+t1.f+19 and (abs(f)/abs(t1.f))*~t1.b*(b)),coalesce((select t1.b from t1 where 19 in (select count(distinct (t1.d)) from t1 union select  -count(distinct a) from t1)),19)) | 17 end not between t1.c and t1.c}
+} {-11198220000}
+do_test randexpr-2.1889 {
+  db eval {SELECT (abs(b)/abs((select max(c) from t1)))+case when (select +cast(avg(17 | ~coalesce((select e from t1 where t1.b>(13) |  -11 and c>f),19)+t1.c) AS integer)-(~case cast(avg(t1.f) AS integer)*abs(max(b)+(count(*))+count(distinct b)) when min(c) then cast(avg(t1.b) AS integer) else count(*) end) from t1) in (select t1.e from t1 union select t1.c from t1) then f when d<t1.e then t1.e else 19 end FROM t1 WHERE not ( -a*(select case min(coalesce((select max(a) from t1 where case when 11 between t1.c and d then c when t1.c not in (t1.a,e,t1.c) then d else 13 end*d>=(c)),b)) when max(d) then ( -max(c))+((min(11)))+max(t1.c) else max(t1.a) end from t1)-e+t1.b-(b)-11-t1.d*t1.c<>t1.c)}
+} {}
+do_test randexpr-2.1890 {
+  db eval {SELECT (abs(b)/abs((select max(c) from t1)))+case when (select +cast(avg(17 | ~coalesce((select e from t1 where t1.b>(13) |  -11 and c>f),19)+t1.c) AS integer)-(~case cast(avg(t1.f) AS integer)*abs(max(b)+(count(*))+count(distinct b)) when min(c) then cast(avg(t1.b) AS integer) else count(*) end) from t1) in (select t1.e from t1 union select t1.c from t1) then f when d<t1.e then t1.e else 19 end FROM t1 WHERE NOT (not ( -a*(select case min(coalesce((select max(a) from t1 where case when 11 between t1.c and d then c when t1.c not in (t1.a,e,t1.c) then d else 13 end*d>=(c)),b)) when max(d) then ( -max(c))+((min(11)))+max(t1.c) else max(t1.a) end from t1)-e+t1.b-(b)-11-t1.d*t1.c<>t1.c))}
+} {500}
+do_test randexpr-2.1891 {
+  db eval {SELECT (abs(b)/abs((select max(c) from t1)))+case when (select +cast(avg(17 & ~coalesce((select e from t1 where t1.b>(13) &  -11 and c>f),19)+t1.c) AS integer)-(~case cast(avg(t1.f) AS integer)*abs(max(b)+(count(*))+count(distinct b)) when min(c) then cast(avg(t1.b) AS integer) else count(*) end) from t1) in (select t1.e from t1 union select t1.c from t1) then f when d<t1.e then t1.e else 19 end FROM t1 WHERE NOT (not ( -a*(select case min(coalesce((select max(a) from t1 where case when 11 between t1.c and d then c when t1.c not in (t1.a,e,t1.c) then d else 13 end*d>=(c)),b)) when max(d) then ( -max(c))+((min(11)))+max(t1.c) else max(t1.a) end from t1)-e+t1.b-(b)-11-t1.d*t1.c<>t1.c))}
+} {500}
+do_test randexpr-2.1892 {
+  db eval {SELECT coalesce((select max(case 13 when +coalesce((select max(c) from t1 where t1.a+f in (t1.b,t1.b,(abs(19)/abs(+17+~(abs(t1.a+f)/abs(~t1.c))+case when not exists(select 1 from t1 where coalesce((select max(e) from t1 where (b)> -t1.a),c)=t1.b) then 19 else b end))-f)),t1.a)+a then f else 17 end*t1.e) from t1 where 13<>t1.f),t1.f) FROM t1 WHERE not exists(select 1 from t1 where coalesce((select max(case when 13 not in (t1.b,b,t1.c) then t1.c | t1.a else 13-19+a+t1.e-t1.e end+t1.a*17+( -d)-17 | t1.c-t1.a | 19+b) from t1 where not a=e),11) in (select 17 from t1 union select c from t1) or t1.c>=t1.e)}
+} {8500}
+do_test randexpr-2.1893 {
+  db eval {SELECT coalesce((select max(case 13 when +coalesce((select max(c) from t1 where t1.a+f in (t1.b,t1.b,(abs(19)/abs(+17+~(abs(t1.a+f)/abs(~t1.c))+case when not exists(select 1 from t1 where coalesce((select max(e) from t1 where (b)> -t1.a),c)=t1.b) then 19 else b end))-f)),t1.a)+a then f else 17 end*t1.e) from t1 where 13<>t1.f),t1.f) FROM t1 WHERE NOT (not exists(select 1 from t1 where coalesce((select max(case when 13 not in (t1.b,b,t1.c) then t1.c | t1.a else 13-19+a+t1.e-t1.e end+t1.a*17+( -d)-17 | t1.c-t1.a | 19+b) from t1 where not a=e),11) in (select 17 from t1 union select c from t1) or t1.c>=t1.e))}
+} {}
+do_test randexpr-2.1894 {
+  db eval {SELECT t1.f++c*coalesce((select +t1.f from t1 where a<~13),case when exists(select 1 from t1 where not exists(select 1 from t1 where 17 in (select 11 from t1 union select (17) from t1))) then b else + -19 | coalesce((select case when (select cast(avg(a) AS integer) from t1)>e then case when (11=(e) and 17<f) then (e)+ -c else e end else c end from t1 where 13 not in (f,t1.b,e)),t1.d) end*t1.c) FROM t1 WHERE not exists(select 1 from t1 where exists(select 1 from t1 where t1.e=+(abs((coalesce((select max( -a | case when coalesce((select c from t1 where not 17 not between t1.e and t1.b),e)-(a) not between t1.e and t1.b then f when c>=t1.a then  -c else 19 end-f) from t1 where not exists(select 1 from t1 where d in (select  -~count(distinct 11)+max(t1.a) from t1 union select count(distinct e)* -count(distinct t1.b) from t1)) or (c<t1.c)),t1.f)))/abs(t1.c))))}
+} {-1709400}
+do_test randexpr-2.1895 {
+  db eval {SELECT t1.f++c*coalesce((select +t1.f from t1 where a<~13),case when exists(select 1 from t1 where not exists(select 1 from t1 where 17 in (select 11 from t1 union select (17) from t1))) then b else + -19 | coalesce((select case when (select cast(avg(a) AS integer) from t1)>e then case when (11=(e) and 17<f) then (e)+ -c else e end else c end from t1 where 13 not in (f,t1.b,e)),t1.d) end*t1.c) FROM t1 WHERE NOT (not exists(select 1 from t1 where exists(select 1 from t1 where t1.e=+(abs((coalesce((select max( -a | case when coalesce((select c from t1 where not 17 not between t1.e and t1.b),e)-(a) not between t1.e and t1.b then f when c>=t1.a then  -c else 19 end-f) from t1 where not exists(select 1 from t1 where d in (select  -~count(distinct 11)+max(t1.a) from t1 union select count(distinct e)* -count(distinct t1.b) from t1)) or (c<t1.c)),t1.f)))/abs(t1.c)))))}
+} {}
+do_test randexpr-2.1896 {
+  db eval {SELECT t1.f++c*coalesce((select +t1.f from t1 where a<~13),case when exists(select 1 from t1 where not exists(select 1 from t1 where 17 in (select 11 from t1 union select (17) from t1))) then b else + -19 & coalesce((select case when (select cast(avg(a) AS integer) from t1)>e then case when (11=(e) and 17<f) then (e)+ -c else e end else c end from t1 where 13 not in (f,t1.b,e)),t1.d) end*t1.c) FROM t1 WHERE not exists(select 1 from t1 where exists(select 1 from t1 where t1.e=+(abs((coalesce((select max( -a | case when coalesce((select c from t1 where not 17 not between t1.e and t1.b),e)-(a) not between t1.e and t1.b then f when c>=t1.a then  -c else 19 end-f) from t1 where not exists(select 1 from t1 where d in (select  -~count(distinct 11)+max(t1.a) from t1 union select count(distinct e)* -count(distinct t1.b) from t1)) or (c<t1.c)),t1.f)))/abs(t1.c))))}
+} {27000600}
+do_test randexpr-2.1897 {
+  db eval {SELECT (select + -min(case when case when exists(select 1 from t1 where a<=c or coalesce((select max(11) from t1 where d=17),19)*11<=f and t1.e in (select t1.c from t1 union select a from t1)) then (f)-d when a<t1.a then t1.b else a end in (select ~( -min(f)) from t1 union select case  -max(t1.d)-count(distinct t1.c) when min(f) then cast(avg( -e) AS integer) else ( -count(distinct 17)) end from t1) then d when t1.f>=t1.c then f else t1.f end-f) from t1) FROM t1 WHERE (~ -t1.c in (select d from t1 union select t1.c*case when (17 in (+case c when t1.f then t1.c else c+e+t1.c*e+coalesce((select max((c)) from t1 where (t1.e)>a),19)-t1.e end | e-t1.b,t1.d,c)) then d when t1.e in (select (max( -e)-~~count(*)) from t1 union select count(*) from t1) then d else t1.f end from t1))}
+} {}
+do_test randexpr-2.1898 {
+  db eval {SELECT (select + -min(case when case when exists(select 1 from t1 where a<=c or coalesce((select max(11) from t1 where d=17),19)*11<=f and t1.e in (select t1.c from t1 union select a from t1)) then (f)-d when a<t1.a then t1.b else a end in (select ~( -min(f)) from t1 union select case  -max(t1.d)-count(distinct t1.c) when min(f) then cast(avg( -e) AS integer) else ( -count(distinct 17)) end from t1) then d when t1.f>=t1.c then f else t1.f end-f) from t1) FROM t1 WHERE NOT ((~ -t1.c in (select d from t1 union select t1.c*case when (17 in (+case c when t1.f then t1.c else c+e+t1.c*e+coalesce((select max((c)) from t1 where (t1.e)>a),19)-t1.e end | e-t1.b,t1.d,c)) then d when t1.e in (select (max( -e)-~~count(*)) from t1 union select count(*) from t1) then d else t1.f end from t1)))}
+} {0}
+do_test randexpr-2.1899 {
+  db eval {SELECT ~+t1.f-coalesce((select t1.f from t1 where case when t1.d>=t1.f then b else case c when 11 then t1.f*case when (select (count(*)) from t1)<>a+t1.b | +11-coalesce((select max(t1.f-a) from t1 where (f<=t1.c and t1.d=c)),d)-11 then b when (t1.c)<=t1.b then 19 else 11 end else c end end*19-13< - -b),e) FROM t1 WHERE (exists(select 1 from t1 where  -t1.f not between ~17 and t1.a+(b+d+13)))}
+} {-1101}
+do_test randexpr-2.1900 {
+  db eval {SELECT ~+t1.f-coalesce((select t1.f from t1 where case when t1.d>=t1.f then b else case c when 11 then t1.f*case when (select (count(*)) from t1)<>a+t1.b | +11-coalesce((select max(t1.f-a) from t1 where (f<=t1.c and t1.d=c)),d)-11 then b when (t1.c)<=t1.b then 19 else 11 end else c end end*19-13< - -b),e) FROM t1 WHERE NOT ((exists(select 1 from t1 where  -t1.f not between ~17 and t1.a+(b+d+13))))}
+} {}
+do_test randexpr-2.1901 {
+  db eval {SELECT ~+t1.f-coalesce((select t1.f from t1 where case when t1.d>=t1.f then b else case c when 11 then t1.f*case when (select (count(*)) from t1)<>a+t1.b & +11-coalesce((select max(t1.f-a) from t1 where (f<=t1.c and t1.d=c)),d)-11 then b when (t1.c)<=t1.b then 19 else 11 end else c end end*19-13< - -b),e) FROM t1 WHERE (exists(select 1 from t1 where  -t1.f not between ~17 and t1.a+(b+d+13)))}
+} {-1101}
+do_test randexpr-2.1902 {
+  db eval {SELECT  -t1.e+coalesce((select (d) from t1 where t1.f=t1.f*(select +count(distinct case when (coalesce((select max(case when a in (select b+17 from t1 union select  -17 from t1) then 19 when 17<c then t1.b else c end | t1.e) from t1 where exists(select 1 from t1 where  -e in (t1.b,t1.d,c) and f not between t1.f and b) and 17<>a),e)<>f or d not between (e) and b) then 11 else (abs(13)/abs( -(d))) end*t1.c) from t1)),e-f) FROM t1 WHERE ((case when t1.e+d*~coalesce((select coalesce((select max(b) from t1 where ~case when t1.f not between t1.c and coalesce((select t1.b from t1 where  -t1.e in (select (( - -min(19))) from t1 union select count(distinct t1.d) from t1)),t1.d) then c when t1.f=e then t1.f else b end=13),13) from t1 where t1.e not between 13 and 11 or not exists(select 1 from t1 where t1.a not between (11) and d and 11>=a)),t1.f) in (select count(*) from t1 union select ~max( -13) from t1) then  -13 else 17 end) | d in (a,d,13))}
+} {}
+do_test randexpr-2.1903 {
+  db eval {SELECT  -t1.e+coalesce((select (d) from t1 where t1.f=t1.f*(select +count(distinct case when (coalesce((select max(case when a in (select b+17 from t1 union select  -17 from t1) then 19 when 17<c then t1.b else c end | t1.e) from t1 where exists(select 1 from t1 where  -e in (t1.b,t1.d,c) and f not between t1.f and b) and 17<>a),e)<>f or d not between (e) and b) then 11 else (abs(13)/abs( -(d))) end*t1.c) from t1)),e-f) FROM t1 WHERE NOT (((case when t1.e+d*~coalesce((select coalesce((select max(b) from t1 where ~case when t1.f not between t1.c and coalesce((select t1.b from t1 where  -t1.e in (select (( - -min(19))) from t1 union select count(distinct t1.d) from t1)),t1.d) then c when t1.f=e then t1.f else b end=13),13) from t1 where t1.e not between 13 and 11 or not exists(select 1 from t1 where t1.a not between (11) and d and 11>=a)),t1.f) in (select count(*) from t1 union select ~max( -13) from t1) then  -13 else 17 end) | d in (a,d,13)))}
+} {-100}
+do_test randexpr-2.1904 {
+  db eval {SELECT  -t1.e+coalesce((select (d) from t1 where t1.f=t1.f*(select +count(distinct case when (coalesce((select max(case when a in (select b+17 from t1 union select  -17 from t1) then 19 when 17<c then t1.b else c end & t1.e) from t1 where exists(select 1 from t1 where  -e in (t1.b,t1.d,c) and f not between t1.f and b) and 17<>a),e)<>f or d not between (e) and b) then 11 else (abs(13)/abs( -(d))) end*t1.c) from t1)),e-f) FROM t1 WHERE NOT (((case when t1.e+d*~coalesce((select coalesce((select max(b) from t1 where ~case when t1.f not between t1.c and coalesce((select t1.b from t1 where  -t1.e in (select (( - -min(19))) from t1 union select count(distinct t1.d) from t1)),t1.d) then c when t1.f=e then t1.f else b end=13),13) from t1 where t1.e not between 13 and 11 or not exists(select 1 from t1 where t1.a not between (11) and d and 11>=a)),t1.f) in (select count(*) from t1 union select ~max( -13) from t1) then  -13 else 17 end) | d in (a,d,13)))}
+} {-100}
+do_test randexpr-2.1905 {
+  db eval {SELECT coalesce((select max((19)) from t1 where d* -a<=(select count(*) from t1)+19*19*a-e-d or b in (t1.c+ -t1.b,t1.a,b+t1.b)),d) FROM t1 WHERE exists(select 1 from t1 where exists(select 1 from t1 where not t1.e>e))}
+} {19}
+do_test randexpr-2.1906 {
+  db eval {SELECT coalesce((select max((19)) from t1 where d* -a<=(select count(*) from t1)+19*19*a-e-d or b in (t1.c+ -t1.b,t1.a,b+t1.b)),d) FROM t1 WHERE NOT (exists(select 1 from t1 where exists(select 1 from t1 where not t1.e>e)))}
+} {}
+do_test randexpr-2.1907 {
+  db eval {SELECT (select  -~count(distinct (abs(11)/abs(f-17-+(select cast(avg(+(select count(*) from t1)) AS integer) from t1)))) from t1) FROM t1 WHERE (abs((a))/abs(t1.b))>(select count(distinct case case when 17 in (select  -b-case when 17 in (select +(( - -max(t1.b))) from t1 union select max((t1.b)) from t1) then f when t1.e=(t1.d) then 17 else e end | e-t1.d | t1.c* -13*d*t1.b from t1 union select 11 from t1) then c when c>=a then 13 else 13 end+t1.b when  -f then 19 else 13 end)*min(t1.f) from t1)-19-f}
+} {2}
+do_test randexpr-2.1908 {
+  db eval {SELECT (select  -~count(distinct (abs(11)/abs(f-17-+(select cast(avg(+(select count(*) from t1)) AS integer) from t1)))) from t1) FROM t1 WHERE NOT ((abs((a))/abs(t1.b))>(select count(distinct case case when 17 in (select  -b-case when 17 in (select +(( - -max(t1.b))) from t1 union select max((t1.b)) from t1) then f when t1.e=(t1.d) then 17 else e end | e-t1.d | t1.c* -13*d*t1.b from t1 union select 11 from t1) then c when c>=a then 13 else 13 end+t1.b when  -f then 19 else 13 end)*min(t1.f) from t1)-19-f)}
+} {}
+do_test randexpr-2.1909 {
+  db eval {SELECT  -(select cast(avg(coalesce((select max(f) from t1 where  -case coalesce((select max(~c-case when exists(select 1 from t1 where  -b in (~e,t1.e,t1.e)) then t1.e when (17 in (select ++ -(count(distinct t1.a)) from t1 union select (max( -f)) from t1)) then b else t1.f end) from t1 where (13 in (19,b,11))),t1.e) when c then (b) else 11 end-a*b*13=t1.e),13)) AS integer) from t1) FROM t1 WHERE exists(select 1 from t1 where case when not (case when ~17*d>=b then a when c*(abs((abs(f)/abs(t1.c)))/abs(t1.b))+d*t1.b<19 and not case 13 when a then 11 else  -t1.e end<>f then 11 else c end+t1.d) not in (t1.c,t1.f,d) then (abs(c)/abs(t1.f)) else t1.a end*t1.f not between t1.d and c)}
+} {-13}
+do_test randexpr-2.1910 {
+  db eval {SELECT  -(select cast(avg(coalesce((select max(f) from t1 where  -case coalesce((select max(~c-case when exists(select 1 from t1 where  -b in (~e,t1.e,t1.e)) then t1.e when (17 in (select ++ -(count(distinct t1.a)) from t1 union select (max( -f)) from t1)) then b else t1.f end) from t1 where (13 in (19,b,11))),t1.e) when c then (b) else 11 end-a*b*13=t1.e),13)) AS integer) from t1) FROM t1 WHERE NOT (exists(select 1 from t1 where case when not (case when ~17*d>=b then a when c*(abs((abs(f)/abs(t1.c)))/abs(t1.b))+d*t1.b<19 and not case 13 when a then 11 else  -t1.e end<>f then 11 else c end+t1.d) not in (t1.c,t1.f,d) then (abs(c)/abs(t1.f)) else t1.a end*t1.f not between t1.d and c))}
+} {}
+do_test randexpr-2.1911 {
+  db eval {SELECT case t1.c when (select abs( -max(t1.a*t1.f*t1.a*e)) from t1)*case when not exists(select 1 from t1 where (select cast(avg(c) AS integer) from t1) in (select case case when ( -case t1.f when 17 then t1.c else e end=17) then 19 else e end when e then c else  -a end*t1.d from t1 union select d from t1)) then e*t1.a else b end+e*t1.d+t1.b then t1.d else c end+t1.e FROM t1 WHERE 13 in (select +abs(case count(distinct t1.e+(abs((abs(coalesce((select t1.b from t1 where coalesce((select max(case when (19<=t1.d) then (13) when a>=13 then 13 else t1.f end) from t1 where a in (t1.c,19,t1.b)),19)>13),d))/abs(f))+t1.a*t1.b)/abs(e))) when +cast(avg(c) AS integer) then ~~+max(f) | cast(avg(t1.c) AS integer) else count(distinct 13)+min(t1.b) | count(*) end)*max(t1.d)-count(*) from t1 union select count(*) from t1)}
+} {}
+do_test randexpr-2.1912 {
+  db eval {SELECT case t1.c when (select abs( -max(t1.a*t1.f*t1.a*e)) from t1)*case when not exists(select 1 from t1 where (select cast(avg(c) AS integer) from t1) in (select case case when ( -case t1.f when 17 then t1.c else e end=17) then 19 else e end when e then c else  -a end*t1.d from t1 union select d from t1)) then e*t1.a else b end+e*t1.d+t1.b then t1.d else c end+t1.e FROM t1 WHERE NOT (13 in (select +abs(case count(distinct t1.e+(abs((abs(coalesce((select t1.b from t1 where coalesce((select max(case when (19<=t1.d) then (13) when a>=13 then 13 else t1.f end) from t1 where a in (t1.c,19,t1.b)),19)>13),d))/abs(f))+t1.a*t1.b)/abs(e))) when +cast(avg(c) AS integer) then ~~+max(f) | cast(avg(t1.c) AS integer) else count(distinct 13)+min(t1.b) | count(*) end)*max(t1.d)-count(*) from t1 union select count(*) from t1))}
+} {800}
+do_test randexpr-2.1913 {
+  db eval {SELECT case when f in (d, -case when (case 11 when (select max(t1.d) from t1) then (abs(a)/abs(+t1.b)) else ~b end<19) then (abs( -(abs(17)/abs(t1.f)))/abs((select count(*) from t1))) when (f) not between coalesce((select 13 from t1 where t1.a<=case t1.a when 13 then  -t1.c else 13 end and 13 not between t1.f and 11),11) and 19 then e else b end,t1.d) then b else t1.b end FROM t1 WHERE t1.f between f and a-c-t1.d-t1.d+t1.d*case when exists(select 1 from t1 where d between (select ~cast(avg(17) AS integer) from t1) and a) then case when case b when f then 13 else b end<c then t1.d when (t1.a) in (select  -( -b) from t1 union select  -t1.f from t1) and f not in (t1.b,t1.d,t1.a) then  -d else (13) end when d in (c,((t1.d)),c) then b else 19 end and exists(select 1 from t1 where not t1.a=17)}
+} {200}
+do_test randexpr-2.1914 {
+  db eval {SELECT case when f in (d, -case when (case 11 when (select max(t1.d) from t1) then (abs(a)/abs(+t1.b)) else ~b end<19) then (abs( -(abs(17)/abs(t1.f)))/abs((select count(*) from t1))) when (f) not between coalesce((select 13 from t1 where t1.a<=case t1.a when 13 then  -t1.c else 13 end and 13 not between t1.f and 11),11) and 19 then e else b end,t1.d) then b else t1.b end FROM t1 WHERE NOT (t1.f between f and a-c-t1.d-t1.d+t1.d*case when exists(select 1 from t1 where d between (select ~cast(avg(17) AS integer) from t1) and a) then case when case b when f then 13 else b end<c then t1.d when (t1.a) in (select  -( -b) from t1 union select  -t1.f from t1) and f not in (t1.b,t1.d,t1.a) then  -d else (13) end when d in (c,((t1.d)),c) then b else 19 end and exists(select 1 from t1 where not t1.a=17))}
+} {}
+do_test randexpr-2.1915 {
+  db eval {SELECT (abs(case when 11<=case 17 when t1.d then t1.b+~19-~case when not t1.b not in (t1.a,b,coalesce((select a+(a) from t1 where t1.b>19),t1.b)) or ((t1.a>19)) or e<>19 then  -t1.e else  -13 end-b+t1.d else a end then 19 when d between b and t1.c then t1.e else e end)/abs(t1.a)) FROM t1 WHERE b | t1.b>b-case when a-f in (select 17 from t1 union select coalesce((select coalesce((select t1.e+t1.a+d+d from t1 where 13 not between t1.e+19 and 13),(select count(distinct t1.e) from t1)*11) from t1 where b not in (b,(t1.f),t1.a)),13) from t1) then b else c end+a-13-13*(13) | 11}
+} {0}
+do_test randexpr-2.1916 {
+  db eval {SELECT (abs(case when 11<=case 17 when t1.d then t1.b+~19-~case when not t1.b not in (t1.a,b,coalesce((select a+(a) from t1 where t1.b>19),t1.b)) or ((t1.a>19)) or e<>19 then  -t1.e else  -13 end-b+t1.d else a end then 19 when d between b and t1.c then t1.e else e end)/abs(t1.a)) FROM t1 WHERE NOT (b | t1.b>b-case when a-f in (select 17 from t1 union select coalesce((select coalesce((select t1.e+t1.a+d+d from t1 where 13 not between t1.e+19 and 13),(select count(distinct t1.e) from t1)*11) from t1 where b not in (b,(t1.f),t1.a)),13) from t1) then b else c end+a-13-13*(13) | 11)}
+} {}
+do_test randexpr-2.1917 {
+  db eval {SELECT  -t1.a | coalesce((select t1.f*(select min(f)+min(( -(select  -case (min(13)) when  -abs(min(t1.b)) then count(distinct a) else count(*) end from t1)*(select  - -count(*) from t1)))* -count(*) from t1) from t1 where t1.d in (select case case when t1.a<(f) then c else 19 end when f then b else  -c end*a*t1.c from t1 union select t1.b from t1)),b) | a FROM t1 WHERE +19*case when exists(select 1 from t1 where e<+13 | f or t1.d=19) then t1.a when case when exists(select 1 from t1 where t1.c in (select 11 from t1 union select c from t1)) then 13*t1.e else 19 end<=c and (t1.e between (b) and 13) or 11 not between t1.f and 13 or 17 between b and 13 then t1.e+a else 17 end not between b and d or t1.e not between 13 and 17}
+} {-4}
+do_test randexpr-2.1918 {
+  db eval {SELECT  -t1.a | coalesce((select t1.f*(select min(f)+min(( -(select  -case (min(13)) when  -abs(min(t1.b)) then count(distinct a) else count(*) end from t1)*(select  - -count(*) from t1)))* -count(*) from t1) from t1 where t1.d in (select case case when t1.a<(f) then c else 19 end when f then b else  -c end*a*t1.c from t1 union select t1.b from t1)),b) | a FROM t1 WHERE NOT (+19*case when exists(select 1 from t1 where e<+13 | f or t1.d=19) then t1.a when case when exists(select 1 from t1 where t1.c in (select 11 from t1 union select c from t1)) then 13*t1.e else 19 end<=c and (t1.e between (b) and 13) or 11 not between t1.f and 13 or 17 between b and 13 then t1.e+a else 17 end not between b and d or t1.e not between 13 and 17)}
+} {}
+do_test randexpr-2.1919 {
+  db eval {SELECT  -t1.a & coalesce((select t1.f*(select min(f)+min(( -(select  -case (min(13)) when  -abs(min(t1.b)) then count(distinct a) else count(*) end from t1)*(select  - -count(*) from t1)))* -count(*) from t1) from t1 where t1.d in (select case case when t1.a<(f) then c else 19 end when f then b else  -c end*a*t1.c from t1 union select t1.b from t1)),b) & a FROM t1 WHERE +19*case when exists(select 1 from t1 where e<+13 | f or t1.d=19) then t1.a when case when exists(select 1 from t1 where t1.c in (select 11 from t1 union select c from t1)) then 13*t1.e else 19 end<=c and (t1.e between (b) and 13) or 11 not between t1.f and 13 or 17 between b and 13 then t1.e+a else 17 end not between b and d or t1.e not between 13 and 17}
+} {0}
+do_test randexpr-2.1920 {
+  db eval {SELECT (select  -case +count(distinct case when  -+ -~case when ((t1.e)) not between e and f then e when t1.b between  -11 and t1.b then d else t1.a end*19 in (select t1.f from t1 union select t1.d from t1) then t1.b when a in (select  -19 from t1 union select c from t1) then a else f end) when +~ -(count(*)) then  -( -count(distinct t1.e))-count(distinct c) else max(t1.c) end-count(distinct t1.c)-count(distinct 19)-(max(11)) from t1) FROM t1 WHERE  -~coalesce((select max(19*t1.b) from t1 where t1.d in (select max( -coalesce((select max(t1.c) from t1 where case 13 when f+ -13+t1.b-case 13 when t1.a | (abs(t1.a)/abs(t1.f)) then 11 else f end then f else 17 end in (b,t1.d,(e))),13)) from t1 union select ~~min(b)*abs(cast(avg(b) AS integer)) from t1)),e)*((t1.d))<>t1.d}
+} {-313}
+do_test randexpr-2.1921 {
+  db eval {SELECT (select  -case +count(distinct case when  -+ -~case when ((t1.e)) not between e and f then e when t1.b between  -11 and t1.b then d else t1.a end*19 in (select t1.f from t1 union select t1.d from t1) then t1.b when a in (select  -19 from t1 union select c from t1) then a else f end) when +~ -(count(*)) then  -( -count(distinct t1.e))-count(distinct c) else max(t1.c) end-count(distinct t1.c)-count(distinct 19)-(max(11)) from t1) FROM t1 WHERE NOT ( -~coalesce((select max(19*t1.b) from t1 where t1.d in (select max( -coalesce((select max(t1.c) from t1 where case 13 when f+ -13+t1.b-case 13 when t1.a | (abs(t1.a)/abs(t1.f)) then 11 else f end then f else 17 end in (b,t1.d,(e))),13)) from t1 union select ~~min(b)*abs(cast(avg(b) AS integer)) from t1)),e)*((t1.d))<>t1.d)}
+} {}
+do_test randexpr-2.1922 {
+  db eval {SELECT case a when c then (abs((select abs(~(+~~case max(t1.d) when +count(distinct ~d | (select case max(17) when count(*) then count(distinct (t1.c)) else count(distinct 11) end from t1)) then (+cast(avg((17)) AS integer))+count(*) else  -(( - -(cast(avg(c) AS integer)))) end)+count(distinct t1.e)+min(13)) from t1)*+11-((abs(t1.a)/abs(coalesce((select c from t1 where ((t1.f<>d))),(t1.c))))) | t1.d)/abs( -(d))) else a end FROM t1 WHERE coalesce((select max(case t1.a when +t1.e then case when t1.c+(select (max(t1.d))-max(13)+cast(avg(c) AS integer)+min((e)) | max(a) from t1)<= -t1.a | case when not exists(select 1 from t1 where  -t1.d<=t1.a) then t1.f when 11<a then f else t1.f end then b when  -t1.c>=c then a else 13 end | t1.c else t1.a end) from t1 where 19<=e and t1.e between t1.d and 11),13) not in (e,a,c)}
+} {100}
+do_test randexpr-2.1923 {
+  db eval {SELECT case a when c then (abs((select abs(~(+~~case max(t1.d) when +count(distinct ~d | (select case max(17) when count(*) then count(distinct (t1.c)) else count(distinct 11) end from t1)) then (+cast(avg((17)) AS integer))+count(*) else  -(( - -(cast(avg(c) AS integer)))) end)+count(distinct t1.e)+min(13)) from t1)*+11-((abs(t1.a)/abs(coalesce((select c from t1 where ((t1.f<>d))),(t1.c))))) | t1.d)/abs( -(d))) else a end FROM t1 WHERE NOT (coalesce((select max(case t1.a when +t1.e then case when t1.c+(select (max(t1.d))-max(13)+cast(avg(c) AS integer)+min((e)) | max(a) from t1)<= -t1.a | case when not exists(select 1 from t1 where  -t1.d<=t1.a) then t1.f when 11<a then f else t1.f end then b when  -t1.c>=c then a else 13 end | t1.c else t1.a end) from t1 where 19<=e and t1.e between t1.d and 11),13) not in (e,a,c))}
+} {}
+do_test randexpr-2.1924 {
+  db eval {SELECT case a when c then (abs((select abs(~(+~~case max(t1.d) when +count(distinct ~d & (select case max(17) when count(*) then count(distinct (t1.c)) else count(distinct 11) end from t1)) then (+cast(avg((17)) AS integer))+count(*) else  -(( - -(cast(avg(c) AS integer)))) end)+count(distinct t1.e)+min(13)) from t1)*+11-((abs(t1.a)/abs(coalesce((select c from t1 where ((t1.f<>d))),(t1.c))))) & t1.d)/abs( -(d))) else a end FROM t1 WHERE coalesce((select max(case t1.a when +t1.e then case when t1.c+(select (max(t1.d))-max(13)+cast(avg(c) AS integer)+min((e)) | max(a) from t1)<= -t1.a | case when not exists(select 1 from t1 where  -t1.d<=t1.a) then t1.f when 11<a then f else t1.f end then b when  -t1.c>=c then a else 13 end | t1.c else t1.a end) from t1 where 19<=e and t1.e between t1.d and 11),13) not in (e,a,c)}
+} {100}
+do_test randexpr-2.1925 {
+  db eval {SELECT t1.d-+case ~(select ~+~count(distinct case when case when case when 11 not between t1.c and t1.a-e then t1.d else e end*d-(d) between  -13 and e then a else c end in (select b from t1 union select 17 from t1) then a else 13 end)*cast(avg(d) AS integer) from t1) when t1.e then (abs(11)/abs(coalesce((select max(19) from t1 where (a)<>t1.e),19))) else t1.c end+t1.c FROM t1 WHERE 19 not in (t1.a*+case when  -c+~t1.a-t1.c in (t1.a,b*case t1.a | coalesce((select max(coalesce((select 17 from t1 where t1.e>t1.a),t1.d)) from t1 where not 11=19),17) when 11 then t1.d else (f) end*b-t1.a+c, -b) then d when a<>f then a else b end-c,d,t1.b)}
+} {400}
+do_test randexpr-2.1926 {
+  db eval {SELECT t1.d-+case ~(select ~+~count(distinct case when case when case when 11 not between t1.c and t1.a-e then t1.d else e end*d-(d) between  -13 and e then a else c end in (select b from t1 union select 17 from t1) then a else 13 end)*cast(avg(d) AS integer) from t1) when t1.e then (abs(11)/abs(coalesce((select max(19) from t1 where (a)<>t1.e),19))) else t1.c end+t1.c FROM t1 WHERE NOT (19 not in (t1.a*+case when  -c+~t1.a-t1.c in (t1.a,b*case t1.a | coalesce((select max(coalesce((select 17 from t1 where t1.e>t1.a),t1.d)) from t1 where not 11=19),17) when 11 then t1.d else (f) end*b-t1.a+c, -b) then d when a<>f then a else b end-c,d,t1.b))}
+} {}
+do_test randexpr-2.1927 {
+  db eval {SELECT case when case (select +min(~ -11+f*~b) | case abs(cast(avg(t1.f) AS integer))*~min(c) when count(*)+max( -11) then abs(count(*)) else max(13) end from t1) when coalesce((select max(coalesce((select max(19) from t1 where (17>=17)),t1.f)) from t1 where c<b),13) then t1.f else (f) end*t1.f>t1.a then  -d else  -t1.b end FROM t1 WHERE t1.a+b-t1.c*17>=c}
+} {}
+do_test randexpr-2.1928 {
+  db eval {SELECT case when case (select +min(~ -11+f*~b) | case abs(cast(avg(t1.f) AS integer))*~min(c) when count(*)+max( -11) then abs(count(*)) else max(13) end from t1) when coalesce((select max(coalesce((select max(19) from t1 where (17>=17)),t1.f)) from t1 where c<b),13) then t1.f else (f) end*t1.f>t1.a then  -d else  -t1.b end FROM t1 WHERE NOT (t1.a+b-t1.c*17>=c)}
+} {-400}
+do_test randexpr-2.1929 {
+  db eval {SELECT case when case (select +min(~ -11+f*~b) & case abs(cast(avg(t1.f) AS integer))*~min(c) when count(*)+max( -11) then abs(count(*)) else max(13) end from t1) when coalesce((select max(coalesce((select max(19) from t1 where (17>=17)),t1.f)) from t1 where c<b),13) then t1.f else (f) end*t1.f>t1.a then  -d else  -t1.b end FROM t1 WHERE NOT (t1.a+b-t1.c*17>=c)}
+} {-400}
+do_test randexpr-2.1930 {
+  db eval {SELECT case when ~case when t1.f>11*t1.a then f when case when (t1.c*19<(t1.f)) then (e) when a<t1.f then c else  -e end not in (11,b,19) then t1.a else f end=17 or not t1.a>t1.e and a in (d,t1.c,13) then t1.b when  -17 not between f and d then f else t1.c end FROM t1 WHERE c in (select + -min(case (select count(*) from t1) when t1.a then t1.c else coalesce((select max(b) from t1 where d in (select  -abs(cast(avg(t1.b) AS integer)) | (min(t1.f)) | count(distinct a)+abs(cast(avg(b) AS integer))*( -min(b)) | cast(avg(t1.c) AS integer)*((min(t1.e))) from t1 union select cast(avg(f) AS integer) from t1)),t1.e) | +case b when  -t1.c then (select (count(*)) from t1) else b end | 13 end) from t1 union select min(t1.d) from t1)}
+} {}
+do_test randexpr-2.1931 {
+  db eval {SELECT case when ~case when t1.f>11*t1.a then f when case when (t1.c*19<(t1.f)) then (e) when a<t1.f then c else  -e end not in (11,b,19) then t1.a else f end=17 or not t1.a>t1.e and a in (d,t1.c,13) then t1.b when  -17 not between f and d then f else t1.c end FROM t1 WHERE NOT (c in (select + -min(case (select count(*) from t1) when t1.a then t1.c else coalesce((select max(b) from t1 where d in (select  -abs(cast(avg(t1.b) AS integer)) | (min(t1.f)) | count(distinct a)+abs(cast(avg(b) AS integer))*( -min(b)) | cast(avg(t1.c) AS integer)*((min(t1.e))) from t1 union select cast(avg(f) AS integer) from t1)),t1.e) | +case b when  -t1.c then (select (count(*)) from t1) else b end | 13 end) from t1 union select min(t1.d) from t1))}
+} {600}
+do_test randexpr-2.1932 {
+  db eval {SELECT case when (b) between 19 and case when t1.a* -t1.d+t1.a-t1.d-b-a<=d then t1.c when not exists(select 1 from t1 where (13>t1.e) and ((a>a))) and  -(13)>t1.b then t1.d else 11 end or d=e then 13+t1.f when ( -a) not between t1.e and t1.b then (c) else t1.e end+t1.a+17 FROM t1 WHERE (case when a<=f+t1.a | f then t1.c*a-coalesce((select max( -e) from t1 where t1.a=t1.d),b)*d- -f else t1.b end) in (select min(t1.f)+~max(b) | count(distinct t1.d)*+ - -case (count(*)) when +count(distinct e) then count(*) else  -cast(avg(d) AS integer) end from t1 union select count(*) from t1) and d between 11 and t1.a}
+} {}
+do_test randexpr-2.1933 {
+  db eval {SELECT case when (b) between 19 and case when t1.a* -t1.d+t1.a-t1.d-b-a<=d then t1.c when not exists(select 1 from t1 where (13>t1.e) and ((a>a))) and  -(13)>t1.b then t1.d else 11 end or d=e then 13+t1.f when ( -a) not between t1.e and t1.b then (c) else t1.e end+t1.a+17 FROM t1 WHERE NOT ((case when a<=f+t1.a | f then t1.c*a-coalesce((select max( -e) from t1 where t1.a=t1.d),b)*d- -f else t1.b end) in (select min(t1.f)+~max(b) | count(distinct t1.d)*+ - -case (count(*)) when +count(distinct e) then count(*) else  -cast(avg(d) AS integer) end from t1 union select count(*) from t1) and d between 11 and t1.a)}
+} {730}
+do_test randexpr-2.1934 {
+  db eval {SELECT +f*19*~~ -t1.c-13-case when t1.b in (select +case when not exists(select 1 from t1 where (((abs((abs((select count(*)*(count(distinct t1.d)) from t1))/abs(b)))/abs(e))*(e))>=d)) then f when t1.a=f then b else t1.e end+19 | (17) from t1 union select t1.b from t1) or  -e<t1.d then 11 else a end-t1.b FROM t1 WHERE (e in (17,t1.b*19+(abs(19)/abs(coalesce((select t1.b+d from t1 where not exists(select 1 from t1 where 19* -t1.c+ -t1.b-~e not between 11-c+b and 11) or e=a),d))),a)) and d<=b or b>e and t1.e<=t1.b}
+} {}
+do_test randexpr-2.1935 {
+  db eval {SELECT +f*19*~~ -t1.c-13-case when t1.b in (select +case when not exists(select 1 from t1 where (((abs((abs((select count(*)*(count(distinct t1.d)) from t1))/abs(b)))/abs(e))*(e))>=d)) then f when t1.a=f then b else t1.e end+19 | (17) from t1 union select t1.b from t1) or  -e<t1.d then 11 else a end-t1.b FROM t1 WHERE NOT ((e in (17,t1.b*19+(abs(19)/abs(coalesce((select t1.b+d from t1 where not exists(select 1 from t1 where 19* -t1.c+ -t1.b-~e not between 11-c+b and 11) or e=a),d))),a)) and d<=b or b>e and t1.e<=t1.b)}
+} {-3420224}
+do_test randexpr-2.1936 {
+  db eval {SELECT +f*19*~~ -t1.c-13-case when t1.b in (select +case when not exists(select 1 from t1 where (((abs((abs((select count(*)*(count(distinct t1.d)) from t1))/abs(b)))/abs(e))*(e))>=d)) then f when t1.a=f then b else t1.e end+19 & (17) from t1 union select t1.b from t1) or  -e<t1.d then 11 else a end-t1.b FROM t1 WHERE NOT ((e in (17,t1.b*19+(abs(19)/abs(coalesce((select t1.b+d from t1 where not exists(select 1 from t1 where 19* -t1.c+ -t1.b-~e not between 11-c+b and 11) or e=a),d))),a)) and d<=b or b>e and t1.e<=t1.b)}
+} {-3420224}
+do_test randexpr-2.1937 {
+  db eval {SELECT f-coalesce((select max(d+~+ - -(a)*(select min(t1.d) from t1)*t1.f+case when ( -13)*t1.e<>11 |  -t1.e or c=11 then (t1.e) when  -t1.d<=t1.b and (t1.f<>t1.c) then a else  -t1.f end) from t1 where 11 not between t1.e and b),t1.f)-13 FROM t1 WHERE  -a not in (17+~coalesce((select t1.a from t1 where (exists(select 1 from t1 where 11>c))),11)+17-11,11,t1.c) or f in (select case (min((t1.a))) when max(b) then min(13) else cast(avg(c) AS integer) end*max(d)*(case cast(avg(19) AS integer) when ( -min(19)) then count(*) else count(*) end) |  -cast(avg(19) AS integer) from t1 union select cast(avg(b) AS integer) from t1) or t1.f>= -t1.d}
+} {24239687}
+do_test randexpr-2.1938 {
+  db eval {SELECT f-coalesce((select max(d+~+ - -(a)*(select min(t1.d) from t1)*t1.f+case when ( -13)*t1.e<>11 |  -t1.e or c=11 then (t1.e) when  -t1.d<=t1.b and (t1.f<>t1.c) then a else  -t1.f end) from t1 where 11 not between t1.e and b),t1.f)-13 FROM t1 WHERE NOT ( -a not in (17+~coalesce((select t1.a from t1 where (exists(select 1 from t1 where 11>c))),11)+17-11,11,t1.c) or f in (select case (min((t1.a))) when max(b) then min(13) else cast(avg(c) AS integer) end*max(d)*(case cast(avg(19) AS integer) when ( -min(19)) then count(*) else count(*) end) |  -cast(avg(19) AS integer) from t1 union select cast(avg(b) AS integer) from t1) or t1.f>= -t1.d)}
+} {}
+do_test randexpr-2.1939 {
+  db eval {SELECT f-coalesce((select max(d+~+ - -(a)*(select min(t1.d) from t1)*t1.f+case when ( -13)*t1.e<>11 &  -t1.e or c=11 then (t1.e) when  -t1.d<=t1.b and (t1.f<>t1.c) then a else  -t1.f end) from t1 where 11 not between t1.e and b),t1.f)-13 FROM t1 WHERE  -a not in (17+~coalesce((select t1.a from t1 where (exists(select 1 from t1 where 11>c))),11)+17-11,11,t1.c) or f in (select case (min((t1.a))) when max(b) then min(13) else cast(avg(c) AS integer) end*max(d)*(case cast(avg(19) AS integer) when ( -min(19)) then count(*) else count(*) end) |  -cast(avg(19) AS integer) from t1 union select cast(avg(b) AS integer) from t1) or t1.f>= -t1.d}
+} {24239687}
+do_test randexpr-2.1940 {
+  db eval {SELECT ~case when ~coalesce((select max(f) from t1 where b | (select +max(13) from t1)+t1.b<~13*t1.d*coalesce((select  -t1.b from t1 where coalesce((select t1.e+a from t1 where 11=17),a) between 19 and e),17)*d),t1.b) in (select cast(avg(t1.d) AS integer) from t1 union select ~count(distinct 11) from t1) then 11 when t1.d>=t1.b then 13 else f end-t1.e FROM t1 WHERE not exists(select 1 from t1 where coalesce((select case t1.b when  -t1.c then c-17 else case f when (abs(case when ((13*case  -e when case when b>c and 11>11 then  -a when  -(t1.c)>t1.e then d else t1.d end then t1.d else t1.e end<=11)) then ~t1.b+f when (d)<=c then t1.a else (t1.a) end+b)/abs(b)) then  -b else 11 end end-19 from t1 where t1.e<=t1.b),a)>t1.a)}
+} {-514}
+do_test randexpr-2.1941 {
+  db eval {SELECT ~case when ~coalesce((select max(f) from t1 where b | (select +max(13) from t1)+t1.b<~13*t1.d*coalesce((select  -t1.b from t1 where coalesce((select t1.e+a from t1 where 11=17),a) between 19 and e),17)*d),t1.b) in (select cast(avg(t1.d) AS integer) from t1 union select ~count(distinct 11) from t1) then 11 when t1.d>=t1.b then 13 else f end-t1.e FROM t1 WHERE NOT (not exists(select 1 from t1 where coalesce((select case t1.b when  -t1.c then c-17 else case f when (abs(case when ((13*case  -e when case when b>c and 11>11 then  -a when  -(t1.c)>t1.e then d else t1.d end then t1.d else t1.e end<=11)) then ~t1.b+f when (d)<=c then t1.a else (t1.a) end+b)/abs(b)) then  -b else 11 end end-19 from t1 where t1.e<=t1.b),a)>t1.a))}
+} {}
+do_test randexpr-2.1942 {
+  db eval {SELECT ~case when ~coalesce((select max(f) from t1 where b & (select +max(13) from t1)+t1.b<~13*t1.d*coalesce((select  -t1.b from t1 where coalesce((select t1.e+a from t1 where 11=17),a) between 19 and e),17)*d),t1.b) in (select cast(avg(t1.d) AS integer) from t1 union select ~count(distinct 11) from t1) then 11 when t1.d>=t1.b then 13 else f end-t1.e FROM t1 WHERE not exists(select 1 from t1 where coalesce((select case t1.b when  -t1.c then c-17 else case f when (abs(case when ((13*case  -e when case when b>c and 11>11 then  -a when  -(t1.c)>t1.e then d else t1.d end then t1.d else t1.e end<=11)) then ~t1.b+f when (d)<=c then t1.a else (t1.a) end+b)/abs(b)) then  -b else 11 end end-19 from t1 where t1.e<=t1.b),a)>t1.a)}
+} {-514}
+do_test randexpr-2.1943 {
+  db eval {SELECT +(case when (not exists(select 1 from t1 where t1.c in (select +(abs(a)/abs( -coalesce((select max(17) from t1 where (not (c>=t1.d and t1.c>=f) and t1.e>e)),19-17))) from t1 union select case when (b)>d then d when c not in (f,t1.b,t1.d) then t1.f else t1.d end from t1) or a not in (t1.d,a, -b))) and exists(select 1 from t1 where b<11) then c when t1.c not between e and  -19 then t1.b else ~c end) FROM t1 WHERE t1.e*f-a- -13-b= -d}
+} {}
+do_test randexpr-2.1944 {
+  db eval {SELECT +(case when (not exists(select 1 from t1 where t1.c in (select +(abs(a)/abs( -coalesce((select max(17) from t1 where (not (c>=t1.d and t1.c>=f) and t1.e>e)),19-17))) from t1 union select case when (b)>d then d when c not in (f,t1.b,t1.d) then t1.f else t1.d end from t1) or a not in (t1.d,a, -b))) and exists(select 1 from t1 where b<11) then c when t1.c not between e and  -19 then t1.b else ~c end) FROM t1 WHERE NOT (t1.e*f-a- -13-b= -d)}
+} {200}
+do_test randexpr-2.1945 {
+  db eval {SELECT b-case when a not between t1.f and case when t1.d in (select count(*) from t1 union select cast(avg(coalesce((select +11*t1.e from t1 where e+b<case when 19 not in (t1.a | c,t1.a,f) then 13 when  -b<=17 then t1.e else a end),17)) AS integer) from t1) then 13 when not exists(select 1 from t1 where 13 between e and 17) or (a= -13) then t1.e else  -11 end then 11 else t1.a end FROM t1 WHERE not exists(select 1 from t1 where (e+17+t1.f)<=(case b when ~t1.f+(select +max(t1.f*case t1.b when +t1.f then t1.b else case when (not case when c=d then t1.c when t1.c<>b and t1.d between c and b then t1.d else t1.d end<t1.b) then t1.d when f<= -a then case when 17<c then a else a end else t1.e end end) from t1)*+t1.f then e else 17 end))}
+} {189}
+do_test randexpr-2.1946 {
+  db eval {SELECT b-case when a not between t1.f and case when t1.d in (select count(*) from t1 union select cast(avg(coalesce((select +11*t1.e from t1 where e+b<case when 19 not in (t1.a | c,t1.a,f) then 13 when  -b<=17 then t1.e else a end),17)) AS integer) from t1) then 13 when not exists(select 1 from t1 where 13 between e and 17) or (a= -13) then t1.e else  -11 end then 11 else t1.a end FROM t1 WHERE NOT (not exists(select 1 from t1 where (e+17+t1.f)<=(case b when ~t1.f+(select +max(t1.f*case t1.b when +t1.f then t1.b else case when (not case when c=d then t1.c when t1.c<>b and t1.d between c and b then t1.d else t1.d end<t1.b) then t1.d when f<= -a then case when 17<c then a else a end else t1.e end end) from t1)*+t1.f then e else 17 end)))}
+} {}
+do_test randexpr-2.1947 {
+  db eval {SELECT b-case when a not between t1.f and case when t1.d in (select count(*) from t1 union select cast(avg(coalesce((select +11*t1.e from t1 where e+b<case when 19 not in (t1.a & c,t1.a,f) then 13 when  -b<=17 then t1.e else a end),17)) AS integer) from t1) then 13 when not exists(select 1 from t1 where 13 between e and 17) or (a= -13) then t1.e else  -11 end then 11 else t1.a end FROM t1 WHERE not exists(select 1 from t1 where (e+17+t1.f)<=(case b when ~t1.f+(select +max(t1.f*case t1.b when +t1.f then t1.b else case when (not case when c=d then t1.c when t1.c<>b and t1.d between c and b then t1.d else t1.d end<t1.b) then t1.d when f<= -a then case when 17<c then a else a end else t1.e end end) from t1)*+t1.f then e else 17 end))}
+} {189}
+do_test randexpr-2.1948 {
+  db eval {SELECT (select (min(coalesce((select max((case when t1.f<coalesce((select max(e+case when (t1.d in (select cast(avg(b) AS integer)+count(*) from t1 union select max(13) from t1)) then e*a else c end-t1.e) from t1 where (t1.c between b and t1.f and  -t1.b between  -t1.d and  -t1.a or c in (t1.b,t1.f,(f)))),13)+t1.c*19 then f else c end)) from t1 where  -t1.b not between t1.b and t1.c),11)-19))+count(distinct t1.e) from t1) FROM t1 WHERE  - -+t1.b*(19-t1.a | e*(select abs((count(distinct  -f+t1.d-11*t1.a))) from t1))*+(abs(c)/abs(t1.c))+t1.c*(t1.a)+case when b>=t1.d and 17<=13 or f between  -t1.c and 11 then case d when t1.c then 13 else t1.e end when (11)>b then a else c end in (t1.e,a,b)}
+} {}
+do_test randexpr-2.1949 {
+  db eval {SELECT (select (min(coalesce((select max((case when t1.f<coalesce((select max(e+case when (t1.d in (select cast(avg(b) AS integer)+count(*) from t1 union select max(13) from t1)) then e*a else c end-t1.e) from t1 where (t1.c between b and t1.f and  -t1.b between  -t1.d and  -t1.a or c in (t1.b,t1.f,(f)))),13)+t1.c*19 then f else c end)) from t1 where  -t1.b not between t1.b and t1.c),11)-19))+count(distinct t1.e) from t1) FROM t1 WHERE NOT ( - -+t1.b*(19-t1.a | e*(select abs((count(distinct  -f+t1.d-11*t1.a))) from t1))*+(abs(c)/abs(t1.c))+t1.c*(t1.a)+case when b>=t1.d and 17<=13 or f between  -t1.c and 11 then case d when t1.c then 13 else t1.e end when (11)>b then a else c end in (t1.e,a,b))}
+} {582}
+do_test randexpr-2.1950 {
+  db eval {SELECT coalesce((select max((abs(e)/abs(t1.a))) from t1 where (select (count(distinct ~ - -11- -t1.a-a*t1.d | 11-19+t1.f+17*c)-cast(avg(17) AS integer)+(cast(avg((19)) AS integer))) from t1)>a),17 | 11+17)+e-(c)-d-b FROM t1 WHERE (d>t1.d-case when case +(abs(t1.d | t1.f)/abs(t1.b)) when +b then coalesce((select max(t1.d | t1.c+(11+t1.d-t1.c)) from t1 where ((t1.e=17))),17) else t1.c end>=b then a else t1.f end) and (not (e<=c)) and not (t1.c<>b)}
+} {}
+do_test randexpr-2.1951 {
+  db eval {SELECT coalesce((select max((abs(e)/abs(t1.a))) from t1 where (select (count(distinct ~ - -11- -t1.a-a*t1.d | 11-19+t1.f+17*c)-cast(avg(17) AS integer)+(cast(avg((19)) AS integer))) from t1)>a),17 | 11+17)+e-(c)-d-b FROM t1 WHERE NOT ((d>t1.d-case when case +(abs(t1.d | t1.f)/abs(t1.b)) when +b then coalesce((select max(t1.d | t1.c+(11+t1.d-t1.c)) from t1 where ((t1.e=17))),17) else t1.c end>=b then a else t1.f end) and (not (e<=c)) and not (t1.c<>b))}
+} {-371}
+do_test randexpr-2.1952 {
+  db eval {SELECT coalesce((select max((abs(e)/abs(t1.a))) from t1 where (select (count(distinct ~ - -11- -t1.a-a*t1.d & 11-19+t1.f+17*c)-cast(avg(17) AS integer)+(cast(avg((19)) AS integer))) from t1)>a),17 & 11+17)+e-(c)-d-b FROM t1 WHERE NOT ((d>t1.d-case when case +(abs(t1.d | t1.f)/abs(t1.b)) when +b then coalesce((select max(t1.d | t1.c+(11+t1.d-t1.c)) from t1 where ((t1.e=17))),17) else t1.c end>=b then a else t1.f end) and (not (e<=c)) and not (t1.c<>b))}
+} {-384}
+do_test randexpr-2.1953 {
+  db eval {SELECT coalesce((select c from t1 where case b when t1.a*(17) | case b++b when e then d else t1.b+f end+a+t1.d then d else t1.b | +e end<+~(select (count(*)) from t1)),17) FROM t1 WHERE (b+t1.c*c in (11, -t1.f,t1.b))}
+} {}
+do_test randexpr-2.1954 {
+  db eval {SELECT coalesce((select c from t1 where case b when t1.a*(17) | case b++b when e then d else t1.b+f end+a+t1.d then d else t1.b | +e end<+~(select (count(*)) from t1)),17) FROM t1 WHERE NOT ((b+t1.c*c in (11, -t1.f,t1.b)))}
+} {17}
+do_test randexpr-2.1955 {
+  db eval {SELECT coalesce((select c from t1 where case b when t1.a*(17) & case b++b when e then d else t1.b+f end+a+t1.d then d else t1.b & +e end<+~(select (count(*)) from t1)),17) FROM t1 WHERE NOT ((b+t1.c*c in (11, -t1.f,t1.b)))}
+} {17}
+do_test randexpr-2.1956 {
+  db eval {SELECT case when coalesce((select max((abs(c)/abs(t1.d))) from t1 where t1.f*case when t1.a in (select (abs(17)/abs(c))*(t1.a) from t1 union select t1.e from t1) then t1.b else b end<19),e)+a-d in (select case max(t1.b)-count(distinct t1.c) when +case abs(cast(avg(t1.f) AS integer)) when +cast(avg(f) AS integer)-min(f) then count(distinct c) else cast(avg(d) AS integer) end then count(distinct t1.a) else cast(avg(b) AS integer) end from t1 union select count(distinct t1.e) from t1) then t1.c else f end FROM t1 WHERE ((19 in (t1.b,case t1.f when 11 then 11 else  -+t1.b | 19 end+coalesce((select 11 from t1 where c<=t1.c* -e),f),t1.f)) or (b between t1.b and 17) or not exists(select 1 from t1 where  -17 between  -f and t1.e or (not b<>11) and 19 in (select 11 from t1 union select t1.b from t1))) or 13>(t1.e)}
+} {}
+do_test randexpr-2.1957 {
+  db eval {SELECT case when coalesce((select max((abs(c)/abs(t1.d))) from t1 where t1.f*case when t1.a in (select (abs(17)/abs(c))*(t1.a) from t1 union select t1.e from t1) then t1.b else b end<19),e)+a-d in (select case max(t1.b)-count(distinct t1.c) when +case abs(cast(avg(t1.f) AS integer)) when +cast(avg(f) AS integer)-min(f) then count(distinct c) else cast(avg(d) AS integer) end then count(distinct t1.a) else cast(avg(b) AS integer) end from t1 union select count(distinct t1.e) from t1) then t1.c else f end FROM t1 WHERE NOT (((19 in (t1.b,case t1.f when 11 then 11 else  -+t1.b | 19 end+coalesce((select 11 from t1 where c<=t1.c* -e),f),t1.f)) or (b between t1.b and 17) or not exists(select 1 from t1 where  -17 between  -f and t1.e or (not b<>11) and 19 in (select 11 from t1 union select t1.b from t1))) or 13>(t1.e))}
+} {300}
+do_test randexpr-2.1958 {
+  db eval {SELECT f+case when e>+11+t1.e or ~t1.a=f+t1.e+t1.c then t1.a+case when b*coalesce((select max(a) from t1 where not exists(select 1 from t1 where (t1.f=case when exists(select 1 from t1 where t1.f<b) then f when 19<13 then t1.e else f end))),coalesce((select max(11) from t1 where (t1.d) between t1.c and  - -f and d<>f),11))<(e) then t1.e else 19 end+(c) else t1.a end*c-t1.c FROM t1 WHERE not ~coalesce((select max(t1.f*coalesce((select max(f) from t1 where case 17 when e*19 then case t1.a when 17 then f else t1.c+t1.d end | (e) else ~a end>=e or not t1.b in (select a from t1 union select d from t1)),19)) from t1 where e>coalesce((select 17 from t1 where not exists(select 1 from t1 where t1.c=t1.a)),case t1.b when t1.b then a else 19 end)),13)*t1.b not between t1.e and t1.e}
+} {}
+do_test randexpr-2.1959 {
+  db eval {SELECT f+case when e>+11+t1.e or ~t1.a=f+t1.e+t1.c then t1.a+case when b*coalesce((select max(a) from t1 where not exists(select 1 from t1 where (t1.f=case when exists(select 1 from t1 where t1.f<b) then f when 19<13 then t1.e else f end))),coalesce((select max(11) from t1 where (t1.d) between t1.c and  - -f and d<>f),11))<(e) then t1.e else 19 end+(c) else t1.a end*c-t1.c FROM t1 WHERE NOT (not ~coalesce((select max(t1.f*coalesce((select max(f) from t1 where case 17 when e*19 then case t1.a when 17 then f else t1.c+t1.d end | (e) else ~a end>=e or not t1.b in (select a from t1 union select d from t1)),19)) from t1 where e>coalesce((select 17 from t1 where not exists(select 1 from t1 where t1.c=t1.a)),case t1.b when t1.b then a else 19 end)),13)*t1.b not between t1.e and t1.e)}
+} {30300}
+do_test randexpr-2.1960 {
+  db eval {SELECT e*(select  -max((case when  -case when (+(abs(f)/abs(17))*13)> -a then 17 else f end |  -t1.f-e*11<>11 then c when exists(select 1 from t1 where not exists(select 1 from t1 where t1.b not in (t1.d,19,d) and t1.d<>11)) or 13<= -t1.f then 11 else d end-t1.a)*e) from t1) FROM t1 WHERE exists(select 1 from t1 where c<>a)}
+} {-50000000}
+do_test randexpr-2.1961 {
+  db eval {SELECT e*(select  -max((case when  -case when (+(abs(f)/abs(17))*13)> -a then 17 else f end |  -t1.f-e*11<>11 then c when exists(select 1 from t1 where not exists(select 1 from t1 where t1.b not in (t1.d,19,d) and t1.d<>11)) or 13<= -t1.f then 11 else d end-t1.a)*e) from t1) FROM t1 WHERE NOT (exists(select 1 from t1 where c<>a))}
+} {}
+do_test randexpr-2.1962 {
+  db eval {SELECT e*(select  -max((case when  -case when (+(abs(f)/abs(17))*13)> -a then 17 else f end &  -t1.f-e*11<>11 then c when exists(select 1 from t1 where not exists(select 1 from t1 where t1.b not in (t1.d,19,d) and t1.d<>11)) or 13<= -t1.f then 11 else d end-t1.a)*e) from t1) FROM t1 WHERE exists(select 1 from t1 where c<>a)}
+} {-50000000}
+do_test randexpr-2.1963 {
+  db eval {SELECT a-t1.b | (case case when 13 in (t1.c,(t1.c),t1.e) then e+b when b in (select e from t1 union select d from t1) then (select count(distinct (abs(case when t1.e not between c and c then f else case t1.a when t1.c then e+t1.d else c end end)/abs(b))) from t1) else t1.b- -t1.d end when t1.c then 11 else e end- -a)+d-t1.b FROM t1 WHERE (case when f between f+(abs(coalesce((select t1.c*t1.c from t1 where f between 19 and (select count(distinct coalesce((select max(case case when t1.b<>t1.c then t1.d when 19<d then t1.c else d end | 19-17 when b then 11 else f end) from t1 where c in (select 11 from t1 union select t1.e from t1)),e)) from t1)),13))/abs(19)) and (e) then c when 17 in ((c),t1.e,f) and a in (select 19 from t1 union select t1.e from t1) then t1.f else 13 end<13)}
+} {}
+do_test randexpr-2.1964 {
+  db eval {SELECT a-t1.b | (case case when 13 in (t1.c,(t1.c),t1.e) then e+b when b in (select e from t1 union select d from t1) then (select count(distinct (abs(case when t1.e not between c and c then f else case t1.a when t1.c then e+t1.d else c end end)/abs(b))) from t1) else t1.b- -t1.d end when t1.c then 11 else e end- -a)+d-t1.b FROM t1 WHERE NOT ((case when f between f+(abs(coalesce((select t1.c*t1.c from t1 where f between 19 and (select count(distinct coalesce((select max(case case when t1.b<>t1.c then t1.d when 19<d then t1.c else d end | 19-17 when b then 11 else f end) from t1 where c in (select 11 from t1 union select t1.e from t1)),e)) from t1)),13))/abs(19)) and (e) then c when 17 in ((c),t1.e,f) and a in (select 19 from t1 union select t1.e from t1) then t1.f else 13 end<13))}
+} {-68}
+do_test randexpr-2.1965 {
+  db eval {SELECT a-t1.b & (case case when 13 in (t1.c,(t1.c),t1.e) then e+b when b in (select e from t1 union select d from t1) then (select count(distinct (abs(case when t1.e not between c and c then f else case t1.a when t1.c then e+t1.d else c end end)/abs(b))) from t1) else t1.b- -t1.d end when t1.c then 11 else e end- -a)+d-t1.b FROM t1 WHERE NOT ((case when f between f+(abs(coalesce((select t1.c*t1.c from t1 where f between 19 and (select count(distinct coalesce((select max(case case when t1.b<>t1.c then t1.d when 19<d then t1.c else d end | 19-17 when b then 11 else f end) from t1 where c in (select 11 from t1 union select t1.e from t1)),e)) from t1)),13))/abs(19)) and (e) then c when 17 in ((c),t1.e,f) and a in (select 19 from t1 union select t1.e from t1) then t1.f else 13 end<13))}
+} {768}
+do_test randexpr-2.1966 {
+  db eval {SELECT (abs(case t1.f | d when coalesce((select max(~b) from t1 where +t1.a<> -case t1.f when +b-case when (17 in (select count(distinct b)+count(distinct t1.a) from t1 union select count(distinct 13) from t1)) then d else 13 end+t1.d | d* -11+t1.d*t1.f | a-17 then 13 else c end*t1.e),d) then t1.b else d end)/abs(t1.a))*19 FROM t1 WHERE t1.f in (select count(*) from t1 union select count(*) from t1)}
+} {}
+do_test randexpr-2.1967 {
+  db eval {SELECT (abs(case t1.f | d when coalesce((select max(~b) from t1 where +t1.a<> -case t1.f when +b-case when (17 in (select count(distinct b)+count(distinct t1.a) from t1 union select count(distinct 13) from t1)) then d else 13 end+t1.d | d* -11+t1.d*t1.f | a-17 then 13 else c end*t1.e),d) then t1.b else d end)/abs(t1.a))*19 FROM t1 WHERE NOT (t1.f in (select count(*) from t1 union select count(*) from t1))}
+} {76}
+do_test randexpr-2.1968 {
+  db eval {SELECT (abs(case t1.f & d when coalesce((select max(~b) from t1 where +t1.a<> -case t1.f when +b-case when (17 in (select count(distinct b)+count(distinct t1.a) from t1 union select count(distinct 13) from t1)) then d else 13 end+t1.d & d* -11+t1.d*t1.f & a-17 then 13 else c end*t1.e),d) then t1.b else d end)/abs(t1.a))*19 FROM t1 WHERE NOT (t1.f in (select count(*) from t1 union select count(*) from t1))}
+} {76}
+do_test randexpr-2.1969 {
+  db eval {SELECT t1.d+coalesce((select max(t1.b*t1.b | ~case a | c | t1.d when t1.c then t1.a else t1.e end | e-13*b) from t1 where  -t1.a in (select e from t1 union select t1.b from t1) and not exists(select 1 from t1 where (a) in (select min(13)* -cast(avg(t1.e) AS integer)*~case count(*) when count(*) then ((cast(avg(e) AS integer))) else count(*) end | (min(t1.e)) |  -count(*) from t1 union select max(t1.a) from t1))), -t1.b)+a FROM t1 WHERE not exists(select 1 from t1 where 11*d+a>=(t1.a-e+17*(select +cast(avg((select cast(avg((abs(case when (abs(t1.a)/abs(coalesce((select max(c+t1.e) from t1 where not exists(select 1 from t1 where 13 in (select  -t1.c from t1 union select t1.f from t1))),17) | e*e)) not between e and t1.f then 19 else t1.b end)/abs(19))) AS integer)* -count(*) from t1)) AS integer)*count(distinct 11)-abs(cast(avg(b) AS integer)) from t1)))}
+} {}
+do_test randexpr-2.1970 {
+  db eval {SELECT t1.d+coalesce((select max(t1.b*t1.b | ~case a | c | t1.d when t1.c then t1.a else t1.e end | e-13*b) from t1 where  -t1.a in (select e from t1 union select t1.b from t1) and not exists(select 1 from t1 where (a) in (select min(13)* -cast(avg(t1.e) AS integer)*~case count(*) when count(*) then ((cast(avg(e) AS integer))) else count(*) end | (min(t1.e)) |  -count(*) from t1 union select max(t1.a) from t1))), -t1.b)+a FROM t1 WHERE NOT (not exists(select 1 from t1 where 11*d+a>=(t1.a-e+17*(select +cast(avg((select cast(avg((abs(case when (abs(t1.a)/abs(coalesce((select max(c+t1.e) from t1 where not exists(select 1 from t1 where 13 in (select  -t1.c from t1 union select t1.f from t1))),17) | e*e)) not between e and t1.f then 19 else t1.b end)/abs(19))) AS integer)* -count(*) from t1)) AS integer)*count(distinct 11)-abs(cast(avg(b) AS integer)) from t1))))}
+} {300}
+do_test randexpr-2.1971 {
+  db eval {SELECT t1.d+coalesce((select max(t1.b*t1.b & ~case a & c & t1.d when t1.c then t1.a else t1.e end & e-13*b) from t1 where  -t1.a in (select e from t1 union select t1.b from t1) and not exists(select 1 from t1 where (a) in (select min(13)* -cast(avg(t1.e) AS integer)*~case count(*) when count(*) then ((cast(avg(e) AS integer))) else count(*) end & (min(t1.e)) &  -count(*) from t1 union select max(t1.a) from t1))), -t1.b)+a FROM t1 WHERE NOT (not exists(select 1 from t1 where 11*d+a>=(t1.a-e+17*(select +cast(avg((select cast(avg((abs(case when (abs(t1.a)/abs(coalesce((select max(c+t1.e) from t1 where not exists(select 1 from t1 where 13 in (select  -t1.c from t1 union select t1.f from t1))),17) | e*e)) not between e and t1.f then 19 else t1.b end)/abs(19))) AS integer)* -count(*) from t1)) AS integer)*count(distinct 11)-abs(cast(avg(b) AS integer)) from t1))))}
+} {300}
+do_test randexpr-2.1972 {
+  db eval {SELECT ~case when case when +d+case b when 11 then coalesce((select max(b) from t1 where (((abs(f)/abs((abs(11)/abs(e))+t1.b))>t1.f))),(select max(t1.e) from t1)) else t1.f end*t1.f*17>=(t1.e) or 17>t1.f then t1.a else t1.a end in (c,13,c) then t1.f when t1.a not in (t1.d, -t1.b,a) then  -t1.b else 11 end FROM t1 WHERE t1.a in (+e,17,11*13) and b not between t1.f*(abs(t1.c-((abs(t1.a | coalesce((select max(case when  -f-t1.c<=t1.f then 19 when (t1.a)<>t1.f and 13 between a and t1.e then  -11 else 17 end) from t1 where c>19),f)-t1.e)/abs(e))))/abs(b))-t1.e | (19) and  -t1.a and t1.f in (select 13 from t1 union select a from t1)}
+} {}
+do_test randexpr-2.1973 {
+  db eval {SELECT ~case when case when +d+case b when 11 then coalesce((select max(b) from t1 where (((abs(f)/abs((abs(11)/abs(e))+t1.b))>t1.f))),(select max(t1.e) from t1)) else t1.f end*t1.f*17>=(t1.e) or 17>t1.f then t1.a else t1.a end in (c,13,c) then t1.f when t1.a not in (t1.d, -t1.b,a) then  -t1.b else 11 end FROM t1 WHERE NOT (t1.a in (+e,17,11*13) and b not between t1.f*(abs(t1.c-((abs(t1.a | coalesce((select max(case when  -f-t1.c<=t1.f then 19 when (t1.a)<>t1.f and 13 between a and t1.e then  -11 else 17 end) from t1 where c>19),f)-t1.e)/abs(e))))/abs(b))-t1.e | (19) and  -t1.a and t1.f in (select 13 from t1 union select a from t1))}
+} {-12}
+do_test randexpr-2.1974 {
+  db eval {SELECT case when case 17 when case when (abs(t1.c)/abs(t1.c | coalesce((select max(t1.d) from t1 where not t1.e<17 or 11 not in (t1.a,t1.c,a) or c=d and (t1.b)<f and t1.c>=t1.e and 17 in ( -t1.c,a,d) and t1.f not in (19,a,b)),11) | (select  -max(+t1.b) from t1)+19-19 | f))<>t1.a or e>17 then f else a end then 11 else f end=t1.a then f else  -t1.f end FROM t1 WHERE  -t1.b+a>= -t1.a}
+} {-600}
+do_test randexpr-2.1975 {
+  db eval {SELECT case when case 17 when case when (abs(t1.c)/abs(t1.c | coalesce((select max(t1.d) from t1 where not t1.e<17 or 11 not in (t1.a,t1.c,a) or c=d and (t1.b)<f and t1.c>=t1.e and 17 in ( -t1.c,a,d) and t1.f not in (19,a,b)),11) | (select  -max(+t1.b) from t1)+19-19 | f))<>t1.a or e>17 then f else a end then 11 else f end=t1.a then f else  -t1.f end FROM t1 WHERE NOT ( -t1.b+a>= -t1.a)}
+} {}
+do_test randexpr-2.1976 {
+  db eval {SELECT (abs(coalesce((select ((t1.c)) from t1 where not exists(select 1 from t1 where t1.e*17<13*coalesce((select max(a) from t1 where 19 in (select max(e*11) from t1 union select cast(avg(t1.b) AS integer) from t1)),a | a))),case when f-13<d+17 and not exists(select 1 from t1 where e<= -13) or a between e and d then case t1.a when t1.b then f else t1.f end when  - -t1.f<>t1.e then t1.b else f end))/abs(17)) FROM t1 WHERE ((d not between  -a and b))}
+} {17}
+do_test randexpr-2.1977 {
+  db eval {SELECT (abs(coalesce((select ((t1.c)) from t1 where not exists(select 1 from t1 where t1.e*17<13*coalesce((select max(a) from t1 where 19 in (select max(e*11) from t1 union select cast(avg(t1.b) AS integer) from t1)),a | a))),case when f-13<d+17 and not exists(select 1 from t1 where e<= -13) or a between e and d then case t1.a when t1.b then f else t1.f end when  - -t1.f<>t1.e then t1.b else f end))/abs(17)) FROM t1 WHERE NOT (((d not between  -a and b)))}
+} {}
+do_test randexpr-2.1978 {
+  db eval {SELECT (abs(coalesce((select ((t1.c)) from t1 where not exists(select 1 from t1 where t1.e*17<13*coalesce((select max(a) from t1 where 19 in (select max(e*11) from t1 union select cast(avg(t1.b) AS integer) from t1)),a & a))),case when f-13<d+17 and not exists(select 1 from t1 where e<= -13) or a between e and d then case t1.a when t1.b then f else t1.f end when  - -t1.f<>t1.e then t1.b else f end))/abs(17)) FROM t1 WHERE ((d not between  -a and b))}
+} {17}
+do_test randexpr-2.1979 {
+  db eval {SELECT case f when (d)-case when coalesce((select max(coalesce((select 11 from t1 where case when (t1.f<=17 or exists(select 1 from t1 where 11 | d in (select (abs(max(t1.f))) from t1 union select ( -min(c)) from t1))) then a when t1.f not in (e,13,13) then t1.c else e end between 19 and c),t1.a)) from t1 where f>=t1.d),17) not between e and t1.c and 11<=17 then t1.e-19 when t1.a not in (c,t1.e,t1.c) then 11 else t1.b end then t1.e else t1.f end FROM t1 WHERE (not (case 17 when d then t1.c else c end=f | (select case count(*) when count(*)++max(11)+ -(abs(+cast(avg(c) AS integer)-(~count(*))+count(*)*(~case max( -c) when  - -cast(avg(t1.f) AS integer) then (count(*)) else  -max(t1.b) end*cast(avg(a) AS integer))-count(*) | ( -( -max(11)))) | ( -min(17))+count(*)) then (max(19)) else max(t1.c) end from t1)))}
+} {600}
+do_test randexpr-2.1980 {
+  db eval {SELECT case f when (d)-case when coalesce((select max(coalesce((select 11 from t1 where case when (t1.f<=17 or exists(select 1 from t1 where 11 | d in (select (abs(max(t1.f))) from t1 union select ( -min(c)) from t1))) then a when t1.f not in (e,13,13) then t1.c else e end between 19 and c),t1.a)) from t1 where f>=t1.d),17) not between e and t1.c and 11<=17 then t1.e-19 when t1.a not in (c,t1.e,t1.c) then 11 else t1.b end then t1.e else t1.f end FROM t1 WHERE NOT ((not (case 17 when d then t1.c else c end=f | (select case count(*) when count(*)++max(11)+ -(abs(+cast(avg(c) AS integer)-(~count(*))+count(*)*(~case max( -c) when  - -cast(avg(t1.f) AS integer) then (count(*)) else  -max(t1.b) end*cast(avg(a) AS integer))-count(*) | ( -( -max(11)))) | ( -min(17))+count(*)) then (max(19)) else max(t1.c) end from t1))))}
+} {}
+do_test randexpr-2.1981 {
+  db eval {SELECT case f when (d)-case when coalesce((select max(coalesce((select 11 from t1 where case when (t1.f<=17 or exists(select 1 from t1 where 11 & d in (select (abs(max(t1.f))) from t1 union select ( -min(c)) from t1))) then a when t1.f not in (e,13,13) then t1.c else e end between 19 and c),t1.a)) from t1 where f>=t1.d),17) not between e and t1.c and 11<=17 then t1.e-19 when t1.a not in (c,t1.e,t1.c) then 11 else t1.b end then t1.e else t1.f end FROM t1 WHERE (not (case 17 when d then t1.c else c end=f | (select case count(*) when count(*)++max(11)+ -(abs(+cast(avg(c) AS integer)-(~count(*))+count(*)*(~case max( -c) when  - -cast(avg(t1.f) AS integer) then (count(*)) else  -max(t1.b) end*cast(avg(a) AS integer))-count(*) | ( -( -max(11)))) | ( -min(17))+count(*)) then (max(19)) else max(t1.c) end from t1)))}
+} {600}
+do_test randexpr-2.1982 {
+  db eval {SELECT case when d+t1.d not between t1.f and + -t1.c then ~+a+(select +count(*) from t1) else (select +abs(count(*)) from t1)-t1.a end FROM t1 WHERE t1.b+f | d+a in (select +cast(avg(b) AS integer)++case min(coalesce((select t1.c from t1 where (e) in ((a)+17,t1.b,d)),t1.f)) when ~~cast(avg(17) AS integer)-max((t1.a)) then case min(13) when count(*) then count(distinct t1.a) else cast(avg(b) AS integer) end*max(d)+max(t1.b) else  -count(*) end-count(*) from t1 union select cast(avg(t1.f) AS integer) from t1)}
+} {}
+do_test randexpr-2.1983 {
+  db eval {SELECT case when d+t1.d not between t1.f and + -t1.c then ~+a+(select +count(*) from t1) else (select +abs(count(*)) from t1)-t1.a end FROM t1 WHERE NOT (t1.b+f | d+a in (select +cast(avg(b) AS integer)++case min(coalesce((select t1.c from t1 where (e) in ((a)+17,t1.b,d)),t1.f)) when ~~cast(avg(17) AS integer)-max((t1.a)) then case min(13) when count(*) then count(distinct t1.a) else cast(avg(b) AS integer) end*max(d)+max(t1.b) else  -count(*) end-count(*) from t1 union select cast(avg(t1.f) AS integer) from t1))}
+} {-100}
+do_test randexpr-2.1984 {
+  db eval {SELECT case when case when case case when (case when (( -f<t1.a)) and a between t1.b and 17 then c else +t1.c end-f+11+e between (17) and a) then t1.d else f end+t1.e*11-11 when  -11 then 17 else f end in (select t1.d from t1 union select b from t1) then c when t1.d<=(a) then t1.e else  -f end<t1.d then a else 11 end-19*f FROM t1 WHERE t1.b in (case +t1.f | d*~(case when b not between c and e+t1.d-coalesce((select  -t1.f* -t1.c from t1 where (f in (select t1.d from t1 union select  -t1.d from t1))),t1.b) then t1.c when not exists(select 1 from t1 where a<>t1.c or exists(select 1 from t1 where not exists(select 1 from t1 where (a not between b and  -t1.e)) and t1.f>=(t1.a)) and t1.f<(t1.b)) then 19 else e end) when a then t1.e else 11 end,(a),19)}
+} {}
+do_test randexpr-2.1985 {
+  db eval {SELECT case when case when case case when (case when (( -f<t1.a)) and a between t1.b and 17 then c else +t1.c end-f+11+e between (17) and a) then t1.d else f end+t1.e*11-11 when  -11 then 17 else f end in (select t1.d from t1 union select b from t1) then c when t1.d<=(a) then t1.e else  -f end<t1.d then a else 11 end-19*f FROM t1 WHERE NOT (t1.b in (case +t1.f | d*~(case when b not between c and e+t1.d-coalesce((select  -t1.f* -t1.c from t1 where (f in (select t1.d from t1 union select  -t1.d from t1))),t1.b) then t1.c when not exists(select 1 from t1 where a<>t1.c or exists(select 1 from t1 where not exists(select 1 from t1 where (a not between b and  -t1.e)) and t1.f>=(t1.a)) and t1.f<(t1.b)) then 19 else e end) when a then t1.e else 11 end,(a),19))}
+} {-11300}
+do_test randexpr-2.1986 {
+  db eval {SELECT coalesce((select 11 from t1 where 19 in (select ((count(*)*min(11)*(abs(max(a)))-max(b)*+count(*))) from t1 union select case abs(abs(min(t1.b))*case count(distinct b) when count(distinct t1.a) then count(distinct t1.f-t1.f) else max(11) end) when cast(avg(e) AS integer) then count(*) else count(*) end from t1)),d)*11+t1.c+b | 13+19 FROM t1 WHERE t1.c in (select 19 from t1 union select ~t1.f-t1.f+17- -17 from t1)}
+} {}
+do_test randexpr-2.1987 {
+  db eval {SELECT coalesce((select 11 from t1 where 19 in (select ((count(*)*min(11)*(abs(max(a)))-max(b)*+count(*))) from t1 union select case abs(abs(min(t1.b))*case count(distinct b) when count(distinct t1.a) then count(distinct t1.f-t1.f) else max(11) end) when cast(avg(e) AS integer) then count(*) else count(*) end from t1)),d)*11+t1.c+b | 13+19 FROM t1 WHERE NOT (t1.c in (select 19 from t1 union select ~t1.f-t1.f+17- -17 from t1))}
+} {4900}
+do_test randexpr-2.1988 {
+  db eval {SELECT coalesce((select 11 from t1 where 19 in (select ((count(*)*min(11)*(abs(max(a)))-max(b)*+count(*))) from t1 union select case abs(abs(min(t1.b))*case count(distinct b) when count(distinct t1.a) then count(distinct t1.f-t1.f) else max(11) end) when cast(avg(e) AS integer) then count(*) else count(*) end from t1)),d)*11+t1.c+b & 13+19 FROM t1 WHERE NOT (t1.c in (select 19 from t1 union select ~t1.f-t1.f+17- -17 from t1))}
+} {32}
+do_test randexpr-2.1989 {
+  db eval {SELECT case f when (select ++abs(max(d))+case case count(*) when min(t1.c) then (count(*)) else min(t1.e) end when  -count(distinct t1.e) then count(distinct a) else min(t1.b) end from t1) then coalesce((select case when e in (select d from t1 union select f from t1) and t1.a not between b and 13 and d in (select 17 from t1 union select b from t1) then 17 when 11=f then 19 else d end from t1 where 11 not in (t1.c,t1.c,t1.d)),a) else e end-t1.e-t1.d-17*t1.f FROM t1 WHERE case when coalesce((select max(c) from t1 where 19 not between 11 and t1.e and t1.b in (select count(*) from t1 union select ~min(case c when (abs(case when d=( -t1.e) or t1.b<>t1.f then b else t1.b end)/abs(t1.c))+19 then t1.f else d end) from t1) and  -b in (select min(17) from t1 union select min( -c) | count(distinct 17)- -(count(*))+max(t1.c) |  -cast(avg(t1.c) AS integer) from t1)),t1.c)*t1.f not between  -t1.e and t1.f then 11 else f end>f}
+} {}
+do_test randexpr-2.1990 {
+  db eval {SELECT case f when (select ++abs(max(d))+case case count(*) when min(t1.c) then (count(*)) else min(t1.e) end when  -count(distinct t1.e) then count(distinct a) else min(t1.b) end from t1) then coalesce((select case when e in (select d from t1 union select f from t1) and t1.a not between b and 13 and d in (select 17 from t1 union select b from t1) then 17 when 11=f then 19 else d end from t1 where 11 not in (t1.c,t1.c,t1.d)),a) else e end-t1.e-t1.d-17*t1.f FROM t1 WHERE NOT (case when coalesce((select max(c) from t1 where 19 not between 11 and t1.e and t1.b in (select count(*) from t1 union select ~min(case c when (abs(case when d=( -t1.e) or t1.b<>t1.f then b else t1.b end)/abs(t1.c))+19 then t1.f else d end) from t1) and  -b in (select min(17) from t1 union select min( -c) | count(distinct 17)- -(count(*))+max(t1.c) |  -cast(avg(t1.c) AS integer) from t1)),t1.c)*t1.f not between  -t1.e and t1.f then 11 else f end>f)}
+} {-10700}
+do_test randexpr-2.1991 {
+  db eval {SELECT case when ((coalesce((select t1.a from t1 where exists(select 1 from t1 where t1.a<=t1.b-e*coalesce((select max(a) from t1 where t1.e in (select min(13+13) from t1 union select  -(count(distinct t1.f)-count(*)) from t1)),17)-f-t1.f) or t1.d in (select t1.a from t1 union select b from t1)),t1.d*t1.f)<>a)) then t1.d when not exists(select 1 from t1 where ((t1.f in (c,19,f)))) then t1.f else 17 end FROM t1 WHERE t1.c<=a}
+} {}
+do_test randexpr-2.1992 {
+  db eval {SELECT case when ((coalesce((select t1.a from t1 where exists(select 1 from t1 where t1.a<=t1.b-e*coalesce((select max(a) from t1 where t1.e in (select min(13+13) from t1 union select  -(count(distinct t1.f)-count(*)) from t1)),17)-f-t1.f) or t1.d in (select t1.a from t1 union select b from t1)),t1.d*t1.f)<>a)) then t1.d when not exists(select 1 from t1 where ((t1.f in (c,19,f)))) then t1.f else 17 end FROM t1 WHERE NOT (t1.c<=a)}
+} {400}
+do_test randexpr-2.1993 {
+  db eval {SELECT case 17 when t1.f then 11 else (case when (c between case when ~t1.e+13-t1.c+case coalesce((select t1.c from t1 where t1.a not between a and 17),coalesce((select max(case when exists(select 1 from t1 where a>=t1.a) then ((t1.e)) when t1.e>=11 then 17 else t1.b end) from t1 where ( -11<e)),a)*t1.c) when t1.f then t1.d else b end | 13<t1.d then f else t1.f end and e) then case t1.b when t1.b then  -t1.c else 17 end else t1.b end) end FROM t1 WHERE d- -coalesce((select max( -(17)+(t1.d)* -coalesce((select max(+d) from t1 where case when t1.e between 19 and t1.d then a when t1.d between t1.e and 17 then e else t1.c end+13 between a and t1.b or (c) in (select t1.b from t1 union select a from t1) or 11<>d),t1.c) | b- -17-(17)*c) from t1 where (19<13)),t1.c) not between a and t1.a}
+} {200}
+do_test randexpr-2.1994 {
+  db eval {SELECT case 17 when t1.f then 11 else (case when (c between case when ~t1.e+13-t1.c+case coalesce((select t1.c from t1 where t1.a not between a and 17),coalesce((select max(case when exists(select 1 from t1 where a>=t1.a) then ((t1.e)) when t1.e>=11 then 17 else t1.b end) from t1 where ( -11<e)),a)*t1.c) when t1.f then t1.d else b end | 13<t1.d then f else t1.f end and e) then case t1.b when t1.b then  -t1.c else 17 end else t1.b end) end FROM t1 WHERE NOT (d- -coalesce((select max( -(17)+(t1.d)* -coalesce((select max(+d) from t1 where case when t1.e between 19 and t1.d then a when t1.d between t1.e and 17 then e else t1.c end+13 between a and t1.b or (c) in (select t1.b from t1 union select a from t1) or 11<>d),t1.c) | b- -17-(17)*c) from t1 where (19<13)),t1.c) not between a and t1.a)}
+} {}
+do_test randexpr-2.1995 {
+  db eval {SELECT case 17 when t1.f then 11 else (case when (c between case when ~t1.e+13-t1.c+case coalesce((select t1.c from t1 where t1.a not between a and 17),coalesce((select max(case when exists(select 1 from t1 where a>=t1.a) then ((t1.e)) when t1.e>=11 then 17 else t1.b end) from t1 where ( -11<e)),a)*t1.c) when t1.f then t1.d else b end & 13<t1.d then f else t1.f end and e) then case t1.b when t1.b then  -t1.c else 17 end else t1.b end) end FROM t1 WHERE d- -coalesce((select max( -(17)+(t1.d)* -coalesce((select max(+d) from t1 where case when t1.e between 19 and t1.d then a when t1.d between t1.e and 17 then e else t1.c end+13 between a and t1.b or (c) in (select t1.b from t1 union select a from t1) or 11<>d),t1.c) | b- -17-(17)*c) from t1 where (19<13)),t1.c) not between a and t1.a}
+} {200}
+do_test randexpr-2.1996 {
+  db eval {SELECT 17+(select case ~max((abs(t1.c+coalesce((select max(t1.f) from t1 where t1.f in (select 13-c-case when not a>=t1.c then f else t1.c end+t1.c from t1 union select 19 from t1) or exists(select 1 from t1 where 13<t1.e)),17)*(19))/abs(b))) when ~abs( -+max(t1.a)) then +abs(cast(avg(t1.e) AS integer)) | ~abs(~cast(avg(b) AS integer)) else cast(avg(t1.f) AS integer) end from t1) | t1.d FROM t1 WHERE (case when case when 13<>17 | e*d-17*t1.e*case a when case when (not f>=19 and t1.f<=t1.b) then coalesce((select case 11 when  -c then t1.f else (t1.f) end from t1 where 13 between t1.e and t1.f),(e)) when  -t1.f not between b and d then t1.d else t1.a end then 11 else 19 end then d when a<t1.d then 19 else 11 end=t1.e then t1.a else t1.d end+f>d)}
+} {1017}
+do_test randexpr-2.1997 {
+  db eval {SELECT 17+(select case ~max((abs(t1.c+coalesce((select max(t1.f) from t1 where t1.f in (select 13-c-case when not a>=t1.c then f else t1.c end+t1.c from t1 union select 19 from t1) or exists(select 1 from t1 where 13<t1.e)),17)*(19))/abs(b))) when ~abs( -+max(t1.a)) then +abs(cast(avg(t1.e) AS integer)) | ~abs(~cast(avg(b) AS integer)) else cast(avg(t1.f) AS integer) end from t1) | t1.d FROM t1 WHERE NOT ((case when case when 13<>17 | e*d-17*t1.e*case a when case when (not f>=19 and t1.f<=t1.b) then coalesce((select case 11 when  -c then t1.f else (t1.f) end from t1 where 13 between t1.e and t1.f),(e)) when  -t1.f not between b and d then t1.d else t1.a end then 11 else 19 end then d when a<t1.d then 19 else 11 end=t1.e then t1.a else t1.d end+f>d))}
+} {}
+do_test randexpr-2.1998 {
+  db eval {SELECT 17+(select case ~max((abs(t1.c+coalesce((select max(t1.f) from t1 where t1.f in (select 13-c-case when not a>=t1.c then f else t1.c end+t1.c from t1 union select 19 from t1) or exists(select 1 from t1 where 13<t1.e)),17)*(19))/abs(b))) when ~abs( -+max(t1.a)) then +abs(cast(avg(t1.e) AS integer)) & ~abs(~cast(avg(b) AS integer)) else cast(avg(t1.f) AS integer) end from t1) & t1.d FROM t1 WHERE (case when case when 13<>17 | e*d-17*t1.e*case a when case when (not f>=19 and t1.f<=t1.b) then coalesce((select case 11 when  -c then t1.f else (t1.f) end from t1 where 13 between t1.e and t1.f),(e)) when  -t1.f not between b and d then t1.d else t1.a end then 11 else 19 end then d when a<t1.d then 19 else 11 end=t1.e then t1.a else t1.d end+f>d)}
+} {0}
+do_test randexpr-2.1999 {
+  db eval {SELECT ~c-t1.a*case  -case 19 when d then t1.f else t1.a end-d when 11 then coalesce((select max(case when (case when exists(select 1 from t1 where 11*11>13) then t1.c else 11 end)<=(select min(~d+case 19 when e then 13 else e end) from t1) then c when ((f))<=17 then d else t1.c end+t1.f) from t1 where (t1.b between  -c and t1.e)),t1.e) else 17 end FROM t1 WHERE +(abs(d-(select cast(avg((select (abs(max(t1.d*+d*( -e*(13)) | 17)+ -min(t1.d)+~ - -max(17) | max(t1.a) |  -count(distinct t1.a)-count(distinct 13)*(count(distinct t1.a)) | (count(distinct 17)))) from t1)) AS integer) from t1)-11)/abs(c+d-t1.e))>=t1.d}
+} {}
+do_test randexpr-2.2000 {
+  db eval {SELECT ~c-t1.a*case  -case 19 when d then t1.f else t1.a end-d when 11 then coalesce((select max(case when (case when exists(select 1 from t1 where 11*11>13) then t1.c else 11 end)<=(select min(~d+case 19 when e then 13 else e end) from t1) then c when ((f))<=17 then d else t1.c end+t1.f) from t1 where (t1.b between  -c and t1.e)),t1.e) else 17 end FROM t1 WHERE NOT (+(abs(d-(select cast(avg((select (abs(max(t1.d*+d*( -e*(13)) | 17)+ -min(t1.d)+~ - -max(17) | max(t1.a) |  -count(distinct t1.a)-count(distinct 13)*(count(distinct t1.a)) | (count(distinct 17)))) from t1)) AS integer) from t1)-11)/abs(c+d-t1.e))>=t1.d)}
+} {-2001}
+do_test randexpr-2.2001 {
+  db eval {SELECT coalesce((select 11 from t1 where a not in (17,e,(select  -abs(case ( -count(distinct t1.e)) when count(distinct 13) | max((abs(case 11 when  -(abs(19)/abs(17 | t1.c*t1.e))*t1.c | t1.b then a else +d end)/abs(b*t1.a))) then max(c*13) else cast(avg(t1.f) AS integer) end)-max(11) from t1)*d)),t1.d) FROM t1 WHERE 19-c*coalesce((select max(case (select count(distinct t1.f) from t1) | t1.a when case a when (abs(case when not c+t1.d>=e then 17*t1.e+a when not exists(select 1 from t1 where 11>b) then c else a end)/abs(t1.e))+t1.f*13 then 11 else t1.f end then 19 else d end-b) from t1 where (d) not between f and e),t1.d)= -c}
+} {}
+do_test randexpr-2.2002 {
+  db eval {SELECT coalesce((select 11 from t1 where a not in (17,e,(select  -abs(case ( -count(distinct t1.e)) when count(distinct 13) | max((abs(case 11 when  -(abs(19)/abs(17 | t1.c*t1.e))*t1.c | t1.b then a else +d end)/abs(b*t1.a))) then max(c*13) else cast(avg(t1.f) AS integer) end)-max(11) from t1)*d)),t1.d) FROM t1 WHERE NOT (19-c*coalesce((select max(case (select count(distinct t1.f) from t1) | t1.a when case a when (abs(case when not c+t1.d>=e then 17*t1.e+a when not exists(select 1 from t1 where 11>b) then c else a end)/abs(t1.e))+t1.f*13 then 11 else t1.f end then 19 else d end-b) from t1 where (d) not between f and e),t1.d)= -c)}
+} {11}
+do_test randexpr-2.2003 {
+  db eval {SELECT coalesce((select 11 from t1 where a not in (17,e,(select  -abs(case ( -count(distinct t1.e)) when count(distinct 13) & max((abs(case 11 when  -(abs(19)/abs(17 & t1.c*t1.e))*t1.c & t1.b then a else +d end)/abs(b*t1.a))) then max(c*13) else cast(avg(t1.f) AS integer) end)-max(11) from t1)*d)),t1.d) FROM t1 WHERE NOT (19-c*coalesce((select max(case (select count(distinct t1.f) from t1) | t1.a when case a when (abs(case when not c+t1.d>=e then 17*t1.e+a when not exists(select 1 from t1 where 11>b) then c else a end)/abs(t1.e))+t1.f*13 then 11 else t1.f end then 19 else d end-b) from t1 where (d) not between f and e),t1.d)= -c)}
+} {11}
+do_test randexpr-2.2004 {
+  db eval {SELECT 11+t1.b*~c*17-13-a+t1.d | t1.f+t1.b*coalesce((select 17 from t1 where t1.e in (select (select cast(avg(case case e when (t1.d) then 17 else (abs((abs(case when d<t1.d then b when t1.c<>19 then 19 else a end)/abs(f)))/abs((t1.e))) end when b then (11) else f end+17) AS integer) from t1) from t1 union select t1.c from t1)),(17)) FROM t1 WHERE e=11}
+} {}
+do_test randexpr-2.2005 {
+  db eval {SELECT 11+t1.b*~c*17-13-a+t1.d | t1.f+t1.b*coalesce((select 17 from t1 where t1.e in (select (select cast(avg(case case e when (t1.d) then 17 else (abs((abs(case when d<t1.d then b when t1.c<>19 then 19 else a end)/abs(f)))/abs((t1.e))) end when b then (11) else f end+17) AS integer) from t1) from t1 union select t1.c from t1)),(17)) FROM t1 WHERE NOT (e=11)}
+} {-1019998}
+do_test randexpr-2.2006 {
+  db eval {SELECT 11+t1.b*~c*17-13-a+t1.d & t1.f+t1.b*coalesce((select 17 from t1 where t1.e in (select (select cast(avg(case case e when (t1.d) then 17 else (abs((abs(case when d<t1.d then b when t1.c<>19 then 19 else a end)/abs(f)))/abs((t1.e))) end when b then (11) else f end+17) AS integer) from t1) from t1 union select t1.c from t1)),(17)) FROM t1 WHERE NOT (e=11)}
+} {896}
+do_test randexpr-2.2007 {
+  db eval {SELECT e*~~(coalesce((select +case when not exists(select 1 from t1 where 13*coalesce((select max(coalesce((select max(11) from t1 where not exists(select 1 from t1 where (select  -count(distinct 11) | min(11) from t1)>case b when b then c else d end)),13)) from t1 where  -c<>d),13)<>t1.f and 13 between 13 and 19) then b-t1.e+e else (t1.f) end from t1 where ((not not e>t1.c and c not between a and e))),t1.d)) FROM t1 WHERE exists(select 1 from t1 where case when case when e<c then  -coalesce((select max((abs(17)/abs(coalesce((select max(d) from t1 where (abs(13)/abs(t1.b)) between 11 and e),19)*f+d))*t1.f) from t1 where not exists(select 1 from t1 where 11 not in (t1.d, -t1.a,11))),t1.b)-e when (t1.c=17) then b else e end=f then d else t1.b end<=t1.d or t1.a<> -b)}
+} {200000}
+do_test randexpr-2.2008 {
+  db eval {SELECT e*~~(coalesce((select +case when not exists(select 1 from t1 where 13*coalesce((select max(coalesce((select max(11) from t1 where not exists(select 1 from t1 where (select  -count(distinct 11) | min(11) from t1)>case b when b then c else d end)),13)) from t1 where  -c<>d),13)<>t1.f and 13 between 13 and 19) then b-t1.e+e else (t1.f) end from t1 where ((not not e>t1.c and c not between a and e))),t1.d)) FROM t1 WHERE NOT (exists(select 1 from t1 where case when case when e<c then  -coalesce((select max((abs(17)/abs(coalesce((select max(d) from t1 where (abs(13)/abs(t1.b)) between 11 and e),19)*f+d))*t1.f) from t1 where not exists(select 1 from t1 where 11 not in (t1.d, -t1.a,11))),t1.b)-e when (t1.c=17) then b else e end=f then d else t1.b end<=t1.d or t1.a<> -b))}
+} {}
+do_test randexpr-2.2009 {
+  db eval {SELECT e*~~(coalesce((select +case when not exists(select 1 from t1 where 13*coalesce((select max(coalesce((select max(11) from t1 where not exists(select 1 from t1 where (select  -count(distinct 11) & min(11) from t1)>case b when b then c else d end)),13)) from t1 where  -c<>d),13)<>t1.f and 13 between 13 and 19) then b-t1.e+e else (t1.f) end from t1 where ((not not e>t1.c and c not between a and e))),t1.d)) FROM t1 WHERE exists(select 1 from t1 where case when case when e<c then  -coalesce((select max((abs(17)/abs(coalesce((select max(d) from t1 where (abs(13)/abs(t1.b)) between 11 and e),19)*f+d))*t1.f) from t1 where not exists(select 1 from t1 where 11 not in (t1.d, -t1.a,11))),t1.b)-e when (t1.c=17) then b else e end=f then d else t1.b end<=t1.d or t1.a<> -b)}
+} {200000}
+do_test randexpr-2.2010 {
+  db eval {SELECT (case t1.b-coalesce((select max(t1.f) from t1 where +t1.c=e or coalesce((select max(t1.a) from t1 where exists(select 1 from t1 where ((13-(select +cast(avg( -t1.b) AS integer) from t1) in (case f when (19) then t1.f else t1.f end,11,t1.e))))),(t1.a)+t1.e) not in (t1.f,t1.a,b) and t1.e not in (11,t1.b,t1.b)),d) when 19 then t1.e else c end-t1.e*t1.f) FROM t1 WHERE t1.e<t1.e}
+} {}
+do_test randexpr-2.2011 {
+  db eval {SELECT (case t1.b-coalesce((select max(t1.f) from t1 where +t1.c=e or coalesce((select max(t1.a) from t1 where exists(select 1 from t1 where ((13-(select +cast(avg( -t1.b) AS integer) from t1) in (case f when (19) then t1.f else t1.f end,11,t1.e))))),(t1.a)+t1.e) not in (t1.f,t1.a,b) and t1.e not in (11,t1.b,t1.b)),d) when 19 then t1.e else c end-t1.e*t1.f) FROM t1 WHERE NOT (t1.e<t1.e)}
+} {-299700}
+do_test randexpr-2.2012 {
+  db eval {SELECT t1.a+e-case when 19<+17 then case when 19 not between t1.e and t1.e then (abs(case when e+17*(select count(distinct (abs(+17)/abs(t1.c))) from t1)<>coalesce((select max(f) from t1 where 19>=b),19) then f else t1.e end-f)/abs(t1.a))-11 else t1.e end when exists(select 1 from t1 where not exists(select 1 from t1 where ((c)) not in (b,a,e))) then t1.c else ((11)) end FROM t1 WHERE (not 13 not in (17,a,e))}
+} {}
+do_test randexpr-2.2013 {
+  db eval {SELECT t1.a+e-case when 19<+17 then case when 19 not between t1.e and t1.e then (abs(case when e+17*(select count(distinct (abs(+17)/abs(t1.c))) from t1)<>coalesce((select max(f) from t1 where 19>=b),19) then f else t1.e end-f)/abs(t1.a))-11 else t1.e end when exists(select 1 from t1 where not exists(select 1 from t1 where ((c)) not in (b,a,e))) then t1.c else ((11)) end FROM t1 WHERE NOT ((not 13 not in (17,a,e)))}
+} {589}
+do_test randexpr-2.2014 {
+  db eval {SELECT case when not exists(select 1 from t1 where case when  -~(19)=t1.c then t1.f*~case when t1.f<=(select max(t1.c) from t1) then e when (c<>13) then t1.a else (b) end when t1.b between 19 and 17 then 17 else e end-e+t1.a>e or  -19 in (select max(13) from t1 union select min( -19) from t1)) then t1.b when  -11>=a then ~b else 19 end FROM t1 WHERE (c not between coalesce((select max(c) from t1 where (not t1.c<>t1.a)), -(abs(case when t1.e<=t1.c then t1.d when exists(select 1 from t1 where 17 in (select case when coalesce((select c from t1 where 17-t1.a-coalesce((select 17 from t1 where t1.f in (t1.b,19,t1.c)),17) not between e and 13),t1.b) not in (e,13,t1.a) then t1.c else b end | f from t1 union select t1.f from t1)) then t1.f else 11 end)/abs(t1.a))) and t1.e)}
+} {}
+do_test randexpr-2.2015 {
+  db eval {SELECT case when not exists(select 1 from t1 where case when  -~(19)=t1.c then t1.f*~case when t1.f<=(select max(t1.c) from t1) then e when (c<>13) then t1.a else (b) end when t1.b between 19 and 17 then 17 else e end-e+t1.a>e or  -19 in (select max(13) from t1 union select min( -19) from t1)) then t1.b when  -11>=a then ~b else 19 end FROM t1 WHERE NOT ((c not between coalesce((select max(c) from t1 where (not t1.c<>t1.a)), -(abs(case when t1.e<=t1.c then t1.d when exists(select 1 from t1 where 17 in (select case when coalesce((select c from t1 where 17-t1.a-coalesce((select 17 from t1 where t1.f in (t1.b,19,t1.c)),17) not between e and 13),t1.b) not in (e,13,t1.a) then t1.c else b end | f from t1 union select t1.f from t1)) then t1.f else 11 end)/abs(t1.a))) and t1.e))}
+} {19}
+do_test randexpr-2.2016 {
+  db eval {SELECT case t1.c | t1.b when t1.f-c then case when c<t1.c then t1.e when not t1.f in (select case when exists(select 1 from t1 where t1.e<=coalesce((select (select case count(distinct  -e*a) when ~( -min(11)) then count(*) else count(*) end from t1) from t1 where (b-d<= -t1.f)),t1.e) or exists(select 1 from t1 where t1.d>=11) or t1.c<=t1.e) then + - -b+11 else 13 end from t1 union select (t1.c) from t1) then 17 else 11 end else t1.a end FROM t1 WHERE t1.f | 13+coalesce((select max(11) from t1 where e>=(select ~case cast(avg(19*f+(c)) AS integer) when (min(c))-min(t1.a) then cast(avg(13) AS integer) else count(distinct e) end from t1)),t1.f)>=coalesce((select c from t1 where (exists(select 1 from t1 where t1.f>=f and (t1.d)<>t1.a))),c) or not exists(select 1 from t1 where not 11>=t1.d) or (b between c and 11 and 11< -t1.b and t1.e>=t1.b) or t1.c>e}
+} {100}
+do_test randexpr-2.2017 {
+  db eval {SELECT case t1.c | t1.b when t1.f-c then case when c<t1.c then t1.e when not t1.f in (select case when exists(select 1 from t1 where t1.e<=coalesce((select (select case count(distinct  -e*a) when ~( -min(11)) then count(*) else count(*) end from t1) from t1 where (b-d<= -t1.f)),t1.e) or exists(select 1 from t1 where t1.d>=11) or t1.c<=t1.e) then + - -b+11 else 13 end from t1 union select (t1.c) from t1) then 17 else 11 end else t1.a end FROM t1 WHERE NOT (t1.f | 13+coalesce((select max(11) from t1 where e>=(select ~case cast(avg(19*f+(c)) AS integer) when (min(c))-min(t1.a) then cast(avg(13) AS integer) else count(distinct e) end from t1)),t1.f)>=coalesce((select c from t1 where (exists(select 1 from t1 where t1.f>=f and (t1.d)<>t1.a))),c) or not exists(select 1 from t1 where not 11>=t1.d) or (b between c and 11 and 11< -t1.b and t1.e>=t1.b) or t1.c>e)}
+} {}
+do_test randexpr-2.2018 {
+  db eval {SELECT case t1.c & t1.b when t1.f-c then case when c<t1.c then t1.e when not t1.f in (select case when exists(select 1 from t1 where t1.e<=coalesce((select (select case count(distinct  -e*a) when ~( -min(11)) then count(*) else count(*) end from t1) from t1 where (b-d<= -t1.f)),t1.e) or exists(select 1 from t1 where t1.d>=11) or t1.c<=t1.e) then + - -b+11 else 13 end from t1 union select (t1.c) from t1) then 17 else 11 end else t1.a end FROM t1 WHERE t1.f | 13+coalesce((select max(11) from t1 where e>=(select ~case cast(avg(19*f+(c)) AS integer) when (min(c))-min(t1.a) then cast(avg(13) AS integer) else count(distinct e) end from t1)),t1.f)>=coalesce((select c from t1 where (exists(select 1 from t1 where t1.f>=f and (t1.d)<>t1.a))),c) or not exists(select 1 from t1 where not 11>=t1.d) or (b between c and 11 and 11< -t1.b and t1.e>=t1.b) or t1.c>e}
+} {100}
+do_test randexpr-2.2019 {
+  db eval {SELECT coalesce((select 19 from t1 where a<=case (abs(e)/abs(case b+f when b then t1.e else e end)) when + -t1.b+coalesce((select max(t1.f) from t1 where (19<=+e) and (c*b)>= -t1.e and (c>=c)),11+(e)+a)-t1.b then 17 else 17 end-t1.e),a) FROM t1 WHERE +d*t1.f+c+t1.c*13<>t1.e}
+} {100}
+do_test randexpr-2.2020 {
+  db eval {SELECT coalesce((select 19 from t1 where a<=case (abs(e)/abs(case b+f when b then t1.e else e end)) when + -t1.b+coalesce((select max(t1.f) from t1 where (19<=+e) and (c*b)>= -t1.e and (c>=c)),11+(e)+a)-t1.b then 17 else 17 end-t1.e),a) FROM t1 WHERE NOT (+d*t1.f+c+t1.c*13<>t1.e)}
+} {}
+do_test randexpr-2.2021 {
+  db eval {SELECT (abs(t1.e)/abs(coalesce((select +t1.a*c from t1 where (abs(e)/abs(d)) in (select +~count(*)-min(t1.d) from t1 union select abs(abs(cast(avg(t1.b) AS integer))+cast(avg(b) AS integer)) from t1)),d))) FROM t1 WHERE not b not between (select max(13) from t1) and 13}
+} {}
+do_test randexpr-2.2022 {
+  db eval {SELECT (abs(t1.e)/abs(coalesce((select +t1.a*c from t1 where (abs(e)/abs(d)) in (select +~count(*)-min(t1.d) from t1 union select abs(abs(cast(avg(t1.b) AS integer))+cast(avg(b) AS integer)) from t1)),d))) FROM t1 WHERE NOT (not b not between (select max(13) from t1) and 13)}
+} {1}
+do_test randexpr-2.2023 {
+  db eval {SELECT +(select +~(count(distinct (abs((abs(coalesce((select max(t1.c) from t1 where  -e in (select t1.e from t1 union select (e) from t1)),c)-11)/abs(19))*t1.c)/abs(19))))*count(distinct t1.a)*+count(distinct a)*count(distinct t1.d) | count(*)-max(11)+cast(avg(t1.b) AS integer)*min(t1.a) from t1)+19+t1.c*19+~coalesce((select e from t1 where 13 in (select count(distinct 17) from t1 union select count(distinct 11) from t1) or t1.f<>c),17) FROM t1 WHERE exists(select 1 from t1 where coalesce((select t1.f from t1 where t1.a in (case when exists(select 1 from t1 where b*t1.e in (select (t1.a) from t1 union select (case  -13 when f then t1.b else t1.a end) from t1)) then t1.d else 17 end,d,11)),c) not in (17,19,t1.b)) or (b) in (select abs(~~abs(count(*)) |  - -min(c)-min(11)+count(*) | max(a) | count(*)-count(distinct 11)) from t1 union select max(t1.f) from t1) or t1.b>=19}
+} {5216}
+do_test randexpr-2.2024 {
+  db eval {SELECT +(select +~(count(distinct (abs((abs(coalesce((select max(t1.c) from t1 where  -e in (select t1.e from t1 union select (e) from t1)),c)-11)/abs(19))*t1.c)/abs(19))))*count(distinct t1.a)*+count(distinct a)*count(distinct t1.d) | count(*)-max(11)+cast(avg(t1.b) AS integer)*min(t1.a) from t1)+19+t1.c*19+~coalesce((select e from t1 where 13 in (select count(distinct 17) from t1 union select count(distinct 11) from t1) or t1.f<>c),17) FROM t1 WHERE NOT (exists(select 1 from t1 where coalesce((select t1.f from t1 where t1.a in (case when exists(select 1 from t1 where b*t1.e in (select (t1.a) from t1 union select (case  -13 when f then t1.b else t1.a end) from t1)) then t1.d else 17 end,d,11)),c) not in (17,19,t1.b)) or (b) in (select abs(~~abs(count(*)) |  - -min(c)-min(11)+count(*) | max(a) | count(*)-count(distinct 11)) from t1 union select max(t1.f) from t1) or t1.b>=19)}
+} {}
+do_test randexpr-2.2025 {
+  db eval {SELECT +(select +~(count(distinct (abs((abs(coalesce((select max(t1.c) from t1 where  -e in (select t1.e from t1 union select (e) from t1)),c)-11)/abs(19))*t1.c)/abs(19))))*count(distinct t1.a)*+count(distinct a)*count(distinct t1.d) & count(*)-max(11)+cast(avg(t1.b) AS integer)*min(t1.a) from t1)+19+t1.c*19+~coalesce((select e from t1 where 13 in (select count(distinct 17) from t1 union select count(distinct 11) from t1) or t1.f<>c),17) FROM t1 WHERE exists(select 1 from t1 where coalesce((select t1.f from t1 where t1.a in (case when exists(select 1 from t1 where b*t1.e in (select (t1.a) from t1 union select (case  -13 when f then t1.b else t1.a end) from t1)) then t1.d else 17 end,d,11)),c) not in (17,19,t1.b)) or (b) in (select abs(~~abs(count(*)) |  - -min(c)-min(11)+count(*) | max(a) | count(*)-count(distinct 11)) from t1 union select max(t1.f) from t1) or t1.b>=19}
+} {25208}
+do_test randexpr-2.2026 {
+  db eval {SELECT (abs(case t1.c when ~coalesce((select max(case coalesce((select max(b) from t1 where not a<b or e*coalesce((select case t1.d when c then e else 13 end from t1 where not t1.c in (select t1.e from t1 union select 11 from t1)),(d))+c in (select +min(t1.d) from t1 union select cast(avg(13) AS integer) from t1)),e-f)*e when t1.e then t1.f else 19 end) from t1 where e>a),e) then 17 else a end)/abs(19)) FROM t1 WHERE d not in (d,d+case coalesce((select t1.e from t1 where (case when 17*case case f-+t1.c+coalesce((select t1.c from t1 where t1.d<e),t1.e) when  -t1.d then e else t1.f end when d then t1.c else  -17 end*17*b<=t1.f then b when t1.a<e then 11 else 13 end>f)),d) when t1.e then (t1.c) else  -e end,t1.f)}
+} {}
+do_test randexpr-2.2027 {
+  db eval {SELECT (abs(case t1.c when ~coalesce((select max(case coalesce((select max(b) from t1 where not a<b or e*coalesce((select case t1.d when c then e else 13 end from t1 where not t1.c in (select t1.e from t1 union select 11 from t1)),(d))+c in (select +min(t1.d) from t1 union select cast(avg(13) AS integer) from t1)),e-f)*e when t1.e then t1.f else 19 end) from t1 where e>a),e) then 17 else a end)/abs(19)) FROM t1 WHERE NOT (d not in (d,d+case coalesce((select t1.e from t1 where (case when 17*case case f-+t1.c+coalesce((select t1.c from t1 where t1.d<e),t1.e) when  -t1.d then e else t1.f end when d then t1.c else  -17 end*17*b<=t1.f then b when t1.a<e then 11 else 13 end>f)),d) when t1.e then (t1.c) else  -e end,t1.f))}
+} {5}
+do_test randexpr-2.2028 {
+  db eval {SELECT case 13 when 13 then case when 11 between case case when not 17 not between f-t1.e and (abs(19)/abs(((t1.b))))*19 then t1.a when exists(select 1 from t1 where t1.e not between d and 13) then t1.c else  -e end when t1.e then t1.c else e end and 17 then 19 when not exists(select 1 from t1 where 11=f) and exists(select 1 from t1 where d<>t1.a) or t1.f>=17 then a else t1.e end else 19 end*11 FROM t1 WHERE case 17 when t1.f then 11 else c end+d=t1.f}
+} {}
+do_test randexpr-2.2029 {
+  db eval {SELECT case 13 when 13 then case when 11 between case case when not 17 not between f-t1.e and (abs(19)/abs(((t1.b))))*19 then t1.a when exists(select 1 from t1 where t1.e not between d and 13) then t1.c else  -e end when t1.e then t1.c else e end and 17 then 19 when not exists(select 1 from t1 where 11=f) and exists(select 1 from t1 where d<>t1.a) or t1.f>=17 then a else t1.e end else 19 end*11 FROM t1 WHERE NOT (case 17 when t1.f then 11 else c end+d=t1.f)}
+} {1100}
+do_test randexpr-2.2030 {
+  db eval {SELECT coalesce((select max(b-case when exists(select 1 from t1 where case when t1.c>t1.b then t1.c*19 else coalesce((select max((abs(t1.a)/abs(~(select +max(t1.c)*max(a)*cast(avg(t1.d) AS integer) from t1)+case when e=t1.c or t1.c between e and b then +a else 13 end))) from t1 where 17=b),t1.a) end not between f and t1.c) then c else e end+ - -d-17) from t1 where t1.e<d),17) FROM t1 WHERE  -a>=(select cast(avg(d) AS integer) from t1)}
+} {}
+do_test randexpr-2.2031 {
+  db eval {SELECT coalesce((select max(b-case when exists(select 1 from t1 where case when t1.c>t1.b then t1.c*19 else coalesce((select max((abs(t1.a)/abs(~(select +max(t1.c)*max(a)*cast(avg(t1.d) AS integer) from t1)+case when e=t1.c or t1.c between e and b then +a else 13 end))) from t1 where 17=b),t1.a) end not between f and t1.c) then c else e end+ - -d-17) from t1 where t1.e<d),17) FROM t1 WHERE NOT ( -a>=(select cast(avg(d) AS integer) from t1))}
+} {17}
+do_test randexpr-2.2032 {
+  db eval {SELECT case when  -13 in (select +case when case when exists(select 1 from t1 where ~coalesce((select t1.f from t1 where exists(select 1 from t1 where t1.a not between t1.b and  -t1.e)),t1.c)+c | b not between f and t1.b) then  -11-19 else t1.d end in (select ~abs(max(19))+cast(avg(e) AS integer)-max(13)-count(*) from t1 union select min(f) from t1) then t1.f else b end+t1.e from t1 union select t1.f from t1) then b when e<t1.f then d else t1.f end+11 FROM t1 WHERE (select count(distinct +t1.e) from t1) in (select max(coalesce((select case when exists(select 1 from t1 where +19*a<>(select count(distinct d) from t1)) then t1.a when +(select cast(avg(e-19*~case 19 when t1.f then (t1.d) else t1.e end*t1.d*c) AS integer) from t1) in (e,t1.c,t1.e) then 13 else a end from t1 where d not between t1.b and f),a)) from t1 union select min((t1.b)) from t1) or (t1.e<=13)}
+} {}
+do_test randexpr-2.2033 {
+  db eval {SELECT case when  -13 in (select +case when case when exists(select 1 from t1 where ~coalesce((select t1.f from t1 where exists(select 1 from t1 where t1.a not between t1.b and  -t1.e)),t1.c)+c | b not between f and t1.b) then  -11-19 else t1.d end in (select ~abs(max(19))+cast(avg(e) AS integer)-max(13)-count(*) from t1 union select min(f) from t1) then t1.f else b end+t1.e from t1 union select t1.f from t1) then b when e<t1.f then d else t1.f end+11 FROM t1 WHERE NOT ((select count(distinct +t1.e) from t1) in (select max(coalesce((select case when exists(select 1 from t1 where +19*a<>(select count(distinct d) from t1)) then t1.a when +(select cast(avg(e-19*~case 19 when t1.f then (t1.d) else t1.e end*t1.d*c) AS integer) from t1) in (e,t1.c,t1.e) then 13 else a end from t1 where d not between t1.b and f),a)) from t1 union select min((t1.b)) from t1) or (t1.e<=13))}
+} {411}
+do_test randexpr-2.2034 {
+  db eval {SELECT case when  -13 in (select +case when case when exists(select 1 from t1 where ~coalesce((select t1.f from t1 where exists(select 1 from t1 where t1.a not between t1.b and  -t1.e)),t1.c)+c & b not between f and t1.b) then  -11-19 else t1.d end in (select ~abs(max(19))+cast(avg(e) AS integer)-max(13)-count(*) from t1 union select min(f) from t1) then t1.f else b end+t1.e from t1 union select t1.f from t1) then b when e<t1.f then d else t1.f end+11 FROM t1 WHERE NOT ((select count(distinct +t1.e) from t1) in (select max(coalesce((select case when exists(select 1 from t1 where +19*a<>(select count(distinct d) from t1)) then t1.a when +(select cast(avg(e-19*~case 19 when t1.f then (t1.d) else t1.e end*t1.d*c) AS integer) from t1) in (e,t1.c,t1.e) then 13 else a end from t1 where d not between t1.b and f),a)) from t1 union select min((t1.b)) from t1) or (t1.e<=13))}
+} {411}
+do_test randexpr-2.2035 {
+  db eval {SELECT (+coalesce((select max(c) from t1 where case when ( -t1.f between t1.a |  -a*(abs(11 | e+case when not exists(select 1 from t1 where t1.b<>f or a=t1.a) then 17*(a) else 17 end*c)/abs(c))-d+f* -e-t1.a and b) then  -11-a else t1.a end*19+b | t1.a<=t1.e),t1.b)) FROM t1 WHERE t1.e between  -case when e not in (t1.e,case when d+t1.c-b-t1.b+case when  -e<f then + -t1.c*t1.d+a*13*e when ( -t1.f<=a) then f else 13 end*t1.e-a-t1.b<(t1.e) then t1.d else t1.d end,t1.f) then f else t1.d end and t1.c}
+} {}
+do_test randexpr-2.2036 {
+  db eval {SELECT (+coalesce((select max(c) from t1 where case when ( -t1.f between t1.a |  -a*(abs(11 | e+case when not exists(select 1 from t1 where t1.b<>f or a=t1.a) then 17*(a) else 17 end*c)/abs(c))-d+f* -e-t1.a and b) then  -11-a else t1.a end*19+b | t1.a<=t1.e),t1.b)) FROM t1 WHERE NOT (t1.e between  -case when e not in (t1.e,case when d+t1.c-b-t1.b+case when  -e<f then + -t1.c*t1.d+a*13*e when ( -t1.f<=a) then f else 13 end*t1.e-a-t1.b<(t1.e) then t1.d else t1.d end,t1.f) then f else t1.d end and t1.c)}
+} {300}
+do_test randexpr-2.2037 {
+  db eval {SELECT (+coalesce((select max(c) from t1 where case when ( -t1.f between t1.a &  -a*(abs(11 & e+case when not exists(select 1 from t1 where t1.b<>f or a=t1.a) then 17*(a) else 17 end*c)/abs(c))-d+f* -e-t1.a and b) then  -11-a else t1.a end*19+b & t1.a<=t1.e),t1.b)) FROM t1 WHERE NOT (t1.e between  -case when e not in (t1.e,case when d+t1.c-b-t1.b+case when  -e<f then + -t1.c*t1.d+a*13*e when ( -t1.f<=a) then f else 13 end*t1.e-a-t1.b<(t1.e) then t1.d else t1.d end,t1.f) then f else t1.d end and t1.c)}
+} {300}
+do_test randexpr-2.2038 {
+  db eval {SELECT (select +~~ -(count(*))+max((select ~count(*)+count(distinct d)*~cast(avg(19) AS integer)+case count(*)- -abs(abs(~abs(++abs(cast(avg(t1.c) AS integer)))+count(distinct e)+count(*)))+(min(19) | ( -cast(avg(b) AS integer) |  - -(count(distinct t1.f)))) when  -count(*) then max( -b) else max((t1.d)) end from t1)) from t1) FROM t1 WHERE (abs(c)/abs((select (abs(count(*))) from t1))) not between t1.b and (select abs(count(*)* -~min(~e+case when t1.a+(a)>e then t1.d else a end+f)-case (+min(t1.f)*min(e)+cast(avg(c) AS integer))*count(*) when  - -((count(distinct f))) then max(a) else count(*) end |  -cast(avg(11) AS integer)*count(*))-count(*)*( -max(f)) from t1)}
+} {}
+do_test randexpr-2.2039 {
+  db eval {SELECT (select +~~ -(count(*))+max((select ~count(*)+count(distinct d)*~cast(avg(19) AS integer)+case count(*)- -abs(abs(~abs(++abs(cast(avg(t1.c) AS integer)))+count(distinct e)+count(*)))+(min(19) | ( -cast(avg(b) AS integer) |  - -(count(distinct t1.f)))) when  -count(*) then max( -b) else max((t1.d)) end from t1)) from t1) FROM t1 WHERE NOT ((abs(c)/abs((select (abs(count(*))) from t1))) not between t1.b and (select abs(count(*)* -~min(~e+case when t1.a+(a)>e then t1.d else a end+f)-case (+min(t1.f)*min(e)+cast(avg(c) AS integer))*count(*) when  - -((count(distinct f))) then max(a) else count(*) end |  -cast(avg(11) AS integer)*count(*))-count(*)*( -max(f)) from t1))}
+} {377}
+do_test randexpr-2.2040 {
+  db eval {SELECT (select +~~ -(count(*))+max((select ~count(*)+count(distinct d)*~cast(avg(19) AS integer)+case count(*)- -abs(abs(~abs(++abs(cast(avg(t1.c) AS integer)))+count(distinct e)+count(*)))+(min(19) & ( -cast(avg(b) AS integer) &  - -(count(distinct t1.f)))) when  -count(*) then max( -b) else max((t1.d)) end from t1)) from t1) FROM t1 WHERE NOT ((abs(c)/abs((select (abs(count(*))) from t1))) not between t1.b and (select abs(count(*)* -~min(~e+case when t1.a+(a)>e then t1.d else a end+f)-case (+min(t1.f)*min(e)+cast(avg(c) AS integer))*count(*) when  - -((count(distinct f))) then max(a) else count(*) end |  -cast(avg(11) AS integer)*count(*))-count(*)*( -max(f)) from t1))}
+} {377}
+do_test randexpr-2.2041 {
+  db eval {SELECT case when ((select abs((count(*)))+min(case 17 when b then 13 | 11+c | f else 19 end) | +count(*)- - -max(t1.d) from t1) not between 19-case when t1.c not between ~e and (e) then t1.d else t1.c end and t1.e) then t1.d when t1.d in (select  -~count(distinct t1.f)*(min(t1.b)) from t1 union select (cast(avg(17) AS integer)) from t1) then d else t1.b end FROM t1 WHERE not exists(select 1 from t1 where d in (coalesce((select max((select abs(~min(f))++~count(distinct t1.a)+cast(avg(t1.b) AS integer)*cast(avg(13) AS integer) from t1)) from t1 where exists(select 1 from t1 where not not exists(select 1 from t1 where (exists(select 1 from t1 where 11<e or t1.a not between t1.a and c)) or e<t1.f)) or t1.a not in (13,f,13)),case when t1.b>=13 then ~19*13 | t1.c+t1.e when c between t1.d and a then t1.b else t1.d end)-13,17,11))}
+} {400}
+do_test randexpr-2.2042 {
+  db eval {SELECT case when ((select abs((count(*)))+min(case 17 when b then 13 | 11+c | f else 19 end) | +count(*)- - -max(t1.d) from t1) not between 19-case when t1.c not between ~e and (e) then t1.d else t1.c end and t1.e) then t1.d when t1.d in (select  -~count(distinct t1.f)*(min(t1.b)) from t1 union select (cast(avg(17) AS integer)) from t1) then d else t1.b end FROM t1 WHERE NOT (not exists(select 1 from t1 where d in (coalesce((select max((select abs(~min(f))++~count(distinct t1.a)+cast(avg(t1.b) AS integer)*cast(avg(13) AS integer) from t1)) from t1 where exists(select 1 from t1 where not not exists(select 1 from t1 where (exists(select 1 from t1 where 11<e or t1.a not between t1.a and c)) or e<t1.f)) or t1.a not in (13,f,13)),case when t1.b>=13 then ~19*13 | t1.c+t1.e when c between t1.d and a then t1.b else t1.d end)-13,17,11)))}
+} {}
+do_test randexpr-2.2043 {
+  db eval {SELECT case when ((select abs((count(*)))+min(case 17 when b then 13 & 11+c & f else 19 end) & +count(*)- - -max(t1.d) from t1) not between 19-case when t1.c not between ~e and (e) then t1.d else t1.c end and t1.e) then t1.d when t1.d in (select  -~count(distinct t1.f)*(min(t1.b)) from t1 union select (cast(avg(17) AS integer)) from t1) then d else t1.b end FROM t1 WHERE not exists(select 1 from t1 where d in (coalesce((select max((select abs(~min(f))++~count(distinct t1.a)+cast(avg(t1.b) AS integer)*cast(avg(13) AS integer) from t1)) from t1 where exists(select 1 from t1 where not not exists(select 1 from t1 where (exists(select 1 from t1 where 11<e or t1.a not between t1.a and c)) or e<t1.f)) or t1.a not in (13,f,13)),case when t1.b>=13 then ~19*13 | t1.c+t1.e when c between t1.d and a then t1.b else t1.d end)-13,17,11))}
+} {400}
+do_test randexpr-2.2044 {
+  db eval {SELECT case when not exists(select 1 from t1 where e in (select +(count(distinct (abs(case when ((abs(coalesce((select coalesce((select case when c>f and a in (19, -e,t1.c) then +t1.a else t1.e end from t1 where c<b and f=13),13) from t1 where 11 not between t1.f and f and t1.c<=(11)),t1.e))/abs(t1.e))+17)<=c then t1.b when not exists(select 1 from t1 where t1.f in (select c from t1 union select 11 from t1)) then t1.f else 17 end)/abs(t1.e)))) from t1 union select max(t1.e) from t1)) then f else c end*t1.d FROM t1 WHERE (select max(t1.c) from t1) in (t1.f+coalesce((select max(d) from t1 where (c in (select 11*case when e=c then a else t1.f end from t1 union select b from t1)) and t1.c in (select b from t1 union select d from t1) and not exists(select 1 from t1 where t1.c in (t1.a,17,t1.b)) and t1.e=17 or c<>t1.f),(select case abs(count(distinct t1.e)-cast(avg(t1.d) AS integer)*cast(avg(t1.b) AS integer)) when min(19) then count(*) else min(c) end+count(distinct t1.c) from t1))+t1.b,t1.d, -d)}
+} {}
+do_test randexpr-2.2045 {
+  db eval {SELECT case when not exists(select 1 from t1 where e in (select +(count(distinct (abs(case when ((abs(coalesce((select coalesce((select case when c>f and a in (19, -e,t1.c) then +t1.a else t1.e end from t1 where c<b and f=13),13) from t1 where 11 not between t1.f and f and t1.c<=(11)),t1.e))/abs(t1.e))+17)<=c then t1.b when not exists(select 1 from t1 where t1.f in (select c from t1 union select 11 from t1)) then t1.f else 17 end)/abs(t1.e)))) from t1 union select max(t1.e) from t1)) then f else c end*t1.d FROM t1 WHERE NOT ((select max(t1.c) from t1) in (t1.f+coalesce((select max(d) from t1 where (c in (select 11*case when e=c then a else t1.f end from t1 union select b from t1)) and t1.c in (select b from t1 union select d from t1) and not exists(select 1 from t1 where t1.c in (t1.a,17,t1.b)) and t1.e=17 or c<>t1.f),(select case abs(count(distinct t1.e)-cast(avg(t1.d) AS integer)*cast(avg(t1.b) AS integer)) when min(19) then count(*) else min(c) end+count(distinct t1.c) from t1))+t1.b,t1.d, -d))}
+} {120000}
+do_test randexpr-2.2046 {
+  db eval {SELECT  -case when  -b=t1.c then t1.a when (select min(t1.b) from t1)<=d+coalesce((select max(11+a) from t1 where (not exists(select 1 from t1 where c |  -((case case when (t1.f between a and t1.b) then b else c end-t1.c when 19 then t1.c else f end+t1.c)+t1.b | a)-t1.c-(c)<=19))),t1.c) then e else  -t1.d end-(17) FROM t1 WHERE (t1.b | case t1.b when ((t1.e)) then (abs(19)/abs(t1.a))-coalesce((select max(t1.e*case b when a then 11 else t1.a end) from t1 where +~case when 13=17 and t1.e+11 in (select t1.f from t1 union select t1.d from t1) then t1.b when (b<17 and a>= -17) then f else  -t1.e end+(17)<=13),d) else b end | b between t1.d and t1.f)}
+} {}
+do_test randexpr-2.2047 {
+  db eval {SELECT  -case when  -b=t1.c then t1.a when (select min(t1.b) from t1)<=d+coalesce((select max(11+a) from t1 where (not exists(select 1 from t1 where c |  -((case case when (t1.f between a and t1.b) then b else c end-t1.c when 19 then t1.c else f end+t1.c)+t1.b | a)-t1.c-(c)<=19))),t1.c) then e else  -t1.d end-(17) FROM t1 WHERE NOT ((t1.b | case t1.b when ((t1.e)) then (abs(19)/abs(t1.a))-coalesce((select max(t1.e*case b when a then 11 else t1.a end) from t1 where +~case when 13=17 and t1.e+11 in (select t1.f from t1 union select t1.d from t1) then t1.b when (b<17 and a>= -17) then f else  -t1.e end+(17)<=13),d) else b end | b between t1.d and t1.f))}
+} {-517}
+do_test randexpr-2.2048 {
+  db eval {SELECT  -case when  -b=t1.c then t1.a when (select min(t1.b) from t1)<=d+coalesce((select max(11+a) from t1 where (not exists(select 1 from t1 where c &  -((case case when (t1.f between a and t1.b) then b else c end-t1.c when 19 then t1.c else f end+t1.c)+t1.b & a)-t1.c-(c)<=19))),t1.c) then e else  -t1.d end-(17) FROM t1 WHERE NOT ((t1.b | case t1.b when ((t1.e)) then (abs(19)/abs(t1.a))-coalesce((select max(t1.e*case b when a then 11 else t1.a end) from t1 where +~case when 13=17 and t1.e+11 in (select t1.f from t1 union select t1.d from t1) then t1.b when (b<17 and a>= -17) then f else  -t1.e end+(17)<=13),d) else b end | b between t1.d and t1.f))}
+} {-517}
+do_test randexpr-2.2049 {
+  db eval {SELECT case when not c<b and case when not (11 not in (c+b+t1.d- -13+e,(select  -min((case (abs(t1.a)/abs(a)) when 13 then b else  -19 end+11)) from t1),d)) and 13 in (19,t1.c,t1.e) then t1.b else 17 end<=~t1.e then +b*t1.c else t1.b end FROM t1 WHERE (abs(a)/abs(coalesce((select (e) from t1 where case when not d<=c then b else (19) end in (select ~( -(~(((count(*)))) | (count(distinct t1.e)))+min(t1.b)-(cast(avg(d) AS integer))-count(distinct b))-min(e)*max(t1.a) from t1 union select count(distinct f) from t1)),19 | t1.b)*t1.c+13)) in (select ~ -count(distinct e)*max((b)) | min(a) from t1 union select count(*) from t1)}
+} {}
+do_test randexpr-2.2050 {
+  db eval {SELECT case when not c<b and case when not (11 not in (c+b+t1.d- -13+e,(select  -min((case (abs(t1.a)/abs(a)) when 13 then b else  -19 end+11)) from t1),d)) and 13 in (19,t1.c,t1.e) then t1.b else 17 end<=~t1.e then +b*t1.c else t1.b end FROM t1 WHERE NOT ((abs(a)/abs(coalesce((select (e) from t1 where case when not d<=c then b else (19) end in (select ~( -(~(((count(*)))) | (count(distinct t1.e)))+min(t1.b)-(cast(avg(d) AS integer))-count(distinct b))-min(e)*max(t1.a) from t1 union select count(distinct f) from t1)),19 | t1.b)*t1.c+13)) in (select ~ -count(distinct e)*max((b)) | min(a) from t1 union select count(*) from t1))}
+} {200}
+do_test randexpr-2.2051 {
+  db eval {SELECT +11+~coalesce((select  -19 from t1 where exists(select 1 from t1 where f*t1.e not in ( -f*~t1.a-f*case when t1.f in ((e),coalesce((select b from t1 where b>=t1.f | t1.d),19),t1.a) then (t1.d) when  -a<=( -t1.a) then a else f end*a,13,19)) or e=17),a)*17 FROM t1 WHERE (select case min(+19) when abs((max(17)* -min(a*(abs(case e when t1.b then t1.f else  -t1.c end*f)/abs(t1.d))*e)-count(*) | max(19))) then  - -case count(distinct 11) when min(11) then max(19) else min(13) end-( -count(distinct 13)) else  -(count(distinct b)) end*cast(avg(17) AS integer)-max(e) from t1) between t1.d and coalesce((select max(13) from t1 where not 17>a-f-e),13)}
+} {}
+do_test randexpr-2.2052 {
+  db eval {SELECT +11+~coalesce((select  -19 from t1 where exists(select 1 from t1 where f*t1.e not in ( -f*~t1.a-f*case when t1.f in ((e),coalesce((select b from t1 where b>=t1.f | t1.d),19),t1.a) then (t1.d) when  -a<=( -t1.a) then a else f end*a,13,19)) or e=17),a)*17 FROM t1 WHERE NOT ((select case min(+19) when abs((max(17)* -min(a*(abs(case e when t1.b then t1.f else  -t1.c end*f)/abs(t1.d))*e)-count(*) | max(19))) then  - -case count(distinct 11) when min(11) then max(19) else min(13) end-( -count(distinct 13)) else  -(count(distinct b)) end*cast(avg(17) AS integer)-max(e) from t1) between t1.d and coalesce((select max(13) from t1 where not 17>a-f-e),13))}
+} {317}
+do_test randexpr-2.2053 {
+  db eval {SELECT +11+~coalesce((select  -19 from t1 where exists(select 1 from t1 where f*t1.e not in ( -f*~t1.a-f*case when t1.f in ((e),coalesce((select b from t1 where b>=t1.f & t1.d),19),t1.a) then (t1.d) when  -a<=( -t1.a) then a else f end*a,13,19)) or e=17),a)*17 FROM t1 WHERE NOT ((select case min(+19) when abs((max(17)* -min(a*(abs(case e when t1.b then t1.f else  -t1.c end*f)/abs(t1.d))*e)-count(*) | max(19))) then  - -case count(distinct 11) when min(11) then max(19) else min(13) end-( -count(distinct 13)) else  -(count(distinct b)) end*cast(avg(17) AS integer)-max(e) from t1) between t1.d and coalesce((select max(13) from t1 where not 17>a-f-e),13))}
+} {317}
+do_test randexpr-2.2054 {
+  db eval {SELECT coalesce((select 11 from t1 where (b-case (select count(distinct t1.f*e) from t1) when t1.f | 11 | 11*coalesce((select 19 from t1 where (~coalesce((select f from t1 where (t1.c>17)),a)+t1.c not between f and t1.e or 19>=c)),(t1.d)) then a else t1.f end>=f and exists(select 1 from t1 where 13<>c) or  - -t1.f<t1.f)),13) FROM t1 WHERE a not in (f,t1.e,11)}
+} {13}
+do_test randexpr-2.2055 {
+  db eval {SELECT coalesce((select 11 from t1 where (b-case (select count(distinct t1.f*e) from t1) when t1.f | 11 | 11*coalesce((select 19 from t1 where (~coalesce((select f from t1 where (t1.c>17)),a)+t1.c not between f and t1.e or 19>=c)),(t1.d)) then a else t1.f end>=f and exists(select 1 from t1 where 13<>c) or  - -t1.f<t1.f)),13) FROM t1 WHERE NOT (a not in (f,t1.e,11))}
+} {}
+do_test randexpr-2.2056 {
+  db eval {SELECT coalesce((select 11 from t1 where (b-case (select count(distinct t1.f*e) from t1) when t1.f & 11 & 11*coalesce((select 19 from t1 where (~coalesce((select f from t1 where (t1.c>17)),a)+t1.c not between f and t1.e or 19>=c)),(t1.d)) then a else t1.f end>=f and exists(select 1 from t1 where 13<>c) or  - -t1.f<t1.f)),13) FROM t1 WHERE a not in (f,t1.e,11)}
+} {13}
+do_test randexpr-2.2057 {
+  db eval {SELECT (abs(coalesce((select max(t1.e) from t1 where c>coalesce((select max(coalesce((select t1.e from t1 where not (abs(a+t1.e*c | case when t1.b in (select  -max(t1.b)*cast(avg(19) AS integer) from t1 union select  -max(13) from t1) then t1.f else 19 end-f+(19)+19)/abs(t1.e)) in (d,13,e) or t1.e<=t1.e),t1.b-17)) from t1 where  -11<>17 or e in (select max(19) from t1 union select (cast(avg(f) AS integer)) from t1)),a)),17))/abs(t1.e)) FROM t1 WHERE t1.e<>13 | (t1.f)+c-((13))-~13 | (abs(e)/abs(coalesce((select max(t1.c) from t1 where (d)<=t1.d),case when (exists(select 1 from t1 where not exists(select 1 from t1 where (abs(17)/abs(t1.d))>coalesce((select max(a) from t1 where t1.c not between t1.f and t1.f and f not in (t1.f, -t1.c,13)),t1.c)))) then c else 19 end))) | t1.a*11* -e*t1.c or not exists(select 1 from t1 where f>c)}
+} {0}
+do_test randexpr-2.2058 {
+  db eval {SELECT (abs(coalesce((select max(t1.e) from t1 where c>coalesce((select max(coalesce((select t1.e from t1 where not (abs(a+t1.e*c | case when t1.b in (select  -max(t1.b)*cast(avg(19) AS integer) from t1 union select  -max(13) from t1) then t1.f else 19 end-f+(19)+19)/abs(t1.e)) in (d,13,e) or t1.e<=t1.e),t1.b-17)) from t1 where  -11<>17 or e in (select max(19) from t1 union select (cast(avg(f) AS integer)) from t1)),a)),17))/abs(t1.e)) FROM t1 WHERE NOT (t1.e<>13 | (t1.f)+c-((13))-~13 | (abs(e)/abs(coalesce((select max(t1.c) from t1 where (d)<=t1.d),case when (exists(select 1 from t1 where not exists(select 1 from t1 where (abs(17)/abs(t1.d))>coalesce((select max(a) from t1 where t1.c not between t1.f and t1.f and f not in (t1.f, -t1.c,13)),t1.c)))) then c else 19 end))) | t1.a*11* -e*t1.c or not exists(select 1 from t1 where f>c))}
+} {}
+do_test randexpr-2.2059 {
+  db eval {SELECT (abs(coalesce((select max(t1.e) from t1 where c>coalesce((select max(coalesce((select t1.e from t1 where not (abs(a+t1.e*c & case when t1.b in (select  -max(t1.b)*cast(avg(19) AS integer) from t1 union select  -max(13) from t1) then t1.f else 19 end-f+(19)+19)/abs(t1.e)) in (d,13,e) or t1.e<=t1.e),t1.b-17)) from t1 where  -11<>17 or e in (select max(19) from t1 union select (cast(avg(f) AS integer)) from t1)),a)),17))/abs(t1.e)) FROM t1 WHERE t1.e<>13 | (t1.f)+c-((13))-~13 | (abs(e)/abs(coalesce((select max(t1.c) from t1 where (d)<=t1.d),case when (exists(select 1 from t1 where not exists(select 1 from t1 where (abs(17)/abs(t1.d))>coalesce((select max(a) from t1 where t1.c not between t1.f and t1.f and f not in (t1.f, -t1.c,13)),t1.c)))) then c else 19 end))) | t1.a*11* -e*t1.c or not exists(select 1 from t1 where f>c)}
+} {0}
+do_test randexpr-2.2060 {
+  db eval {SELECT case t1.e when a then case when not exists(select 1 from t1 where (abs(~coalesce((select c from t1 where (case when not case when a between t1.b and t1.a then t1.c when  -17 not in (11,t1.d,11) then a else t1.a end in (select count(distinct t1.a)+count(distinct t1.a) from t1 union select count(*) from t1) then t1.c when t1.b<(11) then f else a end>=11 and (t1.f)=11)),+11))/abs(e)) not between 17 and  -t1.a) or c not between 19 and t1.b then t1.c when t1.e<t1.a then  -e*t1.d else 17 end | t1.e else t1.b end FROM t1 WHERE f+17<=17}
+} {}
+do_test randexpr-2.2061 {
+  db eval {SELECT case t1.e when a then case when not exists(select 1 from t1 where (abs(~coalesce((select c from t1 where (case when not case when a between t1.b and t1.a then t1.c when  -17 not in (11,t1.d,11) then a else t1.a end in (select count(distinct t1.a)+count(distinct t1.a) from t1 union select count(*) from t1) then t1.c when t1.b<(11) then f else a end>=11 and (t1.f)=11)),+11))/abs(e)) not between 17 and  -t1.a) or c not between 19 and t1.b then t1.c when t1.e<t1.a then  -e*t1.d else 17 end | t1.e else t1.b end FROM t1 WHERE NOT (f+17<=17)}
+} {200}
+do_test randexpr-2.2062 {
+  db eval {SELECT case t1.e when a then case when not exists(select 1 from t1 where (abs(~coalesce((select c from t1 where (case when not case when a between t1.b and t1.a then t1.c when  -17 not in (11,t1.d,11) then a else t1.a end in (select count(distinct t1.a)+count(distinct t1.a) from t1 union select count(*) from t1) then t1.c when t1.b<(11) then f else a end>=11 and (t1.f)=11)),+11))/abs(e)) not between 17 and  -t1.a) or c not between 19 and t1.b then t1.c when t1.e<t1.a then  -e*t1.d else 17 end & t1.e else t1.b end FROM t1 WHERE NOT (f+17<=17)}
+} {200}
+do_test randexpr-2.2063 {
+  db eval {SELECT ~~coalesce((select t1.a from t1 where case f*+e when ~11-coalesce((select max(t1.f) from t1 where t1.f>b),~case when b between 17 and e | coalesce((select max(a) from t1 where (f in (t1.b,f,a))),13) then f when  -d<=d then t1.e else e end+13)+13 then d else d end+t1.f=d),b)+b FROM t1 WHERE b=b}
+} {400}
+do_test randexpr-2.2064 {
+  db eval {SELECT ~~coalesce((select t1.a from t1 where case f*+e when ~11-coalesce((select max(t1.f) from t1 where t1.f>b),~case when b between 17 and e | coalesce((select max(a) from t1 where (f in (t1.b,f,a))),13) then f when  -d<=d then t1.e else e end+13)+13 then d else d end+t1.f=d),b)+b FROM t1 WHERE NOT (b=b)}
+} {}
+do_test randexpr-2.2065 {
+  db eval {SELECT ~~coalesce((select t1.a from t1 where case f*+e when ~11-coalesce((select max(t1.f) from t1 where t1.f>b),~case when b between 17 and e & coalesce((select max(a) from t1 where (f in (t1.b,f,a))),13) then f when  -d<=d then t1.e else e end+13)+13 then d else d end+t1.f=d),b)+b FROM t1 WHERE b=b}
+} {400}
+do_test randexpr-2.2066 {
+  db eval {SELECT e | t1.e*case d when t1.e then a else case when t1.a<= -~+e then b else 17-t1.e end*c*f+case when case when +c in (select +min(11) from t1 union select cast(avg(f) AS integer) from t1) and b between c and t1.f then 11+t1.a when f>=c then d else t1.c end<t1.c and t1.d between t1.a and t1.e then 19 when t1.a<=t1.c then t1.d else f end end FROM t1 WHERE 13 in (select case when ++(select abs(max((select count(*) from t1)+~13)) from t1)*11 not in ((d*~19),(abs(f)/abs(t1.b)),case when not exists(select 1 from t1 where b<=e+t1.d) then b*f when d in (select min(t1.d) from t1 union select min(e) from t1) then 19 else f end*a) then t1.c else  -c end from t1 union select t1.a from t1) or f<c}
+} {}
+do_test randexpr-2.2067 {
+  db eval {SELECT e | t1.e*case d when t1.e then a else case when t1.a<= -~+e then b else 17-t1.e end*c*f+case when case when +c in (select +min(11) from t1 union select cast(avg(f) AS integer) from t1) and b between c and t1.f then 11+t1.a when f>=c then d else t1.c end<t1.c and t1.d between t1.a and t1.e then 19 when t1.a<=t1.c then t1.d else f end end FROM t1 WHERE NOT (13 in (select case when ++(select abs(max((select count(*) from t1)+~13)) from t1)*11 not in ((d*~19),(abs(f)/abs(t1.b)),case when not exists(select 1 from t1 where b<=e+t1.d) then b*f when d in (select min(t1.d) from t1 union select min(e) from t1) then 19 else f end*a) then t1.c else  -c end from t1 union select t1.a from t1) or f<c)}
+} {18000200180}
+do_test randexpr-2.2068 {
+  db eval {SELECT e & t1.e*case d when t1.e then a else case when t1.a<= -~+e then b else 17-t1.e end*c*f+case when case when +c in (select +min(11) from t1 union select cast(avg(f) AS integer) from t1) and b between c and t1.f then 11+t1.a when f>=c then d else t1.c end<t1.c and t1.d between t1.a and t1.e then 19 when t1.a<=t1.c then t1.d else f end end FROM t1 WHERE NOT (13 in (select case when ++(select abs(max((select count(*) from t1)+~13)) from t1)*11 not in ((d*~19),(abs(f)/abs(t1.b)),case when not exists(select 1 from t1 where b<=e+t1.d) then b*f when d in (select min(t1.d) from t1 union select min(e) from t1) then 19 else f end*a) then t1.c else  -c end from t1 union select t1.a from t1) or f<c)}
+} {320}
+do_test randexpr-2.2069 {
+  db eval {SELECT coalesce((select  -(select min(f)-+min(f)*~case +cast(avg(t1.e) AS integer) when max(13)-abs( -max(a)) then +count(distinct a) | abs(max( -c+13)) else (count(*)) end from t1) from t1 where t1.a<>t1.e), -t1.d) FROM t1 WHERE t1.b between coalesce((select (coalesce((select max(case when case when not exists(select 1 from t1 where (17) not in (13,case when 19 not in (19,t1.f,t1.e) and b>=t1.a then e when b<=t1.c then 11 else b end,11)) then c | t1.a else 17 end | 19 in (c,t1.b,d) then t1.a else t1.a end | t1.c) from t1 where not exists(select 1 from t1 where t1.a<=t1.e)),t1.c)) from t1 where t1.d<=t1.a),17)*c-11 and d}
+} {}
+do_test randexpr-2.2070 {
+  db eval {SELECT coalesce((select  -(select min(f)-+min(f)*~case +cast(avg(t1.e) AS integer) when max(13)-abs( -max(a)) then +count(distinct a) | abs(max( -c+13)) else (count(*)) end from t1) from t1 where t1.a<>t1.e), -t1.d) FROM t1 WHERE NOT (t1.b between coalesce((select (coalesce((select max(case when case when not exists(select 1 from t1 where (17) not in (13,case when 19 not in (19,t1.f,t1.e) and b>=t1.a then e when b<=t1.c then 11 else b end,11)) then c | t1.a else 17 end | 19 in (c,t1.b,d) then t1.a else t1.a end | t1.c) from t1 where not exists(select 1 from t1 where t1.a<=t1.e)),t1.c)) from t1 where t1.d<=t1.a),17)*c-11 and d)}
+} {-1800}
+do_test randexpr-2.2071 {
+  db eval {SELECT coalesce((select  -(select min(f)-+min(f)*~case +cast(avg(t1.e) AS integer) when max(13)-abs( -max(a)) then +count(distinct a) & abs(max( -c+13)) else (count(*)) end from t1) from t1 where t1.a<>t1.e), -t1.d) FROM t1 WHERE NOT (t1.b between coalesce((select (coalesce((select max(case when case when not exists(select 1 from t1 where (17) not in (13,case when 19 not in (19,t1.f,t1.e) and b>=t1.a then e when b<=t1.c then 11 else b end,11)) then c | t1.a else 17 end | 19 in (c,t1.b,d) then t1.a else t1.a end | t1.c) from t1 where not exists(select 1 from t1 where t1.a<=t1.e)),t1.c)) from t1 where t1.d<=t1.a),17)*c-11 and d)}
+} {-1800}
+do_test randexpr-2.2072 {
+  db eval {SELECT coalesce((select c from t1 where case when +case when not 11 | c not in (11,case when 13> -d then e when a>t1.c then 17 else t1.e end,t1.b) then t1.d when c<>t1.a then t1.b else 19 end-b>=17 or 11<t1.c then case when not exists(select 1 from t1 where not exists(select 1 from t1 where t1.f<t1.c)) then t1.f when not exists(select 1 from t1 where 19 not in (t1.d,t1.b,t1.a)) then t1.c else t1.a end else  - -f end>=19 and b<=e),d) FROM t1 WHERE (+a*t1.a+(19-(abs(case  -c when d then (abs(f)/abs(case t1.a when 19 then b else +~( -case t1.f*t1.a | 17 when  -t1.a then d else (t1.e) end*d)+t1.a-a end)) else 13 end)/abs(11))*t1.c)+17-d not in (11,a,b))}
+} {300}
+do_test randexpr-2.2073 {
+  db eval {SELECT coalesce((select c from t1 where case when +case when not 11 | c not in (11,case when 13> -d then e when a>t1.c then 17 else t1.e end,t1.b) then t1.d when c<>t1.a then t1.b else 19 end-b>=17 or 11<t1.c then case when not exists(select 1 from t1 where not exists(select 1 from t1 where t1.f<t1.c)) then t1.f when not exists(select 1 from t1 where 19 not in (t1.d,t1.b,t1.a)) then t1.c else t1.a end else  - -f end>=19 and b<=e),d) FROM t1 WHERE NOT ((+a*t1.a+(19-(abs(case  -c when d then (abs(f)/abs(case t1.a when 19 then b else +~( -case t1.f*t1.a | 17 when  -t1.a then d else (t1.e) end*d)+t1.a-a end)) else 13 end)/abs(11))*t1.c)+17-d not in (11,a,b)))}
+} {}
+do_test randexpr-2.2074 {
+  db eval {SELECT coalesce((select c from t1 where case when +case when not 11 & c not in (11,case when 13> -d then e when a>t1.c then 17 else t1.e end,t1.b) then t1.d when c<>t1.a then t1.b else 19 end-b>=17 or 11<t1.c then case when not exists(select 1 from t1 where not exists(select 1 from t1 where t1.f<t1.c)) then t1.f when not exists(select 1 from t1 where 19 not in (t1.d,t1.b,t1.a)) then t1.c else t1.a end else  - -f end>=19 and b<=e),d) FROM t1 WHERE (+a*t1.a+(19-(abs(case  -c when d then (abs(f)/abs(case t1.a when 19 then b else +~( -case t1.f*t1.a | 17 when  -t1.a then d else (t1.e) end*d)+t1.a-a end)) else 13 end)/abs(11))*t1.c)+17-d not in (11,a,b))}
+} {300}
+do_test randexpr-2.2075 {
+  db eval {SELECT case 17 when t1.c then t1.c*f | t1.b+t1.d+b+c-t1.e+t1.c+t1.c-t1.c*t1.f else case when t1.f+case when (abs(t1.a-coalesce((select a from t1 where (t1.c) in (t1.c,d,19)), -t1.a))/abs(f)) between t1.c and a then  -(t1.b) else b end not in (11, -t1.d,t1.d) then t1.d else d end end FROM t1 WHERE ~17 between (select  -count(distinct b+b)++max(t1.b)*(~(max(t1.d)))-abs(cast(avg(17) AS integer)*count(*))-max(f) | count(distinct t1.a)-count(distinct 13)-cast(avg(c) AS integer) from t1) and c-case when f<>t1.e then (abs(~(a)+e+t1.a | t1.a)/abs(t1.c)) else 13 end- -t1.e}
+} {400}
+do_test randexpr-2.2076 {
+  db eval {SELECT case 17 when t1.c then t1.c*f | t1.b+t1.d+b+c-t1.e+t1.c+t1.c-t1.c*t1.f else case when t1.f+case when (abs(t1.a-coalesce((select a from t1 where (t1.c) in (t1.c,d,19)), -t1.a))/abs(f)) between t1.c and a then  -(t1.b) else b end not in (11, -t1.d,t1.d) then t1.d else d end end FROM t1 WHERE NOT (~17 between (select  -count(distinct b+b)++max(t1.b)*(~(max(t1.d)))-abs(cast(avg(17) AS integer)*count(*))-max(f) | count(distinct t1.a)-count(distinct 13)-cast(avg(c) AS integer) from t1) and c-case when f<>t1.e then (abs(~(a)+e+t1.a | t1.a)/abs(t1.c)) else 13 end- -t1.e)}
+} {}
+do_test randexpr-2.2077 {
+  db eval {SELECT case 17 when t1.c then t1.c*f & t1.b+t1.d+b+c-t1.e+t1.c+t1.c-t1.c*t1.f else case when t1.f+case when (abs(t1.a-coalesce((select a from t1 where (t1.c) in (t1.c,d,19)), -t1.a))/abs(f)) between t1.c and a then  -(t1.b) else b end not in (11, -t1.d,t1.d) then t1.d else d end end FROM t1 WHERE ~17 between (select  -count(distinct b+b)++max(t1.b)*(~(max(t1.d)))-abs(cast(avg(17) AS integer)*count(*))-max(f) | count(distinct t1.a)-count(distinct 13)-cast(avg(c) AS integer) from t1) and c-case when f<>t1.e then (abs(~(a)+e+t1.a | t1.a)/abs(t1.c)) else 13 end- -t1.e}
+} {400}
+do_test randexpr-2.2078 {
+  db eval {SELECT (select cast(avg(coalesce((select max(coalesce((select e from t1 where not ((coalesce((select b from t1 where coalesce((select max(11) from t1 where exists(select 1 from t1 where (a in (select count(*)+max(((t1.a))) from t1 union select cast(avg(a) AS integer) from t1)))),b)<=19), -b))*f<t1.b and not exists(select 1 from t1 where d>=t1.e) and 17<>11 and e in (t1.f,f,17)) or a not between  -a and (17)),+~b)-17*b) from t1 where t1.b>=b),t1.a)) AS integer) from t1) FROM t1 WHERE f in (select cast(avg(t1.e-f-t1.e) AS integer)+min(t1.d) from t1 union select max(case b when 11 then case case when f in (a,a,f) then t1.b when (t1.f)>d then  -19 else t1.a end when 11 then a else t1.e end else (t1.b) end*a)*cast(avg(a) AS integer)+ -+cast(avg(t1.e) AS integer)*case cast(avg(t1.e) AS integer) when (cast(avg( -t1.a) AS integer)) then count(*) else count(*) end*min(t1.d)*min(e) from t1) and (a between d and t1.f)}
+} {}
+do_test randexpr-2.2079 {
+  db eval {SELECT (select cast(avg(coalesce((select max(coalesce((select e from t1 where not ((coalesce((select b from t1 where coalesce((select max(11) from t1 where exists(select 1 from t1 where (a in (select count(*)+max(((t1.a))) from t1 union select cast(avg(a) AS integer) from t1)))),b)<=19), -b))*f<t1.b and not exists(select 1 from t1 where d>=t1.e) and 17<>11 and e in (t1.f,f,17)) or a not between  -a and (17)),+~b)-17*b) from t1 where t1.b>=b),t1.a)) AS integer) from t1) FROM t1 WHERE NOT (f in (select cast(avg(t1.e-f-t1.e) AS integer)+min(t1.d) from t1 union select max(case b when 11 then case case when f in (a,a,f) then t1.b when (t1.f)>d then  -19 else t1.a end when 11 then a else t1.e end else (t1.b) end*a)*cast(avg(a) AS integer)+ -+cast(avg(t1.e) AS integer)*case cast(avg(t1.e) AS integer) when (cast(avg( -t1.a) AS integer)) then count(*) else count(*) end*min(t1.d)*min(e) from t1) and (a between d and t1.f))}
+} {-2900}
+do_test randexpr-2.2080 {
+  db eval {SELECT case when coalesce((select max(coalesce((select max((select min(13) from t1)*d*case when not 19<>(t1.c)-d then 11 else 17 end) from t1 where 13<t1.f and t1.e not between (t1.a) and d),c)) from t1 where t1.d between (d) and 19 or t1.c in (t1.f,(11),17)), -11)>=t1.e then t1.d when not exists(select 1 from t1 where t1.c in (select (count(*)) from t1 union select +count(*) from t1)) then t1.c else 19 end FROM t1 WHERE ((11>=11))}
+} {300}
+do_test randexpr-2.2081 {
+  db eval {SELECT case when coalesce((select max(coalesce((select max((select min(13) from t1)*d*case when not 19<>(t1.c)-d then 11 else 17 end) from t1 where 13<t1.f and t1.e not between (t1.a) and d),c)) from t1 where t1.d between (d) and 19 or t1.c in (t1.f,(11),17)), -11)>=t1.e then t1.d when not exists(select 1 from t1 where t1.c in (select (count(*)) from t1 union select +count(*) from t1)) then t1.c else 19 end FROM t1 WHERE NOT (((11>=11)))}
+} {}
+do_test randexpr-2.2082 {
+  db eval {SELECT  -case when 19 in (select abs((count(*))) from t1 union select abs(min(t1.f)*min(e*e)) from t1) and case when not not (17>a) or d>=c and (19)<=t1.b and  - -t1.f<>t1.f then f when t1.b between d and t1.f then case when t1.e=e then coalesce((select max(d) from t1 where t1.b>=b),a) when t1.a not between c and e then e else 13 end else (17) end>t1.d then b else b end+t1.b-a FROM t1 WHERE exists(select 1 from t1 where +coalesce((select 19 from t1 where not exists(select 1 from t1 where exists(select 1 from t1 where case when (select max(11-(select +count(distinct +case + -coalesce((select t1.d from t1 where exists(select 1 from t1 where (b)>t1.c)),t1.f)*11 when  -a then 19 else 19 end) from t1)) from t1)<=t1.d-c then f when exists(select 1 from t1 where t1.f not between b and a) then  -d else t1.d end not in (t1.b,t1.e, -t1.f)))),f) not in (f,e,13))}
+} {}
+do_test randexpr-2.2083 {
+  db eval {SELECT  -case when 19 in (select abs((count(*))) from t1 union select abs(min(t1.f)*min(e*e)) from t1) and case when not not (17>a) or d>=c and (19)<=t1.b and  - -t1.f<>t1.f then f when t1.b between d and t1.f then case when t1.e=e then coalesce((select max(d) from t1 where t1.b>=b),a) when t1.a not between c and e then e else 13 end else (17) end>t1.d then b else b end+t1.b-a FROM t1 WHERE NOT (exists(select 1 from t1 where +coalesce((select 19 from t1 where not exists(select 1 from t1 where exists(select 1 from t1 where case when (select max(11-(select +count(distinct +case + -coalesce((select t1.d from t1 where exists(select 1 from t1 where (b)>t1.c)),t1.f)*11 when  -a then 19 else 19 end) from t1)) from t1)<=t1.d-c then f when exists(select 1 from t1 where t1.f not between b and a) then  -d else t1.d end not in (t1.b,t1.e, -t1.f)))),f) not in (f,e,13)))}
+} {-100}
+do_test randexpr-2.2084 {
+  db eval {SELECT coalesce((select max(b) from t1 where d not between a-t1.e and a),coalesce((select max(t1.c) from t1 where exists(select 1 from t1 where t1.e<t1.a)),e)+19) FROM t1 WHERE +case f when case  -~c-case when d=17 then t1.c*(select abs(case (cast(avg(19) AS integer)) when ( -count(*)) then min(19) else count(*) end*min(a)) from t1) when b* -(e)-t1.b in (select max(19) | max(t1.c) from t1 union select max(17) from t1) then c else a end when  -f then 13 else 19 end then t1.d else t1.c end<>e or 11 between b and 13}
+} {200}
+do_test randexpr-2.2085 {
+  db eval {SELECT coalesce((select max(b) from t1 where d not between a-t1.e and a),coalesce((select max(t1.c) from t1 where exists(select 1 from t1 where t1.e<t1.a)),e)+19) FROM t1 WHERE NOT (+case f when case  -~c-case when d=17 then t1.c*(select abs(case (cast(avg(19) AS integer)) when ( -count(*)) then min(19) else count(*) end*min(a)) from t1) when b* -(e)-t1.b in (select max(19) | max(t1.c) from t1 union select max(17) from t1) then c else a end when  -f then 13 else 19 end then t1.d else t1.c end<>e or 11 between b and 13)}
+} {}
+do_test randexpr-2.2086 {
+  db eval {SELECT (select case count(*) when ~(case case  -abs(count(*) | (case case ~case  -count(distinct case when t1.a< -t1.d then b when 19 in (t1.e, - -19,t1.b) then t1.c else t1.f end)-count(distinct (t1.f)) when count(*) then max(c) else count(distinct 17) end when count(*) then ((cast(avg(b) AS integer))) else  -count(*) end when  -count(distinct t1.f) then count(distinct t1.a) else count(distinct t1.e) end))+count(*) when cast(avg(19) AS integer) then  -min( -t1.c) else count(*) end when (min(t1.e)) then cast(avg(c) AS integer) else min(t1.f) end) then min(e) else count(*) end | max(11) from t1)+19 FROM t1 WHERE case when (((d not between (+t1.a-coalesce((select max(b*t1.b* -t1.f) from t1 where a>a),13)) and a)) and c>=d or f<c) then coalesce((select (abs(17)/abs(13))*e from t1 where f in (t1.a,13,t1.b) and (t1.c)<>e and t1.c< -11 and f<>b or t1.b<17),c) else t1.a end>=11}
+} {30}
+do_test randexpr-2.2087 {
+  db eval {SELECT (select case count(*) when ~(case case  -abs(count(*) | (case case ~case  -count(distinct case when t1.a< -t1.d then b when 19 in (t1.e, - -19,t1.b) then t1.c else t1.f end)-count(distinct (t1.f)) when count(*) then max(c) else count(distinct 17) end when count(*) then ((cast(avg(b) AS integer))) else  -count(*) end when  -count(distinct t1.f) then count(distinct t1.a) else count(distinct t1.e) end))+count(*) when cast(avg(19) AS integer) then  -min( -t1.c) else count(*) end when (min(t1.e)) then cast(avg(c) AS integer) else min(t1.f) end) then min(e) else count(*) end | max(11) from t1)+19 FROM t1 WHERE NOT (case when (((d not between (+t1.a-coalesce((select max(b*t1.b* -t1.f) from t1 where a>a),13)) and a)) and c>=d or f<c) then coalesce((select (abs(17)/abs(13))*e from t1 where f in (t1.a,13,t1.b) and (t1.c)<>e and t1.c< -11 and f<>b or t1.b<17),c) else t1.a end>=11)}
+} {}
+do_test randexpr-2.2088 {
+  db eval {SELECT (select case count(*) when ~(case case  -abs(count(*) & (case case ~case  -count(distinct case when t1.a< -t1.d then b when 19 in (t1.e, - -19,t1.b) then t1.c else t1.f end)-count(distinct (t1.f)) when count(*) then max(c) else count(distinct 17) end when count(*) then ((cast(avg(b) AS integer))) else  -count(*) end when  -count(distinct t1.f) then count(distinct t1.a) else count(distinct t1.e) end))+count(*) when cast(avg(19) AS integer) then  -min( -t1.c) else count(*) end when (min(t1.e)) then cast(avg(c) AS integer) else min(t1.f) end) then min(e) else count(*) end & max(11) from t1)+19 FROM t1 WHERE case when (((d not between (+t1.a-coalesce((select max(b*t1.b* -t1.f) from t1 where a>a),13)) and a)) and c>=d or f<c) then coalesce((select (abs(17)/abs(13))*e from t1 where f in (t1.a,13,t1.b) and (t1.c)<>e and t1.c< -11 and f<>b or t1.b<17),c) else t1.a end>=11}
+} {20}
+do_test randexpr-2.2089 {
+  db eval {SELECT case when case when t1.a*~t1.a-19-c | 17+t1.d*f*c=d then f else  -13 end+t1.b+a in (t1.f,t1.d,t1.f) and (not c=11) and t1.e<>f then coalesce((select f from t1 where t1.d not in (t1.e,f,11)), -17) else f end-b FROM t1 WHERE not exists(select 1 from t1 where +d between d*13 and ((abs(13+e+e)/abs(+case when not t1.c in (~(select cast(avg(case e when b then 11 else 13 end) AS integer) from t1)*b*17,t1.e,t1.e) then 11* -c when t1.f in (select min(e)*count(distinct c) from t1 union select  - - - -max(e) | cast(avg((d)) AS integer) from t1) then (c) else e end)))) or d<17}
+} {400}
+do_test randexpr-2.2090 {
+  db eval {SELECT case when case when t1.a*~t1.a-19-c | 17+t1.d*f*c=d then f else  -13 end+t1.b+a in (t1.f,t1.d,t1.f) and (not c=11) and t1.e<>f then coalesce((select f from t1 where t1.d not in (t1.e,f,11)), -17) else f end-b FROM t1 WHERE NOT (not exists(select 1 from t1 where +d between d*13 and ((abs(13+e+e)/abs(+case when not t1.c in (~(select cast(avg(case e when b then 11 else 13 end) AS integer) from t1)*b*17,t1.e,t1.e) then 11* -c when t1.f in (select min(e)*count(distinct c) from t1 union select  - - - -max(e) | cast(avg((d)) AS integer) from t1) then (c) else e end)))) or d<17)}
+} {}
+do_test randexpr-2.2091 {
+  db eval {SELECT case when case when t1.a*~t1.a-19-c & 17+t1.d*f*c=d then f else  -13 end+t1.b+a in (t1.f,t1.d,t1.f) and (not c=11) and t1.e<>f then coalesce((select f from t1 where t1.d not in (t1.e,f,11)), -17) else f end-b FROM t1 WHERE not exists(select 1 from t1 where +d between d*13 and ((abs(13+e+e)/abs(+case when not t1.c in (~(select cast(avg(case e when b then 11 else 13 end) AS integer) from t1)*b*17,t1.e,t1.e) then 11* -c when t1.f in (select min(e)*count(distinct c) from t1 union select  - - - -max(e) | cast(avg((d)) AS integer) from t1) then (c) else e end)))) or d<17}
+} {400}
+do_test randexpr-2.2092 {
+  db eval {SELECT coalesce((select c from t1 where t1.b between t1.b and  -17),coalesce((select  -t1.e from t1 where (select count(distinct coalesce((select case t1.b-t1.a*(b)*13 when 11 then (a) else 11 end from t1 where a not in ((t1.e),c,11) and e>b),13)) from t1) in (t1.d,b,13) and not t1.b<13 or 11<> -17 or (11)>17 or t1.f not between b and (t1.a)),(b))) FROM t1 WHERE ((+case +d when f then (d) else case t1.f-(b)-11 when d then  -t1.c else a end end not in ( -17,(t1.d),13) and (11 not in ((c),t1.f,t1.d)) and (e in (select 13 from t1 union select t1.a from t1) and d in (select t1.e from t1 union select 19 from t1))) or exists(select 1 from t1 where  -t1.a= -t1.d)) and exists(select 1 from t1 where t1.b not between f and e or 19>=t1.d)}
+} {}
+do_test randexpr-2.2093 {
+  db eval {SELECT coalesce((select c from t1 where t1.b between t1.b and  -17),coalesce((select  -t1.e from t1 where (select count(distinct coalesce((select case t1.b-t1.a*(b)*13 when 11 then (a) else 11 end from t1 where a not in ((t1.e),c,11) and e>b),13)) from t1) in (t1.d,b,13) and not t1.b<13 or 11<> -17 or (11)>17 or t1.f not between b and (t1.a)),(b))) FROM t1 WHERE NOT (((+case +d when f then (d) else case t1.f-(b)-11 when d then  -t1.c else a end end not in ( -17,(t1.d),13) and (11 not in ((c),t1.f,t1.d)) and (e in (select 13 from t1 union select t1.a from t1) and d in (select t1.e from t1 union select 19 from t1))) or exists(select 1 from t1 where  -t1.a= -t1.d)) and exists(select 1 from t1 where t1.b not between f and e or 19>=t1.d))}
+} {-500}
+do_test randexpr-2.2094 {
+  db eval {SELECT case d when f then case when (abs(coalesce((select ~f*case when t1.f<(select  -count(distinct (select count(*)-min(13) from t1)) from t1) then d when t1.d between t1.b and f and not (t1.b between ( -t1.f) and f) then  -d else b end-b | t1.f*17 from t1 where ((d>t1.d))),17))/abs(11))-13=t1.c then a else 11 end else b end FROM t1 WHERE t1.b between coalesce((select case when coalesce((select t1.c from t1 where not ((t1.a>=11+17 and (13+(11)<>13))) and b<=c and c in (c, -c,(e)) and d not in (f,b,c) or t1.d>=13 and 13 between 19 and a),d) not between 13-case when t1.f<>t1.b then t1.f else t1.c end | d and d then b when c<c then 13 else 11 end*t1.e from t1 where b>= -d),19) and c}
+} {}
+do_test randexpr-2.2095 {
+  db eval {SELECT case d when f then case when (abs(coalesce((select ~f*case when t1.f<(select  -count(distinct (select count(*)-min(13) from t1)) from t1) then d when t1.d between t1.b and f and not (t1.b between ( -t1.f) and f) then  -d else b end-b | t1.f*17 from t1 where ((d>t1.d))),17))/abs(11))-13=t1.c then a else 11 end else b end FROM t1 WHERE NOT (t1.b between coalesce((select case when coalesce((select t1.c from t1 where not ((t1.a>=11+17 and (13+(11)<>13))) and b<=c and c in (c, -c,(e)) and d not in (f,b,c) or t1.d>=13 and 13 between 19 and a),d) not between 13-case when t1.f<>t1.b then t1.f else t1.c end | d and d then b when c<c then 13 else 11 end*t1.e from t1 where b>= -d),19) and c)}
+} {200}
+do_test randexpr-2.2096 {
+  db eval {SELECT case d when f then case when (abs(coalesce((select ~f*case when t1.f<(select  -count(distinct (select count(*)-min(13) from t1)) from t1) then d when t1.d between t1.b and f and not (t1.b between ( -t1.f) and f) then  -d else b end-b & t1.f*17 from t1 where ((d>t1.d))),17))/abs(11))-13=t1.c then a else 11 end else b end FROM t1 WHERE NOT (t1.b between coalesce((select case when coalesce((select t1.c from t1 where not ((t1.a>=11+17 and (13+(11)<>13))) and b<=c and c in (c, -c,(e)) and d not in (f,b,c) or t1.d>=13 and 13 between 19 and a),d) not between 13-case when t1.f<>t1.b then t1.f else t1.c end | d and d then b when c<c then 13 else 11 end*t1.e from t1 where b>= -d),19) and c)}
+} {200}
+do_test randexpr-2.2097 {
+  db eval {SELECT (coalesce((select case when exists(select 1 from t1 where case when (t1.b)>=f+e*coalesce((select max( -+t1.c) from t1 where case a when e then e else 11 end in (select 17 from t1 union select d from t1) or e not between d and a),t1.f) then ( -t1.d) else e end in (11,c,b)) then 17 else t1.f end+t1.f from t1 where not d in ((b),(f),11) and t1.f<f),19)) FROM t1 WHERE exists(select 1 from t1 where coalesce((select max(case when t1.d in (select  -a from t1 union select 11 from t1) then t1.b when case when t1.f not in (t1.d, -19,t1.e) and t1.a>=t1.b and 19<13 then 19 else 13 end<a then e else b end) from t1 where t1.f in (select +count(distinct  - -13)* - -case max(t1.f) when max(13) then (min(t1.c)) else (max(t1.b)) end from t1 union select cast(avg(t1.a) AS integer) from t1) or t1.e not in (b,17,e)), -17)>=19) and b not in (c,t1.a,d) or b between e and  -t1.f or t1.b between t1.e and c and t1.a<=t1.d}
+} {}
+do_test randexpr-2.2098 {
+  db eval {SELECT (coalesce((select case when exists(select 1 from t1 where case when (t1.b)>=f+e*coalesce((select max( -+t1.c) from t1 where case a when e then e else 11 end in (select 17 from t1 union select d from t1) or e not between d and a),t1.f) then ( -t1.d) else e end in (11,c,b)) then 17 else t1.f end+t1.f from t1 where not d in ((b),(f),11) and t1.f<f),19)) FROM t1 WHERE NOT (exists(select 1 from t1 where coalesce((select max(case when t1.d in (select  -a from t1 union select 11 from t1) then t1.b when case when t1.f not in (t1.d, -19,t1.e) and t1.a>=t1.b and 19<13 then 19 else 13 end<a then e else b end) from t1 where t1.f in (select +count(distinct  - -13)* - -case max(t1.f) when max(13) then (min(t1.c)) else (max(t1.b)) end from t1 union select cast(avg(t1.a) AS integer) from t1) or t1.e not in (b,17,e)), -17)>=19) and b not in (c,t1.a,d) or b between e and  -t1.f or t1.b between t1.e and c and t1.a<=t1.d)}
+} {19}
+do_test randexpr-2.2099 {
+  db eval {SELECT 11+17+case when case 17 when coalesce((select max(d) from t1 where 13+(t1.c-e)+19+e-t1.e>=b and not 11 not in (19,t1.e,13) and (t1.f)>b),19)*19 then c else  -d end not in (c,19,t1.c) then d when d<=t1.d then 13 else 11 end+ -a FROM t1 WHERE coalesce((select max(~t1.f) from t1 where (13*t1.e)<=case when 17 | a<=t1.e then coalesce((select max(19) from t1 where case when not not exists(select 1 from t1 where 19 in (t1.d+19,11,t1.f) or not exists(select 1 from t1 where a<e)) then case when t1.d<(t1.b) then t1.d when 13>=t1.c then  - -11 else t1.b end else f end-f<=b),t1.b) else t1.e end),f)-19>=13}
+} {328}
+do_test randexpr-2.2100 {
+  db eval {SELECT 11+17+case when case 17 when coalesce((select max(d) from t1 where 13+(t1.c-e)+19+e-t1.e>=b and not 11 not in (19,t1.e,13) and (t1.f)>b),19)*19 then c else  -d end not in (c,19,t1.c) then d when d<=t1.d then 13 else 11 end+ -a FROM t1 WHERE NOT (coalesce((select max(~t1.f) from t1 where (13*t1.e)<=case when 17 | a<=t1.e then coalesce((select max(19) from t1 where case when not not exists(select 1 from t1 where 19 in (t1.d+19,11,t1.f) or not exists(select 1 from t1 where a<e)) then case when t1.d<(t1.b) then t1.d when 13>=t1.c then  - -11 else t1.b end else f end-f<=b),t1.b) else t1.e end),f)-19>=13)}
+} {}
+do_test randexpr-2.2101 {
+  db eval {SELECT coalesce((select max(t1.a+(select count(distinct 11-case when coalesce((select max(11) from t1 where t1.f<(t1.a)-t1.b),b) in (select ~abs(min(c-case when (case 13 when  -coalesce((select (t1.e) from t1 where  -a not in (f,t1.d,d)),(11)) then b else t1.e end not between b and  -t1.e) then e else t1.a end)) | count(*) from t1 union select  -min(17) from t1) then t1.a else t1.d end) from t1)-t1.b) from t1 where 17<t1.e),t1.e) FROM t1 WHERE case when not (not exists(select 1 from t1 where c*case when (a>11) then e else a end-t1.c+(d)*(13) in (select ~count(distinct (t1.f))+ -~ -count(distinct t1.e)+(min(13)) from t1 union select cast(avg(11) AS integer) from t1) or t1.e<>t1.f)) then f when not a<19 then coalesce((select max(11) from t1 where (t1.d) between  -d and  -t1.e or t1.f not between d and a and  -b=19),t1.b) else +t1.f end not between a and e}
+} {-99}
+do_test randexpr-2.2102 {
+  db eval {SELECT coalesce((select max(t1.a+(select count(distinct 11-case when coalesce((select max(11) from t1 where t1.f<(t1.a)-t1.b),b) in (select ~abs(min(c-case when (case 13 when  -coalesce((select (t1.e) from t1 where  -a not in (f,t1.d,d)),(11)) then b else t1.e end not between b and  -t1.e) then e else t1.a end)) | count(*) from t1 union select  -min(17) from t1) then t1.a else t1.d end) from t1)-t1.b) from t1 where 17<t1.e),t1.e) FROM t1 WHERE NOT (case when not (not exists(select 1 from t1 where c*case when (a>11) then e else a end-t1.c+(d)*(13) in (select ~count(distinct (t1.f))+ -~ -count(distinct t1.e)+(min(13)) from t1 union select cast(avg(11) AS integer) from t1) or t1.e<>t1.f)) then f when not a<19 then coalesce((select max(11) from t1 where (t1.d) between  -d and  -t1.e or t1.f not between d and a and  -b=19),t1.b) else +t1.f end not between a and e)}
+} {}
+do_test randexpr-2.2103 {
+  db eval {SELECT coalesce((select max(t1.a+(select count(distinct 11-case when coalesce((select max(11) from t1 where t1.f<(t1.a)-t1.b),b) in (select ~abs(min(c-case when (case 13 when  -coalesce((select (t1.e) from t1 where  -a not in (f,t1.d,d)),(11)) then b else t1.e end not between b and  -t1.e) then e else t1.a end)) & count(*) from t1 union select  -min(17) from t1) then t1.a else t1.d end) from t1)-t1.b) from t1 where 17<t1.e),t1.e) FROM t1 WHERE case when not (not exists(select 1 from t1 where c*case when (a>11) then e else a end-t1.c+(d)*(13) in (select ~count(distinct (t1.f))+ -~ -count(distinct t1.e)+(min(13)) from t1 union select cast(avg(11) AS integer) from t1) or t1.e<>t1.f)) then f when not a<19 then coalesce((select max(11) from t1 where (t1.d) between  -d and  -t1.e or t1.f not between d and a and  -b=19),t1.b) else +t1.f end not between a and e}
+} {-99}
+do_test randexpr-2.2104 {
+  db eval {SELECT t1.b-case when 13 not between 13 and (select +count(*) from t1) then t1.e when +11 in (coalesce((select t1.f from t1 where d-((f))*coalesce((select d from t1 where 17 between ~(select max(d) | count(*) | cast(avg(e) AS integer)+count(*) from t1) and case when c<13 or 17>13 then a else e end-t1.b),e)-t1.a<=(t1.e)),19),b,13) then e else b end-t1.b FROM t1 WHERE t1.b>=coalesce((select max(d-c) from t1 where exists(select 1 from t1 where (~a*(select  -count(distinct 11-d*13+d+19) from t1)* -b in (f,t1.d-c,a-(abs(c)/abs(case when (abs(13- -(19))/abs(t1.f)) in (select c from t1 union select  -a from t1) then t1.c when b<=c then t1.a else  -13 end)))))),19)}
+} {-500}
+do_test randexpr-2.2105 {
+  db eval {SELECT t1.b-case when 13 not between 13 and (select +count(*) from t1) then t1.e when +11 in (coalesce((select t1.f from t1 where d-((f))*coalesce((select d from t1 where 17 between ~(select max(d) | count(*) | cast(avg(e) AS integer)+count(*) from t1) and case when c<13 or 17>13 then a else e end-t1.b),e)-t1.a<=(t1.e)),19),b,13) then e else b end-t1.b FROM t1 WHERE NOT (t1.b>=coalesce((select max(d-c) from t1 where exists(select 1 from t1 where (~a*(select  -count(distinct 11-d*13+d+19) from t1)* -b in (f,t1.d-c,a-(abs(c)/abs(case when (abs(13- -(19))/abs(t1.f)) in (select c from t1 union select  -a from t1) then t1.c when b<=c then t1.a else  -13 end)))))),19))}
+} {}
+do_test randexpr-2.2106 {
+  db eval {SELECT t1.b-case when 13 not between 13 and (select +count(*) from t1) then t1.e when +11 in (coalesce((select t1.f from t1 where d-((f))*coalesce((select d from t1 where 17 between ~(select max(d) & count(*) & cast(avg(e) AS integer)+count(*) from t1) and case when c<13 or 17>13 then a else e end-t1.b),e)-t1.a<=(t1.e)),19),b,13) then e else b end-t1.b FROM t1 WHERE t1.b>=coalesce((select max(d-c) from t1 where exists(select 1 from t1 where (~a*(select  -count(distinct 11-d*13+d+19) from t1)* -b in (f,t1.d-c,a-(abs(c)/abs(case when (abs(13- -(19))/abs(t1.f)) in (select c from t1 union select  -a from t1) then t1.c when b<=c then t1.a else  -13 end)))))),19)}
+} {-500}
+do_test randexpr-2.2107 {
+  db eval {SELECT t1.f*case when c*case when t1.d*t1.b-(~19) in (select (cast(avg(d-t1.d) AS integer)) from t1 union select min(11)+cast(avg(e) AS integer) | abs(count(distinct t1.a) | min(19)) from t1) then t1.d when not 11 not in (d,t1.e,13) then t1.a else 11 end in (select (t1.c) from t1 union select 11 from t1) or t1.e not in (f, -t1.f,t1.e) then c else d end FROM t1 WHERE case when t1.e=t1.c and (abs(case when (11* -17 not in (c,t1.f-t1.c-coalesce((select max(c) from t1 where c in (select min(19) from t1 union select ~count(*)*max(t1.f) from t1)),a),t1.a)) then coalesce((select max(17) from t1 where  -b>=(t1.c)),19) else f end+19)/abs(t1.f))*t1.d between d and b then t1.b-t1.e else c end=19}
+} {}
+do_test randexpr-2.2108 {
+  db eval {SELECT t1.f*case when c*case when t1.d*t1.b-(~19) in (select (cast(avg(d-t1.d) AS integer)) from t1 union select min(11)+cast(avg(e) AS integer) | abs(count(distinct t1.a) | min(19)) from t1) then t1.d when not 11 not in (d,t1.e,13) then t1.a else 11 end in (select (t1.c) from t1 union select 11 from t1) or t1.e not in (f, -t1.f,t1.e) then c else d end FROM t1 WHERE NOT (case when t1.e=t1.c and (abs(case when (11* -17 not in (c,t1.f-t1.c-coalesce((select max(c) from t1 where c in (select min(19) from t1 union select ~count(*)*max(t1.f) from t1)),a),t1.a)) then coalesce((select max(17) from t1 where  -b>=(t1.c)),19) else f end+19)/abs(t1.f))*t1.d between d and b then t1.b-t1.e else c end=19)}
+} {240000}
+do_test randexpr-2.2109 {
+  db eval {SELECT t1.f*case when c*case when t1.d*t1.b-(~19) in (select (cast(avg(d-t1.d) AS integer)) from t1 union select min(11)+cast(avg(e) AS integer) & abs(count(distinct t1.a) & min(19)) from t1) then t1.d when not 11 not in (d,t1.e,13) then t1.a else 11 end in (select (t1.c) from t1 union select 11 from t1) or t1.e not in (f, -t1.f,t1.e) then c else d end FROM t1 WHERE NOT (case when t1.e=t1.c and (abs(case when (11* -17 not in (c,t1.f-t1.c-coalesce((select max(c) from t1 where c in (select min(19) from t1 union select ~count(*)*max(t1.f) from t1)),a),t1.a)) then coalesce((select max(17) from t1 where  -b>=(t1.c)),19) else f end+19)/abs(t1.f))*t1.d between d and b then t1.b-t1.e else c end=19)}
+} {240000}
+do_test randexpr-2.2110 {
+  db eval {SELECT coalesce((select max((abs(t1.d)/abs((coalesce((select c from t1 where (abs(+f)/abs(t1.b))-t1.a between 13 and case (13+c+((abs(coalesce((select 11 from t1 where 11+19<b),case t1.f when t1.f then b else 11 end)*a)/abs(c)))+t1.f) when f then  -c else t1.f end),e)-t1.e*19)))) from t1 where e<e),t1.c) FROM t1 WHERE c in (select c+19 from t1 union select +t1.f from t1) and t1.e<case when case (abs(t1.a)/abs(t1.b))-coalesce((select (abs(e+t1.e | b)/abs(e))*13 from t1 where (c=11) and b< -f or 13=b or  -d< -(e)),b) when e then 11 else t1.e end between b and (19) then t1.b else c end}
+} {}
+do_test randexpr-2.2111 {
+  db eval {SELECT coalesce((select max((abs(t1.d)/abs((coalesce((select c from t1 where (abs(+f)/abs(t1.b))-t1.a between 13 and case (13+c+((abs(coalesce((select 11 from t1 where 11+19<b),case t1.f when t1.f then b else 11 end)*a)/abs(c)))+t1.f) when f then  -c else t1.f end),e)-t1.e*19)))) from t1 where e<e),t1.c) FROM t1 WHERE NOT (c in (select c+19 from t1 union select +t1.f from t1) and t1.e<case when case (abs(t1.a)/abs(t1.b))-coalesce((select (abs(e+t1.e | b)/abs(e))*13 from t1 where (c=11) and b< -f or 13=b or  -d< -(e)),b) when e then 11 else t1.e end between b and (19) then t1.b else c end)}
+} {300}
+do_test randexpr-2.2112 {
+  db eval {SELECT f+coalesce((select max(t1.f) from t1 where (case when 13<>a then (coalesce((select  -e from t1 where case coalesce((select case when 19 in (select t1.e from t1 union select f from t1) then b when t1.c=11 then a else (13) end from t1 where t1.a in (select ( -cast(avg(13) AS integer)+max(t1.e)) from t1 union select cast(avg(19) AS integer) from t1)),19) when f then f else ( -t1.c) end+17<=e and a>=t1.b or t1.c>=b),t1.e)) else e end)>=e),b)+f FROM t1 WHERE exists(select 1 from t1 where 17 in (select  -abs(case (min(t1.b)) when count(*)*max(a) then  -abs((max(e))) | ~max( -coalesce((select max(coalesce((select e from t1 where f>=11 or exists(select 1 from t1 where 11 not in (11,t1.c,f))),d)) from t1 where 13=t1.d and 17<>f),t1.d))+count(distinct t1.e) else count(*)+~cast(avg(t1.f) AS integer) end | count(distinct t1.a))+count(distinct t1.a) from t1 union select count(*) from t1))}
+} {}
+do_test randexpr-2.2113 {
+  db eval {SELECT f+coalesce((select max(t1.f) from t1 where (case when 13<>a then (coalesce((select  -e from t1 where case coalesce((select case when 19 in (select t1.e from t1 union select f from t1) then b when t1.c=11 then a else (13) end from t1 where t1.a in (select ( -cast(avg(13) AS integer)+max(t1.e)) from t1 union select cast(avg(19) AS integer) from t1)),19) when f then f else ( -t1.c) end+17<=e and a>=t1.b or t1.c>=b),t1.e)) else e end)>=e),b)+f FROM t1 WHERE NOT (exists(select 1 from t1 where 17 in (select  -abs(case (min(t1.b)) when count(*)*max(a) then  -abs((max(e))) | ~max( -coalesce((select max(coalesce((select e from t1 where f>=11 or exists(select 1 from t1 where 11 not in (11,t1.c,f))),d)) from t1 where 13=t1.d and 17<>f),t1.d))+count(distinct t1.e) else count(*)+~cast(avg(t1.f) AS integer) end | count(distinct t1.a))+count(distinct t1.a) from t1 union select count(*) from t1)))}
+} {1400}
+do_test randexpr-2.2114 {
+  db eval {SELECT case when case when (abs( -t1.b)/abs(case case case (select ~ -(+abs(case min(19) when (( -min(t1.e))) then count(distinct (t1.e)) else cast(avg(11) AS integer) end)) from t1) when t1.e then (select min(19) from t1) else 17 end when (13)-a*17 then t1.d else t1.a end when a then 19 else  -( -f) end))>=d then t1.e else 13 end between f and 19 then f when t1.c<=t1.a or (t1.b>(11)) then 11 else t1.b end FROM t1 WHERE t1.c in (select case when 11<17 then case when (t1.b*coalesce((select (abs((coalesce((select a-19 from t1 where t1.c between e and f and d<>17 and t1.d not between 19 and 19),a)))/abs(t1.c))+t1.b-17 from t1 where c=a), -t1.d)+c>t1.f) then  -13+(t1.e) when 11<>t1.c then 13 else t1.c end when 11=c then t1.c else (c) end from t1 union select t1.e from t1)}
+} {}
+do_test randexpr-2.2115 {
+  db eval {SELECT case when case when (abs( -t1.b)/abs(case case case (select ~ -(+abs(case min(19) when (( -min(t1.e))) then count(distinct (t1.e)) else cast(avg(11) AS integer) end)) from t1) when t1.e then (select min(19) from t1) else 17 end when (13)-a*17 then t1.d else t1.a end when a then 19 else  -( -f) end))>=d then t1.e else 13 end between f and 19 then f when t1.c<=t1.a or (t1.b>(11)) then 11 else t1.b end FROM t1 WHERE NOT (t1.c in (select case when 11<17 then case when (t1.b*coalesce((select (abs((coalesce((select a-19 from t1 where t1.c between e and f and d<>17 and t1.d not between 19 and 19),a)))/abs(t1.c))+t1.b-17 from t1 where c=a), -t1.d)+c>t1.f) then  -13+(t1.e) when 11<>t1.c then 13 else t1.c end when 11=c then t1.c else (c) end from t1 union select t1.e from t1))}
+} {11}
+do_test randexpr-2.2116 {
+  db eval {SELECT t1.e+coalesce((select case t1.a-case when t1.a in (case (abs(coalesce((select t1.e from t1 where t1.a>t1.b),~c))/abs(t1.b))* -(select count(distinct t1.c)-cast(avg(coalesce((select 19 from t1 where c not between (abs(b-11)/abs( -t1.e)) and (17)),17)) AS integer) from t1) when t1.e then f else 17 end,t1.c,t1.c) then d else t1.e end when d then 17 else 13 end from t1 where 11<11),t1.f) FROM t1 WHERE 11* -19 in (select case when ~coalesce((select t1.b from t1 where coalesce((select d from t1 where t1.a=17*~e+t1.d*case when 11< -~t1.b*t1.b*c+a then (c) else 19 end*a),e)>e),11)<=19 then t1.c when (not exists(select 1 from t1 where t1.d<17)) then b else c end from t1 union select t1.a from t1)}
+} {}
+do_test randexpr-2.2117 {
+  db eval {SELECT t1.e+coalesce((select case t1.a-case when t1.a in (case (abs(coalesce((select t1.e from t1 where t1.a>t1.b),~c))/abs(t1.b))* -(select count(distinct t1.c)-cast(avg(coalesce((select 19 from t1 where c not between (abs(b-11)/abs( -t1.e)) and (17)),17)) AS integer) from t1) when t1.e then f else 17 end,t1.c,t1.c) then d else t1.e end when d then 17 else 13 end from t1 where 11<11),t1.f) FROM t1 WHERE NOT (11* -19 in (select case when ~coalesce((select t1.b from t1 where coalesce((select d from t1 where t1.a=17*~e+t1.d*case when 11< -~t1.b*t1.b*c+a then (c) else 19 end*a),e)>e),11)<=19 then t1.c when (not exists(select 1 from t1 where t1.d<17)) then b else c end from t1 union select t1.a from t1))}
+} {1100}
+do_test randexpr-2.2118 {
+  db eval {SELECT 19* -coalesce((select coalesce((select t1.d*17 from t1 where t1.b<=t1.b+17), -(a | 17)) from t1 where t1.d in (select case abs(count(*))*count(distinct (17)) when max(11) then abs(+max(13)-case  -cast(avg(t1.d) AS integer)- -(max(19))-count(distinct d) when min(t1.c) then cast(avg(c) AS integer) else count(distinct t1.f) end | max(c)) else max(t1.d) end from t1 union select count(*) from t1)),t1.f)-t1.e+c FROM t1 WHERE ~(abs(case 17 when d then coalesce((select t1.d from t1 where 13 in (select t1.d-f | case when (17 in (t1.a,19,t1.f)) then case when a*f in (select e from t1 union select t1.a from t1) or 11=t1.c or t1.a>=(19) and ( -b)<f or e<>13 then b when t1.e in (t1.c, -t1.b,a) then 19 else 19 end else a end from t1 union select t1.b from t1)),d) else 13 end)/abs(11))+19*t1.e in (e, -t1.e,a)}
+} {}
+do_test randexpr-2.2119 {
+  db eval {SELECT 19* -coalesce((select coalesce((select t1.d*17 from t1 where t1.b<=t1.b+17), -(a | 17)) from t1 where t1.d in (select case abs(count(*))*count(distinct (17)) when max(11) then abs(+max(13)-case  -cast(avg(t1.d) AS integer)- -(max(19))-count(distinct d) when min(t1.c) then cast(avg(c) AS integer) else count(distinct t1.f) end | max(c)) else max(t1.d) end from t1 union select count(*) from t1)),t1.f)-t1.e+c FROM t1 WHERE NOT (~(abs(case 17 when d then coalesce((select t1.d from t1 where 13 in (select t1.d-f | case when (17 in (t1.a,19,t1.f)) then case when a*f in (select e from t1 union select t1.a from t1) or 11=t1.c or t1.a>=(19) and ( -b)<f or e<>13 then b when t1.e in (t1.c, -t1.b,a) then 19 else 19 end else a end from t1 union select t1.b from t1)),d) else 13 end)/abs(11))+19*t1.e in (e, -t1.e,a))}
+} {-129400}
+do_test randexpr-2.2120 {
+  db eval {SELECT 19* -coalesce((select coalesce((select t1.d*17 from t1 where t1.b<=t1.b+17), -(a & 17)) from t1 where t1.d in (select case abs(count(*))*count(distinct (17)) when max(11) then abs(+max(13)-case  -cast(avg(t1.d) AS integer)- -(max(19))-count(distinct d) when min(t1.c) then cast(avg(c) AS integer) else count(distinct t1.f) end & max(c)) else max(t1.d) end from t1 union select count(*) from t1)),t1.f)-t1.e+c FROM t1 WHERE NOT (~(abs(case 17 when d then coalesce((select t1.d from t1 where 13 in (select t1.d-f | case when (17 in (t1.a,19,t1.f)) then case when a*f in (select e from t1 union select t1.a from t1) or 11=t1.c or t1.a>=(19) and ( -b)<f or e<>13 then b when t1.e in (t1.c, -t1.b,a) then 19 else 19 end else a end from t1 union select t1.b from t1)),d) else 13 end)/abs(11))+19*t1.e in (e, -t1.e,a))}
+} {-129400}
+do_test randexpr-2.2121 {
+  db eval {SELECT case t1.f when f then t1.a-case d+t1.d+coalesce((select (select cast(avg( -case when t1.d in (select  -min(17)-count(*)+max(f) from t1 union select  -count(distinct 13) from t1) then t1.e else a end*a) AS integer) from t1)-t1.d from t1 where  -t1.b not in (11, -(t1.b),t1.d) and c in (select b from t1 union select 19 from t1) and t1.a in (select  -e from t1 union select t1.e from t1)),a)*t1.f when 19 then t1.f else 11 end else c end FROM t1 WHERE t1.c>11}
+} {89}
+do_test randexpr-2.2122 {
+  db eval {SELECT case t1.f when f then t1.a-case d+t1.d+coalesce((select (select cast(avg( -case when t1.d in (select  -min(17)-count(*)+max(f) from t1 union select  -count(distinct 13) from t1) then t1.e else a end*a) AS integer) from t1)-t1.d from t1 where  -t1.b not in (11, -(t1.b),t1.d) and c in (select b from t1 union select 19 from t1) and t1.a in (select  -e from t1 union select t1.e from t1)),a)*t1.f when 19 then t1.f else 11 end else c end FROM t1 WHERE NOT (t1.c>11)}
+} {}
+do_test randexpr-2.2123 {
+  db eval {SELECT case when (case when (e not in (e | e,17,e)) then 13 else t1.b end>+t1.b*f-b+t1.d-e) or 19 between b and t1.a then 11 when exists(select 1 from t1 where (t1.d) | t1.d in (case when (e>=(11)) or (t1.a)>=t1.f then c-b when t1.c<>t1.e then t1.a else (17) end,c,13)) then 17 else t1.b end FROM t1 WHERE (select min(case when a not in (coalesce((select 19 from t1 where t1.f<((abs(e)/abs(t1.a+e)) | d)-e),e),t1.f,t1.a) then c else 13 end)-(count(distinct d)-abs(count(distinct t1.c)-cast(avg(d) AS integer) | min(b)+(cast(avg(19) AS integer) | case count(distinct t1.c) when cast(avg( -t1.b) AS integer) then cast(avg(t1.a) AS integer) else max(13) end))) from t1) not between b | a and 19}
+} {200}
+do_test randexpr-2.2124 {
+  db eval {SELECT case when (case when (e not in (e | e,17,e)) then 13 else t1.b end>+t1.b*f-b+t1.d-e) or 19 between b and t1.a then 11 when exists(select 1 from t1 where (t1.d) | t1.d in (case when (e>=(11)) or (t1.a)>=t1.f then c-b when t1.c<>t1.e then t1.a else (17) end,c,13)) then 17 else t1.b end FROM t1 WHERE NOT ((select min(case when a not in (coalesce((select 19 from t1 where t1.f<((abs(e)/abs(t1.a+e)) | d)-e),e),t1.f,t1.a) then c else 13 end)-(count(distinct d)-abs(count(distinct t1.c)-cast(avg(d) AS integer) | min(b)+(cast(avg(19) AS integer) | case count(distinct t1.c) when cast(avg( -t1.b) AS integer) then cast(avg(t1.a) AS integer) else max(13) end))) from t1) not between b | a and 19)}
+} {}
+do_test randexpr-2.2125 {
+  db eval {SELECT case when (case when (e not in (e & e,17,e)) then 13 else t1.b end>+t1.b*f-b+t1.d-e) or 19 between b and t1.a then 11 when exists(select 1 from t1 where (t1.d) & t1.d in (case when (e>=(11)) or (t1.a)>=t1.f then c-b when t1.c<>t1.e then t1.a else (17) end,c,13)) then 17 else t1.b end FROM t1 WHERE (select min(case when a not in (coalesce((select 19 from t1 where t1.f<((abs(e)/abs(t1.a+e)) | d)-e),e),t1.f,t1.a) then c else 13 end)-(count(distinct d)-abs(count(distinct t1.c)-cast(avg(d) AS integer) | min(b)+(cast(avg(19) AS integer) | case count(distinct t1.c) when cast(avg( -t1.b) AS integer) then cast(avg(t1.a) AS integer) else max(13) end))) from t1) not between b | a and 19}
+} {200}
+do_test randexpr-2.2126 {
+  db eval {SELECT case when case when t1.c+13<13 then 11 when (t1.b) not in (t1.b,e,t1.c) then t1.f else  -t1.c end- -a | 13 in (select max(a) from t1 union select count(distinct 17)* -case count(*) when count(*) then  -((count(distinct 17))) else max(t1.b) end | ( -count(*)) from t1) and e<=17 and t1.c<=d then coalesce((select max(coalesce((select max(e) from t1 where t1.f not in (e,17,t1.b) and d= -t1.b),t1.d)) from t1 where t1.d<f),b) when  -c not between f and t1.f then b else t1.a end FROM t1 WHERE a<=case b when coalesce((select max(19) from t1 where (coalesce((select max(11) from t1 where ((not coalesce((select max(t1.e) from t1 where  -19 in (select count(*) from t1 union select (max(t1.c)) from t1)),t1.a)-11 between f and t1.c))),case when exists(select 1 from t1 where  -(17)< -a) then 17*17 else a end) not in (17,b,t1.e)) or 17 between a and t1.f and  -a<11 and 19<=(t1.b)),t1.c) then ~case when 11>(f) then t1.e else 17 end else t1.c end-19}
+} {200}
+do_test randexpr-2.2127 {
+  db eval {SELECT case when case when t1.c+13<13 then 11 when (t1.b) not in (t1.b,e,t1.c) then t1.f else  -t1.c end- -a | 13 in (select max(a) from t1 union select count(distinct 17)* -case count(*) when count(*) then  -((count(distinct 17))) else max(t1.b) end | ( -count(*)) from t1) and e<=17 and t1.c<=d then coalesce((select max(coalesce((select max(e) from t1 where t1.f not in (e,17,t1.b) and d= -t1.b),t1.d)) from t1 where t1.d<f),b) when  -c not between f and t1.f then b else t1.a end FROM t1 WHERE NOT (a<=case b when coalesce((select max(19) from t1 where (coalesce((select max(11) from t1 where ((not coalesce((select max(t1.e) from t1 where  -19 in (select count(*) from t1 union select (max(t1.c)) from t1)),t1.a)-11 between f and t1.c))),case when exists(select 1 from t1 where  -(17)< -a) then 17*17 else a end) not in (17,b,t1.e)) or 17 between a and t1.f and  -a<11 and 19<=(t1.b)),t1.c) then ~case when 11>(f) then t1.e else 17 end else t1.c end-19)}
+} {}
+do_test randexpr-2.2128 {
+  db eval {SELECT case when case when t1.c+13<13 then 11 when (t1.b) not in (t1.b,e,t1.c) then t1.f else  -t1.c end- -a & 13 in (select max(a) from t1 union select count(distinct 17)* -case count(*) when count(*) then  -((count(distinct 17))) else max(t1.b) end & ( -count(*)) from t1) and e<=17 and t1.c<=d then coalesce((select max(coalesce((select max(e) from t1 where t1.f not in (e,17,t1.b) and d= -t1.b),t1.d)) from t1 where t1.d<f),b) when  -c not between f and t1.f then b else t1.a end FROM t1 WHERE a<=case b when coalesce((select max(19) from t1 where (coalesce((select max(11) from t1 where ((not coalesce((select max(t1.e) from t1 where  -19 in (select count(*) from t1 union select (max(t1.c)) from t1)),t1.a)-11 between f and t1.c))),case when exists(select 1 from t1 where  -(17)< -a) then 17*17 else a end) not in (17,b,t1.e)) or 17 between a and t1.f and  -a<11 and 19<=(t1.b)),t1.c) then ~case when 11>(f) then t1.e else 17 end else t1.c end-19}
+} {200}
+do_test randexpr-2.2129 {
+  db eval {SELECT coalesce((select case t1.e when coalesce((select max(e- -coalesce((select 17-d-e from t1 where ( -e*(d)>t1.c and 17=(t1.b) or not 11>(a) and b not between ((f)) and t1.d)),t1.c)-f-(f)*b+t1.a) from t1 where f<>13),t1.b) then t1.c else t1.b end from t1 where c in (select t1.a from t1 union select (t1.e) from t1)),e) FROM t1 WHERE (c in (select ~abs(cast(avg(19) AS integer))- -(case (++abs(max( -(select case case ( -abs(+cast(avg(b) AS integer) | count(distinct t1.b*17)*min( -11)*count(distinct t1.e))) when (max( -t1.b)) then count(distinct e) else max(11) end when  -min(d) then count(*) else cast(avg(t1.a) AS integer) end from t1))*max(11))) when min(b) then max(19) else (count(*)) end)* -(max(t1.a))-count(*) from t1 union select count(distinct t1.a) from t1))}
+} {}
+do_test randexpr-2.2130 {
+  db eval {SELECT coalesce((select case t1.e when coalesce((select max(e- -coalesce((select 17-d-e from t1 where ( -e*(d)>t1.c and 17=(t1.b) or not 11>(a) and b not between ((f)) and t1.d)),t1.c)-f-(f)*b+t1.a) from t1 where f<>13),t1.b) then t1.c else t1.b end from t1 where c in (select t1.a from t1 union select (t1.e) from t1)),e) FROM t1 WHERE NOT ((c in (select ~abs(cast(avg(19) AS integer))- -(case (++abs(max( -(select case case ( -abs(+cast(avg(b) AS integer) | count(distinct t1.b*17)*min( -11)*count(distinct t1.e))) when (max( -t1.b)) then count(distinct e) else max(11) end when  -min(d) then count(*) else cast(avg(t1.a) AS integer) end from t1))*max(11))) when min(b) then max(19) else (count(*)) end)* -(max(t1.a))-count(*) from t1 union select count(distinct t1.a) from t1)))}
+} {500}
+do_test randexpr-2.2131 {
+  db eval {SELECT t1.e+13-(abs(f)/abs(e | coalesce((select case when (f>=~t1.c*case t1.a when  -d then (11) else 17 end*19) then case a when t1.e then b else e end else t1.c end from t1 where e in (select t1.a from t1 union select a from t1) or t1.d not in (f,f,17) and t1.b not between f and 17 and e=c),t1.c)*17+d+t1.d)) FROM t1 WHERE coalesce((select ~f+t1.c*t1.d | t1.d*t1.d-t1.b from t1 where t1.b | t1.a between case when (abs(coalesce((select f from t1 where t1.e between 11-17 and t1.c),e)-t1.d*b)/abs(((d))))-d between t1.b and d then a when  -(f) between e and t1.e then t1.a else a end and t1.b),t1.a)-11=d}
+} {}
+do_test randexpr-2.2132 {
+  db eval {SELECT t1.e+13-(abs(f)/abs(e | coalesce((select case when (f>=~t1.c*case t1.a when  -d then (11) else 17 end*19) then case a when t1.e then b else e end else t1.c end from t1 where e in (select t1.a from t1 union select a from t1) or t1.d not in (f,f,17) and t1.b not between f and 17 and e=c),t1.c)*17+d+t1.d)) FROM t1 WHERE NOT (coalesce((select ~f+t1.c*t1.d | t1.d*t1.d-t1.b from t1 where t1.b | t1.a between case when (abs(coalesce((select f from t1 where t1.e between 11-17 and t1.c),e)-t1.d*b)/abs(((d))))-d between t1.b and d then a when  -(f) between e and t1.e then t1.a else a end and t1.b),t1.a)-11=d)}
+} {513}
+do_test randexpr-2.2133 {
+  db eval {SELECT t1.e+13-(abs(f)/abs(e & coalesce((select case when (f>=~t1.c*case t1.a when  -d then (11) else 17 end*19) then case a when t1.e then b else e end else t1.c end from t1 where e in (select t1.a from t1 union select a from t1) or t1.d not in (f,f,17) and t1.b not between f and 17 and e=c),t1.c)*17+d+t1.d)) FROM t1 WHERE NOT (coalesce((select ~f+t1.c*t1.d | t1.d*t1.d-t1.b from t1 where t1.b | t1.a between case when (abs(coalesce((select f from t1 where t1.e between 11-17 and t1.c),e)-t1.d*b)/abs(((d))))-d between t1.b and d then a when  -(f) between e and t1.e then t1.a else a end and t1.b),t1.a)-11=d)}
+} {511}
+do_test randexpr-2.2134 {
+  db eval {SELECT +(abs(~+13+(abs(t1.c)/abs(t1.c | coalesce((select t1.a from t1 where (select min(t1.c) from t1)<>(abs(t1.f | coalesce((select c from t1 where b=17),f)-b)/abs(coalesce((select max(d-t1.e) from t1 where not exists(select 1 from t1 where t1.e in (select f from t1 union select t1.d from t1))),19)*e+19)) or t1.a in (select 13 from t1 union select t1.d from t1) and (b)<= -t1.f),11))))/abs(e)) FROM t1 WHERE t1.e<>coalesce((select case 17 when f then coalesce((select max(t1.c) from t1 where coalesce((select coalesce((select ~e from t1 where not 17<=e | 17),11)+t1.d+t1.e from t1 where (e>=f or (not t1.e>=t1.a or e between f and t1.f))),t1.b) not in (13,17,c) or t1.a> -t1.d),19) else t1.c end from t1 where (not 17 not in (t1.b,11,b) and f>=t1.f) or 19<=t1.f),d)-11}
+} {0}
+do_test randexpr-2.2135 {
+  db eval {SELECT +(abs(~+13+(abs(t1.c)/abs(t1.c | coalesce((select t1.a from t1 where (select min(t1.c) from t1)<>(abs(t1.f | coalesce((select c from t1 where b=17),f)-b)/abs(coalesce((select max(d-t1.e) from t1 where not exists(select 1 from t1 where t1.e in (select f from t1 union select t1.d from t1))),19)*e+19)) or t1.a in (select 13 from t1 union select t1.d from t1) and (b)<= -t1.f),11))))/abs(e)) FROM t1 WHERE NOT (t1.e<>coalesce((select case 17 when f then coalesce((select max(t1.c) from t1 where coalesce((select coalesce((select ~e from t1 where not 17<=e | 17),11)+t1.d+t1.e from t1 where (e>=f or (not t1.e>=t1.a or e between f and t1.f))),t1.b) not in (13,17,c) or t1.a> -t1.d),19) else t1.c end from t1 where (not 17 not in (t1.b,11,b) and f>=t1.f) or 19<=t1.f),d)-11)}
+} {}
+do_test randexpr-2.2136 {
+  db eval {SELECT +(abs(~+13+(abs(t1.c)/abs(t1.c & coalesce((select t1.a from t1 where (select min(t1.c) from t1)<>(abs(t1.f & coalesce((select c from t1 where b=17),f)-b)/abs(coalesce((select max(d-t1.e) from t1 where not exists(select 1 from t1 where t1.e in (select f from t1 union select t1.d from t1))),19)*e+19)) or t1.a in (select 13 from t1 union select t1.d from t1) and (b)<= -t1.f),11))))/abs(e)) FROM t1 WHERE t1.e<>coalesce((select case 17 when f then coalesce((select max(t1.c) from t1 where coalesce((select coalesce((select ~e from t1 where not 17<=e | 17),11)+t1.d+t1.e from t1 where (e>=f or (not t1.e>=t1.a or e between f and t1.f))),t1.b) not in (13,17,c) or t1.a> -t1.d),19) else t1.c end from t1 where (not 17 not in (t1.b,11,b) and f>=t1.f) or 19<=t1.f),d)-11}
+} {0}
+do_test randexpr-2.2137 {
+  db eval {SELECT (case when not case when ((e not between d and case when not exists(select 1 from t1 where 11>=(a)*t1.d*11 or  -(d) not in (a,11,t1.f)) then f else ~f end or not d<>t1.e or t1.c in (a,t1.d,t1.c))) then case when  -b between 11 and b then (select count(distinct 17) from t1) when t1.e<>11 then f else d end else t1.d end<=a then (abs(t1.d)/abs(e)) when t1.d<t1.f then d else t1.e end) FROM t1 WHERE case when ~ -13*case when (not exists(select 1 from t1 where t1.c in (a,case case when 11<=17 then e else 13 end when 11 then 11 else b end,f))) then t1.a when not exists(select 1 from t1 where (t1.a>=t1.b and 17=t1.e)) then f else 19 end-t1.a*t1.a-e<=t1.b and 17 in (t1.d,13,t1.b) then c else t1.b end<>t1.b or not exists(select 1 from t1 where 17 between (d) and ( -(t1.d)))}
+} {0}
+do_test randexpr-2.2138 {
+  db eval {SELECT (case when not case when ((e not between d and case when not exists(select 1 from t1 where 11>=(a)*t1.d*11 or  -(d) not in (a,11,t1.f)) then f else ~f end or not d<>t1.e or t1.c in (a,t1.d,t1.c))) then case when  -b between 11 and b then (select count(distinct 17) from t1) when t1.e<>11 then f else d end else t1.d end<=a then (abs(t1.d)/abs(e)) when t1.d<t1.f then d else t1.e end) FROM t1 WHERE NOT (case when ~ -13*case when (not exists(select 1 from t1 where t1.c in (a,case case when 11<=17 then e else 13 end when 11 then 11 else b end,f))) then t1.a when not exists(select 1 from t1 where (t1.a>=t1.b and 17=t1.e)) then f else 19 end-t1.a*t1.a-e<=t1.b and 17 in (t1.d,13,t1.b) then c else t1.b end<>t1.b or not exists(select 1 from t1 where 17 between (d) and ( -(t1.d))))}
+} {}
+do_test randexpr-2.2139 {
+  db eval {SELECT t1.b+case when f+f not in (c+case when t1.f<>d then 11 when f between 11 and t1.d then 11 else 13 end,e,(t1.f)) and not exists(select 1 from t1 where (exists(select 1 from t1 where 19<11)) or 11 in ((t1.d),t1.c,b) and t1.b>13) and t1.b=t1.b then (abs(t1.d)/abs(13)) when a not between t1.c and 19 then t1.f else 19 end+13*17-t1.e FROM t1 WHERE not exists(select 1 from t1 where (exists(select 1 from t1 where t1.c>=19)))}
+} {}
+do_test randexpr-2.2140 {
+  db eval {SELECT t1.b+case when f+f not in (c+case when t1.f<>d then 11 when f between 11 and t1.d then 11 else 13 end,e,(t1.f)) and not exists(select 1 from t1 where (exists(select 1 from t1 where 19<11)) or 11 in ((t1.d),t1.c,b) and t1.b>13) and t1.b=t1.b then (abs(t1.d)/abs(13)) when a not between t1.c and 19 then t1.f else 19 end+13*17-t1.e FROM t1 WHERE NOT (not exists(select 1 from t1 where (exists(select 1 from t1 where t1.c>=19))))}
+} {-49}
+do_test randexpr-2.2141 {
+  db eval {SELECT (case when f>(select abs((((count(*)-+cast(avg(d) AS integer)))) | count(distinct a)) from t1) then case when (abs(coalesce((select max(t1.d) from t1 where coalesce((select max(case when t1.b between t1.f and a then  -f when f<> -b then t1.e else  -19 end) from t1 where not exists(select 1 from t1 where t1.c not in (t1.f,t1.c,t1.a))),t1.c)<=b), -t1.c))/abs(t1.a))<t1.b and exists(select 1 from t1 where t1.c between d and t1.f) then t1.a else t1.d end when a not in (e, -t1.f,t1.a) or f in (d,t1.c,(f)) and d in (t1.e,17,c) then 19 else (b) end)+t1.b FROM t1 WHERE t1.d>11}
+} {600}
+do_test randexpr-2.2142 {
+  db eval {SELECT (case when f>(select abs((((count(*)-+cast(avg(d) AS integer)))) | count(distinct a)) from t1) then case when (abs(coalesce((select max(t1.d) from t1 where coalesce((select max(case when t1.b between t1.f and a then  -f when f<> -b then t1.e else  -19 end) from t1 where not exists(select 1 from t1 where t1.c not in (t1.f,t1.c,t1.a))),t1.c)<=b), -t1.c))/abs(t1.a))<t1.b and exists(select 1 from t1 where t1.c between d and t1.f) then t1.a else t1.d end when a not in (e, -t1.f,t1.a) or f in (d,t1.c,(f)) and d in (t1.e,17,c) then 19 else (b) end)+t1.b FROM t1 WHERE NOT (t1.d>11)}
+} {}
+do_test randexpr-2.2143 {
+  db eval {SELECT (case when f>(select abs((((count(*)-+cast(avg(d) AS integer)))) & count(distinct a)) from t1) then case when (abs(coalesce((select max(t1.d) from t1 where coalesce((select max(case when t1.b between t1.f and a then  -f when f<> -b then t1.e else  -19 end) from t1 where not exists(select 1 from t1 where t1.c not in (t1.f,t1.c,t1.a))),t1.c)<=b), -t1.c))/abs(t1.a))<t1.b and exists(select 1 from t1 where t1.c between d and t1.f) then t1.a else t1.d end when a not in (e, -t1.f,t1.a) or f in (d,t1.c,(f)) and d in (t1.e,17,c) then 19 else (b) end)+t1.b FROM t1 WHERE t1.d>11}
+} {600}
+do_test randexpr-2.2144 {
+  db eval {SELECT (abs(+coalesce((select t1.f from t1 where not exists(select 1 from t1 where (((c)<=t1.a)))),f+(select count(distinct t1.b) from t1)*t1.b+case when case (select count(*) from t1) when coalesce((select max(t1.f-e+13) from t1 where (t1.e>a and 19 not in (13,b,19))),t1.c)+e then t1.b else t1.b end in (select  -c from t1 union select c from t1) then f when t1.a>t1.e then t1.c else d end+ -13))/abs((t1.f))) FROM t1 WHERE coalesce((select t1.f from t1 where a>=e),13) between  -c and t1.a}
+} {1}
+do_test randexpr-2.2145 {
+  db eval {SELECT (abs(+coalesce((select t1.f from t1 where not exists(select 1 from t1 where (((c)<=t1.a)))),f+(select count(distinct t1.b) from t1)*t1.b+case when case (select count(*) from t1) when coalesce((select max(t1.f-e+13) from t1 where (t1.e>a and 19 not in (13,b,19))),t1.c)+e then t1.b else t1.b end in (select  -c from t1 union select c from t1) then f when t1.a>t1.e then t1.c else d end+ -13))/abs((t1.f))) FROM t1 WHERE NOT (coalesce((select t1.f from t1 where a>=e),13) between  -c and t1.a)}
+} {}
+do_test randexpr-2.2146 {
+  db eval {SELECT coalesce((select max(~19) from t1 where t1.a between case t1.c when t1.b then t1.e else +~f end and case when 19 not in (e+b,t1.e-d,(select max(e) from t1)) then t1.a else case 13 when case e when e then t1.f else f end-a+t1.f then 19 else t1.b end+11 end-t1.d-17 or t1.b<>t1.a),13)-t1.b | 11 FROM t1 WHERE (+(17)-(select cast(avg( -((17)*case t1.b when 13+f then t1.f else t1.b end)) AS integer) | case case cast(avg(e) AS integer) when abs((case (~min(t1.c)) when max(t1.e) then cast(avg(t1.b) AS integer) else (( -count(*))) end-max(b)))+(min(t1.c)) then  -cast(avg(c) AS integer) else min(f) end when cast(avg(17) AS integer) then max(f) else (min(d)) end from t1)+e+c*19>=13)}
+} {-209}
+do_test randexpr-2.2147 {
+  db eval {SELECT coalesce((select max(~19) from t1 where t1.a between case t1.c when t1.b then t1.e else +~f end and case when 19 not in (e+b,t1.e-d,(select max(e) from t1)) then t1.a else case 13 when case e when e then t1.f else f end-a+t1.f then 19 else t1.b end+11 end-t1.d-17 or t1.b<>t1.a),13)-t1.b | 11 FROM t1 WHERE NOT ((+(17)-(select cast(avg( -((17)*case t1.b when 13+f then t1.f else t1.b end)) AS integer) | case case cast(avg(e) AS integer) when abs((case (~min(t1.c)) when max(t1.e) then cast(avg(t1.b) AS integer) else (( -count(*))) end-max(b)))+(min(t1.c)) then  -cast(avg(c) AS integer) else min(f) end when cast(avg(17) AS integer) then max(f) else (min(d)) end from t1)+e+c*19>=13))}
+} {}
+do_test randexpr-2.2148 {
+  db eval {SELECT coalesce((select max(~19) from t1 where t1.a between case t1.c when t1.b then t1.e else +~f end and case when 19 not in (e+b,t1.e-d,(select max(e) from t1)) then t1.a else case 13 when case e when e then t1.f else f end-a+t1.f then 19 else t1.b end+11 end-t1.d-17 or t1.b<>t1.a),13)-t1.b & 11 FROM t1 WHERE (+(17)-(select cast(avg( -((17)*case t1.b when 13+f then t1.f else t1.b end)) AS integer) | case case cast(avg(e) AS integer) when abs((case (~min(t1.c)) when max(t1.e) then cast(avg(t1.b) AS integer) else (( -count(*))) end-max(b)))+(min(t1.c)) then  -cast(avg(c) AS integer) else min(f) end when cast(avg(17) AS integer) then max(f) else (min(d)) end from t1)+e+c*19>=13)}
+} {0}
+do_test randexpr-2.2149 {
+  db eval {SELECT coalesce((select max(e) from t1 where 11>=coalesce((select max(b) from t1 where (abs(13)/abs(coalesce((select max(11) from t1 where f not between t1.a and t1.d),t1.d)))=case when 11 in (select (11 | d)-coalesce((select t1.e | coalesce((select t1.e from t1 where t1.f in (select 13 from t1 union select t1.c from t1) and d in (select t1.b from t1 union select 17 from t1)),(c))-17-19 from t1 where (t1.b)<=t1.b),(d)) from t1 union select t1.d from t1) then t1.a else (b) end),c)),19) FROM t1 WHERE ~t1.b not in (~++(select (case ~ -min( -11) when abs(count(*)*count(*)) then +~max(t1.a-11 | (19)) else case abs((cast(avg(f) AS integer)))-count(distinct t1.a) when (( -(max(a)))) then (min(t1.d)) else (min(a)) end end) from t1)+(abs(+t1.b)/abs(a))-t1.f+~t1.d+b+t1.c,13,e)}
+} {19}
+do_test randexpr-2.2150 {
+  db eval {SELECT coalesce((select max(e) from t1 where 11>=coalesce((select max(b) from t1 where (abs(13)/abs(coalesce((select max(11) from t1 where f not between t1.a and t1.d),t1.d)))=case when 11 in (select (11 | d)-coalesce((select t1.e | coalesce((select t1.e from t1 where t1.f in (select 13 from t1 union select t1.c from t1) and d in (select t1.b from t1 union select 17 from t1)),(c))-17-19 from t1 where (t1.b)<=t1.b),(d)) from t1 union select t1.d from t1) then t1.a else (b) end),c)),19) FROM t1 WHERE NOT (~t1.b not in (~++(select (case ~ -min( -11) when abs(count(*)*count(*)) then +~max(t1.a-11 | (19)) else case abs((cast(avg(f) AS integer)))-count(distinct t1.a) when (( -(max(a)))) then (min(t1.d)) else (min(a)) end end) from t1)+(abs(+t1.b)/abs(a))-t1.f+~t1.d+b+t1.c,13,e))}
+} {}
+do_test randexpr-2.2151 {
+  db eval {SELECT coalesce((select max(e) from t1 where 11>=coalesce((select max(b) from t1 where (abs(13)/abs(coalesce((select max(11) from t1 where f not between t1.a and t1.d),t1.d)))=case when 11 in (select (11 & d)-coalesce((select t1.e & coalesce((select t1.e from t1 where t1.f in (select 13 from t1 union select t1.c from t1) and d in (select t1.b from t1 union select 17 from t1)),(c))-17-19 from t1 where (t1.b)<=t1.b),(d)) from t1 union select t1.d from t1) then t1.a else (b) end),c)),19) FROM t1 WHERE ~t1.b not in (~++(select (case ~ -min( -11) when abs(count(*)*count(*)) then +~max(t1.a-11 | (19)) else case abs((cast(avg(f) AS integer)))-count(distinct t1.a) when (( -(max(a)))) then (min(t1.d)) else (min(a)) end end) from t1)+(abs(+t1.b)/abs(a))-t1.f+~t1.d+b+t1.c,13,e)}
+} {19}
+do_test randexpr-2.2152 {
+  db eval {SELECT (abs(+b)/abs(coalesce((select max(t1.b) from t1 where (not t1.a not between t1.c-(abs(b)/abs(d)) and c)),19)+19*t1.e | t1.e))-t1.f*coalesce((select case d when e*t1.d*f then 17 else t1.c+t1.c end from t1 where t1.b>=(select count(*) from t1)),+f+t1.b-t1.b+19- -b) FROM t1 WHERE not exists(select 1 from t1 where not exists(select 1 from t1 where not exists(select 1 from t1 where not (b>=(abs(case when case (select count(*) from t1) when t1.a then a+case t1.f when a+ -t1.a*t1.d then 19 else e end+t1.a+f else  -d end>=e then f when t1.b>=t1.d or not d<f or t1.f>t1.b then t1.e else d end)/abs(f)) or a>e))))}
+} {-360000}
+do_test randexpr-2.2153 {
+  db eval {SELECT (abs(+b)/abs(coalesce((select max(t1.b) from t1 where (not t1.a not between t1.c-(abs(b)/abs(d)) and c)),19)+19*t1.e | t1.e))-t1.f*coalesce((select case d when e*t1.d*f then 17 else t1.c+t1.c end from t1 where t1.b>=(select count(*) from t1)),+f+t1.b-t1.b+19- -b) FROM t1 WHERE NOT (not exists(select 1 from t1 where not exists(select 1 from t1 where not exists(select 1 from t1 where not (b>=(abs(case when case (select count(*) from t1) when t1.a then a+case t1.f when a+ -t1.a*t1.d then 19 else e end+t1.a+f else  -d end>=e then f when t1.b>=t1.d or not d<f or t1.f>t1.b then t1.e else d end)/abs(f)) or a>e)))))}
+} {}
+do_test randexpr-2.2154 {
+  db eval {SELECT (abs(+b)/abs(coalesce((select max(t1.b) from t1 where (not t1.a not between t1.c-(abs(b)/abs(d)) and c)),19)+19*t1.e & t1.e))-t1.f*coalesce((select case d when e*t1.d*f then 17 else t1.c+t1.c end from t1 where t1.b>=(select count(*) from t1)),+f+t1.b-t1.b+19- -b) FROM t1 WHERE not exists(select 1 from t1 where not exists(select 1 from t1 where not exists(select 1 from t1 where not (b>=(abs(case when case (select count(*) from t1) when t1.a then a+case t1.f when a+ -t1.a*t1.d then 19 else e end+t1.a+f else  -d end>=e then f when t1.b>=t1.d or not d<f or t1.f>t1.b then t1.e else d end)/abs(f)) or a>e))))}
+} {-360000}
+do_test randexpr-2.2155 {
+  db eval {SELECT (abs((select +abs(case count(*) when +max(19) then count(distinct b)*count(distinct (13+(select max(t1.d) from t1)* -a+t1.e*t1.b*a))+cast(avg(13) AS integer) | min(13)*cast(avg(c) AS integer)-count(distinct t1.e)-((min(f))) | cast(avg(17) AS integer)-( -cast(avg(( -t1.d)) AS integer))- -cast(avg(t1.d) AS integer) | count(*) else max(t1.f) end) from t1))/abs(t1.a)) FROM t1 WHERE b<=e or exists(select 1 from t1 where 17 in (select ~e+coalesce((select d from t1 where 11* -~+case when not (b) not between t1.f and b then  -~t1.c-11*+19+((b)) when f not between f and 11 then b else a end+11-(b)-t1.f<>17),d) from t1 union select t1.a from t1))}
+} {6}
+do_test randexpr-2.2156 {
+  db eval {SELECT (abs((select +abs(case count(*) when +max(19) then count(distinct b)*count(distinct (13+(select max(t1.d) from t1)* -a+t1.e*t1.b*a))+cast(avg(13) AS integer) | min(13)*cast(avg(c) AS integer)-count(distinct t1.e)-((min(f))) | cast(avg(17) AS integer)-( -cast(avg(( -t1.d)) AS integer))- -cast(avg(t1.d) AS integer) | count(*) else max(t1.f) end) from t1))/abs(t1.a)) FROM t1 WHERE NOT (b<=e or exists(select 1 from t1 where 17 in (select ~e+coalesce((select d from t1 where 11* -~+case when not (b) not between t1.f and b then  -~t1.c-11*+19+((b)) when f not between f and 11 then b else a end+11-(b)-t1.f<>17),d) from t1 union select t1.a from t1)))}
+} {}
+do_test randexpr-2.2157 {
+  db eval {SELECT (abs((select +abs(case count(*) when +max(19) then count(distinct b)*count(distinct (13+(select max(t1.d) from t1)* -a+t1.e*t1.b*a))+cast(avg(13) AS integer) & min(13)*cast(avg(c) AS integer)-count(distinct t1.e)-((min(f))) & cast(avg(17) AS integer)-( -cast(avg(( -t1.d)) AS integer))- -cast(avg(t1.d) AS integer) & count(*) else max(t1.f) end) from t1))/abs(t1.a)) FROM t1 WHERE b<=e or exists(select 1 from t1 where 17 in (select ~e+coalesce((select d from t1 where 11* -~+case when not (b) not between t1.f and b then  -~t1.c-11*+19+((b)) when f not between f and 11 then b else a end+11-(b)-t1.f<>17),d) from t1 union select t1.a from t1))}
+} {6}
+do_test randexpr-2.2158 {
+  db eval {SELECT coalesce((select max(11) from t1 where c=(abs(coalesce((select case when t1.c-t1.f+coalesce((select max(b) from t1 where case when (11<>17) then t1.c else c end in (select b from t1 union select t1.b from t1) and 13=11),f)+t1.b>=t1.f then 11 when c>t1.f then 19 else 19 end from t1 where exists(select 1 from t1 where not exists(select 1 from t1 where (e>19)))),t1.d))/abs(b)) and  -t1.d between t1.b and 13 or 17<>t1.e), -((11))) FROM t1 WHERE case when case when (not exists(select 1 from t1 where 19 not between case when coalesce((select b from t1 where (abs(t1.c)/abs(17))+t1.e between case when not exists(select 1 from t1 where not a<=t1.e) then t1.e when d<t1.c then 17 else  -d end and f),e)<13 then t1.a else t1.c end and e)) then +t1.a else d end not in (e,t1.d,t1.a) then t1.a when a in (select 19 from t1 union select t1.a from t1) then 19 else  -e end<t1.c}
+} {11}
+do_test randexpr-2.2159 {
+  db eval {SELECT coalesce((select max(11) from t1 where c=(abs(coalesce((select case when t1.c-t1.f+coalesce((select max(b) from t1 where case when (11<>17) then t1.c else c end in (select b from t1 union select t1.b from t1) and 13=11),f)+t1.b>=t1.f then 11 when c>t1.f then 19 else 19 end from t1 where exists(select 1 from t1 where not exists(select 1 from t1 where (e>19)))),t1.d))/abs(b)) and  -t1.d between t1.b and 13 or 17<>t1.e), -((11))) FROM t1 WHERE NOT (case when case when (not exists(select 1 from t1 where 19 not between case when coalesce((select b from t1 where (abs(t1.c)/abs(17))+t1.e between case when not exists(select 1 from t1 where not a<=t1.e) then t1.e when d<t1.c then 17 else  -d end and f),e)<13 then t1.a else t1.c end and e)) then +t1.a else d end not in (e,t1.d,t1.a) then t1.a when a in (select 19 from t1 union select t1.a from t1) then 19 else  -e end<t1.c)}
+} {}
+do_test randexpr-2.2160 {
+  db eval {SELECT coalesce((select ( -t1.e*(abs((case when not 13 not in (case coalesce((select max(t1.f) from t1 where not exists(select 1 from t1 where d between  -b and f)),11) when 11 then 19 else a end,t1.a,t1.a) then f-t1.f when t1.c in (select  -abs(count(*)+(max((t1.a)))) from t1 union select  -max((19)) from t1) then d else 13 end-19))/abs(t1.b))-t1.d*e-19) from t1 where t1.e not between 13 and c),19)*13 FROM t1 WHERE 19<>(t1.c)}
+} {-2600247}
+do_test randexpr-2.2161 {
+  db eval {SELECT coalesce((select ( -t1.e*(abs((case when not 13 not in (case coalesce((select max(t1.f) from t1 where not exists(select 1 from t1 where d between  -b and f)),11) when 11 then 19 else a end,t1.a,t1.a) then f-t1.f when t1.c in (select  -abs(count(*)+(max((t1.a)))) from t1 union select  -max((19)) from t1) then d else 13 end-19))/abs(t1.b))-t1.d*e-19) from t1 where t1.e not between 13 and c),19)*13 FROM t1 WHERE NOT (19<>(t1.c))}
+} {}
+do_test randexpr-2.2162 {
+  db eval {SELECT coalesce((select max(13) from t1 where f= -case when exists(select 1 from t1 where not t1.b>=e and b in (select b from t1 union select (+(t1.f-d)) from t1) or 19 in (select min(e) from t1 union select  -~+++ -abs(min(17*t1.d)) from t1) or not t1.a>a) then 13 else t1.c end+a | ~11),19) FROM t1 WHERE (exists(select 1 from t1 where t1.c>19)) and a>d-a}
+} {}
+do_test randexpr-2.2163 {
+  db eval {SELECT coalesce((select max(13) from t1 where f= -case when exists(select 1 from t1 where not t1.b>=e and b in (select b from t1 union select (+(t1.f-d)) from t1) or 19 in (select min(e) from t1 union select  -~+++ -abs(min(17*t1.d)) from t1) or not t1.a>a) then 13 else t1.c end+a | ~11),19) FROM t1 WHERE NOT ((exists(select 1 from t1 where t1.c>19)) and a>d-a)}
+} {19}
+do_test randexpr-2.2164 {
+  db eval {SELECT coalesce((select max(13) from t1 where f= -case when exists(select 1 from t1 where not t1.b>=e and b in (select b from t1 union select (+(t1.f-d)) from t1) or 19 in (select min(e) from t1 union select  -~+++ -abs(min(17*t1.d)) from t1) or not t1.a>a) then 13 else t1.c end+a & ~11),19) FROM t1 WHERE NOT ((exists(select 1 from t1 where t1.c>19)) and a>d-a)}
+} {19}
+do_test randexpr-2.2165 {
+  db eval {SELECT coalesce((select case when a between (select count(distinct 19) from t1) and case when d<t1.d and (select min(d)*min(a) from t1)<=t1.c+d then case 11 when 13 then t1.b else t1.a end else t1.d end+19 and exists(select 1 from t1 where t1.b between  -t1.e and t1.d) then f-d when 13 not between  -(c) and 13 then t1.c else 17 end from t1 where t1.e not in (c,f,t1.b)), -b) FROM t1 WHERE case 13*(abs(c)/abs(c*d-~t1.f-case coalesce((select +t1.f-a from t1 where b in (13,t1.f,f+19*+c)),b-a+coalesce((select max(c) from t1 where t1.f=d),d)-t1.a) when 13 then t1.d else t1.d end)) when 19 then 13 else  -11 end | 19=t1.c}
+} {}
+do_test randexpr-2.2166 {
+  db eval {SELECT coalesce((select case when a between (select count(distinct 19) from t1) and case when d<t1.d and (select min(d)*min(a) from t1)<=t1.c+d then case 11 when 13 then t1.b else t1.a end else t1.d end+19 and exists(select 1 from t1 where t1.b between  -t1.e and t1.d) then f-d when 13 not between  -(c) and 13 then t1.c else 17 end from t1 where t1.e not in (c,f,t1.b)), -b) FROM t1 WHERE NOT (case 13*(abs(c)/abs(c*d-~t1.f-case coalesce((select +t1.f-a from t1 where b in (13,t1.f,f+19*+c)),b-a+coalesce((select max(c) from t1 where t1.f=d),d)-t1.a) when 13 then t1.d else t1.d end)) when 19 then 13 else  -11 end | 19=t1.c)}
+} {200}
+do_test randexpr-2.2167 {
+  db eval {SELECT case 17 when  -b then e*c else (abs(coalesce((select max(coalesce((select coalesce((select max(case when t1.d<=19 and t1.d>e then b*t1.e else a end) from t1 where t1.e=t1.e),t1.f) from t1 where (d not between 13 and (f))),17)-d) from t1 where (11<>19)),t1.e)+t1.c)/abs(t1.e))*11*c-t1.d*t1.d+a end FROM t1 WHERE 13-e*t1.e<case when (coalesce((select max(c*13) from t1 where not exists(select 1 from t1 where (19+(coalesce((select coalesce((select max(a) from t1 where 17>=19),(abs(e)/abs((abs( -d+e)/abs(a))))+t1.a) from t1 where t1.b in (t1.e,(t1.e),t1.f)),f))=t1.e)) or b<=19),t1.b)<=13) then 13 else t1.f end-f}
+} {-159900}
+do_test randexpr-2.2168 {
+  db eval {SELECT case 17 when  -b then e*c else (abs(coalesce((select max(coalesce((select coalesce((select max(case when t1.d<=19 and t1.d>e then b*t1.e else a end) from t1 where t1.e=t1.e),t1.f) from t1 where (d not between 13 and (f))),17)-d) from t1 where (11<>19)),t1.e)+t1.c)/abs(t1.e))*11*c-t1.d*t1.d+a end FROM t1 WHERE NOT (13-e*t1.e<case when (coalesce((select max(c*13) from t1 where not exists(select 1 from t1 where (19+(coalesce((select coalesce((select max(a) from t1 where 17>=19),(abs(e)/abs((abs( -d+e)/abs(a))))+t1.a) from t1 where t1.b in (t1.e,(t1.e),t1.f)),f))=t1.e)) or b<=19),t1.b)<=13) then 13 else t1.f end-f)}
+} {}
+do_test randexpr-2.2169 {
+  db eval {SELECT case when case when e*(d-case a when 13 then (19) else d end) between 13 and f then f when exists(select 1 from t1 where 19<>t1.a) then e else b end in (select  -max(e)+min(11)-case ~~cast(avg(t1.c) AS integer) when max(19) then max(f) else  -cast(avg(f) AS integer) end from t1 union select  -max(13) from t1) and f>d and (t1.f=c) then t1.b else t1.c+ -t1.f end FROM t1 WHERE t1.e+11>=~t1.a-11}
+} {-300}
+do_test randexpr-2.2170 {
+  db eval {SELECT case when case when e*(d-case a when 13 then (19) else d end) between 13 and f then f when exists(select 1 from t1 where 19<>t1.a) then e else b end in (select  -max(e)+min(11)-case ~~cast(avg(t1.c) AS integer) when max(19) then max(f) else  -cast(avg(f) AS integer) end from t1 union select  -max(13) from t1) and f>d and (t1.f=c) then t1.b else t1.c+ -t1.f end FROM t1 WHERE NOT (t1.e+11>=~t1.a-11)}
+} {}
+do_test randexpr-2.2171 {
+  db eval {SELECT coalesce((select t1.f from t1 where not (abs(coalesce((select 17*13+(select cast(avg(t1.a) AS integer)-(count(distinct t1.c)*+cast(avg((select count(*) from t1)) AS integer))+count(*) from t1) from t1 where (select count(distinct t1.d*(((t1.d)))+f) from t1) in ( -b*t1.e-11,t1.d,d) and exists(select 1 from t1 where t1.d>c)),t1.e))/abs(b)) not in (t1.f,11,d)),t1.d) FROM t1 WHERE exists(select 1 from t1 where +t1.c-case when exists(select 1 from t1 where (select +case count(distinct case when 19*d in (select (cast(avg(11) AS integer)*cast(avg( -13) AS integer)) from t1 union select count(*) from t1) then t1.c else 13 end) when count(*) then count(*) else (min(t1.b)) end from t1)<>case when (not t1.f<b) or b>t1.d then case when f>=17 then t1.a else t1.e end else b end) then 11+t1.f when d<>17 then t1.e else a end- -13<>e) and t1.a<=17}
+} {}
+do_test randexpr-2.2172 {
+  db eval {SELECT coalesce((select t1.f from t1 where not (abs(coalesce((select 17*13+(select cast(avg(t1.a) AS integer)-(count(distinct t1.c)*+cast(avg((select count(*) from t1)) AS integer))+count(*) from t1) from t1 where (select count(distinct t1.d*(((t1.d)))+f) from t1) in ( -b*t1.e-11,t1.d,d) and exists(select 1 from t1 where t1.d>c)),t1.e))/abs(b)) not in (t1.f,11,d)),t1.d) FROM t1 WHERE NOT (exists(select 1 from t1 where +t1.c-case when exists(select 1 from t1 where (select +case count(distinct case when 19*d in (select (cast(avg(11) AS integer)*cast(avg( -13) AS integer)) from t1 union select count(*) from t1) then t1.c else 13 end) when count(*) then count(*) else (min(t1.b)) end from t1)<>case when (not t1.f<b) or b>t1.d then case when f>=17 then t1.a else t1.e end else b end) then 11+t1.f when d<>17 then t1.e else a end- -13<>e) and t1.a<=17)}
+} {400}
+do_test randexpr-2.2173 {
+  db eval {SELECT case when not (select  - -count(distinct t1.f)-(max(case when e not between f and t1.b+(13)+ -d-t1.a then t1.d else 11 end))+ -max(t1.b)*cast(avg(13) AS integer)-count(*) | (max(t1.e)) from t1)<>~t1.d then b when  -coalesce((select (abs(t1.e)/abs(t1.b)) from t1 where a<>b), - -17)<=t1.a then  -f else 11 end FROM t1 WHERE t1.a<>(select max(19) from t1)}
+} {-600}
+do_test randexpr-2.2174 {
+  db eval {SELECT case when not (select  - -count(distinct t1.f)-(max(case when e not between f and t1.b+(13)+ -d-t1.a then t1.d else 11 end))+ -max(t1.b)*cast(avg(13) AS integer)-count(*) | (max(t1.e)) from t1)<>~t1.d then b when  -coalesce((select (abs(t1.e)/abs(t1.b)) from t1 where a<>b), - -17)<=t1.a then  -f else 11 end FROM t1 WHERE NOT (t1.a<>(select max(19) from t1))}
+} {}
+do_test randexpr-2.2175 {
+  db eval {SELECT case when not (select  - -count(distinct t1.f)-(max(case when e not between f and t1.b+(13)+ -d-t1.a then t1.d else 11 end))+ -max(t1.b)*cast(avg(13) AS integer)-count(*) & (max(t1.e)) from t1)<>~t1.d then b when  -coalesce((select (abs(t1.e)/abs(t1.b)) from t1 where a<>b), - -17)<=t1.a then  -f else 11 end FROM t1 WHERE t1.a<>(select max(19) from t1)}
+} {-600}
+do_test randexpr-2.2176 {
+  db eval {SELECT case when case coalesce((select t1.d+a*11 from t1 where e<=t1.d),19) when 19 then  -t1.d-t1.a else t1.e end not between 17 and d then t1.f when not (t1.c<=e and ((13<>e or t1.c not between t1.c and 13)) or t1.c=17 and t1.a not in (t1.e, -t1.d,t1.b) and b<t1.e) and c>=b then t1.d else 13 end FROM t1 WHERE (case t1.f when t1.b then case when case when not exists(select 1 from t1 where (t1.d+t1.a in (c,coalesce((select max(t1.c) from t1 where exists(select 1 from t1 where (t1.a>=c))),+b), -t1.b))) then (select abs( -case ((abs( - - -count(*)+count(*)))) when min(d) then  -(cast(avg(t1.d) AS integer)) else cast(avg(e) AS integer) end | ((max((t1.f)))))+(min(t1.c)) from t1) else 11 end>f then 19 else t1.b end else b end)<=13 or (t1.f>b)}
+} {600}
+do_test randexpr-2.2177 {
+  db eval {SELECT case when case coalesce((select t1.d+a*11 from t1 where e<=t1.d),19) when 19 then  -t1.d-t1.a else t1.e end not between 17 and d then t1.f when not (t1.c<=e and ((13<>e or t1.c not between t1.c and 13)) or t1.c=17 and t1.a not in (t1.e, -t1.d,t1.b) and b<t1.e) and c>=b then t1.d else 13 end FROM t1 WHERE NOT ((case t1.f when t1.b then case when case when not exists(select 1 from t1 where (t1.d+t1.a in (c,coalesce((select max(t1.c) from t1 where exists(select 1 from t1 where (t1.a>=c))),+b), -t1.b))) then (select abs( -case ((abs( - - -count(*)+count(*)))) when min(d) then  -(cast(avg(t1.d) AS integer)) else cast(avg(e) AS integer) end | ((max((t1.f)))))+(min(t1.c)) from t1) else 11 end>f then 19 else t1.b end else b end)<=13 or (t1.f>b))}
+} {}
+do_test randexpr-2.2178 {
+  db eval {SELECT (((d)+t1.f))-case +t1.d when coalesce((select max(13) from t1 where (select  -max(17*case when d>=coalesce((select 19 from t1 where a<>t1.e),t1.b) then e when  -c<>d then e else t1.a end*t1.f)+ -case count(*) when (+cast(avg(c) AS integer)) then count(*) else  -count(distinct t1.f) end+count(*) from t1)<=(abs(t1.c)/abs(t1.f))),17) then 17 else t1.d end-t1.b FROM t1 WHERE ~d-c in (select cast(avg(19) AS integer) from t1 union select  - -abs((abs((cast(avg(f) AS integer)) | abs(count(distinct 19))))) from t1)}
+} {}
+do_test randexpr-2.2179 {
+  db eval {SELECT (((d)+t1.f))-case +t1.d when coalesce((select max(13) from t1 where (select  -max(17*case when d>=coalesce((select 19 from t1 where a<>t1.e),t1.b) then e when  -c<>d then e else t1.a end*t1.f)+ -case count(*) when (+cast(avg(c) AS integer)) then count(*) else  -count(distinct t1.f) end+count(*) from t1)<=(abs(t1.c)/abs(t1.f))),17) then 17 else t1.d end-t1.b FROM t1 WHERE NOT (~d-c in (select cast(avg(19) AS integer) from t1 union select  - -abs((abs((cast(avg(f) AS integer)) | abs(count(distinct 19))))) from t1))}
+} {400}
+do_test randexpr-2.2180 {
+  db eval {SELECT coalesce((select max(f+t1.c*b) from t1 where (select abs(cast(avg(f) AS integer)) from t1)-c*~ -b+ -coalesce((select max(t1.a) from t1 where (select cast(avg((c) | ~t1.d) AS integer) from t1) not between t1.d-+(abs(t1.d)/abs(t1.c))+d and 11 and 17>=t1.e),t1.e)-b in (t1.c,d,e)),a)+c FROM t1 WHERE 19*e not in (a,t1.d,coalesce((select coalesce((select max(t1.d) from t1 where (exists(select 1 from t1 where not exists(select 1 from t1 where e*case when ~c | f+11* -a in ( -t1.c,17,(t1.b)) then (f) when e=e or t1.d=f and (e)>(e) then (11) else a end+a*c in (select d from t1 union select  -11 from t1))))),t1.f) from t1 where t1.d<=d),13))}
+} {400}
+do_test randexpr-2.2181 {
+  db eval {SELECT coalesce((select max(f+t1.c*b) from t1 where (select abs(cast(avg(f) AS integer)) from t1)-c*~ -b+ -coalesce((select max(t1.a) from t1 where (select cast(avg((c) | ~t1.d) AS integer) from t1) not between t1.d-+(abs(t1.d)/abs(t1.c))+d and 11 and 17>=t1.e),t1.e)-b in (t1.c,d,e)),a)+c FROM t1 WHERE NOT (19*e not in (a,t1.d,coalesce((select coalesce((select max(t1.d) from t1 where (exists(select 1 from t1 where not exists(select 1 from t1 where e*case when ~c | f+11* -a in ( -t1.c,17,(t1.b)) then (f) when e=e or t1.d=f and (e)>(e) then (11) else a end+a*c in (select d from t1 union select  -11 from t1))))),t1.f) from t1 where t1.d<=d),13)))}
+} {}
+do_test randexpr-2.2182 {
+  db eval {SELECT coalesce((select max(f+t1.c*b) from t1 where (select abs(cast(avg(f) AS integer)) from t1)-c*~ -b+ -coalesce((select max(t1.a) from t1 where (select cast(avg((c) & ~t1.d) AS integer) from t1) not between t1.d-+(abs(t1.d)/abs(t1.c))+d and 11 and 17>=t1.e),t1.e)-b in (t1.c,d,e)),a)+c FROM t1 WHERE 19*e not in (a,t1.d,coalesce((select coalesce((select max(t1.d) from t1 where (exists(select 1 from t1 where not exists(select 1 from t1 where e*case when ~c | f+11* -a in ( -t1.c,17,(t1.b)) then (f) when e=e or t1.d=f and (e)>(e) then (11) else a end+a*c in (select d from t1 union select  -11 from t1))))),t1.f) from t1 where t1.d<=d),13))}
+} {400}
+do_test randexpr-2.2183 {
+  db eval {SELECT c*~case ((abs(t1.b)/abs(t1.b))) when c then e else t1.c end-(case when (c)>=case coalesce((select max((abs(d)/abs(c))) from t1 where 13 not in (a-t1.e-(select count(*) | min(e)+min(c) from t1)*19*t1.b,11,a)),e) when e then b else t1.d end then d when 17<11 then c else t1.d end) | t1.f FROM t1 WHERE case when not (abs(t1.d | (abs( - -coalesce((select max(coalesce((select c+e from t1 where not t1.b in ((c),b,(f))),t1.b)) from t1 where 11=b),t1.f)+13*t1.f*e)/abs(t1.e)))/abs(t1.b))>=c then coalesce((select (t1.c) from t1 where t1.e in (11,e,t1.a)),a) when 13<=t1.b then t1.f else t1.d end in (select e from t1 union select (t1.d) from t1)}
+} {}
+do_test randexpr-2.2184 {
+  db eval {SELECT c*~case ((abs(t1.b)/abs(t1.b))) when c then e else t1.c end-(case when (c)>=case coalesce((select max((abs(d)/abs(c))) from t1 where 13 not in (a-t1.e-(select count(*) | min(e)+min(c) from t1)*19*t1.b,11,a)),e) when e then b else t1.d end then d when 17<11 then c else t1.d end) | t1.f FROM t1 WHERE NOT (case when not (abs(t1.d | (abs( - -coalesce((select max(coalesce((select c+e from t1 where not t1.b in ((c),b,(f))),t1.b)) from t1 where 11=b),t1.f)+13*t1.f*e)/abs(t1.e)))/abs(t1.b))>=c then coalesce((select (t1.c) from t1 where t1.e in (11,e,t1.a)),a) when 13<=t1.b then t1.f else t1.d end in (select e from t1 union select (t1.d) from t1))}
+} {-90116}
+do_test randexpr-2.2185 {
+  db eval {SELECT c*~case ((abs(t1.b)/abs(t1.b))) when c then e else t1.c end-(case when (c)>=case coalesce((select max((abs(d)/abs(c))) from t1 where 13 not in (a-t1.e-(select count(*) & min(e)+min(c) from t1)*19*t1.b,11,a)),e) when e then b else t1.d end then d when 17<11 then c else t1.d end) & t1.f FROM t1 WHERE NOT (case when not (abs(t1.d | (abs( - -coalesce((select max(coalesce((select c+e from t1 where not t1.b in ((c),b,(f))),t1.b)) from t1 where 11=b),t1.f)+13*t1.f*e)/abs(t1.e)))/abs(t1.b))>=c then coalesce((select (t1.c) from t1 where t1.e in (11,e,t1.a)),a) when 13<=t1.b then t1.f else t1.d end in (select e from t1 union select (t1.d) from t1))}
+} {16}
+do_test randexpr-2.2186 {
+  db eval {SELECT case when a+13*+ -~case when 17=t1.c*17 then 19 | (t1.b) when f+t1.e+(d)+b+c not between (d) and e or (a between t1.b and t1.a) then 17 else a end-17-(e)<=17 then b when c in (select 17 from t1 union select t1.a from t1) then c else t1.e end FROM t1 WHERE e-coalesce((select f-case 17+t1.a*(abs(t1.e)/abs((abs(coalesce((select max(+ -case when t1.a>=d then c else t1.e end-d) from t1 where (not exists(select 1 from t1 where (t1.d in ( -f,d,t1.b))) or  -t1.f not between  -b and t1.b)),11))/abs(13)))) when 13 then d else t1.f end from t1 where t1.e in ((19),t1.e,17) or e>=t1.d),e)<>17 or 19<=19}
+} {200}
+do_test randexpr-2.2187 {
+  db eval {SELECT case when a+13*+ -~case when 17=t1.c*17 then 19 | (t1.b) when f+t1.e+(d)+b+c not between (d) and e or (a between t1.b and t1.a) then 17 else a end-17-(e)<=17 then b when c in (select 17 from t1 union select t1.a from t1) then c else t1.e end FROM t1 WHERE NOT (e-coalesce((select f-case 17+t1.a*(abs(t1.e)/abs((abs(coalesce((select max(+ -case when t1.a>=d then c else t1.e end-d) from t1 where (not exists(select 1 from t1 where (t1.d in ( -f,d,t1.b))) or  -t1.f not between  -b and t1.b)),11))/abs(13)))) when 13 then d else t1.f end from t1 where t1.e in ((19),t1.e,17) or e>=t1.d),e)<>17 or 19<=19)}
+} {}
+do_test randexpr-2.2188 {
+  db eval {SELECT case when a+13*+ -~case when 17=t1.c*17 then 19 & (t1.b) when f+t1.e+(d)+b+c not between (d) and e or (a between t1.b and t1.a) then 17 else a end-17-(e)<=17 then b when c in (select 17 from t1 union select t1.a from t1) then c else t1.e end FROM t1 WHERE e-coalesce((select f-case 17+t1.a*(abs(t1.e)/abs((abs(coalesce((select max(+ -case when t1.a>=d then c else t1.e end-d) from t1 where (not exists(select 1 from t1 where (t1.d in ( -f,d,t1.b))) or  -t1.f not between  -b and t1.b)),11))/abs(13)))) when 13 then d else t1.f end from t1 where t1.e in ((19),t1.e,17) or e>=t1.d),e)<>17 or 19<=19}
+} {200}
+do_test randexpr-2.2189 {
+  db eval {SELECT 17-t1.a*(select abs(~count(*)*abs(count(distinct a)) | (~count(distinct case (a* -coalesce((select a from t1 where (13 in (select max((abs(t1.e)/abs(case when not exists(select 1 from t1 where (b<>c)) then (11)-t1.f-e else e end))) from t1 union select (count(distinct 11)) from t1))),t1.b)+11) when (17) then e else f end))) from t1) FROM t1 WHERE 13>case (e) when t1.a then t1.a else 11 end-t1.b}
+} {-183}
+do_test randexpr-2.2190 {
+  db eval {SELECT 17-t1.a*(select abs(~count(*)*abs(count(distinct a)) | (~count(distinct case (a* -coalesce((select a from t1 where (13 in (select max((abs(t1.e)/abs(case when not exists(select 1 from t1 where (b<>c)) then (11)-t1.f-e else e end))) from t1 union select (count(distinct 11)) from t1))),t1.b)+11) when (17) then e else f end))) from t1) FROM t1 WHERE NOT (13>case (e) when t1.a then t1.a else 11 end-t1.b)}
+} {}
+do_test randexpr-2.2191 {
+  db eval {SELECT 17-t1.a*(select abs(~count(*)*abs(count(distinct a)) & (~count(distinct case (a* -coalesce((select a from t1 where (13 in (select max((abs(t1.e)/abs(case when not exists(select 1 from t1 where (b<>c)) then (11)-t1.f-e else e end))) from t1 union select (count(distinct 11)) from t1))),t1.b)+11) when (17) then e else f end))) from t1) FROM t1 WHERE 13>case (e) when t1.a then t1.a else 11 end-t1.b}
+} {-183}
+do_test randexpr-2.2192 {
+  db eval {SELECT case when t1.b= -b then e else (select  -(count(distinct t1.a))*max(c)-count(*)+count(distinct t1.b+d)*min(t1.f-case when 19 in (select t1.d from t1 union select e from t1) then 17 when f<=t1.c then t1.b else e end-(d)*c)-count(distinct t1.d)*case +max(f) when max(17) | max(d) |  -(cast(avg(d) AS integer)) then  -cast(avg(11) AS integer) else  -count(distinct 11) end*min(t1.d) from t1) end FROM t1 WHERE t1.f>=f}
+} {-119801}
+do_test randexpr-2.2193 {
+  db eval {SELECT case when t1.b= -b then e else (select  -(count(distinct t1.a))*max(c)-count(*)+count(distinct t1.b+d)*min(t1.f-case when 19 in (select t1.d from t1 union select e from t1) then 17 when f<=t1.c then t1.b else e end-(d)*c)-count(distinct t1.d)*case +max(f) when max(17) | max(d) |  -(cast(avg(d) AS integer)) then  -cast(avg(11) AS integer) else  -count(distinct 11) end*min(t1.d) from t1) end FROM t1 WHERE NOT (t1.f>=f)}
+} {}
+do_test randexpr-2.2194 {
+  db eval {SELECT case when t1.b= -b then e else (select  -(count(distinct t1.a))*max(c)-count(*)+count(distinct t1.b+d)*min(t1.f-case when 19 in (select t1.d from t1 union select e from t1) then 17 when f<=t1.c then t1.b else e end-(d)*c)-count(distinct t1.d)*case +max(f) when max(17) & max(d) &  -(cast(avg(d) AS integer)) then  -cast(avg(11) AS integer) else  -count(distinct 11) end*min(t1.d) from t1) end FROM t1 WHERE t1.f>=f}
+} {-119801}
+do_test randexpr-2.2195 {
+  db eval {SELECT  -~f | (abs(13+t1.b)/abs((select max(t1.b | t1.f+ -17-11) | +case min(e) when count(*) | case (~ -min(c)*cast(avg(19) AS integer)) when  -count(*) then min(a) else min(13) end then  -((max(t1.c))) else max(e) end-(count(distinct  -t1.a)) from t1)))+~(abs((abs(case when a<>19 then t1.a when f>17 then a else b end)/abs(t1.b)))/abs(t1.f)) FROM t1 WHERE (17 between t1.f*(abs(b)/abs((abs((select max(17) from t1) | 17)/abs(13))+c-coalesce((select max(d) from t1 where d between f-a-11-d and a+t1.a+d-t1.b+17+13),case when a not between a and t1.b then t1.d when t1.d not in ((e),a,d) then c else b end*d))) and b and t1.e> -17)}
+} {}
+do_test randexpr-2.2196 {
+  db eval {SELECT  -~f | (abs(13+t1.b)/abs((select max(t1.b | t1.f+ -17-11) | +case min(e) when count(*) | case (~ -min(c)*cast(avg(19) AS integer)) when  -count(*) then min(a) else min(13) end then  -((max(t1.c))) else max(e) end-(count(distinct  -t1.a)) from t1)))+~(abs((abs(case when a<>19 then t1.a when f>17 then a else b end)/abs(t1.b)))/abs(t1.f)) FROM t1 WHERE NOT ((17 between t1.f*(abs(b)/abs((abs((select max(17) from t1) | 17)/abs(13))+c-coalesce((select max(d) from t1 where d between f-a-11-d and a+t1.a+d-t1.b+17+13),case when a not between a and t1.b then t1.d when t1.d not in ((e),a,d) then c else b end*d))) and b and t1.e> -17))}
+} {-1}
+do_test randexpr-2.2197 {
+  db eval {SELECT (select abs(abs( -case case ~count(distinct t1.f+(t1.f)+coalesce((select (abs(t1.e+(b)+a)/abs(11))+b from t1 where exists(select 1 from t1 where t1.f not in (t1.b,(b),e) and not (t1.b)>c)),f)) when ~count(*)-min(t1.f) then +(count(*))*( -count(*)-max(t1.a)) else min(11) end when count(distinct (f)) then  -count(distinct a) else count(*) end | count(distinct 13))) from t1) FROM t1 WHERE exists(select 1 from t1 where case when t1.f>(abs(b)/abs(a)) then ~case when t1.e+13-b<=(coalesce((select max(11) from t1 where (select abs(min(11)) from t1) in (select case d when f then 17 else t1.f end from t1 union select t1.f from t1)),b)*13)-19 then 11 when not 19 between t1.c and t1.b then a else e end-t1.a when (t1.a) not between b and t1.f then t1.a else c end=t1.e)}
+} {}
+do_test randexpr-2.2198 {
+  db eval {SELECT (select abs(abs( -case case ~count(distinct t1.f+(t1.f)+coalesce((select (abs(t1.e+(b)+a)/abs(11))+b from t1 where exists(select 1 from t1 where t1.f not in (t1.b,(b),e) and not (t1.b)>c)),f)) when ~count(*)-min(t1.f) then +(count(*))*( -count(*)-max(t1.a)) else min(11) end when count(distinct (f)) then  -count(distinct a) else count(*) end | count(distinct 13))) from t1) FROM t1 WHERE NOT (exists(select 1 from t1 where case when t1.f>(abs(b)/abs(a)) then ~case when t1.e+13-b<=(coalesce((select max(11) from t1 where (select abs(min(11)) from t1) in (select case d when f then 17 else t1.f end from t1 union select t1.f from t1)),b)*13)-19 then 11 when not 19 between t1.c and t1.b then a else e end-t1.a when (t1.a) not between b and t1.f then t1.a else c end=t1.e))}
+} {1}
+do_test randexpr-2.2199 {
+  db eval {SELECT (select abs(abs( -case case ~count(distinct t1.f+(t1.f)+coalesce((select (abs(t1.e+(b)+a)/abs(11))+b from t1 where exists(select 1 from t1 where t1.f not in (t1.b,(b),e) and not (t1.b)>c)),f)) when ~count(*)-min(t1.f) then +(count(*))*( -count(*)-max(t1.a)) else min(11) end when count(distinct (f)) then  -count(distinct a) else count(*) end & count(distinct 13))) from t1) FROM t1 WHERE NOT (exists(select 1 from t1 where case when t1.f>(abs(b)/abs(a)) then ~case when t1.e+13-b<=(coalesce((select max(11) from t1 where (select abs(min(11)) from t1) in (select case d when f then 17 else t1.f end from t1 union select t1.f from t1)),b)*13)-19 then 11 when not 19 between t1.c and t1.b then a else e end-t1.a when (t1.a) not between b and t1.f then t1.a else c end=t1.e))}
+} {1}
+do_test randexpr-2.2200 {
+  db eval {SELECT 19 | t1.a*(select case max(case when t1.b*17>=t1.b then coalesce((select max(e) from t1 where e in (select count(*) from t1 union select count(distinct t1.f) from t1)),d) when t1.a in (select min(11) from t1 union select (( -( -max(t1.f)))) from t1) and 17 in (select count(distinct 17) from t1 union select  -count(distinct d) from t1) and (d)<>t1.c and t1.c not between b and b then a else 11 end)+cast(avg(t1.a) AS integer) when ~count(distinct t1.e) then count(distinct d) else count(distinct e) end from t1) | e*t1.b-t1.d FROM t1 WHERE (((abs(19)/abs(case ~c*d+(abs(e)/abs((coalesce((select case when (f in (select count(*) from t1 union select  -min(d) from t1)) then case when  -t1.f between t1.c and t1.f then b when 11<>a then t1.a else t1.c end when 13=13 then 13 else t1.a end from t1 where 19 not between 11 and t1.b or t1.b not in ((e),(b),c)),a)- -((t1.c))-c)))+t1.b+17 when 13 then ((13)) else t1.f end*t1.b)) in ( -17,t1.a,11)))}
+} {}
+do_test randexpr-2.2201 {
+  db eval {SELECT 19 | t1.a*(select case max(case when t1.b*17>=t1.b then coalesce((select max(e) from t1 where e in (select count(*) from t1 union select count(distinct t1.f) from t1)),d) when t1.a in (select min(11) from t1 union select (( -( -max(t1.f)))) from t1) and 17 in (select count(distinct 17) from t1 union select  -count(distinct d) from t1) and (d)<>t1.c and t1.c not between b and b then a else 11 end)+cast(avg(t1.a) AS integer) when ~count(distinct t1.e) then count(distinct d) else count(distinct e) end from t1) | e*t1.b-t1.d FROM t1 WHERE NOT ((((abs(19)/abs(case ~c*d+(abs(e)/abs((coalesce((select case when (f in (select count(*) from t1 union select  -min(d) from t1)) then case when  -t1.f between t1.c and t1.f then b when 11<>a then t1.a else t1.c end when 13=13 then 13 else t1.a end from t1 where 19 not between 11 and t1.b or t1.b not in ((e),(b),c)),a)- -((t1.c))-c)))+t1.b+17 when 13 then ((13)) else t1.f end*t1.b)) in ( -17,t1.a,11))))}
+} {99703}
+do_test randexpr-2.2202 {
+  db eval {SELECT 19 & t1.a*(select case max(case when t1.b*17>=t1.b then coalesce((select max(e) from t1 where e in (select count(*) from t1 union select count(distinct t1.f) from t1)),d) when t1.a in (select min(11) from t1 union select (( -( -max(t1.f)))) from t1) and 17 in (select count(distinct 17) from t1 union select  -count(distinct d) from t1) and (d)<>t1.c and t1.c not between b and b then a else 11 end)+cast(avg(t1.a) AS integer) when ~count(distinct t1.e) then count(distinct d) else count(distinct e) end from t1) & e*t1.b-t1.d FROM t1 WHERE NOT ((((abs(19)/abs(case ~c*d+(abs(e)/abs((coalesce((select case when (f in (select count(*) from t1 union select  -min(d) from t1)) then case when  -t1.f between t1.c and t1.f then b when 11<>a then t1.a else t1.c end when 13=13 then 13 else t1.a end from t1 where 19 not between 11 and t1.b or t1.b not in ((e),(b),c)),a)- -((t1.c))-c)))+t1.b+17 when 13 then ((13)) else t1.f end*t1.b)) in ( -17,t1.a,11))))}
+} {0}
+do_test randexpr-2.2203 {
+  db eval {SELECT c-coalesce((select  -coalesce((select max(case when (abs(~~case when case when t1.e<=e and t1.f>t1.d then b when t1.a<>t1.a then 17 else 17 end+t1.c>=t1.a then (c) when c not in (f,e,t1.c) then t1.d else 13 end)/abs(t1.a))<t1.b then t1.e when c<=t1.a then b else d end) from t1 where (19) not in (13,t1.e,f)),17) from t1 where 19>c),t1.a)*19 FROM t1 WHERE (17) | case when 19 not in ((case when (e*19=f) then case t1.f when a then 13 else t1.d end when b<t1.f then f else a end)*t1.d,c, -t1.f) then t1.f when (e=(d) and 19<>t1.b) then f else a end in (select c from t1 union select  -13 from t1) or 17 in (select 19 from t1 union select d from t1) and t1.b in (c,b,19) and t1.b>=( -b)}
+} {}
+do_test randexpr-2.2204 {
+  db eval {SELECT c-coalesce((select  -coalesce((select max(case when (abs(~~case when case when t1.e<=e and t1.f>t1.d then b when t1.a<>t1.a then 17 else 17 end+t1.c>=t1.a then (c) when c not in (f,e,t1.c) then t1.d else 13 end)/abs(t1.a))<t1.b then t1.e when c<=t1.a then b else d end) from t1 where (19) not in (13,t1.e,f)),17) from t1 where 19>c),t1.a)*19 FROM t1 WHERE NOT ((17) | case when 19 not in ((case when (e*19=f) then case t1.f when a then 13 else t1.d end when b<t1.f then f else a end)*t1.d,c, -t1.f) then t1.f when (e=(d) and 19<>t1.b) then f else a end in (select c from t1 union select  -13 from t1) or 17 in (select 19 from t1 union select d from t1) and t1.b in (c,b,19) and t1.b>=( -b))}
+} {-1600}
+do_test randexpr-2.2205 {
+  db eval {SELECT 13+case when not (t1.d in (11,f,t1.a)) then coalesce((select +t1.e from t1 where case t1.e when t1.b then 19+t1.a+~e+a*t1.a else 11 end not between 19 and 19),(abs(t1.f-case when (19)<t1.a and d=t1.d then a else a end-f)/abs(13))*c+t1.c)+c else 19 end*t1.e FROM t1 WHERE t1.e in (select +count(distinct a-(select count(*)+count(distinct (abs((select max(coalesce((select case d++11+(t1.c-t1.d-t1.e*t1.e) when t1.a then t1.b else t1.b end from t1 where f in (select (abs(case when e not between  -t1.a and f then 11 when t1.b>=17 then t1.c else t1.f end)/abs(19)) from t1 union select c from t1)), -d)) from t1))/abs(t1.d))) from t1)*(c) | 11+t1.c*t1.b) from t1 union select cast(avg(t1.c) AS integer) from t1)}
+} {}
+do_test randexpr-2.2206 {
+  db eval {SELECT 13+case when not (t1.d in (11,f,t1.a)) then coalesce((select +t1.e from t1 where case t1.e when t1.b then 19+t1.a+~e+a*t1.a else 11 end not between 19 and 19),(abs(t1.f-case when (19)<t1.a and d=t1.d then a else a end-f)/abs(13))*c+t1.c)+c else 19 end*t1.e FROM t1 WHERE NOT (t1.e in (select +count(distinct a-(select count(*)+count(distinct (abs((select max(coalesce((select case d++11+(t1.c-t1.d-t1.e*t1.e) when t1.a then t1.b else t1.b end from t1 where f in (select (abs(case when e not between  -t1.a and f then 11 when t1.b>=17 then t1.c else t1.f end)/abs(19)) from t1 union select c from t1)), -d)) from t1))/abs(t1.d))) from t1)*(c) | 11+t1.c*t1.b) from t1 union select cast(avg(t1.c) AS integer) from t1))}
+} {400013}
+do_test randexpr-2.2207 {
+  db eval {SELECT case when  -11-t1.b-f-t1.b>~c then t1.e else case when t1.d<>b*~17+t1.d*(select max(+(select count(distinct t1.a)+ -cast(avg(d) AS integer)*max(13) from t1)) from t1) or (abs(c)/abs(c)) not in (11,d,t1.c) then 13 when d in (select f from t1 union select b from t1) then t1.f else  -t1.a end+ -f end FROM t1 WHERE ~t1.b*19-d not between ~b and t1.f}
+} {-587}
+do_test randexpr-2.2208 {
+  db eval {SELECT case when  -11-t1.b-f-t1.b>~c then t1.e else case when t1.d<>b*~17+t1.d*(select max(+(select count(distinct t1.a)+ -cast(avg(d) AS integer)*max(13) from t1)) from t1) or (abs(c)/abs(c)) not in (11,d,t1.c) then 13 when d in (select f from t1 union select b from t1) then t1.f else  -t1.a end+ -f end FROM t1 WHERE NOT (~t1.b*19-d not between ~b and t1.f)}
+} {}
+do_test randexpr-2.2209 {
+  db eval {SELECT coalesce((select t1.b from t1 where coalesce((select max(coalesce((select max(t1.a) from t1 where t1.c=t1.e),case b-f when f then e else 13 end-t1.d)) from t1 where not exists(select 1 from t1 where  -t1.f>=17)),a)*(19) in (select max(d) from t1 union select case  -count(*) when +count(distinct (t1.f)) then min(t1.d) else count(*) end from t1) and a<=f and d not between b and 19 and not exists(select 1 from t1 where b between t1.c and e or c<>t1.f)),17) FROM t1 WHERE t1.a-19<>c*d}
+} {17}
+do_test randexpr-2.2210 {
+  db eval {SELECT coalesce((select t1.b from t1 where coalesce((select max(coalesce((select max(t1.a) from t1 where t1.c=t1.e),case b-f when f then e else 13 end-t1.d)) from t1 where not exists(select 1 from t1 where  -t1.f>=17)),a)*(19) in (select max(d) from t1 union select case  -count(*) when +count(distinct (t1.f)) then min(t1.d) else count(*) end from t1) and a<=f and d not between b and 19 and not exists(select 1 from t1 where b between t1.c and e or c<>t1.f)),17) FROM t1 WHERE NOT (t1.a-19<>c*d)}
+} {}
+do_test randexpr-2.2211 {
+  db eval {SELECT (coalesce((select case (select ~count(*) | max(b+t1.b)+case max((abs(+coalesce((select max(f) from t1 where not (17=e)),t1.f))/abs(b))*a) when  -~~ -(cast(avg(13) AS integer)) | count(*) then min(13) else count(*) end-count(distinct d) from t1) when 17+t1.d then t1.a else 13 end from t1 where e not between 13 and 11),11)+t1.e+b) FROM t1 WHERE not f in (select t1.e from t1 union select t1.f from t1) or 13 not in (t1.b | t1.e,t1.f,d) or (abs(f)/abs(+(abs(f+(select max(case when ((13<>t1.c)) then 13 else t1.c end) | ~min(t1.a)+cast(avg(a) AS integer) from t1)*(d)-b)/abs(d))*e))-t1.b not in (t1.c,f,t1.d) and t1.b<>t1.f}
+} {713}
+do_test randexpr-2.2212 {
+  db eval {SELECT (coalesce((select case (select ~count(*) | max(b+t1.b)+case max((abs(+coalesce((select max(f) from t1 where not (17=e)),t1.f))/abs(b))*a) when  -~~ -(cast(avg(13) AS integer)) | count(*) then min(13) else count(*) end-count(distinct d) from t1) when 17+t1.d then t1.a else 13 end from t1 where e not between 13 and 11),11)+t1.e+b) FROM t1 WHERE NOT (not f in (select t1.e from t1 union select t1.f from t1) or 13 not in (t1.b | t1.e,t1.f,d) or (abs(f)/abs(+(abs(f+(select max(case when ((13<>t1.c)) then 13 else t1.c end) | ~min(t1.a)+cast(avg(a) AS integer) from t1)*(d)-b)/abs(d))*e))-t1.b not in (t1.c,f,t1.d) and t1.b<>t1.f)}
+} {}
+do_test randexpr-2.2213 {
+  db eval {SELECT (coalesce((select case (select ~count(*) & max(b+t1.b)+case max((abs(+coalesce((select max(f) from t1 where not (17=e)),t1.f))/abs(b))*a) when  -~~ -(cast(avg(13) AS integer)) & count(*) then min(13) else count(*) end-count(distinct d) from t1) when 17+t1.d then t1.a else 13 end from t1 where e not between 13 and 11),11)+t1.e+b) FROM t1 WHERE not f in (select t1.e from t1 union select t1.f from t1) or 13 not in (t1.b | t1.e,t1.f,d) or (abs(f)/abs(+(abs(f+(select max(case when ((13<>t1.c)) then 13 else t1.c end) | ~min(t1.a)+cast(avg(a) AS integer) from t1)*(d)-b)/abs(d))*e))-t1.b not in (t1.c,f,t1.d) and t1.b<>t1.f}
+} {713}
+do_test randexpr-2.2214 {
+  db eval {SELECT t1.b-c*a*t1.b+ -f | (case when 13<f then d else t1.a+case (select +min(a) from t1) when case when a<=d*a | e then b when not f not between e and 17 or not 19=coalesce((select 13 from t1 where t1.f in (t1.b,t1.d,t1.a)),d) then 11 else (13) end then 11 else (a) end end-b) FROM t1 WHERE exists(select 1 from t1 where t1.a>17)}
+} {-6000392}
+do_test randexpr-2.2215 {
+  db eval {SELECT t1.b-c*a*t1.b+ -f | (case when 13<f then d else t1.a+case (select +min(a) from t1) when case when a<=d*a | e then b when not f not between e and 17 or not 19=coalesce((select 13 from t1 where t1.f in (t1.b,t1.d,t1.a)),d) then 11 else (13) end then 11 else (a) end end-b) FROM t1 WHERE NOT (exists(select 1 from t1 where t1.a>17))}
+} {}
+do_test randexpr-2.2216 {
+  db eval {SELECT t1.b-c*a*t1.b+ -f & (case when 13<f then d else t1.a+case (select +min(a) from t1) when case when a<=d*a & e then b when not f not between e and 17 or not 19=coalesce((select 13 from t1 where t1.f in (t1.b,t1.d,t1.a)),d) then 11 else (13) end then 11 else (a) end end-b) FROM t1 WHERE exists(select 1 from t1 where t1.a>17)}
+} {192}
+do_test randexpr-2.2217 {
+  db eval {SELECT ~(select (abs(cast(avg(((b)-d*t1.a-c+17+f+e+ -17)) AS integer))) from t1)*t1.c++ -(11-t1.b*~f-e*t1.b)-coalesce((select max(case when not c=13 then 17 else b end) from t1 where (t1.a>17)),c) |  -f-f FROM t1 WHERE a+coalesce((select max(coalesce((select max(f) from t1 where ((not b in (select t1.b from t1 union select (select  -cast(avg(t1.b) AS integer) from t1) from t1)) or not t1.d= -t1.c and 19<=t1.c)),t1.f)-coalesce((select c from t1 where d<=t1.a), -e)) from t1 where d in (select t1.d from t1 union select t1.d from t1)),t1.d)-a | t1.b>(f) or t1.d between 19 and t1.c and exists(select 1 from t1 where b=13) and not 13 not in (t1.d,(c),d) and e not between 17 and 13}
+} {-1040}
+do_test randexpr-2.2218 {
+  db eval {SELECT ~(select (abs(cast(avg(((b)-d*t1.a-c+17+f+e+ -17)) AS integer))) from t1)*t1.c++ -(11-t1.b*~f-e*t1.b)-coalesce((select max(case when not c=13 then 17 else b end) from t1 where (t1.a>17)),c) |  -f-f FROM t1 WHERE NOT (a+coalesce((select max(coalesce((select max(f) from t1 where ((not b in (select t1.b from t1 union select (select  -cast(avg(t1.b) AS integer) from t1) from t1)) or not t1.d= -t1.c and 19<=t1.c)),t1.f)-coalesce((select c from t1 where d<=t1.a), -e)) from t1 where d in (select t1.d from t1 union select t1.d from t1)),t1.d)-a | t1.b>(f) or t1.d between 19 and t1.c and exists(select 1 from t1 where b=13) and not 13 not in (t1.d,(c),d) and e not between 17 and 13)}
+} {}
+do_test randexpr-2.2219 {
+  db eval {SELECT ~(select (abs(cast(avg(((b)-d*t1.a-c+17+f+e+ -17)) AS integer))) from t1)*t1.c++ -(11-t1.b*~f-e*t1.b)-coalesce((select max(case when not c=13 then 17 else b end) from t1 where (t1.a>17)),c) &  -f-f FROM t1 WHERE a+coalesce((select max(coalesce((select max(f) from t1 where ((not b in (select t1.b from t1 union select (select  -cast(avg(t1.b) AS integer) from t1) from t1)) or not t1.d= -t1.c and 19<=t1.c)),t1.f)-coalesce((select c from t1 where d<=t1.a), -e)) from t1 where d in (select t1.d from t1 union select t1.d from t1)),t1.d)-a | t1.b>(f) or t1.d between 19 and t1.c and exists(select 1 from t1 where b=13) and not 13 not in (t1.d,(c),d) and e not between 17 and 13}
+} {-11720688}
+do_test randexpr-2.2220 {
+  db eval {SELECT case when t1.a in (select count(*) from t1 union select cast(avg(t1.a) AS integer)*count(distinct 17) |  -count(*) from t1) then ~coalesce((select max(19+t1.a) from t1 where +d=t1.a),case t1.c-(select count(*) from t1) when coalesce((select (abs((select (cast(avg(13) AS integer)) from t1))/abs(13)) from t1 where f<~13-(t1.a)*19),d) then a else 19 end) | b when t1.d>a then f else b end FROM t1 WHERE 19<=case when (t1.a*11*19-e<>(select abs(min(e))+case  -abs(abs( - -( -(( -max(c)))))-(min(c))) when min(e) then  -(min(f)) else  - -min(t1.a) end from t1)*t1.d) then e+f+coalesce((select max(e-a) from t1 where (t1.b) between 11 and  -t1.c),c) when t1.c<=17 then 17 else t1.b end and 19<>t1.f}
+} {600}
+do_test randexpr-2.2221 {
+  db eval {SELECT case when t1.a in (select count(*) from t1 union select cast(avg(t1.a) AS integer)*count(distinct 17) |  -count(*) from t1) then ~coalesce((select max(19+t1.a) from t1 where +d=t1.a),case t1.c-(select count(*) from t1) when coalesce((select (abs((select (cast(avg(13) AS integer)) from t1))/abs(13)) from t1 where f<~13-(t1.a)*19),d) then a else 19 end) | b when t1.d>a then f else b end FROM t1 WHERE NOT (19<=case when (t1.a*11*19-e<>(select abs(min(e))+case  -abs(abs( - -( -(( -max(c)))))-(min(c))) when min(e) then  -(min(f)) else  - -min(t1.a) end from t1)*t1.d) then e+f+coalesce((select max(e-a) from t1 where (t1.b) between 11 and  -t1.c),c) when t1.c<=17 then 17 else t1.b end and 19<>t1.f)}
+} {}
+do_test randexpr-2.2222 {
+  db eval {SELECT case when t1.a in (select count(*) from t1 union select cast(avg(t1.a) AS integer)*count(distinct 17) &  -count(*) from t1) then ~coalesce((select max(19+t1.a) from t1 where +d=t1.a),case t1.c-(select count(*) from t1) when coalesce((select (abs((select (cast(avg(13) AS integer)) from t1))/abs(13)) from t1 where f<~13-(t1.a)*19),d) then a else 19 end) & b when t1.d>a then f else b end FROM t1 WHERE 19<=case when (t1.a*11*19-e<>(select abs(min(e))+case  -abs(abs( - -( -(( -max(c)))))-(min(c))) when min(e) then  -(min(f)) else  - -min(t1.a) end from t1)*t1.d) then e+f+coalesce((select max(e-a) from t1 where (t1.b) between 11 and  -t1.c),c) when t1.c<=17 then 17 else t1.b end and 19<>t1.f}
+} {200}
+do_test randexpr-2.2223 {
+  db eval {SELECT c-case when t1.e>coalesce((select case  -t1.d-case when d in (select  -t1.f from t1 union select t1.c+t1.c from t1) and (t1.a<=t1.a) then 11*(17) when d between 11 and e or  -c<>t1.f then 19 else 19 end+11 when 19 then b else t1.b end-t1.a from t1 where not e<=f),( -t1.f)) then b when ((d<c)) then 19 else f end FROM t1 WHERE t1.c in (t1.c,~19,13)}
+} {100}
+do_test randexpr-2.2224 {
+  db eval {SELECT c-case when t1.e>coalesce((select case  -t1.d-case when d in (select  -t1.f from t1 union select t1.c+t1.c from t1) and (t1.a<=t1.a) then 11*(17) when d between 11 and e or  -c<>t1.f then 19 else 19 end+11 when 19 then b else t1.b end-t1.a from t1 where not e<=f),( -t1.f)) then b when ((d<c)) then 19 else f end FROM t1 WHERE NOT (t1.c in (t1.c,~19,13))}
+} {}
+do_test randexpr-2.2225 {
+  db eval {SELECT (abs(~(select case max(t1.a) when min(coalesce((select ~coalesce((select max((abs(e)/abs(t1.d))*t1.b*13+t1.b) from t1 where t1.d=t1.f),t1.e)-d from t1 where e between t1.f and 19),(b))) then ~case ~cast(avg(t1.b) AS integer)+~case cast(avg(f) AS integer) when min(19) then  -min(t1.f) else (cast(avg(e) AS integer)) end when cast(avg(f) AS integer) then count(*) else count(distinct c) end-cast(avg(11) AS integer) else cast(avg(t1.f) AS integer) end | min(b) from t1))/abs(t1.b)) FROM t1 WHERE e<a}
+} {}
+do_test randexpr-2.2226 {
+  db eval {SELECT (abs(~(select case max(t1.a) when min(coalesce((select ~coalesce((select max((abs(e)/abs(t1.d))*t1.b*13+t1.b) from t1 where t1.d=t1.f),t1.e)-d from t1 where e between t1.f and 19),(b))) then ~case ~cast(avg(t1.b) AS integer)+~case cast(avg(f) AS integer) when min(19) then  -min(t1.f) else (cast(avg(e) AS integer)) end when cast(avg(f) AS integer) then count(*) else count(distinct c) end-cast(avg(11) AS integer) else cast(avg(t1.f) AS integer) end | min(b) from t1))/abs(t1.b)) FROM t1 WHERE NOT (e<a)}
+} {3}
+do_test randexpr-2.2227 {
+  db eval {SELECT (abs(~(select case max(t1.a) when min(coalesce((select ~coalesce((select max((abs(e)/abs(t1.d))*t1.b*13+t1.b) from t1 where t1.d=t1.f),t1.e)-d from t1 where e between t1.f and 19),(b))) then ~case ~cast(avg(t1.b) AS integer)+~case cast(avg(f) AS integer) when min(19) then  -min(t1.f) else (cast(avg(e) AS integer)) end when cast(avg(f) AS integer) then count(*) else count(distinct c) end-cast(avg(11) AS integer) else cast(avg(t1.f) AS integer) end & min(b) from t1))/abs(t1.b)) FROM t1 WHERE NOT (e<a)}
+} {0}
+do_test randexpr-2.2228 {
+  db eval {SELECT case when not (select  -case (( -(count(*)) | cast(avg(d) AS integer))) | min((e)) when cast(avg(d) AS integer) then count(*) else count(distinct t1.e) end+max((17)) | max(t1.a)+ -count(*) from t1)-e in (t1.a,11-t1.d,t1.b) and coalesce((select max(t1.c) from t1 where case t1.d when t1.f then d else b end<>t1.d),d)>=13 then coalesce((select  -17+e from t1 where t1.a<=19),b) else (19) end FROM t1 WHERE (abs( -t1.f)/abs(t1.a))<=t1.d}
+} {200}
+do_test randexpr-2.2229 {
+  db eval {SELECT case when not (select  -case (( -(count(*)) | cast(avg(d) AS integer))) | min((e)) when cast(avg(d) AS integer) then count(*) else count(distinct t1.e) end+max((17)) | max(t1.a)+ -count(*) from t1)-e in (t1.a,11-t1.d,t1.b) and coalesce((select max(t1.c) from t1 where case t1.d when t1.f then d else b end<>t1.d),d)>=13 then coalesce((select  -17+e from t1 where t1.a<=19),b) else (19) end FROM t1 WHERE NOT ((abs( -t1.f)/abs(t1.a))<=t1.d)}
+} {}
+do_test randexpr-2.2230 {
+  db eval {SELECT case when not (select  -case (( -(count(*)) & cast(avg(d) AS integer))) & min((e)) when cast(avg(d) AS integer) then count(*) else count(distinct t1.e) end+max((17)) & max(t1.a)+ -count(*) from t1)-e in (t1.a,11-t1.d,t1.b) and coalesce((select max(t1.c) from t1 where case t1.d when t1.f then d else b end<>t1.d),d)>=13 then coalesce((select  -17+e from t1 where t1.a<=19),b) else (19) end FROM t1 WHERE (abs( -t1.f)/abs(t1.a))<=t1.d}
+} {200}
+do_test randexpr-2.2231 {
+  db eval {SELECT case when 13 in (select cast(avg(11) AS integer) from t1 union select count(*) from t1) then t1.f-case c-(abs(d+~+t1.d-(abs(13)/abs(t1.e-t1.b-t1.c))*e)/abs(17*19+t1.e)) when 19 then 17 else a end when (t1.a in (select count(distinct 13) from t1 union select max(t1.f) from t1)) and c between ((c)) and (t1.a) then c else 19 end+t1.e FROM t1 WHERE 19<>t1.c}
+} {519}
+do_test randexpr-2.2232 {
+  db eval {SELECT case when 13 in (select cast(avg(11) AS integer) from t1 union select count(*) from t1) then t1.f-case c-(abs(d+~+t1.d-(abs(13)/abs(t1.e-t1.b-t1.c))*e)/abs(17*19+t1.e)) when 19 then 17 else a end when (t1.a in (select count(distinct 13) from t1 union select max(t1.f) from t1)) and c between ((c)) and (t1.a) then c else 19 end+t1.e FROM t1 WHERE NOT (19<>t1.c)}
+} {}
+do_test randexpr-2.2233 {
+  db eval {SELECT coalesce((select max(case when not exists(select 1 from t1 where coalesce((select a from t1 where (t1.c+t1.d<=t1.b and exists(select 1 from t1 where t1.f not in (~case when t1.d>d then t1.a else a end,( -e),t1.b))) and (c<>17)),e) in (select e from t1 union select d from t1)) then case when b not in (a,17,e) or f=t1.e then t1.d else d end else a end*19) from t1 where ((t1.c not between e and t1.e))),13) FROM t1 WHERE c not in (~t1.e,t1.e,a)}
+} {1900}
+do_test randexpr-2.2234 {
+  db eval {SELECT coalesce((select max(case when not exists(select 1 from t1 where coalesce((select a from t1 where (t1.c+t1.d<=t1.b and exists(select 1 from t1 where t1.f not in (~case when t1.d>d then t1.a else a end,( -e),t1.b))) and (c<>17)),e) in (select e from t1 union select d from t1)) then case when b not in (a,17,e) or f=t1.e then t1.d else d end else a end*19) from t1 where ((t1.c not between e and t1.e))),13) FROM t1 WHERE NOT (c not in (~t1.e,t1.e,a))}
+} {}
+do_test randexpr-2.2235 {
+  db eval {SELECT coalesce((select t1.f from t1 where d+(select count(distinct e) from t1)+~+ -~e-a+t1.a-b- -a*coalesce((select c-t1.d*case when ( -11<=e or b>= - -c and t1.c<t1.f) then (t1.d)-11 when a not between t1.b and t1.e then 11 else b end from t1 where t1.e<=11),t1.f)*t1.e<>19),t1.f) FROM t1 WHERE t1.f<>c}
+} {600}
+do_test randexpr-2.2236 {
+  db eval {SELECT coalesce((select t1.f from t1 where d+(select count(distinct e) from t1)+~+ -~e-a+t1.a-b- -a*coalesce((select c-t1.d*case when ( -11<=e or b>= - -c and t1.c<t1.f) then (t1.d)-11 when a not between t1.b and t1.e then 11 else b end from t1 where t1.e<=11),t1.f)*t1.e<>19),t1.f) FROM t1 WHERE NOT (t1.f<>c)}
+} {}
+do_test randexpr-2.2237 {
+  db eval {SELECT 19+case when d between t1.b and 19+t1.d*(select ~min(t1.e | a) from t1)-case when exists(select 1 from t1 where 19<>t1.a and 19 between case +19 when 19 then t1.e else e end and t1.a) then a when t1.a between 13 and f or (t1.f<19) and d>=t1.c and f not between a and t1.b then a else t1.d end then b else t1.a end+ -d FROM t1 WHERE f>=t1.d+(t1.a)}
+} {-281}
+do_test randexpr-2.2238 {
+  db eval {SELECT 19+case when d between t1.b and 19+t1.d*(select ~min(t1.e | a) from t1)-case when exists(select 1 from t1 where 19<>t1.a and 19 between case +19 when 19 then t1.e else e end and t1.a) then a when t1.a between 13 and f or (t1.f<19) and d>=t1.c and f not between a and t1.b then a else t1.d end then b else t1.a end+ -d FROM t1 WHERE NOT (f>=t1.d+(t1.a))}
+} {}
+do_test randexpr-2.2239 {
+  db eval {SELECT 19+case when d between t1.b and 19+t1.d*(select ~min(t1.e & a) from t1)-case when exists(select 1 from t1 where 19<>t1.a and 19 between case +19 when 19 then t1.e else e end and t1.a) then a when t1.a between 13 and f or (t1.f<19) and d>=t1.c and f not between a and t1.b then a else t1.d end then b else t1.a end+ -d FROM t1 WHERE f>=t1.d+(t1.a)}
+} {-281}
+do_test randexpr-2.2240 {
+  db eval {SELECT t1.d+(select case max(t1.f) when count(distinct ~coalesce((select case when 17 in (select t1.b from t1 union select t1.e from t1) then c when (d<= -(abs(t1.a)/abs(t1.d))) then t1.b+ -case when t1.b<b then f when d not in ( - -f,11,t1.c) then d else t1.d end*a | d else e end-t1.e from t1 where a<f or a=f),c)) then cast(avg(17) AS integer) else  -~count(*) end from t1)+e FROM t1 WHERE (e-coalesce((select b+11+( -t1.e) | coalesce((select (abs(c)/abs(coalesce((select max(t1.b) from t1 where t1.d<=f),c)*t1.b)) from t1 where 13 not in (f,19,b)),e)+t1.b+t1.e+13+19-t1.b-t1.c from t1 where d>t1.a or t1.d>=t1.f),t1.a)-e)<=t1.e}
+} {902}
+do_test randexpr-2.2241 {
+  db eval {SELECT t1.d+(select case max(t1.f) when count(distinct ~coalesce((select case when 17 in (select t1.b from t1 union select t1.e from t1) then c when (d<= -(abs(t1.a)/abs(t1.d))) then t1.b+ -case when t1.b<b then f when d not in ( - -f,11,t1.c) then d else t1.d end*a | d else e end-t1.e from t1 where a<f or a=f),c)) then cast(avg(17) AS integer) else  -~count(*) end from t1)+e FROM t1 WHERE NOT ((e-coalesce((select b+11+( -t1.e) | coalesce((select (abs(c)/abs(coalesce((select max(t1.b) from t1 where t1.d<=f),c)*t1.b)) from t1 where 13 not in (f,19,b)),e)+t1.b+t1.e+13+19-t1.b-t1.c from t1 where d>t1.a or t1.d>=t1.f),t1.a)-e)<=t1.e)}
+} {}
+do_test randexpr-2.2242 {
+  db eval {SELECT t1.d+(select case max(t1.f) when count(distinct ~coalesce((select case when 17 in (select t1.b from t1 union select t1.e from t1) then c when (d<= -(abs(t1.a)/abs(t1.d))) then t1.b+ -case when t1.b<b then f when d not in ( - -f,11,t1.c) then d else t1.d end*a & d else e end-t1.e from t1 where a<f or a=f),c)) then cast(avg(17) AS integer) else  -~count(*) end from t1)+e FROM t1 WHERE (e-coalesce((select b+11+( -t1.e) | coalesce((select (abs(c)/abs(coalesce((select max(t1.b) from t1 where t1.d<=f),c)*t1.b)) from t1 where 13 not in (f,19,b)),e)+t1.b+t1.e+13+19-t1.b-t1.c from t1 where d>t1.a or t1.d>=t1.f),t1.a)-e)<=t1.e}
+} {902}
+do_test randexpr-2.2243 {
+  db eval {SELECT (select count(distinct (select case ~abs(~+abs(case (max(17)) when max(coalesce((select ~b from t1 where (not exists(select 1 from t1 where  -17<>f or t1.d>=b and 19 between 19 and t1.b))),(abs(case when 19<>a then t1.c else t1.b end)/abs(19)))) then ~+cast(avg(19) AS integer) else min(t1.a) end) | case min(13) when max(11) then count(distinct  -d) else count(distinct t1.d) end)*max(t1.d) when count(*) then  -min(e) else (count(*)) end+count(*) from t1)) from t1) FROM t1 WHERE (d in (select abs(count(*) | case max((case when b<=13 then t1.b*e when case when t1.c between t1.d and a then t1.a when (f< -19) then t1.c else d end between t1.d and b then t1.e else t1.b end))-max((t1.c)) when max(t1.f) then  -abs(+cast(avg(19) AS integer)) else abs(max(t1.c)) end++max(17))- -cast(avg(f) AS integer) from t1 union select min(11) from t1))}
+} {}
+do_test randexpr-2.2244 {
+  db eval {SELECT (select count(distinct (select case ~abs(~+abs(case (max(17)) when max(coalesce((select ~b from t1 where (not exists(select 1 from t1 where  -17<>f or t1.d>=b and 19 between 19 and t1.b))),(abs(case when 19<>a then t1.c else t1.b end)/abs(19)))) then ~+cast(avg(19) AS integer) else min(t1.a) end) | case min(13) when max(11) then count(distinct  -d) else count(distinct t1.d) end)*max(t1.d) when count(*) then  -min(e) else (count(*)) end+count(*) from t1)) from t1) FROM t1 WHERE NOT ((d in (select abs(count(*) | case max((case when b<=13 then t1.b*e when case when t1.c between t1.d and a then t1.a when (f< -19) then t1.c else d end between t1.d and b then t1.e else t1.b end))-max((t1.c)) when max(t1.f) then  -abs(+cast(avg(19) AS integer)) else abs(max(t1.c)) end++max(17))- -cast(avg(f) AS integer) from t1 union select min(11) from t1)))}
+} {1}
+do_test randexpr-2.2245 {
+  db eval {SELECT (select count(distinct (select case ~abs(~+abs(case (max(17)) when max(coalesce((select ~b from t1 where (not exists(select 1 from t1 where  -17<>f or t1.d>=b and 19 between 19 and t1.b))),(abs(case when 19<>a then t1.c else t1.b end)/abs(19)))) then ~+cast(avg(19) AS integer) else min(t1.a) end) & case min(13) when max(11) then count(distinct  -d) else count(distinct t1.d) end)*max(t1.d) when count(*) then  -min(e) else (count(*)) end+count(*) from t1)) from t1) FROM t1 WHERE NOT ((d in (select abs(count(*) | case max((case when b<=13 then t1.b*e when case when t1.c between t1.d and a then t1.a when (f< -19) then t1.c else d end between t1.d and b then t1.e else t1.b end))-max((t1.c)) when max(t1.f) then  -abs(+cast(avg(19) AS integer)) else abs(max(t1.c)) end++max(17))- -cast(avg(f) AS integer) from t1 union select min(11) from t1)))}
+} {1}
+do_test randexpr-2.2246 {
+  db eval {SELECT case d*coalesce((select e from t1 where t1.f in (case when not exists(select 1 from t1 where 19>=(+f-13)) then case when not not exists(select 1 from t1 where 17>=t1.d-13) then f else d end else t1.c end,c,+(abs(e)/abs(19*d | case 19 when b then 17 else b end-b))) or e between 13 and a),19) when b then c else t1.b end FROM t1 WHERE t1.b<=coalesce((select coalesce((select t1.a from t1 where not t1.b*(select max(t1.d) from t1)<a),e)-b-~11+t1.d from t1 where c not in (((abs((select  -case  -case abs(+count(*)-(count(distinct a))) when min(a) then min(d) else cast(avg(t1.a) AS integer) end when min(19) then cast(avg(a) AS integer) else min(d) end from t1) | d)/abs(d)))+19,17,11-c)),t1.c)}
+} {200}
+do_test randexpr-2.2247 {
+  db eval {SELECT case d*coalesce((select e from t1 where t1.f in (case when not exists(select 1 from t1 where 19>=(+f-13)) then case when not not exists(select 1 from t1 where 17>=t1.d-13) then f else d end else t1.c end,c,+(abs(e)/abs(19*d | case 19 when b then 17 else b end-b))) or e between 13 and a),19) when b then c else t1.b end FROM t1 WHERE NOT (t1.b<=coalesce((select coalesce((select t1.a from t1 where not t1.b*(select max(t1.d) from t1)<a),e)-b-~11+t1.d from t1 where c not in (((abs((select  -case  -case abs(+count(*)-(count(distinct a))) when min(a) then min(d) else cast(avg(t1.a) AS integer) end when min(19) then cast(avg(a) AS integer) else min(d) end from t1) | d)/abs(d)))+19,17,11-c)),t1.c))}
+} {}
+do_test randexpr-2.2248 {
+  db eval {SELECT 13-case when f in (select t1.f from t1 union select ~17 from t1) then ~t1.c*t1.f-(abs(17-e*c)/abs(b))*t1.b-11-a+19-coalesce((select (abs(case  -(abs(coalesce((select t1.f from t1 where t1.e in (t1.a,b,f)),t1.a))/abs(c)) when c then t1.c else c end)/abs(17)) from t1 where e<t1.c),f) else t1.c end- -d FROM t1 WHERE 17 in (select t1.f from t1 union select t1.d from t1) and (select max((case when t1.d*19 not between  -t1.e-case when e=t1.f then (select abs(max( -17)-count(*)-min(13)) from t1) else b- -(c) end*d* -t1.c and 11 then 19 else e end-t1.a-t1.f)+(a)) from t1) in (t1.b,b,t1.f) and 11<=e}
+} {}
+do_test randexpr-2.2249 {
+  db eval {SELECT 13-case when f in (select t1.f from t1 union select ~17 from t1) then ~t1.c*t1.f-(abs(17-e*c)/abs(b))*t1.b-11-a+19-coalesce((select (abs(case  -(abs(coalesce((select t1.f from t1 where t1.e in (t1.a,b,f)),t1.a))/abs(c)) when c then t1.c else c end)/abs(17)) from t1 where e<t1.c),f) else t1.c end- -d FROM t1 WHERE NOT (17 in (select t1.f from t1 union select t1.d from t1) and (select max((case when t1.d*19 not between  -t1.e-case when e=t1.f then (select abs(max( -17)-count(*)-min(13)) from t1) else b- -(c) end*d* -t1.c and 11 then 19 else e end-t1.a-t1.f)+(a)) from t1) in (t1.b,b,t1.f) and 11<=e)}
+} {331505}
+do_test randexpr-2.2250 {
+  db eval {SELECT case when case when case when case when t1.b<> -c then (b)* -19 else t1.d end<=11 or 17 not between t1.f and 13 or a not in (t1.c,t1.b,11) then c else c end<>t1.a and (f) in (select cast(avg(11) AS integer) from t1 union select case max(b) when (min(t1.c)) then count(distinct f) else max(19) end from t1) then 13 else d end | f-t1.d<=t1.f then f else 19 end FROM t1 WHERE ((f not between t1.f and d))}
+} {600}
+do_test randexpr-2.2251 {
+  db eval {SELECT case when case when case when case when t1.b<> -c then (b)* -19 else t1.d end<=11 or 17 not between t1.f and 13 or a not in (t1.c,t1.b,11) then c else c end<>t1.a and (f) in (select cast(avg(11) AS integer) from t1 union select case max(b) when (min(t1.c)) then count(distinct f) else max(19) end from t1) then 13 else d end | f-t1.d<=t1.f then f else 19 end FROM t1 WHERE NOT (((f not between t1.f and d)))}
+} {}
+do_test randexpr-2.2252 {
+  db eval {SELECT case when case when case when case when t1.b<> -c then (b)* -19 else t1.d end<=11 or 17 not between t1.f and 13 or a not in (t1.c,t1.b,11) then c else c end<>t1.a and (f) in (select cast(avg(11) AS integer) from t1 union select case max(b) when (min(t1.c)) then count(distinct f) else max(19) end from t1) then 13 else d end & f-t1.d<=t1.f then f else 19 end FROM t1 WHERE ((f not between t1.f and d))}
+} {600}
+do_test randexpr-2.2253 {
+  db eval {SELECT d-b-(abs(a)/abs(coalesce((select b from t1 where coalesce((select t1.f from t1 where 13>=f-b),t1.c)*case when coalesce((select case (d*t1.e+b) when t1.a-13 then  - -t1.d else t1.a end+13 from t1 where e>=t1.f),11) | b<t1.e then d else c end between c and d),11)-19))+11 FROM t1 WHERE d>=case when coalesce((select max(case when f<>~b | coalesce((select max(11*c) from t1 where 17=t1.f),t1.d)*d then b when a in (c,(t1.d),(f)) then a else 19 end-t1.f) from t1 where not 13 in (select cast(avg(t1.b) AS integer)-cast(avg( -t1.a) AS integer) from t1 union select count(*) from t1)),17) not in ((t1.f),c, -19) and e between 11 and (19) then 19 else t1.d end}
+} {199}
+do_test randexpr-2.2254 {
+  db eval {SELECT d-b-(abs(a)/abs(coalesce((select b from t1 where coalesce((select t1.f from t1 where 13>=f-b),t1.c)*case when coalesce((select case (d*t1.e+b) when t1.a-13 then  - -t1.d else t1.a end+13 from t1 where e>=t1.f),11) | b<t1.e then d else c end between c and d),11)-19))+11 FROM t1 WHERE NOT (d>=case when coalesce((select max(case when f<>~b | coalesce((select max(11*c) from t1 where 17=t1.f),t1.d)*d then b when a in (c,(t1.d),(f)) then a else 19 end-t1.f) from t1 where not 13 in (select cast(avg(t1.b) AS integer)-cast(avg( -t1.a) AS integer) from t1 union select count(*) from t1)),17) not in ((t1.f),c, -19) and e between 11 and (19) then 19 else t1.d end)}
+} {}
+do_test randexpr-2.2255 {
+  db eval {SELECT d-b-(abs(a)/abs(coalesce((select b from t1 where coalesce((select t1.f from t1 where 13>=f-b),t1.c)*case when coalesce((select case (d*t1.e+b) when t1.a-13 then  - -t1.d else t1.a end+13 from t1 where e>=t1.f),11) & b<t1.e then d else c end between c and d),11)-19))+11 FROM t1 WHERE d>=case when coalesce((select max(case when f<>~b | coalesce((select max(11*c) from t1 where 17=t1.f),t1.d)*d then b when a in (c,(t1.d),(f)) then a else 19 end-t1.f) from t1 where not 13 in (select cast(avg(t1.b) AS integer)-cast(avg( -t1.a) AS integer) from t1 union select count(*) from t1)),17) not in ((t1.f),c, -19) and e between 11 and (19) then 19 else t1.d end}
+} {199}
+do_test randexpr-2.2256 {
+  db eval {SELECT coalesce((select max(coalesce((select 13 from t1 where not t1.b<>e*b),t1.c*case when d>=case case 13 when coalesce((select ~~t1.f*(abs(t1.f)/abs(t1.e))-e |  -t1.b from t1 where a in (11,13,t1.e)),d)*t1.e then  -e else t1.b end when t1.e then 11 else t1.e end then  -f else c end) | t1.a) from t1 where e>t1.d), -(t1.f)) FROM t1 WHERE not  -13 in (select (+(case case min(a+t1.a) when abs(count(*)-count(distinct t1.d-+(f)-case 19 when b then t1.b else a end)) then case count(*)*max(c) when ~ -count(*)*cast(avg(t1.e) AS integer)*count(distinct  -a) then count(*) else cast(avg(19) AS integer) end else cast(avg(b) AS integer) end when min(f) then max( -a) else (count(*)) end)*count(distinct t1.f)-count(*)) from t1 union select count(distinct f) from t1)}
+} {90100}
+do_test randexpr-2.2257 {
+  db eval {SELECT coalesce((select max(coalesce((select 13 from t1 where not t1.b<>e*b),t1.c*case when d>=case case 13 when coalesce((select ~~t1.f*(abs(t1.f)/abs(t1.e))-e |  -t1.b from t1 where a in (11,13,t1.e)),d)*t1.e then  -e else t1.b end when t1.e then 11 else t1.e end then  -f else c end) | t1.a) from t1 where e>t1.d), -(t1.f)) FROM t1 WHERE NOT (not  -13 in (select (+(case case min(a+t1.a) when abs(count(*)-count(distinct t1.d-+(f)-case 19 when b then t1.b else a end)) then case count(*)*max(c) when ~ -count(*)*cast(avg(t1.e) AS integer)*count(distinct  -a) then count(*) else cast(avg(19) AS integer) end else cast(avg(b) AS integer) end when min(f) then max( -a) else (count(*)) end)*count(distinct t1.f)-count(*)) from t1 union select count(distinct f) from t1))}
+} {}
+do_test randexpr-2.2258 {
+  db eval {SELECT coalesce((select max(coalesce((select 13 from t1 where not t1.b<>e*b),t1.c*case when d>=case case 13 when coalesce((select ~~t1.f*(abs(t1.f)/abs(t1.e))-e &  -t1.b from t1 where a in (11,13,t1.e)),d)*t1.e then  -e else t1.b end when t1.e then 11 else t1.e end then  -f else c end) & t1.a) from t1 where e>t1.d), -(t1.f)) FROM t1 WHERE not  -13 in (select (+(case case min(a+t1.a) when abs(count(*)-count(distinct t1.d-+(f)-case 19 when b then t1.b else a end)) then case count(*)*max(c) when ~ -count(*)*cast(avg(t1.e) AS integer)*count(distinct  -a) then count(*) else cast(avg(19) AS integer) end else cast(avg(b) AS integer) end when min(f) then max( -a) else (count(*)) end)*count(distinct t1.f)-count(*)) from t1 union select count(distinct f) from t1)}
+} {0}
+do_test randexpr-2.2259 {
+  db eval {SELECT coalesce((select max(t1.e*~t1.b- -t1.b-t1.b-coalesce((select t1.a from t1 where exists(select 1 from t1 where ~d+case case when a between b and f then 13 else  -17 end-13 when  -19 then t1.f else d end+t1.b<>e or not t1.e between 19 and t1.a or 11 in (19,c, -19))),a)*e) from t1 where t1.f<19),t1.e)-13 FROM t1 WHERE t1.b not between e and 13}
+} {487}
+do_test randexpr-2.2260 {
+  db eval {SELECT coalesce((select max(t1.e*~t1.b- -t1.b-t1.b-coalesce((select t1.a from t1 where exists(select 1 from t1 where ~d+case case when a between b and f then 13 else  -17 end-13 when  -19 then t1.f else d end+t1.b<>e or not t1.e between 19 and t1.a or 11 in (19,c, -19))),a)*e) from t1 where t1.f<19),t1.e)-13 FROM t1 WHERE NOT (t1.b not between e and 13)}
+} {}
+do_test randexpr-2.2261 {
+  db eval {SELECT (select (count(distinct case t1.d+case when (coalesce((select max((select + -cast(avg(b) AS integer)-min(19) | (cast(avg(19) AS integer)) from t1)) from t1 where ~c+t1.c<t1.d),(c)) in (select t1.c from t1 union select t1.f from t1)) then (select abs( -min(t1.e)) | min(t1.c) from t1) when 11 not between  -d and a or a<>t1.a and f between t1.e and d and f<=19 then t1.f else t1.b end-c*a when t1.f then e else t1.b end)) from t1) FROM t1 WHERE not b*c+d<>b}
+} {}
+do_test randexpr-2.2262 {
+  db eval {SELECT (select (count(distinct case t1.d+case when (coalesce((select max((select + -cast(avg(b) AS integer)-min(19) | (cast(avg(19) AS integer)) from t1)) from t1 where ~c+t1.c<t1.d),(c)) in (select t1.c from t1 union select t1.f from t1)) then (select abs( -min(t1.e)) | min(t1.c) from t1) when 11 not between  -d and a or a<>t1.a and f between t1.e and d and f<=19 then t1.f else t1.b end-c*a when t1.f then e else t1.b end)) from t1) FROM t1 WHERE NOT (not b*c+d<>b)}
+} {1}
+do_test randexpr-2.2263 {
+  db eval {SELECT (select (count(distinct case t1.d+case when (coalesce((select max((select + -cast(avg(b) AS integer)-min(19) & (cast(avg(19) AS integer)) from t1)) from t1 where ~c+t1.c<t1.d),(c)) in (select t1.c from t1 union select t1.f from t1)) then (select abs( -min(t1.e)) & min(t1.c) from t1) when 11 not between  -d and a or a<>t1.a and f between t1.e and d and f<=19 then t1.f else t1.b end-c*a when t1.f then e else t1.b end)) from t1) FROM t1 WHERE NOT (not b*c+d<>b)}
+} {1}
+do_test randexpr-2.2264 {
+  db eval {SELECT t1.b+case case c when f-((abs(t1.f)/abs(coalesce((select max(f+t1.d | t1.c*e+f+~case when c not between b and t1.a or 11<19 then c-d else t1.f end+e-t1.b*11+t1.e) from t1 where 17 not between e and 19),19)))) then d else a end when (t1.c) then t1.f else f end FROM t1 WHERE (b)-t1.c*19-t1.b>17*b-13}
+} {}
+do_test randexpr-2.2265 {
+  db eval {SELECT t1.b+case case c when f-((abs(t1.f)/abs(coalesce((select max(f+t1.d | t1.c*e+f+~case when c not between b and t1.a or 11<19 then c-d else t1.f end+e-t1.b*11+t1.e) from t1 where 17 not between e and 19),19)))) then d else a end when (t1.c) then t1.f else f end FROM t1 WHERE NOT ((b)-t1.c*19-t1.b>17*b-13)}
+} {800}
+do_test randexpr-2.2266 {
+  db eval {SELECT t1.b+case case c when f-((abs(t1.f)/abs(coalesce((select max(f+t1.d & t1.c*e+f+~case when c not between b and t1.a or 11<19 then c-d else t1.f end+e-t1.b*11+t1.e) from t1 where 17 not between e and 19),19)))) then d else a end when (t1.c) then t1.f else f end FROM t1 WHERE NOT ((b)-t1.c*19-t1.b>17*b-13)}
+} {800}
+do_test randexpr-2.2267 {
+  db eval {SELECT coalesce((select coalesce((select ((abs(19)/abs(17))) from t1 where +13 | d>d),13-(select abs(abs(~count(*)))+~count(*) from t1)+(t1.c*t1.e*(abs(19+(13))/abs(a)))-coalesce((select 17 from t1 where c<>e and b not in ((d),t1.b,b)),t1.c)+t1.d)-13 from t1 where t1.f<b),11)+ -t1.c FROM t1 WHERE (t1.e in (select  -(+min(f*t1.c)- -max(t1.a))-+min(b) | count(distinct 17) from t1 union select abs(case count(*) when abs(min(d*t1.c-t1.b*~b+c) | (max(case when not 19<(e) then 19 when  -17>19 then 17 else t1.c end)-count(*))) then max(11) else +max(b) end) from t1))}
+} {}
+do_test randexpr-2.2268 {
+  db eval {SELECT coalesce((select coalesce((select ((abs(19)/abs(17))) from t1 where +13 | d>d),13-(select abs(abs(~count(*)))+~count(*) from t1)+(t1.c*t1.e*(abs(19+(13))/abs(a)))-coalesce((select 17 from t1 where c<>e and b not in ((d),t1.b,b)),t1.c)+t1.d)-13 from t1 where t1.f<b),11)+ -t1.c FROM t1 WHERE NOT ((t1.e in (select  -(+min(f*t1.c)- -max(t1.a))-+min(b) | count(distinct 17) from t1 union select abs(case count(*) when abs(min(d*t1.c-t1.b*~b+c) | (max(case when not 19<(e) then 19 when  -17>19 then 17 else t1.c end)-count(*))) then max(11) else +max(b) end) from t1)))}
+} {-289}
+do_test randexpr-2.2269 {
+  db eval {SELECT coalesce((select coalesce((select ((abs(19)/abs(17))) from t1 where +13 & d>d),13-(select abs(abs(~count(*)))+~count(*) from t1)+(t1.c*t1.e*(abs(19+(13))/abs(a)))-coalesce((select 17 from t1 where c<>e and b not in ((d),t1.b,b)),t1.c)+t1.d)-13 from t1 where t1.f<b),11)+ -t1.c FROM t1 WHERE NOT ((t1.e in (select  -(+min(f*t1.c)- -max(t1.a))-+min(b) | count(distinct 17) from t1 union select abs(case count(*) when abs(min(d*t1.c-t1.b*~b+c) | (max(case when not 19<(e) then 19 when  -17>19 then 17 else t1.c end)-count(*))) then max(11) else +max(b) end) from t1)))}
+} {-289}
+do_test randexpr-2.2270 {
+  db eval {SELECT coalesce((select case d when e then t1.f else d++(abs((select count(*) from t1)-case when t1.f*case when t1.b-c in (select  -cast(avg(e) AS integer) from t1 union select max(t1.a) from t1) or b between t1.a and  -17 and  -t1.f not between 17 and a then t1.e when 17<>11 then (abs(19)/abs(f)) else 17 end-17 not in (13,11,c) then t1.f else t1.c end)/abs(c))*t1.e end from t1 where f between t1.c and 17),t1.f) FROM t1 WHERE t1.b<>19}
+} {600}
+do_test randexpr-2.2271 {
+  db eval {SELECT coalesce((select case d when e then t1.f else d++(abs((select count(*) from t1)-case when t1.f*case when t1.b-c in (select  -cast(avg(e) AS integer) from t1 union select max(t1.a) from t1) or b between t1.a and  -17 and  -t1.f not between 17 and a then t1.e when 17<>11 then (abs(19)/abs(f)) else 17 end-17 not in (13,11,c) then t1.f else t1.c end)/abs(c))*t1.e end from t1 where f between t1.c and 17),t1.f) FROM t1 WHERE NOT (t1.b<>19)}
+} {}
+do_test randexpr-2.2272 {
+  db eval {SELECT t1.f-case when ((t1.a in (select case case +min(case when coalesce((select max(a) from t1 where t1.e not between f and t1.b),f)<>(t1.d) then  - -t1.f else 19 end)-case count(*)+(count(distinct t1.d)) when  -min(e) then max(t1.f) else min(19) end when cast(avg(13) AS integer) then cast(avg( -t1.a) AS integer) else (min(t1.f)) end when (count(distinct t1.e)) then  -cast(avg(a) AS integer) else cast(avg(19) AS integer) end | count(distinct 13)+ -count(*) from t1 union select  -max(t1.b) from t1))) then a when d between a and 11 or t1.e<>c then +t1.a-(t1.e) else t1.e end FROM t1 WHERE t1.e between d | t1.a*13 and 11+13*17+b*c++13-~b}
+} {}
+do_test randexpr-2.2273 {
+  db eval {SELECT t1.f-case when ((t1.a in (select case case +min(case when coalesce((select max(a) from t1 where t1.e not between f and t1.b),f)<>(t1.d) then  - -t1.f else 19 end)-case count(*)+(count(distinct t1.d)) when  -min(e) then max(t1.f) else min(19) end when cast(avg(13) AS integer) then cast(avg( -t1.a) AS integer) else (min(t1.f)) end when (count(distinct t1.e)) then  -cast(avg(a) AS integer) else cast(avg(19) AS integer) end | count(distinct 13)+ -count(*) from t1 union select  -max(t1.b) from t1))) then a when d between a and 11 or t1.e<>c then +t1.a-(t1.e) else t1.e end FROM t1 WHERE NOT (t1.e between d | t1.a*13 and 11+13*17+b*c++13-~b)}
+} {1000}
+do_test randexpr-2.2274 {
+  db eval {SELECT t1.f-case when ((t1.a in (select case case +min(case when coalesce((select max(a) from t1 where t1.e not between f and t1.b),f)<>(t1.d) then  - -t1.f else 19 end)-case count(*)+(count(distinct t1.d)) when  -min(e) then max(t1.f) else min(19) end when cast(avg(13) AS integer) then cast(avg( -t1.a) AS integer) else (min(t1.f)) end when (count(distinct t1.e)) then  -cast(avg(a) AS integer) else cast(avg(19) AS integer) end & count(distinct 13)+ -count(*) from t1 union select  -max(t1.b) from t1))) then a when d between a and 11 or t1.e<>c then +t1.a-(t1.e) else t1.e end FROM t1 WHERE NOT (t1.e between d | t1.a*13 and 11+13*17+b*c++13-~b)}
+} {1000}
+do_test randexpr-2.2275 {
+  db eval {SELECT coalesce((select ~(abs(e)/abs(case when exists(select 1 from t1 where 19=+c or exists(select 1 from t1 where not exists(select 1 from t1 where 11>=d or b not between b and 19)) or t1.a not in (t1.a,(11),13)) then e-13+a-c else a end))*t1.f-(19) | 19 from t1 where t1.d in (select  -(cast(avg(19) AS integer)) from t1 union select count(distinct (t1.e)) from t1) and (f in (a,c,(t1.a))) and a between 11 and 11 and t1.d>=t1.f and 11 not in ((t1.f),e,(f)) and 13 not in (t1.c,t1.d,t1.c)),t1.d) FROM t1 WHERE not exists(select 1 from t1 where not coalesce((select max(b) from t1 where coalesce((select t1.f from t1 where t1.f not between t1.e and coalesce((select 13*+ -t1.a | e+case when t1.a not in (case t1.f when d then 19 else 11 end,f*e+19,t1.e+(d)) then 13 else t1.d end+t1.c-17 from t1 where t1.c>=t1.d),t1.c)),t1.d)>t1.c),11) not between b and t1.f)}
+} {}
+do_test randexpr-2.2276 {
+  db eval {SELECT coalesce((select ~(abs(e)/abs(case when exists(select 1 from t1 where 19=+c or exists(select 1 from t1 where not exists(select 1 from t1 where 11>=d or b not between b and 19)) or t1.a not in (t1.a,(11),13)) then e-13+a-c else a end))*t1.f-(19) | 19 from t1 where t1.d in (select  -(cast(avg(19) AS integer)) from t1 union select count(distinct (t1.e)) from t1) and (f in (a,c,(t1.a))) and a between 11 and 11 and t1.d>=t1.f and 11 not in ((t1.f),e,(f)) and 13 not in (t1.c,t1.d,t1.c)),t1.d) FROM t1 WHERE NOT (not exists(select 1 from t1 where not coalesce((select max(b) from t1 where coalesce((select t1.f from t1 where t1.f not between t1.e and coalesce((select 13*+ -t1.a | e+case when t1.a not in (case t1.f when d then 19 else 11 end,f*e+19,t1.e+(d)) then 13 else t1.d end+t1.c-17 from t1 where t1.c>=t1.d),t1.c)),t1.d)>t1.c),11) not between b and t1.f))}
+} {400}
+do_test randexpr-2.2277 {
+  db eval {SELECT coalesce((select ~(abs(e)/abs(case when exists(select 1 from t1 where 19=+c or exists(select 1 from t1 where not exists(select 1 from t1 where 11>=d or b not between b and 19)) or t1.a not in (t1.a,(11),13)) then e-13+a-c else a end))*t1.f-(19) & 19 from t1 where t1.d in (select  -(cast(avg(19) AS integer)) from t1 union select count(distinct (t1.e)) from t1) and (f in (a,c,(t1.a))) and a between 11 and 11 and t1.d>=t1.f and 11 not in ((t1.f),e,(f)) and 13 not in (t1.c,t1.d,t1.c)),t1.d) FROM t1 WHERE NOT (not exists(select 1 from t1 where not coalesce((select max(b) from t1 where coalesce((select t1.f from t1 where t1.f not between t1.e and coalesce((select 13*+ -t1.a | e+case when t1.a not in (case t1.f when d then 19 else 11 end,f*e+19,t1.e+(d)) then 13 else t1.d end+t1.c-17 from t1 where t1.c>=t1.d),t1.c)),t1.d)>t1.c),11) not between b and t1.f))}
+} {400}
+do_test randexpr-2.2278 {
+  db eval {SELECT case when (select +case  -+ -case min(t1.f) when cast(avg(t1.a) AS integer) then abs(~case (min(t1.a)) when (count(*)) then (min(e)) else count(*) end) else ( -cast(avg(b) AS integer)) end*count(*) | count(distinct 11) when  -cast(avg(13) AS integer) then  -min(13) else max(b) end+max(a) from t1) in ((abs(coalesce((select max(11*a) from t1 where t1.b>11-(select  -cast(avg(t1.d) AS integer) from t1)),case when exists(select 1 from t1 where t1.f<13) then a else e end))/abs(c)) | t1.f,f,f) then t1.e else a end FROM t1 WHERE (select case min(case when not 17<11 then (abs(+(d)*t1.c+e-f)/abs(13)) when b between a and 11 then e else b end) when abs(min(t1.b) | (+count(*))) | ~case ( -count(*))-cast(avg(a) AS integer) when count(distinct t1.a) then  -count(distinct f) else count(distinct 11) end then max( -t1.d) else  -max(f) end from t1)-~c*t1.a not in (t1.e,t1.c,t1.a)}
+} {100}
+do_test randexpr-2.2279 {
+  db eval {SELECT case when (select +case  -+ -case min(t1.f) when cast(avg(t1.a) AS integer) then abs(~case (min(t1.a)) when (count(*)) then (min(e)) else count(*) end) else ( -cast(avg(b) AS integer)) end*count(*) | count(distinct 11) when  -cast(avg(13) AS integer) then  -min(13) else max(b) end+max(a) from t1) in ((abs(coalesce((select max(11*a) from t1 where t1.b>11-(select  -cast(avg(t1.d) AS integer) from t1)),case when exists(select 1 from t1 where t1.f<13) then a else e end))/abs(c)) | t1.f,f,f) then t1.e else a end FROM t1 WHERE NOT ((select case min(case when not 17<11 then (abs(+(d)*t1.c+e-f)/abs(13)) when b between a and 11 then e else b end) when abs(min(t1.b) | (+count(*))) | ~case ( -count(*))-cast(avg(a) AS integer) when count(distinct t1.a) then  -count(distinct f) else count(distinct 11) end then max( -t1.d) else  -max(f) end from t1)-~c*t1.a not in (t1.e,t1.c,t1.a))}
+} {}
+do_test randexpr-2.2280 {
+  db eval {SELECT case when (select +case  -+ -case min(t1.f) when cast(avg(t1.a) AS integer) then abs(~case (min(t1.a)) when (count(*)) then (min(e)) else count(*) end) else ( -cast(avg(b) AS integer)) end*count(*) & count(distinct 11) when  -cast(avg(13) AS integer) then  -min(13) else max(b) end+max(a) from t1) in ((abs(coalesce((select max(11*a) from t1 where t1.b>11-(select  -cast(avg(t1.d) AS integer) from t1)),case when exists(select 1 from t1 where t1.f<13) then a else e end))/abs(c)) & t1.f,f,f) then t1.e else a end FROM t1 WHERE (select case min(case when not 17<11 then (abs(+(d)*t1.c+e-f)/abs(13)) when b between a and 11 then e else b end) when abs(min(t1.b) | (+count(*))) | ~case ( -count(*))-cast(avg(a) AS integer) when count(distinct t1.a) then  -count(distinct f) else count(distinct 11) end then max( -t1.d) else  -max(f) end from t1)-~c*t1.a not in (t1.e,t1.c,t1.a)}
+} {100}
+do_test randexpr-2.2281 {
+  db eval {SELECT case when ~t1.b | 13>=~coalesce((select t1.e from t1 where 11 in (select  -case +max(case when (t1.f) in (t1.b,t1.a,t1.f) then f else e end) when max(f)*cast(avg(t1.d) AS integer) then cast(avg(c) AS integer) else  -( - -max(t1.f)) end from t1 union select count(*) from t1)),b | ( -t1.e))*t1.c*t1.a*t1.d-f then a when 19 not between  -t1.e and t1.e or f not between  -a and 19 then d else 11 end FROM t1 WHERE not (d in (select t1.c from t1 union select 11 from t1))}
+} {400}
+do_test randexpr-2.2282 {
+  db eval {SELECT case when ~t1.b | 13>=~coalesce((select t1.e from t1 where 11 in (select  -case +max(case when (t1.f) in (t1.b,t1.a,t1.f) then f else e end) when max(f)*cast(avg(t1.d) AS integer) then cast(avg(c) AS integer) else  -( - -max(t1.f)) end from t1 union select count(*) from t1)),b | ( -t1.e))*t1.c*t1.a*t1.d-f then a when 19 not between  -t1.e and t1.e or f not between  -a and 19 then d else 11 end FROM t1 WHERE NOT (not (d in (select t1.c from t1 union select 11 from t1)))}
+} {}
+do_test randexpr-2.2283 {
+  db eval {SELECT case when ~t1.b & 13>=~coalesce((select t1.e from t1 where 11 in (select  -case +max(case when (t1.f) in (t1.b,t1.a,t1.f) then f else e end) when max(f)*cast(avg(t1.d) AS integer) then cast(avg(c) AS integer) else  -( - -max(t1.f)) end from t1 union select count(*) from t1)),b & ( -t1.e))*t1.c*t1.a*t1.d-f then a when 19 not between  -t1.e and t1.e or f not between  -a and 19 then d else 11 end FROM t1 WHERE not (d in (select t1.c from t1 union select 11 from t1))}
+} {100}
+do_test randexpr-2.2284 {
+  db eval {SELECT coalesce((select c from t1 where 19 in (select case count(*) when count(distinct c)*+cast(avg(13) AS integer) then max(t1.d) else max(case case when exists(select 1 from t1 where 13 not in (d,e,(19)) and 13 between t1.d and t1.f) then t1.a when b in (t1.a,a,17) then case when t1.a not between 13 and c then (t1.b) else t1.b end else 19 end when 13 then a else 19 end) end from t1 union select (abs(abs(~cast(avg(t1.d) AS integer))) | cast(avg(t1.a) AS integer)) from t1)),t1.e-11)*(t1.a) FROM t1 WHERE not exists(select 1 from t1 where t1.e in (coalesce((select max(13) from t1 where 19 in (select f from t1 union select a from t1) or (not exists(select 1 from t1 where t1.a<=(19)*c*c | 13))),+e-(f)*case when t1.c not in (coalesce((select max(t1.a) from t1 where not c<(19)),19),e,(19)) then d else f end)+a,19,17)) or (d<t1.a)}
+} {30000}
+do_test randexpr-2.2285 {
+  db eval {SELECT coalesce((select c from t1 where 19 in (select case count(*) when count(distinct c)*+cast(avg(13) AS integer) then max(t1.d) else max(case case when exists(select 1 from t1 where 13 not in (d,e,(19)) and 13 between t1.d and t1.f) then t1.a when b in (t1.a,a,17) then case when t1.a not between 13 and c then (t1.b) else t1.b end else 19 end when 13 then a else 19 end) end from t1 union select (abs(abs(~cast(avg(t1.d) AS integer))) | cast(avg(t1.a) AS integer)) from t1)),t1.e-11)*(t1.a) FROM t1 WHERE NOT (not exists(select 1 from t1 where t1.e in (coalesce((select max(13) from t1 where 19 in (select f from t1 union select a from t1) or (not exists(select 1 from t1 where t1.a<=(19)*c*c | 13))),+e-(f)*case when t1.c not in (coalesce((select max(t1.a) from t1 where not c<(19)),19),e,(19)) then d else f end)+a,19,17)) or (d<t1.a))}
+} {}
+do_test randexpr-2.2286 {
+  db eval {SELECT coalesce((select c from t1 where 19 in (select case count(*) when count(distinct c)*+cast(avg(13) AS integer) then max(t1.d) else max(case case when exists(select 1 from t1 where 13 not in (d,e,(19)) and 13 between t1.d and t1.f) then t1.a when b in (t1.a,a,17) then case when t1.a not between 13 and c then (t1.b) else t1.b end else 19 end when 13 then a else 19 end) end from t1 union select (abs(abs(~cast(avg(t1.d) AS integer))) & cast(avg(t1.a) AS integer)) from t1)),t1.e-11)*(t1.a) FROM t1 WHERE not exists(select 1 from t1 where t1.e in (coalesce((select max(13) from t1 where 19 in (select f from t1 union select a from t1) or (not exists(select 1 from t1 where t1.a<=(19)*c*c | 13))),+e-(f)*case when t1.c not in (coalesce((select max(t1.a) from t1 where not c<(19)),19),e,(19)) then d else f end)+a,19,17)) or (d<t1.a)}
+} {30000}
+do_test randexpr-2.2287 {
+  db eval {SELECT  -~a+d-case d when  -(select max(d)*~min(coalesce((select max(t1.e) from t1 where (exists(select 1 from t1 where 17<>13))),t1.a)-f-a+t1.f) | case (cast(avg(t1.c) AS integer)) when cast(avg(t1.a) AS integer)-(count(*))+max(19) then  - -max(19) else cast(avg(e) AS integer) end from t1)+(select cast(avg(b) AS integer) from t1) then t1.a else e-t1.d end-17+11 FROM t1 WHERE +c-(c)*d in (coalesce((select max( -t1.d-d-13) from t1 where (t1.c) not between (abs(13)/abs(t1.c)) and t1.b),d),11,c)}
+} {}
+do_test randexpr-2.2288 {
+  db eval {SELECT  -~a+d-case d when  -(select max(d)*~min(coalesce((select max(t1.e) from t1 where (exists(select 1 from t1 where 17<>13))),t1.a)-f-a+t1.f) | case (cast(avg(t1.c) AS integer)) when cast(avg(t1.a) AS integer)-(count(*))+max(19) then  - -max(19) else cast(avg(e) AS integer) end from t1)+(select cast(avg(b) AS integer) from t1) then t1.a else e-t1.d end-17+11 FROM t1 WHERE NOT (+c-(c)*d in (coalesce((select max( -t1.d-d-13) from t1 where (t1.c) not between (abs(13)/abs(t1.c)) and t1.b),d),11,c))}
+} {395}
+do_test randexpr-2.2289 {
+  db eval {SELECT  -~a+d-case d when  -(select max(d)*~min(coalesce((select max(t1.e) from t1 where (exists(select 1 from t1 where 17<>13))),t1.a)-f-a+t1.f) & case (cast(avg(t1.c) AS integer)) when cast(avg(t1.a) AS integer)-(count(*))+max(19) then  - -max(19) else cast(avg(e) AS integer) end from t1)+(select cast(avg(b) AS integer) from t1) then t1.a else e-t1.d end-17+11 FROM t1 WHERE NOT (+c-(c)*d in (coalesce((select max( -t1.d-d-13) from t1 where (t1.c) not between (abs(13)/abs(t1.c)) and t1.b),d),11,c))}
+} {395}
+do_test randexpr-2.2290 {
+  db eval {SELECT case when 17 in (case (abs(coalesce((select max((select cast(avg(case when 17-(t1.b)+t1.a | b+b in (select b from t1 union select 17 from t1) then c when t1.f in (select t1.a from t1 union select 19 from t1) then 11 else t1.c end) AS integer) from t1)) from t1 where t1.e>=t1.e or (b)<b or t1.a>=b and c not in (f,t1.a,t1.a)),d))/abs(t1.b)) when 17 then t1.b else 13 end-a,13,17) then t1.a else  -d end FROM t1 WHERE t1.e<t1.e}
+} {}
+do_test randexpr-2.2291 {
+  db eval {SELECT case when 17 in (case (abs(coalesce((select max((select cast(avg(case when 17-(t1.b)+t1.a | b+b in (select b from t1 union select 17 from t1) then c when t1.f in (select t1.a from t1 union select 19 from t1) then 11 else t1.c end) AS integer) from t1)) from t1 where t1.e>=t1.e or (b)<b or t1.a>=b and c not in (f,t1.a,t1.a)),d))/abs(t1.b)) when 17 then t1.b else 13 end-a,13,17) then t1.a else  -d end FROM t1 WHERE NOT (t1.e<t1.e)}
+} {100}
+do_test randexpr-2.2292 {
+  db eval {SELECT case when 17 in (case (abs(coalesce((select max((select cast(avg(case when 17-(t1.b)+t1.a & b+b in (select b from t1 union select 17 from t1) then c when t1.f in (select t1.a from t1 union select 19 from t1) then 11 else t1.c end) AS integer) from t1)) from t1 where t1.e>=t1.e or (b)<b or t1.a>=b and c not in (f,t1.a,t1.a)),d))/abs(t1.b)) when 17 then t1.b else 13 end-a,13,17) then t1.a else  -d end FROM t1 WHERE NOT (t1.e<t1.e)}
+} {100}
+do_test randexpr-2.2293 {
+  db eval {SELECT case t1.a when coalesce((select a from t1 where t1.b>19),b-case when +13>case when (coalesce((select b from t1 where coalesce((select max(t1.f) from t1 where 17<=case c when t1.e+f then d else case when 11<17 and t1.d<=t1.e then 13 when t1.d<>f then (t1.f) else c end end*t1.c),a) in (select 17 from t1 union select b from t1)),t1.c)>= -11) then (a)*t1.a else 19 end then 13 else 17 end*19) then d else (t1.a) end FROM t1 WHERE t1.d+t1.b not in (b,f,coalesce((select max(t1.b) from t1 where exists(select 1 from t1 where c-t1.b not between case when coalesce((select max(~t1.e) from t1 where f not in (t1.b,17,t1.a)),t1.e) not in (e,13,(t1.d)) then 11 when t1.d>=17 then t1.c else 11 end and (11) and (exists(select 1 from t1 where t1.b<>11))) or 13 in (select max(t1.d) from t1 union select max(b) from t1)),t1.b+19+a))}
+} {}
+do_test randexpr-2.2294 {
+  db eval {SELECT case t1.a when coalesce((select a from t1 where t1.b>19),b-case when +13>case when (coalesce((select b from t1 where coalesce((select max(t1.f) from t1 where 17<=case c when t1.e+f then d else case when 11<17 and t1.d<=t1.e then 13 when t1.d<>f then (t1.f) else c end end*t1.c),a) in (select 17 from t1 union select b from t1)),t1.c)>= -11) then (a)*t1.a else 19 end then 13 else 17 end*19) then d else (t1.a) end FROM t1 WHERE NOT (t1.d+t1.b not in (b,f,coalesce((select max(t1.b) from t1 where exists(select 1 from t1 where c-t1.b not between case when coalesce((select max(~t1.e) from t1 where f not in (t1.b,17,t1.a)),t1.e) not in (e,13,(t1.d)) then 11 when t1.d>=17 then t1.c else 11 end and (11) and (exists(select 1 from t1 where t1.b<>11))) or 13 in (select max(t1.d) from t1 union select max(b) from t1)),t1.b+19+a)))}
+} {400}
+do_test randexpr-2.2295 {
+  db eval {SELECT coalesce((select max((coalesce((select coalesce((select max(case when case when e<case 17 when case when t1.e=f then a else t1.b end then 13 else d end then t1.b when 13<>t1.f then t1.b else c end<b or 13<17 then e* -17 else 11 end*e | e) from t1 where 19<>19),t1.f) from t1 where t1.e<>t1.d),t1.b))) from t1 where 11=t1.c), -c) FROM t1 WHERE not exists(select 1 from t1 where  -~e not in (c++case when 17+t1.c<coalesce((select max(t1.c) from t1 where (not exists(select 1 from t1 where 19+coalesce((select a from t1 where d in (( -t1.a), - -b, -t1.f)),e)-a-c>=d))),f-13) then a else (t1.a) end+f*19-a,b,f)) and t1.a=b}
+} {}
+do_test randexpr-2.2296 {
+  db eval {SELECT coalesce((select max((coalesce((select coalesce((select max(case when case when e<case 17 when case when t1.e=f then a else t1.b end then 13 else d end then t1.b when 13<>t1.f then t1.b else c end<b or 13<17 then e* -17 else 11 end*e | e) from t1 where 19<>19),t1.f) from t1 where t1.e<>t1.d),t1.b))) from t1 where 11=t1.c), -c) FROM t1 WHERE NOT (not exists(select 1 from t1 where  -~e not in (c++case when 17+t1.c<coalesce((select max(t1.c) from t1 where (not exists(select 1 from t1 where 19+coalesce((select a from t1 where d in (( -t1.a), - -b, -t1.f)),e)-a-c>=d))),f-13) then a else (t1.a) end+f*19-a,b,f)) and t1.a=b)}
+} {-300}
+do_test randexpr-2.2297 {
+  db eval {SELECT coalesce((select max((coalesce((select coalesce((select max(case when case when e<case 17 when case when t1.e=f then a else t1.b end then 13 else d end then t1.b when 13<>t1.f then t1.b else c end<b or 13<17 then e* -17 else 11 end*e & e) from t1 where 19<>19),t1.f) from t1 where t1.e<>t1.d),t1.b))) from t1 where 11=t1.c), -c) FROM t1 WHERE NOT (not exists(select 1 from t1 where  -~e not in (c++case when 17+t1.c<coalesce((select max(t1.c) from t1 where (not exists(select 1 from t1 where 19+coalesce((select a from t1 where d in (( -t1.a), - -b, -t1.f)),e)-a-c>=d))),f-13) then a else (t1.a) end+f*19-a,b,f)) and t1.a=b)}
+} {-300}
+do_test randexpr-2.2298 {
+  db eval {SELECT t1.b-11-case when t1.d+13+t1.c | 17+case when (+a*t1.b*t1.c not in (e,t1.f,t1.e)) then coalesce((select max(e) from t1 where t1.f>=f), -d) when f>b and t1.e<t1.a or t1.f>t1.c then 17 else  -13 end not in (f,t1.f,a) and exists(select 1 from t1 where a<=11) then t1.e else c end FROM t1 WHERE case f+~d*case when t1.f<=t1.b*t1.a then e*t1.e else f end*a+f when ~case when 11 not between +(abs(b)/abs(case b+d when t1.a then f else t1.e end*13))+a and (b) then t1.e when t1.e<>11 then t1.d else 17 end+11 then t1.d else t1.b end<=13}
+} {}
+do_test randexpr-2.2299 {
+  db eval {SELECT t1.b-11-case when t1.d+13+t1.c | 17+case when (+a*t1.b*t1.c not in (e,t1.f,t1.e)) then coalesce((select max(e) from t1 where t1.f>=f), -d) when f>b and t1.e<t1.a or t1.f>t1.c then 17 else  -13 end not in (f,t1.f,a) and exists(select 1 from t1 where a<=11) then t1.e else c end FROM t1 WHERE NOT (case f+~d*case when t1.f<=t1.b*t1.a then e*t1.e else f end*a+f when ~case when 11 not between +(abs(b)/abs(case b+d when t1.a then f else t1.e end*13))+a and (b) then t1.e when t1.e<>11 then t1.d else 17 end+11 then t1.d else t1.b end<=13)}
+} {-111}
+do_test randexpr-2.2300 {
+  db eval {SELECT t1.b-11-case when t1.d+13+t1.c & 17+case when (+a*t1.b*t1.c not in (e,t1.f,t1.e)) then coalesce((select max(e) from t1 where t1.f>=f), -d) when f>b and t1.e<t1.a or t1.f>t1.c then 17 else  -13 end not in (f,t1.f,a) and exists(select 1 from t1 where a<=11) then t1.e else c end FROM t1 WHERE NOT (case f+~d*case when t1.f<=t1.b*t1.a then e*t1.e else f end*a+f when ~case when 11 not between +(abs(b)/abs(case b+d when t1.a then f else t1.e end*13))+a and (b) then t1.e when t1.e<>11 then t1.d else 17 end+11 then t1.d else t1.b end<=13)}
+} {-111}
+do_test randexpr-2.2301 {
+  db eval {SELECT coalesce((select t1.a from t1 where d not between 11 and 13 or case 13*17 when  -c then case when (coalesce((select 17 from t1 where (~case when t1.e=d then 19 when 11 in (t1.d,b,17) then t1.c else c end-11 in (select max(e) from t1 union select (case cast(avg((t1.b)) AS integer) when max(11) then min(17) else ( -count(*)) end) from t1))),(19))>d) then t1.d else 11 end else t1.c end<=a),c) FROM t1 WHERE 19 | (abs(t1.d)/abs(11))=b}
+} {}
+do_test randexpr-2.2302 {
+  db eval {SELECT coalesce((select t1.a from t1 where d not between 11 and 13 or case 13*17 when  -c then case when (coalesce((select 17 from t1 where (~case when t1.e=d then 19 when 11 in (t1.d,b,17) then t1.c else c end-11 in (select max(e) from t1 union select (case cast(avg((t1.b)) AS integer) when max(11) then min(17) else ( -count(*)) end) from t1))),(19))>d) then t1.d else 11 end else t1.c end<=a),c) FROM t1 WHERE NOT (19 | (abs(t1.d)/abs(11))=b)}
+} {100}
+do_test randexpr-2.2303 {
+  db eval {SELECT coalesce((select max(17-t1.e-17) from t1 where (t1.c>d)),case when coalesce((select +f+~coalesce((select coalesce((select case when (select cast(avg(17) AS integer) | cast(avg(t1.e) AS integer) from t1)<>coalesce((select t1.e from t1 where 19 in (select count(*) from t1 union select  -( -count(*)) from t1)), -d) then b when exists(select 1 from t1 where t1.b between (t1.b) and 13) then a else  -b end from t1 where 19=e),t1.c) from t1 where t1.c<=b),t1.d) from t1 where 17 between t1.a and b),t1.e) between c and t1.e then  -t1.d else 13 end) FROM t1 WHERE exists(select 1 from t1 where t1.e-13-17-f*f*t1.d*coalesce((select 19-case when not not t1.d>e then case when t1.f<t1.a then case when e<=t1.c then t1.e when (c)>=t1.c then 19 else f end else  -t1.b end when e in (f,t1.e,17) then t1.a else t1.b end*t1.d from t1 where ((f)) in (select (~case count(distinct 11) when count(distinct t1.d) | count(distinct t1.b)-max( -f) then max(e) else (count(distinct (((a))))) end) from t1 union select max(e) from t1)),f)+c>=t1.f)}
+} {}
+do_test randexpr-2.2304 {
+  db eval {SELECT coalesce((select max(17-t1.e-17) from t1 where (t1.c>d)),case when coalesce((select +f+~coalesce((select coalesce((select case when (select cast(avg(17) AS integer) | cast(avg(t1.e) AS integer) from t1)<>coalesce((select t1.e from t1 where 19 in (select count(*) from t1 union select  -( -count(*)) from t1)), -d) then b when exists(select 1 from t1 where t1.b between (t1.b) and 13) then a else  -b end from t1 where 19=e),t1.c) from t1 where t1.c<=b),t1.d) from t1 where 17 between t1.a and b),t1.e) between c and t1.e then  -t1.d else 13 end) FROM t1 WHERE NOT (exists(select 1 from t1 where t1.e-13-17-f*f*t1.d*coalesce((select 19-case when not not t1.d>e then case when t1.f<t1.a then case when e<=t1.c then t1.e when (c)>=t1.c then 19 else f end else  -t1.b end when e in (f,t1.e,17) then t1.a else t1.b end*t1.d from t1 where ((f)) in (select (~case count(distinct 11) when count(distinct t1.d) | count(distinct t1.b)-max( -f) then max(e) else (count(distinct (((a))))) end) from t1 union select max(e) from t1)),f)+c>=t1.f))}
+} {-400}
+do_test randexpr-2.2305 {
+  db eval {SELECT coalesce((select max(17-t1.e-17) from t1 where (t1.c>d)),case when coalesce((select +f+~coalesce((select coalesce((select case when (select cast(avg(17) AS integer) & cast(avg(t1.e) AS integer) from t1)<>coalesce((select t1.e from t1 where 19 in (select count(*) from t1 union select  -( -count(*)) from t1)), -d) then b when exists(select 1 from t1 where t1.b between (t1.b) and 13) then a else  -b end from t1 where 19=e),t1.c) from t1 where t1.c<=b),t1.d) from t1 where 17 between t1.a and b),t1.e) between c and t1.e then  -t1.d else 13 end) FROM t1 WHERE NOT (exists(select 1 from t1 where t1.e-13-17-f*f*t1.d*coalesce((select 19-case when not not t1.d>e then case when t1.f<t1.a then case when e<=t1.c then t1.e when (c)>=t1.c then 19 else f end else  -t1.b end when e in (f,t1.e,17) then t1.a else t1.b end*t1.d from t1 where ((f)) in (select (~case count(distinct 11) when count(distinct t1.d) | count(distinct t1.b)-max( -f) then max(e) else (count(distinct (((a))))) end) from t1 union select max(e) from t1)),f)+c>=t1.f))}
+} {-400}
+do_test randexpr-2.2306 {
+  db eval {SELECT coalesce((select t1.b from t1 where exists(select 1 from t1 where (abs(~case (~13*case when c in (select (max(case when b<>11 then d when 13 not in (19,c,e) then t1.f else 19 end*t1.d)) from t1 union select abs(count(*)) | min(19) from t1) then t1.a else t1.c end-a-13-f*e*17) when f then t1.a else 13 end*t1.c)/abs(a))>t1.b)),13) FROM t1 WHERE ++case when a<=t1.a then 17 else 13 end>+f+(coalesce((select max(19) from t1 where 11 not in (case when t1.e<(abs(11)/abs(19*d*t1.c)) and (c in (select t1.c from t1 union select f from t1) or a>a) then t1.a when 11 not between t1.c and t1.a or t1.e not in ( -t1.a,17,f) then t1.d else e end+t1.f,19,(17))),17))* -11}
+} {}
+do_test randexpr-2.2307 {
+  db eval {SELECT coalesce((select t1.b from t1 where exists(select 1 from t1 where (abs(~case (~13*case when c in (select (max(case when b<>11 then d when 13 not in (19,c,e) then t1.f else 19 end*t1.d)) from t1 union select abs(count(*)) | min(19) from t1) then t1.a else t1.c end-a-13-f*e*17) when f then t1.a else 13 end*t1.c)/abs(a))>t1.b)),13) FROM t1 WHERE NOT (++case when a<=t1.a then 17 else 13 end>+f+(coalesce((select max(19) from t1 where 11 not in (case when t1.e<(abs(11)/abs(19*d*t1.c)) and (c in (select t1.c from t1 union select f from t1) or a>a) then t1.a when 11 not between t1.c and t1.a or t1.e not in ( -t1.a,17,f) then t1.d else e end+t1.f,19,(17))),17))* -11)}
+} {13}
+do_test randexpr-2.2308 {
+  db eval {SELECT coalesce((select t1.b from t1 where exists(select 1 from t1 where (abs(~case (~13*case when c in (select (max(case when b<>11 then d when 13 not in (19,c,e) then t1.f else 19 end*t1.d)) from t1 union select abs(count(*)) & min(19) from t1) then t1.a else t1.c end-a-13-f*e*17) when f then t1.a else 13 end*t1.c)/abs(a))>t1.b)),13) FROM t1 WHERE NOT (++case when a<=t1.a then 17 else 13 end>+f+(coalesce((select max(19) from t1 where 11 not in (case when t1.e<(abs(11)/abs(19*d*t1.c)) and (c in (select t1.c from t1 union select f from t1) or a>a) then t1.a when 11 not between t1.c and t1.a or t1.e not in ( -t1.a,17,f) then t1.d else e end+t1.f,19,(17))),17))* -11)}
+} {13}
+do_test randexpr-2.2309 {
+  db eval {SELECT case when c*(abs(t1.f)/abs(c))*b-11-t1.a<coalesce((select max(case when coalesce((select max(c*+(t1.e)) from t1 where t1.c+ - -t1.f*t1.b in (select a from t1 union select d from t1)),t1.e)<>t1.d then  -d else t1.f end*e) from t1 where (b)<>t1.a or 11 between ( -a) and a),t1.b) then t1.d when e=t1.e then t1.c else t1.e end FROM t1 WHERE (coalesce((select (t1.b)+f*case case +coalesce((select 13 from t1 where t1.e<=d),f)-a when d then t1.b else t1.c end+t1.e when a then 17 else t1.e end from t1 where not t1.d in (select b from t1 union select 19 from t1) or not (17<t1.a) or t1.c in (select count(*) from t1 union select max(t1.c) from t1)),t1.e) in (b,t1.b,t1.f) or not exists(select 1 from t1 where not t1.d between 11 and  -t1.f))}
+} {}
+do_test randexpr-2.2310 {
+  db eval {SELECT case when c*(abs(t1.f)/abs(c))*b-11-t1.a<coalesce((select max(case when coalesce((select max(c*+(t1.e)) from t1 where t1.c+ - -t1.f*t1.b in (select a from t1 union select d from t1)),t1.e)<>t1.d then  -d else t1.f end*e) from t1 where (b)<>t1.a or 11 between ( -a) and a),t1.b) then t1.d when e=t1.e then t1.c else t1.e end FROM t1 WHERE NOT ((coalesce((select (t1.b)+f*case case +coalesce((select 13 from t1 where t1.e<=d),f)-a when d then t1.b else t1.c end+t1.e when a then 17 else t1.e end from t1 where not t1.d in (select b from t1 union select 19 from t1) or not (17<t1.a) or t1.c in (select count(*) from t1 union select max(t1.c) from t1)),t1.e) in (b,t1.b,t1.f) or not exists(select 1 from t1 where not t1.d between 11 and  -t1.f)))}
+} {300}
+do_test randexpr-2.2311 {
+  db eval {SELECT (17)+coalesce((select (case when (case (case t1.d when t1.d then 11 else 13 end) when e then e else 13 end*11)*t1.c not between a and 11 then (17) else c end)+t1.a from t1 where 17 in (select max(t1.d)*count(distinct 17) from t1 union select  -cast(avg(t1.d) AS integer)*case case +min(t1.c) when min(e) then cast(avg(b) AS integer) else max(t1.d) end when (max(c)) then cast(avg(t1.b) AS integer) else count(distinct 17) end from t1)),b)-a FROM t1 WHERE ((abs(t1.c)/abs(a)) between 11 | 11 and  -b)}
+} {}
+do_test randexpr-2.2312 {
+  db eval {SELECT (17)+coalesce((select (case when (case (case t1.d when t1.d then 11 else 13 end) when e then e else 13 end*11)*t1.c not between a and 11 then (17) else c end)+t1.a from t1 where 17 in (select max(t1.d)*count(distinct 17) from t1 union select  -cast(avg(t1.d) AS integer)*case case +min(t1.c) when min(e) then cast(avg(b) AS integer) else max(t1.d) end when (max(c)) then cast(avg(t1.b) AS integer) else count(distinct 17) end from t1)),b)-a FROM t1 WHERE NOT (((abs(t1.c)/abs(a)) between 11 | 11 and  -b))}
+} {117}
+do_test randexpr-2.2313 {
+  db eval {SELECT case when case when  -f-case when t1.a between 13 and (e) then t1.d | a else 13 end<t1.d and  -(13) in (select cast(avg(13) AS integer) from t1 union select +count(distinct c)-cast(avg(t1.c) AS integer) from t1) or not exists(select 1 from t1 where (not exists(select 1 from t1 where t1.e<>a) or ( -d) between c and c or (19) between t1.f and t1.b) or (b) not in (t1.d,t1.c,e)) then t1.b*t1.b when a>19 then t1.d else 11 end>=11 then t1.e else  -e end FROM t1 WHERE not exists(select 1 from t1 where ((11<=+11)))}
+} {}
+do_test randexpr-2.2314 {
+  db eval {SELECT case when case when  -f-case when t1.a between 13 and (e) then t1.d | a else 13 end<t1.d and  -(13) in (select cast(avg(13) AS integer) from t1 union select +count(distinct c)-cast(avg(t1.c) AS integer) from t1) or not exists(select 1 from t1 where (not exists(select 1 from t1 where t1.e<>a) or ( -d) between c and c or (19) between t1.f and t1.b) or (b) not in (t1.d,t1.c,e)) then t1.b*t1.b when a>19 then t1.d else 11 end>=11 then t1.e else  -e end FROM t1 WHERE NOT (not exists(select 1 from t1 where ((11<=+11))))}
+} {500}
+do_test randexpr-2.2315 {
+  db eval {SELECT case when case when  -f-case when t1.a between 13 and (e) then t1.d & a else 13 end<t1.d and  -(13) in (select cast(avg(13) AS integer) from t1 union select +count(distinct c)-cast(avg(t1.c) AS integer) from t1) or not exists(select 1 from t1 where (not exists(select 1 from t1 where t1.e<>a) or ( -d) between c and c or (19) between t1.f and t1.b) or (b) not in (t1.d,t1.c,e)) then t1.b*t1.b when a>19 then t1.d else 11 end>=11 then t1.e else  -e end FROM t1 WHERE NOT (not exists(select 1 from t1 where ((11<=+11))))}
+} {500}
+do_test randexpr-2.2316 {
+  db eval {SELECT (abs(+case when 11*t1.d not between 13 and t1.d then coalesce((select 17 from t1 where case ~e when (abs(+(b+(select ~ -cast(avg(t1.c) AS integer) from t1)))/abs(case 17 when 17 then c else a end)) then t1.d else t1.d end<>t1.a),f) when not exists(select 1 from t1 where (19<=(f))) and 17=t1.b or 19 not between a and a then t1.d else d end)/abs(b)) FROM t1 WHERE t1.d-13 in (t1.a,d,(t1.b))}
+} {}
+do_test randexpr-2.2317 {
+  db eval {SELECT (abs(+case when 11*t1.d not between 13 and t1.d then coalesce((select 17 from t1 where case ~e when (abs(+(b+(select ~ -cast(avg(t1.c) AS integer) from t1)))/abs(case 17 when 17 then c else a end)) then t1.d else t1.d end<>t1.a),f) when not exists(select 1 from t1 where (19<=(f))) and 17=t1.b or 19 not between a and a then t1.d else d end)/abs(b)) FROM t1 WHERE NOT (t1.d-13 in (t1.a,d,(t1.b)))}
+} {0}
+do_test randexpr-2.2318 {
+  db eval {SELECT b+(select case ~min(t1.a+13) when (cast(avg(t1.a) AS integer)) then max(d) else max(case when case t1.b when t1.e then t1.c else t1.f end+19<>+(select count(*) from t1) then case when b in (t1.e,t1.d,t1.e) and t1.c not between t1.f and 13 then (t1.c) when 17>t1.b then 19 else t1.b end-t1.d when d in (e,f,t1.f) and (a)<t1.c then 13 else  -t1.e end) end from t1)* -11-t1.f FROM t1 WHERE t1.a between (abs(e)/abs(a)) and t1.f-case when not (19)<>+t1.e then e+case when (exists(select 1 from t1 where d<17) and d<(abs(t1.e)/abs(+ - -t1.f+d))) then coalesce((select max((t1.f)) from t1 where not 19=t1.e),t1.e)+t1.e else t1.d end when not exists(select 1 from t1 where t1.d not in (19,11,t1.c)) then (t1.f) else d end}
+} {1800}
+do_test randexpr-2.2319 {
+  db eval {SELECT b+(select case ~min(t1.a+13) when (cast(avg(t1.a) AS integer)) then max(d) else max(case when case t1.b when t1.e then t1.c else t1.f end+19<>+(select count(*) from t1) then case when b in (t1.e,t1.d,t1.e) and t1.c not between t1.f and 13 then (t1.c) when 17>t1.b then 19 else t1.b end-t1.d when d in (e,f,t1.f) and (a)<t1.c then 13 else  -t1.e end) end from t1)* -11-t1.f FROM t1 WHERE NOT (t1.a between (abs(e)/abs(a)) and t1.f-case when not (19)<>+t1.e then e+case when (exists(select 1 from t1 where d<17) and d<(abs(t1.e)/abs(+ - -t1.f+d))) then coalesce((select max((t1.f)) from t1 where not 19=t1.e),t1.e)+t1.e else t1.d end when not exists(select 1 from t1 where t1.d not in (19,11,t1.c)) then (t1.f) else d end)}
+} {}
+do_test randexpr-2.2320 {
+  db eval {SELECT coalesce((select max(t1.d) from t1 where t1.b+b in (select (t1.c)*11*e+f+ -c-t1.b*coalesce((select max(a) from t1 where t1.a*17 between 19 and (((abs(f)/abs(t1.c+d))))),t1.c-(abs(t1.c)/abs(19)) | case when t1.d= -t1.f then b when (t1.c) not in (e, -11,19) then 19 else t1.a end-c)*t1.a-c from t1 union select t1.d from t1)),a) FROM t1 WHERE (select abs(+min(b)) from t1)<=d+t1.a}
+} {400}
+do_test randexpr-2.2321 {
+  db eval {SELECT coalesce((select max(t1.d) from t1 where t1.b+b in (select (t1.c)*11*e+f+ -c-t1.b*coalesce((select max(a) from t1 where t1.a*17 between 19 and (((abs(f)/abs(t1.c+d))))),t1.c-(abs(t1.c)/abs(19)) | case when t1.d= -t1.f then b when (t1.c) not in (e, -11,19) then 19 else t1.a end-c)*t1.a-c from t1 union select t1.d from t1)),a) FROM t1 WHERE NOT ((select abs(+min(b)) from t1)<=d+t1.a)}
+} {}
+do_test randexpr-2.2322 {
+  db eval {SELECT coalesce((select max(t1.d) from t1 where t1.b+b in (select (t1.c)*11*e+f+ -c-t1.b*coalesce((select max(a) from t1 where t1.a*17 between 19 and (((abs(f)/abs(t1.c+d))))),t1.c-(abs(t1.c)/abs(19)) & case when t1.d= -t1.f then b when (t1.c) not in (e, -11,19) then 19 else t1.a end-c)*t1.a-c from t1 union select t1.d from t1)),a) FROM t1 WHERE (select abs(+min(b)) from t1)<=d+t1.a}
+} {400}
+do_test randexpr-2.2323 {
+  db eval {SELECT case when coalesce((select c from t1 where (~13<>d)),t1.d-+d+13*coalesce((select max(17) from t1 where  -f<case when (abs(a+coalesce((select max(19) from t1 where not t1.d<>d),e))/abs(13))*f not in (t1.e,t1.c,e) then 19 when 17 not between t1.f and 17 then t1.f else t1.e end),f)+t1.c) | d<>11 then a else 19 end FROM t1 WHERE 13=b}
+} {}
+do_test randexpr-2.2324 {
+  db eval {SELECT case when coalesce((select c from t1 where (~13<>d)),t1.d-+d+13*coalesce((select max(17) from t1 where  -f<case when (abs(a+coalesce((select max(19) from t1 where not t1.d<>d),e))/abs(13))*f not in (t1.e,t1.c,e) then 19 when 17 not between t1.f and 17 then t1.f else t1.e end),f)+t1.c) | d<>11 then a else 19 end FROM t1 WHERE NOT (13=b)}
+} {100}
+do_test randexpr-2.2325 {
+  db eval {SELECT case when coalesce((select c from t1 where (~13<>d)),t1.d-+d+13*coalesce((select max(17) from t1 where  -f<case when (abs(a+coalesce((select max(19) from t1 where not t1.d<>d),e))/abs(13))*f not in (t1.e,t1.c,e) then 19 when 17 not between t1.f and 17 then t1.f else t1.e end),f)+t1.c) & d<>11 then a else 19 end FROM t1 WHERE NOT (13=b)}
+} {100}
+do_test randexpr-2.2326 {
+  db eval {SELECT case case t1.e+13 when case when not  -f>coalesce((select max(t1.b) from t1 where (select min(a) from t1)<a),a) then case when not exists(select 1 from t1 where d>t1.d and t1.c<19 and d between b and ( -c)) then (select case ~max( -( - -t1.f)) when min(e) then  -count(*) else count(*) end-cast(avg(b) AS integer) from t1) when 17<>11 then f else case  -17 when t1.d then b else  -t1.f end end+t1.e when t1.d>=11 then 17 else 11 end then t1.d else t1.d end when t1.c then t1.a else 11 end FROM t1 WHERE (coalesce((select coalesce((select max(coalesce((select max( -(select + -case ++case (count(*)) when cast(avg(11) AS integer) then count(*) else  -min(13) end when max(19) then  -cast(avg(11) AS integer) else count(distinct (b)) end | max(t1.a)+max(b) from t1)) from t1 where 11 in (select b from t1 union select 13 from t1)),case (select count(*) from t1) when 19 then case when d not between  -d and b then t1.f else t1.b end else t1.c end)+d-t1.e) from t1 where t1.f not between t1.c and 19),t1.b) from t1 where t1.c between d and  -t1.b),t1.b))>=c}
+} {}
+do_test randexpr-2.2327 {
+  db eval {SELECT case case t1.e+13 when case when not  -f>coalesce((select max(t1.b) from t1 where (select min(a) from t1)<a),a) then case when not exists(select 1 from t1 where d>t1.d and t1.c<19 and d between b and ( -c)) then (select case ~max( -( - -t1.f)) when min(e) then  -count(*) else count(*) end-cast(avg(b) AS integer) from t1) when 17<>11 then f else case  -17 when t1.d then b else  -t1.f end end+t1.e when t1.d>=11 then 17 else 11 end then t1.d else t1.d end when t1.c then t1.a else 11 end FROM t1 WHERE NOT ((coalesce((select coalesce((select max(coalesce((select max( -(select + -case ++case (count(*)) when cast(avg(11) AS integer) then count(*) else  -min(13) end when max(19) then  -cast(avg(11) AS integer) else count(distinct (b)) end | max(t1.a)+max(b) from t1)) from t1 where 11 in (select b from t1 union select 13 from t1)),case (select count(*) from t1) when 19 then case when d not between  -d and b then t1.f else t1.b end else t1.c end)+d-t1.e) from t1 where t1.f not between t1.c and 19),t1.b) from t1 where t1.c between d and  -t1.b),t1.b))>=c)}
+} {11}
+do_test randexpr-2.2328 {
+  db eval {SELECT case when +case when coalesce((select t1.b from t1 where not exists(select 1 from t1 where f<=coalesce((select c from t1 where t1.a in (select ~f from t1 union select coalesce((select max(case  -(13) when 13 then t1.f else a end | 13) from t1 where c<= -c or b not between f and t1.d and t1.b not in (e,t1.a,17)),a)+d from t1)),13) or t1.a>c)),11*19) between e and 17 then c else  -(c) end>=t1.c then t1.d else c end FROM t1 WHERE t1.d<17-t1.a | a-+11}
+} {}
+do_test randexpr-2.2329 {
+  db eval {SELECT case when +case when coalesce((select t1.b from t1 where not exists(select 1 from t1 where f<=coalesce((select c from t1 where t1.a in (select ~f from t1 union select coalesce((select max(case  -(13) when 13 then t1.f else a end | 13) from t1 where c<= -c or b not between f and t1.d and t1.b not in (e,t1.a,17)),a)+d from t1)),13) or t1.a>c)),11*19) between e and 17 then c else  -(c) end>=t1.c then t1.d else c end FROM t1 WHERE NOT (t1.d<17-t1.a | a-+11)}
+} {300}
+do_test randexpr-2.2330 {
+  db eval {SELECT case when +case when coalesce((select t1.b from t1 where not exists(select 1 from t1 where f<=coalesce((select c from t1 where t1.a in (select ~f from t1 union select coalesce((select max(case  -(13) when 13 then t1.f else a end & 13) from t1 where c<= -c or b not between f and t1.d and t1.b not in (e,t1.a,17)),a)+d from t1)),13) or t1.a>c)),11*19) between e and 17 then c else  -(c) end>=t1.c then t1.d else c end FROM t1 WHERE NOT (t1.d<17-t1.a | a-+11)}
+} {300}
+do_test randexpr-2.2331 {
+  db eval {SELECT t1.c+c- -d*t1.d+t1.e | case when t1.e<=e and (a*t1.c) in (select ((abs(f)/abs(( -+(select abs(~(min( -c))-max( - -b)-count(*)) from t1))))) from t1 union select b from t1) then +a*t1.c-t1.d*t1.c else e end-t1.d+t1.f FROM t1 WHERE (exists(select 1 from t1 where coalesce((select max(++11+coalesce((select max(17) from t1 where case case when exists(select 1 from t1 where c not between t1.e and 17) then 19 else f end when  -t1.f then t1.f else t1.a end<=t1.e or 11 in (b,a,e) and e between 11 and 11), -(a)-19)*t1.f) from t1 where t1.b between d and 17 and 17=e),19) not in (a,b,b))) and (e>=d) or b not in (c,13,19)}
+} {161788}
+do_test randexpr-2.2332 {
+  db eval {SELECT t1.c+c- -d*t1.d+t1.e | case when t1.e<=e and (a*t1.c) in (select ((abs(f)/abs(( -+(select abs(~(min( -c))-max( - -b)-count(*)) from t1))))) from t1 union select b from t1) then +a*t1.c-t1.d*t1.c else e end-t1.d+t1.f FROM t1 WHERE NOT ((exists(select 1 from t1 where coalesce((select max(++11+coalesce((select max(17) from t1 where case case when exists(select 1 from t1 where c not between t1.e and 17) then 19 else f end when  -t1.f then t1.f else t1.a end<=t1.e or 11 in (b,a,e) and e between 11 and 11), -(a)-19)*t1.f) from t1 where t1.b between d and 17 and 17=e),19) not in (a,b,b))) and (e>=d) or b not in (c,13,19))}
+} {}
+do_test randexpr-2.2333 {
+  db eval {SELECT t1.c+c- -d*t1.d+t1.e & case when t1.e<=e and (a*t1.c) in (select ((abs(f)/abs(( -+(select abs(~(min( -c))-max( - -b)-count(*)) from t1))))) from t1 union select b from t1) then +a*t1.c-t1.d*t1.c else e end-t1.d+t1.f FROM t1 WHERE (exists(select 1 from t1 where coalesce((select max(++11+coalesce((select max(17) from t1 where case case when exists(select 1 from t1 where c not between t1.e and 17) then 19 else f end when  -t1.f then t1.f else t1.a end<=t1.e or 11 in (b,a,e) and e between 11 and 11), -(a)-19)*t1.f) from t1 where t1.b between d and 17 and 17=e),19) not in (a,b,b))) and (e>=d) or b not in (c,13,19)}
+} {12}
+do_test randexpr-2.2334 {
+  db eval {SELECT b-case when exists(select 1 from t1 where (exists(select 1 from t1 where t1.a not between 17 and a+t1.f) or not exists(select 1 from t1 where not exists(select 1 from t1 where t1.b+f+a in (select max(19) |  -max(t1.e)-cast(avg(t1.c) AS integer)- -count(distinct t1.b) from t1 union select max(t1.b) from t1)) or not exists(select 1 from t1 where not exists(select 1 from t1 where 11>c or (13) in ( -11,c,19)) or 11>f))) and t1.c not in ( -(d),t1.a,t1.a) and 17 in (t1.b,13,19)) then coalesce((select max(+19) from t1 where 17<b),13) else (abs(11)/abs(t1.e)) end FROM t1 WHERE not exists(select 1 from t1 where (13 between f and (e) or (f-d in (select t1.c*t1.d | f-19 from t1 union select 19*t1.d*coalesce((select coalesce((select max(t1.d-c*11) from t1 where 17= -t1.a),t1.a)-c from t1 where exists(select 1 from t1 where 17>e)),b) from t1))) or ((t1.d<f)))}
+} {}
+do_test randexpr-2.2335 {
+  db eval {SELECT b-case when exists(select 1 from t1 where (exists(select 1 from t1 where t1.a not between 17 and a+t1.f) or not exists(select 1 from t1 where not exists(select 1 from t1 where t1.b+f+a in (select max(19) |  -max(t1.e)-cast(avg(t1.c) AS integer)- -count(distinct t1.b) from t1 union select max(t1.b) from t1)) or not exists(select 1 from t1 where not exists(select 1 from t1 where 11>c or (13) in ( -11,c,19)) or 11>f))) and t1.c not in ( -(d),t1.a,t1.a) and 17 in (t1.b,13,19)) then coalesce((select max(+19) from t1 where 17<b),13) else (abs(11)/abs(t1.e)) end FROM t1 WHERE NOT (not exists(select 1 from t1 where (13 between f and (e) or (f-d in (select t1.c*t1.d | f-19 from t1 union select 19*t1.d*coalesce((select coalesce((select max(t1.d-c*11) from t1 where 17= -t1.a),t1.a)-c from t1 where exists(select 1 from t1 where 17>e)),b) from t1))) or ((t1.d<f))))}
+} {200}
+do_test randexpr-2.2336 {
+  db eval {SELECT b-case when exists(select 1 from t1 where (exists(select 1 from t1 where t1.a not between 17 and a+t1.f) or not exists(select 1 from t1 where not exists(select 1 from t1 where t1.b+f+a in (select max(19) &  -max(t1.e)-cast(avg(t1.c) AS integer)- -count(distinct t1.b) from t1 union select max(t1.b) from t1)) or not exists(select 1 from t1 where not exists(select 1 from t1 where 11>c or (13) in ( -11,c,19)) or 11>f))) and t1.c not in ( -(d),t1.a,t1.a) and 17 in (t1.b,13,19)) then coalesce((select max(+19) from t1 where 17<b),13) else (abs(11)/abs(t1.e)) end FROM t1 WHERE NOT (not exists(select 1 from t1 where (13 between f and (e) or (f-d in (select t1.c*t1.d | f-19 from t1 union select 19*t1.d*coalesce((select coalesce((select max(t1.d-c*11) from t1 where 17= -t1.a),t1.a)-c from t1 where exists(select 1 from t1 where 17>e)),b) from t1))) or ((t1.d<f))))}
+} {200}
+do_test randexpr-2.2337 {
+  db eval {SELECT coalesce((select t1.f*t1.b+case t1.a when 17 then  -t1.c else coalesce((select b from t1 where 19 in (f,d+b,coalesce((select t1.e-b from t1 where t1.b*d+case t1.c when case coalesce((select t1.b from t1 where c not in (b,a,13)),(13)) when t1.b then 19 else 19 end then t1.d else 19 end+ -b>= -t1.f),t1.c))),b) end from t1 where not a=11),t1.c) FROM t1 WHERE not 13<>11+17-case when 17 between (abs(case f when 19 | t1.a then +(select cast(avg(case when not exists(select 1 from t1 where ~ -13*(select  -cast(avg(t1.b*d) AS integer) from t1)+17<>(t1.b)) then ~t1.c when b>t1.d then c else (f) end) AS integer) from t1) else a end)/abs(19)) and t1.f then t1.b when a<>t1.c then t1.e else b end}
+} {}
+do_test randexpr-2.2338 {
+  db eval {SELECT coalesce((select t1.f*t1.b+case t1.a when 17 then  -t1.c else coalesce((select b from t1 where 19 in (f,d+b,coalesce((select t1.e-b from t1 where t1.b*d+case t1.c when case coalesce((select t1.b from t1 where c not in (b,a,13)),(13)) when t1.b then 19 else 19 end then t1.d else 19 end+ -b>= -t1.f),t1.c))),b) end from t1 where not a=11),t1.c) FROM t1 WHERE NOT (not 13<>11+17-case when 17 between (abs(case f when 19 | t1.a then +(select cast(avg(case when not exists(select 1 from t1 where ~ -13*(select  -cast(avg(t1.b*d) AS integer) from t1)+17<>(t1.b)) then ~t1.c when b>t1.d then c else (f) end) AS integer) from t1) else a end)/abs(19)) and t1.f then t1.b when a<>t1.c then t1.e else b end)}
+} {120200}
+do_test randexpr-2.2339 {
+  db eval {SELECT coalesce((select max(19) from t1 where t1.f*17+case t1.f when 11 then coalesce((select max(t1.a) from t1 where 13<>t1.d),(abs(13+b-case when not c+(abs(case when t1.c not between a and t1.f then  -(e) else t1.d end)/abs( -17))<a then 11 else t1.c end)/abs(17)))*d*t1.a else c end-((f))-e*t1.a<17),t1.f)+t1.a FROM t1 WHERE e>=13}
+} {119}
+do_test randexpr-2.2340 {
+  db eval {SELECT coalesce((select max(19) from t1 where t1.f*17+case t1.f when 11 then coalesce((select max(t1.a) from t1 where 13<>t1.d),(abs(13+b-case when not c+(abs(case when t1.c not between a and t1.f then  -(e) else t1.d end)/abs( -17))<a then 11 else t1.c end)/abs(17)))*d*t1.a else c end-((f))-e*t1.a<17),t1.f)+t1.a FROM t1 WHERE NOT (e>=13)}
+} {}
+do_test randexpr-2.2341 {
+  db eval {SELECT +coalesce((select max(e) from t1 where  -(case 13*(t1.b* -case when e<=19 then b when t1.e=c then (b) else f end*t1.e) when e then 13 else t1.f end)=t1.b and t1.a in (select count(*) | case case min(b)*(count(*)) when abs(cast(avg(13) AS integer))-max(t1.d) then min(19) else  -cast(avg(b) AS integer) end when count(*) then (max(c)) else count(distinct 19) end+cast(avg((b)) AS integer) from t1 union select count(*) from t1)),t1.a) FROM t1 WHERE (select (min(13-(abs(c)/abs(case when coalesce((select case when coalesce((select  -a from t1 where case a*f when t1.a then  -c else (f) end between t1.a and t1.c),b) not between t1.e and b then 19 when 17 not in (19,d,11) then b else a end from t1 where b in (select t1.e from t1 union select t1.b from t1)),t1.a) not in (t1.e,t1.a,t1.f) then (d) else 19 end)))) from t1) in (select +13 from t1 union select 17 from t1)}
+} {100}
+do_test randexpr-2.2342 {
+  db eval {SELECT +coalesce((select max(e) from t1 where  -(case 13*(t1.b* -case when e<=19 then b when t1.e=c then (b) else f end*t1.e) when e then 13 else t1.f end)=t1.b and t1.a in (select count(*) | case case min(b)*(count(*)) when abs(cast(avg(13) AS integer))-max(t1.d) then min(19) else  -cast(avg(b) AS integer) end when count(*) then (max(c)) else count(distinct 19) end+cast(avg((b)) AS integer) from t1 union select count(*) from t1)),t1.a) FROM t1 WHERE NOT ((select (min(13-(abs(c)/abs(case when coalesce((select case when coalesce((select  -a from t1 where case a*f when t1.a then  -c else (f) end between t1.a and t1.c),b) not between t1.e and b then 19 when 17 not in (19,d,11) then b else a end from t1 where b in (select t1.e from t1 union select t1.b from t1)),t1.a) not in (t1.e,t1.a,t1.f) then (d) else 19 end)))) from t1) in (select +13 from t1 union select 17 from t1))}
+} {}
+do_test randexpr-2.2343 {
+  db eval {SELECT +coalesce((select max(e) from t1 where  -(case 13*(t1.b* -case when e<=19 then b when t1.e=c then (b) else f end*t1.e) when e then 13 else t1.f end)=t1.b and t1.a in (select count(*) & case case min(b)*(count(*)) when abs(cast(avg(13) AS integer))-max(t1.d) then min(19) else  -cast(avg(b) AS integer) end when count(*) then (max(c)) else count(distinct 19) end+cast(avg((b)) AS integer) from t1 union select count(*) from t1)),t1.a) FROM t1 WHERE (select (min(13-(abs(c)/abs(case when coalesce((select case when coalesce((select  -a from t1 where case a*f when t1.a then  -c else (f) end between t1.a and t1.c),b) not between t1.e and b then 19 when 17 not in (19,d,11) then b else a end from t1 where b in (select t1.e from t1 union select t1.b from t1)),t1.a) not in (t1.e,t1.a,t1.f) then (d) else 19 end)))) from t1) in (select +13 from t1 union select 17 from t1)}
+} {100}
+do_test randexpr-2.2344 {
+  db eval {SELECT case when b in (select 19 from t1 union select c from t1) then  -d else 19-13+coalesce((select t1.c from t1 where t1.d>=case when e in (select f*t1.b from t1 union select t1.d from t1) then t1.c when not exists(select 1 from t1 where t1.f not in (17,t1.c,11) and b between b and 17 or c in (t1.b,17,a) or t1.d>t1.d and t1.c<>11 and 13=e and t1.f not in ( -t1.c,19,f)) then coalesce((select max(case when t1.c in (t1.e,d,b) then t1.f else t1.a end) from t1 where e<=t1.f),11) else t1.b end*11),t1.e) end FROM t1 WHERE 13 not between +19 and a}
+} {506}
+do_test randexpr-2.2345 {
+  db eval {SELECT case when b in (select 19 from t1 union select c from t1) then  -d else 19-13+coalesce((select t1.c from t1 where t1.d>=case when e in (select f*t1.b from t1 union select t1.d from t1) then t1.c when not exists(select 1 from t1 where t1.f not in (17,t1.c,11) and b between b and 17 or c in (t1.b,17,a) or t1.d>t1.d and t1.c<>11 and 13=e and t1.f not in ( -t1.c,19,f)) then coalesce((select max(case when t1.c in (t1.e,d,b) then t1.f else t1.a end) from t1 where e<=t1.f),11) else t1.b end*11),t1.e) end FROM t1 WHERE NOT (13 not between +19 and a)}
+} {}
+do_test randexpr-2.2346 {
+  db eval {SELECT (abs(13)/abs(case when t1.f not between a and f then 19-t1.d-t1.d*d | c+(select case count(*) | (~ -count(*)) when cast(avg( -19) AS integer) then min(d) else (cast(avg(e) AS integer)) end from t1) | t1.f-t1.b when f<>case when f<>b and 19 in (d,( -t1.a),t1.c) then 11 when e not between b and (t1.d) then t1.e else t1.d end-t1.e or t1.b not in (f,c,(a)) then  -d else t1.f end-t1.f)) FROM t1 WHERE (select  -count(*) from t1)=d+11}
+} {}
+do_test randexpr-2.2347 {
+  db eval {SELECT (abs(13)/abs(case when t1.f not between a and f then 19-t1.d-t1.d*d | c+(select case count(*) | (~ -count(*)) when cast(avg( -19) AS integer) then min(d) else (cast(avg(e) AS integer)) end from t1) | t1.f-t1.b when f<>case when f<>b and 19 in (d,( -t1.a),t1.c) then 11 when e not between b and (t1.d) then t1.e else t1.d end-t1.e or t1.b not in (f,c,(a)) then  -d else t1.f end-t1.f)) FROM t1 WHERE NOT ((select  -count(*) from t1)=d+11)}
+} {0}
+do_test randexpr-2.2348 {
+  db eval {SELECT (abs(13)/abs(case when t1.f not between a and f then 19-t1.d-t1.d*d & c+(select case count(*) & (~ -count(*)) when cast(avg( -19) AS integer) then min(d) else (cast(avg(e) AS integer)) end from t1) & t1.f-t1.b when f<>case when f<>b and 19 in (d,( -t1.a),t1.c) then 11 when e not between b and (t1.d) then t1.e else t1.d end-t1.e or t1.b not in (f,c,(a)) then  -d else t1.f end-t1.f)) FROM t1 WHERE NOT ((select  -count(*) from t1)=d+11)}
+} {0}
+do_test randexpr-2.2349 {
+  db eval {SELECT ((select count(distinct 11+19 | case (d) when t1.b then coalesce((select case coalesce((select max(+c*t1.f) from t1 where (t1.e=f and 13<=t1.d)), -17)+11-t1.a when (t1.c) then 19 else 13 end from t1 where t1.c in (select ~+ -count(distinct t1.f) from t1 union select count(*)+count(distinct b)*min(11) from t1)),e) else 19 end+d) | count(*) from t1)) FROM t1 WHERE case b when 19 then ~b-~e-d+d+t1.c else a end in (select max(t1.b)-~count(*)+abs(abs((case min((abs(~t1.c*t1.f)/abs(t1.e))) when case max(b) when abs(count(distinct t1.b)) then +cast(avg((13)) AS integer) else +case min(b) when count(*) then count(*) else count(distinct t1.f) end end then max(19) else ( -count(*)) end)))*count(distinct f)*cast(avg(t1.c) AS integer) from t1 union select count(distinct a) from t1)}
+} {}
+do_test randexpr-2.2350 {
+  db eval {SELECT ((select count(distinct 11+19 | case (d) when t1.b then coalesce((select case coalesce((select max(+c*t1.f) from t1 where (t1.e=f and 13<=t1.d)), -17)+11-t1.a when (t1.c) then 19 else 13 end from t1 where t1.c in (select ~+ -count(distinct t1.f) from t1 union select count(*)+count(distinct b)*min(11) from t1)),e) else 19 end+d) | count(*) from t1)) FROM t1 WHERE NOT (case b when 19 then ~b-~e-d+d+t1.c else a end in (select max(t1.b)-~count(*)+abs(abs((case min((abs(~t1.c*t1.f)/abs(t1.e))) when case max(b) when abs(count(distinct t1.b)) then +cast(avg((13)) AS integer) else +case min(b) when count(*) then count(*) else count(distinct t1.f) end end then max(19) else ( -count(*)) end)))*count(distinct f)*cast(avg(t1.c) AS integer) from t1 union select count(distinct a) from t1))}
+} {1}
+do_test randexpr-2.2351 {
+  db eval {SELECT ((select count(distinct 11+19 & case (d) when t1.b then coalesce((select case coalesce((select max(+c*t1.f) from t1 where (t1.e=f and 13<=t1.d)), -17)+11-t1.a when (t1.c) then 19 else 13 end from t1 where t1.c in (select ~+ -count(distinct t1.f) from t1 union select count(*)+count(distinct b)*min(11) from t1)),e) else 19 end+d) & count(*) from t1)) FROM t1 WHERE NOT (case b when 19 then ~b-~e-d+d+t1.c else a end in (select max(t1.b)-~count(*)+abs(abs((case min((abs(~t1.c*t1.f)/abs(t1.e))) when case max(b) when abs(count(distinct t1.b)) then +cast(avg((13)) AS integer) else +case min(b) when count(*) then count(*) else count(distinct t1.f) end end then max(19) else ( -count(*)) end)))*count(distinct f)*cast(avg(t1.c) AS integer) from t1 union select count(distinct a) from t1))}
+} {1}
+do_test randexpr-2.2352 {
+  db eval {SELECT 17+ -(abs(case case when a>t1.c then t1.e else a end*11-case when not exists(select 1 from t1 where coalesce((select  -t1.e-11+coalesce((select t1.e from t1 where 13=t1.e),d) from t1 where t1.e between t1.d and a),13)-t1.e in (select t1.d from t1 union select d from t1)) then t1.b else t1.d end-t1.e-13+b when 19 then t1.b else c end)/abs(t1.d)) FROM t1 WHERE coalesce((select max(t1.d) from t1 where t1.a+t1.d<19),t1.a) in (select t1.b from t1 union select c from t1) or t1.c in (select  -abs(max(case when  -f<>t1.b and b<>11 then t1.f when t1.a=e then t1.d else  -(f) end) | case cast(avg(f) AS integer) when count(distinct t1.f) then min(e) else  -count(*) end+cast(avg((t1.f)) AS integer)) from t1 union select max(17) from t1) or t1.c between ((c)) and  -t1.b and  -c not between d and 11 or b>=19}
+} {17}
+do_test randexpr-2.2353 {
+  db eval {SELECT 17+ -(abs(case case when a>t1.c then t1.e else a end*11-case when not exists(select 1 from t1 where coalesce((select  -t1.e-11+coalesce((select t1.e from t1 where 13=t1.e),d) from t1 where t1.e between t1.d and a),13)-t1.e in (select t1.d from t1 union select d from t1)) then t1.b else t1.d end-t1.e-13+b when 19 then t1.b else c end)/abs(t1.d)) FROM t1 WHERE NOT (coalesce((select max(t1.d) from t1 where t1.a+t1.d<19),t1.a) in (select t1.b from t1 union select c from t1) or t1.c in (select  -abs(max(case when  -f<>t1.b and b<>11 then t1.f when t1.a=e then t1.d else  -(f) end) | case cast(avg(f) AS integer) when count(distinct t1.f) then min(e) else  -count(*) end+cast(avg((t1.f)) AS integer)) from t1 union select max(17) from t1) or t1.c between ((c)) and  -t1.b and  -c not between d and 11 or b>=19)}
+} {}
+do_test randexpr-2.2354 {
+  db eval {SELECT e*~+(e)-(abs(~case when (t1.f)>13+~t1.d then case when d=t1.b+13 then 17 when 11 in (t1.d,e,e) then ~19*t1.a else coalesce((select t1.c from t1 where 19*(abs(t1.e)/abs(b)) between t1.c and t1.c),t1.d) end when a not between 13 and  -17 then 19 else b end)/abs(t1.b)) FROM t1 WHERE (not d>case t1.b+t1.f when +(~(select (case abs(cast(avg(13) AS integer)) when cast(avg(+a) AS integer) then abs(abs(count(distinct case when t1.f*e<=11 then 13 when exists(select 1 from t1 where t1.e<17 or t1.a>=t1.a) then (11) else f end))) else min(t1.b)-min(11) end) from t1))+17*t1.b*f*17 then e else 11 end)}
+} {}
+do_test randexpr-2.2355 {
+  db eval {SELECT e*~+(e)-(abs(~case when (t1.f)>13+~t1.d then case when d=t1.b+13 then 17 when 11 in (t1.d,e,e) then ~19*t1.a else coalesce((select t1.c from t1 where 19*(abs(t1.e)/abs(b)) between t1.c and t1.c),t1.d) end when a not between 13 and  -17 then 19 else b end)/abs(t1.b)) FROM t1 WHERE NOT ((not d>case t1.b+t1.f when +(~(select (case abs(cast(avg(13) AS integer)) when cast(avg(+a) AS integer) then abs(abs(count(distinct case when t1.f*e<=11 then 13 when exists(select 1 from t1 where t1.e<17 or t1.a>=t1.a) then (11) else f end))) else min(t1.b)-min(11) end) from t1))+17*t1.b*f*17 then e else 11 end))}
+} {-250502}
+do_test randexpr-2.2356 {
+  db eval {SELECT  -case when t1.c<= -case coalesce((select max((coalesce((select case 11 when t1.b then t1.f else 11 end-d from t1 where c in (select count(*) | ~count(distinct f) from t1 union select count(*) from t1)),a)*t1.a)-t1.f) from t1 where not exists(select 1 from t1 where ((t1.f not in ( -c,t1.d,b)) or t1.a not in (b,11,t1.c)) or t1.d not in (17,a,t1.a))),19)-t1.b when d then t1.e else t1.e end-19 | e then b else  -13 end*e-c FROM t1 WHERE b<>coalesce((select max((abs((abs(11)/abs(13)))/abs(case when t1.e between 11 and 19 then t1.d when 11>=b-19 then (select count(distinct ~a | 19*f+case when f not in (t1.e,t1.f, -t1.f) then 17 when c not in ( -t1.a,t1.c,b) then f else 11 end) from t1) else t1.e end))-t1.e*a) from t1 where e in (t1.c,17,17)),t1.a) or a=t1.e or d>t1.b}
+} {6200}
+do_test randexpr-2.2357 {
+  db eval {SELECT  -case when t1.c<= -case coalesce((select max((coalesce((select case 11 when t1.b then t1.f else 11 end-d from t1 where c in (select count(*) | ~count(distinct f) from t1 union select count(*) from t1)),a)*t1.a)-t1.f) from t1 where not exists(select 1 from t1 where ((t1.f not in ( -c,t1.d,b)) or t1.a not in (b,11,t1.c)) or t1.d not in (17,a,t1.a))),19)-t1.b when d then t1.e else t1.e end-19 | e then b else  -13 end*e-c FROM t1 WHERE NOT (b<>coalesce((select max((abs((abs(11)/abs(13)))/abs(case when t1.e between 11 and 19 then t1.d when 11>=b-19 then (select count(distinct ~a | 19*f+case when f not in (t1.e,t1.f, -t1.f) then 17 when c not in ( -t1.a,t1.c,b) then f else 11 end) from t1) else t1.e end))-t1.e*a) from t1 where e in (t1.c,17,17)),t1.a) or a=t1.e or d>t1.b)}
+} {}
+do_test randexpr-2.2358 {
+  db eval {SELECT  -case when t1.c<= -case coalesce((select max((coalesce((select case 11 when t1.b then t1.f else 11 end-d from t1 where c in (select count(*) & ~count(distinct f) from t1 union select count(*) from t1)),a)*t1.a)-t1.f) from t1 where not exists(select 1 from t1 where ((t1.f not in ( -c,t1.d,b)) or t1.a not in (b,11,t1.c)) or t1.d not in (17,a,t1.a))),19)-t1.b when d then t1.e else t1.e end-19 & e then b else  -13 end*e-c FROM t1 WHERE b<>coalesce((select max((abs((abs(11)/abs(13)))/abs(case when t1.e between 11 and 19 then t1.d when 11>=b-19 then (select count(distinct ~a | 19*f+case when f not in (t1.e,t1.f, -t1.f) then 17 when c not in ( -t1.a,t1.c,b) then f else 11 end) from t1) else t1.e end))-t1.e*a) from t1 where e in (t1.c,17,17)),t1.a) or a=t1.e or d>t1.b}
+} {-100300}
+do_test randexpr-2.2359 {
+  db eval {SELECT (abs(case when t1.d not in (t1.f,t1.d,(select abs(min(((select +count(*)*case max(t1.e-coalesce((select max(case t1.b when 13 then a else e end) from t1 where t1.b>b),19)+d)- -+count(*) when +cast(avg(d) AS integer) then max(c) else (cast(avg(c) AS integer)) end | count(*) from t1)+t1.f)))-max(t1.c) from t1)) then t1.b*t1.f else f end)/abs(b+19)) FROM t1 WHERE a not in ((11),(t1.d),a) or case when f<t1.e | 11+t1.b+17-coalesce((select t1.f+case when ((not (t1.d)>(abs(d)/abs(t1.d)))) then a when f not between t1.f | t1.b and t1.d then a else 13 end from t1 where 19<=c),f) then t1.a else f end between 13 and 11}
+} {}
+do_test randexpr-2.2360 {
+  db eval {SELECT (abs(case when t1.d not in (t1.f,t1.d,(select abs(min(((select +count(*)*case max(t1.e-coalesce((select max(case t1.b when 13 then a else e end) from t1 where t1.b>b),19)+d)- -+count(*) when +cast(avg(d) AS integer) then max(c) else (cast(avg(c) AS integer)) end | count(*) from t1)+t1.f)))-max(t1.c) from t1)) then t1.b*t1.f else f end)/abs(b+19)) FROM t1 WHERE NOT (a not in ((11),(t1.d),a) or case when f<t1.e | 11+t1.b+17-coalesce((select t1.f+case when ((not (t1.d)>(abs(d)/abs(t1.d)))) then a when f not between t1.f | t1.b and t1.d then a else 13 end from t1 where 19<=c),f) then t1.a else f end between 13 and 11)}
+} {2}
+do_test randexpr-2.2361 {
+  db eval {SELECT (abs(case when t1.d not in (t1.f,t1.d,(select abs(min(((select +count(*)*case max(t1.e-coalesce((select max(case t1.b when 13 then a else e end) from t1 where t1.b>b),19)+d)- -+count(*) when +cast(avg(d) AS integer) then max(c) else (cast(avg(c) AS integer)) end & count(*) from t1)+t1.f)))-max(t1.c) from t1)) then t1.b*t1.f else f end)/abs(b+19)) FROM t1 WHERE NOT (a not in ((11),(t1.d),a) or case when f<t1.e | 11+t1.b+17-coalesce((select t1.f+case when ((not (t1.d)>(abs(d)/abs(t1.d)))) then a when f not between t1.f | t1.b and t1.d then a else 13 end from t1 where 19<=c),f) then t1.a else f end between 13 and 11)}
+} {2}
+do_test randexpr-2.2362 {
+  db eval {SELECT t1.a+d | +case when +t1.a-t1.f++t1.c+(select case ~count(*) when (+cast(avg(f*t1.f) AS integer) | min(t1.b)) then  -(cast(avg(t1.f) AS integer)) else min(e) end from t1)-b* - -13-f+c in (select b from t1 union select t1.d from t1) or e<e then b | 13 else t1.c end FROM t1 WHERE coalesce((select max(coalesce((select  -e*a from t1 where (select max(case t1.a when b then d else 17 end) from t1) in (select 17 from t1 union select  -case when exists(select 1 from t1 where coalesce((select t1.d from t1 where t1.a not between t1.d and 17 and 19=17),t1.c)-t1.e+b<=a) then 17 | c when  -e<=d then 13 else (b) end from t1)),e)) from t1 where t1.e not in (11, -t1.b,(f))),t1.c) not in ( -c,t1.d,t1.d) and b<=13}
+} {}
+do_test randexpr-2.2363 {
+  db eval {SELECT t1.a+d | +case when +t1.a-t1.f++t1.c+(select case ~count(*) when (+cast(avg(f*t1.f) AS integer) | min(t1.b)) then  -(cast(avg(t1.f) AS integer)) else min(e) end from t1)-b* - -13-f+c in (select b from t1 union select t1.d from t1) or e<e then b | 13 else t1.c end FROM t1 WHERE NOT (coalesce((select max(coalesce((select  -e*a from t1 where (select max(case t1.a when b then d else 17 end) from t1) in (select 17 from t1 union select  -case when exists(select 1 from t1 where coalesce((select t1.d from t1 where t1.a not between t1.d and 17 and 19=17),t1.c)-t1.e+b<=a) then 17 | c when  -e<=d then 13 else (b) end from t1)),e)) from t1 where t1.e not in (11, -t1.b,(f))),t1.c) not in ( -c,t1.d,t1.d) and b<=13)}
+} {508}
+do_test randexpr-2.2364 {
+  db eval {SELECT t1.a+d & +case when +t1.a-t1.f++t1.c+(select case ~count(*) when (+cast(avg(f*t1.f) AS integer) & min(t1.b)) then  -(cast(avg(t1.f) AS integer)) else min(e) end from t1)-b* - -13-f+c in (select b from t1 union select t1.d from t1) or e<e then b & 13 else t1.c end FROM t1 WHERE NOT (coalesce((select max(coalesce((select  -e*a from t1 where (select max(case t1.a when b then d else 17 end) from t1) in (select 17 from t1 union select  -case when exists(select 1 from t1 where coalesce((select t1.d from t1 where t1.a not between t1.d and 17 and 19=17),t1.c)-t1.e+b<=a) then 17 | c when  -e<=d then 13 else (b) end from t1)),e)) from t1 where t1.e not in (11, -t1.b,(f))),t1.c) not in ( -c,t1.d,t1.d) and b<=13)}
+} {292}
+do_test randexpr-2.2365 {
+  db eval {SELECT coalesce((select max((select (max((abs(coalesce((select max(+case when ~t1.d=t1.a then a when coalesce((select case when t1.c in (select 19 from t1 union select (d) from t1) then e else f end from t1 where t1.a<>t1.a),t1.f) between t1.a and 19 then ( -b) else t1.a end) from t1 where t1.c in (a,(f),e)),t1.c))/abs(a)))) from t1)) from t1 where case when exists(select 1 from t1 where e<11) and 17 in (select 11 from t1 union select a from t1) then d else (d) end in (select cast(avg(f) AS integer) from t1 union select count(*) from t1)),t1.d) FROM t1 WHERE exists(select 1 from t1 where b not between case 11 when d then (select + -(abs(abs(case  -min(d)+ - -count(*)-max(c) when count(*) then max(t1.b) else count(*) end))) from t1)+t1.f-f*t1.b*((select min(a) from t1))-b+f else t1.e end | t1.c+13 and 19) and b<t1.c or (17>t1.e)}
+} {400}
+do_test randexpr-2.2366 {
+  db eval {SELECT coalesce((select max((select (max((abs(coalesce((select max(+case when ~t1.d=t1.a then a when coalesce((select case when t1.c in (select 19 from t1 union select (d) from t1) then e else f end from t1 where t1.a<>t1.a),t1.f) between t1.a and 19 then ( -b) else t1.a end) from t1 where t1.c in (a,(f),e)),t1.c))/abs(a)))) from t1)) from t1 where case when exists(select 1 from t1 where e<11) and 17 in (select 11 from t1 union select a from t1) then d else (d) end in (select cast(avg(f) AS integer) from t1 union select count(*) from t1)),t1.d) FROM t1 WHERE NOT (exists(select 1 from t1 where b not between case 11 when d then (select + -(abs(abs(case  -min(d)+ - -count(*)-max(c) when count(*) then max(t1.b) else count(*) end))) from t1)+t1.f-f*t1.b*((select min(a) from t1))-b+f else t1.e end | t1.c+13 and 19) and b<t1.c or (17>t1.e))}
+} {}
+do_test randexpr-2.2367 {
+  db eval {SELECT case when t1.d+b+c | case +a-t1.d-f*(select cast(avg(17) AS integer)+count(distinct e)-count(distinct t1.a) |  - -cast(avg(t1.b) AS integer) from t1)+~t1.e-a when d then t1.f else d end+t1.e*b<>11 then f when t1.a=b or t1.b>(t1.d) then 19 else t1.f end+19 FROM t1 WHERE coalesce((select case t1.e-case coalesce((select (select min(t1.d) from t1) from t1 where coalesce((select max(coalesce((select max(a) from t1 where t1.d in (select cast(avg(t1.b) AS integer) from t1 union select count(distinct a) from t1)), -19)*t1.e) from t1 where d>11),t1.f)>17),t1.f) when (17) then e else d end when b then (19) else 19 end from t1 where not t1.f in (select ( -max(13)) from t1 union select max(c) from t1)),11)-d not in ( -19,13,d)}
+} {619}
+do_test randexpr-2.2368 {
+  db eval {SELECT case when t1.d+b+c | case +a-t1.d-f*(select cast(avg(17) AS integer)+count(distinct e)-count(distinct t1.a) |  - -cast(avg(t1.b) AS integer) from t1)+~t1.e-a when d then t1.f else d end+t1.e*b<>11 then f when t1.a=b or t1.b>(t1.d) then 19 else t1.f end+19 FROM t1 WHERE NOT (coalesce((select case t1.e-case coalesce((select (select min(t1.d) from t1) from t1 where coalesce((select max(coalesce((select max(a) from t1 where t1.d in (select cast(avg(t1.b) AS integer) from t1 union select count(distinct a) from t1)), -19)*t1.e) from t1 where d>11),t1.f)>17),t1.f) when (17) then e else d end when b then (19) else 19 end from t1 where not t1.f in (select ( -max(13)) from t1 union select max(c) from t1)),11)-d not in ( -19,13,d))}
+} {}
+do_test randexpr-2.2369 {
+  db eval {SELECT case when t1.d+b+c & case +a-t1.d-f*(select cast(avg(17) AS integer)+count(distinct e)-count(distinct t1.a) &  - -cast(avg(t1.b) AS integer) from t1)+~t1.e-a when d then t1.f else d end+t1.e*b<>11 then f when t1.a=b or t1.b>(t1.d) then 19 else t1.f end+19 FROM t1 WHERE coalesce((select case t1.e-case coalesce((select (select min(t1.d) from t1) from t1 where coalesce((select max(coalesce((select max(a) from t1 where t1.d in (select cast(avg(t1.b) AS integer) from t1 union select count(distinct a) from t1)), -19)*t1.e) from t1 where d>11),t1.f)>17),t1.f) when (17) then e else d end when b then (19) else 19 end from t1 where not t1.f in (select ( -max(13)) from t1 union select max(c) from t1)),11)-d not in ( -19,13,d)}
+} {619}
+do_test randexpr-2.2370 {
+  db eval {SELECT case when (t1.a not in (coalesce((select 17 from t1 where case when t1.b*(abs( -t1.b*f*coalesce((select 17 from t1 where not t1.d<t1.d),t1.b)*t1.a+19* -17)/abs(b))<=b then t1.b else 13 end+t1.d not between t1.b and  - -11),d),11,t1.e) or a<=19) or t1.e not between t1.c and 13 then 13 else e end FROM t1 WHERE t1.f+(abs(f)/abs((abs(t1.e+19)/abs(t1.c))*t1.d)) in (e*11,(select count(*) from t1),t1.e)}
+} {}
+do_test randexpr-2.2371 {
+  db eval {SELECT case when (t1.a not in (coalesce((select 17 from t1 where case when t1.b*(abs( -t1.b*f*coalesce((select 17 from t1 where not t1.d<t1.d),t1.b)*t1.a+19* -17)/abs(b))<=b then t1.b else 13 end+t1.d not between t1.b and  - -11),d),11,t1.e) or a<=19) or t1.e not between t1.c and 13 then 13 else e end FROM t1 WHERE NOT (t1.f+(abs(f)/abs((abs(t1.e+19)/abs(t1.c))*t1.d)) in (e*11,(select count(*) from t1),t1.e))}
+} {13}
+do_test randexpr-2.2372 {
+  db eval {SELECT case when case when (case (t1.a)*case when c<f and t1.e<>t1.d then 13 when c>b then c else 11 end when e then a else t1.e end>c) or 19 in (select ++min(f) from t1 union select  -count(distinct t1.a) from t1) then (case when t1.f in (select t1.f from t1 union select  -t1.a from t1) then c when b not between t1.a and b then  -t1.c else t1.a end) else t1.c end not in (f,a,17) then 11 else 11 end FROM t1 WHERE not c not between (select abs(max(~(19*e-t1.a*c*t1.d))*~abs((abs(min(a)-min(c) | cast(avg(19) AS integer))) | count(distinct 19)) | (cast(avg(d) AS integer))) from t1) and (abs(case coalesce((select max(19) from t1 where b not between a and f or 19 in (t1.c,t1.c,b)),t1.e) when c then f else 11 end)/abs(c))}
+} {}
+do_test randexpr-2.2373 {
+  db eval {SELECT case when case when (case (t1.a)*case when c<f and t1.e<>t1.d then 13 when c>b then c else 11 end when e then a else t1.e end>c) or 19 in (select ++min(f) from t1 union select  -count(distinct t1.a) from t1) then (case when t1.f in (select t1.f from t1 union select  -t1.a from t1) then c when b not between t1.a and b then  -t1.c else t1.a end) else t1.c end not in (f,a,17) then 11 else 11 end FROM t1 WHERE NOT (not c not between (select abs(max(~(19*e-t1.a*c*t1.d))*~abs((abs(min(a)-min(c) | cast(avg(19) AS integer))) | count(distinct 19)) | (cast(avg(d) AS integer))) from t1) and (abs(case coalesce((select max(19) from t1 where b not between a and f or 19 in (t1.c,t1.c,b)),t1.e) when c then f else 11 end)/abs(c)))}
+} {11}
+do_test randexpr-2.2374 {
+  db eval {SELECT (select count(*)-+ -(max(~coalesce((select ~b from t1 where not t1.c | 19 not between c+t1.c and d),a)*(abs(t1.a)/abs(d*(case t1.a*case when 17>e then 11 else 13 end when 19 then e else t1.d end)))+17))-cast(avg(c) AS integer) | count(distinct f) from t1)+(select abs(min(11)) from t1) FROM t1 WHERE coalesce((select max(11) from t1 where case when b<=13-~case when ~~(select count(*)+count(*)* -count(*) from t1)>17*17 then t1.f+case when not case when 19 in (t1.e,a,19) then 17 when f<=19 then 17 else  -d end=19 then f when a>=19 then d else f end else t1.c end | f then 19 else b end*t1.d between e and b),f)<c}
+} {}
+do_test randexpr-2.2375 {
+  db eval {SELECT (select count(*)-+ -(max(~coalesce((select ~b from t1 where not t1.c | 19 not between c+t1.c and d),a)*(abs(t1.a)/abs(d*(case t1.a*case when 17>e then 11 else 13 end when 19 then e else t1.d end)))+17))-cast(avg(c) AS integer) | count(distinct f) from t1)+(select abs(min(11)) from t1) FROM t1 WHERE NOT (coalesce((select max(11) from t1 where case when b<=13-~case when ~~(select count(*)+count(*)* -count(*) from t1)>17*17 then t1.f+case when not case when 19 in (t1.e,a,19) then 17 when f<=19 then 17 else  -d end=19 then f when a>=19 then d else f end else t1.c end | f then 19 else b end*t1.d between e and b),f)<c)}
+} {-270}
+do_test randexpr-2.2376 {
+  db eval {SELECT (select count(*)-+ -(max(~coalesce((select ~b from t1 where not t1.c & 19 not between c+t1.c and d),a)*(abs(t1.a)/abs(d*(case t1.a*case when 17>e then 11 else 13 end when 19 then e else t1.d end)))+17))-cast(avg(c) AS integer) & count(distinct f) from t1)+(select abs(min(11)) from t1) FROM t1 WHERE NOT (coalesce((select max(11) from t1 where case when b<=13-~case when ~~(select count(*)+count(*)* -count(*) from t1)>17*17 then t1.f+case when not case when 19 in (t1.e,a,19) then 17 when f<=19 then 17 else  -d end=19 then f when a>=19 then d else f end else t1.c end | f then 19 else b end*t1.d between e and b),f)<c)}
+} {11}
+do_test randexpr-2.2377 {
+  db eval {SELECT case when ((select max((t1.e+19 | (abs((select case ++cast(avg(b-coalesce((select t1.c from t1 where t1.e not in (t1.a, -e,e)),c)) AS integer) when count(distinct t1.b) then count(distinct  -t1.a) |  - -count(distinct t1.b) else count(*) end*( -(min(11)))+(min(t1.f))-(count(*)) from t1))/abs(b+t1.b+t1.d | t1.e-19+t1.a))*t1.c)) from t1))>19 then 11 else 17 end-t1.d FROM t1 WHERE (select min(a) from t1)<t1.e}
+} {-389}
+do_test randexpr-2.2378 {
+  db eval {SELECT case when ((select max((t1.e+19 | (abs((select case ++cast(avg(b-coalesce((select t1.c from t1 where t1.e not in (t1.a, -e,e)),c)) AS integer) when count(distinct t1.b) then count(distinct  -t1.a) |  - -count(distinct t1.b) else count(*) end*( -(min(11)))+(min(t1.f))-(count(*)) from t1))/abs(b+t1.b+t1.d | t1.e-19+t1.a))*t1.c)) from t1))>19 then 11 else 17 end-t1.d FROM t1 WHERE NOT ((select min(a) from t1)<t1.e)}
+} {}
+do_test randexpr-2.2379 {
+  db eval {SELECT case when ((select max((t1.e+19 & (abs((select case ++cast(avg(b-coalesce((select t1.c from t1 where t1.e not in (t1.a, -e,e)),c)) AS integer) when count(distinct t1.b) then count(distinct  -t1.a) &  - -count(distinct t1.b) else count(*) end*( -(min(11)))+(min(t1.f))-(count(*)) from t1))/abs(b+t1.b+t1.d & t1.e-19+t1.a))*t1.c)) from t1))>19 then 11 else 17 end-t1.d FROM t1 WHERE (select min(a) from t1)<t1.e}
+} {-383}
+do_test randexpr-2.2380 {
+  db eval {SELECT t1.d*11-case 11 when a then 11 else  - -t1.b-(t1.b)+c+t1.a* -case when not exists(select 1 from t1 where coalesce((select t1.c from t1 where t1.c=case when 13 in (coalesce((select max(coalesce((select max(t1.c) from t1 where c between t1.d and t1.f and t1.a<=b),e)) from t1 where (11 not in (b,19,c))),b),e, -b) then 17 when t1.a in (b,t1.d,b) and t1.f>c then t1.a else (d) end),d)<= -t1.c) then t1.e*t1.c else 13 end end FROM t1 WHERE exists(select 1 from t1 where ((b not between f and t1.a)))}
+} {15004100}
+do_test randexpr-2.2381 {
+  db eval {SELECT t1.d*11-case 11 when a then 11 else  - -t1.b-(t1.b)+c+t1.a* -case when not exists(select 1 from t1 where coalesce((select t1.c from t1 where t1.c=case when 13 in (coalesce((select max(coalesce((select max(t1.c) from t1 where c between t1.d and t1.f and t1.a<=b),e)) from t1 where (11 not in (b,19,c))),b),e, -b) then 17 when t1.a in (b,t1.d,b) and t1.f>c then t1.a else (d) end),d)<= -t1.c) then t1.e*t1.c else 13 end end FROM t1 WHERE NOT (exists(select 1 from t1 where ((b not between f and t1.a))))}
+} {}
+do_test randexpr-2.2382 {
+  db eval {SELECT t1.c*case when not b>(+coalesce((select t1.e from t1 where t1.b>(abs(case when t1.d<=c+ -17*t1.f*19*17 then 11+a-13-t1.d else case (select abs(count(distinct 19))+ -count(distinct 17) from t1) when 17*t1.d then a else t1.a end end)/abs(17))),(11)))+17 then (t1.c)*f else 17 end FROM t1 WHERE (t1.b)-b<=t1.a*13}
+} {54000000}
+do_test randexpr-2.2383 {
+  db eval {SELECT t1.c*case when not b>(+coalesce((select t1.e from t1 where t1.b>(abs(case when t1.d<=c+ -17*t1.f*19*17 then 11+a-13-t1.d else case (select abs(count(distinct 19))+ -count(distinct 17) from t1) when 17*t1.d then a else t1.a end end)/abs(17))),(11)))+17 then (t1.c)*f else 17 end FROM t1 WHERE NOT ((t1.b)-b<=t1.a*13)}
+} {}
+do_test randexpr-2.2384 {
+  db eval {SELECT t1.b+coalesce((select max(~e- -t1.d+case +b+f when a-case when t1.a-d+t1.c between t1.e and a*e then (abs(e)/abs(t1.a)) else f |  -f*t1.b-t1.c end*t1.e+f then 19 else t1.b end*19) from t1 where 19 in (select e from t1 union select 17 from t1)),19) FROM t1 WHERE d in (11,t1.c+c*t1.d+case when t1.c-case when ~(19+13)*c=11 and d<>17 or t1.e>=c then case t1.a when c then f else 11 end+t1.c when t1.f in (select max(13) from t1 union select cast(avg(c) AS integer) from t1) or t1.c<t1.b then 13 else b end=13 then 11 when d<>t1.b then t1.e else 19 end,a)}
+} {}
+do_test randexpr-2.2385 {
+  db eval {SELECT t1.b+coalesce((select max(~e- -t1.d+case +b+f when a-case when t1.a-d+t1.c between t1.e and a*e then (abs(e)/abs(t1.a)) else f |  -f*t1.b-t1.c end*t1.e+f then 19 else t1.b end*19) from t1 where 19 in (select e from t1 union select 17 from t1)),19) FROM t1 WHERE NOT (d in (11,t1.c+c*t1.d+case when t1.c-case when ~(19+13)*c=11 and d<>17 or t1.e>=c then case t1.a when c then f else 11 end+t1.c when t1.f in (select max(13) from t1 union select cast(avg(c) AS integer) from t1) or t1.c<t1.b then 13 else b end=13 then 11 when d<>t1.b then t1.e else 19 end,a))}
+} {219}
+do_test randexpr-2.2386 {
+  db eval {SELECT t1.b+coalesce((select max(~e- -t1.d+case +b+f when a-case when t1.a-d+t1.c between t1.e and a*e then (abs(e)/abs(t1.a)) else f &  -f*t1.b-t1.c end*t1.e+f then 19 else t1.b end*19) from t1 where 19 in (select e from t1 union select 17 from t1)),19) FROM t1 WHERE NOT (d in (11,t1.c+c*t1.d+case when t1.c-case when ~(19+13)*c=11 and d<>17 or t1.e>=c then case t1.a when c then f else 11 end+t1.c when t1.f in (select max(13) from t1 union select cast(avg(c) AS integer) from t1) or t1.c<t1.b then 13 else b end=13 then 11 when d<>t1.b then t1.e else 19 end,a))}
+} {219}
+do_test randexpr-2.2387 {
+  db eval {SELECT (abs((select (case (abs(max( -t1.a))* -case count(*) when case min(c) when max(d) then count(*) else max(17) end-cast(avg(17) AS integer) then max(11) else cast(avg(t1.d) AS integer) end | max(13)+max(f)) when cast(avg(f) AS integer) then cast(avg(19) AS integer) else (max(11)) end) from t1) | coalesce((select (select max( -t1.d) from t1) from t1 where t1.b-~e in (select d from t1 union select e from t1) and t1.e=t1.d), -t1.e)-17)/abs(t1.e)) |  -t1.e FROM t1 WHERE exists(select 1 from t1 where coalesce((select +19 from t1 where (coalesce((select max(e) from t1 where ((coalesce((select max(19) from t1 where coalesce((select t1.d*19+(t1.c) from t1 where e in (select  -11 from t1 union select t1.f from t1) and (t1.d) in (select ~max(t1.e) from t1 union select (( -count(*))) from t1) or 19>=(a)),f) in ((e),e,t1.a)),t1.a)<=t1.c))),t1.f+t1.c)>13)),11) in (11,17,t1.d) and e>=t1.b)}
+} {}
+do_test randexpr-2.2388 {
+  db eval {SELECT (abs((select (case (abs(max( -t1.a))* -case count(*) when case min(c) when max(d) then count(*) else max(17) end-cast(avg(17) AS integer) then max(11) else cast(avg(t1.d) AS integer) end | max(13)+max(f)) when cast(avg(f) AS integer) then cast(avg(19) AS integer) else (max(11)) end) from t1) | coalesce((select (select max( -t1.d) from t1) from t1 where t1.b-~e in (select d from t1 union select e from t1) and t1.e=t1.d), -t1.e)-17)/abs(t1.e)) |  -t1.e FROM t1 WHERE NOT (exists(select 1 from t1 where coalesce((select +19 from t1 where (coalesce((select max(e) from t1 where ((coalesce((select max(19) from t1 where coalesce((select t1.d*19+(t1.c) from t1 where e in (select  -11 from t1 union select t1.f from t1) and (t1.d) in (select ~max(t1.e) from t1 union select (( -count(*))) from t1) or 19>=(a)),f) in ((e),e,t1.a)),t1.a)<=t1.c))),t1.f+t1.c)>13)),11) in (11,17,t1.d) and e>=t1.b))}
+} {-499}
+do_test randexpr-2.2389 {
+  db eval {SELECT (abs((select (case (abs(max( -t1.a))* -case count(*) when case min(c) when max(d) then count(*) else max(17) end-cast(avg(17) AS integer) then max(11) else cast(avg(t1.d) AS integer) end & max(13)+max(f)) when cast(avg(f) AS integer) then cast(avg(19) AS integer) else (max(11)) end) from t1) & coalesce((select (select max( -t1.d) from t1) from t1 where t1.b-~e in (select d from t1 union select e from t1) and t1.e=t1.d), -t1.e)-17)/abs(t1.e)) &  -t1.e FROM t1 WHERE NOT (exists(select 1 from t1 where coalesce((select +19 from t1 where (coalesce((select max(e) from t1 where ((coalesce((select max(19) from t1 where coalesce((select t1.d*19+(t1.c) from t1 where e in (select  -11 from t1 union select t1.f from t1) and (t1.d) in (select ~max(t1.e) from t1 union select (( -count(*))) from t1) or 19>=(a)),f) in ((e),e,t1.a)),t1.a)<=t1.c))),t1.f+t1.c)>13)),11) in (11,17,t1.d) and e>=t1.b))}
+} {0}
+do_test randexpr-2.2390 {
+  db eval {SELECT f-coalesce((select 19+t1.e+t1.f from t1 where +11>coalesce((select +t1.f from t1 where t1.a between ~ -(select case cast(avg((abs(t1.d)/abs(t1.b))) AS integer) when  -~max(19) then  - -case count(distinct c) when count(*) then min((a)) else  -min(t1.d) end else max( -t1.b) end from t1) and (select count(distinct f) from t1)),(coalesce((select max(t1.e) from t1 where not 11>=d),t1.c)))),19)-t1.f+19+f*t1.d FROM t1 WHERE f in (select (min((abs(d-t1.c+coalesce((select t1.f from t1 where f<t1.a),t1.c)+a-t1.d*(f)-19)/abs(11))) | abs((count(*))))+(abs(~case count(*) | max(t1.a) when max(t1.d) then count(distinct 19) else count(distinct e) end)+cast(avg((t1.e)) AS integer))+max(t1.c) from t1 union select count(*) from t1) and c*t1.a in (select e from t1 union select f from t1)}
+} {}
+do_test randexpr-2.2391 {
+  db eval {SELECT f-coalesce((select 19+t1.e+t1.f from t1 where +11>coalesce((select +t1.f from t1 where t1.a between ~ -(select case cast(avg((abs(t1.d)/abs(t1.b))) AS integer) when  -~max(19) then  - -case count(distinct c) when count(*) then min((a)) else  -min(t1.d) end else max( -t1.b) end from t1) and (select count(distinct f) from t1)),(coalesce((select max(t1.e) from t1 where not 11>=d),t1.c)))),19)-t1.f+19+f*t1.d FROM t1 WHERE NOT (f in (select (min((abs(d-t1.c+coalesce((select t1.f from t1 where f<t1.a),t1.c)+a-t1.d*(f)-19)/abs(11))) | abs((count(*))))+(abs(~case count(*) | max(t1.a) when max(t1.d) then count(distinct 19) else count(distinct e) end)+cast(avg((t1.e)) AS integer))+max(t1.c) from t1 union select count(*) from t1) and c*t1.a in (select e from t1 union select f from t1))}
+} {240000}
+do_test randexpr-2.2392 {
+  db eval {SELECT t1.b-case when b not between 17 and t1.d*11*f*t1.a or t1.c+case when  -t1.e between t1.d and coalesce((select coalesce((select max((select ~count(*) from t1)) from t1 where  -17*13-19-((d))<>(c)), -a) from t1 where (e)<=t1.a),d) then d when e<t1.f then 19 else e end>=a then t1.f else f end FROM t1 WHERE f in (13*13-(abs(d)/abs(e)),19,case t1.b+coalesce((select max((abs((abs(17)/abs(a)))/abs(11+t1.c))) from t1 where  -t1.c>=t1.f and e in (select count(*) | min(t1.c) from t1 union select cast(avg(e) AS integer) from t1) or 11 not in (e,b,a) or t1.c< -a and t1.e not in (t1.e,b,t1.d)),t1.b) when f then 19 else b end-11) or d>t1.b}
+} {-400}
+do_test randexpr-2.2393 {
+  db eval {SELECT t1.b-case when b not between 17 and t1.d*11*f*t1.a or t1.c+case when  -t1.e between t1.d and coalesce((select coalesce((select max((select ~count(*) from t1)) from t1 where  -17*13-19-((d))<>(c)), -a) from t1 where (e)<=t1.a),d) then d when e<t1.f then 19 else e end>=a then t1.f else f end FROM t1 WHERE NOT (f in (13*13-(abs(d)/abs(e)),19,case t1.b+coalesce((select max((abs((abs(17)/abs(a)))/abs(11+t1.c))) from t1 where  -t1.c>=t1.f and e in (select count(*) | min(t1.c) from t1 union select cast(avg(e) AS integer) from t1) or 11 not in (e,b,a) or t1.c< -a and t1.e not in (t1.e,b,t1.d)),t1.b) when f then 19 else b end-11) or d>t1.b)}
+} {}
+do_test randexpr-2.2394 {
+  db eval {SELECT case t1.d when (abs(17)/abs(coalesce((select max(e) from t1 where a not in (t1.e,case when 11+t1.d not between t1.e and  -t1.c | t1.a*(abs(b)/abs(c)) then  -d when a in (select +11 from t1 union select c from t1) then  -t1.c else 13 end | t1.c,t1.b)),d)-f)) | t1.c then case when 13<c then t1.b when d<>t1.d then 13 else f end else b end FROM t1 WHERE 17>d*~t1.e+case when not t1.f<>(select count(distinct 19)+min(e) from t1) then case when (13-a<= -t1.b) and t1.f<=t1.f then 19*d else f end-t1.f*d+t1.d when b not in (t1.b,19,19) or t1.d not between t1.b and a then t1.f else b end}
+} {200}
+do_test randexpr-2.2395 {
+  db eval {SELECT case t1.d when (abs(17)/abs(coalesce((select max(e) from t1 where a not in (t1.e,case when 11+t1.d not between t1.e and  -t1.c | t1.a*(abs(b)/abs(c)) then  -d when a in (select +11 from t1 union select c from t1) then  -t1.c else 13 end | t1.c,t1.b)),d)-f)) | t1.c then case when 13<c then t1.b when d<>t1.d then 13 else f end else b end FROM t1 WHERE NOT (17>d*~t1.e+case when not t1.f<>(select count(distinct 19)+min(e) from t1) then case when (13-a<= -t1.b) and t1.f<=t1.f then 19*d else f end-t1.f*d+t1.d when b not in (t1.b,19,19) or t1.d not between t1.b and a then t1.f else b end)}
+} {}
+do_test randexpr-2.2396 {
+  db eval {SELECT case t1.d when (abs(17)/abs(coalesce((select max(e) from t1 where a not in (t1.e,case when 11+t1.d not between t1.e and  -t1.c & t1.a*(abs(b)/abs(c)) then  -d when a in (select +11 from t1 union select c from t1) then  -t1.c else 13 end & t1.c,t1.b)),d)-f)) & t1.c then case when 13<c then t1.b when d<>t1.d then 13 else f end else b end FROM t1 WHERE 17>d*~t1.e+case when not t1.f<>(select count(distinct 19)+min(e) from t1) then case when (13-a<= -t1.b) and t1.f<=t1.f then 19*d else f end-t1.f*d+t1.d when b not in (t1.b,19,19) or t1.d not between t1.b and a then t1.f else b end}
+} {200}
+do_test randexpr-2.2397 {
+  db eval {SELECT coalesce((select max(d) from t1 where coalesce((select t1.c from t1 where 17>b),d*coalesce((select max(11*19) from t1 where coalesce((select c from t1 where 19<(abs((case a when b then ~case t1.a+(select min(t1.f)+min(b) from t1) when (d) then e else t1.b end else t1.c end+f+t1.f))/abs(t1.b))),c)<=19),13))*d | e<e),t1.e) FROM t1 WHERE (t1.d*t1.c not in (t1.b,t1.b*t1.f,t1.c))}
+} {}
+do_test randexpr-2.2398 {
+  db eval {SELECT coalesce((select max(d) from t1 where coalesce((select t1.c from t1 where 17>b),d*coalesce((select max(11*19) from t1 where coalesce((select c from t1 where 19<(abs((case a when b then ~case t1.a+(select min(t1.f)+min(b) from t1) when (d) then e else t1.b end else t1.c end+f+t1.f))/abs(t1.b))),c)<=19),13))*d | e<e),t1.e) FROM t1 WHERE NOT ((t1.d*t1.c not in (t1.b,t1.b*t1.f,t1.c)))}
+} {500}
+do_test randexpr-2.2399 {
+  db eval {SELECT coalesce((select max(d) from t1 where coalesce((select t1.c from t1 where 17>b),d*coalesce((select max(11*19) from t1 where coalesce((select c from t1 where 19<(abs((case a when b then ~case t1.a+(select min(t1.f)+min(b) from t1) when (d) then e else t1.b end else t1.c end+f+t1.f))/abs(t1.b))),c)<=19),13))*d & e<e),t1.e) FROM t1 WHERE NOT ((t1.d*t1.c not in (t1.b,t1.b*t1.f,t1.c)))}
+} {400}
+do_test randexpr-2.2400 {
+  db eval {SELECT t1.b+ -t1.d*(select max(t1.a) | count(*) | abs(cast(avg(f+a-(select ~(min((abs(a)/abs(13+case when f=coalesce((select t1.b from t1 where d<>t1.e and 11 in (t1.e,t1.e,d)),f)+13 then t1.b else c end))- -f)) from t1)) AS integer))-count(distinct 11+11+13)+count(distinct t1.a) from t1) FROM t1 WHERE t1.d<c+t1.c | (select max((t1.e)) from t1)+case when t1.f-t1.d<a then t1.c-(abs(c)/abs(b*t1.c)) when case when not  -c>=b then t1.c when  -f*e<=t1.b then e else 17 end not between 17 and t1.f then t1.c else t1.b end-19+f+19*(t1.c)}
+} {-558600}
+do_test randexpr-2.2401 {
+  db eval {SELECT t1.b+ -t1.d*(select max(t1.a) | count(*) | abs(cast(avg(f+a-(select ~(min((abs(a)/abs(13+case when f=coalesce((select t1.b from t1 where d<>t1.e and 11 in (t1.e,t1.e,d)),f)+13 then t1.b else c end))- -f)) from t1)) AS integer))-count(distinct 11+11+13)+count(distinct t1.a) from t1) FROM t1 WHERE NOT (t1.d<c+t1.c | (select max((t1.e)) from t1)+case when t1.f-t1.d<a then t1.c-(abs(c)/abs(b*t1.c)) when case when not  -c>=b then t1.c when  -f*e<=t1.b then e else 17 end not between 17 and t1.f then t1.c else t1.b end-19+f+19*(t1.c))}
+} {}
+do_test randexpr-2.2402 {
+  db eval {SELECT t1.b+ -t1.d*(select max(t1.a) & count(*) & abs(cast(avg(f+a-(select ~(min((abs(a)/abs(13+case when f=coalesce((select t1.b from t1 where d<>t1.e and 11 in (t1.e,t1.e,d)),f)+13 then t1.b else c end))- -f)) from t1)) AS integer))-count(distinct 11+11+13)+count(distinct t1.a) from t1) FROM t1 WHERE t1.d<c+t1.c | (select max((t1.e)) from t1)+case when t1.f-t1.d<a then t1.c-(abs(c)/abs(b*t1.c)) when case when not  -c>=b then t1.c when  -f*e<=t1.b then e else 17 end not between 17 and t1.f then t1.c else t1.b end-19+f+19*(t1.c)}
+} {200}
+do_test randexpr-2.2403 {
+  db eval {SELECT case when case when t1.e<~17 or (case case case t1.d*17*13 when t1.a then e+c else c end when d*f+coalesce((select 17 from t1 where 13 not between 13 and  -13),(17)) then t1.b else b end when t1.a then a else t1.c end*d<>d) then ~t1.c else a end<>t1.f then  -t1.d else t1.a end+11-t1.c-e FROM t1 WHERE (case when (~f- -e in (17,case when d in (select t1.f from t1 union select a+(abs(coalesce((select (t1.c) from t1 where a in (select min(13) | (max(t1.e)) from t1 union select count(distinct t1.d) from t1)),b)+13)/abs(e))*19*f from t1) then b when not a between 13 and 13 then t1.f else 17 end,t1.c)) then (select max(t1.e)-count(*) | count(*) from t1) else c end)>(t1.e)}
+} {}
+do_test randexpr-2.2404 {
+  db eval {SELECT case when case when t1.e<~17 or (case case case t1.d*17*13 when t1.a then e+c else c end when d*f+coalesce((select 17 from t1 where 13 not between 13 and  -13),(17)) then t1.b else b end when t1.a then a else t1.c end*d<>d) then ~t1.c else a end<>t1.f then  -t1.d else t1.a end+11-t1.c-e FROM t1 WHERE NOT ((case when (~f- -e in (17,case when d in (select t1.f from t1 union select a+(abs(coalesce((select (t1.c) from t1 where a in (select min(13) | (max(t1.e)) from t1 union select count(distinct t1.d) from t1)),b)+13)/abs(e))*19*f from t1) then b when not a between 13 and 13 then t1.f else 17 end,t1.c)) then (select max(t1.e)-count(*) | count(*) from t1) else c end)>(t1.e))}
+} {-1189}
+do_test randexpr-2.2405 {
+  db eval {SELECT coalesce((select max(t1.a-(abs(e*coalesce((select max(d) from t1 where (case when case e when case when (t1.e)=d then t1.a+11 else 17 end then (c) else b end<=a then b when 19 in (t1.b,b,t1.e) then f else  -19 end+17 between 19 and c or b in (select t1.c from t1 union select t1.a from t1))),t1.a))/abs( -t1.d))) from t1 where 13=17),t1.b)+(t1.b) FROM t1 WHERE coalesce((select  -case when (d)>=(select ~case +(+~~cast(avg(a) AS integer)*abs(( -count(*))) | count(distinct 11)) when (count(*)) then count(distinct 19) else min(t1.a) end+min(t1.a) from t1)*13-t1.f then 13 else (e) | t1.c*(select (min(17)) from t1) end*case when (c) in (select 11 from t1 union select t1.f from t1) then 17 else 19 end from t1 where t1.c<t1.f),19)*19<>c}
+} {400}
+do_test randexpr-2.2406 {
+  db eval {SELECT coalesce((select max(t1.a-(abs(e*coalesce((select max(d) from t1 where (case when case e when case when (t1.e)=d then t1.a+11 else 17 end then (c) else b end<=a then b when 19 in (t1.b,b,t1.e) then f else  -19 end+17 between 19 and c or b in (select t1.c from t1 union select t1.a from t1))),t1.a))/abs( -t1.d))) from t1 where 13=17),t1.b)+(t1.b) FROM t1 WHERE NOT (coalesce((select  -case when (d)>=(select ~case +(+~~cast(avg(a) AS integer)*abs(( -count(*))) | count(distinct 11)) when (count(*)) then count(distinct 19) else min(t1.a) end+min(t1.a) from t1)*13-t1.f then 13 else (e) | t1.c*(select (min(17)) from t1) end*case when (c) in (select 11 from t1 union select t1.f from t1) then 17 else 19 end from t1 where t1.c<t1.f),19)*19<>c)}
+} {}
+do_test randexpr-2.2407 {
+  db eval {SELECT t1.b-t1.d-case when exists(select 1 from t1 where  -coalesce((select t1.a from t1 where a in (c,coalesce((select max((abs(t1.d)/abs(e))) from t1 where case t1.b when t1.e then t1.d else t1.d end-17 between b and t1.f),17)-t1.f-t1.e,t1.a) or t1.b in (t1.a,19,t1.f)),19)>=d) then 19-b when t1.c between (f) and t1.f then t1.d else t1.f end-11 FROM t1 WHERE coalesce((select 13 from t1 where ( -t1.a<d)),(abs(t1.d)/abs(case when ( -11)+f+d+ -17+f*e not between t1.b and  -11 and not t1.a<>13 or a in (select cast(avg(d) AS integer) | count(*)* -max(t1.f) from t1 union select count(*) from t1) then 17 when not exists(select 1 from t1 where b>=c) then e else 17 end |  -t1.a))*b)*t1.d>=b}
+} {-811}
+do_test randexpr-2.2408 {
+  db eval {SELECT t1.b-t1.d-case when exists(select 1 from t1 where  -coalesce((select t1.a from t1 where a in (c,coalesce((select max((abs(t1.d)/abs(e))) from t1 where case t1.b when t1.e then t1.d else t1.d end-17 between b and t1.f),17)-t1.f-t1.e,t1.a) or t1.b in (t1.a,19,t1.f)),19)>=d) then 19-b when t1.c between (f) and t1.f then t1.d else t1.f end-11 FROM t1 WHERE NOT (coalesce((select 13 from t1 where ( -t1.a<d)),(abs(t1.d)/abs(case when ( -11)+f+d+ -17+f*e not between t1.b and  -11 and not t1.a<>13 or a in (select cast(avg(d) AS integer) | count(*)* -max(t1.f) from t1 union select count(*) from t1) then 17 when not exists(select 1 from t1 where b>=c) then e else 17 end |  -t1.a))*b)*t1.d>=b)}
+} {}
+do_test randexpr-2.2409 {
+  db eval {SELECT 17 | t1.c*t1.a | case when ~ -~(abs(t1.b)/abs(coalesce((select max(coalesce((select max(+t1.d) from t1 where (t1.b not between 17 and t1.b) and d not between c and 19),d)*(t1.d)-d) from t1 where t1.a in (t1.c,(t1.c),t1.f)),19)))-b+19+ -17>=t1.a then 19 when 19 in (select t1.f from t1 union select t1.b from t1) then t1.c else f end-19*t1.c FROM t1 WHERE (17-t1.f in (d | b-17,t1.f,coalesce((select e+(abs(11)/abs(case t1.c when case (abs(a)/abs(11)) when e then t1.c else 17+c end then b else 11+t1.e end)) from t1 where (13 not between + -b and 13)),t1.c)) and 17 between t1.d | t1.f and t1.e)}
+} {}
+do_test randexpr-2.2410 {
+  db eval {SELECT 17 | t1.c*t1.a | case when ~ -~(abs(t1.b)/abs(coalesce((select max(coalesce((select max(+t1.d) from t1 where (t1.b not between 17 and t1.b) and d not between c and 19),d)*(t1.d)-d) from t1 where t1.a in (t1.c,(t1.c),t1.f)),19)))-b+19+ -17>=t1.a then 19 when 19 in (select t1.f from t1 union select t1.b from t1) then t1.c else f end-19*t1.c FROM t1 WHERE NOT ((17-t1.f in (d | b-17,t1.f,coalesce((select e+(abs(11)/abs(case t1.c when case (abs(a)/abs(11)) when e then t1.c else 17+c end then b else 11+t1.e end)) from t1 where (13 not between + -b and 13)),t1.c)) and 17 between t1.d | t1.f and t1.e))}
+} {-715}
+do_test randexpr-2.2411 {
+  db eval {SELECT 17 & t1.c*t1.a & case when ~ -~(abs(t1.b)/abs(coalesce((select max(coalesce((select max(+t1.d) from t1 where (t1.b not between 17 and t1.b) and d not between c and 19),d)*(t1.d)-d) from t1 where t1.a in (t1.c,(t1.c),t1.f)),19)))-b+19+ -17>=t1.a then 19 when 19 in (select t1.f from t1 union select t1.b from t1) then t1.c else f end-19*t1.c FROM t1 WHERE NOT ((17-t1.f in (d | b-17,t1.f,coalesce((select e+(abs(11)/abs(case t1.c when case (abs(a)/abs(11)) when e then t1.c else 17+c end then b else 11+t1.e end)) from t1 where (13 not between + -b and 13)),t1.c)) and 17 between t1.d | t1.f and t1.e))}
+} {16}
+do_test randexpr-2.2412 {
+  db eval {SELECT coalesce((select t1.a*a+t1.f | t1.d from t1 where t1.d<+t1.c*d-c*19+t1.e-(abs( -t1.e)/abs(19))), -t1.c+coalesce((select t1.b from t1 where not not (select max(t1.c) from t1)-17+e in (e,t1.c,b) and not (d in (select ( -((max(b)))) from t1 union select min(d) from t1))),t1.b) | t1.a) FROM t1 WHERE not t1.f in (select ((select abs(count(*)) from t1)-11) from t1 union select t1.a-17 from t1) or not exists(select 1 from t1 where case (abs(e)/abs(+c)) when coalesce((select max((select +(count(distinct t1.a)) from t1)) from t1 where not (e<=c*t1.a)),~(case when t1.c<=17 then e when t1.c<=t1.c then e else 17 end)) then 13 else d end*b-a= -d)}
+} {10744}
+do_test randexpr-2.2413 {
+  db eval {SELECT coalesce((select t1.a*a+t1.f | t1.d from t1 where t1.d<+t1.c*d-c*19+t1.e-(abs( -t1.e)/abs(19))), -t1.c+coalesce((select t1.b from t1 where not not (select max(t1.c) from t1)-17+e in (e,t1.c,b) and not (d in (select ( -((max(b)))) from t1 union select min(d) from t1))),t1.b) | t1.a) FROM t1 WHERE NOT (not t1.f in (select ((select abs(count(*)) from t1)-11) from t1 union select t1.a-17 from t1) or not exists(select 1 from t1 where case (abs(e)/abs(+c)) when coalesce((select max((select +(count(distinct t1.a)) from t1)) from t1 where not (e<=c*t1.a)),~(case when t1.c<=17 then e when t1.c<=t1.c then e else 17 end)) then 13 else d end*b-a= -d))}
+} {}
+do_test randexpr-2.2414 {
+  db eval {SELECT coalesce((select t1.a*a+t1.f & t1.d from t1 where t1.d<+t1.c*d-c*19+t1.e-(abs( -t1.e)/abs(19))), -t1.c+coalesce((select t1.b from t1 where not not (select max(t1.c) from t1)-17+e in (e,t1.c,b) and not (d in (select ( -((max(b)))) from t1 union select min(d) from t1))),t1.b) & t1.a) FROM t1 WHERE not t1.f in (select ((select abs(count(*)) from t1)-11) from t1 union select t1.a-17 from t1) or not exists(select 1 from t1 where case (abs(e)/abs(+c)) when coalesce((select max((select +(count(distinct t1.a)) from t1)) from t1 where not (e<=c*t1.a)),~(case when t1.c<=17 then e when t1.c<=t1.c then e else 17 end)) then 13 else d end*b-a= -d)}
+} {256}
+do_test randexpr-2.2415 {
+  db eval {SELECT case a+(abs(+13)/abs(a)) when ~(e)*(abs(b* -t1.d*19-t1.c+a-~t1.b*b-coalesce((select max(case when not exists(select 1 from t1 where d in (f,t1.c,f) or t1.c not in (13,f,t1.a)) then case when t1.a>= -t1.e then (( - -b)) else t1.b end else c end+e) from t1 where (a>11)),13)*17)/abs(e)) then 11 else c end FROM t1 WHERE 17 between a and t1.a}
+} {}
+do_test randexpr-2.2416 {
+  db eval {SELECT case a+(abs(+13)/abs(a)) when ~(e)*(abs(b* -t1.d*19-t1.c+a-~t1.b*b-coalesce((select max(case when not exists(select 1 from t1 where d in (f,t1.c,f) or t1.c not in (13,f,t1.a)) then case when t1.a>= -t1.e then (( - -b)) else t1.b end else c end+e) from t1 where (a>11)),13)*17)/abs(e)) then 11 else c end FROM t1 WHERE NOT (17 between a and t1.a)}
+} {300}
+do_test randexpr-2.2417 {
+  db eval {SELECT +~t1.f-c*case when t1.f between coalesce((select max(a) from t1 where (t1.c-17*t1.b | c=e)),t1.b) and (abs(coalesce((select max(19) from t1 where t1.b not between c+(select min(t1.d) from t1)-t1.d+d+t1.d+t1.c*t1.e and 11),t1.a))/abs(a))-c*b then 17 else 13 end FROM t1 WHERE t1.c not between (abs(+case when not  -19 in (case when t1.b+~d+11+f>e then (select  -cast(avg(coalesce((select 17 from t1 where (t1.b>=f)),19)) AS integer)*min(d)*(min(e))* -min(b) from t1) when 17+b not between 17 and t1.a then 11 else a end,19,(t1.e)) then f else 19 end*t1.a)/abs(b)) and 19}
+} {-4501}
+do_test randexpr-2.2418 {
+  db eval {SELECT +~t1.f-c*case when t1.f between coalesce((select max(a) from t1 where (t1.c-17*t1.b | c=e)),t1.b) and (abs(coalesce((select max(19) from t1 where t1.b not between c+(select min(t1.d) from t1)-t1.d+d+t1.d+t1.c*t1.e and 11),t1.a))/abs(a))-c*b then 17 else 13 end FROM t1 WHERE NOT (t1.c not between (abs(+case when not  -19 in (case when t1.b+~d+11+f>e then (select  -cast(avg(coalesce((select 17 from t1 where (t1.b>=f)),19)) AS integer)*min(d)*(min(e))* -min(b) from t1) when 17+b not between 17 and t1.a then 11 else a end,19,(t1.e)) then f else 19 end*t1.a)/abs(b)) and 19)}
+} {}
+do_test randexpr-2.2419 {
+  db eval {SELECT +~t1.f-c*case when t1.f between coalesce((select max(a) from t1 where (t1.c-17*t1.b & c=e)),t1.b) and (abs(coalesce((select max(19) from t1 where t1.b not between c+(select min(t1.d) from t1)-t1.d+d+t1.d+t1.c*t1.e and 11),t1.a))/abs(a))-c*b then 17 else 13 end FROM t1 WHERE t1.c not between (abs(+case when not  -19 in (case when t1.b+~d+11+f>e then (select  -cast(avg(coalesce((select 17 from t1 where (t1.b>=f)),19)) AS integer)*min(d)*(min(e))* -min(b) from t1) when 17+b not between 17 and t1.a then 11 else a end,19,(t1.e)) then f else 19 end*t1.a)/abs(b)) and 19}
+} {-4501}
+do_test randexpr-2.2420 {
+  db eval {SELECT +(abs(case t1.a when coalesce((select max(13) from t1 where d<=case when t1.b=(select abs(count(distinct t1.e)) from t1) and (select  -count(distinct e) from t1) not in ( -11,e,13) then 13 else t1.e end and (not exists(select 1 from t1 where t1.d in (select count(*) from t1 union select max(f) from t1))) and 19<f and t1.f>=13 or  -e=17),coalesce((select (abs(17)/abs(b))-t1.b from t1 where (19)<=t1.f),t1.d))*t1.b then 17 else 13 end)/abs(19)) FROM t1 WHERE a in (select case max(13)-~cast(avg(case when t1.d>13 or exists(select 1 from t1 where not (( -c<=e)) and (b)*t1.a in (select count(*) from t1 union select cast(avg(t1.c) AS integer)+max(f) from t1)) then t1.a else t1.c end) AS integer) when abs(count(distinct t1.d)) then count(distinct (~t1.a)) else count(distinct c)-cast(avg(e) AS integer) end from t1 union select abs(count(distinct a)*max(t1.d)) from t1)}
+} {}
+do_test randexpr-2.2421 {
+  db eval {SELECT +(abs(case t1.a when coalesce((select max(13) from t1 where d<=case when t1.b=(select abs(count(distinct t1.e)) from t1) and (select  -count(distinct e) from t1) not in ( -11,e,13) then 13 else t1.e end and (not exists(select 1 from t1 where t1.d in (select count(*) from t1 union select max(f) from t1))) and 19<f and t1.f>=13 or  -e=17),coalesce((select (abs(17)/abs(b))-t1.b from t1 where (19)<=t1.f),t1.d))*t1.b then 17 else 13 end)/abs(19)) FROM t1 WHERE NOT (a in (select case max(13)-~cast(avg(case when t1.d>13 or exists(select 1 from t1 where not (( -c<=e)) and (b)*t1.a in (select count(*) from t1 union select cast(avg(t1.c) AS integer)+max(f) from t1)) then t1.a else t1.c end) AS integer) when abs(count(distinct t1.d)) then count(distinct (~t1.a)) else count(distinct c)-cast(avg(e) AS integer) end from t1 union select abs(count(distinct a)*max(t1.d)) from t1))}
+} {0}
+do_test randexpr-2.2422 {
+  db eval {SELECT +coalesce((select max(f+c) from t1 where t1.b in (select +max(b+t1.b) from t1 union select cast(avg(d-b | f-11-t1.b | coalesce((select ~t1.a from t1 where (t1.a=case when not exists(select 1 from t1 where 13 not in (t1.b,t1.e,t1.f)) then (abs(t1.d)/abs(c)) when c<>17 then c else 19 end)),t1.c)) AS integer) from t1) and t1.e not in (b,d,(13))),t1.b) FROM t1 WHERE (select cast(avg(~t1.f) AS integer) from t1) not in ( -c,17,11*c)}
+} {200}
+do_test randexpr-2.2423 {
+  db eval {SELECT +coalesce((select max(f+c) from t1 where t1.b in (select +max(b+t1.b) from t1 union select cast(avg(d-b | f-11-t1.b | coalesce((select ~t1.a from t1 where (t1.a=case when not exists(select 1 from t1 where 13 not in (t1.b,t1.e,t1.f)) then (abs(t1.d)/abs(c)) when c<>17 then c else 19 end)),t1.c)) AS integer) from t1) and t1.e not in (b,d,(13))),t1.b) FROM t1 WHERE NOT ((select cast(avg(~t1.f) AS integer) from t1) not in ( -c,17,11*c))}
+} {}
+do_test randexpr-2.2424 {
+  db eval {SELECT +coalesce((select max(f+c) from t1 where t1.b in (select +max(b+t1.b) from t1 union select cast(avg(d-b & f-11-t1.b & coalesce((select ~t1.a from t1 where (t1.a=case when not exists(select 1 from t1 where 13 not in (t1.b,t1.e,t1.f)) then (abs(t1.d)/abs(c)) when c<>17 then c else 19 end)),t1.c)) AS integer) from t1) and t1.e not in (b,d,(13))),t1.b) FROM t1 WHERE (select cast(avg(~t1.f) AS integer) from t1) not in ( -c,17,11*c)}
+} {200}
+do_test randexpr-2.2425 {
+  db eval {SELECT t1.e*case when ((13)-13-13-t1.d+t1.c*b>11) then b when case when (t1.a*b not in (t1.a,t1.b,t1.f)) then 11+e else t1.f end<= -f or f in (t1.a,11,13) or exists(select 1 from t1 where not exists(select 1 from t1 where f in (f,d,t1.e))) then t1.d else b end FROM t1 WHERE coalesce((select 19 from t1 where 13-t1.b*c-t1.a+case when case when coalesce((select +t1.b from t1 where a<>b),13) in ((b),t1.f,b) and not t1.b in (select  -cast(avg(13) AS integer) from t1 union select cast(avg(11) AS integer) from t1) or a>=13 then (abs(t1.b+a)/abs(11)) else t1.e end-17+t1.d<>b then (19) else f end=e),13)>=t1.c}
+} {}
+do_test randexpr-2.2426 {
+  db eval {SELECT t1.e*case when ((13)-13-13-t1.d+t1.c*b>11) then b when case when (t1.a*b not in (t1.a,t1.b,t1.f)) then 11+e else t1.f end<= -f or f in (t1.a,11,13) or exists(select 1 from t1 where not exists(select 1 from t1 where f in (f,d,t1.e))) then t1.d else b end FROM t1 WHERE NOT (coalesce((select 19 from t1 where 13-t1.b*c-t1.a+case when case when coalesce((select +t1.b from t1 where a<>b),13) in ((b),t1.f,b) and not t1.b in (select  -cast(avg(13) AS integer) from t1 union select cast(avg(11) AS integer) from t1) or a>=13 then (abs(t1.b+a)/abs(11)) else t1.e end-17+t1.d<>b then (19) else f end=e),13)>=t1.c)}
+} {100000}
+do_test randexpr-2.2427 {
+  db eval {SELECT coalesce((select max(d) from t1 where 19+case t1.b when t1.a-a then (abs(case when (e>=case t1.a when coalesce((select max(t1.d) from t1 where (select case  -max(c)+cast(avg(t1.a) AS integer) when cast(avg(t1.a) AS integer) then cast(avg(19) AS integer) else cast(avg(t1.b) AS integer) end from t1)>t1.c),coalesce((select max(d) from t1 where 19<>17 and d<=b), -(t1.c)))+e then c else t1.d end+b) then b when 19 between c and 17 then 11 else e end)/abs( -t1.b)) else t1.a end+13>=d),d) FROM t1 WHERE a=case when t1.f in (select (max(f)-++(min(t1.a))-max(19)-count(*)) from t1 union select +max(t1.b) from t1) then t1.b*19*19 when t1.f>d then 17-d else t1.f end and exists(select 1 from t1 where not exists(select 1 from t1 where d in (select count(distinct 11)+max(a) from t1 union select cast(avg(13) AS integer) from t1) or 19 not in (t1.b,c,13)))}
+} {}
+do_test randexpr-2.2428 {
+  db eval {SELECT coalesce((select max(d) from t1 where 19+case t1.b when t1.a-a then (abs(case when (e>=case t1.a when coalesce((select max(t1.d) from t1 where (select case  -max(c)+cast(avg(t1.a) AS integer) when cast(avg(t1.a) AS integer) then cast(avg(19) AS integer) else cast(avg(t1.b) AS integer) end from t1)>t1.c),coalesce((select max(d) from t1 where 19<>17 and d<=b), -(t1.c)))+e then c else t1.d end+b) then b when 19 between c and 17 then 11 else e end)/abs( -t1.b)) else t1.a end+13>=d),d) FROM t1 WHERE NOT (a=case when t1.f in (select (max(f)-++(min(t1.a))-max(19)-count(*)) from t1 union select +max(t1.b) from t1) then t1.b*19*19 when t1.f>d then 17-d else t1.f end and exists(select 1 from t1 where not exists(select 1 from t1 where d in (select count(distinct 11)+max(a) from t1 union select cast(avg(13) AS integer) from t1) or 19 not in (t1.b,c,13))))}
+} {400}
+do_test randexpr-2.2429 {
+  db eval {SELECT coalesce((select max(case t1.c | b-t1.d+13 when 17 then c else 13 end) from t1 where case when exists(select 1 from t1 where b<>t1.c) then t1.d when a not between (abs(t1.d)/abs((t1.b))) and (t1.c) or (a in (select ~max(((17))) from t1 union select case  -(count(distinct  -t1.c)) when count(distinct t1.c) then (count(*)) else max(f) end from t1)) and t1.f>19 or a<>11 then t1.b else t1.b end>(11)),13)+b*(b) FROM t1 WHERE case when not exists(select 1 from t1 where (19<>11+t1.b*c+d)) and 13<>b or t1.d between t1.c and b and f between t1.b and  -a or 19 between 19 and 17 or t1.e not between e and t1.d then ~13 else coalesce((select max(t1.b) from t1 where f=a),(a)) end in (select  -( -+count(distinct 11)-count(*))*count(distinct ( -t1.c))+(count(distinct t1.c))+max(17)-count(*) from t1 union select count(*) from t1)}
+} {}
+do_test randexpr-2.2430 {
+  db eval {SELECT coalesce((select max(case t1.c | b-t1.d+13 when 17 then c else 13 end) from t1 where case when exists(select 1 from t1 where b<>t1.c) then t1.d when a not between (abs(t1.d)/abs((t1.b))) and (t1.c) or (a in (select ~max(((17))) from t1 union select case  -(count(distinct  -t1.c)) when count(distinct t1.c) then (count(*)) else max(f) end from t1)) and t1.f>19 or a<>11 then t1.b else t1.b end>(11)),13)+b*(b) FROM t1 WHERE NOT (case when not exists(select 1 from t1 where (19<>11+t1.b*c+d)) and 13<>b or t1.d between t1.c and b and f between t1.b and  -a or 19 between 19 and 17 or t1.e not between e and t1.d then ~13 else coalesce((select max(t1.b) from t1 where f=a),(a)) end in (select  -( -+count(distinct 11)-count(*))*count(distinct ( -t1.c))+(count(distinct t1.c))+max(17)-count(*) from t1 union select count(*) from t1))}
+} {40013}
+do_test randexpr-2.2431 {
+  db eval {SELECT coalesce((select max(case t1.c & b-t1.d+13 when 17 then c else 13 end) from t1 where case when exists(select 1 from t1 where b<>t1.c) then t1.d when a not between (abs(t1.d)/abs((t1.b))) and (t1.c) or (a in (select ~max(((17))) from t1 union select case  -(count(distinct  -t1.c)) when count(distinct t1.c) then (count(*)) else max(f) end from t1)) and t1.f>19 or a<>11 then t1.b else t1.b end>(11)),13)+b*(b) FROM t1 WHERE NOT (case when not exists(select 1 from t1 where (19<>11+t1.b*c+d)) and 13<>b or t1.d between t1.c and b and f between t1.b and  -a or 19 between 19 and 17 or t1.e not between e and t1.d then ~13 else coalesce((select max(t1.b) from t1 where f=a),(a)) end in (select  -( -+count(distinct 11)-count(*))*count(distinct ( -t1.c))+(count(distinct t1.c))+max(17)-count(*) from t1 union select count(*) from t1))}
+} {40013}
+do_test randexpr-2.2432 {
+  db eval {SELECT coalesce((select max(coalesce((select max(11) from t1 where t1.b< -t1.b),e)+coalesce((select t1.b from t1 where not case when ~case when  -17+t1.d> - -t1.d then t1.b when t1.b between 13 and c or t1.a>= -f then t1.b else t1.e end+t1.c<= -c then 19 else t1.f end not in (c,d,e) or t1.f not between t1.b and 19 and 13>= -t1.f or 13 in (e,(t1.b),11)),t1.b)) from t1 where  -(f) not in (f,(t1.e),b)),t1.f) FROM t1 WHERE f in (select f from t1 union select t1.f*t1.b from t1)}
+} {700}
+do_test randexpr-2.2433 {
+  db eval {SELECT coalesce((select max(coalesce((select max(11) from t1 where t1.b< -t1.b),e)+coalesce((select t1.b from t1 where not case when ~case when  -17+t1.d> - -t1.d then t1.b when t1.b between 13 and c or t1.a>= -f then t1.b else t1.e end+t1.c<= -c then 19 else t1.f end not in (c,d,e) or t1.f not between t1.b and 19 and 13>= -t1.f or 13 in (e,(t1.b),11)),t1.b)) from t1 where  -(f) not in (f,(t1.e),b)),t1.f) FROM t1 WHERE NOT (f in (select f from t1 union select t1.f*t1.b from t1))}
+} {}
+do_test randexpr-2.2434 {
+  db eval {SELECT ( -+(a)*(abs(case coalesce((select max(d) from t1 where t1.d<>c*(select count(distinct e*coalesce((select 13-17 from t1 where not exists(select 1 from t1 where t1.a in (select f from t1 union select (a) from t1))),t1.f)+(t1.c)) from t1) | t1.e*19 and not t1.a<13),t1.b)+t1.b when t1.d then (t1.f) else t1.c end)/abs(t1.f))-13*t1.f) FROM t1 WHERE f>=t1.a+ -(select (count(*))-(~case cast(avg(t1.b-13-e) AS integer) when count(*) then (max(t1.f*case 13 when 11 then 13 else c end))- -cast(avg(t1.f) AS integer)*count(*)-min(19) else count(distinct d) end)+min(t1.d) |  -max(t1.b) from t1) | t1.b*17+t1.d+t1.b-d}
+} {}
+do_test randexpr-2.2435 {
+  db eval {SELECT ( -+(a)*(abs(case coalesce((select max(d) from t1 where t1.d<>c*(select count(distinct e*coalesce((select 13-17 from t1 where not exists(select 1 from t1 where t1.a in (select f from t1 union select (a) from t1))),t1.f)+(t1.c)) from t1) | t1.e*19 and not t1.a<13),t1.b)+t1.b when t1.d then (t1.f) else t1.c end)/abs(t1.f))-13*t1.f) FROM t1 WHERE NOT (f>=t1.a+ -(select (count(*))-(~case cast(avg(t1.b-13-e) AS integer) when count(*) then (max(t1.f*case 13 when 11 then 13 else c end))- -cast(avg(t1.f) AS integer)*count(*)-min(19) else count(distinct d) end)+min(t1.d) |  -max(t1.b) from t1) | t1.b*17+t1.d+t1.b-d)}
+} {-7800}
+do_test randexpr-2.2436 {
+  db eval {SELECT ( -+(a)*(abs(case coalesce((select max(d) from t1 where t1.d<>c*(select count(distinct e*coalesce((select 13-17 from t1 where not exists(select 1 from t1 where t1.a in (select f from t1 union select (a) from t1))),t1.f)+(t1.c)) from t1) & t1.e*19 and not t1.a<13),t1.b)+t1.b when t1.d then (t1.f) else t1.c end)/abs(t1.f))-13*t1.f) FROM t1 WHERE NOT (f>=t1.a+ -(select (count(*))-(~case cast(avg(t1.b-13-e) AS integer) when count(*) then (max(t1.f*case 13 when 11 then 13 else c end))- -cast(avg(t1.f) AS integer)*count(*)-min(19) else count(distinct d) end)+min(t1.d) |  -max(t1.b) from t1) | t1.b*17+t1.d+t1.b-d)}
+} {-7800}
+do_test randexpr-2.2437 {
+  db eval {SELECT coalesce((select t1.a from t1 where c in (select a from t1 union select t1.a*f from t1) and t1.b in (select (select count(*) from t1)*11 from t1 union select  -13 from t1)),13) FROM t1 WHERE (d<t1.b)}
+} {}
+do_test randexpr-2.2438 {
+  db eval {SELECT coalesce((select t1.a from t1 where c in (select a from t1 union select t1.a*f from t1) and t1.b in (select (select count(*) from t1)*11 from t1 union select  -13 from t1)),13) FROM t1 WHERE NOT ((d<t1.b))}
+} {13}
+do_test randexpr-2.2439 {
+  db eval {SELECT case when (not exists(select 1 from t1 where a<=case a | e-case t1.f when c then e else 19 end | t1.b when t1.c then t1.e else 19 end+d)) or f between a and b and (t1.f) not in (d,t1.e,11) then case 17+e | t1.c when 19 then 13 else  -(19) end | 11 else a end-t1.f-f*t1.c FROM t1 WHERE case when t1.b in ( - -case when case when t1.f-case when 19<=c then a else 19 end between 13 and t1.d and not a not in ((f),d,f) then t1.c-a when t1.d not in ( -b,c,11) then 13 else f end>=17 then d when f<=t1.c then t1.a else d end,t1.e,e) or not 19>c then t1.c-19 else 13 end<>t1.c}
+} {-180500}
+do_test randexpr-2.2440 {
+  db eval {SELECT case when (not exists(select 1 from t1 where a<=case a | e-case t1.f when c then e else 19 end | t1.b when t1.c then t1.e else 19 end+d)) or f between a and b and (t1.f) not in (d,t1.e,11) then case 17+e | t1.c when 19 then 13 else  -(19) end | 11 else a end-t1.f-f*t1.c FROM t1 WHERE NOT (case when t1.b in ( - -case when case when t1.f-case when 19<=c then a else 19 end between 13 and t1.d and not a not in ((f),d,f) then t1.c-a when t1.d not in ( -b,c,11) then 13 else f end>=17 then d when f<=t1.c then t1.a else d end,t1.e,e) or not 19>c then t1.c-19 else 13 end<>t1.c)}
+} {}
+do_test randexpr-2.2441 {
+  db eval {SELECT case when (not exists(select 1 from t1 where a<=case a & e-case t1.f when c then e else 19 end & t1.b when t1.c then t1.e else 19 end+d)) or f between a and b and (t1.f) not in (d,t1.e,11) then case 17+e & t1.c when 19 then 13 else  -(19) end & 11 else a end-t1.f-f*t1.c FROM t1 WHERE case when t1.b in ( - -case when case when t1.f-case when 19<=c then a else 19 end between 13 and t1.d and not a not in ((f),d,f) then t1.c-a when t1.d not in ( -b,c,11) then 13 else f end>=17 then d when f<=t1.c then t1.a else d end,t1.e,e) or not 19>c then t1.c-19 else 13 end<>t1.c}
+} {-180500}
+do_test randexpr-2.2442 {
+  db eval {SELECT coalesce((select d-(abs(case when +coalesce((select 19 from t1 where not exists(select 1 from t1 where d | f in (select ~case count(distinct f) when ( -(cast(avg((( -19))) AS integer))) then (count(*)) else count(distinct 17) end*(max(t1.d)) from t1 union select min(b) from t1))),13) | t1.b+t1.e in (13,(t1.b),t1.a) then t1.a when a in (select t1.f from t1 union select t1.b from t1) then t1.e else a end)/abs(f))-t1.e from t1 where not exists(select 1 from t1 where not 19 in (select t1.b from t1 union select t1.f from t1) or 13 in (select e from t1 union select e from t1))),f) FROM t1 WHERE not exists(select 1 from t1 where case when not exists(select 1 from t1 where a<+case c when (abs(t1.b)/abs(e))+t1.b-b-t1.b then (t1.d)*t1.c else t1.d end) then b else 19 end in (select  -count(distinct c)*(max(f)) | ~+case min(t1.a) when cast(avg(c) AS integer) then cast(avg(t1.a) AS integer) | count(distinct t1.d)* -count(distinct t1.e) else ( -count(*)) end |  -cast(avg(t1.d) AS integer)+min(a)*count(distinct b) from t1 union select max(13) from t1))}
+} {600}
+do_test randexpr-2.2443 {
+  db eval {SELECT coalesce((select d-(abs(case when +coalesce((select 19 from t1 where not exists(select 1 from t1 where d | f in (select ~case count(distinct f) when ( -(cast(avg((( -19))) AS integer))) then (count(*)) else count(distinct 17) end*(max(t1.d)) from t1 union select min(b) from t1))),13) | t1.b+t1.e in (13,(t1.b),t1.a) then t1.a when a in (select t1.f from t1 union select t1.b from t1) then t1.e else a end)/abs(f))-t1.e from t1 where not exists(select 1 from t1 where not 19 in (select t1.b from t1 union select t1.f from t1) or 13 in (select e from t1 union select e from t1))),f) FROM t1 WHERE NOT (not exists(select 1 from t1 where case when not exists(select 1 from t1 where a<+case c when (abs(t1.b)/abs(e))+t1.b-b-t1.b then (t1.d)*t1.c else t1.d end) then b else 19 end in (select  -count(distinct c)*(max(f)) | ~+case min(t1.a) when cast(avg(c) AS integer) then cast(avg(t1.a) AS integer) | count(distinct t1.d)* -count(distinct t1.e) else ( -count(*)) end |  -cast(avg(t1.d) AS integer)+min(a)*count(distinct b) from t1 union select max(13) from t1)))}
+} {}
+do_test randexpr-2.2444 {
+  db eval {SELECT coalesce((select d-(abs(case when +coalesce((select 19 from t1 where not exists(select 1 from t1 where d & f in (select ~case count(distinct f) when ( -(cast(avg((( -19))) AS integer))) then (count(*)) else count(distinct 17) end*(max(t1.d)) from t1 union select min(b) from t1))),13) & t1.b+t1.e in (13,(t1.b),t1.a) then t1.a when a in (select t1.f from t1 union select t1.b from t1) then t1.e else a end)/abs(f))-t1.e from t1 where not exists(select 1 from t1 where not 19 in (select t1.b from t1 union select t1.f from t1) or 13 in (select e from t1 union select e from t1))),f) FROM t1 WHERE not exists(select 1 from t1 where case when not exists(select 1 from t1 where a<+case c when (abs(t1.b)/abs(e))+t1.b-b-t1.b then (t1.d)*t1.c else t1.d end) then b else 19 end in (select  -count(distinct c)*(max(f)) | ~+case min(t1.a) when cast(avg(c) AS integer) then cast(avg(t1.a) AS integer) | count(distinct t1.d)* -count(distinct t1.e) else ( -count(*)) end |  -cast(avg(t1.d) AS integer)+min(a)*count(distinct b) from t1 union select max(13) from t1))}
+} {600}
+do_test randexpr-2.2445 {
+  db eval {SELECT (t1.e)+t1.c-coalesce((select max((abs(coalesce((select case when f>=(abs(coalesce((select max(a) from t1 where 11*(t1.f)*a*t1.d=11),t1.b))/abs(t1.d))+t1.b then c when not exists(select 1 from t1 where t1.c<>b) then 13 else 11 end from t1 where (13 not in (f,t1.c,13))),b)+t1.d)/abs(t1.f))) from t1 where b<>t1.a),t1.a) | t1.d FROM t1 WHERE ~a<>a or d<>t1.e}
+} {927}
+do_test randexpr-2.2446 {
+  db eval {SELECT (t1.e)+t1.c-coalesce((select max((abs(coalesce((select case when f>=(abs(coalesce((select max(a) from t1 where 11*(t1.f)*a*t1.d=11),t1.b))/abs(t1.d))+t1.b then c when not exists(select 1 from t1 where t1.c<>b) then 13 else 11 end from t1 where (13 not in (f,t1.c,13))),b)+t1.d)/abs(t1.f))) from t1 where b<>t1.a),t1.a) | t1.d FROM t1 WHERE NOT (~a<>a or d<>t1.e)}
+} {}
+do_test randexpr-2.2447 {
+  db eval {SELECT (t1.e)+t1.c-coalesce((select max((abs(coalesce((select case when f>=(abs(coalesce((select max(a) from t1 where 11*(t1.f)*a*t1.d=11),t1.b))/abs(t1.d))+t1.b then c when not exists(select 1 from t1 where t1.c<>b) then 13 else 11 end from t1 where (13 not in (f,t1.c,13))),b)+t1.d)/abs(t1.f))) from t1 where b<>t1.a),t1.a) & t1.d FROM t1 WHERE ~a<>a or d<>t1.e}
+} {272}
+do_test randexpr-2.2448 {
+  db eval {SELECT case when coalesce((select 11 from t1 where exists(select 1 from t1 where t1.a<= -19)),t1.c-t1.e*e-19-t1.d-t1.e-~a*coalesce((select max(b) from t1 where b>(abs(+c+case c when 11 then t1.f else 11 end)/abs(b))),t1.e)-f+t1.c+19+e-t1.e)<=t1.f then e else c end FROM t1 WHERE (abs(t1.d)/abs(~b)) in (select count(distinct case when t1.c+t1.f<coalesce((select b from t1 where ((select case min( -d+d+f+d) when ~max(t1.c) then case max(d) when  -( - -min(d)) then cast(avg(t1.d) AS integer) else (max( -c)) end else cast(avg(t1.e) AS integer) end from t1)<t1.b)),17) or t1.b=f then case when t1.f<>e and ((d) between t1.a and d) then t1.b else 13 end else 11 end) from t1 union select count(*) from t1)}
+} {500}
+do_test randexpr-2.2449 {
+  db eval {SELECT case when coalesce((select 11 from t1 where exists(select 1 from t1 where t1.a<= -19)),t1.c-t1.e*e-19-t1.d-t1.e-~a*coalesce((select max(b) from t1 where b>(abs(+c+case c when 11 then t1.f else 11 end)/abs(b))),t1.e)-f+t1.c+19+e-t1.e)<=t1.f then e else c end FROM t1 WHERE NOT ((abs(t1.d)/abs(~b)) in (select count(distinct case when t1.c+t1.f<coalesce((select b from t1 where ((select case min( -d+d+f+d) when ~max(t1.c) then case max(d) when  -( - -min(d)) then cast(avg(t1.d) AS integer) else (max( -c)) end else cast(avg(t1.e) AS integer) end from t1)<t1.b)),17) or t1.b=f then case when t1.f<>e and ((d) between t1.a and d) then t1.b else 13 end else 11 end) from t1 union select count(*) from t1))}
+} {}
+do_test randexpr-2.2450 {
+  db eval {SELECT case when 19*case when case when t1.e>((t1.d)) and 11>t1.d then  -17 else e end in (select count(distinct a) from t1 union select min(d) from t1) then (d) else e end | t1.c+a in (select count(*) from t1 union select case +(max(19))+count(distinct  -t1.d) when min(19) then cast(avg(e) AS integer) else cast(avg(t1.a) AS integer) end from t1) and 17 between 17 and t1.b then  -(t1.e) when b between t1.c and 13 then b else 11 end+t1.f*(t1.d)+t1.c FROM t1 WHERE ~+e+11>b}
+} {}
+do_test randexpr-2.2451 {
+  db eval {SELECT case when 19*case when case when t1.e>((t1.d)) and 11>t1.d then  -17 else e end in (select count(distinct a) from t1 union select min(d) from t1) then (d) else e end | t1.c+a in (select count(*) from t1 union select case +(max(19))+count(distinct  -t1.d) when min(19) then cast(avg(e) AS integer) else cast(avg(t1.a) AS integer) end from t1) and 17 between 17 and t1.b then  -(t1.e) when b between t1.c and 13 then b else 11 end+t1.f*(t1.d)+t1.c FROM t1 WHERE NOT (~+e+11>b)}
+} {240311}
+do_test randexpr-2.2452 {
+  db eval {SELECT case when 19*case when case when t1.e>((t1.d)) and 11>t1.d then  -17 else e end in (select count(distinct a) from t1 union select min(d) from t1) then (d) else e end & t1.c+a in (select count(*) from t1 union select case +(max(19))+count(distinct  -t1.d) when min(19) then cast(avg(e) AS integer) else cast(avg(t1.a) AS integer) end from t1) and 17 between 17 and t1.b then  -(t1.e) when b between t1.c and 13 then b else 11 end+t1.f*(t1.d)+t1.c FROM t1 WHERE NOT (~+e+11>b)}
+} {240311}
+do_test randexpr-2.2453 {
+  db eval {SELECT coalesce((select max((e)) from t1 where not (((abs(c)/abs((abs(t1.e)/abs(t1.d)))) between d and a+t1.f+19-a or (not exists(select 1 from t1 where f*11 in (19,t1.d,case when (11 in (19,17,19) and t1.a>t1.d) then t1.e-19 else t1.e end+f))) and a<11) and 19<>a)),c+d) FROM t1 WHERE 17+case b*f when b then a+e else d end*t1.b<=case when not f=11 then c when t1.e<f-coalesce((select max(d) from t1 where e in (select (select count(*) from t1) | coalesce((select e from t1 where t1.d>d and exists(select 1 from t1 where 19 in (t1.e,t1.a,(e)))),a)*c from t1 union select f from t1)),t1.a)+f+17 then t1.c else b end}
+} {}
+do_test randexpr-2.2454 {
+  db eval {SELECT coalesce((select max((e)) from t1 where not (((abs(c)/abs((abs(t1.e)/abs(t1.d)))) between d and a+t1.f+19-a or (not exists(select 1 from t1 where f*11 in (19,t1.d,case when (11 in (19,17,19) and t1.a>t1.d) then t1.e-19 else t1.e end+f))) and a<11) and 19<>a)),c+d) FROM t1 WHERE NOT (17+case b*f when b then a+e else d end*t1.b<=case when not f=11 then c when t1.e<f-coalesce((select max(d) from t1 where e in (select (select count(*) from t1) | coalesce((select e from t1 where t1.d>d and exists(select 1 from t1 where 19 in (t1.e,t1.a,(e)))),a)*c from t1 union select f from t1)),t1.a)+f+17 then t1.c else b end)}
+} {500}
+do_test randexpr-2.2455 {
+  db eval {SELECT ((select cast(avg(case a when t1.d then (abs(coalesce((select coalesce((select coalesce((select e-a from t1 where not exists(select 1 from t1 where t1.f>11 or t1.a= -f)), -t1.a) from t1 where 11<= -t1.f),t1.f)-13 from t1 where not exists(select 1 from t1 where t1.e in (f,t1.b,d))),t1.d))/abs(11)) else (17) end) AS integer)+abs( -count(distinct e)+count(*)) |  -count(*)*+min(e)*count(distinct b)*cast(avg(11) AS integer) from t1)) FROM t1 WHERE d= -19}
+} {}
+do_test randexpr-2.2456 {
+  db eval {SELECT ((select cast(avg(case a when t1.d then (abs(coalesce((select coalesce((select coalesce((select e-a from t1 where not exists(select 1 from t1 where t1.f>11 or t1.a= -f)), -t1.a) from t1 where 11<= -t1.f),t1.f)-13 from t1 where not exists(select 1 from t1 where t1.e in (f,t1.b,d))),t1.d))/abs(11)) else (17) end) AS integer)+abs( -count(distinct e)+count(*)) |  -count(*)*+min(e)*count(distinct b)*cast(avg(11) AS integer) from t1)) FROM t1 WHERE NOT (d= -19)}
+} {-5483}
+do_test randexpr-2.2457 {
+  db eval {SELECT ((select cast(avg(case a when t1.d then (abs(coalesce((select coalesce((select coalesce((select e-a from t1 where not exists(select 1 from t1 where t1.f>11 or t1.a= -f)), -t1.a) from t1 where 11<= -t1.f),t1.f)-13 from t1 where not exists(select 1 from t1 where t1.e in (f,t1.b,d))),t1.d))/abs(11)) else (17) end) AS integer)+abs( -count(distinct e)+count(*)) &  -count(*)*+min(e)*count(distinct b)*cast(avg(11) AS integer) from t1)) FROM t1 WHERE NOT (d= -19)}
+} {0}
+do_test randexpr-2.2458 {
+  db eval {SELECT 11+t1.e*c | t1.a+t1.a*coalesce((select max(b*t1.d*case when c in (select t1.b from t1 union select case when (t1.b>=d) then 19 else case when ((((t1.a<>t1.b)))) then b when f<=11 then case when e not in (19,t1.d,a) then coalesce((select 11 from t1 where e between a and e),e) when 11<=e then t1.a else 13 end else t1.c end end from t1) then 19 else (t1.d) end-a) from t1 where (t1.d)<= -e),t1.f) FROM t1 WHERE ((f not between t1.a and (abs(19)/abs(17 | (a))) and ((exists(select 1 from t1 where coalesce((select case e*(17) when b-(abs((abs(11)/abs(t1.c+e+t1.c)))/abs(17-((t1.f-t1.e | 11)))) then e else a end from t1 where t1.c not in (19,t1.b,t1.d)),c)=b)))))}
+} {}
+do_test randexpr-2.2459 {
+  db eval {SELECT 11+t1.e*c | t1.a+t1.a*coalesce((select max(b*t1.d*case when c in (select t1.b from t1 union select case when (t1.b>=d) then 19 else case when ((((t1.a<>t1.b)))) then b when f<=11 then case when e not in (19,t1.d,a) then coalesce((select 11 from t1 where e between a and e),e) when 11<=e then t1.a else 13 end else t1.c end end from t1) then 19 else (t1.d) end-a) from t1 where (t1.d)<= -e),t1.f) FROM t1 WHERE NOT (((f not between t1.a and (abs(19)/abs(17 | (a))) and ((exists(select 1 from t1 where coalesce((select case e*(17) when b-(abs((abs(11)/abs(t1.c+e+t1.c)))/abs(17-((t1.f-t1.e | 11)))) then e else a end from t1 where t1.c not in (19,t1.b,t1.d)),c)=b))))))}
+} {191487}
+do_test randexpr-2.2460 {
+  db eval {SELECT 11+t1.e*c & t1.a+t1.a*coalesce((select max(b*t1.d*case when c in (select t1.b from t1 union select case when (t1.b>=d) then 19 else case when ((((t1.a<>t1.b)))) then b when f<=11 then case when e not in (19,t1.d,a) then coalesce((select 11 from t1 where e between a and e),e) when 11<=e then t1.a else 13 end else t1.c end end from t1) then 19 else (t1.d) end-a) from t1 where (t1.d)<= -e),t1.f) FROM t1 WHERE NOT (((f not between t1.a and (abs(19)/abs(17 | (a))) and ((exists(select 1 from t1 where coalesce((select case e*(17) when b-(abs((abs(11)/abs(t1.c+e+t1.c)))/abs(17-((t1.f-t1.e | 11)))) then e else a end from t1 where t1.c not in (19,t1.b,t1.d)),c)=b))))))}
+} {18624}
+do_test randexpr-2.2461 {
+  db eval {SELECT (select (case +~ -abs(count(distinct + -(select (case ~((min(t1.b)+max(a))+count(*))*cast(avg(e) AS integer) when count(distinct (17)) then count(distinct t1.d) else max(a) end) from t1)*(17)-t1.f+case (abs( -t1.e)/abs(17)) when t1.f then b else 11 end)) | max(c)-case max(f) when (max(t1.f)) then min(c) else cast(avg((t1.d)) AS integer) end when count(*) then min(t1.a) else cast(avg(t1.c) AS integer) end) from t1) FROM t1 WHERE 13 in ((select ~ -abs((abs( -max(c)+count(distinct c)-~case +max(f) when min(13) then count(distinct t1.e) else count(*) end-((cast(avg(t1.c) AS integer)))))) from t1),~t1.c-t1.e,case when exists(select 1 from t1 where not exists(select 1 from t1 where t1.a in (select case when t1.c<d or e>a then b else (c) end+t1.d from t1 union select  -t1.e from t1)) or 11 not between b and d or e>e) then t1.f else t1.f end*t1.b- -t1.b)}
+} {}
+do_test randexpr-2.2462 {
+  db eval {SELECT (select (case +~ -abs(count(distinct + -(select (case ~((min(t1.b)+max(a))+count(*))*cast(avg(e) AS integer) when count(distinct (17)) then count(distinct t1.d) else max(a) end) from t1)*(17)-t1.f+case (abs( -t1.e)/abs(17)) when t1.f then b else 11 end)) | max(c)-case max(f) when (max(t1.f)) then min(c) else cast(avg((t1.d)) AS integer) end when count(*) then min(t1.a) else cast(avg(t1.c) AS integer) end) from t1) FROM t1 WHERE NOT (13 in ((select ~ -abs((abs( -max(c)+count(distinct c)-~case +max(f) when min(13) then count(distinct t1.e) else count(*) end-((cast(avg(t1.c) AS integer)))))) from t1),~t1.c-t1.e,case when exists(select 1 from t1 where not exists(select 1 from t1 where t1.a in (select case when t1.c<d or e>a then b else (c) end+t1.d from t1 union select  -t1.e from t1)) or 11 not between b and d or e>e) then t1.f else t1.f end*t1.b- -t1.b))}
+} {300}
+do_test randexpr-2.2463 {
+  db eval {SELECT (select (case +~ -abs(count(distinct + -(select (case ~((min(t1.b)+max(a))+count(*))*cast(avg(e) AS integer) when count(distinct (17)) then count(distinct t1.d) else max(a) end) from t1)*(17)-t1.f+case (abs( -t1.e)/abs(17)) when t1.f then b else 11 end)) & max(c)-case max(f) when (max(t1.f)) then min(c) else cast(avg((t1.d)) AS integer) end when count(*) then min(t1.a) else cast(avg(t1.c) AS integer) end) from t1) FROM t1 WHERE NOT (13 in ((select ~ -abs((abs( -max(c)+count(distinct c)-~case +max(f) when min(13) then count(distinct t1.e) else count(*) end-((cast(avg(t1.c) AS integer)))))) from t1),~t1.c-t1.e,case when exists(select 1 from t1 where not exists(select 1 from t1 where t1.a in (select case when t1.c<d or e>a then b else (c) end+t1.d from t1 union select  -t1.e from t1)) or 11 not between b and d or e>e) then t1.f else t1.f end*t1.b- -t1.b))}
+} {300}
+do_test randexpr-2.2464 {
+  db eval {SELECT case when (abs(~(t1.e))/abs(case when (( -13<d or b not in (t1.d,a,19)) and t1.b<d) or a<13 then +~c else 17 end)) in (select cast(avg(t1.b |  -t1.f) AS integer)- - -case (~min(t1.e)+count(*)) when  -max(13) then max(t1.c) else  -cast(avg(11) AS integer) end from t1 union select cast(avg(11) AS integer) from t1) then t1.e when not exists(select 1 from t1 where (19 not between d and 13)) then 19 else c end-t1.c FROM t1 WHERE  -t1.a-+case when c between b and t1.a then 19 else t1.b end | (coalesce((select t1.f from t1 where case ~((abs(case case t1.e when t1.b then  -13 else f end when t1.a then t1.f else t1.b end+(e)-t1.b)/abs(c))+t1.d) when 19 then 11 else a end not in ( - -13,a,11)),b))+t1.b+e in (select t1.d from t1 union select d from t1)}
+} {}
+do_test randexpr-2.2465 {
+  db eval {SELECT case when (abs(~(t1.e))/abs(case when (( -13<d or b not in (t1.d,a,19)) and t1.b<d) or a<13 then +~c else 17 end)) in (select cast(avg(t1.b |  -t1.f) AS integer)- - -case (~min(t1.e)+count(*)) when  -max(13) then max(t1.c) else  -cast(avg(11) AS integer) end from t1 union select cast(avg(11) AS integer) from t1) then t1.e when not exists(select 1 from t1 where (19 not between d and 13)) then 19 else c end-t1.c FROM t1 WHERE NOT ( -t1.a-+case when c between b and t1.a then 19 else t1.b end | (coalesce((select t1.f from t1 where case ~((abs(case case t1.e when t1.b then  -13 else f end when t1.a then t1.f else t1.b end+(e)-t1.b)/abs(c))+t1.d) when 19 then 11 else a end not in ( - -13,a,11)),b))+t1.b+e in (select t1.d from t1 union select d from t1))}
+} {0}
+do_test randexpr-2.2466 {
+  db eval {SELECT case when (abs(~(t1.e))/abs(case when (( -13<d or b not in (t1.d,a,19)) and t1.b<d) or a<13 then +~c else 17 end)) in (select cast(avg(t1.b &  -t1.f) AS integer)- - -case (~min(t1.e)+count(*)) when  -max(13) then max(t1.c) else  -cast(avg(11) AS integer) end from t1 union select cast(avg(11) AS integer) from t1) then t1.e when not exists(select 1 from t1 where (19 not between d and 13)) then 19 else c end-t1.c FROM t1 WHERE NOT ( -t1.a-+case when c between b and t1.a then 19 else t1.b end | (coalesce((select t1.f from t1 where case ~((abs(case case t1.e when t1.b then  -13 else f end when t1.a then t1.f else t1.b end+(e)-t1.b)/abs(c))+t1.d) when 19 then 11 else a end not in ( - -13,a,11)),b))+t1.b+e in (select t1.d from t1 union select d from t1))}
+} {0}
+do_test randexpr-2.2467 {
+  db eval {SELECT case when (select  -case abs(min(c)) when count(distinct a)-min(t1.c) then  -~abs(max(c)) | min( -13) |  -count(*)+min(d)*count(*) else  -(count(distinct t1.f)) end from t1) in (select count(distinct b)+max(f) from t1 union select cast(avg(19) AS integer) from t1) then (t1.d) when b<=case d when t1.d then t1.a else t1.d end then coalesce((select t1.d from t1 where not exists(select 1 from t1 where t1.a not in (11,e,13))),13) else 17 end FROM t1 WHERE t1.f in (select count(*)-max(case f+(abs(e-17*(abs(11+17+e)/abs(f)) | t1.e*b+t1.d)/abs(e))+t1.a when t1.a then  -t1.d else 13 end) | abs( -cast(avg(b) AS integer)-count(distinct 13) | (count(*))+count(*))-cast(avg(((a))) AS integer) from t1 union select count(distinct 11) from t1)}
+} {}
+do_test randexpr-2.2468 {
+  db eval {SELECT case when (select  -case abs(min(c)) when count(distinct a)-min(t1.c) then  -~abs(max(c)) | min( -13) |  -count(*)+min(d)*count(*) else  -(count(distinct t1.f)) end from t1) in (select count(distinct b)+max(f) from t1 union select cast(avg(19) AS integer) from t1) then (t1.d) when b<=case d when t1.d then t1.a else t1.d end then coalesce((select t1.d from t1 where not exists(select 1 from t1 where t1.a not in (11,e,13))),13) else 17 end FROM t1 WHERE NOT (t1.f in (select count(*)-max(case f+(abs(e-17*(abs(11+17+e)/abs(f)) | t1.e*b+t1.d)/abs(e))+t1.a when t1.a then  -t1.d else 13 end) | abs( -cast(avg(b) AS integer)-count(distinct 13) | (count(*))+count(*))-cast(avg(((a))) AS integer) from t1 union select count(distinct 11) from t1))}
+} {17}
+do_test randexpr-2.2469 {
+  db eval {SELECT case when (select  -case abs(min(c)) when count(distinct a)-min(t1.c) then  -~abs(max(c)) & min( -13) &  -count(*)+min(d)*count(*) else  -(count(distinct t1.f)) end from t1) in (select count(distinct b)+max(f) from t1 union select cast(avg(19) AS integer) from t1) then (t1.d) when b<=case d when t1.d then t1.a else t1.d end then coalesce((select t1.d from t1 where not exists(select 1 from t1 where t1.a not in (11,e,13))),13) else 17 end FROM t1 WHERE NOT (t1.f in (select count(*)-max(case f+(abs(e-17*(abs(11+17+e)/abs(f)) | t1.e*b+t1.d)/abs(e))+t1.a when t1.a then  -t1.d else 13 end) | abs( -cast(avg(b) AS integer)-count(distinct 13) | (count(*))+count(*))-cast(avg(((a))) AS integer) from t1 union select count(distinct 11) from t1))}
+} {17}
+do_test randexpr-2.2470 {
+  db eval {SELECT (select min(coalesce((select max(t1.c-case t1.e | (abs(coalesce((select max(t1.b) from t1 where 19<f-13 or exists(select 1 from t1 where  -case coalesce((select max( -17-19) from t1 where (e>c)),f)+t1.b when 13 then t1.c else t1.b end<>a) or t1.a=a),e+t1.e))/abs((f))) when a then e else f end) from t1 where t1.a>t1.d),19)) from t1) FROM t1 WHERE 19*~case when (case when t1.f<>t1.a*17*(abs(t1.e)/abs(a))*a*(select case +min(11)*cast(avg(b) AS integer)*cast(avg(19) AS integer) when count(distinct t1.f) then max( -t1.e) else cast(avg( -f) AS integer) end from t1)*(select min(t1.b) from t1)*t1.d then coalesce((select max(11) from t1 where t1.a between t1.d and 17 and 19 not between 17 and a),17) else 17 end in (select t1.f from t1 union select 17 from t1)) then ~t1.b else t1.d end<=b}
+} {}
+do_test randexpr-2.2471 {
+  db eval {SELECT (select min(coalesce((select max(t1.c-case t1.e | (abs(coalesce((select max(t1.b) from t1 where 19<f-13 or exists(select 1 from t1 where  -case coalesce((select max( -17-19) from t1 where (e>c)),f)+t1.b when 13 then t1.c else t1.b end<>a) or t1.a=a),e+t1.e))/abs((f))) when a then e else f end) from t1 where t1.a>t1.d),19)) from t1) FROM t1 WHERE NOT (19*~case when (case when t1.f<>t1.a*17*(abs(t1.e)/abs(a))*a*(select case +min(11)*cast(avg(b) AS integer)*cast(avg(19) AS integer) when count(distinct t1.f) then max( -t1.e) else cast(avg( -f) AS integer) end from t1)*(select min(t1.b) from t1)*t1.d then coalesce((select max(11) from t1 where t1.a between t1.d and 17 and 19 not between 17 and a),17) else 17 end in (select t1.f from t1 union select 17 from t1)) then ~t1.b else t1.d end<=b)}
+} {19}
+do_test randexpr-2.2472 {
+  db eval {SELECT (select min(coalesce((select max(t1.c-case t1.e & (abs(coalesce((select max(t1.b) from t1 where 19<f-13 or exists(select 1 from t1 where  -case coalesce((select max( -17-19) from t1 where (e>c)),f)+t1.b when 13 then t1.c else t1.b end<>a) or t1.a=a),e+t1.e))/abs((f))) when a then e else f end) from t1 where t1.a>t1.d),19)) from t1) FROM t1 WHERE NOT (19*~case when (case when t1.f<>t1.a*17*(abs(t1.e)/abs(a))*a*(select case +min(11)*cast(avg(b) AS integer)*cast(avg(19) AS integer) when count(distinct t1.f) then max( -t1.e) else cast(avg( -f) AS integer) end from t1)*(select min(t1.b) from t1)*t1.d then coalesce((select max(11) from t1 where t1.a between t1.d and 17 and 19 not between 17 and a),17) else 17 end in (select t1.f from t1 union select 17 from t1)) then ~t1.b else t1.d end<=b)}
+} {19}
+do_test randexpr-2.2473 {
+  db eval {SELECT  -case (select ~count(*)-~abs(~ -(count(*)+count(*)))*count(*) from t1)*13++coalesce((select max( -+17+case when f not between e and t1.c and t1.f between t1.e and t1.a then e when (b)>19 then f else t1.b end) from t1 where 17 not in (a,t1.f,17) or (d>=t1.e) or a<=17),d) when t1.c then 19 else t1.f end FROM t1 WHERE (19<+case when not 17>e then +t1.f when e | 13 in (select ~(abs(a)/abs(t1.b)) from t1 union select t1.f from t1) then case when f between case case b*f+19-case t1.c when f then 13 else c end when t1.d then b else b end*11 when 19 then 13 else t1.c end and t1.f then c when t1.b<=c then t1.d else 13 end else t1.d end)}
+} {-600}
+do_test randexpr-2.2474 {
+  db eval {SELECT  -case (select ~count(*)-~abs(~ -(count(*)+count(*)))*count(*) from t1)*13++coalesce((select max( -+17+case when f not between e and t1.c and t1.f between t1.e and t1.a then e when (b)>19 then f else t1.b end) from t1 where 17 not in (a,t1.f,17) or (d>=t1.e) or a<=17),d) when t1.c then 19 else t1.f end FROM t1 WHERE NOT ((19<+case when not 17>e then +t1.f when e | 13 in (select ~(abs(a)/abs(t1.b)) from t1 union select t1.f from t1) then case when f between case case b*f+19-case t1.c when f then 13 else c end when t1.d then b else b end*11 when 19 then 13 else t1.c end and t1.f then c when t1.b<=c then t1.d else 13 end else t1.d end))}
+} {}
+do_test randexpr-2.2475 {
+  db eval {SELECT case when e not in (t1.a,t1.b,t1.e-t1.a) then f-coalesce((select max(~19-t1.b-f) from t1 where case when (select count(*)*count(*) from t1)-coalesce((select max(13) from t1 where (abs(13)/abs(19-f)) in (select count(distinct f) from t1 union select ~ - -count(distinct  -f) from t1)),t1.b) between t1.f and t1.d then d else f end between t1.f and a),t1.f)+ -t1.f else t1.e end FROM t1 WHERE d not in (c,t1.d, -coalesce((select max( -coalesce((select f from t1 where t1.b>t1.c* - -t1.f),case when (t1.e-t1.e | 19*t1.c+e<19 and 19<=e or not exists(select 1 from t1 where t1.a<=t1.d or e in (a,t1.e,b))) then  -e when f in ((t1.a),d,11) then 13 else d end)) from t1 where c between 19 and f),b))}
+} {}
+do_test randexpr-2.2476 {
+  db eval {SELECT case when e not in (t1.a,t1.b,t1.e-t1.a) then f-coalesce((select max(~19-t1.b-f) from t1 where case when (select count(*)*count(*) from t1)-coalesce((select max(13) from t1 where (abs(13)/abs(19-f)) in (select count(distinct f) from t1 union select ~ - -count(distinct  -f) from t1)),t1.b) between t1.f and t1.d then d else f end between t1.f and a),t1.f)+ -t1.f else t1.e end FROM t1 WHERE NOT (d not in (c,t1.d, -coalesce((select max( -coalesce((select f from t1 where t1.b>t1.c* - -t1.f),case when (t1.e-t1.e | 19*t1.c+e<19 and 19<=e or not exists(select 1 from t1 where t1.a<=t1.d or e in (a,t1.e,b))) then  -e when f in ((t1.a),d,11) then 13 else d end)) from t1 where c between 19 and f),b)))}
+} {-600}
+do_test randexpr-2.2477 {
+  db eval {SELECT  -case when (17<>t1.b-d+t1.a | t1.f) then ~c when ((19)-coalesce((select case t1.d-t1.f when (abs(((select abs(cast(avg(13) AS integer) | cast(avg( -(t1.b)) AS integer)) from t1)))/abs(case d when t1.b then  -11 else 19 end))*17 then t1.e else t1.a end from t1 where (19 not in (f,t1.d,t1.e))),t1.d)<>a) then t1.d else t1.c end FROM t1 WHERE a in (~b-t1.f*c,13 | coalesce((select max(t1.a) from t1 where  -t1.a-~case when b in (case when t1.e in (select 11 from t1 union select d from t1) and 13>19 then 13*c when f not in (t1.d,c,13) then t1.a else a end,t1.f,d) then a else 11 end+b in (select +(min(11)) from t1 union select max(11)+cast(avg(19) AS integer) from t1)),13),t1.f)}
+} {}
+do_test randexpr-2.2478 {
+  db eval {SELECT  -case when (17<>t1.b-d+t1.a | t1.f) then ~c when ((19)-coalesce((select case t1.d-t1.f when (abs(((select abs(cast(avg(13) AS integer) | cast(avg( -(t1.b)) AS integer)) from t1)))/abs(case d when t1.b then  -11 else 19 end))*17 then t1.e else t1.a end from t1 where (19 not in (f,t1.d,t1.e))),t1.d)<>a) then t1.d else t1.c end FROM t1 WHERE NOT (a in (~b-t1.f*c,13 | coalesce((select max(t1.a) from t1 where  -t1.a-~case when b in (case when t1.e in (select 11 from t1 union select d from t1) and 13>19 then 13*c when f not in (t1.d,c,13) then t1.a else a end,t1.f,d) then a else 11 end+b in (select +(min(11)) from t1 union select max(11)+cast(avg(19) AS integer) from t1)),13),t1.f))}
+} {301}
+do_test randexpr-2.2479 {
+  db eval {SELECT  -case when (17<>t1.b-d+t1.a & t1.f) then ~c when ((19)-coalesce((select case t1.d-t1.f when (abs(((select abs(cast(avg(13) AS integer) & cast(avg( -(t1.b)) AS integer)) from t1)))/abs(case d when t1.b then  -11 else 19 end))*17 then t1.e else t1.a end from t1 where (19 not in (f,t1.d,t1.e))),t1.d)<>a) then t1.d else t1.c end FROM t1 WHERE NOT (a in (~b-t1.f*c,13 | coalesce((select max(t1.a) from t1 where  -t1.a-~case when b in (case when t1.e in (select 11 from t1 union select d from t1) and 13>19 then 13*c when f not in (t1.d,c,13) then t1.a else a end,t1.f,d) then a else 11 end+b in (select +(min(11)) from t1 union select max(11)+cast(avg(19) AS integer) from t1)),13),t1.f))}
+} {301}
+do_test randexpr-2.2480 {
+  db eval {SELECT case f when case when +t1.a between a and case e when 17 then t1.e else f-t1.e+a-((select ++count(distinct d) | cast(avg(t1.e) AS integer)+count(distinct e) |  -count(*) from t1)) end-t1.b*f and t1.b | t1.b-b<=c then  -t1.b+d when 11 in (select t1.e from t1 union select 11 from t1) then 13 else a end then b else c end FROM t1 WHERE case when ++c-13*d>t1.a and f=t1.d-t1.b then (select count(distinct 11)*(+cast(avg(t1.b) AS integer)+case cast(avg(e) AS integer) when max(d) | min(11) then min(f) else ( -min(t1.b)) end*(count(*)))* -min(19) from t1) else t1.e end*11 in (select a from t1 union select t1.e from t1) and e=17 or 11 not in ( -t1.d,f,t1.f)}
+} {300}
+do_test randexpr-2.2481 {
+  db eval {SELECT case f when case when +t1.a between a and case e when 17 then t1.e else f-t1.e+a-((select ++count(distinct d) | cast(avg(t1.e) AS integer)+count(distinct e) |  -count(*) from t1)) end-t1.b*f and t1.b | t1.b-b<=c then  -t1.b+d when 11 in (select t1.e from t1 union select 11 from t1) then 13 else a end then b else c end FROM t1 WHERE NOT (case when ++c-13*d>t1.a and f=t1.d-t1.b then (select count(distinct 11)*(+cast(avg(t1.b) AS integer)+case cast(avg(e) AS integer) when max(d) | min(11) then min(f) else ( -min(t1.b)) end*(count(*)))* -min(19) from t1) else t1.e end*11 in (select a from t1 union select t1.e from t1) and e=17 or 11 not in ( -t1.d,f,t1.f))}
+} {}
+do_test randexpr-2.2482 {
+  db eval {SELECT case f when case when +t1.a between a and case e when 17 then t1.e else f-t1.e+a-((select ++count(distinct d) & cast(avg(t1.e) AS integer)+count(distinct e) &  -count(*) from t1)) end-t1.b*f and t1.b & t1.b-b<=c then  -t1.b+d when 11 in (select t1.e from t1 union select 11 from t1) then 13 else a end then b else c end FROM t1 WHERE case when ++c-13*d>t1.a and f=t1.d-t1.b then (select count(distinct 11)*(+cast(avg(t1.b) AS integer)+case cast(avg(e) AS integer) when max(d) | min(11) then min(f) else ( -min(t1.b)) end*(count(*)))* -min(19) from t1) else t1.e end*11 in (select a from t1 union select t1.e from t1) and e=17 or 11 not in ( -t1.d,f,t1.f)}
+} {300}
+do_test randexpr-2.2483 {
+  db eval {SELECT  -(19)-coalesce((select max(t1.e) from t1 where c not in (t1.b,17,t1.c)),case coalesce((select b+f+coalesce((select t1.a from t1 where t1.e>=t1.e+t1.a+t1.c or t1.f between c and t1.f),t1.e) from t1 where 11<>13 or t1.a=b),t1.c)*f+a when a then 17 else 17 end+t1.e)+a FROM t1 WHERE e | a not between  -case when not c between case when exists(select 1 from t1 where (f not in (coalesce((select max(t1.d) from t1 where t1.e=t1.d),t1.e)+a,19,t1.c)) or not exists(select 1 from t1 where a in (19,a,e) and 11>=t1.f)) or 11<17 then t1.e+19*t1.f-b when t1.c in (e,t1.b,e) then f else t1.f end and t1.b or (11>=(t1.a)) then e when t1.a=t1.a then (select count(*) from t1) else e end and t1.b}
+} {-436}
+do_test randexpr-2.2484 {
+  db eval {SELECT  -(19)-coalesce((select max(t1.e) from t1 where c not in (t1.b,17,t1.c)),case coalesce((select b+f+coalesce((select t1.a from t1 where t1.e>=t1.e+t1.a+t1.c or t1.f between c and t1.f),t1.e) from t1 where 11<>13 or t1.a=b),t1.c)*f+a when a then 17 else 17 end+t1.e)+a FROM t1 WHERE NOT (e | a not between  -case when not c between case when exists(select 1 from t1 where (f not in (coalesce((select max(t1.d) from t1 where t1.e=t1.d),t1.e)+a,19,t1.c)) or not exists(select 1 from t1 where a in (19,a,e) and 11>=t1.f)) or 11<17 then t1.e+19*t1.f-b when t1.c in (e,t1.b,e) then f else t1.f end and t1.b or (11>=(t1.a)) then e when t1.a=t1.a then (select count(*) from t1) else e end and t1.b)}
+} {}
+do_test randexpr-2.2485 {
+  db eval {SELECT case (abs(case when 13 not in (t1.f,a,t1.b) then d*(abs((coalesce((select coalesce((select coalesce((select max(t1.d-t1.a) from t1 where (t1.c between 19 and (c) and c<t1.c)),17) from t1 where (11>=17)),t1.f) from t1 where t1.e between e and 17),17))-b)/abs(d)) | b+t1.b when e between t1.f and d then 19 else 17 end*f)/abs(a)) when t1.c then 11 else t1.d end FROM t1 WHERE d>=e}
+} {}
+do_test randexpr-2.2486 {
+  db eval {SELECT case (abs(case when 13 not in (t1.f,a,t1.b) then d*(abs((coalesce((select coalesce((select coalesce((select max(t1.d-t1.a) from t1 where (t1.c between 19 and (c) and c<t1.c)),17) from t1 where (11>=17)),t1.f) from t1 where t1.e between e and 17),17))-b)/abs(d)) | b+t1.b when e between t1.f and d then 19 else 17 end*f)/abs(a)) when t1.c then 11 else t1.d end FROM t1 WHERE NOT (d>=e)}
+} {400}
+do_test randexpr-2.2487 {
+  db eval {SELECT case (abs(case when 13 not in (t1.f,a,t1.b) then d*(abs((coalesce((select coalesce((select coalesce((select max(t1.d-t1.a) from t1 where (t1.c between 19 and (c) and c<t1.c)),17) from t1 where (11>=17)),t1.f) from t1 where t1.e between e and 17),17))-b)/abs(d)) & b+t1.b when e between t1.f and d then 19 else 17 end*f)/abs(a)) when t1.c then 11 else t1.d end FROM t1 WHERE NOT (d>=e)}
+} {400}
+do_test randexpr-2.2488 {
+  db eval {SELECT case ((abs(case when case  -(select count(distinct case when t1.d in (select t1.b from t1 union select t1.b from t1) then b when f not in (t1.a,b,a) then c else 17 end) | cast(avg(d) AS integer) | min(b) from t1) | +b-e when t1.e then f else a end not between 11 and 13 then f when 17>e and 17<c or exists(select 1 from t1 where b>=t1.f) or d in ( -t1.c,f,t1.a) then  -a else t1.f end)/abs(t1.b))) when 17 then t1.f else t1.f end FROM t1 WHERE t1.d=t1.b+case c-11+coalesce((select case when +(select +(case max(t1.e) when count(*) then (count(*)) else cast(avg(d) AS integer) end) from t1)-d between b and t1.d then 11 else f end from t1 where t1.f<=t1.c and exists(select 1 from t1 where exists(select 1 from t1 where e between t1.e and t1.e))),t1.b)-19 when t1.d then t1.f else (t1.f) end | e-c or t1.f not in (b, -f, -f)}
+} {600}
+do_test randexpr-2.2489 {
+  db eval {SELECT case ((abs(case when case  -(select count(distinct case when t1.d in (select t1.b from t1 union select t1.b from t1) then b when f not in (t1.a,b,a) then c else 17 end) | cast(avg(d) AS integer) | min(b) from t1) | +b-e when t1.e then f else a end not between 11 and 13 then f when 17>e and 17<c or exists(select 1 from t1 where b>=t1.f) or d in ( -t1.c,f,t1.a) then  -a else t1.f end)/abs(t1.b))) when 17 then t1.f else t1.f end FROM t1 WHERE NOT (t1.d=t1.b+case c-11+coalesce((select case when +(select +(case max(t1.e) when count(*) then (count(*)) else cast(avg(d) AS integer) end) from t1)-d between b and t1.d then 11 else f end from t1 where t1.f<=t1.c and exists(select 1 from t1 where exists(select 1 from t1 where e between t1.e and t1.e))),t1.b)-19 when t1.d then t1.f else (t1.f) end | e-c or t1.f not in (b, -f, -f))}
+} {}
+do_test randexpr-2.2490 {
+  db eval {SELECT case ((abs(case when case  -(select count(distinct case when t1.d in (select t1.b from t1 union select t1.b from t1) then b when f not in (t1.a,b,a) then c else 17 end) & cast(avg(d) AS integer) & min(b) from t1) & +b-e when t1.e then f else a end not between 11 and 13 then f when 17>e and 17<c or exists(select 1 from t1 where b>=t1.f) or d in ( -t1.c,f,t1.a) then  -a else t1.f end)/abs(t1.b))) when 17 then t1.f else t1.f end FROM t1 WHERE t1.d=t1.b+case c-11+coalesce((select case when +(select +(case max(t1.e) when count(*) then (count(*)) else cast(avg(d) AS integer) end) from t1)-d between b and t1.d then 11 else f end from t1 where t1.f<=t1.c and exists(select 1 from t1 where exists(select 1 from t1 where e between t1.e and t1.e))),t1.b)-19 when t1.d then t1.f else (t1.f) end | e-c or t1.f not in (b, -f, -f)}
+} {600}
+do_test randexpr-2.2491 {
+  db eval {SELECT coalesce((select max(11) from t1 where 17 not in (11,case when (case when t1.f>b then t1.d*t1.d else (abs((abs(19)/abs(coalesce((select 17*t1.e-t1.c from t1 where 17<13 and (t1.a in (select (min(17)) from t1 union select max(c) from t1) and  -t1.d not in ((t1.b),d,a))), -17))))/abs(c))*13 end)<>(t1.f) then a when a=t1.a then 17 else  -19 end-d,a)),e) FROM t1 WHERE 19<=case when not exists(select 1 from t1 where case when case when case when ((t1.a in (select +min(t1.c) from t1 union select max(t1.a) from t1))) or 19 between t1.d and b then +c | 11*f else d end<b and 17 not in (t1.b,t1.e,t1.c) then case when f=t1.b then t1.c when d between t1.c and t1.c then 17 else 19 end else t1.d end<>b then c else t1.d end in (17,( -b),t1.c)) then t1.e when t1.f in (t1.a,13,d) then 17 else t1.f end*11*t1.d and a<=t1.d}
+} {11}
+do_test randexpr-2.2492 {
+  db eval {SELECT coalesce((select max(11) from t1 where 17 not in (11,case when (case when t1.f>b then t1.d*t1.d else (abs((abs(19)/abs(coalesce((select 17*t1.e-t1.c from t1 where 17<13 and (t1.a in (select (min(17)) from t1 union select max(c) from t1) and  -t1.d not in ((t1.b),d,a))), -17))))/abs(c))*13 end)<>(t1.f) then a when a=t1.a then 17 else  -19 end-d,a)),e) FROM t1 WHERE NOT (19<=case when not exists(select 1 from t1 where case when case when case when ((t1.a in (select +min(t1.c) from t1 union select max(t1.a) from t1))) or 19 between t1.d and b then +c | 11*f else d end<b and 17 not in (t1.b,t1.e,t1.c) then case when f=t1.b then t1.c when d between t1.c and t1.c then 17 else 19 end else t1.d end<>b then c else t1.d end in (17,( -b),t1.c)) then t1.e when t1.f in (t1.a,13,d) then 17 else t1.f end*11*t1.d and a<=t1.d)}
+} {}
+do_test randexpr-2.2493 {
+  db eval {SELECT b*case when t1.f not in (a,f,t1.e-e) and t1.b in (select coalesce((select max(t1.e) from t1 where coalesce((select max(~d) from t1 where case when t1.b not in (t1.c,17, -c) then t1.f when t1.c>17 then 17 else e end>t1.f and t1.f not in (b,f,d)),17)>=t1.c or 19<=t1.e),t1.a) from t1 union select (e) from t1) then d when t1.c<e then  -t1.b else b end*c FROM t1 WHERE b not between 13 and d}
+} {}
+do_test randexpr-2.2494 {
+  db eval {SELECT b*case when t1.f not in (a,f,t1.e-e) and t1.b in (select coalesce((select max(t1.e) from t1 where coalesce((select max(~d) from t1 where case when t1.b not in (t1.c,17, -c) then t1.f when t1.c>17 then 17 else e end>t1.f and t1.f not in (b,f,d)),17)>=t1.c or 19<=t1.e),t1.a) from t1 union select (e) from t1) then d when t1.c<e then  -t1.b else b end*c FROM t1 WHERE NOT (b not between 13 and d)}
+} {-12000000}
+do_test randexpr-2.2495 {
+  db eval {SELECT +(select ~(~cast(avg(t1.c) AS integer)* -cast(avg(c) AS integer))-case min(t1.e) when case count(*)*~(count(*)-+count(*)*cast(avg(case t1.d when 19 then d else (t1.a) end*e) AS integer) | cast(avg(13) AS integer)-cast(avg( -11) AS integer)+max(b)+cast(avg(19) AS integer) | (max(t1.e))) | min(f) when  -max(19) then (count(distinct  -t1.a)) else (count(distinct 17)) end then max(t1.d) else cast(avg(t1.e) AS integer) end from t1) FROM t1 WHERE t1.c-case f when 17 | b then case +case f | case when +t1.a>c and e in (select +max(17) from t1 union select count(*) from t1) then (abs( -c)/abs(a)) when b>=t1.f then t1.b else 11 end when t1.f then 17 else t1.d end*(c)+17 when e then c else t1.f end else  -c end-t1.c-c-19+c+a not in (t1.a,13,e)}
+} {-90801}
+do_test randexpr-2.2496 {
+  db eval {SELECT +(select ~(~cast(avg(t1.c) AS integer)* -cast(avg(c) AS integer))-case min(t1.e) when case count(*)*~(count(*)-+count(*)*cast(avg(case t1.d when 19 then d else (t1.a) end*e) AS integer) | cast(avg(13) AS integer)-cast(avg( -11) AS integer)+max(b)+cast(avg(19) AS integer) | (max(t1.e))) | min(f) when  -max(19) then (count(distinct  -t1.a)) else (count(distinct 17)) end then max(t1.d) else cast(avg(t1.e) AS integer) end from t1) FROM t1 WHERE NOT (t1.c-case f when 17 | b then case +case f | case when +t1.a>c and e in (select +max(17) from t1 union select count(*) from t1) then (abs( -c)/abs(a)) when b>=t1.f then t1.b else 11 end when t1.f then 17 else t1.d end*(c)+17 when e then c else t1.f end else  -c end-t1.c-c-19+c+a not in (t1.a,13,e))}
+} {}
+do_test randexpr-2.2497 {
+  db eval {SELECT +(select ~(~cast(avg(t1.c) AS integer)* -cast(avg(c) AS integer))-case min(t1.e) when case count(*)*~(count(*)-+count(*)*cast(avg(case t1.d when 19 then d else (t1.a) end*e) AS integer) & cast(avg(13) AS integer)-cast(avg( -11) AS integer)+max(b)+cast(avg(19) AS integer) & (max(t1.e))) & min(f) when  -max(19) then (count(distinct  -t1.a)) else (count(distinct 17)) end then max(t1.d) else cast(avg(t1.e) AS integer) end from t1) FROM t1 WHERE t1.c-case f when 17 | b then case +case f | case when +t1.a>c and e in (select +max(17) from t1 union select count(*) from t1) then (abs( -c)/abs(a)) when b>=t1.f then t1.b else 11 end when t1.f then 17 else t1.d end*(c)+17 when e then c else t1.f end else  -c end-t1.c-c-19+c+a not in (t1.a,13,e)}
+} {-90801}
+do_test randexpr-2.2498 {
+  db eval {SELECT case t1.d when e then t1.d else (abs(e-b)/abs(t1.c+a*a | 17+19*coalesce((select 17 from t1 where 11 between +(select abs(+cast(avg(13) AS integer)) from t1)*19 and t1.e),t1.e-11-t1.e+( -t1.e*13)*t1.e | e*t1.b)*f)) end FROM t1 WHERE (abs(t1.d)/abs(t1.c)) not between +13 and t1.c}
+} {0}
+do_test randexpr-2.2499 {
+  db eval {SELECT case t1.d when e then t1.d else (abs(e-b)/abs(t1.c+a*a | 17+19*coalesce((select 17 from t1 where 11 between +(select abs(+cast(avg(13) AS integer)) from t1)*19 and t1.e),t1.e-11-t1.e+( -t1.e*13)*t1.e | e*t1.b)*f)) end FROM t1 WHERE NOT ((abs(t1.d)/abs(t1.c)) not between +13 and t1.c)}
+} {}
+do_test randexpr-2.2500 {
+  db eval {SELECT case t1.d when e then t1.d else (abs(e-b)/abs(t1.c+a*a & 17+19*coalesce((select 17 from t1 where 11 between +(select abs(+cast(avg(13) AS integer)) from t1)*19 and t1.e),t1.e-11-t1.e+( -t1.e*13)*t1.e & e*t1.b)*f)) end FROM t1 WHERE (abs(t1.d)/abs(t1.c)) not between +13 and t1.c}
+} {18}
+do_test randexpr-2.2501 {
+  db eval {SELECT coalesce((select coalesce((select t1.e from t1 where case when c+a in (select t1.f from t1 union select 13 from t1) then c when not not exists(select 1 from t1 where d>= -11) then t1.d else  -t1.f end between b and 11 or d not between e and 11), -f)+e+ -11*17 from t1 where not exists(select 1 from t1 where exists(select 1 from t1 where t1.e in (select ~min(e) from t1 union select case case count(distinct f) | min(19)+min(a) when count(*) then max( -t1.c) else max(17) end when (max(t1.c)) then min(11) else min(t1.c) end from t1)) or d=a)),t1.e) FROM t1 WHERE +t1.e<~case when t1.e in (select (abs(c)/abs(~t1.d)) from t1 union select a from t1) then coalesce((select e from t1 where t1.d+ -coalesce((select max(11-t1.e*b) from t1 where 19 in (11,t1.b,e)),11)*t1.e+19 in (select t1.d from t1 union select  -t1.d from t1)),17) | t1.e+e when t1.f in (17,f,f) then t1.b else 17 end*13}
+} {}
+do_test randexpr-2.2502 {
+  db eval {SELECT coalesce((select coalesce((select t1.e from t1 where case when c+a in (select t1.f from t1 union select 13 from t1) then c when not not exists(select 1 from t1 where d>= -11) then t1.d else  -t1.f end between b and 11 or d not between e and 11), -f)+e+ -11*17 from t1 where not exists(select 1 from t1 where exists(select 1 from t1 where t1.e in (select ~min(e) from t1 union select case case count(distinct f) | min(19)+min(a) when count(*) then max( -t1.c) else max(17) end when (max(t1.c)) then min(11) else min(t1.c) end from t1)) or d=a)),t1.e) FROM t1 WHERE NOT (+t1.e<~case when t1.e in (select (abs(c)/abs(~t1.d)) from t1 union select a from t1) then coalesce((select e from t1 where t1.d+ -coalesce((select max(11-t1.e*b) from t1 where 19 in (11,t1.b,e)),11)*t1.e+19 in (select t1.d from t1 union select  -t1.d from t1)),17) | t1.e+e when t1.f in (17,f,f) then t1.b else 17 end*13)}
+} {813}
+do_test randexpr-2.2503 {
+  db eval {SELECT coalesce((select coalesce((select t1.e from t1 where case when c+a in (select t1.f from t1 union select 13 from t1) then c when not not exists(select 1 from t1 where d>= -11) then t1.d else  -t1.f end between b and 11 or d not between e and 11), -f)+e+ -11*17 from t1 where not exists(select 1 from t1 where exists(select 1 from t1 where t1.e in (select ~min(e) from t1 union select case case count(distinct f) & min(19)+min(a) when count(*) then max( -t1.c) else max(17) end when (max(t1.c)) then min(11) else min(t1.c) end from t1)) or d=a)),t1.e) FROM t1 WHERE NOT (+t1.e<~case when t1.e in (select (abs(c)/abs(~t1.d)) from t1 union select a from t1) then coalesce((select e from t1 where t1.d+ -coalesce((select max(11-t1.e*b) from t1 where 19 in (11,t1.b,e)),11)*t1.e+19 in (select t1.d from t1 union select  -t1.d from t1)),17) | t1.e+e when t1.f in (17,f,f) then t1.b else 17 end*13)}
+} {813}
+do_test randexpr-2.2504 {
+  db eval {SELECT case when ((t1.f)+coalesce((select coalesce((select ++d from t1 where not t1.d not between e and e),19) from t1 where t1.d<>19),a)-c*a not between c and t1.a and not exists(select 1 from t1 where 17<=a) and exists(select 1 from t1 where not e in (select t1.b from t1 union select t1.e from t1)) and t1.f between 11 and t1.d) or e between c and 13 then t1.a+e when t1.a not between a and d then 17 else t1.a end FROM t1 WHERE (a)+t1.f>t1.e+a}
+} {100}
+do_test randexpr-2.2505 {
+  db eval {SELECT case when ((t1.f)+coalesce((select coalesce((select ++d from t1 where not t1.d not between e and e),19) from t1 where t1.d<>19),a)-c*a not between c and t1.a and not exists(select 1 from t1 where 17<=a) and exists(select 1 from t1 where not e in (select t1.b from t1 union select t1.e from t1)) and t1.f between 11 and t1.d) or e between c and 13 then t1.a+e when t1.a not between a and d then 17 else t1.a end FROM t1 WHERE NOT ((a)+t1.f>t1.e+a)}
+} {}
+do_test randexpr-2.2506 {
+  db eval {SELECT b*b+case d*d when t1.f then c else coalesce((select coalesce((select max(f) from t1 where (d=t1.b or case when e=11 then t1.a else f end<>t1.d and exists(select 1 from t1 where f not between t1.c and a))),(select count(distinct f) from t1)+case when t1.b between a and (19) and t1.e=a then 13 else 17 end) from t1 where d>=11),f)*t1.e end-11-a- -(11) FROM t1 WHERE (c<19)}
+} {}
+do_test randexpr-2.2507 {
+  db eval {SELECT b*b+case d*d when t1.f then c else coalesce((select coalesce((select max(f) from t1 where (d=t1.b or case when e=11 then t1.a else f end<>t1.d and exists(select 1 from t1 where f not between t1.c and a))),(select count(distinct f) from t1)+case when t1.b between a and (19) and t1.e=a then 13 else 17 end) from t1 where d>=11),f)*t1.e end-11-a- -(11) FROM t1 WHERE NOT ((c<19))}
+} {339900}
+do_test randexpr-2.2508 {
+  db eval {SELECT coalesce((select max(c) from t1 where ((d between t1.c and c)) and b not between t1.a and a or f+c in (d | +f*d*coalesce((select case when not  -t1.c<t1.b then t1.b when  -t1.a between t1.a and e then 11 else c end from t1 where (t1.d>=a)),e)*f,b,11) or  -19>=t1.c and t1.a in (b,t1.f,c)),13) FROM t1 WHERE t1.c in (select count(distinct t1.a)*max(d) | +case (~ -~+count(distinct 13)*min(19) | (max(e))+ -(count(*))) when count(distinct t1.a) then max(d) else count(*) end+min(t1.c) from t1 union select min(e) from t1) and 17=t1.c-t1.d or t1.c-d not in ( -c,(abs(case a when t1.a then 13 else e end+f)/abs(e)),t1.a)}
+} {13}
+do_test randexpr-2.2509 {
+  db eval {SELECT coalesce((select max(c) from t1 where ((d between t1.c and c)) and b not between t1.a and a or f+c in (d | +f*d*coalesce((select case when not  -t1.c<t1.b then t1.b when  -t1.a between t1.a and e then 11 else c end from t1 where (t1.d>=a)),e)*f,b,11) or  -19>=t1.c and t1.a in (b,t1.f,c)),13) FROM t1 WHERE NOT (t1.c in (select count(distinct t1.a)*max(d) | +case (~ -~+count(distinct 13)*min(19) | (max(e))+ -(count(*))) when count(distinct t1.a) then max(d) else count(*) end+min(t1.c) from t1 union select min(e) from t1) and 17=t1.c-t1.d or t1.c-d not in ( -c,(abs(case a when t1.a then 13 else e end+f)/abs(e)),t1.a))}
+} {}
+do_test randexpr-2.2510 {
+  db eval {SELECT coalesce((select max(c) from t1 where ((d between t1.c and c)) and b not between t1.a and a or f+c in (d & +f*d*coalesce((select case when not  -t1.c<t1.b then t1.b when  -t1.a between t1.a and e then 11 else c end from t1 where (t1.d>=a)),e)*f,b,11) or  -19>=t1.c and t1.a in (b,t1.f,c)),13) FROM t1 WHERE t1.c in (select count(distinct t1.a)*max(d) | +case (~ -~+count(distinct 13)*min(19) | (max(e))+ -(count(*))) when count(distinct t1.a) then max(d) else count(*) end+min(t1.c) from t1 union select min(e) from t1) and 17=t1.c-t1.d or t1.c-d not in ( -c,(abs(case a when t1.a then 13 else e end+f)/abs(e)),t1.a)}
+} {13}
+do_test randexpr-2.2511 {
+  db eval {SELECT case case when not (abs(t1.d)/abs(17))>=t1.a+((19))+ -e-b or 11 between t1.a and 11 then 13 when t1.f in (select case count(distinct t1.d) when abs( -+(cast(avg(t1.c) AS integer)))*count(distinct (t1.e)) then max(19) else case count(distinct t1.a) when cast(avg(19) AS integer) then count(*) else cast(avg((t1.a)) AS integer) end end from t1 union select max(13) from t1) then  -t1.b else t1.f end when c then  -c else b end FROM t1 WHERE not exists(select 1 from t1 where not exists(select 1 from t1 where 13>=f))}
+} {}
+do_test randexpr-2.2512 {
+  db eval {SELECT case case when not (abs(t1.d)/abs(17))>=t1.a+((19))+ -e-b or 11 between t1.a and 11 then 13 when t1.f in (select case count(distinct t1.d) when abs( -+(cast(avg(t1.c) AS integer)))*count(distinct (t1.e)) then max(19) else case count(distinct t1.a) when cast(avg(19) AS integer) then count(*) else cast(avg((t1.a)) AS integer) end end from t1 union select max(13) from t1) then  -t1.b else t1.f end when c then  -c else b end FROM t1 WHERE NOT (not exists(select 1 from t1 where not exists(select 1 from t1 where 13>=f)))}
+} {200}
+do_test randexpr-2.2513 {
+  db eval {SELECT 11-(abs( -(select ((count(*)-(abs( -min(~19)))+case min(case when not exists(select 1 from t1 where (exists(select 1 from t1 where 17>f) or t1.c>=a)) then d else 11 end) | abs(cast(avg(19) AS integer)) when (count(distinct t1.f*19))-+ -( -count(*)) then ((cast(avg(t1.d) AS integer))) else cast(avg(t1.a) AS integer) end*count(distinct t1.d))+cast(avg(c) AS integer))-max(17) from t1)-17)/abs(t1.f)) FROM t1 WHERE  - - -f+d in (select 19 from t1 union select t1.b from t1) or ((abs(a)/abs( -11+case when t1.e>=( -f) | d then ~t1.a when coalesce((select t1.d from t1 where e not in (e-(d)+a,e,t1.b)),a)<>t1.b then a else  -t1.c end)))<=t1.e and t1.e in (13,t1.a,t1.f)}
+} {}
+do_test randexpr-2.2514 {
+  db eval {SELECT 11-(abs( -(select ((count(*)-(abs( -min(~19)))+case min(case when not exists(select 1 from t1 where (exists(select 1 from t1 where 17>f) or t1.c>=a)) then d else 11 end) | abs(cast(avg(19) AS integer)) when (count(distinct t1.f*19))-+ -( -count(*)) then ((cast(avg(t1.d) AS integer))) else cast(avg(t1.a) AS integer) end*count(distinct t1.d))+cast(avg(c) AS integer))-max(17) from t1)-17)/abs(t1.f)) FROM t1 WHERE NOT ( - - -f+d in (select 19 from t1 union select t1.b from t1) or ((abs(a)/abs( -11+case when t1.e>=( -f) | d then ~t1.a when coalesce((select t1.d from t1 where e not in (e-(d)+a,e,t1.b)),a)<>t1.b then a else  -t1.c end)))<=t1.e and t1.e in (13,t1.a,t1.f))}
+} {11}
+do_test randexpr-2.2515 {
+  db eval {SELECT 11-(abs( -(select ((count(*)-(abs( -min(~19)))+case min(case when not exists(select 1 from t1 where (exists(select 1 from t1 where 17>f) or t1.c>=a)) then d else 11 end) & abs(cast(avg(19) AS integer)) when (count(distinct t1.f*19))-+ -( -count(*)) then ((cast(avg(t1.d) AS integer))) else cast(avg(t1.a) AS integer) end*count(distinct t1.d))+cast(avg(c) AS integer))-max(17) from t1)-17)/abs(t1.f)) FROM t1 WHERE NOT ( - - -f+d in (select 19 from t1 union select t1.b from t1) or ((abs(a)/abs( -11+case when t1.e>=( -f) | d then ~t1.a when coalesce((select t1.d from t1 where e not in (e-(d)+a,e,t1.b)),a)<>t1.b then a else  -t1.c end)))<=t1.e and t1.e in (13,t1.a,t1.f))}
+} {11}
+do_test randexpr-2.2516 {
+  db eval {SELECT coalesce((select ~11*b from t1 where (not exists(select 1 from t1 where case d when t1.b then t1.b else d end not between b and t1.b and f in (select ~count(*) from t1 union select count(distinct coalesce((select max( -c+(abs(coalesce((select max(t1.a) from t1 where not exists(select 1 from t1 where d>a)),t1.b)-17)/abs((b)))*(a)) from t1 where t1.f>b),f)) from t1) or t1.e not in ((d),c,c)))),c)*17+t1.c FROM t1 WHERE coalesce((select 17*case when exists(select 1 from t1 where coalesce((select t1.e from t1 where f<>e and e not between c and 11),d) in (select 11 from t1 union select c from t1)) then t1.b when t1.a between t1.f and 19 then t1.d else t1.c end*f | 19 from t1 where a between t1.c and b or t1.e in ((b),b,t1.f)),17) in (select ( -~case case (((count(*)))) when max(e) then max(e) else cast(avg(c) AS integer) end when min(17) then cast(avg(13) AS integer) else cast(avg(t1.b) AS integer) end+ -count(*)* -count(*))+min(d) from t1 union select count(distinct t1.e) from t1)}
+} {}
+do_test randexpr-2.2517 {
+  db eval {SELECT coalesce((select ~11*b from t1 where (not exists(select 1 from t1 where case d when t1.b then t1.b else d end not between b and t1.b and f in (select ~count(*) from t1 union select count(distinct coalesce((select max( -c+(abs(coalesce((select max(t1.a) from t1 where not exists(select 1 from t1 where d>a)),t1.b)-17)/abs((b)))*(a)) from t1 where t1.f>b),f)) from t1) or t1.e not in ((d),c,c)))),c)*17+t1.c FROM t1 WHERE NOT (coalesce((select 17*case when exists(select 1 from t1 where coalesce((select t1.e from t1 where f<>e and e not between c and 11),d) in (select 11 from t1 union select c from t1)) then t1.b when t1.a between t1.f and 19 then t1.d else t1.c end*f | 19 from t1 where a between t1.c and b or t1.e in ((b),b,t1.f)),17) in (select ( -~case case (((count(*)))) when max(e) then max(e) else cast(avg(c) AS integer) end when min(17) then cast(avg(13) AS integer) else cast(avg(t1.b) AS integer) end+ -count(*)* -count(*))+min(d) from t1 union select count(distinct t1.e) from t1))}
+} {5400}
+do_test randexpr-2.2518 {
+  db eval {SELECT (abs(case when not +c<>coalesce((select max(19) from t1 where not (abs(c)/abs(a))*a-t1.a>=case when (exists(select 1 from t1 where d=11)) then t1.a*~b else case when b in (select (f) from t1 union select 17 from t1) or not 17 not between f and  -b then t1.a when f<t1.e then a else t1.c end end),t1.c) then case when 19 between 13 and a then 13 else t1.f end else 11 end)/abs(a)) FROM t1 WHERE (t1.f in (select case case ~abs(case case  -cast(avg((select +max((select min(c) from t1)) from t1)) AS integer) when  -abs( -max(f)*count(*)) then ~case max(c)-count(distinct (t1.f))-(cast(avg(t1.d) AS integer)) when ( -cast(avg( -11) AS integer)) then min( -13) else count(*) end else  -cast(avg(f) AS integer) end when ((min(e))) then min(t1.f) else (count(distinct 17)) end | cast(avg(11) AS integer)-cast(avg(13) AS integer)) when count(*) then count(*) else max(b) end when count(distinct 17) then  -count(distinct t1.d) else count(distinct  -e) end*min(t1.c) from t1 union select count(distinct 17) from t1))}
+} {}
+do_test randexpr-2.2519 {
+  db eval {SELECT (abs(case when not +c<>coalesce((select max(19) from t1 where not (abs(c)/abs(a))*a-t1.a>=case when (exists(select 1 from t1 where d=11)) then t1.a*~b else case when b in (select (f) from t1 union select 17 from t1) or not 17 not between f and  -b then t1.a when f<t1.e then a else t1.c end end),t1.c) then case when 19 between 13 and a then 13 else t1.f end else 11 end)/abs(a)) FROM t1 WHERE NOT ((t1.f in (select case case ~abs(case case  -cast(avg((select +max((select min(c) from t1)) from t1)) AS integer) when  -abs( -max(f)*count(*)) then ~case max(c)-count(distinct (t1.f))-(cast(avg(t1.d) AS integer)) when ( -cast(avg( -11) AS integer)) then min( -13) else count(*) end else  -cast(avg(f) AS integer) end when ((min(e))) then min(t1.f) else (count(distinct 17)) end | cast(avg(11) AS integer)-cast(avg(13) AS integer)) when count(*) then count(*) else max(b) end when count(distinct 17) then  -count(distinct t1.d) else count(distinct  -e) end*min(t1.c) from t1 union select count(distinct 17) from t1)))}
+} {0}
+do_test randexpr-2.2520 {
+  db eval {SELECT ~case when case 11*17 when f then t1.a else t1.e end in ( -coalesce((select max(case coalesce((select t1.f from t1 where exists(select 1 from t1 where t1.c in (case t1.e when  -d then c else (d) end,t1.e,t1.a))), -t1.c) when 19 then 11 else t1.e end) from t1 where t1.e in (19, -t1.b,a)),17)+f-11,17,19) then a when ((d<d)) then 11 else  -t1.e end FROM t1 WHERE not e>=t1.b and (b not in (c,t1.e,t1.a))}
+} {}
+do_test randexpr-2.2521 {
+  db eval {SELECT ~case when case 11*17 when f then t1.a else t1.e end in ( -coalesce((select max(case coalesce((select t1.f from t1 where exists(select 1 from t1 where t1.c in (case t1.e when  -d then c else (d) end,t1.e,t1.a))), -t1.c) when 19 then 11 else t1.e end) from t1 where t1.e in (19, -t1.b,a)),17)+f-11,17,19) then a when ((d<d)) then 11 else  -t1.e end FROM t1 WHERE NOT (not e>=t1.b and (b not in (c,t1.e,t1.a)))}
+} {499}
+do_test randexpr-2.2522 {
+  db eval {SELECT (abs(case f when case when d+f between e and t1.f then f when coalesce((select max(t1.f) from t1 where c in (select t1.a from t1 union select case when a not between t1.c and 13 then a else t1.c end from t1) or f*f not in (case when (11<=d) then case when 13<t1.a then (t1.d) else t1.a end else t1.a end-t1.d,17,f) or a>= -d),b)<=t1.b then t1.e else 13 end then f else t1.b end)/abs(f)) FROM t1 WHERE c between c and coalesce((select max(f) from t1 where b in (select count(*) from t1 union select max(13) from t1)),19)}
+} {}
+do_test randexpr-2.2523 {
+  db eval {SELECT (abs(case f when case when d+f between e and t1.f then f when coalesce((select max(t1.f) from t1 where c in (select t1.a from t1 union select case when a not between t1.c and 13 then a else t1.c end from t1) or f*f not in (case when (11<=d) then case when 13<t1.a then (t1.d) else t1.a end else t1.a end-t1.d,17,f) or a>= -d),b)<=t1.b then t1.e else 13 end then f else t1.b end)/abs(f)) FROM t1 WHERE NOT (c between c and coalesce((select max(f) from t1 where b in (select count(*) from t1 union select max(13) from t1)),19))}
+} {0}
+do_test randexpr-2.2524 {
+  db eval {SELECT d++11*a+coalesce((select max(t1.a) from t1 where 17+case when (19>=a) then t1.b when f>=f then  -(select cast(avg(t1.e-t1.f*t1.a) AS integer) from t1)-f else t1.f end*a+f*t1.a not in (t1.e,e,13)),17)- -t1.b-a-c*19 FROM t1 WHERE f*t1.a*t1.b>17 and case when 13 not in (19, -(select count(*) from t1),coalesce((select max(coalesce((select max(t1.a) from t1 where  -coalesce((select max(case when not t1.f<=(t1.d) then t1.a else (a) end) from t1 where t1.f>c or 13<(t1.a)),17)>=t1.a or not exists(select 1 from t1 where  - -c not in (a,t1.b,t1.e))),t1.e)) from t1 where (f not in (b,f,f))),c)) then (t1.e) when t1.a<>e then e else b end- -t1.f not in (a, -c,(c))}
+} {-4000}
+do_test randexpr-2.2525 {
+  db eval {SELECT d++11*a+coalesce((select max(t1.a) from t1 where 17+case when (19>=a) then t1.b when f>=f then  -(select cast(avg(t1.e-t1.f*t1.a) AS integer) from t1)-f else t1.f end*a+f*t1.a not in (t1.e,e,13)),17)- -t1.b-a-c*19 FROM t1 WHERE NOT (f*t1.a*t1.b>17 and case when 13 not in (19, -(select count(*) from t1),coalesce((select max(coalesce((select max(t1.a) from t1 where  -coalesce((select max(case when not t1.f<=(t1.d) then t1.a else (a) end) from t1 where t1.f>c or 13<(t1.a)),17)>=t1.a or not exists(select 1 from t1 where  - -c not in (a,t1.b,t1.e))),t1.e)) from t1 where (f not in (b,f,f))),c)) then (t1.e) when t1.a<>e then e else b end- -t1.f not in (a, -c,(c)))}
+} {}
+do_test randexpr-2.2526 {
+  db eval {SELECT coalesce((select (a) from t1 where 11-11+t1.b<=17-b),case when case when not t1.e*f>= -t1.f and a in (11,t1.c,t1.b) or 19>e then (select case min((f)-f) when cast(avg(t1.a) AS integer) then (cast(avg(17) AS integer)) else ((cast(avg((13)) AS integer))) end from t1) when 13 not between f and t1.c then (abs(e)/abs(17)) else t1.e end |  -17<=f then b when f<19 or t1.b<=t1.d then f else f end) FROM t1 WHERE  -f | t1.f*c-t1.a | t1.c+11*case ~17 when  -coalesce((select max(t1.e) from t1 where 13*(17)>=11),t1.a) then case case when (t1.b>= -t1.b) then t1.f when t1.f<a or 11>a and t1.e in (e,(t1.d),19) then t1.f else t1.c end when a then t1.a else t1.e end else a end*t1.a-13<c}
+} {200}
+do_test randexpr-2.2527 {
+  db eval {SELECT coalesce((select (a) from t1 where 11-11+t1.b<=17-b),case when case when not t1.e*f>= -t1.f and a in (11,t1.c,t1.b) or 19>e then (select case min((f)-f) when cast(avg(t1.a) AS integer) then (cast(avg(17) AS integer)) else ((cast(avg((13)) AS integer))) end from t1) when 13 not between f and t1.c then (abs(e)/abs(17)) else t1.e end |  -17<=f then b when f<19 or t1.b<=t1.d then f else f end) FROM t1 WHERE NOT ( -f | t1.f*c-t1.a | t1.c+11*case ~17 when  -coalesce((select max(t1.e) from t1 where 13*(17)>=11),t1.a) then case case when (t1.b>= -t1.b) then t1.f when t1.f<a or 11>a and t1.e in (e,(t1.d),19) then t1.f else t1.c end when a then t1.a else t1.e end else a end*t1.a-13<c)}
+} {}
+do_test randexpr-2.2528 {
+  db eval {SELECT coalesce((select (a) from t1 where 11-11+t1.b<=17-b),case when case when not t1.e*f>= -t1.f and a in (11,t1.c,t1.b) or 19>e then (select case min((f)-f) when cast(avg(t1.a) AS integer) then (cast(avg(17) AS integer)) else ((cast(avg((13)) AS integer))) end from t1) when 13 not between f and t1.c then (abs(e)/abs(17)) else t1.e end &  -17<=f then b when f<19 or t1.b<=t1.d then f else f end) FROM t1 WHERE  -f | t1.f*c-t1.a | t1.c+11*case ~17 when  -coalesce((select max(t1.e) from t1 where 13*(17)>=11),t1.a) then case case when (t1.b>= -t1.b) then t1.f when t1.f<a or 11>a and t1.e in (e,(t1.d),19) then t1.f else t1.c end when a then t1.a else t1.e end else a end*t1.a-13<c}
+} {200}
+do_test randexpr-2.2529 {
+  db eval {SELECT (abs(case when exists(select 1 from t1 where b not between ~case when (t1.e-(c-t1.c) | t1.a) in (select abs(~((min(t1.f) | cast(avg(c) AS integer))*(min(b))-count(distinct 19)*min(e)) |  -((count(*))))-cast(avg(d) AS integer) from t1 union select  -count(distinct t1.a) from t1) or f>a then 11 else e end*11 and t1.e) then t1.e when  -17<11 then 17 else t1.a end)/abs(a)) FROM t1 WHERE c<=19}
+} {}
+do_test randexpr-2.2530 {
+  db eval {SELECT (abs(case when exists(select 1 from t1 where b not between ~case when (t1.e-(c-t1.c) | t1.a) in (select abs(~((min(t1.f) | cast(avg(c) AS integer))*(min(b))-count(distinct 19)*min(e)) |  -((count(*))))-cast(avg(d) AS integer) from t1 union select  -count(distinct t1.a) from t1) or f>a then 11 else e end*11 and t1.e) then t1.e when  -17<11 then 17 else t1.a end)/abs(a)) FROM t1 WHERE NOT (c<=19)}
+} {0}
+do_test randexpr-2.2531 {
+  db eval {SELECT (abs(case when exists(select 1 from t1 where b not between ~case when (t1.e-(c-t1.c) & t1.a) in (select abs(~((min(t1.f) & cast(avg(c) AS integer))*(min(b))-count(distinct 19)*min(e)) &  -((count(*))))-cast(avg(d) AS integer) from t1 union select  -count(distinct t1.a) from t1) or f>a then 11 else e end*11 and t1.e) then t1.e when  -17<11 then 17 else t1.a end)/abs(a)) FROM t1 WHERE NOT (c<=19)}
+} {0}
+do_test randexpr-2.2532 {
+  db eval {SELECT case when t1.e-19 in (case (abs(t1.a*+~c*coalesce((select c from t1 where ~ -(select abs(case cast(avg(13) AS integer) when  - -cast(avg(f) AS integer) then count(distinct t1.d) else (count(*)) end+count(*)) from t1) not between (abs(a | t1.a)/abs(t1.c)) and 19),t1.b)-c*17*(t1.f))/abs(d)) when 13 then 19 else t1.b end,(b),17) then 19 when (11)>=t1.b then b else b end*11 FROM t1 WHERE (case 11 when case t1.e when coalesce((select a from t1 where t1.a<t1.e),t1.e | case when 13 in (coalesce((select max( -b) from t1 where d not between (t1.a) and t1.e and t1.e>=t1.a),t1.f),d,13) then c when 11 between t1.b and 17 then d else 19 end) then f else 19 end then t1.d else c end< -c) and a not in (11,c,11) or 11<>e or exists(select 1 from t1 where b<17)}
+} {2200}
+do_test randexpr-2.2533 {
+  db eval {SELECT case when t1.e-19 in (case (abs(t1.a*+~c*coalesce((select c from t1 where ~ -(select abs(case cast(avg(13) AS integer) when  - -cast(avg(f) AS integer) then count(distinct t1.d) else (count(*)) end+count(*)) from t1) not between (abs(a | t1.a)/abs(t1.c)) and 19),t1.b)-c*17*(t1.f))/abs(d)) when 13 then 19 else t1.b end,(b),17) then 19 when (11)>=t1.b then b else b end*11 FROM t1 WHERE NOT ((case 11 when case t1.e when coalesce((select a from t1 where t1.a<t1.e),t1.e | case when 13 in (coalesce((select max( -b) from t1 where d not between (t1.a) and t1.e and t1.e>=t1.a),t1.f),d,13) then c when 11 between t1.b and 17 then d else 19 end) then f else 19 end then t1.d else c end< -c) and a not in (11,c,11) or 11<>e or exists(select 1 from t1 where b<17))}
+} {}
+do_test randexpr-2.2534 {
+  db eval {SELECT case when t1.e-19 in (case (abs(t1.a*+~c*coalesce((select c from t1 where ~ -(select abs(case cast(avg(13) AS integer) when  - -cast(avg(f) AS integer) then count(distinct t1.d) else (count(*)) end+count(*)) from t1) not between (abs(a & t1.a)/abs(t1.c)) and 19),t1.b)-c*17*(t1.f))/abs(d)) when 13 then 19 else t1.b end,(b),17) then 19 when (11)>=t1.b then b else b end*11 FROM t1 WHERE (case 11 when case t1.e when coalesce((select a from t1 where t1.a<t1.e),t1.e | case when 13 in (coalesce((select max( -b) from t1 where d not between (t1.a) and t1.e and t1.e>=t1.a),t1.f),d,13) then c when 11 between t1.b and 17 then d else 19 end) then f else 19 end then t1.d else c end< -c) and a not in (11,c,11) or 11<>e or exists(select 1 from t1 where b<17)}
+} {2200}
+do_test randexpr-2.2535 {
+  db eval {SELECT t1.b*case when (abs(t1.c+case when d not in (a,case when b=(t1.a) then (e) when b not between f and t1.c then t1.b else t1.e end, -11) then t1.d when not exists(select 1 from t1 where 19 not between (a) and a or t1.c>d) then d else b end+t1.a+13-19+d)/abs(t1.d))> -t1.f then t1.a when t1.d in (select d from t1 union select c from t1) or 13 not between d and t1.f then t1.b else e end+ - -a FROM t1 WHERE t1.f<=11}
+} {}
+do_test randexpr-2.2536 {
+  db eval {SELECT t1.b*case when (abs(t1.c+case when d not in (a,case when b=(t1.a) then (e) when b not between f and t1.c then t1.b else t1.e end, -11) then t1.d when not exists(select 1 from t1 where 19 not between (a) and a or t1.c>d) then d else b end+t1.a+13-19+d)/abs(t1.d))> -t1.f then t1.a when t1.d in (select d from t1 union select c from t1) or 13 not between d and t1.f then t1.b else e end+ - -a FROM t1 WHERE NOT (t1.f<=11)}
+} {20100}
+do_test randexpr-2.2537 {
+  db eval {SELECT coalesce((select max(coalesce((select e+t1.c from t1 where f*11+coalesce((select max(17) from t1 where not ~case a when t1.f+13*e-(11)*t1.f then d else a end>d and (a not between t1.c and t1.c)),t1.d)- -f-b+11=b),19)-t1.f) from t1 where exists(select 1 from t1 where 19<>11)),c) FROM t1 WHERE case when 11 in (select  -abs(abs( - -(cast(avg(+11-c) AS integer)+cast(avg(~a) AS integer))*max(11))+cast(avg(d) AS integer)-cast(avg(e) AS integer)-((max(t1.e))))+count(*) from t1 union select ( -count(*)) from t1) then t1.a when e>d then c- - -t1.a else 19 end in (select count(distinct  -f) from t1 union select count(distinct d) from t1) and not e<17}
+} {}
+do_test randexpr-2.2538 {
+  db eval {SELECT coalesce((select max(coalesce((select e+t1.c from t1 where f*11+coalesce((select max(17) from t1 where not ~case a when t1.f+13*e-(11)*t1.f then d else a end>d and (a not between t1.c and t1.c)),t1.d)- -f-b+11=b),19)-t1.f) from t1 where exists(select 1 from t1 where 19<>11)),c) FROM t1 WHERE NOT (case when 11 in (select  -abs(abs( - -(cast(avg(+11-c) AS integer)+cast(avg(~a) AS integer))*max(11))+cast(avg(d) AS integer)-cast(avg(e) AS integer)-((max(t1.e))))+count(*) from t1 union select ( -count(*)) from t1) then t1.a when e>d then c- - -t1.a else 19 end in (select count(distinct  -f) from t1 union select count(distinct d) from t1) and not e<17)}
+} {-581}
+do_test randexpr-2.2539 {
+  db eval {SELECT case when (coalesce((select max(a*case when 17+f>f-t1.d*t1.f then t1.d when t1.c not between t1.e and d then 19 else (c) end) from t1 where not t1.d not between  - -17 and 19),t1.a) in (select min((13)) from t1 union select ~(abs(count(distinct t1.a))*((( -max( -t1.f)))+max( -t1.c) | count(*)))-cast(avg(11) AS integer) from t1)) then c- - -d when t1.d>=d then d else 13 end FROM t1 WHERE ((abs(t1.a-t1.a*t1.d*coalesce((select coalesce((select max(11) from t1 where exists(select 1 from t1 where 11+t1.d |  -t1.c-case when b+d in (select count(*) from t1 union select max(17)+ -count(distinct t1.d) from t1) then t1.c else d end-a | 13<>c)),t1.c) from t1 where 13 not in (d,t1.a,f) and 19=t1.f),(13))+(t1.d))/abs(t1.c)) between t1.f and t1.d)}
+} {}
+do_test randexpr-2.2540 {
+  db eval {SELECT case when (coalesce((select max(a*case when 17+f>f-t1.d*t1.f then t1.d when t1.c not between t1.e and d then 19 else (c) end) from t1 where not t1.d not between  - -17 and 19),t1.a) in (select min((13)) from t1 union select ~(abs(count(distinct t1.a))*((( -max( -t1.f)))+max( -t1.c) | count(*)))-cast(avg(11) AS integer) from t1)) then c- - -d when t1.d>=d then d else 13 end FROM t1 WHERE NOT (((abs(t1.a-t1.a*t1.d*coalesce((select coalesce((select max(11) from t1 where exists(select 1 from t1 where 11+t1.d |  -t1.c-case when b+d in (select count(*) from t1 union select max(17)+ -count(distinct t1.d) from t1) then t1.c else d end-a | 13<>c)),t1.c) from t1 where 13 not in (d,t1.a,f) and 19=t1.f),(13))+(t1.d))/abs(t1.c)) between t1.f and t1.d))}
+} {400}
+do_test randexpr-2.2541 {
+  db eval {SELECT case when (coalesce((select max(a*case when 17+f>f-t1.d*t1.f then t1.d when t1.c not between t1.e and d then 19 else (c) end) from t1 where not t1.d not between  - -17 and 19),t1.a) in (select min((13)) from t1 union select ~(abs(count(distinct t1.a))*((( -max( -t1.f)))+max( -t1.c) & count(*)))-cast(avg(11) AS integer) from t1)) then c- - -d when t1.d>=d then d else 13 end FROM t1 WHERE NOT (((abs(t1.a-t1.a*t1.d*coalesce((select coalesce((select max(11) from t1 where exists(select 1 from t1 where 11+t1.d |  -t1.c-case when b+d in (select count(*) from t1 union select max(17)+ -count(distinct t1.d) from t1) then t1.c else d end-a | 13<>c)),t1.c) from t1 where 13 not in (d,t1.a,f) and 19=t1.f),(13))+(t1.d))/abs(t1.c)) between t1.f and t1.d))}
+} {400}
+do_test randexpr-2.2542 {
+  db eval {SELECT case when f | c>t1.d-case when (abs(t1.b-t1.d*f)/abs(c))=t1.e then 17 when not exists(select 1 from t1 where t1.b=(11) or c not in (13,17,b)) or a<e then t1.f else 19 end+b-t1.f and t1.b between t1.b and t1.f and e in (t1.f,b,b) then (select cast(avg(e) AS integer)-~ -~count(*) from t1) else 11 end FROM t1 WHERE e<=case when (case when 17<>a then t1.c when not 11<(f) then case when t1.c= -b then c else 11 end else e end | f>=t1.b and b not between  -(t1.e) and f) then 17 when f in (select  -count(distinct t1.e) from t1 union select case min(f) when case cast(avg( -t1.b) AS integer) when cast(avg(e) AS integer) then  -max(e) else min(t1.b) end then count(*) else (cast(avg(t1.e) AS integer)) end from t1) then case c when e then t1.f else 13 end else t1.d end}
+} {}
+do_test randexpr-2.2543 {
+  db eval {SELECT case when f | c>t1.d-case when (abs(t1.b-t1.d*f)/abs(c))=t1.e then 17 when not exists(select 1 from t1 where t1.b=(11) or c not in (13,17,b)) or a<e then t1.f else 19 end+b-t1.f and t1.b between t1.b and t1.f and e in (t1.f,b,b) then (select cast(avg(e) AS integer)-~ -~count(*) from t1) else 11 end FROM t1 WHERE NOT (e<=case when (case when 17<>a then t1.c when not 11<(f) then case when t1.c= -b then c else 11 end else e end | f>=t1.b and b not between  -(t1.e) and f) then 17 when f in (select  -count(distinct t1.e) from t1 union select case min(f) when case cast(avg( -t1.b) AS integer) when cast(avg(e) AS integer) then  -max(e) else min(t1.b) end then count(*) else (cast(avg(t1.e) AS integer)) end from t1) then case c when e then t1.f else 13 end else t1.d end)}
+} {11}
+do_test randexpr-2.2544 {
+  db eval {SELECT case when f & c>t1.d-case when (abs(t1.b-t1.d*f)/abs(c))=t1.e then 17 when not exists(select 1 from t1 where t1.b=(11) or c not in (13,17,b)) or a<e then t1.f else 19 end+b-t1.f and t1.b between t1.b and t1.f and e in (t1.f,b,b) then (select cast(avg(e) AS integer)-~ -~count(*) from t1) else 11 end FROM t1 WHERE NOT (e<=case when (case when 17<>a then t1.c when not 11<(f) then case when t1.c= -b then c else 11 end else e end | f>=t1.b and b not between  -(t1.e) and f) then 17 when f in (select  -count(distinct t1.e) from t1 union select case min(f) when case cast(avg( -t1.b) AS integer) when cast(avg(e) AS integer) then  -max(e) else min(t1.b) end then count(*) else (cast(avg(t1.e) AS integer)) end from t1) then case c when e then t1.f else 13 end else t1.d end)}
+} {11}
+do_test randexpr-2.2545 {
+  db eval {SELECT 17+coalesce((select max(19) from t1 where 11 in (select (abs((abs(~(case +b+17 when t1.e*t1.b then 17 else case when t1.b+17+d*a in (select (~count(distinct a)) from t1 union select case cast(avg(t1.e) AS integer) when count(*) then count(distinct t1.d) else count(distinct b) end from t1) then t1.f when (t1.e in ( -t1.a,t1.e,d)) then 17 else t1.e end | e end)- -b)/abs(t1.f)))/abs(13)) from t1 union select t1.d from t1)),17) FROM t1 WHERE e+t1.b not in (d,a,t1.c) and case case e when (case when +case 13 when t1.a then 19 else 19 end+d in (select count(*)-min(b) from t1 union select  - -min(t1.d) from t1) or f in (select ( -min(t1.e)) from t1 union select cast(avg( -19) AS integer) from t1) or (t1.f in (select  -max( -t1.c) from t1 union select (min(t1.c)) from t1)) then b else +t1.b end)-t1.b then b else 19 end when a then b else e end between ( -(t1.c)) and a}
+} {}
+do_test randexpr-2.2546 {
+  db eval {SELECT 17+coalesce((select max(19) from t1 where 11 in (select (abs((abs(~(case +b+17 when t1.e*t1.b then 17 else case when t1.b+17+d*a in (select (~count(distinct a)) from t1 union select case cast(avg(t1.e) AS integer) when count(*) then count(distinct t1.d) else count(distinct b) end from t1) then t1.f when (t1.e in ( -t1.a,t1.e,d)) then 17 else t1.e end | e end)- -b)/abs(t1.f)))/abs(13)) from t1 union select t1.d from t1)),17) FROM t1 WHERE NOT (e+t1.b not in (d,a,t1.c) and case case e when (case when +case 13 when t1.a then 19 else 19 end+d in (select count(*)-min(b) from t1 union select  - -min(t1.d) from t1) or f in (select ( -min(t1.e)) from t1 union select cast(avg( -19) AS integer) from t1) or (t1.f in (select  -max( -t1.c) from t1 union select (min(t1.c)) from t1)) then b else +t1.b end)-t1.b then b else 19 end when a then b else e end between ( -(t1.c)) and a)}
+} {34}
+do_test randexpr-2.2547 {
+  db eval {SELECT 17+coalesce((select max(19) from t1 where 11 in (select (abs((abs(~(case +b+17 when t1.e*t1.b then 17 else case when t1.b+17+d*a in (select (~count(distinct a)) from t1 union select case cast(avg(t1.e) AS integer) when count(*) then count(distinct t1.d) else count(distinct b) end from t1) then t1.f when (t1.e in ( -t1.a,t1.e,d)) then 17 else t1.e end & e end)- -b)/abs(t1.f)))/abs(13)) from t1 union select t1.d from t1)),17) FROM t1 WHERE NOT (e+t1.b not in (d,a,t1.c) and case case e when (case when +case 13 when t1.a then 19 else 19 end+d in (select count(*)-min(b) from t1 union select  - -min(t1.d) from t1) or f in (select ( -min(t1.e)) from t1 union select cast(avg( -19) AS integer) from t1) or (t1.f in (select  -max( -t1.c) from t1 union select (min(t1.c)) from t1)) then b else +t1.b end)-t1.b then b else 19 end when a then b else e end between ( -(t1.c)) and a)}
+} {34}
+do_test randexpr-2.2548 {
+  db eval {SELECT (abs(~(abs((select ~count(*) | +(max( -coalesce((select max(13) from t1 where coalesce((select max(t1.d) from t1 where 11<+coalesce((select max((case when 19=t1.a then (d) else 19 end)) from t1 where (11) in (17,c,b)),c)*t1.e),t1.c)<13),11)*b | t1.c+17)) from t1))/abs(~b-f))-t1.d*a)/abs(e)) FROM t1 WHERE c not in (coalesce((select t1.a from t1 where  -(t1.a+17*~case when coalesce((select max(t1.c) from t1 where (coalesce((select max(t1.f) from t1 where not exists(select 1 from t1 where a<=t1.a)),11) in (select (count(distinct t1.d)+count(distinct c)) from t1 union select count(distinct e) from t1))),13)*f=d then d when t1.d in (select t1.d from t1 union select t1.f from t1) then d else t1.f end+c*c | f)+t1.c*t1.a in (select 17 from t1 union select 13 from t1)),t1.f),17,t1.f)}
+} {80}
+do_test randexpr-2.2549 {
+  db eval {SELECT (abs(~(abs((select ~count(*) | +(max( -coalesce((select max(13) from t1 where coalesce((select max(t1.d) from t1 where 11<+coalesce((select max((case when 19=t1.a then (d) else 19 end)) from t1 where (11) in (17,c,b)),c)*t1.e),t1.c)<13),11)*b | t1.c+17)) from t1))/abs(~b-f))-t1.d*a)/abs(e)) FROM t1 WHERE NOT (c not in (coalesce((select t1.a from t1 where  -(t1.a+17*~case when coalesce((select max(t1.c) from t1 where (coalesce((select max(t1.f) from t1 where not exists(select 1 from t1 where a<=t1.a)),11) in (select (count(distinct t1.d)+count(distinct c)) from t1 union select count(distinct e) from t1))),13)*f=d then d when t1.d in (select t1.d from t1 union select t1.f from t1) then d else t1.f end+c*c | f)+t1.c*t1.a in (select 17 from t1 union select 13 from t1)),t1.f),17,t1.f))}
+} {}
+do_test randexpr-2.2550 {
+  db eval {SELECT (abs(~(abs((select ~count(*) & +(max( -coalesce((select max(13) from t1 where coalesce((select max(t1.d) from t1 where 11<+coalesce((select max((case when 19=t1.a then (d) else 19 end)) from t1 where (11) in (17,c,b)),c)*t1.e),t1.c)<13),11)*b & t1.c+17)) from t1))/abs(~b-f))-t1.d*a)/abs(e)) FROM t1 WHERE c not in (coalesce((select t1.a from t1 where  -(t1.a+17*~case when coalesce((select max(t1.c) from t1 where (coalesce((select max(t1.f) from t1 where not exists(select 1 from t1 where a<=t1.a)),11) in (select (count(distinct t1.d)+count(distinct c)) from t1 union select count(distinct e) from t1))),13)*f=d then d when t1.d in (select t1.d from t1 union select t1.f from t1) then d else t1.f end+c*c | f)+t1.c*t1.a in (select 17 from t1 union select 13 from t1)),t1.f),17,t1.f)}
+} {80}
+do_test randexpr-2.2551 {
+  db eval {SELECT case (19) when t1.a then t1.f+coalesce((select max(t1.f) from t1 where case when t1.c=t1.a or (t1.d | case when t1.f=t1.d then a else coalesce((select max(case when 11>=a then t1.b else d end+t1.a) from t1 where  -t1.a not between t1.e and 19),11) end<>t1.d) then t1.e else c end-t1.f*b+f=19),t1.b) | (t1.a)+e else a end FROM t1 WHERE (case e when d then +(select (min(t1.a)) from t1) else case when a in ((select min(case  -t1.c when d then d else f end+ -e)-+cast(avg(19) AS integer)+max(d) from t1)*t1.d |  -t1.c,b,e) then t1.d when t1.b in (select +min(e) | min(t1.b) from t1 union select  -count(distinct e) from t1) then d else 11 end*13-(e) end not in (t1.c,c,17))}
+} {100}
+do_test randexpr-2.2552 {
+  db eval {SELECT case (19) when t1.a then t1.f+coalesce((select max(t1.f) from t1 where case when t1.c=t1.a or (t1.d | case when t1.f=t1.d then a else coalesce((select max(case when 11>=a then t1.b else d end+t1.a) from t1 where  -t1.a not between t1.e and 19),11) end<>t1.d) then t1.e else c end-t1.f*b+f=19),t1.b) | (t1.a)+e else a end FROM t1 WHERE NOT ((case e when d then +(select (min(t1.a)) from t1) else case when a in ((select min(case  -t1.c when d then d else f end+ -e)-+cast(avg(19) AS integer)+max(d) from t1)*t1.d |  -t1.c,b,e) then t1.d when t1.b in (select +min(e) | min(t1.b) from t1 union select  -count(distinct e) from t1) then d else 11 end*13-(e) end not in (t1.c,c,17)))}
+} {}
+do_test randexpr-2.2553 {
+  db eval {SELECT case (19) when t1.a then t1.f+coalesce((select max(t1.f) from t1 where case when t1.c=t1.a or (t1.d & case when t1.f=t1.d then a else coalesce((select max(case when 11>=a then t1.b else d end+t1.a) from t1 where  -t1.a not between t1.e and 19),11) end<>t1.d) then t1.e else c end-t1.f*b+f=19),t1.b) & (t1.a)+e else a end FROM t1 WHERE (case e when d then +(select (min(t1.a)) from t1) else case when a in ((select min(case  -t1.c when d then d else f end+ -e)-+cast(avg(19) AS integer)+max(d) from t1)*t1.d |  -t1.c,b,e) then t1.d when t1.b in (select +min(e) | min(t1.b) from t1 union select  -count(distinct e) from t1) then d else 11 end*13-(e) end not in (t1.c,c,17))}
+} {100}
+do_test randexpr-2.2554 {
+  db eval {SELECT (abs(( -case when 11*coalesce((select coalesce((select d from t1 where ((+t1.f*(select max(t1.f)*min(t1.a) from t1)*d*t1.f between 11 and 13))), -t1.c) from t1 where ((e)>=t1.b) or not t1.a in (select f from t1 union select c from t1) and 11<=a or c between (t1.c) and t1.d),t1.f)<t1.b then 13 else c end-d-t1.e))/abs(17)) FROM t1 WHERE +(select ~case  -++(( -~count(distinct t1.b)))*min(c)*max(t1.f) when ~+count(distinct  -(abs(d)/abs(t1.a))+t1.d+c-13) then count(*) else case (~max(d))+((count(distinct f))) when max(t1.e) then min(t1.c) else (cast(avg(t1.e) AS integer)) end end from t1)-+(select min(17) from t1)+19>t1.f}
+} {}
+do_test randexpr-2.2555 {
+  db eval {SELECT (abs(( -case when 11*coalesce((select coalesce((select d from t1 where ((+t1.f*(select max(t1.f)*min(t1.a) from t1)*d*t1.f between 11 and 13))), -t1.c) from t1 where ((e)>=t1.b) or not t1.a in (select f from t1 union select c from t1) and 11<=a or c between (t1.c) and t1.d),t1.f)<t1.b then 13 else c end-d-t1.e))/abs(17)) FROM t1 WHERE NOT (+(select ~case  -++(( -~count(distinct t1.b)))*min(c)*max(t1.f) when ~+count(distinct  -(abs(d)/abs(t1.a))+t1.d+c-13) then count(*) else case (~max(d))+((count(distinct f))) when max(t1.e) then min(t1.c) else (cast(avg(t1.e) AS integer)) end end from t1)-+(select min(17) from t1)+19>t1.f)}
+} {53}
+do_test randexpr-2.2556 {
+  db eval {SELECT case (t1.b) | t1.d-+t1.e*(select (~count(*) | min(c)-case max(case when e | b in (select t1.b from t1 union select t1.b from t1) then d when 17 between 13 and t1.d then d else t1.c end) when abs(count(distinct (t1.e)))- -min(t1.e) then cast(avg(17) AS integer) else count(distinct c) end) from t1) | b-a-+f-t1.f when +a then t1.d else d end FROM t1 WHERE (17>t1.d) and coalesce((select max((t1.a)+coalesce((select max(17*b) from t1 where t1.d-coalesce((select t1.e from t1 where t1.b<>13 or 19=t1.a),t1.d)*f<=(19) or (t1.c<11 and not not d<t1.a)), -11)-17) from t1 where t1.d not in (19,a,t1.c)),e)*13>t1.d or d=11}
+} {}
+do_test randexpr-2.2557 {
+  db eval {SELECT case (t1.b) | t1.d-+t1.e*(select (~count(*) | min(c)-case max(case when e | b in (select t1.b from t1 union select t1.b from t1) then d when 17 between 13 and t1.d then d else t1.c end) when abs(count(distinct (t1.e)))- -min(t1.e) then cast(avg(17) AS integer) else count(distinct c) end) from t1) | b-a-+f-t1.f when +a then t1.d else d end FROM t1 WHERE NOT ((17>t1.d) and coalesce((select max((t1.a)+coalesce((select max(17*b) from t1 where t1.d-coalesce((select t1.e from t1 where t1.b<>13 or 19=t1.a),t1.d)*f<=(19) or (t1.c<11 and not not d<t1.a)), -11)-17) from t1 where t1.d not in (19,a,t1.c)),e)*13>t1.d or d=11)}
+} {400}
+do_test randexpr-2.2558 {
+  db eval {SELECT case (t1.b) & t1.d-+t1.e*(select (~count(*) & min(c)-case max(case when e & b in (select t1.b from t1 union select t1.b from t1) then d when 17 between 13 and t1.d then d else t1.c end) when abs(count(distinct (t1.e)))- -min(t1.e) then cast(avg(17) AS integer) else count(distinct c) end) from t1) & b-a-+f-t1.f when +a then t1.d else d end FROM t1 WHERE NOT ((17>t1.d) and coalesce((select max((t1.a)+coalesce((select max(17*b) from t1 where t1.d-coalesce((select t1.e from t1 where t1.b<>13 or 19=t1.a),t1.d)*f<=(19) or (t1.c<11 and not not d<t1.a)), -11)-17) from t1 where t1.d not in (19,a,t1.c)),e)*13>t1.d or d=11)}
+} {400}
+do_test randexpr-2.2559 {
+  db eval {SELECT case when case when coalesce((select max(c*case (select min(case when f in (select t1.e from t1 union select f+case when d<=d then t1.f when b<=11 then t1.c else t1.b end*11 from t1) then f else c end) from t1) when f then 11 else b end) from t1 where d in (t1.b,t1.a,c)),d) between (d) and 19 then  -a else a end in ( -c,t1.d,t1.d) then c when e<> -d then a else t1.c end FROM t1 WHERE a=c or case when e<coalesce((select t1.c from t1 where exists(select 1 from t1 where (f not in (case (select case +(min(11)) when cast(avg(t1.c) AS integer) then count(*) else  - -cast(avg(t1.a) AS integer) end from t1) when t1.b then d else t1.b end,13,a) and t1.c<= -t1.d and (t1.a)<=b or e not between t1.a and b) or a not between t1.b and t1.f) or 19>=(e)),t1.a) then c | t1.f when exists(select 1 from t1 where a not between 19 and e) then t1.a else 17 end>t1.d}
+} {}
+do_test randexpr-2.2560 {
+  db eval {SELECT case when case when coalesce((select max(c*case (select min(case when f in (select t1.e from t1 union select f+case when d<=d then t1.f when b<=11 then t1.c else t1.b end*11 from t1) then f else c end) from t1) when f then 11 else b end) from t1 where d in (t1.b,t1.a,c)),d) between (d) and 19 then  -a else a end in ( -c,t1.d,t1.d) then c when e<> -d then a else t1.c end FROM t1 WHERE NOT (a=c or case when e<coalesce((select t1.c from t1 where exists(select 1 from t1 where (f not in (case (select case +(min(11)) when cast(avg(t1.c) AS integer) then count(*) else  - -cast(avg(t1.a) AS integer) end from t1) when t1.b then d else t1.b end,13,a) and t1.c<= -t1.d and (t1.a)<=b or e not between t1.a and b) or a not between t1.b and t1.f) or 19>=(e)),t1.a) then c | t1.f when exists(select 1 from t1 where a not between 19 and e) then t1.a else 17 end>t1.d)}
+} {100}
+do_test randexpr-2.2561 {
+  db eval {SELECT 13+(select  -abs(+cast(avg((select cast(avg(t1.e*(t1.c)- -(abs(b+e)/abs(f))) AS integer) from t1)) AS integer)-~ -+abs(abs(count(*))) | min(t1.e | t1.e-t1.b)*max(e)-max(t1.f) | min(c)*min(t1.b)+min(t1.e)-count(distinct 11) | min(b)*( - -count(distinct 19)))-count(*) from t1) FROM t1 WHERE d in (select count(*) from t1 union select case count(*) when max(17) |  -max(coalesce((select case t1.d*t1.e when t1.a then 11 else 13 end*f- -f from t1 where b in (select case ~abs(max(13)) when case ((max(c))) when cast(avg(t1.c) AS integer) then max(13) else count(distinct t1.d) end then cast(avg(t1.a) AS integer) else cast(avg(11) AS integer) end from t1 union select  -max(13) from t1)),13))*cast(avg(f) AS integer) then count(*) else count(distinct e) end from t1) and exists(select 1 from t1 where case d when  -(abs(17)/abs(t1.f)) then t1.a else t1.d end<t1.a)}
+} {}
+do_test randexpr-2.2562 {
+  db eval {SELECT 13+(select  -abs(+cast(avg((select cast(avg(t1.e*(t1.c)- -(abs(b+e)/abs(f))) AS integer) from t1)) AS integer)-~ -+abs(abs(count(*))) | min(t1.e | t1.e-t1.b)*max(e)-max(t1.f) | min(c)*min(t1.b)+min(t1.e)-count(distinct 11) | min(b)*( - -count(distinct 19)))-count(*) from t1) FROM t1 WHERE NOT (d in (select count(*) from t1 union select case count(*) when max(17) |  -max(coalesce((select case t1.d*t1.e when t1.a then 11 else 13 end*f- -f from t1 where b in (select case ~abs(max(13)) when case ((max(c))) when cast(avg(t1.c) AS integer) then max(13) else count(distinct t1.d) end then cast(avg(t1.a) AS integer) else cast(avg(11) AS integer) end from t1 union select  -max(13) from t1)),13))*cast(avg(f) AS integer) then count(*) else count(distinct e) end from t1) and exists(select 1 from t1 where case d when  -(abs(17)/abs(t1.f)) then t1.a else t1.d end<t1.a))}
+} {-261615}
+do_test randexpr-2.2563 {
+  db eval {SELECT 13+(select  -abs(+cast(avg((select cast(avg(t1.e*(t1.c)- -(abs(b+e)/abs(f))) AS integer) from t1)) AS integer)-~ -+abs(abs(count(*))) & min(t1.e & t1.e-t1.b)*max(e)-max(t1.f) & min(c)*min(t1.b)+min(t1.e)-count(distinct 11) & min(b)*( - -count(distinct 19)))-count(*) from t1) FROM t1 WHERE NOT (d in (select count(*) from t1 union select case count(*) when max(17) |  -max(coalesce((select case t1.d*t1.e when t1.a then 11 else 13 end*f- -f from t1 where b in (select case ~abs(max(13)) when case ((max(c))) when cast(avg(t1.c) AS integer) then max(13) else count(distinct t1.d) end then cast(avg(t1.a) AS integer) else cast(avg(11) AS integer) end from t1 union select  -max(13) from t1)),13))*cast(avg(f) AS integer) then count(*) else count(distinct e) end from t1) and exists(select 1 from t1 where case d when  -(abs(17)/abs(t1.f)) then t1.a else t1.d end<t1.a))}
+} {-52}
+do_test randexpr-2.2564 {
+  db eval {SELECT c+c*(abs(t1.c+coalesce((select case when 17 not in (t1.f,t1.e,t1.d) or (17<t1.d) then case d when t1.a then t1.f else 11 end else t1.e end*d from t1 where 19 in (select abs(~count(distinct a)) from t1 union select case cast(avg(t1.c) AS integer) when  -max(t1.b) then min(c) else min(f) end+ -max(t1.d) from t1)),t1.b)+t1.e)/abs(17))+t1.b+ -t1.f+17-t1.c FROM t1 WHERE (13)+19>=19}
+} {17017}
+do_test randexpr-2.2565 {
+  db eval {SELECT c+c*(abs(t1.c+coalesce((select case when 17 not in (t1.f,t1.e,t1.d) or (17<t1.d) then case d when t1.a then t1.f else 11 end else t1.e end*d from t1 where 19 in (select abs(~count(distinct a)) from t1 union select case cast(avg(t1.c) AS integer) when  -max(t1.b) then min(c) else min(f) end+ -max(t1.d) from t1)),t1.b)+t1.e)/abs(17))+t1.b+ -t1.f+17-t1.c FROM t1 WHERE NOT ((13)+19>=19)}
+} {}
+do_test randexpr-2.2566 {
+  db eval {SELECT +case when not c in (select count(distinct t1.b) from t1 union select  -+(cast(avg(b*t1.b) AS integer))*max(case 17 when b then 13 else t1.a end)-count(distinct a) | cast(avg(t1.f) AS integer)+max(t1.d) from t1) then t1.e when a<=case t1.a when (e) then t1.d else d end then d else t1.b end*11-a | 17 | t1.a-f FROM t1 WHERE (c not in (t1.b,(select case case ++(min(19))*(count(distinct t1.a))+count(distinct e) | cast(avg(t1.e) AS integer) when min( -t1.d) then cast(avg(13) AS integer) else min(17) end*cast(avg(a) AS integer) when count(distinct  -b) then cast(avg(11) AS integer) else  - -(cast(avg(c) AS integer)) end from t1)-11+t1.e,t1.a) or d*case d when a then t1.c else 17 end*19 not between b and t1.c or  -17=b or f in (select a from t1 union select  -b from t1))}
+} {-227}
+do_test randexpr-2.2567 {
+  db eval {SELECT +case when not c in (select count(distinct t1.b) from t1 union select  -+(cast(avg(b*t1.b) AS integer))*max(case 17 when b then 13 else t1.a end)-count(distinct a) | cast(avg(t1.f) AS integer)+max(t1.d) from t1) then t1.e when a<=case t1.a when (e) then t1.d else d end then d else t1.b end*11-a | 17 | t1.a-f FROM t1 WHERE NOT ((c not in (t1.b,(select case case ++(min(19))*(count(distinct t1.a))+count(distinct e) | cast(avg(t1.e) AS integer) when min( -t1.d) then cast(avg(13) AS integer) else min(17) end*cast(avg(a) AS integer) when count(distinct  -b) then cast(avg(11) AS integer) else  - -(cast(avg(c) AS integer)) end from t1)-11+t1.e,t1.a) or d*case d when a then t1.c else 17 end*19 not between b and t1.c or  -17=b or f in (select a from t1 union select  -b from t1)))}
+} {}
+do_test randexpr-2.2568 {
+  db eval {SELECT +case when not c in (select count(distinct t1.b) from t1 union select  -+(cast(avg(b*t1.b) AS integer))*max(case 17 when b then 13 else t1.a end)-count(distinct a) & cast(avg(t1.f) AS integer)+max(t1.d) from t1) then t1.e when a<=case t1.a when (e) then t1.d else d end then d else t1.b end*11-a & 17 & t1.a-f FROM t1 WHERE (c not in (t1.b,(select case case ++(min(19))*(count(distinct t1.a))+count(distinct e) | cast(avg(t1.e) AS integer) when min( -t1.d) then cast(avg(13) AS integer) else min(17) end*cast(avg(a) AS integer) when count(distinct  -b) then cast(avg(11) AS integer) else  - -(cast(avg(c) AS integer)) end from t1)-11+t1.e,t1.a) or d*case d when a then t1.c else 17 end*19 not between b and t1.c or  -17=b or f in (select a from t1 union select  -b from t1))}
+} {0}
+do_test randexpr-2.2569 {
+  db eval {SELECT coalesce((select (abs(f)/abs(coalesce((select max(19*b+d*coalesce((select max(t1.c) from t1 where case when d>=(abs((11))/abs(t1.a*13+(13)-d*e+11)) then t1.c when t1.c>=a then 19 else  -17 end*t1.e> -e),t1.f)) from t1 where 13<=t1.e),t1.d))) from t1 where t1.d in (select d from t1 union select a from t1)),t1.e) FROM t1 WHERE t1.c between (11) and coalesce((select max(b*case t1.c when t1.f then t1.f else 11 end) from t1 where +(select count(distinct case when f not between  -13 and 19 then t1.f++(f) | t1.e*(+13)* -(t1.c)-t1.b when 13=t1.d then 19 else t1.b end*t1.a) from t1) in (t1.e,11, -19)),d)+f}
+} {0}
+do_test randexpr-2.2570 {
+  db eval {SELECT coalesce((select (abs(f)/abs(coalesce((select max(19*b+d*coalesce((select max(t1.c) from t1 where case when d>=(abs((11))/abs(t1.a*13+(13)-d*e+11)) then t1.c when t1.c>=a then 19 else  -17 end*t1.e> -e),t1.f)) from t1 where 13<=t1.e),t1.d))) from t1 where t1.d in (select d from t1 union select a from t1)),t1.e) FROM t1 WHERE NOT (t1.c between (11) and coalesce((select max(b*case t1.c when t1.f then t1.f else 11 end) from t1 where +(select count(distinct case when f not between  -13 and 19 then t1.f++(f) | t1.e*(+13)* -(t1.c)-t1.b when 13=t1.d then 19 else t1.b end*t1.a) from t1) in (t1.e,11, -19)),d)+f)}
+} {}
+do_test randexpr-2.2571 {
+  db eval {SELECT case when (not 19>=(abs(t1.b)/abs(+f))) then case 13 when case t1.c when t1.b then f else 13 end then t1.e else t1.a end+coalesce((select max(c) from t1 where a not between t1.d*17*coalesce((select max(e*b) from t1 where t1.a=11),t1.c) and t1.d),t1.d) when (case when t1.d not in (e,t1.a,t1.b) then 19 else t1.f end between t1.c and 19) then t1.e else 11 end FROM t1 WHERE t1.b*+c>=17}
+} {11}
+do_test randexpr-2.2572 {
+  db eval {SELECT case when (not 19>=(abs(t1.b)/abs(+f))) then case 13 when case t1.c when t1.b then f else 13 end then t1.e else t1.a end+coalesce((select max(c) from t1 where a not between t1.d*17*coalesce((select max(e*b) from t1 where t1.a=11),t1.c) and t1.d),t1.d) when (case when t1.d not in (e,t1.a,t1.b) then 19 else t1.f end between t1.c and 19) then t1.e else 11 end FROM t1 WHERE NOT (t1.b*+c>=17)}
+} {}
+do_test randexpr-2.2573 {
+  db eval {SELECT case when d-t1.c<>e then c when (11 not between 13 and 13) then 13 else  -case when c*t1.d>=b*b then  -t1.f else b-t1.c | d*(case t1.d when  -case t1.b when t1.b then t1.b else 19 end*19*(t1.d) then 13 else 19 end) end+19*11 end+b FROM t1 WHERE ~~case when t1.d+(abs(t1.b+coalesce((select coalesce((select max(b-a-a) from t1 where 17 not in (e,case when (t1.d)<=t1.f or  -a not between c and t1.b then c when  -19 in ( -d,(t1.a),19) then b else f end,t1.e)), -13) from t1 where not b in (t1.b, -t1.b,c)),e))/abs(11)) between 13 and d then (t1.b) when t1.e<13 then 19 else a end-(19)-d*t1.d not in (d,t1.c,13)}
+} {500}
+do_test randexpr-2.2574 {
+  db eval {SELECT case when d-t1.c<>e then c when (11 not between 13 and 13) then 13 else  -case when c*t1.d>=b*b then  -t1.f else b-t1.c | d*(case t1.d when  -case t1.b when t1.b then t1.b else 19 end*19*(t1.d) then 13 else 19 end) end+19*11 end+b FROM t1 WHERE NOT (~~case when t1.d+(abs(t1.b+coalesce((select coalesce((select max(b-a-a) from t1 where 17 not in (e,case when (t1.d)<=t1.f or  -a not between c and t1.b then c when  -19 in ( -d,(t1.a),19) then b else f end,t1.e)), -13) from t1 where not b in (t1.b, -t1.b,c)),e))/abs(11)) between 13 and d then (t1.b) when t1.e<13 then 19 else a end-(19)-d*t1.d not in (d,t1.c,13))}
+} {}
+do_test randexpr-2.2575 {
+  db eval {SELECT case when d-t1.c<>e then c when (11 not between 13 and 13) then 13 else  -case when c*t1.d>=b*b then  -t1.f else b-t1.c & d*(case t1.d when  -case t1.b when t1.b then t1.b else 19 end*19*(t1.d) then 13 else 19 end) end+19*11 end+b FROM t1 WHERE ~~case when t1.d+(abs(t1.b+coalesce((select coalesce((select max(b-a-a) from t1 where 17 not in (e,case when (t1.d)<=t1.f or  -a not between c and t1.b then c when  -19 in ( -d,(t1.a),19) then b else f end,t1.e)), -13) from t1 where not b in (t1.b, -t1.b,c)),e))/abs(11)) between 13 and d then (t1.b) when t1.e<13 then 19 else a end-(19)-d*t1.d not in (d,t1.c,13)}
+} {500}
+do_test randexpr-2.2576 {
+  db eval {SELECT 19+t1.d+d-t1.c*case when 11 not between e and ~c+(select min((abs(t1.b*t1.b)/abs(+t1.c-e))) from t1) then 17 when case when 17*13 not in (t1.b,(abs(~c)/abs( -17-e)),(t1.e)) then 17 else (t1.c) end+c+t1.f not in (t1.f,19,t1.f) then  -t1.e else t1.f end FROM t1 WHERE (+13) between +b and t1.e+11}
+} {}
+do_test randexpr-2.2577 {
+  db eval {SELECT 19+t1.d+d-t1.c*case when 11 not between e and ~c+(select min((abs(t1.b*t1.b)/abs(+t1.c-e))) from t1) then 17 when case when 17*13 not in (t1.b,(abs(~c)/abs( -17-e)),(t1.e)) then 17 else (t1.c) end+c+t1.f not in (t1.f,19,t1.f) then  -t1.e else t1.f end FROM t1 WHERE NOT ((+13) between +b and t1.e+11)}
+} {-4281}
+do_test randexpr-2.2578 {
+  db eval {SELECT 17+d*~(abs(coalesce((select 19 | f | e*~+((abs(e)/abs(+19))-t1.c-case 17 when t1.f then f else 19 end-17) from t1 where (e in (select ~(11) from t1 union select case when (f)>a then b when e between  -e and t1.b then 17 else t1.f end*t1.a from t1))),t1.b)*e)/abs(17))-t1.a-19 FROM t1 WHERE t1.e not in (d,e,case 19 when  - -~case when exists(select 1 from t1 where 17 not in (t1.d,t1.a,coalesce((select max(11-a) from t1 where coalesce((select +c from t1 where exists(select 1 from t1 where case when t1.f not in (19+(f),d,t1.c) then t1.c when (exists(select 1 from t1 where t1.c>19)) then 19 else f end not between a and t1.f)),t1.c)<=b),17))) then t1.d-11 else t1.b end then (d) else t1.f end-(c))}
+} {}
+do_test randexpr-2.2579 {
+  db eval {SELECT 17+d*~(abs(coalesce((select 19 | f | e*~+((abs(e)/abs(+19))-t1.c-case 17 when t1.f then f else 19 end-17) from t1 where (e in (select ~(11) from t1 union select case when (f)>a then b when e between  -e and t1.b then 17 else t1.f end*t1.a from t1))),t1.b)*e)/abs(17))-t1.a-19 FROM t1 WHERE NOT (t1.e not in (d,e,case 19 when  - -~case when exists(select 1 from t1 where 17 not in (t1.d,t1.a,coalesce((select max(11-a) from t1 where coalesce((select +c from t1 where exists(select 1 from t1 where case when t1.f not in (19+(f),d,t1.c) then t1.c when (exists(select 1 from t1 where t1.c>19)) then 19 else f end not between a and t1.f)),t1.c)<=b),17))) then t1.d-11 else t1.b end then (d) else t1.f end-(c)))}
+} {-2353302}
+do_test randexpr-2.2580 {
+  db eval {SELECT 17+d*~(abs(coalesce((select 19 & f & e*~+((abs(e)/abs(+19))-t1.c-case 17 when t1.f then f else 19 end-17) from t1 where (e in (select ~(11) from t1 union select case when (f)>a then b when e between  -e and t1.b then 17 else t1.f end*t1.a from t1))),t1.b)*e)/abs(17))-t1.a-19 FROM t1 WHERE NOT (t1.e not in (d,e,case 19 when  - -~case when exists(select 1 from t1 where 17 not in (t1.d,t1.a,coalesce((select max(11-a) from t1 where coalesce((select +c from t1 where exists(select 1 from t1 where case when t1.f not in (19+(f),d,t1.c) then t1.c when (exists(select 1 from t1 where t1.c>19)) then 19 else f end not between a and t1.f)),t1.c)<=b),17))) then t1.d-11 else t1.b end then (d) else t1.f end-(c)))}
+} {-2353302}
+do_test randexpr-2.2581 {
+  db eval {SELECT case a when b-coalesce((select coalesce((select max(c-(abs((19))/abs(coalesce((select t1.c+d from t1 where 17 not in (d,t1.c, -t1.e)),t1.b)-(e)))) from t1 where t1.d in (t1.e,e,t1.f)),(e)) from t1 where t1.b=t1.e or t1.b not between b and e or t1.f not between t1.b and e or c not between  -b and a),d) then 13 else 17 end FROM t1 WHERE a+17+(17) in ( -t1.a,13,coalesce((select max(e) from t1 where b+a-13<=b),e)) or e in (select abs( -+~abs(+(min(c))))+count(distinct b) from t1 union select abs(+((max(t1.c)) | min(t1.b))) from t1) and 13 not between f and 19 or not e not in ( -17,13,t1.a)}
+} {}
+do_test randexpr-2.2582 {
+  db eval {SELECT case a when b-coalesce((select coalesce((select max(c-(abs((19))/abs(coalesce((select t1.c+d from t1 where 17 not in (d,t1.c, -t1.e)),t1.b)-(e)))) from t1 where t1.d in (t1.e,e,t1.f)),(e)) from t1 where t1.b=t1.e or t1.b not between b and e or t1.f not between t1.b and e or c not between  -b and a),d) then 13 else 17 end FROM t1 WHERE NOT (a+17+(17) in ( -t1.a,13,coalesce((select max(e) from t1 where b+a-13<=b),e)) or e in (select abs( -+~abs(+(min(c))))+count(distinct b) from t1 union select abs(+((max(t1.c)) | min(t1.b))) from t1) and 13 not between f and 19 or not e not in ( -17,13,t1.a))}
+} {17}
+do_test randexpr-2.2583 {
+  db eval {SELECT case when not t1.e between 17 and a then 11+ -(select ~case count(distinct +13+t1.c | c*13)- -+ -cast(avg(c) AS integer)-min(19)+case  -max(c) when  -cast(avg(b) AS integer) then max(11) else max(13) end+count(distinct t1.f) when max(( -d)) then cast(avg(t1.c) AS integer) else (min((t1.b))) end | cast(avg(t1.f) AS integer)*count(distinct 17) from t1)+b else +t1.e |  -t1.a-a end FROM t1 WHERE (t1.f<=~c+f)}
+} {}
+do_test randexpr-2.2584 {
+  db eval {SELECT case when not t1.e between 17 and a then 11+ -(select ~case count(distinct +13+t1.c | c*13)- -+ -cast(avg(c) AS integer)-min(19)+case  -max(c) when  -cast(avg(b) AS integer) then max(11) else max(13) end+count(distinct t1.f) when max(( -d)) then cast(avg(t1.c) AS integer) else (min((t1.b))) end | cast(avg(t1.f) AS integer)*count(distinct 17) from t1)+b else +t1.e |  -t1.a-a end FROM t1 WHERE NOT ((t1.f<=~c+f))}
+} {340}
+do_test randexpr-2.2585 {
+  db eval {SELECT case when not t1.e between 17 and a then 11+ -(select ~case count(distinct +13+t1.c & c*13)- -+ -cast(avg(c) AS integer)-min(19)+case  -max(c) when  -cast(avg(b) AS integer) then max(11) else max(13) end+count(distinct t1.f) when max(( -d)) then cast(avg(t1.c) AS integer) else (min((t1.b))) end & cast(avg(t1.f) AS integer)*count(distinct 17) from t1)+b else +t1.e &  -t1.a-a end FROM t1 WHERE NOT ((t1.f<=~c+f))}
+} {-317}
+do_test randexpr-2.2586 {
+  db eval {SELECT t1.f-coalesce((select max(case when b<>~t1.f then b+f else coalesce((select t1.c from t1 where case a when 19*t1.e+a then 19 else 13 end between 13 and a),t1.d)+b end) from t1 where (t1.c) in (select  -~min(c) | max(t1.d) from t1 union select  -cast(avg(t1.a) AS integer) from t1) and t1.c in (t1.a,d,11) or 11<t1.c),t1.a) FROM t1 WHERE not exists(select 1 from t1 where +case when 19+~coalesce((select max(+c*t1.c-d) from t1 where t1.f>13 and not exists(select 1 from t1 where (((t1.d<=t1.b))))),e)*b*t1.f>t1.a or not exists(select 1 from t1 where (13) not in (11,t1.b,t1.c)) then c+d else t1.e end>=t1.f) or (not exists(select 1 from t1 where  -11 in (c,t1.d, -a)) or a not between  - - -(b) and b) or 13 between t1.b and f}
+} {-200}
+do_test randexpr-2.2587 {
+  db eval {SELECT t1.f-coalesce((select max(case when b<>~t1.f then b+f else coalesce((select t1.c from t1 where case a when 19*t1.e+a then 19 else 13 end between 13 and a),t1.d)+b end) from t1 where (t1.c) in (select  -~min(c) | max(t1.d) from t1 union select  -cast(avg(t1.a) AS integer) from t1) and t1.c in (t1.a,d,11) or 11<t1.c),t1.a) FROM t1 WHERE NOT (not exists(select 1 from t1 where +case when 19+~coalesce((select max(+c*t1.c-d) from t1 where t1.f>13 and not exists(select 1 from t1 where (((t1.d<=t1.b))))),e)*b*t1.f>t1.a or not exists(select 1 from t1 where (13) not in (11,t1.b,t1.c)) then c+d else t1.e end>=t1.f) or (not exists(select 1 from t1 where  -11 in (c,t1.d, -a)) or a not between  - - -(b) and b) or 13 between t1.b and f)}
+} {}
+do_test randexpr-2.2588 {
+  db eval {SELECT t1.f-coalesce((select max(case when b<>~t1.f then b+f else coalesce((select t1.c from t1 where case a when 19*t1.e+a then 19 else 13 end between 13 and a),t1.d)+b end) from t1 where (t1.c) in (select  -~min(c) & max(t1.d) from t1 union select  -cast(avg(t1.a) AS integer) from t1) and t1.c in (t1.a,d,11) or 11<t1.c),t1.a) FROM t1 WHERE not exists(select 1 from t1 where +case when 19+~coalesce((select max(+c*t1.c-d) from t1 where t1.f>13 and not exists(select 1 from t1 where (((t1.d<=t1.b))))),e)*b*t1.f>t1.a or not exists(select 1 from t1 where (13) not in (11,t1.b,t1.c)) then c+d else t1.e end>=t1.f) or (not exists(select 1 from t1 where  -11 in (c,t1.d, -a)) or a not between  - - -(b) and b) or 13 between t1.b and f}
+} {-200}
+do_test randexpr-2.2589 {
+  db eval {SELECT case when ( -c=~t1.b and coalesce((select max(coalesce((select b from t1 where t1.f between case when t1.e between t1.f and 19 then (t1.b) else t1.a end and t1.f),a)) from t1 where 11=t1.f),t1.f)+t1.c=d) and a>t1.c and 19> -19 and exists(select 1 from t1 where (b=17)) and 17 between 19 and 13 then 19*case (d) when c then b else a end when t1.d not in ( -t1.a,f,13) then  -t1.f else (d) end FROM t1 WHERE 11*case when d | (abs(+t1.e-t1.e*b+(select case abs(count(*)) when count(*) then count(*) else cast(avg(t1.c) AS integer) end from t1)*17+(d)-13-11)/abs(c))-f- -t1.c-d | t1.a not between 19 and f then t1.a when t1.d in (select 11 from t1 union select d from t1) then e else e end-t1.c between 19 and c}
+} {}
+do_test randexpr-2.2590 {
+  db eval {SELECT case when ( -c=~t1.b and coalesce((select max(coalesce((select b from t1 where t1.f between case when t1.e between t1.f and 19 then (t1.b) else t1.a end and t1.f),a)) from t1 where 11=t1.f),t1.f)+t1.c=d) and a>t1.c and 19> -19 and exists(select 1 from t1 where (b=17)) and 17 between 19 and 13 then 19*case (d) when c then b else a end when t1.d not in ( -t1.a,f,13) then  -t1.f else (d) end FROM t1 WHERE NOT (11*case when d | (abs(+t1.e-t1.e*b+(select case abs(count(*)) when count(*) then count(*) else cast(avg(t1.c) AS integer) end from t1)*17+(d)-13-11)/abs(c))-f- -t1.c-d | t1.a not between 19 and f then t1.a when t1.d in (select 11 from t1 union select d from t1) then e else e end-t1.c between 19 and c)}
+} {-600}
+do_test randexpr-2.2591 {
+  db eval {SELECT +case when t1.a-17 in (select cast(avg(t1.a*t1.d+(abs( -t1.e)/abs(case when t1.e>t1.a or a>t1.d then t1.f when 13<11 then t1.b else c end))*t1.d) AS integer) from t1 union select count(distinct t1.a) from t1) then t1.c when d in (select +count(distinct b)-case case  - -cast(avg(d) AS integer) when case max(11) when min(17) then count(*) else (cast(avg(a) AS integer)) end then  -count(*) else  -cast(avg(17) AS integer) end when max(19) then count(distinct t1.f) else count(distinct  -t1.d) end | min(e) from t1 union select count(*) from t1) then t1.d else t1.a end FROM t1 WHERE  -+b>=19}
+} {}
+do_test randexpr-2.2592 {
+  db eval {SELECT +case when t1.a-17 in (select cast(avg(t1.a*t1.d+(abs( -t1.e)/abs(case when t1.e>t1.a or a>t1.d then t1.f when 13<11 then t1.b else c end))*t1.d) AS integer) from t1 union select count(distinct t1.a) from t1) then t1.c when d in (select +count(distinct b)-case case  - -cast(avg(d) AS integer) when case max(11) when min(17) then count(*) else (cast(avg(a) AS integer)) end then  -count(*) else  -cast(avg(17) AS integer) end when max(19) then count(distinct t1.f) else count(distinct  -t1.d) end | min(e) from t1 union select count(*) from t1) then t1.d else t1.a end FROM t1 WHERE NOT ( -+b>=19)}
+} {100}
+do_test randexpr-2.2593 {
+  db eval {SELECT +case when t1.a-17 in (select cast(avg(t1.a*t1.d+(abs( -t1.e)/abs(case when t1.e>t1.a or a>t1.d then t1.f when 13<11 then t1.b else c end))*t1.d) AS integer) from t1 union select count(distinct t1.a) from t1) then t1.c when d in (select +count(distinct b)-case case  - -cast(avg(d) AS integer) when case max(11) when min(17) then count(*) else (cast(avg(a) AS integer)) end then  -count(*) else  -cast(avg(17) AS integer) end when max(19) then count(distinct t1.f) else count(distinct  -t1.d) end & min(e) from t1 union select count(*) from t1) then t1.d else t1.a end FROM t1 WHERE NOT ( -+b>=19)}
+} {100}
+do_test randexpr-2.2594 {
+  db eval {SELECT case ~(t1.f)-t1.b-t1.e*c when coalesce((select case when d*13 | d=case when 19 between b+e+a | t1.f and a+11+t1.b*(t1.f) then d else b end then t1.c when e not between 13 and 13 then 19 else a end from t1 where 13=t1.b),c) then t1.c else b end FROM t1 WHERE not t1.d in (select cast(avg(t1.e) AS integer)-~~min(coalesce((select (abs(11)/abs(11+(select count(*)+min(17)+ -cast(avg(t1.d) AS integer) from t1)*13+coalesce((select max(b) from t1 where (t1.c)<>t1.e or e<(a)),13)-d*t1.c))*t1.b from t1 where 19<=e),c))++abs(count(distinct t1.b))+~max(11)*max(11) from t1 union select +max(11) from t1)}
+} {200}
+do_test randexpr-2.2595 {
+  db eval {SELECT case ~(t1.f)-t1.b-t1.e*c when coalesce((select case when d*13 | d=case when 19 between b+e+a | t1.f and a+11+t1.b*(t1.f) then d else b end then t1.c when e not between 13 and 13 then 19 else a end from t1 where 13=t1.b),c) then t1.c else b end FROM t1 WHERE NOT (not t1.d in (select cast(avg(t1.e) AS integer)-~~min(coalesce((select (abs(11)/abs(11+(select count(*)+min(17)+ -cast(avg(t1.d) AS integer) from t1)*13+coalesce((select max(b) from t1 where (t1.c)<>t1.e or e<(a)),13)-d*t1.c))*t1.b from t1 where 19<=e),c))++abs(count(distinct t1.b))+~max(11)*max(11) from t1 union select +max(11) from t1))}
+} {}
+do_test randexpr-2.2596 {
+  db eval {SELECT case ~(t1.f)-t1.b-t1.e*c when coalesce((select case when d*13 & d=case when 19 between b+e+a & t1.f and a+11+t1.b*(t1.f) then d else b end then t1.c when e not between 13 and 13 then 19 else a end from t1 where 13=t1.b),c) then t1.c else b end FROM t1 WHERE not t1.d in (select cast(avg(t1.e) AS integer)-~~min(coalesce((select (abs(11)/abs(11+(select count(*)+min(17)+ -cast(avg(t1.d) AS integer) from t1)*13+coalesce((select max(b) from t1 where (t1.c)<>t1.e or e<(a)),13)-d*t1.c))*t1.b from t1 where 19<=e),c))++abs(count(distinct t1.b))+~max(11)*max(11) from t1 union select +max(11) from t1)}
+} {200}
+do_test randexpr-2.2597 {
+  db eval {SELECT t1.d+(abs(11)/abs(e*~(select  -+ -case min(t1.e) when count(distinct case when (exists(select 1 from t1 where (t1.d not in (19+11,t1.e,t1.c)))) then c*b-t1.a else  -c end) then count(*)+case (cast(avg(a) AS integer))-count(distinct f) when  -(count(*)) then count(distinct e) else max(t1.b) end- -count(distinct 17)* -min(t1.c) else count(distinct  -19) end-count(distinct b) | cast(avg(19) AS integer) from t1)))-~t1.c FROM t1 WHERE c*coalesce((select e from t1 where case when exists(select 1 from t1 where not exists(select 1 from t1 where coalesce((select +b | 13 from t1 where ((17<(select (+~min(coalesce((select t1.c from t1 where case e when 13 then a else 11 end not in ( -b,t1.b,e)),(a)))) from t1)+d-19))),17) not between t1.b and t1.a)) then 11*d else t1.a end in (select c from t1 union select t1.e from t1)),t1.f) not between ( -d) and 13}
+} {701}
+do_test randexpr-2.2598 {
+  db eval {SELECT t1.d+(abs(11)/abs(e*~(select  -+ -case min(t1.e) when count(distinct case when (exists(select 1 from t1 where (t1.d not in (19+11,t1.e,t1.c)))) then c*b-t1.a else  -c end) then count(*)+case (cast(avg(a) AS integer))-count(distinct f) when  -(count(*)) then count(distinct e) else max(t1.b) end- -count(distinct 17)* -min(t1.c) else count(distinct  -19) end-count(distinct b) | cast(avg(19) AS integer) from t1)))-~t1.c FROM t1 WHERE NOT (c*coalesce((select e from t1 where case when exists(select 1 from t1 where not exists(select 1 from t1 where coalesce((select +b | 13 from t1 where ((17<(select (+~min(coalesce((select t1.c from t1 where case e when 13 then a else 11 end not in ( -b,t1.b,e)),(a)))) from t1)+d-19))),17) not between t1.b and t1.a)) then 11*d else t1.a end in (select c from t1 union select t1.e from t1)),t1.f) not between ( -d) and 13)}
+} {}
+do_test randexpr-2.2599 {
+  db eval {SELECT t1.d+(abs(11)/abs(e*~(select  -+ -case min(t1.e) when count(distinct case when (exists(select 1 from t1 where (t1.d not in (19+11,t1.e,t1.c)))) then c*b-t1.a else  -c end) then count(*)+case (cast(avg(a) AS integer))-count(distinct f) when  -(count(*)) then count(distinct e) else max(t1.b) end- -count(distinct 17)* -min(t1.c) else count(distinct  -19) end-count(distinct b) & cast(avg(19) AS integer) from t1)))-~t1.c FROM t1 WHERE c*coalesce((select e from t1 where case when exists(select 1 from t1 where not exists(select 1 from t1 where coalesce((select +b | 13 from t1 where ((17<(select (+~min(coalesce((select t1.c from t1 where case e when 13 then a else 11 end not in ( -b,t1.b,e)),(a)))) from t1)+d-19))),17) not between t1.b and t1.a)) then 11*d else t1.a end in (select c from t1 union select t1.e from t1)),t1.f) not between ( -d) and 13}
+} {701}
+finish_test
diff --git a/test/rbu.test b/test/rbu.test
new file mode 100644
index 0000000000000000000000000000000000000000..40541950758a211cbf6f63f253c553f45f612686
--- /dev/null
+++ b/test/rbu.test
@@ -0,0 +1,17 @@
+# 2014 September 20
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file runs all RBU related tests.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/permutations.test
+
+ifcapable !rbu { finish_test ; return }
+
+run_test_suite rbu
+finish_test
diff --git a/test/rdonly.test b/test/rdonly.test
new file mode 100644
index 0000000000000000000000000000000000000000..404c613b2117363a2b8503ec3591f8989b163470
--- /dev/null
+++ b/test/rdonly.test
@@ -0,0 +1,95 @@
+# 2007 April 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to make sure SQLite treats a database
+# as readonly if its write version is set to  high.
+#
+# $Id: rdonly.test,v 1.2 2008/07/08 10:19:58 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Do not use a codec for tests in this file, as the database file is
+# manipulated directly using tcl scripts (using the [hexio_write] command).
+#
+do_not_use_codec
+
+# Create a database.
+#
+do_test rdonly-1.1 {
+  execsql {
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(1);
+    SELECT * FROM t1;
+  }
+} {1}
+
+# EVIDENCE-OF: R-29639-16887 The sqlite3_db_readonly(D,N) interface
+# returns 1 if the database N of connection D is read-only, 0 if it is
+# read/write, or -1 if N is not the name of a database on connection D.
+#
+do_test rdonly-1.1.1 {
+  sqlite3_db_readonly db main
+} {0}
+
+# Changes the write version from 1 to 3.  Verify that the database
+# can be read but not written.
+#
+do_test rdonly-1.2 {
+  db close
+  hexio_get_int [hexio_read test.db 18 1]
+} 1
+do_test rdonly-1.3 {
+  hexio_write test.db 18 03
+  sqlite3 db test.db
+  execsql {
+    SELECT * FROM t1;
+  }
+} {1}
+do_test rdonly-1.3.1 {
+  sqlite3_db_readonly db main
+} {1}
+do_test rdonly-1.4 {
+  catchsql {
+    INSERT INTO t1 VALUES(2)
+  }
+} {1 {attempt to write a readonly database}}
+
+# Change the write version back to 1.  Verify that the database
+# is read-write again.
+#
+do_test rdonly-1.5 {
+  db close
+  hexio_write test.db 18 01
+  sqlite3 db test.db
+  catchsql {
+    INSERT INTO t1 VALUES(2);
+    SELECT * FROM t1;
+  }
+} {0 {1 2}}
+
+# Now, after connection [db] has loaded the database schema, modify the
+# write-version of the file (and the change-counter, so that the 
+# write-version is reloaded). This way, SQLite does not discover that
+# the database is read-only until after it is locked.
+#
+set ro_version 02
+ifcapable wal { set ro_version 03 }
+do_test rdonly-1.6 {
+  hexio_write test.db 18 $ro_version     ; # write-version
+  hexio_write test.db 24 11223344        ; # change-counter
+  catchsql {
+    INSERT INTO t1 VALUES(2);
+  }
+} {1 {attempt to write a readonly database}}
+
+finish_test
diff --git a/test/readonly.test b/test/readonly.test
new file mode 100644
index 0000000000000000000000000000000000000000..303300e6f15f66409a01305ba958dc50b9d36eab
--- /dev/null
+++ b/test/readonly.test
@@ -0,0 +1,58 @@
+# 2024 March 21
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains tests for using databases in read-only mode on
+# unix.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+if {$tcl_platform(platform)=="windows"} {
+  finish_test
+  return
+}
+source $testdir/lock_common.tcl
+source $testdir/wal_common.tcl
+set ::testprefix readonly
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b);
+  INSERT INTO t1 VALUES(1, 2), (3, 4), (5, 6);
+}
+
+db close
+file attributes test.db -permissions r--r--r--
+
+sqlite3 db test.db
+
+do_catchsql_test 1.1 {
+  INSERT INTO t1 VALUES(7, 8);
+} {1 {attempt to write a readonly database}}
+
+do_execsql_test 1.2 {
+  BEGIN;
+    SELECT * FROM t1;
+} {1 2 3 4 5 6}
+
+# The following attempts to open a read/write fd on the database 20,000 
+# times. And each time instead opens a read-only fd. At one point this
+# was failing to reuse cached fds, causing a "too many open file-descriptors"
+# error.
+do_test 1.3 {
+  for {set ii 0} {$ii < 20000} {incr ii} {
+    sqlite3 db2 test.db
+    db2 close
+  }
+  set {} {} 
+} {}
+
+
+finish_test
diff --git a/test/recover.test b/test/recover.test
new file mode 100644
index 0000000000000000000000000000000000000000..268d3a55b06beaa85255637e49b7630d0e4eb633
--- /dev/null
+++ b/test/recover.test
@@ -0,0 +1,179 @@
+# 2019 April 23
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# TESTRUNNER: shell
+#
+# Test the shell tool ".ar" command.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix recover
+
+ifcapable !vtab {
+  finish_test; return
+}
+set CLI [test_find_cli]
+
+proc compare_result {db1 db2 sql} {
+  set r1 [$db1 eval $sql]
+  set r2 [$db2 eval $sql]
+  if {$r1 != $r2} {
+  puts "r1: $r1"
+  puts "r2: $r2"
+    error "mismatch for $sql"
+  }
+  return ""
+}
+
+proc compare_dbs {db1 db2} {
+  compare_result $db1 $db2 "SELECT sql FROM sqlite_master ORDER BY 1"
+  foreach tbl [$db1 eval {SELECT name FROM sqlite_master WHERE type='table'}] {
+    compare_result $db1 $db2 "SELECT * FROM $tbl"
+  }
+}
+
+proc recover_with_opts {opts} {
+  set cmd ".recover $opts"
+  set fd [open [list |$::CLI test.db $cmd]]
+  fconfigure $fd -translation binary
+  set sql [read $fd]
+  close $fd
+
+  forcedelete test.db2
+  sqlite3 db2 test.db2
+  execsql $sql db2
+  db2 close
+}
+
+proc do_recover_test {tn {tsql {}} {res {}}} {
+  recover_with_opts ""
+
+  sqlite3 db2 test.db2
+  if {$tsql==""} {
+    uplevel [list do_test $tn [list compare_dbs db db2] {}]
+  } else {
+    uplevel [list do_execsql_test -db db2 $tn $tsql $res]
+  }
+  db2 close
+}
+
+set doc {
+  hello
+  world
+}
+do_execsql_test 1.1.1 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+  INSERT INTO t1 VALUES(1, 4, X'1234567800');
+  INSERT INTO t1 VALUES(2, 'test', 8.1);
+  INSERT INTO t1 VALUES(3, $doc, 8.4);
+}
+do_recover_test 1.1.2
+
+do_execsql_test 1.2.1 "
+  DELETE FROM t1;
+  INSERT INTO t1 VALUES(13, 'hello\r\nworld', 13);
+"
+do_recover_test 1.2.2
+
+do_execsql_test 1.3.1 "
+  CREATE TABLE t2(i INTEGER PRIMARY KEY AUTOINCREMENT, b, c);
+  INSERT INTO t2 VALUES(NULL, 1, 2);
+  INSERT INTO t2 VALUES(NULL, 3, 4);
+  INSERT INTO t2 VALUES(NULL, 5, 6);
+  CREATE TABLE t3(i INTEGER PRIMARY KEY AUTOINCREMENT, b, c);
+  INSERT INTO t3 VALUES(NULL, 1, 2);
+  INSERT INTO t3 VALUES(NULL, 3, 4);
+  INSERT INTO t3 VALUES(NULL, 5, 6);
+  DELETE FROM t2;
+"
+do_recover_test 1.3.2
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 2.1.0 {
+  PRAGMA auto_vacuum = 0;
+  CREATE TABLE t1(a, b, c, PRIMARY KEY(b, c)) WITHOUT ROWID;
+  INSERT INTO t1 VALUES(1, 2, 3);
+  INSERT INTO t1 VALUES(4, 5, 6);
+  INSERT INTO t1 VALUES(7, 8, 9);
+}
+
+do_recover_test 2.1.1
+
+do_execsql_test 2.2.0 {
+  PRAGMA writable_schema = 1;
+  DELETE FROM sqlite_master WHERE name='t1';
+}
+do_recover_test 2.2.1 {
+  SELECT name FROM sqlite_master
+} {lost_and_found}
+
+do_execsql_test 2.3.0 {
+  CREATE TABLE lost_and_found(a, b, c);
+}
+do_recover_test 2.3.1 {
+  SELECT name FROM sqlite_master
+} {lost_and_found lost_and_found_0}
+
+do_execsql_test 2.4.0 {
+  CREATE TABLE lost_and_found_0(a, b, c);
+}
+do_recover_test 2.4.1 {
+  SELECT name FROM sqlite_master;
+  SELECT * FROM lost_and_found_1;
+} {lost_and_found lost_and_found_0 lost_and_found_1
+  2 2 3 {} 2 3 1
+  2 2 3 {} 5 6 4
+  2 2 3 {} 8 9 7
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_recover_test 3.0
+
+#-------------------------------------------------------------------------
+reset_db 
+execsql { PRAGMA secure_delete = 0 }
+execsql { PRAGMA auto_vacuum = 0 }
+do_execsql_test 4.0 {
+  CREATE TABLE t1(a, b, c);
+  CREATE TABLE t2(d, e, f);
+  CREATE TABLE t3(g, h, i);
+
+  INSERT INTO t2 VALUES(1, 2, 3);
+  INSERT INTO t2 VALUES('a', 'b', 'c');
+
+  INSERT INTO t3 VALUES('one', 'two', 'three');
+  DROP TABLE t1;
+  DROP TABLE t2;
+}
+
+recover_with_opts ""
+sqlite3 db2 test.db2
+do_execsql_test -db db2 4.1.1 {
+  SELECT name FROM sqlite_schema
+} {t3 lost_and_found}
+do_execsql_test -db db2 4.1.2 {
+  SELECT id, c0, c1, c2 FROM lost_and_found
+} {1 1 2 3    2 a b c}
+db2 close
+
+recover_with_opts -ignore-freelist
+sqlite3 db2 test.db2
+do_execsql_test -db db2 4.2.1 {
+  SELECT name FROM sqlite_schema
+} {t3}
+do_execsql_test -db db2 4.2.2 {
+  SELECT * FROM t3
+} {one two three}
+db2 close
+
+finish_test
diff --git a/test/regexp1.test b/test/regexp1.test
new file mode 100644
index 0000000000000000000000000000000000000000..0401b13d7273b32d237fa4721e2f32b34de3d71e
--- /dev/null
+++ b/test/regexp1.test
@@ -0,0 +1,335 @@
+# 2012 December 31
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+# This file implements test for the REGEXP operator in test_regexp.c.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test regexp1-1.1 {
+  load_static_extension db regexp
+  db eval {
+    CREATE TABLE t1(x INTEGER PRIMARY KEY, y TEXT);
+    INSERT INTO t1 VALUES(1, 'For since by man came death,');
+    INSERT INTO t1 VALUES(2, 'by man came also the resurrection of the dead.');
+    INSERT INTO t1 VALUES(3, 'For as in Adam all die,');
+    INSERT INTO t1 VALUES(4, 'even so in Christ shall all be made alive.');
+
+    SELECT x FROM t1 WHERE y REGEXP '^For ' ORDER BY x;
+  }
+} {1 3}
+
+do_execsql_test regexp1-1.1.2 {
+  SELECT regexpi('abc','ABC');
+} {1}
+do_execsql_test regexp1-1.1.3 {
+  SELECT regexpi('ABC','ABC');
+} {1}
+do_execsql_test regexp1-1.1.4 {
+  SELECT regexpi('ABC','abc');
+} {1}
+do_execsql_test regexp1-1.1.5 {
+  SELECT regexpi('ABC.','ABC');
+} {0}
+
+do_execsql_test regexp1-1.2 {
+  SELECT x FROM t1 WHERE y REGEXP 'by|in' ORDER BY x;
+} {1 2 3 4}
+do_execsql_test regexp1-1.3.1 {
+  SELECT x FROM t1 WHERE y REGEXP 'by|Christ' ORDER BY x;
+} {1 2 4}
+do_execsql_test regexp1-1.3.2 {
+  SELECT x FROM t1 WHERE regexp('by|christ',y) ORDER BY x;
+} {1 2}
+do_execsql_test regexp1-1.3.3 {
+  SELECT x FROM t1 WHERE regexpi('by|christ',y) ORDER BY x;
+} {1 2 4}
+do_execsql_test regexp1-1.3.4 {
+  SELECT x FROM t1 WHERE regexpi('BY|CHRIST',y) ORDER BY x;
+} {1 2 4}
+do_execsql_test regexp1-1.4 {
+  SELECT x FROM t1 WHERE y REGEXP 'shal+ al+' ORDER BY x;
+} {4}
+do_execsql_test regexp1-1.5.1 {
+  SELECT x FROM t1 WHERE y REGEXP 'shall x*y*z*all' ORDER BY x;
+} {4}
+do_execsql_test regexp1-1.5.2 {
+  SELECT x FROM t1 WHERE regexp('shall x*y*z*all',y) ORDER BY x;
+} {4}
+do_execsql_test regexp1-1.5.3 {
+  SELECT x FROM t1 WHERE regexp('SHALL x*y*z*all',y) ORDER BY x;
+} {}
+do_execsql_test regexp1-1.5.4 {
+  SELECT x FROM t1 WHERE regexpi('SHALL x*y*z*all',y) ORDER BY x;
+} {4}
+do_execsql_test regexp1-1.6 {
+  SELECT x FROM t1 WHERE y REGEXP 'shallx?y? ?z?all' ORDER BY x;
+} {4}
+do_execsql_test regexp1-1.7 {
+  SELECT x FROM t1 WHERE y REGEXP 'r{2}' ORDER BY x;
+} {2}
+do_execsql_test regexp1-1.8 {
+  SELECT x FROM t1 WHERE y REGEXP 'r{3}' ORDER BY x;
+} {}
+do_execsql_test regexp1-1.9 {
+  SELECT x FROM t1 WHERE y REGEXP 'r{1}' ORDER BY x;
+} {1 2 3 4}
+do_execsql_test regexp1-1.10 {
+  SELECT x FROM t1 WHERE y REGEXP 'ur{2,10}e' ORDER BY x;
+} {2}
+do_execsql_test regexp1-1.11 {
+  SELECT x FROM t1 WHERE y REGEXP '[Aa]dam' ORDER BY x;
+} {3}
+do_execsql_test regexp1-1.12 {
+  SELECT x FROM t1 WHERE y REGEXP '[^Aa]dam' ORDER BY x;
+} {}
+do_execsql_test regexp1-1.13 {
+  SELECT x FROM t1 WHERE y REGEXP '[^b-zB-Z]dam' ORDER BY x;
+} {3}
+do_execsql_test regexp1-1.14 {
+  SELECT x FROM t1 WHERE y REGEXP 'alive' ORDER BY x;
+} {4}
+do_execsql_test regexp1-1.15 {
+  SELECT x FROM t1 WHERE y REGEXP '^alive' ORDER BY x;
+} {}
+do_execsql_test regexp1-1.16 {
+  SELECT x FROM t1 WHERE y REGEXP 'alive$' ORDER BY x;
+} {}
+do_execsql_test regexp1-1.17 {
+  SELECT x FROM t1 WHERE y REGEXP 'alive.$' ORDER BY x;
+} {4}
+do_execsql_test regexp1-1.18 {
+  SELECT x FROM t1 WHERE y REGEXP 'alive\.$' ORDER BY x;
+} {4}
+do_execsql_test regexp1-1.19 {
+  SELECT x FROM t1 WHERE y REGEXP 'ma[nd]' ORDER BY x;
+} {1 2 4}
+do_execsql_test regexp1-1.20 {
+  SELECT x FROM t1 WHERE y REGEXP '\bma[nd]' ORDER BY x;
+} {1 2 4}
+do_execsql_test regexp1-1.21 {
+  SELECT x FROM t1 WHERE y REGEXP 'ma[nd]\b' ORDER BY x;
+} {1 2}
+do_execsql_test regexp1-1.22 {
+  SELECT x FROM t1 WHERE y REGEXP 'ma\w' ORDER BY x;
+} {1 2 4}
+do_execsql_test regexp1-1.23 {
+  SELECT x FROM t1 WHERE y REGEXP 'ma\W' ORDER BY x;
+} {}
+do_execsql_test regexp1-1.24 {
+  SELECT x FROM t1 WHERE y REGEXP '\sma\w' ORDER BY x;
+} {1 2 4}
+do_execsql_test regexp1-1.25 {
+  SELECT x FROM t1 WHERE y REGEXP '\Sma\w' ORDER BY x;
+} {}
+do_execsql_test regexp1-1.26 {
+  SELECT x FROM t1 WHERE y REGEXP 'alive\S$' ORDER BY x;
+} {4}
+do_execsql_test regexp1-1.27 {
+  SELECT x FROM t1 WHERE y REGEXP
+          '\b(unto|us|son|given|his|name|called|' ||
+          'wonderful|councelor|mighty|god|everlasting|father|' ||
+          'prince|peace|alive)\b';
+} {4}
+
+do_execsql_test regexp1-2.1 {
+  SELECT 'aaaabbbbcccc' REGEXP 'ab*c', 
+         'aaaacccc' REGEXP 'ab*c';
+} {1 1}
+do_execsql_test regexp1-2.2 {
+  SELECT 'aaaabbbbcccc' REGEXP 'ab+c',
+         'aaaacccc' REGEXP 'ab+c';
+} {1 0}
+do_execsql_test regexp1-2.3 {
+  SELECT 'aaaabbbbcccc' REGEXP 'ab?c',
+         'aaaacccc' REGEXP 'ab?c';
+} {0 1}
+do_execsql_test regexp1-2.4 {
+  SELECT 'aaaabbbbbbcccc' REGEXP 'ab{3,5}c',
+         'aaaabbbbbcccc' REGEXP 'ab{3,5}c',
+         'aaaabbbbcccc' REGEXP 'ab{3,5}c',
+         'aaaabbbcccc' REGEXP 'ab{3,5}c',
+         'aaaabbcccc' REGEXP 'ab{3,5}c',
+         'aaaabcccc' REGEXP 'ab{3,5}c'
+} {0 1 1 1 0 0}
+do_execsql_test regexp1-2.5 {
+  SELECT 'aaaabbbbcccc' REGEXP 'a(a|b|c)+c',
+         'aaaabbbbcccc' REGEXP '^a(a|b|c){11}c$',
+         'aaaabbbbcccc' REGEXP '^a(a|b|c){10}c$',
+         'aaaabbbbcccc' REGEXP '^a(a|b|c){9}c$'
+} {1 0 1 0}
+do_execsql_test regexp1-2.6 {
+  SELECT 'aaaabbbbcccc' REGEXP '^a(a|bb|c)+c$',
+         'aaaabbbbcccc' REGEXP '^a(a|bbb|c)+c$',
+         'aaaabbbbcccc' REGEXP '^a(a|bbbb|c)+c$'
+} {1 0 1}
+do_execsql_test regexp1-2.7 {
+  SELECT 'aaaabbbbcccc' REGEXP '^a([ac]+|bb){3}c$',
+         'aaaabbbbcccc' REGEXP '^a([ac]+|bb){4}c$',
+         'aaaabbbbcccc' REGEXP '^a([ac]+|bb){5}c$'
+} {0 1 1}
+
+do_execsql_test regexp1-2.8 {
+  SELECT 'abc*def+ghi.jkl[mno]pqr' REGEXP 'c.d',
+         'abc*def+ghi.jkl[mno]pqr' REGEXP 'c\*d',
+         'abc*def+ghi.jkl[mno]pqr' REGEXP 'f\+g',
+         'abc*def+ghi.jkl[mno]pqr' REGEXP 'i\.j',
+         'abc*def+ghi.jkl[mno]pqr' REGEXP 'l\[mno\]p'
+} {1 1 1 1 1}
+
+do_test regexp1-2.9 {
+  set v1 "abc\ndef"
+  db eval {SELECT $v1 REGEXP '^abc\ndef$'}
+} {1}
+do_test regexp1-2.10 {
+  set v1 "abc\adef"
+  db eval {SELECT $v1 REGEXP '^abc\adef$'}
+} {1}
+do_test regexp1-2.11 {
+  set v1 "abc\tdef"
+  db eval {SELECT $v1 REGEXP '^abc\tdef$'}
+} {1}
+do_test regexp1-2.12 {
+  set v1 "abc\rdef"
+  db eval {SELECT $v1 REGEXP '^abc\rdef$'}
+} {1}
+do_test regexp1-2.13 {
+  set v1 "abc\fdef"
+  db eval {SELECT $v1 REGEXP '^abc\fdef$'}
+} {1}
+do_test regexp1-2.14 {
+  set v1 "abc\vdef"
+  db eval {SELECT $v1 REGEXP '^abc\vdef$'}
+} {1}
+do_execsql_test regexp1-2.15 {
+  SELECT 'abc\def' REGEXP '^abc\\def',
+         'abc(def' REGEXP '^abc\(def',
+         'abc)def' REGEXP '^abc\)def',
+         'abc*def' REGEXP '^abc\*def',
+         'abc.def' REGEXP '^abc\.def',
+         'abc+def' REGEXP '^abc\+def',
+         'abc?def' REGEXP '^abc\?def',
+         'abc[def' REGEXP '^abc\[def',
+         'abc$def' REGEXP '^abc\$',
+         '^def'    REGEXP '\^def',
+         'abc{4}x' REGEXP '^abc\{4\}x$',
+         'abc|def' REGEXP '^abc\|def$'
+} {1 1 1 1 1 1 1 1 1 1 1 1}
+
+do_execsql_test regexp1-2.20 {
+  SELECT 'abc$¢€xyz' REGEXP '^abc\u0024\u00a2\u20acxyz$',
+         'abc$¢€xyz' REGEXP '^abc\u0024\u00A2\u20ACxyz$',
+         'abc$¢€xyz' REGEXP '^abc\x24\xa2\u20acxyz$'
+} {1 1 1}
+do_execsql_test regexp1-2.21 {
+  SELECT 'abc$¢€xyz' REGEXP '^abc[\u0024][\u00a2][\u20ac]xyz$',
+         'abc$¢€xyz' REGEXP '^abc[\u0024\u00A2\u20AC]{3}xyz$',
+         'abc$¢€xyz' REGEXP '^abc[\x24][\xa2\u20ac]+xyz$'
+} {1 1 1}
+do_execsql_test regexp1-2.22 {
+  SELECT 'abc$¢€xyz' REGEXP '^abc[^\u0025-X][^ -\u007f][^\u20ab]xyz$'
+} {1}
+
+# 2022-07-03
+# https://sqlite.org/forum/forumpost/96692f8ba5
+# The REGEXP extension mishandles the prefix search optimization when
+# the prefix contains 3-byte UTF8 characters.
+#
+reset_db
+load_static_extension db regexp
+do_execsql_test regexp1-3.1 {
+  CREATE TABLE t1(id INTEGER PRIMARY KEY, a TEXT);
+  INSERT INTO t1(id, a) VALUES(1, '日本語');
+  SELECT a, hex(a), length(a) FROM t1;
+} {日本語 E697A5E69CACE8AA9E 3}
+do_execsql_test regexp1-3.2 {
+  SELECT * FROM t1 WHERE a='日本語';
+} {1 日本語}
+do_execsql_test regexp1-3.3 {
+  SELECT * FROM t1 WHERE a LIKE '日本語';
+} {1 日本語}
+do_execsql_test regexp1-3.4 {
+  SELECT * FROM t1 wHERE a REGEXP '日本語';
+} {1 日本語}
+
+# 2022-07-03
+# https://sqlite.org/forum/forumpost/96692f8ba5  Issue #2
+# The '$' token in REGEXP contained within other elements.
+#
+do_execsql_test regexp1-4.1 {SELECT 'xab' REGEXP 'a(b$|cd)';} {1}
+do_execsql_test regexp1-4.1b {SELECT 'xab' REGEXP '(b$|cd)';} {1}
+do_execsql_test regexp1-4.2 {SELECT 'xaby' REGEXP 'a(b$|cd)';} {0}
+do_execsql_test regexp1-4.3 {SELECT 'xacd' REGEXP 'a(b$|cd)';} {1}
+do_execsql_test regexp1-4.4 {SELECT 'xacdy' REGEXP 'a(b$|cd)';} {1}
+do_execsql_test regexp1-4.5 {SELECT 'xab' REGEXP 'a(cd|b$)';} {1}
+do_execsql_test regexp1-4.6 {SELECT 'xaby' REGEXP 'a(cd|b$)';} {0}
+do_execsql_test regexp1-4.7 {SELECT 'xacd' REGEXP 'a(cd|b$)';} {1}
+do_execsql_test regexp1-4.8 {SELECT 'xacdy' REGEXP 'a(cd|b$)';} {1}
+do_execsql_test regexp1-4.9 {SELECT 'xab' REGEXP 'a(cd|b$|e)';} {1}
+do_execsql_test regexp1-4.10 {SELECT 'xaby' REGEXP 'a(cd|b$|e)';} {0}
+do_execsql_test regexp1-4.11 {SELECT 'xacd' REGEXP 'a(cd|b$|e)';} {1}
+do_execsql_test regexp1-4.12 {SELECT 'xacdy' REGEXP 'a(cd|b$|e)';} {1}
+
+# 2022-07-18
+# https://sqlite.org/forum/forumpost/57cbaf1d0e
+# Incorrect bytecode for {M,N} when M is zero.
+#
+do_execsql_test regexp1-5.1 {SELECT 'fooX' REGEXP '^[a-z][a-z0-9]{0,30}$';} {0}
+do_execsql_test regexp1-5.2 {SELECT 'fooX' REGEXP '^[a-z][a-z0-9]{0,30}X$';} {1}
+do_execsql_test regexp1-5.3 {SELECT 'fooX' REGEXP '^[a-z][a-z0-9]{0,2}X$';} {1}
+do_execsql_test regexp1-5.4 {SELECT 'foooX' REGEXP '^[a-z][a-z0-9]{0,2}X$';} {0}
+do_execsql_test regexp1-5.5 {SELECT 'foooX' REGEXP '^[a-z][a-z0-9]{0,3}X$';} {1}
+
+# 2022-07-18
+# https://sqlite.org/forum/forumpost/18f87fdcdf
+# Allow "^" to occur inside of "(..)"
+#
+do_execsql_test regexp1-6.1 {SELECT 'foo' REGEXP '[a-z]';} {1}
+do_execsql_test regexp1-6.2 {SELECT 'foo' REGEXP '^[a-z]+$';} {1}
+do_execsql_test regexp1-6.3 {SELECT 'foo' REGEXP '^([a-z]+)$';} {1}
+do_execsql_test regexp1-6.4 {SELECT 'foo' REGEXP '(^[a-z]+)$';} {1}
+do_execsql_test regexp1-6.5 {SELECT 'foo' REGEXP '(^[a-z]+$)';} {1}
+do_execsql_test regexp1-6.6 {SELECT 'abc' REGEXP '(^abc|def)';} {1}
+do_execsql_test regexp1-6.7 {SELECT 'xabc' REGEXP '(^abc|def)';} {0}
+do_execsql_test regexp1-6.8 {SELECT 'def' REGEXP '(^abc|def)';} {1}
+do_execsql_test regexp1-6.9 {SELECT 'xdef' REGEXP '(^abc|def)';} {1}
+
+# 2022-11-17
+# https://sqlite.org/forum/forumpost/3ffe058b04
+#
+do_execsql_test regexp1-7.1 {
+  SELECT char(0x61,0x7ff,0x62) REGEXP char(0x7ff);
+} 1
+do_execsql_test regexp1-7.2 {
+  SELECT char(0x61,0x800,0x62) REGEXP char(0x800);
+} 1
+do_execsql_test regexp1-7.3 {
+  SELECT char(0x61,0xabc,0x62) REGEXP char(0xabc);
+} 1
+do_execsql_test regexp1-7.4 {
+  SELECT char(0x61,0xfff,0x62) REGEXP char(0xfff);
+} 1
+do_execsql_test regexp1-7.5 {
+  SELECT char(0x61,0x1000,0x62) REGEXP char(0x1000);
+} 1
+do_execsql_test regexp1-7.10 {
+  SELECT char(0x61,0xffff,0x62) REGEXP char(0xffff);
+} 1
+do_execsql_test regexp1-7.11 {
+  SELECT char(0x61,0x10000,0x62) REGEXP char(0x10000);
+} 1
+do_execsql_test regexp1-7.12 {
+  SELECT char(0x61,0x10ffff,0x62) REGEXP char(0x10ffff);
+} 1
+
+
+finish_test
diff --git a/test/regexp2.test b/test/regexp2.test
new file mode 100644
index 0000000000000000000000000000000000000000..3e1da9f230d33b87c2c0ca597ef1bf9a7f2b8353
--- /dev/null
+++ b/test/regexp2.test
@@ -0,0 +1,144 @@
+# 2016 February 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+# This file implements tests for the REGEXP operator in ext/misc/regexp.c.
+# It focuses on the use of the sqlite3_set_auxdata()/get_auxdata() APIs.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix regexp2
+
+load_static_extension db regexp
+
+#-------------------------------------------------------------------------
+# Test that triggers do not become confused and use aux-data created by
+# a different trigger for a different REGEXP invocation.
+#
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b, c);
+  CREATE TABLE x1(x, y, z);
+  CREATE TABLE x2(x, y, z);
+
+  CREATE TRIGGER tr1 AFTER INSERT ON t1 BEGIN
+    INSERT INTO x1 VALUES(
+        new.a REGEXP 'abc',
+        new.b REGEXP 'abc',
+        new.c REGEXP 'abc'
+    );
+  END;
+
+  CREATE TRIGGER tr2 AFTER INSERT ON t1 BEGIN
+    INSERT INTO x2 VALUES(
+        new.a REGEXP 'def',
+        new.b REGEXP 'def',
+        new.c REGEXP 'def'
+    );
+  END;
+
+  INSERT INTO t1 VALUES('abc', 'def', 'abc');
+  SELECT * FROM t1;
+} {abc def abc}
+
+do_execsql_test 1.1 { SELECT * FROM x1 } {1 0 1}
+do_execsql_test 1.2 { SELECT * FROM x2 } {0 1 0}
+
+#-------------------------------------------------------------------------
+# Test that if an exception is thrown several triggers deep, all aux-data
+# objects are cleaned up correctly.
+#
+proc sql_error {} {
+  error "SQL error!"
+}
+db func error sql_error
+do_execsql_test 2.0 {
+  CREATE TABLE t2(a, b);
+  CREATE TABLE t3(c, d);
+  CREATE TABLE t4(e, f);
+
+  CREATE TRIGGER t2_tr1 AFTER UPDATE ON t2 BEGIN
+    UPDATE t3 SET d = new.b WHERE c = old.a;
+  END;
+
+  CREATE TRIGGER t3_tr1 AFTER UPDATE ON t3 BEGIN
+    UPDATE t4 SET f = new.d WHERE e = old.c AND new.d REGEXP 'a.*';
+  END;
+
+  CREATE TRIGGER t4_tr1 AFTER UPDATE ON t4 BEGIN
+    SELECT CASE WHEN new.f REGEXP '.*y.*' THEN error() ELSE 1 END;
+  END;
+
+  INSERT INTO t2 VALUES(1, 'a_x_1');
+  INSERT INTO t2 VALUES(2, 'a_y_1');
+
+  INSERT INTO t3 VALUES(1, 'b1');
+  INSERT INTO t3 VALUES(2, 'b2');
+
+  INSERT INTO t4 VALUES(1, 'b1');
+  INSERT INTO t4 VALUES(2, 'b2');
+} {}
+
+do_catchsql_test 2.1 {
+  UPDATE t2 SET a=a+1 WHERE b REGEXP 'a.*' AND b REGEXP '.*1';
+} {1 {SQL error!}}
+
+# Test that the triggers used in the test above work as expected.
+#
+do_execsql_test 2.2 {
+  UPDATE t2 SET b = 'a_abc_1';
+} {}
+do_execsql_test 2.3 {
+  SELECT * FROM t2;
+  SELECT * FROM t3;
+  SELECT * FROM t4;
+} {1 a_abc_1 2 a_abc_1 1 a_abc_1 2 a_abc_1 1 a_abc_1 2 a_abc_1}
+
+#-------------------------------------------------------------------------
+# Test that trigger parameters (i.e. new.* and old.*) refs are not 
+# considered to be constant across separate invocations of the trigger.
+#
+do_execsql_test 3.0 {
+  CREATE TABLE t5(a);
+  CREATE TABLE t6(x);
+
+  CREATE TRIGGER t5tr AFTER DELETE ON t5 BEGIN
+    DELETE FROM t6 WHERE t6.x REGEXP old.a;
+  END;
+
+  INSERT INTO t5 VALUES ('^a.*'), ('^b.*'), ('^c.*');
+  INSERT INTO t6 VALUES ('eab'), ('abc'), ('bcd'), ('cde'), ('dea');
+
+  DELETE FROM t5;
+  SELECT * FROM t6;
+} {eab dea}
+
+# 2021-06-04 Forum https://sqlite.org/forum/forumpost/9104f0d9e7
+#
+do_execsql_test 4.1 {SELECT 'abc' REGEXP '\W'} {0}
+do_execsql_test 4.2 {SELECT 'a c' REGEXP '\W'} {1}
+do_execsql_test 4.3 {SELECT '   ' REGEXP '\W'} {1}
+do_execsql_test 4.4 {SELECT 'abc' REGEXP '\w'} {1}
+do_execsql_test 4.5 {SELECT 'a c' REGEXP '\w'} {1}
+do_execsql_test 4.6 {SELECT '   ' REGEXP '\w'} {0}
+do_execsql_test 4.7 {SELECT 'abc' REGEXP '\D'} {1}
+do_execsql_test 4.8 {SELECT 'abc' REGEXP '[^a-z]'} {0}
+do_execsql_test 4.9 {SELECT 'a c' REGEXP '[^a-z]'} {1}
+do_execsql_test 4.10 {SELECT '   ' REGEXP '[^a-z]'} {1}
+do_execsql_test 4.11 {SELECT 'abc' REGEXP '[a-z]'} {1}
+do_execsql_test 4.12 {SELECT 'a c' REGEXP '[a-z]'} {1}
+do_execsql_test 4.13 {SELECT '   ' REGEXP '[a-z]'} {0}
+do_execsql_test 4.14 {SELECT 'abc' REGEXP '[^a-z]{2}'} {0}
+do_execsql_test 4.15 {SELECT 'a c' REGEXP '[^a-z]{2}'} {0}
+do_execsql_test 4.16 {SELECT '   ' REGEXP '[^a-z]{2}'} {1}
+do_execsql_test 4.17 {SELECT 'abc' REGEXP '\W{1,1}'} {0}
+do_execsql_test 4.18 {SELECT 'abc' REGEXP '\W{1}'} {0}
+
+finish_test
diff --git a/test/reindex.test b/test/reindex.test
new file mode 100644
index 0000000000000000000000000000000000000000..88e489b0b1888d3bbd714c5ad5892ed1163b6431
--- /dev/null
+++ b/test/reindex.test
@@ -0,0 +1,205 @@
+# 2004 November 5
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+# This file implements tests for the REINDEX command.
+#
+# $Id: reindex.test,v 1.4 2008/07/12 14:52:20 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix reindex
+
+# There is nothing to test if REINDEX is disable for this build.
+#
+ifcapable {!reindex} {
+  finish_test
+  return
+}
+
+# Basic sanity checks.
+#
+do_test reindex-1.1 {
+  execsql {
+    CREATE TABLE t1(a,b);
+    INSERT INTO t1 VALUES(1,2);
+    INSERT INTO t1 VALUES(3,4);
+    CREATE INDEX i1 ON t1(a);
+    REINDEX;
+  }
+} {}
+integrity_check reindex-1.2
+do_test reindex-1.3 {
+  execsql {
+    REINDEX t1;
+  }
+} {}
+integrity_check reindex-1.4
+do_test reindex-1.5 {
+  execsql {
+    REINDEX i1;
+  }
+} {}
+integrity_check reindex-1.6
+do_test reindex-1.7 {
+  execsql {
+    REINDEX main.t1;
+  }
+} {}
+do_test reindex-1.8 {
+  execsql {
+    REINDEX main.i1;
+  }
+} {}
+do_test reindex-1.9 {
+  catchsql {
+    REINDEX bogus
+  }
+} {1 {unable to identify the object to be reindexed}}
+
+# Set up a table for testing that includes several different collating
+# sequences including some that we can modify.
+#
+do_test reindex-2.1 {
+  proc c1 {a b} {
+    return [expr {-[string compare $a $b]}]
+  }
+  proc c2 {a b} {
+    return [expr {-[string compare [string tolower $a] [string tolower $b]]}]
+  }
+  db collate c1 c1
+  db collate c2 c2
+  execsql {
+    CREATE TABLE t2(
+      a TEXT PRIMARY KEY COLLATE c1,
+      b TEXT UNIQUE COLLATE c2,
+      c TEXT COLLATE nocase,
+      d TEST COLLATE binary
+    );
+    INSERT INTO t2 VALUES('abc','abc','abc','abc');
+    INSERT INTO t2 VALUES('ABCD','ABCD','ABCD','ABCD');
+    INSERT INTO t2 VALUES('bcd','bcd','bcd','bcd');
+    INSERT INTO t2 VALUES('BCDE','BCDE','BCDE','BCDE');
+    SELECT a FROM t2 ORDER BY a;
+  }
+} {bcd abc BCDE ABCD}
+do_test reindex-2.2 {
+  execsql {
+    SELECT b FROM t2 ORDER BY b;
+  }
+} {BCDE bcd ABCD abc}
+do_test reindex-2.3 {
+  execsql {
+    SELECT c FROM t2 ORDER BY c;
+  }
+} {abc ABCD bcd BCDE}
+do_test reindex-2.4 {
+  execsql {
+    SELECT d FROM t2 ORDER BY d;
+  }
+} {ABCD BCDE abc bcd}
+
+# Change a collating sequence function.  Verify that REINDEX rebuilds
+# the index.
+#
+do_test reindex-2.5 {
+  proc c1 {a b} {
+    return [string compare $a $b]
+  }
+  execsql {
+    SELECT a FROM t2 ORDER BY a;
+  }
+} {bcd abc BCDE ABCD}
+ifcapable {integrityck} {
+  do_test reindex-2.5.1 {
+    string equal ok [execsql {PRAGMA integrity_check}]
+  } {0}
+}
+do_test reindex-2.6 {
+  execsql {
+    REINDEX c2;
+    SELECT a FROM t2 ORDER BY a;
+  }
+} {bcd abc BCDE ABCD}
+do_test reindex-2.7 {
+  execsql {
+    REINDEX t1;
+    SELECT a FROM t2 ORDER BY a;
+  }
+} {bcd abc BCDE ABCD}
+do_test reindex-2.8 {
+  execsql {
+    REINDEX c1;
+    SELECT a FROM t2 ORDER BY a;
+  }
+} {ABCD BCDE abc bcd}
+integrity_check reindex-2.8.1
+
+# Try to REINDEX an index for which the collation sequence is not available.
+#
+do_test reindex-3.1 {
+  sqlite3 db2 test.db
+  catchsql {
+    REINDEX c1;
+  } db2
+} {1 {no such collation sequence: c1}}
+do_test reindex-3.2 {
+  proc need_collate {collation} {
+    db2 collate c1 c1
+  }
+  db2 collation_needed need_collate
+  catchsql {
+    REINDEX c1;
+  } db2
+} {0 {}}
+do_test reindex-3.3 {
+  catchsql {
+    REINDEX;
+  } db2
+} {1 {no such collation sequence: c2}}
+
+do_test reindex-3.99 {
+  db2 close
+} {}
+
+#-------------------------------------------------------------------------
+foreach {tn wo} {1 "" 2 "WITHOUT ROWID"} {
+  reset_db
+  eval [string map [list %without_rowid% $wo] {
+    do_execsql_test 4.$tn.0 {
+      CREATE TABLE t0 (
+        c0 INTEGER PRIMARY KEY DESC, 
+        c1 UNIQUE DEFAULT NULL
+      ) %without_rowid% ;
+      INSERT INTO t0(c0) VALUES (1), (2), (3), (4), (5);
+      SELECT c0 FROM t0 WHERE c1 IS NULL ORDER BY 1;
+    } {1 2 3 4 5}
+    
+    do_execsql_test 4.$tn.1 {
+      REINDEX;
+    }
+    
+    do_execsql_test 4.$tn.2 {
+      SELECT c0 FROM t0 WHERE c1 IS NULL ORDER BY 1;
+    } {1 2 3 4 5}
+
+    do_execsql_test 4.$tn.3 {
+      SELECT c0 FROM t0 WHERE c1 IS NULL AND c0 IN (1,2,3,4,5);
+    } {1 2 3 4 5}
+
+    do_execsql_test 4.$tn.4 {
+      PRAGMA integrity_check;
+    } {ok}
+  }]
+}
+
+
+
+finish_test
diff --git a/test/resetdb.test b/test/resetdb.test
new file mode 100644
index 0000000000000000000000000000000000000000..f2d325164ca364f9ea97fb1580fe3bd56ac90040
--- /dev/null
+++ b/test/resetdb.test
@@ -0,0 +1,300 @@
+# 2018-04-28
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# Test cases for SQLITE_DBCONFIG_RESET_DATABASE
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix resetdb
+
+do_not_use_codec
+
+ifcapable !vtab||!compound {
+  finish_test
+  return
+}
+
+# In the "inmemory_journal" permutation, each new connection executes 
+# "PRAGMA journal_mode = memory". This fails with SQLITE_BUSY if attempted
+# on a wal mode database with existing connections. For this and a few
+# other reasons, this test is not run as part of "inmemory_journal".
+#
+# Permutation "journaltest" does not support wal mode.
+#
+if {[permutation]=="inmemory_journal"
+ || [permutation]=="journaltest"
+} {
+  finish_test
+  return
+}
+
+# Create a sample database
+do_execsql_test 100 {
+  PRAGMA auto_vacuum = 0;
+  PRAGMA page_size=4096;
+  CREATE TABLE t1(a,b);
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<20)
+    INSERT INTO t1(a,b) SELECT x, randomblob(300) FROM c;
+  CREATE INDEX t1a ON t1(a);
+  CREATE INDEX t1b ON t1(b);
+  SELECT sum(a), sum(length(b)) FROM t1;
+  PRAGMA integrity_check;
+  PRAGMA journal_mode;
+  PRAGMA page_count;
+} {210 6000 ok delete 8}
+
+# Verify that the same content is seen from a separate database connection
+sqlite3 db2 test.db
+do_test 110 {
+  execsql {
+    SELECT sum(a), sum(length(b)) FROM t1;
+    PRAGMA integrity_check;
+    PRAGMA journal_mode;
+    PRAGMA page_count;
+  } db2
+} {210 6000 ok delete 8}
+
+do_test 200 {
+  # Thoroughly corrupt the database file by overwriting the first
+  # page with randomness.
+  sqlite3_db_config db DEFENSIVE 0
+  catchsql {
+    UPDATE sqlite_dbpage SET data=randomblob(4096) WHERE pgno=1;
+    PRAGMA quick_check;
+  }
+} {1 {file is not a database}}
+do_test 201 {
+  catchsql {
+    PRAGMA quick_check;
+  } db2
+} {1 {file is not a database}}
+
+do_test 210 {
+  # Reset the database file using SQLITE_DBCONFIG_RESET_DATABASE
+  sqlite3_db_config db RESET_DB 1
+  db eval VACUUM
+  sqlite3_db_config db RESET_DB 0
+
+  # If using sqlite3_prepare() instead of _v2() or _v3(), the block 
+  # below raises an SQLITE_SCHEMA error. The following fixes this.
+  if {[permutation]=="prepare"} { catchsql "SELECT * FROM sqlite_master" db2 }
+
+  # Verify that the reset took, even on the separate database connection
+  catchsql {
+     PRAGMA page_count;
+     PRAGMA page_size;
+     PRAGMA quick_check;
+     PRAGMA journal_mode;
+  } db2
+} {0 {1 4096 ok delete}}
+
+# Delete the old connections and database and start over again
+# with a different page size and in WAL mode.
+#
+db close
+db2 close
+forcedelete test.db
+sqlite3 db test.db
+do_execsql_test 300 {
+  PRAGMA auto_vacuum = 0;
+  PRAGMA page_size=8192;
+  PRAGMA journal_mode=WAL;
+  CREATE TABLE t1(a,b);
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<20)
+    INSERT INTO t1(a,b) SELECT x, randomblob(1300) FROM c;
+  CREATE INDEX t1a ON t1(a);
+  CREATE INDEX t1b ON t1(b);
+  SELECT sum(a), sum(length(b)) FROM t1;
+  PRAGMA integrity_check;
+  PRAGMA journal_mode;
+  PRAGMA page_size;
+  PRAGMA page_count;
+} {wal 210 26000 ok wal 8192 12}
+sqlite3 db2 test.db
+do_test 310 {
+  execsql {
+    SELECT sum(a), sum(length(b)) FROM t1;
+    PRAGMA integrity_check;
+    PRAGMA journal_mode;
+    PRAGMA page_size;
+    PRAGMA page_count;
+  } db2
+} {210 26000 ok wal 8192 12}
+
+# Corrupt the database again
+sqlite3_db_config db DEFENSIVE 0
+do_catchsql_test 320 {
+  UPDATE sqlite_dbpage SET data=randomblob(8192) WHERE pgno=1;
+  PRAGMA quick_check
+} {1 {file is not a database}}
+
+do_test 330 {
+  catchsql {
+    PRAGMA quick_check
+  } db2
+} {1 {file is not a database}}
+
+db2 cache flush         ;# Required by permutation "prepare".
+
+# Reset the database yet again.  Verify that the page size and
+# journal mode are preserved.
+#
+do_test 400 {
+  sqlite3_db_config db RESET_DB 1
+  db eval VACUUM
+  sqlite3_db_config db RESET_DB 0
+  catchsql {
+     PRAGMA page_count;
+     PRAGMA page_size;
+     PRAGMA journal_mode;
+     PRAGMA quick_check;
+  } db2
+} {0 {1 8192 wal ok}}
+db2 close
+
+# Reset the database yet again. This time immediately after it is closed
+# and reopened. So that the VACUUM is the first statement run.
+#
+db close
+sqlite3 db test.db
+do_test 500 {
+  sqlite3_finalize [
+    sqlite3_prepare db "SELECT 1 FROM sqlite_master LIMIT 1" -1 tail
+  ]
+  sqlite3_db_config db RESET_DB 1
+  db eval VACUUM
+  sqlite3_db_config db RESET_DB 0
+  sqlite3 db2 test.db
+  catchsql {
+     PRAGMA page_count;
+     PRAGMA page_size;
+     PRAGMA journal_mode;
+     PRAGMA quick_check;
+  } db2
+} {0 {1 8192 wal ok}}
+db2 close
+
+#-------------------------------------------------------------------------
+reset_db
+sqlite3 db2 test.db
+do_execsql_test 600 {
+  PRAGMA journal_mode = wal;
+  CREATE TABLE t1(a);
+  INSERT INTO t1 VALUES(1), (2), (3), (4);
+} {wal}
+
+do_execsql_test -db db2 610 {
+  SELECT * FROM t1
+} {1 2 3 4}
+
+do_test 620 {
+  set res [list]
+  db2 eval {SELECT a FROM t1} {
+    lappend res $a
+    if {$a==3} {
+      sqlite3_db_config db RESET_DB 1
+      db eval VACUUM
+      sqlite3_db_config db RESET_DB 0
+    }
+  }
+
+  set res
+} {1 2 3 4}
+
+do_execsql_test -db db2 630 {
+  SELECT * FROM sqlite_master
+} {}
+
+#-------------------------------------------------------------------------
+db2 close
+reset_db
+
+do_execsql_test 700 {
+  PRAGMA page_size=512;
+  PRAGMA auto_vacuum = 0;
+  CREATE TABLE t1(a,b,c);
+  CREATE INDEX t1a ON t1(a);
+  CREATE INDEX t1bc ON t1(b,c);
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<10)
+    INSERT INTO t1(a,b,c) SELECT x, randomblob(100),randomblob(100) FROM c;
+  PRAGMA page_count;
+  PRAGMA integrity_check;
+} {19 ok}
+
+if {[nonzero_reserved_bytes]} {
+  finish_test
+  return
+}
+
+sqlite3_db_config db DEFENSIVE 0
+do_execsql_test 710 {
+  UPDATE sqlite_dbpage SET data=
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pgno=1;
+}
+
+do_execsql_test 720 {
+  PRAGMA integrity_check;
+} {ok}
+
+do_test 730 {
+  sqlite3_db_config db RESET_DB 1
+  db eval VACUUM
+  sqlite3_db_config db RESET_DB 0
+} {0}
+
+do_execsql_test 740 {
+  PRAGMA page_count;
+  PRAGMA integrity_check;
+} {1 ok}
+
+#-------------------------------------------------------------------------
+ifcapable utf16 {
+  reset_db
+  do_execsql_test 800 {
+    PRAGMA encoding = 'utf8';
+    CREATE TABLE t1(a, b);
+    PRAGMA encoding;
+  } {UTF-8}
+  
+  db close
+  sqlite3 db test.db
+
+  sqlite3 db2 test.db
+  do_execsql_test -db db2 810 {
+    CREATE TEMP TABLE t2(x);
+    INSERT INTO t2 VALUES('hello world');
+    SELECT name FROM sqlite_schema;
+  } {t1}
+  do_test 820 {
+    db eval "PRAGMA encoding = 'utf16'"
+    sqlite3_db_config db RESET_DB 1
+  } {1}
+  do_test 830 {
+    db eval VACUUM
+    sqlite3_db_config db RESET_DB 0
+  } {0}
+  do_test 840 {
+    string range [db eval {
+      CREATE TABLE t1(a, b);
+      INSERT INTO t1 VALUES('one', 'two');
+      PRAGMA encoding;
+    }] 0 5
+  } {UTF-16}
+
+  do_test 850 {
+    catchsql { SELECT * FROM t1; } db2 
+  } {1 {attached databases must use the same text encoding as main database}}
+  do_test 860 {
+    catchsql { SELECT * FROM t2; } db2 
+  } {1 {attached databases must use the same text encoding as main database}}
+}
+
+finish_test
diff --git a/test/resolver01.test b/test/resolver01.test
new file mode 100644
index 0000000000000000000000000000000000000000..59bb3c021a7c25f5547e92924ffee6cb2860e09b
--- /dev/null
+++ b/test/resolver01.test
@@ -0,0 +1,216 @@
+# 2013-04-13
+#
+# The author disclaims copyright to this source code. In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file tests features of the name resolver (the component that
+# figures out what identifiers in the SQL statement refer to) that
+# were fixed by ticket [2500cdb9be].
+#
+# See also tickets [1c69be2daf] and [f617ea3125] from 2013-08-14.
+#
+# Also a fuzzer-discovered problem on 2015-04-23.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# "ORDER BY y" binds to the output result-set column named "y"
+# if available.  If no output column is named "y", then try to
+# bind against an input column named "y".
+#
+# This is classical SQL92 behavior.
+#
+do_test resolver01-1.1 {
+  catchsql {
+    CREATE TABLE t1(x, y); INSERT INTO t1 VALUES(11,22);
+    CREATE TABLE t2(y, z); INSERT INTO t2 VALUES(33,44);
+    SELECT 1 AS y FROM t1, t2 ORDER BY y;
+  }
+} {0 1}
+do_test resolver01-1.2 {
+  catchsql {
+    SELECT 1 AS yy FROM t1, t2 ORDER BY y;
+  }
+} {1 {ambiguous column name: y}}
+do_test resolver01-1.3 {
+  catchsql {
+    CREATE TABLE t3(x,y); INSERT INTO t3 VALUES(11,44),(33,22);
+    SELECT x AS y FROM t3 ORDER BY y;
+  }
+} {0 {11 33}}
+do_test resolver01-1.4 {
+  catchsql {
+    SELECT x AS yy FROM t3 ORDER BY y;
+  }
+} {0 {33 11}}
+
+# SQLite allows the WHERE clause to reference output columns if there is
+# no other way to resolve the name.
+#
+do_test resolver01-1.5 {
+  catchsql {
+    SELECT x AS yy FROM t3 ORDER BY yy;
+  }
+} {0 {11 33}}
+do_test resolver01-1.6 {
+  catchsql {
+    SELECT x AS yy FROM t3 ORDER BY 1;
+  }
+} {0 {11 33}}
+
+# The "ORDER BY y COLLATE nocase" form works the same as "ORDER BY y".
+# The "y" binds more tightly to output columns than to input columns.
+#
+# This is for compatibility with SQL92 and with historical SQLite behavior.
+# Note that PostgreSQL considers "y COLLATE nocase" to be an expression
+# and thus PostgreSQL treats this case as if it where the 3.x case below.
+#
+do_test resolver01-2.1 {
+  catchsql {
+    SELECT 2 AS y FROM t1, t2 ORDER BY y COLLATE nocase;
+  }
+} {0 2}
+do_test resolver01-2.2 {
+  catchsql {
+    SELECT 2 AS yy FROM t1, t2 ORDER BY y COLLATE nocase;
+  }
+} {1 {ambiguous column name: y}}
+do_test resolver01-2.3 {
+  catchsql {
+    SELECT x AS y FROM t3 ORDER BY y COLLATE nocase;
+  }
+} {0 {11 33}}
+do_test resolver01-2.4 {
+  catchsql {
+    SELECT x AS yy FROM t3 ORDER BY y COLLATE nocase;
+  }
+} {0 {33 11}}
+do_test resolver01-2.5 {
+  catchsql {
+    SELECT x AS yy FROM t3 ORDER BY yy COLLATE nocase;
+  }
+} {0 {11 33}}
+do_test resolver01-2.6 {
+  catchsql {
+    SELECT x AS yy FROM t3 ORDER BY 1 COLLATE nocase;
+  }
+} {0 {11 33}}
+
+# But if the form is "ORDER BY expr" then bind more tightly to the
+# the input column names and only use the output column names if no
+# input column name matches.
+#
+# This is SQL99 behavior, as implemented by PostgreSQL and MS-SQL.
+# Note that Oracle works differently.
+#
+do_test resolver01-3.1 {
+  catchsql {
+    SELECT 3 AS y FROM t1, t2 ORDER BY +y;
+  }
+} {1 {ambiguous column name: y}}
+do_test resolver01-3.2 {
+  catchsql {
+    SELECT 2 AS yy FROM t1, t2 ORDER BY +y;
+  }
+} {1 {ambiguous column name: y}}
+do_test resolver01-3.3 {
+  catchsql {
+    SELECT x AS y FROM t3 ORDER BY +y;
+  }
+} {0 {33 11}}
+do_test resolver01-3.4 {
+  catchsql {
+    SELECT x AS yy FROM t3 ORDER BY +y;
+  }
+} {0 {33 11}}
+do_test resolver01-3.5 {
+  catchsql {
+    SELECT x AS yy FROM t3 ORDER BY +yy
+  }
+} {0 {11 33}}
+
+# This is the test case given in ticket [f617ea3125e9] (with table name
+# changed from "t1" to "t4".  The behavior of (1) and (3) match with
+# PostgreSQL, but we intentionally break with PostgreSQL to provide
+# SQL92 behavior for case (2).
+#
+do_execsql_test resolver01-4.1 {
+  CREATE TABLE t4(m CHAR(2));
+  INSERT INTO t4 VALUES('az');
+  INSERT INTO t4 VALUES('by');
+  INSERT INTO t4 VALUES('cx');
+  SELECT '1', substr(m,2) AS m FROM t4 ORDER BY m;
+  SELECT '2', substr(m,2) AS m FROM t4 ORDER BY m COLLATE binary;
+  SELECT '3', substr(m,2) AS m FROM t4 ORDER BY lower(m);
+} {1 x 1 y 1 z 2 x 2 y 2 z 3 z 3 y 3 x}
+
+##########################################################################
+# Test cases for ticket [1c69be2dafc28]:  Make sure the GROUP BY binds
+# more tightly to the input tables in all cases.
+#
+# This first case case has been wrong in SQLite for time out of mind.
+# For SQLite version 3.7.17 the answer was two rows, which is wrong.
+#
+do_execsql_test resolver01-5.1 {
+  CREATE TABLE t5(m CHAR(2));
+  INSERT INTO t5 VALUES('ax');
+  INSERT INTO t5 VALUES('bx');
+  INSERT INTO t5 VALUES('cy');
+  SELECT count(*), substr(m,2,1) AS m FROM t5 GROUP BY m ORDER BY 1, 2;
+} {1 x 1 x 1 y}
+
+# This case is unambiguous and has always been correct.
+#
+do_execsql_test resolver01-5.2 {
+  SELECT count(*), substr(m,2,1) AS mx FROM t5 GROUP BY m ORDER BY 1, 2;
+} {1 x 1 x 1 y}
+
+# This case is not allowed in standard SQL, but SQLite allows and does
+# the sensible thing.
+#
+do_execsql_test resolver01-5.3 {
+  SELECT count(*), substr(m,2,1) AS mx FROM t5 GROUP BY mx ORDER BY 1, 2;
+} {1 y 2 x}
+do_execsql_test resolver01-5.4 {
+  SELECT count(*), substr(m,2,1) AS mx FROM t5
+   GROUP BY substr(m,2,1) ORDER BY 1, 2;
+} {1 y 2 x}
+
+# These test case weere provided in the 2013-08-14 email from Rob Golsteijn
+# that originally reported the problem of ticket [1c69be2dafc28].
+#
+do_execsql_test resolver01-6.1 {
+  CREATE TABLE t61(name);
+  SELECT min(name) FROM t61 GROUP BY lower(name);
+} {}
+do_execsql_test resolver01-6.2 {
+  SELECT min(name) AS name FROM t61 GROUP BY lower(name); 
+} {}
+do_execsql_test resolver01-6.3 {
+  CREATE TABLE t63(name);
+  INSERT INTO t63 VALUES (NULL);
+  INSERT INTO t63 VALUES ('abc');
+  SELECT count(),
+       NULLIF(name,'abc') AS name
+    FROM t63
+   GROUP BY lower(name);
+} {1 {} 1 {}}
+
+do_execsql_test resolver01-7.1 {
+  SELECT 2 AS x WHERE (SELECT x AS y WHERE 3>y);
+} {2}
+do_execsql_test resolver01-7.2 {
+  SELECT 2 AS x WHERE (SELECT x AS y WHERE 1>y);
+} {}
+
+
+
+
+finish_test
diff --git a/test/returning1.test b/test/returning1.test
new file mode 100644
index 0000000000000000000000000000000000000000..e7be7c65a3e997a3e520c90660bfdb6c6b4dfa70
--- /dev/null
+++ b/test/returning1.test
@@ -0,0 +1,547 @@
+# 2021-01-28
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is the new RETURNING clause
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix returning1
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY,b,c DEFAULT 'pax');
+  INSERT INTO t1(b) VALUES(10),('happy'),(NULL) RETURNING a,b,c;
+} {1 10 pax 2 happy pax 3 {} pax}
+do_execsql_test 1.1 {
+  SELECT * FROM t1;
+} {1 10 pax 2 happy pax 3 {} pax}
+do_execsql_test 1.2 {
+  INSERT INTO t1(b,c) VALUES(5,99) RETURNING b,c,a,rowid;
+} {5 99 4 4}
+do_execsql_test 1.3 {
+  SELECT * FROM t1;
+} {1 10 pax 2 happy pax 3 {} pax 4 5 99}
+do_execsql_test 1.4 {
+  INSERT INTO t1 DEFAULT VALUES RETURNING *;
+} {5 {} pax}
+do_execsql_test 1.5 {
+  SELECT * FROM t1;
+} {1 10 pax 2 happy pax 3 {} pax 4 5 99 5 {} pax}
+do_execsql_test 1.6 {
+  CREATE TABLE t2(x,y,z);
+  INSERT INTO t2 VALUES(11,12,13),(21,'b','c'),(31,'b-value',4.75);
+}
+do_execsql_test 1.7 {
+  INSERT INTO t1 SELECT * FROM t2 RETURNING *;
+} {11 12 13 21 b c 31 b-value 4.75}
+do_execsql_test 1.8 {
+  SELECT *, '|' FROM t1;
+} {1 10 pax | 2 happy pax | 3 {} pax | 4 5 99 | 5 {} pax | 11 12 13 | 21 b c | 31 b-value 4.75 |}
+
+do_execsql_test 2.1 {
+  UPDATE t1 SET c='bellum' WHERE c='pax' RETURNING rowid, b, '|';
+} {1 10 | 2 happy | 3 {} | 5 {} |}
+do_execsql_test 2.2 {
+  SELECT *, '|' FROM t1;
+} {1 10 bellum | 2 happy bellum | 3 {} bellum | 4 5 99 | 5 {} bellum | 11 12 13 | 21 b c | 31 b-value 4.75 |}
+
+do_execsql_test 3.1 {
+  DELETE FROM t1 WHERE c='bellum' RETURNING rowid, *, '|';
+} {1 1 10 bellum | 2 2 happy bellum | 3 3 {} bellum | 5 5 {} bellum |}
+do_execsql_test 3.2 {
+  SELECT *, '|' FROM t1;
+} {4 5 99 | 11 12 13 | 21 b c | 31 b-value 4.75 |}
+
+do_execsql_test 4.1 {
+  CREATE TABLE t4(a INT, b INT DEFAULT 1234, c INT DEFAULT -16);
+  CREATE UNIQUE INDEX t4a ON t4(a);
+  INSERT INTO t4(a,b,c) VALUES(1,2,3);
+} {}
+do_execsql_test 4.2 {
+  INSERT INTO t4(a,b,c) VALUES(1,22,33)
+  ON CONFLICT(a) DO UPDATE SET b=44
+  RETURNING *;
+} {1 44 3}
+do_execsql_test 4.3 {
+  SELECT * FROM t4;
+} {1 44 3}
+do_execsql_test 4.4 {
+  DELETE FROM t4;
+  INSERT INTO t4 VALUES(1,2,3),(4,5,6),(7,8,9);
+} {}
+do_execsql_test 4.5 {
+  INSERT INTO t4(a,b,c) VALUES(2,3,4),(4,5,6),(5,6,7)
+  ON CONFLICT(a) DO UPDATE SET b=100
+  RETURNING *, '|';
+} {2 3 4 | 4 100 6 | 5 6 7 |}
+
+#-------------------------------------------------------------------------
+# Test RETURNING on a table with virtual columns.
+#
+reset_db
+do_execsql_test 5.0 {
+  CREATE TABLE t1(xyz);
+  CREATE TABLE t2(a as (1+1), b);
+}
+
+do_execsql_test 5.1 {
+  UPDATE t2 SET b='123' WHERE b='abc' RETURNING (SELECT b FROM t1);
+} {}
+
+do_execsql_test 5.2 {
+  INSERT INTO t2(b) VALUES('abc');
+}
+
+do_execsql_test 5.3 {
+  UPDATE t2 SET b='123' WHERE b='abc' RETURNING (SELECT b FROM t1);
+} {{}}
+
+do_execsql_test 5.4 {
+  INSERT INTO t2(b) VALUES('abc');
+  INSERT INTO t1(xyz) VALUES(1);
+  UPDATE t2 SET b='123' WHERE b='abc' RETURNING b;
+} {123}
+
+do_execsql_test 5.5 {
+  INSERT INTO t2(b) VALUES('abc');
+  UPDATE t2 SET b='123' WHERE b='abc' RETURNING (SELECT b FROM t1);
+} {123}
+
+# Ticket 132994c8b1063bfb
+reset_db
+do_catchsql_test 6.0 {
+  CREATE TABLE t1(id INTEGER PRIMARY KEY);
+  CREATE TABLE t2(x INT, y INT);
+  INSERT INTO t1 VALUES(1),(2),(4),(9);
+  INSERT INTO t2 VALUES(3,7), (4,25), (5,99);
+  UPDATE t1 SET id=id+y FROM t2 WHERE t1.id=t2.x RETURNING t2.*;
+} {1 {RETURNING may not use "TABLE.*" wildcards}}
+do_catchsql_test 6.1 {
+  UPDATE t1 SET id=id+y FROM t2 WHERE t1.id=t2.x RETURNING *, '|';
+  SELECT * FROM t1 ORDER BY id;
+} {0 {29 | 1 2 9 29}}
+
+# Forum https://sqlite.org/forum/forumpost/85aef8bc01
+# Do not silently ignore nonsense table names in the RETURNING clause.
+# Raise an error.
+#
+reset_db
+do_execsql_test 7.1 {
+  CREATE TABLE t1(a INT, b INT);
+  CREATE TABLE t2(x INT, y INT);
+  INSERT INTO t1(a,b) VALUES(1,2);
+  INSERT INTO t2(x,y) VALUES(1,30);
+} {}
+do_catchsql_test 7.2 {
+  UPDATE t1 SET b=b+1 RETURNING new.b;
+} {1 {no such column: new.b}}
+do_catchsql_test 7.3 {
+  UPDATE t1 SET b=b+1 RETURNING old.b;
+} {1 {no such column: old.b}}
+do_catchsql_test 7.4 {
+  UPDATE t1 SET b=b+1 RETURNING another.b;
+} {1 {no such column: another.b}}
+do_catchsql_test 7.5 {
+  UPDATE t1 SET b=b+y FROM t2 WHERE t2.x=t1.a RETURNING t2.x;
+} {1 {no such column: t2.x}}
+do_catchsql_test 7.6 {
+  UPDATE t1 SET b=b+y FROM t2 WHERE t2.x=t1.a RETURNING t1.b;
+} {0 32}
+
+# This is goofy:  The RETURNING clause does not honor the alias
+# for the table being modified.  This might change in the future.
+#
+do_catchsql_test 7.7 {
+  UPDATE t1 AS alias SET b=123 RETURNING alias.b;
+} {1 {no such column: alias.b}}
+do_catchsql_test 7.8 {
+  UPDATE t1 AS alias SET b=alias.b+1000 RETURNING t1.b;
+} {0 1032}
+
+# Forum: https://sqlite.org/forum/info/34c81d83c9177f46
+reset_db
+do_execsql_test 8.1 {
+  CREATE TABLE t1(a);
+  CREATE TABLE t2(b,c);
+  INSERT INTO t1 VALUES(1);
+  INSERT INTO t2 VALUES(3,40);
+} {}
+do_catchsql_test 8.2 {
+  INSERT INTO t1 VALUES(3) RETURNING a, (SELECT c FROM t2 WHERE new.a=t2.b) AS x;
+} {1 {no such column: new.a}}
+do_catchsql_test 8.3 {
+  INSERT INTO t1 VALUES(3) RETURNING a, (SELECT c FROM t2 WHERE old.a=t2.b) AS x;
+} {1 {no such column: old.a}}
+do_catchsql_test 8.4 {
+  INSERT INTO t1 VALUES(3) RETURNING a, (SELECT c FROM t2 WHERE t1.a=t2.b) AS x;
+} {0 {3 40}}
+
+ifcapable vtab {
+# dbsqlfuzz finds/crash-486f791cbe2dc45839310073e71367a1d8ad22dd
+do_catchsql_test 9.1 {
+  UPDATE pragma_encoding SET encoding='UTF-8' RETURNING a, b, *;
+} {1 {table pragma_encoding may not be modified}}
+} ;# ifcapable vtab
+
+# dbsqlfuzz crash-0081f863d7b2002045ac2361879fc80dfebb98f1
+reset_db
+do_execsql_test 10.1 {
+  CREATE TABLE t1_a(a, b);
+  CREATE VIEW t1 AS SELECT a, b FROM t1_a;
+
+  INSERT INTO t1_a VALUES('x', 'y');
+  INSERT INTO t1_a VALUES('x', 'y');
+  INSERT INTO t1_a VALUES('x', 'y');
+
+  CREATE TABLE log(op, r, a, b);
+}
+do_execsql_test 10.2 {
+  CREATE TRIGGER tr1 INSTEAD OF INSERT ON t1 BEGIN
+    INSERT INTO log VALUES('insert', new.rowid, new.a, new.b);
+  END;
+  CREATE TRIGGER tr2 INSTEAD OF UPDATE ON t1 BEGIN
+    INSERT INTO log VALUES('update', new.rowid, new.a, new.b);
+  END;
+}
+
+ifcapable !allow_rowid_in_view {
+  do_catchsql_test 10.3a {
+    INSERT INTO t1(a, b) VALUES(1234, 5678) RETURNING rowid;
+  } {1 {no such column: new.rowid}}
+  
+  do_catchsql_test 10.3b {
+    UPDATE t1 SET a='z' WHERE b='y' RETURNING rowid;
+  } {1 {no such column: new.rowid}}
+  
+  do_execsql_test 10.4 {
+    SELECT * FROM log;
+  } {}
+} else {
+  # Note: The values returned by the RETURNING clauses of the following
+  # two statements are the rowid columns of views. These values are not
+  # well defined, so the INSERT returns -1, and the UPDATE returns NULL.
+  # These match the values used for new.rowid expressions, but not much 
+  # else.
+  do_catchsql_test 10.3a {
+    INSERT INTO t1(a, b) VALUES(1234, 5678) RETURNING rowid;
+  } {0 -1}
+  
+  do_catchsql_test 10.3b {
+    UPDATE t1 SET a='z' WHERE b='y' RETURNING rowid;
+  } {0 {{} {} {}}}
+  
+  do_execsql_test 10.4 {
+    SELECT * FROM log;
+  } {
+    insert -1 1234 5678 update {} z y update {} z y update {} z y
+  }
+}
+
+# 2021-04-27 dbsqlfuzz 78b9400770ef8cc7d9427dfba26f4fcf46ea7dc2
+# Returning clauses on TEMP tables with triggers.
+#
+reset_db
+do_execsql_test 11.1 {
+  CREATE TEMP TABLE t1(a,b);
+  CREATE TEMP TABLE t2(c,d);
+  CREATE TEMP TABLE t3(e,f);
+  CREATE TEMP TABLE log(op,x,y);
+  CREATE TEMP TRIGGER t1r1 AFTER INSERT ON t1 BEGIN
+     INSERT INTO log(op,x,y) VALUES('I1',new.a,new.b);
+  END;
+  CREATE TEMP TRIGGER t1r2 BEFORE DELETE ON t1 BEGIN
+     INSERT INTO log(op,x,y) VALUES('D1',old.a,old.b);
+  END;
+  CREATE TEMP TRIGGER t2r3 AFTER UPDATE ON t1 BEGIN
+     INSERT INTO log(op,x,y) VALUES('U1',new.a,new.b);
+  END;
+  CREATE TEMP TRIGGER t2r1 BEFORE INSERT ON t2 BEGIN
+     INSERT INTO log(op,x,y) VALUES('I2',new.c,new.d);
+  END;
+  CREATE TEMP TRIGGER t3r1 AFTER DELETE ON t3 BEGIN
+     INSERT INTO log(op,x,y) VALUES('D3',old.e,old.f);
+  END;
+  CREATE TEMP TRIGGER t3r2 BEFORE UPDATE ON t3 BEGIN
+     INSERT INTO log(op,x,y) VALUES('U3',new.e,new.f);
+  END;
+  INSERT INTO t1(a,b) VALUES(1,2),('happy','glad') RETURNING a, b, '|';
+} {1 2 | happy glad |}
+do_execsql_test 11.2 {
+  UPDATE t1 SET b=9 WHERE a=1 RETURNING a, b, 'x';
+} {1 9 x}
+do_execsql_test 11.3 {
+  DELETE FROM t1 WHERE a<>'xray' RETURNING a, b, '@';
+} {1 9 @ happy glad @}
+do_execsql_test 11.4 {
+  SELECT * FROM log;
+  DELETE FROM log;
+} {I1 1 2 I1 happy glad U1 1 9 D1 1 9 D1 happy glad}
+do_execsql_test 11.5 {
+  INSERT INTO t2 VALUES('bravo','charlie') RETURNING d, c, 'z';
+} {charlie bravo z}
+do_execsql_test 11.6 {
+  SELECT * FROM log;
+  DELETE FROM log;
+} {I2 bravo charlie}
+do_execsql_test 11.7 {
+  INSERT INTO t3(e) VALUES(1),(2),(3) RETURNING 'I', e;
+  UPDATE t3 SET f=e+100 RETURNING 'U', e, f;
+  DELETE FROM t3 WHERE f>100 RETURNING 'D', e, f;
+} {I 1 I 2 I 3 U 1 101 U 2 102 U 3 103 D 1 101 D 2 102 D 3 103}
+do_execsql_test 11.6 {
+  SELECT * FROM log;
+  DELETE FROM log;
+} {U3 1 101 U3 2 102 U3 3 103 D3 1 101 D3 2 102 D3 3 103}
+
+reset_db
+do_execsql_test 11.11 {
+  CREATE TEMP TABLE t1(a,b);
+  CREATE TRIGGER r1 BEFORE INSERT ON t1 BEGIN SELECT 1; END;
+  DELETE FROM t1 RETURNING *;
+  DROP TRIGGER r1;
+  INSERT INTO t1 VALUES(5,30);
+} {}
+do_execsql_test 11.12 {
+  SELECT * FROM t1;
+} {5 30}
+
+# RETURNING column names are dequoted.
+# https://sqlite.org/forum/forumpost/033daf0b32
+#
+reset_db
+do_test 12.1 {
+  db eval {CREATE TABLE t1(x INT, y INT)}
+  unset -nocomplain cname
+  db eval {INSERT INTO t1(x) VALUES(1) RETURNING "x";} cname {}
+  lsort [array names cname]
+} {* x}
+do_test 12.2 {
+  unset -nocomplain cname
+  db eval {INSERT INTO t1(x) VALUES(2) RETURNING [x];} cname {}
+  lsort [array names cname]
+} {* x} 
+do_test 12.3 {
+  unset -nocomplain cname
+  db eval {INSERT INTO t1(x) VALUES(3) RETURNING x AS [xyz];} cname {}
+  lsort [array names cname]
+} {* xyz}
+do_test 12.4 {
+  unset -nocomplain cname
+  db eval {INSERT INTO t1(x,y) VALUES(4,5) RETURNING "x"+"y";} cname {}
+  lsort [array names cname]
+} {{"x"+"y"} *}
+
+ifcapable rtree {
+#-------------------------------------------------------------------------
+# Based on dbsqlfuzz find crash-ffbba524cac354b2a61bfd677cec9d2a4333f49a
+reset_db
+do_execsql_test 13.0 {
+  CREATE VIRTUAL TABLE t1 USING rtree(a, b, c);
+  CREATE TABLE t2(x);
+}
+
+do_execsql_test 13.1 {
+  INSERT INTO t1(a,b,c) VALUES(1,2,3) 
+  RETURNING (SELECT b FROM t2);
+} {{}}
+} ;# end ifcapable rtree
+
+# 2021-12-01 Forum post https://sqlite.org/forum/forumpost/793beaf322
+# Need to report foreign key constraint errors prior to RETURNING
+#
+reset_db
+do_execsql_test 14.0 {
+  PRAGMA foreign_keys(1);
+  CREATE TABLE Parent(id INTEGER PRIMARY KEY);
+  CREATE TABLE Child(id INTEGER PRIMARY KEY, parent_id INTEGER REFERENCES Parent(id));
+} {}
+do_catchsql_test 14.1 {
+  INSERT INTO child(parent_id) VALUES(123) RETURNING id;
+} {1 {FOREIGN KEY constraint failed}}
+
+# 2021-12-28 Forum post https://sqlite.org/forum/forumpost/e0c7574ab2
+# Incorrect affinity for REAL values that can be represented as integers.
+#
+reset_db
+sqlite3_test_control SQLITE_TESTCTRL_INTERNAL_FUNCTIONS db
+do_execsql_test 15.0 {
+  CREATE TABLE t1(x REAL);
+  INSERT INTO t1(x) VALUES(5.0) RETURNING x, affinity(x);
+} {5.0 real}
+do_execsql_test 15.1 {
+  UPDATE t1 SET x=x+1 RETURNING x, affinity(x);
+} {6.0 real}
+do_execsql_test 15.2 {
+  DELETE FROM t1 RETURNING x, affinity(x);
+} {6.0 real}
+
+# 2022-02-28 Forum post https://sqlite.org/forum/forumpost/595e132f71
+# RETURNING with the xfer optimization
+#
+reset_db
+do_execsql_test 16.0 {
+  CREATE TABLE t1(a,b,c);
+  INSERT INTO t1 VALUES(1,2,3),('a','b','c');
+  CREATE TEMP TABLE t2(x,y,z);
+  INSERT INTO t2 SELECT * FROM t1 RETURNING *;
+} {1 2 3 a b c}
+do_execsql_test 16.1 {
+  SELECT * FROM t2;
+} {1 2 3 a b c}
+
+
+foreach {tn temp} {
+  1 ""
+  2 TEMP
+} {
+  reset_db
+  do_execsql_test 17.$tn.0 "
+    CREATE $temp TABLE foo (
+      fooid INTEGER PRIMARY KEY,
+      fooval INTEGER NOT NULL UNIQUE,
+      refcnt INTEGER NOT NULL DEFAULT 1
+    );
+  "
+  do_execsql_test 17.$tn.1 {
+    INSERT INTO foo (fooval) VALUES (17), (4711), (17)
+      ON CONFLICT DO
+      UPDATE SET refcnt = refcnt+1
+    RETURNING fooid;
+  } {
+    1 2 1
+  }
+}
+
+# 2022-01-13 https://sqlite.org/forum/forumpost/d010a26798
+#
+reset_db
+do_execsql_test 17.0 {
+  CREATE TABLE bug(id INTEGER PRIMARY KEY NOT NULL, x);
+  INSERT INTO bug(id,x) VALUES(20, NULL);
+  UPDATE bug SET x=NULL WHERE id = 20 RETURNING quote(x), x IS NULL;
+} {NULL 1}
+
+# 2023-03-08 https://sqlite.org/forum/forumpost/f5a2b1db87
+# NULL pointer dereference following an error.
+#
+do_execsql_test 18.0 {
+  CREATE TABLE v0(c1 INT);
+  CREATE VIEW view_2(c1) AS SELECT CASE WHEN c1 COLLATE TRUE THEN TRUE ELSE TRUE END FROM v0;
+  CREATE TRIGGER x1 INSTEAD OF INSERT ON view_2 BEGIN SELECT true; END;
+}
+do_catchsql_test 18.1 {
+  INSERT INTO view_2 DEFAULT VALUES RETURNING *;
+} {1 {no such collation sequence: TRUE}}
+
+# 2023-03-16 
+# https://sqlite.org/forum/forumpost/c99d6e0329
+# ticket d15b3a4ea901ef0d
+# ticket 89d259d45b855a0d
+#
+# A RETURNING clause on an IF NOT EXISTS trigger does not generate
+# an error if the trigger already exists.
+#
+do_execsql_test 19.0 {
+  DROP TABLE IF EXISTS t1;CREATE TABLE t1(a);
+  CREATE TRIGGER r1 AFTER UPDATE ON t1 BEGIN VALUES(0); END;
+} {}
+do_catchsql_test 19.1 {
+  CREATE TRIGGER IF NOT EXISTS r1 AFTER DELETE ON t1 BEGIN
+    INSERT  INTO t1(a) VALUES (1) RETURNING FALSE;
+    INSERT  INTO t1(a) VALUES (2) RETURNING TRUE;
+  END;
+} {0 {}}
+
+# 2024-04-24
+# https://sqlite.org/forum/forumpost/2c83569ce8945d39
+#
+# If the RETURNING clause includes subqueries that reference the
+# table being modified, make sure that the subqueries are identified
+# as correlated so that the results are recomputed after each step
+# instead of being computed once and reused.
+#
+reset_db
+db null N
+do_execsql_test 20.1 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b INT);
+  INSERT INTO t1 VALUES(1,10),(2,20),(3,30),(4,40),(6,60),(8,80);
+  BEGIN;
+  DELETE FROM t1 WHERE a<>3
+    RETURNING a,
+              (SELECT min(a) FROM t1),
+              (SELECT max(a) FROM t1),
+              (SELECT round(avg(a),2) FROM t1);
+  ROLLBACK;
+} {
+  1 2 8 4.6
+  2 3 8 5.25
+  4 3 8 5.67
+  6 3 8 5.5
+  8 3 3 3.0
+}
+do_execsql_test 20.2 {
+  BEGIN;
+  DELETE FROM t1
+    RETURNING a,
+              (SELECT min(a) FROM t1),
+              (SELECT max(a) FROM t1),
+              (SELECT round(avg(a),2) FROM t1);
+  ROLLBACK;
+} {
+  1 2 8 4.6
+  2 3 8 5.25
+  3 4 8 6.0
+  4 6 8 7.0
+  6 8 8 8.0
+  8 N N N
+}
+do_execsql_test 20.3 {
+  BEGIN;
+  DELETE FROM t1
+    RETURNING a,
+              (SELECT min(t2.a)+t1.a*100 FROM t1 AS t2),
+              (SELECT max(t2.a)+t1.a*100 FROM t1 AS t2),
+              (SELECT round(avg(t2.a),2)+t1.a*100 FROM t1 AS t2);
+  ROLLBACK;
+} {
+  1 102 108 104.6
+  2 203 208 205.25
+  3 304 308 306.0
+  4 406 408 407.0
+  6 608 608 608.0
+  8 N N N
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 21.0 {
+  PRAGMA writable_schema=ON;
+  INSERT INTO sqlite_schema DEFAULT VALUES RETURNING sqlite_schema.name;
+} {{}}
+
+do_execsql_test 21.1 {
+  INSERT INTO sqlite_temp_schema DEFAULT VALUES RETURNING sqlite_temp_schema.name;
+} {{}}
+
+#-------------------------------------------------------------------------
+reset_db 
+do_execsql_test 22.0 {
+  PRAGMA writable_schema=ON;
+  CREATE TABLE xyz (a);
+}
+do_catchsql_test 22.1 {
+  INSERT INTO sqlite_temp_schema DEFAULT VALUES 
+    RETURNING
+    (SELECT * FROM xyz AS sqlite_master WHERE a=sqlite_master.name);
+} {1 {no such column: sqlite_master.name}}
+
+
+finish_test
diff --git a/test/returningfault.test b/test/returningfault.test
new file mode 100644
index 0000000000000000000000000000000000000000..8bf6fbfe06427daff90b4c226725c79684489f8f
--- /dev/null
+++ b/test/returningfault.test
@@ -0,0 +1,36 @@
+# 2022 January 5
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1 (b);
+} {}
+faultsim_save_and_close
+
+do_faultsim_test pagerfault-1 -faults oom-t* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { 
+    INSERT INTO t1(b) VALUES(65) RETURNING (
+      SELECT * FROM sqlite_temp_schema
+    ) AS aaa;
+  }
+} -test {
+  faultsim_test_result {1 {sub-select returns 5 columns - expected 1}}
+}
+
+
+finish_test
diff --git a/test/rollback.test b/test/rollback.test
new file mode 100644
index 0000000000000000000000000000000000000000..f32ce523e5c78ede7732f56b4a77b2480c08a141
--- /dev/null
+++ b/test/rollback.test
@@ -0,0 +1,152 @@
+# 2004 June 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is verifying that a rollback in one statement
+# caused by an ON CONFLICT ROLLBACK clause aborts any other pending
+# statements.
+#
+# $Id: rollback.test,v 1.11 2009/06/26 07:12:07 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+set DB [sqlite3_connection_pointer db]
+
+do_test rollback-1.1 {
+  execsql {
+    CREATE TABLE t1(a);
+    INSERT INTO t1 VALUES(1);
+    INSERT INTO t1 VALUES(2);
+    INSERT INTO t1 VALUES(3);
+    INSERT INTO t1 VALUES(4);
+    SELECT * FROM t1;
+  }
+} {1 2 3 4}
+
+ifcapable conflict {
+  do_test rollback-1.2 {
+    execsql {
+      CREATE TABLE t3(a unique on conflict rollback);
+      INSERT INTO t3 SELECT a FROM t1;
+      BEGIN;
+      INSERT INTO t1 SELECT * FROM t1;
+    }
+  } {}
+}
+do_test rollback-1.3 {
+  set STMT [sqlite3_prepare $DB "SELECT a FROM t1" -1 TAIL]
+  sqlite3_step $STMT
+} {SQLITE_ROW}
+
+ifcapable conflict {
+  # This causes a ROLLBACK, which deletes the table out from underneath the
+  # SELECT statement.
+  #
+  do_test rollback-1.4 {
+    catchsql {
+      INSERT INTO t3 SELECT a FROM t1;
+    }
+  } {1 {UNIQUE constraint failed: t3.a}}
+  
+  # Try to continue with the SELECT statement
+  #
+  do_test rollback-1.5 {
+    sqlite3_step $STMT
+  } {SQLITE_ROW}
+
+  # Restart the SELECT statement
+  #
+  do_test rollback-1.6 { sqlite3_reset $STMT } {SQLITE_OK}
+} else {
+  do_test rollback-1.6 { sqlite3_reset $STMT } {SQLITE_OK}
+}
+
+do_test rollback-1.7 {
+  sqlite3_step $STMT
+} {SQLITE_ROW}
+do_test rollback-1.8 {
+  sqlite3_step $STMT
+} {SQLITE_ROW}
+do_test rollback-1.9 {
+  sqlite3_finalize $STMT
+} {SQLITE_OK}
+
+if {$tcl_platform(platform) == "unix" 
+ && [permutation] ne "onefile"
+ && [permutation] ne "inmemory_journal"
+ && [permutation] ne "atomic-batch-write"
+ && [atomic_batch_write test.db]==0
+} {
+  do_test rollback-2.1 {
+    execsql {
+      BEGIN;
+      INSERT INTO t3 VALUES('hello world');
+    }
+    forcecopy test.db testA.db
+    forcecopy test.db-journal testA.db-journal
+    execsql {
+      COMMIT;
+    }
+  } {}
+
+  # At this point files testA.db and testA.db-journal are present in the
+  # file system. This block adds a master-journal file pointer to the
+  # end of testA.db-journal. The master-journal file does not exist.
+  # 
+  set mj [file normalize testA.db-mj-123]
+  binary scan $mj c* a
+  set cksum 0
+  foreach i $a { incr cksum $i }
+  set mj_pgno [expr $sqlite_pending_byte / 1024]
+  set zAppend [binary format Ia*IIa8 $mj_pgno $mj [string length $mj] $cksum \
+    "\xd9\xd5\x05\xf9\x20\xa1\x63\xd7"
+  ]
+  set iOffset [expr (([file size testA.db-journal] + 511)/512)*512]
+  set fd [open testA.db-journal a+]
+  fconfigure $fd -translation binary
+  seek $fd $iOffset
+  puts -nonewline $fd $zAppend
+
+  # Also, fix the first journal-header in the journal-file. Because the
+  # journal file has not yet been synced, the 8-byte magic string at the
+  # start of the first journal-header has not been written by SQLite.
+  # So write it now.
+  seek $fd 0
+  puts -nonewline $fd "\xd9\xd5\x05\xf9\x20\xa1\x63\xd7"
+  close $fd
+
+  # Open a handle on testA.db and use it to query the database. At one
+  # point the first query would attempt a hot rollback, attempt to open
+  # the master-journal file and return SQLITE_CANTOPEN when it could not
+  # be opened. This is incorrect, it should simply delete the journal
+  # file and proceed with the query.
+  # 
+  do_test rollback-2.2 {
+    sqlite3 db2 testA.db
+    execsql {
+      SELECT distinct tbl_name FROM sqlite_master;
+    } db2
+  } {t1 t3}
+  if {[lsearch {exclusive persistent_journal no_journal} [permutation]]<0} {
+    do_test rollback-2.3 {
+      file exists testA.db-journal
+    } 0
+  }
+  do_test rollback-2.4 {
+    execsql {
+      SELECT distinct tbl_name FROM sqlite_master;
+    } db2
+  } {t1 t3}
+
+  db2 close
+}
+
+finish_test
diff --git a/test/rollback2.test b/test/rollback2.test
new file mode 100644
index 0000000000000000000000000000000000000000..21ebdeaca0ad0506fa3b7a68e24bff71d0b02a4c
--- /dev/null
+++ b/test/rollback2.test
@@ -0,0 +1,156 @@
+# 2014 November 12
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file containst tests to verify that ROLLBACK or ROLLBACK TO 
+# operations interact correctly with ongoing SELECT statements.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix rollback2
+
+proc int2hex {i} { format %.2X $i }
+db func int2hex int2hex
+do_execsql_test 1.0 {
+  SELECT int2hex(0), int2hex(100), int2hex(255)
+} {00 64 FF}
+do_execsql_test 1.1 {
+  CREATE TABLE t1(i, h);
+  CREATE INDEX i1 ON t1(h);
+  WITH data(a, b) AS (
+    SELECT 1, int2hex(1)
+      UNION ALL
+    SELECT a+1, int2hex(a+1) FROM data WHERE a<40
+  )
+  INSERT INTO t1 SELECT * FROM data;
+} {}
+
+
+# do_rollback_test ID SWITCHES
+#
+# where SWITCHES are:
+#
+#   -setup      SQL script to open transaction and begin writing.
+#   -select     SELECT to execute after -setup script
+#   -result     Expected result of -select statement
+#   -rollback   Use this SQL command ("ROLLBACK" or "ROLLBACK TO ...") to
+#               rollback the transaction in the middle of the -select statment
+#               execution.
+#
+proc do_rollback_test {tn args} {
+  set A(-setup)    ""
+  set A(-select)   ""
+  set A(-result)   ""
+  set A(-rollback) ROLLBACK
+
+  array set O $args
+  foreach k [array names O] {
+    if {[info exists A($k)]==0} { error "unknown option: $k" }
+    set A($k) $O($k)
+  }
+
+  for {set iRollback 0} 1 {incr iRollback} {
+    catch { db eval ROLLBACK }
+    set res [list]
+    db eval $A(-setup)
+
+    set i 0
+    db eval $A(-select) x {
+      if {$i==$iRollback} { db eval $A(-rollback) }
+      foreach k $x(*) { lappend res $x($k) }
+      incr i
+    }
+
+    do_test $tn.$iRollback [list set {} $res] [list {*}$A(-result)]
+    if {$i < $iRollback} break
+  }
+}
+
+do_rollback_test 2.1 -setup {
+  BEGIN;
+    DELETE FROM t1 WHERE (i%2)==1;
+} -select {
+  SELECT i FROM t1 WHERE (i%2)==0
+} -result {
+  2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40
+}
+
+do_rollback_test 2.2 -setup {
+  BEGIN;
+    DELETE FROM t1 WHERE (i%4)==1;
+    SAVEPOINT one;
+      DELETE FROM t1 WHERE (i%2)==1;
+} -rollback {
+  ROLLBACK TO one;
+} -select {
+  SELECT i FROM t1 WHERE (i%2)==0
+} -result {
+  2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40
+}
+
+#--------------------------------------------------------------------
+# Try with some index scans
+#
+do_eqp_test 3.1 {
+  SELECT i FROM t1 WHERE (i%2)==0 ORDER BY h DESC;
+} {SCAN t1 USING INDEX i1}
+do_rollback_test 3.2 -setup {
+  BEGIN;
+    DELETE FROM t1 WHERE (i%2)==1;
+} -select {
+  SELECT i FROM t1 WHERE (i%2)==0 ORDER BY h DESC;
+} -result {
+  40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10  8  6  4  2
+}
+do_rollback_test 3.3 -setup {
+  BEGIN;
+    DELETE FROM t1 WHERE (i%4)==1;
+    SAVEPOINT one;
+      DELETE FROM t1 WHERE (i%2)==1;
+} -rollback {
+  ROLLBACK TO one;
+} -select {
+  SELECT i FROM t1 WHERE (i%2)==0 ORDER BY h DESC;
+} -result {
+  40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10  8  6  4  2
+}
+
+#--------------------------------------------------------------------
+# Now with some index scans that feature overflow keys.
+#
+set leader [string repeat "abcdefghij" 70]
+do_execsql_test 4.1 { UPDATE t1 SET h = $leader || h; }
+
+do_eqp_test 4.2 {
+  SELECT i FROM t1 WHERE (i%2)==0 ORDER BY h ASC;
+} {SCAN t1 USING INDEX i1}
+do_rollback_test 4.3 -setup {
+  BEGIN;
+    DELETE FROM t1 WHERE (i%2)==1;
+} -select {
+  SELECT i FROM t1 WHERE (i%2)==0 ORDER BY h ASC;
+} -result {
+  2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40
+}
+do_rollback_test 4.4 -setup {
+  BEGIN;
+    DELETE FROM t1 WHERE (i%4)==1;
+    SAVEPOINT one;
+      DELETE FROM t1 WHERE (i%2)==1;
+} -rollback {
+  ROLLBACK TO one;
+} -select {
+  SELECT i FROM t1 WHERE (i%2)==0 ORDER BY h ASC;
+} -result {
+  2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40
+}
+
+finish_test
diff --git a/test/rollbackfault.test b/test/rollbackfault.test
new file mode 100644
index 0000000000000000000000000000000000000000..4d060b43c8b8a10b2d9dd1f8594c5370443cd525
--- /dev/null
+++ b/test/rollbackfault.test
@@ -0,0 +1,82 @@
+# 2014-11-12
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test that errors encountered during a ROLLBACK operation correctly 
+# affect ongoing SQL statements.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+set testprefix rollbackfault
+
+
+proc int2hex {i} { format %.2X $i }
+db func int2hex int2hex
+do_execsql_test 1.0 {
+  SELECT int2hex(0), int2hex(100), int2hex(255)
+} {00 64 FF}
+do_execsql_test 1.1 {
+  CREATE TABLE t1(i, h);
+  CREATE INDEX i1 ON t1(h);
+  WITH data(a, b) AS (
+    SELECT 1, int2hex(1)
+      UNION ALL
+    SELECT a+1, int2hex(a+1) FROM data WHERE a<40
+  )
+  INSERT INTO t1 SELECT * FROM data;
+} {}
+
+foreach f {oom ioerr} {
+  do_faultsim_test 1.2 -faults $f* -prep {
+    set sql1 { SELECT i FROM t1 WHERE (i%2)==0 }
+    set sql2 { SELECT i FROM t1 WHERE (i%2)==0 ORDER BY h }
+    set ::s1 [sqlite3_prepare db $sql1 -1 dummy]
+    set ::s2 [sqlite3_prepare db $sql2 -1 dummy]
+  
+    for {set i 0} {$i < 10} {incr i} { sqlite3_step $::s1 }
+    for {set i 0} {$i < 3}  {incr i} { sqlite3_step $::s2 }
+  
+    execsql {
+      BEGIN; DELETE FROM t1 WHERE (i%2)
+    }
+  } -body {
+    execsql { ROLLBACK }
+  } -test {
+  
+    set res1 [list]
+    set res2 [list]
+    while {"SQLITE_ROW" == [sqlite3_step $::s1]} {
+      lappend res1 [sqlite3_column_text $::s1 0]
+    }
+    while {"SQLITE_ROW" == [sqlite3_step $::s2]} {
+      lappend res2 [sqlite3_column_text $::s2 0]
+    }
+    set rc1 [sqlite3_finalize $::s1]
+    set rc2 [sqlite3_finalize $::s2]
+  
+    catchsql { ROLLBACK }
+  
+    if {$rc1=="SQLITE_OK" && $rc2=="SQLITE_OK" 
+     && $res1=="22 24 26 28 30 32 34 36 38 40"
+     && $res2=="8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40"
+    } {
+      # This is Ok.
+    } elseif {$rc1!="SQLITE_OK" && $rc2!="SQLITE_OK" && $res1=="" &&$res2==""} {
+      # Also Ok.
+    } else {
+      error "statements don't look right"
+    }
+  }
+}
+
+
+finish_test
diff --git a/test/round1.test b/test/round1.test
new file mode 100644
index 0000000000000000000000000000000000000000..2857593be8e3771d02eb2cc750b2628933141dcd
--- /dev/null
+++ b/test/round1.test
@@ -0,0 +1,42 @@
+# 2019-05-24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# Test cases for rounding behavior of floating point values.
+#
+# TESTRUNNER: slow
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix round1
+
+expr srand(0)
+unset -nocomplain iTest
+for {set iTest 1} {$iTest<=50000} {incr iTest} {
+   set x1 [expr int(rand()*100000)]
+   set x2 [expr int(rand()*100000)+1000*int(rand()*10000)]
+   set n [expr int(rand()*8)+1]
+   set x3 [string range [format %09d $x2] [expr {9-$n}] end]
+   set r $x1.$x3
+   set ans [string trimright $r 0]
+   if {[string match *. $ans]} {set ans ${ans}0}
+   do_test $iTest/$n/${r}4=>$ans {
+     set x [db one "SELECT round(${r}4,$n)"]
+   } $ans
+   set x4 [string range [format %09d [expr {$x2+1}]] [expr {9-$n}] end]
+   if {[string trim $x3 9]==""} {incr x1}
+   set r2 $x1.$x4
+   set ans [string trimright $r2 0]
+   if {[string match *. $ans]} {set ans ${ans}0}
+   do_test $iTest/$n/${r}6=>$ans {
+     set x [db one "SELECT round(${r}6,$n)"]
+   } $ans
+}
+
+finish_test
diff --git a/test/rowallock.test b/test/rowallock.test
new file mode 100644
index 0000000000000000000000000000000000000000..a1cab8d327c2c22af141cb466230bcfaaa741bc2
--- /dev/null
+++ b/test/rowallock.test
@@ -0,0 +1,67 @@
+
+# 2015-05-28
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing locks on read-only WAL-mode databases.
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+set testprefix rowallock
+
+set mmap_res 1000000
+ifcapable !mmap {
+  set mmap_res 0
+}
+
+do_multiclient_test tn {
+  code2 { db2 close }
+  code3 { db3 close }
+  
+  do_execsql_test 1.$tn.1 {
+    PRAGMA page_size = 4096;
+    CREATE TABLE t1(a, b);
+    CREATE TABLE t2(a, b);
+    INSERT INTO t1 VALUES(1, 2), (3, 4);
+    PRAGMA journal_mode = wal;
+  } {wal}
+
+  code1 { 
+    db close 
+    sqlite3 db test.db -readonly 1
+  }
+
+  do_execsql_test 1.$tn.2 {
+    PRAGMA mmap_size = 1000000;
+  } $mmap_res
+  do_execsql_test 1.$tn.2.1 {
+    SELECT * FROM t1;
+  } {1 2 3 4}
+
+  do_catchsql_test 1.$tn.3 {
+    INSERT INTO t1 VALUES(5, 6);
+  } {1 {attempt to write a readonly database}}
+
+  do_test 1.$tn.4 {
+    code2 { sqlite3 db2 test.db }
+    sql2 { INSERT INTO t1 VALUES(5, 6); }
+    code2 { db2 close }
+    file exists test.db-wal
+  } {1}
+
+  do_test 1.$tn.5 {
+    sql1 { SELECT * FROM t2 }
+    code1 { db close }
+    file exists test.db-wal
+  } {1}
+}
+
+finish_test
diff --git a/test/rowhash.test b/test/rowhash.test
new file mode 100644
index 0000000000000000000000000000000000000000..4a553cd6d5454a3465ba6df29a4b9ec3a9fd5a66
--- /dev/null
+++ b/test/rowhash.test
@@ -0,0 +1,59 @@
+# 2009 April 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements regression tests for SQLite library.  The
+# focus of this file is the code in rowhash.c.
+#
+# NB:  The rowhash.c module is no longer part of the source tree.  But
+# we might as well keep this test.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test rowhash-1.1 {
+  execsql {
+    CREATE TABLE t1(id INTEGER PRIMARY KEY, a, b, c);
+    CREATE INDEX i1 ON t1(a);
+    CREATE INDEX i2 ON t1(b);
+    CREATE INDEX i3 ON t1(c);
+  }
+} {}
+
+proc do_keyset_test {name lKey} {
+  db transaction {
+    execsql { DELETE FROM t1 }
+    foreach key $lKey {
+      execsql { INSERT OR IGNORE INTO t1 VALUES($key, 'a', 'b', 'c') }
+    }
+  }
+  do_test $name {
+    lsort -integer [execsql {
+      SELECT id FROM t1 WHERE a = 'a' OR b = 'b' OR c = 'c';
+    }]
+  } [lsort -integer -unique $lKey]
+}
+
+do_keyset_test rowhash-2.1 {1 2 3}
+do_keyset_test rowhash-2.2 {0 1 2 3}
+do_keyset_test rowhash-2.3 {62 125 188}
+if {[working_64bit_int]} {
+  expr srand(1)
+  unset -nocomplain i L
+  for {set i 4} {$i < 10} {incr i} {
+    for {set j 0} {$j < 5000} {incr j} {
+        lappend L [expr int(rand()*1000000000)]
+    }
+    do_keyset_test rowhash-2.$i $L
+  }
+}
+
+finish_test
diff --git a/test/rowid.test b/test/rowid.test
new file mode 100644
index 0000000000000000000000000000000000000000..84f0e4d3003074f143184199c2519084361ca08f
--- /dev/null
+++ b/test/rowid.test
@@ -0,0 +1,833 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the magic ROWID column that is
+# found on all tables.
+#
+# EVIDENCE-OF: R-36924-43758 By default, every row in SQLite has a
+# special column, usually called the "rowid", that uniquely identifies
+# that row within the table.
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix rowid
+
+# Basic ROWID functionality tests.
+#
+do_test rowid-1.1 {
+  execsql {
+    CREATE TABLE t1(x int, y int);
+    INSERT INTO t1 VALUES(1,2);
+    INSERT INTO t1 VALUES(3,4);
+    SELECT x FROM t1 ORDER BY y;
+  }
+} {1 3}
+do_test rowid-1.2 {
+  set r [execsql {SELECT rowid FROM t1 ORDER BY x}]
+  global x2rowid rowid2x
+  set x2rowid(1) [lindex $r 0]
+  set x2rowid(3) [lindex $r 1]
+  set rowid2x($x2rowid(1)) 1
+  set rowid2x($x2rowid(3)) 3
+  llength $r
+} {2}
+do_test rowid-1.3 {
+  global x2rowid
+  set sql "SELECT x FROM t1 WHERE rowid==$x2rowid(1)"
+  execsql $sql
+} {1}
+do_test rowid-1.4 {
+  global x2rowid
+  set sql "SELECT x FROM t1 WHERE rowid==$x2rowid(3)"
+  execsql $sql
+} {3}
+do_test rowid-1.5 {
+  global x2rowid
+  set sql "SELECT x FROM t1 WHERE oid==$x2rowid(1)"
+  execsql $sql
+} {1}
+do_test rowid-1.6 {
+  global x2rowid
+  set sql "SELECT x FROM t1 WHERE OID==$x2rowid(3)"
+  execsql $sql
+} {3}
+do_test rowid-1.7 {
+  global x2rowid
+  set sql "SELECT x FROM t1 WHERE _rowid_==$x2rowid(1)"
+  execsql $sql
+} {1}
+do_test rowid-1.7.1 {
+  while 1 {
+    set norow [expr {int(rand()*1000000)}]
+    if {$norow!=$x2rowid(1) && $norow!=$x2rowid(3)} break
+  }
+  execsql "SELECT x FROM t1 WHERE rowid=$norow"
+} {}
+do_test rowid-1.8 {
+  global x2rowid
+  set v [execsql {SELECT x, oid FROM t1 order by x}]
+  set v2 [list 1 $x2rowid(1) 3 $x2rowid(3)]
+  expr {$v==$v2}
+} {1}
+do_test rowid-1.9 {
+  global x2rowid
+  set v [execsql {SELECT x, RowID FROM t1 order by x}]
+  set v2 [list 1 $x2rowid(1) 3 $x2rowid(3)]
+  expr {$v==$v2}
+} {1}
+do_test rowid-1.10 {
+  global x2rowid
+  set v [execsql {SELECT x, _rowid_ FROM t1 order by x}]
+  set v2 [list 1 $x2rowid(1) 3 $x2rowid(3)]
+  expr {$v==$v2}
+} {1}
+
+# We can insert or update the ROWID column.
+#
+do_test rowid-2.1 {
+  catchsql {
+    INSERT INTO t1(rowid,x,y) VALUES(1234,5,6);
+    SELECT rowid, * FROM t1;
+  }
+} {0 {1 1 2 2 3 4 1234 5 6}}
+do_test rowid-2.2 {
+  catchsql {
+    UPDATE t1 SET rowid=12345 WHERE x==1;
+    SELECT rowid, * FROM t1
+  }
+} {0 {2 3 4 1234 5 6 12345 1 2}}
+do_test rowid-2.3 {
+  catchsql {
+    INSERT INTO t1(y,x,oid) VALUES(8,7,1235);
+    SELECT rowid, * FROM t1 WHERE rowid>1000;
+  }
+} {0 {1234 5 6 1235 7 8 12345 1 2}}
+do_test rowid-2.4 {
+  catchsql {
+    UPDATE t1 SET oid=12346 WHERE x==1;
+    SELECT rowid, * FROM t1;
+  }
+} {0 {2 3 4 1234 5 6 1235 7 8 12346 1 2}}
+do_test rowid-2.5 {
+  catchsql {
+    INSERT INTO t1(x,_rowid_,y) VALUES(9,1236,10);
+    SELECT rowid, * FROM t1 WHERE rowid>1000;
+  }
+} {0 {1234 5 6 1235 7 8 1236 9 10 12346 1 2}}
+do_test rowid-2.6 {
+  catchsql {
+    UPDATE t1 SET _rowid_=12347 WHERE x==1;
+    SELECT rowid, * FROM t1 WHERE rowid>1000;
+  }
+} {0 {1234 5 6 1235 7 8 1236 9 10 12347 1 2}}
+
+# But we can use ROWID in the WHERE clause of an UPDATE that does not
+# change the ROWID.
+#
+do_test rowid-2.7 {
+  global x2rowid
+  set sql "UPDATE t1 SET x=2 WHERE OID==$x2rowid(3)"
+  execsql $sql
+  execsql {SELECT x FROM t1 ORDER BY x}
+} {1 2 5 7 9}
+do_test rowid-2.8 {
+  global x2rowid
+  set sql "UPDATE t1 SET x=3 WHERE _rowid_==$x2rowid(3)"
+  execsql $sql
+  execsql {SELECT x FROM t1 ORDER BY x}
+} {1 3 5 7 9}
+
+if 0 {  # With the index-on-expressions enhancement, creating
+        # an index on ROWID has become possible.
+# We cannot index by ROWID
+#
+do_test rowid-2.9 {
+  set v [catch {execsql {CREATE INDEX idxt1 ON t1(rowid)}} msg]
+  lappend v $msg
+} {1 {table t1 has no column named rowid}}
+do_test rowid-2.10 {
+  set v [catch {execsql {CREATE INDEX idxt1 ON t1(_rowid_)}} msg]
+  lappend v $msg
+} {1 {table t1 has no column named _rowid_}}
+do_test rowid-2.11 {
+  set v [catch {execsql {CREATE INDEX idxt1 ON t1(oid)}} msg]
+  lappend v $msg
+} {1 {table t1 has no column named oid}}
+do_test rowid-2.12 {
+  set v [catch {execsql {CREATE INDEX idxt1 ON t1(x, rowid)}} msg]
+  lappend v $msg
+} {1 {table t1 has no column named rowid}}
+}
+
+# Columns defined in the CREATE statement override the buildin ROWID
+# column names.
+#
+do_test rowid-3.1 {
+  execsql {
+    CREATE TABLE t2(rowid int, x int, y int);
+    INSERT INTO t2 VALUES(0,2,3);
+    INSERT INTO t2 VALUES(4,5,6);
+    INSERT INTO t2 VALUES(7,8,9);
+    SELECT * FROM t2 ORDER BY x;
+  }
+} {0 2 3 4 5 6 7 8 9}
+do_test rowid-3.2 {
+  execsql {SELECT * FROM t2 ORDER BY rowid}
+} {0 2 3 4 5 6 7 8 9}
+do_test rowid-3.3 {
+  execsql {SELECT rowid, x, y FROM t2 ORDER BY rowid}
+} {0 2 3 4 5 6 7 8 9}
+do_test rowid-3.4 {
+  set r1 [execsql {SELECT _rowid_, rowid FROM t2 ORDER BY rowid}]
+  foreach {a b c d e f} $r1 {}
+  set r2 [execsql {SELECT _rowid_, rowid FROM t2 ORDER BY x DESC}]
+  foreach {u v w x y z} $r2 {}
+  expr {$u==$e && $w==$c && $y==$a}
+} {1}
+# sqlite3 v3 - do_probtest doesn't exist anymore?
+if 0 {
+do_probtest rowid-3.5 {
+  set r1 [execsql {SELECT _rowid_, rowid FROM t2 ORDER BY rowid}]
+  foreach {a b c d e f} $r1 {}
+  expr {$a!=$b && $c!=$d && $e!=$f}
+} {1}
+}
+
+# Let's try some more complex examples, including some joins.
+#
+do_test rowid-4.1 {
+  execsql {
+    DELETE FROM t1;
+    DELETE FROM t2;
+  }
+  for {set i 1} {$i<=50} {incr i} {
+    execsql "INSERT INTO t1(x,y) VALUES($i,[expr {$i*$i}])"
+  }
+  execsql {INSERT INTO t2 SELECT _rowid_, x*y, y*y FROM t1}
+  execsql {SELECT t2.y FROM t1, t2 WHERE t1.x==4 AND t1.rowid==t2.rowid}
+} {256}
+do_test rowid-4.2 {
+  execsql {SELECT t2.y FROM t2, t1 WHERE t1.x==4 AND t1.rowid==t2.rowid}
+} {256}
+do_test rowid-4.2.1 {
+  execsql {SELECT t2.y FROM t2, t1 WHERE t1.x==4 AND t1.oid==t2.rowid}
+} {256}
+do_test rowid-4.2.2 {
+  execsql {SELECT t2.y FROM t2, t1 WHERE t1.x==4 AND t1._rowid_==t2.rowid}
+} {256}
+do_test rowid-4.2.3 {
+  execsql {SELECT t2.y FROM t2, t1 WHERE t1.x==4 AND t2.rowid==t1.rowid}
+} {256}
+do_test rowid-4.2.4 {
+  execsql {SELECT t2.y FROM t2, t1 WHERE t2.rowid==t1.oid AND t1.x==4}
+} {256}
+do_test rowid-4.2.5 {
+  execsql {SELECT t2.y FROM t1, t2 WHERE t1.x==4 AND t1._rowid_==t2.rowid}
+} {256}
+do_test rowid-4.2.6 {
+  execsql {SELECT t2.y FROM t1, t2 WHERE t1.x==4 AND t2.rowid==t1.rowid}
+} {256}
+do_test rowid-4.2.7 {
+  execsql {SELECT t2.y FROM t1, t2 WHERE t2.rowid==t1.oid AND t1.x==4}
+} {256}
+do_test rowid-4.3 {
+  execsql {CREATE INDEX idxt1 ON t1(x)}
+  execsql {SELECT t2.y FROM t1, t2 WHERE t1.x==4 AND t1.rowid==t2.rowid}
+} {256}
+do_test rowid-4.3.1 {
+  execsql {SELECT t2.y FROM t1, t2 WHERE t1.x==4 AND t1._rowid_==t2.rowid}
+} {256}
+do_test rowid-4.3.2 {
+  execsql {SELECT t2.y FROM t1, t2 WHERE t2.rowid==t1.oid AND 4==t1.x}
+} {256}
+do_test rowid-4.4 {
+  execsql {SELECT t2.y FROM t2, t1 WHERE t1.x==4 AND t1.rowid==t2.rowid}
+} {256}
+do_test rowid-4.4.1 {
+  execsql {SELECT t2.y FROM t2, t1 WHERE t1.x==4 AND t1._rowid_==t2.rowid}
+} {256}
+do_test rowid-4.4.2 {
+  execsql {SELECT t2.y FROM t2, t1 WHERE t2.rowid==t1.oid AND 4==t1.x}
+} {256}
+do_test rowid-4.5 {
+  execsql {CREATE INDEX idxt2 ON t2(y)}
+  set sqlite_search_count 0
+  concat [execsql {
+    SELECT t1.x FROM t2, t1 
+    WHERE t2.y==256 AND t1.rowid==t2.rowid
+  }] $sqlite_search_count
+} {4 3}
+do_test rowid-4.5.1 {
+  set sqlite_search_count 0
+  concat [execsql {
+    SELECT t1.x FROM t2, t1 
+    WHERE t1.OID==t2.rowid AND t2.y==81
+  }] $sqlite_search_count
+} {3 3}
+do_test rowid-4.6 {
+  execsql {
+    SELECT t1.x FROM t1, t2
+    WHERE t2.y==256 AND t1.rowid==t2.rowid
+  }
+} {4}
+
+do_test rowid-5.1.1 {
+  ifcapable subquery {
+    execsql {DELETE FROM t1 WHERE _rowid_ IN (SELECT oid FROM t1 WHERE x>8)}
+  } else {
+    set oids [execsql {SELECT oid FROM t1 WHERE x>8}]
+    set where "_rowid_ = [join $oids { OR _rowid_ = }]"
+    execsql "DELETE FROM t1 WHERE $where"
+  }
+} {}
+do_test rowid-5.1.2 {
+  execsql {SELECT max(x) FROM t1}
+} {8}
+
+# Make sure a "WHERE rowid=X" clause works when there is no ROWID of X.
+#
+do_test rowid-6.1 {
+  execsql {
+    SELECT x FROM t1
+  }
+} {1 2 3 4 5 6 7 8}
+do_test rowid-6.2 {
+  for {set ::norow 1} {1} {incr ::norow} {
+    if {[execsql "SELECT x FROM t1 WHERE rowid=$::norow"]==""}  break
+  }
+  execsql [subst {
+    DELETE FROM t1 WHERE rowid=$::norow
+  }]
+} {}
+do_test rowid-6.3 {
+  execsql {
+    SELECT x FROM t1
+  }
+} {1 2 3 4 5 6 7 8}
+
+# Beginning with version 2.3.4, SQLite computes rowids of new rows by
+# finding the maximum current rowid and adding one.  It falls back to
+# the old random algorithm if the maximum rowid is the largest integer.
+# The following tests are for this new behavior.
+#
+do_test rowid-7.0 {
+  execsql {
+    DELETE FROM t1;
+    DROP TABLE t2;
+    DROP INDEX idxt1;
+    INSERT INTO t1 VALUES(1,2);
+    SELECT rowid, * FROM t1;
+  }
+} {1 1 2}
+do_test rowid-7.1 {
+  execsql {
+    INSERT INTO t1 VALUES(99,100);
+    SELECT rowid,* FROM t1
+  }
+} {1 1 2 2 99 100}
+do_test rowid-7.2 {
+  execsql {
+    CREATE TABLE t2(a INTEGER PRIMARY KEY, b);
+    INSERT INTO t2(b) VALUES(55);
+    SELECT * FROM t2;
+  }
+} {1 55}
+do_test rowid-7.3 {
+  execsql {
+    INSERT INTO t2(b) VALUES(66);
+    SELECT * FROM t2;
+  }
+} {1 55 2 66}
+do_test rowid-7.4 {
+  execsql {
+    INSERT INTO t2(a,b) VALUES(1000000,77);
+    INSERT INTO t2(b) VALUES(88);
+    SELECT * FROM t2;
+  }
+} {1 55 2 66 1000000 77 1000001 88}
+do_test rowid-7.5 {
+  execsql {
+    INSERT INTO t2(a,b) VALUES(2147483647,99);
+    INSERT INTO t2(b) VALUES(11);
+    SELECT b FROM t2 ORDER BY b;
+  }
+} {11 55 66 77 88 99}
+ifcapable subquery {
+  do_test rowid-7.6 {
+    execsql {
+      SELECT b FROM t2 WHERE a NOT IN(1,2,1000000,1000001,2147483647);
+    }
+  } {11}
+  do_test rowid-7.7 {
+    execsql {
+      INSERT INTO t2(b) VALUES(22);
+      INSERT INTO t2(b) VALUES(33);
+      INSERT INTO t2(b) VALUES(44);
+      INSERT INTO t2(b) VALUES(55);
+      SELECT b FROM t2 WHERE a NOT IN(1,2,1000000,1000001,2147483647) 
+          ORDER BY b;
+    }
+  } {11 22 33 44 55}
+}
+do_test rowid-7.8 {
+  execsql {
+    DELETE FROM t2 WHERE a!=2;
+    INSERT INTO t2(b) VALUES(111);
+    SELECT * FROM t2;
+  }
+} {2 66 3 111}
+
+ifcapable {trigger} {
+# Make sure AFTER triggers that do INSERTs do not change the last_insert_rowid.
+# Ticket #290
+#
+do_test rowid-8.1 {
+  execsql {
+    CREATE TABLE t3(a integer primary key);
+    CREATE TABLE t4(x);
+    INSERT INTO t4 VALUES(1);
+    CREATE TRIGGER r3 AFTER INSERT on t3 FOR EACH ROW BEGIN
+      INSERT INTO t4 VALUES(NEW.a+10);
+    END;
+    SELECT * FROM t3;
+  }
+} {}
+do_test rowid-8.2 {
+  execsql {
+    SELECT rowid, * FROM t4;
+  }
+} {1 1}
+do_test rowid-8.3 {
+  execsql {
+    INSERT INTO t3 VALUES(123);
+    SELECT last_insert_rowid();
+  }
+} {123}
+do_test rowid-8.4 {
+  execsql {
+    SELECT * FROM t3;
+  }
+} {123}
+do_test rowid-8.5 {
+  execsql {
+    SELECT rowid, * FROM t4;
+  }
+} {1 1 2 133}
+do_test rowid-8.6 {
+  execsql {
+    INSERT INTO t3 VALUES(NULL);
+    SELECT last_insert_rowid();
+  }
+} {124}
+do_test rowid-8.7 {
+  execsql {
+    SELECT * FROM t3;
+  }
+} {123 124}
+do_test rowid-8.8 {
+  execsql {
+    SELECT rowid, * FROM t4;
+  }
+} {1 1 2 133 3 134}
+} ;# endif trigger
+
+# If triggers are not enable, simulate their effect for the tests that
+# follow.
+ifcapable {!trigger} {
+  execsql {
+    CREATE TABLE t3(a integer primary key);
+    INSERT INTO t3 VALUES(123);
+    INSERT INTO t3 VALUES(124);
+  }
+}
+
+# ticket #377: Comparison between integer primiary key and floating point
+# values.
+#
+do_test rowid-9.1 {
+  execsql {
+    SELECT * FROM t3 WHERE a<123.5
+  }
+} {123}
+do_test rowid-9.2 {
+  execsql {
+    SELECT * FROM t3 WHERE a<124.5
+  }
+} {123 124}
+do_test rowid-9.3 {
+  execsql {
+    SELECT * FROM t3 WHERE a>123.5
+  }
+} {124}
+do_test rowid-9.4 {
+  execsql {
+    SELECT * FROM t3 WHERE a>122.5
+  }
+} {123 124}
+do_test rowid-9.5 {
+  execsql {
+    SELECT * FROM t3 WHERE a==123.5
+  }
+} {}
+do_test rowid-9.6 {
+  execsql {
+    SELECT * FROM t3 WHERE a==123.000
+  }
+} {123}
+do_test rowid-9.7 {
+  execsql {
+    SELECT * FROM t3 WHERE a>100.5 AND a<200.5
+  }
+} {123 124}
+do_test rowid-9.8 {
+  execsql {
+    SELECT * FROM t3 WHERE a>'xyz';
+  }
+} {}
+do_test rowid-9.9 {
+  execsql {
+    SELECT * FROM t3 WHERE a<'xyz';
+  }
+} {123 124}
+do_test rowid-9.10 {
+  execsql {
+    SELECT * FROM t3 WHERE a>=122.9 AND a<=123.1
+  }
+} {123}
+
+# Ticket #567.  Comparisons of ROWID or integery primary key against
+# floating point numbers still do not always work.
+#
+do_test rowid-10.1 {
+  execsql {
+    CREATE TABLE t5(a);
+    INSERT INTO t5 VALUES(1);
+    INSERT INTO t5 VALUES(2);
+    INSERT INTO t5 SELECT a+2 FROM t5;
+    INSERT INTO t5 SELECT a+4 FROM t5;
+    SELECT rowid, * FROM t5;
+  }
+} {1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8}
+do_test rowid-10.2 {
+  execsql {SELECT rowid, a FROM t5 WHERE rowid>=5.5}
+} {6 6 7 7 8 8}
+do_test rowid-10.3 {
+  execsql {SELECT rowid, a FROM t5 WHERE rowid>=5.0}
+} {5 5 6 6 7 7 8 8}
+do_test rowid-10.4 {
+  execsql {SELECT rowid, a FROM t5 WHERE rowid>5.5}
+} {6 6 7 7 8 8}
+do_test rowid-10.3.2 {
+  execsql {SELECT rowid, a FROM t5 WHERE rowid>5.0}
+} {6 6 7 7 8 8}
+do_test rowid-10.5 {
+  execsql {SELECT rowid, a FROM t5 WHERE 5.5<=rowid}
+} {6 6 7 7 8 8}
+do_test rowid-10.6 {
+  execsql {SELECT rowid, a FROM t5 WHERE 5.5<rowid}
+} {6 6 7 7 8 8}
+do_test rowid-10.7 {
+  execsql {SELECT rowid, a FROM t5 WHERE rowid<=5.5}
+} {1 1 2 2 3 3 4 4 5 5}
+do_test rowid-10.8 {
+  execsql {SELECT rowid, a FROM t5 WHERE rowid<5.5}
+} {1 1 2 2 3 3 4 4 5 5}
+do_test rowid-10.9 {
+  execsql {SELECT rowid, a FROM t5 WHERE 5.5>=rowid}
+} {1 1 2 2 3 3 4 4 5 5}
+do_test rowid-10.10 {
+  execsql {SELECT rowid, a FROM t5 WHERE 5.5>rowid}
+} {1 1 2 2 3 3 4 4 5 5}
+do_test rowid-10.11 {
+  execsql {SELECT rowid, a FROM t5 WHERE rowid>=5.5 ORDER BY rowid DESC}
+} {8 8 7 7 6 6}
+do_test rowid-10.11.2 {
+  execsql {SELECT rowid, a FROM t5 WHERE rowid>=5.0 ORDER BY rowid DESC}
+} {8 8 7 7 6 6 5 5}
+do_test rowid-10.12 {
+  execsql {SELECT rowid, a FROM t5 WHERE rowid>5.5 ORDER BY rowid DESC}
+} {8 8 7 7 6 6}
+do_test rowid-10.12.2 {
+  execsql {SELECT rowid, a FROM t5 WHERE rowid>5.0 ORDER BY rowid DESC}
+} {8 8 7 7 6 6}
+do_test rowid-10.13 {
+  execsql {SELECT rowid, a FROM t5 WHERE 5.5<=rowid ORDER BY rowid DESC}
+} {8 8 7 7 6 6}
+do_test rowid-10.14 {
+  execsql {SELECT rowid, a FROM t5 WHERE 5.5<rowid ORDER BY rowid DESC}
+} {8 8 7 7 6 6}
+do_test rowid-10.15 {
+  execsql {SELECT rowid, a FROM t5 WHERE rowid<=5.5 ORDER BY rowid DESC}
+} {5 5 4 4 3 3 2 2 1 1}
+do_test rowid-10.16 {
+  execsql {SELECT rowid, a FROM t5 WHERE rowid<5.5 ORDER BY rowid DESC}
+} {5 5 4 4 3 3 2 2 1 1}
+do_test rowid-10.17 {
+  execsql {SELECT rowid, a FROM t5 WHERE 5.5>=rowid ORDER BY rowid DESC}
+} {5 5 4 4 3 3 2 2 1 1}
+do_test rowid-10.18 {
+  execsql {SELECT rowid, a FROM t5 WHERE 5.5>rowid ORDER BY rowid DESC}
+} {5 5 4 4 3 3 2 2 1 1}
+
+do_test rowid-10.30 {
+  execsql {
+    CREATE TABLE t6(a);
+    INSERT INTO t6(rowid,a) SELECT -a,a FROM t5;
+    SELECT rowid, * FROM t6;
+  }
+} {-8 8 -7 7 -6 6 -5 5 -4 4 -3 3 -2 2 -1 1}
+do_test rowid-10.31.1 {
+  execsql {SELECT rowid, a FROM t6 WHERE rowid>=-5.5}
+} {-5 5 -4 4 -3 3 -2 2 -1 1}
+do_test rowid-10.31.2 {
+  execsql {SELECT rowid, a FROM t6 WHERE rowid>=-5.0}
+} {-5 5 -4 4 -3 3 -2 2 -1 1}
+do_test rowid-10.32.1 {
+  execsql {SELECT rowid, a FROM t6 WHERE rowid>=-5.5 ORDER BY rowid DESC}
+} {-1 1 -2 2 -3 3 -4 4 -5 5}
+do_test rowid-10.32.1 {
+  execsql {SELECT rowid, a FROM t6 WHERE rowid>=-5.0 ORDER BY rowid DESC}
+} {-1 1 -2 2 -3 3 -4 4 -5 5}
+do_test rowid-10.33 {
+  execsql {SELECT rowid, a FROM t6 WHERE -5.5<=rowid}
+} {-5 5 -4 4 -3 3 -2 2 -1 1}
+do_test rowid-10.34 {
+  execsql {SELECT rowid, a FROM t6 WHERE -5.5<=rowid ORDER BY rowid DESC}
+} {-1 1 -2 2 -3 3 -4 4 -5 5}
+do_test rowid-10.35.1 {
+  execsql {SELECT rowid, a FROM t6 WHERE rowid>-5.5}
+} {-5 5 -4 4 -3 3 -2 2 -1 1}
+do_test rowid-10.35.2 {
+  execsql {SELECT rowid, a FROM t6 WHERE rowid>-5.0}
+} {-4 4 -3 3 -2 2 -1 1}
+do_test rowid-10.36.1 {
+  execsql {SELECT rowid, a FROM t6 WHERE rowid>-5.5 ORDER BY rowid DESC}
+} {-1 1 -2 2 -3 3 -4 4 -5 5}
+do_test rowid-10.36.2 {
+  execsql {SELECT rowid, a FROM t6 WHERE rowid>-5.0 ORDER BY rowid DESC}
+} {-1 1 -2 2 -3 3 -4 4}
+do_test rowid-10.37 {
+  execsql {SELECT rowid, a FROM t6 WHERE -5.5<rowid}
+} {-5 5 -4 4 -3 3 -2 2 -1 1}
+do_test rowid-10.38 {
+  execsql {SELECT rowid, a FROM t6 WHERE -5.5<rowid ORDER BY rowid DESC}
+} {-1 1 -2 2 -3 3 -4 4 -5 5}
+do_test rowid-10.39 {
+  execsql {SELECT rowid, a FROM t6 WHERE rowid<=-5.5}
+} {-8 8 -7 7 -6 6}
+do_test rowid-10.40 {
+  execsql {SELECT rowid, a FROM t6 WHERE rowid<=-5.5 ORDER BY rowid DESC}
+} {-6 6 -7 7 -8 8}
+do_test rowid-10.41 {
+  execsql {SELECT rowid, a FROM t6 WHERE -5.5>=rowid}
+} {-8 8 -7 7 -6 6}
+do_test rowid-10.42 {
+  execsql {SELECT rowid, a FROM t6 WHERE -5.5>=rowid ORDER BY rowid DESC}
+} {-6 6 -7 7 -8 8}
+do_test rowid-10.43 {
+  execsql {SELECT rowid, a FROM t6 WHERE rowid<-5.5}
+} {-8 8 -7 7 -6 6}
+do_test rowid-10.44 {
+  execsql {SELECT rowid, a FROM t6 WHERE rowid<-5.5 ORDER BY rowid DESC}
+} {-6 6 -7 7 -8 8}
+do_test rowid-10.44 {
+  execsql {SELECT rowid, a FROM t6 WHERE -5.5>rowid}
+} {-8 8 -7 7 -6 6}
+do_test rowid-10.46 {
+  execsql {SELECT rowid, a FROM t6 WHERE -5.5>rowid ORDER BY rowid DESC}
+} {-6 6 -7 7 -8 8}
+
+# Comparison of rowid against string values.
+#
+do_test rowid-11.1 {
+  execsql {SELECT rowid, a FROM t5 WHERE rowid>'abc'}
+} {}
+do_test rowid-11.2 {
+  execsql {SELECT rowid, a FROM t5 WHERE rowid>='abc'}
+} {}
+do_test rowid-11.3 {
+  execsql {SELECT rowid, a FROM t5 WHERE rowid<'abc'}
+} {1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8}
+do_test rowid-11.4 {
+  execsql {SELECT rowid, a FROM t5 WHERE rowid<='abc'}
+} {1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8}
+
+do_test rowid-11.asc.1 {
+  execsql {SELECT rowid, a FROM t5 WHERE rowid>'abc' ORDER BY 1 ASC}
+} {}
+do_test rowid-11.asc.2 {
+  execsql {SELECT rowid, a FROM t5 WHERE rowid>='abc' ORDER BY 1 ASC}
+} {}
+do_test rowid-11.asc.3 {
+  execsql {SELECT rowid, a FROM t5 WHERE rowid<'abc' ORDER BY 1 ASC}
+} {1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8}
+do_test rowid-11.asc.4 {
+  execsql {SELECT rowid, a FROM t5 WHERE rowid<='abc' ORDER BY 1 ASC}
+} {1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8}
+
+do_test rowid-11.desc.1 {
+  execsql {SELECT rowid, a FROM t5 WHERE rowid>'abc' ORDER BY 1 DESC}
+} {}
+do_test rowid-11.desc.2 {
+  execsql {SELECT rowid, a FROM t5 WHERE rowid>='abc' ORDER BY 1 DESC}
+} {}
+do_test rowid-11.desc.3 {
+  execsql {SELECT rowid, a FROM t5 WHERE rowid<'abc' ORDER BY 1 DESC}
+} {8 8 7 7 6 6 5 5 4 4 3 3 2 2 1 1}
+do_test rowid-11.desc.4 {
+  execsql {SELECT rowid, a FROM t5 WHERE rowid<='abc' ORDER BY 1 DESC}
+} {8 8 7 7 6 6 5 5 4 4 3 3 2 2 1 1}
+
+# Test the automatic generation of rowids when the table already contains
+# a rowid with the maximum value.
+#
+# Once the maximum rowid is taken, rowids are normally chosen at
+# random.  By by reseting the random number generator, we can cause
+# the rowid guessing loop to collide with prior rowids, and test the
+# loop out to its limit of 100 iterations.  After 100 collisions, the
+# rowid guesser gives up and reports SQLITE_FULL.
+#
+do_test rowid-12.1 {
+  execsql {
+    CREATE TABLE t7(x INTEGER PRIMARY KEY, y);
+    CREATE TABLE t7temp(a INTEGER PRIMARY KEY);
+    INSERT INTO t7 VALUES(9223372036854775807,'a');
+    SELECT y FROM t7;
+  }
+} {a}
+do_test rowid-12.2 {
+  db close
+  sqlite3 db test.db
+  save_prng_state
+  execsql {
+    INSERT INTO t7 VALUES(NULL,'b');
+    SELECT x, y FROM t7 ORDER BY x;
+  }
+} {/\d+ b 9223372036854775807 a/}
+execsql {INSERT INTO t7 VALUES(2,'y');}
+for {set i 1} {$i<100} {incr i} {
+  do_test rowid-12.3.$i {
+    db eval {DELETE FROM t7temp; INSERT INTO t7temp VALUES(1);}
+    restore_prng_state
+    execsql {
+      INSERT INTO t7 VALUES(NULL,'x');
+      SELECT count(*) FROM t7 WHERE y=='x';
+    }
+  } $i
+}
+do_test rowid-12.4 {
+  db eval {DELETE FROM t7temp; INSERT INTO t7temp VALUES(1);}
+  restore_prng_state
+  catchsql {
+    INSERT INTO t7 VALUES(NULL,'x');
+  }
+} {1 {database or disk is full}}
+
+# INSERTs that happen inside of nested function calls are recorded
+# by last_insert_rowid.
+#
+proc rowid_addrow_func {n} {
+  db eval {INSERT INTO t13(rowid,x) VALUES($n,$n*$n)}
+  return [db last_insert_rowid]
+}
+db function addrow rowid_addrow_func
+do_execsql_test rowid-13.1 {
+  CREATE TABLE t13(x);
+  INSERT INTO t13(rowid,x) VALUES(1234,5);
+  SELECT rowid, x, addrow(rowid+1000), '|' FROM t13 LIMIT 3;
+  SELECT last_insert_rowid();
+} {1234 5 2234 | 2234 4990756 3234 | 3234 10458756 4234 | 4234}
+
+#-------------------------------------------------------------------------
+do_execsql_test rowid-14.0 {
+  CREATE TABLE t14(x INTEGER PRIMARY KEY);
+  INSERT INTO t14(x) VALUES (100);
+}
+do_execsql_test rowid-14.1 {
+  SELECT * FROM t14 WHERE x < 'a' ORDER BY rowid ASC;
+} {100}
+do_execsql_test rowid-14.2 {
+  SELECT * FROM t14 WHERE x < 'a' ORDER BY rowid DESC;
+} {100}
+
+do_execsql_test rowid-14.3 {
+  DELETE FROM t14;
+  SELECT * FROM t14 WHERE x < 'a' ORDER BY rowid ASC;
+} {}
+do_execsql_test rowid-14.4 {
+  SELECT * FROM t14 WHERE x < 'a' ORDER BY rowid DESC;
+} {}
+
+reset_db
+do_execsql_test rowid-15.0 {
+  PRAGMA reverse_unordered_selects=true;
+  CREATE TABLE t1 (c0, c1);
+  CREATE TABLE t2 (c0 INT UNIQUE);
+  INSERT INTO t1(c0, c1) VALUES (0, 0), (0, NULL);
+  INSERT INTO t2(c0) VALUES (1);
+}
+
+do_execsql_test rowid-15.1 {
+  SELECT t2.c0, t1.c1 FROM t1, t2 
+  WHERE (t2.rowid <= 'a') OR (t1.c0 <= t2.c0) LIMIT 100
+} {1 {} 1 0}
+
+do_execsql_test rowid-15.2 {
+  SELECT 1, NULL INTERSECT SELECT * FROM (
+      SELECT t2.c0, t1.c1 FROM t1, t2
+      WHERE ((t2.rowid <= 'a')) OR (t1.c0 <= t2.c0) ORDER BY 'a' DESC LIMIT 100
+  );
+} {1 {}}
+
+#-------------------------------------------------------------------------
+# Check that an unqualified "rowid" can be used in join queries so long 
+# as only one of the source objects has a rowid column.
+#
+reset_db
+do_execsql_test 16.0 {
+  CREATE TABLE t1(x);
+  CREATE TABLE t2(y PRIMARY KEY) WITHOUT ROWID;
+  CREATE VIEW v1 AS SELECT x FROM t1;
+  CREATE TABLE t3(z);
+
+  INSERT INTO t1(rowid, x) VALUES(1, 1);
+  INSERT INTO t2(y) VALUES(2);
+  INSERT INTO t3(rowid, z) VALUES(3, 3);
+}
+
+ifcapable allow_rowid_in_view {
+  set nosuch "1 {ambiguous column name: rowid}"
+  do_execsql_test 16.1 { SELECT rowid FROM t1, t2; } {1}
+  do_catchsql_test 16.2 { SELECT rowid FROM t1, v1; } $nosuch
+  do_catchsql_test 16.3 { SELECT rowid FROM t3, v1; } $nosuch
+  do_catchsql_test 16.4 { SELECT rowid FROM t3, (SELECT 123); } $nosuch
+
+  do_execsql_test 16.5 { SELECT rowid FROM t2, t1; } {1}
+  do_catchsql_test 16.6 { SELECT rowid FROM v1, t1; } $nosuch
+  do_catchsql_test 16.7 { SELECT rowid FROM v1, t3; } $nosuch
+  do_execsql_test 16.8 { SELECT rowid FROM (SELECT 123), t3; } {3}
+} else {
+  do_execsql_test 16.1 { SELECT rowid FROM t1, t2; } {1}
+  do_execsql_test 16.2 { SELECT rowid FROM t1, v1; } {1}
+  do_execsql_test 16.3 { SELECT rowid FROM t3, v1; } {3}
+  do_execsql_test 16.4 { SELECT rowid FROM t3, (SELECT 123); } {3}
+
+  do_execsql_test 16.5 { SELECT rowid FROM t2, t1; } {1}
+  do_execsql_test 16.6 { SELECT rowid FROM v1, t1; } {1}
+  do_execsql_test 16.7 { SELECT rowid FROM v1, t3; } {3}
+  do_execsql_test 16.8 { SELECT rowid FROM (SELECT 123), t3; } {3}
+}
+
+do_catchsql_test 16.9 { 
+  SELECT rowid FROM t1, t3; 
+} {1 {ambiguous column name: rowid}}
+
+finish_test
diff --git a/test/rowvalue.test b/test/rowvalue.test
new file mode 100644
index 0000000000000000000000000000000000000000..59b44d9386307d9974a2eda9502f02ce16767bb8
--- /dev/null
+++ b/test/rowvalue.test
@@ -0,0 +1,785 @@
+# 2016 June 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the SELECT statement.
+#
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix rowvalue
+
+do_execsql_test 0.0 {
+  CREATE TABLE one(o);
+  INSERT INTO one VALUES(1);
+}
+
+foreach {tn v1 v2 eq ne is isnot} {
+  1 "1, 2, 3"    "1, 2, 3"                   1  0     1 0
+  2 "1, 0, 3"    "1, 2, 3"                   0  1     0 1
+  3 "1, 2, NULL" "1, 2, 3"                   {} {}    0 1
+  4 "1, 2, NULL" "1, 2, NULL"                {} {}    1 0
+  5 "NULL, NULL, NULL" "NULL, NULL, NULL"    {} {}    1 0
+
+  6 "1, NULL, 1" "1, 1, 1"                   {} {}    0 1
+  7 "1, NULL, 1" "1, 1, 2"                   0  1     0 1
+} {
+  do_execsql_test 1.$tn.eq "SELECT ($v1) == ($v2)" [list $eq]
+  do_execsql_test 1.$tn.ne "SELECT ($v1) != ($v2)" [list $ne]
+
+  do_execsql_test 1.$tn.is    "SELECT ($v1) IS ($v2)"     [list $is]
+  do_execsql_test 1.$tn.isnot "SELECT ($v1) IS NOT ($v2)" [list $isnot]
+
+  do_execsql_test 1.$tn.2.eq "SELECT (SELECT $v1) == (SELECT $v2)" [list $eq]
+  do_execsql_test 1.$tn.2.ne "SELECT (SELECT $v1) != (SELECT $v2)" [list $ne]
+}
+
+foreach {tn v1 v2 lt gt le ge} {
+  1 "(1, 1, 3)"    "(1, 2, 3)"                   1 0      1 0
+  2 "(1, 2, 3)"    "(1, 2, 3)"                   0 0      1 1
+  3 "(1, 3, 3)"    "(1, 2, 3)"                   0 1      0 1
+
+  4 "(1, NULL, 3)"    "(1, 2, 3)"                {} {}      {} {}
+  5 "(1, 3, 3)"    "(1, NULL, 3)"                {} {}      {} {}
+  6 "(1, NULL, 3)"    "(1, NULL, 3)"             {} {}      {} {}
+} {
+  foreach {tn2 expr res} [list \
+    2.$tn.lt "$v1 < $v2" $lt   \
+    2.$tn.gt "$v1 > $v2" $gt   \
+    2.$tn.le "$v1 <= $v2" $le   \
+    2.$tn.ge "$v1 >= $v2" $ge   \
+  ] {
+    do_execsql_test $tn2 "SELECT $expr" [list $res]
+
+    set map(0) [list]
+    set map() [list]
+    set map(1) [list 1]
+    do_execsql_test $tn2.where1 "SELECT * FROM one WHERE $expr" $map($res)
+
+    set map(0) [list 1]
+    set map() [list]
+    set map(1) [list]
+    do_execsql_test $tn2.where2 "SELECT * FROM one WHERE NOT $expr" $map($res)
+  }
+}
+
+do_execsql_test 3.0 {
+  CREATE TABLE t1(x, y);
+  INSERT INTO t1 VALUES(1, 1);
+  INSERT INTO t1 VALUES(1, 2);
+  INSERT INTO t1 VALUES(2, 3);
+  INSERT INTO t1 VALUES(2, 4);
+  INSERT INTO t1 VALUES(3, 5);
+  INSERT INTO t1 VALUES(3, 6);
+}
+
+foreach {tn r order} {
+  1 "(1, 1)"           "ORDER BY y"
+  2 "(1, 1)"           "ORDER BY x, y"
+  3 "(1, 2)"           "ORDER BY x, y DESC"
+  4 "(3, 6)"           "ORDER BY x DESC, y DESC"
+  5 "((3, 5))"         "ORDER BY x DESC, y"
+  6 "(SELECT 3, 5)"    "ORDER BY x DESC, y"
+} {
+  do_execsql_test 3.$tn.1 "SELECT $r == (SELECT x,y FROM t1 $order)" 1
+  do_execsql_test 3.$tn.2 "SELECT $r == (SELECT * FROM t1 $order)" 1
+
+  do_execsql_test 3.$tn.3 "
+    SELECT (SELECT * FROM t1 $order) == (SELECT * FROM t1 $order)
+  " 1
+  do_execsql_test 3.$tn.4 "
+    SELECT (SELECT 0, 0) == (SELECT * FROM t1 $order)
+  " 0
+}
+
+foreach {tn expr res} {
+  1 {(2, 2) BETWEEN (2, 2) AND (3, 3)} 1
+  2 {(2, 2) BETWEEN (2, NULL) AND (3, 3)} {}
+  3 {(2, 2) BETWEEN (3, NULL) AND (3, 3)} 0
+} {
+  do_execsql_test 4.$tn "SELECT $expr" [list $res]
+}
+
+foreach {tn expr res} {
+  1 {(2, 4) IN (SELECT * FROM t1)} 1
+  2 {(3, 4) IN (SELECT * FROM t1)} 0
+
+  3 {(NULL, 4) IN (SELECT * FROM t1)} {}
+  4 {(NULL, 0) IN (SELECT * FROM t1)} 0
+
+  5 {(NULL, 4) NOT IN (SELECT * FROM t1)} {}
+  6 {(NULL, 0) NOT IN (SELECT * FROM t1)} 1
+} {
+  do_execsql_test 5.$tn "SELECT $expr" [list $res]
+}
+
+do_execsql_test 6.0 {
+  CREATE TABLE hh(a, b, c);
+  INSERT INTO hh VALUES('abc', 1, 'i');
+  INSERT INTO hh VALUES('ABC', 1, 'ii');
+  INSERT INTO hh VALUES('def', 2, 'iii');
+  INSERT INTO hh VALUES('DEF', 2, 'iv');
+  INSERT INTO hh VALUES('GHI', 3, 'v');
+  INSERT INTO hh VALUES('ghi', 3, 'vi');
+
+  CREATE INDEX hh_ab ON hh(a, b); 
+}
+
+do_execsql_test 6.1 {
+  SELECT c FROM hh WHERE (a, b) = (SELECT 'abc', 1);
+} {i}
+do_execsql_test 6.2 {
+  SELECT c FROM hh WHERE (a, b) = (SELECT 'abc' COLLATE nocase, 1);
+} {i}
+do_execsql_test 6.3 {
+  SELECT c FROM hh WHERE a = (SELECT 'abc' COLLATE nocase) AND b = (SELECT 1);
+} {i}
+do_execsql_test 6.4 {
+  SELECT c FROM hh WHERE +a = (SELECT 'abc' COLLATE nocase) AND b = (SELECT 1);
+} {i}
+do_execsql_test 6.5 {
+  SELECT c FROM hh WHERE a = (SELECT 'abc') COLLATE nocase AND b = (SELECT 1);
+} {i ii}
+do_catchsql_test 6.6 {
+  SELECT c FROM hh WHERE (a, b) = (SELECT 'abc', 1) COLLATE nocase;
+} {1 {row value misused}}
+do_catchsql_test 6.7 {
+  SELECT c FROM hh WHERE (a, b) = 1;
+} {1 {row value misused}}
+do_execsql_test 6.8 {
+  SELECT c FROM hh WHERE (a COLLATE nocase, b) = (SELECT 'def', 2);
+} {iii iv}
+do_execsql_test 6.9 {
+  SELECT c FROM hh WHERE (a COLLATE nocase, b) IS NOT (SELECT 'def', 2);
+} {i ii v vi}
+do_execsql_test 6.10 {
+  SELECT c FROM hh WHERE (b, a) = (SELECT 2, 'def');
+} {iii}
+
+do_execsql_test 7.0 {
+  CREATE TABLE xy(i INTEGER PRIMARY KEY, j, k);
+  INSERT INTO xy VALUES(1, 1, 1);
+  INSERT INTO xy VALUES(2, 2, 2);
+  INSERT INTO xy VALUES(3, 3, 3);
+  INSERT INTO xy VALUES(4, 4, 4);
+}
+
+
+foreach {tn sql res eqp} {
+  1 "SELECT * FROM xy WHERE (i, j) IS (2, 2)" {2 2 2} 
+    "SEARCH xy USING INTEGER PRIMARY KEY (rowid=?)"
+
+  2 "SELECT * FROM xy WHERE (k, j) < (2, 3)" {1 1 1 2 2 2}
+    "SCAN xy"
+
+  3 "SELECT * FROM xy WHERE (i, j) < (2, 3)" {1 1 1 2 2 2}
+    "SEARCH xy USING INTEGER PRIMARY KEY (rowid<?)"
+
+  4 "SELECT * FROM xy WHERE (i, j) > (2, 1)" {2 2 2 3 3 3 4 4 4}
+    "SEARCH xy USING INTEGER PRIMARY KEY (rowid>?)"
+
+  5 "SELECT * FROM xy WHERE (i, j) > ('2', 1)" {2 2 2 3 3 3 4 4 4}
+    "SEARCH xy USING INTEGER PRIMARY KEY (rowid>?)"
+
+} {
+  do_eqp_test 7.$tn.1 $sql $eqp
+  do_execsql_test 7.$tn.2 $sql $res
+}
+
+do_execsql_test 8.0 {
+  CREATE TABLE j1(a);
+}
+do_execsql_test 8.1 {
+  SELECT * FROM j1 WHERE (select min(a) FROM j1) IN (?, ?, ?)
+}
+
+do_execsql_test 9.0 {
+  CREATE TABLE t2(a INTEGER PRIMARY KEY, b, c);
+  INSERT INTO t2 VALUES(1, 1, 1);
+  INSERT INTO t2 VALUES(2, 2, 2);
+  INSERT INTO t2 VALUES(3, 3, 3);
+  INSERT INTO t2 VALUES(4, 4, 4);
+  INSERT INTO t2 VALUES(5, 5, 5);
+}
+
+foreach {tn q res} {
+  1 "(a, b) > (2, 1)" {2 3 4 5}
+  2 "(a, b) > (2, 2)" {3 4 5}
+  3 "(a, b) < (4, 5)" {1 2 3 4}
+  4 "(a, b) < (4, 3)" {1 2 3}
+} {
+  do_execsql_test 9.$tn "SELECT c FROM t2 WHERE $q" $res
+} 
+
+do_execsql_test 10.0 {
+  CREATE TABLE dual(dummy); INSERT INTO dual(dummy) VALUES('X');
+  CREATE TABLE t3(a TEXT,b TEXT,c TEXT,d TEXT,e TEXT,f TEXT);
+  CREATE INDEX t3x ON t3(b,c,d,e,f);
+
+  SELECT a FROM t3
+    WHERE (c,d) IN (SELECT 'c','d' FROM dual)
+    AND (a,b,e) IN (SELECT 'a','b','d' FROM dual);
+}
+
+do_catchsql_test 11.1 {
+  CREATE TABLE t11(a);
+  SELECT * FROM t11 WHERE (a,a)<=1;
+} {1 {row value misused}}
+do_catchsql_test 11.2 {
+  SELECT * FROM t11 WHERE (a,a)<1;
+} {1 {row value misused}}
+do_catchsql_test 11.3 {
+  SELECT * FROM t11 WHERE (a,a)>=1;
+} {1 {row value misused}}
+do_catchsql_test 11.4 {
+  SELECT * FROM t11 WHERE (a,a)>1;
+} {1 {row value misused}}
+do_catchsql_test 11.5 {
+  SELECT * FROM t11 WHERE (a,a)==1;
+} {1 {row value misused}}
+do_catchsql_test 11.6 {
+  SELECT * FROM t11 WHERE (a,a)<>1;
+} {1 {row value misused}}
+do_catchsql_test 11.7 {
+  SELECT * FROM t11 WHERE (a,a) IS 1;
+} {1 {row value misused}}
+do_catchsql_test 11.8 {
+  SELECT * FROM t11 WHERE (a,a) IS NOT 1;
+} {1 {row value misused}}
+
+# 2016-10-27: https://www.sqlite.org/src/tktview/fef4bb4bd9185ec8f
+# Incorrect result from a LEFT JOIN with a row-value constraint
+#
+do_execsql_test 12.1 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a INT,b INT); INSERT INTO t1 VALUES(1,2);
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t2(x INT,y INT); INSERT INTO t2 VALUES(3,4);
+  SELECT *,'x' FROM t1 LEFT JOIN t2 ON (a,b)=(x,y);
+} {1 2 {} {} x}
+db null -
+do_execsql_test 12.2 {
+  SELECT t1.*, t2.* FROM t2 RIGHT JOIN t1 ON (a,b)=(x,y);
+} {1 2 - -}
+do_execsql_test 12.3 {
+  SELECT t1.*, t2.* FROM t1 FULL JOIN t2 ON (a,b)=(x,y)
+   ORDER BY coalesce(a,x);
+} {
+  1 2 - -
+  - - 3 4
+}
+db null {}
+
+
+foreach {tn sql} {
+  0 "SELECT (1,2) AS x WHERE x=3"
+  1 "SELECT (1,2) BETWEEN 1 AND 2"
+  2 "SELECT 1 BETWEEN (1,2) AND 2"
+  3 "SELECT 2 BETWEEN 1 AND (1,2)"
+  4 "SELECT (1,2) FROM (SELECT 1) ORDER BY 1"
+  5 "SELECT (1,2) FROM (SELECT 1) GROUP BY 1"
+} {
+  do_catchsql_test 13.$tn $sql {1 {row value misused}}
+}
+
+do_execsql_test 14.0 {
+  CREATE TABLE t12(x);
+  INSERT INTO t12 VALUES(2), (4);
+}
+do_execsql_test 14.1 "SELECT 1 WHERE (2,2) BETWEEN (1,1) AND (3,3)" 1
+do_execsql_test 14.2 "SELECT CASE (2,2) WHEN (1, 1) THEN 2 ELSE 1 END" 1
+do_execsql_test 14.3 "SELECT CASE (SELECT 2,2) WHEN (1, 1) THEN 2 ELSE 1 END" 1
+do_execsql_test 14.4 "SELECT 1 WHERE (SELECT 2,2) BETWEEN (1,1) AND (3,3)" 1
+do_execsql_test 14.5 "SELECT 1 FROM t12 WHERE (x,1) BETWEEN (1,1) AND (3,3)" 1
+do_execsql_test 14.6 {
+  SELECT 1 FROM t12 WHERE (1,x) BETWEEN (1,1) AND (3,3)
+} {1 1}
+
+#-------------------------------------------------------------------------
+# Test that errors are not concealed by the SELECT flattening or
+# WHERE-clause push-down optimizations.
+do_execsql_test 14.1 {
+  CREATE TABLE x1(a PRIMARY KEY, b);
+  CREATE TABLE x2(a INTEGER PRIMARY KEY, b);
+}
+
+foreach {tn n sql} {
+  1 0 "SELECT * FROM (SELECT (1, 1) AS c FROM x1) WHERE c=1"
+  2 2 "SELECT * FROM (SELECT 1 AS x, (SELECT 8,9) AS y) WHERE y<1"
+  3 3 "SELECT * FROM (SELECT 1 AS x, (SELECT 8,9,10) AS y) WHERE y<1"
+  4 0 "SELECT * FROM (SELECT (a, b) AS c FROM x1), x2 WHERE c=a"
+  5 0 "SELECT * FROM (SELECT a AS c, (1, 2, 3) FROM x1), x2 WHERE c=a"
+  6 0 "SELECT * FROM (SELECT 1 AS c, (1, 2, 3) FROM x1) WHERE c=1"
+} {
+  if {$n==0} {
+    set err "row value misused"
+  } else {
+    set err "sub-select returns $n columns - expected 1"
+  }
+  do_catchsql_test 14.2.$tn $sql [list 1 $err]
+}
+
+#--------------------------------------------------------------------------
+# Test for vector size mismatches concealed by unexpanded subqueries.
+#
+do_catchsql_test 15.1 {
+  DETACH (SELECT * FROM (SELECT 1,2))<3;
+} {1 {row value misused}}
+do_catchsql_test 15.2 {
+  UPDATE x1 SET a=(SELECT * FROM (SELECT b,2))<3;
+} {1 {row value misused}}
+do_catchsql_test 15.3 {
+  UPDATE x1 SET a=NULL WHERE  a<(SELECT * FROM (SELECT b,2));
+} {1 {sub-select returns 2 columns - expected 1}}
+do_catchsql_test 15.4 {
+  DELETE FROM x1 WHERE  a<(SELECT * FROM (SELECT b,2));
+} {1 {sub-select returns 2 columns - expected 1}}
+do_catchsql_test 15.5 {
+  INSERT INTO x1(a,b) VALUES(1,(SELECT * FROM (SELECT 1,2))<3);
+} {1 {row value misused}}
+
+#-------------------------------------------------------------------------
+# Row-values used in UPDATE statements within TRIGGERs
+#
+# Ticket https://www.sqlite.org/src/info/8c9458e703666e1a
+#
+do_execsql_test 16.1 {
+  CREATE TABLE t16a(a,b,c);
+  INSERT INTO t16a VALUES(1,2,3);
+  CREATE TABLE t16b(x);
+  INSERT INTO t16b(x) VALUES(1);
+  CREATE TRIGGER t16r AFTER UPDATE ON t16b BEGIN
+     UPDATE t16a SET (a,b,c)=(SELECT new.x,new.x+1,new.x+2);
+  END;
+  UPDATE t16b SET x=7;
+  SELECT * FROM t16a;
+} {7 8 9}
+do_execsql_test 16.2 {
+  UPDATE t16b SET x=97;
+  SELECT * FROM t16a;
+} {97 98 99}
+
+do_execsql_test 16.3 {
+  CREATE TABLE t16c(a, b, c, d, e);
+  INSERT INTO t16c VALUES(1, 'a', 'b', 'c', 'd');
+  CREATE TRIGGER t16c1 AFTER INSERT ON t16c BEGIN
+    UPDATE t16c SET (c, d) = (SELECT 'A', 'B'), (e, b) = (SELECT 'C', 'D')
+      WHERE a = new.a-1;
+  END;
+
+  SELECT * FROM t16c;
+} {1 a b c d}
+
+do_execsql_test 16.4 {
+  INSERT INTO t16c VALUES(2, 'w', 'x', 'y', 'z');
+  SELECT * FROM t16c;
+} {
+  1 D A B C 
+  2 w x y z
+}
+
+do_execsql_test 16.5 {
+  DROP TRIGGER t16c1;
+  PRAGMA recursive_triggers = 1;
+  INSERT INTO t16c VALUES(3, 'i', 'ii', 'iii', 'iv');
+  CREATE TRIGGER t16c1 AFTER UPDATE ON t16c WHEN new.a>1 BEGIN
+    UPDATE t16c SET (e, d) = (
+      SELECT b, c FROM t16c WHERE a = new.a-1
+    ), (c, b) = (
+      SELECT d, e FROM t16c WHERE a = new.a-1
+    ) WHERE a = new.a-1;
+  END;
+
+  UPDATE t16c SET a=a WHERE a=3;
+  SELECT * FROM t16c;
+} {
+  1 C B A D
+  2 z y x w
+  3 i ii iii iv
+}
+
+do_execsql_test 17.0 {
+  CREATE TABLE b1(a, b);
+  CREATE TABLE b2(x);
+}
+
+do_execsql_test 17.1 {
+  SELECT * FROM b2 CROSS JOIN b1 
+  WHERE b2.x=b1.a AND (b1.a, 2) 
+  IN (VALUES(1, 2));
+} {}
+
+do_execsql_test 18.0 {
+  CREATE TABLE b3 ( a, b, PRIMARY KEY (a, b) );
+  CREATE TABLE b4 ( a );
+  CREATE TABLE b5 ( a, b );
+  INSERT INTO b3 VALUES (1, 1), (1, 2);
+  INSERT INTO b4 VALUES (1);
+  INSERT INTO b5 VALUES (1, 1), (1, 2);
+}
+
+do_execsql_test 18.1 {
+  SELECT * FROM b3 WHERE (SELECT b3.a, b3.b) IN ( SELECT a, b FROM b5 )
+} {1 1 1 2}
+do_execsql_test 18.2 {
+  SELECT * FROM b3 WHERE (VALUES(b3.a, b3.b)) IN ( SELECT a, b FROM b5 );
+} {1 1 1 2}
+do_execsql_test 18.3 {
+  SELECT * FROM b3 WHERE (b3.a, b3.b) IN ( SELECT a, b FROM b5 ); 
+} {1 1 1 2}
+do_execsql_test 18.4 {
+  SELECT * FROM b3 JOIN b4 ON b4.a = b3.a
+  WHERE (SELECT b3.a, b3.b) IN ( SELECT a, b FROM b5 ); 
+} {1 1 1 1 2 1}
+do_execsql_test 18.5 {
+  SELECT * FROM b3 JOIN b4 ON b4.a = b3.a
+  WHERE (VALUES(b3.a, b3.b)) IN ( SELECT a, b FROM b5 ); 
+} {1 1 1 1 2 1}
+do_execsql_test 18.6 {
+  SELECT * FROM b3 JOIN b4 ON b4.a = b3.a
+  WHERE (b3.a, b3.b) IN ( SELECT a, b FROM b5 ); 
+} {1 1 1 1 2 1}
+
+ 
+# 2018-02-13 Ticket https://www.sqlite.org/src/tktview/f484b65f3d6230593c3
+# Incorrect result from a row-value comparison in the WHERE clause.
+#
+do_execsql_test 19.1 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY,b);
+  INSERT INTO t1(a,b) VALUES(1,11),(2,22),(3,33),(4,44);
+  SELECT * FROM t1 WHERE (a,b)>(0,0) ORDER BY a;
+} {1 11 2 22 3 33 4 44}
+do_execsql_test 19.2 {
+  SELECT * FROM t1 WHERE (a,b)>=(0,0) ORDER BY a;
+} {1 11 2 22 3 33 4 44}
+do_execsql_test 19.3 {
+  SELECT * FROM t1 WHERE (a,b)<(5,0) ORDER BY a DESC;
+} {4 44 3 33 2 22 1 11}
+do_execsql_test 19.4 {
+  SELECT * FROM t1 WHERE (a,b)<=(5,0) ORDER BY a DESC;
+} {4 44 3 33 2 22 1 11}
+do_execsql_test 19.5 {
+  SELECT * FROM t1 WHERE (a,b)>(3,0) ORDER BY a;
+} {3 33 4 44}
+do_execsql_test 19.6 {
+  SELECT * FROM t1 WHERE (a,b)>=(3,0) ORDER BY a;
+} {3 33 4 44}
+do_execsql_test 19.7 {
+  SELECT * FROM t1 WHERE (a,b)<(3,0) ORDER BY a DESC;
+} {2 22 1 11}
+do_execsql_test 19.8 {
+  SELECT * FROM t1 WHERE (a,b)<=(3,0) ORDER BY a DESC;
+} {2 22 1 11}
+do_execsql_test 19.9 {
+  SELECT * FROM t1 WHERE (a,b)>(3,32) ORDER BY a;
+} {3 33 4 44}
+do_execsql_test 19.10 {
+  SELECT * FROM t1 WHERE (a,b)>(3,33) ORDER BY a;
+} {4 44}
+do_execsql_test 19.11 {
+  SELECT * FROM t1 WHERE (a,b)>=(3,33) ORDER BY a;
+} {3 33 4 44}
+do_execsql_test 19.12 {
+  SELECT * FROM t1 WHERE (a,b)>=(3,34) ORDER BY a;
+} {4 44}
+do_execsql_test 19.13 {
+  SELECT * FROM t1 WHERE (a,b)<(3,34) ORDER BY a DESC;
+} {3 33 2 22 1 11}
+do_execsql_test 19.14 {
+  SELECT * FROM t1 WHERE (a,b)<(3,33) ORDER BY a DESC;
+} {2 22 1 11}
+do_execsql_test 19.15 {
+  SELECT * FROM t1 WHERE (a,b)<=(3,33) ORDER BY a DESC;
+} {3 33 2 22 1 11}
+do_execsql_test 19.16 {
+  SELECT * FROM t1 WHERE (a,b)<=(3,32) ORDER BY a DESC;
+} {2 22 1 11}
+do_execsql_test 19.21 {
+  SELECT * FROM t1 WHERE (0,0)<(a,b) ORDER BY a;
+} {1 11 2 22 3 33 4 44}
+do_execsql_test 19.22 {
+  SELECT * FROM t1 WHERE (0,0)<=(a,b) ORDER BY a;
+} {1 11 2 22 3 33 4 44}
+do_execsql_test 19.23 {
+  SELECT * FROM t1 WHERE (5,0)>(a,b) ORDER BY a DESC;
+} {4 44 3 33 2 22 1 11}
+do_execsql_test 19.24 {
+  SELECT * FROM t1 WHERE (5,0)>=(a,b) ORDER BY a DESC;
+} {4 44 3 33 2 22 1 11}
+do_execsql_test 19.25 {
+  SELECT * FROM t1 WHERE (3,0)<(a,b) ORDER BY a;
+} {3 33 4 44}
+do_execsql_test 19.26 {
+  SELECT * FROM t1 WHERE (3,0)<=(a,b) ORDER BY a;
+} {3 33 4 44}
+do_execsql_test 19.27 {
+  SELECT * FROM t1 WHERE (3,0)>(a,b) ORDER BY a DESC;
+} {2 22 1 11}
+do_execsql_test 19.28 {
+  SELECT * FROM t1 WHERE (3,0)>=(a,b) ORDER BY a DESC;
+} {2 22 1 11}
+do_execsql_test 19.29 {
+  SELECT * FROM t1 WHERE (3,32)<(a,b) ORDER BY a;
+} {3 33 4 44}
+do_execsql_test 19.30 {
+  SELECT * FROM t1 WHERE (3,33)<(a,b) ORDER BY a;
+} {4 44}
+do_execsql_test 19.31 {
+  SELECT * FROM t1 WHERE (3,33)<=(a,b) ORDER BY a;
+} {3 33 4 44}
+do_execsql_test 19.32 {
+  SELECT * FROM t1 WHERE (3,34)<=(a,b) ORDER BY a;
+} {4 44}
+do_execsql_test 19.33 {
+  SELECT * FROM t1 WHERE (3,34)>(a,b) ORDER BY a DESC;
+} {3 33 2 22 1 11}
+do_execsql_test 19.34 {
+  SELECT * FROM t1 WHERE (3,33)>(a,b) ORDER BY a DESC;
+} {2 22 1 11}
+do_execsql_test 19.35 {
+  SELECT * FROM t1 WHERE (3,33)>=(a,b) ORDER BY a DESC;
+} {3 33 2 22 1 11}
+do_execsql_test 19.36 {
+  SELECT * FROM t1 WHERE (3,32)>=(a,b) ORDER BY a DESC;
+} {2 22 1 11}
+
+# 2018-02-18: Memory leak nested row-value.  Detected by OSSFuzz.
+#
+do_catchsql_test 20.1 {
+  SELECT 1 WHERE (2,(2,0)) IS (2,(2,0));
+} {0 1}
+
+# 2018-11-03: Ticket https://www.sqlite.org/src/info/1a84668dcfdebaf1
+# Assertion fault when doing row-value operations on a primary key
+# containing duplicate columns.
+#
+do_execsql_test 21.0 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a,b,PRIMARY KEY(b,b));
+  INSERT INTO t1 VALUES(1,2),(3,4),(5,6);
+  SELECT * FROM t1 WHERE (a,b) IN (VALUES(1,2));  
+} {1 2}
+
+# 2019-08-09: Multi-column subquery on the RHS of an IN operator.
+#
+do_execsql_test 22.100 {
+  SELECT (SELECT 3,4 UNION SELECT 5,6 ORDER BY 1) IN (SELECT 3,4);
+  SELECT (SELECT 3,4 UNION SELECT 5,6 ORDER BY 1) IN (SELECT 5,6);
+  SELECT (SELECT 5,6 UNION SELECT 3,4 ORDER BY 1) IN (SELECT 3,4);
+  SELECT (SELECT 5,6 UNION SELECT 3,4 ORDER BY 1) IN (SELECT 5,6);
+  SELECT (SELECT 3,4 UNION SELECT 5,6 ORDER BY 1 DESC) IN (SELECT 3,4);
+  SELECT (SELECT 3,4 UNION SELECT 5,6 ORDER BY 1 DESC) IN (SELECT 5,6);
+  SELECT (SELECT 5,6 UNION SELECT 3,4 ORDER BY 1 DESC) IN (SELECT 3,4);
+  SELECT (SELECT 5,6 UNION SELECT 3,4 ORDER BY 1 DESC) IN (SELECT 5,6);
+} {1 0 1 0 0 1 0 1}
+
+# 2019-10-21 Ticket b47e3627ecaadbde
+#
+do_execsql_test 23.100 {
+  DROP TABLE IF EXISTS t0;
+  CREATE TABLE t0(aa COLLATE NOCASE, bb);
+  INSERT INTO t0 VALUES('a', 'A');
+  SELECT (+bb,1) >= (aa, 1), (aa,1)<=(+bb,1) FROM t0;
+  SELECT 2 FROM t0 WHERE (+bb,1) >= (aa,1);
+  SELECT 3 FROM t0 WHERE (aa,1) <= (+bb,1);
+} {0 1 3}
+do_execsql_test 23.110 {
+  SELECT (SELECT +bb,1) >= (aa, 1), (aa,1)<=(SELECT +bb,1) FROM t0;
+  SELECT 2 FROM t0 WHERE (SELECT +bb,1) >= (aa,1);
+  SELECT 3 FROM t0 WHERE (aa,1) <= (SELECT +bb,1);
+} {0 1 3}
+
+# 2019-10-22 Ticket 6ef984af8972c2eb
+do_execsql_test 24.100 {
+  DROP TABLE t0;
+  CREATE TABLE t0(c0 TEXT PRIMARY KEY);
+  INSERT INTO t0(c0) VALUES ('');
+  SELECT (t0.c0, TRUE) > (CAST(0 AS REAL), FALSE) FROM t0;
+  SELECT 2 FROM t0 WHERE (t0.c0, TRUE) > (CAST('' AS REAL), FALSE);
+} {1 2}
+
+# 2019-10-23 Ticket 135c9da7513e5a97
+do_execsql_test 25.10 {
+  DROP TABLE t0;
+  CREATE TABLE t0(c0 UNIQUE);
+  INSERT INTO t0(c0) VALUES('a');
+  SELECT (t0.c0, 0) < ('B' COLLATE NOCASE, 0) FROM t0;
+  SELECT 2 FROM t0 WHERE (t0.c0, 0) < ('B' COLLATE NOCASE, 0);
+} {1 2}
+do_execsql_test 25.20 {
+  SELECT ('B' COLLATE NOCASE, 0)> (t0.c0, 0) FROM t0;
+  SELECT 2 FROM t0 WHERE ('B' COLLATE NOCASE, 0)> (t0.c0, 0);
+} {1 2}
+do_execsql_test 25.30 {
+  SELECT ('B', 0)> (t0.c0 COLLATE nocase, 0) FROM t0;
+  SELECT 2 FROM t0 WHERE ('B', 0)> (t0.c0 COLLATE nocase, 0);
+} {1 2}
+do_execsql_test 25.40 {
+  SELECT (t0.c0 COLLATE nocase, 0) < ('B', 0) FROM t0;
+  SELECT 2 FROM t0 WHERE (t0.c0 COLLATE nocase, 0) < ('B', 0);
+} {1 2}
+
+# 2019-11-04 Ticket 02aa2bd02f97d0f2
+# The TK_VECTOR operator messes up sqlite3ExprImpliesNonNull() which
+# causes incorrect LEFT JOIN strength reduction.  TK_VECTOR should be
+# treated the same as TK_OR.
+#
+db close
+sqlite3 db :memory:
+do_execsql_test 26.10 {
+  CREATE TABLE t0(c0);
+  CREATE TABLE t1(c1);
+  INSERT INTO t1(c1) VALUES (0);
+  SELECT (c0, x'') != (NULL, 0) FROM t1 LEFT JOIN t0;
+} {1}
+do_execsql_test 26.20 {
+  SELECT 2 FROM t1 LEFT JOIN t0 ON (c0, x'') != (NULL, 0);
+} {2}
+do_execsql_test 26.21 {
+  SELECT 21 FROM t0 RIGHT JOIN t1 ON (c0, x'') != (NULL, 0);
+} {21}
+do_execsql_test 26.30 {
+  SELECT 3 FROM t1 LEFT JOIN t0 WHERE (c0, x'') != (NULL, 0);
+} {3}
+do_execsql_test 26.31 {
+  SELECT 31 FROM t0 RIGHT JOIN t1 WHERE (c0, x'') != (NULL, 0);
+} {31}
+
+# 2019-12-30 ticket 892575cdba4e1e36
+#
+reset_db
+do_catchsql_test 27.10 {
+  CREATE TABLE t0(c0 CHECK(((0, 0) > (0, c0))));
+  INSERT INTO t0(c0) VALUES(0) ON CONFLICT(c0) DO UPDATE SET c0 = 3;
+} {1 {ON CONFLICT clause does not match any PRIMARY KEY or UNIQUE constraint}}
+
+# 2021-02-03
+# https://bugs.chromium.org/p/chromium/issues/detail?id=1173511
+# Faulty assert() statement.
+#
+reset_db
+do_catchsql_test 28.10 {
+  CREATE TABLE t0(c0 PRIMARY KEY, c1);
+  CREATE TRIGGER trigger0 BEFORE DELETE ON t0 BEGIN
+   SELECT (SELECT c0,c1  FROM t0)  FROM t0;
+  END ;
+  DELETE FROM t0;
+} {1 {sub-select returns 2 columns - expected 1}}
+
+# 2021-03-19
+# dbsqlfuzz find of a NEVER().
+do_catchsql_test 29.1 {
+  SELECT (SELECT 1 WHERE ((SELECT 1 WHERE (2,(2,0)) IS (2,(20))),(2,0)) IS (2,(20))) WHERE (2,(2,0)) IS (2 IN(SELECT 1 WHERE (2,(2,2,0)) IS (2,(20))),(20));
+} {1 {row value misused}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 30.0 {
+  CREATE TABLE t1(x, y, z);
+  CREATE TABLE t2(a, b);
+
+  INSERT INTO t1 VALUES(1000, 2000, 3000);
+  INSERT INTO t2 VALUES(NULL, NULL);
+}
+
+do_execsql_test 30.1 {
+  UPDATE t2 SET (a,b)=(
+    SELECT max( t1.x ) OVER( PARTITION BY sum( (SELECT t1.y) ) ), 2
+  )
+  FROM t1;
+} {}
+
+do_execsql_test 30.2 {
+  SELECT * FROM t2
+} {1000 2}
+
+reset_db
+do_execsql_test 30.3 {
+  CREATE TABLE t1(x INT PRIMARY KEY, y, z);
+  CREATE TABLE t2(a,b,c,d,e,PRIMARY KEY(a,b))WITHOUT ROWID;
+
+  UPDATE t2 SET (d,d,a)=(SELECT EXISTS(SELECT 1 IN(SELECT max( 1 IN(SELECT x ORDER BY 1)) OVER(PARTITION BY sum((SELECT y FROM t1 UNION SELECT x ORDER BY 1)))INTERSECT SELECT EXISTS(SELECT 1 FROM t1 UNION SELECT x ORDER BY 1) ORDER BY 1) ORDERa)|9 AS blob, 2, 3) FROM t1 WHERE x<a;
+}
+
+# 2022-01-21 https://sqlite.org/forum/forumpost/ab95010d410a0a55
+reset_db
+do_execsql_test 31.1 {
+  CREATE TABLE a(a1 PRIMARY KEY,a2);
+  INSERT INTO a VALUES(1,5);
+  CREATE TABLE b(b1 UNIQUE,b2);
+  SELECT * FROM a LEFT JOIN b ON b2=NULL AND b2=5 WHERE (b1,substr(b.b1,1,1))==(SELECT 1024,'b');
+} {}
+do_execsql_test 31.1b {
+  SELECT * FROM b RIGHT JOIN a ON b2=NULL AND b2=5 WHERE (b1,substr(b.b1,1,1))==(SELECT 1024,'b');
+} {}
+do_execsql_test 31.2 {
+  CREATE TABLE t1(a);
+  INSERT INTO t1 VALUES(0);
+  CREATE TABLE t2(b,c,d);
+  INSERT INTO t2 VALUES(NULL,123,456);
+  SELECT * FROM t1 LEFT JOIN t2 ON b=NULL WHERE (c,d)==(SELECT 123, 456+a);
+} {}
+do_execsql_test 31.2b {
+  SELECT * FROM t2 RIGHT JOIN t1 ON b=NULL WHERE (c,d)==(SELECT 123, 456+a);
+} {}
+
+# 2022-02-03 dbsqlfuzz 80a9fade844b4fb43564efc972bcb2c68270f5d1
+reset_db
+do_execsql_test 32.1 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b INT, c INT);
+  CREATE TABLE t2(d INTEGER PRIMARY KEY);
+  INSERT INTO t1(a,b,c) VALUES(500,654,456);
+  INSERT INTO t1(a,b,c) VALUES(501,655,456);
+  INSERT INTO t1(a,b,c) VALUES(502,654,122);
+  INSERT INTO t1(a,b,c) VALUES(503,654,221);
+  INSERT INTO t1(a,b,c) VALUES(601,654,122);
+  INSERT INTO t2(d) VALUES(456);
+  INSERT INTO t2(d) VALUES(122);
+  SELECT a FROM (
+    SELECT t1.a FROM t2, t1 
+    WHERE (987, t1.b) = ( SELECT 987, 654 ) AND t2.d=t1.c
+  ) AS t3
+  WHERE a=1234 OR a<=567;
+} {500 502}
+
+# 2022-07-15
+# https://sqlite.org/forum/forumpost/3607259d3c
+#
+reset_db
+do_execsql_test 33.1 {
+  CREATE TABLE t1(a INT, b INT PRIMARY KEY) WITHOUT ROWID;
+  INSERT INTO t1(a, b) VALUES (0, 1),(15,-7),(3,100);
+  ANALYZE;
+} {}
+do_execsql_test 33.2 {
+  SELECT * FROM t1 WHERE (b,a) BETWEEN (0,5) AND (99,-2);
+} {0 1}
+do_execsql_test 33.3 {
+  SELECT * FROM t1 WHERE (b,a) BETWEEN (-8,5) AND (0,-2);
+} {15 -7}
+do_execsql_test 33.3 {
+  SELECT * FROM t1 WHERE (b,a) BETWEEN (3,5) AND (100,4);
+} {3 100}
+do_execsql_test 33.3 {
+  SELECT * FROM t1 WHERE (b,a) BETWEEN (3,5) AND (100,2);
+} {}
+do_execsql_test 33.3 {
+  SELECT * FROM t1 WHERE (a,b) BETWEEN (-2,99) AND (1,0);
+} {0 1}
+do_execsql_test 33.3 {
+  SELECT * FROM t1 WHERE (a,b) BETWEEN (14,99) AND (16,0);
+} {15 -7}
+do_execsql_test 33.3 {
+  SELECT * FROM t1 WHERE (a,b) BETWEEN (2,99) AND (4,0);
+} {3 100}
+
+finish_test
diff --git a/test/rowvalue2.test b/test/rowvalue2.test
new file mode 100644
index 0000000000000000000000000000000000000000..1502e31a545a750aab8a1e0908535a3a0cf4ca03
--- /dev/null
+++ b/test/rowvalue2.test
@@ -0,0 +1,279 @@
+# 2016 June 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the SELECT statement.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix rowvalue2
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b, c);
+  INSERT INTO t1 VALUES(0, 0, 0);
+  INSERT INTO t1 VALUES(0, 1, 1);
+  INSERT INTO t1 VALUES(1, 0, 2);
+  INSERT INTO t1 VALUES(1, 1, 3);
+
+  CREATE INDEX i1 ON t1(a, b);
+}
+
+do_execsql_test 1.1.1 { SELECT c FROM t1 WHERE (a, b) >= (1, 0) } {2 3} 
+do_execsql_test 1.1.2 { SELECT c FROM t1 WHERE (a, b) > (1, 0)  } {3}
+
+#-------------------------------------------------------------------------
+
+do_execsql_test 2.0.1 {
+  CREATE TABLE t2(a INTEGER, b INTEGER, c INTEGER, d INTEGER);
+  CREATE INDEX i2 ON t2(a, b, c);
+}
+do_test 2.0.2 {
+  foreach a {0 1 2 3} {
+  foreach b {0 1 2 3} {
+  foreach c {0 1 2 3} {
+    execsql { INSERT INTO t2 VALUES($a, $b, $c, $c + $b*4 + $a*16); }
+  }}}
+} {}
+
+do_execsql_test 2.1 {
+  SELECT d FROM t2 WHERE (a, b) > (2, 2);
+} [db eval { SELECT d FROM t2 WHERE a>2 OR (a=2 AND b>2) }]
+
+do_execsql_test 2.2 {
+  SELECT d FROM t2 WHERE (a, b) >= (2, 2);
+} [db eval { SELECT d FROM t2 WHERE a>2 OR (a=2 AND b>=2) }]
+
+do_execsql_test 2.3 {
+  SELECT d FROM t2 WHERE a=1 AND (b, c) >= (1, 2);
+} [db eval { SELECT d FROM t2 WHERE +a=1 AND (b>1 OR (b==1 AND c>=2)) }]
+
+do_execsql_test 2.4 {
+  SELECT d FROM t2 WHERE a=1 AND (b, c) > (1, 2);
+} [db eval { SELECT d FROM t2 WHERE +a=1 AND (b>1 OR (b==1 AND c>2)) }]
+
+#-------------------------------------------------------------------------
+
+set words {
+airfare airfield airfields airflow airfoil
+airfoils airframe airframes airily airing
+airings airless airlift airlifts airline
+airliner airlines airlock airlocks airmail
+airmails airman airmen airplane airplanes
+
+arraignment arraignments arraigns arrange arranged
+arrangement arrangements arranger arrangers arranges
+arranging arrant array arrayed arrays
+arrears arrest arrested arrester arresters
+arresting arrestingly arrestor arrestors arrests
+
+edifices edit edited editing edition
+editions editor editorial editorially editorials
+editors edits educable educate educated
+educates educating education educational educationally
+educations educator educators eel eelgrass
+}
+
+do_test 3.0 {
+  execsql { CREATE TABLE t3(a, b, c, w); }
+  foreach w $words {
+    set a [string range $w 0 2]
+    set b [string range $w 3 5]
+    set c [string range $w 6 end]
+    execsql { INSERT INTO t3 VALUES($a, $b, $c, $w) }
+  }
+} {}
+
+
+foreach {tn idx} {
+  IDX1 {}
+  IDX2 { CREATE INDEX i3 ON t3(a, b, c); }
+  IDX3 { CREATE INDEX i3 ON t3(a, b); }
+  IDX4 { CREATE INDEX i3 ON t3(a); }
+} {
+  execsql { DROP INDEX IF EXISTS i3 }
+  execsql $idx
+
+  foreach w $words {
+    set a [string range $w 0 2]
+    set b [string range $w 3 5]
+    set c [string range $w 6 end]
+
+    foreach op [list > >= < <= == IS] {
+      do_execsql_test 3.1.$tn.$w.$op [subst -novar {
+        SELECT rowid FROM t3 WHERE (a, b, c) [set op] ($a, $b, $c) 
+        ORDER BY +rowid
+      }] [db eval [subst -novar {
+        SELECT rowid FROM t3 WHERE w [set op] $w ORDER BY +rowid
+      }]]
+
+      do_execsql_test 3.1.$tn.$w.$op.subselect [subst -novar {
+        SELECT rowid FROM t3 WHERE (a, b, c) [set op] (
+          SELECT a, b, c FROM t3 WHERE w = $w
+        )
+        ORDER BY +rowid
+      }] [db eval [subst -novar {
+        SELECT rowid FROM t3 WHERE w [set op] $w ORDER BY +rowid
+      }]]
+    }
+
+  }
+}
+
+#-------------------------------------------------------------------------
+#
+
+do_execsql_test 4.0 {
+  CREATE TABLE t4(a, b, c);
+  INSERT INTO t4 VALUES(NULL, NULL, NULL);
+  INSERT INTO t4 VALUES(NULL, NULL, 0);
+  INSERT INTO t4 VALUES(NULL, NULL, 1);
+  INSERT INTO t4 VALUES(NULL,    0, NULL);
+  INSERT INTO t4 VALUES(NULL,    0, 0);
+  INSERT INTO t4 VALUES(NULL,    0, 1);
+  INSERT INTO t4 VALUES(NULL,    1, NULL);
+  INSERT INTO t4 VALUES(NULL,    1, 0);
+  INSERT INTO t4 VALUES(NULL,    1, 1);
+
+  INSERT INTO t4 VALUES(   0, NULL, NULL);
+  INSERT INTO t4 VALUES(   0, NULL, 0);
+  INSERT INTO t4 VALUES(   0, NULL, 1);
+  INSERT INTO t4 VALUES(   0,    0, NULL);
+  INSERT INTO t4 VALUES(   0,    0, 0);
+  INSERT INTO t4 VALUES(   0,    0, 1);
+  INSERT INTO t4 VALUES(   0,    1, NULL);
+  INSERT INTO t4 VALUES(   0,    1, 0);
+  INSERT INTO t4 VALUES(   0,    1, 1);
+
+  INSERT INTO t4 VALUES(   1, NULL, NULL);
+  INSERT INTO t4 VALUES(   1, NULL, 0);
+  INSERT INTO t4 VALUES(   1, NULL, 1);
+  INSERT INTO t4 VALUES(   1,    0, NULL);
+  INSERT INTO t4 VALUES(   1,    0, 0);
+  INSERT INTO t4 VALUES(   1,    0, 1);
+  INSERT INTO t4 VALUES(   1,    1, NULL);
+  INSERT INTO t4 VALUES(   1,    1, 0);
+  INSERT INTO t4 VALUES(   1,    1, 1);
+}
+
+proc make_expr1 {cList vList op} {
+  return "([join $cList ,]) $op ([join $vList ,])"
+}
+
+proc make_expr3 {cList vList op} {
+  set n [llength $cList]
+
+  set aList [list]
+  foreach c [lrange $cList 0 end-1] v [lrange $vList 0 end-1] {
+    lappend aList "$c == $v"
+  }
+  lappend aList "[lindex $cList end] $op [lindex $vList end]"
+
+  return "([join $aList { AND }])"
+}
+
+proc make_expr2 {cList vList op} {
+  set ret ""
+
+  switch -- $op {
+    == - IS {
+      set aList [list]
+      foreach c $cList v $vList { lappend aList "($c $op $v)" }
+      set ret [join $aList " AND "]
+    }
+
+    < - > {
+      set oList [list]
+      for {set i 0} {$i < [llength $cList]} {incr i} {
+        lappend oList [make_expr3 [lrange $cList 0 $i] [lrange $vList 0 $i] $op]
+      }
+      set ret [join $oList " OR "]
+    }
+
+    <= - >= {
+      set o2 [string range $op 0 0]
+      set oList [list]
+      for {set i 0} {$i < [llength $cList]-1} {incr i} {
+        lappend oList [make_expr3 [lrange $cList 0 $i] [lrange $vList 0 $i] $o2]
+      }
+      lappend oList [make_expr3 $cList $vList $op]
+      set ret [join $oList " OR "]
+    }
+
+
+    default {
+      error "Unknown op: $op"
+    }
+  }
+
+  set ret
+}
+
+foreach {tn idx} {
+  IDX1 {}
+  IDX2 { CREATE INDEX i4 ON t4(a, b, c); }
+  IDX3 { CREATE INDEX i4 ON t4(a, b); }
+  IDX4 { CREATE INDEX i4 ON t4(a); }
+} {
+  execsql { DROP INDEX IF EXISTS i4 }
+  execsql $idx
+
+  foreach {tn2 vector} {
+    1 {0 0 0}
+    2 {1 1 1}
+    3 {0 0 NULL}
+    4 {0 NULL 0}
+    5 {NULL 0 0}
+    6 {1 1 NULL}
+    7 {1 NULL 1}
+    8 {NULL 1 1}
+  } {
+    foreach op { IS == < <= > >= } {
+      set e1 [make_expr1 {a b c} $vector $op]
+      set e2 [make_expr2 {a b c} $vector $op]
+
+      do_execsql_test 4.$tn.$tn2.$op \
+          "SELECT rowid FROM t4 WHERE $e2 ORDER BY +rowid" [
+          db eval "SELECT rowid FROM t4 WHERE $e1 ORDER BY +rowid"
+      ]
+    }
+  }
+}
+
+do_execsql_test 5.0 {
+  CREATE TABLE r1(a TEXT, iB TEXT);
+  CREATE TABLE r2(x TEXT, zY INTEGER);
+  CREATE INDEX r1ab ON r1(a, iB);
+
+  INSERT INTO r1 VALUES(35, 35);
+  INSERT INTO r2 VALUES(35, 36);
+  INSERT INTO r2 VALUES(35, 4);
+  INSERT INTO r2 VALUES(35, 35);
+} {}
+
+foreach {tn lhs rhs} {
+  1 {x +zY} {a iB}
+  2 {x  zY} {a iB}
+  3 {x  zY} {a +iB}
+  4 {+x  zY} {a iB}
+  5 {x  zY} {+a iB}
+} {
+  foreach op { IS == < <= > >= } {
+    set e1 [make_expr1 $lhs $rhs $op]
+    set e2 [make_expr2 $lhs $rhs $op]
+    do_execsql_test 5.$tn.$op \
+      "SELECT * FROM r1, r2 WHERE $e2 ORDER BY iB" [db eval \
+      "SELECT * FROM r1, r2 WHERE $e1 ORDER BY iB"
+    ]
+  }
+}
+
+
+finish_test
diff --git a/test/rowvalue3.test b/test/rowvalue3.test
new file mode 100644
index 0000000000000000000000000000000000000000..80ebeb7617ebe4f789f08c0d3fe48da1967125d3
--- /dev/null
+++ b/test/rowvalue3.test
@@ -0,0 +1,221 @@
+# 2016 June 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing "(...) IN (SELECT ...)" expressions
+# where the SELECT statement returns more than one column.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix rowvalue3
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b, c);
+  CREATE INDEX i1 ON t1(a, b);
+  INSERT INTO t1 VALUES(1, 2, 3);
+  INSERT INTO t1 VALUES(4, 5, 6);
+  INSERT INTO t1 VALUES(7, 8, 9);
+}
+
+foreach {tn sql res} {
+  1  "SELECT 1 WHERE (4, 5) IN (SELECT a, b FROM t1)"  1
+  2  "SELECT 1 WHERE (5, 5) IN (SELECT a, b FROM t1)"  {}
+  3  "SELECT 1 WHERE (5, 4) IN (SELECT a, b FROM t1)"  {}
+  4  "SELECT 1 WHERE (5, 4) IN (SELECT b, a FROM t1)"  1
+  5  "SELECT 1 WHERE (SELECT a, b FROM t1 WHERE c=6) IN (SELECT a, b FROM t1)" 1
+  6  "SELECT (5, 4) IN (SELECT a, b FROM t1)" 0
+  7  "SELECT 1 WHERE (5, 4) IN (SELECT +b, +a FROM t1)"  1
+  8  "SELECT (5, 4) IN (SELECT +b, +a FROM t1)"  1
+  9  "SELECT (1, 2) IN (SELECT rowid, b FROM t1)"  1
+  10 "SELECT 1 WHERE (1, 2) IN (SELECT rowid, b FROM t1)"  1
+  11 "SELECT 1 WHERE (1, NULL) IN (SELECT rowid, b FROM t1)"  {}
+  12 "SELECT 1 FROM t1 WHERE (a, b) = (SELECT +a, +b FROM t1)" {1}
+} {
+  do_execsql_test 1.$tn $sql $res
+}
+
+#-------------------------------------------------------------------------
+
+do_execsql_test 2.0 {
+  CREATE TABLE z1(x, y, z);
+  CREATE TABLE kk(a, b);
+
+  INSERT INTO z1 VALUES('a', 'b', 'c');
+  INSERT INTO z1 VALUES('d', 'e', 'f');
+  INSERT INTO z1 VALUES('g', 'h', 'i');
+
+  -- INSERT INTO kk VALUES('y', 'y');
+  INSERT INTO kk VALUES('d', 'e');
+  -- INSERT INTO kk VALUES('x', 'x');
+
+}
+
+foreach {tn idx} {
+  1 { }
+  2 { CREATE INDEX z1idx ON z1(x, y) }
+  3 { CREATE UNIQUE INDEX z1idx ON z1(x, y) }
+  4 { CREATE INDEX z1idx ON kk(a, b) }
+} {
+  execsql "DROP INDEX IF EXISTS z1idx"
+  execsql $idx
+
+  do_execsql_test 2.$tn.1 {
+    SELECT * FROM z1 WHERE x IN (SELECT a FROM kk)
+  } {d e f}
+
+  do_execsql_test 2.$tn.2 {
+    SELECT * FROM z1 WHERE (x,y) IN (SELECT a, b FROM kk)
+  } {d e f}
+
+  do_execsql_test 2.$tn.3 {
+    SELECT * FROM z1 WHERE (x, +y) IN (SELECT a, b FROM kk)
+  } {d e f}
+  
+  do_execsql_test 2.$tn.4 {
+    SELECT * FROM z1 WHERE (x, +y) IN (SELECT a, b||'x' FROM kk)
+  } {}
+
+  do_execsql_test 2.$tn.5 {
+    SELECT * FROM z1 WHERE (+x, y) IN (SELECT a, b FROM kk)
+  } {d e f}
+}
+
+#-------------------------------------------------------------------------
+#
+
+do_execsql_test 3.0 {
+  CREATE TABLE c1(a, b, c, d);
+  INSERT INTO c1(rowid, a, b) VALUES(1,   NULL, 1);
+  INSERT INTO c1(rowid, a, b) VALUES(2,   2, NULL);
+  INSERT INTO c1(rowid, a, b) VALUES(3,   2, 2);
+  INSERT INTO c1(rowid, a, b) VALUES(4,   3, 3);
+
+  INSERT INTO c1(rowid, a, b, c, d) VALUES(101, 'a', 'b', 1, 1);
+  INSERT INTO c1(rowid, a, b, c, d) VALUES(102, 'a', 'b', 1, 2);
+  INSERT INTO c1(rowid, a, b, c, d) VALUES(103, 'a', 'b', 1, 3);
+  INSERT INTO c1(rowid, a, b, c, d) VALUES(104, 'a', 'b', 2, 1);
+  INSERT INTO c1(rowid, a, b, c, d) VALUES(105, 'a', 'b', 2, 2);
+  INSERT INTO c1(rowid, a, b, c, d) VALUES(106, 'a', 'b', 2, 3);
+  INSERT INTO c1(rowid, a, b, c, d) VALUES(107, 'a', 'b', 3, 1);
+  INSERT INTO c1(rowid, a, b, c, d) VALUES(108, 'a', 'b', 3, 2);
+  INSERT INTO c1(rowid, a, b, c, d) VALUES(109, 'a', 'b', 3, 3);
+}
+
+
+foreach {tn idx} {
+  1 { }
+  2 { CREATE INDEX c1ab ON c1(a, b); }
+  3 { CREATE INDEX c1ba ON c1(b, a); }
+
+  4 { CREATE INDEX c1cd ON c1(c, d); }
+  5 { CREATE INDEX c1dc ON c1(d, c); }
+} {
+  drop_all_indexes
+
+  foreach {tn2 sql res} {
+    1 "SELECT (1, 2) IN (SELECT a, b FROM c1)" {0}
+    2 "SELECT (1, 1) IN (SELECT a, b FROM c1)" {{}}
+    3 "SELECT (2, 1) IN (SELECT a, b FROM c1)" {{}}
+    4 "SELECT (2, 2) IN (SELECT a, b FROM c1)" {1}
+    5 "SELECT c, d FROM c1 WHERE (c, d) IN (SELECT d, c FROM c1)"
+      { 1 1 1 2 1 3   2 1 2 2 2 3   3 1 3 2 3 3 }
+
+    6 "SELECT c, d FROM c1 WHERE (c,d) IN (SELECT d, c FROM c1) ORDER BY c DESC"
+      { 3 1 3 2 3 3   2 1 2 2 2 3   1 1 1 2 1 3 }
+
+    7 {
+        SELECT c, d FROM c1 WHERE (c,d) IN (SELECT d, c FROM c1) 
+        ORDER BY c DESC, d ASC
+      } { 3 1 3 2 3 3   2 1 2 2 2 3   1 1 1 2 1 3 }
+
+    8 {
+        SELECT c, d FROM c1 WHERE (c,d) IN (SELECT d, c FROM c1) 
+        ORDER BY c ASC, d DESC
+      } { 1 3 1 2 1 1   2 3 2 2 2 1   3 3 3 2 3 1 }
+
+    9 {
+        SELECT c, d FROM c1 WHERE (c,d) IN (SELECT d, c FROM c1) 
+        ORDER BY c ASC, d ASC
+      } { 1 1 1 2 1 3   2 1 2 2 2 3   3 1 3 2 3 3 }
+    10 {
+        SELECT c, d FROM c1 WHERE (c,d) IN (SELECT d, c FROM c1) 
+        ORDER BY c DESC, d DESC
+      } { 3 3 3 2 3 1   2 3 2 2 2 1   1 3 1 2 1 1 }
+
+  } {
+    do_execsql_test 3.$tn.$tn2 $sql $res
+  }
+}
+
+#-------------------------------------------------------------------------
+
+do_execsql_test 4.0 {
+  CREATE TABLE hh(a, b, c);
+
+  INSERT INTO hh VALUES('a', 'a', 1);
+  INSERT INTO hh VALUES('a', 'b', 2);
+  INSERT INTO hh VALUES('b', 'a', 3);
+  INSERT INTO hh VALUES('b', 'b', 4);
+
+  CREATE TABLE k1(x, y);
+  INSERT INTO k1 VALUES('a', 'a');
+  INSERT INTO k1 VALUES('b', 'b');
+  INSERT INTO k1 VALUES('a', 'b');
+  INSERT INTO k1 VALUES('b', 'a');
+}
+
+foreach {tn idx} {
+  1 { }
+  2 { CREATE INDEX h1 ON hh(a, b); }
+  3 { CREATE UNIQUE INDEX k1idx ON k1(x, y) }
+  4 { CREATE UNIQUE INDEX k1idx ON k1(x, y DESC) }
+  5 { 
+    CREATE INDEX h1 ON hh(a, b);
+    CREATE UNIQUE INDEX k1idx ON k1(x, y); 
+  }
+  6 { 
+    CREATE INDEX h1 ON hh(a, b);
+    CREATE UNIQUE INDEX k1idx ON k1(x, y DESC); 
+  }
+} {
+  drop_all_indexes
+  execsql $idx
+  foreach {tn2 orderby res} {
+    1 "a ASC, b ASC"  {1 2 3 4}
+    2 "a ASC, b DESC" {2 1 4 3}
+    3 "a DESC, b ASC" {3 4 1 2}
+    4 "a DESC, b DESC" {4 3 2 1}
+  } {
+    do_execsql_test 4.$tn.$tn2 "
+      SELECT c FROM hh WHERE (a, b) in (SELECT x, y FROM k1) ORDER BY $orderby
+    " $res
+  }
+}
+
+#-------------------------------------------------------------------------
+
+# 2016-11-17.  Query flattening in a vector SELECT on the RHS of an IN
+# operator.  Ticket https://www.sqlite.org/src/info/da7841375186386c
+#
+do_execsql_test 5.0 {
+  DROP TABLE IF EXISTS t1;
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE T1(a TEXT);
+  INSERT INTO T1(a) VALUES ('aaa');
+  CREATE TABLE T2(a TEXT PRIMARY KEY,n INT);
+  INSERT INTO T2(a, n) VALUES('aaa',0);
+  SELECT * FROM T2
+   WHERE (a,n) IN (SELECT T1.a, V.n
+                     FROM T1, (SELECT * FROM (SELECT 0 n) T3) V);
+} {aaa 0}
+
+
+finish_test
diff --git a/test/rowvalue4.test b/test/rowvalue4.test
new file mode 100644
index 0000000000000000000000000000000000000000..1ef5fc2920deb3fb18c12664e9bb3da81062a682
--- /dev/null
+++ b/test/rowvalue4.test
@@ -0,0 +1,307 @@
+# 2016 July 29
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is syntax errors involving row-value constructors
+# and sub-selects that return multiple arguments.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix rowvalue4
+
+#-------------------------------------------------------------------------
+# Test some error conditions:
+# 
+#   * row values used where they are not supported,
+#   * row values or sub-selects that contain/return the wrong number
+#     of elements.
+#
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b, c);
+  CREATE INDEX t1bac ON t1(b, a, c);
+}
+
+foreach {tn e} {
+  1 "(1, 2, 3)"
+  2 "1 + (1, 2)"
+  3 "(1,2,3) == (1, 2)"
+} {
+  do_catchsql_test 1.$tn "SELECT $e" {1 {row value misused}}
+}
+
+foreach {tn s error} {
+  1 "SELECT * FROM t1 WHERE a = (1, 2)"       {row value misused}
+  2 "SELECT * FROM t1 WHERE b = (1, 2)"       {row value misused}
+  3 "SELECT * FROM t1 WHERE NOT (b = (1, 2))" {row value misused}
+  4 "SELECT * FROM t1 LIMIT (1, 2)"           {row value misused}
+  5 "SELECT (a, b) IN (SELECT * FROM t1) FROM t1" 
+                             {sub-select returns 3 columns - expected 2}
+
+  6 "SELECT * FROM t1 WHERE (a, b) IN (SELECT * FROM t1)" 
+                             {sub-select returns 3 columns - expected 2}
+  7 "SELECT * FROM t1 WHERE (c, c) <= 1" {row value misused}
+  8 "SELECT * FROM t1 WHERE (b, b) <= 1" {row value misused}
+} {
+  do_catchsql_test 2.$tn "$s" [list 1 $error]
+}
+
+#-------------------------------------------------------------------------
+do_execsql_test 2.0 {
+  CREATE TABLE t2(a, b, c, d);
+  INSERT INTO t2 VALUES(1, 1, 1,   1);
+  INSERT INTO t2 VALUES(1, 1, 2,   2);
+  INSERT INTO t2 VALUES(1, 1, 3,   3);
+  INSERT INTO t2 VALUES(1, 2, 1,   4);
+  INSERT INTO t2 VALUES(1, 2, 2,   5);
+  INSERT INTO t2 VALUES(1, 2, 3,   6);
+  INSERT INTO t2 VALUES(1, 3, 1,   7);
+  INSERT INTO t2 VALUES(1, 3, 2,   8);
+  INSERT INTO t2 VALUES(1, 3, 3,   9);
+
+  INSERT INTO t2 VALUES(2, 1, 1,   10);
+  INSERT INTO t2 VALUES(2, 1, 2,   11);
+  INSERT INTO t2 VALUES(2, 1, 3,   12);
+  INSERT INTO t2 VALUES(2, 2, 1,   13);
+  INSERT INTO t2 VALUES(2, 2, 2,   14);
+  INSERT INTO t2 VALUES(2, 2, 3,   15);
+  INSERT INTO t2 VALUES(2, 3, 1,   16);
+  INSERT INTO t2 VALUES(2, 3, 2,   17);
+  INSERT INTO t2 VALUES(2, 3, 3,   18);
+
+  INSERT INTO t2 VALUES(3, 1, 1,   19);
+  INSERT INTO t2 VALUES(3, 1, 2,   20);
+  INSERT INTO t2 VALUES(3, 1, 3,   21);
+  INSERT INTO t2 VALUES(3, 2, 1,   22);
+  INSERT INTO t2 VALUES(3, 2, 2,   23);
+  INSERT INTO t2 VALUES(3, 2, 3,   24);
+  INSERT INTO t2 VALUES(3, 3, 1,   25);
+  INSERT INTO t2 VALUES(3, 3, 2,   26);
+  INSERT INTO t2 VALUES(3, 3, 3,   27);
+}
+
+foreach {nm idx} {
+  idx1 {}
+  idx2 { CREATE INDEX t2abc ON t2(a, b, c); }
+  idx3 { CREATE INDEX t2abc ON t2(a, b DESC, c); }
+  idx4 { CREATE INDEX t2abc ON t2(a DESC, b DESC, c DESC); }
+  idx5 { CREATE INDEX t2abc ON t2(a ASC, b ASC, c ASC); }
+  idx6 { CREATE INDEX t2abc ON t2(a DESC, b, c); }
+  idx7 { CREATE INDEX t2abc ON t2(a DESC, b DESC) }
+  idx8 { CREATE INDEX t2abc ON t2(c, b, a); }
+  idx9 { CREATE INDEX t2d ON t2(d); }
+  idx10 { CREATE INDEX t2abc ON t2(a DESC, b, c DESC); }
+} {
+  drop_all_indexes
+  execsql $idx
+
+  foreach {tn where res} {
+    1 "(a, b, c) < (2, 2, 2)"  {1 2 3 4 5 6 7 8 9 10 11 12 13}
+    2 "(a, b, c) <= (2, 2, 2)" {1 2 3 4 5 6 7 8 9 10 11 12 13 14}
+    3 "(a, b, c) > (2, 2, 2)"  {15 16 17 18 19 20 21 22 23 24 25 26 27}
+    4 "(a, b, c) >= (2, 2, 2)" {14 15 16 17 18 19 20 21 22 23 24 25 26 27}
+    5 "(a, b, c) >= (2, 2, NULL)" {16 17 18 19 20 21 22 23 24 25 26 27}
+    6 "(a, b, c) <= (2, 2, NULL)" {1 2 3 4 5 6 7 8 9 10 11 12}
+    7 "(a, b, c) >= (2, NULL, NULL)" {19 20 21 22 23 24 25 26 27}
+    8 "(a, b, c) <= (2, NULL, NULL)" {1 2 3 4 5 6 7 8 9}
+
+    9 "(a, b, c) < (SELECT a, b, c FROM t2 WHERE d=14)"  
+      {1 2 3 4 5 6 7 8 9 10 11 12 13}
+
+    10 "(a, b, c) = (SELECT a, b, c FROM t2 WHERE d=14)" 14
+
+    11 "a = 2 AND (b, c) > (2, 2)" {15 16 17 18}
+    12 "a = 2 AND (b, c) < (3, 3) AND (b, c) > (1, 1)" {11 12 13 14 15 16 17}
+  } {
+    set result [db eval "SELECT d FROM t2 WHERE $where"]
+    do_test 2.1.$nm.$tn { lsort -integer $result } $res
+  }
+
+  foreach {tn e res} {
+    1 "(2, 1) IN (SELECT a, b FROM t2)" 1
+    2 "(2, 1) IN (SELECT a, b FROM t2 ORDER BY d)" 1
+    3 "(2, 1) IN (SELECT a, b FROM t2 ORDER BY d LIMIT 9)" 0
+    4 "(2, 1) IN (SELECT a, b FROM t2 ORDER BY d LIMIT 10)" 1
+
+    5 "(3, 3) = (SELECT a, b FROM t2 ORDER BY d DESC LIMIT 1)" 1
+    6 "(3, 3) = (SELECT a, b FROM t2 ORDER BY d ASC LIMIT 1)" 0
+    7 "(1, NULL) = (SELECT a, b FROM t2 ORDER BY d ASC LIMIT 1)" {{}}
+
+    8 "(3, 1) = (SELECT b, c FROM t2 ORDER BY d DESC LIMIT 1 OFFSET 2)" 1
+    9 "(3, 1) = (SELECT b, c FROM t2 ORDER BY d ASC LIMIT 1 OFFSET 2)" 0
+    10 "(1, NULL) = (SELECT b, c FROM t2 ORDER BY d ASC LIMIT 1 OFFSET 2)" {{}}
+
+    11 "(3, 3) = (SELECT max(a), max(b) FROM t2)" 1
+    12 "(3, 1) = (SELECT max(a), min(b) FROM t2)" 1
+    13 "(NULL, NULL) = (SELECT max(a), min(b) FROM t2)" {{}}
+
+    14 "(2, 1) IN (SELECT a, b FROM t2 ORDER BY d LIMIT 5 OFFSET 11)" 1
+    15 "(2, 1) IN (SELECT a, b FROM t2 ORDER BY d LIMIT 5 OFFSET 12)" 0
+  } {
+    do_execsql_test 2.2.$nm.$tn "SELECT $e" $res
+  }
+}
+
+ifcapable stat4 {
+  do_execsql_test 3.0 {
+    CREATE TABLE c1(a, b, c, d);
+    INSERT INTO c1(a, b) VALUES(1, 'a');
+    INSERT INTO c1(a, b) VALUES(1, 'b');
+    INSERT INTO c1(a, b) VALUES(1, 'c');
+    INSERT INTO c1(a, b) VALUES(1, 'd');
+    INSERT INTO c1(a, b) VALUES(1, 'e');
+    INSERT INTO c1(a, b) VALUES(1, 'f');
+    INSERT INTO c1(a, b) VALUES(1, 'g');
+    INSERT INTO c1(a, b) VALUES(1, 'h');
+    INSERT INTO c1(a, b) VALUES(1, 'i');
+    INSERT INTO c1(a, b) VALUES(1, 'j');
+    INSERT INTO c1(a, b) VALUES(1, 'k');
+    INSERT INTO c1(a, b) VALUES(1, 'l');
+    INSERT INTO c1(a, b) VALUES(1, 'm');
+    INSERT INTO c1(a, b) VALUES(1, 'n');
+    INSERT INTO c1(a, b) VALUES(1, 'o');
+    INSERT INTO c1(a, b) VALUES(1, 'p');
+    INSERT INTO c1(a, b) VALUES(2, 'a');
+    INSERT INTO c1(a, b) VALUES(2, 'b');
+    INSERT INTO c1(a, b) VALUES(2, 'c');
+    INSERT INTO c1(a, b) VALUES(2, 'd');
+    INSERT INTO c1(a, b) VALUES(2, 'e');
+    INSERT INTO c1(a, b) VALUES(2, 'f');
+    INSERT INTO c1(a, b) VALUES(2, 'g');
+    INSERT INTO c1(a, b) VALUES(2, 'h');
+
+    INSERT INTO c1(c, d) SELECT a, b FROM c1;
+
+    CREATE INDEX c1ab ON c1(a, b);
+    CREATE INDEX c1cd ON c1(c, d);
+    ANALYZE;
+  }
+
+  do_eqp_test 3.1.1 { SELECT * FROM c1 WHERE a=1 AND c=2 } \
+     {SEARCH c1 USING INDEX c1cd (c=?)}
+
+  do_eqp_test 3.1.2 { SELECT * FROM c1 WHERE a=1 AND b>'d' AND c=2 } \
+     {SEARCH c1 USING INDEX c1cd (c=?)}
+
+  do_eqp_test 3.1.3 { SELECT * FROM c1 WHERE a=1 AND b>'l' AND c=2 } \
+     {SEARCH c1 USING INDEX c1ab (a=? AND b>?)}
+
+  do_eqp_test 3.2.1 { SELECT * FROM c1 WHERE a=1 AND c>1 } \
+     {SEARCH c1 USING INDEX c1cd (c>?)}
+
+  do_eqp_test 3.2.2 { SELECT * FROM c1 WHERE a=1 AND c>0 } \
+     {SEARCH c1 USING INDEX c1ab (a=?)}
+
+  do_eqp_test 3.2.3 { SELECT * FROM c1 WHERE a=1 AND c>=1 } \
+     {SEARCH c1 USING INDEX c1ab (a=?)}
+
+  do_eqp_test 3.2.4 { SELECT * FROM c1 WHERE a=1 AND (c, d)>(1, 'c') } \
+     {SEARCH c1 USING INDEX c1ab (a=?)}
+
+  do_eqp_test 3.2.5 { SELECT * FROM c1 WHERE a=1 AND (c, d)>(1, 'o') } \
+     {SEARCH c1 USING INDEX c1cd ((c,d)>(?,?))}
+
+  do_eqp_test 3.2.6 { SELECT * FROM c1 WHERE a=1 AND (c, +b)>(1, 'c') } \
+     {SEARCH c1 USING INDEX c1ab (a=?)}
+
+}
+
+#------------------------------------------------------------------------
+
+do_execsql_test 5.0 {
+  CREATE TABLE d1(x, y);
+  CREATE TABLE d2(a, b, c);
+  CREATE INDEX d2ab ON d2(a, b);
+  CREATE INDEX d2c ON d2(c);
+
+  WITH i(i) AS (
+    VALUES(1) UNION ALL SELECT i+1 FROM i WHERE i<1000
+  )
+  INSERT INTO d2 SELECT i/100, i%100, i/100 FROM i;
+  ANALYZE;
+}
+
+do_eqp_test 5.1 {
+  SELECT * FROM d2 WHERE 
+    (a, b) IN (SELECT x, y FROM d1) AND
+    (c) IN (SELECT y FROM d1)
+} {
+  QUERY PLAN
+  |--SEARCH d2 USING INDEX d2ab (a=? AND b=?)
+  |--LIST SUBQUERY xxxxxx
+  |  |--SCAN d1
+  |  `--CREATE BLOOM FILTER
+  `--LIST SUBQUERY xxxxxx
+     |--SCAN d1
+     `--CREATE BLOOM FILTER
+}
+
+do_execsql_test 6.0 {
+  CREATE TABLE e1(a, b, c, d, e);
+  CREATE INDEX e1ab ON e1(a, b);
+  CREATE INDEX e1cde ON e1(c, d, e);
+}
+
+do_eqp_test 6.1 {
+  SELECT * FROM e1 WHERE (a, b) > (?, ?)
+} {SEARCH e1 USING INDEX e1ab ((a,b)>(?,?))}
+
+do_eqp_test 6.2 {
+  SELECT * FROM e1 WHERE (a, b) < (?, ?)
+} {SEARCH e1 USING INDEX e1ab ((a,b)<(?,?))}
+
+do_eqp_test 6.3 {
+  SELECT * FROM e1 WHERE c = ? AND (d, e) > (?, ?)
+} {SEARCH e1 USING INDEX e1cde (c=? AND (d,e)>(?,?))}
+
+do_eqp_test 6.4 {
+  SELECT * FROM e1 WHERE c = ? AND (d, e) < (?, ?)
+} {SEARCH e1 USING INDEX e1cde (c=? AND (d,e)<(?,?))}
+
+do_eqp_test 6.5 {
+  SELECT * FROM e1 WHERE (d, e) BETWEEN (?, ?) AND (?, ?) AND c = ?
+} {SEARCH e1 USING INDEX e1cde (c=? AND (d,e)>(?,?) AND (d,e)<(?,?))}
+
+#-------------------------------------------------------------------------
+
+do_execsql_test 7.1 {
+  CREATE TABLE f1(a, b, c);
+  CREATE INDEX f1ab ON f1(a, b);
+}
+
+do_catchsql_test 7.2 {
+  SELECT (a COLLATE nocase, b) IN (SELECT a, b FROM f1) FROM f1;
+} {0 {}}
+
+do_catchsql_test 7.3 {
+  SELECT (a COLLATE nose, b) IN (SELECT a, b FROM f1) FROM f1;
+} {1 {no such collation sequence: nose}}
+
+do_catchsql_test 7.4 {
+  SELECT * FROM f1 WHERE (?, ? COLLATE nose) > (a, b);
+} {1 {no such collation sequence: nose}}
+
+#-------------------------------------------------------------------------
+drop_all_tables
+do_execsql_test 8.1 {
+  CREATE TABLE c1(x, y);
+  CREATE TABLE c2(a, b, c);
+  CREATE INDEX c2ab ON c2(a, b);
+  CREATE INDEX c2c ON c2(c);
+
+  CREATE TABLE c3(d);
+}
+do_catchsql_test 8.2 {
+  SELECT * FROM c2 CROSS JOIN c3 WHERE 
+    ( (a, b) == (SELECT x, y FROM c1) AND c3.d = c ) OR
+    ( c == (SELECT x, y FROM c1) AND c3.d = c )
+} {1 {row value misused}}
+
+finish_test
diff --git a/test/rowvalue5.test b/test/rowvalue5.test
new file mode 100644
index 0000000000000000000000000000000000000000..b91dfa49ac7995cc46188ad6da2f6d55c22f076c
--- /dev/null
+++ b/test/rowvalue5.test
@@ -0,0 +1,117 @@
+# 2016 July 29
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is syntax errors involving row-values and
+# virtual tables.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix rowvalue5
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+proc vtab_command {method args} {
+  switch -- $method {
+    xConnect {
+      return "CREATE TABLE t1(a, b, c, d, expr)"
+    }
+
+    xBestIndex {
+      set COL(0) a
+      set COL(1) b
+      set COL(2) c
+      set COL(3) d
+      set COL(4) expr
+
+      set OP(eq) =
+      set OP(ne) !=
+      set OP(gt) >
+      set OP(le) <=
+      set OP(lt) <
+      set OP(ge) >=
+      set OP(match) MATCH
+      set OP(like) LIKE
+      set OP(glob) GLOB
+      set OP(regexp) REGEXP
+
+      set hdl [lindex $args 0]
+      set clist [$hdl constraints]
+
+      set ret [list]
+      set elist [list]
+      set i 0
+      foreach c $clist {
+        array set C $c
+        if {$C(usable)} {
+          lappend ret omit $i
+          lappend elist "$COL($C(column)) $OP($C(op)) %$i%"
+        }
+        incr i
+      }
+
+      lappend ret idxstr [join $elist " AND "]
+      #puts "xBestIndex: $ret"
+      return $ret
+    }
+
+    xFilter {
+      foreach {idxnum idxstr arglist} $args {}
+      set i 0
+      set ee $idxstr
+      foreach a $arglist {
+        if {[string is double $a]==0} {
+          set a "'[string map {' ''} $a]'"
+        }
+        set ee [string map [list "%$i%" $a] $ee]
+        incr i
+      }
+      set ee [string map [list "'" "''"] $ee]
+
+      set ret [list sql "SELECT 1, 'a', 'b', 'c', 'd', '$ee'"]
+      #puts "xFilter: $ret"
+      return $ret
+    }
+  }
+
+  return {}
+}
+
+register_tcl_module db
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE x1 USING tcl(vtab_command);
+} {}
+
+
+foreach {tn where res} {
+  1 "1"                              {{}}
+  2 "a=1"                            {{a = 1}}
+  3 "a=1 AND 4 = b"                  {{a = 1 AND b = 4}}
+  4 "c>'hello'"                      {{c > 'hello'}}
+  5 "c<='hel''lo'"                   {{c <= 'hel''lo'}}
+  6 "(a, b) = (SELECT 9, 10)"        {{a = 9 AND b = 10}}
+  7 "(+a, b) = (SELECT 'a', 'b')"    {{b = 'b'}}
+  8 "(a, +b) = (SELECT 'a', 'b')"    {{a = 'a'}}
+  11 "(+a, b) IN (SELECT 'a', 'b')"  {{b = 'b'}}
+  12 "(a, +b) IN (SELECT 'a', 'b')"  {{a = 'a'}}
+
+  13 "(a, b) < ('d', 'e')"           {{a <= 'd'}}
+  14 "(a, b) < ('a', 'c')"           {{a <= 'a'}}
+  15 "(a, b) <= ('a', 'b')"          {{a <= 'a'}}
+  16 "(a, b) < ('a', 'b')"           {}
+} {
+  do_execsql_test 1.$tn "SELECT expr FROM x1 WHERE $where" $res
+}
+
+finish_test
diff --git a/test/rowvalue6.test b/test/rowvalue6.test
new file mode 100644
index 0000000000000000000000000000000000000000..d90e61c81125915222e667c1d6b1db8fcee45ade
--- /dev/null
+++ b/test/rowvalue6.test
@@ -0,0 +1,36 @@
+# 2016-08-18
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# The focus of this file is handling of NULL values in row-value IN
+# expressions.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix rowvalue6
+
+do_execsql_test 1.1 {
+  CREATE TABLE t1(a,b,c);
+  CREATE INDEX t1x1 ON t1(a,b);
+  INSERT INTO t1 VALUES(1,NULL,200);
+
+  CREATE TABLE t2(x,y,z);
+  INSERT INTO t2 VALUES(1,NULL,55);
+
+  SELECT c FROM t1 WHERE (a,b) IN (SELECT x,y FROM t2 WHERE z==55);
+} {}
+do_execsql_test 1.2 {
+  INSERT INTO t1 VALUES(2,3,400);
+  INSERT INTO t2 VALUES(2,3,55);  
+
+  SELECT c FROM t1 WHERE (a,b) IN (SELECT x,y FROM t2 WHERE z==55);
+} {400}
+
+finish_test
diff --git a/test/rowvalue7.test b/test/rowvalue7.test
new file mode 100644
index 0000000000000000000000000000000000000000..03591afaf40e16c1194c49843e349689fc51747e
--- /dev/null
+++ b/test/rowvalue7.test
@@ -0,0 +1,68 @@
+# 2016-08-18
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# The focus of this file is vector assignments in the SET clause of
+# an UPDATE statement.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix rowvalue7
+
+do_execsql_test 1.1 {
+  CREATE TABLE t1(a,b,c,d);
+  CREATE INDEX t1x ON t1(a,b);
+  INSERT INTO t1(a,b,c,d) VALUES(1,2,0,0),(3,4,0,0),(5,6,0,0);
+  CREATE TABLE t2(w,x,y,z);
+  CREATE INDEX t2x ON t2(w,x);
+  INSERT INTO t2(w,x,y,z) VALUES(1,2,11,22),(8,9,88,99),(3,5,33,55),(5,6,55,66);
+
+  SELECT *,'|' FROM t1 ORDER BY a;
+} {1 2 0 0 | 3 4 0 0 | 5 6 0 0 |}
+
+do_execsql_test 1.2 {
+  UPDATE t1 SET (c,d) = (SELECT y,z FROM t2 WHERE (w,x)=(a,b));
+  SELECT *,'|' FROM t1 ORDER BY a;
+} {1 2 11 22 | 3 4 {} {} | 5 6 55 66 |}
+
+do_execsql_test 1.3 {
+  UPDATE t1 SET (c,d) = (SELECT y,z FROM t2 WHERE w=a);
+  SELECT *,'|' FROM t1 ORDER BY a;
+} {1 2 11 22 | 3 4 33 55 | 5 6 55 66 |}
+
+do_execsql_test 1.4 {
+  UPDATE t1 SET (c) = 99 WHERE a=3;
+  SELECT *,'|' FROM t1 ORDER BY a;
+} {1 2 11 22 | 3 4 99 55 | 5 6 55 66 |}
+
+do_execsql_test 1.5 {
+  UPDATE t1 SET b = 8, (c,d) = (SELECT 123,456) WHERE a=3;
+  SELECT *,'|' FROM t1 ORDER BY a;
+} {1 2 11 22 | 3 8 123 456 | 5 6 55 66 |}
+
+do_catchsql_test 2.1 {
+  UPDATE t1 SET (c,d) = (SELECT x,y,z FROM t2 WHERE w=a);
+} {1 {2 columns assigned 3 values}}
+
+do_catchsql_test 2.2 {
+  UPDATE t1 SET (b,c,d) = (SELECT x,y FROM t2 WHERE w=a);
+} {1 {3 columns assigned 2 values}}
+
+# 2019-08-26
+# ticket https://www.sqlite.org/src/info/78acc9d40f0786e8
+#
+do_catchsql_test 3.0 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a,b);
+  INSERT INTO t1 VALUES(1,2);
+  UPDATE t1 SET (a,a,a,b)=(SELECT 99,100);
+} {1 {4 columns assigned 2 values}}
+
+finish_test
diff --git a/test/rowvalue8.test b/test/rowvalue8.test
new file mode 100644
index 0000000000000000000000000000000000000000..432dad1278bfefd321b6574bda15344ae3aae7c1
--- /dev/null
+++ b/test/rowvalue8.test
@@ -0,0 +1,59 @@
+# 2016-08-22
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# Use of row values in CASE statements.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix rowvalue8
+
+do_execsql_test 1.1 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY,b,c,d);
+  INSERT INTO t1(a,b,c,d) VALUES
+     (1,1,2,3),
+     (2,2,3,4),
+     (3,1,2,4),
+     (4,2,3,5),
+     (5,3,4,6),
+     (6,4,5,9);
+  SELECT a, CASE (b,c) WHEN (1,2) THEN 'aleph'
+                       WHEN (2,3) THEN 'bet'
+                       WHEN (3,4) THEN 'gimel'
+                       ELSE '-' END,
+         '|'
+    FROM t1
+   ORDER BY a;
+} {1 aleph | 2 bet | 3 aleph | 4 bet | 5 gimel | 6 - |}
+do_execsql_test 1.2 {
+  SELECT a, CASE (b,c,d) WHEN (1,2,3) THEN 'aleph'
+                         WHEN (2,3,4) THEN 'bet'
+                         WHEN (3,4,6) THEN 'gimel'
+                         ELSE '-' END,
+         '|'
+    FROM t1
+   ORDER BY a;
+} {1 aleph | 2 bet | 3 - | 4 - | 5 gimel | 6 - |}
+
+do_execsql_test 2.1 {
+  CREATE TABLE t2(x INTEGER PRIMARY KEY, y);
+  INSERT INTO t2(x,y) VALUES(1,6),(2,5),(3,4),(4,3),(5,2),(6,1);
+  SELECT x, CASE (SELECT b,c FROM t1 WHERE a=y)
+            WHEN (1,2) THEN 'aleph'
+            WHEN (2,3) THEN 'bet'
+            WHEN (3,4) THEN 'gimel'
+            ELSE '-' END,
+         '|'
+    FROM t2
+   ORDER BY +x;
+} {1 - | 2 gimel | 3 bet | 4 aleph | 5 bet | 6 aleph |}
+
+
+finish_test
diff --git a/test/rowvalue9.test b/test/rowvalue9.test
new file mode 100644
index 0000000000000000000000000000000000000000..baa13f4f94b25664091ae781237c60dc5b48fe43
--- /dev/null
+++ b/test/rowvalue9.test
@@ -0,0 +1,352 @@
+# 2016 September 3
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing SQL statements that use row value
+# constructors.
+#
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix rowvalue9
+
+# Tests:
+#
+#  1.*: Test that affinities are handled correctly by various row-value
+#       operations without indexes.
+#
+#  2.*: Test an affinity bug that came up during testing.
+#
+#  3.*: Test a row-value version of the bug tested by 2.*.
+#
+#  4.*: Test that affinities are handled correctly by various row-value
+#       operations with assorted indexes.
+#
+
+do_execsql_test 1.0.1 {
+  CREATE TABLE a1(c, b INTEGER, a TEXT, PRIMARY KEY(a, b));
+ 
+  INSERT INTO a1 (rowid, c, b, a) VALUES(3,  '0x03', 1, 1);
+  INSERT INTO a1 (rowid, c, b, a) VALUES(14, '0x0E', 2, 2);
+  INSERT INTO a1 (rowid, c, b, a) VALUES(15, '0x0F', 3, 3);
+  INSERT INTO a1 (rowid, c, b, a) VALUES(92, '0x5C', 4, 4);
+
+  CREATE TABLE a2(x BLOB, y BLOB);
+  INSERT INTO a2(x, y) VALUES(1, 1);
+  INSERT INTO a2(x, y) VALUES(2, '2');
+  INSERT INTO a2(x, y) VALUES('3', 3);
+  INSERT INTO a2(x, y) VALUES('4', '4');
+}
+
+do_execsql_test 1.0.2 { 
+  SELECT x, typeof(x), y, typeof(y) FROM a2 ORDER BY rowid
+} {
+  1 integer 1 integer 
+  2 integer 2 text 
+  3 text    3 integer 
+  4 text    4 text
+}
+
+do_execsql_test 1.1.1 {
+  SELECT (SELECT rowid FROM a1 WHERE a=x AND b=y) FROM a2
+} {{} {} 15 92}
+do_execsql_test 1.1.2 {
+  SELECT (SELECT rowid FROM a1 WHERE (a, b) = (x, y)) FROM a2
+} {{} {} 15 92}
+
+do_execsql_test 1.2.3 {
+  SELECT a1.rowid FROM a1, a2 WHERE a=x AND b=y;
+} {15 92}
+do_execsql_test 1.2.4 {
+  SELECT a1.rowid FROM a1, a2 WHERE (a, b) = (x, y)
+} {15 92}
+
+
+do_execsql_test 1.3.1 {
+  SELECT a1.rowid FROM a1, a2 WHERE coalesce(NULL,x)=a AND coalesce(NULL,y)=b
+} {3 14 15 92}
+do_execsql_test 1.3.2 {
+  SELECT a1.rowid FROM a1, a2 
+  WHERE (coalesce(NULL,x), coalesce(NULL,y)) = (a, b)
+} {3 14 15 92}
+
+do_execsql_test 1.4.1 {
+  SELECT a1.rowid FROM a1, a2 WHERE +x=a AND +y=b
+} {3 14 15 92}
+do_execsql_test 1.4.2 {
+  SELECT a1.rowid FROM a1, a2 WHERE (+x, +y) = (a, b)
+} {3 14 15 92}
+
+do_execsql_test 1.5.1 {
+  SELECT (SELECT rowid FROM a1 WHERE a=+x AND b=+y) FROM a2
+} {3 14 15 92}
+do_execsql_test 1.5.2 {
+  SELECT (SELECT rowid FROM a1 WHERE (a, b) = (+x, +y)) FROM a2
+} {3 14 15 92}
+do_execsql_test 1.5.3 {
+  SELECT (SELECT rowid FROM a1 WHERE (+x, +y) = (a, b)) FROM a2
+} {3 14 15 92}
+
+do_execsql_test 1.6.1 {
+  SELECT a1.rowid FROM a1 WHERE (a, b) IN (SELECT x, y FROM a2)
+} {15 92}
+do_execsql_test 1.6.2 {
+  SELECT a1.rowid FROM a1, a2 WHERE EXISTS (
+    SELECT 1 FROM a1 WHERE a=x AND b=y
+  )
+} {3 14 15 92 3 14 15 92}
+
+# Test that [199df416] is fixed.
+#
+do_execsql_test 2.1 {
+  CREATE TABLE b1(a TEXT);
+  CREATE TABLE b2(x BLOB);
+  INSERT INTO b1 VALUES(1);
+  INSERT INTO b2 VALUES(1);
+}
+do_execsql_test 2.2 { SELECT * FROM b1, b2 WHERE a=x; } {}
+do_execsql_test 2.3 { SELECT * FROM b1 WHERE a IN (SELECT x FROM b2) } {}
+do_execsql_test 2.4 { CREATE UNIQUE INDEX b1a ON b1(a); }
+do_execsql_test 2.5 { SELECT * FROM b1 WHERE a IN (SELECT x FROM b2) } {}
+
+# Test that a multi-column version of the query that revealed problem 
+# [199df416] also works.
+#
+do_execsql_test 3.1 {
+  CREATE TABLE c1(a INTEGER, b TEXT);
+  INSERT INTO c1 VALUES(1, 1);
+  CREATE TABLE c2(x BLOB, y BLOB);
+  INSERT INTO c2 VALUES(1, 1);
+}
+do_execsql_test 3.2 {
+  SELECT * FROM c1 WHERE (a, b) IN (SELECT x, y FROM c2)
+} {}
+do_execsql_test 3.3 {
+  CREATE UNIQUE INDEX c1ab ON c1(a, b);
+  SELECT * FROM c1 WHERE (a, b) IN (SELECT x, y FROM c2)
+} {}
+do_execsql_test 3.4 {
+  SELECT * FROM c1 WHERE (a, +b) IN (SELECT x, y FROM c2)
+} {}
+
+do_execsql_test 3.5 {
+  SELECT c1.rowid FROM c1 WHERE b = (SELECT y FROM c2);
+} {}
+do_execsql_test 3.6 {
+  SELECT c1.rowid FROM c1 WHERE (a, b) = (SELECT x, y FROM c2);
+} {}
+
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test 4.0 {
+  CREATE TABLE d1(a TEXT, b INTEGER, c NUMERIC);
+  CREATE TABLE d2(x BLOB, y BLOB);
+
+  INSERT INTO d1 VALUES(1, 1, 1);
+  INSERT INTO d1 VALUES(2, 2, 2);
+  INSERT INTO d1 VALUES(3, 3, 3);
+  INSERT INTO d1 VALUES(4, 4, 4);
+
+  INSERT INTO d2 VALUES (1, 1);
+  INSERT INTO d2 VALUES (2, '2');
+  INSERT INTO d2 VALUES ('3', 3);
+  INSERT INTO d2 VALUES ('4', '4');
+}
+
+foreach {tn idx} {
+  1 {}
+  2 { CREATE INDEX idx ON d1(a) }
+  3 { CREATE INDEX idx ON d1(a, c) }
+  4 { CREATE INDEX idx ON d1(c) }
+  5 { CREATE INDEX idx ON d1(c, a) }
+
+  6 { 
+    CREATE INDEX idx ON d1(c, a) ;
+    CREATE INDEX idx1 ON d2(x, y);
+  }
+
+  7 { 
+    CREATE INDEX idx ON d1(c, a) ;
+    CREATE UNIQUE INDEX idx2 ON d2(x, y) ;
+  }
+
+  8 { 
+    CREATE INDEX idx ON d1(c) ;
+    CREATE UNIQUE INDEX idx2 ON d2(x);
+  }
+
+} {
+  execsql { DROP INDEX IF EXISTS idx } 
+  execsql { DROP INDEX IF EXISTS idx2 } 
+  execsql { DROP INDEX IF EXISTS idx3 } 
+  execsql $idx
+
+  do_execsql_test 4.$tn.1 {
+    SELECT rowid FROM d1 WHERE (a, c) IN (SELECT x, y FROM d2);
+  } {3 4}
+
+  do_execsql_test 4.$tn.2 {
+    SELECT rowid FROM d1 WHERE (c, a) IN (SELECT x, y FROM d2);
+  } {2 4}
+
+  do_execsql_test 4.$tn.3 {
+    SELECT rowid FROM d1 WHERE (+c, a) IN (SELECT x, y FROM d2);
+  } {2}
+
+  do_execsql_test 4.$tn.4 {
+    SELECT rowid FROM d1 WHERE (c, a) = (
+      SELECT x, y FROM d2 WHERE d2.rowid=d1.rowid
+    );
+  } {2 4}
+
+  do_execsql_test 4.$tn.5 {
+    SELECT d1.rowid FROM d1, d2 WHERE a = y;
+  } {2 4}
+
+  do_execsql_test 4.$tn.6 {
+    SELECT d1.rowid FROM d1 WHERE a = (
+      SELECT y FROM d2 where d2.rowid=d1.rowid
+    );
+  } {2 4}
+}
+
+do_execsql_test 5.0 {
+  CREATE TABLE e1(a TEXT, c NUMERIC);
+  CREATE TABLE e2(x BLOB, y BLOB);
+
+  INSERT INTO e1 VALUES(2, 2);
+
+  INSERT INTO e2 VALUES ('2', 2);
+  INSERT INTO e2 VALUES ('2', '2');
+  INSERT INTO e2 VALUES ('2', '2.0');
+
+  CREATE INDEX e1c ON e1(c);
+}
+
+do_execsql_test 5.1 {
+  SELECT rowid FROM e1 WHERE (a, c) IN (SELECT x, y FROM e2);
+} {1}
+do_execsql_test 5.2 {
+  SELECT rowid FROM e2 WHERE rowid IN (SELECT +c FROM e1);
+} {2}
+do_execsql_test 5.3 {
+  SELECT rowid FROM e2 WHERE rowid IN (SELECT 0+c FROM e1);
+} {2}
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test 6.0 {
+  CREATE TABLE f1(a, b);
+  CREATE TABLE f2(c, d);
+  CREATE TABLE f3(e, f);
+}
+
+do_execsql_test 6.1 {
+  SELECT * FROM f3 WHERE (e, f) IN (
+    SELECT a, b FROM f1 UNION ALL SELECT c, d FROM f2
+  );
+}
+do_execsql_test 6.2 {
+  CREATE INDEX f3e ON f3(e);
+  SELECT * FROM f3 WHERE (e, f) IN (
+    SELECT a, b FROM f1 UNION ALL SELECT c, d FROM f2
+  );
+}
+
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test 7.0 {
+  CREATE TABLE g1(a, b); 
+  INSERT INTO g1 VALUES
+      (1, 1), (1, 2), (1, 3), (1, 'i'), (1, 'j'),
+      (1, 6), (1, 7), (1, 8), (1, 9), (1, 10),
+      (1, 4), (1, 5);
+
+  CREATE TABLE g2(x, y);
+  CREATE INDEX g2x ON g2(x);
+
+  INSERT INTO g2 VALUES(1, 4);
+  INSERT INTO g2 VALUES(1, 5);
+}
+
+do_execsql_test 7.1 {
+  SELECT * FROM g2 WHERE (x, y) IN (
+    SELECT a, b FROM g1 ORDER BY +a, +b LIMIT 10
+  );
+} { 1 4 1 5 }
+
+do_execsql_test 7.2 {
+  SELECT * FROM g2 WHERE (x, y) IN (
+    SELECT a, b FROM g1 ORDER BY a, b LIMIT 10
+  );
+} { 1 4 1 5 }
+
+do_execsql_test 7.3 {
+  SELECT * FROM g2 WHERE (x, y) IN (
+    SELECT a, b FROM g1 ORDER BY 1, 2 LIMIT 10
+  );
+} { 1 4 1 5 }
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test 8.1 {
+  CREATE TABLE t1(a ,b FLOAT);
+  CREATE INDEX t1x1 ON t1(a,b,a,a,a,a,a,a,a,a,a,b);
+}
+
+do_catchsql_test 8.2 {
+  SELECT a FROM t1 NATURAL JOIN t1 WHERE (a,b)> (SELECT 2 IN (SELECT 2,2), 2);
+} {1 {sub-select returns 2 columns - expected 1}}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 9.0 {
+  CREATE TABLE t1(a, b);
+  INSERT INTO t1 VALUES(1, 1), (1, 2), (2, 2), (2, 3), (3, 3), (3, 4), (4, 4);
+}
+
+do_execsql_test 9.1 {
+  SELECT * FROM t1 WHERE (a, b) IN ( (3, 3), (2, 2) );
+} {
+  2 2 3 3
+}
+do_execsql_test 9.2 {
+  CREATE INDEX i1 ON t1(a);
+}
+
+do_execsql_test 9.4 {
+  SELECT * FROM t1 WHERE (a, b) IN ( (3, 3), (2, 2) );
+} {
+  2 2 3 3
+}
+do_eqp_test 9.4e {
+  SELECT * FROM t1 WHERE (a, b) IN ( (3, 3), (2, 2) );
+} {
+  *SEARCH t1 USING INDEX i1*
+}
+
+do_execsql_test 9.5 {
+  CREATE INDEX i2 ON t1(b, a);
+  SELECT * FROM t1 WHERE (a, b) IN ( (3, 3), (2, 2) );
+} {
+  2 2 3 3
+}
+do_eqp_test 9.5e {
+  SELECT * FROM t1 WHERE (a, b) IN ( (3, 3), (2, 2) );
+} {
+  *SEARCH t1 USING COVERING INDEX i2*
+}
+
+
+finish_test
diff --git a/test/rowvalueA.test b/test/rowvalueA.test
new file mode 100644
index 0000000000000000000000000000000000000000..8760c2c396f3cf31a8c184b50b31fab321d7161b
--- /dev/null
+++ b/test/rowvalueA.test
@@ -0,0 +1,76 @@
+# 2021 July 6
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix rowvalueA
+
+do_execsql_test 1.0 {
+  SELECT (1, 2) IN ( (3, 4), (5, 6), (1, 3) );
+} {0}
+
+do_execsql_test 1.1 {
+  SELECT (1, 2) IN ( (3, 4), (5, 6), (1, 2) );
+} {1}
+
+do_execsql_test 1.2 {
+  SELECT (1, 2) IN ( (3, 2) );
+} {0}
+
+do_execsql_test 1.3 {
+  SELECT (1, 2) IN ( (1, 2) );
+} {1}
+
+do_execsql_test 1.4 {
+  SELECT (1, 2) IN ( );
+} {0}
+
+do_execsql_test 1.5 {
+  SELECT (1, 2) NOT IN ( );
+} {1}
+
+for {set ii 0} {$ii < 2000} {incr ii} {
+  lappend L "($ii, $ii)"
+}
+
+do_execsql_test 1.6.1 "
+  SELECT (400,400) IN ( [join $L ,] )
+" 1
+
+do_execsql_test 1.6.2 "
+  SELECT (1500,1500) IN ( [join $L ,] )
+" 1
+
+do_execsql_test 1.6.2 "
+  SELECT (1500,1499) IN ( [join $L ,] )
+" 0
+
+#-------------------------------------------------------------------------
+
+do_catchsql_test 2.0 {
+  SELECT (1, 2) IN ( (1, 2), (3, 4, 5), (5, 6) )
+} {1 {IN(...) element has 3 terms - expected 2}}
+
+do_catchsql_test 2.1 {
+  SELECT (1, 2) IN ( (1, 2), 4, (5, 6) )
+} {1 {IN(...) element has 1 term - expected 2}}
+
+do_catchsql_test 2.2 {
+  SELECT (1, 2, 3) IN ( (1, 2), (3, 4), (5, 6) )
+} {1 {IN(...) element has 2 terms - expected 3}}
+
+do_catchsql_test 2.3 {
+  SELECT 2 IN ( (1, 2), (3, 4), (5, 6) )
+} {1 {row value misused}}
+
+finish_test
diff --git a/test/rowvaluefault.test b/test/rowvaluefault.test
new file mode 100644
index 0000000000000000000000000000000000000000..a06ef886e96e297f8d7f9979f9ccef41a082299c
--- /dev/null
+++ b/test/rowvaluefault.test
@@ -0,0 +1,89 @@
+# 2016 June 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  
+#
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+set ::testprefix rowvaluefault
+
+do_execsql_test 1.0 {
+  CREATE TABLE xyz(one, two, thr, fou);
+  INSERT INTO xyz VALUES('A', 'A', 'A',  1);
+  INSERT INTO xyz VALUES('B', 'B', 'B',  2);
+  INSERT INTO xyz VALUES('C', 'C', 'C',  3);
+  INSERT INTO xyz VALUES('D', 'D', 'D',  4);
+
+  CREATE UNIQUE INDEX xyz_one_two ON xyz(one, two);
+}
+
+do_faultsim_test 1 -faults oom* -body {
+  execsql { SELECT fou FROM xyz WHERE (one, two, thr) = ('B', 'B', 'B') }
+} -test {
+  faultsim_test_result {0 2} 
+}
+
+do_faultsim_test 2 -faults oom* -body {
+  execsql { SELECT fou FROM xyz WHERE (two, thr) IS ('C', 'C') }
+} -test {
+  faultsim_test_result {0 3} 
+}
+
+do_faultsim_test 3 -faults oom* -body {
+  execsql { SELECT fou FROM xyz WHERE (one, two, thr) > ('B', 'B', 'B') }
+} -test {
+  faultsim_test_result {0 {3 4}} 
+}
+
+do_faultsim_test 4 -faults oom* -body {
+  execsql { SELECT fou FROM xyz WHERE (one, two) IN (SELECT one, two FROM xyz) }
+} -test {
+  faultsim_test_result {0 {1 2 3 4}} 
+}
+
+do_faultsim_test 5 -faults oom* -body {
+  execsql { 
+    SELECT fou FROM xyz 
+    WHERE (one, two, thr) IN (SELECT one, two, thr FROM xyz) 
+  }
+} -test {
+  faultsim_test_result {0 {1 2 3 4}} 
+}
+
+do_faultsim_test 6 -faults oom* -body {
+  execsql { 
+    SELECT fou FROM xyz 
+    WHERE (one, two, thr) BETWEEN ('B', 'B', 'B') AND ('C', 'C', 'C') }
+} -test {
+  faultsim_test_result {0 {2 3}} 
+}
+
+do_faultsim_test 7 -faults oom* -body {
+  execsql { 
+    SELECT fou FROM xyz 
+    WHERE (one, two, thr) IN ( ('a','b','c'), ('A','A','A'), (1,2,3) );
+  }
+} -test {
+  faultsim_test_result {0 1}
+}
+
+do_faultsim_test 8 -faults oom* -body {
+  execsql { 
+    SELECT fou FROM xyz 
+    WHERE (two, one) IN ( ('a','b','c'), ('A','A','A'), (1,2,3) );
+  }
+} -test {
+  faultsim_test_result {1 {IN(...) element has 3 terms - expected 2}}
+}
+
+finish_test
diff --git a/test/rowvaluevtab.test b/test/rowvaluevtab.test
new file mode 100644
index 0000000000000000000000000000000000000000..d3e0ac7b8ad0746168be61fe5422589756176ca2
--- /dev/null
+++ b/test/rowvaluevtab.test
@@ -0,0 +1,95 @@
+# 2018 October 14
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix rowvaluevtab
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+register_echo_module db
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b, c);
+  CREATE INDEX t1b ON t1(b);
+  INSERT INTO t1 VALUES('one', 1, 1);
+  INSERT INTO t1 VALUES('two', 1, 2);
+  INSERT INTO t1 VALUES('three', 1, 3);
+  INSERT INTO t1 VALUES('four', 2, 1);
+  INSERT INTO t1 VALUES('five', 2, 2);
+  INSERT INTO t1 VALUES('six', 2, 3);
+  INSERT INTO t1 VALUES('seven', 3, 1);
+  INSERT INTO t1 VALUES('eight', 3, 2);
+  INSERT INTO t1 VALUES('nine', 3, 3);
+
+  WITH s(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<10000
+  ) INSERT INTO t1 SELECT NULL, NULL, NULL FROM s;
+  CREATE VIRTUAL TABLE e1 USING echo(t1);
+}
+
+proc do_vfilter4_test {tn sql expected} {
+  set res [list]
+  db eval "explain $sql" {
+    if {$opcode=="VFilter"} {
+      lappend res $p4
+    }
+  }
+  uplevel [list do_test $tn [list set {} $res] [list {*}$expected]]
+}
+
+do_execsql_test 1.1 {
+  SELECT a FROM e1 WHERE (b, c) = (2, 2)
+} {five}
+do_vfilter4_test 1.1f {
+  SELECT a FROM e1 WHERE (b, c) = (?, ?)
+} {{SELECT rowid, a, b, c FROM 't1' WHERE b = ?}}
+
+do_execsql_test 1.2 {
+  SELECT a FROM e1 WHERE (b, c) > (2, 2)
+} {six seven eight nine}
+do_vfilter4_test 1.2f {
+  SELECT a FROM e1 WHERE (b, c) > (2, 2)
+} {
+  {SELECT rowid, a, b, c FROM 't1' WHERE b >= ?}
+}
+
+do_execsql_test 1.3 {
+  SELECT a FROM e1 WHERE (b, c) >= (2, 2)
+} {five six seven eight nine}
+do_vfilter4_test 1.3f {
+  SELECT a FROM e1 WHERE (b, c) >= (2, 2)
+} {
+  {SELECT rowid, a, b, c FROM 't1' WHERE b >= ?}
+}
+
+do_execsql_test 1.3 {
+  SELECT a FROM e1 WHERE (b, c) BETWEEN (1, 2) AND (2, 3)
+} {two three four five six}
+do_vfilter4_test 1.3f {
+  SELECT a FROM e1 WHERE (b, c) BETWEEN (1, 2) AND (2, 3)
+} {
+  {SELECT rowid, a, b, c FROM 't1' WHERE b >= ? AND b <= ?}
+}
+
+do_execsql_test 1.4 {
+  SELECT a FROM e1 WHERE (b, c) IN ( VALUES(2, 2) )
+} {five}
+do_vfilter4_test 1.4f {
+  SELECT a FROM e1 WHERE (b, c) IN ( VALUES(2, 2) )
+} {{SELECT rowid, a, b, c FROM 't1' WHERE b = ?}}
+
+finish_test
diff --git a/test/rtree.test b/test/rtree.test
new file mode 100644
index 0000000000000000000000000000000000000000..b5045746cd8681de61cc4c9ad780db45e4999f7f
--- /dev/null
+++ b/test/rtree.test
@@ -0,0 +1,18 @@
+# 2008 June 23
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file runs all rtree related tests.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/permutations.test
+
+ifcapable rtree {
+  run_test_suite rtree
+}
+
+finish_test
diff --git a/test/run-wordcount.sh b/test/run-wordcount.sh
new file mode 100644
index 0000000000000000000000000000000000000000..1755d58161f67d6665b67a996633c07e5ca6fe7c
--- /dev/null
+++ b/test/run-wordcount.sh
@@ -0,0 +1,78 @@
+#!/bin/sh
+#
+# This script runs the wordcount program in different ways, comparing
+# the output from each.
+#
+
+# Select the source text to be analyzed.
+#
+if test "x$1" = "x";
+then echo "Usage: $0 FILENAME [ARGS...]"; exit 1;
+fi
+
+# Do test runs
+#
+rm -f wcdb1.db
+./wordcount --timer --summary wcdb1.db $* --insert >wc-out.txt
+mv wc-out.txt wc-baseline.txt
+rm -f wcdb2.db
+./wordcount --timer --summary wcdb2.db $* --insert --without-rowid >wc-out.txt
+  if cmp -s wc-out.txt wc-baseline.txt;
+  then echo hi >/dev/null;
+  else echo ERROR:;
+       diff -u wc-baseline.txt wc-out.txt;
+  fi
+
+rm -f wcdb1.db
+./wordcount --timer --summary wcdb1.db $* --replace >wc-out.txt
+  if cmp -s wc-out.txt wc-baseline.txt;
+  then echo hi >/dev/null;
+  else echo ERROR:;
+       diff -u wc-baseline.txt wc-out.txt;
+  fi
+rm -f wcdb2.db
+./wordcount --timer --summary wcdb2.db $* --replace --without-rowid >wc-out.txt
+  if cmp -s wc-out.txt wc-baseline.txt;
+  then echo hi >/dev/null;
+  else echo ERROR:;
+       diff -u wc-baseline.txt wc-out.txt;
+  fi
+
+rm -f wcdb1.db
+./wordcount --timer --summary wcdb1.db $* --select >wc-out.txt
+  if cmp -s wc-out.txt wc-baseline.txt;
+  then echo hi >/dev/null;
+  else echo ERROR:;
+       diff -u wc-baseline.txt wc-out.txt;
+  fi
+
+rm -f wcdb2.db
+./wordcount --timer --summary wcdb2.db $* --select --without-rowid >wc-out.txt
+  if cmp -s wc-out.txt wc-baseline.txt;
+  then echo hi >/dev/null;
+  else echo ERROR:;
+       diff -u wc-baseline.txt wc-out.txt;
+  fi
+
+./wordcount --timer --summary wcdb1.db $* --query >wc-out.txt
+mv wc-out.txt wc-baseline.txt
+./wordcount --timer --summary wcdb2.db $* --query --without-rowid >wc-out.txt
+  if cmp -s wc-out.txt wc-baseline.txt;
+  then echo hi >/dev/null;
+  else echo ERROR:;
+       diff -u wc-baseline.txt wc-out.txt;
+  fi
+
+./wordcount --timer --summary wcdb1.db $* --delete >wc-out.txt
+mv wc-out.txt wc-baseline.txt
+./wordcount --timer --summary wcdb2.db $* --delete --without-rowid >wc-out.txt
+  if cmp -s wc-out.txt wc-baseline.txt;
+  then echo hi >/dev/null;
+  else echo ERROR:;
+       diff -u wc-baseline.txt wc-out.txt;
+  fi
+
+
+# Clean up temporary files created.
+#
+rm -rf wcdb1.db wcdb2.db wc-out.txt wc-baseline.txt
diff --git a/test/savepoint.test b/test/savepoint.test
new file mode 100644
index 0000000000000000000000000000000000000000..3952981dabb9eb2eb85a677107a5c778c9e193fb
--- /dev/null
+++ b/test/savepoint.test
@@ -0,0 +1,1058 @@
+# 2008 December 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# $Id: savepoint.test,v 1.13 2009/07/18 08:30:45 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+source $testdir/malloc_common.tcl
+
+forcedelete test2.db
+
+#----------------------------------------------------------------------
+# The following tests - savepoint-1.* - test that the SAVEPOINT, RELEASE
+# and ROLLBACK TO comands are correctly parsed, and that the auto-commit
+# flag is correctly set and unset as a result.
+#
+do_test savepoint-1.1 {
+  wal_set_journal_mode
+  execsql {
+    SAVEPOINT sp1;
+    RELEASE sp1;
+  }
+} {}
+do_test savepoint-1.2 {
+  execsql {
+    SAVEPOINT sp1;
+    ROLLBACK TO sp1;
+  }
+} {}
+do_test savepoint-1.3 {
+  execsql { SAVEPOINT sp1 }
+  db close
+} {}
+sqlite3 db test.db
+do_test savepoint-1.4.1 {
+  execsql {
+    SAVEPOINT sp1;
+    SAVEPOINT sp2;
+    RELEASE sp1;
+  }
+  sqlite3_get_autocommit db
+} {1}
+do_test savepoint-1.4.2 {
+  execsql {
+    SAVEPOINT sp1;
+    SAVEPOINT sp2;
+    RELEASE sp2;
+  }
+  sqlite3_get_autocommit db
+} {0}
+do_test savepoint-1.4.3 {
+  execsql { RELEASE sp1 }
+  sqlite3_get_autocommit db
+} {1}
+do_test savepoint-1.4.4 {
+  execsql {
+    SAVEPOINT sp1;
+    SAVEPOINT sp2;
+    ROLLBACK TO sp1;
+  }
+  sqlite3_get_autocommit db
+} {0}
+do_test savepoint-1.4.5 {
+  execsql { RELEASE SAVEPOINT sp1 }
+  sqlite3_get_autocommit db
+} {1}
+do_test savepoint-1.4.6 {
+  execsql {
+    SAVEPOINT sp1;
+    SAVEPOINT sp2;
+    SAVEPOINT sp3;
+    ROLLBACK TO SAVEPOINT sp3;
+    ROLLBACK TRANSACTION TO sp2;
+    ROLLBACK TRANSACTION TO SAVEPOINT sp1;
+  }
+  sqlite3_get_autocommit db
+} {0}
+do_test savepoint-1.4.7 {
+  execsql { RELEASE SAVEPOINT SP1 }
+  sqlite3_get_autocommit db
+} {1}
+do_test savepoint-1.5 {
+  execsql {
+    SAVEPOINT sp1;
+    ROLLBACK TO sp1;
+  }
+} {}
+do_test savepoint-1.6 {
+  execsql COMMIT
+} {}
+wal_check_journal_mode savepoint-1.7
+
+#------------------------------------------------------------------------
+# These tests - savepoint-2.* - test rollbacks and releases of savepoints
+# with a very simple data set.
+# 
+
+do_test savepoint-2.1 {
+  execsql {
+    CREATE TABLE t1(a, b, c);
+    BEGIN;
+    INSERT INTO t1 VALUES(1, 2, 3);
+    SAVEPOINT one;
+    UPDATE t1 SET a = 2, b = 3, c = 4;
+  }
+  execsql { SELECT * FROM t1 }
+} {2 3 4}
+do_test savepoint-2.2 {
+  execsql {
+    ROLLBACK TO one;
+  }
+  execsql { SELECT * FROM t1 }
+} {1 2 3}
+do_test savepoint-2.3 {
+  execsql {
+    INSERT INTO t1 VALUES(4, 5, 6);
+  }
+  execsql { SELECT * FROM t1 }
+} {1 2 3 4 5 6}
+do_test savepoint-2.4 {
+  execsql {
+    ROLLBACK TO one;
+  }
+  execsql { SELECT * FROM t1 }
+} {1 2 3}
+
+
+do_test savepoint-2.5 {
+  execsql {
+    INSERT INTO t1 VALUES(7, 8, 9);
+    SAVEPOINT two;
+    INSERT INTO t1 VALUES(10, 11, 12);
+  }
+  execsql { SELECT * FROM t1 }
+} {1 2 3 7 8 9 10 11 12}
+do_test savepoint-2.6 {
+  execsql {
+    ROLLBACK TO two;
+  }
+  execsql { SELECT * FROM t1 }
+} {1 2 3 7 8 9}
+do_test savepoint-2.7 {
+  execsql {
+    INSERT INTO t1 VALUES(10, 11, 12);
+  }
+  execsql { SELECT * FROM t1 }
+} {1 2 3 7 8 9 10 11 12}
+do_test savepoint-2.8 {
+  execsql {
+    ROLLBACK TO one;
+  }
+  execsql { SELECT * FROM t1 }
+} {1 2 3}
+do_test savepoint-2.9 {
+  execsql {
+    INSERT INTO t1 VALUES('a', 'b', 'c');
+    SAVEPOINT two;
+    INSERT INTO t1 VALUES('d', 'e', 'f');
+  }
+  execsql { SELECT * FROM t1 }
+} {1 2 3 a b c d e f}
+do_test savepoint-2.10 {
+  execsql {
+    RELEASE two;
+  }
+  execsql { SELECT * FROM t1 }
+} {1 2 3 a b c d e f}
+do_test savepoint-2.11 {
+  execsql {
+    ROLLBACK;
+  }
+  execsql { SELECT * FROM t1 }
+} {}
+wal_check_journal_mode savepoint-2.12
+
+#------------------------------------------------------------------------
+# This block of tests - savepoint-3.* - test that when a transaction
+# savepoint is rolled back, locks are not released from database files.
+# And that when a transaction savepoint is released, they are released.
+#
+# These tests do not work in WAL mode. WAL mode does not take RESERVED
+# locks on the database file.
+# 
+if {[wal_is_wal_mode]==0} {
+  do_test savepoint-3.1 {
+    execsql { SAVEPOINT "transaction" }
+    execsql { PRAGMA lock_status }
+  } {main unlocked temp closed}
+  
+  do_test savepoint-3.2 {
+    execsql { INSERT INTO t1 VALUES(1, 2, 3) }
+    execsql { PRAGMA lock_status }
+  } {main reserved temp closed}
+  
+  do_test savepoint-3.3 {
+    execsql { ROLLBACK TO "transaction" }
+    execsql { PRAGMA lock_status }
+  } {main reserved temp closed}
+  
+  do_test savepoint-3.4 {
+    execsql { INSERT INTO t1 VALUES(1, 2, 3) }
+    execsql { PRAGMA lock_status }
+  } {main reserved temp closed}
+  
+  do_test savepoint-3.5 {
+    execsql { RELEASE "transaction" }
+    execsql { PRAGMA lock_status }
+  } {main unlocked temp closed}
+}
+
+#------------------------------------------------------------------------
+# Test that savepoints that include schema modifications are handled
+# correctly. Test cases savepoint-4.*.
+# 
+do_test savepoint-4.1 {
+  execsql {
+    CREATE TABLE t2(d, e, f);
+    SELECT sql FROM sqlite_master;
+  }
+} {{CREATE TABLE t1(a, b, c)} {CREATE TABLE t2(d, e, f)}}
+do_test savepoint-4.2 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t3(g,h);
+    INSERT INTO t3 VALUES('I', 'II');
+    SAVEPOINT one;
+    DROP TABLE t3;
+  }
+} {}
+do_test savepoint-4.3 {
+  execsql {
+    CREATE TABLE t3(g, h, i);
+    INSERT INTO t3 VALUES('III', 'IV', 'V');
+  }
+  execsql {SELECT * FROM t3}
+} {III IV V}
+do_test savepoint-4.4 {
+  execsql { ROLLBACK TO one; }
+  execsql {SELECT * FROM t3}
+} {I II}
+do_test savepoint-4.5 {
+  execsql {
+    ROLLBACK;
+    SELECT sql FROM sqlite_master;
+  }
+} {{CREATE TABLE t1(a, b, c)} {CREATE TABLE t2(d, e, f)}}
+
+do_test savepoint-4.6 {
+  execsql {
+    BEGIN;
+    INSERT INTO t1 VALUES('o', 't', 't');
+    SAVEPOINT sp1;
+    CREATE TABLE t3(a, b, c);
+    INSERT INTO t3 VALUES('z', 'y', 'x');
+  }
+  execsql {SELECT * FROM t3}
+} {z y x}
+do_test savepoint-4.7 {
+  execsql {
+    ROLLBACK TO sp1;
+    CREATE TABLE t3(a);
+    INSERT INTO t3 VALUES('value');
+  }
+  execsql {SELECT * FROM t3}
+} {value}
+do_test savepoint-4.8 {
+  execsql COMMIT
+} {}
+wal_check_journal_mode savepoint-4.9
+
+#------------------------------------------------------------------------
+# Test some logic errors to do with the savepoint feature.
+# 
+
+ifcapable incrblob {
+  do_test savepoint-5.1.1 {
+    execsql {
+      CREATE TABLE blobs(x);
+      INSERT INTO blobs VALUES('a twentyeight character blob');
+    }
+    set fd [db incrblob blobs x 1]
+    puts -nonewline $fd "hello"
+    catchsql {SAVEPOINT abc}
+  } {1 {cannot open savepoint - SQL statements in progress}}
+  do_test savepoint-5.1.2 {
+    close $fd
+    catchsql {SAVEPOINT abc}
+  } {0 {}}
+  
+  do_test savepoint-5.2 {
+    execsql  {RELEASE abc}
+    catchsql {RELEASE abc}
+  } {1 {no such savepoint: abc}}
+  
+  do_test savepoint-5.3.1 {
+    execsql  {SAVEPOINT abc}
+    catchsql {ROLLBACK TO def}
+  } {1 {no such savepoint: def}}
+  do_test savepoint-5.3.2.1 {
+    execsql  {SAVEPOINT def}
+    set fd [db incrblob -readonly blobs x 1]
+    set rc [catch {seek $fd 0;read $fd} res]
+    lappend rc $res
+  } {0 {hellontyeight character blob}}
+  do_test savepoint-5.3.2.2 {
+    catchsql {ROLLBACK TO def}
+  } {0 {}}
+  do_test savepoint-5.3.2.3 {
+    set rc [catch {seek $fd 0; read $fd} res]
+    set rc
+  } {0}
+  do_test savepoint-5.3.3 {
+    catchsql  {RELEASE def}
+  } {0 {}}
+  do_test savepoint-5.3.4 {
+    close $fd
+    execsql  {savepoint def}
+    set fd [db incrblob blobs x 1]
+    catchsql {release def}
+  } {1 {cannot release savepoint - SQL statements in progress}}
+  do_test savepoint-5.3.5 {
+    close $fd
+    execsql {release abc}
+  } {}
+  
+  # Rollback mode:
+  #
+  #   Open a savepoint transaction and insert a row into the database. Then,
+  #   using a second database handle, open a read-only transaction on the
+  #   database file. Check that the savepoint transaction cannot be committed
+  #   until after the read-only transaction has been closed.
+  #
+  # WAL mode:
+  # 
+  #   As above, except that the savepoint transaction can be successfully
+  #   committed before the read-only transaction has been closed.
+  #
+  do_test savepoint-5.4.1 {
+    execsql {
+      SAVEPOINT main;
+      INSERT INTO blobs VALUES('another blob');
+    }
+  } {}
+  do_test savepoint-5.4.2 {
+    sqlite3 db2 test.db
+    execsql { BEGIN ; SELECT count(*) FROM blobs } db2
+  } {1}
+  if {[wal_is_wal_mode]} {
+    do_test savepoint-5.4.3 { catchsql "RELEASE main" } {0 {}}
+    do_test savepoint-5.4.4 { db2 close               } {}
+  } else {
+    do_test savepoint-5.4.3 {
+      catchsql { RELEASE main }
+    } {1 {database is locked}}
+    do_test savepoint-5.4.4 {
+      db2 close
+      catchsql { RELEASE main }
+    } {0 {}}
+  }
+  do_test savepoint-5.4.5 {
+    execsql { SELECT x FROM blobs WHERE rowid = 2 }
+  } {{another blob}}
+  do_test savepoint-5.4.6 {
+    execsql { SELECT count(*) FROM blobs }
+  } {2}
+}
+wal_check_journal_mode savepoint-5.5
+
+#-------------------------------------------------------------------------
+# The following tests, savepoint-6.*, test an incr-vacuum inside of a
+# couple of nested savepoints.
+#
+ifcapable {autovacuum && pragma} {
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+
+  do_test savepoint-6.1 {
+    execsql { PRAGMA auto_vacuum = incremental }
+    wal_set_journal_mode
+    execsql {
+      CREATE TABLE t1(a, b, c);
+      CREATE INDEX i1 ON t1(a, b);
+      BEGIN;
+      INSERT INTO t1 VALUES(randstr(10,400),randstr(10,400),randstr(10,400));
+    }
+    set r "randstr(10,400)"
+    for {set ii 0} {$ii < 10} {incr ii} {
+      execsql "INSERT INTO t1 SELECT $r, $r, $r FROM t1"
+    }
+    execsql { COMMIT }
+  } {}
+
+  integrity_check savepoint-6.2
+
+  do_test savepoint-6.3 {
+    execsql {
+      PRAGMA cache_size = 10;
+      BEGIN;
+        UPDATE t1 SET a = randstr(10,10) WHERE (rowid%4)==0;
+        SAVEPOINT one;
+          DELETE FROM t1 WHERE rowid%2;
+          PRAGMA incr_vacuum;
+          SAVEPOINT two;
+            INSERT INTO t1 SELECT randstr(10,400), randstr(10,400), c FROM t1;
+            DELETE FROM t1 WHERE rowid%2;
+            PRAGMA incr_vacuum;
+        ROLLBACK TO one;
+      COMMIT;
+    }
+  } {}
+
+  integrity_check savepoint-6.4
+
+  wal_check_journal_mode savepoint-6.5
+}
+
+#-------------------------------------------------------------------------
+# The following tests, savepoint-7.*, attempt to break the logic 
+# surrounding savepoints by growing and shrinking the database file.
+#
+db close
+forcedelete test.db
+sqlite3 db test.db
+
+do_test savepoint-7.1 {
+  execsql { PRAGMA auto_vacuum = incremental }
+  wal_set_journal_mode
+  execsql {
+    PRAGMA cache_size = 10;
+    BEGIN;
+    CREATE TABLE t1(a PRIMARY KEY, b);
+      INSERT INTO t1(a) VALUES('alligator');
+      INSERT INTO t1(a) VALUES('angelfish');
+      INSERT INTO t1(a) VALUES('ant');
+      INSERT INTO t1(a) VALUES('antelope');
+      INSERT INTO t1(a) VALUES('ape');
+      INSERT INTO t1(a) VALUES('baboon');
+      INSERT INTO t1(a) VALUES('badger');
+      INSERT INTO t1(a) VALUES('bear');
+      INSERT INTO t1(a) VALUES('beetle');
+      INSERT INTO t1(a) VALUES('bird');
+      INSERT INTO t1(a) VALUES('bison');
+      UPDATE t1 SET b =    randstr(1000,1000);
+      UPDATE t1 SET b = b||randstr(1000,1000);
+      UPDATE t1 SET b = b||randstr(1000,1000);
+      UPDATE t1 SET b = b||randstr(10,1000);
+    COMMIT;
+  }
+  expr ([execsql { PRAGMA page_count }] > 20)
+} {1}
+do_test savepoint-7.2.1 {
+  execsql {
+    BEGIN;
+      SAVEPOINT one;
+      CREATE TABLE t2(a, b);
+      INSERT INTO t2 SELECT a, b FROM t1;
+      ROLLBACK TO one;
+  }
+  execsql {
+    PRAGMA integrity_check;
+  }
+} {ok}
+do_test savepoint-7.2.2 {
+  execsql {
+    COMMIT;
+    PRAGMA integrity_check;
+  }
+} {ok}
+
+do_test savepoint-7.3.1 {
+  execsql {
+    CREATE TABLE t2(a, b);
+    INSERT INTO t2 SELECT a, b FROM t1;
+  }
+} {}
+do_test savepoint-7.3.2 {
+  execsql {
+    BEGIN;
+      SAVEPOINT one;
+        DELETE FROM t2;
+        PRAGMA incremental_vacuum;
+        SAVEPOINT two;
+          INSERT INTO t2 SELECT a, b FROM t1;
+        ROLLBACK TO two;
+    COMMIT;
+  }
+  execsql { PRAGMA integrity_check }
+} {ok}
+wal_check_journal_mode savepoint-7.3.3
+
+do_test savepoint-7.4.1 {
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+  execsql { PRAGMA auto_vacuum = incremental }
+  wal_set_journal_mode
+  execsql {
+    CREATE TABLE t1(a, b, PRIMARY KEY(a, b));
+    INSERT INTO t1 VALUES(randstr(1000,1000), randstr(1000,1000));
+    BEGIN;
+      DELETE FROM t1;
+      SAVEPOINT one;
+      PRAGMA incremental_vacuum;
+      ROLLBACK TO one;
+    COMMIT;
+  }
+
+  execsql { PRAGMA integrity_check }
+} {ok}
+
+do_test savepoint-7.5.1 {
+  execsql {
+    PRAGMA incremental_vacuum;
+    CREATE TABLE t5(x, y);
+    INSERT INTO t5 VALUES(1, randstr(1000,1000));
+    INSERT INTO t5 VALUES(2, randstr(1000,1000));
+    INSERT INTO t5 VALUES(3, randstr(1000,1000));
+
+    BEGIN;
+      INSERT INTO t5 VALUES(4, randstr(1000,1000));
+      INSERT INTO t5 VALUES(5, randstr(1000,1000));
+      DELETE FROM t5 WHERE x=1 OR x=2;
+      SAVEPOINT one;
+        PRAGMA incremental_vacuum;
+        SAVEPOINT two;
+          INSERT INTO t5 VALUES(1, randstr(1000,1000));
+          INSERT INTO t5 VALUES(2, randstr(1000,1000));
+        ROLLBACK TO two;
+      ROLLBACK TO one;
+    COMMIT;
+    PRAGMA integrity_check;
+  }
+} {ok}
+do_test savepoint-7.5.2 {
+  execsql {
+    DROP TABLE t5;
+  }
+} {}
+wal_check_journal_mode savepoint-7.5.3
+
+# Test oddly named and quoted savepoints.
+#
+do_test savepoint-8-1 {
+  execsql { SAVEPOINT "save1" }
+  execsql { RELEASE save1 }
+} {}
+do_test savepoint-8-2 {
+  execsql { SAVEPOINT "Including whitespace " }
+  execsql { RELEASE "including Whitespace " }
+} {}
+
+# Test that the authorization callback works.
+#
+ifcapable auth {
+  proc auth {args} {
+    eval lappend ::authdata [lrange $args 0 4]
+    return SQLITE_OK
+  }
+  db auth auth
+
+  do_test savepoint-9.1 {
+    set ::authdata [list]
+    execsql { SAVEPOINT sp1 }
+    set ::authdata
+  } {SQLITE_SAVEPOINT BEGIN sp1 {} {}}
+  do_test savepoint-9.2 {
+    set ::authdata [list]
+    execsql { ROLLBACK TO sp1 }
+    set ::authdata
+  } {SQLITE_SAVEPOINT ROLLBACK sp1 {} {}}
+  do_test savepoint-9.3 {
+    set ::authdata [list]
+    execsql { RELEASE sp1 }
+    set ::authdata
+  } {SQLITE_SAVEPOINT RELEASE sp1 {} {}}
+
+  proc auth {args} {
+    eval lappend ::authdata [lrange $args 0 4]
+    return SQLITE_DENY
+  }
+  db auth auth
+
+  do_test savepoint-9.4 {
+    set ::authdata [list]
+    set res [catchsql { SAVEPOINT sp1 }]
+    concat $::authdata $res
+  } {SQLITE_SAVEPOINT BEGIN sp1 {} {} 1 {not authorized}}
+  do_test savepoint-9.5 {
+    set ::authdata [list]
+    set res [catchsql { ROLLBACK TO sp1 }]
+    concat $::authdata $res
+  } {SQLITE_SAVEPOINT ROLLBACK sp1 {} {} 1 {not authorized}}
+  do_test savepoint-9.6 {
+    set ::authdata [list]
+    set res [catchsql { RELEASE sp1 }]
+    concat $::authdata $res
+  } {SQLITE_SAVEPOINT RELEASE sp1 {} {} 1 {not authorized}}
+
+  catch { db eval ROLLBACK }
+  db auth ""
+}
+
+#-------------------------------------------------------------------------
+# The following tests - savepoint-10.* - test the interaction of 
+# savepoints and ATTACH statements.
+# 
+
+# First make sure it is not possible to attach or detach a database while
+# a savepoint is open (it is not possible if any transaction is open).
+#
+# UPDATE 2017-07-26:  It is not possible to ATTACH and DETACH within a
+# a transaction.
+#
+do_test savepoint-10.1.1 {
+  catchsql {
+    SAVEPOINT one;
+    ATTACH 'test2.db' AS aux;
+    DETACH aux;
+  }
+} {0 {}}
+do_test savepoint-10.1.2 {
+  execsql {
+    RELEASE one;
+    ATTACH 'test2.db' AS aux;
+  }
+  catchsql {
+    SAVEPOINT one;
+    DETACH aux;
+    ATTACH 'test2.db' AS aux;
+  }
+} {0 {}}
+do_test savepoint-10.1.3 {
+  execsql {
+    RELEASE one;
+    DETACH aux;
+  }
+} {}
+
+# The lock state of the TEMP database can vary if SQLITE_TEMP_STORE=3
+# And the following set of tests is only really interested in the status
+# of the aux1 and aux2 locks.  So record the current lock status of
+# TEMP for use in the answers.
+set templockstate [lindex [db eval {PRAGMA lock_status}] 3]
+
+
+if {[wal_is_wal_mode]==0} {
+  do_test savepoint-10.2.1 {
+    forcedelete test3.db
+    forcedelete test2.db
+    execsql {
+      ATTACH 'test2.db' AS aux1;
+      ATTACH 'test3.db' AS aux2;
+      DROP TABLE t1;
+      CREATE TABLE main.t1(x, y);
+      CREATE TABLE aux1.t2(x, y);
+      CREATE TABLE aux2.t3(x, y);
+      SELECT name FROM sqlite_master;
+      SELECT name FROM aux1.sqlite_master;
+      SELECT name FROM aux2.sqlite_master;
+    }
+  } {t1 t2 t3}
+  do_test savepoint-10.2.2 {
+    execsql { PRAGMA lock_status }
+  } [list main unlocked temp $templockstate aux1 unlocked aux2 unlocked]
+  
+  do_test savepoint-10.2.3 {
+    execsql {
+      SAVEPOINT one;
+      INSERT INTO t1 VALUES(1, 2);
+      PRAGMA lock_status;
+    }
+  } [list main reserved temp $templockstate aux1 unlocked aux2 unlocked]
+  do_test savepoint-10.2.4 {
+    execsql {
+      INSERT INTO t3 VALUES(3, 4);
+      PRAGMA lock_status;
+    }
+  } [list main reserved temp $templockstate aux1 unlocked aux2 reserved]
+  do_test savepoint-10.2.5 {
+    execsql {
+      SAVEPOINT two;
+      INSERT INTO t2 VALUES(5, 6);
+      PRAGMA lock_status;
+    }
+  } [list main reserved temp $templockstate aux1 reserved aux2 reserved]
+  do_test savepoint-10.2.6 {
+    execsql { SELECT * FROM t2 }
+  } {5 6}
+  do_test savepoint-10.2.7 {
+    execsql { ROLLBACK TO two }
+    execsql { SELECT * FROM t2 }
+  } {}
+  do_test savepoint-10.2.8 {
+    execsql { PRAGMA lock_status }
+  } [list main reserved temp $templockstate aux1 reserved aux2 reserved]
+  do_test savepoint-10.2.9 {
+    execsql { SELECT 'a', * FROM t1 ; SELECT 'b', * FROM t3 }
+  } {a 1 2 b 3 4}
+  do_test savepoint-10.2.9 {
+    execsql {
+      INSERT INTO t2 VALUES(5, 6);
+      RELEASE one;
+    }
+    execsql { 
+      SELECT * FROM t1;
+      SELECT * FROM t2;
+      SELECT * FROM t3;
+    }
+  } {1 2 5 6 3 4}
+  do_test savepoint-10.2.9 {
+    execsql { PRAGMA lock_status }
+  } [list main unlocked temp $templockstate aux1 unlocked aux2 unlocked]
+  
+  do_test savepoint-10.2.10 {
+    execsql { 
+      SAVEPOINT one;
+        INSERT INTO t1 VALUES('a', 'b');
+        SAVEPOINT two;
+          INSERT INTO t2 VALUES('c', 'd');
+          SAVEPOINT three;
+            INSERT INTO t3 VALUES('e', 'f');
+    }
+    execsql { 
+      SELECT * FROM t1;
+      SELECT * FROM t2;
+      SELECT * FROM t3;
+    }
+  } {1 2 a b 5 6 c d 3 4 e f}
+  do_test savepoint-10.2.11 {
+    execsql { ROLLBACK TO two }
+    execsql { 
+      SELECT * FROM t1;
+      SELECT * FROM t2;
+      SELECT * FROM t3;
+    }
+  } {1 2 a b 5 6 3 4}
+  do_test savepoint-10.2.12 {
+    execsql { 
+      INSERT INTO t3 VALUES('g', 'h');
+      ROLLBACK TO two;
+    }
+    execsql { 
+      SELECT * FROM t1;
+      SELECT * FROM t2;
+      SELECT * FROM t3;
+    }
+  } {1 2 a b 5 6 3 4}
+  do_test savepoint-10.2.13 {
+    execsql { ROLLBACK }
+    execsql { 
+      SELECT * FROM t1;
+      SELECT * FROM t2;
+      SELECT * FROM t3;
+    }
+  } {1 2 5 6 3 4}
+  do_test savepoint-10.2.14 {
+    execsql { PRAGMA lock_status }
+  } [list main unlocked temp $templockstate aux1 unlocked aux2 unlocked]
+}
+
+#-------------------------------------------------------------------------
+# The following tests - savepoint-11.* - test the interaction of 
+# savepoints and creating or dropping tables and indexes in 
+# auto-vacuum mode.
+# 
+do_test savepoint-11.1 {
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+  execsql { PRAGMA auto_vacuum = full; }
+  wal_set_journal_mode
+  execsql {
+    CREATE TABLE t1(a, b, UNIQUE(a, b));
+    INSERT INTO t1 VALUES(1, randstr(1000,1000));
+    INSERT INTO t1 VALUES(2, randstr(1000,1000));
+  }
+} {}
+do_test savepoint-11.2 {
+  execsql {
+    SAVEPOINT one;
+      CREATE TABLE t2(a, b, UNIQUE(a, b));
+      SAVEPOINT two;
+        CREATE TABLE t3(a, b, UNIQUE(a, b));
+  }
+} {}
+integrity_check savepoint-11.3
+do_test savepoint-11.4 {
+  execsql { ROLLBACK TO two }
+} {}
+integrity_check savepoint-11.5
+do_test savepoint-11.6 {
+  execsql { 
+    CREATE TABLE t3(a, b, UNIQUE(a, b));
+    ROLLBACK TO one;
+  }
+} {}
+integrity_check savepoint-11.7
+do_test savepoint-11.8 {
+  execsql { ROLLBACK }
+  execsql { PRAGMA wal_checkpoint }
+  file size test.db
+} {8192}
+
+do_test savepoint-11.9 {
+  execsql {
+    DROP TABLE IF EXISTS t1;
+    DROP TABLE IF EXISTS t2;
+    DROP TABLE IF EXISTS t3;
+  }
+} {}
+do_test savepoint-11.10 {
+  execsql {
+    BEGIN;
+      CREATE TABLE t1(a, b);
+      CREATE TABLE t2(x, y);
+      INSERT INTO t2 VALUES(1, 2);
+      SAVEPOINT one;
+        INSERT INTO t2 VALUES(3, 4);
+        SAVEPOINT two;
+          DROP TABLE t1;
+        ROLLBACK TO two;
+  }
+  execsql {SELECT * FROM t2}
+} {1 2 3 4}
+do_test savepoint-11.11 {
+  execsql COMMIT
+} {}
+do_test savepoint-11.12 {
+  execsql {SELECT * FROM t2}
+} {1 2 3 4}
+wal_check_journal_mode savepoint-11.13
+
+#-------------------------------------------------------------------------
+# The following tests - savepoint-12.* - test the interaction of 
+# savepoints and "ON CONFLICT ROLLBACK" clauses.
+# 
+do_test savepoint-12.1 {
+  execsql {
+    CREATE TABLE t4(a PRIMARY KEY, b);
+    INSERT INTO t4 VALUES(1, 'one');
+  }
+} {}
+do_test savepoint-12.2 {
+  # The final statement of the following SQL hits a constraint when the
+  # conflict handling mode is "OR ROLLBACK" and there are a couple of
+  # open savepoints. At one point this would fail to clear the internal
+  # record of the open savepoints, resulting in an assert() failure 
+  # later on.
+  # 
+  catchsql {
+    BEGIN;
+      INSERT INTO t4 VALUES(2, 'two');
+      SAVEPOINT sp1;
+        INSERT INTO t4 VALUES(3, 'three');
+        SAVEPOINT sp2;
+          INSERT OR ROLLBACK INTO t4 VALUES(1, 'one');
+  }
+} {1 {UNIQUE constraint failed: t4.a}}
+do_test savepoint-12.3 {
+  sqlite3_get_autocommit db
+} {1}
+do_test savepoint-12.4 {
+  execsql { SAVEPOINT one }
+} {}
+wal_check_journal_mode savepoint-12.5
+
+#-------------------------------------------------------------------------
+# The following tests - savepoint-13.* - test the interaction of 
+# savepoints and "journal_mode = off".
+# 
+if {[wal_is_wal_mode]==0} {
+  do_test savepoint-13.1 {
+    db close
+    catch {forcedelete test.db}
+    sqlite3 db test.db
+    execsql {
+      BEGIN;
+        CREATE TABLE t1(a PRIMARY KEY, b);
+        INSERT INTO t1 VALUES(1, 2);
+      COMMIT;
+      PRAGMA journal_mode = off;
+    }
+  } {off}
+  do_test savepoint-13.2 {
+    execsql {
+      BEGIN;
+      INSERT INTO t1 VALUES(3, 4);
+      INSERT INTO t1 SELECT a+4,b+4  FROM t1;
+      COMMIT;
+    }
+  } {}
+  do_test savepoint-13.3 {
+    execsql {
+      BEGIN;
+        INSERT INTO t1 VALUES(9, 10);
+        SAVEPOINT s1;
+          INSERT INTO t1 VALUES(11, 12);
+      COMMIT;
+    }
+  } {}
+  do_test savepoint-13.4 {
+    execsql {
+      BEGIN;
+        INSERT INTO t1 VALUES(13, 14);
+        SAVEPOINT s1;
+          INSERT INTO t1 VALUES(15, 16);
+        ROLLBACK TO s1;
+      ROLLBACK;
+      SELECT * FROM t1;
+    }
+  } {1 2 3 4 5 6 7 8 9 10 11 12}
+}
+
+db close
+delete_file test.db
+do_multiclient_test tn {
+  do_test savepoint-14.$tn.1 {
+    sql1 {
+      CREATE TABLE foo(x);
+      INSERT INTO foo VALUES(1);
+      INSERT INTO foo VALUES(2);
+    }
+    sql2 {
+      BEGIN;
+        SELECT * FROM foo;
+    }
+  } {1 2}
+  do_test savepoint-14.$tn.2 {
+    sql1 {
+      SAVEPOINT one;
+      INSERT INTO foo VALUES(1);
+    }
+    csql1 { RELEASE one }
+  } {1 {database is locked}}
+  do_test savepoint-14.$tn.3 {
+    sql1 { ROLLBACK TO one }
+    sql2 { COMMIT }
+    sql1 { RELEASE one }
+  } {}
+
+  do_test savepoint-14.$tn.4 {
+    sql2 {
+      BEGIN;
+        SELECT * FROM foo;
+    }
+  } {1 2}
+  do_test savepoint-14.$tn.5 {
+    sql1 {
+      SAVEPOINT one;
+      INSERT INTO foo VALUES(1);
+    }
+    csql1 { RELEASE one }
+  } {1 {database is locked}}
+  do_test savepoint-14.$tn.6 {
+    sql2 { COMMIT }
+    sql1 {
+      ROLLBACK TO one;
+      INSERT INTO foo VALUES(3);
+      INSERT INTO foo VALUES(4);
+      INSERT INTO foo VALUES(5);
+      RELEASE one;
+    }
+  } {}
+  do_test savepoint-14.$tn.7 {
+    sql2 { CREATE INDEX fooidx ON foo(x); }
+    sql3 { PRAGMA integrity_check }
+  } {ok}
+}
+
+do_multiclient_test tn {
+  do_test savepoint-15.$tn.1 {
+    sql1 {
+      CREATE TABLE foo(x);
+      INSERT INTO foo VALUES(1);
+      INSERT INTO foo VALUES(2);
+    }
+    sql2 { BEGIN; SELECT * FROM foo; }
+  } {1 2}
+  do_test savepoint-15.$tn.2 {
+    sql1 {
+      PRAGMA locking_mode = EXCLUSIVE;
+      BEGIN;
+        INSERT INTO foo VALUES(3);
+    }
+    csql1 { COMMIT }
+  } {1 {database is locked}}
+  do_test savepoint-15.$tn.3 {
+    sql1 { ROLLBACK }
+    sql2 { COMMIT }
+    sql1 {
+      INSERT INTO foo VALUES(3);
+      PRAGMA locking_mode = NORMAL;
+      INSERT INTO foo VALUES(4);
+    }
+    sql2 { CREATE INDEX fooidx ON foo(x); }
+    sql3 { PRAGMA integrity_check }
+  } {ok}
+}
+
+do_multiclient_test tn {
+  do_test savepoint-16.$tn.1 {
+    sql1 {
+      CREATE TABLE foo(x);
+      INSERT INTO foo VALUES(1);
+      INSERT INTO foo VALUES(2);
+    }
+  } {}
+  do_test savepoint-16.$tn.2 {
+
+    db eval {SELECT * FROM foo} {
+      sql1 { INSERT INTO foo VALUES(3) }
+      sql2 { SELECT * FROM foo }
+      sql1 { INSERT INTO foo VALUES(4) }
+      break
+    }
+
+    sql2 { CREATE INDEX fooidx ON foo(x); }
+    sql3 { PRAGMA integrity_check }
+  } {ok}
+  do_test savepoint-16.$tn.3 {
+    sql1 { SELECT * FROM foo }
+  } {1 2 3 4}
+}
+
+#-------------------------------------------------------------------------
+# This next block of tests verifies that a problem reported on the mailing
+# list has been resolved. At one point the second "CREATE TABLE t6" would
+# fail as table t6 still existed in the internal cache of the db schema
+# (even though it had been removed from the database by the ROLLBACK 
+# command).
+#
+sqlite3 db test.db
+do_execsql_test savepoint-17.1 {
+  BEGIN;
+    CREATE TABLE t6(a, b);
+    INSERT INTO t6 VALUES(1, 2);
+    SAVEPOINT one;
+      INSERT INTO t6 VALUES(3, 4);
+    ROLLBACK TO one;
+    SELECT * FROM t6;
+  ROLLBACK;
+} {1 2}
+
+do_execsql_test savepoint-17.2 {
+  CREATE TABLE t6(a, b);
+} {}
+
+finish_test
diff --git a/test/savepoint2.test b/test/savepoint2.test
new file mode 100644
index 0000000000000000000000000000000000000000..be1bdbd424539f2b58faaa07494b2f4215e89500
--- /dev/null
+++ b/test/savepoint2.test
@@ -0,0 +1,154 @@
+# 2008 December 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# $Id: savepoint2.test,v 1.5 2009/06/05 17:09:12 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+
+# Tests in this file are quite similar to those run by trans.test and
+# avtrans.test.
+#
+
+proc signature {} {
+  return [db eval {SELECT count(*), md5sum(x) FROM t3}]
+}
+
+do_test savepoint2-1 {
+  wal_set_journal_mode
+  execsql {
+    PRAGMA cache_size=10;
+    BEGIN;
+    CREATE TABLE t3(x TEXT);
+    INSERT INTO t3 VALUES(randstr(10,400));
+    INSERT INTO t3 VALUES(randstr(10,400));
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3;
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3;
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3;
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3;
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3;
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3;
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3;
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3;
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3;
+    COMMIT;
+    SELECT count(*) FROM t3;
+  }
+} {1024}
+wal_check_journal_mode savepoint2-1.1
+
+unset -nocomplain ::sig
+unset -nocomplain SQL
+
+set iterations 20
+
+set SQL(1) {
+  DELETE FROM t3 WHERE random()%10!=0;
+  INSERT INTO t3 SELECT randstr(10,10)||x FROM t3;
+  INSERT INTO t3 SELECT randstr(10,10)||x FROM t3;
+}
+set SQL(2) {
+  DELETE FROM t3 WHERE random()%10!=0;
+  INSERT INTO t3 SELECT randstr(10,10)||x FROM t3;
+  DELETE FROM t3 WHERE random()%10!=0;
+  INSERT INTO t3 SELECT randstr(10,10)||x FROM t3;
+} 
+set SQL(3) {
+  UPDATE t3 SET x = randstr(10, 400) WHERE random()%10;
+  INSERT INTO t3 SELECT x FROM t3 WHERE random()%10;
+  DELETE FROM t3 WHERE random()%10;
+}
+set SQL(4) {
+  INSERT INTO t3 SELECT randstr(10,400) FROM t3 WHERE (random()%10 == 0);
+}
+
+
+
+for {set ii 2} {$ii < ($iterations+2)} {incr ii} {
+
+  # Record the database signature. Optionally (every second run) open a
+  # transaction. In all cases open savepoint "one", which may or may
+  # not be a transaction savepoint, depending on whether or not a real
+  # transaction has been opened.
+  #
+  do_test savepoint2-$ii.1 {
+    if {$ii % 2} { execsql BEGIN }
+    set ::sig(one) [signature]
+    execsql "SAVEPOINT one"
+  } {}
+
+  # Execute some SQL on the database. Then rollback to savepoint "one".
+  # Check that the database signature is as it was when "one" was opened.
+  # 
+  do_test savepoint2-$ii.2 {
+    execsql $SQL(1)
+    execsql "ROLLBACK to one"
+    signature
+  } $::sig(one)
+  integrity_check savepoint2-$ii.2.1
+
+  # Execute some SQL. Then open savepoint "two". Savepoint "two" is therefore
+  # nested in savepoint "one".
+  #
+  do_test savepoint2-$ii.3 {
+    execsql $SQL(1)
+    set ::sig(two) [signature]
+    execsql "SAVEPOINT two"
+  } {}
+
+  # More SQL changes. The rollback to savepoint "two". Check that the 
+  # signature is as it was when savepoint "two" was opened.
+  #
+  do_test savepoint2-$ii.4 {
+    execsql $SQL(2)
+    execsql "ROLLBACK to two"
+    signature
+  } $::sig(two)
+  integrity_check savepoint2-$ii.4.1
+
+  # More SQL changes. The rollback to savepoint "two". Check that the 
+  # signature is as it was when savepoint "two" was opened.
+  #
+  do_test savepoint2-$ii.5 {
+    execsql $SQL(2)
+    execsql "SAVEPOINT three"
+    execsql $SQL(3)
+    execsql "RELEASE three"
+    execsql "ROLLBACK to one"
+    signature
+  } $::sig(one)
+
+  # By this point the database is in the same state as it was at the 
+  # top of the for{} loop (everything having been rolled back by the 
+  # "ROLLBACK TO one" command above). So make a few changes to the 
+  # database and COMMIT the open transaction, so that the next iteration
+  # of the for{} loop works on a different dataset.
+  # 
+  # The transaction being committed here may have been opened normally using
+  # "BEGIN", or may have been opened using a transaction savepoint created
+  # by the "SAVEPOINT one" statement.
+  #
+  do_test savepoint2-$ii.6 {
+    execsql $SQL(4)
+    execsql COMMIT
+    sqlite3_get_autocommit db
+  } {1}
+  integrity_check savepoint2-$ii.6.1
+
+  # Check that the connection is still running in WAL mode.
+  wal_check_journal_mode savepoint2-$ii.7
+}
+
+unset -nocomplain ::sig
+unset -nocomplain SQL
+
+finish_test
diff --git a/test/savepoint4.test b/test/savepoint4.test
new file mode 100644
index 0000000000000000000000000000000000000000..f8c5b713c2fef432a24fd5bfc718a2845913db10
--- /dev/null
+++ b/test/savepoint4.test
@@ -0,0 +1,169 @@
+# 2008 December 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# $Id: savepoint4.test,v 1.7 2009/06/09 15:25:33 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !crashtest {
+  finish_test
+  return
+}
+
+proc signature {} {
+  return [db eval {SELECT count(*), md5sum(x) FROM t1}]
+}
+
+set ITERATIONS 25                   ;# Number of iterations for savepoint4-1
+set ITERATIONS2 13                  ;# Number of iterations for savepoint4-2
+expr srand(0)
+
+do_test savepoint4-1 {
+  execsql {
+    PRAGMA cache_size=10;
+    BEGIN;
+    CREATE TABLE t1(x TEXT);
+    INSERT INTO t1 VALUES(randstr(10,400));
+    INSERT INTO t1 VALUES(randstr(10,400));
+    INSERT INTO t1 SELECT randstr(10,400) FROM t1;
+    INSERT INTO t1 SELECT randstr(10,400) FROM t1;
+    INSERT INTO t1 SELECT randstr(10,400) FROM t1;
+    INSERT INTO t1 SELECT randstr(10,400) FROM t1;
+    INSERT INTO t1 SELECT randstr(10,400) FROM t1;
+    INSERT INTO t1 SELECT randstr(10,400) FROM t1;
+    INSERT INTO t1 SELECT randstr(10,400) FROM t1;
+    INSERT INTO t1 SELECT randstr(10,400) FROM t1;
+    INSERT INTO t1 SELECT randstr(10,400) FROM t1;
+    COMMIT;
+    SELECT count(*) FROM t1;
+  }
+} {1024}
+
+
+unset -nocomplain ::sig
+
+for {set ii 1} {$ii<=$ITERATIONS} {incr ii} {
+  set ::sig [signature]
+
+  for {set iDelay 1 ; set crashed 1} {$crashed} {incr iDelay} {
+
+    do_test savepoint4-1.$ii.1.$iDelay {
+      set ret [crashsql -delay $iDelay -file test.db-journal {
+        PRAGMA cache_size = 20;
+        SAVEPOINT one;
+          DELETE FROM t1 WHERE random()%2==0;
+          SAVEPOINT two;
+            INSERT INTO t1 SELECT randstr(10,10)||x FROM t1;
+           ROLLBACK TO two;
+            UPDATE t1 SET x = randstr(10, 400) WHERE random()%10;
+          RELEASE two;
+        ROLLBACK TO one;
+        RELEASE one;
+      }]
+      signature
+    } $::sig
+
+    set crashed [lindex $ret 0]
+    integrity_check savepoint4-1.$ii.1.$iDelay.integrity
+  }
+
+  do_test savepoint4-1.$ii.2 {
+    execsql {
+      DELETE FROM t1 WHERE random()%10==0;
+      INSERT INTO t1 SELECT randstr(10,10)||x FROM t1 WHERE random()%9==0;
+    }
+  } {}
+}
+
+do_test savepoint4-2 {
+  execsql {
+    PRAGMA cache_size=10;
+    DROP TABLE IF EXISTS t1;
+    BEGIN;
+    CREATE TABLE t1(x TEXT);
+    CREATE INDEX i1 ON t1(x);
+    INSERT INTO t1 VALUES(randstr(10,400));
+    INSERT INTO t1 VALUES(randstr(10,400));
+    INSERT INTO t1 SELECT randstr(10,400) FROM t1;
+    INSERT INTO t1 SELECT randstr(10,400) FROM t1;
+    INSERT INTO t1 SELECT randstr(10,400) FROM t1;
+    INSERT INTO t1 SELECT randstr(10,400) FROM t1;
+    INSERT INTO t1 SELECT randstr(10,400) FROM t1;
+    INSERT INTO t1 SELECT randstr(10,400) FROM t1;
+    INSERT INTO t1 SELECT randstr(10,400) FROM t1;
+    COMMIT;
+    SELECT count(*) FROM t1;
+  }
+} {256}
+
+for {set ii 1} {$ii<=$ITERATIONS2} {incr ii} {
+  set ::sig [signature]
+  set file test.db-journal
+
+  for {set iDelay 1 ; set crashed 1} {$crashed} {incr iDelay} {
+
+    do_test savepoint4-2.$ii.1.$iDelay {
+
+      set ret [crashsql -delay $iDelay -file $file {
+        SAVEPOINT one;
+          INSERT INTO t1 SELECT * FROM t1 WHERE rowid<50;
+         ROLLBACK TO one;
+          INSERT INTO t1 SELECT * FROM t1 WHERE rowid<50;
+          SAVEPOINT two;
+            DELETE FROM t1 WHERE (random()%10)==0;
+            SAVEPOINT three;
+              DELETE FROM t1 WHERE (random()%10)==0;
+              SAVEPOINT four;
+                DELETE FROM t1 WHERE (random()%10)==0;
+          RELEASE two;
+
+          SAVEPOINT three;
+            UPDATE t1 SET x = substr(x||x, 12, 100000) WHERE (rowid%12)==0;
+            SAVEPOINT four;
+              UPDATE t1 SET x = substr(x||x, 14, 100000) WHERE (rowid%14)==0;
+           ROLLBACK TO three;
+            UPDATE t1 SET x = substr(x||x, 13, 100000) WHERE (rowid%13)==0;
+          RELEASE three;
+
+        DELETE FROM t1 WHERE rowid > (
+          SELECT rowid FROM t1 ORDER BY rowid ASC LIMIT 1 OFFSET 256
+        );
+        RELEASE one;
+      }]
+
+      set crashed [lindex $ret 0]
+      if {$crashed} {
+        signature
+      } else {
+        set ::sig
+      }
+    } $::sig
+
+    integrity_check savepoint4-2.$ii.1.$iDelay.integrity
+
+    if {$crashed == 0 && $file == "test.db-journal"} {
+      set crashed 1
+      set iDelay 0
+      set file test.db
+      set ::sig [signature]
+    }
+  }
+
+  do_test savepoint4-2.$ii.2 {
+    execsql {
+      DELETE FROM t1 WHERE random()%10==0;
+      INSERT INTO t1 SELECT randstr(10,10)||x FROM t1 WHERE random()%9==0;
+    }
+  } {}
+}
+
+finish_test
diff --git a/test/savepoint5.test b/test/savepoint5.test
new file mode 100644
index 0000000000000000000000000000000000000000..dc5268b3c366062195e1e58d8b62179207312680
--- /dev/null
+++ b/test/savepoint5.test
@@ -0,0 +1,46 @@
+# 2009 January 2
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Verify that a SAVEPOINT on a new, empty database followed by a
+# ROLLBACK TO that savepoint starts over again with another new
+# empty database.
+#
+# $Id: savepoint5.test,v 1.1 2009/01/02 21:08:09 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test savepoint5-1.1 {
+  db eval {
+    SAVEPOINT sp1;
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(1);
+    SELECT count(*) FROM sqlite_master;
+    SELECT * FROM t1;
+  }
+} {1 1}
+do_test savepoint5-1.2 {
+  db eval {
+    ROLLBACK TO sp1;
+    SELECT count(*) FROM sqlite_master;
+  }
+} {0}
+do_test savepoint5-1.3 {
+  db eval {
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(1);
+    SELECT count(*) FROM sqlite_master;
+    SELECT * FROM t1;
+  }
+} {1 1}
+
+
+finish_test
diff --git a/test/savepoint6.test b/test/savepoint6.test
new file mode 100644
index 0000000000000000000000000000000000000000..6b41ef2da9af8def1a5225632699b16cefa058a4
--- /dev/null
+++ b/test/savepoint6.test
@@ -0,0 +1,292 @@
+# 2009 January 3
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# $Id: savepoint6.test,v 1.4 2009/06/05 17:09:12 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+proc sql {zSql} {
+  if {0 && $::debug_op} {
+    puts stderr "$zSql ;"
+    flush stderr
+  }
+  uplevel db eval [list $zSql]
+  #puts stderr "$zSql ;"
+}
+
+set DATABASE_SCHEMA {
+    PRAGMA auto_vacuum = incremental;
+    CREATE TABLE t1(x, y);
+    CREATE UNIQUE INDEX i1 ON t1(x);
+    CREATE INDEX i2 ON t1(y);
+}
+
+if {0==[info exists ::G(savepoint6_iterations)]} {
+  set ::G(savepoint6_iterations) 1000
+}
+
+#--------------------------------------------------------------------------
+# In memory database state.
+#
+# ::lSavepoint is a list containing one entry for each active savepoint. The
+# first entry in the list corresponds to the most recently opened savepoint.
+# Each entry consists of two elements:
+#
+#   1. The savepoint name.
+#
+#   2. A serialized Tcl array representing the contents of table t1 at the
+#      start of the savepoint. The keys of the array are the x values. The
+#      values are the y values.
+#  
+# Array ::aEntry contains the contents of database table t1. Array keys are
+# x values, the array data values are y values.
+#
+set lSavepoint [list]
+array set aEntry [list]
+
+proc x_to_y {x} {
+  set nChar [expr int(rand()*250) + 250]
+  set str " $nChar [string repeat $x. $nChar]"
+  string range $str 1 $nChar
+}
+#--------------------------------------------------------------------------
+
+#-------------------------------------------------------------------------
+# Procs to operate on database:
+#
+#   savepoint NAME
+#   rollback  NAME
+#   release   NAME
+#
+#   insert_rows XVALUES
+#   delete_rows XVALUES
+#
+proc savepoint {zName} {
+  if {$::debug_op} { puts stderr "savepoint $zName" ; flush stderr }
+  catch { sql "SAVEPOINT $zName" }
+  lappend ::lSavepoint [list $zName [array get ::aEntry]]
+}
+
+proc rollback {zName} {
+  if {$::debug_op} { puts stderr "rollback $zName" ; flush stderr }
+  catch { sql "ROLLBACK TO $zName" }
+  for {set i [expr {[llength $::lSavepoint]-1}]} {$i>=0} {incr i -1} {
+    set zSavepoint [lindex $::lSavepoint $i 0]
+    if {$zSavepoint eq $zName} {
+      unset -nocomplain ::aEntry
+      array set ::aEntry [lindex $::lSavepoint $i 1]
+
+
+      if {$i+1 < [llength $::lSavepoint]} {
+        set ::lSavepoint [lreplace $::lSavepoint [expr $i+1] end]
+      }
+      break
+    }
+  }
+}
+
+proc release {zName} {
+  if {$::debug_op} { puts stderr "release $zName" ; flush stderr }
+  catch { sql "RELEASE $zName" }
+  for {set i [expr {[llength $::lSavepoint]-1}]} {$i>=0} {incr i -1} {
+    set zSavepoint [lindex $::lSavepoint $i 0]
+    if {$zSavepoint eq $zName} {
+      set ::lSavepoint [lreplace $::lSavepoint $i end]
+      break
+    }
+  }
+
+  if {[llength $::lSavepoint] == 0} {
+    #puts stderr "-- End of transaction!!!!!!!!!!!!!"
+  }
+}
+
+proc insert_rows {lX} {
+  if {$::debug_op} { puts stderr "insert_rows $lX" ; flush stderr }
+  foreach x $lX {
+    set y [x_to_y $x]
+
+    # Update database [db]
+    sql "INSERT OR REPLACE INTO t1 VALUES($x, '$y')"
+
+    # Update the Tcl database.
+    set ::aEntry($x) $y
+  }
+}
+
+proc delete_rows {lX} {
+  if {$::debug_op} { puts stderr "delete_rows $lX" ; flush stderr }
+  foreach x $lX {
+    # Update database [db]
+    sql "DELETE FROM t1 WHERE x = $x"
+
+    # Update the Tcl database.
+    unset -nocomplain ::aEntry($x)
+  }
+}
+#-------------------------------------------------------------------------
+
+#-------------------------------------------------------------------------
+# Proc to compare database content with the in-memory representation.
+#
+#   checkdb
+#
+proc checkdb {} {
+  set nEntry [db one {SELECT count(*) FROM t1}]
+  set nEntry2 [array size ::aEntry]
+  if {$nEntry != $nEntry2} {
+    error "$nEntry entries in database, $nEntry2 entries in array"
+  }
+  db eval {SELECT x, y FROM t1} {
+    if {![info exists ::aEntry($x)]} {
+      error "Entry $x exists in database, but not in array"
+    }
+    if {$::aEntry($x) ne $y} {
+      error "Entry $x is set to {$y} in database, {$::aEntry($x)} in array"
+    }
+  }
+
+  db eval { PRAGMA integrity_check }
+}
+#-------------------------------------------------------------------------
+
+#-------------------------------------------------------------------------
+# Proc to return random set of x values.
+#
+#   random_integers
+#
+proc random_integers {nRes nRange} {
+  set ret [list]
+  for {set i 0} {$i<$nRes} {incr i} {
+    lappend ret [expr int(rand()*$nRange)]
+  }
+  return $ret
+} 
+#-------------------------------------------------------------------------
+
+set ::debug_op 0
+proc debug_ops {} {
+  set ::debug_op 1
+}
+
+proc database_op {} {
+  set i [expr int(rand()*2)] 
+  if {$i==0} {
+    insert_rows [random_integers 100 1000]
+  }
+  if {$i==1} {
+    delete_rows [random_integers 100 1000]
+    set i [expr int(rand()*3)] 
+    if {$i==0} {
+      sql {PRAGMA incremental_vacuum}
+    }
+  }
+}
+
+proc savepoint_op {} {
+  set names {one two three four five}
+  set cmds  {savepoint savepoint savepoint savepoint release rollback}
+
+  set C [lindex $cmds [expr int(rand()*6)]]
+  set N [lindex $names [expr int(rand()*5)]]
+
+  $C $N
+  return ok
+}
+
+expr srand(0)
+
+############################################################################
+############################################################################
+# Start of test cases.
+
+do_test savepoint6-1.1 {
+  sql $DATABASE_SCHEMA
+} {}
+do_test savepoint6-1.2 {
+  insert_rows {
+    497 166 230 355 779 588 394 317 290 475 362 193 805 851 564 
+    763 44 930 389 819 765 760 966 280 538 414 500 18 25 287 320 
+    30 382 751 87 283 981 429 630 974 421 270 810 405 
+  }
+
+  savepoint one
+  insert_rows 858
+  delete_rows 930
+  savepoint two
+    execsql {PRAGMA incremental_vacuum}
+    savepoint three
+      insert_rows 144
+     rollback three
+    rollback two
+  release one
+
+  execsql {SELECT count(*) FROM t1}
+} {44}
+
+foreach zSetup [list {
+  set testname normal
+  sqlite3 db test.db
+} {
+  if {[wal_is_wal_mode]} continue
+  set testname tempdb
+  sqlite3 db ""
+} {
+  if {[permutation] eq "journaltest"} {
+    continue
+  }
+  set testname nosync
+  sqlite3 db test.db
+  sql { PRAGMA synchronous = off }
+} {
+  set testname smallcache
+  sqlite3 db test.db
+  sql { PRAGMA cache_size = 10 }
+}] {
+
+  unset -nocomplain ::lSavepoint
+  unset -nocomplain ::aEntry
+
+  catch { db close }
+  forcedelete test.db test.db-wal test.db-journal
+  eval $zSetup
+  sql $DATABASE_SCHEMA
+
+  wal_set_journal_mode
+
+  do_test savepoint6-$testname.setup {
+    savepoint one
+    insert_rows [random_integers 100 1000]
+    release one
+    checkdb
+  } {ok}
+  
+  for {set i 0} {$i < $::G(savepoint6_iterations)} {incr i} {
+    do_test savepoint6-$testname.$i.1 {
+      savepoint_op
+      checkdb
+    } {ok}
+  
+    do_test savepoint6-$testname.$i.2 {
+      database_op
+      database_op
+      checkdb
+    } {ok}
+  }
+
+  wal_check_journal_mode savepoint6-$testname.walok
+}
+
+unset -nocomplain ::lSavepoint
+unset -nocomplain ::aEntry
+
+finish_test
diff --git a/test/savepoint7.test b/test/savepoint7.test
new file mode 100644
index 0000000000000000000000000000000000000000..59c3cd6cdca08d45b1aa2f8ef97437a4406c45c8
--- /dev/null
+++ b/test/savepoint7.test
@@ -0,0 +1,132 @@
+# 2012 March 31
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Focus on the interaction between RELEASE and ROLLBACK TO with
+# pending query aborts.  See ticket [27ca74af3c083f787a1c44b11fbb7c53bdbbcf1e].
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# The RELEASE of an inner savepoint should not effect pending queries.
+#
+do_test savepoint7-1.1 {
+  db eval {
+    CREATE TABLE t1(a,b,c);
+    CREATE TABLE t2(x,y,z);
+    INSERT INTO t1 VALUES(1,2,3);
+    INSERT INTO t1 VALUES(4,5,6);
+    INSERT INTO t1 VALUES(7,8,9);
+    SAVEPOINT x1;
+  }
+  db eval {SELECT * FROM t1} {
+    db eval {
+      SAVEPOINT x2;
+      CREATE TABLE IF NOT EXISTS t3(xyz);
+      INSERT INTO t2 VALUES($a,$b,$c);
+      RELEASE x2;
+    }
+  }
+  db eval {SELECT * FROM t2; RELEASE x1}
+} {1 2 3 4 5 6 7 8 9}
+
+do_test savepoint7-1.2 {
+  db eval {DELETE FROM t2;}
+  db eval {SELECT * FROM t1} {
+    db eval {
+      SAVEPOINT x2;
+      INSERT INTO t2 VALUES($a,$b,$c);
+      RELEASE x2;
+    }
+  }
+  db eval {SELECT * FROM t2;}
+} {1 2 3 4 5 6 7 8 9}
+
+do_test savepoint7-1.3 {
+  db eval {DELETE FROM t2; BEGIN;}
+  db eval {SELECT * FROM t1} {
+    db eval {
+      SAVEPOINT x2;
+      INSERT INTO t2 VALUES($a,$b,$c);
+      RELEASE x2;
+    }
+  }
+  db eval {SELECT * FROM t2; ROLLBACK;}
+} {1 2 3 4 5 6 7 8 9}
+
+# However, a ROLLBACK of an inner savepoint will abort all queries, including
+# queries in outer contexts.
+#
+do_test savepoint7-2.1 {
+  db eval {DELETE FROM t2; SAVEPOINT x1; CREATE TABLE t4(abc);}
+  set rc [catch {
+    db eval {SELECT * FROM t1} {
+      db eval {
+        SAVEPOINT x2;
+        INSERT INTO t2 VALUES($a,$b,$c);
+        ROLLBACK TO x2;
+      }
+    }
+  } msg]
+  db eval {RELEASE x1}
+  list $rc $msg [db eval {SELECT * FROM t2}]
+} {1 {abort due to ROLLBACK} {}}
+
+do_test savepoint7-2.2 {
+  db eval {DELETE FROM t2;}
+  set rc [catch {
+    db eval {SELECT * FROM t1} {
+      db eval {
+        SAVEPOINT x2;
+        CREATE TABLE t5(pqr);
+        INSERT INTO t2 VALUES($a,$b,$c);
+        ROLLBACK TO x2;
+      }
+    }
+  } msg]
+  list $rc $msg [db eval {SELECT * FROM t2}]
+} {1 {abort due to ROLLBACK} {}}
+
+# Ticket: https://www.sqlite.org/src/tktview/7f7f8026eda387d544b
+# Segfault in the in-memory journal logic triggered by a tricky
+# combination of SAVEPOINT operations.
+#
+unset -nocomplain i
+for {set i 248} {$i<=253} {incr i} {
+  do_test savepoint7-3.$i {
+    db close
+    forcedelete test.db
+    sqlite3 db test.db
+    db eval {
+      PRAGMA page_size=1024;
+      PRAGMA temp_store=MEMORY;
+      BEGIN;
+      CREATE TABLE t1(x INTEGER PRIMARY KEY, y TEXT);
+      WITH RECURSIVE c(x) AS (VALUES(1) UNION SELECT x+1 FROM c WHERE x<$::i)
+      INSERT INTO t1(x,y) SELECT x*10, printf('%04d%.800c',x,'*') FROM c;
+      SAVEPOINT one;
+        SELECT count(*) FROM t1;
+        WITH RECURSIVE c(x) AS (VALUES(1) UNION SELECT x+1 FROM c WHERE x<$::i)
+        INSERT INTO t1(x,y) SELECT x*10+1, printf('%04d%.800c',x,'*') FROM c;
+      ROLLBACK TO one;
+        SELECT count(*) FROM t1;
+        SAVEPOINT twoB;
+          WITH RECURSIVE c(x) AS (VALUES(1) UNION SELECT x+1 FROM c WHERE x<10)
+          INSERT INTO t1(x,y) SELECT x*10+2, printf('%04d%.800c',x,'*') FROM c;
+        ROLLBACK TO twoB;
+      RELEASE one;
+      COMMIT;
+    }
+  } [list $i $i]
+}
+
+
+finish_test
diff --git a/test/savepointfault.test b/test/savepointfault.test
new file mode 100644
index 0000000000000000000000000000000000000000..0329f8caa27839f17d97ad58634a26a54f537159
--- /dev/null
+++ b/test/savepointfault.test
@@ -0,0 +1,137 @@
+# 2008 December 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+source $testdir/malloc_common.tcl
+
+set testprefix savepointfault
+
+do_malloc_test 1 -sqlprep {
+  CREATE TABLE t1(a, b, c);
+  INSERT INTO t1 VALUES(1, 2, 3);
+} -sqlbody {
+  SAVEPOINT one;
+    INSERT INTO t1 VALUES(4, 5, 6);
+    SAVEPOINT two;
+      DELETE FROM t1;
+    ROLLBACK TO two;
+  RELEASE one;
+}
+
+do_malloc_test 2 -sqlprep {
+  PRAGMA cache_size = 10;
+  CREATE TABLE t1(a, b, c);
+  INSERT INTO t1 VALUES(randstr(400,400), randstr(400,400), randstr(400,400));
+  INSERT INTO t1 SELECT 
+    randstr(400,400), randstr(400,400), randstr(400,400) FROM t1;
+  INSERT INTO t1 
+    SELECT randstr(400,400), randstr(400,400), randstr(400,400) FROM t1;
+  INSERT INTO t1 
+    SELECT randstr(400,400), randstr(400,400), randstr(400,400) FROM t1;
+  INSERT INTO t1 
+    SELECT randstr(400,400), randstr(400,400), randstr(400,400) FROM t1;
+  INSERT INTO t1 
+    SELECT randstr(400,400), randstr(400,400), randstr(400,400) FROM t1;
+  INSERT INTO t1 
+    SELECT randstr(400,400), randstr(400,400), randstr(400,400) FROM t1;
+  INSERT INTO t1 
+    SELECT randstr(400,400), randstr(400,400), randstr(400,400) FROM t1;
+  INSERT INTO t1 
+    SELECT randstr(400,400), randstr(400,400), randstr(400,400) FROM t1;
+} -sqlbody {
+  PRAGMA cache_size = 10;
+  SAVEPOINT one;
+    DELETE FROM t1 WHERE rowid < 5;
+    SAVEPOINT two;
+      DELETE FROM t1 WHERE rowid > 10;
+    ROLLBACK TO two;
+  ROLLBACK TO one;
+  RELEASE one;
+}
+
+do_ioerr_test 3 -sqlprep {
+  CREATE TABLE t1(a, b, c);
+  INSERT INTO t1 VALUES(1, randstr(1000,1000), randstr(1000,1000));
+  INSERT INTO t1 VALUES(2, randstr(1000,1000), randstr(1000,1000));
+} -sqlbody {
+  BEGIN;
+    UPDATE t1 SET a = 3 WHERE a = 1;
+    SAVEPOINT one;
+      UPDATE t1 SET a = 4 WHERE a = 2;
+  COMMIT;
+} -cleanup {
+  db eval {
+    SAVEPOINT one;
+    RELEASE one;
+  }
+}
+
+# The following test does a really big savepoint rollback. One involving
+# more than 4000 pages. The idea is to get a specific sqlite3BitvecSet()
+# operation in pagerPlaybackSavepoint() to fail.
+#do_malloc_test 4 -sqlprep {
+#  BEGIN;
+#    CREATE TABLE t1(a, b);
+#    CREATE INDEX i1 ON t1(a);
+#    CREATE INDEX i2 ON t1(b);
+#    INSERT INTO t1 VALUES(randstr(500,500), randstr(500,500));        --     1
+#    INSERT INTO t1 VALUES(randstr(500,500), randstr(500,500));        --     2
+#    INSERT INTO t1 SELECT randstr(500,500), randstr(500,500) FROM t1; --     4
+#    INSERT INTO t1 SELECT randstr(500,500), randstr(500,500) FROM t1; --     8
+#    INSERT INTO t1 SELECT randstr(500,500), randstr(500,500) FROM t1; --    16
+#    INSERT INTO t1 SELECT randstr(500,500), randstr(500,500) FROM t1; --    32
+#    INSERT INTO t1 SELECT randstr(500,500), randstr(500,500) FROM t1; --    64
+#    INSERT INTO t1 SELECT randstr(500,500), randstr(500,500) FROM t1; --   128
+#    INSERT INTO t1 SELECT randstr(500,500), randstr(500,500) FROM t1; --   256
+#    INSERT INTO t1 SELECT randstr(500,500), randstr(500,500) FROM t1; --   512
+#    INSERT INTO t1 SELECT randstr(500,500), randstr(500,500) FROM t1; --  1024
+#    INSERT INTO t1 SELECT randstr(500,500), randstr(500,500) FROM t1; --  2048
+#  COMMIT;
+#  BEGIN;
+#    SAVEPOINT abc;
+#      UPDATE t1 SET a = randstr(500,500);
+#} -sqlbody {
+#    ROLLBACK TO abc;
+#}
+
+
+# Cause a specific malloc in savepoint rollback code to fail.
+#
+do_malloc_test 4 -start 7 -sqlprep {
+  PRAGMA auto_vacuum = incremental;
+  PRAGMA cache_size = 1000;
+
+  CREATE TABLE t1(a, b);
+  CREATE TABLE t2(a, b);
+  CREATE TABLE t3(a, b);
+  INSERT INTO t1 VALUES(1, randstr(500,500));
+  INSERT INTO t1 VALUES(2, randstr(500,500));
+  INSERT INTO t1 VALUES(3, randstr(500,500));
+  DELETE FROM t1;
+
+  BEGIN;
+    INSERT INTO t1 VALUES(1, randstr(500,500));
+    INSERT INTO t1 VALUES(2, randstr(500,500));
+    INSERT INTO t1 VALUES(3, randstr(500,500));
+    DROP TABLE t3;                  -- Page 5 of the database file is now free.
+    DROP TABLE t2;                  -- Page 4 of the database file is now free.
+
+    SAVEPOINT abc;
+      PRAGMA incremental_vacuum;
+} -sqlbody {
+  ROLLBACK TO abc;
+}
+
+
+finish_test
diff --git a/test/scanstatus.test b/test/scanstatus.test
new file mode 100644
index 0000000000000000000000000000000000000000..549e7fd3c8d1eef0a7cbd43df86e0f8f4c92632b
--- /dev/null
+++ b/test/scanstatus.test
@@ -0,0 +1,417 @@
+# 2014 November 1
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix scanstatus
+
+ifcapable !scanstatus {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b);
+  CREATE TABLE t2(x, y);
+  INSERT INTO t1 VALUES(1, 2);
+  INSERT INTO t1 VALUES(3, 4);
+  INSERT INTO t2 VALUES('a', 'b');
+  INSERT INTO t2 VALUES('c', 'd');
+  INSERT INTO t2 VALUES('e', 'f');
+}
+
+proc do_scanstatus_test {tn res} {
+  set stmt [db version -last-stmt-ptr]
+  set idx 0
+  set ret [list]
+  while {1} {
+    set r [sqlite3_stmt_scanstatus $stmt $idx]
+    if {[llength $r]==0} break
+    foreach v {nLoop nVisit nEst zName zExplain} {
+      lappend ret $v [dict get $r $v]
+    }
+    incr idx
+  }
+
+  uplevel [list do_test $tn [list set {} $ret] [list {*}$res]]
+}
+
+do_execsql_test 1.1a { SELECT count(*) FROM t1, t2; } 6
+do_scanstatus_test 1.1b { 
+  nLoop 1 nVisit 2 nEst 1048576.0 zName t1 zExplain {SCAN t1}
+  nLoop 2 nVisit 6 nEst 1048576.0 zName t2 zExplain {SCAN t2}
+}
+
+sqlite3_db_config db STMT_SCANSTATUS 0
+
+do_execsql_test 1.2a { SELECT count(*) FROM t1, t2; } 6
+do_scanstatus_test 1.2b { 
+}
+
+sqlite3_db_config db STMT_SCANSTATUS 1
+
+do_execsql_test 1.3 {
+  ANALYZE;
+  SELECT count(*) FROM t1, t2;
+} 6
+do_scanstatus_test 1.4 {
+  nLoop 1 nVisit 2 nEst 2.0 zName t1 zExplain {SCAN t1}
+  nLoop 2 nVisit 6 nEst 3.0 zName t2 zExplain {SCAN t2}
+}
+
+do_execsql_test 1.5 { ANALYZE }
+do_execsql_test 1.6 {
+  SELECT count(*) FROM t1, t2 WHERE t2.rowid>1;
+} 4
+do_scanstatus_test 1.7 {
+  nLoop 1 nVisit 2 nEst 2.0 zName t2 zExplain 
+  {SEARCH t2 USING INTEGER PRIMARY KEY (rowid>?)}
+  nLoop 2 nVisit 4 nEst 2.0 zName t1 zExplain {SCAN t1}
+}
+
+do_execsql_test 1.8 {
+  SELECT count(*) FROM t1, t2 WHERE t2.rowid>1;
+} 4
+
+do_scanstatus_test 1.9 {
+  nLoop 2 nVisit 4 nEst 2.0 zName t2 zExplain 
+  {SEARCH t2 USING INTEGER PRIMARY KEY (rowid>?)}
+  nLoop 4 nVisit 8 nEst 2.0 zName t1 zExplain {SCAN t1}
+}
+
+do_test 1.9 {
+  sqlite3_stmt_scanstatus_reset [db version -last-stmt-ptr]
+} {}
+
+do_scanstatus_test 1.10 {
+  nLoop 0 nVisit 0 nEst 2.0 zName t2 zExplain 
+  {SEARCH t2 USING INTEGER PRIMARY KEY (rowid>?)}
+  nLoop 0 nVisit 0 nEst 2.0 zName t1 zExplain {SCAN t1}
+}
+
+#-------------------------------------------------------------------------
+# Try a few different types of scans.
+#
+reset_db
+sqlite3_db_config db STMT_SCANSTATUS 1
+do_execsql_test 2.1 {
+  CREATE TABLE x1(i INTEGER PRIMARY KEY, j);
+  INSERT INTO x1 VALUES(1, 'one');
+  INSERT INTO x1 VALUES(2, 'two');
+  INSERT INTO x1 VALUES(3, 'three');
+  INSERT INTO x1 VALUES(4, 'four');
+  CREATE INDEX x1j ON x1(j);
+
+  SELECT * FROM x1 WHERE i=2;
+} {2 two}
+
+do_scanstatus_test 2.2 {
+  nLoop 1 nVisit 1 nEst 1.0 zName x1 
+  zExplain {SEARCH x1 USING INTEGER PRIMARY KEY (rowid=?)}
+}
+
+do_execsql_test 2.3.1 {
+  SELECT * FROM x1 WHERE j='two'
+} {2 two}
+do_scanstatus_test 2.3.2 {
+  nLoop 1 nVisit 1 nEst 10.0 zName x1j 
+  zExplain {SEARCH x1 USING COVERING INDEX x1j (j=?)}
+}
+
+do_execsql_test 2.4.1 {
+  SELECT * FROM x1 WHERE j<'two'
+} {4 four 1 one 3 three}
+do_scanstatus_test 2.4.2 {
+  nLoop 1 nVisit 3 nEst 262144.0 zName x1j 
+  zExplain {SEARCH x1 USING COVERING INDEX x1j (j<?)}
+}
+
+do_execsql_test 2.5.1 {
+  SELECT * FROM x1 WHERE j>='two'
+} {2 two}
+do_scanstatus_test 2.5.2 {
+  nLoop 1 nVisit 1 nEst 262144.0 zName x1j 
+  zExplain {SEARCH x1 USING COVERING INDEX x1j (j>?)}
+}
+
+do_execsql_test 2.6.1 {
+  SELECT * FROM x1 WHERE j BETWEEN 'three' AND 'two'
+} {3 three 2 two}
+do_scanstatus_test 2.6.2 {
+  nLoop 1 nVisit 2 nEst 16384.0 zName x1j 
+  zExplain {SEARCH x1 USING COVERING INDEX x1j (j>? AND j<?)}
+}
+
+do_execsql_test 2.7.1 {
+  CREATE TABLE x2(i INTEGER, j, k);
+  INSERT INTO x2 SELECT i, j, i || ' ' || j FROM x1;
+  CREATE INDEX x2j ON x2(j);
+  CREATE INDEX x2ij ON x2(i, j);
+  SELECT * FROM x2 WHERE j BETWEEN 'three' AND 'two'
+} {3 three {3 three} 2 two {2 two}}
+
+do_scanstatus_test 2.7.2 {
+  nLoop 1 nVisit 2 nEst 16384.0 zName x2j 
+  zExplain {SEARCH x2 USING INDEX x2j (j>? AND j<?)}
+}
+
+do_execsql_test 2.8.1 {
+  SELECT * FROM x2 WHERE i=1 AND j='two'
+}
+do_scanstatus_test 2.8.2 {
+  nLoop 1 nVisit 0 nEst 8.0 zName x2ij 
+  zExplain {SEARCH x2 USING INDEX x2ij (i=? AND j=?)}
+}
+
+do_execsql_test 2.9.1 {
+  SELECT * FROM x2 WHERE i=5 AND j='two'
+}
+do_scanstatus_test 2.9.2 {
+  nLoop 1 nVisit 0 nEst 8.0 zName x2ij 
+  zExplain {SEARCH x2 USING INDEX x2ij (i=? AND j=?)}
+}
+
+do_execsql_test 2.10.1 {
+  SELECT * FROM x2 WHERE i=3 AND j='three'
+} {3 three {3 three}}
+do_scanstatus_test 2.10.2 {
+  nLoop 1 nVisit 1 nEst 8.0 zName x2ij 
+  zExplain {SEARCH x2 USING INDEX x2ij (i=? AND j=?)}
+}
+
+#-------------------------------------------------------------------------
+# Try with queries that use the OR optimization.
+#
+do_execsql_test 3.1 {
+  CREATE TABLE a1(a, b, c, d);
+  CREATE INDEX a1a ON a1(a);
+  CREATE INDEX a1bc ON a1(b, c);
+
+  WITH d(x) AS (SELECT 1 UNION ALL SELECT x+1 AS n FROM d WHERE n<=100)
+  INSERT INTO a1 SELECT x, x, x, x FROM d;
+}
+
+do_execsql_test 3.2.1 {
+  SELECT d FROM a1 WHERE (a=4 OR b=13)
+} {4 13}
+do_scanstatus_test 3.2.2 {
+  nLoop 1 nVisit 1 nEst 10.0 zName a1a 
+  zExplain {SEARCH a1 USING INDEX a1a (a=?)}
+  nLoop 1 nVisit 1 nEst 10.0 zName a1bc 
+  zExplain {SEARCH a1 USING INDEX a1bc (b=?)}
+}
+
+do_execsql_test 3.2.1 {
+  SELECT count(*) FROM a1 WHERE (a BETWEEN 4 AND 12) OR (b BETWEEN 40 AND 60)
+} {30}
+do_scanstatus_test 3.2.2 {
+  nLoop 1 nVisit 9 nEst 16384.0 zName a1a 
+  zExplain {SEARCH a1 USING INDEX a1a (a>? AND a<?)}
+  nLoop 1 nVisit 21 nEst 16384.0 zName a1bc
+  zExplain {SEARCH a1 USING INDEX a1bc (b>? AND b<?)}
+}
+
+do_execsql_test 3.3.1 {
+  SELECT count(*) FROM a1 AS x, a1 AS y 
+  WHERE (x.a BETWEEN 4 AND 12) AND (y.b BETWEEN 1 AND 10)
+} {90}
+do_scanstatus_test 3.2.2 {
+  nLoop 1 nVisit 10 nEst 16384.0 zName a1bc 
+  zExplain {SEARCH y USING COVERING INDEX a1bc (b>? AND b<?)}
+  nLoop 10 nVisit 90 nEst 16384.0 zName a1a
+  zExplain {SEARCH x USING COVERING INDEX a1a (a>? AND a<?)}
+}
+
+do_execsql_test 3.4.1 {
+  SELECT count(*) FROM a1 WHERE a IN (1, 5, 10, 15);
+} {4}
+do_scanstatus_test 3.4.2 {
+  nLoop 1 nVisit 4 nEst 40.0 zName a1a 
+  zExplain {SEARCH a1 USING COVERING INDEX a1a (a=?)}
+}
+
+do_execsql_test 3.4.1 {
+  SELECT count(*) FROM a1 WHERE rowid IN (1, 5, 10, 15);
+} {4}
+do_scanstatus_test 3.4.2 {
+  nLoop 1 nVisit 4 nEst 4.0 zName a1
+  zExplain {SEARCH a1 USING INTEGER PRIMARY KEY (rowid=?)}
+}
+
+#-------------------------------------------------------------------------
+# Test that scanstatus() data is not available for searches performed
+# by triggers.
+#
+# It is available for searches performed as part of FK processing, but 
+# not FK action processing.
+#
+do_execsql_test 4.0 {
+  CREATE TABLE t1(a, b, c);
+  CREATE TABLE t2(x PRIMARY KEY, y, z);
+  CREATE TRIGGER tr1 AFTER INSERT ON t1 BEGIN
+    SELECT * FROM t2 WHERE x BETWEEN 20 AND 40;
+  END;
+  WITH d(x) AS (SELECT 1 UNION ALL SELECT x+1 AS n FROM d WHERE n<=100)
+  INSERT INTO t2 SELECT x, x*2, x*3 FROM d;
+}
+
+do_execsql_test    4.1.1 { INSERT INTO t1 VALUES(1, 2, 3); }
+do_scanstatus_test 4.1.2 {}
+
+do_execsql_test 4.2 {
+  CREATE TABLE p1(x PRIMARY KEY);
+  INSERT INTO p1 VALUES(1), (2), (3), (4);
+  CREATE TABLE c1(y REFERENCES p1);
+  INSERT INTO c1 VALUES(1), (2), (3);
+  PRAGMA foreign_keys=on;
+}
+do_execsql_test    4.2.1 { DELETE FROM p1 WHERE x=4 }
+do_scanstatus_test 4.2.2 { 
+  nLoop 1 nVisit 1 nEst 1.0 zName sqlite_autoindex_p1_1 
+  zExplain {SEARCH p1 USING INDEX sqlite_autoindex_p1_1 (x=?)}
+
+  nLoop 1 nVisit 3 nEst 262144.0 zName c1 zExplain {SCAN c1}
+}
+
+#-------------------------------------------------------------------------
+# Further tests of different scan types.
+#
+reset_db
+sqlite3_db_config db STMT_SCANSTATUS 1
+proc tochar {i} {
+  set alphabet {a b c d e f g h i j k l m n o p q r s t u v w x y z}
+  return [lindex $alphabet [expr $i % [llength $alphabet]]]
+}
+db func tochar tochar
+do_execsql_test 5.0 {
+  CREATE TABLE t1(a PRIMARY KEY, b, c);
+  INSERT INTO t1 VALUES(0, 1, 'a');
+  INSERT INTO t1 VALUES(1, 0, 'b');
+  INSERT INTO t1 VALUES(2, 1, 'c');
+  INSERT INTO t1 VALUES(3, 0, 'd');
+  INSERT INTO t1 VALUES(4, 1, 'e');
+  INSERT INTO t1 VALUES(5, 0, 'a');
+  INSERT INTO t1 VALUES(6, 1, 'b');
+  INSERT INTO t1 VALUES(7, 0, 'c');
+  INSERT INTO t1 VALUES(8, 1, 'd');
+  INSERT INTO t1 VALUES(9, 0, 'e');
+  CREATE INDEX t1bc ON t1(b, c);
+
+  CREATE TABLE t2(x, y);
+  CREATE INDEX t2xy ON t2(x, y);
+  WITH data(i, x, y) AS (
+    SELECT 0, 0, tochar(0) 
+    UNION ALL
+    SELECT i+1, (i+1)%2, tochar(i+1) FROM data WHERE i<500
+  ) INSERT INTO t2 SELECT x, y FROM data;
+
+  CREATE TABLE t3(x, y);
+  INSERT INTO t3 SELECT * FROM t2;
+
+  ANALYZE;
+}
+
+do_execsql_test 5.1.1 {
+  SELECT count(*) FROM t1 WHERE a IN (SELECT b FROM t1 AS ii)
+} {2}
+ifcapable stat4 {
+  do_scanstatus_test 5.1.2 { 
+    nLoop 1 nVisit 10 nEst 10.0 zName t1
+    zExplain {SCAN ii}
+    nLoop 1 nVisit 2 nEst 8.0 zName sqlite_autoindex_t1_1
+    zExplain {SEARCH t1 USING COVERING INDEX sqlite_autoindex_t1_1 (a=?)}
+  }
+}
+
+do_execsql_test 5.2.1 {
+  SELECT count(*) FROM t1 WHERE a IN (0, 1)
+} {2}
+do_scanstatus_test 5.2.2 { 
+  nLoop 1 nVisit 2 nEst 2.0 zName sqlite_autoindex_t1_1
+  zExplain {SEARCH t1 USING COVERING INDEX sqlite_autoindex_t1_1 (a=?)}
+}
+
+do_eqp_test 5.3.1 {
+  SELECT count(*) FROM t2 WHERE y = 'j';
+} {SEARCH t2 USING COVERING INDEX t2xy (ANY(x) AND y=?)}
+do_execsql_test 5.3.2 {
+  SELECT count(*) FROM t2 WHERE y = 'j';
+} {19}
+do_scanstatus_test 5.3.3 { 
+  nLoop 1 nVisit 19 nEst 56.0 zName t2xy zExplain
+  {SEARCH t2 USING COVERING INDEX t2xy (ANY(x) AND y=?)}
+}
+
+ifcapable stat4 {
+  do_eqp_test 5.4.1 {
+    SELECT count(*) FROM t1, t2 WHERE y = c;
+  } {
+    QUERY PLAN
+      |--SCAN t1
+      `--SEARCH t2 USING COVERING INDEX t2xy (ANY(x) AND y=?)
+  }
+  do_execsql_test 5.4.2 {
+    SELECT count(*) FROM t1, t2 WHERE y = c;
+  } {200}
+  do_scanstatus_test 5.4.3 { 
+    nLoop 1 nVisit 10 nEst 10.0 zName t1
+      zExplain {SCAN t1}
+    nLoop 10 nVisit 200 nEst 56.0 zName t2xy 
+      zExplain {SEARCH t2 USING COVERING INDEX t2xy (ANY(x) AND y=?)}
+  }
+}
+
+do_eqp_test 5.5.1 {
+  SELECT count(*) FROM t1, t3 WHERE y = c;
+} {
+  QUERY PLAN
+  |--SCAN t3
+  |--BLOOM FILTER ON t1 (c=?)
+  `--SEARCH t1 USING AUTOMATIC COVERING INDEX (c=?)
+}
+do_execsql_test 5.5.2 {
+  SELECT count(*) FROM t1, t3 WHERE y = c;
+} {200}
+do_scanstatus_test 5.5.3 { 
+  nLoop 1 nVisit 501 nEst 480.0 zName t3 zExplain {SCAN t3}
+  nLoop 501 nVisit 200 nEst 20.0 zName auto-index zExplain
+  {SEARCH t1 USING AUTOMATIC COVERING INDEX (c=?)}
+}
+
+#-------------------------------------------------------------------------
+# Virtual table scans
+#
+ifcapable fts3 {
+  do_execsql_test 6.0 {
+    CREATE VIRTUAL TABLE ft1 USING fts4;
+    INSERT INTO ft1 VALUES('a d c f g h e i f c');
+    INSERT INTO ft1 VALUES('g c h b g b f f f g');
+    INSERT INTO ft1 VALUES('h h c c h f a e d d');
+    INSERT INTO ft1 VALUES('e j i j i e b c f g');
+    INSERT INTO ft1 VALUES('g f b g j c h a d f');
+    INSERT INTO ft1 VALUES('j i a e g f a i a c');
+    INSERT INTO ft1 VALUES('f d g g j j c a h g');
+    INSERT INTO ft1 VALUES('b d h a d j j j b i');
+    INSERT INTO ft1 VALUES('j e a b j e c b c i');
+    INSERT INTO ft1 VALUES('a d e f b j j c g d');
+  }
+  do_execsql_test 6.1.1 {
+    SELECT count(*) FROM ft1 WHERE ft1 MATCH 'd'
+  } {6}
+  do_scanstatus_test 6.1.2 { 
+    nLoop 1 nVisit 6 nEst 24.0 zName ft1 zExplain 
+    {SCAN ft1 VIRTUAL TABLE INDEX 3:}
+  }
+}
+
+
+finish_test
diff --git a/test/scanstatus2.test b/test/scanstatus2.test
new file mode 100644
index 0000000000000000000000000000000000000000..c94db88f236f4206692545571933526c2ea8c1ac
--- /dev/null
+++ b/test/scanstatus2.test
@@ -0,0 +1,345 @@
+# 2022 December 5
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix scanstatus2
+
+ifcapable !scanstatus {
+  finish_test
+  return
+}
+
+sqlite3_db_config db STMT_SCANSTATUS 1
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b);
+  CREATE TABLE t2(x, y);
+  INSERT INTO t1 VALUES(1, 2);
+  INSERT INTO t1 VALUES(3, 4);
+  INSERT INTO t2 VALUES('a', 'b');
+  INSERT INTO t2 VALUES('c', 'd');
+  INSERT INTO t2 VALUES('e', 'f');
+}
+
+proc do_zexplain_test {v2 tn sql res} {
+  db eval $sql
+  set stmt [db version -last-stmt-ptr]
+  set idx 0
+  set ret [list]
+
+  set cmd sqlite3_stmt_scanstatus
+  set f [list]
+  if {$v2} { lappend f complex }
+
+  while {1} {
+    set r [sqlite3_stmt_scanstatus -flags $f $stmt $idx]
+    if {[llength $r]==0} break
+    lappend ret [dict get $r zExplain]
+    incr idx
+  }
+  uplevel [list do_test $tn [list set {} $ret] [list {*}$res]]
+}
+
+proc get_cycles {stmt} {
+  set r [sqlite3_stmt_scanstatus $stmt -1]
+  dict get $r nCycle
+}
+
+proc foreach_scan {varname stmt body {debug 0}} {
+  upvar $varname var
+  for {set ii 0} {1} {incr ii} {
+    set f "complex"
+    if {$debug} { set f "complex debug" }
+    set r [sqlite3_stmt_scanstatus -flags $f $stmt $ii]
+    if {[llength $r]==0} break
+    array set var $r
+    uplevel $body
+  }
+}
+
+proc get_eqp_graph {stmt iPar nIndent} {
+  set res ""
+  foreach_scan A $stmt {
+    if {$A(iParentId)==$iPar} {
+      set txt $A(zExplain)
+      if {$A(nCycle)>=0} {
+        append txt " (nCycle=$A(nCycle))"
+      }
+      append res "[string repeat - $nIndent]$txt\n"
+      append res [get_eqp_graph $stmt $A(iSelectId) [expr $nIndent+2]]
+    }
+  }
+  set res
+}
+
+proc get_graph {stmt} {
+  set nCycle [get_cycles $stmt]
+  set res "QUERY (nCycle=$nCycle)\n"
+  append res [get_eqp_graph $stmt 0 2]
+}
+
+proc do_graph_test {tn sql res} {
+  db eval $sql
+  set stmt [db version -last-stmt-ptr]
+  set graph [string trim [get_graph $stmt]]
+
+  set graph [regsub -all {nCycle=[0-9]+} $graph nCycle=nnn]
+  uplevel [list do_test $tn [list set {} $graph] [string trim $res]]
+}
+
+proc puts_graph {sql} {
+  db eval $sql
+  set stmt [db version -last-stmt-ptr]
+  puts [string trim [get_graph $stmt]]
+}
+
+proc puts_debug_info {sql} {
+  db eval $sql
+  set stmt [db version -last-stmt-ptr]
+  foreach_scan X $stmt {
+    puts -nonewline "$X(debug_explain) $X(zExplain): "
+    puts -nonewline "loop=$X(debug_loop) visit=$X(debug_visit) "
+    puts            "csr=$X(debug_csr) range=$X(debug_range)"
+  } 1
+}
+
+do_zexplain_test 0 1.1 {
+  SELECT (SELECT a FROM t1 WHERE b=x) FROM t2 WHERE y=2
+} {
+  {SCAN t2}
+  {SCAN t1}
+}
+do_zexplain_test 1 1.2 {
+  SELECT (SELECT a FROM t1 WHERE b=x) FROM t2 WHERE y=2
+} {
+  {SCAN t2}
+  {CORRELATED SCALAR SUBQUERY 1}
+  {SCAN t1}
+}
+
+do_graph_test 1.3 {
+  SELECT (SELECT a FROM t1 WHERE b=x) FROM t2 WHERE y=2
+} {
+QUERY (nCycle=nnn)
+--SCAN t2 (nCycle=nnn)
+--CORRELATED SCALAR SUBQUERY 1 (nCycle=nnn)
+----SCAN t1 (nCycle=nnn)
+}
+
+do_graph_test 1.4 {
+  WITH v2(x,y) AS MATERIALIZED (
+    SELECT x,y FROM t2
+  )
+  SELECT * FROM t1, v2 ORDER BY y;
+} {
+QUERY (nCycle=nnn)
+--MATERIALIZE v2 (nCycle=nnn)
+----SCAN t2 (nCycle=nnn)
+--SCAN t1 (nCycle=nnn)
+--SCAN v2 (nCycle=nnn)
+--USE TEMP B-TREE FOR ORDER BY (nCycle=nnn)
+}
+
+#-------------------------------------------------------------------------
+ifcapable fts5 {
+  reset_db
+  sqlite3_db_config db STMT_SCANSTATUS 1
+  do_execsql_test 2.0 {
+    CREATE VIRTUAL TABLE ft USING fts5(a);
+    INSERT INTO ft VALUES('abc');
+    INSERT INTO ft VALUES('def');
+    INSERT INTO ft VALUES('ghi');
+  }
+  
+  do_graph_test 2.1 {
+    SELECT * FROM ft('def')
+  } {
+QUERY (nCycle=nnn)
+--SCAN ft VIRTUAL TABLE INDEX 0:M1 (nCycle=nnn)
+  }
+}
+
+#-------------------------------------------------------------------------
+reset_db
+sqlite3_db_config db STMT_SCANSTATUS 1
+do_execsql_test 3.0 {
+  CREATE TABLE x1(a, b);
+  CREATE TABLE x2(c, d);
+
+  WITH s(i) AS (SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<1000)
+  INSERT INTO x1 SELECT i, i FROM s;
+  INSERT INTO x2 SELECT a, b FROM x1;
+}
+
+do_graph_test 2.1 {
+  SELECT * FROM x1, x2 WHERE c=+a;
+} {
+QUERY (nCycle=nnn)
+--SCAN x1 (nCycle=nnn)
+--CREATE AUTOMATIC INDEX ON x2(c, d) (nCycle=nnn)
+--BLOOM FILTER ON x2 (c=?)
+--SEARCH x2 USING AUTOMATIC COVERING INDEX (c=?) (nCycle=nnn)
+}
+
+#-------------------------------------------------------------------------
+reset_db
+sqlite3_db_config db STMT_SCANSTATUS 1
+do_execsql_test 4.0 {
+  CREATE TABLE rt1 (id INTEGER PRIMARY KEY, x1, x2);
+  CREATE TABLE rt2 (id, x1, x2);
+}
+
+do_graph_test 4.1 {
+  SELECT * FROM rt1, rt2 WHERE rt1.id%2 AND rt2.x1=rt1.x1;
+} {
+QUERY (nCycle=nnn)
+--SCAN rt1 (nCycle=nnn)
+--CREATE AUTOMATIC INDEX ON rt2(x1, id, x2) (nCycle=nnn)
+--BLOOM FILTER ON rt2 (x1=?)
+--SEARCH rt2 USING AUTOMATIC COVERING INDEX (x1=?) (nCycle=nnn)
+}
+
+do_graph_test 4.2 {
+  SELECT rt2.id FROM rt1, rt2 WHERE rt1.id%2 AND rt2.x1=rt1.x1;
+} {
+QUERY (nCycle=nnn)
+--SCAN rt1 (nCycle=nnn)
+--CREATE AUTOMATIC INDEX ON rt2(x1, id) (nCycle=nnn)
+--BLOOM FILTER ON rt2 (x1=?)
+--SEARCH rt2 USING AUTOMATIC COVERING INDEX (x1=?) (nCycle=nnn)
+}
+
+do_graph_test 4.3 {
+  SELECT rt2.id FROM rt1, rt2 WHERE rt1.id%2 AND (rt2.x1+1)=(rt1.x1+1);
+} {
+QUERY (nCycle=nnn)
+--SCAN rt1 (nCycle=nnn)
+--SCAN rt2 (nCycle=nnn)
+}
+
+do_graph_test 4.4 {
+  SELECT rt2.id FROM rt1, rt2 WHERE rt1.id%2 AND rt2.x1=(rt1.x1+1) AND rt2.id>5;
+} {
+QUERY (nCycle=nnn)
+--SCAN rt1 (nCycle=nnn)
+--CREATE AUTOMATIC INDEX ON rt2(x1, id) WHERE <expr> (nCycle=nnn)
+--BLOOM FILTER ON rt2 (x1=?)
+--SEARCH rt2 USING AUTOMATIC PARTIAL COVERING INDEX (x1=?) (nCycle=nnn)
+}
+
+do_graph_test 4.5 {
+  SELECT v1.cnt FROM rt1, (
+    SELECT count(*) AS cnt, rt2.x1 AS x1 FROM rt2 GROUP BY x1
+  ) AS v1 WHERE rt1.x1=v1.x1
+} {
+QUERY (nCycle=nnn)
+--CO-ROUTINE v1
+----SCAN rt2 (nCycle=nnn)
+----USE TEMP B-TREE FOR GROUP BY (nCycle=nnn)
+--SCAN rt1 (nCycle=nnn)
+--CREATE AUTOMATIC INDEX ON v1(x1, cnt) (nCycle=nnn)
+--BLOOM FILTER ON v1 (x1=?)
+--SEARCH v1 USING AUTOMATIC COVERING INDEX (x1=?) (nCycle=nnn)
+}
+
+#-------------------------------------------------------------------------
+reset_db
+
+ifcapable trace { 
+  do_execsql_test 5.0 {
+    CREATE TABLE t1(x, y);
+    CREATE TRIGGER tr1 AFTER DELETE ON t1 BEGIN
+      SELECT 1;
+    END;
+    INSERT INTO t1 VALUES(1, 2);
+  }
+  
+  proc trace {stmt sql} {
+    array set A [sqlite3_stmt_scanstatus -flags complex [format %llx $stmt] 0]
+    lappend ::trace_explain $A(zExplain)
+  }
+  db trace_v2 trace 
+  
+  set ::trace_explain [list]
+  do_execsql_test 5.1 {
+    DELETE FROM t1 WHERE x=1;
+  }
+  
+  do_test 5.2 {
+    set ::trace_explain
+  } {{SCAN t1} {SCAN t1} {SCAN t1}}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+sqlite3_db_config db STMT_SCANSTATUS 1
+
+do_execsql_test 6.0 {
+  CREATE TABLE t1(a, b);
+  INSERT INTO t1 VALUES(1, 'one');
+  INSERT INTO t1 VALUES(2, 'two');
+  INSERT INTO t1 VALUES(3, 'three');
+  INSERT INTO t1 VALUES(4, 'four');
+  INSERT INTO t1 VALUES(5, 'five');
+  INSERT INTO t1 VALUES(6, 'six');
+  INSERT INTO t1 VALUES(7, 'seven');
+  INSERT INTO t1 VALUES(8, 'eight');
+}
+
+do_graph_test 6.1 {
+  SELECT (a % 2), group_concat(b) FROM t1 GROUP BY 1
+} {
+QUERY (nCycle=nnn)
+--SCAN t1 (nCycle=nnn)
+--USE TEMP B-TREE FOR GROUP BY (nCycle=nnn)
+}
+
+set sql {
+  WITH xy(x, y) AS ( SELECT (a % 2), group_concat(b) FROM t1 GROUP BY 1)
+  SELECT * FROM xy WHERE x=1
+}
+do_graph_test 6.2 $sql {
+QUERY (nCycle=nnn)
+--CO-ROUTINE xy
+----SCAN t1 (nCycle=nnn)
+----USE TEMP B-TREE FOR GROUP BY (nCycle=nnn)
+--SCAN xy (nCycle=nnn)
+}
+
+do_graph_test 6.3 {
+  WITH xy(x, y) AS ( SELECT (a % 2), group_concat(b) FROM t1 GROUP BY 1)
+  SELECT * FROM xy, xy AS xy2
+} {
+QUERY (nCycle=nnn)
+--MATERIALIZE xy (nCycle=nnn)
+----SCAN t1 (nCycle=nnn)
+----USE TEMP B-TREE FOR GROUP BY (nCycle=nnn)
+--SCAN xy (nCycle=nnn)
+--SCAN xy2 (nCycle=nnn)
+}
+
+#-------------------------------------------------------------------------
+reset_db
+
+# Check that an OOB parameter (45) does not cause asan or valgrind errors.
+#
+do_test 7.0 {
+  db eval {SELECT * FROM sqlite_schema}
+  set stmt [db version -last-stmt-ptr]
+  sqlite3_stmt_scanstatus -flags complex $stmt 1000000
+} {}
+
+#explain_i { SELECT (a % 2), group_concat(b) FROM t1 GROUP BY 1 }
+#puts_debug_info { SELECT (a % 2), group_concat(b) FROM t1 GROUP BY 1 }
+
+finish_test
diff --git a/test/schema.test b/test/schema.test
new file mode 100644
index 0000000000000000000000000000000000000000..c7daef20bac0a25ecc8462dfdaf2d7db97f35453
--- /dev/null
+++ b/test/schema.test
@@ -0,0 +1,403 @@
+# 2005 Jan 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file tests the various conditions under which an SQLITE_SCHEMA
+# error should be returned.
+#
+# $Id: schema.test,v 1.9 2009/02/04 17:40:58 drh Exp $
+
+#---------------------------------------------------------------------
+# When any of the following types of SQL statements or actions are 
+# executed, all pre-compiled statements are invalidated. An attempt
+# to execute an invalidated statement always returns SQLITE_SCHEMA.
+#
+# CREATE/DROP TABLE...................................schema-1.*
+# CREATE/DROP VIEW....................................schema-2.*
+# CREATE/DROP TRIGGER.................................schema-3.*
+# CREATE/DROP INDEX...................................schema-4.*
+# DETACH..............................................schema-5.*
+# Deleting a user-function............................schema-6.*
+# Deleting a collation sequence.......................schema-7.*
+# Setting or changing the authorization function......schema-8.*
+# Rollback of a DDL statement.........................schema-12.*
+#
+# Test cases schema-9.* and schema-10.* test some specific bugs
+# that came up during development.
+#
+# Test cases schema-11.* test that it is impossible to delete or
+# change a collation sequence or user-function while SQL statements
+# are executing. Adding new collations or functions is allowed.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test schema-1.1 {
+  set ::STMT [sqlite3_prepare $::DB {SELECT * FROM sqlite_master} -1 TAIL]
+  execsql {
+    CREATE TABLE abc(a, b, c);
+  }
+  sqlite3_step $::STMT
+} {SQLITE_ERROR}
+do_test schema-1.2 {
+  sqlite3_finalize $::STMT
+} {SQLITE_SCHEMA}
+do_test schema-1.3 {
+  set ::STMT [sqlite3_prepare $::DB {SELECT * FROM sqlite_master} -1 TAIL]
+  execsql {
+    DROP TABLE abc;
+  }
+  sqlite3_step $::STMT
+} {SQLITE_ERROR}
+do_test schema-1.4 {
+  sqlite3_finalize $::STMT
+} {SQLITE_SCHEMA}
+
+ifcapable view {
+  do_test schema-2.1 {
+    set ::STMT [sqlite3_prepare $::DB {SELECT * FROM sqlite_master} -1 TAIL]
+    execsql {
+      CREATE VIEW v1 AS SELECT * FROM sqlite_master;
+    }
+    sqlite3_step $::STMT
+  } {SQLITE_ERROR}
+  do_test schema-2.2 {
+    sqlite3_finalize $::STMT
+  } {SQLITE_SCHEMA}
+  do_test schema-2.3 {
+    set ::STMT [sqlite3_prepare $::DB {SELECT * FROM sqlite_master} -1 TAIL]
+    execsql {
+      DROP VIEW v1;
+    }
+    sqlite3_step $::STMT
+  } {SQLITE_ERROR}
+  do_test schema-2.4 {
+    sqlite3_finalize $::STMT
+  } {SQLITE_SCHEMA}
+}
+
+ifcapable trigger {
+  do_test schema-3.1 {
+    execsql {
+      CREATE TABLE abc(a, b, c);
+    }
+    set ::STMT [sqlite3_prepare $::DB {SELECT * FROM sqlite_master} -1 TAIL]
+    execsql {
+      CREATE TRIGGER abc_trig AFTER INSERT ON abc BEGIN
+        SELECT 1, 2, 3;
+      END;
+    }
+    sqlite3_step $::STMT
+  } {SQLITE_ERROR}
+  do_test schema-3.2 {
+    sqlite3_finalize $::STMT
+  } {SQLITE_SCHEMA}
+  do_test schema-3.3 {
+    set ::STMT [sqlite3_prepare $::DB {SELECT * FROM sqlite_master} -1 TAIL]
+    execsql {
+      DROP TRIGGER abc_trig;
+    }
+    sqlite3_step $::STMT
+  } {SQLITE_ERROR}
+  do_test schema-3.4 {
+    sqlite3_finalize $::STMT
+  } {SQLITE_SCHEMA}
+}
+
+do_test schema-4.1 {
+  catchsql {
+    CREATE TABLE abc(a, b, c);
+  }
+  set ::STMT [sqlite3_prepare $::DB {SELECT * FROM sqlite_master} -1 TAIL]
+  execsql {
+    CREATE INDEX abc_index ON abc(a);
+  }
+  sqlite3_step $::STMT
+} {SQLITE_ERROR}
+do_test schema-4.2 {
+  sqlite3_finalize $::STMT
+} {SQLITE_SCHEMA}
+do_test schema-4.3 {
+  set ::STMT [sqlite3_prepare $::DB {SELECT * FROM sqlite_master} -1 TAIL]
+  execsql {
+    DROP INDEX abc_index;
+  }
+  sqlite3_step $::STMT
+} {SQLITE_ERROR}
+do_test schema-4.4 {
+  sqlite3_finalize $::STMT
+} {SQLITE_SCHEMA}
+
+#---------------------------------------------------------------------
+# Tests 5.1 to 5.4 check that prepared statements are invalidated when
+# a database is DETACHed (but not when one is ATTACHed).
+#
+ifcapable attach {
+  do_test schema-5.1 {
+    set sql {SELECT * FROM abc;}
+    set ::STMT [sqlite3_prepare $::DB $sql -1 TAIL]
+    execsql {
+      ATTACH 'test2.db' AS aux;
+    }
+    sqlite3_step $::STMT
+  } {SQLITE_DONE}
+  do_test schema-5.2 {
+    sqlite3_reset $::STMT
+  } {SQLITE_OK}
+  do_test schema-5.3 {
+    execsql {
+      DETACH aux;
+    }
+    sqlite3_step $::STMT
+  } {SQLITE_ERROR}
+  do_test schema-5.4 {
+    sqlite3_finalize $::STMT
+  } {SQLITE_SCHEMA}
+}
+
+#---------------------------------------------------------------------
+# Tests 6.* check that prepared statements are invalidated when
+# a user-function is deleted (but not when one is added).
+do_test schema-6.1 {
+  set sql {SELECT * FROM abc;}
+  set ::STMT [sqlite3_prepare $::DB $sql -1 TAIL]
+  db function hello_function {}
+  sqlite3_step $::STMT
+} {SQLITE_DONE}
+do_test schema-6.2 {
+  sqlite3_reset $::STMT
+} {SQLITE_OK}
+do_test schema-6.3 {
+  sqlite_delete_function $::DB hello_function
+  sqlite3_step $::STMT
+} {SQLITE_ERROR}
+do_test schema-6.4 {
+  sqlite3_finalize $::STMT
+} {SQLITE_SCHEMA}
+
+#---------------------------------------------------------------------
+# Tests 7.* check that prepared statements are invalidated when
+# a collation sequence is deleted (but not when one is added).
+#
+ifcapable utf16 {
+  do_test schema-7.1 {
+    set sql {SELECT * FROM abc;}
+    set ::STMT [sqlite3_prepare $::DB $sql -1 TAIL]
+    add_test_collate $::DB 1 1 1
+    sqlite3_step $::STMT
+  } {SQLITE_DONE}
+  do_test schema-7.2 {
+    sqlite3_reset $::STMT
+  } {SQLITE_OK}
+  do_test schema-7.3 {
+    add_test_collate $::DB 0 0 0 
+    sqlite3_step $::STMT
+  } {SQLITE_ERROR}
+  do_test schema-7.4 {
+    sqlite3_finalize $::STMT
+  } {SQLITE_SCHEMA}
+}
+
+#---------------------------------------------------------------------
+# Tests 8.1 and 8.2 check that prepared statements are invalidated when
+# the authorization function is set to a non-null function.  Tests 8.11
+# and 8.12 verify that no invalidations occur when the authorizer is
+# cleared.
+#
+ifcapable auth {
+  proc noop_auth {args} {return SQLITE_OK}
+  do_test schema-8.1 {
+    set ::STMT [sqlite3_prepare $::DB {SELECT * FROM sqlite_master} -1 TAIL]
+    db auth noop_auth
+    sqlite3_step $::STMT
+  } {SQLITE_ERROR}
+  do_test schema-8.2 {
+    sqlite3_finalize $::STMT
+  } {SQLITE_SCHEMA}
+  do_test schema-8.11 {
+    set ::STMT [sqlite3_prepare $::DB {SELECT * FROM sqlite_master} -1 TAIL]
+    db auth {}
+    sqlite3_step $::STMT
+  } {SQLITE_ROW}
+  do_test schema-8.12 {
+    sqlite3_finalize $::STMT
+  } {SQLITE_OK}
+
+}
+
+#---------------------------------------------------------------------
+# schema-9.1: Test that if a table is dropped by one database connection, 
+#             other database connections are aware of the schema change.
+# schema-9.2: Test that if a view is dropped by one database connection,
+#             other database connections are aware of the schema change.
+#
+do_test schema-9.1 {
+  sqlite3 db2 test.db
+  execsql {
+    DROP TABLE abc;
+  } db2
+  db2 close
+  catchsql {
+    SELECT * FROM abc;
+  }
+} {1 {no such table: abc}}
+execsql {
+  CREATE TABLE abc(a, b, c);
+}
+ifcapable view {
+  do_test schema-9.2 {
+    execsql {
+      CREATE VIEW abcview AS SELECT * FROM abc;
+    }
+    sqlite3 db2 test.db
+    execsql {
+      DROP VIEW abcview;
+    } db2
+    db2 close
+    catchsql {
+      SELECT * FROM abcview;
+    }
+  } {1 {no such table: abcview}}
+}
+
+#---------------------------------------------------------------------
+# Test that if a CREATE TABLE statement fails because there are other
+# btree cursors open on the same database file it does not corrupt
+# the sqlite_master table.
+#
+# 2007-05-02: These tests have been overcome by events.  Open btree
+# cursors no longer block CREATE TABLE.  But there is no reason not
+# to keep the tests in the test suite.
+#
+do_test schema-10.1 {
+  execsql {
+    INSERT INTO abc VALUES(1, 2, 3);
+  }
+  set sql {SELECT * FROM abc}
+  set ::STMT [sqlite3_prepare $::DB $sql -1 TAIL]
+  sqlite3_step $::STMT
+} {SQLITE_ROW}
+do_test schema-10.2 {
+  catchsql {
+    CREATE TABLE t2(a, b, c);
+  }
+} {0 {}}
+do_test schema-10.3 {
+  sqlite3_finalize $::STMT
+} {SQLITE_OK}
+do_test schema-10.4 {
+  sqlite3 db2 test.db
+  execsql {
+    SELECT * FROM abc
+  } db2
+} {1 2 3}
+do_test schema-10.5 {
+  db2 close
+} {}
+
+#---------------------------------------------------------------------
+# Attempting to delete or replace a user-function or collation sequence 
+# while there are active statements returns an SQLITE_BUSY error.
+#
+# schema-11.1 - 11.4: User function.
+# schema-11.5 - 11.8: Collation sequence.
+#
+do_test schema-11.1 {
+  db function tstfunc {}
+  set sql {SELECT * FROM abc}
+  set ::STMT [sqlite3_prepare $::DB $sql -1 TAIL]
+  sqlite3_step $::STMT
+} {SQLITE_ROW}
+do_test schema-11.2 {
+  sqlite_delete_function $::DB tstfunc
+} {SQLITE_BUSY}
+do_test schema-11.3 {
+  set rc [catch {
+    db function tstfunc {}
+  } msg]
+  list $rc $msg
+} {1 {unable to delete/modify user-function due to active statements}}
+do_test schema-11.4 {
+  sqlite3_finalize $::STMT
+} {SQLITE_OK}
+do_test schema-11.5 {
+  db collate tstcollate {}
+  set sql {SELECT * FROM abc}
+  set ::STMT [sqlite3_prepare $::DB $sql -1 TAIL]
+  sqlite3_step $::STMT
+} {SQLITE_ROW}
+do_test schema-11.6 {
+  sqlite_delete_collation $::DB tstcollate
+} {SQLITE_BUSY}
+do_test schema-11.7 {
+  set rc [catch {
+    db collate tstcollate {}
+  } msg]
+  list $rc $msg
+} {1 {unable to delete/modify collation sequence due to active statements}}
+do_test schema-11.8 {
+  sqlite3_finalize $::STMT
+} {SQLITE_OK}
+
+# The following demonstrates why statements need to be expired whenever
+# there is a rollback (explicit or otherwise).
+#
+do_test schema-12.1 {
+  # Begin a transaction and create a table. This increments 
+  # the schema cookie. Then compile an SQL statement, using
+  # the current (incremented) value of the cookie.
+  execsql {
+    BEGIN;
+    CREATE TABLE t3(a, b, c);
+  }
+  set ::STMT [sqlite3_prepare $::DB "CREATE TABLE t4(a,b,c)" -1 TAIL]
+
+  # Rollback the transaction, resetting the schema cookie to the value
+  # it had at the start of this test case. Then create a table, 
+  # incrementing the schema cookie.
+  execsql {
+    ROLLBACK;
+    CREATE TABLE t4(a, b, c);
+  }
+
+  # The schema cookie now has the same value as it did when SQL statement
+  # $::STMT was prepared. So unless it has been expired, it would be
+  # possible to run the "CREATE TABLE t4" statement and create a
+  # duplicate table.
+  list [sqlite3_step $::STMT] [sqlite3_finalize $::STMT]
+} {SQLITE_ERROR SQLITE_SCHEMA}
+
+ifcapable {auth} {
+
+do_test schema-13.1 {
+  set S [sqlite3_prepare_v2 db "SELECT * FROM sqlite_master" -1 dummy]
+  db function hello hello
+  db function hello {}
+  db auth auth
+  proc auth {args} {
+    if {[lindex $args 0] == "SQLITE_READ"} {return SQLITE_DENY}
+    return SQLITE_OK
+  }
+  sqlite3_step $S
+} {SQLITE_AUTH}
+
+do_test schema-13.2 {
+  sqlite3_step $S
+} {SQLITE_AUTH}
+
+do_test schema-13.3 {
+  sqlite3_finalize $S
+} {SQLITE_AUTH}
+
+}
+
+finish_test
diff --git a/test/schema2.test b/test/schema2.test
new file mode 100644
index 0000000000000000000000000000000000000000..61d7f731d32999953652d3c193fb5acf0243987e
--- /dev/null
+++ b/test/schema2.test
@@ -0,0 +1,340 @@
+# 2006 November 08
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file tests the various conditions under which an SQLITE_SCHEMA
+# error should be returned.  This is a copy of schema.test that
+# has been altered to use sqlite3_prepare_v2 instead of sqlite3_prepare
+#
+# $Id: schema2.test,v 1.4 2009/02/04 17:40:58 drh Exp $
+
+#---------------------------------------------------------------------
+# When any of the following types of SQL statements or actions are 
+# executed, all pre-compiled statements are invalidated. An attempt
+# to execute an invalidated statement always returns SQLITE_SCHEMA.
+#
+# CREATE/DROP TABLE...................................schema2-1.*
+# CREATE/DROP VIEW....................................schema2-2.*
+# CREATE/DROP TRIGGER.................................schema2-3.*
+# CREATE/DROP INDEX...................................schema2-4.*
+# DETACH..............................................schema2-5.*
+# Deleting a user-function............................schema2-6.*
+# Deleting a collation sequence.......................schema2-7.*
+# Setting or changing the authorization function......schema2-8.*
+#
+# Test cases schema2-9.* and schema2-10.* test some specific bugs
+# that came up during development.
+#
+# Test cases schema2-11.* test that it is impossible to delete or
+# change a collation sequence or user-function while SQL statements
+# are executing. Adding new collations or functions is allowed.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test schema2-1.1 {
+  set ::STMT [sqlite3_prepare_v2 $::DB {SELECT * FROM sqlite_master} -1 TAIL]
+  execsql {
+    CREATE TABLE abc(a, b, c);
+  }
+  sqlite3_step $::STMT
+} {SQLITE_ROW}
+do_test schema2-1.2 {
+  sqlite3_finalize $::STMT
+} {SQLITE_OK}
+do_test schema2-1.3 {
+  set ::STMT [sqlite3_prepare_v2 $::DB {SELECT * FROM sqlite_master} -1 TAIL]
+  execsql {
+    DROP TABLE abc;
+  }
+  sqlite3_step $::STMT
+} {SQLITE_DONE}
+do_test schema2-1.4 {
+  sqlite3_finalize $::STMT
+} {SQLITE_OK}
+
+
+ifcapable view {
+  do_test schema2-2.1 {
+    set ::STMT [sqlite3_prepare_v2 $::DB {SELECT * FROM sqlite_master} -1 TAIL]
+    execsql {
+      CREATE VIEW v1 AS SELECT * FROM sqlite_master;
+    }
+    sqlite3_step $::STMT
+  } {SQLITE_ROW}
+  do_test schema2-2.2 {
+    sqlite3_finalize $::STMT
+  } {SQLITE_OK}
+  do_test schema2-2.3 {
+    set ::STMT [sqlite3_prepare_v2 $::DB {SELECT * FROM sqlite_master} -1 TAIL]
+    execsql {
+      DROP VIEW v1;
+    }
+    sqlite3_step $::STMT
+  } {SQLITE_DONE}
+  do_test schema2-2.4 {
+    sqlite3_finalize $::STMT
+  } {SQLITE_OK}
+}
+
+ifcapable trigger {
+  do_test schema2-3.1 {
+    execsql {
+      CREATE TABLE abc(a, b, c);
+    }
+    set ::STMT [sqlite3_prepare_v2 $::DB {SELECT * FROM sqlite_master} -1 TAIL]
+    execsql {
+      CREATE TRIGGER abc_trig AFTER INSERT ON abc BEGIN
+        SELECT 1, 2, 3;
+      END;
+    }
+    sqlite3_step $::STMT
+  } {SQLITE_ROW}
+  do_test schema2-3.2 {
+    sqlite3_finalize $::STMT
+  } {SQLITE_OK}
+  do_test schema2-3.3 {
+    set ::STMT [sqlite3_prepare_v2 $::DB {SELECT * FROM sqlite_master} -1 TAIL]
+    execsql {
+      DROP TRIGGER abc_trig;
+    }
+    sqlite3_step $::STMT
+  } {SQLITE_ROW}
+  do_test schema2-3.4 {
+    sqlite3_finalize $::STMT
+  } {SQLITE_OK}
+}
+
+do_test schema2-4.1 {
+  catchsql {
+    CREATE TABLE abc(a, b, c);
+  }
+  set ::STMT [sqlite3_prepare_v2 $::DB {SELECT * FROM sqlite_master} -1 TAIL]
+  execsql {
+    CREATE INDEX abc_index ON abc(a);
+  }
+  sqlite3_step $::STMT
+} {SQLITE_ROW}
+do_test schema2-4.2 {
+  sqlite3_finalize $::STMT
+} {SQLITE_OK}
+do_test schema2-4.3 {
+  set ::STMT [sqlite3_prepare_v2 $::DB {SELECT * FROM sqlite_master} -1 TAIL]
+  execsql {
+    DROP INDEX abc_index;
+  }
+  sqlite3_step $::STMT
+} {SQLITE_ROW}
+do_test schema2-4.4 {
+  sqlite3_finalize $::STMT
+} {SQLITE_OK}
+
+#---------------------------------------------------------------------
+# Tests 5.1 to 5.4 check that prepared statements are invalidated when
+# a database is DETACHed (but not when one is ATTACHed).
+#
+ifcapable attach {
+  do_test schema2-5.1 {
+    set sql {SELECT * FROM abc;}
+    set ::STMT [sqlite3_prepare_v2 $::DB $sql -1 TAIL]
+    execsql {
+      ATTACH 'test2.db' AS aux;
+    }
+    sqlite3_step $::STMT
+  } {SQLITE_DONE}
+  do_test schema2-5.2 {
+    sqlite3_reset $::STMT
+  } {SQLITE_OK}
+  do_test schema2-5.3 {
+    execsql {
+      DETACH aux;
+    }
+    sqlite3_step $::STMT
+  } {SQLITE_DONE}
+  do_test schema2-5.4 {
+    sqlite3_finalize $::STMT
+  } {SQLITE_OK}
+}
+
+#---------------------------------------------------------------------
+# Tests 6.* check that prepared statements are invalidated when
+# a user-function is deleted (but not when one is added).
+do_test schema2-6.1 {
+  set sql {SELECT * FROM abc;}
+  set ::STMT [sqlite3_prepare_v2 $::DB $sql -1 TAIL]
+  db function hello_function {}
+  sqlite3_step $::STMT
+} {SQLITE_DONE}
+do_test schema2-6.2 {
+  sqlite3_reset $::STMT
+} {SQLITE_OK}
+do_test schema2-6.3 {
+  sqlite_delete_function $::DB hello_function
+  sqlite3_step $::STMT
+} {SQLITE_DONE}
+do_test schema2-6.4 {
+  sqlite3_finalize $::STMT
+} {SQLITE_OK}
+
+#---------------------------------------------------------------------
+# Tests 7.* check that prepared statements are invalidated when
+# a collation sequence is deleted (but not when one is added).
+#
+ifcapable utf16 {
+  do_test schema2-7.1 {
+    set sql {SELECT * FROM abc;}
+    set ::STMT [sqlite3_prepare_v2 $::DB $sql -1 TAIL]
+    add_test_collate $::DB 1 1 1
+    sqlite3_step $::STMT
+  } {SQLITE_DONE}
+  do_test schema2-7.2 {
+    sqlite3_reset $::STMT
+  } {SQLITE_OK}
+  do_test schema2-7.3 {
+    add_test_collate $::DB 0 0 0 
+    sqlite3_step $::STMT
+  } {SQLITE_DONE}
+  do_test schema2-7.4 {
+    sqlite3_finalize $::STMT
+  } {SQLITE_OK}
+}
+
+#---------------------------------------------------------------------
+# Tests 8.1 and 8.2 check that prepared statements are invalidated when
+# the authorization function is set.
+#
+ifcapable auth {
+  do_test schema2-8.1 {
+    set ::STMT [sqlite3_prepare_v2 $::DB {SELECT * FROM sqlite_master} -1 TAIL]
+    db auth {}
+    sqlite3_step $::STMT
+  } {SQLITE_ROW}
+  do_test schema2-8.3 {
+    sqlite3_finalize $::STMT
+  } {SQLITE_OK}
+}
+
+#---------------------------------------------------------------------
+# schema2-9.1: Test that if a table is dropped by one database connection, 
+#             other database connections are aware of the schema change.
+# schema2-9.2: Test that if a view is dropped by one database connection,
+#             other database connections are aware of the schema change.
+#
+do_test schema2-9.1 {
+  sqlite3 db2 test.db
+  execsql {
+    DROP TABLE abc;
+  } db2
+  db2 close
+  catchsql {
+    SELECT * FROM abc;
+  }
+} {1 {no such table: abc}}
+execsql {
+  CREATE TABLE abc(a, b, c);
+}
+ifcapable view {
+  do_test schema2-9.2 {
+    execsql {
+      CREATE VIEW abcview AS SELECT * FROM abc;
+    }
+    sqlite3 db2 test.db
+    execsql {
+      DROP VIEW abcview;
+    } db2
+    db2 close
+    catchsql {
+      SELECT * FROM abcview;
+    }
+  } {1 {no such table: abcview}}
+}
+
+#---------------------------------------------------------------------
+# Test that if a CREATE TABLE statement fails because there are other
+# btree cursors open on the same database file it does not corrupt
+# the sqlite_master table.
+#
+# 2007-05-02: These tests have been overcome by events.  Open btree
+# cursors no longer block CREATE TABLE.  But there is no reason not
+# to keep the tests in the test suite.
+#
+do_test schema2-10.1 {
+  execsql {
+    INSERT INTO abc VALUES(1, 2, 3);
+  }
+  set sql {SELECT * FROM abc}
+  set ::STMT [sqlite3_prepare_v2 $::DB $sql -1 TAIL]
+  sqlite3_step $::STMT
+} {SQLITE_ROW}
+do_test schema2-10.2 {
+  catchsql {
+    CREATE TABLE t2(a, b, c);
+  }
+} {0 {}}
+do_test schema2-10.3 {
+  sqlite3_finalize $::STMT
+} {SQLITE_OK}
+do_test schema2-10.4 {
+  sqlite3 db2 test.db
+  execsql {
+    SELECT * FROM abc
+  } db2
+} {1 2 3}
+do_test schema2-10.5 {
+  db2 close
+} {}
+
+#---------------------------------------------------------------------
+# Attempting to delete or replace a user-function or collation sequence 
+# while there are active statements returns an SQLITE_BUSY error.
+#
+# schema2-11.1 - 11.4: User function.
+# schema2-11.5 - 11.8: Collation sequence.
+#
+do_test schema2-11.1 {
+  db function tstfunc {}
+  set sql {SELECT * FROM abc}
+  set ::STMT [sqlite3_prepare_v2 $::DB $sql -1 TAIL]
+  sqlite3_step $::STMT
+} {SQLITE_ROW}
+do_test schema2-11.2 {
+  sqlite_delete_function $::DB tstfunc
+} {SQLITE_BUSY}
+do_test schema2-11.3 {
+  set rc [catch {
+    db function tstfunc {}
+  } msg]
+  list $rc $msg
+} {1 {unable to delete/modify user-function due to active statements}}
+do_test schema2-11.4 {
+  sqlite3_finalize $::STMT
+} {SQLITE_OK}
+do_test schema2-11.5 {
+  db collate tstcollate {}
+  set sql {SELECT * FROM abc}
+  set ::STMT [sqlite3_prepare_v2 $::DB $sql -1 TAIL]
+  sqlite3_step $::STMT
+} {SQLITE_ROW}
+do_test schema2-11.6 {
+  sqlite_delete_collation $::DB tstcollate
+} {SQLITE_BUSY}
+do_test schema2-11.7 {
+  set rc [catch {
+    db collate tstcollate {}
+  } msg]
+  list $rc $msg
+} {1 {unable to delete/modify collation sequence due to active statements}}
+do_test schema2-11.8 {
+  sqlite3_finalize $::STMT
+} {SQLITE_OK}
+
+finish_test
diff --git a/test/schema3.test b/test/schema3.test
new file mode 100644
index 0000000000000000000000000000000000000000..39d4632330448bea17e5ae4ae886357eee5c72c1
--- /dev/null
+++ b/test/schema3.test
@@ -0,0 +1,103 @@
+# 2010 Jun 28
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+source $testdir/lock_common.tcl
+
+# If SQLITE_OMIT_ALTERTABLE is defined, omit this file.
+ifcapable !altertable {
+  finish_test
+  return
+}
+
+# This block tests that if one client modifies the database schema, a
+# second client updates its internal cache of the database schema before
+# executing any queries. Specifically, it does not return a "no such column"
+# or "no such table" error if the table or column in question does exist
+# but was added after the second client loaded its cache of the database
+# schema.
+#
+# Types of schema modifications:
+#
+#   1. Adding a database table.
+#   2. Adding a database view.
+#   3. Adding a database index.
+#   4. Adding a database trigger.
+#   5. Adding a column to an existing table (ALTER TABLE).
+#
+do_multiclient_test tn {
+
+  # Have connections [db1] and [db2] load the current database schema.
+  #
+  sql1 { SELECT * FROM sqlite_master }
+  sql2 { SELECT * FROM sqlite_master }
+
+  foreach {tn2 c1 c2} {
+    1  { CREATE TABLE t1(a, b) }       { SELECT * FROM t1            }
+    2  { CREATE TABLE t2(a, b) }       { UPDATE t2 SET a = b         }
+    3  { CREATE TABLE t3(a, b) }       { DELETE FROM t3              }
+    4  { CREATE TABLE t4(a, b) }       { INSERT INTO t4 VALUES(1, 2) }
+    5  { CREATE TABLE t5(a, b) }       { DROP TABLE t5 }
+    6  { CREATE TABLE t6(a, b) }       { CREATE INDEX i1 ON t6(a) }
+
+    7  { ALTER TABLE t1 ADD COLUMN c } { SELECT a, b, c FROM t1 }
+    8  { ALTER TABLE t2 ADD COLUMN c } { UPDATE t2 SET a = c }
+    9  { ALTER TABLE t2 ADD COLUMN d } { UPDATE t2 SET d = c }
+    10 { ALTER TABLE t3 ADD COLUMN c } { DELETE FROM t3 WHERE c>10 }
+    11 { ALTER TABLE t4 ADD COLUMN c } { INSERT INTO t4(a,b,c) VALUES(1,2,3) }
+    12 { ALTER TABLE t6 ADD COLUMN c } { CREATE INDEX i2 ON t6(c) }
+    13 { ALTER TABLE t6 ADD COLUMN d } { 
+         CREATE TRIGGER tr1 AFTER UPDATE OF d ON t6 BEGIN
+           SELECT 1, 2, 3;
+         END;
+    }
+
+    14 { CREATE INDEX i3 ON t1(a) }    { DROP INDEX i3 }
+    15 { CREATE INDEX i4 ON t2(a) }    {
+         SELECT * FROM t2 INDEXED BY i4 ORDER BY a
+    }
+
+    16 { CREATE TRIGGER tr2 AFTER INSERT ON t3 BEGIN SELECT 1 ; END } {
+         DROP TRIGGER tr2
+    }
+
+    17  { CREATE VIEW v1 AS SELECT * FROM t1 } { SELECT a,b,c   FROM v1 }
+    18  { ALTER TABLE t1 ADD COLUMN d        } { SELECT a,b,c,d FROM v1 }
+
+    19  { CREATE TABLE t7(a, b) } {
+          DROP TABLE IF EXISTS t7; CREATE TABLE t7(c, d);
+    }
+    20  { CREATE INDEX i5 ON t7(c, d) } {
+          DROP INDEX IF EXISTS i5; CREATE INDEX i5 ON t7(c)
+    }
+    21  { CREATE TRIGGER tr3 BEFORE DELETE ON t7 BEGIN SELECT 1, 2, 3 ; END } {
+          DROP TRIGGER IF EXISTS tr3;
+          CREATE TRIGGER tr3 AFTER INSERT ON t7 BEGIN SELECT 1, 2, 3 ; END 
+    }
+
+    22  { CREATE TABLE t8(a, b) }       {
+         CREATE TRIGGER tr4 AFTER UPDATE OF a ON t8 BEGIN
+           SELECT 1, 2, 3;
+         END;
+    }
+  } {
+    do_test schema3-1.$tn.$tn2 {
+      sql1 $c1
+      sql2 $c2
+    } {}
+  }
+}
+
+finish_test
diff --git a/test/schema4.test b/test/schema4.test
new file mode 100644
index 0000000000000000000000000000000000000000..9b794ee555bd76d041c8d0f99b525c8ba270c81b
--- /dev/null
+++ b/test/schema4.test
@@ -0,0 +1,175 @@
+# 2010 September 28
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. The
+# focus of this file is testing that a trigger may have the same
+# name as an index, view or table in the same database.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+#--------------------------------------------------------------------------
+# Test organization:
+#
+#   schema4-1.*: Dropping and creating triggers and other objects where
+#     triggers and at least on other object share a name.
+#
+#   schema4-2.*: Renaming tables where there is a trigger that shares the
+#     name of the table or one of its indices.
+#
+
+do_execsql_test schema4-1.1 {
+  CREATE TABLE log(x, a, b);
+  CREATE TABLE tbl(a, b);
+
+  CREATE TABLE t1(a, b);
+  CREATE VIEW v1 AS SELECT * FROM tbl;
+  CREATE INDEX i1 ON tbl(a);
+} {}
+
+do_execsql_test schema4-1.2 {
+  CREATE TRIGGER t1 AFTER INSERT ON tbl BEGIN
+    INSERT INTO log VALUES('after insert', new.a, new.b);
+  END;
+  CREATE TRIGGER v1 AFTER UPDATE ON tbl BEGIN
+    INSERT INTO log VALUES('after update', new.a, new.b);
+  END;
+  CREATE TRIGGER i1 AFTER DELETE ON tbl BEGIN
+    INSERT INTO log VALUES('after delete', old.a, old.b);
+  END;
+} {}
+
+do_execsql_test schema4-1.3 {
+  INSERT INTO tbl VALUES(1, 2);
+  UPDATE tbl SET b=a+b, a=a+1;
+  DELETE FROM tbl;
+
+  SELECT x, a, b FROM log;
+} {{after insert} 1 2 {after update} 2 3 {after delete} 2 3}
+
+do_execsql_test schema4-1.4 {
+  DELETE FROM log;
+
+  DROP INDEX i1;
+  DROP TABLE t1;
+  DROP VIEW v1;
+
+  INSERT INTO tbl VALUES(1, 2);
+  UPDATE tbl SET b=a+b, a=a+1;
+  DELETE FROM tbl;
+
+  SELECT x, a, b FROM log;
+} {{after insert} 1 2 {after update} 2 3 {after delete} 2 3}
+
+db close
+sqlite3 db test.db
+
+do_execsql_test schema4-1.5 {
+  DELETE FROM log;
+  INSERT INTO tbl VALUES(1, 2);
+  UPDATE tbl SET b=a+b, a=a+1;
+  DELETE FROM tbl;
+  SELECT x, a, b FROM log;
+} {{after insert} 1 2 {after update} 2 3 {after delete} 2 3}
+
+do_execsql_test schema4-1.6 {
+  CREATE TABLE t1(a, b);
+  CREATE VIEW v1 AS SELECT * FROM tbl;
+  CREATE INDEX i1 ON tbl(a);
+} {}
+
+ifcapable fts3 {
+  do_execsql_test schema4-1.7 {
+    DROP TABLE t1;
+    CREATE VIRTUAL TABLE t1 USING fts3;
+  } {}
+
+  do_execsql_test schema4-1.8 {
+    DELETE FROM log;
+    DROP TABLE t1;
+    INSERT INTO tbl VALUES(1, 2);
+    UPDATE tbl SET b=a+b, a=a+1;
+    DELETE FROM tbl;
+    SELECT x, a, b FROM log;
+  } {{after insert} 1 2 {after update} 2 3 {after delete} 2 3}
+}
+
+ifcapable altertable {
+  drop_all_tables
+  do_execsql_test schema4-2.1 {
+    CREATE TABLE log(x, a, b);
+    CREATE TABLE tbl(a, b);
+  
+    CREATE TABLE t1(a, b);
+    CREATE INDEX i1 ON t1(a, b);
+  } {}
+  
+  do_execsql_test schema4-2.2 {
+    CREATE TRIGGER t1 AFTER INSERT ON tbl BEGIN
+      INSERT INTO log VALUES('after insert', new.a, new.b);
+    END;
+    CREATE TRIGGER i1 AFTER DELETE ON tbl BEGIN
+      INSERT INTO log VALUES('after delete', old.a, old.b);
+    END;
+  } {}
+
+  do_execsql_test schema4-2.3 { ALTER TABLE t1 RENAME TO t2 } {}
+
+  do_execsql_test schema4-2.4 { 
+    INSERT INTO tbl VALUES('a', 'b');
+    DELETE FROM tbl;
+    SELECT * FROM log;
+  } {{after insert} a b {after delete} a b}
+
+  db close
+  sqlite3 db test.db
+
+  do_execsql_test schema4-2.5 { 
+    DELETE FROM log;
+    INSERT INTO tbl VALUES('c', 'd');
+    DELETE FROM tbl;
+    SELECT * FROM log;
+  } {{after insert} c d {after delete} c d}
+
+  do_execsql_test schema4-2.6 {
+    CREATE TEMP TRIGGER x1 AFTER UPDATE ON tbl BEGIN
+      INSERT INTO log VALUES('after update', new.a, new.b);
+    END;
+
+    CREATE TEMP TABLE x1(x);
+    INSERT INTO x1 VALUES(123);
+  } {}
+
+  do_execsql_test schema4-2.8 {
+    select sql from temp.sqlite_master WHERE type='table';
+  } {{CREATE TABLE x1(x)}}
+
+  do_execsql_test schema4-2.7 { ALTER TABLE tbl RENAME TO tbl2 } {}
+
+  do_execsql_test schema4-2.9 {
+    select sql from sqlite_temp_master WHERE type='table';
+  } {{CREATE TABLE x1(x)}}
+
+  do_execsql_test schema4-2.10 { 
+    DELETE FROM log;
+    INSERT INTO tbl2 VALUES('e', 'f');
+    UPDATE tbl2 SET a='g', b='h';
+    DELETE FROM tbl2;
+    SELECT * FROM log;
+  } {{after insert} e f {after update} g h {after delete} g h}
+
+  do_execsql_test schema4-2.11 {
+    INSERT INTO x1 VALUES(456);
+    SELECT * FROM x1
+  } {123 456}
+}
+
+finish_test
diff --git a/test/schema5.test b/test/schema5.test
new file mode 100644
index 0000000000000000000000000000000000000000..29df3f16f51cc9c729bc82290aa09aa1befe4d0b
--- /dev/null
+++ b/test/schema5.test
@@ -0,0 +1,69 @@
+# 2010 September 28
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file checks corner cases in the CREATE TABLE syntax to make
+# sure that legacy syntax (syntax that is disallowed according to the
+# syntax diagrams) is still accepted, so that older databases that use
+# that syntax can still be read.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Table constraints should be separated by commas, but they do not have
+# to be.
+#
+do_test schema5-1.1 {
+  db eval {
+    CREATE TABLE t1(a,b,c, PRIMARY KEY(a) UNIQUE (a) CONSTRAINT one);
+    INSERT INTO t1 VALUES(1,2,3);
+    SELECT * FROM t1;
+  }
+} {1 2 3}
+do_test schema5-1.2 {
+  catchsql {INSERT INTO t1 VALUES(1,3,4);}
+} {1 {UNIQUE constraint failed: t1.a}}
+do_test schema5-1.3 {
+  db eval {
+    DROP TABLE t1;
+    CREATE TABLE t1(a,b,c,
+        CONSTRAINT one PRIMARY KEY(a) CONSTRAINT two CHECK(b<10) UNIQUE(b)
+        CONSTRAINT three
+    );
+    INSERT INTO t1 VALUES(1,2,3);
+    SELECT * FROM t1;
+  }
+} {1 2 3}
+do_test schema5-1.4 {
+  catchsql {INSERT INTO t1 VALUES(10,11,12);}
+} {1 {CHECK constraint failed: two}}
+do_test schema5-1.5 {
+  db eval {
+    DROP TABLE t1;
+    CREATE TABLE t1(a,b,c,
+       UNIQUE(a) CONSTRAINT one,
+       PRIMARY KEY(b,c) CONSTRAINT two
+    );
+    INSERT INTO t1 VALUES(1,2,3);
+  }
+} {}
+do_test schema5-1.6 {
+  catchsql {INSERT INTO t1 VALUES(1,3,4)}
+} {1 {UNIQUE constraint failed: t1.a}}
+do_test schema5-1.7 {
+  catchsql {INSERT INTO t1 VALUES(10,2,3)}
+} {1 {UNIQUE constraint failed: t1.b, t1.c}}
+
+
+
+    
+
+finish_test
diff --git a/test/schema6.test b/test/schema6.test
new file mode 100644
index 0000000000000000000000000000000000000000..0eb8a1c4348eb9432612755868ef640b1f7216ae
--- /dev/null
+++ b/test/schema6.test
@@ -0,0 +1,164 @@
+# 2017-07-30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+# This file implements tests to show that certain CREATE TABLE statements
+# generate identical database files.  For example, changes in identifier
+# names, white-space, and formatting of the CREATE TABLE statement should
+# produce identical table content.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix schema6
+do_not_use_codec
+
+# Command:   check_same_database_content TESTNAME SQL1 SQL2 SQL3 ...
+#
+# This command creates fresh databases using SQL1 and subsequent arguments
+# and checks to make sure the content of all database files is byte-for-byte
+# identical.  Page 1 of the database files is allowed to be different, since
+# page 1 contains the sqlite_master table which is expected to vary.
+#
+proc check_same_database_content {basename args} {
+  set i 0
+  set hash {}
+  foreach sql $args {
+    catch {db close}
+    forcedelete test.db
+    sqlite3 db test.db
+    db eval $sql
+    set pgsz [db one {PRAGMA page_size}]
+    db close
+    set sz [file size test.db]
+    set thishash [md5file test.db $pgsz [expr {$sz-$pgsz}]]
+    if {$i==0} {
+      set hash $thishash
+    } else {
+      do_test $basename-$i "set x $thishash" $hash
+    }
+    incr i
+  }
+}
+
+# Command:   check_different_database_content TESTNAME SQL1 SQL2 SQL3 ...
+#
+# This command creates fresh databases using SQL1 and subsequent arguments
+# and checks to make sure the content of all database files is different
+# in ways other than on page 1.
+#
+proc check_different_database_content {basename args} {
+  set i 0
+  set hashes {}
+  foreach sql $args {
+    forcedelete test.db
+    sqlite3 db test.db
+    db eval $sql
+    set pgsz [db one {PRAGMA page_size}]
+    db close
+    set sz [file size test.db]
+    set thishash [md5file test.db $pgsz [expr {$sz-$pgsz}]]
+    set j [lsearch $hashes $thishash]
+    if {$j>=0} {
+      do_test $basename-$i "set x {$i is the same as $j}" "All are different"
+    } else {
+      do_test $basename-$i "set x {All are different}" "All are different"
+    }
+    lappend hashes $thishash
+    incr i
+  }
+}
+
+check_same_database_content 100 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b UNIQUE);
+  INSERT INTO t1(a,b) VALUES(123,'Four score and seven years ago...');
+} {
+  CREATE TABLE t1(xyz INTEGER, abc, PRIMARY KEY(xyz), UNIQUE(abc));
+  INSERT INTO t1(xyz,abc) VALUES(123,'Four score and seven years ago...');
+} {
+  CREATE TABLE t1(xyz INTEGER, abc, UNIQUE(abc), PRIMARY KEY(xyz));
+  INSERT INTO t1(xyz,abc) VALUES(123,'Four score and seven years ago...');
+} {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY ASC, b UNIQUE);
+  INSERT INTO t1(a,b) VALUES(123,'Four score and seven years ago...');
+} {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+  CREATE UNIQUE INDEX t1b ON t1(b);
+  INSERT INTO t1(a,b) VALUES(123,'Four score and seven years ago...');
+} {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+  INSERT INTO t1(a,b) VALUES(123,'Four score and seven years ago...');
+  CREATE UNIQUE INDEX t1b ON t1(b);
+}
+
+check_same_database_content 110 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY UNIQUE, b UNIQUE);
+  INSERT INTO t1(a,b) VALUES(123,'Four score and seven years ago...');
+} {
+  CREATE TABLE t1(a INTEGER UNIQUE PRIMARY KEY, b UNIQUE);
+  INSERT INTO t1(a,b) VALUES(123,'Four score and seven years ago...');
+} {
+  CREATE TABLE t1(a INTEGER UNIQUE PRIMARY KEY, b UNIQUE, UNIQUE(a));
+  INSERT INTO t1(a,b) VALUES(123,'Four score and seven years ago...');
+} {
+  CREATE TABLE t1(a INTEGER UNIQUE PRIMARY KEY, b);
+  CREATE UNIQUE INDEX t1b ON t1(b);
+  INSERT INTO t1(a,b) VALUES(123,'Four score and seven years ago...');
+} {
+  CREATE TABLE t1(a INTEGER UNIQUE PRIMARY KEY, b);
+  INSERT INTO t1(a,b) VALUES(123,'Four score and seven years ago...');
+  CREATE UNIQUE INDEX t1b ON t1(b);
+}
+
+check_same_database_content 120 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b UNIQUE) WITHOUT ROWID;
+  INSERT INTO t1(a,b) VALUES(123,'Four score and seven years ago...');
+} {
+  CREATE TABLE t1(xyz INTEGER, abc, PRIMARY KEY(xyz), UNIQUE(abc))WITHOUT ROWID;
+  INSERT INTO t1(xyz,abc) VALUES(123,'Four score and seven years ago...');
+} {
+  CREATE TABLE t1(xyz INTEGER, abc, UNIQUE(abc), PRIMARY KEY(xyz))WITHOUT ROWID;
+  INSERT INTO t1(xyz,abc) VALUES(123,'Four score and seven years ago...');
+} {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY ASC, b UNIQUE) WITHOUT ROWID;
+  INSERT INTO t1(a,b) VALUES(123,'Four score and seven years ago...');
+} {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY UNIQUE, b UNIQUE) WITHOUT ROWID;
+  INSERT INTO t1(a,b) VALUES(123,'Four score and seven years ago...');
+} {
+  CREATE TABLE t1(a INTEGER UNIQUE PRIMARY KEY, b UNIQUE) WITHOUT ROWID;
+  INSERT INTO t1(a,b) VALUES(123,'Four score and seven years ago...');
+} {
+  CREATE TABLE t1(a INTEGER UNIQUE PRIMARY KEY, b UNIQUE, UNIQUE(a))
+       WITHOUT ROWID;
+  INSERT INTO t1(a,b) VALUES(123,'Four score and seven years ago...');
+} {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b) WITHOUT ROWID;
+  CREATE UNIQUE INDEX t1b ON t1(b);
+  INSERT INTO t1(a,b) VALUES(123,'Four score and seven years ago...');
+} {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b) WITHOUT ROWID;
+  INSERT INTO t1(a,b) VALUES(123,'Four score and seven years ago...');
+  CREATE UNIQUE INDEX t1b ON t1(b);
+}
+
+check_different_database_content 130 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b UNIQUE);
+  INSERT INTO t1(a,b) VALUES(123,'Four score and seven years ago...');
+} {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY UNIQUE, b UNIQUE);
+  INSERT INTO t1(a,b) VALUES(123,'Four score and seven years ago...');
+} {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b UNIQUE) WITHOUT ROWID;
+  INSERT INTO t1(a,b) VALUES(123,'Four score and seven years ago...');
+}
+
+
+finish_test
diff --git a/test/schemafault.test b/test/schemafault.test
new file mode 100644
index 0000000000000000000000000000000000000000..a04c78a0b422b0f97d01ef28f8fcb9c2d389b39c
--- /dev/null
+++ b/test/schemafault.test
@@ -0,0 +1,31 @@
+# 2018-08-19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# Test OOM injection in schema-related operations.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+set testprefix schemafault
+
+do_execsql_test 1.0 {
+  CREATE TABLE t2(aaa INTTT);
+  CREATE VIEW v2(xxx , yyy) AS SELECT aaa, aaa+1 FROM t2;
+}
+
+do_faultsim_test 1 -faults oom-* -prep {
+} -body {
+  execsql { SELECT * FROM v2 }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+finish_test
diff --git a/test/securedel.test b/test/securedel.test
new file mode 100644
index 0000000000000000000000000000000000000000..8323a3049723fcc7f1a543761cbc41cfaee5408e
--- /dev/null
+++ b/test/securedel.test
@@ -0,0 +1,100 @@
+# 2010 January 12
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+# Tests for the secure_delete pragma.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+unset -nocomplain DEFAULT_SECDEL
+set DEFAULT_SECDEL 0
+ifcapable fast_secure_delete {
+  set DEFAULT_SECDEL 2
+} else {
+  ifcapable secure_delete {
+    set DEFAULT_SECDEL 1
+  }
+}
+
+
+do_test securedel-1.0 {
+  db eval {PRAGMA secure_delete;}
+} $DEFAULT_SECDEL
+
+forcedelete test2.db test2.db-journal
+do_test securedel-1.1 {
+  db eval {
+    ATTACH 'test2.db' AS db2;
+    PRAGMA main.secure_delete=ON;
+    PRAGMA db2.secure_delete;
+  }
+} [list 1 $DEFAULT_SECDEL]
+do_test securedel-1.2 {
+  db eval {
+    PRAGMA main.secure_delete=OFF;
+    PRAGMA db2.secure_delete;
+  }
+} [list 0 $DEFAULT_SECDEL]
+do_test securedel-1.3 {
+  db eval {
+    PRAGMA secure_delete=OFF;
+    PRAGMA db2.secure_delete;
+  }
+} {0 0}
+do_test securedel-1.4 {
+  db eval {
+    PRAGMA secure_delete=ON;
+    PRAGMA db2.secure_delete;
+  }
+} {1 1}
+do_test securedel-1.5 {
+  db eval {
+    PRAGMA secure_delete=FAST;
+    PRAGMA db2.secure_delete;
+  }
+} {2 2}
+do_test securedel-1.6 {
+  db eval {
+    PRAGMA secure_delete=ON;
+    PRAGMA db2.secure_delete;
+  }
+} {1 1}
+do_test securedel-1.7 {
+  db eval {
+    PRAGMA main.secure_delete=FAST;
+    PRAGMA db2.secure_delete;
+  }
+} {2 1}
+do_test securedel-1.8 {
+  db eval {
+    PRAGMA main.secure_delete=ON;
+    PRAGMA db2.secure_delete;
+  }
+} {1 1}
+
+do_test securedel-2.1 {
+  db eval {
+    DETACH db2;
+    ATTACH 'test2.db' AS db2;
+    PRAGMA db2.secure_delete;
+  }
+} 1
+do_test securedel-2.2 {
+  db eval {
+    DETACH db2;
+    PRAGMA main.secure_delete=OFF;
+    ATTACH 'test2.db' AS db2;
+    PRAGMA db2.secure_delete;
+  }
+} {0 0}
+
+finish_test
diff --git a/test/securedel2.test b/test/securedel2.test
new file mode 100644
index 0000000000000000000000000000000000000000..9badc560d4e0cbd42498553fe5ce26f499189f93
--- /dev/null
+++ b/test/securedel2.test
@@ -0,0 +1,94 @@
+# 2012 August 7
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+# Tests for the secure_delete pragma.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix securedel2
+
+# Generate 1000 pseudo-random 64-bit blobs.
+#
+for {set i 1} {$i <= 1000} {incr i} {
+  set aBlob($i) [string range [db one {SELECT quote(randomblob(8))}] 2 end-1]
+}
+
+proc detect_blob_prepare {zFile} {
+  set nByte [file size $zFile]
+  set ::detect_blob_data [hexio_read $zFile 0 $nByte]
+}
+
+proc detect_blob {zFile iBlob} {
+  if {$zFile != ""} { detect_blob_prepare $zFile }
+  string match "*$::aBlob($iBlob)*" $::detect_blob_data
+}
+
+do_test 1.1 {
+  execsql { PRAGMA secure_delete = 1 }
+  execsql { PRAGMA auto_vacuum = 0 }
+  execsql { CREATE TABLE t1(x, y) }
+  for {set i 1} {$i <= 1000} {incr i} {
+    set x "X'[string repeat $aBlob($i) 1]'"
+    set y "X'[string repeat $aBlob($i) 500]'"
+    execsql "INSERT INTO t1 VALUES($x, $y)"
+  }
+} {}
+
+do_test         1.2   { detect_blob test.db 1 } {1}
+
+forcecopy test.db test.db.bak
+do_execsql_test 1.3.1 { PRAGMA secure_delete = 0 } {0}
+do_execsql_test 1.3.2 { DELETE FROM t1 WHERE rowid = 1 }
+do_test         1.3.3 { detect_blob test.db 1 } {1}
+
+db close
+forcecopy test.db.bak test.db
+sqlite3 db test.db
+do_execsql_test 1.4.1 { PRAGMA secure_delete = 1 } {1}
+do_execsql_test 1.4.2 { DELETE FROM t1 WHERE rowid = 1 }
+do_test         1.4.3 { detect_blob test.db 1 } {0}
+
+do_execsql_test 1.5.1 { DELETE FROM t1 WHERE rowid>850 } {}
+do_test 1.5.2 { 
+  set n 0
+  detect_blob_prepare test.db
+  for {set i 851} {$i <= 1000} {incr i 5} {
+    incr n [detect_blob {} $i]
+  }
+  set n
+} {0}
+
+db close
+sqlite3 db test.db
+do_test 1.6.1 { 
+  execsql {
+    PRAGMA cache_size = 200;
+    PRAGMA secure_delete = 1;
+    CREATE TABLE t2(x);
+    SELECT * FROM t1;
+  }
+  for {set i 100} {$i < 5000} {incr i} {
+    execsql { INSERT INTO t2 VALUES(randomblob($i)) }
+  }
+  execsql { DELETE FROM t1 }
+} {}
+
+do_test 1.6.2 { 
+  set n 0
+  detect_blob_prepare test.db
+  for {set i 2} {$i <= 850} {incr i 5} {
+    incr n [detect_blob {} $i]
+  }
+  set n
+} {0}
+
+finish_test
diff --git a/test/seekscan1.test b/test/seekscan1.test
new file mode 100644
index 0000000000000000000000000000000000000000..0e53c1916688e6328429c9191695ae371e9ebb16
--- /dev/null
+++ b/test/seekscan1.test
@@ -0,0 +1,68 @@
+# 2022 October 7
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix seekscan1
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a TEXT, b INT, c INT NOT NULL, PRIMARY KEY(a,b,c));
+  WITH RECURSIVE c(x) AS (VALUES(0) UNION ALL SELECT x+1 FROM c WHERE x<1997)
+    INSERT INTO t1(a,b,c) SELECT printf('xyz%d',x/10),x/6,x FROM c;
+  INSERT INTO t1 VALUES('abc',234,6);
+  INSERT INTO t1 VALUES('abc',345,7);
+  ANALYZE;
+}
+
+
+do_execsql_test 1.1 {
+  SELECT a,b,c FROM t1 
+  WHERE b IN (234, 345) AND c BETWEEN 6 AND 6.5 AND a='abc' 
+  ORDER BY a, b;
+} {
+  abc 234 6
+}
+
+do_execsql_test 1.2 {
+  SELECT a,b,c FROM t1 
+  WHERE b IN (234, 345) AND c BETWEEN 6 AND 7 AND a='abc' 
+  ORDER BY a, b;
+} {
+  abc 234 6
+  abc 345 7
+}
+
+do_execsql_test 1.3 {
+  SELECT a,b,c FROM t1 
+  WHERE b IN (234, 345) AND c >=6 AND a='abc' 
+  ORDER BY a, b;
+} {
+  abc 234 6
+  abc 345 7
+}
+
+do_execsql_test 1.4 {
+  SELECT a,b,c FROM t1 
+  WHERE b IN (234, 345) AND c<=7 AND a='abc' 
+  ORDER BY a, b;
+} {
+  abc 234 6
+  abc 345 7
+}
+
+do_execsql_test 1.5 {
+  SELECT a,b,c FROM t1 WHERE b IN (235, 345) AND c<=3 AND a='abc' ORDER BY a, b;
+}
+
+
+finish_test
diff --git a/test/select1.test b/test/select1.test
new file mode 100644
index 0000000000000000000000000000000000000000..44e63d252d1ee531a08aa26276aac893540d4e5f
--- /dev/null
+++ b/test/select1.test
@@ -0,0 +1,1213 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the SELECT statement.
+#
+# $Id: select1.test,v 1.70 2009/05/28 01:00:56 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Try to select on a non-existant table.
+#
+do_test select1-1.1 {
+  set v [catch {execsql {SELECT * FROM test1}} msg]
+  lappend v $msg
+} {1 {no such table: test1}}
+
+
+execsql {CREATE TABLE test1(f1 int, f2 int)}
+
+do_test select1-1.2 {
+  set v [catch {execsql {SELECT * FROM test1, test2}} msg]
+  lappend v $msg
+} {1 {no such table: test2}}
+do_test select1-1.3 {
+  set v [catch {execsql {SELECT * FROM test2, test1}} msg]
+  lappend v $msg
+} {1 {no such table: test2}}
+
+execsql {INSERT INTO test1(f1,f2) VALUES(11,22)}
+
+
+# Make sure the columns are extracted correctly.
+#
+do_test select1-1.4 {
+  execsql {SELECT f1 FROM test1}
+} {11}
+do_test select1-1.5 {
+  execsql {SELECT f2 FROM test1}
+} {22}
+do_test select1-1.6 {
+  execsql {SELECT f2, f1 FROM test1}
+} {22 11}
+do_test select1-1.7 {
+  execsql {SELECT f1, f2 FROM test1}
+} {11 22}
+do_test select1-1.8 {
+  execsql {SELECT * FROM test1}
+} {11 22}
+do_test select1-1.8.1 {
+  execsql {SELECT *, * FROM test1}
+} {11 22 11 22}
+do_test select1-1.8.2 {
+  execsql {SELECT *, min(f1,f2), max(f1,f2) FROM test1}
+} {11 22 11 22}
+do_test select1-1.8.3 {
+  execsql {SELECT 'one', *, 'two', * FROM test1}
+} {one 11 22 two 11 22}
+
+execsql {CREATE TABLE test2(r1 real, r2 real)}
+execsql {INSERT INTO test2(r1,r2) VALUES(1.1,2.2)}
+
+do_test select1-1.9 {
+  execsql {SELECT * FROM test1, test2}
+} {11 22 1.1 2.2}
+do_test select1-1.9.1 {
+  execsql {SELECT *, 'hi' FROM test1, test2}
+} {11 22 1.1 2.2 hi}
+do_test select1-1.9.2 {
+  execsql {SELECT 'one', *, 'two', * FROM test1, test2}
+} {one 11 22 1.1 2.2 two 11 22 1.1 2.2}
+do_test select1-1.10 {
+  execsql {SELECT test1.f1, test2.r1 FROM test1, test2}
+} {11 1.1}
+do_test select1-1.11 {
+  execsql {SELECT test1.f1, test2.r1 FROM test2, test1}
+} {11 1.1}
+do_test select1-1.11.1 {
+  execsql {SELECT * FROM test2, test1}
+} {1.1 2.2 11 22}
+do_test select1-1.11.2 {
+  execsql {SELECT * FROM test1 AS a, test1 AS b}
+} {11 22 11 22}
+do_test select1-1.12 {
+  execsql {SELECT max(test1.f1,test2.r1), min(test1.f2,test2.r2)
+           FROM test2, test1}
+} {11 2.2}
+do_test select1-1.13 {
+  execsql {SELECT min(test1.f1,test2.r1), max(test1.f2,test2.r2)
+           FROM test1, test2}
+} {1.1 22}
+
+set long {This is a string that is too big to fit inside a NBFS buffer}
+do_test select1-2.0 {
+  execsql "
+    DROP TABLE test2;
+    DELETE FROM test1;
+    INSERT INTO test1 VALUES(11,22);
+    INSERT INTO test1 VALUES(33,44);
+    CREATE TABLE t3(a,b);
+    INSERT INTO t3 VALUES('abc',NULL);
+    INSERT INTO t3 VALUES(NULL,'xyz');
+    INSERT INTO t3 SELECT * FROM test1;
+    CREATE TABLE t4(a,b);
+    INSERT INTO t4 VALUES(NULL,'$long');
+    SELECT * FROM t3;
+  "
+} {abc {} {} xyz 11 22 33 44}
+
+# Error messges from sqliteExprCheck
+#
+do_test select1-2.1 {
+  set v [catch {execsql {SELECT count(f1,f2) FROM test1}} msg]
+  lappend v $msg
+} {1 {wrong number of arguments to function count()}}
+do_test select1-2.2 {
+  set v [catch {execsql {SELECT count(f1) FROM test1}} msg]
+  lappend v $msg
+} {0 2}
+do_test select1-2.3 {
+  set v [catch {execsql {SELECT Count() FROM test1}} msg]
+  lappend v $msg
+} {0 2}
+do_test select1-2.4 {
+  set v [catch {execsql {SELECT COUNT(*) FROM test1}} msg]
+  lappend v $msg
+} {0 2}
+do_test select1-2.5 {
+  set v [catch {execsql {SELECT COUNT(*)+1 FROM test1}} msg]
+  lappend v $msg
+} {0 3}
+do_test select1-2.5.1 {
+  execsql {SELECT count(*),count(a),count(b) FROM t3}
+} {4 3 3}
+do_test select1-2.5.2 {
+  execsql {SELECT count(*),count(a),count(b) FROM t4}
+} {1 0 1}
+do_test select1-2.5.3 {
+  execsql {SELECT count(*),count(a),count(b) FROM t4 WHERE b=5}
+} {0 0 0}
+do_test select1-2.6 {
+  set v [catch {execsql {SELECT min(*) FROM test1}} msg]
+  lappend v $msg
+} {1 {wrong number of arguments to function min()}}
+do_test select1-2.7 {
+  set v [catch {execsql {SELECT Min(f1) FROM test1}} msg]
+  lappend v $msg
+} {0 11}
+do_test select1-2.8 {
+  set v [catch {execsql {SELECT MIN(f1,f2) FROM test1}} msg]
+  lappend v [lsort $msg]
+} {0 {11 33}}
+do_test select1-2.8.1 {
+  execsql {SELECT coalesce(min(a),'xyzzy') FROM t3}
+} {11}
+do_test select1-2.8.2 {
+  execsql {SELECT min(coalesce(a,'xyzzy')) FROM t3}
+} {11}
+do_test select1-2.8.3 {
+  execsql {SELECT min(b), min(b) FROM t4}
+} [list $long $long]
+do_test select1-2.9 {
+  set v [catch {execsql {SELECT MAX(*) FROM test1}} msg]
+  lappend v $msg
+} {1 {wrong number of arguments to function MAX()}}
+do_test select1-2.10 {
+  set v [catch {execsql {SELECT Max(f1) FROM test1}} msg]
+  lappend v $msg
+} {0 33}
+do_test select1-2.11 {
+  set v [catch {execsql {SELECT max(f1,f2) FROM test1}} msg]
+  lappend v [lsort $msg]
+} {0 {22 44}}
+do_test select1-2.12 {
+  set v [catch {execsql {SELECT MAX(f1,f2)+1 FROM test1}} msg]
+  lappend v [lsort $msg]
+} {0 {23 45}}
+do_test select1-2.13 {
+  set v [catch {execsql {SELECT MAX(f1)+1 FROM test1}} msg]
+  lappend v $msg
+} {0 34}
+do_test select1-2.13.1 {
+  execsql {SELECT coalesce(max(a),'xyzzy') FROM t3}
+} {abc}
+do_test select1-2.13.2 {
+  execsql {SELECT max(coalesce(a,'xyzzy')) FROM t3}
+} {xyzzy}
+do_test select1-2.14 {
+  set v [catch {execsql {SELECT SUM(*) FROM test1}} msg]
+  lappend v $msg
+} {1 {wrong number of arguments to function SUM()}}
+do_test select1-2.15 {
+  set v [catch {execsql {SELECT Sum(f1) FROM test1}} msg]
+  lappend v $msg
+} {0 44}
+do_test select1-2.16 {
+  set v [catch {execsql {SELECT sum(f1,f2) FROM test1}} msg]
+  lappend v $msg
+} {1 {wrong number of arguments to function sum()}}
+do_test select1-2.17 {
+  set v [catch {execsql {SELECT SUM(f1)+1 FROM test1}} msg]
+  lappend v $msg
+} {0 45}
+do_test select1-2.17.1 {
+  execsql {SELECT sum(a) FROM t3}
+} {44.0}
+do_test select1-2.18 {
+  set v [catch {execsql {SELECT XYZZY(f1) FROM test1}} msg]
+  lappend v $msg
+} {1 {no such function: XYZZY}}
+do_test select1-2.19 {
+  set v [catch {execsql {SELECT SUM(min(f1,f2)) FROM test1}} msg]
+  lappend v $msg
+} {0 44}
+do_test select1-2.20 {
+  set v [catch {execsql {SELECT SUM(min(f1)) FROM test1}} msg]
+  lappend v $msg
+} {1 {misuse of aggregate function min()}}
+
+# Ticket #2526
+#
+do_test select1-2.21 {
+  catchsql {
+     SELECT min(f1) AS m FROM test1 GROUP BY f1 HAVING max(m+5)<10
+  }
+} {1 {misuse of aliased aggregate m}}
+do_test select1-2.22 {
+  catchsql {
+     SELECT coalesce(min(f1)+5,11) AS m FROM test1
+      GROUP BY f1
+     HAVING max(m+5)<10
+  }
+} {1 {misuse of aliased aggregate m}}
+do_test select1-2.23 {
+  execsql {
+    CREATE TABLE tkt2526(a,b,c PRIMARY KEY);
+    INSERT INTO tkt2526 VALUES('x','y',NULL);
+    INSERT INTO tkt2526 VALUES('x','z',NULL);
+  }
+  catchsql {
+    SELECT count(a) AS cn FROM tkt2526 GROUP BY a HAVING cn<max(cn)
+  }
+} {1 {misuse of aliased aggregate cn}}
+
+# WHERE clause expressions
+#
+do_test select1-3.1 {
+  set v [catch {execsql {SELECT f1 FROM test1 WHERE f1<11}} msg]
+  lappend v $msg
+} {0 {}}
+do_test select1-3.2 {
+  set v [catch {execsql {SELECT f1 FROM test1 WHERE f1<=11}} msg]
+  lappend v $msg
+} {0 11}
+do_test select1-3.3 {
+  set v [catch {execsql {SELECT f1 FROM test1 WHERE f1=11}} msg]
+  lappend v $msg
+} {0 11}
+do_test select1-3.4 {
+  set v [catch {execsql {SELECT f1 FROM test1 WHERE f1>=11}} msg]
+  lappend v [lsort $msg]
+} {0 {11 33}}
+do_test select1-3.5 {
+  set v [catch {execsql {SELECT f1 FROM test1 WHERE f1>11}} msg]
+  lappend v [lsort $msg]
+} {0 33}
+do_test select1-3.6 {
+  set v [catch {execsql {SELECT f1 FROM test1 WHERE f1!=11}} msg]
+  lappend v [lsort $msg]
+} {0 33}
+do_test select1-3.7 {
+  set v [catch {execsql {SELECT f1 FROM test1 WHERE min(f1,f2)!=11}} msg]
+  lappend v [lsort $msg]
+} {0 33}
+do_test select1-3.8 {
+  set v [catch {execsql {SELECT f1 FROM test1 WHERE max(f1,f2)!=11}} msg]
+  lappend v [lsort $msg]
+} {0 {11 33}}
+do_test select1-3.9 {
+  set v [catch {execsql {SELECT f1 FROM test1 WHERE count(f1,f2)!=11}} msg]
+  lappend v $msg
+} {1 {wrong number of arguments to function count()}}
+
+# ORDER BY expressions
+#
+do_test select1-4.1 {
+  set v [catch {execsql {SELECT f1 FROM test1 ORDER BY f1}} msg]
+  lappend v $msg
+} {0 {11 33}}
+do_test select1-4.2 {
+  set v [catch {execsql {SELECT f1 FROM test1 ORDER BY -f1}} msg]
+  lappend v $msg
+} {0 {33 11}}
+do_test select1-4.3 {
+  set v [catch {execsql {SELECT f1 FROM test1 ORDER BY min(f1,f2)}} msg]
+  lappend v $msg
+} {0 {11 33}}
+do_test select1-4.4 {
+  set v [catch {execsql {SELECT f1 FROM test1 ORDER BY min(f1)}} msg]
+  lappend v $msg
+} {1 {misuse of aggregate: min()}}
+do_catchsql_test select1-4.5 {
+  INSERT INTO test1(f1) SELECT f1 FROM test1 ORDER BY min(f1);
+} {1 {misuse of aggregate: min()}}
+
+# The restriction not allowing constants in the ORDER BY clause
+# has been removed.  See ticket #1768
+#do_test select1-4.5 {
+#  catchsql {
+#    SELECT f1 FROM test1 ORDER BY 8.4;
+#  }
+#} {1 {ORDER BY terms must not be non-integer constants}}
+#do_test select1-4.6 {
+#  catchsql {
+#    SELECT f1 FROM test1 ORDER BY '8.4';
+#  }
+#} {1 {ORDER BY terms must not be non-integer constants}}
+#do_test select1-4.7.1 {
+#  catchsql {
+#    SELECT f1 FROM test1 ORDER BY 'xyz';
+#  }
+#} {1 {ORDER BY terms must not be non-integer constants}}
+#do_test select1-4.7.2 {
+#  catchsql {
+#    SELECT f1 FROM test1 ORDER BY -8.4;
+#  }
+#} {1 {ORDER BY terms must not be non-integer constants}}
+#do_test select1-4.7.3 {
+#  catchsql {
+#    SELECT f1 FROM test1 ORDER BY +8.4;
+#  }
+#} {1 {ORDER BY terms must not be non-integer constants}}
+#do_test select1-4.7.4 {
+#  catchsql {
+#    SELECT f1 FROM test1 ORDER BY 4294967296; -- constant larger than 32 bits
+#  }
+#} {1 {ORDER BY terms must not be non-integer constants}}
+
+do_test select1-4.5 {
+  execsql {
+    SELECT f1 FROM test1 ORDER BY 8.4
+  }
+} {11 33}
+do_test select1-4.6 {
+  execsql {
+    SELECT f1 FROM test1 ORDER BY '8.4'
+  }
+} {11 33}
+
+do_test select1-4.8 {
+  execsql {
+    CREATE TABLE t5(a,b);
+    INSERT INTO t5 VALUES(1,10);
+    INSERT INTO t5 VALUES(2,9);
+    SELECT * FROM t5 ORDER BY 1;
+  }
+} {1 10 2 9}
+do_test select1-4.9.1 {
+  execsql {
+    SELECT * FROM t5 ORDER BY 2;
+  }
+} {2 9 1 10}
+do_test select1-4.9.2 {
+  execsql {
+    SELECT * FROM t5 ORDER BY +2;
+  }
+} {2 9 1 10}
+do_test select1-4.10.1 {
+  catchsql {
+    SELECT * FROM t5 ORDER BY 3;
+  }
+} {1 {1st ORDER BY term out of range - should be between 1 and 2}}
+do_test select1-4.10.2 {
+  catchsql {
+    SELECT * FROM t5 ORDER BY -1;
+  }
+} {1 {1st ORDER BY term out of range - should be between 1 and 2}}
+do_test select1-4.11 {
+  execsql {
+    INSERT INTO t5 VALUES(3,10);
+    SELECT * FROM t5 ORDER BY 2, 1 DESC;
+  }
+} {2 9 3 10 1 10}
+do_test select1-4.12 {
+  execsql {
+    SELECT * FROM t5 ORDER BY 1 DESC, b;
+  }
+} {3 10 2 9 1 10}
+do_test select1-4.13 {
+  execsql {
+    SELECT * FROM t5 ORDER BY b DESC, 1;
+  }
+} {1 10 3 10 2 9}
+
+
+# ORDER BY ignored on an aggregate query
+#
+do_test select1-5.1 {
+  set v [catch {execsql {SELECT max(f1) FROM test1 ORDER BY f2}} msg]
+  lappend v $msg
+} {0 33}
+
+execsql {CREATE TABLE test2(t1 text, t2 text)}
+execsql {INSERT INTO test2 VALUES('abc','xyz')}
+
+# Check for column naming
+#
+do_test select1-6.1 {
+  set v [catch {execsql2 {SELECT f1 FROM test1 ORDER BY f2}} msg]
+  lappend v $msg
+} {0 {f1 11 f1 33}}
+do_test select1-6.1.1 {
+  db eval {PRAGMA full_column_names=on}
+  set v [catch {execsql2 {SELECT f1 FROM test1 ORDER BY f2}} msg]
+  lappend v $msg
+} {0 {test1.f1 11 test1.f1 33}}
+do_test select1-6.1.2 {
+  set v [catch {execsql2 {SELECT f1 as 'f1' FROM test1 ORDER BY f2}} msg]
+  lappend v $msg
+} {0 {f1 11 f1 33}}
+do_test select1-6.1.3 {
+  set v [catch {execsql2 {SELECT * FROM test1 WHERE f1==11}} msg]
+  lappend v $msg
+} {0 {f1 11 f2 22}}
+do_test select1-6.1.4 {
+  set v [catch {execsql2 {SELECT DISTINCT * FROM test1 WHERE f1==11}} msg]
+  db eval {PRAGMA full_column_names=off}
+  lappend v $msg
+} {0 {f1 11 f2 22}}
+do_test select1-6.1.5 {
+  set v [catch {execsql2 {SELECT * FROM test1 WHERE f1==11}} msg]
+  lappend v $msg
+} {0 {f1 11 f2 22}}
+do_test select1-6.1.6 {
+  set v [catch {execsql2 {SELECT DISTINCT * FROM test1 WHERE f1==11}} msg]
+  lappend v $msg
+} {0 {f1 11 f2 22}}
+do_test select1-6.2 {
+  set v [catch {execsql2 {SELECT f1 as xyzzy FROM test1 ORDER BY f2}} msg]
+  lappend v $msg
+} {0 {xyzzy 11 xyzzy 33}}
+do_test select1-6.3 {
+  set v [catch {execsql2 {SELECT f1 as "xyzzy" FROM test1 ORDER BY f2}} msg]
+  lappend v $msg
+} {0 {xyzzy 11 xyzzy 33}}
+do_test select1-6.3.1 {
+  set v [catch {execsql2 {SELECT f1 as 'xyzzy ' FROM test1 ORDER BY f2}} msg]
+  lappend v $msg
+} {0 {{xyzzy } 11 {xyzzy } 33}}
+do_test select1-6.4 {
+  set v [catch {execsql2 {SELECT f1+F2 as xyzzy FROM test1 ORDER BY f2}} msg]
+  lappend v $msg
+} {0 {xyzzy 33 xyzzy 77}}
+do_test select1-6.4a {
+  set v [catch {execsql2 {SELECT f1+F2 FROM test1 ORDER BY f2}} msg]
+  lappend v $msg
+} {0 {f1+F2 33 f1+F2 77}}
+do_test select1-6.5 {
+  set v [catch {execsql2 {SELECT test1.f1+F2 FROM test1 ORDER BY f2}} msg]
+  lappend v $msg
+} {0 {test1.f1+F2 33 test1.f1+F2 77}}
+do_test select1-6.5.1 {
+  execsql2 {PRAGMA full_column_names=on}
+  set v [catch {execsql2 {SELECT test1.f1+F2 FROM test1 ORDER BY f2}} msg]
+  execsql2 {PRAGMA full_column_names=off}
+  lappend v $msg
+} {0 {test1.f1+F2 33 test1.f1+F2 77}}
+do_test select1-6.6 {
+  set v [catch {execsql2 {SELECT test1.f1+F2, t1 FROM test1, test2 
+         ORDER BY f2}} msg]
+  lappend v $msg
+} {0 {test1.f1+F2 33 t1 abc test1.f1+F2 77 t1 abc}}
+do_test select1-6.7 {
+  set v [catch {execsql2 {SELECT A.f1, t1 FROM test1 as A, test2 
+         ORDER BY f2}} msg]
+  lappend v $msg
+} {0 {f1 11 t1 abc f1 33 t1 abc}}
+do_test select1-6.8 {
+  set v [catch {execsql2 {SELECT A.f1, f1 FROM test1 as A, test1 as B 
+         ORDER BY f2}} msg]
+  lappend v $msg
+} {1 {ambiguous column name: f1}}
+do_test select1-6.8b {
+  set v [catch {execsql2 {SELECT A.f1, B.f1 FROM test1 as A, test1 as B 
+         ORDER BY f2}} msg]
+  lappend v $msg
+} {1 {ambiguous column name: f2}}
+do_test select1-6.8c {
+  set v [catch {execsql2 {SELECT A.f1, f1 FROM test1 as A, test1 as A 
+         ORDER BY f2}} msg]
+  lappend v $msg
+} {1 {ambiguous column name: A.f1}}
+do_test select1-6.9.1 {
+  set v [catch {execsql {SELECT A.f1, B.f1 FROM test1 as A, test1 as B 
+         ORDER BY A.f1, B.f1}} msg]
+  lappend v $msg
+} {0 {11 11 11 33 33 11 33 33}}
+do_test select1-6.9.2 {
+  set v [catch {execsql2 {SELECT A.f1, B.f1 FROM test1 as A, test1 as B 
+         ORDER BY A.f1, B.f1}} msg]
+  lappend v $msg
+} {0 {f1 11 f1 11 f1 33 f1 33 f1 11 f1 11 f1 33 f1 33}}
+
+do_test select1-6.9.3 {
+  db eval {
+     PRAGMA short_column_names=OFF;
+     PRAGMA full_column_names=OFF;
+  }
+  execsql2 {
+     SELECT test1 . f1, test1 . f2 FROM test1 LIMIT 1
+  }
+} {{test1 . f1} 11 {test1 . f2} 22}
+do_test select1-6.9.4 {
+  db eval {
+     PRAGMA short_column_names=OFF;
+     PRAGMA full_column_names=ON;
+  }
+  execsql2 {
+     SELECT test1 . f1, test1 . f2 FROM test1 LIMIT 1
+  }
+} {test1.f1 11 test1.f2 22}
+do_test select1-6.9.5 {
+  db eval {
+     PRAGMA short_column_names=OFF;
+     PRAGMA full_column_names=ON;
+  }
+  execsql2 {
+     SELECT 123.45;
+  }
+} {123.45 123.45}
+do_test select1-6.9.6 {
+  execsql2 {
+     SELECT * FROM test1 a, test1 b LIMIT 1
+  }
+} {a.f1 11 a.f2 22 b.f1 11 b.f2 22}
+do_test select1-6.9.7 {
+  set x [execsql2 {
+     SELECT * FROM test1 a, (select 5, 6) LIMIT 1
+  }]
+  regsub -all {subquery-\d+} $x {subquery-0} x
+  set x
+} {a.f1 11 a.f2 22 (subquery-0).5 5 (subquery-0).6 6}
+do_test select1-6.9.8 {
+  set x [execsql2 {
+     SELECT * FROM test1 a, (select 5 AS x, 6 AS y) AS b LIMIT 1
+  }]
+  regsub -all {subquery-\d+} $x {subquery-0} x
+  set x
+} {a.f1 11 a.f2 22 b.x 5 b.y 6}
+do_test select1-6.9.9 {
+  execsql2 {
+     SELECT a.f1, b.f2 FROM test1 a, test1 b LIMIT 1
+  }
+} {test1.f1 11 test1.f2 22}
+do_test select1-6.9.10 {
+  execsql2 {
+     SELECT f1, t1 FROM test1, test2 LIMIT 1
+  }
+} {test1.f1 11 test2.t1 abc}
+do_test select1-6.9.11 {
+  db eval {
+     PRAGMA short_column_names=ON;
+     PRAGMA full_column_names=ON;
+  }
+  execsql2 {
+     SELECT a.f1, b.f2 FROM test1 a, test1 b LIMIT 1
+  }
+} {test1.f1 11 test1.f2 22}
+do_test select1-6.9.12 {
+  execsql2 {
+     SELECT f1, t1 FROM test1, test2 LIMIT 1
+  }
+} {test1.f1 11 test2.t1 abc}
+do_test select1-6.9.13 {
+  db eval {
+     PRAGMA short_column_names=ON;
+     PRAGMA full_column_names=OFF;
+  }
+  execsql2 {
+     SELECT a.f1, b.f1 FROM test1 a, test1 b LIMIT 1
+  }
+} {f1 11 f1 11}
+do_test select1-6.9.14 {
+  execsql2 {
+     SELECT f1, t1 FROM test1, test2 LIMIT 1
+  }
+} {f1 11 t1 abc}
+do_test select1-6.9.15 {
+  db eval {
+     PRAGMA short_column_names=OFF;
+     PRAGMA full_column_names=ON;
+  }
+  execsql2 {
+     SELECT a.f1, b.f1 FROM test1 a, test1 b LIMIT 1
+  }
+} {test1.f1 11 test1.f1 11}
+do_test select1-6.9.16 {
+  execsql2 {
+     SELECT f1, t1 FROM test1, test2 LIMIT 1
+  }
+} {test1.f1 11 test2.t1 abc}
+
+
+db eval {
+  PRAGMA short_column_names=ON;
+  PRAGMA full_column_names=OFF;
+}
+
+ifcapable compound {
+do_test select1-6.10 {
+  set v [catch {execsql2 {
+    SELECT f1 FROM test1 UNION SELECT f2 FROM test1
+    ORDER BY f2;
+  }} msg]
+  lappend v $msg
+} {0 {f1 11 f1 22 f1 33 f1 44}}
+do_test select1-6.11 {
+  set v [catch {execsql2 {
+    SELECT f1 FROM test1 UNION SELECT f2+100 FROM test1
+    ORDER BY f2+101;
+  }} msg]
+  lappend v $msg
+} {1 {1st ORDER BY term does not match any column in the result set}}
+
+# Ticket #2296
+ifcapable subquery&&compound {
+do_test select1-6.20 {
+   execsql {
+     CREATE TABLE t6(a TEXT, b TEXT);
+     INSERT INTO t6 VALUES('a','0');
+     INSERT INTO t6 VALUES('b','1');
+     INSERT INTO t6 VALUES('c','2');
+     INSERT INTO t6 VALUES('d','3');
+     SELECT a FROM t6 WHERE b IN 
+        (SELECT b FROM t6 WHERE a<='b' UNION SELECT '3' AS x
+                 ORDER BY 1 LIMIT 1)
+   }
+} {a}
+do_test select1-6.21 {
+   execsql {
+     SELECT a FROM t6 WHERE b IN 
+        (SELECT b FROM t6 WHERE a<='b' UNION SELECT '3' AS x
+                 ORDER BY 1 DESC LIMIT 1)
+   }
+} {d}
+do_test select1-6.22 {
+   execsql {
+     SELECT a FROM t6 WHERE b IN 
+        (SELECT b FROM t6 WHERE a<='b' UNION SELECT '3' AS x
+                 ORDER BY b LIMIT 2)
+     ORDER BY a;
+   }
+} {a b}
+do_test select1-6.23 {
+   execsql {
+     SELECT a FROM t6 WHERE b IN 
+        (SELECT b FROM t6 WHERE a<='b' UNION SELECT '3' AS x
+                 ORDER BY x DESC LIMIT 2)
+     ORDER BY a;
+   }
+} {b d}
+}
+
+} ;#ifcapable compound
+
+do_test select1-7.1 {
+  set v [catch {execsql {
+     SELECT f1 FROM test1 WHERE f2=;
+  }} msg]
+  lappend v $msg
+} {1 {near ";": syntax error}}
+ifcapable compound {
+do_test select1-7.2 {
+  set v [catch {execsql {
+     SELECT f1 FROM test1 UNION SELECT WHERE;
+  }} msg]
+  lappend v $msg
+} {1 {near "WHERE": syntax error}}
+} ;# ifcapable compound
+do_test select1-7.3 {
+  set v [catch {execsql {SELECT f1 FROM test1 as 'hi', test2 as}} msg]
+  lappend v $msg
+} {1 {incomplete input}}
+do_test select1-7.4 {
+  set v [catch {execsql {
+     SELECT f1 FROM test1 ORDER BY;
+  }} msg]
+  lappend v $msg
+} {1 {near ";": syntax error}}
+do_test select1-7.5 {
+  set v [catch {execsql {
+     SELECT f1 FROM test1 ORDER BY f1 desc, f2 where;
+  }} msg]
+  lappend v $msg
+} {1 {near "where": syntax error}}
+do_test select1-7.6 {
+  set v [catch {execsql {
+     SELECT count(f1,f2 FROM test1;
+  }} msg]
+  lappend v $msg
+} {1 {near "FROM": syntax error}}
+do_test select1-7.7 {
+  set v [catch {execsql {
+     SELECT count(f1,f2+) FROM test1;
+  }} msg]
+  lappend v $msg
+} {1 {near ")": syntax error}}
+do_test select1-7.8 {
+  set v [catch {execsql {
+     SELECT f1 FROM test1 ORDER BY f2, f1+;
+  }} msg]
+  lappend v $msg
+} {1 {near ";": syntax error}}
+do_test select1-7.9 {
+  catchsql {
+     SELECT f1 FROM test1 LIMIT 5+3 OFFSET 11 ORDER BY f2;
+  }
+} {1 {near "ORDER": syntax error}}
+
+do_test select1-8.1 {
+  execsql {SELECT f1 FROM test1 WHERE 4.3+2.4 OR 1 ORDER BY f1}
+} {11 33}
+do_test select1-8.2 {
+  execsql {
+    SELECT f1 FROM test1 WHERE ('x' || f1) BETWEEN 'x10' AND 'x20'
+    ORDER BY f1
+  }
+} {11}
+do_test select1-8.3 {
+  execsql {
+    SELECT f1 FROM test1 WHERE 5-3==2
+    ORDER BY f1
+  }
+} {11 33}
+
+# TODO: This test is failing because f1 is now being loaded off the
+# disk as a vdbe integer, not a string. Hence the value of f1/(f1-11)
+# changes because of rounding. Disable the test for now.
+if 0 {
+do_test select1-8.4 {
+  execsql {
+    SELECT coalesce(f1/(f1-11),'x'),
+           coalesce(min(f1/(f1-11),5),'y'),
+           coalesce(max(f1/(f1-33),6),'z')
+    FROM test1 ORDER BY f1
+  }
+} {x y 6 1.5 1.5 z}
+}
+do_test select1-8.5 {
+  execsql {
+    SELECT min(1,2,3), -max(1,2,3)
+    FROM test1 ORDER BY f1
+  }
+} {1 -3 1 -3}
+
+
+# Check the behavior when the result set is empty
+#
+# SQLite v3 always sets r(*).
+#
+# do_test select1-9.1 {
+#   catch {unset r}
+#   set r(*) {}
+#   db eval {SELECT * FROM test1 WHERE f1<0} r {}
+#   set r(*)
+# } {}
+do_test select1-9.2 {
+  execsql {PRAGMA empty_result_callbacks=on}
+  catch {unset r}
+  set r(*) {}
+  db eval {SELECT * FROM test1 WHERE f1<0} r {}
+  set r(*)
+} {f1 f2}
+ifcapable subquery {
+  do_test select1-9.3 {
+    set r(*) {}
+    db eval {SELECT * FROM test1 WHERE f1<(select count(*) from test2)} r {}
+    set r(*)
+  } {f1 f2}
+}
+do_test select1-9.4 {
+  set r(*) {}
+  db eval {SELECT * FROM test1 ORDER BY f1} r {}
+  set r(*)
+} {f1 f2}
+do_test select1-9.5 {
+  set r(*) {}
+  db eval {SELECT * FROM test1 WHERE f1<0 ORDER BY f1} r {}
+  set r(*)
+} {f1 f2}
+unset r
+
+# Check for ORDER BY clauses that refer to an AS name in the column list
+#
+do_test select1-10.1 {
+  execsql {
+    SELECT f1 AS x FROM test1 ORDER BY x
+  }
+} {11 33}
+do_test select1-10.2 {
+  execsql {
+    SELECT f1 AS x FROM test1 ORDER BY -x
+  }
+} {33 11}
+do_test select1-10.3 {
+  execsql {
+    SELECT f1-23 AS x FROM test1 ORDER BY abs(x)
+  }
+} {10 -12}
+do_test select1-10.4 {
+  execsql {
+    SELECT f1-23 AS x FROM test1 ORDER BY -abs(x)
+  }
+} {-12 10}
+do_test select1-10.5 {
+  execsql {
+    SELECT f1-22 AS x, f2-22 as y FROM test1
+  }
+} {-11 0 11 22}
+do_test select1-10.6 {
+  execsql {
+    SELECT f1-22 AS x, f2-22 as y FROM test1 WHERE x>0 AND y<50
+  }
+} {11 22}
+do_test select1-10.7 {
+  execsql {
+    SELECT f1 COLLATE nocase AS x FROM test1 ORDER BY x
+  }
+} {11 33}
+
+# Check the ability to specify "TABLE.*" in the result set of a SELECT
+#
+do_test select1-11.1 {
+  execsql {
+    DELETE FROM t3;
+    DELETE FROM t4;
+    INSERT INTO t3 VALUES(1,2);
+    INSERT INTO t4 VALUES(3,4);
+    SELECT * FROM t3, t4;
+  }
+} {1 2 3 4}
+do_test select1-11.2.1 {
+  execsql {
+    SELECT * FROM t3, t4;
+  }
+} {1 2 3 4}
+do_test select1-11.2.2 {
+  execsql2 {
+    SELECT * FROM t3, t4;
+  }
+} {a 3 b 4 a 3 b 4}
+do_test select1-11.4.1 {
+  execsql {
+    SELECT t3.*, t4.b FROM t3, t4;
+  }
+} {1 2 4}
+do_test select1-11.4.2 {
+  execsql {
+    SELECT "t3".*, t4.b FROM t3, t4;
+  }
+} {1 2 4}
+do_test select1-11.5.1 {
+  execsql2 {
+    SELECT t3.*, t4.b FROM t3, t4;
+  }
+} {a 1 b 4 b 4}
+do_test select1-11.6 {
+  execsql2 {
+    SELECT x.*, y.b FROM t3 AS x, t4 AS y;
+  }
+} {a 1 b 4 b 4}
+do_test select1-11.7 {
+  execsql {
+    SELECT t3.b, t4.* FROM t3, t4;
+  }
+} {2 3 4}
+do_test select1-11.8 {
+  execsql2 {
+    SELECT t3.b, t4.* FROM t3, t4;
+  }
+} {b 4 a 3 b 4}
+do_test select1-11.9 {
+  execsql2 {
+    SELECT x.b, y.* FROM t3 AS x, t4 AS y;
+  }
+} {b 4 a 3 b 4}
+do_test select1-11.10 {
+  catchsql {
+    SELECT t5.* FROM t3, t4;
+  }
+} {1 {no such table: t5}}
+do_test select1-11.11 {
+  catchsql {
+    SELECT t3.* FROM t3 AS x, t4;
+  }
+} {1 {no such table: t3}}
+ifcapable subquery {
+  do_test select1-11.12 {
+    execsql2 {
+      SELECT t3.* FROM t3, (SELECT max(a), max(b) FROM t4)
+    }
+  } {a 1 b 2}
+  do_test select1-11.13 {
+    execsql2 {
+      SELECT t3.* FROM (SELECT max(a), max(b) FROM t4), t3
+    }
+  } {a 1 b 2}
+  do_test select1-11.14 {
+    execsql2 {
+      SELECT * FROM t3, (SELECT max(a), max(b) FROM t4) AS 'tx'
+    }
+  } {a 1 b 2 max(a) 3 max(b) 4}
+  do_test select1-11.15 {
+    execsql2 {
+      SELECT y.*, t3.* FROM t3, (SELECT max(a), max(b) FROM t4) AS y
+    }
+  } {max(a) 3 max(b) 4 a 1 b 2}
+}
+do_test select1-11.16 {
+  execsql2 {
+    SELECT y.* FROM t3 as y, t4 as z
+  }
+} {a 1 b 2}
+
+# Tests of SELECT statements without a FROM clause.
+#
+do_test select1-12.1 {
+  execsql2 {
+    SELECT 1+2+3
+  }
+} {1+2+3 6}
+do_test select1-12.2 {
+  execsql2 {
+    SELECT 1,'hello',2
+  }
+} {1 1 'hello' hello 2 2}
+do_test select1-12.3 {
+  execsql2 {
+    SELECT 1 AS 'a','hello' AS 'b',2 AS 'c'
+  }
+} {a 1 b hello c 2}
+do_test select1-12.4 {
+  execsql {
+    DELETE FROM t3;
+    INSERT INTO t3 VALUES(1,2);
+  }
+} {}
+
+ifcapable compound {
+do_test select1-12.5 {
+  execsql {
+    SELECT * FROM t3 UNION SELECT 3 AS 'a', 4 ORDER BY a;
+  }
+} {1 2 3 4}
+
+do_test select1-12.6 {
+  execsql {
+    SELECT 3, 4 UNION SELECT * FROM t3;
+  }
+} {1 2 3 4}
+} ;# ifcapable compound
+
+ifcapable subquery {
+  do_test select1-12.7 {
+    execsql {
+      SELECT * FROM t3 WHERE a=(SELECT 1);
+    }
+  } {1 2}
+  do_test select1-12.8 {
+    execsql {
+      SELECT * FROM t3 WHERE a=(SELECT 2);
+    }
+  } {}
+}
+
+ifcapable {compound && subquery} {
+  do_test select1-12.9 {
+    execsql2 {
+      SELECT x FROM (
+        SELECT a AS x, b AS y FROM t3 UNION SELECT a,b FROM t4 ORDER BY a,b
+      ) ORDER BY x;
+    }
+  } {x 1 x 3}
+  do_test select1-12.10 {
+    execsql2 {
+      SELECT z.x FROM (
+        SELECT a AS x,b AS y FROM t3 UNION SELECT a, b FROM t4 ORDER BY a,b
+      ) AS 'z' ORDER BY x;
+    }
+  } {x 1 x 3}
+} ;# ifcapable compound
+
+
+# Check for a VDBE stack growth problem that existed at one point.
+#
+ifcapable subquery {
+  do_test select1-13.1 {
+    execsql {
+      BEGIN;
+      create TABLE abc(a, b, c, PRIMARY KEY(a, b));
+      INSERT INTO abc VALUES(1, 1, 1);
+    }
+    for {set i 0} {$i<10} {incr i} {
+      execsql {
+        INSERT INTO abc SELECT a+(select max(a) FROM abc), 
+            b+(select max(a) FROM abc), c+(select max(a) FROM abc) FROM abc;
+      }
+    }
+    execsql {COMMIT}
+  
+    # This used to seg-fault when the problem existed.
+    execsql {
+      SELECT count(
+        (SELECT a FROM abc WHERE a = NULL AND b >= upper.c) 
+      ) FROM abc AS upper;
+    }
+  } {0}
+}
+
+foreach tab [db eval {SELECT name FROM sqlite_master WHERE type = 'table'}] {
+  db eval "DROP TABLE $tab"
+}
+db close
+sqlite3 db test.db
+
+do_test select1-14.1 {
+  execsql { 
+    SELECT * FROM sqlite_master WHERE rowid>10; 
+    SELECT * FROM sqlite_master WHERE rowid=10;
+    SELECT * FROM sqlite_master WHERE rowid<10;
+    SELECT * FROM sqlite_master WHERE rowid<=10;
+    SELECT * FROM sqlite_master WHERE rowid>=10;
+    SELECT * FROM sqlite_master;
+  }
+} {}
+do_test select1-14.2 {
+  execsql { 
+    SELECT 10 IN (SELECT rowid FROM sqlite_master);
+  }
+} {0}
+
+if {[db one {PRAGMA locking_mode}]=="normal"} {
+  # Check that ticket #3771 has been fixed.  This test does not
+  # work with locking_mode=EXCLUSIVE so disable in that case.
+  #
+  do_test select1-15.1 {
+    execsql {
+      CREATE TABLE t1(a);
+      CREATE INDEX i1 ON t1(a);
+      INSERT INTO t1 VALUES(1);
+      INSERT INTO t1 VALUES(2);
+      INSERT INTO t1 VALUES(3);
+    }
+  } {}
+  do_test select1-15.2 {
+    sqlite3 db2 test.db
+    execsql { DROP INDEX i1 } db2
+    db2 close
+  } {}
+  do_test select1-15.3 {
+    execsql { SELECT 2 IN (SELECT a FROM t1) }
+  } {1}
+}
+
+# Crash bug reported on the mailing list on 2012-02-23
+#
+do_test select1-16.1 {
+  catchsql {SELECT 1 FROM (SELECT *)}
+} {1 {no tables specified}}
+
+# 2015-04-17:  assertion fix.
+do_catchsql_test select1-16.2 {
+  SELECT 1 FROM sqlite_master LIMIT 1,#1;
+} {1 {near "#1": syntax error}}
+
+# 2019-01-16 Chromium bug 922312
+# Sorting with a LIMIT clause using SRT_EphemTab and SRT_Table
+#
+do_execsql_test select1-17.1 {
+  DROP TABLE IF EXISTS t1;
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t1(x);   INSERT INTO t1 VALUES(1);
+  CREATE TABLE t2(y,z); INSERT INTO t2 VALUES(2,3);
+  CREATE INDEX t2y ON t2(y);
+  SELECT * FROM t1,(SELECT * FROM t2 WHERE y=2 ORDER BY y,z);
+} {1 2 3}
+do_execsql_test select1-17.2 {
+  SELECT * FROM t1,(SELECT * FROM t2 WHERE y=2 ORDER BY y,z LIMIT 4);
+} {1 2 3}
+do_execsql_test select1-17.3 {
+  SELECT * FROM t1,(SELECT * FROM t2 WHERE y=2
+         UNION ALL SELECT * FROM t2 WHERE y=3 ORDER BY y,z LIMIT 4);
+} {1 2 3}
+
+# 2019-07-24 Ticket https://sqlite.org/src/tktview/c52b09c7f38903b1311
+#
+do_execsql_test select1-18.1 {
+  DROP TABLE IF EXISTS t1;
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t1(c);
+  CREATE TABLE t2(x PRIMARY KEY, y);
+  INSERT INTO t1(c) VALUES(123);
+  INSERT INTO t2(x) VALUES(123);
+  SELECT x FROM t2, t1 WHERE x BETWEEN c AND null OR x AND
+  x IN ((SELECT x FROM (SELECT x FROM t2, t1 
+  WHERE x BETWEEN (SELECT x FROM (SELECT x COLLATE rtrim 
+  FROM t2, t1 WHERE x BETWEEN c AND null
+  OR x AND x IN (c)), t1 WHERE x BETWEEN c AND null
+  OR x AND x IN (c)) AND null
+  OR NOT EXISTS(SELECT -4.81 FROM t1, t2 WHERE x BETWEEN c AND null
+  OR x AND x IN ((SELECT x FROM (SELECT x FROM t2, t1
+  WHERE x BETWEEN (SELECT x FROM (SELECT x BETWEEN c AND null
+  OR x AND x IN (c)), t1 WHERE x BETWEEN c AND null
+  OR x AND x IN (c)) AND null
+  OR x AND x IN (c)), t1 WHERE x BETWEEN c AND null
+  OR x AND x IN (c)))) AND x IN (c)
+  ), t1 WHERE x BETWEEN c AND null
+  OR x AND x IN (c)));
+} {}
+do_execsql_test select1-18.2 {
+  DROP TABLE IF EXISTS t1;
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t1(c);
+  CREATE TABLE t2(x PRIMARY KEY, y);
+  INSERT INTO t1(c) VALUES(123);
+  INSERT INTO t2(x) VALUES(123);
+  SELECT x FROM t2, t1 WHERE x BETWEEN c AND (c+1) OR x AND
+  x IN ((SELECT x FROM (SELECT x FROM t2, t1 
+  WHERE x BETWEEN (SELECT x FROM (SELECT x COLLATE rtrim 
+  FROM t2, t1 WHERE x BETWEEN c AND (c+1)
+  OR x AND x IN (c)), t1 WHERE x BETWEEN c AND (c+1)
+  OR x AND x IN (c)) AND (c+1)
+  OR NOT EXISTS(SELECT -4.81 FROM t1, t2 WHERE x BETWEEN c AND (c+1)
+  OR x AND x IN ((SELECT x FROM (SELECT x FROM t2, t1
+  WHERE x BETWEEN (SELECT x FROM (SELECT x BETWEEN c AND (c+1)
+  OR x AND x IN (c)), t1 WHERE x BETWEEN c AND (c+1)
+  OR x AND x IN (c)) AND (c+1)
+  OR x AND x IN (c)), t1 WHERE x BETWEEN c AND (c+1)
+  OR x AND x IN (c)))) AND x IN (c)
+  ), t1 WHERE x BETWEEN c AND (c+1)
+  OR x AND x IN (c)));
+} {123}
+do_execsql_test select1-18.3 {
+  SELECT 1 FROM t1 WHERE (
+    SELECT 2 FROM t2 WHERE (
+      SELECT 3 FROM (
+        SELECT x FROM t2 WHERE x=c OR x=(SELECT x FROM (VALUES(0)))
+      ) WHERE x>c OR x=c
+    )
+  );
+} {1}
+do_execsql_test select1-18.4 {
+  SELECT 1 FROM t1, t2 WHERE (
+    SELECT 3 FROM (
+      SELECT x FROM t2 WHERE x=c OR x=(SELECT x FROM (VALUES(0)))
+    ) WHERE x>c OR x=c
+  );
+} {1}
+
+# 2019-12-17 gramfuzz find
+#
+do_execsql_test select1-19.10 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(x);
+} {}
+do_catchsql_test select1-19.20 {
+  INSERT INTO t1
+    SELECT 1,2,3,4,5,6,7
+    UNION ALL SELECT 1,2,3,4,5,6,7
+    ORDER BY 1;
+} {1 {table t1 has 1 columns but 7 values were supplied}}
+do_catchsql_test select1-19.21 {
+  INSERT INTO t1
+    SELECT 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
+    UNION ALL SELECT 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
+    ORDER BY 1;
+} {1 {table t1 has 1 columns but 15 values were supplied}}
+
+# 2020-01-01 Found by Yongheng's fuzzer
+#
+reset_db
+do_execsql_test select1-20.10 {
+  CREATE TABLE t1 (
+    a INTEGER PRIMARY KEY,
+    b AS('Y') UNIQUE
+  );
+  INSERT INTO t1(a) VALUES (10);
+  SELECT * FROM t1 JOIN t1 USING(a,b)
+   WHERE ((SELECT t1.a FROM t1 AS x GROUP BY b) AND b=0)
+      OR a = 10;
+} {10 Y}
+do_execsql_test select1-20.20 {
+  SELECT ifnull(a, max((SELECT 123))), count(a) FROM t1 ;
+} {10 1}
+
+# 2020-10-02 dbsqlfuzz find
+reset_db
+do_execsql_test select1-21.1 {
+  CREATE TABLE t1(a IMTEGES PRIMARY KEY,R);
+  CREATE TABLE t2(x UNIQUE);
+  CREATE VIEW v1a(z,y) AS SELECT x IS NULL, x FROM t2;
+  SELECT a,(+a)b,(+a)b,(+a)b,NOT EXISTS(SELECT null FROM t2),CASE z WHEN 487 THEN 992 WHEN 391 THEN 203 WHEN 10 THEN '?k<D Q' END,'' FROM t1 LEFT JOIN v1a ON z=b;
+} {}
+
+finish_test
diff --git a/test/select2.test b/test/select2.test
new file mode 100644
index 0000000000000000000000000000000000000000..35f8dd587905eafd358b23f51b78e009867cdf6a
--- /dev/null
+++ b/test/select2.test
@@ -0,0 +1,185 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the SELECT statement.
+#
+# $Id: select2.test,v 1.28 2009/01/15 15:23:59 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Create a table with some data
+#
+execsql {CREATE TABLE tbl1(f1 int, f2 int)}
+execsql {BEGIN}
+for {set i 0} {$i<=30} {incr i} {
+  execsql "INSERT INTO tbl1 VALUES([expr {$i%9}],[expr {$i%10}])"
+}
+execsql {COMMIT}
+
+# Do a second query inside a first.
+#
+do_test select2-1.1 {
+  set sql {SELECT DISTINCT f1 FROM tbl1 ORDER BY f1}
+  set r {}
+  catch {unset data}
+  db eval $sql data {
+    set f1 $data(f1)
+    lappend r $f1:
+    set sql2 "SELECT f2 FROM tbl1 WHERE f1=$f1 ORDER BY f2"
+    db eval $sql2 d2 {
+      lappend r $d2(f2)
+    }
+  }
+  set r
+} {0: 0 7 8 9 1: 0 1 8 9 2: 0 1 2 9 3: 0 1 2 3 4: 2 3 4 5: 3 4 5 6: 4 5 6 7: 5 6 7 8: 6 7 8}
+
+do_test select2-1.2 {
+  set sql {SELECT DISTINCT f1 FROM tbl1 WHERE f1>3 AND f1<5}
+  set r {}
+  db eval $sql data {
+    set f1 $data(f1)
+    lappend r $f1:
+    set sql2 "SELECT f2 FROM tbl1 WHERE f1=$f1 ORDER BY f2"
+    db eval $sql2 d2 {
+      lappend r $d2(f2)
+    }
+  }
+  set r
+} {4: 2 3 4}
+unset data
+
+# Create a largish table. Do this twice, once using the TCL cache and once
+# without.  Compare the performance to make sure things go faster with the
+# cache turned on.
+#
+ifcapable tclvar {
+  do_test select2-2.0.1 {
+    set t1 [time {
+      execsql {CREATE TABLE tbl2(f1 int, f2 int, f3 int); BEGIN;}
+      for {set i 1} {$i<=30000} {incr i} {
+        set i2 [expr {$i*2}]
+        set i3 [expr {$i*3}]
+        db eval {INSERT INTO tbl2 VALUES($i,$i2,$i3)}
+      }
+      execsql {COMMIT}
+    }]
+    list
+  } {}
+  puts "time with cache: $::t1"
+}
+catch {execsql {DROP TABLE tbl2}}
+do_test select2-2.0.2 {
+  set t2 [time {
+    execsql {CREATE TABLE tbl2(f1 int, f2 int, f3 int); BEGIN;}
+    for {set i 1} {$i<=30000} {incr i} {
+      set i2 [expr {$i*2}]
+      set i3 [expr {$i*3}]
+      execsql "INSERT INTO tbl2 VALUES($i,$i2,$i3)"
+    }
+    execsql {COMMIT}
+  }]
+  list
+} {}
+puts "time without cache: $t2"
+#ifcapable tclvar {
+#  do_test select2-2.0.3 {
+#    expr {[lindex $t1 0]<[lindex $t2 0]}
+#  } 1
+#}
+
+do_test select2-2.1 {
+  execsql {SELECT count(*) FROM tbl2}
+} {30000}
+do_test select2-2.2 {
+  execsql {SELECT count(*) FROM tbl2 WHERE f2>1000}
+} {29500}
+
+do_test select2-3.1 {
+  execsql {SELECT f1 FROM tbl2 WHERE 1000=f2}
+} {500}
+
+do_test select2-3.2a {
+  execsql {CREATE INDEX idx1 ON tbl2(f2)}
+} {}
+do_test select2-3.2b {
+  execsql {SELECT f1 FROM tbl2 WHERE 1000=f2}
+} {500}
+do_test select2-3.2c {
+  execsql {SELECT f1 FROM tbl2 WHERE f2=1000}
+} {500}
+do_test select2-3.2d {
+  set sqlite_search_count 0
+  execsql {SELECT * FROM tbl2 WHERE 1000=f2}
+  set sqlite_search_count
+} {3}
+do_test select2-3.2e {
+  set sqlite_search_count 0
+  execsql {SELECT * FROM tbl2 WHERE f2=1000}
+  set sqlite_search_count
+} {3}
+
+# Make sure queries run faster with an index than without
+#
+do_test select2-3.3 {
+  execsql {DROP INDEX idx1}
+  set sqlite_search_count 0
+  execsql {SELECT f1 FROM tbl2 WHERE f2==2000}
+  set sqlite_search_count
+} {29999}
+
+# Make sure we can optimize functions in the WHERE clause that
+# use fields from two or more different table.  (Bug #6)
+#
+do_test select2-4.1 {
+  execsql {
+    CREATE TABLE aa(a);
+    CREATE TABLE bb(b);
+    INSERT INTO aa VALUES(1);
+    INSERT INTO aa VALUES(3);
+    INSERT INTO bb VALUES(2);
+    INSERT INTO bb VALUES(4);
+    SELECT * FROM aa, bb WHERE max(a,b)>2;
+  }
+} {1 4 3 2 3 4}
+do_test select2-4.2 {
+  execsql {
+    INSERT INTO bb VALUES(0);
+    SELECT * FROM aa CROSS JOIN bb WHERE b;
+  }
+} {1 2 1 4 3 2 3 4}
+do_test select2-4.3 {
+  execsql {
+    SELECT * FROM aa CROSS JOIN bb WHERE NOT b;
+  }
+} {1 0 3 0}
+do_test select2-4.4 {
+  execsql {
+    SELECT * FROM aa, bb WHERE min(a,b);
+  }
+} {1 2 1 4 3 2 3 4}
+do_test select2-4.5 {
+  execsql {
+    SELECT * FROM aa, bb WHERE NOT min(a,b);
+  }
+} {1 0 3 0}
+do_test select2-4.6 {
+  execsql {
+    SELECT * FROM aa, bb WHERE CASE WHEN a=b-1 THEN 1 END;
+  }
+} {1 2 3 4}
+do_test select2-4.7 {
+  execsql {
+    SELECT * FROM aa, bb WHERE CASE WHEN a=b-1 THEN 0 ELSE 1 END;
+  }
+} {1 4 1 0 3 2 3 0}
+
+finish_test
diff --git a/test/select3.test b/test/select3.test
new file mode 100644
index 0000000000000000000000000000000000000000..4bbd70cc75544ba5955c00e12f97b826473d274b
--- /dev/null
+++ b/test/select3.test
@@ -0,0 +1,436 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing aggregate functions and the
+# GROUP BY and HAVING clauses of SELECT statements.
+#
+# $Id: select3.test,v 1.23 2008/01/16 18:20:42 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Build some test data
+#
+do_test select3-1.0 {
+  execsql {
+    CREATE TABLE t1(n int, log int);
+    BEGIN;
+  }
+  for {set i 1} {$i<32} {incr i} {
+    for {set j 0} {(1<<$j)<$i} {incr j} {}
+    execsql "INSERT INTO t1 VALUES($i,$j)"
+  }
+  execsql {
+    COMMIT
+  }
+  execsql {SELECT DISTINCT log FROM t1 ORDER BY log}
+} {0 1 2 3 4 5}
+
+# Basic aggregate functions.
+#
+do_test select3-1.1 {
+  execsql {SELECT count(*) FROM t1}
+} {31}
+do_test select3-1.2 {
+  execsql {
+    SELECT min(n),min(log),max(n),max(log),sum(n),sum(log),avg(n),avg(log)
+    FROM t1
+  }
+} {1 0 31 5 496 124 16.0 4.0}
+do_test select3-1.3 {
+  execsql {SELECT max(n)/avg(n), max(log)/avg(log) FROM t1}
+} {1.9375 1.25}
+
+# Try some basic GROUP BY clauses
+#
+do_test select3-2.1 {
+  execsql {SELECT log, count(*) FROM t1 GROUP BY log ORDER BY log}
+} {0 1 1 1 2 2 3 4 4 8 5 15}
+do_test select3-2.2 {
+  execsql {SELECT log, min(n) FROM t1 GROUP BY log ORDER BY log}
+} {0 1 1 2 2 3 3 5 4 9 5 17}
+do_test select3-2.3.1 {
+  execsql {SELECT log, avg(n) FROM t1 GROUP BY log ORDER BY log}
+} {0 1.0 1 2.0 2 3.5 3 6.5 4 12.5 5 24.0}
+do_test select3-2.3.2 {
+  execsql {SELECT log, avg(n)+1 FROM t1 GROUP BY log ORDER BY log}
+} {0 2.0 1 3.0 2 4.5 3 7.5 4 13.5 5 25.0}
+do_test select3-2.4 {
+  execsql {SELECT log, avg(n)-min(n) FROM t1 GROUP BY log ORDER BY log}
+} {0 0.0 1 0.0 2 0.5 3 1.5 4 3.5 5 7.0}
+do_test select3-2.5 {
+  execsql {SELECT log*2+1, avg(n)-min(n) FROM t1 GROUP BY log ORDER BY log}
+} {1 0.0 3 0.0 5 0.5 7 1.5 9 3.5 11 7.0}
+do_test select3-2.6 {
+  execsql {
+    SELECT log*2+1 as x, count(*) FROM t1 GROUP BY x ORDER BY x
+  }
+} {1 1 3 1 5 2 7 4 9 8 11 15}
+do_test select3-2.7 {
+  execsql {
+    SELECT log*2+1 AS x, count(*) AS y FROM t1 GROUP BY x ORDER BY y, x
+  }
+} {1 1 3 1 5 2 7 4 9 8 11 15}
+do_test select3-2.8 {
+  execsql {
+    SELECT log*2+1 AS x, count(*) AS y FROM t1 GROUP BY x ORDER BY 10-(x+y)
+  }
+} {11 15 9 8 7 4 5 2 3 1 1 1}
+#do_test select3-2.9 {
+#  catchsql {
+#    SELECT log, count(*) FROM t1 GROUP BY 'x' ORDER BY log;
+#  }
+#} {1 {GROUP BY terms must not be non-integer constants}}
+do_test select3-2.10 {
+  catchsql {
+    SELECT log, count(*) FROM t1 GROUP BY 0 ORDER BY log;
+  }
+} {1 {1st GROUP BY term out of range - should be between 1 and 2}}
+do_test select3-2.11 {
+  catchsql {
+    SELECT log, count(*) FROM t1 GROUP BY 3 ORDER BY log;
+  }
+} {1 {1st GROUP BY term out of range - should be between 1 and 2}}
+do_test select3-2.12 {
+  catchsql {
+    SELECT log, count(*) FROM t1 GROUP BY 1 ORDER BY log;
+  }
+} {0 {0 1 1 1 2 2 3 4 4 8 5 15}}
+
+# Cannot have an empty GROUP BY
+do_test select3-2.13 {
+  catchsql {
+    SELECT log, count(*) FROM t1 GROUP BY ORDER BY log;
+  }
+} {1 {near "ORDER": syntax error}}
+do_test select3-2.14 {
+  catchsql {
+    SELECT log, count(*) FROM t1 GROUP BY;
+  }
+} {1 {near ";": syntax error}}
+
+# Cannot have a HAVING without a GROUP BY
+# 
+# Update: As of 3.39.0, you can.
+#
+do_execsql_test select3-3.1 {
+  SELECT log, count(*) FROM t1 HAVING log>=4
+} {}
+do_execsql_test select3-3.2 {
+  SELECT count(*) FROM t1 HAVING log>=4
+} {}
+do_execsql_test select3-3.3 {
+  SELECT count(*) FROM t1 HAVING log!=400
+} {31}
+
+# Toss in some HAVING clauses
+#
+do_test select3-4.1 {
+  execsql {SELECT log, count(*) FROM t1 GROUP BY log HAVING log>=4 ORDER BY log}
+} {4 8 5 15}
+do_test select3-4.2 {
+  execsql {
+    SELECT log, count(*) FROM t1 
+    GROUP BY log 
+    HAVING count(*)>=4 
+    ORDER BY log
+  }
+} {3 4 4 8 5 15}
+do_test select3-4.3 {
+  execsql {
+    SELECT log, count(*) FROM t1 
+    GROUP BY log 
+    HAVING count(*)>=4 
+    ORDER BY max(n)+0
+  }
+} {3 4 4 8 5 15}
+do_test select3-4.4 {
+  execsql {
+    SELECT log AS x, count(*) AS y FROM t1 
+    GROUP BY x
+    HAVING y>=4 
+    ORDER BY max(n)+0
+  }
+} {3 4 4 8 5 15}
+do_test select3-4.5 {
+  execsql {
+    SELECT log AS x FROM t1 
+    GROUP BY x
+    HAVING count(*)>=4 
+    ORDER BY max(n)+0
+  }
+} {3 4 5}
+
+do_test select3-5.1 {
+  execsql {
+    SELECT log, count(*), avg(n), max(n+log*2) FROM t1 
+    GROUP BY log 
+    ORDER BY max(n+log*2)+0, avg(n)+0
+  }
+} {0 1 1.0 1 1 1 2.0 4 2 2 3.5 8 3 4 6.5 14 4 8 12.5 24 5 15 24.0 41}
+do_test select3-5.2 {
+  execsql {
+    SELECT log, count(*), avg(n), max(n+log*2) FROM t1 
+    GROUP BY log 
+    ORDER BY max(n+log*2)+0, min(log,avg(n))+0
+  }
+} {0 1 1.0 1 1 1 2.0 4 2 2 3.5 8 3 4 6.5 14 4 8 12.5 24 5 15 24.0 41}
+
+# Test sorting of GROUP BY results in the presence of an index
+# on the GROUP BY column.
+#
+do_test select3-6.1 {
+  execsql {
+    SELECT log, min(n) FROM t1 GROUP BY log ORDER BY log;
+  }
+} {0 1 1 2 2 3 3 5 4 9 5 17}
+do_test select3-6.2 {
+  execsql {
+    SELECT log, min(n) FROM t1 GROUP BY log ORDER BY log DESC;
+  }
+} {5 17 4 9 3 5 2 3 1 2 0 1}
+do_test select3-6.3 {
+  execsql {
+    SELECT log, min(n) FROM t1 GROUP BY log ORDER BY 1;
+  }
+} {0 1 1 2 2 3 3 5 4 9 5 17}
+do_test select3-6.4 {
+  execsql {
+    SELECT log, min(n) FROM t1 GROUP BY log ORDER BY 1 DESC;
+  }
+} {5 17 4 9 3 5 2 3 1 2 0 1}
+do_test select3-6.5 {
+  execsql {
+    CREATE INDEX i1 ON t1(log);
+    SELECT log, min(n) FROM t1 GROUP BY log ORDER BY log;
+  }
+} {0 1 1 2 2 3 3 5 4 9 5 17}
+do_test select3-6.6 {
+  execsql {
+    SELECT log, min(n) FROM t1 GROUP BY log ORDER BY log DESC;
+  }
+} {5 17 4 9 3 5 2 3 1 2 0 1}
+do_test select3-6.7 {
+  execsql {
+    SELECT log, min(n) FROM t1 GROUP BY log ORDER BY 1;
+  }
+} {0 1 1 2 2 3 3 5 4 9 5 17}
+do_test select3-6.8 {
+  execsql {
+    SELECT log, min(n) FROM t1 GROUP BY log ORDER BY 1 DESC;
+  }
+} {5 17 4 9 3 5 2 3 1 2 0 1}
+
+# Sometimes an aggregate query can return no rows at all.
+#
+do_test select3-7.1 {
+  execsql {
+    CREATE TABLE t2(a,b);
+    INSERT INTO t2 VALUES(1,2);
+    SELECT a, sum(b) FROM t2 WHERE b=5 GROUP BY a;
+  }
+} {}
+do_test select3-7.2 {
+  execsql {
+    SELECT a, sum(b) FROM t2 WHERE b=5;
+  }
+} {{} {}}
+
+# If a table column is of type REAL but we are storing integer values
+# in it, the values are stored as integers to take up less space.  The
+# values are converted by to REAL as they are read out of the table.
+# Make sure the GROUP BY clause does this conversion correctly.
+# Ticket #2251.
+#
+do_test select3-8.1 {
+  execsql {
+    CREATE TABLE A (
+      A1 DOUBLE,
+      A2 VARCHAR COLLATE NOCASE,
+      A3 DOUBLE
+    );
+    INSERT INTO A VALUES(39136,'ABC',1201900000);
+    INSERT INTO A VALUES(39136,'ABC',1207000000);
+    SELECT typeof(sum(a3)) FROM a;
+  }
+} {real}
+do_test select3-8.2 {
+  execsql {
+    SELECT typeof(sum(a3)) FROM a GROUP BY a1;
+  }
+} {real}
+
+# 2019-05-09 ticket https://www.sqlite.org/src/tktview/6c1d3febc00b22d457c7
+#
+unset -nocomplain x
+foreach {id x} {
+  100 127
+  101 128
+  102 -127
+  103 -128
+  104 -129
+  110 32767
+  111 32768
+  112 -32767
+  113 -32768
+  114 -32769
+  120 2147483647
+  121 2147483648
+  122 -2147483647
+  123 -2147483648
+  124 -2147483649
+  130 140737488355327
+  131 140737488355328
+  132 -140737488355327
+  133 -140737488355328
+  134 -140737488355329
+  140 9223372036854775807
+  141 -9223372036854775807
+  142 -9223372036854775808
+  143 9223372036854775806
+  144 9223372036854775805
+  145 -9223372036854775806
+  146 -9223372036854775805
+
+} {
+  set x [expr {$x+0}]
+  do_execsql_test select3-8.$id {
+     DROP TABLE IF EXISTS t1;
+     CREATE TABLE t1 (c0, c1 REAL PRIMARY KEY);
+     INSERT INTO t1(c0, c1) VALUES (0, $x), (0, 0);
+     UPDATE t1 SET c0 = NULL;
+     UPDATE OR REPLACE t1 SET c1 = 1;
+     SELECT DISTINCT * FROM t1 WHERE (t1.c0 IS NULL);
+     PRAGMA integrity_check;
+  } {{} 1.0 ok}
+}
+
+# 2020-03-10 ticket e0c2ad1aa8a9c691
+reset_db
+do_execsql_test select3-9.100 {
+  CREATE TABLE t0(c0 REAL, c1 REAL GENERATED ALWAYS AS (c0));
+  INSERT INTO t0(c0) VALUES (1);
+  SELECT * FROM t0 GROUP BY c0;
+} {1.0 1.0}
+
+reset_db
+do_execsql_test select3.10.100 {
+  CREATE TABLE t1(a, b);
+  CREATE TABLE t2(c, d);
+  SELECT max(t1.a), 
+         (SELECT 'xyz' FROM (SELECT * FROM t2 WHERE 0) WHERE t1.b=1) 
+  FROM t1;
+} {{} {}}
+
+#-------------------------------------------------------------------------
+# dbsqlfuzz crash-8e17857db2c5a9294c975123ac807156a6559f13.txt
+# Associated with the flatten-left-join branch circa 2022-06-23.
+#
+foreach {tn sql} {
+  1 {
+    CREATE TABLE t1(a TEXT);
+    CREATE TABLE t2(x INT);
+    CREATE INDEX t2x ON t2(x);
+    INSERT INTO t1 VALUES('abc');
+  }
+  2 {
+    CREATE TABLE t1(a TEXT);
+    CREATE TABLE t2(x INT);
+    INSERT INTO t1 VALUES('abc');
+  }
+  3 {
+    CREATE TABLE t1(a TEXT);
+    CREATE TABLE t2(x INT);
+    INSERT INTO t1 VALUES('abc');
+    PRAGMA automatic_index=OFF;
+  }
+} {
+  reset_db
+  do_execsql_test select3-11.$tn.1 $sql 
+  do_execsql_test select3.11.$tn.2 {
+    SELECT max(a), val FROM t1 LEFT JOIN (
+        SELECT 'constant' AS val FROM t2 WHERE x=1234
+    )
+  } {abc {}}
+  do_execsql_test select3.11.$tn.3 {
+    INSERT INTO t2 VALUES(123);
+    SELECT max(a), val FROM t1 LEFT JOIN (
+        SELECT 'constant' AS val FROM t2 WHERE x=1234
+    )
+  } {abc {}}
+  do_execsql_test select3.11.$tn.4 {
+    INSERT INTO t2 VALUES(1234);
+    SELECT max(a), val FROM t1 LEFT JOIN (
+        SELECT 'constant' AS val FROM t2 WHERE x=1234
+    )
+  } {abc constant}
+}
+
+reset_db
+do_execsql_test 12.0 {
+  CREATE TABLE t1(a);
+  CREATE TABLE t2(x);
+}
+do_execsql_test 12.1 {
+  SELECT count(x), m FROM t1 LEFT JOIN (SELECT x, 59 AS m FROM t2) GROUP BY a;
+}
+do_execsql_test 12.2 {
+  INSERT INTO t1 VALUES(1), (1), (2), (3);
+  SELECT count(x), m FROM t1 LEFT JOIN (SELECT x, 59 AS m FROM t2) GROUP BY a;
+} {
+  0 {}
+  0 {}
+  0 {}
+}
+do_execsql_test 12.3 {
+  INSERT INTO t2 VALUES(45);
+  SELECT count(x), m FROM t1 LEFT JOIN (SELECT x, 59 AS m FROM t2) GROUP BY a;
+} {
+  2 59
+  1 59
+  1 59
+}
+do_execsql_test 12.4 {
+  INSERT INTO t2 VALUES(210);
+  SELECT count(x), m FROM t1 LEFT JOIN (SELECT x, 59 AS m FROM t2) GROUP BY a;
+} {
+  4 59
+  2 59
+  2 59
+}
+do_execsql_test 12.5 {
+  INSERT INTO t2 VALUES(NULL);
+  SELECT count(x), m FROM t1 LEFT JOIN (SELECT x, 59 AS m FROM t2) GROUP BY a;
+} {
+  4 59
+  2 59
+  2 59
+}
+do_execsql_test 12.6 {
+  DELETE FROM t2;
+  DELETE FROM t1;
+  INSERT INTO t1 VALUES('value');
+  INSERT INTO t2 VALUES('hello');
+} {}
+do_execsql_test 12.7 {
+  SELECT group_concat(x), m FROM t1 
+    LEFT JOIN (SELECT x, 59 AS m FROM t2) GROUP BY a;
+} {
+  hello 59
+}
+do_execsql_test 12.8 {
+  SELECT group_concat(x), m, n FROM t1 
+    LEFT JOIN (SELECT x, 59 AS m, 60 AS n FROM t2) GROUP BY a;
+} {
+  hello 59 60
+}
+
+finish_test
diff --git a/test/select4.test b/test/select4.test
new file mode 100644
index 0000000000000000000000000000000000000000..d49708ece87ce49907477bf8da2b47737b147430
--- /dev/null
+++ b/test/select4.test
@@ -0,0 +1,1043 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing UNION, INTERSECT and EXCEPT operators
+# in SELECT statements.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Most tests in this file depend on compound-select. But there are a couple
+# right at the end that test DISTINCT, so we cannot omit the entire file.
+#
+ifcapable compound {
+
+# Build some test data
+#
+execsql {
+  CREATE TABLE t1(n int, log int);
+  BEGIN;
+}
+for {set i 1} {$i<32} {incr i} {
+  for {set j 0} {(1<<$j)<$i} {incr j} {}
+  execsql "INSERT INTO t1 VALUES($i,$j)"
+}
+execsql {
+  COMMIT;
+}
+
+do_test select4-1.0 {
+  execsql {SELECT DISTINCT log FROM t1 ORDER BY log}
+} {0 1 2 3 4 5}
+
+# Union All operator
+#
+do_test select4-1.1a {
+  lsort [execsql {SELECT DISTINCT log FROM t1}]
+} {0 1 2 3 4 5}
+do_test select4-1.1b {
+  lsort [execsql {SELECT n FROM t1 WHERE log=3}]
+} {5 6 7 8}
+do_test select4-1.1c {
+  execsql {
+    SELECT DISTINCT log FROM t1
+    UNION ALL
+    SELECT n FROM t1 WHERE log=3
+    ORDER BY log;
+  }
+} {0 1 2 3 4 5 5 6 7 8}
+do_test select4-1.1d {
+  execsql {
+    CREATE TABLE t2 AS
+      SELECT DISTINCT log FROM t1
+      UNION ALL
+      SELECT n FROM t1 WHERE log=3
+      ORDER BY log;
+    SELECT * FROM t2;
+  }
+} {0 1 2 3 4 5 5 6 7 8}
+execsql {DROP TABLE t2}
+do_test select4-1.1e {
+  execsql {
+    CREATE TABLE t2 AS
+      SELECT DISTINCT log FROM t1
+      UNION ALL
+      SELECT n FROM t1 WHERE log=3
+      ORDER BY log DESC;
+    SELECT * FROM t2;
+  }
+} {8 7 6 5 5 4 3 2 1 0}
+execsql {DROP TABLE t2}
+do_test select4-1.1f {
+  execsql {
+    SELECT DISTINCT log FROM t1
+    UNION ALL
+    SELECT n FROM t1 WHERE log=2
+  }
+} {0 1 2 3 4 5 3 4}
+do_test select4-1.1g {
+  execsql {
+    CREATE TABLE t2 AS 
+      SELECT DISTINCT log FROM t1
+      UNION ALL
+      SELECT n FROM t1 WHERE log=2;
+    SELECT * FROM t2;
+  }
+} {0 1 2 3 4 5 3 4}
+execsql {DROP TABLE t2}
+ifcapable subquery {
+  do_test select4-1.2 {
+    execsql {
+      SELECT log FROM t1 WHERE n IN 
+        (SELECT DISTINCT log FROM t1 UNION ALL
+         SELECT n FROM t1 WHERE log=3)
+      ORDER BY log;
+    }
+  } {0 1 2 2 3 3 3 3}
+}
+
+# EVIDENCE-OF: R-02644-22131 In a compound SELECT statement, only the
+# last or right-most simple SELECT may have an ORDER BY clause.
+#
+do_test select4-1.3 {
+  set v [catch {execsql {
+    SELECT DISTINCT log FROM t1 ORDER BY log
+    UNION ALL
+    SELECT n FROM t1 WHERE log=3
+    ORDER BY log;
+  }} msg]
+  lappend v $msg
+} {1 {ORDER BY clause should come after UNION ALL not before}}
+do_catchsql_test select4-1.4 {
+  SELECT (VALUES(0) INTERSECT SELECT(0) UNION SELECT(0) ORDER BY 1 UNION
+          SELECT 0 UNION SELECT 0 ORDER BY 1);
+} {1 {ORDER BY clause should come after UNION not before}}
+
+# Union operator
+#
+do_test select4-2.1 {
+  execsql {
+    SELECT DISTINCT log FROM t1
+    UNION
+    SELECT n FROM t1 WHERE log=3
+    ORDER BY log;
+  }
+} {0 1 2 3 4 5 6 7 8}
+ifcapable subquery {
+  do_test select4-2.2 {
+    execsql {
+      SELECT log FROM t1 WHERE n IN 
+        (SELECT DISTINCT log FROM t1 UNION
+         SELECT n FROM t1 WHERE log=3)
+      ORDER BY log;
+    }
+  } {0 1 2 2 3 3 3 3}
+}
+do_test select4-2.3 {
+  set v [catch {execsql {
+    SELECT DISTINCT log FROM t1 ORDER BY log
+    UNION
+    SELECT n FROM t1 WHERE log=3
+    ORDER BY log;
+  }} msg]
+  lappend v $msg
+} {1 {ORDER BY clause should come after UNION not before}}
+do_test select4-2.4 {
+  set v [catch {execsql {
+    SELECT 0 ORDER BY (SELECT 0) UNION SELECT 0;
+  }} msg]
+  lappend v $msg
+} {1 {ORDER BY clause should come after UNION not before}}
+do_execsql_test select4-2.5 {
+  SELECT 123 AS x ORDER BY (SELECT x ORDER BY 1);
+} {123}
+
+# Except operator
+#
+do_test select4-3.1.1 {
+  execsql {
+    SELECT DISTINCT log FROM t1
+    EXCEPT
+    SELECT n FROM t1 WHERE log=3
+    ORDER BY log;
+  }
+} {0 1 2 3 4}
+do_test select4-3.1.2 {
+  execsql {
+    CREATE TABLE t2 AS 
+      SELECT DISTINCT log FROM t1
+      EXCEPT
+      SELECT n FROM t1 WHERE log=3
+      ORDER BY log;
+    SELECT * FROM t2;
+  }
+} {0 1 2 3 4}
+execsql {DROP TABLE t2}
+do_test select4-3.1.3 {
+  execsql {
+    CREATE TABLE t2 AS 
+      SELECT DISTINCT log FROM t1
+      EXCEPT
+      SELECT n FROM t1 WHERE log=3
+      ORDER BY log DESC;
+    SELECT * FROM t2;
+  }
+} {4 3 2 1 0}
+execsql {DROP TABLE t2}
+ifcapable subquery {
+  do_test select4-3.2 {
+    execsql {
+      SELECT log FROM t1 WHERE n IN 
+        (SELECT DISTINCT log FROM t1 EXCEPT
+         SELECT n FROM t1 WHERE log=3)
+      ORDER BY log;
+    }
+  } {0 1 2 2}
+}
+do_test select4-3.3 {
+  set v [catch {execsql {
+    SELECT DISTINCT log FROM t1 ORDER BY log
+    EXCEPT
+    SELECT n FROM t1 WHERE log=3
+    ORDER BY log;
+  }} msg]
+  lappend v $msg
+} {1 {ORDER BY clause should come after EXCEPT not before}}
+
+# Intersect operator
+#
+do_test select4-4.1.1 {
+  execsql {
+    SELECT DISTINCT log FROM t1
+    INTERSECT
+    SELECT n FROM t1 WHERE log=3
+    ORDER BY log;
+  }
+} {5}
+
+do_test select4-4.1.2 {
+  execsql {
+    SELECT DISTINCT log FROM t1
+    UNION ALL
+    SELECT 6
+    INTERSECT
+    SELECT n FROM t1 WHERE log=3
+    ORDER BY t1.log;
+  }
+} {5 6}
+
+do_test select4-4.1.3 {
+  execsql {
+    CREATE TABLE t2 AS
+      SELECT DISTINCT log FROM t1 UNION ALL SELECT 6
+      INTERSECT
+      SELECT n FROM t1 WHERE log=3
+      ORDER BY log;
+    SELECT * FROM t2;
+  }
+} {5 6}
+execsql {DROP TABLE t2}
+do_test select4-4.1.4 {
+  execsql {
+    CREATE TABLE t2 AS
+      SELECT DISTINCT log FROM t1 UNION ALL SELECT 6
+      INTERSECT
+      SELECT n FROM t1 WHERE log=3
+      ORDER BY log DESC;
+    SELECT * FROM t2;
+  }
+} {6 5}
+execsql {DROP TABLE t2}
+ifcapable subquery {
+  do_test select4-4.2 {
+    execsql {
+      SELECT log FROM t1 WHERE n IN 
+        (SELECT DISTINCT log FROM t1 INTERSECT
+         SELECT n FROM t1 WHERE log=3)
+      ORDER BY log;
+    }
+  } {3}
+}
+do_test select4-4.3 {
+  set v [catch {execsql {
+    SELECT DISTINCT log FROM t1 ORDER BY log
+    INTERSECT
+    SELECT n FROM t1 WHERE log=3
+    ORDER BY log;
+  }} msg]
+  lappend v $msg
+} {1 {ORDER BY clause should come after INTERSECT not before}}
+do_catchsql_test select4-4.4 {
+  SELECT 3 IN (
+    SELECT 0 ORDER BY 1
+    INTERSECT
+    SELECT 1
+    INTERSECT 
+    SELECT 2
+    ORDER BY 1
+  );
+} {1 {ORDER BY clause should come after INTERSECT not before}}
+
+# Various error messages while processing UNION or INTERSECT
+#
+do_test select4-5.1 {
+  set v [catch {execsql {
+    SELECT DISTINCT log FROM t2
+    UNION ALL
+    SELECT n FROM t1 WHERE log=3
+    ORDER BY log;
+  }} msg]
+  lappend v $msg
+} {1 {no such table: t2}}
+do_test select4-5.2 {
+  set v [catch {execsql {
+    SELECT DISTINCT log AS "xyzzy" FROM t1
+    UNION ALL
+    SELECT n FROM t1 WHERE log=3
+    ORDER BY xyzzy;
+  }} msg]
+  lappend v $msg
+} {0 {0 1 2 3 4 5 5 6 7 8}}
+do_test select4-5.2b {
+  set v [catch {execsql {
+    SELECT DISTINCT log AS xyzzy FROM t1
+    UNION ALL
+    SELECT n FROM t1 WHERE log=3
+    ORDER BY "xyzzy";
+  }} msg]
+  lappend v $msg
+} {0 {0 1 2 3 4 5 5 6 7 8}}
+do_test select4-5.2c {
+  set v [catch {execsql {
+    SELECT DISTINCT log FROM t1
+    UNION ALL
+    SELECT n FROM t1 WHERE log=3
+    ORDER BY "xyzzy";
+  }} msg]
+  lappend v $msg
+} {1 {1st ORDER BY term does not match any column in the result set}}
+do_test select4-5.2d {
+  set v [catch {execsql {
+    SELECT DISTINCT log FROM t1
+    INTERSECT
+    SELECT n FROM t1 WHERE log=3
+    ORDER BY "xyzzy";
+  }} msg]
+  lappend v $msg
+} {1 {1st ORDER BY term does not match any column in the result set}}
+do_test select4-5.2e {
+  set v [catch {execsql {
+    SELECT DISTINCT log FROM t1
+    UNION ALL
+    SELECT n FROM t1 WHERE log=3
+    ORDER BY n;
+  }} msg]
+  lappend v $msg
+} {0 {0 1 2 3 4 5 5 6 7 8}}
+do_test select4-5.2f {
+  catchsql {
+    SELECT DISTINCT log FROM t1
+    UNION ALL
+    SELECT n FROM t1 WHERE log=3
+    ORDER BY log;
+  }
+} {0 {0 1 2 3 4 5 5 6 7 8}}
+do_test select4-5.2g {
+  catchsql {
+    SELECT DISTINCT log FROM t1
+    UNION ALL
+    SELECT n FROM t1 WHERE log=3
+    ORDER BY 1;
+  }
+} {0 {0 1 2 3 4 5 5 6 7 8}}
+do_test select4-5.2h {
+  catchsql {
+    SELECT DISTINCT log FROM t1
+    UNION ALL
+    SELECT n FROM t1 WHERE log=3
+    ORDER BY 2;
+  }
+} {1 {1st ORDER BY term out of range - should be between 1 and 1}}
+do_test select4-5.2i {
+  catchsql {
+    SELECT DISTINCT 1, log FROM t1
+    UNION ALL
+    SELECT 2, n FROM t1 WHERE log=3
+    ORDER BY 2, 1;
+  }
+} {0 {1 0 1 1 1 2 1 3 1 4 1 5 2 5 2 6 2 7 2 8}}
+do_test select4-5.2j {
+  catchsql {
+    SELECT DISTINCT 1, log FROM t1
+    UNION ALL
+    SELECT 2, n FROM t1 WHERE log=3
+    ORDER BY 1, 2 DESC;
+  }
+} {0 {1 5 1 4 1 3 1 2 1 1 1 0 2 8 2 7 2 6 2 5}}
+do_test select4-5.2k {
+  catchsql {
+    SELECT DISTINCT 1, log FROM t1
+    UNION ALL
+    SELECT 2, n FROM t1 WHERE log=3
+    ORDER BY n, 1;
+  }
+} {0 {1 0 1 1 1 2 1 3 1 4 1 5 2 5 2 6 2 7 2 8}}
+do_test select4-5.3 {
+  set v [catch {execsql {
+    SELECT DISTINCT log, n FROM t1
+    UNION ALL
+    SELECT n FROM t1 WHERE log=3
+    ORDER BY log;
+  }} msg]
+  lappend v $msg
+} {1 {SELECTs to the left and right of UNION ALL do not have the same number of result columns}}
+do_test select4-5.3-3807-1 {
+  catchsql {
+    SELECT 1 UNION SELECT 2, 3 UNION SELECT 4, 5 ORDER BY 1;
+  }
+} {1 {SELECTs to the left and right of UNION do not have the same number of result columns}}
+do_test select4-5.4 {
+  set v [catch {execsql {
+    SELECT log FROM t1 WHERE n=2
+    UNION ALL
+    SELECT log FROM t1 WHERE n=3
+    UNION ALL
+    SELECT log FROM t1 WHERE n=4
+    UNION ALL
+    SELECT log FROM t1 WHERE n=5
+    ORDER BY log;
+  }} msg]
+  lappend v $msg
+} {0 {1 2 2 3}}
+
+do_test select4-6.1 {
+  execsql {
+    SELECT log, count(*) as cnt FROM t1 GROUP BY log
+    UNION
+    SELECT log, n FROM t1 WHERE n=7
+    ORDER BY cnt, log;
+  }
+} {0 1 1 1 2 2 3 4 3 7 4 8 5 15}
+do_test select4-6.2 {
+  execsql {
+    SELECT log, count(*) FROM t1 GROUP BY log
+    UNION
+    SELECT log, n FROM t1 WHERE n=7
+    ORDER BY count(*), log;
+  }
+} {0 1 1 1 2 2 3 4 3 7 4 8 5 15}
+
+# NULLs are indistinct for the UNION operator.
+# Make sure the UNION operator recognizes this
+#
+do_test select4-6.3 {
+  execsql {
+    SELECT NULL UNION SELECT NULL UNION
+    SELECT 1 UNION SELECT 2 AS 'x'
+    ORDER BY x;
+  }
+} {{} 1 2}
+do_test select4-6.3.1 {
+  execsql {
+    SELECT NULL UNION ALL SELECT NULL UNION ALL
+    SELECT 1 UNION ALL SELECT 2 AS 'x'
+    ORDER BY x;
+  }
+} {{} {} 1 2}
+
+# Make sure the DISTINCT keyword treats NULLs as indistinct.
+#
+ifcapable subquery {
+  do_test select4-6.4 {
+    execsql {
+      SELECT * FROM (
+         SELECT NULL, 1 UNION ALL SELECT NULL, 1
+      );
+    }
+  } {{} 1 {} 1}
+  do_test select4-6.5 {
+    execsql {
+      SELECT DISTINCT * FROM (
+         SELECT NULL, 1 UNION ALL SELECT NULL, 1
+      );
+    }
+  } {{} 1}
+  do_test select4-6.6 {
+    execsql {
+      SELECT DISTINCT * FROM (
+         SELECT 1,2  UNION ALL SELECT 1,2
+      );
+    }
+  } {1 2}
+}
+
+# Test distinctness of NULL in other ways.
+#
+do_test select4-6.7 {
+  execsql {
+    SELECT NULL EXCEPT SELECT NULL
+  }
+} {}
+
+
+# Make sure column names are correct when a compound select appears as
+# an expression in the WHERE clause.
+#
+do_test select4-7.1 {
+  execsql {
+    CREATE TABLE t2 AS SELECT log AS 'x', count(*) AS 'y' FROM t1 GROUP BY log;
+    SELECT * FROM t2 ORDER BY x;
+  }
+} {0 1 1 1 2 2 3 4 4 8 5 15}  
+ifcapable subquery {
+  do_test select4-7.2 {
+    execsql2 {
+      SELECT * FROM t1 WHERE n IN (SELECT n FROM t1 INTERSECT SELECT x FROM t2)
+      ORDER BY n
+    }
+  } {n 1 log 0 n 2 log 1 n 3 log 2 n 4 log 2 n 5 log 3}
+  do_test select4-7.3 {
+    execsql2 {
+      SELECT * FROM t1 WHERE n IN (SELECT n FROM t1 EXCEPT SELECT x FROM t2)
+      ORDER BY n LIMIT 2
+    }
+  } {n 6 log 3 n 7 log 3}
+  do_test select4-7.4 {
+    execsql2 {
+      SELECT * FROM t1 WHERE n IN (SELECT n FROM t1 UNION SELECT x FROM t2)
+      ORDER BY n LIMIT 2
+    }
+  } {n 1 log 0 n 2 log 1}
+} ;# ifcapable subquery
+
+} ;# ifcapable compound
+
+# Make sure DISTINCT works appropriately on TEXT and NUMERIC columns.
+do_test select4-8.1 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t3(a text, b float, c text);
+    INSERT INTO t3 VALUES(1, 1.1, '1.1');
+    INSERT INTO t3 VALUES(2, 1.10, '1.10');
+    INSERT INTO t3 VALUES(3, 1.10, '1.1');
+    INSERT INTO t3 VALUES(4, 1.1, '1.10');
+    INSERT INTO t3 VALUES(5, 1.2, '1.2');
+    INSERT INTO t3 VALUES(6, 1.3, '1.3');
+    COMMIT;
+  }
+  execsql {
+    SELECT DISTINCT b FROM t3 ORDER BY c;
+  }
+} {1.1 1.2 1.3}
+do_test select4-8.2 {
+  execsql {
+    SELECT DISTINCT c FROM t3 ORDER BY c;
+  }
+} {1.1 1.10 1.2 1.3}
+
+# Make sure the names of columns are taken from the right-most subquery
+# right in a compound query.  Ticket #1721
+#
+ifcapable compound {
+
+do_test select4-9.1 {
+  execsql2 {
+    SELECT x, y FROM t2 UNION SELECT a, b FROM t3 ORDER BY x LIMIT 1
+  }
+} {x 0 y 1}
+do_test select4-9.2 {
+  execsql2 {
+    SELECT x, y FROM t2 UNION ALL SELECT a, b FROM t3 ORDER BY x LIMIT 1
+  }
+} {x 0 y 1}
+do_test select4-9.3 {
+  execsql2 {
+    SELECT x, y FROM t2 EXCEPT SELECT a, b FROM t3 ORDER BY x LIMIT 1
+  }
+} {x 0 y 1}
+do_test select4-9.4 {
+  execsql2 {
+    SELECT x, y FROM t2 INTERSECT SELECT 0 AS a, 1 AS b;
+  }
+} {x 0 y 1}
+do_test select4-9.5 {
+  execsql2 {
+    SELECT 0 AS x, 1 AS y
+    UNION
+    SELECT 2 AS p, 3 AS q
+    UNION
+    SELECT 4 AS a, 5 AS b
+    ORDER BY x LIMIT 1
+  }
+} {x 0 y 1}
+
+ifcapable subquery {
+do_test select4-9.6 {
+  execsql2 {
+    SELECT * FROM (
+      SELECT 0 AS x, 1 AS y
+      UNION
+      SELECT 2 AS p, 3 AS q
+      UNION
+      SELECT 4 AS a, 5 AS b
+    ) ORDER BY 1 LIMIT 1;
+  }
+} {x 0 y 1}
+do_test select4-9.7 {
+  execsql2 {
+    SELECT * FROM (
+      SELECT 0 AS x, 1 AS y
+      UNION
+      SELECT 2 AS p, 3 AS q
+      UNION
+      SELECT 4 AS a, 5 AS b
+    ) ORDER BY x LIMIT 1;
+  }
+} {x 0 y 1}
+} ;# ifcapable subquery
+
+do_test select4-9.8 {
+  execsql {
+    SELECT 0 AS x, 1 AS y
+    UNION
+    SELECT 2 AS y, -3 AS x
+    ORDER BY x LIMIT 1;
+  }
+} {0 1}
+
+do_test select4-9.9.1 {
+  execsql2 {
+    SELECT 1 AS a, 2 AS b UNION ALL SELECT 3 AS b, 4 AS a
+  }
+} {a 1 b 2 a 3 b 4}
+
+ifcapable subquery {
+do_test select4-9.9.2 {
+  execsql2 {
+    SELECT * FROM (SELECT 1 AS a, 2 AS b UNION ALL SELECT 3 AS b, 4 AS a)
+     WHERE b=3
+  }
+} {}
+do_test select4-9.10 {
+  execsql2 {
+    SELECT * FROM (SELECT 1 AS a, 2 AS b UNION ALL SELECT 3 AS b, 4 AS a)
+     WHERE b=2
+  }
+} {a 1 b 2}
+do_test select4-9.11 {
+  execsql2 {
+    SELECT * FROM (SELECT 1 AS a, 2 AS b UNION ALL SELECT 3 AS e, 4 AS b)
+     WHERE b=2
+  }
+} {a 1 b 2}
+do_test select4-9.12 {
+  execsql2 {
+    SELECT * FROM (SELECT 1 AS a, 2 AS b UNION ALL SELECT 3 AS e, 4 AS b)
+     WHERE b>0
+  }
+} {a 1 b 2 a 3 b 4}
+} ;# ifcapable subquery
+
+# Try combining DISTINCT, LIMIT, and OFFSET.  Make sure they all work
+# together.
+#
+do_test select4-10.1 {
+  execsql {
+    SELECT DISTINCT log FROM t1 ORDER BY log
+  }
+} {0 1 2 3 4 5}
+do_test select4-10.2 {
+  execsql {
+    SELECT DISTINCT log FROM t1 ORDER BY log LIMIT 4
+  }
+} {0 1 2 3}
+do_test select4-10.3 {
+  execsql {
+    SELECT DISTINCT log FROM t1 ORDER BY log LIMIT 0
+  }
+} {}
+do_test select4-10.4 {
+  execsql {
+    SELECT DISTINCT log FROM t1 ORDER BY log LIMIT -1
+  }
+} {0 1 2 3 4 5}
+do_test select4-10.5 {
+  execsql {
+    SELECT DISTINCT log FROM t1 ORDER BY log LIMIT -1 OFFSET 2
+  }
+} {2 3 4 5}
+do_test select4-10.6 {
+  execsql {
+    SELECT DISTINCT log FROM t1 ORDER BY log LIMIT 3 OFFSET 2
+  }
+} {2 3 4}
+do_test select4-10.7 {
+  execsql {
+    SELECT DISTINCT log FROM t1 ORDER BY +log LIMIT 3 OFFSET 20
+  }
+} {}
+do_test select4-10.8 {
+  execsql {
+    SELECT DISTINCT log FROM t1 ORDER BY log LIMIT 0 OFFSET 3
+  }
+} {}
+do_test select4-10.9 {
+  execsql {
+    SELECT DISTINCT max(n), log FROM t1 ORDER BY +log; -- LIMIT 2 OFFSET 1
+  }
+} {31 5}
+
+# Make sure compound SELECTs with wildly different numbers of columns
+# do not cause assertion faults due to register allocation issues.
+#
+do_test select4-11.1 {
+  catchsql {
+    SELECT x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x FROM t2
+    UNION
+    SELECT x FROM t2
+  }
+} {1 {SELECTs to the left and right of UNION do not have the same number of result columns}}
+do_test select4-11.2 {
+  catchsql {
+    SELECT x FROM t2
+    UNION
+    SELECT x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x FROM t2
+  }
+} {1 {SELECTs to the left and right of UNION do not have the same number of result columns}}
+do_test select4-11.3 {
+  catchsql {
+    SELECT x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x FROM t2
+    UNION ALL
+    SELECT x FROM t2
+  }
+} {1 {SELECTs to the left and right of UNION ALL do not have the same number of result columns}}
+do_test select4-11.4 {
+  catchsql {
+    SELECT x FROM t2
+    UNION ALL
+    SELECT x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x FROM t2
+  }
+} {1 {SELECTs to the left and right of UNION ALL do not have the same number of result columns}}
+do_test select4-11.5 {
+  catchsql {
+    SELECT x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x FROM t2
+    EXCEPT
+    SELECT x FROM t2
+  }
+} {1 {SELECTs to the left and right of EXCEPT do not have the same number of result columns}}
+do_test select4-11.6 {
+  catchsql {
+    SELECT x FROM t2
+    EXCEPT
+    SELECT x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x FROM t2
+  }
+} {1 {SELECTs to the left and right of EXCEPT do not have the same number of result columns}}
+do_test select4-11.7 {
+  catchsql {
+    SELECT x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x FROM t2
+    INTERSECT
+    SELECT x FROM t2
+  }
+} {1 {SELECTs to the left and right of INTERSECT do not have the same number of result columns}}
+do_test select4-11.8 {
+  catchsql {
+    SELECT x FROM t2
+    INTERSECT
+    SELECT x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x FROM t2
+  }
+} {1 {SELECTs to the left and right of INTERSECT do not have the same number of result columns}}
+
+do_test select4-11.11 {
+  catchsql {
+    SELECT x FROM t2
+    UNION
+    SELECT x FROM t2
+    UNION ALL
+    SELECT x FROM t2
+    EXCEPT
+    SELECT x FROM t2
+    INTERSECT
+    SELECT x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x FROM t2
+  }
+} {1 {SELECTs to the left and right of INTERSECT do not have the same number of result columns}}
+do_test select4-11.12 {
+  catchsql {
+    SELECT x FROM t2
+    UNION
+    SELECT x FROM t2
+    UNION ALL
+    SELECT x FROM t2
+    EXCEPT
+    SELECT x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x FROM t2
+    EXCEPT
+    SELECT x FROM t2
+  }
+} {1 {SELECTs to the left and right of EXCEPT do not have the same number of result columns}}
+do_test select4-11.13 {
+  catchsql {
+    SELECT x FROM t2
+    UNION
+    SELECT x FROM t2
+    UNION ALL
+    SELECT x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x FROM t2
+    UNION ALL
+    SELECT x FROM t2
+    EXCEPT
+    SELECT x FROM t2
+  }
+} {1 {SELECTs to the left and right of UNION ALL do not have the same number of result columns}}
+do_test select4-11.14 {
+  catchsql {
+    SELECT x FROM t2
+    UNION
+    SELECT x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x FROM t2
+    UNION
+    SELECT x FROM t2
+    UNION ALL
+    SELECT x FROM t2
+    EXCEPT
+    SELECT x FROM t2
+  }
+} {1 {SELECTs to the left and right of UNION do not have the same number of result columns}}
+do_test select4-11.15 {
+  catchsql {
+    SELECT x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x FROM t2
+    UNION
+    SELECT x FROM t2
+    INTERSECT
+    SELECT x FROM t2
+    UNION ALL
+    SELECT x FROM t2
+    EXCEPT
+    SELECT x FROM t2
+  }
+} {1 {SELECTs to the left and right of UNION do not have the same number of result columns}}
+do_test select4-11.16 {
+  catchsql {
+    INSERT INTO t2(rowid) VALUES(2) UNION SELECT 3,4 UNION SELECT 5,6 ORDER BY 1;
+  }
+} {1 {SELECTs to the left and right of UNION do not have the same number of result columns}}
+
+do_test select4-12.1 {
+  sqlite3 db2 :memory:
+  catchsql {
+    SELECT 1 UNION SELECT 2,3 UNION SELECT 4,5 ORDER BY 1;
+  } db2
+} {1 {SELECTs to the left and right of UNION do not have the same number of result columns}}
+
+} ;# ifcapable compound
+
+
+# Ticket [3557ad65a076c] - Incorrect DISTINCT processing with an
+# indexed query using IN.
+#
+do_test select4-13.1 {
+  sqlite3 db test.db
+  db eval {
+    CREATE TABLE t13(a,b);
+    INSERT INTO t13 VALUES(1,1);
+    INSERT INTO t13 VALUES(2,1);
+    INSERT INTO t13 VALUES(3,1);
+    INSERT INTO t13 VALUES(2,2);
+    INSERT INTO t13 VALUES(3,2);
+    INSERT INTO t13 VALUES(4,2);
+    CREATE INDEX t13ab ON t13(a,b);
+    SELECT DISTINCT b from t13 WHERE a IN (1,2,3);
+  }
+} {1 2}
+
+# 2014-02-18: Make sure compound SELECTs work with VALUES clauses
+#
+do_execsql_test select4-14.1 {
+  CREATE TABLE t14(a,b,c);
+  INSERT INTO t14 VALUES(1,2,3),(4,5,6);
+  SELECT * FROM t14 INTERSECT VALUES(3,2,1),(2,3,1),(1,2,3),(2,1,3);
+} {1 2 3}
+do_execsql_test select4-14.2 {
+  SELECT * FROM t14 INTERSECT VALUES(1,2,3);
+} {1 2 3}
+do_execsql_test select4-14.3 {
+  SELECT * FROM t14
+   UNION VALUES(3,2,1),(2,3,1),(1,2,3),(7,8,9),(4,5,6)
+   UNION SELECT * FROM t14 ORDER BY 1, 2, 3
+} {1 2 3 2 3 1 3 2 1 4 5 6 7 8 9}
+do_execsql_test select4-14.4 {
+  SELECT * FROM t14
+   UNION VALUES(3,2,1)
+   UNION SELECT * FROM t14 ORDER BY 1, 2, 3
+} {1 2 3 3 2 1 4 5 6}
+do_execsql_test select4-14.5 {
+  SELECT * FROM t14 EXCEPT VALUES(3,2,1),(2,3,1),(1,2,3),(2,1,3);
+} {4 5 6}
+do_execsql_test select4-14.6 {
+  SELECT * FROM t14 EXCEPT VALUES(1,2,3)
+} {4 5 6}
+do_execsql_test select4-14.7 {
+  SELECT * FROM t14 EXCEPT VALUES(1,2,3) EXCEPT VALUES(4,5,6)
+} {}
+do_execsql_test select4-14.8 {
+  SELECT * FROM t14 EXCEPT VALUES('a','b','c') EXCEPT VALUES(4,5,6)
+} {1 2 3}
+do_execsql_test select4-14.9 {
+  SELECT * FROM t14 UNION ALL VALUES(3,2,1),(2,3,1),(1,2,3),(2,1,3);
+} {1 2 3 4 5 6 3 2 1 2 3 1 1 2 3 2 1 3}
+do_execsql_test select4-14.10 {
+  SELECT (VALUES(1),(2),(3),(4))
+} {1}
+do_execsql_test select4-14.11 {
+  SELECT (SELECT 1 UNION ALL SELECT 2 UNION ALL SELECT 3 UNION ALL SELECT 4)
+} {1}
+do_execsql_test select4-14.12 {
+  VALUES(1) UNION VALUES(2);
+} {1 2}
+do_execsql_test select4-14.13 {
+  VALUES(1),(2),(3) EXCEPT VALUES(2);
+} {1 3}
+do_execsql_test select4-14.14 {
+  VALUES(1),(2),(3) EXCEPT VALUES(1),(3);
+} {2}
+do_execsql_test select4-14.15 {
+  SELECT * FROM (SELECT 123), (SELECT 456) ON likely(0 OR 1) OR 0;
+} {123 456}
+do_execsql_test select4-14.16 {
+  VALUES(1),(2),(3),(4) UNION ALL SELECT 5 LIMIT 99;
+} {1 2 3 4 5}
+do_execsql_test select4-14.17 {
+  VALUES(1),(2),(3),(4) UNION ALL SELECT 5 LIMIT 3;
+} {1 2 3}
+
+# Ticket https://www.sqlite.org/src/info/d06a25c84454a372
+# Incorrect answer due to two co-routines using the same registers and expecting
+# those register values to be preserved across a Yield.
+#
+do_execsql_test select4-15.1 {
+  DROP TABLE IF EXISTS tx;
+  CREATE TABLE tx(id INTEGER PRIMARY KEY, a, b);
+  INSERT INTO tx(a,b) VALUES(33,456);
+  INSERT INTO tx(a,b) VALUES(33,789);
+
+  SELECT DISTINCT t0.id, t0.a, t0.b
+    FROM tx AS t0, tx AS t1
+   WHERE t0.a=t1.a AND t1.a=33 AND t0.b=456
+  UNION
+  SELECT DISTINCT t0.id, t0.a, t0.b
+    FROM tx AS t0, tx AS t1
+   WHERE t0.a=t1.a AND t1.a=33 AND t0.b=789
+   ORDER BY 1;
+} {1 33 456 2 33 789}
+
+# Enhancement (2016-03-15):  Use a co-routine for subqueries if the
+# subquery is guaranteed to be the outer-most query
+#
+do_execsql_test select4-16.1 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,
+  PRIMARY KEY(a,b DESC)) WITHOUT ROWID;
+
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<100)
+  INSERT INTO t1(a,b,c,d)
+    SELECT x%10, x/10, x, printf('xyz%dabc',x) FROM c;
+
+  SELECT t3.c FROM 
+    (SELECT a,max(b) AS m FROM t1 WHERE a>=5 GROUP BY a) AS t2
+    JOIN t1 AS t3
+  WHERE t2.a=t3.a AND t2.m=t3.b
+  ORDER BY t3.a;
+} {95 96 97 98 99}
+do_execsql_test select4-16.2 {
+  SELECT t3.c FROM 
+    (SELECT a,max(b) AS m FROM t1 WHERE a>=5 GROUP BY a) AS t2
+    CROSS JOIN t1 AS t3
+  WHERE t2.a=t3.a AND t2.m=t3.b
+  ORDER BY t3.a;
+} {95 96 97 98 99}
+do_execsql_test select4-16.3 {
+  SELECT t3.c FROM 
+    (SELECT a,max(b) AS m FROM t1 WHERE a>=5 GROUP BY a) AS t2
+    LEFT JOIN t1 AS t3
+  WHERE t2.a=t3.a AND t2.m=t3.b
+  ORDER BY t3.a;
+} {95 96 97 98 99}
+
+# Ticket https://www.sqlite.org/src/tktview/f7f8c97e975978d45  on 2016-04-25
+#
+# The where push-down optimization from 2015-06-02 is suppose to disable
+# on aggregate subqueries.  But if the subquery is a compound where the
+# last SELECT is non-aggregate but some other SELECT is an aggregate, the
+# test is incomplete and the optimization is not properly disabled.
+# 
+# The following test cases verify that the fix works.
+#
+do_execsql_test select4-17.1 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a int, b int);
+  INSERT INTO t1 VALUES(1,2),(1,18),(2,19);
+  SELECT x, y FROM (
+    SELECT 98 AS x, 99 AS y
+    UNION
+    SELECT a AS x, sum(b) AS y FROM t1 GROUP BY a
+  ) AS w WHERE y>=20
+  ORDER BY +x;
+} {1 20 98 99}
+do_execsql_test select4-17.2 {
+  SELECT x, y FROM (
+    SELECT a AS x, sum(b) AS y FROM t1 GROUP BY a
+    UNION
+    SELECT 98 AS x, 99 AS y
+  ) AS w WHERE y>=20
+  ORDER BY +x;
+} {1 20 98 99}
+do_catchsql_test select4-17.3 {
+  SELECT x, y FROM (
+    SELECT a AS x, sum(b) AS y FROM t1 GROUP BY a LIMIT 3
+    UNION
+    SELECT 98 AS x, 99 AS y
+  ) AS w WHERE y>=20
+  ORDER BY +x;
+} {1 {LIMIT clause should come after UNION not before}}
+
+# 2020-04-03 ticket 51166be0159fd2ce from Yong Heng.
+# Adverse interaction between the constant propagation and push-down
+# optimizations.
+#
+reset_db
+do_execsql_test select4-18.1 {
+  CREATE VIEW v0(v0) AS WITH v0 AS(SELECT 0 v0) SELECT(SELECT min(v0) OVER()) FROM v0 GROUP BY v0;
+  SELECT *FROM v0 v1 JOIN v0 USING(v0) WHERE datetime(v0) = (v0.v0)AND v0 = 10;
+} {}
+do_execsql_test select4-18.2 {
+  CREATE VIEW t1(aa) AS
+     WITH t2(bb) AS (SELECT 123)
+     SELECT (SELECT min(bb) OVER()) FROM t2 GROUP BY bb;
+  SELECT * FROM t1;
+} {123}
+do_execsql_test select4-18.3 {
+  SELECT * FROM t1 AS z1 JOIN t1 AS z2 USING(aa)
+   WHERE abs(z1.aa)=z2.aa AND z1.aa=123;
+} {123}
+
+# 2021-03-31 Fix an assert() problem in the logic at the end of sqlite3Select()
+# that validates AggInfo.  The checks to ensure that AggInfo.aCol[].pCExpr
+# references a valid expression was looking at an expression that had been
+# deleted by the truth optimization in sqlite3ExprAnd() which was invoked by
+# the push-down optimization.  This is harmless in delivery builds, as that code
+# only runs with SQLITE_DEBUG.  But it should still be fixed.  The problem
+# was discovered by dbsqlfuzz (crash-dece7b67a3552ed7e571a7bda903afd1f7bd9b21)
+#
+reset_db
+do_execsql_test select4-19.1 {
+  CREATE TABLE t1(x);
+  INSERT INTO t1 VALUES(99);
+  SELECT sum((SELECT 1 FROM (SELECT 2 WHERE x IS NULL) WHERE 0)) FROM t1;
+} {{}}
+
+finish_test
diff --git a/test/select5.test b/test/select5.test
new file mode 100644
index 0000000000000000000000000000000000000000..8de306cf40708148443488f79db4113b9480f1a8
--- /dev/null
+++ b/test/select5.test
@@ -0,0 +1,262 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing aggregate functions and the
+# GROUP BY and HAVING clauses of SELECT statements.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Build some test data
+#
+execsql {
+  CREATE TABLE t1(x int, y int);
+  BEGIN;
+}
+for {set i 1} {$i<32} {incr i} {
+  for {set j 0} {(1<<$j)<$i} {incr j} {}
+  execsql "INSERT INTO t1 VALUES([expr {32-$i}],[expr {10-$j}])"
+}
+execsql {
+  COMMIT
+}
+
+do_test select5-1.0 {
+  execsql {SELECT DISTINCT y FROM t1 ORDER BY y}
+} {5 6 7 8 9 10}
+
+# Sort by an aggregate function.
+#
+do_test select5-1.1 {
+  execsql {SELECT y, count(*) FROM t1 GROUP BY y ORDER BY y}
+} {5 15 6 8 7 4 8 2 9 1 10 1}
+do_test select5-1.2 {
+  execsql {SELECT y, count(*) FROM t1 GROUP BY y ORDER BY count(*), y}
+} {9 1 10 1 8 2 7 4 6 8 5 15}
+do_test select5-1.3 {
+  execsql {SELECT count(*), y FROM t1 GROUP BY y ORDER BY count(*), y}
+} {1 9 1 10 2 8 4 7 8 6 15 5}
+
+# Some error messages associated with aggregates and GROUP BY
+#
+do_test select5-2.1.1 {
+  catchsql {
+    SELECT y, count(*) FROM t1 GROUP BY z ORDER BY y
+  }
+} {1 {no such column: z}}
+do_test select5-2.1.2 {
+  catchsql {
+    SELECT y, count(*) FROM t1 GROUP BY temp.t1.y ORDER BY y
+  }
+} {1 {no such column: temp.t1.y}}
+do_test select5-2.2 {
+  set v [catch {execsql {
+    SELECT y, count(*) FROM t1 GROUP BY z(y) ORDER BY y
+  }} msg]
+  lappend v $msg
+} {1 {no such function: z}}
+do_test select5-2.3 {
+  set v [catch {execsql {
+    SELECT y, count(*) FROM t1 GROUP BY y HAVING count(*)<3 ORDER BY y
+  }} msg]
+  lappend v $msg
+} {0 {8 2 9 1 10 1}}
+do_test select5-2.4 {
+  set v [catch {execsql {
+    SELECT y, count(*) FROM t1 GROUP BY y HAVING z(y)<3 ORDER BY y
+  }} msg]
+  lappend v $msg
+} {1 {no such function: z}}
+do_test select5-2.5 {
+  set v [catch {execsql {
+    SELECT y, count(*) FROM t1 GROUP BY y HAVING count(*)<z ORDER BY y
+  }} msg]
+  lappend v $msg
+} {1 {no such column: z}}
+
+# Get the Agg function to rehash in vdbe.c
+#
+do_test select5-3.1 {
+  execsql {
+    SELECT x, count(*), avg(y) FROM t1 GROUP BY x HAVING x<4 ORDER BY x
+  }
+} {1 1 5.0 2 1 5.0 3 1 5.0}
+
+# Run various aggregate functions when the count is zero.
+#
+do_test select5-4.1 {
+  execsql {
+    SELECT avg(x) FROM t1 WHERE x>100
+  }
+} {{}}
+do_test select5-4.2 {
+  execsql {
+    SELECT count(x) FROM t1 WHERE x>100
+  }
+} {0}
+do_test select5-4.3 {
+  execsql {
+    SELECT min(x) FROM t1 WHERE x>100
+  }
+} {{}}
+do_test select5-4.4 {
+  execsql {
+    SELECT max(x) FROM t1 WHERE x>100
+  }
+} {{}}
+do_test select5-4.5 {
+  execsql {
+    SELECT sum(x) FROM t1 WHERE x>100
+  }
+} {{}}
+
+# Some tests for queries with a GROUP BY clause but no aggregate functions.
+#
+# Note: The query in test cases 5.1 through 5.5 are not legal SQL. So if the 
+# implementation changes in the future and it returns different results,
+# this is not such a big deal.
+#
+do_test select5-5.1 {
+  execsql {
+    CREATE TABLE t2(a, b, c);
+    INSERT INTO t2 VALUES(1, 2, 3);
+    INSERT INTO t2 VALUES(1, 4, 5);
+    INSERT INTO t2 VALUES(6, 4, 7);
+    CREATE INDEX t2_idx ON t2(a);
+  } 
+} {}
+do_test select5-5.2 {
+  execsql {
+    SELECT a FROM t2 GROUP BY a;
+  } 
+} {1 6}
+do_test select5-5.3 {
+  execsql {
+    SELECT a FROM t2 WHERE a>2 GROUP BY a;
+  } 
+} {6}
+do_test select5-5.4 {
+  execsql {
+    SELECT a, b FROM t2 GROUP BY a, b;
+  } 
+} {1 2 1 4 6 4}
+do_test select5-5.5 {
+  execsql {
+    SELECT a, b FROM t2 GROUP BY a;
+  } 
+} {1 2 6 4}
+
+# Test rendering of columns for the GROUP BY clause.
+#
+do_test select5-5.11 {
+  execsql {
+    SELECT max(c), b*a, b, a FROM t2 GROUP BY b*a, b, a
+  }
+} {3 2 2 1 5 4 4 1 7 24 4 6}
+
+# NULL compare equal to each other for the purposes of processing
+# the GROUP BY clause.
+#
+do_test select5-6.1 {
+  execsql {
+    CREATE TABLE t3(x,y);
+    INSERT INTO t3 VALUES(1,NULL);
+    INSERT INTO t3 VALUES(2,NULL);
+    INSERT INTO t3 VALUES(3,4);
+    SELECT count(x), y FROM t3 GROUP BY y ORDER BY 1
+  }
+} {1 4 2 {}}
+do_test select5-6.2 {
+  execsql {
+    CREATE TABLE t4(x,y,z);
+    INSERT INTO t4 VALUES(1,2,NULL);
+    INSERT INTO t4 VALUES(2,3,NULL);
+    INSERT INTO t4 VALUES(3,NULL,5);
+    INSERT INTO t4 VALUES(4,NULL,6);
+    INSERT INTO t4 VALUES(4,NULL,6);
+    INSERT INTO t4 VALUES(5,NULL,NULL);
+    INSERT INTO t4 VALUES(5,NULL,NULL);
+    INSERT INTO t4 VALUES(6,7,8);
+    SELECT max(x), count(x), y, z FROM t4 GROUP BY y, z ORDER BY 1
+  }
+} {1 1 2 {} 2 1 3 {} 3 1 {} 5 4 2 {} 6 5 2 {} {} 6 1 7 8}
+
+do_test select5-7.2 {
+  execsql {
+    SELECT count(*), count(x) as cnt FROM t4 GROUP BY y ORDER BY cnt;
+  }
+} {1 1 1 1 1 1 5 5}
+
+# See ticket #3324.
+#
+do_test select5-8.1 {
+  execsql {
+    CREATE TABLE t8a(a,b);
+    CREATE TABLE t8b(x);
+    INSERT INTO t8a VALUES('one', 1);
+    INSERT INTO t8a VALUES('one', 2);
+    INSERT INTO t8a VALUES('two', 3);
+    INSERT INTO t8a VALUES('one', NULL);
+    INSERT INTO t8b(rowid,x) VALUES(1,111);
+    INSERT INTO t8b(rowid,x) VALUES(2,222);
+    INSERT INTO t8b(rowid,x) VALUES(3,333);
+    SELECT a, count(b) FROM t8a, t8b WHERE b=t8b.rowid GROUP BY a ORDER BY a;
+  }
+} {one 2 two 1}
+do_test select5-8.2 {
+  execsql {
+    SELECT a, count(b) FROM t8a, t8b WHERE b=+t8b.rowid GROUP BY a ORDER BY a;
+  }
+} {one 2 two 1}
+do_test select5-8.3 {
+  execsql {
+    SELECT t8a.a, count(t8a.b) FROM t8a, t8b WHERE t8a.b=t8b.rowid
+     GROUP BY 1 ORDER BY 1;
+  }
+} {one 2 two 1}
+do_test select5-8.4 {
+  execsql {
+    SELECT a, count(*) FROM t8a, t8b WHERE b=+t8b.rowid GROUP BY a ORDER BY a;
+  }
+} {one 2 two 1}
+do_test select5-8.5 {
+  execsql {
+    SELECT a, count(b) FROM t8a, t8b WHERE b<x GROUP BY a ORDER BY a;
+  }
+} {one 6 two 3}
+do_test select5-8.6 {
+  execsql {
+    SELECT a, count(t8a.b) FROM t8a, t8b WHERE b=t8b.rowid 
+     GROUP BY a ORDER BY 2;
+  }
+} {two 1 one 2}
+do_test select5-8.7 {
+  execsql {
+    SELECT a, count(b) FROM t8a, t8b GROUP BY a ORDER BY 2;
+  }
+} {two 3 one 6}
+do_test select5-8.8 {
+  execsql {
+    SELECT a, count(*) FROM t8a, t8b GROUP BY a ORDER BY 2;
+  }
+} {two 3 one 9}
+
+# 2021-04-26 forum https://sqlite.org/forum/forumpost/74330094d8
+reset_db
+do_execsql_test select5-9.1 {
+  CREATE TABLE t1(a INT, b INT);
+  INSERT INTO t1(a,b) VALUES(1,null),(null,null),(1,null);
+  CREATE UNIQUE INDEX t1b ON t1(abs(b));
+  SELECT quote(a), quote(b), '|' FROM t1 GROUP BY a, abs(b);
+} {NULL NULL | 1 NULL |}
+
+finish_test
diff --git a/test/select6.test b/test/select6.test
new file mode 100644
index 0000000000000000000000000000000000000000..f748ab47a43a550f62cc6299274c7319ed0f171d
--- /dev/null
+++ b/test/select6.test
@@ -0,0 +1,670 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing SELECT statements that contain
+# subqueries in their FROM clause.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Omit this whole file if the library is build without subquery support.
+ifcapable !subquery {
+  finish_test
+  return
+}
+set ::testprefix select6
+
+do_test select6-1.0 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t1(x, y);
+    INSERT INTO t1 VALUES(1,1);
+    INSERT INTO t1 VALUES(2,2);
+    INSERT INTO t1 VALUES(3,2);
+    INSERT INTO t1 VALUES(4,3);
+    INSERT INTO t1 VALUES(5,3);
+    INSERT INTO t1 VALUES(6,3);
+    INSERT INTO t1 VALUES(7,3);
+    INSERT INTO t1 VALUES(8,4);
+    INSERT INTO t1 VALUES(9,4);
+    INSERT INTO t1 VALUES(10,4);
+    INSERT INTO t1 VALUES(11,4);
+    INSERT INTO t1 VALUES(12,4);
+    INSERT INTO t1 VALUES(13,4);
+    INSERT INTO t1 VALUES(14,4);
+    INSERT INTO t1 VALUES(15,4);
+    INSERT INTO t1 VALUES(16,5);
+    INSERT INTO t1 VALUES(17,5);
+    INSERT INTO t1 VALUES(18,5);
+    INSERT INTO t1 VALUES(19,5);
+    INSERT INTO t1 VALUES(20,5);
+    COMMIT;
+    SELECT DISTINCT y FROM t1 ORDER BY y;
+  }
+} {1 2 3 4 5}
+
+do_test select6-1.1 {
+  execsql2 {SELECT * FROM (SELECT x, y FROM t1 WHERE x<2)}
+} {x 1 y 1}
+do_test select6-1.2 {
+  execsql {SELECT count(*) FROM (SELECT y FROM t1)}
+} {20}
+do_test select6-1.3 {
+  execsql {SELECT count(*) FROM (SELECT DISTINCT y FROM t1)}
+} {5}
+do_test select6-1.4 {
+  execsql {SELECT count(*) FROM (SELECT DISTINCT * FROM (SELECT y FROM t1))}
+} {5}
+do_test select6-1.5 {
+  execsql {SELECT count(*) FROM (SELECT * FROM (SELECT DISTINCT y FROM t1))}
+} {5}
+
+do_test select6-1.6 {
+  execsql {
+    SELECT * 
+    FROM (SELECT count(*),y FROM t1 GROUP BY y) AS a,
+         (SELECT max(x),y FROM t1 GROUP BY y) as b
+    WHERE a.y=b.y ORDER BY a.y
+  }
+} {1 1 1 1 2 2 3 2 4 3 7 3 8 4 15 4 5 5 20 5}
+do_test select6-1.7 {
+  execsql {
+    SELECT a.y, a.[count(*)], [max(x)], [count(*)]
+    FROM (SELECT count(*),y FROM t1 GROUP BY y) AS a,
+         (SELECT max(x),y FROM t1 GROUP BY y) as b
+    WHERE a.y=b.y ORDER BY a.y
+  }
+} {1 1 1 1 2 2 3 2 3 4 7 4 4 8 15 8 5 5 20 5}
+do_test select6-1.8 {
+  execsql {
+    SELECT q, p, r
+    FROM (SELECT count(*) as p , y as q FROM t1 GROUP BY y) AS a,
+         (SELECT max(x) as r, y as s FROM t1 GROUP BY y) as b
+    WHERE q=s ORDER BY s
+  }
+} {1 1 1 2 2 3 3 4 7 4 8 15 5 5 20}
+do_test select6-1.9 {
+  execsql {
+    SELECT q, p, r, b.[min(x)+y]
+    FROM (SELECT count(*) as p , y as q FROM t1 GROUP BY y) AS a,
+         (SELECT max(x) as r, y as s, min(x)+y FROM t1 GROUP BY y) as b
+    WHERE q=s ORDER BY s
+  }
+} {1 1 1 2 2 2 3 4 3 4 7 7 4 8 15 12 5 5 20 21}
+
+do_test select6-2.0 {
+  execsql {
+    CREATE TABLE t2(a INTEGER PRIMARY KEY, b);
+    INSERT INTO t2 SELECT * FROM t1;
+    SELECT DISTINCT b FROM t2 ORDER BY b;
+  }
+} {1 2 3 4 5}
+do_test select6-2.1 {
+  execsql2 {SELECT * FROM (SELECT a, b FROM t2 WHERE a<2)}
+} {a 1 b 1}
+do_test select6-2.2 {
+  execsql {SELECT count(*) FROM (SELECT b FROM t2)}
+} {20}
+do_test select6-2.3 {
+  execsql {SELECT count(*) FROM (SELECT DISTINCT b FROM t2)}
+} {5}
+do_test select6-2.4 {
+  execsql {SELECT count(*) FROM (SELECT DISTINCT * FROM (SELECT b FROM t2))}
+} {5}
+do_test select6-2.5 {
+  execsql {SELECT count(*) FROM (SELECT * FROM (SELECT DISTINCT b FROM t2))}
+} {5}
+
+do_test select6-2.6 {
+  execsql {
+    SELECT * 
+    FROM (SELECT count(*),b FROM t2 GROUP BY b) AS a,
+         (SELECT max(a),b FROM t2 GROUP BY b) as b
+    WHERE a.b=b.b ORDER BY a.b
+  }
+} {1 1 1 1 2 2 3 2 4 3 7 3 8 4 15 4 5 5 20 5}
+do_test select6-2.7 {
+  execsql {
+    SELECT a.b, a.[count(*)], [max(a)], [count(*)]
+    FROM (SELECT count(*),b FROM t2 GROUP BY b) AS a,
+         (SELECT max(a),b FROM t2 GROUP BY b) as b
+    WHERE a.b=b.b ORDER BY a.b
+  }
+} {1 1 1 1 2 2 3 2 3 4 7 4 4 8 15 8 5 5 20 5}
+do_test select6-2.8 {
+  execsql {
+    SELECT q, p, r
+    FROM (SELECT count(*) as p , b as q FROM t2 GROUP BY b) AS a,
+         (SELECT max(a) as r, b as s FROM t2 GROUP BY b) as b
+    WHERE q=s ORDER BY s
+  }
+} {1 1 1 2 2 3 3 4 7 4 8 15 5 5 20}
+do_test select6-2.9 {
+  execsql {
+    SELECT a.q, a.p, b.r
+    FROM (SELECT count(*) as p , b as q FROM t2 GROUP BY q) AS a,
+         (SELECT max(a) as r, b as s FROM t2 GROUP BY s) as b
+    WHERE a.q=b.s ORDER BY a.q
+  }
+} {1 1 1 2 2 3 3 4 7 4 8 15 5 5 20}
+
+do_test select6-3.1 {
+  execsql2 {
+    SELECT * FROM (SELECT * FROM (SELECT * FROM t1 WHERE x=3));
+  }
+} {x 3 y 2}
+do_test select6-3.2 {
+  execsql {
+    SELECT * FROM
+      (SELECT a.q, a.p, b.r
+       FROM (SELECT count(*) as p , b as q FROM t2 GROUP BY q) AS a,
+            (SELECT max(a) as r, b as s FROM t2 GROUP BY s) as b
+       WHERE a.q=b.s ORDER BY a.q)
+  }
+} {1 1 1 2 2 3 3 4 7 4 8 15 5 5 20}
+do_test select6-3.3 {
+  execsql {
+    SELECT a,b,a+b FROM (SELECT avg(x) as 'a', avg(y) as 'b' FROM t1)
+  }
+} {10.5 3.7 14.2}
+do_test select6-3.4 {
+  execsql {
+    SELECT a,b,a+b FROM (SELECT avg(x) as 'a', avg(y) as 'b' FROM t1 WHERE y=4)
+  }
+} {11.5 4.0 15.5}
+do_test select6-3.5 {
+  execsql {
+    SELECT x,y,x+y FROM (SELECT avg(a) as 'x', avg(b) as 'y' FROM t2 WHERE a=4)
+  }
+} {4.0 3.0 7.0}
+do_test select6-3.6 {
+  execsql {
+    SELECT a,b,a+b FROM (SELECT avg(x) as 'a', avg(y) as 'b' FROM t1)
+    WHERE a>10
+  }
+} {10.5 3.7 14.2}
+do_test select6-3.7 {
+  execsql {
+    SELECT a,b,a+b FROM (SELECT avg(x) as 'a', avg(y) as 'b' FROM t1)
+    WHERE a<10
+  }
+} {}
+do_test select6-3.8 {
+  execsql {
+    SELECT a,b,a+b FROM (SELECT avg(x) as 'a', avg(y) as 'b' FROM t1 WHERE y=4)
+    WHERE a>10
+  }
+} {11.5 4.0 15.5}
+do_test select6-3.9 {
+  execsql {
+    SELECT a,b,a+b FROM (SELECT avg(x) as 'a', avg(y) as 'b' FROM t1 WHERE y=4)
+    WHERE a<10
+  }
+} {}
+do_test select6-3.10 {
+  execsql {
+    SELECT a,b,a+b FROM (SELECT avg(x) as 'a', y as 'b' FROM t1 GROUP BY b)
+    ORDER BY a
+  }
+} {1.0 1 2.0 2.5 2 4.5 5.5 3 8.5 11.5 4 15.5 18.0 5 23.0}
+do_test select6-3.11 {
+  execsql {
+    SELECT a,b,a+b FROM 
+       (SELECT avg(x) as 'a', y as 'b' FROM t1 GROUP BY b)
+    WHERE b<4 ORDER BY a
+  }
+} {1.0 1 2.0 2.5 2 4.5 5.5 3 8.5}
+do_test select6-3.12 {
+  execsql {
+    SELECT a,b,a+b FROM 
+       (SELECT avg(x) as 'a', y as 'b' FROM t1 GROUP BY b HAVING a>1)
+    WHERE b<4 ORDER BY a
+  }
+} {2.5 2 4.5 5.5 3 8.5}
+do_test select6-3.13 {
+  execsql {
+    SELECT a,b,a+b FROM 
+       (SELECT avg(x) as 'a', y as 'b' FROM t1 GROUP BY b HAVING a>1)
+    ORDER BY a
+  }
+} {2.5 2 4.5 5.5 3 8.5 11.5 4 15.5 18.0 5 23.0}
+do_test select6-3.14 {
+  execsql {
+    SELECT [count(*)],y FROM (SELECT count(*), y FROM t1 GROUP BY y)
+    ORDER BY [count(*)]
+  }
+} {1 1 2 2 4 3 5 5 8 4}
+do_test select6-3.15 {
+  execsql {
+    SELECT [count(*)],y FROM (SELECT count(*), y FROM t1 GROUP BY y)
+    ORDER BY y
+  }
+} {1 1 2 2 4 3 8 4 5 5}
+
+do_test select6-4.1 {
+  execsql {
+    SELECT a,b,c FROM 
+      (SELECT x AS 'a', y AS 'b', x+y AS 'c' FROM t1 WHERE y=4)
+    WHERE a<10 ORDER BY a;
+  }
+} {8 4 12 9 4 13}
+do_test select6-4.2 {
+  execsql {
+    SELECT y FROM (SELECT DISTINCT y FROM t1) WHERE y<5 ORDER BY y
+  }
+} {1 2 3 4}
+do_test select6-4.3 {
+  execsql {
+    SELECT DISTINCT y FROM (SELECT y FROM t1) WHERE y<5 ORDER BY y
+  }
+} {1 2 3 4}
+do_test select6-4.4 {
+  execsql {
+    SELECT avg(y) FROM (SELECT DISTINCT y FROM t1) WHERE y<5 ORDER BY y
+  }
+} {2.5}
+do_test select6-4.5 {
+  execsql {
+    SELECT avg(y) FROM (SELECT DISTINCT y FROM t1 WHERE y<5) ORDER BY y
+  }
+} {2.5}
+
+do_test select6-5.1 {
+  execsql {
+    SELECT a,x,b FROM
+      (SELECT x+3 AS 'a', x FROM t1 WHERE y=3) AS 'p',
+      (SELECT x AS 'b' FROM t1 WHERE y=4) AS 'q'
+    WHERE a=b
+    ORDER BY a
+  }
+} {8 5 8 9 6 9 10 7 10}
+do_test select6-5.2 {
+  execsql {
+    SELECT a,x,b FROM
+      (SELECT x+3 AS 'a', x FROM t1 WHERE y=3),
+      (SELECT x AS 'b' FROM t1 WHERE y=4)
+    WHERE a=b
+    ORDER BY a
+  }
+} {8 5 8 9 6 9 10 7 10}
+
+# Tests of compound sub-selects
+#
+do_test select6-6.1 {
+  execsql {
+    DELETE FROM t1 WHERE x>4;
+    SELECT * FROM t1
+  }
+} {1 1 2 2 3 2 4 3}
+ifcapable compound {
+  do_test select6-6.2 {
+    execsql {
+      SELECT * FROM (
+        SELECT x AS 'a' FROM t1 UNION ALL SELECT x+10 AS 'a' FROM t1
+      ) ORDER BY a;
+    }
+  } {1 2 3 4 11 12 13 14}
+  do_test select6-6.3 {
+    execsql {
+      SELECT * FROM (
+        SELECT x AS 'a' FROM t1 UNION ALL SELECT x+1 AS 'a' FROM t1
+      ) ORDER BY a;
+    }
+  } {1 2 2 3 3 4 4 5}
+  do_test select6-6.4 {
+    execsql {
+      SELECT * FROM (
+        SELECT x AS 'a' FROM t1 UNION SELECT x+1 AS 'a' FROM t1
+      ) ORDER BY a;
+    }
+  } {1 2 3 4 5}
+  do_test select6-6.5 {
+    execsql {
+      SELECT * FROM (
+        SELECT x AS 'a' FROM t1 INTERSECT SELECT x+1 AS 'a' FROM t1
+      ) ORDER BY a;
+    }
+  } {2 3 4}
+  do_test select6-6.6 {
+    execsql {
+      SELECT * FROM (
+        SELECT x AS 'a' FROM t1 EXCEPT SELECT x*2 AS 'a' FROM t1
+      ) ORDER BY a;
+    }
+  } {1 3}
+} ;# ifcapable compound
+
+# Subselects with no FROM clause
+#
+do_test select6-7.1 {
+  execsql {
+    SELECT * FROM (SELECT 1)
+  }
+} {1}
+do_test select6-7.2 {
+  execsql {
+    SELECT c,b,a,* FROM (SELECT 1 AS 'a', 2 AS 'b', 'abc' AS 'c')
+  }
+} {abc 2 1 1 2 abc}
+do_test select6-7.3 {
+  execsql {
+    SELECT c,b,a,* FROM (SELECT 1 AS 'a', 2 AS 'b', 'abc' AS 'c' WHERE 0)
+  }
+} {}
+do_test select6-7.4 {
+  execsql2 {
+    SELECT c,b,a,* FROM (SELECT 1 AS 'a', 2 AS 'b', 'abc' AS 'c' WHERE 1)
+  }
+} {c abc b 2 a 1 a 1 b 2 c abc}
+
+# The remaining tests in this file depend on the EXPLAIN keyword.
+# Skip these tests if EXPLAIN is disabled in the current build.
+#
+ifcapable {!explain} {
+  finish_test
+  return
+}
+
+# The following procedure compiles the SQL given as an argument and returns
+# TRUE if that SQL uses any transient tables and returns FALSE if no
+# transient tables are used.  This is used to make sure that the
+# sqliteFlattenSubquery() routine in select.c is doing its job.
+#
+proc is_flat {sql} {
+  return [expr 0>[lsearch [execsql "EXPLAIN $sql"] OpenEphemeral]]
+}
+
+# Check that the flattener works correctly for deeply nested subqueries
+# involving joins.
+#
+do_test select6-8.1 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t3(p,q);
+    INSERT INTO t3 VALUES(1,11);
+    INSERT INTO t3 VALUES(2,22);
+    CREATE TABLE t4(q,r);
+    INSERT INTO t4 VALUES(11,111);
+    INSERT INTO t4 VALUES(22,222);
+    COMMIT;
+    SELECT * FROM t3 NATURAL JOIN t4;
+  }
+} {1 11 111 2 22 222}
+do_test select6-8.2 {
+  execsql {
+    SELECT y, p, q, r FROM
+       (SELECT t1.y AS y, t2.b AS b FROM t1, t2 WHERE t1.x=t2.a) AS m,
+       (SELECT t3.p AS p, t3.q AS q, t4.r AS r FROM t3 NATURAL JOIN t4) as n
+    WHERE  y=p
+  }
+} {1 1 11 111 2 2 22 222 2 2 22 222}
+# If view support is omitted from the build, then so is the query 
+# "flattener". So omit this test and test select6-8.6 in that case.
+ifcapable view {
+do_test select6-8.3 {
+  is_flat {
+    SELECT y, p, q, r FROM
+       (SELECT t1.y AS y, t2.b AS b FROM t1, t2 WHERE t1.x=t2.a) AS m,
+       (SELECT t3.p AS p, t3.q AS q, t4.r AS r FROM t3 NATURAL JOIN t4) as n
+    WHERE  y=p
+  }
+} {1}
+} ;# ifcapable view
+do_test select6-8.4 {
+  execsql {
+    SELECT DISTINCT y, p, q, r FROM
+       (SELECT t1.y AS y, t2.b AS b FROM t1, t2 WHERE t1.x=t2.a) AS m,
+       (SELECT t3.p AS p, t3.q AS q, t4.r AS r FROM t3 NATURAL JOIN t4) as n
+    WHERE  y=p
+  }
+} {1 1 11 111 2 2 22 222}
+do_test select6-8.5 {
+  execsql {
+    SELECT * FROM 
+      (SELECT y, p, q, r FROM
+         (SELECT t1.y AS y, t2.b AS b FROM t1, t2 WHERE t1.x=t2.a) AS m,
+         (SELECT t3.p AS p, t3.q AS q, t4.r AS r FROM t3 NATURAL JOIN t4) as n
+      WHERE  y=p) AS e,
+      (SELECT r AS z FROM t4 WHERE q=11) AS f
+    WHERE e.r=f.z
+  }
+} {1 1 11 111 111}
+ifcapable view {
+do_test select6-8.6 {
+  is_flat {
+    SELECT * FROM 
+      (SELECT y, p, q, r FROM
+         (SELECT t1.y AS y, t2.b AS b FROM t1, t2 WHERE t1.x=t2.a) AS m,
+         (SELECT t3.p AS p, t3.q AS q, t4.r AS r FROM t3 NATURAL JOIN t4) as n
+      WHERE  y=p) AS e,
+      (SELECT r AS z FROM t4 WHERE q=11) AS f
+    WHERE e.r=f.z
+  }
+} {1}
+} ;# ifcapable view
+
+# Ticket #1634
+#
+do_test select6-9.1 {
+  execsql {
+    SELECT a.x, b.x FROM t1 AS a, (SELECT x FROM t1 LIMIT 2) AS b
+     ORDER BY 1, 2
+  }
+} {1 1 1 2 2 1 2 2 3 1 3 2 4 1 4 2}
+do_test select6-9.2 {
+  execsql {
+    SELECT x FROM (SELECT x FROM t1 LIMIT 2);
+  }
+} {1 2}
+do_test select6-9.3 {
+  execsql {
+    SELECT x FROM (SELECT x FROM t1 LIMIT 2 OFFSET 1);
+  }
+} {2 3}
+do_test select6-9.4 {
+  execsql {
+    SELECT x FROM (SELECT x FROM t1) LIMIT 2;
+  }
+} {1 2}
+do_test select6-9.5 {
+  execsql {
+    SELECT x FROM (SELECT x FROM t1) LIMIT 2 OFFSET 1;
+  }
+} {2 3}
+do_test select6-9.6 {
+  execsql {
+    SELECT x FROM (SELECT x FROM t1 LIMIT 2) LIMIT 3;
+  }
+} {1 2}
+do_test select6-9.7 {
+  execsql {
+    SELECT x FROM (SELECT x FROM t1 LIMIT -1) LIMIT 3;
+  }
+} {1 2 3}
+do_test select6-9.8 {
+  execsql {
+    SELECT x FROM (SELECT x FROM t1 LIMIT -1);
+  }
+} {1 2 3 4}
+do_test select6-9.9 {
+  execsql {
+    SELECT x FROM (SELECT x FROM t1 LIMIT -1 OFFSET 1);
+  }
+} {2 3 4}
+do_test select6-9.10 {
+  execsql {
+    SELECT x, y FROM (SELECT x, (SELECT 10+x) y FROM t1 LIMIT -1 OFFSET 1);
+  }
+} {2 12 3 13 4 14}
+do_test select6-9.11 {
+  execsql {
+    SELECT x, y FROM (SELECT x, (SELECT 10)+x y FROM t1 LIMIT -1 OFFSET 1);
+  }
+} {2 12 3 13 4 14}
+
+
+#-------------------------------------------------------------------------
+# Test that if a UNION ALL sub-query that would otherwise be eligible for
+# flattening consists of two or more SELECT statements that do not all 
+# return the same number of result columns, the error is detected.
+#
+do_execsql_test 10.1 {
+  CREATE TABLE t(i,j,k);
+  CREATE TABLE j(l,m);
+  CREATE TABLE k(o);
+}
+
+set err [list 1 {SELECTs to the left and right of UNION ALL do not have the same number of result columns}]
+
+do_execsql_test 10.2 {
+  SELECT * FROM (SELECT * FROM t), j;
+}
+do_catchsql_test 10.3 {
+  SELECT * FROM t UNION ALL SELECT * FROM j
+} $err
+do_catchsql_test 10.4 {
+  SELECT * FROM (SELECT i FROM t UNION ALL SELECT l, m FROM j)
+} $err
+do_catchsql_test 10.5 {
+  SELECT * FROM (SELECT j FROM t UNION ALL SELECT * FROM j)
+} $err
+do_catchsql_test 10.6 {
+  SELECT * FROM (SELECT * FROM t UNION ALL SELECT * FROM j)
+} $err
+do_catchsql_test 10.7 {
+  SELECT * FROM (
+    SELECT * FROM t UNION ALL 
+    SELECT l,m,l FROM j UNION ALL
+    SELECT * FROM k
+  )
+} $err
+do_catchsql_test 10.8 {
+  SELECT * FROM (
+    SELECT * FROM k UNION ALL
+    SELECT * FROM t UNION ALL 
+    SELECT l,m,l FROM j 
+  )
+} $err
+
+# 2015-02-09 Ticket [2f7170d73bf9abf80339187aa3677dce3dbcd5ca]
+# "misuse of aggregate" error if aggregate column from FROM
+# subquery is used in correlated subquery 
+#
+do_execsql_test 11.1 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(w INT, x INT);
+  INSERT INTO t1(w,x)
+   VALUES(1,10),(2,20),(3,30),
+         (2,21),(3,31),
+         (3,32);
+  CREATE INDEX t1wx ON t1(w,x);
+
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t2(w INT, y VARCHAR(8));
+  INSERT INTO t2(w,y) VALUES(1,'one'),(2,'two'),(3,'three'),(4,'four');
+  CREATE INDEX t2wy ON t2(w,y);
+
+  SELECT cnt, xyz, (SELECT y FROM t2 WHERE w=cnt), '|'
+    FROM (SELECT count(*) AS cnt, w AS xyz FROM t1 GROUP BY 2)
+   ORDER BY cnt, xyz;
+} {1 1 one | 2 2 two | 3 3 three |}
+do_execsql_test 11.2 {
+  SELECT cnt, xyz, lower((SELECT y FROM t2 WHERE w=cnt)), '|'
+    FROM (SELECT count(*) AS cnt, w AS xyz FROM t1 GROUP BY 2)
+   ORDER BY cnt, xyz;
+} {1 1 one | 2 2 two | 3 3 three |}
+do_execsql_test 11.3 {
+  SELECT cnt, xyz, '|'
+    FROM (SELECT count(*) AS cnt, w AS xyz FROM t1 GROUP BY 2)
+   WHERE (SELECT y FROM t2 WHERE w=cnt)!='two'
+   ORDER BY cnt, xyz;
+} {1 1 | 3 3 |}
+do_execsql_test 11.4 {
+  SELECT cnt, xyz, '|'
+    FROM (SELECT count(*) AS cnt, w AS xyz FROM t1 GROUP BY 2)
+   ORDER BY lower((SELECT y FROM t2 WHERE w=cnt));
+} {1 1 | 3 3 | 2 2 |}
+do_execsql_test 11.5 {
+  SELECT cnt, xyz, 
+         CASE WHEN (SELECT y FROM t2 WHERE w=cnt)=='two'
+              THEN 'aaa' ELSE 'bbb'
+          END, '|'
+    FROM (SELECT count(*) AS cnt, w AS xyz FROM t1 GROUP BY 2)
+   ORDER BY +cnt;
+} {1 1 bbb | 2 2 aaa | 3 3 bbb |}
+
+do_execsql_test 11.100 {
+  DROP TABLE t1;
+  DROP TABLE t2;
+  CREATE TABLE t1(x);
+  CREATE TABLE t2(y, z);
+  SELECT ( SELECT y FROM t2 WHERE z = cnt )
+    FROM ( SELECT count(*) AS cnt FROM t1 );
+} {{}}
+
+# 2019-05-29 ticket https://www.sqlite.org/src/info/c41afac34f15781f
+# A LIMIT clause in a subquery is incorrectly applied to a subquery.
+#
+do_execsql_test 12.100 {
+  DROP TABLE t1;
+  DROP TABLE t2;
+  CREATE TABLE t1(a);
+  INSERT INTO t1 VALUES(1);
+  INSERT INTO t1 VALUES(2);
+  CREATE TABLE t2(b);
+  INSERT INTO t2 VALUES(3);
+  SELECT * FROM (
+    SELECT * FROM (SELECT * FROM t1 LIMIT 1)
+    UNION ALL
+    SELECT * from t2);
+} {1 3}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 13.100 {
+
+  CREATE  TABLE  t1(y INT);
+  INSERT INTO t1 (y) VALUES (1);
+
+  CREATE  TABLE  t2(x INTEGER);
+  INSERT INTO t2 VALUES(0);
+
+  CREATE  TABLE  empty1(z);
+}
+
+do_execsql_test 13.110 {
+  SELECT t1.y 
+    FROM ( SELECT 'AAA' ) 
+    INNER JOIN (
+      SELECT 1 AS abc FROM (
+        SELECT 1 FROM t2 LEFT JOIN empty1
+      )
+    ) AS sub0 ON sub0.abc
+    , t1
+    RIGHT JOIN (SELECT 'BBB' FROM ( SELECT 'CCC' ))
+} {1}
+
+do_execsql_test 13.120 {
+  SELECT t1.y 
+    FROM ( SELECT 'AAA' ) 
+    INNER JOIN (
+      SELECT 1 AS abc FROM (
+        SELECT 1 FROM t2 LEFT JOIN empty1
+      )
+    ) AS sub0 ON sub0.abc
+    , t1
+    RIGHT JOIN (SELECT 'BBB' FROM ( SELECT 'CCC' ))
+    WHERE t1.y
+} {1}
+
+
+finish_test
diff --git a/test/select7.test b/test/select7.test
new file mode 100644
index 0000000000000000000000000000000000000000..0c4051006a3885098f015b163c9a05f64b7902b6
--- /dev/null
+++ b/test/select7.test
@@ -0,0 +1,250 @@
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing compute SELECT statements and nested
+# views.
+#
+# $Id: select7.test,v 1.11 2007/09/12 17:01:45 danielk1977 Exp $
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix select7
+
+ifcapable compound {
+
+# A 3-way INTERSECT.  Ticket #875
+ifcapable tempdb {
+  do_test select7-1.1 {
+    execsql {
+      create temp table t1(x);
+      insert into t1 values('amx');
+      insert into t1 values('anx');
+      insert into t1 values('amy');
+      insert into t1 values('bmy');
+      select * from t1 where x like 'a__'
+        intersect select * from t1 where x like '_m_'
+        intersect select * from t1 where x like '__x';
+    }
+  } {amx}
+}
+
+
+# Nested views do not handle * properly.  Ticket #826.
+#
+ifcapable view {
+do_test select7-2.1 {
+  execsql {
+    CREATE TABLE x(id integer primary key, a TEXT NULL);
+    INSERT INTO x (a) VALUES ('first');
+    CREATE TABLE tempx(id integer primary key, a TEXT NULL);
+    INSERT INTO tempx (a) VALUES ('t-first');
+    CREATE VIEW tv1 AS SELECT x.id, tx.id FROM x JOIN tempx tx ON tx.id=x.id;
+    CREATE VIEW tv1b AS SELECT x.id, tx.id FROM x JOIN tempx tx on tx.id=x.id;
+    CREATE VIEW tv2 AS SELECT * FROM tv1 UNION SELECT * FROM tv1b;
+    SELECT * FROM tv2;
+  }
+} {1 1}
+} ;# ifcapable view
+
+} ;# ifcapable compound
+
+# Do not allow GROUP BY without an aggregate. Ticket #1039.
+#
+# Change: force any query with a GROUP BY clause to be processed as
+# an aggregate query, whether it contains aggregates or not.
+#
+ifcapable subquery {
+  # do_test select7-3.1 {
+  #   catchsql {
+  #     SELECT * FROM (SELECT * FROM sqlite_master) GROUP BY name
+  #   }
+  # } {1 {GROUP BY may only be used on aggregate queries}}
+  do_test select7-3.1 {
+    catchsql {
+      SELECT * FROM (SELECT * FROM sqlite_master) GROUP BY name
+    }
+  } [list 0 [execsql {SELECT * FROM sqlite_master ORDER BY name}]]
+}
+
+# Ticket #2018 - Make sure names are resolved correctly on all
+# SELECT statements of a compound subquery.
+#
+ifcapable {subquery && compound} {
+  do_test select7-4.1 {
+    execsql {
+      CREATE TABLE IF NOT EXISTS photo(pk integer primary key, x);
+      CREATE TABLE IF NOT EXISTS tag(pk integer primary key, fk int, name);
+    
+      SELECT P.pk from PHOTO P WHERE NOT EXISTS ( 
+           SELECT T2.pk from TAG T2 WHERE T2.fk = P.pk 
+           EXCEPT 
+           SELECT T3.pk from TAG T3 WHERE T3.fk = P.pk AND T3.name LIKE '%foo%'
+      );
+    }
+  } {}
+  do_test select7-4.2 {
+    execsql {
+      INSERT INTO photo VALUES(1,1);
+      INSERT INTO photo VALUES(2,2);
+      INSERT INTO photo VALUES(3,3);
+      INSERT INTO tag VALUES(11,1,'one');
+      INSERT INTO tag VALUES(12,1,'two');
+      INSERT INTO tag VALUES(21,1,'one-b');
+      SELECT P.pk from PHOTO P WHERE NOT EXISTS ( 
+           SELECT T2.pk from TAG T2 WHERE T2.fk = P.pk 
+           EXCEPT 
+           SELECT T3.pk from TAG T3 WHERE T3.fk = P.pk AND T3.name LIKE '%foo%'
+      );
+    }
+  } {2 3}
+}
+
+# ticket #2347
+#
+ifcapable {subquery && compound} {
+  do_test select7-5.1 {
+    catchsql {
+      CREATE TABLE t2(a,b);
+      SELECT 5 IN (SELECT a,b FROM t2);
+    }
+  } {1 {sub-select returns 2 columns - expected 1}}
+  do_test select7-5.2 {
+    catchsql {
+      SELECT 5 IN (SELECT * FROM t2);
+    }
+  } {1 {sub-select returns 2 columns - expected 1}}
+  do_test select7-5.3 {
+    catchsql {
+      SELECT 5 IN (SELECT a,b FROM t2 UNION SELECT b,a FROM t2);
+    }
+  } {1 {sub-select returns 2 columns - expected 1}}
+  do_test select7-5.4 {
+    catchsql {
+      SELECT 5 IN (SELECT * FROM t2 UNION SELECT * FROM t2);
+    }
+  } {1 {sub-select returns 2 columns - expected 1}}
+}
+
+# Verify that an error occurs if you have too many terms on a
+# compound select statement.
+#
+if {[clang_sanitize_address]==0} {
+  ifcapable compound {
+    if {$SQLITE_MAX_COMPOUND_SELECT>0} {
+      set sql {SELECT 0}
+      set result 0
+        for {set i 1} {$i<$SQLITE_MAX_COMPOUND_SELECT} {incr i} {
+          append sql " UNION ALL SELECT $i"
+            lappend result $i
+        }
+      do_test select7-6.1 {
+        catchsql $sql
+      } [list 0 $result]
+      append sql { UNION ALL SELECT 99999999}
+      do_test select7-6.2 {
+        catchsql $sql
+      } {1 {too many terms in compound SELECT}}
+    }
+  }
+}
+
+# https://issues.chromium.org/issues/358174302
+# Need to support an unlimited number of terms in a VALUES clause, even
+# if some of those terms contain double-quoted string literals.
+#
+do_execsql_test select7-6.5 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a,b,c);
+}
+sqlite3_limit db SQLITE_LIMIT_COMPOUND_SELECT 10
+sqlite3_db_config db SQLITE_DBCONFIG_DQS_DML 0
+do_catchsql_test select7-6.6 {
+  INSERT INTO t1 VALUES
+    (NULL,0,""),  (X'',0.0,0.0),  (X'',X'',""),  (0.0,0.0,""),  (NULL,NULL,0.0),
+    (0,"",0),  (0.0,X'',0),  ("",X'',0.0),  (0.0,X'',NULL),  (0,NULL,""),
+    (0,"",NULL),  (0.0,NULL,X''),  ("",X'',NULL),  (NULL,0,""),
+    (0,NULL,0),  (X'',X'',0.0);
+} {1 {no such column: "" - should this be a string literal in single-quotes?}}
+do_execsql_test select7-6.7 {
+  SELECT count(*) FROM t1;
+} {0}
+sqlite3_db_config db SQLITE_DBCONFIG_DQS_DML 1
+do_catchsql_test select7-6.8 {
+  INSERT INTO t1 VALUES
+    (NULL,0,""),  (X'',0.0,0.0),  (X'',X'',""),  (0.0,0.0,""),  (NULL,NULL,0.0),
+    (0,"",0),  (0.0,X'',0),  ("",X'',0.0),  (0.0,X'',NULL),  (0,NULL,""),
+    (0,"",NULL),  (0.0,NULL,X''),  ("",X'',NULL),  (NULL,0,""),
+    (0,NULL,0),  (X'',X'',0.0);
+} {0 {}}
+do_execsql_test select7-6.9 {
+  SELECT count(*) FROM t1;
+} {16}
+
+# This block of tests verifies that bug aa92c76cd4 is fixed.
+#
+do_test select7-7.1 {
+  execsql {
+    CREATE TABLE t3(a REAL);
+    INSERT INTO t3 VALUES(44.0);
+    INSERT INTO t3 VALUES(56.0);
+  }
+} {}
+do_test select7-7.2 {
+  execsql {
+    pragma vdbe_trace = 0;
+    SELECT (CASE WHEN a=0 THEN 0 ELSE (a + 25) / 50 END) AS categ, count(*)
+    FROM t3 GROUP BY categ
+  }
+} {1.38 1 1.62 1}
+do_test select7-7.3 {
+  execsql {
+    CREATE TABLE t4(a REAL);
+    INSERT INTO t4 VALUES( 2.0 );
+    INSERT INTO t4 VALUES( 3.0 );
+  }
+} {}
+do_test select7-7.4 {
+  execsql {
+    SELECT (CASE WHEN a=0 THEN 'zero' ELSE a/2 END) AS t FROM t4 GROUP BY t;
+  }
+} {1.0 1.5}
+do_test select7-7.5 {
+  execsql { SELECT a=0, typeof(a) FROM t4 }
+} {0 real 0 real}
+do_test select7-7.6 {
+  execsql { SELECT a=0, typeof(a) FROM t4 GROUP BY a }
+} {0 real 0 real}
+
+do_test select7-7.7 {
+  execsql {
+    CREATE TABLE t5(a TEXT, b INT);
+    INSERT INTO t5 VALUES(123, 456);
+    SELECT typeof(a), a FROM t5 GROUP BY a HAVING a<b;
+  }
+} {text 123}
+
+do_execsql_test 8.0 { 
+  CREATE TABLE t01(x, y);
+  CREATE TABLE t02(x, y);
+}
+
+do_catchsql_test 8.1 {
+  SELECT * FROM (
+    SELECT * FROM t01 UNION SELECT x FROM t02
+  ) WHERE y=1
+} {1 {SELECTs to the left and right of UNION do not have the same number of result columns}}
+
+do_catchsql_test 8.2 {
+  CREATE VIEW v0 as SELECT x, y FROM t01 UNION SELECT x FROM t02;
+  EXPLAIN QUERY PLAN SELECT * FROM v0 WHERE x='0' OR y;
+} {1 {SELECTs to the left and right of UNION do not have the same number of result columns}}
+
+
+finish_test
diff --git a/test/select8.test b/test/select8.test
new file mode 100644
index 0000000000000000000000000000000000000000..39b27394993db59d7e70b160eacda8ce6bf75118
--- /dev/null
+++ b/test/select8.test
@@ -0,0 +1,61 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. 
+#
+# The focus of this file is testing that LIMIT and OFFSET work for
+# unusual combinations SELECT statements.
+#
+# $Id: select8.test,v 1.1 2008/01/12 12:48:09 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+execsql {
+  CREATE TABLE songs(songid, artist, timesplayed);
+  INSERT INTO songs VALUES(1,'one',1);
+  INSERT INTO songs VALUES(2,'one',2);
+  INSERT INTO songs VALUES(3,'two',3);
+  INSERT INTO songs VALUES(4,'three',5);
+  INSERT INTO songs VALUES(5,'one',7);
+  INSERT INTO songs VALUES(6,'two',11);
+}
+set result [execsql {
+  SELECT DISTINCT artist,sum(timesplayed) AS total      
+  FROM songs      
+  GROUP BY LOWER(artist)      
+}]
+do_test select8-1.1 {
+  execsql {
+    SELECT DISTINCT artist,sum(timesplayed) AS total      
+    FROM songs      
+    GROUP BY LOWER(artist)      
+    LIMIT 1 OFFSET 1
+  }
+} [lrange $result 2 3]
+do_test select8-1.2 {
+  execsql {
+    SELECT DISTINCT artist,sum(timesplayed) AS total      
+    FROM songs      
+    GROUP BY LOWER(artist)      
+    LIMIT 2 OFFSET 1
+  }
+} [lrange $result 2 5]
+do_test select8-1.3 {
+  execsql {
+    SELECT DISTINCT artist,sum(timesplayed) AS total      
+    FROM songs      
+    GROUP BY LOWER(artist)      
+    LIMIT -1 OFFSET 2
+  }
+} [lrange $result 4 end]
+
+
+finish_test
diff --git a/test/select9.test b/test/select9.test
new file mode 100644
index 0000000000000000000000000000000000000000..bbed8e18fe45a88725049c66ec65b26702c1da28
--- /dev/null
+++ b/test/select9.test
@@ -0,0 +1,472 @@
+# 2008 June 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. 
+#
+# $Id: select9.test,v 1.4 2008/07/01 14:39:35 danielk1977 Exp $
+
+# The tests in this file are focused on test compound SELECT statements 
+# that have any or all of an ORDER BY, LIMIT or OFFSET clauses. As of
+# version 3.6.0, SQLite contains code to use SQL indexes where possible 
+# to optimize such statements.
+#
+
+# TODO Points:
+#
+#   * Are there any "column affinity" issues to consider?
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+#-------------------------------------------------------------------------
+# test_compound_select TESTNAME SELECT RESULT
+#
+#   This command is used to run multiple LIMIT/OFFSET test cases based on 
+#   the single SELECT statement passed as the second argument. The SELECT
+#   statement may not contain a LIMIT or OFFSET clause. This proc tests
+#   many statements of the form:
+#    
+#     "$SELECT limit $X offset $Y"
+#    
+#   for various values of $X and $Y.
+#    
+#   The third argument, $RESULT, should contain the expected result of
+#   the command [execsql $SELECT].
+#    
+#   The first argument, $TESTNAME, is used as the base test case name to
+#   pass to [do_test] for each individual LIMIT OFFSET test case.
+# 
+proc test_compound_select {testname sql result} {
+
+  set nCol 1
+  db eval $sql A {
+    set nCol [llength $A(*)]
+    break
+  }
+  set nRow [expr {[llength $result] / $nCol}]
+
+  set ::compound_sql $sql
+  do_test $testname { 
+    execsql $::compound_sql
+  } $result
+#return
+
+  set iLimitIncr  1
+  set iOffsetIncr 1
+  if {[info exists ::G(isquick)] && $::G(isquick) && $nRow>=5} {
+    set iOffsetIncr [expr $nRow / 5]
+    set iLimitIncr [expr $nRow / 5]
+  }
+
+  set iLimitEnd   [expr $nRow+$iLimitIncr]
+  set iOffsetEnd  [expr $nRow+$iOffsetIncr]
+
+  for {set iOffset 0} {$iOffset < $iOffsetEnd} {incr iOffset $iOffsetIncr} {
+    for {set iLimit 0} {$iLimit < $iLimitEnd} {incr iLimit} {
+  
+      set ::compound_sql "$sql LIMIT $iLimit"
+      if {$iOffset != 0} {
+        append ::compound_sql " OFFSET $iOffset"
+      }
+  
+      set iStart [expr {$iOffset*$nCol}]
+      set iEnd [expr {($iOffset*$nCol) + ($iLimit*$nCol) -1}]
+  
+      do_test $testname.limit=$iLimit.offset=$iOffset { 
+        execsql $::compound_sql
+      } [lrange $result $iStart $iEnd]
+    }
+  }
+}
+
+#-------------------------------------------------------------------------
+# test_compound_select_flippable TESTNAME SELECT RESULT
+#
+#   This command is for testing statements of the form:
+#
+#     <simple select 1> <compound op> <simple select 2> ORDER BY <order by>
+#
+#   where each <simple select> is a simple (non-compound) select statement
+#   and <compound op> is one of "INTERSECT", "UNION ALL" or "UNION".
+#
+#   This proc calls [test_compound_select] twice, once with the select
+#   statement as it is passed to this command, and once with the positions
+#   of <select statement 1> and <select statement 2> exchanged.
+#
+proc test_compound_select_flippable {testname sql result} {
+  test_compound_select $testname $sql $result
+
+  set select [string trim $sql]
+  set RE {(.*)(UNION ALL|INTERSECT|UNION)(.*)(ORDER BY.*)}
+  set rc [regexp $RE $select -> s1 op s2 order_by]
+  if {!$rc} {error "Statement is unflippable: $select"}
+
+  set flipsql "$s2 $op $s1 $order_by"
+  test_compound_select $testname.flipped $flipsql $result
+}
+
+#############################################################################
+# Begin tests.
+#
+
+# Create and populate a sample database.
+#
+do_test select9-1.0 {
+  execsql {
+    CREATE TABLE t1(a, b, c);
+    CREATE TABLE t2(d, e, f);
+    BEGIN;
+      INSERT INTO t1 VALUES(1,  'one',   'I');
+      INSERT INTO t1 VALUES(3,  NULL,    NULL);
+      INSERT INTO t1 VALUES(5,  'five',  'V');
+      INSERT INTO t1 VALUES(7,  'seven', 'VII');
+      INSERT INTO t1 VALUES(9,  NULL,    NULL);
+      INSERT INTO t1 VALUES(2,  'two',   'II');
+      INSERT INTO t1 VALUES(4,  'four',  'IV');
+      INSERT INTO t1 VALUES(6,  NULL,    NULL);
+      INSERT INTO t1 VALUES(8,  'eight', 'VIII');
+      INSERT INTO t1 VALUES(10, 'ten',   'X');
+
+      INSERT INTO t2 VALUES(1,  'two',      'IV');
+      INSERT INTO t2 VALUES(2,  'four',     'VIII');
+      INSERT INTO t2 VALUES(3,  NULL,       NULL);
+      INSERT INTO t2 VALUES(4,  'eight',    'XVI');
+      INSERT INTO t2 VALUES(5,  'ten',      'XX');
+      INSERT INTO t2 VALUES(6,  NULL,       NULL);
+      INSERT INTO t2 VALUES(7,  'fourteen', 'XXVIII');
+      INSERT INTO t2 VALUES(8,  'sixteen',  'XXXII');
+      INSERT INTO t2 VALUES(9,  NULL,       NULL);
+      INSERT INTO t2 VALUES(10, 'twenty',   'XL');
+
+    COMMIT;
+  }
+} {}
+
+# Each iteration of this loop runs the same tests with a different set
+# of indexes present within the database schema. The data returned by
+# the compound SELECT statements in the test cases should be the same 
+# in each case.
+#
+set iOuterLoop 1
+foreach indexes [list {
+  /* Do not create any indexes. */
+} {
+  CREATE INDEX i1 ON t1(a)
+} {
+  CREATE INDEX i2 ON t1(b)
+} {
+  CREATE INDEX i3 ON t2(d)
+} {
+  CREATE INDEX i4 ON t2(e)
+}] {
+
+  do_test select9-1.$iOuterLoop.1 {
+    execsql $indexes
+  } {}
+
+  # Test some 2-way UNION ALL queries. No WHERE clauses.
+  #
+  test_compound_select select9-1.$iOuterLoop.2 {
+    SELECT a, b FROM t1 UNION ALL SELECT d, e FROM t2 
+  } {1 one 3 {} 5 five 7 seven 9 {} 2 two 4 four 6 {} 8 eight 10 ten 1 two 2 four 3 {} 4 eight 5 ten 6 {} 7 fourteen 8 sixteen 9 {} 10 twenty}
+  test_compound_select select9-1.$iOuterLoop.3 {
+    SELECT a, b FROM t1 UNION ALL SELECT d, e FROM t2 ORDER BY 1 
+  } {1 one 1 two 2 two 2 four 3 {} 3 {} 4 four 4 eight 5 five 5 ten 6 {} 6 {} 7 seven 7 fourteen 8 eight 8 sixteen 9 {} 9 {} 10 ten 10 twenty}
+  test_compound_select select9-1.$iOuterLoop.4 {
+    SELECT a, b FROM t1 UNION ALL SELECT d, e FROM t2 ORDER BY 2 
+  } {3 {} 9 {} 6 {} 3 {} 6 {} 9 {} 8 eight 4 eight 5 five 4 four 2 four 7 fourteen 1 one 7 seven 8 sixteen 10 ten 5 ten 10 twenty 2 two 1 two}
+  test_compound_select_flippable select9-1.$iOuterLoop.5 {
+    SELECT a, b FROM t1 UNION ALL SELECT d, e FROM t2 ORDER BY 1, 2
+  } {1 one 1 two 2 four 2 two 3 {} 3 {} 4 eight 4 four 5 five 5 ten 6 {} 6 {} 7 fourteen 7 seven 8 eight 8 sixteen 9 {} 9 {} 10 ten 10 twenty}
+  test_compound_select_flippable select9-1.$iOuterLoop.6 {
+    SELECT a, b FROM t1 UNION ALL SELECT d, e FROM t2 ORDER BY 2, 1
+  } {3 {} 3 {} 6 {} 6 {} 9 {} 9 {} 4 eight 8 eight 5 five 2 four 4 four 7 fourteen 1 one 7 seven 8 sixteen 5 ten 10 ten 10 twenty 1 two 2 two}
+
+  # Test some 2-way UNION queries.
+  #
+  test_compound_select select9-1.$iOuterLoop.7 {
+    SELECT a, b FROM t1 UNION SELECT d, e FROM t2 
+  } {1 one 1 two 2 four 2 two 3 {} 4 eight 4 four 5 five 5 ten 6 {} 7 fourteen 7 seven 8 eight 8 sixteen 9 {} 10 ten 10 twenty}
+
+  test_compound_select select9-1.$iOuterLoop.8 {
+    SELECT a, b FROM t1 UNION SELECT d, e FROM t2 ORDER BY 1 
+  } {1 one 1 two 2 four 2 two 3 {} 4 eight 4 four 5 five 5 ten 6 {} 7 fourteen 7 seven 8 eight 8 sixteen 9 {} 10 ten 10 twenty}
+
+  test_compound_select select9-1.$iOuterLoop.9 {
+    SELECT a, b FROM t1 UNION SELECT d, e FROM t2 ORDER BY 2 
+  } {3 {} 6 {} 9 {} 4 eight 8 eight 5 five 2 four 4 four 7 fourteen 1 one 7 seven 8 sixteen 5 ten 10 ten 10 twenty 1 two 2 two}
+
+  test_compound_select_flippable select9-1.$iOuterLoop.10 {
+    SELECT a, b FROM t1 UNION SELECT d, e FROM t2 ORDER BY 1, 2
+  } {1 one 1 two 2 four 2 two 3 {} 4 eight 4 four 5 five 5 ten 6 {} 7 fourteen 7 seven 8 eight 8 sixteen 9 {} 10 ten 10 twenty}
+
+  test_compound_select_flippable select9-1.$iOuterLoop.11 {
+    SELECT a, b FROM t1 UNION SELECT d, e FROM t2 ORDER BY 2, 1
+  } {3 {} 6 {} 9 {} 4 eight 8 eight 5 five 2 four 4 four 7 fourteen 1 one 7 seven 8 sixteen 5 ten 10 ten 10 twenty 1 two 2 two}
+
+  # Test some 2-way INTERSECT queries.
+  #
+  test_compound_select select9-1.$iOuterLoop.11 {
+    SELECT a, b FROM t1 INTERSECT SELECT d, e FROM t2 
+  } {3 {} 6 {} 9 {}}
+  test_compound_select_flippable select9-1.$iOuterLoop.12 {
+    SELECT a, b FROM t1 INTERSECT SELECT d, e FROM t2 ORDER BY 1
+  } {3 {} 6 {} 9 {}}
+  test_compound_select select9-1.$iOuterLoop.13 {
+    SELECT a, b FROM t1 INTERSECT SELECT d, e FROM t2 ORDER BY 2
+  } {3 {} 6 {} 9 {}}
+  test_compound_select_flippable select9-1.$iOuterLoop.14 {
+    SELECT a, b FROM t1 INTERSECT SELECT d, e FROM t2 ORDER BY 2, 1
+  } {3 {} 6 {} 9 {}}
+  test_compound_select_flippable select9-1.$iOuterLoop.15 {
+    SELECT a, b FROM t1 INTERSECT SELECT d, e FROM t2 ORDER BY 1, 2
+  } {3 {} 6 {} 9 {}}
+
+  # Test some 2-way EXCEPT queries.
+  #
+  test_compound_select select9-1.$iOuterLoop.16 {
+    SELECT a, b FROM t1 EXCEPT SELECT d, e FROM t2 
+  } {1 one 2 two 4 four 5 five 7 seven 8 eight 10 ten}
+
+  test_compound_select select9-1.$iOuterLoop.17 {
+    SELECT a, b FROM t1 EXCEPT SELECT d, e FROM t2 ORDER BY 1 
+  } {1 one 2 two 4 four 5 five 7 seven 8 eight 10 ten}
+
+  test_compound_select select9-1.$iOuterLoop.18 {
+    SELECT a, b FROM t1 EXCEPT SELECT d, e FROM t2 ORDER BY 2 
+  } {8 eight 5 five 4 four 1 one 7 seven 10 ten 2 two}
+
+  test_compound_select select9-1.$iOuterLoop.19 {
+    SELECT a, b FROM t1 EXCEPT SELECT d, e FROM t2 ORDER BY 1, 2
+  } {1 one 2 two 4 four 5 five 7 seven 8 eight 10 ten}
+
+  test_compound_select select9-1.$iOuterLoop.20 {
+    SELECT a, b FROM t1 EXCEPT SELECT d, e FROM t2 ORDER BY 2, 1
+  } {8 eight 5 five 4 four 1 one 7 seven 10 ten 2 two}
+
+  incr iOuterLoop
+}
+
+do_test select9-2.0 {
+  execsql {
+    DROP INDEX i1;
+    DROP INDEX i2;
+    DROP INDEX i3;
+    DROP INDEX i4;
+  }
+} {}
+
+proc reverse {lhs rhs} {
+  return [string compare $rhs $lhs]
+}
+db collate reverse reverse
+
+# This loop is similar to the previous one (test cases select9-1.*) 
+# except that the simple select statements have WHERE clauses attached
+# to them. Sometimes the WHERE clause may be satisfied using the same
+# index used for ORDER BY, sometimes not.
+#
+set iOuterLoop 1
+foreach indexes [list {
+  /* Do not create any indexes. */
+} {
+  CREATE INDEX i1 ON t1(a)
+} {
+  DROP INDEX i1;
+  CREATE INDEX i1 ON t1(b, a)
+} {
+  CREATE INDEX i2 ON t2(d DESC, e COLLATE REVERSE ASC);
+} {
+  CREATE INDEX i3 ON t1(a DESC);
+}] {
+  do_test select9-2.$iOuterLoop.1 {
+    execsql $indexes
+  } {}
+
+  test_compound_select_flippable select9-2.$iOuterLoop.2 {
+    SELECT * FROM t1 WHERE a<5 UNION SELECT * FROM t2 WHERE d>=5 ORDER BY 1
+  } {1 one I 2 two II 3 {} {} 4 four IV 5 ten XX 6 {} {} 7 fourteen XXVIII 8 sixteen XXXII 9 {} {} 10 twenty XL}
+
+  test_compound_select_flippable select9-2.$iOuterLoop.2 {
+    SELECT * FROM t1 WHERE a<5 UNION SELECT * FROM t2 WHERE d>=5 ORDER BY 2, 1
+  } {3 {} {} 6 {} {} 9 {} {} 4 four IV 7 fourteen XXVIII 1 one I 8 sixteen XXXII 5 ten XX 10 twenty XL 2 two II}
+
+  test_compound_select_flippable select9-2.$iOuterLoop.3 {
+    SELECT * FROM t1 WHERE a<5 UNION SELECT * FROM t2 WHERE d>=5 
+    ORDER BY 2 COLLATE reverse, 1
+  } {3 {} {} 6 {} {} 9 {} {} 2 two II 10 twenty XL 5 ten XX 8 sixteen XXXII 1 one I 7 fourteen XXVIII 4 four IV}
+
+  test_compound_select_flippable select9-2.$iOuterLoop.4 {
+    SELECT * FROM t1 WHERE a<5 UNION ALL SELECT * FROM t2 WHERE d>=5 ORDER BY 1
+  } {1 one I 2 two II 3 {} {} 4 four IV 5 ten XX 6 {} {} 7 fourteen XXVIII 8 sixteen XXXII 9 {} {} 10 twenty XL}
+
+  test_compound_select_flippable select9-2.$iOuterLoop.5 {
+    SELECT * FROM t1 WHERE a<5 UNION ALL SELECT * FROM t2 WHERE d>=5 ORDER BY 2, 1
+  } {3 {} {} 6 {} {} 9 {} {} 4 four IV 7 fourteen XXVIII 1 one I 8 sixteen XXXII 5 ten XX 10 twenty XL 2 two II}
+
+  test_compound_select_flippable select9-2.$iOuterLoop.6 {
+    SELECT * FROM t1 WHERE a<5 UNION ALL SELECT * FROM t2 WHERE d>=5 
+    ORDER BY 2 COLLATE reverse, 1
+  } {3 {} {} 6 {} {} 9 {} {} 2 two II 10 twenty XL 5 ten XX 8 sixteen XXXII 1 one I 7 fourteen XXVIII 4 four IV}
+
+  test_compound_select select9-2.$iOuterLoop.4 {
+    SELECT a FROM t1 WHERE a<8 EXCEPT SELECT d FROM t2 WHERE d<=3 ORDER BY 1
+  } {4 5 6 7}
+
+  test_compound_select select9-2.$iOuterLoop.4 {
+    SELECT a FROM t1 WHERE a<8 INTERSECT SELECT d FROM t2 WHERE d<=3 ORDER BY 1
+  } {1 2 3}
+
+}
+
+do_test select9-2.X {
+  execsql {
+    DROP INDEX i1;
+    DROP INDEX i2;
+    DROP INDEX i3;
+  }
+} {}
+
+# This procedure executes the SQL.  Then it checks the generated program
+# for the SQL and appends a "nosort" to the result if the program contains the
+# SortCallback opcode.  If the program does not contain the SortCallback
+# opcode it appends "sort"
+#
+proc cksort {sql} {
+  set ::sqlite_sort_count 0
+  set data [execsql $sql]
+  if {$::sqlite_sort_count} {set x sort} {set x nosort}
+  lappend data $x
+  return $data
+}
+
+# If the right indexes exist, the following query:
+#
+#     SELECT t1.a FROM t1 UNION ALL SELECT t2.d FROM t2 ORDER BY 1
+#
+# can use indexes to run without doing a in-memory sort operation.
+# This block of tests (select9-3.*) is used to check if the same 
+# is possible with:
+#
+#     CREATE VIEW v1 AS SELECT a FROM t1 UNION ALL SELECT d FROM t2
+#     SELECT a FROM v1 ORDER BY 1
+#
+# It turns out that it is.
+#
+do_test select9-3.1 {
+  cksort { SELECT a FROM t1 ORDER BY 1 }
+} {1 2 3 4 5 6 7 8 9 10 sort}
+do_test select9-3.2 {
+  execsql { CREATE INDEX i1 ON t1(a) }
+  cksort { SELECT a FROM t1 ORDER BY 1 }
+} {1 2 3 4 5 6 7 8 9 10 nosort}
+do_test select9-3.3 {
+  cksort { SELECT a FROM t1 UNION ALL SELECT d FROM t2 ORDER BY 1 LIMIT 5 }
+} {1 1 2 2 3 sort}
+do_test select9-3.4 {
+  execsql { CREATE INDEX i2 ON t2(d) }
+  cksort { SELECT a FROM t1 UNION ALL SELECT d FROM t2 ORDER BY 1 LIMIT 5 }
+} {1 1 2 2 3 nosort}
+do_test select9-3.5 {
+  execsql { CREATE VIEW v1 AS SELECT a FROM t1 UNION ALL SELECT d FROM t2 }
+  cksort { SELECT a FROM v1 ORDER BY 1 LIMIT 5 }
+} {1 1 2 2 3 nosort}
+do_test select9-3.X {
+  execsql {
+    DROP INDEX i1;
+    DROP INDEX i2;
+    DROP VIEW v1;
+  }
+} {}
+
+# This block of tests is the same as the preceding one, except that
+# "UNION" is tested instead of "UNION ALL".
+#
+do_test select9-4.1 {
+  cksort { SELECT a FROM t1 ORDER BY 1 }
+} {1 2 3 4 5 6 7 8 9 10 sort}
+do_test select9-4.2 {
+  execsql { CREATE INDEX i1 ON t1(a) }
+  cksort { SELECT a FROM t1 ORDER BY 1 }
+} {1 2 3 4 5 6 7 8 9 10 nosort}
+do_test select9-4.3 {
+  cksort { SELECT a FROM t1 UNION SELECT d FROM t2 ORDER BY 1 LIMIT 5 }
+} {1 2 3 4 5 sort}
+do_test select9-4.4 {
+  execsql { CREATE INDEX i2 ON t2(d) }
+  cksort { SELECT a FROM t1 UNION SELECT d FROM t2 ORDER BY 1 LIMIT 5 }
+} {1 2 3 4 5 nosort}
+do_test select9-4.5 {
+  execsql { CREATE VIEW v1 AS SELECT a FROM t1 UNION SELECT d FROM t2 }
+  cksort { SELECT a FROM v1 ORDER BY 1 LIMIT 5 }
+} {1 2 3 4 5 sort}
+do_test select9-4.X {
+  execsql {
+    DROP INDEX i1;
+    DROP INDEX i2;
+    DROP VIEW v1;
+  }
+} {}
+
+# Testing to make sure that queries involving a view of a compound select
+# are planned efficiently.  This detects a problem reported on the mailing
+# list on 2012-04-26.  See
+#
+#  http://www.mail-archive.com/sqlite-users%40sqlite.org/msg69746.html
+#
+# For additional information.
+#
+do_test select9-5.1 {
+  db eval {
+    CREATE TABLE t51(x, y);
+    CREATE TABLE t52(x, y);
+    CREATE VIEW v5 as
+       SELECT x, y FROM t51
+       UNION ALL
+       SELECT x, y FROM t52;
+    CREATE INDEX t51x ON t51(x);
+    CREATE INDEX t52x ON t52(x);
+    EXPLAIN QUERY PLAN
+       SELECT * FROM v5 WHERE x='12345' ORDER BY y;
+  }
+} {~/SCAN/}  ;# Uses indices with "*"
+do_test select9-5.2 {
+  db eval {
+    EXPLAIN QUERY PLAN
+       SELECT x, y FROM v5 WHERE x='12345' ORDER BY y;
+  }
+} {~/SCAN/}  ;# Uses indices with "x, y"
+do_test select9-5.3 {
+  db eval {
+    EXPLAIN QUERY PLAN
+       SELECT x, y FROM v5 WHERE +x='12345' ORDER BY y;
+  }
+} {/SCAN/}   ;# Full table scan if the "+x" prevents index usage.
+
+# 2013-07-09:  Ticket [490a4b7235624298]: 
+# "WHERE 0" on the first element of a UNION causes an assertion fault
+#
+do_execsql_test select9-6.1 {
+  CREATE TABLE t61(a);
+  CREATE TABLE t62(b);
+  INSERT INTO t61 VALUES(111);
+  INSERT INTO t62 VALUES(222);
+  SELECT a FROM t61 WHERE 0 UNION SELECT b FROM t62;
+} {222}
+do_execsql_test select9-6.2 {
+  SELECT a FROM t61 WHERE 0 UNION ALL SELECT b FROM t62;
+} {222}
+do_execsql_test select9-6.3 {
+  SELECT a FROM t61 UNION SELECT b FROM t62 WHERE 0;
+} {111}
+
+
+
+finish_test
diff --git a/test/selectA.test b/test/selectA.test
new file mode 100644
index 0000000000000000000000000000000000000000..91b1548488812481de89b3dc3c0dc1be6c31d705
--- /dev/null
+++ b/test/selectA.test
@@ -0,0 +1,1510 @@
+# 2008 June 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. 
+#
+# The focus of this file is testing the compound-SELECT merge
+# optimization.  Or, in other words, making sure that all
+# possible combinations of UNION, UNION ALL, EXCEPT, and
+# INTERSECT work together with an ORDER BY clause (with or w/o
+# explicit sort order and explicit collating secquites) and
+# with and without optional LIMIT and OFFSET clauses.
+#
+# $Id: selectA.test,v 1.6 2008/08/21 14:24:29 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix selectA
+
+ifcapable !compound {
+  finish_test
+  return
+}
+
+do_test selectA-1.0 {
+  execsql {
+    CREATE TABLE t1(a,b,c COLLATE NOCASE);
+    INSERT INTO t1 VALUES(1,'a','a');
+    INSERT INTO t1 VALUES(9.9, 'b', 'B');
+    INSERT INTO t1 VALUES(NULL, 'C', 'c');
+    INSERT INTO t1 VALUES('hello', 'd', 'D');
+    INSERT INTO t1 VALUES(x'616263', 'e', 'e');
+    SELECT * FROM t1;
+  }
+} {1 a a 9.9 b B {} C c hello d D abc e e}
+do_test selectA-1.1 {
+  execsql {
+    CREATE TABLE t2(x,y,z COLLATE NOCASE);
+    INSERT INTO t2 VALUES(NULL,'U','u');
+    INSERT INTO t2 VALUES('mad', 'Z', 'z');
+    INSERT INTO t2 VALUES(x'68617265', 'm', 'M');
+    INSERT INTO t2 VALUES(5.2e6, 'X', 'x');
+    INSERT INTO t2 VALUES(-23, 'Y', 'y');
+    SELECT * FROM t2;
+  }
+} {{} U u mad Z z hare m M 5200000.0 X x -23 Y y}
+do_test selectA-1.2 {
+  execsql {
+    CREATE TABLE t3(a,b,c COLLATE NOCASE);
+    INSERT INTO t3 SELECT * FROM t1;
+    INSERT INTO t3 SELECT * FROM t2;
+    INSERT INTO t3 SELECT * FROM t1;
+    INSERT INTO t3 SELECT * FROM t2;
+    INSERT INTO t3 SELECT * FROM t1;
+    INSERT INTO t3 SELECT * FROM t2;
+    SELECT count(*) FROM t3;
+  }
+} {30}
+
+do_test selectA-2.1 {
+  execsql {
+    SELECT a,b,c FROM t1 UNION ALL SELECT x,y,z FROM t2
+    ORDER BY a,b,c
+  }
+} {{} C c {} U u -23 Y y 1 a a 9.9 b B 5200000.0 X x hello d D mad Z z abc e e hare m M}
+do_test selectA-2.1.1 {   # Ticket #3314
+  execsql {
+    SELECT t1.a, t1.b, t1.c FROM t1 UNION ALL SELECT x,y,z FROM t2
+    ORDER BY a,b,c
+  }
+} {{} C c {} U u -23 Y y 1 a a 9.9 b B 5200000.0 X x hello d D mad Z z abc e e hare m M}
+do_test selectA-2.1.2 {   # Ticket #3314
+  execsql {
+    SELECT a,b,c FROM t1 UNION ALL SELECT x,y,z FROM t2
+    ORDER BY t1.a, t1.b, t1.c
+  }
+} {{} C c {} U u -23 Y y 1 a a 9.9 b B 5200000.0 X x hello d D mad Z z abc e e hare m M}
+do_test selectA-2.2 {
+  execsql {
+    SELECT a,b,c FROM t1 UNION ALL SELECT x,y,z FROM t2
+    ORDER BY a DESC,b,c
+  }
+} {hare m M abc e e mad Z z hello d D 5200000.0 X x 9.9 b B 1 a a -23 Y y {} C c {} U u}
+do_test selectA-2.3 {
+  execsql {
+    SELECT a,b,c FROM t1 UNION ALL SELECT x,y,z FROM t2
+    ORDER BY a,c,b
+  }
+} {{} C c {} U u -23 Y y 1 a a 9.9 b B 5200000.0 X x hello d D mad Z z abc e e hare m M}
+do_test selectA-2.4 {
+  execsql {
+    SELECT a,b,c FROM t1 UNION ALL SELECT x,y,z FROM t2
+    ORDER BY b,a,c
+  }
+} {{} C c {} U u 5200000.0 X x -23 Y y mad Z z 1 a a 9.9 b B hello d D abc e e hare m M}
+do_test selectA-2.5 {
+  execsql {
+    SELECT a,b,c FROM t1 UNION ALL SELECT x,y,z FROM t2
+    ORDER BY b COLLATE NOCASE,a,c
+  }
+} {1 a a 9.9 b B {} C c hello d D abc e e hare m M {} U u 5200000.0 X x -23 Y y mad Z z}
+do_test selectA-2.6 {
+  execsql {
+    SELECT a,b,c FROM t1 UNION ALL SELECT x,y,z FROM t2
+    ORDER BY b COLLATE NOCASE DESC,a,c
+  }
+} {mad Z z -23 Y y 5200000.0 X x {} U u hare m M abc e e hello d D {} C c 9.9 b B 1 a a}
+do_test selectA-2.7 {
+  execsql {
+    SELECT a,b,c FROM t1 UNION ALL SELECT x,y,z FROM t2
+    ORDER BY c,b,a
+  }
+} {1 a a 9.9 b B {} C c hello d D abc e e hare m M {} U u 5200000.0 X x -23 Y y mad Z z}
+do_test selectA-2.8 {
+  execsql {
+    SELECT a,b,c FROM t1 UNION ALL SELECT x,y,z FROM t2
+    ORDER BY c,a,b
+  }
+} {1 a a 9.9 b B {} C c hello d D abc e e hare m M {} U u 5200000.0 X x -23 Y y mad Z z}
+do_test selectA-2.9 {
+  execsql {
+    SELECT a,b,c FROM t1 UNION ALL SELECT x,y,z FROM t2
+    ORDER BY c DESC,a,b
+  }
+} {mad Z z -23 Y y 5200000.0 X x {} U u hare m M abc e e hello d D {} C c 9.9 b B 1 a a}
+do_test selectA-2.10 {
+  execsql {
+    SELECT a,b,c FROM t1 UNION ALL SELECT x,y,z FROM t2
+    ORDER BY c COLLATE BINARY DESC,a,b
+  }
+} {mad Z z -23 Y y 5200000.0 X x {} U u abc e e {} C c 1 a a hare m M hello d D 9.9 b B}
+do_test selectA-2.11 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION ALL SELECT a,b,c FROM t1
+    ORDER BY a,b,c
+  }
+} {{} C c {} U u -23 Y y 1 a a 9.9 b B 5200000.0 X x hello d D mad Z z abc e e hare m M}
+do_test selectA-2.12 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION ALL SELECT a,b,c FROM t1
+    ORDER BY a DESC,b,c
+  }
+} {hare m M abc e e mad Z z hello d D 5200000.0 X x 9.9 b B 1 a a -23 Y y {} C c {} U u}
+do_test selectA-2.13 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION ALL SELECT a,b,c FROM t1
+    ORDER BY a,c,b
+  }
+} {{} C c {} U u -23 Y y 1 a a 9.9 b B 5200000.0 X x hello d D mad Z z abc e e hare m M}
+do_test selectA-2.14 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION ALL SELECT a,b,c FROM t1
+    ORDER BY b,a,c
+  }
+} {{} C c {} U u 5200000.0 X x -23 Y y mad Z z 1 a a 9.9 b B hello d D abc e e hare m M}
+do_test selectA-2.15 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION ALL SELECT a,b,c FROM t1
+    ORDER BY b COLLATE NOCASE,a,c
+  }
+} {1 a a 9.9 b B {} C c hello d D abc e e hare m M {} U u 5200000.0 X x -23 Y y mad Z z}
+do_test selectA-2.16 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION ALL SELECT a,b,c FROM t1
+    ORDER BY b COLLATE NOCASE DESC,a,c
+  }
+} {mad Z z -23 Y y 5200000.0 X x {} U u hare m M abc e e hello d D {} C c 9.9 b B 1 a a}
+do_test selectA-2.17 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION ALL SELECT a,b,c FROM t1
+    ORDER BY c,b,a
+  }
+} {1 a a 9.9 b B {} C c hello d D abc e e hare m M {} U u 5200000.0 X x -23 Y y mad Z z}
+do_test selectA-2.18 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION ALL SELECT a,b,c FROM t1
+    ORDER BY c,a,b
+  }
+} {1 a a 9.9 b B {} C c hello d D abc e e hare m M {} U u 5200000.0 X x -23 Y y mad Z z}
+do_test selectA-2.19 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION ALL SELECT a,b,c FROM t1
+    ORDER BY c DESC,a,b
+  }
+} {mad Z z -23 Y y 5200000.0 X x {} U u hare m M abc e e hello d D {} C c 9.9 b B 1 a a}
+do_test selectA-2.20 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION ALL SELECT a,b,c FROM t1
+    ORDER BY c COLLATE BINARY DESC,a,b
+  }
+} {mad Z z -23 Y y 5200000.0 X x {} U u abc e e {} C c 1 a a hare m M hello d D 9.9 b B}
+do_test selectA-2.21 {
+  execsql {
+    SELECT a,b,c FROM t1 UNION SELECT x,y,z FROM t2
+    ORDER BY a,b,c
+  }
+} {{} C c {} U u -23 Y y 1 a a 9.9 b B 5200000.0 X x hello d D mad Z z abc e e hare m M}
+do_test selectA-2.22 {
+  execsql {
+    SELECT a,b,c FROM t1 UNION SELECT x,y,z FROM t2
+    ORDER BY a DESC,b,c
+  }
+} {hare m M abc e e mad Z z hello d D 5200000.0 X x 9.9 b B 1 a a -23 Y y {} C c {} U u}
+do_test selectA-2.23 {
+  execsql {
+    SELECT a,b,c FROM t1 UNION SELECT x,y,z FROM t2
+    ORDER BY a,c,b
+  }
+} {{} C c {} U u -23 Y y 1 a a 9.9 b B 5200000.0 X x hello d D mad Z z abc e e hare m M}
+do_test selectA-2.24 {
+  execsql {
+    SELECT a,b,c FROM t1 UNION SELECT x,y,z FROM t2
+    ORDER BY b,a,c
+  }
+} {{} C c {} U u 5200000.0 X x -23 Y y mad Z z 1 a a 9.9 b B hello d D abc e e hare m M}
+do_test selectA-2.25 {
+  execsql {
+    SELECT a,b,c FROM t1 UNION SELECT x,y,z FROM t2
+    ORDER BY b COLLATE NOCASE,a,c
+  }
+} {1 a a 9.9 b B {} C c hello d D abc e e hare m M {} U u 5200000.0 X x -23 Y y mad Z z}
+do_test selectA-2.26 {
+  execsql {
+    SELECT a,b,c FROM t1 UNION SELECT x,y,z FROM t2
+    ORDER BY b COLLATE NOCASE DESC,a,c
+  }
+} {mad Z z -23 Y y 5200000.0 X x {} U u hare m M abc e e hello d D {} C c 9.9 b B 1 a a}
+do_test selectA-2.27 {
+  execsql {
+    SELECT a,b,c FROM t1 UNION SELECT x,y,z FROM t2
+    ORDER BY c,b,a
+  }
+} {1 a a 9.9 b B {} C c hello d D abc e e hare m M {} U u 5200000.0 X x -23 Y y mad Z z}
+do_test selectA-2.28 {
+  execsql {
+    SELECT a,b,c FROM t1 UNION SELECT x,y,z FROM t2
+    ORDER BY c,a,b
+  }
+} {1 a a 9.9 b B {} C c hello d D abc e e hare m M {} U u 5200000.0 X x -23 Y y mad Z z}
+do_test selectA-2.29 {
+  execsql {
+    SELECT a,b,c FROM t1 UNION SELECT x,y,z FROM t2
+    ORDER BY c DESC,a,b
+  }
+} {mad Z z -23 Y y 5200000.0 X x {} U u hare m M abc e e hello d D {} C c 9.9 b B 1 a a}
+do_test selectA-2.30 {
+  execsql {
+    SELECT a,b,c FROM t1 UNION SELECT x,y,z FROM t2
+    ORDER BY c COLLATE BINARY DESC,a,b
+  }
+} {mad Z z -23 Y y 5200000.0 X x {} U u abc e e {} C c 1 a a hare m M hello d D 9.9 b B}
+do_test selectA-2.31 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION SELECT a,b,c FROM t1
+    ORDER BY a,b,c
+  }
+} {{} C c {} U u -23 Y y 1 a a 9.9 b B 5200000.0 X x hello d D mad Z z abc e e hare m M}
+do_test selectA-2.32 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION SELECT a,b,c FROM t1
+    ORDER BY a DESC,b,c
+  }
+} {hare m M abc e e mad Z z hello d D 5200000.0 X x 9.9 b B 1 a a -23 Y y {} C c {} U u}
+do_test selectA-2.33 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION SELECT a,b,c FROM t1
+    ORDER BY a,c,b
+  }
+} {{} C c {} U u -23 Y y 1 a a 9.9 b B 5200000.0 X x hello d D mad Z z abc e e hare m M}
+do_test selectA-2.34 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION SELECT a,b,c FROM t1
+    ORDER BY b,a,c
+  }
+} {{} C c {} U u 5200000.0 X x -23 Y y mad Z z 1 a a 9.9 b B hello d D abc e e hare m M}
+do_test selectA-2.35 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION SELECT a,b,c FROM t1
+    ORDER BY y COLLATE NOCASE,x,z
+  }
+} {1 a a 9.9 b B {} C c hello d D abc e e hare m M {} U u 5200000.0 X x -23 Y y mad Z z}
+do_test selectA-2.36 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION SELECT a,b,c FROM t1
+    ORDER BY y COLLATE NOCASE DESC,x,z
+  }
+} {mad Z z -23 Y y 5200000.0 X x {} U u hare m M abc e e hello d D {} C c 9.9 b B 1 a a}
+do_test selectA-2.37 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION SELECT a,b,c FROM t1
+    ORDER BY c,b,a
+  }
+} {1 a a 9.9 b B {} C c hello d D abc e e hare m M {} U u 5200000.0 X x -23 Y y mad Z z}
+do_test selectA-2.38 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION SELECT a,b,c FROM t1
+    ORDER BY c,a,b
+  }
+} {1 a a 9.9 b B {} C c hello d D abc e e hare m M {} U u 5200000.0 X x -23 Y y mad Z z}
+do_test selectA-2.39 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION SELECT a,b,c FROM t1
+    ORDER BY c DESC,a,b
+  }
+} {mad Z z -23 Y y 5200000.0 X x {} U u hare m M abc e e hello d D {} C c 9.9 b B 1 a a}
+do_test selectA-2.40 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION SELECT a,b,c FROM t1
+    ORDER BY z COLLATE BINARY DESC,x,y
+  }
+} {mad Z z -23 Y y 5200000.0 X x {} U u abc e e {} C c 1 a a hare m M hello d D 9.9 b B}
+do_test selectA-2.41 {
+  execsql {
+    SELECT a,b,c FROM t1 EXCEPT SELECT a,b,c FROM t1 WHERE b>='d'
+    ORDER BY a,b,c
+  }
+} {{} C c 1 a a 9.9 b B}
+do_test selectA-2.42 {
+  execsql {
+    SELECT a,b,c FROM t1 INTERSECT SELECT a,b,c FROM t1 WHERE b>='d'
+    ORDER BY a,b,c
+  }
+} {hello d D abc e e}
+do_test selectA-2.43 {
+  execsql {
+    SELECT a,b,c FROM t1 WHERE b>='d' INTERSECT SELECT a,b,c FROM t1
+    ORDER BY a,b,c
+  }
+} {hello d D abc e e}
+do_test selectA-2.44 {
+  execsql {
+    SELECT a,b,c FROM t1 EXCEPT SELECT a,b,c FROM t1 WHERE b<'d'
+    ORDER BY a,b,c
+  }
+} {hello d D abc e e}
+do_test selectA-2.45 {
+  execsql {
+    SELECT a,b,c FROM t1 INTERSECT SELECT a,b,c FROM t1 WHERE b<'d'
+    ORDER BY a,b,c
+  }
+} {{} C c 1 a a 9.9 b B}
+do_test selectA-2.46 {
+  execsql {
+    SELECT a,b,c FROM t1 WHERE b<'d' INTERSECT SELECT a,b,c FROM t1
+    ORDER BY a,b,c
+  }
+} {{} C c 1 a a 9.9 b B}
+do_test selectA-2.47 {
+  execsql {
+    SELECT a,b,c FROM t1 EXCEPT SELECT a,b,c FROM t1 WHERE b>='d'
+    ORDER BY a DESC
+  }
+} {9.9 b B 1 a a {} C c}
+do_test selectA-2.48 {
+  execsql {
+    SELECT a,b,c FROM t1 INTERSECT SELECT a,b,c FROM t1 WHERE b>='d'
+    ORDER BY a DESC
+  }
+} {abc e e hello d D}
+do_test selectA-2.49 {
+  execsql {
+    SELECT a,b,c FROM t1 WHERE b>='d' INTERSECT SELECT a,b,c FROM t1
+    ORDER BY a DESC
+  }
+} {abc e e hello d D}
+do_test selectA-2.50 {
+  execsql {
+    SELECT a,b,c FROM t1 EXCEPT SELECT a,b,c FROM t1 WHERE b<'d'
+    ORDER BY a DESC
+  }
+} {abc e e hello d D}
+do_test selectA-2.51 {
+  execsql {
+    SELECT a,b,c FROM t1 INTERSECT SELECT a,b,c FROM t1 WHERE b<'d'
+    ORDER BY a DESC
+  }
+} {9.9 b B 1 a a {} C c}
+do_test selectA-2.52 {
+  execsql {
+    SELECT a,b,c FROM t1 WHERE b<'d' INTERSECT SELECT a,b,c FROM t1
+    ORDER BY a DESC
+  }
+} {9.9 b B 1 a a {} C c}
+do_test selectA-2.53 {
+  execsql {
+    SELECT a,b,c FROM t1 EXCEPT SELECT a,b,c FROM t1 WHERE b>='d'
+    ORDER BY b, a DESC
+  }
+} {{} C c 1 a a 9.9 b B}
+do_test selectA-2.54 {
+  execsql {
+    SELECT a,b,c FROM t1 INTERSECT SELECT a,b,c FROM t1 WHERE b>='d'
+    ORDER BY b
+  }
+} {hello d D abc e e}
+do_test selectA-2.55 {
+  execsql {
+    SELECT a,b,c FROM t1 WHERE b>='d' INTERSECT SELECT a,b,c FROM t1
+    ORDER BY b DESC, c
+  }
+} {abc e e hello d D}
+do_test selectA-2.56 {
+  execsql {
+    SELECT a,b,c FROM t1 EXCEPT SELECT a,b,c FROM t1 WHERE b<'d'
+    ORDER BY b, c DESC, a
+  }
+} {hello d D abc e e}
+do_test selectA-2.57 {
+  execsql {
+    SELECT a,b,c FROM t1 INTERSECT SELECT a,b,c FROM t1 WHERE b<'d'
+    ORDER BY b COLLATE NOCASE
+  }
+} {1 a a 9.9 b B {} C c}
+do_test selectA-2.58 {
+  execsql {
+    SELECT a,b,c FROM t1 WHERE b<'d' INTERSECT SELECT a,b,c FROM t1
+    ORDER BY b
+  }
+} {{} C c 1 a a 9.9 b B}
+do_test selectA-2.59 {
+  execsql {
+    SELECT a,b,c FROM t1 EXCEPT SELECT a,b,c FROM t1 WHERE b>='d'
+    ORDER BY c, a DESC
+  }
+} {1 a a 9.9 b B {} C c}
+do_test selectA-2.60 {
+  execsql {
+    SELECT a,b,c FROM t1 INTERSECT SELECT a,b,c FROM t1 WHERE b>='d'
+    ORDER BY c
+  }
+} {hello d D abc e e}
+do_test selectA-2.61 {
+  execsql {
+    SELECT a,b,c FROM t1 WHERE b>='d' INTERSECT SELECT a,b,c FROM t1
+    ORDER BY c COLLATE BINARY, b DESC, c, a, b, c, a, b, c
+  }
+} {hello d D abc e e}
+do_test selectA-2.62 {
+  execsql {
+    SELECT a,b,c FROM t1 EXCEPT SELECT a,b,c FROM t1 WHERE b<'d'
+    ORDER BY c DESC, a
+  }
+} {abc e e hello d D}
+do_test selectA-2.63 {
+  execsql {
+    SELECT a,b,c FROM t1 INTERSECT SELECT a,b,c FROM t1 WHERE b<'d'
+    ORDER BY c COLLATE NOCASE
+  }
+} {1 a a 9.9 b B {} C c}
+do_test selectA-2.64 {
+  execsql {
+    SELECT a,b,c FROM t1 WHERE b<'d' INTERSECT SELECT a,b,c FROM t1
+    ORDER BY c
+  }
+} {1 a a 9.9 b B {} C c}
+do_test selectA-2.65 {
+  execsql {
+    SELECT a,b,c FROM t3 INTERSECT SELECT a,b,c FROM t1 WHERE b<'d'
+    ORDER BY c COLLATE NOCASE
+  }
+} {1 a a 9.9 b B {} C c}
+do_test selectA-2.66 {
+  execsql {
+    SELECT a,b,c FROM t1 WHERE b<'d' INTERSECT SELECT a,b,c FROM t3
+    ORDER BY c
+  }
+} {1 a a 9.9 b B {} C c}
+do_test selectA-2.67 {
+  execsql {
+    SELECT a,b,c FROM t1 EXCEPT SELECT a,b,c FROM t3 WHERE b<'d'
+    ORDER BY c DESC, a
+  }
+} {abc e e hello d D}
+do_test selectA-2.68 {
+  execsql {
+    SELECT a,b,c FROM t1 EXCEPT SELECT a,b,c FROM t1 WHERE b<'d'
+    INTERSECT SELECT a,b,c FROM t3
+    EXCEPT SELECT b,c,a FROM t3
+    ORDER BY c DESC, a
+  }
+} {abc e e hello d D}
+do_test selectA-2.69 {
+  execsql {
+    SELECT a,b,c FROM t1 INTERSECT SELECT a,b,c FROM t1 WHERE b<'d'
+    INTERSECT SELECT a,b,c FROM t3
+    EXCEPT SELECT b,c,a FROM t3
+    ORDER BY c COLLATE NOCASE
+  }
+} {1 a a 9.9 b B {} C c}
+do_test selectA-2.70 {
+  execsql {
+    SELECT a,b,c FROM t1 WHERE b<'d' INTERSECT SELECT a,b,c FROM t1
+    INTERSECT SELECT a,b,c FROM t3
+    EXCEPT SELECT b,c,a FROM t3
+    ORDER BY c
+  }
+} {1 a a 9.9 b B {} C c}
+do_test selectA-2.71 {
+  execsql {
+    SELECT a,b,c FROM t1 WHERE b<'d'
+    INTERSECT SELECT a,b,c FROM t1
+    INTERSECT SELECT a,b,c FROM t3
+    EXCEPT SELECT b,c,a FROM t3
+    INTERSECT SELECT a,b,c FROM t1
+    EXCEPT SELECT x,y,z FROM t2
+    INTERSECT SELECT a,b,c FROM t3
+    EXCEPT SELECT y,x,z FROM t2
+    INTERSECT SELECT a,b,c FROM t1
+    EXCEPT SELECT c,b,a FROM t3
+    ORDER BY c
+  }
+} {1 a a 9.9 b B {} C c}
+do_test selectA-2.72 {
+  execsql {
+    SELECT a,b,c FROM t3 UNION SELECT x,y,z FROM t2
+    ORDER BY a,b,c
+  }
+} {{} C c {} U u -23 Y y 1 a a 9.9 b B 5200000.0 X x hello d D mad Z z abc e e hare m M}
+do_test selectA-2.73 {
+  execsql {
+    SELECT a,b,c FROM t3 UNION SELECT x,y,z FROM t2
+    ORDER BY a DESC,b,c
+  }
+} {hare m M abc e e mad Z z hello d D 5200000.0 X x 9.9 b B 1 a a -23 Y y {} C c {} U u}
+do_test selectA-2.74 {
+  execsql {
+    SELECT a,b,c FROM t3 UNION SELECT x,y,z FROM t2
+    ORDER BY a,c,b
+  }
+} {{} C c {} U u -23 Y y 1 a a 9.9 b B 5200000.0 X x hello d D mad Z z abc e e hare m M}
+do_test selectA-2.75 {
+  execsql {
+    SELECT a,b,c FROM t3 UNION SELECT x,y,z FROM t2
+    ORDER BY b,a,c
+  }
+} {{} C c {} U u 5200000.0 X x -23 Y y mad Z z 1 a a 9.9 b B hello d D abc e e hare m M}
+do_test selectA-2.76 {
+  execsql {
+    SELECT a,b,c FROM t3 UNION SELECT x,y,z FROM t2
+    ORDER BY b COLLATE NOCASE,a,c
+  }
+} {1 a a 9.9 b B {} C c hello d D abc e e hare m M {} U u 5200000.0 X x -23 Y y mad Z z}
+do_test selectA-2.77 {
+  execsql {
+    SELECT a,b,c FROM t3 UNION SELECT x,y,z FROM t2
+    ORDER BY b COLLATE NOCASE DESC,a,c
+  }
+} {mad Z z -23 Y y 5200000.0 X x {} U u hare m M abc e e hello d D {} C c 9.9 b B 1 a a}
+do_test selectA-2.78 {
+  execsql {
+    SELECT a,b,c FROM t3 UNION SELECT x,y,z FROM t2
+    ORDER BY c,b,a
+  }
+} {1 a a 9.9 b B {} C c hello d D abc e e hare m M {} U u 5200000.0 X x -23 Y y mad Z z}
+do_test selectA-2.79 {
+  execsql {
+    SELECT a,b,c FROM t3 UNION SELECT x,y,z FROM t2
+    ORDER BY c,a,b
+  }
+} {1 a a 9.9 b B {} C c hello d D abc e e hare m M {} U u 5200000.0 X x -23 Y y mad Z z}
+do_test selectA-2.80 {
+  execsql {
+    SELECT a,b,c FROM t3 UNION SELECT x,y,z FROM t2
+    ORDER BY c DESC,a,b
+  }
+} {mad Z z -23 Y y 5200000.0 X x {} U u hare m M abc e e hello d D {} C c 9.9 b B 1 a a}
+do_test selectA-2.81 {
+  execsql {
+    SELECT a,b,c FROM t3 UNION SELECT x,y,z FROM t2
+    ORDER BY c COLLATE BINARY DESC,a,b
+  }
+} {mad Z z -23 Y y 5200000.0 X x {} U u abc e e {} C c 1 a a hare m M hello d D 9.9 b B}
+do_test selectA-2.82 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION SELECT a,b,c FROM t3
+    ORDER BY a,b,c
+  }
+} {{} C c {} U u -23 Y y 1 a a 9.9 b B 5200000.0 X x hello d D mad Z z abc e e hare m M}
+do_test selectA-2.83 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION SELECT a,b,c FROM t3
+    ORDER BY a DESC,b,c
+  }
+} {hare m M abc e e mad Z z hello d D 5200000.0 X x 9.9 b B 1 a a -23 Y y {} C c {} U u}
+do_test selectA-2.84 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION SELECT a,b,c FROM t3
+    ORDER BY a,c,b
+  }
+} {{} C c {} U u -23 Y y 1 a a 9.9 b B 5200000.0 X x hello d D mad Z z abc e e hare m M}
+do_test selectA-2.85 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION SELECT a,b,c FROM t3
+    ORDER BY b,a,c
+  }
+} {{} C c {} U u 5200000.0 X x -23 Y y mad Z z 1 a a 9.9 b B hello d D abc e e hare m M}
+do_test selectA-2.86 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION SELECT a,b,c FROM t3
+    ORDER BY y COLLATE NOCASE,x,z
+  }
+} {1 a a 9.9 b B {} C c hello d D abc e e hare m M {} U u 5200000.0 X x -23 Y y mad Z z}
+do_test selectA-2.87 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION SELECT a,b,c FROM t3
+    ORDER BY y COLLATE NOCASE DESC,x,z
+  }
+} {mad Z z -23 Y y 5200000.0 X x {} U u hare m M abc e e hello d D {} C c 9.9 b B 1 a a}
+do_test selectA-2.88 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION SELECT a,b,c FROM t3
+    ORDER BY c,b,a
+  }
+} {1 a a 9.9 b B {} C c hello d D abc e e hare m M {} U u 5200000.0 X x -23 Y y mad Z z}
+do_test selectA-2.89 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION SELECT a,b,c FROM t3
+    ORDER BY c,a,b
+  }
+} {1 a a 9.9 b B {} C c hello d D abc e e hare m M {} U u 5200000.0 X x -23 Y y mad Z z}
+do_test selectA-2.90 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION SELECT a,b,c FROM t3
+    ORDER BY c DESC,a,b
+  }
+} {mad Z z -23 Y y 5200000.0 X x {} U u hare m M abc e e hello d D {} C c 9.9 b B 1 a a}
+do_test selectA-2.91 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION SELECT a,b,c FROM t3
+    ORDER BY z COLLATE BINARY DESC,x,y
+  }
+} {mad Z z -23 Y y 5200000.0 X x {} U u abc e e {} C c 1 a a hare m M hello d D 9.9 b B}
+do_test selectA-2.92 {
+  execsql {
+    SELECT x,y,z FROM t2
+    INTERSECT SELECT a,b,c FROM t3
+    EXCEPT SELECT c,b,a FROM t1
+    UNION SELECT a,b,c FROM t3
+    INTERSECT SELECT a,b,c FROM t3
+    EXCEPT SELECT c,b,a FROM t1
+    UNION SELECT a,b,c FROM t3
+    ORDER BY y COLLATE NOCASE DESC,x,z
+  }
+} {mad Z z -23 Y y 5200000.0 X x {} U u hare m M abc e e hello d D {} C c 9.9 b B 1 a a}
+do_test selectA-2.93 {
+  execsql {
+    SELECT upper((SELECT c FROM t1 UNION SELECT z FROM t2 ORDER BY 1));
+  }
+} {A}
+do_test selectA-2.94 {
+  execsql {
+    SELECT lower((SELECT c FROM t1 UNION ALL SELECT z FROM t2 ORDER BY 1));
+  }
+} {a}
+do_test selectA-2.95 {
+  execsql {
+    SELECT lower((SELECT c FROM t1 INTERSECT SELECT z FROM t2 ORDER BY 1));
+  }
+} {{}}
+do_test selectA-2.96 {
+  execsql {
+    SELECT lower((SELECT z FROM t2 EXCEPT SELECT c FROM t1 ORDER BY 1));
+  }
+} {m}
+
+
+do_test selectA-3.0 {
+  execsql {
+    CREATE UNIQUE INDEX t1a ON t1(a);
+    CREATE UNIQUE INDEX t1b ON t1(b);
+    CREATE UNIQUE INDEX t1c ON t1(c);
+    CREATE UNIQUE INDEX t2x ON t2(x);
+    CREATE UNIQUE INDEX t2y ON t2(y);
+    CREATE UNIQUE INDEX t2z ON t2(z);
+    SELECT name FROM sqlite_master WHERE type='index'
+  }
+} {t1a t1b t1c t2x t2y t2z}
+do_test selectA-3.1 {
+  execsql {
+    SELECT a,b,c FROM t1 UNION ALL SELECT x,y,z FROM t2
+    ORDER BY a,b,c
+  }
+} {{} C c {} U u -23 Y y 1 a a 9.9 b B 5200000.0 X x hello d D mad Z z abc e e hare m M}
+do_test selectA-3.1.1 {  # Ticket #3314
+  execsql {
+    SELECT t1.a,b,t1.c FROM t1 UNION ALL SELECT x,y,z FROM t2
+    ORDER BY a,t1.b,t1.c
+  }
+} {{} C c {} U u -23 Y y 1 a a 9.9 b B 5200000.0 X x hello d D mad Z z abc e e hare m M}
+do_test selectA-3.2 {
+  execsql {
+    SELECT a,b,c FROM t1 UNION ALL SELECT x,y,z FROM t2
+    ORDER BY a DESC,b,c
+  }
+} {hare m M abc e e mad Z z hello d D 5200000.0 X x 9.9 b B 1 a a -23 Y y {} C c {} U u}
+do_test selectA-3.3 {
+  execsql {
+    SELECT a,b,c FROM t1 UNION ALL SELECT x,y,z FROM t2
+    ORDER BY a,c,b
+  }
+} {{} C c {} U u -23 Y y 1 a a 9.9 b B 5200000.0 X x hello d D mad Z z abc e e hare m M}
+do_test selectA-3.4 {
+  execsql {
+    SELECT a,b,c FROM t1 UNION ALL SELECT x,y,z FROM t2
+    ORDER BY b,a,c
+  }
+} {{} C c {} U u 5200000.0 X x -23 Y y mad Z z 1 a a 9.9 b B hello d D abc e e hare m M}
+do_test selectA-3.5 {
+  execsql {
+    SELECT a,b,c FROM t1 UNION ALL SELECT x,y,z FROM t2
+    ORDER BY b COLLATE NOCASE,a,c
+  }
+} {1 a a 9.9 b B {} C c hello d D abc e e hare m M {} U u 5200000.0 X x -23 Y y mad Z z}
+do_test selectA-3.6 {
+  execsql {
+    SELECT a,b,c FROM t1 UNION ALL SELECT x,y,z FROM t2
+    ORDER BY b COLLATE NOCASE DESC,a,c
+  }
+} {mad Z z -23 Y y 5200000.0 X x {} U u hare m M abc e e hello d D {} C c 9.9 b B 1 a a}
+do_test selectA-3.7 {
+  execsql {
+    SELECT a,b,c FROM t1 UNION ALL SELECT x,y,z FROM t2
+    ORDER BY c,b,a
+  }
+} {1 a a 9.9 b B {} C c hello d D abc e e hare m M {} U u 5200000.0 X x -23 Y y mad Z z}
+do_test selectA-3.8 {
+  execsql {
+    SELECT a,b,c FROM t1 UNION ALL SELECT x,y,z FROM t2
+    ORDER BY c,a,b
+  }
+} {1 a a 9.9 b B {} C c hello d D abc e e hare m M {} U u 5200000.0 X x -23 Y y mad Z z}
+do_test selectA-3.9 {
+  execsql {
+    SELECT a,b,c FROM t1 UNION ALL SELECT x,y,z FROM t2
+    ORDER BY c DESC,a,b
+  }
+} {mad Z z -23 Y y 5200000.0 X x {} U u hare m M abc e e hello d D {} C c 9.9 b B 1 a a}
+do_test selectA-3.10 {
+  execsql {
+    SELECT a,b,c FROM t1 UNION ALL SELECT x,y,z FROM t2
+    ORDER BY c COLLATE BINARY DESC,a,b
+  }
+} {mad Z z -23 Y y 5200000.0 X x {} U u abc e e {} C c 1 a a hare m M hello d D 9.9 b B}
+do_test selectA-3.11 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION ALL SELECT a,b,c FROM t1
+    ORDER BY a,b,c
+  }
+} {{} C c {} U u -23 Y y 1 a a 9.9 b B 5200000.0 X x hello d D mad Z z abc e e hare m M}
+do_test selectA-3.12 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION ALL SELECT a,b,c FROM t1
+    ORDER BY a DESC,b,c
+  }
+} {hare m M abc e e mad Z z hello d D 5200000.0 X x 9.9 b B 1 a a -23 Y y {} C c {} U u}
+do_test selectA-3.13 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION ALL SELECT a,b,c FROM t1
+    ORDER BY a,c,b
+  }
+} {{} C c {} U u -23 Y y 1 a a 9.9 b B 5200000.0 X x hello d D mad Z z abc e e hare m M}
+do_test selectA-3.14 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION ALL SELECT a,b,c FROM t1
+    ORDER BY b,a,c
+  }
+} {{} C c {} U u 5200000.0 X x -23 Y y mad Z z 1 a a 9.9 b B hello d D abc e e hare m M}
+do_test selectA-3.15 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION ALL SELECT a,b,c FROM t1
+    ORDER BY b COLLATE NOCASE,a,c
+  }
+} {1 a a 9.9 b B {} C c hello d D abc e e hare m M {} U u 5200000.0 X x -23 Y y mad Z z}
+do_test selectA-3.16 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION ALL SELECT a,b,c FROM t1
+    ORDER BY b COLLATE NOCASE DESC,a,c
+  }
+} {mad Z z -23 Y y 5200000.0 X x {} U u hare m M abc e e hello d D {} C c 9.9 b B 1 a a}
+do_test selectA-3.17 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION ALL SELECT a,b,c FROM t1
+    ORDER BY c,b,a
+  }
+} {1 a a 9.9 b B {} C c hello d D abc e e hare m M {} U u 5200000.0 X x -23 Y y mad Z z}
+do_test selectA-3.18 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION ALL SELECT a,b,c FROM t1
+    ORDER BY c,a,b
+  }
+} {1 a a 9.9 b B {} C c hello d D abc e e hare m M {} U u 5200000.0 X x -23 Y y mad Z z}
+do_test selectA-3.19 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION ALL SELECT a,b,c FROM t1
+    ORDER BY c DESC,a,b
+  }
+} {mad Z z -23 Y y 5200000.0 X x {} U u hare m M abc e e hello d D {} C c 9.9 b B 1 a a}
+do_test selectA-3.20 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION ALL SELECT a,b,c FROM t1
+    ORDER BY c COLLATE BINARY DESC,a,b
+  }
+} {mad Z z -23 Y y 5200000.0 X x {} U u abc e e {} C c 1 a a hare m M hello d D 9.9 b B}
+do_test selectA-3.21 {
+  execsql {
+    SELECT a,b,c FROM t1 UNION SELECT x,y,z FROM t2
+    ORDER BY a,b,c
+  }
+} {{} C c {} U u -23 Y y 1 a a 9.9 b B 5200000.0 X x hello d D mad Z z abc e e hare m M}
+do_test selectA-3.22 {
+  execsql {
+    SELECT a,b,c FROM t1 UNION SELECT x,y,z FROM t2
+    ORDER BY a DESC,b,c
+  }
+} {hare m M abc e e mad Z z hello d D 5200000.0 X x 9.9 b B 1 a a -23 Y y {} C c {} U u}
+do_test selectA-3.23 {
+  execsql {
+    SELECT a,b,c FROM t1 UNION SELECT x,y,z FROM t2
+    ORDER BY a,c,b
+  }
+} {{} C c {} U u -23 Y y 1 a a 9.9 b B 5200000.0 X x hello d D mad Z z abc e e hare m M}
+do_test selectA-3.24 {
+  execsql {
+    SELECT a,b,c FROM t1 UNION SELECT x,y,z FROM t2
+    ORDER BY b,a,c
+  }
+} {{} C c {} U u 5200000.0 X x -23 Y y mad Z z 1 a a 9.9 b B hello d D abc e e hare m M}
+do_test selectA-3.25 {
+  execsql {
+    SELECT a,b,c FROM t1 UNION SELECT x,y,z FROM t2
+    ORDER BY b COLLATE NOCASE,a,c
+  }
+} {1 a a 9.9 b B {} C c hello d D abc e e hare m M {} U u 5200000.0 X x -23 Y y mad Z z}
+do_test selectA-3.26 {
+  execsql {
+    SELECT a,b,c FROM t1 UNION SELECT x,y,z FROM t2
+    ORDER BY b COLLATE NOCASE DESC,a,c
+  }
+} {mad Z z -23 Y y 5200000.0 X x {} U u hare m M abc e e hello d D {} C c 9.9 b B 1 a a}
+do_test selectA-3.27 {
+  execsql {
+    SELECT a,b,c FROM t1 UNION SELECT x,y,z FROM t2
+    ORDER BY c,b,a
+  }
+} {1 a a 9.9 b B {} C c hello d D abc e e hare m M {} U u 5200000.0 X x -23 Y y mad Z z}
+do_test selectA-3.28 {
+  execsql {
+    SELECT a,b,c FROM t1 UNION SELECT x,y,z FROM t2
+    ORDER BY c,a,b
+  }
+} {1 a a 9.9 b B {} C c hello d D abc e e hare m M {} U u 5200000.0 X x -23 Y y mad Z z}
+do_test selectA-3.29 {
+  execsql {
+    SELECT a,b,c FROM t1 UNION SELECT x,y,z FROM t2
+    ORDER BY c DESC,a,b
+  }
+} {mad Z z -23 Y y 5200000.0 X x {} U u hare m M abc e e hello d D {} C c 9.9 b B 1 a a}
+do_test selectA-3.30 {
+  execsql {
+    SELECT a,b,c FROM t1 UNION SELECT x,y,z FROM t2
+    ORDER BY c COLLATE BINARY DESC,a,b
+  }
+} {mad Z z -23 Y y 5200000.0 X x {} U u abc e e {} C c 1 a a hare m M hello d D 9.9 b B}
+do_test selectA-3.31 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION SELECT a,b,c FROM t1
+    ORDER BY a,b,c
+  }
+} {{} C c {} U u -23 Y y 1 a a 9.9 b B 5200000.0 X x hello d D mad Z z abc e e hare m M}
+do_test selectA-3.32 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION SELECT a,b,c FROM t1
+    ORDER BY a DESC,b,c
+  }
+} {hare m M abc e e mad Z z hello d D 5200000.0 X x 9.9 b B 1 a a -23 Y y {} C c {} U u}
+do_test selectA-3.33 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION SELECT a,b,c FROM t1
+    ORDER BY a,c,b
+  }
+} {{} C c {} U u -23 Y y 1 a a 9.9 b B 5200000.0 X x hello d D mad Z z abc e e hare m M}
+do_test selectA-3.34 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION SELECT a,b,c FROM t1
+    ORDER BY b,a,c
+  }
+} {{} C c {} U u 5200000.0 X x -23 Y y mad Z z 1 a a 9.9 b B hello d D abc e e hare m M}
+do_test selectA-3.35 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION SELECT a,b,c FROM t1
+    ORDER BY y COLLATE NOCASE,x,z
+  }
+} {1 a a 9.9 b B {} C c hello d D abc e e hare m M {} U u 5200000.0 X x -23 Y y mad Z z}
+do_test selectA-3.36 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION SELECT a,b,c FROM t1
+    ORDER BY y COLLATE NOCASE DESC,x,z
+  }
+} {mad Z z -23 Y y 5200000.0 X x {} U u hare m M abc e e hello d D {} C c 9.9 b B 1 a a}
+do_test selectA-3.37 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION SELECT a,b,c FROM t1
+    ORDER BY c,b,a
+  }
+} {1 a a 9.9 b B {} C c hello d D abc e e hare m M {} U u 5200000.0 X x -23 Y y mad Z z}
+do_test selectA-3.38 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION SELECT a,b,c FROM t1
+    ORDER BY c,a,b
+  }
+} {1 a a 9.9 b B {} C c hello d D abc e e hare m M {} U u 5200000.0 X x -23 Y y mad Z z}
+do_test selectA-3.39 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION SELECT a,b,c FROM t1
+    ORDER BY c DESC,a,b
+  }
+} {mad Z z -23 Y y 5200000.0 X x {} U u hare m M abc e e hello d D {} C c 9.9 b B 1 a a}
+do_test selectA-3.40 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION SELECT a,b,c FROM t1
+    ORDER BY z COLLATE BINARY DESC,x,y
+  }
+} {mad Z z -23 Y y 5200000.0 X x {} U u abc e e {} C c 1 a a hare m M hello d D 9.9 b B}
+do_test selectA-3.41 {
+  execsql {
+    SELECT a,b,c FROM t1 EXCEPT SELECT a,b,c FROM t1 WHERE b>='d'
+    ORDER BY a,b,c
+  }
+} {{} C c 1 a a 9.9 b B}
+do_test selectA-3.42 {
+  execsql {
+    SELECT a,b,c FROM t1 INTERSECT SELECT a,b,c FROM t1 WHERE b>='d'
+    ORDER BY a,b,c
+  }
+} {hello d D abc e e}
+do_test selectA-3.43 {
+  execsql {
+    SELECT a,b,c FROM t1 WHERE b>='d' INTERSECT SELECT a,b,c FROM t1
+    ORDER BY a,b,c
+  }
+} {hello d D abc e e}
+do_test selectA-3.44 {
+  execsql {
+    SELECT a,b,c FROM t1 EXCEPT SELECT a,b,c FROM t1 WHERE b<'d'
+    ORDER BY a,b,c
+  }
+} {hello d D abc e e}
+do_test selectA-3.45 {
+  execsql {
+    SELECT a,b,c FROM t1 INTERSECT SELECT a,b,c FROM t1 WHERE b<'d'
+    ORDER BY a,b,c
+  }
+} {{} C c 1 a a 9.9 b B}
+do_test selectA-3.46 {
+  execsql {
+    SELECT a,b,c FROM t1 WHERE b<'d' INTERSECT SELECT a,b,c FROM t1
+    ORDER BY a,b,c
+  }
+} {{} C c 1 a a 9.9 b B}
+do_test selectA-3.47 {
+  execsql {
+    SELECT a,b,c FROM t1 EXCEPT SELECT a,b,c FROM t1 WHERE b>='d'
+    ORDER BY a DESC
+  }
+} {9.9 b B 1 a a {} C c}
+do_test selectA-3.48 {
+  execsql {
+    SELECT a,b,c FROM t1 INTERSECT SELECT a,b,c FROM t1 WHERE b>='d'
+    ORDER BY a DESC
+  }
+} {abc e e hello d D}
+do_test selectA-3.49 {
+  execsql {
+    SELECT a,b,c FROM t1 WHERE b>='d' INTERSECT SELECT a,b,c FROM t1
+    ORDER BY a DESC
+  }
+} {abc e e hello d D}
+do_test selectA-3.50 {
+  execsql {
+    SELECT a,b,c FROM t1 EXCEPT SELECT a,b,c FROM t1 WHERE b<'d'
+    ORDER BY a DESC
+  }
+} {abc e e hello d D}
+do_test selectA-3.51 {
+  execsql {
+    SELECT a,b,c FROM t1 INTERSECT SELECT a,b,c FROM t1 WHERE b<'d'
+    ORDER BY a DESC
+  }
+} {9.9 b B 1 a a {} C c}
+do_test selectA-3.52 {
+  execsql {
+    SELECT a,b,c FROM t1 WHERE b<'d' INTERSECT SELECT a,b,c FROM t1
+    ORDER BY a DESC
+  }
+} {9.9 b B 1 a a {} C c}
+do_test selectA-3.53 {
+  execsql {
+    SELECT a,b,c FROM t1 EXCEPT SELECT a,b,c FROM t1 WHERE b>='d'
+    ORDER BY b, a DESC
+  }
+} {{} C c 1 a a 9.9 b B}
+do_test selectA-3.54 {
+  execsql {
+    SELECT a,b,c FROM t1 INTERSECT SELECT a,b,c FROM t1 WHERE b>='d'
+    ORDER BY b
+  }
+} {hello d D abc e e}
+do_test selectA-3.55 {
+  execsql {
+    SELECT a,b,c FROM t1 WHERE b>='d' INTERSECT SELECT a,b,c FROM t1
+    ORDER BY b DESC, c
+  }
+} {abc e e hello d D}
+do_test selectA-3.56 {
+  execsql {
+    SELECT a,b,c FROM t1 EXCEPT SELECT a,b,c FROM t1 WHERE b<'d'
+    ORDER BY b, c DESC, a
+  }
+} {hello d D abc e e}
+do_test selectA-3.57 {
+  execsql {
+    SELECT a,b,c FROM t1 INTERSECT SELECT a,b,c FROM t1 WHERE b<'d'
+    ORDER BY b COLLATE NOCASE
+  }
+} {1 a a 9.9 b B {} C c}
+do_test selectA-3.58 {
+  execsql {
+    SELECT a,b,c FROM t1 WHERE b<'d' INTERSECT SELECT a,b,c FROM t1
+    ORDER BY b
+  }
+} {{} C c 1 a a 9.9 b B}
+do_test selectA-3.59 {
+  execsql {
+    SELECT a,b,c FROM t1 EXCEPT SELECT a,b,c FROM t1 WHERE b>='d'
+    ORDER BY c, a DESC
+  }
+} {1 a a 9.9 b B {} C c}
+do_test selectA-3.60 {
+  execsql {
+    SELECT a,b,c FROM t1 INTERSECT SELECT a,b,c FROM t1 WHERE b>='d'
+    ORDER BY c
+  }
+} {hello d D abc e e}
+do_test selectA-3.61 {
+  execsql {
+    SELECT a,b,c FROM t1 WHERE b>='d' INTERSECT SELECT a,b,c FROM t1
+    ORDER BY c COLLATE BINARY, b DESC, c, a, b, c, a, b, c
+  }
+} {hello d D abc e e}
+do_test selectA-3.62 {
+  execsql {
+    SELECT a,b,c FROM t1 EXCEPT SELECT a,b,c FROM t1 WHERE b<'d'
+    ORDER BY c DESC, a
+  }
+} {abc e e hello d D}
+do_test selectA-3.63 {
+  execsql {
+    SELECT a,b,c FROM t1 INTERSECT SELECT a,b,c FROM t1 WHERE b<'d'
+    ORDER BY c COLLATE NOCASE
+  }
+} {1 a a 9.9 b B {} C c}
+do_test selectA-3.64 {
+  execsql {
+    SELECT a,b,c FROM t1 WHERE b<'d' INTERSECT SELECT a,b,c FROM t1
+    ORDER BY c
+  }
+} {1 a a 9.9 b B {} C c}
+do_test selectA-3.65 {
+  execsql {
+    SELECT a,b,c FROM t3 INTERSECT SELECT a,b,c FROM t1 WHERE b<'d'
+    ORDER BY c COLLATE NOCASE
+  }
+} {1 a a 9.9 b B {} C c}
+do_test selectA-3.66 {
+  execsql {
+    SELECT a,b,c FROM t1 WHERE b<'d' INTERSECT SELECT a,b,c FROM t3
+    ORDER BY c
+  }
+} {1 a a 9.9 b B {} C c}
+do_test selectA-3.67 {
+  execsql {
+    SELECT a,b,c FROM t1 EXCEPT SELECT a,b,c FROM t3 WHERE b<'d'
+    ORDER BY c DESC, a
+  }
+} {abc e e hello d D}
+do_test selectA-3.68 {
+  execsql {
+    SELECT a,b,c FROM t1 EXCEPT SELECT a,b,c FROM t1 WHERE b<'d'
+    INTERSECT SELECT a,b,c FROM t3
+    EXCEPT SELECT b,c,a FROM t3
+    ORDER BY c DESC, a
+  }
+} {abc e e hello d D}
+do_test selectA-3.69 {
+  execsql {
+    SELECT a,b,c FROM t1 INTERSECT SELECT a,b,c FROM t1 WHERE b<'d'
+    INTERSECT SELECT a,b,c FROM t3
+    EXCEPT SELECT b,c,a FROM t3
+    ORDER BY c COLLATE NOCASE
+  }
+} {1 a a 9.9 b B {} C c}
+do_test selectA-3.70 {
+  execsql {
+    SELECT a,b,c FROM t1 WHERE b<'d' INTERSECT SELECT a,b,c FROM t1
+    INTERSECT SELECT a,b,c FROM t3
+    EXCEPT SELECT b,c,a FROM t3
+    ORDER BY c
+  }
+} {1 a a 9.9 b B {} C c}
+do_test selectA-3.71 {
+  execsql {
+    SELECT a,b,c FROM t1 WHERE b<'d'
+    INTERSECT SELECT a,b,c FROM t1
+    INTERSECT SELECT a,b,c FROM t3
+    EXCEPT SELECT b,c,a FROM t3
+    INTERSECT SELECT a,b,c FROM t1
+    EXCEPT SELECT x,y,z FROM t2
+    INTERSECT SELECT a,b,c FROM t3
+    EXCEPT SELECT y,x,z FROM t2
+    INTERSECT SELECT a,b,c FROM t1
+    EXCEPT SELECT c,b,a FROM t3
+    ORDER BY c
+  }
+} {1 a a 9.9 b B {} C c}
+do_test selectA-3.72 {
+  execsql {
+    SELECT a,b,c FROM t3 UNION SELECT x,y,z FROM t2
+    ORDER BY a,b,c
+  }
+} {{} C c {} U u -23 Y y 1 a a 9.9 b B 5200000.0 X x hello d D mad Z z abc e e hare m M}
+do_test selectA-3.73 {
+  execsql {
+    SELECT a,b,c FROM t3 UNION SELECT x,y,z FROM t2
+    ORDER BY a DESC,b,c
+  }
+} {hare m M abc e e mad Z z hello d D 5200000.0 X x 9.9 b B 1 a a -23 Y y {} C c {} U u}
+do_test selectA-3.74 {
+  execsql {
+    SELECT a,b,c FROM t3 UNION SELECT x,y,z FROM t2
+    ORDER BY a,c,b
+  }
+} {{} C c {} U u -23 Y y 1 a a 9.9 b B 5200000.0 X x hello d D mad Z z abc e e hare m M}
+do_test selectA-3.75 {
+  execsql {
+    SELECT a,b,c FROM t3 UNION SELECT x,y,z FROM t2
+    ORDER BY b,a,c
+  }
+} {{} C c {} U u 5200000.0 X x -23 Y y mad Z z 1 a a 9.9 b B hello d D abc e e hare m M}
+do_test selectA-3.76 {
+  execsql {
+    SELECT a,b,c FROM t3 UNION SELECT x,y,z FROM t2
+    ORDER BY b COLLATE NOCASE,a,c
+  }
+} {1 a a 9.9 b B {} C c hello d D abc e e hare m M {} U u 5200000.0 X x -23 Y y mad Z z}
+do_test selectA-3.77 {
+  execsql {
+    SELECT a,b,c FROM t3 UNION SELECT x,y,z FROM t2
+    ORDER BY b COLLATE NOCASE DESC,a,c
+  }
+} {mad Z z -23 Y y 5200000.0 X x {} U u hare m M abc e e hello d D {} C c 9.9 b B 1 a a}
+do_test selectA-3.78 {
+  execsql {
+    SELECT a,b,c FROM t3 UNION SELECT x,y,z FROM t2
+    ORDER BY c,b,a
+  }
+} {1 a a 9.9 b B {} C c hello d D abc e e hare m M {} U u 5200000.0 X x -23 Y y mad Z z}
+do_test selectA-3.79 {
+  execsql {
+    SELECT a,b,c FROM t3 UNION SELECT x,y,z FROM t2
+    ORDER BY c,a,b
+  }
+} {1 a a 9.9 b B {} C c hello d D abc e e hare m M {} U u 5200000.0 X x -23 Y y mad Z z}
+do_test selectA-3.80 {
+  execsql {
+    SELECT a,b,c FROM t3 UNION SELECT x,y,z FROM t2
+    ORDER BY c DESC,a,b
+  }
+} {mad Z z -23 Y y 5200000.0 X x {} U u hare m M abc e e hello d D {} C c 9.9 b B 1 a a}
+do_test selectA-3.81 {
+  execsql {
+    SELECT a,b,c FROM t3 UNION SELECT x,y,z FROM t2
+    ORDER BY c COLLATE BINARY DESC,a,b
+  }
+} {mad Z z -23 Y y 5200000.0 X x {} U u abc e e {} C c 1 a a hare m M hello d D 9.9 b B}
+do_test selectA-3.82 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION SELECT a,b,c FROM t3
+    ORDER BY a,b,c
+  }
+} {{} C c {} U u -23 Y y 1 a a 9.9 b B 5200000.0 X x hello d D mad Z z abc e e hare m M}
+do_test selectA-3.83 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION SELECT a,b,c FROM t3
+    ORDER BY a DESC,b,c
+  }
+} {hare m M abc e e mad Z z hello d D 5200000.0 X x 9.9 b B 1 a a -23 Y y {} C c {} U u}
+do_test selectA-3.84 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION SELECT a,b,c FROM t3
+    ORDER BY a,c,b
+  }
+} {{} C c {} U u -23 Y y 1 a a 9.9 b B 5200000.0 X x hello d D mad Z z abc e e hare m M}
+do_test selectA-3.85 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION SELECT a,b,c FROM t3
+    ORDER BY b,a,c
+  }
+} {{} C c {} U u 5200000.0 X x -23 Y y mad Z z 1 a a 9.9 b B hello d D abc e e hare m M}
+do_test selectA-3.86 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION SELECT a,b,c FROM t3
+    ORDER BY y COLLATE NOCASE,x,z
+  }
+} {1 a a 9.9 b B {} C c hello d D abc e e hare m M {} U u 5200000.0 X x -23 Y y mad Z z}
+do_test selectA-3.87 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION SELECT a,b,c FROM t3
+    ORDER BY y COLLATE NOCASE DESC,x,z
+  }
+} {mad Z z -23 Y y 5200000.0 X x {} U u hare m M abc e e hello d D {} C c 9.9 b B 1 a a}
+do_test selectA-3.88 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION SELECT a,b,c FROM t3
+    ORDER BY c,b,a
+  }
+} {1 a a 9.9 b B {} C c hello d D abc e e hare m M {} U u 5200000.0 X x -23 Y y mad Z z}
+do_test selectA-3.89 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION SELECT a,b,c FROM t3
+    ORDER BY c,a,b
+  }
+} {1 a a 9.9 b B {} C c hello d D abc e e hare m M {} U u 5200000.0 X x -23 Y y mad Z z}
+do_test selectA-3.90 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION SELECT a,b,c FROM t3
+    ORDER BY c DESC,a,b
+  }
+} {mad Z z -23 Y y 5200000.0 X x {} U u hare m M abc e e hello d D {} C c 9.9 b B 1 a a}
+do_test selectA-3.91 {
+  execsql {
+    SELECT x,y,z FROM t2 UNION SELECT a,b,c FROM t3
+    ORDER BY z COLLATE BINARY DESC,x,y
+  }
+} {mad Z z -23 Y y 5200000.0 X x {} U u abc e e {} C c 1 a a hare m M hello d D 9.9 b B}
+do_test selectA-3.92 {
+  execsql {
+    SELECT x,y,z FROM t2
+    INTERSECT SELECT a,b,c FROM t3
+    EXCEPT SELECT c,b,a FROM t1
+    UNION SELECT a,b,c FROM t3
+    INTERSECT SELECT a,b,c FROM t3
+    EXCEPT SELECT c,b,a FROM t1
+    UNION SELECT a,b,c FROM t3
+    ORDER BY y COLLATE NOCASE DESC,x,z
+  }
+} {mad Z z -23 Y y 5200000.0 X x {} U u hare m M abc e e hello d D {} C c 9.9 b B 1 a a}
+do_test selectA-3.93 {
+  execsql {
+    SELECT upper((SELECT c FROM t1 UNION SELECT z FROM t2 ORDER BY 1));
+  }
+} {A}
+do_test selectA-3.94 {
+  execsql {
+    SELECT lower((SELECT c FROM t1 UNION ALL SELECT z FROM t2 ORDER BY 1));
+  }
+} {a}
+do_test selectA-3.95 {
+  execsql {
+    SELECT lower((SELECT c FROM t1 INTERSECT SELECT z FROM t2 ORDER BY 1));
+  }
+} {{}}
+do_test selectA-3.96 {
+  execsql {
+    SELECT lower((SELECT z FROM t2 EXCEPT SELECT c FROM t1 ORDER BY 1));
+  }
+} {m}
+do_test selectA-3.97 {
+  execsql {
+    SELECT upper((SELECT x FROM (
+      SELECT x,y,z FROM t2
+      INTERSECT SELECT a,b,c FROM t3
+      EXCEPT SELECT c,b,a FROM t1
+      UNION SELECT a,b,c FROM t3
+      INTERSECT SELECT a,b,c FROM t3
+      EXCEPT SELECT c,b,a FROM t1
+      UNION SELECT a,b,c FROM t3
+      ORDER BY y COLLATE NOCASE DESC,x,z)))
+  }
+} {MAD}
+do_execsql_test selectA-3.98 {
+  WITH RECURSIVE
+    xyz(n) AS (
+      SELECT upper((SELECT x FROM (
+        SELECT x,y,z FROM t2
+        INTERSECT SELECT a,b,c FROM t3
+        EXCEPT SELECT c,b,a FROM t1
+        UNION SELECT a,b,c FROM t3
+        INTERSECT SELECT a,b,c FROM t3
+        EXCEPT SELECT c,b,a FROM t1
+        UNION SELECT a,b,c FROM t3
+        ORDER BY y COLLATE NOCASE DESC,x,z)))
+      UNION ALL
+      SELECT n || '+' FROM xyz WHERE length(n)<5
+    )
+  SELECT n FROM xyz ORDER BY +n;
+} {MAD MAD+ MAD++}
+
+#-------------------------------------------------------------------------
+# At one point the following code exposed a temp register reuse problem.
+#
+proc f {args} { return 1 }
+db func f f
+
+do_execsql_test 4.1.1 {
+  CREATE TABLE t4(a, b);
+  CREATE TABLE t5(c, d);
+
+  INSERT INTO t5 VALUES(1, 'x');
+  INSERT INTO t5 VALUES(2, 'x');
+  INSERT INTO t4 VALUES(3, 'x');
+  INSERT INTO t4 VALUES(4, 'x');
+
+  CREATE INDEX i1 ON t4(a);
+  CREATE INDEX i2 ON t5(c);
+}
+
+do_eqp_test 4.1.2 {
+  SELECT c, d FROM t5 
+  UNION ALL
+  SELECT a, b FROM t4 WHERE f()==f()
+  ORDER BY 1,2
+} {
+  QUERY PLAN
+  `--MERGE (UNION ALL)
+     |--LEFT
+     |  |--SCAN t5 USING INDEX i2
+     |  `--USE TEMP B-TREE FOR LAST TERM OF ORDER BY
+     `--RIGHT
+        |--SCAN t4 USING INDEX i1
+        `--USE TEMP B-TREE FOR LAST TERM OF ORDER BY
+}
+
+do_execsql_test 4.1.3 {
+  SELECT c, d FROM t5 
+  UNION ALL
+  SELECT a, b FROM t4 WHERE f()==f()
+  ORDER BY 1,2
+} {
+  1 x 2 x 3 x 4 x
+}
+
+do_execsql_test 4.2.1 {
+  CREATE TABLE t6(a, b);
+  CREATE TABLE t7(c, d);
+
+  INSERT INTO t7 VALUES(2, 9);
+  INSERT INTO t6 VALUES(3, 0);
+  INSERT INTO t6 VALUES(4, 1);
+  INSERT INTO t7 VALUES(5, 6);
+  INSERT INTO t6 VALUES(6, 0);
+  INSERT INTO t7 VALUES(7, 6);
+
+  CREATE INDEX i6 ON t6(a);
+  CREATE INDEX i7 ON t7(c);
+}
+
+do_execsql_test 4.2.2 {
+  SELECT c, f(d,c,d,c,d) FROM t7
+  UNION ALL
+  SELECT a, b FROM t6 
+  ORDER BY 1,2
+} {/2 . 3 . 4 . 5 . 6 . 7 ./}
+
+
+proc strip_rnd {explain} {
+  regexp -all {sqlite_sq_[0123456789ABCDEF]*} $explain sqlite_sq
+}
+
+proc do_same_test {tn q1 args} {
+  set r2 [strip_rnd [db eval "EXPLAIN $q1"]]
+  set i 1
+  foreach q $args {
+    set tst [subst -nocommands {strip_rnd [db eval "EXPLAIN $q"]}]
+    uplevel do_test $tn.$i [list $tst] [list $r2]
+    incr i
+  }
+}
+
+do_execsql_test 5.0 {
+  CREATE TABLE t8(a, b);
+  CREATE TABLE t9(c, d);
+} {}
+
+do_same_test 5.1 {
+  SELECT a, b FROM t8 INTERSECT SELECT c, d FROM t9 ORDER BY a;
+} {
+  SELECT a, b FROM t8 INTERSECT SELECT c, d FROM t9 ORDER BY t8.a;
+} {
+  SELECT a, b FROM t8 INTERSECT SELECT c, d FROM t9 ORDER BY 1;
+} {
+  SELECT a, b FROM t8 INTERSECT SELECT c, d FROM t9 ORDER BY c;
+} {
+  SELECT a, b FROM t8 INTERSECT SELECT c, d FROM t9 ORDER BY t9.c;
+}
+
+do_same_test 5.2 {
+  SELECT a, b FROM t8 UNION SELECT c, d FROM t9 ORDER BY a COLLATE NOCASE
+} {
+  SELECT a, b FROM t8 UNION SELECT c, d FROM t9 ORDER BY t8.a COLLATE NOCASE
+} {
+  SELECT a, b FROM t8 UNION SELECT c, d FROM t9 ORDER BY 1 COLLATE NOCASE
+} {
+  SELECT a, b FROM t8 UNION SELECT c, d FROM t9 ORDER BY c COLLATE NOCASE
+} {
+  SELECT a, b FROM t8 UNION SELECT c, d FROM t9 ORDER BY t9.c COLLATE NOCASE
+}
+
+do_same_test 5.3 {
+  SELECT a, b FROM t8 EXCEPT SELECT c, d FROM t9 ORDER BY b, c COLLATE NOCASE
+} {
+  SELECT a, b FROM t8 EXCEPT SELECT c, d FROM t9 ORDER BY 2, 1 COLLATE NOCASE
+} {
+  SELECT a, b FROM t8 EXCEPT SELECT c, d FROM t9 ORDER BY d, a COLLATE NOCASE
+} {
+  SELECT a, b FROM t8 EXCEPT SELECT * FROM t9 ORDER BY t9.d, c COLLATE NOCASE
+} {
+  SELECT * FROM t8 EXCEPT SELECT c, d FROM t9 ORDER BY d, t8.a COLLATE NOCASE
+}
+
+do_catchsql_test 5.4 {
+  SELECT * FROM t8 UNION SELECT * FROM t9 ORDER BY a+b COLLATE NOCASE
+} {1 {1st ORDER BY term does not match any column in the result set}}
+
+do_execsql_test 6.1 {
+  DROP TABLE IF EXISTS t1;
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t1(a INTEGER);
+  CREATE TABLE t2(b TEXT);
+  INSERT INTO t2(b) VALUES('12345');
+  SELECT * FROM (SELECT a FROM t1 UNION SELECT b FROM t2) WHERE a=a;
+} {12345}
+
+# 2020-06-15 ticket 8f157e8010b22af0
+#
+reset_db
+do_execsql_test 7.1 {
+  CREATE TABLE t1(c1);     INSERT INTO t1 VALUES(12),(123),(1234),(NULL),('abc');
+  CREATE TABLE t2(c2);     INSERT INTO t2 VALUES(44),(55),(123);
+  CREATE TABLE t3(c3,c4);  INSERT INTO t3 VALUES(66,1),(123,2),(77,3);
+  CREATE VIEW t4 AS SELECT c3 FROM t3;
+  CREATE VIEW t5 AS SELECT c3 FROM t3 ORDER BY c4;
+}
+do_execsql_test 7.2 {
+  SELECT * FROM t1, t2 WHERE c1=(SELECT 123 INTERSECT SELECT c2 FROM t4) AND c1=123;
+} {123 123}
+do_execsql_test 7.3 {
+  SELECT * FROM t1, t2 WHERE c1=(SELECT 123 INTERSECT SELECT c2 FROM t5) AND c1=123;
+} {123 123}
+do_execsql_test 7.4 {
+  CREATE TABLE a(b);
+  CREATE VIEW c(d) AS SELECT b FROM a ORDER BY b;
+  SELECT sum(d) OVER( PARTITION BY(SELECT 0 FROM c JOIN a WHERE b =(SELECT b INTERSECT SELECT d FROM c) AND b = 123)) FROM c;
+} {}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 8.0 {
+  CREATE TABLE x1(x);
+  CREATE TABLE t1(a, b, c, d);
+  CREATE INDEX t1a ON t1(a);
+  CREATE INDEX t1b ON t1(b);
+}
+
+do_execsql_test 8.1 {
+      SELECT 'ABCD' FROM t1 
+      WHERE (a=? OR b=?) 
+      AND (0 OR (SELECT 'xyz' INTERSECT SELECT a ORDER BY 1))
+} {}
+
+#-------------------------------------------------------------------------
+# dbsqlfuzz a34f455c91ad75a0cf8cd9476841903f42930a7a
+#
+reset_db
+do_execsql_test 9.0 {
+  CREATE TABLE t1(a COLLATE nocase);
+  CREATE TABLE t2(b COLLATE nocase);
+
+  INSERT INTO t1 VALUES('ABC');
+  INSERT INTO t2 VALUES('abc');
+}
+
+do_execsql_test 9.1 {
+  SELECT a FROM t1 INTERSECT SELECT b FROM t2;
+} {ABC}
+
+do_execsql_test 9.2 {
+  SELECT * FROM (
+      SELECT a FROM t1 INTERSECT SELECT b FROM t2
+  ) WHERE a||'' = 'ABC';
+} {ABC}
+
+
+
+finish_test
diff --git a/test/selectB.test b/test/selectB.test
new file mode 100644
index 0000000000000000000000000000000000000000..05ec9c6bdb0f5fc96b13444b612354f80086a3eb
--- /dev/null
+++ b/test/selectB.test
@@ -0,0 +1,426 @@
+# 2008 June 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. 
+#
+# $Id: selectB.test,v 1.10 2009/04/02 16:59:47 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !compound {
+  finish_test
+  return
+}
+
+proc test_transform {testname sql1 sql2 results} {
+  set ::vdbe1 [list]
+  set ::vdbe2 [list]
+  db eval "explain $sql1" { lappend ::vdbe1 $opcode }
+  db eval "explain $sql2" { lappend ::vdbe2 $opcode }
+
+  do_test $testname.transform {
+    set ::vdbe1
+  } $::vdbe2
+
+  set ::sql1 $sql1
+  do_test $testname.sql1 {
+    execsql $::sql1
+  } $results
+
+  set ::sql2 $sql2
+  do_test $testname.sql2 {
+    execsql $::sql2
+  } $results
+}
+
+do_test selectB-1.1 {
+  execsql {
+    CREATE TABLE t1(a, b, c);
+    CREATE TABLE t2(d, e, f);
+
+    INSERT INTO t1 VALUES( 2,  4,  6);
+    INSERT INTO t1 VALUES( 8, 10, 12);
+    INSERT INTO t1 VALUES(14, 16, 18);
+
+    INSERT INTO t2 VALUES(3,   6,  9);
+    INSERT INTO t2 VALUES(12, 15, 18);
+    INSERT INTO t2 VALUES(21, 24, 27);
+  }
+} {}
+
+for {set ii 1} {$ii <= 2} {incr ii} {
+
+  if {$ii == 2} {
+    do_test selectB-2.1 {
+      execsql {
+        CREATE INDEX i1 ON t1(a);
+        CREATE INDEX i2 ON t2(d);
+      }
+    } {}
+  }
+
+  test_transform selectB-$ii.2 {
+    SELECT * FROM (SELECT a FROM t1 UNION ALL SELECT d FROM t2)
+  } {
+    SELECT a FROM t1 UNION ALL SELECT d FROM t2
+  } {2 8 14 3 12 21}
+  
+  test_transform selectB-$ii.3 {
+    SELECT * FROM (SELECT a FROM t1 UNION ALL SELECT d FROM t2) ORDER BY 1
+  } {
+    SELECT a FROM t1 UNION ALL SELECT d FROM t2 ORDER BY 1
+  } {2 3 8 12 14 21}
+  
+  test_transform selectB-$ii.4 {
+    SELECT * FROM 
+      (SELECT a FROM t1 UNION ALL SELECT d FROM t2) 
+    WHERE a>10 ORDER BY 1
+  } {
+    SELECT a FROM t1 WHERE a>10 UNION ALL SELECT d FROM t2 WHERE d>10 ORDER BY 1
+  } {12 14 21}
+  
+  test_transform selectB-$ii.5 {
+    SELECT * FROM 
+      (SELECT a FROM t1 UNION ALL SELECT d FROM t2) 
+    WHERE a>10 ORDER BY a
+  } {
+    SELECT a FROM t1 WHERE a>10 
+      UNION ALL 
+    SELECT d FROM t2 WHERE d>10 
+    ORDER BY a
+  } {12 14 21}
+  
+  test_transform selectB-$ii.6 {
+    SELECT * FROM 
+      (SELECT a FROM t1 UNION ALL SELECT d FROM t2 WHERE d > 12) 
+    WHERE a>10 ORDER BY a
+  } {
+    SELECT a FROM t1 WHERE a>10
+      UNION ALL 
+    SELECT d FROM t2 WHERE d>12 AND d>10
+    ORDER BY a
+  } {14 21}
+  
+  test_transform selectB-$ii.7 {
+    SELECT * FROM (SELECT a FROM t1 UNION ALL SELECT d FROM t2) ORDER BY 1 
+    LIMIT 2
+  } {
+    SELECT a FROM t1 UNION ALL SELECT d FROM t2 ORDER BY 1 LIMIT 2
+  } {2 3}
+  
+  test_transform selectB-$ii.8 {
+    SELECT * FROM (SELECT a FROM t1 UNION ALL SELECT d FROM t2) ORDER BY 1 
+    LIMIT 2 OFFSET 3
+  } {
+    SELECT a FROM t1 UNION ALL SELECT d FROM t2 ORDER BY 1 LIMIT 2 OFFSET 3
+  } {12 14}
+
+  test_transform selectB-$ii.9 {
+    SELECT * FROM (
+      SELECT a FROM t1 UNION ALL SELECT d FROM t2 UNION ALL SELECT c FROM t1
+    ) 
+  } {
+    SELECT a FROM t1 UNION ALL SELECT d FROM t2 UNION ALL SELECT c FROM t1
+  } {2 8 14 3 12 21 6 12 18}
+  
+  test_transform selectB-$ii.10 {
+    SELECT * FROM (
+      SELECT a FROM t1 UNION ALL SELECT d FROM t2 UNION ALL SELECT c FROM t1
+    ) ORDER BY 1
+  } {
+    SELECT a FROM t1 UNION ALL SELECT d FROM t2 UNION ALL SELECT c FROM t1
+    ORDER BY 1
+  } {2 3 6 8 12 12 14 18 21}
+  
+  test_transform selectB-$ii.11 {
+    SELECT * FROM (
+      SELECT a FROM t1 UNION ALL SELECT d FROM t2 UNION ALL SELECT c FROM t1
+    ) WHERE a>=10 ORDER BY 1 LIMIT 3
+  } {
+    SELECT a FROM t1 WHERE a>=10 UNION ALL SELECT d FROM t2 WHERE d>=10
+    UNION ALL SELECT c FROM t1 WHERE c>=10
+    ORDER BY 1 LIMIT 3
+  } {12 12 14}
+
+  test_transform selectB-$ii.12 {
+    SELECT * FROM (SELECT a FROM t1 UNION ALL SELECT d FROM t2 LIMIT 2)
+  } {
+    SELECT a FROM t1 UNION ALL SELECT d FROM t2 LIMIT 2
+  } {2 8}
+
+  # An ORDER BY in a compound subqueries defeats flattening.  Ticket #3773
+  # test_transform selectB-$ii.13 {
+  #   SELECT * FROM (SELECT a FROM t1 UNION ALL SELECT d FROM t2 ORDER BY a ASC)
+  # } {
+  #   SELECT a FROM t1 UNION ALL SELECT d FROM t2 ORDER BY 1 ASC
+  # } {2 3 8 12 14 21}
+  # 
+  # test_transform selectB-$ii.14 {
+  #  SELECT * FROM (SELECT a FROM t1 UNION ALL SELECT d FROM t2 ORDER BY a DESC)
+  # } {
+  #  SELECT a FROM t1 UNION ALL SELECT d FROM t2 ORDER BY 1 DESC
+  # } {21 14 12 8 3 2}
+  #
+  # test_transform selectB-$ii.14 {
+  #   SELECT * FROM (
+  #     SELECT a FROM t1 UNION ALL SELECT d FROM t2 ORDER BY a DESC
+  #   ) LIMIT 2 OFFSET 2
+  # } {
+  #   SELECT a FROM t1 UNION ALL SELECT d FROM t2 ORDER BY 1 DESC
+  #    LIMIT 2 OFFSET 2
+  # } {12 8}
+  #
+  # test_transform selectB-$ii.15 {
+  #   SELECT * FROM (
+  #     SELECT a, b FROM t1 UNION ALL SELECT d, e FROM t2 ORDER BY a ASC, e DESC
+  #  )
+  # } {
+  #   SELECT a, b FROM t1 UNION ALL SELECT d, e FROM t2 ORDER BY a ASC, e DESC
+  # } {2 4 3 6 8 10 12 15 14 16 21 24}
+}
+
+do_test selectB-3.0 {
+  execsql {
+    DROP INDEX i1;
+    DROP INDEX i2;
+  }
+} {}
+
+for {set ii 3} {$ii <= 6} {incr ii} {
+
+  switch $ii {
+    4 {
+      optimization_control db query-flattener off
+    }
+    5 {
+      optimization_control db query-flattener on
+      do_test selectB-5.0 {
+        execsql {
+          CREATE INDEX i1 ON t1(a);
+          CREATE INDEX i2 ON t1(b);
+          CREATE INDEX i3 ON t1(c);
+          CREATE INDEX i4 ON t2(d);
+          CREATE INDEX i5 ON t2(e);
+          CREATE INDEX i6 ON t2(f);
+        }
+      } {}
+    }
+    6 {
+      optimization_control db query-flattener off
+    }
+  }
+
+  do_test selectB-$ii.1 {
+    execsql {
+      SELECT DISTINCT * FROM 
+        (SELECT c FROM t1 UNION ALL SELECT e FROM t2) 
+      ORDER BY 1;
+    }
+  } {6 12 15 18 24}
+  
+  do_test selectB-$ii.2 {
+    execsql {
+      SELECT c, count(*) FROM 
+        (SELECT c FROM t1 UNION ALL SELECT e FROM t2) 
+      GROUP BY c ORDER BY 1;
+    }
+  } {6 2 12 1 15 1 18 1 24 1}
+  do_test selectB-$ii.3 {
+    execsql {
+      SELECT c, count(*) FROM 
+        (SELECT c FROM t1 UNION ALL SELECT e FROM t2) 
+      GROUP BY c HAVING count(*)>1;
+    }
+  } {6 2}
+  do_test selectB-$ii.4 {
+    execsql {
+      SELECT t4.c, t3.a FROM 
+        (SELECT c FROM t1 UNION ALL SELECT e FROM t2) AS t4, t1 AS t3
+      WHERE t3.a=14
+      ORDER BY 1
+    }
+  } {6 14 6 14 12 14 15 14 18 14 24 14}
+  
+  do_test selectB-$ii.5 {
+    execsql {
+      SELECT d FROM t2 
+      EXCEPT 
+      SELECT a FROM (SELECT a FROM t1 UNION ALL SELECT d FROM t2)
+    }
+  } {}
+  do_test selectB-$ii.6 {
+    execsql {
+      SELECT * FROM (SELECT a FROM t1 UNION ALL SELECT d FROM t2)
+      EXCEPT 
+      SELECT * FROM (SELECT a FROM t1 UNION ALL SELECT d FROM t2)
+    }
+  } {}
+  do_test selectB-$ii.7 {
+    execsql {
+      SELECT c FROM t1
+      EXCEPT 
+      SELECT * FROM (SELECT e FROM t2 UNION ALL SELECT f FROM t2)
+    }
+  } {12}
+  do_test selectB-$ii.8 {
+    execsql {
+      SELECT * FROM (SELECT e FROM t2 UNION ALL SELECT f FROM t2)
+      EXCEPT 
+      SELECT c FROM t1
+    }
+  } {9 15 24 27}
+  do_test selectB-$ii.9 {
+    execsql {
+      SELECT * FROM (SELECT e FROM t2 UNION ALL SELECT f FROM t2)
+      EXCEPT 
+      SELECT c FROM t1
+      ORDER BY c DESC
+    }
+  } {27 24 15 9}
+  
+  do_test selectB-$ii.10 {
+    execsql {
+      SELECT * FROM (SELECT e FROM t2 UNION ALL SELECT f FROM t2)
+      UNION 
+      SELECT c FROM t1
+      ORDER BY c DESC
+    }
+  } {27 24 18 15 12 9 6}
+  do_test selectB-$ii.11 {
+    execsql {
+      SELECT c FROM t1
+      UNION 
+      SELECT * FROM (SELECT e FROM t2 UNION ALL SELECT f FROM t2)
+      ORDER BY c
+    }
+  } {6 9 12 15 18 24 27}
+  do_test selectB-$ii.12 {
+    execsql {
+      SELECT c FROM t1 UNION SELECT e FROM t2 UNION ALL SELECT f FROM t2
+      ORDER BY c
+    }
+  } {6 9 12 15 18 18 24 27}
+  do_test selectB-$ii.13 {
+    execsql {
+      SELECT * FROM (SELECT e FROM t2 UNION ALL SELECT f FROM t2)
+      UNION 
+      SELECT * FROM (SELECT e FROM t2 UNION ALL SELECT f FROM t2)
+      ORDER BY 1
+    }
+  } {6 9 15 18 24 27}
+  
+  do_test selectB-$ii.14 {
+    execsql {
+      SELECT c FROM t1
+      INTERSECT 
+      SELECT * FROM (SELECT e FROM t2 UNION ALL SELECT f FROM t2)
+      ORDER BY 1
+    }
+  } {6 18}
+  do_test selectB-$ii.15 {
+    execsql {
+      SELECT * FROM (SELECT e FROM t2 UNION ALL SELECT f FROM t2)
+      INTERSECT 
+      SELECT c FROM t1
+      ORDER BY 1
+    }
+  } {6 18}
+  do_test selectB-$ii.16 {
+    execsql {
+      SELECT * FROM (SELECT e FROM t2 UNION ALL SELECT f FROM t2)
+      INTERSECT 
+      SELECT * FROM (SELECT e FROM t2 UNION ALL SELECT f FROM t2)
+      ORDER BY 1
+    }
+  } {6 9 15 18 24 27}
+
+  do_test selectB-$ii.17 {
+    execsql {
+      SELECT * FROM (
+        SELECT a FROM t1 UNION ALL SELECT d FROM t2 LIMIT 4
+      ) LIMIT 2
+    }
+  } {2 8}
+
+  do_test selectB-$ii.18 {
+    execsql {
+      SELECT * FROM (
+        SELECT a FROM t1 UNION ALL SELECT d FROM t2 LIMIT 4 OFFSET 2
+      ) LIMIT 2
+    }
+  } {14 3}
+
+  do_test selectB-$ii.19 {
+    execsql {
+      SELECT * FROM (
+        SELECT DISTINCT (a/10) FROM t1 UNION ALL SELECT DISTINCT(d%2) FROM t2
+      )
+    }
+  } {0 1 1 0}
+
+  do_test selectB-$ii.20 {
+    execsql {
+      SELECT DISTINCT * FROM (
+        SELECT DISTINCT (a/10) FROM t1 UNION ALL SELECT DISTINCT(d%2) FROM t2
+      )
+    }
+  } {0 1}
+
+  do_test selectB-$ii.21 {
+    execsql {
+      SELECT * FROM (SELECT * FROM t1 UNION ALL SELECT * FROM t2) ORDER BY a+b
+    }
+  } {2 4 6 3 6 9 8 10 12 12 15 18 14 16 18 21 24 27}
+
+  do_test selectB-$ii.22 {
+    execsql {
+      SELECT * FROM (SELECT 345 UNION ALL SELECT d FROM t2) ORDER BY 1;
+    }
+  } {3 12 21 345}
+
+  do_test selectB-$ii.23 {
+    execsql {
+      SELECT x, y FROM (
+        SELECT a AS x, b AS y FROM t1
+        UNION ALL
+        SELECT a*10 + 0.1, f*10 + 0.1 FROM t1 JOIN t2 ON (c=d)
+        UNION ALL
+        SELECT a*100, b*100 FROM t1
+      ) ORDER BY 1;
+    }
+  } {2 4 8 10 14 16 80.1 180.1 200 400 800 1000 1400 1600}
+
+  do_test selectB-$ii.24 {
+    execsql {
+      SELECT x, y FROM (
+        SELECT a AS x, b AS y FROM t1
+        UNION ALL
+        SELECT a*10 + 0.1, f*10 + 0.1 FROM t1 LEFT JOIN t2 ON (c=d)
+        UNION ALL
+        SELECT a*100, b*100 FROM t1
+      ) ORDER BY 1;
+    }
+  } {2 4 8 10 14 16 20.1 {} 80.1 180.1 140.1 {} 200 400 800 1000 1400 1600}
+
+  do_test selectB-$ii.25 {
+    execsql {
+      SELECT x+y FROM (
+        SELECT a AS x, b AS y FROM t1
+        UNION ALL
+        SELECT a*10 + 0.1, f*10 + 0.1 FROM t1 LEFT JOIN t2 ON (c=d)
+        UNION ALL
+        SELECT a*100, b*100 FROM t1
+      ) WHERE y+x NOT NULL ORDER BY 1;
+    }
+  } {6 18 30 260.2 600 1800 3000}
+}
+
+finish_test
diff --git a/test/selectC.test b/test/selectC.test
new file mode 100644
index 0000000000000000000000000000000000000000..42fa1d11b8ee929be06d24a1dd3567ac5fbf1040
--- /dev/null
+++ b/test/selectC.test
@@ -0,0 +1,275 @@
+# 2008 September 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. 
+#
+# $Id: selectC.test,v 1.5 2009/05/17 15:26:21 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix selectC
+
+# Ticket #
+do_test selectC-1.1 {
+  execsql {
+    CREATE TABLE t1(a, b, c);
+    INSERT INTO t1 VALUES(1,'aaa','bbb');
+    INSERT INTO t1 SELECT * FROM t1;
+    INSERT INTO t1 VALUES(2,'ccc','ddd');
+
+    SELECT DISTINCT a AS x, b||c AS y
+      FROM t1
+     WHERE y IN ('aaabbb','xxx');
+  }
+} {1 aaabbb}
+do_test selectC-1.2 {
+  execsql {
+    SELECT DISTINCT a AS x, b||c AS y
+      FROM t1
+     WHERE b||c IN ('aaabbb','xxx');
+  }
+} {1 aaabbb}
+do_test selectC-1.3 {
+  execsql {
+    SELECT DISTINCT a AS x, b||c AS y
+      FROM t1
+     WHERE y='aaabbb'
+  }
+} {1 aaabbb}
+do_test selectC-1.4 {
+  execsql {
+    SELECT DISTINCT a AS x, b||c AS y
+      FROM t1
+     WHERE b||c='aaabbb'
+  }
+} {1 aaabbb}
+do_test selectC-1.5 {
+  execsql {
+    SELECT DISTINCT a AS x, b||c AS y
+      FROM t1
+     WHERE x=2
+  }
+} {2 cccddd}
+do_test selectC-1.6 {
+  execsql {
+    SELECT DISTINCT a AS x, b||c AS y
+      FROM t1
+     WHERE a=2
+  }
+} {2 cccddd}
+do_test selectC-1.7 {
+  execsql {
+    SELECT DISTINCT a AS x, b||c AS y
+      FROM t1
+     WHERE +y='aaabbb'
+  }
+} {1 aaabbb}
+do_test selectC-1.8 {
+  execsql {
+    SELECT a AS x, b||c AS y
+      FROM t1
+     GROUP BY x, y
+    HAVING y='aaabbb'
+  }
+} {1 aaabbb}
+do_test selectC-1.9 {
+  execsql {
+    SELECT a AS x, b||c AS y
+      FROM t1
+     GROUP BY x, y
+    HAVING b||c='aaabbb'
+  }
+} {1 aaabbb}
+do_test selectC-1.10 {
+  execsql {
+    SELECT a AS x, b||c AS y
+      FROM t1
+     WHERE y='aaabbb'
+     GROUP BY x, y
+  }
+} {1 aaabbb}
+do_test selectC-1.11 {
+  execsql {
+    SELECT a AS x, b||c AS y
+      FROM t1
+     WHERE b||c='aaabbb'
+     GROUP BY x, y
+  }
+} {1 aaabbb}
+proc longname_toupper x {return [string toupper $x]}
+db function uppercaseconversionfunctionwithaverylongname longname_toupper
+do_test selectC-1.12.1 {
+  execsql {
+    SELECT DISTINCT upper(b) AS x
+      FROM t1
+     ORDER BY x
+  }
+} {AAA CCC}
+do_test selectC-1.12.2 {
+  execsql {
+    SELECT DISTINCT uppercaseconversionfunctionwithaverylongname(b) AS x
+      FROM t1
+     ORDER BY x
+  }
+} {AAA CCC}
+do_test selectC-1.13.1 {
+  execsql {
+    SELECT upper(b) AS x
+      FROM t1
+     GROUP BY x
+     ORDER BY x
+  }
+} {AAA CCC}
+do_test selectC-1.13.2 {
+  execsql {
+    SELECT uppercaseconversionfunctionwithaverylongname(b) AS x
+      FROM t1
+     GROUP BY x
+     ORDER BY x
+  }
+} {AAA CCC}
+do_test selectC-1.14.1 {
+  execsql {
+    SELECT upper(b) AS x
+      FROM t1
+     ORDER BY x DESC
+  }
+} {CCC AAA AAA}
+do_test selectC-1.14.2 {
+  execsql {
+    SELECT uppercaseconversionfunctionwithaverylongname(b) AS x
+      FROM t1
+     ORDER BY x DESC
+  }
+} {CCC AAA AAA}
+
+# The following query used to leak memory.  Verify that has been fixed.
+#
+ifcapable trigger&&compound {
+  do_test selectC-2.1 {
+    catchsql {
+      CREATE TABLE t21a(a,b);
+      INSERT INTO t21a VALUES(1,2);
+      CREATE TABLE t21b(n);
+      CREATE TRIGGER r21 AFTER INSERT ON t21b BEGIN
+        SELECT a FROM t21a WHERE a>new.x UNION ALL
+        SELECT b FROM t21a WHERE b>new.x ORDER BY 1 LIMIT 2;
+      END;
+      INSERT INTO t21b VALUES(6);
+    }
+  } {1 {no such column: new.x}}
+}
+
+# Check that ticket [883034dcb5] is fixed.
+#
+do_test selectC-3.1 {
+  execsql {
+    CREATE TABLE person (
+        org_id          TEXT NOT NULL,
+        nickname        TEXT NOT NULL,
+        license         TEXT,
+        CONSTRAINT person_pk PRIMARY KEY (org_id, nickname),
+        CONSTRAINT person_license_uk UNIQUE (license)
+    );
+    INSERT INTO person VALUES('meyers', 'jack', '2GAT123');
+    INSERT INTO person VALUES('meyers', 'hill', 'V345FMP');
+    INSERT INTO person VALUES('meyers', 'jim', '2GAT138');
+    INSERT INTO person VALUES('smith', 'maggy', '');
+    INSERT INTO person VALUES('smith', 'jose', 'JJZ109');
+    INSERT INTO person VALUES('smith', 'jack', 'THX138');
+    INSERT INTO person VALUES('lakeside', 'dave', '953OKG');
+    INSERT INTO person VALUES('lakeside', 'amy', NULL);
+    INSERT INTO person VALUES('lake-apts', 'tom', NULL);
+    INSERT INTO person VALUES('acorn', 'hideo', 'CQB421');
+    
+    SELECT 
+      org_id, 
+      count((NOT (org_id IS NULL)) AND (NOT (nickname IS NULL)))
+    FROM person 
+    WHERE (CASE WHEN license != '' THEN 1 ELSE 0 END)
+    GROUP BY 1;
+  }
+} {acorn 1 lakeside 1 meyers 3 smith 2}
+do_test selectC-3.2 {
+  execsql {
+    CREATE TABLE t2(a PRIMARY KEY, b);
+    INSERT INTO t2 VALUES('abc', 'xxx');
+    INSERT INTO t2 VALUES('def', 'yyy');
+    SELECT a, max(b || a) FROM t2 WHERE (b||b||b)!='value' GROUP BY a;
+  }
+} {abc xxxabc def yyydef}
+do_test selectC-3.3 {
+  execsql {
+    SELECT b, max(a || b) FROM t2 WHERE (b||b||b)!='value' GROUP BY a;
+  }
+} {xxx abcxxx yyy defyyy}
+
+
+proc udf {} { incr ::udf }
+set ::udf 0
+db function udf udf
+
+do_execsql_test selectC-4.1 {
+  create table t_distinct_bug (a, b, c);
+  insert into t_distinct_bug values ('1', '1', 'a');
+  insert into t_distinct_bug values ('1', '2', 'b');
+  insert into t_distinct_bug values ('1', '3', 'c');
+  insert into t_distinct_bug values ('1', '1', 'd');
+  insert into t_distinct_bug values ('1', '2', 'e');
+  insert into t_distinct_bug values ('1', '3', 'f');
+} {}
+
+do_execsql_test selectC-4.2 {
+  select a from (select distinct a, b from t_distinct_bug)
+} {1 1 1}
+
+do_execsql_test selectC-4.2b {
+  CREATE VIEW v42b AS SELECT DISTINCT a, b FROM t_distinct_bug;
+  SELECT a FROM v42b;
+} {1 1 1}
+
+do_execsql_test selectC-4.3 {
+  select a, udf() from (select distinct a, b from t_distinct_bug)
+} {1 1 1 2 1 3}
+
+#-------------------------------------------------------------------------
+# Test that the problem in ticket #190c2507 has been fixed.
+#
+do_execsql_test 5.0 {
+  CREATE TABLE x1(a);
+  CREATE TABLE x2(b);
+  CREATE TABLE x3(c);
+  CREATE VIEW vvv AS SELECT b FROM x2 ORDER BY 1;
+
+  INSERT INTO x1 VALUES('a'), ('b');
+  INSERT INTO x2 VALUES(22), (23), (25), (24), (21);
+  INSERT INTO x3 VALUES(302), (303), (301);
+}
+
+do_execsql_test 5.1 {
+  CREATE TABLE x4 AS SELECT b FROM vvv UNION ALL SELECT c from x3;
+  SELECT * FROM x4;
+} {21 22 23 24 25 302 303 301}
+
+do_execsql_test 5.2 {
+  SELECT * FROM x1, x4
+} {
+  a 21 a 22 a 23 a 24 a 25 a 302 a 303 a 301
+  b 21 b 22 b 23 b 24 b 25 b 302 b 303 b 301
+}
+
+do_execsql_test 5.3 {
+  SELECT * FROM x1, (SELECT b FROM vvv UNION ALL SELECT c from x3) ORDER BY 1,2;
+} {
+  a 21 a 22 a 23 a 24 a 25 a 301 a 302 a 303
+  b 21 b 22 b 23 b 24 b 25 b 301 b 302 b 303
+}
+
+finish_test
diff --git a/test/selectD.test b/test/selectD.test
new file mode 100644
index 0000000000000000000000000000000000000000..818d8ccc0b9f1c6d0fdbc4b3082ebb719b24bfa4
--- /dev/null
+++ b/test/selectD.test
@@ -0,0 +1,174 @@
+# 2012 December 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for name resolution in SELECT
+# statements that have parenthesized FROM clauses.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+
+for {set i 1} {$i<=2} {incr i} {
+  db close
+  forcedelete test$i.db
+  sqlite3 db test$i.db
+  if {$i==2} {
+    optimization_control db query-flattener off
+  }
+  do_test selectD-$i.0 {
+    db eval {
+      ATTACH ':memory:' AS aux1;
+      CREATE TABLE t1(a,b); INSERT INTO t1 VALUES(111,'x1');
+      CREATE TABLE t2(a,b); INSERT INTO t2 VALUES(222,'x2');
+      CREATE TEMP TABLE t3(a,b); INSERT INTO t3 VALUES(333,'x3');
+      CREATE TABLE main.t4(a,b); INSERT INTO main.t4 VALUES(444,'x4');
+      CREATE TABLE aux1.t4(a,b); INSERT INTO aux1.t4 VALUES(555,'x5');
+    }
+  } {}
+  do_test selectD-$i.1 {
+    db eval {
+      SELECT *
+        FROM (t1), (t2), (t3), (t4)
+       WHERE t4.a=t3.a+111 
+         AND t3.a=t2.a+111
+         AND t2.a=t1.a+111;
+    }
+  } {111 x1 222 x2 333 x3 444 x4}
+  do_test selectD-$i.2.1 {
+    db eval {
+      SELECT *
+        FROM t1 JOIN (t2 JOIN (t3 JOIN t4 ON t4.a=t3.a+111)
+                              ON t3.a=t2.a+111)
+                     ON t2.a=t1.a+111;
+    }
+  } {111 x1 222 x2 333 x3 444 x4}
+  do_test selectD-$i.2.2 {
+    db eval {
+      SELECT t3.a
+        FROM t1 JOIN (t2 JOIN (t3 JOIN t4 ON t4.a=t3.a+111)
+                              ON t3.a=t2.a+111)
+                     ON t2.a=t1.a+111;
+    }
+  } {333}
+  do_test selectD-$i.2.3 {
+    db eval {
+      SELECT t3.*
+        FROM t1 JOIN (t2 JOIN (t3 JOIN t4 ON t4.a=t3.a+111)
+                              ON t3.a=t2.a+111)
+                     ON t2.a=t1.a+111;
+    }
+  } {333 x3}
+  do_test selectD-$i.2.3 {
+    db eval {
+      SELECT t3.*, t2.*
+        FROM t1 JOIN (t2 JOIN (t3 JOIN t4 ON t4.a=t3.a+111)
+                              ON t3.a=t2.a+111)
+                     ON t2.a=t1.a+111;
+    }
+  } {333 x3 222 x2}
+  do_test selectD-$i.2.4 {
+    db eval {
+      SELECT *
+        FROM t1 JOIN (t2 JOIN (main.t4 JOIN aux1.t4 ON aux1.t4.a=main.t4.a+111)
+                              ON main.t4.a=t2.a+222)
+                     ON t2.a=t1.a+111;
+    }
+  } {111 x1 222 x2 444 x4 555 x5}
+  do_test selectD-$i.2.5 {
+    db eval {
+      SELECT *
+        FROM t1 JOIN (t2 JOIN (main.t4 AS x JOIN aux1.t4 ON aux1.t4.a=x.a+111)
+                              ON x.a=t2.a+222)
+                     ON t2.a=t1.a+111;
+    }
+  } {111 x1 222 x2 444 x4 555 x5}
+  do_test selectD-$i.2.6 {
+    catchsql {
+      SELECT *
+        FROM t1 JOIN (t2 JOIN (main.t4 JOIN aux.t4 ON aux.t4.a=main.t4.a+111)
+                              ON main.t4.a=t2.a+222)
+                     ON t2.a=t1.a+111;
+    }
+  } {1 {no such table: aux.t4}}
+  do_test selectD-$i.2.7 {
+    db eval {
+      SELECT x.a, y.b
+        FROM t1 JOIN (t2 JOIN (main.t4 x JOIN aux1.t4 y ON y.a=x.a+111)
+                              ON x.a=t2.a+222)
+                     ON t2.a=t1.a+111;
+    }
+  } {444 x5}
+  do_test selectD-$i.3 {
+    db eval {
+      UPDATE t2 SET a=111;
+      UPDATE t3 SET a=111;
+      UPDATE t4 SET a=111;
+      SELECT *
+        FROM t1 JOIN (t2 JOIN (t3 JOIN t4 USING(a)) USING (a)) USING (a);
+    }
+  } {111 x1 x2 x3 x4}
+  do_test selectD-$i.4 {
+    db eval {
+      UPDATE t2 SET a=111;
+      UPDATE t3 SET a=111;
+      UPDATE t4 SET a=111;
+      SELECT *
+        FROM t1 LEFT JOIN (t2 LEFT JOIN (t3 LEFT JOIN t4 USING(a))
+                                        USING (a))
+                           USING (a);
+    }
+  } {111 x1 x2 x3 x4}
+  do_test selectD-$i.5 {
+    db eval {
+      UPDATE t3 SET a=222;
+      UPDATE t4 SET a=222;
+      SELECT *
+        FROM (t1 LEFT JOIN t2 USING(a)) JOIN (t3 LEFT JOIN t4 USING(a))
+             ON t1.a=t3.a-111;
+    }
+  } {111 x1 x2 222 x3 x4}
+  do_test selectD-$i.6 {
+    db eval {
+      UPDATE t4 SET a=333;
+      SELECT *
+        FROM (t1 LEFT JOIN t2 USING(a)) JOIN (t3 LEFT JOIN t4 USING(a))
+             ON t1.a=t3.a-111;
+    }
+  } {111 x1 x2 222 x3 {}}
+  do_test selectD-$i.7 {
+    db eval {
+      SELECT t1.*, t2.*, t3.*, t4.b
+        FROM (t1 LEFT JOIN t2 USING(a)) JOIN (t3 LEFT JOIN t4 USING(a))
+             ON t1.a=t3.a-111;
+    }
+  } {111 x1 111 x2 222 x3 {}}
+}
+
+# The following test was added on 2013-04-24 in order to verify that
+# the datatypes and affinities of sub-sub-queries are set prior to computing
+# the datatypes and affinities of the parent sub-queries because the 
+# latter computation depends on the former.
+#
+do_execsql_test selectD-4.1 {
+  CREATE TABLE t41(a INTEGER PRIMARY KEY, b INTEGER);
+  CREATE TABLE t42(d INTEGER PRIMARY KEY, e INTEGER);
+  CREATE TABLE t43(f INTEGER PRIMARY KEY, g INTEGER);
+  EXPLAIN QUERY PLAN
+  SELECT * 
+   FROM t41
+   LEFT JOIN (SELECT count(*) AS cnt, x1.d
+                FROM (t42 INNER JOIN t43 ON d=g) AS x1
+               WHERE x1.d>5
+               GROUP BY x1.d) AS x2
+                  ON t41.b=x2.d;
+} {/SEARCH x2 USING AUTOMATIC/}
+
+finish_test
diff --git a/test/selectE.test b/test/selectE.test
new file mode 100644
index 0000000000000000000000000000000000000000..1cabeff3702b4c686a7bc93187e608feec048312
--- /dev/null
+++ b/test/selectE.test
@@ -0,0 +1,100 @@
+# 2013-05-07
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for compound SELECT statements
+# that have ORDER BY clauses with collating sequences that differ
+# from the collating sequence used for comparison in the compound.
+# 
+# Ticket 6709574d2a8d8b9be3a9cb1afbf4ff2de48ea4e7:
+# drh added on 2013-05-06 15:21:16:
+#
+# In the code shown below (which is intended to be run from the
+# sqlite3.exe command-line tool) the three SELECT statements should all
+# generate the same answer. But the third one does not. It is as if the
+# COLLATE clause on the ORDER BY somehow got pulled into the EXCEPT
+# operator. Note that the ".print" commands are instructions to the
+# sqlite3.exe shell program to output delimiter lines so that you can more
+# easily tell where the output of one query ends and the next query
+# begins. 
+# 
+#     CREATE TABLE t1(a);
+#     INSERT INTO t1 VALUES('abc'),('def');
+#     CREATE TABLE t2(a);
+#     INSERT INTO t2 VALUES('DEF');
+# 
+#     SELECT a FROM t1 EXCEPT SELECT a FROM t2 ORDER BY a;
+#     .print -----
+#     SELECT a FROM (SELECT a FROM t1 EXCEPT SELECT a FROM t2)
+#      ORDER BY a COLLATE nocase;
+#     .print -----
+#     SELECT a FROM t1 EXCEPT SELECT a FROM t2 ORDER BY a COLLATE nocase;
+# 
+# Bisecting shows that this problem was introduced in SQLite version 3.6.0
+# by check-in [8bbfa97837a74ef] on 2008-06-15. 
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test selectE-1.0 {
+  db eval {
+    CREATE TABLE t1(a);
+    INSERT INTO t1 VALUES('abc'),('def'),('ghi');
+    CREATE TABLE t2(a);
+    INSERT INTO t2 VALUES('DEF'),('abc');
+    CREATE TABLE t3(a);
+    INSERT INTO t3 VALUES('def'),('jkl');
+
+    SELECT a FROM t1 EXCEPT SELECT a FROM t2
+     ORDER BY a COLLATE nocase;
+  }
+} {def ghi}
+do_test selectE-1.1 {
+  db eval {
+    SELECT a FROM t2 EXCEPT SELECT a FROM t3
+     ORDER BY a COLLATE nocase;
+  }
+} {abc DEF}
+do_test selectE-1.2 {
+  db eval {
+    SELECT a FROM t2 EXCEPT SELECT a FROM t3
+     ORDER BY a COLLATE binary;
+  }
+} {DEF abc}
+do_test selectE-1.3 {
+  db eval {
+    SELECT a FROM t2 EXCEPT SELECT a FROM t3
+     ORDER BY a;
+  }
+} {DEF abc}
+
+do_test selectE-2.1 {
+  db eval {
+    DELETE FROM t2;
+    DELETE FROM t3;
+    INSERT INTO t2 VALUES('ABC'),('def'),('GHI'),('jkl');
+    INSERT INTO t3 SELECT lower(a) FROM t2;
+    SELECT a COLLATE nocase FROM t2 EXCEPT SELECT a FROM t3
+     ORDER BY 1
+  }
+} {}
+do_test selectE-2.2 {
+  db eval {
+    SELECT a COLLATE nocase FROM t2 EXCEPT SELECT a FROM t3
+     ORDER BY 1 COLLATE binary
+  }
+} {}
+
+do_catchsql_test selectE-3.1 {
+  SELECT 1 EXCEPT SELECT 2 ORDER BY 1 COLLATE nocase EXCEPT SELECT 3;
+} {1 {ORDER BY clause should come after EXCEPT not before}}
+
+
+finish_test
diff --git a/test/selectF.test b/test/selectF.test
new file mode 100644
index 0000000000000000000000000000000000000000..3fb226e012fd6fff70538f454c6bc866e890ec47
--- /dev/null
+++ b/test/selectF.test
@@ -0,0 +1,49 @@
+# 2014-03-03
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file verifies that an OP_Copy operation is used instead of OP_SCopy
+# in a compound select in a case where the source register might be changed
+# before the copy is used.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix selectF
+
+do_execsql_test 1 {
+  BEGIN TRANSACTION;
+  CREATE TABLE t1(a, b, c);
+  INSERT INTO "t1" VALUES(1,'one','I');
+  CREATE TABLE t2(d, e, f);
+  INSERT INTO "t2" VALUES(5,'ten','XX');
+  INSERT INTO "t2" VALUES(6,NULL,NULL);
+
+  CREATE INDEX i1 ON t1(b, a);
+  COMMIT;
+}
+
+#explain_i {
+#  SELECT * FROM t2
+#  UNION ALL 
+#  SELECT * FROM t1 WHERE a<5 
+#  ORDER BY 2, 1
+#}
+
+do_execsql_test 2 {
+  SELECT * FROM t2
+  UNION ALL 
+  SELECT * FROM t1 WHERE a<5 
+  ORDER BY 2, 1
+} {6 {} {} 1 one I 5 ten XX}
+
+
+  
+finish_test
diff --git a/test/selectG.test b/test/selectG.test
new file mode 100644
index 0000000000000000000000000000000000000000..fab4c4ed4deca76146ae0dd1dee32506a601eaab
--- /dev/null
+++ b/test/selectG.test
@@ -0,0 +1,59 @@
+# 2015-01-05
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file verifies that INSERT operations with a very large number of
+# VALUE terms works and does not hit the SQLITE_LIMIT_COMPOUND_SELECT limit.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix selectG
+
+# Do an INSERT with a VALUES clause that contains 100,000 entries.  Verify
+# that this insert happens quickly (in less than 10 seconds).  Actually, the
+# insert will normally happen in less than 0.5 seconds on a workstation, but
+# we allow plenty of overhead for slower machines.  The speed test checks
+# for an O(N*N) inefficiency that was once in the code and that would make
+# the insert run for over a minute.
+#
+do_test 100 {
+  set sql "CREATE TABLE t1(x);\nINSERT INTO t1(x) VALUES"
+  for {set i 1} {$i<100000} {incr i} {
+    append sql "($i),"
+  }
+  append sql "($i);"
+  set microsec [lindex [time {db eval $sql}] 0]
+  db eval {
+    SELECT count(x), sum(x), avg(x), $microsec<10000000 FROM t1;
+  }
+} {100000 5000050000 50000.5 1}
+  
+# 2018-01-14.  A 100K-entry VALUES clause within a scalar expression does
+# not cause processor stack overflow.
+#
+do_test 110 {
+  set sql "SELECT (VALUES"
+  for {set i 1} {$i<100000} {incr i} {
+    append sql "($i),"
+  }
+  append sql "($i));"
+  db eval $sql
+} {1}
+
+# Only the left-most term of a multi-valued VALUES within a scalar
+# expression is evaluated.
+#
+do_test 120 {
+  set n [llength [split [db eval "explain $sql"] \n]]
+  expr {$n<10}
+} {1}
+
+finish_test
diff --git a/test/selectH.test b/test/selectH.test
new file mode 100644
index 0000000000000000000000000000000000000000..41f0999fe36319dd8135540c761e208300840f7e
--- /dev/null
+++ b/test/selectH.test
@@ -0,0 +1,145 @@
+# 2023-02-16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test cases for the omit-unused-subquery-column optimization.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix selectH
+
+do_execsql_test 1.1 {
+  CREATE TABLE t1(
+     c0,  c1,  c2,  c3,  c4,  c5,  c6,  c7,  c8,  c9,
+     c10, c11, c12, c13, c14, c15, c16, c17, c18, c19,
+     c20, c21, c22, c23, c24, c25, c26, c27, c28, c29,
+     c30, c31, c32, c33, c34, c35, c36, c37, c38, c39,
+     c40, c41, c42, c43, c44, c45, c46, c47, c48, c49,
+     c50, c51, c52, c53, c54, c55, c56, c57, c58, c59,
+     c60, c61, c62, c63, c64, c65
+  );
+  INSERT INTO t1 VALUES(
+     0,  1,  2,  3,  4,  5,  6,  7,  8,  9,
+     10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
+     20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
+     30, 31, 32, 33, 34, 35, 36, 37, 38, 39,
+     40, 41, 42, 43, 44, 45, 46, 47, 48, 49,
+     50, 51, 52, 53, 54, 55, 56, 57, 58, 59,
+     60, 61, 62, 63, 64, 65
+  );
+  CREATE INDEX t1c60 ON t1(c60);
+}
+
+# The SQL counter(N) function adjusts the value of the global
+# TCL variable ::selectH_cnt by the value N and returns the new
+# value.  By putting calls to counter(N) as unused columns in a
+# view or subquery, we can check to see if the counter gets incremented,
+# and if not that means that the unused column was omitted.
+#
+unset -nocomplain selectH_cnt
+set selectH_cnt 0
+proc selectH_counter {amt} {
+  global selectH_cnt
+  incr selectH_cnt $amt
+  return $selectH_cnt
+}
+db func counter selectH_counter
+
+do_execsql_test 1.2 {
+  SELECT DISTINCT c44 FROM (
+    SELECT c0 AS a, *, counter(1) FROM t1
+    UNION ALL
+    SELECT c1 AS a, *, counter(1) FROM t1
+  ) WHERE c60=60;
+} {44}
+do_test 1.3 {
+  set ::selectH_cnt
+} {0}
+
+do_execsql_test 2.1 {
+  SELECT a FROM (
+    SELECT counter(1) AS cnt, c15 AS a, *, c62 AS b FROM t1
+    UNION ALL
+    SELECT counter(1) AS cnt, c16 AS a, *, c61 AS b FROM t1
+    ORDER BY b
+  );
+} {16 15}
+do_test 2.2 {
+  set ::selectH_cnt
+} {0}
+
+do_execsql_test 3.1 {
+  CREATE VIEW v1 AS
+    SELECT c16 AS a, *, counter(1) AS x FROM t1
+    UNION ALL
+    SELECT c17 AS a, *, counter(1) AS x FROM t1
+    UNION ALL
+    SELECT c18 AS a, *, counter(1) AS x FROM t1
+    UNION ALL
+    SELECT c19 AS a, *, counter(1) AS x FROM t1;
+  SELECT count(*) FROM v1 WHERE c60=60;
+} {4}
+do_test 3.2 {
+  set ::selectH_cnt
+} {0}
+do_execsql_test 3.3 {
+  SELECT count(a) FROM v1 WHERE c60=60;
+} {4}
+do_execsql_test 3.4 {
+  SELECT a FROM v1 WHERE c60=60;
+} {16 17 18 19}
+do_test 3.5 {
+  set ::selectH_cnt
+} {0}
+do_execsql_test 3.6 {
+  SELECT x FROM v1 WHERE c60=60;
+} {1 2 3 4}
+do_test 3.7 {
+  set ::selectH_cnt
+} {4}
+
+# 2023-02-25 dbsqlfuzz bf1d3ed6e0e0dd8766027797d43db40c776d2b15
+#
+do_execsql_test 4.1 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b TEXT);
+  SELECT 1 FROM (SELECT DISTINCT name COLLATE rtrim FROM sqlite_schema
+                 UNION ALL SELECT a FROM t1);
+} {1 1}
+
+do_execsql_test 4.2 {
+  SELECT DISTINCT name COLLATE rtrim FROM sqlite_schema 
+    UNION ALL 
+  SELECT a FROM t1
+} {v1 t1}
+
+#-------------------------------------------------------------------------
+# forum post https://sqlite.org/forum/forumpost/b83c7b2168
+#
+reset_db
+do_execsql_test 5.0 {
+  CREATE TABLE t1 (val1);
+  INSERT INTO t1 VALUES(4);
+  INSERT INTO t1 VALUES(5);
+  CREATE TABLE t2 (val2);
+}
+do_execsql_test 5.1 {
+  SELECT DISTINCT val1 FROM t1 UNION ALL SELECT val2 FROM t2;
+} {
+  4 5
+}
+do_execsql_test 5.2 {
+  SELECT count(1234) FROM (
+    SELECT DISTINCT val1 FROM t1 UNION ALL SELECT val2 FROM t2
+  )
+} {2}
+
+finish_test
diff --git a/test/session.test b/test/session.test
new file mode 100644
index 0000000000000000000000000000000000000000..4fd1ec01844958beb3a36bf913c849cf47da589d
--- /dev/null
+++ b/test/session.test
@@ -0,0 +1,22 @@
+# 2008 June 23
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file runs all rtree related tests.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/permutations.test
+
+ifcapable session {
+  # First run tests with sqlite3_extended_error_codes() set, then
+  # again with it clear.
+  run_test_suite session_eec
+  run_test_suite session
+  run_test_suite session_strm
+}
+
+finish_test
diff --git a/test/sessionfuzz-data1.db b/test/sessionfuzz-data1.db
new file mode 100644
index 0000000000000000000000000000000000000000..df10e10bcd7ad96b512dac036861c4e485aa5268
Binary files /dev/null and b/test/sessionfuzz-data1.db differ
diff --git a/test/sessionfuzz.c b/test/sessionfuzz.c
new file mode 100644
index 0000000000000000000000000000000000000000..c389a5e996950c44f0f47b99f7d196a4b274cf06
--- /dev/null
+++ b/test/sessionfuzz.c
@@ -0,0 +1,1016 @@
+/*
+** 2018-03-01
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** This file implements a program used for fuzz-testing the session
+** module.
+**
+** Usage:
+**
+**      sessionfuzz setup         -- Generate starter test cases
+**      sessionfuzz run FILE ...  -- Run a test fuzz on FILE
+**      sesssiofuzz run SQLAR ... -- Run all test cases in the SQL Archive
+**
+** Compiling:
+**
+**    (1) Have a version of SQLite that supports SQLITE_ENABLE_MEMDB
+**        in the local directory.
+**    (2) Run:
+**
+**          gcc -Wall -O3 -o sessionfuzz sessionfuzz.c -lz
+**
+** Use with AFL (American Fuzzy Lop - http://lcamtuf.coredump.cx/afl/)
+**
+**    (1) ./afl-gcc -O3 -o sessionfuzz sessionfuzz.c -lz
+**    (2) mkdir session-init session-run session-cases
+**    (3) cd session-init; ../sessionfuzz setup; cd ..
+**    (4) ./afl -i session-init -o session-run -- ./sessionfuzz run @@
+**    ... let the previous step run for a while.  Weeks, maybe.
+**    (5) ./afl-cmin -i session-run -o session-cases
+**
+** The afl-cmin command on step (5) writes a minimal set of test cases
+** for coverage into the session-cases directory.  Gather the cases written
+** there into an SQL Archive using a command like this:
+**
+**     sqlite3 session-cases.db -Ac session-cases
+**
+** Then repeat the test using:
+**
+**     ./sessionfuzz run session-cases.db
+*/
+
+/*
+** We will import the entire SQLite source file to make compiling easier
+*/
+#ifdef SQLITE_DEBUG
+#undef SQLITE_DEBUG
+#endif
+
+#ifdef SQLITE_THREADSAFE
+#undef SQLITE_THREADSAFE
+#endif
+
+#define SQLITE_DEBUG 1
+#define SQLITE_THREADSAFE 0
+#undef SQLITE_OMIT_LOAD_EXTENSION
+#define SQLITE_OMIT_LOAD_EXTENSION 0
+#define SQLITE_ENABLE_SESSION 1
+#define SQLITE_ENABLE_PREUPDATE_HOOK 1
+#define SQLITE_ENABLE_DESERIALIZE 1
+#include "sqlite3.c"
+
+/* Code to populate the database */
+static const char zFillSql[] = 
+  "INSERT INTO t1(a,b,c,d) VALUES\n"
+  "  (1,2,3,4),\n"
+  "  (2,3.5,'four',x'556677'),\n"
+  "  (3,null,'xyz',15),\n"
+  "  (4,'bubba',0x80000000,0.0);\n"
+  "INSERT INTO t1 SELECT a+4,c,d,b FROM t1;\n"
+  "INSERT INTO t1 SELECT a+8,d,b,c FROM t1;\n"
+  "INSERT INTO t1 SELECT a+16,d,c,b FROM t1;\n"
+  "INSERT INTO t1 SELECT a+32,b,d,c FROM t1;\n"
+  "INSERT INTO t2 SELECT printf('x%dy',a),b,c FROM t1;\n"
+  "INSERT INTO t3 SELECT a*1.1,b,c FROM t1;\n"
+  "INSERT INTO t4 SELECT a||','||quote(b) FROM t1;\n"
+;
+
+/* A database file created by running the two scripts above */
+static const unsigned char aDbBytes[] = {
+  83, 81, 76,105,116,101, 32,102,111,114,109, 97,116, 32, 51,  0,  2,  0,  1,
+   1,  0, 64, 32, 32,  0,  0,  0, 13,  0,  0,  0, 22,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  5,  0,  0,  0,  4,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  1,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+  13,  0, 46, 32,152, 13,  1,186,  0,  6,  0,176,  0,  1,194,  1, 84,  1,150,
+   0,238,  1, 48,  0,176,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0, 60,  6,  6, 23, 17, 17,  1,101,116, 97, 98,108,101,116,
+  52,116, 52,  7, 67, 82, 69, 65, 84, 69, 32, 84, 65, 66, 76, 69, 32,116, 52,
+  40,122, 32, 80, 82, 73, 77, 65, 82, 89, 32, 75, 69, 89, 41, 32, 87, 73, 84,
+  72, 79, 85, 84, 32, 82, 79, 87, 73, 68, 64,  4,  6, 23, 17, 17,  1,109,116,
+  97, 98,108,101,116, 51,116, 51,  5, 67, 82, 69, 65, 84, 69, 32, 84, 65, 66,
+  76, 69, 32,116, 51, 40,119, 32, 82, 69, 65, 76, 32, 80, 82, 73, 77, 65, 82,
+  89, 32, 75, 69, 89, 32, 78, 79, 84, 32, 78, 85, 76, 76, 44,120, 44,121, 41,
+  34,  5,  5, 23, 55, 17,  1,105,110,100,101,120,115,113,108,105,116,101, 95,
+  97,117,116,111,105,110,100,101,120, 95,116, 51, 95, 49,116, 51,  6, 64,  2,
+   6, 23, 17, 17,  1,109,116, 97, 98,108,101,116, 50,116, 50,  3, 67, 82, 69,
+  65, 84, 69, 32, 84, 65, 66, 76, 69, 32,116, 50, 40,101, 32, 84, 69, 88, 84,
+  32, 80, 82, 73, 77, 65, 82, 89, 32, 75, 69, 89, 32, 78, 79, 84, 32, 78, 85,
+  76, 76, 44,102, 44,103, 41, 34,  3,  5, 23, 55, 17,  1,105,110,100,101,120,
+ 115,113,108,105,116,101, 95, 97,117,116,111,105,110,100,101,120, 95,116, 50,
+  95, 49,116, 50,  4,  0,  0,  0,  8,  0,  0,  0,  0, 60,  1,  6, 23, 17, 17,
+   1,101,116, 97, 98,108,101,116, 49,116, 49,  2, 67, 82, 69, 65, 84, 69, 32,
+  84, 65, 66, 76, 69, 32,116, 49, 40, 97, 32, 73, 78, 84, 69, 71, 69, 82, 32,
+  80, 82, 73, 77, 65, 82, 89, 32, 75, 69, 89, 44, 98, 44, 99, 44,100, 41,  5,
+   0,  0,  0,  2,  1,246,  0,  0,  0,  0, 10,  1,251,  1,246,  1,177,  1,155,
+   1,145,  1,119,  1,109,  1, 87,  1, 76,  1, 50,  1, 40,  1, 18,  1,  7,  0,
+ 237,  0,227,  0,205,  0,195,  0,169,  0,159,  0,137,  0,126,  0,100,  0, 90,
+   0, 68,  0,  0,  0,  0,  0,  0,  0,  0, 20, 26,  5,  0, 21,  7, 18,102,111,
+ 117,114, 64, 12,  0,  0,  0,  0,  0,  0, 85,102,119,  8, 25,  5,  0,  1,  1,
+   1,  3,  2,  4, 24, 24,  5,  0, 23,  7,  5, 98,117, 98, 98, 97,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,128,  0,  0,  0,  9, 23,  5,  0,  0,  1, 19, 15,
+ 120,121,122, 20, 22,  5,  0,  7, 18, 21, 64, 12,  0,  0,  0,  0,  0,  0, 85,
+ 102,119,102,111,117,114,  8, 21,  5,  0,  1,  1,  1,  2,  4,  3, 24, 20,  5,
+   0,  7,  5, 23,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,128,  0,  0,  0, 98,
+ 117, 98, 98, 97,  8, 19,  4,  0,  1, 19, 15,120,121,122, 20, 18,  5,  0, 18,
+  21,  7, 85,102,119,102,111,117,114, 64, 12,  0,  0,  0,  0,  0,  0,  8, 17,
+   5,  0,  1,  1,  1,  4,  3,  2, 24, 16,  5,  0, 23,  5,  7, 98,117, 98, 98,
+  97,  0,  0,128,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  9, 15,  5,  0,
+   0, 19,  1,120,121,122, 15, 20, 14,  5,  0,  7, 21, 18, 64, 12,  0,  0,  0,
+   0,  0,  0,102,111,117,114, 85,102,119,  8, 13,  5,  0,  1,  1,  1,  2,  3,
+   4, 24, 12,  5,  0,  7, 23,  5,  0,  0,  0,  0,  0,  0,  0,  0, 98,117, 98,
+  98, 97,  0,  0,128,  0,  0,  0,  9, 11,  5,  0,  1,  0, 19, 15,120,121,122,
+  20, 10,  5,  0, 18,  7, 21, 85,102,119, 64, 12,  0,  0,  0,  0,  0,  0,102,
+ 111,117,114,  8,  9,  5,  0,  1,  1,  1,  4,  2,  3, 24,  8,  5,  0,  5,  7,
+  23,  0,  0,128,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0, 98,117, 98, 98,
+  97,  8,  7,  4,  0, 19,  1,120,121,122, 15, 20,  6,  5,  0, 21, 18,  7,102,
+ 111,117,114, 85,102,119, 64, 12,  0,  0,  0,  0,  0,  0,  8,  5,  5,  0,  1,
+   1,  1,  3,  4,  2, 24,  4,  5,  0, 23,  5,  7, 98,117, 98, 98, 97,  0,  0,
+ 128,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  9,  3,  5,  0,  0, 19,  1,
+ 120,121,122, 15, 20,  2,  5,  0,  7, 21, 18, 64, 12,  0,  0,  0,  0,  0,  0,
+ 102,111,117,114, 85,102,119,  0,  0,  0,  9, 52,  0,  0,  0,  8, 26,  5,  0,
+   0,  0,  2,  1,246,  0,  0,  0,  0, 13,  1,251,  1,246,  1,181,  1,165,  1,
+ 152,  1,129,  1,118,  1, 97,  1, 87,  1, 64,  1, 52,  1, 30,  1, 17,  0,252,
+   0,240,  0,223,  0,209,  0,185,  0,173,  0,152,  0,141,  0,118,  0,106,  0,
+  84,  0, 72,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0, 10, 27,  3, 21, 19,120,
+  50, 55,121,120,121,122, 20, 26,  4, 21, 21,  7,120, 50, 54,121,102,111,117,
+ 114, 64, 12,  0,  0,  0,  0,  0,  0, 10, 25,  4, 21,  1,  1,120, 50, 53,121,
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+   0,  0,  0, 41,  0,103,  0,  1,250,  1,235,  1,227,  1,218,  1,211,  1,202,
+   1,192,  1,179,  1,172,  1,157,  1,149,  1,141,  1,132,  1,125,  1,116,  1,
+ 106,  1, 93,  1, 86,  1, 74,  1, 63,  1, 47,  1, 40,  1, 31,  1, 16,  1,  8,
+   0,255,  0,248,  0,239,  0,229,  0,216,  0,209,  0,197,  0,186,  0,174,  0,
+ 158,  0,151,  0,136,  0,128,  0,119,  0,112,  0,103,  0, 93,  0,  0,  0,  0,
+  10, 55, 44, 78, 85, 76, 76,  8,  2, 25, 52, 54, 44, 51, 46, 53,  6,  2, 21,
+  52, 53, 44, 50,  8,  2, 25, 52, 52, 44, 48, 46, 48,  7,  2, 23, 52, 51, 44,
+  49, 53, 14,  2, 37, 52, 50, 44, 88, 39, 53, 53, 54, 54, 55, 55, 39,  6,  2,
+  21, 52, 49, 44, 52, 15,  2, 39, 52, 48, 44, 50, 49, 52, 55, 52, 56, 51, 54,
+  52, 56, 11,  2, 31, 52, 44, 39, 98,117, 98, 98, 97, 39, 10,  2, 29, 51, 57,
+  44, 39,120,121,122, 39, 11,  2, 31, 51, 56, 44, 39,102,111,117,114, 39,  6,
+   2, 21, 51, 55, 44, 51, 12,  2, 33, 51, 54, 44, 39, 98,117, 98, 98, 97, 39,
+   9,  2, 27, 51, 53, 44, 78, 85, 76, 76,  8,  2, 25, 51, 52, 44, 51, 46, 53,
+   6,  2, 21, 51, 51, 44, 50,  8,  2, 25, 51, 50, 44, 48, 46, 48,  7,  2, 23,
+  51, 49, 44, 49, 53, 14,  2, 37, 51, 48, 44, 88, 39, 53, 53, 54, 54, 55, 55,
+  39,  8,  2, 25, 51, 44, 78, 85, 76, 76,  6,  2, 21, 50, 57, 44, 52, 15,  2,
+  39, 50, 56, 44, 50, 49, 52, 55, 52, 56, 51, 54, 52, 56, 10,  2, 29, 50, 55,
+  44, 39,120,121,122, 39, 11,  2, 31, 50, 54, 44, 39,102,111,117,114, 39,  6,
+   2, 21, 50, 53, 44, 51, 12,  2, 33, 50, 52, 44, 39, 98,117, 98, 98, 97, 39,
+   9,  2, 27, 50, 51, 44, 78, 85, 76, 76,  8,  2, 25, 50, 50, 44, 51, 46, 53,
+   6,  2, 21, 50, 49, 44, 50,  8,  2, 25, 50, 48, 44, 48, 46, 48,  7,  2, 23,
+  50, 44, 51, 46, 53,  7,  2, 23, 49, 57, 44, 49, 53, 14,  2, 37, 49, 56, 44,
+  88, 39, 53, 53, 54, 54, 55, 55, 39,  6,  2, 21, 49, 55, 44, 52, 12,  2, 33,
+  49, 54, 44, 39, 98,117, 98, 98, 97, 39,  9,  2, 27, 49, 53, 44, 78, 85, 76,
+  76,  8,  2, 25, 49, 52, 44, 51, 46, 53,  6,  2, 21, 49, 51, 44, 50,  8,  2,
+  25, 49, 50, 44, 48, 46, 48,  7,  2, 23, 49, 49, 44, 49, 53, 14,  2, 37, 49,
+  48, 44, 88, 39, 53, 53, 54, 54, 55, 55, 39,  5,  2, 19, 49, 44, 50, 10,  0,
+   0,  0, 22,  1, 32,  0,  1,243,  1,236,  1,230,  1,215,  1,207,  1,198,  1,
+ 191,  1,182,  1,172,  1,159,  1,152,  1,140,  1,129,  1,118,  1,102,  1, 95,
+   1, 80,  1, 72,  1, 63,  1, 53,  1, 38,  1, 32,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  5,  2, 19, 57, 44, 52, 14,  2, 37, 56, 44, 50, 49, 52, 55, 52, 56, 51,
+  54, 52, 56,  9,  2, 27, 55, 44, 39,120,121,122, 39,  8,  2, 25, 54, 52, 44,
+  48, 46, 48,  7,  2, 23, 54, 51, 44, 49, 53, 14,  2, 37, 54, 50, 44, 88, 39,
+  53, 53, 54, 54, 55, 55, 39,  6,  2, 21, 54, 49, 44, 52, 15,  2, 39, 54, 48,
+  44, 50, 49, 52, 55, 52, 56, 51, 54, 52, 56, 10,  2, 29, 54, 44, 39,102,111,
+ 117,114, 39, 10,  2, 29, 53, 57, 44, 39,120,121,122, 39, 11,  2, 31, 53, 56,
+  44, 39,102,111,117,114, 39,  6,  2, 21, 53, 55, 44, 51, 12,  2, 33, 53, 54,
+  44, 39, 98,117, 98, 98, 97, 39,  9,  2, 27, 53, 53, 44, 78, 85, 76, 76,  8,
+   2, 25, 53, 52, 44, 51, 46, 53,  6,  2, 21, 53, 51, 44, 50,  8,  2, 25, 53,
+  50, 44, 48, 46, 48,  7,  2, 23, 53, 49, 44, 49, 53, 14,  2, 37, 53, 48, 44,
+  88, 39, 53, 53, 54, 54, 55, 55, 39,  5,  2, 19, 53, 44, 51,  6,  2, 21, 52,
+  57, 44, 52, 12,  2, 33, 52, 56, 44, 39, 98,117, 98, 98, 97, 39,
+};
+
+/* Help message */
+static const char zHelp[] =
+  "Usage:\n"
+  "  sessionfuzz setup          -- Generate seed files c1.txt, c2.txt, etc.\n"
+  "  sessionfuzz run FILE ...   -- Run against fuzzed changeset FILE\n"
+  "  sessionfuzz run SQLAR ...  -- Run against all files in the SQL Archive\n"
+;
+
+#include <stdio.h>
+#include <string.h>
+#include <assert.h>
+#ifndef OMIT_ZLIB
+#include <zlib.h>
+#endif
+
+/*
+** Implementation of the "sqlar_uncompress(X,SZ)" SQL function
+**
+** Parameter SZ is interpreted as an integer. If it is less than or
+** equal to zero, then this function returns a copy of X. Or, if
+** SZ is equal to the size of X when interpreted as a blob, also
+** return a copy of X. Otherwise, decompress blob X using zlib
+** utility function uncompress() and return the results (another
+** blob).
+*/
+static void sqlarUncompressFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+#ifdef OMIT_ZLIB
+  sqlite3_result_value(context, argv[0]);
+#else
+  uLong nData;
+  uLongf sz;
+
+  assert( argc==2 );
+  sz = sqlite3_value_int(argv[1]);
+
+  if( sz<=0 || sz==(nData = sqlite3_value_bytes(argv[0])) ){
+    sqlite3_result_value(context, argv[0]);
+  }else{
+    const Bytef *pData= sqlite3_value_blob(argv[0]);
+    Bytef *pOut = sqlite3_malloc(sz);
+    if( Z_OK!=uncompress(pOut, &sz, pData, nData) ){
+      sqlite3_result_error(context, "error in uncompress()", -1);
+    }else{
+      sqlite3_result_blob(context, pOut, sz, SQLITE_TRANSIENT);
+    }
+    sqlite3_free(pOut);
+  }
+#endif
+}
+
+
+/* Run a chunk of SQL.  If any errors happen, print an error message
+** and exit.
+*/
+static void runSql(sqlite3 *db, const char *zSql){
+  int rc;
+  char *zErr = 0;
+  rc = sqlite3_exec(db, zSql, 0, 0, &zErr);
+  if( rc || zErr ){
+    fprintf(stderr, "SQL failed: rc=%d zErr=[%s]\n", rc, zErr);
+    fprintf(stderr, "SQL: [%s]\n", zSql);
+    exit(1);
+  }
+}
+
+/*
+** Write buffer to disk
+*/
+static void writeFile(const char *zFilename, const void *pData, int nData){
+  FILE *out;
+  int n;
+  out = fopen(zFilename, "wb");
+  if( out==0 ){
+    fprintf(stderr, "cannot open \"%s\" for writing\n", zFilename);
+    exit(1);
+  }
+  n = (int)fwrite(pData, 1, nData, out);
+  fclose(out);
+  if( n!=nData ){
+    fprintf(stderr, "only wrote %d of %d bytes to \"%s\"\n",n,nData,zFilename);
+    exit(1);
+  }
+}
+
+/*
+** Generate a changeset from session pSess and write it to zFile
+*/
+static void makeChangeset(const char *zFile, sqlite3_session *pSess){
+  void *pChg;
+  int nChg;
+  int rc;
+  rc = sqlite3session_changeset(pSess, &nChg, &pChg);
+  if( rc ){
+    fprintf(stderr, "sqlite3session_changeset() returned %d\n", rc);
+    exit(1);
+  }
+  writeFile(zFile, pChg, nChg);
+  sqlite3_free(pChg);
+}
+
+/*
+** Read a file from disk.  Space to hold the answer is obtained from
+** sqlite3_malloc64().
+*/
+static void readFile(const char *zName, void **ppData, int *pnData){
+  FILE *in = fopen(zName, "rb");
+  long nIn;
+  size_t nRead;
+  char *pBuf;
+  *ppData = 0;
+  *pnData = 0;
+  if( in==0 ){
+    fprintf(stderr, "Cannot open \"%s\" for reading\n", zName);
+    exit(1);
+  }
+  fseek(in, 0, SEEK_END);
+  nIn = ftell(in);
+  rewind(in);
+  pBuf = sqlite3_malloc64( nIn+1 );
+  if( pBuf==0 ){
+    fprintf(stderr, "Failed to malloc %lld bytes\n", (sqlite3_int64)(nIn+1));
+    exit(1);
+  }
+  nRead = fread(pBuf, 1, nIn, in);
+  fclose(in);
+  if( nRead!=(size_t)nIn ){
+    fprintf(stderr, "Read only %d of %d bytes from %s\n", (int)nRead, (int)nIn,
+                    zName);
+    exit(1);
+  }
+  pBuf[nIn] = 0;
+  *pnData = nIn;
+  *ppData = pBuf;
+}
+
+/*
+** The conflict callback
+*/
+static int conflictCall(
+  void *NotUsed,
+  int eConflict,
+  sqlite3_changeset_iter *p
+){
+  (void)NotUsed;
+  (void)p;
+  return SQLITE_CHANGESET_OMIT;
+}
+
+/*
+** Reset the database file
+*/
+static void db_reset(sqlite3 *db){
+  unsigned char *pData;
+  int nData;
+  int rc;
+
+  nData = sizeof(aDbBytes);
+  pData = sqlite3_malloc64( nData );
+  if( pData==0 ){
+    fprintf(stderr, "could not allocate %d bytes\n", nData);
+    exit(1);
+  }
+  memcpy(pData, aDbBytes, nData);
+  rc = sqlite3_deserialize(db, 0, pData, nData, nData,
+     SQLITE_DESERIALIZE_FREEONCLOSE | SQLITE_DESERIALIZE_RESIZEABLE);
+  if( rc ){
+    fprintf(stderr, "sqlite3_deserialize() failed with %d: %s\n",
+            rc, sqlite3_errmsg(db));
+    exit(1);
+  }
+}
+
+/*
+** Given a full file pathname, return a pointer to the tail.
+** Example:
+** 
+**   input:    /home/drh/sqlite/abc.db
+**   output:   abc.db
+*/
+static const char *fileTail(const char *z){
+  const char *zOut = z;
+  while( z[0] ){
+    if( z[0]=='/' && z[1]!=0 ) zOut = &z[1];
+    z++;
+  }
+  return zOut;
+}
+
+int main(int argc, char **argv){
+  const char *zCmd;
+  sqlite3 *db;
+  int rc;
+  sqlite3_session *pSess;
+  sqlite3_stmt *pStmt;
+  void *pChgset;
+  int nChgset;
+  int bVerbose = 0;
+
+  if( argc<2 ){
+    fprintf(stderr, "%s", zHelp);
+    exit(1);
+  }
+  rc = sqlite3_open_v2(":memory:",&db,
+                       SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE, "memdb");
+  if( rc ){
+    fprintf(stderr, "Failed to open :memory: database: %s\n",
+            sqlite3_errmsg(db));
+    exit(1);
+  }
+  db_reset(db);
+  zCmd = argv[1];
+  if( strcmp(zCmd, "setup")==0 ){
+    if( argc!=2 ){
+      fprintf(stdout, "Wrong number of arguments.\n%s", zHelp);
+      exit(1);
+    }
+    runSql(db, zFillSql);
+    rc = sqlite3session_create(db, "main", &pSess);
+    if( rc ){
+      fprintf(stderr, "sqlite3session_create() returns %d\n", rc);
+      exit(1);
+    }
+    rc = sqlite3session_attach(pSess, 0);
+    if( rc ){
+      fprintf(stderr, "sqlite3session_attach(db,0) returns %d\n", rc);
+      exit(1);
+    }
+    runSql(db, "INSERT INTO t4(z) VALUES('');");
+    makeChangeset("c1.txt", pSess);
+    runSql(db, 
+      "UPDATE t1 SET b=c, c=b WHERE a IN (5,7);\n"
+      "DELETE FROM t2 WHERE rowid IN (8,2);\n"
+      "INSERT OR IGNORE INTO t4 SELECT b FROM t1 WHERE b IS TRUE LIMIT 2;");
+    makeChangeset("c2.txt", pSess);
+    runSql(db, "UPDATE t3 SET x=y, y=NULL WHERE rowid IN (1,3);");
+    makeChangeset("c3.txt", pSess);
+    sqlite3session_delete(pSess);
+  }else
+  if( strcmp(zCmd, "run")==0 ){
+    int i;
+    if( argc<3 ){
+      fprintf(stdout, "Wrong number of arguments.\n%s", zHelp);
+      exit(1);
+    }
+    for(i=2; i<argc; i++){
+      if( strcmp(argv[i],"-v")==0 ){
+        bVerbose = 1;
+        continue;
+      }
+      readFile(argv[i], &pChgset, &nChgset);
+      if( nChgset >= 512 
+       && memcmp(pChgset, "SQLite format 3", 16)==0 
+      ){
+        sqlite3 *db2;
+        sqlite3_stmt *pStmt2;
+        int nCase = 0;
+        /* This file is an SQL Archive containing many changesets */
+        if( !bVerbose ){ printf("%s: ", fileTail(argv[i])); fflush(stdout); }
+        sqlite3_open_v2(":memory:", &db2, 
+                        SQLITE_OPEN_CREATE|SQLITE_OPEN_READWRITE, "memdb");
+        sqlite3_deserialize(db2, 0, pChgset, nChgset, nChgset,
+              SQLITE_DESERIALIZE_READONLY | SQLITE_DESERIALIZE_FREEONCLOSE);
+        sqlite3_create_function(db2, "sqlar_uncompress", 2, SQLITE_UTF8, 0,
+                                 sqlarUncompressFunc, 0, 0);        
+        rc = sqlite3_prepare_v2(db2, "SELECT name, sqlar_uncompress(data,sz)"
+                                     "  FROM sqlar", -1, &pStmt2, 0);
+        if( rc ){
+          fprintf(stderr, "SQL error: %s\n", sqlite3_errmsg(db2));
+          exit(1);
+        }
+        while( SQLITE_ROW==sqlite3_step(pStmt2) ){
+          if( bVerbose ){
+            printf("%s/%s:", fileTail(argv[i]), sqlite3_column_text(pStmt2,0));
+            fflush(stdout);
+          }
+          runSql(db, "BEGIN");
+          pChgset = (unsigned char*)sqlite3_column_blob(pStmt2, 1);
+          nChgset = sqlite3_column_bytes(pStmt2, 1);
+          rc = sqlite3changeset_apply(db, nChgset, pChgset, 0, conflictCall, 0);
+          if( bVerbose ){
+            printf(" Ok.  rc=%d\n", rc);
+            fflush(stdout);
+          }
+          runSql(db, "ROLLBACK");
+          nCase++;
+        }
+        sqlite3_finalize(pStmt2);
+        sqlite3_close(db2);
+        if( bVerbose ) printf("%s: ", fileTail(argv[i]));
+        printf(" %d cases, 0 crashes\n", nCase);
+        fflush(stdout);
+      }else{
+        /* The named file is just an ordinary changeset */
+        printf("%s:", fileTail(argv[i]));
+        fflush(stdout);
+        runSql(db, "BEGIN");
+        rc = sqlite3changeset_apply(db, nChgset, pChgset, 0, conflictCall, 0);
+        printf(" %d\n", rc);
+        fflush(stdout);
+        runSql(db, "ROLLBACK");
+        sqlite3_free(pChgset);
+      }
+    }
+  }else
+  {
+    fprintf(stderr, "%s", zHelp);
+    exit(1);
+  }
+  rc = sqlite3_prepare_v2(db, "PRAGMA integrity_check;", -1, &pStmt, 0);
+  if( rc ){
+    fprintf(stderr, "SQL error: %s\n", sqlite3_errmsg(db));
+    exit(1);
+  }
+  if( sqlite3_step(pStmt)!=SQLITE_ROW
+   || strcmp((const char*)sqlite3_column_text(pStmt,0),"ok")!=0
+  ){
+    fprintf(stderr, "Integrity check failed!\n");
+    do{
+      fprintf(stderr, "%s\n", sqlite3_column_text(pStmt,0));
+    }while( sqlite3_step(pStmt)==SQLITE_ROW );
+  }
+  sqlite3_finalize(pStmt);
+  sqlite3_close(db);
+  if( sqlite3_memory_used()>0 ){
+    fprintf(stderr, "memory leak of %lld bytes\n",
+         sqlite3_memory_used());
+    exit(1);
+  }
+  return 0;
+}
diff --git a/test/shared.test b/test/shared.test
new file mode 100644
index 0000000000000000000000000000000000000000..a0cd0a66969aae055f48505f470f9ab1a838f3e3
--- /dev/null
+++ b/test/shared.test
@@ -0,0 +1,1184 @@
+# 2005 December 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# $Id: shared.test,v 1.36 2009/03/16 13:19:36 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+db close
+
+# These tests cannot be run without the ATTACH command.
+#
+ifcapable !shared_cache||!attach {
+  finish_test
+  return
+}
+
+set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
+
+foreach av [list 0 1] {
+
+# Open the database connection and execute the auto-vacuum pragma
+forcedelete test.db
+sqlite3 db test.db
+
+ifcapable autovacuum {
+  do_test shared-[expr $av+1].1.0 {
+    execsql "pragma auto_vacuum=$::av"
+    execsql {pragma auto_vacuum}
+  } "$av"
+} else {
+  if {$av} {
+    db close
+    break
+  }
+}
+
+# if we're using proxy locks, we use 2 filedescriptors for a db
+# that is open but NOT yet locked, after a lock is taken we'll have 3, 
+# normally sqlite uses 1 (proxy locking adds the conch and the local lock)
+set using_proxy 0
+foreach {name value} [array get env SQLITE_FORCE_PROXY_LOCKING] {
+  set using_proxy $value
+}
+set extrafds_prelock 0
+set extrafds_postlock 0
+if {$using_proxy>0} {
+  set extrafds_prelock 1
+  set extrafds_postlock 2
+} 
+
+# $av is currently 0 if this loop iteration is to test with auto-vacuum turned
+# off, and 1 if it is turned on. Increment it so that (1 -> no auto-vacuum) 
+# and (2 -> auto-vacuum). The sole reason for this is so that it looks nicer
+# when we use this variable as part of test-case names.
+#
+incr av
+
+# Test organization:
+#
+# shared-1.*: Simple test to verify basic sanity of table level locking when
+#             two connections share a pager cache.
+# shared-2.*: Test that a read transaction can co-exist with a 
+#             write-transaction, including a simple test to ensure the 
+#             external locking protocol is still working.
+# shared-3.*: Simple test of read-uncommitted mode.
+# shared-4.*: Check that the schema is locked and unlocked correctly.
+# shared-5.*: Test that creating/dropping schema items works when databases
+#             are attached in different orders to different handles.
+# shared-6.*: Locking, UNION ALL queries and sub-queries.
+# shared-7.*: Autovacuum and shared-cache.
+# shared-8.*: Tests related to the text encoding of shared-cache databases.
+# shared-9.*: TEMP triggers and shared-cache databases.
+# shared-10.*: Tests of sqlite3_close().
+# shared-11.*: Test transaction locking.
+#
+
+do_test shared-$av.1.1 {
+  # Open a second database on the file test.db. It should use the same pager
+  # cache and schema as the original connection. Verify that only 1 file is 
+  # opened.
+  sqlite3 db2 test.db
+  set ::sqlite_open_file_count
+  expr $sqlite_open_file_count-$extrafds_postlock
+} {1}
+do_test shared-$av.1.2 {
+  # Add a table and a single row of data via the first connection. 
+  # Ensure that the second connection can see them.
+  execsql {
+    CREATE TABLE abc(a, b, c);
+    INSERT INTO abc VALUES(1, 2, 3);
+  } db
+  execsql {
+    SELECT * FROM abc;
+  } db2
+} {1 2 3}
+do_test shared-$av.1.3 {
+  # Have the first connection begin a transaction and obtain a read-lock
+  # on table abc. This should not prevent the second connection from 
+  # querying abc.
+  execsql {
+    BEGIN;
+    SELECT * FROM abc;
+  }
+  execsql {
+    SELECT * FROM abc;
+  } db2
+} {1 2 3}
+do_test shared-$av.1.4 {
+  # Try to insert a row into abc via connection 2. This should fail because
+  # of the read-lock connection 1 is holding on table abc (obtained in the
+  # previous test case).
+  catchsql {
+    INSERT INTO abc VALUES(4, 5, 6);
+  } db2
+} {1 {database table is locked: abc}}
+do_test shared-$av.1.5 {
+  # Using connection 2 (the one without the open transaction), try to create
+  # a new table. This should fail because of the open read transaction 
+  # held by connection 1.
+  catchsql {
+    CREATE TABLE def(d, e, f);
+  } db2
+} {1 {database table is locked: sqlite_master}}
+do_test shared-$av.1.6 {
+  # Upgrade connection 1's transaction to a write transaction. Create
+  # a new table - def - and insert a row into it. Because the connection 1
+  # transaction modifies the schema, it should not be possible for 
+  # connection 2 to access the database at all until the connection 1 
+  # has finished the transaction.
+  execsql {
+    CREATE TABLE def(d, e, f);
+    INSERT INTO def VALUES('IV', 'V', 'VI');
+  }
+} {}
+do_test shared-$av.1.7 {
+  # Read from the sqlite_master table with connection 1 (inside the 
+  # transaction). Then test that we can not do this with connection 2. This
+  # is because of the schema-modified lock established by connection 1 
+  # in the previous test case.
+  execsql {
+    SELECT * FROM sqlite_master;
+  }
+  catchsql {
+    SELECT * FROM sqlite_master;
+  } db2
+} {1 {database schema is locked: main}}
+do_test shared-$av.1.8 {
+  # Commit the connection 1 transaction.
+  execsql {
+    COMMIT;
+  }
+} {}
+
+do_test shared-$av.2.1 {
+  # Open connection db3 to the database.
+  if {$::tcl_platform(platform)=="unix"} {
+    sqlite3 db3 "file:test.db?cache=private" -uri 1
+  } else {
+    sqlite3 db3 TEST.DB
+  }
+  set ::sqlite_open_file_count
+  expr $sqlite_open_file_count-($extrafds_prelock+$extrafds_postlock)
+} {2}
+do_test shared-$av.2.2 {
+  # Start read transactions on db and db2 (the shared pager cache). Ensure
+  # db3 cannot write to the database.
+  execsql {
+    BEGIN;
+    SELECT * FROM abc;
+  }
+  execsql {
+    BEGIN;
+    SELECT * FROM abc;
+  } db2
+  catchsql {
+    INSERT INTO abc VALUES(1, 2, 3);
+  } db2
+} {1 {database table is locked: abc}}
+do_test shared-$av.2.3 {
+  # Turn db's transaction into a write-transaction. db3 should still be
+  # able to read from table def (but will not see the new row). Connection
+  # db2 should not be able to read def (because of the write-lock).
+
+# Todo: The failed "INSERT INTO abc ..." statement in the above test
+# has started a write-transaction on db2 (should this be so?). This 
+# would prevent connection db from starting a write-transaction. So roll the
+# db2 transaction back and replace it with a new read transaction.
+  execsql {
+    ROLLBACK;
+    BEGIN;
+    SELECT * FROM abc;
+  } db2
+
+  execsql {
+    INSERT INTO def VALUES('VII', 'VIII', 'IX');
+  }
+  concat [
+    catchsql { SELECT * FROM def; } db3
+  ] [
+    catchsql { SELECT * FROM def; } db2
+  ]
+} {0 {IV V VI} 1 {database table is locked: def}}
+do_test shared-$av.2.4 {
+  # Commit the open transaction on db. db2 still holds a read-transaction.
+  # This should prevent db3 from writing to the database, but not from 
+  # reading.
+  execsql {
+    COMMIT;
+  }
+  concat [
+    catchsql { SELECT * FROM def; } db3
+  ] [
+    catchsql { INSERT INTO def VALUES('X', 'XI', 'XII'); } db3
+  ]
+} {0 {IV V VI VII VIII IX} 1 {database is locked}}
+
+catchsql COMMIT db2
+
+do_test shared-$av.3.1.1 {
+  # This test case starts a linear scan of table 'seq' using a 
+  # read-uncommitted connection. In the middle of the scan, rows are added
+  # to the end of the seq table (ahead of the current cursor position).
+  # The uncommitted rows should be included in the results of the scan.
+  execsql "
+    CREATE TABLE seq(i PRIMARY KEY, x);
+    INSERT INTO seq VALUES(1, '[string repeat X 500]');
+    INSERT INTO seq VALUES(2, '[string repeat X 500]');
+  "
+  execsql {SELECT * FROM sqlite_master} db2
+  execsql {PRAGMA read_uncommitted = 1} db2
+
+  set ret [list]
+  db2 eval {SELECT i FROM seq ORDER BY i} {
+    if {$i < 4} {
+      set max [execsql {SELECT max(i) FROM seq}]
+      db eval {
+        INSERT INTO seq SELECT i + :max, x FROM seq;
+      }
+    }
+    lappend ret $i
+  }
+  set ret
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16}
+do_test shared-$av.3.1.2 {
+  # Another linear scan through table seq using a read-uncommitted connection.
+  # This time, delete each row as it is read. Should not affect the results of
+  # the scan, but the table should be empty after the scan is concluded 
+  # (test 3.1.3 verifies this).
+  set ret [list]
+  db2 eval {SELECT i FROM seq} {
+    db eval {DELETE FROM seq WHERE i = :i}
+    lappend ret $i
+  }
+  set ret
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16}
+do_test shared-$av.3.1.3 {
+  execsql {
+    SELECT * FROM seq;
+  }
+} {}
+
+catch {db close}
+catch {db2 close}
+catch {db3 close}
+
+#--------------------------------------------------------------------------
+# Tests shared-4.* test that the schema locking rules are applied 
+# correctly. i.e.:
+#
+# 1. All transactions require a read-lock on the schemas of databases they
+#    access.
+# 2. Transactions that modify a database schema require a write-lock on that
+#    schema.
+# 3. It is not possible to compile a statement while another handle has a 
+#    write-lock on the schema.
+#
+
+# Open two database handles db and db2. Each has a single attach database
+# (as well as main):
+#
+#     db.main   ->   ./test.db
+#     db.test2  ->   ./test2.db
+#     db2.main  ->   ./test2.db
+#     db2.test  ->   ./test.db
+#
+forcedelete test.db
+forcedelete test2.db
+forcedelete test2.db-journal
+sqlite3 db  test.db
+sqlite3 db2 test2.db
+do_test shared-$av.4.1.1 {
+  set sqlite_open_file_count
+  expr $sqlite_open_file_count-($extrafds_prelock*2)
+} {2}
+do_test shared-$av.4.1.2 {
+  execsql {ATTACH 'test2.db' AS test2}
+  set sqlite_open_file_count
+  expr $sqlite_open_file_count-($extrafds_postlock*2)
+} {2}
+do_test shared-$av.4.1.3 {
+  execsql {ATTACH 'test.db' AS test} db2
+  set sqlite_open_file_count
+  expr $sqlite_open_file_count-($extrafds_postlock*2)
+} {2}
+
+# Sanity check: Create a table in ./test.db via handle db, and test that handle
+# db2 can "see" the new table immediately. A handle using a seperate pager
+# cache would have to reload the database schema before this were possible.
+#
+do_test shared-$av.4.2.1 {
+  execsql {
+    CREATE TABLE abc(a, b, c);
+    CREATE TABLE def(d, e, f);
+    INSERT INTO abc VALUES('i', 'ii', 'iii');
+    INSERT INTO def VALUES('I', 'II', 'III');
+  }
+} {}
+do_test shared-$av.4.2.2 {
+  execsql {
+    SELECT * FROM test.abc;
+  } db2
+} {i ii iii}
+
+# Open a read-transaction and read from table abc via handle 2. Check that
+# handle 1 can read table abc. Check that handle 1 cannot modify table abc
+# or the database schema. Then check that handle 1 can modify table def.
+#
+do_test shared-$av.4.3.1 {
+  execsql {
+    BEGIN;
+    SELECT * FROM test.abc;
+  } db2
+} {i ii iii}
+do_test shared-$av.4.3.2 {
+  catchsql {
+    INSERT INTO abc VALUES('iv', 'v', 'vi');
+  }
+} {1 {database table is locked: abc}}
+do_test shared-$av.4.3.3 {
+  catchsql {
+    CREATE TABLE ghi(g, h, i);
+  }
+} {1 {database table is locked: sqlite_master}}
+do_test shared-$av.4.3.3 {
+  catchsql {
+    INSERT INTO def VALUES('IV', 'V', 'VI');
+  }
+} {0 {}}
+do_test shared-$av.4.3.4 {
+  # Cleanup: commit the transaction opened by db2.
+  execsql {
+    COMMIT
+  } db2
+} {}
+
+# Open a write-transaction using handle 1 and modify the database schema.
+# Then try to execute a compiled statement to read from the same 
+# database via handle 2 (fails to get the lock on sqlite_master). Also
+# try to compile a read of the same database using handle 2 (also fails).
+# Finally, compile a read of the other database using handle 2. This
+# should also fail.
+#
+ifcapable compound {
+  do_test shared-$av.4.4.1.2 {
+    # Sanity check 1: Check that the schema is what we think it is when viewed
+    # via handle 1.
+    execsql {
+      CREATE TABLE test2.ghi(g, h, i);
+      SELECT 'test.db:'||name FROM sqlite_master 
+      UNION ALL
+      SELECT 'test2.db:'||name FROM test2.sqlite_master;
+    }
+  } {test.db:abc test.db:def test2.db:ghi}
+  do_test shared-$av.4.4.1.2 {
+    # Sanity check 2: Check that the schema is what we think it is when viewed
+    # via handle 2.
+    execsql {
+      SELECT 'test2.db:'||name FROM sqlite_master 
+      UNION ALL
+      SELECT 'test.db:'||name FROM test.sqlite_master;
+    } db2
+  } {test2.db:ghi test.db:abc test.db:def}
+}
+
+do_test shared-$av.4.4.2 {
+  set ::DB2 [sqlite3_connection_pointer db2]
+  set sql {SELECT * FROM abc}
+  set ::STMT1 [sqlite3_prepare $::DB2 $sql -1 DUMMY]
+  execsql {
+    BEGIN;
+    CREATE TABLE jkl(j, k, l);
+  }
+  sqlite3_step $::STMT1
+} {SQLITE_ERROR}
+do_test shared-$av.4.4.3 {
+  sqlite3_finalize $::STMT1
+} {SQLITE_LOCKED}
+do_test shared-$av.4.4.4 {
+  set rc [catch {
+    set ::STMT1 [sqlite3_prepare $::DB2 $sql -1 DUMMY]
+  } msg]
+  list $rc $msg
+} {1 {(6) database schema is locked: test}}
+do_test shared-$av.4.4.5 {
+  set rc [catch {
+    set ::STMT1 [sqlite3_prepare $::DB2 "SELECT * FROM ghi" -1 DUMMY]
+  } msg]
+  list $rc $msg
+} {1 {(6) database schema is locked: test}}
+
+
+catch {db2 close}
+catch {db close}
+
+#--------------------------------------------------------------------------
+# Tests shared-5.* 
+#
+foreach db [list test.db test1.db test2.db test3.db] {
+  forcedelete $db ${db}-journal
+}
+do_test shared-$av.5.1.1 {
+  sqlite3 db1 test.db
+  sqlite3 db2 test.db
+  execsql {
+    ATTACH 'test1.db' AS test1;
+    ATTACH 'test2.db' AS test2;
+    ATTACH 'test3.db' AS test3;
+  } db1
+  execsql {
+    ATTACH 'test3.db' AS test3;
+    ATTACH 'test2.db' AS test2;
+    ATTACH 'test1.db' AS test1;
+  } db2
+} {}
+do_test shared-$av.5.1.2 {
+  execsql {
+    CREATE TABLE test1.t1(a, b);
+    CREATE INDEX test1.i1 ON t1(a, b);
+  } db1
+} {}
+ifcapable view {
+  do_test shared-$av.5.1.3 {
+    execsql {
+      CREATE VIEW test1.v1 AS SELECT * FROM t1;
+    } db1
+  } {}
+}
+ifcapable trigger {
+  do_test shared-$av.5.1.4 {
+    execsql {
+      CREATE TRIGGER test1.trig1 AFTER INSERT ON t1 BEGIN
+        INSERT INTO t1 VALUES(new.a, new.b);
+      END;
+    } db1
+  } {}
+}
+do_test shared-$av.5.1.5 {
+  execsql {
+    DROP INDEX i1;
+  } db2
+} {}
+ifcapable view {
+  do_test shared-$av.5.1.6 {
+    execsql {
+      DROP VIEW v1;
+    } db2
+  } {}
+}
+ifcapable trigger {
+  do_test shared-$av.5.1.7 {
+    execsql {
+      DROP TRIGGER trig1;
+    } db2
+  } {}
+}
+do_test shared-$av.5.1.8 {
+  execsql {
+    DROP TABLE t1;
+  } db2
+} {}
+ifcapable compound {
+  do_test shared-$av.5.1.9 {
+    execsql {
+      SELECT * FROM sqlite_master UNION ALL SELECT * FROM test1.sqlite_master
+    } db1
+  } {}
+}
+
+#--------------------------------------------------------------------------
+# Tests shared-6.* test that a query obtains all the read-locks it needs
+# before starting execution of the query. This means that there is no chance
+# some rows of data will be returned before a lock fails and SQLITE_LOCK
+# is returned.
+#
+do_test shared-$av.6.1.1 {
+  execsql {
+    CREATE TABLE t1(a, b);
+    CREATE TABLE t2(a, b);
+    INSERT INTO t1 VALUES(1, 2);
+    INSERT INTO t2 VALUES(3, 4);
+  } db1
+} {}
+ifcapable compound {
+  do_test shared-$av.6.1.2 {
+    execsql {
+      SELECT * FROM t1 UNION ALL SELECT * FROM t2;
+    } db2
+  } {1 2 3 4}
+}
+do_test shared-$av.6.1.3 {
+  # Establish a write lock on table t2 via connection db2. Then make a 
+  # UNION all query using connection db1 that first accesses t1, followed 
+  # by t2. If the locks are grabbed at the start of the statement (as 
+  # they should be), no rows are returned. If (as was previously the case)
+  # they are grabbed as the tables are accessed, the t1 rows will be 
+  # returned before the query fails.
+  #
+  execsql {
+    BEGIN;
+    INSERT INTO t2 VALUES(5, 6);
+  } db2
+  set ret [list]
+  catch {
+    db1 eval {SELECT * FROM t1 UNION ALL SELECT * FROM t2} {
+      lappend ret $a $b
+    }
+  }
+  set ret
+} {}
+do_test shared-$av.6.1.4 {
+  execsql {
+    COMMIT;
+    BEGIN;
+    INSERT INTO t1 VALUES(7, 8);
+  } db2
+  set ret [list]
+  catch {
+    db1 eval {
+      SELECT (CASE WHEN a>4 THEN (SELECT a FROM t1) ELSE 0 END) AS d FROM t2;
+    } {
+      lappend ret $d
+    }
+  }
+  set ret
+} {}
+
+catch {db1 close}
+catch {db2 close}
+foreach f [list test.db test2.db] {
+  forcedelete $f ${f}-journal
+}
+
+#--------------------------------------------------------------------------
+# Tests shared-7.* test auto-vacuum does not invalidate cursors from
+# other shared-cache users when it reorganizes the database on 
+# COMMIT.
+#
+do_test shared-$av.7.1 {
+  # This test case sets up a test database in auto-vacuum mode consisting 
+  # of two tables, t1 and t2. Both have a single index. Table t1 is 
+  # populated first (so consists of pages toward the start of the db file), 
+  # t2 second (pages toward the end of the file). 
+  sqlite3 db test.db
+  sqlite3 db2 test.db
+  execsql {
+    BEGIN;
+    CREATE TABLE t1(a PRIMARY KEY, b);
+    CREATE TABLE t2(a PRIMARY KEY, b);
+  }
+  set ::contents {}
+  for {set i 0} {$i < 100} {incr i} {
+    set a [string repeat "$i " 20]
+    set b [string repeat "$i " 20]
+    db eval {
+      INSERT INTO t1 VALUES(:a, :b);
+    }
+    lappend ::contents [list [expr $i+1] $a $b]
+  }
+  execsql {
+    INSERT INTO t2 SELECT * FROM t1;
+    COMMIT;
+  }
+} {}
+do_test shared-$av.7.2 {
+  # This test case deletes the contents of table t1 (the one at the start of
+  # the file) while many cursors are open on table t2 and its index. All of
+  # the non-root pages will be moved from the end to the start of the file
+  # when the DELETE is committed - this test verifies that moving the pages
+  # does not disturb the open cursors.
+  #
+
+  proc lockrow {db tbl oids body} {
+    set ret [list]
+    db eval "SELECT oid AS i, a, b FROM $tbl ORDER BY a" {
+      if {$i==[lindex $oids 0]} {
+        set noids [lrange $oids 1 end]
+        if {[llength $noids]==0} {
+          set subret [eval $body]
+        } else {
+          set subret [lockrow $db $tbl $noids $body]
+        }
+      }
+      lappend ret [list $i $a $b]
+    }
+    return [linsert $subret 0 $ret]
+  }
+  proc locktblrows {db tbl body} {
+    set oids [db eval "SELECT oid FROM $tbl"]
+    lockrow $db $tbl $oids $body
+  }
+
+  set scans [locktblrows db t2 {
+    execsql {
+      DELETE FROM t1;
+    } db2
+  }]
+  set error 0
+
+  # Test that each SELECT query returned the expected contents of t2.
+  foreach s $scans {
+    if {[lsort -integer -index 0 $s]!=$::contents} {
+      set error 1
+    }
+  }
+  set error
+} {0}
+
+catch {db close}
+catch {db2 close}
+unset -nocomplain contents
+
+#--------------------------------------------------------------------------
+# The following tests try to trick the shared-cache code into assuming
+# the wrong encoding for a database.
+#
+forcedelete test.db test.db-journal
+ifcapable utf16 {
+  do_test shared-$av.8.1.1 {
+    sqlite3 db test.db
+    execsql {
+      PRAGMA encoding = 'UTF-16';
+      SELECT * FROM sqlite_master;
+    }
+  } {}
+  do_test shared-$av.8.1.2 {
+    string range [execsql {PRAGMA encoding;}] 0 end-2
+  } {UTF-16}
+
+  do_test shared-$av.8.1.3 {
+    sqlite3 db2 test.db
+    execsql {
+      PRAGMA encoding = 'UTF-8';
+      CREATE TABLE abc(a, b, c);
+    } db2
+  } {}
+  do_test shared-$av.8.1.4 {
+    execsql {
+      SELECT * FROM sqlite_master;
+    }
+  } "table abc abc [expr $AUTOVACUUM?3:2] {CREATE TABLE abc(a, b, c)}"
+  do_test shared-$av.8.1.5 {
+    db2 close
+    execsql {
+      PRAGMA encoding;
+    }
+  } {UTF-8}
+
+  forcedelete test2.db test2.db-journal
+  do_test shared-$av.8.2.1 {
+    execsql {
+      ATTACH 'test2.db' AS aux;
+      SELECT * FROM aux.sqlite_master;
+    }
+  } {}
+  do_test shared-$av.8.2.2 {
+    sqlite3 db2 test2.db
+    execsql {
+      PRAGMA encoding = 'UTF-16';
+      CREATE TABLE def(d, e, f);
+    } db2
+    string range [execsql {PRAGMA encoding;} db2] 0 end-2
+  } {UTF-16}
+
+  catch {db close}
+  catch {db2 close}
+  forcedelete test.db test2.db
+
+  do_test shared-$av.8.3.2 {
+    sqlite3 db test.db
+    execsql { CREATE TABLE def(d, e, f) }
+    execsql { PRAGMA encoding }
+  } {UTF-8}
+  do_test shared-$av.8.3.3 {
+    set zDb16 "[encoding convertto unicode test.db]\x00\x00"
+    set db16 [sqlite3_open16 $zDb16 {}]
+
+    set stmt [sqlite3_prepare $db16 "SELECT sql FROM sqlite_master" -1 DUMMY]
+    sqlite3_step $stmt
+    set sql [sqlite3_column_text $stmt 0]
+    sqlite3_finalize $stmt
+    set sql
+  } {CREATE TABLE def(d, e, f)}
+  do_test shared-$av.8.3.4 {
+    set stmt [sqlite3_prepare $db16 "PRAGMA encoding" -1 DUMMY]
+    sqlite3_step $stmt
+    set enc [sqlite3_column_text $stmt 0]
+    sqlite3_finalize $stmt
+    set enc
+  } {UTF-8}
+
+  sqlite3_close $db16
+
+# Bug #2547 is causing this to fail.
+if 0 {
+  do_test shared-$av.8.2.3 {
+    catchsql {
+      SELECT * FROM aux.sqlite_master;
+    }
+  } {1 {attached databases must use the same text encoding as main database}}
+}
+}
+
+catch {db close}
+catch {db2 close}
+forcedelete test.db test2.db
+
+#---------------------------------------------------------------------------
+# The following tests - shared-9.* - test interactions between TEMP triggers
+# and shared-schemas.
+#
+ifcapable trigger&&tempdb {
+
+do_test shared-$av.9.1 {
+  sqlite3 db test.db
+  sqlite3 db2 test.db
+  execsql {
+    CREATE TABLE abc(a, b, c);
+    CREATE TABLE abc_mirror(a, b, c);
+    CREATE TEMP TRIGGER BEFORE INSERT ON abc BEGIN 
+      INSERT INTO abc_mirror(a, b, c) VALUES(new.a, new.b, new.c);
+    END;
+    INSERT INTO abc VALUES(1, 2, 3);
+    SELECT * FROM abc_mirror;
+  }
+} {1 2 3}
+do_test shared-$av.9.2 {
+  execsql {
+    INSERT INTO abc VALUES(4, 5, 6);
+    SELECT * FROM abc_mirror;
+  } db2
+} {1 2 3}
+do_test shared-$av.9.3 {
+  db close
+  db2 close
+} {}
+
+} ; # End shared-9.*
+
+#---------------------------------------------------------------------------
+# The following tests - shared-10.* - test that the library behaves 
+# correctly when a connection to a shared-cache is closed. 
+#
+do_test shared-$av.10.1 {
+  # Create a small sample database with two connections to it (db and db2).
+  forcedelete test.db
+  sqlite3 db  test.db
+  sqlite3 db2 test.db
+  execsql {
+    CREATE TABLE ab(a PRIMARY KEY, b);
+    CREATE TABLE de(d PRIMARY KEY, e);
+    INSERT INTO ab VALUES('Chiang Mai', 100000);
+    INSERT INTO ab VALUES('Bangkok', 8000000);
+    INSERT INTO de VALUES('Ubon', 120000);
+    INSERT INTO de VALUES('Khon Kaen', 200000);
+  }
+} {}
+do_test shared-$av.10.2 {
+  # Open a read-transaction with the first connection, a write-transaction
+  # with the second.
+  execsql {
+    BEGIN;
+    SELECT * FROM ab;
+  }
+  execsql {
+    BEGIN;
+    INSERT INTO de VALUES('Pataya', 30000);
+  } db2
+} {}
+do_test shared-$av.10.3 {
+  # An external connection should be able to read the database, but not
+  # prepare a write operation.
+  if {$::tcl_platform(platform)=="unix"} {
+    sqlite3 db3 "file:test.db?cache=private" -uri 1
+  } else {
+    sqlite3 db3 TEST.DB
+  }
+  execsql {
+    SELECT * FROM ab;
+  } db3
+  catchsql {
+    BEGIN;
+    INSERT INTO de VALUES('Pataya', 30000);
+  } db3
+} {1 {database is locked}}
+do_test shared-$av.10.4 {
+  # Close the connection with the write-transaction open
+  db2 close
+} {}
+do_test shared-$av.10.5 {
+  # Test that the db2 transaction has been automatically rolled back.
+  # If it has not the ('Pataya', 30000) entry will still be in the table.
+  execsql {
+    SELECT * FROM de;
+  }
+} {Ubon 120000 {Khon Kaen} 200000}
+do_test shared-$av.10.5 {
+  # Closing db2 should have dropped the shared-cache back to a read-lock.
+  # So db3 should be able to prepare a write...
+  catchsql {INSERT INTO de VALUES('Pataya', 30000);} db3
+} {0 {}}
+do_test shared-$av.10.6 {
+  # ... but not commit it.
+  catchsql {COMMIT} db3
+} {1 {database is locked}}
+do_test shared-$av.10.7 {
+  # Commit the (read-only) db transaction. Check via db3 to make sure the 
+  # contents of table "de" are still as they should be.
+  execsql {
+    COMMIT;
+  }
+  execsql {
+    SELECT * FROM de;
+  } db3
+} {Ubon 120000 {Khon Kaen} 200000 Pataya 30000}
+do_test shared-$av.10.9 {
+  # Commit the external transaction.
+  catchsql {COMMIT} db3
+} {0 {}}
+integrity_check shared-$av.10.10
+do_test shared-$av.10.11 {
+  db close
+  db3 close
+} {}
+
+do_test shared-$av.11.1 {
+  forcedelete test.db
+  sqlite3 db  test.db
+  sqlite3 db2 test.db
+  execsql {
+    CREATE TABLE abc(a, b, c);
+    CREATE TABLE abc2(a, b, c);
+    BEGIN;
+    INSERT INTO abc VALUES(1, 2, 3);
+  }
+} {}
+do_test shared-$av.11.2 {
+  catchsql {BEGIN;} db2
+  catchsql {SELECT * FROM abc;} db2
+} {1 {database table is locked: abc}}
+do_test shared-$av.11.3 {
+  catchsql {BEGIN} db2
+} {1 {cannot start a transaction within a transaction}}
+do_test shared-$av.11.4 {
+  catchsql {SELECT * FROM abc2;} db2
+} {0 {}}
+do_test shared-$av.11.5 {
+  catchsql {INSERT INTO abc2 VALUES(1, 2, 3);} db2
+} {1 {database table is locked}}
+do_test shared-$av.11.6 {
+  catchsql {SELECT * FROM abc2}
+} {0 {}}
+do_test shared-$av.11.6 {
+  execsql {
+    ROLLBACK;
+    PRAGMA read_uncommitted = 1;
+  } db2
+} {}
+do_test shared-$av.11.7 {
+  execsql {
+    INSERT INTO abc2 VALUES(4, 5, 6);
+    INSERT INTO abc2 VALUES(7, 8, 9);
+  }
+} {}
+do_test shared-$av.11.8 {
+  set res [list]
+  db2 eval {
+    SELECT abc.a as I, abc2.a as II FROM abc, abc2;
+  } {
+    execsql {
+      DELETE FROM abc WHERE 1;
+    }
+    lappend res $I $II
+  }
+  set res
+} {1 4 {} 7}
+if {[llength [info command sqlite3_shared_cache_report]]==1} {
+  ifcapable curdir {
+    do_test shared-$av.11.9 {
+      string tolower [sqlite3_shared_cache_report]
+    } [string tolower [list [file nativename [file normalize test.db]] 2]]
+  }
+}
+
+do_test shared-$av.11.11 {
+  db close
+  db2 close
+} {}
+
+# This tests that if it is impossible to free any pages, SQLite will
+# exceed the limit set by PRAGMA cache_size.
+forcedelete test.db test.db-journal
+sqlite3 db test.db 
+ifcapable pager_pragmas {
+  do_test shared-$av.12.1 {
+    execsql {
+      PRAGMA cache_size = 10;
+      PRAGMA cache_size;
+    }
+  } {10}
+}
+do_test shared-$av.12.2 {
+  set ::db_handles [list]
+  for {set i 1} {$i < 15} {incr i} {
+    lappend ::db_handles db$i
+    sqlite3 db$i test.db 
+    execsql "CREATE TABLE db${i}(a, b, c)" db$i 
+    execsql "INSERT INTO db${i} VALUES(1, 2, 3)"
+  }
+} {}
+proc nested_select {handles} {
+  [lindex $handles 0] eval "SELECT * FROM [lindex $handles 0]" {
+    lappend ::res $a $b $c
+    if {[llength $handles]>1} {
+      nested_select [lrange $handles 1 end]
+    }
+  }
+}
+do_test shared-$av.12.3 {
+  set ::res [list]
+  nested_select $::db_handles
+  set ::res
+} [string range [string repeat "1 2 3 " [llength $::db_handles]] 0 end-1]
+
+do_test shared-$av.12.X {
+  db close
+  foreach h $::db_handles { 
+    $h close
+  }
+} {}
+
+# Internally, locks are acquired on shared B-Tree structures in the order
+# that the structures appear in the virtual memory address space. This
+# test case attempts to cause the order of the structures in memory 
+# to be different from the order in which they are attached to a given
+# database handle. This covers an extra line or two.
+#
+do_test shared-$av.13.1 {
+  forcedelete test2.db test3.db test4.db test5.db
+  sqlite3 db :memory:
+  execsql {
+    ATTACH 'test2.db' AS aux2;
+    ATTACH 'test3.db' AS aux3;
+    ATTACH 'test4.db' AS aux4;
+    ATTACH 'test5.db' AS aux5;
+    DETACH aux2;
+    DETACH aux3;
+    DETACH aux4;
+    ATTACH 'test2.db' AS aux2;
+    ATTACH 'test3.db' AS aux3;
+    ATTACH 'test4.db' AS aux4;
+  }
+} {}
+do_test shared-$av.13.2 {
+  execsql {
+    CREATE TABLE t1(a, b, c);
+    CREATE TABLE aux2.t2(a, b, c);
+    CREATE TABLE aux3.t3(a, b, c);
+    CREATE TABLE aux4.t4(a, b, c);
+    CREATE TABLE aux5.t5(a, b, c);
+    SELECT count(*) FROM 
+      aux2.sqlite_master, 
+      aux3.sqlite_master, 
+      aux4.sqlite_master, 
+      aux5.sqlite_master
+  }
+} {1}
+do_test shared-$av.13.3 {
+  db close
+} {}
+
+# Test that nothing horrible happens if a connection to a shared B-Tree 
+# structure is closed while some other connection has an open cursor.
+#
+do_test shared-$av.14.1 {
+  sqlite3 db test.db
+  sqlite3 db2 test.db
+  execsql {SELECT name FROM sqlite_master}
+} {db1 db2 db3 db4 db5 db6 db7 db8 db9 db10 db11 db12 db13 db14}
+do_test shared-$av.14.2 {
+  set res [list]
+  db eval {SELECT name FROM sqlite_master} {
+    if {$name eq "db7"} {
+      db2 close
+    }
+    lappend res $name
+  }
+  set res
+} {db1 db2 db3 db4 db5 db6 db7 db8 db9 db10 db11 db12 db13 db14}
+do_test shared-$av.14.3 {
+  db close
+} {}
+
+# Populate a database schema using connection [db]. Then drop it using
+# [db2]. This is to try to find any points where shared-schema elements
+# are allocated using the lookaside buffer of [db].
+# 
+# Mutexes are enabled for this test as that activates a couple of useful
+# assert() statements in the C code.
+#
+do_test shared-$av-15.1 {
+  forcedelete test.db
+  sqlite3 db test.db -fullmutex 1
+  sqlite3 db2 test.db -fullmutex 1
+  execsql {
+    CREATE TABLE t1(a, b, c);
+    CREATE INDEX i1 ON t1(a, b);
+    CREATE VIEW v1 AS SELECT * FROM t1; 
+    CREATE VIEW v2 AS SELECT * FROM t1, v1 
+                      WHERE t1.c=v1.c GROUP BY t1.a ORDER BY v1.b; 
+    CREATE TRIGGER tr1 AFTER INSERT ON t1 
+      WHEN new.a!=1
+    BEGIN
+      DELETE FROM t1 WHERE a=5;
+      INSERT INTO t1 VALUES(1, 2, 3);
+      UPDATE t1 SET c=c+1;
+    END;
+
+    INSERT INTO t1 VALUES(5, 6, 7);
+    INSERT INTO t1 VALUES(8, 9, 10);
+    INSERT INTO t1 VALUES(11, 12, 13);
+    ANALYZE;
+    SELECT * FROM t1;
+  }
+} {1 2 6 8 9 12 1 2 5 11 12 14 1 2 4}
+do_test shared-$av-15.2 {
+  execsql { DROP TABLE t1 } db2
+} {}
+db close
+db2 close
+
+# Shared cache on a :memory: database.  This only works for URI filenames.
+#
+do_test shared-$av-16.1 {
+  sqlite3 db1 file::memory: -uri 1
+  sqlite3 db2 file::memory: -uri 1
+  db1 eval {
+    CREATE TABLE t1(x); INSERT INTO t1 VALUES(1),(2),(3);
+  }
+  db2 eval {
+    SELECT x FROM t1 ORDER BY x;
+  }
+} {1 2 3}
+do_test shared-$av-16.2 {
+  db2 eval {
+    INSERT INTO t1 VALUES(99);
+    DELETE FROM t1 WHERE x=2;
+  }
+  db1 eval {
+    SELECT x FROM t1 ORDER BY x;
+  }
+} {1 3 99}
+
+# Verify that there is no cache sharing ordinary (non-URI) filenames are
+# used.
+#
+do_test shared-$av-16.3 {
+  db1 close
+  db2 close
+  sqlite3 db1 :memory:
+  sqlite3 db2 :memory:
+  db1 eval {
+    CREATE TABLE t1(x); INSERT INTO t1 VALUES(4),(5),(6);
+  }
+  catchsql {
+    SELECT * FROM t1;
+  } db2
+} {1 {no such table: t1}}
+
+# Shared cache on named memory databases.
+#
+do_test shared-$av-16.4 {
+  db1 close
+  db2 close
+  forcedelete test.db test.db-wal test.db-journal
+  sqlite3 db1 file:test.db?mode=memory -uri 1
+  sqlite3 db2 file:test.db?mode=memory -uri 1
+  db1 eval {
+    CREATE TABLE t1(x); INSERT INTO t1 VALUES(1),(2),(3);
+  }
+  db2 eval {
+    SELECT x FROM t1 ORDER BY x;
+  }
+} {1 2 3}
+do_test shared-$av-16.5 {
+  db2 eval {
+    INSERT INTO t1 VALUES(99);
+    DELETE FROM t1 WHERE x=2;
+  }
+  db1 eval {
+    SELECT x FROM t1 ORDER BY x;
+  }
+} {1 3 99}
+do_test shared-$av-16.6 {
+  file exists test.db
+} {0}  ;# Verify that the database is in-memory
+
+# Shared cache on named memory databases with different names.
+#
+do_test shared-$av-16.7 {
+  db1 close
+  db2 close
+  forcedelete test1.db test2.db
+  sqlite3 db1 file:test1.db?mode=memory -uri 1
+  sqlite3 db2 file:test2.db?mode=memory -uri 1
+  db1 eval {
+    CREATE TABLE t1(x); INSERT INTO t1 VALUES(1),(2),(3);
+  }
+  catchsql {
+    SELECT x FROM t1 ORDER BY x;
+  } db2
+} {1 {no such table: t1}}
+do_test shared-$av-16.8 {
+  file exists test1.db
+} {0}  ;# Verify that the database is in-memory
+
+# Shared cache on named memory databases attached to readonly connections.
+#
+if {![sqlite3 -has-codec]} {
+  do_test shared-$av-16.8.1 {
+    db1 close
+    db2 close
+  
+    sqlite3 db test1.db
+    db eval { 
+      CREATE TABLE yy(a, b);
+      INSERT INTO yy VALUES(77, 88);
+    }
+    db close
+  
+    sqlite3 db1 test1.db -uri 1 -readonly 1
+    sqlite3 db2 test2.db -uri 1 
+  
+    db1 eval { 
+      ATTACH 'file:mem?mode=memory&cache=shared' AS shared; 
+      CREATE TABLE shared.xx(a, b);
+      INSERT INTO xx VALUES(55, 66);
+    }
+    db2 eval { 
+      ATTACH 'file:mem?mode=memory&cache=shared' AS shared;
+      SELECT * FROM xx;
+    }
+  } {55 66}
+  
+  do_test shared-$av-16.8.2 { db1 eval { SELECT * FROM yy } } {77 88}
+  do_test shared-$av-16.8.3 { 
+    list [catch {db1 eval { INSERT INTO yy VALUES(1, 2) }} msg] $msg
+  } {1 {attempt to write a readonly database}}
+  
+  db1 close
+  db2 close
+}
+
+}  ;# end of autovacuum on/off loop
+
+sqlite3_enable_shared_cache $::enable_shared_cache
+finish_test
diff --git a/test/shared2.test b/test/shared2.test
new file mode 100644
index 0000000000000000000000000000000000000000..5bde8cfad84371b5a1c6346e93844b1ddce55650
--- /dev/null
+++ b/test/shared2.test
@@ -0,0 +1,139 @@
+# 2005 January 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# $Id: shared2.test,v 1.8 2009/06/05 17:09:12 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+source $testdir/malloc_common.tcl
+db close
+
+ifcapable !shared_cache {
+  finish_test
+  return
+}
+set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
+
+# Test that if we delete all rows from a table any read-uncommitted 
+# cursors are correctly invalidated. Test on both table and index btrees.
+do_test shared2-1.1 {
+  sqlite3 db1 test.db
+  sqlite3 db2 test.db
+
+  # Set up some data. Table "numbers" has 64 rows after this block 
+  # is executed.
+  execsql {
+    BEGIN;
+    CREATE TABLE numbers(a PRIMARY KEY, b);
+    INSERT INTO numbers(oid) VALUES(NULL);
+    INSERT INTO numbers(oid) SELECT NULL FROM numbers;
+    INSERT INTO numbers(oid) SELECT NULL FROM numbers;
+    INSERT INTO numbers(oid) SELECT NULL FROM numbers;
+    INSERT INTO numbers(oid) SELECT NULL FROM numbers;
+    INSERT INTO numbers(oid) SELECT NULL FROM numbers;
+    INSERT INTO numbers(oid) SELECT NULL FROM numbers;
+    UPDATE numbers set a = oid, b = 'abcdefghijklmnopqrstuvwxyz0123456789';
+    COMMIT;
+  } db1
+} {}
+do_test shared2-1.2 {
+  # Put connection 2 in read-uncommitted mode and start a SELECT on table 
+  # 'numbers'. Half way through the SELECT, use connection 1 to delete the
+  # contents of this table.
+  execsql {
+    pragma read_uncommitted = 1;
+  } db2
+  set count [execsql {SELECT count(*) FROM numbers} db2]
+  db2 eval {SELECT a FROM numbers ORDER BY oid} {
+    if {$a==32} {
+      execsql {
+        BEGIN;
+        DELETE FROM numbers;
+      } db1
+    }
+  }
+  list $a $count
+} {32 64}
+do_test shared2-1.3 {
+  # Same test as 1.2, except scan using the index this time.
+  execsql {
+    ROLLBACK;
+  } db1
+  set count [execsql {SELECT count(*) FROM numbers} db2]
+  db2 eval {SELECT a, b FROM numbers ORDER BY a} {
+    if {$a==32} {
+      execsql {
+        DELETE FROM numbers;
+      } db1
+    }
+  }
+  list $a $count
+} {32 64}
+
+
+db1 close
+db2 close
+
+do_test shared2-3.2 {
+  sqlite3_enable_shared_cache 1
+} {1}
+
+forcedelete test.db
+
+sqlite3 db test.db
+do_test shared2-4.1 {
+  execsql {
+    CREATE TABLE t0(a, b);
+    CREATE TABLE t1(a, b DEFAULT 'hello world');
+  }
+} {}
+db close
+
+sqlite3 db test.db
+sqlite3 db2 test.db
+
+do_test shared2-4.2 {
+  execsql { SELECT a, b FROM t0 } db
+  execsql { INSERT INTO t1(a) VALUES(1) } db2
+} {}
+
+do_test shared2-4.3 {
+  db2 close
+  db close
+} {}
+
+# At one point, this was causing a crash.
+#
+do_test shared2-5.1 {
+  sqlite3 db test.db
+  sqlite3 db2 test.db
+  execsql { CREATE TABLE t2(a, b, c) }
+  
+  # The following statement would crash when attempting to sqlite3_free()
+  # a pointer allocated from a lookaside buffer.
+  execsql { CREATE INDEX i1 ON t2(a) } db2
+} {}
+
+db close
+db2 close
+
+# The following test verifies that shared-cache mode does not automatically
+# turn on exclusive-locking mode for some reason.
+do_multiclient_test {tn} {
+  sql1 { CREATE TABLE t1(a, b) }
+  sql2 { CREATE TABLE t2(a, b) }
+  do_test shared2-6.$tn.1 { sql1 { SELECT * FROM t2 } } {}
+  do_test shared2-6.$tn.2 { sql2 { SELECT * FROM t1 } } {}
+}
+
+sqlite3_enable_shared_cache $::enable_shared_cache
+finish_test
diff --git a/test/shared3.test b/test/shared3.test
new file mode 100644
index 0000000000000000000000000000000000000000..e313069990dd33d85a06fed9a8c18e2cfedb419d
--- /dev/null
+++ b/test/shared3.test
@@ -0,0 +1,142 @@
+# 2005 January 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# $Id: shared3.test,v 1.4 2008/08/20 14:49:25 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix shared3
+db close
+
+ifcapable !shared_cache {
+  finish_test
+  return
+}
+set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
+
+# Ticket #1824
+#
+do_test shared3-1.1 {
+  forcedelete test.db test.db-journal
+  sqlite3 db1 test.db
+  db1 eval {
+    PRAGMA encoding=UTF16;
+    CREATE TABLE t1(x,y);
+    INSERT INTO t1 VALUES('abc','This is a test string');
+  }
+  db1 close
+  sqlite3 db1 test.db
+  db1 eval {SELECT * FROM t1}
+} {abc {This is a test string}}
+do_test shared3-1.2 {
+  sqlite3 db2 test.db
+  db2 eval {SELECT y FROM t1 WHERE x='abc'}
+} {{This is a test string}}
+
+db1 close
+db2 close
+
+do_test shared3-2.1 {
+  sqlite3 db1 test.db
+  execsql {
+    PRAGMA main.cache_size = 10;
+  } db1
+} {}
+do_test shared3-2.2 {
+  execsql { PRAGMA main.cache_size } db1
+} {10}
+do_test shared3-2.3 {
+  sqlite3 db2 test.db
+  execsql { PRAGMA main.cache_size } db1
+} {10}
+do_test shared3-2.4 {
+  execsql { PRAGMA main.cache_size } db2
+} {10}
+do_test shared3-2.5 {
+  execsql { PRAGMA main.cache_size } db1
+} {10}
+
+# The cache-size should now be 10 pages. However at one point there was
+# a bug that caused the cache size to return to the default value when
+# a second connection was opened on the shared-cache (as happened in
+# test case shared3-2.3 above). The goal of the following tests is to
+# ensure that the cache-size really is 10 pages.
+#
+#if {$::tcl_platform(platform)=="unix"} {
+#  set alternative_name ./test.db
+#} else {
+#  set alternative_name TEST.DB
+#}
+do_test shared3-2.6 {
+  #sqlite3 db3 $alternative_name
+  sqlite3 db3 "file:./test.db?cache=private" -uri 1
+  catchsql {select count(*) from sqlite_master} db3
+} {0 1}
+do_test shared3-2.7 {
+  execsql {
+    BEGIN;
+    INSERT INTO t1 VALUES(10, randomblob(5000))
+  } db1
+  catchsql {select count(*) from sqlite_master} db3
+} {0 1}
+do_test shared3-2.8 {
+  db3 close
+  execsql {
+    INSERT INTO t1 VALUES(10, randomblob(10000))
+  } db1
+
+  # If the pager-cache is really still limited to 10 pages, then the INSERT
+  # statement above should have caused the pager to grab an exclusive lock
+  # on the database file so that the cache could be spilled.
+  #
+  catch { sqlite3 db3 "file:./test.db?cache=private" -uri 1 }
+  catchsql {select count(*) from sqlite_master} db3
+} {1 {database is locked}}
+
+db1 close
+db2 close
+db3 close
+
+#-------------------------------------------------------------------------
+# At one point this was causing a faulty assert to fail.
+#
+forcedelete test.db
+sqlite3 db test.db
+sqlite3 db2 test.db
+do_execsql_test 3.1 {
+  PRAGMA auto_vacuum = 2;
+  CREATE TABLE t1(x, y);
+  INSERT INTO t1 VALUES(randomblob(500), randomblob(500));
+  INSERT INTO t1 SELECT randomblob(500), randomblob(500) FROM t1;
+  INSERT INTO t1 SELECT randomblob(500), randomblob(500) FROM t1;
+  INSERT INTO t1 SELECT randomblob(500), randomblob(500) FROM t1;
+  INSERT INTO t1 SELECT randomblob(500), randomblob(500) FROM t1;
+  INSERT INTO t1 SELECT randomblob(500), randomblob(500) FROM t1;
+  INSERT INTO t1 SELECT randomblob(500), randomblob(500) FROM t1;
+  INSERT INTO t1 SELECT randomblob(500), randomblob(500) FROM t1;
+}
+do_test 3.2 {
+  execsql { SELECT count(*) FROM sqlite_master } db2
+} {1}
+do_execsql_test 3.3 {
+  BEGIN;
+    DELETE FROM t1 WHERE 1;
+    PRAGMA incremental_vacuum;
+} {}
+do_test 3.4 {
+  execsql { SELECT count(*) FROM sqlite_master } db2
+} {1}
+do_test 3.5 {
+  execsql { COMMIT }
+} {}
+
+sqlite3_enable_shared_cache $::enable_shared_cache
+finish_test
diff --git a/test/shared4.test b/test/shared4.test
new file mode 100644
index 0000000000000000000000000000000000000000..88959db42d767600cc6b74965619f47a2222f587
--- /dev/null
+++ b/test/shared4.test
@@ -0,0 +1,236 @@
+# 2008 July 14
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test the btree mutex protocol for shared cache mode.
+#
+# $Id: shared4.test,v 1.2 2008/08/04 03:51:24 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+db close
+
+# This script is only valid if we are running shared-cache mode in a
+# threadsafe-capable database engine.
+#
+ifcapable !shared_cache||!compound {
+  finish_test
+  return
+}
+set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
+
+# Prepare multiple databases in shared cache mode.
+#
+do_test shared4-1.1 {
+  forcedelete test1.db test1.db-journal
+  forcedelete test2.db test2.db-journal
+  forcedelete test3.db test3.db-journal
+  forcedelete test4.db test4.db-journal
+  sqlite3 db1 test1.db
+  sqlite3 db2 test2.db
+  sqlite3 db3 test3.db
+  sqlite3 db4 test4.db
+  db1 eval {
+    CREATE TABLE t1(a);
+    INSERT INTO t1 VALUES(111);
+  }
+  db2 eval {
+    CREATE TABLE t2(b);
+    INSERT INTO t2 VALUES(222);
+  }
+  db3 eval {
+    CREATE TABLE t3(c);
+    INSERT INTO t3 VALUES(333);
+  }
+  db4 eval {
+    CREATE TABLE t4(d);
+    INSERT INTO t4 VALUES(444);
+  }
+  db1 eval {
+    ATTACH DATABASE 'test2.db' AS two;
+    ATTACH DATABASE 'test3.db' AS three;
+    ATTACH DATABASE 'test4.db' AS four;
+  }
+  db2 eval {
+    ATTACH DATABASE 'test4.db' AS four;
+    ATTACH DATABASE 'test3.db' AS three;
+    ATTACH DATABASE 'test1.db' AS one;
+  }
+  db3 eval {
+    ATTACH DATABASE 'test1.db' AS one;
+    ATTACH DATABASE 'test2.db' AS two;
+    ATTACH DATABASE 'test4.db' AS four;
+  }
+  db4 eval {
+    ATTACH DATABASE 'test3.db' AS three;
+    ATTACH DATABASE 'test2.db' AS two;
+    ATTACH DATABASE 'test1.db' AS one;
+  }
+  db1 eval {
+     SELECT a FROM t1 UNION ALL
+     SELECT b FROM t2 UNION ALL
+     SELECT c FROM t3 UNION ALL
+     SELECT d FROM t4;
+  }
+} {111 222 333 444}
+do_test shared4-1.2 {
+  db2 eval {
+     SELECT a FROM t1 UNION ALL
+     SELECT b FROM t2 UNION ALL
+     SELECT d FROM t4 UNION ALL
+     SELECT c FROM t3;
+  }
+} {111 222 444 333}
+do_test shared4-1.3 {
+  db3 eval {
+     SELECT a FROM t1 UNION ALL
+     SELECT c FROM t3 UNION ALL
+     SELECT b FROM t2 UNION ALL
+     SELECT d FROM t4;
+  }
+} {111 333 222 444}
+do_test shared4-1.4 {
+  db4 eval {
+     SELECT a FROM t1 UNION ALL
+     SELECT c FROM t3 UNION ALL
+     SELECT d FROM t4 UNION ALL
+     SELECT b FROM t2;
+  }
+} {111 333 444 222}
+do_test shared4-1.5 {
+  db3 eval {
+     SELECT a FROM t1 UNION ALL
+     SELECT d FROM t4 UNION ALL
+     SELECT b FROM t2 UNION ALL
+     SELECT c FROM t3;
+  }
+} {111 444 222 333}
+do_test shared4-1.6 {
+  db4 eval {
+     SELECT a FROM t1 UNION ALL
+     SELECT d FROM t4 UNION ALL
+     SELECT c FROM t3 UNION ALL
+     SELECT b FROM t2;
+  }
+} {111 444 333 222}
+do_test shared4-1.7 {
+  db1 eval {
+     SELECT b FROM t2 UNION ALL
+     SELECT a FROM t1 UNION ALL
+     SELECT c FROM t3 UNION ALL
+     SELECT d FROM t4;
+  }
+} {222 111 333 444}
+do_test shared4-1.8 {
+  db2 eval {
+     SELECT b FROM t2 UNION ALL
+     SELECT a FROM t1 UNION ALL
+     SELECT d FROM t4 UNION ALL
+     SELECT c FROM t3;
+  }
+} {222 111 444 333}
+do_test shared4-1.9 {
+  db3 eval {
+     SELECT b FROM t2 UNION ALL
+     SELECT c FROM t3 UNION ALL
+     SELECT a FROM t1 UNION ALL
+     SELECT d FROM t4;
+  }
+} {222 333 111 444}
+do_test shared4-1.10 {
+  db4 eval {
+     SELECT b FROM t2 UNION ALL
+     SELECT c FROM t3 UNION ALL
+     SELECT d FROM t4 UNION ALL
+     SELECT a FROM t1;
+  }
+} {222 333 444 111}
+do_test shared4-1.11 {
+  db1 eval {
+     SELECT c FROM t3 UNION ALL
+     SELECT a FROM t1 UNION ALL
+     SELECT b FROM t2 UNION ALL
+     SELECT d FROM t4;
+  }
+} {333 111 222 444}
+do_test shared4-1.12 {
+  db2 eval {
+     SELECT c FROM t3 UNION ALL
+     SELECT a FROM t1 UNION ALL
+     SELECT d FROM t4 UNION ALL
+     SELECT b FROM t2;
+  }
+} {333 111 444 222}
+
+do_test shared4-2.1 {
+  db1 eval {
+    UPDATE t1 SET a=a+1000;
+    UPDATE t2 SET b=b+2000;
+    UPDATE t3 SET c=c+3000;
+    UPDATE t4 SET d=d+4000;
+  }
+  db2 eval {
+    UPDATE t1 SET a=a+10000;
+    UPDATE t2 SET b=b+20000;
+    UPDATE t3 SET c=c+30000;
+    UPDATE t4 SET d=d+40000;
+  }
+  db3 eval {
+    UPDATE t1 SET a=a+100000;
+    UPDATE t2 SET b=b+200000;
+    UPDATE t3 SET c=c+300000;
+    UPDATE t4 SET d=d+400000;
+  }
+  db4 eval {
+    UPDATE t1 SET a=a+1000000;
+    UPDATE t2 SET b=b+2000000;
+    UPDATE t3 SET c=c+3000000;
+    UPDATE t4 SET d=d+4000000;
+  }
+  db1 eval {
+     SELECT a FROM t1 UNION ALL
+     SELECT b FROM t2 UNION ALL
+     SELECT c FROM t3 UNION ALL
+     SELECT d FROM t4;
+  }
+} {1111111 2222222 3333333 4444444}
+do_test shared4-2.2 {
+  db2 eval {
+     SELECT a FROM t1 UNION ALL
+     SELECT b FROM t2 UNION ALL
+     SELECT d FROM t4 UNION ALL
+     SELECT c FROM t3;
+  }
+} {1111111 2222222 4444444 3333333}
+do_test shared4-2.3 {
+  db3 eval {
+     SELECT a FROM t1 UNION ALL
+     SELECT c FROM t3 UNION ALL
+     SELECT b FROM t2 UNION ALL
+     SELECT d FROM t4;
+  }
+} {1111111 3333333 2222222 4444444}
+do_test shared4-2.4 {
+  db4 eval {
+     SELECT a FROM t1 UNION ALL
+     SELECT c FROM t3 UNION ALL
+     SELECT d FROM t4 UNION ALL
+     SELECT b FROM t2;
+  }
+} {1111111 3333333 4444444 2222222}
+
+
+db1 close
+db2 close
+db3 close
+db4 close
+
+sqlite3_enable_shared_cache $::enable_shared_cache
+finish_test
diff --git a/test/shared6.test b/test/shared6.test
new file mode 100644
index 0000000000000000000000000000000000000000..499cbb0eb572237136ccc18f9d090ea6a4b75931
--- /dev/null
+++ b/test/shared6.test
@@ -0,0 +1,255 @@
+# 2009 April 01
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# $Id: shared6.test,v 1.4 2009/06/05 17:09:12 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable !shared_cache { finish_test ; return }
+
+do_test shared6-1.1.1 {
+  execsql {
+    CREATE TABLE t1(a, b);
+    CREATE TABLE t2(c, d);
+    CREATE TABLE t3(e, f);
+  }
+  db close
+} {}
+do_test shared6-1.1.2 {
+  set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
+  sqlite3_enable_shared_cache
+} {1}
+
+do_test shared6-1.1.3 {
+  sqlite3 db1 test.db
+  sqlite3 db2 test.db
+} {}
+
+# Exclusive shared-cache locks. Test the following:
+#
+#   1.2.1: If [db1] has an exclusive lock, [db2] cannot read.
+#   1.2.2: If [db1] has an exclusive lock, [db1] can read.
+#   1.2.3: If [db1] has a non-exclusive write-lock, [db2] can read.
+# 
+do_test shared6-1.2.1 {
+  execsql { SELECT * FROM t1 } db2    ;# Cache a compiled statement
+  execsql { BEGIN EXCLUSIVE } db1
+  catchsql { SELECT * FROM t1 } db2   ;# Execute the cached compiled statement
+} {1 {database table is locked}}
+do_test shared6-1.2.2 {
+  execsql { SELECT * FROM t1 } db1
+} {}
+do_test shared6-1.2.3 {
+  execsql {
+    COMMIT;
+    BEGIN;
+    INSERT INTO t2 VALUES(3, 4);
+  } db1
+  execsql { SELECT * FROM t1 } db2
+} {}
+do_test shared6-1.2.X {
+  execsql { COMMIT } db1
+} {}
+
+# Regular shared-cache locks. Verify the following:
+#
+#   1.3.1: If [db1] has a write-lock on t1, [db1] can read from t1.
+#   1.3.2: If [db1] has a write-lock on t1, [db2] can read from t2.
+#   1.3.3: If [db1] has a write-lock on t1, [db2] cannot read from t1.
+#   1.3.4: If [db1] has a write-lock on t1, [db2] cannot write to t1.
+#   1.3.5: If [db1] has a read-lock on t1, [db2] can read from t1.
+#   1.3.6: If [db1] has a read-lock on t1, [db2] cannot write to t1.
+#
+do_test shared6-1.3.1 {
+  execsql {
+    BEGIN;
+    INSERT INTO t1 VALUES(1, 2);
+  } db1
+  execsql { SELECT * FROM t1 } db1
+} {1 2}
+do_test shared6-1.3.2 {
+  execsql { SELECT * FROM t2 } db2
+} {3 4}
+do_test shared6-1.3.3 {
+  catchsql { SELECT * FROM t1 } db2
+} {1 {database table is locked: t1}}
+do_test shared6-1.3.4 {
+  catchsql { INSERT INTO t2 VALUES(1, 2) } db2
+} {1 {database table is locked}}
+do_test shared6-1.3.5 {
+  execsql {
+    COMMIT;
+    BEGIN;
+    SELECT * FROM t1;
+  } db1
+  execsql { SELECT * FROM t1 } db2
+} {1 2}
+do_test shared6-1.3.5 {
+  catchsql { INSERT INTO t1 VALUES(5, 6) } db2
+} {1 {database table is locked: t1}}
+do_test shared6-1.3.X {
+  execsql { COMMIT } db1
+} {}
+
+# Read-uncommitted mode.
+#
+# For these tests, connection [db2] is in read-uncommitted mode.
+#
+#   1.4.1: If [db1] has a write-lock on t1, [db2] can still read from t1.
+#   1.4.2: If [db1] has a write-lock on the db schema (sqlite_master table), 
+#          [db2] cannot read from the schema.
+#   1.4.3: If [db1] has a read-lock on t1, [db2] cannot write to t1.
+#
+do_test shared6-1.4.1 {
+  execsql { PRAGMA read_uncommitted = 1 } db2
+  execsql {
+    BEGIN;
+    INSERT INTO t1 VALUES(5, 6);
+  } db1
+  execsql { SELECT * FROM t1 } db2
+} {1 2 5 6}
+do_test shared6-1.4.2 {
+  execsql { CREATE TABLE t4(a, b) } db1
+  catchsql { SELECT * FROM t1 } db2
+} {1 {database table is locked}}
+do_test shared6-1.4.3 {
+  execsql {
+    COMMIT;
+    BEGIN;
+    SELECT * FROM t1;
+  } db1
+  catchsql { INSERT INTO t1 VALUES(7, 8) } db2
+} {1 {database table is locked: t1}}
+
+do_test shared6-1.X {
+  db1 close
+  db2 close
+} {}
+
+#-------------------------------------------------------------------------
+# The following tests - shared6-2.* - test that two database connections
+# that connect to the same file using different VFS implementations do
+# not share a cache.
+#
+if {$::tcl_platform(platform) eq "unix"} {
+  do_test shared6-2.1 {
+    sqlite3 db1 test.db -vfs unix
+    sqlite3 db2 test.db -vfs unix
+    sqlite3 db3 test.db -vfs unix-none
+    sqlite3 db4 test.db -vfs unix-none
+  } {}
+
+  do_test shared6-2.2 {
+    execsql { BEGIN; INSERT INTO t1 VALUES(9, 10); } db1
+    catchsql { SELECT * FROM t1 } db2
+  } {1 {database table is locked: t1}}
+  do_test shared6-2.3 {
+    execsql { SELECT * FROM t1 } db3
+  } {1 2 5 6}
+
+  do_test shared6-2.3 {
+    execsql { COMMIT } db1
+    execsql { BEGIN; INSERT INTO t1 VALUES(11, 12); } db3
+    catchsql { SELECT * FROM t1 } db4
+  } {1 {database table is locked: t1}}
+
+  do_test shared6-2.4 {
+    execsql { SELECT * FROM t1 } db1
+  } {1 2 5 6 9 10}
+
+  do_test shared6-2.5 {
+    execsql { COMMIT } db3
+  } {}
+
+  do_test shared6-2.X {
+    db1 close
+    db2 close
+    db3 close
+    db4 close
+  } {}
+}
+
+#-------------------------------------------------------------------------
+# Test that it is possible to open an exclusive transaction while 
+# already holding a read-lock on the database file. And that it is
+# not possible if some other connection holds such a lock.
+#
+do_test shared6-3.1 {
+  sqlite3 db1 test.db
+  sqlite3 db2 test.db
+  sqlite3 db3 test.db
+} {}
+db1 eval {SELECT * FROM t1} {
+  # Within this block [db1] is holding a read-lock on t1. Test that
+  # this means t1 cannot be written by [db2].
+  #
+  do_test shared6-3.2 {
+    catchsql { INSERT INTO t1 VALUES(1, 2) } db2
+  } {1 {database table is locked: t1}}
+
+  do_test shared6-3.3 {
+    execsql { BEGIN EXCLUSIVE } db1
+  } {}
+  break
+}
+do_test shared6-3.4 {
+  catchsql { SELECT * FROM t1 } db2
+} {1 {database schema is locked: main}}
+do_test shared6-3.5 {
+  execsql COMMIT db1
+} {}
+db2 eval {SELECT * FROM t1} {
+  do_test shared6-3.6 {
+    catchsql { BEGIN EXCLUSIVE } db1
+  } {1 {database table is locked}}
+  break
+}
+do_test shared6-3.7 {
+  execsql { BEGIN } db1
+  execsql { BEGIN } db2
+} {}
+db2 eval {SELECT * FROM t1} {
+  do_test shared6-3.8 {
+    catchsql { INSERT INTO t1 VALUES(1, 2) } db1
+  } {1 {database table is locked: t1}}
+  break
+}
+do_test shared6-3.9 {
+  execsql { BEGIN ; ROLLBACK } db3
+} {}
+do_test shared6-3.10 {
+  catchsql { SELECT * FROM t1 } db3
+} {1 {database table is locked}}
+do_test shared6-3.X {
+  db1 close
+  db2 close
+  db3 close
+} {}
+
+do_test shared6-4.1 {
+  #forcedelete test.db test.db-journal
+  sqlite3 db1 test.db
+  sqlite3 db2 test.db
+
+  set ::STMT [sqlite3_prepare_v2 db1 "SELECT * FROM t1" -1 DUMMY]
+  execsql { CREATE TABLE t5(a, b) } db2
+} {}
+do_test shared6-4.2 {
+  sqlite3_finalize $::STMT
+} {SQLITE_OK}
+do_test shared6-4.X {
+  
+  db1 close
+  db2 close
+} {}
+
+sqlite3_enable_shared_cache $::enable_shared_cache
+finish_test
diff --git a/test/shared7.test b/test/shared7.test
new file mode 100644
index 0000000000000000000000000000000000000000..9f4880f56e2a9a91b34fa2c5e2e46248c87f501d
--- /dev/null
+++ b/test/shared7.test
@@ -0,0 +1,58 @@
+# 2009 April 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Make sure that attaching the same database multiple times in
+# shared cache mode fails.
+#
+# $Id: shared7.test,v 1.1 2009/04/30 13:30:33 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable !shared_cache { finish_test ; return }
+
+do_test shared7-1.1 {
+  set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
+  sqlite3_enable_shared_cache
+} {1}
+
+# EVIDENCE-OF: R-05098-06501 In shared cache mode, attempting to attach
+# the same database file more than once results in an error.
+#
+do_test shared7-1.2 {
+  db close
+  sqlite3 db test.db
+  db eval {
+    CREATE TABLE t1(x);
+  }
+  catchsql {
+    ATTACH 'test.db' AS err1;
+  }
+} {1 {database is already attached}}
+
+do_test shared7-1.3 {
+  forcedelete test2.db test2.db-journal
+  db eval {
+    ATTACH 'test2.db' AS test2;
+    CREATE TABLE test2.t2(y);
+  }
+  catchsql {
+    ATTACH 'test2.db' AS err2;
+  }
+} {1 {database is already attached}}
+do_test shared7-1.4 {
+  catchsql {
+    ATTACH 'test.db' AS err1;
+  }
+} {1 {database is already attached}}
+
+
+sqlite3_enable_shared_cache $::enable_shared_cache
+finish_test
diff --git a/test/shared8.test b/test/shared8.test
new file mode 100644
index 0000000000000000000000000000000000000000..f9607262b44de25bc9018d16ca746f1511883177
--- /dev/null
+++ b/test/shared8.test
@@ -0,0 +1,113 @@
+# 2012 May 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# The tests in this file are intended to show that closing one database
+# connection to a shared-cache while there exist other connections (a)
+# does not cause the schema to be reloaded and (b) does not cause any
+# other problems.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable !shared_cache { finish_test ; return }
+set testprefix shared8
+
+db close
+set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
+do_test 0.0 { sqlite3_enable_shared_cache } {1}
+
+proc roman {n} {
+  array set R {1 i 2 ii 3 iii 4 iv 5 v 6 vi 7 vii 8 viii 9 ix 10 x}
+  set R($n)
+}
+
+#-------------------------------------------------------------------------
+# The following tests work as follows:
+#
+#    1.0: Open connection [db1] and populate the database.
+#
+#    1.1: Using "PRAGMA writable_schema", destroy the database schema on
+#         disk. The schema is still in memory, so it is possible to keep
+#         using it, but any attempt to reload it from disk will fail.
+#
+#    1.3-4: Open connection db2. Check that it can see the db schema. Then
+#           close db1 and check that db2 still works. This shows that closing
+#           db1 did not reset the in-memory schema.
+#
+#    1.5-7: Similar to 1.3-4.
+#
+#    1.8: Close all database connections (deleting the in-memory schema).
+#         Then open a new connection and check that it cannot read the db.
+#         
+do_test 1.0 {
+  sqlite3 db1 test.db
+  db1 func roman roman
+  execsql {
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, 1);
+    INSERT INTO t1 VALUES(2, 2);
+    INSERT INTO t1 VALUES(3, 3);
+    INSERT INTO t1 VALUES(4, 4);
+    CREATE VIEW v1 AS SELECT a, roman(b) FROM t1;
+    SELECT * FROM v1;
+  } db1
+} {1 i 2 ii 3 iii 4 iv}
+
+do_test 1.1 {
+  sqlite3_db_config db1 DEFENSIVE 0
+  execsql { 
+    PRAGMA writable_schema = 1;
+    DELETE FROM sqlite_master WHERE 1;
+    PRAGMA writable_schema = 0;
+    SELECT * FROM sqlite_master;
+  } db1
+} {}
+
+do_test 1.2 {
+  execsql { SELECT * FROM v1 } db1
+} {1 i 2 ii 3 iii 4 iv}
+
+do_test 1.3 {
+  sqlite3 db2 test.db
+  db2 func roman roman
+  execsql { SELECT * FROM v1 } db2
+} {1 i 2 ii 3 iii 4 iv}
+
+do_test 1.4 {
+  db1 close
+  execsql { SELECT * FROM v1 } db2
+} {1 i 2 ii 3 iii 4 iv}
+
+do_test 1.5 {
+  sqlite3 db3 test.db
+  db3 func roman roman
+  execsql { SELECT * FROM v1 } db3
+} {1 i 2 ii 3 iii 4 iv}
+
+do_test 1.6 {
+  execsql { SELECT * FROM v1 } db2
+} {1 i 2 ii 3 iii 4 iv}
+
+do_test 1.7 {
+  db2 close
+  execsql { SELECT * FROM v1 } db3
+} {1 i 2 ii 3 iii 4 iv}
+
+do_test 1.8 {
+  db3 close
+  sqlite3 db4 test.db
+  catchsql { SELECT * FROM v1 } db4
+} {1 {no such table: v1}}
+
+
+foreach db {db1 db2 db3 db4} { catch { $db close } }
+sqlite3_enable_shared_cache $::enable_shared_cache
+finish_test
diff --git a/test/shared9.test b/test/shared9.test
new file mode 100644
index 0000000000000000000000000000000000000000..5bb46c26861012a4669bc9f7d807c5a5d6c059bf
--- /dev/null
+++ b/test/shared9.test
@@ -0,0 +1,230 @@
+# 2012 October 5
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# The tests in this file are intended to show if two connections attach
+# to the same shared cache using different database names, views and
+# virtual tables may still be accessed.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+set testprefix shared9
+
+ifcapable !view||!trigger||!shared_cache {
+  finish_test
+  return
+}
+
+db close
+set enable_shared_cache [sqlite3_enable_shared_cache 1]
+
+sqlite3 db1 test.db
+sqlite3 db2 test.db
+forcedelete test.db2
+
+do_test 1.1 {
+  db1 eval {
+    ATTACH 'test.db2' AS 'fred';
+    CREATE TABLE fred.t1(a, b, c);
+    CREATE VIEW fred.v1 AS SELECT * FROM t1;
+
+    CREATE TABLE fred.t2(a, b);
+    CREATE TABLE fred.t3(a, b);
+    CREATE TRIGGER fred.trig AFTER INSERT ON t2 BEGIN
+      DELETE FROM t3;
+      INSERT INTO t3 SELECT * FROM t2;
+    END;
+    INSERT INTO t2 VALUES(1, 2);
+    SELECT * FROM t3;
+  }
+} {1 2}
+
+do_test 1.2 { db2 eval "ATTACH 'test.db2' AS 'jones'" } {}
+do_test 1.3 { db2 eval "SELECT * FROM v1"             } {}
+do_test 1.4 { db2 eval "INSERT INTO t2 VALUES(3, 4)"  } {}
+
+ifcapable fts3 {
+  do_test 1.5 {
+    db1 eval {
+      CREATE VIRTUAL TABLE fred.t4 USING fts4;
+      INSERT INTO t4 VALUES('hello world');
+    }
+  } {}
+
+  do_test 1.6 {
+    db2 eval {
+      INSERT INTO t4 VALUES('shared cache');
+      SELECT * FROM t4 WHERE t4 MATCH 'hello';
+    }
+  } {{hello world}}
+
+  do_test 1.7 {
+    db1 eval {
+      SELECT * FROM t4 WHERE t4 MATCH 'c*';
+    }
+  } {{shared cache}}
+}
+
+db1 close
+db2 close
+
+#-------------------------------------------------------------------------
+# The following tests attempt to find a similar problem with collation 
+# sequence names - pointers to database handle specific allocations leaking 
+# into schema objects and being used after the original handle has been
+# closed.
+#
+forcedelete test.db test.db2
+sqlite3 db1 test.db
+sqlite3 db2 test.db
+foreach x {collate1 collate2 collate3} {
+  proc $x {a b} { string compare $a $b }
+  db1 collate $x $x
+  db2 collate $x $x
+}
+do_test 2.1 {
+  db1 eval {
+    CREATE TABLE t1(a, b, c COLLATE collate1);
+    CREATE INDEX i1 ON t1(a COLLATE collate2, c, b);
+  }
+} {}
+do_test 2.2 {
+  db1 close
+  db2 eval "INSERT INTO t1 VALUES('abc', 'def', 'ghi')"
+} {}
+db2 close
+
+#-------------------------------------------------------------------------
+# At one point, the following would cause a collation sequence belonging
+# to connection [db1] to be invoked by a call to [db2 eval]. Which is a
+# problem if [db1] has already been closed.
+#
+forcedelete test.db test.db2
+sqlite3 db1 test.db
+sqlite3 db2 test.db
+
+proc mycollate_db1 {a b} {set ::invoked_mycollate_db1 1 ; string compare $a $b}
+proc mycollate_db2 {a b} {string compare $a $b}
+
+db1 collate mycollate mycollate_db1
+db2 collate mycollate mycollate_db2
+
+do_test 2.3 {
+  set ::invoked_mycollate_db1 0
+  db1 eval {
+    CREATE TABLE t1(a COLLATE mycollate, CHECK (a IN ('one', 'two', 'three')));
+    INSERT INTO t1 VALUES('one');
+  }
+  db1 close
+  set ::invoked_mycollate_db1
+} {1}
+do_test 2.4 {
+  set ::invoked_mycollate_db1 0
+  db2 eval {
+    INSERT INTO t1 VALUES('two');
+  }
+  db2 close
+  set ::invoked_mycollate_db1
+} {0}
+
+forcedelete test.db test.db2
+sqlite3 db1 test.db
+sqlite3 db2 test.db
+db1 collate mycollate mycollate_db1
+db2 collate mycollate mycollate_db2
+
+do_test 2.13 {
+  set ::invoked_mycollate_db1 0
+  db1 eval {
+    CREATE TABLE t1(a, CHECK (a COLLATE mycollate IN ('one', 'two', 'three')));
+    INSERT INTO t1 VALUES('one');
+  }
+  db1 close
+  set ::invoked_mycollate_db1
+} {1}
+do_test 2.14 {
+  set ::invoked_mycollate_db1 0
+  db2 eval {
+    INSERT INTO t1 VALUES('two');
+  }
+  db2 close
+  set ::invoked_mycollate_db1
+} {0}
+
+#-------------------------------------------------------------------------
+# This test verifies that a bug causing a busy-handler belonging to one
+# shared-cache connection to be executed as a result of an sqlite3_step()
+# on another has been fixed.
+#
+forcedelete test.db test.db2
+sqlite3 db1 test.db
+sqlite3 db2 test.db
+
+proc busyhandler {handle args} {
+  set ::busyhandler_invoked_for $handle
+  return 1
+}
+db1 busy [list busyhandler db1]
+db2 busy [list busyhandler db2]
+
+do_test 3.1 {
+  db1 eval {
+    BEGIN; 
+      CREATE TABLE t1(a, b);
+      CREATE TABLE t2(a, b);
+      INSERT INTO t1 VALUES(1, 2);
+      INSERT INTO t2 VALUES(1, 2);
+  }
+  # Keep this next COMMIT as a separate statement. This ensures that COMMIT
+  # has already been compiled and loaded into the tcl interface statement 
+  # cache when it is attempted below.
+  db1 eval COMMIT
+  db1 eval {
+    BEGIN;
+      INSERT INTO t1 VALUES(3, 4);
+  }
+} {}
+
+do_test 3.2 {
+  set ::tf [launch_testfixture]
+  testfixture $::tf {
+    sqlite3 db test.db
+    db eval {
+      BEGIN;
+        SELECT * FROM t1;
+    }
+  }
+} {1 2}
+
+do_test 3.3 {
+  db2 eval { SELECT * FROM t2 }
+} {1 2}
+
+do_test 3.4 {
+  list [catch { db1 eval COMMIT } msg] $msg
+} {1 {database is locked}}
+
+# At one point the following would fail, showing that the busy-handler
+# belonging to [db2] was invoked instead.
+do_test 3.5 {
+  set ::busyhandler_invoked_for
+} {db1}
+do_test 3.6 {
+  close $::tf
+  db1 eval COMMIT
+} {}
+  
+db1 close
+db2 close
+
+sqlite3_enable_shared_cache $::enable_shared_cache
+finish_test
diff --git a/test/sharedA.test b/test/sharedA.test
new file mode 100644
index 0000000000000000000000000000000000000000..ef57c89cdfd6ed924f5b54e7b182dbb18d8df944
--- /dev/null
+++ b/test/sharedA.test
@@ -0,0 +1,198 @@
+# 2013 May 14
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test some specific circumstances to do with shared cache mode.
+#
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+if {[run_thread_tests]==0} { finish_test ; return }
+db close
+set ::testprefix sharedA
+
+ifcapable !shared_cache {
+  finish_test
+  return
+}
+
+if {[atomic_batch_write test.db]} {
+  finish_test
+  return
+}
+
+set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
+
+#-------------------------------------------------------------------------
+#
+do_test 0.1 {
+  sqlite3 db1 test.db
+  sqlite3 db2 test.db
+
+  db1 eval {
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(randomblob(100));
+    INSERT INTO t1 SELECT randomblob(100) FROM t1;
+    INSERT INTO t1 SELECT randomblob(100) FROM t1;
+    INSERT INTO t1 SELECT randomblob(100) FROM t1;
+    INSERT INTO t1 SELECT randomblob(100) FROM t1;
+    INSERT INTO t1 SELECT randomblob(100) FROM t1;
+    INSERT INTO t1 SELECT randomblob(100) FROM t1;
+    CREATE INDEX i1 ON t1(x);
+  }
+
+  db1 eval {
+    BEGIN;
+    DROP INDEX i1;
+  }
+
+  db2 close
+
+  db1 eval {
+    INSERT INTO t1 SELECT randomblob(100) FROM t1;
+    ROLLBACK;
+    PRAGMA integrity_check;
+  }
+} {ok}
+
+db1 close
+forcedelete test.db
+
+
+#-------------------------------------------------------------------------
+#
+do_test 1.1 {
+  sqlite3 db1 test.db
+  sqlite3 db2 test.db
+  db2 eval {
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(123);
+  }
+  db1 eval { 
+    SELECT * FROM t1;
+    CREATE INDEX i1 ON t1(x);
+  }
+} {123}
+
+do_test 1.2 {
+  db2 eval { SELECT * FROM t1 ORDER BY x; }
+
+  db1 eval {
+    BEGIN; DROP INDEX i1;
+  }
+  db1 close
+
+  db2 eval { SELECT * FROM t1 ORDER BY x; }
+} {123}
+
+do_test 1.3 {
+  db2 close
+} {}
+
+#-------------------------------------------------------------------------
+#
+# sqlite3RollbackAll() loops through all attached b-trees and rolls
+# back each one separately.  Then if the SQLITE_InternChanges flag is
+# set, it resets the schema.  Both of the above steps must be done
+# while holding a mutex, otherwise another thread might slip in and
+# try to use the new schema with the old data.
+#
+# The following sequence of tests attempt to verify that the actions
+# taken by sqlite3RollbackAll() are thread-atomic (that they cannot be
+# interrupted by a separate thread.)  
+#
+# Note that a TCL interpreter can only be used within the thread in which
+# it was originally created (because it uses thread-local-storage).  
+# The tvfs callbacks must therefore only run on the main thread.  
+# There is some trickery in the read_callback procedure to ensure that
+# this is the case.
+#
+testvfs tvfs
+
+# Set up two databases and two database connections.
+#
+#   db1:  main(test.db), two(test2.db)
+#   db2:  main(test.db)
+#
+# The cache for test.db is shared between db1 and db2.
+#
+do_test 2.1 {
+  forcedelete test.db test.db2
+  sqlite3 db1 test.db -vfs tvfs
+  db1 eval { ATTACH 'test.db2' AS two }
+
+  db1 eval {
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(1);
+    INSERT INTO t1 VALUES(2);
+    INSERT INTO t1 VALUES(3);
+    CREATE TABLE two.t2(x);
+    INSERT INTO t2 SELECT * FROM t1;
+  }
+
+  sqlite3 db2 test.db -vfs tvfs
+  db2 eval { SELECT * FROM t1 }
+} {1 2 3}
+
+# Create a prepared statement on db2 that will attempt a schema change
+# in test.db.  Meanwhile, start a transaction on db1 that changes
+# the schema of test.db and that creates a rollback journal on test2.db
+#
+do_test 2.2 {
+  set ::STMT [sqlite3_prepare db2 "CREATE INDEX i1 ON t1(x)" -1 tail]
+  db1 eval {
+    BEGIN;
+      CREATE INDEX i1 ON t1(x);
+      INSERT INTO t2 VALUES('value!');
+  }
+} {}
+
+# Set up a callback that will cause db2 to try to execute its
+# schema change when db1 accesses the journal file of test2.db.
+#
+# This callback will be invoked after the content of test.db has
+# be rolled back but before the schema has been reset.  If the
+# sqlite3RollbackAll() operation is not thread-atomic, then the
+# db2 statement in the callback will see old content with the newer
+# schema, which is wrong.
+#
+tvfs filter xRead
+tvfs script read_callback
+unset -nocomplain ::some_time_laster
+unset -nocomplain ::thread_result
+proc read_callback {call file args} { 
+  if {[string match *test.db2-journal $file]} {
+    tvfs filter {}   ;# Ensure that tvfs callbacks to do run on the
+                      # child thread
+    sqlthread spawn ::thread_result [subst -nocommands {
+      sqlite3_step $::STMT
+      set rc [sqlite3_finalize $::STMT]
+    }]
+    after 1000 { set ::some_time_later 1 }
+    vwait ::some_time_later
+  }
+}
+do_test 2.3 { db1 eval ROLLBACK } {}
+
+# Verify that the db2 statement invoked by the callback detected the
+# schema change.
+#
+if {[info exists ::thread_result]==0} { vwait ::thread_result }
+do_test 2.4 { 
+  list $::thread_result [sqlite3_errmsg db2] 
+} {SQLITE_SCHEMA {database schema has changed}}
+
+db1 close
+db2 close
+tvfs delete
+
+sqlite3_enable_shared_cache $::enable_shared_cache
+finish_test
diff --git a/test/sharedB.test b/test/sharedB.test
new file mode 100644
index 0000000000000000000000000000000000000000..2a7e49cd91c47dab71f5e94bfc99eee065c55e42
--- /dev/null
+++ b/test/sharedB.test
@@ -0,0 +1,65 @@
+# 2014-12-05
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Open two database connections on the same database in shared cache
+# mode.  Hold one open while repeatedly closing, reopening, and using
+# the second.
+#
+# This test is designed to demostrate that the fix for ticket
+# [e4a18565a36884b00edf66541f38c693827968ab] works.  
+#
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+if {[run_thread_tests]==0} { finish_test ; return }
+db close
+set ::testprefix sharedB
+
+ifcapable !shared_cache {
+  finish_test
+  return
+}
+
+set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
+
+#-------------------------------------------------------------------------
+#
+do_test 1.1 {
+  sqlite3 db1 test.db
+  sqlite3 db2 test.db
+
+  db1 eval {
+    CREATE TABLE t1(x,y TEXT COLLATE nocase);
+    WITH RECURSIVE
+      c(i) AS (VALUES(1) UNION ALL SELECT i+1 FROM c WHERE i<100)
+    INSERT INTO t1(x,y) SELECT i, printf('x%03dy',i) FROM c;
+    CREATE INDEX t1yx ON t1(y,x);
+  }
+  db2 eval {
+    SELECT x FROM t1 WHERE y='X014Y';
+  }
+} {14}
+
+for {set j 1} {$j<=100} {incr j} {
+  do_test 1.2.$j {
+    db2 close
+    sqlite3 db2 test.db
+    db2 eval {
+      SELECT x FROM t1 WHERE y='X014Y';
+    }
+  } {14}
+}
+
+db1 close
+db2 close
+sqlite3_enable_shared_cache $::enable_shared_cache
+finish_test
diff --git a/test/shared_err.test b/test/shared_err.test
new file mode 100644
index 0000000000000000000000000000000000000000..fdc1c139758c38a3fa062eb440a7a1d9bdbfdf6d
--- /dev/null
+++ b/test/shared_err.test
@@ -0,0 +1,528 @@
+# 2005 December 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# The focus of the tests in this file are IO errors that occur in a shared
+# cache context. What happens to connection B if one connection A encounters
+# an IO-error whilst reading or writing the file-system?
+#
+# $Id: shared_err.test,v 1.24 2008/10/12 00:27:54 shane Exp $
+
+proc skip {args} {}
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+db close
+
+ifcapable !shared_cache||!subquery {
+  finish_test
+  return
+}
+
+set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
+
+do_ioerr_test shared_ioerr-1 -tclprep {
+  sqlite3 db2 test.db
+  execsql {
+    PRAGMA read_uncommitted = 1;
+    CREATE TABLE t1(a,b,c);
+    BEGIN;
+    SELECT * FROM sqlite_master;
+  } db2
+} -sqlbody {
+  SELECT * FROM sqlite_master;
+  INSERT INTO t1 VALUES(1,2,3);
+  BEGIN TRANSACTION;
+  INSERT INTO t1 VALUES(1,2,3);
+  INSERT INTO t1 VALUES(4,5,6);
+  ROLLBACK;
+  SELECT * FROM t1;
+  BEGIN TRANSACTION;
+  INSERT INTO t1 VALUES(1,2,3);
+  INSERT INTO t1 VALUES(4,5,6);
+  COMMIT;
+  SELECT * FROM t1;
+  DELETE FROM t1 WHERE a<100;
+} -cleanup {
+  do_test shared_ioerr-1.$n.cleanup.1 {
+    set res [catchsql {
+      SELECT * FROM t1;
+    } db2]
+    set possible_results [list               \
+      "1 {disk I/O error}"                   \
+      "0 {1 2 3}"                            \
+      "0 {1 2 3 1 2 3 4 5 6}"                \
+      "0 {1 2 3 1 2 3 4 5 6 1 2 3 4 5 6}"    \
+      "0 {}"                                 \
+      "1 {database disk image is malformed}" \
+    ]
+    set rc [expr [lsearch -exact $possible_results $res] >= 0]
+    if {$rc != 1} {
+      puts ""
+      puts "Result: $res"
+    }
+    set rc
+  } {1}
+
+  # The "database disk image is malformed" is a special case that can
+  # occur if an IO error occurs during a rollback in the {SELECT * FROM t1}
+  # statement above. This test is to make sure there is no real database
+  # corruption.
+  db2 close
+  do_test shared_ioerr-1.$n.cleanup.2 {
+    execsql {pragma integrity_check} db
+  } {ok}
+}
+
+do_ioerr_test shared_ioerr-2 -tclprep {
+  sqlite3 db2 test.db
+  execsql {
+    PRAGMA read_uncommitted = 1;
+    BEGIN;
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1(oid) VALUES(NULL);
+    INSERT INTO t1(oid) SELECT NULL FROM t1;
+    INSERT INTO t1(oid) SELECT NULL FROM t1;
+    INSERT INTO t1(oid) SELECT NULL FROM t1;
+    INSERT INTO t1(oid) SELECT NULL FROM t1;
+    INSERT INTO t1(oid) SELECT NULL FROM t1;
+    INSERT INTO t1(oid) SELECT NULL FROM t1;
+    INSERT INTO t1(oid) SELECT NULL FROM t1;
+    INSERT INTO t1(oid) SELECT NULL FROM t1;
+    INSERT INTO t1(oid) SELECT NULL FROM t1;
+    INSERT INTO t1(oid) SELECT NULL FROM t1;
+    UPDATE t1 set a = oid, b = 'abcdefghijklmnopqrstuvwxyz0123456789';
+    CREATE INDEX i1 ON t1(a);
+    COMMIT;
+    BEGIN;
+    SELECT * FROM sqlite_master;
+  } db2
+} -tclbody {
+  set ::residx 0
+  execsql {DELETE FROM t1 WHERE 0 = (a % 2);}
+  incr ::residx
+
+  # When this transaction begins the table contains 512 entries. The
+  # two statements together add 512+146 more if it succeeds. 
+  # (1024/7==146)
+  execsql {BEGIN;}
+  execsql {INSERT INTO t1 SELECT a+1, b FROM t1;}
+  execsql {INSERT INTO t1 SELECT 'string' || a, b FROM t1 WHERE 0 = (a%7);}
+  execsql {COMMIT;}
+
+  incr ::residx
+} -cleanup {
+  catchsql ROLLBACK
+  do_test shared_ioerr-2.$n.cleanup.1 {
+    set res [catchsql {
+      SELECT max(a), min(a), count(*) FROM (SELECT a FROM t1 order by a);
+    } db2]
+    set possible_results [list \
+      {0 {1024 1 1024}}        \
+      {0 {1023 1 512}}         \
+      {0 {string994 1 1170}}   \
+    ]
+    set idx [lsearch -exact $possible_results $res]
+    set success [expr {$idx==$::residx || $res=="1 {disk I/O error}"}]
+    if {!$success} {
+      puts ""
+      puts "Result: \"$res\" ($::residx)"
+    }
+    set success
+  } {1}
+  db2 close
+}
+
+# This test is designed to provoke an IO error when a cursor position is
+# "saved" (because another cursor is going to modify the underlying table). 
+# 
+do_ioerr_test shared_ioerr-3 -tclprep {
+  sqlite3 db2 test.db
+  execsql {
+    PRAGMA read_uncommitted = 1;
+    PRAGMA cache_size = 10;
+    BEGIN;
+    CREATE TABLE t1(a, b, UNIQUE(a, b));
+  } db2
+  for {set i 0} {$i < 200} {incr i} {
+    set a [string range [string repeat "[format %03d $i]." 5] 0 end-1]
+
+    set b [string repeat $i 2000]
+    execsql {INSERT INTO t1 VALUES($a, $b)} db2
+  }
+  execsql {COMMIT} db2
+  set ::DB2 [sqlite3_connection_pointer db2]
+  set ::STMT [sqlite3_prepare $::DB2 "SELECT a FROM t1 ORDER BY a" -1 DUMMY]
+  sqlite3_step $::STMT       ;# Cursor points at 000.000.000.000
+  sqlite3_step $::STMT       ;# Cursor points at 001.001.001.001
+
+} -tclbody {
+  execsql {
+    BEGIN;
+    INSERT INTO t1 VALUES('201.201.201.201.201', NULL);
+    UPDATE t1 SET a = '202.202.202.202.202' WHERE a LIKE '201%';
+    COMMIT;
+  }
+} -cleanup {
+  set ::steprc  [sqlite3_step $::STMT]
+  set ::column  [sqlite3_column_text $::STMT 0]
+  set ::finalrc [sqlite3_finalize $::STMT]
+
+  # There are three possible outcomes here (assuming persistent IO errors):
+  #
+  # 1. If the [sqlite3_step] did not require any IO (required pages in
+  #    the cache), then the next row ("002...") may be retrieved 
+  #    successfully.
+  #
+  # 2. If the [sqlite3_step] does require IO, then [sqlite3_step] returns
+  #    SQLITE_ERROR and [sqlite3_finalize] returns IOERR.
+  #
+  # 3. If, after the initial IO error, SQLite tried to rollback the
+  #    active transaction and a second IO error was encountered, then
+  #    statement $::STMT will have been aborted. This means [sqlite3_stmt]
+  #    returns SQLITE_ABORT, and the statement cursor does not move. i.e.
+  #    [sqlite3_column] still returns the current row ("001...") and
+  #    [sqlite3_finalize] returns SQLITE_OK.
+  #
+
+  do_test shared_ioerr-3.$n.cleanup.1 {
+    expr {
+      $::steprc eq "SQLITE_ROW" || 
+      $::steprc eq "SQLITE_ERROR" ||
+      $::steprc eq "SQLITE_ABORT" 
+    }
+  } {1}
+  do_test shared_ioerr-3.$n.cleanup.2 {
+    expr {
+      ($::steprc eq "SQLITE_ROW" && $::column eq "002.002.002.002.002") ||
+      ($::steprc eq "SQLITE_ERROR" && $::column eq "") ||
+      ($::steprc eq "SQLITE_ABORT" && $::column eq "001.001.001.001.001") 
+    }
+  } {1}
+  do_test shared_ioerr-3.$n.cleanup.3 {
+    expr {
+      ($::steprc eq "SQLITE_ROW" && $::finalrc eq "SQLITE_OK") ||
+      ($::steprc eq "SQLITE_ERROR" && $::finalrc eq "SQLITE_IOERR") ||
+      ($::steprc eq "SQLITE_ERROR" && $::finalrc eq "SQLITE_ABORT")
+    }
+  } {1}
+
+# db2 eval {select * from sqlite_master}
+  db2 close
+}
+
+# This is a repeat of the previous test except that this time we
+# are doing a reverse-order scan of the table when the cursor is
+# "saved".
+# 
+do_ioerr_test shared_ioerr-3rev -tclprep {
+  sqlite3 db2 test.db
+  execsql {
+    PRAGMA read_uncommitted = 1;
+    PRAGMA cache_size = 10;
+    BEGIN;
+    CREATE TABLE t1(a, b, UNIQUE(a, b));
+  } db2
+  for {set i 0} {$i < 200} {incr i} {
+    set a [string range [string repeat "[format %03d $i]." 5] 0 end-1]
+
+    set b [string repeat $i 2000]
+    execsql {INSERT INTO t1 VALUES($a, $b)} db2
+  }
+  execsql {COMMIT} db2
+  set ::DB2 [sqlite3_connection_pointer db2]
+  set ::STMT [sqlite3_prepare $::DB2 \
+           "SELECT a FROM t1 ORDER BY a DESC" -1 DUMMY]
+  sqlite3_step $::STMT       ;# Cursor points at 199.199.199.199.199
+  sqlite3_step $::STMT       ;# Cursor points at 198.198.198.198.198
+
+} -tclbody {
+  execsql {
+    BEGIN;
+    INSERT INTO t1 VALUES('201.201.201.201.201', NULL);
+    UPDATE t1 SET a = '202.202.202.202.202' WHERE a LIKE '201%';
+    COMMIT;
+  }
+} -cleanup {
+  set ::steprc  [sqlite3_step $::STMT]
+  set ::column  [sqlite3_column_text $::STMT 0]
+  set ::finalrc [sqlite3_finalize $::STMT]
+
+  # There are three possible outcomes here (assuming persistent IO errors):
+  #
+  # 1. If the [sqlite3_step] did not require any IO (required pages in
+  #    the cache), then the next row ("002...") may be retrieved 
+  #    successfully.
+  #
+  # 2. If the [sqlite3_step] does require IO, then [sqlite3_step] returns
+  #    SQLITE_ERROR and [sqlite3_finalize] returns IOERR.
+  #
+  # 3. If, after the initial IO error, SQLite tried to rollback the
+  #    active transaction and a second IO error was encountered, then
+  #    statement $::STMT will have been aborted. This means [sqlite3_stmt]
+  #    returns SQLITE_ABORT, and the statement cursor does not move. i.e.
+  #    [sqlite3_column] still returns the current row ("001...") and
+  #    [sqlite3_finalize] returns SQLITE_OK.
+  #
+
+  do_test shared_ioerr-3rev.$n.cleanup.1 {
+    expr {
+      $::steprc eq "SQLITE_ROW" || 
+      $::steprc eq "SQLITE_ERROR" ||
+      $::steprc eq "SQLITE_ABORT" 
+    }
+  } {1}
+  do_test shared_ioerr-3rev.$n.cleanup.2 {
+    expr {
+      ($::steprc eq "SQLITE_ROW" && $::column eq "197.197.197.197.197") ||
+      ($::steprc eq "SQLITE_ERROR" && $::column eq "") ||
+      ($::steprc eq "SQLITE_ABORT" && $::column eq "198.198.198.198.198") 
+    }
+  } {1}
+  do_test shared_ioerr-3rev.$n.cleanup.3 {
+    expr {
+      ($::steprc eq "SQLITE_ROW" && $::finalrc eq "SQLITE_OK") ||
+      ($::steprc eq "SQLITE_ERROR" && $::finalrc eq "SQLITE_IOERR") ||
+      ($::steprc eq "SQLITE_ERROR" && $::finalrc eq "SQLITE_ABORT")
+    }
+  } {1}
+
+# db2 eval {select * from sqlite_master}
+  db2 close
+}
+
+# Provoke a malloc() failure when a cursor position is being saved. This
+# only happens with index cursors (because they malloc() space to save the
+# current key value). It does not happen with tables, because an integer
+# key does not require a malloc() to store. 
+#
+# The library should return an SQLITE_NOMEM to the caller. The query that
+# owns the cursor (the one for which the position is not saved) should
+# continue unaffected.
+# 
+do_malloc_test shared_err-4 -tclprep {
+  sqlite3 db2 test.db
+  execsql {
+    PRAGMA read_uncommitted = 1;
+    BEGIN;
+    CREATE TABLE t1(a, b, UNIQUE(a, b));
+  } db2
+  for {set i 0} {$i < 5} {incr i} {
+    set a [string repeat $i 10]
+    set b [string repeat $i 2000]
+    execsql {INSERT INTO t1 VALUES($a, $b)} db2
+  }
+  execsql {COMMIT} db2
+  set ::DB2 [sqlite3_connection_pointer db2]
+  set ::STMT [sqlite3_prepare $::DB2 "SELECT a FROM t1 ORDER BY a" -1 DUMMY]
+  sqlite3_step $::STMT       ;# Cursor points at 0000000000
+  sqlite3_step $::STMT       ;# Cursor points at 1111111111
+} -tclbody {
+  execsql {
+    INSERT INTO t1 VALUES(6, NULL);
+  }
+} -cleanup {
+  do_test shared_malloc-4.$::n.cleanup.1 {
+    set ::rc [sqlite3_step $::STMT]
+    expr {$::rc=="SQLITE_ROW" || $::rc=="SQLITE_ERROR"}
+  } {1}
+  if {$::rc=="SQLITE_ROW"} {
+    do_test shared_malloc-4.$::n.cleanup.2 {
+      sqlite3_column_text $::STMT 0
+    } {2222222222}
+  }
+  do_test shared_malloc-4.$::n.cleanup.3 {
+   set rc [sqlite3_finalize $::STMT]
+   expr {$rc=="SQLITE_OK" || $rc=="SQLITE_ABORT" ||
+         $rc=="SQLITE_NOMEM" || $rc=="SQLITE_IOERR"}
+  } {1}
+# db2 eval {select * from sqlite_master}
+  db2 close
+}
+
+do_malloc_test shared_err-5 -tclbody {
+  db close
+  sqlite3 dbX test.db
+  sqlite3 dbY test.db
+  dbX close
+  dbY close
+} -cleanup {
+  catch {dbX close}
+  catch {dbY close}
+}
+
+do_malloc_test shared_err-6 -tclbody {
+  catch {db close}
+  ifcapable deprecated {
+    sqlite3_thread_cleanup
+  }
+  sqlite3_enable_shared_cache 0
+} -cleanup {
+  sqlite3_enable_shared_cache 1
+}
+
+# As of 3.5.0, sqlite3_enable_shared_cache can be called at
+# any time and from any thread
+#do_test shared_err-misuse-7.1 {
+#  sqlite3 db test.db
+#  catch {
+#    sqlite3_enable_shared_cache 0
+#  } msg
+#  set msg
+#} {bad parameter or other API misuse}
+
+# Again provoke a malloc() failure when a cursor position is being saved, 
+# this time during a ROLLBACK operation by some other handle. 
+#
+# The library should return an SQLITE_NOMEM to the caller. The query that
+# owns the cursor (the one for which the position is not saved) should
+# be aborted.
+# 
+set ::aborted 0
+do_malloc_test shared_err-8 -tclprep {
+  sqlite3 db2 test.db
+  execsql {
+    PRAGMA read_uncommitted = 1;
+    BEGIN;
+    CREATE TABLE t1(a, b, UNIQUE(a, b));
+  } db2
+  for {set i 0} {$i < 2} {incr i} {
+    set a [string repeat $i 10]
+    set b [string repeat $i 2000]
+    execsql {INSERT INTO t1 VALUES($a, $b)} db2
+  }
+  execsql {COMMIT} db2
+  execsql BEGIN
+  execsql ROLLBACK
+  set ::DB2 [sqlite3_connection_pointer db2]
+  set ::STMT [sqlite3_prepare $::DB2 "SELECT a FROM t1 ORDER BY a" -1 DUMMY]
+  sqlite3_step $::STMT       ;# Cursor points at 0000000000
+  sqlite3_step $::STMT       ;# Cursor points at 1111111111
+} -tclbody {
+  execsql {
+    BEGIN;
+    INSERT INTO t1 VALUES(6, NULL);
+    ROLLBACK}
+} -cleanup {
+  # UPDATE: As of [5668], if the rollback fails SQLITE_CORRUPT is returned. 
+  # So these tests have been updated to expect SQLITE_CORRUPT and its
+  # associated English language error message.
+  #
+  do_test shared_malloc-8.$::n.cleanup.1 {
+    set res [catchsql {SELECT a FROM t1} db2]
+    set ans [lindex $res 1]
+    if {[lindex $res 0]} {
+       set r [expr {
+         $ans=="disk I/O error" ||
+         $ans=="out of memory" ||
+         $ans=="database disk image is malformed"
+       }]
+    } else {
+       set r [expr {[lrange $ans 0 1]=="0000000000 1111111111"}]
+    }
+  } {1}
+  do_test shared_malloc-8.$::n.cleanup.2 {
+    set rc1 [sqlite3_step $::STMT]
+    set rc2 [sqlite3_finalize $::STMT]
+    if {$rc2=="SQLITE_ABORT"} {
+      incr ::aborted
+    }
+    expr {
+      ($rc1=="SQLITE_DONE" && $rc2=="SQLITE_OK") || 
+      ($rc1=="SQLITE_ERROR" && $rc2=="SQLITE_ABORT") ||
+      ($rc1=="SQLITE_ERROR" && $rc2=="SQLITE_NOMEM") ||
+      ($rc1=="SQLITE_ERROR" && $rc2=="SQLITE_IOERR") ||
+      ($rc1=="SQLITE_ERROR" && $rc2=="SQLITE_CORRUPT")
+    }
+  } {1}
+  db2 close
+}
+
+# When this test case was written, OOM errors in write statements would 
+# cause transaction rollback, which would trip cursors in other statements,
+# aborting them. This no longer happens.
+#
+do_test shared_malloc-8.X {
+  # Test that one or more queries were aborted due to the malloc() failure.
+  # expr $::aborted>=1
+  expr $::aborted==0
+} {1}
+
+# This test is designed to catch a specific bug that was present during
+# development of 3.5.0. If a malloc() failed while setting the page-size,
+# a buffer (Pager.pTmpSpace) was being freed. This could cause a seg-fault
+# later if another connection tried to use the pager.
+#
+# This test will crash 3.4.2.
+#
+do_malloc_test shared_err-9 -tclprep {
+  sqlite3 db2 test.db
+} -sqlbody {
+  PRAGMA page_size = 4096;
+  PRAGMA page_size = 1024;
+} -cleanup {
+  db2 eval {
+    CREATE TABLE abc(a, b, c);
+    BEGIN;
+    INSERT INTO abc VALUES(1, 2, 3);
+    ROLLBACK;
+  }     
+  db2 close
+}     
+
+catch {db close}
+catch {db2 close}
+do_malloc_test shared_err-10 -tclprep {
+  sqlite3 db test.db
+  sqlite3 db2 test.db
+  
+  db eval { SELECT * FROM sqlite_master }
+  db2 eval { 
+    BEGIN;
+    CREATE TABLE abc(a, b, c);
+  }
+} -tclbody {
+  catch {db eval {SELECT * FROM sqlite_master}}
+  error 1
+} -cleanup {
+  execsql { SELECT * FROM sqlite_master }
+}
+
+do_malloc_test shared_err-11 -tclprep {
+  sqlite3 db test.db
+  sqlite3 db2 test.db
+  
+  db eval { SELECT * FROM sqlite_master }
+  db2 eval { 
+    BEGIN;
+    CREATE TABLE abc(a, b, c);
+  }
+} -tclbody {
+  catch {db eval {SELECT * FROM sqlite_master}}
+  catch {sqlite3_errmsg16 db}
+  error 1
+} -cleanup {
+  execsql { SELECT * FROM sqlite_master }
+}
+
+catch {db close}
+catch {db2 close}
+
+do_malloc_test shared_err-12 -sqlbody {
+  CREATE TABLE abc(a, b, c);
+  INSERT INTO abc VALUES(1, 2, 3);
+}
+
+catch {db close}
+catch {db2 close}
+sqlite3_enable_shared_cache $::enable_shared_cache
+finish_test
diff --git a/test/sharedlock.test b/test/sharedlock.test
new file mode 100644
index 0000000000000000000000000000000000000000..caa48f5bbd4417d63fe495252a528f042c68f326
--- /dev/null
+++ b/test/sharedlock.test
@@ -0,0 +1,82 @@
+# 2009 July 2
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# $Id: sharedlock.test,v 1.1 2009/07/02 17:21:58 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix sharedlock
+db close
+
+ifcapable !shared_cache {
+  finish_test
+  return
+}
+
+set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
+sqlite3 db  test.db
+sqlite3 db2 test.db
+
+do_test sharedlock-1.1 {
+  execsql {
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, 'one');
+    INSERT INTO t1 VALUES(2, 'two');
+  }
+} {}
+
+do_test sharedlock-1.2 {
+  set res [list]
+  db eval { SELECT * FROM t1 ORDER BY rowid } {
+    lappend res $a $b
+    if {$a == 1} { catch { db  eval "INSERT INTO t1 VALUES(3, 'three')" } }
+
+    # This should fail. Connection [db] has a read-lock on t1, which should
+    # prevent connection [db2] from obtaining the write-lock it needs to
+    # modify t1. At one point there was a bug causing the previous INSERT
+    # to drop the read-lock belonging to [db].
+    if {$a == 2} { catch { db2 eval "INSERT INTO t1 VALUES(4, 'four')"  } }
+  }
+  set res
+} {1 one 2 two 3 three}
+
+
+#-------------------------------------------------------------------------
+# Test that a write-lock is taken on a table when its entire contents
+# are deleted using the OP_Clear optimization.
+#
+foreach {tn delete_sql} {
+  1 { DELETE FROM t2 WHERE 1 }
+  2 { DELETE FROM t2 }
+} {
+  do_execsql_test 2.1 {
+    DROP TABLE IF EXISTS t2;
+    CREATE TABLE t2(x, y);
+    INSERT INTO t2 VALUES(1, 2);
+    INSERT INTO t2 VALUES(3, 4);
+  }
+
+  do_test 2.2 { execsql { SELECT * FROM t2 } db2 } {1 2 3 4}
+
+  do_execsql_test 2.3 " BEGIN; $delete_sql; "
+
+  do_test 2.4 { 
+    catchsql { SELECT * FROM t2 } db2 
+  } {1 {database table is locked: t2}}
+
+  do_execsql_test 2.5 COMMIT
+}
+
+
+db close
+db2 close
+sqlite3_enable_shared_cache $::enable_shared_cache
+finish_test
diff --git a/test/shell1.test b/test/shell1.test
new file mode 100644
index 0000000000000000000000000000000000000000..a272295f55f6aea89c84e5963d26f52f2d640c4f
--- /dev/null
+++ b/test/shell1.test
@@ -0,0 +1,1300 @@
+# 2009 Nov 11
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# The focus of this file is testing the CLI shell tool.
+#
+# TESTRUNNER: shell
+#
+
+# Test plan:
+#
+#   shell1-1.*: Basic command line option handling.
+#   shell1-2.*: Basic "dot" command token parsing.
+#   shell1-3.*: Basic test that "dot" command can be called.
+#   shell1-{4-8}.*: Test various "dot" commands's functionality.
+#   shell1-9.*: Basic test that "dot" commands and SQL intermix ok.
+#
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set CLI [test_cli_invocation]
+db close
+forcedelete test.db test.db-journal test.db-wal
+sqlite3 db test.db
+
+#----------------------------------------------------------------------------
+# Test cases shell1-1.*: Basic command line option handling.
+#
+
+# invalid option
+do_test shell1-1.1.1 {
+  set res [catchcmd "-bad test.db" ""]
+  set rc [lindex $res 0]
+  list $rc \
+       [regexp {Error: unknown option: -bad} $res]
+} {1 1}
+do_test shell1-1.1.1b {
+  set res [catchcmd "test.db -bad" ""]
+  set rc [lindex $res 0]
+  list $rc \
+       [regexp {Error: unknown option: -bad} $res]
+} {1 1}
+# error on extra options
+do_test shell1-1.1.2 {
+  catchcmd "test.db \"select+3\" \"select+4\"" ""
+} {0 {3
+4}}
+# error on extra options
+do_test shell1-1.1.3 {
+  catchcmd "test.db FOO test.db BAD" ".quit"
+} {/1 .Error: in prepare, near "FOO": syntax error*/}
+
+# -help
+do_test shell1-1.2.1 {
+  set res [catchcmd "-help test.db" ""]
+  set rc [lindex $res 0]
+  list $rc \
+       [regexp {Usage} $res] \
+       [regexp {\-init} $res] \
+       [regexp {\-version} $res]
+} {1 1 1 1}
+
+# -init filename       read/process named file
+forcedelete FOO
+set out [open FOO w]
+puts $out ""
+close $out
+do_test shell1-1.3.1 {
+  catchcmd "-init FOO test.db" ""
+} {0 {}}
+do_test shell1-1.3.2 {
+  catchcmd "-init FOO test.db .quit BAD" ""
+} {0 {}}
+do_test shell1-1.3.3 {
+  catchcmd "-init FOO test.db BAD .quit" ""
+} {/1 .Error: in prepare, near "BAD": syntax error*/}
+
+# -echo                print commands before execution
+do_test shell1-1.4.1 {
+  catchcmd "-echo test.db" ""
+} {0 {}}
+
+# -[no]header          turn headers on or off
+do_test shell1-1.5.1 {
+  catchcmd "-header test.db" ""
+} {0 {}}
+do_test shell1-1.5.2 {
+  catchcmd "-noheader test.db" ""
+} {0 {}}
+
+# -bail                stop after hitting an error
+do_test shell1-1.6.1 {
+  catchcmd "-bail test.db" ""
+} {0 {}}
+
+# -interactive         force interactive I/O
+do_test shell1-1.7.1 {
+  set res [catchcmd "-interactive test.db" ".quit"]
+  set rc [lindex $res 0]
+  list $rc \
+       [regexp {SQLite version} $res] \
+       [regexp {Enter ".help" for usage hints} $res]
+} {0 1 1}
+
+# -batch               force batch I/O
+do_test shell1-1.8.1 {
+  catchcmd "-batch test.db" ""
+} {0 {}}
+
+# -column              set output mode to 'column'
+do_test shell1-1.9.1 {
+  catchcmd "-column test.db" ""
+} {0 {}}
+
+# -csv                 set output mode to 'csv'
+do_test shell1-1.10.1 {
+  catchcmd "-csv test.db" ""
+} {0 {}}
+
+# -html                set output mode to HTML
+do_test shell1-1.11.1 {
+  catchcmd "-html test.db" ""
+} {0 {}}
+
+# -line                set output mode to 'line'
+do_test shell1-1.12.1 {
+  catchcmd "-line test.db" ""
+} {0 {}}
+
+# -list                set output mode to 'list'
+do_test shell1-1.13.1 {
+  catchcmd "-list test.db" ""
+} {0 {}}
+
+# -separator 'x'       set output field separator (|)
+do_test shell1-1.14.1 {
+  catchcmd "-separator 'x' test.db" ""
+} {0 {}}
+do_test shell1-1.14.2 {
+  catchcmd "-separator x test.db" ""
+} {0 {}}
+do_test shell1-1.14.3 {
+  set res [catchcmd "-separator" ""]
+  set rc [lindex $res 0]
+  list $rc \
+       [regexp {Error: missing argument to -separator} $res]
+} {1 1}
+
+# -stats               print memory stats before each finalize
+do_test shell1-1.14b.1 {
+  catchcmd "-stats test.db" ""
+} {0 {}}
+
+# -nullvalue 'text'    set text string for NULL values
+do_test shell1-1.15.1 {
+  catchcmd "-nullvalue 'x' test.db" ""
+} {0 {}}
+do_test shell1-1.15.2 {
+  catchcmd "-nullvalue x test.db" ""
+} {0 {}}
+do_test shell1-1.15.3 {
+  set res [catchcmd "-nullvalue" ""]
+  set rc [lindex $res 0]
+  list $rc \
+       [regexp {Error: missing argument to -nullvalue} $res]
+} {1 1}
+
+# -version             show SQLite version
+do_test shell1-1.16.1 {
+  set x [catchcmd "-version test.db" ""]
+} {/3.[0-9.]+ 20\d\d-[01]\d-\d\d \d\d:\d\d:\d\d [0-9a-f]+/}
+
+# Handle no-more-options option
+forcedelete ./--db
+do_test shell1-1.17.1 {
+  catchcmd {-- --db "CREATE TABLE T(c1);"}
+} {0 {}}
+do_test shell1-1.17.2 {
+  catchcmd {-- --db "SELECT name from sqlite_schema;"}
+} {0 T}
+forcedelete ./--db
+
+#----------------------------------------------------------------------------
+# Test cases shell1-2.*: Basic "dot" command token parsing.
+#
+
+# check first token handling
+do_test shell1-2.1.1 {
+  catchcmd "test.db" ".foo"
+} {1 {Error: unknown command or invalid arguments:  "foo". Enter ".help" for help}}
+do_test shell1-2.1.2 {
+  catchcmd "test.db" ".\"foo OFF\""
+} {1 {Error: unknown command or invalid arguments:  "foo OFF". Enter ".help" for help}}
+do_test shell1-2.1.3 {
+  catchcmd "test.db" ".\'foo OFF\'"
+} {1 {Error: unknown command or invalid arguments:  "foo OFF". Enter ".help" for help}}
+
+# unbalanced quotes
+do_test shell1-2.2.1 {
+  catchcmd "test.db" ".\"foo OFF"
+} {1 {Error: unknown command or invalid arguments:  "foo OFF". Enter ".help" for help}}
+do_test shell1-2.2.2 {
+  catchcmd "test.db" ".\'foo OFF"
+} {1 {Error: unknown command or invalid arguments:  "foo OFF". Enter ".help" for help}}
+do_test shell1-2.2.3 {
+  catchcmd "test.db" ".explain \"OFF"
+} {0 {}}
+do_test shell1-2.2.4 {
+  catchcmd "test.db" ".explain \'OFF"
+} {0 {}}
+do_test shell1-2.2.5 {
+  catchcmd "test.db" ".mode \"insert FOO"
+} {1 {Error: mode should be one of: ascii box column csv html insert json line list markdown qbox quote table tabs tcl}}
+do_test shell1-2.2.6 {
+  catchcmd "test.db" ".mode \'insert FOO"
+} {1 {Error: mode should be one of: ascii box column csv html insert json line list markdown qbox quote table tabs tcl}}
+
+# check multiple tokens, and quoted tokens
+do_test shell1-2.3.1 {
+  catchcmd "test.db" ".explain 1"
+} {0 {}}
+do_test shell1-2.3.2 {
+  catchcmd "test.db" ".explain on"
+} {0 {}}
+do_test shell1-2.3.3 {
+  catchcmd "test.db" ".explain \"1 2 3\""
+} {1 {ERROR: Not a boolean value: "1 2 3". Assuming "no".}}
+do_test shell1-2.3.4 {
+  catchcmd "test.db" ".explain \"OFF\""
+} {0 {}}
+do_test shell1-2.3.5 {
+  catchcmd "test.db" ".\'explain\' \'OFF\'"
+} {0 {}}
+do_test shell1-2.3.6 {
+  catchcmd "test.db" ".explain \'OFF\'"
+} {0 {}}
+do_test shell1-2.3.7 {
+  catchcmd "test.db" ".\'explain\' \'OFF\'"
+} {0 {}}
+
+# check quoted args are unquoted
+do_test shell1-2.4.1 {
+  catchcmd "test.db" ".mode FOO"
+} {1 {Error: mode should be one of: ascii box column csv html insert json line list markdown qbox quote table tabs tcl}}
+do_test shell1-2.4.2 {
+  catchcmd "test.db" ".mode csv"
+} {0 {}}
+do_test shell1-2.4.2 {
+  catchcmd "test.db" ".mode \"csv\""
+} {0 {}}
+
+# check that certain quoted arg escapes work
+do_test shell1-2.5.1 {
+  catchcmd ":memory:" ".print \"\\060\\077 \\x3f\\x30 \\a\\t\""
+} [list 0 "0? ?0 \a\t"]
+
+
+#----------------------------------------------------------------------------
+# Test cases shell1-3.*: Basic test that "dot" command can be called.
+#
+
+# .backup ?DB? FILE      Backup DB (default "main") to FILE
+do_test shell1-3.1.1 {
+  catchcmd "test.db" ".backup"
+} {1 {missing FILENAME argument on .backup}}
+forcedelete FOO
+do_test shell1-3.1.2 {
+  catchcmd "test.db" ".backup FOO"
+} {0 {}}
+do_test shell1-3.1.3 {
+  catchcmd "test.db" ".backup FOO BAR"
+} {1 {Error: unknown database FOO}}
+do_test shell1-3.1.4 {
+  # too many arguments
+  catchcmd "test.db" ".backup FOO BAR BAD"
+} {1 {Usage: .backup ?DB? ?OPTIONS? FILENAME}}
+
+# .bail ON|OFF           Stop after hitting an error.  Default OFF
+do_test shell1-3.2.1 {
+  catchcmd "test.db" ".bail"
+} {1 {Usage: .bail on|off}}
+do_test shell1-3.2.2 {
+  catchcmd "test.db" ".bail ON"
+} {0 {}}
+do_test shell1-3.2.3 {
+  catchcmd "test.db" ".bail OFF"
+} {0 {}}
+do_test shell1-3.2.4 {
+  # too many arguments
+  catchcmd "test.db" ".bail OFF BAD"
+} {1 {Usage: .bail on|off}}
+
+ifcapable vtab {
+# .databases             List names and files of attached databases
+do_test shell1-3.3.1 {
+  catchcmd "-csv test.db" ".databases"
+} "/0.+main.+[string map {/ ".{1,2}"} [string range [get_pwd] 0 10]].*/"
+do_test shell1-3.3.2 {
+  # extra arguments ignored
+  catchcmd "test.db" ".databases BAD"
+} "/0.+main.+[string map {/ ".{1,2}"} [string range [get_pwd] 0 10]].*/"
+}
+
+# .dump ?TABLE? ...      Dump the database in an SQL text format
+#                          If TABLE specified, only dump tables matching
+#                          LIKE pattern TABLE.
+do_test shell1-3.4.1 {
+  set res [catchcmd "test.db" ".dump"]
+  list [regexp {BEGIN TRANSACTION;} $res] \
+       [regexp {COMMIT;} $res]
+} {1 1}
+do_test shell1-3.4.2 {
+  set res [catchcmd "test.db" ".dump FOO"]
+  list [regexp {BEGIN TRANSACTION;} $res] \
+       [regexp {COMMIT;} $res]
+} {1 1}
+# The .dump command now accepts multiple arguments
+#do_test shell1-3.4.3 {
+#  # too many arguments
+#  catchcmd "test.db" ".dump FOO BAD"
+#} {1 {Usage: .dump ?--preserve-rowids? ?--newlines? ?LIKE-PATTERN?}}
+
+# .echo ON|OFF           Turn command echo on or off
+do_test shell1-3.5.1 {
+  catchcmd "test.db" ".echo"
+} {1 {Usage: .echo on|off}}
+do_test shell1-3.5.2 {
+  catchcmd "test.db" ".echo ON"
+} {0 {}}
+do_test shell1-3.5.3 {
+  catchcmd "test.db" ".echo OFF"
+} {0 {}}
+do_test shell1-3.5.4 {
+  # too many arguments
+  catchcmd "test.db" ".echo OFF BAD"
+} {1 {Usage: .echo on|off}}
+
+# .exit                  Exit this program
+do_test shell1-3.6.1 {
+  catchcmd "test.db" ".exit"
+} {0 {}}
+
+# .explain ON|OFF        Turn output mode suitable for EXPLAIN on or off.
+do_test shell1-3.7.1 {
+  catchcmd "test.db" ".explain"
+  # explain is the exception to the booleans.  without an option, it turns it on.
+} {0 {}}
+do_test shell1-3.7.2 {
+  catchcmd "test.db" ".explain ON"
+} {0 {}}
+do_test shell1-3.7.3 {
+  catchcmd "test.db" ".explain OFF"
+} {0 {}}
+do_test shell1-3.7.4 {
+  # extra arguments ignored
+  catchcmd "test.db" ".explain OFF BAD"
+} {0 {}}
+
+
+# .header(s) ON|OFF      Turn display of headers on or off
+do_test shell1-3.9.1 {
+  catchcmd "test.db" ".header"
+} {1 {Usage: .headers on|off}}
+do_test shell1-3.9.2 {
+  catchcmd "test.db" ".header ON"
+} {0 {}}
+do_test shell1-3.9.3 {
+  catchcmd "test.db" ".header OFF"
+} {0 {}}
+do_test shell1-3.9.4 {
+  # too many arguments
+  catchcmd "test.db" ".header OFF BAD"
+} {1 {Usage: .headers on|off}}
+
+do_test shell1-3.9.5 {
+  catchcmd "test.db" ".headers"
+} {1 {Usage: .headers on|off}}
+do_test shell1-3.9.6 {
+  catchcmd "test.db" ".headers ON"
+} {0 {}}
+do_test shell1-3.9.7 {
+  catchcmd "test.db" ".headers OFF"
+} {0 {}}
+do_test shell1-3.9.8 {
+  # too many arguments
+  catchcmd "test.db" ".headers OFF BAD"
+} {1 {Usage: .headers on|off}}
+
+# .help                  Show this message
+do_test shell1-3.10.1 {
+  set res [catchcmd "test.db" ".help"]
+  # look for a few of the possible help commands
+  list [regexp {.help} $res] \
+       [regexp {.quit} $res] \
+       [regexp {.show} $res]
+} {1 1 1}
+do_test shell1-3.10.2 {
+  # we allow .help to take extra args (it is help after all)
+  set res [catchcmd "test.db" ".help *"]
+  # look for a few of the possible help commands
+  list [regexp {.help} $res] \
+       [regexp {.quit} $res] \
+       [regexp {.show} $res]
+} {1 1 1}
+
+# .import FILE TABLE     Import data from FILE into TABLE
+do_test shell1-3.11.1 {
+  catchcmd "test.db" ".import"
+} {/1 .ERROR: missing FILE argument.*/}
+do_test shell1-3.11.2 {
+  catchcmd "test.db" ".import FOO"
+} {/1 .ERROR: missing TABLE argument.*/}
+do_test shell1-3.11.3 {
+  # too many arguments
+  catchcmd "test.db" ".import FOO BAR BAD"
+} {/1 .ERROR: extra argument: "BAD".*./}
+
+# .indexes ?TABLE?       Show names of all indexes
+#                          If TABLE specified, only show indexes for tables
+#                          matching LIKE pattern TABLE.
+do_test shell1-3.12.1 {
+  catchcmd "test.db" ".indexes"
+} {0 {}}
+do_test shell1-3.12.2 {
+  catchcmd "test.db" ".indexes FOO"
+} {0 {}}
+do_test shell1-3.12.2-legacy {
+  catchcmd "test.db" ".indices FOO"
+} {0 {}}
+do_test shell1-3.12.3 {
+  # too many arguments
+  catchcmd "test.db" ".indexes FOO BAD"
+} {1 {Usage: .indexes ?LIKE-PATTERN?}}
+
+# .mode MODE ?TABLE?     Set output mode where MODE is one of:
+#                          ascii    Columns/rows delimited by 0x1F and 0x1E
+#                          csv      Comma-separated values
+#                          column   Left-aligned columns.  (See .width)
+#                          html     HTML <table> code
+#                          insert   SQL insert statements for TABLE
+#                          line     One value per line
+#                          list     Values delimited by .separator strings
+#                          tabs     Tab-separated values
+#                          tcl      TCL list elements
+do_test shell1-3.13.1 {
+  catchcmd "test.db" ".mode"
+} {0 {current output mode: list}}
+do_test shell1-3.13.2 {
+  catchcmd "test.db" ".mode FOO"
+} {1 {Error: mode should be one of: ascii box column csv html insert json line list markdown qbox quote table tabs tcl}}
+do_test shell1-3.13.3 {
+  catchcmd "test.db" ".mode csv"
+} {0 {}}
+do_test shell1-3.13.4 {
+  catchcmd "test.db" ".mode column"
+} {0 {}}
+do_test shell1-3.13.5 {
+  catchcmd "test.db" ".mode html"
+} {0 {}}
+do_test shell1-3.13.6 {
+  catchcmd "test.db" ".mode insert"
+} {0 {}}
+do_test shell1-3.13.7 {
+  catchcmd "test.db" ".mode line"
+} {0 {}}
+do_test shell1-3.13.8 {
+  catchcmd "test.db" ".mode list"
+} {0 {}}
+do_test shell1-3.13.9 {
+  catchcmd "test.db" ".mode tabs"
+} {0 {}}
+do_test shell1-3.13.10 {
+  catchcmd "test.db" ".mode tcl"
+} {0 {}}
+do_test shell1-3.13.11 {
+  # extra arguments ignored
+  catchcmd "test.db" ".mode tcl BAD"
+} {0 {}}
+
+# .nullvalue STRING      Print STRING in place of NULL values
+do_test shell1-3.14.1 {
+  catchcmd "test.db" ".nullvalue"
+} {1 {Usage: .nullvalue STRING}}
+do_test shell1-3.14.2 {
+  catchcmd "test.db" ".nullvalue FOO"
+} {0 {}}
+do_test shell1-3.14.3 {
+  # too many arguments
+  catchcmd "test.db" ".nullvalue FOO BAD"
+} {1 {Usage: .nullvalue STRING}}
+
+# .output FILENAME       Send output to FILENAME
+do_test shell1-3.15.1 {
+  catchcmd "test.db" ".output
+.print x"
+} {0 x}
+do_test shell1-3.15.2 {
+  catchcmd "test.db" ".output FOO
+.print x
+.output
+SELECT readfile('FOO');"
+} {0 {x
+}}
+do_test shell1-3.15.3 {
+  # too many arguments
+  catchcmd "test.db" ".output FOO BAD"
+} {1 {ERROR: extra parameter: "BAD".  Usage:
+.output ?FILE?           Send output to FILE or stdout if FILE is omitted
+   If FILE begins with '|' then open it as a pipe.
+   Options:
+     --bom                 Prefix output with a UTF8 byte-order mark
+     -e                    Send output to the system text editor
+     --plain               Use text/plain for -w option
+     -w                    Send output to a web browser
+     -x                    Send output as CSV to a spreadsheet
+child process exited abnormally}}
+
+# .output stdout         Send output to the screen
+do_test shell1-3.16.1 {
+  catchcmd "test.db" ".output stdout"
+} {0 {}}
+do_test shell1-3.16.2 {
+  # too many arguments
+  catchcmd "test.db" ".output stdout BAD"
+} {1 {ERROR: extra parameter: "BAD".  Usage:
+.output ?FILE?           Send output to FILE or stdout if FILE is omitted
+   If FILE begins with '|' then open it as a pipe.
+   Options:
+     --bom                 Prefix output with a UTF8 byte-order mark
+     -e                    Send output to the system text editor
+     --plain               Use text/plain for -w option
+     -w                    Send output to a web browser
+     -x                    Send output as CSV to a spreadsheet
+child process exited abnormally}}
+
+# .prompt MAIN CONTINUE  Replace the standard prompts
+do_test shell1-3.17.1 {
+  catchcmd "test.db" ".prompt"
+} {0 {}}
+do_test shell1-3.17.2 {
+  catchcmd "test.db" ".prompt FOO"
+} {0 {}}
+do_test shell1-3.17.3 {
+  catchcmd "test.db" ".prompt FOO BAR"
+} {0 {}}
+do_test shell1-3.17.4 {
+  # too many arguments
+  catchcmd "test.db" ".prompt FOO BAR BAD"
+} {0 {}}
+
+# .quit                  Exit this program
+do_test shell1-3.18.1 {
+  catchcmd "test.db" ".quit"
+} {0 {}}
+do_test shell1-3.18.2 {
+  # too many arguments
+  catchcmd "test.db" ".quit BAD"
+} {0 {}}
+
+# .read FILENAME         Execute SQL in FILENAME
+do_test shell1-3.19.1 {
+  catchcmd "test.db" ".read"
+} {1 {Usage: .read FILE}}
+do_test shell1-3.19.2 {
+  forcedelete FOO
+  catchcmd "test.db" ".read FOO"
+} {1 {Error: cannot open "FOO"}}
+do_test shell1-3.19.3 {
+  # too many arguments
+  catchcmd "test.db" ".read FOO BAD"
+} {1 {Usage: .read FILE}}
+
+# .restore ?DB? FILE     Restore content of DB (default "main") from FILE
+do_test shell1-3.20.1 {
+  catchcmd "test.db" ".restore"
+} {1 {Usage: .restore ?DB? FILE}}
+do_test shell1-3.20.2 {
+  catchcmd "test.db" ".restore FOO"
+} {0 {}}
+do_test shell1-3.20.3 {
+  catchcmd "test.db" ".restore FOO BAR"
+} {1 {Error: unknown database FOO}}
+do_test shell1-3.20.4 {
+  # too many arguments
+  catchcmd "test.db" ".restore FOO BAR BAD"
+} {1 {Usage: .restore ?DB? FILE}}
+
+ifcapable vtab {
+# .schema ?TABLE?        Show the CREATE statements
+#                          If TABLE specified, only show tables matching
+#                          LIKE pattern TABLE.
+do_test shell1-3.21.1 {
+  catchcmd "test.db" ".schema"
+} {0 {}}
+do_test shell1-3.21.2 {
+  catchcmd "test.db" ".schema FOO"
+} {0 {}}
+do_test shell1-3.21.3 {
+  # too many arguments
+  catchcmd "test.db" ".schema FOO BAD"
+} {1 {Usage: .schema ?--indent? ?--nosys? ?LIKE-PATTERN?}}
+
+do_test shell1-3.21.4 {
+  catchcmd "test.db" {
+     CREATE TABLE t1(x);
+     CREATE VIEW v2 AS SELECT x+1 AS y FROM t1;
+     CREATE VIEW v1 AS SELECT y+1 FROM v2;
+  }
+  catchcmd "test.db" ".schema"
+} {0 {CREATE TABLE t1(x);
+CREATE VIEW v2 AS SELECT x+1 AS y FROM t1
+/* v2(y) */;
+CREATE VIEW v1 AS SELECT y+1 FROM v2
+/* v1("y+1") */;}}
+
+  catch {db eval {DROP VIEW v1; DROP VIEW v2; DROP TABLE t1;}}
+}
+
+# .separator STRING  Change column separator used by output and .import
+do_test shell1-3.22.1 {
+  catchcmd "test.db" ".separator"
+} {1 {Usage: .separator COL ?ROW?}}
+do_test shell1-3.22.2 {
+  catchcmd "test.db" ".separator FOO"
+} {0 {}}
+do_test shell1-3.22.3 {
+  catchcmd "test.db" ".separator ABC XYZ"
+} {0 {}}
+do_test shell1-3.22.4 {
+  # too many arguments
+  catchcmd "test.db" ".separator FOO BAD BAD2"
+} {1 {Usage: .separator COL ?ROW?}}
+
+# .show                  Show the current values for various settings
+do_test shell1-3.23.1 {
+  set res [catchcmd "test.db" ".show"]
+  list [regexp {echo:} $res] \
+       [regexp {explain:} $res] \
+       [regexp {headers:} $res] \
+       [regexp {mode:} $res] \
+       [regexp {nullvalue:} $res] \
+       [regexp {output:} $res] \
+       [regexp {colseparator:} $res] \
+       [regexp {rowseparator:} $res] \
+       [regexp {stats:} $res] \
+       [regexp {width:} $res]
+} {1 1 1 1 1 1 1 1 1 1}
+do_test shell1-3.23.2 {
+  # too many arguments
+  catchcmd "test.db" ".show BAD"
+} {1 {Usage: .show}}
+
+# .stats ON|OFF          Turn stats on or off
+#do_test shell1-3.23b.1 {
+#  catchcmd "test.db" ".stats"
+#} {1 {Usage: .stats on|off|stmt|vmstep}}
+do_test shell1-3.23b.2 {
+  catchcmd "test.db" ".stats ON"
+} {0 {}}
+do_test shell1-3.23b.3 {
+  catchcmd "test.db" ".stats OFF"
+} {0 {}}
+do_test shell1-3.23b.4 {
+  # too many arguments
+  catchcmd "test.db" ".stats OFF BAD"
+} {1 {Usage: .stats ?on|off|stmt|vmstep?}}
+
+# Ticket 7be932dfa60a8a6b3b26bcf7623ec46e0a403ddb 2018-06-07
+# Adverse interaction between .stats and .eqp
+#
+do_test shell1-3.23b.5 {
+  catchcmd "test.db" [string map {"\n    " "\n"} {
+    CREATE TEMP TABLE t1(x);
+    INSERT INTO t1 VALUES(1),(2);
+    .stats on
+    .eqp full
+    SELECT * FROM t1;
+  }]
+} {/1\n2\n/}
+
+# .tables ?TABLE?        List names of tables
+#                          If TABLE specified, only list tables matching
+#                          LIKE pattern TABLE.
+do_test shell1-3.24.1 {
+  catchcmd "test.db" ".tables"
+} {0 {}}
+do_test shell1-3.24.2 {
+  catchcmd "test.db" ".tables FOO"
+} {0 {}}
+do_test shell1-3.24.3 {
+  # too many arguments
+  catchcmd "test.db" ".tables FOO BAD"
+} {0 {}}
+
+# .timeout MS            Try opening locked tables for MS milliseconds
+do_test shell1-3.25.1 {
+  catchcmd "test.db" ".timeout"
+} {0 {}}
+do_test shell1-3.25.2 {
+  catchcmd "test.db" ".timeout zzz"
+  # this should be treated the same as a '0' timeout
+} {0 {}}
+do_test shell1-3.25.3 {
+  catchcmd "test.db" ".timeout 1"
+} {0 {}}
+do_test shell1-3.25.4 {
+  # too many arguments
+  catchcmd "test.db" ".timeout 1 BAD"
+} {0 {}}
+
+# .width NUM NUM ...     Set column widths for "column" mode
+do_test shell1-3.26.1 {
+  catchcmd "test.db" ".width"
+} {0 {}}
+do_test shell1-3.26.2 {
+  catchcmd "test.db" ".width xxx"
+  # this should be treated the same as a '0' width for col 1
+} {0 {}}
+do_test shell1-3.26.3 {
+  catchcmd "test.db" ".width xxx yyy"
+  # this should be treated the same as a '0' width for col 1 and 2
+} {0 {}}
+do_test shell1-3.26.4 {
+  catchcmd "test.db" ".width 1 1"
+  # this should be treated the same as a '1' width for col 1 and 2
+} {0 {}}
+do_test shell1-3.26.5 {
+  catchcmd "test.db" ".mode column\n.header off\n.width 10 -10\nSELECT 'abcdefg', 123456;"
+  # this should be treated the same as a '1' width for col 1 and 2
+} {0 {abcdefg         123456}}
+do_test shell1-3.26.6 {
+  catchcmd "test.db" ".mode column\n.header off\n.width -10 10\nSELECT 'abcdefg', 123456;"
+  # this should be treated the same as a '1' width for col 1 and 2
+} {0 {   abcdefg  123456    }}
+
+
+# .timer ON|OFF          Turn the CPU timer measurement on or off
+do_test shell1-3.27.1 {
+  catchcmd "test.db" ".timer"
+} {1 {Usage: .timer on|off}}
+do_test shell1-3.27.2 {
+  catchcmd "test.db" ".timer ON"
+} {0 {}}
+do_test shell1-3.27.3 {
+  catchcmd "test.db" ".timer OFF"
+} {0 {}}
+do_test shell1-3.27.4 {
+  # too many arguments
+  catchcmd "test.db" ".timer OFF BAD"
+} {1 {Usage: .timer on|off}}
+
+do_test shell1-3-28.1 {
+  catchcmd test.db \
+     ".log stdout\nSELECT coalesce(sqlite_log(123,'hello'),'456');"
+} "0 {(123) hello\n456}"
+
+do_test shell1-3-29.1 {
+  catchcmd "test.db" ".print this is a test"
+} {0 {this is a test}}
+
+# dot-command argument quoting
+do_test shell1-3-30.1 {
+  catchcmd {test.db} {.print "this\"is'a\055test" 'this\"is\\a\055test'}
+} {0 {this"is'a-test this\"is\\a\055test}}
+do_test shell1-3-31.1 {
+  catchcmd {test.db} {.print "this\nis\ta\\test" 'this\nis\ta\\test'}
+} [list 0 "this\nis\ta\\test this\\nis\\ta\\\\test"]
+
+
+# Test the output of the ".dump" command
+#
+do_test shell1-4.1 {
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+  db eval {
+    PRAGMA encoding=UTF16;
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(null), (''), (1), (2.25), ('hello'), (x'807f');
+    CREATE TABLE t3(x,y);
+    INSERT INTO t3 VALUES(1,null), (2,''), (3,1),
+                         (4,2.25), (5,'hello'), (6,x'807f');
+  }
+  catchcmd test.db {.dump}
+} {0 {PRAGMA foreign_keys=OFF;
+BEGIN TRANSACTION;
+CREATE TABLE t1(x);
+INSERT INTO t1 VALUES(NULL);
+INSERT INTO t1 VALUES('');
+INSERT INTO t1 VALUES(1);
+INSERT INTO t1 VALUES(2.25);
+INSERT INTO t1 VALUES('hello');
+INSERT INTO t1 VALUES(X'807f');
+CREATE TABLE t3(x,y);
+INSERT INTO t3 VALUES(1,NULL);
+INSERT INTO t3 VALUES(2,'');
+INSERT INTO t3 VALUES(3,1);
+INSERT INTO t3 VALUES(4,2.25);
+INSERT INTO t3 VALUES(5,'hello');
+INSERT INTO t3 VALUES(6,X'807f');
+COMMIT;}}
+
+
+ifcapable vtab {
+
+# The --preserve-rowids option to .dump
+#
+do_test shell1-4.1.1 {
+  catchcmd test.db {.dump --preserve-rowids}
+} {0 {PRAGMA foreign_keys=OFF;
+BEGIN TRANSACTION;
+CREATE TABLE t1(x);
+INSERT INTO t1(rowid,x) VALUES(1,NULL);
+INSERT INTO t1(rowid,x) VALUES(2,'');
+INSERT INTO t1(rowid,x) VALUES(3,1);
+INSERT INTO t1(rowid,x) VALUES(4,2.25);
+INSERT INTO t1(rowid,x) VALUES(5,'hello');
+INSERT INTO t1(rowid,x) VALUES(6,X'807f');
+CREATE TABLE t3(x,y);
+INSERT INTO t3(rowid,x,y) VALUES(1,1,NULL);
+INSERT INTO t3(rowid,x,y) VALUES(2,2,'');
+INSERT INTO t3(rowid,x,y) VALUES(3,3,1);
+INSERT INTO t3(rowid,x,y) VALUES(4,4,2.25);
+INSERT INTO t3(rowid,x,y) VALUES(5,5,'hello');
+INSERT INTO t3(rowid,x,y) VALUES(6,6,X'807f');
+COMMIT;}}
+
+# If the table contains an INTEGER PRIMARY KEY, do not record a separate
+# rowid column in the output.
+#
+do_test shell1-4.1.2 {
+  db close
+  forcedelete test2.db
+  sqlite3 db test2.db
+  db eval {
+    CREATE TABLE t1(x INTEGER PRIMARY KEY, y);
+    INSERT INTO t1 VALUES(1,null), (2,''), (3,1),
+                         (4,2.25), (5,'hello'), (6,x'807f');
+  }
+  catchcmd test2.db {.dump --preserve-rowids}
+} {0 {PRAGMA foreign_keys=OFF;
+BEGIN TRANSACTION;
+CREATE TABLE t1(x INTEGER PRIMARY KEY, y);
+INSERT INTO t1 VALUES(1,NULL);
+INSERT INTO t1 VALUES(2,'');
+INSERT INTO t1 VALUES(3,1);
+INSERT INTO t1 VALUES(4,2.25);
+INSERT INTO t1 VALUES(5,'hello');
+INSERT INTO t1 VALUES(6,X'807f');
+COMMIT;}}
+
+# Verify that the table named [table] is correctly quoted and that
+# an INTEGER PRIMARY KEY DESC is not an alias for the rowid.
+#
+do_test shell1-4.1.3 {
+  db close
+  forcedelete test2.db
+  sqlite3 db test2.db
+  db eval {
+    CREATE TABLE [table](x INTEGER PRIMARY KEY DESC, y);
+    INSERT INTO [table] VALUES(1,null), (12,''), (23,1),
+                         (34,2.25), (45,'hello'), (56,x'807f');
+  }
+  catchcmd test2.db {.dump --preserve-rowids}
+} {0 {PRAGMA foreign_keys=OFF;
+BEGIN TRANSACTION;
+CREATE TABLE [table](x INTEGER PRIMARY KEY DESC, y);
+INSERT INTO "table"(rowid,x,y) VALUES(1,1,NULL);
+INSERT INTO "table"(rowid,x,y) VALUES(2,12,'');
+INSERT INTO "table"(rowid,x,y) VALUES(3,23,1);
+INSERT INTO "table"(rowid,x,y) VALUES(4,34,2.25);
+INSERT INTO "table"(rowid,x,y) VALUES(5,45,'hello');
+INSERT INTO "table"(rowid,x,y) VALUES(6,56,X'807f');
+COMMIT;}}
+
+# Do not record rowids for a WITHOUT ROWID table.  Also check correct quoting
+# of table names that contain odd characters.
+#
+do_test shell1-4.1.4 {
+  db close
+  forcedelete test2.db
+  sqlite3 db test2.db
+  db eval {
+    CREATE TABLE [ta<>ble](x INTEGER PRIMARY KEY, y) WITHOUT ROWID;
+    INSERT INTO [ta<>ble] VALUES(1,null), (12,''), (23,1),
+                         (34,2.25), (45,'hello'), (56,x'807f');
+  }
+  catchcmd test2.db {.dump --preserve-rowids}
+} {0 {PRAGMA foreign_keys=OFF;
+BEGIN TRANSACTION;
+CREATE TABLE [ta<>ble](x INTEGER PRIMARY KEY, y) WITHOUT ROWID;
+INSERT INTO "ta<>ble" VALUES(1,NULL);
+INSERT INTO "ta<>ble" VALUES(12,'');
+INSERT INTO "ta<>ble" VALUES(23,1);
+INSERT INTO "ta<>ble" VALUES(34,2.25);
+INSERT INTO "ta<>ble" VALUES(45,'hello');
+INSERT INTO "ta<>ble" VALUES(56,X'807f');
+COMMIT;}}
+
+# Do not record rowids if the rowid is inaccessible
+#
+do_test shell1-4.1.5 {
+  db close
+  forcedelete test2.db
+  sqlite3 db test2.db
+  db eval {
+    CREATE TABLE t1(_ROWID_,rowid,oid);
+    INSERT INTO t1 VALUES(1,null,'alpha'), (12,'',99), (23,1,x'b0b1b2');
+  }
+  catchcmd test2.db {.dump --preserve-rowids}
+} {0 {PRAGMA foreign_keys=OFF;
+BEGIN TRANSACTION;
+CREATE TABLE t1(_ROWID_,rowid,oid);
+INSERT INTO t1 VALUES(1,NULL,'alpha');
+INSERT INTO t1 VALUES(12,'',99);
+INSERT INTO t1 VALUES(23,1,X'b0b1b2');
+COMMIT;}}
+
+} else {
+
+do_test shell1-4.1.6 {
+  db close
+  forcedelete test2.db
+  sqlite3 db test2.db
+  db eval {
+    CREATE TABLE t1(x INTEGER PRIMARY KEY, y);
+    INSERT INTO t1 VALUES(1,null), (2,''), (3,1),
+                         (4,2.25), (5,'hello'), (6,x'807f');
+  }
+  catchcmd test2.db {.dump --preserve-rowids}
+} {1 {The --preserve-rowids option is not compatible with SQLITE_OMIT_VIRTUALTABLE}}
+
+}
+
+
+# Test the output of ".mode insert"
+#
+do_test shell1-4.2.1 {
+  catchcmd test.db ".mode insert t1\nselect * from t1;"
+} {0 {INSERT INTO t1 VALUES(NULL);
+INSERT INTO t1 VALUES('');
+INSERT INTO t1 VALUES(1);
+INSERT INTO t1 VALUES(2.25);
+INSERT INTO t1 VALUES('hello');
+INSERT INTO t1 VALUES(X'807f');}}
+
+# Test the output of ".mode insert" with headers
+#
+do_test shell1-4.2.2 {
+  catchcmd test.db ".mode insert t1\n.headers on\nselect * from t1;"
+} {0 {INSERT INTO t1(x) VALUES(NULL);
+INSERT INTO t1(x) VALUES('');
+INSERT INTO t1(x) VALUES(1);
+INSERT INTO t1(x) VALUES(2.25);
+INSERT INTO t1(x) VALUES('hello');
+INSERT INTO t1(x) VALUES(X'807f');}}
+
+# Test the output of ".mode insert"
+#
+do_test shell1-4.2.3 {
+  catchcmd test.db ".mode insert t3\nselect * from t3;"
+} {0 {INSERT INTO t3 VALUES(1,NULL);
+INSERT INTO t3 VALUES(2,'');
+INSERT INTO t3 VALUES(3,1);
+INSERT INTO t3 VALUES(4,2.25);
+INSERT INTO t3 VALUES(5,'hello');
+INSERT INTO t3 VALUES(6,X'807f');}}
+
+# Test the output of ".mode insert" with headers
+#
+do_test shell1-4.2.4 {
+  catchcmd test.db ".mode insert t3\n.headers on\nselect * from t3;"
+} {0 {INSERT INTO t3(x,y) VALUES(1,NULL);
+INSERT INTO t3(x,y) VALUES(2,'');
+INSERT INTO t3(x,y) VALUES(3,1);
+INSERT INTO t3(x,y) VALUES(4,2.25);
+INSERT INTO t3(x,y) VALUES(5,'hello');
+INSERT INTO t3(x,y) VALUES(6,X'807f');}}
+
+# Test the output of ".mode tcl"
+#
+do_test shell1-4.3 {
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+  db eval {
+    PRAGMA encoding=UTF8;
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(null), (''), (1), (2.25), ('hello'), (x'807f');
+  }
+  catchcmd test.db ".mode tcl\nselect * from t1;"
+} {0 {""
+""
+"1"
+"2.25"
+"hello"
+"\200\177"}}
+
+# Test the output of ".mode tcl" with multiple columns
+#
+do_test shell1-4.4 {
+  db eval {
+    CREATE TABLE t2(x,y);
+    INSERT INTO t2 VALUES(null, ''), (1, 2.25), ('hello', x'807f');
+  }
+  catchcmd test.db ".mode tcl\nselect * from t2;"
+} {0 {"" ""
+"1" "2.25"
+"hello" "\200\177"}}
+
+# Test the output of ".mode tcl" with ".nullvalue"
+#
+do_test shell1-4.5 {
+  catchcmd test.db ".mode tcl\n.nullvalue NULL\nselect * from t2;"
+} {0 {"NULL" ""
+"1" "2.25"
+"hello" "\200\177"}}
+
+# Test the output of ".mode tcl" with Tcl reserved characters
+#
+do_test shell1-4.6 {
+  db eval {
+    CREATE TABLE tcl1(x);
+    INSERT INTO tcl1 VALUES('"'), ('['), (']'), ('\{'), ('\}'), (';'), ('$');
+  }
+  foreach {x y} [catchcmd test.db ".mode tcl\nselect * from tcl1;"] break
+  list $x $y [llength $y]
+} {0 {"\""
+"["
+"]"
+"\\{"
+"\\}"
+";"
+"$"} 7}
+
+# Test the output of ".mode quote"
+#
+do_test shell1-4.7 {
+  catchcmd test.db ".mode quote\nselect x'0123456789ABCDEF';"
+} {0 X'0123456789abcdef'}
+
+# Test using arbitrary byte data with the shell via standard input/output.
+#
+do_test shell1-5.0 {
+  #
+  # NOTE: Skip NUL byte because it appears to be incompatible with command
+  #       shell argument parsing.
+  #
+  for {set i 1} {$i < 256} {incr i} {
+    #
+    # NOTE: Due to how the Tcl [exec] command works (i.e. where it treats
+    #       command channels opened for it as textual ones), the carriage
+    #       return character (and on Windows, the end-of-file character)
+    #       cannot be used here.
+    #
+    if {$i==0x0D || ($tcl_platform(platform)=="windows" && $i==0x1A)} {
+      continue
+    }
+    # Tcl 8.7 maps 0x80 through 0x9f into valid UTF8.  So skip those tests.
+    if {$i>=0x80} {
+      if {$i<=0x9F || $tcl_version>=9.0} continue
+      if {$tcl_platform(platform)=="windows"} continue
+    }
+    if {$i>=0xE0 && $tcl_platform(os)=="OpenBSD"}  continue
+    if {$i>=0xE0 && $i<=0xEF && $tcl_platform(os)=="Linux"}  continue
+    set hex [format %02X $i]
+    set char [subst \\x$hex]; set oldChar $char
+    set escapes [list]
+    if {$tcl_platform(platform)=="windows"} {
+      #
+      # NOTE: On Windows, we need to escape all the whitespace characters,
+      #       the alarm (\a) character, and those with special meaning to
+      #       the SQLite shell itself.
+      #
+      set escapes [list \
+          \a \\a \b \\b \t \\t \n \\n \v \\v \f \\f \r \\r \
+          " " "\" \"" \" \\\" \\ \\\\]
+    } else {
+      #
+      # NOTE: On Unix, we need to escape most of the whitespace characters
+      #       and those with special meaning to the SQLite shell itself.
+      #       The alarm (\a), backspace (\b), and carriage-return (\r)
+      #       characters do not appear to require escaping on Unix.  For
+      #       the alarm and backspace characters, this is probably due to
+      #       differences in the command shell.  For the carriage-return,
+      #       it is probably due to differences in how Tcl handles command
+      #       channel end-of-line translations.
+      #
+      set escapes [list \
+          \t \\t \n \\n \v \\v \f \\f \
+          " " "\" \"" \" \\\" \\ \\\\]
+    }
+    set char [string map $escapes $char]
+    set x [catchcmdex test.db ".print \"$char\"\n"]
+    set code [lindex $x 0]
+    set res [lindex $x 1]
+    if {$code ne "0"} {
+      error "failed with error: $res"
+    }
+    if {$res ne "$oldChar\n"} {
+      if {[llength $res] > 0} {
+        set got [format %02X [scan $res %c]]
+      } else {
+        set got <empty>
+      }
+      error "failed with byte $hex mismatch, got $got"
+    }
+  }
+} {}
+
+# These test cases do not work on MinGW
+if 0 {
+
+# The string used here is the word "test" in Chinese.
+# In UTF-8, it is encoded as: \xE6\xB5\x8B\xE8\xAF\x95
+set test \u6D4B\u8BD5
+
+do_test shell1-6.0 {
+  set fileName $test; append fileName .db
+  catch {forcedelete $fileName}
+  set x [catchcmdex $fileName "CREATE TABLE t1(x);\n.schema\n"]
+  set code [lindex $x 0]
+  set res [string trim [lindex $x 1]]
+  if {$code ne "0"} {
+    error "failed with error: $res"
+  }
+  if {$res ne "CREATE TABLE t1(x);"} {
+    error "failed with mismatch: $res"
+  }
+  if {![file exists $fileName]} {
+    error "file \"$fileName\" (Unicode) does not exist"
+  }
+  forcedelete $fileName
+} {}
+
+do_test shell1-6.1 {
+  catch {forcedelete test3.db}
+  set x [catchcmdex test3.db \
+      "CREATE TABLE [encoding convertto utf-8 $test](x);\n.schema\n"]
+  set code [lindex $x 0]
+  set res [string trim [lindex $x 1]]
+  if {$code ne "0"} {
+    error "failed with error: $res"
+  }
+  if {$res ne "CREATE TABLE ${test}(x);"} {
+    error "failed with mismatch: $res"
+  }
+  forcedelete test3.db
+} {}
+}
+
+db close
+forcedelete test.db test.db-journal test.db-wal
+sqlite3 db test.db
+
+# The shell tool ".schema" command uses virtual table "pragma_database_list"
+#
+ifcapable vtab {
+
+do_test shell1-7.1.1 {
+  db eval {
+    CREATE TABLE Z (x TEXT PRIMARY KEY);
+    CREATE TABLE _ (x TEXT PRIMARY KEY);
+    CREATE TABLE YY (x TEXT PRIMARY KEY);
+    CREATE TABLE __ (x TEXT PRIMARY KEY);
+    CREATE TABLE WWW (x TEXT PRIMARY KEY);
+    CREATE TABLE ___ (x TEXT PRIMARY KEY);
+  }
+} {}
+do_test shell1-7.1.2 {
+  catchcmd "test.db" ".schema _"
+} {0 {CREATE TABLE Z (x TEXT PRIMARY KEY);
+CREATE TABLE _ (x TEXT PRIMARY KEY);}}
+do_test shell1-7.1.3 {
+  catchcmd "test.db" ".schema \"\\\\_\""
+} {0 {CREATE TABLE _ (x TEXT PRIMARY KEY);}}
+do_test shell1-7.1.4 {
+  catchcmd "test.db" ".schema __"
+} {0 {CREATE TABLE YY (x TEXT PRIMARY KEY);
+CREATE TABLE __ (x TEXT PRIMARY KEY);}}
+do_test shell1-7.1.5 {
+  catchcmd "test.db" ".schema \"\\\\_\\\\_\""
+} {0 {CREATE TABLE __ (x TEXT PRIMARY KEY);}}
+do_test shell1-7.1.6 {
+  catchcmd "test.db" ".schema ___"
+} {0 {CREATE TABLE WWW (x TEXT PRIMARY KEY);
+CREATE TABLE ___ (x TEXT PRIMARY KEY);}}
+do_test shell1-7.1.7 {
+  catchcmd "test.db" ".schema \"\\\\_\\\\_\\\\_\""
+} {0 {CREATE TABLE ___ (x TEXT PRIMARY KEY);}}
+
+}
+
+# Test case for the ieee754 and decimal extensions in the shell.
+# See the "floatingpoint.html" file in the documentation for more
+# information.
+#
+do_test shell1-8.1 {
+  catchcmd ":memory:" {
+    -- The pow2 table will hold all the necessary powers of two.
+    CREATE TABLE pow2(x INTEGER PRIMARY KEY, v TEXT);
+    WITH RECURSIVE c(x,v) AS (
+      VALUES(0,'1')
+      UNION ALL
+      SELECT x+1, decimal_mul(v,'2') FROM c WHERE x+1<=971
+    ) INSERT INTO pow2(x,v) SELECT x, v FROM c;
+    WITH RECURSIVE c(x,v) AS (
+      VALUES(-1,'0.5')
+      UNION ALL
+      SELECT x-1, decimal_mul(v,'0.5') FROM c WHERE x-1>=-1075
+    ) INSERT INTO pow2(x,v) SELECT x, v FROM c;
+    
+    -- This query finds the decimal representation of each value in the "c" table.
+    WITH c(n) AS (VALUES(47.49))
+                     ----XXXXX----------- Replace with whatever you want
+    SELECT decimal_mul(ieee754_mantissa(c.n),pow2.v)
+      FROM pow2, c WHERE pow2.x=ieee754_exponent(c.n);
+  }
+} {0 47.49000000000000198951966012828052043914794921875}
+do_test shell1-8.2 {
+  catchcmd :memory: {
+.mode box
+SELECT ieee754(47.49) AS x;
+  }
+} {0 {┌───────────────────────────────┐
+│               x               │
+├───────────────────────────────┤
+│ ieee754(6683623321994527,-47) │
+└───────────────────────────────┘}}
+do_test shell1-8.3 {
+  catchcmd ":memory: --box" {
+    select ieee754(6683623321994527,-47) as x;
+  }
+} {0 {┌───────┐
+│   x   │
+├───────┤
+│ 47.49 │
+└───────┘}}
+do_test shell1-8.4 {
+  catchcmd ":memory: --table" {SELECT ieee754_mantissa(47.49) AS M, ieee754_exponent(47.49) AS E;}
+} {0 {+------------------+-----+
+|        M         |  E  |
++------------------+-----+
+| 6683623321994527 | -47 |
++------------------+-----+}}
+do_test shell1-8.5 {
+  catchcmd ":memory: --box" {
+create table t(a text, b int);
+insert into t values ('too long for one line', 1), ('shorter', NULL);
+.header on
+.width 10 10
+.nullvalue NADA
+select * from t;}
+} {0 {┌────────────┬────────────┐
+│     a      │     b      │
+├────────────┼────────────┤
+│ too long f │ 1          │
+│ or one lin │            │
+│ e          │            │
+├────────────┼────────────┤
+│ shorter    │ NADA       │
+└────────────┴────────────┘}}
+
+#----------------------------------------------------------------------------
+# Test cases shell1-9.*: Basic test that "dot" commands and SQL intermix ok.
+#
+do_test shell1-9.1 {
+  catchcmd :memory: {
+.mode csv
+/*
+x */ select 1,2; --x
+ -- .nada
+;
+.mode csv
+--x
+select 2,1; select 3,4;
+}
+} {0 {1,2
+2,1
+3,4}}
+
+#----------------------------------------------------------------------------
+# Test cases shell1-10.*: Test that certain static extensions are there.
+#
+do_test shell1-10.1 {
+  catchcmd :memory: {
+.mode list
+.header off
+select base64(base64(cast('digity-doo' as blob))),
+ base85(base85(cast('digity-doo' as blob)));
+}
+} {0 digity-doo|digity-doo}
+
+finish_test
diff --git a/test/shell2.test b/test/shell2.test
new file mode 100644
index 0000000000000000000000000000000000000000..ee5ae4bdd9c6ea6bba60263b268eaf4a21921802
--- /dev/null
+++ b/test/shell2.test
@@ -0,0 +1,280 @@
+# 2009 Nov 11
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# TESTRUNNER: shell
+#
+# The focus of this file is testing the CLI shell tool.
+#
+# $Id: shell2.test,v 1.7 2009/07/17 16:54:48 shaneh Exp $
+#
+
+# Test plan:
+#
+#   shell2-1.*: Misc. test of various tickets and reported errors.
+#
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set CLI [test_find_cli]
+db close
+forcedelete test.db test.db-journal test.db-wal
+sqlite3 db test.db
+
+
+#----------------------------------------------------------------------------
+#   shell2-1.*: Misc. test of various tickets and reported errors.
+#
+
+# Batch mode not creating databases.  
+# Reported on mailing list by Ken Zalewski.
+# Ticket [aeff892c57].
+do_test shell2-1.1.1 {
+  forcedelete foo.db
+  set rc [ catchcmd "-batch foo.db" "CREATE TABLE t1(a);" ]
+  set fexist [file exist foo.db]
+  list $rc $fexist
+} {{0 {}} 1}
+
+# Shell silently ignores extra parameters.
+# Ticket [f5cb008a65].
+do_test shell2-1.2.1 {
+  catchcmdex {:memory: "select+3" "select+4"}
+} {0 {3
+4
+}}
+
+# Test a problem reported on the mailing list. The shell was at one point
+# returning the generic SQLITE_ERROR message ("SQL error or missing database")
+# instead of the "too many levels..." message in the test below.
+#
+do_test shell2-1.3 {
+  catchcmd "-batch test.db" {
+    PRAGMA recursive_triggers = ON;
+    CREATE TABLE t5(a PRIMARY KEY, b, c);
+    INSERT INTO t5 VALUES(1, 2, 3);
+    CREATE TRIGGER au_tble AFTER UPDATE ON t5 BEGIN
+      UPDATE OR IGNORE t5 SET a = new.a, c = 10;
+    END;
+
+    UPDATE OR REPLACE t5 SET a = 4 WHERE a = 1;
+  }
+} {1 {Runtime error near line 9: too many levels of trigger recursion}}
+
+
+
+# Shell not echoing all commands with echo on.
+# Ticket [eb620916be].
+
+# Test with echo off
+# NB. whitespace is important
+do_test shell2-1.4.1 {
+  forcedelete foo.db
+  catchcmd "foo.db" {CREATE TABLE foo(a);
+INSERT INTO foo(a) VALUES(1);
+SELECT * FROM foo;}
+} {0 1}
+
+# Test with echo on using command line option
+# NB. whitespace is important
+do_test shell2-1.4.2 {
+  forcedelete foo.db
+  catchcmd "-echo foo.db" {CREATE TABLE foo(a);
+INSERT INTO foo(a) VALUES(1);
+SELECT * FROM foo;}
+} {0 {CREATE TABLE foo(a);
+INSERT INTO foo(a) VALUES(1);
+SELECT * FROM foo;
+1}}
+
+# Test with echo on using dot command
+# NB. whitespace is important
+do_test shell2-1.4.3 {
+  forcedelete foo.db
+  catchcmd "foo.db" {.echo ON
+CREATE TABLE foo(a);
+INSERT INTO foo(a) VALUES(1);
+SELECT * FROM foo;}
+} {0 {CREATE TABLE foo(a);
+INSERT INTO foo(a) VALUES(1);
+SELECT * FROM foo;
+1}}
+
+# Test with echo on using dot command and 
+# turning off mid- processing.
+# NB. whitespace is important
+do_test shell2-1.4.4 {
+  forcedelete foo.db
+  catchcmd "foo.db" {.echo ON
+CREATE TABLE foo(a);
+.echo OFF
+INSERT INTO foo(a) VALUES(1);
+SELECT * FROM foo;}
+} {0 {CREATE TABLE foo(a);
+.echo OFF
+1}}
+
+# Test with echo on using dot command and 
+# multiple commands per line.
+# NB. whitespace is important
+do_test shell2-1.4.5 {
+  forcedelete foo.db
+  catchcmdex "foo.db" {.echo ON
+CREATE TABLE foo1(a);
+INSERT INTO foo1(a) VALUES(1);
+CREATE TABLE foo2(b);
+INSERT INTO foo2(b) VALUES(1);
+SELECT * FROM foo1; SELECT * FROM foo2;
+INSERT INTO foo1(a) VALUES(2); INSERT INTO foo2(b) VALUES(2);
+SELECT * FROM foo1; SELECT * FROM foo2;
+}
+} {0 {CREATE TABLE foo1(a);
+INSERT INTO foo1(a) VALUES(1);
+CREATE TABLE foo2(b);
+INSERT INTO foo2(b) VALUES(1);
+SELECT * FROM foo1; SELECT * FROM foo2;
+1
+1
+INSERT INTO foo1(a) VALUES(2); INSERT INTO foo2(b) VALUES(2);
+SELECT * FROM foo1; SELECT * FROM foo2;
+1
+2
+1
+2
+}}
+
+# Test with echo on and headers on using dot command and 
+# multiple commands per line.
+# NB. whitespace is important
+do_test shell2-1.4.6 {
+  forcedelete foo.db
+  catchcmdex "foo.db" {.echo ON
+.headers ON
+CREATE TABLE foo1(a);
+INSERT INTO foo1(a) VALUES(1);
+CREATE TABLE foo2(b);
+INSERT INTO foo2(b) VALUES(1);
+SELECT * FROM foo1; SELECT * FROM foo2;
+INSERT INTO foo1(a) VALUES(2); INSERT INTO foo2(b) VALUES(2);
+SELECT * FROM foo1; SELECT * FROM foo2;
+}
+} {0 {.headers ON
+CREATE TABLE foo1(a);
+INSERT INTO foo1(a) VALUES(1);
+CREATE TABLE foo2(b);
+INSERT INTO foo2(b) VALUES(1);
+SELECT * FROM foo1; SELECT * FROM foo2;
+a
+1
+b
+1
+INSERT INTO foo1(a) VALUES(2); INSERT INTO foo2(b) VALUES(2);
+SELECT * FROM foo1; SELECT * FROM foo2;
+a
+1
+2
+b
+1
+2
+}}
+
+# Test for rejection of incomplete input at EOF.
+# Reported at https://sqlite.org/forum/forumpost/718f489a43be3197
+do_test shell2-1.4.7 {
+  catchcmd ":memory:" {
+ SELECT 'unclosed;}
+} {1 {Parse error near line 2: unrecognized token: "'unclosed;"
+  SELECT 'unclosed;
+         ^--- error here}}
+
+# Verify that safe mode rejects certain UDFs
+# Reported at https://sqlite.org/forum/forumpost/07beac8056151b2f
+do_test shell2-1.4.8 {
+  catchcmd "-safe :memory:" {
+ SELECT edit('DoNotCare');}
+} {1 {line 2: cannot use the edit() function in safe mode}}
+do_test shell2-1.4.9 {
+  catchcmd "-safe :memory:" {
+ SELECT writefile('DoNotCare', x'');}
+} {1 {line 2: cannot use the writefile() function in safe mode}}
+
+# Verify that .clone handles sequence table.
+# See https://sqlite.org/forum/forumpost/71ff9e6c4c
+do_test shell2-1.4.9 {
+  forcedelete clone.db
+  set res [catchcmd :memory: [string trim {
+ CREATE TABLE t(id INTEGER PRIMARY KEY AUTOINCREMENT);
+ INSERT INTO t VALUES (1),(2);
+.clone clone.db
+.open clone.db
+ SELECT max(seq) FROM sqlite_sequence;}]]
+} {0 {t... done
+done
+2}}
+
+ifcapable vtab {
+# Verify that generate_series stays sane near 64-bit range boundaries.
+# See overflow report at https://sqlite.org/forum/forumpost/5d34ce5280
+do_test shell2-1.4.10 {
+ set res [catchcmd :memory: [string trim {
+ SELECT * FROM generate_series(9223372036854775807,9223372036854775807,1);
+ SELECT * FROM generate_series(9223372036854775807,9223372036854775807,-1);
+ SELECT avg(rowid),min(value),max(value) FROM generate_series(
+  -9223372036854775808,9223372036854775807,1085102592571150095);
+ SELECT * FROM generate_series(-9223372036854775808,9223372036854775807,
+  9223372036854775807);
+ SELECT value,rowid FROM generate_series(-4611686018427387904,
+  4611686018427387904, 4611686018427387904) ORDER BY value DESC;
+ SELECT * FROM generate_series(0,-2,-1);
+ SELECT * FROM generate_series(0,-2);
+ SELECT * FROM generate_series(0,2) LIMIT 3;}]]
+} {0 {9223372036854775807
+9223372036854775807
+9.5|-9223372036854775808|9223372036854775807
+-9223372036854775808
+-1
+9223372036854775806
+4611686018427387904|3
+0|2
+-4611686018427387904|1
+0
+-1
+-2
+0
+1
+2}}
+}  ;# ifcapable vtab
+
+ifcapable vtab {
+# Bug discovered while messing around, .import hangs with
+# bit 7 set in column separator.
+do_test shell2-1.4.11 {
+  forcedelete dummy.csv
+  set df [open dummy.csv w]
+  puts $df dog,cat
+  close $df
+  set res [catchcmd :memory: [string trim {
+ CREATE TABLE t(line text);
+.mode ascii
+.separator "\377" "\n"
+.import dummy.csv t
+ SELECT count(*) FROM t;}]]
+} {0 1}
+} ;# ifcapable vtab
+
+# Bug from forum post 7cbe081746dd3803
+# Keywords as column names were producing an error message.
+do_test shell2-1.4.12 {
+  set res [catchcmd :memory: [string trim {
+ CREATE TABLE "group"("order" text);
+ INSERT INTO "group" VALUES ('ABC');
+.sha3sum}]]
+} {0 ca08bc02b7e95c7df431a3a4b1cc0f8d8743914793473f55b5558e03}
+
+
+finish_test
diff --git a/test/shell3.test b/test/shell3.test
new file mode 100644
index 0000000000000000000000000000000000000000..ef3ea784ff7f4579f6f902ccda41ec8ea1d31d96
--- /dev/null
+++ b/test/shell3.test
@@ -0,0 +1,148 @@
+# 2009 Dec 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# TESTRUNNER: shell
+#
+# The focus of this file is testing the CLI shell tool.
+#
+# $Id: shell2.test,v 1.7 2009/07/17 16:54:48 shaneh Exp $
+#
+
+# Test plan:
+#
+#   shell3-1.*: Basic tests for running SQL statments from command line.
+#   shell3-2.*: Basic tests for running SQL file from command line.
+#   shell3-3.*: Basic tests for processing odd SQL constructs.
+#
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set CLI [test_cli_invocation]
+db close
+forcedelete test.db test.db-journal test.db-wal
+sqlite3 db test.db
+
+
+# There are inconsistencies in command-line argument quoting on Windows.
+# In particular, individual applications are responsible for command-line
+# parsing in Windows, not the shell.  Depending on whether the sqlite3.exe
+# program is compiled with MinGW or MSVC, the command-line parsing is
+# different.  This causes problems for the tests below.  To avoid
+# issues, these tests are disabled for windows.
+#
+if {$::tcl_platform(platform)=="windows"} {
+  finish_test
+  return
+}
+
+#----------------------------------------------------------------------------
+#   shell3-1.*: Basic tests for running SQL statments from command line.
+#
+
+# Run SQL statement from command line
+do_test shell3-1.1 {
+  forcedelete foo.db
+  set rc [ catchcmd "foo.db \"CREATE TABLE t1(a);\"" ]
+  set fexist [file exist foo.db]
+  list $rc $fexist
+} {{0 {}} 1}
+do_test shell3-1.2 {
+  catchcmd "foo.db" ".tables"
+} {0 t1}
+do_test shell3-1.3 {
+  catchcmd "foo.db \"DROP TABLE t1;\""
+} {0 {}}
+do_test shell3-1.4 {
+  catchcmd "foo.db" ".tables"
+} {0 {}}
+do_test shell3-1.5 {
+  catchcmd "foo.db \"CREATE TABLE t1(a); DROP TABLE t1;\""
+} {0 {}}
+do_test shell3-1.6 {
+  catchcmd "foo.db" ".tables"
+} {0 {}}
+do_test shell3-1.7 {
+  catchcmd "foo.db \"CREATE TABLE\""
+} {1 {Error: in prepare, incomplete input}}
+
+#----------------------------------------------------------------------------
+#   shell3-2.*: Basic tests for running SQL file from command line.
+#
+
+# Run SQL file from command line
+do_test shell3-2.1 {
+  forcedelete foo.db
+  set rc [ catchcmd "foo.db" "CREATE TABLE t1(a);" ]
+  set fexist [file exist foo.db]
+  list $rc $fexist
+} {{0 {}} 1}
+do_test shell3-2.2 {
+  catchcmd "foo.db" ".tables"
+} {0 t1}
+do_test shell3-2.3 {
+  catchcmd "foo.db" "DROP TABLE t1;"
+} {0 {}}
+do_test shell3-2.4 {
+  catchcmd "foo.db" ".tables"
+} {0 {}}
+do_test shell3-2.5 {
+  catchcmd "foo.db" "CREATE TABLE t1(a); DROP TABLE t1;"
+} {0 {}}
+do_test shell3-2.6 {
+  catchcmd "foo.db" ".tables"
+} {0 {}}
+do_test shell3-2.7 {
+  catchcmd "foo.db" "CREATE TABLE"
+} {1 {Parse error near line 1: incomplete input}}
+
+
+#----------------------------------------------------------------------------
+#   shell3-3.*: Basic tests for processing odd SQL constructs.
+#
+
+# Run combinations of odd identifiers, comments, semicolon placement
+do_test shell3-3.1 {
+  forcedelete foo.db
+  set rc [ catchcmd "foo.db" {CREATE TABLE t1("
+a--.
+" --x
+); CREATE TABLE t2("a[""b""]");
+.header on
+INSERT INTO t1 VALUES ('
+x''y');
+INSERT INTO t2 VALUES ('
+/*.
+.*/ x
+''y');
+SELECT * from t1 limit 1;
+SELECT * from t2 limit 1;
+} ]
+  set fexist [file exist foo.db]
+  list $rc $fexist
+} {{0 {
+a--.
+
+
+x'y
+a["b"]
+
+/*.
+.*/ x
+'y}} 1}
+
+do_test shell3-3.2 {
+  catchcmd "" {
+.open xyz.db
+SELECT ;
+  }
+} {1 {Parse error near line 3: near ";": syntax error
+  SELECT ;
+         ^--- error here}}
+
+finish_test
diff --git a/test/shell4.test b/test/shell4.test
new file mode 100644
index 0000000000000000000000000000000000000000..4b7e9b8eec91106111a5dbad9f9b6993c880e9c9
--- /dev/null
+++ b/test/shell4.test
@@ -0,0 +1,157 @@
+# 2010 July 28
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# TESTRUNNER: shell
+#
+# The focus of this file is testing the CLI shell tool.
+# These tests are specific to the .stats command.
+#
+# 2015-03-19:  Added tests for .trace
+
+# Test plan:
+#
+#   shell4-1.*: Basic tests specific to the "stats" command.
+#   shell4-2.*: Basic tests for ".trace"
+#   shell4-3.*: The ".read" command takes the shell out of interactive mode
+#   shell4-4.*: Input redirects cannot recurse too much
+#
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set CLI [test_cli_invocation]
+set CLI_ONLY [test_find_cli]
+db close
+forcedelete test.db test.db-journal test.db-wal
+sqlite3 db test.db
+
+#----------------------------------------------------------------------------
+# Test cases shell4-1.*: Tests specific to the "stats" command.
+#
+
+# should default to off
+do_test shell4-1.1.1 {
+  set res [catchcmd "test.db" ".show"]
+  list [regexp {stats: off} $res]
+} {1}
+
+do_test shell4-1.1.2 {
+  set res [catchcmd "test.db" ".show"]
+  list [regexp {stats: on} $res]
+} {0}
+
+# -stats should turn it on
+do_test shell4-1.2.1 {
+  set res [catchcmd "-stats test.db" ".show"]
+  list [regexp {stats: on} $res]
+} {1}
+
+do_test shell4-1.2.2 {
+  set res [catchcmd "-stats test.db" ".show"]
+  list [regexp {stats: off} $res]
+} {0}
+
+# .stats ON|OFF          Turn stats on or off
+#do_test shell4-1.3.1 {
+#  catchcmd "test.db" ".stats"
+#} {1 {Usage: .stats on|off}}
+do_test shell4-1.3.2 {
+  catchcmd "test.db" ".stats ON"
+} {0 {}}
+do_test shell4-1.3.3 {
+  catchcmd "test.db" ".stats OFF"
+} {0 {}}
+do_test shell4-1.3.4 {
+  # too many arguments
+  catchcmd "test.db" ".stats OFF BAD"
+} {1 {Usage: .stats ?on|off|stmt|vmstep?}}
+
+# NB. whitespace is important
+do_test shell4-1.4.1 {
+  set res [catchcmd "test.db" {.show}]
+  list [regexp {stats: off} $res]
+} {1}
+
+do_test shell4-1.4.2 {
+  set res [catchcmd "test.db" {.stats ON
+.show
+}]
+  list [regexp {stats: on} $res]
+} {1}
+
+do_test shell4-1.4.3 {
+  set res [catchcmd "test.db" {.stats OFF
+.show
+}]
+  list [regexp {stats: off} $res]
+} {1}
+
+# make sure stats not present when off
+do_test shell4-1.5.1 {
+  set res [catchcmd "test.db" {SELECT 1;}]
+  list [regexp {Memory Used} $res] \
+       [regexp {Heap Usage} $res] \
+       [regexp {Autoindex Inserts} $res]
+} {0 0 0}
+
+# make sure stats are present when on
+do_test shell4-1.5.2 {
+  set res [catchcmd "test.db" {.stats ON
+SELECT 1;
+}]
+  list [regexp {Memory Used} $res] \
+       [regexp {Heap Usage} $res] \
+       [regexp {Autoindex Inserts} $res]
+} {1 1 1}
+
+ifcapable trace {
+do_test shell4-2.1 {
+  catchcmd ":memory:" "CREATE TABLE t1(x);\n.trace --unknown"
+} {1 {Unknown option "--unknown" on ".trace"}}
+do_test shell4-2.2 {
+  catchcmd ":memory:" "CREATE TABLE t1(x);\n.trace off\n.trace off\n"
+} {0 {}}
+do_test shell4-2.3 {
+  catchcmd ":memory:" ".trace stdout\n.dump\n.trace off\n"
+} {/^0 {SELECT.*}$/}
+do_test shell4-2.4 {
+  catchcmd ":memory:" ".trace stdout\nCREATE TABLE t1(x);SELECT * FROM t1;"
+} {0 {CREATE TABLE t1(x);
+SELECT * FROM t1;}}
+do_test shell4-2.5 {
+  catchcmd ":memory:" "CREATE TABLE t1(x);\n.trace stdout\nSELECT * FROM t1;"
+} {0 {SELECT * FROM t1;}}
+do_test shell4-2.6 {
+  catchcmd ":memory:" {
+CREATE TABLE t1(x);
+.trace --stmt stdout
+SELECT * FROM t1;}
+} {0 {SELECT * FROM t1;}}
+}
+
+do_test shell4-3.1 {
+  set fd [open t1.txt wb]
+  puts $fd "SELECT 'squirrel';"
+  close $fd
+  exec $::CLI_ONLY :memory: --interactive ".read t1.txt"
+} {squirrel}
+do_test shell4-3.2 {
+  set fd [open t1.txt wb]
+  puts $fd "SELECT 'pound: \302\243';"
+  close $fd
+  exec $::CLI_ONLY :memory: --interactive ".read t1.txt"
+} {pound: £}
+
+do_test shell4-4.1 {
+  set fd [open t1.txt wb]
+  puts $fd ".read t1.txt"
+  close $fd
+  catchcmd ":memory:" ".read t1.txt"
+} {1 {Input nesting limit (25) reached at line 1. Check recursion.}}
+
+finish_test
diff --git a/test/shell5.test b/test/shell5.test
new file mode 100644
index 0000000000000000000000000000000000000000..8eb905974b9ffb471715151de1b3cfb3ae8718f9
--- /dev/null
+++ b/test/shell5.test
@@ -0,0 +1,608 @@
+# 2010 August 4
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# TESTRUNNER: shell
+#
+# The focus of this file is testing the CLI shell tool.
+# These tests are specific to the .import command.
+#
+# $Id: shell5.test,v 1.7 2009/07/17 16:54:48 shaneh Exp $
+#
+
+# Test plan:
+#
+#   shell5-1.*: Basic tests specific to the ".import" command.
+#
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set CLI [test_cli_invocation]
+db close
+forcedelete test.db test.db-journal test.db-wal
+
+#----------------------------------------------------------------------------
+# Test cases shell5-1.*: Basic handling of the .import and .separator commands.
+#
+
+# .import FILE TABLE     Import data from FILE into TABLE
+do_test shell5-1.1.1 {
+  catchcmd "test.db" ".import"
+} {/1 .ERROR: missing FILE argument.*/}
+do_test shell5-1.1.2 {
+  catchcmd "test.db" ".import FOO"
+} {/1 .ERROR: missing TABLE argument.*/}
+do_test shell5-1.1.3 {
+  # too many arguments
+  catchcmd "test.db" ".import FOO BAR BAD"
+} {/1 .ERROR: extra argument.*/}
+
+# .separator STRING      Change separator used by output mode and .import
+do_test shell5-1.2.1 {
+  catchcmd "test.db" ".separator"
+} {1 {Usage: .separator COL ?ROW?}}
+do_test shell5-1.2.2 {
+  catchcmd "test.db" ".separator ONE"
+} {0 {}}
+do_test shell5-1.2.3 {
+  catchcmd "test.db" ".separator ONE TWO"
+} {0 {}}
+do_test shell5-1.2.4 {
+  # too many arguments
+  catchcmd "test.db" ".separator ONE TWO THREE"
+} {1 {Usage: .separator COL ?ROW?}}
+
+# column separator should default to "|"
+do_test shell5-1.3.1.1 {
+  set res [catchcmd "test.db" ".show"]
+  list [regexp {colseparator: \"\|\"} $res]
+} {1}
+
+# row separator should default to "\n"
+do_test shell5-1.3.1.2 {
+  set res [catchcmd "test.db" ".show"]
+  list [regexp {rowseparator: \"\\n\"} $res]
+} {1}
+
+# set separator to different value.
+# check that .show reports new value
+do_test shell5-1.3.2 {
+  set res [catchcmd "test.db" {.separator ,
+.show}]
+  list [regexp {separator: \",\"} $res]
+} {1}
+
+# import file doesn't exist
+do_test shell5-1.4.1 {
+  forcedelete FOO
+  set res [catchcmd "test.db" {CREATE TABLE t1(a, b);
+.import FOO t1}]
+} {1 {Error: cannot open "FOO"}}
+
+# the remainder of these test cases require virtual tables.
+#
+ifcapable !vtab {
+  puts "Skipping subsequent tests due to SQLITE_OMIT_VIRTUALTABLE"
+  finish_test
+  return
+}
+
+# empty import file
+do_test shell5-1.4.2 {
+  forcedelete shell5.csv
+  set in [open shell5.csv w]
+  close $in
+  set res [catchcmd ":memory:" {ATTACH 'test.db' AS test;
+.import -schema test shell5.csv t1
+SELECT COUNT(*) FROM test.t1;}]
+} {0 0}
+
+# import file with 1 row, 1 column (expecting 2 cols)
+do_test shell5-1.4.3 {
+  set in [open shell5.csv w]
+  puts $in "1"
+  close $in
+  set res [catchcmd ":memory:" {ATTACH 'test.db' AS test;
+.import -schema test shell5.csv t1}]
+} {1 {shell5.csv:1: expected 2 columns but found 1 - filling the rest with NULL}}
+
+# import file with 1 row, 3 columns (expecting 2 cols)
+do_test shell5-1.4.4 {
+  set in [open shell5.csv w]
+  puts $in "1|2|3"
+  close $in
+  set res [catchcmd ":memory:" {ATTACH 'test.db' AS test;
+.import --schema test shell5.csv t1}]
+} {1 {shell5.csv:1: expected 2 columns but found 3 - extras ignored}}
+
+# import file with 1 row, 2 columns
+do_test shell5-1.4.5 {
+  set in [open shell5.csv w]
+  puts $in "1|2"
+  close $in
+  set res [catchcmd "test.db" {DELETE FROM t1;
+.import shell5.csv t1
+SELECT COUNT(*) FROM t1;}]
+} {0 1}
+
+# import file with 2 rows, 2 columns
+# note we end up with 3 rows because of the 1 row 
+# imported above.
+do_test shell5-1.4.6 {
+  set in [open shell5.csv w]
+  puts $in "2|3"
+  puts $in "3|4"
+  close $in
+  set res [catchcmd ":memory:" {ATTACH 'test.db' AS test;
+.import -schema test shell5.csv t1
+SELECT COUNT(*) FROM test.t1;}]
+} {0 3}
+
+# import file with 1 row, 2 columns, using a comma
+do_test shell5-1.4.7 {
+  set in [open shell5.csv w]
+  puts $in "4,5"
+  close $in
+  set res [catchcmd ":memory:" {ATTACH 'test.db' AS test;
+.separator ,
+.import --schema test shell5.csv t1
+SELECT COUNT(*) FROM test.t1;}]
+} {0 4}
+
+# import file with 1 row, 2 columns, text data
+do_test shell5-1.4.8.1 {
+  set in [open shell5.csv w]
+  puts $in "5|Now is the time for all good men to come to the aid of their country."
+  close $in
+  set res [catchcmd "test.db" {.import shell5.csv t1
+SELECT COUNT(*) FROM t1;}]
+} {0 5}
+
+do_test shell5-1.4.8.2 {
+  catchcmd "test.db" {SELECT b FROM t1 WHERE a='5';}
+} {0 {Now is the time for all good men to come to the aid of their country.}}
+
+# import file with 1 row, 2 columns, quoted text data
+# note that currently sqlite doesn't support quoted fields, and
+# imports the entire field, quotes and all.
+do_test shell5-1.4.9.1 {
+  set in [open shell5.csv w]
+  puts $in "6|'Now is the time for all good men to come to the aid of their country.'"
+  close $in
+  set res [catchcmd "test.db" {.import shell5.csv t1
+SELECT COUNT(*) FROM t1;}]
+} {0 6}
+
+do_test shell5-1.4.9.2 {
+  catchcmd "test.db" {SELECT b FROM t1 WHERE a='6';}
+} {0 {'Now is the time for all good men to come to the aid of their country.'}}
+
+# import file with 1 row, 2 columns, quoted text data
+do_test shell5-1.4.10.1 {
+  set in [open shell5.csv w]
+  puts $in "7|\"Now is the time for all good men to come to the aid of their country.\""
+  close $in
+  set res [catchcmd "test.db" {.import shell5.csv t1
+SELECT COUNT(*) FROM t1;}]
+} {0 7}
+
+do_test shell5-1.4.10.2 {
+  catchcmd "test.db" {SELECT b FROM t1 WHERE a='7';}
+} {0 {Now is the time for all good men to come to the aid of their country.}}
+
+# import file with 2 rows, 2 columns and an initial BOM
+#
+do_test shell5-1.4.11 {
+  set in [open shell5.csv wb]
+  puts -nonewline $in "\xef\xbb\xbf"
+  puts $in "2|3"
+  puts $in "4|5"
+  close $in
+  set res [catchcmd "test.db" {CREATE TABLE t2(x INT, y INT);
+.import shell5.csv t2
+.mode quote
+.header on
+SELECT * FROM t2;}]
+ string map {\n | \n\r |} $res
+} {0 {'x','y'|2,3|4,5}}
+
+# import file with 2 rows, 2 columns or text with an initial BOM
+#
+do_test shell5-1.4.12 {
+  set in [open shell5.csv wb]
+  puts $in "\xef\xbb\xbf\"two\"|3"
+  puts $in "4|5"
+  close $in
+  set res [catchcmd "test.db" {DELETE FROM t2;
+.import shell5.csv t2
+.mode quote
+.header on
+SELECT * FROM t2;}]
+ string map {\n | \n\r |} $res
+} {0 {'x','y'|'two',3|4,5}}
+
+# check importing very long field
+do_test shell5-1.5.1 {
+  set str [string repeat X 999]
+  set in [open shell5.csv w]
+  puts $in "8|$str"
+  close $in
+  set res [catchcmd "test.db" {.import shell5.csv t1
+SELECT length(b) FROM t1 WHERE a='8';}]
+} {0 999}
+
+# try importing into a table with a large number of columns.
+# This is limited by SQLITE_MAX_VARIABLE_NUMBER, which defaults to 999.
+set cols 999
+do_test shell5-1.6.1 {
+  set data {}
+  for {set i 1} {$i<$cols} {incr i} {
+    append data "c$i|"
+  }
+  append data "c$cols\n";
+  for {set i 1} {$i<$cols} {incr i} {
+    append data "$i|"
+  }
+  append data "$cols"
+  set in [open shell5.csv w]
+  puts $in $data
+  close $in
+  set res [catchcmd "test.db" {DROP TABLE IF EXISTS t2;
+.import shell5.csv t2
+SELECT COUNT(*) FROM t2;}]
+} {0 1}
+
+# try importing a large number of rows
+set rows 9999
+do_test shell5-1.7.1 {
+  set in [open shell5.csv w]
+  puts $in a
+  for {set i 1} {$i<=$rows} {incr i} {
+    puts $in $i
+  }
+  close $in
+  set res [catchcmd "test.db" {.mode csv
+.import shell5.csv t3
+SELECT COUNT(*) FROM t3;}]
+} [list 0 $rows]
+
+# Import from a pipe.  (Unix only, as it requires "awk")
+if {$tcl_platform(platform)=="unix"} {
+  do_test shell5-1.8 {
+    forcedelete test.db
+    catchcmd test.db {.mode csv
+.import "|awk 'END{print \"x,y\";for(i=1;i<=5;i++){print i \",this is \" i}}'" t1
+SELECT * FROM t1;}
+  } {0 {1,"this is 1"
+2,"this is 2"
+3,"this is 3"
+4,"this is 4"
+5,"this is 5"}}
+}
+
+# Import columns containing quoted strings
+do_test shell5-1.9 {
+  set out [open shell5.csv w]
+  fconfigure $out -translation lf
+  puts $out {1,"",11}
+  puts $out {2,"x",22}
+  puts $out {3,"""",33}
+  puts $out {4,"hello",44}
+  puts $out "5,55,\"\"\r"
+  puts $out {6,66,"x"}
+  puts $out {7,77,""""}
+  puts $out {8,88,"hello"}
+  puts $out {"",9,99}
+  puts $out {"x",10,110}
+  puts $out {"""",11,121}
+  puts $out {"hello",12,132}
+  close $out
+  forcedelete test.db
+  catchcmd test.db {.mode csv
+    CREATE TABLE t1(a,b,c);
+.import shell5.csv t1
+  }
+  sqlite3 db test.db
+  db eval {SELECT *, '|' FROM t1 ORDER BY rowid}
+} {1 {} 11 | 2 x 22 | 3 {"} 33 | 4 hello 44 | 5 55 {} | 6 66 x | 7 77 {"} | 8 88 hello | {} 9 99 | x 10 110 | {"} 11 121 | hello 12 132 |}
+db close
+
+# Import columns containing quoted strings
+do_test shell5-1.10 {
+  set out [open shell5.csv w]
+  fconfigure $out -translation lf
+  puts $out {column1,column2,column3,column4}
+  puts $out "field1,field2,\"x3 \"\"\r\ndata\"\" 3\",field4"
+  puts $out "x1,x2,\"x3 \"\"\ndata\"\" 3\",x4"
+  close $out
+  forcedelete test.db
+  catchcmd test.db {.mode csv
+    CREATE TABLE t1(a,b,c,d);
+.import shell5.csv t1
+  }
+  sqlite3 db test.db
+  db eval {SELECT hex(c) FROM t1 ORDER BY rowid}
+} {636F6C756D6E33 783320220D0A64617461222033 783320220A64617461222033}
+
+# Blank last column with \r\n line endings.
+do_test shell5-1.11 {
+  set out [open shell5.csv w]
+  fconfigure $out -translation binary
+  puts $out "column1,column2,column3\r"
+  puts $out "a,b, \r"
+  puts $out "x,y,\r"
+  puts $out "p,q,r\r"
+  close $out
+  catch {db close}
+  forcedelete test.db
+  catchcmd test.db {.mode csv
+.import shell5.csv t1
+  }
+  sqlite3 db test.db
+  db eval {SELECT *, '|' FROM t1}
+} {a b { } | x y {} | p q r |}
+db close
+
+#----------------------------------------------------------------------------
+# 
+reset_db
+sqlite3 db test.db
+do_test shell5-2.1 {
+  set fd [open shell5.csv w]
+  puts $fd ",hello"
+  close $fd
+  catchcmd test.db [string trim {
+.mode csv
+CREATE TABLE t1(a, b);
+.import shell5.csv t1
+  }]
+  db eval { SELECT * FROM t1 }
+} {{} hello}
+
+do_test shell5-2.2 {
+  set fd [open shell5.csv w]
+  puts $fd {"",hello}
+  close $fd
+  catchcmd test.db [string trim {
+.mode csv
+CREATE TABLE t2(a, b);
+.import shell5.csv t2
+  }]
+  db eval { SELECT * FROM t2 }
+} {{} hello}
+
+do_test shell5-2.3 {
+  set fd [open shell5.csv w]
+  puts $fd {"x""y",hello}
+  close $fd
+  catchcmd test.db [string trim {
+.mode csv
+CREATE TABLE t3(a, b);
+.import shell5.csv t3
+  }]
+  db eval { SELECT * FROM t3 }
+} {x\"y hello}
+
+do_test shell5-2.4 {
+  set fd [open shell5.csv w]
+  puts $fd {"xy""",hello}
+  close $fd
+  catchcmd test.db [string trim {
+.mode csv
+CREATE TABLE t4(a, b);
+.import shell5.csv t4
+  }]
+  db eval { SELECT * FROM t4 }
+} {xy\" hello}
+
+do_test shell5-2.5 {
+  set fd [open shell5.csv w]
+  puts $fd {"one","2"}
+  puts $fd {}
+  close $fd
+  catchcmd test.db [string trim {
+.mode csv
+CREATE TABLE t4(a, b);
+.import shell5.csv t4
+  }]
+  db eval { SELECT * FROM t4 }
+} {xy\" hello one 2 {} {}}
+
+#----------------------------------------------------------------------------
+# Tests for the shell "ascii" import/export mode.
+#
+do_test shell5-3.1 {
+  set fd [open shell5.csv w]
+  fconfigure $fd -translation binary
+  puts -nonewline $fd "\"test 1\"\x1F,test 2\r\n\x1E"
+  puts -nonewline $fd "test 3\x1Ftest 4\n"
+  close $fd
+  catchcmd test.db {
+.mode ascii
+CREATE TABLE t5(a, b);
+.import shell5.csv t5
+  }
+  db eval { SELECT * FROM t5 }
+} "\{\"test 1\"} \{,test 2\r\n\} \{test 3\} \{test 4\n\}"
+
+do_test shell5-3.2 {
+  set x [catchcmd test.db {
+.mode ascii
+SELECT * FROM t5;
+  }]
+  # Handle platform end-of-line differences
+  regsub -all {[\n\r]?\n} $x <EOL> x
+  set x
+} "0 \{\"test 1\"\x1F,test 2<EOL>\x1Etest 3\x1Ftest 4<EOL>\x1E\}"
+
+do_test shell5-4.1 {
+  forcedelete shell5.csv
+  set fd [open shell5.csv w]
+  puts $fd "1,2,3"
+  puts $fd "4,5"
+  puts $fd "6,7,8"
+  close $fd
+  catchcmd test.db [string trim {
+.mode csv
+CREATE TABLE t6(a, b, c);
+.import shell5.csv t6
+  }]
+  db eval { SELECT * FROM t6 ORDER BY a }
+} {1 2 3 4 5 {} 6 7 8}
+
+do_test shell5-4.2 {
+  forcedelete shell5.csv
+  set fd [open shell5.csv w]
+  puts $fd "1,2,3"
+  puts $fd "4,5"
+  puts $fd "6,7,8,9"
+  close $fd
+  catchcmd test.db [string trim {
+.mode csv
+CREATE TABLE t7(a, b, c);
+.import shell5.csv t7
+  }]
+  db eval { SELECT * FROM t7 ORDER BY a }
+} {1 2 3 4 5 {} 6 7 8}
+
+do_test shell5-4.3 {
+  forcedelete shell5.csv
+  set fd [open shell5.csv w]
+  puts $fd ",,"
+  puts $fd "1,2,3"
+  close $fd
+  catchcmd test.db [string trim {
+.mode csv
+CREATE TABLE t8(a, b, c);
+.import -skip 1 shell5.csv t8
+.nullvalue #
+  }]
+  db eval { SELECT * FROM t8 }
+} {1 2 3}
+
+do_test shell5-4.4 {
+  forcedelete shell5.csv
+  set fd [open shell5.csv w]
+  puts $fd "1,2,3"
+  close $fd
+  catchcmd test.db [string trim {
+.mode csv
+CREATE TEMP TABLE t8(a, b, c);
+.import shell5.csv t8
+.nullvalue #
+SELECT * FROM temp.t8
+  }]
+} {0 1,2,3}
+
+#----------------------------------------------------------------------------
+# Tests for the shell automatic column rename.
+#
+db close
+
+# Import columns containing duplicates
+do_test shell5-5.1 {
+  set out [open shell5.csv w]
+  fconfigure $out -translation lf
+  puts $out {"","x","x","y","z","z_0","z_5","z"}
+  puts $out {0,"x2","x3","y4","z5","z6","z7","z8"}
+  close $out
+  forcedelete test.db
+  catchcmd test.db {.import -csv shell5.csv t1
+.mode line
+SELECT * FROM t1;}
+} {1 {    ? = 0
+ x_02 = x2
+ x_03 = x3
+    y = y4
+ z_05 = z5
+  z_0 = z6
+  z_5 = z7
+ z_08 = z8
+Columns renamed during .import shell5.csv due to duplicates:
+"x" to "x_02",
+"x" to "x_03",
+"z" to "z_05",
+"z" to "z_08"}}
+
+do_test shell5-5.1 {
+  set out [open shell5.csv w]
+  fconfigure $out -translation lf
+  puts $out {"COW","cow","CoW","cOw"}
+  puts $out {"uuu","lll","ulu","lul"}
+  close $out
+  forcedelete test.db
+  catchcmd test.db {.import -csv shell5.csv t1
+.mode line
+SELECT * FROM t1;}
+} {1 {COW_1 = uuu
+cow_2 = lll
+CoW_3 = ulu
+cOw_4 = lul
+Columns renamed during .import shell5.csv due to duplicates:
+"COW" to "COW_1",
+"cow" to "cow_2",
+"CoW" to "CoW_3",
+"cOw" to "cOw_4"}}
+
+#----------------------------------------------------------------------------
+# Tests for preserving utf-8 that is not also ASCII.
+#
+
+do_test shell5-6.1 {
+  set out [open shell5.csv w]
+  fconfigure $out -translation lf
+  puts $out {あい,うえお}
+  puts $out {1,2}
+  close $out
+  forcedelete test.db
+  catchcmd test.db {.import -csv shell5.csv t1
+.mode line
+SELECT * FROM t1;}
+} {0 {   あい = 1
+うえお = 2}}
+
+do_test shell5-6.2 {
+  set out [open shell5.csv w]
+  fconfigure $out -translation lf
+  puts $out {1,2}
+  puts $out {あい,うえお}
+  close $out
+  forcedelete test.db
+  catchcmd test.db {.import -csv shell5.csv t1
+.mode line
+SELECT * FROM t1;}
+} {0 {    1 = あい
+    2 = うえお}}
+
+# 2024-03-11 https://sqlite.org/forum/forumpost/ca014d7358
+# Import into a table that contains computed columns.
+#
+do_test shell5-7.1 {
+  set out [open shell5.csv w]
+  fconfigure $out -translation lf
+  puts $out {aaa|bbb}
+  close $out
+  forcedelete test.db
+  catchcmd :memory: {CREATE TABLE t1(a TEXT, b TEXT, c AS (a||b));
+.import shell5.csv t1
+SELECT * FROM t1;}
+} {0 aaa|bbb|aaabbb}
+
+#-------------------------------------------------------------------------
+
+do_test shell5-8.1 {
+
+  set out [open shell5.csv w]
+  fconfigure $out -translation lf
+  puts $out x
+  close $out
+
+  catchcmd :memory: {.import --csv shell5.csv '""""""""""""""""""""""""""""""""""""""""""""""'}
+} {0 {}}
+
+finish_test
diff --git a/test/shell6.test b/test/shell6.test
new file mode 100644
index 0000000000000000000000000000000000000000..4841d6c01ad04ac524584ea21957a7bc66995c05
--- /dev/null
+++ b/test/shell6.test
@@ -0,0 +1,130 @@
+# 2016 December 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# TESTRUNNER: shell
+#
+# Test the shell tool ".lint fkey-indexes" command.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable !vtab {finish_test; return}
+set testprefix shell6
+set CLI [test_find_cli]
+db close
+forcedelete test.db test.db-journal test.db-wal
+
+foreach {tn schema output} {
+  1 {
+    CREATE TABLE p1(a PRIMARY KEY, b);
+    CREATE TABLE c1(x, y REFERENCES p1);
+  } {
+    CREATE INDEX 'c1_y' ON 'c1'('y'); --> p1(a)
+  }
+
+  2 {
+    CREATE TABLE p1(a PRIMARY KEY, b);
+    CREATE TABLE c2(x REFERENCES p1, y REFERENCES p1);
+  } {
+    CREATE INDEX 'c2_y' ON 'c2'('y'); --> p1(a)
+    CREATE INDEX 'c2_x' ON 'c2'('x'); --> p1(a)
+  }
+
+  3 {
+    CREATE TABLE 'p 1'(a, b, c, PRIMARY KEY(c, b));
+    CREATE TABLE 'c 1'(x, y, z, FOREIGN KEY (z, y) REFERENCES 'p 1');
+  } {
+    CREATE INDEX 'c 1_z_y' ON 'c 1'('z', 'y'); --> p 1(c,b)
+  }
+
+  4 {
+    CREATE TABLE p1(a, 'b b b' PRIMARY KEY);
+    CREATE TABLE c1('x y z' REFERENCES p1);
+    CREATE INDEX i1 ON c1('x y z') WHERE "x y z" IS NOT NULL;
+  } {
+  }
+
+  5 {
+    CREATE TABLE p1(a, 'b b b' PRIMARY KEY);
+    CREATE TABLE c1('x y z' REFERENCES p1);
+    CREATE INDEX i1 ON c1('x y z') WHERE "x y z" IS NOT 12;
+  } {
+    CREATE INDEX 'c1_x y z' ON 'c1'('x y z'); --> p1(b b b)
+  }
+
+  6 {
+    CREATE TABLE x1(a, b, c, UNIQUE(a, b));
+    CREATE TABLE y1(a, b, c, FOREIGN KEY(b, a) REFERENCES x1(a, b));
+    CREATE INDEX y1i ON y1(a, c, b);
+  } {
+    CREATE INDEX 'y1_b_a' ON 'y1'('b', 'a'); --> x1(a,b)
+  }
+
+  6 {
+    CREATE TABLE x1(a COLLATE nocase, b, UNIQUE(a));
+    CREATE TABLE y1(a COLLATE rtrim REFERENCES x1(a));
+  } {
+    CREATE INDEX 'y1_a' ON 'y1'('a' COLLATE nocase); --> x1(a)
+  }
+
+  7 {
+    CREATE TABLE x1(a PRIMARY KEY COLLATE nocase, b);
+    CREATE TABLE y1(a REFERENCES x1);
+  } {
+    CREATE INDEX 'y1_a' ON 'y1'('a' COLLATE nocase); --> x1(a)
+  }
+
+  8 {
+    CREATE TABLE x1(a, b COLLATE nocase, c COLLATE rtrim, PRIMARY KEY(c, b, a));
+    CREATE TABLE y1(d, e, f, FOREIGN KEY(d, e, f) REFERENCES x1);
+  } {
+    CREATE INDEX 'y1_d_e_f' ON 'y1'('d' COLLATE rtrim, 'e' COLLATE nocase, 'f'); --> x1(c,b,a)
+  }
+
+  9 {
+    CREATE TABLE p1(a, b UNIQUE);
+    CREATE TABLE c1(x INTEGER PRIMARY KEY REFERENCES p1(b));
+  } {
+  }
+
+  10 {
+    CREATE TABLE parent (id INTEGER PRIMARY KEY); 
+    CREATE TABLE child2 (id INT PRIMARY KEY, parentID INT REFERENCES parent) 
+      WITHOUT ROWID;
+  } {
+    CREATE INDEX 'child2_parentID' ON 'child2'('parentID'); --> parent(id)
+  }
+
+} {
+  forcedelete test.db
+  sqlite3 db test.db
+  execsql $schema
+
+  set expected ""
+  foreach line [split $output "\n"] {
+    set line [string trim $line]
+    if {$line!=""} {
+      append expected "$line\n"
+    }
+  }
+
+  do_test 1.$tn.1 {
+    set RES [catchcmd test.db [list .lint fkey-indexes]]
+  } [list 0 [string trim $expected]]
+
+  do_test 1.$tn.2 {
+    execsql [lindex $RES 1]
+    catchcmd test.db [list .lint fkey-indexes]
+  } {0 {}}
+
+  db close
+}
+
+finish_test
diff --git a/test/shell7.test b/test/shell7.test
new file mode 100644
index 0000000000000000000000000000000000000000..460789e544eb5911269744e73d9b8d6dc89a87e5
--- /dev/null
+++ b/test/shell7.test
@@ -0,0 +1,52 @@
+# 2016 December 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# TESTRUNNER: shell
+#
+# Test the readfile() function built into the shell tool. Specifically,
+# that it does not truncate the blob read at the first embedded 0x00
+# byte.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix shell7
+set CLI [test_find_cli]
+
+
+do_execsql_test 1.0 { 
+  CREATE TABLE f1(tn INTEGER PRIMARY KEY, x BLOB); 
+  CREATE TABLE f2(tn INTEGER PRIMARY KEY, x BLOB); 
+
+  INSERT INTO f1 VALUES(1, X'01020304');
+  INSERT INTO f1 VALUES(2, X'01000304');
+  INSERT INTO f1 VALUES(3, randomblob(200));
+}
+
+foreach {tn l x} [db eval { SELECT tn, length(x) AS l, x FROM f1 }] {
+  forcedelete shell7_test.bin
+  set fd [open shell7_test.bin w]
+  fconfigure $fd -translation binary
+  puts -nonewline $fd $x
+  close $fd
+
+  do_test 1.$tn.1 { file size shell7_test.bin } $l
+  do_test 1.$tn.2 { 
+    catchcmd test.db "INSERT INTO f2 VALUES($tn, readfile('shell7_test.bin'));"
+  } {0 {}}
+
+  do_execsql_test 1.$tn.3 { 
+    SELECT (SELECT x FROM f1 WHERE tn=1)==(SELECT x FROM f2 WHERE tn=1)
+  } {1}
+}
+
+
+
+finish_test
diff --git a/test/shell8.test b/test/shell8.test
new file mode 100644
index 0000000000000000000000000000000000000000..ca37598e93c1be303e769a37c5edece4ff713710
--- /dev/null
+++ b/test/shell8.test
@@ -0,0 +1,222 @@
+# 2017 December 9
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# TESTRUNNER: shell
+#
+# Test the shell tool ".ar" command.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix shell8
+
+ifcapable !vtab {
+  finish_test; return
+}
+set CLI [test_cli_invocation]
+
+# Check to make sure the shell has been compiled with ".archive" support.
+#
+if {[string match {*unknown command*} [catchcmd :memory: .archive]]} {
+  finish_test; return
+}
+
+proc populate_dir {dirname spec} {
+  # First delete the current tree, if one exists.
+  file delete -force $dirname
+  
+  # Recreate the root of the new tree.
+  file mkdir $dirname
+
+  # Add each file to the new tree.
+  foreach {f d} $spec {
+    set path [file join $dirname $f]
+    file mkdir [file dirname $path]
+    set fd [open $path w]
+    puts -nonewline $fd $d
+    close $fd
+  }
+}
+
+proc dir_content {dirname} {
+  lsort [glob -nocomplain $dirname/*]
+}
+
+proc dir_to_list {dirname {n -1}} {
+  if {$n<0} {set n [llength [file split $dirname]]}
+
+  set res [list]
+  foreach f [glob -nocomplain $dirname/*] {
+    set mtime [file mtime $f]
+    if {$::tcl_platform(platform)!="windows"} {
+      set perm [file attributes $f -perm]
+    } else {
+      set perm 0
+    }
+    set relpath [file join {*}[lrange [file split $f] $n end]]
+    lappend res 
+    if {[file isdirectory $f]} {
+      lappend res [list $relpath / $mtime $perm]
+      lappend res {*}[dir_to_list $f]
+    } else {
+      set fd [open $f]
+      set data [read $fd]
+      close $fd
+      lappend res [list $relpath $data $mtime $perm]
+    }
+  }
+  lsort $res
+}
+
+proc dir_compare {d1 d2} {
+  set l1 [dir_to_list $d1]
+  set l2 [dir_to_list $d1]
+  string compare $l1 $l2
+}
+
+foreach {tn tcl} {
+  1 {
+    set c1 ".ar c ar1"
+    set x1 ".ar x"
+
+    set c2 ".ar cC ar1 ."
+    set x2 ".ar Cx ar3"
+
+    set c3 ".ar cCf ar1 test_xyz.db ."
+    set x3 ".ar Cfx ar3 test_xyz.db"
+  }
+
+  2 {
+    set c1 ".ar -c ar1"
+    set x1 ".ar -x"
+
+    set c2 ".ar -cC ar1 ."
+    set x2 ".ar -xC ar3"
+
+    set c3 ".ar -cCar1 -ftest_xyz.db ."
+    set x3 ".ar -x -C ar3 -f test_xyz.db"
+  }
+
+  3 {
+    set c1 ".ar --create ar1"
+    set x1 ".ar --extract"
+
+    set c2 ".ar --directory ar1 --create ."
+    set x2 ".ar --extract --dir ar3"
+
+    set c3 ".ar --creat --dir ar1 --file test_xyz.db ."
+    set x3 ".ar --e  --dir ar3 --f test_xyz.db"
+  }
+
+  4 {
+    set c1 ".ar --cr ar1"
+    set x1 ".ar --e"
+
+    set c2 ".ar -C ar1 -c ."
+    set x2 ".ar -x -C ar3"
+
+    set c3 ".ar -c --directory ar1 --file test_xyz.db ."
+    set x3 ".ar -x --directory ar3 --file test_xyz.db"
+  }
+} {
+  eval $tcl
+
+  # Populate directory "ar1" with some files.
+  #
+  populate_dir ar1 {
+    file1 "abcd" 
+    file2 "efgh"
+    dir1/file3 "ijkl"
+  }
+  set expected [dir_to_list ar1]
+
+  do_test 1.$tn.1 {
+    catchcmd test_ar.db $c1
+    file delete -force ar1
+    catchcmd test_ar.db $x1
+    dir_to_list ar1
+  } $expected
+
+  do_test 1.$tn.2 {
+    file delete -force ar3
+    catchcmd test_ar.db $c2
+    catchcmd test_ar.db $x2
+    dir_to_list ar3
+  } $expected
+
+  do_test 1.$tn.3 {
+    file delete -force ar3
+    file delete -force test_xyz.db
+    catchcmd ":memory:" $c3
+    catchcmd ":memory:" $x3
+    dir_to_list ar3
+  } $expected
+
+  # This is a repeat of test 1.$tn.1, except that there is a 2 second 
+  # pause between creating the archive and extracting its contents.
+  # This is to test that timestamps are set correctly.
+  #
+  # Because it is slow, only do this for $tn==1.
+  if {$tn==1} {
+    do_test 1.$tn.4 {
+      catchcmd test_ar.db $c1
+      file delete -force ar1
+      after 2000
+      catchcmd test_ar.db $x1
+      dir_to_list ar1
+    } $expected
+  }
+}
+
+do_test 2.1.1 {
+  populate_dir ar2 {
+    file1 "abcd" 
+    file2 "efgh"
+    junk1 "j1"
+    junk2 "j2"
+    dir1/file3 "ijkl"
+  }
+  populate_dir ar4 {
+    file2 "efgh"
+  }
+  catchcmd shell8.db {.ar -c}
+  catchcmd shell8.db {.ar -C ar2 -i .}
+  catchcmd shell8.db {.ar -r ./file2 ./dir1}
+  catchcmd shell8.db {.ar -g -r ./ju*2}
+  catchcmd shell8.db {.ar -C ar4 -x .}
+  regsub -all {ar4} [dir_content ar4] ar2
+} {ar2/file1 ar2/file2 ar2/junk1}
+
+# Test symbolic links.
+#
+if {$tcl_platform(platform)=="unix"} {
+  populate_dir ar2 {
+    file1 "1234" 
+    file2 "3456"
+  }
+  file link ar2/link1 file1
+
+  forcedelete shell8.db
+  forcedelete link1
+
+  do_test 3.1 {
+    catchcmd shell8.db {.ar -C ar2 -c file2 link1 }
+  } {0 {}}
+
+  do_test 3.2 {
+    catchcmd shell8.db {.ar -x} 
+  } {0 {}}
+
+  do_test 3.3 {
+    catchcmd shell8.db {.ar -x} 
+  } {0 {}}
+}
+
+finish_test
diff --git a/test/shell9.test b/test/shell9.test
new file mode 100644
index 0000000000000000000000000000000000000000..869cb075da1593d3b0708c4f9bd5fe09e0ae8489
--- /dev/null
+++ b/test/shell9.test
@@ -0,0 +1,149 @@
+# 2024 Jan 8
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# TESTRUNNER: shell
+#
+# The focus of this file is testing the CLI shell tool. Specifically, 
+# testing that it is possible to run a ".dump" script that creates
+# virtual tables without explicitly disabling defensive mode.
+#
+# And, that it can process a ".dump" script that contains strings
+# delimited using double-quotes in the schema (DQS_DDL setting).
+#
+
+# Test plan:
+#
+#   shell1-1.*: Basic command line option handling.
+#   shell1-2.*: Basic "dot" command token parsing.
+#   shell1-3.*: Basic test that "dot" command can be called.
+#   shell1-{4-8}.*: Test various "dot" commands's functionality.
+#   shell1-9.*: Basic test that "dot" commands and SQL intermix ok.
+#
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set CLI [test_cli_invocation]
+
+set ::testprefix shell9
+
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+#----------------------------------------------------------------------------
+# Test cases shell9-1.* verify that scripts output by .dump may be parsed
+# by the shell tool without explicitly disabling DEFENSIVE mode, unless
+# the shell is in safe mode.
+#
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE t1 USING fts5(a, b, c);
+  INSERT INTO t1 VALUES('one', 'two', 'three');
+}
+db close
+
+# Create .dump file in "testdump.txt".
+#
+set out [open testdump.txt w]
+puts $out [lindex [catchcmd test.db .dump] 1]
+close $out
+
+# Check testdump.txt can be processed if the initial db is empty.
+#
+do_test 1.1.1 {
+  forcedelete test.db
+  catchcmd test.db ".read testdump.txt"
+} {0 {}}
+sqlite3 db test.db
+do_execsql_test 1.1.2 {
+  SELECT * FROM t1;
+} {one two three}
+
+# Check testdump.txt cannot be processed if the initial db is not empty.
+#
+reset_db
+do_execsql_test 1.2.1 {
+  CREATE TABLE t4(hello);
+}
+db close
+do_test 1.2.2 {
+  catchcmd test.db ".read testdump.txt"
+} {1 {Parse error near line 5: table sqlite_master may not be modified}}
+
+# Check testdump.txt cannot be processed if the db is in safe mode
+#
+do_test 1.3.1 {
+  forcedelete test.db
+  catchsafecmd test.db ".read testdump.txt"
+} {1 {line 1: cannot run .read in safe mode}}
+do_test 1.3.2 {
+  set fd [open testdump.txt]
+  set script [read $fd]
+  close $fd
+  forcedelete test.db
+  catchsafecmd test.db $script
+} {1 {Parse error near line 5: table sqlite_master may not be modified}}
+do_test 1.3.3 {
+  # Quick check that the above would have worked but for safe mode.
+  forcedelete test.db
+  catchcmd test.db $script
+} {0 {}}
+
+#----------------------------------------------------------------------------
+# Test cases shell9-2.* verify that a warning is printed at the top of
+# .dump scripts that contain virtual tables.
+#
+proc contains_warning {text} {
+  return [string match "*WARNING: Script requires that*" $text]
+}
+
+reset_db
+do_execsql_test 2.0.1 {
+  CREATE TABLE t1(x);
+  CREATE TABLE t2(y);
+  INSERT INTO t1 VALUES('one');
+  INSERT INTO t2 VALUES('two');
+}
+do_test 2.0.2 {
+  contains_warning [catchcmd test.db .dump]
+} 0
+
+do_execsql_test 2.1.1 {
+  CREATE virtual TABLE r1 USING fts5(x);
+}
+do_test 2.1.2 {
+  contains_warning [catchcmd test.db .dump]
+} 1
+
+do_test 2.2.1 {
+  contains_warning [catchcmd test.db ".dump t1"]
+} 0
+do_test 2.2.2 {
+  contains_warning [catchcmd test.db ".dump r1"]
+} 1
+
+#-------------------------------------------------------------------------
+reset_db
+sqlite3_db_config db DQS_DDL 1
+do_execsql_test 3.1.0 {
+  CREATE TABLE t4(hello, check( hello IS NOT "xyz") );
+}
+db close
+
+# Create .dump file in "testdump.txt".
+#
+set out [open testdump.txt w]
+puts $out [lindex [catchcmd test.db .dump] 1]
+close $out
+do_test 3.1.1 {
+  forcedelete test.db
+  catchcmd test.db ".read testdump.txt"
+} {0 {}}
+
+finish_test
diff --git a/test/shmlock.test b/test/shmlock.test
new file mode 100644
index 0000000000000000000000000000000000000000..89b29fd7ac9e3b0bc7df87089f3b6fbd73d82db4
--- /dev/null
+++ b/test/shmlock.test
@@ -0,0 +1,180 @@
+# 2018 December 6
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+set testprefix shmlock
+
+ifcapable !wal {finish_test ; return }
+
+sqlite3 db2 test.db
+sqlite3 db3 test.db
+
+do_execsql_test 1.0 {
+  PRAGMA journal_mode = wal;
+  CREATE TABLE t1(a, b);
+  INSERT INTO t1 VALUES(1, 2);
+} {wal}
+do_test 1.1 { execsql { SELECT * FROM t1 } db2 } {1 2}
+do_test 1.2 { execsql { SELECT * FROM t1 } db3 } {1 2}
+
+foreach {tn dbhandle cmd res} {
+  1    db  {shared    lock   7 1}    OK
+  2    db2 {exclusive lock   7 1}    BUSY
+  3    db  {shared    unlock 7 1}    OK
+  4    db2 {exclusive lock   7 1}    OK
+  5    db  {shared    lock   7 1}    BUSY
+  6    db  {exclusive lock   7 1}    BUSY
+  7    db2 {exclusive unlock 7 1}    OK
+
+  8    db  {exclusive lock   0 8}    OK
+  9    db  {exclusive unlock 0 8}    OK
+  10   db2 {exclusive lock   0 8}    OK
+  11   db2 {exclusive unlock 0 8}    OK
+
+  12   db  {shared    lock   0 1}    OK
+  13   db2 {shared    lock   0 1}    OK
+  14   db3 {shared    lock   0 1}    OK
+  15   db3 {shared    unlock 0 1}    OK
+  16   db3 {exclusive lock   0 1}    BUSY
+  17   db2 {shared    unlock 0 1}    OK
+  18   db3 {exclusive lock   0 1}    BUSY
+  19   db  {shared    unlock 0 1}    OK
+  20   db3 {exclusive lock   0 1}    OK
+  21   db3 {exclusive unlock 0 1}    OK
+
+  22   db  {shared    lock   3 1}    OK
+  23   db2 {exclusive lock   2 2}    BUSY
+  24   db  {shared    lock   2 1}    OK
+  25   db2 {exclusive lock   0 5}    BUSY
+  26   db2 {exclusive lock   0 4}    BUSY
+  27   db2 {exclusive lock   0 3}    BUSY
+  28   db  {shared    unlock 3 1}    OK
+  29   db2 {exclusive lock   2 2}    BUSY
+  28   db  {shared    unlock 2 1}    OK
+  29   db2 {exclusive lock   2 2}    OK
+  29   db2 {exclusive unlock 2 2}    OK
+} {
+  do_test 1.3.$tn [list vfs_shmlock $dbhandle main {*}$cmd] "SQLITE_$res"
+}
+
+db  close
+db2 close
+db3 close
+
+if {[permutation]=="unix-excl"} {
+  do_test 2.0 {
+    for {set i 0} {$i < 256} {incr i} { 
+      sqlite3 db$i test.db 
+      execsql { SELECT * FROM t1 } db$i
+    }
+    for {set i 0} {$i < 255} {incr i} { 
+      set rc [vfs_shmlock db$i main shared lock 4 1]
+      if {$rc != "SQLITE_OK"} { error $rc }
+    }
+
+    vfs_shmlock db255 main shared lock 4 1
+  } {SQLITE_BUSY}
+
+  do_test 2.1 { vfs_shmlock db255 main exclusive lock   4 1 } SQLITE_BUSY
+  do_test 2.2 { vfs_shmlock db0   main shared    unlock 4 1 } SQLITE_OK
+  do_test 2.3 { vfs_shmlock db255 main shared    lock   4 1 } SQLITE_OK
+  do_test 2.4 { vfs_shmlock db255 main shared    unlock 4 1 } SQLITE_OK
+  do_test 2.5 { vfs_shmlock db255 main exclusive lock   4 1 } SQLITE_BUSY
+
+  do_test 2.6 {
+    for {set i 1} {$i < 255} {incr i} { 
+      set rc [vfs_shmlock db255 main exclusive lock 4 1]
+      if {$rc != "SQLITE_BUSY"} { error $rc }
+      set rc [vfs_shmlock db$i main shared unlock 4 1]
+      if {$rc != "SQLITE_OK"} { error $rc }
+    }
+
+    vfs_shmlock db255 main exclusive lock 4 1
+  } {SQLITE_OK}
+
+  vfs_shmlock db255 main exclusive unlock 4 1
+
+  for {set i 0} {$i < 256} {incr i} {
+    db$i close
+  }
+}
+
+sqlite3 db0 test.db
+sqlite3 db1 test.db
+do_test 3.1 { execsql { SELECT * FROM t1 } db0 } {1 2}
+do_test 3.2 { execsql { SELECT * FROM t1 } db1 } {1 2}
+if {$tcl_platform(platform)=="windows"} {
+  set isWindows 1
+} else {
+  set isWindows 0
+}
+
+set L(0) {n n n n n n n n}
+set L(1) {n n n n n n n n}
+proc random_lock_test {idx} {
+  global L
+  set iSlot [expr int(rand()*8)]
+  if {[expr int(rand()*2)]} {
+    # Unlock operation
+    if {[lindex $L($idx) $iSlot]!="n"} {
+      vfs_shmlock db$idx main [lindex $L($idx) $iSlot] unlock $iSlot 1
+      lset L($idx) $iSlot n
+    }
+  } else {
+    # Lock operation
+    if {[lindex $L($idx) $iSlot]=="n"} {
+      set locktype [lindex {e s} [expr int(rand()*2)]]
+      set n 1
+      if {$locktype=="e"} {
+        for {set l $iSlot} {$l<8 && [lindex $L($idx) $l]=="n"} {incr l} {}
+        set n [expr int(rand()*($l-$iSlot))+1]
+        # The LockFile() and UnlockFile() apis on windows require that
+        # every unlock correspond exactly to a prior lock.  Hence, we cannot
+        # lock arbitrary ranges in this test on windows.
+        if {$::isWindows} {set n 1}
+        # puts "iSlot=$iSlot l=$l L=$L($idx)"
+        # puts "$iSlot $n"
+      }
+      set res [vfs_shmlock db$idx main $locktype lock $iSlot $n]
+
+      set bBusy 0
+      for {set i $iSlot} {$i<($iSlot+$n)} {incr i} {
+        set other [lindex $L([expr ($idx+1)%2]) $i]
+        if {($other!="n" && $locktype=="e")||($other=="e" && $locktype=="s")} {
+          if {$res != "SQLITE_BUSY"} { error "BUSY not detected" }
+          set bBusy 1
+          break
+        } 
+      }
+
+      if {$bBusy==0} {
+        if {$res != "SQLITE_OK"} { error "BUSY false-positive" }
+        for {set i $iSlot} {$i<($iSlot+$n)} {incr i} {
+          lset L($idx) $i $locktype
+        }
+      }
+    }
+  }
+}
+
+set nStep 100000
+for {set i 0} {$i < $nStep} {incr i} {
+  random_lock_test 0
+  random_lock_test 1
+}
+
+db0 close
+db1 close
+
+finish_test
diff --git a/test/shortread1.test b/test/shortread1.test
new file mode 100644
index 0000000000000000000000000000000000000000..647f2ff674fedf4e184a551462337e5caa6dc8f6
--- /dev/null
+++ b/test/shortread1.test
@@ -0,0 +1,52 @@
+# 2007 Sep 13
+#
+# The author disclaims copyright to this source code. In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file attempts to duplicate an error scenario seen on a
+# customer system using version 3.2.2.  The problem appears to
+# have been fixed (perhaps by accident) with check-in [3503].
+# These tests will prevent an accidental recurrance.
+#
+# $Id: shortread1.test,v 1.1 2007/09/14 01:48:12 drh Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test shortread1-1.1 {
+  execsql {
+    CREATE TABLE t1(a TEXT);
+    BEGIN;
+    INSERT INTO t1 VALUES(hex(randomblob(5000)));
+    INSERT INTO t1 VALUES(hex(randomblob(100)));
+    PRAGMA freelist_count;
+  }
+} {0}
+do_test shortread1-1.2 {
+  execsql {
+    DELETE FROM t1 WHERE rowid=1;
+    PRAGMA freelist_count;
+  }
+} {11}
+do_test shortread1-1.3 {
+  sqlite3_release_memory [expr {1024*9}]
+  execsql {
+    INSERT INTO t1 VALUES(hex(randomblob(5000)));
+    PRAGMA freelist_count;
+  }
+} {0}
+do_test shortread1-1.4 {
+  execsql {
+    COMMIT;
+    SELECT count(*) FROM t1;
+  }
+} {2}
+
+finish_test
diff --git a/test/show_speedtest1_rtree.tcl b/test/show_speedtest1_rtree.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..3faa16814696b38670c84ac7cd41e5b996c202f5
--- /dev/null
+++ b/test/show_speedtest1_rtree.tcl
@@ -0,0 +1,57 @@
+#!/usr/bin/tclsh
+#
+# This script displays the field of rectangles used by --testset rtree
+# of speedtest1.  Run this script as follows:
+#
+#      rm test.db
+#      ./speedtest1 --testset rtree --size 25 test.db
+#      sqlite3 --separator ' ' test.db 'SELECT * FROM rt1' >data.txt
+#      wish show_speedtest1_rtree.tcl
+#
+# The filename "data.txt" is hard coded into this script and so that name
+# must be used on lines 3 and 4 above.  Elsewhere, different filenames can
+# be used.  The --size N parameter can be adjusted as desired.
+#
+package require Tk
+set f [open data.txt rb]
+set data [read $f]
+close $f
+canvas .c
+frame .b
+button .b.b1 -text X-Y -command refill-xy
+button .b.b2 -text X-Z -command refill-xz
+button .b.b3 -text Y-Z -command refill-yz
+pack .b.b1 .b.b2 .b.b3 -side left
+pack .c -side top -fill both -expand 1
+pack .b -side top
+proc resize_canvas_to_fit {} {
+  foreach {x0 y0 x1 y1} [.c bbox all] break
+  set w [expr {$x1-$x0}]
+  set h [expr {$y1-$y0}]
+  .c config -width $w -height $h
+}
+proc refill-xy {} {
+  .c delete all
+  foreach {id x0 x1 y0 y1 z0 z1} $::data {
+    .c create rectangle $x0 $y0 $x1 $y1
+  }
+  .c scale all 0 0 0.05 0.05
+  resize_canvas_to_fit
+}
+proc refill-xz {} {
+  .c delete all
+  foreach {id x0 x1 y0 y1 z0 z1} $::data {
+    .c create rectangle $x0 $z0 $x1 $z1
+  }
+  .c scale all 0 0 0.05 0.05
+  resize_canvas_to_fit
+}
+proc refill-yz {} {
+  .c delete all
+  foreach {id x0 x1 y0 y1 z0 z1} $::data {
+    .c create rectangle $y0 $z0 $y1 $z1
+  }
+  .c scale all 0 0 0.05 0.05
+  resize_canvas_to_fit
+}
+refill-xy
diff --git a/test/shrink.test b/test/shrink.test
new file mode 100644
index 0000000000000000000000000000000000000000..cee6919e8cfdba5254cba5d969f281cda5d8b032
--- /dev/null
+++ b/test/shrink.test
@@ -0,0 +1,55 @@
+# 2011 November 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains test cases for sqlite3_db_release_memory and
+# the PRAGMA shrink_memory statement.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+test_set_config_pagecache 0 0
+
+if {[sqlite3_memory_used]==0} {
+  # SQLITE_DEFAULT_MEMSTATUS=0 build.
+  finish_test
+  return
+}
+
+
+unset -nocomplain baseline
+do_test shrink-1.1 {
+  db eval {
+    PRAGMA cache_size = 2000;
+    CREATE TABLE t1(x,y);
+    INSERT INTO t1 VALUES(randomblob(1000000),1);
+  }
+  set ::baseline [sqlite3_memory_used]
+  # EVIDENCE-OF: R-58814-63508 The sqlite3_db_release_memory(D) interface
+  # attempts to free as much heap memory as possible from database
+  # connection D.
+  sqlite3_db_release_memory db
+  expr {$::baseline > [sqlite3_memory_used]+500000}
+} {1}
+do_test shrink-1.2 {
+  set baseline [sqlite3_memory_used]
+  db eval {
+    UPDATE t1 SET y=y+1;
+  }
+  expr {$::baseline+500000 < [sqlite3_memory_used]}
+} {1}
+do_test shrink-1.3 {
+  set baseline [sqlite3_memory_used]
+  db eval {PRAGMA shrink_memory}
+  expr {$::baseline > [sqlite3_memory_used]+500000}
+} {1}
+
+test_restore_config_pagecache
+finish_test
diff --git a/test/sidedelete.test b/test/sidedelete.test
new file mode 100644
index 0000000000000000000000000000000000000000..04e457d8504c429b3188d32b3cb59dcc3445195d
--- /dev/null
+++ b/test/sidedelete.test
@@ -0,0 +1,92 @@
+# 2007 Dec 12
+#
+# The author disclaims copyright to this source code. In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains test cases for stressing database
+# changes that involve side effects that delete rows from
+# the table being changed.  Ticket #2832 shows that in
+# older versions of SQLite that behavior was implemented
+# incorrectly and resulted in corrupt database files.
+#
+# $Id: sidedelete.test,v 1.2 2008/08/04 03:51:24 danielk1977 Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# The sequence table is created to store a sequence of integers
+# starting with 1.  This is used to reinitialize other tables
+# as part of other tests.
+#
+do_test sidedelete-1.1 {
+  execsql {
+    CREATE TABLE sequence(a INTEGER PRIMARY KEY);
+    INSERT INTO sequence VALUES(1);
+    INSERT INTO sequence VALUES(2);
+  }
+  for {set i 0} {$i<8} {incr i} {
+    execsql {
+      INSERT INTO sequence SELECT a+(SELECT max(a) FROM sequence) FROM sequence;
+    }
+  }
+  execsql {SELECT count(*) FROM sequence}
+} {512}
+
+# Make a series of changes using an UPDATE OR REPLACE and a
+# correlated subquery.  This would cause database corruption
+# prior to the fix for ticket #2832.
+#
+do_test sidedelete-2.0 {
+  execsql {
+    CREATE TABLE t1(a PRIMARY KEY, b);
+    CREATE TABLE chng(a PRIMARY KEY, b);
+    SELECT count(*) FROM t1;
+    SELECT count(*) FROM chng;
+  }
+} {0 0}
+for {set i 2} {$i<=100} {incr i} {
+  set n [expr {($i+2)/2}]
+  do_test sidedelete-2.$i.1 {
+    execsql {
+      DELETE FROM t1;
+      INSERT INTO t1 SELECT a, a FROM sequence WHERE a<=$i;
+      DELETE FROM chng;
+      INSERT INTO chng SELECT a*2, a*2+1 FROM sequence WHERE a<=$i/2;
+      UPDATE OR REPLACE t1 SET a=(SELECT b FROM chng WHERE a=t1.a);
+      SELECT count(*), sum(a) FROM t1;
+    }
+  } [list $n [expr {$n*$n-1}]]
+  integrity_check sidedelete-2.$i.2
+}
+
+# This will cause stacks leaks but not database corruption prior
+# to the #2832 fix.
+#
+do_test sidedelete-3.0 {
+  execsql {
+     DROP TABLE t1;
+     CREATE TABLE t1(a PRIMARY KEY);
+     SELECT * FROM t1;
+  }
+} {}
+for {set i 1} {$i<=100} {incr i} {
+  set n [expr {($i+1)/2}]
+  do_test sidedelete-3.$i.1 {
+    execsql {
+      DELETE FROM t1;
+      INSERT INTO t1 SELECT a FROM sequence WHERE a<=$i;
+      UPDATE OR REPLACE t1 SET a=a+1;
+      SELECT count(*), sum(a) FROM t1;
+    }
+  } [list $n [expr {$n*($n+1)}]]
+  integrity_check sidedelete-3.$i.2
+}
+
+finish_test
diff --git a/test/skipscan1.test b/test/skipscan1.test
new file mode 100644
index 0000000000000000000000000000000000000000..379de1956c494b1d1024c54d0047662518ff255b
--- /dev/null
+++ b/test/skipscan1.test
@@ -0,0 +1,432 @@
+# 2013-11-13
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements tests of the "skip-scan" query strategy.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_execsql_test skipscan1-1.1 {
+  CREATE TABLE t1(a TEXT, b INT, c INT, d INT);
+  CREATE INDEX t1abc ON t1(a,b,c);
+  INSERT INTO t1 VALUES('abc',123,4,5);
+  INSERT INTO t1 VALUES('abc',234,5,6);
+  INSERT INTO t1 VALUES('abc',234,6,7);
+  INSERT INTO t1 VALUES('abc',345,7,8);
+  INSERT INTO t1 VALUES('def',567,8,9);
+  INSERT INTO t1 VALUES('def',345,9,10);
+  INSERT INTO t1 VALUES('bcd',100,6,11);
+
+  /* Fake the sqlite_stat1 table so that the query planner believes
+  ** the table contains thousands of rows and that the first few
+  ** columns are not selective. */
+  ANALYZE;
+  DELETE FROM sqlite_stat1;
+  INSERT INTO sqlite_stat1 VALUES('t1','t1abc','10000 5000 2000 10');
+  ANALYZE sqlite_master;
+} {}
+
+# Simple queries that leave the first one or two columns of the
+# index unconstrainted.
+#
+do_execsql_test skipscan1-1.2 {
+  SELECT a,b,c,d,'|' FROM t1 WHERE b=345 ORDER BY a;
+} {abc 345 7 8 | def 345 9 10 |}
+do_execsql_test skipscan1-1.2eqp {
+  EXPLAIN QUERY PLAN
+  SELECT a,b,c,d,'|' FROM t1 WHERE d<>99 AND b=345 ORDER BY a;
+} {/* USING INDEX t1abc (ANY(a) AND b=?)*/}
+do_execsql_test skipscan1-1.2sort {
+  EXPLAIN QUERY PLAN
+  SELECT a,b,c,d,'|' FROM t1 WHERE d<>99 AND b=345 ORDER BY a;
+} {~/*ORDER BY*/}
+
+do_execsql_test skipscan1-1.3 {
+  SELECT a,b,c,d,'|' FROM t1 WHERE d<>99 AND b=345 ORDER BY a DESC;
+} {def 345 9 10 | abc 345 7 8 |}
+do_execsql_test skipscan1-1.3eqp {
+  EXPLAIN QUERY PLAN
+  SELECT a,b,c,d,'|' FROM t1 WHERE d<>99 AND b=345 ORDER BY a DESC;
+} {/* USING INDEX t1abc (ANY(a) AND b=?)*/}
+do_execsql_test skipscan1-1.3sort {
+  EXPLAIN QUERY PLAN
+  SELECT a,b,c,d,'|' FROM t1 WHERE d<>99 AND b=345 ORDER BY a DESC;
+} {~/*ORDER BY*/}
+
+do_execsql_test skipscan1-1.4 {
+  SELECT a,b,c,d,'|' FROM t1 WHERE c=6 ORDER BY a, b, c;
+} {abc 234 6 7 | bcd 100 6 11 |}
+do_execsql_test skipscan1-1.4eqp {
+  EXPLAIN QUERY PLAN
+  SELECT a,b,c,d,'|' FROM t1 WHERE c=6 ORDER BY a, b, c;
+} {/* USING INDEX t1abc (ANY(a) AND ANY(b) AND c=?)*/}
+do_execsql_test skipscan1-1.4sort {
+  EXPLAIN QUERY PLAN
+  SELECT a,b,c,d,'|' FROM t1 WHERE c=6 ORDER BY a, b, c;
+} {~/*ORDER BY*/}
+
+do_execsql_test skipscan1-1.5 {
+  SELECT a,b,c,d,'|' FROM t1 WHERE c IN (6,7) ORDER BY a, b, c;
+} {abc 234 6 7 | abc 345 7 8 | bcd 100 6 11 |}
+do_execsql_test skipscan1-1.5eqp {
+  EXPLAIN QUERY PLAN
+  SELECT a,b,c,d,'|' FROM t1 WHERE c IN (6,7) ORDER BY a, b, c;
+} {/* USING INDEX t1abc (ANY(a) AND ANY(b) AND c=?)*/}
+do_execsql_test skipscan1-1.5sort {
+  EXPLAIN QUERY PLAN
+  SELECT a,b,c,d,'|' FROM t1 WHERE c IN (6,7) ORDER BY a, b, c;
+} {~/*ORDER BY*/}
+
+do_execsql_test skipscan1-1.6 {
+  SELECT a,b,c,d,'|' FROM t1 WHERE c BETWEEN 6 AND 7 ORDER BY a, b, c;
+} {abc 234 6 7 | abc 345 7 8 | bcd 100 6 11 |}
+do_execsql_test skipscan1-1.6eqp {
+  EXPLAIN QUERY PLAN
+  SELECT a,b,c,d,'|' FROM t1 WHERE c BETWEEN 6 AND 7 ORDER BY a, b, c;
+} {/* USING INDEX t1abc (ANY(a) AND ANY(b) AND c>? AND c<?)*/}
+do_execsql_test skipscan1-1.6sort {
+  EXPLAIN QUERY PLAN
+  SELECT a,b,c,d,'|' FROM t1 WHERE c BETWEEN 6 AND 7 ORDER BY a, b, c;
+} {~/*ORDER BY*/}
+
+do_execsql_test skipscan1-1.7 {
+  SELECT a,b,c,d,'|' FROM t1 WHERE b IN (234, 345) AND c BETWEEN 6 AND 7
+   ORDER BY a, b;
+} {abc 234 6 7 | abc 345 7 8 |}
+do_execsql_test skipscan1-1.7eqp {
+  EXPLAIN QUERY PLAN
+  SELECT a,b,c,d,'|' FROM t1 WHERE b IN (234, 345) AND c BETWEEN 6 AND 7
+   ORDER BY a, b;
+} {/* USING INDEX t1abc (ANY(a) AND b=? AND c>? AND c<?)*/}
+do_execsql_test skipscan1-1.7sort {
+  EXPLAIN QUERY PLAN
+  SELECT a,b,c,d,'|' FROM t1 WHERE b IN (234, 345) AND c BETWEEN 6 AND 7
+   ORDER BY a, b;
+} {~/*ORDER BY*/}
+
+
+# Joins
+#
+do_execsql_test skipscan1-1.51 {
+  CREATE TABLE t1j(x TEXT, y INTEGER);
+  INSERT INTO t1j VALUES('one',1),('six',6),('ninty-nine',99);
+  INSERT INTO sqlite_stat1 VALUES('t1j',null,'3');
+  ANALYZE sqlite_master;
+  SELECT x, a, b, c, d, '|' FROM t1j, t1 WHERE c=y ORDER BY +a;
+} {six abc 234 6 7 | six bcd 100 6 11 |}
+do_execsql_test skipscan1-1.51eqp {
+  EXPLAIN QUERY PLAN
+  SELECT x, a, b, c, d, '|' FROM t1j, t1 WHERE c=y ORDER BY +a;
+} {/* INDEX t1abc (ANY(a) AND ANY(b) AND c=?)*/}
+
+do_execsql_test skipscan1-1.52 {
+  SELECT x, a, b, c, d, '|' FROM t1j LEFT JOIN t1 ON c=y ORDER BY +y, +a;
+} {one {} {} {} {} | six abc 234 6 7 | six bcd 100 6 11 | ninty-nine {} {} {} {} |}
+do_execsql_test skipscan1-1.52eqp {
+  EXPLAIN QUERY PLAN
+  SELECT x, a, b, c, d, '|' FROM t1j LEFT JOIN t1 ON c=y ORDER BY +y, +a;
+} {/* INDEX t1abc (ANY(a) AND ANY(b) AND c=?)*/}
+
+do_execsql_test skipscan1-2.1 {
+  CREATE TABLE t2(a TEXT, b INT, c INT, d INT,
+                  PRIMARY KEY(a,b,c));
+  INSERT INTO t2 SELECT * FROM t1;
+
+  /* Fake the sqlite_stat1 table so that the query planner believes
+  ** the table contains thousands of rows and that the first few
+  ** columns are not selective. */
+  ANALYZE;
+  UPDATE sqlite_stat1 SET stat='10000 5000 2000 10' WHERE idx NOT NULL;
+  ANALYZE sqlite_master;
+} {}
+
+do_execsql_test skipscan1-2.2 {
+  SELECT a,b,c,d,'|' FROM t2 WHERE d<>99 AND b=345 ORDER BY a;
+} {abc 345 7 8 | def 345 9 10 |}
+do_execsql_test skipscan1-2.2eqp {
+  EXPLAIN QUERY PLAN
+  SELECT a,b,c,d,'|' FROM t2 WHERE d<>99 AND b=345 ORDER BY a;
+} {/* USING INDEX sqlite_autoindex_t2_1 (ANY(a) AND b=?)*/}
+do_execsql_test skipscan1-2.2sort {
+  EXPLAIN QUERY PLAN
+  SELECT a,b,c,d,'|' FROM t2 WHERE d<>99 AND b=345 ORDER BY a;
+} {~/*ORDER BY*/}
+
+
+do_execsql_test skipscan1-3.1 {
+  CREATE TABLE t3(a TEXT, b INT, c INT, d INT,
+                  PRIMARY KEY(a,b,c)) WITHOUT ROWID;
+  INSERT INTO t3 SELECT * FROM t1;
+
+  /* Fake the sqlite_stat1 table so that the query planner believes
+  ** the table contains thousands of rows and that the first few
+  ** columns are not selective. */
+  ANALYZE;
+  UPDATE sqlite_stat1 SET stat='10000 5000 2000 10' WHERE idx NOT NULL;
+  ANALYZE sqlite_master;
+} {}
+
+do_execsql_test skipscan1-3.2 {
+  SELECT a,b,c,d,'|' FROM t3 WHERE b=345 ORDER BY a;
+} {abc 345 7 8 | def 345 9 10 |}
+do_execsql_test skipscan1-3.2eqp {
+  EXPLAIN QUERY PLAN
+  SELECT a,b,c,d,'|' FROM t3 WHERE b=345 ORDER BY a;
+} {/* PRIMARY KEY (ANY(a) AND b=?)*/}
+do_execsql_test skipscan1-3.2sort {
+  EXPLAIN QUERY PLAN
+  SELECT a,b,c,d,'|' FROM t3 WHERE b=345 ORDER BY a;
+} {~/*ORDER BY*/}
+
+# Ticket 520070ec7fbaac: Array overrun in the skip-scan optimization
+# 2013-12-22
+#
+do_execsql_test skipscan1-4.1 {
+  CREATE TABLE t4(a,b,c,d,e,f,g,h,i);
+  CREATE INDEX t4all ON t4(a,b,c,d,e,f,g,h);
+  INSERT INTO t4 VALUES(1,2,3,4,5,6,7,8,9);
+  ANALYZE;
+  DELETE FROM sqlite_stat1;
+  INSERT INTO sqlite_stat1 
+    VALUES('t4','t4all','655360 163840 40960 10240 2560 640 160 40 10');
+  ANALYZE sqlite_master;
+  SELECT i FROM t4 WHERE a=1;
+  SELECT i FROM t4 WHERE b=2;
+  SELECT i FROM t4 WHERE c=3;
+  SELECT i FROM t4 WHERE d=4;
+  SELECT i FROM t4 WHERE e=5;
+  SELECT i FROM t4 WHERE f=6;
+  SELECT i FROM t4 WHERE g=7;
+  SELECT i FROM t4 WHERE h=8;
+} {9 9 9 9 9 9 9 9}
+
+# Make sure skip-scan cost computation in the query planner takes into
+# account the fact that the seek must occur multiple times.
+#
+# Prior to 2014-03-10, the costs were computed incorrectly which would
+# cause index t5i2 to be used instead of t5i1 on the skipscan1-5.3.
+#
+do_execsql_test skipscan1-5.1 {
+  CREATE TABLE t5(
+    id INTEGER PRIMARY KEY,
+    loc TEXT,
+    lang INTEGER,
+    utype INTEGER,
+    xa INTEGER,
+    xd INTEGER,
+    xh INTEGER
+  );
+  CREATE INDEX t5i1 on t5(loc, xh, xa, utype, lang);
+  CREATE INDEX t5i2 ON t5(xd,loc,utype,lang);
+  EXPLAIN QUERY PLAN
+    SELECT xh, loc FROM t5 WHERE loc >= 'M' AND loc < 'N';
+} {/.*COVERING INDEX t5i1 .*/}
+do_execsql_test skipscan1-5.2 {
+  ANALYZE;
+  DELETE FROM sqlite_stat1;
+  DROP TABLE IF EXISTS sqlite_stat4;
+  INSERT INTO sqlite_stat1 VALUES('t5','t5i1','2702931 3 2 2 2 2');
+  INSERT INTO sqlite_stat1 VALUES('t5','t5i2','2702931 686 2 2 2');
+  ANALYZE sqlite_master;
+} {}
+db cache flush
+do_execsql_test skipscan1-5.3 {
+  EXPLAIN QUERY PLAN
+    SELECT xh, loc FROM t5 WHERE loc >= 'M' AND loc < 'N';
+} {/.*COVERING INDEX t5i1 .*/}
+
+# The column used by the skip-scan needs to be sufficiently selective.
+# See the private email from Adi Zaimi to drh@sqlite.org on 2014-09-22.
+#
+db close
+forcedelete test.db
+sqlite3 db test.db
+do_execsql_test skipscan1-6.1 {
+  CREATE TABLE t1(a,b,c,d,e,f,g,h varchar(300));
+  CREATE INDEX t1ab ON t1(a,b);
+  ANALYZE sqlite_master;
+  -- Only two distinct values for the skip-scan column.  Skip-scan is not used.
+  INSERT INTO sqlite_stat1 VALUES('t1','t1ab','500000 250000 125000');
+  ANALYZE sqlite_master;
+  EXPLAIN QUERY PLAN SELECT * FROM t1 WHERE b=1;
+} {~/ANY/}
+do_execsql_test skipscan1-6.2 {
+  -- Four distinct values for the skip-scan column.  Skip-scan is used.
+  UPDATE sqlite_stat1 SET stat='500000 250000 62500';
+  ANALYZE sqlite_master;
+  EXPLAIN QUERY PLAN SELECT * FROM t1 WHERE b=1;
+} {/ANY.a. AND b=/}
+do_execsql_test skipscan1-6.3 {
+  -- Two distinct values for the skip-scan column again.  Skip-scan is not used.
+  UPDATE sqlite_stat1 SET stat='500000 125000 62500';
+  ANALYZE sqlite_master;
+  EXPLAIN QUERY PLAN SELECT * FROM t1 WHERE b=1;
+} {~/ANY/}
+
+# If the sqlite_stat1 entry includes the "noskipscan" token, then never use
+# skipscan with that index.
+#
+do_execsql_test skipscan1-7.1 {
+  UPDATE sqlite_stat1 SET stat='500000 125000 1 sz=100';
+  ANALYZE sqlite_master;
+  EXPLAIN QUERY PLAN SELECT * FROM t1 WHERE b=1;
+} {/ANY/}
+do_execsql_test skipscan1-7.2 {
+  UPDATE sqlite_stat1 SET stat='500000 125000 1 noskipscan sz=100';
+  ANALYZE sqlite_master;
+  EXPLAIN QUERY PLAN SELECT * FROM t1 WHERE b=1;
+} {~/ANY/}
+do_execsql_test skipscan1-7.3 {
+  UPDATE sqlite_stat1 SET stat='500000 125000 1 sz=100 noskipscan';
+  ANALYZE sqlite_master;
+  EXPLAIN QUERY PLAN SELECT * FROM t1 WHERE b=1;
+} {~/ANY/}
+
+# Ticket 8fd39115d8f46ece70e7d4b3c481d1bd86194746  2015-07-23
+# Incorrect code generated for a skipscan within an OR optimization
+# on a WITHOUT ROWID table.
+#
+do_execsql_test skipscan1-8.1 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(x, y, PRIMARY KEY(x,y)) WITHOUT ROWID;
+  INSERT INTO t1(x,y) VALUES(1,'AB');
+  INSERT INTO t1(x,y) VALUES(2,'CD');
+  ANALYZE;
+  DROP TABLE IF EXISTS sqlite_stat4;
+  DELETE FROM sqlite_stat1;
+  INSERT INTO sqlite_stat1(tbl,idx,stat) VALUES('t1','t1','1000000 100 1');
+  ANALYZE sqlite_master;
+  SELECT * FROM t1
+   WHERE (y = 'AB' AND x <= 4)
+      OR (y = 'EF' AND x = 5);
+} {1 AB}
+do_execsql_test skipscan1-8.1eqp {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t1
+   WHERE (y = 'AB' AND x <= 4)
+      OR (y = 'EF' AND x = 5);
+} {/ANY/}
+do_execsql_test skipscan1-8.2 {
+  SELECT * FROM t1
+   WHERE y = 'AB' OR (y = 'CD' AND x = 2)
+  ORDER BY +x;
+} {1 AB 2 CD}
+
+# Segfault reported on the mailing list by Keith Medcalf on 2016-09-18.
+# A skip-scan with a "column IN (SELECT ...)" on the second term of the
+# index.
+#
+do_execsql_test skipscan1-9.2 {
+  CREATE TABLE t9a(a,b,c);
+  CREATE INDEX t9a_ab ON t9a(a,b);
+  CREATE TABLE t9b(x,y);
+  ANALYZE sqlite_master;
+  INSERT INTO sqlite_stat1 VALUES('t9a','t9a_ab','1000000 250000 1');
+  ANALYZE sqlite_master;
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t9a WHERE b IN (SELECT x FROM t9b WHERE y!=5);
+} {/USING INDEX t9a_ab .ANY.a. AND b=./}
+
+
+optimization_control db skip-scan off
+do_execsql_test skipscan1-9.3 {
+  EXPLAIN QUERY PLAN
+  SELECT  * FROM t9a WHERE b IN (SELECT x FROM t9b WHERE y!=5);
+} {/{SCAN t9a}/}
+optimization_control db all on
+
+do_execsql_test skipscan1-2.1 {
+  CREATE TABLE t6(a TEXT, b INT, c INT, d INT);
+  CREATE INDEX t6abc ON t6(a,b,c);
+  INSERT INTO t6 VALUES('abc',123,4,5);
+
+  ANALYZE;
+  DELETE FROM sqlite_stat1;
+  INSERT INTO sqlite_stat1 VALUES('t6','t6abc','10000 5000 2000 10');
+  ANALYZE sqlite_master;
+  DELETE FROM t6;
+} {}
+
+do_execsql_test skipscan1-2.2eqp {
+  EXPLAIN QUERY PLAN
+  SELECT a,b,c,d,'|' FROM t6 WHERE d<>99 AND b=345 ORDER BY a;
+} {/* USING INDEX t6abc (ANY(a) AND b=?)*/}
+do_execsql_test skipscan1-2.2 {
+  SELECT a,b,c,d,'|' FROM t6 WHERE d<>99 AND b=345 ORDER BY a;
+} {}
+
+do_execsql_test skipscan1-2.3eqp {
+  EXPLAIN QUERY PLAN
+  SELECT a,b,c,d,'|' FROM t6 WHERE d<>99 AND b=345 ORDER BY a DESC;
+} {/* USING INDEX t6abc (ANY(a) AND b=?)*/}
+do_execsql_test skipscan1-2.3 {
+  SELECT a,b,c,d,'|' FROM t6 WHERE d<>99 AND b=345 ORDER BY a DESC;
+} {}
+
+# 2019-07-29 Ticket ced41c7c7d6b4d36
+# A skipscan query is not order-distinct
+#
+db close
+sqlite3 db :memory:
+do_execsql_test skipscan1-3.1 {
+  CREATE TABLE t1 (c1, c2, c3, c4, PRIMARY KEY(c4, c3));
+  INSERT INTO t1 VALUES(3,0,1,NULL);
+  INSERT INTO t1 VALUES(0,4,1,NULL);
+  INSERT INTO t1 VALUES(5,6,1,NULL);
+  INSERT INTO t1 VALUES(0,4,1,NULL);
+  ANALYZE sqlite_master;
+  INSERT INTO sqlite_stat1 VALUES('t1','sqlite_autoindex_t1_1','18 18 6');
+  ANALYZE sqlite_master;
+  SELECT DISTINCT quote(c1), quote(c2), quote(c3), quote(c4), '|'
+    FROM t1 WHERE t1.c3 = 1;
+} {3 0 1 NULL | 0 4 1 NULL | 5 6 1 NULL |}
+do_eqp_test skipscan1-3.2 {
+  SELECT DISTINCT quote(c1), quote(c2), quote(c3), quote(c4), '|'
+    FROM t1 WHERE t1.c3 = 1;
+} {
+  QUERY PLAN
+  |--SEARCH t1 USING INDEX sqlite_autoindex_t1_1 (ANY(c4) AND c3=?)
+  `--USE TEMP B-TREE FOR DISTINCT
+}
+
+# 2020-01-06 ticket 304017f5f04a0035
+#
+reset_db
+do_execsql_test skipscan1-4.10 {
+  CREATE TABLE t1(a,b INT);
+  INSERT INTO t1(a,b) VALUES(1,2),(3,3),(4,5);
+  CREATE UNIQUE INDEX i1 ON t1(b,b,a,a,a,a,a,b,a);
+  ANALYZE;
+  DROP TABLE IF EXISTS sqlite_stat4;
+  INSERT INTO sqlite_stat1 VALUES('t1','i1','30 30 30 2 2 2 2 2 2 2');
+  ANALYZE sqlite_master;
+
+  SELECT DISTINCT a
+    FROM t1
+   WHERE a = b
+     AND a = 3
+     AND b IN (1,3,2,4)
+     AND b >= 0
+     AND a <= 10;
+} {3}
+
+# 2023-03-24 https://sqlite.org/forum/forumpost/8cc1dc0fe9
+#
+reset_db
+do_execsql_test skipscan1-5.0 {
+  CREATE TABLE t1(a TEXT, UNIQUE(a,a,a));
+  INSERT INTO t1 VALUES (hex(zeroblob(241))),(1),(2),(3);
+  ANALYZE;
+  SELECT max(a) FROM t1 WHERE a IN t1;
+} {3}
+
+finish_test
diff --git a/test/skipscan2.test b/test/skipscan2.test
new file mode 100644
index 0000000000000000000000000000000000000000..aa870d4565c35541d4272ae2a49a1386fb3b4a81
--- /dev/null
+++ b/test/skipscan2.test
@@ -0,0 +1,205 @@
+# 2013-11-27
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements tests of the "skip-scan" query strategy.
+#
+# The test cases in this file are derived from the description of
+# the skip-scan query strategy in the "optoverview.html" document.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_execsql_test skipscan2-1.1 {
+  CREATE TABLE people(
+    name TEXT PRIMARY KEY,
+    role TEXT NOT NULL,
+    height INT NOT NULL, -- in cm
+    CHECK( role IN ('student','teacher') )
+  );
+  CREATE INDEX people_idx1 ON people(role, height);
+} {}
+do_execsql_test skipscan2-1.2 {
+  INSERT INTO people VALUES('Alice','student',156);
+  INSERT INTO people VALUES('Bob','student',161);
+  INSERT INTO people VALUES('Cindy','student',155);
+  INSERT INTO people VALUES('David','student',181);
+  INSERT INTO people VALUES('Emily','teacher',158);
+  INSERT INTO people VALUES('Fred','student',163);
+  INSERT INTO people VALUES('Ginny','student',169);
+  INSERT INTO people VALUES('Harold','student',172);
+  INSERT INTO people VALUES('Imma','student',179);
+  INSERT INTO people VALUES('Jack','student',181);
+  INSERT INTO people VALUES('Karen','student',163);
+  INSERT INTO people VALUES('Logan','student',177);
+  INSERT INTO people VALUES('Megan','teacher',159);
+  INSERT INTO people VALUES('Nathan','student',163);
+  INSERT INTO people VALUES('Olivia','student',161);
+  INSERT INTO people VALUES('Patrick','teacher',180);
+  INSERT INTO people VALUES('Quiana','student',182);
+  INSERT INTO people VALUES('Robert','student',159);
+  INSERT INTO people VALUES('Sally','student',166);
+  INSERT INTO people VALUES('Tom','student',171);
+  INSERT INTO people VALUES('Ursula','student',170);
+  INSERT INTO people VALUES('Vance','student',179);
+  INSERT INTO people VALUES('Willma','student',175);
+  INSERT INTO people VALUES('Xavier','teacher',185);
+  INSERT INTO people VALUES('Yvonne','student',149);
+  INSERT INTO people VALUES('Zach','student',170);
+}
+
+# Without ANALYZE, a skip-scan is not used
+#
+do_execsql_test skipscan2-1.3 {
+  SELECT name FROM people WHERE height>=180 ORDER BY +name;
+} {David Jack Patrick Quiana Xavier}
+do_execsql_test skipscan2-1.3eqp {
+  EXPLAIN QUERY PLAN
+  SELECT name FROM people WHERE height>=180 ORDER BY +name;
+} {~/*INDEX people_idx1 */}
+
+# Now do an ANALYZE.  A skip-scan can be used after ANALYZE.
+#
+do_execsql_test skipscan2-1.4 {
+  ANALYZE;
+  -- We do not have enough people above to actually force the use
+  -- of a skip-scan.  So make a manual adjustment to the stat1 table
+  -- to make it seem like there are many more.
+  UPDATE sqlite_stat1 SET stat='10000 5000 20' WHERE idx='people_idx1';
+  UPDATE sqlite_stat1 SET stat='10000 1' WHERE idx='sqlite_autoindex_people_1';
+  ANALYZE sqlite_master;
+}
+db cache flush
+do_execsql_test skipscan2-1.5 {
+  SELECT name FROM people WHERE height>=180 ORDER BY +name;
+} {David Jack Patrick Quiana Xavier}
+do_execsql_test skipscan2-1.5eqp {
+  EXPLAIN QUERY PLAN
+  SELECT name FROM people WHERE height>=180 ORDER BY +name;
+} {/*INDEX people_idx1 */}
+
+# Same answer with other formulations of the same query
+#
+do_execsql_test skipscan2-1.6 {
+  SELECT name FROM people
+   WHERE role IN (SELECT DISTINCT role FROM people)
+     AND height>=180 ORDER BY +name;
+} {David Jack Patrick Quiana Xavier}
+do_execsql_test skipscan2-1.7 {
+  SELECT name FROM people WHERE role='teacher' AND height>=180
+  UNION ALL
+  SELECT name FROM people WHERE role='student' AND height>=180
+  ORDER BY 1;
+} {David Jack Patrick Quiana Xavier}
+
+# Add 8 more people, bringing the total to 34.  Then the number of
+# duplicates in the left-column of the index will be 17 and 
+# skip-scan should not be used after an (unfudged) ANALYZE.
+#
+do_execsql_test skipscan2-1.8 {
+  INSERT INTO people VALUES('Angie','student',166);
+  INSERT INTO people VALUES('Brad','student',176);
+  INSERT INTO people VALUES('Claire','student',168);
+  INSERT INTO people VALUES('Donald','student',162);
+  INSERT INTO people VALUES('Elaine','student',177);
+  INSERT INTO people VALUES('Frazier','student',159);
+  INSERT INTO people VALUES('Grace','student',179);
+  INSERT INTO people VALUES('Horace','student',166);
+  ANALYZE;
+  SELECT stat FROM sqlite_stat1 WHERE idx='people_idx1';
+} {{34 17 2}}
+db cache flush
+do_execsql_test skipscan2-1.9 {
+  SELECT name FROM people WHERE height>=180 ORDER BY +name;
+} {David Jack Patrick Quiana Xavier}
+do_execsql_test skipscan2-1.9eqp {
+  EXPLAIN QUERY PLAN
+  SELECT name FROM people WHERE height>=180 ORDER BY +name;
+} {~/*INDEX people_idx1 */}
+
+# Add 2 more people, bringing the total to 36.  Then the number of
+# duplicates in the left-column of the index will be 18 and 
+# skip-scan will be used after an (unfudged) ANALYZE.
+#
+do_execsql_test skipscan2-1.10 {
+  INSERT INTO people VALUES('Ingrad','student',155);
+  INSERT INTO people VALUES('Jacob','student',179);
+  ANALYZE;
+  SELECT stat FROM sqlite_stat1 WHERE idx='people_idx1';
+} {{36 18 2}}
+db cache flush
+do_execsql_test skipscan2-1.11 {
+  SELECT name FROM people WHERE height>=180 ORDER BY +name;
+} {David Jack Patrick Quiana Xavier}
+do_execsql_test skipscan2-1.11eqp {
+  EXPLAIN QUERY PLAN
+  SELECT name FROM people WHERE height>=180 ORDER BY +name;
+} {/*INDEX people_idx1 */}
+
+
+# Repeat using a WITHOUT ROWID table.
+#
+do_execsql_test skipscan2-2.1 {
+  CREATE TABLE peoplew(
+    name TEXT PRIMARY KEY,
+    role TEXT NOT NULL,
+    height INT NOT NULL, -- in cm
+    CHECK( role IN ('student','teacher') )
+  ) WITHOUT ROWID;
+  CREATE INDEX peoplew_idx1 ON peoplew(role, height);
+  INSERT INTO peoplew(name,role,height)
+     SELECT name, role, height FROM  people;
+  SELECT name FROM peoplew WHERE height>=180 ORDER BY +name;
+} {David Jack Patrick Quiana Xavier}
+do_execsql_test skipscan2-2.2 {
+  SELECT name FROM peoplew
+   WHERE role IN (SELECT DISTINCT role FROM peoplew)
+     AND height>=180 ORDER BY +name;
+} {David Jack Patrick Quiana Xavier}
+do_execsql_test skipscan2-2.2 {
+  SELECT name FROM peoplew WHERE role='teacher' AND height>=180
+  UNION ALL
+  SELECT name FROM peoplew WHERE role='student' AND height>=180
+  ORDER BY 1;
+} {David Jack Patrick Quiana Xavier}
+
+# Now do an ANALYZE.  A skip-scan can be used after ANALYZE.
+#
+do_execsql_test skipscan2-2.4 {
+  ANALYZE;
+}
+db cache flush
+do_execsql_test skipscan2-2.5 {
+  SELECT name FROM peoplew WHERE height>=180 ORDER BY +name;
+} {David Jack Patrick Quiana Xavier}
+do_execsql_test skipscan2-2.5eqp {
+  EXPLAIN QUERY PLAN
+  SELECT name FROM peoplew WHERE height>=180 ORDER BY +name;
+} {/*INDEX peoplew_idx1 */}
+
+# A skip-scan on a PK index of a WITHOUT ROWID table.
+#
+do_execsql_test skipscan2-3.1 {
+  CREATE TABLE t3(a, b, c, PRIMARY KEY(a, b)) WITHOUT ROWID;
+}
+do_test skipscan2-3.2 {
+  for {set i 0} {$i < 1000} {incr i} {
+    execsql { INSERT INTO t3 VALUES($i%2, $i, 'xyz') }
+  }
+  execsql { ANALYZE }
+} {}
+do_eqp_test skipscan2-3.3eqp {
+  SELECT * FROM t3 WHERE b=42;
+} {SEARCH t3 USING PRIMARY KEY (ANY(a) AND b=?)}
+
+
+
+finish_test
diff --git a/test/skipscan3.test b/test/skipscan3.test
new file mode 100644
index 0000000000000000000000000000000000000000..260d11cac957906e7ac2d6c2a0182d06b29c2d4d
--- /dev/null
+++ b/test/skipscan3.test
@@ -0,0 +1,73 @@
+# 2014-08-20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements tests of the "skip-scan" query strategy.
+# In particular, this file looks at skipping intermediate terms
+# in an index.  For example, if (a,b,c) are indexed, and we have
+# "WHERE a=?1 AND c=?2" - verify that skip-scan can still be used.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_execsql_test skipscan3-1.1 {
+  CREATE TABLE t1(a,b,c,d,PRIMARY KEY(a,b,c));
+  WITH RECURSIVE
+    c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<1000)
+  INSERT INTO t1(a,b,c,d)
+    SELECT 1, 1, x, printf('x%04d',x) FROM c;
+  ANALYZE;
+} {}
+
+# This version has long used skip-scan because of the "+a"
+#
+do_execsql_test skipscan3-1.2eqp {
+  EXPLAIN QUERY PLAN SELECT d FROM t1 WHERE +a=1 AND c=32;
+} {/*ANY(a) AND ANY(b)*/}
+do_execsql_test skipscan3-1.2 {
+  SELECT d FROM t1 WHERE +a=1 AND c=32;
+} {x0032}
+
+# This version (with "a" instead of "+a") should use skip-scan but
+# did not prior to changes implemented on 2014-08-20
+#
+do_execsql_test skipscan3-1.3eqp {
+  EXPLAIN QUERY PLAN SELECT d FROM t1 WHERE a=1 AND c=32;
+} {/*ANY(a) AND ANY(b)*/}
+do_execsql_test skipscan3-1.3 {
+  SELECT d FROM t1 WHERE a=1 AND c=32;
+} {x0032}
+
+# Repeat the test on a WITHOUT ROWID table
+#
+do_execsql_test skipscan3-2.1 {
+  CREATE TABLE t2(a,b,c,d,PRIMARY KEY(a,b,c)) WITHOUT ROWID;
+  WITH RECURSIVE
+    c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<1000)
+  INSERT INTO t2(a,b,c,d)
+    SELECT 1, 1, x, printf('x%04d',x) FROM c;
+  ANALYZE;
+} {}
+do_execsql_test skipscan3-2.2eqp {
+  EXPLAIN QUERY PLAN SELECT d FROM t2 WHERE +a=1 AND c=32;
+} {/*ANY(a) AND ANY(b)*/}
+do_execsql_test skipscan3-2.2 {
+  SELECT d FROM t2 WHERE +a=1 AND c=32;
+} {x0032}
+do_execsql_test skipscan3-2.3eqp {
+  EXPLAIN QUERY PLAN SELECT d FROM t2 WHERE a=1 AND c=32;
+} {/*ANY(a) AND ANY(b)*/}
+do_execsql_test skipscan3-2.3 {
+  SELECT d FROM t2 WHERE a=1 AND c=32;
+} {x0032}
+
+  
+finish_test
diff --git a/test/skipscan5.test b/test/skipscan5.test
new file mode 100644
index 0000000000000000000000000000000000000000..026356e6c0b01d5cde46139bb90ee741d342ca65
--- /dev/null
+++ b/test/skipscan5.test
@@ -0,0 +1,182 @@
+# 2013-11-13
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements tests of the "skip-scan" query strategy. In 
+# particular it tests that stat4 data can be used by a range query
+# that uses the skip-scan approach.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix skipscan5
+
+ifcapable !stat4 {
+  finish_test
+  return
+}
+
+do_execsql_test 1.1 {
+  CREATE TABLE t1(a INT, b INT, c INT);
+  CREATE INDEX i1 ON t1(a, b);
+} {}
+
+expr srand(4)
+do_test 1.2 {
+  for {set i 0} {$i < 1000} {incr i} {
+    set a [expr int(rand()*4.0) + 1]
+    set b [expr int(rand()*20.0) + 1]
+    execsql { INSERT INTO t1 VALUES($a, $b, NULL) }
+  }
+  execsql ANALYZE
+} {}
+
+foreach {tn q res} {
+  1  "b = 5"                   {/*ANY(a) AND b=?*/}
+  2  "b > 12 AND b < 16"       {/*ANY(a) AND b>? AND b<?*/}
+  3  "b > 2 AND b < 16"        {/*SCAN t1*/}
+  4  "b > 18 AND b < 25"       {/*ANY(a) AND b>? AND b<?*/}
+  5  "b > 16"                  {/*ANY(a) AND b>?*/}
+  6  "b > 5"                   {/*SCAN t1*/}
+  7  "b < 15"                  {/*SCAN t1*/}
+  8  "b < 5"                   {/*ANY(a) AND b<?*/}
+  9  "5 > b"                   {/*ANY(a) AND b<?*/}
+  10 "b = '5'"                 {/*ANY(a) AND b=?*/}
+  11 "b > '12' AND b < '16'"   {/*ANY(a) AND b>? AND b<?*/}
+  12 "b > '2' AND b < '16'"    {/*SCAN t1*/}
+  13 "b > '18' AND b < '25'"   {/*ANY(a) AND b>? AND b<?*/}
+  14 "b > '16'"                {/*ANY(a) AND b>?*/}
+  15 "b > '5'"                 {/*SCAN t1*/}
+  16 "b < '15'"                {/*SCAN t1*/}
+  17 "b < '5'"                 {/*ANY(a) AND b<?*/}
+  18 "'5' > b"                 {/*ANY(a) AND b<?*/}
+} {
+  set sql "EXPLAIN QUERY PLAN SELECT * FROM t1 WHERE $q"
+  do_execsql_test 1.3.$tn $sql $res
+}
+
+
+#-------------------------------------------------------------------------
+# Test that range-query/skip-scan estimation works with text values.
+# And on UTF-16 databases when there is no UTF-16 collation sequence
+# available.
+#
+
+proc test_collate {enc lhs rhs} {
+  string compare $lhs $rhs
+}
+
+foreach {tn dbenc coll} {
+  1 UTF-8   { add_test_collate db 0 0 1 }
+  2 UTF-16  { add_test_collate db 1 0 0 }
+  3 UTF-8   { add_test_collate db 0 1 0 }
+} {
+  reset_db
+  eval $coll
+
+  do_execsql_test 2.$tn.1 " PRAGMA encoding = '$dbenc' "
+  do_execsql_test 2.$tn.2 {
+    CREATE TABLE t2(a TEXT, b TEXT, c TEXT COLLATE test_collate, d TEXT);
+    CREATE INDEX i2 ON t2(a, b, c);
+  }
+
+  set vocab(d) { :) }
+  set vocab(c) { a b c d e f g h i j k l m n o p q r s t }
+  set vocab(b) { one two three }
+  set vocab(a) { sql }
+
+  do_test 2.$tn.3 {
+    for {set i 0} {$i < 100} {incr i} {
+      foreach var {a b c d} { 
+        set $var [lindex $vocab($var) [expr $i % [llength $vocab($var)]]]
+      }
+      execsql { INSERT INTO t2 VALUES($a, $b, $c, $d) }
+    }
+    execsql ANALYZE
+  } {}
+
+  foreach {tn2 q res} {
+    1 { c BETWEEN 'd' AND 'e' }       {/*ANY(a) AND ANY(b) AND c>? AND c<?*/}
+    2 { c BETWEEN 'b' AND 'r' }       {/*SCAN t2*/}
+    3 { c > 'q' }                     {/*ANY(a) AND ANY(b) AND c>?*/}
+    4 { c > 'e' }                     {/*SCAN t2*/}
+    5 { c < 'q' }                     {/*SCAN t2*/}
+    6 { c < 'b' }                     {/*ANY(a) AND ANY(b) AND c<?*/}
+  } {
+    set sql "EXPLAIN QUERY PLAN SELECT * FROM t2 WHERE $q" 
+    do_execsql_test 2.$tn.$tn2 $sql $res
+  }
+
+}
+
+#-------------------------------------------------------------------------
+# Test that range-query/skip-scan estimation works on columns that contain
+# a variety of types.
+#
+
+reset_db
+do_execsql_test 3.1 {
+  CREATE TABLE t3(a, b, c);
+  CREATE INDEX i3 ON t3(a, b);
+}
+
+set values {
+    NULL NULL NULL
+    NULL -9567 -9240
+    -8725 -8659 -8248.340244520614
+    -8208 -7939 -7746.985758536954
+    -7057 -6550 -5916
+    -5363 -4935.781822975623 -4935.063633571875
+    -3518.4554911770183 -2537 -2026
+    -1511.2603881914456 -1510.4195994839156 -1435
+    -1127.4210136045804 -1045 99
+    1353 1457 1563.2908193223611
+    2245 2286 2552
+    2745.18831295203 2866.279926554429 3075.0468527316334
+    3447 3867 4237.892420141907
+    4335 5052.9775000424015 5232.178240656935
+    5541.784919585003 5749.725576373621 5758
+    6005 6431 7263.477992854769
+    7441 7541 8667.279760663994
+    8857 9199.638673662972 'dl'
+    'dro' 'h' 'igprfq'
+    'jnbd' 'k' 'kordee'
+    'lhwcv' 'mzlb' 'nbjked'
+    'nufpo' 'nxqkdq' 'shelln'
+    'tvzn' 'wpnt' 'wylf'
+    'ydkgu' 'zdb' X''
+    X'0a' X'203f6429f1f33f' X'23858e324545e0362b'
+    X'3f9f8a' X'516f7ddd4b' X'68f1df0930ac6b'
+    X'9ea60d' X'a06f' X'aefd342a39ce36df'
+    X'afaa020fe2' X'be201c' X'c47d97b209601e45'
+}
+
+do_test 3.2 {
+  set c 0
+  foreach v $values {
+    execsql "INSERT INTO t3 VALUES($c % 2, $v, $c)"
+    incr c
+  }
+  execsql ANALYZE
+} {}
+
+foreach {tn q res} {
+  1 "b BETWEEN -10000 AND -8000"       {/*ANY(a) AND b>? AND b<?*/}
+  2 "b BETWEEN -10000 AND 'qqq'"       {/*SCAN t3*/}
+  3 "b < X'5555'"                      {/*SCAN t3*/}
+  4 "b > X'5555'"                      {/*ANY(a) AND b>?*/}
+  5 "b > 'zzz'"                        {/*ANY(a) AND b>?*/}
+  6 "b < 'zzz'"                        {/*SCAN t3*/}
+} {
+  set sql "EXPLAIN QUERY PLAN SELECT * FROM t3 WHERE $q" 
+  do_execsql_test 3.3.$tn $sql $res
+}
+
+finish_test
diff --git a/test/skipscan6.test b/test/skipscan6.test
new file mode 100644
index 0000000000000000000000000000000000000000..4f592bc0e05e03fc0d781304933b84d58c662369
--- /dev/null
+++ b/test/skipscan6.test
@@ -0,0 +1,191 @@
+# 2014-10-21
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements tests of the "skip-scan" query strategy. In 
+# particular, this file verifies that use of all columns of an index
+# is always preferred over the use of a skip-scan on some columns of
+# the same index.  Because of difficulties in scoring a skip-scan,
+# the skip-scan can sometimes come out with a lower raw score when
+# using STAT4.  But the query planner should detect this and use the
+# full index rather than the skip-scan.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix skipscan6
+
+ifcapable !stat4 {
+  finish_test
+  return
+}
+
+do_execsql_test 1.1 {
+  CREATE TABLE t1(
+    aa int,
+    bb int,
+    cc int,
+    dd int,
+    ee int
+  );
+  CREATE INDEX ix on t1(aa, bb, cc,  dd DESC);
+  ANALYZE sqlite_master;
+  INSERT INTO sqlite_stat1 VALUES('t1','ix','2695116 1347558 264 18 2');
+  INSERT INTO sqlite_stat4 VALUES('t1','ix','2677151 196859 196859 32 1','0 15043 15043 92468 92499','0 19 286 81846 92499',X'0609010804031552977BD725BD28');
+  INSERT INTO sqlite_stat4 VALUES('t1','ix','2677151 14687 161 1 1','0 289067 299306 299457 299457','0 199 6772 273984 299457',X'060902020403013406314D67456415B819');
+  INSERT INTO sqlite_stat4 VALUES('t1','ix','2677151 19313 19308 22 1','0 325815 325815 343725 343746','0 261 9545 315009 343746',X'060902080403018A49B0A3AD1ED931');
+  INSERT INTO sqlite_stat4 VALUES('t1','ix','2677151 25047 9051 15 1','0 350443 350443 356590 356604','0 266 9795 325519 356604',X'06090208040301914C2DD2E91F93CF');
+  INSERT INTO sqlite_stat4 VALUES('t1','ix','2677151 42327 9906 7 1','0 376381 376381 380291 380297','0 268 10100 344232 380297',X'06090208040301934BF672511F7ED3');
+  INSERT INTO sqlite_stat4 VALUES('t1','ix','2677151 24513 2237 1 1','0 455150 467779 470015 470015','0 286 10880 425401 470015',X'06090202040301A703464A28F2611EF1EE');
+  INSERT INTO sqlite_stat4 VALUES('t1','ix','2677151 18730 18724 15 1','0 479663 479663 498271 498285','0 287 10998 450793 498285',X'06090208040301A8494AF3A41EC50C');
+  INSERT INTO sqlite_stat4 VALUES('t1','ix','2677151 119603 47125 1 1','0 572425 572425 598915 598915','0 404 14230 546497 598915',X'06090208040302474FD1929A03194F');
+  INSERT INTO sqlite_stat4 VALUES('t1','ix','2677151 1454 1454 1 1','0 898346 898346 898373 898373','0 952 31165 827562 898373',X'06090208040304FD53F6A2A2097F64');
+  INSERT INTO sqlite_stat4 VALUES('t1','ix','2677151 57138 7069 1 1','0 1122389 1122389 1129457 1129457','0 1967 46801 1045943 1129457',X'06090208040309884BC4C52F1F6EB7');
+  INSERT INTO sqlite_stat4 VALUES('t1','ix','2677151 285 11 1 1','0 1197683 1197824 1197831 1197831','0 2033 50990 1112280 1197831',X'06090202040309D80346503FE2A9038E4F');
+  INSERT INTO sqlite_stat4 VALUES('t1','ix','2677151 25365 9773 1 1','0 1301013 1301013 1310785 1310785','0 2561 58806 1217877 1310785',X'0609020804030C5F4C8F88AB0AF2A2');
+  INSERT INTO sqlite_stat4 VALUES('t1','ix','2677151 45180 7222 1 1','0 1326378 1326378 1333599 1333599','0 2562 59921 1240187 1333599',X'0609020804030C604CAB75490B0351');
+  INSERT INTO sqlite_stat4 VALUES('t1','ix','2677151 8537 41 1 1','0 1496959 1497288 1497289 1497289','0 3050 68246 1394126 1497289',X'0609020204030EA0057F527459B0257C4B');
+  INSERT INTO sqlite_stat4 VALUES('t1','ix','2677151 26139 26131 17 1','0 1507977 1507977 1520578 1520594','0 3074 69188 1416111 1520594',X'0609020804030EB95169453423D4EA');
+  INSERT INTO sqlite_stat4 VALUES('t1','ix','2677151 102894 29678 1 1','0 1537421 1550467 1564894 1564894','0 3109 69669 1459820 1564894',X'0609020204030EE3183652A6ED3006EBCB');
+  INSERT INTO sqlite_stat4 VALUES('t1','ix','2677151 319 3 1 1','0 1796728 1796746 1796747 1796747','0 3650 86468 1682243 1796747',X'0609020204031163033550D0C41018C28D');
+  INSERT INTO sqlite_stat4 VALUES('t1','ix','2677151 127 127 1 1','0 2096194 2096194 2096205 2096205','0 5145 106437 1951535 2096205',X'060902080403180F53BB1AF727EE50');
+  INSERT INTO sqlite_stat4 VALUES('t1','ix','2677151 66574 5252 1 1','0 2230524 2265961 2271212 2271212','0 5899 114976 2085829 2271212',X'0609020204031B8A05195009976D223B90');
+  INSERT INTO sqlite_stat4 VALUES('t1','ix','2677151 19440 19440 1 1','0 2391680 2391680 2395663 2395663','0 6718 123714 2184781 2395663',X'0609020804031F7452E00A7B07431A');
+  INSERT INTO sqlite_stat4 VALUES('t1','ix','2677151 18321 2177 1 1','0 2522928 2523231 2525407 2525407','0 7838 139084 2299958 2525407',X'06090201040324A7475231103B1AA7B8');
+  INSERT INTO sqlite_stat4 VALUES('t1','ix','2677151 22384 1361 1 1','0 2541249 2544834 2546194 2546194','0 7839 139428 2308416 2546194',X'06090202040324A8011652323D4B1AA9EB');
+  INSERT INTO sqlite_stat4 VALUES('t1','ix','2677151 18699 855 1 1','0 2563633 2578178 2579032 2579032','0 7840 139947 2321671 2579032',X'06090202040324A9077452323D7D1052C5');
+  INSERT INTO sqlite_stat4 VALUES('t1','ix','17965 1579 1579 1 1','2677151 2690666 2690666 2692244 2692244','1 9870 153959 2418294 2692244',X'060102080403021B8A4FE1AB84032B35');
+  ANALYZE sqlite_master;
+} {}
+do_execsql_test 1.2 {
+  EXPLAIN QUERY PLAN
+  SELECT COUNT(*)
+    FROM t1
+   WHERE bb=21
+     AND aa=1
+     AND dd BETWEEN 1413833728 and 1413837331;
+} {/INDEX ix .aa=. AND bb=../}
+
+do_execsql_test 2.1 {
+  DROP INDEX ix;
+  CREATE INDEX good on t1(bb, aa, dd DESC);
+  CREATE INDEX bad on t1(aa, bb, cc,  dd DESC);
+  DELETE FROM sqlite_stat1;
+  DELETE FROM sqlite_stat4;
+  INSERT INTO sqlite_stat1 VALUES('t1','good','2695116 299 264 2');
+  INSERT INTO sqlite_stat1 VALUES('t1','bad','2695116 1347558 264 18 2');
+  INSERT INTO sqlite_stat4 VALUES('t1','good','197030 196859 32 1','15086 15086 92511 92536','19 25 81644 92536',X'05010904031552977BD725BD22');
+  INSERT INTO sqlite_stat4 VALUES('t1','good','14972 14687 1 1','289878 289878 299457 299457','199 244 267460 299457',X'050209040301344F7E569402C419');
+  INSERT INTO sqlite_stat4 VALUES('t1','good','19600 19313 22 1','327127 327127 346222 346243','261 319 306884 346243',X'0502090403018A49503BC01EC577');
+  INSERT INTO sqlite_stat4 VALUES('t1','good','25666 25047 15 1','352087 352087 372692 372706','266 327 325601 372706',X'050209040301914C2DD2E91F93CF');
+  INSERT INTO sqlite_stat4 VALUES('t1','good','42392 42327 26 1','378657 378657 382547 382572','268 331 333529 382572',X'05020904030193533B2FE326ED48');
+  INSERT INTO sqlite_stat4 VALUES('t1','good','24619 24513 11 1','457872 457872 461748 461758','286 358 399322 461758',X'050209040301A752B1557825EA7C');
+  INSERT INTO sqlite_stat4 VALUES('t1','good','18969 18730 15 1','482491 482491 501105 501119','287 360 433605 501119',X'050209040301A8494AF3A41EC50C');
+  INSERT INTO sqlite_stat4 VALUES('t1','good','119710 119603 1 1','576500 576500 598915 598915','404 505 519877 598915',X'05020904030247539A7A7912F617');
+  INSERT INTO sqlite_stat4 VALUES('t1','good','11955 11946 1 1','889796 889796 898373 898373','938 1123 794694 898373',X'050209040304EF4DF9C4150BBB28');
+  INSERT INTO sqlite_stat4 VALUES('t1','good','57197 57138 24 1','1129865 1129865 1151492 1151515','1967 2273 1027048 1151515',X'05020904030988533510BC26E20A');
+  INSERT INTO sqlite_stat4 VALUES('t1','good','3609 3543 1 1','1196265 1196265 1197831 1197831','2002 2313 1070108 1197831',X'050209040309B050E95CD718D94D');
+  INSERT INTO sqlite_stat4 VALUES('t1','good','25391 25365 13 1','1309378 1309378 1315567 1315579','2561 2936 1178358 1315579',X'05020904030C5F53DF9E13283570');
+  INSERT INTO sqlite_stat4 VALUES('t1','good','45232 45180 17 1','1334769 1334769 1337946 1337962','2562 2938 1198998 1337962',X'05020904030C60541CACEE28BCAC');
+  INSERT INTO sqlite_stat4 VALUES('t1','good','5496 5493 1 1','1495882 1495882 1497289 1497289','3043 3479 1348695 1497289',X'05020904030E99515C62AD0F0B34');
+  INSERT INTO sqlite_stat4 VALUES('t1','good','26348 26139 17 1','1517381 1517381 1529990 1530006','3074 3519 1378320 1530006',X'05020904030EB95169453423D4EA');
+  INSERT INTO sqlite_stat4 VALUES('t1','good','102927 102894 10 1','1547088 1547088 1649950 1649959','3109 3559 1494260 1649959',X'05020904030EE34D309F671FFA47');
+  INSERT INTO sqlite_stat4 VALUES('t1','good','3602 3576 1 1','1793873 1793873 1796747 1796747','3601 4128 1630783 1796747',X'050209040311294FE88B432219B9');
+  INSERT INTO sqlite_stat4 VALUES('t1','good','154 154 1 1','2096059 2096059 2096205 2096205','5037 5779 1893039 2096205',X'050209040317994EFF05A016DCED');
+  INSERT INTO sqlite_stat4 VALUES('t1','good','68153 66574 60 1','2244039 2244039 2268892 2268951','5899 6749 2027553 2268951',X'05020904031B8A532DBC5A26D2BA');
+  INSERT INTO sqlite_stat4 VALUES('t1','good','321 321 1 1','2395618 2395618 2395663 2395663','6609 7528 2118435 2395663',X'05020904031EFA54078EEE1E2D65');
+  INSERT INTO sqlite_stat4 VALUES('t1','good','19449 19440 22 1','2407769 2407769 2426049 2426070','6718 7651 2146904 2426070',X'05020904031F7450E6118C2336BD');
+  INSERT INTO sqlite_stat4 VALUES('t1','good','18383 18321 56 1','2539949 2539949 2551080 2551135','7838 8897 2245459 2551135',X'050209040324A752EA2E1E2642B2');
+  INSERT INTO sqlite_stat4 VALUES('t1','good','22479 22384 60 1','2558332 2558332 2565233 2565292','7839 8899 2251202 2565292',X'050209040324A853926538279A5F');
+  INSERT INTO sqlite_stat4 VALUES('t1','good','18771 18699 63 1','2580811 2580811 2596914 2596976','7840 8901 2263572 2596976',X'050209040324A9526C1DE9256E72');
+  INSERT INTO sqlite_stat4 VALUES('t1','bad','2677151 196859 196859 32 1','0 15043 15043 92468 92499','0 19 286 81846 92499',X'0609010804031552977BD725BD28');
+  INSERT INTO sqlite_stat4 VALUES('t1','bad','2677151 14687 161 1 1','0 289067 299306 299457 299457','0 199 6772 273984 299457',X'060902020403013406314D67456415B819');
+  INSERT INTO sqlite_stat4 VALUES('t1','bad','2677151 19313 19308 22 1','0 325815 325815 343725 343746','0 261 9545 315009 343746',X'060902080403018A49B0A3AD1ED931');
+  INSERT INTO sqlite_stat4 VALUES('t1','bad','2677151 25047 9051 15 1','0 350443 350443 356590 356604','0 266 9795 325519 356604',X'06090208040301914C2DD2E91F93CF');
+  INSERT INTO sqlite_stat4 VALUES('t1','bad','2677151 42327 9906 7 1','0 376381 376381 380291 380297','0 268 10100 344232 380297',X'06090208040301934BF672511F7ED3');
+  INSERT INTO sqlite_stat4 VALUES('t1','bad','2677151 24513 2237 1 1','0 455150 467779 470015 470015','0 286 10880 425401 470015',X'06090202040301A703464A28F2611EF1EE');
+  INSERT INTO sqlite_stat4 VALUES('t1','bad','2677151 18730 18724 15 1','0 479663 479663 498271 498285','0 287 10998 450793 498285',X'06090208040301A8494AF3A41EC50C');
+  INSERT INTO sqlite_stat4 VALUES('t1','bad','2677151 119603 47125 1 1','0 572425 572425 598915 598915','0 404 14230 546497 598915',X'06090208040302474FD1929A03194F');
+  INSERT INTO sqlite_stat4 VALUES('t1','bad','2677151 1454 1454 1 1','0 898346 898346 898373 898373','0 952 31165 827562 898373',X'06090208040304FD53F6A2A2097F64');
+  INSERT INTO sqlite_stat4 VALUES('t1','bad','2677151 57138 7069 1 1','0 1122389 1122389 1129457 1129457','0 1967 46801 1045943 1129457',X'06090208040309884BC4C52F1F6EB7');
+  INSERT INTO sqlite_stat4 VALUES('t1','bad','2677151 285 11 1 1','0 1197683 1197824 1197831 1197831','0 2033 50990 1112280 1197831',X'06090202040309D80346503FE2A9038E4F');
+  INSERT INTO sqlite_stat4 VALUES('t1','bad','2677151 25365 9773 1 1','0 1301013 1301013 1310785 1310785','0 2561 58806 1217877 1310785',X'0609020804030C5F4C8F88AB0AF2A2');
+  INSERT INTO sqlite_stat4 VALUES('t1','bad','2677151 45180 7222 1 1','0 1326378 1326378 1333599 1333599','0 2562 59921 1240187 1333599',X'0609020804030C604CAB75490B0351');
+  INSERT INTO sqlite_stat4 VALUES('t1','bad','2677151 8537 41 1 1','0 1496959 1497288 1497289 1497289','0 3050 68246 1394126 1497289',X'0609020204030EA0057F527459B0257C4B');
+  INSERT INTO sqlite_stat4 VALUES('t1','bad','2677151 26139 26131 17 1','0 1507977 1507977 1520578 1520594','0 3074 69188 1416111 1520594',X'0609020804030EB95169453423D4EA');
+  INSERT INTO sqlite_stat4 VALUES('t1','bad','2677151 102894 29678 1 1','0 1537421 1550467 1564894 1564894','0 3109 69669 1459820 1564894',X'0609020204030EE3183652A6ED3006EBCB');
+  INSERT INTO sqlite_stat4 VALUES('t1','bad','2677151 319 3 1 1','0 1796728 1796746 1796747 1796747','0 3650 86468 1682243 1796747',X'0609020204031163033550D0C41018C28D');
+  INSERT INTO sqlite_stat4 VALUES('t1','bad','2677151 127 127 1 1','0 2096194 2096194 2096205 2096205','0 5145 106437 1951535 2096205',X'060902080403180F53BB1AF727EE50');
+  INSERT INTO sqlite_stat4 VALUES('t1','bad','2677151 66574 5252 1 1','0 2230524 2265961 2271212 2271212','0 5899 114976 2085829 2271212',X'0609020204031B8A05195009976D223B90');
+  INSERT INTO sqlite_stat4 VALUES('t1','bad','2677151 19440 19440 1 1','0 2391680 2391680 2395663 2395663','0 6718 123714 2184781 2395663',X'0609020804031F7452E00A7B07431A');
+  INSERT INTO sqlite_stat4 VALUES('t1','bad','2677151 18321 2177 1 1','0 2522928 2523231 2525407 2525407','0 7838 139084 2299958 2525407',X'06090201040324A7475231103B1AA7B8');
+  INSERT INTO sqlite_stat4 VALUES('t1','bad','2677151 22384 1361 1 1','0 2541249 2544834 2546194 2546194','0 7839 139428 2308416 2546194',X'06090202040324A8011652323D4B1AA9EB');
+  INSERT INTO sqlite_stat4 VALUES('t1','bad','2677151 18699 855 1 1','0 2563633 2578178 2579032 2579032','0 7840 139947 2321671 2579032',X'06090202040324A9077452323D7D1052C5');
+  INSERT INTO sqlite_stat4 VALUES('t1','bad','17965 1579 1579 1 1','2677151 2690666 2690666 2692244 2692244','1 9870 153959 2418294 2692244',X'060102080403021B8A4FE1AB84032B35');
+  ANALYZE sqlite_master;
+} {}
+do_execsql_test 2.2 {
+  EXPLAIN QUERY PLAN
+  SELECT COUNT(*)
+    FROM t1
+   WHERE bb=21
+     AND aa=1
+     AND dd BETWEEN 1413833728 and 1413837331;
+} {/INDEX good .bb=. AND aa=. AND dd>. AND dd<../}
+
+
+# Create a table containing 100 rows. Column "a" contains a copy of the
+# rowid value - sequentially increasing integers from 1 to 100. Column
+# "b" contains the value of (a % 5). Columns "c" and "d" both contain
+# constant values (i.e. the same for every row).
+#
+# Then create a second table t2. t2 is the same as t3 except for the
+# order in which the indexes are created.
+#
+do_execsql_test 3.0 {
+  CREATE TABLE t3(a, b, c, d);
+  CREATE INDEX t3_ba ON t3(b, a, c);
+  CREATE INDEX t3_a ON t3(a);
+
+  WITH d(a, b) AS (
+    SELECT 1, 1 
+    UNION ALL
+    SELECT a+1, (a+1) % 5 FROM d WHERE a<100
+  )
+  INSERT INTO t3 SELECT a, b, 'c', 'd' FROM d;
+
+  CREATE TABLE t2(a, b, c, d);
+  CREATE INDEX t2_a ON t2(a);
+  CREATE INDEX t2_ba ON t2(b, a, c);
+  INSERT INTO t2 SELECT * FROM t3;
+
+  ANALYZE;
+  SELECT * FROM sqlite_stat1;
+} {
+  t2 t2_ba   {100 20 1 1}
+  t2 t2_a    {100 1} 
+  t3 t3_a    {100 1} 
+  t3 t3_ba   {100 20 1 1}
+}
+
+# Use index "t3_a", as (a=?) is expected to match only a single row.
+#
+do_eqp_test 3.1 {
+  SELECT * FROM t3 WHERE a = ? AND c = ?
+} {SEARCH t3 USING INDEX t3_a (a=?)}
+
+# The same query on table t2. This should use index "t2_a", for the
+# same reason. At one point though, it was mistakenly using a skip-scan.
+#
+do_eqp_test 3.2 {
+  SELECT * FROM t2 WHERE a = ? AND c = ?
+} {SEARCH t2 USING INDEX t2_a (a=?)}
+
+finish_test
diff --git a/test/snapshot.test b/test/snapshot.test
new file mode 100644
index 0000000000000000000000000000000000000000..75a8af214a587b7b0277730b613872921b30f145
--- /dev/null
+++ b/test/snapshot.test
@@ -0,0 +1,497 @@
+# 2015 December 7
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. The focus
+# of this file is the sqlite3_snapshot_xxx() APIs.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable !snapshot {finish_test; return}
+set testprefix snapshot
+
+# This test does not work with the inmemory_journal permutation. The reason
+# is that each connection opened as part of this permutation executes
+# "PRAGMA journal_mode=memory", which fails if the database is in wal mode
+# and there are one or more existing connections.
+if {[permutation]=="inmemory_journal"} {
+  finish_test
+  return
+}
+
+foreach {tn tcl} {
+  1 {
+    proc snapshot_get {DB DBNAME} {
+      uplevel [list sqlite3_snapshot_get $DB $DBNAME]
+    }
+    proc snapshot_open {DB DBNAME SNAPSHOT} {
+      uplevel [list sqlite3_snapshot_open $DB $DBNAME $SNAPSHOT]
+    }
+    proc snapshot_free {SNAPSHOT} {
+      uplevel [list sqlite3_snapshot_free $SNAPSHOT]
+    }
+    proc snapshot_cmp {SNAPSHOT1 SNAPSHOT2} {
+      uplevel [list sqlite3_snapshot_cmp $SNAPSHOT1 $SNAPSHOT2]
+    }
+  }
+
+  2 {
+    proc snapshot_get {DB DBNAME} {
+      uplevel [list sqlite3_snapshot_get_blob $DB $DBNAME]
+    }
+    proc snapshot_open {DB DBNAME SNAPSHOT} {
+      uplevel [list sqlite3_snapshot_open_blob $DB $DBNAME $SNAPSHOT]
+    }
+    proc snapshot_free {SNAPSHOT} {
+    }
+    proc snapshot_cmp {SNAPSHOT1 SNAPSHOT2} {
+      uplevel [list sqlite3_snapshot_cmp_blob $SNAPSHOT1 $SNAPSHOT2]
+    }
+  }
+} {
+
+  reset_db
+  eval $tcl
+
+  #-------------------------------------------------------------------------
+  # Check some error conditions in snapshot_get(). It is an error if:
+  #
+  #  1) snapshot_get() is called on a non-WAL database, or
+  #  2) there is an open write transaction on the database.
+  #  3) the database handle is in auto-commit mode
+  #
+  do_execsql_test $tn.1.0 {
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, 2);
+    INSERT INTO t1 VALUES(3, 4);
+  }
+
+  do_test $tn.1.1.1 {
+    execsql { BEGIN; SELECT * FROM t1; }
+    list [catch { snapshot_get db main } msg] $msg
+  } {1 SQLITE_ERROR}
+  do_execsql_test $tn.1.1.2 COMMIT
+
+  do_test $tn.1.2.1 {
+    execsql {
+      PRAGMA journal_mode = WAL;
+      BEGIN;
+        INSERT INTO t1 VALUES(5, 6);
+        INSERT INTO t1 VALUES(7, 8);
+    }
+    list [catch { snapshot_get db main } msg] $msg
+  } {1 SQLITE_ERROR}
+  do_execsql_test $tn.1.2.2 COMMIT
+
+  do_test $tn.1.3.1 {
+    list [catch { snapshot_get db main } msg] $msg
+  } {1 SQLITE_ERROR}
+  do_test $tn.1.3.2 {
+    db trans { set snap [snapshot_get db main] }
+    snapshot_free $snap
+  } {}
+
+  #-------------------------------------------------------------------------
+  # Check that a simple case works. Reuse the database created by the
+  # block of tests above.
+  #
+  do_execsql_test $tn.2.1.0 {
+    BEGIN;
+      SELECT * FROM t1;
+  } {1 2 3 4 5 6 7 8}
+
+  do_test $tn.2.1.1 {
+    set snapshot [snapshot_get db main]
+    execsql {
+      COMMIT;
+      INSERT INTO t1 VALUES(9, 10);
+      SELECT * FROM t1;
+    }
+  } {1 2 3 4 5 6 7 8 9 10}
+
+  do_test $tn.2.1.2 {
+    execsql BEGIN
+    snapshot_open db main $snapshot
+    execsql {
+      SELECT * FROM t1;
+    }
+  } {1 2 3 4 5 6 7 8}
+
+  do_test $tn.2.1.3 {
+    snapshot_free $snapshot
+    execsql COMMIT
+  } {}
+
+  do_test $tn.2.2.0 {
+    sqlite3 db2 test.db
+    execsql {
+      BEGIN;
+        SELECT * FROM t1;
+    } db2
+  } {1 2 3 4 5 6 7 8 9 10}
+
+  do_test $tn.2.2.1 {
+    set snapshot [snapshot_get db2 main]
+    execsql {
+      INSERT INTO t1 VALUES(11, 12);
+      SELECT * FROM t1;
+    }
+  } {1 2 3 4 5 6 7 8 9 10 11 12}
+
+  do_test $tn.2.2.2 {
+    execsql BEGIN
+    snapshot_open db main $snapshot
+    execsql {
+      SELECT * FROM t1;
+    }
+  } {1 2 3 4 5 6 7 8 9 10}
+
+  do_test $tn.2.2.3 {
+    snapshot_free $snapshot
+    execsql COMMIT
+    execsql COMMIT db2
+    db2 close
+  } {}
+
+  do_test $tn.2.3.1 {
+    execsql { DELETE FROM t1 WHERE a>6 }
+    db trans { set snapshot [snapshot_get db main] }
+    execsql {
+      INSERT INTO t1 VALUES('a', 'b');
+      INSERT INTO t1 VALUES('c', 'd');
+      SELECT * FROM t1;
+    }
+  } {1 2 3 4 5 6 a b c d}
+  do_test $tn.2.3.2 {
+    execsql BEGIN
+    snapshot_open db main $snapshot
+    execsql { SELECT * FROM t1 }
+  } {1 2 3 4 5 6}
+
+  do_test $tn.2.3.3 {
+    catchsql {
+      INSERT INTO t1 VALUES('x','y')
+    }
+  } {1 {database is locked}}
+  do_test $tn.2.3.4 {
+    execsql COMMIT
+    snapshot_free $snapshot
+  } {}
+
+  #-------------------------------------------------------------------------
+  # Check some errors in snapshot_open(). It is an error if:
+  #
+  #   1) the db is in auto-commit mode,
+  #   2) the db has an open (read or write) transaction,
+  #   3) the db is not a wal database,
+  #
+  # Reuse the database created by earlier tests.
+  #
+  do_execsql_test $tn.3.0.0 {
+    CREATE TABLE t2(x, y);
+    INSERT INTO t2 VALUES('a', 'b');
+    INSERT INTO t2 VALUES('c', 'd');
+    BEGIN;
+      SELECT * FROM t2;
+  } {a b c d}
+  do_test $tn.3.0.1 {
+    set snapshot [snapshot_get db main]
+    execsql { COMMIT }
+    execsql { INSERT INTO t2 VALUES('e', 'f'); }
+  } {}
+
+  do_test $tn.3.1 {
+    list [catch {snapshot_open db main $snapshot } msg] $msg
+  } {1 SQLITE_ERROR}
+
+  do_test $tn.3.2.1 {
+    execsql {
+      BEGIN;
+        SELECT * FROM t2;
+    }
+  } {a b c d e f}
+
+  # Update - it is no longer an error to have a read-transaction open, 
+  # provided there are no active SELECT statements.
+  do_test $tn.3.2.2a {
+    db eval "SELECT * FROM t2" {
+      set res [list [catch {snapshot_open db main $snapshot } msg] $msg]
+      break
+    }
+    set res
+  } {1 SQLITE_ERROR}
+  do_test $tn.3.2.2b {
+    snapshot_open db main $snapshot
+  } {}
+
+  do_test $tn.3.2.3 {
+    execsql {
+      COMMIT;
+      BEGIN;
+        INSERT INTO t2 VALUES('g', 'h');
+    }
+    list [catch {snapshot_open db main $snapshot } msg] $msg
+  } {1 SQLITE_ERROR}
+  do_execsql_test $tn.3.2.4 COMMIT
+
+  do_test $tn.3.3.1a {
+    execsql { PRAGMA journal_mode = DELETE }
+    execsql { BEGIN }
+    list [catch {snapshot_open db main $snapshot } msg] $msg
+  } {1 SQLITE_ERROR}
+
+  do_test $tn.3.3.1b {
+    execsql { COMMIT ; BEGIN ; SELECT * FROM t2 }
+    list [catch {snapshot_open db main $snapshot } msg] $msg
+  } {1 SQLITE_ERROR}
+
+  do_test $tn.$tn.3.3.2 {
+    snapshot_free $snapshot
+    execsql COMMIT
+  } {}
+
+  #-------------------------------------------------------------------------
+  # Check that SQLITE_ERROR_SNAPSHOT is returned if the specified snapshot
+  # no longer exists because the wal file has been checkpointed.
+  #
+  #   1. Reading a snapshot from the middle of a wal file is not possible
+  #      after the wal file has been checkpointed.
+  #
+  #   2. That a snapshot from the end of a wal file can not be read once
+  #      the wal file has been wrapped.
+  #
+  do_execsql_test $tn.4.1.0 {
+    PRAGMA journal_mode = wal;
+    CREATE TABLE t3(i, j);
+    INSERT INTO t3 VALUES('o', 't');
+    INSERT INTO t3 VALUES('t', 'f');
+    BEGIN;
+      SELECT * FROM t3;
+  } {wal o t t f}
+
+  do_test $tn.4.1.1 {
+    set snapshot [snapshot_get db main]
+    execsql COMMIT
+  } {}
+  do_test $tn.4.1.2 {
+    execsql { 
+      INSERT INTO t3 VALUES('f', 's'); 
+      BEGIN;
+    }
+    snapshot_open db main $snapshot
+    execsql { SELECT * FROM t3 }
+  } {o t t f}
+
+  do_test $tn.4.1.3 {
+    execsql { 
+      COMMIT;
+      PRAGMA wal_checkpoint;
+      BEGIN;
+    }
+    list [catch {snapshot_open db main $snapshot} msg] $msg
+  } {1 SQLITE_ERROR_SNAPSHOT}
+  do_test $tn.4.1.4 {
+    snapshot_free $snapshot
+    execsql COMMIT
+  } {}
+
+  do_test $tn.4.2.1 {
+    execsql {
+      INSERT INTO t3 VALUES('s', 'e');
+      INSERT INTO t3 VALUES('n', 't');
+      BEGIN;
+        SELECT * FROM t3;
+    }
+  } {o t t f f s s e n t}
+  do_test $tn.4.2.2 {
+    set snapshot [snapshot_get db main]
+    execsql {
+      COMMIT;
+      PRAGMA wal_checkpoint;
+      BEGIN;
+    }
+    snapshot_open db main $snapshot
+    execsql { SELECT * FROM t3 }
+  } {o t t f f s s e n t}
+  do_test $tn.4.2.3 {
+    execsql {
+      COMMIT;
+      INSERT INTO t3 VALUES('e', 't');
+      BEGIN;
+    }
+    list [catch {snapshot_open db main $snapshot} msg] $msg
+  } {1 SQLITE_ERROR_SNAPSHOT}
+  do_test $tn.4.2.4 {
+    snapshot_free $snapshot
+  } {}
+
+  #-------------------------------------------------------------------------
+  # Check that SQLITE_BUSY is returned if a checkpoint is running when
+  # sqlite3_snapshot_open() is called.
+  #
+  reset_db
+  db close
+  testvfs tvfs
+  sqlite3 db test.db -vfs tvfs
+
+  do_execsql_test $tn.5.1 {
+    PRAGMA journal_mode = wal;
+    CREATE TABLE x1(x, xx, xxx);
+    INSERT INTO x1 VALUES('z', 'zz', 'zzz');
+    BEGIN;
+      SELECT * FROM x1;
+  } {wal z zz zzz}
+
+  do_test $tn.5.2 {
+    set ::snapshot [snapshot_get db main]
+    sqlite3 db2 test.db -vfs tvfs
+    execsql {
+      INSERT INTO x1 VALUES('a', 'aa', 'aaa');
+      COMMIT;
+    }
+  } {}
+
+  set t53 0
+  proc write_callback {args} {
+    do_test $tn.5.3.[incr ::t53] {
+      execsql BEGIN
+      list [catch { snapshot_open db main $::snapshot } msg] $msg
+    } {1 SQLITE_BUSY}
+    catchsql COMMIT
+  }
+
+  tvfs filter xWrite
+  tvfs script write_callback
+  db2 eval { PRAGMA wal_checkpoint }
+  db close
+  db2 close
+  tvfs delete
+  snapshot_free $snapshot
+
+  #-------------------------------------------------------------------------
+  # Test that sqlite3_snapshot_get() may be called immediately after
+  # "BEGIN; PRAGMA user_version;". And that sqlite3_snapshot_open() may
+  # be called after opening the db handle and running the script
+  # "PRAGMA user_version; BEGIN".
+  reset_db
+  do_execsql_test $tn.6.1 {
+    PRAGMA journal_mode = wal;
+    CREATE TABLE x1(x, xx, xxx);
+    INSERT INTO x1 VALUES('z', 'zz', 'zzz');
+    BEGIN;
+      PRAGMA user_version;
+  } {wal 0}
+  do_test $tn.6.2 {
+    set ::snapshot [snapshot_get db main]
+    execsql {
+      INSERT INTO x1 VALUES('a', 'aa', 'aaa');
+      COMMIT;
+    }
+  } {}
+  do_test $tn.6.3 {
+    sqlite3 db2 test.db 
+    db2 eval "PRAGMA user_version ; BEGIN"
+    snapshot_open db2 main $::snapshot
+    db2 eval { SELECT * FROM x1 }
+  } {z zz zzz}
+  do_test $tn.6.4 {
+    db2 close
+    sqlite3 db2 test.db 
+    db2 eval "PRAGMA application_id"
+    db2 eval "BEGIN"
+    snapshot_open db2 main $::snapshot
+    db2 eval { SELECT * FROM x1 }
+  } {z zz zzz}
+
+  do_test $tn.6.5 {
+    db2 close
+    sqlite3 db2 test.db 
+    db2 eval "BEGIN"
+    list [catch {snapshot_open db2 main $::snapshot} msg] $msg
+  } {1 SQLITE_ERROR}
+
+  snapshot_free $snapshot
+
+  #-------------------------------------------------------------------------
+  # The following tests investigate the sqlite3_snapshot_cmp() API.
+  #
+
+  # Compare snapshots $p1 and $p2, checking that the result is $r.
+  #
+  proc do_snapshot_cmp_test {tn p1 p2 r} {
+    uplevel [list do_test $tn.1 [list snapshot_cmp $p1 $p2] $r]
+    uplevel [list do_test $tn.2 [list snapshot_cmp $p2 $p1] [expr $r*-1]]
+    uplevel [list do_test $tn.3 [list snapshot_cmp $p1 $p1] 0]
+    uplevel [list do_test $tn.4 [list snapshot_cmp $p2 $p2] 0]
+  }
+
+  catch { db2 close }
+  reset_db
+
+  do_execsql_test $tn.7.1 {
+    PRAGMA journal_mode = wal;
+    CREATE TABLE t1(x);
+  } wal
+
+  do_test $tn.7.1.2 {
+    execsql { BEGIN ; PRAGMA application_id }
+    set p1 [snapshot_get db main]
+    execsql {
+      INSERT INTO t1 VALUES(10);
+      COMMIT;
+    }
+    execsql { BEGIN ; PRAGMA application_id }
+    set p2 [snapshot_get db main]
+    execsql COMMIT
+  } {}
+
+  do_snapshot_cmp_test $tn.7.1.3 $p1 $p2 -1
+  snapshot_free $p1
+  snapshot_free $p2
+
+  do_execsql_test $tn.7.2.1 {
+    INSERT INTO t1 VALUES(11);
+    INSERT INTO t1 VALUES(12);
+    INSERT INTO t1 VALUES(13);
+    BEGIN; 
+      PRAGMA application_id;
+  } {0}
+  do_test $tn.7.2.2 {
+    set p1 [snapshot_get db main]
+    execsql {
+      COMMIT;
+      INSERT INTO t1 VALUES(14);
+      PRAGMA wal_checkpoint;
+      BEGIN;
+        PRAGMA application_id;
+    }
+    set p2 [snapshot_get db main]
+    execsql COMMIT
+  } {}
+
+  do_snapshot_cmp_test $tn.7.2.3 $p1 $p2 -1
+  snapshot_free $p2
+
+  do_test $tn.7.3.1 {
+    execsql {
+      INSERT INTO t1 VALUES(14);
+      BEGIN;
+        PRAGMA application_id;
+    }
+    set p2 [snapshot_get db main]
+    execsql COMMIT
+  } {}
+
+  do_snapshot_cmp_test $tn.7.3.2 $p1 $p2 -1
+  snapshot_free $p1
+  snapshot_free $p2
+}
+
+finish_test
diff --git a/test/snapshot2.test b/test/snapshot2.test
new file mode 100644
index 0000000000000000000000000000000000000000..0f4f177cb391ad71f367b9ec7d1a7f755005217a
--- /dev/null
+++ b/test/snapshot2.test
@@ -0,0 +1,240 @@
+# 2016 November 18
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. The focus
+# of this file is the sqlite3_snapshot_xxx() APIs.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable !snapshot {finish_test; return}
+set testprefix snapshot2
+
+# This test does not work with the inmemory_journal permutation. The reason
+# is that each connection opened as part of this permutation executes
+# "PRAGMA journal_mode=memory", which fails if the database is in wal mode
+# and there are one or more existing connections.
+if {[permutation]=="inmemory_journal"} {
+  finish_test
+  return
+}
+
+#-------------------------------------------------------------------------
+# Check that it is not possible to obtain a snapshot immediately after
+# a wal mode database with an empty wal file is opened. But it is after
+# the file has been written, even by some other connection.
+#
+do_execsql_test 1.0 {
+  PRAGMA journal_mode = wal;
+  CREATE TABLE t1(a, b, c);
+  INSERT INTO t1 VALUES(1, 2, 3);
+  INSERT INTO t1 VALUES(4, 5, 6);
+} {wal}
+
+db close
+do_test 1.1.1 { list [file exists test.db] [file exists test.db-wal] } {1 0}
+
+sqlite3 db test.db
+do_execsql_test 1.1.2 { SELECT * FROM t1 } {1 2 3 4 5 6}
+
+do_test 1.1.3 {
+  execsql BEGIN
+  list [catch { sqlite3_snapshot_get_blob db main } msg] $msg
+} {1 SQLITE_ERROR}
+execsql COMMIT
+
+do_test 1.1.4 {
+  execsql { INSERT INTO t1 VALUES(7, 8, 9) }
+  execsql BEGIN
+  string length [sqlite3_snapshot_get_blob db main]
+} 48
+execsql COMMIT
+
+db close
+do_test 1.2.1 { list [file exists test.db] [file exists test.db-wal] } {1 0}
+
+sqlite3 db test.db
+do_execsql_test 1.2.2 { SELECT * FROM t1 } {1 2 3 4 5 6 7 8 9}
+
+do_test 1.2.3 {
+  execsql BEGIN
+  list [catch { sqlite3_snapshot_get_blob db main } msg] $msg
+} {1 SQLITE_ERROR}
+execsql COMMIT
+
+do_test 1.2.4 {
+  sqlite3 db2 test.db
+  execsql { INSERT INTO t1 VALUES(10, 11, 12) } db2
+  execsql BEGIN
+  string length [sqlite3_snapshot_get_blob db main]
+} 48
+execsql COMMIT
+db2 close
+
+#-------------------------------------------------------------------------
+# Simple tests for sqlite3_snapshot_recover().
+#
+reset_db
+do_execsql_test 2.0 {
+  CREATE TABLE t1(x);
+  PRAGMA journal_mode = wal;
+  INSERT INTO t1 VALUES(1);
+  INSERT INTO t1 VALUES(2);
+} {wal}
+
+do_test 2.1 {
+  db trans { set snap [sqlite3_snapshot_get_blob db main] }
+  sqlite3_db_config db NO_CKPT_ON_CLOSE 1
+  db close
+  sqlite3 db test.db
+
+  execsql {SELECT * FROM sqlite_master}
+  execsql BEGIN
+  sqlite3_snapshot_open_blob db main $snap
+  execsql COMMIT;
+  execsql { INSERT INTO t1 VALUES(3); }
+} {}
+
+do_test 2.2 {
+  sqlite3_db_config db NO_CKPT_ON_CLOSE 1
+  db close
+  sqlite3 db test.db
+
+  execsql {SELECT * FROM sqlite_master}
+  execsql BEGIN
+  list [catch { sqlite3_snapshot_open_blob db main $snap } msg] $msg
+} {1 SQLITE_ERROR_SNAPSHOT}
+
+do_test 2.3 {
+  execsql COMMIT
+  sqlite3_snapshot_recover db main
+  execsql BEGIN
+  sqlite3_snapshot_open_blob db main $snap
+  execsql { SELECT * FROM t1 }
+} {1 2}
+
+do_test 2.4 {
+  execsql COMMIT
+  execsql { SELECT * FROM t1 }
+} {1 2 3}
+
+do_test 2.5 {
+  execsql { PRAGMA wal_checkpoint }
+  sqlite3_db_config db NO_CKPT_ON_CLOSE 1
+  db close
+  sqlite3 db test.db
+
+  sqlite3_snapshot_recover db main
+  execsql BEGIN
+  list [catch { sqlite3_snapshot_open_blob db main $snap } msg] $msg
+} {1 SQLITE_ERROR_SNAPSHOT}
+
+#-------------------------------------------------------------------------
+# Check that calling sqlite3_snapshot_recover() does not confuse the
+# pager cache.
+reset_db
+do_execsql_test 3.0 {
+  PRAGMA journal_mode = wal;
+  CREATE TABLE t1(x, y);
+  INSERT INTO t1 VALUES('a', 'b');
+  INSERT INTO t1 VALUES('c', 'd');
+} {wal}
+do_test 3.1 {
+  sqlite3 db2 test.db
+  execsql { INSERT INTO t1 VALUES('e', 'f') } db2
+  db2 close
+  sqlite3_snapshot_recover db main
+} {}
+do_execsql_test 3.2 {
+  SELECT * FROM t1;
+} {a b c d e f}
+
+#-------------------------------------------------------------------------
+# Check that sqlite3_snapshot_recover() returns an error if it is called
+# with an open read-transaction. Or on a database that does not exist. Or
+# on the temp database. Or on a db that is not in wal mode.
+#
+do_test 4.1 {
+  sqlite3_snapshot_recover db main
+} {}
+do_test 4.2 {
+  execsql {
+    BEGIN;
+      SELECT * FROM sqlite_master;
+  }
+  list [catch { sqlite3_snapshot_recover db main } msg] $msg
+} {1 SQLITE_ERROR}
+do_test 4.3 {
+  execsql COMMIT
+  sqlite3_snapshot_recover db main
+} {}
+do_test 4.4 {
+  list [catch { sqlite3_snapshot_recover db aux } msg] $msg
+} {1 SQLITE_ERROR}
+do_test 4.5 {
+  forcedelete test.db2
+  execsql {
+    ATTACH 'test.db2' AS aux;
+    PRAGMA aux.journal_mode = wal;
+    CREATE TABLE aux.t2(x, y);
+  }
+  list [catch { sqlite3_snapshot_recover db aux } msg] $msg
+} {0 {}}
+do_test 4.6 {
+  list [catch { sqlite3_snapshot_recover db temp } msg] $msg
+} {1 SQLITE_ERROR}
+do_test 4.7 {
+  execsql {
+    PRAGMA aux.journal_mode = delete;
+  }
+  list [catch { sqlite3_snapshot_recover db aux } msg] $msg
+} {1 SQLITE_ERROR}
+
+#-------------------------------------------------------------------------
+reset_db
+sqlite3 db2 test.db 
+do_execsql_test 5.0 {
+  CREATE TABLE t2(x);
+  PRAGMA journal_mode = wal;
+  INSERT INTO t2 VALUES('abc');
+  INSERT INTO t2 VALUES('def');
+  INSERT INTO t2 VALUES('ghi');
+} {wal}
+
+do_test 5.1 {
+  execsql { 
+    SELECT * FROM t2;
+    BEGIN;
+  } db2
+  set snap [sqlite3_snapshot_get_blob db2 main]
+  db2 eval END
+} {}
+
+do_test 5.2 {
+  execsql BEGIN db2
+  sqlite3_snapshot_open_blob db2 main $snap
+  db2 eval { SELECT * FROM t2 ; END }
+} {abc def ghi}
+
+do_test 5.3 {
+  execsql { PRAGMA wal_checkpoint = RESTART }
+  execsql BEGIN db2
+  sqlite3_snapshot_open_blob db2 main $snap
+  db2 eval { SELECT * FROM t2 ; END }
+} {abc def ghi}
+
+do_test 5.4 {
+  execsql { INSERT INTO t2 VALUES('jkl') } 
+  execsql BEGIN db2
+  list [catch { sqlite3_snapshot_open_blob db2 main $snap } msg] $msg
+} {1 SQLITE_ERROR_SNAPSHOT}
+
+
+finish_test
diff --git a/test/snapshot3.test b/test/snapshot3.test
new file mode 100644
index 0000000000000000000000000000000000000000..470d463a6618cd2bbc6c1448f34535fbf44f06a5
--- /dev/null
+++ b/test/snapshot3.test
@@ -0,0 +1,138 @@
+# 2016 September 23
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. The focus
+# of this file is the sqlite3_snapshot_xxx() APIs.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable !snapshot {finish_test; return}
+set testprefix snapshot3
+
+# This test does not work with the inmemory_journal permutation. The reason
+# is that each connection opened as part of this permutation executes
+# "PRAGMA journal_mode=memory", which fails if the database is in wal mode
+# and there are one or more existing connections.
+if {[permutation]=="inmemory_journal"} {
+  finish_test
+  return
+}
+
+#-------------------------------------------------------------------------
+# This block of tests verifies that it is not possible to wrap the wal
+# file - using a writer or a "PRAGMA wal_checkpoint = TRUNCATE" - while
+# there is an open snapshot transaction (transaction opened using
+# sqlite3_snapshot_open()).
+#
+do_execsql_test 1.0 {
+  CREATE TABLE t1(y);
+  PRAGMA journal_mode = wal;
+  INSERT INTO t1 VALUES(1);
+  INSERT INTO t1 VALUES(2);
+  INSERT INTO t1 VALUES(3);
+  INSERT INTO t1 VALUES(4);
+} {wal}
+
+do_test 1.1 {
+  sqlite3 db2 test.db
+  sqlite3 db3 test.db
+
+  execsql {SELECT * FROM sqlite_master} db2
+  execsql {SELECT * FROM sqlite_master} db3
+
+  db2 trans { set snap [sqlite3_snapshot_get_blob db2 main] }
+  db2 eval { SELECT * FROM t1 }
+} {1 2 3 4}
+
+do_test 1.2 {
+  execsql BEGIN db2
+  sqlite3_snapshot_open_blob db2 main $snap
+  db2 eval { SELECT * FROM t1 }
+} {1 2 3 4}
+
+do_test 1.2 {
+  execsql END db2
+  execsql { PRAGMA wal_checkpoint }
+
+  execsql BEGIN db2
+  sqlite3_snapshot_open_blob db2 main $snap
+  db2 eval { SELECT * FROM t1 }
+} {1 2 3 4}
+
+set sz [file size test.db-wal]
+do_test 1.3 {
+  execsql { PRAGMA wal_checkpoint = truncate }
+  file size test.db-wal
+} $sz
+
+do_test 1.4 {
+  execsql BEGIN db3
+  list [catch { sqlite3_snapshot_open_blob db3 main $snap } msg] $msg
+} {0 {}}
+
+do_test 1.5 {
+  db3 eval { SELECT * FROM t1; END }
+} {1 2 3 4}
+
+do_test 1.6 {
+  db2 eval { SELECT * FROM t1; END }
+} {1 2 3 4}
+
+do_test 1.7 {
+  execsql { PRAGMA wal_checkpoint = truncate }
+  file size test.db-wal
+} 0
+
+do_test 1.8 {
+  execsql BEGIN db3
+  list [catch { sqlite3_snapshot_open_blob db3 main $snap } msg] $msg
+} {1 SQLITE_ERROR_SNAPSHOT}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 2.0 {
+  PRAGMA journal_mode = wal;
+  CREATE TABLE t1(a, b);
+  INSERT INTO t1 VALUES(1, 2);
+  INSERT INTO t1 VALUES(3, 4);
+} {wal}
+
+sqlite3 db2 test.db
+sqlite3 db3 test.db
+do_execsql_test -db db2 2.0.1 {
+  SELECT * FROM t1
+} {1 2 3 4}
+do_execsql_test -db db3 2.0.2 {
+  SELECT * FROM t1
+} {1 2 3 4}
+
+do_execsql_test -db db2 2.2 {
+  PRAGMA wal_checkpoint;
+} {0 4 4}
+
+do_test 2.1 {
+  db eval { BEGIN }
+  set snap [sqlite3_snapshot_get db main]
+  set {} {}
+} {}
+
+do_execsql_test -db db2 2.3 {
+  INSERT INTO t1 VALUES(5, 6);
+} {}
+
+do_test 2.2 {
+  execsql { BEGIN } db3
+  sqlite3_snapshot_open db3 main $snap
+} {}
+
+sqlite3_snapshot_free $snap
+
+finish_test
diff --git a/test/snapshot4.test b/test/snapshot4.test
new file mode 100644
index 0000000000000000000000000000000000000000..ac7f6ad6c273544b23d9142a052cf58e8e1525dc
--- /dev/null
+++ b/test/snapshot4.test
@@ -0,0 +1,74 @@
+# 2018 August 28
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. The focus
+# of this file is the sqlite3_snapshot_xxx() APIs.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable !snapshot {finish_test; return}
+set testprefix snapshot4
+
+# This test does not work with the inmemory_journal permutation. The reason
+# is that each connection opened as part of this permutation executes
+# "PRAGMA journal_mode=memory", which fails if the database is in wal mode
+# and there are one or more existing connections.
+if {[permutation]=="inmemory_journal"} {
+  finish_test
+  return
+}
+
+sqlite3 db2 test.db
+
+do_execsql_test 1.0 {
+  PRAGMA cache_size = 10;
+  CREATE TABLE t1(a, b);
+  INSERT INTO t1 VALUES(1, randomblob(400));
+  PRAGMA journal_mode = wal;
+  WITH s(i) AS (
+    SELECT 2 UNION ALL SELECT i+1 FROM s WHERE i<100
+  ) 
+  INSERT INTO t1 SELECT i, randomblob(400) FROM s;
+} {wal}
+
+do_test 1.1 {
+  execsql {
+    BEGIN;
+      SELECT count(*) FROM t1;
+  }
+} {100}
+
+do_test 1.2 {
+  db2 eval { 
+    SELECT count(*) FROM t1;
+    CREATE TABLE t2(x); 
+  }
+} {100}
+
+do_test 1.3 {
+  set ::snap [sqlite3_snapshot_get_blob db main]
+  db2 eval { PRAGMA wal_checkpoint }
+} {0 54 52}
+
+do_test 1.4 {
+  execsql {
+    COMMIT;
+    SELECT * FROM sqlite_master;
+    BEGIN;
+  }
+  sqlite3_snapshot_open_blob db main $::snap
+  execsql {
+    SELECT count(*) FROM t1
+  } 
+} {100}
+
+
+finish_test
diff --git a/test/snapshot_fault.test b/test/snapshot_fault.test
new file mode 100644
index 0000000000000000000000000000000000000000..10c5094594494516ff88b4651e6f066fca378ad7
--- /dev/null
+++ b/test/snapshot_fault.test
@@ -0,0 +1,252 @@
+# 2015 December 10
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. The focus
+# of this file is the sqlite3_snapshot_xxx() APIs.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable !snapshot {finish_test; return}
+set testprefix snapshot_fault
+
+#-------------------------------------------------------------------------
+# Check that an sqlite3_snapshot_open() client cannot be tricked into
+# reading a corrupt snapshot even if a second client fails while 
+# checkpointing the db.
+#
+do_faultsim_test 1.0 -prep {
+  catch { db2 close }
+  faultsim_delete_and_reopen
+  sqlite3 db2 test.db
+  db2 eval { 
+    CREATE TABLE t1(a, b UNIQUE, c UNIQUE);
+    INSERT INTO t1 VALUES(1, randomblob(500), randomblob(500));
+    INSERT INTO t1 VALUES(2, randomblob(500), randomblob(500));
+    PRAGMA journal_mode = wal;
+    INSERT INTO t1 VALUES(3, randomblob(500), randomblob(500));
+    BEGIN;
+      SELECT a FROM t1;
+  }
+  set ::snapshot [sqlite3_snapshot_get db2 main] 
+  db2 eval COMMIT
+  db2 eval {
+    UPDATE t1 SET b=randomblob(501), c=randomblob(501) WHERE a=1;
+    INSERT INTO t1 VALUES(4, randomblob(500), randomblob(500));
+    INSERT INTO t1 VALUES(5, randomblob(500), randomblob(500));
+    INSERT INTO t1 VALUES(6, randomblob(500), randomblob(500));
+  }
+} -body {
+  db eval { PRAGMA wal_checkpoint }
+} -test {
+  db2 eval BEGIN
+  if {[catch { sqlite3_snapshot_open db2 main $::snapshot } msg]} {
+    if {$msg != "SQLITE_ERROR_SNAPSHOT" && $msg != "SQLITE_BUSY"} {
+      error "error is $msg" 
+    }
+  } else {
+    set res [db2 eval { 
+      SELECT a FROM t1;
+      PRAGMA integrity_check;
+    }]
+    if {$res != "1 2 3 ok"} { error "res is $res" }
+  }
+
+  sqlite3_snapshot_free $::snapshot
+}
+
+#-------------------------------------------------------------------------
+# This test is similar to the previous one. Except, after the 
+# "PRAGMA wal_checkpoint" command fails the db is closed and reopened
+# so as to require wal file recovery. It should not be possible to open
+# a snapshot that is part of the body of a recovered wal file.
+#
+do_faultsim_test 2.0 -prep {
+  faultsim_delete_and_reopen
+  db eval { 
+    CREATE TABLE t1(a, b UNIQUE, c UNIQUE);
+    INSERT INTO t1 VALUES(1, randomblob(500), randomblob(500));
+    INSERT INTO t1 VALUES(2, randomblob(500), randomblob(500));
+    PRAGMA journal_mode = wal;
+    INSERT INTO t1 VALUES(3, randomblob(500), randomblob(500));
+    BEGIN;
+      SELECT a FROM t1;
+  }
+  set ::snapshot [sqlite3_snapshot_get db main] 
+  db eval COMMIT
+
+  db eval {
+    UPDATE t1 SET b=randomblob(501), c=randomblob(501) WHERE a=1;
+    INSERT INTO t1 VALUES(4, randomblob(500), randomblob(500));
+    INSERT INTO t1 VALUES(5, randomblob(500), randomblob(500));
+    INSERT INTO t1 VALUES(6, randomblob(500), randomblob(500));
+  }
+} -body {
+  db eval { PRAGMA wal_checkpoint }
+} -test {
+
+  db_save
+  db close
+  db_restore_and_reopen
+  db eval { SELECT * FROM t1 }
+  
+  db eval BEGIN
+  if {[catch { sqlite3_snapshot_open db main $::snapshot } msg]} {
+    if {$msg != "SQLITE_ERROR_SNAPSHOT" && $msg != "SQLITE_BUSY"} {
+      error "error is $msg" 
+    }
+  } else {
+    # This branch should actually never be taken. But it was useful in
+    # determining whether or not this test was actually working (by 
+    # running a modified version of SQLite that allowed snapshots to be
+    # opened following a recovery).
+    error "TEST HAS FAILED"
+
+    set res [db eval { 
+      SELECT a FROM t1;
+      PRAGMA integrity_check;
+    }]
+    if {$res != "1 2 3 ok"} { error "res is $res" }
+  }
+
+  sqlite3_snapshot_free $::snapshot
+}
+
+#-------------------------------------------------------------------------
+# Test the handling of faults that occur within sqlite3_snapshot_open().
+#
+do_faultsim_test 3.0 -prep {
+  faultsim_delete_and_reopen
+  db eval { 
+    CREATE TABLE t1(a, b UNIQUE, c UNIQUE);
+    INSERT INTO t1 VALUES(1, randomblob(500), randomblob(500));
+    INSERT INTO t1 VALUES(2, randomblob(500), randomblob(500));
+    PRAGMA journal_mode = wal;
+    INSERT INTO t1 VALUES(3, randomblob(500), randomblob(500));
+    BEGIN;
+      SELECT a FROM t1;
+  }
+  set ::snapshot [sqlite3_snapshot_get db main] 
+  db eval COMMIT
+  db eval {
+    UPDATE t1 SET b=randomblob(501), c=randomblob(501) WHERE a=1;
+    INSERT INTO t1 VALUES(4, randomblob(500), randomblob(500));
+    INSERT INTO t1 VALUES(5, randomblob(500), randomblob(500));
+    INSERT INTO t1 VALUES(6, randomblob(500), randomblob(500));
+    BEGIN;
+  }
+} -body {
+  if { [catch { sqlite3_snapshot_open db main $::snapshot } msg] } {
+    error $msg
+  }
+} -test {
+  faultsim_test_result {0 {}} {1 SQLITE_IOERR} {1 SQLITE_NOMEM} \
+                              {1 SQLITE_IOERR_NOMEM} {1 SQLITE_IOERR_READ}
+  if {$testrc==0} {
+    set res [db eval { 
+      SELECT a FROM t1;
+      PRAGMA integrity_check;
+    }]
+    if {$res != "1 2 3 ok"} { error "res is $res" }
+  }
+
+  sqlite3_snapshot_free $::snapshot
+}
+
+#-------------------------------------------------------------------------
+# Test the handling of faults that occur within sqlite3_snapshot_recover().
+#
+reset_db
+do_execsql_test 4.0 {
+  PRAGMA journal_mode = wal;
+  CREATE TABLE t1(zzz);
+  INSERT INTO t1 VALUES('abc');
+  INSERT INTO t1 VALUES('def');
+} {wal}
+faultsim_save_and_close
+
+do_test 4.0.1 {
+  faultsim_restore_and_reopen
+  db eval { SELECT * FROM sqlite_master } 
+  sqlite3_snapshot_recover db main
+} {}
+db close
+
+do_faultsim_test 4.0 -faults oom* -prep {
+  faultsim_restore_and_reopen
+  db eval { SELECT * FROM sqlite_master } 
+} -body {
+  sqlite3_snapshot_recover db main
+} -test {
+  faultsim_test_result {0 {}} {1 SQLITE_NOMEM} {1 SQLITE_IOERR_NOMEM}
+}
+
+# The following test cases contrive to call sqlite3_snapshot_recover()
+# before all pages of the *-shm file have been mapped. This tests an
+# extra branch of error handling logic in snapshot_recover().
+#
+reset_db
+do_execsql_test 4.1.0 {
+  PRAGMA page_size = 512;
+  PRAGMA journal_mode = wal;
+  PRAGMA wal_autocheckpoint = 0;
+  CREATE TABLE t1(zzz);
+  INSERT INTO t1 VALUES(randomblob( 500 * 9500 ));
+  PRAGMA user_version = 211;
+} {wal 0}
+
+do_test 4.1.1 {
+  list [file size test.db-shm] [file size test.db]
+} {98304 512}
+
+faultsim_save_and_close
+do_faultsim_test 4.1 -faults shm* -prep {
+  catch { db2 close } 
+  catch { db close } 
+  faultsim_restore_and_reopen
+  sqlite3 db2 test.db
+  db2 eval { SELECT * FROM sqlite_master } 
+  db eval BEGIN
+  sqlite3_snapshot_get_blob db main
+  db eval COMMIT
+} -body {
+  sqlite3_snapshot_recover db main
+} -test {
+  faultsim_test_result {0 {}} {1 SQLITE_IOERR}
+}
+
+#-------------------------------------------------------------------------
+# Test the handling of faults that occur within sqlite3_snapshot_get().
+#
+reset_db
+do_execsql_test 5.0 {
+  PRAGMA page_size = 512;
+  PRAGMA journal_mode = wal;
+  PRAGMA wal_autocheckpoint = 0;
+  CREATE TABLE t1(zzz);
+  INSERT INTO t1 VALUES(randomblob( 5000 ));
+  PRAGMA user_version = 211;
+} {wal 0}
+faultsim_save_and_close
+
+do_faultsim_test 5 -prep {
+  faultsim_restore_and_reopen
+  execsql { SELECT count(*) FROM sqlite_master }
+  execsql BEGIN
+} -body {
+  sqlite3_snapshot_get_blob db main
+  set {} {}
+} -test {
+  execsql END
+  faultsim_test_result {0 {}} {1 SQLITE_IOERR} {1 SQLITE_NOMEM}
+}
+
+
+finish_test
diff --git a/test/snapshot_up.test b/test/snapshot_up.test
new file mode 100644
index 0000000000000000000000000000000000000000..5f389e7be5d053fb8eb5e3a06490ecf1a14a4ac6
--- /dev/null
+++ b/test/snapshot_up.test
@@ -0,0 +1,185 @@
+# 2018 August 6
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests for calling sqlite3_snapshot_open() when there is already
+# a read transaction open on the database.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable !snapshot {finish_test; return}
+set testprefix snapshot_up
+
+# This test does not work with the inmemory_journal permutation. The reason
+# is that each connection opened as part of this permutation executes
+# "PRAGMA journal_mode=memory", which fails if the database is in wal mode
+# and there are one or more existing connections.
+if {[permutation]=="inmemory_journal"} {
+  finish_test
+  return
+}
+
+db timeout 1000
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b, c);
+  PRAGMA journal_mode = wal;
+  INSERT INTO t1 VALUES(1, 2, 3);
+  INSERT INTO t1 VALUES(4, 5, 6);
+  INSERT INTO t1 VALUES(7, 8, 9);
+} {wal}
+
+do_test 1.1 {
+  execsql BEGIN
+  set ::snap1 [sqlite3_snapshot_get db main]
+  execsql COMMIT
+  execsql { INSERT INTO t1 VALUES(10, 11, 12); }
+  execsql BEGIN
+  set ::snap2 [sqlite3_snapshot_get db main]
+  execsql COMMIT
+  execsql { INSERT INTO t1 VALUES(13, 14, 15); }
+  execsql BEGIN
+  set ::snap3 [sqlite3_snapshot_get db main]
+  execsql COMMIT
+} {}
+
+do_execsql_test 1.2 {
+  BEGIN;
+    SELECT * FROM t1
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15}
+
+do_test 1.3 {
+  sqlite3_snapshot_open db main $::snap1
+  execsql { SELECT * FROM t1 }
+} {1 2 3 4 5 6 7 8 9}
+
+do_test 1.4 {
+  sqlite3_snapshot_open db main $::snap2
+  execsql { SELECT * FROM t1 }
+} {1 2 3 4 5 6 7 8 9 10 11 12}
+
+do_test 1.5 {
+  sqlite3 db2 test.db
+  execsql { PRAGMA wal_checkpoint } db2
+} {0 5 4}
+
+do_execsql_test 1.6 {
+  SELECT * FROM t1
+} {1 2 3 4 5 6 7 8 9 10 11 12}
+
+do_test 1.7 {
+  list [catch { sqlite3_snapshot_open db main $::snap1 } msg] $msg
+} {1 SQLITE_ERROR_SNAPSHOT}
+
+do_execsql_test 1.8 {
+  SELECT * FROM t1
+} {1 2 3 4 5 6 7 8 9 10 11 12}
+
+do_test 1.9 {
+  execsql { COMMIT ; BEGIN }
+  list [catch { sqlite3_snapshot_open db main $::snap1 } msg] $msg
+} {1 SQLITE_ERROR_SNAPSHOT}
+
+do_test 1.10 {
+  execsql { COMMIT }
+  execsql {
+    PRAGMA wal_checkpoint;
+    DELETE FROM t1 WHERE a = 1;
+  } db2
+  execsql BEGIN
+  set ::snap4 [sqlite3_snapshot_get db main]
+  execsql COMMIT
+  execsql {
+    DELETE FROM t1 WHERE a = 4;
+  } db2
+} {}
+
+do_test 1.11 {
+  execsql { 
+    BEGIN;
+      SELECT * FROM t1
+  }
+} {7 8 9 10 11 12 13 14 15}
+do_test 1.12 {
+  sqlite3_snapshot_open db main $::snap4
+  execsql { SELECT * FROM t1 }
+} {4 5 6 7 8 9 10 11 12 13 14 15}
+
+do_test 1.13 {
+  list [catch { sqlite3_snapshot_open db main $::snap3 } msg] $msg
+} {1 SQLITE_ERROR_SNAPSHOT}
+do_test 1.14 {
+  execsql { SELECT * FROM t1 }
+} {4 5 6 7 8 9 10 11 12 13 14 15}
+
+db close
+db2 close
+sqlite3 db test.db
+do_execsql_test 1.15 {
+  BEGIN;
+    SELECT * FROM t1
+} {7 8 9 10 11 12 13 14 15}
+do_test 1.16 {
+  list [catch { sqlite3_snapshot_open db main $::snap4 } msg] $msg
+} {1 SQLITE_ERROR_SNAPSHOT}
+do_execsql_test 1.17 { COMMIT }
+
+sqlite3_snapshot_free $::snap1
+sqlite3_snapshot_free $::snap2
+sqlite3_snapshot_free $::snap3
+sqlite3_snapshot_free $::snap4
+
+#-------------------------------------------------------------------------
+catch { db close }
+sqlite3 db test.db
+sqlite3 db2 test.db
+sqlite3 db3 test.db
+
+proc xBusy {args} { return 1 }
+db3 busy xBusy
+
+do_test 2.1 {
+  execsql { INSERT INTO t1 VALUES(16, 17, 18) } db2
+  execsql BEGIN
+  set ::snap1 [sqlite3_snapshot_get db main]
+  execsql COMMIT
+  execsql { INSERT INTO t1 VALUES(19, 20, 21) } db2
+  execsql BEGIN
+  set ::snap2 [sqlite3_snapshot_get db main]
+  execsql COMMIT
+  set {} {}
+} {}
+
+do_execsql_test -db db2 2.2 {
+  BEGIN;
+    INSERT INTO t1 VALUES(19, 20, 21);
+}
+
+do_test 2.3 {
+  execsql BEGIN
+  sqlite3_snapshot_open db main $::snap1
+  execsql { SELECT * FROM t1 }
+} {7 8 9 10 11 12 13 14 15 16 17 18}
+
+proc xBusy {args} { 
+  set ::res [list [catch { sqlite3_snapshot_open db main $::snap2 } msg] $msg]
+  return 1
+}
+db3 busy xBusy
+do_test 2.4 {
+  execsql {PRAGMA wal_checkpoint = restart} db3
+  set ::res
+} {1 SQLITE_BUSY}
+
+sqlite3_snapshot_free $::snap1
+sqlite3_snapshot_free $::snap2
+
+finish_test
diff --git a/test/soak.test b/test/soak.test
new file mode 100644
index 0000000000000000000000000000000000000000..e8535a1456b0c3ab3bfc3d7e9ae3335f5de434b0
--- /dev/null
+++ b/test/soak.test
@@ -0,0 +1,90 @@
+# 2007 May 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file is the driver for the "soak" tests. It is a peer of the
+# quick.test and all.test scripts.
+#
+# $Id: soak.test,v 1.4 2008/11/13 18:29:51 shane Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+rename finish_test really_finish_test
+proc finish_test {} {}
+
+# By default, guarantee that the tests will run for at least 1 hour.
+#
+set TIMEOUT 3600
+
+# Process command-line arguments. 
+#
+if {[llength $argv]>0} {
+  foreach {name value} $argv {
+    switch -- $name {
+      -timeout {
+        set TIMEOUT $value
+      }
+      default {
+         puts stderr "Unknown option: $name"
+         exit
+      }
+    }
+  }
+}
+set argv [list]
+
+# Test plan:
+#
+# The general principle is to run those SQLite tests that use
+# pseudo-random data in some way over and over again for a very 
+# long time. The number of tests run depends on the value of 
+# global variable $TIMEOUT - tests are run for at least $TIMEOUT 
+# seconds.
+#
+#   fuzz.test     (pseudo-random SQL statements)
+#   trans.test    (pseudo-random changes to a database followed by rollbacks)
+#   fuzz_malloc.test
+#   corruptC.test (pseudo-random corruption to a database)
+#
+# Many database changes maintaining some kind of invariant. 
+# Storing checksums etc.
+#
+
+# List of test files that are run by this file.
+#
+set SOAKTESTS {
+  fuzz.test
+  fuzz_malloc.test
+  trans.test
+  corruptC.test
+}
+
+set G(isquick) 1
+
+set soak_starttime  [clock_seconds]
+set soak_finishtime [expr {$soak_starttime + $TIMEOUT}]
+
+# Loop until the timeout is reached or an error occurs.
+#
+for {set iRun 0} {[clock_seconds] < $soak_finishtime} {incr iRun} {
+
+  set iIdx [expr {$iRun % [llength $SOAKTESTS]}]
+  source [file join $testdir [lindex $SOAKTESTS $iIdx]]
+  catch {db close}
+
+  if {$sqlite_open_file_count>0} {
+    puts "$tail did not close all files: $sqlite_open_file_count"
+    fail_test $tail
+    set sqlite_open_file_count 0
+  }
+
+  if {[set_test_counter errors]>0} break
+}
+
+really_finish_test
diff --git a/test/softheap1.test b/test/softheap1.test
new file mode 100644
index 0000000000000000000000000000000000000000..07f981e50a7108ca1a5d5f456cc92e9f16a70e3f
--- /dev/null
+++ b/test/softheap1.test
@@ -0,0 +1,74 @@
+# 2007 Aug 10
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+# This test script reproduces the problem reported by ticket #2565,
+# A database corruption bug that occurs in auto_vacuum mode when
+# the soft_heap_limit is set low enough to be triggered.
+#
+# $Id: softheap1.test,v 1.5 2008/07/08 17:13:59 danielk1977 Exp $
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !integrityck {
+  finish_test
+  return
+}
+
+# EVIDENCE-OF: R-26343-45930 This pragma invokes the
+# sqlite3_soft_heap_limit64() interface with the argument N, if N is
+# specified and is a non-negative integer.
+#
+# EVIDENCE-OF: R-64451-07163 The soft_heap_limit pragma always returns
+# the same integer that would be returned by the
+# sqlite3_soft_heap_limit64(-1) C-language function.
+#
+do_test softheap1-1.0 {
+  execsql {PRAGMA soft_heap_limit}
+} [sqlite3_soft_heap_limit -1]
+do_test softheap1-1.1 {
+  execsql {PRAGMA soft_heap_limit=123456; PRAGMA soft_heap_limit;}
+} {123456 123456}
+do_test softheap1-1.2 {
+  sqlite3_soft_heap_limit -1
+} {123456}
+do_test softheap1-1.3 {
+  execsql {PRAGMA soft_heap_limit(-1); PRAGMA soft_heap_limit;}
+} {123456 123456}
+do_test softheap1-1.4 {
+  execsql {PRAGMA soft_heap_limit(0); PRAGMA soft_heap_limit;}
+} {0 0}
+
+sqlite3_soft_heap_limit 5000
+do_test softheap1-2.0 {
+  execsql {PRAGMA soft_heap_limit}
+} {5000}
+do_test softheap1-2.1 {
+  execsql {
+    PRAGMA auto_vacuum=1;
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(hex(randomblob(1000)));
+    BEGIN;
+  }
+  execsql {
+    CREATE TABLE t2 AS SELECT * FROM t1;
+  }
+  execsql {
+    ROLLBACK;
+  }
+  execsql {
+    PRAGMA integrity_check;
+  }
+} {ok}
+
+sqlite3_soft_heap_limit $cmdlinearg(soft-heap-limit)
+finish_test
diff --git a/test/sort.test b/test/sort.test
new file mode 100644
index 0000000000000000000000000000000000000000..e6da6c6baf40df0e4e9f355c4be20625c5b79ce6
--- /dev/null
+++ b/test/sort.test
@@ -0,0 +1,630 @@
+# 2001 September 15.
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the sorter (code in vdbesort.c).
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix sort
+db close
+sqlite3_shutdown
+sqlite3_config_pmasz 10
+sqlite3_initialize
+sqlite3 db test.db
+
+# Create a bunch of data to sort against
+#
+do_test sort-1.0 {
+  execsql {
+    CREATE TABLE t1(
+       n int,
+       v varchar(10),
+       log int,
+       roman varchar(10),
+       flt real
+    );
+    INSERT INTO t1 VALUES(1,'one',0,'I',3.141592653);
+    INSERT INTO t1 VALUES(2,'two',1,'II',2.15);
+    INSERT INTO t1 VALUES(3,'three',1,'III',4221.0);
+    INSERT INTO t1 VALUES(4,'four',2,'IV',-0.0013442);
+    INSERT INTO t1 VALUES(5,'five',2,'V',-11);
+    INSERT INTO t1 VALUES(6,'six',2,'VI',0.123);
+    INSERT INTO t1 VALUES(7,'seven',2,'VII',123.0);
+    INSERT INTO t1 VALUES(8,'eight',3,'VIII',-1.6);
+  }
+  execsql {SELECT count(*) FROM t1}
+} {8}
+
+do_test sort-1.1 {
+  execsql {SELECT n FROM t1 ORDER BY n}
+} {1 2 3 4 5 6 7 8}
+do_test sort-1.1.1 {
+  execsql {SELECT n FROM t1 ORDER BY n ASC}
+} {1 2 3 4 5 6 7 8}
+do_test sort-1.1.1 {
+  execsql {SELECT ALL n FROM t1 ORDER BY n ASC}
+} {1 2 3 4 5 6 7 8}
+do_test sort-1.2 {
+  execsql {SELECT n FROM t1 ORDER BY n DESC}
+} {8 7 6 5 4 3 2 1}
+do_test sort-1.3a {
+  execsql {SELECT v FROM t1 ORDER BY v}
+} {eight five four one seven six three two}
+do_test sort-1.3b {
+  execsql {SELECT n FROM t1 ORDER BY v}
+} {8 5 4 1 7 6 3 2}
+do_test sort-1.4 {
+  execsql {SELECT n FROM t1 ORDER BY v DESC}
+} {2 3 6 7 1 4 5 8}
+do_test sort-1.5 {
+  execsql {SELECT flt FROM t1 ORDER BY flt}
+} {-11.0 -1.6 -0.0013442 0.123 2.15 3.141592653 123.0 4221.0}
+do_test sort-1.6 {
+  execsql {SELECT flt FROM t1 ORDER BY flt DESC}
+} {4221.0 123.0 3.141592653 2.15 0.123 -0.0013442 -1.6 -11.0}
+do_test sort-1.7 {
+  execsql {SELECT roman FROM t1 ORDER BY roman}
+} {I II III IV V VI VII VIII}
+do_test sort-1.8 {
+  execsql {SELECT n FROM t1 ORDER BY log, flt}
+} {1 2 3 5 4 6 7 8}
+do_test sort-1.8.1 {
+  execsql {SELECT n FROM t1 ORDER BY log asc, flt}
+} {1 2 3 5 4 6 7 8}
+do_test sort-1.8.2 {
+  execsql {SELECT n FROM t1 ORDER BY log, flt ASC}
+} {1 2 3 5 4 6 7 8}
+do_test sort-1.8.3 {
+  execsql {SELECT n FROM t1 ORDER BY log ASC, flt asc}
+} {1 2 3 5 4 6 7 8}
+do_test sort-1.9 {
+  execsql {SELECT n FROM t1 ORDER BY log, flt DESC}
+} {1 3 2 7 6 4 5 8}
+do_test sort-1.9.1 {
+  execsql {SELECT n FROM t1 ORDER BY log ASC, flt DESC}
+} {1 3 2 7 6 4 5 8}
+do_test sort-1.10 {
+  execsql {SELECT n FROM t1 ORDER BY log DESC, flt}
+} {8 5 4 6 7 2 3 1}
+do_test sort-1.11 {
+  execsql {SELECT n FROM t1 ORDER BY log DESC, flt DESC}
+} {8 7 6 4 5 3 2 1}
+
+# These tests are designed to reach some hard-to-reach places
+# inside the string comparison routines.
+#
+# (Later) The sorting behavior changed in 2.7.0.  But we will
+# keep these tests.  You can never have too many test cases!
+#
+do_test sort-2.1.1 {
+  execsql {
+    UPDATE t1 SET v='x' || -flt;
+    UPDATE t1 SET v='x-2b' where v=='x-0.123';
+    SELECT v FROM t1 ORDER BY v;
+  }
+} {x-123.0 x-2.15 x-2b x-3.141592653 x-4221.0 x0.0013442 x1.6 x11.0}
+do_test sort-2.1.2 {
+  execsql {
+    SELECT v FROM t1 ORDER BY substr(v,2,999);
+  }
+} {x-123.0 x-2.15 x-2b x-3.141592653 x-4221.0 x0.0013442 x1.6 x11.0}
+do_test sort-2.1.3 {
+  execsql {
+    SELECT v FROM t1 ORDER BY substr(v,2,999)+0.0;
+  }
+} {x-4221.0 x-123.0 x-3.141592653 x-2.15 x-2b x0.0013442 x1.6 x11.0}
+do_test sort-2.1.4 {
+  execsql {
+    SELECT v FROM t1 ORDER BY substr(v,2,999) DESC;
+  }
+} {x11.0 x1.6 x0.0013442 x-4221.0 x-3.141592653 x-2b x-2.15 x-123.0}
+do_test sort-2.1.5 {
+  execsql {
+    SELECT v FROM t1 ORDER BY substr(v,2,999)+0.0 DESC;
+  }
+} {x11.0 x1.6 x0.0013442 x-2b x-2.15 x-3.141592653 x-123.0 x-4221.0}
+
+# This is a bug fix for 2.2.4.
+# Strings are normally mapped to upper-case for a caseless comparison.
+# But this can cause problems for characters in between 'Z' and 'a'.
+#
+do_test sort-3.1 {
+  execsql {
+    CREATE TABLE t2(a,b);
+    INSERT INTO t2 VALUES('AGLIENTU',1);
+    INSERT INTO t2 VALUES('AGLIE`',2);
+    INSERT INTO t2 VALUES('AGNA',3);
+    SELECT a, b FROM t2 ORDER BY a;
+  }
+} {AGLIENTU 1 AGLIE` 2 AGNA 3}
+do_test sort-3.2 {
+  execsql {
+    SELECT a, b FROM t2 ORDER BY a DESC;
+  }
+} {AGNA 3 AGLIE` 2 AGLIENTU 1}
+do_test sort-3.3 {
+  execsql {
+    DELETE FROM t2;
+    INSERT INTO t2 VALUES('aglientu',1);
+    INSERT INTO t2 VALUES('aglie`',2);
+    INSERT INTO t2 VALUES('agna',3);
+    SELECT a, b FROM t2 ORDER BY a;
+  }
+} {aglie` 2 aglientu 1 agna 3}
+do_test sort-3.4 {
+  execsql {
+    SELECT a, b FROM t2 ORDER BY a DESC;
+  }
+} {agna 3 aglientu 1 aglie` 2}
+
+# Version 2.7.0 testing.
+#
+do_test sort-4.1 {
+  execsql {
+    INSERT INTO t1 VALUES(9,'x2.7',3,'IX',4.0e5);
+    INSERT INTO t1 VALUES(10,'x5.0e10',3,'X',-4.0e5);
+    INSERT INTO t1 VALUES(11,'x-4.0e9',3,'XI',4.1e4);
+    INSERT INTO t1 VALUES(12,'x01234567890123456789',3,'XII',-4.2e3);
+    SELECT n FROM t1 ORDER BY n;
+  }
+} {1 2 3 4 5 6 7 8 9 10 11 12}
+do_test sort-4.2 {
+  execsql {
+    SELECT n||'' FROM t1 ORDER BY 1;
+  }
+} {1 10 11 12 2 3 4 5 6 7 8 9}
+do_test sort-4.3 {
+  execsql {
+    SELECT n+0 FROM t1 ORDER BY 1;
+  }
+} {1 2 3 4 5 6 7 8 9 10 11 12}
+do_test sort-4.4 {
+  execsql {
+    SELECT n||'' FROM t1 ORDER BY 1 DESC;
+  }
+} {9 8 7 6 5 4 3 2 12 11 10 1}
+do_test sort-4.5 {
+  execsql {
+    SELECT n+0 FROM t1 ORDER BY 1 DESC;
+  }
+} {12 11 10 9 8 7 6 5 4 3 2 1}
+do_test sort-4.6 {
+  execsql {
+    SELECT v FROM t1 ORDER BY 1;
+  }
+} {x-123.0 x-2.15 x-2b x-3.141592653 x-4.0e9 x-4221.0 x0.0013442 x01234567890123456789 x1.6 x11.0 x2.7 x5.0e10}
+do_test sort-4.7 {
+  execsql {
+    SELECT v FROM t1 ORDER BY 1 DESC;
+  }
+} {x5.0e10 x2.7 x11.0 x1.6 x01234567890123456789 x0.0013442 x-4221.0 x-4.0e9 x-3.141592653 x-2b x-2.15 x-123.0}
+do_test sort-4.8 {
+  execsql {
+    SELECT substr(v,2,99) FROM t1 ORDER BY 1;
+  }
+} {-123.0 -2.15 -2b -3.141592653 -4.0e9 -4221.0 0.0013442 01234567890123456789 1.6 11.0 2.7 5.0e10}
+#do_test sort-4.9 {
+#  execsql {
+#    SELECT substr(v,2,99)+0.0 FROM t1 ORDER BY 1;
+#  }
+#} {-4000000000 -4221 -123 -3.141592653 -2.15 -2 0.0013442 1.6 2.7 11 50000000000 1.23456789012346e+18}
+
+do_test sort-5.1 {
+  execsql {
+    create table t3(a,b);
+    insert into t3 values(5,NULL);
+    insert into t3 values(6,NULL);
+    insert into t3 values(3,NULL);
+    insert into t3 values(4,'cd');
+    insert into t3 values(1,'ab');
+    insert into t3 values(2,NULL);
+    select a from t3 order by b, a;
+  }
+} {2 3 5 6 1 4}
+do_test sort-5.2 {
+  execsql {
+    select a from t3 order by b, a desc;
+  }
+} {6 5 3 2 1 4}
+do_test sort-5.3 {
+  execsql {
+    select a from t3 order by b desc, a;
+  }
+} {4 1 2 3 5 6}
+do_test sort-5.4 {
+  execsql {
+    select a from t3 order by b desc, a desc;
+  }
+} {4 1 6 5 3 2}
+
+do_test sort-6.1 {
+  execsql {
+    create index i3 on t3(b,a);
+    select a from t3 order by b, a;
+  }
+} {2 3 5 6 1 4}
+do_test sort-6.2 {
+  execsql {
+    select a from t3 order by b, a desc;
+  }
+} {6 5 3 2 1 4}
+do_test sort-6.3 {
+  execsql {
+    select a from t3 order by b desc, a;
+  }
+} {4 1 2 3 5 6}
+do_test sort-6.4 {
+  execsql {
+    select a from t3 order by b desc, a desc;
+  }
+} {4 1 6 5 3 2}
+
+do_test sort-7.1 {
+  execsql {
+    CREATE TABLE t4(
+      a INTEGER,
+      b VARCHAR(30)
+    );
+    INSERT INTO t4 VALUES(1,1);
+    INSERT INTO t4 VALUES(2,2);
+    INSERT INTO t4 VALUES(11,11);
+    INSERT INTO t4 VALUES(12,12);
+    SELECT a FROM t4 ORDER BY 1;
+  }
+} {1 2 11 12}
+do_test sort-7.2 {
+  execsql {
+    SELECT b FROM t4 ORDER BY 1
+  }
+} {1 11 12 2}
+
+# Omit tests sort-7.3 to sort-7.8 if view support was disabled at
+# compilatation time.
+ifcapable view {
+do_test sort-7.3 {
+  execsql {
+    CREATE VIEW v4 AS SELECT * FROM t4;
+    SELECT a FROM v4 ORDER BY 1;
+  }
+} {1 2 11 12}
+do_test sort-7.4 {
+  execsql {
+    SELECT b FROM v4 ORDER BY 1;
+  }
+} {1 11 12 2}
+
+ifcapable compound {
+do_test sort-7.5 {
+  execsql {
+    SELECT a FROM t4 UNION SELECT a FROM v4 ORDER BY 1;
+  }
+} {1 2 11 12}
+do_test sort-7.6 {
+  execsql {
+    SELECT b FROM t4 UNION SELECT a FROM v4 ORDER BY 1;
+  }
+} {1 2 11 12 1 11 12 2}  ;# text from t4.b and numeric from v4.a
+do_test sort-7.7 {
+  execsql {
+    SELECT a FROM t4 UNION SELECT b FROM v4 ORDER BY 1;
+  }
+} {1 2 11 12 1 11 12 2} ;# numeric from t4.a and text from v4.b
+do_test sort-7.8 {
+  execsql {
+    SELECT b FROM t4 UNION SELECT b FROM v4 ORDER BY 1;
+  }
+} {1 11 12 2}
+} ;# ifcapable compound
+} ;# ifcapable view
+
+#### Version 3 works differently here:
+#do_test sort-7.9 {
+#  execsql {
+#    SELECT b FROM t4 UNION SELECT b FROM v4 ORDER BY 1 COLLATE numeric;
+#  }
+#} {1 2 11 12}
+#do_test sort-7.10 {
+#  execsql {
+#    SELECT b FROM t4 UNION SELECT b FROM v4 ORDER BY 1 COLLATE integer;
+#  }
+#} {1 2 11 12}
+#do_test sort-7.11 {
+#  execsql {
+#    SELECT b FROM t4 UNION SELECT b FROM v4 ORDER BY 1 COLLATE text;
+#  }
+#} {1 11 12 2}
+#do_test sort-7.12 {
+#  execsql {
+#    SELECT b FROM t4 UNION SELECT b FROM v4 ORDER BY 1 COLLATE blob;
+#  }
+#} {1 11 12 2}
+#do_test sort-7.13 {
+#  execsql {
+#    SELECT b FROM t4 UNION SELECT b FROM v4 ORDER BY 1 COLLATE clob;
+#  }
+#} {1 11 12 2}
+#do_test sort-7.14 {
+#  execsql {
+#    SELECT b FROM t4 UNION SELECT b FROM v4 ORDER BY 1 COLLATE varchar;
+#  }
+#} {1 11 12 2}
+
+# Ticket #297
+#
+do_test sort-8.1 {
+  execsql {
+    CREATE TABLE t5(a real, b text);
+    INSERT INTO t5 VALUES(100,'A1');
+    INSERT INTO t5 VALUES(100.0,'A2');
+    SELECT * FROM t5 ORDER BY a, b;
+  }
+} {100.0 A1 100.0 A2}
+
+
+ifcapable {bloblit} {
+# BLOBs should sort after TEXT
+#
+do_test sort-9.1 {
+  execsql {
+    CREATE TABLE t6(x, y);
+    INSERT INTO t6 VALUES(1,1);
+    INSERT INTO t6 VALUES(2,'1');
+    INSERT INTO t6 VALUES(3,x'31');
+    INSERT INTO t6 VALUES(4,NULL);
+    SELECT x FROM t6 ORDER BY y;
+  }
+} {4 1 2 3}
+do_test sort-9.2 {
+  execsql {
+    SELECT x FROM t6 ORDER BY y DESC;
+  }
+} {3 2 1 4}
+do_test sort-9.3 {
+  execsql {
+    SELECT x FROM t6 WHERE y<1
+  }
+} {}
+do_test sort-9.4 {
+  execsql {
+    SELECT x FROM t6 WHERE y<'1'
+  }
+} {1}
+do_test sort-9.5 {
+  execsql {
+    SELECT x FROM t6 WHERE y<x'31'
+  }
+} {1 2}
+do_test sort-9.6 {
+  execsql {
+    SELECT x FROM t6 WHERE y>1
+  }
+} {2 3}
+do_test sort-9.7 {
+  execsql {
+    SELECT x FROM t6 WHERE y>'1'
+  }
+} {3}
+} ;# endif bloblit
+
+# Ticket #1092 - ORDER BY on rowid fields.
+do_test sort-10.1 {
+  execsql {
+    CREATE TABLE t7(c INTEGER PRIMARY KEY);
+    INSERT INTO t7 VALUES(1);
+    INSERT INTO t7 VALUES(2);
+    INSERT INTO t7 VALUES(3);
+    INSERT INTO t7 VALUES(4);
+  }
+} {}
+do_test sort-10.2 {
+  execsql {
+    SELECT c FROM t7 WHERE c<=3 ORDER BY c DESC;
+  }
+} {3 2 1}
+do_test sort-10.3 {
+  execsql {
+    SELECT c FROM t7 WHERE c<3 ORDER BY c DESC;
+  }
+} {2 1}
+
+# ticket #1358.  Just because one table in a join gives a unique
+# result does not mean they all do.  We cannot disable sorting unless
+# all tables in the join give unique results.
+#
+do_test sort-11.1 {
+  execsql {
+    create table t8(a unique, b, c);
+    insert into t8 values(1,2,3);
+    insert into t8 values(2,3,4);
+    create table t9(x,y);
+    insert into t9 values(2,4);
+    insert into t9 values(2,3);
+    select y from t8, t9 where a=1 order by a, y;
+  }
+} {3 4}
+
+# Trouble reported on the mailing list.  Check for overly aggressive
+# (which is to say, incorrect) optimization of order-by with a rowid
+# in a join.
+#
+do_test sort-12.1 {
+  execsql {
+    create table a (id integer primary key);
+    create table b (id integer primary key, aId integer, text);
+    insert into a values (1);
+    insert into b values (2, 1, 'xxx');
+    insert into b values (1, 1, 'zzz');
+    insert into b values (3, 1, 'yyy');
+    select a.id, b.id, b.text from a join b on (a.id = b.aId)
+      order by a.id, b.text;
+  }
+} {1 2 xxx 1 3 yyy 1 1 zzz}
+
+#-------------------------------------------------------------------------
+# Check that the sorter in vdbesort.c sorts in a stable fashion.
+#
+do_execsql_test sort-13.0 {
+  CREATE TABLE t10(a, b);
+}
+do_test sort-13.1 {
+  db transaction {
+    for {set i 0} {$i < 100000} {incr i} {
+      execsql { INSERT INTO t10 VALUES( $i/10, $i%10 ) }
+    }
+  }
+} {}
+do_execsql_test sort-13.2 {
+  SELECT a, b FROM t10 ORDER BY a;
+} [db eval {SELECT a, b FROM t10 ORDER BY a, b}]
+do_execsql_test sort-13.3 {
+  PRAGMA cache_size = 5;
+  SELECT a, b FROM t10 ORDER BY a;
+} [db eval {SELECT a, b FROM t10 ORDER BY a, b}]
+
+#-------------------------------------------------------------------------
+#
+foreach {tn mmap_limit nWorker tmpstore coremutex fakeheap softheaplimit} {
+          1          0       3     file      true    false             0
+          2          0       3     file      true     true             0
+          3          0       0     file      true    false             0
+          4    1000000       3     file      true    false             0
+          5          0       0   memory     false     true             0
+          6          0       0     file     false     true       1000000     
+          7          0       0     file     false     true         10000
+} {
+  db close
+  sqlite3_shutdown
+  if {$coremutex} {
+    sqlite3_config multithread
+  } else {
+    sqlite3_config singlethread
+  }
+  sqlite3_initialize
+  sorter_test_fakeheap $fakeheap
+  sqlite3_soft_heap_limit $softheaplimit
+
+  reset_db
+  sqlite3_test_control SQLITE_TESTCTRL_SORTER_MMAP db $mmap_limit
+  execsql "PRAGMA temp_store = $tmpstore; PRAGMA threads = $nWorker"
+  
+  
+  set ten [string repeat X 10300]
+  set one [string repeat y   200]
+
+  if {$softheaplimit} {
+    execsql { PRAGMA cache_size = 20 };
+  } else {
+    execsql { PRAGMA cache_size = 5 };
+  }
+
+  do_execsql_test 15.$tn.1 {
+    WITH rr AS (
+      SELECT 4, $ten UNION ALL
+      SELECT 2, $one UNION ALL
+      SELECT 1, $ten UNION ALL
+      SELECT 3, $one
+    )
+    SELECT * FROM rr ORDER BY 1;
+  } [list 1 $ten 2 $one 3 $one 4 $ten]
+
+  do_execsql_test 15.$tn.2 {
+    CREATE TABLE t1(a);
+    INSERT INTO t1 VALUES(4);
+    INSERT INTO t1 VALUES(5);
+    INSERT INTO t1 VALUES(3);
+    INSERT INTO t1 VALUES(2);
+    INSERT INTO t1 VALUES(6);
+    INSERT INTO t1 VALUES(1);
+    CREATE INDEX i1 ON t1(a);
+    SELECT * FROM t1 ORDER BY a;
+  } {1 2 3 4 5 6}
+
+  do_execsql_test 15.$tn.3 {
+    WITH rr AS (
+      SELECT 4, $ten UNION ALL
+      SELECT 2, $one
+    )
+    SELECT * FROM rr ORDER BY 1;
+  } [list 2 $one 4 $ten]
+
+  sorter_test_fakeheap 0
+}
+
+db close
+sqlite3_shutdown
+set t(0) singlethread
+set t(1) multithread
+set t(2) serialized
+sqlite3_config $t($sqlite_options(threadsafe))
+sqlite3_initialize
+sqlite3_soft_heap_limit 0
+
+reset_db
+do_catchsql_test 16.1 {
+  CREATE TABLE t1(a, b, c);
+  INSERT INTO t1 VALUES(1, 2, 3);
+  INSERT INTO t1 VALUES(1, NULL, 3);
+  INSERT INTO t1 VALUES(NULL, 2, 3);
+  INSERT INTO t1 VALUES(1, 2, NULL);
+  INSERT INTO t1 VALUES(4, 5, 6);
+  CREATE UNIQUE INDEX i1 ON t1(b, a, c);
+} {0 {}}
+reset_db
+do_catchsql_test 16.2 {
+  CREATE TABLE t1(a, b, c);
+  INSERT INTO t1 VALUES(1, 2, 3);
+  INSERT INTO t1 VALUES(1, NULL, 3);
+  INSERT INTO t1 VALUES(1, 2, 3);
+  INSERT INTO t1 VALUES(1, 2, NULL);
+  INSERT INTO t1 VALUES(4, 5, 6);
+  CREATE UNIQUE INDEX i1 ON t1(b, a, c);
+} {1 {UNIQUE constraint failed: t1.b, t1.a, t1.c}}
+
+reset_db
+do_execsql_test 17.1 {
+  SELECT * FROM sqlite_master ORDER BY sql;
+} {}
+
+# 2022-12-03 Ticket e8b674241947eb3b
+# Improve estimates for the cost of sorting relative
+# to the cost of doing an index lookup, so as to get
+# a better query plan.  See the ticket for a deetailed
+# example.
+#
+reset_db
+do_execsql_test 18.1 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<50)
+                           -- increase to 5000 for actual test data ----^^
+    INSERT INTO t1(a,b,c) SELECT x, random()%5000, random()%5000 FROM c;
+  CREATE TABLE t2(d,e,f);
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<500)
+                         -- increase to 50000 for actual test data -----^^^
+    INSERT INTO t2(d,e,f) SELECT
+       NULLIF(0, random()%2), random()%5000, random()%5000
+       FROM c;
+  ANALYZE;
+  UPDATE sqlite_stat1 SET stat='50000' WHERE tbl='t2';
+  UPDATE sqlite_stat1 SET stat='5000' WHERE tbl='t1';
+  ANALYZE sqlite_schema;
+} {}
+do_execsql_test 18.2 {
+  EXPLAIN QUERY PLAN
+  SELECT a FROM t1 JOIN t2
+   WHERE a IN (1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20)
+     AND a=CASE WHEN d IS NOT NULL THEN e ELSE f END
+   ORDER BY a;
+} {/.*SCAN t2.*SEARCH t1.*/}
+#     ^^^^^^^--^^^^^^^^^---  t2 should be the outer loop.
+
+finish_test
diff --git a/test/sort2.test b/test/sort2.test
new file mode 100644
index 0000000000000000000000000000000000000000..9fe4b4ccf3fbe2c12de46b44284503a8846bc309
--- /dev/null
+++ b/test/sort2.test
@@ -0,0 +1,88 @@
+# 2014 March 25.
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. 
+#
+# Specifically, the tests in this file attempt to verify that 
+# multi-threaded sorting works.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix sort2
+db close
+sqlite3_shutdown
+sqlite3_config_pmasz 10
+sqlite3_initialize
+sqlite3 db test.db
+
+foreach {tn script} {
+  1 { }
+  2 {
+    catch { db close }
+    reset_db
+    catch { db eval {PRAGMA threads=7} }
+  }
+} {
+  eval $script
+
+  do_execsql_test $tn.1 {
+    PRAGMA cache_size = 5;
+    WITH r(x,y) AS (
+      SELECT 1, randomblob(100)
+      UNION ALL
+      SELECT x+1, randomblob(100) FROM r
+      LIMIT 100000
+    )
+    SELECT count(x), length(y) FROM r GROUP BY (x%5)
+  } {
+    20000 100 20000 100 20000 100 20000 100 20000 100
+  }
+
+  do_execsql_test $tn.2.1 {
+    CREATE TABLE t1(a, b);
+    WITH r(x,y) AS (
+      SELECT 1, randomblob(100)
+      UNION ALL
+      SELECT x+1, randomblob(100) FROM r
+      LIMIT 10000
+    ) INSERT INTO t1 SELECT * FROM r;
+  }
+  
+  do_execsql_test $tn.2.2 {
+    CREATE UNIQUE INDEX i1 ON t1(b, a);
+  }
+  
+  do_execsql_test $tn.2.3 {
+    CREATE UNIQUE INDEX i2 ON t1(a);
+  }
+  
+  do_execsql_test $tn.2.4 { PRAGMA integrity_check } {ok}
+  
+  # Because it uses so much data, this test can take 12-13 seconds even on
+  # a modern workstation. So it is omitted from "veryquick" and other
+  # permutations.test tests.
+  if {[isquick]==0 && [clang_sanitize_address]==0} {
+    do_execsql_test $tn.3 {
+      PRAGMA cache_size = 5;
+      WITH r(x,y) AS (
+          SELECT 1, randomblob(100)
+          UNION ALL
+          SELECT x+1, randomblob(100) FROM r
+          LIMIT 1000000
+          )
+        SELECT count(x), length(y) FROM r GROUP BY (x%5)
+    } {
+      200000 100 200000 100 200000 100 200000 100 200000 100
+    }
+  }
+}
+
+finish_test
diff --git a/test/sort3.test b/test/sort3.test
new file mode 100644
index 0000000000000000000000000000000000000000..088ae1642d6d62bde6fbeb3f8a1517e2d39c922e
--- /dev/null
+++ b/test/sort3.test
@@ -0,0 +1,113 @@
+# 2014 March 25.
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. 
+#
+# The tests in this file verify that sorting works when the library is
+# configured to use mmap(), but the temporary files generated by the
+# sorter are too large to be completely mapped.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix sort3
+
+#-------------------------------------------------------------------------
+# Sort some large ( > 4KiB) records.
+#
+proc cksum {x} {
+  set i1 1
+  set i2 2
+  binary scan $x c* L
+  foreach {a b} $L {
+    set i1 [expr (($i2<<3) + $a) & 0x7FFFFFFF]
+    set i2 [expr (($i1<<3) + $b) & 0x7FFFFFFF]
+  }
+  list $i1 $i2
+}
+db func cksum cksum
+
+do_execsql_test 1.0 {
+  PRAGMA cache_size = 5;
+  CREATE TABLE t11(a, b);
+  INSERT INTO t11 VALUES(randomblob(5000), NULL);
+  INSERT INTO t11 SELECT randomblob(5000), NULL FROM t11; --2
+  INSERT INTO t11 SELECT randomblob(5000), NULL FROM t11; --3
+  INSERT INTO t11 SELECT randomblob(5000), NULL FROM t11; --4
+  INSERT INTO t11 SELECT randomblob(5000), NULL FROM t11; --5
+  INSERT INTO t11 SELECT randomblob(5000), NULL FROM t11; --6
+  INSERT INTO t11 SELECT randomblob(5000), NULL FROM t11; --7
+  INSERT INTO t11 SELECT randomblob(5000), NULL FROM t11; --8
+  INSERT INTO t11 SELECT randomblob(5000), NULL FROM t11; --9
+  UPDATE t11 SET b = cksum(a);
+}
+
+foreach {tn mmap_limit} {
+  1 0
+  2 1000000
+} {
+  do_test 1.$tn {
+    sqlite3_test_control SQLITE_TESTCTRL_SORTER_MMAP db $mmap_limit
+    set prev ""
+    db eval { SELECT * FROM t11 ORDER BY b } {
+      if {$b != [cksum $a]} {error "checksum failed"}
+      if {[string compare $b $prev] < 0} {error "sort failed"}
+      set prev $b
+    }
+    set {} {}
+  } {}
+}
+
+
+# Sort roughly 20MB of data. Once with a mmap limit of 5MB and once without.
+#
+foreach {itest limit} {
+  1 5000000
+  2 0x7FFFFFFF
+} {
+  sqlite3_test_control SQLITE_TESTCTRL_SORTER_MMAP db $limit
+  do_execsql_test 2.$itest {
+    WITH r(x,y) AS (
+        SELECT 1, randomblob(1000)
+        UNION ALL
+        SELECT x+1, randomblob(1000) FROM r
+        LIMIT 20000
+    )
+    SELECT count(*), sum(length(y)) FROM r GROUP BY (x%5);
+  } {
+    4000 4000000 
+    4000 4000000 
+    4000 4000000 
+    4000 4000000 
+    4000 4000000
+  }
+}
+
+# Sort more than 2GB of data. At one point this was causing a problem.
+# This test might take one minute or more to run.
+#
+do_execsql_test 3 {
+  PRAGMA cache_size = 20000;
+  WITH r(x,y) AS (
+    SELECT 1, randomblob(1000)
+    UNION ALL
+    SELECT x+1, randomblob(1000) FROM r
+    LIMIT 2200000
+  )
+  SELECT count(*), sum(length(y)) FROM r GROUP BY (x%5);
+} {
+  440000 440000000 
+  440000 440000000 
+  440000 440000000 
+  440000 440000000 
+  440000 440000000
+}
+
+finish_test
diff --git a/test/sort4.test b/test/sort4.test
new file mode 100644
index 0000000000000000000000000000000000000000..17aa28baec62402d360cae25a9750069b04b1db7
--- /dev/null
+++ b/test/sort4.test
@@ -0,0 +1,212 @@
+# 2014 May 6.
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# TESTRUNNER: superslow
+#
+# This file implements regression tests for SQLite library. 
+#
+# The tests in this file are brute force tests of the multi-threaded
+# sorter.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix sort4
+db close
+sqlite3_shutdown
+sqlite3_config_pmasz 10
+sqlite3_initialize
+sqlite3 db test.db
+
+
+if {![string match *MAX_WORKER_THREADS=0* [db eval {PRAGMA compile_options}]]} {
+  # Configure the sorter to use 3 background threads.
+  #
+  # EVIDENCE-OF: R-19249-32353 SQLITE_LIMIT_WORKER_THREADS The maximum
+  # number of auxiliary worker threads that a single prepared statement
+  # may start.
+  #
+  do_test sort4-init001 {
+    db eval {PRAGMA threads=5}
+    sqlite3_limit db SQLITE_LIMIT_WORKER_THREADS -1
+  } {5}
+  do_test sort4-init002 {
+    sqlite3_limit db SQLITE_LIMIT_WORKER_THREADS 3
+    db eval {PRAGMA threads}
+  } {3}
+}
+
+
+# Minimum number of seconds to run for. If the value is 0, each test
+# is run exactly once. Otherwise, tests are repeated until the timeout
+# expires.
+set SORT4TIMEOUT 0
+if {[permutation] == "multithread"} { set SORT4TIMEOUT 300 }
+
+#--------------------------------------------------------------------
+# Set up a table "t1" containing $nRow rows. Each row contains also
+# contains blob fields that collectively contain at least $nPayload 
+# bytes of content. The table schema is as follows:
+#
+#   CREATE TABLE t1(a INTEGER, <extra-columns>, b INTEGER);
+#
+# For each row, the values of columns "a" and "b" are set to the same
+# pseudo-randomly selected integer. The "extra-columns", of which there
+# are at most eight, are named c0, c1, c2 etc. Column c0 contains a 4
+# byte string. Column c1 an 8 byte string. Field c2 16 bytes, and so on.
+#
+# This table is intended to be used for testing queries of the form: 
+#
+#   SELECT a, <cols>, b FROM t1 ORDER BY a;
+#
+# The test code checks that rows are returned in order, and that the 
+# values of "a" and "b" are the same for each row (the idea being that
+# if field "b" at the end of the sorter record has not been corrupted, 
+# the rest of the record is probably Ok as well).
+#
+proc populate_table {nRow nPayload} {
+  set nCol 0
+
+  set n 0
+  for {set nCol 0} {$n < $nPayload} {incr nCol} {
+    incr n [expr (4 << $nCol)]
+  }
+
+  set cols [lrange [list xxx c0 c1 c2 c3 c4 c5 c6 c7] 1 $nCol]
+  set data [lrange [list xxx \
+      randomblob(4) randomblob(8) randomblob(16) randomblob(32) \
+      randomblob(64) randomblob(128) randomblob(256) randomblob(512) \
+  ] 1 $nCol]
+
+  execsql { DROP TABLE IF EXISTS t1 }
+
+  db transaction {
+    execsql "CREATE TABLE t1(a, [join $cols ,], b);"
+    set insert "INSERT INTO t1 VALUES(:k, [join $data ,], :k)"
+    for {set i 0} {$i < $nRow} {incr i} {
+      set k [expr int(rand()*1000000000)]
+      execsql $insert
+    }
+  }
+}
+
+# Helper for [do_sorter_test]
+#
+proc sorter_test {nRow nRead nPayload} {
+  set res [list]
+
+  set nLoad [expr ($nRow > $nRead) ? $nRead : $nRow]
+
+  set nPayload [expr (($nPayload+3)/4) * 4]
+  set cols [list]
+  foreach {mask col} { 
+    0x04  c0 0x08  c1 0x10  c2 0x20  c3 
+    0x40  c4 0x80  c5 0x100 c6 0x200 c7 
+  } {
+    if {$nPayload & $mask} { lappend cols $col }
+  }
+
+  # Create two SELECT statements. Statement $sql1 uses the sorter to sort
+  # $nRow records of a bit over $nPayload bytes each read from the "t1"
+  # table created by [populate_table] proc above. Rows are sorted in order
+  # of the integer field in each "t1" record.
+  #
+  # The second SQL statement sorts the same set of rows as the first, but
+  # uses a LIMIT clause, causing SQLite to use a temp table instead of the
+  # sorter for sorting.
+  #
+  set sql1 "SELECT a, [join $cols ,], b FROM t1 WHERE rowid<=$nRow ORDER BY a"
+  set sql2 "SELECT a FROM t1 WHERE rowid<=$nRow ORDER BY a LIMIT $nRead"
+
+  # Pass the two SQL statements to a helper command written in C. This
+  # command steps statement $sql1 $nRead times and compares the integer
+  # values in the rows returned with the results of executing $sql2. If
+  # the comparison fails (indicating some bug in the sorter), a Tcl
+  # exception is thrown.
+  #
+  sorter_test_sort4_helper db $sql1 $nRead $sql2
+  set {} {} 
+}
+
+# Usage:
+#
+#   do_sorter_test <testname> <args>...
+#
+# where <args> are any of the following switches:
+#
+#   -rows N          (number of rows to have sorter sort)
+#   -read N          (number of rows to read out of sorter)
+#   -payload N       (bytes of payload to read with each row)
+#   -cachesize N     (Value for "PRAGMA cache_size = ?")
+#   -repeats N       (number of times to repeat test)
+#   -fakeheap BOOL   (true to use separate allocations for in-memory records)
+#
+proc do_sorter_test {tn args} {
+  set a(-rows)      1000
+  set a(-repeats)   1
+  set a(-read)      100
+  set a(-payload)   100
+  set a(-cachesize) 100
+  set a(-fakeheap)  0
+
+  foreach {s val} $args {
+    if {[info exists a($s)]==0} { 
+      unset a(-cachesize)
+      set optlist "[join [array names a] ,] or -cachesize"
+      error "Unknown option $s, expected $optlist"
+    }
+    set a($s) $val
+  }
+  if {[permutation] == "memsys3" || [permutation] == "memsys5"} {
+    set a(-fakeheap) 0
+  }
+  if {$a(-fakeheap)} { sorter_test_fakeheap 1 }
+
+
+  db eval "PRAGMA cache_size = $a(-cachesize)"
+  do_test $tn [subst -nocommands {
+    for {set i 0} {[set i] < $a(-repeats)} {incr i} {
+      sorter_test $a(-rows) $a(-read) $a(-payload)
+    }
+  }] {}
+
+  if {$a(-fakeheap)} { sorter_test_fakeheap 0 }
+}
+
+proc clock_seconds {} {
+  db one {SELECT strftime('%s')}
+}
+
+#-------------------------------------------------------------------------
+# Begin tests here.
+
+# Create a test database.
+do_test 1 {
+  execsql "PRAGMA page_size = 4096"
+  populate_table 100000 500
+} {}
+
+set iTimeLimit [expr [clock_seconds] + $SORT4TIMEOUT]
+
+for {set t 2} {1} {incr tn} {
+  do_sorter_test $t.2 -repeats 10 -rows 1000   -read 100
+  do_sorter_test $t.3 -repeats 10 -rows 100000 -read 1000
+  do_sorter_test $t.4 -repeats 10 -rows 100000 -read 1000 -payload 500
+  do_sorter_test $t.5 -repeats 10 -rows 100000 -read 100000 -payload 8
+  do_sorter_test $t.6 -repeats 10 -rows 100000 -read 10 -payload 8
+  do_sorter_test $t.7 -repeats 10 -rows 10000 -read 10000 -payload 8 -fakeheap 1
+  do_sorter_test $t.8 -repeats 10 -rows 100000 -read 10000 -cachesize 250
+
+  set iNow [clock_seconds]
+  if {$iNow>=$iTimeLimit} break
+  do_test "$testprefix-([expr $iTimeLimit-$iNow] seconds remain)" {} {}
+}
+
+finish_test
diff --git a/test/sort5.test b/test/sort5.test
new file mode 100644
index 0000000000000000000000000000000000000000..80dce01ab66cbec50e18b4ccc8edf9e09f16fbdc
--- /dev/null
+++ b/test/sort5.test
@@ -0,0 +1,122 @@
+# 2014 September 15.
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. 
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix sort5
+
+
+#-------------------------------------------------------------------------
+# Verify that sorting works with a version 1 sqlite3_io_methods structure.
+#
+testvfs tvfs -iversion 1 -default true
+reset_db
+do_execsql_test 1.0 {
+  PRAGMA mmap_size = 10000000;
+  PRAGMA cache_size = 10;
+  CREATE TABLE t1(a, b);
+} {0}
+
+do_test 1.1 {
+  execsql BEGIN
+  for {set i 0} {$i < 2000} {incr i} {
+    execsql { INSERT INTO t1 VALUES($i, randomblob(2000)) }
+  }
+  execsql COMMIT
+} {}
+
+do_execsql_test 1.2 {
+  CREATE INDEX i1 ON t1(b);
+}
+
+db close
+tvfs delete
+
+#-------------------------------------------------------------------------
+# Test that the PMA size is determined correctly. The PMA size should be
+# roughly the same amount of memory allocated to the main pager cache, or
+# 250 pages if this is larger.
+#
+testvfs tvfs
+tvfs script tv_callback
+tvfs filter {xOpen xWrite}
+
+proc tv_callback {method args} {
+  global iTemp
+  global F
+  switch $method {
+    xOpen {
+      if {[lindex $args 0]==""} { return "temp[incr iTemp]" }
+      return "SQLITE_OK"
+    }
+
+    xWrite {
+      foreach {filename id off amt} $args {}
+      if {[info exists F($id)]==0 || $F($id)<($off + $amt)} {
+        set F($id) [expr $off+$amt]
+      }
+    }
+  }
+}
+
+catch { db close }
+forcedelete test.db
+sqlite3 db test.db -vfs tvfs
+execsql { CREATE TABLE t1(x) }
+execsql { PRAGMA temp_store = 1 }
+
+# Each iteration of the following loop attempts to sort 10001 records
+# each a bit over 100 bytes in size. In total a little more than 1MiB 
+# of data.
+#
+foreach {tn pgsz cachesz bTemp} {
+  1 4096   1000  0
+  2 1024   1000  1
+
+  3 4096  -1000  1
+  4 1024  -1000  1
+
+  5 4096  -9000  0
+  6 1024  -9000  0
+} {
+  if {$::TEMP_STORE>2} {
+    set bTemp 0
+  }
+  do_execsql_test 2.$tn.0 "
+    PRAGMA page_size = $pgsz;
+    VACUUM;
+    PRAGMA cache_size = $cachesz;
+  "
+
+  if {[db one {PRAGMA page_size}]!=$pgsz} {
+    # SEE is not able to change page sizes and that messes up the
+    # results that follow.
+    continue
+  }
+
+  do_test 2.$tn.1 {
+    set ::iTemp 0
+    catch { array unset F }
+    execsql {
+      WITH x(i, j) AS (
+        SELECT 1, randomblob(100)
+        UNION ALL
+        SELECT i+1, randomblob(100) FROM x WHERE i<10000
+      )
+      SELECT * FROM x ORDER BY j;
+    }
+    expr {[array names F]!=""}
+  } $bTemp
+}
+
+finish_test
diff --git a/test/sorterref.test b/test/sorterref.test
new file mode 100644
index 0000000000000000000000000000000000000000..adf1cf53b2b9cf9cbfbc4748f424f7c638468c58
--- /dev/null
+++ b/test/sorterref.test
@@ -0,0 +1,56 @@
+# 2018 April 14.
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix sorterref
+
+# If SQLITE_OMIT_ALTERTABLE is defined, omit this file.
+ifcapable !altertable {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b, c);
+  INSERT INTO t1 VALUES(1, 2, 3);
+  INSERT INTO t1 VALUES(4, 5, 6);
+  ALTER TABLE t1 ADD COLUMN d DEFAULT 'string';
+  INSERT INTO t1 VALUES(7, 8, 9, 'text');
+}
+
+do_execsql_test 1.1 {
+  SELECT * FROM t1 ORDER BY b;
+} {
+  1 2 3 string 4 5 6 string 7 8 9 text
+}
+
+do_execsql_test 2.0 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a, b);
+  CREATE TABLE t2(c, d, PRIMARY KEY(c)) WITHOUT ROWID;
+
+  INSERT INTO t1 VALUES(1, 2);
+  INSERT INTO t1 VALUES(2, 3);
+  INSERT INTO t1 VALUES(3, 4);
+
+  INSERT INTO t2 VALUES(1, 'one');
+  INSERT INTO t2 VALUES(3, 'three');
+}
+
+do_execsql_test 2.1 {
+  SELECT * FROM t1 LEFT JOIN t2 ON (a=c) ORDER BY b;
+} {1 2 1 one 2 3 {} {} 3 4 3 three}
+
+
+
+finish_test
diff --git a/test/sortfault.test b/test/sortfault.test
new file mode 100644
index 0000000000000000000000000000000000000000..f9fe2be48af0383c0d1a867f3a506dfb85701d82
--- /dev/null
+++ b/test/sortfault.test
@@ -0,0 +1,171 @@
+# 2014 March 25.
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. 
+#
+# Specifically, it tests the effects of fault injection on the sorter
+# module (code in vdbesort.c).
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix sortfault
+db close
+sqlite3_shutdown
+sqlite3_config_pmasz 10
+sqlite3_initialize
+sqlite3 db test.db
+
+
+do_execsql_test 1.0 {
+  PRAGMA cache_size = 5;
+}
+
+foreach {tn mmap_limit nWorker tmpstore threadsmode fakeheap lookaside} {
+          1          0       0     file multithread    false     false
+          2     100000       0     file multithread    false     false
+          3     100000       1     file multithread    false     false
+          4    2000000       0     file singlethread   false      true
+} {
+  if {$sqlite_options(threadsafe)} { set threadsmode singlethread }
+
+  db eval "PRAGMA threads=$nWorker"
+  sqlite3_config $threadsmode
+  if { $lookaside } {
+    sqlite3_config_lookaside 100 500
+  } else {
+    sqlite3_config_lookaside 0 0
+  }
+  sqlite3_initialize
+  sorter_test_fakeheap $fakeheap
+
+  set str [string repeat a 1000]
+  puts $threadsmode
+
+  do_faultsim_test 1.$tn -prep {
+    sqlite3 db test.db
+    sqlite3_test_control SQLITE_TESTCTRL_SORTER_MMAP db $::mmap_limit
+    execsql { PRAGMA cache_size = 5 }
+  } -body {
+    execsql { 
+      WITH r(x,y) AS (
+          SELECT 1, $::str
+          UNION ALL
+          SELECT x+1, $::str FROM r
+          LIMIT 200
+      )
+      SELECT count(x), length(y) FROM r GROUP BY (x%5)
+    }
+  } -test {
+    faultsim_test_result {0 {40 1000 40 1000 40 1000 40 1000 40 1000}}
+  }
+
+  do_faultsim_test 2.$tn -faults oom* -prep {
+    sqlite3 db test.db
+    sqlite3_test_control SQLITE_TESTCTRL_SORTER_MMAP db $::mmap_limit
+    add_test_utf16bin_collate db
+    execsql { PRAGMA cache_size = 5 }
+  } -body {
+    execsql { 
+      WITH r(x,y) AS (
+          SELECT 100, $::str
+          UNION ALL
+          SELECT x-1, $::str FROM r
+          LIMIT 100
+      )
+      SELECT count(x), length(y) FROM r GROUP BY y COLLATE utf16bin, (x%5)
+    }
+  } -test {
+    faultsim_test_result {0 {20 1000 20 1000 20 1000 20 1000 20 1000}}
+  }
+
+  if {$mmap_limit > 1000000} {
+    set str2 [string repeat $str 10]
+
+    sqlite3_memdebug_vfs_oom_test 0
+    sqlite3 db test.db
+    sqlite3_test_control SQLITE_TESTCTRL_SORTER_MMAP db $::mmap_limit
+    execsql { PRAGMA cache_size = 5 }
+
+    do_faultsim_test 3.$tn -faults oom-trans* -body {
+      execsql { 
+        WITH r(x,y) AS (
+            SELECT 300, $::str2
+            UNION ALL
+            SELECT x-1, $::str2 FROM r
+            LIMIT 300
+        )
+        SELECT count(x), length(y) FROM r GROUP BY y, (x%5)
+      }
+    } -test {
+      faultsim_test_result {0 {60 10000 60 10000 60 10000 60 10000 60 10000}}
+    }
+
+    sqlite3_memdebug_vfs_oom_test 1
+  }
+}
+
+catch { db close }
+sqlite3_shutdown
+set t(0) singlethread
+set t(1) multithread
+set t(2) serialized
+sqlite3_config $t($sqlite_options(threadsafe))
+sqlite3_config_lookaside 100 500
+sqlite3_initialize
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 4.0 { 
+  CREATE TABLE t1(a, b, c); 
+  INSERT INTO t1 VALUES(1, 2, 3);
+}
+do_test 4.1 { 
+  for {set i 0} {$i < 256} {incr i} {
+    execsql { 
+      INSERT INTO t1 SELECT
+        ((a<<3) + b) & 2147483647,
+        ((b<<3) + c) & 2147483647,
+        ((c<<3) + a) & 2147483647
+      FROM t1 ORDER BY rowid DESC LIMIT 1;
+    }
+  }
+} {}
+
+faultsim_save_and_close
+
+do_faultsim_test 4.2 -faults oom* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { CREATE UNIQUE INDEX i1 ON t1(a,b,c) }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+set a [string repeat a 500]
+set b [string repeat b 500]
+set c [string repeat c 500]
+do_execsql_test 5.0 { 
+  CREATE TABLE t1(a, b, c); 
+  INSERT INTO t1 VALUES($a, $b, $c); 
+  INSERT INTO t1 VALUES($c, $b, $a); 
+}
+
+do_faultsim_test 5.1 -faults oom* -body {
+  execsql { SELECT * FROM t1 ORDER BY a }
+} -test {
+  faultsim_test_result [list 0 [list $::a $::b $::c $::c $::b $::a]]
+}
+
+finish_test
diff --git a/test/speed1.test b/test/speed1.test
new file mode 100644
index 0000000000000000000000000000000000000000..0dec3ba83cbf2eaf779ba96f2e379e26d09ee5a2
--- /dev/null
+++ b/test/speed1.test
@@ -0,0 +1,300 @@
+# 2006 November 23
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is measuring executing speed.
+#
+# $Id: speed1.test,v 1.11 2009/04/09 01:23:49 drh Exp $
+#
+
+catch {db close}
+sqlite3_shutdown
+#sqlite3_config_scratch 29000 1
+set old_lookaside [sqlite3_config_lookaside 1000 300]
+#sqlite3_config_pagecache 1024 10000
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+reset_db
+speed_trial_init speed1
+
+# Set a uniform random seed
+expr srand(0)
+
+set sqlout [open speed1.txt w]
+proc tracesql {sql} {
+  puts $::sqlout $sql\;
+}
+#db trace tracesql
+
+# The number_name procedure below converts its argment (an integer)
+# into a string which is the English-language name for that number.
+#
+# Example:
+#
+#     puts [number_name 123]   ->  "one hundred twenty three"
+#
+set ones {zero one two three four five six seven eight nine
+          ten eleven twelve thirteen fourteen fifteen sixteen seventeen
+          eighteen nineteen}
+set tens {{} ten twenty thirty forty fifty sixty seventy eighty ninety}
+proc number_name {n} {
+  if {$n>=1000} {
+    set txt "[number_name [expr {$n/1000}]] thousand"
+    set n [expr {$n%1000}]
+  } else {
+    set txt {}
+  }
+  if {$n>=100} {
+    append txt " [lindex $::ones [expr {$n/100}]] hundred"
+    set n [expr {$n%100}]
+  }
+  if {$n>=20} {
+    append txt " [lindex $::tens [expr {$n/10}]]"
+    set n [expr {$n%10}]
+  }
+  if {$n>0} {
+    append txt " [lindex $::ones $n]"
+  }
+  set txt [string trim $txt]
+  if {$txt==""} {set txt zero}
+  return $txt
+}
+
+# Create a database schema.
+#
+do_test speed1-1.0 {
+  execsql {
+    PRAGMA page_size=1024;
+    PRAGMA cache_size=8192;
+    PRAGMA locking_mode=EXCLUSIVE;
+    CREATE TABLE t1(a INTEGER, b INTEGER, c TEXT);
+    CREATE TABLE t2(a INTEGER, b INTEGER, c TEXT);
+    CREATE INDEX i2a ON t2(a);
+    CREATE INDEX i2b ON t2(b);
+  }
+  execsql {
+    SELECT name FROM sqlite_master ORDER BY 1;
+  }
+} {i2a i2b t1 t2}
+
+
+# 50000 INSERTs on an unindexed table
+#
+set sql {}
+for {set i 1} {$i<=50000} {incr i} {
+  set r [expr {int(rand()*500000)}]
+  append sql "INSERT INTO t1 VALUES($i,$r,'[number_name $r]');\n"
+}
+db eval BEGIN
+speed_trial speed1-insert1 50000 row $sql
+db eval COMMIT
+
+# 50000 INSERTs on an indexed table
+#
+set sql {}
+for {set i 1} {$i<=50000} {incr i} {
+  set r [expr {int(rand()*500000)}]
+  append sql "INSERT INTO t2 VALUES($i,$r,'[number_name $r]');\n"
+}
+db eval BEGIN
+speed_trial speed1-insert2 50000 row $sql
+db eval COMMIT
+
+
+
+# 50 SELECTs on an integer comparison.  There is no index so
+# a full table scan is required.
+#
+set sql {}
+for {set i 0} {$i<50} {incr i} {
+  set lwr [expr {$i*100}]
+  set upr [expr {($i+10)*100}]
+  append sql "SELECT count(*), avg(b) FROM t1 WHERE b>=$lwr AND b<$upr;"
+}
+db eval BEGIN
+speed_trial speed1-select1 [expr {50*50000}] row $sql
+db eval COMMIT
+
+# 50 SELECTs on an LIKE comparison.  There is no index so a full
+# table scan is required.
+#
+set sql {}
+for {set i 0} {$i<50} {incr i} {
+  append sql \
+    "SELECT count(*), avg(b) FROM t1 WHERE c LIKE '%[number_name $i]%';"
+}
+db eval BEGIN
+speed_trial speed1-select2 [expr {50*50000}] row $sql
+db eval COMMIT
+
+# Create indices
+#
+db eval BEGIN
+speed_trial speed1-createidx 150000 row {
+  CREATE INDEX i1a ON t1(a);
+  CREATE INDEX i1b ON t1(b);
+  CREATE INDEX i1c ON t1(c);
+}
+db eval COMMIT
+
+# 5000 SELECTs on an integer comparison where the integer is
+# indexed.
+#
+set sql {}
+for {set i 0} {$i<5000} {incr i} {
+  set lwr [expr {$i*100}]
+  set upr [expr {($i+10)*100}]
+  append sql "SELECT count(*), avg(b) FROM t1 WHERE b>=$lwr AND b<$upr;"
+}
+db eval BEGIN
+speed_trial speed1-select3 5000 stmt $sql
+db eval COMMIT
+
+# 100000 random SELECTs against rowid.
+#
+set sql {}
+for {set i 1} {$i<=100000} {incr i} {
+  set id [expr {int(rand()*50000)+1}]
+  append sql "SELECT c FROM t1 WHERE rowid=$id;"
+}
+db eval BEGIN
+speed_trial speed1-select4 100000 row $sql
+db eval COMMIT
+
+# 100000 random SELECTs against a unique indexed column.
+#
+set sql {}
+for {set i 1} {$i<=100000} {incr i} {
+  set id [expr {int(rand()*50000)+1}]
+  append sql "SELECT c FROM t1 WHERE a=$id;"
+}
+db eval BEGIN
+speed_trial speed1-select5 100000 row $sql
+db eval COMMIT
+
+# 50000 random SELECTs against an indexed column text column
+#
+set sql {}
+db eval {SELECT c FROM t1 ORDER BY random() LIMIT 50000} {
+  append sql "SELECT c FROM t1 WHERE c='$c';"
+}
+db eval BEGIN
+speed_trial speed1-select6 50000 row $sql
+db eval COMMIT
+
+
+# Vacuum
+speed_trial speed1-vacuum 100000 row VACUUM
+
+# 5000 updates of ranges where the field being compared is indexed.
+#
+set sql {}
+for {set i 0} {$i<5000} {incr i} {
+  set lwr [expr {$i*2}]
+  set upr [expr {($i+1)*2}]
+  append sql "UPDATE t1 SET b=b*2 WHERE a>=$lwr AND a<$upr;"
+}
+db eval BEGIN
+speed_trial speed1-update1 5000 stmt $sql
+db eval COMMIT
+
+# 50000 single-row updates.  An index is used to find the row quickly.
+#
+set sql {}
+for {set i 0} {$i<50000} {incr i} {
+  set r [expr {int(rand()*500000)}]
+  append sql "UPDATE t1 SET b=$r WHERE a=$i;"
+}
+db eval BEGIN
+speed_trial speed1-update2 50000 row $sql
+db eval COMMIT
+
+# 1 big text update that touches every row in the table.
+#
+speed_trial speed1-update3 50000 row {
+  UPDATE t1 SET c=a;
+}
+
+# Many individual text updates.  Each row in the table is
+# touched through an index.
+#
+set sql {}
+for {set i 1} {$i<=50000} {incr i} {
+  set r [expr {int(rand()*500000)}]
+  append sql "UPDATE t1 SET c='[number_name $r]' WHERE a=$i;"
+}
+db eval BEGIN
+speed_trial speed1-update4 50000 row $sql
+db eval COMMIT
+
+# Delete all content in a table.
+#
+speed_trial speed1-delete1 50000 row {DELETE FROM t1}
+
+# Copy one table into another
+#
+speed_trial speed1-copy1 50000 row {INSERT INTO t1 SELECT * FROM t2}
+
+# Delete all content in a table, one row at a time.
+#
+speed_trial speed1-delete2 50000 row {DELETE FROM t1 WHERE 1}
+
+# Refill the table yet again
+#
+speed_trial speed1-copy2 50000 row {INSERT INTO t1 SELECT * FROM t2}
+
+# Drop the table and recreate it without its indices.
+#
+db eval BEGIN
+speed_trial speed1-drop1 50000 row {
+   DROP TABLE t1;
+   CREATE TABLE t1(a INTEGER, b INTEGER, c TEXT);
+}
+db eval COMMIT
+
+# Refill the table yet again.  This copy should be faster because
+# there are no indices to deal with.
+#
+speed_trial speed1-copy3 50000 row {INSERT INTO t1 SELECT * FROM t2}
+
+# Select 20000 rows from the table at random.
+#
+speed_trial speed1-random1 50000 row {
+  SELECT rowid FROM t1 ORDER BY random() LIMIT 20000
+}
+
+# Delete 20000 random rows from the table.
+#
+speed_trial speed1-random-del1 20000 row {
+  DELETE FROM t1 WHERE rowid IN
+    (SELECT rowid FROM t1 ORDER BY random() LIMIT 20000)
+}
+do_test speed1-1.1 {
+  db one {SELECT count(*) FROM t1}
+} 30000
+
+    
+# Delete 20000 more rows at random from the table.
+#
+speed_trial speed1-random-del2 20000 row {
+  DELETE FROM t1 WHERE rowid IN
+    (SELECT rowid FROM t1 ORDER BY random() LIMIT 20000)
+}
+do_test speed1-1.2 {
+  db one {SELECT count(*) FROM t1}
+} 10000
+speed_trial_summary speed1
+
+db close
+sqlite3_shutdown
+eval sqlite3_config_lookaside $old_lookaside
+sqlite3_initialize
+autoinstall_test_functions
+finish_test
diff --git a/test/speed1p.explain b/test/speed1p.explain
new file mode 100644
index 0000000000000000000000000000000000000000..e32feddf304e2940ae4cedbf53fb9d2cf9b4106d
--- /dev/null
+++ b/test/speed1p.explain
@@ -0,0 +1,366 @@
+# 2008 March 21
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is measuring executing speed.  
+#
+# This is a copy of speed1.test modified to user prepared statements.
+#
+# $Id: speed1p.explain,v 1.1 2008/04/16 12:57:48 drh Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+speed_trial_init speed1
+
+# Set a uniform random seed
+expr srand(0)
+
+set sqlout [open speed1.txt w]
+proc tracesql {sql} {
+  puts $::sqlout $sql\;
+}
+#db trace tracesql
+
+# The number_name procedure below converts its argment (an integer)
+# into a string which is the English-language name for that number.
+#
+# Example:
+#
+#     puts [number_name 123]   ->  "one hundred twenty three"
+#
+set ones {zero one two three four five six seven eight nine
+          ten eleven twelve thirteen fourteen fifteen sixteen seventeen
+          eighteen nineteen}
+set tens {{} ten twenty thirty forty fifty sixty seventy eighty ninety}
+proc number_name {n} {
+  if {$n>=1000} {
+    set txt "[number_name [expr {$n/1000}]] thousand"
+    set n [expr {$n%1000}]
+  } else {
+    set txt {}
+  }
+  if {$n>=100} {
+    append txt " [lindex $::ones [expr {$n/100}]] hundred"
+    set n [expr {$n%100}]
+  }
+  if {$n>=20} {
+    append txt " [lindex $::tens [expr {$n/10}]]"
+    set n [expr {$n%10}]
+  }
+  if {$n>0} {
+    append txt " [lindex $::ones $n]"
+  }
+  set txt [string trim $txt]
+  if {$txt==""} {set txt zero}
+  return $txt
+}
+
+# Create a database schema.
+#
+do_test speed1p-1.0 {
+  execsql {
+    PRAGMA page_size=1024;
+    PRAGMA cache_size=8192;
+    PRAGMA locking_mode=EXCLUSIVE;
+    CREATE TABLE t1(a INTEGER, b INTEGER, c TEXT);
+    CREATE TABLE t2(a INTEGER, b INTEGER, c TEXT);
+    CREATE INDEX i2a ON t2(a);
+    CREATE INDEX i2b ON t2(b);
+  }
+  execsql {
+    SELECT name FROM sqlite_master ORDER BY 1;
+  }
+} {i2a i2b t1 t2}
+
+
+# 50000 INSERTs on an unindexed table
+#
+set list {}
+for {set i 1} {$i<=50000} {incr i} {
+  set r [expr {int(rand()*500000)}]
+  set x [number_name $r]
+  lappend list $i $r $x
+}
+set script {
+  foreach {i r x} $::list {
+    db eval {INSERT INTO t1 VALUES($i,$r,$x)}
+  }
+}
+explain {INSERT INTO t1 VALUES($i,$r,$x)}
+db eval BEGIN
+speed_trial_tcl speed1p-insert1 50000 row $script
+db eval COMMIT
+
+# 50000 INSERTs on an indexed table
+#
+set list {}
+for {set i 1} {$i<=50000} {incr i} {
+  set r [expr {int(rand()*500000)}]
+  set x [number_name $r]
+  lappend list $i $r $x
+}
+set script {
+  foreach {i r x} $::list {
+    db eval {INSERT INTO t2 VALUES($i,$r,$x)}
+  }
+}
+explain {INSERT INTO t2 VALUES($i,$r,$x)}
+db eval BEGIN
+speed_trial_tcl speed1p-insert2 50000 row $script
+db eval COMMIT
+
+
+
+# 50 SELECTs on an integer comparison.  There is no index so
+# a full table scan is required.
+#
+set list {}
+for {set i 0} {$i<50} {incr i} {
+  set lwr [expr {$i*100}]
+  set upr [expr {($i+10)*100}]
+  lappend list $lwr $upr
+}
+set script {
+  foreach {lwr upr} $::list {
+    db eval  {SELECT count(*), avg(b) FROM t1 WHERE b>=$lwr AND b<$upr}
+  }
+}
+explain {SELECT count(*), avg(b) FROM t1 WHERE b>=$lwr AND b<$upr}
+db eval BEGIN
+speed_trial_tcl speed1p-select1 [expr {50*50000}] row $script
+db eval COMMIT
+
+# 50 SELECTs on an LIKE comparison.  There is no index so a full
+# table scan is required.
+#
+set list {}
+for {set i 0} {$i<50} {incr i} {
+  lappend list "%[number_name $i]%"
+}
+set script {
+  foreach pattern $::list {
+    db eval {SELECT count(*), avg(b) FROM t1 WHERE c LIKE $pattern}
+  }
+}
+explain {SELECT count(*), avg(b) FROM t1 WHERE c LIKE $pattern}
+db eval BEGIN
+speed_trial_tcl speed1p-select2 [expr {50*50000}] row $script
+db eval COMMIT
+
+# Create indices
+#
+explain {CREATE INDEX i1a ON t1(a)}
+explain {CREATE INDEX i1b ON t1(b)}
+db eval BEGIN
+speed_trial speed1p-createidx 150000 row {
+  CREATE INDEX i1a ON t1(a);
+  CREATE INDEX i1b ON t1(b);
+  CREATE INDEX i1c ON t1(c);
+}
+db eval COMMIT
+
+# 5000 SELECTs on an integer comparison where the integer is
+# indexed.
+#
+set list {}
+for {set i 0} {$i<5000} {incr i} {
+  set lwr [expr {$i*100}]
+  set upr [expr {($i+10)*100}]
+  lappend list $lwr $upr
+}
+set script {
+  foreach {lwr upr} $::list {
+    db eval {SELECT count(*), avg(b) FROM t1 WHERE b>=$lwr AND b<$upr}
+  }
+}
+explain {SELECT count(*), avg(b) FROM t1 WHERE b>=$lwr AND b<$upr}
+db eval BEGIN
+speed_trial_tcl speed1p-select3 5000 stmt $script
+db eval COMMIT
+
+# 100000 random SELECTs against rowid.
+#
+set list {}
+for {set i 1} {$i<=100000} {incr i} {
+  set id [expr {int(rand()*50000)+1}]
+  lappend list $id
+}
+set script {
+  foreach id $::list {
+    db eval {SELECT c FROM t1 WHERE rowid=$id}
+  }
+}
+explain {SELECT c FROM t1 WHERE rowid=$id}
+db eval BEGIN
+speed_trial_tcl speed1p-select4 100000 row $script
+db eval COMMIT
+
+# 100000 random SELECTs against a unique indexed column.
+#
+set list {}
+for {set i 1} {$i<=100000} {incr i} {
+  set id [expr {int(rand()*50000)+1}]
+  lappend list $id
+}
+set script {
+  foreach id $::list {
+    db eval {SELECT c FROM t1 WHERE a=$id}
+  }
+}
+explain {SELECT c FROM t1 WHERE a=$id}
+db eval BEGIN
+speed_trial_tcl speed1p-select5 100000 row $script
+db eval COMMIT
+
+# 50000 random SELECTs against an indexed column text column
+#
+set list [db eval {SELECT c FROM t1 ORDER BY random() LIMIT 50000}]
+set script {
+  foreach c $::list {
+    db eval {SELECT c FROM t1 WHERE c=$c}
+  }
+}
+explain {SELECT c FROM t1 WHERE c=$c}
+db eval BEGIN
+speed_trial_tcl speed1p-select6 50000 row $script
+db eval COMMIT
+
+
+# Vacuum
+speed_trial speed1p-vacuum 100000 row VACUUM
+
+# 5000 updates of ranges where the field being compared is indexed.
+#
+set list {}
+for {set i 0} {$i<5000} {incr i} {
+  set lwr [expr {$i*2}]
+  set upr [expr {($i+1)*2}]
+  lappend list $lwr $upr
+}
+set script {
+  foreach {lwr upr} $::list {
+    db eval {UPDATE t1 SET b=b*2 WHERE a>=$lwr AND a<$upr}
+  }
+}
+explain {UPDATE t1 SET b=b*2 WHERE a>=$lwr AND a<$upr}
+db eval BEGIN
+speed_trial_tcl speed1p-update1 5000 stmt $script
+db eval COMMIT
+
+# 50000 single-row updates.  An index is used to find the row quickly.
+#
+set list {}
+for {set i 0} {$i<50000} {incr i} {
+  set r [expr {int(rand()*500000)}]
+  lappend list $i $r
+}
+set script {
+  foreach {i r} $::list {
+    db eval {UPDATE t1 SET b=$r WHERE a=$i}
+  }
+}
+explain {UPDATE t1 SET b=$r WHERE a=$i}
+db eval BEGIN
+speed_trial_tcl speed1p-update2 50000 row $script
+db eval COMMIT
+
+# 1 big text update that touches every row in the table.
+#
+explain {UPDATE t1 SET c=a}
+speed_trial speed1p-update3 50000 row {
+  UPDATE t1 SET c=a;
+}
+
+# Many individual text updates.  Each row in the table is
+# touched through an index.
+#
+set list {}
+for {set i 1} {$i<=50000} {incr i} {
+  set r [expr {int(rand()*500000)}]
+  lappend list $i [number_name $r]
+}
+set script {
+  foreach {i x} $::list {
+    db eval {UPDATE t1 SET c=$x WHERE a=$i}
+  }
+}
+explain {UPDATE t1 SET c=$x WHERE a=$i}
+db eval BEGIN
+speed_trial_tcl speed1p-update4 50000 row $script
+db eval COMMIT
+
+# Delete all content in a table.
+#
+explain {DELETE FROM t1}
+speed_trial speed1p-delete1 50000 row {DELETE FROM t1}
+
+# Copy one table into another
+#
+explain {INSERT INTO t1 SELECT * FROM t2}
+speed_trial speed1p-copy1 50000 row {INSERT INTO t1 SELECT * FROM t2}
+
+# Delete all content in a table, one row at a time.
+#
+explain {DELETE FROM t1 WHERE 1}
+speed_trial speed1p-delete2 50000 row {DELETE FROM t1 WHERE 1}
+
+# Refill the table yet again
+#
+speed_trial speed1p-copy2 50000 row {INSERT INTO t1 SELECT * FROM t2}
+
+# Drop the table and recreate it without its indices.
+#
+explain {DROP TABLE t1}
+explain {CREATE TABLE tX(a INTEGER, b INTEGER, c TEXT)}
+db eval BEGIN
+speed_trial speed1p-drop1 50000 row {
+   DROP TABLE t1;
+   CREATE TABLE t1(a INTEGER, b INTEGER, c TEXT);
+}
+db eval COMMIT
+
+# Refill the table yet again.  This copy should be faster because
+# there are no indices to deal with.
+#
+speed_trial speed1p-copy3 50000 row {INSERT INTO t1 SELECT * FROM t2}
+
+# Select 20000 rows from the table at random.
+#
+explain {SELECT rowid FROM t1 ORDER BY random() LIMIT 20000}
+speed_trial speed1p-random1 50000 row {
+  SELECT rowid FROM t1 ORDER BY random() LIMIT 20000
+}
+
+# Delete 20000 random rows from the table.
+#
+explain {DELETE FROM t1 WHERE rowid IN
+    (SELECT rowid FROM t1 ORDER BY random() LIMIT 20000)}
+speed_trial speed1p-random-del1 20000 row {
+  DELETE FROM t1 WHERE rowid IN
+    (SELECT rowid FROM t1 ORDER BY random() LIMIT 20000)
+}
+do_test speed1p-1.1 {
+  db one {SELECT count(*) FROM t1}
+} 30000
+
+    
+# Delete 20000 more rows at random from the table.
+#
+speed_trial speed1p-random-del2 20000 row {
+  DELETE FROM t1 WHERE rowid IN
+    (SELECT rowid FROM t1 ORDER BY random() LIMIT 20000)
+}
+do_test speed1p-1.2 {
+  db one {SELECT count(*) FROM t1}
+} 10000
+speed_trial_summary speed1
+
+finish_test
diff --git a/test/speed1p.test b/test/speed1p.test
new file mode 100644
index 0000000000000000000000000000000000000000..fc05067e3c1e9875c3e4f0c797002b8218b47046
--- /dev/null
+++ b/test/speed1p.test
@@ -0,0 +1,349 @@
+# 2008 March 21
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is measuring executing speed.  
+#
+# This is a copy of speed1.test modified to user prepared statements.
+#
+# $Id: speed1p.test,v 1.7 2009/04/09 01:23:49 drh Exp $
+#
+
+catch { db close }
+sqlite3_shutdown
+#sqlite3_config_scratch 29000 1
+set old_lookaside [sqlite3_config_lookaside 2048 300]
+#sqlite3_config_pagecache 1024 11000
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+reset_db
+speed_trial_init speed1
+
+sqlite3_memdebug_vfs_oom_test 0
+
+# Set a uniform random seed
+expr srand(0)
+
+# The number_name procedure below converts its argment (an integer)
+# into a string which is the English-language name for that number.
+#
+# Example:
+#
+#     puts [number_name 123]   ->  "one hundred twenty three"
+#
+set ones {zero one two three four five six seven eight nine
+          ten eleven twelve thirteen fourteen fifteen sixteen seventeen
+          eighteen nineteen}
+set tens {{} ten twenty thirty forty fifty sixty seventy eighty ninety}
+proc number_name {n} {
+  if {$n>=1000} {
+    set txt "[number_name [expr {$n/1000}]] thousand"
+    set n [expr {$n%1000}]
+  } else {
+    set txt {}
+  }
+  if {$n>=100} {
+    append txt " [lindex $::ones [expr {$n/100}]] hundred"
+    set n [expr {$n%100}]
+  }
+  if {$n>=20} {
+    append txt " [lindex $::tens [expr {$n/10}]]"
+    set n [expr {$n%10}]
+  }
+  if {$n>0} {
+    append txt " [lindex $::ones $n]"
+  }
+  set txt [string trim $txt]
+  if {$txt==""} {set txt zero}
+  return $txt
+}
+
+# Create a database schema.
+#
+do_test speed1p-1.0 {
+  execsql {
+    PRAGMA page_size=1024;
+    PRAGMA cache_size=500;
+    PRAGMA locking_mode=EXCLUSIVE;
+    CREATE TABLE t1(a INTEGER, b INTEGER, c TEXT);
+    CREATE TABLE t2(a INTEGER, b INTEGER, c TEXT);
+    CREATE INDEX i2a ON t2(a);
+    CREATE INDEX i2b ON t2(b);
+  }
+  execsql {
+    SELECT name FROM sqlite_master ORDER BY 1;
+  }
+} {i2a i2b t1 t2}
+
+# 50000 INSERTs on an unindexed table
+#
+set list {}
+for {set i 1} {$i<=50000} {incr i} {
+  set r [expr {int(rand()*500000)}]
+  set x [number_name $r]
+  lappend list $i $r $x
+}
+set script {
+  foreach {i r x} $::list {
+    db eval {INSERT INTO t1 VALUES($i,$r,$x)}
+  }
+}
+db eval BEGIN
+speed_trial_tcl speed1p-insert1 50000 row $script
+db eval COMMIT
+
+# 50000 INSERTs on an indexed table
+#
+set list {}
+for {set i 1} {$i<=50000} {incr i} {
+  set r [expr {int(rand()*500000)}]
+  set x [number_name $r]
+  lappend list $i $r $x
+}
+set script {
+  foreach {i r x} $::list {
+    db eval {INSERT INTO t2 VALUES($i,$r,$x)}
+  }
+}
+db eval BEGIN
+speed_trial_tcl speed1p-insert2 50000 row $script
+db eval COMMIT
+
+
+
+# 50 SELECTs on an integer comparison.  There is no index so
+# a full table scan is required.
+#
+set list {}
+for {set i 0} {$i<50} {incr i} {
+  set lwr [expr {$i*100}]
+  set upr [expr {($i+10)*100}]
+  lappend list $lwr $upr
+}
+set script {
+  foreach {lwr upr} $::list {
+    db eval  {SELECT count(*), avg(b) FROM t1 WHERE b>=$lwr AND b<$upr}
+  }
+}
+db eval BEGIN
+speed_trial_tcl speed1p-select1 [expr {50*50000}] row $script
+db eval COMMIT
+
+# 50 SELECTs on an LIKE comparison.  There is no index so a full
+# table scan is required.
+#
+set list {}
+for {set i 0} {$i<50} {incr i} {
+  lappend list "%[number_name $i]%"
+}
+set script {
+  foreach pattern $::list {
+    db eval {SELECT count(*), avg(b) FROM t1 WHERE c LIKE $pattern}
+  }
+}
+db eval BEGIN
+speed_trial_tcl speed1p-select2 [expr {50*50000}] row $script
+db eval COMMIT
+
+# Create indices
+#
+db eval BEGIN
+speed_trial speed1p-createidx 150000 row {
+  CREATE INDEX i1a ON t1(a);
+  CREATE INDEX i1b ON t1(b);
+  CREATE INDEX i1c ON t1(c);
+}
+db eval COMMIT
+
+# 5000 SELECTs on an integer comparison where the integer is
+# indexed.
+#
+set list {}
+for {set i 0} {$i<5000} {incr i} {
+  set lwr [expr {$i*100}]
+  set upr [expr {($i+10)*100}]
+  lappend list $lwr $upr
+}
+set script {
+  foreach {lwr upr} $::list {
+    db eval {SELECT count(*), avg(b) FROM t1 WHERE b>=$lwr AND b<$upr}
+  }
+}
+db eval BEGIN
+speed_trial_tcl speed1p-select3 5000 stmt $script
+db eval COMMIT
+
+# 100000 random SELECTs against rowid.
+#
+set list {}
+for {set i 1} {$i<=100000} {incr i} {
+  set id [expr {int(rand()*50000)+1}]
+  lappend list $id
+}
+set script {
+  foreach id $::list {
+    db eval {SELECT c FROM t1 WHERE rowid=$id}
+  }
+}
+db eval BEGIN
+speed_trial_tcl speed1p-select4 100000 row $script
+db eval COMMIT
+
+# 100000 random SELECTs against a unique indexed column.
+#
+set list {}
+for {set i 1} {$i<=100000} {incr i} {
+  set id [expr {int(rand()*50000)+1}]
+  lappend list $id
+}
+set script {
+  foreach id $::list {
+    db eval {SELECT c FROM t1 WHERE a=$id}
+  }
+}
+db eval BEGIN
+speed_trial_tcl speed1p-select5 100000 row $script
+db eval COMMIT
+
+# 50000 random SELECTs against an indexed column text column
+#
+set list [db eval {SELECT c FROM t1 ORDER BY random() LIMIT 50000}]
+set script {
+  foreach c $::list {
+    db eval {SELECT c FROM t1 WHERE c=$c}
+  }
+}
+db eval BEGIN
+speed_trial_tcl speed1p-select6 50000 row $script
+db eval COMMIT
+
+
+# Vacuum
+speed_trial speed1p-vacuum 100000 row VACUUM
+
+# 5000 updates of ranges where the field being compared is indexed.
+#
+set list {}
+for {set i 0} {$i<5000} {incr i} {
+  set lwr [expr {$i*2}]
+  set upr [expr {($i+1)*2}]
+  lappend list $lwr $upr
+}
+set script {
+  foreach {lwr upr} $::list {
+    db eval {UPDATE t1 SET b=b*2 WHERE a>=$lwr AND a<$upr}
+  }
+}
+db eval BEGIN
+speed_trial_tcl speed1p-update1 5000 stmt $script
+db eval COMMIT
+
+# 50000 single-row updates.  An index is used to find the row quickly.
+#
+set list {}
+for {set i 0} {$i<50000} {incr i} {
+  set r [expr {int(rand()*500000)}]
+  lappend list $i $r
+}
+set script {
+  foreach {i r} $::list {
+    db eval {UPDATE t1 SET b=$r WHERE a=$i}
+  }
+}
+db eval BEGIN
+speed_trial_tcl speed1p-update2 50000 row $script
+db eval COMMIT
+
+# 1 big text update that touches every row in the table.
+#
+speed_trial speed1p-update3 50000 row {
+  UPDATE t1 SET c=a;
+}
+
+# Many individual text updates.  Each row in the table is
+# touched through an index.
+#
+set list {}
+for {set i 1} {$i<=50000} {incr i} {
+  set r [expr {int(rand()*500000)}]
+  lappend list $i [number_name $r]
+}
+set script {
+  foreach {i x} $::list {
+    db eval {UPDATE t1 SET c=$x WHERE a=$i}
+  }
+}
+db eval BEGIN
+speed_trial_tcl speed1p-update4 50000 row $script
+db eval COMMIT
+
+# Delete all content in a table.
+#
+speed_trial speed1p-delete1 50000 row {DELETE FROM t1}
+
+# Copy one table into another
+#
+speed_trial speed1p-copy1 50000 row {INSERT INTO t1 SELECT * FROM t2}
+
+# Delete all content in a table, one row at a time.
+#
+speed_trial speed1p-delete2 50000 row {DELETE FROM t1 WHERE 1}
+
+# Refill the table yet again
+#
+speed_trial speed1p-copy2 50000 row {INSERT INTO t1 SELECT * FROM t2}
+
+# Drop the table and recreate it without its indices.
+#
+db eval BEGIN
+speed_trial speed1p-drop1 50000 row {
+   DROP TABLE t1;
+   CREATE TABLE t1(a INTEGER, b INTEGER, c TEXT);
+}
+db eval COMMIT
+
+# Refill the table yet again.  This copy should be faster because
+# there are no indices to deal with.
+#
+speed_trial speed1p-copy3 50000 row {INSERT INTO t1 SELECT * FROM t2}
+
+# Select 20000 rows from the table at random.
+#
+speed_trial speed1p-random1 50000 row {
+  SELECT rowid FROM t1 ORDER BY random() LIMIT 20000
+}
+
+# Delete 20000 random rows from the table.
+#
+speed_trial speed1p-random-del1 20000 row {
+  DELETE FROM t1 WHERE rowid IN
+    (SELECT rowid FROM t1 ORDER BY random() LIMIT 20000)
+}
+do_test speed1p-1.1 {
+  db one {SELECT count(*) FROM t1}
+} 30000
+    
+# Delete 20000 more rows at random from the table.
+#
+speed_trial speed1p-random-del2 20000 row {
+  DELETE FROM t1 WHERE rowid IN
+    (SELECT rowid FROM t1 ORDER BY random() LIMIT 20000)
+}
+do_test speed1p-1.2 {
+  db one {SELECT count(*) FROM t1}
+} 10000
+speed_trial_summary speed1
+
+db close
+sqlite3_shutdown
+eval sqlite3_config_lookaside $old_lookaside
+sqlite3_initialize
+autoinstall_test_functions
+finish_test
diff --git a/test/speed2.test b/test/speed2.test
new file mode 100644
index 0000000000000000000000000000000000000000..f6d1a4c8ab6e20add3f932d9e9aa4017f05fac20
--- /dev/null
+++ b/test/speed2.test
@@ -0,0 +1,339 @@
+# 2006 November 23
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is measuring executing speed.
+#
+# $Id: speed2.test,v 1.7 2007/04/16 15:02:20 drh Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+speed_trial_init speed2
+
+# Set a uniform random seed
+expr srand(0)
+
+set sqlout [open speed2.txt w]
+proc tracesql {sql} {
+  puts $::sqlout $sql\;
+}
+#db trace tracesql
+
+# The number_name procedure below converts its argment (an integer)
+# into a string which is the English-language name for that number.
+#
+# Example:
+#
+#     puts [number_name 123]   ->  "one hundred twenty three"
+#
+set ones {zero one two three four five six seven eight nine
+          ten eleven twelve thirteen fourteen fifteen sixteen seventeen
+          eighteen nineteen}
+set tens {{} ten twenty thirty forty fifty sixty seventy eighty ninety}
+proc number_name {n} {
+  if {$n>=1000} {
+    set txt "[number_name [expr {$n/1000}]] thousand"
+    set n [expr {$n%1000}]
+  } else {
+    set txt {}
+  }
+  if {$n>=100} {
+    append txt " [lindex $::ones [expr {$n/100}]] hundred"
+    set n [expr {$n%100}]
+  }
+  if {$n>=20} {
+    append txt " [lindex $::tens [expr {$n/10}]]"
+    set n [expr {$n%10}]
+  }
+  if {$n>0} {
+    append txt " [lindex $::ones $n]"
+  }
+  set txt [string trim $txt]
+  if {$txt==""} {set txt zero}
+  return $txt
+}
+
+# Create a database schema.
+#
+do_test speed2-1.0 {
+  execsql {
+    PRAGMA page_size=1024;
+    PRAGMA cache_size=8192;
+    PRAGMA locking_mode=EXCLUSIVE;
+    CREATE TABLE t1(a INTEGER, b INTEGER, c TEXT);
+    CREATE TABLE t2(a INTEGER, b INTEGER, c TEXT);
+    CREATE INDEX i2a ON t2(a);
+    CREATE INDEX i2b ON t2(b);
+  }
+  execsql {
+    SELECT name FROM sqlite_master ORDER BY 1;
+  }
+} {i2a i2b t1 t2}
+
+
+# 50000 INSERTs on an unindexed table
+#
+set sql {}
+for {set i 1} {$i<=50000} {incr i} {
+  set r [expr {int(rand()*500000)}]
+  append sql "INSERT INTO t1 VALUES($i,$r,'[number_name $r]');\n"
+}
+db eval BEGIN
+speed_trial speed2-insert1 50000 row $sql
+db eval COMMIT
+
+# 50000 INSERTs on an indexed table
+#
+set sql {}
+for {set i 1} {$i<=50000} {incr i} {
+  set r [expr {int(rand()*500000)}]
+  append sql "INSERT INTO t2 VALUES($i,$r,'[number_name $r]');\n"
+}
+db eval BEGIN
+speed_trial speed2-insert2 50000 row $sql
+db eval COMMIT
+
+
+
+# 50 SELECTs on an integer comparison.  There is no index so
+# a full table scan is required.
+#
+set sql {}
+for {set i 0} {$i<50} {incr i} {
+  set lwr [expr {$i*100}]
+  set upr [expr {($i+10)*100}]
+  append sql "SELECT count(*), avg(b) FROM t1 WHERE b>=$lwr AND b<$upr;"
+}
+speed_trial speed2-select1a [expr {50*50000}] row $sql
+
+# 50 SELECTs on an LIKE comparison.  There is no index so a full
+# table scan is required.
+#
+set sql {}
+for {set i 0} {$i<50} {incr i} {
+  append sql \
+    "SELECT count(*), avg(b) FROM t1 WHERE c LIKE '%[number_name $i]%';"
+}
+speed_trial speed2-select2a [expr {50*50000}] row $sql
+
+# Vacuum
+speed_trial speed2-vacuum1 100000 row VACUUM
+
+# 50 SELECTs on an integer comparison.  There is no index so
+# a full table scan is required.
+#
+set sql {}
+for {set i 0} {$i<50} {incr i} {
+  set lwr [expr {$i*100}]
+  set upr [expr {($i+10)*100}]
+  append sql "SELECT count(*), avg(b) FROM t1 WHERE b>=$lwr AND b<$upr;"
+}
+speed_trial speed2-select1b [expr {50*50000}] row $sql
+
+# 50 SELECTs on an LIKE comparison.  There is no index so a full
+# table scan is required.
+#
+set sql {}
+for {set i 0} {$i<50} {incr i} {
+  append sql \
+    "SELECT count(*), avg(b) FROM t1 WHERE c LIKE '%[number_name $i]%';"
+}
+speed_trial speed2-select2b [expr {50*50000}] row $sql
+
+# Create indices
+#
+db eval BEGIN
+speed_trial speed2-createidx 150000 row {
+  CREATE INDEX i1a ON t1(a);
+  CREATE INDEX i1b ON t1(b);
+  CREATE INDEX i1c ON t1(c);
+}
+db eval COMMIT
+
+# 5000 SELECTs on an integer comparison where the integer is
+# indexed.
+#
+set sql {}
+for {set i 0} {$i<5000} {incr i} {
+  set lwr [expr {$i*100}]
+  set upr [expr {($i+10)*100}]
+  append sql "SELECT count(*), avg(b) FROM t1 WHERE b>=$lwr AND b<$upr;"
+}
+speed_trial speed2-select3a 5000 stmt $sql
+
+# 100000 random SELECTs against rowid.
+#
+set sql {}
+for {set i 1} {$i<=100000} {incr i} {
+  set id [expr {int(rand()*50000)+1}]
+  append sql "SELECT c=='hi' FROM t1 WHERE rowid=$id;\n"
+}
+speed_trial speed2-select4a 100000 row $sql
+
+# 100000 random SELECTs against a unique indexed column.
+#
+set sql {}
+for {set i 1} {$i<=100000} {incr i} {
+  set id [expr {int(rand()*50000)+1}]
+  append sql "SELECT c FROM t1 WHERE a=$id;"
+}
+speed_trial speed2-select5a 100000 row $sql
+
+# 50000 random SELECTs against an indexed column text column
+#
+set sql {}
+db eval {SELECT c FROM t1 ORDER BY random() LIMIT 50000} {
+  append sql "SELECT c FROM t1 WHERE c='$c';"
+}
+speed_trial speed2-select6a 50000 row $sql
+
+# Vacuum
+speed_trial speed2-vacuum2 100000 row VACUUM
+
+
+# 5000 SELECTs on an integer comparison where the integer is
+# indexed.
+#
+set sql {}
+for {set i 0} {$i<5000} {incr i} {
+  set lwr [expr {$i*100}]
+  set upr [expr {($i+10)*100}]
+  append sql "SELECT count(*), avg(b) FROM t1 WHERE b>=$lwr AND b<$upr;"
+}
+speed_trial speed2-select3b 5000 stmt $sql
+
+# 100000 random SELECTs against rowid.
+#
+set sql {}
+for {set i 1} {$i<=100000} {incr i} {
+  set id [expr {int(rand()*50000)+1}]
+  append sql "SELECT c=='hi' FROM t1 WHERE rowid=$id;\n"
+}
+speed_trial speed2-select4b 100000 row $sql
+
+# 100000 random SELECTs against a unique indexed column.
+#
+set sql {}
+for {set i 1} {$i<=100000} {incr i} {
+  set id [expr {int(rand()*50000)+1}]
+  append sql "SELECT c FROM t1 WHERE a=$id;"
+}
+speed_trial speed2-select5b 100000 row $sql
+
+# 50000 random SELECTs against an indexed column text column
+#
+set sql {}
+db eval {SELECT c FROM t1 ORDER BY random() LIMIT 50000} {
+  append sql "SELECT c FROM t1 WHERE c='$c';"
+}
+speed_trial speed2-select6b 50000 row $sql
+
+# 5000 updates of ranges where the field being compared is indexed.
+#
+set sql {}
+for {set i 0} {$i<5000} {incr i} {
+  set lwr [expr {$i*2}]
+  set upr [expr {($i+1)*2}]
+  append sql "UPDATE t1 SET b=b*2 WHERE a>=$lwr AND a<$upr;"
+}
+db eval BEGIN
+speed_trial speed2-update1 5000 stmt $sql
+db eval COMMIT
+
+# 50000 single-row updates.  An index is used to find the row quickly.
+#
+set sql {}
+for {set i 0} {$i<50000} {incr i} {
+  set r [expr {int(rand()*500000)}]
+  append sql "UPDATE t1 SET b=$r WHERE a=$i;"
+}
+db eval BEGIN
+speed_trial speed2-update2 50000 row $sql
+db eval COMMIT
+
+# 1 big text update that touches every row in the table.
+#
+speed_trial speed2-update3 50000 row {
+  UPDATE t1 SET c=a;
+}
+
+# Many individual text updates.  Each row in the table is
+# touched through an index.
+#
+set sql {}
+for {set i 1} {$i<=50000} {incr i} {
+  set r [expr {int(rand()*500000)}]
+  append sql "UPDATE t1 SET c='[number_name $r]' WHERE a=$i;"
+}
+db eval BEGIN
+speed_trial speed2-update4 50000 row $sql
+db eval COMMIT
+
+# Delete all content in a table.
+#
+speed_trial speed2-delete1 50000 row {DELETE FROM t1}
+
+# Copy one table into another
+#
+speed_trial speed2-copy1 50000 row {INSERT INTO t1 SELECT * FROM t2}
+
+# Delete all content in a table, one row at a time.
+#
+speed_trial speed2-delete2 50000 row {DELETE FROM t1 WHERE 1}
+
+# Refill the table yet again
+#
+speed_trial speed2-copy2 50000 row {INSERT INTO t1 SELECT * FROM t2}
+
+# Drop the table and recreate it without its indices.
+#
+db eval BEGIN
+speed_trial speed2-drop1 50000 row {
+   DROP TABLE t1;
+   CREATE TABLE t1(a INTEGER, b INTEGER, c TEXT);
+}
+db eval COMMIT
+
+# Refill the table yet again.  This copy should be faster because
+# there are no indices to deal with.
+#
+speed_trial speed2-copy3 50000 row {INSERT INTO t1 SELECT * FROM t2}
+
+# Select 20000 rows from the table at random.
+#
+speed_trial speed2-random1 50000 row {
+  SELECT rowid FROM t1 ORDER BY random() LIMIT 20000
+}
+
+# Delete 20000 random rows from the table.
+#
+speed_trial speed2-random-del1 20000 row {
+  DELETE FROM t1 WHERE rowid IN
+    (SELECT rowid FROM t1 ORDER BY random() LIMIT 20000)
+}
+do_test speed2-1.1 {
+  db one {SELECT count(*) FROM t1}
+} 30000
+
+    
+# Delete 20000 more rows at random from the table.
+#
+speed_trial speed2-random-del2 20000 row {
+  DELETE FROM t1 WHERE rowid IN
+    (SELECT rowid FROM t1 ORDER BY random() LIMIT 20000)
+}
+do_test speed2-1.2 {
+  db one {SELECT count(*) FROM t1}
+} 10000
+speed_trial_summary speed2
+
+
+finish_test
diff --git a/test/speed3.test b/test/speed3.test
new file mode 100644
index 0000000000000000000000000000000000000000..4aa90943bad1989a5fb5b762079df3e6e7026fbd
--- /dev/null
+++ b/test/speed3.test
@@ -0,0 +1,172 @@
+# 2007 May 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library. The 
+# focus of this script is testing that the overflow-page related
+# enhancements added after version 3.3.17 speed things up.
+#
+# $Id: speed3.test,v 1.6 2009/07/09 02:48:24 shane Exp $
+#
+
+#---------------------------------------------------------------------
+# Test plan:
+#
+# If auto-vacuum is enabled for the database, the following cases
+# should show performance improvement with respect to 3.3.17.
+#
+#   + When deleting rows that span overflow pages. This is faster
+#     because the overflow pages no longer need to be read before
+#     they can be moved to the free list (test cases speed3-1.X). 
+#
+#   + When reading a column value stored on an overflow page that
+#     is not the first overflow page for the row. The improvement
+#     in this case is because the overflow pages between the tree
+#     page and the overflow page containing the value do not have
+#     to be read (test cases speed3-2.X).
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !tclvar||!attach {
+  finish_test
+  return
+}
+
+speed_trial_init speed1
+
+# Set a uniform random seed
+expr srand(0)
+
+set ::NROW 1000
+
+# The number_name procedure below converts its argment (an integer)
+# into a string which is the English-language name for that number.
+#
+# Example:
+#
+#     puts [number_name 123]   ->  "one hundred twenty three"
+#
+set ones {zero one two three four five six seven eight nine
+          ten eleven twelve thirteen fourteen fifteen sixteen seventeen
+          eighteen nineteen}
+set tens {{} ten twenty thirty forty fifty sixty seventy eighty ninety}
+proc number_name {n} {
+  if {$n>=1000} {
+    set txt "[number_name [expr {$n/1000}]] thousand"
+    set n [expr {$n%1000}]
+  } else {
+    set txt {}
+  }
+  if {$n>=100} {
+    append txt " [lindex $::ones [expr {$n/100}]] hundred"
+    set n [expr {$n%100}]
+  }
+  if {$n>=20} {
+    append txt " [lindex $::tens [expr {$n/10}]]"
+    set n [expr {$n%10}]
+  }
+  if {$n>0} {
+    append txt " [lindex $::ones $n]"
+  }
+  set txt [string trim $txt]
+  if {$txt==""} {set txt zero}
+  return $txt
+}
+
+proc populate_t1 {db} {
+  $db transaction {
+    for {set ii 0} {$ii < $::NROW} {incr ii} {
+      set N [number_name $ii]
+      set repeats [expr {(10000/[string length $N])+1}]
+      set text [string range [string repeat $N $repeats] 0 10000]
+      $db eval {INSERT INTO main.t1 VALUES($ii, $text, $ii)}
+    }
+    $db eval {INSERT INTO aux.t1 SELECT * FROM main.t1}
+  }
+}
+
+
+proc io_log {db} {
+  db_enter db
+  array set stats1 [btree_pager_stats [btree_from_db db]]
+  array set stats2 [btree_pager_stats [btree_from_db db 2]]
+  db_leave db
+# puts "1: [array get stats1]"
+# puts "2: [array get stats2]"
+  puts "Incrvacuum: Read $stats1(read), wrote $stats1(write)"
+  puts "Normal    : Read $stats2(read), wrote $stats2(write)"
+}
+
+proc speed3_reset_db {} {
+  db close
+  sqlite3 db test.db
+  db eval { 
+    PRAGMA main.cache_size = 200000;
+    PRAGMA main.auto_vacuum = 'incremental';
+    ATTACH 'test2.db' AS 'aux'; 
+    PRAGMA aux.auto_vacuum = 'none';
+  }
+}
+
+forcedelete test2.db test2.db-journal
+speed3_reset_db
+
+# Set up a database in auto-vacuum mode and create a database schema.
+#
+do_test speed3-0.1 {
+  execsql {
+    CREATE TABLE main.t1(a INTEGER, b TEXT, c INTEGER);
+  }
+  execsql {
+    SELECT name FROM sqlite_master ORDER BY 1;
+  }
+} {t1}
+do_test speed3-0.2 {
+  execsql {
+    CREATE TABLE aux.t1(a INTEGER, b TEXT, c INTEGER);
+  }
+  execsql {
+    SELECT name FROM aux.sqlite_master ORDER BY 1;
+  }
+} {t1}
+do_test speed3-0.3 {
+  populate_t1 db
+  execsql {
+    SELECT count(*) FROM main.t1;
+    SELECT count(*) FROM aux.t1;
+  }
+} "$::NROW $::NROW"
+do_test speed3-0.4 {
+  execsql {
+    PRAGMA main.auto_vacuum;
+    PRAGMA aux.auto_vacuum;
+  }
+} {2 0}
+
+# Delete all content in a table, one row at a time.
+#
+#io_log db
+speed3_reset_db
+speed_trial speed3-1.incrvacuum $::NROW row {DELETE FROM main.t1 WHERE 1}
+speed_trial speed3-1.normal     $::NROW row {DELETE FROM aux.t1 WHERE 1}
+io_log db
+
+# Select the "C" column (located at the far end of the overflow 
+# chain) from each table row.
+#
+#db eval {PRAGMA incremental_vacuum(500000)}
+populate_t1 db
+speed3_reset_db
+speed_trial speed3-2.incrvacuum $::NROW row {SELECT c FROM main.t1}
+speed_trial speed3-2.normal     $::NROW row {SELECT c FROM aux.t1}
+io_log db
+
+finish_test
diff --git a/test/speed4.test b/test/speed4.test
new file mode 100644
index 0000000000000000000000000000000000000000..2ccdaf5cd3a3874ee36d279d848e144d8b81cbd9
--- /dev/null
+++ b/test/speed4.test
@@ -0,0 +1,231 @@
+# 2007 October 23
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is measuring executing speed. More specifically,
+# the focus is on the speed of:
+#
+#   * joins
+#   * views
+#   * sub-selects
+#   * triggers
+#
+# $Id: speed4.test,v 1.2 2008/07/12 14:52:20 drh Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+speed_trial_init speed1
+
+# Set a uniform random seed
+expr srand(0)
+
+set sqlout [open speed1.txt w]
+proc tracesql {sql} {
+  puts $::sqlout $sql\;
+}
+#db trace tracesql
+
+# The number_name procedure below converts its argment (an integer)
+# into a string which is the English-language name for that number.
+#
+# Example:
+#
+#     puts [number_name 123]   ->  "one hundred twenty three"
+#
+set ones {zero one two three four five six seven eight nine
+          ten eleven twelve thirteen fourteen fifteen sixteen seventeen
+          eighteen nineteen}
+set tens {{} ten twenty thirty forty fifty sixty seventy eighty ninety}
+proc number_name {n} {
+  if {$n>=1000} {
+    set txt "[number_name [expr {$n/1000}]] thousand"
+    set n [expr {$n%1000}]
+  } else {
+    set txt {}
+  }
+  if {$n>=100} {
+    append txt " [lindex $::ones [expr {$n/100}]] hundred"
+    set n [expr {$n%100}]
+  }
+  if {$n>=20} {
+    append txt " [lindex $::tens [expr {$n/10}]]"
+    set n [expr {$n%10}]
+  }
+  if {$n>0} {
+    append txt " [lindex $::ones $n]"
+  }
+  set txt [string trim $txt]
+  if {$txt==""} {set txt zero}
+  return $txt
+}
+
+# Summary of tests:
+#
+#   speed4-join1: Join three tables using IPK index.
+#   speed4-join2: Join three tables using an index.
+#   speed4-join3: Join two tables without an index.
+#
+#   speed4-view1:  Querying a view.
+#   speed4-table1: Same queries as in speed4-view1, but run directly against
+#                  the tables for comparison purposes.
+#
+#   speed4-subselect1: A SELECT statement that uses many sub-queries..
+#
+#   speed4-trigger1: An INSERT statement that fires a trigger.
+#   speed4-trigger2: An UPDATE statement that fires a trigger.
+#   speed4-trigger3: A DELETE statement that fires a trigger.
+#   speed4-notrigger1: Same operation as trigger1, but without the trigger.
+#   speed4-notrigger2:        "          trigger2           "
+#   speed4-notrigger3:        "          trigger3           "
+#
+
+# Set up the schema. Each of the tables t1, t2 and t3 contain 50,000 rows.
+# This creates a database of around 16MB.
+execsql {
+  BEGIN;
+  CREATE TABLE t1(rowid INTEGER PRIMARY KEY, i INTEGER, t TEXT);
+  CREATE TABLE t2(rowid INTEGER PRIMARY KEY, i INTEGER, t TEXT);
+  CREATE TABLE t3(rowid INTEGER PRIMARY KEY, i INTEGER, t TEXT);
+
+  CREATE VIEW v1 AS SELECT rowid, i, t FROM t1;
+  CREATE VIEW v2 AS SELECT rowid, i, t FROM t2;
+  CREATE VIEW v3 AS SELECT rowid, i, t FROM t3;
+}
+for {set jj 1} {$jj <= 3} {incr jj} {
+  set stmt [string map "%T% t$jj" {INSERT INTO %T% VALUES(NULL, $i, $t)}]
+  for {set ii 0} {$ii < 50000} {incr ii} {
+    set i [expr {int(rand()*50000)}]
+    set t [number_name $i]
+    execsql $stmt
+  }
+}
+execsql {
+  CREATE INDEX i1 ON t1(t);
+  CREATE INDEX i2 ON t2(t);
+  CREATE INDEX i3 ON t3(t);
+  COMMIT;
+}
+
+# Before running these tests, disable the compiled statement cache built into
+# the Tcl interface. This is because we want to test the speed of SQL
+# compilation as well as execution.
+#
+db cache size 0
+
+# Join t1, t2, t3 on IPK.
+set sql "SELECT * FROM t1, t2, t3 WHERE t1.oid = t2.oid AND t2.oid = t3.oid"
+speed_trial speed4-join1 50000 row $sql
+
+# Join t1, t2, t3 on the non-IPK index.
+set sql "SELECT * FROM t1, t2, t3 WHERE t1.t = t2.t AND t2.t = t3.t"
+speed_trial speed4-join2 50000 row $sql
+
+# Run 10000 simple queries against the views.
+set sql ""
+for {set ii 1} {$ii < 10000} {incr ii} {
+  append sql "SELECT * FROM v[expr {($ii%3)+1}] WHERE rowid = [expr {$ii*3}];"
+}
+speed_trial speed4-view1 10000 stmt $sql
+
+# Run the same 10000 simple queries as in the previous test case against
+# the underlying tables. The compiled vdbe programs should be identical, so
+# the only difference in running time is the extra time taken to compile
+# the view definitions.
+#
+set sql ""
+for {set ii 1} {$ii < 10000} {incr ii} {
+  append sql "SELECT t FROM t[expr {($ii%3)+1}] WHERE rowid = [expr {$ii*3}];"
+}
+speed_trial speed4-table1 10000 stmt $sql
+
+# Run a SELECT that uses sub-queries 10000 times. A total of 30000 sub-selects.
+#
+set sql ""
+for {set ii 1} {$ii < 10000} {incr ii} {
+  append sql "
+    SELECT (SELECT t FROM t1 WHERE rowid = [expr {$ii*3}]), 
+           (SELECT t FROM t2 WHERE rowid = [expr {$ii*3}]), 
+           (SELECT t FROM t3 WHERE rowid = [expr {$ii*3}])
+  ;"
+}
+speed_trial speed4-subselect1 10000 stmt $sql
+
+# The following block tests the speed of some DML statements that cause
+# triggers to fire.
+#
+execsql {
+  CREATE TABLE log(op TEXT, r INTEGER, i INTEGER, t TEXT);
+  CREATE TABLE t4(rowid INTEGER PRIMARY KEY, i INTEGER, t TEXT);
+  CREATE TRIGGER t4_trigger1 AFTER INSERT ON t4 BEGIN
+    INSERT INTO log VALUES('INSERT INTO t4', new.rowid, new.i, new.t);
+  END;
+  CREATE TRIGGER t4_trigger2 AFTER UPDATE ON t4 BEGIN
+    INSERT INTO log VALUES('UPDATE OF t4', new.rowid, new.i, new.t);
+  END;
+  CREATE TRIGGER t4_trigger3 AFTER DELETE ON t4 BEGIN
+    INSERT INTO log VALUES('DELETE OF t4', old.rowid, old.i, old.t);
+  END;
+  BEGIN;
+}
+set sql ""
+for {set ii 1} {$ii < 10000} {incr ii} {
+  append sql "INSERT INTO t4 VALUES(NULL, $ii, '[number_name $ii]');"
+}
+speed_trial speed4-trigger1 10000 stmt $sql
+set sql ""
+for {set ii 1} {$ii < 20000} {incr ii 2} {
+  set ii2 [expr {$ii*2}]
+  append sql "
+    UPDATE t4 SET i = $ii2, t = '[number_name $ii2]' WHERE rowid = $ii;
+  "
+}
+speed_trial speed4-trigger2 10000 stmt $sql
+set sql ""
+for {set ii 1} {$ii < 20000} {incr ii 2} {
+  append sql "DELETE FROM t4 WHERE rowid = $ii;"
+}
+speed_trial speed4-trigger3 10000 stmt $sql
+execsql {COMMIT}
+
+# The following block contains the same tests as the above block that
+# tests triggers, with one crucial difference: no triggers are defined.
+# So the difference in speed between these tests and the preceding ones
+# is the amount of time taken to compile and execute the trigger programs.
+#
+execsql {
+  DROP TABLE t4;
+  DROP TABLE log;
+  VACUUM;
+  CREATE TABLE t4(rowid INTEGER PRIMARY KEY, i INTEGER, t TEXT);
+  BEGIN;
+}
+set sql ""
+for {set ii 1} {$ii < 10000} {incr ii} {
+  append sql "INSERT INTO t4 VALUES(NULL, $ii, '[number_name $ii]');"
+}
+speed_trial speed4-notrigger1 10000 stmt $sql
+set sql ""
+for {set ii 1} {$ii < 20000} {incr ii 2} {
+  set ii2 [expr {$ii*2}]
+  append sql "
+    UPDATE t4 SET i = $ii2, t = '[number_name $ii2]' WHERE rowid = $ii;
+  "
+}
+speed_trial speed4-notrigger2 10000 stmt $sql
+set sql ""
+for {set ii 1} {$ii < 20000} {incr ii 2} {
+  append sql "DELETE FROM t4 WHERE rowid = $ii;"
+}
+speed_trial speed4-notrigger3 10000 stmt $sql
+execsql {COMMIT}
+
+speed_trial_summary speed4
+finish_test
diff --git a/test/speed4p.explain b/test/speed4p.explain
new file mode 100644
index 0000000000000000000000000000000000000000..a713955e618a615575772749927438eb04c47b1c
--- /dev/null
+++ b/test/speed4p.explain
@@ -0,0 +1,283 @@
+# 2007 October 23
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is measuring executing speed. More specifically,
+# the focus is on the speed of:
+#
+#   * joins
+#   * views
+#   * sub-selects
+#   * triggers
+#
+# $Id: speed4p.explain,v 1.1 2008/04/16 12:57:48 drh Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+speed_trial_init speed1
+
+# Set a uniform random seed
+expr srand(0)
+
+set sqlout [open speed1.txt w]
+proc tracesql {sql} {
+  puts $::sqlout $sql\;
+}
+#db trace tracesql
+
+# The number_name procedure below converts its argment (an integer)
+# into a string which is the English-language name for that number.
+#
+# Example:
+#
+#     puts [number_name 123]   ->  "one hundred twenty three"
+#
+set ones {zero one two three four five six seven eight nine
+          ten eleven twelve thirteen fourteen fifteen sixteen seventeen
+          eighteen nineteen}
+set tens {{} ten twenty thirty forty fifty sixty seventy eighty ninety}
+proc number_name {n} {
+  if {$n>=1000} {
+    set txt "[number_name [expr {$n/1000}]] thousand"
+    set n [expr {$n%1000}]
+  } else {
+    set txt {}
+  }
+  if {$n>=100} {
+    append txt " [lindex $::ones [expr {$n/100}]] hundred"
+    set n [expr {$n%100}]
+  }
+  if {$n>=20} {
+    append txt " [lindex $::tens [expr {$n/10}]]"
+    set n [expr {$n%10}]
+  }
+  if {$n>0} {
+    append txt " [lindex $::ones $n]"
+  }
+  set txt [string trim $txt]
+  if {$txt==""} {set txt zero}
+  return $txt
+}
+
+# Summary of tests:
+#
+#   speed4p-join1: Join three tables using IPK index.
+#   speed4p-join2: Join three tables using an index.
+#   speed4p-join3: Join two tables without an index.
+#
+#   speed4p-view1:  Querying a view.
+#   speed4p-table1: Same queries as in speed4p-view1, but run directly against
+#                  the tables for comparison purposes.
+#
+#   speed4p-subselect1: A SELECT statement that uses many sub-queries..
+#
+#   speed4p-trigger1: An INSERT statement that fires a trigger.
+#   speed4p-trigger2: An UPDATE statement that fires a trigger.
+#   speed4p-trigger3: A DELETE statement that fires a trigger.
+#   speed4p-notrigger1: Same operation as trigger1, but without the trigger.
+#   speed4p-notrigger2:        "          trigger2           "
+#   speed4p-notrigger3:        "          trigger3           "
+#
+
+# Set up the schema. Each of the tables t1, t2 and t3 contain 50,000 rows.
+# This creates a database of around 16MB.
+execsql {
+  PRAGMA page_size=1024;
+  PRAGMA cache_size=8192;
+  PRAGMA locking_mode=EXCLUSIVE;
+  BEGIN;
+  CREATE TABLE t1(rowid INTEGER PRIMARY KEY, i INTEGER, t TEXT);
+  CREATE TABLE t2(rowid INTEGER PRIMARY KEY, i INTEGER, t TEXT);
+  CREATE TABLE t3(rowid INTEGER PRIMARY KEY, i INTEGER, t TEXT);
+
+  CREATE VIEW v1 AS SELECT rowid, i, t FROM t1;
+  CREATE VIEW v2 AS SELECT rowid, i, t FROM t2;
+  CREATE VIEW v3 AS SELECT rowid, i, t FROM t3;
+}
+for {set jj 1} {$jj <= 3} {incr jj} {
+  set stmt [string map "%T% t$jj" {INSERT INTO %T% VALUES(NULL, $i, $t)}]
+  for {set ii 0} {$ii < 50000} {incr ii} {
+    set i [expr {int(rand()*50000)}]
+    set t [number_name $i]
+    execsql $stmt
+  }
+}
+execsql {
+  CREATE INDEX i1 ON t1(t);
+  CREATE INDEX i2 ON t2(t);
+  CREATE INDEX i3 ON t3(t);
+  COMMIT;
+}
+
+# Before running these tests, disable the compiled statement cache built into
+# the Tcl interface. This is because we want to test the speed of SQL
+# compilation as well as execution.
+#
+db cache size 0
+
+# Join t1, t2, t3 on IPK.
+set sql "SELECT * FROM t1, t2, t3 WHERE t1.oid = t2.oid AND t2.oid = t3.oid"
+explain $sql
+speed_trial speed4p-join1 50000 row $sql
+
+# Join t1, t2, t3 on the non-IPK index.
+set sql "SELECT * FROM t1, t2, t3 WHERE t1.t = t2.t AND t2.t = t3.t"
+explain $sql
+speed_trial speed4p-join2 50000 row $sql
+
+# Run 10000 simple queries against the views.
+set script {
+  for {set ii 1} {$ii < 10000} {incr ii} {
+    set v [expr {$ii*3}]
+    set t [expr {$ii%3+1}]
+    db eval "SELECT * FROM v$t WHERE rowid = \$v"
+  }
+}
+explain {SELECT * FROm v1 WHERE rowid=$v}
+speed_trial_tcl speed4p-view1 10000 stmt $script
+
+# Run the same 10000 simple queries as in the previous test case against
+# the underlying tables. The compiled vdbe programs should be identical, so
+# the only difference in running time is the extra time taken to compile
+# the view definitions.
+#
+set script {
+  for {set ii 1} {$ii < 10000} {incr ii} {
+    set v [expr {$ii*3}]
+    set t [expr {$ii%3+1}]
+    db eval "SELECT t FROM t$t WHERE rowid = \$v"
+  }
+}
+explain {SELECT * FROM t1 WHERE rowid=$v}
+speed_trial_tcl speed4p-table1 10000 stmt $script
+
+# Run a SELECT that uses sub-queries 10000 times. A total of 30000 sub-selects.
+#
+set script {
+  for {set ii 1} {$ii < 10000} {incr ii} {
+    set v [expr {$ii*3}]
+    db eval {
+      SELECT (SELECT t FROM t1 WHERE rowid = $v), 
+             (SELECT t FROM t2 WHERE rowid = $v), 
+             (SELECT t FROM t3 WHERE rowid = $v)
+    }
+  }
+}
+explain {
+      SELECT (SELECT t FROM t1 WHERE rowid = $v), 
+             (SELECT t FROM t2 WHERE rowid = $v), 
+             (SELECT t FROM t3 WHERE rowid = $v)
+}
+speed_trial_tcl speed4p-subselect1 10000 stmt $script
+
+# The following block tests the speed of some DML statements that cause
+# triggers to fire.
+#
+execsql {
+  CREATE TABLE log(op TEXT, r INTEGER, i INTEGER, t TEXT);
+  CREATE TABLE t4(rowid INTEGER PRIMARY KEY, i INTEGER, t TEXT);
+  CREATE TRIGGER t4_trigger1 AFTER INSERT ON t4 BEGIN
+    INSERT INTO log VALUES('INSERT INTO t4', new.rowid, new.i, new.t);
+  END;
+  CREATE TRIGGER t4_trigger2 AFTER UPDATE ON t4 BEGIN
+    INSERT INTO log VALUES('UPDATE OF t4', new.rowid, new.i, new.t);
+  END;
+  CREATE TRIGGER t4_trigger3 AFTER DELETE ON t4 BEGIN
+    INSERT INTO log VALUES('DELETE OF t4', old.rowid, old.i, old.t);
+  END;
+  BEGIN;
+}
+set list {}
+for {set ii 1} {$ii < 10000} {incr ii} {
+  lappend list $ii [number_name $ii]
+}
+set script {
+  foreach {ii name} $::list {
+    db eval {INSERT INTO t4 VALUES(NULL, $ii, $name)}
+  }
+}
+explain {INSERT INTO t4 VALUES(NULL, $ii, $name)}
+speed_trial_tcl speed4p-trigger1 10000 stmt $script
+
+set list {}
+for {set ii 1} {$ii < 20000} {incr ii 2} {
+  set ii2 [expr {$ii*2}]
+  lappend list $ii $ii2 [number_name $ii2]
+}
+set script {
+  foreach {ii ii2 name} $::list {
+    db eval {
+      UPDATE t4 SET i = $ii2, t = $name WHERE rowid = $ii;
+    }
+  }
+}
+explain {UPDATE t4 SET i = $ii2, t = $name WHERE rowid = $ii}
+speed_trial_tcl speed4p-trigger2 10000 stmt $script
+
+set script {
+  for {set ii 1} {$ii < 20000} {incr ii 2} {
+    db eval {DELETE FROM t4 WHERE rowid = $ii}
+  }
+}
+explain {DELETE FROM t4 WHERE rowid = $ii}
+speed_trial_tcl speed4p-trigger3 10000 stmt $script
+execsql {COMMIT}
+
+# The following block contains the same tests as the above block that
+# tests triggers, with one crucial difference: no triggers are defined.
+# So the difference in speed between these tests and the preceding ones
+# is the amount of time taken to compile and execute the trigger programs.
+#
+execsql {
+  DROP TABLE t4;
+  DROP TABLE log;
+  VACUUM;
+  CREATE TABLE t4(rowid INTEGER PRIMARY KEY, i INTEGER, t TEXT);
+  BEGIN;
+}
+set list {}
+for {set ii 1} {$ii < 10000} {incr ii} {
+  lappend list $ii [number_name $ii]
+}
+set script {
+  foreach {ii name} $::list {
+    db eval {INSERT INTO t4 VALUES(NULL, $ii, $name);}
+  }
+}
+explain {INSERT INTO t4 VALUES(NULL, $ii, $name)}
+speed_trial_tcl speed4p-notrigger1 10000 stmt $script
+
+set list {}
+for {set ii 1} {$ii < 20000} {incr ii 2} {
+  set ii2 [expr {$ii*2}]
+  lappend list $ii $ii2 [number_name $ii2]
+}
+set script {
+  foreach {ii ii2 name} $::list {
+    db eval {
+      UPDATE t4 SET i = $ii2, t = $name WHERE rowid = $ii;
+    }
+  }
+}
+explain {UPDATE t4 SET i = $ii2, t = $name WHERE rowid = $ii}
+speed_trial_tcl speed4p-notrigger2 10000 stmt $script
+
+set script {
+  for {set ii 1} {$ii < 20000} {incr ii 2} {
+    db eval {DELETE FROM t4 WHERE rowid = $ii}
+  }
+}
+explain {DELETE FROM t4 WHERE rowid = $ii}
+speed_trial_tcl speed4p-notrigger3 10000 stmt $script
+execsql {COMMIT}
+
+speed_trial_summary speed4
+finish_test
diff --git a/test/speed4p.test b/test/speed4p.test
new file mode 100644
index 0000000000000000000000000000000000000000..78ff9138db7e1192c749c15aa224d231d2ebde21
--- /dev/null
+++ b/test/speed4p.test
@@ -0,0 +1,291 @@
+# 2007 October 23
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is measuring executing speed. More specifically,
+# the focus is on the speed of:
+#
+#   * joins
+#   * views
+#   * sub-selects
+#   * triggers
+#
+# $Id: speed4p.test,v 1.4 2008/04/10 13:32:37 drh Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+speed_trial_init speed1
+
+# Set a uniform random seed
+expr srand(0)
+
+set sqlout [open speed1.txt w]
+proc tracesql {sql} {
+  puts $::sqlout $sql\;
+}
+#db trace tracesql
+
+# The number_name procedure below converts its argment (an integer)
+# into a string which is the English-language name for that number.
+#
+# Example:
+#
+#     puts [number_name 123]   ->  "one hundred twenty three"
+#
+set ones {zero one two three four five six seven eight nine
+          ten eleven twelve thirteen fourteen fifteen sixteen seventeen
+          eighteen nineteen}
+set tens {{} ten twenty thirty forty fifty sixty seventy eighty ninety}
+proc number_name {n} {
+  if {$n>=1000} {
+    set txt "[number_name [expr {$n/1000}]] thousand"
+    set n [expr {$n%1000}]
+  } else {
+    set txt {}
+  }
+  if {$n>=100} {
+    append txt " [lindex $::ones [expr {$n/100}]] hundred"
+    set n [expr {$n%100}]
+  }
+  if {$n>=20} {
+    append txt " [lindex $::tens [expr {$n/10}]]"
+    set n [expr {$n%10}]
+  }
+  if {$n>0} {
+    append txt " [lindex $::ones $n]"
+  }
+  set txt [string trim $txt]
+  if {$txt==""} {set txt zero}
+  return $txt
+}
+
+# Summary of tests:
+#
+#   speed4p-join1: Join three tables using IPK index.
+#   speed4p-join2: Join three tables using an index.
+#   speed4p-join3: Join two tables without an index.
+#
+#   speed4p-view1:  Querying a view.
+#   speed4p-table1: Same queries as in speed4p-view1, but run directly against
+#                  the tables for comparison purposes.
+#
+#   speed4p-subselect1: A SELECT statement that uses many sub-queries..
+#
+#   speed4p-trigger1: An INSERT statement that fires a trigger.
+#   speed4p-trigger2: An UPDATE statement that fires a trigger.
+#   speed4p-trigger3: A DELETE statement that fires a trigger.
+#   speed4p-notrigger1: Same operation as trigger1, but without the trigger.
+#   speed4p-notrigger2:        "          trigger2           "
+#   speed4p-notrigger3:        "          trigger3           "
+#
+
+# Set up the schema. Each of the tables t1, t2 and t3 contain 50,000 rows.
+# This creates a database of around 16MB.
+execsql {
+  PRAGMA page_size=1024;
+  PRAGMA cache_size=8192;
+  PRAGMA locking_mode=EXCLUSIVE;
+  BEGIN;
+  CREATE TABLE t1(rowid INTEGER PRIMARY KEY, i INTEGER, t TEXT);
+  CREATE TABLE t2(rowid INTEGER PRIMARY KEY, i INTEGER, t TEXT);
+  CREATE TABLE t3(rowid INTEGER PRIMARY KEY, i INTEGER, t TEXT);
+
+  CREATE VIEW v1 AS SELECT rowid, i, t FROM t1;
+  CREATE VIEW v2 AS SELECT rowid, i, t FROM t2;
+  CREATE VIEW v3 AS SELECT rowid, i, t FROM t3;
+}
+for {set jj 1} {$jj <= 3} {incr jj} {
+  set stmt [string map "%T% t$jj" {INSERT INTO %T% VALUES(NULL, $i, $t)}]
+  for {set ii 0} {$ii < 50000} {incr ii} {
+    set i [expr {int(rand()*50000)}]
+    set t [number_name $i]
+    execsql $stmt
+  }
+}
+execsql {
+  CREATE INDEX i1 ON t1(t);
+  CREATE INDEX i2 ON t2(t);
+  CREATE INDEX i3 ON t3(t);
+  COMMIT;
+}
+
+# Join t1, t2, t3 on IPK.
+set sql "SELECT * FROM t1, t2, t3 WHERE t1.oid = t2.oid AND t2.oid = t3.oid"
+speed_trial speed4p-join1 50000 row $sql
+
+# Join t1, t2, t3 on the non-IPK index.
+set sql "SELECT * FROM t1, t2, t3 WHERE t1.t = t2.t AND t2.t = t3.t"
+speed_trial speed4p-join2 50000 row $sql
+
+# Run 10000 simple queries against the views.
+set script {
+  for {set ii 1} {$ii < 10000} {incr ii} {
+    set v [expr {$ii*3}]
+    set t [expr {$ii%3+1}]
+    db eval "SELECT * FROM v$t WHERE rowid = \$v"
+  }
+}
+speed_trial_tcl speed4p-view1 10000 stmt $script
+
+# Run the same 10000 simple queries as in the previous test case against
+# the underlying tables. The compiled vdbe programs should be identical, so
+# the only difference in running time is the extra time taken to compile
+# the view definitions.
+#
+set script {
+  for {set ii 1} {$ii < 10000} {incr ii} {
+    set v [expr {$ii*3}]
+    set t [expr {$ii%3+1}]
+    db eval "SELECT t FROM t$t WHERE rowid = \$v"
+  }
+}
+speed_trial_tcl speed4p-table1 10000 stmt $script
+
+# Run a SELECT that uses sub-queries 10000 times. A total of 30000 sub-selects.
+#
+set script {
+  for {set ii 1} {$ii < 10000} {incr ii} {
+    set v [expr {$ii*3}]
+    db eval {
+      SELECT (SELECT t FROM t1 WHERE rowid = $v), 
+             (SELECT t FROM t2 WHERE rowid = $v), 
+             (SELECT t FROM t3 WHERE rowid = $v)
+    }
+  }
+}
+speed_trial_tcl speed4p-subselect1 10000 stmt $script
+
+# Single-row updates performance.
+#
+set script {
+  db eval BEGIN
+  for {set ii 1} {$ii < 10000} {incr ii} {
+    db eval {UPDATE t1 SET i=i+1 WHERE rowid=$ii}
+  }
+  db eval COMMIT
+}
+speed_trial_tcl speed4p-rowid-update 10000 stmt $script
+
+
+db eval {
+   CREATE TABLE t5(t TEXT PRIMARY KEY, i INTEGER);
+}
+speed_trial speed4p-insert-ignore 50000 row {
+  INSERT OR IGNORE INTO t5 SELECT t, i FROM t1;
+}
+
+set list [db eval {SELECT t FROM t5}]
+set script {
+  db eval BEGIN
+  foreach t $::list {
+    db eval {UPDATE t5 SET i=i+1 WHERE t=$t}
+  }
+  db eval COMMIT
+}
+speed_trial_tcl speed4p-unique-update [llength $list] stmt $script
+
+# The following block tests the speed of some DML statements that cause
+# triggers to fire.
+#
+execsql {
+  CREATE TABLE log(op TEXT, r INTEGER, i INTEGER, t TEXT);
+  CREATE TABLE t4(rowid INTEGER PRIMARY KEY, i INTEGER, t TEXT);
+  CREATE TRIGGER t4_trigger1 AFTER INSERT ON t4 BEGIN
+    INSERT INTO log VALUES('INSERT INTO t4', new.rowid, new.i, new.t);
+  END;
+  CREATE TRIGGER t4_trigger2 AFTER UPDATE ON t4 BEGIN
+    INSERT INTO log VALUES('UPDATE OF t4', new.rowid, new.i, new.t);
+  END;
+  CREATE TRIGGER t4_trigger3 AFTER DELETE ON t4 BEGIN
+    INSERT INTO log VALUES('DELETE OF t4', old.rowid, old.i, old.t);
+  END;
+  BEGIN;
+}
+set list {}
+for {set ii 1} {$ii < 10000} {incr ii} {
+  lappend list $ii [number_name $ii]
+}
+set script {
+  foreach {ii name} $::list {
+    db eval {INSERT INTO t4 VALUES(NULL, $ii, $name)}
+  }
+}
+speed_trial_tcl speed4p-trigger1 10000 stmt $script
+
+set list {}
+for {set ii 1} {$ii < 20000} {incr ii 2} {
+  set ii2 [expr {$ii*2}]
+  lappend list $ii $ii2 [number_name $ii2]
+}
+set script {
+  foreach {ii ii2 name} $::list {
+    db eval {
+      UPDATE t4 SET i = $ii2, t = $name WHERE rowid = $ii;
+    }
+  }
+}
+speed_trial_tcl speed4p-trigger2 10000 stmt $script
+
+set script {
+  for {set ii 1} {$ii < 20000} {incr ii 2} {
+    db eval {DELETE FROM t4 WHERE rowid = $ii}
+  }
+}
+speed_trial_tcl speed4p-trigger3 10000 stmt $script
+execsql {COMMIT}
+
+# The following block contains the same tests as the above block that
+# tests triggers, with one crucial difference: no triggers are defined.
+# So the difference in speed between these tests and the preceding ones
+# is the amount of time taken to compile and execute the trigger programs.
+#
+execsql {
+  DROP TABLE t4;
+  DROP TABLE log;
+  VACUUM;
+  CREATE TABLE t4(rowid INTEGER PRIMARY KEY, i INTEGER, t TEXT);
+  BEGIN;
+}
+set list {}
+for {set ii 1} {$ii < 10000} {incr ii} {
+  lappend list $ii [number_name $ii]
+}
+set script {
+  foreach {ii name} $::list {
+    db eval {INSERT INTO t4 VALUES(NULL, $ii, $name);}
+  }
+}
+speed_trial_tcl speed4p-notrigger1 10000 stmt $script
+
+set list {}
+for {set ii 1} {$ii < 20000} {incr ii 2} {
+  set ii2 [expr {$ii*2}]
+  lappend list $ii $ii2 [number_name $ii2]
+}
+set script {
+  foreach {ii ii2 name} $::list {
+    db eval {
+      UPDATE t4 SET i = $ii2, t = $name WHERE rowid = $ii;
+    }
+  }
+}
+speed_trial_tcl speed4p-notrigger2 10000 stmt $script
+
+set script {
+  for {set ii 1} {$ii < 20000} {incr ii 2} {
+    db eval {DELETE FROM t4 WHERE rowid = $ii}
+  }
+}
+speed_trial_tcl speed4p-notrigger3 10000 stmt $script
+execsql {COMMIT}
+
+speed_trial_summary speed4
+finish_test
diff --git a/test/speedtest1.c b/test/speedtest1.c
new file mode 100644
index 0000000000000000000000000000000000000000..b0817858aeb6b587814156d49b85d92811afa063
--- /dev/null
+++ b/test/speedtest1.c
@@ -0,0 +1,2719 @@
+/*
+** A program for performance testing.
+**
+** The available command-line options are described below:
+*/
+static const char zHelp[] =
+  "Usage: %s [--options] DATABASE\n"
+  "Options:\n"
+  "  --autovacuum        Enable AUTOVACUUM mode\n"
+  "  --big-transactions  Add BEGIN/END around all large tests\n"
+  "  --cachesize N       Set PRAGMA cache_size=N. Note: N is pages, not bytes\n"
+  "  --checkpoint        Run PRAGMA wal_checkpoint after each test case\n"
+  "  --exclusive         Enable locking_mode=EXCLUSIVE\n"
+  "  --explain           Like --sqlonly but with added EXPLAIN keywords\n"
+  "  --fullfsync         Enable fullfsync=TRUE\n"
+  "  --heap SZ MIN       Memory allocator uses SZ bytes & min allocation MIN\n"
+  "  --incrvacuum        Enable incremenatal vacuum mode\n"
+  "  --journal M         Set the journal_mode to M\n"
+  "  --key KEY           Set the encryption key to KEY\n"
+  "  --lookaside N SZ    Configure lookaside for N slots of SZ bytes each\n"
+  "  --memdb             Use an in-memory database\n"
+  "  --mmap SZ           MMAP the first SZ bytes of the database file\n"
+  "  --multithread       Set multithreaded mode\n"
+  "  --nomemstat         Disable memory statistics\n"
+  "  --nomutex           Open db with SQLITE_OPEN_NOMUTEX\n"
+  "  --nosync            Set PRAGMA synchronous=OFF\n"
+  "  --notnull           Add NOT NULL constraints to table columns\n"
+  "  --output FILE       Store SQL output in FILE\n"
+  "  --pagesize N        Set the page size to N\n"
+  "  --pcache N SZ       Configure N pages of pagecache each of size SZ bytes\n"
+  "  --primarykey        Use PRIMARY KEY instead of UNIQUE where appropriate\n"
+  "  --repeat N          Repeat each SELECT N times (default: 1)\n"
+  "  --reprepare         Reprepare each statement upon every invocation\n"
+  "  --reserve N         Reserve N bytes on each database page\n"
+  "  --script FILE       Write an SQL script for the test into FILE\n"
+  "  --serialized        Set serialized threading mode\n"
+  "  --singlethread      Set single-threaded mode - disables all mutexing\n"
+  "  --sqlonly           No-op.  Only show the SQL that would have been run.\n"
+  "  --shrink-memory     Invoke sqlite3_db_release_memory() frequently.\n"
+  "  --size N            Relative test size.  Default=100\n"
+  "  --strict            Use STRICT table where appropriate\n"
+  "  --stats             Show statistics at the end\n"
+  "  --stmtscanstatus    Activate SQLITE_DBCONFIG_STMT_SCANSTATUS\n"
+  "  --temp N            N from 0 to 9.  0: no temp table. 9: all temp tables\n"
+  "  --testset T         Run test-set T (main, cte, rtree, orm, fp, debug)\n"
+  "  --trace             Turn on SQL tracing\n"
+  "  --threads N         Use up to N threads for sorting\n"
+  "  --utf16be           Set text encoding to UTF-16BE\n"
+  "  --utf16le           Set text encoding to UTF-16LE\n"
+  "  --verify            Run additional verification steps\n"
+  "  --vfs NAME          Use the given (preinstalled) VFS\n"
+  "  --without-rowid     Use WITHOUT ROWID where appropriate\n"
+;
+
+#include "sqlite3.h"
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <ctype.h>
+#ifndef _WIN32
+# include <unistd.h>
+#else
+# include <io.h>
+#endif
+#define ISSPACE(X) isspace((unsigned char)(X))
+#define ISDIGIT(X) isdigit((unsigned char)(X))
+
+#if SQLITE_VERSION_NUMBER<3005000
+# define sqlite3_int64 sqlite_int64
+#endif
+
+typedef sqlite3_uint64 u64;
+
+/*
+** State structure for a Hash hash in progress
+*/
+typedef struct HashContext HashContext;
+struct HashContext {
+  unsigned char isInit;          /* True if initialized */
+  unsigned char i, j;            /* State variables */
+  unsigned char s[256];          /* State variables */
+  unsigned char r[32];           /* Result */
+};
+
+
+/* All global state is held in this structure */
+static struct Global {
+  sqlite3 *db;               /* The open database connection */
+  sqlite3_stmt *pStmt;       /* Current SQL statement */
+  sqlite3_int64 iStart;      /* Start-time for the current test */
+  sqlite3_int64 iTotal;      /* Total time */
+  int bWithoutRowid;         /* True for --without-rowid */
+  int bReprepare;            /* True to reprepare the SQL on each rerun */
+  int bSqlOnly;              /* True to print the SQL once only */
+  int bExplain;              /* Print SQL with EXPLAIN prefix */
+  int bVerify;               /* Try to verify that results are correct */
+  int bMemShrink;            /* Call sqlite3_db_release_memory() often */
+  int eTemp;                 /* 0: no TEMP.  9: always TEMP. */
+  int szTest;                /* Scale factor for test iterations */
+  int nRepeat;               /* Repeat selects this many times */
+  int doCheckpoint;          /* Run PRAGMA wal_checkpoint after each trans */
+  int nReserve;              /* Reserve bytes */
+  int stmtScanStatus;        /* True to activate Stmt ScanStatus reporting */
+  int doBigTransactions;     /* Enable transactions on tests 410 and 510 */
+  const char *zWR;           /* Might be WITHOUT ROWID */
+  const char *zNN;           /* Might be NOT NULL */
+  const char *zPK;           /* Might be UNIQUE or PRIMARY KEY */
+  unsigned int x, y;         /* Pseudo-random number generator state */
+  u64 nResByte;              /* Total number of result bytes */
+  int nResult;               /* Size of the current result */
+  char zResult[3000];        /* Text of the current result */
+  FILE *pScript;             /* Write an SQL script into this file */
+#ifndef SPEEDTEST_OMIT_HASH
+  FILE *hashFile;            /* Store all hash results in this file */
+  HashContext hash;          /* Hash of all output */
+#endif
+} g;
+
+/* Return " TEMP" or "", as appropriate for creating a table.
+*/
+static const char *isTemp(int N){
+  return g.eTemp>=N ? " TEMP" : "";
+}
+
+/* Print an error message and exit */
+static void fatal_error(const char *zMsg, ...){
+  va_list ap;
+  va_start(ap, zMsg);
+  vfprintf(stderr, zMsg, ap);
+  va_end(ap);
+  exit(1);
+}
+
+#ifndef SPEEDTEST_OMIT_HASH
+/****************************************************************************
+** Hash algorithm used to verify that compilation is not miscompiled
+** in such a was as to generate an incorrect result.
+*/
+
+/*
+** Initialize a new hash.  iSize determines the size of the hash
+** in bits and should be one of 224, 256, 384, or 512.  Or iSize
+** can be zero to use the default hash size of 256 bits.
+*/
+static void HashInit(void){
+  unsigned int k;
+  g.hash.i = 0;
+  g.hash.j = 0;
+  for(k=0; k<256; k++) g.hash.s[k] = k;
+}
+
+/*
+** Make consecutive calls to the HashUpdate function to add new content
+** to the hash
+*/
+static void HashUpdate(
+  const unsigned char *aData,
+  unsigned int nData
+){
+  unsigned char t;
+  unsigned char i = g.hash.i;
+  unsigned char j = g.hash.j;
+  unsigned int k;
+  if( g.hashFile ) fwrite(aData, 1, nData, g.hashFile);
+  for(k=0; k<nData; k++){
+    j += g.hash.s[i] + aData[k];
+    t = g.hash.s[j];
+    g.hash.s[j] = g.hash.s[i];
+    g.hash.s[i] = t;
+    i++;
+  }
+  g.hash.i = i;
+  g.hash.j = j;
+}
+
+/*
+** After all content has been added, invoke HashFinal() to compute
+** the final hash.  The hash result is stored in g.hash.r[].
+*/
+static void HashFinal(void){
+  unsigned int k;
+  unsigned char t, i, j;
+  i = g.hash.i;
+  j = g.hash.j;
+  for(k=0; k<32; k++){
+    i++;
+    t = g.hash.s[i];
+    j += t;
+    g.hash.s[i] = g.hash.s[j];
+    g.hash.s[j] = t;
+    t += g.hash.s[i];
+    g.hash.r[k] = g.hash.s[t];
+  }
+}
+
+/* End of the Hash hashing logic
+*****************************************************************************/
+#endif /* SPEEDTEST_OMIT_HASH */
+
+/*
+** Return the value of a hexadecimal digit.  Return -1 if the input
+** is not a hex digit.
+*/
+static int hexDigitValue(char c){
+  if( c>='0' && c<='9' ) return c - '0';
+  if( c>='a' && c<='f' ) return c - 'a' + 10;
+  if( c>='A' && c<='F' ) return c - 'A' + 10;
+  return -1;
+}
+
+/* Provide an alternative to sqlite3_stricmp() in older versions of
+** SQLite */
+#if SQLITE_VERSION_NUMBER<3007011
+# define sqlite3_stricmp strcmp
+#endif
+
+/*
+** Interpret zArg as an integer value, possibly with suffixes.
+*/
+static int integerValue(const char *zArg){
+  sqlite3_int64 v = 0;
+  static const struct { char *zSuffix; int iMult; } aMult[] = {
+    { "KiB", 1024 },
+    { "MiB", 1024*1024 },
+    { "GiB", 1024*1024*1024 },
+    { "KB",  1000 },
+    { "MB",  1000000 },
+    { "GB",  1000000000 },
+    { "K",   1000 },
+    { "M",   1000000 },
+    { "G",   1000000000 },
+  };
+  int i;
+  int isNeg = 0;
+  if( zArg[0]=='-' ){
+    isNeg = 1;
+    zArg++;
+  }else if( zArg[0]=='+' ){
+    zArg++;
+  }
+  if( zArg[0]=='0' && zArg[1]=='x' ){
+    int x;
+    zArg += 2;
+    while( (x = hexDigitValue(zArg[0]))>=0 ){
+      v = (v<<4) + x;
+      zArg++;
+    }
+  }else{
+    while( isdigit(zArg[0]) ){
+      v = v*10 + zArg[0] - '0';
+      zArg++;
+    }
+  }
+  for(i=0; i<sizeof(aMult)/sizeof(aMult[0]); i++){
+    if( sqlite3_stricmp(aMult[i].zSuffix, zArg)==0 ){
+      v *= aMult[i].iMult;
+      break;
+    }
+  }
+  if( v>0x7fffffff ) fatal_error("parameter too large - max 2147483648");
+  return (int)(isNeg? -v : v);
+}
+
+/* Return the current wall-clock time, in milliseconds */
+sqlite3_int64 speedtest1_timestamp(void){
+#if SQLITE_VERSION_NUMBER<3005000
+  return 0;
+#else
+  static sqlite3_vfs *clockVfs = 0;
+  sqlite3_int64 t;
+  if( clockVfs==0 ) clockVfs = sqlite3_vfs_find(0);
+#if SQLITE_VERSION_NUMBER>=3007000
+  if( clockVfs->iVersion>=2 && clockVfs->xCurrentTimeInt64!=0 ){
+    clockVfs->xCurrentTimeInt64(clockVfs, &t);
+  }else
+#endif
+  {
+    double r;
+    clockVfs->xCurrentTime(clockVfs, &r);
+    t = (sqlite3_int64)(r*86400000.0);
+  }
+  return t;
+#endif
+}
+
+/* Return a pseudo-random unsigned integer */
+unsigned int speedtest1_random(void){
+  g.x = (g.x>>1) ^ ((1+~(g.x&1)) & 0xd0000001);
+  g.y = g.y*1103515245 + 12345;
+  return g.x ^ g.y;
+}
+
+/* Map the value in within the range of 1...limit into another
+** number in a way that is chatic and invertable.
+*/
+unsigned swizzle(unsigned in, unsigned limit){
+  unsigned out = 0;
+  while( limit ){
+    out = (out<<1) | (in&1);
+    in >>= 1;
+    limit >>= 1;
+  }
+  return out;
+}
+
+/* Round up a number so that it is a power of two minus one
+*/
+unsigned roundup_allones(unsigned limit){
+  unsigned m = 1;
+  while( m<limit ) m = (m<<1)+1;
+  return m;
+}
+
+/* The speedtest1_numbername procedure below converts its argment (an integer)
+** into a string which is the English-language name for that number.
+** The returned string should be freed with sqlite3_free().
+**
+** Example:
+**
+**     speedtest1_numbername(123)   ->  "one hundred twenty three"
+*/
+int speedtest1_numbername(unsigned int n, char *zOut, int nOut){
+  static const char *ones[] = {  "zero", "one", "two", "three", "four", "five", 
+                  "six", "seven", "eight", "nine", "ten", "eleven", "twelve", 
+                  "thirteen", "fourteen", "fifteen", "sixteen", "seventeen",
+                  "eighteen", "nineteen" };
+  static const char *tens[] = { "", "ten", "twenty", "thirty", "forty",
+                 "fifty", "sixty", "seventy", "eighty", "ninety" };
+  int i = 0;
+
+  if( n>=1000000000 ){
+    i += speedtest1_numbername(n/1000000000, zOut+i, nOut-i);
+    sqlite3_snprintf(nOut-i, zOut+i, " billion");
+    i += (int)strlen(zOut+i);
+    n = n % 1000000000;
+  }
+  if( n>=1000000 ){
+    if( i && i<nOut-1 ) zOut[i++] = ' ';
+    i += speedtest1_numbername(n/1000000, zOut+i, nOut-i);
+    sqlite3_snprintf(nOut-i, zOut+i, " million");
+    i += (int)strlen(zOut+i);
+    n = n % 1000000;
+  }
+  if( n>=1000 ){
+    if( i && i<nOut-1 ) zOut[i++] = ' ';
+    i += speedtest1_numbername(n/1000, zOut+i, nOut-i);
+    sqlite3_snprintf(nOut-i, zOut+i, " thousand");
+    i += (int)strlen(zOut+i);
+    n = n % 1000;
+  }
+  if( n>=100 ){
+    if( i && i<nOut-1 ) zOut[i++] = ' ';
+    sqlite3_snprintf(nOut-i, zOut+i, "%s hundred", ones[n/100]);
+    i += (int)strlen(zOut+i);
+    n = n % 100;
+  }
+  if( n>=20 ){
+    if( i && i<nOut-1 ) zOut[i++] = ' ';
+    sqlite3_snprintf(nOut-i, zOut+i, "%s", tens[n/10]);
+    i += (int)strlen(zOut+i);
+    n = n % 10;
+  }
+  if( n>0 ){
+    if( i && i<nOut-1 ) zOut[i++] = ' ';
+    sqlite3_snprintf(nOut-i, zOut+i, "%s", ones[n]);
+    i += (int)strlen(zOut+i);
+  }
+  if( i==0 ){
+    sqlite3_snprintf(nOut-i, zOut+i, "zero");
+    i += (int)strlen(zOut+i);
+  }
+  return i;
+}
+
+
+/* Start a new test case */
+#define NAMEWIDTH 60
+static const char zDots[] =
+  ".......................................................................";
+static int iTestNumber = 0;  /* Current test # for begin/end_test(). */
+void speedtest1_begin_test(int iTestNum, const char *zTestName, ...){
+  int n = (int)strlen(zTestName);
+  char *zName;
+  va_list ap;
+  iTestNumber = iTestNum;
+  va_start(ap, zTestName);
+  zName = sqlite3_vmprintf(zTestName, ap);
+  va_end(ap);
+  n = (int)strlen(zName);
+  if( n>NAMEWIDTH ){
+    zName[NAMEWIDTH] = 0;
+    n = NAMEWIDTH;
+  }
+  if( g.pScript ){
+    fprintf(g.pScript,"-- begin test %d %.*s\n", iTestNumber, n, zName)
+      /* maintenance reminder: ^^^ code in ext/wasm expects %d to be
+      ** field #4 (as in: cut -d' ' -f4). */;
+  }
+  if( g.bSqlOnly ){
+    printf("/* %4d - %s%.*s */\n", iTestNum, zName, NAMEWIDTH-n, zDots);
+  }else{
+    printf("%4d - %s%.*s ", iTestNum, zName, NAMEWIDTH-n, zDots);
+    fflush(stdout);
+  }
+  sqlite3_free(zName);
+  g.nResult = 0;
+  g.iStart = speedtest1_timestamp();
+  g.x = 0xad131d0b;
+  g.y = 0x44f9eac8;
+}
+
+/* Forward reference */
+void speedtest1_exec(const char*,...);
+
+/* Complete a test case */
+void speedtest1_end_test(void){
+  sqlite3_int64 iElapseTime = speedtest1_timestamp() - g.iStart;
+  if( g.doCheckpoint ) speedtest1_exec("PRAGMA wal_checkpoint;");
+  assert( iTestNumber > 0 );
+  if( g.pScript ){
+    fprintf(g.pScript,"-- end test %d\n", iTestNumber);
+  }
+  if( !g.bSqlOnly ){
+    g.iTotal += iElapseTime;
+    printf("%4d.%03ds\n", (int)(iElapseTime/1000), (int)(iElapseTime%1000));
+  }
+  if( g.pStmt ){
+    sqlite3_finalize(g.pStmt);
+    g.pStmt = 0;
+  }
+  iTestNumber = 0;
+}
+
+/* Report end of testing */
+void speedtest1_final(void){
+  if( !g.bSqlOnly ){
+    printf("       TOTAL%.*s %4d.%03ds\n", NAMEWIDTH-5, zDots,
+           (int)(g.iTotal/1000), (int)(g.iTotal%1000));
+  }
+  if( g.bVerify ){
+#ifndef SPEEDTEST_OMIT_HASH
+    int i;
+#endif
+    printf("Verification Hash: %llu ", g.nResByte);
+#ifndef SPEEDTEST_OMIT_HASH
+    HashUpdate((const unsigned char*)"\n", 1);
+    HashFinal();
+    for(i=0; i<24; i++){
+      printf("%02x", g.hash.r[i]);
+    }
+    if( g.hashFile && g.hashFile!=stdout ) fclose(g.hashFile);
+#endif
+    printf("\n");
+  }
+}
+
+/* Print an SQL statement to standard output */
+static void printSql(const char *zSql){
+  int n = (int)strlen(zSql);
+  while( n>0 && (zSql[n-1]==';' || ISSPACE(zSql[n-1])) ){ n--; }
+  if( g.bExplain ) printf("EXPLAIN ");
+  printf("%.*s;\n", n, zSql);
+  if( g.bExplain
+#if SQLITE_VERSION_NUMBER>=3007017 
+   && ( sqlite3_strglob("CREATE *", zSql)==0
+     || sqlite3_strglob("DROP *", zSql)==0
+     || sqlite3_strglob("ALTER *", zSql)==0
+      )
+#endif
+  ){
+    printf("%.*s;\n", n, zSql);
+  }
+}
+
+/* Shrink memory used, if appropriate and if the SQLite version is capable
+** of doing so.
+*/
+void speedtest1_shrink_memory(void){
+#if SQLITE_VERSION_NUMBER>=3007010
+  if( g.bMemShrink ) sqlite3_db_release_memory(g.db);
+#endif
+}
+
+/* Run SQL */
+void speedtest1_exec(const char *zFormat, ...){
+  va_list ap;
+  char *zSql;
+  va_start(ap, zFormat);
+  zSql = sqlite3_vmprintf(zFormat, ap);
+  va_end(ap);
+  if( g.bSqlOnly ){
+    printSql(zSql);
+  }else{
+    char *zErrMsg = 0;
+    int rc;
+    if( g.pScript ){
+      fprintf(g.pScript,"%s;\n",zSql);
+    }
+    rc = sqlite3_exec(g.db, zSql, 0, 0, &zErrMsg);
+    if( zErrMsg ) fatal_error("SQL error: %s\n%s\n", zErrMsg, zSql);
+    if( rc!=SQLITE_OK ) fatal_error("exec error: %s\n", sqlite3_errmsg(g.db));
+  }
+  sqlite3_free(zSql);
+  speedtest1_shrink_memory();
+}
+
+/* Run SQL and return the first column of the first row as a string.  The
+** returned string is obtained from sqlite_malloc() and must be freed by
+** the caller.
+*/
+char *speedtest1_once(const char *zFormat, ...){
+  va_list ap;
+  char *zSql;
+  sqlite3_stmt *pStmt;
+  char *zResult = 0;
+  va_start(ap, zFormat);
+  zSql = sqlite3_vmprintf(zFormat, ap);
+  va_end(ap);
+  if( g.bSqlOnly ){
+    printSql(zSql);
+  }else{
+    int rc = sqlite3_prepare_v2(g.db, zSql, -1, &pStmt, 0);
+    if( rc ){
+      fatal_error("SQL error: %s\n", sqlite3_errmsg(g.db));
+    }
+    if( g.pScript ){
+      char *z = sqlite3_expanded_sql(pStmt);
+      fprintf(g.pScript,"%s\n",z);
+      sqlite3_free(z);
+    }
+    if( sqlite3_step(pStmt)==SQLITE_ROW ){
+      const char *z = (const char*)sqlite3_column_text(pStmt, 0);
+      if( z ) zResult = sqlite3_mprintf("%s", z);
+    }
+    sqlite3_finalize(pStmt);
+  }
+  sqlite3_free(zSql);
+  speedtest1_shrink_memory();
+  return zResult;
+}
+
+/* Prepare an SQL statement */
+void speedtest1_prepare(const char *zFormat, ...){
+  va_list ap;
+  char *zSql;
+  va_start(ap, zFormat);
+  zSql = sqlite3_vmprintf(zFormat, ap);
+  va_end(ap);
+  if( g.bSqlOnly ){
+    printSql(zSql);
+  }else{
+    int rc;
+    if( g.pStmt ) sqlite3_finalize(g.pStmt);
+    rc = sqlite3_prepare_v2(g.db, zSql, -1, &g.pStmt, 0);
+    if( rc ){
+      fatal_error("SQL error: %s\n", sqlite3_errmsg(g.db));
+    }
+  }
+  sqlite3_free(zSql);
+}
+
+/* Run an SQL statement previously prepared */
+void speedtest1_run(void){
+  int i, n, len;
+  if( g.bSqlOnly ) return;
+  assert( g.pStmt );
+  g.nResult = 0;
+  if( g.pScript ){
+    char *z = sqlite3_expanded_sql(g.pStmt);
+    fprintf(g.pScript,"%s\n",z);
+    sqlite3_free(z);
+  }
+  while( sqlite3_step(g.pStmt)==SQLITE_ROW ){
+    n = sqlite3_column_count(g.pStmt);
+    for(i=0; i<n; i++){
+      const char *z = (const char*)sqlite3_column_text(g.pStmt, i);
+      if( z==0 ) z = "nil";
+      len = (int)strlen(z);
+#ifndef SPEEDTEST_OMIT_HASH
+      if( g.bVerify ){
+        int eType = sqlite3_column_type(g.pStmt, i);
+        unsigned char zPrefix[2];
+        zPrefix[0] = '\n';
+        zPrefix[1] = "-IFTBN"[eType];
+        if( g.nResByte ){
+          HashUpdate(zPrefix, 2);
+        }else{
+          HashUpdate(zPrefix+1, 1);
+        }
+        if( eType==SQLITE_FLOAT ){
+          /* Omit the value of floating-point results from the verification
+          ** hash.  The only thing we record is the fact that the result was
+          ** a floating-point value. */
+          g.nResByte += 2;
+        }else if( eType==SQLITE_BLOB ){
+          int nBlob = sqlite3_column_bytes(g.pStmt, i);
+          int iBlob;
+          unsigned char zChar[2];
+          const unsigned char *aBlob = sqlite3_column_blob(g.pStmt, i);
+          for(iBlob=0; iBlob<nBlob; iBlob++){
+            zChar[0] = "0123456789abcdef"[aBlob[iBlob]>>4];
+            zChar[1] = "0123456789abcdef"[aBlob[iBlob]&15];
+            HashUpdate(zChar,2);
+          }
+          g.nResByte += nBlob*2 + 2;
+        }else{
+          HashUpdate((unsigned char*)z, len);
+          g.nResByte += len + 2;
+        }
+      }
+#endif
+      if( g.nResult+len<sizeof(g.zResult)-2 ){
+        if( g.nResult>0 ) g.zResult[g.nResult++] = ' ';
+        memcpy(g.zResult + g.nResult, z, len+1);
+        g.nResult += len;
+      }
+    }
+  }
+#if SQLITE_VERSION_NUMBER>=3006001
+  if( g.bReprepare ){
+    sqlite3_stmt *pNew;
+    sqlite3_prepare_v2(g.db, sqlite3_sql(g.pStmt), -1, &pNew, 0);
+    sqlite3_finalize(g.pStmt);
+    g.pStmt = pNew;
+  }else
+#endif
+  {
+    sqlite3_reset(g.pStmt);
+  }
+  speedtest1_shrink_memory();
+}
+
+#ifndef SQLITE_OMIT_DEPRECATED
+/* The sqlite3_trace() callback function */
+static void traceCallback(void *NotUsed, const char *zSql){
+  int n = (int)strlen(zSql);
+  while( n>0 && (zSql[n-1]==';' || ISSPACE(zSql[n-1])) ) n--;
+  fprintf(stderr,"%.*s;\n", n, zSql);
+}
+#endif /* SQLITE_OMIT_DEPRECATED */
+
+/* Substitute random() function that gives the same random
+** sequence on each run, for repeatability. */
+static void randomFunc(
+  sqlite3_context *context,
+  int NotUsed,
+  sqlite3_value **NotUsed2
+){
+  sqlite3_result_int64(context, (sqlite3_int64)speedtest1_random());
+}
+
+/* Estimate the square root of an integer */
+static int est_square_root(int x){
+  int y0 = x/2;
+  int y1;
+  int n;
+  for(n=0; y0>0 && n<10; n++){
+    y1 = (y0 + x/y0)/2;
+    if( y1==y0 ) break;
+    y0 = y1;
+  }
+  return y0;
+}
+
+
+#if SQLITE_VERSION_NUMBER<3005004
+/*
+** An implementation of group_concat().  Used only when testing older
+** versions of SQLite that lack the built-in group_concat().
+*/
+struct groupConcat {
+  char *z;
+  int nAlloc;
+  int nUsed;
+};
+static void groupAppend(struct groupConcat *p, const char *z, int n){
+  if( p->nUsed+n >= p->nAlloc ){
+    int n2 = (p->nAlloc+n+1)*2;
+    char *z2 = sqlite3_realloc(p->z, n2);
+    if( z2==0 ) return;
+    p->z = z2;
+    p->nAlloc = n2;
+  }
+  memcpy(p->z+p->nUsed, z, n);
+  p->nUsed += n;
+}
+static void groupStep(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  const char *zVal;
+  struct groupConcat *p;
+  const char *zSep;
+  int nVal, nSep;
+  assert( argc==1 || argc==2 );
+  if( sqlite3_value_type(argv[0])==SQLITE_NULL ) return;
+  p= (struct groupConcat*)sqlite3_aggregate_context(context, sizeof(*p));
+
+  if( p ){
+    int firstTerm = p->nUsed==0;
+    if( !firstTerm ){
+      if( argc==2 ){
+        zSep = (char*)sqlite3_value_text(argv[1]);
+        nSep = sqlite3_value_bytes(argv[1]);
+      }else{
+        zSep = ",";
+        nSep = 1;
+      }
+      if( nSep ) groupAppend(p, zSep, nSep);
+    }
+    zVal = (char*)sqlite3_value_text(argv[0]);
+    nVal = sqlite3_value_bytes(argv[0]);
+    if( zVal ) groupAppend(p, zVal, nVal);
+  }
+}
+static void groupFinal(sqlite3_context *context){
+  struct groupConcat *p;
+  p = sqlite3_aggregate_context(context, 0);
+  if( p && p->z ){
+    p->z[p->nUsed] = 0;
+    sqlite3_result_text(context, p->z, p->nUsed, sqlite3_free);
+  }
+}
+#endif
+
+/*
+** The main and default testset
+*/
+void testset_main(void){
+  int i;                        /* Loop counter */
+  int n;                        /* iteration count */
+  int sz;                       /* Size of the tables */
+  int maxb;                     /* Maximum swizzled value */
+  unsigned x1 = 0, x2 = 0;      /* Parameters */
+  int len = 0;                  /* Length of the zNum[] string */
+  char zNum[2000];              /* A number name */
+
+  sz = n = g.szTest*500;
+  zNum[0] = 0;
+  maxb = roundup_allones(sz);
+  speedtest1_begin_test(100, "%d INSERTs into table with no index", n);
+  speedtest1_exec("BEGIN");
+  speedtest1_exec("CREATE%s TABLE z1(a INTEGER %s, b INTEGER %s, c TEXT %s);",
+                  isTemp(9), g.zNN, g.zNN, g.zNN);
+  speedtest1_prepare("INSERT INTO z1 VALUES(?1,?2,?3); --  %d times", n);
+  for(i=1; i<=n; i++){
+    x1 = swizzle(i,maxb);
+    speedtest1_numbername(x1, zNum, sizeof(zNum));
+    sqlite3_bind_int64(g.pStmt, 1, (sqlite3_int64)x1);
+    sqlite3_bind_int(g.pStmt, 2, i);
+    sqlite3_bind_text(g.pStmt, 3, zNum, -1, SQLITE_STATIC);
+    speedtest1_run();
+  }
+  speedtest1_exec("COMMIT");
+  speedtest1_end_test();
+
+
+  n = sz;
+  speedtest1_begin_test(110, "%d ordered INSERTS with one index/PK", n);
+  speedtest1_exec("BEGIN");
+  speedtest1_exec(
+     "CREATE%s TABLE z2(a INTEGER %s %s, b INTEGER %s, c TEXT %s) %s",
+     isTemp(5), g.zNN, g.zPK, g.zNN, g.zNN, g.zWR);
+  speedtest1_prepare("INSERT INTO z2 VALUES(?1,?2,?3); -- %d times", n);
+  for(i=1; i<=n; i++){
+    x1 = swizzle(i,maxb);
+    speedtest1_numbername(x1, zNum, sizeof(zNum));
+    sqlite3_bind_int(g.pStmt, 1, i);
+    sqlite3_bind_int64(g.pStmt, 2, (sqlite3_int64)x1);
+    sqlite3_bind_text(g.pStmt, 3, zNum, -1, SQLITE_STATIC);
+    speedtest1_run();
+  }
+  speedtest1_exec("COMMIT");
+  speedtest1_end_test();
+
+
+  n = sz;
+  speedtest1_begin_test(120, "%d unordered INSERTS with one index/PK", n);
+  speedtest1_exec("BEGIN");
+  speedtest1_exec(
+      "CREATE%s TABLE t3(a INTEGER %s %s, b INTEGER %s, c TEXT %s) %s",
+      isTemp(3), g.zNN, g.zPK, g.zNN, g.zNN, g.zWR);
+  speedtest1_prepare("INSERT INTO t3 VALUES(?1,?2,?3); -- %d times", n);
+  for(i=1; i<=n; i++){
+    x1 = swizzle(i,maxb);
+    speedtest1_numbername(x1, zNum, sizeof(zNum));
+    sqlite3_bind_int(g.pStmt, 2, i);
+    sqlite3_bind_int64(g.pStmt, 1, (sqlite3_int64)x1);
+    sqlite3_bind_text(g.pStmt, 3, zNum, -1, SQLITE_STATIC);
+    speedtest1_run();
+  }
+  speedtest1_exec("COMMIT");
+  speedtest1_end_test();
+
+#if SQLITE_VERSION_NUMBER<3005004
+  sqlite3_create_function(g.db, "group_concat", 1, SQLITE_UTF8, 0,
+                          0, groupStep, groupFinal);
+#endif
+
+  n = 25;
+  speedtest1_begin_test(130, "%d SELECTS, numeric BETWEEN, unindexed", n);
+  speedtest1_exec("BEGIN");
+  speedtest1_prepare(
+    "SELECT count(*), avg(b), sum(length(c)), group_concat(c) FROM z1\n"
+    " WHERE b BETWEEN ?1 AND ?2; -- %d times", n
+  );
+  for(i=1; i<=n; i++){
+    if( (i-1)%g.nRepeat==0 ){
+      x1 = speedtest1_random()%maxb;
+      x2 = speedtest1_random()%10 + sz/5000 + x1;
+    }
+    sqlite3_bind_int(g.pStmt, 1, x1);
+    sqlite3_bind_int(g.pStmt, 2, x2);
+    speedtest1_run();
+  }
+  speedtest1_exec("COMMIT");
+  speedtest1_end_test();
+
+
+  n = 10;
+  speedtest1_begin_test(140, "%d SELECTS, LIKE, unindexed", n);
+  speedtest1_exec("BEGIN");
+  speedtest1_prepare(
+    "SELECT count(*), avg(b), sum(length(c)), group_concat(c) FROM z1\n"
+    " WHERE c LIKE ?1; -- %d times", n
+  );
+  for(i=1; i<=n; i++){
+    if( (i-1)%g.nRepeat==0 ){
+      x1 = speedtest1_random()%maxb;
+      zNum[0] = '%';
+      len = speedtest1_numbername(i, zNum+1, sizeof(zNum)-2);
+      zNum[len] = '%';
+      zNum[len+1] = 0;
+    }
+    sqlite3_bind_text(g.pStmt, 1, zNum, len+1, SQLITE_STATIC);
+    speedtest1_run();
+  }
+  speedtest1_exec("COMMIT");
+  speedtest1_end_test();
+
+
+  n = 10;
+  speedtest1_begin_test(142, "%d SELECTS w/ORDER BY, unindexed", n);
+  speedtest1_exec("BEGIN");
+  speedtest1_prepare(
+    "SELECT a, b, c FROM z1 WHERE c LIKE ?1\n"
+    " ORDER BY a; -- %d times", n
+  );
+  for(i=1; i<=n; i++){
+    if( (i-1)%g.nRepeat==0 ){
+      x1 = speedtest1_random()%maxb;
+      zNum[0] = '%';
+      len = speedtest1_numbername(i, zNum+1, sizeof(zNum)-2);
+      zNum[len] = '%';
+      zNum[len+1] = 0;
+    }
+    sqlite3_bind_text(g.pStmt, 1, zNum, len+1, SQLITE_STATIC);
+    speedtest1_run();
+  }
+  speedtest1_exec("COMMIT");
+  speedtest1_end_test();
+
+  n = 10; /* g.szTest/5; */
+  speedtest1_begin_test(145, "%d SELECTS w/ORDER BY and LIMIT, unindexed", n);
+  speedtest1_exec("BEGIN");
+  speedtest1_prepare(
+    "SELECT a, b, c FROM z1 WHERE c LIKE ?1\n"
+    " ORDER BY a LIMIT 10; -- %d times", n
+  );
+  for(i=1; i<=n; i++){
+    if( (i-1)%g.nRepeat==0 ){
+      x1 = speedtest1_random()%maxb;
+      zNum[0] = '%';
+      len = speedtest1_numbername(i, zNum+1, sizeof(zNum)-2);
+      zNum[len] = '%';
+      zNum[len+1] = 0;
+    }
+    sqlite3_bind_text(g.pStmt, 1, zNum, len+1, SQLITE_STATIC);
+    speedtest1_run();
+  }
+  speedtest1_exec("COMMIT");
+  speedtest1_end_test();
+
+
+  speedtest1_begin_test(150, "CREATE INDEX five times");
+  speedtest1_exec("BEGIN;");
+  speedtest1_exec("CREATE UNIQUE INDEX t1b ON z1(b);");
+  speedtest1_exec("CREATE INDEX t1c ON z1(c);");
+  speedtest1_exec("CREATE UNIQUE INDEX t2b ON z2(b);");
+  speedtest1_exec("CREATE INDEX t2c ON z2(c DESC);");
+  speedtest1_exec("CREATE INDEX t3bc ON t3(b,c);");
+  speedtest1_exec("COMMIT;");
+  speedtest1_end_test();
+
+
+  n = sz/5;
+  speedtest1_begin_test(160, "%d SELECTS, numeric BETWEEN, indexed", n);
+  speedtest1_exec("BEGIN");
+  speedtest1_prepare(
+    "SELECT count(*), avg(b), sum(length(c)), group_concat(a) FROM z1\n"
+    " WHERE b BETWEEN ?1 AND ?2; -- %d times", n
+  );
+  for(i=1; i<=n; i++){
+    if( (i-1)%g.nRepeat==0 ){
+      x1 = speedtest1_random()%maxb;
+      x2 = speedtest1_random()%10 + sz/5000 + x1;
+    }
+    sqlite3_bind_int(g.pStmt, 1, x1);
+    sqlite3_bind_int(g.pStmt, 2, x2);
+    speedtest1_run();
+  }
+  speedtest1_exec("COMMIT");
+  speedtest1_end_test();
+
+
+  n = sz/5;
+  speedtest1_begin_test(161, "%d SELECTS, numeric BETWEEN, PK", n);
+  speedtest1_exec("BEGIN");
+  speedtest1_prepare(
+    "SELECT count(*), avg(b), sum(length(c)), group_concat(a) FROM z2\n"
+    " WHERE a BETWEEN ?1 AND ?2; -- %d times", n
+  );
+  for(i=1; i<=n; i++){
+    if( (i-1)%g.nRepeat==0 ){
+      x1 = speedtest1_random()%maxb;
+      x2 = speedtest1_random()%10 + sz/5000 + x1;
+    }
+    sqlite3_bind_int(g.pStmt, 1, x1);
+    sqlite3_bind_int(g.pStmt, 2, x2);
+    speedtest1_run();
+  }
+  speedtest1_exec("COMMIT");
+  speedtest1_end_test();
+
+
+  n = sz/5;
+  speedtest1_begin_test(170, "%d SELECTS, text BETWEEN, indexed", n);
+  speedtest1_exec("BEGIN");
+  speedtest1_prepare(
+    "SELECT count(*), avg(b), sum(length(c)), group_concat(a) FROM z1\n"
+    " WHERE c BETWEEN ?1 AND (?1||'~'); -- %d times", n
+  );
+  for(i=1; i<=n; i++){
+    if( (i-1)%g.nRepeat==0 ){
+      x1 = swizzle(i, maxb);
+      len = speedtest1_numbername(x1, zNum, sizeof(zNum)-1);
+    }
+    sqlite3_bind_text(g.pStmt, 1, zNum, len, SQLITE_STATIC);
+    speedtest1_run();
+  }
+  speedtest1_exec("COMMIT");
+  speedtest1_end_test();
+
+  n = sz;
+  speedtest1_begin_test(180, "%d INSERTS with three indexes", n);
+  speedtest1_exec("BEGIN");
+  speedtest1_exec(
+    "CREATE%s TABLE t4(\n"
+    "  a INTEGER %s %s,\n"
+    "  b INTEGER %s,\n"
+    "  c TEXT %s\n"
+    ") %s",
+    isTemp(1), g.zNN, g.zPK, g.zNN, g.zNN, g.zWR);
+  speedtest1_exec("CREATE INDEX t4b ON t4(b)");
+  speedtest1_exec("CREATE INDEX t4c ON t4(c)");
+  speedtest1_exec("INSERT INTO t4 SELECT * FROM z1");
+  speedtest1_exec("COMMIT");
+  speedtest1_end_test();
+
+  n = sz;
+  speedtest1_begin_test(190, "DELETE and REFILL one table", n);
+  speedtest1_exec("DELETE FROM z2;");
+  speedtest1_exec("INSERT INTO z2 SELECT * FROM z1;");
+  speedtest1_end_test();
+
+
+  speedtest1_begin_test(200, "VACUUM");
+  speedtest1_exec("VACUUM");
+  speedtest1_end_test();
+
+
+  speedtest1_begin_test(210, "ALTER TABLE ADD COLUMN, and query");
+  speedtest1_exec("ALTER TABLE z2 ADD COLUMN d INT DEFAULT 123");
+  speedtest1_exec("SELECT sum(d) FROM z2");
+  speedtest1_end_test();
+
+
+  n = sz/5;
+  speedtest1_begin_test(230, "%d UPDATES, numeric BETWEEN, indexed", n);
+  speedtest1_exec("BEGIN");
+  speedtest1_prepare(
+    "UPDATE z2 SET d=b*2 WHERE b BETWEEN ?1 AND ?2; -- %d times", n
+  );
+  for(i=1; i<=n; i++){
+    x1 = speedtest1_random()%maxb;
+    x2 = speedtest1_random()%10 + sz/5000 + x1;
+    sqlite3_bind_int(g.pStmt, 1, x1);
+    sqlite3_bind_int(g.pStmt, 2, x2);
+    speedtest1_run();
+  }
+  speedtest1_exec("COMMIT");
+  speedtest1_end_test();
+
+
+  n = sz;
+  speedtest1_begin_test(240, "%d UPDATES of individual rows", n);
+  speedtest1_exec("BEGIN");
+  speedtest1_prepare(
+    "UPDATE z2 SET d=b*3 WHERE a=?1; -- %d times", n
+  );
+  for(i=1; i<=n; i++){
+    x1 = speedtest1_random()%sz + 1;
+    sqlite3_bind_int(g.pStmt, 1, x1);
+    speedtest1_run();
+  }
+  speedtest1_exec("COMMIT");
+  speedtest1_end_test();
+
+  speedtest1_begin_test(250, "One big UPDATE of the whole %d-row table", sz);
+  speedtest1_exec("UPDATE z2 SET d=b*4");
+  speedtest1_end_test();
+
+
+  speedtest1_begin_test(260, "Query added column after filling");
+  speedtest1_exec("SELECT sum(d) FROM z2");
+  speedtest1_end_test();
+
+
+
+  n = sz/5;
+  speedtest1_begin_test(270, "%d DELETEs, numeric BETWEEN, indexed", n);
+  speedtest1_exec("BEGIN");
+  speedtest1_prepare(
+    "DELETE FROM z2 WHERE b BETWEEN ?1 AND ?2; -- %d times", n
+  );
+  for(i=1; i<=n; i++){
+    x1 = speedtest1_random()%maxb + 1;
+    x2 = speedtest1_random()%10 + sz/5000 + x1;
+    sqlite3_bind_int(g.pStmt, 1, x1);
+    sqlite3_bind_int(g.pStmt, 2, x2);
+    speedtest1_run();
+  }
+  speedtest1_exec("COMMIT");
+  speedtest1_end_test();
+
+
+  n = sz;
+  speedtest1_begin_test(280, "%d DELETEs of individual rows", n);
+  speedtest1_exec("BEGIN");
+  speedtest1_prepare(
+    "DELETE FROM t3 WHERE a=?1; -- %d times", n
+  );
+  for(i=1; i<=n; i++){
+    x1 = speedtest1_random()%sz + 1;
+    sqlite3_bind_int(g.pStmt, 1, x1);
+    speedtest1_run();
+  }
+  speedtest1_exec("COMMIT");
+  speedtest1_end_test();
+
+
+  speedtest1_begin_test(290, "Refill two %d-row tables using REPLACE", sz);
+  speedtest1_exec("REPLACE INTO z2(a,b,c) SELECT a,b,c FROM z1");
+  speedtest1_exec("REPLACE INTO t3(a,b,c) SELECT a,b,c FROM z1");
+  speedtest1_end_test();
+
+  speedtest1_begin_test(300, "Refill a %d-row table using (b&1)==(a&1)", sz);
+  speedtest1_exec("DELETE FROM z2;");
+  speedtest1_exec("INSERT INTO z2(a,b,c)\n"
+                  " SELECT a,b,c FROM z1  WHERE (b&1)==(a&1);");
+  speedtest1_exec("INSERT INTO z2(a,b,c)\n"
+                  " SELECT a,b,c FROM z1  WHERE (b&1)<>(a&1);");
+  speedtest1_end_test();
+
+
+  n = sz/5;
+  speedtest1_begin_test(310, "%d four-ways joins", n);
+  speedtest1_exec("BEGIN");
+  speedtest1_prepare(
+    "SELECT z1.c FROM z1, z2, t3, t4\n"
+    " WHERE t4.a BETWEEN ?1 AND ?2\n"
+    "   AND t3.a=t4.b\n"
+    "   AND z2.a=t3.b\n"
+    "   AND z1.c=z2.c;"
+  );
+  for(i=1; i<=n; i++){
+    x1 = speedtest1_random()%sz + 1;
+    x2 = speedtest1_random()%10 + x1 + 4;
+    sqlite3_bind_int(g.pStmt, 1, x1);
+    sqlite3_bind_int(g.pStmt, 2, x2);
+    speedtest1_run();
+  }
+  speedtest1_exec("COMMIT");
+  speedtest1_end_test();
+
+  speedtest1_begin_test(320, "subquery in result set", n);
+  speedtest1_prepare(
+    "SELECT sum(a), max(c),\n"
+    "       avg((SELECT a FROM z2 WHERE 5+z2.b=z1.b) AND rowid<?1), max(c)\n"
+    " FROM z1 WHERE rowid<?1;"
+  );
+  sqlite3_bind_int(g.pStmt, 1, est_square_root(g.szTest)*50);
+  speedtest1_run();
+  speedtest1_end_test();
+
+  sz = n = g.szTest*700;
+  zNum[0] = 0;
+  maxb = roundup_allones(sz/3);
+  speedtest1_begin_test(400, "%d REPLACE ops on an IPK", n);
+  speedtest1_exec("BEGIN");
+  speedtest1_exec("CREATE%s TABLE t5(a INTEGER PRIMARY KEY, b %s);",
+                  isTemp(9), g.zNN);
+  speedtest1_prepare("REPLACE INTO t5 VALUES(?1,?2); --  %d times",n);
+  for(i=1; i<=n; i++){
+    x1 = swizzle(i,maxb);
+    speedtest1_numbername(i, zNum, sizeof(zNum));
+    sqlite3_bind_int(g.pStmt, 1, (sqlite3_int64)x1);
+    sqlite3_bind_text(g.pStmt, 2, zNum, -1, SQLITE_STATIC);
+    speedtest1_run();
+  }
+  speedtest1_exec("COMMIT");
+  speedtest1_end_test();
+  speedtest1_begin_test(410, "%d SELECTS on an IPK", n);
+  if( g.doBigTransactions ){
+    /* Historical note: tests 410 and 510 have historically not used
+    ** explicit transactions. The --big-transactions flag was added
+    ** 2022-09-08 to support the WASM/OPFS build, as the run-times
+    ** approach 1 minute for each of these tests if they're not in an
+    ** explicit transaction. The run-time effect of --big-transaciions
+    ** on native builds is negligible. */
+    speedtest1_exec("BEGIN");
+  }
+  speedtest1_prepare("SELECT b FROM t5 WHERE a=?1; --  %d times",n);
+  for(i=1; i<=n; i++){
+    x1 = swizzle(i,maxb);
+    sqlite3_bind_int(g.pStmt, 1, (sqlite3_int64)x1);
+    speedtest1_run();
+  }
+  if( g.doBigTransactions ){
+    speedtest1_exec("COMMIT");
+  }
+  speedtest1_end_test();
+
+  sz = n = g.szTest*700;
+  zNum[0] = 0;
+  maxb = roundup_allones(sz/3);
+  speedtest1_begin_test(500, "%d REPLACE on TEXT PK", n);
+  speedtest1_exec("BEGIN");
+  speedtest1_exec("CREATE%s TABLE t6(a TEXT PRIMARY KEY, b %s)%s;",
+                  isTemp(9), g.zNN,
+                  sqlite3_libversion_number()>=3008002 ? "WITHOUT ROWID" : "");
+  speedtest1_prepare("REPLACE INTO t6 VALUES(?1,?2); --  %d times",n);
+  for(i=1; i<=n; i++){
+    x1 = swizzle(i,maxb);
+    speedtest1_numbername(x1, zNum, sizeof(zNum));
+    sqlite3_bind_int(g.pStmt, 2, i);
+    sqlite3_bind_text(g.pStmt, 1, zNum, -1, SQLITE_STATIC);
+    speedtest1_run();
+  }
+  speedtest1_exec("COMMIT");
+  speedtest1_end_test();
+  speedtest1_begin_test(510, "%d SELECTS on a TEXT PK", n);
+  if( g.doBigTransactions ){
+    /* See notes for test 410. */
+    speedtest1_exec("BEGIN");
+  }
+  speedtest1_prepare("SELECT b FROM t6 WHERE a=?1; --  %d times",n);
+  for(i=1; i<=n; i++){
+    x1 = swizzle(i,maxb);
+    speedtest1_numbername(x1, zNum, sizeof(zNum));
+    sqlite3_bind_text(g.pStmt, 1, zNum, -1, SQLITE_STATIC);
+    speedtest1_run();
+  }
+  if( g.doBigTransactions ){
+    speedtest1_exec("COMMIT");
+  }
+  speedtest1_end_test();
+  speedtest1_begin_test(520, "%d SELECT DISTINCT", n);
+  speedtest1_exec("SELECT DISTINCT b FROM t5;");
+  speedtest1_exec("SELECT DISTINCT b FROM t6;");
+  speedtest1_end_test();
+
+
+  speedtest1_begin_test(980, "PRAGMA integrity_check");
+  speedtest1_exec("PRAGMA integrity_check");
+  speedtest1_end_test();
+
+
+  speedtest1_begin_test(990, "ANALYZE");
+  speedtest1_exec("ANALYZE");
+  speedtest1_end_test();
+}
+
+/*
+** A testset for common table expressions.  This exercises code
+** for views, subqueries, co-routines, etc.
+*/
+void testset_cte(void){
+  static const char *azPuzzle[] = {
+    /* Easy */
+    "534...9.."
+    "67.195..."
+    ".98....6."
+    "8...6...3"
+    "4..8.3..1"
+    "....2...6"
+    ".6....28."
+    "...419..5"
+    "...28..79",
+
+    /* Medium */
+    "53....9.."
+    "6..195..."
+    ".98....6."
+    "8...6...3"
+    "4..8.3..1"
+    "....2...6"
+    ".6....28."
+    "...419..5"
+    "....8..79",
+
+    /* Hard */
+    "53......."
+    "6..195..."
+    ".98....6."
+    "8...6...3"
+    "4..8.3..1"
+    "....2...6"
+    ".6....28."
+    "...419..5"
+    "....8..79",
+  };
+  const char *zPuz;
+  double rSpacing;
+  int nElem;
+
+  if( g.szTest<25 ){
+    zPuz = azPuzzle[0];
+  }else if( g.szTest<70 ){
+    zPuz = azPuzzle[1];
+  }else{
+    zPuz = azPuzzle[2];
+  }
+  speedtest1_begin_test(100, "Sudoku with recursive 'digits'");
+  speedtest1_prepare(
+    "WITH RECURSIVE\n"
+    "  input(sud) AS (VALUES(?1)),\n"
+    "  digits(z,lp) AS (\n"
+    "    VALUES('1', 1)\n"
+    "    UNION ALL\n"
+    "    SELECT CAST(lp+1 AS TEXT), lp+1 FROM digits WHERE lp<9\n"
+    "  ),\n"
+    "  x(s, ind) AS (\n"
+    "    SELECT sud, instr(sud, '.') FROM input\n"
+    "    UNION ALL\n"
+    "    SELECT\n"
+    "      substr(s, 1, ind-1) || z || substr(s, ind+1),\n"
+    "      instr( substr(s, 1, ind-1) || z || substr(s, ind+1), '.' )\n"
+    "     FROM x, digits AS z\n"
+    "    WHERE ind>0\n"
+    "      AND NOT EXISTS (\n"
+    "            SELECT 1\n"
+    "              FROM digits AS lp\n"
+    "             WHERE z.z = substr(s, ((ind-1)/9)*9 + lp, 1)\n"
+    "                OR z.z = substr(s, ((ind-1)%%9) + (lp-1)*9 + 1, 1)\n"
+    "                OR z.z = substr(s, (((ind-1)/3) %% 3) * 3\n"
+    "                        + ((ind-1)/27) * 27 + lp\n"
+    "                        + ((lp-1) / 3) * 6, 1)\n"
+    "         )\n"
+    "  )\n"
+    "SELECT s FROM x WHERE ind=0;"
+  );
+  sqlite3_bind_text(g.pStmt, 1, zPuz, -1, SQLITE_STATIC);
+  speedtest1_run();
+  speedtest1_end_test();
+
+  speedtest1_begin_test(200, "Sudoku with VALUES 'digits'");
+  speedtest1_prepare(
+    "WITH RECURSIVE\n"
+    "  input(sud) AS (VALUES(?1)),\n"
+    "  digits(z,lp) AS (VALUES('1',1),('2',2),('3',3),('4',4),('5',5),\n"
+    "                         ('6',6),('7',7),('8',8),('9',9)),\n"
+    "  x(s, ind) AS (\n"
+    "    SELECT sud, instr(sud, '.') FROM input\n"
+    "    UNION ALL\n"
+    "    SELECT\n"
+    "      substr(s, 1, ind-1) || z || substr(s, ind+1),\n"
+    "      instr( substr(s, 1, ind-1) || z || substr(s, ind+1), '.' )\n"
+    "     FROM x, digits AS z\n"
+    "    WHERE ind>0\n"
+    "      AND NOT EXISTS (\n"
+    "            SELECT 1\n"
+    "              FROM digits AS lp\n"
+    "             WHERE z.z = substr(s, ((ind-1)/9)*9 + lp, 1)\n"
+    "                OR z.z = substr(s, ((ind-1)%%9) + (lp-1)*9 + 1, 1)\n"
+    "                OR z.z = substr(s, (((ind-1)/3) %% 3) * 3\n"
+    "                        + ((ind-1)/27) * 27 + lp\n"
+    "                        + ((lp-1) / 3) * 6, 1)\n"
+    "         )\n"
+    "  )\n"
+    "SELECT s FROM x WHERE ind=0;"
+  );
+  sqlite3_bind_text(g.pStmt, 1, zPuz, -1, SQLITE_STATIC);
+  speedtest1_run();
+  speedtest1_end_test();
+
+  rSpacing = 5.0/g.szTest;
+  speedtest1_begin_test(300, "Mandelbrot Set with spacing=%f", rSpacing);
+  speedtest1_prepare(
+   "WITH RECURSIVE \n"
+   "  xaxis(x) AS (VALUES(-2.0) UNION ALL SELECT x+?1 FROM xaxis WHERE x<1.2),\n"
+   "  yaxis(y) AS (VALUES(-1.0) UNION ALL SELECT y+?2 FROM yaxis WHERE y<1.0),\n"
+   "  m(iter, cx, cy, x, y) AS (\n"
+   "    SELECT 0, x, y, 0.0, 0.0 FROM xaxis, yaxis\n"
+   "    UNION ALL\n"
+   "    SELECT iter+1, cx, cy, x*x-y*y + cx, 2.0*x*y + cy FROM m \n"
+   "     WHERE (x*x + y*y) < 4.0 AND iter<28\n"
+   "  ),\n"
+   "  m2(iter, cx, cy) AS (\n"
+   "    SELECT max(iter), cx, cy FROM m GROUP BY cx, cy\n"
+   "  ),\n"
+   "  a(t) AS (\n"
+   "    SELECT group_concat( substr(' .+*#', 1+min(iter/7,4), 1), '') \n"
+   "    FROM m2 GROUP BY cy\n"
+   "  )\n"
+   "SELECT group_concat(rtrim(t),x'0a') FROM a;"
+  );
+  sqlite3_bind_double(g.pStmt, 1, rSpacing*.05);
+  sqlite3_bind_double(g.pStmt, 2, rSpacing);
+  speedtest1_run();
+  speedtest1_end_test();
+
+  nElem = 10000*g.szTest;
+  speedtest1_begin_test(400, "EXCEPT operator on %d-element tables", nElem);
+  speedtest1_prepare(
+    "WITH RECURSIVE \n"
+    "  z1(x) AS (VALUES(2) UNION ALL SELECT x+2 FROM z1 WHERE x<%d),\n"
+    "  z2(y) AS (VALUES(3) UNION ALL SELECT y+3 FROM z2 WHERE y<%d)\n"
+    "SELECT count(x), avg(x) FROM (\n"
+    "  SELECT x FROM z1 EXCEPT SELECT y FROM z2 ORDER BY 1\n"
+    ");",
+    nElem, nElem
+  );
+  speedtest1_run();
+  speedtest1_end_test();
+}
+
+/*
+** Compute a pseudo-random floating point ascii number.
+*/
+void speedtest1_random_ascii_fp(char *zFP){
+  int x = speedtest1_random();
+  int y = speedtest1_random();
+  int z;
+  z = y%10;
+  if( z<0 ) z = -z;
+  y /= 10;
+  sqlite3_snprintf(100,zFP,"%d.%de%d",y,z,x%200);
+}
+
+/*
+** A testset for floating-point numbers.
+*/
+void testset_fp(void){
+  int n;
+  int i;
+  char zFP1[100];
+  char zFP2[100];
+  
+  n = g.szTest*5000;
+  speedtest1_begin_test(100, "Fill a table with %d FP values", n*2);
+  speedtest1_exec("BEGIN");
+  speedtest1_exec("CREATE%s TABLE z1(a REAL %s, b REAL %s);",
+                  isTemp(1), g.zNN, g.zNN);
+  speedtest1_prepare("INSERT INTO z1 VALUES(?1,?2); -- %d times", n);
+  for(i=1; i<=n; i++){
+    speedtest1_random_ascii_fp(zFP1);
+    speedtest1_random_ascii_fp(zFP2);
+    sqlite3_bind_text(g.pStmt, 1, zFP1, -1, SQLITE_STATIC);
+    sqlite3_bind_text(g.pStmt, 2, zFP2, -1, SQLITE_STATIC);
+    speedtest1_run();
+  }
+  speedtest1_exec("COMMIT");
+  speedtest1_end_test();
+
+  n = g.szTest/25 + 2;
+  speedtest1_begin_test(110, "%d range queries", n);
+  speedtest1_prepare("SELECT sum(b) FROM z1 WHERE a BETWEEN ?1 AND ?2");
+  for(i=1; i<=n; i++){
+    speedtest1_random_ascii_fp(zFP1);
+    speedtest1_random_ascii_fp(zFP2);
+    sqlite3_bind_text(g.pStmt, 1, zFP1, -1, SQLITE_STATIC);
+    sqlite3_bind_text(g.pStmt, 2, zFP2, -1, SQLITE_STATIC);
+    speedtest1_run();
+  }
+  speedtest1_end_test();
+
+  speedtest1_begin_test(120, "CREATE INDEX three times");
+  speedtest1_exec("BEGIN;");
+  speedtest1_exec("CREATE INDEX t1a ON z1(a);");
+  speedtest1_exec("CREATE INDEX t1b ON z1(b);");
+  speedtest1_exec("CREATE INDEX t1ab ON z1(a,b);");
+  speedtest1_exec("COMMIT;");
+  speedtest1_end_test();
+
+  n = g.szTest/3 + 2;
+  speedtest1_begin_test(130, "%d indexed range queries", n);
+  speedtest1_prepare("SELECT sum(b) FROM z1 WHERE a BETWEEN ?1 AND ?2");
+  for(i=1; i<=n; i++){
+    speedtest1_random_ascii_fp(zFP1);
+    speedtest1_random_ascii_fp(zFP2);
+    sqlite3_bind_text(g.pStmt, 1, zFP1, -1, SQLITE_STATIC);
+    sqlite3_bind_text(g.pStmt, 2, zFP2, -1, SQLITE_STATIC);
+    speedtest1_run();
+  }
+  speedtest1_end_test();
+
+  n = g.szTest*5000;
+  speedtest1_begin_test(140, "%d calls to round()", n);
+  speedtest1_exec("SELECT sum(round(a,2)+round(b,4)) FROM z1;");
+  speedtest1_end_test();
+
+
+  speedtest1_begin_test(150, "%d printf() calls", n*4);
+  speedtest1_exec(
+    "WITH c(fmt) AS (VALUES('%%g'),('%%e'),('%%!g'),('%%.20f'))"
+    "SELECT sum(printf(fmt,a)) FROM z1, c"
+  );
+  speedtest1_end_test();
+}
+
+#ifdef SQLITE_ENABLE_RTREE
+/* Generate two numbers between 1 and mx.  The first number is less than
+** the second.  Usually the numbers are near each other but can sometimes
+** be far apart.
+*/
+static void twoCoords(
+  int p1, int p2,                   /* Parameters adjusting sizes */
+  unsigned mx,                      /* Range of 1..mx */
+  unsigned *pX0, unsigned *pX1      /* OUT: write results here */
+){
+  unsigned d, x0, x1, span;
+
+  span = mx/100 + 1;
+  if( speedtest1_random()%3==0 ) span *= p1;
+  if( speedtest1_random()%p2==0 ) span = mx/2;
+  d = speedtest1_random()%span + 1;
+  x0 = speedtest1_random()%(mx-d) + 1;
+  x1 = x0 + d;
+  *pX0 = x0;
+  *pX1 = x1;
+}
+#endif
+
+#ifdef SQLITE_ENABLE_RTREE
+/* The following routine is an R-Tree geometry callback.  It returns
+** true if the object overlaps a slice on the Y coordinate between the
+** two values given as arguments.  In other words
+**
+**     SELECT count(*) FROM rt1 WHERE id MATCH xslice(10,20);
+**
+** Is the same as saying:
+**
+**     SELECT count(*) FROM rt1 WHERE y1>=10 AND y0<=20;
+*/
+static int xsliceGeometryCallback(
+  sqlite3_rtree_geometry *p,
+  int nCoord,
+  double *aCoord,
+  int *pRes
+){
+  *pRes = aCoord[3]>=p->aParam[0] && aCoord[2]<=p->aParam[1];
+  return SQLITE_OK;
+}
+#endif /* SQLITE_ENABLE_RTREE */
+
+#ifdef SQLITE_ENABLE_RTREE
+/*
+** A testset for the R-Tree virtual table
+*/
+void testset_rtree(int p1, int p2){
+  unsigned i, n;
+  unsigned mxCoord;
+  unsigned x0, x1, y0, y1, z0, z1;
+  unsigned iStep;
+  unsigned mxRowid;
+  int *aCheck = sqlite3_malloc( sizeof(int)*g.szTest*500 );
+
+  mxCoord = 15000;
+  mxRowid = n = g.szTest*500;
+  speedtest1_begin_test(100, "%d INSERTs into an r-tree", n);
+  speedtest1_exec("BEGIN");
+  speedtest1_exec("CREATE VIRTUAL TABLE rt1 USING rtree(id,x0,x1,y0,y1,z0,z1)");
+  speedtest1_prepare("INSERT INTO rt1(id,x0,x1,y0,y1,z0,z1)"
+                     "VALUES(?1,?2,?3,?4,?5,?6,?7)");
+  for(i=1; i<=n; i++){
+    twoCoords(p1, p2, mxCoord, &x0, &x1);
+    twoCoords(p1, p2, mxCoord, &y0, &y1);
+    twoCoords(p1, p2, mxCoord, &z0, &z1);
+    sqlite3_bind_int(g.pStmt, 1, i);
+    sqlite3_bind_int(g.pStmt, 2, x0);
+    sqlite3_bind_int(g.pStmt, 3, x1);
+    sqlite3_bind_int(g.pStmt, 4, y0);
+    sqlite3_bind_int(g.pStmt, 5, y1);
+    sqlite3_bind_int(g.pStmt, 6, z0);
+    sqlite3_bind_int(g.pStmt, 7, z1);
+    speedtest1_run();
+  }
+  speedtest1_exec("COMMIT");
+  speedtest1_end_test();
+
+  speedtest1_begin_test(101, "Copy from rtree to a regular table");
+  speedtest1_exec("CREATE TABLE z1(id INTEGER PRIMARY KEY,x0,x1,y0,y1,z0,z1)");
+  speedtest1_exec("INSERT INTO z1 SELECT * FROM rt1");
+  speedtest1_end_test();
+
+  n = g.szTest*200;
+  speedtest1_begin_test(110, "%d one-dimensional intersect slice queries", n);
+  speedtest1_prepare("SELECT count(*) FROM rt1 WHERE x0>=?1 AND x1<=?2");
+  iStep = mxCoord/n;
+  for(i=0; i<n; i++){
+    sqlite3_bind_int(g.pStmt, 1, i*iStep);
+    sqlite3_bind_int(g.pStmt, 2, (i+1)*iStep);
+    speedtest1_run();
+    aCheck[i] = atoi(g.zResult);
+  }
+  speedtest1_end_test();
+
+  if( g.bVerify ){
+    n = g.szTest*200;
+    speedtest1_begin_test(111, "Verify result from 1-D intersect slice queries");
+    speedtest1_prepare("SELECT count(*) FROM z1 WHERE x0>=?1 AND x1<=?2");
+    iStep = mxCoord/n;
+    for(i=0; i<n; i++){
+      sqlite3_bind_int(g.pStmt, 1, i*iStep);
+      sqlite3_bind_int(g.pStmt, 2, (i+1)*iStep);
+      speedtest1_run();
+      if( aCheck[i]!=atoi(g.zResult) ){
+        fatal_error("Count disagree step %d: %d..%d.  %d vs %d",
+                    i, i*iStep, (i+1)*iStep, aCheck[i], atoi(g.zResult));
+      }
+    }
+    speedtest1_end_test();
+  }
+  
+  n = g.szTest*200;
+  speedtest1_begin_test(120, "%d one-dimensional overlap slice queries", n);
+  speedtest1_prepare("SELECT count(*) FROM rt1 WHERE y1>=?1 AND y0<=?2");
+  iStep = mxCoord/n;
+  for(i=0; i<n; i++){
+    sqlite3_bind_int(g.pStmt, 1, i*iStep);
+    sqlite3_bind_int(g.pStmt, 2, (i+1)*iStep);
+    speedtest1_run();
+    aCheck[i] = atoi(g.zResult);
+  }
+  speedtest1_end_test();
+
+  if( g.bVerify ){
+    n = g.szTest*200;
+    speedtest1_begin_test(121, "Verify result from 1-D overlap slice queries");
+    speedtest1_prepare("SELECT count(*) FROM z1 WHERE y1>=?1 AND y0<=?2");
+    iStep = mxCoord/n;
+    for(i=0; i<n; i++){
+      sqlite3_bind_int(g.pStmt, 1, i*iStep);
+      sqlite3_bind_int(g.pStmt, 2, (i+1)*iStep);
+      speedtest1_run();
+      if( aCheck[i]!=atoi(g.zResult) ){
+        fatal_error("Count disagree step %d: %d..%d.  %d vs %d",
+                    i, i*iStep, (i+1)*iStep, aCheck[i], atoi(g.zResult));
+      }
+    }
+    speedtest1_end_test();
+  }
+  
+
+  n = g.szTest*200;
+  speedtest1_begin_test(125, "%d custom geometry callback queries", n);
+  sqlite3_rtree_geometry_callback(g.db, "xslice", xsliceGeometryCallback, 0);
+  speedtest1_prepare("SELECT count(*) FROM rt1 WHERE id MATCH xslice(?1,?2)");
+  iStep = mxCoord/n;
+  for(i=0; i<n; i++){
+    sqlite3_bind_int(g.pStmt, 1, i*iStep);
+    sqlite3_bind_int(g.pStmt, 2, (i+1)*iStep);
+    speedtest1_run();
+    if( aCheck[i]!=atoi(g.zResult) ){
+      fatal_error("Count disagree step %d: %d..%d.  %d vs %d",
+                  i, i*iStep, (i+1)*iStep, aCheck[i], atoi(g.zResult));
+    }
+  }
+  speedtest1_end_test();
+
+  n = g.szTest*400;
+  speedtest1_begin_test(130, "%d three-dimensional intersect box queries", n);
+  speedtest1_prepare("SELECT count(*) FROM rt1 WHERE x1>=?1 AND x0<=?2"
+                     " AND y1>=?1 AND y0<=?2 AND z1>=?1 AND z0<=?2");
+  iStep = mxCoord/n;
+  for(i=0; i<n; i++){
+    sqlite3_bind_int(g.pStmt, 1, i*iStep);
+    sqlite3_bind_int(g.pStmt, 2, (i+1)*iStep);
+    speedtest1_run();
+    aCheck[i] = atoi(g.zResult);
+  }
+  speedtest1_end_test();
+
+  n = g.szTest*500;
+  speedtest1_begin_test(140, "%d rowid queries", n);
+  speedtest1_prepare("SELECT * FROM rt1 WHERE id=?1");
+  for(i=1; i<=n; i++){
+    sqlite3_bind_int(g.pStmt, 1, i);
+    speedtest1_run();
+  }
+  speedtest1_end_test();
+
+  n = g.szTest*50;
+  speedtest1_begin_test(150, "%d UPDATEs using rowid", n);
+  speedtest1_prepare("UPDATE rt1 SET x0=x0+100, x1=x1+100 WHERE id=?1");
+  for(i=1; i<=n; i++){
+    sqlite3_bind_int(g.pStmt, 1, (i*251)%mxRowid + 1);
+    speedtest1_run();
+  }
+  speedtest1_end_test();
+
+  n = g.szTest*5;
+  speedtest1_begin_test(155, "%d UPDATEs using one-dimensional overlap", n);
+  speedtest1_prepare("UPDATE rt1 SET x0=x0-100, x1=x1-100"
+                     " WHERE y1>=?1 AND y0<=?1+5");
+  iStep = mxCoord/n;
+  for(i=0; i<n; i++){
+    sqlite3_bind_int(g.pStmt, 1, i*iStep);
+    speedtest1_run();
+    aCheck[i] = atoi(g.zResult);
+  }
+  speedtest1_end_test();
+
+  n = g.szTest*50;
+  speedtest1_begin_test(160, "%d DELETEs using rowid", n);
+  speedtest1_prepare("DELETE FROM rt1 WHERE id=?1");
+  for(i=1; i<=n; i++){
+    sqlite3_bind_int(g.pStmt, 1, (i*257)%mxRowid + 1);
+    speedtest1_run();
+  }
+  speedtest1_end_test();
+
+
+  n = g.szTest*5;
+  speedtest1_begin_test(165, "%d DELETEs using one-dimensional overlap", n);
+  speedtest1_prepare("DELETE FROM rt1 WHERE y1>=?1 AND y0<=?1+5");
+  iStep = mxCoord/n;
+  for(i=0; i<n; i++){
+    sqlite3_bind_int(g.pStmt, 1, i*iStep);
+    speedtest1_run();
+    aCheck[i] = atoi(g.zResult);
+  }
+  speedtest1_end_test();
+
+  speedtest1_begin_test(170, "Restore deleted entries using INSERT OR IGNORE");
+  speedtest1_exec("INSERT OR IGNORE INTO rt1 SELECT * FROM z1");
+  speedtest1_end_test();
+}
+#endif /* SQLITE_ENABLE_RTREE */
+
+/*
+** A testset that does key/value storage on tables with many columns.
+** This is the kind of workload generated by ORMs such as CoreData.
+*/
+void testset_orm(void){
+  unsigned i, j, n;
+  unsigned nRow;
+  unsigned x1, len;
+  char zNum[2000];              /* A number name */
+  static const char zType[] =   /* Types for all non-PK columns, in order */
+    "IBBIIITIVVITBTBFBFITTFBTBVBVIFTBBFITFFVBIFIVBVVVBTVTIBBFFIVIBTB"
+    "TVTTFTVTVFFIITIFBITFTTFFFVBIIBTTITFTFFVVVFIIITVBBVFFTVVB";
+
+  nRow = n = g.szTest*250;
+  speedtest1_begin_test(100, "Fill %d rows", n);
+  speedtest1_exec(
+    "BEGIN;"
+    "CREATE TABLE ZLOOKSLIKECOREDATA ("
+    "  ZPK INTEGER PRIMARY KEY,"
+    "  ZTERMFITTINGHOUSINGCOMMAND INTEGER,"
+    "  ZBRIEFGOBYDODGERHEIGHT BLOB,"
+    "  ZCAPABLETRIPDOORALMOND BLOB,"
+    "  ZDEPOSITPAIRCOLLEGECOMET INTEGER,"
+    "  ZFRAMEENTERSIMPLEMOUTH INTEGER,"
+    "  ZHOPEFULGATEHOLECHALK INTEGER,"
+    "  ZSLEEPYUSERGRANDBOWL TIMESTAMP,"
+    "  ZDEWPEACHCAREERCELERY INTEGER,"
+    "  ZHANGERLITHIUMDINNERMEET VARCHAR,"
+    "  ZCLUBRELEASELIZARDADVICE VARCHAR,"
+    "  ZCHARGECLICKHUMANEHIRE INTEGER,"
+    "  ZFINGERDUEPIZZAOPTION TIMESTAMP,"
+    "  ZFLYINGDOCTORTABLEMELODY BLOB,"
+    "  ZLONGFINLEAVEIMAGEOIL TIMESTAMP,"
+    "  ZFAMILYVISUALOWNERMATTER BLOB,"
+    "  ZGOLDYOUNGINITIALNOSE FLOAT,"
+    "  ZCAUSESALAMITERMCYAN BLOB,"
+    "  ZSPREADMOTORBISCUITBACON FLOAT,"
+    "  ZGIFTICEFISHGLUEHAIR INTEGER,"
+    "  ZNOTICEPEARPOLICYJUICE TIMESTAMP,"
+    "  ZBANKBUFFALORECOVERORBIT TIMESTAMP,"
+    "  ZLONGDIETESSAYNATURE FLOAT,"
+    "  ZACTIONRANGEELEGANTNEUTRON BLOB,"
+    "  ZCADETBRIGHTPLANETBANK TIMESTAMP,"
+    "  ZAIRFORGIVEHEADFROG BLOB,"
+    "  ZSHARKJUSTFRUITMOVIE VARCHAR,"
+    "  ZFARMERMORNINGMIRRORCONCERN BLOB,"
+    "  ZWOODPOETRYCOBBLERBENCH VARCHAR,"
+    "  ZHAFNIUMSCRIPTSALADMOTOR INTEGER,"
+    "  ZPROBLEMCLUBPOPOVERJELLY FLOAT,"
+    "  ZEIGHTLEADERWORKERMOST TIMESTAMP,"
+    "  ZGLASSRESERVEBARIUMMEAL BLOB,"
+    "  ZCLAMBITARUGULAFAJITA BLOB,"
+    "  ZDECADEJOYOUSWAVEHABIT FLOAT,"
+    "  ZCOMPANYSUMMERFIBERELF INTEGER,"
+    "  ZTREATTESTQUILLCHARGE TIMESTAMP,"
+    "  ZBROWBALANCEKEYCHOWDER FLOAT,"
+    "  ZPEACHCOPPERDINNERLAKE FLOAT,"
+    "  ZDRYWALLBEYONDBROWNBOWL VARCHAR,"
+    "  ZBELLYCRASHITEMLACK BLOB,"
+    "  ZTENNISCYCLEBILLOFFICER INTEGER,"
+    "  ZMALLEQUIPTHANKSGLUE FLOAT,"
+    "  ZMISSREPLYHUMANLIVING INTEGER,"
+    "  ZKIWIVISUALPRIDEAPPLE VARCHAR,"
+    "  ZWISHHITSKINMOTOR BLOB,"
+    "  ZCALMRACCOONPROGRAMDEBIT VARCHAR,"
+    "  ZSHINYASSISTLIVINGCRAB VARCHAR,"
+    "  ZRESOLVEWRISTWRAPAPPLE VARCHAR,"
+    "  ZAPPEALSIMPLESECONDHOUSING BLOB,"
+    "  ZCORNERANCHORTAPEDIVER TIMESTAMP,"
+    "  ZMEMORYREQUESTSOURCEBIG VARCHAR,"
+    "  ZTRYFACTKEEPMILK TIMESTAMP,"
+    "  ZDIVERPAINTLEATHEREASY INTEGER,"
+    "  ZSORTMISTYQUOTECABBAGE BLOB,"
+    "  ZTUNEGASBUFFALOCAPITAL BLOB,"
+    "  ZFILLSTOPLAWJOYFUL FLOAT,"
+    "  ZSTEELCAREFULPLATENUMBER FLOAT,"
+    "  ZGIVEVIVIDDIVINEMEANING INTEGER,"
+    "  ZTREATPACKFUTURECONVERT VARCHAR,"
+    "  ZCALMLYGEMFINISHEFFECT INTEGER,"
+    "  ZCABBAGESOCKEASEMINUTE BLOB,"
+    "  ZPLANETFAMILYPUREMEMORY TIMESTAMP,"
+    "  ZMERRYCRACKTRAINLEADER BLOB,"
+    "  ZMINORWAYPAPERCLASSY TIMESTAMP,"
+    "  ZEAGLELINEMINEMAIL VARCHAR,"
+    "  ZRESORTYARDGREENLET TIMESTAMP,"
+    "  ZYARDOREGANOVIVIDJEWEL TIMESTAMP,"
+    "  ZPURECAKEVIVIDNEATLY FLOAT,"
+    "  ZASKCONTACTMONITORFUN TIMESTAMP,"
+    "  ZMOVEWHOGAMMAINCH VARCHAR,"
+    "  ZLETTUCEBIRDMEETDEBATE TIMESTAMP,"
+    "  ZGENENATURALHEARINGKITE VARCHAR,"
+    "  ZMUFFINDRYERDRAWFORTUNE FLOAT,"
+    "  ZGRAYSURVEYWIRELOVE FLOAT,"
+    "  ZPLIERSPRINTASKOREGANO INTEGER,"
+    "  ZTRAVELDRIVERCONTESTLILY INTEGER,"
+    "  ZHUMORSPICESANDKIDNEY TIMESTAMP,"
+    "  ZARSENICSAMPLEWAITMUON INTEGER,"
+    "  ZLACEADDRESSGROUNDCAREFUL FLOAT,"
+    "  ZBAMBOOMESSWASABIEVENING BLOB,"
+    "  ZONERELEASEAVERAGENURSE INTEGER,"
+    "  ZRADIANTWHENTRYCARD TIMESTAMP,"
+    "  ZREWARDINSIDEMANGOINTENSE FLOAT,"
+    "  ZNEATSTEWPARTIRON TIMESTAMP,"
+    "  ZOUTSIDEPEAHENCOUNTICE TIMESTAMP,"
+    "  ZCREAMEVENINGLIPBRANCH FLOAT,"
+    "  ZWHALEMATHAVOCADOCOPPER FLOAT,"
+    "  ZLIFEUSELEAFYBELL FLOAT,"
+    "  ZWEALTHLINENGLEEFULDAY VARCHAR,"
+    "  ZFACEINVITETALKGOLD BLOB,"
+    "  ZWESTAMOUNTAFFECTHEARING INTEGER,"
+    "  ZDELAYOUTCOMEHORNAGENCY INTEGER,"
+    "  ZBIGTHINKCONVERTECONOMY BLOB,"
+    "  ZBASEGOUDAREGULARFORGIVE TIMESTAMP,"
+    "  ZPATTERNCLORINEGRANDCOLBY TIMESTAMP,"
+    "  ZCYANBASEFEEDADROIT INTEGER,"
+    "  ZCARRYFLOORMINNOWDRAGON TIMESTAMP,"
+    "  ZIMAGEPENCILOTHERBOTTOM FLOAT,"
+    "  ZXENONFLIGHTPALEAPPLE TIMESTAMP,"
+    "  ZHERRINGJOKEFEATUREHOPEFUL FLOAT,"
+    "  ZCAPYEARLYRIVETBRUSH FLOAT,"
+    "  ZAGEREEDFROGBASKET VARCHAR,"
+    "  ZUSUALBODYHALIBUTDIAMOND VARCHAR,"
+    "  ZFOOTTAPWORDENTRY VARCHAR,"
+    "  ZDISHKEEPBLESTMONITOR FLOAT,"
+    "  ZBROADABLESOLIDCASUAL INTEGER,"
+    "  ZSQUAREGLEEFULCHILDLIGHT INTEGER,"
+    "  ZHOLIDAYHEADPONYDETAIL INTEGER,"
+    "  ZGENERALRESORTSKYOPEN TIMESTAMP,"
+    "  ZGLADSPRAYKIDNEYGUPPY VARCHAR,"
+    "  ZSWIMHEAVYMENTIONKIND BLOB,"
+    "  ZMESSYSULFURDREAMFESTIVE BLOB,"
+    "  ZSKYSKYCLASSICBRIEF VARCHAR,"
+    "  ZDILLASKHOKILEMON FLOAT,"
+    "  ZJUNIORSHOWPRESSNOVA FLOAT,"
+    "  ZSIZETOEAWARDFRESH TIMESTAMP,"
+    "  ZKEYFAILAPRICOTMETAL VARCHAR,"
+    "  ZHANDYREPAIRPROTONAIRPORT VARCHAR,"
+    "  ZPOSTPROTEINHANDLEACTOR BLOB"
+    ");"
+  );
+  speedtest1_prepare(
+    "INSERT INTO ZLOOKSLIKECOREDATA(ZPK,ZAIRFORGIVEHEADFROG,"
+    "ZGIFTICEFISHGLUEHAIR,ZDELAYOUTCOMEHORNAGENCY,ZSLEEPYUSERGRANDBOWL,"
+    "ZGLASSRESERVEBARIUMMEAL,ZBRIEFGOBYDODGERHEIGHT,"
+    "ZBAMBOOMESSWASABIEVENING,ZFARMERMORNINGMIRRORCONCERN,"
+    "ZTREATPACKFUTURECONVERT,ZCAUSESALAMITERMCYAN,ZCALMRACCOONPROGRAMDEBIT,"
+    "ZHOLIDAYHEADPONYDETAIL,ZWOODPOETRYCOBBLERBENCH,ZHAFNIUMSCRIPTSALADMOTOR,"
+    "ZUSUALBODYHALIBUTDIAMOND,ZOUTSIDEPEAHENCOUNTICE,ZDIVERPAINTLEATHEREASY,"
+    "ZWESTAMOUNTAFFECTHEARING,ZSIZETOEAWARDFRESH,ZDEWPEACHCAREERCELERY,"
+    "ZSTEELCAREFULPLATENUMBER,ZCYANBASEFEEDADROIT,ZCALMLYGEMFINISHEFFECT,"
+    "ZHANDYREPAIRPROTONAIRPORT,ZGENENATURALHEARINGKITE,ZBROADABLESOLIDCASUAL,"
+    "ZPOSTPROTEINHANDLEACTOR,ZLACEADDRESSGROUNDCAREFUL,ZIMAGEPENCILOTHERBOTTOM,"
+    "ZPROBLEMCLUBPOPOVERJELLY,ZPATTERNCLORINEGRANDCOLBY,ZNEATSTEWPARTIRON,"
+    "ZAPPEALSIMPLESECONDHOUSING,ZMOVEWHOGAMMAINCH,ZTENNISCYCLEBILLOFFICER,"
+    "ZSHARKJUSTFRUITMOVIE,ZKEYFAILAPRICOTMETAL,ZCOMPANYSUMMERFIBERELF,"
+    "ZTERMFITTINGHOUSINGCOMMAND,ZRESORTYARDGREENLET,ZCABBAGESOCKEASEMINUTE,"
+    "ZSQUAREGLEEFULCHILDLIGHT,ZONERELEASEAVERAGENURSE,ZBIGTHINKCONVERTECONOMY,"
+    "ZPLIERSPRINTASKOREGANO,ZDECADEJOYOUSWAVEHABIT,ZDRYWALLBEYONDBROWNBOWL,"
+    "ZCLUBRELEASELIZARDADVICE,ZWHALEMATHAVOCADOCOPPER,ZBELLYCRASHITEMLACK,"
+    "ZLETTUCEBIRDMEETDEBATE,ZCAPABLETRIPDOORALMOND,ZRADIANTWHENTRYCARD,"
+    "ZCAPYEARLYRIVETBRUSH,ZAGEREEDFROGBASKET,ZSWIMHEAVYMENTIONKIND,"
+    "ZTRAVELDRIVERCONTESTLILY,ZGLADSPRAYKIDNEYGUPPY,ZBANKBUFFALORECOVERORBIT,"
+    "ZFINGERDUEPIZZAOPTION,ZCLAMBITARUGULAFAJITA,ZLONGFINLEAVEIMAGEOIL,"
+    "ZLONGDIETESSAYNATURE,ZJUNIORSHOWPRESSNOVA,ZHOPEFULGATEHOLECHALK,"
+    "ZDEPOSITPAIRCOLLEGECOMET,ZWEALTHLINENGLEEFULDAY,ZFILLSTOPLAWJOYFUL,"
+    "ZTUNEGASBUFFALOCAPITAL,ZGRAYSURVEYWIRELOVE,ZCORNERANCHORTAPEDIVER,"
+    "ZREWARDINSIDEMANGOINTENSE,ZCADETBRIGHTPLANETBANK,ZPLANETFAMILYPUREMEMORY,"
+    "ZTREATTESTQUILLCHARGE,ZCREAMEVENINGLIPBRANCH,ZSKYSKYCLASSICBRIEF,"
+    "ZARSENICSAMPLEWAITMUON,ZBROWBALANCEKEYCHOWDER,ZFLYINGDOCTORTABLEMELODY,"
+    "ZHANGERLITHIUMDINNERMEET,ZNOTICEPEARPOLICYJUICE,ZSHINYASSISTLIVINGCRAB,"
+    "ZLIFEUSELEAFYBELL,ZFACEINVITETALKGOLD,ZGENERALRESORTSKYOPEN,"
+    "ZPURECAKEVIVIDNEATLY,ZKIWIVISUALPRIDEAPPLE,ZMESSYSULFURDREAMFESTIVE,"
+    "ZCHARGECLICKHUMANEHIRE,ZHERRINGJOKEFEATUREHOPEFUL,ZYARDOREGANOVIVIDJEWEL,"
+    "ZFOOTTAPWORDENTRY,ZWISHHITSKINMOTOR,ZBASEGOUDAREGULARFORGIVE,"
+    "ZMUFFINDRYERDRAWFORTUNE,ZACTIONRANGEELEGANTNEUTRON,ZTRYFACTKEEPMILK,"
+    "ZPEACHCOPPERDINNERLAKE,ZFRAMEENTERSIMPLEMOUTH,ZMERRYCRACKTRAINLEADER,"
+    "ZMEMORYREQUESTSOURCEBIG,ZCARRYFLOORMINNOWDRAGON,ZMINORWAYPAPERCLASSY,"
+    "ZDILLASKHOKILEMON,ZRESOLVEWRISTWRAPAPPLE,ZASKCONTACTMONITORFUN,"
+    "ZGIVEVIVIDDIVINEMEANING,ZEIGHTLEADERWORKERMOST,ZMISSREPLYHUMANLIVING,"
+    "ZXENONFLIGHTPALEAPPLE,ZSORTMISTYQUOTECABBAGE,ZEAGLELINEMINEMAIL,"
+    "ZFAMILYVISUALOWNERMATTER,ZSPREADMOTORBISCUITBACON,ZDISHKEEPBLESTMONITOR,"
+    "ZMALLEQUIPTHANKSGLUE,ZGOLDYOUNGINITIALNOSE,ZHUMORSPICESANDKIDNEY)"
+    "VALUES(?1,?26,?20,?93,?8,?33,?3,?81,?28,?60,?18,?47,?109,?29,?30,?104,?86,"
+    "?54,?92,?117,?9,?58,?97,?61,?119,?73,?107,?120,?80,?99,?31,?96,?85,?50,?71,"
+    "?42,?27,?118,?36,?2,?67,?62,?108,?82,?94,?76,?35,?40,?11,?88,?41,?72,?4,"
+    "?83,?102,?103,?112,?77,?111,?22,?13,?34,?15,?23,?116,?7,?5,?90,?57,?56,"
+    "?75,?51,?84,?25,?63,?37,?87,?114,?79,?38,?14,?10,?21,?48,?89,?91,?110,"
+    "?69,?45,?113,?12,?101,?68,?105,?46,?95,?74,?24,?53,?39,?6,?64,?52,?98,"
+    "?65,?115,?49,?70,?59,?32,?44,?100,?55,?66,?16,?19,?106,?43,?17,?78);"
+  );
+  for(i=0; i<n; i++){
+    x1 = speedtest1_random();
+    speedtest1_numbername(x1%1000, zNum, sizeof(zNum));
+    len = (int)strlen(zNum);
+    sqlite3_bind_int(g.pStmt, 1, i^0xf);
+    for(j=0; zType[j]; j++){
+      switch( zType[j] ){
+        case 'I':
+        case 'T':
+          sqlite3_bind_int64(g.pStmt, j+2, x1);
+          break;
+        case 'F':
+          sqlite3_bind_double(g.pStmt, j+2, (double)x1);
+          break;
+        case 'V':
+        case 'B':
+          sqlite3_bind_text64(g.pStmt, j+2, zNum, len,
+                              SQLITE_STATIC, SQLITE_UTF8);
+          break;
+      }
+    }
+    speedtest1_run();
+  }
+  speedtest1_exec("COMMIT;");
+  speedtest1_end_test();
+
+  n = g.szTest*250;
+  speedtest1_begin_test(110, "Query %d rows by rowid", n);
+  speedtest1_prepare(
+    "SELECT ZCYANBASEFEEDADROIT,ZJUNIORSHOWPRESSNOVA,ZCAUSESALAMITERMCYAN,"
+    "ZHOPEFULGATEHOLECHALK,ZHUMORSPICESANDKIDNEY,ZSWIMHEAVYMENTIONKIND,"
+    "ZMOVEWHOGAMMAINCH,ZAPPEALSIMPLESECONDHOUSING,ZHAFNIUMSCRIPTSALADMOTOR,"
+    "ZNEATSTEWPARTIRON,ZLONGFINLEAVEIMAGEOIL,ZDEWPEACHCAREERCELERY,"
+    "ZXENONFLIGHTPALEAPPLE,ZCALMRACCOONPROGRAMDEBIT,ZUSUALBODYHALIBUTDIAMOND,"
+    "ZTRYFACTKEEPMILK,ZWEALTHLINENGLEEFULDAY,ZLONGDIETESSAYNATURE,"
+    "ZLIFEUSELEAFYBELL,ZTREATPACKFUTURECONVERT,ZMEMORYREQUESTSOURCEBIG,"
+    "ZYARDOREGANOVIVIDJEWEL,ZDEPOSITPAIRCOLLEGECOMET,ZSLEEPYUSERGRANDBOWL,"
+    "ZBRIEFGOBYDODGERHEIGHT,ZCLUBRELEASELIZARDADVICE,ZCAPABLETRIPDOORALMOND,"
+    "ZDRYWALLBEYONDBROWNBOWL,ZASKCONTACTMONITORFUN,ZKIWIVISUALPRIDEAPPLE,"
+    "ZNOTICEPEARPOLICYJUICE,ZPEACHCOPPERDINNERLAKE,ZSTEELCAREFULPLATENUMBER,"
+    "ZGLADSPRAYKIDNEYGUPPY,ZCOMPANYSUMMERFIBERELF,ZTENNISCYCLEBILLOFFICER,"
+    "ZIMAGEPENCILOTHERBOTTOM,ZWESTAMOUNTAFFECTHEARING,ZDIVERPAINTLEATHEREASY,"
+    "ZSKYSKYCLASSICBRIEF,ZMESSYSULFURDREAMFESTIVE,ZMERRYCRACKTRAINLEADER,"
+    "ZBROADABLESOLIDCASUAL,ZGLASSRESERVEBARIUMMEAL,ZTUNEGASBUFFALOCAPITAL,"
+    "ZBANKBUFFALORECOVERORBIT,ZTREATTESTQUILLCHARGE,ZBAMBOOMESSWASABIEVENING,"
+    "ZREWARDINSIDEMANGOINTENSE,ZEAGLELINEMINEMAIL,ZCALMLYGEMFINISHEFFECT,"
+    "ZKEYFAILAPRICOTMETAL,ZFINGERDUEPIZZAOPTION,ZCADETBRIGHTPLANETBANK,"
+    "ZGOLDYOUNGINITIALNOSE,ZMISSREPLYHUMANLIVING,ZEIGHTLEADERWORKERMOST,"
+    "ZFRAMEENTERSIMPLEMOUTH,ZBIGTHINKCONVERTECONOMY,ZFACEINVITETALKGOLD,"
+    "ZPOSTPROTEINHANDLEACTOR,ZHERRINGJOKEFEATUREHOPEFUL,ZCABBAGESOCKEASEMINUTE,"
+    "ZMUFFINDRYERDRAWFORTUNE,ZPROBLEMCLUBPOPOVERJELLY,ZGIVEVIVIDDIVINEMEANING,"
+    "ZGENENATURALHEARINGKITE,ZGENERALRESORTSKYOPEN,ZLETTUCEBIRDMEETDEBATE,"
+    "ZBASEGOUDAREGULARFORGIVE,ZCHARGECLICKHUMANEHIRE,ZPLANETFAMILYPUREMEMORY,"
+    "ZMINORWAYPAPERCLASSY,ZCAPYEARLYRIVETBRUSH,ZSIZETOEAWARDFRESH,"
+    "ZARSENICSAMPLEWAITMUON,ZSQUAREGLEEFULCHILDLIGHT,ZSHINYASSISTLIVINGCRAB,"
+    "ZCORNERANCHORTAPEDIVER,ZDECADEJOYOUSWAVEHABIT,ZTRAVELDRIVERCONTESTLILY,"
+    "ZFLYINGDOCTORTABLEMELODY,ZSHARKJUSTFRUITMOVIE,ZFAMILYVISUALOWNERMATTER,"
+    "ZFARMERMORNINGMIRRORCONCERN,ZGIFTICEFISHGLUEHAIR,ZOUTSIDEPEAHENCOUNTICE,"
+    "ZSPREADMOTORBISCUITBACON,ZWISHHITSKINMOTOR,ZHOLIDAYHEADPONYDETAIL,"
+    "ZWOODPOETRYCOBBLERBENCH,ZAIRFORGIVEHEADFROG,ZBROWBALANCEKEYCHOWDER,"
+    "ZDISHKEEPBLESTMONITOR,ZCLAMBITARUGULAFAJITA,ZPLIERSPRINTASKOREGANO,"
+    "ZRADIANTWHENTRYCARD,ZDELAYOUTCOMEHORNAGENCY,ZPURECAKEVIVIDNEATLY,"
+    "ZPATTERNCLORINEGRANDCOLBY,ZHANDYREPAIRPROTONAIRPORT,ZAGEREEDFROGBASKET,"
+    "ZSORTMISTYQUOTECABBAGE,ZFOOTTAPWORDENTRY,ZRESOLVEWRISTWRAPAPPLE,"
+    "ZDILLASKHOKILEMON,ZFILLSTOPLAWJOYFUL,ZACTIONRANGEELEGANTNEUTRON,"
+    "ZRESORTYARDGREENLET,ZCREAMEVENINGLIPBRANCH,ZWHALEMATHAVOCADOCOPPER,"
+    "ZGRAYSURVEYWIRELOVE,ZBELLYCRASHITEMLACK,ZHANGERLITHIUMDINNERMEET,"
+    "ZCARRYFLOORMINNOWDRAGON,ZMALLEQUIPTHANKSGLUE,ZTERMFITTINGHOUSINGCOMMAND,"
+    "ZONERELEASEAVERAGENURSE,ZLACEADDRESSGROUNDCAREFUL"
+    " FROM ZLOOKSLIKECOREDATA WHERE ZPK=?1;"
+  );
+  for(i=0; i<n; i++){
+    x1 = speedtest1_random()%nRow;
+    sqlite3_bind_int(g.pStmt, 1, x1);
+    speedtest1_run();
+  }
+  speedtest1_end_test();
+}
+
+/*
+*/
+void testset_trigger(void){
+  int jj, ii;
+  char zNum[2000];              /* A number name */
+
+  const int NROW  = 500*g.szTest;
+  const int NROW2 = 100*g.szTest;
+
+  speedtest1_exec(
+      "BEGIN;"
+      "CREATE TABLE z1(rowid INTEGER PRIMARY KEY, i INTEGER, t TEXT);"
+      "CREATE TABLE z2(rowid INTEGER PRIMARY KEY, i INTEGER, t TEXT);"
+      "CREATE TABLE t3(rowid INTEGER PRIMARY KEY, i INTEGER, t TEXT);"
+      "CREATE VIEW v1 AS SELECT rowid, i, t FROM z1;"
+      "CREATE VIEW v2 AS SELECT rowid, i, t FROM z2;"
+      "CREATE VIEW v3 AS SELECT rowid, i, t FROM t3;"
+  );
+  for(jj=1; jj<=3; jj++){
+    speedtest1_prepare("INSERT INTO t%d VALUES(NULL,?1,?2)", jj);
+    for(ii=0; ii<NROW; ii++){
+      int x1 = speedtest1_random() % NROW;
+      speedtest1_numbername(x1, zNum, sizeof(zNum));
+      sqlite3_bind_int(g.pStmt, 1, x1);
+      sqlite3_bind_text(g.pStmt, 2, zNum, -1, SQLITE_STATIC);
+      speedtest1_run();
+    }
+  }
+  speedtest1_exec(
+      "CREATE INDEX i1 ON z1(t);"
+      "CREATE INDEX i2 ON z2(t);"
+      "CREATE INDEX i3 ON t3(t);"
+      "COMMIT;"
+  );
+
+  speedtest1_begin_test(100, "speed4p-join1");
+  speedtest1_prepare(
+      "SELECT * FROM z1, z2, t3 WHERE z1.oid = z2.oid AND z2.oid = t3.oid"
+  );
+  speedtest1_run();
+  speedtest1_end_test();
+
+  speedtest1_begin_test(110, "speed4p-join2");
+  speedtest1_prepare(
+      "SELECT * FROM z1, z2, t3 WHERE z1.t = z2.t AND z2.t = t3.t"
+  );
+  speedtest1_run();
+  speedtest1_end_test();
+
+  speedtest1_begin_test(120, "speed4p-view1");
+  for(jj=1; jj<=3; jj++){
+    speedtest1_prepare("SELECT * FROM v%d WHERE rowid = ?", jj);
+    for(ii=0; ii<NROW2; ii+=3){
+      sqlite3_bind_int(g.pStmt, 1, ii*3);
+      speedtest1_run();
+    }
+  }
+  speedtest1_end_test();
+
+  speedtest1_begin_test(130, "speed4p-table1");
+  for(jj=1; jj<=3; jj++){
+    speedtest1_prepare("SELECT * FROM t%d WHERE rowid = ?", jj);
+    for(ii=0; ii<NROW2; ii+=3){
+      sqlite3_bind_int(g.pStmt, 1, ii*3);
+      speedtest1_run();
+    }
+  }
+  speedtest1_end_test();
+
+  speedtest1_begin_test(140, "speed4p-table1");
+  for(jj=1; jj<=3; jj++){
+    speedtest1_prepare("SELECT * FROM t%d WHERE rowid = ?", jj);
+    for(ii=0; ii<NROW2; ii+=3){
+      sqlite3_bind_int(g.pStmt, 1, ii*3);
+      speedtest1_run();
+    }
+  }
+  speedtest1_end_test();
+
+  speedtest1_begin_test(150, "speed4p-subselect1");
+  speedtest1_prepare("SELECT "
+      "(SELECT t FROM z1 WHERE rowid = ?1),"
+      "(SELECT t FROM z2 WHERE rowid = ?1),"
+      "(SELECT t FROM t3 WHERE rowid = ?1)"
+  );
+  for(jj=0; jj<NROW2; jj++){
+    sqlite3_bind_int(g.pStmt, 1, jj*3);
+    speedtest1_run();
+  }
+  speedtest1_end_test();
+
+  speedtest1_begin_test(160, "speed4p-rowid-update");
+  speedtest1_exec("BEGIN");
+  speedtest1_prepare("UPDATE z1 SET i=i+1 WHERE rowid=?1");
+  for(jj=0; jj<NROW2; jj++){
+    sqlite3_bind_int(g.pStmt, 1, jj);
+    speedtest1_run();
+  }
+  speedtest1_exec("COMMIT");
+  speedtest1_end_test();
+
+  speedtest1_exec("CREATE TABLE t5(t TEXT PRIMARY KEY, i INTEGER);");
+  speedtest1_begin_test(170, "speed4p-insert-ignore");
+  speedtest1_exec("INSERT OR IGNORE INTO t5 SELECT t, i FROM z1");
+  speedtest1_end_test();
+
+  speedtest1_exec(
+      "CREATE TABLE log(op TEXT, r INTEGER, i INTEGER, t TEXT);"
+      "CREATE TABLE t4(rowid INTEGER PRIMARY KEY, i INTEGER, t TEXT);"
+      "CREATE TRIGGER t4_trigger1 AFTER INSERT ON t4 BEGIN"
+      "  INSERT INTO log VALUES('INSERT INTO t4', new.rowid, new.i, new.t);"
+      "END;"
+      "CREATE TRIGGER t4_trigger2 AFTER UPDATE ON t4 BEGIN"
+      "  INSERT INTO log VALUES('UPDATE OF t4', new.rowid, new.i, new.t);"
+      "END;"
+      "CREATE TRIGGER t4_trigger3 AFTER DELETE ON t4 BEGIN"
+      "  INSERT INTO log VALUES('DELETE OF t4', old.rowid, old.i, old.t);"
+      "END;"
+      "BEGIN;"
+  );
+
+  speedtest1_begin_test(180, "speed4p-trigger1");
+  speedtest1_prepare("INSERT INTO t4 VALUES(NULL, ?1, ?2)");
+  for(jj=0; jj<NROW2; jj++){
+    speedtest1_numbername(jj, zNum, sizeof(zNum));
+    sqlite3_bind_int(g.pStmt, 1, jj);
+    sqlite3_bind_text(g.pStmt, 2, zNum, -1, SQLITE_STATIC);
+    speedtest1_run();
+  }
+  speedtest1_end_test();
+
+  /*
+  ** Note: Of the queries, only half actually update a row. This property
+  ** was copied over from speed4p.test, where it was probably introduced
+  ** inadvertantly.
+  */
+  speedtest1_begin_test(190, "speed4p-trigger2");
+  speedtest1_prepare("UPDATE t4 SET i = ?1, t = ?2 WHERE rowid = ?3");
+  for(jj=1; jj<=NROW2*2; jj+=2){
+    speedtest1_numbername(jj*2, zNum, sizeof(zNum));
+    sqlite3_bind_int(g.pStmt, 1, jj*2);
+    sqlite3_bind_text(g.pStmt, 2, zNum, -1, SQLITE_STATIC);
+    sqlite3_bind_int(g.pStmt, 3, jj);
+    speedtest1_run();
+  }
+  speedtest1_end_test();
+
+  /*
+  ** Note: Same again.
+  */
+  speedtest1_begin_test(200, "speed4p-trigger3");
+  speedtest1_prepare("DELETE FROM t4 WHERE rowid = ?1");
+  for(jj=1; jj<=NROW2*2; jj+=2){
+    sqlite3_bind_int(g.pStmt, 1, jj*2);
+    speedtest1_run();
+  }
+  speedtest1_end_test();
+  speedtest1_exec("COMMIT");
+
+  /*
+  ** The following block contains the same tests as the above block that
+  ** tests triggers, with one crucial difference: no triggers are defined.
+  ** So the difference in speed between these tests and the preceding ones
+  ** is the amount of time taken to compile and execute the trigger programs.
+  */
+  speedtest1_exec(
+      "DROP TABLE t4;"
+      "DROP TABLE log;"
+      "VACUUM;"
+      "CREATE TABLE t4(rowid INTEGER PRIMARY KEY, i INTEGER, t TEXT);"
+      "BEGIN;"
+  );
+  speedtest1_begin_test(210, "speed4p-notrigger1");
+  speedtest1_prepare("INSERT INTO t4 VALUES(NULL, ?1, ?2)");
+  for(jj=0; jj<NROW2; jj++){
+    speedtest1_numbername(jj, zNum, sizeof(zNum));
+    sqlite3_bind_int(g.pStmt, 1, jj);
+    sqlite3_bind_text(g.pStmt, 2, zNum, -1, SQLITE_STATIC);
+    speedtest1_run();
+  }
+  speedtest1_end_test();
+  speedtest1_begin_test(210, "speed4p-notrigger2");
+  speedtest1_prepare("UPDATE t4 SET i = ?1, t = ?2 WHERE rowid = ?3");
+  for(jj=1; jj<=NROW2*2; jj+=2){
+    speedtest1_numbername(jj*2, zNum, sizeof(zNum));
+    sqlite3_bind_int(g.pStmt, 1, jj*2);
+    sqlite3_bind_text(g.pStmt, 2, zNum, -1, SQLITE_STATIC);
+    sqlite3_bind_int(g.pStmt, 3, jj);
+    speedtest1_run();
+  }
+  speedtest1_end_test();
+  speedtest1_begin_test(220, "speed4p-notrigger3");
+  speedtest1_prepare("DELETE FROM t4 WHERE rowid = ?1");
+  for(jj=1; jj<=NROW2*2; jj+=2){
+    sqlite3_bind_int(g.pStmt, 1, jj*2);
+    speedtest1_run();
+  }
+  speedtest1_end_test();
+  speedtest1_exec("COMMIT");
+}
+
+/*
+** A testset used for debugging speedtest1 itself.
+*/
+void testset_debug1(void){
+  unsigned i, n;
+  unsigned x1, x2;
+  char zNum[2000];              /* A number name */
+
+  n = g.szTest;
+  for(i=1; i<=n; i++){
+    x1 = swizzle(i, n);
+    x2 = swizzle(x1, n);
+    speedtest1_numbername(x1, zNum, sizeof(zNum));
+    printf("%5d %5d %5d %s\n", i, x1, x2, zNum);
+  }
+}
+
+/*
+** This testset focuses on the speed of parsing numeric literals (integers
+** and real numbers). This was added to test the impact of allowing "_"
+** characters to appear in numeric SQL literals to make them easier to read. 
+** For example, "SELECT 1_000_000;" instead of "SELECT 1000000;".
+*/
+void testset_parsenumber(void){
+  const char *zSql1 = "SELECT 1, 12, 123, 1234, 12345, 123456";
+  const char *zSql2 = "SELECT 8227256643844975616, 7932208612563860480, "
+                      "2010730661871032832, 9138463067404021760, "
+                      "2557616153664746496, 2557616153664746496";
+  const char *zSql3 = "SELECT 1.0, 1.2, 1.23, 123.4, 1.2345, 1.23456";
+  const char *zSql4 = "SELECT 8.227256643844975616, 7.932208612563860480, "
+                      "2.010730661871032832, 9.138463067404021760, "
+                      "2.557616153664746496, 2.557616153664746496";
+
+  const int NROW = 100*g.szTest;
+  int ii;
+
+  speedtest1_begin_test(100, "parsing small integers");
+  for(ii=0; ii<NROW; ii++){
+    sqlite3_exec(g.db, zSql1, 0, 0, 0);
+  }
+  speedtest1_end_test();
+
+  speedtest1_begin_test(110, "parsing large integers");
+  for(ii=0; ii<NROW; ii++){
+    sqlite3_exec(g.db, zSql2, 0, 0, 0);
+  }
+  speedtest1_end_test();
+
+  speedtest1_begin_test(200, "parsing small reals");
+  for(ii=0; ii<NROW; ii++){
+    sqlite3_exec(g.db, zSql3, 0, 0, 0);
+  }
+  speedtest1_end_test();
+
+  speedtest1_begin_test(210, "parsing large reals");
+  for(ii=0; ii<NROW; ii++){
+    sqlite3_exec(g.db, zSql4, 0, 0, 0);
+  }
+  speedtest1_end_test();
+}
+
+#ifdef __linux__
+#include <sys/types.h>
+#include <unistd.h>
+
+/*
+** Attempt to display I/O stats on Linux using /proc/PID/io
+*/
+static void displayLinuxIoStats(FILE *out){
+  FILE *in;
+  char z[200];
+  sqlite3_snprintf(sizeof(z), z, "/proc/%d/io", getpid());
+  in = fopen(z, "rb");
+  if( in==0 ) return;
+  while( fgets(z, sizeof(z), in)!=0 ){
+    static const struct {
+      const char *zPattern;
+      const char *zDesc;
+    } aTrans[] = {
+      { "rchar: ",                  "Bytes received by read():" },
+      { "wchar: ",                  "Bytes sent to write():"    },
+      { "syscr: ",                  "Read() system calls:"      },
+      { "syscw: ",                  "Write() system calls:"     },
+      { "read_bytes: ",             "Bytes rcvd from storage:"  },
+      { "write_bytes: ",            "Bytes sent to storage:"    },
+      { "cancelled_write_bytes: ",  "Cancelled write bytes:"    },
+    };
+    int i;
+    for(i=0; i<sizeof(aTrans)/sizeof(aTrans[0]); i++){
+      int n = (int)strlen(aTrans[i].zPattern);
+      if( strncmp(aTrans[i].zPattern, z, n)==0 ){
+        fprintf(out, "-- %-28s %s", aTrans[i].zDesc, &z[n]);
+        break;
+      }
+    }
+  }
+  fclose(in);
+}   
+#endif
+
+#if SQLITE_VERSION_NUMBER<3006018
+#  define sqlite3_sourceid(X) "(before 3.6.18)"
+#endif
+
+#if SQLITE_CKSUMVFS_STATIC
+int sqlite3_register_cksumvfs(const char*);
+#endif
+
+static int xCompileOptions(void *pCtx, int nVal, char **azVal, char **azCol){
+  printf("-- Compile option: %s\n", azVal[0]);
+  return SQLITE_OK;
+}
+int main(int argc, char **argv){
+  int doAutovac = 0;            /* True for --autovacuum */
+  int cacheSize = 0;            /* Desired cache size.  0 means default */
+  int doExclusive = 0;          /* True for --exclusive */
+  int doFullFSync = 0;          /* True for --fullfsync */
+  int nHeap = 0, mnHeap = 0;    /* Heap size from --heap */
+  int doIncrvac = 0;            /* True for --incrvacuum */
+  const char *zJMode = 0;       /* Journal mode */
+  const char *zKey = 0;         /* Encryption key */
+  int nLook = -1, szLook = 0;   /* --lookaside configuration */
+  int noSync = 0;               /* True for --nosync */
+  int pageSize = 0;             /* Desired page size.  0 means default */
+  int nPCache = 0, szPCache = 0;/* --pcache configuration */
+  int doPCache = 0;             /* True if --pcache is seen */
+  int showStats = 0;            /* True for --stats */
+  int nThread = 0;              /* --threads value */
+  int mmapSize = 0;             /* How big of a memory map to use */
+  int memDb = 0;                /* --memdb.  Use an in-memory database */
+  int openFlags = SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE
+    ;                           /* SQLITE_OPEN_xxx flags. */
+  char *zTSet = "main";         /* Which --testset torun */
+  const char * zVfs = 0;        /* --vfs NAME */
+  int doTrace = 0;              /* True for --trace */
+  const char *zEncoding = 0;    /* --utf16be or --utf16le */
+  const char *zDbName = 0;      /* Name of the test database */
+
+  void *pHeap = 0;              /* Allocated heap space */
+  void *pLook = 0;              /* Allocated lookaside space */
+  void *pPCache = 0;            /* Allocated storage for pcache */
+  int iCur, iHi;                /* Stats values, current and "highwater" */
+  int i;                        /* Loop counter */
+  int rc;                       /* API return code */
+
+#ifdef SQLITE_SPEEDTEST1_WASM
+  /* Resetting all state is important for the WASM build, which may
+  ** call main() multiple times. */
+  memset(&g, 0, sizeof(g));
+  iTestNumber = 0;
+#endif
+#ifdef SQLITE_CKSUMVFS_STATIC
+  sqlite3_register_cksumvfs(0);
+#endif
+  /*
+  ** Confirms that argc has at least N arguments following argv[i]. */
+#define ARGC_VALUE_CHECK(N)                                       \
+  if( i>=argc-(N) ) fatal_error("missing argument on %s\n", argv[i])
+  /* Display the version of SQLite being tested */
+  printf("-- Speedtest1 for SQLite %s %.48s\n",
+         sqlite3_libversion(), sqlite3_sourceid());
+
+  /* Process command-line arguments */
+  g.zWR = "";
+  g.zNN = "";
+  g.zPK = "UNIQUE";
+  g.szTest = 100;
+  g.nRepeat = 1;
+  for(i=1; i<argc; i++){
+    const char *z = argv[i];
+    if( z[0]=='-' ){
+      do{ z++; }while( z[0]=='-' );
+      if( strcmp(z,"autovacuum")==0 ){
+        doAutovac = 1;
+      }else if( strcmp(z,"big-transactions")==0 ){
+        g.doBigTransactions = 1;
+      }else if( strcmp(z,"cachesize")==0 ){
+        ARGC_VALUE_CHECK(1);
+        cacheSize = integerValue(argv[++i]);
+      }else if( strcmp(z,"exclusive")==0 ){
+        doExclusive = 1;
+      }else if( strcmp(z,"fullfsync")==0 ){
+        doFullFSync = 1;
+      }else if( strcmp(z,"checkpoint")==0 ){
+        g.doCheckpoint = 1;
+      }else if( strcmp(z,"explain")==0 ){
+        g.bSqlOnly = 1;
+        g.bExplain = 1;
+      }else if( strcmp(z,"heap")==0 ){
+        ARGC_VALUE_CHECK(2);
+        nHeap = integerValue(argv[i+1]);
+        mnHeap = integerValue(argv[i+2]);
+        i += 2;
+      }else if( strcmp(z,"incrvacuum")==0 ){
+        doIncrvac = 1;
+      }else if( strcmp(z,"journal")==0 ){
+        ARGC_VALUE_CHECK(1);
+        zJMode = argv[++i];
+      }else if( strcmp(z,"key")==0 ){
+        ARGC_VALUE_CHECK(1);
+        zKey = argv[++i];
+      }else if( strcmp(z,"lookaside")==0 ){
+        ARGC_VALUE_CHECK(2);
+        nLook = integerValue(argv[i+1]);
+        szLook = integerValue(argv[i+2]);
+        i += 2;
+      }else if( strcmp(z,"memdb")==0 ){
+        memDb = 1;
+#if SQLITE_VERSION_NUMBER>=3006000
+      }else if( strcmp(z,"multithread")==0 ){
+        sqlite3_config(SQLITE_CONFIG_MULTITHREAD);
+      }else if( strcmp(z,"nomemstat")==0 ){
+        sqlite3_config(SQLITE_CONFIG_MEMSTATUS, 0);
+#endif
+#if SQLITE_VERSION_NUMBER>=3007017
+      }else if( strcmp(z, "mmap")==0 ){
+        ARGC_VALUE_CHECK(1);
+        mmapSize = integerValue(argv[++i]);
+ #endif
+      }else if( strcmp(z,"nomutex")==0 ){
+        openFlags |= SQLITE_OPEN_NOMUTEX;
+      }else if( strcmp(z,"nosync")==0 ){
+        noSync = 1;
+      }else if( strcmp(z,"notnull")==0 ){
+        g.zNN = "NOT NULL";
+      }else if( strcmp(z,"output")==0 ){
+#ifdef SPEEDTEST_OMIT_HASH
+        fatal_error("The --output option is not supported with"
+                    " -DSPEEDTEST_OMIT_HASH\n");
+#else
+        ARGC_VALUE_CHECK(1);
+        i++;
+        if( strcmp(argv[i],"-")==0 ){
+          g.hashFile = stdout;
+        }else{
+          g.hashFile = fopen(argv[i], "wb");
+          if( g.hashFile==0 ){
+            fatal_error("cannot open \"%s\" for writing\n", argv[i]);
+          }
+        }
+#endif
+      }else if( strcmp(z,"pagesize")==0 ){
+        ARGC_VALUE_CHECK(1);
+        pageSize = integerValue(argv[++i]);
+      }else if( strcmp(z,"pcache")==0 ){
+        ARGC_VALUE_CHECK(2);
+        nPCache = integerValue(argv[i+1]);
+        szPCache = integerValue(argv[i+2]);
+        doPCache = 1;
+        i += 2;
+      }else if( strcmp(z,"primarykey")==0 ){
+        g.zPK = "PRIMARY KEY";
+      }else if( strcmp(z,"repeat")==0 ){
+        ARGC_VALUE_CHECK(1);
+        g.nRepeat = integerValue(argv[++i]);
+      }else if( strcmp(z,"reprepare")==0 ){
+        g.bReprepare = 1;
+#if SQLITE_VERSION_NUMBER>=3006000
+      }else if( strcmp(z,"serialized")==0 ){
+        sqlite3_config(SQLITE_CONFIG_SERIALIZED);
+      }else if( strcmp(z,"singlethread")==0 ){
+        sqlite3_config(SQLITE_CONFIG_SINGLETHREAD);
+#endif
+      }else if( strcmp(z,"script")==0 ){
+        ARGC_VALUE_CHECK(1);
+        if( g.pScript ) fclose(g.pScript);
+        g.pScript = fopen(argv[++i], "wb");
+        if( g.pScript==0 ){
+          fatal_error("unable to open output file \"%s\"\n", argv[i]);
+        }
+      }else if( strcmp(z,"sqlonly")==0 ){
+        g.bSqlOnly = 1;
+      }else if( strcmp(z,"shrink-memory")==0 ){
+        g.bMemShrink = 1;
+      }else if( strcmp(z,"size")==0 ){
+        ARGC_VALUE_CHECK(1);
+        g.szTest = integerValue(argv[++i]);
+      }else if( strcmp(z,"stats")==0 ){
+        showStats = 1;
+      }else if( strcmp(z,"temp")==0 ){
+        ARGC_VALUE_CHECK(1);
+        i++;
+        if( argv[i][0]<'0' || argv[i][0]>'9' || argv[i][1]!=0 ){
+          fatal_error("argument to --temp should be integer between 0 and 9");
+        }
+        g.eTemp = argv[i][0] - '0';
+      }else if( strcmp(z,"testset")==0 ){
+        ARGC_VALUE_CHECK(1);
+        zTSet = argv[++i];
+      }else if( strcmp(z,"trace")==0 ){
+        doTrace = 1;
+      }else if( strcmp(z,"threads")==0 ){
+        ARGC_VALUE_CHECK(1);
+        nThread = integerValue(argv[++i]);
+      }else if( strcmp(z,"utf16le")==0 ){
+        zEncoding = "utf16le";
+      }else if( strcmp(z,"utf16be")==0 ){
+        zEncoding = "utf16be";
+      }else if( strcmp(z,"verify")==0 ){
+        g.bVerify = 1;
+#ifndef SPEEDTEST_OMIT_HASH
+        HashInit();
+#endif
+      }else if( strcmp(z,"vfs")==0 ){
+        ARGC_VALUE_CHECK(1);
+        zVfs = argv[++i];
+      }else if( strcmp(z,"reserve")==0 ){
+        ARGC_VALUE_CHECK(1);
+        g.nReserve = atoi(argv[++i]);
+      }else if( strcmp(z,"stmtscanstatus")==0 ){
+        g.stmtScanStatus = 1;
+      }else if( strcmp(z,"without-rowid")==0 ){
+        if( strstr(g.zWR,"WITHOUT")!=0 ){
+          /* no-op */
+        }else if( strstr(g.zWR,"STRICT")!=0 ){
+          g.zWR = "WITHOUT ROWID,STRICT";
+        }else{
+          g.zWR = "WITHOUT ROWID";
+        }
+        g.zPK = "PRIMARY KEY";
+      }else if( strcmp(z,"strict")==0 ){
+        if( strstr(g.zWR,"STRICT")!=0 ){
+          /* no-op */
+        }else if( strstr(g.zWR,"WITHOUT")!=0 ){
+          g.zWR = "WITHOUT ROWID,STRICT";
+        }else{
+          g.zWR = "STRICT";
+        }
+      }else if( strcmp(z, "help")==0 || strcmp(z,"?")==0 ){
+        printf(zHelp, argv[0]);
+        exit(0);
+      }else{
+        fatal_error("unknown option: %s\nUse \"%s -?\" for help\n",
+                    argv[i], argv[0]);
+      }
+    }else if( zDbName==0 ){
+      zDbName = argv[i];
+    }else{
+      fatal_error("surplus argument: %s\nUse \"%s -?\" for help\n",
+                  argv[i], argv[0]);
+    }
+  }
+#undef ARGC_VALUE_CHECK
+#if SQLITE_VERSION_NUMBER>=3006001
+  if( nHeap>0 ){
+    pHeap = malloc( nHeap );
+    if( pHeap==0 ) fatal_error("cannot allocate %d-byte heap\n", nHeap);
+    rc = sqlite3_config(SQLITE_CONFIG_HEAP, pHeap, nHeap, mnHeap);
+    if( rc ) fatal_error("heap configuration failed: %d\n", rc);
+  }
+  if( doPCache ){
+    if( nPCache>0 && szPCache>0 ){
+      pPCache = malloc( nPCache*(sqlite3_int64)szPCache );
+      if( pPCache==0 ) fatal_error("cannot allocate %lld-byte pcache\n",
+                                   nPCache*(sqlite3_int64)szPCache);
+    }
+    rc = sqlite3_config(SQLITE_CONFIG_PAGECACHE, pPCache, szPCache, nPCache);
+    if( rc ) fatal_error("pcache configuration failed: %d\n", rc);
+  }
+  if( nLook>=0 ){
+    sqlite3_config(SQLITE_CONFIG_LOOKASIDE, 0, 0);
+  }
+#endif
+  sqlite3_initialize();
+
+  if( zDbName!=0 ){
+    sqlite3_vfs *pVfs = sqlite3_vfs_find(zVfs);
+    /* For some VFSes, e.g. opfs, unlink() is not sufficient. Use the
+    ** selected (or default) VFS's xDelete method to delete the
+    ** database. This is specifically important for the "opfs" VFS
+    ** when running from a WASM build of speedtest1, so that the db
+    ** can be cleaned up properly. For historical compatibility, we'll
+    ** also simply unlink(). */
+    if( pVfs!=0 ){
+      pVfs->xDelete(pVfs, zDbName, 1);
+    }
+    unlink(zDbName);
+  }
+
+  /* Open the database and the input file */
+  if( sqlite3_open_v2(memDb ? ":memory:" : zDbName, &g.db,
+                      openFlags, zVfs) ){
+    fatal_error("Cannot open database file: %s\n", zDbName);
+  }
+#if SQLITE_VERSION_NUMBER>=3006001
+  if( nLook>0 && szLook>0 ){
+    pLook = malloc( nLook*szLook );
+    rc = sqlite3_db_config(g.db, SQLITE_DBCONFIG_LOOKASIDE,pLook,szLook,nLook);
+    if( rc ) fatal_error("lookaside configuration failed: %d\n", rc);
+  }
+#endif
+  if( g.nReserve>0 ){
+    sqlite3_file_control(g.db, 0, SQLITE_FCNTL_RESERVE_BYTES, &g.nReserve);
+  }
+  if( g.stmtScanStatus ){
+    sqlite3_db_config(g.db, SQLITE_DBCONFIG_STMT_SCANSTATUS, 1, 0);
+  }
+
+  /* Set database connection options */
+  sqlite3_create_function(g.db, "random", 0, SQLITE_UTF8, 0, randomFunc, 0, 0);
+#ifndef SQLITE_OMIT_DEPRECATED
+  if( doTrace ) sqlite3_trace(g.db, traceCallback, 0);
+#endif
+  if( memDb>0 ){
+    speedtest1_exec("PRAGMA temp_store=memory");
+  }
+  if( mmapSize>0 ){
+    speedtest1_exec("PRAGMA mmap_size=%d", mmapSize);
+  }
+  speedtest1_exec("PRAGMA threads=%d", nThread);
+  if( zKey ){
+    speedtest1_exec("PRAGMA key('%s')", zKey);
+  }
+  if( zEncoding ){
+    speedtest1_exec("PRAGMA encoding=%s", zEncoding);
+  }
+  if( doAutovac ){
+    speedtest1_exec("PRAGMA auto_vacuum=FULL");
+  }else if( doIncrvac ){
+    speedtest1_exec("PRAGMA auto_vacuum=INCREMENTAL");
+  }
+  if( pageSize ){
+    speedtest1_exec("PRAGMA page_size=%d", pageSize);
+  }
+  if( cacheSize ){
+    speedtest1_exec("PRAGMA cache_size=%d", cacheSize);
+  }
+  if( noSync ){
+    speedtest1_exec("PRAGMA synchronous=OFF");
+  }else if( doFullFSync ){
+    speedtest1_exec("PRAGMA fullfsync=ON");
+  }
+  if( doExclusive ){
+    speedtest1_exec("PRAGMA locking_mode=EXCLUSIVE");
+  }
+  if( zJMode ){
+    speedtest1_exec("PRAGMA journal_mode=%s", zJMode);
+  }
+
+  if( g.bExplain ) printf(".explain\n.echo on\n");
+  do{
+    char *zThisTest = zTSet;
+    char *zComma = strchr(zThisTest,',');
+    if( zComma ){
+      *zComma = 0;
+      zTSet = zComma+1;
+    }else{
+      zTSet = "";
+    }
+    if( g.iTotal>0 || zComma!=0 ){
+      printf("       Begin testset \"%s\"\n", zThisTest);
+    }
+    if( strcmp(zThisTest,"main")==0 ){
+      testset_main();
+    }else if( strcmp(zThisTest,"debug1")==0 ){
+      testset_debug1();
+    }else if( strcmp(zThisTest,"orm")==0 ){
+      testset_orm();
+    }else if( strcmp(zThisTest,"cte")==0 ){
+      testset_cte();
+    }else if( strcmp(zThisTest,"fp")==0 ){
+      testset_fp();
+    }else if( strcmp(zThisTest,"trigger")==0 ){
+      testset_trigger();
+    }else if( strcmp(zThisTest,"parsenumber")==0 ){
+      testset_parsenumber();
+    }else if( strcmp(zThisTest,"rtree")==0 ){
+#ifdef SQLITE_ENABLE_RTREE
+      testset_rtree(6, 147);
+#else
+      fatal_error("compile with -DSQLITE_ENABLE_RTREE to enable "
+                  "the R-Tree tests\n");
+#endif
+    }else{
+      fatal_error("unknown testset: \"%s\"\n"
+                  "Choices: cte debug1 fp main orm rtree trigger\n",
+                   zThisTest);
+    }
+    if( zTSet[0] ){
+      char *zSql, *zObj;
+      speedtest1_begin_test(999, "Reset the database");
+      while( 1 ){
+        zObj = speedtest1_once(
+             "SELECT name FROM main.sqlite_master"
+             " WHERE sql LIKE 'CREATE %%TABLE%%'");
+        if( zObj==0 ) break;
+        zSql = sqlite3_mprintf("DROP TABLE main.\"%w\"", zObj);
+        speedtest1_exec(zSql);
+        sqlite3_free(zSql);
+        sqlite3_free(zObj);
+      }
+      while( 1 ){
+        zObj = speedtest1_once(
+             "SELECT name FROM temp.sqlite_master"
+             " WHERE sql LIKE 'CREATE %%TABLE%%'");
+        if( zObj==0 ) break;
+        zSql = sqlite3_mprintf("DROP TABLE main.\"%w\"", zObj);
+        speedtest1_exec(zSql);
+        sqlite3_free(zSql);
+        sqlite3_free(zObj);
+      }
+      speedtest1_end_test();
+    }
+  }while( zTSet[0] );
+  speedtest1_final();
+
+  if( showStats ){
+    sqlite3_exec(g.db, "PRAGMA compile_options", xCompileOptions, 0, 0);
+  }
+
+  /* Database connection statistics printed after both prepared statements
+  ** have been finalized */
+#if SQLITE_VERSION_NUMBER>=3007009
+  if( showStats ){
+    sqlite3_db_status(g.db, SQLITE_DBSTATUS_LOOKASIDE_USED, &iCur, &iHi, 0);
+    printf("-- Lookaside Slots Used:        %d (max %d)\n", iCur,iHi);
+    sqlite3_db_status(g.db, SQLITE_DBSTATUS_LOOKASIDE_HIT, &iCur, &iHi, 0);
+    printf("-- Successful lookasides:       %d\n", iHi);
+    sqlite3_db_status(g.db, SQLITE_DBSTATUS_LOOKASIDE_MISS_SIZE, &iCur,&iHi,0);
+    printf("-- Lookaside size faults:       %d\n", iHi);
+    sqlite3_db_status(g.db, SQLITE_DBSTATUS_LOOKASIDE_MISS_FULL, &iCur,&iHi,0);
+    printf("-- Lookaside OOM faults:        %d\n", iHi);
+    sqlite3_db_status(g.db, SQLITE_DBSTATUS_CACHE_USED, &iCur, &iHi, 0);
+    printf("-- Pager Heap Usage:            %d bytes\n", iCur);
+    sqlite3_db_status(g.db, SQLITE_DBSTATUS_CACHE_HIT, &iCur, &iHi, 1);
+    printf("-- Page cache hits:             %d\n", iCur);
+    sqlite3_db_status(g.db, SQLITE_DBSTATUS_CACHE_MISS, &iCur, &iHi, 1);
+    printf("-- Page cache misses:           %d\n", iCur);
+#if SQLITE_VERSION_NUMBER>=3007012
+    sqlite3_db_status(g.db, SQLITE_DBSTATUS_CACHE_WRITE, &iCur, &iHi, 1);
+    printf("-- Page cache writes:           %d\n", iCur); 
+#endif
+    sqlite3_db_status(g.db, SQLITE_DBSTATUS_SCHEMA_USED, &iCur, &iHi, 0);
+    printf("-- Schema Heap Usage:           %d bytes\n", iCur); 
+    sqlite3_db_status(g.db, SQLITE_DBSTATUS_STMT_USED, &iCur, &iHi, 0);
+    printf("-- Statement Heap Usage:        %d bytes\n", iCur); 
+  }
+#endif
+
+  sqlite3_close(g.db);
+
+#if SQLITE_VERSION_NUMBER>=3006001
+  /* Global memory usage statistics printed after the database connection
+  ** has closed.  Memory usage should be zero at this point. */
+  if( showStats ){
+    sqlite3_status(SQLITE_STATUS_MEMORY_USED, &iCur, &iHi, 0);
+    printf("-- Memory Used (bytes):         %d (max %d)\n", iCur,iHi);
+#if SQLITE_VERSION_NUMBER>=3007000
+    sqlite3_status(SQLITE_STATUS_MALLOC_COUNT, &iCur, &iHi, 0);
+    printf("-- Outstanding Allocations:     %d (max %d)\n", iCur,iHi);
+#endif
+    sqlite3_status(SQLITE_STATUS_PAGECACHE_OVERFLOW, &iCur, &iHi, 0);
+    printf("-- Pcache Overflow Bytes:       %d (max %d)\n", iCur,iHi);
+    sqlite3_status(SQLITE_STATUS_MALLOC_SIZE, &iCur, &iHi, 0);
+    printf("-- Largest Allocation:          %d bytes\n",iHi);
+    sqlite3_status(SQLITE_STATUS_PAGECACHE_SIZE, &iCur, &iHi, 0);
+    printf("-- Largest Pcache Allocation:   %d bytes\n",iHi);
+  }
+#endif
+
+#ifdef __linux__
+  if( showStats ){
+    displayLinuxIoStats(stdout);
+  }
+#endif
+  if( g.pScript ){
+    fclose(g.pScript);
+  }
+
+  /* Release memory */
+  free( pLook );
+  free( pPCache );
+  free( pHeap );
+  return 0;
+}
+
+#ifdef SQLITE_SPEEDTEST1_WASM
+/*
+** A workaround for some inconsistent behaviour with how
+** main() does (or does not) get exported to WASM.
+*/
+int wasm_main(int argc, char **argv){
+  return main(argc, argv);
+}
+#endif
diff --git a/test/spellfix.test b/test/spellfix.test
new file mode 100644
index 0000000000000000000000000000000000000000..68bcfd5adb1a1b6f2fef7157d9f6fc8e3cbaa832
--- /dev/null
+++ b/test/spellfix.test
@@ -0,0 +1,405 @@
+# 2012 July 12
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix spellfix
+
+ifcapable !vtab { finish_test ; return }
+
+load_static_extension db spellfix nextchar
+
+set vocab {
+rabbi rabbit rabbits rabble rabid rabies raccoon raccoons race raced racer
+racers races racetrack racial racially racing rack racked racket racketeer
+racketeering racketeers rackets racking racks radar radars radial radially
+radian radiance radiant radiantly radiate radiated radiates radiating radiation
+radiations radiator radiators radical radically radicals radices radii radio
+radioactive radioastronomy radioed radiography radioing radiology radios radish
+radishes radium radius radix radon raft rafter rafters rafts rag rage raged
+rages ragged raggedly raggedness raging rags ragweed raid raided raider raiders
+raiding raids rail railed railer railers railing railroad railroaded railroader
+railroaders railroading railroads rails railway railways raiment rain rainbow
+raincoat raincoats raindrop raindrops rained rainfall rainier rainiest raining
+rains rainstorm rainy raise raised raiser raisers raises raisin raising rake
+raked rakes raking rallied rallies rally rallying ram ramble rambler rambles
+rambling ramblings ramification ramifications ramp rampage rampant rampart
+ramps ramrod rams ran ranch ranched rancher ranchers ranches ranching rancid
+random randomization randomize randomized randomizes randomly randomness randy
+rang range ranged rangeland ranger rangers ranges ranging rangy rank ranked
+ranker rankers rankest ranking rankings rankle rankly rankness ranks ransack
+ransacked ransacking ransacks ransom ransomer ransoming ransoms rant ranted
+ranter ranters ranting rants rap rapacious rape raped raper rapes rapid
+rapidity rapidly rapids rapier raping rapport rapprochement raps rapt raptly
+rapture raptures rapturous rare rarely rareness rarer rarest rarity rascal
+rascally rascals rash rasher rashly rashness rasp raspberry rasped rasping
+rasps raster rat rate rated rater raters rates rather ratification ratified
+ratifies ratify ratifying rating ratings ratio ration rational rationale
+rationales rationalities rationality rationalization rationalizations
+rationalize rationalized rationalizes rationalizing rationally rationals
+rationing rations ratios rats rattle rattled rattler rattlers rattles
+rattlesnake rattlesnakes rattling raucous ravage ravaged ravager ravagers
+ravages ravaging rave raved raven ravening ravenous ravenously ravens raves
+ravine ravines raving ravings raw rawer rawest rawly rawness ray rays raze
+razor razors re reabbreviate reabbreviated reabbreviates reabbreviating reach
+reachability reachable reachably reached reacher reaches reaching reacquired
+react reacted reacting reaction reactionaries reactionary reactions reactivate
+reactivated reactivates reactivating reactivation reactive reactively
+reactivity reactor reactors reacts read readability readable reader readers
+readied readier readies readiest readily readiness reading readings readjusted
+readout readouts reads ready readying real realest realign realigned realigning
+realigns realism realist realistic realistically realists realities reality
+}
+
+do_test 1.1 {
+  execsql { CREATE VIRTUAL TABLE t1 USING spellfix1 }
+  foreach word $vocab {
+    execsql { INSERT INTO t1(word) VALUES($word) }
+  }
+} {}
+
+foreach {tn word res} {
+  1   raxpi*     {rasping 5 rasped 5 ragweed 5 raspberry 6 rasp 4}
+  2   ril*       {rail 4 railed 4 railer 4 railers 4 railing 4}
+  3   rilis*     {realism 6 realist 6 realistic 6 realistically 6 realists 6}
+  4   reail*     {real 3 realest 3 realign 3 realigned 3 realigning 3}
+  5   ras*       {rascal 3 rascally 3 rascals 3 rash 3 rasher 3}
+  6   realistss* {realists 8 realigns 8 realistic 9 realistically 9 realest 7}
+  7   realistss  {realists 8 realist 7 realigns 8 realistic 9 realest 7}
+  8   rllation*  {realities 9 reality 7 rallied 7 railed 4}
+  9   renstom*   {rainstorm 8 ransom 6 ransomer 6 ransoming 6 ransoms 6}
+} {
+  do_execsql_test 1.2.$tn {
+    SELECT word, matchlen FROM t1 WHERE word MATCH $word 
+     ORDER BY score, word LIMIT 5
+  } $res
+}
+
+# Tests of the next_char function.
+#
+do_test 1.10 {
+  db eval {
+    CREATE TABLE vocab(w TEXT PRIMARY KEY);
+    INSERT INTO vocab SELECT word FROM t1;
+  }
+} {}
+do_execsql_test 1.11 {
+  SELECT next_char('re','vocab','w');
+} {a}
+do_execsql_test 1.11sub {
+  SELECT next_char('re','(SELECT w AS x FROM vocab)','x');
+} {a}
+do_execsql_test 1.12 {
+  SELECT next_char('r','vocab','w');
+} {ae}
+do_execsql_test 1.13 {
+  SELECT next_char('','vocab','w');
+} {r}
+do_test 1.14 {
+  catchsql {SELECT next_char('','xyzzy','a')}
+} {1 {no such table: xyzzy}}
+
+do_execsql_test 1.20 {
+  CREATE TABLE vocab2(w TEXT);
+  CREATE INDEX vocab2w ON vocab2(w COLLATE nocase);
+  INSERT INTO vocab2 VALUES('abc'), ('ABD'), ('aBe'), ('AbF');
+  SELECT next_char('ab', 'vocab2', 'w', null, 'nocase');
+} {cDeF}
+do_execsql_test 1.21 {
+  SELECT next_char('ab','vocab2','w',null,null);
+} {c}
+do_execsql_test 1.22 {
+  SELECT next_char('AB','vocab2','w',null,'NOCASE');
+} {cDeF}
+do_execsql_test 1.23 {
+  SELECT next_char('ab','vocab2','w',null,'binary');
+} {c}
+
+do_execsql_test 1.30 {
+  SELECT rowid FROM t1 WHERE word='rabbit';
+} {2}
+do_execsql_test 1.31 {
+  UPDATE t1 SET rowid=2000 WHERE word='rabbit';
+  SELECT rowid FROM t1 WHERE word='rabbit';
+} {2000}
+do_execsql_test 1.32 {
+  INSERT INTO t1(rowid, word) VALUES(3000,'melody');
+  SELECT rowid, word, matchlen FROM t1 WHERE word MATCH 'melotti'
+   ORDER BY score LIMIT 3;
+} {3000 melody 6}
+do_test 1.33 {
+  catchsql {INSERT INTO t1(rowid, word) VALUES(3000,'garden');}
+} {1 {constraint failed}}
+
+do_execsql_test 2.1 {
+  CREATE VIRTUAL TABLE t2 USING spellfix1;
+  INSERT INTO t2 (word, soundslike) VALUES('school', 'skuul');
+  INSERT INTO t2 (word, soundslike) VALUES('psalm', 'sarm');
+  SELECT word, matchlen FROM t2 WHERE word MATCH 'sar*' LIMIT 5;
+} {psalm 4}
+
+do_execsql_test 2.2 {
+  SELECT word, matchlen FROM t2 WHERE word MATCH 'skol*' LIMIT 5;
+} {school 6}
+
+set vocab {
+kangaroo kanji kappa karate keel keeled keeling keels keen keener keenest
+keenly keenness keep keeper keepers keeping keeps ken kennel kennels kept
+kerchief kerchiefs kern kernel kernels kerosene ketchup kettle
+kettles key keyboard keyboards keyed keyhole keying keynote keypad keypads keys
+keystroke keystrokes keyword keywords kick kicked kicker kickers kicking
+kickoff kicks kid kidded kiddie kidding kidnap kidnapper kidnappers kidnapping
+kidnappings kidnaps kidney kidneys kids kill killed killer killers killing
+killingly killings killjoy kills kilobit kilobits kiloblock kilobyte kilobytes
+kilogram kilograms kilohertz kilohm kilojoule kilometer kilometers kiloton
+kilovolt kilowatt kiloword kimono kin kind kinder kindergarten kindest
+kindhearted kindle kindled kindles kindling kindly kindness kindred kinds
+kinetic king kingdom kingdoms kingly kingpin kings kink kinky kinship kinsman
+kiosk kiss kissed kisser kissers kisses kissing kit kitchen kitchenette
+kitchens kite kited kites kiting kits kitten kittenish kittens kitty klaxon
+kludge kludges klystron knack knapsack knapsacks knave knaves knead kneads knee
+kneecap kneed kneeing kneel kneeled kneeling kneels knees knell knells knelt
+knew knife knifed knifes knifing knight knighted knighthood knighting knightly
+knights knit knits knives knob knobs knock knockdown knocked knocker knockers
+knocking knockout knocks knoll knolls knot knots knotted knotting know knowable
+knower knowhow knowing knowingly knowledge knowledgeable known knows knuckle
+knuckled knuckles koala kosher kudo
+}
+
+do_execsql_test 3.1 {
+  CREATE TABLE costs(iLang, cFrom, cTo, iCost);
+  INSERT INTO costs VALUES(0, 'a', 'e', 1);
+  INSERT INTO costs VALUES(0, 'e', 'i', 1);
+  INSERT INTO costs VALUES(0, 'i', 'o', 1);
+  INSERT INTO costs VALUES(0, 'o', 'u', 1);
+  INSERT INTO costs VALUES(0, 'u', 'a', 1);
+  CREATE VIRTUAL TABLE t3 USING spellfix1(edit_cost_table=costs);
+}
+
+do_test 3.2 {
+  foreach w $vocab {
+    execsql { INSERT INTO t3(word) VALUES($w) }
+  }
+} {}
+
+foreach {tn word res} {
+  1   kos*     {kosher 3 kiosk 4 kudo 2 kiss 3 kissed 3}
+  2   kellj*   {killjoy 5 kill 4 killed 4 killer 4 killers 4}
+  3   kellj    {kill 4 kills 5 killjoy 7 keel 4 killed 6}
+} {
+  do_execsql_test 3.2.$tn {
+    SELECT word, matchlen FROM t3 WHERE word MATCH $word
+     ORDER BY score, word LIMIT 5
+  } $res
+}
+
+do_execsql_test 4.0 {
+  INSERT INTO t3(command) VALUES('edit_cost_table=NULL');
+}
+foreach {tn word res} {
+  1   kosher     {kosher 0 kisser 51 kissers 76 kissed 126 kisses 126}
+  2   kellj      {keels 60 killjoy 68 kills 80 keel 120 kill 125}
+  3   kashar     {kosher 80 kisser 91 kissers 116 kissed 166 kisses 166}
+} {
+  do_execsql_test 4.1.$tn {
+    SELECT word, distance FROM t3 WHERE word MATCH $word
+     ORDER BY score, word LIMIT 5
+  } $res
+}
+do_execsql_test 5.0 {
+  CREATE TABLE costs2(iLang, cFrom, cTo, iCost);
+  INSERT INTO costs2 VALUES(0, 'a', 'o', 1);
+  INSERT INTO costs2 VALUES(0, 'e', 'o', 4);
+  INSERT INTO costs2 VALUES(0, 'i', 'o', 8);
+  INSERT INTO costs2 VALUES(0, 'u', 'o', 16);
+  INSERT INTO t3(command) VALUES('edit_cost_table="costs2"');
+}
+
+foreach {tn word res} {
+  1   kasher     {kosher 1}
+  2   kesher     {kosher 4}
+  3   kisher     {kosher 8}
+  4   kosher     {kosher 0}
+  5   kusher     {kosher 16}
+} {
+  do_execsql_test 5.1.$tn {
+    SELECT word, distance FROM t3 WHERE word MATCH $word
+     ORDER BY score, word LIMIT 1
+  } $res
+}
+
+#-------------------------------------------------------------------------
+# Try some queries by rowid.
+#
+do_execsql_test 6.1.1 {
+  SELECT word FROM t3 WHERE rowid = 10;
+} {keener}
+do_execsql_test 6.1.2 {
+  SELECT word, distance FROM t3 WHERE rowid = 10;
+} {keener {}}
+do_execsql_test 6.1.3 {
+  SELECT word, distance FROM t3 WHERE rowid = 10 AND word MATCH 'kiiner';
+} {keener 300}
+
+ifcapable trace {
+  proc trace_callback {sql} {
+    if {[string range $sql 0 2] == "-- "} {
+      lappend ::trace [string range $sql 3 end]
+    }
+  }
+  
+  proc do_tracesql_test {tn sql {res {}}} {
+    set ::trace [list]
+    uplevel [list do_test $tn [subst -nocommands {
+      set vals [execsql {$sql}]
+      concat [set vals] [set ::trace]
+    }] [list {*}$res]]
+  }
+  
+  db trace trace_callback
+  do_tracesql_test 6.2.1 {
+    SELECT word FROM t3 WHERE rowid = 10;
+  } {keener
+    {SELECT word, rank, NULL, langid, id FROM "main"."t3_vocab" WHERE rowid=?}
+  }
+  do_tracesql_test 6.2.2 {
+    SELECT word, distance FROM t3 WHERE rowid = 10;
+  } {keener {}
+    {SELECT word, rank, NULL, langid, id FROM "main"."t3_vocab" WHERE rowid=?}
+  }
+  do_tracesql_test 6.2.3 {
+    SELECT word, distance FROM t3 WHERE rowid = 10 AND word MATCH 'kiiner';
+  } {keener 300
+    {SELECT id, word, rank, coalesce(k1,word)  FROM "main"."t3_vocab" WHERE langid=0 AND k2>=?1 AND k2<?2}
+  }
+}
+
+#------------------------------------------------------------------------- 
+# Test that the spellfix1 table supports conflict handling (OR REPLACE 
+# and so on).
+#
+do_execsql_test 7.1 {
+  CREATE VIRTUAL TABLE t4 USING spellfix1;
+  PRAGMA table_info = t4;
+} {
+  0 word {} 0 {} 0 
+  1 rank {} 0 {} 0 
+  2 distance {} 0 {} 0 
+  3 langid {} 0 {} 0 
+  4 score {} 0 {} 0 
+  5 matchlen {} 0 {} 0
+}
+
+do_execsql_test 7.2.1 {
+  INSERT INTO t4(rowid, word) VALUES(1, 'Archilles');
+  INSERT INTO t4(rowid, word) VALUES(2, 'Pluto');
+  INSERT INTO t4(rowid, word) VALUES(3, 'Atrides');
+  INSERT OR REPLACE INTO t4(rowid, word) VALUES(2, 'Apollo');
+  SELECT rowid, word FROM t4;
+} {
+  1 Archilles   2 Apollo   3 Atrides
+}
+do_catchsql_test 7.2.2 {
+  INSERT OR ABORT INTO t4(rowid, word) VALUES(1, 'Leto');
+} {1 {constraint failed}}
+do_catchsql_test 7.2.3 {
+  INSERT OR ROLLBACK INTO t4(rowid, word) VALUES(3, 'Zeus');
+} {1 {constraint failed}}
+do_catchsql_test 7.2.4 {
+  INSERT OR FAIL INTO t4(rowid, word) VALUES(3, 'Zeus');
+} {1 {constraint failed}}
+do_execsql_test 7.2.5 {
+  INSERT OR IGNORE INTO t4(rowid, word) VALUES(3, 'Zeus');
+  SELECT rowid, word FROM t4;
+} {
+  1 Archilles   2 Apollo   3 Atrides
+}
+
+do_execsql_test 7.3.1 {
+  UPDATE OR REPLACE t4 SET rowid=3 WHERE rowid=1;
+  SELECT rowid, word FROM t4;
+} {2 Apollo 3 Archilles}
+do_catchsql_test 7.3.2 {
+  UPDATE OR ABORT t4 SET rowid=3 WHERE rowid=2;
+} {1 {constraint failed}}
+do_catchsql_test 7.3.3 {
+  UPDATE OR ROLLBACK t4 SET rowid=3 WHERE rowid=2;
+} {1 {constraint failed}}
+do_catchsql_test 7.3.4 {
+  UPDATE OR FAIL t4 SET rowid=3 WHERE rowid=2;
+} {1 {constraint failed}}
+do_execsql_test 7.3.5 {
+  UPDATE OR IGNORE t4 SET rowid=3 WHERE rowid=2;
+  SELECT rowid, word FROM t4;
+} {2 Apollo  3 Archilles}
+
+do_execsql_test 7.4.1 {
+  DELETE FROM t4;
+  INSERT INTO t4(rowid, word) VALUES(10, 'Agamemnon');
+  INSERT INTO t4(rowid, word) VALUES(20, 'Patroclus');
+  INSERT INTO t4(rowid, word) VALUES(30, 'Chryses');
+
+  CREATE TABLE t5(i, w);
+  INSERT INTO t5 VALUES(5,  'Poseidon');
+  INSERT INTO t5 VALUES(20, 'Chronos');
+  INSERT INTO t5 VALUES(30, 'Hera');
+}
+
+db_save_and_close
+foreach {tn conflict err bRollback res} {
+  0 ""            {1 {constraint failed}} 0
+                  {10 Agamemnon 20 Patroclus 30 Chryses}
+  1 "OR REPLACE"  {0 {}} 0
+                  {5 Poseidon 10 Agamemnon 20 Chronos 30 Hera}
+  2 "OR ABORT"    {1 {constraint failed}} 0
+                  {10 Agamemnon 20 Patroclus 30 Chryses}
+  3 "OR ROLLBACK" {1 {constraint failed}} 1
+                  {10 Agamemnon 20 Patroclus 30 Chryses}
+  5 "OR IGNORE"   {0 {}} 0
+                  {5 Poseidon 10 Agamemnon 20 Patroclus 30 Chryses}
+} {
+  db_restore_and_reopen
+  load_static_extension db spellfix nextchar
+
+  execsql BEGIN
+  set sql "INSERT $conflict INTO t4(rowid, word) SELECT i, w FROM t5"
+  do_catchsql_test 7.4.2.$tn.1 $sql $err
+  do_execsql_test 7.4.2.$tn.2 { SELECT rowid, word FROM t4 } $res
+
+  do_test 7.4.2.$tn.3 { sqlite3_get_autocommit db } $bRollback
+  catchsql ROLLBACK
+}
+
+foreach {tn conflict err bRollback res} {
+  0 ""            {1 {constraint failed}} 0
+                  {10 Agamemnon 20 Patroclus 30 Chryses}
+  1 "OR REPLACE"  {0 {}} 0
+                  {15 Agamemnon 45 Chryses}
+  2 "OR ABORT"    {1 {constraint failed}} 0
+                  {10 Agamemnon 20 Patroclus 30 Chryses}
+  3 "OR ROLLBACK" {1 {constraint failed}} 1
+                  {10 Agamemnon 20 Patroclus 30 Chryses}
+  5 "OR IGNORE"   {0 {}} 0
+                  {15 Agamemnon 20 Patroclus 45 Chryses}
+} {
+  db_restore_and_reopen
+  load_static_extension db spellfix nextchar
+
+  execsql BEGIN
+  set sql "UPDATE $conflict t4 SET rowid=rowid + (rowid/2)"
+  do_catchsql_test 7.5.2.$tn.1 $sql $err
+  do_execsql_test 7.5.2.$tn.2 { SELECT rowid, word FROM t4 } $res
+  do_test 7.5.2.$tn.3 { sqlite3_get_autocommit db } $bRollback
+  catchsql ROLLBACK
+}
+
+finish_test
diff --git a/test/spellfix2.test b/test/spellfix2.test
new file mode 100644
index 0000000000000000000000000000000000000000..d1a13284ea63dd0c75ff83037718c49edacd10ce
--- /dev/null
+++ b/test/spellfix2.test
@@ -0,0 +1,118 @@
+# 2012 July 12
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix spellfix2
+
+ifcapable !vtab { finish_test ; return }
+load_static_extension db spellfix nextchar
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE demo USING spellfix1;
+  INSERT INTO demo(word) VALUES ('amsterdam');
+  INSERT INTO demo(word) VALUES ('amsterdammetje');
+  INSERT INTO demo(word) VALUES ('amsterdamania');
+  INSERT INTO demo(word) VALUES ('amsterdamweg');
+  INSERT INTO demo(word) VALUES ('amsterdamsestraat');
+  INSERT INTO demo(word) VALUES ('amsterdamlaan');
+}
+
+do_execsql_test 1.1 {
+  SELECT word, distance, matchlen FROM demo 
+  WHERE word MATCH 'amstedam*' AND top=3
+  ORDER BY +word;
+} {
+   amsterdam      100 9
+   amsterdamania  100 9
+   amsterdammetje 100 9
+}
+
+do_execsql_test 1.2 {
+  SELECT word, distance, matchlen FROM demo WHERE 
+  word MATCH 'amstedam*' AND top=3 AND distance <= 100
+  ORDER BY +word;
+} {
+   amsterdam      100 9
+   amsterdamania  100 9
+   amsterdammetje 100 9
+}
+
+do_execsql_test 1.3 {
+  SELECT word, distance, matchlen FROM demo WHERE 
+  word MATCH 'amstedam*' AND distance <= 100
+  ORDER BY +word;
+} {
+   amsterdam         100 9
+   amsterdamania     100 9
+   amsterdamlaan     100 9
+   amsterdammetje    100 9
+   amsterdamsestraat 100 9
+   amsterdamweg      100 9
+}
+
+do_test 1.4 {
+  foreach l {a b c d e f g h i j k l m n o p q r s t u v w x y z} {
+    execsql { INSERT INTO demo(word) VALUES ('amsterdam' || $l) }
+  }
+} {}
+
+do_execsql_test 1.5 {
+  SELECT count(*) FROM demo WHERE word MATCH 'amstedam*' AND distance <= 100;
+  SELECT count(*) FROM demo 
+  WHERE word MATCH 'amstedam*' AND distance <= 100 AND top=20;
+} {
+  32 20
+}
+
+do_execsql_test 1.6 {
+  SELECT word, distance, matchlen FROM demo 
+  WHERE word MATCH 'amstedam*' AND distance <= 100
+  ORDER BY distance, word;
+} {
+  amsterdam         100 9        amsterdama        100 9
+  amsterdamania     100 9        amsterdamb        100 9
+  amsterdamc        100 9        amsterdamd        100 9
+  amsterdame        100 9        amsterdamf        100 9
+  amsterdamg        100 9        amsterdamh        100 9
+  amsterdami        100 9        amsterdamj        100 9
+  amsterdamk        100 9        amsterdaml        100 9
+  amsterdamlaan     100 9        amsterdamm        100 9
+  amsterdammetje    100 9        amsterdamn        100 9
+  amsterdamo        100 9        amsterdamp        100 9
+  amsterdamq        100 9        amsterdamr        100 9
+  amsterdams        100 9        amsterdamsestraat 100 9
+  amsterdamt        100 9        amsterdamu        100 9
+  amsterdamv        100 9        amsterdamw        100 9
+  amsterdamweg      100 9        amsterdamx        100 9
+  amsterdamy        100 9        amsterdamz        100 9
+}
+
+do_execsql_test 1.7 {
+  SELECT word, distance, matchlen FROM demo 
+  WHERE word MATCH 'amstedam*' AND distance <= 100 AND top=20
+  ORDER BY distance, word;
+} {
+  amsterdam         100 9        amsterdama        100 9
+  amsterdamania     100 9        amsterdamb        100 9
+  amsterdamc        100 9        amsterdame        100 9
+  amsterdamf        100 9        amsterdamg        100 9
+  amsterdamh        100 9        amsterdami        100 9
+  amsterdamm        100 9        amsterdammetje    100 9
+  amsterdamn        100 9        amsterdamo        100 9
+  amsterdamp        100 9        amsterdamu        100 9
+  amsterdamv        100 9        amsterdamw        100 9
+  amsterdamweg      100 9        amsterdamy        100 9
+}
+
+
+finish_test
diff --git a/test/spellfix3.test b/test/spellfix3.test
new file mode 100644
index 0000000000000000000000000000000000000000..e24ea31ee75cdb30514d1dcc46b6635e93dcc2e3
--- /dev/null
+++ b/test/spellfix3.test
@@ -0,0 +1,52 @@
+# 2015-12-17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix spellfix3
+
+ifcapable !vtab { finish_test ; return }
+
+load_static_extension db spellfix
+
+do_execsql_test 100 {
+  SELECT spellfix1_scriptcode('And God said, “Let there be light”');
+} {215}
+do_execsql_test 110 {
+  SELECT spellfix1_scriptcode('Бог сказал: "Да будет свет"');
+} {220}
+do_execsql_test 120 {
+  SELECT spellfix1_scriptcode('και ειπεν ο θεος γενηθητω φως και εγενετο φως');
+} {200}
+do_execsql_test 130 {
+  SELECT spellfix1_scriptcode('וַיֹּ֥אמֶר אֱלֹהִ֖ים יְהִ֣י א֑וֹר וַֽיְהִי־אֽוֹר׃');
+} {125}
+do_execsql_test 140 {
+  SELECT spellfix1_scriptcode('فِي ذَلِكَ الوَقتِ، قالَ اللهُ: لِيَكُنْ نُورٌ. فَصَارَ نُورٌ.');
+} {160}
+do_execsql_test 200 {
+  SELECT spellfix1_scriptcode('+3.14159');
+} {215}
+do_execsql_test 210 {
+  SELECT spellfix1_scriptcode('And God said: "Да будет свет"');
+} {998}
+do_execsql_test 220 {
+  SELECT spellfix1_scriptcode('+3.14159 light');
+} {215}
+do_execsql_test 230 {
+  SELECT spellfix1_scriptcode('+3.14159 свет');
+} {220}
+do_execsql_test 240 {
+  SELECT spellfix1_scriptcode('וַיֹּ֥אמֶר +3.14159');
+} {125}
+
+finish_test
diff --git a/test/spellfix4.test b/test/spellfix4.test
new file mode 100644
index 0000000000000000000000000000000000000000..caf6d5139a67ac93c80474037362da750e168cae
--- /dev/null
+++ b/test/spellfix4.test
@@ -0,0 +1,353 @@
+# 2018-02-14
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test cases for the editdist3() function in the spellfix extension.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix spellfix4
+
+ifcapable !vtab { finish_test ; return }
+
+load_static_extension db spellfix
+
+do_execsql_test 100 {
+  CREATE TABLE cost1(iLang, cFrom, cTo, iCost);
+  INSERT INTO cost1 VALUES
+    (0, '', '?',  97),
+    (0, '?', '',  98),
+    (0, '?', '?', 99),
+    (0, 'm', 'n', 50),
+    (0, 'n', 'm', 50)
+  ;
+  SELECT editdist3('cost1');
+  SELECT editdist3('anchor','amchor');
+} {{} 50}
+do_execsql_test 110 {
+  SELECT editdist3('anchor','anchoxr');
+} {97}
+do_execsql_test 111 {
+  SELECT editdist3('anchor','xanchor');
+} {97}
+do_execsql_test 112 {
+  SELECT editdist3('anchor','anchorx');
+} {97}
+do_execsql_test 120 {
+  SELECT editdist3('anchor','anchr');
+} {98}
+do_execsql_test 121 {
+  SELECT editdist3('anchor','ancho');
+} {98}
+do_execsql_test 122 {
+  SELECT editdist3('anchor','nchor');
+} {98}
+do_execsql_test 130 {
+  SELECT editdist3('anchor','anchur');
+} {99}
+do_execsql_test 131 {
+  SELECT editdist3('anchor','onchor');
+} {99}
+do_execsql_test 132 {
+  SELECT editdist3('anchor','anchot');
+} {99}
+do_execsql_test 140 {
+  SELECT editdist3('anchor','omchor');
+} {149}
+
+do_execsql_test 200 {
+  INSERT INTO cost1 VALUES
+    (0, 'a', 'ä', 5),
+    (0, 'ss', 'ß', 8)
+  ;
+  SELECT editdist3('cost1');
+  SELECT editdist3('strasse','straße');
+  SELECT editdist3('straße','strasse');
+} {{} 8 196}
+do_execsql_test 210 {
+  SELECT editdist3('baume','bäume');
+} {5}
+do_execsql_test 220 {
+  SELECT editdist3('baum','bäume');
+} {102}
+do_execsql_test 230 {
+  INSERT INTO cost1 VALUES
+    (0, 'ä', 'a', 5),
+    (0, 'ß', 'ss', 8)
+  ;
+  SELECT editdist3('cost1');
+  SELECT editdist3('strasse','straße');
+  SELECT editdist3('straße','strasse');
+} {{} 8 8}
+
+do_execsql_test 300 {
+  DELETE FROM cost1;
+  INSERT INTO cost1 VALUES
+    (0, '', '?',  97),
+    (0, '?', '',  98),
+    (0, '?', '?', 99),
+    (0, 'a', 'e', 50),
+    (0, 'a', 'i', 70),
+    (0, 'a', 'o', 75),
+    (0, 'a', 'u', 81),
+    (0, 'e', 'a', 50),
+    (0, 'e', 'i', 52),
+    (0, 'e', 'o', 72),
+    (0, 'e', 'u', 82),
+    (0, 'i', 'a', 70),
+    (0, 'i', 'e', 52),
+    (0, 'i', 'o', 75),
+    (0, 'i', 'u', 83),
+    (0, 'o', 'a', 75),
+    (0, 'o', 'e', 72),
+    (0, 'o', 'i', 75),
+    (0, 'o', 'u', 40),
+    (0, 'u', 'a', 81),
+    (0, 'u', 'e', 82),
+    (0, 'u', 'i', 83),
+    (0, 'u', 'o', 40),
+    (0, 'm', 'n', 45),
+    (0, 'n', 'm', 45)
+  ;
+  CREATE TABLE words(x TEXT);
+  INSERT INTO words VALUES
+   ('abraham'),
+   ('action'),
+   ('africa'),
+   ('aladdin'),
+   ('alert'),
+   ('alien'),
+   ('amazon'),
+   ('analog'),
+   ('animal'),
+   ('apollo'),
+   ('archive'),
+   ('arnold'),
+   ('aspirin'),
+   ('august'),
+   ('average'),
+   ('bahama'),
+   ('bambino'),
+   ('barcode'),
+   ('bazooka'),
+   ('belgium'),
+   ('between'),
+   ('biology'),
+   ('blonde'),
+   ('border'),
+   ('brave'),
+   ('british'),
+   ('bucket'),
+   ('button'),
+   ('caesar'),
+   ('camilla'),
+   ('cannon'),
+   ('caramel'),
+   ('carpet'),
+   ('catalog'),
+   ('century'),
+   ('chaos'),
+   ('chef'),
+   ('china'),
+   ('circus'),
+   ('classic'),
+   ('clinic'),
+   ('coconut'),
+   ('combine'),
+   ('complex'),
+   ('congo'),
+   ('convert'),
+   ('cosmos'),
+   ('crack'),
+   ('crown'),
+   ('cyclone'),
+   ('deal'),
+   ('delete'),
+   ('denver'),
+   ('detail'),
+   ('diana'),
+   ('direct'),
+   ('dolby'),
+   ('double'),
+   ('dublin'),
+   ('echo'),
+   ('edition'),
+   ('electra'),
+   ('emotion'),
+   ('enjoy'),
+   ('escape'),
+   ('everest'),
+   ('exile'),
+   ('express'),
+   ('family'),
+   ('ferrari'),
+   ('filter'),
+   ('fish'),
+   ('florida'),
+   ('ford'),
+   ('forum'),
+   ('frank'),
+   ('frozen'),
+   ('gallery'),
+   ('garlic'),
+   ('geneva'),
+   ('gibson'),
+   ('gloria'),
+   ('gordon'),
+   ('gravity'),
+   ('ground'),
+   ('habitat'),
+   ('harlem'),
+   ('hazard'),
+   ('herbert'),
+   ('hobby'),
+   ('house'),
+   ('icon'),
+   ('immune'),
+   ('india'),
+   ('inside'),
+   ('isotope'),
+   ('jamaica'),
+   ('jazz'),
+   ('joker'),
+   ('juliet'),
+   ('jupiter'),
+   ('kevin'),
+   ('korea'),
+   ('latin'),
+   ('legal'),
+   ('lexicon'),
+   ('limbo'),
+   ('lithium'),
+   ('logo'),
+   ('lucas'),
+   ('madrid'),
+   ('major'),
+   ('manual'),
+   ('mars'),
+   ('maximum'),
+   ('medical'),
+   ('mental'),
+   ('meter'),
+   ('miguel'),
+   ('mimosa'),
+   ('miranda'),
+   ('modern'),
+   ('money'),
+   ('morgan'),
+   ('motor'),
+   ('mystic'),
+   ('nebula'),
+   ('network'),
+   ('nice'),
+   ('nitro'),
+   ('norway'),
+   ('nurse'),
+   ('octavia'),
+   ('olympic'),
+   ('opus'),
+   ('orient'),
+   ('othello'),
+   ('pacific'),
+   ('panama'),
+   ('paper'),
+   ('parking'),
+   ('pasta'),
+   ('paul'),
+   ('people'),
+   ('permit'),
+   ('phrase'),
+   ('pilgrim'),
+   ('planet'),
+   ('pocket'),
+   ('police'),
+   ('popular'),
+   ('prefer'),
+   ('presto'),
+   ('private'),
+   ('project'),
+   ('proxy'),
+   ('python'),
+   ('quota'),
+   ('rainbow'),
+   ('raymond'),
+   ('region'),
+   ('report'),
+   ('reward'),
+   ('risk'),
+   ('robot'),
+   ('rose'),
+   ('russian'),
+   ('sailor'),
+   ('salt'),
+   ('saturn'),
+   ('scorpio'),
+   ('second'),
+   ('seminar'),
+   ('shadow'),
+   ('shave'),
+   ('shock'),
+   ('silence'),
+   ('sinatra'),
+   ('sleep'),
+   ('social'),
+   ('sonata'),
+   ('spain'),
+   ('sphere'),
+   ('spray'),
+   ('state'),
+   ('stone'),
+   ('strong'),
+   ('sugar'),
+   ('supreme'),
+   ('swing'),
+   ('talent'),
+   ('telecom'),
+   ('thermos'),
+   ('tina'),
+   ('tommy'),
+   ('torso'),
+   ('trade'),
+   ('trick'),
+   ('tropic'),
+   ('turtle'),
+   ('uniform'),
+   ('user'),
+   ('vega'),
+   ('vertigo'),
+   ('village'),
+   ('visible'),
+   ('vocal'),
+   ('voyage'),
+   ('weekend'),
+   ('winter'),
+   ('year'),
+   ('zipper')
+  ;
+  SELECT editdist3('cost1');
+} {{}}
+do_execsql_test 310 {
+  SELECT editdist3(a.x,b.x), a.x, b.x
+    FROM words a, words b
+   WHERE a.x<b.x
+   ORDER BY 1, 2
+   LIMIT 20
+} {139 bucket pocket 144 meter motor 149 manual mental 169 crack trick 173 sinatra sonata 174 edition emotion 174 major motor 174 risk rose 174 state stone 194 deal detail 196 alert talent 196 analog catalog 196 deal legal 196 ford forum 196 risk trick 196 stone strong 197 china tina 197 congo logo 197 diana tina 197 florida gloria}
+do_execsql_test 320 {
+  SELECT md5sum(ed||'/'||sx||'/'||sy||',') FROM (
+      SELECT editdist3(a.x,b.x) AS ed, a.x AS sx, b.x AS sy
+        FROM words a, words b
+       WHERE a.x<b.x
+       ORDER BY 1, 2
+  )
+} {69d0a31872203a775e19325ea98cd053}
+
+finish_test
diff --git a/test/sqldiff1.test b/test/sqldiff1.test
new file mode 100644
index 0000000000000000000000000000000000000000..5a3c11cb9c1b655805ae7550ea21e8be30ff1985
--- /dev/null
+++ b/test/sqldiff1.test
@@ -0,0 +1,88 @@
+# 2015-05-11
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Quick tests for the sqldiff tool
+#
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+set PROG [test_find_sqldiff]
+
+db close
+forcedelete test.db test2.db
+sqlite3 db test.db
+
+do_test sqldiff-1.0 {
+  db eval {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+    CREATE TABLE t2(a INT PRIMARY KEY, b) WITHOUT ROWID;
+    WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<100)
+    INSERT INTO t1(a,b) SELECT x, printf('abc-%d-xyz',x) FROM c;
+    INSERT INTO t2(a,b) SELECT a, b FROM t1;
+  }
+  db backup test2.db
+  db eval {
+    ATTACH 'test2.db' AS x2;
+    DELETE FROM x2.t1 WHERE a=49;
+    DELETE FROM x2.t2 WHERE a=48;
+    INSERT INTO x2.t1(a,b) VALUES(1234,'hello');
+    INSERT INTO x2.t2(a,b) VALUES(50.5,'xyzzy');
+    INSERT INTO x2.t2(a,b) VALUES(51.5,'');
+    INSERT INTO x2.t2(a,b) VALUES(52.5,''||X'0d0a');
+    INSERT INTO x2.t2(a,b) VALUES(53.5,'one'||X'0a0d');
+    INSERT INTO x2.t2(a,b) VALUES(54.5,'one'||X'0a'||'two');
+    CREATE TABLE x2.t3(a,b,c);
+    INSERT INTO x2.t3 VALUES(111,222,333);
+    CREATE TABLE main.t4(x,y,z);
+    INSERT INTO t4 SELECT * FROM t3;
+  }
+  set line "exec $PROG test.db test2.db"
+  unset -nocomplain ::MSG
+  catch {eval $line} ::MSG
+} {0}
+do_test sqldiff-1.1 {
+  set ::MSG
+} {DELETE FROM t1 WHERE a=49;
+INSERT INTO t1(a,b) VALUES(1234,'hello');
+DELETE FROM t2 WHERE a=48;
+INSERT INTO t2(a,b) VALUES(50.5,'xyzzy');
+INSERT INTO t2(a,b) VALUES(51.5,'');
+INSERT INTO t2(a,b) VALUES(52.5,''||X'0d0a');
+INSERT INTO t2(a,b) VALUES(53.5,'one'||X'0a0d');
+INSERT INTO t2(a,b) VALUES(54.5,'one'||X'0a'
+||'two');
+CREATE TABLE t3(a,b,c);
+INSERT INTO t3(rowid,a,b,c) VALUES(1,111,222,333);
+DROP TABLE t4;}
+
+db close
+forcedelete test.db test2.db
+sqlite3 db test.db
+
+do_test sqldiff-2.0 {
+  db eval {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY);
+  }
+  db close
+  sqlite3 db test2.db
+  db eval {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+  }
+  db close
+  set line "exec $PROG test.db test2.db"
+  unset -nocomplain ::MSG
+  catch {eval $line} ::MSG
+} {0}
+do_test sqldiff-2.1 {
+  set ::MSG
+} {ALTER TABLE t1 ADD COLUMN b;}
+
+finish_test
diff --git a/test/sqllimits1.test b/test/sqllimits1.test
new file mode 100644
index 0000000000000000000000000000000000000000..efe656db6a2d62c240e0dfc3af2845cf8a682693
--- /dev/null
+++ b/test/sqllimits1.test
@@ -0,0 +1,985 @@
+# 2007 May 8
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains tests to verify that the limits defined in
+# sqlite source file limits.h are enforced.
+#
+# $Id: sqllimits1.test,v 1.33 2009/06/25 01:47:12 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix sqllimits1
+
+# Verify that the default per-connection limits are the same as
+# the compile-time hard limits.
+#
+sqlite3 db2 :memory:
+do_test sqllimits1-1.1 {
+  sqlite3_limit db SQLITE_LIMIT_LENGTH -1
+} $SQLITE_MAX_LENGTH
+do_test sqllimits1-1.2 {
+  sqlite3_limit db SQLITE_LIMIT_SQL_LENGTH -1
+} $SQLITE_MAX_SQL_LENGTH
+do_test sqllimits1-1.3 {
+  sqlite3_limit db SQLITE_LIMIT_COLUMN -1
+} $SQLITE_MAX_COLUMN
+do_test sqllimits1-1.4 {
+  sqlite3_limit db SQLITE_LIMIT_EXPR_DEPTH -1
+} $SQLITE_MAX_EXPR_DEPTH
+do_test sqllimits1-1.5 {
+  sqlite3_limit db SQLITE_LIMIT_COMPOUND_SELECT -1
+} $SQLITE_MAX_COMPOUND_SELECT
+do_test sqllimits1-1.6 {
+  sqlite3_limit db SQLITE_LIMIT_VDBE_OP -1
+} $SQLITE_MAX_VDBE_OP
+do_test sqllimits1-1.7 {
+  sqlite3_limit db SQLITE_LIMIT_FUNCTION_ARG -1
+} $SQLITE_MAX_FUNCTION_ARG
+do_test sqllimits1-1.8 {
+  sqlite3_limit db SQLITE_LIMIT_ATTACHED -1
+} $SQLITE_MAX_ATTACHED
+do_test sqllimits1-1.9 {
+  sqlite3_limit db SQLITE_LIMIT_LIKE_PATTERN_LENGTH -1
+} $SQLITE_MAX_LIKE_PATTERN_LENGTH
+do_test sqllimits1-1.10 {
+  sqlite3_limit db SQLITE_LIMIT_VARIABLE_NUMBER -1
+} $SQLITE_MAX_VARIABLE_NUMBER
+do_test sqllimits1-1.11 {
+  sqlite3_limit db SQLITE_LIMIT_TRIGGER_DEPTH -1
+} $SQLITE_MAX_TRIGGER_DEPTH
+do_test sqllimits1-1.12 {
+  sqlite3_limit db SQLITE_LIMIT_WORKER_THREADS 99999
+  sqlite3_limit db SQLITE_LIMIT_WORKER_THREADS -1
+} $SQLITE_MAX_WORKER_THREADS
+
+# Limit parameters out of range.
+#
+do_test sqllimits1-1.20 {
+  sqlite3_limit db SQLITE_LIMIT_TOOSMALL 123
+} {-1}
+do_test sqllimits1-1.21 {
+  sqlite3_limit db SQLITE_LIMIT_TOOSMALL 123
+} {-1}
+do_test sqllimits1-1.22 {
+  sqlite3_limit db SQLITE_LIMIT_TOOBIG 123
+} {-1}
+do_test sqllimits1-1.23 {
+  sqlite3_limit db SQLITE_LIMIT_TOOBIG 123
+} {-1}
+
+# Minimum value for SQLITE_LIMIT_LENGTH is 30
+#
+do_test sqllimits1-1.30 {
+  set prior [sqlite3_limit db SQLITE_LIMIT_LENGTH 1]
+  sqlite3_limit db SQLITE_LIMIT_LENGTH $prior
+} 30
+
+
+# Decrease all limits by half.  Verify that the new limits take.
+#
+if {$SQLITE_MAX_LENGTH>=2} {
+  do_test sqllimits1-2.1.1 {
+    sqlite3_limit db SQLITE_LIMIT_LENGTH \
+                    [expr {$::SQLITE_MAX_LENGTH/2}]
+  } $SQLITE_MAX_LENGTH
+  do_test sqllimits1-2.1.2 {
+    sqlite3_limit db SQLITE_LIMIT_LENGTH -1
+  } [expr {$SQLITE_MAX_LENGTH/2}]
+}
+if {$SQLITE_MAX_SQL_LENGTH>=2} {
+  do_test sqllimits1-2.2.1 {
+    sqlite3_limit db SQLITE_LIMIT_SQL_LENGTH \
+                    [expr {$::SQLITE_MAX_SQL_LENGTH/2}]
+  } $SQLITE_MAX_SQL_LENGTH
+  do_test sqllimits1-2.2.2 {
+    sqlite3_limit db SQLITE_LIMIT_SQL_LENGTH -1
+  } [expr {$SQLITE_MAX_SQL_LENGTH/2}]
+}
+if {$SQLITE_MAX_COLUMN>=2} {
+  do_test sqllimits1-2.3.1 {
+    sqlite3_limit db SQLITE_LIMIT_COLUMN \
+                    [expr {$::SQLITE_MAX_COLUMN/2}]
+  } $SQLITE_MAX_COLUMN
+  do_test sqllimits1-2.3.2 {
+    sqlite3_limit db SQLITE_LIMIT_COLUMN -1
+  } [expr {$SQLITE_MAX_COLUMN/2}]
+}
+if {$SQLITE_MAX_EXPR_DEPTH>=2} {
+  do_test sqllimits1-2.4.1 {
+    sqlite3_limit db SQLITE_LIMIT_EXPR_DEPTH \
+                    [expr {$::SQLITE_MAX_EXPR_DEPTH/2}]
+  } $SQLITE_MAX_EXPR_DEPTH
+  do_test sqllimits1-2.4.2 {
+    sqlite3_limit db SQLITE_LIMIT_EXPR_DEPTH -1
+  } [expr {$SQLITE_MAX_EXPR_DEPTH/2}]
+}
+if {$SQLITE_MAX_COMPOUND_SELECT>=2} {
+  do_test sqllimits1-2.5.1 {
+    sqlite3_limit db SQLITE_LIMIT_COMPOUND_SELECT \
+                    [expr {$::SQLITE_MAX_COMPOUND_SELECT/2}]
+  } $SQLITE_MAX_COMPOUND_SELECT
+  do_test sqllimits1-2.5.2 {
+    sqlite3_limit db SQLITE_LIMIT_COMPOUND_SELECT -1
+  } [expr {$SQLITE_MAX_COMPOUND_SELECT/2}]
+}
+if {$SQLITE_MAX_VDBE_OP>=2} {
+  do_test sqllimits1-2.6.1 {
+    sqlite3_limit db SQLITE_LIMIT_VDBE_OP \
+                    [expr {$::SQLITE_MAX_VDBE_OP/2}]
+  } $SQLITE_MAX_VDBE_OP
+  do_test sqllimits1-2.6.2 {
+    sqlite3_limit db SQLITE_LIMIT_VDBE_OP -1
+  } [expr {$SQLITE_MAX_VDBE_OP/2}]
+}
+if {$SQLITE_MAX_FUNCTION_ARG>=2} {
+  do_test sqllimits1-2.7.1 {
+    sqlite3_limit db SQLITE_LIMIT_FUNCTION_ARG \
+                    [expr {$::SQLITE_MAX_FUNCTION_ARG/2}]
+  } $SQLITE_MAX_FUNCTION_ARG
+  do_test sqllimits1-2.7.2 {
+    sqlite3_limit db SQLITE_LIMIT_FUNCTION_ARG -1
+  } [expr {$SQLITE_MAX_FUNCTION_ARG/2}]
+}
+if {$SQLITE_MAX_ATTACHED>=2} {
+  do_test sqllimits1-2.8.1 {
+    sqlite3_limit db SQLITE_LIMIT_ATTACHED \
+                    [expr {$::SQLITE_MAX_ATTACHED/2}]
+  } $SQLITE_MAX_ATTACHED
+  do_test sqllimits1-2.8.2 {
+    sqlite3_limit db SQLITE_LIMIT_ATTACHED -1
+  } [expr {$SQLITE_MAX_ATTACHED/2}]
+}
+if {$SQLITE_MAX_LIKE_PATTERN_LENGTH>=2} {
+  do_test sqllimits1-2.9.1 {
+    sqlite3_limit db SQLITE_LIMIT_LIKE_PATTERN_LENGTH \
+                    [expr {$::SQLITE_MAX_LIKE_PATTERN_LENGTH/2}]
+  } $SQLITE_MAX_LIKE_PATTERN_LENGTH
+  do_test sqllimits1-2.9.2 {
+    sqlite3_limit db SQLITE_LIMIT_LIKE_PATTERN_LENGTH -1
+  } [expr {$SQLITE_MAX_LIKE_PATTERN_LENGTH/2}]
+}
+if {$SQLITE_MAX_VARIABLE_NUMBER>=2} {
+  do_test sqllimits1-2.10.1 {
+    sqlite3_limit db SQLITE_LIMIT_VARIABLE_NUMBER \
+                    [expr {$::SQLITE_MAX_VARIABLE_NUMBER/2}]
+  } $SQLITE_MAX_VARIABLE_NUMBER
+  do_test sqllimits1-2.10.2 {
+    sqlite3_limit db SQLITE_LIMIT_VARIABLE_NUMBER -1
+  } [expr {$SQLITE_MAX_VARIABLE_NUMBER/2}]
+}
+
+# In a separate database connection, verify that the limits are unchanged.
+#
+do_test sqllimits1-3.1 {
+  sqlite3_limit db2 SQLITE_LIMIT_LENGTH -1
+} $SQLITE_MAX_LENGTH
+do_test sqllimits1-3.2 {
+  sqlite3_limit db2 SQLITE_LIMIT_SQL_LENGTH -1
+} $SQLITE_MAX_SQL_LENGTH
+do_test sqllimits1-3.3 {
+  sqlite3_limit db2 SQLITE_LIMIT_COLUMN -1
+} $SQLITE_MAX_COLUMN
+do_test sqllimits1-3.4 {
+  sqlite3_limit db2 SQLITE_LIMIT_EXPR_DEPTH -1
+} $SQLITE_MAX_EXPR_DEPTH
+do_test sqllimits1-3.5 {
+  sqlite3_limit db2 SQLITE_LIMIT_COMPOUND_SELECT -1
+} $SQLITE_MAX_COMPOUND_SELECT
+do_test sqllimits1-3.6 {
+  sqlite3_limit db2 SQLITE_LIMIT_VDBE_OP -1
+} $SQLITE_MAX_VDBE_OP
+do_test sqllimits1-3.7 {
+  sqlite3_limit db2 SQLITE_LIMIT_FUNCTION_ARG -1
+} $SQLITE_MAX_FUNCTION_ARG
+do_test sqllimits1-3.8 {
+  sqlite3_limit db2 SQLITE_LIMIT_ATTACHED -1
+} $SQLITE_MAX_ATTACHED
+do_test sqllimits1-3.9 {
+  sqlite3_limit db2 SQLITE_LIMIT_LIKE_PATTERN_LENGTH -1
+} $SQLITE_MAX_LIKE_PATTERN_LENGTH
+do_test sqllimits1-3.10 {
+  sqlite3_limit db2 SQLITE_LIMIT_VARIABLE_NUMBER -1
+} $SQLITE_MAX_VARIABLE_NUMBER
+db2 close
+
+# Attempt to set all limits to the maximum 32-bit integer.  Verify
+# that the limit does not exceed the compile-time upper bound.
+#
+do_test sqllimits1-4.1.1 {
+  sqlite3_limit db SQLITE_LIMIT_LENGTH 0x7fffffff
+  sqlite3_limit db SQLITE_LIMIT_LENGTH -1
+} $SQLITE_MAX_LENGTH
+do_test sqllimits1-4.2.1 {
+  sqlite3_limit db SQLITE_LIMIT_SQL_LENGTH 0x7fffffff
+  sqlite3_limit db SQLITE_LIMIT_SQL_LENGTH -1
+} $SQLITE_MAX_SQL_LENGTH
+do_test sqllimits1-4.3.1 {
+  sqlite3_limit db SQLITE_LIMIT_COLUMN 0x7fffffff
+  sqlite3_limit db SQLITE_LIMIT_COLUMN -1
+} $SQLITE_MAX_COLUMN
+do_test sqllimits1-4.4.1 {
+  sqlite3_limit db SQLITE_LIMIT_EXPR_DEPTH 0x7fffffff
+  sqlite3_limit db SQLITE_LIMIT_EXPR_DEPTH -1
+} $SQLITE_MAX_EXPR_DEPTH
+do_test sqllimits1-4.5.1 {
+  sqlite3_limit db SQLITE_LIMIT_COMPOUND_SELECT 0x7fffffff
+  sqlite3_limit db SQLITE_LIMIT_COMPOUND_SELECT -1
+} $SQLITE_MAX_COMPOUND_SELECT
+do_test sqllimits1-4.6.1 {
+  sqlite3_limit db SQLITE_LIMIT_VDBE_OP 0x7fffffff
+  sqlite3_limit db SQLITE_LIMIT_VDBE_OP -1
+} $SQLITE_MAX_VDBE_OP
+do_test sqllimits1-4.7.1 {
+  sqlite3_limit db SQLITE_LIMIT_FUNCTION_ARG 0x7fffffff
+  sqlite3_limit db SQLITE_LIMIT_FUNCTION_ARG -1
+} $SQLITE_MAX_FUNCTION_ARG
+do_test sqllimits1-4.8.1 {
+  sqlite3_limit db SQLITE_LIMIT_ATTACHED 0x7fffffff
+  sqlite3_limit db SQLITE_LIMIT_ATTACHED -1
+} $SQLITE_MAX_ATTACHED
+do_test sqllimits1-4.9.1 {
+  sqlite3_limit db SQLITE_LIMIT_LIKE_PATTERN_LENGTH 0x7fffffff
+  sqlite3_limit db SQLITE_LIMIT_LIKE_PATTERN_LENGTH -1
+} $SQLITE_MAX_LIKE_PATTERN_LENGTH
+do_test sqllimits1-4.10.1 {
+  sqlite3_limit db SQLITE_LIMIT_VARIABLE_NUMBER 0x7fffffff
+  sqlite3_limit db SQLITE_LIMIT_VARIABLE_NUMBER -1
+} $SQLITE_MAX_VARIABLE_NUMBER
+
+#--------------------------------------------------------------------
+# Test cases sqllimits1-5.* test that the SQLITE_MAX_LENGTH limit
+# is enforced.
+#
+# EVIDENCE-OF: R-61987-00541 SQLITE_LIMIT_LENGTH The maximum size of any
+# string or BLOB or table row, in bytes.
+#
+db close
+sqlite3 db test.db
+set LARGESIZE 99999
+set SQLITE_LIMIT_LENGTH 100000
+sqlite3_limit db SQLITE_LIMIT_LENGTH $SQLITE_LIMIT_LENGTH
+
+do_test sqllimits1-5.1.1 {
+  catchsql { SELECT randomblob(2147483647) }
+} {1 {string or blob too big}}
+do_test sqllimits1-5.1.2 {
+  catchsql { SELECT zeroblob(2147483647) }
+} {1 {string or blob too big}}
+
+do_test sqllimits1-5.2 {
+  catchsql { SELECT LENGTH(randomblob($::LARGESIZE)) }
+} [list 0 $LARGESIZE]
+
+do_test sqllimits1-5.3 {
+  catchsql { SELECT quote(randomblob($::LARGESIZE)) }
+} {1 {string or blob too big}}
+
+do_test sqllimits1-5.4 {
+  catchsql { SELECT LENGTH(zeroblob($::LARGESIZE)) }
+} [list 0 $LARGESIZE]
+
+do_test sqllimits1-5.5 {
+  catchsql { SELECT quote(zeroblob($::LARGESIZE)) }
+} {1 {string or blob too big}}
+
+do_test sqllimits1-5.6 {
+  catchsql { SELECT zeroblob(-1) }
+} {0 {{}}}
+
+do_test sqllimits1-5.9 {
+  set ::str [string repeat A 65537]
+  set ::rep [string repeat B 65537]
+  catchsql { SELECT replace($::str, 'A', $::rep) }
+} {1 {string or blob too big}}
+
+do_test sqllimits1-5.10 {
+  # Prior to 3.37.0 strftime() allocated a large static buffer into
+  # which to format its output. Using that strategy, 2100 repeats was
+  # enough to exceed 100KiB and provoke the error. As of 3.37.0 strftime()
+  # uses the StrAccum functions, so it requires 12100 to fail.
+  #
+  # set ::str [string repeat %J 2100]
+  set ::str [string repeat %J 12100]
+  catchsql { SELECT length(strftime($::str, '2003-10-31')) }
+} {1 {string or blob too big}}
+
+do_test sqllimits1-5.11 {
+  set ::str1 [string repeat A [expr {$SQLITE_LIMIT_LENGTH - 10}]]
+  set ::str2 [string repeat B [expr {$SQLITE_LIMIT_LENGTH - 10}]]
+  catchsql { SELECT $::str1 || $::str2 }
+} {1 {string or blob too big}}
+
+do_test sqllimits1-5.12 {
+  set ::str1 [string repeat ' [expr {$SQLITE_LIMIT_LENGTH - 10}]]
+  catchsql { SELECT quote($::str1) }
+} {1 {string or blob too big}}
+
+do_test sqllimits1-5.13 {
+  set ::str1 [string repeat ' [expr {$SQLITE_LIMIT_LENGTH - 10}]]
+  catchsql { SELECT hex($::str1) }
+} {1 {string or blob too big}}
+
+do_test sqllimits1-5.14.1 {
+  set ::STMT [sqlite3_prepare db "SELECT ?" -1 TAIL]
+  sqlite3_bind_zeroblob $::STMT 1 [expr {$SQLITE_LIMIT_LENGTH + 1}]
+} {}
+do_test sqllimits1-5.14.2 {
+  sqlite3_step $::STMT 
+} {SQLITE_ERROR}
+do_test sqllimits1-5.14.3 {
+  sqlite3_reset $::STMT 
+} {SQLITE_TOOBIG}
+do_test sqllimits1-5.14.4 {
+  set np1 [expr {$SQLITE_LIMIT_LENGTH + 1}]
+  set ::str1 [string repeat A $np1]
+  catch {sqlite3_bind_text $::STMT 1 $::str1 -1} res
+  set res
+} {SQLITE_TOOBIG}
+ifcapable utf16 {
+  do_test sqllimits1-5.14.5 {
+    catch {sqlite3_bind_text16 $::STMT 1 $::str1 -1} res
+    set res
+  } {SQLITE_TOOBIG}
+}
+do_test sqllimits1-5.14.6 {
+  catch {sqlite3_bind_text $::STMT 1 $::str1 $np1} res
+  set res
+} {SQLITE_TOOBIG}
+ifcapable utf16 {
+  do_test sqllimits1-5.14.7 {
+    catch {sqlite3_bind_text16 $::STMT 1 $::str1 [expr $np1+1]} res
+    set res
+  } {SQLITE_TOOBIG}
+}
+do_test sqllimits1-5.14.8 {
+  set n [expr {$np1-1}]
+  catch {sqlite3_bind_text $::STMT 1 $::str1 $n} res
+  set res
+} {}
+do_test sqllimits1-5.14.9 {
+  catch {sqlite3_bind_text16 $::STMT 1 $::str1 $n} res
+  set res
+} {}
+sqlite3_finalize $::STMT 
+
+do_test sqllimits1-5.15 {
+  execsql {
+    CREATE TABLE t4(x);
+    INSERT INTO t4 VALUES(1);
+    INSERT INTO t4 VALUES(2);
+    INSERT INTO t4 SELECT 2+x FROM t4;
+  }
+  catchsql {
+    SELECT group_concat(hex(randomblob(20000))) FROM t4;
+  }
+} {1 {string or blob too big}}
+db eval {DROP TABLE t4}
+
+sqlite3_limit db SQLITE_LIMIT_SQL_LENGTH 0x7fffffff
+set strvalue [string repeat A $::SQLITE_LIMIT_LENGTH]
+do_test sqllimits1-5.16 {
+  catchsql "SELECT '$strvalue' AS x"
+} [list 0 $strvalue]
+do_test sqllimits1-5.17.1 {
+  catchsql "SELECT 'A$strvalue'"
+} [list 1 {string or blob too big}]
+do_test sqllimits1-5.17.2 {
+  sqlite3_limit db SQLITE_LIMIT_LENGTH 0x7fffffff
+  catchsql {SELECT 'A' || $::strvalue}
+} [list 0 A$strvalue]
+do_test sqllimits1-5.17.3 {
+  sqlite3_limit db SQLITE_LIMIT_LENGTH $SQLITE_LIMIT_LENGTH
+  catchsql {SELECT 'A' || $::strvalue}
+} [list 1 {string or blob too big}]
+set blobvalue [string repeat 41 $::SQLITE_LIMIT_LENGTH]
+do_test sqllimits1-5.18 {
+  catchsql "SELECT x'$blobvalue' AS x"
+} [list 0 $strvalue]
+do_test sqllimits1-5.19 {
+  catchsql "SELECT '41$blobvalue'"
+} [list 1 {string or blob too big}]
+unset blobvalue
+
+ifcapable datetime {
+  set strvalue [string repeat D [expr {$SQLITE_LIMIT_LENGTH-11}]]
+  do_test sqllimits1-5.20 {
+    catchsql {SELECT strftime('%Y ' || $::strvalue, '2008-01-02')}
+  } [list 0 [list "2008 $strvalue"]]
+  do_test sqllimits1-5.21 {
+    catchsql {SELECT strftime('%Y-%m-%d ' || $::strvalue, '2008-01-02')}
+  } {1 {string or blob too big}}
+}
+unset strvalue
+
+#--------------------------------------------------------------------
+# Test cases sqllimits1-6.* test that the SQLITE_MAX_SQL_LENGTH limit
+# is enforced.
+#
+# EVIDENCE-OF: R-09808-17554 SQLITE_LIMIT_SQL_LENGTH The maximum length
+# of an SQL statement, in bytes.
+#
+do_test sqllimits1-6.1 {
+  sqlite3_limit db SQLITE_LIMIT_SQL_LENGTH 50000
+  set sql "SELECT 1 WHERE 1==1"
+  set tail " /* A comment to take up space in order to make the string\
+                longer without increasing the expression depth */\
+                AND   1  ==  1"
+  set N [expr {(50000 / [string length $tail])+1}]
+  append sql [string repeat $tail $N]
+  catchsql $sql
+} {1 {string or blob too big}}
+do_test sqllimits1-6.3 {
+  sqlite3_limit db SQLITE_LIMIT_SQL_LENGTH 50000
+  set sql "SELECT 1 WHERE 1==1"
+  set tail " /* A comment to take up space in order to make the string\
+                longer without increasing the expression depth */\
+                AND   1  ==  1"
+  set N [expr {(50000 / [string length $tail])+1}]
+  append sql [string repeat $tail $N]
+  set nbytes [string length $sql]
+  append sql { AND 0}
+  set rc [catch {sqlite3_prepare db $sql $nbytes TAIL} STMT]
+  lappend rc $STMT
+} {1 {(18) statement too long}}
+do_test sqllimits1-6.4 {
+  sqlite3_errmsg db
+} {statement too long}
+
+#--------------------------------------------------------------------
+# Test cases sqllimits1-7.* test that the limit set using the
+# max_page_count pragma.
+#
+do_test sqllimits1-7.1 {
+  execsql {
+    PRAGMA max_page_count = 1000;
+  }
+} {1000}
+do_test sqllimits1-7.2 {
+  execsql { CREATE TABLE trig (a INTEGER, b INTEGER); }
+
+  # Set up a tree of triggers to fire when a row is inserted
+  # into table "trig".
+  #
+  # INSERT -> insert_b -> update_b -> insert_a -> update_a      (chain 1)
+  #                    -> update_a -> insert_a -> update_b      (chain 2)
+  #        -> insert_a -> update_b -> insert_b -> update_a      (chain 3)
+  #                    -> update_a -> insert_b -> update_b      (chain 4)
+  #
+  # Table starts with N rows.
+  #
+  #   Chain 1: insert_b (update N rows)
+  #              -> update_b (insert 1 rows)
+  #                -> insert_a (update N rows)
+  #                  -> update_a (insert 1 rows)
+  #
+  # chains 2, 3 and 4 are similar. Each inserts more than N^2 rows, where
+  # N is the number of rows at the conclusion of the previous chain.
+  #
+  # Therefore, a single insert adds (N^16 plus some) rows to the database.
+  # A really long loop...
+  #     
+  execsql {
+    CREATE TRIGGER update_b BEFORE UPDATE ON trig
+      FOR EACH ROW BEGIN
+        INSERT INTO trig VALUES (65, 'update_b');
+      END;
+
+    CREATE TRIGGER update_a AFTER UPDATE ON trig
+      FOR EACH ROW BEGIN
+        INSERT INTO trig VALUES (65, 'update_a');
+      END;
+
+    CREATE TRIGGER insert_b BEFORE INSERT ON trig
+      FOR EACH ROW BEGIN
+        UPDATE trig SET a = 1;
+      END;
+
+    CREATE TRIGGER insert_a AFTER INSERT ON trig
+      FOR EACH ROW BEGIN
+        UPDATE trig SET a = 1;
+      END;
+  }
+} {}
+
+do_test sqllimits1-7.3 {
+  execsql {
+    INSERT INTO trig VALUES (1,1); 
+  }
+} {}
+
+do_test sqllimits1-7.4 {
+  execsql {
+    SELECT COUNT(*) FROM trig;
+  }
+} {7}
+
+# This tries to insert so many rows it fills up the database (limited
+# to 1MB, so not that noteworthy an achievement).
+#
+do_test sqllimits1-7.5 {
+  catchsql {
+    INSERT INTO trig VALUES (1,10);
+  }
+} {1 {database or disk is full}}
+
+do_test sqllimits1-7.6 {
+  catchsql {
+    SELECT COUNT(*) FROM trig;
+  }
+} {0 7}
+
+# Now check the response of the library to opening a file larger than
+# the current max_page_count value. The response is to change the
+# internal max_page_count value to match the actual size of the file.
+if {[db eval {PRAGMA auto_vacuum}]} {
+   set fsize 1700
+} else {
+   set fsize 1691
+}
+do_test sqllimits1-7.7.1 {
+  execsql {
+    PRAGMA max_page_count = 1000000;
+    CREATE TABLE abc(a, b, c);
+    INSERT INTO abc VALUES(1, 2, 3);
+    INSERT INTO abc SELECT a||b||c, b||c||a, c||a||b FROM abc;
+    INSERT INTO abc SELECT a||b||c, b||c||a, c||a||b FROM abc;
+    INSERT INTO abc SELECT a||b||c, b||c||a, c||a||b FROM abc;
+    INSERT INTO abc SELECT a||b||c, b||c||a, c||a||b FROM abc;
+    INSERT INTO abc SELECT a||b||c, b||c||a, c||a||b FROM abc;
+    INSERT INTO abc SELECT a||b||c, b||c||a, c||a||b FROM abc;
+    INSERT INTO abc SELECT a||b||c, b||c||a, c||a||b FROM abc;
+    INSERT INTO abc SELECT a||b||c, b||c||a, c||a||b FROM abc;
+    INSERT INTO abc SELECT a, b, c FROM abc;
+    INSERT INTO abc SELECT b, a, c FROM abc;
+    INSERT INTO abc SELECT c, b, a FROM abc;
+  }
+  expr [file size test.db] / 1024
+} $fsize
+do_test sqllimits1-7.7.2 {
+  db close
+  sqlite3 db test.db
+  execsql {
+    PRAGMA max_page_count = 1000;
+  }
+  execsql {
+    SELECT count(*) FROM sqlite_master;
+  }
+} {6}
+do_test sqllimits1-7.7.3 {
+  execsql {
+    PRAGMA max_page_count;
+  }
+} $fsize
+do_test sqllimits1-7.7.4 {
+  execsql {
+    DROP TABLE abc;
+  }
+} {}
+
+#--------------------------------------------------------------------
+# Test cases sqllimits1-8.* test the SQLITE_MAX_COLUMN limit.
+#
+# EVIDENCE-OF: R-43996-29471 SQLITE_LIMIT_COLUMN The maximum number of
+# columns in a table definition or in the result set of a SELECT or the
+# maximum number of columns in an index or in an ORDER BY or GROUP BY
+# clause.
+#
+set SQLITE_LIMIT_COLUMN 200
+sqlite3_limit db SQLITE_LIMIT_COLUMN $SQLITE_LIMIT_COLUMN
+do_test sqllimits1-8.1 {
+  # Columns in a table.
+  set cols [list]
+  for {set i 0} {$i <= $SQLITE_LIMIT_COLUMN} {incr i} {
+    lappend cols "c$i"
+  }
+  catchsql "CREATE TABLE t([join $cols ,])" 
+} {1 {too many columns on t}}
+
+do_test sqllimits1-8.2 {
+  # Columns in the result-set of a SELECT.
+  set cols [list]
+  for {set i 0} {$i <= $SQLITE_LIMIT_COLUMN} {incr i} {
+    lappend cols "sql AS sql$i"
+  }
+  catchsql "SELECT [join $cols ,] FROM sqlite_master"
+} {1 {too many columns in result set}}
+
+do_test sqllimits1-8.3 {
+  # Columns in the result-set of a sub-SELECT.
+  set cols [list]
+  for {set i 0} {$i <= $SQLITE_LIMIT_COLUMN} {incr i} {
+    lappend cols "sql AS sql$i"
+  }
+  catchsql "SELECT sql4 FROM (SELECT [join $cols ,] FROM sqlite_master)"
+} {1 {too many columns in result set}}
+
+do_test sqllimits1-8.4 {
+  # Columns in an index.
+  set cols [list]
+  for {set i 0} {$i <= $SQLITE_LIMIT_COLUMN} {incr i} {
+    lappend cols c
+  }
+  set sql1 "CREATE TABLE t1(c);"
+  set sql2 "CREATE INDEX i1 ON t1([join $cols ,]);"
+  catchsql "$sql1 ; $sql2"
+} {1 {too many columns in index}}
+
+do_test sqllimits1-8.5 {
+  # Columns in a GROUP BY clause.
+  catchsql "SELECT * FROM t1 GROUP BY [join $cols ,]"
+} {1 {too many terms in GROUP BY clause}}
+
+do_test sqllimits1-8.6 {
+  # Columns in an ORDER BY clause.
+  catchsql "SELECT * FROM t1 ORDER BY [join $cols ,]"
+} {1 {too many terms in ORDER BY clause}}
+
+do_test sqllimits1-8.7 {
+  # Assignments in an UPDATE statement.
+  set cols [list]
+  for {set i 0} {$i <= $SQLITE_LIMIT_COLUMN} {incr i} {
+    lappend cols "c = 1"
+  }
+  catchsql "UPDATE t1 SET [join $cols ,];"
+} {1 {too many columns in set list}}
+
+do_test sqllimits1-8.8 {
+  # Columns in a view definition:
+  set cols [list]
+  for {set i 0} {$i <= $SQLITE_LIMIT_COLUMN} {incr i} {
+    lappend cols "c$i"
+  }
+  execsql "CREATE VIEW v1 AS SELECT [join $cols ,] FROM t1;"
+  catchsql {SELECT * FROM v1}
+} {1 {too many columns in result set}}
+
+do_test sqllimits1-8.9 {
+  # Columns in a view definition (testing * expansion):
+  set cols [list]
+  for {set i 0} {$i < $SQLITE_LIMIT_COLUMN} {incr i} {
+    lappend cols "c$i"
+  }
+  execsql {DROP VIEW IF EXISTS v1}
+  catchsql "CREATE TABLE t2([join $cols ,])"
+  catchsql "CREATE VIEW v1 AS SELECT *, c1 AS o FROM t2;"
+  catchsql "SELECT * FROM v1"
+} {1 {too many columns in result set}}
+
+do_test sqllimits1-8.10 {
+  # ORDER BY columns
+  set cols [list]
+  for {set i 0} {$i <= $SQLITE_LIMIT_COLUMN} {incr i} {
+    lappend cols c
+  }
+  set sql "SELECT c FROM t1 ORDER BY [join $cols ,]"
+  catchsql $sql
+} {1 {too many terms in ORDER BY clause}}
+do_test sqllimits1-8.11 {
+  # ORDER BY columns
+  set cols [list]
+  for {set i 0} {$i <= $SQLITE_LIMIT_COLUMN} {incr i} {
+    lappend cols [expr {$i%3 + 1}]
+  }
+  set sql "SELECT c, c+1, c+2 FROM t1 UNION SELECT c-1, c-2, c-3 FROM t1"
+  append sql " ORDER BY [join $cols ,]"
+  catchsql $sql
+} {1 {too many terms in ORDER BY clause}}
+
+
+#--------------------------------------------------------------------
+# These tests - sqllimits1-9.* - test that the SQLITE_LIMIT_EXPR_DEPTH
+# limit is enforced. The limit refers to the number of terms in 
+# the expression.
+#
+# EVIDENCE-OF: R-12723-08526 SQLITE_LIMIT_EXPR_DEPTH The maximum depth
+# of the parse tree on any expression.
+#
+if {$SQLITE_MAX_EXPR_DEPTH==0} {
+  puts -nonewline stderr "WARNING: Compile with -DSQLITE_MAX_EXPR_DEPTH to run "
+  puts stderr "tests sqllimits1-9.X"
+} else {
+  do_test sqllimits1-9.1 {
+    set max $::SQLITE_MAX_EXPR_DEPTH
+    set expr "(1 [string repeat {AND 1 } $max])"
+    catchsql [subst {
+      SELECT $expr
+    }]
+  } "1 {Expression tree is too large (maximum depth $::SQLITE_MAX_EXPR_DEPTH)}"
+  
+if 0 {  
+  # Attempting to beat the expression depth limit using nested SELECT
+  # queries causes a parser stack overflow. 
+  do_test sqllimits1-9.2 {
+    set max $::SQLITE_MAX_EXPR_DEPTH
+    set expr "SELECT 1"
+    for {set i 0} {$i <= $max} {incr i} {
+      set expr "SELECT ($expr)"
+    }
+    catchsql [subst { $expr }]
+  } "1 {parser stack overflow}"
+  
+  do_test sqllimits1-9.3 {
+    execsql {
+      PRAGMA max_page_count = 1000000;  -- 1 GB
+      CREATE TABLE v0(a);
+      INSERT INTO v0 VALUES(1);
+    }
+    db transaction {
+      for {set i 1} {$i < 200} {incr i} {
+        set expr "(a [string repeat {AND 1 } 50]) AS a"
+        execsql [subst {
+          CREATE VIEW v${i} AS SELECT $expr FROM v[expr {$i-1}]
+        }]
+      }
+    }
+  } {}
+  
+  do_test sqllimits1-9.4 {
+    catchsql {
+      SELECT a FROM v199
+    }
+  } "1 {Expression tree is too large (maximum depth $::SQLITE_MAX_EXPR_DEPTH)}"
+}
+}
+
+#--------------------------------------------------------------------
+# Test cases sqllimits1-10.* test that the SQLITE_MAX_VDBE_OP
+# limit works as expected. The limit refers to the number of opcodes
+# in a single VDBE program.
+#
+# TODO
+
+#--------------------------------------------------------------------
+# Test the SQLITE_LIMIT_FUNCTION_ARG limit works. Test case names
+# match the pattern "sqllimits1-11.*".
+#
+# EVIDENCE-OF: R-59001-45278 SQLITE_LIMIT_FUNCTION_ARG The maximum
+# number of arguments on a function.
+#
+for {set max 5} {$max<=$SQLITE_MAX_FUNCTION_ARG} {incr max} {
+  do_test sqllimits1-11.$max.1 {
+    set vals [list]
+    sqlite3_limit db SQLITE_LIMIT_FUNCTION_ARG $::max
+    for {set i 0} {$i < $::max} {incr i} {
+      lappend vals $i
+    }
+    catchsql "SELECT max([join $vals ,])"
+  } "0 [expr {$::max - 1}]"
+  do_test sqllimits1-11.$max.2 {
+    set vals [list]
+    for {set i 0} {$i <= $::max} {incr i} {
+      lappend vals $i
+    }
+    catchsql "SELECT max([join $vals ,])"
+  } {1 {too many arguments on function max}}
+
+  # Test that it is SQLite, and not the implementation of the
+  # user function that is throwing the error.
+  proc myfunc {args} {error "I don't like to be called!"}
+  do_test sqllimits1-11.$max.2 {
+    db function myfunc myfunc
+    set vals [list]
+    for {set i 0} {$i <= $::max} {incr i} {
+      lappend vals $i
+    }
+    catchsql "SELECT myfunc([join $vals ,])"
+  } {1 {too many arguments on function myfunc}}
+}
+
+#--------------------------------------------------------------------
+# Test cases sqllimits1-12.*: Test the SQLITE_MAX_ATTACHED limit.
+#
+# EVIDENCE-OF: R-41778-26203 SQLITE_LIMIT_ATTACHED The maximum number of
+# attached databases.
+#
+ifcapable attach {
+  do_test sqllimits1-12.1 {
+    set max $::SQLITE_MAX_ATTACHED
+    for {set i 0} {$i < ($max)} {incr i} {
+      forcedelete test${i}.db test${i}.db-journal
+    }
+    for {set i 0} {$i < ($max)} {incr i} {
+      execsql "ATTACH 'test${i}.db' AS aux${i}"
+    }
+    catchsql "ATTACH 'test${i}.db' AS aux${i}"
+  } "1 {too many attached databases - max $::SQLITE_MAX_ATTACHED}"
+  do_test sqllimits1-12.2 {
+    set max $::SQLITE_MAX_ATTACHED
+    for {set i 0} {$i < ($max)} {incr i} {
+      execsql "DETACH aux${i}"
+    }
+  } {}
+}
+
+#--------------------------------------------------------------------
+# Test cases sqllimits1-13.*: Check that the SQLITE_MAX_VARIABLE_NUMBER 
+# limit works.
+#
+# EVIDENCE-OF: R-42363-29104 SQLITE_LIMIT_VARIABLE_NUMBER The maximum
+# index number of any parameter in an SQL statement.
+#
+do_test sqllimits1-13.1 {
+  set max $::SQLITE_MAX_VARIABLE_NUMBER
+  catchsql "SELECT ?[expr {$max+1}] FROM t1"
+} "1 {variable number must be between ?1 and ?$::SQLITE_MAX_VARIABLE_NUMBER}"
+do_test sqllimits1-13.2 {
+  set max $::SQLITE_MAX_VARIABLE_NUMBER
+  set vals [list]
+  for {set i 0} {$i < ($max+3)} {incr i} {
+    lappend vals ?
+  }
+  catchsql "SELECT [join $vals ,] FROM t1"
+} "1 {too many SQL variables}"
+
+
+#--------------------------------------------------------------------
+# Test cases sqllimits1-15.* verify that the 
+# SQLITE_MAX_LIKE_PATTERN_LENGTH limit is enforced. This limit only
+# applies to the built-in LIKE operator, supplying an external 
+# implementation by overriding the like() scalar function bypasses
+# this limitation.
+#
+# EVIDENCE-OF: R-12940-37052 SQLITE_LIMIT_LIKE_PATTERN_LENGTH The
+# maximum length of the pattern argument to the LIKE or GLOB operators.
+#
+# These tests check that the limit is not incorrectly applied to
+# the left-hand-side of the LIKE operator (the string being tested
+# against the pattern).
+#
+set SQLITE_LIMIT_LIKE_PATTERN 1000
+sqlite3_limit db SQLITE_LIMIT_LIKE_PATTERN_LENGTH $SQLITE_LIMIT_LIKE_PATTERN
+do_test sqllimits1-15.1 {
+  set max $::SQLITE_LIMIT_LIKE_PATTERN
+  set ::pattern [string repeat "A%" [expr $max/2]]
+  set ::string  [string repeat "A" [expr {$max*2}]]
+  execsql {
+    SELECT $::string LIKE $::pattern;
+  }
+} {1}
+do_test sqllimits1-15.2 {
+  set max $::SQLITE_LIMIT_LIKE_PATTERN
+  set ::pattern [string repeat "A%" [expr {($max/2) + 1}]]
+  set ::string  [string repeat "A" [expr {$max*2}]]
+  catchsql {
+    SELECT $::string LIKE $::pattern;
+  }
+} {1 {LIKE or GLOB pattern too complex}}
+
+#--------------------------------------------------------------------
+# This test case doesn't really belong with the other limits tests.
+# It is in this file because it is taxing to run, like the limits tests.
+#
+# Update for 3.37.0: strftime() used to allocate a large static buffer
+# into which it would write its result. With that implementation, the
+# following would trigger an SQLITE_TOOBIG error. But strftime() now
+# uses the StrAccum functions, causing this test to fail.
+#
+#do_test sqllimits1-16.1 {
+#  set ::N [expr int(([expr pow(2,32)]/50) + 1)]
+#  expr (($::N*50) & 0xffffffff)<55
+#} {1}
+#do_test sqllimits1-16.2 {
+#  set ::format "[string repeat A 60][string repeat "%J" $::N]"
+#  catchsql {
+#    SELECT strftime($::format, 1);
+#  }
+#} {1 {string or blob too big}}
+
+do_catchsql_test sqllimits1.17.0 {
+  SELECT *,*,*,*,*,*,*,* FROM (
+  SELECT *,*,*,*,*,*,*,* FROM (
+  SELECT *,*,*,*,*,*,*,* FROM (
+  SELECT *,*,*,*,*,*,*,* FROM (
+  SELECT *,*,*,*,*,*,*,* FROM (
+    SELECT 1,2,3,4,5,6,7,8,9,10
+  )
+  ))))
+} "1 {too many columns in result set}"
+
+
+foreach {key value} [array get saved] {
+  catch {set $key $value}
+}
+
+#-------------------------------------------------------------------------
+# At one point the following caused an assert() to fail.
+#
+sqlite3_limit db SQLITE_LIMIT_LENGTH 10000
+set nm [string repeat x 10000]
+do_catchsql_test sqllimits1-17.1 "
+  CREATE TABLE $nm (x PRIMARY KEY)
+" {1 {string or blob too big}}
+
+#-------------------------------------------------------------------------
+#
+sqlite3_limit db SQLITE_LIMIT_COMPOUND_SELECT 10
+do_catchsql_test sqllimits1-18.1 {
+  CREATE TABLE b1(x);
+  INSERT INTO b1 VALUES(1), (2), (3), (4), (5), (6), (7), (8), (9), (10), (11);
+} {0 {}}
+
+do_catchsql_test sqllimits1-18.2 {
+  INSERT INTO b1 VALUES(1), (2), (3), (4), (5), (6), (7), (8), (9), (10)
+    UNION VALUES(11);
+} {0 {}}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+ifcapable utf16 {
+  do_execsql_test 19.0 {
+    PRAGMA encoding = 'utf16';
+  }
+  set bigstr [string repeat abcdefghij 5000]
+  set bigstr16 [encoding convertto unicode $bigstr]
+
+  do_test 19.1 {
+    string length $bigstr16
+  } {100000}
+
+  do_test 19.2 {
+    set ::stmt [sqlite3_prepare db "SELECT length( ? )" -1 TAIL]
+    sqlite3_bind_text16 $::stmt 1 $bigstr16 100000
+    sqlite3_step $::stmt
+    set val [sqlite3_column_int $::stmt 0]
+    sqlite3_finalize $::stmt
+    set val
+  } {50000}
+
+  sqlite3_limit db SQLITE_LIMIT_LENGTH 100000
+
+  do_test 19.3 {
+    set ::stmt [sqlite3_prepare db "SELECT length( ? )" -1 TAIL]
+    sqlite3_bind_text16 $::stmt 1 $bigstr16 100000
+    sqlite3_step $::stmt
+    set val [sqlite3_column_int $::stmt 0]
+    sqlite3_finalize $::stmt
+    set val
+  } {50000}
+
+  sqlite3_limit db SQLITE_LIMIT_LENGTH 99999
+
+  do_test 19.4 {
+    set ::stmt [sqlite3_prepare db "SELECT length( ? )" -1 TAIL]
+    list [catch { sqlite3_bind_text16 $::stmt 1 $bigstr16 100000 } msg] $msg
+  } {1 SQLITE_TOOBIG}
+  sqlite3_finalize $::stmt
+
+  sqlite3_limit db SQLITE_LIMIT_LENGTH 100000
+
+  do_test 19.5 {
+    set ::stmt [sqlite3_prepare db "SELECT length( ? )" -1 TAIL]
+    list [catch { sqlite3_bind_text16 $::stmt 1 $bigstr16 100002 } msg] $msg
+  } {1 SQLITE_TOOBIG}
+  sqlite3_finalize $::stmt
+}
+
+finish_test
diff --git a/test/sqllog.test b/test/sqllog.test
new file mode 100644
index 0000000000000000000000000000000000000000..53d8d871d8138622037b4607ad6aef439eccd080
--- /dev/null
+++ b/test/sqllog.test
@@ -0,0 +1,113 @@
+# 2015 November 13
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the test_sqllog.c module.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix sqllog
+
+ifcapable !sqllog {
+  finish_test
+  return
+}
+
+proc readfile {f} {
+  set fd [open $f]
+  set txt [read $fd]
+  close $fd
+  set txt
+}
+
+proc delete_all_sqllog_files {} {
+  forcedelete {*}[glob -nocomplain sqllog_*.sql]
+  forcedelete {*}[glob -nocomplain sqllog_*.db]
+  forcedelete {*}[glob -nocomplain sqllog_*.idx]
+}
+
+proc touch {f} {
+  set fd [open $f w+]
+  close $fd
+}
+
+db close
+sqlite3_shutdown
+set ::env(SQLITE_SQLLOG_DIR) [pwd]
+
+delete_all_sqllog_files
+
+sqlite3 db test.db
+set a a
+set b b
+do_execsql_test 1.0 {
+  CREATE TABLE t1(x, y);
+  INSERT INTO t1 VALUES(1, 2);
+  INSERT INTO t1 VALUES($a, $b);
+  SELECT * FROM t1;
+} {1 2 a b}
+db close
+
+do_test 1.1 {
+  readfile [lindex [glob sqllog_*.sql] 0]
+} [string trimleft {
+/-- Main database is '.*/sqllog_.*_0.db'
+CREATE TABLE t1\(x, y\);; -- clock=0
+INSERT INTO t1 VALUES\(1, 2\);; -- clock=1
+INSERT INTO t1 VALUES\('a', 'b'\);; -- clock=2
+SELECT . FROM t1;; -- clock=3
+/}]
+
+do_test 1.2 {
+  file size [lindex [glob sqllog_*_0.db] 0]
+} 1024
+
+#-------------------------------------------------------------------------
+catch { db close }
+sqlite3_shutdown
+delete_all_sqllog_files
+forcedelete test.db-sqllog
+
+set ::env(SQLITE_SQLLOG_CONDITIONAL) 1
+sqlite3 db test.db
+do_execsql_test 2.1 {
+  INSERT INTO t1 VALUES(4, 5);
+  SELECT * FROM t1;
+} {1 2 a b 4 5}
+
+do_test 2.2 {
+  glob -nocomplain sqllog_*
+} {}
+
+db close
+touch test.db-sqllog
+sqlite3 db test.db
+do_execsql_test 2.3 {
+  INSERT INTO t1 VALUES(6, 7);
+  SELECT * FROM t1;
+} {1 2 a b 4 5 6 7}
+db close
+
+do_test 2.4 {
+  readfile [lindex [glob sqllog_*.sql] 0]
+} [string trimleft {
+/-- Main database is '.*/sqllog_.*_0.db'
+INSERT INTO t1 VALUES\(6, 7\);; -- clock=0
+SELECT . FROM t1;; -- clock=1
+/}]
+
+catch { db close }
+sqlite3_shutdown
+unset ::env(SQLITE_SQLLOG_DIR)
+unset ::env(SQLITE_SQLLOG_CONDITIONAL)
+sqlite3_config_sqllog
+sqlite3_initialize
+finish_test
diff --git a/test/starschema1.test b/test/starschema1.test
new file mode 100644
index 0000000000000000000000000000000000000000..af8168b510c5b3309e331107809006972329e099
--- /dev/null
+++ b/test/starschema1.test
@@ -0,0 +1,584 @@
+# 2024-05-28
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+# Test cases for the ability of the query planner to cope with
+# star-schema queries on databases with goofy indexes.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix starschema1
+
+do_execsql_test 1.1 {
+CREATE TABLE t1(
+  a01 INT, a02 INT, a03 INT, a04 INT, a05 INT, a06 INT, a07 INT, a08 INT,
+  a09 INT, a10 INT, a11 INT, a12 INT, a13 INT, a14 INT, a15 INT, a16 INT,
+  a17 INT, a18 INT, a19 INT, a20 INT, a21 INT, a22 INT, a23 INT, a24 INT,
+  a25 INT, a26 INT, a27 INT, a28 INT, a29 INT, a30 INT, a31 INT, a32 INT,
+  a33 INT, a34 INT, a35 INT, a36 INT, a37 INT, a38 INT, a39 INT, a40 INT,
+  a41 INT, a42 INT, a43 INT, a44 INT, a45 INT, a46 INT, a47 INT, a48 INT,
+  a49 INT, a50 INT, a51 INT, a52 INT, a53 INT, a54 INT, a55 INT, a56 INT,
+  a57 INT, a58 INT, a59 INT, a60 INT, a61 INT, a62 INT, a63 INT, d TEXT);
+CREATE TABLE x01(b01 INT, c01 TEXT);
+CREATE TABLE x02(b02 INT, c02 TEXT);
+CREATE TABLE x03(b03 INT, c03 TEXT);
+CREATE TABLE x04(b04 INT, c04 TEXT);
+CREATE TABLE x05(b05 INT, c05 TEXT);
+CREATE TABLE x06(b06 INT, c06 TEXT);
+CREATE TABLE x07(b07 INT, c07 TEXT);
+CREATE TABLE x08(b08 INT, c08 TEXT);
+CREATE TABLE x09(b09 INT, c09 TEXT);
+CREATE TABLE x10(b10 INT, c10 TEXT);
+CREATE TABLE x11(b11 INT, c11 TEXT);
+CREATE TABLE x12(b12 INT, c12 TEXT);
+CREATE TABLE x13(b13 INT, c13 TEXT);
+CREATE TABLE x14(b14 INT, c14 TEXT);
+CREATE TABLE x15(b15 INT, c15 TEXT);
+CREATE TABLE x16(b16 INT, c16 TEXT);
+CREATE TABLE x17(b17 INT, c17 TEXT);
+CREATE TABLE x18(b18 INT, c18 TEXT);
+CREATE TABLE x19(b19 INT, c19 TEXT);
+CREATE TABLE x20(b20 INT, c20 TEXT);
+CREATE TABLE x21(b21 INT, c21 TEXT);
+CREATE TABLE x22(b22 INT, c22 TEXT);
+CREATE TABLE x23(b23 INT, c23 TEXT);
+CREATE TABLE x24(b24 INT, c24 TEXT);
+CREATE TABLE x25(b25 INT, c25 TEXT);
+CREATE TABLE x26(b26 INT, c26 TEXT);
+CREATE TABLE x27(b27 INT, c27 TEXT);
+CREATE TABLE x28(b28 INT, c28 TEXT);
+CREATE TABLE x29(b29 INT, c29 TEXT);
+CREATE TABLE x30(b30 INT, c30 TEXT);
+CREATE TABLE x31(b31 INT, c31 TEXT);
+CREATE TABLE x32(b32 INT, c32 TEXT);
+CREATE TABLE x33(b33 INT, c33 TEXT);
+CREATE TABLE x34(b34 INT, c34 TEXT);
+CREATE TABLE x35(b35 INT, c35 TEXT);
+CREATE TABLE x36(b36 INT, c36 TEXT);
+CREATE TABLE x37(b37 INT, c37 TEXT);
+CREATE TABLE x38(b38 INT, c38 TEXT);
+CREATE TABLE x39(b39 INT, c39 TEXT);
+CREATE TABLE x40(b40 INT, c40 TEXT);
+CREATE TABLE x41(b41 INT, c41 TEXT);
+CREATE TABLE x42(b42 INT, c42 TEXT);
+CREATE TABLE x43(b43 INT, c43 TEXT);
+CREATE TABLE x44(b44 INT, c44 TEXT);
+CREATE TABLE x45(b45 INT, c45 TEXT);
+CREATE TABLE x46(b46 INT, c46 TEXT);
+CREATE TABLE x47(b47 INT, c47 TEXT);
+CREATE TABLE x48(b48 INT, c48 TEXT);
+CREATE TABLE x49(b49 INT, c49 TEXT);
+CREATE TABLE x50(b50 INT, c50 TEXT);
+CREATE TABLE x51(b51 INT, c51 TEXT);
+CREATE TABLE x52(b52 INT, c52 TEXT);
+CREATE TABLE x53(b53 INT, c53 TEXT);
+CREATE TABLE x54(b54 INT, c54 TEXT);
+CREATE TABLE x55(b55 INT, c55 TEXT);
+CREATE TABLE x56(b56 INT, c56 TEXT);
+CREATE TABLE x57(b57 INT, c57 TEXT);
+CREATE TABLE x58(b58 INT, c58 TEXT);
+CREATE TABLE x59(b59 INT, c59 TEXT);
+CREATE TABLE x60(b60 INT, c60 TEXT);
+CREATE TABLE x61(b61 INT, c61 TEXT);
+CREATE TABLE x62(b62 INT, c62 TEXT);
+CREATE TABLE x63(b63 INT, c63 TEXT);
+/****  Uncomment to generate actual data ************************************
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<172800)
+  INSERT INTO t1
+    SELECT stmtrand()%12, stmtrand()%13, stmtrand()%14, stmtrand()%15,
+           stmtrand()%16, stmtrand()%17, stmtrand()%18, stmtrand()%19,
+           stmtrand()%20, stmtrand()%21, stmtrand()%22, stmtrand()%23,
+           stmtrand()%24, stmtrand()%25, stmtrand()%26, stmtrand()%27,
+           stmtrand()%28, stmtrand()%29, stmtrand()%30, stmtrand()%31,
+           stmtrand()%32, stmtrand()%33, stmtrand()%34, stmtrand()%35,
+           stmtrand()%36, stmtrand()%37, stmtrand()%38, stmtrand()%39,
+           stmtrand()%40, stmtrand()%41, stmtrand()%42, stmtrand()%43,
+           stmtrand()%28, stmtrand()%29, stmtrand()%30, stmtrand()%31,
+           stmtrand()%32, stmtrand()%33, stmtrand()%34, stmtrand()%35,
+           stmtrand()%36, stmtrand()%37, stmtrand()%38, stmtrand()%39,
+           stmtrand()%40, stmtrand()%41, stmtrand()%42, stmtrand()%43,
+           stmtrand()%28, stmtrand()%29, stmtrand()%30, stmtrand()%31,
+           stmtrand()%32, stmtrand()%33, stmtrand()%34, stmtrand()%35,
+           stmtrand()%36, stmtrand()%37, stmtrand()%38, stmtrand()%39,
+           stmtrand()%40, stmtrand()%41, stmtrand()%42, stmtrand() FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<8)
+  INSERT INTO x01 SELECT n%4, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<12)
+  INSERT INTO x02 SELECT n%6, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<16)
+  INSERT INTO x03 SELECT n%8, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<20)
+  INSERT INTO x04 SELECT n%10, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<24)
+  INSERT INTO x05 SELECT n%12, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<32)
+  INSERT INTO x06 SELECT n%16, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<36)
+  INSERT INTO x07 SELECT n%18, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<40)
+  INSERT INTO x08 SELECT n%20, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<44)
+  INSERT INTO x09 SELECT n%22, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<48)
+  INSERT INTO x10 SELECT n%24, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<52)
+  INSERT INTO x11 SELECT n%26, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<56)
+  INSERT INTO x12 SELECT n%28, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<60)
+  INSERT INTO x13 SELECT n%30, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<64)
+  INSERT INTO x14 SELECT n%32, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<72)
+  INSERT INTO x15 SELECT n%36, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<80)
+  INSERT INTO x16 SELECT n%40, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<8)
+  INSERT INTO x17 SELECT n%4, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<12)
+  INSERT INTO x18 SELECT n%6, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<16)
+  INSERT INTO x19 SELECT n%8, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<20)
+  INSERT INTO x20 SELECT n%10, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<24)
+  INSERT INTO x21 SELECT n%12, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<32)
+  INSERT INTO x22 SELECT n%16, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<36)
+  INSERT INTO x23 SELECT n%18, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<40)
+  INSERT INTO x24 SELECT n%20, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<44)
+  INSERT INTO x25 SELECT n%22, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<48)
+  INSERT INTO x26 SELECT n%24, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<52)
+  INSERT INTO x27 SELECT n%26, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<56)
+  INSERT INTO x28 SELECT n%28, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<60)
+  INSERT INTO x29 SELECT n%30, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<64)
+  INSERT INTO x30 SELECT n%32, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<72)
+  INSERT INTO x31 SELECT n%36, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<80)
+  INSERT INTO x32 SELECT n%40, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<8)
+  INSERT INTO x33 SELECT n%4, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<12)
+  INSERT INTO x34 SELECT n%6, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<16)
+  INSERT INTO x35 SELECT n%8, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<20)
+  INSERT INTO x36 SELECT n%10, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<24)
+  INSERT INTO x37 SELECT n%12, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<32)
+  INSERT INTO x38 SELECT n%16, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<36)
+  INSERT INTO x39 SELECT n%18, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<40)
+  INSERT INTO x40 SELECT n%20, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<44)
+  INSERT INTO x41 SELECT n%22, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<48)
+  INSERT INTO x42 SELECT n%24, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<52)
+  INSERT INTO x43 SELECT n%26, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<56)
+  INSERT INTO x44 SELECT n%28, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<60)
+  INSERT INTO x45 SELECT n%30, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<64)
+  INSERT INTO x46 SELECT n%32, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<72)
+  INSERT INTO x47 SELECT n%36, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<80)
+  INSERT INTO x48 SELECT n%40, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<8)
+  INSERT INTO x49 SELECT n%4, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<12)
+  INSERT INTO x50 SELECT n%6, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<16)
+  INSERT INTO x51 SELECT n%8, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<20)
+  INSERT INTO x52 SELECT n%10, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<24)
+  INSERT INTO x53 SELECT n%12, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<32)
+  INSERT INTO x54 SELECT n%16, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<36)
+  INSERT INTO x55 SELECT n%18, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<40)
+  INSERT INTO x56 SELECT n%20, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<44)
+  INSERT INTO x57 SELECT n%22, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<48)
+  INSERT INTO x58 SELECT n%24, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<52)
+  INSERT INTO x59 SELECT n%26, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<56)
+  INSERT INTO x60 SELECT n%28, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<60)
+  INSERT INTO x61 SELECT n%30, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<64)
+  INSERT INTO x62 SELECT n%32, format('%d-or-0x%04x',n,n) FROM c;
+WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<72)
+  INSERT INTO x63 SELECT n%36, format('%d-or-0x%04x',n,n) FROM c;
+****************************************************************************/
+CREATE INDEX t1a01 ON t1(a01);
+CREATE INDEX t1a02 ON t1(a02);
+CREATE INDEX t1a03 ON t1(a03);
+CREATE INDEX t1a04 ON t1(a04);
+CREATE INDEX t1a05 ON t1(a05);
+CREATE INDEX t1a06 ON t1(a06);
+CREATE INDEX t1a07 ON t1(a07);
+CREATE INDEX t1a08 ON t1(a08);
+CREATE INDEX t1a09 ON t1(a09);
+CREATE INDEX t1a10 ON t1(a10);
+CREATE INDEX t1a11 ON t1(a11);
+CREATE INDEX t1a12 ON t1(a12);
+CREATE INDEX t1a13 ON t1(a13);
+CREATE INDEX t1a14 ON t1(a14);
+CREATE INDEX t1a15 ON t1(a15);
+CREATE INDEX t1a16 ON t1(a16);
+CREATE INDEX t1a17 ON t1(a17);
+CREATE INDEX t1a18 ON t1(a18);
+CREATE INDEX t1a19 ON t1(a19);
+CREATE INDEX t1a20 ON t1(a20);
+CREATE INDEX t1a21 ON t1(a21);
+CREATE INDEX t1a22 ON t1(a22);
+CREATE INDEX t1a23 ON t1(a23);
+CREATE INDEX t1a24 ON t1(a24);
+CREATE INDEX t1a25 ON t1(a25);
+CREATE INDEX t1a26 ON t1(a26);
+CREATE INDEX t1a27 ON t1(a27);
+CREATE INDEX t1a28 ON t1(a28);
+CREATE INDEX t1a29 ON t1(a29);
+CREATE INDEX t1a30 ON t1(a30);
+CREATE INDEX t1a31 ON t1(a31);
+CREATE INDEX t1a32 ON t1(a32);
+CREATE INDEX t1a33 ON t1(a33);
+CREATE INDEX t1a34 ON t1(a34);
+CREATE INDEX t1a35 ON t1(a35);
+CREATE INDEX t1a36 ON t1(a36);
+CREATE INDEX t1a37 ON t1(a37);
+CREATE INDEX t1a38 ON t1(a38);
+CREATE INDEX t1a39 ON t1(a39);
+CREATE INDEX t1a40 ON t1(a40);
+CREATE INDEX t1a41 ON t1(a41);
+CREATE INDEX t1a42 ON t1(a42);
+CREATE INDEX t1a43 ON t1(a43);
+CREATE INDEX t1a44 ON t1(a44);
+CREATE INDEX t1a45 ON t1(a45);
+CREATE INDEX t1a46 ON t1(a46);
+CREATE INDEX t1a47 ON t1(a47);
+CREATE INDEX t1a48 ON t1(a48);
+CREATE INDEX t1a49 ON t1(a49);
+CREATE INDEX t1a50 ON t1(a50);
+CREATE INDEX t1a51 ON t1(a51);
+CREATE INDEX t1a52 ON t1(a52);
+CREATE INDEX t1a53 ON t1(a53);
+CREATE INDEX t1a54 ON t1(a54);
+CREATE INDEX t1a55 ON t1(a55);
+CREATE INDEX t1a56 ON t1(a56);
+CREATE INDEX t1a57 ON t1(a57);
+CREATE INDEX t1a58 ON t1(a58);
+CREATE INDEX t1a59 ON t1(a59);
+CREATE INDEX t1a60 ON t1(a60);
+CREATE INDEX t1a61 ON t1(a61);
+CREATE INDEX t1a62 ON t1(a62);
+CREATE INDEX t1a63 ON t1(a63);
+CREATE INDEX x01x ON x01(b01);
+CREATE INDEX x02x ON x02(b02);
+CREATE INDEX x03x ON x03(b03);
+CREATE INDEX x04x ON x04(b04);
+CREATE INDEX x05x ON x05(b05);
+CREATE INDEX x06x ON x06(b06);
+CREATE INDEX x07x ON x07(b07);
+CREATE INDEX x08x ON x08(b08);
+CREATE INDEX x09x ON x09(b09);
+CREATE INDEX x10x ON x10(b10);
+CREATE INDEX x11x ON x11(b11);
+CREATE INDEX x12x ON x12(b12);
+CREATE INDEX x13x ON x13(b13);
+CREATE INDEX x14x ON x14(b14);
+CREATE INDEX x15x ON x15(b15);
+CREATE INDEX x16x ON x16(b16);
+CREATE INDEX x17x ON x17(b17);
+CREATE INDEX x18x ON x18(b18);
+CREATE INDEX x19x ON x19(b19);
+CREATE INDEX x20x ON x20(b20);
+CREATE INDEX x21x ON x21(b21);
+CREATE INDEX x22x ON x22(b22);
+CREATE INDEX x23x ON x23(b23);
+CREATE INDEX x24x ON x24(b24);
+CREATE INDEX x25x ON x25(b25);
+CREATE INDEX x26x ON x26(b26);
+CREATE INDEX x27x ON x27(b27);
+CREATE INDEX x28x ON x28(b28);
+CREATE INDEX x29x ON x29(b29);
+CREATE INDEX x30x ON x30(b30);
+CREATE INDEX x31x ON x31(b31);
+CREATE INDEX x32x ON x32(b32);
+CREATE INDEX x33x ON x33(b33);
+CREATE INDEX x34x ON x34(b34);
+CREATE INDEX x35x ON x35(b35);
+CREATE INDEX x36x ON x36(b36);
+CREATE INDEX x37x ON x37(b37);
+CREATE INDEX x38x ON x38(b38);
+CREATE INDEX x39x ON x39(b39);
+CREATE INDEX x40x ON x40(b40);
+CREATE INDEX x41x ON x41(b41);
+CREATE INDEX x42x ON x42(b42);
+CREATE INDEX x43x ON x43(b43);
+CREATE INDEX x44x ON x44(b44);
+CREATE INDEX x45x ON x45(b45);
+CREATE INDEX x46x ON x46(b46);
+CREATE INDEX x47x ON x47(b47);
+CREATE INDEX x48x ON x48(b48);
+CREATE INDEX x49x ON x49(b49);
+CREATE INDEX x50x ON x50(b50);
+CREATE INDEX x51x ON x51(b51);
+CREATE INDEX x52x ON x52(b52);
+CREATE INDEX x53x ON x53(b53);
+CREATE INDEX x54x ON x54(b54);
+CREATE INDEX x55x ON x55(b55);
+CREATE INDEX x56x ON x56(b56);
+CREATE INDEX x57x ON x57(b57);
+CREATE INDEX x58x ON x58(b58);
+CREATE INDEX x59x ON x59(b59);
+CREATE INDEX x60x ON x60(b60);
+CREATE INDEX x61x ON x61(b61);
+CREATE INDEX x62x ON x62(b62);
+CREATE INDEX x63x ON x63(b63);
+ANALYZE sqlite_schema;
+INSERT INTO sqlite_stat1(tbl,idx,stat) VALUES
+  ('t1','t1a01','172800 14400'),
+  ('t1','t1a02','172800 13293'),
+  ('t1','t1a03','172800 12343'),
+  ('t1','t1a04','172800 11520'),
+  ('t1','t1a05','172800 10800'),
+  ('t1','t1a06','172800 10165'),
+  ('t1','t1a07','172800 9600'),
+  ('t1','t1a08','172800 9095'),
+  ('t1','t1a09','172800 8640'),
+  ('t1','t1a10','172800 8229'),
+  ('t1','t1a11','172800 7855'),
+  ('t1','t1a12','172800 7514'),
+  ('t1','t1a13','172800 7200'),
+  ('t1','t1a14','172800 6912'),
+  ('t1','t1a15','172800 6647'),
+  ('t1','t1a16','172800 6400'),
+  ('t1','t1a17','172800 6172'),
+  ('t1','t1a18','172800 5959'),
+  ('t1','t1a19','172800 5760'),
+  ('t1','t1a20','172800 5575'),
+  ('t1','t1a21','172800 5400'),
+  ('t1','t1a22','172800 5237'),
+  ('t1','t1a23','172800 5083'),
+  ('t1','t1a24','172800 4938'),
+  ('t1','t1a25','172800 4800'),
+  ('t1','t1a26','172800 4671'),
+  ('t1','t1a27','172800 4548'),
+  ('t1','t1a28','172800 4431'),
+  ('t1','t1a29','172800 4320'),
+  ('t1','t1a30','172800 4215'),
+  ('t1','t1a31','172800 4115'),
+  ('t1','t1a32','172800 4019'),
+  ('t1','t1a33','172800 6172'),
+  ('t1','t1a34','172800 5959'),
+  ('t1','t1a35','172800 5760'),
+  ('t1','t1a36','172800 5575'),
+  ('t1','t1a37','172800 5400'),
+  ('t1','t1a38','172800 5237'),
+  ('t1','t1a39','172800 5083'),
+  ('t1','t1a40','172800 4938'),
+  ('t1','t1a41','172800 4800'),
+  ('t1','t1a42','172800 4671'),
+  ('t1','t1a43','172800 4548'),
+  ('t1','t1a44','172800 4431'),
+  ('t1','t1a45','172800 4320'),
+  ('t1','t1a46','172800 4215'),
+  ('t1','t1a47','172800 4115'),
+  ('t1','t1a48','172800 4019'),
+  ('t1','t1a49','172800 6172'),
+  ('t1','t1a50','172800 5959'),
+  ('t1','t1a51','172800 5760'),
+  ('t1','t1a52','172800 5575'),
+  ('t1','t1a53','172800 5400'),
+  ('t1','t1a54','172800 5237'),
+  ('t1','t1a55','172800 5083'),
+  ('t1','t1a56','172800 4938'),
+  ('t1','t1a57','172800 4800'),
+  ('t1','t1a58','172800 4671'),
+  ('t1','t1a59','172800 4548'),
+  ('t1','t1a60','172800 4431'),
+  ('t1','t1a61','172800 4320'),
+  ('t1','t1a62','172800 4215'),
+  ('t1','t1a63','172800 4115'),
+  ('x01','x01x','80 2'),
+  ('x02','x02x','120 2'),
+  ('x03','x03x','160 2'),
+  ('x04','x04x','20 2'),
+  ('x05','x05x','24 2'),
+  ('x06','x06x','32 2'),
+  ('x07','x07x','36 2'),
+  ('x08','x08x','40 2'),
+  ('x09','x09x','44 2'),
+  ('x10','x10x','48 2'),
+  ('x11','x11x','52 2'),
+  ('x12','x12x','56 2'),
+  ('x13','x13x','60 2'),
+  ('x14','x14x','64 2'),
+  ('x15','x15x','72 2'),
+  ('x16','x16x','80 2'),
+  ('x17','x17x','80 2'),
+  ('x18','x18x','120 2'),
+  ('x19','x19x','160 2'),
+  ('x20','x20x','20 2'),
+  ('x21','x21x','24 2'),
+  ('x22','x22x','32 2'),
+  ('x23','x23x','36 2'),
+  ('x24','x24x','40 2'),
+  ('x25','x25x','44 2'),
+  ('x26','x26x','48 2'),
+  ('x27','x27x','52 2'),
+  ('x28','x28x','56 2'),
+  ('x29','x29x','60 2'),
+  ('x30','x30x','64 2'),
+  ('x31','x31x','72 2'),
+  ('x32','x32x','80 2'),
+  ('x33','x33x','80 2'),
+  ('x34','x34x','120 2'),
+  ('x35','x35x','160 2'),
+  ('x36','x36x','20 2'),
+  ('x37','x37x','24 2'),
+  ('x38','x38x','32 2'),
+  ('x39','x39x','36 2'),
+  ('x40','x40x','40 2'),
+  ('x41','x41x','44 2'),
+  ('x42','x42x','48 2'),
+  ('x43','x43x','52 2'),
+  ('x44','x44x','56 2'),
+  ('x45','x45x','60 2'),
+  ('x46','x46x','64 2'),
+  ('x47','x47x','72 2'),
+  ('x48','x48x','80 2'),
+  ('x49','x49x','80 2'),
+  ('x50','x50x','120 2'),
+  ('x51','x51x','160 2'),
+  ('x52','x52x','20 2'),
+  ('x53','x53x','24 2'),
+  ('x54','x54x','32 2'),
+  ('x55','x55x','36 2'),
+  ('x56','x56x','40 2'),
+  ('x57','x57x','44 2'),
+  ('x58','x58x','48 2'),
+  ('x59','x59x','52 2'),
+  ('x60','x60x','56 2'),
+  ('x61','x61x','60 2'),
+  ('x62','x62x','64 2'),
+  ('x63','x63x','72 2');
+ANALYZE sqlite_schema;
+}
+do_execsql_test 1.2 {
+  EXPLAIN QUERY PLAN
+  SELECT c01, c02, c03
+    FROM t1, x01, x02, x03
+   WHERE a01=b01 AND a02=b02 AND a03=b03;
+} {/SCAN t1.*SEARCH.*SEARCH.*SEARCH/}  
+do_execsql_test 1.3 {
+  EXPLAIN QUERY PLAN
+  SELECT c01, c02, c03, c04
+    FROM t1, x01, x02, x03, x04
+   WHERE a01=b01 AND a02=b02 AND a03=b03 AND a04=b04;
+} {/SCAN .*SEARCH .*SEARCH .*SEARCH .*SEARCH /}  
+do_execsql_test 1.4 {
+  EXPLAIN QUERY PLAN
+  SELECT c01, c02, c03, c04, c05
+    FROM t1, x01, x02, x03, x04, x05
+   WHERE a01=b01 AND a02=b02 AND a03=b03 AND a04=b04 AND a05=b05;
+} {/SCAN .*SEARCH .*SEARCH .*SEARCH .*SEARCH .*SEARCH/}  
+do_execsql_test 1.5 {
+  EXPLAIN QUERY PLAN
+  SELECT c01, c02, c03, c04, c05, c06
+    FROM t1, x01, x02, x03, x04, x05, x06
+   WHERE a01=b01 AND a02=b02 AND a03=b03 AND a04=b04 AND a05=b05
+     AND a06=b06;
+} {/SCAN .*SEARCH .*SEARCH .*SEARCH .*SEARCH .*SEARCH .*SEARCH/}  
+do_execsql_test 1.6 {
+  EXPLAIN QUERY PLAN
+  SELECT c01, c02, c03, c04, c05, c06, c07
+    FROM t1, x01, x02, x03, x04, x05, x06, x07
+   WHERE a01=b01 AND a02=b02 AND a03=b03 AND a04=b04 AND a05=b05
+     AND a06=b06 AND a07=b07;
+} {/SCAN .*SEARCH .*SEARCH .*SEARCH .*SEARCH .*SEARCH .*SEARCH .*SEARCH/}  
+do_execsql_test 1.7 {
+  EXPLAIN QUERY PLAN
+  SELECT c01, c02, c03, c04, c05, c06, c07, c08
+    FROM t1, x01, x02, x03, x04, x05, x06, x07, x08
+   WHERE a01=b01 AND a02=b02 AND a03=b03 AND a04=b04 AND a05=b05
+     AND a06=b06 AND a07=b07 AND a08=b08;
+} {~/SCAN.*SCAN/}
+do_execsql_test 1.8 {
+  EXPLAIN QUERY PLAN
+  SELECT c01, c02, c03, c04, c05, c06, c07, c08,
+         c09, c10, c11, c12, c13, c14, c15, c16,
+         c17, c18, c19, c20, c21, c22, c23, c24,
+         c25, c26, c27, c28, c29, c30, c31, c32
+    FROM t1, x01, x02, x03, x04, x05, x06, x07, x08,
+             x09, x10, x11, x12, x13, x14, x15, x16,
+             x17, x18, x19, x20, x21, x22, x23, x24,
+             x25, x26, x27, x28, x29, x30, x31, x32
+   WHERE a01=b01 AND a02=b02 AND a03=b03 AND a04=b04 AND a05=b05 AND a06=b06
+     AND a07=b07 AND a08=b08 AND a09=b09 AND a10=b10 AND a11=b11 AND a12=b12
+     AND a13=b13 AND a14=b14 AND a15=b15 AND a16=b16 AND a17=b17 AND a18=b18
+     AND a19=b19 AND a20=b20 AND a21=b21 AND a22=b22 AND a23=b23 AND a24=b24
+     AND a25=b25 AND a26=b26 AND a27=b27 AND a28=b28 AND a29=b29 AND a30=b30
+     AND a31=b31 AND a32=b32;
+} {~/SCAN.*SCAN/}
+do_execsql_test 1.9 {
+  EXPLAIN QUERY PLAN
+  SELECT c01, c02, c03, c04, c05, c06, c07, c08,
+         c09, c10, c11, c12, c13, c14, c15, c16,
+         c17, c18, c19, c20, c21, c22, c23, c24,
+         c25, c26, c27, c28, c29, c30, c31, c32,
+         c33, c34, c35, c36, c37, c38, c39, c40,
+         c41, c42, c43, c44, c45, c46, c47, c48,
+         c49, c50, c51, c52, c53, c54, c55, c56,
+         c57, c58, c59, c60, c61, c62, c63
+    FROM t1, x01, x02, x03, x04, x05, x06, x07, x08,
+             x09, x10, x11, x12, x13, x14, x15, x16,
+             x17, x18, x19, x20, x21, x22, x23, x24,
+             x25, x26, x27, x28, x29, x30, x31, x32,
+             x33, x34, x35, x36, x37, x38, x39, x40,
+             x41, x42, x43, x44, x45, x46, x47, x48,
+             x49, x50, x51, x52, x53, x54, x55, x56,
+             x57, x58, x59, x60, x61, x62, x63
+   WHERE a01=b01 AND a02=b02 AND a03=b03 AND a04=b04 AND a05=b05 AND a06=b06
+     AND a07=b07 AND a08=b08 AND a09=b09 AND a10=b10 AND a11=b11 AND a12=b12
+     AND a13=b13 AND a14=b14 AND a15=b15 AND a16=b16 AND a17=b17 AND a18=b18
+     AND a19=b19 AND a20=b20 AND a21=b21 AND a22=b22 AND a23=b23 AND a24=b24
+     AND a25=b25 AND a26=b26 AND a27=b27 AND a28=b28 AND a29=b29 AND a30=b30
+     AND a31=b31 AND a32=b32 AND a33=b33 AND a34=b34 AND a35=b35 AND a36=b36
+     AND a37=b37 AND a38=b38 AND a39=b39 AND a40=b40 AND a41=b41 AND a42=b42
+     AND a43=b43 AND a44=b44 AND a45=b45 AND a46=b46 AND a47=b47 AND a48=b48
+     AND a49=b49 AND a50=b50 AND a51=b51 AND a52=b52 AND a53=b53 AND a54=b54
+     AND a55=b55 AND a56=b56 AND a57=b57 AND a58=b58 AND a59=b59 AND a60=b60
+     AND a61=b61 AND a62=b62 AND a63=b63;
+} {~/SCAN.*SCAN/}
+
+
+
+finish_test
diff --git a/test/startup.c b/test/startup.c
new file mode 100644
index 0000000000000000000000000000000000000000..7262189229606afa3818bf72714102d5bd50aff5
--- /dev/null
+++ b/test/startup.c
@@ -0,0 +1,628 @@
+/*
+** 2021-01-01
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** 
+** This file implements a program used to measure the start-up performance
+** of SQLite.
+**
+** To use:
+**
+**     ./startup init
+**     valgrind --tool=cachegrind ./startup run
+**
+**
+** The "./startup init" command creates the test database file named
+** "startup.db".  The performance test is run by the "./startup run"
+** command.  That command does nothing but open the database file and
+** parse the entire schema.
+*/
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include "sqlite3.h"
+
+static const char zHelp[] =
+  "Usage: %s COMMAND\n"
+  "Commands:\n"
+  "  init                Initialized the startup.db database file\n"
+  "  run                 Run the startup performance test\n"
+  "Options:\n"
+  "  --dbname NAME       Set the name of the test database file\n"
+  "  --heap SZ MIN       Memory allocator uses SZ bytes & min allocation MIN\n"
+  "  --stats             Show statistics at the end\n"
+/* TBD
+  "  --journal M         Set the journal_mode to M\n"
+  "  --lookaside N SZ    Configure lookaside for N slots of SZ bytes each\n"
+  "  --mmap SZ           MMAP the first SZ bytes of the database file\n"
+  "  --multithread       Set multithreaded mode\n"
+  "  --nomemstat         Disable memory statistics\n"
+  "  --pagesize N        Set the page size to N\n"
+  "  --pcache N SZ       Configure N pages of pagecache each of size SZ bytes\n"
+  "  --serialized        Set serialized threading mode\n"
+  "  --singlethread      Set single-threaded mode - disables all mutexing\n"
+  "  --utf16be           Set text encoding to UTF-16BE\n"
+  "  --utf16le           Set text encoding to UTF-16LE\n"
+  "  --utf8              Set text encoding to UTF-8\n"
+*/
+;
+
+static void usage(const char *argv0){
+  printf(zHelp, argv0);
+  exit(1);
+}
+
+/*
+** The test schema is derived from the Fossil repository for SQLite itself.
+** The schema covers the repository, the local checkout database, and
+** the global configuration database.
+*/
+static const char zTestSchema[] = 
+  "CREATE TABLE repo_blob(\n"
+  "  rid INTEGER PRIMARY KEY,\n"
+  "  rcvid INTEGER,\n"
+  "  size INTEGER,\n"
+  "  uuid TEXT UNIQUE NOT NULL,\n"
+  "  content BLOB,\n"
+  "  CHECK( length(uuid)>=40 AND rid>0 )\n"
+  ");\n"
+  "CREATE TABLE repo_delta(\n"
+  "  rid INTEGER PRIMARY KEY,\n"
+  "  srcid INTEGER NOT NULL REFERENCES blob\n"
+  ");\n"
+  "CREATE TABLE repo_rcvfrom(\n"
+  "  rcvid INTEGER PRIMARY KEY,\n"
+  "  uid INTEGER REFERENCES user,\n"
+  "  mtime DATETIME,\n"
+  "  nonce TEXT UNIQUE,\n"
+  "  ipaddr TEXT\n"
+  ");\n"
+  "CREATE TABLE repo_private(rid INTEGER PRIMARY KEY);\n"
+  "CREATE TABLE repo_accesslog(\n"
+  "  uname TEXT,\n"
+  "  ipaddr TEXT,\n"
+  "  success BOOLEAN,\n"
+  "  mtime TIMESTAMP);\n"
+  "CREATE TABLE repo_user(\n"
+  "  uid INTEGER PRIMARY KEY,\n"
+  "  login TEXT UNIQUE,\n"
+  "  pw TEXT,\n"
+  "  cap TEXT,\n"
+  "  cookie TEXT,\n"
+  "  ipaddr TEXT,\n"
+  "  cexpire DATETIME,\n"
+  "  info TEXT,\n"
+  "  mtime DATE,\n"
+  "  photo BLOB\n"
+  ");\n"
+  "CREATE TABLE repo_reportfmt(\n"
+  "   rn INTEGER PRIMARY KEY,\n"
+  "   owner TEXT,\n"
+  "   title TEXT UNIQUE,\n"
+  "   mtime INTEGER,\n"
+  "   cols TEXT,\n"
+  "   sqlcode TEXT\n"
+  ");\n"
+  "CREATE TABLE repo_sqlite_stat2(tbl,idx,sampleno,sample);\n"
+  "CREATE TABLE repo_sqlite_stat1(tbl,idx,stat);\n"
+  "CREATE TABLE repo_sqlite_stat3(tbl,idx,neq,nlt,ndlt,sample);\n"
+  "CREATE TABLE repo_config(\n"
+  "  name TEXT PRIMARY KEY NOT NULL,\n"
+  "  value CLOB, mtime INTEGER,\n"
+  "  CHECK( typeof(name)='text' AND length(name)>=1 )\n"
+  ") WITHOUT ROWID;\n"
+  "CREATE TABLE repo_shun(uuid PRIMARY KEY,\n"
+  "  mtime INTEGER,\n"
+  "  scom TEXT) WITHOUT ROWID;\n"
+  "CREATE TABLE repo_concealed(\n"
+  "  hash TEXT PRIMARY KEY,\n"
+  "  content TEXT\n"
+  ", mtime INTEGER) WITHOUT ROWID;\n"
+  "CREATE TABLE repo_admin_log(\n"
+  " id INTEGER PRIMARY KEY,\n"
+  " time INTEGER, -- Seconds since 1970\n"
+  " page TEXT,    -- path of page\n"
+  " who TEXT,     -- User who made the change\n"
+  "  what TEXT     -- What changed\n"
+  ");\n"
+  "CREATE TABLE repo_unversioned(\n"
+  "  name TEXT PRIMARY KEY,\n"
+  "  rcvid INTEGER,\n"
+  "  mtime DATETIME,\n"
+  "  hash TEXT,\n"
+  "  sz INTEGER,\n"
+  "  encoding INT,\n"
+  "  content BLOB\n"
+  ") WITHOUT ROWID;\n"
+  "CREATE TABLE repo_subscriber(\n"
+  "  subscriberId INTEGER PRIMARY KEY,\n"
+  "  subscriberCode BLOB DEFAULT (randomblob(32)) UNIQUE,\n"
+  "  semail TEXT UNIQUE COLLATE nocase,\n"
+  "  suname TEXT,\n"
+  "  sverified BOOLEAN DEFAULT true,\n"
+  "  sdonotcall BOOLEAN,\n"
+  "  sdigest BOOLEAN,\n"
+  "  ssub TEXT,\n"
+  "  sctime INTDATE,\n"
+  "  mtime INTDATE,\n"
+  "  smip TEXT\n"
+  ");\n"
+  "CREATE TABLE repo_pending_alert(\n"
+  "  eventid TEXT PRIMARY KEY,\n"
+  "  sentSep BOOLEAN DEFAULT false,\n"
+  "  sentDigest BOOLEAN DEFAULT false\n"
+  ", sentMod BOOLEAN DEFAULT false) WITHOUT ROWID;\n"
+  "CREATE INDEX repo_delta_i1 ON repo_delta(srcid);\n"
+  "CREATE INDEX repo_blob_rcvid ON repo_blob(rcvid);\n"
+  "CREATE INDEX repo_subscriberUname\n"
+  "  ON repo_subscriber(suname) WHERE suname IS NOT NULL;\n"
+  "CREATE VIEW repo_artifact(rid,rcvid,size,atype,srcid,hash,content) AS\n"
+  "     SELECT blob.rid,rcvid,size,1,srcid,uuid,content\n"
+  "       FROM repo_blob LEFT JOIN repo_delta ON (blob.rid=delta.rid);\n"
+  "CREATE TABLE repo_filename(\n"
+  "  fnid INTEGER PRIMARY KEY,\n"
+  "  name TEXT UNIQUE\n"
+  ");\n"
+  "CREATE TABLE repo_mlink(\n"
+  "  mid INTEGER,\n"
+  "  fid INTEGER,\n"
+  "  pmid INTEGER,\n"
+  "  pid INTEGER,\n"
+  "  fnid INTEGER REFERENCES filename,\n"
+  "  pfnid INTEGER,\n"
+  "  mperm INTEGER,\n"
+  "  isaux BOOLEAN DEFAULT 0\n"
+  ");\n"
+  "CREATE INDEX repo_mlink_i1 ON repo_mlink(mid);\n"
+  "CREATE INDEX repo_mlink_i2 ON repo_mlink(fnid);\n"
+  "CREATE INDEX repo_mlink_i3 ON repo_mlink(fid);\n"
+  "CREATE INDEX repo_mlink_i4 ON repo_mlink(pid);\n"
+  "CREATE TABLE repo_plink(\n"
+  "  pid INTEGER REFERENCES blob,\n"
+  "  cid INTEGER REFERENCES blob,\n"
+  "  isprim BOOLEAN,\n"
+  "  mtime DATETIME,\n"
+  "  baseid INTEGER REFERENCES blob,\n"
+  "  UNIQUE(pid, cid)\n"
+  ");\n"
+  "CREATE INDEX repo_plink_i2 ON repo_plink(cid,pid);\n"
+  "CREATE TABLE repo_leaf(rid INTEGER PRIMARY KEY);\n"
+  "CREATE TABLE repo_event(\n"
+  "  type TEXT,\n"
+  "  mtime DATETIME,\n"
+  "  objid INTEGER PRIMARY KEY,\n"
+  "  tagid INTEGER,\n"
+  "  uid INTEGER REFERENCES user,\n"
+  "  bgcolor TEXT,\n"
+  "  euser TEXT,\n"
+  "  user TEXT,\n"
+  "  ecomment TEXT,\n"
+  "  comment TEXT,\n"
+  "  brief TEXT,\n"
+  "  omtime DATETIME\n"
+  ");\n"
+  "CREATE INDEX repo_event_i1 ON repo_event(mtime);\n"
+  "CREATE TABLE repo_phantom(\n"
+  "  rid INTEGER PRIMARY KEY\n"
+  ");\n"
+  "CREATE TABLE repo_orphan(\n"
+  "  rid INTEGER PRIMARY KEY,\n"
+  "  baseline INTEGER\n"
+  ");\n"
+  "CREATE INDEX repo_orphan_baseline ON repo_orphan(baseline);\n"
+  "CREATE TABLE repo_unclustered(\n"
+  "  rid INTEGER PRIMARY KEY\n"
+  ");\n"
+  "CREATE TABLE repo_unsent(\n"
+  "  rid INTEGER PRIMARY KEY\n"
+  ");\n"
+  "CREATE TABLE repo_tag(\n"
+  "  tagid INTEGER PRIMARY KEY,\n"
+  "  tagname TEXT UNIQUE\n"
+  ");\n"
+  "CREATE TABLE repo_tagxref(\n"
+  "  tagid INTEGER REFERENCES tag,\n"
+  "  tagtype INTEGER,\n"
+  "  srcid INTEGER REFERENCES blob,\n"
+  "  origid INTEGER REFERENCES blob,\n"
+  "  value TEXT,\n"
+  "  mtime TIMESTAMP,\n"
+  "  rid INTEGER REFERENCE blob,\n"
+  "  UNIQUE(rid, tagid)\n"
+  ");\n"
+  "CREATE INDEX repo_tagxref_i1 ON repo_tagxref(tagid, mtime);\n"
+  "CREATE TABLE repo_backlink(\n"
+  "  target TEXT,\n"
+  "  srctype INT,\n"
+  "  srcid INT,\n"
+  "  mtime TIMESTAMP,\n"
+  "  UNIQUE(target, srctype, srcid)\n"
+  ");\n"
+  "CREATE INDEX repo_backlink_src ON repo_backlink(srcid, srctype);\n"
+  "CREATE TABLE repo_attachment(\n"
+  "  attachid INTEGER PRIMARY KEY,\n"
+  "  isLatest BOOLEAN DEFAULT 0,\n"
+  "  mtime TIMESTAMP,\n"
+  "  src TEXT,\n"
+  "  target TEXT,\n"
+  "  filename TEXT,\n"
+  "  comment TEXT,\n"
+  "  user TEXT\n"
+  ");\n"
+  "CREATE INDEX repo_attachment_idx1\n"
+  " ON repo_attachment(target, filename, mtime);\n"
+  "CREATE INDEX repo_attachment_idx2 ON repo_attachment(src);\n"
+  "CREATE TABLE repo_cherrypick(\n"
+  "  parentid INT,\n"
+  "  childid INT,\n"
+  "  isExclude BOOLEAN DEFAULT false,\n"
+  "  PRIMARY KEY(parentid, childid)\n"
+  ") WITHOUT ROWID;\n"
+  "CREATE INDEX repo_cherrypick_cid ON repo_cherrypick(childid);\n"
+  "CREATE TABLE repo_ticket(\n"
+  "  -- Do not change any column that begins with tkt_\n"
+  "  tkt_id INTEGER PRIMARY KEY,\n"
+  "  tkt_uuid TEXT UNIQUE,\n"
+  "  tkt_mtime DATE,\n"
+  "  tkt_ctime DATE,\n"
+  "  -- Add as many fields as required below this line\n"
+  "  type TEXT,\n"
+  "  status TEXT,\n"
+  "  subsystem TEXT,\n"
+  "  priority TEXT,\n"
+  "  severity TEXT,\n"
+  "  foundin TEXT,\n"
+  "  private_contact TEXT,\n"
+  "  resolution TEXT,\n"
+  "  title TEXT,\n"
+  "  comment TEXT\n"
+  ");\n"
+  "CREATE TABLE repo_ticketchng(\n"
+  "  -- Do not change any column that begins with tkt_\n"
+  "  tkt_id INTEGER REFERENCES ticket,\n"
+  "  tkt_rid INTEGER REFERENCES blob,\n"
+  "  tkt_mtime DATE,\n"
+  "  -- Add as many fields as required below this line\n"
+  "  login TEXT,\n"
+  "  username TEXT,\n"
+  "  mimetype TEXT,\n"
+  "  icomment TEXT\n"
+  ");\n"
+  "CREATE INDEX repo_ticketchng_idx1 ON repo_ticketchng(tkt_id, tkt_mtime);\n"
+  "CREATE TRIGGER repo_alert_trigger1\n"
+  "AFTER INSERT ON repo_event BEGIN\n"
+  "  INSERT INTO repo_pending_alert(eventid)\n"
+  "    SELECT printf('%.1c%d',new.type,new.objid) WHERE true\n"
+  "    ON CONFLICT(eventId) DO NOTHING;\n"
+  "END;\n"
+  "CREATE TABLE repo_vcache(\n"
+  "  vid INTEGER,         -- check-in ID\n"
+  "  fname TEXT,          -- filename\n"
+  "  rid INTEGER,         -- artifact ID\n"
+  "  PRIMARY KEY(vid,fname)\n"
+  ") WITHOUT ROWID;\n"
+  "CREATE TABLE localdb_vvar(\n"
+  "  name TEXT PRIMARY KEY NOT NULL,\n"
+  "  value CLOB,\n"
+  "  CHECK( typeof(name)='text' AND length(name)>=1 )\n"
+  ");\n"
+  "CREATE TABLE localdb_vfile(\n"
+  "  id INTEGER PRIMARY KEY,\n"
+  "  vid INTEGER REFERENCES blob,\n"
+  "  chnged INT DEFAULT 0,\n"
+  "  deleted BOOLEAN DEFAULT 0,\n"
+  "  isexe BOOLEAN,\n"
+  "  islink BOOLEAN,\n"
+  "  rid INTEGER,\n"
+  "  mrid INTEGER,\n"
+  "  mtime INTEGER,\n"
+  "  pathname TEXT,\n"
+  "  origname TEXT, mhash,\n"
+  "  UNIQUE(pathname,vid)\n"
+  ");\n"
+  "CREATE TABLE localdb_sqlite_stat1(tbl,idx,stat);\n"
+  "CREATE TABLE localdb_vcache(\n"
+  "  vid INTEGER,         -- check-in ID\n"
+  "  fname TEXT,          -- filename\n"
+  "  rid INTEGER,         -- artifact ID\n"
+  "  PRIMARY KEY(vid,fname)\n"
+  ") WITHOUT ROWID;\n"
+  "CREATE TABLE localdb_stash(\n"
+  "  stashid INTEGER PRIMARY KEY,\n"
+  "  vid INTEGER,\n"
+  "  hash TEXT,\n"
+  "  comment TEXT,\n"
+  "  ctime TIMESTAMP\n"
+  ");\n"
+  "CREATE TABLE localdb_stashfile(\n"
+  "  stashid INTEGER REFERENCES stash,\n"
+  "  isAdded BOOLEAN,\n"
+  "  isRemoved BOOLEAN,\n"
+  "  isExec BOOLEAN,\n"
+  "  isLink BOOLEAN,\n"
+  "  rid INTEGER,\n"
+  "  hash TEXT,\n"
+  "  origname TEXT,\n"
+  "  newname TEXT,\n"
+  "  delta BLOB,\n"
+  "  PRIMARY KEY(newname, stashid)\n"
+  ");\n"
+  "CREATE TABLE localdb_vmerge(\n"
+  "  id INTEGER REFERENCES vfile,\n"
+  "  merge INTEGER,\n"
+  "  mhash TEXT\n"
+  ");\n"
+  "CREATE UNIQUE INDEX localdb_vmergex1 ON localdb_vmerge(id,mhash);\n"
+  "CREATE TRIGGER localdb_vmerge_ck1 AFTER INSERT ON localdb_vmerge\n"
+  "WHEN new.mhash IS NULL BEGIN\n"
+  "  SELECT raise(FAIL,\n"
+  "  'trying to update a newer checkout with an older version of Fossil');\n"
+  "END;\n"
+  "CREATE TABLE configdb_global_config(\n"
+  "  name TEXT PRIMARY KEY,\n"
+  "  value TEXT\n"
+  ");\n"
+  "CREATE TABLE configdb_sqlite_stat1(tbl,idx,stat);\n"
+;
+
+#ifdef __linux__
+#include <sys/types.h>
+#include <unistd.h>
+
+/*
+** Attempt to display I/O stats on Linux using /proc/PID/io
+*/
+static void displayLinuxIoStats(FILE *out){
+  FILE *in;
+  char z[200];
+  sqlite3_snprintf(sizeof(z), z, "/proc/%d/io", getpid());
+  in = fopen(z, "rb");
+  if( in==0 ) return;
+  while( fgets(z, sizeof(z), in)!=0 ){
+    static const struct {
+      const char *zPattern;
+      const char *zDesc;
+    } aTrans[] = {
+      { "rchar: ",                  "Bytes received by read():" },
+      { "wchar: ",                  "Bytes sent to write():"    },
+      { "syscr: ",                  "Read() system calls:"      },
+      { "syscw: ",                  "Write() system calls:"     },
+      { "read_bytes: ",             "Bytes rcvd from storage:"  },
+      { "write_bytes: ",            "Bytes sent to storage:"    },
+      { "cancelled_write_bytes: ",  "Cancelled write bytes:"    },
+    };
+    int i;
+    for(i=0; i<sizeof(aTrans)/sizeof(aTrans[0]); i++){
+      int n = (int)strlen(aTrans[i].zPattern);
+      if( strncmp(aTrans[i].zPattern, z, n)==0 ){
+        fprintf(out, "-- %-28s %s", aTrans[i].zDesc, &z[n]);
+        break;
+      }
+    }
+  }
+  fclose(in);
+}   
+#endif
+
+/*
+** Return the value of a hexadecimal digit.  Return -1 if the input
+** is not a hex digit.
+*/
+static int hexDigitValue(char c){
+  if( c>='0' && c<='9' ) return c - '0';
+  if( c>='a' && c<='f' ) return c - 'a' + 10;
+  if( c>='A' && c<='F' ) return c - 'A' + 10;
+  return -1;
+}
+
+/*
+** Interpret zArg as an integer value, possibly with suffixes.
+*/
+static int integerValue(const char *zArg){
+  sqlite3_int64 v = 0;
+  static const struct { char *zSuffix; int iMult; } aMult[] = {
+    { "KiB", 1024 },
+    { "MiB", 1024*1024 },
+    { "GiB", 1024*1024*1024 },
+    { "KB",  1000 },
+    { "MB",  1000000 },
+    { "GB",  1000000000 },
+    { "K",   1000 },
+    { "M",   1000000 },
+    { "G",   1000000000 },
+  };
+  int i;
+  int isNeg = 0;
+  if( zArg[0]=='-' ){
+    isNeg = 1;
+    zArg++;
+  }else if( zArg[0]=='+' ){
+    zArg++;
+  }
+  if( zArg[0]=='0' && zArg[1]=='x' ){
+    int x;
+    zArg += 2;
+    while( (x = hexDigitValue(zArg[0]))>=0 ){
+      v = (v<<4) + x;
+      zArg++;
+    }
+  }else{
+    while( isdigit(zArg[0]) ){
+      v = v*10 + zArg[0] - '0';
+      zArg++;
+    }
+  }
+  for(i=0; i<sizeof(aMult)/sizeof(aMult[0]); i++){
+    if( sqlite3_stricmp(aMult[i].zSuffix, zArg)==0 ){
+      v *= aMult[i].iMult;
+      break;
+    }
+  }
+  if( v>0x7fffffff ){
+    printf("ERROR: parameter too large - max 2147483648\n");
+    exit(1);
+  }
+  return (int)(isNeg? -v : v);
+}
+
+
+int main(int argc, char **argv){
+  const char *zCmd = 0;
+  int i;
+  int bAutovac = 0;
+  int showStats = 0;
+  const char *zDbName = "./startup.db";
+  int nHeap = 0;
+  int mnHeap = 0;
+
+  for(i=1; i<argc; i++){
+    const char *z = argv[i];
+    if( z[0]!='-' ){
+      if( zCmd ){
+        usage(argv[0]);
+      }
+      zCmd = z;
+      continue;
+    }
+    if( z[1]=='-' ) z++;
+    if( strcmp(z, "-autovacuum")==0 ){
+      bAutovac = 1;
+    }else
+    if( strcmp(z, "-dbname")==0 ){
+      if( i==argc-1 ){
+        printf("ERROR: missing argument on \"%s\"\n", argv[0]);
+        exit(1);
+      }
+      zDbName = argv[++i];
+    }else
+    if( strcmp(z,"-heap")==0 ){
+      if( i>=argc-2 ){
+        printf("ERROR: missing arguments on %s\n", argv[i]);
+        exit(1);
+      }
+      nHeap = integerValue(argv[i+1]);
+      mnHeap = integerValue(argv[i+2]);
+      i += 2;
+    }else
+    if( strcmp(z,"-stats")==0 ){
+       showStats = 1;
+    }else
+    {
+      printf("ERROR: unknown option \"%s\"\n", argv[i]);
+      usage(argv[0]);
+    }
+  }
+  if( zCmd==0 ){
+    printf("ERROR: no COMMAND specified\n");
+    usage(argv[0]);
+  }
+  if( strcmp(zCmd, "run")==0 ){
+    sqlite3 *db;
+    int rc;
+    char *zErr = 0;
+    void *pHeap = 0;
+    if( nHeap>0 ){
+      pHeap = malloc( nHeap );
+      if( pHeap==0 ){
+        printf("ERROR: cannot allocate %d-byte heap\n", nHeap);
+        exit(1);
+      }
+      rc = sqlite3_config(SQLITE_CONFIG_HEAP, pHeap, nHeap, mnHeap);
+      if( rc ){
+        printf("ERROR: heap configuration failed: %d\n", rc);
+        exit(1);
+      }
+    }
+    rc = sqlite3_open(zDbName, &db);
+    if( rc ){
+      printf("SQLite error: %s\n", sqlite3_errmsg(db));
+    }else{
+      sqlite3_exec(db, "PRAGMA synchronous", 0, 0, &zErr);
+    }
+    if( zErr ){
+      printf("ERROR: %s\n", zErr);
+      sqlite3_free(zErr);
+    }
+    if( showStats ){
+      int iCur, iHi;
+      sqlite3_db_status(db, SQLITE_DBSTATUS_LOOKASIDE_USED, &iCur, &iHi, 0);
+      printf("-- Lookaside Slots Used:        %d (max %d)\n", iCur,iHi);
+      sqlite3_db_status(db, SQLITE_DBSTATUS_LOOKASIDE_HIT, &iCur, &iHi, 0);
+      printf("-- Successful lookasides:       %d\n", iHi);
+      sqlite3_db_status(db, SQLITE_DBSTATUS_LOOKASIDE_MISS_SIZE, &iCur,&iHi,0);
+      printf("-- Lookaside size faults:       %d\n", iHi);
+      sqlite3_db_status(db, SQLITE_DBSTATUS_LOOKASIDE_MISS_FULL, &iCur,&iHi,0);
+      printf("-- Lookaside OOM faults:        %d\n", iHi);
+      sqlite3_db_status(db, SQLITE_DBSTATUS_CACHE_USED, &iCur, &iHi, 0);
+      printf("-- Pager Heap Usage:            %d bytes\n", iCur);
+      sqlite3_db_status(db, SQLITE_DBSTATUS_CACHE_HIT, &iCur, &iHi, 1);
+      printf("-- Page cache hits:             %d\n", iCur);
+      sqlite3_db_status(db, SQLITE_DBSTATUS_CACHE_MISS, &iCur, &iHi, 1);
+      printf("-- Page cache misses:           %d\n", iCur);
+      sqlite3_db_status(db, SQLITE_DBSTATUS_CACHE_WRITE, &iCur, &iHi, 1);
+      printf("-- Page cache writes:           %d\n", iCur); 
+      sqlite3_db_status(db, SQLITE_DBSTATUS_SCHEMA_USED, &iCur, &iHi, 0);
+      printf("-- Schema Heap Usage:           %d bytes\n", iCur); 
+      sqlite3_db_status(db, SQLITE_DBSTATUS_STMT_USED, &iCur, &iHi, 0);
+      printf("-- Statement Heap Usage:        %d bytes\n", iCur); 
+    }
+    sqlite3_close(db);
+    free(pHeap);
+    /* Global memory usage statistics printed after the database connection
+    ** has closed.  Memory usage should be zero at this point. */
+    if( showStats ){
+      int iCur, iHi;
+      sqlite3_status(SQLITE_STATUS_MEMORY_USED, &iCur, &iHi, 0);
+      printf("-- Memory Used (bytes):         %d (max %d)\n", iCur,iHi);
+      sqlite3_status(SQLITE_STATUS_MALLOC_COUNT, &iCur, &iHi, 0);
+      printf("-- Outstanding Allocations:     %d (max %d)\n", iCur,iHi);
+      sqlite3_status(SQLITE_STATUS_PAGECACHE_OVERFLOW, &iCur, &iHi, 0);
+      printf("-- Pcache Overflow Bytes:       %d (max %d)\n", iCur,iHi);
+      sqlite3_status(SQLITE_STATUS_MALLOC_SIZE, &iCur, &iHi, 0);
+      printf("-- Largest Allocation:          %d bytes\n",iHi);
+      sqlite3_status(SQLITE_STATUS_PAGECACHE_SIZE, &iCur, &iHi, 0);
+      printf("-- Largest Pcache Allocation:   %d bytes\n",iHi);
+#ifdef __linux__
+      displayLinuxIoStats(stdout);
+#endif
+    }
+    return 0;
+  }
+  if( strcmp(zCmd, "init")==0 ){
+    sqlite3 *db;
+    char *zAux;
+    char *zErr = 0;
+    int rc;
+    unlink(zDbName);
+    zAux = sqlite3_mprintf("%s-journal", zDbName);
+    unlink(zAux);
+    sqlite3_free(zAux);
+    zAux = sqlite3_mprintf("%s-wal", zDbName);
+    unlink(zAux);
+    sqlite3_free(zAux);
+    rc = sqlite3_open(zDbName, &db);
+    if( rc ){
+      printf("SQLite error: %s\n", sqlite3_errmsg(db));
+    }else{
+      sqlite3_exec(db, "BEGIN", 0, 0, 0);
+      sqlite3_exec(db, zTestSchema, 0, 0, &zErr);
+      sqlite3_exec(db, "COMMIT", 0, 0, 0);
+    }
+    if( zErr ){
+      printf("ERROR: %s\n", zErr);
+      sqlite3_free(zErr);
+    }
+    sqlite3_close(db);
+    return 0;
+
+  }
+}
diff --git a/test/stat.test b/test/stat.test
new file mode 100644
index 0000000000000000000000000000000000000000..4705844cec198e15e38b27b6667b8a7eacc49739
--- /dev/null
+++ b/test/stat.test
@@ -0,0 +1,328 @@
+# 2010 July 09
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the SELECT statement.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix stat
+
+ifcapable !vtab||!compound {
+  finish_test
+  return
+}
+
+# This module uses hard-coded results that depend on exact measurements of
+# pages sizes at the byte level, and hence will not work if the reserved_bytes
+# value is nonzero.
+if {[nonzero_reserved_bytes]} {finish_test; return;}
+
+set ::asc 1
+proc a_string {n} { string range [string repeat [incr ::asc]. $n] 1 $n }
+db func a_string a_string
+
+register_dbstat_vtab db
+do_execsql_test stat-0.0 {
+  PRAGMA table_info(dbstat);
+} {/0 name TEXT .* 1 path TEXT .* 9 pgsize INTEGER/}
+
+# Attempts to drop an eponymous virtual table are a no-op.
+do_catchsql_test stat-0.1a {
+  DROP TABLE dbstat;
+} {1 {table dbstat may not be dropped}}
+do_execsql_test stat-0.1b {
+  PRAGMA table_info=dbstat;
+} {/0 name TEXT .* 1 path TEXT .* 9 pgsize INTEGER/}
+
+db close
+forcedelete test.db
+sqlite3 db test.db
+db func a_string a_string
+register_dbstat_vtab db
+do_execsql_test stat-0.2 {
+  PRAGMA auto_vacuum = OFF;
+  CREATE VIRTUAL TABLE temp.stat USING dbstat;
+  SELECT * FROM stat;
+} {}
+
+
+if {[wal_is_capable]} {
+  do_execsql_test stat-0.1 {
+    PRAGMA journal_mode = WAL;
+    PRAGMA journal_mode = delete;
+    SELECT name, path, pageno, pagetype, ncell, payload, unused, mx_payload
+      FROM stat;
+  } {wal delete sqlite_schema / 1 leaf 0 0 916 0}
+}
+
+do_test stat-1.0 {
+  execsql {
+    CREATE TABLE t1(a, b);
+    CREATE INDEX i1 ON t1(b);
+    INSERT INTO t1(rowid, a, b) VALUES(2, 2, 3);
+    INSERT INTO t1(rowid, a, b) VALUES(3, 4, 5);
+  }
+} {}
+do_test stat-1.1 {
+  execsql {
+    SELECT name, path, pageno, pagetype, ncell, payload, unused, mx_payload
+      FROM stat WHERE name = 't1';
+  }
+} {t1 / 2 leaf 2 10 998 5}
+do_test stat-1.2 {
+  execsql {
+    SELECT name, path, pageno, pagetype, ncell, payload, unused, mx_payload
+      FROM stat WHERE name = 'i1';
+  }
+} {i1 / 3 leaf 2 10 1000 5}
+do_test stat-1.3 {
+  execsql {
+    SELECT name, path, pageno, pagetype, ncell, payload, unused, mx_payload
+      FROM stat WHERE name = 'sqlite_schema';
+  }
+} {sqlite_schema / 1 leaf 2 77 831 40}
+do_test stat-1.4 {
+  execsql {
+    DROP TABLE t1;
+  }
+} {}
+
+do_execsql_test stat-2.1 {
+  CREATE TABLE t3(a PRIMARY KEY, b);
+  INSERT INTO t3(rowid, a, b) VALUES(2, a_string(111), a_string(222));
+  INSERT INTO t3 SELECT a_string(110+rowid), a_string(221+rowid) FROM t3
+   ORDER BY rowid;
+  INSERT INTO t3 SELECT a_string(110+rowid), a_string(221+rowid) FROM t3
+   ORDER BY rowid;
+  INSERT INTO t3 SELECT a_string(110+rowid), a_string(221+rowid) FROM t3
+   ORDER BY rowid;
+  INSERT INTO t3 SELECT a_string(110+rowid), a_string(221+rowid) FROM t3
+   ORDER BY rowid;
+  INSERT INTO t3 SELECT a_string(110+rowid), a_string(221+rowid) FROM t3
+   ORDER BY rowid;
+  SELECT name, path, pageno, pagetype, ncell, payload, unused, mx_payload
+    FROM stat WHERE name != 'sqlite_schema' ORDER BY name;
+} [list \
+  sqlite_autoindex_t3_1 / 3 internal 3 368 623 125       \
+  sqlite_autoindex_t3_1 /000/ 8 leaf 8 946 46 123        \
+  sqlite_autoindex_t3_1 /001/ 9 leaf 8 988 2 131         \
+  sqlite_autoindex_t3_1 /002/ 15 leaf 7 857 137 132      \
+  sqlite_autoindex_t3_1 /003/ 20 leaf 6 739 257 129      \
+  t3 / 2 internal 15 0 907 0                             \
+  t3 /000/ 4 leaf 2 678 328 340                          \
+  t3 /001/ 5 leaf 2 682 324 342                          \
+  t3 /002/ 6 leaf 2 682 324 342                          \
+  t3 /003/ 7 leaf 2 690 316 346                          \
+  t3 /004/ 10 leaf 2 682 324 342                         \
+  t3 /005/ 11 leaf 2 690 316 346                         \
+  t3 /006/ 12 leaf 2 698 308 350                         \
+  t3 /007/ 13 leaf 2 706 300 354                         \
+  t3 /008/ 14 leaf 2 682 324 342                         \
+  t3 /009/ 16 leaf 2 690 316 346                         \
+  t3 /00a/ 17 leaf 2 698 308 350                         \
+  t3 /00b/ 18 leaf 2 706 300 354                         \
+  t3 /00c/ 19 leaf 2 714 292 358                         \
+  t3 /00d/ 21 leaf 2 722 284 362                         \
+  t3 /00e/ 22 leaf 2 730 276 366                         \
+  t3 /00f/ 23 leaf 2 738 268 370                         \
+]
+
+do_execsql_test stat-2.1agg {
+  SELECT * FROM dbstat WHERE aggregate=TRUE ORDER BY name;
+} [list \
+  sqlite_autoindex_t3_1 {}  5 {} 32  3898 1065 132 {}  5120 \
+  sqlite_schema         {}  1 {}  2    84  824  49 {}  1024 \
+  t3                    {} 17 {} 47 11188 5815 370 {} 17408 \
+]
+
+# With every index entry overflowing, make sure no pages are missed 
+# (other than the locking page which is 64 in this test build.)
+#
+do_execsql_test stat-2.2 {
+  UPDATE t3 SET a=a||hex(randomblob(700));
+  VACUUM;
+  SELECT pageno FROM stat EXCEPT SELECT pageno-1 FROM stat;
+} {64 136}
+
+do_execsql_test stat-2.3 { DROP TABLE t3; VACUUM; } {}
+
+do_execsql_test stat-3.1 {
+  CREATE TABLE t4(x);
+  CREATE INDEX i4 ON t4(x);
+  INSERT INTO t4(rowid, x) VALUES(2, a_string(7777));
+  SELECT name, path, pageno, pagetype, ncell, payload, unused, mx_payload
+    FROM stat WHERE name != 'sqlite_schema' ORDER BY name;
+} [list \
+  i4 / 3 leaf 1 103 905 7782                 \
+  i4 /000+000000 4 overflow 0 1020 0 0       \
+  i4 /000+000001 5 overflow 0 1020 0 0      \
+  i4 /000+000002 6 overflow 0 1020 0 0      \
+  i4 /000+000003 7 overflow 0 1020 0 0      \
+  i4 /000+000004 8 overflow 0 1020 0 0      \
+  i4 /000+000005 9 overflow 0 1020 0 0      \
+  i4 /000+000006 10 overflow 0 1020 0 0      \
+  i4 /000+000007 11 overflow 0 539 481 0     \
+  t4 / 2 leaf 1 640 367 7780                 \
+  t4 /000+000000 12 overflow 0 1020 0 0      \
+  t4 /000+000001 13 overflow 0 1020 0 0      \
+  t4 /000+000002 14 overflow 0 1020 0 0      \
+  t4 /000+000003 15 overflow 0 1020 0 0      \
+  t4 /000+000004 16 overflow 0 1020 0 0      \
+  t4 /000+000005 17 overflow 0 1020 0 0      \
+  t4 /000+000006 18 overflow 0 1020 0 0      \
+]
+
+do_execsql_test stat-3.2 {
+  SELECT *, '|' FROM dbstat WHERE aggregate=TRUE ORDER BY name;
+} [list \
+  i4            {} 9 {} 1 7782 1386 7782 {} 9216 | \
+  sqlite_schema {} 1 {} 2   74  834   40 {} 1024 | \
+  t4            {} 8 {} 1 7780  367 7780 {} 8192 | \
+]
+
+
+do_execsql_test stat-4.1 {
+  CREATE TABLE t5(x);
+  CREATE INDEX i5 ON t5(x);
+  SELECT name, path, pageno, pagetype, ncell, payload, unused, mx_payload
+    FROM stat WHERE name = 't5' OR name = 'i5';
+} [list  \
+  i5 / 20 leaf 0 0 1016 0 \
+  t5 / 19 leaf 0 0 1016 0 \
+]
+
+db close
+forcedelete test.db
+sqlite3 db test.db
+register_dbstat_vtab db
+do_execsql_test stat-5.1 {
+  PRAGMA auto_vacuum = OFF;
+  CREATE TABLE tx(y);
+  ATTACH ':memory:' AS aux1;
+  CREATE VIRTUAL TABLE temp.stat USING dbstat(aux1);
+  CREATE TABLE aux1.t1(x);
+  INSERT INTO t1 VALUES(zeroblob(1513));
+  INSERT INTO t1 VALUES(zeroblob(1514));
+  SELECT name, path, pageno, pagetype, ncell, payload, unused, mx_payload
+    FROM stat WHERE name = 't1';
+} [list \
+  t1 / 2 leaf 2 993 5 1517                \
+  t1 /000+000000 3 overflow 0 1020 0 0    \
+  t1 /001+000000 4 overflow 0 1020 0 0    \
+]
+
+do_execsql_test stat-5.20 {
+  SELECT name, quote(path), pageno, quote(pagetype), ncell, payload,
+         unused, mx_payload, '|' FROM dbstat('main',1);
+} {sqlite_schema NULL 1 NULL 1 34 878 34 | tx NULL 1 NULL 0 0 1016 0 |}
+do_execsql_test stat-5.21 {
+  SELECT name, quote(path), pageno, quote(pagetype), ncell, payload,
+         unused, mx_payload, '|' FROM dbstat('aux1',1);
+} {sqlite_schema NULL 1 NULL 1 34 878 34 | t1 NULL 3 NULL 2 3033 5 1517 |}
+
+
+do_catchsql_test stat-6.1 {
+  CREATE VIRTUAL TABLE temp.s2 USING dbstat(mainx);
+} {1 {no such database: mainx}}
+
+#-------------------------------------------------------------------------
+# Test that the argument passed to the dbstat constructor is dequoted
+# before it is matched against the names of attached databases.
+#
+forcedelete test.db2
+do_execsql_test 7.1 {
+  ATTACH 'test.db2' AS '123';
+  PRAGMA "123".auto_vacuum = OFF;
+  CREATE TABLE "123".x1(a, b);
+  INSERT INTO x1 VALUES(1, 2);
+}
+
+do_execsql_test 7.1.1 {
+  SELECT * FROM dbstat('123');
+} {
+  sqlite_schema / 1 leaf 1 37 875 37 0 1024 
+  x1 / 2 leaf 1 4 1008 4 1024 1024
+}
+do_execsql_test 7.1.2 {
+  SELECT * FROM dbstat(123);
+} {
+  sqlite_schema / 1 leaf 1 37 875 37 0 1024 
+  x1 / 2 leaf 1 4 1008 4 1024 1024
+}
+do_execsql_test 7.1.3 {
+  CREATE VIRTUAL TABLE x2 USING dbstat('123');
+  SELECT * FROM x2;
+} {
+  sqlite_schema / 1 leaf 1 37 875 37 0 1024 
+  x1 / 2 leaf 1 4 1008 4 1024 1024
+}
+do_execsql_test 7.1.4 {
+  CREATE VIRTUAL TABLE x3 USING dbstat(123);
+  SELECT * FROM x3;
+} {
+  sqlite_schema / 1 leaf 1 37 875 37 0 1024 
+  x1 / 2 leaf 1 4 1008 4 1024 1024
+}
+
+do_execsql_test 7.2 {
+  DETACH 123;
+  DROP TABLE x2;
+  DROP TABLE x3;
+  ATTACH 'test.db2' AS '123corp';
+}
+do_execsql_test 7.2.1 {
+  SELECT * FROM dbstat('123corp');
+} {
+  sqlite_schema / 1 leaf 1 37 875 37 0 1024 
+  x1 / 2 leaf 1 4 1008 4 1024 1024
+}
+do_catchsql_test 7.2.2 {
+  SELECT * FROM dbstat(123corp);
+} {1 {unrecognized token: "123corp"}}
+do_execsql_test 7.2.3 {
+  CREATE VIRTUAL TABLE x2 USING dbstat('123corp');
+  SELECT * FROM x2;
+} {
+  sqlite_schema / 1 leaf 1 37 875 37 0 1024 
+  x1 / 2 leaf 1 4 1008 4 1024 1024
+}
+do_catchsql_test 7.2.4 {
+  CREATE VIRTUAL TABLE x3 USING dbstat(123corp);
+  SELECT * FROM x3;
+} {1 {unrecognized token: "123corp"}}
+
+
+do_execsql_test 8.1 {
+  CREATE VIRTUAL TABLE st4 USING dbstat;
+}
+do_execsql_test 8.2 {
+  SELECT * FROM st4 WHERE st4.aggregate = NULL;
+}
+do_execsql_test 8.3 {
+  SELECT aggregate=1 FROM st4 WHERE aggregate = 5
+}
+do_execsql_test 8.4 {
+  SELECT * FROM st4 WHERE name = NULL;
+} {}
+do_execsql_test 8.5 {
+  SELECT * FROM st4 WHERE schema = NULL;
+} {}
+
+#-------------------------------------------------------------------------
+reset_db
+breakpoint
+do_catchsql_test 9.1 {
+  CREATE TABLE dbstat(x, y);
+  DROP TABLE nosuchdb.dbstat;
+} {/1 {(no such table: nosuchdb.dbstat|table dbstat may not be dropped)}/}
+
+finish_test
diff --git a/test/statfault.test b/test/statfault.test
new file mode 100644
index 0000000000000000000000000000000000000000..19e0a6787416947db81318793346334ccec2774f
--- /dev/null
+++ b/test/statfault.test
@@ -0,0 +1,54 @@
+# 2015 April 28
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+set testprefix statfault
+
+ifcapable !vtab||!compound {
+  finish_test
+  return
+}
+
+register_dbstat_vtab db
+do_execsql_test statfault-1 {
+  CREATE TABLE t1(a, b UNIQUE);
+  INSERT INTO t1 VALUES(1, randomblob(500));
+  INSERT INTO t1 VALUES(randomblob(500), 1);
+  INSERT INTO t1 VALUES(2, randomblob(250));
+  INSERT INTO t1 VALUES(randomblob(250), 2);
+  CREATE VIRTUAL TABLE sss USING dbstat;
+} {}
+faultsim_save_and_close
+
+do_faultsim_test 1 -faults * -prep {
+  faultsim_restore_and_reopen
+  register_dbstat_vtab db
+  execsql { SELECT 1 FROM sqlite_master LIMIT 1 }
+} -body {
+  execsql { SELECT count(*) FROM sss }
+} -test {
+  faultsim_test_result {0 8} 
+}
+
+do_faultsim_test 2 -faults * -prep {
+  faultsim_restore_and_reopen
+  register_dbstat_vtab db
+  execsql { SELECT 1 FROM sqlite_master LIMIT 1 }
+} -body {
+  db eval { SELECT * FROM sss } { db eval { SELECT randomblob(5000) } }
+} -test {
+  faultsim_test_result {0 {}} 
+}
+
+finish_test
diff --git a/test/stmt.test b/test/stmt.test
new file mode 100644
index 0000000000000000000000000000000000000000..138ce19860e8ddab7342bcfc3b81f0eb66c9e819
--- /dev/null
+++ b/test/stmt.test
@@ -0,0 +1,104 @@
+# 2010 February 18
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# The tests in this file check that SQLite uses (or does not use) a
+# statement journal for various SQL statements.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+if {[atomic_batch_write test.db]} {
+  finish_test
+  return
+}
+
+do_test stmt-1.1 {
+  execsql { CREATE TABLE t1(a integer primary key, b INTEGER NOT NULL) }
+} {}
+
+# The following tests verify the method used for the tests in this file -
+# that if a statement journal is required by a statement it is opened and
+# remains open until the current transaction is committed or rolled back.
+#
+# This only work if SQLITE_TEMP_STORE!=3
+#
+if {$::TEMP_STORE==3} {
+  finish_test
+  return
+}
+do_test stmt-1.2 {
+  set sqlite_open_file_count
+} {1}
+do_test stmt-1.3 {
+  execsql {
+    PRAGMA temp_store = file;
+    BEGIN;
+      INSERT INTO t1 VALUES(1, 1);
+  }
+  set sqlite_open_file_count
+} {2}
+do_test stmt-1.4 {
+  execsql {
+    INSERT INTO t1 SELECT a+1, b+1 FROM t1;
+  }
+  set sqlite_open_file_count
+  # 2016-03-04: statement-journal open deferred
+} {2}
+do_test stmt-1.5 {
+  execsql COMMIT
+  set sqlite_open_file_count
+} {1}
+do_test stmt-1.6.1 {
+  execsql {
+    BEGIN;
+      INSERT INTO t1 SELECT a+2, b+2 FROM t1;
+  }
+  set sqlite_open_file_count
+} {2}
+do_test stmt-1.6.2 {
+  execsql { INSERT INTO t1 SELECT a+4, b+4 FROM t1 }
+  set sqlite_open_file_count
+  # 2016-03-04: statement-journal open deferred
+} {2}
+do_test stmt-1.7 {
+  execsql COMMIT
+  set sqlite_open_file_count
+} {1}
+
+
+proc filecount {testname sql expected} {
+  uplevel [list do_test $testname [subst -nocommand {
+    execsql BEGIN
+    execsql { $sql }
+    set ret [set sqlite_open_file_count]
+    execsql ROLLBACK
+    set ret
+  }] $expected]
+}
+
+filecount stmt-2.1 { INSERT INTO t1 VALUES(9, 9)  } 2
+filecount stmt-2.2 { REPLACE INTO t1 VALUES(9, 9) } 2
+filecount stmt-2.3 { INSERT INTO t1 SELECT 9, 9   } 2
+filecount stmt-2.4 { 
+    INSERT INTO t1 SELECT 9, 9;
+    INSERT INTO t1 SELECT 10, 10;
+} 2
+
+do_test stmt-2.5 {
+  execsql { CREATE INDEX i1 ON t1(b) }
+} {}
+filecount stmt-2.6 { 
+  REPLACE INTO t1 VALUES(5, 5);
+  REPLACE INTO t1 VALUES(5, 5); 
+} 2
+
+finish_test
diff --git a/test/stmtrand.test b/test/stmtrand.test
new file mode 100644
index 0000000000000000000000000000000000000000..e2f6935b8597251199cf209a70c6d4cf49b84760
--- /dev/null
+++ b/test/stmtrand.test
@@ -0,0 +1,48 @@
+# 2024-05-24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Verify that the stmtrand() extension function works.
+#
+# Stmtrand() is a pseudo-random number generator designed for testing.
+# it has the property that it returns the same sequence of pseudo-random
+# numbers for each SQL statement invocation.  This makes it suitable for
+# testing because the results are reproducible.
+#
+# The optional argument is the seed for the PRNG.  The seed is only used
+# on the first invocation.  If the argument is omitted, a seed of 0 is
+# used.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix stmtrand
+
+load_static_extension db stmtrand
+
+do_execsql_test 1.1 {
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<30)
+  SELECT stmtrand()%10 FROM c
+} {4 1 8 3 6 1 4 9 2 1 2 1 0 1 8 1 4 7 6 1 8 7 0 3 0 9 4 5 9 9}
+do_execsql_test 1.2 {
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<30)
+  SELECT stmtrand(0)%10 FROM c
+} {4 1 8 3 6 1 4 9 2 1 2 1 0 1 8 1 4 7 6 1 8 7 0 3 0 9 4 5 9 9}
+do_execsql_test 1.3 {
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<30)
+  SELECT stmtrand(1)%10 FROM c
+} {3 8 9 4 7 2 3 8 5 2 7 0 3 0 7 2 5 6 1 8 5 6 7 8 7 2 9 6 8 0}
+do_execsql_test 1.4 {
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<30)
+  SELECT stmtrand(x)%10 FROM c
+} {3 8 9 4 7 2 3 8 5 2 7 0 3 0 7 2 5 6 1 8 5 6 7 8 7 2 9 6 8 0}
+
+
+finish_test
diff --git a/test/stmtvtab1.test b/test/stmtvtab1.test
new file mode 100644
index 0000000000000000000000000000000000000000..e8a79fdacdf7e5c9c7bbad893b31996f4d88ca20
--- /dev/null
+++ b/test/stmtvtab1.test
@@ -0,0 +1,82 @@
+# 2017-06-29
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Testing of the STMT virtual table.
+#
+# This also validates the SQLITE_STMTSTATUS_REPREPARE and
+# SQLITE_STMTSTATUS_RUN values for sqlite3_stmt_status().
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !stmtvtab {
+  finish_test
+  return
+}
+
+db cache flush
+db cache size 20
+unset -nocomplain x y z
+set x giraffe
+set y mango
+set z alabama
+do_execsql_test stmtvtab1-100 {
+  CREATE TABLE t1(a,b,c);
+  INSERT INTO t1 VALUES($a,$b,$c);
+  CREATE INDEX t1a ON t1(a);
+  SELECT run, sql FROM sqlite_stmt ORDER BY 1;
+} {1 {SELECT run, sql FROM sqlite_stmt ORDER BY 1;} 1 {CREATE INDEX t1a ON t1(a);} 1 {INSERT INTO t1 VALUES($a,$b,$c);} 1 {CREATE TABLE t1(a,b,c);}}
+set x neon
+set y event
+set z future
+do_execsql_test stmtvtab1-110 {
+  INSERT INTO t1 VALUES($a,$b,$c);
+  SELECT reprep,run,SQL FROM sqlite_stmt WHERE sql LIKE '%INSERT%' AND NOT busy;
+} {1 2 {INSERT INTO t1 VALUES($a,$b,$c);}}
+set x network
+set y fit
+set z metal
+do_execsql_test stmtvtab1-120 {
+  INSERT INTO t1 VALUES($a,$b,$c);
+  SELECT reprep,run,SQL FROM sqlite_stmt WHERE sql LIKE '%INSERT%' AND NOT busy;
+} {1 3 {INSERT INTO t1 VALUES($a,$b,$c);}}
+set x history
+set y detail
+set z grace
+do_execsql_test stmtvtab1-130 {
+  CREATE INDEX t1b ON t1(b);
+  INSERT INTO t1 VALUES($a,$b,$c);
+  SELECT reprep,run,SQL FROM sqlite_stmt WHERE sql LIKE '%INSERT%' AND NOT busy;
+} {2 4 {INSERT INTO t1 VALUES($a,$b,$c);}}
+
+# All statements are still in cache
+#
+do_execsql_test stmtvtab1-140 {
+  SELECT count(*) FROM sqlite_stmt WHERE NOT busy;
+} {6}
+
+# None of the prepared statements should use more than a couple thousand
+# bytes of memory
+#
+#db eval {SELECT mem, sql FROM sqlite_stmt} {puts [format {%5d %s} $mem $sql]}
+do_execsql_test stmtvtab1-150 {
+  SELECT count(*) FROM sqlite_stmt WHERE mem>5000;
+} {0}
+
+# Flushing the cache clears all of the prepared statements.
+#
+db cache flush
+do_execsql_test stmtvtab1-160 {
+  SELECT * FROM sqlite_stmt WHERE NOT busy;
+} {}
+
+finish_test
diff --git a/test/strict1.test b/test/strict1.test
new file mode 100644
index 0000000000000000000000000000000000000000..fc6438843f4715beaeef4de21e4adf52a1461d08
--- /dev/null
+++ b/test/strict1.test
@@ -0,0 +1,165 @@
+# 2021-08-18
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing STRICT tables.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix strict1
+
+# STRICT tables have on a limited number of allowed datatypes.
+#
+do_catchsql_test strict1-1.1 {
+  CREATE TABLE t1(a) STRICT;
+} {1 {missing datatype for t1.a}}
+do_catchsql_test strict1-1.2 {
+  CREATE TABLE t1(a PRIMARY KEY) STRICT, WITHOUT ROWID;
+} {1 {missing datatype for t1.a}}
+do_catchsql_test strict1-1.3 {
+  CREATE TABLE t1(a PRIMARY KEY) WITHOUT ROWID, STRICT;
+} {1 {missing datatype for t1.a}}
+do_catchsql_test strict1-1.4 {
+  CREATE TABLE t1(a BANJO PRIMARY KEY) WITHOUT ROWID, STRICT;
+} {1 {unknown datatype for t1.a: "BANJO"}}
+do_catchsql_test strict1-1.5 {
+  CREATE TABLE t1(a TEXT PRIMARY KEY, b INT, c INTEGER, d REAL, e BLOB, f DATE) strict;
+} {1 {unknown datatype for t1.f: "DATE"}}
+do_catchsql_test strict1-1.6 {
+  CREATE TABLE t1(a TEXT PRIMARY KEY, b INT, c INTEGER, d REAL, e BLOB, f TEXT(50)) WITHOUT ROWID, STRICT;
+} {1 {unknown datatype for t1.f: "TEXT(50)"}}
+
+do_execsql_test strict1-2.0 {
+  CREATE TABLE t1(
+    a INT,
+    b INTEGER,
+    c BLOB,
+    d TEXT,
+    e REAL
+  ) STRICT;
+} {}
+ifcapable vtab {
+  do_execsql_test strict1-2.0a {
+    SELECT strict FROM pragma_table_list('t1');
+  } {1}
+}
+do_catchsql_test strict1-2.1 {
+  INSERT INTO t1(a) VALUES('xyz');
+} {1 {cannot store TEXT value in INT column t1.a}}
+do_catchsql_test strict1-2.2 {
+  INSERT INTO t1(b) VALUES('xyz');
+} {1 {cannot store TEXT value in INTEGER column t1.b}}
+do_catchsql_test strict1-2.3 {
+  INSERT INTO t1(c) VALUES('xyz');
+} {1 {cannot store TEXT value in BLOB column t1.c}}
+do_catchsql_test strict1-2.4 {
+  INSERT INTO t1(d) VALUES(x'3142536475');
+} {1 {cannot store BLOB value in TEXT column t1.d}}
+do_catchsql_test strict1-2.5 {
+  INSERT INTO t1(e) VALUES('xyz');
+} {1 {cannot store TEXT value in REAL column t1.e}}
+
+
+do_execsql_test strict1-3.1 {
+  INSERT INTO t1(a, b) VALUES(1,2),('3','4'),(5.0, 6.0),(null,null);
+  SELECT a, b, '|' FROM t1;
+} {1 2 | 3 4 | 5 6 | {} {} |}
+do_catchsql_test strict1-3.2 {
+  INSERT INTO t1(a) VALUES(1.2);
+} {1 {cannot store REAL value in INT column t1.a}}
+do_catchsql_test strict1-3.3 {
+  INSERT INTO t1(a) VALUES(x'313233');
+} {1 {cannot store BLOB value in INT column t1.a}}
+do_catchsql_test strict1-3.4 {
+  INSERT INTO t1(b) VALUES(1.2);
+} {1 {cannot store REAL value in INTEGER column t1.b}}
+do_catchsql_test strict1-3.5 {
+  INSERT INTO t1(b) VALUES(x'313233');
+} {1 {cannot store BLOB value in INTEGER column t1.b}}
+
+do_execsql_test strict1-4.1 {
+  DELETE FROM t1;
+  INSERT INTO t1(c) VALUES(x'313233'), (NULL);
+  SELECT typeof(c), c FROM t1;
+} {blob 123 null {}}
+do_catchsql_test strict1-4.2 {
+  INSERT INTO t1(c) VALUES('456');
+} {1 {cannot store TEXT value in BLOB column t1.c}}
+
+do_execsql_test strict1-5.1 {
+  DELETE FROM t1;
+  INSERT INTO t1(d) VALUES('xyz'),(4),(5.5),(NULL);
+  SELECT typeof(d), d FROM t1;
+} {text xyz text 4 text 5.5 null {}}
+do_catchsql_test strict1-5.2 {
+  INSERT INTO t1(d) VALUES(x'4567');
+} {1 {cannot store BLOB value in TEXT column t1.d}}
+
+do_execsql_test strict1-6.1 {
+  DELETE FROM t1;
+  INSERT INTO t1(e) VALUES(1),(2.5),('3'),('4.5'),(6.0),(NULL);
+  SELECT typeof(e), e FROM t1;
+} {real 1.0 real 2.5 real 3.0 real 4.5 real 6.0 null {}}
+do_catchsql_test strict1-6.2 {
+  INSERT INTO t1(e) VALUES('xyz');
+} {1 {cannot store TEXT value in REAL column t1.e}}
+do_catchsql_test strict1-6.3 {
+  INSERT INTO t1(e) VALUES(x'3456');
+} {1 {cannot store BLOB value in REAL column t1.e}}
+
+ifcapable altertable {
+  do_execsql_test strict1-7.1 {
+    DROP TABLE IF EXISTS t4;
+    CREATE TABLE t4(
+      a INT AS (b*2) VIRTUAL,
+      b INT AS (c*2) STORED,
+      c INT PRIMARY KEY
+    ) STRICT;
+    INSERT INTO t4(c) VALUES(1);
+    SELECT * FROM t4;
+  } {4 2 1}
+  do_catchsql_test strict1-7.2 {
+    ALTER TABLE t4 ADD COLUMN d VARCHAR;
+  } {1 {error in table t4 after add column: unknown datatype for t4.d: "VARCHAR"}}
+  do_catchsql_test strict1-7.3 {
+    ALTER TABLE t4 ADD COLUMN d;
+  } {1 {error in table t4 after add column: missing datatype for t4.d}}
+}
+
+# 2022-01-17 https://sqlite.org/forum/forumpost/fa012c77796d9399
+# 
+reset_db
+do_execsql_test strict1-8.1 {
+  CREATE TABLE csv_import_table (
+    "debit" TEXT,
+    "credit" TEXT
+  );
+  INSERT INTO csv_import_table VALUES ('', '250.00');
+  CREATE TABLE IF NOT EXISTS transactions (
+      debit REAL,
+      credit REAL,
+      amount REAL GENERATED ALWAYS AS (ifnull(credit, 0.0) - ifnull(debit, 0.0))
+  ) STRICT;
+  INSERT INTO transactions
+  SELECT
+      nullif(debit, '') AS debit,
+      nullif(credit, '') AS credit
+  FROM csv_import_table;
+  SELECT * FROM transactions;
+} {{} 250.0 250.0}
+do_execsql_test strict1-8.2 {
+  CREATE TABLE t1(x REAL, y REAL AS (x)) STRICT;
+  INSERT INTO t1 VALUES(5),(4611686018427387904);
+  SELECT *, '|' FROM t1;
+} {/5.0 5.0 4.6116\d*e\+18 4.6116\d+e\+18 |/}
+
+finish_test
diff --git a/test/strict2.test b/test/strict2.test
new file mode 100644
index 0000000000000000000000000000000000000000..be5952284de56265b876b3a0ec901cce49d20a20
--- /dev/null
+++ b/test/strict2.test
@@ -0,0 +1,158 @@
+# 2021-08-19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing STRICT tables.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix strict2
+
+# PRAGMA integrity_check on a STRICT table should verify that
+# all of the values are of the correct type.
+#
+do_execsql_test strict2-1.1 {
+  CREATE TABLE t1(
+    a INT,
+    b INTEGER,
+    c TEXT,
+    d REAL,
+    e BLOB
+  ) STRICT;
+  CREATE TABLE t1nn(
+    a INT NOT NULL,
+    b INTEGER NOT NULL,
+    c TEXT NOT NULL,
+    d REAL NOT NULL,
+    e BLOB NOT NULL
+  ) STRICT;
+  CREATE TABLE t2(a,b,c,d,e);
+  INSERT INTO t1(a,b,c,d,e) VALUES(1,1,'one',1.0,x'b1'),(2,2,'two',2.25,x'b2b2b2');
+  PRAGMA writable_schema=on;
+  UPDATE sqlite_schema SET rootpage=(SELECT rootpage FROM sqlite_schema WHERE name='t1');
+} {}
+db close
+sqlite3 db test.db
+do_execsql_test strict2-1.2 {
+  PRAGMA quick_check('t1');
+} {ok}
+do_execsql_test strict2-1.3 {
+  UPDATE t2 SET a=2.5 WHERE b=2;
+  PRAGMA quick_check('t1');
+} {{non-INT value in t1.a}}
+do_execsql_test strict2-1.4 {
+  UPDATE t2 SET a='xyz' WHERE b=2;
+  PRAGMA quick_check('t1');
+} {{non-INT value in t1.a}}
+do_execsql_test strict2-1.5 {
+  UPDATE t2 SET a=x'445566' WHERE b=2;
+  PRAGMA quick_check('t1');
+} {{non-INT value in t1.a}}
+do_execsql_test strict2-1.6 {
+  UPDATE t2 SET a=2.5 WHERE b=2;
+  PRAGMA quick_check('t1nn');
+} {{non-INT value in t1nn.a}}
+do_execsql_test strict2-1.7 {
+  UPDATE t2 SET a='xyz' WHERE b=2;
+  PRAGMA quick_check('t1nn');
+} {{non-INT value in t1nn.a}}
+do_execsql_test strict2-1.8 {
+  UPDATE t2 SET a=x'445566' WHERE b=2;
+  PRAGMA quick_check('t1nn');
+} {{non-INT value in t1nn.a}}
+
+do_execsql_test strict2-1.13 {
+  UPDATE t2 SET a=2 WHERE b=2;
+  UPDATE t2 SET b=2.5 WHERE a=2;
+  PRAGMA quick_check('t1');
+} {{non-INTEGER value in t1.b}}
+do_execsql_test strict2-1.14 {
+  UPDATE t2 SET b='two' WHERE a=2;
+  PRAGMA quick_check('t1');
+} {{non-INTEGER value in t1.b}}
+do_execsql_test strict2-1.15 {
+  UPDATE t2 SET b=x'b0b1b2b3b4' WHERE a=2;
+  PRAGMA quick_check('t1');
+} {{non-INTEGER value in t1.b}}
+do_execsql_test strict2-1.16 {
+  UPDATE t2 SET b=NULL WHERE a=2;
+  PRAGMA quick_check('t1');
+} {ok}
+do_execsql_test strict2-1.17 {
+  UPDATE t2 SET b=2.5 WHERE a=2;
+  PRAGMA quick_check('t1nn');
+} {{non-INTEGER value in t1nn.b}}
+do_execsql_test strict2-1.18 {
+  UPDATE t2 SET b=NULL WHERE a=2;
+  PRAGMA quick_check('t1nn');
+} {{NULL value in t1nn.b}}
+
+do_execsql_test strict2-1.23 {
+  UPDATE t2 SET b=2 WHERE a=2;
+  UPDATE t2 SET c=9 WHERE a=2;
+  PRAGMA quick_check('t1');
+} {{non-TEXT value in t1.c}}
+do_execsql_test strict2-1.24 {
+  UPDATE t2 SET c=9.5 WHERE a=2;
+  PRAGMA quick_check('t1');
+} {{non-TEXT value in t1.c}}
+do_execsql_test strict2-1.25 {
+  UPDATE t2 SET c=x'b0b1b2b3b4' WHERE a=2;
+  PRAGMA quick_check('t1');
+} {{non-TEXT value in t1.c}}
+
+do_execsql_test strict2-1.33 {
+  UPDATE t2 SET c='two' WHERE a=2;
+  UPDATE t2 SET d=9 WHERE a=2;
+  PRAGMA quick_check('t1');
+} {ok}
+do_execsql_test strict2-1.34 {
+  UPDATE t2 SET d='nine' WHERE a=2;
+  PRAGMA quick_check('t1');
+} {{non-REAL value in t1.d}}
+do_execsql_test strict2-1.35 {
+  UPDATE t2 SET d=x'b0b1b2b3b4' WHERE a=2;
+  PRAGMA quick_check('t1');
+} {{non-REAL value in t1.d}}
+
+do_execsql_test strict2-1.43 {
+  UPDATE t2 SET d=2.5 WHERE a=2;
+  UPDATE t2 SET e=9 WHERE a=2;
+  PRAGMA quick_check('t1');
+} {{non-BLOB value in t1.e}}
+do_execsql_test strict2-1.44 {
+  UPDATE t2 SET e=9.5 WHERE a=2;
+  PRAGMA quick_check('t1');
+} {{non-BLOB value in t1.e}}
+do_execsql_test strict2-1.45 {
+  UPDATE t2 SET e='hello' WHERE a=2;
+  PRAGMA quick_check('t1');
+} {{non-BLOB value in t1.e}}
+
+do_execsql_test strict2-2.0 {
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t2(a INT, b ANY) STRICT;
+  INSERT INTO t2(a,b) VALUES(1,2),(3,4.5),(5,'six'),(7,x'8888'),(9,NULL);
+  PRAGMA integrity_check(t2);
+} {ok}
+
+do_execsql_test strict2-3.0 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(id ANY PRIMARY KEY, x TEXT);
+  INSERT INTO t1 VALUES(1,2),('three','four'),(x'5555','six'),(NULL,'eight');
+  PRAGMA writable_schema=ON;
+  UPDATE sqlite_schema SET sql=(sql||'STRICT') WHERE name='t1';
+  PRAGMA writable_schema=RESET;
+  PRAGMA integrity_check(t1);
+} {{NULL value in t1.id}}
+
+finish_test
diff --git a/test/subjournal.test b/test/subjournal.test
new file mode 100644
index 0000000000000000000000000000000000000000..8d4c4499b08ca7c2b017e3c70e3009c79aa09804
--- /dev/null
+++ b/test/subjournal.test
@@ -0,0 +1,69 @@
+# 2017 May 9
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix subjournal
+
+do_execsql_test 1.0 {
+  PRAGMA temp_store = memory;
+  CREATE TABLE t1(a,b,c);
+  INSERT INTO t1 VALUES(1, 2, 3);
+} {}
+do_execsql_test 1.1 {
+  BEGIN;
+    INSERT INTO t1 VALUES(4, 5, 6);
+    SAVEPOINT one;
+      INSERT INTO t1 VALUES(7, 8, 9);
+    ROLLBACK TO one;
+    SELECT * FROM t1;
+} {1 2 3 4 5 6}
+do_execsql_test 1.2 {
+  COMMIT;
+}
+
+do_execsql_test 2.0 {
+  PRAGMA cache_size = 5;
+  CREATE TABLE t2(a BLOB);
+  CREATE INDEX i2 ON t2(a);
+  WITH s(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<100
+  ) INSERT INTO t2 SELECT randomblob(500) FROM s;
+}
+
+do_test 2.1 {
+  forcedelete test.db2
+  sqlite3 db2 test2.db
+  sqlite3_backup B db2 main db main
+  set nPage [db one {PRAGMA page_count}]
+  B step [expr $nPage-10]
+} {SQLITE_OK}
+
+do_execsql_test 2.2 {
+  BEGIN;
+    UPDATE t2 SET a=randomblob(499);
+    SAVEPOINT two;
+      UPDATE t2 SET a=randomblob(498);
+    ROLLBACK TO two;
+  COMMIT;
+  PRAGMA integrity_check;
+} {ok}
+
+do_test 2.3 {
+  B step 1000
+} {SQLITE_DONE}
+do_test 2.4 {
+  B finish
+  execsql { PRAGMA integrity_check } db2
+} {ok}
+
+finish_test
diff --git a/test/subquery.test b/test/subquery.test
new file mode 100644
index 0000000000000000000000000000000000000000..17061d4b6043ace805979c6a9882ab36d5731a62
--- /dev/null
+++ b/test/subquery.test
@@ -0,0 +1,714 @@
+# 2005 January 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing correlated subqueries
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !subquery {
+  finish_test
+  return
+}
+
+do_test subquery-1.1 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t1(a,b);
+    INSERT INTO t1 VALUES(1,2);
+    INSERT INTO t1 VALUES(3,4);
+    INSERT INTO t1 VALUES(5,6);
+    INSERT INTO t1 VALUES(7,8);
+    CREATE TABLE t2(x,y);
+    INSERT INTO t2 VALUES(1,1);
+    INSERT INTO t2 VALUES(3,9);
+    INSERT INTO t2 VALUES(5,25);
+    INSERT INTO t2 VALUES(7,49);
+    COMMIT;
+  }
+  execsql {
+    SELECT a, (SELECT y FROM t2 WHERE x=a) FROM t1 WHERE b<8
+  }
+} {1 1 3 9 5 25}
+do_test subquery-1.2 {
+  execsql {
+    UPDATE t1 SET b=b+(SELECT y FROM t2 WHERE x=a);
+    SELECT * FROM t1;
+  }
+} {1 3 3 13 5 31 7 57}
+
+do_test subquery-1.3 {
+  execsql {
+    SELECT b FROM t1 WHERE EXISTS(SELECT * FROM t2 WHERE y=a)
+  }
+} {3}
+do_test subquery-1.4 {
+  execsql {
+    SELECT b FROM t1 WHERE NOT EXISTS(SELECT * FROM t2 WHERE y=a)
+  }
+} {13 31 57}
+
+# Simple tests to make sure correlated subqueries in WHERE clauses
+# are used by the query optimizer correctly.
+do_test subquery-1.5 {
+  execsql {
+    SELECT a, x FROM t1, t2 WHERE t1.a = (SELECT x);
+  }
+} {1 1 3 3 5 5 7 7}
+do_test subquery-1.6 {
+  execsql {
+    CREATE INDEX i1 ON t1(a);
+    SELECT a, x FROM t1, t2 WHERE t1.a = (SELECT x);
+  }
+} {1 1 3 3 5 5 7 7}
+do_test subquery-1.7 {
+  execsql {
+    SELECT a, x FROM t2, t1 WHERE t1.a = (SELECT x);
+  }
+} {1 1 3 3 5 5 7 7}
+
+# Try an aggregate in both the subquery and the parent query.
+do_test subquery-1.8 {
+  execsql {
+    SELECT count(*) FROM t1 WHERE a > (SELECT count(*) FROM t2);
+  }
+} {2}
+
+# Test a correlated subquery disables the "only open the index" optimization.
+do_test subquery-1.9.1 {
+  execsql {
+    SELECT (y*2)>b FROM t1, t2 WHERE a=x;
+  }
+} {0 1 1 1}
+do_test subquery-1.9.2 {
+  execsql {
+    SELECT a FROM t1 WHERE (SELECT (y*2)>b FROM t2 WHERE a=x); 
+  }
+} {3 5 7}
+
+# Test that the flattening optimization works with subquery expressions.
+do_test subquery-1.10.1 {
+  execsql {
+    SELECT (SELECT a), b FROM t1;
+  }
+} {1 3 3 13 5 31 7 57}
+do_test subquery-1.10.2 {
+  execsql {
+    SELECT * FROM (SELECT (SELECT a), b FROM t1);
+  }
+} {1 3 3 13 5 31 7 57}
+do_test subquery-1.10.3 {
+  execsql {
+    SELECT * FROM (SELECT (SELECT sum(a) FROM t1));
+  }
+} {16}
+do_test subquery-1.10.4 {
+  execsql {
+    CREATE TABLE t5 (val int, period text PRIMARY KEY);
+    INSERT INTO t5 VALUES(5, '2001-3');
+    INSERT INTO t5 VALUES(10, '2001-4');
+    INSERT INTO t5 VALUES(15, '2002-1');
+    INSERT INTO t5 VALUES(5, '2002-2');
+    INSERT INTO t5 VALUES(10, '2002-3');
+    INSERT INTO t5 VALUES(15, '2002-4');
+    INSERT INTO t5 VALUES(10, '2003-1');
+    INSERT INTO t5 VALUES(5, '2003-2');
+    INSERT INTO t5 VALUES(25, '2003-3');
+    INSERT INTO t5 VALUES(5, '2003-4');
+
+    SELECT period, vsum
+    FROM (SELECT 
+      a.period,
+      (select sum(val) from t5 where period between a.period and '2002-4') vsum
+      FROM t5 a where a.period between '2002-1' and '2002-4')
+    WHERE vsum < 45 ;
+  }
+} {2002-2 30 2002-3 25 2002-4 15}
+do_test subquery-1.10.5 {
+  execsql {
+    SELECT period, vsum from
+      (select a.period,
+      (select sum(val) from t5 where period between a.period and '2002-4') vsum
+    FROM t5 a where a.period between '2002-1' and '2002-4') 
+    WHERE vsum < 45 ;
+  }
+} {2002-2 30 2002-3 25 2002-4 15}
+do_test subquery-1.10.6 {
+  execsql {
+    DROP TABLE t5;
+  }
+} {}
+
+
+
+#------------------------------------------------------------------
+# The following test cases - subquery-2.* - are not logically
+# organized. They're here largely because they were failing during
+# one stage of development of sub-queries.
+#
+do_test subquery-2.1 {
+  execsql {
+    SELECT (SELECT 10);
+  }
+} {10}
+do_test subquery-2.2.1 {
+  execsql {
+    CREATE TABLE t3(a PRIMARY KEY, b);
+    INSERT INTO t3 VALUES(1, 2);
+    INSERT INTO t3 VALUES(3, 1);
+  }
+} {}
+do_test subquery-2.2.2 {
+  execsql {
+    SELECT * FROM t3 WHERE a IN (SELECT b FROM t3);
+  }
+} {1 2}
+do_test subquery-2.2.3 {
+  execsql {
+    DROP TABLE t3;
+  }
+} {}
+do_test subquery-2.3.1 {
+  execsql {
+    CREATE TABLE t3(a TEXT);
+    INSERT INTO t3 VALUES('10');
+  }
+} {}
+do_test subquery-2.3.2 {
+  execsql {
+    SELECT a IN (10.0, 20) FROM t3;
+  }
+} {0}
+do_test subquery-2.3.3 {
+  execsql {
+    DROP TABLE t3;
+  }
+} {}
+do_test subquery-2.4.1 {
+  execsql {
+    CREATE TABLE t3(a TEXT);
+    INSERT INTO t3 VALUES('XX');
+  }
+} {}
+do_test subquery-2.4.2 {
+  execsql {
+    SELECT count(*) FROM t3 WHERE a IN (SELECT 'XX')
+  }
+} {1}
+do_test subquery-2.4.3 {
+  execsql {
+    DROP TABLE t3;
+  }
+} {}
+do_test subquery-2.5.1 {
+  execsql {
+    CREATE TABLE t3(a INTEGER);
+    INSERT INTO t3 VALUES(10);
+
+    CREATE TABLE t4(x TEXT);
+    INSERT INTO t4 VALUES('10.0');
+  }
+} {}
+do_test subquery-2.5.2 {
+  # In the expr "x IN (SELECT a FROM t3)" the RHS of the IN operator
+  # has text affinity and the LHS has integer affinity.  The rule is
+  # that we try to convert both sides to an integer before doing the
+  # comparision.  Hence, the integer value 10 in t3 will compare equal
+  # to the string value '10.0' in t4 because the t4 value will be
+  # converted into an integer.
+  execsql {
+    SELECT * FROM t4 WHERE x IN (SELECT a FROM t3);
+  }
+} {10.0}
+do_test subquery-2.5.3.1 {
+  # The t4i index cannot be used to resolve the "x IN (...)" constraint
+  # because the constraint has integer affinity but t4i has text affinity.
+  execsql {
+    CREATE INDEX t4i ON t4(x);
+    SELECT * FROM t4 WHERE x IN (SELECT a FROM t3);
+  }
+} {10.0}
+do_test subquery-2.5.3.2 {
+  # Verify that the t4i index was not used in the previous query
+  execsql {
+    EXPLAIN QUERY PLAN
+    SELECT * FROM t4 WHERE x IN (SELECT a FROM t3);
+  }
+} {~/t4i/}
+do_test subquery-2.5.4 {
+  execsql {
+    DROP TABLE t3;
+    DROP TABLE t4;
+  }
+} {}
+
+#------------------------------------------------------------------
+# The following test cases - subquery-3.* - test tickets that
+# were raised during development of correlated subqueries.
+#
+
+# Ticket 1083
+ifcapable view {
+  do_test subquery-3.1 {
+    catchsql { DROP TABLE t1; }
+    catchsql { DROP TABLE t2; }
+    execsql {
+      CREATE TABLE t1(a,b);
+      INSERT INTO t1 VALUES(1,2);
+      CREATE VIEW v1 AS SELECT b FROM t1 WHERE a>0;
+      CREATE TABLE t2(p,q);
+      INSERT INTO t2 VALUES(2,9);
+      SELECT * FROM v1 WHERE EXISTS(SELECT * FROM t2 WHERE p=v1.b);
+    }
+  } {2}
+  do_test subquery-3.1.1 {
+    execsql {
+      SELECT * FROM v1 WHERE EXISTS(SELECT 1);
+    }
+  } {2}
+} else {
+  catchsql { DROP TABLE t1; }
+  catchsql { DROP TABLE t2; }
+  execsql {
+    CREATE TABLE t1(a,b);
+    INSERT INTO t1 VALUES(1,2);
+    CREATE TABLE t2(p,q);
+    INSERT INTO t2 VALUES(2,9);
+  }
+}
+
+# Ticket 1084
+do_test subquery-3.2 {
+  catchsql {
+    CREATE TABLE t1(a,b);
+    INSERT INTO t1 VALUES(1,2);
+  }
+  execsql {
+    SELECT (SELECT t1.a) FROM t1;
+  }
+} {1}
+
+# Test Cases subquery-3.3.* test correlated subqueries where the
+# parent query is an aggregate query. Ticket #1105 is an example
+# of such a query.
+#
+do_test subquery-3.3.1 {
+  execsql {
+    SELECT a, (SELECT b) FROM t1 GROUP BY a;
+  }
+} {1 2}
+do_test subquery-3.3.2 {
+  catchsql {DROP TABLE t2}
+  execsql {
+    CREATE TABLE t2(c, d);
+    INSERT INTO t2 VALUES(1, 'one');
+    INSERT INTO t2 VALUES(2, 'two');
+    SELECT a, (SELECT d FROM t2 WHERE a=c) FROM t1 GROUP BY a;
+  }
+} {1 one}
+do_test subquery-3.3.3 {
+  execsql {
+    INSERT INTO t1 VALUES(2, 4);
+    SELECT max(a), (SELECT d FROM t2 WHERE a=c) FROM t1;
+  }
+} {2 two}
+do_test subquery-3.3.4 {
+  execsql {
+    SELECT a, (SELECT (SELECT d FROM t2 WHERE a=c)) FROM t1 GROUP BY a;
+  }
+} {1 one 2 two}
+do_test subquery-3.3.5 {
+  execsql {
+    SELECT a, (SELECT count(*) FROM t2 WHERE a=c) FROM t1;
+  }
+} {1 1 2 1}
+
+# The following tests check for aggregate subqueries in an aggregate
+# query.
+#
+do_test subquery-3.4.1 {
+  execsql {
+    CREATE TABLE t34(x,y);
+    INSERT INTO t34 VALUES(106,4), (107,3), (106,5), (107,5);
+    SELECT a.x, avg(a.y)
+      FROM t34 AS a
+     GROUP BY a.x
+     HAVING NOT EXISTS( SELECT b.x, avg(b.y)
+                          FROM t34 AS b
+                         GROUP BY b.x
+                         HAVING avg(a.y) > avg(b.y));
+  }
+} {107 4.0}
+do_test subquery-3.4.2 {
+  execsql {
+    SELECT a.x, avg(a.y) AS avg1
+      FROM t34 AS a
+     GROUP BY a.x
+     HAVING NOT EXISTS( SELECT b.x, avg(b.y) AS avg2
+                          FROM t34 AS b
+                         GROUP BY b.x
+                         HAVING avg1 > avg2);
+  }
+} {107 4.0}
+do_test subquery-3.4.3 {
+  execsql {
+    SELECT
+       a.x,
+       avg(a.y),
+       NOT EXISTS ( SELECT b.x, avg(b.y)
+                      FROM t34 AS b
+                      GROUP BY b.x
+                     HAVING avg(a.y) > avg(b.y)),
+       EXISTS ( SELECT c.x, avg(c.y)
+                  FROM t34 AS c
+                  GROUP BY c.x
+                 HAVING avg(a.y) > avg(c.y))
+      FROM t34 AS a
+     GROUP BY a.x
+     ORDER BY a.x;
+  }
+} {106 4.5 0 1 107 4.0 1 0}
+
+do_test subquery-3.5.1 {
+  execsql {
+    CREATE TABLE t35a(x); INSERT INTO t35a VALUES(1),(2),(3);
+    CREATE TABLE t35b(y); INSERT INTO t35b VALUES(98), (99);
+    SELECT max((SELECT avg(y) FROM t35b)) FROM t35a;
+  }
+} {98.5}
+do_test subquery-3.5.2 {
+  execsql {
+    SELECT max((SELECT count(y) FROM t35b)) FROM t35a;
+  }
+} {2}
+do_test subquery-3.5.3 {
+  execsql {
+    SELECT max((SELECT count() FROM t35b)) FROM t35a;
+  }
+} {2}
+do_test subquery-3.5.4 {
+  catchsql {
+    SELECT max((SELECT count(x) FROM t35b)) FROM t35a;
+  }
+} {1 {misuse of aggregate: count()}}
+do_test subquery-3.5.5 {
+  catchsql {
+    SELECT max((SELECT count(x) FROM t35b)) FROM t35a;
+  }
+} {1 {misuse of aggregate: count()}}
+do_test subquery-3.5.6 {
+  catchsql {
+    SELECT max((SELECT a FROM (SELECT count(x) AS a FROM t35b))) FROM t35a;
+  }
+} {1 {misuse of aggregate: count()}}
+do_test subquery-3.5.7 {
+  execsql {
+    SELECT max((SELECT a FROM (SELECT count(y) AS a FROM t35b))) FROM t35a;
+  }
+} {2}
+
+
+#------------------------------------------------------------------
+# These tests - subquery-4.* - use the TCL statement cache to try 
+# and expose bugs to do with re-using statements that have been 
+# passed to sqlite3_reset().
+#
+# One problem was that VDBE memory cells were not being initialized
+# to NULL on the second and subsequent executions.
+#
+do_test subquery-4.1.1 {
+  execsql {
+    SELECT (SELECT a FROM t1);
+  }
+} {1}
+do_test subquery-4.2 {
+  execsql {
+    DELETE FROM t1;
+    SELECT (SELECT a FROM t1);
+  }
+} {{}}
+do_test subquery-4.2.1 {
+  execsql {
+    CREATE TABLE t3(a PRIMARY KEY);
+    INSERT INTO t3 VALUES(10);
+  }
+  execsql {INSERT INTO t3 VALUES((SELECT max(a) FROM t3)+1)}
+} {}
+do_test subquery-4.2.2 {
+  execsql {INSERT INTO t3 VALUES((SELECT max(a) FROM t3)+1)}
+} {}
+
+#------------------------------------------------------------------
+# The subquery-5.* tests make sure string literals in double-quotes
+# are handled efficiently.  Double-quote literals are first checked
+# to see if they match any column names.  If there is not column name
+# match then those literals are used a string constants.  When a
+# double-quoted string appears, we want to make sure that the search
+# for a matching column name did not cause an otherwise static subquery
+# to become a dynamic (correlated) subquery.
+#
+do_test subquery-5.1 {
+  proc callcntproc {n} {
+    incr ::callcnt
+    return $n
+  }
+  set callcnt 0
+  db function callcnt callcntproc
+  execsql {
+    CREATE TABLE t4(x,y);
+    INSERT INTO t4 VALUES('one',1);
+    INSERT INTO t4 VALUES('two',2);
+    INSERT INTO t4 VALUES('three',3);
+    INSERT INTO t4 VALUES('four',4);
+    CREATE TABLE t5(a,b);
+    INSERT INTO t5 VALUES(1,11);
+    INSERT INTO t5 VALUES(2,22);
+    INSERT INTO t5 VALUES(3,33);
+    INSERT INTO t5 VALUES(4,44);
+    SELECT b FROM t5 WHERE a IN 
+       (SELECT callcnt(y)+0 FROM t4 WHERE x='two')
+  }
+} {22}
+do_test subquery-5.2 {
+  # This is the key test.  The subquery should have only run once.  If
+  # The double-quoted identifier "two" were causing the subquery to be
+  # processed as a correlated subquery, then it would have run 4 times.
+  set callcnt
+} {1}
+
+
+# Ticket #1380.  Make sure correlated subqueries on an IN clause work
+# correctly when the left-hand side of the IN operator is constant.
+#
+do_test subquery-6.1 {
+  set callcnt 0
+  execsql {
+    SELECT x FROM t4 WHERE 1 IN (SELECT callcnt(count(*)) FROM t5 WHERE a=y)
+  }
+} {one two three four}
+do_test subquery-6.2 {
+  set callcnt
+} {4}
+do_test subquery-6.3 {
+  set callcnt 0
+  execsql {
+    SELECT x FROM t4 WHERE 1 IN (SELECT callcnt(count(*)) FROM t5 WHERE a=1)
+  }
+} {one two three four}
+do_test subquery-6.4 {
+  set callcnt
+} {1}
+
+if 0 {   #############  disable until we get #2652 fixed
+# Ticket #2652.  Allow aggregate functions of outer queries inside
+# a non-aggregate subquery.
+#
+do_test subquery-7.1 {
+  execsql {
+    CREATE TABLE t7(c7);
+    INSERT INTO t7 VALUES(1);
+    INSERT INTO t7 VALUES(2);
+    INSERT INTO t7 VALUES(3);
+    CREATE TABLE t8(c8);
+    INSERT INTO t8 VALUES(100);
+    INSERT INTO t8 VALUES(200);
+    INSERT INTO t8 VALUES(300);
+    CREATE TABLE t9(c9);
+    INSERT INTO t9 VALUES(10000);
+    INSERT INTO t9 VALUES(20000);
+    INSERT INTO t9 VALUES(30000);
+
+    SELECT (SELECT c7+c8 FROM t7) FROM t8;
+  }
+} {101 201 301}
+do_test subquery-7.2 {
+  execsql {
+    SELECT (SELECT max(c7)+c8 FROM t7) FROM t8;
+  }
+} {103 203 303}
+do_test subquery-7.3 {
+  execsql {
+    SELECT (SELECT c7+max(c8) FROM t8) FROM t7
+  }
+} {301}
+do_test subquery-7.4 {
+  execsql {
+    SELECT (SELECT max(c7)+max(c8) FROM t8) FROM t7
+  }
+} {303}
+do_test subquery-7.5 {
+  execsql {
+    SELECT (SELECT c8 FROM t8 WHERE rowid=max(c7)) FROM t7
+  }
+} {300}
+do_test subquery-7.6 {
+  execsql {
+    SELECT (SELECT (SELECT max(c7+c8+c9) FROM t9) FROM t8) FROM t7
+  }
+} {30101 30102 30103}
+do_test subquery-7.7 {
+  execsql {
+    SELECT (SELECT (SELECT c7+max(c8+c9) FROM t9) FROM t8) FROM t7
+  }
+} {30101 30102 30103}
+do_test subquery-7.8 {
+  execsql {
+    SELECT (SELECT (SELECT max(c7)+c8+c9 FROM t9) FROM t8) FROM t7
+  }
+} {10103}
+do_test subquery-7.9 {
+  execsql {
+    SELECT (SELECT (SELECT c7+max(c8)+c9 FROM t9) FROM t8) FROM t7
+  }
+} {10301 10302 10303}
+do_test subquery-7.10 {
+  execsql {
+    SELECT (SELECT (SELECT c7+c8+max(c9) FROM t9) FROM t8) FROM t7
+  }
+} {30101 30102 30103}
+do_test subquery-7.11 {
+  execsql {
+    SELECT (SELECT (SELECT max(c7)+max(c8)+max(c9) FROM t9) FROM t8) FROM t7
+  }
+} {30303}
+}  ;############# Disabled
+
+# 2015-04-21.
+# Verify that a memory leak in the table column type and collation analysis
+# is plugged.
+#
+do_execsql_test subquery-8.1 {
+  CREATE TABLE t8(a TEXT, b INT);
+  SELECT (SELECT 0 FROM (SELECT * FROM t1)) AS x WHERE x;
+  SELECT (SELECT 0 FROM (SELECT * FROM (SELECT 0))) AS x WHERE x;
+} {}
+
+# 2022-01-12 https://sqlite.org/forum/forumpost/0ec80f12d02acb3f
+# 
+reset_db
+do_execsql_test subquery-9.1 {
+  CREATE TABLE t1(x);
+  INSERT INTO t1 VALUES(1),(1),(1);
+  SELECT (SELECT DISTINCT x FROM t1 ORDER BY +x LIMIT 1 OFFSET 100) FROM t1;
+} {{} {} {}}
+do_execsql_test subquery-9.2 {
+  SELECT (SELECT DISTINCT x FROM t1 ORDER BY +x LIMIT 1 OFFSET 0) FROM t1;
+} {1 1 1}
+do_execsql_test subquery-9.3 {
+  INSERT INTO t1 VALUES(2);
+  SELECT (SELECT DISTINCT x FROM t1 ORDER BY +x LIMIT 1 OFFSET 1) FROM t1;
+} {2 2 2 2}
+do_execsql_test subquery-9.4 {
+  SELECT (SELECT DISTINCT x FROM t1 ORDER BY +x LIMIT 1 OFFSET 2) FROM t1;
+} {{} {} {} {}}
+
+# 2023-09-15
+# Query planner performance regression reported by private email 
+# on 2023-09-14, caused by VIEWSCAN optimization of check-in 609fbb94b8f01d67
+# from 2022-09-01.
+#
+reset_db
+do_execsql_test subquery-10.1 {
+  CREATE TABLE t1(aa TEXT, bb INT, cc TEXT);
+  CREATE INDEX x11 on t1(bb);
+  CREATE INDEX x12 on t1(aa);
+  CREATE TABLE t2(aa TEXT, xx INT);
+  ANALYZE sqlite_master;
+  INSERT INTO sqlite_stat1(tbl, idx, stat) VALUES('t1', 'x11', '156789 28');
+  INSERT INTO sqlite_stat1(tbl, idx, stat) VALUES('t1', 'x12', '156789 1');
+  ANALYZE sqlite_master;
+}
+do_eqp_test subquery-10.2 {
+  WITH v1(aa,cc,bb) AS (SELECT aa, cc, bb FROM t1 WHERE bb=12345),
+       v2(aa,mx)    AS (SELECT aa, max(xx) FROM t2 GROUP BY aa)
+  SELECT * FROM v1 JOIN v2 ON v1.aa=v2.aa;
+} {
+  QUERY PLAN
+  |--CO-ROUTINE v2
+  |  |--SCAN t2
+  |  `--USE TEMP B-TREE FOR GROUP BY
+  |--SEARCH t1 USING INDEX x11 (bb=?)
+  `--SEARCH v2 USING AUTOMATIC COVERING INDEX (aa=?)
+}
+# ^^^^^^^^^^^^^
+# Prior to the fix the incorrect (slow) plan caused by the
+# VIEWSCAN optimization was:
+#
+# QUERY PLAN
+# |--CO-ROUTINE v2
+# |  |--SCAN t2
+# |  `--USE TEMP B-TREE FOR GROUP BY
+# |--SCAN v2
+# `--SEARCH t1 USING INDEX x12 (aa=?)
+#
+
+#-----------------------------------------------------------------------------
+# 2024-04-25 Column affinities for columns of compound subqueries
+#
+reset_db
+sqlite3_test_control SQLITE_TESTCTRL_INTERNAL_FUNCTIONS db
+do_execsql_test subquery-11.1 {
+  CREATE TABLE t1(ix INT, rx REAL, bx BLOB, tx TEXT, ax);
+  INSERT INTO t1 VALUES(1,1.0,x'31','x',NULL);
+  WITH c(a) AS (SELECT 'y' UNION SELECT tx FROM t1) SELECT affinity(a) FROM c;
+  WITH c(a) AS (SELECT tx FROM t1 UNION SELECT 'y') SELECT affinity(a) FROM c;
+} {text text text text}
+do_execsql_test subquery-11.2 {
+  WITH c(a) AS (SELECT 2 UNION SELECT tx FROM t1) SELECT affinity(a) FROM c;
+  WITH c(a) AS (SELECT tx FROM t1 UNION SELECT 2) SELECT affinity(a) FROM c;
+} {blob blob blob blob}
+do_execsql_test subquery-11.3 {
+  WITH c(a) AS (SELECT 2.0 UNION SELECT tx FROM t1) SELECT affinity(a) FROM c;
+  WITH c(a) AS (SELECT tx FROM t1 UNION SELECT 2.0) SELECT affinity(a) FROM c;
+} {blob blob blob blob}
+do_execsql_test subquery-11.4 {
+  WITH c(a) AS (SELECT null UNION SELECT tx FROM t1) SELECT affinity(a) FROM c;
+  WITH c(a) AS (SELECT tx FROM t1 UNION SELECT null) SELECT affinity(a) FROM c;
+} {text text text text}
+do_execsql_test subquery-11.5 {
+  WITH c(a) AS (SELECT x'32' UNION SELECT tx FROM t1) SELECT affinity(a) FROM c;
+  WITH c(a) AS (SELECT tx FROM t1 UNION SELECT x'32') SELECT affinity(a) FROM c;
+} {text text text text}
+do_execsql_test subquery-11.6 {
+  WITH c(a) AS (SELECT 3 UNION SELECT ix FROM t1) SELECT affinity(a) FROM c;
+  WITH c(a) AS (SELECT ix FROM t1 UNION SELECT 3) SELECT affinity(a) FROM c;
+} {integer integer integer integer}
+do_execsql_test subquery-11.7 {
+  WITH c(a) AS (SELECT 3.0 UNION SELECT ix FROM t1) SELECT affinity(a) FROM c;
+  WITH c(a) AS (SELECT ix FROM t1 UNION SELECT 3.0) SELECT affinity(a) FROM c;
+} {integer integer integer integer}
+do_execsql_test subquery-11.8 {
+  WITH c(a) AS (SELECT '3' UNION SELECT ix FROM t1) SELECT affinity(a) FROM c;
+  WITH c(a) AS (SELECT ix FROM t1 UNION SELECT '3') SELECT affinity(a) FROM c;
+} {blob blob blob blob}
+do_execsql_test subquery-11.10 {
+  WITH c(a) AS (SELECT x'32' UNION SELECT ix FROM t1) SELECT affinity(a) FROM c;
+  WITH c(a) AS (SELECT ix FROM t1 UNION SELECT x'32') SELECT affinity(a) FROM c;
+} {integer integer integer integer}
+do_execsql_test subquery-11.11 {
+  WITH c(a) AS (SELECT 4 UNION SELECT rx FROM t1) SELECT affinity(a) FROM c;
+  WITH c(a) AS (SELECT rx FROM t1 UNION SELECT 4) SELECT affinity(a) FROM c;
+} {real real real real}
+do_execsql_test subquery-11.12 {
+  WITH c(a) AS (SELECT '4' UNION SELECT rx FROM t1) SELECT affinity(a) FROM c;
+  WITH c(a) AS (SELECT rx FROM t1 UNION SELECT '4') SELECT affinity(a) FROM c;
+} {blob blob blob blob}
+do_execsql_test subquery-11.13 {
+  WITH c(a) AS (SELECT null UNION SELECT rx FROM t1) SELECT affinity(a) FROM c;
+  WITH c(a) AS (SELECT rx FROM t1 UNION SELECT null) SELECT affinity(a) FROM c;
+} {real real real real}
+do_execsql_test subquery-11.14 {
+  WITH c(a) AS (SELECT x'b4' UNION SELECT rx FROM t1) SELECT affinity(a) FROM c;
+  WITH c(a) AS (SELECT rx FROM t1 UNION SELECT x'b4') SELECT affinity(a) FROM c;
+} {real real real real}
+
+finish_test
diff --git a/test/subquery2.test b/test/subquery2.test
new file mode 100644
index 0000000000000000000000000000000000000000..0c1bdc669731d4e39d845a4deef36e26090e92a6
--- /dev/null
+++ b/test/subquery2.test
@@ -0,0 +1,218 @@
+# 2011 September 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing correlated subqueries
+#
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix subquery2
+
+ifcapable !subquery {
+  finish_test
+  return
+}
+
+do_test subquery2-1.1 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t1(a,b);
+    INSERT INTO t1 VALUES(1,2);
+    INSERT INTO t1 VALUES(3,4);
+    INSERT INTO t1 VALUES(5,6);
+    INSERT INTO t1 VALUES(7,8);
+    CREATE TABLE t2(c,d);
+    INSERT INTO t2 VALUES(1,1);
+    INSERT INTO t2 VALUES(3,9);
+    INSERT INTO t2 VALUES(5,25);
+    INSERT INTO t2 VALUES(7,49);
+    CREATE TABLE t3(e,f);
+    INSERT INTO t3 VALUES(1,1);
+    INSERT INTO t3 VALUES(3,27);
+    INSERT INTO t3 VALUES(5,125);
+    INSERT INTO t3 VALUES(7,343);
+    COMMIT;
+  }
+  execsql {
+    SELECT a FROM t1
+     WHERE b IN (SELECT x+1 FROM (SELECT DISTINCT f/(a*a) AS x FROM t3));
+  }
+} {1 3 5 7}
+do_test subquery2-1.2 {
+  execsql {
+    CREATE INDEX t1b ON t1(b);
+    SELECT a FROM t1
+     WHERE b IN (SELECT x+1 FROM (SELECT DISTINCT f/(a*a) AS x FROM t3));
+  }
+} {1 3 5 7}
+
+do_test subquery2-1.11 {
+  execsql {
+    SELECT a FROM t1
+     WHERE +b=(SELECT x+1 FROM (SELECT DISTINCT f/(a*a) AS x FROM t3));
+  }
+} {1}
+do_test subquery2-1.12 {
+  execsql {
+    SELECT a FROM t1
+     WHERE b=(SELECT x+1 FROM (SELECT DISTINCT f/(a*a) AS x FROM t3));
+  }
+} {1}
+
+do_test subquery2-1.21 {
+  execsql {
+    SELECT a FROM t1
+     WHERE +b=(SELECT x+1 FROM 
+                 (SELECT DISTINCT f/d AS x FROM t2 JOIN t3 ON d*a=f))
+  }
+} {1 3 5 7}
+do_test subquery2-1.22 {
+  execsql {
+    SELECT a FROM t1
+     WHERE b=(SELECT x+1 FROM 
+                 (SELECT DISTINCT f/d AS x FROM t2 JOIN t3 ON d*a=f))
+  }
+} {1 3 5 7}
+
+#-------------------------------------------------------------------------
+# Test that ticket d6b36be38a has been fixed.
+do_execsql_test 2.1 {
+  CREATE TABLE t4(a, b);
+  CREATE TABLE t5(a, b);
+  INSERT INTO t5 VALUES(3, 5);
+
+  INSERT INTO t4 VALUES(1, 1);
+  INSERT INTO t4 VALUES(2, 3);
+  INSERT INTO t4 VALUES(3, 6);
+  INSERT INTO t4 VALUES(4, 10);
+  INSERT INTO t4 VALUES(5, 15);
+}
+
+do_execsql_test 2.2 {
+  SELECT * 
+  FROM (SELECT * FROM t4 ORDER BY a LIMIT -1 OFFSET 1) 
+  LIMIT (SELECT a FROM t5)
+} {2 3   3 6   4 10}
+
+############################################################################
+# Ticket http://www.sqlite.org/src/info/d11a6e908f (2014-09-20)
+# Query planner fault on three-way nested join with compound inner SELECT 
+#
+do_execsql_test 3.0 {
+  DROP TABLE IF EXISTS t1;
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t1 (id INTEGER PRIMARY KEY, data TEXT);
+  INSERT INTO t1(id,data) VALUES(9,'nine-a');
+  INSERT INTO t1(id,data) VALUES(10,'ten-a');
+  INSERT INTO t1(id,data) VALUES(11,'eleven-a');
+  CREATE TABLE t2 (id INTEGER PRIMARY KEY, data TEXT);
+  INSERT INTO t2(id,data) VALUES(9,'nine-b');
+  INSERT INTO t2(id,data) VALUES(10,'ten-b');
+  INSERT INTO t2(id,data) VALUES(11,'eleven-b');
+  
+  SELECT id FROM (
+    SELECT id,data FROM (
+       SELECT * FROM t1 UNION ALL SELECT * FROM t2
+    )
+    WHERE id=10 ORDER BY data
+  );
+} {10 10}
+do_execsql_test 3.1 {
+  SELECT data FROM (
+     SELECT 'dummy', data FROM (
+       SELECT data FROM t1 UNION ALL SELECT data FROM t1
+     ) ORDER BY data
+  );
+} {eleven-a eleven-a nine-a nine-a ten-a ten-a}
+do_execsql_test 3.2 {
+  DROP TABLE IF EXISTS t3;
+  DROP TABLE IF EXISTS t4;
+  CREATE TABLE t3(id INTEGER, data TEXT);
+  CREATE TABLE t4(id INTEGER, data TEXT);
+  INSERT INTO t3 VALUES(4, 'a'),(2,'c');
+  INSERT INTO t4 VALUES(3, 'b'),(1,'d');
+
+  SELECT data, id FROM (
+    SELECT id, data FROM (
+       SELECT * FROM t3 UNION ALL SELECT * FROM t4
+    ) ORDER BY data
+  );
+} {a 4 b 3 c 2 d 1}
+
+#-------------------------------------------------------------------------
+
+do_execsql_test 4.0 {
+  CREATE TABLE t6(x);
+}
+
+foreach {tn sql} {
+  1 {
+    SELECT 'abc' FROM (
+        SELECT x FROM t6 ORDER BY 1
+        UNION ALL
+        SELECT x FROM t6
+    )
+  }
+  2 {
+    SELECT 'abc' FROM (
+        SELECT x FROM t6
+        UNION ALL
+        SELECT x FROM t6 ORDER BY 1
+        UNION ALL
+        SELECT x FROM t6
+    )
+  }
+  3 {
+    SELECT 'abc' FROM (
+        SELECT x FROM t6 ORDER BY 1
+        UNION ALL
+        SELECT x FROM t6 ORDER BY 1
+        UNION ALL
+        SELECT x FROM t6
+    )
+  }
+  4 {
+    SELECT 'abc' FROM (
+        SELECT x FROM t6
+        UNION ALL
+        SELECT x FROM t6 ORDER BY 1
+        UNION ALL
+        SELECT x FROM t6 ORDER BY 1
+        UNION ALL
+        SELECT x FROM t6
+    )
+  }
+} {
+  do_catchsql_test 4.$tn $sql [list {*}{
+    1 {ORDER BY clause should come after UNION ALL not before}
+  }]
+}
+
+#-------------------------------------------------------------------------
+# Test that ticket [9cdc5c46] is fixed.
+#
+reset_db
+do_execsql_test 5.0 {
+  CREATE TABLE t1(x);
+  INSERT INTO t1 VALUES('ALFKI');
+  INSERT INTO t1 VALUES('ANATR');
+
+  CREATE TABLE t2(y, z);
+  CREATE INDEX t2y ON t2 (y);
+  INSERT INTO t2 VALUES('ANATR', '1997-08-08 00:00:00');
+  INSERT INTO t2 VALUES('ALFKI', '1997-08-25 00:00:00');
+}
+do_execsql_test 5.1 {
+  SELECT ( SELECT y FROM t2 WHERE x = y ORDER BY y, z) FROM t1;
+} {ALFKI ANATR}
+
+finish_test
diff --git a/test/subselect.test b/test/subselect.test
new file mode 100644
index 0000000000000000000000000000000000000000..4d0efde47abf9c15b7505728af71d8256cf812a4
--- /dev/null
+++ b/test/subselect.test
@@ -0,0 +1,210 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing SELECT statements that are part of
+# expressions.
+#
+# $Id: subselect.test,v 1.16 2008/08/04 03:51:24 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Omit this whole file if the library is build without subquery support.
+ifcapable !subquery {
+  finish_test
+  return
+}
+
+# Basic sanity checking.  Try a simple subselect.
+#
+do_test subselect-1.1 {
+  execsql {
+    CREATE TABLE t1(a int, b int);
+    INSERT INTO t1 VALUES(1,2);
+    INSERT INTO t1 VALUES(3,4);
+    INSERT INTO t1 VALUES(5,6);
+  }
+  execsql {SELECT * FROM t1 WHERE a = (SELECT count(*) FROM t1)}
+} {3 4}
+
+# Try a select with more than one result column.
+#
+do_test subselect-1.2 {
+  set v [catch {execsql {SELECT * FROM t1 WHERE a = (SELECT * FROM t1)}} msg]
+  lappend v $msg
+} {1 {row value misused}}
+
+# A subselect without an aggregate.
+#
+do_test subselect-1.3a {
+  execsql {SELECT b from t1 where a = (SELECT a FROM t1 WHERE b=2)}
+} {2}
+do_test subselect-1.3b {
+  execsql {SELECT b from t1 where a = (SELECT a FROM t1 WHERE b=4)}
+} {4}
+do_test subselect-1.3c {
+  execsql {SELECT b from t1 where a = (SELECT a FROM t1 WHERE b=6)}
+} {6}
+do_test subselect-1.3d {
+  execsql {SELECT b from t1 where a = (SELECT a FROM t1 WHERE b=8)}
+} {}
+ifcapable compound {
+  do_test subselect-1.3e {
+    execsql {
+      SELECT b FROM t1
+       WHERE a = (SELECT a FROM t1 UNION SELECT b FROM t1 ORDER BY 1);
+    }
+  } {2}
+}
+
+# What if the subselect doesn't return any value.  We should get
+# NULL as the result.  Check it out.
+#
+do_test subselect-1.4 {
+  execsql {SELECT b from t1 where a = coalesce((SELECT a FROM t1 WHERE b=5),1)}
+} {2}
+
+# Try multiple subselects within a single expression.
+#
+do_test subselect-1.5 {
+  execsql {
+    CREATE TABLE t2(x int, y int);
+    INSERT INTO t2 VALUES(1,2);
+    INSERT INTO t2 VALUES(2,4);
+    INSERT INTO t2 VALUES(3,8);
+    INSERT INTO t2 VALUES(4,16);
+  }
+  execsql {
+    SELECT y from t2 
+    WHERE x = (SELECT sum(b) FROM t1 where a notnull) - (SELECT sum(a) FROM t1)
+  }
+} {8}
+
+# Try something useful.  Delete every entry from t2 where the
+# x value is less than half of the maximum.
+#
+do_test subselect-1.6 {
+  execsql {DELETE FROM t2 WHERE x < 0.5*(SELECT max(x) FROM t2)}
+  execsql {SELECT x FROM t2 ORDER BY x}
+} {2 3 4}
+
+# Make sure sorting works for SELECTs there used as a scalar expression.
+#
+do_test subselect-2.1 {
+  execsql {
+    SELECT (SELECT a FROM t1 ORDER BY a), (SELECT a FROM t1 ORDER BY a DESC)
+  }
+} {1 5}
+do_test subselect-2.2 {
+  execsql {
+    SELECT 1 IN (SELECT a FROM t1 ORDER BY a);
+  }
+} {1}
+do_test subselect-2.3 {
+  execsql {
+    SELECT 2 IN (SELECT a FROM t1 ORDER BY a DESC);
+  }
+} {0}
+
+# Verify that the ORDER BY clause is honored in a subquery.
+#
+ifcapable compound {
+do_test subselect-3.1 {
+  execsql {
+    CREATE TABLE t3(x int);
+    INSERT INTO t3 SELECT a FROM t1 UNION ALL SELECT b FROM t1;
+    SELECT * FROM t3 ORDER BY x;
+  }
+} {1 2 3 4 5 6}
+} ;# ifcapable compound
+ifcapable !compound {
+do_test subselect-3.1 {
+  execsql {
+    CREATE TABLE t3(x int);
+    INSERT INTO t3 SELECT a FROM t1; 
+    INSERT INTO t3 SELECT b FROM t1;
+    SELECT * FROM t3 ORDER BY x;
+  }
+} {1 2 3 4 5 6}
+} ;# ifcapable !compound
+
+do_test subselect-3.2 {
+  execsql {
+    SELECT sum(x) FROM (SELECT x FROM t3 ORDER BY x LIMIT 2);
+  }
+} {3}
+do_test subselect-3.3 {
+  execsql {
+    SELECT sum(x) FROM (SELECT x FROM t3 ORDER BY x DESC LIMIT 2);
+  }
+} {11}
+do_test subselect-3.4 {
+  execsql {
+    SELECT (SELECT x FROM t3 ORDER BY x);
+  }
+} {1}
+do_test subselect-3.5 {
+  execsql {
+    SELECT (SELECT x FROM t3 ORDER BY x DESC);
+  }
+} {6}
+do_test subselect-3.6 {
+  execsql {
+    SELECT (SELECT x FROM t3 ORDER BY x LIMIT 1);
+  }
+} {1}
+do_test subselect-3.7 {
+  execsql {
+    SELECT (SELECT x FROM t3 ORDER BY x DESC LIMIT 1);
+  }
+} {6}
+do_test subselect-3.8 {
+  execsql {
+    SELECT (SELECT x FROM t3 ORDER BY x LIMIT 1 OFFSET 2);
+  }
+} {3}
+do_test subselect-3.9 {
+  execsql {
+    SELECT (SELECT x FROM t3 ORDER BY x DESC LIMIT 1 OFFSET 2);
+  }
+} {4}
+do_test subselect-3.10 {
+  execsql {
+    SELECT x FROM t3 WHERE x IN
+       (SELECT x FROM t3 ORDER BY x DESC LIMIT 1 OFFSET 2);
+  }
+} {4}
+
+# Ticket #2295.
+# Make sure type affinities work correctly on subqueries with
+# an ORDER BY clause.
+#
+do_test subselect-4.1 {
+  execsql {
+    CREATE TABLE t4(a TEXT, b TEXT);
+    INSERT INTO t4 VALUES('a','1');
+    INSERT INTO t4 VALUES('b','2');
+    INSERT INTO t4 VALUES('c','3');
+    SELECT a FROM t4 WHERE b IN (SELECT b FROM t4 ORDER BY b);
+  }
+} {a b c}
+do_test subselect-4.2 {
+  execsql {
+    SELECT a FROM t4 WHERE b IN (SELECT b FROM t4 ORDER BY b LIMIT 1);
+  }
+} {a}
+do_test subselect-4.3 {
+  execsql {
+    SELECT a FROM t4 WHERE b IN (SELECT b FROM t4 ORDER BY b DESC LIMIT 1);
+  }
+} {c}
+
+finish_test
diff --git a/test/substr.test b/test/substr.test
new file mode 100644
index 0000000000000000000000000000000000000000..16ce080529efdaed847bb7b51ad42729a5f81745
--- /dev/null
+++ b/test/substr.test
@@ -0,0 +1,158 @@
+# 2007 May 14
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the built-in SUBSTR() functions.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !tclvar {
+  finish_test
+  return
+}
+
+# Create a table to work with.
+#
+execsql { 
+  CREATE TABLE t1(t text, b blob)
+}
+proc substr-test {id string i1 i2 result} {
+  db eval {
+    DELETE FROM t1;
+    INSERT INTO t1(t) VALUES($string)
+  }
+  do_test substr-$id.1 [subst {
+    execsql {
+      SELECT substr(t, $i1, $i2) FROM t1
+    }
+  }] [list $result]
+  set qstr '[string map {' ''} $string]'
+  do_test substr-$id.2 [subst {
+    execsql {
+      SELECT substring($qstr, $i1, $i2)
+    }
+  }] [list $result]
+}
+proc subblob-test {id hex i1 i2 hexresult} {
+  db eval "
+    DELETE FROM t1;
+    INSERT INTO t1(b) VALUES(x'$hex')
+  "
+  do_test substr-$id.1 [subst {
+    execsql {
+      SELECT hex(substr(b, $i1, $i2)) FROM t1
+    }
+  }] [list $hexresult]
+  do_test substr-$id.2 [subst {
+    execsql {
+      SELECT hex(substring(x'$hex', $i1, $i2))
+    }
+  }] [list $hexresult]
+}
+
+# Basic SUBSTR functionality
+#
+substr-test 1.1 abcdefg 1 1 a
+substr-test 1.2 abcdefg 2 1 b
+substr-test 1.3 abcdefg 1 2 ab
+substr-test 1.4 abcdefg 1 100 abcdefg
+substr-test 1.5 abcdefg 0 2 a
+substr-test 1.6 abcdefg -1 1 g
+substr-test 1.7 abcdefg -1 10 g
+substr-test 1.8 abcdefg -5 3 cde
+substr-test 1.9 abcdefg -7 3 abc
+substr-test 1.10 abcdefg -100 98 abcde
+substr-test 1.11 abcdefg 5 -1 d
+substr-test 1.12 abcdefg 5 -4 abcd
+substr-test 1.13 abcdefg 5 -5 abcd
+substr-test 1.14 abcdefg -5 -1 b
+substr-test 1.15 abcdefg -5 -2 ab
+substr-test 1.16 abcdefg -5 -3 ab
+substr-test 1.17 abcdefg 100 200 {}
+substr-test 1.18 abcdefg 200 100 {}
+
+# Make sure NULL is returned if any parameter is NULL
+#
+do_test substr-1.90 {
+  db eval {SELECT ifnull(substr(NULL,1,1),'nil')}
+} nil
+do_test substr-1.91 {
+  db eval {SELECT ifnull(substr(NULL,1),'nil')}
+} nil
+do_test substr-1.92 {
+  db eval {SELECT ifnull(substr('abcdefg',NULL,1),'nil')}
+} nil
+do_test substr-1.93 {
+  db eval {SELECT ifnull(substring('abcdefg',NULL),'nil')}
+} nil
+do_test substr-1.94 {
+  db eval {SELECT ifnull(substr('abcdefg',1,NULL),'nil')}
+} nil
+
+# Make sure everything works with long unicode characters
+#
+substr-test 2.1 \u1234\u2345\u3456 1 1 \u1234
+substr-test 2.2 \u1234\u2345\u3456 2 1 \u2345
+substr-test 2.3 \u1234\u2345\u3456 1 2 \u1234\u2345
+substr-test 2.4 \u1234\u2345\u3456 -1 1 \u3456
+substr-test 2.5 a\u1234b\u2345c\u3456c -5 3 b\u2345c
+substr-test 2.6 a\u1234b\u2345c\u3456c -2 -3 b\u2345c
+
+# Basic functionality for BLOBs
+#
+subblob-test 3.1 61626364656667 1 1 61
+subblob-test 3.2 61626364656667 2 1 62
+subblob-test 3.3 61626364656667 1 2 6162
+subblob-test 3.4 61626364656667 1 100 61626364656667
+subblob-test 3.5 61626364656667 0 2 61
+subblob-test 3.6 61626364656667 -1 1 67
+subblob-test 3.7 61626364656667 -1 10 67
+subblob-test 3.8 61626364656667 -5 3 636465
+subblob-test 3.9 61626364656667 -7 3 616263
+subblob-test 3.10 61626364656667 -100 98 6162636465
+subblob-test 3.11 61626364656667 100 200 {}
+subblob-test 3.12 61626364656667 200 100 {}
+
+# If these blobs were strings, then they would contain multi-byte
+# characters.  But since they are blobs, the substr indices refer
+# to bytes.
+#
+subblob-test 4.1 61E188B462E28D8563E3919663 1 1 61
+subblob-test 4.2 61E188B462E28D8563E3919663 2 1 E1
+subblob-test 4.3 61E188B462E28D8563E3919663 1 2 61E1
+subblob-test 4.4 61E188B462E28D8563E3919663 -2 1 96
+subblob-test 4.5 61E188B462E28D8563E3919663 -5 4 63E39196
+subblob-test 4.6 61E188B462E28D8563E3919663 -100 98 61E188B462E28D8563E391 
+
+# Two-argument SUBSTR
+#
+proc substr-2-test {id string idx result} {
+  db eval {
+    DELETE FROM t1;
+    INSERT INTO t1(t) VALUES($string)
+  }
+  do_test substr-$id.1 [subst {
+    execsql {
+      SELECT substr(t, $idx) FROM t1
+    }
+  }] [list $result]
+  set qstr '[string map {' ''} $string]'
+  do_test substr-$id.2 [subst {
+    execsql {
+      SELECT substring($qstr, $idx)
+    }
+  }] [list $result]
+}
+substr-2-test 5.1 abcdefghijklmnop 5 efghijklmnop
+substr-2-test 5.2 abcdef -5 bcdef
+
+finish_test
diff --git a/test/subtype1.test b/test/subtype1.test
new file mode 100644
index 0000000000000000000000000000000000000000..6d0df4fa6bbaad7e12e9a1766e44cd8110d37978
--- /dev/null
+++ b/test/subtype1.test
@@ -0,0 +1,87 @@
+# 2015-09-10
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements tests for sqlite3_value_subtype() and
+# sqlite3_result_subtype() interfaces.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_execsql_test subtype1-100 {
+  SELECT test_getsubtype('hello');
+} {0}
+do_execsql_test subtype1-110 {
+  SELECT test_getsubtype(test_setsubtype('hello',123));
+} {123}
+do_execsql_test subtype1-120 {
+  SELECT typeof(test_setsubtype('hello',123));
+} {text}
+do_execsql_test subtype1-130 {
+  SELECT test_setsubtype('hello',123);
+} {hello}
+
+# 2022-06-09
+# https://sqlite.org/forum/forumpost/3d9caa45cbe38c78
+#
+# Avoid carrying subtypes through into a subquery that has been flattened
+# or to which the outer WHERE clause has been pushed down.
+#
+reset_db
+do_execsql_test subtype1-200 {
+  CREATE TABLE t1(a); INSERT INTO t1 VALUES ('x');
+  CREATE VIEW t2(b) AS SELECT json(TRUE);
+  CREATE TABLE t3(b); INSERT INTO t3 VALUES(json(TRUE));
+}
+do_execsql_test subtype1-210 {
+  SELECT * FROM t3, t1 WHERE NOT json_quote(b);
+} {1 x}
+do_execsql_test subtype1-220 {
+  SELECT * FROM t2, t1 WHERE NOT json_quote(b);
+} {1 x}
+do_execsql_test subtype1-230 {
+  WITH t4(a) AS MATERIALIZED (SELECT json(1)) SELECT subtype(a) FROM t4;
+} {0}
+do_execsql_test subtype1-231 {
+  WITH t4(a) AS NOT MATERIALIZED (SELECT json(1)) SELECT subtype(a) FROM t4;
+} {0}
+
+# 2023-03-01
+# https://sqlite.org/forum/forumpost/37dd14a538
+# 
+# Additional tests to show that subtypes do not traverse subquery boundaries.
+#
+do_execsql_test subtype1-300 {
+  CREATE TABLE t0(c0);
+  INSERT INTO t0 VALUES ('1');
+  CREATE VIEW v0(c0) AS SELECT CASE WHEN 1 THEN json_patch('1', '1') END 
+                        FROM t0 GROUP BY t0.c0;
+  SELECT * FROM v0 WHERE json_quote(v0.c0) != '1';
+} {1}
+do_execsql_test subtype1-310 {
+  SELECT *, json_quote(y) FROM (SELECT +json('1') AS y);
+} {1 {"1"}}
+do_execsql_test subtype1-320 {
+  SELECT *, json_quote(y) FROM (SELECT +json('1') AS y)
+   WHERE json_quote(y)='"1"';
+} {1 {"1"}}
+
+# 2024-11-26
+# subtype survives if()
+#
+do_execsql_test subtype1-400 {
+  WITH t400(id,j) AS (VALUES
+    (1,'{a:{x:1,y:2},b:{x:3,y:4}}'),
+    (2,'not json')
+  )
+  SELECT id, subtype(if(json_valid(j,6),j->'a')) FROM t400;
+} {1 74 2 0}
+
+finish_test
diff --git a/test/superlock.test b/test/superlock.test
new file mode 100644
index 0000000000000000000000000000000000000000..10e7caa298183b7edae3de1339d6b88b651e1e37
--- /dev/null
+++ b/test/superlock.test
@@ -0,0 +1,268 @@
+# 2010 November 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+
+set testprefix superlock
+do_not_use_codec
+
+# Test organization:
+#
+#   1.*: Test superlock on a rollback database. Test that once the db is
+#        superlocked, it is not possible for a second client to read from
+#        it.
+#
+#   2.*: Test superlock on a WAL database with zero frames in the WAL file.
+#        Test that once the db is superlocked, it is not possible to read,
+#        write or checkpoint the db.
+#
+#   3.*: As 2.*, for WAL databases with one or more frames in the WAL.
+#
+#   4.*: As 2.*, for WAL databases with one or more checkpointed frames 
+#        in the WAL.
+#
+#   5.*: Test that a call to sqlite3demo_superlock() uses the busy handler
+#        correctly to wait for existing clients to clear on a WAL database.
+#        And returns SQLITE_BUSY if no busy handler is defined or the busy
+#        handler returns 0 before said clients relinquish their locks.
+#
+#   6.*: Test that if a superlocked WAL database is overwritten, existing
+#        clients run the recovery to build the new wal-index after the 
+#        superlock is released.
+#        
+#
+
+do_execsql_test 1.1 {
+  CREATE TABLE t1(a, b);
+  INSERT INTO t1 VALUES(1, 2);
+  PRAGMA journal_mode = DELETE;
+} {delete}
+
+ifcapable !wal {
+  finish_test
+  return
+}
+
+do_test 1.2 { sqlite3demo_superlock unlock test.db } {unlock}
+do_catchsql_test 1.3 { SELECT * FROM t1 } {1 {database is locked}}
+do_test 1.4 { unlock } {}
+
+do_execsql_test 2.1 { 
+  INSERT INTO t1 VALUES(3, 4);
+  PRAGMA journal_mode = WAL;
+} {wal}
+
+do_test 2.2 { sqlite3demo_superlock unlock test.db } {unlock}
+do_catchsql_test 2.3 { SELECT * FROM t1 }           {1 {database is locked}}
+do_catchsql_test 2.4 { INSERT INTO t1 VALUES(5, 6)} {1 {database is locked}}
+do_catchsql_test 2.5 { PRAGMA wal_checkpoint }      {0 {1 -1 -1}}
+do_test 2.6 { unlock } {}
+
+do_execsql_test 3.1 { INSERT INTO t1 VALUES(3, 4) } 
+
+do_test 3.2 { sqlite3demo_superlock unlock test.db } {unlock}
+do_catchsql_test 3.3 { SELECT * FROM t1 }           {1 {database is locked}}
+do_catchsql_test 3.4 { INSERT INTO t1 VALUES(5, 6)} {1 {database is locked}}
+do_catchsql_test 3.5 { PRAGMA wal_checkpoint }      {0 {1 -1 -1}}
+do_test 3.6 { unlock } {}
+
+# At this point the WAL file consists of a single frame only - written
+# by test case 3.1. If the ZERO_DAMAGE flag were not set, it would consist
+# of two frames - the frame written by 3.1 and a padding frame.
+do_execsql_test 4.1 { PRAGMA wal_checkpoint } {0 1 1}
+
+do_test 4.2 { sqlite3demo_superlock unlock test.db } {unlock}
+do_catchsql_test 4.3 { SELECT * FROM t1 }           {1 {database is locked}}
+do_catchsql_test 4.4 { INSERT INTO t1 VALUES(5, 6)} {1 {database is locked}}
+do_catchsql_test 4.5 { PRAGMA wal_checkpoint }      {0 {1 -1 -1}}
+do_test 4.6 { unlock } {}
+
+do_multiclient_test tn {
+
+  proc busyhandler {x} {
+    switch -- $x {
+      1 { sql1 "COMMIT" }
+      2 { sql2 "COMMIT" }
+      3 { sql3 "COMMIT" }
+    }
+    lappend ::busylist $x
+    return 1
+  }
+  set ::busylist [list]
+
+  do_test 5.$tn.1 {
+    sql1 {
+      CREATE TABLE t1(a, b);
+      PRAGMA journal_mode = WAL;
+      INSERT INTO t1 VALUES(1, 2);
+    }
+  } {wal}
+
+  do_test 5.$tn.2 {
+    sql1 { BEGIN ; SELECT * FROM t1 }
+    sql2 { BEGIN ; INSERT INTO t1 VALUES(3, 4) }
+    sql3 { BEGIN ; SELECT * FROM t1 }
+  } {1 2}
+
+  do_test 5.$tn.3 {
+    set ::busylist [list]
+    sqlite3demo_superlock unlock test.db "" busyhandler
+    set ::busylist
+  } {0 1 2 3}
+
+  do_test 5.$tn.4 { csql2 { SELECT * FROM t1 } } {1 {database is locked}}
+  do_test 5.$tn.5 { 
+    csql3 { INSERT INTO t1 VALUES(5, 6) } 
+  } {1 {database is locked}}
+  do_test 5.$tn.6 { csql1 "PRAGMA wal_checkpoint" } {0 {1 -1 -1}}
+
+  do_test 5.$tn.7 { unlock } {}
+
+  
+  do_test 5.$tn.8 {
+    sql1 { BEGIN ; SELECT * FROM t1 }
+    sql2 { BEGIN ; INSERT INTO t1 VALUES(5, 6) }
+    sql3 { BEGIN ; SELECT * FROM t1 }
+  } {1 2 3 4}
+
+  do_test 5.$tn.9 { 
+    list [catch {sqlite3demo_superlock unlock test.db} msg] $msg
+  } {1 {database is locked}}
+  do_test 5.$tn.10 { 
+    sql1 COMMIT
+    list [catch {sqlite3demo_superlock unlock test.db} msg] $msg
+  } {1 {database is locked}}
+  do_test 5.$tn.11 { 
+    sql2 COMMIT
+    list [catch {sqlite3demo_superlock unlock test.db} msg] $msg
+  } {1 {database is locked}}
+  do_test 5.$tn.12 { 
+    sql3 COMMIT
+    list [catch {sqlite3demo_superlock unlock test.db} msg] $msg
+  } {0 unlock}
+  unlock
+
+
+  do_test 5.$tn.13 { sql1 { SELECT * FROM t1 } } {1 2 3 4 5 6}
+  do_test 5.$tn.14 { sql2 { SELECT * FROM t1 } } {1 2 3 4 5 6}
+  do_test 5.$tn.15 { sqlite3demo_superlock unlock test.db } {unlock}
+  do_test 5.$tn.16 { unlock } {}
+  do_test 5.$tn.17 { sql2 { SELECT * FROM t1 } } {1 2 3 4 5 6}
+  do_test 5.$tn.18 { sql1 { SELECT * FROM t1 } } {1 2 3 4 5 6}
+  do_test 5.$tn.19 { sql2 { SELECT * FROM t1 } } {1 2 3 4 5 6}
+}
+
+proc read_content {file} {
+  if {[file exists $file]==0} {return ""}
+  set fd [open $file]
+  fconfigure $fd -translation binary
+  set content [read $fd]
+  close $fd
+  return $content
+}
+
+proc write_content {file content} {
+  set fd [open $file w+]
+  fconfigure $fd -translation binary
+  puts -nonewline $fd $content
+  close $fd
+}
+
+# Both $file1 and $file2 are database files. This function takes a 
+# superlock on each, then exchanges the content of the two files (i.e.
+# overwrites $file1 with the initial contents of $file2, and overwrites
+# $file2 with the initial contents of $file1). The contents of any WAL 
+# file is also exchanged.
+#
+proc db_swap {file1 file2} {
+  sqlite3demo_superlock unlock1 $file1
+  sqlite3demo_superlock unlock2 $file2
+
+  set db1 [read_content $file1]
+  set db2 [read_content $file2]
+  write_content $file1 $db2
+  write_content $file2 $db1
+
+  set wal1 [read_content ${file1}-wal]
+  set wal2 [read_content ${file2}-wal]
+  write_content ${file1}-wal $wal2
+  write_content ${file2}-wal $wal1
+
+  unlock1
+  unlock2
+}
+
+forcedelete test.db
+sqlite3 db  test.db
+do_execsql_test 6.1 {
+  ATTACH 'test.db2' AS aux;
+  PRAGMA aux.journal_mode = wal;
+  CREATE TABLE aux.t2(x, y);
+  INSERT INTO aux.t2 VALUES('a', 'b');
+  PRAGMA schema_version = 450;
+  DETACH aux;
+
+  PRAGMA main.journal_mode = wal;
+  CREATE TABLE t1(a, b);
+  INSERT INTO t1 VALUES(1, 2);
+  INSERT INTO t1 VALUES(3, 4);
+  SELECT * FROM t1;
+} {wal wal 1 2 3 4}
+
+
+db_swap test.db2 test.db
+do_catchsql_test 6.2 { SELECT * FROM t1 } {1 {no such table: t1}}
+do_catchsql_test 6.3 { SELECT * FROM t2 } {0 {a b}}
+
+db_swap test.db2 test.db
+do_catchsql_test 6.4 { SELECT * FROM t1 } {0 {1 2 3 4}}
+do_catchsql_test 6.5 { SELECT * FROM t2 } {1 {no such table: t2}}
+
+do_execsql_test  6.6 { PRAGMA wal_checkpoint } {0 0 0}
+
+db_swap test.db2 test.db
+do_catchsql_test 6.7 { SELECT * FROM t1 } {1 {no such table: t1}}
+do_catchsql_test 6.8 { SELECT * FROM t2 } {0 {a b}}
+
+db_swap test.db2 test.db
+do_catchsql_test 6.9 { SELECT * FROM t1 } {0 {1 2 3 4}}
+do_catchsql_test 6.10 { SELECT * FROM t2 } {1 {no such table: t2}}
+
+if {[nonzero_reserved_bytes]} {
+  # Vacuum with a size change is not allowed with the codec
+  do_execsql_test  6.11codec { 
+    PRAGMA journal_mode = delete;
+    VACUUM;
+    PRAGMA journal_mode = wal;
+    INSERT INTO t1 VALUES(5, 6);
+  } {delete wal}
+} else {
+  do_execsql_test  6.11 { 
+    PRAGMA journal_mode = delete;
+    PRAGMA page_size = 512;
+    VACUUM;
+    PRAGMA journal_mode = wal;
+    INSERT INTO t1 VALUES(5, 6);
+  } {delete wal}
+}
+
+db_swap test.db2 test.db
+do_catchsql_test 6.12 { SELECT * FROM t1 } {1 {no such table: t1}}
+do_catchsql_test 6.13 { SELECT * FROM t2 } {0 {a b}}
+
+db_swap test.db2 test.db
+do_catchsql_test 6.14 { SELECT * FROM t1 } {0 {1 2 3 4 5 6}}
+do_catchsql_test 6.15 { SELECT * FROM t2 } {1 {no such table: t2}}
+
+finish_test
diff --git a/test/swarmvtab.test b/test/swarmvtab.test
new file mode 100644
index 0000000000000000000000000000000000000000..b4b94487acc778eb21397819829306775b7d7957
--- /dev/null
+++ b/test/swarmvtab.test
@@ -0,0 +1,246 @@
+# 2017-07-15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is the "swarmvtab" extension
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix swarmvtab
+do_not_use_codec
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+load_static_extension db unionvtab
+
+set nFile $sqlite_open_file_count
+
+do_execsql_test 1.0 {
+  CREATE TABLE t0(a INTEGER PRIMARY KEY, b TEXT);
+  WITH s(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<400) 
+  INSERT INTO t0 SELECT i, hex(randomblob(50)) FROM s;
+
+  CREATE TABLE dir(f, t, imin, imax);
+}
+
+do_test 1.1 {
+  for {set i 0} {$i < 40} {incr i} {
+    set iMin [expr $i*10 + 1]
+    set iMax [expr $iMin+9]
+
+    forcedelete "test.db$i"
+    execsql [subst {
+      ATTACH 'test.db$i' AS aux;
+      CREATE TABLE aux.t$i (a INTEGER PRIMARY KEY, b TEXT);
+      INSERT INTO aux.t$i SELECT * FROM t0 WHERE a BETWEEN $iMin AND $iMax;
+      DETACH aux;
+      INSERT INTO dir VALUES('test.db$i', 't$i', $iMin, $iMax);
+    }]
+  }
+
+  execsql {
+    CREATE VIRTUAL TABLE temp.s1 USING swarmvtab('SELECT * FROM dir');
+  }
+} {}
+
+do_execsql_test 1.2 { 
+  DROP TABLE s1; 
+} {}
+
+do_execsql_test 1.3 {
+  CREATE VIRTUAL TABLE temp.s1 USING swarmvtab('SELECT * FROM dir');
+  SELECT count(*) FROM s1 WHERE rowid<50;
+} {49}
+
+proc do_compare_test {tn where} {
+  set sql [subst {
+    SELECT (SELECT group_concat(a || ',' || b, ',') FROM t0 WHERE $where) 
+           IS 
+           (SELECT group_concat(a || ',' || b, ',') FROM s1 WHERE $where)
+  }]
+
+  uplevel [list do_execsql_test $tn $sql 1]
+}
+
+do_compare_test 1.4.1 "rowid = 700"
+do_compare_test 1.4.2 "rowid = -1"
+do_compare_test 1.4.3 "rowid = 0"
+do_compare_test 1.4.4 "rowid = 55"
+do_compare_test 1.4.5 "rowid BETWEEN 20 AND 100"
+do_compare_test 1.4.6 "rowid > 350"
+do_compare_test 1.4.7 "rowid >= 350"
+do_compare_test 1.4.8 "rowid >= 200"
+do_compare_test 1.4.9 "1"
+
+# Multiple simultaneous cursors.
+#
+do_execsql_test 1.5.1.(5-seconds-or-so) {
+  SELECT count(*) FROM s1 a, s1 b WHERE b.rowid<=200;
+} {80000}
+do_execsql_test 1.5.2 {
+  SELECT count(*) FROM s1 a, s1 b, s1 c 
+  WHERE a.rowid=b.rowid AND b.rowid=c.rowid;
+} {400}
+
+# Empty source tables.
+#
+do_test 1.6.0 {
+  for {set i 0} {$i < 20} {incr i} {
+    sqlite3 db2 test.db$i
+    db2 eval " DELETE FROM t$i "
+    db2 close
+  }
+  db eval { DELETE FROM t0 WHERE rowid<=200 }
+} {}
+
+do_compare_test 1.6.1 "rowid = 700"
+do_compare_test 1.6.2 "rowid = -1"
+do_compare_test 1.6.3 "rowid = 0"
+do_compare_test 1.6.4 "rowid = 55"
+do_compare_test 1.6.5 "rowid BETWEEN 20 AND 100"
+do_compare_test 1.6.6 "rowid > 350"
+do_compare_test 1.6.7 "rowid >= 350"
+do_compare_test 1.6.8 "rowid >= 200"
+do_compare_test 1.6.9 "1"
+do_compare_test 1.6.10 "rowid >= 5"
+
+do_test 1.x {
+  set sqlite_open_file_count
+} [expr $nFile+9]
+
+do_test 1.y { db close } {}
+
+# Delete all the database files created above.
+#
+for {set i 0} {$i < 40} {incr i} { forcedelete "test.db$i" }
+
+#-------------------------------------------------------------------------
+# Test some error conditions:
+#
+#   2.1: Database file does not exist.
+#   2.2: Table does not exist.
+#   2.3: Table schema does not match.
+#   2.4: Syntax error in SELECT statement.
+#
+reset_db
+load_static_extension db unionvtab
+do_test 2.0.1 {
+  db eval {
+    CREATE TABLE t0(a INTEGER PRIMARY KEY, b TEXT);
+    WITH s(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<400) 
+      INSERT INTO t0 SELECT i, hex(randomblob(50)) FROM s;
+    CREATE TABLE dir(f, t, imin, imax);
+  }
+
+  for {set i 0} {$i < 40} {incr i} {
+    set iMin [expr $i*10 + 1]
+    set iMax [expr $iMin+9]
+
+    forcedelete "test.db$i"
+    db eval [subst {
+      ATTACH 'test.db$i' AS aux;
+      CREATE TABLE aux.t$i (a INTEGER PRIMARY KEY, b TEXT);
+      INSERT INTO aux.t$i SELECT * FROM t0 WHERE a BETWEEN $iMin AND $iMax;
+      DETACH aux;
+      INSERT INTO dir VALUES('test.db$i', 't$i', $iMin, $iMax);
+    }]
+  }
+  execsql {
+    CREATE VIRTUAL TABLE temp.s1 USING swarmvtab('SELECT * FROM dir');
+  }
+} {}
+
+do_test 2.0.2 {
+  forcedelete test.db5
+
+  sqlite3 db2 test.db15
+  db2 eval { DROP TABLE t15 }
+  db2 close
+
+  sqlite3 db2 test.db25
+  db2 eval { 
+    DROP TABLE t25;
+    CREATE TABLE t25(x, y, z PRIMARY KEY);
+  }
+  db2 close
+} {}
+
+do_catchsql_test 2.1 {
+  SELECT * FROM s1 WHERE rowid BETWEEN 1 AND 100;
+} {1 {unable to open database file}}
+do_catchsql_test 2.2 {
+  SELECT * FROM s1 WHERE rowid BETWEEN 101 AND 200;
+} {1 {no such rowid table: t15}}
+do_catchsql_test 2.3 {
+  SELECT * FROM s1 WHERE rowid BETWEEN 201 AND 300;
+} {1 {source table schema mismatch}}
+
+do_catchsql_test 2.4 {
+  CREATE VIRTUAL TABLE temp.x1 USING swarmvtab('SELECT * FROMdir');
+} {1 {sql error: near "FROMdir": syntax error}}
+do_catchsql_test 2.5 {
+  CREATE VIRTUAL TABLE temp.x1 USING swarmvtab('SELECT * FROMdir', 'fetchdb');
+} {1 {sql error: near "FROMdir": syntax error}}
+
+for {set i 0} {$i < 40} {incr i} {
+  forcedelete "test.db$i"
+}
+
+#-------------------------------------------------------------------------
+# Test the outcome of the fetch function throwing an exception.
+#
+proc fetch_db {file} {
+  error "fetch_db error!"
+}
+
+db func fetch_db fetch_db
+
+do_catchsql_test 3.1 {
+  CREATE VIRTUAL TABLE temp.xyz USING swarmvtab(
+    'VALUES
+        (''test.db1'', ''t1'', 1, 10),
+        (''test.db2'', ''t1'', 11, 20)
+    ', 'fetch_db_no_such_function'
+  );
+} {1 {sql error: no such function: fetch_db_no_such_function}}
+
+do_catchsql_test 3.2 {
+  CREATE VIRTUAL TABLE temp.xyz USING swarmvtab(
+    'VALUES
+        (''test.db1'', ''t1'', 1, 10),
+        (''test.db2'', ''t1'', 11, 20)
+    ', 'fetch_db'
+  );
+} {1 {fetch_db error!}}
+
+do_execsql_test 3.3.1 {
+  ATTACH 'test.db1' AS aux;
+  CREATE TABLE aux.t1(a INTEGER PRIMARY KEY, b);
+  INSERT INTO aux.t1 VALUES(1, NULL);
+  INSERT INTO aux.t1 VALUES(2, NULL);
+  INSERT INTO aux.t1 VALUES(9, NULL);
+  DETACH aux;
+  CREATE VIRTUAL TABLE temp.xyz USING swarmvtab(
+    'VALUES
+        (''test.db1'', ''t1'', 1, 10),
+        (''test.db2'', ''t1'', 11, 20)
+    ', 'fetch_db'
+  );
+} {}
+
+do_catchsql_test 3.3.2 { SELECT * FROM xyz } {1 {fetch_db error!}}
+
+
+
+finish_test
diff --git a/test/swarmvtab2.test b/test/swarmvtab2.test
new file mode 100644
index 0000000000000000000000000000000000000000..1cc7fbb378445e0573aaf4b5892f9425c02644af
--- /dev/null
+++ b/test/swarmvtab2.test
@@ -0,0 +1,75 @@
+# 2017-07-15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is the "swarmvtab" extension
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix swarmvtab2
+do_not_use_codec
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+
+db close
+foreach name [glob -nocomplain test*.db] {
+  forcedelete $name
+}
+sqlite3 db test.db
+load_static_extension db unionvtab
+proc create_database {filename} {
+  sqlite3 dbx $filename
+  set num [regsub -all {[^0-9]+} $filename {}]
+  set num [string trimleft $num 0]
+  set start [expr {$num*1000}]
+  set end [expr {$start+999}]
+  dbx eval {
+    CREATE TABLE t2(a INTEGER PRIMARY KEY,b);
+    WITH RECURSIVE c(x) AS (
+      VALUES($start) UNION ALL SELECT x+1 FROM c WHERE x<$end
+    )
+    INSERT INTO t2(a,b) SELECT x, printf('**%05d**',x) FROM c;
+  }
+  dbx close
+}
+db func create_database create_database
+do_execsql_test 100 {
+  CREATE TABLE t1(filename, tablename, istart, iend);
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<99)
+  INSERT INTO t1 SELECT printf('test%03d.db',x),'t2',x*1000,x*1000+999 FROM c;
+  CREATE VIRTUAL TABLE temp.v1 USING swarmvtab(
+    'SELECT * FROM t1', 'create_database'
+  );
+} {}
+do_execsql_test 110 {
+  SELECT b FROM v1 WHERE a=3875;
+} {**03875**}
+do_test 120 {
+  lsort [glob -nocomplain test?*.db]
+} {test001.db test003.db}
+do_execsql_test 130 {
+  SELECT b FROM v1 WHERE a BETWEEN 3999 AND 4000 ORDER BY a;
+} {**03999** **04000**}
+do_test 140 {
+  lsort [glob -nocomplain test?*.db]
+} {test001.db test003.db test004.db}
+do_execsql_test 150 {
+  SELECT b FROM v1 WHERE a>=99998;
+} {**99998** **99999**}
+do_test 160 {
+  lsort -dictionary [glob -nocomplain test?*.db]
+} {test001.db test003.db test004.db test099.db}
+
+finish_test
diff --git a/test/swarmvtab3.test b/test/swarmvtab3.test
new file mode 100644
index 0000000000000000000000000000000000000000..8ca247130862c838188c9bbd9d7925d3e423c225
--- /dev/null
+++ b/test/swarmvtab3.test
@@ -0,0 +1,235 @@
+# 2017-07-15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is the "swarmvtab" extension
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix swarmvtab3
+do_not_use_codec
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+load_static_extension db unionvtab
+
+set nFile $sqlite_open_file_count
+
+do_execsql_test 1.0 {
+  CREATE TEMP TABLE swarm(id, tbl, minval, maxval);
+}
+
+# Set up 100 databases with filenames "remote_test.dbN", where N is between
+# 0 and 99.
+do_test 1.1 {
+  for {set i 0} {$i < 100} {incr i} {
+    set file remote_test.db$i
+    forcedelete $file
+    forcedelete test.db$i
+    sqlite3 rrr $file
+    rrr eval {
+      CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+      INSERT INTO t1 VALUES($i, $i);
+    }
+    rrr close
+    db eval {
+      INSERT INTO swarm VALUES($i, 't1', $i, $i);
+    }
+    set ::dbcache(test.db$i) 0
+  }
+} {}
+
+proc missing_db {filename} {
+  set remote "remote_$filename"
+  forcedelete $filename
+  file copy $remote $filename
+}
+db func missing_db missing_db
+
+proc openclose_db {filename bClose} {
+  if {$bClose} {
+    incr ::dbcache($filename) -1
+  } else {
+    incr ::dbcache($filename) 1
+  }
+  if {$::dbcache($filename)==0} {
+    forcedelete $filename
+  }
+}
+db func openclose_db openclose_db
+
+proc check_dbcache {} {
+  set n 0
+  for {set i 0} {$i<100} {incr i} {
+    set exists [file exists test.db$i]
+    if {$exists!=($::dbcache(test.db$i)!=0)} {
+      error "inconsistent ::dbcache and disk ($i) - $exists"
+    }
+    incr n $exists
+  }
+  return $n
+}
+
+foreach {tn nMaxOpen cvt} {
+  1 5 {
+    CREATE VIRTUAL TABLE temp.s USING swarmvtab(
+        'SELECT :prefix || id, tbl, minval, minval FROM swarm',
+        :prefix='test.db',
+        missing=missing_db,
+        openclose=openclose_db,
+        maxopen=5
+    )
+  }
+
+  2 3 {
+    CREATE VIRTUAL TABLE temp.s USING swarmvtab(
+        'SELECT :prefix || id, tbl, minval, minval FROM swarm',
+        :prefix='test.db',
+        missing =       'missing_db',
+        openclose=[openclose_db],
+        maxopen = 3
+    )
+  }
+
+  3 1 {
+    CREATE VIRTUAL TABLE temp.s USING swarmvtab(
+        'SELECT :prefix||''.''||:suffix||id, tbl, minval, minval FROM swarm',
+        :prefix=test, :suffix=db,
+        missing =       'missing_db',
+        openclose=[openclose_db],
+        maxopen = 1
+    )
+  }
+
+} {
+  execsql { DROP TABLE IF EXISTS s }
+
+  do_execsql_test 1.$tn.1 $cvt
+
+  do_execsql_test 1.$tn.2 {
+    SELECT b FROM s WHERE a<10;
+  } {0 1 2 3 4 5 6 7 8 9}
+
+  do_test 1.$tn.3 { check_dbcache } $nMaxOpen
+
+  do_execsql_test 1.$tn.4 {
+    SELECT b FROM s WHERE (b%10)=0;
+  } {0 10 20 30 40 50 60 70 80 90}
+
+  do_test 1.$tn.5 { check_dbcache } $nMaxOpen
+}
+
+execsql { DROP TABLE IF EXISTS s }
+for {set i 0} {$i < 100} {incr i} {
+  forcedelete remote_test.db$i
+}
+
+#----------------------------------------------------------------------------
+#
+do_execsql_test 2.0 {
+  DROP TABLE IF EXISTS swarm;
+  CREATE TEMP TABLE swarm(file, tbl, minval, maxval, ctx);
+}
+
+catch { array unset ::dbcache }
+
+# Set up 100 databases with filenames "remote_test.dbN", where N is a
+# random integer between 0 and 1,000,000
+# 0 and 99.
+do_test 2.1 {
+  catch { array unset ctx_used } 
+  for {set i 0} {$i < 100} {incr i} {
+    while 1 {
+      set ctx [expr abs(int(rand() *1000000))]
+      if {[info exists ctx_used($ctx)]==0} break
+    }
+    set ctx_used($ctx) 1
+
+    set file test_remote.db$ctx
+    forcedelete $file
+    forcedelete test.db$i
+    sqlite3 rrr $file
+    rrr eval {
+      CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+      INSERT INTO t1 VALUES($i, $i);
+    }
+    rrr close
+    db eval {
+      INSERT INTO swarm VALUES('test.db' || $i, 't1', $i, $i, $file)
+    }
+    set ::dbcache(test.db$i) 0
+  }
+} {}
+
+proc missing_db {filename ctx} {
+  file copy $ctx $filename
+}
+db func missing_db missing_db
+
+proc openclose_db {filename ctx bClose} {
+  if {$bClose} {
+    incr ::dbcache($filename) -1
+  } else {
+    incr ::dbcache($filename) 1
+  }
+  if {$::dbcache($filename)==0} {
+    forcedelete $filename
+  }
+}
+db func openclose_db openclose_db
+
+proc check_dbcache {} {
+  set n 0
+  foreach k [array names ::dbcache] {
+    set exists [file exists $k]
+    if {$exists!=($::dbcache($k)!=0)} {
+      error "inconsistent ::dbcache and disk ($k) - $exists"
+    }
+    incr n $exists
+  }
+  return $n
+}
+
+foreach {tn nMaxOpen cvt} {
+  2 5 {
+    CREATE VIRTUAL TABLE temp.s USING swarmvtab(
+        'SELECT file, tbl, minval, minval, ctx FROM swarm',
+        missing=missing_db,
+        openclose=openclose_db,
+        maxopen=5
+    )
+  }
+} {
+  execsql { DROP TABLE IF EXISTS s }
+
+  do_execsql_test 3.$tn.1 $cvt
+
+  do_execsql_test 3.$tn.2 {
+    SELECT b FROM s WHERE a<10;
+  } {0 1 2 3 4 5 6 7 8 9}
+
+  do_test 3.$tn.3 { check_dbcache } $nMaxOpen
+
+  do_execsql_test 3.$tn.4 {
+    SELECT b FROM s WHERE (b%10)=0;
+  } {0 10 20 30 40 50 60 70 80 90}
+
+  do_test 3.$tn.5 { check_dbcache } $nMaxOpen
+}
+
+db close
+forcedelete {*}[glob test.db*]
+forcedelete {*}[glob test_remote.db*]
+
+finish_test
diff --git a/test/swarmvtabfault.test b/test/swarmvtabfault.test
new file mode 100644
index 0000000000000000000000000000000000000000..8cca3b2744ffc09a5c09c1561c47c001e0bb3f85
--- /dev/null
+++ b/test/swarmvtabfault.test
@@ -0,0 +1,65 @@
+# 2017-07-15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is error handling in the swarmvtab extension.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix swarmvtabfault
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+proc fetch_db {file} {
+  forcedelete $file
+  sqlite3 dbX $file
+  set rc [catch {
+    dbX eval { CREATE TABLE t1(a INTEGER PRIMARY KEY, b) }
+  } res]
+  dbX close
+  if {$rc!=0} {error $res}
+}
+
+forcedelete test.db1
+forcedelete test.db2
+
+do_execsql_test 1.0 {
+  ATTACH 'test.db1' AS aux;
+  CREATE TABLE aux.t1(a INTEGER PRIMARY KEY, b);
+  INSERT INTO aux.t1 VALUES(1, NULL);
+  INSERT INTO aux.t1 VALUES(2, NULL);
+  INSERT INTO aux.t1 VALUES(9, NULL);
+  DETACH aux;
+} {}
+
+faultsim_save_and_close
+do_faultsim_test 1.1 -faults oom* -prep {
+  faultsim_restore_and_reopen
+  db func fetch_db fetch_db
+  load_static_extension db unionvtab
+  db eval {
+    CREATE VIRTUAL TABLE temp.xyz USING swarmvtab(
+        'VALUES
+        ("test.db1", "t1", 1, 10),
+        ("test.db2", "t1", 11, 20)
+        ', 'fetch_db'
+    );
+  }
+} -body {
+  execsql { SELECT a FROM xyz }
+} -test {
+  faultsim_test_result {0 {1 2 9}} {1 {sql error: out of memory}}
+}
+
+finish_test
diff --git a/test/symlink.test b/test/symlink.test
new file mode 100644
index 0000000000000000000000000000000000000000..685cae5a41bdd05e901b93103a0e5c85550bad0f
--- /dev/null
+++ b/test/symlink.test
@@ -0,0 +1,238 @@
+# 2015 October 31
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing that SQLite can follow symbolic links.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix symlink
+
+# This only runs on unix.
+if {$::tcl_platform(platform)!="unix"} {
+  finish_test
+  return
+}
+
+# Ensure that test.db has been created.
+#
+do_execsql_test 1.0 {
+  CREATE TABLE t1(x, y);
+}
+
+# Test that SQLite follows symlinks when opening files.
+#
+forcedelete test.db2
+do_test 1.1 {
+  file link test.db2 test.db
+  sqlite3 db2 test.db2
+  sqlite3_db_filename db2 main
+} [file join [pwd] test.db]
+
+# But not with the -nofollow flag
+#
+do_test 1.1.2 {
+  db2 close
+  set rc [catch {sqlite3 db2 test.db2 -nofollow 1} msg]
+  lappend rc $msg
+} {1 {unable to open database file}}
+
+# If the main database is successfully opened with -nofollow, then -nofollow
+# is also used for ATTACH.
+#
+do_test 1.1.3 {
+  catch {db2 close}
+  sqlite3 db2 test.db -nofollow 1
+} {}
+do_test 1.1.4 {
+  catchsql {ATTACH 'test.db2' AS aux1;} db2
+} {1 {unable to open database: test.db2}}
+
+# Test that if the symlink points to a file that does not exists, it is
+# created when it is opened.
+#
+do_test 1.2.1 {
+  catch {db2 close}
+  db close
+  forcedelete test.db
+  file exists test.db
+} 0
+do_test 1.2.2 {
+  sqlite3 db2 test.db2
+  file exists test.db
+} 1
+do_test 1.2.3 {
+  sqlite3_db_filename db2 main
+} [file join [pwd] test.db]
+db2 close
+
+# Test that a loop of symlinks cannot be opened.
+#
+do_test 1.3 {
+  forcedelete test.db
+  # Note: Tcl [file link] command is too smart to create loops of symlinks.
+  exec ln -s test.db2 test.db
+  list [catch { sqlite3 db test.db } msg] $msg
+} {1 {unable to open database file}}
+
+# Test that overly large paths cannot be opened.
+#
+do_test 1.4 {
+  set name "test.db[string repeat x 502]"
+  list [catch { sqlite3 db $name } msg] $msg
+} {1 {unable to open database file}}
+do_test 1.5 {
+  set r [expr 510 - [string length test.db] - [string length [pwd]]]
+  set name "test.db[string repeat x $r]"
+  list [catch { sqlite3 db $name } msg] $msg
+} {1 {unable to open database file}}
+
+#-------------------------------------------------------------------------
+# Test that journal and wal files are created next to the real file,
+# not the symlink.
+#
+do_test 2.0 {
+  catch { db close }
+  catch { db2 close }
+  forcedelete test.db test.db2 test.db3
+  sqlite3 db test.db
+  execsql { CREATE TABLE t1(x) }
+  file link test.db2 test.db
+  file link test.db3 test.db2
+  set {} {}
+} {}
+
+foreach {tn f} {1 test.db2 2 test.db3} {
+  do_test 2.$tn.1 {
+    sqlite3 db2 $f
+    file exists test.db-journal
+  } 0
+  do_test 2.$tn.2 {
+    execsql {
+      BEGIN;
+        INSERT INTO t1 VALUES(1);
+    } db2
+    file exists test.db-journal
+  } [expr [atomic_batch_write test.db]==0]
+  do_test 2.$tn.3 {
+    list [file exists test2.db-journal] [file exists test3.db-journal]
+  } {0 0}
+  do_test 2.$tn.4 {
+    execsql {
+      COMMIT;
+      PRAGMA journal_mode = wal;
+      INSERT INTO t1 VALUES(2);
+    } db2
+    file exists test.db-wal
+  } 1
+  do_test 2.$tn.5 {
+    list [file exists test2.db-wal] [file exists test3.db-wal]
+  } {0 0}
+  do_execsql_test 2.$tn.6 {
+    SELECT * FROM t1;
+  } {1 2}
+  db2 close
+  do_execsql_test 2.$tn.7 {
+    DELETE FROM t1;
+    PRAGMA journal_mode = delete;
+  } delete
+}
+
+# Try to open a ridiculously long pathname.  Bug found by
+# Kostya Serebryany using libFuzzer on 2015-11-30.
+#
+do_test 3.1 {
+  db close
+  catch {sqlite3 db [string repeat [string repeat x 100]/ 6]} res
+  set res
+} {unable to open database file}
+
+#-------------------------------------------------------------------------
+# Test that relative symlinks that are not located in the cwd work.
+#
+do_test 4.1 {
+  forcedelete x y z
+  file mkdir x
+  file mkdir y
+  file mkdir z
+  sqlite3 db x/test.db
+  file link y/test.db ../x/test.db
+  file link z/test.db ../y/test.db
+  execsql {
+    PRAGMA journal_mode = wal;
+    CREATE TABLE t1(x, y);
+    INSERT INTO t1 VALUES('hello', 'world');
+  }
+} {wal}
+
+do_test 4.2.1 {
+  db close
+  sqlite3 db y/test.db
+  db eval { SELECT * FROM t1 }
+} {hello world}
+do_test 4.2.2 {
+  list [file exists x/test.db-wal] [file exists y/test.db-wal]
+} {1 0}
+
+do_test 4.3.1 {
+  db close
+  sqlite3 db z/test.db
+  db eval { SELECT * FROM t1 }
+} {hello world}
+do_test 4.3.2 {
+  list [file exists x/test.db-wal] [file exists y/test.db-wal] \
+       [file exists z/test.db-wal]
+} {1 0 0}
+
+do_test 4.4.0 {
+  forcedelete w
+  file mkdir w
+  file link w/test.db [file join [pwd] x/test.db] 
+  set {} {}
+} {}
+do_test 4.4.1 {
+  db close
+  sqlite3 db w/test.db
+  db eval { SELECT * FROM t1 }
+} {hello world}
+do_test 4.4.2 {
+  list [file exists x/test.db-wal] [file exists w/test.db-wal]
+} {1 0}
+
+#-------------------------------------------------------------------------
+# Check that extra ".." in a path are ignored.
+reset_db
+do_execsql_test 5.0 {
+  CREATE TABLE xyz(x, y, z);
+  INSERT INTO xyz VALUES(1, 2, 3);
+}
+
+set path [pwd]
+set nLink [llength [split $path /]]
+set path "[string repeat ../ [expr $nLink*2]]..${path}/test.db"
+
+sqlite3 db2 $path
+do_execsql_test -db db2 5.1 {
+  SELECT * FROM xyz;
+} {1 2 3}
+db close
+
+forcedelete test.db2
+file link test.db2 $path
+sqlite3 db2 test.db2
+do_execsql_test -db db2 5.2 {
+  SELECT * FROM xyz;
+} {1 2 3}
+forcedelete test.db2
+
+
+
+finish_test
diff --git a/test/symlink2.test b/test/symlink2.test
new file mode 100644
index 0000000000000000000000000000000000000000..9a2237e4c0e0e3f33fa9a7e1169906a1af933b13
--- /dev/null
+++ b/test/symlink2.test
@@ -0,0 +1,118 @@
+# 2019 November 18
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing that SQLite can follow symbolic links.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix symlink2
+
+# This only runs on Windows.
+if {$::tcl_platform(platform)!="windows"} {
+  finish_test
+  return
+}
+
+proc createWin32Symlink { link target } {
+  exec -- $::env(ComSpec) /c mklink \
+      [file nativename $link] [file nativename $target]
+  return ""
+}
+
+proc deleteWin32Symlink { link } {
+  exec -- $::env(ComSpec) /c del [file nativename $link]
+  return ""
+}
+
+proc canCreateWin32Symlink {} {
+  set link [file join $::testdir lnk[pid].sym]
+  if {[file exists $link]} { return 0 }
+  set target [info nameofexecutable]
+  if {[catch {createWin32Symlink $link $target}] == 0} {
+    deleteWin32Symlink $link
+    return 1
+  }
+  return 0
+}
+
+# Creating symlinks may require administrator privileges on Windows.
+if {![canCreateWin32Symlink]} {
+  finish_test
+  return
+}
+
+# Ensure that test.db has been created.
+#
+do_execsql_test 1.0 {
+  CREATE TABLE t1(x, y);
+  INSERT INTO t1 VALUES(1,9999);
+}
+
+forcedelete link.db
+do_test 2.0 {
+  createWin32Symlink link.db test.db
+} {}
+
+do_test 2.1 {
+  file exists test.db
+} {1}
+
+do_test 2.2 {
+  file exists link.db
+} {1}
+
+do_test 3.1 {
+  execsql { SELECT x, y FROM t1; } db
+} {1 9999}
+
+do_test 3.2 {
+  sqlite3 db2 link.db
+  execsql { SELECT x, y FROM t1; } db2
+} {1 9999}
+
+do_test 3.3 {
+  sqlite3 db3 test.db -nofollow true
+  execsql { SELECT x, y FROM t1; } db3
+} {1 9999}
+
+do_test 3.4 {
+  db3 close
+} {}
+
+# The -nofollow option does not work on Windows
+do_test 3.5 {
+  list [catch {
+    sqlite3 db4 link.db -nofollow true
+    execsql { SELECT x, y FROM t1; } db4
+  } res] $res
+} {0 {1 9999}}
+
+catch {db4 close}
+
+do_test 4.0 {
+  db2 close
+  deleteWin32Symlink link.db
+} {}
+
+do_test 4.1 {
+  file exists test.db
+} {1}
+
+do_test 4.2 {
+  file exists link.db
+} {0}
+
+do_test 5.1 {
+  execsql { SELECT x, y FROM t1; } db
+} {1 9999}
+
+finish_test
diff --git a/test/sync.test b/test/sync.test
new file mode 100644
index 0000000000000000000000000000000000000000..023425e6b1dac6b540ff6fce7c747e3f7db26d5c
--- /dev/null
+++ b/test/sync.test
@@ -0,0 +1,105 @@
+# 2005 August 28
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that fsync is disabled when
+# pragma synchronous=off even for multi-database commits.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+#
+# These tests are only applicable when pager pragma are
+# enabled. Also, since every test uses an ATTACHed database, they
+# are only run when ATTACH is enabled.
+#
+ifcapable !pager_pragmas||!attach {
+  finish_test
+  return
+}
+if {[atomic_batch_write test.db]} {
+  finish_test
+  return
+}
+
+set sqlite_sync_count 0
+proc cond_incr_sync_count {adj} {
+  global sqlite_sync_count
+  if {$::tcl_platform(platform) == "windows"} {
+    incr sqlite_sync_count $adj
+  } else {
+    ifcapable !dirsync {
+      incr sqlite_sync_count $adj
+    }
+  }
+}
+
+do_test sync-1.1 {
+  set sqlite_sync_count 0
+  forcedelete test2.db
+  forcedelete test2.db-journal
+  execsql {
+    PRAGMA fullfsync=OFF;
+    CREATE TABLE t1(a,b);
+    ATTACH DATABASE 'test2.db' AS db2;
+    CREATE TABLE db2.t2(x,y);
+  }
+  cond_incr_sync_count 2
+  set sqlite_sync_count
+} 8
+ifcapable pager_pragmas {
+  do_test sync-1.2 {
+    set sqlite_sync_count 0
+    execsql {
+      PRAGMA main.synchronous=on;
+      PRAGMA db2.synchronous=on;
+      BEGIN;
+      INSERT INTO t1 VALUES(1,2);
+      INSERT INTO t2 VALUES(3,4);
+      COMMIT;
+    }
+    cond_incr_sync_count 4
+    set sqlite_sync_count
+  } 9
+}
+do_test sync-1.3 {
+  set sqlite_sync_count 0
+  execsql {
+    PRAGMA main.synchronous=full;
+    PRAGMA db2.synchronous=full;
+    BEGIN;
+    INSERT INTO t1 VALUES(3,4);
+    INSERT INTO t2 VALUES(5,6);
+    COMMIT;
+  }
+  cond_incr_sync_count 4
+  set sqlite_sync_count
+} 11
+ifcapable pager_pragmas {
+if {[permutation]!="journaltest"} {
+  do_test sync-1.4 {
+    set sqlite_sync_count 0
+    execsql {
+      PRAGMA main.synchronous=off;
+      PRAGMA db2.synchronous=off;
+      BEGIN;
+      INSERT INTO t1 VALUES(5,6);
+      INSERT INTO t2 VALUES(7,8);
+      COMMIT;
+    }
+    set sqlite_sync_count
+  } 0
+}
+}
+
+
+finish_test
diff --git a/test/sync2.test b/test/sync2.test
new file mode 100644
index 0000000000000000000000000000000000000000..89e66c84552700f174b813a279795198896f730a
--- /dev/null
+++ b/test/sync2.test
@@ -0,0 +1,161 @@
+# 2017 March 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# Specificly, it tests that "PRAGMA synchronous" appears to work.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix sync2
+
+#
+# These tests are only applicable when pager pragma are
+# enabled. Also, since every test uses an ATTACHed database, they
+# are only run when ATTACH is enabled.
+#
+ifcapable !pager_pragmas||!attach||!dirsync {
+  finish_test
+  return
+}
+if {$::tcl_platform(platform)!="unix" 
+  || [permutation] == "journaltest"
+  || [permutation] == "inmemory_journal"
+  || [atomic_batch_write test.db] 
+} {
+  finish_test
+  return
+}
+
+proc execsql_sync {sql} {
+  set s $::sqlite_sync_count
+  set res [execsql $sql]
+  concat [expr $::sqlite_sync_count-$s] $res
+}
+
+proc do_execsql_sync_test {tn sql res} {
+  uplevel [list do_test $tn [list execsql_sync $sql] [list {*}$res]]
+}
+
+#-----------------------------------------------------------------------
+# Tests for journal mode.
+#
+sqlite3 db test.db
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b);
+  INSERT INTO t1 VALUES(1, 2);
+}
+
+do_execsql_sync_test 1.1 { INSERT INTO t1 VALUES(3, 4) } 4
+
+# synchronous=normal. So, 1 sync on the directory, 1 on the journal, 1 
+# on the db file. 3 in total.
+do_execsql_test      1.2.1 { PRAGMA main.synchronous = NORMAL }
+do_execsql_test      1.2.2 { PRAGMA main.synchronous }     1
+do_execsql_sync_test 1.2.3 { INSERT INTO t1 VALUES(5, 6) } 3
+
+# synchronous=off. No syncs.
+do_execsql_test      1.3.1 { PRAGMA main.synchronous = OFF }
+do_execsql_test      1.3.2 { PRAGMA main.synchronous }     0
+do_execsql_sync_test 1.3.3 { INSERT INTO t1 VALUES(7, 8) } 0
+ 
+# synchronous=full, journal_mode=delete. So, 1 sync on the directory,
+# 2 on the journal, 1 on the db file. 4 in total.
+do_execsql_test      1.4.1 { PRAGMA main.synchronous = FULL }
+do_execsql_test      1.4.2 { PRAGMA main.synchronous }      2
+do_execsql_sync_test 1.4.3 { INSERT INTO t1 VALUES(9, 10) } 4
+
+#-----------------------------------------------------------------------
+# Tests for wal mode.
+#
+do_execsql_test      1.5 { PRAGMA journal_mode = wal } {wal}
+
+# sync=full, journal_mode=wal. One sync on the directory, two on the 
+# wal file.
+do_execsql_sync_test 1.6 { INSERT INTO t1 VALUES(11, 12) } 3
+
+# One sync on the wal file.
+do_execsql_sync_test 1.7 { INSERT INTO t1 VALUES(13, 14) } 1
+
+# No syncs.
+do_execsql_test      1.8.1 { PRAGMA main.synchronous = NORMAL }
+do_execsql_test      1.8.2 { PRAGMA main.synchronous }          1
+do_execsql_sync_test 1.8.3 { INSERT INTO t1 VALUES(15, 16) }    0
+
+# One sync on wal file, one on the db file.
+do_execsql_sync_test 1.9   { PRAGMA wal_checkpoint }  {2 0 3 3}
+
+# No syncs.
+do_execsql_test      1.10.1 { PRAGMA main.synchronous = OFF }
+do_execsql_test      1.10.2 { PRAGMA main.synchronous }          0
+do_execsql_sync_test 1.10.3 { INSERT INTO t1 VALUES(17, 18) }    0
+
+#-----------------------------------------------------------------------
+# Tests for the compile time settings SQLITE_DEFAULT_SYNCHRONOUS and
+# SQLITE_DEFAULT_WAL_SYNCHRONOUS. These tests only run if the former
+# is set to "2" and the latter to "1". This is not the default, but
+# it is currently the recommended configuration.
+#
+#   https://sqlite.org/compile.html#recommended_compile_time_options
+#
+if {$SQLITE_DEFAULT_SYNCHRONOUS==2 && $SQLITE_DEFAULT_WAL_SYNCHRONOUS==1} {
+
+  db close
+  sqlite3 db test.db
+
+  # Wal mode, sync=normal. The first transaction does one sync on directory,
+  # one on the wal file. The second does no syncs.
+  do_execsql_sync_test 1.11.1 { INSERT INTO t1 VALUES(19, 20) } 2
+  do_execsql_sync_test 1.11.2 { INSERT INTO t1 VALUES(21, 22) } 0
+  do_execsql_test 1.11.3      { PRAGMA main.synchronous }       1
+
+  # One sync on wal file, one on the db file.
+  do_execsql_sync_test 1.12   { PRAGMA wal_checkpoint }  {2 0 2 2}
+
+  # First transaction syncs the wal file once, the second not at all.
+  # one on the wal file. The second does no syncs.
+  do_execsql_sync_test 1.13.1 { INSERT INTO t1 VALUES(22, 23) } 1
+  do_execsql_sync_test 1.13.2 { INSERT INTO t1 VALUES(24, 25) } 0
+
+  do_execsql_test 1.14 { PRAGMA journal_mode = delete } {delete}
+  
+  # Delete mode, sync=full. The first transaction does one sync on 
+  # directory, two on the journal file, one on the db. The second does 
+  # the same.
+  do_execsql_sync_test 1.15.1 { INSERT INTO t1 VALUES(26, 27) } 4
+  do_execsql_sync_test 1.15.2 { INSERT INTO t1 VALUES(28, 29) } 4
+  do_execsql_test 1.15.3      { PRAGMA main.synchronous }       2
+
+  # Switch back to wal mode.
+  do_execsql_test 1.16 { PRAGMA journal_mode = wal } {wal}
+
+  do_execsql_sync_test 1.17.1 { INSERT INTO t1 VALUES(30, 31) } 2
+  do_execsql_sync_test 1.17.2 { INSERT INTO t1 VALUES(32, 33) } 0
+  do_execsql_test 1.17.3      { PRAGMA main.synchronous }       1
+
+  # Now set synchronous=off, then switch back to delete mode. Check
+  # that the db handle is still using synchronous=off.
+  do_execsql_test 1.18.3      { PRAGMA main.synchronous=off }
+  do_execsql_test 1.18 { PRAGMA journal_mode = delete } {delete}
+
+  do_execsql_sync_test 1.19.1 { INSERT INTO t1 VALUES(34, 35) } 0
+  do_execsql_sync_test 1.19.2 { INSERT INTO t1 VALUES(36, 37) } 0
+  do_execsql_test 1.19.3      { PRAGMA main.synchronous }       0
+
+  # Close and reopen the db. Back to synchronous=normal.
+  db close
+  sqlite3 db test.db
+  do_execsql_sync_test 1.20.1 { INSERT INTO t1 VALUES(38, 39) } 4
+  do_execsql_sync_test 1.20.2 { INSERT INTO t1 VALUES(40, 41) } 4
+  do_execsql_test 1.20.3      { PRAGMA main.synchronous }       2
+}
+
+finish_test
diff --git a/test/syscall.test b/test/syscall.test
new file mode 100644
index 0000000000000000000000000000000000000000..fe4a4177fe6f33f8f9e111d279e5ed38272d88d4
--- /dev/null
+++ b/test/syscall.test
@@ -0,0 +1,278 @@
+# 2011 March 29
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+source $testdir/malloc_common.tcl
+
+if {[llength [info commands test_syscall]]==0} {
+  finish_test
+  return
+} 
+
+if {[test_syscall defaultvfs] != "unix"} {
+  finish_test
+  return
+}
+set testprefix syscall
+
+#-------------------------------------------------------------------------
+# Tests for the xSetSystemCall method.
+#
+do_test 1.1.1 {
+  list [catch { test_syscall reset open } msg] $msg
+} {0 {}}
+do_test 1.1.2 {
+  list [catch { test_syscall reset nosuchcall } msg] $msg
+} {1 SQLITE_NOTFOUND}
+do_test 1.1.3 {
+  list [catch { test_syscall reset open } msg] $msg
+} {0 {}}
+do_test 1.1.4 {
+  list [catch { test_syscall reset ""} msg] $msg
+} {1 SQLITE_NOTFOUND}
+
+do_test 1.2 { test_syscall reset } {}
+
+do_test 1.3.1 { test_syscall install {open getcwd access} } {}
+do_test 1.3.2 { test_syscall reset } {}
+
+#-------------------------------------------------------------------------
+# Tests for the xGetSystemCall method.
+#
+do_test 2.1.1 { test_syscall exists open } 1
+do_test 2.1.2 { test_syscall exists nosuchcall } 0
+
+#-------------------------------------------------------------------------
+# Tests for the xNextSystemCall method.
+#
+foreach s {
+    open close access getcwd stat fstat ftruncate
+    fcntl read pread write pwrite fchmod fallocate
+    pread64 pwrite64 unlink openDirectory mkdir rmdir 
+    statvfs fchown geteuid umask mmap munmap mremap
+    getpagesize readlink lstat ioctl
+} {
+  if {[test_syscall exists $s]} {lappend syscall_list $s}
+}
+do_test 3.1 { lsort [test_syscall list] } [lsort $syscall_list]
+
+#-------------------------------------------------------------------------
+# This test verifies that if a call to open() fails and errno is set to
+# EINTR, the call is retried. If it succeeds, execution continues as if
+# nothing happened. 
+#
+test_syscall reset
+forcedelete test.db2
+do_execsql_test 4.1 {
+  CREATE TABLE t1(x, y);
+  INSERT INTO t1 VALUES(1, 2);
+  ATTACH 'test.db2' AS aux;
+  CREATE TABLE aux.t2(x, y);
+  INSERT INTO t2 VALUES(3, 4);
+}
+
+db_save_and_close
+test_syscall install open
+foreach jrnl [list wal delete] {
+  for {set i 1} {$i < 20} {incr i} {
+    db_restore_and_reopen
+    test_syscall fault $i 0
+    test_syscall errno open EINTR
+  
+    do_test 4.2.$jrnl.$i {
+      sqlite3 db test.db
+      execsql { ATTACH 'test.db2' AS aux }
+      execsql "PRAGMA main.journal_mode = $jrnl"
+      execsql "PRAGMA aux.journal_mode = $jrnl"
+      execsql {
+        BEGIN;
+          INSERT INTO t1 VALUES(5, 6);
+          INSERT INTO t2 VALUES(7, 8);
+        COMMIT;
+      }
+
+      db close
+      sqlite3 db test.db
+      execsql { ATTACH 'test.db2' AS aux }
+      execsql {
+        SELECT * FROM t1;
+        SELECT * FROM t2;
+      }
+    } {1 2 5 6 3 4 7 8}
+  }
+}
+
+#-------------------------------------------------------------------------
+# This test verifies that closing database handles does not drop locks
+# held by other database handles in the same process on the same file.
+#
+# The os_unix.c module has to take precautions to prevent this as the
+# close() system call drops locks held by other file-descriptors on the
+# same file. From the Linux man page:
+#
+#   close() closes a file descriptor, so that it no longer refers to any file
+#   and may be reused. Any record locks (see fcntl(2)) held on the file it 
+#   was associated with, and owned by the process, are removed (regardless 
+#   of the file descriptor that was used to obtain the lock).
+#
+catch { db close }
+forcedelete test.db test.db2
+
+do_multiclient_test tn {
+  code1 {
+    sqlite3 dbX1 test.db
+    sqlite3 dbX2 test.db
+  }
+
+  do_test syscall-5.$tn.1 {
+    sql1 {
+      CREATE TABLE t1(a, b);
+      INSERT INTO t1 VALUES(1, 2);
+      BEGIN;
+        INSERT INTO t1 VALUES(3, 4);
+    }
+  } {}
+
+  do_test syscall-5.$tn.2 { sql2 { SELECT * FROM t1 } } {1 2}
+  do_test syscall-5.$tn.3 { 
+    csql2 { INSERT INTO t1 VALUES(5, 6) }
+  } {1 {database is locked}}
+
+  do_test syscall-5.$tn.4 { 
+    code1 {
+      dbX1 close
+      dbX2 close
+    }
+  } {}
+
+  do_test syscall-5.$tn.5 { 
+    csql2 { INSERT INTO t1 VALUES(5, 6) }
+  } {1 {database is locked}}
+
+  do_test syscall-5.$tn.6 { sql1 { COMMIT } } {}
+
+  do_test syscall-5.$tn.7 { 
+    csql2 { INSERT INTO t1 VALUES(5, 6) }
+  } {0 {}}
+}
+
+catch {db close}
+do_test 6.1 {
+  sqlite3 db1 test.db1
+  sqlite3 db2 test.db2
+  sqlite3 db3 test.db3
+  sqlite3 dbM ""
+
+  db2 close
+  db3 close
+  dbM close
+  db1 close
+} {}
+
+do_test 6.2 {
+  sqlite3 db test.db
+  execsql {
+    PRAGMA temp_store = file;
+
+    PRAGMA main.cache_size = 10;
+    PRAGMA temp.cache_size = 10;
+    CREATE TABLE temp.tt(a, b);
+    INSERT INTO tt VALUES(randomblob(500), randomblob(600));
+    INSERT INTO tt SELECT randomblob(500), randomblob(600) FROM tt;
+    INSERT INTO tt SELECT randomblob(500), randomblob(600) FROM tt;
+    INSERT INTO tt SELECT randomblob(500), randomblob(600) FROM tt;
+    INSERT INTO tt SELECT randomblob(500), randomblob(600) FROM tt;
+    INSERT INTO tt SELECT randomblob(500), randomblob(600) FROM tt;
+    INSERT INTO tt SELECT randomblob(500), randomblob(600) FROM tt;
+    INSERT INTO tt SELECT randomblob(500), randomblob(600) FROM tt;
+    INSERT INTO tt SELECT randomblob(500), randomblob(600) FROM tt;
+  }
+
+  db close
+} {}
+
+#-------------------------------------------------------------------------
+# Test that a database file a single byte in size is treated as an empty
+# file. Whereas a file 2 bytes or larger might be considered corrupt.
+#
+catch { db close }
+forcedelete test.db test.db2
+
+proc create_db_file {nByte} {
+  set fd [open test.db w]
+  fconfigure $fd -translation binary
+  puts -nonewline $fd [string range "xSQLite" 1 $nByte]
+  close $fd
+}
+
+foreach {nByte res} {
+  1      {0 {}}
+  2      {1 {file is not a database}}
+  3      {1 {file is not a database}}
+} {
+  do_test 7.$nByte {
+    create_db_file $nByte
+    list [catch {
+      sqlite3 db test.db
+      execsql { CREATE TABLE t1(a, b) }
+    } msg] $msg
+  } $res
+  catch { db close }
+}
+
+#-------------------------------------------------------------------------
+# 
+catch { db close }
+forcedelete test.db test.db2
+
+do_test 8.1 {
+  sqlite3 db test.db
+  file_control_chunksize_test db main 4096
+  file size test.db
+} {0}
+foreach {tn hint size} {
+  1  1000    4096 
+  2  1000    4096 
+  3  3000    4096 
+  4  4096    4096 
+  5  4197    8192 
+} {
+  do_test 8.2.$tn {
+    file_control_sizehint_test db main $hint
+    file size test.db
+  } $size
+}
+
+do_test 8.3 {
+  db close
+  forcedelete test.db test.db2
+  sqlite3 db test.db
+  file_control_chunksize_test db main 16
+  file size test.db
+} {0}
+foreach {tn hint size} {
+  1  5       16 
+  2  13      16 
+  3  45      48 
+  4  48      48 
+  5  49      64 
+} {
+  do_test 8.4.$tn {
+    file_control_sizehint_test db main $hint
+    file size test.db
+  } $size
+}
+
+test_syscall reset
+finish_test
diff --git a/test/sysfault.test b/test/sysfault.test
new file mode 100644
index 0000000000000000000000000000000000000000..4c3d34dbb95d7b1df6ee3dd000486e3274bcc84c
--- /dev/null
+++ b/test/sysfault.test
@@ -0,0 +1,278 @@
+# 2011 March 28
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+source $testdir/malloc_common.tcl
+
+if {[llength [info commands test_syscall]]==0} {
+  finish_test
+  return
+} 
+
+set testprefix sysfault
+
+set FAULTSIM(vfsfault-transient) [list             \
+  -injectinstall   vfsfault_install                \
+  -injectstart     vfsfault_injectstart_t          \
+  -injectstop      vfsfault_injectstop             \
+  -injecterrlist   {}                              \
+  -injectuninstall {test_syscall uninstall}        \
+]
+set FAULTSIM(vfsfault-persistent) [list            \
+  -injectinstall   vfsfault_install                \
+  -injectstart     vfsfault_injectstart_p          \
+  -injectstop      vfsfault_injectstop             \
+  -injecterrlist   {}                              \
+  -injectuninstall {test_syscall uninstall}        \
+]
+
+proc vfsfault_injectstart_t {iFail} { test_syscall fault $iFail 0 }
+proc vfsfault_injectstart_p {iFail} { test_syscall fault $iFail 1 }
+proc vfsfault_injectstop    {}      { test_syscall fault }
+
+faultsim_save_and_close
+
+
+set open_and_write_body {
+  sqlite3 db test.db
+  db eval {
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, 2);
+    PRAGMA journal_mode = WAL;
+    INSERT INTO t1 VALUES(3, 4);
+    SELECT * FROM t1;
+    CREATE TEMP TABLE t2(x);
+    INSERT INTO t2 VALUES('y');
+  }
+}
+
+proc vfsfault_install {} { test_syscall install {open getcwd} }
+do_faultsim_test 1 -faults vfsfault-* -prep {
+  faultsim_restore
+} -body $open_and_write_body -test {
+  faultsim_test_result {0 {wal 1 2 3 4}}       \
+    {1 {unable to open database file}}         \
+    {1 {attempt to write a readonly database}}
+}
+
+#-------------------------------------------------------------------------
+# Errors in the fstat() function when opening and writing a file. Cases
+# where fstat() fails and sets errno to ENOMEM and EOVERFLOW are both
+# tested. EOVERFLOW is interpreted as meaning that a file on disk is
+# too large to be opened by the OS.
+#
+foreach {tn errno errlist} {
+  1 ENOMEM       {{disk I/O error}}
+  2 EOVERFLOW    {{disk I/O error} {large file support is disabled}}
+} {
+  proc vfsfault_install {} { test_syscall install fstat }
+  set errs [list]
+  foreach e $errlist { lappend errs [list 1 $e] }
+  do_faultsim_test 1.2.$tn -faults vfsfault-* -prep {
+    faultsim_restore
+  } -body "
+    test_syscall errno fstat $errno
+    $open_and_write_body 
+  " -test "
+    faultsim_test_result {0 {wal 1 2 3 4}} $errs
+  "
+}
+
+#-------------------------------------------------------------------------
+# Various errors in locking functions. 
+#
+foreach vfs {unix unix-excl} {
+  foreach {tn errno errlist} {
+    1 EAGAIN       {{database is locked} {disk I/O error}}
+    2 ETIMEDOUT    {{database is locked} {disk I/O error}}
+    3 EBUSY        {{database is locked} {disk I/O error}}
+    4 EINTR        {{database is locked} {disk I/O error}}
+    5 ENOLCK       {{database is locked} {disk I/O error}}
+    6 EACCES       {{database is locked} {disk I/O error}}
+    7 EPERM        {{access permission denied} {disk I/O error}}
+    8 EDEADLK      {{disk I/O error}}
+    9 ENOMEM       {{disk I/O error}}
+  } {
+    proc vfsfault_install {} { test_syscall install fcntl }
+    set errs [list]
+    foreach e $errlist { lappend errs [list 1 $e] }
+  
+    set body [string map [list %VFS% $vfs] {
+      sqlite3 db test.db
+      db eval {
+        CREATE TABLE t1(a, b);
+        INSERT INTO t1 VALUES(1, 2);
+      }
+      set fd [open test.db-journal w]
+      puts $fd "hello world"
+      close $fd
+      sqlite3 db test.db -vfs %VFS%
+      db eval {
+        SELECT * FROM t1;
+      }
+    }]
+  
+    do_faultsim_test 1.3.$vfs.$tn -faults vfsfault-* -prep {
+      faultsim_restore
+    } -body "
+      test_syscall errno fcntl $errno
+      $body
+    " -test "
+      faultsim_test_result {0 {1 2}} $errs
+    "
+  }
+}
+
+#-------------------------------------------------------------------------
+# Check that a single EINTR error does not affect processing.
+#
+proc vfsfault_install {} { 
+  test_syscall reset
+  test_syscall install {open ftruncate close read pread pread64 write fallocate}
+}
+
+forcedelete test.db test.db2
+sqlite3 db test.db
+do_test 2.setup {
+  execsql {
+    CREATE TABLE t1(a, b, c, PRIMARY KEY(a));
+    INSERT INTO t1 VALUES('abc', 'def', 'ghi');
+    ATTACH 'test.db2' AS 'aux';
+    CREATE TABLE aux.t2(x);
+    INSERT INTO t2 VALUES(1);
+  }
+  faultsim_save_and_close
+} {}
+
+do_faultsim_test 2.1 -faults vfsfault-transient -prep {
+  catch { db close }
+  faultsim_restore
+} -body {
+  test_syscall errno open      EINTR
+  test_syscall errno ftruncate EINTR
+  test_syscall errno close     EINTR
+  test_syscall errno read      EINTR
+  test_syscall errno pread     EINTR
+  test_syscall errno pread64   EINTR
+  test_syscall errno write     EINTR
+  test_syscall errno fallocate EINTR
+
+  sqlite3 db test.db
+  file_control_chunksize_test db main 8192
+
+  set res [db eval {
+    ATTACH 'test.db2' AS 'aux';
+    SELECT * FROM t1;
+    PRAGMA journal_mode = truncate;
+    BEGIN;
+      INSERT INTO t1 VALUES('jkl', 'mno', 'pqr');
+      INSERT INTO t1 VALUES(randomblob(10000), 0, 0);
+      UPDATE t2 SET x = 2;
+    COMMIT;
+    DELETE FROM t1 WHERE length(a)>3;
+    SELECT * FROM t1;
+    SELECT * FROM t2;
+  }]
+  db close
+  set res
+} -test {
+  faultsim_test_result {0 {abc def ghi truncate abc def ghi jkl mno pqr 2}}
+}
+
+do_faultsim_test 2.2 -faults vfsfault-* -prep {
+  catch { db close }
+  faultsim_restore
+} -body {
+  sqlite3 db test.db
+  set res [db eval {
+    ATTACH 'test.db2' AS 'aux';
+    SELECT * FROM t1;
+    PRAGMA journal_mode = truncate;
+    BEGIN;
+      INSERT INTO t1 VALUES('jkl', 'mno', 'pqr');
+      UPDATE t2 SET x = 2;
+    COMMIT;
+    SELECT * FROM t1;
+    SELECT * FROM t2;
+  }]
+  db close
+  set res
+} -test {
+  faultsim_test_result {0 {abc def ghi truncate abc def ghi jkl mno pqr 2}} \
+    {1 {unable to open database file}}                                      \
+    {1 {unable to open database: test.db2}}                                 \
+    {1 {attempt to write a readonly database}}                              \
+    {1 {disk I/O error}}                                                  
+}
+
+#-------------------------------------------------------------------------
+
+proc vfsfault_install {} { 
+  test_syscall reset
+  test_syscall install {fstat fallocate}
+}
+do_faultsim_test 3 -faults vfsfault-* -prep {
+  faultsim_delete_and_reopen
+  file_control_chunksize_test db main 8192
+  execsql {
+    PRAGMA synchronous=OFF;
+    CREATE TABLE t1(a, b);
+    BEGIN;
+      SELECT * FROM t1;
+  }
+} -body {
+  test_syscall errno fstat     EIO
+  test_syscall errno fallocate EIO
+
+  execsql {
+    INSERT INTO t1 VALUES(randomblob(10000), randomblob(10000));
+    SELECT length(a) + length(b) FROM t1;
+    COMMIT;
+  }
+} -test {
+  faultsim_test_result {0 20000}
+}
+
+#-------------------------------------------------------------------------
+# Test errors in mmap().
+#
+proc vfsfault_install {} { 
+  test_syscall reset
+  test_syscall install {mmap}
+}
+
+faultsim_delete_and_reopen
+execsql {
+  CREATE TABLE t1(a, b);
+  INSERT INTO t1 VALUES(1, 2);
+}
+faultsim_save_and_close
+
+do_faultsim_test 4 -faults vfsfault-* -prep {
+  faultsim_restore_and_reopen
+  file_control_chunksize_test db main 8192
+  execsql { 
+    PRAGMA mmap_size = 1000000;
+  }
+} -body {
+  test_syscall errno mmap     EACCES
+
+  execsql {
+    SELECT * FROM t1;
+  }
+} -test {
+  faultsim_test_result {0 {1 2}} {1 {disk I/O error}}
+}
+
+finish_test
diff --git a/test/tabfunc01.test b/test/tabfunc01.test
new file mode 100644
index 0000000000000000000000000000000000000000..b6797171e0b3017f80ca2ee57029cb79afa784f9
--- /dev/null
+++ b/test/tabfunc01.test
@@ -0,0 +1,381 @@
+# 2015-08-19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+# This file implements tests for table-valued-functions implemented using
+# eponymous virtual tables.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix tabfunc01
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+load_static_extension db series
+load_static_extension db carray
+load_static_extension db remember
+
+do_execsql_test tabfunc01-1.1 {
+  SELECT *, '|' FROM generate_series WHERE start=1 AND stop=9 AND step=2;
+} {1 | 3 | 5 | 7 | 9 |}
+do_execsql_test tabfunc01-1.1b {
+  PRAGMA table_xinfo(generate_series);
+} {0 value {} 0 {} 0 0 1 start {} 0 {} 0 1 2 stop {} 0 {} 0 1 3 step {} 0 {} 0 1}
+do_execsql_test tabfunc01-1.2 {
+  SELECT *, '|' FROM generate_series(0) LIMIT 5;
+} {0 | 1 | 2 | 3 | 4 |}
+do_catchsql_test tabfunc01-1.2b {
+  SELECT *, '|' FROM generate_series LIMIT 5;
+} {1 {first argument to "generate_series()" missing or unusable}}
+do_catchsql_test tabfunc01-1.2c {
+  SELECT *, '|' FROM generate_series(value) LIMIT 5;
+} {1 {first argument to "generate_series()" missing or unusable}}
+do_catchsql_test tabfunc01-1.3 {
+  CREATE VIRTUAL TABLE t1 USING generate_series;
+} {1 {no such module: generate_series}}
+do_execsql_test tabfunc01-1.4 {
+  SELECT * FROM generate_series(1,9,2);
+} {1 3 5 7 9}
+do_execsql_test tabfunc01-1.5 {
+  SELECT * FROM generate_series(1,9);
+} {1 2 3 4 5 6 7 8 9}
+do_execsql_test tabfunc01-1.6 {
+  SELECT * FROM generate_series(1,10) WHERE step=3;
+} {1 4 7 10}
+do_catchsql_test tabfunc01-1.7 {
+  SELECT * FROM generate_series(1,9,2,11);
+} {1 {too many arguments on generate_series() - max 3}}
+
+do_execsql_test tabfunc01-1.8 {
+  SELECT * FROM generate_series(0,32,5) ORDER BY rowid DESC;
+} {30 25 20 15 10 5 0}
+do_execsql_test tabfunc01-1.9 {
+  SELECT rowid, * FROM generate_series(0,32,5) ORDER BY value DESC;
+} {7 30 6 25 5 20 4 15 3 10 2 5 1 0}
+do_execsql_test tabfunc01-1.10 {
+  SELECT rowid, * FROM generate_series(0,32,5) ORDER BY +value DESC;
+} {7 30 6 25 5 20 4 15 3 10 2 5 1 0}
+
+do_execsql_test tabfunc01-1.20 {
+  CREATE VIEW v1(a,b) AS VALUES(1,2),(3,4);
+  SELECT * FROM v1;
+} {1 2 3 4}
+do_catchsql_test tabfunc01-1.21.1 {
+  SELECT * FROM v1(55);
+} {1 {'v1' is not a function}}
+do_catchsql_test tabfunc01-1.21.2 {
+  SELECT * FROM v1();
+} {1 {'v1' is not a function}}
+do_execsql_test tabfunc01-1.22 {
+  CREATE VIEW v2(x) AS SELECT value FROM generate_series(1,5);
+  SELECT * FROM v2;
+} {1 2 3 4 5}
+do_catchsql_test tabfunc01-1.23.1 {
+  SELECT * FROM v2(55);
+} {1 {'v2' is not a function}}
+do_catchsql_test tabfunc01-1.23.2 {
+  SELECT * FROM v2();
+} {1 {'v2' is not a function}}
+do_execsql_test tabfunc01-1.24 {
+  CREATE TABLE t0(x);
+  INSERT INTO t0(x) VALUES(123),(456),(789);
+  SELECT * FROM t0 ORDER BY x;
+} {123 456 789}
+do_catchsql_test tabfunc01-1.25 {
+  SELECT * FROM t0(55) ORDER BY x;
+} {1 {'t0' is not a function}}
+do_catchsql_test tabfunc01-1.26 {
+  WITH w0 AS (SELECT * FROM t0)
+  INSERT INTO t0(x) SELECT * FROM w0()
+} {1 {'w0' is not a function}}
+
+do_execsql_test tabfunc01-2.1 {
+  CREATE TABLE t1(x);
+  INSERT INTO t1(x) VALUES(2),(3);
+  SELECT *, '|' FROM t1, generate_series(1,x) ORDER BY 1, 2
+} {2 1 | 2 2 | 3 1 | 3 2 | 3 3 |}
+do_execsql_test tabfunc01-2.2 {
+  SELECT *, '|' FROM (SELECT x FROM t1) AS y, generate_series(1,y.x)
+  ORDER BY 1, 2;
+} {2 1 | 2 2 | 3 1 | 3 2 | 3 3 |}
+
+do_execsql_test tabfunc01-2.50 {
+  SELECT * FROM generate_series(0) LIMIT 5;
+} {0 1 2 3 4}
+
+do_execsql_test tabfunc01-3.1 {
+  SELECT DISTINCT value FROM generate_series(1,x), t1 ORDER BY 1;
+} {1 2 3}
+
+do_eqp_test tabfunc01-3.10 {
+  SELECT value FROM generate_series(1,10) ORDER BY value;
+} {
+  QUERY PLAN
+  `--SCAN generate_series VIRTUAL TABLE INDEX 0x13:
+}
+do_eqp_test tabfunc01-3.11 {
+  SELECT value FROM generate_series(1,10) ORDER BY +value;
+} {
+  QUERY PLAN
+  |--SCAN generate_series VIRTUAL TABLE INDEX 0x3:
+  `--USE TEMP B-TREE FOR ORDER BY
+}
+do_eqp_test tabfunc01-3.12 {
+  SELECT value FROM generate_series(1,10) ORDER BY value, stop;
+} {
+  QUERY PLAN
+  `--SCAN generate_series VIRTUAL TABLE INDEX 0x13:
+}
+do_eqp_test tabfunc01-3.13 {
+  SELECT value FROM generate_series(1,10) ORDER BY stop, value;
+} {
+  QUERY PLAN
+  |--SCAN generate_series VIRTUAL TABLE INDEX 0x3:
+  `--USE TEMP B-TREE FOR ORDER BY
+}
+
+
+do_eqp_test tabfunc01-3.20 {
+  WITH t1(a) AS (
+    SELECT value FROM generate_series(0,10,2)
+    UNION ALL
+    SELECT value FROM generate_series(9,18,3)
+  )
+  SELECT * FROM t1 ORDER BY a;
+} {
+  QUERY PLAN
+  `--MERGE (UNION ALL)
+     |--LEFT
+     |  `--SCAN generate_series VIRTUAL TABLE INDEX 0x17:
+     `--RIGHT
+        `--SCAN generate_series VIRTUAL TABLE INDEX 0x17:
+}
+  
+
+# Eponymous virtual table exists in all schemas.
+#
+do_execsql_test tabfunc01-4.1 {
+  SELECT * FROM main.generate_series(1,4)
+} {1 2 3 4}
+do_execsql_test tabfunc01-4.2 {
+  SELECT * FROM temp.generate_series(1,4)
+} {1 2 3 4}
+do_execsql_test tabfunc01-4.3 {
+  ATTACH ':memory:' AS aux1;
+  CREATE TABLE aux1.t1(a,b,c);
+  SELECT * FROM aux1.generate_series(1,4)
+} {1 2 3 4}
+
+# 2018-12-03: Fix bug reported by by private email.
+do_execsql_test tabfunc01-4.4 {
+  SELECT * FROM (generate_series(1,5,2)) AS x LIMIT 10;
+} {1 3 5}
+
+# The next series of tests is verifying that virtual table are able
+# to optimize the IN operator, even on terms that are not marked "omit".
+# When the generate_series virtual table is compiled for the testfixture,
+# the special -DSQLITE_SERIES_CONSTRAINT_VERIFY=1 option is used, which
+# causes the xBestIndex method of generate_series to leave the
+# sqlite3_index_constraint_usage.omit flag set to 0, which should cause
+# the SQLite core to verify the start=, stop=, and step= constraints on
+# each step of output.  At one point, the IN operator could not be used
+# by virtual tables unless omit was set.
+#
+do_execsql_test tabfunc01-500 {
+  SELECT * FROM generate_series WHERE start IN (1,7) AND stop=20 AND step=10
+  ORDER BY +1;
+} {1 7 11 17}
+
+# Table-valued functions on the RHS of an IN operator
+#
+do_execsql_test tabfunc01-600 {
+  CREATE TABLE t600(a INTEGER PRIMARY KEY, b TEXT);
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<100)
+    INSERT INTO t600(a,b) SELECT x, printf('(%03d)',x) FROM c;
+  SELECT b FROM t600 WHERE a IN generate_series(2,52,10);
+} {(002) (012) (022) (032) (042) (052)}
+
+
+do_test tabfunc01-700 {
+  set PTR1 [intarray_addr 5 7 13 17 23]
+  db eval {
+    SELECT b FROM t600, carray(inttoptr($PTR1),5) WHERE a=value;
+  }
+} {(005) (007) (013) (017) (023)}
+do_test tabfunc01-701 {
+  db eval {
+    SELECT b FROM t600 WHERE a IN carray(inttoptr($PTR1),5,'int32');
+  }
+} {(005) (007) (013) (017) (023)}
+do_test tabfunc01-702 {
+  db eval {
+    SELECT b FROM t600 WHERE a IN carray(inttoptr($PTR1),4,'int32');
+  }
+} {(005) (007) (013) (017)}
+do_catchsql_test tabfunc01-710 {
+  SELECT b FROM t600 WHERE a IN carray(inttoptr($PTR1),5,'int33');
+} {1 {unknown datatype: 'int33'}}
+
+do_test tabfunc01-720 {
+  set PTR2 [int64array_addr 5 7 13 17 23]
+  db eval {
+    SELECT b FROM t600, carray(inttoptr($PTR2),5,'int64') WHERE a=value;
+  }
+} {(005) (007) (013) (017) (023)}
+do_test tabfunc01-721 {
+  db eval {
+    SELECT remember(123,inttoptr($PTR2));
+    SELECT value FROM carray(inttoptr($PTR2),5,'int64');
+  }
+} {123 123 7 13 17 23}
+do_test tabfunc01-722 {
+  set PTR3 [expr {$PTR2+16}]
+  db eval {
+    SELECT remember(987,inttoptr($PTR3));
+    SELECT value FROM carray(inttoptr($PTR2),5,'int64');
+  }
+} {987 123 7 987 17 23}
+
+do_test tabfunc01-730 {
+  set PTR4 [doublearray_addr 5.0 7.0 13.0 17.0 23.0]
+  db eval {
+    SELECT b FROM t600, carray(inttoptr($PTR4),5,'double') WHERE a=value;
+  }
+} {(005) (007) (013) (017) (023)}
+
+do_test tabfunc01-740 {
+  set PTR5 [textarray_addr x5 x7 x13 x17 x23]
+  db eval {
+    SELECT b FROM t600, carray(inttoptr($PTR5),5,'char*')
+     WHERE a=trim(value,'x');
+  }
+} {(005) (007) (013) (017) (023)}
+
+do_test tabfunc01-750 {
+  db eval {
+    SELECT aa.value, bb.value, '|'
+      FROM carray(inttoptr($PTR4),5,'double') AS aa
+      JOIN carray(inttoptr($PTR5),5,'char*') AS bb ON aa.rowid=bb.rowid;
+  }
+} {5.0 x5 | 7.0 x7 | 13.0 x13 | 17.0 x17 | 23.0 x23 |}
+
+# ticket https://www.sqlite.org/src/info/2ae0c599b735d59e
+# Verification of testtag-20230227a
+do_test tabfunc01-751 {
+  db eval {
+    SELECT aa.value, bb.value, '|'
+      FROM carray(inttoptr($PTR4),5,'double') AS aa
+      LEFT JOIN carray(inttoptr($PTR5),5,'char*') AS bb ON aa.rowid=bb.rowid;
+  }
+} {5.0 x5 | 7.0 x7 | 13.0 x13 | 17.0 x17 | 23.0 x23 |}
+
+ifcapable altertable {
+  do_test tabfunc01-800 {
+    catchsql {
+      ALTER TABLE generate_series ADD COLUMN col2;
+    }
+  } {1 {virtual tables may not be altered}}
+  do_test tabfunc01-810 {
+    catchsql {
+      ALTER TABLE generate_series RENAME TO flubber;
+    }
+  } {1 {table generate_series may not be altered}}
+  do_test tabfunc01-820 {
+    catchsql {
+      ALTER TABLE generate_series RENAME  start TO flubber;
+    }
+  } {1 {table generate_series may not be altered}}
+  do_test tabfunc01-830 {
+    catchsql {
+      ALTER TABLE generate_series DROP COLUMN start;
+    }
+  } {1 {table generate_series may not be altered}}
+  do_test tabfunc01-900 {
+    catchsql {
+      ALTER TABLE pragma_compile_options ADD COLUMN col2;
+    }
+  } {1 {virtual tables may not be altered}}
+  do_test tabfunc01-910 {
+    catchsql {
+      ALTER TABLE pragma_compile_options RENAME TO flubber;
+    }
+  } {1 {table pragma_compile_options may not be altered}}
+  do_test tabfunc01-920 {
+    catchsql {
+      ALTER TABLE pragma_compile_options RENAME  start TO flubber;
+    }
+  } {1 {table pragma_compile_options may not be altered}}
+  do_test tabfunc01-930 {
+    catchsql {
+      ALTER TABLE pragma_compile_options DROP COLUMN start;
+    }
+  } {1 {table pragma_compile_options may not be altered}}
+}
+
+#-----------------------------------------------------------------------------
+# 2024-04-26  LIMIT and OFFSET passed into virtual tables
+# https://sqlite.org/forum/forumpost/c243b8f856
+#
+do_execsql_test tabfunc01-900 {
+  SELECT * FROM (
+    SELECT * FROM generate_series(1,10)
+    UNION ALL
+    SELECT * FROM generate_series(101,104)
+  ) LIMIT 10 OFFSET 5;
+} {6 7 8 9 10 101 102 103 104}
+do_execsql_test tabfunc01-910 {
+  SELECT * FROM (
+    SELECT * FROM generate_series(1,10)
+    UNION ALL
+    SELECT * FROM generate_series(101,104)
+  ) LIMIT -1 OFFSET 5;
+} {6 7 8 9 10 101 102 103 104}
+do_execsql_test tabfunc01-920 {
+  SELECT * FROM (
+    SELECT * FROM generate_series(1,10)
+    UNION ALL
+    SELECT * FROM generate_series(101,104)
+  ) LIMIT -1 OFFSET 0;
+} {1 2 3 4 5 6 7 8 9 10 101 102 103 104}
+
+#-------------------------------------------------------------------------
+# Forum post https://sqlite.org/forum/forumpost/e7c3ae1215
+#
+foreach {tn where res} {
+  1000 "where value = 2" 2
+  1010 "where value in (2)" 2
+  1020 "where value in (select 2)" 2
+  1030 "where value = 2 OR value = 4" {2 4}
+  1040 "where value in (2, 4)" {2 4}
+} {
+  do_execsql_test $tn "
+    SELECT value FROM generate_series(1, 5) $where
+  " $res
+}
+
+do_execsql_test 1100 {
+  select 1 as c_0
+    from        
+    generate_series(1, 1) as ref_3
+    where (ref_3.value) in (select 1);
+} {1}
+
+
+
+# Free up memory allocations
+intarray_addr
+int64array_addr
+doublearray_addr
+textarray_addr
+
+finish_test
diff --git a/test/table.test b/test/table.test
new file mode 100644
index 0000000000000000000000000000000000000000..b961207f8b832a5f7da49035f116c3d8a4d6cd33
--- /dev/null
+++ b/test/table.test
@@ -0,0 +1,840 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the CREATE TABLE statement.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Create a basic table and verify it is added to sqlite_master
+#
+do_test table-1.1 {
+  execsql {
+    CREATE TABLE test1 (
+      one varchar(10),
+      two text
+    )
+  }
+  execsql {
+    SELECT sql FROM sqlite_master WHERE type!='meta'
+  }
+} {{CREATE TABLE test1 (
+      one varchar(10),
+      two text
+    )}}
+
+
+# Verify the other fields of the sqlite_master file.
+#
+do_test table-1.3 {
+  execsql {SELECT name, tbl_name, type FROM sqlite_master WHERE type!='meta'}
+} {test1 test1 table}
+
+# Close and reopen the database.  Verify that everything is
+# still the same.
+#
+do_test table-1.4 {
+  db close
+  sqlite3 db test.db
+  execsql {SELECT name, tbl_name, type from sqlite_master WHERE type!='meta'}
+} {test1 test1 table}
+
+# Drop the database and make sure it disappears.
+#
+do_test table-1.5 {
+  execsql {DROP TABLE test1}
+  execsql {SELECT * FROM sqlite_master WHERE type!='meta'}
+} {}
+
+# Close and reopen the database.  Verify that the table is
+# still gone.
+#
+do_test table-1.6 {
+  db close
+  sqlite3 db test.db
+  execsql {SELECT name FROM sqlite_master WHERE type!='meta'}
+} {}
+
+# Repeat the above steps, but this time quote the table name.
+#
+do_test table-1.10 {
+  execsql {CREATE TABLE "create" (f1 int)}
+  execsql {SELECT name FROM sqlite_master WHERE type!='meta'}
+} {create}
+do_test table-1.11 {
+  execsql {DROP TABLE "create"}
+  execsql {SELECT name FROM "sqlite_master" WHERE type!='meta'}
+} {}
+do_test table-1.12 {
+  execsql {CREATE TABLE test1("f1 ho" int)}
+  execsql {SELECT name as "X" FROM sqlite_master WHERE type!='meta'}
+} {test1}
+do_test table-1.13 {
+  execsql {DROP TABLE "TEST1"}
+  execsql {SELECT name FROM "sqlite_master" WHERE type!='meta'}
+} {}
+
+
+
+# Verify that we cannot make two tables with the same name
+#
+do_test table-2.1 {
+  execsql {CREATE TABLE TEST2(one text)}
+  catchsql {CREATE TABLE test2(two text default 'hi')}
+} {1 {table test2 already exists}}
+do_test table-2.1.1 {
+  catchsql {CREATE TABLE "test2" (two)}
+} {1 {table "test2" already exists}}
+do_test table-2.1b {
+  set v [catch {execsql {CREATE TABLE sqlite_master(two text)}} msg]
+  lappend v $msg
+} {1 {object name reserved for internal use: sqlite_master}}
+do_test table-2.1c {
+  db close
+  sqlite3 db test.db
+  set v [catch {execsql {CREATE TABLE sqlite_master(two text)}} msg]
+  lappend v $msg
+} {1 {object name reserved for internal use: sqlite_master}}
+do_test table-2.1d {
+  catchsql {CREATE TABLE IF NOT EXISTS test2(x,y)}
+} {0 {}}
+do_test table-2.1e {
+  catchsql {CREATE TABLE IF NOT EXISTS test2(x UNIQUE, y TEXT PRIMARY KEY)}
+} {0 {}}
+do_test table-2.1f {
+  execsql {DROP TABLE test2; SELECT name FROM sqlite_master WHERE type!='meta'}
+} {}
+
+# Verify that we cannot make a table with the same name as an index
+#
+do_test table-2.2a {
+  execsql {CREATE TABLE test2(one text)}
+  execsql {CREATE INDEX test3 ON test2(one)}
+  catchsql {CREATE TABLE test3(two text)}
+} {1 {there is already an index named test3}}
+do_test table-2.2b {
+  db close
+  sqlite3 db test.db
+  set v [catch {execsql {CREATE TABLE test3(two text)}} msg]
+  lappend v $msg
+} {1 {there is already an index named test3}}
+do_test table-2.2c {
+  execsql {SELECT name FROM sqlite_master WHERE type!='meta' ORDER BY name}
+} {test2 test3}
+do_test table-2.2d {
+  execsql {DROP INDEX test3}
+  set v [catch {execsql {CREATE TABLE test3(two text)}} msg]
+  lappend v $msg
+} {0 {}}
+do_test table-2.2e {
+  execsql {SELECT name FROM sqlite_master WHERE type!='meta' ORDER BY name}
+} {test2 test3}
+do_test table-2.2f {
+  execsql {DROP TABLE test2; DROP TABLE test3}
+  execsql {SELECT name FROM sqlite_master WHERE type!='meta' ORDER BY name}
+} {}
+
+# Create a table with many field names
+#
+set big_table \
+{CREATE TABLE big(
+  f1 varchar(20),
+  f2 char(10),
+  f3 varchar(30) primary key,
+  f4 text,
+  f5 text,
+  f6 text,
+  f7 text,
+  f8 text,
+  f9 text,
+  f10 text,
+  f11 text,
+  f12 text,
+  f13 text,
+  f14 text,
+  f15 text,
+  f16 text,
+  f17 text,
+  f18 text,
+  f19 text,
+  f20 text
+)}
+do_test table-3.1 {
+  execsql $big_table
+  execsql {SELECT sql FROM sqlite_master WHERE type=='table'}
+} \{$big_table\}
+do_test table-3.2 {
+  set v [catch {execsql {CREATE TABLE BIG(xyz foo)}} msg]
+  lappend v $msg
+} {1 {table BIG already exists}}
+do_test table-3.3 {
+  set v [catch {execsql {CREATE TABLE biG(xyz foo)}} msg]
+  lappend v $msg
+} {1 {table biG already exists}}
+do_test table-3.4 {
+  set v [catch {execsql {CREATE TABLE bIg(xyz foo)}} msg]
+  lappend v $msg
+} {1 {table bIg already exists}}
+do_test table-3.5 {
+  db close
+  sqlite3 db test.db
+  set v [catch {execsql {CREATE TABLE Big(xyz foo)}} msg]
+  lappend v $msg
+} {1 {table Big already exists}}
+do_test table-3.6 {
+  execsql {DROP TABLE big}
+  execsql {SELECT name FROM sqlite_master WHERE type!='meta'}
+} {}
+
+# Try creating large numbers of tables
+#
+set r {}
+for {set i 1} {$i<=100} {incr i} {
+  lappend r [format test%03d $i]
+}
+do_test table-4.1 {
+  for {set i 1} {$i<=100} {incr i} {
+    set sql "CREATE TABLE [format test%03d $i] ("
+    for {set k 1} {$k<$i} {incr k} {
+      append sql "field$k text,"
+    }
+    append sql "last_field text)"
+    execsql $sql
+  }
+  execsql {SELECT name FROM sqlite_master WHERE type!='meta' ORDER BY name}
+} $r
+do_test table-4.1b {
+  db close
+  sqlite3 db test.db
+  execsql {SELECT name FROM sqlite_master WHERE type!='meta' ORDER BY name}
+} $r
+
+# Drop the even numbered tables
+#
+set r {}
+for {set i 1} {$i<=100} {incr i 2} {
+  lappend r [format test%03d $i]
+}
+do_test table-4.2 {
+  for {set i 2} {$i<=100} {incr i 2} {
+    # if {$i==38} {execsql {pragma vdbe_trace=on}}
+    set sql "DROP TABLE [format TEST%03d $i]"
+    execsql $sql
+  }
+  execsql {SELECT name FROM sqlite_master WHERE type!='meta' ORDER BY name}
+} $r
+#exit
+
+# Drop the odd number tables
+#
+do_test table-4.3 {
+  for {set i 1} {$i<=100} {incr i 2} {
+    set sql "DROP TABLE [format test%03d $i]"
+    execsql $sql
+  }
+  execsql {SELECT name FROM sqlite_master WHERE type!='meta' ORDER BY name}
+} {}
+
+# Try to drop a table that does not exist
+#
+do_test table-5.1.1 {
+  catchsql {DROP TABLE test009}
+} {1 {no such table: test009}}
+do_test table-5.1.2 {
+  catchsql {DROP TABLE IF EXISTS test009}
+} {0 {}}
+
+# Try to drop sqlite_master
+#
+do_test table-5.2 {
+  catchsql {DROP TABLE IF EXISTS sqlite_master}
+} {1 {table sqlite_master may not be dropped}}
+
+# Dropping sqlite_statN tables is OK.
+#
+do_test table-5.2.1 {
+  db eval {
+    ANALYZE;
+    DROP TABLE IF EXISTS sqlite_stat1;
+    DROP TABLE IF EXISTS sqlite_stat2;
+    DROP TABLE IF EXISTS sqlite_stat3;
+    DROP TABLE IF EXISTS sqlite_stat4;
+    SELECT name FROM sqlite_master WHERE name GLOB 'sqlite_stat*';
+  }
+} {}
+
+do_test table-5.2.2 {
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+  sqlite3_db_config db DEFENSIVE 0
+  db eval {
+    CREATE TABLE t0(a,b);
+    CREATE INDEX t ON t0(a);
+    PRAGMA writable_schema=ON;
+    UPDATE sqlite_master SET sql='CREATE TABLE a.b(a UNIQUE';
+    BEGIN;
+    CREATE TABLE t1(x);
+    ROLLBACK;
+    DROP TABLE IF EXISTS t99;
+  }
+} {}
+db close
+forcedelete test.db
+sqlite3 db test.db
+
+# Make sure an EXPLAIN does not really create a new table
+#
+do_test table-5.3 {
+  ifcapable {explain} {
+    execsql {EXPLAIN CREATE TABLE test1(f1 int)}
+  }
+  execsql {SELECT name FROM sqlite_master WHERE type!='meta'}
+} {}
+
+# Make sure an EXPLAIN does not really drop an existing table
+#
+do_test table-5.4 {
+  execsql {CREATE TABLE test1(f1 int)}
+  ifcapable {explain} {
+    execsql {EXPLAIN DROP TABLE test1}
+  }
+  execsql {SELECT name FROM sqlite_master WHERE type!='meta'}
+} {test1}
+
+# Create a table with a goofy name
+#
+#do_test table-6.1 {
+#  execsql {CREATE TABLE 'Spaces In This Name!'(x int)}
+#  execsql {INSERT INTO 'spaces in this name!' VALUES(1)}
+#  set list [glob -nocomplain testdb/spaces*.tbl]
+#} {testdb/spaces+in+this+name+.tbl}
+
+# Try using keywords as table names or column names.
+# 
+do_test table-7.1 {
+  set v [catch {execsql {
+    CREATE TABLE weird(
+      desc text,
+      asc text,
+      key int,
+      [14_vac] boolean,
+      fuzzy_dog_12 varchar(10),
+      begin blob,
+      end clob
+    )
+  }} msg]
+  lappend v $msg
+} {0 {}}
+do_test table-7.2 {
+  execsql {
+    INSERT INTO weird VALUES('a','b',9,0,'xyz','hi','y''all');
+    SELECT * FROM weird;
+  }
+} {a b 9 0 xyz hi y'all}
+do_test table-7.3 {
+  execsql2 {
+    SELECT * FROM weird;
+  }
+} {desc a asc b key 9 14_vac 0 fuzzy_dog_12 xyz begin hi end y'all}
+do_test table-7.3 {
+  execsql {
+    CREATE TABLE savepoint(release);
+    INSERT INTO savepoint(release) VALUES(10);
+    UPDATE savepoint SET release = 5;
+    SELECT release FROM savepoint;
+  }
+} {5}
+
+# Try out the CREATE TABLE AS syntax
+#
+do_test table-8.1 {
+  execsql2 {
+    CREATE TABLE t2 AS SELECT * FROM weird;
+    SELECT * FROM t2;
+  }
+} {desc a asc b key 9 14_vac 0 fuzzy_dog_12 xyz begin hi end y'all}
+do_test table-8.1.1 {
+  execsql {
+    SELECT sql FROM sqlite_master WHERE name='t2';
+  }
+} {{CREATE TABLE t2(
+  "desc" TEXT,
+  "asc" TEXT,
+  "key" INT,
+  "14_vac" NUM,
+  fuzzy_dog_12 TEXT,
+  "begin",
+  "end" TEXT
+)}}
+do_test table-8.2 {
+  execsql {
+    CREATE TABLE "t3""xyz"(a,b,c);
+    INSERT INTO [t3"xyz] VALUES(1,2,3);
+    SELECT * FROM [t3"xyz];
+  }
+} {1 2 3}
+do_test table-8.3 {
+  execsql2 {
+    CREATE TABLE [t4"abc] AS SELECT count(*) as cnt, max(b+c) FROM [t3"xyz];
+    SELECT * FROM [t4"abc];
+  }
+} {cnt 1 max(b+c) 5}
+
+# Update for v3: The declaration type of anything except a column is now a
+# NULL pointer, so the created table has no column types. (Changed result
+# from {{CREATE TABLE 't4"abc'(cnt NUMERIC,"max(b+c)" NUMERIC)}}).
+do_test table-8.3.1 {
+  execsql {
+    SELECT sql FROM sqlite_master WHERE name='t4"abc'
+  }
+} {{CREATE TABLE "t4""abc"(cnt,"max(b+c)")}}
+
+ifcapable tempdb {
+  do_test table-8.4 {
+    execsql2 {
+      CREATE TEMPORARY TABLE t5 AS SELECT count(*) AS [y'all] FROM [t3"xyz];
+      SELECT * FROM t5;
+    }
+  } {y'all 1}
+}
+
+do_test table-8.5 {
+  db close
+  sqlite3 db test.db
+  execsql2 {
+    SELECT * FROM [t4"abc];
+  }
+} {cnt 1 max(b+c) 5}
+do_test table-8.6 {
+  execsql2 {
+    SELECT * FROM t2;
+  }
+} {desc a asc b key 9 14_vac 0 fuzzy_dog_12 xyz begin hi end y'all}
+do_test table-8.7 {
+  catchsql {
+    SELECT * FROM t5;
+  }
+} {1 {no such table: t5}}
+do_test table-8.8 {
+  catchsql {
+    CREATE TABLE t5 AS SELECT * FROM no_such_table;
+  }
+} {1 {no such table: no_such_table}}
+
+do_test table-8.9 {
+  execsql {
+    CREATE TABLE t10("col.1" [char.3]);
+    CREATE TABLE t11 AS SELECT * FROM t10;
+    SELECT sql FROM sqlite_master WHERE name = 't11';
+  }
+} {{CREATE TABLE t11("col.1" TEXT)}}
+do_test table-8.10 {
+  execsql {
+    CREATE TABLE t12(
+      a INTEGER,
+      b VARCHAR(10),
+      c VARCHAR(1,10),
+      d VARCHAR(+1,-10),
+      e VARCHAR (+1,-10),
+      f "VARCHAR (+1,-10, 5)",
+      g BIG INTEGER
+    );
+    CREATE TABLE t13 AS SELECT * FROM t12;
+    SELECT sql FROM sqlite_master WHERE name = 't13';
+  }
+} {{CREATE TABLE t13(
+  a INT,
+  b TEXT,
+  c TEXT,
+  d TEXT,
+  e TEXT,
+  f TEXT,
+  g INT
+)}}
+
+# Make sure we cannot have duplicate column names within a table.
+#
+do_test table-9.1 {
+  catchsql {
+    CREATE TABLE t6(a,b,a);
+  }
+} {1 {duplicate column name: a}}
+do_test table-9.2 {
+  catchsql {
+    CREATE TABLE t6(a varchar(100), b blob, a integer);
+  }
+} {1 {duplicate column name: a}}
+
+# Check the foreign key syntax.
+#
+ifcapable {foreignkey} {
+do_test table-10.1 {
+  catchsql {
+    CREATE TABLE t6(a REFERENCES t4(a) NOT NULL);
+    INSERT INTO t6 VALUES(NULL);
+  }
+} {1 {NOT NULL constraint failed: t6.a}}
+do_test table-10.2 {
+  catchsql {
+    DROP TABLE t6;
+    CREATE TABLE t6(a REFERENCES t4(a) MATCH PARTIAL);
+  }
+} {0 {}}
+do_test table-10.3 {
+  catchsql {
+    DROP TABLE t6;
+    CREATE TABLE t6(a REFERENCES t4 MATCH FULL ON DELETE SET NULL NOT NULL);
+  }
+} {0 {}}
+do_test table-10.4 {
+  catchsql {
+    DROP TABLE t6;
+    CREATE TABLE t6(a REFERENCES t4 MATCH FULL ON UPDATE SET DEFAULT DEFAULT 1);
+  }
+} {0 {}}
+do_test table-10.5 {
+  catchsql {
+    DROP TABLE t6;
+    CREATE TABLE t6(a NOT NULL NOT DEFERRABLE INITIALLY IMMEDIATE);
+  }
+} {0 {}}
+do_test table-10.6 {
+  catchsql {
+    DROP TABLE t6;
+    CREATE TABLE t6(a NOT NULL DEFERRABLE INITIALLY DEFERRED);
+  }
+} {0 {}}
+do_test table-10.7 {
+  catchsql {
+    DROP TABLE t6;
+    CREATE TABLE t6(a,
+      FOREIGN KEY (a) REFERENCES t4(b) DEFERRABLE INITIALLY DEFERRED
+    );
+  }
+} {0 {}}
+do_test table-10.8 {
+  catchsql {
+    DROP TABLE t6;
+    CREATE TABLE t6(a,b,c,
+      FOREIGN KEY (b,c) REFERENCES t4(x,y) MATCH PARTIAL
+        ON UPDATE SET NULL ON DELETE CASCADE DEFERRABLE INITIALLY DEFERRED
+    );
+  }
+} {0 {}}
+do_test table-10.9 {
+  catchsql {
+    DROP TABLE t6;
+    CREATE TABLE t6(a,b,c,
+      FOREIGN KEY (b,c) REFERENCES t4(x)
+    );
+  }
+} {1 {number of columns in foreign key does not match the number of columns in the referenced table}}
+do_test table-10.10 {
+  catchsql {DROP TABLE t6}
+  catchsql {
+    CREATE TABLE t6(a,b,c,
+      FOREIGN KEY (b,c) REFERENCES t4(x,y,z)
+    );
+  }
+} {1 {number of columns in foreign key does not match the number of columns in the referenced table}}
+do_test table-10.11 {
+  catchsql {DROP TABLE t6}
+  catchsql {
+    CREATE TABLE t6(a,b, c REFERENCES t4(x,y));
+  }
+} {1 {foreign key on c should reference only one column of table t4}}
+do_test table-10.12 {
+  catchsql {DROP TABLE t6}
+  catchsql {
+    CREATE TABLE t6(a,b,c,
+      FOREIGN KEY (b,x) REFERENCES t4(x,y)
+    );
+  }
+} {1 {unknown column "x" in foreign key definition}}
+do_test table-10.13 {
+  catchsql {DROP TABLE t6}
+  catchsql {
+    CREATE TABLE t6(a,b,c,
+      FOREIGN KEY (x,b) REFERENCES t4(x,y)
+    );
+  }
+} {1 {unknown column "x" in foreign key definition}}
+} ;# endif foreignkey
+
+# Test for the "typeof" function. More tests for the
+# typeof() function are found in bind.test and types.test.
+#
+do_test table-11.1 {
+  execsql {
+    CREATE TABLE t7(
+       a integer primary key,
+       b number(5,10),
+       c character varying (8),
+       d VARCHAR(9),
+       e clob,
+       f BLOB,
+       g Text,
+       h
+    );
+    INSERT INTO t7(a) VALUES(1);
+    SELECT typeof(a), typeof(b), typeof(c), typeof(d),
+           typeof(e), typeof(f), typeof(g), typeof(h)
+    FROM t7 LIMIT 1;
+  }
+} {integer null null null null null null null} 
+do_test table-11.2 {
+  execsql {
+    SELECT typeof(a+b), typeof(a||b), typeof(c+d), typeof(c||d)
+    FROM t7 LIMIT 1;
+  }
+} {null null null null}
+
+# Test that when creating a table using CREATE TABLE AS, column types are
+# assigned correctly for (SELECT ...) and 'x AS y' expressions.
+do_test table-12.1 {
+  ifcapable subquery {
+    execsql {
+      CREATE TABLE t8 AS SELECT b, h, a as i, (SELECT f FROM t7) as j FROM t7;
+    }
+  } else {
+    execsql {
+      CREATE TABLE t8 AS SELECT b, h, a as i, f as j FROM t7;
+    }
+  }
+} {}
+do_test table-12.2 {
+  execsql {
+    SELECT sql FROM sqlite_master WHERE tbl_name = 't8'
+  }
+} {{CREATE TABLE t8(b NUM,h,i INT,j)}}
+
+#--------------------------------------------------------------------
+# Test cases table-13.*
+#
+# Test the ability to have default values of CURRENT_TIME, CURRENT_DATE
+# and CURRENT_TIMESTAMP.
+#
+do_test table-13.1 {
+  execsql {
+    CREATE TABLE tablet8(
+       a integer primary key,
+       tm text DEFAULT CURRENT_TIME,
+       dt text DEFAULT CURRENT_DATE,
+       dttm text DEFAULT CURRENT_TIMESTAMP
+    );
+    SELECT * FROM tablet8;
+  }
+} {}
+set i 0
+unset -nocomplain date time seconds
+foreach {date time seconds} {
+  1976-07-04 12:00:00 205329600
+  1994-04-16 14:00:00 766504800
+  2000-01-01 00:00:00 946684800
+  2003-12-31 12:34:56 1072874096
+} {
+  incr i
+  set sqlite_current_time $seconds
+  do_test table-13.2.$i {
+    execsql "
+      INSERT INTO tablet8(a) VALUES($i);
+      SELECT tm, dt, dttm FROM tablet8 WHERE a=$i;
+    "
+  } [list $time $date [list $date $time]]
+}
+set sqlite_current_time 0
+
+#--------------------------------------------------------------------
+# Test cases table-14.*
+#
+# Test that a table cannot be created or dropped while other virtual
+# machines are active. This is required because otherwise when in 
+# auto-vacuum mode the btree-layer may need to move the root-pages of 
+# a table for which there is an open cursor.
+#
+# 2007-05-02:  A open btree cursor no longer blocks CREATE TABLE.
+# But DROP TABLE is still prohibited because we do not want to
+# delete a table out from under a running query.
+#
+
+# db eval {
+#   pragma vdbe_trace = 0;
+# }
+# Try to create a table from within a callback:
+unset -nocomplain result
+do_test table-14.1 {
+  set rc [
+    catch {
+      db eval {SELECT * FROM tablet8 LIMIT 1} {} {
+        db eval {CREATE TABLE t9(a, b, c)}
+      }
+    } msg
+  ]
+  set result [list $rc $msg]
+} {0 {}}
+
+# Try to drop a table from within a callback:
+do_test table-14.2 {
+  set rc [
+    catch {
+      db eval {SELECT * FROM tablet8 LIMIT 1} {} {
+        db eval {DROP TABLE t9;}
+      }
+    } msg
+  ] 
+  set result [list $rc $msg]
+} {1 {database table is locked}}
+
+ifcapable attach {
+  # Now attach a database and ensure that a table can be created in the 
+  # attached database whilst in a callback from a query on the main database.
+  do_test table-14.3 {
+    forcedelete test2.db
+    forcedelete test2.db-journal
+    execsql {
+      ATTACH 'test2.db' as aux;
+    }
+    db eval {SELECT * FROM tablet8 LIMIT 1} {} {
+      db eval {CREATE TABLE aux.t1(a, b, c)}
+    }
+  } {}
+  
+  # On the other hand, it should be impossible to drop a table when any VMs 
+  # are active. This is because VerifyCookie instructions may have already
+  # been executed, and btree root-pages may not move after this (which a
+  # delete table might do).
+  do_test table-14.4 {
+    set rc [
+      catch {
+        db eval {SELECT * FROM tablet8 LIMIT 1} {} {
+          db eval {DROP TABLE aux.t1;}
+        }
+      } msg
+    ] 
+    set result [list $rc $msg]
+  } {1 {database table is locked}}
+}
+
+# Create and drop 2000 tables. This is to check that the balance_shallow()
+# routine works correctly on the sqlite_master table. At one point it
+# contained a bug that would prevent the right-child pointer of the
+# child page from being copied to the root page.
+#
+do_test table-15.1 {
+  execsql {BEGIN}
+  for {set i 0} {$i<2000} {incr i} {
+    execsql "CREATE TABLE tbl$i (a, b, c)"
+  }
+  execsql {COMMIT}
+} {}
+do_test table-15.2 {
+  execsql {BEGIN}
+  for {set i 0} {$i<2000} {incr i} {
+    execsql "DROP TABLE tbl$i"
+  }
+  execsql {COMMIT}
+} {}
+
+# Ticket 3a88d85f36704eebe134f7f48aebf00cd6438c1a (2014-08-05)
+# The following SQL script segfaults while running the INSERT statement:
+#
+#    CREATE TABLE t1(x DEFAULT(max(1)));
+#    INSERT INTO t1(rowid) VALUES(1);
+#
+# The problem appears to be the use of an aggregate function as part of
+# the default value for a column. This problem has been in the code since
+# at least 2006-01-01 and probably before that. This problem was detected
+# and reported on the sqlite-users@sqlite.org mailing list by Zsbán Ambrus. 
+#
+do_execsql_test table-16.1 {
+  CREATE TABLE t16(x DEFAULT(max(1)));
+  INSERT INTO t16(x) VALUES(123);
+  SELECT rowid, x FROM t16;
+} {1 123}
+do_catchsql_test table-16.2 {
+  INSERT INTO t16(rowid) VALUES(4);
+} {1 {unknown function: max()}}
+do_execsql_test table-16.3 {
+  DROP TABLE t16;
+  CREATE TABLE t16(x DEFAULT(abs(1)));
+  INSERT INTO t16(rowid) VALUES(4);
+  SELECT rowid, x FROM t16;
+} {4 1}
+do_catchsql_test table-16.4 {
+  DROP TABLE t16;
+  CREATE TABLE t16(x DEFAULT(avg(1)));
+  INSERT INTO t16(rowid) VALUES(123);
+  SELECT rowid, x FROM t16;
+} {1 {unknown function: avg()}}
+do_catchsql_test table-16.5 {
+  DROP TABLE t16;
+  CREATE TABLE t16(x DEFAULT(count()));
+  INSERT INTO t16(rowid) VALUES(123);
+  SELECT rowid, x FROM t16;
+} {1 {unknown function: count()}}
+do_catchsql_test table-16.6 {
+  DROP TABLE t16;
+  CREATE TABLE t16(x DEFAULT(string_agg('x',',')));
+  INSERT INTO t16(rowid) VALUES(123);
+  SELECT rowid, x FROM t16;
+} {1 {unknown function: string_agg()}}
+do_catchsql_test table-16.7 {
+  INSERT INTO t16 DEFAULT VALUES;
+} {1 {unknown function: string_agg()}}
+
+# Ticket [https://www.sqlite.org/src/info/094d39a4c95ee4abbc417f04214617675ba15c63]
+# describes a assertion fault that occurs on a CREATE TABLE .. AS SELECT statement.
+# the following test verifies that the problem has been fixed.
+#
+do_execsql_test table-17.1 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a TEXT);
+  INSERT INTO t1(a) VALUES(1),(2);
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t2(x TEXT, y TEXT);
+  INSERT INTO t2(x,y) VALUES(3,4);
+  DROP TABLE IF EXISTS t3;
+  CREATE TABLE t3 AS
+    SELECT a AS p, coalesce(y,a) AS q FROM t1 LEFT JOIN t2 ON a=x;
+  SELECT p, q, '|' FROM t3 ORDER BY p;
+} {1 1 | 2 2 |}
+
+# 2015-06-16
+# Ticket [https://www.sqlite.org/src/tktview/873cae2b6e25b1991ce5e9b782f9cd0409b96063]
+# Make sure a CREATE TABLE AS statement correctly rolls back partial changes to the
+# sqlite_master table when the SELECT on the right-hand side aborts.
+#
+do_catchsql_test table-18.1 {
+  DROP TABLE IF EXISTS t1;
+  BEGIN;
+  CREATE TABLE t1 AS SELECT zeroblob(2e20);
+} {1 {string or blob too big}}
+do_execsql_test table-18.2 {
+  COMMIT;
+  PRAGMA integrity_check;
+} {ok}
+
+# 2015-09-09
+# Ticket [https://www.sqlite.org/src/info/acd12990885d9276]
+# "CREATE TABLE ... AS SELECT ... FROM sqlite_master" fails because the row
+# in the sqlite_master table for the next table is initially populated
+# with a NULL instead of a record created by OP_Record.
+#
+do_execsql_test table-19.1 {
+  CREATE TABLE t19 AS SELECT * FROM sqlite_master;
+  SELECT name FROM t19 ORDER BY name;
+} {{} savepoint t10 t11 t12 t13 t16 t2 t3 t3\"xyz t4\"abc t7 t8 t9 tablet8 test1 weird}
+
+
+
+finish_test
diff --git a/test/tableapi.test b/test/tableapi.test
new file mode 100644
index 0000000000000000000000000000000000000000..02633cdcac285cc48837134190438ad7be6537d4
--- /dev/null
+++ b/test/tableapi.test
@@ -0,0 +1,252 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the sqlite_exec_printf() and
+# sqlite_get_table_printf() APIs.
+#
+# $Id: tableapi.test,v 1.21 2009/07/17 14:37:25 shane Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !gettable {
+  finish_test
+  return
+}
+
+source $testdir/malloc_common.tcl
+
+do_test tableapi-1.0 {
+  set ::dbx [sqlite3_open test.db]
+  catch {sqlite_exec_printf $::dbx {DROP TABLE xyz} {}}
+  sqlite3_exec_printf $::dbx {CREATE TABLE %s(a int, b text)} xyz
+} {0 {}}
+do_test tableapi-1.1 {
+  sqlite3_exec_printf $::dbx {
+    INSERT INTO xyz VALUES(1,'%q')
+  } {Hi Y'all}
+} {0 {}}
+do_test tableapi-1.2 {
+  sqlite3_exec_printf $::dbx {SELECT * FROM xyz} {}
+} {0 {a b 1 {Hi Y'all}}}
+
+do_test tableapi-2.1 {
+  sqlite3_get_table_printf $::dbx {
+    BEGIN TRANSACTION;
+    SELECT * FROM xyz WHERE b='%q'
+  } {Hi Y'all}
+} {0 1 2 a b 1 {Hi Y'all}}
+do_test tableapi-2.2 {
+  sqlite3_get_table_printf $::dbx {
+    SELECT * FROM xyz
+  } {}
+} {0 1 2 a b 1 {Hi Y'all}}
+do_test tableapi-2.3 {
+  for {set i 2} {$i<=50} {incr i} {
+    sqlite3_get_table_printf $::dbx \
+       "INSERT INTO xyz VALUES($i,'(%s)')" $i
+  }
+  sqlite3_get_table_printf $::dbx {
+    SELECT * FROM xyz ORDER BY a
+  } {}
+} {0 50 2 a b 1 {Hi Y'all} 2 (2) 3 (3) 4 (4) 5 (5) 6 (6) 7 (7) 8 (8) 9 (9) 10 (10) 11 (11) 12 (12) 13 (13) 14 (14) 15 (15) 16 (16) 17 (17) 18 (18) 19 (19) 20 (20) 21 (21) 22 (22) 23 (23) 24 (24) 25 (25) 26 (26) 27 (27) 28 (28) 29 (29) 30 (30) 31 (31) 32 (32) 33 (33) 34 (34) 35 (35) 36 (36) 37 (37) 38 (38) 39 (39) 40 (40) 41 (41) 42 (42) 43 (43) 44 (44) 45 (45) 46 (46) 47 (47) 48 (48) 49 (49) 50 (50)}
+do_test tableapi-2.3.1 {
+  sqlite3_get_table_printf $::dbx {
+    SELECT * FROM xyz  WHERE a>49 ORDER BY a
+  } {}
+} {0 1 2 a b 50 (50)}
+do_test tableapi-2.3.2 {
+  sqlite3_get_table_printf $::dbx {
+    SELECT * FROM xyz WHERE a>47 ORDER BY a
+  } {}
+} {0 3 2 a b 48 (48) 49 (49) 50 (50)}
+do_test tableapi-2.3.3 {
+  sqlite3_get_table_printf $::dbx {
+    SELECT * FROM xyz WHERE a>47 ORDER BY a; invalid
+  } {}
+} {1 {near "invalid": syntax error}}
+do_test tableapi-2.3.4 {
+  sqlite3_get_table_printf $::dbx {
+    SELECT * FROM xyz WHERE a>47 ORDER BY a
+  } {} 8
+} {0 a b 48 (48) 49 (49) 50 (50)}
+do_test tableapi-2.4 {
+  set manyquote ''''''''
+  append manyquote $manyquote
+  append manyquote $manyquote
+  append manyquote $manyquote
+  append manyquote $manyquote
+  append manyquote $manyquote
+  append manyquote $manyquote
+  set ::big_str "$manyquote Hello $manyquote"
+  sqlite3_get_table_printf $::dbx {
+    INSERT INTO xyz VALUES(51,'%q')
+  } $::big_str
+} {0 0 0}
+do_test tableapi-2.5 {
+  sqlite3_get_table_printf $::dbx {
+    SELECT * FROM xyz WHERE a>49 ORDER BY a;
+  } {}
+} "0 2 2 a b 50 (50) 51 \173$::big_str\175"
+do_test tableapi-2.6 {
+  sqlite3_get_table_printf $::dbx {
+    INSERT INTO xyz VALUES(52,NULL)
+  } {}
+  ifcapable subquery {
+    sqlite3_get_table_printf $::dbx {
+      SELECT * FROM xyz WHERE a IN (42,50,52) ORDER BY a DESC
+    } {}
+  } else {
+    sqlite3_get_table_printf $::dbx {
+      SELECT * FROM xyz WHERE a=42 OR a=50 OR a=52 ORDER BY a DESC
+    } {}
+  }
+} {0 3 2 a b 52 NULL 50 (50) 42 (42)}
+do_test tableapi-2.7 {
+  sqlite3_get_table_printf $::dbx {
+    SELECT * FROM xyz WHERE a>1000
+  } {}
+} {0 0 0}
+
+# Repeat all tests with the empty_result_callbacks pragma turned on
+#
+do_test tableapi-3.1 {
+  sqlite3_get_table_printf $::dbx {
+    ROLLBACK;
+    PRAGMA empty_result_callbacks = ON;
+    SELECT * FROM xyz WHERE b='%q'
+  } {Hi Y'all}
+} {0 1 2 a b 1 {Hi Y'all}}
+do_test tableapi-3.2 {
+  sqlite3_get_table_printf $::dbx {
+    SELECT * FROM xyz
+  } {}
+} {0 1 2 a b 1 {Hi Y'all}}
+do_test tableapi-3.3 {
+  for {set i 2} {$i<=50} {incr i} {
+    sqlite3_get_table_printf $::dbx \
+       "INSERT INTO xyz VALUES($i,'(%s)')" $i
+  }
+  sqlite3_get_table_printf $::dbx {
+    SELECT * FROM xyz ORDER BY a
+  } {}
+} {0 50 2 a b 1 {Hi Y'all} 2 (2) 3 (3) 4 (4) 5 (5) 6 (6) 7 (7) 8 (8) 9 (9) 10 (10) 11 (11) 12 (12) 13 (13) 14 (14) 15 (15) 16 (16) 17 (17) 18 (18) 19 (19) 20 (20) 21 (21) 22 (22) 23 (23) 24 (24) 25 (25) 26 (26) 27 (27) 28 (28) 29 (29) 30 (30) 31 (31) 32 (32) 33 (33) 34 (34) 35 (35) 36 (36) 37 (37) 38 (38) 39 (39) 40 (40) 41 (41) 42 (42) 43 (43) 44 (44) 45 (45) 46 (46) 47 (47) 48 (48) 49 (49) 50 (50)}
+do_test tableapi-3.3.1 {
+  sqlite3_get_table_printf $::dbx {
+    SELECT * FROM xyz  WHERE a>49 ORDER BY a
+  } {}
+} {0 1 2 a b 50 (50)}
+do_test tableapi-3.3.2 {
+  sqlite3_get_table_printf $::dbx {
+    SELECT * FROM xyz WHERE a>47 ORDER BY a
+  } {}
+} {0 3 2 a b 48 (48) 49 (49) 50 (50)}
+do_test tableapi-3.4 {
+  sqlite3_get_table_printf $::dbx {
+    INSERT INTO xyz VALUES(51,'%q')
+  } $::big_str
+} {0 0 0}
+do_test tableapi-3.5 {
+  sqlite3_get_table_printf $::dbx {
+    SELECT * FROM xyz WHERE a>49 ORDER BY a;
+  } {}
+} "0 2 2 a b 50 (50) 51 \173$::big_str\175"
+do_test tableapi-3.6 {
+  sqlite3_get_table_printf $::dbx {
+    INSERT INTO xyz VALUES(52,NULL)
+  } {}
+  ifcapable subquery {
+    sqlite3_get_table_printf $::dbx {
+      SELECT * FROM xyz WHERE a IN (42,50,52) ORDER BY a DESC
+    } {}
+  } else {
+    sqlite3_get_table_printf $::dbx {
+      SELECT * FROM xyz WHERE a=42 OR a=50 OR a=52 ORDER BY a DESC
+    } {}
+  }
+} {0 3 2 a b 52 NULL 50 (50) 42 (42)}
+do_test tableapi-3.7 {
+  sqlite3_get_table_printf $::dbx {
+    SELECT * FROM xyz WHERE a>1000
+  } {}
+} {0 0 2 a b}
+
+do_test tableapi-4.1 {
+  set rc [catch {
+    sqlite3_get_table_printf $::dbx {
+      SELECT * FROM xyz;  SELECT * FROM sqlite_master
+    } {}
+  } msg]
+  concat $rc $msg
+} {0 1 {sqlite3_get_table() called with two or more incompatible queries}}
+
+# A report on the mailing list says that the sqlite_get_table() api fails
+# on queries involving more than 40 columns.  The following code attempts
+# to test that complaint
+#
+do_test tableapi-5.1 {
+  set sql "CREATE TABLE t2("
+  set sep ""
+  for {set i 1} {$i<=100} {incr i} {
+    append sql ${sep}x$i
+    set sep ,
+  }
+  append sql )
+  sqlite3_get_table_printf $::dbx $sql {}
+  set sql "INSERT INTO t2 VALUES("
+  set sep ""
+  for {set i 1} {$i<=100} {incr i} {
+    append sql ${sep}$i
+    set sep ,
+  }
+  append sql )
+  sqlite3_get_table_printf $::dbx $sql {}
+  sqlite3_get_table_printf $::dbx {SELECT * FROM t2} {}
+} {0 1 100 x1 x2 x3 x4 x5 x6 x7 x8 x9 x10 x11 x12 x13 x14 x15 x16 x17 x18 x19 x20 x21 x22 x23 x24 x25 x26 x27 x28 x29 x30 x31 x32 x33 x34 x35 x36 x37 x38 x39 x40 x41 x42 x43 x44 x45 x46 x47 x48 x49 x50 x51 x52 x53 x54 x55 x56 x57 x58 x59 x60 x61 x62 x63 x64 x65 x66 x67 x68 x69 x70 x71 x72 x73 x74 x75 x76 x77 x78 x79 x80 x81 x82 x83 x84 x85 x86 x87 x88 x89 x90 x91 x92 x93 x94 x95 x96 x97 x98 x99 x100 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100}
+do_test tableapi-5.2 {
+  set sql "INSERT INTO t2 VALUES("
+  set sep ""
+  for {set i 1} {$i<=100} {incr i} {
+    append sql ${sep}[expr {$i+1000}]
+    set sep ,
+  }
+  append sql )
+  sqlite3_get_table_printf $::dbx $sql {}
+  sqlite3_get_table_printf $::dbx {SELECT * FROM t2} {}
+} {0 2 100 x1 x2 x3 x4 x5 x6 x7 x8 x9 x10 x11 x12 x13 x14 x15 x16 x17 x18 x19 x20 x21 x22 x23 x24 x25 x26 x27 x28 x29 x30 x31 x32 x33 x34 x35 x36 x37 x38 x39 x40 x41 x42 x43 x44 x45 x46 x47 x48 x49 x50 x51 x52 x53 x54 x55 x56 x57 x58 x59 x60 x61 x62 x63 x64 x65 x66 x67 x68 x69 x70 x71 x72 x73 x74 x75 x76 x77 x78 x79 x80 x81 x82 x83 x84 x85 x86 x87 x88 x89 x90 x91 x92 x93 x94 x95 x96 x97 x98 x99 x100 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100}
+
+ifcapable schema_pragmas {
+  do_test tableapi-6.1 {
+    sqlite3_get_table_printf $::dbx {PRAGMA user_version} {}
+  } {0 1 1 user_version 0}
+}
+
+# do_malloc_test closes and deletes the usual db connections and files on
+# each iteration.  $::dbx is a seperate connection, and on Windows, will
+# cause the file deletion of test.db to fail, so we move the close of $::dbx
+# up to here before the do_malloc_test.
+do_test tableapi-99.0 {
+  sqlite3_close $::dbx
+} {SQLITE_OK}
+
+do_malloc_test tableapi-7 -sqlprep {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a,b);
+  INSERT INTO t1 VALUES(1,2);
+  INSERT INTO t1 VALUES(3,4);
+  INSERT INTO t1 SELECT a+4, b+4 FROM t1;
+  INSERT INTO t1 SELECT a+8, b+8 FROM t1;
+} -tclbody {
+  set r [sqlite3_get_table_printf db {SELECT rowid, a, b FROM t1} {}]
+  if {[llength $r]<26} {error "out of memory"}
+}
+
+finish_test
diff --git a/test/tableopts.test b/test/tableopts.test
new file mode 100644
index 0000000000000000000000000000000000000000..0b2457ec4cfc97e616734e43c57e0ecef17167c6
--- /dev/null
+++ b/test/tableopts.test
@@ -0,0 +1,76 @@
+# 2013-10-19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test the operation of table-options in the WITH clause of the
+# CREATE TABLE statement.
+#
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tableopt-1.1 {
+  catchsql {
+    CREATE TABLE t1(a,b) WITHOUT rowid;
+  }
+} {1 {PRIMARY KEY missing on table t1}}
+do_test tableopt-1.1b {
+  catchsql {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY AUTOINCREMENT,b) WITHOUT rowid;
+  }
+} {1 {AUTOINCREMENT not allowed on WITHOUT ROWID tables}}
+do_test tableopt-1.2 {
+  catchsql {
+    CREATE TABLE t1(a,b) WITHOUT unknown2;
+  }
+} {1 {unknown table option: unknown2}}
+
+do_execsql_test tableopt-2.1 {
+  CREATE TABLE t1(a, b, c, PRIMARY KEY(a,b)) WITHOUT rowid;
+  INSERT INTO t1 VALUES(1,2,3),(2,3,4);
+  SELECT c FROM t1 WHERE a IN (1,2) ORDER BY b;
+} {3 4}
+do_test tableopt-2.1.1 {
+  catchsql {
+    SELECT rowid, * FROM t1;
+  }
+} {1 {no such column: rowid}}
+do_test tableopt-2.1.2 {
+  catchsql {
+    SELECT _rowid_, * FROM t1;
+  }
+} {1 {no such column: _rowid_}}
+do_test tableopt-2.1.3 {
+  catchsql {
+    SELECT oid, * FROM t1;
+  }
+} {1 {no such column: oid}}
+do_execsql_test tableopt-2.2 {
+  VACUUM;
+  SELECT c FROM t1 WHERE a IN (1,2) ORDER BY b;
+} {3 4}
+do_test tableopt-2.3 {
+  sqlite3 db2 test.db
+  db2 eval {SELECT c FROM t1 WHERE a IN (1,2) ORDER BY b;}
+} {3 4}
+db2 close
+
+# Make sure the "without" keyword is still usable as a table or
+# column name.
+#
+do_execsql_test tableopt-3.1 {
+  CREATE TABLE without(x INTEGER PRIMARY KEY, without TEXT);
+  INSERT INTO without VALUES(1, 'xyzzy'), (2, 'fizzle');
+  SELECT * FROM without WHERE without='xyzzy';
+} {1 xyzzy}
+
+  
+finish_test
diff --git a/test/tclsqlite.test b/test/tclsqlite.test
new file mode 100644
index 0000000000000000000000000000000000000000..0758abd822e7d305f204504b2ed2530ee306f136
--- /dev/null
+++ b/test/tclsqlite.test
@@ -0,0 +1,892 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for TCL interface to the
+# SQLite library. 
+#
+# Actually, all tests are based on the TCL interface, so the main
+# interface is pretty well tested.  This file contains some addition
+# tests for fringe issues that the main test suite does not cover.
+#
+# $Id: tclsqlite.test,v 1.73 2009/03/16 13:19:36 danielk1977 Exp $
+
+catch {sqlite3}
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix tcl
+
+# Check the error messages generated by tclsqlite
+#
+set r "sqlite_orig HANDLE ?FILENAME? ?-vfs VFSNAME? ?-readonly BOOLEAN? ?-create BOOLEAN? ?-nofollow BOOLEAN? ?-nomutex BOOLEAN? ?-fullmutex BOOLEAN? ?-uri BOOLEAN?"
+if {[sqlite3 -has-codec]} {
+  append r " ?-key CODECKEY?"
+}
+do_test tcl-1.1 {
+  set v [catch {sqlite3 -bogus} msg]
+  regsub {really_sqlite3} $msg {sqlite3} msg
+  lappend v $msg
+} [list 1 "wrong # args: should be \"$r\""]
+do_test tcl-1.1.1 {
+  set v [catch {sqlite3} msg]
+  regsub {really_sqlite3} $msg {sqlite3} msg
+  lappend v $msg
+} [list 1 "wrong # args: should be \"$r\""]
+do_test tcl-1.2 {
+  set v [catch {db bogus} msg]
+  lappend v $msg
+} {1 {bad option "bogus": must be authorizer, backup, bind_fallback, busy, cache, changes, close, collate, collation_needed, commit_hook, complete, config, copy, deserialize, enable_load_extension, errorcode, erroroffset, eval, exists, function, incrblob, interrupt, last_insert_rowid, nullvalue, onecolumn, preupdate, profile, progress, rekey, restore, rollback_hook, serialize, status, timeout, total_changes, trace, trace_v2, transaction, unlock_notify, update_hook, version, or wal_hook}}
+do_test tcl-1.2.1 {
+  set v [catch {db cache bogus} msg]
+  lappend v $msg
+} {1 {bad option "bogus": must be flush or size}}
+do_test tcl-1.2.2 {
+  set v [catch {db cache} msg]
+  lappend v $msg
+} {1 {wrong # args: should be "db cache option ?arg?"}}
+do_test tcl-1.3 {
+  execsql {CREATE TABLE t1(a int, b int)}
+  execsql {INSERT INTO t1 VALUES(10,20)}
+  set v [catch {
+    db eval {SELECT * FROM t1} data {
+      error "The error message"
+    }
+  } msg]
+  lappend v $msg
+} {1 {The error message}}
+do_test tcl-1.4 {
+  set v [catch {
+    db eval {SELECT * FROM t2} data {
+      error "The error message"
+    }
+  } msg]
+  lappend v $msg
+} {1 {no such table: t2}}
+do_test tcl-1.5 {
+  set v [catch {
+    db eval {SELECT * FROM t1} data {
+      break
+    }
+  } msg]
+  lappend v $msg
+} {0 {}}
+catch {expr x*} msg
+do_test tcl-1.6 {
+  set v [catch {
+    db eval {SELECT * FROM t1} data {
+      expr x*
+    }
+  } msg]
+  lappend v $msg
+} [list 1 $msg]
+do_test tcl-1.7 {
+  set v [catch {db} msg]
+  lappend v $msg
+} {1 {wrong # args: should be "db SUBCOMMAND ..."}}
+if {[catch {db auth {}}]==0} {
+  do_test tcl-1.8 {
+    set v [catch {db authorizer 1 2 3} msg]
+    lappend v $msg
+  } {1 {wrong # args: should be "db authorizer ?CALLBACK?"}}
+}
+do_test tcl-1.9 {
+  set v [catch {db busy 1 2 3} msg]
+  lappend v $msg
+} {1 {wrong # args: should be "db busy CALLBACK"}}
+do_test tcl-1.10 {
+  set v [catch {db progress 1} msg]
+  lappend v $msg
+} {1 {wrong # args: should be "db progress N CALLBACK"}}
+do_test tcl-1.11 {
+  set v [catch {db changes xyz} msg]
+  lappend v $msg
+} {1 {wrong # args: should be "db changes "}}
+do_test tcl-1.12 {
+  set v [catch {db commit_hook a b c} msg]
+  lappend v $msg
+} {1 {wrong # args: should be "db commit_hook ?CALLBACK?"}}
+ifcapable {complete} {
+  do_test tcl-1.13 {
+    set v [catch {db complete} msg]
+    lappend v $msg
+  } {1 {wrong # args: should be "db complete SQL"}}
+}
+do_test tcl-1.14 {
+  set v [catch {db eval} msg]
+  lappend v $msg
+} {1 {wrong # args: should be "db eval ?OPTIONS? SQL ?ARRAY-NAME? ?SCRIPT?"}}
+do_test tcl-1.15 {
+  set v [catch {db function} msg]
+  lappend v $msg
+} {1 {wrong # args: should be "db function NAME ?SWITCHES? SCRIPT"}}
+do_test tcl-1.16 {
+  set v [catch {db last_insert_rowid xyz} msg]
+  lappend v $msg
+} {1 {wrong # args: should be "db last_insert_rowid "}}
+do_test tcl-1.17 {
+  set v [catch {db rekey} msg]
+  lappend v $msg
+} {1 {wrong # args: should be "db rekey KEY"}}
+do_test tcl-1.18 {
+  set v [catch {db timeout} msg]
+  lappend v $msg
+} {1 {wrong # args: should be "db timeout MILLISECONDS"}}
+do_test tcl-1.19 {
+  set v [catch {db collate} msg]
+  lappend v $msg
+} {1 {wrong # args: should be "db collate NAME SCRIPT"}}
+do_test tcl-1.20 {
+  set v [catch {db collation_needed} msg]
+  lappend v $msg
+} {1 {wrong # args: should be "db collation_needed SCRIPT"}}
+do_test tcl-1.21 {
+  set v [catch {db total_changes xyz} msg]
+  lappend v $msg
+} {1 {wrong # args: should be "db total_changes "}}
+do_test tcl-1.22 {
+  set v [catch {db copy} msg]
+  lappend v $msg
+} {1 {wrong # args: should be "db copy CONFLICT-ALGORITHM TABLE FILENAME ?SEPARATOR? ?NULLINDICATOR?"}}
+do_test tcl-1.23 {
+  set v [catch {sqlite3 db2 test.db -vfs nosuchvfs} msg]
+  lappend v $msg
+} {1 {no such vfs: nosuchvfs}}
+
+catch {unset ::result}
+do_test tcl-2.1 {
+  execsql "CREATE TABLE t\u0123x(a int, b\u1235 float)"
+} {}
+ifcapable schema_pragmas {
+  do_test tcl-2.2 {
+    execsql "PRAGMA table_info(t\u0123x)"
+  } "0 a INT 0 {} 0 1 b\u1235 float 0 {} 0"
+}
+do_test tcl-2.3 {
+  execsql "INSERT INTO t\u0123x VALUES(1,2.3)"
+  db eval "SELECT * FROM t\u0123x" result break
+  set result(*)
+} "a b\u1235"
+
+
+# Test the onecolumn method
+#
+do_test tcl-3.1 {
+  execsql {
+    INSERT INTO t1 SELECT a*2, b*2 FROM t1;
+    INSERT INTO t1 SELECT a*2+1, b*2+1 FROM t1;
+    INSERT INTO t1 SELECT a*2+3, b*2+3 FROM t1;
+  }
+  set rc [catch {db onecolumn {SELECT * FROM t1 ORDER BY a}} msg]
+  lappend rc $msg
+} {0 10}
+do_test tcl-3.2 {
+  db onecolumn {SELECT * FROM t1 WHERE a<0}
+} {}
+do_test tcl-3.3 {
+  set rc [catch {db onecolumn} errmsg]
+  lappend rc $errmsg
+} {1 {wrong # args: should be "db onecolumn SQL"}}
+do_test tcl-3.4 {
+  set rc [catch {db onecolumn {SELECT bogus}} errmsg]
+  lappend rc $errmsg
+} {1 {no such column: bogus}}
+ifcapable {tclvar} {
+  do_test tcl-3.5 {
+    set b 50
+    set rc [catch {db one {SELECT * FROM t1 WHERE b>$b}} msg]
+    lappend rc $msg
+  } {0 41}
+  do_test tcl-3.6 {
+    set b 500
+    set rc [catch {db one {SELECT * FROM t1 WHERE b>$b}} msg]
+    lappend rc $msg
+  } {0 {}}
+  do_test tcl-3.7 {
+    set b 500
+    set rc [catch {db one {
+      INSERT INTO t1 VALUES(99,510);
+      SELECT * FROM t1 WHERE b>$b
+    }} msg]
+    lappend rc $msg
+  } {0 99}
+}
+ifcapable {!tclvar} {
+   execsql {INSERT INTO t1 VALUES(99,510)}
+}
+
+# Turn the busy handler on and off
+#
+do_test tcl-4.1 {
+  proc busy_callback {cnt} {
+    break
+  }
+  db busy busy_callback
+  db busy
+} {busy_callback}
+do_test tcl-4.2 {
+  db busy {}
+  db busy
+} {}
+
+ifcapable {tclvar} {
+  # Parsing of TCL variable names within SQL into bound parameters.
+  #
+  do_test tcl-5.1 {
+    execsql {CREATE TABLE t3(a,b,c)}
+    catch {unset x}
+    set x(1) A
+    set x(2) B
+    execsql {
+      INSERT INTO t3 VALUES($::x(1),$::x(2),$::x(3));
+      SELECT * FROM t3
+    }
+  } {A B {}}
+  do_test tcl-5.2 {
+    execsql {
+      SELECT typeof(a), typeof(b), typeof(c) FROM t3
+    }
+  } {text text null}
+  do_test tcl-5.3 {
+    catch {unset x}
+    set x [binary format h12 686900686f00]
+    execsql {
+      UPDATE t3 SET a=$::x;
+    }
+    db eval {
+      SELECT a FROM t3
+    } break
+    binary scan $a h12 adata
+    set adata
+  } {686900686f00}
+  do_test tcl-5.4 {
+    execsql {
+      SELECT typeof(a), typeof(b), typeof(c) FROM t3
+    }
+  } {blob text null}
+}
+
+# Operation of "break" and "continue" within row scripts
+#
+do_test tcl-6.1 {
+  db eval {SELECT * FROM t1} {
+    break
+  }
+  lappend a $b
+} {10 20}
+do_test tcl-6.2 {
+  set cnt 0
+  db eval {SELECT * FROM t1} {
+    if {$a>40} continue
+    incr cnt
+  }
+  set cnt
+} {4}
+do_test tcl-6.3 {
+  set cnt 0
+  db eval {SELECT * FROM t1} {
+    if {$a<40} continue
+    incr cnt
+  }
+  set cnt
+} {5}
+do_test tcl-6.4 {
+  proc return_test {x} {
+    db eval {SELECT * FROM t1} {
+      if {$a==$x} {return $b}
+    }
+  }
+  return_test 10
+} 20
+do_test tcl-6.5 {
+  return_test 20
+} 40
+do_test tcl-6.6 {
+  return_test 99
+} 510
+do_test tcl-6.7 {
+  return_test 0
+} {}
+
+do_test tcl-7.1 {
+  db version
+  expr 0
+} {0}
+
+# modify and reset the NULL representation
+#
+do_test tcl-8.1 {
+  db nullvalue NaN
+  execsql {INSERT INTO t1 VALUES(30,NULL)}
+  db eval {SELECT * FROM t1 WHERE b IS NULL}
+} {30 NaN}
+proc concatFunc args {return [join $args {}]}
+do_test tcl-8.2 {
+  db function concat concatFunc
+  db eval {SELECT concat('a', b, 'z') FROM t1 WHERE b is NULL}
+} {aNaNz}
+do_test tcl-8.3 {
+  db nullvalue NULL
+  db nullvalue
+} {NULL}
+do_test tcl-8.4 {
+  db nullvalue {}
+  db eval {SELECT * FROM t1 WHERE b IS NULL}
+} {30 {}}
+do_test tcl-8.5 {
+  db function concat concatFunc
+  db eval {SELECT concat('a', b, 'z') FROM t1 WHERE b is NULL}
+} {az}
+
+# Test the return type of user-defined functions
+#
+do_test tcl-9.1 {
+  db function ret_str {return "hi"}
+  execsql {SELECT typeof(ret_str())}
+} {text}
+do_test tcl-9.2 {
+  db function ret_dbl {return [expr {rand()*0.5}]}
+  execsql {SELECT typeof(ret_dbl())}
+} {real}
+do_test tcl-9.3 {
+  db function ret_int {return [expr {int(rand()*200)}]}
+  execsql {SELECT typeof(ret_int())}
+} {integer}
+
+# Recursive calls to the same user-defined function
+#
+ifcapable tclvar {
+  do_test tcl-9.10 {
+    proc userfunc_r1 {n} {
+      if {$n<=0} {return 0}
+      set nm1 [expr {$n-1}]
+      return [expr {[db eval {SELECT r1($nm1)}]+$n}]
+    }
+    db function r1 userfunc_r1
+    execsql {SELECT r1(10)}
+  } {55}
+  # Fails under -fsanitize=address,undefined due to stack overflow
+  # do_test tcl-9.11 {
+  #   execsql {SELECT r1(100)}
+  # } {5050}
+}
+
+# Tests for the new transaction method
+#
+do_test tcl-10.1 {
+  db transaction {}
+} {}
+do_test tcl-10.2 {
+  db transaction deferred {}
+} {}
+do_test tcl-10.3 {
+  db transaction immediate {}
+} {}
+do_test tcl-10.4 {
+  db transaction exclusive {}
+} {}
+do_test tcl-10.5 {
+  set rc [catch {db transaction xyzzy {}} msg]
+  lappend rc $msg
+} {1 {bad transaction type "xyzzy": must be deferred, exclusive, or immediate}}
+do_test tcl-10.6 {
+  set rc [catch {db transaction {error test-error}} msg]
+  lappend rc $msg
+} {1 test-error}
+do_test tcl-10.7 {
+  db transaction {
+    db eval {CREATE TABLE t4(x)}
+    db transaction {
+      db eval {INSERT INTO t4 VALUES(1)}
+    }
+  }
+  db eval {SELECT * FROM t4}
+} 1
+do_test tcl-10.8 {
+  catch {
+    db transaction {
+      db eval {INSERT INTO t4 VALUES(2)}
+      db eval {INSERT INTO t4 VALUES(3)}
+      db eval {INSERT INTO t4 VALUES(4)}
+      error test-error
+    }
+  }
+  db eval {SELECT * FROM t4}
+} 1
+do_test tcl-10.9 {
+  db transaction {
+    db eval {INSERT INTO t4 VALUES(2)}
+    catch {
+      db transaction {
+        db eval {INSERT INTO t4 VALUES(3)}
+        db eval {INSERT INTO t4 VALUES(4)}
+        error test-error
+      }
+    }
+  }
+  db eval {SELECT * FROM t4}
+} {1 2}
+do_test tcl-10.10 {
+  for {set i 0} {$i<1} {incr i} {
+    db transaction {
+      db eval {INSERT INTO t4 VALUES(5)}
+      continue
+    }
+    error "This line should not be run"
+  }
+  db eval {SELECT * FROM t4}
+} {1 2 5}
+do_test tcl-10.11 {
+  for {set i 0} {$i<10} {incr i} {
+    db transaction {
+      db eval {INSERT INTO t4 VALUES(6)}
+      break
+    }
+  }
+  db eval {SELECT * FROM t4}
+} {1 2 5 6}
+do_test tcl-10.12 {
+  set rc [catch {
+    for {set i 0} {$i<10} {incr i} {
+      db transaction {
+        db eval {INSERT INTO t4 VALUES(7)}
+        return
+      }
+    }
+  }]
+} {2}
+do_test tcl-10.13 {
+  db eval {SELECT * FROM t4}
+} {1 2 5 6 7}
+
+# Now test that [db transaction] commands may be nested with 
+# the expected results.
+#
+do_test tcl-10.14 {
+  db transaction {
+    db eval {
+      DELETE FROM t4;
+      INSERT INTO t4 VALUES('one');
+    }
+
+    catch { 
+      db transaction {
+        db eval { INSERT INTO t4 VALUES('two') }
+        db transaction {
+          db eval { INSERT INTO t4 VALUES('three') }
+          error "throw an error!"
+        }
+      }
+    }
+  }
+
+  db eval {SELECT * FROM t4}
+} {one}
+do_test tcl-10.15 {
+  # Make sure a transaction has not been left open.
+  db eval {BEGIN ; COMMIT}
+} {}
+do_test tcl-10.16 {
+  db transaction {
+    db eval { INSERT INTO t4 VALUES('two'); }
+    db transaction {
+      db eval { INSERT INTO t4 VALUES('three') }
+      db transaction {
+        db eval { INSERT INTO t4 VALUES('four') }
+      }
+    }
+  }
+  db eval {SELECT * FROM t4}
+} {one two three four}
+do_test tcl-10.17 {
+  catch {
+    db transaction {
+      db eval { INSERT INTO t4 VALUES('A'); }
+      db transaction {
+        db eval { INSERT INTO t4 VALUES('B') }
+        db transaction {
+          db eval { INSERT INTO t4 VALUES('C') }
+          error "throw an error!"
+        }
+      }
+    }
+  }
+  db eval {SELECT * FROM t4}
+} {one two three four}
+do_test tcl-10.18 {
+  # Make sure a transaction has not been left open.
+  db eval {BEGIN ; COMMIT}
+} {}
+
+# Mess up a [db transaction] command by locking the database using a
+# second connection when it tries to commit. Make sure the transaction
+# is not still open after the "database is locked" exception is thrown.
+#
+do_test tcl-10.18 {
+  sqlite3 db2 test.db
+  db2 eval {
+    BEGIN;
+    SELECT * FROM sqlite_master;
+  }
+
+  set rc [catch {
+    db transaction {
+      db eval {INSERT INTO t4 VALUES('five')}
+    }
+  } msg]
+  list $rc $msg
+} {1 {database is locked}}
+do_test tcl-10.19 {
+  db eval {BEGIN ; COMMIT}
+} {}
+
+# Thwart a [db transaction] command by locking the database using a
+# second connection with "BEGIN EXCLUSIVE". Make sure no transaction is 
+# open after the "database is locked" exception is thrown.
+#
+do_test tcl-10.20 {
+  db2 eval {
+    COMMIT;
+    BEGIN EXCLUSIVE;
+  }
+  set rc [catch {
+    db transaction {
+      db eval {INSERT INTO t4 VALUES('five')}
+    }
+  } msg]
+  list $rc $msg
+} {1 {database is locked}}
+do_test tcl-10.21 {
+  db2 close
+  db eval {BEGIN ; COMMIT}
+} {}
+do_test tcl-10.22 {
+  sqlite3 db2 test.db
+  db transaction exclusive {
+    catch { db2 eval {SELECT * FROM sqlite_master} } msg
+    set msg "db2: $msg"
+  }
+  set msg
+} {db2: database is locked}
+db2 close
+
+do_test tcl-11.1 {
+  db eval {INSERT INTO t4 VALUES(6)}
+  db exists {SELECT x,x*2,x+x FROM t4 WHERE x==6}
+} {1}
+do_test tcl-11.2 {
+  db exists {SELECT 0 FROM t4 WHERE x==6}
+} {1}
+do_test tcl-11.3 {
+  db exists {SELECT 1 FROM t4 WHERE x==8}
+} {0}
+do_test tcl-11.3.1 {
+  tcl_objproc db exists {SELECT 1 FROM t4 WHERE x==8}
+} {0}
+
+do_test tcl-12.1 {
+  unset -nocomplain a b c version
+  set version [db version]
+  scan $version "%d.%d.%d" a b c
+  expr $a*1000000 + $b*1000 + $c
+} [sqlite3_libversion_number]
+
+
+# Check to see that when bindings of the form @aaa are used instead
+# of $aaa, that objects are treated as bytearray and are inserted
+# as BLOBs.
+#
+ifcapable tclvar {
+  do_test tcl-13.1 {
+    db eval {CREATE TABLE t5(x BLOB)}
+    set x abc123
+    db eval {INSERT INTO t5 VALUES($x)}
+    db eval {SELECT typeof(x) FROM t5}
+  } {text}
+  do_test tcl-13.2 {
+    binary scan $x H notUsed
+    db eval {
+      DELETE FROM t5;
+      INSERT INTO t5 VALUES($x);
+      SELECT typeof(x) FROM t5;
+    }
+  } {text}
+  do_test tcl-13.3 {
+    db eval {
+      DELETE FROM t5;
+      INSERT INTO t5 VALUES(@x);
+      SELECT typeof(x) FROM t5;
+    }
+  } {blob}
+  do_test tcl-13.4 {
+    set y 1234
+    db eval {
+      DELETE FROM t5;
+      INSERT INTO t5 VALUES(@y);
+      SELECT hex(x), typeof(x) FROM t5
+    }
+  } {31323334 blob}
+}
+
+db func xCall xCall
+proc xCall {} { return "value" }
+do_execsql_test tcl-14.1 {
+  CREATE TABLE t6(x);
+  INSERT INTO t6 VALUES(1);
+}
+do_test tcl-14.2 {
+  db one {SELECT x FROM t6 WHERE xCall()!='value'}
+} {}
+
+# Verify that the "exists" and "onecolumn" methods work when
+# a "profile" is registered.
+#
+catch {db close}
+sqlite3 db :memory:
+proc noop-profile {args} {
+  return
+}
+do_test tcl-15.0 {
+  db eval {CREATE TABLE t1(a); INSERT INTO t1 VALUES(1),(2),(3);}
+  db onecolumn {SELECT a FROM t1 WHERE a>2}
+} {3}
+do_test tcl-15.1 {
+  db exists {SELECT a FROM t1 WHERE a>2}
+} {1}
+do_test tcl-15.2 {
+  db exists {SELECT a FROM t1 WHERE a>3}
+} {0}
+db profile noop-profile
+do_test tcl-15.3 {
+  db onecolumn {SELECT a FROM t1 WHERE a>2}
+} {3}
+do_test tcl-15.4 {
+  db exists {SELECT a FROM t1 WHERE a>2}
+} {1}
+do_test tcl-15.5 {
+  db exists {SELECT a FROM t1 WHERE a>3}
+} {0}
+
+
+# 2017-06-26: The --withoutnulls flag to "db eval".
+#
+# In the "db eval --withoutnulls SQL ARRAY" form, NULL results cause the
+# corresponding array entry to be unset.  The default behavior (without
+# the -withoutnulls flags) is for the corresponding array value to get
+# the [db nullvalue] string.
+#
+catch {db close}
+forcedelete test.db
+sqlite3 db test.db
+do_execsql_test tcl-16.100 {
+  CREATE TABLE t1(a,b);
+  INSERT INTO t1 VALUES(1,2),(2,NULL),(3,'xyz');
+}
+do_test tcl-16.101 {
+  set res {}
+  unset -nocomplain x
+  db eval {SELECT * FROM t1} x {
+    lappend res $x(a) [array names x]
+  }
+  set res
+} {1 {a b *} 2 {a b *} 3 {a b *}}
+do_test tcl-16.102 {
+  set res [catch {
+    db eval -unknown {SELECT * FROM t1} x {
+      lappend res $x(a) [array names x]
+    }
+  } rc]
+  lappend res $rc
+} {1 {unknown option: "-unknown"}}
+do_test tcl-16.103 {
+  set res {}
+  unset -nocomplain x
+  db eval -withoutnulls {SELECT * FROM t1} x {
+    lappend res $x(a) [array names x]
+  }
+  set res
+} {1 {a b *} 2 {a *} 3 {a b *}}
+
+#-------------------------------------------------------------------------
+# Test the -type option to [db function].
+#
+reset_db
+proc add {a b} { return [expr $a + $b] }
+proc ret {a} { return $a }
+
+db function add_i -returntype integer add 
+db function add_r -ret        real    add
+db function add_t -return     text    add 
+db function add_b -returntype blob    add 
+db function add_a -returntype any     add 
+
+db function ret_i -returntype int     ret 
+db function ret_r -returntype real    ret
+db function ret_t -returntype text    ret 
+db function ret_b -returntype blob    ret 
+db function ret_a -r          any     ret 
+
+do_execsql_test 17.0 {
+  SELECT quote( add_i(2, 3) );
+  SELECT quote( add_r(2, 3) ); 
+  SELECT quote( add_t(2, 3) ); 
+  SELECT quote( add_b(2, 3) ); 
+  SELECT quote( add_a(2, 3) ); 
+} {5 5.0 '5' X'35' 5}
+
+do_execsql_test 17.1 {
+  SELECT quote( add_i(2.2, 3.3) );
+  SELECT quote( add_r(2.2, 3.3) ); 
+  SELECT quote( add_t(2.2, 3.3) ); 
+  SELECT quote( add_b(2.2, 3.3) ); 
+  SELECT quote( add_a(2.2, 3.3) ); 
+} {5.5 5.5 '5.5' X'352E35' 5.5}
+
+do_execsql_test 17.2 {
+  SELECT quote( ret_i(2.5) );
+  SELECT quote( ret_r(2.5) ); 
+  SELECT quote( ret_t(2.5) ); 
+  SELECT quote( ret_b(2.5) ); 
+  SELECT quote( ret_a(2.5) ); 
+} {2.5 2.5 '2.5' X'322E35' 2.5}
+
+do_execsql_test 17.3 {
+  SELECT quote( ret_i('2.5') );
+  SELECT quote( ret_r('2.5') ); 
+  SELECT quote( ret_t('2.5') ); 
+  SELECT quote( ret_b('2.5') ); 
+  SELECT quote( ret_a('2.5') ); 
+} {2.5 2.5 '2.5' X'322E35' '2.5'}
+
+do_execsql_test 17.4 {
+  SELECT quote( ret_i('abc') );
+  SELECT quote( ret_r('abc') ); 
+  SELECT quote( ret_t('abc') ); 
+  SELECT quote( ret_b('abc') ); 
+  SELECT quote( ret_a('abc') ); 
+} {'abc' 'abc' 'abc' X'616263' 'abc'}
+
+do_execsql_test 17.5 {
+  SELECT quote( ret_i(X'616263') );
+  SELECT quote( ret_r(X'616263') ); 
+  SELECT quote( ret_t(X'616263') ); 
+  SELECT quote( ret_b(X'616263') ); 
+  SELECT quote( ret_a(X'616263') ); 
+} {'abc' 'abc' 'abc' X'616263' X'616263'}
+
+do_test 17.6.1 {
+  list [catch { db function xyz -return object ret } msg] $msg
+} {1 {bad type "object": must be integer, real, text, blob, or any}}
+
+do_test 17.6.2 {
+  list [catch { db function xyz -return ret } msg] $msg
+} {1 {option requires an argument: -return}}
+
+do_test 17.6.3 {
+  list [catch { db function xyz -n object ret } msg] $msg
+} {1 {bad option "-n": must be -argcount, -deterministic, -directonly, -innocuous, or -returntype}}
+
+# 2019-02-28: The "bind_fallback" command.
+#
+do_test 18.100 {
+  unset -nocomplain bindings abc def ghi jkl mno e01 e02
+  set bindings(abc) [expr {1+2}]
+  set bindings(def) {hello}
+  set bindings(ghi) [expr {3.1415926*1.0}]
+  proc bind_callback {nm} {
+    global bindings
+    set n2 [string range $nm 1 end]
+    if {[info exists bindings($n2)]} {
+      return $bindings($n2)
+    }
+    if {[string match e* $n2]} {
+      error "no such variable: $nm"
+    }
+    return -code return {}
+  }
+  db bind_fallback bind_callback
+  db eval {SELECT $abc, typeof($abc), $def, typeof($def), $ghi, typeof($ghi)}
+} {3 integer hello text 3.1415926 real}
+do_test 18.110 {
+  db eval {SELECT quote(@def), typeof(@def)}
+} {X'68656C6C6F' blob}
+do_execsql_test 18.120 {
+  SELECT typeof($mno);
+} {null}
+do_catchsql_test 18.130 {
+  SELECT $e01;
+} {1 {no such variable: $e01}}
+do_test 18.140 {
+  db bind_fallback
+} {bind_callback}
+do_test 18.200 {
+  db bind_fallback {}
+  db eval {SELECT $abc, typeof($abc), $def, typeof($def), $ghi, typeof($ghi)}
+} {{} null {} null {} null}
+do_test 18.300 {
+  unset -nocomplain bindings
+  proc bind_callback {nm} {lappend ::bindings $nm}
+  db bind_fallback bind_callback
+  db eval {SELECT $abc, @def, $ghi(123), :mno}
+  set bindings
+} {{$abc} @def {$ghi(123)} :mno}
+do_test 18.900 {
+  set rc [catch {db bind_fallback a b} msg]
+  lappend rc $msg
+} {1 {wrong # args: should be "db bind_fallback ?CALLBACK?"}}
+do_test 18.910 {
+  db bind_fallback bind_fallback_does_not_exist
+} {}
+do_catchsql_test 19.911 {
+  SELECT $abc, typeof($abc), $def, typeof($def), $ghi, typeof($ghi);
+} {1 {invalid command name "bind_fallback_does_not_exist"}}
+db bind_fallback {}
+
+#-------------------------------------------------------------------------
+do_test 20.0 {
+  db transaction {
+    db close
+  }
+} {}
+
+do_test 20.1 {
+  sqlite3 db test.db
+  set rc [catch {
+    db eval {SELECT 1 UNION ALL SELECT 2 UNION ALL SELECT 3} { db close }
+  } msg]
+  list $rc $msg
+} {1 {invalid command name "db"}}
+  
+
+proc closedb {} {
+  db close
+  return 10
+}
+proc func1 {} { return 1 }
+
+sqlite3 db test.db
+db func closedb closedb
+db func func1 func1
+
+do_test 20.2 {
+  set rc [catch {
+    db eval {
+      SELECT closedb(),func1() UNION ALL SELECT 20,30 UNION ALL SELECT 30,40
+    }
+  } msg]
+  list $rc $msg
+} {0 {10 1 20 30 30 40}}
+
+sqlite3 db :memory:
+do_test 21.1 {
+  catch {db eval {SELECT 1 2 3;}} msg
+  db erroroffset
+} {9}
+
+finish_test
diff --git a/test/tempdb.test b/test/tempdb.test
new file mode 100644
index 0000000000000000000000000000000000000000..a32ef06f445fe9f6ab820f10dbcc61bbefa0d5af
--- /dev/null
+++ b/test/tempdb.test
@@ -0,0 +1,98 @@
+# 2008 April 14
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+# The focus of this file is in making sure that rolling back
+# a statement journal works correctly.
+#
+# $Id: tempdb.test,v 1.4 2009/06/05 17:09:12 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+if {[atomic_batch_write test.db]} {
+  finish_test
+  return
+}
+
+# Use a temporary database.
+#
+db close
+sqlite3 db {}
+
+# Force a statement journal rollback on a database file that
+# has never been opened.
+#
+do_test tempdb-1.1 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t1(x UNIQUE);
+    CREATE TABLE t2(y);
+    INSERT INTO t2 VALUES('hello');
+    INSERT INTO t2 VALUES(NULL);
+  }
+  # Because of the transaction, the temporary database file
+  # has not even been opened yet.  The following statement
+  # will cause a statement journal rollback on this non-existant
+  # file.
+  catchsql {
+    INSERT INTO t1
+    SELECT CASE WHEN y IS NULL THEN test_error('oops', 11) ELSE y END
+      FROM t2;
+  }
+} {1 oops}
+
+# Verify that no writes occurred in t1.
+#
+do_test tempdb-1.2 {
+  execsql {
+    SELECT * FROM t1
+  }
+} {}
+
+do_test tempdb-2.1 {
+  # Set $::jrnl_in_memory if the journal file is expected to be in-memory.
+  # Similarly, set $::subj_in_memory if the sub-journal file is expected
+  # to be in memory. These variables are used to calculate the expected
+  # number of open files in the test cases below.
+  #
+  set jrnl_in_memory [expr {[permutation] eq "inmemory_journal"}]
+  set subj_in_memory [expr {$jrnl_in_memory || $TEMP_STORE>=2}]
+
+  db close
+  sqlite3 db test.db
+} {}
+do_test tempdb-2.2 {
+  execsql {
+    CREATE TABLE t1 (a PRIMARY KEY, b, c);
+    CREATE TABLE t2 (a, b, c);
+    BEGIN;
+      INSERT INTO t1 VALUES(1, 2, 3);
+      INSERT INTO t1 VALUES(4, 5, 6);
+      INSERT INTO t2 VALUES(7, 8, 9);
+      INSERT INTO t2 SELECT * FROM t1;
+  }
+  catchsql { INSERT INTO t1 SELECT * FROM t2 }
+  set sqlite_open_file_count
+} [expr 1 + (0==$jrnl_in_memory)]
+do_test tempdb-2.3 {
+  execsql {
+    PRAGMA temp_store = 'memory';
+    ROLLBACK;
+    BEGIN;
+      INSERT INTO t1 VALUES(1, 2, 3);
+      INSERT INTO t1 VALUES(4, 5, 6);
+      INSERT INTO t2 SELECT * FROM t1;
+  }
+  catchsql { INSERT INTO t1 SELECT * FROM t2 }
+  set sqlite_open_file_count
+} [expr 1 + (0==$jrnl_in_memory)]
+
+finish_test
diff --git a/test/tempdb2.test b/test/tempdb2.test
new file mode 100644
index 0000000000000000000000000000000000000000..37cb4b33badf5fb1aa92ec7218344e2290f90fb4
--- /dev/null
+++ b/test/tempdb2.test
@@ -0,0 +1,99 @@
+# 2016 March 3
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix tempdb2
+
+db close
+sqlite3 db ""
+
+set unlocked unlocked
+if {$::TEMP_STORE>=2} { set unlocked unknown }
+
+proc int2str {i} { string range [string repeat "$i." 450] 0 899 }
+db func int2str int2str
+
+#-------------------------------------------------------------------------
+#
+#  1.1: Write a big transaction to the db. One so large that it forces
+#       the file to be created and the cache flushed to disk on COMMIT.
+#
+#  1.2: Write a small transaction - one small enough that it remains in
+#       memory on COMMIT. All the pages of table [t1] are now dirty.
+#
+#  1.3: Delete the contents of [t1]. This moves all of its leaves to the
+#       free-list and causes the btree layer to call PagerDontWrite() on
+#       each of them.
+#
+#       Then do a big update on table [t2]. So big that the former leaves
+#       of [t1] are forced out of the cache. Then roll back the transaction.
+#       If the PagerDontWrite() calls are honoured and the data is not written
+#       to disk, the update made in test 1.2 will be lost at this point. Or, if
+#       they are ignored (as they should be for temp databases), the update
+#       will be safely written out to disk before the cache entries are
+#       discarded.
+#
+do_execsql_test 1.1 {
+  PRAGMA page_size=1024;
+  PRAGMA cache_size=50;
+
+  BEGIN;
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+    INSERT INTO t1 VALUES(1, int2str(1));
+    INSERT INTO t1 VALUES(2, int2str(1));
+    INSERT INTO t1 VALUES(3, int2str(1));
+
+    CREATE TABLE t2(a INTEGER PRIMARY KEY, b);
+    WITH c(x) AS ( VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<100 ) 
+    INSERT INTO t2 SELECT x, int2str(x) FROM c;
+  COMMIT;
+
+  PRAGMA lock_status;
+} [list main $unlocked temp closed]
+
+do_execsql_test 1.2 {
+  UPDATE t1 SET b=int2str(2);
+  SELECT b=int2str(2) FROM t1
+} {1 1 1}
+
+do_execsql_test 1.3 {
+  BEGIN;
+    DELETE FROM t1;
+    UPDATE t2 SET b=int2str(a+1);
+  ROLLBACK;
+}
+
+do_execsql_test 1.4 {
+  SELECT b=int2str(2) FROM t1
+} {1 1 1}
+
+#-------------------------------------------------------------------------
+db close
+sqlite3 db ""
+db func int2str int2str
+
+do_execsql_test 2.0 {
+  PRAGMA cache_size = -100;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+  WITH c(x) AS ( VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<100 ) 
+    INSERT INTO t1 SELECT x, int2str(x) FROM c;
+}
+
+do_execsql_test 2.1 {
+  INSERT INTO t1 VALUES(10001, int2str(1001) || int2str(1001) || int2str(1001));
+}
+
+do_execsql_test 2.2 {
+  SELECT b FROM t1 WHERE a = 10001;
+} "[int2str 1001][int2str 1001][int2str 1001]"
+
+finish_test
diff --git a/test/tempfault.test b/test/tempfault.test
new file mode 100644
index 0000000000000000000000000000000000000000..4eae116a72e12e056adeaf0caf9e2aeef27c16b2
--- /dev/null
+++ b/test/tempfault.test
@@ -0,0 +1,134 @@
+# 2016 April 11
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains tests for fault-injection when SQLite is used with
+# a temp file database.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+set testprefix tempfault
+
+# sqlite3_memdebug_vfs_oom_test 0
+
+do_faultsim_test 1 -faults * -prep {
+  sqlite3 db ""
+  db eval {
+    PRAGMA page_size = 1024;
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, 2);
+    INSERT INTO t1 VALUES(3, 4);
+  }
+} -body {
+  execsql { INSERT INTO t1 VALUES(5, 6) }
+} -test {
+  faultsim_test_result {0 {}}
+  set rc [catch { execsql { SELECT * FROM t1 } } msg]
+  if {$rc==0 && $msg != "1 2 3 4 5 6" && $msg != "1 2 3 4"} {
+    error "data mismatch 1: $msg"
+  }
+  if {$testrc==0 && $msg != "1 2 3 4 5 6"} {
+    error "data mismatch 2: $msg"
+  }
+  faultsim_integrity_check
+}
+
+do_faultsim_test 2 -faults * -prep {
+  sqlite3 db ""
+  db eval {
+    PRAGMA page_size = 1024;
+    PRAGMA cache_size = 10;
+    CREATE TABLE t1(a, b);
+    CREATE INDEX i1 ON t1(b, a);
+    WITH x(i) AS (SELECT 1 UNION ALL SELECT i+1 FROM x WHERE i<100)
+    INSERT INTO t1 SELECT randomblob(100), randomblob(100) FROM x;
+  }
+} -body {
+  execsql { UPDATE t1 SET a = randomblob(99) }
+} -test {
+  faultsim_test_result {0 {}}
+  faultsim_integrity_check db
+}
+
+catch { db close }
+do_faultsim_test 2.1 -faults * -prep {
+  if {[info commands db]==""} {
+    sqlite3 db ""
+    execsql {
+      PRAGMA page_size = 1024;
+      PRAGMA cache_size = 10;
+      CREATE TABLE t1(a, b);
+      CREATE INDEX i1 ON t1(b, a);
+      WITH x(i) AS (SELECT 1 UNION ALL SELECT i+1 FROM x WHERE i<100)
+          INSERT INTO t1 SELECT randomblob(100), randomblob(100) FROM x;
+    }
+  } 
+} -body {
+  execsql { UPDATE t1 SET a = randomblob(99) }
+} -test {
+  faultsim_test_result {0 {}}
+  faultsim_integrity_check db
+}
+
+do_faultsim_test 3 -faults * -prep {
+  sqlite3 db ""
+  db eval {
+    PRAGMA page_size = 1024;
+    PRAGMA cache_size = 10;
+    CREATE TABLE t1(a, b);
+    CREATE INDEX i1 ON t1(b, a);
+    WITH x(i) AS (SELECT 1 UNION ALL SELECT i+1 FROM x WHERE i<50)
+    INSERT INTO t1 SELECT randomblob(100), randomblob(100) FROM x;
+  }
+} -body {
+  execsql { 
+    BEGIN;
+      UPDATE t1 SET a = randomblob(99);
+      SAVEPOINT abc;
+        UPDATE t1 SET a = randomblob(98) WHERE (rowid%10)==0;
+      ROLLBACK TO abc;
+        UPDATE t1 SET a = randomblob(97) WHERE (rowid%5)==0;
+      ROLLBACK TO abc;
+    COMMIT;
+  }
+} -test {
+  faultsim_test_result {0 {}}
+  faultsim_integrity_check db
+}
+
+do_faultsim_test 4 -faults * -prep {
+  sqlite3 db ""
+  db eval {
+    PRAGMA page_size = 1024;
+    PRAGMA cache_size = 10;
+    CREATE TABLE t1(a, b);
+    CREATE INDEX i1 ON t1(b, a);
+    WITH x(i) AS (SELECT 1 UNION ALL SELECT i+1 FROM x WHERE i<50)
+    INSERT INTO t1 SELECT randomblob(100), randomblob(100) FROM x;
+  }
+} -body {
+  execsql { 
+    BEGIN;
+      UPDATE t1 SET a = randomblob(99);
+      SAVEPOINT abc;
+        UPDATE t1 SET a = randomblob(98) WHERE (rowid%10)==0;
+      ROLLBACK TO abc;
+        UPDATE t1 SET a = randomblob(97) WHERE (rowid%5)==0;
+      ROLLBACK TO abc;
+    COMMIT;
+  }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+sqlite3_memdebug_vfs_oom_test 1
+finish_test
diff --git a/test/temptable.test b/test/temptable.test
new file mode 100644
index 0000000000000000000000000000000000000000..6a1e2b9867901100d83b59f05cc40f9ab90e2238
--- /dev/null
+++ b/test/temptable.test
@@ -0,0 +1,441 @@
+# 2001 October 7
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests for temporary tables and indices.
+#
+# $Id: temptable.test,v 1.21 2009/06/16 17:49:36 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !tempdb {
+  finish_test
+  return
+}
+
+# Create an alternative connection to the database
+#
+do_test temptable-1.0 {
+  sqlite3 db2 ./test.db
+  set dummy {}
+} {}
+
+# Create a permanent table.
+#
+do_test temptable-1.1 {
+  execsql {CREATE TABLE t1(a,b,c);}
+  execsql {INSERT INTO t1 VALUES(1,2,3);}
+  execsql {SELECT * FROM t1}
+} {1 2 3}
+do_test temptable-1.2 {
+  catch {db2 eval {SELECT * FROM sqlite_master}}
+  db2 eval {SELECT * FROM t1}
+} {1 2 3}
+do_test temptable-1.3 {
+  execsql {SELECT name FROM sqlite_master}
+} {t1}
+do_test temptable-1.4 {
+  db2 eval {SELECT name FROM sqlite_master}
+} {t1}
+
+# Create a temporary table.  Verify that only one of the two
+# processes can see it.
+#
+do_test temptable-1.5 {
+  db2 eval {
+    CREATE TEMP TABLE t2(x,y,z);
+    INSERT INTO t2 VALUES(4,5,6);
+  }
+  db2 eval {SELECT * FROM t2}
+} {4 5 6}
+do_test temptable-1.6 {
+  catch {execsql {SELECT * FROM sqlite_master}}
+  catchsql {SELECT * FROM t2}
+} {1 {no such table: t2}}
+do_test temptable-1.7 {
+  catchsql {INSERT INTO t2 VALUES(8,9,0);}
+} {1 {no such table: t2}}
+do_test temptable-1.8 {
+  db2 eval {INSERT INTO t2 VALUES(8,9,0);}
+  db2 eval {SELECT * FROM t2 ORDER BY x}
+} {4 5 6 8 9 0}
+do_test temptable-1.9 {
+  db2 eval {DELETE FROM t2 WHERE x==8}
+  db2 eval {SELECT * FROM t2 ORDER BY x}
+} {4 5 6}
+do_test temptable-1.10 {
+  db2 eval {DELETE FROM t2}
+  db2 eval {SELECT * FROM t2}
+} {}
+do_test temptable-1.11 {
+  db2 eval {
+     INSERT INTO t2 VALUES(7,6,5);
+     INSERT INTO t2 VALUES(4,3,2);
+     SELECT * FROM t2 ORDER BY x;
+  }
+} {4 3 2 7 6 5}
+do_test temptable-1.12 {
+  db2 eval {DROP TABLE t2;}
+  set r [catch {db2 eval {SELECT * FROM t2}} msg]
+  lappend r $msg
+} {1 {no such table: t2}}
+
+# Make sure temporary tables work with transactions
+#
+do_test temptable-2.1 {
+  execsql {
+    BEGIN TRANSACTION;
+    CREATE TEMPORARY TABLE t2(x,y);
+    INSERT INTO t2 VALUES(1,2);
+    SELECT * FROM t2;
+  }
+} {1 2}
+do_test temptable-2.2 {
+  execsql {ROLLBACK}
+  catchsql {SELECT * FROM t2}
+} {1 {no such table: t2}}
+do_test temptable-2.3 {
+  execsql {
+    BEGIN TRANSACTION;
+    CREATE TEMPORARY TABLE t2(x,y);
+    INSERT INTO t2 VALUES(1,2);
+    SELECT * FROM t2;
+  }
+} {1 2}
+do_test temptable-2.4 {
+  execsql {COMMIT}
+  catchsql {SELECT * FROM t2}
+} {0 {1 2}}
+do_test temptable-2.5 {
+  set r [catch {db2 eval {SELECT * FROM t2}} msg]
+  lappend r $msg
+} {1 {no such table: t2}}
+
+# Make sure indices on temporary tables are also temporary.
+#
+do_test temptable-3.1 {
+  execsql {
+    CREATE INDEX i2 ON t2(x);
+    SELECT name FROM sqlite_master WHERE type='index';
+  }
+} {}
+do_test temptable-3.2 {
+  execsql {
+    SELECT y FROM t2 WHERE x=1;
+  }
+} {2}
+do_test temptable-3.3 {
+  execsql {
+    DROP INDEX i2;
+    SELECT y FROM t2 WHERE x=1;
+  }
+} {2}
+do_test temptable-3.4 {
+  execsql {
+    CREATE INDEX i2 ON t2(x);
+    DROP TABLE t2;
+  }
+  catchsql {DROP INDEX i2}
+} {1 {no such index: i2}}
+
+# Check for correct name collision processing. A name collision can
+# occur when process A creates a temporary table T then process B
+# creates a permanent table also named T.  The temp table in process A
+# hides the existence of the permanent table.
+#
+do_test temptable-4.1 {
+  execsql {
+    CREATE TEMP TABLE t2(x,y);
+    INSERT INTO t2 VALUES(10,20);
+    SELECT * FROM t2;
+  } db2
+} {10 20}
+do_test temptable-4.2 {
+  execsql {
+    CREATE TABLE t2(x,y,z);
+    INSERT INTO t2 VALUES(9,8,7);
+    SELECT * FROM t2;
+  }
+} {9 8 7}
+do_test temptable-4.3 {
+  catchsql {
+    SELECT * FROM t2;
+  } db2
+} {0 {10 20}}
+do_test temptable-4.4.1 {
+  catchsql {
+    SELECT * FROM temp.t2;
+  } db2
+} {0 {10 20}}
+do_test temptable-4.4.2 {
+  catchsql {
+    SELECT * FROM main.t2;
+  } db2
+} {0 {9 8 7}}
+#do_test temptable-4.4.3 {
+#  catchsql {
+#    SELECT name FROM main.sqlite_master WHERE type='table';
+#  } db2
+#} {1 {database schema has changed}}
+do_test temptable-4.4.4 {
+  catchsql {
+    SELECT name FROM main.sqlite_master WHERE type='table';
+  } db2
+} {0 {t1 t2}}
+do_test temptable-4.4.5 {
+  catchsql {
+    SELECT * FROM main.t2;
+  } db2
+} {0 {9 8 7}}
+do_test temptable-4.4.6 {
+  # TEMP takes precedence over MAIN
+  catchsql {
+    SELECT * FROM t2;
+  } db2
+} {0 {10 20}}
+do_test temptable-4.5 {
+  catchsql {
+    DROP TABLE t2;     -- should drop TEMP
+    SELECT * FROM t2;  -- data should be from MAIN
+  } db2
+} {0 {9 8 7}}
+do_test temptable-4.6 {
+  db2 close
+  sqlite3 db2 ./test.db
+  catchsql {
+    SELECT * FROM t2;
+  } db2
+} {0 {9 8 7}}
+do_test temptable-4.7 {
+  catchsql {
+    DROP TABLE t2;
+    SELECT * FROM t2;
+  }
+} {1 {no such table: t2}}
+do_test temptable-4.8 {
+  db2 close
+  sqlite3 db2 ./test.db
+  execsql {
+    CREATE TEMP TABLE t2(x unique,y);
+    INSERT INTO t2 VALUES(1,2);
+    SELECT * FROM t2;
+  } db2
+} {1 2}
+do_test temptable-4.9 {
+  execsql {
+    CREATE TABLE t2(x unique, y);
+    INSERT INTO t2 VALUES(3,4);
+    SELECT * FROM t2;
+  }
+} {3 4}
+do_test temptable-4.10.1 {
+  catchsql {
+    SELECT * FROM t2;
+  } db2
+} {0 {1 2}}
+# Update: The schema is reloaded in test temptable-4.10.1. And tclsqlite.c
+#         handles it and retries the query anyway.
+# do_test temptable-4.10.2 {
+#   catchsql {
+#     SELECT name FROM sqlite_master WHERE type='table'
+#   } db2
+# } {1 {database schema has changed}}
+do_test temptable-4.10.3 {
+  catchsql {
+    SELECT name FROM sqlite_master WHERE type='table'
+  } db2
+} {0 {t1 t2}}
+do_test temptable-4.11 {
+  execsql {
+    SELECT * FROM t2;
+  } db2
+} {1 2}
+do_test temptable-4.12 {
+  execsql {
+    SELECT * FROM t2;
+  }
+} {3 4}
+do_test temptable-4.13 {
+  catchsql {
+    DROP TABLE t2;     -- drops TEMP.T2
+    SELECT * FROM t2;  -- uses MAIN.T2
+  } db2
+} {0 {3 4}}
+do_test temptable-4.14 {
+  execsql {
+    SELECT * FROM t2;
+  }
+} {3 4}
+do_test temptable-4.15 {
+  db2 close
+  sqlite3 db2 ./test.db
+  execsql {
+    SELECT * FROM t2;
+  } db2
+} {3 4}
+
+# Now create a temporary table in db2 and a permanent index in db.  The
+# temporary table in db2 should mask the name of the permanent index,
+# but the permanent index should still be accessible and should still
+# be updated when its corresponding table changes.
+#
+do_test temptable-5.1 {
+  execsql {
+    CREATE TEMP TABLE mask(a,b,c)
+  } db2
+  if {[permutation]=="prepare"} { db2 cache flush }
+  execsql {
+    CREATE INDEX mask ON t2(x);
+    SELECT * FROM t2;
+  }
+} {3 4}
+#do_test temptable-5.2 {
+#  catchsql {
+#    SELECT * FROM t2;
+#  } db2
+#} {1 {database schema has changed}}
+do_test temptable-5.3 {
+  catchsql {
+    SELECT * FROM t2;
+  } db2
+} {0 {3 4}}
+do_test temptable-5.4 {
+  execsql {
+    SELECT y FROM t2 WHERE x=3
+  }
+} {4}
+do_test temptable-5.5 {
+  execsql {
+    SELECT y FROM t2 WHERE x=3
+  } db2
+} {4}
+do_test temptable-5.6 {
+  execsql {
+    INSERT INTO t2 VALUES(1,2);
+    SELECT y FROM t2 WHERE x=1;
+  } db2
+} {2}
+do_test temptable-5.7 {
+  execsql {
+    SELECT y FROM t2 WHERE x=3
+  } db2
+} {4}
+do_test temptable-5.8 {
+  execsql {
+    SELECT y FROM t2 WHERE x=1;
+  }
+} {2}
+do_test temptable-5.9 {
+  execsql {
+    SELECT y FROM t2 WHERE x=3
+  }
+} {4}
+
+db2 close
+
+# Test for correct operation of read-only databases
+#
+do_test temptable-6.1 {
+  execsql {
+    CREATE TABLE t8(x);
+    INSERT INTO t8 VALUES('xyzzy');
+    SELECT * FROM t8;
+  }
+} {xyzzy}
+do_test temptable-6.2 {
+  db close
+  catch {file attributes test.db -permissions 0444}
+  catch {file attributes test.db -readonly 1}
+  sqlite3 db test.db
+  if {[file writable test.db]} {
+    error "Unable to make the database file test.db readonly - rerun this test as an unprivileged user"
+  }
+  execsql {
+    SELECT * FROM t8;
+  }
+} {xyzzy}
+do_test temptable-6.3 {
+  if {[file writable test.db]} {
+    error "Unable to make the database file test.db readonly - rerun this test as an unprivileged user"
+  }
+  catchsql {
+    CREATE TABLE t9(x,y);
+  }
+} {1 {attempt to write a readonly database}}
+do_test temptable-6.4 {
+  catchsql {
+    CREATE TEMP TABLE t9(x,y);
+  }
+} {0 {}}
+do_test temptable-6.5 {
+  catchsql {
+    INSERT INTO t9 VALUES(1,2);
+    SELECT * FROM t9;
+  }
+} {0 {1 2}}
+do_test temptable-6.6 {
+  if {[file writable test.db]} {
+    error "Unable to make the database file test.db readonly - rerun this test as an unprivileged user"
+  }
+  catchsql {
+    INSERT INTO t8 VALUES('hello');
+    SELECT * FROM t8;
+  }
+} {1 {attempt to write a readonly database}}
+do_test temptable-6.7 {
+  catchsql {
+    SELECT * FROM t8,t9;
+  }
+} {0 {xyzzy 1 2}}
+do_test temptable-6.8 {
+  db close
+  sqlite3 db test.db
+  catchsql {
+    SELECT * FROM t8,t9;
+  }
+} {1 {no such table: t9}}
+
+forcedelete test2.db test2.db-journal
+ifcapable attach {
+  do_test temptable-7.1 {
+    catchsql {
+      ATTACH 'test2.db' AS two;
+      CREATE TEMP TABLE two.abc(x,y);
+    }
+  } {1 {temporary table name must be unqualified}}
+}
+
+# Need to do the following for tcl 8.5 on mac. On that configuration, the
+# -readonly flag is taken so seriously that a subsequent [forcedelete]
+# (required before the next test file can be executed) will fail.
+#
+catch {file attributes test.db -readonly 0}
+
+do_test temptable-8.0 {
+  db close
+  catch {forcedelete test.db}
+  sqlite3 db test.db
+} {}
+do_test temptable-8.1 {
+  execsql { CREATE TEMP TABLE tbl2(a, b); }
+  execsql {
+    CREATE TABLE tbl(a, b);
+    INSERT INTO tbl VALUES(1, 2);
+  }
+  execsql {SELECT * FROM tbl}
+} {1 2}
+do_test temptable-8.2 {
+  execsql { CREATE TEMP TABLE tbl(a, b); }
+  execsql {SELECT * FROM tbl}
+} {}
+
+finish_test
diff --git a/test/temptable2.test b/test/temptable2.test
new file mode 100644
index 0000000000000000000000000000000000000000..2ee4adb9f76b3d79d53c4621f6dc46aa6e90ba6b
--- /dev/null
+++ b/test/temptable2.test
@@ -0,0 +1,360 @@
+# 2016 March 3
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# TESTRUNNER: slow
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix temptable2
+
+do_execsql_test 1.1 {
+  CREATE TEMP TABLE t1(a, b);
+  CREATE INDEX i1 ON t1(a, b);
+}
+
+do_execsql_test 1.2 {
+  WITH x(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM x WHERE i<100000 )
+  INSERT INTO t1 SELECT randomblob(100), randomblob(100) FROM X;
+} {}
+
+do_execsql_test 1.3 {
+  PRAGMA temp.integrity_check;
+} {ok}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 2.1 {
+  CREATE TEMP TABLE t2(a, b);
+  INSERT INTO t2 VALUES(1, 2);
+} {}
+
+do_execsql_test 2.2 {
+  BEGIN;
+    INSERT INTO t2 VALUES(3, 4);
+    SELECT * FROM t2;
+} {1 2 3 4}
+
+do_execsql_test 2.3 {
+  ROLLBACK;
+  SELECT * FROM t2;
+} {1 2}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 3.1.1 {
+  PRAGMA main.cache_size = 10;
+  PRAGMA temp.cache_size = 10;
+
+  CREATE TEMP TABLE t1(a, b);
+  CREATE INDEX i1 ON t1(a, b);
+
+  WITH x(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM x WHERE i<1000 )
+  INSERT INTO t1 SELECT randomblob(100), randomblob(100) FROM x;
+
+  SELECT count(*) FROM t1;
+} {1000}
+do_execsql_test 3.1.2 {
+  BEGIN;
+    UPDATE t1 SET b=randomblob(100) WHERE (rowid%10)==0;
+  ROLLBACK;
+}
+do_execsql_test 3.1.3 {
+  SELECT count(*) FROM t1;
+} {1000}
+do_execsql_test 3.1.4 { PRAGMA temp.integrity_check } {ok}
+
+do_execsql_test 3.2.1 {
+  BEGIN;
+    UPDATE t1 SET b=randomblob(100) WHERE (rowid%10)==0;
+    SAVEPOINT abc;
+      UPDATE t1 SET b=randomblob(100) WHERE (rowid%10)==1;
+    ROLLBACK TO abc;
+    UPDATE t1 SET b=randomblob(100) WHERE (rowid%10)==2;
+  COMMIT;
+}
+do_execsql_test 3.2.2 { PRAGMA temp.integrity_check } {ok}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 4.1.1 {
+  PRAGMA main.cache_size = 10;
+  PRAGMA temp.cache_size = 10;
+
+  CREATE TEMP TABLE t1(a, b);
+  CREATE INDEX i1 ON t1(a, b);
+
+  WITH x(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM x WHERE i<10 )
+  INSERT INTO t1 SELECT randomblob(100), randomblob(100) FROM x;
+
+  SELECT count(*) FROM t1;
+  PRAGMA temp.page_count;
+} {10 9}
+
+do_execsql_test 4.1.2 {
+  BEGIN;
+    UPDATE t1 SET b=randomblob(100);
+  ROLLBACK;
+}
+
+do_execsql_test 4.1.3 {
+  CREATE TEMP TABLE t2(a, b);
+  CREATE INDEX i2 ON t2(a, b);
+  WITH x(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM x WHERE i<500 )
+  INSERT INTO t2 SELECT randomblob(100), randomblob(100) FROM x;
+
+  SELECT count(*) FROM t2;
+  SELECT count(*) FROM t1;
+} {500 10}
+
+do_test 4.1.4 {
+  set n [db one { PRAGMA temp.page_count }]
+  expr ($n >280 && $n < 300) 
+} 1
+
+do_execsql_test 4.1.4 { PRAGMA temp.integrity_check } {ok}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 5.1.1 {
+  PRAGMA main.cache_size = 10;
+  PRAGMA temp.cache_size = 10;
+
+  CREATE TEMP TABLE t2(a, b);
+  CREATE INDEX i2 ON t2(a, b);
+  WITH x(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM x WHERE i<500 )
+  INSERT INTO t2 SELECT randomblob(100), randomblob(100) FROM x;
+
+  CREATE TEMP TABLE t1(a, b);
+  CREATE INDEX i1 ON t1(a, b);
+  INSERT INTO t1 VALUES(1, 2);
+}
+
+# Test that the temp database is now much bigger than the configured
+# cache size (10 pages).
+do_test 5.1.2 {
+  set n [db one { PRAGMA temp.page_count }]
+  expr ($n > 270 && $n < 290)
+} {1}
+
+do_execsql_test 5.1.3 {
+  BEGIN;
+    UPDATE t1 SET a=2;
+    UPDATE t2 SET a=randomblob(100);
+    SELECT count(*) FROM t1;
+  ROLLBACK;
+} {1}
+
+do_execsql_test 5.1.4 {
+  UPDATE t2 SET a=randomblob(100);
+
+  SELECT * FROM t1;
+} {1 2}
+
+do_execsql_test 5.1.5 { PRAGMA temp.integrity_check } {ok}
+
+#-------------------------------------------------------------------------
+# Test this:
+#
+#   1. Page is DIRTY at the start of a transaction.
+#   2. Page is written out as part of the transaction.
+#   3. Page is then read back in.
+#   4. Transaction is rolled back. Is the page now clean or dirty?
+#
+# This actually does work. Step 4 marks the page as clean. But it also
+# writes to the database file itself. So marking it clean is correct - 
+# the page does match the contents of the db file.
+#
+reset_db
+
+do_execsql_test 6.1 {
+  PRAGMA main.cache_size = 10;
+  PRAGMA temp.cache_size = 10;
+
+  CREATE TEMP TABLE t1(x);
+  INSERT INTO t1 VALUES('one');
+
+  CREATE TEMP TABLE t2(a, b);
+  CREATE INDEX i2 ON t2(a, b);
+  WITH x(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM x WHERE i<500 )
+  INSERT INTO t2 SELECT randomblob(100), randomblob(100) FROM x;
+}
+
+do_execsql_test 6.2 {
+  UPDATE t1 SET x='two';             -- step 1
+  BEGIN;
+    UPDATE t2 SET a=randomblob(100); -- step 2
+    SELECT * FROM t1;                -- step 3
+  ROLLBACK;                          -- step 4
+
+  SELECT count(*) FROM t2;
+  SELECT * FROM t1;
+} {two 500 two}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+sqlite3 db ""
+do_execsql_test 7.1 {
+  PRAGMA auto_vacuum=INCREMENTAL;
+  CREATE TABLE t1(x);
+  INSERT INTO t1 VALUES(zeroblob(900));
+  INSERT INTO t1 VALUES(zeroblob(900));
+  INSERT INTO t1 SELECT x FROM t1;
+  INSERT INTO t1 SELECT x FROM t1;
+  INSERT INTO t1 SELECT x FROM t1;
+  INSERT INTO t1 SELECT x FROM t1;
+  BEGIN;
+  DELETE FROM t1 WHERE rowid%2;
+  PRAGMA incremental_vacuum(4);
+  ROLLBACK;
+  PRAGMA integrity_check;
+} {ok}
+
+#-------------------------------------------------------------------------
+# Try changing the page size using a backup operation when pages are
+# stored in main-memory only.
+#
+reset_db
+do_execsql_test 8.1 {
+  PRAGMA auto_vacuum = OFF;
+  CREATE TABLE t2(a, b);
+  CREATE INDEX i2 ON t2(a, b);
+  WITH x(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM x WHERE i<20 )
+  INSERT INTO t2 SELECT randomblob(100), randomblob(100) FROM x ORDER BY 1, 2;
+  PRAGMA page_count;
+} {13}
+
+do_test 8.2 {
+  sqlite3 tmp ""
+  execsql {
+    PRAGMA auto_vacuum = OFF;
+    PRAGMA page_size = 8192;
+    CREATE TABLE t1(a, b);
+    CREATE INDEX i1 ON t1(a, b);
+    WITH x(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM x WHERE i<100 )
+    INSERT INTO t1 SELECT randomblob(100), randomblob(100) FROM x ORDER BY 1, 2;
+    PRAGMA page_count;
+  } tmp
+} {10}
+
+do_test 8.3 {
+  sqlite3_backup B tmp main db main
+  B step 5
+  B finish
+} {SQLITE_READONLY}
+
+do_test 8.4 {
+  execsql {
+    SELECT count(*) FROM t1;
+    PRAGMA integrity_check;
+    PRAGMA page_size;
+  } tmp
+} {100 ok 8192}
+
+do_test 8.5 { 
+  tmp eval { UPDATE t1 SET a=randomblob(100) }
+} {}
+
+do_test 8.6 {
+  sqlite3_backup B tmp main db main
+  B step 1000
+  B finish
+} {SQLITE_READONLY}
+
+tmp close
+
+#-------------------------------------------------------------------------
+# Try inserts and deletes with a large db in auto-vacuum mode. Check
+#
+foreach {tn mode} {
+  1 delete
+  2 wal
+} {
+  reset_db
+  sqlite3 db ""
+  do_execsql_test 9.$tn.1.1 {
+    PRAGMA cache_size = 15;
+    PRAGMA auto_vacuum = 1;
+  }
+  execsql "PRAGMA journal_mode = $mode"
+
+  do_execsql_test 9.$tn.1.2 {
+    CREATE TABLE tx(a, b);
+    CREATE INDEX i1 ON tx(a);
+    CREATE INDEX i2 ON tx(b);
+    WITH x(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM x WHERE i<1000 )
+      INSERT INTO tx SELECT randomblob(100), randomblob(100) FROM x;
+  }
+
+  for {set i 2} {$i<20} {incr i} {
+    do_execsql_test 9.$tn.$i.1 { DELETE FROM tx WHERE (random()%3)==0 }
+
+    do_execsql_test 9.$tn.$i.2 { PRAGMA integrity_check } ok
+
+      do_execsql_test 9.$tn.$i.3 { 
+        WITH x(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM x WHERE i<400 )
+          INSERT INTO tx SELECT randomblob(100), randomblob(100) FROM x;
+      }
+
+    do_execsql_test 9.$tn.$i.4 { PRAGMA integrity_check } ok
+
+    do_execsql_test 9.$tn.$i.5 { 
+      BEGIN;
+      DELETE FROM tx WHERE (random()%3)==0;
+      WITH x(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM x WHERE i<500 )
+        INSERT INTO tx SELECT randomblob(100), randomblob(100) FROM x;
+      COMMIT;
+    }
+
+    do_execsql_test 9.$tn.$i.6 { PRAGMA integrity_check } ok
+  }
+}
+
+#-------------------------------------------------------------------------
+# When using mmap mode with a temp file, SQLite must search the cache 
+# before using a mapped page even when there is no write transaction
+# open. For a temp file, the on-disk version may not be up to date.
+#
+sqlite3 db ""
+do_execsql_test 10.0 {
+  PRAGMA cache_size = 50;
+  PRAGMA page_size = 1024;
+  CREATE TABLE t1(a, b, PRIMARY KEY(a)) WITHOUT ROWID;
+  CREATE INDEX i1 ON t1(a);
+  CREATE TABLE t2(x, y);
+  INSERT INTO t2 VALUES(1, 2);
+}
+
+do_execsql_test 10.1 {
+  BEGIN;
+    WITH x(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM x WHERE i<500 )
+      INSERT INTO t1 SELECT randomblob(100), randomblob(100) FROM x;
+  COMMIT;
+  INSERT INTO t2 VALUES(3, 4);
+}
+
+ifcapable mmap {
+  if {[permutation]!="journaltest" && $::TEMP_STORE<2} {
+    # The journaltest permutation does not support mmap, so this part of
+    # the test is omitted.
+    do_execsql_test 10.2 { PRAGMA mmap_size = 512000 } 512000
+  }
+}
+
+do_execsql_test 10.3 { SELECT * FROM t2 } {1 2 3 4}
+do_execsql_test 10.4 { PRAGMA integrity_check } ok
+
+finish_test
diff --git a/test/temptable3.test b/test/temptable3.test
new file mode 100644
index 0000000000000000000000000000000000000000..16f51d78323e45de0d874ed16ed004c2f8f6f78f
--- /dev/null
+++ b/test/temptable3.test
@@ -0,0 +1,41 @@
+# 2016-05-10
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix temptable3
+
+db close
+sqlite3 db {}
+do_execsql_test 1.1 {
+  PRAGMA cache_size = 1;
+  PRAGMA page_size = 1024;
+  PRAGMA auto_vacuum = 2;
+  CREATE TABLE t1(x);
+  INSERT INTO t1 VALUES( randomblob(800) );
+  INSERT INTO t1 VALUES( randomblob(800) );
+  CREATE TABLE t2(x);
+  PRAGMA integrity_check;
+} {ok}
+
+db close
+sqlite3 db {}
+do_execsql_test 1.2 {
+  PRAGMA cache_size = 1;
+  PRAGMA auto_vacuum = 2;
+  CREATE TABLE t1(x);
+  CREATE TABLE t2(x UNIQUE);
+  INSERT INTO t2 VALUES(1), (2), (3);
+  DROP TABLE t1;
+  PRAGMA integrity_check;
+} {ok}
+
+finish_test
diff --git a/test/temptrigger.test b/test/temptrigger.test
new file mode 100644
index 0000000000000000000000000000000000000000..e4277adf653b76b077126fec7177908eaf757e07
--- /dev/null
+++ b/test/temptrigger.test
@@ -0,0 +1,279 @@
+# 2009 February 27
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# $Id: temptrigger.test,v 1.3 2009/04/15 13:07:19 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix temptrigger
+
+ifcapable {!trigger || !shared_cache} { finish_test ; return }
+
+# Test cases:
+#
+#   temptrigger-1.*: Shared cache problem.
+#   temptrigger-2.*: A similar shared cache problem.
+#   temptrigger-3.*: Attached database problem.
+#
+
+#-------------------------------------------------------------------------
+# Test case temptrigger-1.* demonstrates a problem with temp triggers
+# in shared-cache mode. If process 1 connections to a shared-cache and
+# creates a temp trigger, the temp trigger is linked into the shared-cache
+# schema. If process 2 reloads the shared-cache schema from disk, then
+# it does not recreate the temp trigger belonging to process 1. From the
+# point of view of process 1, the temp trigger just disappeared.
+# 
+#   temptrigger-1.1: In shared cache mode, create a table in the main 
+#                    database and add a temp trigger to it.
+#
+#   temptrigger-1.2: Check that the temp trigger is correctly fired. Check
+#                    that the temp trigger is not fired by statements
+#                    executed by a second connection connected to the 
+#                    same shared cache.
+#
+#   temptrigger-1.3: Using the second connection to the shared-cache, cause
+#                    the shared-cache schema to be reloaded.
+#
+#   temptrigger-1.4: Check that the temp trigger is still fired correctly.
+#
+#   temptrigger-1.5: Check that the temp trigger can be dropped without error.
+#
+db close
+set ::enable_shared_cache [sqlite3_enable_shared_cache]
+sqlite3_enable_shared_cache 1
+
+sqlite3 db test.db
+sqlite3 db2 test.db
+
+do_test temptrigger-1.1 {
+  execsql {
+    CREATE TABLE t1(a, b);
+    CREATE TEMP TABLE tt1(a, b);
+    CREATE TEMP TRIGGER tr1 AFTER INSERT ON t1 BEGIN
+      INSERT INTO tt1 VALUES(new.a, new.b);
+    END;
+  }
+} {}
+
+do_test temptrigger-1.2.1 {
+  execsql { INSERT INTO t1 VALUES(1, 2) }
+  execsql { SELECT * FROM t1 }
+} {1 2}
+do_test temptrigger-1.2.2 {
+  execsql { SELECT * FROM tt1 }
+} {1 2}
+do_test temptrigger-1.2.3 {
+  execsql { INSERT INTO t1 VALUES(3, 4) } db2
+  execsql { SELECT * FROM t1 }
+} {1 2 3 4}
+do_test temptrigger-1.2.4 {
+  execsql { SELECT * FROM tt1 }
+} {1 2}
+
+# Cause the shared-cache schema to be reloaded.
+#
+do_test temptrigger-1.3 {
+  execsql { BEGIN; CREATE TABLE t3(a, b); ROLLBACK; } db2
+} {}
+
+do_test temptrigger-1.4 {
+  execsql { INSERT INTO t1 VALUES(5, 6) }
+  execsql { SELECT * FROM tt1 }
+} {1 2 5 6}
+
+do_test temptrigger-1.5 {
+  # Before the bug was fixed, the following 'DROP TRIGGER' hit an 
+  # assert if executed.
+  #execsql { DROP TRIGGER tr1 }
+} {}
+
+catch {db close}
+catch {db2 close}
+
+#-------------------------------------------------------------------------
+# Tests temptrigger-2.* are similar to temptrigger-1.*, except that
+# temptrigger-2.3 simply opens and closes a connection to the shared-cache.
+# It does not do anything special to cause the schema to be reloaded.
+# 
+do_test temptrigger-2.1 {
+  sqlite3 db test.db
+  execsql {
+    DELETE FROM t1;
+    CREATE TEMP TABLE tt1(a, b);
+    CREATE TEMP TRIGGER tr1 AFTER INSERT ON t1 BEGIN
+      INSERT INTO tt1 VALUES(new.a, new.b);
+    END;
+  }
+} {}
+do_test temptrigger-2.2 {
+  execsql {
+    INSERT INTO t1 VALUES(10, 20);
+    SELECT * FROM tt1;
+  }
+} {10 20}
+do_test temptrigger-2.3 {
+  sqlite3 db2 test.db
+  db2 close
+} {}
+do_test temptrigger-2.4 {
+  execsql {
+    INSERT INTO t1 VALUES(30, 40);
+    SELECT * FROM tt1;
+  }
+} {10 20 30 40}
+do_test temptrigger-2.5 {
+  #execsql { DROP TRIGGER tr1 }
+} {}
+
+catch {db close}
+catch {db2 close}
+sqlite3_enable_shared_cache $::enable_shared_cache
+
+#-------------------------------------------------------------------------
+# Test case temptrigger-3.* demonstrates a problem with temp triggers
+# on tables located in attached databases. At one point when SQLite reloaded 
+# the schema of an attached database (because some other connection had 
+# changed the schema cookie) it was not re-creating temp triggers attached 
+# to tables located within the attached database.
+# 
+#   temptrigger-3.1: Attach database 'test2.db' to connection [db]. Add a
+#                    temp trigger to a table in 'test2.db'.
+#
+#   temptrigger-3.2: Check that the temp trigger is correctly fired.
+#
+#   temptrigger-3.3: Update the schema of 'test2.db' using an external
+#                    connection. This forces [db] to reload the 'test2.db'
+#                    schema. Check that the temp trigger is still fired
+#                    correctly.
+#
+#   temptrigger-3.4: Check that the temp trigger can be dropped without error.
+# 
+do_test temptrigger-3.1 {
+  catch { forcedelete test2.db test2.db-journal }
+  catch { forcedelete test.db test.db-journal }
+  sqlite3 db test.db 
+  sqlite3 db2 test2.db 
+  execsql { CREATE TABLE t2(a, b) } db2
+  execsql {
+    ATTACH 'test2.db' AS aux;
+    CREATE TEMP TABLE tt2(a, b);
+    CREATE TEMP TRIGGER tr2 AFTER INSERT ON aux.t2 BEGIN
+      INSERT INTO tt2 VALUES(new.a, new.b);
+    END;
+  }
+} {}
+
+do_test temptrigger-3.2.1 {
+  execsql { 
+    INSERT INTO aux.t2 VALUES(1, 2);
+    SELECT * FROM aux.t2;
+  }
+} {1 2}
+do_test temptrigger-3.2.2 {
+  execsql { SELECT * FROM tt2 }
+} {1 2}
+
+do_test temptrigger-3.3.1 {
+  execsql { CREATE TABLE t3(a, b) } db2
+  execsql { 
+    INSERT INTO aux.t2 VALUES(3, 4);
+    SELECT * FROM aux.t2;
+  }
+} {1 2 3 4}
+do_test temptrigger-3.3.2 {
+  execsql { SELECT * FROM tt2 }
+} {1 2 3 4}
+
+do_test temptrigger-3.4 {
+  # Before the bug was fixed, the following 'DROP TRIGGER' hit an 
+  # assert if executed.
+  #execsql { DROP TRIGGER tr2 }
+} {}
+
+catch { db close }
+catch { db2 close }
+
+
+#-------------------------------------------------------------------------
+# Test that creating a temp table after a temp trigger on the same name
+# has been created is an error.
+#
+reset_db
+do_execsql_test 4.0 {
+  CREATE TABLE t1(x);
+  CREATE TEMP TRIGGER tr1 BEFORE INSERT ON t1 BEGIN
+    SELECT 1,2,3;
+  END;
+}
+
+do_execsql_test 4.1 {
+  CREATE TEMP TABLE t1(x);
+}
+
+#-------------------------------------------------------------------------
+# Test that no harm is done if the table a temp trigger is attached to is
+# deleted by an external connection.
+#
+reset_db
+do_execsql_test 5.0 {
+  CREATE TABLE t1(x);
+  CREATE TEMP TRIGGER tr1 BEFORE INSERT ON t1 BEGIN SELECT 1,2,3; END;
+}
+
+do_test 5.1 {
+  sqlite3 db2 test.db
+  execsql { DROP TABLE t1 } db2
+} {}
+
+do_execsql_test 5.2 {
+  SELECT * FROM sqlite_master;
+  SELECT * FROM temp.sqlite_master;
+} {
+  trigger tr1 t1 0 
+  {CREATE TRIGGER tr1 BEFORE INSERT ON t1 BEGIN SELECT 1,2,3; END}
+}
+db2 close
+
+#-------------------------------------------------------------------------
+# Check that if a second connection creates a table in an attached database
+# with the same name as a table in the main database that has a temp
+# trigger attached to it nothing goes awry.
+#
+reset_db
+forcedelete test.db2
+
+do_execsql_test 6.0 {
+  CREATE TABLE t1(x);
+  CREATE TEMP TRIGGER tr1 BEFORE INSERT ON t1 BEGIN 
+    SELECT raise(ABORT, 'error'); 
+  END;
+  ATTACH 'test.db2' AS aux;
+}
+
+do_test 6.1 {
+  sqlite3 db2 test.db2
+  execsql { CREATE TABLE t1(a, b, c); } db2
+} {}
+
+do_execsql_test 6.2 {
+  SELECT type,name,tbl_name,sql FROM aux.sqlite_master;
+  INSERT INTO aux.t1 VALUES(1,2,3);
+} {
+  table t1 t1 {CREATE TABLE t1(a, b, c)}
+}
+
+do_catchsql_test 6.3 {
+  INSERT INTO main.t1 VALUES(1);
+} {1 error}
+db2 close
+
+finish_test
diff --git a/test/tester.tcl b/test/tester.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..b5f49ebde9b94a101b422afdacb947ff26f0ec87
--- /dev/null
+++ b/test/tester.tcl
@@ -0,0 +1,2617 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements some common TCL routines used for regression
+# testing the SQLite library
+#
+# $Id: tester.tcl,v 1.143 2009/04/09 01:23:49 drh Exp $
+
+#-------------------------------------------------------------------------
+# The commands provided by the code in this file to help with creating
+# test cases are as follows:
+#
+# Commands to manipulate the db and the file-system at a high level:
+#
+#      is_relative_file
+#      test_pwd
+#      get_pwd
+#      copy_file              FROM TO
+#      delete_file            FILENAME
+#      drop_all_tables        ?DB?
+#      drop_all_indexes       ?DB?
+#      forcecopy              FROM TO
+#      forcedelete            FILENAME
+#
+# Test the capability of the SQLite version built into the interpreter to
+# determine if a specific test can be run:
+#
+#      capable                EXPR
+#      ifcapable              EXPR
+#
+# Calulate checksums based on database contents:
+#
+#      dbcksum                DB DBNAME
+#      allcksum               ?DB?
+#      cksum                  ?DB?
+#
+# Commands to execute/explain SQL statements:
+#
+#      memdbsql               SQL
+#      stepsql                DB SQL
+#      execsql2               SQL
+#      explain_no_trace       SQL
+#      explain                SQL ?DB?
+#      catchsql               SQL ?DB?
+#      execsql                SQL ?DB?
+#
+# Commands to run test cases:
+#
+#      do_ioerr_test          TESTNAME ARGS...
+#      crashsql               ARGS...
+#      integrity_check        TESTNAME ?DB?
+#      verify_ex_errcode      TESTNAME EXPECTED ?DB?
+#      do_test                TESTNAME SCRIPT EXPECTED
+#      do_execsql_test        TESTNAME SQL EXPECTED
+#      do_catchsql_test       TESTNAME SQL EXPECTED
+#      do_timed_execsql_test  TESTNAME SQL EXPECTED
+#
+# Commands providing a lower level interface to the global test counters:
+#
+#      set_test_counter       COUNTER ?VALUE?
+#      omit_test              TESTNAME REASON ?APPEND?
+#      fail_test              TESTNAME
+#      incr_ntest
+#
+# Command run at the end of each test file:
+#
+#      finish_test
+#
+# Commands to help create test files that run with the "WAL" and other
+# permutations (see file permutations.test):
+#
+#      wal_is_wal_mode
+#      wal_set_journal_mode   ?DB?
+#      wal_check_journal_mode TESTNAME?DB?
+#      permutation
+#      presql
+#
+# Command to test whether or not --verbose=1 was specified on the command
+# line (returns 0 for not-verbose, 1 for verbose and 2 for "verbose in the
+# output file only").
+#
+#      verbose
+#
+
+# Only run this script once.  If sourced a second time, make it a no-op
+if {[info exists ::tester_tcl_has_run]} return
+
+# Set the precision of FP arithmatic used by the interpreter. And
+# configure SQLite to take database file locks on the page that begins
+# 64KB into the database file instead of the one 1GB in. This means
+# the code that handles that special case can be tested without creating
+# very large database files.
+#
+set tcl_precision 15
+sqlite3_test_control_pending_byte 0x0010000
+
+
+# If the pager codec is available, create a wrapper for the [sqlite3]
+# command that appends "-key {xyzzy}" to the command line. i.e. this:
+#
+#     sqlite3 db test.db
+#
+# becomes
+#
+#     sqlite3 db test.db -key {xyzzy}
+#
+if {[info command sqlite_orig]==""} {
+  rename sqlite3 sqlite_orig
+  proc sqlite3 {args} {
+    if {[llength $args]>=2 && [string index [lindex $args 0] 0]!="-"} {
+      # This command is opening a new database connection.
+      #
+      if {[info exists ::G(perm:sqlite3_args)]} {
+        set args [concat $args $::G(perm:sqlite3_args)]
+      }
+      if {[sqlite_orig -has-codec] && ![info exists ::do_not_use_codec]} {
+        lappend args -key {xyzzy}
+      }
+
+      set res [uplevel 1 sqlite_orig $args]
+      if {[info exists ::G(perm:presql)]} {
+        [lindex $args 0] eval $::G(perm:presql)
+      }
+      if {[info exists ::G(perm:dbconfig)]} {
+        set ::dbhandle [lindex $args 0]
+        uplevel #0 $::G(perm:dbconfig)
+      }
+      [lindex $args 0] cache size 3
+      set res
+    } else {
+      # This command is not opening a new database connection. Pass the
+      # arguments through to the C implementation as the are.
+      #
+      uplevel 1 sqlite_orig $args
+    }
+  }
+}
+
+proc getFileRetries {} {
+  if {![info exists ::G(file-retries)]} {
+    #
+    # NOTE: Return the default number of retries for [file] operations.  A
+    #       value of zero or less here means "disabled".
+    #
+    return [expr {$::tcl_platform(platform) eq "windows" ? 50 : 0}]
+  }
+  return $::G(file-retries)
+}
+
+proc getFileRetryDelay {} {
+  if {![info exists ::G(file-retry-delay)]} {
+    #
+    # NOTE: Return the default number of milliseconds to wait when retrying
+    #       failed [file] operations.  A value of zero or less means "do not
+    #       wait".
+    #
+    return 100; # TODO: Good default?
+  }
+  return $::G(file-retry-delay)
+}
+
+# Return the string representing the name of the current directory.  On
+# Windows, the result is "normalized" to whatever our parent command shell
+# is using to prevent case-mismatch issues.
+#
+proc get_pwd {} {
+  if {$::tcl_platform(platform) eq "windows"} {
+    #
+    # NOTE: Cannot use [file normalize] here because it would alter the
+    #       case of the result to what Tcl considers canonical, which would
+    #       defeat the purpose of this procedure.
+    #
+    if {[info exists ::env(ComSpec)]} {
+      set comSpec $::env(ComSpec)
+    } else {
+      # NOTE: Hard-code the typical default value.
+      set comSpec {C:\Windows\system32\cmd.exe}
+    }
+    return [string map [list \\ /] \
+        [string trim [exec -- $comSpec /c CD]]]
+  } else {
+    return [pwd]
+  }
+}
+
+# Copy file $from into $to. This is used because some versions of
+# TCL for windows (notably the 8.4.1 binary package shipped with the
+# current mingw release) have a broken "file copy" command.
+#
+proc copy_file {from to} {
+  do_copy_file false $from $to
+}
+
+proc forcecopy {from to} {
+  do_copy_file true $from $to
+}
+
+proc do_copy_file {force from to} {
+  set nRetry [getFileRetries]     ;# Maximum number of retries.
+  set nDelay [getFileRetryDelay]  ;# Delay in ms before retrying.
+
+  # On windows, sometimes even a [file copy -force] can fail. The cause is
+  # usually "tag-alongs" - programs like anti-virus software, automatic backup
+  # tools and various explorer extensions that keep a file open a little longer
+  # than we expect, causing the delete to fail.
+  #
+  # The solution is to wait a short amount of time before retrying the copy.
+  #
+  if {$nRetry > 0} {
+    for {set i 0} {$i<$nRetry} {incr i} {
+      set rc [catch {
+        if {$force} {
+          file copy -force $from $to
+        } else {
+          file copy $from $to
+        }
+      } msg]
+      if {$rc==0} break
+      if {$nDelay > 0} { after $nDelay }
+    }
+    if {$rc} { error $msg }
+  } else {
+    if {$force} {
+      file copy -force $from $to
+    } else {
+      file copy $from $to
+    }
+  }
+}
+
+# Check if a file name is relative
+#
+proc is_relative_file { file } {
+  return [expr {[file pathtype $file] != "absolute"}]
+}
+
+# If the VFS supports using the current directory, returns [pwd];
+# otherwise, it returns only the provided suffix string (which is
+# empty by default).
+#
+proc test_pwd { args } {
+  if {[llength $args] > 0} {
+    set suffix1 [lindex $args 0]
+    if {[llength $args] > 1} {
+      set suffix2 [lindex $args 1]
+    } else {
+      set suffix2 $suffix1
+    }
+  } else {
+    set suffix1 ""; set suffix2 ""
+  }
+  ifcapable curdir {
+    return "[get_pwd]$suffix1"
+  } else {
+    return $suffix2
+  }
+}
+
+# Delete a file or directory
+#
+proc delete_file {args} {
+  do_delete_file false {*}$args
+}
+
+proc forcedelete {args} {
+  do_delete_file true {*}$args
+}
+
+proc do_delete_file {force args} {
+  set nRetry [getFileRetries]     ;# Maximum number of retries.
+  set nDelay [getFileRetryDelay]  ;# Delay in ms before retrying.
+
+  foreach filename $args {
+    # On windows, sometimes even a [file delete -force] can fail just after
+    # a file is closed. The cause is usually "tag-alongs" - programs like
+    # anti-virus software, automatic backup tools and various explorer
+    # extensions that keep a file open a little longer than we expect, causing
+    # the delete to fail.
+    #
+    # The solution is to wait a short amount of time before retrying the
+    # delete.
+    #
+    if {$nRetry > 0} {
+      for {set i 0} {$i<$nRetry} {incr i} {
+        set rc [catch {
+          if {$force} {
+            file delete -force $filename
+          } else {
+            file delete $filename
+          }
+        } msg]
+        if {$rc==0} break
+        if {$nDelay > 0} { after $nDelay }
+      }
+      if {$rc} { error $msg }
+    } else {
+      if {$force} {
+        file delete -force $filename
+      } else {
+        file delete $filename
+      }
+    }
+  }
+}
+
+proc execpresql {handle args} {
+  trace remove execution $handle enter [list execpresql $handle]
+  if {[info exists ::G(perm:presql)]} {
+    $handle eval $::G(perm:presql)
+  }
+}
+
+# This command should be called after loading tester.tcl from within
+# all test scripts that are incompatible with encryption codecs.
+#
+proc do_not_use_codec {} {
+  set ::do_not_use_codec 1
+  reset_db
+}
+unset -nocomplain do_not_use_codec
+
+# Return true if the "reserved_bytes" integer on database files is non-zero.
+#
+proc nonzero_reserved_bytes {} {
+  return [sqlite3 -has-codec]
+}
+
+# Print a HELP message and exit
+#
+proc print_help_and_quit {} {
+  puts {Options:
+  --pause                  Wait for user input before continuing
+  --soft-heap-limit=N      Set the soft-heap-limit to N
+  --hard-heap-limit=N      Set the hard-heap-limit to N
+  --maxerror=N             Quit after N errors
+  --verbose=(0|1)          Control the amount of output.  Default '1'
+  --output=FILE            set --verbose=2 and output to FILE.  Implies -q
+  -q                       Shorthand for --verbose=0
+  --help                   This message
+}
+  exit 1
+}
+
+# The following block only runs the first time this file is sourced. It
+# does not run in slave interpreters (since the ::cmdlinearg array is
+# populated before the test script is run in slave interpreters).
+#
+if {[info exists cmdlinearg]==0} {
+
+  # Parse any options specified in the $argv array. This script accepts the
+  # following options:
+  #
+  #   --pause
+  #   --soft-heap-limit=NN
+  #   --hard-heap-limit=NN
+  #   --maxerror=NN
+  #   --malloctrace=N
+  #   --backtrace=N
+  #   --binarylog=N
+  #   --soak=N
+  #   --file-retries=N
+  #   --file-retry-delay=N
+  #   --start=[$permutation:]$testfile
+  #   --match=$pattern
+  #   --verbose=$val
+  #   --output=$filename
+  #   -q                                      Reduce output
+  #   --testdir=$dir                          Run tests in subdirectory $dir
+  #   --help
+  #
+  set cmdlinearg(soft-heap-limit)    0
+  set cmdlinearg(hard-heap-limit)    0
+  set cmdlinearg(maxerror)        1000
+  set cmdlinearg(malloctrace)        0
+  set cmdlinearg(backtrace)         10
+  set cmdlinearg(binarylog)          0
+  set cmdlinearg(soak)               0
+  set cmdlinearg(file-retries)       0
+  set cmdlinearg(file-retry-delay)   0
+  set cmdlinearg(start)             ""
+  set cmdlinearg(match)             ""
+  set cmdlinearg(verbose)           ""
+  set cmdlinearg(output)            ""
+  set cmdlinearg(testdir)           "testdir"
+
+  set leftover [list]
+  foreach a $argv {
+    switch -regexp -- $a {
+      {^-+pause$} {
+        # Wait for user input before continuing. This is to give the user an
+        # opportunity to connect profiling tools to the process.
+        puts -nonewline "Press RETURN to begin..."
+        flush stdout
+        gets stdin
+      }
+      {^-+soft-heap-limit=.+$} {
+        foreach {dummy cmdlinearg(soft-heap-limit)} [split $a =] break
+      }
+      {^-+hard-heap-limit=.+$} {
+        foreach {dummy cmdlinearg(hard-heap-limit)} [split $a =] break
+      }
+      {^-+maxerror=.+$} {
+        foreach {dummy cmdlinearg(maxerror)} [split $a =] break
+      }
+      {^-+malloctrace=.+$} {
+        foreach {dummy cmdlinearg(malloctrace)} [split $a =] break
+        if {$cmdlinearg(malloctrace)} {
+          if {0==$::sqlite_options(memdebug)} {
+            set err "Error: --malloctrace=1 requires an SQLITE_MEMDEBUG build"
+            puts stderr $err
+            exit 1
+          }
+          sqlite3_memdebug_log start
+        }
+      }
+      {^-+backtrace=.+$} {
+        foreach {dummy cmdlinearg(backtrace)} [split $a =] break
+        sqlite3_memdebug_backtrace $cmdlinearg(backtrace)
+      }
+      {^-+binarylog=.+$} {
+        foreach {dummy cmdlinearg(binarylog)} [split $a =] break
+        set cmdlinearg(binarylog) [file normalize $cmdlinearg(binarylog)]
+      }
+      {^-+soak=.+$} {
+        foreach {dummy cmdlinearg(soak)} [split $a =] break
+        set ::G(issoak) $cmdlinearg(soak)
+      }
+      {^-+file-retries=.+$} {
+        foreach {dummy cmdlinearg(file-retries)} [split $a =] break
+        set ::G(file-retries) $cmdlinearg(file-retries)
+      }
+      {^-+file-retry-delay=.+$} {
+        foreach {dummy cmdlinearg(file-retry-delay)} [split $a =] break
+        set ::G(file-retry-delay) $cmdlinearg(file-retry-delay)
+      }
+      {^-+start=.+$} {
+        foreach {dummy cmdlinearg(start)} [split $a =] break
+
+        set ::G(start:file) $cmdlinearg(start)
+        if {[regexp {(.*):(.*)} $cmdlinearg(start) -> s.perm s.file]} {
+          set ::G(start:permutation) ${s.perm}
+          set ::G(start:file)        ${s.file}
+        }
+        if {$::G(start:file) == ""} {unset ::G(start:file)}
+      }
+      {^-+match=.+$} {
+        foreach {dummy cmdlinearg(match)} [split $a =] break
+
+        set ::G(match) $cmdlinearg(match)
+        if {$::G(match) == ""} {unset ::G(match)}
+      }
+
+      {^-+output=.+$} {
+        foreach {dummy cmdlinearg(output)} [split $a =] break
+        set cmdlinearg(output) [file normalize $cmdlinearg(output)]
+        if {$cmdlinearg(verbose)==""} {
+          set cmdlinearg(verbose) 2
+        }
+      }
+      {^-+verbose=.+$} {
+        foreach {dummy cmdlinearg(verbose)} [split $a =] break
+        if {$cmdlinearg(verbose)=="file"} {
+          set cmdlinearg(verbose) 2
+        } elseif {[string is boolean -strict $cmdlinearg(verbose)]==0} {
+          error "option --verbose= must be set to a boolean or to \"file\""
+        }
+      }
+      {^-+testdir=.*$} {
+        foreach {dummy cmdlinearg(testdir)} [split $a =] break
+      }
+      {.*help.*} {
+         print_help_and_quit
+      }
+      {^-q$} {
+        set cmdlinearg(output) test-out.txt
+        set cmdlinearg(verbose) 2
+      }
+
+      default {
+        if {[file tail $a]==$a} {
+          lappend leftover $a
+        } else {
+          lappend leftover [file normalize $a]
+        }
+      }
+    }
+  }
+  unset -nocomplain a
+  set testdir [file normalize $testdir]
+  set cmdlinearg(TESTFIXTURE_HOME) [file dirname [info nameofexec]]
+  set cmdlinearg(INFO_SCRIPT) [file normalize [info script]]
+  set argv0 [file normalize $argv0]
+  if {$cmdlinearg(testdir)!=""} {
+    file mkdir $cmdlinearg(testdir)
+    cd $cmdlinearg(testdir)
+  }
+  set argv $leftover
+
+  # Install the malloc layer used to inject OOM errors. And the 'automatic'
+  # extensions. This only needs to be done once for the process.
+  #
+  sqlite3_shutdown
+  install_malloc_faultsim 1
+  sqlite3_initialize
+  autoinstall_test_functions
+
+  # If the --binarylog option was specified, create the logging VFS. This
+  # call installs the new VFS as the default for all SQLite connections.
+  #
+  if {$cmdlinearg(binarylog)} {
+    vfslog new binarylog {} vfslog.bin
+  }
+
+  # Set the backtrace depth, if malloc tracing is enabled.
+  #
+  if {$cmdlinearg(malloctrace)} {
+    sqlite3_memdebug_backtrace $cmdlinearg(backtrace)
+  }
+
+  if {$cmdlinearg(output)!=""} {
+    puts "Copying output to file $cmdlinearg(output)"
+    set ::G(output_fd) [open $cmdlinearg(output) w]
+    fconfigure $::G(output_fd) -buffering line
+  }
+
+  if {$cmdlinearg(verbose)==""} {
+    set cmdlinearg(verbose) 1
+  }
+
+  if {[info commands vdbe_coverage]!=""} {
+    vdbe_coverage start
+  }
+}
+
+# Update the soft-heap-limit each time this script is run. In that
+# way if an individual test file changes the soft-heap-limit, it
+# will be reset at the start of the next test file.
+#
+sqlite3_soft_heap_limit64 $cmdlinearg(soft-heap-limit)
+sqlite3_hard_heap_limit64 $cmdlinearg(hard-heap-limit)
+
+# Create a test database
+#
+proc reset_db {} {
+  catch {db close}
+  forcedelete test.db
+  forcedelete test.db-journal
+  forcedelete test.db-wal
+  sqlite3 db ./test.db
+  set ::DB [sqlite3_connection_pointer db]
+  if {[info exists ::SETUP_SQL]} {
+    db eval $::SETUP_SQL
+  }
+}
+reset_db
+
+# Abort early if this script has been run before.
+#
+if {[info exists TC(count)]} return
+
+# Make sure memory statistics are enabled.
+#
+sqlite3_config_memstatus 1
+
+# Initialize the test counters and set up commands to access them.
+# Or, if this is a slave interpreter, set up aliases to write the
+# counters in the parent interpreter.
+#
+if {0==[info exists ::SLAVE]} {
+  set TC(errors)    0
+  set TC(count)     0
+  set TC(fail_list) [list]
+  set TC(omit_list) [list]
+  set TC(warn_list) [list]
+
+  proc set_test_counter {counter args} {
+    if {[llength $args]} {
+      set ::TC($counter) [lindex $args 0]
+    }
+    set ::TC($counter)
+  }
+}
+
+# Record the fact that a sequence of tests were omitted.
+#
+proc omit_test {name reason {append 1}} {
+  set omitList [set_test_counter omit_list]
+  if {$append} {
+    lappend omitList [list $name $reason]
+  }
+  set_test_counter omit_list $omitList
+}
+
+# Record the fact that a test failed.
+#
+proc fail_test {name} {
+  set f [set_test_counter fail_list]
+  lappend f $name
+  set_test_counter fail_list $f
+  set_test_counter errors [expr [set_test_counter errors] + 1]
+
+  set nFail [set_test_counter errors]
+  if {$nFail>=$::cmdlinearg(maxerror)} {
+    output2 "*** Giving up..."
+    finalize_testing
+  }
+}
+
+# Remember a warning message to be displayed at the conclusion of all testing
+#
+proc warning {msg {append 1}} {
+  output2 "Warning: $msg"
+  set warnList [set_test_counter warn_list]
+  if {$append} {
+    lappend warnList $msg
+  }
+  set_test_counter warn_list $warnList
+}
+
+
+# Increment the number of tests run
+#
+proc incr_ntest {} {
+  set_test_counter count [expr [set_test_counter count] + 1]
+}
+
+# Return true if --verbose=1 was specified on the command line. Otherwise,
+# return false.
+#
+proc verbose {} {
+  return $::cmdlinearg(verbose)
+}
+
+# Use the following commands instead of [puts] for test output within
+# this file. Test scripts can still use regular [puts], which is directed
+# to stdout and, if one is open, the --output file.
+#
+# output1: output that should be printed if --verbose=1 was specified.
+# output2: output that should be printed unconditionally.
+# output2_if_no_verbose: output that should be printed only if --verbose=0.
+#
+proc output1 {args} {
+  set v [verbose]
+  if {$v==1} {
+    uplevel output2 $args
+  } elseif {$v==2} {
+    uplevel puts [lrange $args 0 end-1] $::G(output_fd) [lrange $args end end]
+  }
+}
+proc output2 {args} {
+  set nArg [llength $args]
+  uplevel puts $args
+}
+proc output2_if_no_verbose {args} {
+  set v [verbose]
+  if {$v==0} {
+    uplevel output2 $args
+  } elseif {$v==2} {
+    uplevel puts [lrange $args 0 end-1] stdout [lrange $args end end]
+  }
+}
+
+# Override the [puts] command so that if no channel is explicitly 
+# specified the string is written to both stdout and to the file 
+# specified by "--output=", if any.
+#
+proc puts_override {args} {
+  set nArg [llength $args]
+  if {$nArg==1 || ($nArg==2 && [string first [lindex $args 0] -nonewline]==0)} {
+    uplevel puts_original $args
+    if {[info exists ::G(output_fd)]} {
+      uplevel puts [lrange $args 0 end-1] $::G(output_fd) [lrange $args end end]
+    }
+  } else {
+    # A channel was explicitly specified.
+    uplevel puts_original $args
+  }
+}
+rename puts puts_original
+proc puts {args} { uplevel puts_override $args }
+
+
+# Invoke the do_test procedure to run a single test
+#
+# The $expected parameter is the expected result.  The result is the return
+# value from the last TCL command in $cmd.
+#
+# Normally, $expected must match exactly.  But if $expected is of the form
+# "/regexp/" then regular expression matching is used.  If $expected is
+# "~/regexp/" then the regular expression must NOT match.  If $expected is
+# of the form "#/value-list/" then each term in value-list must be numeric
+# and must approximately match the corresponding numeric term in $result.
+# Values must match within 10%.  Or if the $expected term is A..B then the
+# $result term must be in between A and B.
+#
+proc do_test {name cmd expected} {
+  global argv cmdlinearg
+
+  fix_testname name
+
+  sqlite3_memdebug_settitle $name
+
+#  if {[llength $argv]==0} {
+#    set go 1
+#  } else {
+#    set go 0
+#    foreach pattern $argv {
+#      if {[string match $pattern $name]} {
+#        set go 1
+#        break
+#      }
+#    }
+#  }
+
+  if {[info exists ::G(perm:prefix)]} {
+    set name "$::G(perm:prefix)$name"
+  }
+
+  incr_ntest
+  output1 -nonewline $name...
+  flush stdout
+
+  if {![info exists ::G(match)] || [string match $::G(match) $name]} {
+    if {[catch {uplevel #0 "$cmd;\n"} result]} {
+      output2_if_no_verbose -nonewline $name...
+      output2 "\nError: $result"
+      fail_test $name
+    } else {
+      if {[permutation]=="maindbname"} {
+        set result [string map [list [string tolower ICECUBE] main] $result]
+      }
+      if {[regexp {^[~#]?/.*/$} $expected]} {
+        # "expected" is of the form "/PATTERN/" then the result if correct if
+        # regular expression PATTERN matches the result.  "~/PATTERN/" means
+        # the regular expression must not match.
+        if {[string index $expected 0]=="~"} {
+          set re [string range $expected 2 end-1]
+          if {[string index $re 0]=="*"} {
+            # If the regular expression begins with * then treat it as a glob instead
+            set ok [string match $re $result]
+          } else {
+            set re [string map {# {[-0-9.]+}} $re]
+            set ok [regexp $re $result]
+          }
+          set ok [expr {!$ok}]
+        } elseif {[string index $expected 0]=="#"} {
+          # Numeric range value comparison.  Each term of the $result is matched
+          # against one term of $expect.  Both $result and $expected terms must be
+          # numeric.  The values must match within 10%.  Or if $expected is of the
+          # form A..B then the $result term must be between A and B.
+          set e2 [string range $expected 2 end-1]
+          foreach i $result j $e2 {
+            if {[regexp {^(-?\d+)\.\.(-?\d)$} $j all A B]} {
+              set ok [expr {$i+0>=$A && $i+0<=$B}]
+            } else {
+              set ok [expr {$i+0>=0.9*$j && $i+0<=1.1*$j}]
+            }
+            if {!$ok} break
+          }
+          if {$ok && [llength $result]!=[llength $e2]} {set ok 0}
+        } else {
+          set re [string range $expected 1 end-1]
+          if {[string index $re 0]=="*"} {
+            # If the regular expression begins with * then treat it as a glob instead
+            set ok [string match $re $result]
+          } else {
+            set re [string map {# {[-0-9.]+}} $re]
+            set ok [regexp $re $result]
+          }
+        }
+      } elseif {[regexp {^~?\*.*\*$} $expected]} {
+        # "expected" is of the form "*GLOB*" then the result if correct if
+        # glob pattern GLOB matches the result.  "~/GLOB/" means
+        # the glob must not match.
+        if {[string index $expected 0]=="~"} {
+          set e [string range $expected 1 end]
+          set ok [expr {![string match $e $result]}]
+        } else {
+          set ok [string match $expected $result]
+        }
+      } else {
+        set ok [expr {[string compare $result $expected]==0}]
+        if {!$ok} {
+          set ok [fpnum_compare $result $expected]
+        }
+      }
+      if {!$ok} {
+        # if {![info exists ::testprefix] || $::testprefix eq ""} {
+        #   error "no test prefix"
+        # }
+        output1 ""
+        output2 "! $name expected: \[$expected\]\n! $name got:      \[$result\]"
+        fail_test $name
+      } else {
+        output1 " Ok"
+      }
+    }
+  } else {
+    output1 " Omitted"
+    omit_test $name "pattern mismatch" 0
+  }
+  flush stdout
+}
+
+proc dumpbytes {s} {
+  set r ""
+  for {set i 0} {$i < [string length $s]} {incr i} {
+    if {$i > 0} {append r " "}
+    append r [format %02X [scan [string index $s $i] %c]]
+  }
+  return $r
+}
+
+proc catchcmd {db {cmd ""}} {
+  global CLI
+  set out [open cmds.txt w]
+  puts $out $cmd
+  close $out
+  set line "exec $CLI $db < cmds.txt"
+  set rc [catch { eval $line } msg]
+  list $rc $msg
+}
+proc catchsafecmd {db {cmd ""}} {
+  global CLI
+  set out [open cmds.txt w]
+  puts $out $cmd
+  close $out
+  set line "exec $CLI -safe $db < cmds.txt"
+  set rc [catch { eval $line } msg]
+  list $rc $msg
+}
+
+proc catchcmdex {db {cmd ""}} {
+  global CLI
+  set out [open cmds.txt w]
+  fconfigure $out -translation binary
+  puts -nonewline $out $cmd
+  close $out
+  set line "exec -keepnewline -- $CLI $db < cmds.txt"
+  set chans [list stdin stdout stderr]
+  foreach chan $chans {
+    catch {
+      set modes($chan) [fconfigure $chan]
+      fconfigure $chan -translation binary -buffering none
+    }
+  }
+  set rc [catch { eval $line } msg]
+  foreach chan $chans {
+    catch {
+      eval fconfigure [list $chan] $modes($chan)
+    }
+  }
+  # puts [dumpbytes $msg]
+  list $rc $msg
+}
+
+proc filepath_normalize {p} {
+  # test cases should be written to assume "unix"-like file paths
+  if {$::tcl_platform(platform)!="unix"} {
+    string map [list \\ / \{/ / .db\} .db] \
+        [regsub -nocase -all {[a-z]:[/\\]+} $p {/}]
+  } {
+    set p
+  }
+}
+proc do_filepath_test {name cmd expected} {
+  uplevel [list do_test $name [
+    subst -nocommands { filepath_normalize [ $cmd ] }
+  ] [filepath_normalize $expected]]
+}
+
+proc realnum_normalize {r} {
+  # different TCL versions display floating point values differently.
+  string map {1.#INF inf Inf inf .0e e} [regsub -all {(e[+-])0+} $r {\1}]
+}
+proc do_realnum_test {name cmd expected} {
+  uplevel [list do_test $name [
+    subst -nocommands { realnum_normalize [ $cmd ] }
+  ] [realnum_normalize $expected]]
+}
+
+proc fix_testname {varname} {
+  upvar $varname testname
+  if {[info exists ::testprefix]
+   && [string is digit [string range $testname 0 0]]
+  } {
+    set testname "${::testprefix}-$testname"
+  }
+}
+
+proc normalize_list {L} {
+  set L2 [list]
+  foreach l $L {lappend L2 $l}
+  set L2
+}
+
+# Run SQL and verify that the number of "vmsteps" required is greater
+# than or less than some constant.
+#
+proc do_vmstep_test {tn sql nstep {res {}}} {
+  uplevel [list do_execsql_test $tn.0 $sql $res]
+
+  set vmstep [db status vmstep]
+  if {[string range $nstep 0 0]=="+"} {
+    set body "if {$vmstep<$nstep} {
+      error \"got $vmstep, expected more than [string range $nstep 1 end]\"
+    }"
+  } else {
+    set body "if {$vmstep>$nstep} {
+      error \"got $vmstep, expected less than $nstep\"
+    }"
+  }
+
+  # set name "$tn.vmstep=$vmstep,expect=$nstep"
+  set name "$tn.1"
+  uplevel [list do_test $name $body {}]
+}
+
+
+# Either:
+#
+#   do_execsql_test TESTNAME SQL ?RES?
+#   do_execsql_test -db DB TESTNAME SQL ?RES?
+#
+proc do_execsql_test {args} {
+  set db db
+  if {[lindex $args 0]=="-db"} {
+    set db [lindex $args 1]
+    set args [lrange $args 2 end]
+  }
+
+  if {[llength $args]==2} {
+    foreach {testname sql} $args {}
+    set result ""
+  } elseif {[llength $args]==3} {
+    foreach {testname sql result} $args {}
+
+    # With some versions of Tcl on windows, if $result is all whitespace but
+    # contains some CR/LF characters, the [list {*}$result] below returns a
+    # copy of $result instead of a zero length string. Not clear exactly why
+    # this is. The following is a workaround.
+    if {[llength $result]==0} { set result "" }
+  } else {
+    error [string trim {
+      wrong # args: should be "do_execsql_test ?-db DB? testname sql ?result?"
+    }]
+  }
+
+  fix_testname testname
+
+  uplevel do_test                 \
+      [list $testname]            \
+      [list "execsql {$sql} $db"] \
+      [list [list {*}$result]]
+}
+
+proc do_catchsql_test {testname sql result} {
+  fix_testname testname
+  uplevel do_test [list $testname] [list "catchsql {$sql}"] [list $result]
+}
+proc do_timed_execsql_test {testname sql {result {}}} {
+  fix_testname testname
+  uplevel do_test [list $testname] [list "execsql_timed {$sql}"]\
+                                   [list [list {*}$result]]
+}
+
+# Run an EXPLAIN QUERY PLAN $sql in database "db".  Then rewrite the output
+# as an ASCII-art graph and return a string that is that graph.
+#
+# Hexadecimal literals in the output text are converted into "xxxxxx" since those
+# literals are pointer values that might very from one run of the test to the
+# next, yet we want the output to be consistent.
+#
+proc query_plan_graph {sql} {
+  db eval "EXPLAIN QUERY PLAN $sql" {
+    set dx($id) $detail
+    lappend cx($parent) $id
+  }
+  set a "\n  QUERY PLAN\n"
+  append a [append_graph "  " dx cx 0]
+  regsub -all {SUBQUERY 0x[A-F0-9]+\y} $a {SUBQUERY xxxxxx} a
+  regsub -all {(MATERIALIZE|CO-ROUTINE|SUBQUERY) \d+\y} $a {\1 xxxxxx} a
+  regsub -all {\((join|subquery)-\d+\)} $a {(\1-xxxxxx)} a
+  return $a
+}
+
+# Helper routine for [query_plan_graph SQL]:
+#
+# Output rows of the graph that are children of $level.
+#
+#   prefix:  Prepend to every output line
+#
+#   dxname:  Name of an array variable that stores text describe
+#            The description for $id is $dx($id)
+#
+#   cxname:  Name of an array variable holding children of item.
+#            Children of $id are $cx($id)
+#
+#   level:   Render all lines that are children of $level
+# 
+proc append_graph {prefix dxname cxname level} {
+  upvar $dxname dx $cxname cx
+  set a ""
+  set x $cx($level)
+  set n [llength $x]
+  for {set i 0} {$i<$n} {incr i} {
+    set id [lindex $x $i]
+    if {$i==$n-1} {
+      set p1 "`--"
+      set p2 "   "
+    } else {
+      set p1 "|--"
+      set p2 "|  "
+    }
+    append a $prefix$p1$dx($id)\n
+    if {[info exists cx($id)]} {
+      append a [append_graph "$prefix$p2" dx cx $id]
+    }
+  }
+  return $a
+}
+
+# Do an EXPLAIN QUERY PLAN test on input $sql with expected results $res
+#
+# If $res begins with a "\s+QUERY PLAN\n" then it is assumed to be the 
+# complete graph which must match the output of [query_plan_graph $sql]
+# exactly.
+#
+# If $res does not begin with "\s+QUERY PLAN\n" then take it is a string
+# that must be found somewhere in the query plan output.
+#
+proc do_eqp_test {name sql res} {
+  if {[regexp {^\s+QUERY PLAN\n} $res]} {
+
+    set query_plan [query_plan_graph $sql]
+
+    if {[list {*}$query_plan]==[list {*}$res]} {
+      uplevel [list do_test $name [list set {} ok] ok]
+    } else {
+      uplevel [list \
+        do_test $name [list query_plan_graph $sql] $res
+      ]
+    }
+  } else {
+    if {[string index $res 0]!="/"} {
+      set res "/*$res*/"
+    }
+    uplevel do_execsql_test $name [list "EXPLAIN QUERY PLAN $sql"] [list $res]
+  }
+}
+
+# Do both an eqp_test and an execsql_test on the same SQL.
+#
+proc do_eqp_execsql_test {name sql res1 res2} {
+  if {[regexp {^\s+QUERY PLAN\n} $res1]} {
+
+    set query_plan [query_plan_graph $sql]
+
+    if {[list {*}$query_plan]==[list {*}$res1]} {
+      uplevel [list do_test ${name}a [list set {} ok] ok]
+    } else {
+      uplevel [list \
+        do_test ${name}a [list query_plan_graph $sql] $res1
+      ]
+    }
+  } else {
+    if {[string index $res 0]!="/"} {
+      set res1 "/*$res1*/"
+    }
+    uplevel do_execsql_test ${name}a [list "EXPLAIN QUERY PLAN $sql"] [list $res1]
+  }
+  uplevel do_execsql_test ${name}b [list $sql] [list $res2]
+}
+
+
+#-------------------------------------------------------------------------
+#   Usage: do_select_tests PREFIX ?SWITCHES? TESTLIST
+#
+# Where switches are:
+#
+#   -errorformat FMTSTRING
+#   -count
+#   -query SQL
+#   -tclquery TCL
+#   -repair TCL
+#
+proc do_select_tests {prefix args} {
+
+  set testlist [lindex $args end]
+  set switches [lrange $args 0 end-1]
+
+  set errfmt ""
+  set countonly 0
+  set tclquery ""
+  set repair ""
+
+  for {set i 0} {$i < [llength $switches]} {incr i} {
+    set s [lindex $switches $i]
+    set n [string length $s]
+    if {$n>=2 && [string equal -length $n $s "-query"]} {
+      set tclquery [list execsql [lindex $switches [incr i]]]
+    } elseif {$n>=2 && [string equal -length $n $s "-tclquery"]} {
+      set tclquery [lindex $switches [incr i]]
+    } elseif {$n>=2 && [string equal -length $n $s "-errorformat"]} {
+      set errfmt [lindex $switches [incr i]]
+    } elseif {$n>=2 && [string equal -length $n $s "-repair"]} {
+      set repair [lindex $switches [incr i]]
+    } elseif {$n>=2 && [string equal -length $n $s "-count"]} {
+      set countonly 1
+    } else {
+      error "unknown switch: $s"
+    }
+  }
+
+  if {$countonly && $errfmt!=""} {
+    error "Cannot use -count and -errorformat together"
+  }
+  set nTestlist [llength $testlist]
+  if {$nTestlist%3 || $nTestlist==0 } {
+    error "SELECT test list contains [llength $testlist] elements"
+  }
+
+  eval $repair
+  foreach {tn sql res} $testlist {
+    if {$tclquery != ""} {
+      execsql $sql
+      uplevel do_test ${prefix}.$tn [list $tclquery] [list [list {*}$res]]
+    } elseif {$countonly} {
+      set nRow 0
+      db eval $sql {incr nRow}
+      uplevel do_test ${prefix}.$tn [list [list set {} $nRow]] [list $res]
+    } elseif {$errfmt==""} {
+      uplevel do_execsql_test ${prefix}.${tn} [list $sql] [list [list {*}$res]]
+    } else {
+      set res [list 1 [string trim [format $errfmt {*}$res]]]
+      uplevel do_catchsql_test ${prefix}.${tn} [list $sql] [list $res]
+    }
+    eval $repair
+  }
+
+}
+
+proc delete_all_data {} {
+  db eval {SELECT tbl_name AS t FROM sqlite_master WHERE type = 'table'} {
+    db eval "DELETE FROM '[string map {' ''} $t]'"
+  }
+}
+
+# Run an SQL script.
+# Return the number of microseconds per statement.
+#
+proc speed_trial {name numstmt units sql} {
+  output2 -nonewline [format {%-21.21s } $name...]
+  flush stdout
+  set speed [time {sqlite3_exec_nr db $sql}]
+  set tm [lindex $speed 0]
+  if {$tm == 0} {
+    set rate [format %20s "many"]
+  } else {
+    set rate [format %20.5f [expr {1000000.0*$numstmt/$tm}]]
+  }
+  set u2 $units/s
+  output2 [format {%12d uS %s %s} $tm $rate $u2]
+  global total_time
+  set total_time [expr {$total_time+$tm}]
+  lappend ::speed_trial_times $name $tm
+}
+proc speed_trial_tcl {name numstmt units script} {
+  output2 -nonewline [format {%-21.21s } $name...]
+  flush stdout
+  set speed [time {eval $script}]
+  set tm [lindex $speed 0]
+  if {$tm == 0} {
+    set rate [format %20s "many"]
+  } else {
+    set rate [format %20.5f [expr {1000000.0*$numstmt/$tm}]]
+  }
+  set u2 $units/s
+  output2 [format {%12d uS %s %s} $tm $rate $u2]
+  global total_time
+  set total_time [expr {$total_time+$tm}]
+  lappend ::speed_trial_times $name $tm
+}
+proc speed_trial_init {name} {
+  global total_time
+  set total_time 0
+  set ::speed_trial_times [list]
+  sqlite3 versdb :memory:
+  set vers [versdb one {SELECT sqlite_source_id()}]
+  versdb close
+  output2 "SQLite $vers"
+}
+proc speed_trial_summary {name} {
+  global total_time
+  output2 [format {%-21.21s %12d uS TOTAL} $name $total_time]
+
+  if { 0 } {
+    sqlite3 versdb :memory:
+    set vers [lindex [versdb one {SELECT sqlite_source_id()}] 0]
+    versdb close
+    output2 "CREATE TABLE IF NOT EXISTS time(version, script, test, us);"
+    foreach {test us} $::speed_trial_times {
+      output2 "INSERT INTO time VALUES('$vers', '$name', '$test', $us);"
+    }
+  }
+}
+
+# Clear out left-over configuration setup from the end of a test
+#
+proc finish_test_precleanup {} {
+  catch {db1 close}
+  catch {db2 close}
+  catch {db3 close}
+  catch {unregister_devsim}
+  catch {unregister_jt_vfs}
+  catch {unregister_demovfs}
+}
+
+# Run this routine last
+#
+proc finish_test {} {
+  global argv
+  finish_test_precleanup
+  if {[llength $argv]>0} {
+    # If additional test scripts are specified on the command-line, 
+    # run them also, before quitting.
+    proc finish_test {} {
+      finish_test_precleanup
+      return
+    }
+    foreach extra $argv {
+      puts "Running \"$extra\""
+      db_delete_and_reopen
+      uplevel #0 source $extra
+    }
+  }
+  catch {db close}
+  if {0==[info exists ::SLAVE]} { finalize_testing }
+}
+proc finalize_testing {} {
+  global sqlite_open_file_count
+
+  set omitList [set_test_counter omit_list]
+
+  catch {db close}
+  catch {db2 close}
+  catch {db3 close}
+
+  vfs_unlink_test
+  sqlite3 db {}
+  # sqlite3_clear_tsd_memdebug
+  db close
+  sqlite3_reset_auto_extension
+
+  sqlite3_soft_heap_limit64 0
+  sqlite3_hard_heap_limit64 0
+  set nTest [incr_ntest]
+  set nErr [set_test_counter errors]
+
+  set nKnown 0
+  if {[file readable known-problems.txt]} {
+    set fd [open known-problems.txt]
+    set content [read $fd]
+    close $fd
+    foreach x $content {set known_error($x) 1}
+    foreach x [set_test_counter fail_list] {
+      if {[info exists known_error($x)]} {incr nKnown}
+    }
+  }
+  if {$nKnown>0} {
+    output2 "[expr {$nErr-$nKnown}] new errors and $nKnown known errors\
+         out of $nTest tests"
+  } else {
+    set cpuinfo {}
+    if {[catch {exec hostname} hname]==0} {
+      regsub {\.local$} $hname {} hname
+      set cpuinfo [string trim $hname]
+    }
+    append cpuinfo " $::tcl_platform(os)"
+    append cpuinfo " [expr {$::tcl_platform(pointerSize)*8}]-bit"
+    if {[string match big* $::tcl_platform(byteOrder)]} {
+      append cpuinfo " [string map {E -e} $::tcl_platform(byteOrder)]"
+    }
+    output2 "SQLite [sqlite3 -sourceid]"
+    output2 "$nErr errors out of $nTest tests on $cpuinfo"
+  }
+  if {$nErr>$nKnown} {
+    output2 -nonewline "!Failures on these tests:"
+    foreach x [set_test_counter fail_list] {
+      if {![info exists known_error($x)]} {output2 -nonewline " $x"}
+    }
+    output2 ""
+  }
+  foreach warning [set_test_counter warn_list] {
+    output2 "Warning: $warning"
+  }
+  run_thread_tests 1
+  if {[llength $omitList]>0} {
+    output2 "Omitted test cases:"
+    set prec {}
+    foreach {rec} [lsort $omitList] {
+      if {$rec==$prec} continue
+      set prec $rec
+      output2 [format {.  %-12s %s} [lindex $rec 0] [lindex $rec 1]]
+    }
+  }
+  if {$nErr>0 && ![working_64bit_int]} {
+    output2 "******************************************************************"
+    output2 "N.B.:  The version of TCL that you used to build this test harness"
+    output2 "is defective in that it does not support 64-bit integers.  Some or"
+    output2 "all of the test failures above might be a result from this defect"
+    output2 "in your TCL build."
+    output2 "******************************************************************"
+  }
+  if {$::cmdlinearg(binarylog)} {
+    vfslog finalize binarylog
+  }
+  if {[info exists ::run_thread_tests_called]==0} {
+    if {$sqlite_open_file_count} {
+      output2 "$sqlite_open_file_count files were left open"
+      incr nErr
+    }
+  }
+  if {[lindex [sqlite3_status SQLITE_STATUS_MALLOC_COUNT 0] 1]>0 ||
+              [sqlite3_memory_used]>0} {
+    output2 "Unfreed memory: [sqlite3_memory_used] bytes in\
+         [lindex [sqlite3_status SQLITE_STATUS_MALLOC_COUNT 0] 1] allocations"
+    incr nErr
+    ifcapable mem5||(mem3&&debug) {
+      output2 "Writing unfreed memory log to \"./memleak.txt\""
+      sqlite3_memdebug_dump ./memleak.txt
+    }
+  } else {
+    output2 "All memory allocations freed - no leaks"
+    ifcapable mem5 {
+      sqlite3_memdebug_dump ./memusage.txt
+    }
+  }
+  show_memstats
+  output2 "Maximum memory usage: [sqlite3_memory_highwater 1] bytes"
+  output2 "Current memory usage: [sqlite3_memory_highwater] bytes"
+  if {[info commands sqlite3_memdebug_malloc_count] ne ""} {
+    output2 "Number of malloc()  : [sqlite3_memdebug_malloc_count] calls"
+  }
+  if {$::cmdlinearg(malloctrace)} {
+    output2 "Writing mallocs.tcl..."
+    memdebug_log_sql mallocs.tcl
+    sqlite3_memdebug_log stop
+    sqlite3_memdebug_log clear
+    if {[sqlite3_memory_used]>0} {
+      output2 "Writing leaks.tcl..."
+      sqlite3_memdebug_log sync
+      memdebug_log_sql leaks.tcl
+    }
+  }
+  if {[info commands vdbe_coverage]!=""} {
+    vdbe_coverage_report
+  }
+  foreach f [glob -nocomplain test.db-*-journal] {
+    forcedelete $f
+  }
+  foreach f [glob -nocomplain test.db-mj*] {
+    forcedelete $f
+  }
+  exit [expr {$nErr>0}]
+}
+
+proc vdbe_coverage_report {} {
+  puts "Writing vdbe coverage report to vdbe_coverage.txt"
+  set lSrc [list]
+  set iLine 0
+  if {[file exists ../sqlite3.c]} {
+    set fd [open ../sqlite3.c]
+    set iLine
+    while { ![eof $fd] } {
+      set line [gets $fd]
+      incr iLine
+      if {[regexp {^/\** Begin file (.*\.c) \**/} $line -> file]} {
+        lappend lSrc [list $iLine $file]
+      }
+    }
+    close $fd
+  }
+  set fd [open vdbe_coverage.txt w]
+  foreach miss [vdbe_coverage report] {
+    foreach {line branch never} $miss {}
+    set nextfile ""
+    while {[llength $lSrc]>0 && [lindex $lSrc 0 0] < $line} {
+      set nextfile [lindex $lSrc 0 1]
+      set lSrc [lrange $lSrc 1 end]
+    }
+    if {$nextfile != ""} {
+      puts $fd ""
+      puts $fd "### $nextfile ###"
+    }
+    puts $fd "Vdbe branch $line: never $never (path $branch)"
+  }
+  close $fd
+}
+
+# Display memory statistics for analysis and debugging purposes.
+#
+proc show_memstats {} {
+  set x [sqlite3_status SQLITE_STATUS_MEMORY_USED 0]
+  set y [sqlite3_status SQLITE_STATUS_MALLOC_SIZE 0]
+  set val [format {now %10d  max %10d  max-size %10d} \
+              [lindex $x 1] [lindex $x 2] [lindex $y 2]]
+  output1 "Memory used:          $val"
+  set x [sqlite3_status SQLITE_STATUS_MALLOC_COUNT 0]
+  set val [format {now %10d  max %10d} [lindex $x 1] [lindex $x 2]]
+  output1 "Allocation count:     $val"
+  set x [sqlite3_status SQLITE_STATUS_PAGECACHE_USED 0]
+  set y [sqlite3_status SQLITE_STATUS_PAGECACHE_SIZE 0]
+  set val [format {now %10d  max %10d  max-size %10d} \
+              [lindex $x 1] [lindex $x 2] [lindex $y 2]]
+  output1 "Page-cache used:      $val"
+  set x [sqlite3_status SQLITE_STATUS_PAGECACHE_OVERFLOW 0]
+  set val [format {now %10d  max %10d} [lindex $x 1] [lindex $x 2]]
+  output1 "Page-cache overflow:  $val"
+  ifcapable yytrackmaxstackdepth {
+    set x [sqlite3_status SQLITE_STATUS_PARSER_STACK 0]
+    set val [format {               max %10d} [lindex $x 2]]
+    output2 "Parser stack depth:    $val"
+  }
+}
+
+# A procedure to execute SQL
+#
+proc execsql {sql {db db}} {
+  # puts "SQL = $sql"
+  uplevel [list $db eval $sql]
+}
+proc execsql_timed {sql {db db}} {
+  set tm [time {
+    set x [uplevel [list $db eval $sql]]
+  } 1]
+  set tm [lindex $tm 0]
+  output1 -nonewline " ([expr {$tm*0.001}]ms) "
+  set x
+}
+
+# Execute SQL and catch exceptions.
+#
+proc catchsql {sql {db db}} {
+  # puts "SQL = $sql"
+  set r [catch [list uplevel [list $db eval $sql]] msg]
+  lappend r $msg
+  return $r
+}
+
+# Do an VDBE code dump on the SQL given
+#
+proc explain {sql {db db}} {
+  output2 ""
+  output2 "addr  opcode        p1      p2      p3      p4               p5  #"
+  output2 "----  ------------  ------  ------  ------  ---------------  --  -"
+  $db eval "explain $sql" {} {
+    output2 [format {%-4d  %-12.12s  %-6d  %-6d  %-6d  % -17s %s  %s} \
+      $addr $opcode $p1 $p2 $p3 $p4 $p5 $comment
+    ]
+  }
+}
+
+proc explain_i {sql {db db}} {
+  output2 ""
+  output2 "addr  opcode        p1      p2      p3      p4                p5  #"
+  output2 "----  ------------  ------  ------  ------  ----------------  --  -"
+
+
+  # Set up colors for the different opcodes. Scheme is as follows:
+  #
+  #   Red:   Opcodes that write to a b-tree.
+  #   Blue:  Opcodes that reposition or seek a cursor. 
+  #   Green: The ResultRow opcode.
+  #
+  if { [catch {fconfigure stdout -mode}]==0 } {
+    set R "\033\[31;1m"        ;# Red fg
+    set G "\033\[32;1m"        ;# Green fg
+    set B "\033\[34;1m"        ;# Red fg
+    set D "\033\[39;0m"        ;# Default fg
+  } else {
+    set R ""
+    set G ""
+    set B ""
+    set D ""
+  }
+  foreach opcode {
+      Seek SeekGE SeekGT SeekLE SeekLT NotFound Last Rewind
+      NoConflict Next Prev VNext VPrev VFilter
+      SorterSort SorterNext NextIfOpen
+  } {
+    set color($opcode) $B
+  }
+  foreach opcode {ResultRow} {
+    set color($opcode) $G
+  }
+  foreach opcode {IdxInsert Insert Delete IdxDelete} {
+    set color($opcode) $R
+  }
+
+  set bSeenGoto 0
+  $db eval "explain $sql" {} {
+    set x($addr) 0
+    set op($addr) $opcode
+
+    if {$opcode == "Goto" && ($bSeenGoto==0 || ($p2 > $addr+10))} {
+      set linebreak($p2) 1
+      set bSeenGoto 1
+    }
+
+    if {$opcode=="Once"} {
+      for {set i $addr} {$i<$p2} {incr i} {
+        set star($i) $addr
+      }
+    }
+
+    if {$opcode=="Next"  || $opcode=="Prev" 
+     || $opcode=="VNext" || $opcode=="VPrev"
+     || $opcode=="SorterNext" || $opcode=="NextIfOpen"
+    } {
+      for {set i $p2} {$i<$addr} {incr i} {
+        incr x($i) 2
+      }
+    }
+
+    if {$opcode == "Goto" && $p2<$addr && $op($p2)=="Yield"} {
+      for {set i [expr $p2+1]} {$i<$addr} {incr i} {
+        incr x($i) 2
+      }
+    }
+
+    if {$opcode == "Halt" && $comment == "End of coroutine"} {
+      set linebreak([expr $addr+1]) 1
+    }
+  }
+
+  $db eval "explain $sql" {} {
+    if {[info exists linebreak($addr)]} {
+      output2 ""
+    }
+    set I [string repeat " " $x($addr)]
+
+    if {[info exists star($addr)]} {
+      set ii [expr $x($star($addr))]
+      append I "  "
+      set I [string replace $I $ii $ii *]
+    }
+
+    set col ""
+    catch { set col $color($opcode) }
+
+    output2 [format {%-4d  %s%s%-12.12s%s  %-6d  %-6d  %-6d  % -17s %s  %s} \
+      $addr $I $col $opcode $D $p1 $p2 $p3 $p4 $p5 $comment
+    ]
+  }
+  output2 "----  ------------  ------  ------  ------  ----------------  --  -"
+}
+
+proc execsql_pp {sql {db db}} {
+  set nCol 0
+  $db eval $sql A {
+    if {$nCol==0} {
+      set nCol [llength $A(*)]
+      foreach c $A(*) { 
+        set aWidth($c) [string length $c] 
+        lappend data $c
+      }
+    }
+    foreach c $A(*) { 
+      set n [string length $A($c)]
+      if {$n > $aWidth($c)} {
+        set aWidth($c) $n
+      }
+      lappend data $A($c)
+    }
+  }
+  if {$nCol>0} {
+    set nTotal 0
+    foreach e [array names aWidth] { incr nTotal $aWidth($e) }
+    incr nTotal [expr ($nCol-1) * 3]
+    incr nTotal 4
+
+    set fmt ""
+    foreach c $A(*) { 
+      lappend fmt "% -$aWidth($c)s"
+    }
+    set fmt "| [join $fmt { | }] |"
+    
+    puts [string repeat - $nTotal]
+    for {set i 0} {$i < [llength $data]} {incr i $nCol} {
+      set vals [lrange $data $i [expr $i+$nCol-1]]
+      puts [format $fmt {*}$vals]
+      if {$i==0} { puts [string repeat - $nTotal] }
+    }
+    puts [string repeat - $nTotal]
+  }
+}
+
+
+# Show the VDBE program for an SQL statement but omit the Trace
+# opcode at the beginning.  This procedure can be used to prove
+# that different SQL statements generate exactly the same VDBE code.
+#
+proc explain_no_trace {sql} {
+  set tr [db eval "EXPLAIN $sql"]
+  return [lrange $tr 7 end]
+}
+
+# Another procedure to execute SQL.  This one includes the field
+# names in the returned list.
+#
+proc execsql2 {sql} {
+  set result {}
+  db eval $sql data {
+    foreach f $data(*) {
+      lappend result $f $data($f)
+    }
+  }
+  return $result
+}
+
+# Use a temporary in-memory database to execute SQL statements
+#
+proc memdbsql {sql} {
+  sqlite3 memdb :memory:
+  set result [memdb eval $sql]
+  memdb close
+  return $result
+}
+
+# Use the non-callback API to execute multiple SQL statements
+#
+proc stepsql {dbptr sql} {
+  set sql [string trim $sql]
+  set r 0
+  while {[string length $sql]>0} {
+    if {[catch {sqlite3_prepare $dbptr $sql -1 sqltail} vm]} {
+      return [list 1 $vm]
+    }
+    set sql [string trim $sqltail]
+#    while {[sqlite_step $vm N VAL COL]=="SQLITE_ROW"} {
+#      foreach v $VAL {lappend r $v}
+#    }
+    while {[sqlite3_step $vm]=="SQLITE_ROW"} {
+      for {set i 0} {$i<[sqlite3_data_count $vm]} {incr i} {
+        lappend r [sqlite3_column_text $vm $i]
+      }
+    }
+    if {[catch {sqlite3_finalize $vm} errmsg]} {
+      return [list 1 $errmsg]
+    }
+  }
+  return $r
+}
+
+# Do an integrity check of the entire database
+#
+proc integrity_check {name {db db}} {
+  ifcapable integrityck {
+    do_test $name [list execsql {PRAGMA integrity_check} $db] {ok}
+  }
+}
+
+# Check the extended error code
+#
+proc verify_ex_errcode {name expected {db db}} {
+  do_test $name [list sqlite3_extended_errcode $db] $expected
+}
+
+
+# Return true if the SQL statement passed as the second argument uses a
+# statement transaction.
+#
+proc sql_uses_stmt {db sql} {
+  set stmt [sqlite3_prepare $db $sql -1 dummy]
+  set uses [uses_stmt_journal $stmt]
+  sqlite3_finalize $stmt
+  return $uses
+}
+
+proc fix_ifcapable_expr {expr} {
+  set ret ""
+  set state 0
+  for {set i 0} {$i < [string length $expr]} {incr i} {
+    set char [string range $expr $i $i]
+    set newstate [expr {[string is alnum $char] || $char eq "_"}]
+    if {$newstate && !$state} {
+      append ret {$::sqlite_options(}
+    }
+    if {!$newstate && $state} {
+      append ret )
+    }
+    append ret $char
+    set state $newstate
+  }
+  if {$state} {append ret )}
+  return $ret
+}
+
+# Returns non-zero if the capabilities are present; zero otherwise.
+#
+proc capable {expr} {
+  set e [fix_ifcapable_expr $expr]; return [expr ($e)]
+}
+
+# Evaluate a boolean expression of capabilities.  If true, execute the
+# code.  Omit the code if false.
+#
+proc ifcapable {expr code {else ""} {elsecode ""}} {
+  #regsub -all {[a-z_0-9]+} $expr {$::sqlite_options(&)} e2
+  set e2 [fix_ifcapable_expr $expr]
+  if ($e2) {
+    set c [catch {uplevel 1 $code} r]
+  } else {
+    set c [catch {uplevel 1 $elsecode} r]
+  }
+  return -code $c $r
+}
+
+# This proc execs a seperate process that crashes midway through executing
+# the SQL script $sql on database test.db.
+#
+# The crash occurs during a sync() of file $crashfile. When the crash
+# occurs a random subset of all unsynced writes made by the process are
+# written into the files on disk. Argument $crashdelay indicates the
+# number of file syncs to wait before crashing.
+#
+# The return value is a list of two elements. The first element is a
+# boolean, indicating whether or not the process actually crashed or
+# reported some other error. The second element in the returned list is the
+# error message. This is "child process exited abnormally" if the crash
+# occurred.
+#
+#   crashsql -delay CRASHDELAY -file CRASHFILE ?-blocksize BLOCKSIZE? $sql
+#
+proc crashsql {args} {
+
+  set blocksize ""
+  set crashdelay 1
+  set prngseed 0
+  set opendb { sqlite3 db test.db -vfs crash }
+  set tclbody {}
+  set crashfile ""
+  set dc ""
+  set dfltvfs 0
+  set sql [lindex $args end]
+
+  for {set ii 0} {$ii < [llength $args]-1} {incr ii 2} {
+    set z [lindex $args $ii]
+    set n [string length $z]
+    set z2 [lindex $args [expr $ii+1]]
+
+    if     {$n>1 && [string first $z -delay]==0}     {set crashdelay $z2} \
+    elseif {$n>1 && [string first $z -opendb]==0}    {set opendb $z2} \
+    elseif {$n>1 && [string first $z -seed]==0}      {set prngseed $z2} \
+    elseif {$n>1 && [string first $z -file]==0}      {set crashfile $z2}  \
+    elseif {$n>1 && [string first $z -tclbody]==0}   {set tclbody $z2}  \
+    elseif {$n>1 && [string first $z -blocksize]==0} {set blocksize "-s $z2" } \
+    elseif {$n>1 && [string first $z -characteristics]==0} {set dc "-c {$z2}" }\
+    elseif {$n>1 && [string first $z -dfltvfs]==0} {set dfltvfs $z2 }\
+    else   { error "Unrecognized option: $z" }
+  }
+
+  if {$crashfile eq ""} {
+    error "Compulsory option -file missing"
+  }
+
+  # $crashfile gets compared to the native filename in
+  # cfSync(), which can be different then what TCL uses by
+  # default, so here we force it to the "nativename" format.
+  set cfile [string map {\\ \\\\} [file nativename [file join [get_pwd] $crashfile]]]
+
+  set f [open crash.tcl w]
+  puts $f "sqlite3_initialize ; sqlite3_shutdown"
+  puts $f "catch { install_malloc_faultsim 1 }"
+  puts $f "sqlite3_crash_enable 1 $dfltvfs"
+  puts $f "sqlite3_crashparams $blocksize $dc $crashdelay $cfile"
+  puts $f "sqlite3_test_control_pending_byte $::sqlite_pending_byte"
+  puts $f "autoinstall_test_functions"
+
+  # This block sets the cache size of the main database to 10
+  # pages. This is done in case the build is configured to omit
+  # "PRAGMA cache_size".
+  if {$opendb!=""} {
+    puts $f $opendb 
+    puts $f {db eval {SELECT * FROM sqlite_master;}}
+    puts $f {set bt [btree_from_db db]}
+    puts $f {btree_set_cache_size $bt 10}
+  }
+
+  if {$prngseed} {
+    set seed [expr {$prngseed%10007+1}]
+    # puts seed=$seed
+    puts $f "db eval {SELECT randomblob($seed)}"
+  }
+
+  if {[string length $tclbody]>0} {
+    puts $f $tclbody
+  }
+  if {[string length $sql]>0} {
+    puts $f "db eval {"
+    puts $f   "$sql"
+    puts $f "}"
+  }
+  close $f
+  set r [catch {
+    exec [info nameofexec] crash.tcl >@stdout 2>@stdout
+  } msg]
+
+  # Windows/ActiveState TCL returns a slightly different
+  # error message.  We map that to the expected message
+  # so that we don't have to change all of the test
+  # cases.
+  if {$::tcl_platform(platform)=="windows"} {
+    if {$msg=="child killed: unknown signal"} {
+      set msg "child process exited abnormally"
+    }
+  }
+  if {$r && [string match {*ERROR: LeakSanitizer*} $msg]} {
+    set msg "child process exited abnormally"
+  }
+
+  lappend r $msg
+}
+
+#   crash_on_write ?-devchar DEVCHAR? CRASHDELAY SQL
+#
+proc crash_on_write {args} {
+
+  set nArg [llength $args]
+  if {$nArg<2 || $nArg%2} {
+    error "bad args: $args"
+  }
+  set zSql [lindex $args end]
+  set nDelay [lindex $args end-1]
+
+  set devchar {}
+  for {set ii 0} {$ii < $nArg-2} {incr ii 2} {
+    set opt [lindex $args $ii]
+    switch -- [lindex $args $ii] {
+      -devchar {
+        set devchar [lindex $args [expr $ii+1]]
+      }
+
+      default { error "unrecognized option: $opt" }
+    }
+  }
+
+  set f [open crash.tcl w]
+  puts $f "sqlite3_crash_on_write $nDelay"
+  puts $f "sqlite3_test_control_pending_byte $::sqlite_pending_byte"
+  puts $f "sqlite3 db test.db -vfs writecrash"
+  puts $f "db eval {$zSql}"
+  puts $f "set {} {}"
+
+  close $f
+  set r [catch {
+    exec [info nameofexec] crash.tcl >@stdout
+  } msg]
+
+  # Windows/ActiveState TCL returns a slightly different
+  # error message.  We map that to the expected message
+  # so that we don't have to change all of the test
+  # cases.
+  if {$::tcl_platform(platform)=="windows"} {
+    if {$msg=="child killed: unknown signal"} {
+      set msg "child process exited abnormally"
+    }
+  }
+
+  lappend r $msg
+}
+
+proc run_ioerr_prep {} {
+  set ::sqlite_io_error_pending 0
+  catch {db close}
+  catch {db2 close}
+  catch {forcedelete test.db}
+  catch {forcedelete test.db-journal}
+  catch {forcedelete test2.db}
+  catch {forcedelete test2.db-journal}
+  set ::DB [sqlite3 db test.db; sqlite3_connection_pointer db]
+  sqlite3_extended_result_codes $::DB $::ioerropts(-erc)
+  if {[info exists ::ioerropts(-tclprep)]} {
+    eval $::ioerropts(-tclprep)
+  }
+  if {[info exists ::ioerropts(-sqlprep)]} {
+    execsql $::ioerropts(-sqlprep)
+  }
+  expr 0
+}
+
+# Usage: do_ioerr_test <test number> <options...>
+#
+# This proc is used to implement test cases that check that IO errors
+# are correctly handled. The first argument, <test number>, is an integer
+# used to name the tests executed by this proc. Options are as follows:
+#
+#     -tclprep          TCL script to run to prepare test.
+#     -sqlprep          SQL script to run to prepare test.
+#     -tclbody          TCL script to run with IO error simulation.
+#     -sqlbody          TCL script to run with IO error simulation.
+#     -exclude          List of 'N' values not to test.
+#     -erc              Use extended result codes
+#     -persist          Make simulated I/O errors persistent
+#     -start            Value of 'N' to begin with (default 1)
+#
+#     -cksum            Boolean. If true, test that the database does
+#                       not change during the execution of the test case.
+#
+proc do_ioerr_test {testname args} {
+
+  set ::ioerropts(-start) 1
+  set ::ioerropts(-cksum) 0
+  set ::ioerropts(-erc) 0
+  set ::ioerropts(-count) 100000000
+  set ::ioerropts(-persist) 1
+  set ::ioerropts(-ckrefcount) 0
+  set ::ioerropts(-restoreprng) 1
+  array set ::ioerropts $args
+
+  # TEMPORARY: For 3.5.9, disable testing of extended result codes. There are
+  # a couple of obscure IO errors that do not return them.
+  set ::ioerropts(-erc) 0
+
+  # Create a single TCL script from the TCL and SQL specified
+  # as the body of the test.
+  set ::ioerrorbody {}
+  if {[info exists ::ioerropts(-tclbody)]} {
+    append ::ioerrorbody "$::ioerropts(-tclbody)\n"
+  }
+  if {[info exists ::ioerropts(-sqlbody)]} {
+    append ::ioerrorbody "db eval {$::ioerropts(-sqlbody)}"
+  }
+
+  save_prng_state
+  if {$::ioerropts(-cksum)} {
+    run_ioerr_prep
+    eval $::ioerrorbody
+    set ::goodcksum [cksum]
+  }
+
+  set ::go 1
+  #reset_prng_state
+  for {set n $::ioerropts(-start)} {$::go} {incr n} {
+    set ::TN $n
+    incr ::ioerropts(-count) -1
+    if {$::ioerropts(-count)<0} break
+
+    # Skip this IO error if it was specified with the "-exclude" option.
+    if {[info exists ::ioerropts(-exclude)]} {
+      if {[lsearch $::ioerropts(-exclude) $n]!=-1} continue
+    }
+    if {$::ioerropts(-restoreprng)} {
+      restore_prng_state
+    }
+
+    # Delete the files test.db and test2.db, then execute the TCL and
+    # SQL (in that order) to prepare for the test case.
+    do_test $testname.$n.1 {
+      run_ioerr_prep
+    } {0}
+
+    # Read the 'checksum' of the database.
+    if {$::ioerropts(-cksum)} {
+      set ::checksum [cksum]
+    }
+
+    # Set the Nth IO error to fail.
+    do_test $testname.$n.2 [subst {
+      set ::sqlite_io_error_persist $::ioerropts(-persist)
+      set ::sqlite_io_error_pending $n
+    }] $n
+
+    # Execute the TCL script created for the body of this test. If
+    # at least N IO operations performed by SQLite as a result of
+    # the script, the Nth will fail.
+    do_test $testname.$n.3 {
+      set ::sqlite_io_error_hit 0
+      set ::sqlite_io_error_hardhit 0
+      set r [catch $::ioerrorbody msg]
+      set ::errseen $r
+      if {[info commands db]!=""} {
+        set rc [sqlite3_errcode db]
+        if {$::ioerropts(-erc)} {
+          # If we are in extended result code mode, make sure all of the
+          # IOERRs we get back really do have their extended code values.
+          # If an extended result code is returned, the sqlite3_errcode
+          # TCLcommand will return a string of the form:  SQLITE_IOERR+nnnn
+          # where nnnn is a number
+          if {[regexp {^SQLITE_IOERR} $rc] && ![regexp {IOERR\+\d} $rc]} {
+            return $rc
+          }
+        } else {
+          # If we are not in extended result code mode, make sure no
+          # extended error codes are returned.
+          if {[regexp {\+\d} $rc]} {
+            return $rc
+          }
+        }
+      }
+      # The test repeats as long as $::go is non-zero.  $::go starts out
+      # as 1.  When a test runs to completion without hitting an I/O
+      # error, that means there is no point in continuing with this test
+      # case so set $::go to zero.
+      #
+      if {$::sqlite_io_error_pending>0} {
+        set ::go 0
+        set q 0
+        set ::sqlite_io_error_pending 0
+      } else {
+        set q 1
+      }
+
+      set s [expr $::sqlite_io_error_hit==0]
+      if {$::sqlite_io_error_hit>$::sqlite_io_error_hardhit && $r==0} {
+        set r 1
+      }
+      set ::sqlite_io_error_hit 0
+
+      # One of two things must have happened. either
+      #   1.  We never hit the IO error and the SQL returned OK
+      #   2.  An IO error was hit and the SQL failed
+      #
+      #puts "s=$s r=$r q=$q"
+      expr { ($s && !$r && !$q) || (!$s && $r && $q) }
+    } {1}
+
+    set ::sqlite_io_error_hit 0
+    set ::sqlite_io_error_pending 0
+
+    # Check that no page references were leaked. There should be
+    # a single reference if there is still an active transaction,
+    # or zero otherwise.
+    #
+    # UPDATE: If the IO error occurs after a 'BEGIN' but before any
+    # locks are established on database files (i.e. if the error
+    # occurs while attempting to detect a hot-journal file), then
+    # there may 0 page references and an active transaction according
+    # to [sqlite3_get_autocommit].
+    #
+    if {$::go && $::sqlite_io_error_hardhit && $::ioerropts(-ckrefcount)} {
+      do_test $testname.$n.4 {
+        set bt [btree_from_db db]
+        db_enter db
+        array set stats [btree_pager_stats $bt]
+        db_leave db
+        set nRef $stats(ref)
+        expr {$nRef == 0 || ([sqlite3_get_autocommit db]==0 && $nRef == 1)}
+      } {1}
+    }
+
+    # If there is an open database handle and no open transaction,
+    # and the pager is not running in exclusive-locking mode,
+    # check that the pager is in "unlocked" state. Theoretically,
+    # if a call to xUnlock() failed due to an IO error the underlying
+    # file may still be locked.
+    #
+    ifcapable pragma {
+      if { [info commands db] ne ""
+        && $::ioerropts(-ckrefcount)
+        && [db one {pragma locking_mode}] eq "normal"
+        && [sqlite3_get_autocommit db]
+      } {
+        do_test $testname.$n.5 {
+          set bt [btree_from_db db]
+          db_enter db
+          array set stats [btree_pager_stats $bt]
+          db_leave db
+          set stats(state)
+        } 0
+      }
+    }
+
+    # If an IO error occurred, then the checksum of the database should
+    # be the same as before the script that caused the IO error was run.
+    #
+    if {$::go && $::sqlite_io_error_hardhit && $::ioerropts(-cksum)} {
+      do_test $testname.$n.6 {
+        catch {db close}
+        catch {db2 close}
+        set ::DB [sqlite3 db test.db; sqlite3_connection_pointer db]
+        set nowcksum [cksum]
+        set res [expr {$nowcksum==$::checksum || $nowcksum==$::goodcksum}]
+        if {$res==0} {
+          output2 "now=$nowcksum"
+          output2 "the=$::checksum"
+          output2 "fwd=$::goodcksum"
+        }
+        set res
+      } 1
+    }
+
+    set ::sqlite_io_error_hardhit 0
+    set ::sqlite_io_error_pending 0
+    if {[info exists ::ioerropts(-cleanup)]} {
+      catch $::ioerropts(-cleanup)
+    }
+  }
+  set ::sqlite_io_error_pending 0
+  set ::sqlite_io_error_persist 0
+  unset ::ioerropts
+}
+
+# Return a checksum based on the contents of the main database associated
+# with connection $db
+#
+proc cksum {{db db}} {
+  set txt [$db eval {
+      SELECT name, type, sql FROM sqlite_master order by name
+  }]\n
+  foreach tbl [$db eval {
+      SELECT name FROM sqlite_master WHERE type='table' order by name
+  }] {
+    append txt [$db eval "SELECT * FROM $tbl"]\n
+  }
+  foreach prag {default_synchronous default_cache_size} {
+    append txt $prag-[$db eval "PRAGMA $prag"]\n
+  }
+  set cksum [string length $txt]-[md5 $txt]
+  # puts $cksum-[file size test.db]
+  return $cksum
+}
+
+# Generate a checksum based on the contents of the main and temp tables
+# database $db. If the checksum of two databases is the same, and the
+# integrity-check passes for both, the two databases are identical.
+#
+proc allcksum {{db db}} {
+  set ret [list]
+  ifcapable tempdb {
+    set sql {
+      SELECT name FROM sqlite_master WHERE type = 'table' UNION
+      SELECT name FROM sqlite_temp_master WHERE type = 'table' UNION
+      SELECT 'sqlite_master' UNION
+      SELECT 'sqlite_temp_master' ORDER BY 1
+    }
+  } else {
+    set sql {
+      SELECT name FROM sqlite_master WHERE type = 'table' UNION
+      SELECT 'sqlite_master' ORDER BY 1
+    }
+  }
+  set tbllist [$db eval $sql]
+  set txt {}
+  foreach tbl $tbllist {
+    append txt [$db eval "SELECT * FROM $tbl"]
+  }
+  foreach prag {default_cache_size} {
+    append txt $prag-[$db eval "PRAGMA $prag"]\n
+  }
+  # puts txt=$txt
+  return [md5 $txt]
+}
+
+# Generate a checksum based on the contents of a single database with
+# a database connection.  The name of the database is $dbname.
+# Examples of $dbname are "temp" or "main".
+#
+proc dbcksum {db dbname} {
+  if {$dbname=="temp"} {
+    set master sqlite_temp_master
+  } else {
+    set master $dbname.sqlite_master
+  }
+  set alltab [$db eval "SELECT name FROM $master WHERE type='table'"]
+  set txt [$db eval "SELECT * FROM $master"]\n
+  foreach tab $alltab {
+    append txt [$db eval "SELECT * FROM $dbname.$tab"]\n
+  }
+  return [md5 $txt]
+}
+
+proc memdebug_log_sql {filename} {
+
+  set data [sqlite3_memdebug_log dump]
+  set nFrame [expr [llength [lindex $data 0]]-2]
+  if {$nFrame < 0} { return "" }
+
+  set database temp
+
+  set tbl "CREATE TABLE ${database}.malloc(zTest, nCall, nByte, lStack);"
+
+  set sql ""
+  foreach e $data {
+    set nCall [lindex $e 0]
+    set nByte [lindex $e 1]
+    set lStack [lrange $e 2 end]
+    append sql "INSERT INTO ${database}.malloc VALUES"
+    append sql "('test', $nCall, $nByte, '$lStack');\n"
+    foreach f $lStack {
+      set frames($f) 1
+    }
+  }
+
+  set tbl2 "CREATE TABLE ${database}.frame(frame INTEGER PRIMARY KEY, line);\n"
+  set tbl3 "CREATE TABLE ${database}.file(name PRIMARY KEY, content);\n"
+
+  set pid [pid]
+
+  foreach f [array names frames] {
+    set addr [format %x $f]
+    set cmd "eu-addr2line --pid=$pid $addr"
+    set line [eval exec $cmd]
+    append sql "INSERT INTO ${database}.frame VALUES($f, '$line');\n"
+
+    set file [lindex [split $line :] 0]
+    set files($file) 1
+  }
+
+  foreach f [array names files] {
+    set contents ""
+    catch {
+      set fd [open $f]
+      set contents [read $fd]
+      close $fd
+    }
+    set contents [string map {' ''} $contents]
+    append sql "INSERT INTO ${database}.file VALUES('$f', '$contents');\n"
+  }
+
+  set escaped "BEGIN; ${tbl}${tbl2}${tbl3}${sql} ; COMMIT;"
+  set escaped [string map [list "{" "\\{" "}" "\\}" "\\" "\\\\"] $escaped] 
+
+  set fd [open $filename w]
+  puts $fd "set BUILTIN {"
+  puts $fd $escaped
+  puts $fd "}"
+  puts $fd {set BUILTIN [string map [list "\\{" "{" "\\}" "}" "\\\\" "\\"] $BUILTIN]}
+  set mtv [open $::testdir/malloctraceviewer.tcl]
+  set txt [read $mtv]
+  close $mtv
+  puts $fd $txt
+  close $fd
+}
+
+# Drop all tables in database [db]
+proc drop_all_tables {{db db}} {
+  ifcapable trigger&&foreignkey {
+    set pk [$db one "PRAGMA foreign_keys"]
+    $db eval "PRAGMA foreign_keys = OFF"
+  }
+  foreach {idx name file} [db eval {PRAGMA database_list}] {
+    if {$idx==1} {
+      set master sqlite_temp_master
+    } else {
+      set master $name.sqlite_master
+    }
+    foreach {t type} [$db eval "
+      SELECT name, type FROM $master
+      WHERE type IN('table', 'view') AND name NOT LIKE 'sqliteX_%' ESCAPE 'X'
+    "] {
+      $db eval "DROP $type \"$t\""
+    }
+  }
+  ifcapable trigger&&foreignkey {
+    $db eval "PRAGMA foreign_keys = $pk"
+  }
+}
+
+# Drop all auxiliary indexes from the main database opened by handle [db].
+#
+proc drop_all_indexes {{db db}} {
+  set L [$db eval {
+    SELECT name FROM sqlite_master WHERE type='index' AND sql LIKE 'create%'
+  }]
+  foreach idx $L { $db eval "DROP INDEX $idx" }
+}
+
+
+#-------------------------------------------------------------------------
+# If a test script is executed with global variable $::G(perm:name) set to
+# "wal", then the tests are run in WAL mode. Otherwise, they should be run
+# in rollback mode. The following Tcl procs are used to make this less
+# intrusive:
+#
+#   wal_set_journal_mode ?DB?
+#
+#     If running a WAL test, execute "PRAGMA journal_mode = wal" using
+#     connection handle DB. Otherwise, this command is a no-op.
+#
+#   wal_check_journal_mode TESTNAME ?DB?
+#
+#     If running a WAL test, execute a tests case that fails if the main
+#     database for connection handle DB is not currently a WAL database.
+#     Otherwise (if not running a WAL permutation) this is a no-op.
+#
+#   wal_is_wal_mode
+#
+#     Returns true if this test should be run in WAL mode. False otherwise.
+#
+proc wal_is_wal_mode {} {
+  expr {[permutation] eq "wal"}
+}
+proc wal_set_journal_mode {{db db}} {
+  if { [wal_is_wal_mode] } {
+    $db eval "PRAGMA journal_mode = WAL"
+  }
+}
+proc wal_check_journal_mode {testname {db db}} {
+  if { [wal_is_wal_mode] } {
+    $db eval { SELECT * FROM sqlite_master }
+    do_test $testname [list $db eval "PRAGMA main.journal_mode"] {wal}
+  }
+}
+
+proc wal_is_capable {} {
+  ifcapable !wal { return 0 }
+  if {[permutation]=="journaltest"} { return 0 }
+  return 1
+}
+
+proc permutation {} {
+  set perm ""
+  catch {set perm $::G(perm:name)}
+  set perm
+}
+proc presql {} {
+  set presql ""
+  catch {set presql $::G(perm:presql)}
+  set presql
+}
+
+proc isquick {} {
+  set ret 0
+  catch {set ret $::G(isquick)}
+  set ret
+}
+
+#-------------------------------------------------------------------------
+#
+proc slave_test_script {script} {
+
+  # Create the interpreter used to run the test script.
+  interp create tinterp
+
+  # Populate some global variables that tester.tcl expects to see.
+  foreach {var value} [list              \
+    ::argv0 $::argv0                     \
+    ::argv  {}                           \
+    ::SLAVE 1                            \
+  ] {
+    interp eval tinterp [list set $var $value]
+  }
+
+  # If output is being copied into a file, share the file-descriptor with
+  # the interpreter.
+  if {[info exists ::G(output_fd)]} {
+    interp share {} $::G(output_fd) tinterp
+  }
+
+  # The alias used to access the global test counters.
+  tinterp alias set_test_counter set_test_counter
+
+  # Set up the ::cmdlinearg array in the slave.
+  interp eval tinterp [list array set ::cmdlinearg [array get ::cmdlinearg]]
+
+  # Set up the ::G array in the slave.
+  interp eval tinterp [list array set ::G [array get ::G]]
+
+  # Load the various test interfaces implemented in C.
+  load_testfixture_extensions tinterp
+
+  # Run the test script.
+  interp eval tinterp $script
+
+  # Check if the interpreter call [run_thread_tests]
+  if { [interp eval tinterp {info exists ::run_thread_tests_called}] } {
+    set ::run_thread_tests_called 1
+  }
+
+  # Delete the interpreter used to run the test script.
+  interp delete tinterp
+}
+
+proc slave_test_file {zFile} {
+  set tail [file tail $zFile]
+
+  if {[info exists ::G(start:permutation)]} {
+    if {[permutation] != $::G(start:permutation)} return
+    unset ::G(start:permutation)
+  }
+  if {[info exists ::G(start:file)]} {
+    if {$tail != $::G(start:file) && $tail!="$::G(start:file).test"} return
+    unset ::G(start:file)
+  }
+
+  # Remember the value of the shared-cache setting. So that it is possible
+  # to check afterwards that it was not modified by the test script.
+  #
+  ifcapable shared_cache { set scs [sqlite3_enable_shared_cache] }
+
+  # Run the test script in a slave interpreter.
+  #
+  unset -nocomplain ::run_thread_tests_called
+  reset_prng_state
+  set ::sqlite_open_file_count 0
+  set time [time { slave_test_script [list source $zFile] }]
+  set ms [expr [lindex $time 0] / 1000]
+
+  # Test that all files opened by the test script were closed. Omit this
+  # if the test script has "thread" in its name. The open file counter
+  # is not thread-safe.
+  #
+  if {[info exists ::run_thread_tests_called]==0} {
+    do_test ${tail}-closeallfiles { expr {$::sqlite_open_file_count>0} } {0}
+  }
+  set ::sqlite_open_file_count 0
+
+  # Test that the global "shared-cache" setting was not altered by
+  # the test script.
+  #
+  ifcapable shared_cache {
+    set res [expr {[sqlite3_enable_shared_cache] == $scs}]
+    do_test ${tail}-sharedcachesetting [list set {} $res] 1
+  }
+
+  # Add some info to the output.
+  #
+  output2 "Time: $tail $ms ms"
+  show_memstats
+}
+
+# Open a new connection on database test.db and execute the SQL script
+# supplied as an argument. Before returning, close the new conection and
+# restore the 4 byte fields starting at header offsets 28, 92 and 96
+# to the values they held before the SQL was executed. This simulates
+# a write by a pre-3.7.0 client.
+#
+proc sql36231 {sql} {
+  set B [hexio_read test.db 92 8]
+  set A [hexio_read test.db 28 4]
+  sqlite3 db36231 test.db
+  catch { db36231 func a_string a_string }
+  execsql $sql db36231
+  db36231 close
+  hexio_write test.db 28 $A
+  hexio_write test.db 92 $B
+  return ""
+}
+
+proc db_save {} {
+  foreach f [glob -nocomplain sv_test.db*] { forcedelete $f }
+  foreach f [glob -nocomplain test.db*] {
+    set f2 "sv_$f"
+    forcecopy $f $f2
+  }
+}
+proc db_save_and_close {} {
+  db_save
+  catch { db close }
+  return ""
+}
+proc db_restore {} {
+  foreach f [glob -nocomplain test.db*] { forcedelete $f }
+  foreach f2 [glob -nocomplain sv_test.db*] {
+    set f [string range $f2 3 end]
+    forcecopy $f2 $f
+  }
+}
+proc db_restore_and_reopen {{dbfile test.db}} {
+  catch { db close }
+  db_restore
+  sqlite3 db $dbfile
+}
+proc db_delete_and_reopen {{file test.db}} {
+  catch { db close }
+  foreach f [glob -nocomplain test.db*] { forcedelete $f }
+  sqlite3 db $file
+}
+
+# Close any connections named [db], [db2] or [db3]. Then use sqlite3_config
+# to configure the size of the PAGECACHE allocation using the parameters
+# provided to this command. Save the old PAGECACHE parameters in a global 
+# variable so that [test_restore_config_pagecache] can restore the previous
+# configuration.
+#
+# Before returning, reopen connection [db] on file test.db.
+#
+proc test_set_config_pagecache {sz nPg} {
+  catch {db close}
+  catch {db2 close}
+  catch {db3 close}
+
+  sqlite3_shutdown
+  set ::old_pagecache_config [sqlite3_config_pagecache $sz $nPg]
+  sqlite3_initialize
+  autoinstall_test_functions
+  reset_db
+}
+
+# Close any connections named [db], [db2] or [db3]. Then use sqlite3_config
+# to configure the size of the PAGECACHE allocation to the size saved in
+# the global variable by an earlier call to [test_set_config_pagecache].
+#
+# Before returning, reopen connection [db] on file test.db.
+#
+proc test_restore_config_pagecache {} {
+  catch {db close}
+  catch {db2 close}
+  catch {db3 close}
+
+  sqlite3_shutdown
+  if {[info exists ::old_pagecache_config]} {
+    eval sqlite3_config_pagecache $::old_pagecache_config
+    unset ::old_pagecache_config 
+  }
+  sqlite3_initialize
+  autoinstall_test_functions
+  sqlite3 db test.db
+}
+
+proc test_binary_name {nm} {
+  if {$::tcl_platform(platform)=="windows"} {
+    set ret "$nm.exe"
+  } else {
+    set ret $nm
+  }
+  file normalize [file join $::cmdlinearg(TESTFIXTURE_HOME) $ret]
+}
+
+proc test_find_binary {nm} {
+  set ret [test_binary_name $nm]
+  if {![file executable $ret]} {
+    finish_test
+    return ""
+  }
+  return $ret
+}
+
+# Find the name of the 'shell' executable (e.g. "sqlite3.exe") to use for
+# the tests in shell*.test. If no such executable can be found, invoke
+# [finish_test ; return] in the callers context.
+#
+proc test_find_cli {} {
+  set prog [test_find_binary sqlite3]
+  if {$prog==""} { return -code return }
+  return $prog
+}
+
+# Find invocation of the 'shell' executable (e.g. "sqlite3.exe") to use
+# for the tests in shell*.test with optional valgrind prefix when the
+# environment variable SQLITE_CLI_VALGRIND_OPT is set. The set value
+# operates as follows:
+#   empty or 0 => no valgrind prefix;
+#   1 => valgrind options for memory leak check;
+#   other => use value as valgrind options.
+# If shell not found, invoke [finish_test ; return] in callers context.
+#
+proc test_cli_invocation {} {
+  set prog [test_find_binary sqlite3]
+  if {$prog==""} { return -code return }
+  set vgrun [expr {[permutation]=="valgrind"}]
+  if {$vgrun || [info exists ::env(SQLITE_CLI_VALGRIND_OPT)]} {
+    if {$vgrun} {
+      set vgo "--quiet"
+    } else {
+      set vgo $::env(SQLITE_CLI_VALGRIND_OPT)
+    }
+    if {$vgo == 0 || $vgo eq ""} {
+      return $prog
+    } elseif {$vgo == 1} {
+      return "valgrind --quiet --leak-check=yes $prog"
+    } else {
+      return "valgrind $vgo $prog"
+    }
+  } else {
+    return $prog
+  }
+}
+
+# Find the name of the 'sqldiff' executable (e.g. "sqlite3.exe") to use for
+# the tests in sqldiff tests. If no such executable can be found, invoke
+# [finish_test ; return] in the callers context.
+#
+proc test_find_sqldiff {} {
+  set prog [test_find_binary sqldiff]
+  if {$prog==""} { return -code return }
+  return $prog
+}
+
+# Call sqlite3_expanded_sql() on all statements associated with database
+# connection $db. This sometimes finds use-after-free bugs if run with
+# valgrind or address-sanitizer.
+proc expand_all_sql {db} {
+  set stmt ""
+  while {[set stmt [sqlite3_next_stmt $db $stmt]]!=""} {
+    sqlite3_expanded_sql $stmt
+  }
+}
+
+
+# If the library is compiled with the SQLITE_DEFAULT_AUTOVACUUM macro set
+# to non-zero, then set the global variable $AUTOVACUUM to 1.
+set AUTOVACUUM $sqlite_options(default_autovacuum)
+
+# Make sure the FTS enhanced query syntax is disabled.
+set sqlite_fts3_enable_parentheses 0
+
+# During testing, assume that all database files are well-formed.  The
+# few test cases that deliberately corrupt database files should rescind 
+# this setting by invoking "database_can_be_corrupt"
+#
+database_never_corrupt
+extra_schema_checks 1
+
+source $testdir/thread_common.tcl
+source $testdir/malloc_common.tcl
+
+set tester_tcl_has_run 1
diff --git a/test/testrunner.tcl b/test/testrunner.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..d365092e05c8849cae34ed6d7ea8a62eb33d1777
--- /dev/null
+++ b/test/testrunner.tcl
@@ -0,0 +1,1672 @@
+#!/bin/sh
+# Script to runs tests for SQLite.  Run with option "help" for more info. \
+exec tclsh "$0" "$@"
+
+set dir [pwd]
+set testdir [file normalize [file dirname $argv0]]
+set saved $argv
+set argv [list]
+source [file join $testdir testrunner_data.tcl]
+source [file join $testdir permutations.test]
+set argv $saved
+cd $dir
+
+# This script requires an interpreter that supports [package require sqlite3]
+# to run. If this is not such an intepreter, see if there is a [testfixture]
+# in the current directory. If so, run the command using it. If not, 
+# recommend that the user build one.
+#
+proc find_interpreter {} {
+  global dir
+  set interpreter [file tail [info nameofexec]]
+  set rc [catch { package require sqlite3 }]
+  if {$rc} {
+    if {[file readable pkgIndex.tcl] && [catch {source pkgIndex.tcl}]==0} {
+      set rc [catch { package require sqlite3 }]
+    }
+  }
+  if {$rc} {
+    if { [string match -nocase testfixture* $interpreter]==0
+      && [file executable ./testfixture]
+    } {
+      puts "Failed to find tcl package sqlite3. Restarting with ./testfixture.."
+      set status [catch { 
+          exec ./testfixture [info script] {*}$::argv >@ stdout 
+      } msg]
+      exit $status
+    }
+  }
+  if {$rc} {
+    puts "Cannot find tcl package sqlite3: Trying to build it now..."
+    if {$::tcl_platform(platform)=="windows"} {
+      set bat [open make-tcl-extension.bat w]
+      puts $bat "nmake /f Makefile.msc tclextension"
+      close $bat
+      catch {exec -ignorestderr -- make-tcl-extension.bat}
+    } else {
+      catch {exec make tclextension}
+    }
+    if {[file readable pkgIndex.tcl] && [catch {source pkgIndex.tcl}]==0} {
+      set rc [catch { package require sqlite3 }]
+    }
+    if {$rc==0} {
+      puts "The SQLite tcl extension was successfully built and loaded."
+      puts "Run \"make tclextension-install\" to avoid having to rebuild\
+            it in the future."
+    } else {
+      puts "Unable to build the SQLite tcl extension"
+    }
+  }
+  if {$rc} {
+    puts stderr "Cannot find a working instance of the SQLite tcl extension."
+    puts stderr "Run \"make tclextension\" or \"make testfixture\" and\
+                 try again..."
+    exit 1
+  }
+}
+find_interpreter
+
+# Usually this script is run by [testfixture]. But it can also be run
+# by a regular [tclsh]. For these cases, emulate the [clock_milliseconds] 
+# command.
+if {[info commands clock_milliseconds]==""} {
+  proc clock_milliseconds {} {
+    clock milliseconds
+  }
+}
+
+#-------------------------------------------------------------------------
+# Usage:
+#
+proc usage {} {
+  set a0 [file tail $::argv0]
+
+  puts stderr [string trim [subst -nocommands {
+Usage: 
+    $a0 ?SWITCHES? ?PERMUTATION? ?PATTERNS?
+    $a0 PERMUTATION FILE
+    $a0 errors ?-v|--verbose? ?-s|--summary? ?PATTERN?
+    $a0 help
+    $a0 joblist ?PATTERN?
+    $a0 njob ?NJOB?
+    $a0 script ?-msvc? CONFIG
+    $a0 status ?-d SECS? ?--cls?
+    $a0 halt
+
+  where SWITCHES are:
+    --buildonly              Build test exes but do not run tests
+    --config CONFIGS         Only use configs on comma-separate list CONFIGS
+    --dryrun                 Write what would have happened to testrunner.log
+    --explain                Write summary to stdout
+    --jobs NUM               Run tests using NUM separate processes
+    --omit CONFIGS           Omit configs on comma-separated list CONFIGS
+    --status                 Show the full "status" report while running
+    --stop-on-coredump       Stop running if any test segfaults
+    --stop-on-error          Stop running after any reported error
+    --zipvfs ZIPVFSDIR       ZIPVFS source directory
+
+Special values for PERMUTATION that work with plain tclsh:
+
+    list      - show all allowed PERMUTATION arguments.
+    mdevtest  - tests recommended prior to normal development check-ins.
+    release   - full release test with various builds.
+    sdevtest  - like mdevtest but using ASAN and UBSAN.
+
+Other PERMUTATION arguments must be run using testfixture, not tclsh:
+
+    all       - all tcl test scripts, plus a subset of test scripts rerun
+                with various permutations.
+    full      - all tcl test scripts.
+    veryquick - a fast subset of the tcl test scripts. This is the default.
+
+If no PATTERN arguments are present, all tests specified by the PERMUTATION
+are run. Otherwise, each pattern is interpreted as a glob pattern. Only
+those tcl tests for which the final component of the filename matches at
+least one specified pattern are run.  The glob wildcard '*' is prepended
+to the pattern if it does not start with '^' and appended to every
+pattern that does not end with '$'.
+
+If no PATTERN arguments are present, then various fuzztest, threadtest
+and other tests are run as part of the "release" permutation. These are
+omitted if any PATTERN arguments are specified on the command line.
+
+If a PERMUTATION is specified and is followed by the path to a Tcl script
+instead of a list of patterns, then that single Tcl test script is run
+with the specified permutation.
+
+The "status" and "njob" commands are designed to be run from the same
+directory as a running testrunner.tcl script that is running tests. The
+"status" command prints a report describing the current state and progress 
+of the tests.  Use the "-d N" option to have the status display clear the
+screen and repeat every N seconds.  The "njob" command may be used to query
+or modify the number of sub-processes the test script uses to run tests.
+
+The "script" command outputs the script used to build a configuration.
+Add the "-msvc" option for a Windows-compatible script. For a list of
+available configurations enter "$a0 script help".
+
+The "errors" commands shows the output of tests that failed in the
+most recent run.  Complete output is shown if the -v or --verbose options
+are used.  Otherwise, an attempt is made to minimize the output to show
+only the parts that contain the error messages.  The --summary option just
+shows the jobs that failed.  If PATTERN are provided, the error information
+is only provided for jobs that match PATTERN.
+
+Full documentation here: https://sqlite.org/src/doc/trunk/doc/testrunner.md
+  }]]
+
+  exit 1
+}
+#-------------------------------------------------------------------------
+
+#-------------------------------------------------------------------------
+# Try to estimate a the number of processes to use.
+#
+# Command [guess_number_of_cores] attempts to glean the number of logical
+# cores. Command [default_njob] returns the default value for the --jobs
+# switch.
+#
+proc guess_number_of_cores {} {
+  if {[catch {number_of_cores} ret]} {
+    set ret 4
+  
+    if {$::tcl_platform(platform)=="windows"} {
+      catch { set ret $::env(NUMBER_OF_PROCESSORS) }
+    } else {
+      if {$::tcl_platform(os)=="Darwin"} {
+        set cmd "sysctl -n hw.logicalcpu"
+      } else {
+        set cmd "nproc"
+      }
+      catch {
+        set fd [open "|$cmd" r]
+        set ret [gets $fd]
+        close $fd
+        set ret [expr $ret]
+      }
+    }
+  }
+  return $ret
+}
+
+proc default_njob {} {
+  global env
+  if {[info exists env(NJOB)] && $env(NJOB)>=1} {
+    return $env(NJOB)
+  }
+  set nCore [guess_number_of_cores]
+  if {$nCore<=2} {
+    set nHelper 1
+  } else {
+    set nHelper [expr int($nCore*0.5)]
+  }
+  return $nHelper
+}
+#-------------------------------------------------------------------------
+
+#-------------------------------------------------------------------------
+# Setup various default values in the global TRG() array.
+# 
+set TRG(dbname) [file normalize testrunner.db]
+set TRG(logname) [file normalize testrunner.log]
+set TRG(build.logname) [file normalize testrunner_build.log]
+set TRG(info_script) [file normalize [info script]]
+set TRG(timeout) 10000              ;# Default busy-timeout for testrunner.db 
+set TRG(nJob)    [default_njob]     ;# Default number of helper processes
+set TRG(patternlist) [list]
+set TRG(cmdline) $argv
+set TRG(reporttime) 2000
+set TRG(fuzztest) 0                 ;# is the fuzztest option present.
+set TRG(zipvfs) ""                  ;# -zipvfs option, if any
+set TRG(buildonly) 0                ;# True if --buildonly option 
+set TRG(config) {}                  ;# Only build the named configurations
+set TRG(omitconfig) {}              ;# Do not build these configurations
+set TRG(dryrun) 0                   ;# True if --dryrun option 
+set TRG(explain) 0                  ;# True for the --explain option
+set TRG(stopOnError) 0              ;# Stop running at first failure
+set TRG(stopOnCore) 0               ;# Stop on a core-dump
+set TRG(fullstatus) 0               ;# Full "status" report while running
+
+switch -nocase -glob -- $tcl_platform(os) {
+  *darwin* {
+    set TRG(platform)    osx
+    set TRG(make)        make.sh
+    set TRG(makecmd)     "bash make.sh"
+    set TRG(testfixture) testfixture
+    set TRG(shell)       sqlite3
+    set TRG(run)         run.sh
+    set TRG(runcmd)      "bash run.sh"
+  }
+  *linux* {
+    set TRG(platform)    linux
+    set TRG(make)        make.sh
+    set TRG(makecmd)     "bash make.sh"
+    set TRG(testfixture) testfixture
+    set TRG(shell)       sqlite3
+    set TRG(run)         run.sh
+    set TRG(runcmd)      "bash run.sh"
+  }
+  *openbsd* {
+    set TRG(platform)    linux
+    set TRG(make)        make.sh
+    set TRG(makecmd)     "sh make.sh"
+    set TRG(testfixture) testfixture
+    set TRG(shell)       sqlite3
+    set TRG(run)         run.sh
+    set TRG(runcmd)      "sh run.sh"
+  }
+  *win* {
+    set TRG(platform)    win
+    set TRG(make)        make.bat
+    set TRG(makecmd)     "call make.bat"
+    set TRG(testfixture) testfixture.exe
+    set TRG(shell)       sqlite3.exe
+    set TRG(run)         run.bat
+    set TRG(runcmd)      "run.bat"
+  }
+  default {
+    error "cannot determine platform!"
+  }
+} 
+#-------------------------------------------------------------------------
+
+#-------------------------------------------------------------------------
+# The database schema used by the testrunner.db database.
+#
+set TRG(schema) {
+  DROP TABLE IF EXISTS jobs;
+  DROP TABLE IF EXISTS config;
+
+  /*
+  ** This table contains one row for each job that testrunner.tcl must run
+  ** before the entire test run is finished.
+  **
+  ** jobid:
+  **   Unique identifier for each job. Must be a +ve non-zero number.
+  **
+  ** displaytype:
+  **   3 or 4 letter mnemonic for the class of tests this belongs to e.g.
+  **   "fuzz", "tcl", "make" etc.
+  **
+  ** displayname:
+  **   Name/description of job. For display purposes.
+  **
+  ** build:
+  **   If the job requires a make.bat/make.sh make wrapper (i.e. to build
+  **   something), the name of the build configuration it uses. See 
+  **   testrunner_data.tcl for a list of build configs. e.g. "Win32-MemDebug".
+  **
+  ** dirname:
+  **   If the job should use a well-known directory name for its 
+  **   sub-directory instead of an anonymous "testdir[1234...]" sub-dir
+  **   that is deleted after the job is finished.
+  **
+  ** cmd:
+  **   Bash or batch script to run the job.
+  **
+  ** depid:
+  **   The jobid value of a job that this job depends on. This job may not
+  **   be run before its depid job has finished successfully.
+  **
+  ** priority:
+  **   Higher values run first. Sometimes.
+  */
+  CREATE TABLE jobs(
+    /* Fields populated when db is initialized */
+    jobid INTEGER PRIMARY KEY,          -- id to identify job
+    displaytype TEXT NOT NULL,          -- Type of test (for one line report)
+    displayname TEXT NOT NULL,          -- Human readable job name
+    build TEXT NOT NULL DEFAULT '',     -- make.sh/make.bat file request, if any
+    dirname TEXT NOT NULL DEFAULT '',   -- directory name, if required
+    cmd TEXT NOT NULL,                  -- shell command to run
+    depid INTEGER,                      -- identifier of dependency (or '')
+    priority INTEGER NOT NULL,          -- higher priority jobs may run earlier
+  
+    /* Fields updated as jobs run */
+    starttime INTEGER,                  -- Start time (milliseconds since 1970)
+    endtime INTEGER,                    -- End time
+    span INTEGER,                       -- Total run-time in milliseconds
+    estwork INTEGER,                    -- Estimated amount of work
+    state TEXT CHECK( state IN ('','ready','running','done','failed','omit','halt') ),
+    ntest INT,                          -- Number of test cases run
+    nerr INT,                           -- Number of errors reported
+    svers TEXT,                         -- Reported SQLite version
+    pltfm TEXT,                         -- Host platform reported
+    output TEXT                         -- test output
+  );
+
+  CREATE TABLE config(
+    name TEXT COLLATE nocase PRIMARY KEY,
+    value 
+  ) WITHOUT ROWID;
+
+  CREATE INDEX i1 ON jobs(state, priority);
+  CREATE INDEX i2 ON jobs(depid);
+}
+#-------------------------------------------------------------------------
+
+# Estimated amount of work required by displaytype, relative to 'tcl'
+#
+set estwork(tcl)    1
+set estwork(fuzz)   11
+set estwork(bld)    56
+set estwork(make)   97
+
+#--------------------------------------------------------------------------
+# Check if this script is being invoked to run a single file. If so,
+# run it.
+#
+if {[llength $argv]==2
+ && ([lindex $argv 0]=="" || [info exists ::testspec([lindex $argv 0])])
+ && [file exists [lindex $argv 1]]
+} {
+  set permutation [lindex $argv 0]
+  set script [file normalize [lindex $argv 1]]
+  set ::argv [list]
+
+  set testdir [file dirname $argv0]
+  source $::testdir/tester.tcl
+
+  if {$permutation=="full"} {
+
+    unset -nocomplain ::G(isquick)
+    reset_db
+
+  } elseif {$permutation!="default" && $permutation!=""} {
+
+    if {[info exists ::testspec($permutation)]==0} {
+      error "no such permutation: $permutation"
+    }
+
+    array set O $::testspec($permutation)
+    set ::G(perm:name)         $permutation
+    set ::G(perm:prefix)       $O(-prefix)
+    set ::G(isquick)           1
+    set ::G(perm:dbconfig)     $O(-dbconfig)
+    set ::G(perm:presql)       $O(-presql)
+
+    rename finish_test helper_finish_test
+    proc finish_test {} "
+      uplevel {
+        $O(-shutdown)
+      }
+      helper_finish_test
+    "
+
+    eval $O(-initialize)
+  }
+
+  reset_db
+  source $script
+  exit
+}
+#--------------------------------------------------------------------------
+
+#--------------------------------------------------------------------------
+# Check if this is the "njob" command:
+#
+if {([llength $argv]==2 || [llength $argv]==1) 
+ && [string compare -nocase njob [lindex $argv 0]]==0
+} {
+  sqlite3 mydb $TRG(dbname)
+  if {[llength $argv]==2} {
+    set param [lindex $argv 1]
+    if {[string is integer $param]==0 || $param<0 || $param>128} {
+      puts stderr "parameter must be an integer between 0 and 128"
+      exit 1
+    }
+
+    mydb eval { REPLACE INTO config VALUES('njob', $param); }
+  }
+  set res [mydb one { SELECT value FROM config WHERE name='njob' }]
+  mydb close
+  puts "$res"
+  exit
+}
+#--------------------------------------------------------------------------
+
+#--------------------------------------------------------------------------
+# Check if this is the "halt" command:
+#
+if {[llength $argv]==1
+ && [string compare -nocase halt [lindex $argv 0]]==0
+} {
+  sqlite3 mydb $TRG(dbname)
+  mydb eval {UPDATE jobs SET state='halt' WHERE state IN ('ready','')}
+  mydb close
+  exit
+}
+#--------------------------------------------------------------------------
+
+#--------------------------------------------------------------------------
+# Check if this is the "help" command:
+#
+if {[string compare -nocase help [lindex $argv 0]]==0} {
+  usage
+}
+#--------------------------------------------------------------------------
+
+#--------------------------------------------------------------------------
+# Check if this is the "script" command:
+#
+if {[string compare -nocase script [lindex $argv 0]]==0} {
+  if {[llength $argv]!=2 && !([llength $argv]==3&&[lindex $argv 1]=="-msvc")} {
+    usage
+  }
+
+  set bMsvc [expr ([llength $argv]==3)]
+  set config [lindex $argv [expr [llength $argv]-1]]
+
+  puts [trd_buildscript $config [file dirname $testdir] $bMsvc]
+  exit
+}
+
+# Compute an elapse time string MM:SS or HH:MM:SS based on the
+# number of milliseconds in the argument.
+#
+proc elapsetime {ms} {
+  if {$ms==""} {set ms 0}
+  set s [expr {int(($ms+500.0)*0.001)}]
+  set hr [expr {$s/3600}]
+  set mn [expr {($s/60)%60}]
+  set sc [expr {$s%60}]
+  if {$hr>0} {
+    return [format %02d:%02d:%02d $hr $mn $sc]
+  } else {
+    return [format %02d:%02d $mn $sc]
+  }
+}
+
+# Helper routine for show_status
+#
+proc display_job {jobdict {tm ""}} {
+  array set job $jobdict
+  if {[string length $job(displayname)]>65} {
+    set dfname [format %.65s... $job(displayname)]
+  } else {
+    set dfname [format %-68s $job(displayname)]
+  }
+  set dtm ""
+  if {$tm!=""} {
+    set dtm [expr {$tm-$job(starttime)}]
+    set dtm [format %8s [elapsetime $dtm]]
+  } else {
+    set dtm [format %8s ""]
+  }
+  puts "  $dfname $dtm"
+}
+
+# This procedure shows the "status" page.  It uses the database
+# connect passed in as the "db" parameter.  If the "cls" parameter
+# is true, then VT100 escape codes are used to format the display.
+#
+proc show_status {db cls} {
+  global TRG
+  $db eval BEGIN
+  if {[catch {
+    set cmdline [$db one { SELECT value FROM config WHERE name='cmdline' }]
+    set nJob [$db one { SELECT value FROM config WHERE name='njob' }]
+  } msg]} {
+    if {$cls} {puts "\033\[H\033\[2J"}
+    puts "Cannot read database: $TRG(dbname)"
+    return
+  }
+  set now [clock_milliseconds]
+  set tm [$db one {
+    SELECT 
+      COALESCE((SELECT value FROM config WHERE name='end'), $now) -
+      (SELECT value FROM config WHERE name='start')
+  }]
+
+  set total 0
+  foreach s {"" ready running done failed omit} { set S($s) 0; set W($s) 0; }
+  set workpending 0
+  $db eval {
+    SELECT state, count(*) AS cnt, sum(estwork) AS ew FROM jobs GROUP BY 1
+  } {
+    incr S($state) $cnt
+    incr W($state) $ew
+    incr totalw $ew
+  }
+  set nt 0
+  set ne 0
+  $db eval {
+    SELECT sum(ntest) AS nt, sum(nerr) AS ne FROM jobs HAVING nt>0
+  } break
+  set fin [expr $W(done)+$W(failed)+$W(omit)]
+  if {$cmdline!=""} {set cmdline " $cmdline"}
+
+  if {$cls} {
+    # Move the cursor to the top-left corner.  Each iteration will simply
+    # overwrite.
+    puts -nonewline "\033\[H"
+    flush stdout
+  }
+  puts [format %-79.79s "Command: \[testrunner.tcl$cmdline\]"]
+  puts [format %-79.79s "Summary: [elapsetime $tm], $fin/$total jobs,\
+                         $ne errors, $nt tests"]
+
+  set srcdir [file dirname [file dirname $TRG(info_script)]]
+  set line "Running: $S(running) (max: $nJob)"
+  if {$S(running)>0 && $fin>10} {
+    set tmleft [expr {($tm/$fin)*($totalw-$fin)}]
+    if {$tmleft<0.02*$tm} {
+      set tmleft [expr {$tm*0.02}]
+    }
+    set etc " ETC [elapsetime $tmleft]"
+    if {[string length $line]+[string length $etc]<80} {
+      append line $etc
+    }
+  }
+  puts [format %-79.79s $line]
+  if {$S(running)>0} {
+    $db eval {
+      SELECT * FROM jobs WHERE state='running' ORDER BY starttime 
+    } job {
+      display_job [array get job] $now
+    }
+  }
+  if {$S(failed)>0} {
+    # $toshow is the number of failures to report.  In $cls mode,
+    # status tries to limit the number of failure reported so that
+    # the status display does not overflow a 24-line terminal.  It will
+    # always show at least the most recent 4 failures, even if an overflow
+    # is needed.  No limit is imposed for a status within $cls.
+    #
+    if {$cls && $S(failed)>18-$S(running)} {
+      set toshow [expr {18-$S(running)}]
+      if {$toshow<4} {set toshow 4}
+      set shown " (must recent $toshow shown)"
+    } else {
+      set toshow $S(failed)
+      set shown ""
+    }
+    puts [format %-79s  "Failed:  $S(failed) $shown"]
+    $db eval {
+      SELECT * FROM jobs WHERE state='failed'
+       ORDER BY endtime DESC LIMIT $toshow
+    } job {
+      display_job [array get job]
+    }
+    set nOmit [$db one {SELECT count(*) FROM jobs WHERE state='omit'}]
+    if {$nOmit} {
+      puts [format %-79s "  ... $nOmit jobs omitted due to failures"]
+    }
+  }
+  if {$cls} {
+    # Clear everything else to the bottom of the screen
+    puts -nonewline "\033\[0J"
+    flush stdout
+  }
+  $db eval COMMIT
+}
+
+  
+
+#--------------------------------------------------------------------------
+# Check if this is the "status" command:
+#
+if {[llength $argv]>=1 
+ && [string compare -nocase status [lindex $argv 0]]==0 
+} {
+  set delay 0
+  set cls 0
+  for {set ii 1} {$ii<[llength $argv]} {incr ii} {
+    set a0 [lindex $argv $ii]
+    if {$a0=="-d" && $ii+1<[llength $argv]} {
+      incr ii
+      set delay [lindex $argv $ii]
+      if {![string is integer -strict $delay]} {
+        puts "Argument to -d should be an integer"
+        exit 1
+      }
+    } elseif {$a0=="-cls" || $a0=="--cls"} {
+      set cls 1
+    } else {
+      puts "unknown option: \"$a0\""
+      exit 1
+    }
+  }
+
+  if {![file readable $TRG(dbname)]} {
+    puts "Database missing: $TRG(dbname)"
+    exit
+  }
+  sqlite3 mydb $TRG(dbname)
+  mydb timeout 2000
+
+  # Clear the whole screen initially.
+  #
+  if {$delay>0 || $cls} {puts -nonewline "\033\[2J"}
+
+  while {1} {
+    show_status mydb [expr {$delay>0 || $cls}]
+    if {$delay<=0} break
+    after [expr {$delay*1000}]
+  }
+  mydb close
+  exit
+}
+
+#--------------------------------------------------------------------------
+# Check if this is the "joblist" command:
+#
+if {[llength $argv]>=1 
+ && [string compare -nocase "joblist" [lindex $argv 0]]==0 
+} {
+  set pattern {}
+  for {set ii 1} {$ii<[llength $argv]} {incr ii} {
+    set a0 [lindex $argv $ii]
+    if {$pattern==""} {
+      set pattern [string trim $a0 *]
+    } else {
+      puts "unknown option: \"$a0\""
+      exit 1
+    }
+  }
+  set SQL {SELECT displaytype, displayname, state FROM jobs}
+  if {$pattern!=""} {
+    regsub -all {[^a-zA-Z0-9*.-/]} $pattern ? pattern
+    set pattern [string tolower $pattern]
+    append SQL \
+       " WHERE lower(concat(state,' ',displaytype,' ',displayname)) GLOB '*$pattern*'"
+  }
+  append SQL " ORDER BY starttime"
+
+  if {![file readable $TRG(dbname)]} {
+    puts "Database missing: $TRG(dbname)"
+    exit
+  }
+  sqlite3 mydb $TRG(dbname)
+  mydb timeout 2000
+
+  mydb eval $SQL {
+    set label UNKNOWN
+    switch -- $state {
+      ready {set label READY}
+      done {set label DONE}
+      failed {set label FAILED}
+      omit {set label OMIT}
+      running {set label RUNNING}
+    }
+    puts [format {%-7s %-5s %s} $label $displaytype $displayname]
+  }
+  mydb close
+  exit
+}
+
+# Scan the output of all jobs looking for the summary lines that
+# report the number of test cases and the number of errors.
+# Aggregate these numbers and return them.
+#
+proc aggregate_test_counts {db} {
+  set ne 0
+  set nt 0
+  $db eval {SELECT sum(nerr) AS ne, sum(ntest) as nt FROM jobs} break
+  return [list $ne $nt]
+}
+
+#--------------------------------------------------------------------------
+# Check if this is the "errors" command:
+#
+if {[llength $argv]>=1
+ && ([string compare -nocase errors [lindex $argv 0]]==0 ||
+     [string match err* [lindex $argv 0]]==1)
+} {
+  set verbose 0
+  set pattern {}
+  set summary 0
+  for {set ii 1} {$ii<[llength $argv]} {incr ii} {
+    set a0 [lindex $argv $ii]
+    if {$a0=="-v" || $a0=="--verbose" || $a0=="-verbose"} {
+      set verbose 1
+    } elseif {$a0=="-s" || $a0=="--summary" || $a0=="-summary"} {
+      set summary 1
+    } elseif {$pattern==""} {
+      set pattern *[string trim $a0 *]*
+    } else {
+      puts "unknown option: \"$a0\"".  Use --help for more info."
+      exit 1
+    }
+  }
+  set cnt 0
+  sqlite3 mydb $TRG(dbname)
+  mydb timeout 5000
+  if {$summary} {
+    set sql "SELECT displayname FROM jobs WHERE state='failed'"
+  } else {
+    set sql "SELECT displaytype, displayname, output FROM jobs \
+              WHERE state='failed'"
+  }
+  if {$pattern!=""} {
+    regsub -all {[^a-zA-Z0-9*/ ?]} $pattern . pattern
+    append sql " AND displayname GLOB '$pattern'"
+  }
+  mydb eval $sql {
+    if {$summary} {
+      puts "FAILED: $displayname"
+      continue
+    }
+    puts "**** $displayname ****"
+    if {$verbose || $displaytype!="tcl"} {
+      puts $output
+    } else {
+      foreach line [split $output \n] {
+        if {[string match {!*} $line] || [string match *failed* $line]} {
+          puts $line
+        }
+      }
+    }
+    incr cnt
+  }
+  if {$pattern==""} {
+    set summary [aggregate_test_counts mydb]
+    mydb close
+    puts "Total [lindex $summary 0] errors out of [lindex $summary 1] tests"
+  } else {
+    mydb close
+  }
+  exit
+}
+
+#-------------------------------------------------------------------------
+# Parse the command line.
+#
+for {set ii 0} {$ii < [llength $argv]} {incr ii} {
+  set isLast [expr $ii==([llength $argv]-1)]
+  set a [lindex $argv $ii]
+  set n [string length $a]
+
+  if {[string range $a 0 0]=="-"} {
+    if {($n>2 && [string match "$a*" --jobs]) || $a=="-j"} {
+      incr ii
+      set TRG(nJob) [lindex $argv $ii]
+      if {$isLast} { usage }
+    } elseif {($n>2 && [string match "$a*" --zipvfs]) || $a=="-z"} {
+      incr ii
+      set TRG(zipvfs) [file normalize [lindex $argv $ii]]
+      if {$isLast} { usage }
+    } elseif {($n>2 && [string match "$a*" --buildonly]) || $a=="-b"} {
+      set TRG(buildonly) 1
+    } elseif {($n>2 && [string match "$a*" --config]) || $a=="-c"} {
+      incr ii
+      set TRG(config) [lindex $argv $ii]
+    } elseif {($n>2 && [string match "$a*" --dryrun]) || $a=="-d"} {
+      set TRG(dryrun) 1
+    } elseif {($n>2 && [string match "$a*" --explain]) || $a=="-e"} {
+      set TRG(explain) 1
+    } elseif {($n>2 && [string match "$a*" --omit]) || $a=="-c"} {
+      incr ii
+      set TRG(omitconfig) [lindex $argv $ii]
+    } elseif {[string match "$a*" --stop-on-error]} {
+      set TRG(stopOnError) 1
+    } elseif {[string match "$a*" --stop-on-coredump]} {
+      set TRG(stopOnCore) 1
+    } elseif {[string match "$a*" --status]} {
+      if {$tcl_platform(platform)=="windows"} {
+        puts stdout \
+"The --status option is not available on Windows. A suggested work-around"
+        puts stdout \
+"is to run the following command in a separate window:\n"
+        puts stdout "   [info nameofexe] $argv0 status -d 2\n"
+      } else {
+        set TRG(fullstatus) 1
+      }
+    } else {
+      usage
+    }
+  } else {
+    lappend TRG(patternlist) [string map {% *} $a]
+  }
+}
+set argv [list]
+
+# This script runs individual tests - tcl scripts or [make xyz] commands -
+# in directories named "testdir$N", where $N is an integer. This variable
+# contains a list of integers indicating the directories in use.
+#
+# This variable is accessed only via the following commands:
+#
+#   dirs_nHelper
+#     Return the number of entries currently in the list.
+#
+#   dirs_freeDir IDIR
+#     Remove value IDIR from the list. It is an error if it is not present.
+#
+#   dirs_allocDir
+#     Select a value that is not already in the list. Add it to the list
+#     and return it.
+#
+set TRG(dirs_in_use) [list]
+
+proc dirs_nHelper {} {
+  global TRG
+  llength $TRG(dirs_in_use)
+}
+proc dirs_freeDir {iDir} {
+  global TRG
+  set out [list]
+  foreach d $TRG(dirs_in_use) {
+    if {$iDir!=$d} { lappend out $d }
+  }
+  if {[llength $out]!=[llength $TRG(dirs_in_use)]-1} {
+    error "dirs_freeDir could not find $iDir"
+  }
+  set TRG(dirs_in_use) $out
+}
+proc dirs_allocDir {} {
+  global TRG
+  array set inuse [list]
+  foreach d $TRG(dirs_in_use) {
+    set inuse($d) 1
+  }
+  for {set iRet 0} {[info exists inuse($iRet)]} {incr iRet} { }
+  lappend TRG(dirs_in_use) $iRet
+  return $iRet
+}
+
+# Check that directory $dir exists. If it does not, create it. If 
+# it does, delete its contents.
+#
+proc create_or_clear_dir {dir} {
+  set dir [file normalize $dir]
+  catch { file mkdir $dir }
+  foreach f [glob -nocomplain [file join $dir *]] {
+    catch { file delete -force $f }
+  }
+}
+
+proc build_to_dirname {bname} {
+  set fold [string tolower [string map {- _} $bname]]
+  return "testrunner_build_$fold"
+}
+
+#-------------------------------------------------------------------------
+
+proc r_write_db {tcl} {
+  trdb eval { BEGIN EXCLUSIVE }
+  uplevel $tcl
+  trdb eval { COMMIT }
+}
+
+# Obtain a new job to be run by worker $iJob (an integer). A job is
+# returned as a three element list:
+#
+#    {$build $config $file}
+#
+proc r_get_next_job {iJob} {
+  global T
+
+  if {($iJob%2)} {
+    set orderby "ORDER BY priority ASC"
+  } else {
+    set orderby "ORDER BY priority DESC"
+  }
+
+  set ret [list]
+
+  r_write_db {
+    set query "
+      SELECT * FROM jobs AS j WHERE state='ready' $orderby LIMIT 1
+    " 
+    trdb eval $query job {
+      set tm [clock_milliseconds]
+      set T($iJob) $tm
+      set jobid $job(jobid)
+
+      trdb eval {
+        UPDATE jobs SET starttime=$tm, state='running' WHERE jobid=$jobid
+      }
+
+      set ret [array get job]
+    }
+  }
+
+  return $ret
+}
+
+# Usage:
+#
+#   add_job OPTION ARG OPTION ARG...
+#
+# where available OPTIONS are:
+#
+#   -displaytype
+#   -displayname
+#   -build
+#   -dirname     
+#   -cmd 
+#   -depid 
+#   -priority 
+#
+# Returns the jobid value for the new job.
+# 
+proc add_job {args} {
+  global estwork
+
+  set options {
+      -displaytype -displayname -build -dirname 
+      -cmd -depid -priority
+  }
+
+  # Set default values of options.
+  set A(-dirname) ""
+  set A(-depid)   ""
+  set A(-priority) 0
+  set A(-build)   ""
+
+  array set A $args
+
+  # Check all required options are present. And that no extras are present.
+  foreach o $options {
+    if {[info exists A($o)]==0} { error "missing required option $o" }
+  }
+  foreach o [array names A] {
+    if {[lsearch -exact $options $o]<0} { error "unrecognized option: $o" }
+  }
+
+  set state ""
+  if {$A(-depid)==""} { set state ready }
+  set type $A(-displaytype)
+  set ew $estwork($type)
+
+  trdb eval {
+    INSERT INTO jobs(
+      displaytype, displayname, build, dirname, cmd, depid, priority, estwork,
+      state
+    ) VALUES (
+      $type,
+      $A(-displayname),
+      $A(-build),
+      $A(-dirname),
+      $A(-cmd),
+      $A(-depid),
+      $A(-priority),
+      $ew,
+      $state
+    )
+  }
+
+  trdb last_insert_rowid
+}
+       
+
+# Argument $build is either an empty string, or else a list of length 3 
+# describing the job to build testfixture. In the usual form:
+#
+#    {ID DIRNAME DISPLAYNAME}
+# 
+# e.g    
+#
+#    {1 /home/user/sqlite/test/testrunner_bld_xyz All-Debug}
+# 
+proc add_tcl_jobs {build config patternlist {shelldepid ""}} {
+  global TRG
+
+  set topdir [file dirname $::testdir]
+  set testrunner_tcl [file normalize [info script]]
+
+  if {$build==""} {
+    set testfixture [info nameofexec]
+  } else {
+    set testfixture [file join [lindex $build 1] $TRG(testfixture)]
+  }
+  if {[lindex $build 2]=="Valgrind"} {
+    set setvar "export OMIT_MISUSE=1\n"
+    set testfixture "${setvar}valgrind -v --error-exitcode=1 $testfixture"
+  }
+
+  # The ::testspec array is populated by permutations.test
+  foreach f [dict get $::testspec($config) -files] {
+
+    if {[llength $patternlist]>0} {
+      set bMatch 0
+      foreach p $patternlist {
+        set p [string trim $p *]
+        if {[string index $p 0]=="^"} {
+          set p [string range $p 1 end]
+        } else {
+          set p "*$p"
+        }
+        if {[string index $p end]=="\$"} {
+          set p [string range $p 0 end-1]
+        } else {
+          set p "$p*"
+        }
+        if {[string match $p "$config [file tail $f]"]} {
+          set bMatch 1
+          break
+        }
+      }
+      if {$bMatch==0} continue
+    }
+
+    if {[file pathtype $f]!="absolute"} { set f [file join $::testdir $f] }
+    set f [file normalize $f]
+
+    set displayname [string map [list $topdir/ {}] $f]
+    if {$config=="full" || $config=="veryquick"} {
+      set cmd "$testfixture $f"
+    } else {
+      set cmd "$testfixture $testrunner_tcl $config $f"
+      set displayname "config=$config $displayname"
+    }
+    if {$build!=""} {
+      set displayname "[lindex $build 2] $displayname"
+    }
+
+    set lProp [trd_test_script_properties $f]
+    set priority 0
+    if {[lsearch $lProp slow]>=0} { set priority 2 }
+    if {[lsearch $lProp superslow]>=0} { set priority 4 }
+
+    set depid [lindex $build 0]
+    if {$shelldepid!="" && [lsearch $lProp shell]>=0} { set depid $shelldepid }
+
+    add_job                            \
+        -displaytype tcl               \
+        -displayname $displayname      \
+        -cmd $cmd                      \
+        -depid $depid                  \
+        -priority $priority
+  }
+}
+
+proc add_build_job {buildname target {postcmd ""} {depid ""}} {
+  global TRG
+
+  set dirname "[string tolower [string map {- _} $buildname]]_$target"
+  set dirname "testrunner_bld_$dirname"
+
+  set cmd "$TRG(makecmd) $target"
+  if {$postcmd!=""} {
+    append cmd "\n"
+    append cmd $postcmd
+  }
+
+  set id [add_job                                \
+    -displaytype bld                             \
+    -displayname "Build $buildname ($target)"    \
+    -dirname $dirname                            \
+    -build $buildname                            \
+    -cmd  $cmd                                   \
+    -depid $depid                                \
+    -priority 3
+  ]
+
+  list $id [file normalize $dirname] $buildname
+}
+
+proc add_shell_build_job {buildname dirname depid} {
+  global TRG
+
+  if {$TRG(platform)=="win"} {
+    set path [string map {/ \\} "$dirname/"]
+    set copycmd "xcopy $TRG(shell) $path"
+  } else {
+    set copycmd "cp $TRG(shell) $dirname/"
+  }
+
+  return [
+    add_build_job $buildname $TRG(shell) $copycmd $depid
+  ]
+}
+
+
+proc add_make_job {bld target} {
+  global TRG
+
+  if {$TRG(platform)=="win"} {
+    set path [string map {/ \\} [lindex $bld 1]]
+    set cmd "xcopy /S $path\\* ."
+  } else {
+    set cmd "cp -r [lindex $bld 1]/* ."
+  }
+  append cmd "\n$TRG(makecmd) $target"
+
+  add_job                                       \
+    -displaytype make                           \
+    -displayname "[lindex $bld 2] make $target" \
+    -cmd $cmd                                   \
+    -depid [lindex $bld 0]                      \
+    -priority 1
+}
+
+proc add_fuzztest_jobs {buildname} {
+
+  foreach {interpreter scripts} [trd_fuzztest_data] {
+    set subcmd [lrange $interpreter 1 end]
+    set interpreter [lindex $interpreter 0]
+
+    set bld [add_build_job $buildname $interpreter]
+    foreach {depid dirname displayname} $bld {}
+
+    foreach s $scripts {
+
+      # Fuzz data files fuzzdata1.db and fuzzdata2.db are larger than
+      # the others. So ensure that these are run as a higher priority.
+      set tail [file tail $s]
+      if {$tail=="fuzzdata1.db" || $tail=="fuzzdata2.db"} {
+        set priority 5
+      } else {
+        set priority 1
+      }
+
+      add_job                                                   \
+        -displaytype fuzz                                       \
+        -displayname "$buildname $interpreter $tail"            \
+        -depid $depid                                           \
+        -cmd "[file join $dirname $interpreter] $subcmd $s"     \
+        -priority $priority
+    }
+  }
+}
+
+proc add_zipvfs_jobs {} {
+  global TRG
+  source [file join $TRG(zipvfs) test zipvfs_testrunner.tcl]
+
+  set bld [add_build_job Zipvfs $TRG(testfixture)]
+  foreach s [zipvfs_testrunner_files] {
+    set cmd "[file join [lindex $bld 1] $TRG(testfixture)] $s"
+    add_job                                  \
+        -displaytype tcl                     \
+        -displayname "Zipvfs [file tail $s]" \
+        -cmd $cmd                            \
+        -depid [lindex $bld 0]
+  }
+
+  set ::env(SQLITE_TEST_DIR) $::testdir
+}
+
+# Used to add jobs for "mdevtest" and "sdevtest".
+#
+proc add_devtest_jobs {lBld patternlist} {
+  global TRG
+
+  foreach b $lBld {
+    set bld [add_build_job $b $TRG(testfixture)]
+    add_tcl_jobs $bld veryquick $patternlist SHELL
+    if {$patternlist==""} {
+      add_fuzztest_jobs $b
+    }
+
+    if {[trdb one "SELECT EXISTS (SELECT 1 FROM jobs WHERE depid='SHELL')"]} {
+      set sbld [add_shell_build_job $b [lindex $bld 1] [lindex $bld 0]]
+      set sbldid [lindex $sbld 0]
+      trdb eval {
+        UPDATE jobs SET depid=$sbldid WHERE depid='SHELL'
+      }
+    }
+
+  }
+}
+
+# Check to ensure that the interpreter is a full-blown "testfixture"
+# build and not just a "tclsh".  If this is not the case, issue an
+# error message and exit.
+#
+proc must_be_testfixture {} {
+  if {[lsearch [info commands] sqlite3_soft_heap_limit]<0} {
+    puts "Use testfixture, not tclsh, for these arguments."
+    exit 1
+  }
+}
+
+proc add_jobs_from_cmdline {patternlist} {
+  global TRG
+
+  if {$TRG(zipvfs)!=""} {
+    add_zipvfs_jobs
+    if {[llength $patternlist]==0} return
+  }
+
+  if {[llength $patternlist]==0} {
+    set patternlist [list veryquick]
+  }
+
+  set first [lindex $patternlist 0]
+  switch -- $first {
+    all {
+      must_be_testfixture
+      set patternlist [lrange $patternlist 1 end]
+      set clist [trd_all_configs]
+      foreach c $clist {
+        add_tcl_jobs "" $c $patternlist
+      }
+    }
+
+    devtest -
+    mdevtest {
+      set config_set {
+        All-O0
+        All-Debug
+      }
+      add_devtest_jobs $config_set [lrange $patternlist 1 end]
+    }
+
+    sdevtest {
+      set config_set {
+        All-Sanitize
+        All-Debug
+      }
+      add_devtest_jobs $config_set [lrange $patternlist 1 end]
+    }
+
+    release {
+      set patternlist [lrange $patternlist 1 end]
+      foreach b [trd_builds $TRG(platform)] {
+        if {$TRG(config)!="" && ![regexp "\\y$b\\y" $TRG(config)]} continue
+        if {[regexp "\\y$b\\y" $TRG(omitconfig)]} continue
+        set bld [add_build_job $b $TRG(testfixture)]
+        foreach c [trd_configs $TRG(platform) $b] {
+          add_tcl_jobs $bld $c $patternlist SHELL
+        }
+
+        if {$patternlist==""} {
+          foreach e [trd_extras $TRG(platform) $b] {
+            if {$e=="fuzztest"} {
+              add_fuzztest_jobs $b
+            } else {
+              add_make_job $bld $e
+            }
+          }
+        }
+
+        if {[trdb one "SELECT EXISTS(SELECT 1
+                                       FROM jobs WHERE depid='SHELL')"]} {
+          set sbld [add_shell_build_job $b [lindex $bld 1] [lindex $bld 0]]
+          set sbldid [lindex $sbld 0]
+          trdb eval {
+            UPDATE jobs SET depid=$sbldid WHERE depid='SHELL'
+          }
+        }
+      }
+    }
+
+    list {
+      set allperm [array names ::testspec]
+      lappend allperm all mdevtest sdevtest release list
+      puts "Allowed values for the PERMUTATION argument: [lsort $allperm]"
+      exit 0
+    }
+
+    default {
+      must_be_testfixture
+      if {[info exists ::testspec($first)]} {
+        add_tcl_jobs "" $first [lrange $patternlist 1 end]
+      } else {
+        add_tcl_jobs "" full $patternlist
+      }
+    }
+  }
+}
+
+proc make_new_testset {} {
+  global TRG
+
+  trdb eval {PRAGMA journal_mode=WAL;}
+  r_write_db {
+    trdb eval $TRG(schema)
+    set nJob $TRG(nJob)
+    set cmdline $TRG(cmdline)
+    set tm [clock_milliseconds]
+    trdb eval { REPLACE INTO config VALUES('njob', $nJob ); }
+    trdb eval { REPLACE INTO config VALUES('cmdline', $cmdline ); }
+    trdb eval { REPLACE INTO config VALUES('start', $tm ); }
+
+    add_jobs_from_cmdline $TRG(patternlist)
+
+  }
+}
+
+proc mark_job_as_finished {jobid output state endtm} {
+  set ntest 1
+  set nerr 0
+  if {$endtm>0} {
+    set re {\y(\d+) errors out of (\d+) tests( on [^\n]+\n)?}
+    if {[regexp $re $output all a b pltfm]} {
+      set nerr $a
+      set ntest $b
+    }
+    regexp {\ySQLite \d\d\d\d-\d\d-\d\d \d\d:\d\d:\d\d [0-9a-fA-F]+} \
+         $output svers
+  }
+  r_write_db {
+    if {$state=="failed"} {
+      set childstate omit
+      if {$nerr<=0} {set nerr 1}
+    } else {
+      set childstate ready
+    }
+    if {[info exists pltfm]} {set pltfm [string trim $pltfm]}
+    trdb eval {
+      UPDATE jobs 
+        SET output=$output, state=$state, endtime=$endtm, span=$endtm-starttime,
+            ntest=$ntest, nerr=$nerr, svers=$svers, pltfm=$pltfm
+        WHERE jobid=$jobid;
+      UPDATE jobs SET state=$childstate WHERE depid=$jobid AND state!='halt';
+      UPDATE config SET value=value+$nerr WHERE name='nfail';
+      UPDATE config SET value=value+$ntest WHERE name='ntest';
+    }
+  }
+}
+
+proc script_input_ready {fd iJob jobid} {
+  global TRG
+  global O
+  global T
+
+  if {[eof $fd]} {
+    trdb eval { SELECT * FROM jobs WHERE jobid=$jobid } job {}
+
+    # If this job specified a directory name, then delete the run.sh/run.bat
+    # file from it before continuing. This is because the contents of this
+    # directory might be copied by some other job, and we don't want to copy
+    # the run.sh file in this case.
+    if {$job(dirname)!=""} {
+      file delete -force [file join $job(dirname) $TRG(run)]
+    }
+
+    set ::done 1
+    fconfigure $fd -blocking 1
+    set state "done"
+    set rc [catch { close $fd } msg]
+    if {$rc} { 
+      puts [format %-79.79s "FAILED: $job(displayname) ($iJob)"]
+      set state "failed" 
+      if {$TRG(stopOnError)} {
+        puts "OUTPUT: $O($iJob)"
+        exit 1
+      }
+      if {$TRG(stopOnCore) && [string first {core dumped} $O($iJob)]>0} {
+        puts "OUTPUT: $O($iJob)"
+        exit 1
+      }
+    }
+
+    set tm [clock_milliseconds]
+    set jobtm [expr {$tm - $job(starttime)}]
+
+    puts $TRG(log) "### $job(displayname) ${jobtm}ms ($state)"
+    puts $TRG(log) [string trim $O($iJob)]
+
+    mark_job_as_finished $jobid $O($iJob) $state $tm
+
+    dirs_freeDir $iJob
+    launch_some_jobs
+    incr ::wakeup
+  } else {
+    set rc [catch { gets $fd line } res]
+    if {$rc} {
+      puts "ERROR $res"
+    } 
+    if {$res>=0} {
+      append O($iJob) "$line\n"
+    }
+  }
+
+}
+
+proc dirname {ii} {
+  return "testdir$ii"
+}
+
+proc launch_another_job {iJob} {
+  global TRG
+  global O
+  global T
+
+  set testfixture [info nameofexec]
+  set script $TRG(info_script)
+
+  set O($iJob) ""
+  
+  set jobdict [r_get_next_job $iJob]
+  if {$jobdict==""} { return 0 }
+  array set job $jobdict
+
+  set dir $job(dirname)
+  if {$dir==""} { set dir [dirname $iJob] }
+  create_or_clear_dir $dir
+
+  if {$job(build)!=""} {
+    set srcdir [file dirname $::testdir]
+    if {$job(build)=="Zipvfs"} {
+      set script [zipvfs_testrunner_script]
+    } else {
+      set bWin [expr {$TRG(platform)=="win"}]
+      set script [trd_buildscript $job(build) $srcdir $bWin]
+    }
+    set fd [open [file join $dir $TRG(make)] w]
+    puts $fd $script
+    close $fd
+  }
+
+  # Add a batch/shell file command to set the directory used for temp
+  # files to the test's working directory. Otherwise, tests that use
+  # large numbers of temp files (e.g. zipvfs), might generate temp 
+  # filename collisions.
+  if {$TRG(platform)=="win"} {
+    set set_tmp_dir "SET SQLITE_TMPDIR=[file normalize $dir]"
+  } else {
+    set set_tmp_dir "export SQLITE_TMPDIR=\"[file normalize $dir]\""
+  }
+
+  if { $TRG(dryrun) } {
+
+    mark_job_as_finished $job(jobid) "" done 0
+    dirs_freeDir $iJob
+    if {$job(build)!=""} {
+      puts $TRG(log) "(cd $dir ; $job(cmd) )"
+    } else {
+      puts $TRG(log) "$job(cmd)"
+    }
+
+  } else {
+    set pwd [pwd]
+    cd $dir
+    set fd [open $TRG(run) w]
+    puts $fd $set_tmp_dir
+    puts $fd $job(cmd)
+    close $fd
+    set fd [open "|$TRG(runcmd) 2>@1" r]
+    cd $pwd
+
+    fconfigure $fd -blocking false -translation binary
+    fileevent $fd readable [list script_input_ready $fd $iJob $job(jobid)]
+  }
+
+  return 1
+}
+
+# Show the testing progress report
+#
+proc progress_report {} {
+  global TRG
+
+  if {$TRG(fullstatus)} {
+    if {$::tcl_platform(platform)=="windows"} {
+      exec [info nameofexe] $::argv0 status --cls
+    } else {
+      show_status trdb 1
+    }
+  } else {
+    set tmms [expr [clock_milliseconds] - $TRG(starttime)]
+    set tm [format "%d" [expr int($tmms/1000.0 + 0.5)]]
+  
+    set wtotal 0
+    set wdone 0
+    r_write_db {
+      trdb eval { 
+        SELECT displaytype, state, count(*) AS cnt, sum(estwork) AS ew
+        FROM jobs 
+        GROUP BY 1, 2 
+      } {
+        set v($state,$displaytype) $cnt
+        incr t($displaytype) $cnt
+        incr wtotal $ew
+        if {$state=="done" || $state=="failed" || $state=="omit"} {
+          incr wdone $ew
+        }
+      }
+    }
+  
+    set text ""
+    foreach j [lsort [array names t]] {
+      foreach k {done failed running} { incr v($k,$j) 0 }
+      set fin [expr $v(done,$j) + $v(failed,$j)]
+      lappend text "${j}($fin/$t($j))"
+      if {$v(failed,$j)>0} {
+        lappend text "f$v(failed,$j)"
+      }
+      if {$v(running,$j)>0} {
+        lappend text "r$v(running,$j)"
+      }
+    }
+    set report "[elapsetime $tmms] [join $text { }]"
+    if {$wdone>0} {
+      set tmleft [expr {($tmms/$wdone)*($wtotal-$wdone)}]
+      set etc " ETC [elapsetime $tmleft]"
+      if {[string length $report]+[string length $etc]<80} {
+        append report $etc
+      }
+    }
+    puts -nonewline [format %-79.79s $report]\r
+    flush stdout
+  }
+  after $TRG(reporttime) progress_report
+}
+
+proc launch_some_jobs {} {
+  global TRG
+  set nJob [trdb one { SELECT value FROM config WHERE name='njob' }]
+
+  while {[dirs_nHelper]<$nJob} {
+    set iDir [dirs_allocDir]
+    if {0==[launch_another_job $iDir]} {
+      dirs_freeDir $iDir
+      break;
+    }
+  }
+}
+
+proc run_testset {} {
+  global TRG
+  set ii 0
+
+  set TRG(starttime) [clock_milliseconds]
+  set TRG(log) [open $TRG(logname) w]
+
+  launch_some_jobs
+
+  if {$TRG(fullstatus)} {puts "\033\[2J"}
+  progress_report
+  while {[dirs_nHelper]>0} {
+    after 500 {incr ::wakeup}
+    vwait ::wakeup
+  }
+  close $TRG(log)
+  progress_report
+
+  r_write_db {
+    set tm [clock_milliseconds]
+    trdb eval { REPLACE INTO config VALUES('end', $tm ); }
+    set nErr [trdb one {SELECT count(*) FROM jobs WHERE state='failed'}]
+    if {$nErr>0} {
+      puts "$nErr failures:"
+      trdb eval {
+        SELECT displayname FROM jobs WHERE state='failed'
+      } {
+        puts "FAILED: $displayname"
+      }
+    }
+    set nOmit [trdb one {SELECT count(*) FROM jobs WHERE state='omit'}]
+    if {$nOmit>0} {
+      puts "$nOmit jobs skipped due to prior failures"
+    }
+  }
+
+  puts "\nTest database is $TRG(dbname)"
+  puts "Test log is $TRG(logname)"
+  trdb eval {
+     SELECT sum(ntest) AS totaltest,
+            sum(nerr) AS totalerr
+       FROM jobs
+  } break
+  trdb eval {
+     SELECT max(endtime)-min(starttime) AS totaltime
+       FROM jobs WHERE endtime>0
+  } break;
+  set et [elapsetime $totaltime]
+  set pltfm {}
+  trdb eval {
+     SELECT pltfm, count(*) FROM jobs WHERE pltfm IS NOT NULL
+      ORDER BY 2 DESC LIMIT 1
+  } break
+  if {$totalerr==""} {set totalerr 0}
+  if {$totaltest==""} {set totaltest 0}
+  puts "$totalerr errors out of $totaltest tests in $et $pltfm"
+  trdb eval {
+     SELECT DISTINCT substr(svers,1,79) as v1 FROM jobs WHERE svers IS NOT NULL
+  } {puts $v1}
+
+}
+
+# Handle the --buildonly option, if it was specified.
+#
+proc handle_buildonly {} {
+  global TRG
+  if {$TRG(buildonly)} {
+    r_write_db {
+      trdb eval { DELETE FROM jobs WHERE displaytype!='bld' }
+    }
+  }
+}
+
+# Handle the --explain option.  Provide a human-readable
+# explanation of all the tests that are in the trdb database jobs
+# table.
+#
+proc explain_layer {indent depid} {
+  global TRG
+  if {$TRG(buildonly)} {
+    set showtests 0
+  } else {
+    set showtests 1
+  }
+  trdb eval {SELECT jobid, displayname, displaytype, dirname
+               FROM jobs WHERE depid=$depid ORDER BY displayname} {
+    if {$displaytype=="bld"} {
+      puts "${indent}$displayname in $dirname"
+      explain_layer "${indent}   " $jobid
+    } elseif {$showtests} {
+      set tail [lindex $displayname end]
+      set e1 [lindex $displayname 1]
+      if {[string match config=* $e1]} {
+        set cfg [string range $e1 7 end]
+        puts "${indent}($cfg) $tail"
+      } else {
+        puts "${indent}$tail"
+      }
+    }
+  }
+}
+proc explain_tests {} {
+  explain_layer "" ""
+}
+
+sqlite3 trdb $TRG(dbname)
+trdb timeout $TRG(timeout)
+set tm [lindex [time { make_new_testset }] 0]
+if {$TRG(explain)} {
+  explain_tests
+} else {
+  if {$TRG(nJob)>1} {
+    puts "splitting work across $TRG(nJob) cores"
+  }
+  puts "built testset in [expr $tm/1000]ms.."
+  handle_buildonly
+  run_testset
+}
+trdb close
diff --git a/test/testrunner_data.tcl b/test/testrunner_data.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..9abfb242daa84780184e7faa87fa5cf580ce4119
--- /dev/null
+++ b/test/testrunner_data.tcl
@@ -0,0 +1,678 @@
+
+
+
+namespace eval trd {
+  variable tcltest
+  variable extra
+  variable all_configs
+  variable build
+
+
+  # Tcl tests to run for various builds.
+  #
+  set tcltest(linux.Fast-One)             veryquick
+  set tcltest(linux.Debug-One)            veryquick
+  set tcltest(linux.Debug-Two)            veryquick
+  set tcltest(linux.Have-Not)             veryquick
+  set tcltest(linux.Secure-Delete)        veryquick
+  set tcltest(linux.Unlock-Notify)        veryquick
+  set tcltest(linux.Update-Delete-Limit)  veryquick
+  set tcltest(linux.Extra-Robustness)     veryquick
+  set tcltest(linux.Device-Two)           veryquick
+  set tcltest(linux.No-lookaside)         veryquick
+  set tcltest(linux.Devkit)               veryquick
+  set tcltest(linux.Apple)                veryquick
+  set tcltest(linux.Android)              veryquick
+  set tcltest(linux.Sanitize)             veryquick
+  set tcltest(linux.Device-One)           all
+  set tcltest(linux.Default)              all_plus_autovacuum_crash
+  set tcltest(linux.Valgrind)             valgrind
+
+  set tcltest(osx.Locking-Style)          veryquick
+  set tcltest(osx.Have-Not)               veryquick
+  set tcltest(osx.Apple)                  all_less_no_mutex_try
+
+  set tcltest(win.Stdcall)                veryquick
+  set tcltest(win.Have-Not)               veryquick
+  set tcltest(win.Windows-Memdebug)       veryquick
+  set tcltest(win.Windows-Win32Heap)      veryquick
+  set tcltest(win.Windows-Sanitize)       veryquick
+  set tcltest(win.Default)                full
+
+  # Extra [make xyz] tests that should be run for various builds.
+  #
+  set extra(linux.Check-Symbols)          checksymbols
+  set extra(linux.Fast-One)               {fuzztest sourcetest}
+  set extra(linux.Debug-One)              {fuzztest sourcetest mptest}
+  set extra(linux.Debug-Two)              {fuzztest sourcetest}
+  set extra(linux.Have-Not)               {fuzztest sourcetest}
+  set extra(linux.Secure-Delete)          {fuzztest sourcetest}
+  set extra(linux.Unlock-Notify)          {fuzztest sourcetest}
+  set extra(linux.Update-Delete-Limit)    {fuzztest sourcetest}
+  set extra(linux.Extra-Robustness)       {fuzztest sourcetest}
+  set extra(linux.Device-Two)             {fuzztest sourcetest threadtest}
+  set extra(linux.No-lookaside)           {fuzztest sourcetest}
+  set extra(linux.Devkit)                 {fuzztest sourcetest}
+  set extra(linux.Android)                {fuzztest sourcetest}
+  set extra(linux.Apple)                  {fuzztest sourcetest}
+  set extra(linux.Sanitize)               {fuzztest sourcetest}
+  set extra(linux.Default)                {fuzztest sourcetest threadtest}
+
+  set extra(osx.Apple)                    {fuzztest threadtest}
+  set extra(osx.Have-Not)                 {fuzztest sourcetest}
+  set extra(osx.Locking-Style)            {mptest fuzztest sourcetest}
+
+  set extra(win.Default)                  mptest
+  set extra(win.Stdcall)                  {fuzztest sourcetest}
+  set extra(win.Windows-Memdebug)         {fuzztest sourcetest}
+  set extra(win.Windows-Win32Heap)        {fuzztest sourcetest}
+  set extra(win.Windows-Sanitize)         fuzztest
+  set extra(win.Have-Not)                 {fuzztest sourcetest}
+
+  # The following mirrors the set of test suites invoked by "all.test".
+  #
+  set all_configs {
+    full no_optimization memsubsys1 memsubsys2 singlethread
+    multithread onefile utf16 exclusive persistent_journal
+    persistent_journal_error no_journal no_journal_error
+    autovacuum_ioerr no_mutex_try fullmutex journaltest
+    inmemory_journal pcache0 pcache10 pcache50 pcache90
+    pcache100 prepare mmap
+  }
+
+  #-----------------------------------------------------------------------
+  # Start of build() definitions.
+  #
+  set build(Default) {
+    -O2
+    --disable-amalgamation --disable-shared
+    --enable-session
+    -DSQLITE_ENABLE_RBU
+    -DSQLITE_ENABLE_STMT_SCANSTATUS
+  }
+
+  # These two are used by [testrunner.tcl mdevtest] (All-O0) and
+  # [testrunner.tcl sdevtest] (All-Sanitize).
+  #
+  set build(All-Debug) {
+    --with-debug --enable-all
+    -DSQLITE_ENABLE_ORDERED_SET_AGGREGATES
+  }
+  set build(All-O0) {
+    -O0 --enable-all
+  }
+  set build(All-Sanitize) {
+    -DSQLITE_OMIT_LOOKASIDE=1
+    --enable-all -fsanitize=address,undefined -fno-sanitize-recover=undefined
+  }
+
+  set build(Sanitize) {
+    CC=clang -fsanitize=address,undefined -fno-sanitize-recover=undefined
+    -DSQLITE_ENABLE_STAT4
+    -DSQLITE_OMIT_LOOKASIDE=1
+    -DCONFIG_SLOWDOWN_FACTOR=5.0
+    -DSQLITE_ENABLE_RBU
+    --with-debug
+    --enable-all
+  }
+  set build(Stdcall) {
+    -DWITHOUT_JIMSH=1
+    -DUSE_STDCALL=1
+    -DSQLITE_USE_ONLY_WIN32=1
+    -O2
+  }
+
+  # The "Have-Not" configuration sets all possible -UHAVE_feature options
+  # in order to verify that the code works even on platforms that lack
+  # these support services.
+  set build(Have-Not) {
+    -DHAVE_FDATASYNC=0
+    -DHAVE_GMTIME_R=0
+    -DHAVE_ISNAN=0
+    -DHAVE_LOCALTIME_R=0
+    -DHAVE_LOCALTIME_S=0
+    -DHAVE_MALLOC_USABLE_SIZE=0
+    -DHAVE_STRCHRNUL=0
+    -DHAVE_USLEEP=0
+    -DHAVE_UTIME=0
+  }
+  set build(Unlock-Notify) {
+    -O2
+    -DSQLITE_ENABLE_UNLOCK_NOTIFY
+    -DSQLITE_THREADSAFE
+    -DSQLITE_TCL_DEFAULT_FULLMUTEX=1
+  }
+  set build(Secure-Delete) {
+    -O2
+    -DSQLITE_SECURE_DELETE=1
+    -DSQLITE_SOUNDEX=1
+  }
+  set build(Update-Delete-Limit) {
+    -O2
+    -DSQLITE_DEFAULT_FILE_FORMAT=4
+    -DSQLITE_ENABLE_UPDATE_DELETE_LIMIT=1
+    -DSQLITE_ENABLE_STMT_SCANSTATUS
+    -DSQLITE_LIKE_DOESNT_MATCH_BLOBS
+    -DSQLITE_ENABLE_CURSOR_HINTS
+  }
+  set build(Check-Symbols) {
+    -DSQLITE_MEMDEBUG=1
+    -DSQLITE_ENABLE_FTS3_PARENTHESIS=1
+    -DSQLITE_ENABLE_FTS3=1
+    -DSQLITE_ENABLE_RTREE=1
+    -DSQLITE_ENABLE_MEMSYS5=1
+    -DSQLITE_ENABLE_MEMSYS3=1
+    -DSQLITE_ENABLE_COLUMN_METADATA=1
+    -DSQLITE_ENABLE_UPDATE_DELETE_LIMIT=1
+    -DSQLITE_SECURE_DELETE=1
+    -DSQLITE_SOUNDEX=1
+    -DSQLITE_ENABLE_ATOMIC_WRITE=1
+    -DSQLITE_ENABLE_MEMORY_MANAGEMENT=1
+    -DSQLITE_ENABLE_OVERSIZE_CELL_CHECK=1
+    -DSQLITE_ENABLE_STAT4
+    -DSQLITE_ENABLE_STMT_SCANSTATUS
+    --enable-fts5 --enable-session
+  }
+  set build(Debug-One) {
+    --disable-shared
+    -O2 -funsigned-char
+    -DSQLITE_DEBUG=1
+    -DSQLITE_MEMDEBUG=1
+    -DSQLITE_MUTEX_NOOP=1
+    -DSQLITE_TCL_DEFAULT_FULLMUTEX=1
+    -DSQLITE_ENABLE_FTS3=1
+    -DSQLITE_ENABLE_RTREE=1
+    -DSQLITE_ENABLE_MEMSYS5=1
+    -DSQLITE_ENABLE_COLUMN_METADATA=1
+    -DSQLITE_ENABLE_STAT4
+    -DSQLITE_ENABLE_HIDDEN_COLUMNS
+    -DSQLITE_MAX_ATTACHED=125
+    -DSQLITE_MUTATION_TEST
+    --enable-fts5
+  }
+  set build(Debug-Two) {
+    -DSQLITE_DEFAULT_MEMSTATUS=0
+    -DSQLITE_MAX_EXPR_DEPTH=0
+    --with-debug
+  }
+  set build(Fast-One) {
+    -O6
+    -DSQLITE_ENABLE_FTS4=1
+    -DSQLITE_ENABLE_RTREE=1
+    -DSQLITE_ENABLE_STAT4
+    -DSQLITE_ENABLE_RBU
+    -DSQLITE_MAX_ATTACHED=125
+    -DSQLITE_MAX_MMAP_SIZE=12884901888
+    -DSQLITE_ENABLE_SORTER_MMAP=1
+    --enable-session
+  }
+  set build(Device-One) {
+    -O2
+    -DSQLITE_DEBUG=1
+    -DSQLITE_DEFAULT_AUTOVACUUM=1
+    -DSQLITE_DEFAULT_CACHE_SIZE=64
+    -DSQLITE_DEFAULT_PAGE_SIZE=1024
+    -DSQLITE_DEFAULT_TEMP_CACHE_SIZE=32
+    -DSQLITE_DISABLE_LFS=1
+    -DSQLITE_ENABLE_ATOMIC_WRITE=1
+    -DSQLITE_ENABLE_IOTRACE=1
+    -DSQLITE_ENABLE_MEMORY_MANAGEMENT=1
+    -DSQLITE_MAX_PAGE_SIZE=4096
+    -DSQLITE_OMIT_LOAD_EXTENSION=1
+    -DSQLITE_OMIT_PROGRESS_CALLBACK=1
+    -DSQLITE_OMIT_VIRTUALTABLE=1
+    -DSQLITE_ENABLE_HIDDEN_COLUMNS
+    -DSQLITE_TEMP_STORE=3
+  }
+  set build(Device-Two) {
+    -DSQLITE_4_BYTE_ALIGNED_MALLOC=1
+    -DSQLITE_DEFAULT_AUTOVACUUM=1
+    -DSQLITE_DEFAULT_CACHE_SIZE=1000
+    -DSQLITE_DEFAULT_LOCKING_MODE=0
+    -DSQLITE_DEFAULT_PAGE_SIZE=1024
+    -DSQLITE_DEFAULT_TEMP_CACHE_SIZE=1000
+    -DSQLITE_DISABLE_LFS=1
+    -DSQLITE_ENABLE_FTS3=1
+    -DSQLITE_ENABLE_MEMORY_MANAGEMENT=1
+    -DSQLITE_ENABLE_RTREE=1
+    -DSQLITE_MAX_COMPOUND_SELECT=50
+    -DSQLITE_MAX_PAGE_SIZE=32768
+    -DSQLITE_OMIT_TRACE=1
+    -DSQLITE_TEMP_STORE=3
+    -DSQLITE_THREADSAFE=2
+    --enable-fts5 --enable-session
+  }
+  set build(Locking-Style) {
+    -O2
+    -DSQLITE_ENABLE_LOCKING_STYLE=1
+  }
+  set build(Android) {
+    -Os
+    -DHAVE_USLEEP=1
+    -DSQLITE_HAVE_ISNAN
+    -DSQLITE_POWERSAFE_OVERWRITE=1
+    -DSQLITE_DEFAULT_FILE_FORMAT=4
+    -DSQLITE_DEFAULT_AUTOVACUUM=1
+    -DSQLITE_ENABLE_MEMORY_MANAGEMENT=1
+    -DSQLITE_ENABLE_FTS3
+    -DSQLITE_ENABLE_FTS3_BACKWARDS
+    -DSQLITE_ENABLE_FTS4
+    -DSQLITE_SECURE_DELETE
+    -DSQLITE_ENABLE_BATCH_ATOMIC_WRITE
+    -DBIONIC_IOCTL_NO_SIGNEDNESS_OVERLOAD
+    -DSQLITE_ALLOW_ROWID_IN_VIEW
+    -DSQLITE_ENABLE_BYTECODE_VTAB
+    -Wno-unused-parameter
+    -Werror
+    -DUSE_PREAD64
+    -Dfdatasync=fdatasync
+    -DHAVE_MALLOC_H=1
+    -DHAVE_MALLOC_USABLE_SIZE
+    -DSQLITE_ENABLE_DBSTAT_VTAB
+  }
+  # Compile-options used by Android but omitted from these
+  # tests:
+  #   -DNDEBUG=1
+  #   -DSQLITE_DEFAULT_LEGACY_ALTER_TABLE
+  #   -DSQLITE_DEFAULT_JOURNAL_SIZE_LIMIT=1048576
+  #   -DSQLITE_DEFAULT_FILE_PERMISSIONS=0600
+  #   -DSQLITE_OMIT_BUILTIN_TEST
+  #   -DSQLITE_OMIT_LOAD_EXTENSION
+  #   -DSQLITE_OMIT_COMPILEOPTION_DIAGS
+  #
+  set build(Apple) {
+    -Os
+    -DHAVE_GMTIME_R=1
+    -DHAVE_ISNAN=1
+    -DHAVE_LOCALTIME_R=1
+    -DHAVE_PREAD=1
+    -DHAVE_PWRITE=1
+    -DHAVE_UTIME=1
+    -DSQLITE_DEFAULT_CACHE_SIZE=1000
+    -DSQLITE_DEFAULT_CKPTFULLFSYNC=1
+    -DSQLITE_DEFAULT_MEMSTATUS=1
+    -DSQLITE_DEFAULT_PAGE_SIZE=1024
+    -DSQLITE_DISABLE_PAGECACHE_OVERFLOW_STATS=1
+    -DSQLITE_ENABLE_API_ARMOR=1
+    -DSQLITE_ENABLE_AUTO_PROFILE=1
+    -DSQLITE_ENABLE_FLOCKTIMEOUT=1
+    -DSQLITE_ENABLE_FTS3=1
+    -DSQLITE_ENABLE_FTS3_PARENTHESIS=1
+    -DSQLITE_ENABLE_FTS3_TOKENIZER=1
+    -DSQLITE_ENABLE_PERSIST_WAL=1
+    -DSQLITE_ENABLE_PURGEABLE_PCACHE=1
+    -DSQLITE_ENABLE_RTREE=1
+    -DSQLITE_ENABLE_SETLK_TIMEOUT=2
+    -DSQLITE_ENABLE_SNAPSHOT=1
+    -DSQLITE_ENABLE_UPDATE_DELETE_LIMIT=1
+    -DSQLITE_MAX_LENGTH=2147483645
+    -DSQLITE_MAX_VARIABLE_NUMBER=500000
+    -DSQLITE_NO_SYNC=1
+    -DSQLITE_OMIT_AUTORESET=1
+    -DSQLITE_OMIT_LOAD_EXTENSION=1
+    -DSQLITE_PREFER_PROXY_LOCKING=1
+    -DSQLITE_SERIES_CONSTRAINT_VERIFY=1
+    -DSQLITE_THREADSAFE=2
+    -DSQLITE_USE_URI=1
+    -DSQLITE_WRITE_WALFRAME_PREBUFFERED=1
+    -DUSE_GUARDED_FD=1
+    -DUSE_PREAD=1
+    --enable-fts5
+  }
+  set build(Extra-Robustness) {
+    -DSQLITE_ENABLE_OVERSIZE_CELL_CHECK=1
+    -DSQLITE_MAX_ATTACHED=62
+  }
+  set build(Devkit) {
+    -DSQLITE_DEFAULT_FILE_FORMAT=4
+    -DSQLITE_MAX_ATTACHED=30
+    -DSQLITE_ENABLE_COLUMN_METADATA
+    -DSQLITE_ENABLE_FTS4
+    -DSQLITE_ENABLE_FTS5
+    -DSQLITE_ENABLE_FTS4_PARENTHESIS
+    -DSQLITE_DISABLE_FTS4_DEFERRED
+    -DSQLITE_ENABLE_RTREE
+    --enable-fts5
+  }
+  set build(No-lookaside) {
+    -DSQLITE_TEST_REALLOC_STRESS=1
+    -DSQLITE_OMIT_LOOKASIDE=1
+  }
+  set build(Valgrind) {
+    -DSQLITE_ENABLE_STAT4
+    -DSQLITE_ENABLE_FTS4
+    -DSQLITE_ENABLE_RTREE
+    -DSQLITE_ENABLE_HIDDEN_COLUMNS
+    -DCONFIG_SLOWDOWN_FACTOR=8.0
+  }
+
+  set build(Windows-Memdebug) {
+    MEMDEBUG=1
+    DEBUG=3
+  }
+  set build(Windows-Win32Heap) {
+    WIN32HEAP=1
+    DEBUG=4
+  }
+  set build(Windows-Sanitize) {
+    ASAN=1
+  }
+
+}
+
+
+#-------------------------------------------------------------------------
+proc trd_import {} {
+  uplevel {
+    variable ::trd::tcltest
+    variable ::trd::extra
+    variable ::trd::all_configs
+    variable ::trd::build
+  }
+}
+
+proc trd_builds {platform} {
+  trd_import
+
+  set klist [lsort -uniq [concat \
+      [array names tcltest ${platform}.*] \
+      [array names extra ${platform}.*]   \
+  ]]
+  if {[llength $klist]==0} {
+    error "no such platform: $platform"
+  }
+
+  set ret ""
+  foreach k $klist {
+    foreach {p c} [split $k "."] {}
+    lappend ret $c
+  }
+  set ret
+}
+
+proc trd_configs {platform bld} {
+  trd_import
+
+  set clist [list]
+
+  if {[info exists tcltest($platform.$bld)]} {
+    set clist $tcltest($platform.$bld)
+    if {$clist=="all"} {
+      set clist $all_configs
+    } elseif {$clist=="all_plus_autovacuum_crash"} {
+      set clist [concat $all_configs autovacuum_crash]
+    } elseif {$clist=="all_less_no_mutex_try"} {
+      set idx [lsearch $all_configs no_mutex_try]
+      set clist [lreplace $all_configs $idx $idx]
+    }
+  }
+
+  set clist
+}
+
+proc trd_extras {platform bld} {
+  trd_import
+  if {[info exists extra($platform.$bld)]==0} { return [list] }
+  return $extra($platform.$bld)
+}
+
+# Usage: 
+#
+#     trd_fuzztest_data
+#
+# This returns data used by testrunner.tcl to run commands equivalent 
+# to [make fuzztest]. The returned value is a list, which should be
+# interpreted as a sequence of pairs. The first element of each pair
+# is an interpreter name. The second element is a list of files.
+# testrunner.tcl automatically creates one job to build each interpreter,
+# and one to run each of the files with it once it has been built.
+#
+# In practice, the returned value looks like this:
+#
+# {
+#   {fuzzcheck {$testdir/fuzzdata1.db $testdir/fuzzdata2.db ...}}
+#   {{sessionfuzz run} $testdir/sessionfuzz-data1.db}
+# }
+#
+# where $testdir is replaced by the full-path to the test-directory (the
+# directory containing this file). "fuzzcheck" and "sessionfuzz" have .exe
+# extensions on windows.
+#
+proc trd_fuzztest_data {} {
+  set EXE ""
+  set lFuzzDb    [glob [file join $::testdir fuzzdata*.db]] 
+  set lSessionDb [glob [file join $::testdir sessionfuzz-data*.db]]
+
+  if {$::tcl_platform(platform)=="windows"} {
+    return [list fuzzcheck.exe $lFuzzDb]
+  }
+
+  return [list fuzzcheck $lFuzzDb {sessionfuzz run} $lSessionDb]
+}
+
+
+proc trd_all_configs {} {
+  trd_import
+  set all_configs
+}
+
+proc trimscript {text} {
+  set text [string map {"\n    " "\n"} [string trim $text]]
+}
+
+proc make_sh_script {srcdir opts cflags makeOpts configOpts} {
+
+  set tcldir [::tcl::pkgconfig get libdir,install]
+  set myopts ""
+  if {[info exists ::env(OPTS)]} {
+    append myopts "# From environment variable:\n"
+    append myopts "OPTS=$::env(OPTS)\n\n"
+  }
+  foreach o [lsort $opts] { 
+    append myopts "OPTS=\"\$OPTS $o\"\n"
+  }
+
+  return [trimscript [subst -nocommands {
+    set -e
+    if [ "\$#" -ne 1 ] ; then
+      echo "Usage: \$0 <target>"
+      exit -1
+    fi
+    
+    SRCDIR="$srcdir"
+    TCLDIR="$tcldir"
+    
+    if [ ! -f Makefile ] ; then
+      \$SRCDIR/configure --with-tcl=\$TCLDIR $configOpts 
+    fi
+    
+    $myopts
+    CFLAGS="$cflags"
+    
+    make \$1 "CFLAGS=\$CFLAGS" "OPTS=\$OPTS" $makeOpts
+  }]]
+}
+
+# Generate the text of a *.bat script.
+#
+proc make_bat_file {srcdir opts cflags makeOpts} {
+  set srcdir [file nativename [file normalize $srcdir]]
+
+  return [trimscript [subst -nocommands {
+    set TARGET=%1
+    set TMP=%CD%
+    nmake /f $srcdir\\Makefile.msc TOP="$srcdir" %TARGET% "CCOPTS=$cflags" "OPTS=$opts" $makeOpts
+  }]]
+}
+
+
+# Generate the text of a shell script.
+#
+proc make_script {cfg srcdir bMsvc} {
+  set opts       [list]                         ;# OPTS value
+  set cflags     [expr {$bMsvc ? "-Zi" : "-g"}] ;# CFLAGS value
+  set makeOpts   [list]                         ;# Extra args for [make]
+  set configOpts [list]                         ;# Extra args for [configure]
+
+  # Define either SQLITE_OS_WIN or SQLITE_OS_UNIX, as appropriate.
+  if {$::tcl_platform(platform)=="windows"} {
+    lappend opts -DSQLITE_OS_WIN=1
+  } else {
+    lappend opts -DSQLITE_OS_UNIX=1
+  }
+
+  # Unless the configuration specifies -DHAVE_USLEEP=0, set -DHAVE_USLEEP=1.
+  #
+  if {[lsearch $cfg "-DHAVE_USLEEP=0"]<0} {
+    lappend cfg -DHAVE_USLEEP=1
+  }
+
+  # Loop through the parameters of the nominated configuration, updating
+  # $opts, $cflags, $makeOpts and $configOpts along the way. Rules are as
+  # follows:
+  #
+  #   1. If the parameter begins with "-D", add it to $opts.
+  #
+  #   2. If the parameter begins with "--" add it to $configOpts. Unless
+  #      this command is preparing a script for MSVC - then add an 
+  #      equivalent to $makeOpts or $opts.
+  #
+  #   3. If the parameter begins with "-" add it to $cflags. If in MSVC
+  #      mode and the parameter is an -O<integer> option, instead add
+  #      an OPTIMIZATIONS=<integer> switch to $makeOpts.
+  #
+  #   4. If none of the above apply, add the parameter to $makeOpts
+  #
+  foreach param $cfg {
+
+    if {[string range $param 0 1]=="-D"} {
+      lappend opts $param
+      continue
+    }
+
+    if {[string range $param 0 1]=="--"} {
+      if {$bMsvc==0} {
+        lappend configOpts $param
+      } else {
+
+        switch -- $param {
+          --disable-amalgamation {
+            lappend makeOpts USE_AMALGAMATION=0
+          }
+          --disable-shared {
+            lappend makeOpts USE_CRT_DLL=0 DYNAMIC_SHELL=0
+          }
+          --enable-fts5 {
+            lappend opts -DSQLITE_ENABLE_FTS5
+          }
+          --enable-shared {
+            lappend makeOpts USE_CRT_DLL=1 DYNAMIC_SHELL=1
+          }
+          --enable-session {
+            lappend opts -DSQLITE_ENABLE_PREUPDATE_HOOK
+            lappend opts -DSQLITE_ENABLE_SESSION
+          }
+          --enable-all {
+          }
+          --with-debug {
+            # lappend makeOpts OPTIMIZATIONS=0
+            lappend opts -DSQLITE_DEBUG
+          }
+          default {
+            error "Cannot translate $param for MSVC"
+          }
+        }
+      }
+
+      continue
+    }
+
+    if {[string range $param 0 0]=="-"} {
+
+      if {$bMsvc} {
+        if {[regexp -- {^-O(\d+)$} $param -> level]} {
+          lappend makeOpts OPTIMIZATIONS=$level
+          continue
+        }
+        if {$param eq "-fsanitize=address,undefined"} {
+          lappend makeOpts ASAN=1
+          continue
+        }
+      }
+
+      lappend cflags $param
+      continue
+    }
+
+    lappend makeOpts $param
+  }
+
+  if {$bMsvc==0} {
+    set zRet [make_sh_script $srcdir $opts $cflags $makeOpts $configOpts]
+  } else {
+    set zRet [make_bat_file $srcdir $opts $cflags $makeOpts]
+  }
+}
+
+# Usage:
+#
+#    trd_buildscript CONFIG SRCDIR MSVC
+#
+# This command returns the full text of a script (either a shell script or
+# an ms-dos bat file) that may be used to build SQLite source code according
+# to a nominated configuration.
+#
+# Parameter CONFIG must be a configuration defined above in the ::trd::build
+# array. SRCDIR is the root directory of an SQLite source tree (the parent
+# directory of that containing this script). MSVC is a boolean - true to
+# use the MSVC compiler, false otherwise.
+#
+proc trd_buildscript {config srcdir bMsvc} {
+  trd_import
+
+  # Ensure that the named configuration exists.
+  if {![info exists build($config)]} {
+    if {$config!="help"} {
+      puts "No such build config: $config"
+    }
+    puts "Available configurations: [lsort [array names build]]"
+    flush stdout
+    exit 1
+  }
+
+  # Generate and return the script.
+  return [make_script $build($config) $srcdir $bMsvc]
+}
+
+# Usage:
+#
+#    trd_test_script_properties PATH
+#
+# The argument must be a path to a Tcl test script. This function scans the
+# first 100 lines of the script for lines that look like:
+#
+#    TESTRUNNER: <properties>
+#
+# where <properties> is a list of identifiers, each of which defines a 
+# property of the test script. Example properties are "slow" or "superslow".
+#
+proc trd_test_script_properties {path} {
+  # Use this global array as a cache:
+  global trd_test_script_properties_cache
+
+  if {![info exists trd_test_script_properties_cache($path)]} {
+    set fd [open $path]
+    set ret [list]
+    for {set line 0} {$line < 100 && ![eof $fd]} {incr line} {
+      set text [gets $fd]
+      if {[string match -nocase *testrunner:* $text]} {
+        regexp -nocase {.*testrunner:(.*)} $text -> properties
+        lappend ret {*}$properties
+      }
+    }
+    set trd_test_script_properties_cache($path) $ret
+    close $fd
+  }
+
+  set trd_test_script_properties_cache($path)
+}
diff --git a/test/thread001.test b/test/thread001.test
new file mode 100644
index 0000000000000000000000000000000000000000..1390f0d991532b914f123239f32aad4a5aff2f61
--- /dev/null
+++ b/test/thread001.test
@@ -0,0 +1,147 @@
+# 2007 September 7
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# $Id: thread001.test,v 1.10 2009/03/26 14:48:07 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+
+source $testdir/tester.tcl
+if {[run_thread_tests]==0} { finish_test ; return }
+ifcapable !shared_cache { finish_test ; return }
+
+set ::enable_shared_cache [sqlite3_enable_shared_cache]
+
+set ::NTHREAD 10
+
+# Run this test three times: 
+# 
+#    1) All threads use the same database handle.
+#    2) All threads use their own database handles.
+#    3) All threads use their own database handles, shared-cache is enabled.
+#
+#
+#
+foreach {tn same_db shared_cache} [list \
+         1  1       0                   \
+         2  0       0                   \
+         3  0       1                   \
+] {
+  # Empty the database.
+  #
+  catchsql { DROP TABLE ab; }
+
+  do_test thread001.$tn.0 {
+    db close
+    sqlite3_enable_shared_cache $shared_cache
+    sqlite3_enable_shared_cache $shared_cache
+  } $shared_cache
+  sqlite3 db test.db -fullmutex 1 -key xyzzy
+
+  set dbconfig ""
+  if {$same_db} {
+    set dbconfig [list set ::DB [sqlite3_connection_pointer db]]
+  }
+
+  # Set up a database and a schema. The database contains a single
+  # table with two columns. The first column ("a") is an INTEGER PRIMARY 
+  # KEY. The second contains the md5sum of all rows in the table with
+  # a smaller value stored in column "a".
+  #
+  do_test thread001.$tn.1 {
+    execsql {
+      CREATE TABLE ab(a INTEGER PRIMARY KEY, b);
+      CREATE INDEX ab_i ON ab(b);
+      INSERT INTO ab SELECT NULL, md5sum(a, b) FROM ab;
+      SELECT count(*) FROM ab;
+    }
+  } {1}
+  do_test thread001.$tn.2 {
+    execsql {
+      SELECT 
+        (SELECT md5sum(a, b) FROM ab WHERE a < (SELECT max(a) FROM ab)) ==
+        (SELECT b FROM ab WHERE a = (SELECT max(a) FROM ab))
+    }
+  } {1}
+  do_test thread001.$tn.3 {
+    execsql { PRAGMA integrity_check }
+  } {ok}
+
+  set thread_program {
+    #sqlthread parent {puts STARTING..}
+    set needToClose 0
+    if {![info exists ::DB]} {
+      set ::DB [sqlthread open test.db xyzzy]
+      #sqlthread parent "puts \"OPEN $::DB\""
+      set needToClose 1
+    }
+  
+    for {set i 0} {$i < 100} {incr i} {
+      # Test that the invariant is true.
+      do_test t1 {
+        execsql {
+          SELECT 
+            (SELECT md5sum(a, b) FROM ab WHERE +a < (SELECT max(a) FROM ab)) ==
+            (SELECT b FROM ab WHERE a = (SELECT max(a) FROM ab))
+        }
+      } {1}
+  
+      # Add another row to the database.
+      execsql { INSERT INTO ab SELECT NULL, md5sum(a, b) FROM ab }
+    }
+  
+    if {$needToClose} {
+      #sqlthread parent "puts \"CLOSE $::DB\""
+      sqlite3_close $::DB
+    }
+    #sqlthread parent "puts \"DONE\""
+  
+    list OK
+  }
+  
+  # Kick off $::NTHREAD threads:
+  #
+  array unset finished
+  for {set i 0} {$i < $::NTHREAD} {incr i} {
+    thread_spawn finished($i) $dbconfig $thread_procs $thread_program
+  }
+  
+  # Wait for all threads to finish,  then check they all returned "OK".
+  #
+  for {set i 0} {$i < $::NTHREAD} {incr i} {
+    if {![info exists finished($i)]} {
+      vwait finished($i)
+    }
+    do_test thread001.$tn.4.$i {
+      set ::finished($i)
+    } OK
+  }
+  
+  # Check the database still looks Ok.
+  #
+  do_test thread001.$tn.5 {
+    execsql { SELECT count(*) FROM ab; }
+  } [expr {1 + $::NTHREAD*100}]
+  do_test thread001.$tn.6 {
+    execsql {
+      SELECT 
+        (SELECT md5sum(a, b) FROM ab WHERE +a < (SELECT max(a) FROM ab)) ==
+        (SELECT b FROM ab WHERE a = (SELECT max(a) FROM ab))
+    }
+  } {1}
+  do_test thread001.$tn.7 {
+    execsql { PRAGMA integrity_check }
+  } {ok}
+}
+
+sqlite3_enable_shared_cache $::enable_shared_cache
+catch { db close }
+set sqlite_open_file_count 0
+finish_test
diff --git a/test/thread002.test b/test/thread002.test
new file mode 100644
index 0000000000000000000000000000000000000000..3e9439e213da131993cb5255c96fc610fde1c8b9
--- /dev/null
+++ b/test/thread002.test
@@ -0,0 +1,105 @@
+# 2007 September 10
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+#   This test attempts to deadlock SQLite in shared-cache mode.
+#     
+#
+# $Id: thread002.test,v 1.9 2009/03/26 14:48:07 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+
+set do_not_use_codec 1
+source $testdir/tester.tcl
+if {[run_thread_tests]==0} { finish_test ; return }
+ifcapable !shared_cache { finish_test ; return }
+
+db close
+set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
+
+set ::NTHREAD 10
+
+do_test thread002.1 {
+  # Create 3 databases with identical schemas:
+  for {set ii 0} {$ii < 3} {incr ii} {
+    forcedelete test${ii}.db
+    sqlite3 db test${ii}.db
+    execsql {
+      CREATE TABLE t1(k, v);
+      CREATE INDEX t1_i ON t1(v);
+      INSERT INTO t1(v) VALUES(1.0);
+    }
+    db close
+  }
+} {}
+
+set thread_program {
+  set ::DB [sqlite3_open test.db]
+  for {set ii 1} {$ii <= 3} {incr ii} {
+    set T [lindex $order [expr $ii-1]]
+    execsql "ATTACH 'test${T}.db' AS aux${ii}"
+  }
+
+  for {set ii 0} {$ii < 100} {incr ii} {
+    execsql { SELECT * FROM aux1.t1 }
+    execsql { INSERT INTO aux1.t1(v) SELECT sum(v) FROM aux2.t1 }
+  
+    execsql { SELECT * FROM aux2.t1 }
+    execsql { INSERT INTO aux2.t1(v) SELECT sum(v) FROM aux3.t1 }
+  
+    execsql { SELECT * FROM aux3.t1 }
+    execsql { INSERT INTO aux3.t1(v) SELECT sum(v) FROM aux1.t1 }
+
+    execsql { CREATE TABLE IF NOT EXISTS aux1.t2(a,b) }
+    execsql { DROP TABLE IF EXISTS aux1.t2 }
+
+    # if {($ii%10)==0} {puts -nonewline . ; flush stdout}
+    puts -nonewline . ; flush stdout
+  }
+
+  sqlite3_close $::DB
+  list OK
+}
+
+set order_list [list {0 1 2} {0 2 1} {1 0 2} {1 2 0} {2 0 1} {2 1 0}]
+
+array unset finished
+for {set ii 0} {$ii < $::NTHREAD} {incr ii} {
+  set order [lindex $order_list [expr $ii%6]]
+  thread_spawn finished($ii) $thread_procs "set order {$order}" $thread_program
+}
+
+# Wait for all threads to finish,  then check they all returned "OK".
+#
+for {set i 0} {$i < $::NTHREAD} {incr i} {
+  if {![info exists finished($i)]} {
+    vwait finished($i)
+  }
+  do_test thread002.2.$i {
+    set ::finished($i)
+  } OK
+}
+
+# Check all three databases are Ok.
+for {set ii 0} {$ii < 3} {incr ii} {
+  do_test thread002.3.$ii {
+    sqlite3 db test${ii}.db
+    set res [list                         \
+      [execsql {SELECT count(*) FROM t1}] \
+      [execsql {PRAGMA integrity_check}]  \
+    ]
+    db close
+    set res
+  } [list [expr 1 + $::NTHREAD*100] ok]
+}
+
+sqlite3_enable_shared_cache $::enable_shared_cache
+set sqlite_open_file_count 0
+finish_test
diff --git a/test/thread003.test b/test/thread003.test
new file mode 100644
index 0000000000000000000000000000000000000000..8c7440c82ee6f3b4abf749bd054b3cbc2d5a5447
--- /dev/null
+++ b/test/thread003.test
@@ -0,0 +1,189 @@
+# 2007 September 10
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+#   This file contains tests that attempt to break the pcache module
+#   by bombarding it with simultaneous requests from multiple threads.
+#     
+# $Id: thread003.test,v 1.8 2009/03/26 14:48:07 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+
+source $testdir/tester.tcl
+if {[run_thread_tests]==0} { finish_test ; return }
+
+# Set up a couple of different databases full of pseudo-randomly 
+# generated data.
+#
+do_test thread003.1.1 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t1(a, b, c);
+  }
+  for {set ii 0} {$ii < 5000} {incr ii} {
+    execsql {INSERT INTO t1 VALUES($ii, randomblob(200), randomblob(200))}
+  }
+  execsql { 
+    CREATE INDEX i1 ON t1(a, b); 
+    COMMIT;
+  }
+} {}
+do_test thread003.1.2 {
+  expr {([file size test.db] / 1024) > 2000}
+} {1}
+do_test thread003.1.3 {
+  db close
+  forcedelete test2.db
+  sqlite3 db test2.db
+} {}
+do_test thread003.1.4 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t1(a, b, c);
+  }
+  for {set ii 0} {$ii < 5000} {incr ii} {
+    execsql {INSERT INTO t1 VALUES($ii, randomblob(200), randomblob(200))}
+  }
+  execsql { 
+    CREATE INDEX i1 ON t1(a, b); 
+    COMMIT;
+  }
+} {}
+do_test thread003.1.5 {
+  expr {([file size test.db] / 1024) > 2000}
+} {1}
+do_test thread003.1.6 {
+  db close
+} {}
+
+
+# This test opens a connection on each of the large (>2MB) database files
+# created by the previous block. The connections do not share a cache.
+# Both "cache_size" parameters are set to 15, so there is a maximum of
+# 30 pages available globally.
+#
+# Then, in separate threads, the databases are randomly queried over and
+# over again. This will force the connections to recycle clean pages from
+# each other. If there is a thread-safety problem, a segfault or assertion
+# failure may eventually occur.
+#
+set nSecond 30
+puts "Starting thread003.2 (should run for ~$nSecond seconds)"
+do_test thread003.2 {
+  foreach zFile {test.db test2.db} {
+    set SCRIPT [format {
+      set iEnd [expr {[clock_seconds] + %d}]
+      set ::DB [sqlthread open %s xyzzy]
+  
+      # Set the cache size to 15 pages per cache. 30 available globally.
+      execsql { PRAGMA cache_size = 15 }
+  
+      while {[clock_seconds] < $iEnd} {
+        set iQuery [expr {int(rand()*5000)}]
+        execsql " SELECT * FROM t1 WHERE a = $iQuery "
+      }
+  
+      sqlite3_close $::DB
+      expr 1
+    } $nSecond $zFile]
+  
+    unset -nocomplain finished($zFile)
+    thread_spawn finished($zFile) $thread_procs $SCRIPT
+  }
+  foreach zFile {test.db test2.db} {
+    if {![info exists finished($zFile)]} {
+      vwait finished($zFile)
+    }
+  }
+  expr 0
+} {0}
+
+# This test is the same as the test above, except that each thread also
+# writes to the database. This causes pages to be moved back and forth 
+# between the caches internal dirty and clean lists, which is another
+# opportunity for a thread-related bug to present itself.
+#
+set nSecond 30
+puts "Starting thread003.3 (should run for ~$nSecond seconds)"
+do_test thread003.3 {
+  foreach zFile {test.db test2.db} {
+    set SCRIPT [format {
+      set iStart [clock_seconds]
+      set iEnd [expr {[clock_seconds] + %d}]
+      set ::DB [sqlthread open %s xyzzy]
+  
+      # Set the cache size to 15 pages per cache. 30 available globally.
+      execsql { PRAGMA cache_size = 15 }
+  
+      while {[clock_seconds] < $iEnd} {
+        set iQuery [expr {int(rand()*5000)}]
+        execsql "SELECT * FROM t1 WHERE a = $iQuery"
+        execsql "UPDATE t1 SET b = randomblob(200) 
+                 WHERE a < $iQuery AND a > $iQuery + 20
+        "
+      }
+  
+      sqlite3_close $::DB
+      expr 1
+    } $nSecond $zFile]
+  
+    unset -nocomplain finished($zFile)
+    thread_spawn finished($zFile) $thread_procs $SCRIPT
+  }
+  foreach zFile {test.db test2.db} {
+    if {![info exists finished($zFile)]} {
+      vwait finished($zFile)
+    }
+  }
+  expr 0
+} {0}
+
+# In this test case, one thread is continually querying the database.
+# The other thread does not have a database connection, but calls
+# sqlite3_release_memory() over and over again.
+#
+set nSecond 30
+puts "Starting thread003.4 (should run for ~$nSecond seconds)"
+unset -nocomplain finished(1)
+unset -nocomplain finished(2)
+do_test thread003.4 {
+  thread_spawn finished(1) $thread_procs [format {
+    set iEnd [expr {[clock_seconds] + %d}]
+    set ::DB [sqlthread open test.db xyzzy]
+
+    # Set the cache size to 15 pages per cache. 30 available globally.
+    execsql { PRAGMA cache_size = 15 }
+
+    while {[clock_seconds] < $iEnd} {
+      set iQuery [expr {int(rand()*5000)}]
+      execsql "SELECT * FROM t1 WHERE a = $iQuery"
+    }
+
+    sqlite3_close $::DB
+    expr 1
+  } $nSecond] 
+  thread_spawn finished(2) [format {
+    set iEnd [expr {[clock_seconds] + %d}]
+
+    while {[clock_seconds] < $iEnd} {
+      sqlite3_release_memory 1000
+    }
+  } $nSecond]
+  
+  foreach ii {1 2} {
+    if {![info exists finished($ii)]} {
+      vwait finished($ii)
+    }
+  }
+  expr 0
+} {0}
+
+set sqlite_open_file_count 0
+finish_test
diff --git a/test/thread004.test b/test/thread004.test
new file mode 100644
index 0000000000000000000000000000000000000000..b2adc460d008a85446bab42c65e7643a70a78fde
--- /dev/null
+++ b/test/thread004.test
@@ -0,0 +1,79 @@
+# 2009 February 26
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# $Id: thread004.test,v 1.3 2009/06/05 17:09:12 drh Exp $
+
+set testdir [file dirname $argv0]
+
+source $testdir/tester.tcl
+if {[run_thread_tests]==0} { finish_test ; return }
+ifcapable !shared_cache {
+  finish_test
+  return
+}
+if { [info commands sqlite3_table_column_metadata] eq "" } {
+  finish_test
+  return
+}
+
+# Use shared-cache mode for this test.
+# 
+db close
+set ::enable_shared_cache [sqlite3_enable_shared_cache]
+sqlite3_enable_shared_cache 1
+
+# Create a table in database test.db
+#
+sqlite3 db test.db
+do_test thread004-1.1 {
+  execsql { CREATE TABLE t1(a, b, c) }
+} {}
+
+do_test thread004-1.2 {
+
+  set ThreadOne {
+    set iStart [clock_seconds]
+    while {[clock_seconds]<$iStart+20} {
+      set ::DB [sqlite3_open test.db]
+      sqlite3_close $::DB
+    }
+  }
+  set ThreadTwo {
+    set ::DB [sqlite3_open test.db]
+    set iStart [clock_seconds]
+    set nErr 0
+    while {[clock_seconds] <$iStart+20} {
+      incr nErr [catch {sqlite3_table_column_metadata $::DB main t1 a}]
+    }
+    sqlite3_close $::DB
+    set nErr
+  }
+  
+  # Run two threads. The first thread opens and closes database test.db
+  # repeatedly. Each time this happens, the in-memory schema used by
+  # all connections to test.db is discarded.
+  #
+  # The second thread calls sqlite3_table_column_metadata() over and
+  # over again. Each time it is called, the database schema is loaded
+  # if it is not already in memory. At one point this was crashing.
+  #
+  unset -nocomplain finished
+  thread_spawn finished(1) $thread_procs $ThreadOne
+  thread_spawn finished(2) $thread_procs $ThreadTwo
+  
+  foreach t {1 2} {
+    if {![info exists finished($t)]} { vwait finished($t) }
+  }
+
+  set finished(2)
+} {0}
+sqlite3_enable_shared_cache $::enable_shared_cache
+finish_test
diff --git a/test/thread005.test b/test/thread005.test
new file mode 100644
index 0000000000000000000000000000000000000000..89cbfe76da8f5e46736ba90c7c3a788b9754386c
--- /dev/null
+++ b/test/thread005.test
@@ -0,0 +1,238 @@
+# 2009 March 11
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test a race-condition that shows up in shared-cache mode.
+#
+# $Id: thread005.test,v 1.5 2009/03/26 14:48:07 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+
+source $testdir/tester.tcl
+if {[run_thread_tests]==0} { finish_test ; return }
+ifcapable !shared_cache {
+  finish_test
+  return
+}
+
+db close
+
+# Use shared-cache mode for these tests.
+# 
+set ::enable_shared_cache [sqlite3_enable_shared_cache]
+sqlite3_enable_shared_cache 1
+
+#-------------------------------------------------------------------------
+# This test attempts to hit the race condition fixed by commit [6363].
+#
+proc runsql {zSql {db {}}} {
+  set rc SQLITE_OK
+  while {$rc=="SQLITE_OK" && $zSql ne ""} {
+    set STMT [sqlite3_prepare_v2 $db $zSql -1 zSql]
+    while {[set rc [sqlite3_step $STMT]] eq "SQLITE_ROW"} { }
+    set rc [sqlite3_finalize $STMT]
+  }
+  return $rc
+}
+do_test thread005-1.1 {
+  sqlite3 db test.db
+  db eval { CREATE TABLE t1(a, b) }
+  db close
+} {}
+for {set ii 2} {$ii < 500} {incr ii} {
+  unset -nocomplain finished
+  thread_spawn finished(0) {sqlite3_open test.db}
+  thread_spawn finished(1) {sqlite3_open test.db}
+  if {![info exists finished(0)]} { vwait finished(0) }
+  if {![info exists finished(1)]} { vwait finished(1) }
+
+  do_test thread005-1.$ii {
+    runsql { BEGIN }                       $finished(0)
+    runsql { INSERT INTO t1 VALUES(1, 2) } $finished(0)
+
+    # If the race-condition was hit, then $finished(0 and $finished(1)
+    # will not use the same pager cache. In this case the next statement
+    # can be executed succesfully. However, if the race-condition is not
+    # hit, then $finished(1) will be blocked by the write-lock held by 
+    # $finished(0) on the shared-cache table t1 and the statement will
+    # return SQLITE_LOCKED.
+    #
+    runsql { SELECT * FROM t1 }            $finished(1)
+  } {SQLITE_LOCKED}
+
+  sqlite3_close $finished(0)
+  sqlite3_close $finished(1)
+}
+
+
+#-------------------------------------------------------------------------
+# This test tries to exercise a race-condition that existed in shared-cache
+# mode at one point. The test uses two threads; each has a database connection
+# open on the same shared cache. The schema of the database is:
+#
+#    CREATE TABLE t1(a INTEGER PRIMARY KEY, b UNIQUE);
+#
+# One thread is a reader and the other thread a reader and a writer. The 
+# writer thread repeats the following transaction as fast as possible:
+# 
+#      BEGIN;
+#        DELETE FROM t1 WHERE a = (SELECT max(a) FROM t1);
+#        INSERT INTO t1 VALUES(NULL, NULL);
+#        UPDATE t1 SET b = a WHERE a = (SELECT max(a) FROM t1);
+#        SELECT count(*) FROM t1 WHERE b IS NULL;
+#      COMMIT;
+#
+# The reader thread does the following over and over as fast as possible:
+#
+#      BEGIN;
+#        SELECT count(*) FROM t1 WHERE b IS NULL;
+#      COMMIT;
+#
+# The test runs for 20 seconds or until one of the "SELECT count(*)" 
+# statements returns a non-zero value. If an SQLITE_LOCKED error occurs,
+# the connection issues a ROLLBACK immediately to abandon the current
+# transaction.
+#
+# If everything is working correctly, the "SELECT count(*)" statements 
+# should never return a value other than 0. The "INSERT" statement 
+# executed by the writer adds a row with "b IS NULL" to the table, but
+# the subsequent UPDATE statement sets its "b" value to an integer
+# immediately afterwards.
+#
+# However, before the race-condition was fixed, if the reader's SELECT
+# statement hit an error (say an SQLITE_LOCKED) at the same time as the
+# writer was executing the UPDATE statement, then it could incorrectly
+# rollback the statement-transaction belonging to the UPDATE statement.
+# The UPDATE statement would still be reported as successful to the user,
+# but it would have no effect on the database contents.
+# 
+# Note that it has so far only proved possible to hit this race-condition
+# when using an ATTACHed database. There doesn't seem to be any reason
+# for this, other than that operating on an ATTACHed database means there
+# are a few more mutex grabs and releases during the window of time open
+# for the race-condition. Maybe this encourages the scheduler to context
+# switch or something...
+#
+
+forcedelete test.db test2.db
+unset -nocomplain finished
+
+do_test thread005-2.1 {
+  sqlite3 db test.db
+  execsql { ATTACH 'test2.db' AS aux }
+  execsql {
+    CREATE TABLE aux.t1(a INTEGER PRIMARY KEY, b UNIQUE);
+    INSERT INTO t1 VALUES(1, 1);
+    INSERT INTO t1 VALUES(2, 2);
+  }
+  db close
+} {}
+
+
+set ThreadProgram {
+  proc execsql {zSql {db {}}} {
+    if {$db eq ""} {set db $::DB}
+
+    set lRes [list]
+    set rc SQLITE_OK
+
+    while {$rc=="SQLITE_OK" && $zSql ne ""} {
+      set STMT [sqlite3_prepare_v2 $db $zSql -1 zSql]
+      while {[set rc [sqlite3_step $STMT]] eq "SQLITE_ROW"} {
+        for {set i 0} {$i < [sqlite3_column_count $STMT]} {incr i} {
+          lappend lRes [sqlite3_column_text $STMT 0]
+        }
+      }
+      set rc [sqlite3_finalize $STMT]
+    }
+
+    if {$rc != "SQLITE_OK"} { error "$rc [sqlite3_errmsg $db]" }
+    return $lRes
+  }
+
+  if {$isWriter} {
+    set Sql {
+      BEGIN;
+        DELETE FROM t1 WHERE a = (SELECT max(a) FROM t1);
+        INSERT INTO t1 VALUES(NULL, NULL);
+        UPDATE t1 SET b = a WHERE a = (SELECT max(a) FROM t1);
+        SELECT count(*) FROM t1 WHERE b IS NULL;
+      COMMIT;
+    }
+  } else {
+    set Sql {
+      BEGIN;
+      SELECT count(*) FROM t1 WHERE b IS NULL;
+      COMMIT;
+    }
+  }
+
+  set ::DB [sqlite3_open test.db]
+
+  execsql { ATTACH 'test2.db' AS aux }
+
+  set result "ok"
+  set finish [expr [clock_seconds]+5]
+  while {$result eq "ok" && [clock_seconds] < $finish} {
+    set rc [catch {execsql $Sql} msg]
+    if {$rc} {
+      if {[string match "SQLITE_LOCKED*" $msg]} {
+        catch { execsql ROLLBACK }
+      } else {
+        sqlite3_close $::DB
+        error $msg
+      }
+    } elseif {$msg ne "0"} {
+      set result "failed"
+    }
+  }
+
+  sqlite3_close $::DB
+  set result
+}
+
+# There is a race-condition in btree.c that means that if two threads
+# attempt to open the same database at roughly the same time, and there
+# does not already exist a shared-cache corresponding to that database,
+# then two shared-caches can be created instead of one. Things still more
+# or less work, but the two database connections do not use the same
+# shared-cache.
+#
+# If the threads run by this test hit this race-condition, the tests
+# fail (because SQLITE_BUSY may be unexpectedly returned instead of
+# SQLITE_LOCKED). To prevent this from happening, open a couple of
+# connections to test.db and test2.db now to make sure that there are
+# already shared-caches in memory for all databases opened by the
+# test threads.
+#
+sqlite3 db test.db
+sqlite3 db test2.db
+
+puts "Running thread-tests for ~20 seconds"
+thread_spawn finished(0) {set isWriter 0} $ThreadProgram
+thread_spawn finished(1) {set isWriter 1} $ThreadProgram
+if {![info exists finished(0)]} { vwait finished(0) }
+if {![info exists finished(1)]} { vwait finished(1) }
+
+catch { db close }
+catch { db2 close }
+
+do_test thread005-2.2 {
+  list $finished(0) $finished(1)
+} {ok ok}
+
+do_test thread005-2.3 {
+  sqlite3 db test.db
+  execsql { ATTACH 'test2.db' AS aux }
+  execsql { SELECT count(*) FROM t1 WHERE b IS NULL }
+} {0}
+
+sqlite3_enable_shared_cache $::enable_shared_cache
+finish_test
diff --git a/test/thread1.test b/test/thread1.test
new file mode 100644
index 0000000000000000000000000000000000000000..0618f2c66f81cd4caa802b6d02f51fbdac3cdcfa
--- /dev/null
+++ b/test/thread1.test
@@ -0,0 +1,173 @@
+# 2003 December 18
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is multithreading behavior
+#
+# $Id: thread1.test,v 1.8 2008/10/07 15:25:49 drh Exp $
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Skip this whole file if the thread testing code is not enabled
+#
+if {[run_thread_tests]==0} { finish_test ; return }
+if {[llength [info command thread_step]]==0 || [sqlite3 -has-codec]} {
+  finish_test
+  return
+}
+
+# Create some data to work with
+#
+do_test thread1-1.1 {
+  execsql {
+    CREATE TABLE t1(a,b);
+    INSERT INTO t1 VALUES(1,'abcdefgh');
+    INSERT INTO t1 SELECT a+1, b||b FROM t1;
+    INSERT INTO t1 SELECT a+2, b||b FROM t1;
+    INSERT INTO t1 SELECT a+4, b||b FROM t1;
+    SELECT count(*), max(length(b)) FROM t1;
+  }
+} {8 64}
+
+# Interleave two threads on read access.  Then make sure a third
+# thread can write the database.  In other words:
+#
+#    read-lock A
+#    read-lock B
+#    unlock A
+#    unlock B
+#    write-lock C
+#
+# At one point, the write-lock of C would fail on Linux. 
+#
+do_test thread1-1.2 {
+  thread_create A test.db
+  thread_create B test.db
+  thread_create C test.db
+  thread_compile A {SELECT a FROM t1}
+  thread_step A
+  thread_result A
+} SQLITE_ROW
+do_test thread1-1.3 {
+  thread_argc A
+} 1
+do_test thread1-1.4 {
+  thread_argv A 0
+} 1
+do_test thread1-1.5 {
+  thread_compile B {SELECT b FROM t1}
+  thread_step B
+  thread_result B
+} SQLITE_ROW
+do_test thread1-1.6 {
+  thread_argc B
+} 1
+do_test thread1-1.7 {
+  thread_argv B 0
+} abcdefgh
+do_test thread1-1.8 {
+  thread_finalize A
+  thread_result A
+} SQLITE_OK
+do_test thread1-1.9 {
+  thread_finalize B
+  thread_result B
+} SQLITE_OK
+do_test thread1-1.10 {
+  thread_compile C {CREATE TABLE t2(x,y)}
+  thread_step C
+  thread_result C
+} SQLITE_DONE
+do_test thread1-1.11 {
+  thread_finalize C
+  thread_result C
+} SQLITE_OK
+do_test thread1-1.12 {
+  catchsql {SELECT name FROM sqlite_master}
+  execsql {SELECT name FROM sqlite_master}
+} {t1 t2}
+
+
+#
+# The following tests - thread1-2.* - test the following scenario:
+#
+# 1:  Read-lock thread A
+# 2:  Read-lock thread B
+# 3:  Attempt to write in thread C -> SQLITE_BUSY
+# 4:  Check db write failed from main thread.
+# 5:  Unlock from thread A.
+# 6:  Attempt to write in thread C -> SQLITE_BUSY
+# 7:  Check db write failed from main thread.
+# 8:  Unlock from thread B.
+# 9:  Attempt to write in thread C -> SQLITE_DONE
+# 10: Finalize the write from thread C
+# 11: Check db write succeeded from main thread.
+#
+do_test thread1-2.1 {
+  thread_halt *
+  thread_create A test.db
+  thread_compile A {SELECT a FROM t1}
+  thread_step A
+  thread_result A
+} SQLITE_ROW
+do_test thread1-2.2 {
+  thread_create B test.db
+  thread_compile B {SELECT b FROM t1}
+  thread_step B
+  thread_result B
+} SQLITE_ROW
+do_test thread1-2.3 {
+  thread_create C test.db
+  thread_compile C {INSERT INTO t2 VALUES(98,99)}
+  thread_step C
+  thread_result C
+  thread_finalize C
+  thread_result C
+} SQLITE_BUSY
+
+do_test thread1-2.4 {
+  execsql {SELECT * FROM t2}
+} {}
+
+do_test thread1-2.5 {
+  thread_finalize A
+  thread_result A
+} SQLITE_OK
+do_test thread1-2.6 {
+  thread_compile C {INSERT INTO t2 VALUES(98,99)}
+  thread_step C
+  thread_result C
+  thread_finalize C
+  thread_result C
+} SQLITE_BUSY
+do_test thread1-2.7 {
+  execsql {SELECT * FROM t2}
+} {}
+do_test thread1-2.8 {
+  thread_finalize B
+  thread_result B
+} SQLITE_OK
+do_test thread1-2.9 {
+  thread_compile C {INSERT INTO t2 VALUES(98,99)}
+  thread_step C
+  thread_result C
+} SQLITE_DONE
+do_test thread1-2.10 {
+  thread_finalize C
+  thread_result C
+} SQLITE_OK
+do_test thread1-2.11 {
+  execsql {SELECT * FROM t2}
+} {98 99}
+
+thread_halt *   
+finish_test
diff --git a/test/thread2.test b/test/thread2.test
new file mode 100644
index 0000000000000000000000000000000000000000..dad2bf2c5f4b1881af82362c11818b8093e9f762
--- /dev/null
+++ b/test/thread2.test
@@ -0,0 +1,120 @@
+# 2006 January 14
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is multithreading behavior
+#
+# $Id: thread2.test,v 1.3 2008/10/07 15:25:49 drh Exp $
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+if {[run_thread_tests]==0} { finish_test ; return }
+
+# Skip this whole file if the thread testing code is not enabled
+#
+if {[llength [info command thread_step]]==0 || [sqlite3 -has-codec]} {
+  finish_test
+  return
+}
+
+# Create some data to work with
+#
+do_test thread1-1.1 {
+  execsql {
+    CREATE TABLE t1(a,b);
+    INSERT INTO t1 VALUES(1,'abcdefgh');
+    INSERT INTO t1 SELECT a+1, b||b FROM t1;
+    INSERT INTO t1 SELECT a+2, b||b FROM t1;
+    INSERT INTO t1 SELECT a+4, b||b FROM t1;
+    SELECT count(*), max(length(b)) FROM t1;
+  }
+} {8 64}
+
+# Use the thread_swap command to move the database connections between
+# threads, then verify that they still work.
+#
+do_test thread2-1.2 {
+  db close
+  thread_create A test.db
+  thread_create B test.db
+  thread_swap A B
+  thread_compile A {SELECT a FROM t1 LIMIT 1}
+  thread_result A
+} {SQLITE_OK}
+do_test thread2-1.3 {
+  thread_step A
+  thread_result A
+} {SQLITE_ROW}
+do_test thread2-1.4 {
+  thread_argv A 0
+} {1}
+do_test thread2-1.5 {
+  thread_finalize A
+  thread_result A
+} {SQLITE_OK}
+do_test thread2-1.6 {
+  thread_compile B {SELECT a FROM t1 LIMIT 1}
+  thread_result B
+} {SQLITE_OK}
+do_test thread2-1.7 {
+  thread_step B
+  thread_result B
+} {SQLITE_ROW}
+do_test thread2-1.8 {
+  thread_argv B 0
+} {1}
+do_test thread2-1.9 {
+  thread_finalize B
+  thread_result B
+} {SQLITE_OK}
+
+# Swap them again.
+#
+do_test thread2-2.2 {
+  thread_swap A B
+  thread_compile A {SELECT a FROM t1 LIMIT 1}
+  thread_result A
+} {SQLITE_OK}
+do_test thread2-2.3 {
+  thread_step A
+  thread_result A
+} {SQLITE_ROW}
+do_test thread2-2.4 {
+  thread_argv A 0
+} {1}
+do_test thread2-2.5 {
+  thread_finalize A
+  thread_result A
+} {SQLITE_OK}
+do_test thread2-2.6 {
+  thread_compile B {SELECT a FROM t1 LIMIT 1}
+  thread_result B
+} {SQLITE_OK}
+do_test thread2-2.7 {
+  thread_step B
+  thread_result B
+} {SQLITE_ROW}
+do_test thread2-2.8 {
+  thread_argv B 0
+} {1}
+do_test thread2-2.9 {
+  thread_finalize B
+  thread_result B
+} {SQLITE_OK}
+thread_halt A
+thread_halt B
+
+# Also important to halt the worker threads, which are using spin
+# locks and eating away CPU cycles.
+#
+thread_halt *   
+finish_test
diff --git a/test/thread3.test b/test/thread3.test
new file mode 100644
index 0000000000000000000000000000000000000000..79a75bdbb7e53babb3fd2db665e1155df661deb9
--- /dev/null
+++ b/test/thread3.test
@@ -0,0 +1,77 @@
+# 2023 May 13
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+if {[run_thread_tests]==0} { finish_test ; return }
+
+set testprefix thread3
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b);
+  PRAGMA journal_mode = DELETE;
+} {delete}
+
+proc wait_for_var {varname} {
+  if {0==[uplevel [list info exists $varname]]} {
+    uplevel [list vwait $varname]
+  }
+  uplevel [list set $varname]
+}
+
+set nAttempt 250
+
+do_test 1.1 {
+  for {set i 0} {$i < $nAttempt} {incr i} {
+    unset -nocomplain X
+    unset -nocomplain Y
+
+    sqlthread spawn X {
+      sqlite3 dbI test.db
+      dbI timeout 100
+      set rc 1
+      set nBusy 0
+      while {$rc} {
+        set rc [catch {
+          dbI eval { INSERT INTO t1 VALUES(203, 'message') RETURNING a; }
+        } msg]
+        if {$rc} { incr nBusy }
+      }
+      dbI close
+      set nBusy
+    }
+
+    sqlthread spawn Y {
+      sqlite3 dbR test.db
+      catch {
+        dbR eval { SELECT count(*) FROM t1 }
+      } msg
+      dbR close
+      set msg
+    }
+
+    wait_for_var X
+    wait_for_var Y
+    incr nTotalBusy $X
+  }
+
+  execsql { SELECT count(*) FROM t1 }
+  set {} {}
+} {}
+
+do_execsql_test "1.Total BUSY errors: $nTotalBusy .2" {
+  SELECT count(*) FROM t1;
+} $nAttempt
+
+finish_test
diff --git a/test/thread_common.tcl b/test/thread_common.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..1ebc6573a93420e1f56e7b1f129214a6032c0ef8
--- /dev/null
+++ b/test/thread_common.tcl
@@ -0,0 +1,109 @@
+# 2007 September 10
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# $Id: thread_common.tcl,v 1.5 2009/03/26 14:48:07 danielk1977 Exp $
+
+if {[info exists ::thread_procs]} {
+  return 0
+}
+
+# The following script is sourced by every thread spawned using 
+# [sqlthread spawn]:
+set thread_procs {
+
+  # Execute the supplied SQL using database handle $::DB.
+  #
+  proc execsql {sql} {
+
+    set rc SQLITE_LOCKED
+    while {$rc eq "SQLITE_LOCKED" 
+        || $rc eq "SQLITE_BUSY" 
+        || $rc eq "SQLITE_SCHEMA"} {
+      set res [list]
+
+      enter_db_mutex $::DB
+      set err [catch {
+        set ::STMT [sqlite3_prepare_v2 $::DB $sql -1 dummy_tail]
+      } msg]
+
+      if {$err == 0} {
+        while {[set rc [sqlite3_step $::STMT]] eq "SQLITE_ROW"} {
+          for {set i 0} {$i < [sqlite3_column_count $::STMT]} {incr i} {
+            lappend res [sqlite3_column_text $::STMT 0]
+          }
+        }
+        set rc [sqlite3_finalize $::STMT]
+      } else {
+        if {[lindex $msg 0]=="(6)"} {
+          set rc SQLITE_LOCKED
+        } else {
+          set rc SQLITE_ERROR
+        }
+      }
+
+      if {[string first locked [sqlite3_errmsg $::DB]]>=0} {
+        set rc SQLITE_LOCKED
+      }
+      if {$rc ne "SQLITE_OK"} {
+        set errtxt "$rc - [sqlite3_errmsg $::DB] (debug1)"
+      }
+      leave_db_mutex $::DB
+
+      if {$rc eq "SQLITE_LOCKED" || $rc eq "SQLITE_BUSY"} {
+        #sqlthread parent "puts \"thread [sqlthread id] is busy.  rc=$rc\""
+        after 200
+      } else {
+        #sqlthread parent "puts \"thread [sqlthread id] ran $sql\""
+      }
+    }
+
+    if {$rc ne "SQLITE_OK"} {
+      error $errtxt
+    }
+    set res
+  }
+
+  proc do_test {name script result} {
+    set res [eval $script]
+    if {$res ne $result} {
+      error "$name failed: expected \"$result\" got \"$res\""
+    }
+  }
+}
+
+proc thread_spawn {varname args} {
+  sqlthread spawn $varname [join $args {;}]
+}
+
+# Return true if this build can run the multi-threaded tests.
+#
+proc run_thread_tests {{print_warning 0}} {
+  ifcapable !mutex { 
+    set zProblem "SQLite build is not threadsafe"
+  }
+  ifcapable mutex_noop { 
+    set zProblem "SQLite build uses SQLITE_MUTEX_NOOP"
+  }
+  if {[info commands sqlthread] eq ""} {
+    set zProblem "SQLite build is not threadsafe"
+  }
+  if {![tcl::pkgconfig get threaded]} {
+    set zProblem "Linked against a non-threadsafe Tcl build"
+  }
+  if {[info exists zProblem]} {
+    puts "WARNING: Multi-threaded tests skipped: $zProblem"
+    return 0
+  }
+  set ::run_thread_tests_called 1
+  return 1;
+}
+
+return 0
diff --git a/test/threadtest1.c b/test/threadtest1.c
new file mode 100644
index 0000000000000000000000000000000000000000..56fcce33e8a1cb8290ecc6cd5a43697b4a6b2e67
--- /dev/null
+++ b/test/threadtest1.c
@@ -0,0 +1,289 @@
+/*
+** 2002 January 15
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file implements a simple standalone program used to test whether
+** or not the SQLite library is threadsafe.
+**
+** Testing the thread safety of SQLite is difficult because there are very
+** few places in the code that are even potentially unsafe, and those
+** places execute for very short periods of time.  So even if the library
+** is compiled with its mutexes disabled, it is likely to work correctly
+** in a multi-threaded program most of the time.  
+**
+** This file is NOT part of the standard SQLite library.  It is used for
+** testing only.
+*/
+#include "sqlite.h"
+#include <pthread.h>
+#include <sched.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+/*
+** Enable for tracing
+*/
+static int verbose = 0;
+
+/*
+** Come here to die.
+*/
+static void Exit(int rc){
+  exit(rc);
+}
+
+extern char *sqlite3_mprintf(const char *zFormat, ...);
+extern char *sqlite3_vmprintf(const char *zFormat, va_list);
+
+/*
+** When a lock occurs, yield.
+*/
+static int db_is_locked(void *NotUsed, int iCount){
+  /* sched_yield(); */
+  if( verbose ) printf("BUSY %s #%d\n", (char*)NotUsed, iCount);
+  usleep(100);
+  return iCount<25;
+}
+
+/*
+** Used to accumulate query results by db_query()
+*/
+struct QueryResult {
+  const char *zFile;  /* Filename - used for error reporting */
+  int nElem;          /* Number of used entries in azElem[] */
+  int nAlloc;         /* Number of slots allocated for azElem[] */
+  char **azElem;      /* The result of the query */
+};
+
+/*
+** The callback function for db_query
+*/
+static int db_query_callback(
+  void *pUser,     /* Pointer to the QueryResult structure */
+  int nArg,        /* Number of columns in this result row */
+  char **azArg,    /* Text of data in all columns */
+  char **NotUsed   /* Names of the columns */
+){
+  struct QueryResult *pResult = (struct QueryResult*)pUser;
+  int i;
+  if( pResult->nElem + nArg >= pResult->nAlloc ){
+    if( pResult->nAlloc==0 ){
+      pResult->nAlloc = nArg+1;
+    }else{
+      pResult->nAlloc = pResult->nAlloc*2 + nArg + 1;
+    }
+    pResult->azElem = realloc( pResult->azElem, pResult->nAlloc*sizeof(char*));
+    if( pResult->azElem==0 ){
+      fprintf(stdout,"%s: malloc failed\n", pResult->zFile);
+      return 1;
+    }
+  }
+  if( azArg==0 ) return 0;
+  for(i=0; i<nArg; i++){
+    pResult->azElem[pResult->nElem++] =
+        sqlite3_mprintf("%s",azArg[i] ? azArg[i] : ""); 
+  }
+  return 0;
+}
+
+/*
+** Execute a query against the database.  NULL values are returned
+** as an empty string.  The list is terminated by a single NULL pointer.
+*/
+char **db_query(sqlite *db, const char *zFile, const char *zFormat, ...){
+  char *zSql;
+  int rc;
+  char *zErrMsg = 0;
+  va_list ap;
+  struct QueryResult sResult;
+  va_start(ap, zFormat);
+  zSql = sqlite3_vmprintf(zFormat, ap);
+  va_end(ap);
+  memset(&sResult, 0, sizeof(sResult));
+  sResult.zFile = zFile;
+  if( verbose ) printf("QUERY %s: %s\n", zFile, zSql);
+  rc = sqlite3_exec(db, zSql, db_query_callback, &sResult, &zErrMsg);
+  if( rc==SQLITE_SCHEMA ){
+    if( zErrMsg ) free(zErrMsg);
+    rc = sqlite3_exec(db, zSql, db_query_callback, &sResult, &zErrMsg);
+  }
+  if( verbose ) printf("DONE %s %s\n", zFile, zSql);
+  if( zErrMsg ){
+    fprintf(stdout,"%s: query failed: %s - %s\n", zFile, zSql, zErrMsg);
+    free(zErrMsg);
+    free(zSql);
+    Exit(1);
+  }
+  sqlite3_free(zSql);
+  if( sResult.azElem==0 ){
+    db_query_callback(&sResult, 0, 0, 0);
+  }
+  sResult.azElem[sResult.nElem] = 0;
+  return sResult.azElem;
+}
+
+/*
+** Execute an SQL statement.
+*/
+void db_execute(sqlite *db, const char *zFile, const char *zFormat, ...){
+  char *zSql;
+  int rc;
+  char *zErrMsg = 0;
+  va_list ap;
+  va_start(ap, zFormat);
+  zSql = sqlite3_vmprintf(zFormat, ap);
+  va_end(ap);
+  if( verbose ) printf("EXEC %s: %s\n", zFile, zSql);
+  do{
+    rc = sqlite3_exec(db, zSql, 0, 0, &zErrMsg);
+  }while( rc==SQLITE_BUSY );
+  if( verbose ) printf("DONE %s: %s\n", zFile, zSql);
+  if( zErrMsg ){
+    fprintf(stdout,"%s: command failed: %s - %s\n", zFile, zSql, zErrMsg);
+    free(zErrMsg);
+    sqlite3_free(zSql);
+    Exit(1);
+  }
+  sqlite3_free(zSql);
+}
+
+/*
+** Free the results of a db_query() call.
+*/
+void db_query_free(char **az){
+  int i;
+  for(i=0; az[i]; i++){
+    sqlite3_free(az[i]);
+  }
+  free(az);
+}
+
+/*
+** Check results
+*/
+void db_check(const char *zFile, const char *zMsg, char **az, ...){
+  va_list ap;
+  int i;
+  char *z;
+  va_start(ap, az);
+  for(i=0; (z = va_arg(ap, char*))!=0; i++){
+    if( az[i]==0 || strcmp(az[i],z)!=0 ){
+      fprintf(stdout,"%s: %s: bad result in column %d: %s\n",
+        zFile, zMsg, i+1, az[i]);
+      db_query_free(az);
+      Exit(1);
+    }
+  }
+  va_end(ap);
+  db_query_free(az);
+}
+
+pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
+pthread_cond_t sig = PTHREAD_COND_INITIALIZER;
+int thread_cnt = 0;
+
+static void *worker_bee(void *pArg){
+  const char *zFilename = (char*)pArg;
+  char *azErr;
+  int i, cnt;
+  int t = atoi(zFilename);
+  char **az;
+  sqlite *db;
+
+  pthread_mutex_lock(&lock);
+  thread_cnt++;
+  pthread_mutex_unlock(&lock);
+  printf("%s: START\n", zFilename);
+  fflush(stdout);
+  for(cnt=0; cnt<10; cnt++){
+    sqlite3_open(&zFilename[2], &db);
+    if( db==0 ){
+      fprintf(stdout,"%s: can't open\n", zFilename);
+      Exit(1);
+    }
+    sqlite3_busy_handler(db, db_is_locked, zFilename);
+    db_execute(db, zFilename, "CREATE TABLE t%d(a,b,c);", t);
+    for(i=1; i<=100; i++){
+      db_execute(db, zFilename, "INSERT INTO t%d VALUES(%d,%d,%d);",
+         t, i, i*2, i*i);
+    }
+    az = db_query(db, zFilename, "SELECT count(*) FROM t%d", t);
+    db_check(zFilename, "tX size", az, "100", 0);  
+    az = db_query(db, zFilename, "SELECT avg(b) FROM t%d", t);
+    db_check(zFilename, "tX avg", az, "101", 0);  
+    db_execute(db, zFilename, "DELETE FROM t%d WHERE a>50", t);
+    az = db_query(db, zFilename, "SELECT avg(b) FROM t%d", t);
+    db_check(zFilename, "tX avg2", az, "51", 0);
+    for(i=1; i<=50; i++){
+      char z1[30], z2[30];
+      az = db_query(db, zFilename, "SELECT b, c FROM t%d WHERE a=%d", t, i);
+      sprintf(z1, "%d", i*2);
+      sprintf(z2, "%d", i*i);
+      db_check(zFilename, "readback", az, z1, z2, 0);
+    }
+    db_execute(db, zFilename, "DROP TABLE t%d;", t);
+    sqlite3_close(db);
+  }
+  printf("%s: END\n", zFilename);
+  /* unlink(zFilename); */
+  fflush(stdout);
+  pthread_mutex_lock(&lock);
+  thread_cnt--;
+  if( thread_cnt<=0 ){
+    pthread_cond_signal(&sig);
+  }
+  pthread_mutex_unlock(&lock);
+  return 0;
+}
+
+int main(int argc, char **argv){
+  char *zFile;
+  int i, n;
+  pthread_t id;
+  if( argc>2 && strcmp(argv[1], "-v")==0 ){
+    verbose = 1;
+    argc--;
+    argv++;
+  }
+  if( argc<2 || (n=atoi(argv[1]))<1 ) n = 10;
+  for(i=0; i<n; i++){
+    char zBuf[200];
+    sprintf(zBuf, "testdb-%d", (i+1)/2);
+    unlink(zBuf);
+  }
+  for(i=0; i<n; i++){
+    zFile = sqlite3_mprintf("%d.testdb-%d", i%2+1, (i+2)/2);
+    if( (i%2)==0 ){
+      /* Remove both the database file and any old journal for the file
+      ** being used by this thread and the next one. */
+      char *zDb = &zFile[2];
+      char *zJournal = sqlite3_mprintf("%s-journal", zDb);
+      unlink(zDb);
+      unlink(zJournal);
+      free(zJournal);
+    }
+      
+    pthread_create(&id, 0, worker_bee, (void*)zFile);
+    pthread_detach(id);
+  }
+  pthread_mutex_lock(&lock);
+  while( thread_cnt>0 ){
+    pthread_cond_wait(&sig, &lock);
+  }
+  pthread_mutex_unlock(&lock);
+  for(i=0; i<n; i++){
+    char zBuf[200];
+    sprintf(zBuf, "testdb-%d", (i+1)/2);
+    unlink(zBuf);
+  }
+  return 0;
+}
diff --git a/test/threadtest2.c b/test/threadtest2.c
new file mode 100644
index 0000000000000000000000000000000000000000..b7a67c579b6ea3d5f53aa48d73e43b1ac5023c4e
--- /dev/null
+++ b/test/threadtest2.c
@@ -0,0 +1,133 @@
+/*
+** 2004 January 13
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file implements a simple standalone program used to test whether
+** or not the SQLite library is threadsafe.
+**
+** This file is NOT part of the standard SQLite library.  It is used for
+** testing only.
+*/
+#include <stdio.h>
+#include <unistd.h>
+#include <pthread.h>
+#include <string.h>
+#include <stdlib.h>
+#include "sqlite.h"
+
+/*
+** Name of the database
+*/
+#define DB_FILE "test.db"
+
+/* 
+** When this variable becomes non-zero, all threads stop
+** what they are doing.
+*/
+volatile int all_stop = 0;
+
+/* 
+** Callback from the integrity check.  If the result is anything other
+** than "ok" it means the integrity check has failed.  Set the "all_stop"
+** global variable to stop all other activity.  Print the error message
+** or print OK if the string "ok" is seen.
+*/
+int check_callback(void *pid, int argc, char **argv, char **notUsed2){
+  int id = (int)pid;
+  if( strcmp(argv[0],"ok") ){
+    all_stop = 1;
+    fprintf(stderr,"%d: %s\n", id, argv[0]);
+  }else{
+    /* fprintf(stderr,"%d: OK\n", id); */
+  }
+  return 0;
+}
+
+/*
+** Do an integrity check on the database.  If the first integrity check
+** fails, try it a second time.
+*/
+int integrity_check(sqlite *db, int id){
+  int rc;
+  if( all_stop ) return 0;
+  /* fprintf(stderr,"%d: CHECK\n", id); */
+  rc = sqlite3_exec(db, "pragma integrity_check", check_callback, 0, 0);
+  if( rc!=SQLITE_OK && rc!=SQLITE_BUSY ){
+    fprintf(stderr,"%d, Integrity check returns %d\n", id, rc);
+  }
+  if( all_stop ){
+    sqlite3_exec(db, "pragma integrity_check", check_callback, 0, 0);
+  }
+  return 0;
+}
+
+/*
+** This is the worker thread
+*/
+void *worker(void *workerArg){
+  sqlite *db;
+  int id = (int)workerArg;
+  int rc;
+  int cnt = 0;
+  fprintf(stderr, "Starting worker %d\n", id);
+  while( !all_stop && cnt++<10000 ){
+    if( cnt%100==0 ) printf("%d: %d\n", id, cnt);
+    while( (sqlite3_open(DB_FILE, &db))!=SQLITE_OK ) sched_yield();
+    sqlite3_exec(db, "PRAGMA synchronous=OFF", 0, 0, 0);
+    /* integrity_check(db, id); */
+    if( all_stop ){ sqlite3_close(db); break; }
+    /* fprintf(stderr, "%d: BEGIN\n", id); */
+    rc = sqlite3_exec(db, "INSERT INTO t1 VALUES('bogus data')", 0, 0, 0);
+    /* fprintf(stderr, "%d: END rc=%d\n", id, rc); */
+    sqlite3_close(db);
+  }
+  fprintf(stderr, "Worker %d finished\n", id);
+  return 0;
+}
+
+/*
+** Initialize the database and start the threads
+*/
+int main(int argc, char **argv){
+  sqlite *db;
+  int i, rc;
+  pthread_t aThread[5];
+
+  if( strcmp(DB_FILE,":memory:") ){
+    char *zJournal = sqlite3_mprintf("%s-journal", DB_FILE);
+    unlink(DB_FILE);
+    unlink(zJournal);
+    sqlite3_free(zJournal);
+  }  
+  sqlite3_open(DB_FILE, &db);
+  if( db==0 ){
+    fprintf(stderr,"unable to initialize database\n");
+    exit(1);
+  }
+  rc = sqlite3_exec(db, "CREATE TABLE t1(x);", 0,0,0);
+  if( rc ){
+    fprintf(stderr,"cannot create table t1: %d\n", rc);
+    exit(1);
+  }
+  sqlite3_close(db);
+  for(i=0; i<sizeof(aThread)/sizeof(aThread[0]); i++){
+    pthread_create(&aThread[i], 0, worker, (void*)i);
+  }
+  for(i=0; i<sizeof(aThread)/sizeof(aThread[i]); i++){
+    pthread_join(aThread[i], 0);
+  }
+  if( !all_stop ){
+    printf("Everything seems ok.\n");
+    return 0;
+  }else{
+    printf("We hit an error.\n");
+    return 1;
+  }
+}
diff --git a/test/threadtest3.c b/test/threadtest3.c
new file mode 100644
index 0000000000000000000000000000000000000000..3a12c5889b308c5796cffd3d9777b7d76055dd48
--- /dev/null
+++ b/test/threadtest3.c
@@ -0,0 +1,1584 @@
+/*
+** 2010-07-22
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** The code in this file runs a few multi-threaded test cases using the
+** SQLite library. It can be compiled to an executable on unix using the
+** following command:
+**
+**   gcc -O2 threadtest3.c sqlite3.c -ldl -lpthread -lm
+**
+** Even though threadtest3.c is the only C source code file mentioned on
+** the compiler command-line, #include macros are used to pull in additional
+** C code files named "tt3_*.c".
+**
+** After compiling, run this program with an optional argument telling
+** which test to run.  All tests are run if no argument is given.  The
+** argument can be a glob pattern to match multiple tests.  Examples:
+**
+**        ./a.out                 -- Run all tests
+**        ./a.out walthread3      -- Run the "walthread3" test
+**        ./a.out 'wal*'          -- Run all of the wal* tests
+**        ./a.out --help          -- List all available tests
+**
+** The exit status is non-zero if any test fails.
+*/
+
+/* 
+** The "Set Error Line" macro.
+*/
+#define SEL(e) ((e)->iLine = ((e)->rc ? (e)->iLine : __LINE__))
+
+/* Database functions */
+#define opendb(w,x,y,z)         (SEL(w), opendb_x(w,x,y,z))
+#define closedb(y,z)            (SEL(y), closedb_x(y,z))
+
+/* Functions to execute SQL */
+#define sql_script(x,y,z)       (SEL(x), sql_script_x(x,y,z))
+#define integrity_check(x,y)    (SEL(x), integrity_check_x(x,y))
+#define execsql_i64(x,y,...)    (SEL(x), execsql_i64_x(x,y,__VA_ARGS__))
+#define execsql_text(x,y,z,...) (SEL(x), execsql_text_x(x,y,z,__VA_ARGS__))
+#define execsql(x,y,...)        (SEL(x), (void)execsql_i64_x(x,y,__VA_ARGS__))
+#define sql_script_printf(x,y,z,...) (                \
+    SEL(x), sql_script_printf_x(x,y,z,__VA_ARGS__)    \
+) 
+
+/* Thread functions */
+#define launch_thread(w,x,y,z)     (SEL(w), launch_thread_x(w,x,y,z))
+#define join_all_threads(y,z)      (SEL(y), join_all_threads_x(y,z))
+
+/* Timer functions */
+#define setstoptime(y,z)        (SEL(y), setstoptime_x(y,z))
+#define timetostop(z)           (SEL(z), timetostop_x(z))
+
+/* Report/clear errors. */
+#define test_error(z, ...)      test_error_x(z, sqlite3_mprintf(__VA_ARGS__))
+#define clear_error(y,z)        clear_error_x(y, z)
+
+/* File-system operations */
+#define filesize(y,z)           (SEL(y), filesize_x(y,z))
+#define filecopy(x,y,z)         (SEL(x), filecopy_x(x,y,z))
+
+#define PTR2INT(x) ((int)((intptr_t)x))
+#define INT2PTR(x) ((void*)((intptr_t)x))
+
+/*
+** End of test code/infrastructure interface macros.
+*************************************************************************/
+
+
+
+
+#include <sqlite3.h>
+
+#ifdef _WIN32
+# include <stdio.h>
+# include <string.h>
+# include <assert.h>
+# include <process.h>
+# include <windows.h>
+# include <sys/types.h> 
+# include <sys/stat.h> 
+# include <errno.h>
+# include <fcntl.h>
+# include <io.h>
+#else
+# include <unistd.h>
+# include <stdio.h>
+# include <pthread.h>
+# include <assert.h>
+# include <sys/types.h> 
+# include <sys/stat.h> 
+# include <string.h>
+# include <fcntl.h>
+# include <errno.h>
+
+# define O_BINARY 0
+#endif
+
+#include "test_multiplex.h"
+
+/* Required to link test_multiplex.c */
+#ifndef SQLITE_OMIT_WSD
+int sqlite3PendingByte = 0x40000000;
+#endif
+
+/*
+ * This code implements the MD5 message-digest algorithm.
+ * The algorithm is due to Ron Rivest.  This code was
+ * written by Colin Plumb in 1993, no copyright is claimed.
+ * This code is in the public domain; do with it what you wish.
+ *
+ * Equivalent code is available from RSA Data Security, Inc.
+ * This code has been tested against that, and is equivalent,
+ * except that you don't need to include two pages of legalese
+ * with every copy.
+ *
+ * To compute the message digest of a chunk of bytes, declare an
+ * MD5Context structure, pass it to MD5Init, call MD5Update as
+ * needed on buffers full of bytes, and then call MD5Final, which
+ * will fill a supplied 16-byte array with the digest.
+ */
+
+/*
+ * If compiled on a machine that doesn't have a 32-bit integer,
+ * you just set "uint32" to the appropriate datatype for an
+ * unsigned 32-bit integer.  For example:
+ *
+ *       cc -Duint32='unsigned long' md5.c
+ *
+ */
+#ifndef uint32
+#  define uint32 unsigned int
+#endif
+
+struct MD5Context {
+  int isInit;
+  uint32 buf[4];
+  uint32 bits[2];
+  union {
+    unsigned char in[64];
+    uint32 in32[16];
+  } u;
+};
+typedef struct MD5Context MD5Context;
+
+/*
+ * Note: this code is harmless on little-endian machines.
+ */
+static void byteReverse (unsigned char *buf, unsigned longs){
+  uint32 t;
+  do {
+    t = (uint32)((unsigned)buf[3]<<8 | buf[2]) << 16 |
+          ((unsigned)buf[1]<<8 | buf[0]);
+    *(uint32 *)buf = t;
+    buf += 4;
+  } while (--longs);
+}
+/* The four core functions - F1 is optimized somewhat */
+
+/* #define F1(x, y, z) (x & y | ~x & z) */
+#define F1(x, y, z) (z ^ (x & (y ^ z)))
+#define F2(x, y, z) F1(z, x, y)
+#define F3(x, y, z) (x ^ y ^ z)
+#define F4(x, y, z) (y ^ (x | ~z))
+
+/* This is the central step in the MD5 algorithm. */
+#define MD5STEP(f, w, x, y, z, data, s) \
+  ( w += f(x, y, z) + data,  w = w<<s | w>>(32-s),  w += x )
+
+/*
+ * The core of the MD5 algorithm, this alters an existing MD5 hash to
+ * reflect the addition of 16 longwords of new data.  MD5Update blocks
+ * the data and converts bytes into longwords for this routine.
+ */
+static void MD5Transform(uint32 buf[4], const uint32 in[16]){
+  register uint32 a, b, c, d;
+
+  a = buf[0];
+  b = buf[1];
+  c = buf[2];
+  d = buf[3];
+
+  MD5STEP(F1, a, b, c, d, in[ 0]+0xd76aa478,  7);
+  MD5STEP(F1, d, a, b, c, in[ 1]+0xe8c7b756, 12);
+  MD5STEP(F1, c, d, a, b, in[ 2]+0x242070db, 17);
+  MD5STEP(F1, b, c, d, a, in[ 3]+0xc1bdceee, 22);
+  MD5STEP(F1, a, b, c, d, in[ 4]+0xf57c0faf,  7);
+  MD5STEP(F1, d, a, b, c, in[ 5]+0x4787c62a, 12);
+  MD5STEP(F1, c, d, a, b, in[ 6]+0xa8304613, 17);
+  MD5STEP(F1, b, c, d, a, in[ 7]+0xfd469501, 22);
+  MD5STEP(F1, a, b, c, d, in[ 8]+0x698098d8,  7);
+  MD5STEP(F1, d, a, b, c, in[ 9]+0x8b44f7af, 12);
+  MD5STEP(F1, c, d, a, b, in[10]+0xffff5bb1, 17);
+  MD5STEP(F1, b, c, d, a, in[11]+0x895cd7be, 22);
+  MD5STEP(F1, a, b, c, d, in[12]+0x6b901122,  7);
+  MD5STEP(F1, d, a, b, c, in[13]+0xfd987193, 12);
+  MD5STEP(F1, c, d, a, b, in[14]+0xa679438e, 17);
+  MD5STEP(F1, b, c, d, a, in[15]+0x49b40821, 22);
+
+  MD5STEP(F2, a, b, c, d, in[ 1]+0xf61e2562,  5);
+  MD5STEP(F2, d, a, b, c, in[ 6]+0xc040b340,  9);
+  MD5STEP(F2, c, d, a, b, in[11]+0x265e5a51, 14);
+  MD5STEP(F2, b, c, d, a, in[ 0]+0xe9b6c7aa, 20);
+  MD5STEP(F2, a, b, c, d, in[ 5]+0xd62f105d,  5);
+  MD5STEP(F2, d, a, b, c, in[10]+0x02441453,  9);
+  MD5STEP(F2, c, d, a, b, in[15]+0xd8a1e681, 14);
+  MD5STEP(F2, b, c, d, a, in[ 4]+0xe7d3fbc8, 20);
+  MD5STEP(F2, a, b, c, d, in[ 9]+0x21e1cde6,  5);
+  MD5STEP(F2, d, a, b, c, in[14]+0xc33707d6,  9);
+  MD5STEP(F2, c, d, a, b, in[ 3]+0xf4d50d87, 14);
+  MD5STEP(F2, b, c, d, a, in[ 8]+0x455a14ed, 20);
+  MD5STEP(F2, a, b, c, d, in[13]+0xa9e3e905,  5);
+  MD5STEP(F2, d, a, b, c, in[ 2]+0xfcefa3f8,  9);
+  MD5STEP(F2, c, d, a, b, in[ 7]+0x676f02d9, 14);
+  MD5STEP(F2, b, c, d, a, in[12]+0x8d2a4c8a, 20);
+
+  MD5STEP(F3, a, b, c, d, in[ 5]+0xfffa3942,  4);
+  MD5STEP(F3, d, a, b, c, in[ 8]+0x8771f681, 11);
+  MD5STEP(F3, c, d, a, b, in[11]+0x6d9d6122, 16);
+  MD5STEP(F3, b, c, d, a, in[14]+0xfde5380c, 23);
+  MD5STEP(F3, a, b, c, d, in[ 1]+0xa4beea44,  4);
+  MD5STEP(F3, d, a, b, c, in[ 4]+0x4bdecfa9, 11);
+  MD5STEP(F3, c, d, a, b, in[ 7]+0xf6bb4b60, 16);
+  MD5STEP(F3, b, c, d, a, in[10]+0xbebfbc70, 23);
+  MD5STEP(F3, a, b, c, d, in[13]+0x289b7ec6,  4);
+  MD5STEP(F3, d, a, b, c, in[ 0]+0xeaa127fa, 11);
+  MD5STEP(F3, c, d, a, b, in[ 3]+0xd4ef3085, 16);
+  MD5STEP(F3, b, c, d, a, in[ 6]+0x04881d05, 23);
+  MD5STEP(F3, a, b, c, d, in[ 9]+0xd9d4d039,  4);
+  MD5STEP(F3, d, a, b, c, in[12]+0xe6db99e5, 11);
+  MD5STEP(F3, c, d, a, b, in[15]+0x1fa27cf8, 16);
+  MD5STEP(F3, b, c, d, a, in[ 2]+0xc4ac5665, 23);
+
+  MD5STEP(F4, a, b, c, d, in[ 0]+0xf4292244,  6);
+  MD5STEP(F4, d, a, b, c, in[ 7]+0x432aff97, 10);
+  MD5STEP(F4, c, d, a, b, in[14]+0xab9423a7, 15);
+  MD5STEP(F4, b, c, d, a, in[ 5]+0xfc93a039, 21);
+  MD5STEP(F4, a, b, c, d, in[12]+0x655b59c3,  6);
+  MD5STEP(F4, d, a, b, c, in[ 3]+0x8f0ccc92, 10);
+  MD5STEP(F4, c, d, a, b, in[10]+0xffeff47d, 15);
+  MD5STEP(F4, b, c, d, a, in[ 1]+0x85845dd1, 21);
+  MD5STEP(F4, a, b, c, d, in[ 8]+0x6fa87e4f,  6);
+  MD5STEP(F4, d, a, b, c, in[15]+0xfe2ce6e0, 10);
+  MD5STEP(F4, c, d, a, b, in[ 6]+0xa3014314, 15);
+  MD5STEP(F4, b, c, d, a, in[13]+0x4e0811a1, 21);
+  MD5STEP(F4, a, b, c, d, in[ 4]+0xf7537e82,  6);
+  MD5STEP(F4, d, a, b, c, in[11]+0xbd3af235, 10);
+  MD5STEP(F4, c, d, a, b, in[ 2]+0x2ad7d2bb, 15);
+  MD5STEP(F4, b, c, d, a, in[ 9]+0xeb86d391, 21);
+
+  buf[0] += a;
+  buf[1] += b;
+  buf[2] += c;
+  buf[3] += d;
+}
+
+/*
+ * Start MD5 accumulation.  Set bit count to 0 and buffer to mysterious
+ * initialization constants.
+ */
+static void MD5Init(MD5Context *ctx){
+  ctx->isInit = 1;
+  ctx->buf[0] = 0x67452301;
+  ctx->buf[1] = 0xefcdab89;
+  ctx->buf[2] = 0x98badcfe;
+  ctx->buf[3] = 0x10325476;
+  ctx->bits[0] = 0;
+  ctx->bits[1] = 0;
+}
+
+/*
+ * Update context to reflect the concatenation of another buffer full
+ * of bytes.
+ */
+static 
+void MD5Update(MD5Context *ctx, const unsigned char *buf, unsigned int len){
+  uint32 t;
+
+  /* Update bitcount */
+
+  t = ctx->bits[0];
+  if ((ctx->bits[0] = t + ((uint32)len << 3)) < t)
+    ctx->bits[1]++; /* Carry from low to high */
+  ctx->bits[1] += len >> 29;
+
+  t = (t >> 3) & 0x3f;    /* Bytes already in shsInfo->data */
+
+  /* Handle any leading odd-sized chunks */
+
+  if ( t ) {
+    unsigned char *p = (unsigned char *)ctx->u.in + t;
+
+    t = 64-t;
+    if (len < t) {
+      memcpy(p, buf, len);
+      return;
+    }
+    memcpy(p, buf, t);
+    byteReverse(ctx->u.in, 16);
+    MD5Transform(ctx->buf, (uint32 *)ctx->u.in);
+    buf += t;
+    len -= t;
+  }
+
+  /* Process data in 64-byte chunks */
+
+  while (len >= 64) {
+    memcpy(ctx->u.in, buf, 64);
+    byteReverse(ctx->u.in, 16);
+    MD5Transform(ctx->buf, (uint32 *)ctx->u.in);
+    buf += 64;
+    len -= 64;
+  }
+
+  /* Handle any remaining bytes of data. */
+
+  memcpy(ctx->u.in, buf, len);
+}
+
+/*
+ * Final wrapup - pad to 64-byte boundary with the bit pattern 
+ * 1 0* (64-bit count of bits processed, MSB-first)
+ */
+static void MD5Final(unsigned char digest[16], MD5Context *ctx){
+  unsigned count;
+  unsigned char *p;
+
+  /* Compute number of bytes mod 64 */
+  count = (ctx->bits[0] >> 3) & 0x3F;
+
+  /* Set the first char of padding to 0x80.  This is safe since there is
+     always at least one byte free */
+  p = ctx->u.in + count;
+  *p++ = 0x80;
+
+  /* Bytes of padding needed to make 64 bytes */
+  count = 64 - 1 - count;
+
+  /* Pad out to 56 mod 64 */
+  if (count < 8) {
+    /* Two lots of padding:  Pad the first block to 64 bytes */
+    memset(p, 0, count);
+    byteReverse(ctx->u.in, 16);
+    MD5Transform(ctx->buf, (uint32 *)ctx->u.in);
+
+    /* Now fill the next block with 56 bytes */
+    memset(ctx->u.in, 0, 56);
+  } else {
+    /* Pad block to 56 bytes */
+    memset(p, 0, count-8);
+  }
+  byteReverse(ctx->u.in, 14);
+
+  /* Append length in bits and transform */
+  ctx->u.in32[14] = ctx->bits[0];
+  ctx->u.in32[15] = ctx->bits[1];
+
+  MD5Transform(ctx->buf, (uint32 *)ctx->u.in);
+  byteReverse((unsigned char *)ctx->buf, 4);
+  memcpy(digest, ctx->buf, 16);
+  memset(ctx, 0, sizeof(*ctx));    /* In case it is sensitive */
+}
+
+/*
+** Convert a 128-bit MD5 digest into a 32-digit base-16 number.
+*/
+static void MD5DigestToBase16(unsigned char *digest, char *zBuf){
+  static char const zEncode[] = "0123456789abcdef";
+  int i, j;
+
+  for(j=i=0; i<16; i++){
+    int a = digest[i];
+    zBuf[j++] = zEncode[(a>>4)&0xf];
+    zBuf[j++] = zEncode[a & 0xf];
+  }
+  zBuf[j] = 0;
+}
+
+/*
+** During testing, the special md5sum() aggregate function is available.
+** inside SQLite.  The following routines implement that function.
+*/
+static void md5step(sqlite3_context *context, int argc, sqlite3_value **argv){
+  MD5Context *p;
+  int i;
+  if( argc<1 ) return;
+  p = sqlite3_aggregate_context(context, sizeof(*p));
+  if( p==0 ) return;
+  if( !p->isInit ){
+    MD5Init(p);
+  }
+  for(i=0; i<argc; i++){
+    const char *zData = (char*)sqlite3_value_text(argv[i]);
+    if( zData ){
+      MD5Update(p, (unsigned char*)zData, strlen(zData));
+    }
+  }
+}
+static void md5finalize(sqlite3_context *context){
+  MD5Context *p;
+  unsigned char digest[16];
+  char zBuf[33];
+  p = sqlite3_aggregate_context(context, sizeof(*p));
+  MD5Final(digest,p);
+  MD5DigestToBase16(digest, zBuf);
+  sqlite3_result_text(context, zBuf, -1, SQLITE_TRANSIENT);
+}
+
+/*
+** End of copied md5sum() code.
+**************************************************************************/
+
+typedef sqlite3_int64 i64;
+
+typedef struct Error Error;
+typedef struct Sqlite Sqlite;
+typedef struct Statement Statement;
+
+typedef struct Threadset Threadset;
+typedef struct Thread Thread;
+
+/* Total number of errors in this process so far. */
+static int nGlobalErr = 0;
+
+struct Error {
+  int rc;
+  int iLine;
+  char *zErr;
+};
+
+struct Sqlite {
+  sqlite3 *db;                    /* Database handle */
+  Statement *pCache;              /* Linked list of cached statements */
+  int nText;                      /* Size of array at aText[] */
+  char **aText;                   /* Stored text results */
+};
+
+struct Statement {
+  sqlite3_stmt *pStmt;            /* Pre-compiled statement handle */
+  Statement *pNext;               /* Next statement in linked-list */
+};
+
+struct Thread {
+  int iTid;                       /* Thread number within test */
+  void* pArg;                     /* Pointer argument passed by caller */
+
+#ifdef _WIN32
+  uintptr_t winTid;               /* Thread handle */
+#else
+  pthread_t tid;                  /* Thread id */
+#endif
+  char *(*xProc)(int, void*);     /* Thread main proc */
+  char *zRes;                     /* Value returned by xProc */
+  Thread *pNext;                  /* Next in this list of threads */
+};
+
+struct Threadset {
+  int iMaxTid;                    /* Largest iTid value allocated so far */
+  Thread *pThread;                /* Linked list of threads */
+};
+
+static void free_err(Error *p){
+  sqlite3_free(p->zErr);
+  p->zErr = 0;
+  p->rc = 0;
+}
+
+static void print_err(Error *p){
+  if( p->rc!=SQLITE_OK ){
+    int isWarn = 0;
+    if( p->rc==SQLITE_SCHEMA ) isWarn = 1;
+    if( sqlite3_strglob("* - no such table: *",p->zErr)==0 ) isWarn = 1;
+    printf("%s: (%d) \"%s\" at line %d\n", isWarn ? "Warning" : "Error",
+            p->rc, p->zErr, p->iLine);
+    if( !isWarn ) nGlobalErr++;
+    fflush(stdout);
+  }
+}
+
+static void print_and_free_err(Error *p){
+  print_err(p);
+  free_err(p);
+}
+
+static void system_error(Error *pErr, int iSys){
+  pErr->rc = iSys;
+#if _WIN32
+  pErr->zErr = sqlite3_mprintf("%s", strerror(iSys));
+#else
+  pErr->zErr = (char *)sqlite3_malloc(512);
+  strerror_r(iSys, pErr->zErr, 512);
+  pErr->zErr[511] = '\0';
+#endif
+}
+
+static void sqlite_error(
+  Error *pErr, 
+  Sqlite *pDb, 
+  const char *zFunc
+){
+  pErr->rc = sqlite3_errcode(pDb->db);
+  pErr->zErr = sqlite3_mprintf(
+      "sqlite3_%s() - %s (%d)", zFunc, sqlite3_errmsg(pDb->db),
+      sqlite3_extended_errcode(pDb->db)
+  );
+}
+
+static void test_error_x(
+  Error *pErr,
+  char *zErr
+){
+  if( pErr->rc==SQLITE_OK ){
+    pErr->rc = 1;
+    pErr->zErr = zErr;
+  }else{
+    sqlite3_free(zErr);
+  }
+}
+
+static void clear_error_x(
+  Error *pErr,
+  int rc
+){
+  if( pErr->rc==rc ){
+    pErr->rc = SQLITE_OK;
+    sqlite3_free(pErr->zErr);
+    pErr->zErr = 0;
+  }
+}
+
+static int busyhandler(void *pArg, int n){
+  sqlite3_sleep(10);
+  return 1;
+}
+
+static void opendb_x(
+  Error *pErr,                    /* IN/OUT: Error code */
+  Sqlite *pDb,                    /* OUT: Database handle */
+  const char *zFile,              /* Database file name */
+  int bDelete                     /* True to delete db file before opening */
+){
+  if( pErr->rc==SQLITE_OK ){
+    int rc;
+    int flags = SQLITE_OPEN_CREATE | SQLITE_OPEN_READWRITE | SQLITE_OPEN_URI;
+    if( bDelete ) unlink(zFile);
+    rc = sqlite3_open_v2(zFile, &pDb->db, flags, 0);
+    if( rc ){
+      sqlite_error(pErr, pDb, "open");
+      sqlite3_close(pDb->db);
+      pDb->db = 0;
+    }else{
+      sqlite3_create_function(
+          pDb->db, "md5sum", -1, SQLITE_UTF8, 0, 0, md5step, md5finalize
+      );
+      sqlite3_busy_handler(pDb->db, busyhandler, 0);
+      sqlite3_exec(pDb->db, "PRAGMA synchronous=OFF", 0, 0, 0);
+    }
+  }
+}
+
+static void closedb_x(
+  Error *pErr,                    /* IN/OUT: Error code */
+  Sqlite *pDb                     /* OUT: Database handle */
+){
+  int rc;
+  int i;
+  Statement *pIter;
+  Statement *pNext;
+  for(pIter=pDb->pCache; pIter; pIter=pNext){
+    pNext = pIter->pNext;
+    sqlite3_finalize(pIter->pStmt);
+    sqlite3_free(pIter);
+  }
+  for(i=0; i<pDb->nText; i++){
+    sqlite3_free(pDb->aText[i]);
+  }
+  sqlite3_free(pDb->aText);
+  rc = sqlite3_close(pDb->db);
+  if( rc && pErr->rc==SQLITE_OK ){
+    pErr->zErr = sqlite3_mprintf("%s", sqlite3_errmsg(pDb->db));
+  }
+  memset(pDb, 0, sizeof(Sqlite));
+}
+
+static void sql_script_x(
+  Error *pErr,                    /* IN/OUT: Error code */
+  Sqlite *pDb,                    /* Database handle */
+  const char *zSql                /* SQL script to execute */
+){
+  if( pErr->rc==SQLITE_OK ){
+    pErr->rc = sqlite3_exec(pDb->db, zSql, 0, 0, &pErr->zErr);
+  }
+}
+
+static void sql_script_printf_x(
+  Error *pErr,                    /* IN/OUT: Error code */
+  Sqlite *pDb,                    /* Database handle */
+  const char *zFormat,            /* SQL printf format string */
+  ...                             /* Printf args */
+){
+  va_list ap;                     /* ... printf arguments */
+  va_start(ap, zFormat);
+  if( pErr->rc==SQLITE_OK ){
+    char *zSql = sqlite3_vmprintf(zFormat, ap);
+    pErr->rc = sqlite3_exec(pDb->db, zSql, 0, 0, &pErr->zErr);
+    sqlite3_free(zSql);
+  }
+  va_end(ap);
+}
+
+static Statement *getSqlStatement(
+  Error *pErr,                    /* IN/OUT: Error code */
+  Sqlite *pDb,                    /* Database handle */
+  const char *zSql                /* SQL statement */
+){
+  Statement *pRet;
+  int rc;
+
+  for(pRet=pDb->pCache; pRet; pRet=pRet->pNext){
+    if( 0==strcmp(sqlite3_sql(pRet->pStmt), zSql) ){
+      return pRet;
+    }
+  }
+
+  pRet = sqlite3_malloc(sizeof(Statement));
+  rc = sqlite3_prepare_v2(pDb->db, zSql, -1, &pRet->pStmt, 0);
+  if( rc!=SQLITE_OK ){
+    sqlite_error(pErr, pDb, "prepare_v2");
+    return 0;
+  }
+  assert( 0==strcmp(sqlite3_sql(pRet->pStmt), zSql) );
+
+  pRet->pNext = pDb->pCache;
+  pDb->pCache = pRet;
+  return pRet;
+}
+
+static sqlite3_stmt *getAndBindSqlStatement(
+  Error *pErr,                    /* IN/OUT: Error code */
+  Sqlite *pDb,                    /* Database handle */
+  va_list ap                      /* SQL followed by parameters */
+){
+  Statement *pStatement;          /* The SQLite statement wrapper */
+  sqlite3_stmt *pStmt;            /* The SQLite statement to return */
+  int i;                          /* Used to iterate through parameters */
+
+  pStatement = getSqlStatement(pErr, pDb, va_arg(ap, const char *));
+  if( !pStatement ) return 0;
+  pStmt = pStatement->pStmt;
+  for(i=1; i<=sqlite3_bind_parameter_count(pStmt); i++){
+    const char *zName = sqlite3_bind_parameter_name(pStmt, i);
+    void * pArg = va_arg(ap, void*);
+
+    switch( zName[1] ){
+      case 'i':
+        sqlite3_bind_int64(pStmt, i, *(i64 *)pArg);
+        break;
+
+      default:
+        pErr->rc = 1;
+        pErr->zErr = sqlite3_mprintf("Cannot discern type: \"%s\"", zName);
+        pStmt = 0;
+        break;
+    }
+  }
+
+  return pStmt;
+}
+
+static i64 execsql_i64_x(
+  Error *pErr,                    /* IN/OUT: Error code */
+  Sqlite *pDb,                    /* Database handle */
+  ...                             /* SQL and pointers to parameter values */
+){
+  i64 iRet = 0;
+  if( pErr->rc==SQLITE_OK ){
+    sqlite3_stmt *pStmt;          /* SQL statement to execute */
+    va_list ap;                   /* ... arguments */
+    va_start(ap, pDb);
+    pStmt = getAndBindSqlStatement(pErr, pDb, ap);
+    if( pStmt ){
+      int first = 1;
+      while( SQLITE_ROW==sqlite3_step(pStmt) ){
+        if( first && sqlite3_column_count(pStmt)>0 ){
+          iRet = sqlite3_column_int64(pStmt, 0);
+        }
+        first = 0;
+      }
+      if( SQLITE_OK!=sqlite3_reset(pStmt) ){
+        sqlite_error(pErr, pDb, "reset");
+      }
+    }
+    va_end(ap);
+  }
+  return iRet;
+}
+
+static char * execsql_text_x(
+  Error *pErr,                    /* IN/OUT: Error code */
+  Sqlite *pDb,                    /* Database handle */
+  int iSlot,                      /* Db handle slot to store text in */
+  ...                             /* SQL and pointers to parameter values */
+){
+  char *zRet = 0;
+
+  if( iSlot>=pDb->nText ){
+    int nByte = sizeof(char *)*(iSlot+1);
+    pDb->aText = (char **)sqlite3_realloc(pDb->aText, nByte);
+    memset(&pDb->aText[pDb->nText], 0, sizeof(char*)*(iSlot+1-pDb->nText));
+    pDb->nText = iSlot+1;
+  }
+
+  if( pErr->rc==SQLITE_OK ){
+    sqlite3_stmt *pStmt;          /* SQL statement to execute */
+    va_list ap;                   /* ... arguments */
+    va_start(ap, iSlot);
+    pStmt = getAndBindSqlStatement(pErr, pDb, ap);
+    if( pStmt ){
+      int first = 1;
+      while( SQLITE_ROW==sqlite3_step(pStmt) ){
+        if( first && sqlite3_column_count(pStmt)>0 ){
+          zRet = sqlite3_mprintf("%s", sqlite3_column_text(pStmt, 0));
+          sqlite3_free(pDb->aText[iSlot]);
+          pDb->aText[iSlot] = zRet;
+        }
+        first = 0;
+      }
+      if( SQLITE_OK!=sqlite3_reset(pStmt) ){
+        sqlite_error(pErr, pDb, "reset");
+      }
+    }
+    va_end(ap);
+  }
+
+  return zRet;
+}
+
+static void integrity_check_x(
+  Error *pErr,                    /* IN/OUT: Error code */
+  Sqlite *pDb                     /* Database handle */
+){
+  if( pErr->rc==SQLITE_OK ){
+    Statement *pStatement;        /* Statement to execute */
+    char *zErr = 0;               /* Integrity check error */
+
+    pStatement = getSqlStatement(pErr, pDb, "PRAGMA integrity_check");
+    if( pStatement ){
+      sqlite3_stmt *pStmt = pStatement->pStmt;
+      while( SQLITE_ROW==sqlite3_step(pStmt) ){
+        const char *z = (const char*)sqlite3_column_text(pStmt, 0);
+        if( strcmp(z, "ok") ){
+          if( zErr==0 ){
+            zErr = sqlite3_mprintf("%s", z);
+          }else{
+            zErr = sqlite3_mprintf("%z\n%s", zErr, z);
+          }
+        }
+      }
+      sqlite3_reset(pStmt);
+
+      if( zErr ){
+        pErr->zErr = zErr;
+        pErr->rc = 1;
+      }
+    }
+  }
+}
+
+#ifdef _WIN32
+static unsigned __stdcall launch_thread_main(void *pArg){
+  Thread *p = (Thread *)pArg;
+  p->zRes = p->xProc(p->iTid, p->pArg);
+  _endthreadex(0);
+  return 0; /* NOT REACHED */
+}
+#else
+static void *launch_thread_main(void *pArg){
+  Thread *p = (Thread *)pArg;
+  p->zRes = p->xProc(p->iTid, p->pArg);
+  return 0;
+}
+#endif
+
+static void launch_thread_x(
+  Error *pErr,                    /* IN/OUT: Error code */
+  Threadset *pThreads,            /* Thread set */
+  char *(*xProc)(int, void*),     /* Proc to run */
+  void *pArg                      /* Argument passed to thread proc */
+){
+  if( pErr->rc==SQLITE_OK ){
+    int iTid = ++pThreads->iMaxTid;
+    Thread *p;
+    int rc;
+
+    p = (Thread *)sqlite3_malloc(sizeof(Thread));
+    memset(p, 0, sizeof(Thread));
+    p->iTid = iTid;
+    p->pArg = pArg;
+    p->xProc = xProc;
+
+#ifdef _WIN32
+    rc = SQLITE_OK;
+    p->winTid = _beginthreadex(0, 0, launch_thread_main, (void*)p, 0, 0);
+    if( p->winTid==0 ) rc = errno ? errno : rc;
+#else
+    rc = pthread_create(&p->tid, NULL, launch_thread_main, (void *)p);
+#endif
+    if( rc!=0 ){
+      system_error(pErr, rc);
+      sqlite3_free(p);
+    }else{
+      p->pNext = pThreads->pThread;
+      pThreads->pThread = p;
+    }
+  }
+}
+
+static void join_all_threads_x(
+  Error *pErr,                    /* IN/OUT: Error code */
+  Threadset *pThreads             /* Thread set */
+){
+  Thread *p;
+  Thread *pNext;
+  for(p=pThreads->pThread; p; p=pNext){
+#ifndef _WIN32
+    void *ret;
+#endif
+    int rc;
+    pNext = p->pNext;
+
+#ifdef _WIN32
+    do {
+      rc = WaitForSingleObjectEx((HANDLE)p->winTid, INFINITE, TRUE);
+    }while( rc==WAIT_IO_COMPLETION );
+    CloseHandle((HANDLE)p->winTid);
+#else
+    rc = pthread_join(p->tid, &ret);
+#endif
+
+    if( rc!=0 ){
+      if( pErr->rc==SQLITE_OK ) system_error(pErr, rc);
+    }else{
+      printf("Thread %d says: %s\n", p->iTid, (p->zRes==0 ? "..." : p->zRes));
+      fflush(stdout);
+    }
+    sqlite3_free(p->zRes);
+    sqlite3_free(p);
+  }
+  pThreads->pThread = 0;
+}
+
+#ifdef _WIN32
+# define THREADTEST3_STAT _stat
+#else
+# define THREADTEST3_STAT stat
+#endif
+
+static i64 filesize_x(
+  Error *pErr,
+  const char *zFile
+){
+  i64 iRet = 0;
+  if( pErr->rc==SQLITE_OK ){
+    struct THREADTEST3_STAT sStat;
+    if( THREADTEST3_STAT(zFile, &sStat) ){
+      iRet = -1;
+    }else{
+      iRet = sStat.st_size;
+    }
+  }
+  return iRet;
+}
+
+static void filecopy_x(
+  Error *pErr,
+  const char *zFrom,
+  const char *zTo
+){
+  if( pErr->rc==SQLITE_OK ){
+    i64 nByte = filesize_x(pErr, zFrom);
+    if( nByte<0 ){
+      test_error_x(pErr, sqlite3_mprintf("no such file: %s", zFrom));
+    }else{
+      i64 iOff;
+      char aBuf[1024];
+      int fd1;
+      int fd2;
+      unlink(zTo);
+
+      fd1 = open(zFrom, O_RDONLY|O_BINARY);
+      if( fd1<0 ){
+        system_error(pErr, errno);
+        return;
+      }
+      fd2 = open(zTo, O_RDWR|O_CREAT|O_EXCL|O_BINARY, 0644);
+      if( fd2<0 ){
+        system_error(pErr, errno);
+        close(fd1);
+        return;
+      }
+
+      iOff = 0;
+      while( iOff<nByte ){
+        int nCopy = sizeof(aBuf);
+        if( nCopy+iOff>nByte ){
+          nCopy = nByte - iOff;
+        }
+        if( nCopy!=read(fd1, aBuf, nCopy) ){
+          system_error(pErr, errno);
+          break;
+        }
+        if( nCopy!=write(fd2, aBuf, nCopy) ){
+          system_error(pErr, errno);
+          break;
+        }
+        iOff += nCopy;
+      }
+
+      close(fd1);
+      close(fd2);
+    }
+  }
+}
+
+/* 
+** Used by setstoptime() and timetostop().
+*/
+static double timelimit = 0.0;
+
+static double currentTime(void){
+  double t;
+  static sqlite3_vfs *pTimelimitVfs = 0;
+  if( pTimelimitVfs==0 ) pTimelimitVfs = sqlite3_vfs_find(0);
+  if( pTimelimitVfs->iVersion>=2 && pTimelimitVfs->xCurrentTimeInt64!=0 ){
+    sqlite3_int64 tm;
+    pTimelimitVfs->xCurrentTimeInt64(pTimelimitVfs, &tm);
+    t = tm/86400000.0;
+  }else{
+    pTimelimitVfs->xCurrentTime(pTimelimitVfs, &t);
+  }
+  return t;
+}
+
+static void setstoptime_x(
+  Error *pErr,                    /* IN/OUT: Error code */
+  int nMs                         /* Milliseconds until "stop time" */
+){
+  if( pErr->rc==SQLITE_OK ){
+    double t = currentTime();
+    timelimit = t + ((double)nMs)/(1000.0*60.0*60.0*24.0);
+  }
+}
+
+static int timetostop_x(
+  Error *pErr                     /* IN/OUT: Error code */
+){
+  int ret = 1;
+  if( pErr->rc==SQLITE_OK ){
+    double t = currentTime();
+    ret = (t >= timelimit);
+  }
+  return ret;
+}
+
+
+/*************************************************************************
+**************************************************************************
+**************************************************************************
+** End infrastructure. Begin tests.
+*/
+
+#define WALTHREAD1_NTHREAD  10
+#define WALTHREAD3_NTHREAD  6
+
+static char *walthread1_thread(int iTid, void *pArg){
+  Error err = {0};                /* Error code and message */
+  Sqlite db = {0};                /* SQLite database connection */
+  int nIter = 0;                  /* Iterations so far */
+
+  opendb(&err, &db, "test.db", 0);
+  while( !timetostop(&err) ){
+    const char *azSql[] = {
+      "SELECT md5sum(x) FROM t1 WHERE rowid != (SELECT max(rowid) FROM t1)",
+      "SELECT x FROM t1 WHERE rowid = (SELECT max(rowid) FROM t1)",
+    };
+    char *z1, *z2, *z3;
+
+    execsql(&err, &db, "BEGIN");
+    integrity_check(&err, &db);
+    z1 = execsql_text(&err, &db, 1, azSql[0]);
+    z2 = execsql_text(&err, &db, 2, azSql[1]);
+    z3 = execsql_text(&err, &db, 3, azSql[0]);
+    execsql(&err, &db, "COMMIT");
+
+    if( strcmp(z1, z2) || strcmp(z1, z3) ){
+      test_error(&err, "Failed read: %s %s %s", z1, z2, z3);
+    }
+
+    sql_script(&err, &db,
+        "BEGIN;"
+          "INSERT INTO t1 VALUES(randomblob(100));"
+          "INSERT INTO t1 VALUES(randomblob(100));"
+          "INSERT INTO t1 SELECT md5sum(x) FROM t1;"
+        "COMMIT;"
+    );
+    nIter++;
+  }
+  closedb(&err, &db);
+
+  print_and_free_err(&err);
+  return sqlite3_mprintf("%d iterations", nIter);
+}
+
+static char *walthread1_ckpt_thread(int iTid, void *pArg){
+  Error err = {0};                /* Error code and message */
+  Sqlite db = {0};                /* SQLite database connection */
+  int nCkpt = 0;                  /* Checkpoints so far */
+
+  opendb(&err, &db, "test.db", 0);
+  while( !timetostop(&err) ){
+    sqlite3_sleep(500);
+    execsql(&err, &db, "PRAGMA wal_checkpoint");
+    if( err.rc==SQLITE_OK ) nCkpt++;
+    clear_error(&err, SQLITE_BUSY);
+  }
+  closedb(&err, &db);
+
+  print_and_free_err(&err);
+  return sqlite3_mprintf("%d checkpoints", nCkpt);
+}
+
+static void walthread1(int nMs){
+  Error err = {0};                /* Error code and message */
+  Sqlite db = {0};                /* SQLite database connection */
+  Threadset threads = {0};        /* Test threads */
+  int i;                          /* Iterator variable */
+
+  opendb(&err, &db, "test.db", 1);
+  sql_script(&err, &db,
+      "PRAGMA journal_mode = WAL;"
+      "CREATE TABLE t1(x PRIMARY KEY);"
+      "INSERT INTO t1 VALUES(randomblob(100));"
+      "INSERT INTO t1 VALUES(randomblob(100));"
+      "INSERT INTO t1 SELECT md5sum(x) FROM t1;"
+  );
+  closedb(&err, &db);
+
+  setstoptime(&err, nMs);
+  for(i=0; i<WALTHREAD1_NTHREAD; i++){
+    launch_thread(&err, &threads, walthread1_thread, 0);
+  }
+  launch_thread(&err, &threads, walthread1_ckpt_thread, 0);
+  join_all_threads(&err, &threads);
+
+  print_and_free_err(&err);
+}
+
+static char *walthread2_thread(int iTid, void *pArg){
+  Error err = {0};                /* Error code and message */
+  Sqlite db = {0};                /* SQLite database connection */
+  int anTrans[2] = {0, 0};        /* Number of WAL and Rollback transactions */
+  int iArg = PTR2INT(pArg);
+
+  const char *zJournal = "PRAGMA journal_mode = WAL";
+  if( iArg ){ zJournal = "PRAGMA journal_mode = DELETE"; }
+
+  while( !timetostop(&err) ){
+    int journal_exists = 0;
+    int wal_exists = 0;
+
+    opendb(&err, &db, "test.db", 0);
+
+    sql_script(&err, &db, zJournal);
+    clear_error(&err, SQLITE_BUSY);
+    sql_script(&err, &db, "BEGIN");
+    sql_script(&err, &db, "INSERT INTO t1 VALUES(NULL, randomblob(100))");
+
+    journal_exists = (filesize(&err, "test.db-journal") >= 0);
+    wal_exists = (filesize(&err, "test.db-wal") >= 0);
+    if( (journal_exists+wal_exists)!=1 ){
+      test_error(&err, "File system looks incorrect (%d, %d)", 
+          journal_exists, wal_exists
+      );
+    }
+    anTrans[journal_exists]++;
+
+    sql_script(&err, &db, "COMMIT");
+    integrity_check(&err, &db);
+    closedb(&err, &db);
+  }
+
+  print_and_free_err(&err);
+  return sqlite3_mprintf("W %d R %d", anTrans[0], anTrans[1]);
+}
+
+static void walthread2(int nMs){
+  Error err = {0};
+  Sqlite db = {0};
+  Threadset threads = {0};
+
+  opendb(&err, &db, "test.db", 1);
+  sql_script(&err, &db, "CREATE TABLE t1(x INTEGER PRIMARY KEY, y UNIQUE)");
+  closedb(&err, &db);
+
+  setstoptime(&err, nMs);
+  launch_thread(&err, &threads, walthread2_thread, 0);
+  launch_thread(&err, &threads, walthread2_thread, 0);
+  launch_thread(&err, &threads, walthread2_thread, (void*)1);
+  launch_thread(&err, &threads, walthread2_thread, (void*)1);
+  join_all_threads(&err, &threads);
+
+  print_and_free_err(&err);
+}
+
+static char *walthread3_thread(int iTid, void *pArg){
+  Error err = {0};                /* Error code and message */
+  Sqlite db = {0};                /* SQLite database connection */
+  i64 iNextWrite;                 /* Next value this thread will write */
+  int iArg = PTR2INT(pArg);
+
+  opendb(&err, &db, "test.db", 0);
+  sql_script(&err, &db, "PRAGMA wal_autocheckpoint = 10");
+
+  iNextWrite = iArg+1;
+  while( 1 ){
+    i64 sum1;
+    i64 sum2;
+    int stop = 0;                 /* True to stop executing (test timed out) */
+
+    while( 0==(stop = timetostop(&err)) ){
+      i64 iMax = execsql_i64(&err, &db, "SELECT max(cnt) FROM t1");
+      if( iMax+1==iNextWrite ) break;
+    }
+    if( stop ) break;
+
+    sum1 = execsql_i64(&err, &db, "SELECT sum(cnt) FROM t1");
+    sum2 = execsql_i64(&err, &db, "SELECT sum(sum1) FROM t1");
+    execsql_i64(&err, &db, 
+        "INSERT INTO t1 VALUES(:iNextWrite, :iSum1, :iSum2)",
+        &iNextWrite, &sum1, &sum2
+    );
+    integrity_check(&err, &db);
+
+    iNextWrite += WALTHREAD3_NTHREAD;
+  }
+
+  closedb(&err, &db);
+  print_and_free_err(&err);
+  return 0;
+}
+
+static void walthread3(int nMs){
+  Error err = {0};
+  Sqlite db = {0};
+  Threadset threads = {0};
+  int i;
+
+  opendb(&err, &db, "test.db", 1);
+  sql_script(&err, &db, 
+      "PRAGMA journal_mode = WAL;"
+      "CREATE TABLE t1(cnt PRIMARY KEY, sum1, sum2);"
+      "CREATE INDEX i1 ON t1(sum1);"
+      "CREATE INDEX i2 ON t1(sum2);"
+      "INSERT INTO t1 VALUES(0, 0, 0);"
+  );
+  closedb(&err, &db);
+
+  setstoptime(&err, nMs);
+  for(i=0; i<WALTHREAD3_NTHREAD; i++){
+    launch_thread(&err, &threads, walthread3_thread, INT2PTR(i));
+  }
+  join_all_threads(&err, &threads);
+
+  print_and_free_err(&err);
+}
+
+static char *walthread4_reader_thread(int iTid, void *pArg){
+  Error err = {0};                /* Error code and message */
+  Sqlite db = {0};                /* SQLite database connection */
+
+  opendb(&err, &db, "test.db", 0);
+  while( !timetostop(&err) ){
+    integrity_check(&err, &db);
+  }
+  closedb(&err, &db);
+
+  print_and_free_err(&err);
+  return 0;
+}
+
+static char *walthread4_writer_thread(int iTid, void *pArg){
+  Error err = {0};                /* Error code and message */
+  Sqlite db = {0};                /* SQLite database connection */
+  i64 iRow = 1;
+
+  opendb(&err, &db, "test.db", 0);
+  sql_script(&err, &db, "PRAGMA wal_autocheckpoint = 15;");
+  while( !timetostop(&err) ){
+    execsql_i64(
+        &err, &db, "REPLACE INTO t1 VALUES(:iRow, randomblob(300))", &iRow
+    );
+    iRow++;
+    if( iRow==10 ) iRow = 0;
+  }
+  closedb(&err, &db);
+
+  print_and_free_err(&err);
+  return 0;
+}
+
+static void walthread4(int nMs){
+  Error err = {0};
+  Sqlite db = {0};
+  Threadset threads = {0};
+
+  opendb(&err, &db, "test.db", 1);
+  sql_script(&err, &db, 
+      "PRAGMA journal_mode = WAL;"
+      "CREATE TABLE t1(a INTEGER PRIMARY KEY, b UNIQUE);"
+  );
+  closedb(&err, &db);
+
+  setstoptime(&err, nMs);
+  launch_thread(&err, &threads, walthread4_reader_thread, 0);
+  launch_thread(&err, &threads, walthread4_writer_thread, 0);
+  join_all_threads(&err, &threads);
+
+  print_and_free_err(&err);
+}
+
+static char *walthread5_thread(int iTid, void *pArg){
+  Error err = {0};                /* Error code and message */
+  Sqlite db = {0};                /* SQLite database connection */
+  i64 nRow;
+
+  opendb(&err, &db, "test.db", 0);
+  nRow = execsql_i64(&err, &db, "SELECT count(*) FROM t1");
+  closedb(&err, &db);
+
+  if( nRow!=65536 ) test_error(&err, "Bad row count: %d", (int)nRow);
+  print_and_free_err(&err);
+  return 0;
+}
+static void walthread5(int nMs){
+  Error err = {0};
+  Sqlite db = {0};
+  Threadset threads = {0};
+
+  opendb(&err, &db, "test.db", 1);
+  sql_script(&err, &db, 
+      "PRAGMA wal_autocheckpoint = 0;"
+      "PRAGMA page_size = 1024;"
+      "PRAGMA journal_mode = WAL;"
+      "CREATE TABLE t1(x);"
+      "BEGIN;"
+      "INSERT INTO t1 VALUES(randomblob(900));"
+      "INSERT INTO t1 SELECT randomblob(900) FROM t1;      /*     2 */"
+      "INSERT INTO t1 SELECT randomblob(900) FROM t1;      /*     4 */"
+      "INSERT INTO t1 SELECT randomblob(900) FROM t1;      /*     8 */"
+      "INSERT INTO t1 SELECT randomblob(900) FROM t1;      /*    16 */"
+      "INSERT INTO t1 SELECT randomblob(900) FROM t1;      /*    32 */"
+      "INSERT INTO t1 SELECT randomblob(900) FROM t1;      /*    64 */"
+      "INSERT INTO t1 SELECT randomblob(900) FROM t1;      /*   128 */"
+      "INSERT INTO t1 SELECT randomblob(900) FROM t1;      /*   256 */"
+      "INSERT INTO t1 SELECT randomblob(900) FROM t1;      /*   512 */"
+      "INSERT INTO t1 SELECT randomblob(900) FROM t1;      /*  1024 */"
+      "INSERT INTO t1 SELECT randomblob(900) FROM t1;      /*  2048 */"
+      "INSERT INTO t1 SELECT randomblob(900) FROM t1;      /*  4096 */"
+      "INSERT INTO t1 SELECT randomblob(900) FROM t1;      /*  8192 */"
+      "INSERT INTO t1 SELECT randomblob(900) FROM t1;      /* 16384 */"
+      "INSERT INTO t1 SELECT randomblob(900) FROM t1;      /* 32768 */"
+      "INSERT INTO t1 SELECT randomblob(900) FROM t1;      /* 65536 */"
+      "COMMIT;"
+  );
+  filecopy(&err, "test.db", "test_sv.db");
+  filecopy(&err, "test.db-wal", "test_sv.db-wal");
+  closedb(&err, &db);
+
+  filecopy(&err, "test_sv.db", "test.db");
+  filecopy(&err, "test_sv.db-wal", "test.db-wal");
+
+  if( err.rc==SQLITE_OK ){
+    printf("  WAL file is %d bytes,", (int)filesize(&err,"test.db-wal"));
+    printf(" DB file is %d.\n", (int)filesize(&err,"test.db"));
+  }
+
+  setstoptime(&err, nMs);
+  launch_thread(&err, &threads, walthread5_thread, 0);
+  launch_thread(&err, &threads, walthread5_thread, 0);
+  launch_thread(&err, &threads, walthread5_thread, 0);
+  launch_thread(&err, &threads, walthread5_thread, 0);
+  launch_thread(&err, &threads, walthread5_thread, 0);
+  join_all_threads(&err, &threads);
+
+  if( err.rc==SQLITE_OK ){
+    printf("  WAL file is %d bytes,", (int)filesize(&err,"test.db-wal"));
+    printf(" DB file is %d.\n", (int)filesize(&err,"test.db"));
+  }
+
+  print_and_free_err(&err);
+}
+
+/*------------------------------------------------------------------------
+** Test case "cgt_pager_1"
+*/
+#define CALLGRINDTEST1_NROW 10000
+static void cgt_pager_1_populate(Error *pErr, Sqlite *pDb){
+  const char *zInsert = "INSERT INTO t1 VALUES(:iRow, zeroblob(:iBlob))";
+  i64 iRow;
+  sql_script(pErr, pDb, "BEGIN");
+  for(iRow=1; iRow<=CALLGRINDTEST1_NROW; iRow++){
+    i64 iBlob = 600 + (iRow%300);
+    execsql(pErr, pDb, zInsert, &iRow, &iBlob);
+  }
+  sql_script(pErr, pDb, "COMMIT");
+}
+static void cgt_pager_1_update(Error *pErr, Sqlite *pDb){
+  const char *zUpdate = "UPDATE t1 SET b = zeroblob(:iBlob) WHERE a = :iRow";
+  i64 iRow;
+  sql_script(pErr, pDb, "BEGIN");
+  for(iRow=1; iRow<=CALLGRINDTEST1_NROW; iRow++){
+    i64 iBlob = 600 + ((iRow+100)%300);
+    execsql(pErr, pDb, zUpdate, &iBlob, &iRow);
+  }
+  sql_script(pErr, pDb, "COMMIT");
+}
+static void cgt_pager_1_read(Error *pErr, Sqlite *pDb){
+  i64 iRow;
+  sql_script(pErr, pDb, "BEGIN");
+  for(iRow=1; iRow<=CALLGRINDTEST1_NROW; iRow++){
+    execsql(pErr, pDb, "SELECT * FROM t1 WHERE a = :iRow", &iRow);
+  }
+  sql_script(pErr, pDb, "COMMIT");
+}
+static void cgt_pager_1(int nMs){
+  void (*xSub)(Error *, Sqlite *);
+  Error err = {0};
+  Sqlite db = {0};
+
+  opendb(&err, &db, "test.db", 1);
+  sql_script(&err, &db,
+      "PRAGMA cache_size = 2000;"
+      "PRAGMA page_size = 1024;"
+      "CREATE TABLE t1(a INTEGER PRIMARY KEY, b BLOB);"
+  );
+
+  xSub = cgt_pager_1_populate; xSub(&err, &db);
+  xSub = cgt_pager_1_update;   xSub(&err, &db);
+  xSub = cgt_pager_1_read;     xSub(&err, &db);
+
+  closedb(&err, &db);
+  print_and_free_err(&err);
+}
+
+/*------------------------------------------------------------------------
+** Test case "dynamic_triggers"
+**
+**   Two threads executing statements that cause deeply nested triggers
+**   to fire. And one thread busily creating and deleting triggers. This
+**   is an attempt to find a bug reported to us.
+*/
+
+static char *dynamic_triggers_1(int iTid, void *pArg){
+  Error err = {0};                /* Error code and message */
+  Sqlite db = {0};                /* SQLite database connection */
+  int nDrop = 0;
+  int nCreate = 0;
+
+  opendb(&err, &db, "test.db", 0);
+  while( !timetostop(&err) ){
+    int i;
+
+    for(i=1; i<9; i++){
+      char *zSql = sqlite3_mprintf(
+        "CREATE TRIGGER itr%d BEFORE INSERT ON t%d BEGIN "
+          "INSERT INTO t%d VALUES(new.x, new.y);"
+        "END;", i, i, i+1
+      );
+      execsql(&err, &db, zSql);
+      sqlite3_free(zSql);
+      nCreate++;
+    }
+
+    for(i=1; i<9; i++){
+      char *zSql = sqlite3_mprintf(
+        "CREATE TRIGGER dtr%d BEFORE DELETE ON t%d BEGIN "
+          "DELETE FROM t%d WHERE x = old.x; "
+        "END;", i, i, i+1
+      );
+      execsql(&err, &db, zSql);
+      sqlite3_free(zSql);
+      nCreate++;
+    }
+
+    for(i=1; i<9; i++){
+      char *zSql = sqlite3_mprintf("DROP TRIGGER itr%d", i);
+      execsql(&err, &db, zSql);
+      sqlite3_free(zSql);
+      nDrop++;
+    }
+
+    for(i=1; i<9; i++){
+      char *zSql = sqlite3_mprintf("DROP TRIGGER dtr%d", i);
+      execsql(&err, &db, zSql);
+      sqlite3_free(zSql);
+      nDrop++;
+    }
+  }
+  closedb(&err, &db);
+
+  print_and_free_err(&err);
+  return sqlite3_mprintf("%d created, %d dropped", nCreate, nDrop);
+}
+
+static char *dynamic_triggers_2(int iTid, void *pArg){
+  Error err = {0};                /* Error code and message */
+  Sqlite db = {0};                /* SQLite database connection */
+  i64 iVal = 0;
+  int nInsert = 0;
+  int nDelete = 0;
+
+  opendb(&err, &db, "test.db", 0);
+  while( !timetostop(&err) ){
+    do {
+      iVal = (iVal+1)%100;
+      execsql(&err, &db, "INSERT INTO t1 VALUES(:iX, :iY+1)", &iVal, &iVal);
+      nInsert++;
+    } while( iVal );
+
+    do {
+      iVal = (iVal+1)%100;
+      execsql(&err, &db, "DELETE FROM t1 WHERE x = :iX", &iVal);
+      nDelete++;
+    } while( iVal );
+  }
+  closedb(&err, &db);
+
+  print_and_free_err(&err);
+  return sqlite3_mprintf("%d inserts, %d deletes", nInsert, nDelete);
+}
+
+static void dynamic_triggers(int nMs){
+  Error err = {0};
+  Sqlite db = {0};
+  Threadset threads = {0};
+
+  opendb(&err, &db, "test.db", 1);
+  sql_script(&err, &db, 
+      "PRAGMA page_size = 1024;"
+      "PRAGMA journal_mode = WAL;"
+      "CREATE TABLE t1(x, y);"
+      "CREATE TABLE t2(x, y);"
+      "CREATE TABLE t3(x, y);"
+      "CREATE TABLE t4(x, y);"
+      "CREATE TABLE t5(x, y);"
+      "CREATE TABLE t6(x, y);"
+      "CREATE TABLE t7(x, y);"
+      "CREATE TABLE t8(x, y);"
+      "CREATE TABLE t9(x, y);"
+  );
+  closedb(&err, &db);
+
+  setstoptime(&err, nMs);
+
+  sqlite3_enable_shared_cache(1);
+  launch_thread(&err, &threads, dynamic_triggers_2, 0);
+  launch_thread(&err, &threads, dynamic_triggers_2, 0);
+
+  sqlite3_sleep(2*1000);
+  sqlite3_enable_shared_cache(0);
+
+  launch_thread(&err, &threads, dynamic_triggers_2, 0);
+  launch_thread(&err, &threads, dynamic_triggers_1, 0);
+
+  join_all_threads(&err, &threads);
+
+  print_and_free_err(&err);
+}
+
+
+
+#include "tt3_checkpoint.c"
+#include "tt3_index.c"
+#include "tt3_lookaside1.c"
+#include "tt3_vacuum.c"
+#include "tt3_stress.c"
+#include "tt3_shared.c"
+
+int main(int argc, char **argv){
+  struct ThreadTest {
+    void (*xTest)(int);   /* Routine for running this test */
+    const char *zTest;    /* Name of this test */
+    int nMs;              /* How long to run this test, in milliseconds */
+  } aTest[] = {
+    { walthread1, "walthread1", 20000 },
+    { walthread2, "walthread2", 20000 },
+    { walthread3, "walthread3", 20000 },
+    { walthread4, "walthread4", 20000 },
+    { walthread5, "walthread5",  1000 },
+    
+    { cgt_pager_1,      "cgt_pager_1", 0 },
+    { dynamic_triggers, "dynamic_triggers", 20000 },
+
+    { checkpoint_starvation_1, "checkpoint_starvation_1", 10000 },
+    { checkpoint_starvation_2, "checkpoint_starvation_2", 10000 },
+
+    { create_drop_index_1, "create_drop_index_1", 10000 },
+    { lookaside1,          "lookaside1", 10000 },
+    { vacuum1,             "vacuum1", 10000 },
+    { stress1,             "stress1", 10000 },
+    { stress2,             "stress2", 60000 },
+    { shared1,             "shared1", 10000 },
+  };
+  static char *substArgv[] = { 0, "*", 0 };
+  int i, iArg;
+  int nTestfound = 0;
+
+  sqlite3_config(SQLITE_CONFIG_MULTITHREAD);
+  if( argc<2 ){
+    argc = 2;
+    argv = substArgv;
+  }
+
+  /* Loop through the command-line arguments to ensure that each argument
+  ** selects at least one test. If not, assume there is a typo on the 
+  ** command-line and bail out with the usage message.  */
+  for(iArg=1; iArg<argc; iArg++){
+    const char *zArg = argv[iArg];
+    if( zArg[0]=='-' ){
+      if( sqlite3_stricmp(zArg, "-multiplexor")==0 ){
+        /* Install the multiplexor VFS as the default */
+        int rc = sqlite3_multiplex_initialize(0, 1);
+        if( rc!=SQLITE_OK ){
+          fprintf(stderr, "Failed to install multiplexor VFS (%d)\n", rc);
+          return 253;
+        }
+      }
+      else {
+        goto usage;
+      }
+
+      continue;
+    }
+
+    for(i=0; i<sizeof(aTest)/sizeof(aTest[0]); i++){
+      if( sqlite3_strglob(zArg, aTest[i].zTest)==0 ) break;
+    }
+    if( i>=sizeof(aTest)/sizeof(aTest[0]) ) goto usage;   
+  }
+
+  for(iArg=1; iArg<argc; iArg++){
+    if( argv[iArg][0]=='-' ) continue;
+    for(i=0; i<sizeof(aTest)/sizeof(aTest[0]); i++){
+      char const *z = aTest[i].zTest;
+      if( sqlite3_strglob(argv[iArg],z)==0 ){
+        printf("Running %s for %d seconds...\n", z, aTest[i].nMs/1000);
+        fflush(stdout);
+        aTest[i].xTest(aTest[i].nMs);
+        nTestfound++;
+      }
+    }
+  }
+  if( nTestfound==0 ) goto usage;
+
+  printf("%d errors out of %d tests\n", nGlobalErr, nTestfound);
+  return (nGlobalErr>0 ? 255 : 0);
+
+ usage:
+  printf("Usage: %s [-multiplexor] [testname|testprefix*]...\n", argv[0]);
+  printf("Available tests are:\n");
+  for(i=0; i<sizeof(aTest)/sizeof(aTest[0]); i++){
+    printf("   %s\n", aTest[i].zTest);
+  }
+
+  return 254;
+}
diff --git a/test/threadtest4.c b/test/threadtest4.c
new file mode 100644
index 0000000000000000000000000000000000000000..da5ce75f051888c908eea952dcb17f39b3ac9456
--- /dev/null
+++ b/test/threadtest4.c
@@ -0,0 +1,484 @@
+/*
+** 2014-12-11
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file implements a simple standalone program used to stress the
+** SQLite library when accessing the same set of databases simultaneously
+** from multiple threads in shared-cache mode.
+**
+** This test program runs on unix-like systems only.  It uses pthreads.
+** To compile:
+**
+**     gcc -g -Wall -I. threadtest4.c sqlite3.c -ldl -lpthread
+**
+** To run:
+**
+**     ./a.out 10
+**
+** The argument is the number of threads.  There are also options, such
+** as -wal and -multithread and -serialized.
+**
+** Consider also compiling with clang instead of gcc and adding the
+** -fsanitize=thread option.
+*/
+#include "sqlite3.h"
+#include <pthread.h>
+#include <sched.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdarg.h>
+
+/*
+** An instance of the following structure is passed into each worker
+** thread.
+*/
+typedef struct WorkerInfo WorkerInfo;
+struct WorkerInfo {
+  int tid;                    /* Thread ID */
+  int nWorker;                /* Total number of workers */
+  unsigned wkrFlags;          /* Flags */
+  sqlite3 *mainDb;            /* Database connection of the main thread */
+  sqlite3 *db;                /* Database connection of this thread */
+  int nErr;                   /* Number of errors seen by this thread */
+  int nTest;                  /* Number of tests run by this thread */
+  char *zMsg;                 /* Message returned by this thread */
+  pthread_t id;               /* Thread id */
+  pthread_mutex_t *pWrMutex;  /* Hold this mutex while writing */
+};
+
+/*
+** Allowed values for WorkerInfo.wkrFlags
+*/
+#define TT4_SERIALIZED    0x0000001   /* The --serialized option is used */
+#define TT4_WAL           0x0000002   /* WAL mode in use */
+#define TT4_TRACE         0x0000004   /* Trace activity */
+
+
+/*
+** Report an OOM error and die if the argument is NULL
+*/
+static void check_oom(void *x){
+  if( x==0 ){
+    fprintf(stderr, "out of memory\n");
+    exit(1);
+  }
+}
+
+/*
+** Allocate memory.  If the allocation fails, print an error message and
+** kill the process.
+*/
+static void *safe_malloc(int sz){
+  void *x = sqlite3_malloc(sz>0?sz:1);
+  check_oom(x);
+  return x;
+}
+
+/*
+** Print a trace message for a worker
+*/
+static void worker_trace(WorkerInfo *p, const char *zFormat, ...){
+  va_list ap;
+  char *zMsg;
+  if( (p->wkrFlags & TT4_TRACE)==0 ) return;
+  va_start(ap, zFormat);
+  zMsg = sqlite3_vmprintf(zFormat, ap);
+  check_oom(zMsg);
+  va_end(ap);
+  fprintf(stderr, "TRACE(%02d): %s\n", p->tid, zMsg);
+  sqlite3_free(zMsg);
+}
+
+/*
+** Prepare a single SQL query
+*/
+static sqlite3_stmt *prep_sql(sqlite3 *db, const char *zFormat, ...){
+  va_list ap;
+  char *zSql;
+  int rc;
+  sqlite3_stmt *pStmt = 0;
+
+  va_start(ap, zFormat);
+  zSql = sqlite3_vmprintf(zFormat, ap);
+  va_end(ap);
+  check_oom(zSql);
+  rc = sqlite3_prepare_v2(db, zSql, -1, &pStmt, 0);
+  if( rc!=SQLITE_OK ){
+    fprintf(stderr, "SQL error (%d,%d): %s\nWhile preparing: [%s]\n",
+            rc, sqlite3_extended_errcode(db), sqlite3_errmsg(db), zSql);
+    exit(1);
+  }
+  sqlite3_free(zSql);
+  return pStmt;
+}
+
+/*
+** Run a SQL statements.  Panic if unable.
+*/
+static void run_sql(WorkerInfo *p, const char *zFormat, ...){
+  va_list ap;
+  char *zSql;
+  int rc;
+  sqlite3_stmt *pStmt = 0;
+  int nRetry = 0;
+
+  va_start(ap, zFormat);
+  zSql = sqlite3_vmprintf(zFormat, ap);
+  va_end(ap);
+  check_oom(zSql);
+  rc = sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0);
+  if( rc!=SQLITE_OK ){
+    fprintf(stderr, "SQL error (%d,%d): %s\nWhile preparing: [%s]\n",
+            rc, sqlite3_extended_errcode(p->db), sqlite3_errmsg(p->db), zSql);
+    exit(1);
+  }
+  worker_trace(p, "running [%s]", zSql);
+  while( (rc = sqlite3_step(pStmt))!=SQLITE_DONE ){
+    if( (rc&0xff)==SQLITE_BUSY || (rc&0xff)==SQLITE_LOCKED ){
+      sqlite3_reset(pStmt);
+      nRetry++;
+      if( nRetry<10 ){
+        worker_trace(p, "retry %d for [%s]", nRetry, zSql);
+        sched_yield();
+        continue;
+      }else{
+        fprintf(stderr, "Deadlock in thread %d while running [%s]\n",
+                p->tid, zSql);
+        exit(1);
+      }
+    }
+    if( rc!=SQLITE_ROW ){
+      fprintf(stderr, "SQL error (%d,%d): %s\nWhile running [%s]\n",
+              rc, sqlite3_extended_errcode(p->db), sqlite3_errmsg(p->db), zSql);
+      exit(1);
+    }
+  }
+  sqlite3_free(zSql);
+  sqlite3_finalize(pStmt);
+}
+
+
+/*
+** Open the database connection for WorkerInfo.  The order in which
+** the files are opened is a function of the tid value.
+*/
+static void worker_open_connection(WorkerInfo *p, int iCnt){
+  char *zFile;
+  int x;
+  int rc;
+  static const unsigned char aOrder[6][3] = {
+    { 1, 2, 3},
+    { 1, 3, 2},
+    { 2, 1, 3},
+    { 2, 3, 1},
+    { 3, 1, 2},
+    { 3, 2, 1}
+  };
+  x = (p->tid + iCnt) % 6;
+  zFile = sqlite3_mprintf("tt4-test%d.db", aOrder[x][0]);
+  check_oom(zFile);
+  worker_trace(p, "open %s", zFile);
+  rc = sqlite3_open_v2(zFile, &p->db,
+                       SQLITE_OPEN_READWRITE|SQLITE_OPEN_SHAREDCACHE, 0);
+  if( rc!=SQLITE_OK ){
+    fprintf(stderr, "sqlite_open_v2(%s) failed on thread %d\n",
+            zFile, p->tid);
+    exit(1);
+  }
+  sqlite3_free(zFile);
+  run_sql(p, "PRAGMA read_uncommitted=ON;");
+  sqlite3_busy_timeout(p->db, 10000);
+  run_sql(p, "PRAGMA synchronous=OFF;");
+  run_sql(p, "ATTACH 'tt4-test%d.db' AS aux1", aOrder[x][1]);
+  run_sql(p, "ATTACH 'tt4-test%d.db' AS aux2", aOrder[x][2]);
+}
+
+/*
+** Close the worker database connection
+*/
+static void worker_close_connection(WorkerInfo *p){
+  if( p->db ){
+    worker_trace(p, "close");
+    sqlite3_close(p->db);
+    p->db = 0;
+  }
+}
+
+/*
+** Delete all content in the three databases associated with a
+** single thread.  Make this happen all in a single transaction if
+** inTrans is true, or separately for each database if inTrans is
+** false.
+*/
+static void worker_delete_all_content(WorkerInfo *p, int inTrans){
+  if( inTrans ){
+    pthread_mutex_lock(p->pWrMutex);
+    run_sql(p, "BEGIN");
+    run_sql(p, "DELETE FROM t1 WHERE tid=%d", p->tid);
+    run_sql(p, "DELETE FROM t2 WHERE tid=%d", p->tid);
+    run_sql(p, "DELETE FROM t3 WHERE tid=%d", p->tid);
+    run_sql(p, "COMMIT");
+    pthread_mutex_unlock(p->pWrMutex);
+    p->nTest++;
+  }else{
+    pthread_mutex_lock(p->pWrMutex);
+    run_sql(p, "DELETE FROM t1 WHERE tid=%d", p->tid);
+    pthread_mutex_unlock(p->pWrMutex);
+    p->nTest++;
+    pthread_mutex_lock(p->pWrMutex);
+    run_sql(p, "DELETE FROM t2 WHERE tid=%d", p->tid);
+    pthread_mutex_unlock(p->pWrMutex);
+    p->nTest++;
+    pthread_mutex_lock(p->pWrMutex);
+    run_sql(p, "DELETE FROM t3 WHERE tid=%d", p->tid);
+    pthread_mutex_unlock(p->pWrMutex);
+    p->nTest++;
+  }
+}
+
+/*
+** Create rows mn through mx in table iTab for the given worker
+*/
+static void worker_add_content(WorkerInfo *p, int mn, int mx, int iTab){
+  char *zTabDef;
+  switch( iTab ){
+    case 1:  zTabDef = "t1(tid,sp,a,b,c)";  break;
+    case 2:  zTabDef = "t2(tid,sp,d,e,f)";  break;
+    case 3:  zTabDef = "t3(tid,sp,x,y,z)";  break;
+  }
+  pthread_mutex_lock(p->pWrMutex);
+  run_sql(p, 
+     "WITH RECURSIVE\n"
+     " c(i) AS (VALUES(%d) UNION ALL SELECT i+1 FROM c WHERE i<%d)\n"
+     "INSERT INTO %s SELECT %d, zeroblob(3000), i, printf('%%d',i), i FROM c;",
+     mn, mx, zTabDef, p->tid
+  );
+  pthread_mutex_unlock(p->pWrMutex);
+  p->nTest++;
+}
+
+/*
+** Set an error message on a worker
+*/
+static void worker_error(WorkerInfo *p, const char *zFormat, ...){
+  va_list ap;
+  p->nErr++;
+  sqlite3_free(p->zMsg);
+  va_start(ap, zFormat);
+  p->zMsg = sqlite3_vmprintf(zFormat, ap);
+  va_end(ap);
+}
+
+/*
+** Each thread runs the following function.
+*/
+static void *worker_thread(void *pArg){
+  WorkerInfo *p = (WorkerInfo*)pArg;
+  int iOuter;
+  int i;
+  int rc;
+  sqlite3_stmt *pStmt;
+
+  printf("worker %d startup\n", p->tid);  fflush(stdout);
+  for(iOuter=1; iOuter<=p->nWorker; iOuter++){
+    worker_open_connection(p, iOuter);
+    for(i=0; i<4; i++){
+      worker_add_content(p, i*100+1, (i+1)*100, (p->tid+iOuter)%3 + 1);
+      worker_add_content(p, i*100+1, (i+1)*100, (p->tid+iOuter+1)%3 + 1);
+      worker_add_content(p, i*100+1, (i+1)*100, (p->tid+iOuter+2)%3 + 1);
+    }
+
+    pStmt = prep_sql(p->db, "SELECT count(a) FROM t1 WHERE tid=%d", p->tid);
+    worker_trace(p, "query [%s]", sqlite3_sql(pStmt));
+    rc = sqlite3_step(pStmt);
+    if( rc!=SQLITE_ROW ){
+      worker_error(p, "Failed to step: %s", sqlite3_sql(pStmt));
+    }else if( sqlite3_column_int(pStmt, 0)!=400 ){
+      worker_error(p, "Wrong result: %d", sqlite3_column_int(pStmt,0));
+    }
+    sqlite3_finalize(pStmt);
+    if( p->nErr ) break;
+
+    if( ((iOuter+p->tid)%3)==0 ){
+      sqlite3_db_release_memory(p->db);
+      p->nTest++;
+    }
+
+    pthread_mutex_lock(p->pWrMutex);
+    run_sql(p, "BEGIN;");
+    run_sql(p, "UPDATE t1 SET c=NULL WHERE a=55");
+    run_sql(p, "UPDATE t2 SET f=NULL WHERE d=42");
+    run_sql(p, "UPDATE t3 SET z=NULL WHERE x=31");
+    run_sql(p, "ROLLBACK;");
+    p->nTest++;
+    pthread_mutex_unlock(p->pWrMutex);
+
+
+    if( iOuter==p->tid ){
+      pthread_mutex_lock(p->pWrMutex);
+      run_sql(p, "VACUUM");
+      pthread_mutex_unlock(p->pWrMutex);
+    }
+
+    pStmt = prep_sql(p->db,
+       "SELECT t1.rowid, t2.rowid, t3.rowid"
+       "  FROM t1, t2, t3"
+       " WHERE t1.tid=%d AND t2.tid=%d AND t3.tid=%d"
+       "   AND t1.a<>t2.d AND t2.d<>t3.x"
+       " ORDER BY 1, 2, 3"
+       ,p->tid, p->tid, p->tid);
+    worker_trace(p, "query [%s]", sqlite3_sql(pStmt));
+    for(i=0; i<p->nWorker; i++){
+      rc = sqlite3_step(pStmt);
+      if( rc!=SQLITE_ROW ){
+        worker_error(p, "Failed to step: %s", sqlite3_sql(pStmt));
+        break;
+      }
+      sched_yield();
+    }
+    sqlite3_finalize(pStmt);
+    if( p->nErr ) break;
+
+    worker_delete_all_content(p, (p->tid+iOuter)%2);
+    worker_close_connection(p);
+    p->db = 0;
+  }
+  worker_close_connection(p);
+  printf("worker %d finished\n", p->tid); fflush(stdout);
+  return 0;
+}
+
+int main(int argc, char **argv){
+  int nWorker = 0;         /* Number of worker threads */
+  int i;                   /* Loop counter */
+  WorkerInfo *aInfo;       /* Information for each worker */
+  unsigned wkrFlags = 0;   /* Default worker flags */
+  int nErr = 0;            /* Number of errors */
+  int nTest = 0;           /* Number of tests */
+  int rc;                  /* Return code */
+  sqlite3 *db = 0;         /* Main database connection */
+  pthread_mutex_t wrMutex; /* The write serialization mutex */
+  WorkerInfo infoTop;      /* WorkerInfo for the main thread */
+  WorkerInfo *p;           /* Pointer to infoTop */
+
+  sqlite3_config(SQLITE_CONFIG_MULTITHREAD);
+  for(i=1; i<argc; i++){
+    const char *z = argv[i];
+    if( z[0]=='-' ){
+      if( z[1]=='-' && z[2]!=0 ) z++;
+      if( strcmp(z,"-multithread")==0 ){
+        sqlite3_config(SQLITE_CONFIG_MULTITHREAD);
+        wkrFlags &= ~TT4_SERIALIZED;
+      }else if( strcmp(z,"-serialized")==0 ){
+        sqlite3_config(SQLITE_CONFIG_SERIALIZED);
+        wkrFlags |= TT4_SERIALIZED;
+      }else if( strcmp(z,"-wal")==0 ){
+        wkrFlags |= TT4_WAL;
+      }else if( strcmp(z,"-trace")==0 ){
+        wkrFlags |= TT4_TRACE;
+      }else{
+        fprintf(stderr, "unknown command-line option: %s\n", argv[i]);
+        exit(1);
+      }
+    }else if( z[0]>='1' && z[0]<='9' && nWorker==0 ){
+      nWorker = atoi(z);
+      if( nWorker<2 ){
+        fprintf(stderr, "minimum of 2 threads\n");
+        exit(1);
+      }
+    }else{
+      fprintf(stderr, "extra command-line argument: \"%s\"\n", argv[i]);
+      exit(1);
+    }
+  }
+  if( nWorker==0 ){ 
+    fprintf(stderr,
+       "usage:  %s ?OPTIONS? N\n"
+       "N is the number of threads and must be at least 2.\n"
+       "Options:\n"
+       "  --serialized\n"
+       "  --multithread\n"
+       "  --wal\n"
+       "  --trace\n"
+       ,argv[0]
+    );
+    exit(1);
+  }
+  if( !sqlite3_threadsafe() ){
+    fprintf(stderr, "requires a threadsafe build of SQLite\n");
+    exit(1);
+  }
+  sqlite3_initialize();
+  sqlite3_enable_shared_cache(1);
+  pthread_mutex_init(&wrMutex, 0);
+
+  /* Initialize the test database files */
+  (void)unlink("tt4-test1.db");
+  (void)unlink("tt4-test2.db");
+  (void)unlink("tt4-test3.db");
+  rc = sqlite3_open("tt4-test1.db", &db);
+  if( rc!=SQLITE_OK ){
+    fprintf(stderr, "Unable to open test database: tt4-test2.db\n");
+    exit(1);
+  }
+  memset(&infoTop, 0, sizeof(infoTop));
+  infoTop.db = db;
+  infoTop.wkrFlags = wkrFlags;
+  p = &infoTop;
+  if( wkrFlags & TT4_WAL ){
+    run_sql(p, "PRAGMA journal_mode=WAL");
+  }
+  run_sql(p, "PRAGMA synchronous=OFF");
+  run_sql(p, "CREATE TABLE IF NOT EXISTS t1(tid INTEGER, sp, a, b, c)");
+  run_sql(p, "CREATE INDEX t1tid ON t1(tid)");
+  run_sql(p, "CREATE INDEX t1ab ON t1(a,b)");
+  run_sql(p, "ATTACH 'tt4-test2.db' AS 'test2'");
+  run_sql(p, "CREATE TABLE IF NOT EXISTS test2.t2(tid INTEGER, sp, d, e, f)");
+  run_sql(p, "CREATE INDEX test2.t2tid ON t2(tid)");
+  run_sql(p, "CREATE INDEX test2.t2de ON t2(d,e)");
+  run_sql(p, "ATTACH 'tt4-test3.db' AS 'test3'");
+  run_sql(p, "CREATE TABLE IF NOT EXISTS test3.t3(tid INTEGER, sp, x, y, z)");
+  run_sql(p, "CREATE INDEX test3.t3tid ON t3(tid)");
+  run_sql(p, "CREATE INDEX test3.t3xy ON t3(x,y)");
+  aInfo = safe_malloc( sizeof(*aInfo)*nWorker );
+  memset(aInfo, 0, sizeof(*aInfo)*nWorker);
+  for(i=0; i<nWorker; i++){
+    aInfo[i].tid = i+1;
+    aInfo[i].nWorker = nWorker;
+    aInfo[i].wkrFlags = wkrFlags;
+    aInfo[i].mainDb = db;
+    aInfo[i].pWrMutex = &wrMutex;
+    rc = pthread_create(&aInfo[i].id, 0, worker_thread, &aInfo[i]);
+    if( rc!=0 ){
+      fprintf(stderr, "thread creation failed for thread %d\n", i+1);
+      exit(1);
+    }
+    sched_yield();
+  }
+  for(i=0; i<nWorker; i++){
+    pthread_join(aInfo[i].id, 0);
+    printf("Joined thread %d: %d errors in %d tests",
+           aInfo[i].tid, aInfo[i].nErr, aInfo[i].nTest);
+    if( aInfo[i].zMsg ){
+      printf(": %s\n", aInfo[i].zMsg);
+    }else{
+      printf("\n");
+    }
+    nErr += aInfo[i].nErr;
+    nTest += aInfo[i].nTest;
+    fflush(stdout);
+  }
+  sqlite3_close(db);
+  sqlite3_free(aInfo);
+  printf("Total %d errors in %d tests\n", nErr, nTest);
+  return nErr;
+}
diff --git a/test/threadtest5.c b/test/threadtest5.c
new file mode 100644
index 0000000000000000000000000000000000000000..6e6610ff66319638365206ebc0e4a0ef9db213e1
--- /dev/null
+++ b/test/threadtest5.c
@@ -0,0 +1,339 @@
+/*
+** 2021-05-12
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** Testing threading behavior when multiple database connections in separate
+** threads of the same process are all talking to the same database file.
+**
+** For best results, ensure that SQLite is compiled with HAVE_USLEEP=1
+**
+** Only works on unix platforms.
+**
+** Usage:
+**
+**      ./threadtest5  ?DATABASE?
+**
+** If DATABASE is omitted, it defaults to using file:/mem?vfs=memdb.
+*/
+#include "sqlite3.h"
+#include <pthread.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+
+/* Name of the in-memory database */
+static char *zDbName = 0;
+
+/* True for debugging */
+static int eVerbose = 0;
+
+/* If rc is not SQLITE_OK, then print an error message and stop
+** the test.
+*/
+static void error_out(int rc, const char *zCtx, int lineno){
+  if( rc!=SQLITE_OK ){
+    fprintf(stderr, "error %d at %d in \"%s\"\n", rc, lineno, zCtx);
+    exit(-1);
+  }
+}
+
+#if 0
+/* Return the number of milliseconds since the Julian epoch (-4714-11-24).
+*/
+static sqlite3_int64 gettime(void){
+  sqlite3_int64 tm;
+  sqlite3_vfs *pVfs = sqlite3_vfs_find(0);
+  pVfs->xCurrentTimeInt64(pVfs, &tm);
+  return tm;
+}
+#endif
+
+/* Run the SQL in the second argument.
+*/
+static int exec(
+  sqlite3 *db,
+  const char *zId,
+  int lineno,
+  const char *zFormat,
+  ...
+){
+  int rc;
+  va_list ap;
+  char *zSql;
+  va_start(ap, zFormat);
+  zSql = sqlite3_vmprintf(zFormat, ap);
+  va_end(ap);
+  if( eVerbose){
+    printf("%s:%d: [%s]\n", zId, lineno, zSql);
+    fflush(stdout);
+  }
+  rc = sqlite3_exec(db, zSql, 0, 0, 0);
+  if( rc && eVerbose ){
+    printf("%s:%d: return-code %d\n", zId, lineno, rc);
+    fflush(stdout);
+  }
+  sqlite3_free(zSql);
+  return rc;
+}
+
+/* Generate a perpared statement from the input SQL
+*/
+static sqlite3_stmt *prepare(
+  sqlite3 *db,
+  const char *zId,
+  int lineno,
+  const char *zFormat,
+  ...
+){
+  int rc;
+  va_list ap;
+  char *zSql;
+  sqlite3_stmt *pStmt = 0;
+  va_start(ap, zFormat);
+  zSql = sqlite3_vmprintf(zFormat, ap);
+  va_end(ap);
+  if( eVerbose){
+    printf("%s:%d: [%s]\n", zId, lineno, zSql);
+    fflush(stdout);
+  }
+
+  rc = sqlite3_prepare_v2(db, zSql, -1, &pStmt, 0);
+  if( rc ){
+    printf("%s:%d: ERROR - %s\n", zId, lineno, sqlite3_errmsg(db));
+    exit(-1);
+  }
+  sqlite3_free(zSql);
+  return pStmt;
+}
+
+/*
+** Wait for table zTable to exist in the schema.
+*/
+static void waitOnTable(sqlite3 *db, const char *zWorker, const char *zTable){
+  while(1){
+    int eFound = 0;
+    sqlite3_stmt *q = prepare(db, zWorker, __LINE__,
+             "SELECT 1 FROM sqlite_schema WHERE name=%Q", zTable);
+    if( sqlite3_step(q)==SQLITE_ROW && sqlite3_column_int(q,0)!=0 ){
+      eFound = 1;
+    }
+    sqlite3_finalize(q);
+    if( eFound ) return;
+    sqlite3_sleep(1);
+  }
+}
+
+/*
+** Return true if x is  a prime number
+*/
+static int isPrime(int x){
+  int i;
+  if( x<2 ) return 1;
+  for(i=2; i*i<=x; i++){
+    if( (x%i)==0 ) return 0;
+  }
+  return 1;
+}
+
+/* Each worker thread runs an instance of the following */
+static void *worker(void *pArg){
+  int rc;
+  const char *zName = (const char*)pArg;
+  sqlite3 *db = 0;
+
+  if( eVerbose ){
+    printf("%s: startup\n", zName);
+    fflush(stdout);
+  }
+
+  rc = sqlite3_open(zDbName, &db);
+  error_out(rc, "sqlite3_open", __LINE__);
+  sqlite3_busy_timeout(db, 2000);
+
+  while( 1 ){
+    sqlite3_stmt *q1;
+    int tid = -1;
+    q1 = prepare(db, zName, __LINE__,
+            "UPDATE task SET doneby=%Q"
+            " WHERE tid=(SELECT tid FROM task WHERE doneby IS NULL LIMIT 1)"
+            "RETURNING tid", zName
+    );
+    if( sqlite3_step(q1)==SQLITE_ROW ){
+      tid = sqlite3_column_int(q1,0);
+    }
+    sqlite3_finalize(q1);
+    if( tid<0 ) break;
+    if( eVerbose ){
+      printf("%s: starting task %d\n", zName, tid);
+      fflush(stdout);
+    }
+    if( tid==1 ){
+      exec(db, zName, __LINE__,
+         "CREATE TABLE IF NOT EXISTS p1(x INTEGER PRIMARY KEY);"
+      );
+    }else if( tid>=2 && tid<=51 ){
+      int a, b, i;
+      waitOnTable(db, zName, "p1");
+      a = (tid-2)*200 + 1;
+      b = a+200;
+      for(i=a; i<b; i++){
+        if( isPrime(i) ){
+          exec(db, zName, __LINE__,
+              "INSERT INTO p1(x) VALUES(%d)", i);
+        }
+      }
+    }else if( tid==52 ){
+      exec(db, zName, __LINE__,
+         "CREATE TABLE IF NOT EXISTS p2(x INTEGER PRIMARY KEY);"
+         "WITH RECURSIVE"
+         "  c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<10000)"
+         "INSERT INTO p2(x) SELECT x FROM c;"
+      );
+    }else if( tid>=53 && tid<=62 ){
+      int a, b, i;
+      waitOnTable(db, zName, "p2");
+      a = (tid-53)*10 + 2;
+      b = a+9;
+      for(i=a; i<=b; i++){
+        exec(db, zName, __LINE__,
+          "DELETE FROM p2 WHERE x>%d AND (x %% %d)==0", i, i);
+      }
+    }
+    if( eVerbose ){
+      printf("%s: completed task %d\n", zName, tid);
+      fflush(stdout);
+    }
+    sqlite3_sleep(1);
+  }
+
+  sqlite3_close(db);
+
+  if( eVerbose ){
+    printf("%s: exit\n", zName);
+    fflush(stdout);
+  }
+  return 0;
+}
+
+/* Print a usage comment and die */
+static void usage(const char *argv0){
+  printf("Usage: %s [options]\n", argv0);
+  printf(
+    "  -num-workers N      Run N worker threads\n"
+    "  -v                  Debugging output\n"
+  );
+  exit(1);
+}
+
+/* Maximum number of threads */
+#define MX_WORKER 100
+
+/*
+** Main routine
+*/
+int main(int argc, char **argv){
+  int i;
+  int nWorker = 4;
+  int rc;
+  sqlite3 *db = 0;
+  sqlite3_stmt *q;
+  pthread_t aWorker[MX_WORKER];
+  char aWorkerName[MX_WORKER][8];
+
+  for(i=1; i<argc; i++){
+    const char *zArg = argv[i];
+    if( zArg[0]!='-' ){
+      if( zDbName==0 ){
+        zDbName = argv[i];
+        continue;
+      }
+      printf("unknown argument: %s\n", zArg);
+      usage(argv[0]);
+    }
+    if( zArg[1]=='-' ) zArg++;
+    if( strcmp(zArg, "-v")==0 ){
+      eVerbose = 1;
+      continue;
+    }
+    if( strcmp(zArg, "-num-workers")==0 && i+1<argc ){
+      nWorker = atoi(argv[++i]);
+      if( nWorker<1 || nWorker>MX_WORKER ){
+        printf("number of threads must be between 1 and %d\n", MX_WORKER);
+        exit(1);
+      }
+      continue;
+    }
+    printf("unknown option: %s\n", argv[i]);
+    usage(argv[0]);
+  }
+  if( zDbName==0 ) zDbName = "file:/mem?vfs=memdb";
+
+  sqlite3_config(SQLITE_CONFIG_URI, (int)1);
+  rc = sqlite3_open(zDbName, &db);
+  error_out(rc, "sqlite3_open", __LINE__);
+
+  rc = exec(db, "SETUP", __LINE__,
+    "DROP TABLE IF EXISTS task;\n"
+    "DROP TABLE IF EXISTS p1;\n"
+    "DROP TABLE IF EXISTS p2;\n"
+    "DROP TABLE IF EXISTS verify;\n"
+    "CREATE TABLE IF NOT EXISTS task(\n"
+    "  tid INTEGER PRIMARY KEY,\n"
+    "  doneby TEXT\n"
+    ");\n"
+    "WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<100)"
+    "INSERT INTO task(tid) SELECT x FROM c;\n"
+  );
+  error_out(rc, "sqlite3_exec", __LINE__);
+
+  for(i=0; i<nWorker; i++){
+    sqlite3_snprintf(sizeof(aWorkerName[i]), aWorkerName[i],
+             "W%02d", i);
+    pthread_create(&aWorker[i], 0, worker, aWorkerName[i]);
+  }
+  for(i=0; i<nWorker; i++){
+    pthread_join(aWorker[i], 0);
+  }
+
+  for(i=0; i<nWorker; i++){
+    q = prepare(db, "MAIN", __LINE__,
+          "SELECT group_concat(tid,',') FROM task WHERE doneby=%Q",
+          aWorkerName[i]);
+    if( sqlite3_step(q)==SQLITE_ROW ){
+      printf("%s: %s\n", aWorkerName[i], sqlite3_column_text(q,0));
+    }
+    sqlite3_finalize(q);
+  }
+  q = prepare(db, "MAIN", __LINE__, "SELECT count(*) FROM p2");
+  if( sqlite3_step(q)!=SQLITE_ROW || sqlite3_column_int(q,0)<10 ){
+    printf("incorrect result\n");
+    exit(-1);
+  }
+  sqlite3_finalize(q);
+  q = prepare(db, "MAIN", __LINE__, "SELECT x FROM p1 EXCEPT SELECT x FROM p2");
+  if( sqlite3_step(q)==SQLITE_ROW ){
+    printf("incorrect result\n");
+    exit(-1);
+  }
+  sqlite3_finalize(q);
+  q = prepare(db, "MAIN", __LINE__, "SELECT x FROM p2 EXCEPT SELECT x FROM p1");
+  if( sqlite3_step(q)==SQLITE_ROW ){
+    printf("incorrect result\n");
+    exit(-1);
+  }
+  sqlite3_finalize(q);
+  printf("OK\n");
+
+  sqlite3_close(db);
+  return 0;
+}
diff --git a/test/time-wordcount.sh b/test/time-wordcount.sh
new file mode 100644
index 0000000000000000000000000000000000000000..df9edc6f2cdeaa401edc3f4df5a413b21c59010d
--- /dev/null
+++ b/test/time-wordcount.sh
@@ -0,0 +1,34 @@
+#!/bin/sh
+#
+# This script runs the wordcount program in different ways and generates
+# an output useful for performance comparisons.
+#
+
+# Select the source text to be analyzed.
+#
+if test "x$1" = "x";
+then echo "Usage: $0 FILENAME [ARGS...]"; exit 1;
+fi
+
+# Do test runs
+#
+rm -f wcdb1.db
+./wordcount --tag A: --timer --summary wcdb1.db $* --insert
+rm -f wcdb2.db
+./wordcount --tag B: --timer --summary wcdb2.db $* --insert --without-rowid
+rm -f wcdb1.db
+./wordcount --tag C: --timer --summary wcdb1.db $* --replace
+rm -f wcdb2.db
+./wordcount --tag D: --timer --summary wcdb2.db $* --replace --without-rowid
+rm -f wcdb1.db
+./wordcount --tag E: --timer --summary wcdb1.db $* --select
+rm -f wcdb2.db
+./wordcount --tag F: --timer --summary wcdb2.db $* --select --without-rowid
+./wordcount --tag G: --timer --summary wcdb1.db $* --query
+./wordcount --tag H: --timer --summary wcdb1.db $* --query --without-rowid
+./wordcount --tag I: --timer --summary wcdb1.db $* --delete
+./wordcount --tag J: --timer --summary wcdb2.db $* --delete --without-rowid
+
+# Clean up temporary files created.
+#
+rm -f wcdb1.db wcdb2.db
diff --git a/test/timediff1.test b/test/timediff1.test
new file mode 100644
index 0000000000000000000000000000000000000000..f8176d8810824b6b4880f85917713b0e6a62cab2
--- /dev/null
+++ b/test/timediff1.test
@@ -0,0 +1,222 @@
+# 2023-05-30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing date and time functions.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Skip this whole file if date and time functions are omitted
+# at compile-time
+#
+ifcapable {!datetime} {
+  finish_test
+  return
+}
+
+proc datetest {tnum expr result} {
+  do_test timediff-$tnum [subst {
+    execsql "SELECT coalesce($expr,'NULL')"
+  }] [list $result]
+}
+set tcl_precision 15
+
+
+# February overflow on a leap year
+datetest 1.1 {datetime('2000-01-31','+1 month')} {2000-03-02 00:00:00}
+datetest 1.2 {datetime('2004-01-29','+1 month')} {2004-02-29 00:00:00}
+datetest 1.3 {datetime('2000-03-01','-1 day')}   {2000-02-29 00:00:00}
+datetest 1.4 {datetime('2000-03-31','-1 month')} {2000-03-02 00:00:00}
+datetest 1.5 {datetime('2000-03-30','-1 month')} {2000-03-01 00:00:00}
+datetest 1.6 {datetime('2000-03-29','-1 month')} {2000-02-29 00:00:00}
+datetest 1.7 {datetime('2000-03-28','-1 month')} {2000-02-28 00:00:00}
+datetest 1.8 {datetime('2000-02-29','+1 year')}  {2001-03-01 00:00:00}
+datetest 1.9 {datetime('2000-02-29','+4 years')} {2004-02-29 00:00:00}
+
+datetest 1.10 {datetime('1998-11-10','+0001-03-19 12:34:56')} \
+                                                 {2000-02-29 12:34:56}
+datetest 1.11 {datetime('2000-01-31','+0004-01-00 12:34:56')} \
+                                                 {2004-03-02 12:34:56}
+datetest 1.12 {datetime('2000-01-29','+0008-01-00 12:34:56')} \
+                                                 {2008-02-29 12:34:56}
+datetest 1.13 {datetime('2001-03-31','-0001-01-00 06:10')} \
+                                                 {2000-03-01 17:50:00}
+
+
+# February overflow on a non-leap year
+datetest 2.1 {datetime('2001-01-31','+1 month')} {2001-03-03 00:00:00}
+datetest 2.2 {datetime('2005-01-29','+1 month')} {2005-03-01 00:00:00}
+datetest 2.3 {datetime('2001-03-01','-1 day')}   {2001-02-28 00:00:00}
+datetest 2.4 {datetime('2001-03-31','-1 month')} {2001-03-03 00:00:00}
+datetest 2.5 {datetime('2001-03-30','-1 month')} {2001-03-02 00:00:00}
+datetest 2.6 {datetime('2001-03-29','-1 month')} {2001-03-01 00:00:00}
+datetest 2.7 {datetime('2001-03-28','-1 month')} {2001-02-28 00:00:00}
+
+datetest 2.10 {datetime('1999-11-10','+0001-03-19 12:34:56')} \
+                                                 {2001-03-01 12:34:56}
+datetest 2.11 {datetime('2000-01-31','+0005-01-00 12:34:56')} \
+                                                 {2005-03-03 12:34:56}
+datetest 2.12 {datetime('2000-01-29','+0009-01-00 12:34:56')} \
+                                                 {2009-03-01 12:34:56}
+datetest 2.13 {datetime('2002-03-31','-0001-01-00 06:10')} \
+                                                 {2001-03-02 17:50:00}
+
+# timediff
+datetest 3.1 {timediff('2000-03-02','2000-01-31')} {+0000-01-00 00:00:00.000}
+datetest 3.2 {timediff('2000-01-31','2000-03-02')} {-0000-01-02 00:00:00.000}
+datetest 3.3 {timediff('2000-03-02','1999-01-31')} {+0001-01-00 00:00:00.000}
+datetest 3.4 {timediff('1999-01-31','2000-03-02')} {-0001-01-02 00:00:00.000}
+
+unset -nocomplain p1
+unset -nocomplain p2
+set p1 {
+  0   {-4713-11-24 12:00:00}
+  1   {-2000-04-30 05:19:26}
+  2   {0000-01-01 12:34:56}
+  3   {1776-07-04 13:00:00}
+  4   {1969-07-20 20:17}
+  5   {2440587.5}
+  6   {2000-05-29 14:26}
+  7   {2023-05-29 18:11}
+  8   {2050-05-29 14:26}
+  9   {4796-02-29 11:23:55.46}
+}
+set p2 {
+  A   {1066-10-14}
+  B   {1900-02-28 11:00}
+  C   {1900-03-01 12:00}
+  D   {1904-02-29 11:25}
+  E   {2000-02-29 13:00}
+  E   {2000-03-01 14:00}
+  F   {2001-03-31 15:15}
+  G   {2002-04-01 16:59}
+  H   {2003-04-30 17:00}
+  I   {2004-05-01 23:59:59}
+  J   {2005-06-01}
+  K   {2006-06-30 01:23:45}
+  L   {2007-12-31 02:00}
+  M   {2008-01-01 01:59}
+  N   {3152-07-04 12:00}
+  P   {9999-12-31 23:59:59}
+}
+
+foreach {x1 d1} $p1 {
+  foreach {x2 d2} $p2 {
+    set r1 [db one {SELECT datetime($d1)}]
+    do_execsql_test timediff-4-$x1$x2 {
+      SELECT datetime($d2, timediff($d1,$d2));
+    } [list $r1]
+    set r2 [db one {SELECT datetime($d2)}]
+    do_execsql_test timediff-4-$x2$x1 {
+      SELECT datetime($d1, timediff($d2,$d1));
+    } [list $r2]
+  }
+}
+
+# Partial time-diffs as modifiers
+#
+datetest 5-1 {datetime('2000-01-01','+0001-02-03')} {2001-03-04 00:00:00}
+datetest 5-2 {datetime('2000-01-01','+0001-02-03x')} {NULL}
+datetest 5-3 {datetime('2000-01-01','+0001-11-03')} {2001-12-04 00:00:00}
+datetest 5-4 {datetime('2000-01-01','+0001-12-03')} {NULL}
+datetest 5-5 {datetime('2000-01-01','+0001-02-30')} {2001-03-31 00:00:00}
+datetest 5-6 {datetime('2000-01-01','+0001-02-31')} {NULL}
+datetest 5-7 {datetime('2000-01-01','+0001-02-03 0')} {NULL}
+datetest 5-8 {datetime('2000-01-01','+0001-02-03 01')} {NULL}
+datetest 5-9 {datetime('2000-01-01','+0001-02-03 01:')} {NULL}
+datetest 5-10 {datetime('2000-01-01','+0001-02-03 01:0')} {NULL}
+datetest 5-11 {datetime('2000-01-01','+0001-02-03 01:02')} {2001-03-04 01:02:00}
+datetest 5-12 {datetime('2000-01-01','+0001-02-03 01:02:')} {NULL}
+datetest 5-13 {datetime('2000-01-01','+0001-02-03 01:02:0')} {NULL}
+datetest 5-14 {datetime('2000-01-01','+0001-02-03 01:02:03')} \
+                                                   {2001-03-04 01:02:03}
+datetest 5-15 {datetime('2000-01-01','+0001-02-03 01:02:03.')} NULL
+datetest 5-16 {datetime('2000-01-01','+0001-02-03 01:02:03.5')} \
+                                                   {2001-03-04 01:02:03}
+datetest 5-17 {datetime('2000-01-01','+0001-02-03 01:02:03.50')} \
+                                                   {2001-03-04 01:02:03}
+datetest 5-18 {datetime('2000-01-01','+0001-02-03 01:02:03.500')} \
+                                                   {2001-03-04 01:02:03}
+datetest 5-19 {datetime('2000-01-01','+0001-02-03 01:02:03.500x')} {NULL}
+datetest 5-20 {datetime('2000-01-01','+0001-02-03 01:02:03.500 x')} {NULL}
+
+unset -nocomplain p1
+unset -nocomplain p2
+set p1 {
+  a   {2000-01-01 00:00:00}
+  b   {2000-01-31 23:59:59}
+  c   {2000-02-01 00:00:00}
+  d   {2000-02-29 23:59:59}
+  e   {2000-03-01 00:00:00}
+  f   {2000-03-31 23:59:59}
+  g   {2000-04-01 00:00:00}
+  h   {2000-04-30 23:59:59}
+  i   {2000-05-01 00:00:00}
+  j   {2000-05-31 23:59:59}
+  k   {2000-06-01 00:00:00}
+  l   {2000-06-30 23:59:59}
+  m   {2000-07-01 00:00:00}
+  n   {2000-07-31 23:59:59}
+  o   {2000-08-01 00:00:00}
+  p   {2000-08-31 23:59:59}
+  q   {2000-09-01 00:00:00}
+  r   {2000-09-30 23:59:59}
+  s   {2000-10-01 00:00:00}
+  t   {2000-10-31 23:59:59}
+  u   {2000-11-01 00:00:00}
+  v   {2000-11-30 23:59:59}
+  w   {2000-12-01 00:00:00}
+  x   {2000-12-31 23:59:59}
+}
+set p2 {
+  A   {2001-01-01 00:00:00}
+  B   {2001-01-31 23:59:59}
+  C   {2001-02-01 00:00:00}
+  D   {2001-02-28 23:59:59}
+  E   {2001-03-01 00:00:00}
+  F   {2001-03-31 23:59:59}
+  G   {2001-04-01 00:00:00}
+  H   {2001-04-30 23:59:59}
+  I   {2001-05-01 00:00:00}
+  J   {2001-05-31 23:59:59}
+  K   {2001-06-01 00:00:00}
+  L   {2001-06-30 23:59:59}
+  M   {2001-07-01 00:00:00}
+  N   {2001-07-31 23:59:59}
+  O   {2001-08-01 00:00:00}
+  P   {2001-08-31 23:59:59}
+  Q   {2001-09-01 00:00:00}
+  R   {2001-09-30 23:59:59}
+  S   {2001-10-01 00:00:00}
+  T   {2001-10-31 23:59:59}
+  U   {2001-11-01 00:00:00}
+  V   {2001-11-30 23:59:59}
+  W   {2001-12-01 00:00:00}
+  X   {2001-12-31 23:59:59}
+}
+
+foreach {x1 d1} $p1 {
+  foreach {x2 d2} $p2 {
+    set r1 [db one {SELECT datetime($d1)}]
+    do_execsql_test timediff-6-$x1$x2 {
+      SELECT datetime($d2, timediff($d1,$d2));
+    } [list $r1]
+    set r2 [db one {SELECT datetime($d2)}]
+    do_execsql_test timediff-6-$x2$x1 {
+      SELECT datetime($d1, timediff($d2,$d1));
+    } [list $r2]
+  }
+}
+
+
+
+finish_test
diff --git a/test/tkt-02a8e81d44.test b/test/tkt-02a8e81d44.test
new file mode 100644
index 0000000000000000000000000000000000000000..7ca9866414f2bca3c48fb1bfebb6028758c88f53
--- /dev/null
+++ b/test/tkt-02a8e81d44.test
@@ -0,0 +1,36 @@
+# 2010 April 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that ticket [02a8e81d44] has been
+# fixed.  
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !compound {
+  finish_test
+  return
+}
+
+do_test tkt-02a838-1.1 {
+  execsql {
+    CREATE TABLE t1(a);
+    INSERT INTO t1 VALUES(1);
+    INSERT INTO t1 VALUES(2);
+    INSERT INTO t1 VALUES(4);
+    INSERT INTO t1 VALUES(5);
+    SELECT * FROM (SELECT a FROM t1 LIMIT 1) UNION ALL SELECT 3;
+  }
+} {1 3}
+
+finish_test
diff --git a/test/tkt-18458b1a.test b/test/tkt-18458b1a.test
new file mode 100644
index 0000000000000000000000000000000000000000..4a6127485939669f86571208269deea84e5de69c
--- /dev/null
+++ b/test/tkt-18458b1a.test
@@ -0,0 +1,52 @@
+# 2019 September 10
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. In particular,
+# that problems related to ticket [18458b1a] have been fixed.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix tkt-18458b1a
+
+foreach tn {1 2} {
+  reset_db
+  if {$tn==1} {
+    # Disable the flattener and push-down optimizations
+    optimization_control db query-flattener 0
+    optimization_control db push-down 0
+  } else {
+    # Enable them
+    optimization_control db query-flattener 1
+    optimization_control db push-down 1
+  }
+
+  db cache size 0
+
+  do_execsql_test $tn.1.1 {
+    CREATE TABLE t0(c0 COLLATE NOCASE);
+    INSERT INTO t0(c0) VALUES ('B');
+    CREATE VIEW v0(c0, c1) AS SELECT DISTINCT t0.c0, 'a' FROM t0;
+  } 
+
+  do_execsql_test $tn.1.2 {
+    SELECT count(*) FROM v0 WHERE c1 >= c0;
+  } 1
+
+  do_execsql_test $tn.1.3 {
+    SELECT count(*) FROM v0 WHERE NOT NOT (c1 >= c0);
+  } 1
+
+  do_execsql_test $tn.1.4 {
+    SELECT count(*) FROM v0 WHERE ((c1 >= c0) OR 0+0);
+  } 1
+}
+
+finish_test
diff --git a/test/tkt-26ff0c2d1e.test b/test/tkt-26ff0c2d1e.test
new file mode 100644
index 0000000000000000000000000000000000000000..d7c5c6bae3633d0438e30c0565b02f207cae37ad
--- /dev/null
+++ b/test/tkt-26ff0c2d1e.test
@@ -0,0 +1,35 @@
+# 2010 May 12
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script testing a bug found in the OP_Variable optimizer
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test bug-20100512-1 {
+  set DB [sqlite3_connection_pointer db]
+  set SQL {SELECT case when 1 then 99 else ? end + ?}
+  set STMT [sqlite3_prepare_v2 $DB $SQL -1 TAIL]
+  set TAIL
+} {}
+do_test bug-20100512-2 {
+  sqlite3_bind_parameter_count $STMT
+} 2
+do_test bug-20100512-3 {
+  sqlite3_bind_int $STMT 1 123
+  sqlite3_bind_int $STMT 2 456
+  sqlite3_step $STMT
+  sqlite3_column_int $STMT 0
+} {555}
+sqlite3_finalize $STMT
+
+finish_test
diff --git a/test/tkt-2a5629202f.test b/test/tkt-2a5629202f.test
new file mode 100644
index 0000000000000000000000000000000000000000..8f09c310a14bae2ff0d84aab16b0467aedcaa1f2
--- /dev/null
+++ b/test/tkt-2a5629202f.test
@@ -0,0 +1,76 @@
+# 2012 April 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# The tests in this file were used while developing the SQLite 4 code. 
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix tkt-2a5629202f
+
+# This procedure executes the SQL.  Then it checks to see if the OP_Sort
+# opcode was executed.  If an OP_Sort did occur, then "sort" is appended
+# to the result.  If no OP_Sort happened, then "nosort" is appended.
+#
+# This procedure is used to check to make sure sorting is or is not
+# occurring as expected.
+#
+proc cksort {sql} {
+  set data [execsql $sql]
+  if {[db status sort]} {set x sort} {set x nosort}
+  lappend data $x
+  return $data
+}
+
+do_execsql_test 1.1 {
+  CREATE TABLE t8(b TEXT, c TEXT);
+  INSERT INTO t8 VALUES('a',  'one');
+  INSERT INTO t8 VALUES('b',  'two');
+  INSERT INTO t8 VALUES(NULL, 'three');
+  INSERT INTO t8 VALUES(NULL, 'four');
+}
+
+do_execsql_test 1.2 {
+  SELECT coalesce(b, 'null') || '/' || c FROM t8 x ORDER BY x.b, x.c
+} {null/four null/three a/one b/two}
+
+do_execsql_test 1.3 {
+  CREATE UNIQUE INDEX i1 ON t8(b);
+  SELECT coalesce(b, 'null') || '/' || c FROM t8 x ORDER BY x.b, x.c
+} {null/four null/three a/one b/two}
+
+do_execsql_test 1.4 {
+  DROP INDEX i1;
+  CREATE UNIQUE INDEX i1 ON t8(b, c);
+  SELECT coalesce(b, 'null') || '/' || c FROM t8 x ORDER BY x.b, x.c
+} {null/four null/three a/one b/two}
+
+#-------------------------------------------------------------------------
+#
+
+do_execsql_test 2.1 {
+  CREATE TABLE t2(a, b NOT NULL, c);
+  CREATE UNIQUE INDEX t2ab ON t2(a, b);
+  CREATE UNIQUE INDEX t2ba ON t2(b, a);
+}
+
+do_test 2.2 {
+  cksort { SELECT * FROM t2 WHERE a = 10 ORDER BY a, b, c }
+} {nosort}
+
+do_test 2.3 {
+  cksort { SELECT * FROM t2 WHERE b = 10 ORDER BY a, b, c }
+} {sort}
+
+do_test 2.4 {
+  cksort { SELECT * FROM t2 WHERE a IS NULL ORDER BY a, b, c }
+} {sort}
+
+finish_test
diff --git a/test/tkt-2d1a5c67d.test b/test/tkt-2d1a5c67d.test
new file mode 100644
index 0000000000000000000000000000000000000000..5dad781692a947a2d72b7ea01246e19356a6c620
--- /dev/null
+++ b/test/tkt-2d1a5c67d.test
@@ -0,0 +1,129 @@
+# 2011 May 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. Specifically,
+# it tests that ticket [2d1a5c67dfc2363e44f29d9bbd57f7331851390a] has
+# been resolved.
+#
+# 
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix tkt-2d1a5c67d
+
+ifcapable {!vtab || !incrblob} {finish_test; return}
+if {[wal_is_capable]==0} {finish_test; return}
+
+for {set ii 1} {$ii<=10} {incr ii} {
+  do_test tkt-2d1a5c67d.1.$ii {
+    db close
+    forcedelete test.db test.db-wal
+    sqlite3 db test.db
+    db eval "PRAGMA cache_size=$::ii"
+    db eval {
+      PRAGMA journal_mode=WAL;
+      CREATE TABLE t1(a,b);
+      CREATE INDEX t1b ON t1(b);
+      CREATE TABLE t2(x,y UNIQUE);
+      INSERT INTO t2 VALUES(3,4);
+      BEGIN;
+      INSERT INTO t1(a,b) VALUES(1,2);
+      SELECT 'A', * FROM t2 WHERE y=4;
+      SELECT 'B', * FROM t1;
+      COMMIT;
+      SELECT 'C', * FROM t1;
+    }
+  } {wal A 3 4 B 1 2 C 1 2}
+}
+
+db close
+forcedelete test.db test.db-wal
+sqlite3 db test.db
+load_static_extension db wholenumber
+db eval {
+  PRAGMA journal_mode=WAL;
+  CREATE TABLE t1(a,b);
+  CREATE INDEX t1b ON t1(b);
+  CREATE TABLE t2(x,y);
+  CREATE VIRTUAL TABLE nums USING wholenumber;
+  INSERT INTO t2 SELECT value, randomblob(1000) FROM nums
+                 WHERE value BETWEEN 1 AND 1000;
+}
+
+for {set ii 1} {$ii<=10} {incr ii} {
+  do_test tkt-2d1a5c67d.2.$ii {
+    db eval "PRAGMA cache_size=$::ii"
+    db eval {
+      DELETE FROM t1;
+      BEGIN;
+      INSERT INTO t1(a,b) VALUES(1,2);
+      SELECT sum(length(y)) FROM t2;
+      COMMIT;
+      SELECT * FROM t1;
+    }
+  } {1000000 1 2}
+}
+
+db close
+sqlite3 db test.db
+
+
+do_execsql_test 3.1 {
+  PRAGMA cache_size = 10;
+  CREATE TABLE t3(a INTEGER PRIMARY KEY, b);
+  CREATE TABLE t4(a);
+}
+
+do_execsql_test 3.2 {
+  INSERT INTO t3 VALUES(NULL, randomblob(500));
+  INSERT INTO t3 SELECT NULL, b||b FROM t3;     -- 2
+  INSERT INTO t3 SELECT NULL, b||b FROM t3;     -- 4
+  INSERT INTO t3 SELECT NULL, b||b FROM t3;     -- 8
+  INSERT INTO t3 SELECT NULL, b||b FROM t3;     -- 16
+  INSERT INTO t3 SELECT NULL, b||b FROM t3;     -- 32
+  INSERT INTO t3 SELECT NULL, b||b FROM t3;     -- 64
+  INSERT INTO t3 SELECT NULL, b||b FROM t3;     -- 128
+}
+
+do_execsql_test 3.3 {
+  BEGIN;
+    INSERT INTO t4 VALUES('xyz');
+}
+
+do_test 3.4 {
+  set blobs [list]
+  for {set i 1} {$i<100} {incr i} {
+    set b [db incrblob -readonly t3 b $i]
+    fconfigure $b -translation binary
+    read $b
+    lappend blobs $b
+  }
+
+  execsql COMMIT
+  execsql { SELECT * FROM t4 WHERE a = 'xyz' }
+} {xyz}
+
+do_test 3.5 {
+  foreach b $blobs { close $b }
+  execsql { SELECT * FROM t4 WHERE a = 'xyz' }
+} {xyz}
+
+# Check that recovery works on the WAL file.
+#
+forcedelete test.db2-wal test.db2
+do_test 3.6 {
+  copy_file test.db-wal test.db2-wal
+  copy_file test.db test.db2
+  sqlite3 db2 test.db2
+  execsql { SELECT * FROM t4 WHERE a = 'xyz' } db2
+} {xyz}
+
+finish_test
diff --git a/test/tkt-2ea2425d34.test b/test/tkt-2ea2425d34.test
new file mode 100644
index 0000000000000000000000000000000000000000..9793d48bc178a9d119ff7da70fa395c2fe131e66
--- /dev/null
+++ b/test/tkt-2ea2425d34.test
@@ -0,0 +1,31 @@
+# 2009 September 2
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that ticket [2ea2425d34be] has been
+# fixed.  
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt-2ea24-1.1 {
+  db eval {
+    PRAGMA encoding=UTF16;
+    CREATE TABLE t1(a,b);
+    INSERT INTO t1 VALUES(1,'abc');
+    INSERT INTO t1 VALUES(2,'def');
+    INSERT INTO t1 VALUES(3,'ghi');
+    SELECT a FROM t1 WHERE length(b)<10 AND b<>'def' ORDER BY a;
+  }
+} {1 3}
+
+finish_test
diff --git a/test/tkt-31338dca7e.test b/test/tkt-31338dca7e.test
new file mode 100644
index 0000000000000000000000000000000000000000..41dd9d3bf8e9f7dda5625278b2df08b3259d47be
--- /dev/null
+++ b/test/tkt-31338dca7e.test
@@ -0,0 +1,178 @@
+# 2009 December 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that ticket [31338dca7e] has been
+# fixed.  Ticket [31338dca7e] demonstrates problems with the OR-clause
+# optimization in joins where the WHERE clause is of the form
+#
+#     (x AND y) OR z
+#
+# And the x and y subterms from from different tables of the join.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt-31338-1.1 {
+  db eval {
+    CREATE TABLE t1(x);
+    CREATE TABLE t2(y);
+    INSERT INTO t1 VALUES(111);
+    INSERT INTO t1 VALUES(222);
+    INSERT INTO t2 VALUES(333);
+    INSERT INTO t2 VALUES(444);
+    SELECT * FROM t1, t2
+     WHERE (x=111 AND y!=444) OR x=222
+     ORDER BY x, y;
+  }
+} {111 333 222 333 222 444}
+
+do_test tkt-31338-1.2 {
+  db eval {
+    CREATE INDEX t1x ON t1(x);
+    SELECT * FROM t1, t2
+     WHERE (x=111 AND y!=444) OR x=222
+     ORDER BY x, y;
+  }
+} {111 333 222 333 222 444}
+
+do_test tkt-31338-2.1 {
+  db eval {
+    CREATE TABLE t3(v,w);
+    CREATE TABLE t4(x,y);
+    CREATE TABLE t5(z);
+    INSERT INTO t3 VALUES(111,222);
+    INSERT INTO t3 VALUES(333,444);
+    INSERT INTO t4 VALUES(222,333);
+    INSERT INTO t4 VALUES(444,555);
+    INSERT INTO t5 VALUES(888);
+    INSERT INTO t5 VALUES(999);
+    
+    SELECT * FROM t3, t4, t5
+     WHERE (v=111 AND x=w AND z!=999) OR (v=333 AND x=444)
+     ORDER BY v, w, x, y, z;
+  }
+} {111 222 222 333 888 333 444 444 555 888 333 444 444 555 999}
+
+do_test tkt-31338-2.2 {
+  db eval {
+   CREATE INDEX t3v ON t3(v);
+   CREATE INDEX t4x ON t4(x);
+    SELECT * FROM t3, t4, t5
+     WHERE (v=111 AND x=w AND z!=999) OR (v=333 AND x=444)
+     ORDER BY v, w, x, y, z;
+  }
+} {111 222 222 333 888 333 444 444 555 888 333 444 444 555 999}
+
+
+# Ticket [2c2de252666662f5459904fc33a9f2956cbff23c]
+#
+do_test tkt-31338-3.1 {
+  foreach x [db eval {SELECT name FROM sqlite_master WHERE type='table'}] {
+     db eval "DROP TABLE $x"
+  }
+  db eval {
+    CREATE TABLE t1(a,b,c,d);
+    CREATE TABLE t2(e,f);
+    INSERT INTO t1 VALUES(1,2,3,4);
+    INSERT INTO t2 VALUES(10,-8);
+    CREATE INDEX t1a ON t1(a);
+    CREATE INDEX t1b ON t1(b);
+    CREATE TABLE t3(g);
+    INSERT INTO t3 VALUES(4);
+    CREATE TABLE t4(h);
+    INSERT INTO t4 VALUES(5);
+
+    SELECT * FROM t3 LEFT JOIN t1 ON d=g LEFT JOIN t4 ON c=h
+     WHERE (a=1 AND h=4)
+         OR (b IN (
+               SELECT x FROM (SELECT e+f AS x, e FROM t2 ORDER BY 1 LIMIT 2)
+               GROUP BY e
+            ));
+  }    
+} {4 1 2 3 4 {}}
+do_test tkt-31338-3.2 {
+  db eval {    
+    SELECT * FROM t3 LEFT JOIN t1 ON d=g LEFT JOIN t4 ON c=h
+     WHERE (a=1 AND h=4)
+         OR (b=2 AND b NOT IN (
+               SELECT x+1 FROM (SELECT e+f AS x, e FROM t2 ORDER BY 1 LIMIT 2)
+               GROUP BY e
+            ));
+  }    
+} {4 1 2 3 4 {}}
+do_test tkt-31338-3.3 {
+  db eval {    
+    SELECT * FROM t3 LEFT JOIN t1 ON d=g LEFT JOIN t4 ON c=h
+     WHERE (+a=1 AND h=4)
+         OR (b IN (
+               SELECT x FROM (SELECT e+f AS x, e FROM t2 ORDER BY 1 LIMIT 2)
+               GROUP BY e
+            ));
+  }    
+} {4 1 2 3 4 {}}
+do_test tkt-31338-3.4 {
+  db eval {    
+    SELECT * FROM t3 LEFT JOIN t1 ON d=g LEFT JOIN t4 ON c=h
+     WHERE (a=1 AND h=4)
+         OR (+b IN (
+               SELECT x FROM (SELECT e+f AS x, e FROM t2 ORDER BY 1 LIMIT 2)
+               GROUP BY e
+            ));
+  }    
+} {4 1 2 3 4 {}}
+
+do_test tkt-31338-3.5 {
+  db eval {
+    CREATE TABLE t5(a,b,c,d,e,f);
+    CREATE TABLE t6(g,h);
+    CREATE TRIGGER t6r AFTER INSERT ON t6 BEGIN
+      INSERT INTO t5    
+        SELECT * FROM t3 LEFT JOIN t1 ON d=g LEFT JOIN t4 ON c=h
+         WHERE (a=1 AND h=4)
+            OR (b IN (
+               SELECT x FROM (SELECT e+f AS x, e FROM t2 ORDER BY 1 LIMIT 2)
+               GROUP BY e
+            ));
+    END;
+    INSERT INTO t6 VALUES(88,99);
+    SELECT * FROM t5;
+  }    
+} {4 1 2 3 4 {}}
+
+do_test tkt-31338-3.6 {
+  db eval {    
+    INSERT INTO t1 VALUES(2,4,3,4);
+    INSERT INTO t1 VALUES(99,101,3,4);
+    INSERT INTO t1 VALUES(98,97,3,4);
+    SELECT * FROM t3 LEFT JOIN t1 ON d=g LEFT JOIN t4 ON c=h
+     WHERE (a=1 AND h=4)
+         OR (b IN (
+               SELECT x+a FROM (SELECT e+f AS x, e FROM t2 ORDER BY 1 LIMIT 2)
+               GROUP BY e
+            ));
+  }    
+} {4 2 4 3 4 {} 4 99 101 3 4 {}}
+
+do_test tkt-31338-3.7 {
+  db eval {
+    SELECT * FROM t3 LEFT JOIN t1 ON d=g LEFT JOIN t4 ON c=h
+     WHERE (a=1 AND h=4)
+         OR (b IN (
+               SELECT x FROM (SELECT e+f+a AS x, e FROM t2 ORDER BY 1 LIMIT 2)
+               GROUP BY e
+            ));
+  }    
+} {4 2 4 3 4 {} 4 99 101 3 4 {}}
+
+
+finish_test
diff --git a/test/tkt-313723c356.test b/test/tkt-313723c356.test
new file mode 100644
index 0000000000000000000000000000000000000000..5325fd229219b7d30996b502dacbd8f48cf89a2c
--- /dev/null
+++ b/test/tkt-313723c356.test
@@ -0,0 +1,57 @@
+# 2010 September 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that ticket [313723c356] has been
+# fixed.  
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+
+if {![wal_is_capable]} { finish_test ; return }
+
+do_execsql_test tkt-313723c356.1 {
+  PRAGMA page_size = 1024;
+  PRAGMA journal_mode = WAL;
+  CREATE TABLE t1(a, b);
+  CREATE INDEX i1 ON t1(a, b);
+  INSERT INTO t1 VALUES(randomblob(400), randomblob(400));
+  INSERT INTO t1 SELECT randomblob(400), randomblob(400) FROM t1;
+  INSERT INTO t1 SELECT randomblob(400), randomblob(400) FROM t1;
+  INSERT INTO t1 SELECT randomblob(400), randomblob(400) FROM t1;
+  INSERT INTO t1 SELECT randomblob(400), randomblob(400) FROM t1;
+} {wal}
+faultsim_save_and_close
+
+do_faultsim_test tkt-313723c356.2 -faults shmerr* -prep {
+  faultsim_restore_and_reopen
+  sqlite3 db2 test.db
+  db eval  { SELECT * FROM t1 }
+  db2 eval { UPDATE t1 SET a = randomblob(399) }
+  db2 close
+} -body {
+  # At this point, the cache contains all of table t1 and none of index i1. The
+  # cache is out of date. When the bug existed and the right xShmLock() fails
+  # in the following statement, the internal cache of the WAL header was
+  # being updated, but the contents of the page-cache not flushed. This causes
+  # the integrity-check in the "-test" code to fail, as it is comparing the
+  # cached (out-of-date) version of table t1 with the on disk (up-to-date)
+  # version of index i1.
+  #
+  execsql { SELECT min(rowid) FROM t1 }
+} -test {
+  faultsim_test_result {0 1}
+  faultsim_integrity_check
+}
+
+finish_test
diff --git a/test/tkt-385a5b56b9.test b/test/tkt-385a5b56b9.test
new file mode 100644
index 0000000000000000000000000000000000000000..4451389b1e073746d7ca44232a80d9133e8a90c4
--- /dev/null
+++ b/test/tkt-385a5b56b9.test
@@ -0,0 +1,50 @@
+# 2012 April 02
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# The tests in this file were used while developing the SQLite 4 code. 
+#
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix tkt-385a5b56b9
+
+do_execsql_test 1.0 { 
+  CREATE TABLE t1(x, y);
+  INSERT INTO t1 VALUES(1, NULL);
+  INSERT INTO t1 VALUES(2, NULL);
+  INSERT INTO t1 VALUES(1, NULL);
+}
+
+do_execsql_test 1.1 { SELECT DISTINCT x, y FROM t1 } {1 {} 2 {}}
+do_execsql_test 1.2 { CREATE UNIQUE INDEX i1 ON t1(x, y) }
+do_execsql_test 1.3 { SELECT DISTINCT x, y FROM t1 } {1 {} 2 {}}
+
+
+#-------------------------------------------------------------------------
+
+do_execsql_test 2.0 {
+  CREATE TABLE t2(x, y NOT NULL);
+  CREATE UNIQUE INDEX t2x ON t2(x);
+  CREATE UNIQUE INDEX t2y ON t2(y);
+}
+
+do_eqp_test 2.1 { SELECT DISTINCT x FROM t2 } \
+  {SCAN t2 USING COVERING INDEX t2x}
+
+do_eqp_test 2.2 { SELECT DISTINCT y FROM t2 } \
+  {SCAN t2 USING COVERING INDEX t2y}
+
+do_eqp_test 2.3 { SELECT DISTINCT x, y FROM t2 WHERE y=10 } \
+  {SEARCH t2 USING INDEX t2y (y=?)}
+
+do_eqp_test 2.4 { SELECT DISTINCT x, y FROM t2 WHERE x=10 } \
+  {SEARCH t2 USING INDEX t2x (x=?)}
+
+
+finish_test
diff --git a/test/tkt-38cb5df375.test b/test/tkt-38cb5df375.test
new file mode 100644
index 0000000000000000000000000000000000000000..e5e02671b76d7e97b1c2ae953d3972eb9a7b5a32
--- /dev/null
+++ b/test/tkt-38cb5df375.test
@@ -0,0 +1,326 @@
+# 2010 October 6
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. Specifically,
+# it tests that ticket [38cb5df375078d3f9711482d2a1615d09f6b3f33] has
+# been resolved.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !compound {
+  finish_test
+  return
+}
+
+do_test tkt-38cb5df375.0 {
+  execsql {
+    CREATE TABLE t1(a);
+    INSERT INTO t1 VALUES(1);
+    INSERT INTO t1 VALUES(2);
+    INSERT INTO t1 SELECT a+2 FROM t1;
+    INSERT INTO t1 SELECT a+4 FROM t1;
+  }
+} {}
+
+foreach ii {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16} {
+  do_test tkt-38cb5df375.1.$ii {
+    execsql {
+      SELECT * FROM (SELECT * FROM t1 ORDER BY a)
+      UNION ALL SELECT 9 FROM (SELECT a FROM t1)
+      LIMIT $::ii;
+    }
+  } [lrange {1 2 3 4 5 6 7 8 9 9 9 9 9 9 9 9} 0 [expr {$ii-1}]]
+}
+foreach ii {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16} {
+  do_test tkt-38cb5df375.2.$ii {
+    execsql {
+      SELECT 9 FROM (SELECT * FROM t1)
+      UNION ALL SELECT a FROM (SELECT a FROM t1 ORDER BY a)
+      LIMIT $::ii;
+    }
+  } [lrange {9 9 9 9 9 9 9 9 1 2 3 4 5 6 7 8} 0 [expr {$ii-1}]]
+}
+foreach ii {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16} {
+  do_test tkt-38cb5df375.3.$ii {
+    execsql {
+      SELECT a FROM (SELECT * FROM t1 ORDER BY a)
+      UNION ALL SELECT a FROM (SELECT a FROM t1 ORDER BY a)
+      LIMIT $::ii;
+    }
+  } [lrange {1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8} 0 [expr {$ii-1}]]
+}
+foreach ii {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16} {
+  do_test tkt-38cb5df375.4.$ii {
+    execsql {
+      SELECT 0 FROM (SELECT * FROM t1)
+      UNION ALL SELECT 9 FROM (SELECT a FROM t1)
+      LIMIT $::ii;
+    }
+  } [lrange {0 0 0 0 0 0 0 0 9 9 9 9 9 9 9 9} 0 [expr {$ii-1}]]
+}
+foreach ii {1 2 3 4} {
+  do_test tkt-38cb5df375.5.$ii {
+    execsql {
+      SELECT 0 FROM (SELECT * FROM t1)
+      UNION SELECT 9 FROM (SELECT a FROM t1)
+      LIMIT $::ii;
+    }
+  } [lrange {0 9} 0 [expr {$ii-1}]]
+}
+
+foreach ii {1 2 3 4 5 6 7 8 9 10 11} {
+  do_test tkt-38cb5df375.11.$ii {
+    execsql {
+      SELECT * FROM (SELECT * FROM t1 ORDER BY a LIMIT 3)
+      UNION ALL SELECT 9 FROM (SELECT a FROM t1)
+      LIMIT $::ii;
+    }
+  } [lrange {1 2 3 9 9 9 9 9 9 9 9} 0 [expr {$ii-1}]]
+}
+foreach ii {1 2 3 4 5 6 7 8 9 10 11} {
+  do_test tkt-38cb5df375.12.$ii {
+    execsql {
+      SELECT 9 FROM (SELECT * FROM t1)
+      UNION ALL SELECT a FROM (SELECT a FROM t1 ORDER BY a LIMIT 3)
+      LIMIT $::ii;
+    }
+  } [lrange {9 9 9 9 9 9 9 9 1 2 3} 0 [expr {$ii-1}]]
+}
+foreach ii {1 2 3 4 5 6} {
+  do_test tkt-38cb5df375.13.$ii {
+    execsql {
+      SELECT a FROM (SELECT * FROM t1 ORDER BY a LIMIT 3)
+      UNION ALL SELECT a FROM (SELECT a FROM t1 ORDER BY a LIMIT 3)
+      LIMIT $::ii;
+    }
+  } [lrange {1 2 3 1 2 3} 0 [expr {$ii-1}]]
+}
+foreach ii {1 2 3 4 5 6} {
+  do_test tkt-38cb5df375.14.$ii {
+    execsql {
+      SELECT 0 FROM (SELECT * FROM t1 LIMIT 3)
+      UNION ALL SELECT 9 FROM (SELECT a FROM t1 LIMIT 3)
+      LIMIT $::ii;
+    }
+  } [lrange {0 0 0 9 9 9} 0 [expr {$ii-1}]]
+}
+
+foreach ii {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16} {
+  do_test tkt-38cb5df375.21.$ii {
+    execsql {
+      SELECT * FROM (SELECT * FROM t1 ORDER BY a)
+      UNION ALL SELECT 9 FROM (SELECT a FROM t1)
+      ORDER BY 1
+      LIMIT $::ii;
+    }
+  } [lrange {1 2 3 4 5 6 7 8 9 9 9 9 9 9 9 9} 0 [expr {$ii-1}]]
+}
+foreach ii {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16} {
+  do_test tkt-38cb5df375.22.$ii {
+    execsql {
+      SELECT 9 FROM (SELECT * FROM t1)
+      UNION ALL SELECT a FROM (SELECT a FROM t1 ORDER BY a)
+      ORDER BY 1
+      LIMIT $::ii;
+    }
+  } [lrange {1 2 3 4 5 6 7 8 9 9 9 9 9 9 9 9} 0 [expr {$ii-1}]]
+}
+foreach ii {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16} {
+  do_test tkt-38cb5df375.23.$ii {
+    execsql {
+      SELECT a FROM (SELECT * FROM t1 ORDER BY a)
+      UNION ALL SELECT a FROM (SELECT a FROM t1 ORDER BY a)
+      ORDER BY 1 DESC
+      LIMIT $::ii;
+    }
+  } [lrange {8 8 7 7 6 6 5 5 4 4 3 3 2 2 1 1} 0 [expr {$ii-1}]]
+}
+foreach ii {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16} {
+  do_test tkt-38cb5df375.24.$ii {
+    execsql {
+      SELECT 0 FROM (SELECT * FROM t1)
+      UNION ALL SELECT 9 FROM (SELECT a FROM t1)
+      ORDER BY 1
+      LIMIT $::ii;
+    }
+  } [lrange {0 0 0 0 0 0 0 0 9 9 9 9 9 9 9 9} 0 [expr {$ii-1}]]
+}
+
+foreach ii {1 2 3 4 5 6 7 8 9 10 11} {
+  do_test tkt-38cb5df375.31.$ii {
+    execsql {
+      SELECT * FROM (SELECT * FROM t1 ORDER BY a LIMIT 3)
+      UNION ALL SELECT 9 FROM (SELECT a FROM t1)
+      ORDER BY 1
+      LIMIT $::ii;
+    }
+  } [lrange {1 2 3 9 9 9 9 9 9 9 9} 0 [expr {$ii-1}]]
+}
+foreach ii {1 2 3 4 5 6 7 8 9 10 11} {
+  do_test tkt-38cb5df375.32.$ii {
+    execsql {
+      SELECT 9 FROM (SELECT * FROM t1)
+      UNION ALL SELECT a FROM (SELECT a FROM t1 ORDER BY a LIMIT 3)
+      ORDER BY 1
+      LIMIT $::ii;
+    }
+  } [lrange {1 2 3 9 9 9 9 9 9 9 9} 0 [expr {$ii-1}]]
+}
+foreach ii {1 2 3 4 5 6 7} {
+  do_test tkt-38cb5df375.33.$ii {
+    execsql {
+      SELECT a FROM (SELECT * FROM t1 ORDER BY a LIMIT 4)
+      UNION ALL SELECT 90+a FROM (SELECT a FROM t1 ORDER BY a LIMIT 3)
+      ORDER BY 1
+      LIMIT $::ii;
+    }
+  } [lrange {1 2 3 4 91 92 93} 0 [expr {$ii-1}]]
+}
+foreach ii {1 2 3 4 5 6 7} {
+  do_test tkt-38cb5df375.34.$ii {
+    execsql {
+      SELECT a FROM (SELECT * FROM t1 ORDER BY a LIMIT 2)
+      UNION ALL SELECT a FROM (SELECT a FROM t1 ORDER BY a LIMIT 5)
+      ORDER BY 1
+      LIMIT $::ii;
+    }
+  } [lrange {1 1 2 2 3 4 5} 0 [expr {$ii-1}]]
+}
+foreach ii {1 2 3 4 5 6 7} {
+  do_test tkt-38cb5df375.35.$ii {
+    execsql {
+      SELECT a FROM (SELECT * FROM t1 ORDER BY a LIMIT 5)
+      UNION ALL SELECT a FROM (SELECT a FROM t1 ORDER BY a LIMIT 2)
+      ORDER BY 1
+      LIMIT $::ii;
+    }
+  } [lrange {1 1 2 2 3 4 5} 0 [expr {$ii-1}]]
+}
+foreach ii {1 2 3 4 5 6 7} {
+  do_test tkt-38cb5df375.35b.$ii {
+    execsql {
+      SELECT a FROM (SELECT * FROM t1 ORDER BY a LIMIT 5)
+      UNION ALL SELECT a+10 FROM (SELECT a FROM t1 ORDER BY a LIMIT 2)
+      ORDER BY 1
+      LIMIT $::ii;
+    }
+  } [lrange {1 2 3 4 5 11 12} 0 [expr {$ii-1}]]
+}
+foreach ii {1 2 3 4 5 6 7} {
+  do_test tkt-38cb5df375.35c.$ii {
+    execsql {
+      SELECT a FROM (SELECT * FROM t1 ORDER BY a LIMIT 5)
+      UNION SELECT a+10 FROM (SELECT a FROM t1 ORDER BY a LIMIT 2)
+      ORDER BY 1
+      LIMIT $::ii;
+    }
+  } [lrange {1 2 3 4 5 11 12} 0 [expr {$ii-1}]]
+}
+foreach ii {1 2 3 4 5 6 7} {
+  do_test tkt-38cb5df375.35d.$ii {
+    execsql {
+      SELECT a FROM (SELECT * FROM t1 ORDER BY a LIMIT 5)
+      INTERSECT SELECT a FROM (SELECT a FROM t1 ORDER BY a LIMIT 2)
+      ORDER BY 1
+      LIMIT $::ii;
+    }
+  } [lrange {1 2} 0 [expr {$ii-1}]]
+}
+foreach ii {1 2 3 4 5 6 7} {
+  do_test tkt-38cb5df375.35e.$ii {
+    execsql {
+      SELECT a FROM (SELECT * FROM t1 ORDER BY a LIMIT 5)
+      EXCEPT SELECT a FROM (SELECT a FROM t1 ORDER BY a LIMIT 2)
+      ORDER BY 1
+      LIMIT $::ii;
+    }
+  } [lrange {3 4 5} 0 [expr {$ii-1}]]
+}
+foreach ii {1 2 3 4 5 6 7} {
+  do_test tkt-38cb5df375.36.$ii {
+    execsql {
+      SELECT 0 FROM (SELECT * FROM t1 LIMIT 3)
+      UNION ALL SELECT 9 FROM (SELECT a FROM t1 LIMIT 4)
+      ORDER BY 1
+      LIMIT $::ii;
+    }
+  } [lrange {0 0 0 9 9 9 9} 0 [expr {$ii-1}]]
+}
+foreach ii {1 2 3 4 5 6 7} {
+  do_test tkt-38cb5df375.37.$ii {
+    execsql {
+      SELECT 0 FROM (SELECT * FROM t1 LIMIT 3)
+      UNION SELECT 9 FROM (SELECT a FROM t1 LIMIT 4)
+      ORDER BY 1
+      LIMIT $::ii;
+    }
+  } [lrange {0 9} 0 [expr {$ii-1}]]
+}
+foreach ii {1 2 3 4 5 6 7} {
+  do_test tkt-38cb5df375.38.$ii {
+    execsql {
+      SELECT 0 FROM (SELECT * FROM t1 LIMIT 3)
+      EXCEPT SELECT 9 FROM (SELECT a FROM t1 LIMIT 4)
+      ORDER BY 1
+      LIMIT $::ii;
+    }
+  } [lrange {0} 0 [expr {$ii-1}]]
+}
+
+foreach ii {1 2 3 4 5 6 7 8 9} {
+  do_test tkt-38cb5df375.41.$ii {
+    execsql {
+      SELECT 0 FROM (SELECT * FROM t1 LIMIT 3)
+      UNION ALL SELECT 9 FROM (SELECT a FROM t1 LIMIT 4)
+      UNION ALL SELECT 88 FROM (SELECT a FROM t1 LIMIT 2)
+      ORDER BY 1
+      LIMIT $::ii;
+    }
+  } [lrange {0 0 0 9 9 9 9 88 88} 0 [expr {$ii-1}]]
+}
+foreach ii {1 2 3 4 5 6 7 8 9} {
+  do_test tkt-38cb5df375.42.$ii {
+    execsql {
+      SELECT a FROM (SELECT * FROM t1 ORDER BY a LIMIT 3)
+      UNION ALL SELECT a+10 FROM (SELECT a FROM t1 ORDER BY a LIMIT 4)
+      UNION ALL SELECT a+20 FROM (SELECT a FROM t1 ORDER BY a LIMIT 2)
+      ORDER BY 1
+      LIMIT $::ii;
+    }
+  } [lrange {1 2 3 11 12 13 14 21 22} 0 [expr {$ii-1}]]
+}
+foreach ii {1 2 3 4 5 6 7 8 9} {
+  do_test tkt-38cb5df375.43.$ii {
+    execsql {
+      SELECT a FROM (SELECT * FROM t1 ORDER BY a LIMIT 3)
+      UNION SELECT a+10 FROM (SELECT a FROM t1 ORDER BY a LIMIT 4)
+      UNION SELECT a+20 FROM (SELECT a FROM t1 ORDER BY a LIMIT 2)
+      ORDER BY 1
+      LIMIT $::ii;
+    }
+  } [lrange {1 2 3 11 12 13 14 21 22} 0 [expr {$ii-1}]]
+}
+
+foreach ii {1 2 3 4 5 6 7} {
+  set jj [expr {7-$ii}]
+  do_test tkt-38cb5df375.51.$ii {
+    execsql {
+      SELECT a FROM (SELECT * FROM t1 ORDER BY a)
+      EXCEPT SELECT a FROM (SELECT a FROM t1 ORDER BY a LIMIT $::ii)
+      ORDER BY a DESC
+      LIMIT $::jj;
+    }
+  } [lrange {8 7 6 5 4 3 2 1} 0 [expr {$jj-1}]]
+}
+
+
+finish_test
diff --git a/test/tkt-3998683a16.test b/test/tkt-3998683a16.test
new file mode 100644
index 0000000000000000000000000000000000000000..919dc23368c434f0f824a8bff6bae091253c5988
--- /dev/null
+++ b/test/tkt-3998683a16.test
@@ -0,0 +1,46 @@
+# 2010 September 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements regression tests for SQLite library. Specifically,
+# it tests that ticket [3998683a16a7076e08f5585c1f4816414c8c653a] where in
+# floating point values with a decimal point at the beginning or end
+# of the mantissa are used.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt-3998683a16.1 {
+  db eval {
+    CREATE TABLE t1(x, y REAL);
+    INSERT INTO t1 VALUES(1, '1.0');
+    INSERT INTO t1 VALUES(2, '.125');
+    INSERT INTO t1 VALUES(3, '123.');
+    INSERT INTO t1 VALUES(4, '123.e+2');
+    INSERT INTO t1 VALUES(5, '.125e+3');
+    INSERT INTO t1 VALUES(6, '123e4');
+    INSERT INTO t1 VALUES(11, '  1.0');
+    INSERT INTO t1 VALUES(12, '  .125');
+    INSERT INTO t1 VALUES(13, '  123.');
+    INSERT INTO t1 VALUES(14, '  123.e+2');
+    INSERT INTO t1 VALUES(15, '  .125e+3');
+    INSERT INTO t1 VALUES(16, '  123e4');
+    INSERT INTO t1 VALUES(21, '1.0  ');
+    INSERT INTO t1 VALUES(22, '.125  ');
+    INSERT INTO t1 VALUES(23, '123.  ');
+    INSERT INTO t1 VALUES(24, '123.e+2  ');
+    INSERT INTO t1 VALUES(25, '.125e+3  ');
+    INSERT INTO t1 VALUES(26, '123e4  ');
+    SELECT x FROM t1 WHERE typeof(y)=='real' ORDER BY x;
+  }
+} {1 2 3 4 5 6 11 12 13 14 15 16 21 22 23 24 25 26}
+
+finish_test
diff --git a/test/tkt-3a77c9714e.test b/test/tkt-3a77c9714e.test
new file mode 100644
index 0000000000000000000000000000000000000000..734dff38f622c32a9ed79d135ad10038f7a57b12
--- /dev/null
+++ b/test/tkt-3a77c9714e.test
@@ -0,0 +1,86 @@
+# 2011-12-06
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that ticket [3a77c9714e] has been
+# fixed.  
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !compound {
+  finish_test
+  return
+}
+
+set testprefix "tkt-3a77c9714e"
+
+do_execsql_test 1.1 {
+  CREATE TABLE t1(t1_id INTEGER PRIMARY KEY, t1_title TEXT);
+  CREATE TABLE t2(t2_id INTEGER PRIMARY KEY, t2_title TEXT);
+  CREATE TABLE t3(t3_id INTEGER PRIMARY KEY, t3_title TEXT);
+
+  INSERT INTO t1 (t1_id, t1_title) VALUES (888, 'ABCDEF');
+  INSERT INTO t2 (t2_id, t2_title) VALUES (999, 'ABCDEF');
+  INSERT INTO t3 (t3_id, t3_title) VALUES (999, 'ABCDEF');
+}
+
+do_execsql_test 1.2 {
+  SELECT t1_title, t2_title
+  FROM t1 LEFT JOIN t2
+  WHERE
+    t2_id = (SELECT t3_id FROM
+     ( SELECT t3_id FROM t3 WHERE t3_title=t1_title LIMIT 500 )
+  )
+} {ABCDEF ABCDEF}
+
+do_execsql_test 2.1 {
+  CREATE TABLE [Beginnings] (
+    [Id] INTEGER PRIMARY KEY AUTOINCREMENT,[Title] TEXT, [EndingId] INTEGER
+  );
+  CREATE TABLE [Endings] (Id INT,Title TEXT,EndingId INT);
+  INSERT INTO Beginnings (Id, Title, EndingId) VALUES (1, 'FACTOR', 18);
+  INSERT INTO Beginnings (Id, Title, EndingId) VALUES (2, 'SWIMM', 18);
+  INSERT INTO Endings (Id, Title, EndingId) VALUES (1, 'ING', 18);
+}
+
+do_execsql_test 2.2 {
+  SELECT
+    SrcWord, Beginnings.Title
+    FROM 
+      (SELECT 'FACTORING' AS SrcWord UNION SELECT 'SWIMMING' AS SrcWord )
+    LEFT JOIN 
+      Beginnings
+    WHERE Beginnings.Id= (
+      SELECT BeginningId FROM (
+        SELECT SrcWord, B.Id as BeginningId, B.Title || E.Title As Connected
+        FROM Beginnings B LEFT JOIN Endings E ON B.EndingId=E.EndingId
+        WHERE Connected=SrcWord LIMIT 1
+      )
+    )
+} {FACTORING FACTOR SWIMMING SWIMM} 
+
+# Similar problem discovered by dbsqlfuzz on 2019-09-18
+#
+do_execsql_test 3.0 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(i INT PRIMARY KEY, a, b);
+  INSERT INTO t1 VALUES(NULL,'one','i');
+  CREATE INDEX i1a ON t1(a);
+  CREATE INDEX i1b ON t1(b);
+  SELECT (SELECT 1
+            FROM (SELECT 1 FROM t1 WHERE a=1 OR b='i')
+           WHERE a='o'
+              OR b IN (SELECT a=('b' IN (SELECT 'a'))))
+    FROM t1;
+} {{}}
+
+finish_test
diff --git a/test/tkt-3fe897352e.test b/test/tkt-3fe897352e.test
new file mode 100644
index 0000000000000000000000000000000000000000..bc2b2033e70c7d19d876de04fdac90c8387544b3
--- /dev/null
+++ b/test/tkt-3fe897352e.test
@@ -0,0 +1,60 @@
+# 2009 October 23
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that ticket [3fe897352e8d8] has been
+# fixed.  
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# The following tests use hex_to_utf16be() and hex_to_utf16le() which 
+# which are only available if SQLite is built with UTF16 support.
+ifcapable {!utf16} {
+  finish_test
+  return
+}
+
+do_test tkt-3fe89-1.1 {
+  db close
+  sqlite3 db :memory:
+  db eval {
+    PRAGMA encoding=UTF8;
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(hex_to_utf16be('D800'));
+    SELECT hex(x) FROM t1;
+  }
+} {EDA080}
+do_test tkt-3fe89-1.2 {
+  db eval {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES(hex_to_utf16le('00D8'));
+    SELECT hex(x) FROM t1;
+  }
+} {EDA080}
+do_test tkt-3fe89-1.3 {
+  db eval {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES(hex_to_utf16be('DFFF'));
+    SELECT hex(x) FROM t1;
+  }
+} {EDBFBF}
+do_test tkt-3fe89-1.4 {
+  db eval {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES(hex_to_utf16le('FFDF'));
+    SELECT hex(x) FROM t1;
+  }
+} {EDBFBF}
+
+
+finish_test
diff --git a/test/tkt-4a03edc4c8.test b/test/tkt-4a03edc4c8.test
new file mode 100644
index 0000000000000000000000000000000000000000..1908bcdf2cb814046d316d7da638221460a2869a
--- /dev/null
+++ b/test/tkt-4a03edc4c8.test
@@ -0,0 +1,46 @@
+# 2009 September 23
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that
+# ticket [4a03edc4c8c028c93e9269f64fc5e97f632c1166] has been fixed.  
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt-4a03ed-1.1 {
+  db eval {
+    CREATE TABLE t1(
+      a INTEGER PRIMARY KEY ON CONFLICT REPLACE,
+      b UNIQUE ON CONFLICT FAIL
+    );
+    INSERT INTO t1 VALUES(1, 1);
+    INSERT INTO t1 VALUES(2, 2);
+  }
+  catchsql {
+    BEGIN;
+      INSERT INTO t1 VALUES(1, 2);
+    COMMIT;
+  }
+} {1 {UNIQUE constraint failed: t1.b}}
+do_test tkt-4a03ed-1.2 {
+  db eval {
+    PRAGMA integrity_check;
+  }
+} {ok}
+do_test tkt-4a03ed-1.3 {
+  db eval {
+    SELECT * FROM t1 ORDER BY a;
+  }
+} {1 1 2 2}
+
+finish_test
diff --git a/test/tkt-4c86b126f2.test b/test/tkt-4c86b126f2.test
new file mode 100644
index 0000000000000000000000000000000000000000..3c5177ed31eb67eff3c492faad4f59920533d8ad
--- /dev/null
+++ b/test/tkt-4c86b126f2.test
@@ -0,0 +1,49 @@
+# 2014-02-11
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. Specifically,
+# it tests that ticket [4c86b126f22ad548fee0125337bdc9366912d9ac].
+#
+# When SQLite is compiled using SQLITE_ENABLE_STAT3 or SQLITE_ENABLE_STAT4,
+# it gets the wrong answer...
+#
+# The problem was introduced in SQLite 3.8.1.
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_execsql_test tkt-4c86b126f2-1.1 {
+  CREATE TABLE nodes(
+     local_relpath  TEXT PRIMARY KEY,
+     moved_to  TEXT
+  );
+  INSERT INTO nodes VALUES('A',NULL);
+  INSERT INTO nodes VALUES('A/B',NULL);
+  INSERT INTO nodes VALUES('',NULL);
+  INSERT INTO nodes VALUES('A/B/C-move',NULL);
+  INSERT INTO nodes VALUES('A/B/C','A/B/C-move');
+  INSERT INTO nodes VALUES('A/B-move',NULL);
+  INSERT INTO nodes VALUES('A/B-move/C-move',NULL);
+  INSERT INTO nodes VALUES('A/B-move/C','x');
+  SELECT local_relpath, moved_to
+   FROM nodes
+  WHERE (local_relpath = 'A/B' OR
+           ((local_relpath > 'A/B/') AND (local_relpath < 'A/B0')))
+    AND moved_to IS NOT NULL;
+} {A/B/C A/B/C-move}
+
+do_execsql_test tkt-4c86b126f2-2.1 {
+  CREATE TABLE t1(x TEXT UNIQUE, y TEXT UNIQUE, z);
+  INSERT INTO t1 VALUES('ghi','jkl','y');
+  SELECT * FROM t1 WHERE (x='ghi' OR y='jkl') AND z IS NOT NULL;
+} {ghi jkl y}
+
+
+finish_test
diff --git a/test/tkt-4dd95f6943.test b/test/tkt-4dd95f6943.test
new file mode 100644
index 0000000000000000000000000000000000000000..353031e74e3dc8831ff96d4a979b4fbd99ffac40
--- /dev/null
+++ b/test/tkt-4dd95f6943.test
@@ -0,0 +1,151 @@
+# 2013 March 13
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. 
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix tkt-4dd95f6943
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(x);
+  INSERT INTO t1 VALUES (3), (4), (2), (1), (5), (6);
+}
+
+foreach {tn1 idx} {
+  1 { CREATE INDEX i1 ON t1(x ASC) }
+  2 { CREATE INDEX i1 ON t1(x DESC) }
+} {
+  do_execsql_test 1.$tn1.1 { DROP INDEX IF EXISTS i1; }
+  do_execsql_test 1.$tn1.2 $idx
+
+  do_execsql_test 1.$tn1.3 {
+    SELECT x FROM t1 WHERE x IN(2, 4, 5) ORDER BY x ASC;
+  } {2 4 5}
+
+  do_execsql_test 1.$tn1.4 {
+    SELECT x FROM t1 WHERE x IN(2, 4, 5) ORDER BY x DESC;
+  } {5 4 2}
+}
+
+
+do_execsql_test 2.0 {
+  CREATE TABLE t2(x, y);
+  INSERT INTO t2 VALUES (5, 3), (5, 4), (5, 2), (5, 1), (5, 5), (5, 6);
+  INSERT INTO t2 VALUES (1, 3), (1, 4), (1, 2), (1, 1), (1, 5), (1, 6);
+  INSERT INTO t2 VALUES (3, 3), (3, 4), (3, 2), (3, 1), (3, 5), (3, 6);
+  INSERT INTO t2 VALUES (2, 3), (2, 4), (2, 2), (2, 1), (2, 5), (2, 6);
+  INSERT INTO t2 VALUES (4, 3), (4, 4), (4, 2), (4, 1), (4, 5), (4, 6);
+  INSERT INTO t2 VALUES (6, 3), (6, 4), (6, 2), (6, 1), (6, 5), (6, 6);
+
+  CREATE TABLE t3(a, b);
+  INSERT INTO t3 VALUES (2, 2), (4, 4), (5, 5);
+  CREATE UNIQUE INDEX t3i1 ON t3(a ASC);
+  CREATE UNIQUE INDEX t3i2 ON t3(b DESC);
+}
+
+foreach {tn1 idx} {
+  1 { CREATE INDEX i1 ON t2(x ASC,  y ASC) }
+  2 { CREATE INDEX i1 ON t2(x ASC,  y DESC) }
+  3 { CREATE INDEX i1 ON t2(x DESC, y ASC) }
+  4 { CREATE INDEX i1 ON t2(x DESC, y DESC) }
+
+  5 { CREATE INDEX i1 ON t2(y ASC,  x ASC) }
+  6 { CREATE INDEX i1 ON t2(y ASC,  x DESC) }
+  7 { CREATE INDEX i1 ON t2(y DESC, x ASC) }
+  8 { CREATE INDEX i1 ON t2(y DESC, x DESC) }
+} {
+  do_execsql_test 2.$tn1.1 { DROP INDEX IF EXISTS i1; }
+  do_execsql_test 2.$tn1.2 $idx
+
+  foreach {tn2 inexpr} {
+    3  "(2, 4, 5)"
+    4  "(SELECT a FROM t3)"
+    5  "(SELECT b FROM t3)"
+  } {
+    do_execsql_test 2.$tn1.$tn2.1 "
+      SELECT x, y FROM t2 WHERE x = 1 AND y IN $inexpr ORDER BY x ASC, y ASC;
+    " {1 2  1 4  1 5}
+
+    do_execsql_test 2.$tn1.$tn2.2 "
+      SELECT x, y FROM t2 WHERE x = 2 AND y IN $inexpr ORDER BY x ASC, y DESC;
+    " {2 5  2 4  2 2}
+
+    do_execsql_test 2.$tn1.$tn2.3 "
+      SELECT x, y FROM t2 WHERE x = 3 AND y IN $inexpr ORDER BY x DESC, y ASC;
+    " {3 2  3 4  3 5}
+
+    do_execsql_test 2.$tn1.$tn2.4 "
+      SELECT x, y FROM t2 WHERE x = 4 AND y IN $inexpr ORDER BY x DESC, y DESC;
+    " {4 5  4 4  4 2}
+    
+    do_execsql_test 2.$tn1.$tn2.5 "
+      SELECT a, x, y FROM t2, t3 WHERE a = 4 AND x = 1 AND y IN $inexpr 
+      ORDER BY a, x ASC, y ASC;
+    " {4 1 2  4 1 4  4 1 5}
+    do_execsql_test 2.$tn1.$tn2.6 "
+      SELECT a, x, y FROM t2, t3 WHERE a = 2 AND x = 1 AND y IN $inexpr 
+      ORDER BY x ASC, y ASC;
+    " {2 1 2  2 1 4  2 1 5}
+
+    do_execsql_test 2.$tn1.$tn2.7 "
+      SELECT a, x, y FROM t2, t3 WHERE a = 4 AND x = 1 AND y IN $inexpr 
+      ORDER BY a, x ASC, y DESC;
+    " {4 1 5  4 1 4  4 1 2}
+    do_execsql_test 2.$tn1.8 "
+      SELECT a, x, y FROM t2, t3 WHERE a = 2 AND x = 1 AND y IN $inexpr 
+      ORDER BY x ASC, y DESC;
+    " {2 1 5  2 1 4  2 1 2}
+
+    do_execsql_test 2.$tn1.$tn2.9 "
+      SELECT a, x, y FROM t2, t3 WHERE a = 4 AND x = 1 AND y IN $inexpr 
+      ORDER BY a, x DESC, y ASC;
+    " {4 1 2  4 1 4  4 1 5}
+    do_execsql_test 2.$tn1.10 "
+      SELECT a, x, y FROM t2, t3 WHERE a = 2 AND x = 1 AND y IN $inexpr 
+      ORDER BY x DESC, y ASC;
+    " {2 1 2  2 1 4  2 1 5}
+
+    do_execsql_test 2.$tn1.$tn2.11 "
+      SELECT a, x, y FROM t2, t3 WHERE a = 4 AND x = 1 AND y IN $inexpr 
+      ORDER BY a, x DESC, y DESC;
+    " {4 1 5  4 1 4  4 1 2}
+    do_execsql_test 2.$tn1.$tn2.12 "
+      SELECT a, x, y FROM t2, t3 WHERE a = 2 AND x = 1 AND y IN $inexpr 
+      ORDER BY x DESC, y DESC;
+    " {2 1 5  2 1 4  2 1 2}
+  }
+}
+
+do_execsql_test 3.0 {
+  CREATE TABLE t7(x);
+  INSERT INTO t7 VALUES (1), (2), (3);
+  CREATE INDEX i7 ON t7(x);
+
+  CREATE TABLE t8(y);
+  INSERT INTO t8 VALUES (1), (2), (3);
+}
+
+foreach {tn idxdir sortdir sortdata} {
+  1 ASC  ASC  {1 2 3}
+  2 ASC  DESC {3 2 1}
+  3 DESC ASC  {1 2 3}
+  4 ASC  DESC {3 2 1}
+} {
+
+  do_execsql_test 3.$tn "
+    DROP INDEX IF EXISTS i8;
+    CREATE UNIQUE INDEX i8 ON t8(y $idxdir);
+    SELECT x FROM t7 WHERE x IN (SELECT y FROM t8) ORDER BY x $sortdir;
+  " $sortdata
+}
+
+finish_test
diff --git a/test/tkt-4ef7e3cfca.test b/test/tkt-4ef7e3cfca.test
new file mode 100644
index 0000000000000000000000000000000000000000..fc1efdef666f967486c70cd7d307f40f87c10e99
--- /dev/null
+++ b/test/tkt-4ef7e3cfca.test
@@ -0,0 +1,68 @@
+# 2014-03-04
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements tests to verify that ticket [4ef7e3cfca] has been
+# fixed.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix tkt-4ef7e3cfca
+
+do_catchsql_test 1.1 {
+  CREATE TABLE x(a);
+  CREATE TRIGGER t AFTER INSERT ON x BEGIN
+    SELECT * FROM x WHERE abc.a = 1;
+  END;
+  INSERT INTO x VALUES('assert');
+} {1 {no such column: abc.a}}
+
+reset_db
+do_execsql_test 2.1 {
+  CREATE TABLE w(a);
+  CREATE TABLE x(a);
+  CREATE TABLE y(a);
+  CREATE TABLE z(a);
+
+  INSERT INTO x(a) VALUES(5);
+  INSERT INTO y(a) VALUES(10);
+
+  CREATE TRIGGER t AFTER INSERT ON w BEGIN
+    INSERT INTO z
+    SELECT (SELECT x.a + y.a FROM y) FROM x;
+  END;
+  INSERT INTO w VALUES('incorrect');
+}
+do_execsql_test 2.2 {
+  SELECT * FROM z;
+} {15}
+
+reset_db
+do_execsql_test 3.1 {
+  CREATE TABLE w(a);
+  CREATE TABLE x(b);
+  CREATE TABLE y(a);
+  CREATE TABLE z(a);
+
+  INSERT INTO x(b) VALUES(5);
+  INSERT INTO y(a) VALUES(10);
+
+  CREATE TRIGGER t AFTER INSERT ON w BEGIN
+    INSERT INTO z
+    SELECT (SELECT x.b + y.a FROM y) FROM x;
+  END;
+  INSERT INTO w VALUES('assert');
+}
+do_execsql_test 3.2 {
+  SELECT * FROM z;
+} {15}
+
+finish_test
diff --git a/test/tkt-54844eea3f.test b/test/tkt-54844eea3f.test
new file mode 100644
index 0000000000000000000000000000000000000000..7b04f6935d0710c00c32f419ba3fcc2c178a347b
--- /dev/null
+++ b/test/tkt-54844eea3f.test
@@ -0,0 +1,67 @@
+# 2011 July 8
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing that bug [54844eea3f] has been fixed.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+set ::testprefix tkt-54844eea3f
+
+do_test 1.0 {
+  execsql {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY);
+    INSERT INTO t1 VALUES(1);
+    INSERT INTO t1 VALUES(4);
+
+    CREATE TABLE t2(b INTEGER PRIMARY KEY);
+    INSERT INTO t2 VALUES(1);
+    INSERT INTO t2 VALUES(2);
+    INSERT INTO t2 SELECT b+2 FROM t2;
+    INSERT INTO t2 SELECT b+4 FROM t2;
+    INSERT INTO t2 SELECT b+8 FROM t2;
+    INSERT INTO t2 SELECT b+16 FROM t2;
+
+    CREATE TABLE t3(c INTEGER PRIMARY KEY);
+    INSERT INTO t3 VALUES(1);
+    INSERT INTO t3 VALUES(2);
+    INSERT INTO t3 VALUES(3);
+  }
+} {}
+
+do_test 1.1 {
+  execsql {
+    SELECT 'test-2', t3.c, (
+          SELECT count(*) 
+          FROM t1 JOIN (SELECT DISTINCT t3.c AS p FROM t2) AS x ON t1.a=x.p
+    )
+    FROM t3;
+  }
+} {test-2 1 1 test-2 2 0 test-2 3 0}
+
+do_test 1.2 {
+  execsql {
+    CREATE TABLE t4(a, b, c);
+    INSERT INTO t4 VALUES('a', 1, 'one');
+    INSERT INTO t4 VALUES('a', 2, 'two');
+    INSERT INTO t4 VALUES('b', 1, 'three');
+    INSERT INTO t4 VALUES('b', 2, 'four');
+    SELECT ( 
+      SELECT c FROM (
+        SELECT * FROM t4 WHERE a=out.a ORDER BY b LIMIT 10 OFFSET 1
+      ) WHERE b=out.b
+    ) FROM t4 AS out;
+  }
+} {{} two {} four}
+
+
+finish_test
diff --git a/test/tkt-5d863f876e.test b/test/tkt-5d863f876e.test
new file mode 100644
index 0000000000000000000000000000000000000000..9a2fa3f470f8b0701c3ee6b338082ee66fe67c39
--- /dev/null
+++ b/test/tkt-5d863f876e.test
@@ -0,0 +1,55 @@
+# 2011 January 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that ticket [5d863f876e] has been
+# fixed.  
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+set ::testprefix tkt-5d863f876e
+if {![wal_is_capable]} {finish_test ; return }
+
+do_multiclient_test tn {
+  do_test $tn.1 {
+    sql1 {
+      CREATE TABLE t1(a, b);
+      CREATE INDEX i1 ON t1(a, b);
+      INSERT INTO t1 VALUES(1, 2);
+      INSERT INTO t1 VALUES(3, 4);
+      PRAGMA journal_mode = WAL;
+      VACUUM;
+      PRAGMA journal_mode = DELETE;
+    }
+  } {wal delete}
+
+  do_test $tn.2 {
+    sql2 { SELECT * FROM t1 } 
+  } {1 2 3 4}
+
+  do_test $tn.3 {
+    sql1 {
+      INSERT INTO t1 VALUES(5, 6);
+      PRAGMA journal_mode = WAL;
+      VACUUM;
+      PRAGMA journal_mode = DELETE;
+    }
+  } {wal delete}
+
+  do_test $tn.2 {
+    sql2 { PRAGMA integrity_check }
+  } {ok}
+}
+
+
+finish_test
diff --git a/test/tkt-5e10420e8d.test b/test/tkt-5e10420e8d.test
new file mode 100644
index 0000000000000000000000000000000000000000..a2dfefdb0b6a3bdab639b3c4887defebf8fad73f
--- /dev/null
+++ b/test/tkt-5e10420e8d.test
@@ -0,0 +1,50 @@
+# 2010 August 23
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_execsql_test tkt-5e10420e8d.1 {
+  PRAGMA page_size = 1024;
+  PRAGMA auto_vacuum = incremental;
+
+  CREATE TABLE t1(x);
+  CREATE TABLE t2(x);
+  CREATE TABLE t3(x);
+} {}
+
+do_execsql_test tkt-5e10420e8d.2 {
+  INSERT INTO t3 VALUES(randomblob(500 + 1024*248));
+  INSERT INTO t1 VALUES(randomblob(1500));
+  INSERT INTO t2 VALUES(randomblob(500 + 1024*248));
+
+  DELETE FROM t3;
+  DELETE FROM t2;
+  DELETE FROM t1;
+} {}
+
+do_execsql_test tkt-5e10420e8d.3 {
+  PRAGMA incremental_vacuum(248)
+} {}
+
+do_execsql_test tkt-5e10420e8d.4 {
+  PRAGMA incremental_vacuum(1)
+} {}
+
+db close
+sqlite3 db test.db
+
+do_execsql_test tkt-5e10420e8d.5 {
+  PRAGMA integrity_check;
+} {ok}
+
+finish_test
diff --git a/test/tkt-5ee23731f.test b/test/tkt-5ee23731f.test
new file mode 100644
index 0000000000000000000000000000000000000000..761382a4d1311848d67aa7578d0d70297baa590a
--- /dev/null
+++ b/test/tkt-5ee23731f.test
@@ -0,0 +1,42 @@
+# 2009 October 13
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that ticket [5ee23731f15] has been
+# fixed.  
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt-5ee237-1.1 {
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+  db eval {
+    CREATE TABLE t1(x UNIQUE);
+    INSERT INTO t1 VALUES(1);
+    INSERT INTO t1 VALUES(2);
+    INSERT INTO t1 SELECT x+2 FROM t1;
+    INSERT INTO t1 SELECT x+4 FROM t1;
+    INSERT INTO t1 SELECT x+8 FROM t1;
+  }
+  db close
+  sqlite3 db test.db -readonly 1
+  set rc [catch {
+    db eval {SELECT rowid, x FROM t1 ORDER BY x} {
+      db eval {UPDATE t1 SET x=x+1 WHERE rowid=:rowid}
+    }
+  } msg]
+  lappend rc $msg
+} {1 {attempt to write a readonly database}}
+
+finish_test
diff --git a/test/tkt-6bfb98dfc0.test b/test/tkt-6bfb98dfc0.test
new file mode 100644
index 0000000000000000000000000000000000000000..675a3fc2e9fe7db1708e44152d06af6f5794cb82
--- /dev/null
+++ b/test/tkt-6bfb98dfc0.test
@@ -0,0 +1,61 @@
+# 2013 March 27
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. Specifically,
+# it tests that ticket [6bfb98dfc0]
+#
+# The final INSERT in the script below reports that the database is
+# corrupt (SQLITE_CORRUPT) and aborts even though the database is not
+# corrupt.
+#
+#    PRAGMA page_size=512;
+#    CREATE TABLE t1(x INTEGER PRIMARY KEY, y);
+#    INSERT INTO t1 VALUES(1,randomblob(400));
+#    INSERT INTO t1 VALUES(2,randomblob(400));
+#    INSERT INTO t1 SELECT x+2, randomblob(400) FROM t1;
+#    INSERT INTO t1 SELECT x+4, randomblob(400) FROM t1;
+#    INSERT INTO t1 SELECT x+8, randomblob(400) FROM t1;
+#    INSERT INTO t1 SELECT x+16, randomblob(400) FROM t1;
+#    INSERT INTO t1 SELECT x+32, randomblob(400) FROM t1;
+#    INSERT INTO t1 SELECT x+64, randomblob(400) FROM t1 WHERE x<10;
+#    CREATE TRIGGER r1 AFTER INSERT ON t1 WHEN new.x=74 BEGIN
+#      DELETE FROM t1;
+#      INSERT INTO t1 VALUES(75, randomblob(400));
+#      INSERT INTO t1 VALUES(76, randomblob(400));
+#    END;
+#    INSERT INTO t1 VALUES(74, randomblob(400));
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt-6bfb98dfc0.100 {
+  db eval {
+    PRAGMA page_size=512;
+    CREATE TABLE t1(x INTEGER PRIMARY KEY, y);
+    INSERT INTO t1 VALUES(1,randomblob(400));
+    INSERT INTO t1 VALUES(2,randomblob(400));
+    INSERT INTO t1 SELECT x+2, randomblob(400) FROM t1;
+    INSERT INTO t1 SELECT x+4, randomblob(400) FROM t1;
+    INSERT INTO t1 SELECT x+8, randomblob(400) FROM t1;
+    INSERT INTO t1 SELECT x+16, randomblob(400) FROM t1;
+    INSERT INTO t1 SELECT x+32, randomblob(400) FROM t1;
+    INSERT INTO t1 SELECT x+64, randomblob(400) FROM t1 WHERE x<10;
+    CREATE TRIGGER r1 AFTER INSERT ON t1 WHEN new.x=74 BEGIN
+      DELETE FROM t1;
+      INSERT INTO t1 VALUES(75, randomblob(400));
+      INSERT INTO t1 VALUES(76, randomblob(400));
+    END;
+    INSERT INTO t1 VALUES(74, randomblob(400));
+    SELECT x, length(y) FROM t1 ORDER BY x;
+  }
+} {75 400 76 400}
+    
+finish_test
diff --git a/test/tkt-752e1646fc.test b/test/tkt-752e1646fc.test
new file mode 100644
index 0000000000000000000000000000000000000000..3837df8664ead2af7bd34b715b0dfb3068cfb547
--- /dev/null
+++ b/test/tkt-752e1646fc.test
@@ -0,0 +1,30 @@
+# 2010 April 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that ticket [752e1646fc] has been
+# fixed.  
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt-752e1646fc-1.1 {
+  execsql {
+    CREATE TABLE "test" ("letter" VARCHAR(1) PRIMARY KEY, "number" INTEGER NOT NULL);
+    INSERT INTO "test" ("letter", "number") VALUES('b', 1); 
+    INSERT INTO "test" ("letter", "number") VALUES('a', 2); 
+    INSERT INTO "test" ("letter", "number") VALUES('c', 2); 
+    SELECT DISTINCT "number" FROM (SELECT "letter", "number" FROM "test" ORDER BY "letter", "number" LIMIT 1) AS "test";
+  }
+} {2}
+
+finish_test
diff --git a/test/tkt-78e04e52ea.test b/test/tkt-78e04e52ea.test
new file mode 100644
index 0000000000000000000000000000000000000000..1b49f5d6d281ef0b254a52896458157d70268d78
--- /dev/null
+++ b/test/tkt-78e04e52ea.test
@@ -0,0 +1,66 @@
+# 2009 December 8
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# Verify that we can create zero-length tables.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt-78e04-1.0 {
+  execsql {
+    CREATE TABLE ""("" UNIQUE, x CHAR(100));
+    CREATE TABLE t2(x);
+    INSERT INTO ""("") VALUES(1);
+    INSERT INTO t2 VALUES(2);
+    SELECT * FROM "", t2;
+  }
+} {1 {} 2}
+do_test tkt-78e04-1.1 {
+  catchsql {
+    INSERT INTO ""("") VALUES(1);
+  }
+} {1 {UNIQUE constraint failed: .}}
+do_test tkt-78e04-1.2 {
+  execsql {
+    PRAGMA table_info("");
+  }
+} {0 {} {} 0 {} 0 1 x CHAR(100) 0 {} 0}
+do_test tkt-78e04-1.3 {
+  execsql {
+    CREATE INDEX i1 ON ""("" COLLATE nocase);
+  }
+} {}
+do_test tkt-78e04-1.4 {
+ db eval {EXPLAIN QUERY PLAN SELECT "" FROM "" WHERE "" LIKE '1e5%';}
+} {/*SCAN  USING COVERING INDEX i1*/}
+do_test tkt-78e04-1.5 {
+  execsql {
+    DROP TABLE "";
+    SELECT name FROM sqlite_master;
+  }
+} {t2}
+
+do_test tkt-78e04-2.1 {
+  execsql {
+    CREATE INDEX "" ON t2(x);
+    EXPLAIN QUERY PLAN SELECT * FROM t2 WHERE x=5;
+  }
+} {/*SEARCH t2 USING COVERING INDEX  (x=?)*/}
+do_test tkt-78e04-2.2 {
+  execsql {
+    DROP INDEX "";
+    EXPLAIN QUERY PLAN SELECT * FROM t2 WHERE x=2;
+  }
+} {/*SCAN t2*/}
+
+finish_test
diff --git a/test/tkt-7a31705a7e6.test b/test/tkt-7a31705a7e6.test
new file mode 100644
index 0000000000000000000000000000000000000000..fd862484ea20e77646e700dee3d26a0a08d2de30
--- /dev/null
+++ b/test/tkt-7a31705a7e6.test
@@ -0,0 +1,27 @@
+# 2013 February 26
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements regression tests for SQLite library. Specifically,
+# it tests that ticket [7a31705a7e6c95d514e6f20a6900f436bbc9fed8] in the
+# name resolver has been fixed.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_execsql_test tkt-7a31705a7e6-1.1 {
+  CREATE TABLE t1 (a INTEGER PRIMARY KEY);
+  CREATE TABLE t2 (a INTEGER PRIMARY KEY, b INTEGER);
+  CREATE TABLE t2x (b INTEGER PRIMARY KEY);
+  SELECT t1.a FROM ((t1 JOIN t2 ON t1.a=t2.a) AS x JOIN t2x ON x.b=t2x.b) as y;
+} {}
+
+finish_test
diff --git a/test/tkt-7bbfb7d442.test b/test/tkt-7bbfb7d442.test
new file mode 100644
index 0000000000000000000000000000000000000000..c020b515e258d1c2bfde710a890ef80a138c7766
--- /dev/null
+++ b/test/tkt-7bbfb7d442.test
@@ -0,0 +1,154 @@
+# 2011 December 9
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that ticket [7bbfb7d442] has been
+# fixed.  
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix tkt-7bbfb7d442
+
+do_execsql_test 1.1 {
+  CREATE TABLE t1(a, b);
+  INSERT INTO t1 VALUES(1, 'one');
+  INSERT INTO t1 VALUES(2, 'two');
+  INSERT INTO t1 VALUES(3, 'three');
+
+  CREATE TABLE t2(c, d);
+  INSERT INTO t2 VALUES('one', 'I');
+  INSERT INTO t2 VALUES('two', 'II');
+  INSERT INTO t2 VALUES('three', 'III');
+
+  CREATE TABLE t3(t3_a PRIMARY KEY, t3_d);
+  CREATE TRIGGER t3t AFTER INSERT ON t3 WHEN new.t3_d IS NULL BEGIN
+    UPDATE t3 SET t3_d = (
+      SELECT d FROM 
+        (SELECT * FROM t2 WHERE (new.t3_a%2)=(rowid%2) LIMIT 10),
+        (SELECT * FROM t1 WHERE (new.t3_a%2)=(rowid%2) LIMIT 10)
+      WHERE a = new.t3_a AND b = c
+    ) WHERE t3_a = new.t3_a;
+  END;
+}
+
+do_execsql_test 1.2 {
+  INSERT INTO t3(t3_a) VALUES(1);
+  INSERT INTO t3(t3_a) VALUES(2);
+  INSERT INTO t3(t3_a) VALUES(3);
+  SELECT * FROM t3;
+} {1 I 2 II 3 III}
+
+do_execsql_test 1.3 { DELETE FROM t3 }
+
+ifcapable compound {
+  do_execsql_test 1.4 {
+    INSERT INTO t3(t3_a) SELECT 1 UNION SELECT 2 UNION SELECT 3;
+    SELECT * FROM t3;
+  } {1 I 2 II 3 III}
+}
+
+
+
+#-------------------------------------------------------------------------
+# The following test case - 2.* - is from the original bug report as 
+# posted to the mailing list.
+#
+do_execsql_test 2.1 {
+  CREATE TABLE InventoryControl (
+    InventoryControlId INTEGER PRIMARY KEY AUTOINCREMENT,
+    SKU INTEGER NOT NULL,
+    Variant INTEGER NOT NULL DEFAULT 0,
+    ControlDate DATE NOT NULL,
+    ControlState INTEGER NOT NULL DEFAULT -1,
+    DeliveredQty VARCHAR(30)
+  );
+  
+  CREATE TRIGGER TGR_InventoryControl_AfterInsert
+  AFTER INSERT ON InventoryControl 
+  FOR EACH ROW WHEN NEW.ControlState=-1 BEGIN 
+
+  INSERT OR REPLACE INTO InventoryControl(
+        InventoryControlId,SKU,Variant,ControlDate,ControlState,DeliveredQty
+  ) SELECT
+          T1.InventoryControlId AS InventoryControlId,
+          T1.SKU AS SKU,
+          T1.Variant AS Variant,
+          T1.ControlDate AS ControlDate,
+          1 AS ControlState,
+          COALESCE(T2.DeliveredQty,0) AS DeliveredQty
+      FROM (
+          SELECT
+              NEW.InventoryControlId AS InventoryControlId,
+              II.SKU AS SKU,
+              II.Variant AS Variant,
+              COALESCE(LastClosedIC.ControlDate,NEW.ControlDate) AS ControlDate
+          FROM
+              InventoryItem II
+          LEFT JOIN
+              InventoryControl LastClosedIC
+              ON  LastClosedIC.InventoryControlId IN ( SELECT 99999 )
+          WHERE
+              II.SKU=NEW.SKU AND
+              II.Variant=NEW.Variant
+      )   T1
+      LEFT JOIN (
+          SELECT
+              TD.SKU AS SKU,
+              TD.Variant AS Variant,
+              10 AS DeliveredQty
+          FROM
+              TransactionDetail TD
+          WHERE
+              TD.SKU=NEW.SKU AND
+              TD.Variant=NEW.Variant
+      )   T2
+      ON  T2.SKU=T1.SKU AND
+          T2.Variant=T1.Variant;
+  END;
+  
+  CREATE TABLE InventoryItem (
+    SKU INTEGER NOT NULL,
+    Variant INTEGER NOT NULL DEFAULT 0,
+    DeptCode INTEGER NOT NULL,
+    GroupCode INTEGER NOT NULL,
+    ItemDescription VARCHAR(120) NOT NULL,
+    PRIMARY KEY(SKU, Variant)
+  );
+  
+  INSERT INTO InventoryItem VALUES(220,0,1,170,'Scoth Tampon Recurer');
+  INSERT INTO InventoryItem VALUES(31,0,1,110,'Fromage');
+  
+  CREATE TABLE TransactionDetail (
+    TransactionId INTEGER NOT NULL,
+    SKU INTEGER NOT NULL,
+    Variant INTEGER NOT NULL DEFAULT 0,
+    PRIMARY KEY(TransactionId, SKU, Variant)
+  );
+  INSERT INTO TransactionDetail(TransactionId, SKU, Variant) VALUES(44, 31, 0);
+  
+  
+  INSERT INTO InventoryControl(SKU, Variant, ControlDate) SELECT 
+      II.SKU AS SKU, II.Variant AS Variant, '2011-08-30' AS ControlDate 
+      FROM InventoryItem II;
+}
+
+do_execsql_test 2.2 {
+  SELECT SKU, DeliveredQty FROM InventoryControl WHERE SKU=31
+} {31 10}
+
+do_execsql_test 2.3 {
+  SELECT CASE WHEN DeliveredQty=10 THEN 'TEST PASSED!' ELSE 'TEST FAILED!' END 
+  FROM InventoryControl WHERE SKU=31; 
+} {{TEST PASSED!}}
+
+
+finish_test
diff --git a/test/tkt-80ba201079.test b/test/tkt-80ba201079.test
new file mode 100644
index 0000000000000000000000000000000000000000..ea0799b5683c12275bf2484f8acb5349a29cbd00
--- /dev/null
+++ b/test/tkt-80ba201079.test
@@ -0,0 +1,195 @@
+# 2010 December 6
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. Specifically,
+# it tests that ticket [80ba201079ea608071d22a57856b940ea3ac53ce] is
+# resolved.  That ticket is about an incorrect result that appears when
+# an index is added.  The root cause is that a constant is being used
+# without initialization when the OR optimization applies in the WHERE clause.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix tkt-80ba201079
+
+do_test tkt-80ba2-100 {
+  db eval {
+    CREATE TABLE t1(a);
+    INSERT INTO t1 VALUES('A');
+    CREATE TABLE t2(b);
+    INSERT INTO t2 VALUES('B');
+    CREATE TABLE t3(c);
+    INSERT INTO t3 VALUES('C');
+    SELECT * FROM t1, t2
+     WHERE (a='A' AND b='X')
+        OR (a='A' AND EXISTS (SELECT * FROM t3 WHERE c='C'));
+  }
+} {A B}
+do_test tkt-80ba2-101 {
+  db eval {
+    CREATE INDEX i1 ON t1(a);
+    SELECT * FROM t1, t2
+     WHERE (a='A' AND b='X')
+        OR (a='A' AND EXISTS (SELECT * FROM t3 WHERE c='C'));
+  }
+} {A B}
+do_test tkt-80ba2-102 {
+  optimization_control db factor-constants 0
+  db cache flush
+  db eval {
+    SELECT * FROM t1, t2
+     WHERE (a='A' AND b='X')
+        OR (a='A' AND EXISTS (SELECT * FROM t3 WHERE c='C'));
+  }
+} {A B}
+optimization_control db all 1
+
+# Verify that the optimization_control command is actually working
+#
+do_test tkt-80ba2-150 {
+  optimization_control db factor-constants 1
+  db cache flush
+  set x1 [db eval {EXPLAIN 
+    SELECT * FROM t1, t2
+     WHERE (a='A' AND b='X')
+        OR (a='A' AND EXISTS (SELECT * FROM t3 WHERE c='C'));}]
+  optimization_control db factor-constants 0
+  db cache flush
+  set x2 [db eval {EXPLAIN 
+    SELECT * FROM t1, t2
+     WHERE (a='A' AND b='X')
+        OR (a='A' AND EXISTS (SELECT * FROM t3 WHERE c='C'));}]
+
+  expr {$x1==$x2}
+} {0}
+
+do_test tkt-80ba2-200 {
+  db eval {
+    CREATE TABLE entry_types (
+                        id     integer primary key,
+                        name   text
+                    );
+    INSERT INTO "entry_types" VALUES(100,'cli_command');
+    INSERT INTO "entry_types" VALUES(300,'object_change');
+    CREATE TABLE object_changes (
+                        change_id    integer primary key,
+                        system_id    int,
+                        obj_id       int,
+                        obj_context  text,
+                        change_type  int,
+                        command_id   int
+                    );
+    INSERT INTO "object_changes" VALUES(1551,1,114608,'exported_pools',1,2114);
+    INSERT INTO "object_changes" VALUES(2048,1,114608,'exported_pools',2,2319);
+    CREATE TABLE timeline (
+                        rowid        integer primary key,
+                        timestamp    text,
+                        system_id    int,
+                        entry_type   int,
+                        entry_id     int
+                    );
+    INSERT INTO "timeline" VALUES(6735,'2010-11-21 17:08:27.000',1,300,2048);
+    INSERT INTO "timeline" VALUES(6825,'2010-11-21 17:09:21.000',1,300,2114);
+    SELECT entry_type,
+           entry_types.name,
+           entry_id
+      FROM timeline JOIN entry_types ON entry_type = entry_types.id
+     WHERE (entry_types.name = 'cli_command' AND entry_id=2114)
+        OR (entry_types.name = 'object_change'
+             AND entry_id IN (SELECT change_id
+                              FROM object_changes
+                               WHERE obj_context = 'exported_pools'));
+  }
+} {300 object_change 2048}
+do_test tkt-80ba2-201 {
+  db eval {
+    CREATE INDEX timeline_entry_id_idx on timeline(entry_id);
+    SELECT entry_type,
+           entry_types.name,
+           entry_id
+      FROM timeline JOIN entry_types ON entry_type = entry_types.id
+     WHERE (entry_types.name = 'cli_command' AND entry_id=2114)
+        OR (entry_types.name = 'object_change'
+             AND entry_id IN (SELECT change_id
+                              FROM object_changes
+                               WHERE obj_context = 'exported_pools'));
+  }
+} {300 object_change 2048}
+do_test tkt-80ba2-202 {
+  optimization_control db factor-constants 0
+  db cache flush
+  db eval {
+    SELECT entry_type,
+           entry_types.name,
+           entry_id
+      FROM timeline JOIN entry_types ON entry_type = entry_types.id
+     WHERE (entry_types.name = 'cli_command' AND entry_id=2114)
+        OR (entry_types.name = 'object_change'
+             AND entry_id IN (SELECT change_id
+                              FROM object_changes
+                               WHERE obj_context = 'exported_pools'));
+  }
+} {300 object_change 2048}
+
+#-------------------------------------------------------------------------
+#
+
+drop_all_tables
+do_execsql_test 301 {
+  CREATE TABLE t1(a, b, c);
+  CREATE INDEX i1 ON t1(a);
+  CREATE INDEX i2 ON t1(b);
+  CREATE TABLE t2(d, e);
+
+  INSERT INTO t1 VALUES('A', 'B', 'C');
+  INSERT INTO t2 VALUES('D', 'E');
+}
+
+do_execsql_test 302 {
+  SELECT * FROM t1, t2 WHERE
+    (a='A' AND d='E') OR
+    (b='B' AND c IN ('C', 'D', 'E'))
+} {A B C D E}
+
+do_execsql_test 303 {
+  SELECT * FROM t1, t2 WHERE
+    (a='A' AND d='E') OR
+    (b='B' AND c IN (SELECT c FROM t1))
+} {A B C D E}
+
+ifcapable compound {
+  do_execsql_test 304 {
+    SELECT * FROM t1, t2 WHERE
+      (a='A' AND d='E') OR
+      (b='B' AND c IN (SELECT 'B' UNION SELECT 'C' UNION SELECT 'D'))
+  } {A B C D E}
+}
+
+do_execsql_test 305 {
+  SELECT * FROM t1, t2 WHERE
+    (b='B' AND c IN ('C', 'D', 'E')) OR
+    (a='A' AND d='E')
+} {A B C D E}
+
+do_execsql_test 306 {
+  SELECT * FROM t1, t2 WHERE
+    (b='B' AND c IN (SELECT c FROM t1)) OR
+    (a='A' AND d='E')
+} {A B C D E}
+
+ifcapable compound {
+  do_execsql_test 307 {
+    SELECT * FROM t1, t2 WHERE
+      (b='B' AND c IN (SELECT 'B' UNION SELECT 'C' UNION SELECT 'D')) OR
+      (a='A' AND d='E')
+  } {A B C D E}
+}
+
+finish_test
diff --git a/test/tkt-80e031a00f.test b/test/tkt-80e031a00f.test
new file mode 100644
index 0000000000000000000000000000000000000000..56449dba23b741a6b977fb2c0b2e4dc6e974487e
--- /dev/null
+++ b/test/tkt-80e031a00f.test
@@ -0,0 +1,205 @@
+# 2010 July 14
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. Specifically,
+# it tests that ticket [80e031a00f45dca877ed92b225209cfa09280f4f] has been
+# resolved.  That ticket is about IN and NOT IN operators with empty-set
+# right-hand sides.  Such expressions should always return TRUE or FALSE
+# even if the left-hand side is NULL.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+source $testdir/malloc_common.tcl
+
+# EVIDENCE-OF: R-52275-55503 When the right operand is an empty set, the
+# result of IN is false and the result of NOT IN is true, regardless of
+# the left operand and even if the left operand is NULL.
+#
+# EVIDENCE-OF: R-64309-54027 Note that SQLite allows the parenthesized
+# list of scalar values on the right-hand side of an IN or NOT IN
+# operator to be an empty list but most other SQL database engines and
+# the SQL92 standard require the list to contain at least one element.
+#
+do_execsql_test tkt-80e031a00f.1 {SELECT 1 IN ()} 0
+do_execsql_test tkt-80e031a00f.1b {SELECT 1 IN (2)} 0
+do_execsql_test tkt-80e031a00f.1c {SELECT 1 IN (2,3,4,5,6,7,8,9)} 0
+do_execsql_test tkt-80e031a00f.2 {SELECT 1 NOT IN ()} 1
+do_execsql_test tkt-80e031a00f.2b {SELECT 1 NOT IN (2)} 1
+do_execsql_test tkt-80e031a00f.2c {SELECT 1 NOT IN (2,3,4,5,6,7,8,9)} 1
+do_execsql_test tkt-80e031a00f.3 {SELECT null IN ()} 0
+do_execsql_test tkt-80e031a00f.4 {SELECT null NOT IN ()} 1
+do_execsql_test tkt-80e031a00f.5 {
+  CREATE TABLE t1(x);
+  SELECT 1 IN t1;
+} 0
+do_execsql_test tkt-80e031a00f.6 {SELECT 1 NOT IN t1} 1
+do_execsql_test tkt-80e031a00f.7 {SELECT null IN t1} 0
+do_execsql_test tkt-80e031a00f.8 {SELECT null NOT IN t1} 1
+do_execsql_test tkt-80e031a00f.9 {
+  CREATE TABLE t2(y INTEGER PRIMARY KEY);
+  SELECT 1 IN t2;
+} 0
+do_execsql_test tkt-80e031a00f.10 {SELECT 1 NOT IN t2} 1
+do_execsql_test tkt-80e031a00f.11 {SELECT null IN t2} 0
+do_execsql_test tkt-80e031a00f.12 {SELECT null NOT IN t2} 1
+do_execsql_test tkt-80e031a00f.13 {
+  CREATE TABLE t3(z INT UNIQUE);
+  SELECT 1 IN t3;
+} 0
+do_execsql_test tkt-80e031a00f.14 {SELECT 1 NOT IN t3} 1
+do_execsql_test tkt-80e031a00f.15 {SELECT null IN t3} 0
+do_execsql_test tkt-80e031a00f.16 {SELECT null NOT IN t3} 1
+do_execsql_test tkt-80e031a00f.17 {SELECT 1 IN (SELECT x+y FROM t1, t2)} 0
+do_execsql_test tkt-80e031a00f.18 {SELECT 1 NOT IN (SELECT x+y FROM t1,t2)} 1
+do_execsql_test tkt-80e031a00f.19 {SELECT null IN (SELECT x+y FROM t1,t2)} 0
+do_execsql_test tkt-80e031a00f.20 {SELECT null NOT IN (SELECT x+y FROM t1,t2)} 1
+do_execsql_test tkt-80e031a00f.21 {SELECT 1.23 IN ()} 0
+do_execsql_test tkt-80e031a00f.22 {SELECT 1.23 NOT IN ()} 1
+do_execsql_test tkt-80e031a00f.23 {SELECT 1.23 IN t1} 0
+do_execsql_test tkt-80e031a00f.24 {SELECT 1.23 NOT IN t1} 1
+do_execsql_test tkt-80e031a00f.25 {SELECT 'hello' IN ()} 0
+do_execsql_test tkt-80e031a00f.26 {SELECT 'hello' NOT IN ()} 1
+do_execsql_test tkt-80e031a00f.27 {SELECT 'hello' IN t1} 0
+do_execsql_test tkt-80e031a00f.28 {SELECT 'hello' NOT IN t1} 1
+do_execsql_test tkt-80e031a00f.29 {SELECT x'303132' IN ()} 0
+do_execsql_test tkt-80e031a00f.30 {SELECT x'303132' NOT IN ()} 1
+do_execsql_test tkt-80e031a00f.31 {SELECT x'303132' IN t1} 0
+do_execsql_test tkt-80e031a00f.32 {SELECT x'303132' NOT IN t1} 1
+
+# EVIDENCE-OF: R-50221-42915 The result of an IN or NOT IN operator is
+# determined by the following matrix: Left operand is NULL Right operand
+# contains NULL Right operand is an empty set Left operand found within
+# right operand Result of IN operator Result of NOT IN operator no no no
+# no false true does not matter no yes no false true no does not matter
+# no yes true false no yes no no NULL NULL yes does not matter no does
+# not matter NULL NULL
+#
+# Row 1:
+do_execsql_test tkt-80e031a00f.100 {SELECT 1 IN (2,3,4)} 0
+do_execsql_test tkt-80e031a00f.101 {SELECT 1 NOT IN (2,3,4)} 1
+do_execsql_test tkt-80e031a00f.102 {SELECT 'a' IN ('b','c','d')} 0
+do_execsql_test tkt-80e031a00f.103 {SELECT 'a' NOT IN ('b','c','d')} 1
+do_test tkt-80e031a00f.104 {
+  db eval {
+     CREATE TABLE t4(a UNIQUE);
+     CREATE TABLE t5(b INTEGER PRIMARY KEY);
+     CREATE TABLE t6(c);
+     INSERT INTO t4 VALUES(2);
+     INSERT INTO t4 VALUES(3);
+     INSERT INTO t4 VALUES(4);
+     INSERT INTO t5 SELECT * FROM t4;
+     INSERT INTO t6 SELECT * FROM t4;
+     CREATE TABLE t4n(a UNIQUE);
+     CREATE TABLE t6n(c);
+     INSERT INTO t4n SELECT * FROM t4;
+     INSERT INTO t4n VALUES(null);
+     INSERT INTO t6n SELECT * FROM t4n;
+     CREATE TABLE t7(a UNIQUE);
+     CREATE TABLE t8(c);
+     INSERT INTO t7 VALUES('b');
+     INSERT INTO t7 VALUES('c');
+     INSERT INTO t7 VALUES('d');
+     INSERT INTO t8 SELECT * FROM t7;
+     CREATE TABLE t7n(a UNIQUE);
+     CREATE TABLE t8n(c);
+     INSERT INTO t7n SELECT * FROM t7;
+     INSERT INTO t7n VALUES(null);
+     INSERT INTO t8n SELECT * FROM t7n;
+  }
+  execsql {SELECT 1 IN t4}
+} 0
+do_execsql_test tkt-80e031a00f.105 {SELECT 1 NOT IN t4} 1
+do_execsql_test tkt-80e031a00f.106 {SELECT 1 IN t5} 0
+do_execsql_test tkt-80e031a00f.107 {SELECT 1 NOT IN t5} 1
+do_execsql_test tkt-80e031a00f.108 {SELECT 1 IN t6} 0
+do_execsql_test tkt-80e031a00f.109 {SELECT 1 NOT IN t6} 1
+do_execsql_test tkt-80e031a00f.110 {SELECT 'a' IN t7} 0
+do_execsql_test tkt-80e031a00f.111 {SELECT 'a' NOT IN t7} 1
+do_execsql_test tkt-80e031a00f.112 {SELECT 'a' IN t8} 0
+do_execsql_test tkt-80e031a00f.113 {SELECT 'a' NOT IN t8} 1
+#
+# Row 2 is tested by cases 1-32 above.
+# Row 3:
+do_execsql_test tkt-80e031a00f.300 {SELECT 2 IN (2,3,4,null)} 1
+do_execsql_test tkt-80e031a00f.301 {SELECT 3 NOT IN (2,3,4,null)} 0
+do_execsql_test tkt-80e031a00f.302 {SELECT 4 IN (2,3,4)} 1
+do_execsql_test tkt-80e031a00f.303 {SELECT 2 NOT IN (2,3,4)} 0
+do_execsql_test tkt-80e031a00f.304 {SELECT 'b' IN ('b','c','d')} 1
+do_execsql_test tkt-80e031a00f.305 {SELECT 'c' NOT IN ('b','c','d')} 0
+do_execsql_test tkt-80e031a00f.306 {SELECT 'd' IN ('b','c',null,'d')} 1
+do_execsql_test tkt-80e031a00f.307 {SELECT 'b' NOT IN (null,'b','c','d')} 0
+do_execsql_test tkt-80e031a00f.308 {SELECT 2 IN t4} 1
+do_execsql_test tkt-80e031a00f.309 {SELECT 3 NOT IN t4} 0
+do_execsql_test tkt-80e031a00f.310 {SELECT 4 IN t4n} 1
+do_execsql_test tkt-80e031a00f.311 {SELECT 2 NOT IN t4n} 0
+do_execsql_test tkt-80e031a00f.312 {SELECT 2 IN t5} 1
+do_execsql_test tkt-80e031a00f.313 {SELECT 3 NOT IN t5} 0
+do_execsql_test tkt-80e031a00f.314 {SELECT 2 IN t6} 1
+do_execsql_test tkt-80e031a00f.315 {SELECT 3 NOT IN t6} 0
+do_execsql_test tkt-80e031a00f.316 {SELECT 4 IN t6n} 1
+do_execsql_test tkt-80e031a00f.317 {SELECT 2 NOT IN t6n} 0
+do_execsql_test tkt-80e031a00f.318 {SELECT 'b' IN t7} 1
+do_execsql_test tkt-80e031a00f.319 {SELECT 'c' NOT IN t7} 0
+do_execsql_test tkt-80e031a00f.320 {SELECT 'c' IN t7n} 1
+do_execsql_test tkt-80e031a00f.321 {SELECT 'd' NOT IN t7n} 0
+do_execsql_test tkt-80e031a00f.322 {SELECT 'b' IN t8} 1
+do_execsql_test tkt-80e031a00f.323 {SELECT 'c' NOT IN t8} 0
+do_execsql_test tkt-80e031a00f.324 {SELECT 'c' IN t8n} 1
+do_execsql_test tkt-80e031a00f.325 {SELECT 'd' NOT IN t8n} 0
+do_execsql_test tkt-80e031a00f.326 {SELECT 'a' IN (NULL,'a')} 1
+do_execsql_test tkt-80e031a00f.327 {SELECT 'a' IN (NULL,'b')} {{}}
+do_execsql_test tkt-80e031a00f.328 {SELECT 'a' NOT IN (NULL,'a')} 0
+do_execsql_test tkt-80e031a00f.329 {SELECT 'a' NOT IN (NULL,'b')} {{}}
+#
+# Row 4:
+do_execsql_test tkt-80e031a00f.400 {SELECT 1 IN (2,3,4,null)} {{}}
+do_execsql_test tkt-80e031a00f.401 {SELECT 1 NOT IN (2,3,4,null)} {{}}
+do_execsql_test tkt-80e031a00f.402 {SELECT 'a' IN ('b','c',null,'d')} {{}}
+do_execsql_test tkt-80e031a00f.403 {SELECT 'a' NOT IN (null,'b','c','d')} {{}}
+do_execsql_test tkt-80e031a00f.404 {SELECT 1 IN t4n} {{}}
+do_execsql_test tkt-80e031a00f.405 {SELECT 5 NOT IN t4n} {{}}
+do_execsql_test tkt-80e031a00f.406 {SELECT 6 IN t6n} {{}}
+do_execsql_test tkt-80e031a00f.407 {SELECT 7 NOT IN t6n} {{}}
+do_execsql_test tkt-80e031a00f.408 {SELECT 'a' IN t7n} {{}}
+do_execsql_test tkt-80e031a00f.409 {SELECT 'e' NOT IN t7n} {{}}
+do_execsql_test tkt-80e031a00f.410 {SELECT 'f' IN t8n} {{}}
+do_execsql_test tkt-80e031a00f.411 {SELECT 'g' NOT IN t8n} {{}}
+#
+# Row 5:
+do_execsql_test tkt-80e031a00f.500 {SELECT null IN (2,3,4,null)} {{}}
+do_execsql_test tkt-80e031a00f.501 {SELECT null NOT IN (2,3,4,null)} {{}}
+do_execsql_test tkt-80e031a00f.502 {SELECT null IN (2,3,4)} {{}}
+do_execsql_test tkt-80e031a00f.503 {SELECT null NOT IN (2,3,4)} {{}}
+do_execsql_test tkt-80e031a00f.504 {SELECT null IN ('b','c','d')} {{}}
+do_execsql_test tkt-80e031a00f.505 {SELECT null NOT IN ('b','c','d')} {{}}
+do_execsql_test tkt-80e031a00f.506 {SELECT null IN ('b','c',null,'d')} {{}}
+do_execsql_test tkt-80e031a00f.507 {SELECT null NOT IN (null,'b','c','d')} {{}}
+do_execsql_test tkt-80e031a00f.508 {SELECT null IN t4} {{}}
+do_execsql_test tkt-80e031a00f.509 {SELECT null NOT IN t4} {{}}
+do_execsql_test tkt-80e031a00f.510 {SELECT null IN t4n} {{}}
+do_execsql_test tkt-80e031a00f.511 {SELECT null NOT IN t4n} {{}}
+do_execsql_test tkt-80e031a00f.512 {SELECT null IN t5} {{}}
+do_execsql_test tkt-80e031a00f.513 {SELECT null NOT IN t5} {{}}
+do_execsql_test tkt-80e031a00f.514 {SELECT null IN t6} {{}}
+do_execsql_test tkt-80e031a00f.515 {SELECT null NOT IN t6} {{}}
+do_execsql_test tkt-80e031a00f.516 {SELECT null IN t6n} {{}}
+do_execsql_test tkt-80e031a00f.517 {SELECT null NOT IN t6n} {{}}
+do_execsql_test tkt-80e031a00f.518 {SELECT null IN t7} {{}}
+do_execsql_test tkt-80e031a00f.519 {SELECT null NOT IN t7} {{}}
+do_execsql_test tkt-80e031a00f.520 {SELECT null IN t7n} {{}}
+do_execsql_test tkt-80e031a00f.521 {SELECT null NOT IN t7n} {{}}
+do_execsql_test tkt-80e031a00f.522 {SELECT null IN t8} {{}}
+do_execsql_test tkt-80e031a00f.523 {SELECT null NOT IN t8} {{}}
+do_execsql_test tkt-80e031a00f.524 {SELECT null IN t8n} {{}}
+do_execsql_test tkt-80e031a00f.525 {SELECT null NOT IN t8n} {{}}
+
+finish_test
diff --git a/test/tkt-8454a207b9.test b/test/tkt-8454a207b9.test
new file mode 100644
index 0000000000000000000000000000000000000000..42b95c8f53a8b35032e5ff6259ac39018abb5786
--- /dev/null
+++ b/test/tkt-8454a207b9.test
@@ -0,0 +1,73 @@
+# 2010 September 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements regression tests for SQLite library. Specifically,
+# it tests that ticket [8454a207b9fd2243c4c6b7a73f67ea0315717c1a].  Verify
+# that a negative default value on an added text column actually comes
+# out negative.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If SQLITE_OMIT_ALTERTABLE is defined, omit this file.
+ifcapable !altertable {
+  finish_test
+  return
+}
+
+do_test tkt-8454a207b9.1 {
+  db eval {
+    CREATE TABLE t1(a);
+    INSERT INTO t1 VALUES(1);
+    ALTER TABLE t1 ADD COLUMN b TEXT DEFAULT -123.0;
+    SELECT b, typeof(b) FROM t1;
+  }
+} {-123.0 text}
+do_test tkt-8454a207b9.2 {
+  db eval {
+    ALTER TABLE t1 ADD COLUMN c TEXT DEFAULT -123.5;
+    SELECT c, typeof(c) FROM t1;
+  }
+} {-123.5 text}
+do_test tkt-8454a207b9.3 {
+  db eval {
+    ALTER TABLE t1 ADD COLUMN d TEXT DEFAULT -'hello';
+    SELECT d, typeof(d) FROM t1;
+  }
+} {0 text}
+do_test tkt-8454a207b9.4 {
+  db eval {
+    ALTER TABLE t1 ADD COLUMN e DEFAULT -123.0;
+    SELECT e, typeof(e) FROM t1;
+  }
+} {-123.0 real}
+do_test tkt-8454a207b9.5 {
+  db eval {
+    ALTER TABLE t1 ADD COLUMN f DEFAULT -123.5;
+    SELECT f, typeof(f) FROM t1;
+  }
+} {-123.5 real}
+do_test tkt-8454a207b9.6 {
+  db eval {
+    ALTER TABLE t1 ADD COLUMN g DEFAULT -9223372036854775808;
+    SELECT g, typeof(g) FROM t1;
+  }
+} {-9223372036854775808 integer}
+do_test tkt-8454a207b9.7 {
+  db eval {
+    ALTER TABLE t1 ADD COLUMN h DEFAULT 9223372036854775807;
+    SELECT h, typeof(h) FROM t1;
+  }
+} {9223372036854775807 integer}
+
+
+finish_test
diff --git a/test/tkt-868145d012.test b/test/tkt-868145d012.test
new file mode 100644
index 0000000000000000000000000000000000000000..145d159e540d731eae0e3ffff33cc5427553efba
--- /dev/null
+++ b/test/tkt-868145d012.test
@@ -0,0 +1,64 @@
+# 2013 March 05
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. Specifically,
+# it tests that ticket [868145d012a1] is fixed.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_execsql_test tkt-868145d012.100 {
+  CREATE TABLE p (
+    id INTEGER PRIMARY KEY,
+    uid VARCHAR(36),
+    t INTEGER
+  );
+  
+  CREATE TABLE pa (
+    id INTEGER PRIMARY KEY,
+    a_uid VARCHAR(36)
+  );
+  
+  CREATE TABLE a (
+    id INTEGER PRIMARY KEY,
+    uid VARCHAR(36),
+    t INTEGER
+  );
+  
+  INSERT INTO pa VALUES(1,'1234');
+  INSERT INTO pa VALUES(2,'2345');
+  INSERT INTO p VALUES(3,'1234',97);
+  INSERT INTO p VALUES(4,'1234',98);
+  INSERT INTO a VALUES(5,'1234',98);
+  INSERT INTO a VALUES(6,'1234',99);
+} {}
+do_execsql_test tkt-868145d012.110 {
+  SELECT DISTINCT pa.id, p.id, a.id
+  FROM
+    pa
+    LEFT JOIN p ON p.uid='1234'
+    LEFT JOIN a ON a.uid=pa.a_uid
+  WHERE
+    a.t=p.t
+  ;
+} {1 4 5}
+do_execsql_test tkt-868145d012.120 {
+  SELECT DISTINCT pa.id, p.id, a.id
+  FROM
+    pa
+    LEFT JOIN p ON p.uid='1234'
+    LEFT JOIN a ON a.uid=pa.a_uid AND a.t=p.t
+  ORDER BY 1, 2, 3
+  ;
+} {1 3 {} 1 4 5 2 3 {} 2 4 {}}
+
+    
+finish_test
diff --git a/test/tkt-8c63ff0ec.test b/test/tkt-8c63ff0ec.test
new file mode 100644
index 0000000000000000000000000000000000000000..d4aaefd74ad45b3569ab5207160bce1095ebac93
--- /dev/null
+++ b/test/tkt-8c63ff0ec.test
@@ -0,0 +1,48 @@
+# 2014-02-25
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+# Test cases to show that ticket [8c63ff0eca81a9132d8d67b31cd6ae9712a2cc6f]
+# "Incorrect query result on a UNION ALL" which was caused by using the same
+# temporary register in concurrent co-routines, as been fixed.
+# 
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix tkt-8c63ff0ec
+
+do_execsql_test 1.1 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c, d, e);
+  INSERT INTO t1 VALUES(1,20,30,40,50),(3,60,70,80,90);
+  CREATE TABLE t2(x INTEGER PRIMARY KEY);
+  INSERT INTO t2 VALUES(2);
+  CREATE TABLE t3(z);
+  INSERT INTO t3 VALUES(2),(2),(2),(2);
+  
+  SELECT a, b+c FROM t1
+  UNION ALL
+  SELECT x, 5 FROM t2 JOIN t3 ON z=x WHERE x=2
+  ORDER BY a;
+} {1 50 2 5 2 5 2 5 2 5 3 130}
+do_execsql_test 1.2 {
+  SELECT a, b+c+d FROM t1
+  UNION ALL
+  SELECT x, 5 FROM t2 JOIN t3 ON z=x WHERE x=2
+  ORDER BY a;
+} {1 90 2 5 2 5 2 5 2 5 3 210}
+do_execsql_test 1.3 {
+  SELECT a, b+c+d+e FROM t1
+  UNION ALL
+  SELECT x, 5 FROM t2 JOIN t3 ON z=x WHERE x=2
+  ORDER BY a;
+} {1 140 2 5 2 5 2 5 2 5 3 300}
+
+finish_test
diff --git a/test/tkt-91e2e8ba6f.test b/test/tkt-91e2e8ba6f.test
new file mode 100644
index 0000000000000000000000000000000000000000..57f13740a256d27c41adedf821164e8ebf24f889
--- /dev/null
+++ b/test/tkt-91e2e8ba6f.test
@@ -0,0 +1,52 @@
+# 2011 June 23
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains tests for SQLite. Specifically, it tests that SQLite
+# does not crash and an error is returned if localhost() fails. This 
+# is the problem reported by ticket 91e2e8ba6f.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+set testprefix tkt-91e2e8ba6f
+
+
+do_execsql_test 1.1 {
+  CREATE TABLE t1(x INTEGER, y REAL);
+  INSERT INTO t1 VALUES(11, 11);
+} {}
+
+do_execsql_test 1.2 {
+  SELECT x/10, y/10 FROM t1;
+} {1 1.1}
+
+do_execsql_test 1.3 {
+  SELECT x/10, y/10 FROM (SELECT * FROM t1);
+} {1 1.1}
+
+do_execsql_test 1.4 {
+  SELECT x/10, y/10 FROM (SELECT * FROM t1 LIMIT 5 OFFSET 0);
+} {1 1.1}
+
+do_execsql_test 1.5 {
+  SELECT x/10, y/10 FROM (SELECT * FROM t1 LIMIT 5 OFFSET 0) LIMIT 5 OFFSET 0;
+} {1 1.1}
+
+do_execsql_test 1.6 {
+  SELECT a.x/10, a.y/10 FROM 
+    (SELECT * FROM t1 LIMIT 5 OFFSET 0) AS a, t1 AS b WHERE a.x = b.x
+  LIMIT 5 OFFSET 0;
+} {1 1.1}
+
+do_execsql_test 1.7 {
+  CREATE VIEW v1 AS SELECT * FROM t1 LIMIT 5;
+  SELECT a.x/10, a.y/10 FROM v1 AS a, t1 AS b WHERE a.x = b.x LIMIT 5 OFFSET 0;
+} {1 1.1}
+
+finish_test
diff --git a/test/tkt-99378177930f87bd.test b/test/tkt-99378177930f87bd.test
new file mode 100644
index 0000000000000000000000000000000000000000..ba9fdc70271e259d073651094119e8b3922bbc9f
--- /dev/null
+++ b/test/tkt-99378177930f87bd.test
@@ -0,0 +1,196 @@
+# 2022-11-23
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that the enhancement
+# request documented by ticket 99378177930f87bd is working.
+#
+# The enhancement is that if an aggregate query with a GROUP BY clause
+# uses subexpressions in the arguments to aggregate functions that are
+# also columns of an index, then the values are pulled from the index
+# rather than being recomputed.  This has the potential to make some
+# indexed queries works as if the index were covering.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_execsql_test tkt-99378-100 {
+  CREATE TABLE t1(a INT, b TEXT, c INT, d INT);
+  INSERT INTO t1(a,b,c,d) VALUES
+    (1, '{"x":1}', 12,  3),
+    (1, '{"x":2}',  4,  5),
+    (1, '{"x":1}',  6, 11),
+    (2, '{"x":1}', 22,  3),
+    (2, '{"x":2}',  4,  5),
+    (3, '{"x":1}',  6,  7);
+  CREATE INDEX t1x ON t1(d, a, b->>'x', c);
+} {}
+do_execsql_test tkt-99378-110 {
+  SELECT a,
+         SUM(1)                              AS t1,
+         SUM(CASE WHEN b->>'x'=1 THEN 1 END) AS t2,
+         SUM(c)                              AS t3,
+         SUM(CASE WHEN b->>'x'=1 THEN c END) AS t4
+    FROM t1
+   WHERE d BETWEEN 0 and 10
+   GROUP BY a;
+} {
+  1  2  1 16 12
+  2  2  1 26 22
+  3  1  1  6  6
+}
+
+# The proof that the index on the expression is being used is in the
+# fact that the byte code contains no "Function" opcodes.  In other words,
+# the ->> operator (which is implemented by a function) is never invoked.
+# Instead, the b->>'x' value is pulled out of the index.
+#
+do_execsql_test tkt-99378-120 {
+  EXPLAIN
+  SELECT a,
+         SUM(1)                              AS t1,
+         SUM(CASE WHEN b->>'x'=1 THEN 1 END) AS t2,
+         SUM(c)                              AS t3,
+         SUM(CASE WHEN b->>'x'=1 THEN c END) AS t4
+    FROM t1
+   WHERE d BETWEEN 0 and 10
+   GROUP BY a;
+} {~/Function/}
+
+
+do_execsql_test tkt-99378-130 {
+  SELECT a,
+         SUM(1)                              AS t1,
+         SUM(CASE WHEN b->>'x'=1 THEN 1 END) AS t2,
+         SUM(c)                              AS t3,
+         SUM(CASE WHEN b->>'x'=1 THEN c END) AS t4
+    FROM t1
+   WHERE d BETWEEN 0 and 10
+   GROUP BY +a;
+} {
+  1  2  1 16 12
+  2  2  1 26 22
+  3  1  1  6  6
+}
+do_execsql_test tkt-99378-140 {
+  EXPLAIN
+  SELECT a,
+         SUM(1)                              AS t1,
+         SUM(CASE WHEN b->>'x'=1 THEN 1 END) AS t2,
+         SUM(c)                              AS t3,
+         SUM(CASE WHEN b->>'x'=1 THEN c END) AS t4
+    FROM t1
+   WHERE d BETWEEN 0 and 10
+   GROUP BY +a;
+} {~/Function/}
+
+do_execsql_test tkt-99378-200 {
+  DROP INDEX t1x;
+  CREATE INDEX t1x ON t1(a, d, b->>'x', c);
+}
+do_execsql_test tkt-99378-210 {
+  SELECT a,
+         SUM(1)                              AS t1,
+         SUM(CASE WHEN b->>'x'=1 THEN 1 END) AS t2,
+         SUM(c)                              AS t3,
+         SUM(CASE WHEN b->>'x'=1 THEN c END) AS t4
+    FROM t1
+   WHERE d BETWEEN 0 and 10
+   GROUP BY a;
+} {
+  1  2  1 16 12
+  2  2  1 26 22
+  3  1  1  6  6
+}
+do_execsql_test tkt-99378-220 {
+  EXPLAIN
+  SELECT a,
+         SUM(1)                              AS t1,
+         SUM(CASE WHEN b->>'x'=1 THEN 1 END) AS t2,
+         SUM(c)                              AS t3,
+         SUM(CASE WHEN b->>'x'=1 THEN c END) AS t4
+    FROM t1
+   WHERE d BETWEEN 0 and 10
+   GROUP BY a;
+} {~/Function/}
+do_execsql_test tkt-99378-230 {
+  SELECT a,
+         SUM(1)                              AS t1,
+         SUM(CASE WHEN b->>'x'=1 THEN 1 END) AS t2,
+         SUM(c)                              AS t3,
+         SUM(CASE WHEN b->>'x'=1 THEN c END) AS t4
+    FROM t1
+   WHERE d BETWEEN 0 and 10
+   GROUP BY a;
+} {
+  1  2  1 16 12
+  2  2  1 26 22
+  3  1  1  6  6
+}
+do_execsql_test tkt-99378-240 {
+  EXPLAIN
+  SELECT a,
+         SUM(1)                              AS t1,
+         SUM(CASE WHEN b->>'x'=1 THEN 1 END) AS t2,
+         SUM(c)                              AS t3,
+         SUM(CASE WHEN b->>'x'=1 THEN c END) AS t4
+    FROM t1
+   WHERE d BETWEEN 0 and 10
+   GROUP BY a;
+} {~/Function/}
+
+# 2022-12-20 dbsqlfuzz a644e70d7683a7ca59c71861a153c1dccf8850b9
+#
+do_execsql_test tkt-99378-300 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a INT);
+  CREATE INDEX i1 ON t1(a,a=a);
+  INSERT INTO t1 VALUES(1),(2),(3),(4);
+  SELECT * FROM t1 NATURAL JOIN t1 
+   WHERE a==1
+      OR (
+           (SELECT avg(
+                (SELECT sum((SELECT 1 FROM t1 NATURAL RIGHT JOIN t1 WHERE a=a)))) AS xyz
+           )
+           AND a==2
+         );
+} {1 2}
+do_execsql_test tkt-99378-310 {
+  DROP INDEX i1;
+  SELECT * FROM t1 NATURAL JOIN t1 
+   WHERE a==1
+      OR (
+           (SELECT avg(
+                (SELECT sum((SELECT 1 FROM t1 NATURAL RIGHT JOIN t1 WHERE a=a)))) AS xyz
+           )
+           AND a==2
+         );
+} {1 2}
+
+# 2023-03-04 https://sqlite.org/forum/forumpost/a68313d054
+#
+# See also indexexpr1-2200 added on 2023-03-18.
+#
+do_execsql_test tkt-99378-400 {
+  DROP TABLE t1;
+  CREATE TABLE t0(w);
+  INSERT INTO t0(w) VALUES(1);
+  CREATE TABLE t1(x);
+  INSERT INTO t1(x) VALUES(1);
+  CREATE INDEX t1x ON t1(x > 0);
+  CREATE VIEW t2(y) AS SELECT avg(w) FROM t0 GROUP BY w>1;
+  CREATE VIEW t3(z) AS SELECT count(*) FROM t2 WHERE y BETWEEN 0 and 0;
+  SELECT count(*) FROM t1 NOT INDEXED WHERE (SELECT z FROM t3);
+  SELECT count(*) FROM t1 INDEXED BY t1x WHERE (SELECT z FROM t3);
+} {0 0}
+
+finish_test
diff --git a/test/tkt-9a8b09f8e6.test b/test/tkt-9a8b09f8e6.test
new file mode 100644
index 0000000000000000000000000000000000000000..d6b22efb21ac16d38fcd291856db11ab13e2de20
--- /dev/null
+++ b/test/tkt-9a8b09f8e6.test
@@ -0,0 +1,323 @@
+# 2014 June 26
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that ticket [9a8b09f8e6] has been
+# fixed.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix tkt-9a8b09f8e6
+
+do_test 1.1 {
+  execsql {
+    CREATE TABLE t1(x TEXT);
+    INSERT INTO t1 VALUES('1');
+  }
+} {}
+
+do_test 1.2 {
+  execsql {
+    CREATE TABLE t2(x INTEGER);
+    INSERT INTO t2 VALUES(1);
+  }
+} {}
+
+do_test 1.3 {
+  execsql {
+    CREATE TABLE t3(x REAL);
+    INSERT INTO t3 VALUES(1.0);
+  }
+} {}
+
+do_test 1.4 {
+  execsql {
+    CREATE TABLE t4(x REAL);
+    INSERT INTO t4 VALUES(1.11);
+  }
+} {}
+
+do_test 1.5 {
+  execsql {
+    CREATE TABLE t5(x, y);
+    INSERT INTO t5 VALUES('1', 'one');
+    INSERT INTO t5 VALUES(1, 'two');
+    INSERT INTO t5 VALUES('1.0', 'three');
+    INSERT INTO t5 VALUES(1.0, 'four');
+  }
+} {}
+
+do_test 2.1 {
+  execsql {
+    SELECT x FROM t1 WHERE x IN (1);
+  }
+} {1}
+
+do_test 2.2 {
+  execsql {
+    SELECT x FROM t1 WHERE x IN (1.0);
+  }
+} {}
+
+do_test 2.3 {
+  execsql {
+    SELECT x FROM t1 WHERE x IN ('1');
+  }
+} {1}
+
+do_test 2.4 {
+  execsql {
+    SELECT x FROM t1 WHERE x IN ('1.0');
+  }
+} {}
+
+do_test 2.5 {
+  execsql {
+    SELECT x FROM t1 WHERE 1 IN (x);
+  }
+} {}
+
+do_test 2.6 {
+  execsql {
+    SELECT x FROM t1 WHERE 1.0 IN (x);
+  }
+} {}
+
+do_test 2.7 {
+  execsql {
+    SELECT x FROM t1 WHERE '1' IN (x);
+  }
+} {1}
+
+do_test 2.8 {
+  execsql {
+    SELECT x FROM t1 WHERE '1.0' IN (x);
+  }
+} {}
+
+do_test 3.1 {
+  execsql {
+    SELECT x FROM t2 WHERE x IN (1);
+  }
+} {1}
+
+do_test 3.2 {
+  execsql {
+    SELECT x FROM t2 WHERE x IN (1.0);
+  }
+} {1}
+
+do_test 3.3 {
+  execsql {
+    SELECT x FROM t2 WHERE x IN ('1');
+  }
+} {1}
+
+do_test 3.4 {
+  execsql {
+    SELECT x FROM t2 WHERE x IN ('1.0');
+  }
+} {1}
+
+do_test 3.5 {
+  execsql {
+    SELECT x FROM t2 WHERE 1 IN (x);
+  }
+} {1}
+
+do_test 3.6 {
+  execsql {
+    SELECT x FROM t2 WHERE 1.0 IN (x);
+  }
+} {1}
+
+do_test 3.7 {
+  execsql {
+    SELECT x FROM t2 WHERE '1' IN (x);
+  }
+} {}
+
+do_test 3.8 {
+  execsql {
+    SELECT x FROM t2 WHERE '1.0' IN (x);
+  }
+} {}
+
+do_test 4.1 {
+  execsql {
+    SELECT x FROM t3 WHERE x IN (1);
+  }
+} {1.0}
+
+do_test 4.2 {
+  execsql {
+    SELECT x FROM t3 WHERE x IN (1.0);
+  }
+} {1.0}
+
+do_test 4.3 {
+  execsql {
+    SELECT x FROM t3 WHERE x IN ('1');
+  }
+} {1.0}
+
+do_test 4.4 {
+  execsql {
+    SELECT x FROM t3 WHERE x IN ('1.0');
+  }
+} {1.0}
+
+do_test 4.5 {
+  execsql {
+    SELECT x FROM t3 WHERE 1 IN (x);
+  }
+} {1.0}
+
+do_test 4.6 {
+  execsql {
+    SELECT x FROM t3 WHERE 1.0 IN (x);
+  }
+} {1.0}
+
+do_test 4.7 {
+  execsql {
+    SELECT x FROM t3 WHERE '1' IN (x);
+  }
+} {}
+
+do_test 4.8 {
+  execsql {
+    SELECT x FROM t3 WHERE '1.0' IN (x);
+  }
+} {}
+
+do_test 5.1 {
+  execsql {
+    SELECT x FROM t4 WHERE x IN (1);
+  }
+} {}
+
+do_test 5.2 {
+  execsql {
+    SELECT x FROM t4 WHERE x IN (1.0);
+  }
+} {}
+
+do_test 5.3 {
+  execsql {
+    SELECT x FROM t4 WHERE x IN ('1');
+  }
+} {}
+
+do_test 5.4 {
+  execsql {
+    SELECT x FROM t4 WHERE x IN ('1.0');
+  }
+} {}
+
+do_test 5.5 {
+  execsql {
+    SELECT x FROM t4 WHERE x IN (1.11);
+  }
+} {1.11}
+
+do_test 5.6 {
+  execsql {
+    SELECT x FROM t4 WHERE x IN ('1.11');
+  }
+} {1.11}
+
+do_test 5.7 {
+  execsql {
+    SELECT x FROM t4 WHERE 1 IN (x);
+  }
+} {}
+
+do_test 5.8 {
+  execsql {
+    SELECT x FROM t4 WHERE 1.0 IN (x);
+  }
+} {}
+
+do_test 5.9 {
+  execsql {
+    SELECT x FROM t4 WHERE '1' IN (x);
+  }
+} {}
+
+do_test 5.10 {
+  execsql {
+    SELECT x FROM t4 WHERE '1.0' IN (x);
+  }
+} {}
+
+do_test 5.11 {
+  execsql {
+    SELECT x FROM t4 WHERE 1.11 IN (x);
+  }
+} {1.11}
+
+do_test 5.12 {
+  execsql {
+    SELECT x FROM t4 WHERE '1.11' IN (x);
+  }
+} {}
+
+do_test 6.1 {
+  execsql {
+    SELECT x, y FROM t5 WHERE x IN (1);
+  }
+} {1 two 1.0 four}
+
+do_test 6.2 {
+  execsql {
+    SELECT x, y FROM t5 WHERE x IN (1.0);
+  }
+} {1 two 1.0 four}
+
+do_test 6.3 {
+  execsql {
+    SELECT x, y FROM t5 WHERE x IN ('1');
+  }
+} {1 one}
+
+do_test 6.4 {
+  execsql {
+    SELECT x, y FROM t5 WHERE x IN ('1.0');
+  }
+} {1.0 three}
+
+do_test 6.5 {
+  execsql {
+    SELECT x, y FROM t5 WHERE 1 IN (x);
+  }
+} {1 two 1.0 four}
+
+do_test 6.6 {
+  execsql {
+    SELECT x, y FROM t5 WHERE 1.0 IN (x);
+  }
+} {1 two 1.0 four}
+
+do_test 6.7 {
+  execsql {
+    SELECT x, y FROM t5 WHERE '1' IN (x);
+  }
+} {1 one}
+
+do_test 6.8 {
+  execsql {
+    SELECT x, y FROM t5 WHERE '1.0' IN (x);
+  }
+} {1.0 three}
+
+finish_test
diff --git a/test/tkt-9d68c883.test b/test/tkt-9d68c883.test
new file mode 100644
index 0000000000000000000000000000000000000000..ba91b39e396dd855a35c78e4bc944a7843c9c668
--- /dev/null
+++ b/test/tkt-9d68c883.test
@@ -0,0 +1,55 @@
+# 2010 April 10
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file tests that bug  9d68c883132c8e9ffcd5b0c148c990807b5df1b7
+# is fixed.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt-9d68c88-1.1 {
+  execsql {
+    PRAGMA page_size = 1024;
+    PRAGMA auto_vacuum = 2;
+    CREATE TABLE t3(x);
+    CREATE TABLE t4(x);
+    CREATE TABLE t5(x);
+    INSERT INTO t5 VALUES(randomblob(1500));
+    CREATE TABLE t7(x);
+    CREATE TABLE t8(x);
+  }
+} {}
+
+
+for {set i 0} {$i < 100} {incr i} {
+  db close
+  sqlite3_simulate_device -sectorsize 8192
+  sqlite3 db test.db -vfs devsym
+
+  do_test tkt-9d68c88-2.$i {
+    execsql {
+      BEGIN;
+        DELETE FROM t5;
+        INSERT INTO t8 VALUES('hello world');
+    }
+  
+    sqlite3_memdebug_fail $i -repeat 0
+    catchsql { DROP TABLE t7; }
+    sqlite3_memdebug_fail -1
+
+    catchsql { ROLLBACK }
+    execsql { PRAGMA integrity_check }
+  } {ok}
+}
+
+catch { db close } 
+unregister_devsim
+finish_test
diff --git a/test/tkt-9f2eb3abac.test b/test/tkt-9f2eb3abac.test
new file mode 100644
index 0000000000000000000000000000000000000000..8411654cdde56384913fc7c7ebbdd113c4894b9f
--- /dev/null
+++ b/test/tkt-9f2eb3abac.test
@@ -0,0 +1,78 @@
+
+# 2013 August 29
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+set ::testprefix tkt-9f2eb3abac
+
+do_execsql_test 1.1 {
+  CREATE TABLE t1(a,b,c,d,e, PRIMARY KEY(a,b,c,d,e));
+  SELECT * FROM t1 WHERE a=? AND b=? AND c=? AND d=? AND e=?;
+} {}
+
+do_execsql_test 1.2 {
+  CREATE TABLE "a" (
+      "b" integer NOT NULL,
+      "c" integer NOT NULL,
+      PRIMARY KEY ("b", "c")
+      );
+
+  CREATE TABLE "d" (
+      "e" integer NOT NULL,
+      "g" integer NOT NULL,
+      "f" integer NOT NULL,
+      "h" integer NOT NULL,
+      "i" character(10) NOT NULL,
+      "j" int,
+      PRIMARY KEY ("e", "g", "f", "h")
+      );
+
+  CREATE TABLE "d_to_a" (
+      "f_e" integer NOT NULL,
+      "f_g" integer NOT NULL,
+      "f_f" integer NOT NULL,
+      "f_h" integer NOT NULL,
+      "t_b" integer NOT NULL,
+      "t_c" integer NOT NULL,
+      "r" character NOT NULL,
+      "s" integer,
+      PRIMARY KEY ("f_e", "f_g", "f_f", "f_h", "t_b", "t_c")
+      );
+
+  INSERT INTO d (g, e, h, f, j, i) VALUES ( 1, 1, 1, 1, 1, 1 );
+  INSERT INTO a (b, c) VALUES ( 1, 1 );
+  INSERT INTO d_to_a VALUES (1, 1, 1, 1, 1, 1, 1, 1);
+
+  DELETE FROM d_to_a 
+  WHERE f_g = 1 AND f_e = 1 AND f_h = 1 AND f_f = 1 AND t_b = 1 AND t_c = 1;
+
+  SELECT * FROM d_to_a;
+} {}
+
+faultsim_delete_and_reopen
+do_execsql_test 2.0 { CREATE TABLE t1(a,b,c,d,e, PRIMARY KEY(a,b,c,d,e)) }
+do_execsql_test 2.1 { CREATE TABLE t2(x) }
+faultsim_save_and_close
+
+do_faultsim_test 3 -faults oom* -prep {
+  faultsim_restore_and_reopen
+  execsql { SELECT 1 FROM sqlite_master }
+} -body {
+  execsql { SELECT * FROM t1,t2 WHERE a=? AND b=? AND c=? AND d=? AND e=? }
+} -test {
+  faultsim_test_result {0 {}} 
+}
+
+finish_test
diff --git a/test/tkt-a7b7803e.test b/test/tkt-a7b7803e.test
new file mode 100644
index 0000000000000000000000000000000000000000..b617cf6df2381e7af7bebbfb07650ca114b14714
--- /dev/null
+++ b/test/tkt-a7b7803e.test
@@ -0,0 +1,84 @@
+# 2012 December 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. Specifically,
+# it tests that ticket [a7b7803e8d1e8699cd8a460a38133b98892d2e17] has
+# been fixed.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+source $testdir/malloc_common.tcl
+
+do_test tkt-a7b7803e.1 {
+  db eval {
+    CREATE TABLE t1(a,b);
+    INSERT INTO t1 VALUES(0,'first'),(99,'fuzzy');
+    SELECT (t1.a==0) AS x, b
+      FROM t1
+     WHERE a=0 OR x;
+  }
+} {1 first}
+do_test tkt-a7b7803e.2 {
+  db eval {
+    SELECT a, (t1.b='fuzzy') AS x
+      FROM t1
+     WHERE x
+  }
+} {99 1}
+do_test tkt-a7b7803e.3 {
+  db eval {
+    SELECT (a=99) AS x, (t1.b='fuzzy') AS y, *
+      FROM t1
+     WHERE x AND y
+  }
+} {1 1 99 fuzzy}
+do_test tkt-a7b7803e.4 {
+  db eval {
+    SELECT (a=99) AS x, (t1.b='first') AS y, *
+      FROM t1
+     WHERE x OR y
+     ORDER BY a
+  }
+} {0 1 0 first 1 0 99 fuzzy}
+do_test tkt-a7b7803e.5 {
+  db eval {
+    SELECT (M.a=99) AS x, M.b, (N.b='first') AS y, N.b
+      FROM t1 M, t1 N
+     WHERE x OR y
+     ORDER BY M.a, N.a
+  }
+} {0 first 1 first 1 fuzzy 1 first 1 fuzzy 0 fuzzy}
+do_test tkt-a7b7803e.6 {
+  db eval {
+    SELECT (M.a=99) AS x, M.b, (N.b='first') AS y, N.b
+      FROM t1 M, t1 N
+     WHERE x AND y
+     ORDER BY M.a, N.a
+  }
+} {1 fuzzy 1 first}
+do_test tkt-a7b7803e.7 {
+  db eval {
+    SELECT (M.a=99) AS x, M.b, (N.b='first') AS y, N.b
+      FROM t1 M JOIN t1 N ON x AND y
+     ORDER BY M.a, N.a
+  }
+} {1 fuzzy 1 first}
+do_test tkt-a7b7803e.8 {
+  db eval {
+    SELECT (M.a=99) AS x, M.b, (N.b='first') AS y, N.b
+      FROM t1 M JOIN t1 N ON x
+     ORDER BY M.a, N.a
+  }
+} {1 fuzzy 1 first 1 fuzzy 0 fuzzy}
+
+
+finish_test
diff --git a/test/tkt-a7debbe0.test b/test/tkt-a7debbe0.test
new file mode 100644
index 0000000000000000000000000000000000000000..cc72eb7b5ed4219240a52bc3db11e2296c6b07a5
--- /dev/null
+++ b/test/tkt-a7debbe0.test
@@ -0,0 +1,102 @@
+# 2019 September 10
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. In particular,
+# that problems related to ticket a7debbe0ad1 have been fixed.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix tkt-a7debbe0
+
+foreach tn {1 2} {
+  reset_db
+  if {$tn==1} {
+    # Disable the flattener
+    optimization_control db query-flattener 0
+  } else {
+    # Enable the flattener
+    optimization_control db query-flattener 1
+  }
+
+  do_execsql_test $tn.1.0 {
+    CREATE TABLE t0(xyz INTEGER);
+    INSERT INTO t0(xyz) VALUES(456);
+    CREATE VIEW v2(a, B) AS 
+        SELECT 'a', 'B' COLLATE NOCASE FROM t0;
+    CREATE TABLE t2(a, B COLLATE NOCASE);
+    INSERT INTO t2 VALUES('a', 'B');
+    CREATE VIEW v3(a, B) AS
+        SELECT 'a' COLLATE BINARY, 'B' COLLATE NOCASE FROM t0;
+
+    CREATE VIEW v4(a, B) AS
+        SELECT 'a', +CAST('B' COLLATE NOCASE AS TEXT) FROM t0;
+
+    CREATE VIEW v5(a, B) AS
+        SELECT 'a', ('B' COLLATE NOCASE) || '' FROM t0;
+  }
+
+  # Table t2 and views v2 through v5 should all be equivalent.
+  do_execsql_test $tn.1.1.1 { SELECT a   >= B FROM t2;         } 1
+  do_execsql_test $tn.1.1.2 { SELECT 'a' >= 'B' COLLATE NOCASE } 0
+  do_execsql_test $tn.1.1.3 { SELECT a   >= B FROM v2          } 1
+  do_execsql_test $tn.1.1.4 { SELECT a   >= B FROM v3          } 1
+  do_execsql_test $tn.1.1.5 { SELECT a   >= B FROM v4          } 1
+  do_execsql_test $tn.1.1.6 { SELECT a   >= B FROM v5          } 1
+
+  do_execsql_test $tn.1.2.1 { SELECT B   < a FROM t2           } 0
+  do_execsql_test $tn.1.2.2 { SELECT 'B' COLLATE NOCASE < 'a'  } 0
+  do_execsql_test $tn.1.2.3 { SELECT B   < a FROM v2           } 0
+  do_execsql_test $tn.1.2.4 { SELECT B   < a FROM v3           } 0
+  do_execsql_test $tn.1.2.5 { SELECT a  < B FROM v4           } 0
+  do_execsql_test $tn.1.2.6 { SELECT a  < B FROM v5           } 0
+
+  #-------------------------------------------------------------------------
+  do_execsql_test $tn.2.0 {
+    CREATE TABLE t5(a, b COLLATE NOCASE);
+    INSERT INTO t5 VALUES(1, 'XYZ');
+  }
+
+  # Result should be 0, as column "xyz" from the sub-query has implicit
+  # collation sequence BINARY.
+  do_execsql_test $tn.2.1 {
+    SELECT xyz==b FROM ( SELECT a, 'xyz' AS xyz FROM t5 ), t5;
+  } {0}
+
+  # Result should be 1, as literal 'xyz' has no collation sequence, so
+  # the comparison uses the implicit collation sequence of the RHS - NOCASE.
+  do_execsql_test $tn.2.2 {
+    SELECT 'xyz'==b FROM ( SELECT a, 'xyz' AS xyz FROM t5 ), t5;
+  } {1}
+
+  #-----------------------------------------------------------------------
+  # The test case submitted with the ticket.
+  #
+  do_execsql_test $tn.3.0 {
+    DROP TABLE t0;
+    DROP VIEW v2;
+
+    CREATE TABLE t0(c0);
+    INSERT INTO t0(c0) VALUES('');
+    CREATE VIEW v2(c0, c1) AS 
+        SELECT 'B' COLLATE NOCASE, 'a' FROM t0 ORDER BY t0.c0;
+    SELECT SUM(count) FROM (
+      SELECT v2.c1 BETWEEN v2.c0 AND v2.c1 as count FROM v2
+    );
+  } 1
+
+  # The result is 1, as the collation used is the implicit collation sequence
+  # of v2.c1 - BINARY.
+  do_execsql_test $tn.3.1 {
+    SELECT v2.c1 BETWEEN v2.c0 AND v2.c1 as count FROM v2;
+  } 1
+}
+
+finish_test
diff --git a/test/tkt-a8a0d2996a.test b/test/tkt-a8a0d2996a.test
new file mode 100644
index 0000000000000000000000000000000000000000..26449370293f872e09f45fb7d897159696a7fe5a
--- /dev/null
+++ b/test/tkt-a8a0d2996a.test
@@ -0,0 +1,95 @@
+# 2014-03-24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+# Tests to verify that arithmetic operators do not change the type of
+# input operands.  Ticket [a8a0d2996a]
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix tkt-a8a0d2996a
+
+do_execsql_test 1.0 {
+  CREATE TABLE t(x,y);
+  INSERT INTO t VALUES('1','1');
+  SELECT typeof(x), typeof(y) FROM t WHERE 1=x+0 AND y=='1';
+} {text text}
+do_execsql_test 1.1 {
+  SELECT typeof(x), typeof(y) FROM t WHERE 1=x-0 AND y=='1';
+} {text text}
+do_execsql_test 1.2 {
+  SELECT typeof(x), typeof(y) FROM t WHERE 1=x*1 AND y=='1';
+} {text text}
+do_execsql_test 1.3 {
+  SELECT typeof(x), typeof(y) FROM t WHERE 1=x/1 AND y=='1';
+} {text text}
+do_execsql_test 1.4 {
+  SELECT typeof(x), typeof(y) FROM t WHERE 1=x%4 AND y=='1';
+} {text text}
+
+do_execsql_test 2.0 {
+  UPDATE t SET x='1xyzzy';
+  SELECT typeof(x), typeof(y) FROM t WHERE 1=x+0 AND y=='1';
+} {text text}
+do_execsql_test 2.1 {
+  SELECT typeof(x), typeof(y) FROM t WHERE 1=x-0 AND y=='1';
+} {text text}
+do_execsql_test 2.2 {
+  SELECT typeof(x), typeof(y) FROM t WHERE 1=x*1 AND y=='1';
+} {text text}
+do_execsql_test 2.3 {
+  SELECT typeof(x), typeof(y) FROM t WHERE 1=x/1 AND y=='1';
+} {text text}
+do_execsql_test 2.4 {
+  SELECT typeof(x), typeof(y) FROM t WHERE 1=x%4 AND y=='1';
+} {text text}
+
+
+do_execsql_test 3.0 {
+  UPDATE t SET x='1.0';
+  SELECT typeof(x), typeof(y) FROM t WHERE 1=x+0 AND y=='1';
+} {text text}
+do_execsql_test 3.1 {
+  SELECT typeof(x), typeof(y) FROM t WHERE 1=x-0 AND y=='1';
+} {text text}
+do_execsql_test 3.2 {
+  SELECT typeof(x), typeof(y) FROM t WHERE 1=x*1 AND y=='1';
+} {text text}
+do_execsql_test 3.3 {
+  SELECT typeof(x), typeof(y) FROM t WHERE 1=x/1 AND y=='1';
+} {text text}
+do_execsql_test 3.4 {
+  SELECT typeof(x), typeof(y) FROM t WHERE 1=x%4 AND y=='1';
+} {text text}
+
+do_execsql_test 4.0 {
+  SELECT 1+1.;
+} {2.0}
+do_execsql_test 4.1 {
+  SELECT '1.23e64'/'1.0000e+62';
+} {123.0}
+do_execsql_test 4.2 {
+  SELECT '100x'+'-2y';
+} {98}
+do_execsql_test 4.3 {
+  SELECT '100x'+'4.5y';
+} {104.5}
+do_execsql_test 4.4 {
+  SELECT '-9223372036854775807x'-'1x';
+} {-9223372036854775808}
+do_execsql_test 4.5 {
+  SELECT '9223372036854775806x'+'1x';
+} {9223372036854775807}
+do_execsql_test 4.6 {
+  SELECT '1234x'/'10y', '1234x'/'10.y', '1234x'/'1e1y';
+} {123 123.4 123.4}
+
+finish_test
diff --git a/test/tkt-b1d3a2e531.test b/test/tkt-b1d3a2e531.test
new file mode 100644
index 0000000000000000000000000000000000000000..745bbe86647b1107fefd34857b4cedba0a285dda
--- /dev/null
+++ b/test/tkt-b1d3a2e531.test
@@ -0,0 +1,109 @@
+# 2011 August 22
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests for foreign keys. Specifically, it tests
+# that ticket b1d3a2e531 has been fixed.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable {!foreignkey||!trigger} {
+  finish_test
+  return
+}
+set testprefix tkt-b1d3a2e531
+
+do_execsql_test 1.0 { PRAGMA foreign_keys = ON }
+
+do_execsql_test 1.1 {
+  CREATE TABLE pp(x PRIMARY KEY);
+  CREATE TABLE cc(y REFERENCES pp DEFERRABLE INITIALLY DEFERRED);
+  INSERT INTO pp VALUES('abc');
+  INSERT INTO cc VALUES('abc');
+}
+do_execsql_test 1.2 {
+  BEGIN;
+    DROP TABLE pp;
+    DROP TABLE cc;
+  COMMIT;
+}
+do_execsql_test 1.3 {
+  CREATE TABLE pp(x PRIMARY KEY);
+  CREATE TABLE cc(y REFERENCES pp DEFERRABLE INITIALLY DEFERRED);
+  INSERT INTO pp VALUES('abc');
+  INSERT INTO cc VALUES('abc');
+}
+do_execsql_test 1.4 {
+  BEGIN;
+    DROP TABLE cc;
+    DROP TABLE pp;
+  COMMIT;
+}
+
+do_execsql_test 2.1 {
+  CREATE TABLE pp(x PRIMARY KEY);
+  CREATE TABLE cc(
+    y INTEGER PRIMARY KEY REFERENCES pp DEFERRABLE INITIALLY DEFERRED
+  );
+  INSERT INTO pp VALUES(5);
+  INSERT INTO cc VALUES(5);
+}
+do_execsql_test 2.2 {
+  BEGIN;
+    DROP TABLE pp;
+    DROP TABLE cc;
+  COMMIT;
+}
+do_execsql_test 2.3 {
+  CREATE TABLE pp(x PRIMARY KEY);
+  CREATE TABLE cc(
+    y INTEGER PRIMARY KEY REFERENCES pp DEFERRABLE INITIALLY DEFERRED
+  );
+  INSERT INTO pp VALUES(5);
+  INSERT INTO cc VALUES(5);
+}
+do_execsql_test 2.4 {
+  BEGIN;
+    DROP TABLE cc;
+    DROP TABLE pp;
+  COMMIT;
+}
+
+do_execsql_test 3.1 {
+  CREATE TABLE pp1(x PRIMARY KEY);
+  CREATE TABLE cc1(y REFERENCES pp1 DEFERRABLE INITIALLY DEFERRED);
+
+  CREATE TABLE pp2(x PRIMARY KEY);
+  CREATE TABLE cc2(y REFERENCES pp1 DEFERRABLE INITIALLY DEFERRED);
+
+  INSERT INTO pp1 VALUES(2200);
+  INSERT INTO cc1 VALUES(NULL);
+
+  INSERT INTO pp2 VALUES(2200);
+  INSERT INTO cc2 VALUES(2200);
+}
+do_catchsql_test 3.2 {
+  BEGIN;
+    DELETE FROM pp2;
+    DROP TABLE pp1;
+    DROP TABLE cc1;
+  COMMIT;
+} {1 {FOREIGN KEY constraint failed}}
+do_catchsql_test 3.3 {
+    DROP TABLE cc2;
+  COMMIT;
+} {0 {}}
+
+
+
+finish_test
diff --git a/test/tkt-b351d95f9.test b/test/tkt-b351d95f9.test
new file mode 100644
index 0000000000000000000000000000000000000000..5bd5ee486528842bc51dddc1716f05acb382cf08
--- /dev/null
+++ b/test/tkt-b351d95f9.test
@@ -0,0 +1,47 @@
+# 2010 September 28
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. Specifically,
+# it tests that ticket [b351d95f9cd5ef17e9d9dbae18f5ca8611190001] has been
+# resolved.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+source $testdir/malloc_common.tcl
+
+do_test tkt-b351d95.1 {
+  execsql {
+    CREATE table t1(a,b);
+    INSERT INTO t1 VALUES('name1','This is a test');
+    INSERT INTO t1 VALUES('name2','xyz');
+    CREATE TABLE t2(x,y);
+    INSERT INTO t2 SELECT a, CASE b WHEN 'xyz' THEN null ELSE b END FROM t1;
+    SELECT x, y FROM t2 ORDER BY x;
+  }
+} {name1 {This is a test} name2 {}}
+
+do_test tkt-b351d95.2 {
+  execsql {
+    DELETE FROM t2;
+    INSERT INTO t2 SELECT a, coalesce(b,a) FROM t1;
+    SELECT x, y FROM t2 ORDER BY x;
+  }
+} {name1 {This is a test} name2 xyz}
+do_test tkt-b351d95.3 {
+  execsql {
+    DELETE FROM t2;
+    INSERT INTO t2 SELECT a, coalesce(b,a) FROM t1;
+    SELECT x, y BETWEEN 'xy' AND 'xz' FROM t2 ORDER BY x;
+  }
+} {name1 0 name2 1}
+
+finish_test
diff --git a/test/tkt-b72787b1.test b/test/tkt-b72787b1.test
new file mode 100644
index 0000000000000000000000000000000000000000..dea3f49a6409d2678111bfe9282aac3b36430044
--- /dev/null
+++ b/test/tkt-b72787b1.test
@@ -0,0 +1,82 @@
+# 2011 February 21
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that ticket [b72787b1a7] has been
+# fixed.  From the ticket:
+#
+#     The sqlite3ExpirePreparedStatements routine marks all statements
+#     as expired. This includes statements that are not expired.
+#
+#     Steps to reproduce:
+#
+#        * Prepare a statement (A)
+#        * Alter the schema to invalidate cookie in A
+#        * Prepare a statement (B)
+#        * Run B and have A run as part of B
+#        * A will find a bad cookie and cause *all* statements
+#          to be expired including the currently running B by calling
+#          sqlite3ExpirePreparedStatements
+#        * When control returns to B it will then abort 
+#
+#     The bug is that sqlite3ExpirePreparedStatements expires all statements.
+#     Note that B was prepared after the schema change and hence is perfectly
+#     valid and then is marked as expired while running.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !compound {
+  finish_test
+  return
+}
+
+unset -nocomplain ::STMT
+proc runsql {} {
+  db eval {CREATE TABLE IF NOT EXISTS t4(q)}
+  sqlite3_step $::STMT
+  set rc [sqlite3_column_int $::STMT 0]
+  sqlite3_reset $::STMT
+  return $rc
+}
+
+do_test tkt-b72787b1.1 {
+  db eval {
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(1);
+    INSERT INTO t1 VALUES(2);
+    CREATE TABLE t2(y);
+    INSERT INTO t2 SELECT x+2 FROM t1;
+    INSERT INTO t2 SELECT x+4 FROM t1;
+  }
+  db func runsql ::runsql
+  set DB [sqlite3_connection_pointer db]
+  set sql {SELECT max(x) FROM t1}
+  set ::STMT [sqlite3_prepare_v2 $DB $sql -1 TAIL]
+
+  # The runsql() call on the second row of the first query will
+  # cause all $::STMT to hit an expired cookie.  Prior to the fix
+  # for [b72787b1a7, the bad cookie would expire all statements, including
+  # the following compound SELECT, which would cause a fault when the
+  # second SELECT was reached.  After the fix, the current statement
+  # continues to completion.
+  db eval {
+    SELECT CASE WHEN y=3 THEN y+100 WHEN y==4 THEN runsql()+200
+                ELSE 300+y END FROM t2
+    UNION ALL
+    SELECT * FROM t1;
+  }
+} {103 202 305 306 1 2}
+
+sqlite3_finalize $::STMT
+
+finish_test
diff --git a/test/tkt-b75a9ca6b0.test b/test/tkt-b75a9ca6b0.test
new file mode 100644
index 0000000000000000000000000000000000000000..f5c880449322b1a2901a2da06ba25cce75c94f57
--- /dev/null
+++ b/test/tkt-b75a9ca6b0.test
@@ -0,0 +1,77 @@
+# 2014-04-21
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+# Test that ticket [b75a9ca6b0] has been fixed.
+#
+# Ticket [b75a9ca6b0] concerns queries that have both a GROUP BY
+# and an ORDER BY.  This code verifies that SQLite is able to
+# optimize out the ORDER BY in some circumstances, but retains the
+# ORDER BY when necessary.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix tkt-b75a9ca6b0
+
+do_execsql_test 1 {
+  CREATE TABLE t1 (x, y);
+  INSERT INTO t1 VALUES (1, 3); 
+  INSERT INTO t1 VALUES (2, 2);
+  INSERT INTO t1 VALUES (3, 1);
+}
+
+do_execsql_test 1.1 {
+  CREATE INDEX i1 ON t1(x, y);
+} 
+
+set idxscan {SCAN t1 USING COVERING INDEX i1}
+set tblscan {SCAN t1}
+set grpsort {USE TEMP B-TREE FOR GROUP BY}
+set sort    {USE TEMP B-TREE FOR ORDER BY}
+
+foreach {tn q res eqp} [subst -nocommands {
+  1 "SELECT * FROM t1 GROUP BY x, y ORDER BY x,y"
+  {1 3  2 2  3 1} {$idxscan}
+
+  2 "SELECT * FROM t1 GROUP BY x, y ORDER BY x"
+  {1 3  2 2  3 1} {$idxscan*$sort}
+
+  3 "SELECT * FROM t1 GROUP BY y, x ORDER BY y, x"
+  {3 1  2 2  1 3} {$idxscan*$sort}
+  
+  4 "SELECT * FROM t1 GROUP BY x ORDER BY x"
+  {1 3  2 2  3 1} {$idxscan}
+
+  5 "SELECT * FROM t1 GROUP BY y ORDER BY y"
+  {3 1  2 2  1 3} {$tblscan*$grpsort}
+
+  6 "SELECT * FROM t1 GROUP BY y ORDER BY x"
+  {1 3  2 2  3 1} {$tblscan*$grpsort*$sort}
+
+  7 "SELECT * FROM t1 GROUP BY x, y ORDER BY x, y DESC"
+  {1 3  2 2  3 1} {$idxscan*$sort}
+
+  8 "SELECT * FROM t1 GROUP BY x, y ORDER BY x DESC, y DESC"
+  {3 1  2 2  1 3} {$idxscan}
+
+  9 "SELECT * FROM t1 GROUP BY x, y ORDER BY x ASC, y ASC"
+  {1 3  2 2  3 1} {$idxscan}
+
+  10 "SELECT * FROM t1 GROUP BY x, y ORDER BY x COLLATE nocase, y"
+  {1 3  2 2  3 1} {$idxscan*$sort}
+
+}] {
+  do_execsql_test 1.$tn.1 $q $res
+  do_eqp_test     1.$tn.2 $q $eqp
+}
+
+
+finish_test
diff --git a/test/tkt-ba7cbfaedc.test b/test/tkt-ba7cbfaedc.test
new file mode 100644
index 0000000000000000000000000000000000000000..f83f8a3d178a592d2c4355b72157ba850ff6f67d
--- /dev/null
+++ b/test/tkt-ba7cbfaedc.test
@@ -0,0 +1,63 @@
+# 2014-10-11
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+# Test that ticket [ba7cbfaedc] has been fixed.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix tkt-ba7cbfaedc
+
+do_execsql_test 1 {
+  CREATE TABLE t1 (x, y);
+  INSERT INTO t1 VALUES (3, 'a');
+  INSERT INTO t1 VALUES (1, 'a'); 
+  INSERT INTO t1 VALUES (2, 'b');
+  INSERT INTO t1 VALUES (2, 'a');
+  INSERT INTO t1 VALUES (3, 'b');
+  INSERT INTO t1 VALUES (1, 'b'); 
+}
+
+do_execsql_test 1.1 {
+  CREATE INDEX i1 ON t1(x, y);
+}
+
+foreach {n idx} {
+  1 { CREATE INDEX i1 ON t1(x, y) }
+  2 { CREATE INDEX i1 ON t1(x DESC, y) }
+  3 { CREATE INDEX i1 ON t1(x, y DESC) }
+  4 { CREATE INDEX i1 ON t1(x DESC, y DESC) }
+} {
+  catchsql { DROP INDEX i1 }
+  execsql $idx
+  foreach {tn q res} {
+    1 "GROUP BY x, y ORDER BY x, y"            {1 a 1 b   2 a 2 b   3 a 3 b}
+    2 "GROUP BY x, y ORDER BY x DESC, y"       {3 a 3 b   2 a 2 b   1 a 1 b}
+    3 "GROUP BY x, y ORDER BY x, y DESC"       {1 b 1 a   2 b 2 a   3 b 3 a}
+    4 "GROUP BY x, y ORDER BY x DESC, y DESC"  {3 b 3 a   2 b 2 a   1 b 1 a}
+  } {
+    do_execsql_test 1.$n.$tn "SELECT * FROM t1 $q" $res
+  }
+}
+
+do_execsql_test 2.0 {
+  drop table if exists t1;
+  create table t1(id int);
+  insert into t1(id) values(1),(2),(3),(4),(5);
+  create index t1_idx_id on t1(id asc);
+  select * from t1 group by id order by id;
+  select * from t1 group by id order by id asc;
+  select * from t1 group by id order by id desc;
+} {
+  1 2 3 4 5   1 2 3 4 5   5 4 3 2 1
+}
+
+finish_test
diff --git a/test/tkt-bd484a090c.test b/test/tkt-bd484a090c.test
new file mode 100644
index 0000000000000000000000000000000000000000..7867c8dc97c29ade95d1047313c9cbed483fd57b
--- /dev/null
+++ b/test/tkt-bd484a090c.test
@@ -0,0 +1,38 @@
+# 2011 June 21
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains tests for SQLite. Specifically, it tests that SQLite
+# does not crash and an error is returned if localhost() fails. This 
+# is the problem reported by ticket bd484a090c.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+set testprefix tkt-bd484a090c
+
+
+do_test 1.1 {
+  lindex [catchsql { SELECT datetime('now', 'localtime') }] 0
+} {0}
+do_test 1.2 {
+  lindex [catchsql { SELECT datetime('now', 'utc') }] 0
+} {0}
+
+sqlite3_test_control SQLITE_TESTCTRL_LOCALTIME_FAULT 1
+
+do_test 2.1 {
+  catchsql { SELECT datetime('now', 'localtime') }
+} {1 {local time unavailable}}
+do_test 2.2 {
+  catchsql { SELECT datetime('2000-01-01', 'utc') }
+} {1 {local time unavailable}}
+
+sqlite3_test_control SQLITE_TESTCTRL_LOCALTIME_FAULT 0
+
+finish_test
diff --git a/test/tkt-bdc6bbbb38.test b/test/tkt-bdc6bbbb38.test
new file mode 100644
index 0000000000000000000000000000000000000000..8b0d55df84c2d1ff96699288ad47e26f3f2a807e
--- /dev/null
+++ b/test/tkt-bdc6bbbb38.test
@@ -0,0 +1,90 @@
+# 2012 May 11
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that ticket [bdc6bbbb38] has been
+# fixed.  
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix tkt-bdc6bbbb38
+
+# If SQLITE_ENABLE_FTS3 is defined, omit this file.
+ifcapable !fts3 { finish_test ; return }
+set sqlite_fts3_enable_parentheses 1
+
+foreach {tn idxdir} {1 ASC 2 DESC} {
+  execsql { DROP TABLE IF EXISTS t2 }
+
+  do_execsql_test $tn.1.1 "CREATE VIRTUAL TABLE t2 USING fts4(x, order=$idxdir)"
+  do_execsql_test $tn.1.2 { INSERT INTO t2 VALUES('a b c') }
+
+  do_execsql_test $tn.1.3 {
+    SELECT offsets(t2) FROM t2 WHERE t2 MATCH 'a AND d OR b' ORDER BY docid ASC
+  } {
+    {0 0 0 1 0 2 2 1}
+  }
+  do_execsql_test $tn.1.4 {
+    SELECT snippet(t2,'[',']') FROM t2 WHERE t2 MATCH 'a AND d OR b' 
+    ORDER BY docid ASC
+  } {
+    {[a] [b] c}
+  }
+  do_execsql_test $tn.1.5 { INSERT INTO t2 VALUES('a c d') }
+  do_execsql_test $tn.1.6 {
+    SELECT offsets(t2) FROM t2 WHERE t2 MATCH 'a AND d OR b' ORDER BY docid ASC
+  } {
+    {0 0 0 1 0 2 2 1}
+    {0 0 0 1 0 1 4 1}
+  }
+  do_execsql_test $tn.1.7 {
+    SELECT snippet(t2,'[',']') FROM t2 WHERE t2 MATCH 'a AND d OR b'
+    ORDER BY docid ASC
+  } {
+    {[a] [b] c}
+    {[a] c [d]}
+  }
+
+  execsql { DROP TABLE IF EXISTS t3 }
+  do_execsql_test $tn.2.1 "CREATE VIRTUAL TABLE t3 USING fts4(x, order=$idxdir)"
+  do_execsql_test $tn.2.2 { INSERT INTO t3 VALUES('a c d') }
+  do_execsql_test $tn.2.3 {
+    SELECT offsets(t3) FROM t3 WHERE t3 MATCH 'a AND d OR b' ORDER BY docid DESC
+  } {
+    {0 0 0 1 0 1 4 1}
+  }
+  do_execsql_test $tn.2.4 {
+    SELECT snippet(t3,'[',']') FROM t3 WHERE t3 MATCH 'a AND d OR b'
+      ORDER BY docid DESC
+  } {
+    {[a] c [d]}
+  }
+  do_execsql_test $tn.2.5 { 
+    INSERT INTO t3 VALUES('a b c');
+  }
+  do_execsql_test $tn.2.6 {
+    SELECT offsets(t3) FROM t3 WHERE t3 MATCH 'a AND d OR b' ORDER BY docid DESC
+  } {
+    {0 0 0 1 0 2 2 1}
+    {0 0 0 1 0 1 4 1}
+  }
+  do_execsql_test $tn.2.7 {
+    SELECT snippet(t3,'[',']') FROM t3 WHERE t3 MATCH 'a AND d OR b'
+      ORDER BY docid DESC
+  } {
+    {[a] [b] c}
+    {[a] c [d]}
+  }
+}
+
+set sqlite_fts3_enable_parentheses 0
+finish_test
diff --git a/test/tkt-c48d99d690.test b/test/tkt-c48d99d690.test
new file mode 100644
index 0000000000000000000000000000000000000000..6d1b9dbe619f521937885923941aae74b1fc1da0
--- /dev/null
+++ b/test/tkt-c48d99d690.test
@@ -0,0 +1,25 @@
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+set ::testprefix tkt-c48d99d690
+
+do_test 1.0 {
+  execsql {
+    CREATE TABLE t1(a, b);
+    CREATE TABLE t2(a, b);
+    INSERT INTO t1 VALUES('one'  , 1);
+    INSERT INTO t1 VALUES('two'  , 5);
+    INSERT INTO t1 VALUES('two'  , 2);
+    INSERT INTO t1 VALUES('three', 3);
+    PRAGMA count_changes = 1;
+  }
+} {}
+
+do_test 1.1 {
+  execsql { INSERT INTO t2 SELECT * FROM t1 }
+} {4}
+
+do_test 1.2 { execsql VACUUM } {}
+
+finish_test
diff --git a/test/tkt-c694113d5.test b/test/tkt-c694113d5.test
new file mode 100644
index 0000000000000000000000000000000000000000..bac91fc900f16e9e98e26a38c7d43dcddf4fe1c2
--- /dev/null
+++ b/test/tkt-c694113d5.test
@@ -0,0 +1,36 @@
+# 2018-07-24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. Specifically,
+# it tests that ticket [c694113e50321afdf952e2d1235b08ba663f8399]:
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt-c694113d5.100 {
+  sqlite3 db :memory:
+  db eval {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY);
+    CREATE TABLE t2(d INTEGER PRIMARY KEY,e,f);
+    INSERT INTO t1(a) VALUES(1),(2),(3),(4);
+  }
+  set answer {}
+  db eval {SELECT a FROM t1 WHERE NOT EXISTS(SELECT 1 FROM t2 WHERE d=a)} {
+    if {$a==3} {
+      lappend answer "CREATE INDEX"
+      db eval {CREATE INDEX t2e ON t2(e);}
+    }
+    lappend answer "a=$a"
+  }
+  set answer
+} {a=1 a=2 {CREATE INDEX} a=3 a=4}
+    
+finish_test
diff --git a/test/tkt-cbd054fa6b.test b/test/tkt-cbd054fa6b.test
new file mode 100644
index 0000000000000000000000000000000000000000..435d80787332dc0d9c2ceb57ccedaecb2d2e602e
--- /dev/null
+++ b/test/tkt-cbd054fa6b.test
@@ -0,0 +1,107 @@
+# 2010 March 25
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements tests to verify that ticket [cbd054fa6b] has been
+# fixed.  
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !stat4 {
+  finish_test
+  return
+}
+
+proc s {blob} {
+  set ret ""
+  binary scan $blob c* bytes
+  foreach b $bytes {
+    set t [binary format c $b]
+    if {[string is print $t]} {
+      append ret $t
+    } else {
+      append ret .
+    }
+  }
+  return $ret
+}
+db function s s
+
+do_test tkt-cbd05-1.1 {
+  db eval {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b TEXT UNIQUE NOT NULL);
+    CREATE INDEX t1_x ON t1(b);
+    INSERT INTO t1 VALUES (NULL, '');
+    INSERT INTO t1 VALUES (NULL, 'A');
+    INSERT INTO t1 VALUES (NULL, 'B');
+    INSERT INTO t1 VALUES (NULL, 'C');
+    INSERT INTO t1 VALUES (NULL, 'D');
+    INSERT INTO t1 VALUES (NULL, 'E');
+    INSERT INTO t1 VALUES (NULL, 'F');
+    INSERT INTO t1 VALUES (NULL, 'G');
+    INSERT INTO t1 VALUES (NULL, 'H');
+    INSERT INTO t1 VALUES (NULL, 'I');
+    SELECT count(*) FROM t1;
+  }
+} {10}
+do_test tkt-cbd05-1.2 {
+  db eval { ANALYZE; }
+  db eval {
+    PRAGMA writable_schema = 1;
+    CREATE VIEW vvv AS 
+    SELECT tbl,idx,neq,nlt,ndlt,test_extract(sample,0) AS sample
+    FROM sqlite_stat4;
+    PRAGMA writable_schema = 0;
+  }
+} {}
+do_test tkt-cbd05-1.3 {
+  execsql { 
+    SELECT tbl,idx,string_agg(s(sample),' ') 
+    FROM vvv 
+    WHERE idx = 't1_x' 
+    GROUP BY tbl,idx
+  }
+} {t1 t1_x { A B C D E F G H I}}
+
+do_test tkt-cbd05-2.1 {
+  db eval {
+    DROP TABLE t1;
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b BLOB UNIQUE NOT NULL);
+    CREATE INDEX t1_x ON t1(b);
+    INSERT INTO t1 VALUES(NULL, X'');
+    INSERT INTO t1 VALUES(NULL, X'41');
+    INSERT INTO t1 VALUES(NULL, X'42');
+    INSERT INTO t1 VALUES(NULL, X'43');
+    INSERT INTO t1 VALUES(NULL, X'44');
+    INSERT INTO t1 VALUES(NULL, X'45');
+    INSERT INTO t1 VALUES(NULL, X'46');
+    INSERT INTO t1 VALUES(NULL, X'47');
+    INSERT INTO t1 VALUES(NULL, X'48');
+    INSERT INTO t1 VALUES(NULL, X'49');
+    SELECT count(*) FROM t1;
+  }
+} {10}
+do_test tkt-cbd05-2.2 {
+  db eval {
+    ANALYZE;
+  }
+} {}
+do_test tkt-cbd05-2.3 {
+  execsql { 
+    SELECT tbl,idx,group_concat(s(sample),' ') 
+    FROM vvv 
+    WHERE idx = 't1_x' 
+    GROUP BY tbl,idx
+  }
+} {t1 t1_x { A B C D E F G H I}}
+
+finish_test
diff --git a/test/tkt-d11f09d36e.test b/test/tkt-d11f09d36e.test
new file mode 100644
index 0000000000000000000000000000000000000000..ffd3d219288d2cd5ba6bbdc0dba0007d498c9528
--- /dev/null
+++ b/test/tkt-d11f09d36e.test
@@ -0,0 +1,61 @@
+# 2010 June 26
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test that the bug reported by ticket d11f09d36e7cb0821e01f4 has
+# been fixed.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+set a_string_counter 1
+proc a_string {n} {
+  global a_string_counter
+  incr a_string_counter
+  string range [string repeat "${a_string_counter}." $n] 1 $n
+}
+db func a_string a_string
+
+do_test tkt-d11f09d36e.1 {
+  execsql {
+    PRAGMA synchronous = NORMAL;
+    PRAGMA cache_size = 10;
+    CREATE TABLE t1(x, y, UNIQUE(x, y));
+    BEGIN;
+  }
+  for {set i 0} {$i < 10000} {incr i} {
+    execsql { INSERT INTO t1 VALUES($i, $i) }
+  }
+  execsql COMMIT
+} {}
+do_test tkt-d11f09d36e.2 {
+  execsql {
+    BEGIN;
+      UPDATE t1 set x = x+10000;
+    ROLLBACK;
+  }
+} {}
+do_test tkt-d11f09d36e.3 {
+  execsql { PRAGMA integrity_check }
+} {ok}
+do_test tkt-d11f09d36e.4 {
+  execsql {
+    SAVEPOINT tr;
+      UPDATE t1 set x = x+10000;
+    ROLLBACK TO tr;
+    RELEASE tr;
+  }
+} {}
+do_test tkt-d11f09d36e.5 {
+  execsql { PRAGMA integrity_check }
+} {ok}
+
+finish_test
diff --git a/test/tkt-d635236375.test b/test/tkt-d635236375.test
new file mode 100644
index 0000000000000000000000000000000000000000..3fc782265e2f32671a721f7f2ca797f1f43c1365
--- /dev/null
+++ b/test/tkt-d635236375.test
@@ -0,0 +1,38 @@
+# 2011 August 3
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing that bug [d63523637517386191d634e]
+# has been fixed.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+set ::testprefix tkt-d635236375
+
+do_test 1.0 {
+  execsql {
+    CREATE TABLE t1(id1 INTEGER PRIMARY KEY);
+    INSERT INTO t1 VALUES(9999);
+    CREATE TABLE t2(id2 INTEGER PRIMARY KEY);
+    INSERT INTO t2 VALUES(12345);
+    INSERT INTO t2 VALUES(54321);
+    SELECT DISTINCT id1 AS x, id1 AS y FROM t1, t2;
+  }
+} {9999 9999}
+do_test 1.1 {
+  execsql {
+    SELECT count(*) FROM t1, t2 GROUP BY id1, id1;
+  }
+} {2}
+
+
+finish_test
diff --git a/test/tkt-d82e3f3721.test b/test/tkt-d82e3f3721.test
new file mode 100644
index 0000000000000000000000000000000000000000..da932d1eaa8a5c66ed6f910c46bcbf8c3b9d9891
--- /dev/null
+++ b/test/tkt-d82e3f3721.test
@@ -0,0 +1,85 @@
+# 2009 September 2
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that ticket [d82e3f3721] has been
+# fixed.  
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !compound {
+  finish_test
+  return
+}
+
+do_test tkt-d82e3-1.1 {
+  db eval {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY AUTOINCREMENT, b);
+    INSERT INTO t1 VALUES(null,'abc');
+    INSERT INTO t1 VALUES(null,'def');
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES(null,'ghi');
+    SELECT * FROM t1;
+  }
+} {3 ghi}
+do_test tkt-d82e3-1.2 {
+  db eval {
+    CREATE TEMP TABLE t2(a INTEGER PRIMARY KEY AUTOINCREMENT, b);
+    INSERT INTO t2 VALUES(null,'jkl');
+    INSERT INTO t2 VALUES(null,'mno');
+    DELETE FROM t2;
+    INSERT INTO t2 VALUES(null,'pqr');
+    SELECT * FROM t2;
+  }
+} {3 pqr}
+do_test tkt-d82e3-1.3 {
+  db eval {
+    SELECT 'main', * FROM main.sqlite_sequence
+    UNION ALL
+    SELECT 'temp', * FROM temp.sqlite_sequence
+    ORDER BY 2
+  }
+} {main t1 3 temp t2 3}
+do_test tkt-d82e3-1.4 {
+  db eval {
+    VACUUM;
+    SELECT 'main', * FROM main.sqlite_sequence
+    UNION ALL
+    SELECT 'temp', * FROM temp.sqlite_sequence
+    ORDER BY 2
+  }
+} {main t1 3 temp t2 3}
+
+sqlite3 db2 test.db
+do_test tkt-d82e3-2.1 {
+  db eval {
+    CREATE TEMP TABLE t3(x);
+    INSERT INTO t3 VALUES(1);
+  }
+  db2 eval {
+    CREATE TABLE t3(y,z);
+    INSERT INTO t3 VALUES(8,9);
+  }
+  db eval {
+    SELECT * FROM temp.t3 JOIN main.t3;
+  }
+} {1 8 9}
+do_test tkt-d82e3-2.2 {
+  db eval {
+    VACUUM;
+    SELECT * FROM temp.t3 JOIN main.t3;
+  }
+} {1 8 9}
+db2 close
+
+finish_test
diff --git a/test/tkt-f3e5abed55.test b/test/tkt-f3e5abed55.test
new file mode 100644
index 0000000000000000000000000000000000000000..3c793d4f4da854962f1a16dd9ff6949862acae18
--- /dev/null
+++ b/test/tkt-f3e5abed55.test
@@ -0,0 +1,116 @@
+# 2010 July 29
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+
+foreach f [glob -nocomplain test.db*mj*] { forcedelete $f }
+forcedelete test.db2
+
+do_test tkt-f3e5abed55-1.1 {
+  execsql {
+    ATTACH 'test.db2' AS aux;
+    CREATE TABLE main.t1(a, b);
+    CREATE TABLE aux.t2(c, d);
+  }
+} {}
+
+do_test tkt-f3e5abed55-1.2 {
+  glob -nocomplain test.db*mj*
+} {}
+
+do_test tkt-f3e5abed55-1.3 {
+  sqlite3 db2 test.db
+  execsql { BEGIN; SELECT * FROM t1 } db2
+} {}
+
+do_test tkt-f3e5abed55-1.4 {
+  execsql {
+    BEGIN;
+      INSERT INTO t1 VALUES(1, 2);
+      INSERT INTO t2 VALUES(1, 2);
+  }
+  catchsql COMMIT
+} {1 {database is locked}}
+
+do_test tkt-f3e5abed55-1.5 {
+  execsql COMMIT db2
+  execsql COMMIT
+} {}
+
+do_test tkt-f3e5abed55-1.6 {
+  glob -nocomplain test.db*mj*
+} {}
+foreach f [glob -nocomplain test.db*mj*] { forcedelete $f }
+db close
+db2 close
+
+
+
+# Set up a testvfs so that the next time SQLite tries to delete the
+# file "test.db-journal", a snapshot of the current file-system contents
+# is taken.
+#
+# This test will not work with an in-memory journal.
+#
+if {[permutation]!="inmemory_journal"} {
+  testvfs tvfs -default 1
+  tvfs script xDelete
+  tvfs filter xDelete
+  proc xDelete {method file args} {
+    if {[file tail $file] == "test.db-journal"} {
+      faultsim_save
+      tvfs filter {}
+    }
+    return "SQLITE_OK"
+  }
+  
+  sqlite3 db  test.db
+  sqlite3 db2 test.db
+  do_test tkt-f3e5abed55-2.1 {
+    execsql {
+      ATTACH 'test.db2' AS aux;
+      BEGIN;
+        INSERT INTO t1 VALUES(3, 4);
+        INSERT INTO t2 VALUES(3, 4);
+    }
+  } {}
+  do_test tkt-f3e5abed55-2.2 {
+    execsql { BEGIN; SELECT * FROM t1 } db2
+  } {1 2}
+  do_test tkt-f3e5abed55-2.3 {
+    catchsql COMMIT
+  } {1 {database is locked}}
+  
+  do_test tkt-f3e5abed55-2.4 {
+    execsql COMMIT db2
+    execsql {
+      COMMIT;
+      SELECT * FROM t1;
+      SELECT * FROM t2;
+    }
+  } {1 2 3 4 1 2 3 4}
+  do_test tkt-f3e5abed55-2.5 {
+    db close
+    db2 close
+    faultsim_restore_and_reopen
+    execsql {
+      ATTACH 'test.db2' AS aux;
+      SELECT * FROM t1;
+      SELECT * FROM t2;
+    }
+  } {1 2 3 4 1 2 3 4}
+}
+
+
+finish_test
diff --git a/test/tkt-f67b41381a.test b/test/tkt-f67b41381a.test
new file mode 100644
index 0000000000000000000000000000000000000000..43e5cc7dbb9b64821410d13a227f1687ed2913b3
--- /dev/null
+++ b/test/tkt-f67b41381a.test
@@ -0,0 +1,58 @@
+# 2014 April 26
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# Test that ticket f67b41381a has been resolved.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix tkt-f67b41381a
+
+ifcapable !altertable {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a);
+  INSERT INTO t1 VALUES(1);
+  ALTER TABLE t1 ADD COLUMN b DEFAULT 2;
+  CREATE TABLE t2(a, b);
+  INSERT INTO t2 SELECT * FROM t1;
+  SELECT * FROM t2;
+} {1 2}
+
+db cache size 0
+foreach {tn tbls xfer} {
+  1 { CREATE TABLE t1(a, b); CREATE TABLE t2(a, b)             }             1
+  2 { CREATE TABLE t1(a, b DEFAULT 'x'); CREATE TABLE t2(a, b) }             0
+  3 { CREATE TABLE t1(a, b DEFAULT 'x'); CREATE TABLE t2(a, b DEFAULT 'x') } 1
+  4 { CREATE TABLE t1(a, b DEFAULT NULL); CREATE TABLE t2(a, b) }            0
+  5 { CREATE TABLE t1(a DEFAULT 2, b); CREATE TABLE t2(a DEFAULT 1, b) }     1
+  6 { CREATE TABLE t1(a DEFAULT 1, b); CREATE TABLE t2(a DEFAULT 1, b) }     1
+  7 { CREATE TABLE t1(a DEFAULT 1, b DEFAULT 1);
+      CREATE TABLE t2(a DEFAULT 3, b DEFAULT 1) }                            1
+  8 { CREATE TABLE t1(a DEFAULT 1, b DEFAULT 1);
+      CREATE TABLE t2(a DEFAULT 3, b DEFAULT 3) }                            0
+
+} {
+
+  execsql { DROP TABLE t1; DROP TABLE t2 }
+  execsql $tbls
+
+  set res 1
+  db eval { EXPLAIN INSERT INTO t1 SELECT * FROM t2 } {
+    if {$opcode == "Column"} { set res 0 }
+  }
+
+  do_test 2.$tn [list set res] $xfer
+}
+
+finish_test
diff --git a/test/tkt-f777251dc7a.test b/test/tkt-f777251dc7a.test
new file mode 100644
index 0000000000000000000000000000000000000000..b91e438da5ba23e462389c40ba5b66e5cab929d0
--- /dev/null
+++ b/test/tkt-f777251dc7a.test
@@ -0,0 +1,105 @@
+# 2009 October 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that ticket [f777251dc7a] has been
+# fixed.  
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !compound {
+  finish_test
+  return
+}
+
+do_test tkt-f7772-1.1 {
+  execsql {
+     CREATE TEMP TABLE t1(x UNIQUE);
+     INSERT INTO t1 VALUES(1);
+     CREATE TABLE t2(x, y);
+     INSERT INTO t2 VALUES(1, 2);
+     CREATE TEMP TABLE t3(w, z);
+  }
+} {}
+
+proc force_rollback {} {
+  catch {db eval {INSERT OR ROLLBACK INTO t1 VALUES(1)}}
+}
+db function force_rollback force_rollback
+
+do_test tkt-f7772-1.2 {
+  catchsql {
+    BEGIN IMMEDIATE;
+    CREATE TABLE xyzzy(abc);
+    SELECT x, force_rollback(), EXISTS(SELECT 1 FROM t3 WHERE w=x) FROM t2;
+  }
+} {1 {abort due to ROLLBACK}}
+do_test tkt-f7772-1.3 {
+  sqlite3_get_autocommit db
+} {1}
+
+do_test tkt-f7772-2.1 {
+  execsql {
+     DROP TABLE IF EXISTS t1;
+     DROP TABLE IF EXISTS t2;
+     DROP TABLE IF EXISTS t3;
+
+     CREATE TEMP TABLE t1(x UNIQUE);
+     INSERT INTO t1 VALUES(1);
+     CREATE TABLE t2(x, y);
+     INSERT INTO t2 VALUES(1, 2);
+  }
+} {}
+do_test tkt-f7772-2.2 {
+  execsql {
+    BEGIN IMMEDIATE;
+    CREATE TEMP TABLE t3(w, z);
+  }
+  catchsql {
+    SELECT x, force_rollback(), EXISTS(SELECT 1 FROM t3 WHERE w=x) FROM t2
+  }
+} {1 {abort due to ROLLBACK}}
+do_test tkt-f7772-2.3 {
+  sqlite3_get_autocommit db
+} {1}
+
+do_test tkt-f7772-3.1 {
+  execsql {
+    DROP TABLE IF EXISTS t1;
+    DROP TABLE IF EXISTS t2;
+    DROP TABLE IF EXISTS t3;
+
+    CREATE TEMP TABLE t1(x);
+    CREATE TABLE t2(x);
+    CREATE TABLE t3(x);
+  
+    INSERT INTO t1 VALUES(1);
+    INSERT INTO t1 VALUES(2);
+    INSERT INTO t2 VALUES(1);
+    INSERT INTO t2 VALUES(2);
+  }
+} {}
+
+proc ins {} { db eval {INSERT INTO t3 VALUES('hello')} }
+db function ins ins
+
+do_test tkt-f7772-3.2 {
+  execsql {
+    SELECT ins() AS x FROM t2 UNION ALL SELECT ins() AS x FROM t1
+  }
+} {{} {} {} {}}
+do_test tkt-f7772-3.3 {
+  execsql { SELECT * FROM t3 }
+} {hello hello hello hello}
+
+finish_test
diff --git a/test/tkt-f7b4edec.test b/test/tkt-f7b4edec.test
new file mode 100644
index 0000000000000000000000000000000000000000..d21da31917e81e4ed60a503d5367df7ce27bc99c
--- /dev/null
+++ b/test/tkt-f7b4edec.test
@@ -0,0 +1,75 @@
+# 2011 March 18
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that ticket 
+# [f7b4edece25c994857dc139207f55a53c8319fae] has been fixed.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable !shared_cache { finish_test ; return }
+
+# Open two database connections to the same database file in
+# shared cache mode.  Create update hooks that will fire on
+# each connection.
+#
+db close
+set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
+sqlite3 db1 test.db
+sqlite3 db2 test.db
+unset -nocomplain HOOKS
+set HOOKS {}
+proc update_hook {args} { lappend ::HOOKS $args }
+db1 update_hook update_hook
+db2 update_hook update_hook
+
+# Create a prepared statement
+#
+do_test tkt-f7b4edec-1 {
+  execsql { CREATE TABLE t1(x, y); } db1
+  execsql { INSERT INTO t1 VALUES(1, 2) } db1
+  set ::HOOKS
+} {{INSERT main t1 1}}
+
+# In the second database connection cause the schema to be reparsed
+# without changing the schema cookie.
+#
+set HOOKS {}
+do_test tkt-f7b4edec-2 {
+  execsql {
+    BEGIN;
+      DROP TABLE t1;
+      CREATE TABLE t1(x, y);
+    ROLLBACK;
+  } db2
+  set ::HOOKS
+} {}
+
+# Rerun the prepared statement that was created prior to the 
+# schema reparse.  Verify that the update-hook gives the correct
+# output.
+#
+set HOOKS {}
+do_test tkt-f7b4edec-3 {
+  execsql { INSERT INTO t1 VALUES(1, 2) } db1
+  set ::HOOKS
+} {{INSERT main t1 2}}
+
+# Be sure to restore the original shared-cache mode setting before
+# returning.
+#
+db1 close
+db2 close
+sqlite3_enable_shared_cache $::enable_shared_cache
+
+
+finish_test
diff --git a/test/tkt-f973c7ac31.test b/test/tkt-f973c7ac31.test
new file mode 100644
index 0000000000000000000000000000000000000000..454309057f7f2909d5a89e4be912cf8c4ac56fc8
--- /dev/null
+++ b/test/tkt-f973c7ac31.test
@@ -0,0 +1,86 @@
+# 2010 June 09
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. 
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt-f973c7ac3-1.0 {
+  execsql {
+    CREATE TABLE t(c1 INTEGER, c2 INTEGER);
+    INSERT INTO t VALUES(5, 5);
+    INSERT INTO t VALUES(5, 4);
+  }
+} {}
+
+foreach {tn sql} {
+  1 ""
+  2 "CREATE INDEX i1 ON t(c1, c2)"
+} {
+
+  execsql $sql
+
+  do_test tkt-f973c7ac3-1.$tn.1 {
+    execsql { 
+      SELECT * FROM t WHERE c1 = 5 AND c2>0 AND c2<='2' ORDER BY c2 DESC 
+    }
+  } {}
+  do_test tkt-f973c7ac3-1.$tn.2 {
+    execsql { 
+      SELECT * FROM t WHERE c1 = 5 AND c2>0 AND c2<=5 ORDER BY c2 DESC 
+    }
+  } {5 5 5 4}
+  do_test tkt-f973c7ac3-1.$tn.3 {
+    execsql { 
+      SELECT * FROM t WHERE c1 = 5 AND c2>0 AND c2<='5' ORDER BY c2 DESC 
+    }
+  } {5 5 5 4}
+  do_test tkt-f973c7ac3-1.$tn.4 {
+    execsql { 
+      SELECT * FROM t WHERE c1 = 5 AND c2>'0' AND c2<=5 ORDER BY c2 DESC 
+    }
+  } {5 5 5 4}
+  do_test tkt-f973c7ac3-1.$tn.5 {
+    execsql { 
+      SELECT * FROM t WHERE c1 = 5 AND c2>'0' AND c2<='5' ORDER BY c2 DESC 
+    }
+  } {5 5 5 4}
+
+  do_test tkt-f973c7ac3-1.$tn.6 {
+    execsql { 
+      SELECT * FROM t WHERE c1 = 5 AND c2>0 AND c2<='2' ORDER BY c2 ASC 
+    }
+  } {}
+  do_test tkt-f973c7ac3-1.$tn.7 {
+    execsql { 
+      SELECT * FROM t WHERE c1 = 5 AND c2>0 AND c2<=5 ORDER BY c2 ASC 
+    }
+  } {5 4 5 5}
+  do_test tkt-f973c7ac3-1.$tn.8 {
+    execsql { 
+      SELECT * FROM t WHERE c1 = 5 AND c2>0 AND c2<='5' ORDER BY c2 ASC 
+    }
+  } {5 4 5 5}
+  do_test tkt-f973c7ac3-1.$tn.9 {
+    execsql { 
+      SELECT * FROM t WHERE c1 = 5 AND c2>'0' AND c2<=5 ORDER BY c2 ASC 
+    }
+  } {5 4 5 5}
+  do_test tkt-f973c7ac3-1.$tn.10 {
+    execsql { 
+      SELECT * FROM t WHERE c1 = 5 AND c2>'0' AND c2<='5' ORDER BY c2 ASC 
+    }
+  } {5 4 5 5}
+} 
+
+
+finish_test
diff --git a/test/tkt-fa7bf5ec.test b/test/tkt-fa7bf5ec.test
new file mode 100644
index 0000000000000000000000000000000000000000..34f12b96773cca65049d5a87319f4993300fc7b2
--- /dev/null
+++ b/test/tkt-fa7bf5ec.test
@@ -0,0 +1,39 @@
+# 2011 October 13
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. Specifically,
+# it tests that ticket [fa7bf5ec94801e7e2030e41eefe5d9dd96eaacfd] has
+# been resolved.
+#
+# The problem described by this ticket was that the sqlite3ExprCompare()
+# function was saying that expressions (x='a') and (x='A') were identical
+# because it was using sqlite3StrICmp() instead of strcmp() to compare string
+# literals.  That was causing the query optimizer for aggregate queries to 
+# believe that both count() operations were identical, and thus only 
+# computing the first count() and making a copy of the result for the 
+# second count().
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt-fa7bf5ec-1 {
+  execsql {
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES ('a');
+    INSERT INTO t1 VALUES ('A');
+    INSERT INTO t1 VALUES ('A');
+    SELECT count(CASE WHEN x='a' THEN 1 END),
+           count(CASE WHEN x='A' THEN 1 END)
+      FROM t1;
+  }
+} {1 2}
+
+finish_test
diff --git a/test/tkt-fc62af4523.test b/test/tkt-fc62af4523.test
new file mode 100644
index 0000000000000000000000000000000000000000..ed1497b948cc4ee26cf57e49d84695135a256e78
--- /dev/null
+++ b/test/tkt-fc62af4523.test
@@ -0,0 +1,84 @@
+# 2010 June 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. Specifically,
+# it tests that ticket [fc62af4523] has been resolved.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+source $testdir/malloc_common.tcl
+
+do_test tkt-fc62af4523.1 {
+  execsql {
+    PRAGMA cache_size = 10;
+    PRAGMA journal_mode = persist;
+    CREATE TABLE t1(a UNIQUE, b UNIQUE);
+    INSERT INTO t1 SELECT randomblob(200), randomblob(300);
+    INSERT INTO t1 SELECT randomblob(200), randomblob(300) FROM t1; --  2
+    INSERT INTO t1 SELECT randomblob(200), randomblob(300) FROM t1; --  4
+    INSERT INTO t1 SELECT randomblob(200), randomblob(300) FROM t1; --  8
+    INSERT INTO t1 SELECT randomblob(200), randomblob(300) FROM t1; -- 16
+    INSERT INTO t1 SELECT randomblob(200), randomblob(300) FROM t1; -- 32
+    INSERT INTO t1 SELECT randomblob(200), randomblob(300) FROM t1; -- 64
+  }
+  execsql {
+    PRAGMA integrity_check;
+    SELECT count(*) FROM t1;
+  }
+} {ok 64}
+
+# Launch an external process. Have it write (but not commit) a large
+# transaction to the database.
+#
+set ::chan [launch_testfixture]
+proc buddy {code} { testfixture $::chan $code }
+do_test tkt-fc62af4523.2 {
+  testfixture $::chan {
+    sqlite3 db test.db
+    db eval {
+      PRAGMA cache_size = 10;
+      BEGIN;
+        UPDATE t1 SET b = randomblob(400);
+        UPDATE t1 SET a = randomblob(201);
+    }
+  }
+  file exists test.db-journal
+} {1}
+
+# Now do "PRAGMA journal_mode = DELETE" in this process. At one point
+# this was causing SQLite to delete the journal file from the file-system,
+# even though the external process is currently using it.
+#
+do_test tkt-fc62af4523.3 { execsql { PRAGMA journal_mode = DELETE } } {delete}
+do_test tkt-fc62af4523.4 { file exists test.db-journal } {1}
+
+# Cause the external process to crash. Since it has already written 
+# uncommitted data into the database file, the next reader will have
+# to do a hot-journal rollback to recover the database.
+#
+# Or, if this test is run in a version with the bug present, the journal
+# file has already been deleted. In this case we are left with a corrupt
+# database file and no hot-journal to fix it with.
+#
+do_test tkt-fc62af4523.5 {
+  testfixture $::chan sqlite_abort
+} {ERROR: Child process hung up}
+after 200
+do_test tkt-fc62af4523.6 {
+  execsql {
+    PRAGMA integrity_check;
+    SELECT count(*) FROM t1;
+  }
+} {ok 64}
+
+catch { close $::chan }
+finish_test
diff --git a/test/tkt-fc7bd6358f.test b/test/tkt-fc7bd6358f.test
new file mode 100644
index 0000000000000000000000000000000000000000..a1b13c463c70c42bed43eb9b214c1bac3bcd8ffd
--- /dev/null
+++ b/test/tkt-fc7bd6358f.test
@@ -0,0 +1,78 @@
+# 2013 March 05
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. Specifically,
+# it tests that ticket [fc7bd6358f]:
+#
+# The following SQL yields an incorrect result (zero rows) in all
+# versions of SQLite between 3.6.14 and 3.7.15.2:
+#
+#    CREATE TABLE t(textid TEXT);
+#    INSERT INTO t VALUES('12');
+#    INSERT INTO t VALUES('34');
+#    CREATE TABLE i(intid INTEGER PRIMARY KEY);
+#    INSERT INTO i VALUES(12);
+#    INSERT INTO i VALUES(34);
+#
+#    SELECT t1.textid AS a, i.intid AS b, t2.textid AS c
+#      FROM t t1, i, t t2
+#     WHERE t1.textid = i.intid
+#       AND t1.textid = t2.textid;
+#
+# The correct result should be two rows, one with 12|12|12 and the other
+# with 34|34|34. With this bug, no rows are returned. Bisecting shows that
+# this bug was introduced with check-in [dd4d67a67454] on 2009-04-23. 
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt-fc7bd6358f.100 {
+  db eval {
+    CREATE TABLE t(textid TEXT);
+    INSERT INTO t VALUES('12');
+    INSERT INTO t VALUES('34');
+    CREATE TABLE i(intid INTEGER PRIMARY KEY);
+    INSERT INTO i VALUES(12);
+    INSERT INTO i VALUES(34);
+  }
+} {}
+unset -nocomplain from
+unset -nocomplain where
+unset -nocomplain a
+unset -nocomplain b
+foreach {a from} {
+  1 {FROM t t1, i, t t2}
+  2 {FROM i, t t1, t t2}
+  3 {FROM t t1, t t2, i}
+} {
+  foreach {b where} {
+    1 {WHERE t1.textid=i.intid AND t1.textid=t2.textid}
+    2 {WHERE i.intid=t1.textid AND t1.textid=t2.textid}
+    3 {WHERE t1.textid=i.intid AND i.intid=t2.textid}
+    4 {WHERE t1.textid=i.intid AND t2.textid=i.intid}
+    5 {WHERE i.intid=t1.textid AND i.intid=t2.textid}
+    6 {WHERE i.intid=t1.textid AND t2.textid=i.intid}
+    7 {WHERE t1.textid=t2.textid AND i.intid=t2.textid}
+    8 {WHERE t1.textid=t2.textid AND t2.textid=i.intid}
+  } {
+    do_test tkt-fc7bd6358f.110.$a.$b.1 {
+       db eval {PRAGMA automatic_index=ON}
+       db eval "SELECT t1.textid, i.intid, t2.textid $from $where"
+    } {12 12 12 34 34 34}
+    do_test tkt-fc7bd6358f.110.$a.$b.2 {
+       db eval {PRAGMA automatic_index=OFF}
+       db eval "SELECT t1.textid, i.intid, t2.textid $from $where"
+    } {12 12 12 34 34 34}
+  }
+}
+
+    
+finish_test
diff --git a/test/tkt1435.test b/test/tkt1435.test
new file mode 100644
index 0000000000000000000000000000000000000000..1f62147b4465181095dd521faf0567defef18b44
--- /dev/null
+++ b/test/tkt1435.test
@@ -0,0 +1,111 @@
+# 2005 September 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that ticket #1435 has been
+# fixed.  
+#
+#
+# $Id: tkt1435.test,v 1.2 2006/01/17 09:35:02 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !memorydb {
+  finish_test
+  return
+}
+
+# Construct the sample database.
+#
+do_test tkt1435-1.0 {
+  sqlite3 db :memory:
+  execsql {
+    CREATE TABLE Instances(
+    	instanceId INTEGER PRIMARY KEY,
+    	troveName STR,
+    	versionId INT,
+    	flavorId INT,
+    	timeStamps STR,
+    	isPresent INT,
+    	pinned BOOLEAN
+    );
+    INSERT INTO "Instances"
+       VALUES(1, 'libhello:runtime', 1, 1, 1126929880.094, 1, 1);
+    INSERT INTO "Instances"
+       VALUES(2, 'libhello:user', 1, 1, 1126929880.094, 1, 0);
+    INSERT INTO "Instances"
+       VALUES(3, 'libhello:script', 1, 1, 1126929880.094, 1, 0);
+    INSERT INTO "Instances"
+       VALUES(4, 'libhello', 1, 1, 1126929880.094, 1, 0);
+    
+    CREATE TABLE Versions(versionId INTEGER PRIMARY KEY,version STR UNIQUE);
+    INSERT INTO "Versions" VALUES(0, NULL);
+    INSERT INTO "Versions" VALUES(1, '/localhost@rpl:linux/0-1-1');
+    
+    CREATE TABLE Flavors(flavorId integer primary key, flavor str unique);
+    INSERT INTO "Flavors" VALUES(0, NULL);
+    INSERT INTO "Flavors" VALUES(1, '1#x86');
+    
+    CREATE TEMPORARY TABLE tlList (
+       row INTEGER PRIMARY KEY,
+       name STRING,
+       version STRING,
+       flavor STRING
+    );
+    
+    INSERT INTO tlList 
+      values(NULL, 'libhello:script', '/localhost@rpl:linux/0-1-1', '1#x86');
+    INSERT INTO tlList 
+      values(NULL, 'libhello:user', '/localhost@rpl:linux/0-1-1', '1#x86');
+    INSERT INTO tlList 
+      values(NULL, 'libhello:runtime', '/localhost@rpl:linux/0-1-1', '1#x86');
+  }
+} {}
+
+# Run the query with an index
+#
+do_test tkt1435-1.1 {
+  execsql {
+    select row, pinned from tlList, Instances, Versions, Flavors
+        where
+            Instances.troveName = tlList.name
+        and Versions.version = tlList.version
+        and Instances.versionId = Versions.versionId
+        and (    Flavors.flavor = tlList.flavor or Flavors.flavor is NULL
+             and tlList.flavor = '')
+        and Instances.flavorId = Flavors.flavorId
+    order by row asc;
+  }
+} {1 0 2 0 3 1}
+
+# Create a indices, analyze and rerun the query. 
+# Verify that the results are the same
+#
+do_test tkt1435-1.2 {
+  execsql {
+    CREATE INDEX InstancesNameIdx ON Instances(troveName);
+    CREATE UNIQUE INDEX InstancesIdx 
+      ON Instances(troveName, versionId, flavorId);
+    ANALYZE;
+    select row, pinned from tlList, Instances, Versions, Flavors
+        where
+            Instances.troveName = tlList.name
+        and Versions.version = tlList.version
+        and Instances.versionId = Versions.versionId
+        and (    Flavors.flavor = tlList.flavor or Flavors.flavor is NULL
+             and tlList.flavor = '')
+        and Instances.flavorId = Flavors.flavorId
+    order by row asc;
+  }
+} {1 0 2 0 3 1}
+
+finish_test
diff --git a/test/tkt1443.test b/test/tkt1443.test
new file mode 100644
index 0000000000000000000000000000000000000000..0f55437bcaa61b22d05ec7b2748dd674db66ba13
--- /dev/null
+++ b/test/tkt1443.test
@@ -0,0 +1,180 @@
+# 2005 September 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that ticket #1433 has been
+# fixed.  
+#
+# The problem in ticket #1433 was that the dependencies on the right-hand
+# side of an IN operator were not being checked correctly.  So in an
+# expression of the form:
+#
+#         t1.x IN (1,t2.b,3)
+#
+# the optimizer was missing the fact that the right-hand side of the IN
+# depended on table t2.  It was checking dependencies based on the
+# Expr.pRight field rather than Expr.pList and Expr.pSelect.  
+#
+# Such a bug could be verifed using a less elaborate test case.  But
+# this test case (from the original bug poster) exercises so many different
+# parts of the system all at once, that it seemed like a good one to
+# include in the test suite. 
+#
+# NOTE:  Yes, in spite of the name of this file (tkt1443.test) this
+# test is for ticket #1433 not #1443.  I mistyped the name when I was
+# creating the file and I had already checked in the file by the wrong
+# name be the time I noticed the error.  With CVS it is a really hassle
+# to change filenames, so I'll just leave it as is.  No harm done.
+#
+# $Id: tkt1443.test,v 1.4 2006/01/17 09:35:02 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !subquery||!memorydb {
+  finish_test
+  return
+}
+
+# Construct the sample database.
+#
+do_test tkt1443-1.0 {
+  sqlite3 db :memory:
+  execsql {
+    CREATE TABLE Items(
+    	itemId integer primary key,
+    	 item str unique
+    );
+    INSERT INTO "Items" VALUES(0, 'ALL');
+    INSERT INTO "Items" VALUES(1, 'double:source');
+    INSERT INTO "Items" VALUES(2, 'double');
+    INSERT INTO "Items" VALUES(3, 'double:runtime');
+    INSERT INTO "Items" VALUES(4, '.*:runtime');
+    
+    CREATE TABLE Labels(
+    	labelId INTEGER PRIMARY KEY,
+    	label STR UNIQUE
+    );
+    INSERT INTO "Labels" VALUES(0, 'ALL');
+    INSERT INTO "Labels" VALUES(1, 'localhost@rpl:linux');
+    INSERT INTO "Labels" VALUES(2, 'localhost@rpl:branch');
+    
+    CREATE TABLE LabelMap(
+    	itemId INTEGER,
+    	labelId INTEGER,
+    	branchId integer
+    );
+    INSERT INTO "LabelMap" VALUES(1, 1, 1);
+    INSERT INTO "LabelMap" VALUES(2, 1, 1);
+    INSERT INTO "LabelMap" VALUES(3, 1, 1);
+    INSERT INTO "LabelMap" VALUES(1, 2, 2);
+    INSERT INTO "LabelMap" VALUES(2, 2, 3);
+    INSERT INTO "LabelMap" VALUES(3, 2, 3);
+    
+    CREATE TABLE Users (
+    	userId INTEGER PRIMARY KEY,
+    	user STRING UNIQUE,
+    	salt BINARY,
+    	password STRING
+    );
+    INSERT INTO "Users" VALUES(1, 'test', 'Šæ$d',
+               '43ba0f45014306bd6df529551ffdb3df');
+    INSERT INTO "Users" VALUES(2, 'limited', 'ªš>S',
+               'cf07c8348fdf675cc1f7696b7d45191b');
+    CREATE TABLE UserGroups (
+    	userGroupId INTEGER PRIMARY KEY,
+    	userGroup STRING UNIQUE
+    );
+    INSERT INTO "UserGroups" VALUES(1, 'test');
+    INSERT INTO "UserGroups" VALUES(2, 'limited');
+    
+    CREATE TABLE UserGroupMembers (
+    	userGroupId INTEGER,
+    	userId INTEGER
+    );
+    INSERT INTO "UserGroupMembers" VALUES(1, 1);
+    INSERT INTO "UserGroupMembers" VALUES(2, 2);
+    
+    CREATE TABLE Permissions (
+    	userGroupId INTEGER,
+    	labelId INTEGER NOT NULL,
+    	itemId INTEGER NOT NULL,
+    	write INTEGER,
+    	capped INTEGER,
+    	admin INTEGER
+    );
+    INSERT INTO "Permissions" VALUES(1, 0, 0, 1, 0, 1);
+    INSERT INTO "Permissions" VALUES(2, 2, 4, 0, 0, 0);
+  }
+} {}
+
+# Run the query with an index
+#
+do_test tkt1443-1.1 {
+  execsql {
+    select distinct
+        Items.Item as trove, UP.pattern as pattern
+    from
+       ( select
+           Permissions.labelId as labelId,
+           PerItems.item as pattern
+         from
+           Users, UserGroupMembers, Permissions
+           left outer join Items as PerItems
+                 on Permissions.itemId = PerItems.itemId
+         where
+               Users.user = 'limited'
+           and Users.userId = UserGroupMembers.userId
+           and UserGroupMembers.userGroupId = Permissions.userGroupId
+       ) as UP join LabelMap on ( UP.labelId = 0 or
+                                  UP.labelId = LabelMap.labelId ),
+       Labels, Items
+    where
+        Labels.label = 'localhost@rpl:branch'
+    and Labels.labelId = LabelMap.labelId
+    and LabelMap.itemId = Items.itemId
+    ORDER BY +trove, +pattern
+  }
+} {double .*:runtime double:runtime .*:runtime double:source .*:runtime}
+
+# Create an index and rerun the query. 
+# Verify that the results are the same
+#
+do_test tkt1443-1.2 {
+  execsql {
+    CREATE UNIQUE INDEX PermissionsIdx
+         ON Permissions(userGroupId, labelId, itemId);
+    select distinct
+        Items.Item as trove, UP.pattern as pattern
+    from
+       ( select
+           Permissions.labelId as labelId,
+           PerItems.item as pattern
+         from
+           Users, UserGroupMembers, Permissions
+           left outer join Items as PerItems
+                 on Permissions.itemId = PerItems.itemId
+         where
+               Users.user = 'limited'
+           and Users.userId = UserGroupMembers.userId
+           and UserGroupMembers.userGroupId = Permissions.userGroupId
+       ) as UP join LabelMap on ( UP.labelId = 0 or
+                                  UP.labelId = LabelMap.labelId ),
+       Labels, Items
+    where
+        Labels.label = 'localhost@rpl:branch'
+    and Labels.labelId = LabelMap.labelId
+    and LabelMap.itemId = Items.itemId
+    ORDER BY +trove, +pattern
+  }
+} {double .*:runtime double:runtime .*:runtime double:source .*:runtime}
+
+finish_test
diff --git a/test/tkt1444.test b/test/tkt1444.test
new file mode 100644
index 0000000000000000000000000000000000000000..13870db8e807ce62eaef919922e450b74125e447
--- /dev/null
+++ b/test/tkt1444.test
@@ -0,0 +1,56 @@
+# 2005 September 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that ticket #1444 has been
+# fixed.  
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !compound||!view {
+  finish_test
+  return 
+}
+
+# The use of a VIEW that contained an ORDER BY clause within a UNION ALL
+# was causing problems.  See ticket #1444.
+#
+do_test tkt1444-1.1 {
+  execsql {
+    CREATE TABLE DemoTable (x INTEGER, TextKey TEXT, DKey Real);
+    CREATE INDEX DemoTableIdx ON DemoTable (TextKey);
+    INSERT INTO DemoTable VALUES(9,8,7);
+    INSERT INTO DemoTable VALUES(1,2,3);
+    CREATE VIEW DemoView AS SELECT * FROM DemoTable ORDER BY TextKey;
+    SELECT * FROM DemoTable UNION ALL SELECT * FROM DemoView ORDER BY 1;
+  }
+} {1 2 3.0 1 2 3.0 9 8 7.0 9 8 7.0}
+do_test tkt1444-1.2 {
+  execsql {
+    SELECT * FROM DemoTable UNION ALL SELECT * FROM DemoView;
+  }
+} {9 8 7.0 1 2 3.0 1 2 3.0 9 8 7.0}
+do_test tkt1444-1.3 {
+  execsql {
+    DROP VIEW DemoView;
+    CREATE VIEW DemoView AS SELECT * FROM DemoTable;
+    SELECT * FROM DemoTable UNION ALL SELECT * FROM DemoView ORDER BY 1;
+  }
+} {1 2 3.0 1 2 3.0 9 8 7.0 9 8 7.0}
+do_test tkt1444-1.4 {
+  execsql {
+    SELECT * FROM DemoTable UNION ALL SELECT * FROM DemoView;
+  }
+} {9 8 7.0 1 2 3.0 9 8 7.0 1 2 3.0}
+
+finish_test
diff --git a/test/tkt1449.test b/test/tkt1449.test
new file mode 100644
index 0000000000000000000000000000000000000000..5f27ee7a4c6d6b09396309ecd115b9ba9fcab352
--- /dev/null
+++ b/test/tkt1449.test
@@ -0,0 +1,262 @@
+# 2005 September 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that ticket #1449 has been
+# fixed.  
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Somewhere in tkt1449-1.1 is a VIEW definition that uses a subquery and
+# a compound SELECT. So we cannot run this file if any of these features
+# are not available.
+ifcapable !subquery||!compound||!view {
+  finish_test
+  return
+}
+
+# The following schema generated problems in ticket #1449.  We've retained
+# the original schema here because it is some unbelievably complex, it seemed
+# like a good test case for SQLite.
+#
+do_test tkt1449-1.1 {
+  execsql {
+    BEGIN;
+    CREATE TABLE ACLS(ISSUEID text(50) not null, OBJECTID text(50) not null, PARTICIPANTID text(50) not null, PERMISSIONBITS int not null, constraint PK_ACLS primary key (ISSUEID, OBJECTID, PARTICIPANTID));
+    CREATE TABLE ACTIONITEMSTATUSES(CLASSID int null, SEQNO int not null, LASTMODONNODEID text(50) not null, PREVMODONNODEID text(50) null, ISSUEID text(50) not null, OBJECTID text(50) not null, REVISIONNUM int not null, CONTAINERID text(50) not null, AUTHORID text(50) not null, CREATIONDATE text(25) null, LASTMODIFIEDDATE text(25) null, UPDATENUMBER int null, PREVREVISIONNUM int null, LASTCMD int null, LASTCMDACLVERSION int null, USERDEFINEDFIELD text(300) null, LASTMODIFIEDBYID text(50) null, FRIENDLYNAME text(100) not null, REVISION int not null, SHORTNAME text(30) not null, LONGNAME text(200) not null, ATTACHMENTHANDLING int not null, RESULT int not null, NOTIFYCREATOR text(1) null, NOTIFYASSIGNEE text(1) null, NOTIFYFYI text(1) null, NOTIFYCLOSURETEAM text(1) null, NOTIFYCOORDINATORS text(1) null, COMMENTREQUIRED text(1) not null, constraint PK_ACTIONITEMSTATUSES primary key (ISSUEID, OBJECTID));
+    CREATE TABLE ACTIONITEMTYPES(CLASSID int null, SEQNO int not null, LASTMODONNODEID text(50) not null, PREVMODONNODEID text(50) null, ISSUEID text(50) not null, OBJECTID text(50) not null, REVISIONNUM int not null, CONTAINERID text(50) not null, AUTHORID text(50) not null, CREATIONDATE text(25) null, LASTMODIFIEDDATE text(25) null, UPDATENUMBER int null, PREVREVISIONNUM int null, LASTCMD int null, LASTCMDACLVERSION int null, USERDEFINEDFIELD text(300) null, LASTMODIFIEDBYID text(50) null, REVISION int not null, LABEL text(200) not null, INSTRUCTIONS text not null, EMAILINSTRUCTIONS text null, ALLOWEDSTATUSES text not null, INITIALSTATUS text(100) not null, COMMENTREQUIRED text(1) not null, ATTACHMENTHANDLING int not null, constraint PK_ACTIONITEMTYPES primary key (ISSUEID, OBJECTID));
+    CREATE TABLE ATTACHMENTS(TQUNID text(36) not null, OBJECTID text(50) null, ISSUEID text(50) null, DATASTREAM blob not null, CONTENTENCODING text(50) null, CONTENTCHARSET text(50) null, CONTENTTYPE text(100) null, CONTENTID text(100) null, CONTENTLOCATION text(100) null, CONTENTNAME text(100) not null, constraint PK_ATTACHMENTS primary key (TQUNID));
+    CREATE TABLE COMPLIANCEPOLICIES(CLASSID int null, SEQNO int not null, LASTMODONNODEID text(50) not null, PREVMODONNODEID text(50) null, ISSUEID text(50) not null, OBJECTID text(50) not null, REVISIONNUM int not null, CONTAINERID text(50) not null, AUTHORID text(50) not null, CREATIONDATE text(25) null, LASTMODIFIEDDATE text(25) null, UPDATENUMBER int null, PREVREVISIONNUM int null, LASTCMD int null, LASTCMDACLVERSION int null, USERDEFINEDFIELD text(300) null, LASTMODIFIEDBYID text(50) null, BODY text null, constraint PK_COMPLIANCEPOLICIES primary key (ISSUEID, OBJECTID));
+    CREATE TABLE DBHISTORY(DATETIME text(25) not null, OPERATION text(20) not null, KUBIVERSION text(100) not null, FROMVERSION int null, TOVERSION int null);
+    CREATE TABLE DBINFO(FINGERPRINT text(32) not null, VERSION int not null);
+    CREATE TABLE DETACHEDATTACHMENTS (TQUNID text(36) not null, ISSUEID text(50) not null, OBJECTID text(50) not null, PATH text(300) not null, DETACHEDFILELASTMODTIMESTAMP text(25) null, CONTENTID text(100) not null, constraint PK_DETACHEDATTACHMENTS primary key (TQUNID));
+    CREATE TABLE DOCREFERENCES(CLASSID int null, SEQNO int not null, LASTMODONNODEID text(50) not null, PREVMODONNODEID text(50) null, ISSUEID text(50) not null, OBJECTID text(50) not null, REVISIONNUM int not null, CONTAINERID text(50) not null, AUTHORID text(50) not null, CREATIONDATE text(25) null, LASTMODIFIEDDATE text(25) null, UPDATENUMBER int null, PREVREVISIONNUM int null, LASTCMD int null, LASTCMDACLVERSION int null, USERDEFINEDFIELD text(300) null, LASTMODIFIEDBYID text(50) null, REFERENCEDOCUMENTID text(50) null, constraint PK_DOCREFERENCES primary key (ISSUEID, OBJECTID));
+    CREATE TABLE DQ (TQUNID text(36) not null, ISSUEID text(50) not null, DEPENDSID text(50) null, DEPENDSTYPE int null, DEPENDSCOMMANDSTREAM blob null, DEPENDSNODEIDSEQNOKEY text(100) null, DEPENDSACLVERSION int null, constraint PK_DQ primary key (TQUNID));
+    CREATE TABLE EMAILQ(TIMEQUEUED int not null, NODEID text(50) not null, MIME blob not null, TQUNID text(36) not null);
+    CREATE TABLE ENTERPRISEDATA(CLASSID int null, SEQNO int not null, LASTMODONNODEID text(50) not null, PREVMODONNODEID text(50) null, ISSUEID text(50) not null, OBJECTID text(50) not null, REVISIONNUM int not null, CONTAINERID text(50) not null, AUTHORID text(50) not null, CREATIONDATE text(25) null, LASTMODIFIEDDATE text(25) null, UPDATENUMBER int null, PREVREVISIONNUM int null, LASTCMD int null, LASTCMDACLVERSION int null, USERDEFINEDFIELD text(300) null, LASTMODIFIEDBYID text(50) null, DATE1 text(25) null, DATE2 text(25) null, DATE3 text(25) null, DATE4 text(25) null, DATE5 text(25) null, DATE6 text(25) null, DATE7 text(25) null, DATE8 text(25) null, DATE9 text(25) null, DATE10 text(25) null, VALUE1 int null, VALUE2 int null, VALUE3 int null, VALUE4 int null, VALUE5 int null, VALUE6 int null, VALUE7 int null, VALUE8 int null, VALUE9 int null, VALUE10 int null, VALUE11 int null, VALUE12 int null, VALUE13 int null, VALUE14 int null, VALUE15 int null, VALUE16 int null, VALUE17 int null, VALUE18 int null, VALUE19 int null, VALUE20 int null, STRING1 text(300) null, STRING2 text(300) null, STRING3 text(300) null, STRING4 text(300) null, STRING5 text(300) null, STRING6 text(300) null, STRING7 text(300) null, STRING8 text(300) null, STRING9 text(300) null, STRING10 text(300) null, LONGSTRING1 text null, LONGSTRING2 text null, LONGSTRING3 text null, LONGSTRING4 text null, LONGSTRING5 text null, LONGSTRING6 text null, LONGSTRING7 text null, LONGSTRING8 text null, LONGSTRING9 text null, LONGSTRING10 text null, constraint PK_ENTERPRISEDATA primary key (ISSUEID, OBJECTID));
+    CREATE TABLE FILEMORGUE(TQUNID text(36) not null, PATH text(300) not null, DELETEFOLDERWHENEMPTY text(1) null, constraint PK_FILEMORGUE primary key (TQUNID));
+    CREATE TABLE FILES(CLASSID int null, SEQNO int not null, LASTMODONNODEID text(50) not null, PREVMODONNODEID text(50) null, ISSUEID text(50) not null, OBJECTID text(50) not null, REVISIONNUM int not null, CONTAINERID text(50) not null, AUTHORID text(50) not null, CREATIONDATE text(25) null, LASTMODIFIEDDATE text(25) null, UPDATENUMBER int null, PREVREVISIONNUM int null, LASTCMD int null, LASTCMDACLVERSION int null, USERDEFINEDFIELD text(300) null, LASTMODIFIEDBYID text(50) null, PARENTENTITYID text(50) null, BODY text null, BODYCONTENTTYPE text(100) null, ISOBSOLETE text(1) null, FILENAME text(300) not null, VISIBLENAME text(300) not null, VERSIONSTRING text(300) not null, DOCUMENTHASH text(40) not null, ISFINAL text(1) null, DOCREFERENCEID text(50) not null, constraint PK_FILES primary key (ISSUEID, OBJECTID));
+    CREATE TABLE FOLDERS(CLASSID int null, SEQNO int not null, LASTMODONNODEID text(50) not null, PREVMODONNODEID text(50) null, ISSUEID text(50) not null, OBJECTID text(50) not null, REVISIONNUM int not null, CONTAINERID text(50) not null, AUTHORID text(50) not null, CREATIONDATE text(25) null, LASTMODIFIEDDATE text(25) null, UPDATENUMBER int null, PREVREVISIONNUM int null, LASTCMD int null, LASTCMDACLVERSION int null, USERDEFINEDFIELD text(300) null, LASTMODIFIEDBYID text(50) null, CONTAINERNAME text(300) null, CONTAINERACLSETTINGS text null, constraint PK_FOLDERS primary key (ISSUEID, OBJECTID));
+    CREATE TABLE GLOBALSETTINGS(CLASSID int null, SEQNO int not null, LASTMODONNODEID text(50) not null, PREVMODONNODEID text(50) null, ISSUEID text(50) not null, OBJECTID text(50) not null, REVISIONNUM int not null, CONTAINERID text(50) not null, AUTHORID text(50) not null, CREATIONDATE text(25) null, LASTMODIFIEDDATE text(25) null, UPDATENUMBER int null, PREVREVISIONNUM int null, LASTCMD int null, LASTCMDACLVERSION int null, USERDEFINEDFIELD text(300) null, LASTMODIFIEDBYID text(50) null, SINGULARPROJECTLABEL text(30) not null, PLURALPROJECTLABEL text(30) not null, PROJECTREQUIRED text(1) not null, CUSTOMPROJECTSALLOWED text(1) not null, ACTIONITEMSPECXML text null, PROJECTLISTXML text null, ENTERPRISEDATALABELS text null, ENTERPRISEDATATABXSL text null, constraint PK_GLOBALSETTINGS primary key (ISSUEID, OBJECTID));
+    CREATE TABLE GLOBALSTRINGPROPERTIES(ID int not null, VALUE text(300) not null, constraint PK_GLOBALSTRINGPROPERTIES primary key (ID));
+    CREATE TABLE IMQ(TQUNID text(36) not null, DATETIMEQUEUED text(25) not null, ISSUEID text(50) not null, KUBIBUILD text(30) not null, FAILCOUNT int not null, LASTRUN text(25) null, ENVELOPESTREAM blob not null, PAYLOADSTREAM blob not null, constraint PK_IMQ primary key (TQUNID));
+    CREATE TABLE INVITATIONNODES(INVITATIONID text(50) not null, RECIPIENTNODEID text(50) not null, DATECREATED text(25) not null, constraint PK_INVITATIONNODES primary key (INVITATIONID, RECIPIENTNODEID));
+    CREATE TABLE INVITATIONS (INVITATIONID text(50) not null, SENDERNODEID text(50) not null, RECIPIENTEMAILADDR text(200) not null, RECIPIENTUSERID text(50) null, RECIPIENTNODES text null, ISSUEID text(50) not null, ENVELOPE text not null, MESSAGEBLOB blob not null, INVITATIONSTATE int not null, TQUNID text(36) not null, DATECREATED text(25) not null);
+    CREATE TABLE ISSUES (CLASSID int null, SEQNO int not null, LASTMODONNODEID text(50) not null, PREVMODONNODEID text(50) null, ISSUEID text(50) not null, OBJECTID text(50) not null, REVISIONNUM int not null, CONTAINERID text(50) not null, AUTHORID text(50) not null, CREATIONDATE text(25) null, LASTMODIFIEDDATE text(25) null, UPDATENUMBER int null, PREVREVISIONNUM int null, LASTCMD int null, LASTCMDACLVERSION int null, USERDEFINEDFIELD text(300) null, LASTMODIFIEDBYID text(50) null, CONTAINERNAME text(300) null, CONTAINERACLSETTINGS text null, ISINITIALIZED text(1) null, BLINDINVITES text null, ISSYSTEMISSUE text(1) not null, ISSUETYPE int not null, ACTIVITYTYPEID text(50) null, ISINCOMPLETE text(1) not null, constraint PK_ISSUES primary key (ISSUEID, OBJECTID));
+    CREATE TABLE ISSUESETTINGS (CLASSID int null, SEQNO int not null, LASTMODONNODEID text(50) not null, PREVMODONNODEID text(50) null, ISSUEID text(50) not null, OBJECTID text(50) not null, REVISIONNUM int not null, CONTAINERID text(50) not null, AUTHORID text(50) not null, CREATIONDATE text(25) null, LASTMODIFIEDDATE text(25) null, UPDATENUMBER int null, PREVREVISIONNUM int null, LASTCMD int null, LASTCMDACLVERSION int null, USERDEFINEDFIELD text(300) null, LASTMODIFIEDBYID text(50) null, ISSUENAME text(300) not null, ISSUEACLSETTINGS text not null, ISSUEDUEDATE text(25) null, ISSUEPRIORITY int null, ISSUESTATUS int null, DESCRIPTION text null, PROJECTID text(100) null, PROJECTNAME text null, PROJECTNAMEISCUSTOM text(1) null, ISSYSTEMISSUE text(1) not null, ACTIONITEMREVNUM int not null, constraint PK_ISSUESETTINGS primary key (ISSUEID, OBJECTID));
+    CREATE TABLE KMTPMSG (MSGID integer not null, SENDERID text(50) null, RECIPIENTIDLIST text not null, ISSUEID text(50) null, MESSAGETYPE int not null, ENVELOPE text null, MESSAGEBLOB blob not null, RECEIVEDDATE text(25) not null, constraint PK_KMTPMSG primary key (MSGID));
+    CREATE TABLE KMTPNODEQ(NODEID text(50) not null, MSGID int not null, RECEIVEDDATE text(25) not null, SENDCOUNT int not null);
+    CREATE TABLE KMTPQ(MSGID integer not null, SENDERID text(50) null, RECIPIENTIDLIST text not null, ISSUEID text(50) null, MESSAGETYPE int not null, ENVELOPE text null, MESSAGEBLOB blob not null, constraint PK_KMTPQ primary key (MSGID));
+    CREATE TABLE LOGENTRIES(CLASSID int null, SEQNO int not null, LASTMODONNODEID text(50) not null, PREVMODONNODEID text(50) null, ISSUEID text(50) not null, OBJECTID text(50) not null, REVISIONNUM int not null, CONTAINERID text(50) not null, AUTHORID text(50) not null, CREATIONDATE text(25) null, LASTMODIFIEDDATE text(25) null, UPDATENUMBER int null, PREVREVISIONNUM int null, LASTCMD int null, LASTCMDACLVERSION int null, USERDEFINEDFIELD text(300) null, LASTMODIFIEDBYID text(50) null, PARENTENTITYID text(50) null, BODY text null, BODYCONTENTTYPE text(100) null, ISOBSOLETE text(1) null, ACTIONTYPE int not null, ASSOCIATEDOBJECTIDS text null, OLDENTITIES text null, NEWENTITIES text null, OTHERENTITIES text null, constraint PK_LOGENTRIES primary key (ISSUEID, OBJECTID));
+    CREATE TABLE LSBI(TQUNID text(36) not null, ISSUEID text(50) not null, TABLEITEMID text(50) null, TABLENODEID text(50) null, TABLECMD int null, TABLECONTAINERID text(50) null, TABLESEQNO int null, DIRTYCONTENT text null, STUBBED text(1) null, ENTITYSTUBDATA text null, UPDATENUMBER int not null, constraint PK_LSBI primary key (TQUNID));
+    CREATE TABLE LSBN(TQUNID text(36) not null, ISSUEID text(50) not null, NODEID text(50) not null, STORESEQNO int not null, SYNCSEQNO int not null, LASTMSGDATE text(25) null, constraint PK_LSBN primary key (TQUNID));
+    CREATE TABLE MMQ(TQUNID text(36) not null, ISSUEID text(50) not null, TABLEREQUESTNODE text(50) null, MMQENTRYINDEX text(60) null, DIRECTION int null, NODEID text(50) null, TABLEFIRSTSEQNO int null, TABLELASTSEQNO int null, NEXTRESENDTIMEOUT text(25) null, TABLETIMEOUTMULTIPLIER int null, constraint PK_MMQ primary key (TQUNID));
+    CREATE TABLE NODEREG(NODEID text(50) not null, USERID text(50) null, CREATETIME text(25) not null, TQUNID text(36) not null);
+    CREATE TABLE NODES (NODEID text(50) not null, USERID text(50) null, NODESTATE int not null, NODECERT text null, KUBIVERSION int not null, KUBIBUILD text(30) not null, TQUNID text(36) not null, LASTBINDDATE text(25) null, LASTUNBINDDATE text(25) null, LASTBINDIP text(15) null, NUMBINDS int not null, NUMSENDS int not null, NUMPOLLS int not null, NUMRECVS int not null);
+    CREATE TABLE PARTICIPANTNODES(ISSUEID text(50) not null, OBJECTID text(50) not null, NODEID text(50) not null, USERID text(50) null, NODESTATE int not null, NODECERT text null, KUBIVERSION int not null, KUBIBUILD text(30) not null, TQUNID text(36) not null);
+    CREATE TABLE PARTICIPANTS(CLASSID int null, SEQNO int not null, LASTMODONNODEID text(50) not null, PREVMODONNODEID text(50) null, ISSUEID text(50) not null, OBJECTID text(50) not null, REVISIONNUM int not null, CONTAINERID text(50) not null, AUTHORID text(50) not null, CREATIONDATE text(25) null, LASTMODIFIEDDATE text(25) null, UPDATENUMBER int null, PREVREVISIONNUM int null, LASTCMD int null, LASTCMDACLVERSION int null, USERDEFINEDFIELD text(300) null, LASTMODIFIEDBYID text(50) null, PARTICIPANTSTATE int not null, PARTICIPANTROLE int not null, PARTICIPANTTEAM int not null, ISREQUIREDMEMBER text(1) null, USERID text(50) null, ISAGENT text(1) null, NAME text(150) not null, EMAILADDRESS text(200) not null, ISEMAILONLY text(1) not null, INVITATION text null, ACCEPTRESENDCOUNT int null, ACCEPTRESENDTIMEOUT text(25) null, ACCEPTLASTSENTTONODEID text(50) null, constraint PK_PARTICIPANTS primary key (ISSUEID, OBJECTID));
+    CREATE TABLE PARTICIPANTSETTINGS(CLASSID int null, SEQNO int not null, LASTMODONNODEID text(50) not null, PREVMODONNODEID text(50) null, ISSUEID text(50) not null, OBJECTID text(50) not null, REVISIONNUM int not null, CONTAINERID text(50) not null, AUTHORID text(50) not null, CREATIONDATE text(25) null, LASTMODIFIEDDATE text(25) null, UPDATENUMBER int null, PREVREVISIONNUM int null, LASTCMD int null, LASTCMDACLVERSION int null, USERDEFINEDFIELD text(300) null, LASTMODIFIEDBYID text(50) null, PARTICIPANTID text(50) not null, TASKPIMSYNC text(1) null, MOBILESUPPORT text(1) null, NOTIFYBYEMAIL text(1) null, MARKEDCRITICAL text(1) null, constraint PK_PARTICIPANTSETTINGS primary key (ISSUEID, OBJECTID));
+    CREATE TABLE PARTITIONS(PARTITIONID text(50) not null, NAME text(100) not null, LDAPDN text(300) not null, SERVERNODEID text(50) not null, TQUNID text(36) not null);
+    CREATE TABLE PROJECTS(CLASSID int null, SEQNO int not null, LASTMODONNODEID text(50) not null, PREVMODONNODEID text(50) null, ISSUEID text(50) not null, OBJECTID text(50) not null, REVISIONNUM int not null, CONTAINERID text(50) not null, AUTHORID text(50) not null, CREATIONDATE text(25) null, LASTMODIFIEDDATE text(25) null, UPDATENUMBER int null, PREVREVISIONNUM int null, LASTCMD int null, LASTCMDACLVERSION int null, USERDEFINEDFIELD text(300) null, LASTMODIFIEDBYID text(50) null, NAME text(100) not null, ID text(100) null, constraint PK_PROJECTS primary key (ISSUEID, OBJECTID));
+    CREATE TABLE TASKCOMPLETIONS(CLASSID int null, SEQNO int not null, LASTMODONNODEID text(50) not null, PREVMODONNODEID text(50) null, ISSUEID text(50) not null, OBJECTID text(50) not null, REVISIONNUM int not null, CONTAINERID text(50) not null, AUTHORID text(50) not null, CREATIONDATE text(25) null, LASTMODIFIEDDATE text(25) null, UPDATENUMBER int null, PREVREVISIONNUM int null, LASTCMD int null, LASTCMDACLVERSION int null, USERDEFINEDFIELD text(300) null, LASTMODIFIEDBYID text(50) null, PARENTENTITYID text(50) null, BODY text null, BODYCONTENTTYPE text(100) null, ISOBSOLETE text(1) null, TASKID text(50) not null, DISPOSITION int not null, STATUSID text(50) not null, SHORTNAME text(30) not null, LONGNAME text(200) not null, constraint PK_TASKCOMPLETIONS primary key (ISSUEID, OBJECTID));
+    CREATE TABLE TASKS(CLASSID int null, SEQNO int not null, LASTMODONNODEID text(50) not null, PREVMODONNODEID text(50) null, ISSUEID text(50) not null, OBJECTID text(50) not null, REVISIONNUM int not null, CONTAINERID text(50) not null, AUTHORID text(50) not null, CREATIONDATE text(25) null, LASTMODIFIEDDATE text(25) null, UPDATENUMBER int null, PREVREVISIONNUM int null, LASTCMD int null, LASTCMDACLVERSION int null, USERDEFINEDFIELD text(300) null, LASTMODIFIEDBYID text(50) null, PARENTENTITYID text(50) null, BODY text null, BODYCONTENTTYPE text(100) null, ISOBSOLETE text(1) null, DUETIME text(25) null, ASSIGNEDTO text(50) not null, TARGETOBJECTIDS text null, RESPONSEID text(50) not null, TYPEID text(50) not null, LABEL text(200) not null, INSTRUCTIONS text not null, ALLOWEDSTATUSES text not null, ISSERIALREVIEW text(1) null, DAYSTOREVIEW int null, REVIEWERIDS text(500) null, REVIEWTYPE int null, REVIEWGROUP text(300) null, constraint PK_TASKS primary key (ISSUEID, OBJECTID));
+    CREATE TABLE USERS (USERID text(50) not null, USERSID text(100) not null, ENTERPRISEUSER text(1) not null, USEREMAILADDRESS text(200) null, EMAILVALIDATED text(1) null, VALIDATIONCOOKIE text(50) null, CREATETIME text(25) not null, TQUNID text(36) not null, PARTITIONID text(50) null);
+    CREATE VIEW CRITICALISSUES as 
+    
+   
+   		select
+    			USERID, ISSUEID, ISSUENAME, min(DATE1) DATE1
+    			from (
+    			select p.USERID USERID, p.ISSUEID ISSUEID, iset.ISSUENAME ISSUENAME, t.DUETIME DATE1
+    				from PARTICIPANTS p
+    				join TASKS t on t.ASSIGNEDTO = p.OBJECTID
+    				join TASKCOMPLETIONS tc on tc.TASKID = t.OBJECTID
+    				join ISSUESETTINGS iset on iset.ISSUEID = p.ISSUEID
+    				where (t.ISOBSOLETE = 'n' or t.ISOBSOLETE is null)
+    				and tc.DISPOSITION = 1
+    				and iset.ISSUESTATUS = 1
+    			union
+    			select p.USERID USERID, p.ISSUEID ISSUEID, iset.ISSUENAME ISSUENAME, iset.ISSUEDUEDATE DATE1
+    				from PARTICIPANTS p
+    				join PARTICIPANTSETTINGS ps on ps.PARTICIPANTID = p.OBJECTID
+    				join ISSUESETTINGS iset on iset.ISSUEID = p.ISSUEID
+    				where ps.MARKEDCRITICAL = 'y'
+    				and iset.ISSUESTATUS = 1
+    			) as CRITICALDATA
+    			group by USERID, ISSUEID, ISSUENAME;
+    CREATE VIEW CURRENTFILES as 
+    
+   
+   		select
+    			d.ISSUEID as ISSUEID,
+    			d.REFERENCEDOCUMENTID as OBJECTID,
+    			f.VISIBLENAME as VISIBLENAME
+    			from
+    				DOCREFERENCES d
+    				join FILES f on f.OBJECTID = d.REFERENCEDOCUMENTID;
+    CREATE VIEW ISSUEDATA as 
+    
+   
+   		select
+    			ISSUES.OBJECTID as ISSUEID,
+    			ISSUES.CREATIONDATE as CREATIONDATE,
+    			ISSUES.AUTHORID as AUTHORID,
+    			ISSUES.LASTMODIFIEDDATE as LASTMODIFIEDDATE,
+    			ISSUES.LASTMODIFIEDBYID as LASTMODIFIEDBYID,
+    			ISSUESETTINGS.ISSUENAME as ISSUENAME,
+    			ISSUES.ISINITIALIZED as ISINITIALIZED,
+    			ISSUES.ISSYSTEMISSUE as ISSYSTEMISSUE,
+    			ISSUES.ISSUETYPE as ISSUETYPE,
+    			ISSUES.ISINCOMPLETE as ISINCOMPLETE,
+    			ISSUESETTINGS.REVISIONNUM as ISSUESETTINGS_REVISIONNUM,
+    			ISSUESETTINGS.LASTMODIFIEDDATE as ISSUESETTINGS_LASTMODIFIEDDATE,
+    			ISSUESETTINGS.LASTMODIFIEDBYID as ISSUESETTINGS_LASTMODIFIEDBYID,
+    			ISSUESETTINGS.ISSUEDUEDATE as ISSUEDUEDATE,
+    			ISSUESETTINGS.ISSUEPRIORITY as ISSUEPRIORITY,
+    			ISSUESETTINGS.ISSUESTATUS as ISSUESTATUS,
+    			ISSUESETTINGS.DESCRIPTION as DESCRIPTION,
+    			ISSUESETTINGS.PROJECTID as PROJECTID,
+    			ISSUESETTINGS.PROJECTNAME as PROJECTNAME,
+    			ISSUESETTINGS.PROJECTNAMEISCUSTOM as PROJECTNAMEISCUSTOM,
+    			ENTERPRISEDATA.REVISIONNUM as ENTERPRISEDATA_REVISIONNUM,
+    			ENTERPRISEDATA.CREATIONDATE as ENTERPRISEDATA_CREATIONDATE,
+    			ENTERPRISEDATA.AUTHORID as ENTERPRISEDATA_AUTHORID,
+    			ENTERPRISEDATA.LASTMODIFIEDDATE as ENTERPRISEDATA_LASTMODIFIEDDATE,
+    			ENTERPRISEDATA.LASTMODIFIEDBYID as ENTERPRISEDATA_LASTMODIFIEDBYID,
+    			ENTERPRISEDATA.DATE1 as DATE1,
+    			ENTERPRISEDATA.DATE2 as DATE2,
+    			ENTERPRISEDATA.DATE3 as DATE3,
+    			ENTERPRISEDATA.DATE4 as DATE4,
+    			ENTERPRISEDATA.DATE5 as DATE5,
+    			ENTERPRISEDATA.DATE6 as DATE6,
+    			ENTERPRISEDATA.DATE7 as DATE7,
+    			ENTERPRISEDATA.DATE8 as DATE8,
+    			ENTERPRISEDATA.DATE9 as DATE9,
+    			ENTERPRISEDATA.DATE10 as DATE10,
+    			ENTERPRISEDATA.VALUE1 as VALUE1,
+    			ENTERPRISEDATA.VALUE2 as VALUE2,
+    			ENTERPRISEDATA.VALUE3 as VALUE3,
+    			ENTERPRISEDATA.VALUE4 as VALUE4,
+    			ENTERPRISEDATA.VALUE5 as VALUE5,
+    			ENTERPRISEDATA.VALUE6 as VALUE6,
+    			ENTERPRISEDATA.VALUE7 as VALUE7,
+    			ENTERPRISEDATA.VALUE8 as VALUE8,
+    			ENTERPRISEDATA.VALUE9 as VALUE9,
+    			ENTERPRISEDATA.VALUE10 as VALUE10,
+    			ENTERPRISEDATA.VALUE11 as VALUE11,
+    			ENTERPRISEDATA.VALUE12 as VALUE12,
+    			ENTERPRISEDATA.VALUE13 as VALUE13,
+    			ENTERPRISEDATA.VALUE14 as VALUE14,
+    			ENTERPRISEDATA.VALUE15 as VALUE15,
+    			ENTERPRISEDATA.VALUE16 as VALUE16,
+    			ENTERPRISEDATA.VALUE17 as VALUE17,
+    			ENTERPRISEDATA.VALUE18 as VALUE18,
+    			ENTERPRISEDATA.VALUE19 as VALUE19,
+    			ENTERPRISEDATA.VALUE20 as VALUE20,
+    			ENTERPRISEDATA.STRING1 as STRING1,
+    			ENTERPRISEDATA.STRING2 as STRING2,
+    			ENTERPRISEDATA.STRING3 as STRING3,
+    			ENTERPRISEDATA.STRING4 as STRING4,
+    			ENTERPRISEDATA.STRING5 as STRING5,
+    			ENTERPRISEDATA.STRING6 as STRING6,
+    			ENTERPRISEDATA.STRING7 as STRING7,
+    			ENTERPRISEDATA.STRING8 as STRING8,
+    			ENTERPRISEDATA.STRING9 as STRING9,
+    			ENTERPRISEDATA.STRING10 as STRING10,
+    			ENTERPRISEDATA.LONGSTRING1 as LONGSTRING1,
+    			ENTERPRISEDATA.LONGSTRING2 as LONGSTRING2,
+    			ENTERPRISEDATA.LONGSTRING3 as LONGSTRING3,
+    			ENTERPRISEDATA.LONGSTRING4 as LONGSTRING4,
+    			ENTERPRISEDATA.LONGSTRING5 as LONGSTRING5,
+    			ENTERPRISEDATA.LONGSTRING6 as LONGSTRING6,
+    			ENTERPRISEDATA.LONGSTRING7 as LONGSTRING7,
+    			ENTERPRISEDATA.LONGSTRING8 as LONGSTRING8,
+    			ENTERPRISEDATA.LONGSTRING9 as LONGSTRING9,
+    			ENTERPRISEDATA.LONGSTRING10 as LONGSTRING10
+    		from
+    			ISSUES 
+    			join ISSUESETTINGS on ISSUES.OBJECTID = ISSUESETTINGS.ISSUEID
+    			left outer join ENTERPRISEDATA on ISSUES.OBJECTID = ENTERPRISEDATA.ISSUEID;
+    CREATE VIEW ITEMS as 
+    
+   select 'FILES' as TABLENAME, CLASSID, SEQNO, LASTMODONNODEID, PREVMODONNODEID, ISSUEID, OBJECTID, REVISIONNUM, CONTAINERID, AUTHORID, CREATIONDATE, LASTMODIFIEDDATE, UPDATENUMBER, PREVREVISIONNUM, LASTCMD, LASTCMDACLVERSION, USERDEFINEDFIELD, LASTMODIFIEDBYID, PARENTENTITYID, BODY, BODYCONTENTTYPE, ISOBSOLETE, FILENAME, VISIBLENAME, VERSIONSTRING, DOCUMENTHASH, ISFINAL, DOCREFERENCEID, NULL as ACTIONTYPE, NULL as ASSOCIATEDOBJECTIDS, NULL as OLDENTITIES, NULL as NEWENTITIES, NULL as OTHERENTITIES, NULL as TQUNID, NULL as TABLEITEMID, NULL as TABLENODEID, NULL as TABLECMD, NULL as TABLECONTAINERID, NULL as TABLESEQNO, NULL as DIRTYCONTENT, NULL as STUBBED, NULL as ENTITYSTUBDATA, NULL as PARTICIPANTSTATE, NULL as PARTICIPANTROLE, NULL as PARTICIPANTTEAM, NULL as ISREQUIREDMEMBER, NULL as USERID, NULL as ISAGENT, NULL as NAME, NULL as EMAILADDRESS, NULL as ISEMAILONLY, NULL as INVITATION, NULL as ACCEPTRESENDCOUNT, NULL as ACCEPTRESENDTIMEOUT, NULL as ACCEPTLASTSENTTONODEID, NULL as TASKID, NULL as DISPOSITION, NULL as STATUSID, NULL as SHORTNAME, NULL as LONGNAME, NULL as DUETIME, NULL as ASSIGNEDTO, NULL as TARGETOBJECTIDS, NULL as RESPONSEID, NULL as TYPEID, NULL as LABEL, NULL as INSTRUCTIONS, NULL as ALLOWEDSTATUSES, NULL as ISSERIALREVIEW, NULL as DAYSTOREVIEW, NULL as REVIEWERIDS, NULL as REVIEWTYPE, NULL as REVIEWGROUP from FILES
+    union all
+    select 'LOGENTRIES' as TABLENAME, CLASSID, SEQNO, LASTMODONNODEID, PREVMODONNODEID, ISSUEID, OBJECTID, REVISIONNUM, CONTAINERID, AUTHORID, CREATIONDATE, LASTMODIFIEDDATE, UPDATENUMBER, PREVREVISIONNUM, LASTCMD, LASTCMDACLVERSION, USERDEFINEDFIELD, LASTMODIFIEDBYID, PARENTENTITYID, BODY, BODYCONTENTTYPE, ISOBSOLETE, NULL as FILENAME, NULL as VISIBLENAME, NULL as VERSIONSTRING, NULL as DOCUMENTHASH, NULL as ISFINAL, NULL as DOCREFERENCEID, ACTIONTYPE, ASSOCIATEDOBJECTIDS, OLDENTITIES, NEWENTITIES, OTHERENTITIES, NULL as TQUNID, NULL as TABLEITEMID, NULL as TABLENODEID, NULL as TABLECMD, NULL as TABLECONTAINERID, NULL as TABLESEQNO, NULL as DIRTYCONTENT, NULL as STUBBED, NULL as ENTITYSTUBDATA, NULL as PARTICIPANTSTATE, NULL as PARTICIPANTROLE, NULL as PARTICIPANTTEAM, NULL as ISREQUIREDMEMBER, NULL as USERID, NULL as ISAGENT, NULL as NAME, NULL as EMAILADDRESS, NULL as ISEMAILONLY, NULL as INVITATION, NULL as ACCEPTRESENDCOUNT, NULL as ACCEPTRESENDTIMEOUT, NULL as ACCEPTLASTSENTTONODEID, NULL as TASKID, NULL as DISPOSITION, NULL as STATUSID, NULL as SHORTNAME, NULL as LONGNAME, NULL as DUETIME, NULL as ASSIGNEDTO, NULL as TARGETOBJECTIDS, NULL as RESPONSEID, NULL as TYPEID, NULL as LABEL, NULL as INSTRUCTIONS, NULL as ALLOWEDSTATUSES, NULL as ISSERIALREVIEW, NULL as DAYSTOREVIEW, NULL as REVIEWERIDS, NULL as REVIEWTYPE, NULL as REVIEWGROUP from LOGENTRIES
+    union all
+    select 'LSBI' as TABLENAME, NULL as CLASSID, NULL as SEQNO, NULL as LASTMODONNODEID, NULL as PREVMODONNODEID, ISSUEID, NULL as OBJECTID, NULL as REVISIONNUM, NULL as CONTAINERID, NULL as AUTHORID, NULL as CREATIONDATE, NULL as LASTMODIFIEDDATE, UPDATENUMBER, NULL as PREVREVISIONNUM, NULL as LASTCMD, NULL as LASTCMDACLVERSION, NULL as USERDEFINEDFIELD, NULL as LASTMODIFIEDBYID, NULL as PARENTENTITYID, NULL as BODY, NULL as BODYCONTENTTYPE, NULL as ISOBSOLETE, NULL as FILENAME, NULL as VISIBLENAME, NULL as VERSIONSTRING, NULL as DOCUMENTHASH, NULL as ISFINAL, NULL as DOCREFERENCEID, NULL as ACTIONTYPE, NULL as ASSOCIATEDOBJECTIDS, NULL as OLDENTITIES, NULL as NEWENTITIES, NULL as OTHERENTITIES, TQUNID, TABLEITEMID, TABLENODEID, TABLECMD, TABLECONTAINERID, TABLESEQNO, DIRTYCONTENT, STUBBED, ENTITYSTUBDATA, NULL as PARTICIPANTSTATE, NULL as PARTICIPANTROLE, NULL as PARTICIPANTTEAM, NULL as ISREQUIREDMEMBER, NULL as USERID, NULL as ISAGENT, NULL as NAME, NULL as EMAILADDRESS, NULL as ISEMAILONLY, NULL as INVITATION, NULL as ACCEPTRESENDCOUNT, NULL as ACCEPTRESENDTIMEOUT, NULL as ACCEPTLASTSENTTONODEID, NULL as TASKID, NULL as DISPOSITION, NULL as STATUSID, NULL as SHORTNAME, NULL as LONGNAME, NULL as DUETIME, NULL as ASSIGNEDTO, NULL as TARGETOBJECTIDS, NULL as RESPONSEID, NULL as TYPEID, NULL as LABEL, NULL as INSTRUCTIONS, NULL as ALLOWEDSTATUSES, NULL as ISSERIALREVIEW, NULL as DAYSTOREVIEW, NULL as REVIEWERIDS, NULL as REVIEWTYPE, NULL as REVIEWGROUP from LSBI where TABLECMD=3
+    union all
+    select 'PARTICIPANTS' as TABLENAME, CLASSID, SEQNO, LASTMODONNODEID, PREVMODONNODEID, ISSUEID, OBJECTID, REVISIONNUM, CONTAINERID, AUTHORID, CREATIONDATE, LASTMODIFIEDDATE, UPDATENUMBER, PREVREVISIONNUM, LASTCMD, LASTCMDACLVERSION, USERDEFINEDFIELD, LASTMODIFIEDBYID, NULL as PARENTENTITYID, NULL as BODY, NULL as BODYCONTENTTYPE, NULL as ISOBSOLETE, NULL as FILENAME, NULL as VISIBLENAME, NULL as VERSIONSTRING, NULL as DOCUMENTHASH, NULL as ISFINAL, NULL as DOCREFERENCEID, NULL as ACTIONTYPE, NULL as ASSOCIATEDOBJECTIDS, NULL as OLDENTITIES, NULL as NEWENTITIES, NULL as OTHERENTITIES, NULL as TQUNID, NULL as TABLEITEMID, NULL as TABLENODEID, NULL as TABLECMD, NULL as TABLECONTAINERID, NULL as TABLESEQNO, NULL as DIRTYCONTENT, NULL as STUBBED, NULL as ENTITYSTUBDATA, PARTICIPANTSTATE, PARTICIPANTROLE, PARTICIPANTTEAM, ISREQUIREDMEMBER, USERID, ISAGENT, NAME, EMAILADDRESS, ISEMAILONLY, INVITATION, ACCEPTRESENDCOUNT, ACCEPTRESENDTIMEOUT, ACCEPTLASTSENTTONODEID, NULL as TASKID, NULL as DISPOSITION, NULL as STATUSID, NULL as SHORTNAME, NULL as LONGNAME, NULL as DUETIME, NULL as ASSIGNEDTO, NULL as TARGETOBJECTIDS, NULL as RESPONSEID, NULL as TYPEID, NULL as LABEL, NULL as INSTRUCTIONS, NULL as ALLOWEDSTATUSES, NULL as ISSERIALREVIEW, NULL as DAYSTOREVIEW, NULL as REVIEWERIDS, NULL as REVIEWTYPE, NULL as REVIEWGROUP from PARTICIPANTS
+    union all
+    select 'TASKCOMPLETIONS' as TABLENAME, CLASSID, SEQNO, LASTMODONNODEID, PREVMODONNODEID, ISSUEID, OBJECTID, REVISIONNUM, CONTAINERID, AUTHORID, CREATIONDATE, LASTMODIFIEDDATE, UPDATENUMBER, PREVREVISIONNUM, LASTCMD, LASTCMDACLVERSION, USERDEFINEDFIELD, LASTMODIFIEDBYID, PARENTENTITYID, BODY, BODYCONTENTTYPE, ISOBSOLETE, NULL as FILENAME, NULL as VISIBLENAME, NULL as VERSIONSTRING, NULL as DOCUMENTHASH, NULL as ISFINAL, NULL as DOCREFERENCEID, NULL as ACTIONTYPE, NULL as ASSOCIATEDOBJECTIDS, NULL as OLDENTITIES, NULL as NEWENTITIES, NULL as OTHERENTITIES, NULL as TQUNID, NULL as TABLEITEMID, NULL as TABLENODEID, NULL as TABLECMD, NULL as TABLECONTAINERID, NULL as TABLESEQNO, NULL as DIRTYCONTENT, NULL as STUBBED, NULL as ENTITYSTUBDATA, NULL as PARTICIPANTSTATE, NULL as PARTICIPANTROLE, NULL as PARTICIPANTTEAM, NULL as ISREQUIREDMEMBER, NULL as USERID, NULL as ISAGENT, NULL as NAME, NULL as EMAILADDRESS, NULL as ISEMAILONLY, NULL as INVITATION, NULL as ACCEPTRESENDCOUNT, NULL as ACCEPTRESENDTIMEOUT, NULL as ACCEPTLASTSENTTONODEID, TASKID, DISPOSITION, STATUSID, SHORTNAME, LONGNAME, NULL as DUETIME, NULL as ASSIGNEDTO, NULL as TARGETOBJECTIDS, NULL as RESPONSEID, NULL as TYPEID, NULL as LABEL, NULL as INSTRUCTIONS, NULL as ALLOWEDSTATUSES, NULL as ISSERIALREVIEW, NULL as DAYSTOREVIEW, NULL as REVIEWERIDS, NULL as REVIEWTYPE, NULL as REVIEWGROUP from TASKCOMPLETIONS
+    union all
+    select 'TASKS' as TABLENAME, CLASSID, SEQNO, LASTMODONNODEID, PREVMODONNODEID, ISSUEID, OBJECTID, REVISIONNUM, CONTAINERID, AUTHORID, CREATIONDATE, LASTMODIFIEDDATE, UPDATENUMBER, PREVREVISIONNUM, LASTCMD, LASTCMDACLVERSION, USERDEFINEDFIELD, LASTMODIFIEDBYID, PARENTENTITYID, BODY, BODYCONTENTTYPE, ISOBSOLETE, NULL as FILENAME, NULL as VISIBLENAME, NULL as VERSIONSTRING, NULL as DOCUMENTHASH, NULL as ISFINAL, NULL as DOCREFERENCEID, NULL as ACTIONTYPE, NULL as ASSOCIATEDOBJECTIDS, NULL as OLDENTITIES, NULL as NEWENTITIES, NULL as OTHERENTITIES, NULL as TQUNID, NULL as TABLEITEMID, NULL as TABLENODEID, NULL as TABLECMD, NULL as TABLECONTAINERID, NULL as TABLESEQNO, NULL as DIRTYCONTENT, NULL as STUBBED, NULL as ENTITYSTUBDATA, NULL as PARTICIPANTSTATE, NULL as PARTICIPANTROLE, NULL as PARTICIPANTTEAM, NULL as ISREQUIREDMEMBER, NULL as USERID, NULL as ISAGENT, NULL as NAME, NULL as EMAILADDRESS, NULL as ISEMAILONLY, NULL as INVITATION, NULL as ACCEPTRESENDCOUNT, NULL as ACCEPTRESENDTIMEOUT, NULL as ACCEPTLASTSENTTONODEID, NULL as TASKID, NULL as DISPOSITION, NULL as STATUSID, NULL as SHORTNAME, NULL as LONGNAME, DUETIME, ASSIGNEDTO, TARGETOBJECTIDS, RESPONSEID, TYPEID, LABEL, INSTRUCTIONS, ALLOWEDSTATUSES, ISSERIALREVIEW, DAYSTOREVIEW, REVIEWERIDS, REVIEWTYPE, REVIEWGROUP from TASKS;
+    CREATE VIEW TASKINFO as 
+    
+   
+   		select
+    			t.ISSUEID as ISSUEID,
+    			t.OBJECTID as OBJECTID,
+    			t.ASSIGNEDTO as ASSIGNEDTO,
+    			t.TARGETOBJECTIDS as TARGETOBJECTIDS,
+    			t.DUETIME as DUETIME,
+    			t.ISOBSOLETE as ISOBSOLETE,
+    			tc.DISPOSITION as DISPOSITION
+    			from
+    				TASKS t
+    				join TASKCOMPLETIONS tc on tc.TASKID = t.OBJECTID;
+    CREATE INDEX DQ_ISSUEID_DEPENDSID on DQ (ISSUEID, DEPENDSID);
+    CREATE INDEX EMAILQ_TIMEQUEUED on EMAILQ (TIMEQUEUED);
+    CREATE INDEX FOLDERS_CONTAINERID_ISSUEID on FOLDERS (CONTAINERID, ISSUEID);
+    CREATE INDEX IMQ_DATETIMEQUEUED on IMQ (DATETIMEQUEUED);
+    CREATE INDEX INVITATIONS_RECIPIENTUSERID_INVITATIONID on INVITATIONS (RECIPIENTUSERID, INVITATIONID);
+    CREATE INDEX INVITATIONS_TQUNID on INVITATIONS (TQUNID);
+    CREATE INDEX ISSUESETTINGS_CONTAINERID on ISSUESETTINGS (CONTAINERID);
+    CREATE INDEX KMTPMSG_RECEIVEDDATE on KMTPMSG (RECEIVEDDATE desc);
+    CREATE INDEX KMTPNODEQ_MSGID on KMTPNODEQ (MSGID);
+    CREATE INDEX KMTPNODEQ_NODEID_MSGID on KMTPNODEQ (NODEID, MSGID);
+    CREATE INDEX KMTPNODEQ_RECEIVEDDATE on KMTPNODEQ (RECEIVEDDATE desc);
+    CREATE INDEX LSBI_ISSUEID_TABLEITEMID on LSBI (ISSUEID, TABLEITEMID);
+    CREATE INDEX LSBN_ISSUEID_NODEID on LSBN (ISSUEID, NODEID);
+    CREATE INDEX MMQ_ISSUEID_MMQENTRYINDEX on MMQ (ISSUEID, MMQENTRYINDEX);
+    CREATE INDEX NODEREG_NODEID_USERID on NODEREG (NODEID, USERID);
+    CREATE INDEX NODEREG_TQUNID on NODEREG (TQUNID);
+    CREATE INDEX NODEREG_USERID_NODEID on NODEREG (USERID, NODEID);
+    CREATE INDEX NODES_NODEID on NODES (NODEID);
+    CREATE INDEX NODES_TQUNID on NODES (TQUNID);
+    CREATE INDEX PARTICIPANTNODES_ISSUEID_OBJECTID_NODEID on PARTICIPANTNODES (ISSUEID, OBJECTID, NODEID);
+    CREATE INDEX PARTICIPANTNODES_TQUNID on PARTICIPANTNODES (TQUNID);
+    CREATE INDEX PARTICIPANTSETTINGS_PARTICIPANTID on PARTICIPANTSETTINGS (PARTICIPANTID);
+    CREATE INDEX PARTITIONS_LDAPDN on PARTITIONS (LDAPDN);
+    CREATE INDEX PARTITIONS_PARTITIONID_SERVERNODEID on PARTITIONS (PARTITIONID, SERVERNODEID);
+    CREATE INDEX PARTITIONS_SERVERNODEID_PARTITIONID on PARTITIONS (SERVERNODEID, PARTITIONID);
+    CREATE INDEX PARTITIONS_TQUNID on PARTITIONS (TQUNID);
+    CREATE INDEX TASKCOMPLETIONS_TASKID on TASKCOMPLETIONS (TASKID);
+    CREATE INDEX TASKS_ASSIGNEDTO on TASKS (ASSIGNEDTO);
+    CREATE INDEX USERS_PARTITIONID_USERID on USERS (PARTITIONID, USERID);
+    CREATE INDEX USERS_TQUNID on USERS (TQUNID);
+    CREATE INDEX USERS_USERID_PARTITIONID on USERS (USERID, PARTITIONID);
+    CREATE INDEX USERS_USERSID_USERID on USERS (USERSID, USERID);
+    COMMIT;
+  }
+} {}
+
+# Given the schema above, the following query was cause an assertion fault
+# do to an uninitialized field in a Select structure.
+#
+do_test tkt1449-1.2 {
+  execsql {
+    select NEWENTITIES from ITEMS where ((ISSUEID = 'x') and (OBJECTID = 'y'))
+  }
+} {}
+
+finish_test
diff --git a/test/tkt1473.test b/test/tkt1473.test
new file mode 100644
index 0000000000000000000000000000000000000000..3950272f0498e772772236d9488864000e334971
--- /dev/null
+++ b/test/tkt1473.test
@@ -0,0 +1,728 @@
+# 2005 September 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that ticket #1473 has been
+# fixed.  
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !compound {
+  finish_test
+  return 
+}
+
+do_test tkt1473-1.1 {
+  execsql {
+    CREATE TABLE t1(a,b);
+    INSERT INTO t1 VALUES(1,2);
+    INSERT INTO t1 VALUES(3,4);
+    SELECT * FROM t1
+  }
+} {1 2 3 4}
+
+do_test tkt1473-1.2 {
+  execsql {
+    SELECT 1 FROM t1 WHERE a=1 UNION ALL SELECT 2 FROM t1 WHERE b=0
+  }
+} {1}
+do_test tkt1473-1.3 {
+  execsql {
+    SELECT 1 FROM t1 WHERE a=1 UNION SELECT 2 FROM t1 WHERE b=0
+  }
+} {1}
+do_test tkt1473-1.4 {
+  execsql {
+    SELECT 1 FROM t1 WHERE a=1 UNION ALL SELECT 2 FROM t1 WHERE b=4
+  }
+} {1 2}
+do_test tkt1473-1.5 {
+  execsql {
+    SELECT 1 FROM t1 WHERE a=1 UNION SELECT 2 FROM t1 WHERE b=4
+  }
+} {1 2}
+do_test tkt1473-1.6 {
+  execsql {
+    SELECT 1 FROM t1 WHERE a=0 UNION ALL SELECT 2 FROM t1 WHERE b=4
+  }
+} {2}
+do_test tkt1473-1.7 {
+  execsql {
+    SELECT 1 FROM t1 WHERE a=0 UNION SELECT 2 FROM t1 WHERE b=4
+  }
+} {2}
+do_test tkt1473-1.8 {
+  execsql {
+    SELECT 1 FROM t1 WHERE a=0 UNION ALL SELECT 2 FROM t1 WHERE b=0
+  }
+} {}
+do_test tkt1473-1.9 {
+  execsql {
+    SELECT 1 FROM t1 WHERE a=0 UNION SELECT 2 FROM t1 WHERE b=0
+  }
+} {}
+
+# Everything from this point on depends on sub-queries. So skip it
+# if sub-queries are not available.
+ifcapable !subquery {
+  finish_test
+  return
+}
+
+do_test tkt1473-2.2 {
+  execsql {
+    SELECT (SELECT 1 FROM t1 WHERE a=1 UNION ALL SELECT 2 FROM t1 WHERE b=0)
+  }
+} {1}
+do_test tkt1473-2.3 {
+  execsql {
+    SELECT (SELECT 1 FROM t1 WHERE a=1 UNION SELECT 2 FROM t1 WHERE b=0)
+  }
+} {1}
+do_test tkt1473-2.4 {
+  execsql {
+    SELECT (SELECT 1 FROM t1 WHERE a=1 UNION ALL SELECT 2 FROM t1 WHERE b=4)
+  }
+} {1}
+do_test tkt1473-2.5 {
+  execsql {
+    SELECT (SELECT 1 FROM t1 WHERE a=1 UNION SELECT 2 FROM t1 WHERE b=4)
+  }
+} {1}
+do_test tkt1473-2.6 {
+  execsql {
+    SELECT (SELECT 1 FROM t1 WHERE a=0 UNION ALL SELECT 2 FROM t1 WHERE b=4)
+  }
+} {2}
+do_test tkt1473-2.7 {
+  execsql {
+    SELECT (SELECT 1 FROM t1 WHERE a=0 UNION SELECT 2 FROM t1 WHERE b=4)
+  }
+} {2}
+do_test tkt1473-2.8 {
+  execsql {
+    SELECT (SELECT 1 FROM t1 WHERE a=0 UNION ALL SELECT 2 FROM t1 WHERE b=0)
+  }
+} {{}}
+do_test tkt1473-2.9 {
+  execsql {
+    SELECT (SELECT 1 FROM t1 WHERE a=0 UNION SELECT 2 FROM t1 WHERE b=0)
+  }
+} {{}}
+
+do_test tkt1473-3.2 {
+  execsql {
+    SELECT EXISTS
+      (SELECT 1 FROM t1 WHERE a=1 UNION ALL SELECT 2 FROM t1 WHERE b=0)
+  }
+} {1}
+do_test tkt1473-3.3 {
+  execsql {
+    SELECT EXISTS
+      (SELECT 1 FROM t1 WHERE a=1 UNION SELECT 2 FROM t1 WHERE b=0)
+  }
+} {1}
+do_test tkt1473-3.4 {
+  execsql {
+    SELECT EXISTS
+      (SELECT 1 FROM t1 WHERE a=1 UNION ALL SELECT 2 FROM t1 WHERE b=4)
+  }
+} {1}
+do_test tkt1473-3.5 {
+  execsql {
+    SELECT EXISTS
+      (SELECT 1 FROM t1 WHERE a=1 UNION SELECT 2 FROM t1 WHERE b=4)
+  }
+} {1}
+do_test tkt1473-3.6 {
+  execsql {
+    SELECT EXISTS
+      (SELECT 1 FROM t1 WHERE a=0 UNION ALL SELECT 2 FROM t1 WHERE b=4)
+  }
+} {1}
+do_test tkt1473-3.7 {
+  execsql {
+    SELECT EXISTS
+      (SELECT 1 FROM t1 WHERE a=0 UNION SELECT 2 FROM t1 WHERE b=4)
+  }
+} {1}
+do_test tkt1473-3.8 {
+  execsql {
+    SELECT EXISTS
+      (SELECT 1 FROM t1 WHERE a=0 UNION ALL SELECT 2 FROM t1 WHERE b=0)
+  }
+} {0}
+do_test tkt1473-3.9 {
+  execsql {
+    SELECT EXISTS
+      (SELECT 1 FROM t1 WHERE a=0 UNION SELECT 2 FROM t1 WHERE b=0)
+  }
+} {0}
+
+do_test tkt1473-4.1 {
+  execsql {
+    CREATE TABLE t2(x,y);
+    INSERT INTO t2 VALUES(1,2);
+    INSERT INTO t2 SELECT x+2, y+2 FROM t2;
+    INSERT INTO t2 SELECT x+4, y+4 FROM t2;
+    INSERT INTO t2 SELECT x+8, y+8 FROM t2;
+    INSERT INTO t2 SELECT x+16, y+16 FROM t2;
+    INSERT INTO t2 SELECT x+32, y+32 FROM t2;
+    INSERT INTO t2 SELECT x+64, y+64 FROM t2;
+    SELECT count(*), sum(x), sum(y) FROM t2;
+  }
+} {64 4096 4160}
+do_test tkt1473-4.2 {
+  execsql {
+    SELECT 1 FROM t2 WHERE x=0
+    UNION ALL
+    SELECT 2 FROM t2 WHERE x=1
+    UNION ALL
+    SELECT 3 FROM t2 WHERE x=2
+    UNION ALL
+    SELECT 4 FROM t2 WHERE x=3
+    UNION ALL
+    SELECT 5 FROM t2 WHERE x=4
+    UNION ALL
+    SELECT 6 FROM t2 WHERE y=0
+    UNION ALL
+    SELECT 7 FROM t2 WHERE y=1
+    UNION ALL
+    SELECT 8 FROM t2 WHERE y=2
+    UNION ALL
+    SELECT 9 FROM t2 WHERE y=3
+    UNION ALL
+    SELECT 10 FROM t2 WHERE y=4
+  }
+} {2 4 8 10}
+do_test tkt1473-4.3 {
+  execsql {
+    SELECT (
+      SELECT 1 FROM t2 WHERE x=0
+      UNION ALL
+      SELECT 2 FROM t2 WHERE x=1
+      UNION ALL
+      SELECT 3 FROM t2 WHERE x=2
+      UNION ALL
+      SELECT 4 FROM t2 WHERE x=3
+      UNION ALL
+      SELECT 5 FROM t2 WHERE x=4
+      UNION ALL
+      SELECT 6 FROM t2 WHERE y=0
+      UNION ALL
+      SELECT 7 FROM t2 WHERE y=1
+      UNION ALL
+      SELECT 8 FROM t2 WHERE y=2
+      UNION ALL
+      SELECT 9 FROM t2 WHERE y=3
+      UNION ALL
+      SELECT 10 FROM t2 WHERE y=4
+    )
+  }
+} {2}
+do_test tkt1473-4.4 {
+  execsql {
+    SELECT (
+      SELECT 1 FROM t2 WHERE x=0
+      UNION ALL
+      SELECT 2 FROM t2 WHERE x=-1
+      UNION ALL
+      SELECT 3 FROM t2 WHERE x=2
+      UNION ALL
+      SELECT 4 FROM t2 WHERE x=3
+      UNION ALL
+      SELECT 5 FROM t2 WHERE x=4
+      UNION ALL
+      SELECT 6 FROM t2 WHERE y=0
+      UNION ALL
+      SELECT 7 FROM t2 WHERE y=1
+      UNION ALL
+      SELECT 8 FROM t2 WHERE y=2
+      UNION ALL
+      SELECT 9 FROM t2 WHERE y=3
+      UNION ALL
+      SELECT 10 FROM t2 WHERE y=4
+    )
+  }
+} {4}
+do_test tkt1473-4.5 {
+  execsql {
+    SELECT (
+      SELECT 1 FROM t2 WHERE x=0
+      UNION ALL
+      SELECT 2 FROM t2 WHERE x=-1
+      UNION ALL
+      SELECT 3 FROM t2 WHERE x=2
+      UNION ALL
+      SELECT 4 FROM t2 WHERE x=-1
+      UNION ALL
+      SELECT 5 FROM t2 WHERE x=4
+      UNION ALL
+      SELECT 6 FROM t2 WHERE y=0
+      UNION ALL
+      SELECT 7 FROM t2 WHERE y=1
+      UNION ALL
+      SELECT 8 FROM t2 WHERE y=2
+      UNION ALL
+      SELECT 9 FROM t2 WHERE y=3
+      UNION ALL
+      SELECT 10 FROM t2 WHERE y=-4
+    )
+  }
+} {8}
+do_test tkt1473-4.6 {
+  execsql {
+    SELECT (
+      SELECT 1 FROM t2 WHERE x=0
+      UNION ALL
+      SELECT 2 FROM t2 WHERE x=-1
+      UNION ALL
+      SELECT 3 FROM t2 WHERE x=2
+      UNION ALL
+      SELECT 4 FROM t2 WHERE x=-2
+      UNION ALL
+      SELECT 5 FROM t2 WHERE x=4
+      UNION ALL
+      SELECT 6 FROM t2 WHERE y=0
+      UNION ALL
+      SELECT 7 FROM t2 WHERE y=1
+      UNION ALL
+      SELECT 8 FROM t2 WHERE y=-3
+      UNION ALL
+      SELECT 9 FROM t2 WHERE y=3
+      UNION ALL
+      SELECT 10 FROM t2 WHERE y=4
+    )
+  }
+} {10}
+do_test tkt1473-4.7 {
+  execsql {
+    SELECT (
+      SELECT 1 FROM t2 WHERE x=0
+      UNION ALL
+      SELECT 2 FROM t2 WHERE x=-1
+      UNION ALL
+      SELECT 3 FROM t2 WHERE x=2
+      UNION ALL
+      SELECT 4 FROM t2 WHERE x=-2
+      UNION ALL
+      SELECT 5 FROM t2 WHERE x=4
+      UNION ALL
+      SELECT 6 FROM t2 WHERE y=0
+      UNION ALL
+      SELECT 7 FROM t2 WHERE y=1
+      UNION ALL
+      SELECT 8 FROM t2 WHERE y=-3
+      UNION ALL
+      SELECT 9 FROM t2 WHERE y=3
+      UNION ALL
+      SELECT 10 FROM t2 WHERE y=-4
+    )
+  }
+} {{}}
+
+do_test tkt1473-5.3 {
+  execsql {
+    SELECT EXISTS (
+      SELECT 1 FROM t2 WHERE x=0
+      UNION ALL
+      SELECT 2 FROM t2 WHERE x=1
+      UNION ALL
+      SELECT 3 FROM t2 WHERE x=2
+      UNION ALL
+      SELECT 4 FROM t2 WHERE x=3
+      UNION ALL
+      SELECT 5 FROM t2 WHERE x=4
+      UNION ALL
+      SELECT 6 FROM t2 WHERE y=0
+      UNION ALL
+      SELECT 7 FROM t2 WHERE y=1
+      UNION ALL
+      SELECT 8 FROM t2 WHERE y=2
+      UNION ALL
+      SELECT 9 FROM t2 WHERE y=3
+      UNION ALL
+      SELECT 10 FROM t2 WHERE y=4
+    )
+  }
+} {1}
+do_test tkt1473-5.4 {
+  execsql {
+    SELECT EXISTS (
+      SELECT 1 FROM t2 WHERE x=0
+      UNION ALL
+      SELECT 2 FROM t2 WHERE x=-1
+      UNION ALL
+      SELECT 3 FROM t2 WHERE x=2
+      UNION ALL
+      SELECT 4 FROM t2 WHERE x=3
+      UNION ALL
+      SELECT 5 FROM t2 WHERE x=4
+      UNION ALL
+      SELECT 6 FROM t2 WHERE y=0
+      UNION ALL
+      SELECT 7 FROM t2 WHERE y=1
+      UNION ALL
+      SELECT 8 FROM t2 WHERE y=2
+      UNION ALL
+      SELECT 9 FROM t2 WHERE y=3
+      UNION ALL
+      SELECT 10 FROM t2 WHERE y=4
+    )
+  }
+} {1}
+
+do_test tkt1473-5.5 {
+  execsql {
+    SELECT EXISTS (
+      SELECT 1 FROM t2 WHERE x=0
+      UNION ALL
+      SELECT 2 FROM t2 WHERE x=-1
+      UNION ALL
+      SELECT 3 FROM t2 WHERE x=2
+      UNION ALL
+      SELECT 4 FROM t2 WHERE x=-1
+      UNION ALL
+      SELECT 5 FROM t2 WHERE x=4
+      UNION ALL
+      SELECT 6 FROM t2 WHERE y=0
+      UNION ALL
+      SELECT 7 FROM t2 WHERE y=1
+      UNION ALL
+      SELECT 8 FROM t2 WHERE y=2
+      UNION ALL
+      SELECT 9 FROM t2 WHERE y=3
+      UNION ALL
+      SELECT 10 FROM t2 WHERE y=-4
+    )
+  }
+} {1}
+do_test tkt1473-5.6 {
+  execsql {
+    SELECT EXISTS (
+      SELECT 1 FROM t2 WHERE x=0
+      UNION ALL
+      SELECT 2 FROM t2 WHERE x=-1
+      UNION ALL
+      SELECT 3 FROM t2 WHERE x=2
+      UNION ALL
+      SELECT 4 FROM t2 WHERE x=-2
+      UNION ALL
+      SELECT 5 FROM t2 WHERE x=4
+      UNION ALL
+      SELECT 6 FROM t2 WHERE y=0
+      UNION ALL
+      SELECT 7 FROM t2 WHERE y=1
+      UNION ALL
+      SELECT 8 FROM t2 WHERE y=-3
+      UNION ALL
+      SELECT 9 FROM t2 WHERE y=3
+      UNION ALL
+      SELECT 10 FROM t2 WHERE y=4
+    )
+  }
+} {1}
+do_test tkt1473-5.7 {
+  execsql {
+    SELECT EXISTS (
+      SELECT 1 FROM t2 WHERE x=0
+      UNION ALL
+      SELECT 2 FROM t2 WHERE x=-1
+      UNION ALL
+      SELECT 3 FROM t2 WHERE x=2
+      UNION ALL
+      SELECT 4 FROM t2 WHERE x=-2
+      UNION ALL
+      SELECT 5 FROM t2 WHERE x=4
+      UNION ALL
+      SELECT 6 FROM t2 WHERE y=0
+      UNION ALL
+      SELECT 7 FROM t2 WHERE y=1
+      UNION ALL
+      SELECT 8 FROM t2 WHERE y=-3
+      UNION ALL
+      SELECT 9 FROM t2 WHERE y=3
+      UNION ALL
+      SELECT 10 FROM t2 WHERE y=-4
+    )
+  }
+} {0}
+
+do_test tkt1473-6.3 {
+  execsql {
+    SELECT EXISTS (
+      SELECT 1 FROM t2 WHERE x=0
+      UNION
+      SELECT 2 FROM t2 WHERE x=1
+      UNION
+      SELECT 3 FROM t2 WHERE x=2
+      UNION
+      SELECT 4 FROM t2 WHERE x=3
+      UNION
+      SELECT 5 FROM t2 WHERE x=4
+      UNION
+      SELECT 6 FROM t2 WHERE y=0
+      UNION
+      SELECT 7 FROM t2 WHERE y=1
+      UNION
+      SELECT 8 FROM t2 WHERE y=2
+      UNION
+      SELECT 9 FROM t2 WHERE y=3
+      UNION
+      SELECT 10 FROM t2 WHERE y=4
+    )
+  }
+} {1}
+do_test tkt1473-6.4 {
+  execsql {
+    SELECT EXISTS (
+      SELECT 1 FROM t2 WHERE x=0
+      UNION
+      SELECT 2 FROM t2 WHERE x=-1
+      UNION
+      SELECT 3 FROM t2 WHERE x=2
+      UNION
+      SELECT 4 FROM t2 WHERE x=3
+      UNION
+      SELECT 5 FROM t2 WHERE x=4
+      UNION
+      SELECT 6 FROM t2 WHERE y=0
+      UNION
+      SELECT 7 FROM t2 WHERE y=1
+      UNION
+      SELECT 8 FROM t2 WHERE y=2
+      UNION
+      SELECT 9 FROM t2 WHERE y=3
+      UNION
+      SELECT 10 FROM t2 WHERE y=4
+    )
+  }
+} {1}
+
+do_test tkt1473-6.5 {
+  execsql {
+    SELECT EXISTS (
+      SELECT 1 FROM t2 WHERE x=0
+      UNION
+      SELECT 2 FROM t2 WHERE x=-1
+      UNION
+      SELECT 3 FROM t2 WHERE x=2
+      UNION
+      SELECT 4 FROM t2 WHERE x=-1
+      UNION
+      SELECT 5 FROM t2 WHERE x=4
+      UNION
+      SELECT 6 FROM t2 WHERE y=0
+      UNION
+      SELECT 7 FROM t2 WHERE y=1
+      UNION
+      SELECT 8 FROM t2 WHERE y=2
+      UNION
+      SELECT 9 FROM t2 WHERE y=3
+      UNION
+      SELECT 10 FROM t2 WHERE y=-4
+    )
+  }
+} {1}
+do_test tkt1473-6.6 {
+  execsql {
+    SELECT EXISTS (
+      SELECT 1 FROM t2 WHERE x=0
+      UNION
+      SELECT 2 FROM t2 WHERE x=-1
+      UNION
+      SELECT 3 FROM t2 WHERE x=2
+      UNION
+      SELECT 4 FROM t2 WHERE x=-2
+      UNION
+      SELECT 5 FROM t2 WHERE x=4
+      UNION
+      SELECT 6 FROM t2 WHERE y=0
+      UNION
+      SELECT 7 FROM t2 WHERE y=1
+      UNION
+      SELECT 8 FROM t2 WHERE y=-3
+      UNION
+      SELECT 9 FROM t2 WHERE y=3
+      UNION
+      SELECT 10 FROM t2 WHERE y=4
+    )
+  }
+} {1}
+do_test tkt1473-6.7 {
+  execsql {
+    SELECT EXISTS (
+      SELECT 1 FROM t2 WHERE x=0
+      UNION
+      SELECT 2 FROM t2 WHERE x=-1
+      UNION
+      SELECT 3 FROM t2 WHERE x=2
+      UNION
+      SELECT 4 FROM t2 WHERE x=-2
+      UNION
+      SELECT 5 FROM t2 WHERE x=4
+      UNION
+      SELECT 6 FROM t2 WHERE y=0
+      UNION
+      SELECT 7 FROM t2 WHERE y=1
+      UNION
+      SELECT 8 FROM t2 WHERE y=-3
+      UNION
+      SELECT 9 FROM t2 WHERE y=3
+      UNION
+      SELECT 10 FROM t2 WHERE y=-4
+    )
+  }
+} {0}
+do_test tkt1473-6.8 {
+  execsql {
+    SELECT EXISTS (
+      SELECT 1 FROM t2 WHERE x=0
+      UNION
+      SELECT 2 FROM t2 WHERE x=-1
+      UNION
+      SELECT 3 FROM t2 WHERE x=2
+      UNION
+      SELECT 4 FROM t2 WHERE x=-2
+      UNION
+      SELECT 5 FROM t2 WHERE x=4
+      UNION ALL
+      SELECT 6 FROM t2 WHERE y=0
+      UNION
+      SELECT 7 FROM t2 WHERE y=1
+      UNION
+      SELECT 8 FROM t2 WHERE y=-3
+      UNION
+      SELECT 9 FROM t2 WHERE y=3
+      UNION
+      SELECT 10 FROM t2 WHERE y=4
+    )
+  }
+} {1}
+do_test tkt1473-6.9 {
+  execsql {
+    SELECT EXISTS (
+      SELECT 1 FROM t2 WHERE x=0
+      UNION
+      SELECT 2 FROM t2 WHERE x=-1
+      UNION
+      SELECT 3 FROM t2 WHERE x=2
+      UNION
+      SELECT 4 FROM t2 WHERE x=-2
+      UNION
+      SELECT 5 FROM t2 WHERE x=4
+      UNION ALL
+      SELECT 6 FROM t2 WHERE y=0
+      UNION
+      SELECT 7 FROM t2 WHERE y=1
+      UNION
+      SELECT 8 FROM t2 WHERE y=-3
+      UNION
+      SELECT 9 FROM t2 WHERE y=3
+      UNION
+      SELECT 10 FROM t2 WHERE y=-4
+    )
+  }
+} {0}
+
+do_test tkt1473-7.1 {
+  execsql {
+    SELECT 1 FROM t2 WHERE x=1 EXCEPT SELECT 2 FROM t2 WHERE y=2
+  }
+} {1}
+do_test tkt1473-7.2 {
+  execsql {
+    SELECT (
+      SELECT 1 FROM t2 WHERE x=1 EXCEPT SELECT 2 FROM t2 WHERE y=2
+    )
+  }
+} {1}
+do_test tkt1473-7.3 {
+  execsql {
+    SELECT EXISTS (
+      SELECT 1 FROM t2 WHERE x=1 EXCEPT SELECT 2 FROM t2 WHERE y=2
+    )
+  }
+} {1}
+do_test tkt1473-7.4 {
+  execsql {
+    SELECT (
+      SELECT 1 FROM t2 WHERE x=0 EXCEPT SELECT 2 FROM t2 WHERE y=2
+    )
+  }
+} {{}}
+do_test tkt1473-7.5 {
+  execsql {
+    SELECT EXISTS (
+      SELECT 1 FROM t2 WHERE x=0 EXCEPT SELECT 2 FROM t2 WHERE y=2
+    )
+  }
+} {0}
+
+do_test tkt1473-8.1 {
+  execsql {
+    SELECT 1 FROM t2 WHERE x=1 INTERSECT SELECT 2 FROM t2 WHERE y=2
+  }
+} {}
+do_test tkt1473-8.1 {
+  execsql {
+    SELECT 1 FROM t2 WHERE x=1 INTERSECT SELECT 1 FROM t2 WHERE y=2
+  }
+} {1}
+do_test tkt1473-8.3 {
+  execsql {
+    SELECT (
+      SELECT 1 FROM t2 WHERE x=1 INTERSECT SELECT 2 FROM t2 WHERE y=2
+    )
+  }
+} {{}}
+do_test tkt1473-8.4 {
+  execsql {
+    SELECT (
+      SELECT 1 FROM t2 WHERE x=1 INTERSECT SELECT 1 FROM t2 WHERE y=2
+    )
+  }
+} {1}
+do_test tkt1473-8.5 {
+  execsql {
+    SELECT EXISTS (
+      SELECT 1 FROM t2 WHERE x=1 INTERSECT SELECT 2 FROM t2 WHERE y=2
+    )
+  }
+} {0}
+do_test tkt1473-8.6 {
+  execsql {
+    SELECT EXISTS (
+      SELECT 1 FROM t2 WHERE x=1 INTERSECT SELECT 1 FROM t2 WHERE y=2
+    )
+  }
+} {1}
+do_test tkt1473-8.7 {
+  execsql {
+    SELECT (
+      SELECT 1 FROM t2 WHERE x=0 INTERSECT SELECT 1 FROM t2 WHERE y=2
+    )
+  }
+} {{}}
+do_test tkt1473-8.8 {
+  execsql {
+    SELECT EXISTS (
+      SELECT 1 FROM t2 WHERE x=1 INTERSECT SELECT 1 FROM t2 WHERE y=0
+    )
+  }
+} {0}
+
+
+
+
+finish_test
diff --git a/test/tkt1501.test b/test/tkt1501.test
new file mode 100644
index 0000000000000000000000000000000000000000..19ec7f7e8f629439fe0b987ced8fdb4ca8d0d23a
--- /dev/null
+++ b/test/tkt1501.test
@@ -0,0 +1,36 @@
+# 2005 November 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that ticket #1501 is
+# fixed.  
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !compound {
+  finish_test
+  return
+}
+
+do_test tkt1501-1.1 {
+  execsql {
+    CREATE TABLE t1(a,b);
+    INSERT INTO t1 VALUES(1,2);
+    SELECT a, b, 'abc' FROM t1
+      UNION
+      SELECT b, a, 'xyz' FROM t1
+      ORDER BY 2, 3;
+  }
+} {2 1 xyz 1 2 abc}
+
+finish_test
diff --git a/test/tkt1512.test b/test/tkt1512.test
new file mode 100644
index 0000000000000000000000000000000000000000..a2c39dbe48602453a3f61afb399af86420aaf288
--- /dev/null
+++ b/test/tkt1512.test
@@ -0,0 +1,54 @@
+# 2005 September 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that ticket #1512 is
+# fixed.  
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable {!vacuum || !autovacuum} {
+  finish_test
+  return
+}
+if {[db one {PRAGMA auto_vacuum}]} {
+  finish_test
+  return
+}
+
+do_test tkt1512-1.1 {
+  execsql {
+    CREATE TABLE t1(a,b);
+    INSERT INTO t1 VALUES(1,2);
+    INSERT INTO t1 VALUES(3,4);
+    SELECT * FROM t1
+  }
+} {1 2 3 4}
+do_test tkt1512-1.2 {
+  file size test.db
+} {2048}
+do_test tkt1512-1.3 {
+  execsql {
+    DROP TABLE t1;
+  }
+  file size test.db
+} {2048}
+do_test tkt1512-1.4 {
+  execsql {
+    VACUUM;
+  }
+  file size test.db
+} {1024}
+
+
+finish_test
diff --git a/test/tkt1514.test b/test/tkt1514.test
new file mode 100644
index 0000000000000000000000000000000000000000..1dfae1d97a10f4f93d4ebc1b26a070ee138b7360
--- /dev/null
+++ b/test/tkt1514.test
@@ -0,0 +1,27 @@
+# 2005 November 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that ticket #1514 is
+# fixed.  
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt1514-1.1 {
+  catchsql {
+    CREATE TABLE t1(a,b);
+    SELECT a FROM t1 WHERE max(b)<10 GROUP BY a;
+  }
+} {1 {misuse of aggregate: max()}}
+
+finish_test
diff --git a/test/tkt1536.test b/test/tkt1536.test
new file mode 100644
index 0000000000000000000000000000000000000000..46e46192b6108c60b7c5559735813277e617e300
--- /dev/null
+++ b/test/tkt1536.test
@@ -0,0 +1,38 @@
+# 2005 November 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that ticket #1536 is
+# fixed.  
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt1536-1.1 {
+  execsql {
+    CREATE TABLE t1(
+      a INTEGER PRIMARY KEY,
+      b TEXT
+    );
+    INSERT INTO t1 VALUES(1,'01');
+    SELECT typeof(a), typeof(b) FROM t1;
+  }
+} {integer text}
+do_test tkt1536-1.2 {
+  execsql {
+    INSERT INTO t1(b) SELECT b FROM t1;
+    SELECT b FROM t1 WHERE rowid=2;
+  }
+} {01}
+ 
+
+finish_test
diff --git a/test/tkt1537.test b/test/tkt1537.test
new file mode 100644
index 0000000000000000000000000000000000000000..633f91fceef2eee16bc31cab4eff6a839124f807
--- /dev/null
+++ b/test/tkt1537.test
@@ -0,0 +1,122 @@
+# 2005 November 26
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that ticket #1537 is
+# fixed.  
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt1537-1.1 {
+  execsql {
+    CREATE TABLE t1(id, a1, a2);
+    INSERT INTO t1 VALUES(1, NULL, NULL);
+    INSERT INTO t1 VALUES(2, 1, 3);
+    CREATE TABLE t2(id, b);
+    INSERT INTO t2 VALUES(3, 1);
+    INSERT INTO t2 VALUES(4, NULL);
+    SELECT * FROM t1 LEFT JOIN t2 ON a1=b OR a2=+b;
+  }
+} {1 {} {} {} {} 2 1 3 3 1}
+do_test tkt1537-1.2 {
+  execsql {
+    SELECT * FROM t1 LEFT JOIN t2 ON a1=b OR a2=b;
+  }
+} {1 {} {} {} {} 2 1 3 3 1}
+do_test tkt1537-1.3 {
+  execsql {
+    SELECT * FROM t2 LEFT JOIN t1 ON a1=b OR a2=b;
+  }
+} {3 1 2 1 3 4 {} {} {} {}}
+ifcapable subquery {
+  do_test tkt1537-1.4 {
+    execsql {
+      SELECT * FROM t1 LEFT JOIN t2 ON b IN (a1,a2);
+    }
+  } {1 {} {} {} {} 2 1 3 3 1}
+  do_test tkt1537-1.5 {
+    execsql {
+      SELECT * FROM t2 LEFT JOIN t1 ON b IN (a2,a1);
+    }
+  } {3 1 2 1 3 4 {} {} {} {}}
+}
+do_test tkt1537-1.6 {
+  execsql {
+    CREATE INDEX t1a1 ON t1(a1);
+    CREATE INDEX t1a2 ON t1(a2);
+    CREATE INDEX t2b ON t2(b);
+    SELECT * FROM t1 LEFT JOIN t2 ON a1=b OR a2=b;
+  }
+} {1 {} {} {} {} 2 1 3 3 1}
+do_test tkt1537-1.7 {
+  execsql {
+    SELECT * FROM t2 LEFT JOIN t1 ON a1=b OR a2=b;
+  }
+} {3 1 2 1 3 4 {} {} {} {}}
+
+ifcapable subquery {
+  do_test tkt1537-1.8 {
+    execsql {
+      SELECT * FROM t1 LEFT JOIN t2 ON b IN (a1,a2);
+    }
+  } {1 {} {} {} {} 2 1 3 3 1}
+  do_test tkt1537-1.9 {
+    execsql {
+      SELECT * FROM t2 LEFT JOIN t1 ON b IN (a2,a1);
+    }
+  } {3 1 2 1 3 4 {} {} {} {}}
+}
+
+execsql {
+  DROP INDEX t1a1;
+  DROP INDEX t1a2;
+  DROP INDEX t2b;
+}
+
+do_test tkt1537-2.1 {
+  execsql {
+    SELECT * FROM t1 LEFT JOIN t2 ON b BETWEEN a1 AND a2;
+  }
+} {1 {} {} {} {} 2 1 3 3 1}
+do_test tkt1537-2.2 {
+  execsql {
+    CREATE INDEX t2b ON t2(b);
+    SELECT * FROM t1 LEFT JOIN t2 ON b BETWEEN a1 AND a2;
+  }
+} {1 {} {} {} {} 2 1 3 3 1}
+do_test tkt1537-2.3 {
+  execsql {
+    SELECT * FROM t2 LEFT JOIN t1 ON b BETWEEN a1 AND a2;
+  }
+} {3 1 2 1 3 4 {} {} {} {}}
+do_test tkt1537-2.4 {
+  execsql {
+    CREATE INDEX t1a1 ON t1(a1);
+    CREATE INDEX t1a2 ON t1(a2);
+    SELECT * FROM t2 LEFT JOIN t1 ON b BETWEEN a1 AND a2;
+  }
+} {3 1 2 1 3 4 {} {} {} {}}
+
+do_test tkt1537-3.1 {
+  execsql {
+    SELECT * FROM t1 LEFT JOIN t2 ON b GLOB 'abc*' WHERE t1.id=1;
+  }
+} {1 {} {} {} {}}
+do_test tkt1537-3.2 {
+  execsql { 
+    SELECT * FROM t2 LEFT JOIN t1 ON a1 GLOB 'abc*' WHERE t2.id=3;
+  }
+} {3 1 {} {} {}}
+
+
+finish_test
diff --git a/test/tkt1567.test b/test/tkt1567.test
new file mode 100644
index 0000000000000000000000000000000000000000..cb1a6be5062fd963f2a82e4bde4bd36c8a46a53f
--- /dev/null
+++ b/test/tkt1567.test
@@ -0,0 +1,82 @@
+# 2005 December 19 2005
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that ticket #1567 is
+# fixed.  
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt1567-1.1 {
+  execsql {
+    CREATE TABLE t1(a TEXT PRIMARY KEY);
+  }
+  set bigstr abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ
+  for {set i 0} {$i<100} {incr i} {
+    set x [format %5d [expr $i*2]]
+    set sql "INSERT INTO t1 VALUES('$x-$bigstr')"
+    execsql $sql
+  }
+} {}
+integrity_check tkt1567-1.2
+
+do_test tkt1567-1.3 {
+  execsql {
+    BEGIN;
+    UPDATE t1 SET a = a||'x' WHERE rowid%2==0;
+  }
+} {}
+do_test tkt1567-1.4 {
+  catchsql {
+    UPDATE t1 SET a = CASE WHEN rowid<90 THEN substr(a,1,10) ELSE '9999' END;
+  }
+} {1 {UNIQUE constraint failed: t1.a}}
+do_test tkt1567-1.5 {
+  execsql {
+    COMMIT;
+  }
+} {}
+integrity_check tkt1567-1.6
+
+do_test tkt1567-2.1 {
+  execsql {
+    CREATE TABLE t2(a TEXT PRIMARY KEY, rowid INT) WITHOUT rowid;
+  }
+  set bigstr abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ
+  for {set i 0} {$i<100} {incr i} {
+    set x [format %5d [expr $i*2]]
+    set sql "INSERT INTO t2 VALUES('$x-$bigstr', $i+1)"
+    execsql $sql
+  }
+} {}
+integrity_check tkt1567-2.2
+
+do_test tkt1567-2.3 {
+  execsql {
+    BEGIN;
+    UPDATE t2 SET a = a||'x' WHERE rowid%2==0;
+  }
+} {}
+do_test tkt1567-2.4 {
+  catchsql {
+    UPDATE t2 SET a = CASE WHEN rowid<90 THEN substr(a,1,10) ELSE '9999' END;
+  }
+} {1 {UNIQUE constraint failed: t2.a}}
+do_test tkt1567-2.5 {
+  execsql {
+    COMMIT;
+  }
+} {}
+integrity_check tkt1567-2.6
+
+finish_test
diff --git a/test/tkt1644.test b/test/tkt1644.test
new file mode 100644
index 0000000000000000000000000000000000000000..aa26a88d33abb156978fe4ba85b2be2cde0bc640
--- /dev/null
+++ b/test/tkt1644.test
@@ -0,0 +1,111 @@
+# 2006 January 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that ticket #1644 is
+# fixed.  Ticket #1644 complains that precompiled statements
+# are not expired correctly as a result of changes to TEMP
+# views and triggers.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !tempdb||!view {
+  finish_test
+  return
+}  
+
+# Create two tables T1 and T2 and make V1 point to T1.
+do_test tkt1644-1.1 {
+  execsql {
+    CREATE TABLE t1(a);
+    INSERT INTO t1 VALUES(1);
+    CREATE TABLE t2(b);
+    INSERT INTO t2 VALUES(99);
+    CREATE TEMP VIEW v1 AS SELECT * FROM t1;
+    SELECT * FROM v1;
+  }
+} {1}
+
+# The "SELECT * FROM v1" should be in the TCL interface cache below.
+# It will continue to point to T1 unless the cache is invalidated when
+# the view changes.
+#
+do_test tkt1644-1.2 {
+  execsql {
+    DROP VIEW v1;
+    CREATE TEMP VIEW v1 AS SELECT * FROM t2;
+    SELECT * FROM v1;
+  }
+} {99}
+
+# Cache an access to the T1 table.
+#
+do_test tkt1644-1.3 {
+  execsql {
+    SELECT * FROM t1;
+  }
+} {1}
+
+# Create a temp table T1.  Make sure the cache is invalidated so that
+# the statement is recompiled and refers to the empty temp table.
+#
+do_test tkt1644-1.4 {
+  execsql {
+    CREATE TEMP TABLE t1(x);
+  }
+  execsql {
+    SELECT * FROM t1;
+  }
+} {}
+
+ifcapable view {
+  do_test tkt1644-2.1 {
+    execsql {
+      CREATE TEMP TABLE temp_t1(a, b);
+    }
+    set ::DB [sqlite3_connection_pointer db]
+    set ::STMT [sqlite3_prepare $::DB "SELECT * FROM temp_t1" -1 DUMMY]
+    execsql {
+      DROP TABLE temp_t1;
+    }
+    list [sqlite3_step $::STMT] [sqlite3_finalize $::STMT]
+  } {SQLITE_ERROR SQLITE_SCHEMA}
+  
+  do_test tkt1644-2.2 {
+    execsql {
+      CREATE TABLE real_t1(a, b);
+      CREATE TEMP VIEW temp_v1 AS SELECT * FROM real_t1;
+    }
+    set ::DB [sqlite3_connection_pointer db]
+    set ::STMT [sqlite3_prepare $::DB "SELECT * FROM temp_v1" -1 DUMMY]
+    execsql {
+      DROP VIEW temp_v1;
+    }
+    list [sqlite3_step $::STMT] [sqlite3_finalize $::STMT]
+  } {SQLITE_ERROR SQLITE_SCHEMA}
+
+  do_test tkt1644-2.3 {
+    execsql {
+      CREATE TEMP VIEW temp_v1 AS SELECT * FROM real_t1 LIMIT 10 OFFSET 10;
+    }
+    set ::DB [sqlite3_connection_pointer db]
+    set ::STMT [sqlite3_prepare $::DB "SELECT * FROM temp_v1" -1 DUMMY]
+    execsql {
+      DROP VIEW temp_v1;
+    }
+    list [sqlite3_step $::STMT] [sqlite3_finalize $::STMT]
+  } {SQLITE_ERROR SQLITE_SCHEMA}
+}
+
+
+finish_test
diff --git a/test/tkt1667.test b/test/tkt1667.test
new file mode 100644
index 0000000000000000000000000000000000000000..63815061c0e2f080d9c2b2bfb30fd6abcc9a5a06
--- /dev/null
+++ b/test/tkt1667.test
@@ -0,0 +1,83 @@
+# 2006 February 10
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that ticket #1667 has been
+# fixed.  
+#
+#
+# $Id: tkt1667.test,v 1.4 2009/02/05 17:00:54 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !autovacuum||!tclvar {
+  finish_test
+  return
+}
+
+db close
+forcedelete test.db test.db-journal
+
+# Set the pending byte offset such that the page it is on is
+# the first autovacuum pointer map page in the file (assume a page 
+# size of 1024).
+
+set first_ptrmap_page   [expr 1024/5 + 3]
+sqlite3_test_control_pending_byte [expr 1024 * ($first_ptrmap_page-1)]
+
+sqlite3 db test.db
+
+do_test tkt1667-1 {
+  execsql {
+    PRAGMA auto_vacuum = 1;
+    BEGIN;
+    CREATE TABLE t1(a, b);
+  }
+  for {set i 0} {$i < 500} {incr i} {
+    execsql {
+      INSERT INTO t1 VALUES($i, randstr(1000, 2000))
+    }
+  }
+  execsql {
+    COMMIT;
+  }
+} {}
+for {set i 0} {$i < 500} {incr i} {
+  do_test tkt1667-2.$i.1 {
+    execsql {
+      DELETE FROM t1 WHERE a = $i;
+    }
+  } {}
+  integrity_check tkt1667-2.$i.2
+}
+
+do_test tkt1667-3 {
+  execsql {
+    BEGIN;
+  }
+  for {set i 0} {$i < 500} {incr i} {
+    execsql {
+      INSERT INTO t1 VALUES($i, randstr(1000, 2000))
+    }
+  }
+  execsql {
+    COMMIT;
+  }
+} {}
+do_test tkt1667-4.1 {
+  execsql {
+    DELETE FROM t1;
+  }
+} {}
+integrity_check tkt1667-4.2
+
+finish_test
diff --git a/test/tkt1873.test b/test/tkt1873.test
new file mode 100644
index 0000000000000000000000000000000000000000..9930790c747d846171c6015c7b5644fc87c5a4d6
--- /dev/null
+++ b/test/tkt1873.test
@@ -0,0 +1,72 @@
+# 2006 June 27
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that ticket #1873 has been
+# fixed.  
+#
+#
+# $Id: tkt1873.test,v 1.2 2007/10/09 08:29:33 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !attach {
+  finish_test
+  return
+}
+
+forcedelete test2.db test2.db-journal
+
+do_test tkt1873-1.1 {
+  execsql {
+    CREATE TABLE t1(x, y);
+    ATTACH 'test2.db' AS aux;
+    CREATE TABLE aux.t2(x, y);
+    INSERT INTO t1 VALUES(1, 2);
+    INSERT INTO t1 VALUES(3, 4);
+    INSERT INTO t2 VALUES(5, 6);
+    INSERT INTO t2 VALUES(7, 8);
+  }
+} {}
+
+do_test tkt1873-1.2 {
+  set rc [catch {
+    db eval {SELECT * FROM t2 LIMIT 1} {
+      db eval {DETACH aux}
+    }
+  } msg]
+  list $rc $msg
+} {1 {database aux is locked}}
+
+do_test tkt1873-1.3 {
+  set rc [catch {
+    db eval {SELECT * FROM t1 LIMIT 1} {
+      db eval {DETACH aux}
+    }
+  } msg]
+  list $rc $msg
+} {0 {}}
+
+do_test tkt1873-1.4 {
+  catchsql {
+    select * from t2;
+  }
+} {1 {no such table: t2}}
+
+do_test tkt1873-1.5 {
+  catchsql {
+    ATTACH 'test2.db' AS aux;
+    select * from t2;
+  }
+} {0 {5 6 7 8}}
+
+finish_test
diff --git a/test/tkt2141.test b/test/tkt2141.test
new file mode 100644
index 0000000000000000000000000000000000000000..a40659ff84d3f47f9dc23c2f49e444182b00d1f4
--- /dev/null
+++ b/test/tkt2141.test
@@ -0,0 +1,61 @@
+# 2007 January 03
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that ticket #2141 has been
+# fixed.  
+#
+#
+# $Id: tkt2141.test,v 1.2 2007/09/12 17:01:45 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !subquery {
+  finish_test
+  return
+}
+
+do_test tkt2141-1.1 {
+  execsql {
+      CREATE TABLE tab1 (t1_id integer PRIMARY KEY, t1_desc);
+      INSERT INTO tab1 VALUES(1,'rec 1 tab 1');
+      CREATE TABLE tab2 (t2_id integer PRIMARY KEY, t2_id_t1, t2_desc);
+      INSERT INTO tab2 VALUES(1,1,'rec 1 tab 2');
+      CREATE TABLE tab3 (t3_id integer PRIMARY KEY, t3_id_t2, t3_desc);
+      INSERT INTO tab3 VALUES(1,1,'aa');
+      SELECT *
+      FROM tab1 t1 LEFT JOIN tab2 t2 ON t1.t1_id = t2.t2_id_t1
+      WHERE t2.t2_id IN
+           (SELECT t2_id FROM tab2, tab3 ON t2_id = t3_id_t2
+             WHERE t3_id IN (1,2) GROUP BY t2_id);
+  }
+} {1 {rec 1 tab 1} 1 1 {rec 1 tab 2}}
+do_test tkt2141-1.2 {
+  execsql {
+      SELECT *
+      FROM tab1 t1 LEFT JOIN tab2 t2 ON t1.t1_id = t2.t2_id_t1
+      WHERE t2.t2_id IN
+           (SELECT t2_id FROM tab2, tab3 ON t2_id = t3_id_t2
+             WHERE t3_id IN (1,2));
+  }
+} {1 {rec 1 tab 1} 1 1 {rec 1 tab 2}}
+do_test tkt2141-1.3 {
+  execsql {
+      SELECT *
+      FROM tab1 t1 LEFT JOIN tab2 t2
+      WHERE t2.t2_id IN
+           (SELECT t2_id FROM tab2, tab3 ON t2_id = t3_id_t2
+             WHERE t3_id IN (1,2));
+  }
+} {1 {rec 1 tab 1} 1 1 {rec 1 tab 2}}
+
+finish_test
diff --git a/test/tkt2192.test b/test/tkt2192.test
new file mode 100644
index 0000000000000000000000000000000000000000..72ef9a2621d77f85dbaa8380db1437d44abfb0a6
--- /dev/null
+++ b/test/tkt2192.test
@@ -0,0 +1,140 @@
+# 2007 January 26
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that ticket #2192 has been
+# fixed.  
+#
+#
+# $Id: tkt2192.test,v 1.3 2008/08/04 03:51:24 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !datetime||!compound {
+  finish_test
+  return
+}
+
+do_test tkt2192-1.1 {
+  execsql {
+    -- Raw data (RBS) --------
+    
+    create table records (
+      date          real,
+      type          text,
+      description   text,
+      value         integer,
+      acc_name      text,
+      acc_no        text
+    );
+    
+    -- Direct Debits ----------------
+    create view direct_debits as
+      select * from records where type = 'D/D';
+    
+    create view monthly_direct_debits as
+      select strftime('%Y-%m', date) as date, (-1 * sum(value)) as value
+        from direct_debits
+       group by strftime('%Y-%m', date);
+    
+    -- Expense Categories ---------------
+    create view energy as
+      select strftime('%Y-%m', date) as date, (-1 * sum(value)) as value
+        from direct_debits
+       where description like '%NPOWER%'
+       group by strftime('%Y-%m', date);
+    
+    create view phone_internet as
+      select strftime('%Y-%m', date) as date, (-1 * sum(value)) as value
+        from direct_debits
+       where description like '%BT DIRECT%'
+          or description like '%SUPANET%'
+          or description like '%ORANGE%'
+       group by strftime('%Y-%m', date);
+    
+    create view credit_cards as
+      select strftime('%Y-%m', date) as date, (-1 * sum(value)) as value
+        from direct_debits where description like '%VISA%'
+       group by strftime('%Y-%m', date);
+    
+    -- Overview ---------------------
+    
+    create view expense_overview as
+      select 'Energy' as expense, date, value from energy
+      union
+      select 'Phone/Internet' as expense, date, value from phone_internet
+      union
+      select 'Credit Card' as expense, date, value from credit_cards;
+    
+    create view jan as
+      select 'jan', expense, value from expense_overview
+       where date like '%-01';
+    
+    create view nov as
+      select 'nov', expense, value from expense_overview
+       where date like '%-11';
+    
+    create view summary as
+      select * from jan join nov on (jan.expense = nov.expense);
+  }
+} {}
+do_test tkt2192-1.2 {
+  # set ::sqlite_addop_trace 1
+  execsql {
+    select * from summary;
+  }
+} {}
+do_test tkt2192-2.1 {
+  execsql {
+    CREATE TABLE t1(a,b);
+    CREATE VIEW v1 AS
+      SELECT * FROM t1 WHERE b%7=0 UNION SELECT * FROM t1 WHERE b%5=0;
+    INSERT INTO t1 VALUES(1,7);
+    INSERT INTO t1 VALUES(2,10);
+    INSERT INTO t1 VALUES(3,14);
+    INSERT INTO t1 VALUES(4,15);
+    INSERT INTO t1 VALUES(1,16);
+    INSERT INTO t1 VALUES(2,17);
+    INSERT INTO t1 VALUES(3,20);
+    INSERT INTO t1 VALUES(4,21);
+    INSERT INTO t1 VALUES(1,22);
+    INSERT INTO t1 VALUES(2,24);
+    INSERT INTO t1 VALUES(3,25);
+    INSERT INTO t1 VALUES(4,26);
+    INSERT INTO t1 VALUES(1,27);
+ 
+    SELECT b FROM v1 ORDER BY b;
+  }
+} {7 10 14 15 20 21 25}
+do_test tkt2192-2.2 {
+  execsql {
+    SELECT * FROM v1 ORDER BY a, b;
+  }
+} {1 7 2 10 3 14 3 20 3 25 4 15 4 21}
+do_test tkt2192-2.3 {
+  execsql {
+    SELECT x.a || '/' || x.b || '/' || y.b
+      FROM v1 AS x JOIN v1 AS y ON x.a=y.a AND x.b<y.b
+     ORDER BY x.a, x.b, y.b
+  }
+} {3/14/20 3/14/25 3/20/25 4/15/21}
+do_test tkt2192-2.4 {
+  execsql {
+    CREATE VIEW v2 AS
+    SELECT x.a || '/' || x.b || '/' || y.b AS z
+      FROM v1 AS x JOIN v1 AS y ON x.a=y.a AND x.b<y.b
+     ORDER BY x.a, x.b, y.b;
+    SELECT * FROM v2;
+  }
+} {3/14/20 3/14/25 3/20/25 4/15/21}
+
+finish_test
diff --git a/test/tkt2213.test b/test/tkt2213.test
new file mode 100644
index 0000000000000000000000000000000000000000..d5a81ab88c0c8f5bead7f59f07e4ec2c79c923b9
--- /dev/null
+++ b/test/tkt2213.test
@@ -0,0 +1,29 @@
+# 2007 Febuary 05
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that ticket #2213 has been
+# fixed.  
+#
+#
+# $Id: tkt2213.test,v 1.2 2008/07/12 14:52:20 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt2213-1 {
+  sqlite3_create_function db
+  catchsql {
+    SELECT tkt2213func(tkt2213func('abcd'));
+  }
+} {0 abcd}
+
+finish_test
diff --git a/test/tkt2251.test b/test/tkt2251.test
new file mode 100644
index 0000000000000000000000000000000000000000..799b7d69adeb5e06d2b90bafc9d8cceb2f1fdb5e
--- /dev/null
+++ b/test/tkt2251.test
@@ -0,0 +1,108 @@
+# 2007 Febuary 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that table column values
+# are pulled out of the database correctly.
+#
+# Long ago, the OP_Column opcode was sufficient to pull out the
+# value of a table column.  But then we added the ALTER TABLE ADD COLUMN
+# feature.  An added column might not actually exist in every row,
+# and so the OP_Column opcode has to contain a default value.  Later
+# still we added a feature whereby a REAL value with no fractional
+# part is stored in the database file as an integer to save space.
+# After extracting the value, we have to call OP_RealAffinity to
+# convert it back to a REAL.
+#
+# The sqlite3ExprCodeGetColumn() routine was added to take care of
+# all of the complications above.  The tests in this file attempt
+# to verify that sqlite3ExprCodeGetColumn() is used instead of a
+# raw OP_Column in all places where a table column is extracted from
+# the database.
+#
+# $Id: tkt2251.test,v 1.2 2007/09/12 17:01:45 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !altertable {
+  finish_test
+  return
+}
+
+# Create sample data.  Verify that the default value and type of an added
+# column is correct for aggregates.
+do_test tkt2251-1.1 {
+  execsql {
+    CREATE TABLE t1(a INTEGER);
+    INSERT INTO t1 VALUES(1);
+    INSERT INTO t1 VALUES(1);
+    INSERT INTO t1 VALUES(2);
+    INSERT INTO t1 VALUES(9);
+    INSERT INTO t1 VALUES(9);
+    INSERT INTO t1 VALUES(9);
+    INSERT INTO t1 VALUES(3);
+    INSERT INTO t1 VALUES(2);
+    ALTER TABLE t1 ADD COLUMN b REAL DEFAULT 4.0;
+    SELECT avg(b), typeof(avg(b)) FROM t1;
+  }
+} {4.0 real}
+do_test tkt2251-1.2 {
+  execsql {
+    SELECT sum(b), typeof(sum(b)) FROM t1;
+  }
+} {32.0 real}
+do_test tkt2251-1.3 {
+  execsql {
+    SELECT a, sum(b), typeof(sum(b)) FROM t1 GROUP BY a ORDER BY a;
+  }
+} {1 8.0 real 2 8.0 real 3 4.0 real 9 12.0 real}
+
+# Make sure that the REAL value comes out when values are accessed
+# by index.
+#
+do_test tkt2251-2.1 {
+  execsql {
+    SELECT b, typeof(b) FROM t1 WHERE a=3;
+  }
+} {4.0 real}
+do_test tkt2251-2.2 {
+  execsql {
+    CREATE INDEX t1i1 ON t1(a,b);
+    SELECT b, typeof(b) FROM t1 WHERE a=3;
+  }
+} {4.0 real}
+do_test tkt2251-2.3 {
+  execsql {
+    REINDEX;
+    SELECT b, typeof(b) FROM t1 WHERE a=3;
+  }
+} {4.0 real}
+
+# Make sure the correct REAL value is used when copying from one
+# table to another.
+#
+do_test tkt2251-3.1 {
+  execsql {
+    CREATE TABLE t2(x,y);
+    INSERT INTO t2 SELECT * FROM t1;
+    SELECT y, typeof(y) FROM t2 WHERE x=3;
+  }
+} {4.0 real}
+do_test tkt2251-3.2 {
+  execsql {
+    CREATE TABLE t3 AS SELECT * FROM t1;
+    SELECT b, typeof(b) FROM t3 WHERE a=3;
+  }
+} {4.0 real}
+
+
+finish_test
diff --git a/test/tkt2285.test b/test/tkt2285.test
new file mode 100644
index 0000000000000000000000000000000000000000..f177c22fec2fbb22ac82695e91f8b21ac2e760f1
--- /dev/null
+++ b/test/tkt2285.test
@@ -0,0 +1,56 @@
+# 2005 September 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. Specifically.
+# it contains tests to verify that ticket #2285 has been fixed.  
+#
+# $Id: tkt2285.test,v 1.2 2008/07/12 14:52:20 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !tempdb {
+  finish_test
+  return
+}
+
+do_test tkt2285-1.1 {
+  execsql {
+    PRAGMA locking_mode = EXCLUSIVE;
+  }
+  execsql {
+    BEGIN;
+    CREATE TABLE abc(a, b, c);
+    ROLLBACK;
+  }
+} {}
+
+do_test tkt2285-1.2 {
+  execsql {
+    SELECT * FROM sqlite_master;
+  }
+} {}
+
+ifcapable tempdb {
+  do_test tkt2285-2.1 {
+    execsql {
+      BEGIN;
+      CREATE TEMP TABLE abc(a, b, c);
+      ROLLBACK;
+    }
+  } {}
+  do_test tkt2285-2.2 {
+    execsql {
+      SELECT * FROM sqlite_temp_master;
+    }
+  } {}
+}
+
+finish_test
diff --git a/test/tkt2332.test b/test/tkt2332.test
new file mode 100644
index 0000000000000000000000000000000000000000..2d09dda6e3aae1ffcdcfd19f24d7bbbdcb3a6304
--- /dev/null
+++ b/test/tkt2332.test
@@ -0,0 +1,67 @@
+# 2007 May 3
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# $Id: tkt2332.test,v 1.4 2007/09/12 17:01:45 danielk1977 Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !incrblob||!tclvar {
+  finish_test
+  return
+}
+
+do_test tkt2332.1 {
+  execsql {
+    CREATE TABLE blobs (k INTEGER PRIMARY KEY, v BLOB);
+    PRAGMA cache_size = 100;
+  }
+} {}
+
+set ::iKey 1
+foreach Len [list 10000 100000 1000000] {
+  do_test tkt2332.$Len.1 {
+    set val "[expr rand()][expr rand()][expr rand()][expr rand()][expr rand()]"
+    set ::blobstr [string range \
+      [string repeat $val [expr ($Len/[string length $val])+1]] 0 [expr $Len-1]
+    ]
+
+    db eval { INSERT INTO blobs VALUES($::iKey, zeroblob($Len)) }
+  } {}
+
+  do_test tkt2332.$Len.2 {
+    execsql {
+      SELECT length(v) FROM blobs WHERE k = $::iKey;
+    }
+  } $Len
+
+  do_test tkt2332.$Len.3 {
+    set ::fd [db incrblob blobs v $::iKey]
+    puts -nonewline $::fd $::blobstr
+    close $::fd
+  } {}
+
+  do_test tkt2332.$Len.4 {
+    execsql { SELECT length(v) FROM blobs WHERE k = $::iKey; }
+  } $Len
+
+  do_test tkt2332.$Len.5 {
+    lindex [execsql {SELECT v FROM blobs WHERE k = $::iKey}] 0
+  } $::blobstr
+
+  incr ::iKey
+}
+
+# Free memory:
+unset ::blobstr
+
+finish_test
diff --git a/test/tkt2339.test b/test/tkt2339.test
new file mode 100644
index 0000000000000000000000000000000000000000..41acd377ce64d9df855ccc75dd3fc9c22690dc75
--- /dev/null
+++ b/test/tkt2339.test
@@ -0,0 +1,100 @@
+# 2007 May 6
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# $Id: tkt2339.test,v 1.2 2007/09/12 17:01:45 danielk1977 Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !subquery||!compound {
+  finish_test
+  return
+}
+
+do_test tkt2339.1 {
+  execsql {
+    create table t1(num int);
+    insert into t1 values (1);
+    insert into t1 values (2);
+    insert into t1 values (3);
+    insert into t1 values (4);
+    
+    create table t2(num int);
+    insert into t2 values (11);
+    insert into t2 values (12);
+    insert into t2 values (13);
+    insert into t2 values (14);
+    
+    SELECT * FROM (SELECT * FROM t1 ORDER BY num DESC LIMIT 2)
+    UNION
+    SELECT * FROM (SELECT * FROM t2 ORDER BY num DESC LIMIT 2)
+  }
+} {3 4 13 14}
+do_test tkt2339.2 {
+  execsql {
+    SELECT * FROM (SELECT * FROM t1 ORDER BY num DESC LIMIT 2)
+    UNION ALL
+    SELECT * FROM (SELECT * FROM t2 ORDER BY num DESC LIMIT 2)
+  }
+} {4 3 14 13}
+do_test tkt2339.3 {
+  execsql {
+    SELECT * FROM (SELECT * FROM t1 ORDER BY num DESC)
+    UNION ALL
+    SELECT * FROM (SELECT * FROM t2 ORDER BY num DESC LIMIT 2)
+  }
+} {4 3 2 1 14 13}
+do_test tkt2339.4 {
+  execsql {
+    SELECT * FROM (SELECT * FROM t1 ORDER BY num DESC LIMIT 2)
+    UNION ALL
+    SELECT * FROM (SELECT * FROM t2 ORDER BY num DESC)
+  }
+} {4 3 14 13 12 11}
+do_test tkt2339.5 {
+  execsql {
+    SELECT * FROM (SELECT * FROM t1 ORDER BY num DESC LIMIT 2)
+    UNION
+    SELECT * FROM (SELECT * FROM t2 ORDER BY num DESC)
+  }
+} {3 4 11 12 13 14}
+do_test tkt2339.6 {
+  execsql {
+    SELECT * FROM (SELECT * FROM t1 ORDER BY num DESC LIMIT 2)
+    EXCEPT
+    SELECT * FROM (SELECT * FROM t2 ORDER BY num DESC)
+  }
+} {3 4}
+do_test tkt2339.7 {
+  execsql {
+    SELECT * FROM (SELECT * FROM t1 LIMIT 2)
+    UNION
+    SELECT * FROM (SELECT * FROM t2 ORDER BY num DESC LIMIT 2)
+  }
+} {1 2 13 14}
+do_test tkt2339.8 {
+  execsql {
+    SELECT * FROM (SELECT * FROM t1 LIMIT 2)
+    UNION
+    SELECT * FROM (SELECT * FROM t2 LIMIT 2)
+  }
+} {1 2 11 12}
+do_test tkt2339.9 {
+  execsql {
+    SELECT * FROM (SELECT * FROM t1 ORDER BY num DESC LIMIT 2)
+    UNION
+    SELECT * FROM (SELECT * FROM t2 LIMIT 2)
+  }
+} {3 4 11 12}
+
+
+finish_test
diff --git a/test/tkt2391.test b/test/tkt2391.test
new file mode 100644
index 0000000000000000000000000000000000000000..d192b85bd7c65dcee40ab7b4401d7fa8583b82ca
--- /dev/null
+++ b/test/tkt2391.test
@@ -0,0 +1,49 @@
+#
+# 2007 May 28
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# $Id: tkt2391.test,v 1.1 2007/05/29 12:11:30 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt2391.1 {
+  execsql {
+    CREATE TABLE folders(folderid, parentid, foldername COLLATE binary);
+    INSERT INTO folders VALUES(1, 3, 'FolderA');
+    INSERT INTO folders VALUES(1, 3, 'folderB');
+    INSERT INTO folders VALUES(4, 0, 'FolderC');
+  }
+} {}
+
+do_test tkt2391.2 {
+  execsql {
+    SELECT count(*) FROM folders WHERE foldername < 'FolderC';
+  }
+} {1}
+
+do_test tkt2391.3 {
+  execsql {
+    SELECT count(*) FROM folders WHERE foldername < 'FolderC' COLLATE nocase;
+  }
+} {2}
+
+# This demonstrates the bug. Creating the index causes SQLite to ignore
+# the "COLLATE nocase" clause and use the default collation sequence 
+# for column "foldername" instead (happens to be BINARY in this case).
+#
+do_test tkt2391.4 {
+  execsql {
+    CREATE INDEX f_i ON folders(foldername);
+    SELECT count(*) FROM folders WHERE foldername < 'FolderC' COLLATE nocase;
+  }
+} {2}
+
+finish_test
diff --git a/test/tkt2409.test b/test/tkt2409.test
new file mode 100644
index 0000000000000000000000000000000000000000..936f57c98c6cf01215f0cad92bd07c11532699af
--- /dev/null
+++ b/test/tkt2409.test
@@ -0,0 +1,229 @@
+# 2007 June 13
+#
+# The author disclaims copyright to this source code. In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that ticket #2409 has been
+# fixed. More specifically, they verify that if SQLite cannot
+# obtain an EXCLUSIVE lock while trying to spill the cache during
+# any statement other than a COMMIT, an I/O error is returned instead
+# of SQLITE_BUSY.
+#
+# $Id: tkt2409.test,v 1.6 2008/08/28 17:46:19 drh Exp $
+
+# Test Outline:
+#
+#   tkt-2409-1.*: Cause a cache-spill during an INSERT that is within
+#       a db transaction but does not start a statement transaction.
+#       Verify that the transaction is automatically rolled back
+#       and SQLITE_IOERR_BLOCKED is returned
+#
+#       UPDATE: As of the pcache modifications, failing to upgrade to
+#       an exclusive lock when attempting a cache-spill is no longer an
+#       error. The pcache module allocates more space and keeps working
+#       in memory if this occurs.
+#
+#   tkt-2409-2.*: Cause a cache-spill while updating the change-counter
+#       during a database COMMIT. Verify that the transaction is not
+#       rolled back and SQLITE_BUSY is returned.
+#
+#   tkt-2409-3.*: Similar to 2409-1.*, but using many INSERT statements
+#       within a transaction instead of just one.
+#
+#       UPDATE: Again, pcache now just keeps working in main memory.
+#
+#   tkt-2409-4.*: Similar to 2409-1.*, but rig it so that the
+#       INSERT statement starts a statement transaction. Verify that
+#       SQLITE_BUSY is returned and the transaction is not rolled back.
+#
+#       UPDATE: This time, SQLITE_BUSY is not returned. pcache just uses
+#       more malloc()'d memory.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !pager_pragmas {
+  finish_test
+  return
+}
+
+sqlite3_extended_result_codes $::DB 1
+
+# Aquire a read-lock on the database using handle [db2].
+#
+proc read_lock_db {} {
+  if {$::STMT eq ""} {
+    set ::STMT [sqlite3_prepare db2 {SELECT rowid FROM sqlite_master} -1 TAIL]
+    set rc [sqlite3_step $::STMT]
+    if {$rc eq "SQLITE_ERROR"} {
+      unread_lock_db
+      read_lock_db
+    }
+  }
+}
+
+# Release any read-lock obtained using [read_lock_db]
+#
+proc unread_lock_db {} {
+  if {$::STMT ne ""} {
+    sqlite3_finalize $::STMT
+    set ::STMT ""
+  }
+}
+
+# Open the db handle used by [read_lock_db].
+#
+sqlite3 db2 test.db
+set ::STMT ""
+
+do_test tkt2409-1.1 {
+  execsql {
+    PRAGMA cache_size=10;
+    CREATE TABLE t1(x TEXT UNIQUE NOT NULL, y BLOB);
+  }
+  read_lock_db
+  set ::zShort [string repeat 0123456789 1]
+  set ::zLong  [string repeat 0123456789 1500]
+  catchsql {
+    BEGIN;
+    INSERT INTO t1 VALUES($::zShort, $::zLong);
+  }
+} {0 {}}
+
+do_test tkt2409-1.2 {
+  sqlite3_errcode $::DB
+} {SQLITE_OK}
+
+# Check the integrity of the cache.
+#
+integrity_check tkt2409-1.3
+
+# Check that the transaction was rolled back. Because the INSERT
+# statement in which the "I/O error" occurred did not open a statement
+# transaction, SQLite had no choice but to roll back the transaction.
+#
+do_test tkt2409-1.4 {
+  unread_lock_db
+  catchsql { ROLLBACK }
+} {0 {}}
+
+set ::zShort [string repeat 0123456789 1]
+set ::zLong  [string repeat 0123456789 1500]
+set ::rc 1
+for {set iCache 10} {$::rc} {incr iCache} {
+  execsql "PRAGMA cache_size = $iCache"
+  do_test tkt2409-2.1.$iCache {
+    read_lock_db
+    set ::rc [catch {
+      execsql {
+        BEGIN;
+        INSERT INTO t1 VALUES($::zShort, $::zLong);
+      }
+    } msg]
+    expr {($::rc == 1 && $msg eq "disk I/O error") || $::rc == 0}
+  } {1}
+}
+
+do_test tkt2409-2.2 {
+  catchsql {
+    ROLLBACK;
+    BEGIN;
+    INSERT INTO t1 VALUES($::zShort, $::zLong);
+    COMMIT;
+  }
+} {1 {database is locked}}
+
+do_test tkt2409-2.3 {
+  unread_lock_db
+  catchsql {
+    COMMIT;
+  }
+} {0 {}}
+
+
+do_test tkt2409-3.1 {
+  db close
+  set ::DB [sqlite3 db test.db; sqlite3_connection_pointer db]
+  sqlite3_extended_result_codes $::DB 1
+  execsql {
+    PRAGMA cache_size=10;
+    DELETE FROM t1;
+  }
+  read_lock_db
+  set ::zShort [string repeat 0123456789 1]
+  set ::zLong  [string repeat 0123456789 1500]
+  catchsql {
+    BEGIN;
+    INSERT INTO t1 SELECT $::zShort, $::zLong;
+  }
+} {0 {}}
+
+do_test tkt2409-3.2 {
+  sqlite3_errcode $::DB
+} {SQLITE_OK}
+
+# Check the integrity of the cache.
+#
+integrity_check tkt2409-3.3
+
+# Check that the transaction was rolled back. Because the INSERT
+# statement in which the "I/O error" occurred did not open a statement
+# transaction, SQLite had no choice but to roll back the transaction.
+#
+do_test tkt2409-3.4 {
+  unread_lock_db
+  catchsql { ROLLBACK }
+} {0 {}}
+integrity_check tkt2409-3.5
+
+expr {srand(1)}
+do_test tkt2409-4.1 {
+  execsql {
+    PRAGMA cache_size=20;
+    DROP TABLE t1;
+    CREATE TABLE t1 (x TEXT UNIQUE NOT NULL);
+  }
+
+  unset -nocomplain t1
+  array unset t1
+  set t1(0) 1
+  set sql ""
+  for {set i 0} {$i<5000} {incr i} {
+    set r 0
+    while {[info exists t1($r)]} {
+      set r [expr {int(rand()*1000000000)}]
+    }
+    set t1($r) 1
+    append sql "INSERT INTO t1 VALUES('some-text-$r');"
+  }
+
+  read_lock_db
+  execsql BEGIN
+  catchsql $sql
+} {0 {}}
+
+do_test tkt2409-4.2 {
+  sqlite3_errcode $::DB
+} {SQLITE_OK}
+
+# Check the integrity of the cache.
+#
+integrity_check tkt2409-4.3
+
+do_test tkt2409-4.4 {
+  catchsql { ROLLBACK }
+} {0 {}}
+integrity_check tkt2409-4.5
+
+unread_lock_db
+db2 close
+unset -nocomplain t1
+finish_test
diff --git a/test/tkt2450.test b/test/tkt2450.test
new file mode 100644
index 0000000000000000000000000000000000000000..50f7189b5f51b42828ea01e42f25c0a1536cf581
--- /dev/null
+++ b/test/tkt2450.test
@@ -0,0 +1,48 @@
+# 2007 June 24
+#
+# The author disclaims copyright to this source code. In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file is to test that ticket #2450 has been fixed.
+#
+# $Id: tkt2450.test,v 1.1 2007/06/24 06:32:18 danielk1977 Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt2450-1 {
+  execsql {
+    CREATE TABLE "t a" ("""cb""");
+    INSERT INTO "t a" ("""cb""") VALUES (1);
+    SELECT """cb""" FROM "t a";
+  }
+} {1}
+
+do_test tkt2450-2 {
+  execsql {
+    SELECT * FROM "t a";
+  }
+} {1}
+
+do_test tkt2450-3 {
+  execsql {
+    SELECT "t a".* FROM "t a";
+  }
+} {1}
+
+do_test tkt2450-3 {
+  execsql {
+    CREATE TABLE t1(a);
+    INSERT INTO t1 VALUES(2);
+    SELECT * FROM "t a", t1;
+  }
+} {1 2}
+
+finish_test
diff --git a/test/tkt2565.test b/test/tkt2565.test
new file mode 100644
index 0000000000000000000000000000000000000000..8df0419c65abd7bbe2fd717bd164eadbaa64a88e
--- /dev/null
+++ b/test/tkt2565.test
@@ -0,0 +1,92 @@
+# 2009 January 8
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This script attempts to reproduce the circumstances of ticket #2565.
+#
+# More specifically, this script attempts to generate rollback journals
+# that contain headers with nRec==0 that are followed by additional
+# valid headers.
+#
+# $Id: tkt2565.test,v 1.2 2009/04/09 01:23:49 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Use the alternative pcache and rig it to call pagerStress()
+# very frequently.
+#
+db close
+sqlite3_shutdown
+sqlite3_config_alt_pcache 1 100 0 1
+
+# Open two database connections to database "test.db".
+#
+proc reopen_database {} {
+  catch {db close}
+  sqlite3 db test.db
+  db cache size 0
+  execsql {
+    pragma page_size=512;
+    pragma auto_vacuum=2;
+    pragma cache_size=16;
+  }
+}
+
+# Open two database connections and create a single table in the db.
+#
+do_test tkt2565-1.0 {
+  reopen_database
+  execsql { CREATE TABLE A(Id INTEGER, Name TEXT) }
+} {}
+
+for {set iFail 1} {$iFail<200} {incr iFail} {
+  reopen_database
+  execsql { pragma locking_mode=exclusive }
+  set nRow [db one {SELECT count(*) FROM a}]
+  
+  # Dirty (at least) one of the pages in the cache.
+  do_test tkt2565-1.$iFail.1 {
+    execsql {
+      BEGIN EXCLUSIVE;
+      INSERT INTO a VALUES(1, 'ABCDEFGHIJKLMNOP');
+    }
+  } {}
+  
+  # Now try to commit the transaction. Cause an IO error to occur
+  # within this operation, which moves the pager into the error state.
+  #
+  set ::sqlite_io_error_persist 1
+  set ::sqlite_io_error_pending $iFail
+  do_test tkt2565-1.$iFail.2 {
+    set rc [catchsql {COMMIT}]
+    list
+  } {}
+  set ::sqlite_io_error_persist 0
+  set ::sqlite_io_error_pending 0
+  if {!$::sqlite_io_error_hit} break
+  set ::sqlite_io_error_hit 0
+}
+
+# Make sure this test script doesn't leave any files open.
+#
+do_test tkt2565-1.X {
+  catch { db close }
+  set sqlite_open_file_count
+} 0
+
+# Restore the pcache configuration for subsequent tests.
+#
+sqlite3_shutdown
+sqlite3_config_alt_pcache 0
+sqlite3_initialize
+autoinstall_test_functions
+
+finish_test
diff --git a/test/tkt2640.test b/test/tkt2640.test
new file mode 100644
index 0000000000000000000000000000000000000000..13a17e095ebbf8b1b7a92417cefeadd2a5385f2d
--- /dev/null
+++ b/test/tkt2640.test
@@ -0,0 +1,124 @@
+# 2007 Sep 12
+#
+# The author disclaims copyright to this source code. In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file is to test that ticket #2640 has been fixed.
+#
+# $Id: tkt2640.test,v 1.3 2008/08/04 03:51:24 danielk1977 Exp $
+#
+
+# The problem in ticket #2640 was that the query optimizer was 
+# not recognizing all uses of tables within subqueries in the
+# WHERE clause.  If the subquery contained a compound SELECT,
+# then tables that were used by terms of the compound other than
+# the last term would not be recognized as dependencies.
+# So if one of the SELECT statements within a compound made
+# use of a table that occurs later in a join, the query
+# optimizer would not recognize this and would try to evaluate
+# the subquery too early, before that tables value had been
+# established.
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !subquery||!compound {
+  finish_test
+  return
+}
+
+do_test tkt2640-1.1 {
+  execsql {
+    CREATE TABLE persons(person_id, name);
+    INSERT INTO persons VALUES(1,'fred');
+    INSERT INTO persons VALUES(2,'barney');
+    INSERT INTO persons VALUES(3,'wilma');
+    INSERT INTO persons VALUES(4,'pebbles');
+    INSERT INTO persons VALUES(5,'bambam');
+    CREATE TABLE directors(person_id);
+    INSERT INTO directors VALUES(5);
+    INSERT INTO directors VALUES(3);
+    CREATE TABLE writers(person_id);
+    INSERT INTO writers VALUES(2);
+    INSERT INTO writers VALUES(3);
+    INSERT INTO writers VALUES(4);
+    SELECT DISTINCT p.name
+      FROM persons p, directors d
+     WHERE d.person_id=p.person_id
+       AND NOT EXISTS (
+             SELECT person_id FROM directors d1 WHERE d1.person_id=p.person_id
+             EXCEPT
+             SELECT person_id FROM writers w
+           );
+  }
+} {wilma}
+do_test tkt2640-1.2 {
+  execsql {
+    SELECT DISTINCT p.name
+      FROM persons p CROSS JOIN directors d
+     WHERE d.person_id=p.person_id
+       AND NOT EXISTS (
+             SELECT person_id FROM directors d1 WHERE d1.person_id=p.person_id
+             EXCEPT
+             SELECT person_id FROM writers w
+           );
+  }
+} {wilma}
+do_test tkt2640-1.3 {
+  execsql {
+    SELECT DISTINCT p.name
+      FROM directors d CROSS JOIN persons p
+     WHERE d.person_id=p.person_id
+       AND NOT EXISTS (
+             SELECT person_id FROM directors d1 WHERE d1.person_id=p.person_id
+             EXCEPT
+             SELECT person_id FROM writers w
+           );
+  }
+} {wilma}
+do_test tkt2640-1.4 {
+  execsql {
+    SELECT DISTINCT p.name
+      FROM persons p, directors d
+     WHERE d.person_id=p.person_id
+       AND NOT EXISTS (
+             SELECT person_id FROM directors d1 WHERE d1.person_id=d.person_id
+             EXCEPT
+             SELECT person_id FROM writers w
+           );
+  }
+} {wilma}
+do_test tkt2640-1.5 {
+  execsql {
+    SELECT DISTINCT p.name
+      FROM persons p CROSS JOIN directors d
+     WHERE d.person_id=p.person_id
+       AND NOT EXISTS (
+             SELECT person_id FROM directors d1 WHERE d1.person_id=d.person_id
+             EXCEPT
+             SELECT person_id FROM writers w
+           );
+  }
+} {wilma}
+do_test tkt2640-1.6 {
+  execsql {
+    SELECT DISTINCT p.name
+      FROM directors d CROSS JOIN persons p
+     WHERE d.person_id=p.person_id
+       AND NOT EXISTS (
+             SELECT person_id FROM directors d1 WHERE d1.person_id=d.person_id
+             EXCEPT
+             SELECT person_id FROM writers w
+           );
+  }
+} {wilma}
+
+
+
+finish_test
diff --git a/test/tkt2643.test b/test/tkt2643.test
new file mode 100644
index 0000000000000000000000000000000000000000..5c58863022cbea2a4466d9e3ce7f1ed809e574fa
--- /dev/null
+++ b/test/tkt2643.test
@@ -0,0 +1,39 @@
+# 2007 Sep 12
+#
+# The author disclaims copyright to this source code. In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file is to test that ticket #2643 has been fixed.
+#
+# $Id: tkt2643.test,v 1.1 2007/09/13 17:54:41 drh Exp $
+#
+
+# The problem in ticket #2643 has to do with the query optimizer
+# making bad assumptions about index cost when data from ANALYZE
+# is available.
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt2643-1.1 {
+  execsql {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b UNIQUE, c);
+    INSERT INTO t1 VALUES(1,2,3);
+    INSERT INTO t1 VALUES(2,3,4);
+    ANALYZE;
+  }
+  db close
+  sqlite3 db test.db
+  execsql {
+    CREATE INDEX i1 ON t1(c);
+    SELECT count(*) FROM t1 WHERE c IS NOT NULL
+  }
+} {2}
+
+finish_test
diff --git a/test/tkt2686.test b/test/tkt2686.test
new file mode 100644
index 0000000000000000000000000000000000000000..20447bbaed0d000c4f7ac6832ffdf775213d8470
--- /dev/null
+++ b/test/tkt2686.test
@@ -0,0 +1,81 @@
+# 2007 Oct 3
+#
+# The author disclaims copyright to this source code. In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file is to test that ticket #2686 has been fixed.
+#
+# $Id: tkt2686.test,v 1.3 2008/02/02 02:48:52 drh Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !subquery {
+  finish_test
+  return
+}
+
+db eval {
+  PRAGMA page_size=1024;
+  PRAGMA max_page_count=50;
+  PRAGMA auto_vacuum=0;
+  CREATE TABLE filler (fill);
+}
+for {set i 1} {$i<2000} {incr i} {
+  do_test tkt2686-$i.1 {
+    db eval BEGIN
+    set rc [catch {
+      while 1 {
+        db eval {INSERT INTO filler (fill) VALUES (randstr(1000, 10000)) }
+      }
+    } msg]
+    lappend rc $msg
+  } {1 {database or disk is full}}
+  do_test tkt2686-$i.2 {
+    execsql {
+      DELETE FROM filler 
+       WHERE rowid <= (SELECT MAX(rowid) FROM filler LIMIT 20)
+    }
+  } {}
+  integrity_check tkt2686-$i.3
+  catch {db eval COMMIT}
+}
+
+db close
+forcedelete test.db test.db-journal
+sqlite3 db test.db
+
+db eval {
+  PRAGMA page_size=1024;
+  PRAGMA max_page_count=50;
+  PRAGMA auto_vacuum=1;
+  CREATE TABLE filler (fill);
+}
+for {set i 10000} {$i<12000} {incr i} {
+  do_test tkt2686-$i.1 {
+    db eval BEGIN
+    set rc [catch {
+      while 1 {
+        db eval {INSERT INTO filler (fill) VALUES (randstr(1000, 10000)) }
+      }
+    } msg]
+    lappend rc $msg
+  } {1 {database or disk is full}}
+  do_test tkt2686-$i.2 {
+    execsql {
+      DELETE FROM filler 
+       WHERE rowid <= (SELECT MAX(rowid) FROM filler LIMIT 20)
+    }
+  } {}
+  integrity_check tkt2686-$i.3
+  catch {db eval COMMIT}
+}
+
+finish_test
diff --git a/test/tkt2767.test b/test/tkt2767.test
new file mode 100644
index 0000000000000000000000000000000000000000..29b520146d46d200f223afc99c8f43da6c390436
--- /dev/null
+++ b/test/tkt2767.test
@@ -0,0 +1,90 @@
+# 2007 Oct 3
+#
+# The author disclaims copyright to this source code. In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file is to test that ticket #2767 has been fixed.
+# Ticket #2767 is for a VDBE stack overflow on BEFORE
+# triggers that run RAISE(IGNORE).
+#
+# $Id: tkt2767.test,v 1.3 2009/04/07 14:14:23 danielk1977 Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !trigger { finish_test ; return }
+
+do_test tkt2767-1.1 {
+  execsql {
+    -- Construct a table with many rows of data
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(1);
+    INSERT INTO t1 VALUES(2);
+    INSERT INTO t1 SELECT x+2 FROM t1;
+    INSERT INTO t1 SELECT x+4 FROM t1;
+    INSERT INTO t1 SELECT x+8 FROM t1;
+    INSERT INTO t1 SELECT x+16 FROM t1;
+
+    -- BEFORE triggers that invoke raise(ignore).  The effect of
+    -- these triggers should be to make INSERTs, UPDATEs, and DELETEs
+    -- into no-ops.
+    CREATE TRIGGER r1 BEFORE UPDATE ON t1 BEGIN
+      SELECT raise(ignore);
+    END;
+    CREATE TRIGGER r2 BEFORE DELETE ON t1 BEGIN
+      SELECT raise(ignore);
+    END;
+    CREATE TRIGGER r3 BEFORE INSERT ON t1 BEGIN
+      SELECT raise(ignore);
+    END;
+
+    -- Verify the table content
+    SELECT count(*), sum(x) FROM t1;
+  }
+} {32 528}
+
+# Try to delete all elements of the table.  This will invoke the
+# DELETE trigger 32 times, which should overflow the VDBE stack if
+# the problem of #2767 is not fixed.  If the problem is fixed, all
+# the deletes should be no-ops so the table should remain unchanged.
+#
+do_test tkt2767-1.2 {
+  execsql {
+    DELETE FROM t1 WHERE x>0;
+    SELECT count(*), sum(x) FROM t1;
+  }
+} {32 528}
+
+# Try to update all elements of the table.  This will invoke the
+# UPDATE trigger 32 times, which should overflow the VDBE stack if
+# the problem of #2767 is not fixed.  If the problem is fixed, all
+# the updates should be no-ops so the table should remain unchanged.
+#
+do_test tkt2767-1.3 {
+  execsql {
+    UPDATE t1 SET x=x+1;
+    SELECT count(*), sum(x) FROM t1;
+  }
+} {32 528}
+
+# Invoke the insert trigger.  The insert trigger was working
+# even prior to the fix of #2767.  But it seems good to go ahead
+# and verify that it works.
+#
+do_test tkt2767-1.4 {
+  execsql {
+    INSERT INTO t1 SELECT x+32 FROM t1;
+    SELECT count(*), sum(x) FROM t1;
+  }
+} {32 528}
+
+
+
+finish_test
diff --git a/test/tkt2817.test b/test/tkt2817.test
new file mode 100644
index 0000000000000000000000000000000000000000..579cf2f7ba62fd7b606a8ef0251b87c6e5bbe837
--- /dev/null
+++ b/test/tkt2817.test
@@ -0,0 +1,72 @@
+# 2007 December 02 
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# Specifically, it tests that bug 2817 is fixed.
+#
+# $Id: tkt2817.test,v 1.2 2008/07/12 14:52:21 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt2817-1.0 {
+  execsql {
+    CREATE TEMP TABLE tbl(a, b, c);
+    -- INSERT INTO tbl VALUES(1, 'abc', 'def');
+    -- INSERT INTO tbl VALUES(2, 'ghi', 'jkl');
+  }
+} {}
+do_test tkt2817-1.1 {
+  execsql {
+    CREATE TABLE main.tbl(a, b, c); 
+    CREATE INDEX main.tbli ON tbl(a, b, c);
+    INSERT INTO main.tbl SELECT a, b, c FROM temp.tbl;
+  }
+} {}
+
+# When bug #2817 existed, this test was failing.
+#
+integrity_check tkt2817-1.2
+
+# So was this one.
+#
+db close
+sqlite3 db test.db
+integrity_check tkt2817-1.3
+
+
+# These tests - tkt2817-2.* - are the same as the previous block, except
+# for the fact that the temp-table and the main table do not share the
+# same name. #2817 did not cause a problem with these tests.
+#
+db close
+forcedelete test.db
+sqlite3 db test.db
+do_test tkt2817-2.0 {
+  execsql {
+    CREATE TEMP TABLE tmp(a, b, c);
+    INSERT INTO tmp VALUES(1, 'abc', 'def');
+    INSERT INTO tmp VALUES(2, 'ghi', 'jkl');
+  }
+} {}
+do_test tkt2817-2.1 {
+  execsql {
+    CREATE TABLE main.tbl(a, b, c); 
+    CREATE INDEX main.tbli ON tbl(a, b, c);
+    INSERT INTO main.tbl SELECT a, b, c FROM temp.tmp;
+  }
+} {}
+integrity_check tkt2817-2.2
+db close
+sqlite3 db test.db
+integrity_check tkt2817-2.3
+
+finish_test
diff --git a/test/tkt2820.test b/test/tkt2820.test
new file mode 100644
index 0000000000000000000000000000000000000000..11c4cd3a0f04b09a3b4c451a2b92009468f75944
--- /dev/null
+++ b/test/tkt2820.test
@@ -0,0 +1,94 @@
+# 2007 Dec 4
+#
+# The author disclaims copyright to this source code. In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file is to test that ticket #2820 has been fixed.
+# Ticket #2820 observes that a DROP TABLE statement that
+# occurs while a query is in process will fail with a
+# "database is locked" error, but the entry in the sqlite_master
+# table will still be removed.  This is incorrect.  The
+# entry in the sqlite_master table should persist when 
+# the DROP fails due to an error.
+#
+# $Id: tkt2820.test,v 1.1 2007/12/04 16:54:53 drh Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+proc test_schema_change {testid init ddl res} {
+  db close
+  forcedelete test.db test.db-journal
+  sqlite3 db test.db
+  execsql $init
+  do_test tkt2820-$testid.1 {
+    set STMT [sqlite3_prepare db {SELECT * FROM sqlite_master} -1 DUMMY]
+    sqlite3_step $STMT
+  } {SQLITE_ROW}
+#if {$testid==3} {execsql {PRAGMA vdbe_trace=ON}}
+  do_test tkt2820-$testid.2 "catchsql [list $ddl]" \
+       {1 {database table is locked}}
+  do_test tkt2820-$testid.3 {
+    sqlite3_finalize $STMT
+    execsql {SELECT name FROM sqlite_master ORDER BY 1}
+  } $res
+  integrity_check tkt2820-$testid.4
+  db close
+  sqlite3 db test.db
+  integrity_check tkt2820-$testid.5
+}
+
+test_schema_change 1 {
+  CREATE TABLE t1(a);
+} {
+  DROP TABLE t1
+} {t1}
+test_schema_change 2 {
+  CREATE TABLE t1(a);
+  CREATE TABLE t2(b);
+} {
+  DROP TABLE t2
+} {t1 t2}
+test_schema_change 3 {
+  CREATE TABLE t1(a);
+  CREATE INDEX i1 ON t1(a);
+} {
+  DROP INDEX i1
+} {i1 t1}
+
+# We further observe that prior to the fix associated with ticket #2820,
+# no statement journal would be created on an SQL statement that was run
+# while a second statement was active, as long as we are in autocommit
+# mode.  This is incorrect.
+#
+do_test tkt2820-4.1 {
+  db close
+  forcedelete test.db test.db-journal
+  sqlite3 db test.db
+  db eval {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY);
+    INSERT INTO t1 VALUES(1);
+    INSERT INTO t1 VALUES(2);
+  }
+
+  # The INSERT statement within the loop should fail on a
+  # constraint violation on the second inserted row.  This
+  # should cause the entire INSERT to rollback using a statement
+  # journal.
+  #
+  db eval {SELECT name FROM sqlite_master} {
+    catch {db eval {
+      INSERT INTO t1 SELECT a+1 FROM t1 ORDER BY a DESC
+    }}
+  }
+  db eval {SELECT a FROM t1 ORDER BY a}
+} {1 2}
+
+finish_test
diff --git a/test/tkt2822.test b/test/tkt2822.test
new file mode 100644
index 0000000000000000000000000000000000000000..d0b16338c6b842a81ed0aaf2daacc8e10dbfa5ba
--- /dev/null
+++ b/test/tkt2822.test
@@ -0,0 +1,346 @@
+# 2007 Dec 4
+#
+# The author disclaims copyright to this source code. In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file is to test that the issues surrounding expressions in
+# ORDER BY clauses on compound SELECT statements raised by ticket
+# #2822 have been dealt with.
+#
+# $Id: tkt2822.test,v 1.6 2008/08/20 16:35:10 drh Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !compound {
+  finish_test
+  return
+}
+
+# The ORDER BY matching algorithm is three steps:
+# 
+#   (1)  If the ORDER BY term is an integer constant i, then
+#        sort by the i-th column of the result set.
+# 
+#   (2)  If the ORDER BY term is an identifier (not x.y or x.y.z
+#        but simply x) then look for a column alias with the same
+#        name.  If found, then sort by that column.
+# 
+#   (3)  Evaluate the term as an expression and sort by the
+#        value of the expression.
+# 
+# For a compound SELECT the rules are modified slightly.
+# In the third rule, the expression must exactly match one
+# of the result columns.  The sequences of three rules is
+# attempted first on the left-most SELECT.  If that doesn't
+# work, we move to the right, one by one.
+#
+# Rule (3) is not in standard SQL - it is an SQLite extension,
+# though one copied from PostgreSQL.  The rule for compound
+# queries where a search is made of SELECTs to the right
+# if the left-most SELECT does not match is not a part of
+# standard SQL either.  This extension is unique to SQLite
+# as far as we know.
+#
+# Rule (2) was added by the changes ticket #2822.  Prior to
+# that changes, SQLite did not support rule (2), making it
+# technically in violation of standard SQL semantics.  
+# No body noticed because rule (3) has the same effect as
+# rule (2) except in some obscure cases.
+#
+
+
+# Test plan:
+#
+#   tkt2822-1.* - Simple identifier as ORDER BY expression.
+#   tkt2822-2.* - More complex ORDER BY expressions.
+
+do_test tkt2822-0.1 {
+  execsql {
+    CREATE TABLE t1(a, b, c);
+    CREATE TABLE t2(a, b, c);
+
+    INSERT INTO t1 VALUES(1, 3, 9);
+    INSERT INTO t1 VALUES(3, 9, 27);
+    INSERT INTO t1 VALUES(5, 15, 45);
+
+    INSERT INTO t2 VALUES(2, 6, 18);
+    INSERT INTO t2 VALUES(4, 12, 36);
+    INSERT INTO t2 VALUES(6, 18, 54);
+  }
+} {}
+
+# Test the "ORDER BY <integer>" syntax.
+#
+do_test tkt2822-1.1 {
+  execsql {
+    SELECT a, b, c FROM t1 UNION ALL SELECT a, b, c FROM t2 ORDER BY 1;
+  }
+} {1 3 9 2 6 18 3 9 27 4 12 36 5 15 45 6 18 54}
+do_test tkt2822-1.2 {
+  execsql {
+    SELECT a, CAST (b AS TEXT), c FROM t1 
+      UNION ALL 
+    SELECT a, b, c FROM t2 
+      ORDER BY 2;
+  }
+} {2 6 18 4 12 36 6 18 54 5 15 45 1 3 9 3 9 27}
+
+# Test the "ORDER BY <identifier>" syntax.
+#
+do_test tkt2822-2.1 {
+  execsql {
+    SELECT a, b, c FROM t1 UNION ALL SELECT a, b, c FROM t2 ORDER BY a;
+  }
+} {1 3 9 2 6 18 3 9 27 4 12 36 5 15 45 6 18 54}
+
+do_test tkt2822-2.2 {
+  execsql {
+    SELECT a, CAST (b AS TEXT) AS x, c FROM t1 
+      UNION ALL 
+    SELECT a, b, c FROM t2 
+      ORDER BY x;
+  }
+} {2 6 18 4 12 36 6 18 54 5 15 45 1 3 9 3 9 27}
+do_test tkt2822-2.3 {
+  execsql {
+    SELECT t1.a, b, c FROM t1 UNION ALL SELECT t2.a, b, c FROM t2 ORDER BY a;
+  }
+} {1 3 9 2 6 18 3 9 27 4 12 36 5 15 45 6 18 54}
+
+# Test the "ORDER BY <expression>" syntax.
+#
+do_test tkt2822-3.1 {
+  execsql {
+    SELECT a, CAST (b AS TEXT) AS x, c FROM t1 
+      UNION ALL 
+    SELECT a, b, c FROM t2 
+      ORDER BY CAST (b AS TEXT);
+  }
+} {2 6 18 4 12 36 6 18 54 5 15 45 1 3 9 3 9 27}
+do_test tkt2822-3.2 {
+  execsql {
+    SELECT t1.a, b, c FROM t1 UNION ALL SELECT t2.a, b, c FROM t2 ORDER BY t1.a;
+  }
+} {1 3 9 2 6 18 3 9 27 4 12 36 5 15 45 6 18 54}
+
+# Test that if a match cannot be found in the leftmost SELECT, an
+# attempt is made to find a match in subsequent SELECT statements.
+#
+do_test tkt2822-3.3 {
+  execsql {
+    SELECT a, b, c FROM t1 UNION ALL SELECT a AS x, b, c FROM t2 ORDER BY x;
+  }
+} {1 3 9 2 6 18 3 9 27 4 12 36 5 15 45 6 18 54}
+do_test tkt2822-3.4 {
+  # But the leftmost SELECT takes precedence.
+  execsql {
+    SELECT a AS b, CAST (b AS TEXT) AS a, c FROM t1 
+      UNION ALL 
+    SELECT a, b, c FROM t2 
+      ORDER BY a;
+  }
+} {2 6 18 4 12 36 6 18 54 5 15 45 1 3 9 3 9 27}
+do_test tkt2822-3.5 {
+  execsql {
+    SELECT a, b, c FROM t2 
+      UNION ALL 
+    SELECT a AS b, CAST (b AS TEXT) AS a, c FROM t1 
+      ORDER BY a;
+  }
+} {1 3 9 2 6 18 3 9 27 4 12 36 5 15 45 6 18 54}
+
+# Test some error conditions (ORDER BY clauses that match no column).
+#
+do_test tkt2822-4.1 {
+  catchsql {
+    SELECT a, b, c FROM t1 UNION ALL SELECT a, b, c FROM t2 ORDER BY x
+  }
+} {1 {1st ORDER BY term does not match any column in the result set}}
+do_test tkt2822-4.2 {
+  catchsql {
+    SELECT a, CAST (b AS TEXT) AS x, c FROM t1 
+      UNION ALL 
+    SELECT a, b, c FROM t2 
+      ORDER BY CAST (b AS INTEGER);
+  }
+} {1 {1st ORDER BY term does not match any column in the result set}}
+
+# Tests for rule (2).
+#
+# The "ORDER BY b" should match the column alias (rule 2), not the
+# the t3.b value (rule 3).  
+#
+do_test tkt2822-5.1 {
+  execsql {
+    CREATE TABLE t3(a,b);
+    INSERT INTO t3 VALUES(1,8);
+    INSERT INTO t3 VALUES(9,2);
+
+    SELECT a AS b FROM t3 ORDER BY b;
+  }
+} {1 9}
+do_test tkt2822-5.2 {
+  # Case does not matter.  b should match B
+  execsql {
+    SELECT a AS b FROM t3 ORDER BY B;
+  }
+} {1 9}
+do_test tkt2822-5.3 {
+  # Quoting should not matter
+  execsql {
+    SELECT a AS 'b' FROM t3 ORDER BY "B";
+  }
+} {1 9}
+do_test tkt2822-5.4 {
+  # Quoting should not matter
+  execsql {
+    SELECT a AS "b" FROM t3 ORDER BY [B];
+  }
+} {1 9}
+
+# In "ORDER BY +b" the term is now an expression rather than
+# a label.  It therefore matches by rule (3) instead of rule (2).
+# 
+do_test tkt2822-5.5 {
+  execsql {
+    SELECT a AS b FROM t3 ORDER BY +b;
+  }
+} {9 1}
+
+# Tests for rule 2 in compound queries
+#
+do_test tkt2822-6.1 {
+  execsql {
+    CREATE TABLE t6a(p,q);
+    INSERT INTO t6a VALUES(1,8);
+    INSERT INTO t6a VALUES(9,2);
+    CREATE TABLE t6b(x,y);
+    INSERT INTO t6b VALUES(1,7);
+    INSERT INTO t6b VALUES(7,2);
+
+    SELECT p, q FROM t6a UNION ALL SELECT x, y FROM t6b ORDER BY 1, 2
+  }
+} {1 7 1 8 7 2 9 2}
+do_test tkt2822-6.2 {
+  execsql {
+    SELECT p PX, q QX FROM t6a UNION ALL SELECT x XX, y YX FROM t6b
+    ORDER BY PX, YX
+  }
+} {1 7 1 8 7 2 9 2}
+do_test tkt2822-6.3 {
+  execsql {
+    SELECT p PX, q QX FROM t6a UNION ALL SELECT x XX, y YX FROM t6b
+    ORDER BY XX, QX
+  }
+} {1 7 1 8 7 2 9 2}
+do_test tkt2822-6.4 {
+  execsql {
+    SELECT p PX, q QX FROM t6a UNION ALL SELECT x XX, y YX FROM t6b
+    ORDER BY QX, XX
+  }
+} {7 2 9 2 1 7 1 8}
+do_test tkt2822-6.5 {
+  execsql {
+    SELECT p PX, q QX FROM t6a UNION ALL SELECT x XX, y YX FROM t6b
+    ORDER BY t6b.x, QX
+  }
+} {1 7 1 8 7 2 9 2}
+do_test tkt2822-6.6 {
+  execsql {
+    SELECT p PX, q QX FROM t6a UNION ALL SELECT x XX, y YX FROM t6b
+    ORDER BY t6a.q, XX
+  }
+} {7 2 9 2 1 7 1 8}
+
+# More error message tests.  This is really more of a test of the
+# %r ordinal value formatting capablity added to sqlite3_snprintf()
+# by ticket #2822.
+#
+do_test tkt2822-7.1 {
+  execsql {
+    CREATE TABLE t7(a1,a2,a3,a4,a5,a6,a7,a8,a9,a10,a11,a12,a13,a14,
+                    a15,a16,a17,a18,a19,a20,a21,a22,a23,a24,a25);
+  }
+  catchsql {
+    SELECT * FROM t7 ORDER BY 0;
+  }
+} {1 {1st ORDER BY term out of range - should be between 1 and 25}}
+do_test tkt2822-7.2.1 {
+  catchsql {
+    SELECT * FROM t7 ORDER BY 1, 0;
+  }
+} {1 {2nd ORDER BY term out of range - should be between 1 and 25}}
+do_test tkt2822-7.2.2 {
+  catchsql {
+    SELECT * FROM t7 ORDER BY 1, 26;
+  }
+} {1 {2nd ORDER BY term out of range - should be between 1 and 25}}
+do_test tkt2822-7.2.3 {
+  catchsql {
+    SELECT * FROM t7 ORDER BY 1, 65536;
+  }
+} {1 {2nd ORDER BY term out of range - should be between 1 and 25}}
+do_test tkt2822-7.3 {
+  catchsql {
+    SELECT * FROM t7 ORDER BY 1, 2, 0;
+  }
+} {1 {3rd ORDER BY term out of range - should be between 1 and 25}}
+do_test tkt2822-7.4 {
+  catchsql {
+    SELECT * FROM t7 ORDER BY 1, 2, 3, 0;
+  }
+} {1 {4th ORDER BY term out of range - should be between 1 and 25}}
+do_test tkt2822-7.9 {
+  catchsql {
+    SELECT * FROM t7 ORDER BY 1, 2, 3, 4, 5, 6, 7, 8, 0;
+  }
+} {1 {9th ORDER BY term out of range - should be between 1 and 25}}
+do_test tkt2822-7.10 {
+  catchsql {
+    SELECT * FROM t7 ORDER BY 1, 2, 3, 4, 5, 6, 7, 8, 9, 0;
+  }
+} {1 {10th ORDER BY term out of range - should be between 1 and 25}}
+do_test tkt2822-7.11 {
+  catchsql {
+    SELECT * FROM t7 ORDER BY 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 0;
+  }
+} {1 {11th ORDER BY term out of range - should be between 1 and 25}}
+do_test tkt2822-7.12 {
+  catchsql {
+    SELECT * FROM t7 ORDER BY 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 0;
+  }
+} {1 {12th ORDER BY term out of range - should be between 1 and 25}}
+do_test tkt2822-7.13 {
+  catchsql {
+    SELECT * FROM t7 ORDER BY 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 0;
+  }
+} {1 {13th ORDER BY term out of range - should be between 1 and 25}}
+do_test tkt2822-7.20 {
+  catchsql {
+    SELECT * FROM t7 ORDER BY 1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
+                             11,12,13,14,15,16,17,18,19, 0
+  }
+} {1 {20th ORDER BY term out of range - should be between 1 and 25}}
+do_test tkt2822-7.21 {
+  catchsql {
+    SELECT * FROM t7 ORDER BY 1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
+                             11,12,13,14,15,16,17,18,19, 20, 0
+  }
+} {1 {21st ORDER BY term out of range - should be between 1 and 25}}
+do_test tkt2822-7.22 {
+  catchsql {
+    SELECT * FROM t7 ORDER BY 1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
+                             11,12,13,14,15,16,17,18,19, 20, 21, 0
+  }
+} {1 {22nd ORDER BY term out of range - should be between 1 and 25}}
+
+
+finish_test
diff --git a/test/tkt2832.test b/test/tkt2832.test
new file mode 100644
index 0000000000000000000000000000000000000000..f9986990069b34aa8343466122c386f44b141442
--- /dev/null
+++ b/test/tkt2832.test
@@ -0,0 +1,67 @@
+# 2007 Dec 12
+#
+# The author disclaims copyright to this source code. In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file is to test that ticket #2832 has been fixed.
+#
+# $Id: tkt2832.test,v 1.5 2009/04/07 14:14:23 danielk1977 Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !trigger { finish_test ; return }
+
+do_test tkt2832-1.1 {
+  execsql {
+    CREATE TABLE t1(a PRIMARY KEY);
+    INSERT INTO t1 VALUES(2);
+    INSERT INTO t1 VALUES(1);
+    INSERT INTO t1 VALUES(3);
+  }
+} {}
+do_test tkt2832-1.2 {
+  execsql {
+    UPDATE OR REPLACE t1 SET a = 1;
+    SELECT * FROM t1;
+  }
+} {1}
+
+do_test tkt2832-2.1 {
+  execsql {
+    CREATE TABLE t2(a, b);
+    CREATE TRIGGER t2_t AFTER UPDATE ON t2 BEGIN
+      DELETE FROM t2 WHERE a = new.a + 1;
+    END;
+    INSERT INTO t2 VALUES(1, 2);
+    INSERT INTO t2 VALUES(2, 3);
+  }
+} {}
+do_test tkt2832-2.2 {
+  execsql { 
+    UPDATE t2 SET b = 5 
+  }
+} {}
+
+do_test tkt2832-3.1 {
+  execsql {
+    CREATE TABLE t3(a, b);
+    CREATE TRIGGER t3_t AFTER DELETE ON t3 BEGIN
+      DELETE FROM t3 WHERE a = old.a + 1;
+    END;
+    INSERT INTO t3 VALUES(1, 2);
+    INSERT INTO t3 VALUES(2, 3);
+  }
+} {}
+do_test tkt2832-3.2 {
+  execsql { DELETE FROM t3 WHERE 1 }
+} {}
+
+finish_test
diff --git a/test/tkt2854.test b/test/tkt2854.test
new file mode 100644
index 0000000000000000000000000000000000000000..e5ef2da7c06d4cc921b6f500c9a10d7dc0d78460
--- /dev/null
+++ b/test/tkt2854.test
@@ -0,0 +1,139 @@
+# 2007 December 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# $Id: tkt2854.test,v 1.4 2009/03/16 13:19:36 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+db close
+
+ifcapable !shared_cache {
+  finish_test
+  return
+}
+
+set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
+
+# Open 3 database connections. Connection "db" and "db2" share a cache.
+# Connection "db3" has its own cache.
+#
+do_test tkt2854-1.1 {
+  sqlite3 db test.db
+  sqlite3 db2 test.db
+  sqlite3 db3 "file:test.db?cache=private" -uri 1
+
+  db eval {
+    CREATE TABLE abc(a, b, c);
+  }
+} {}
+
+# Check that an exclusive lock cannot be obtained if some other 
+# shared-cache connection has a read-lock on a table.
+#
+do_test tkt2854-1.2 {
+  execsql { 
+    BEGIN;
+    SELECT * FROM abc;
+  } db2
+} {}
+do_test tkt2854-1.3 {
+  catchsql { BEGIN EXCLUSIVE } db
+} {1 {database table is locked}}
+do_test tkt2854-1.4 {
+  execsql { SELECT * FROM abc } db3
+} {}
+do_test tkt2854-1.5 {
+  catchsql { INSERT INTO abc VALUES(1, 2, 3) } db3
+} {1 {database is locked}}
+do_test tkt2854-1.6 {
+  execsql { COMMIT } db2
+} {}
+
+# Check that an exclusive lock prevents other shared-cache users from
+# starting a transaction.
+#
+do_test tkt2854-1.7 {
+  set ::DB2 [sqlite3_connection_pointer db2]
+  set ::STMT1 [sqlite3_prepare $DB2 "SELECT * FROM abc" -1 TAIL]
+  set ::STMT2 [sqlite3_prepare $DB2 "BEGIN EXCLUSIVE" -1 TAIL]
+  set ::STMT3 [sqlite3_prepare $DB2 "BEGIN IMMEDIATE" -1 TAIL]
+  set ::STMT4 [sqlite3_prepare $DB2 "BEGIN" -1 TAIL]
+  set ::STMT5 [sqlite3_prepare $DB2 "COMMIT" -1 TAIL]
+  execsql { BEGIN EXCLUSIVE } db
+} {}
+do_test tkt2854-1.8 {
+  catchsql { BEGIN EXCLUSIVE } db2
+} {1 {database schema is locked: main}}
+do_test tkt2854-1.9 {
+  catchsql { BEGIN IMMEDIATE } db2
+} {1 {database schema is locked: main}}
+do_test tkt2854-1.10 {
+  # This fails because the schema of main cannot be verified.
+  catchsql { BEGIN } db2
+} {1 {database schema is locked: main}}
+
+# Check that an exclusive lock prevents other shared-cache users from
+# reading the database. Use stored statements so that the error occurs
+# at the b-tree level, not the schema level.
+#
+do_test tkt2854-1.11 {
+  list [sqlite3_step $::STMT1] [sqlite3_finalize $::STMT1]
+} {SQLITE_ERROR SQLITE_LOCKED}
+do_test tkt2854-1.12 {
+  list [sqlite3_step $::STMT2] [sqlite3_finalize $::STMT2]
+} {SQLITE_ERROR SQLITE_LOCKED}
+do_test tkt2854-1.13 {
+  list [sqlite3_step $::STMT3] [sqlite3_finalize $::STMT3]
+} {SQLITE_ERROR SQLITE_LOCKED}
+do_test tkt2854-1.14 {
+  # A regular "BEGIN" doesn't touch any databases. So it succeeds.
+  list [sqlite3_step $::STMT4] [sqlite3_finalize $::STMT4]
+} {SQLITE_DONE SQLITE_OK}
+do_test tkt2854-1.15 {
+  # As does a COMMIT.
+  list [sqlite3_step $::STMT5] [sqlite3_finalize $::STMT5]
+} {SQLITE_DONE SQLITE_OK}
+
+# Try to read the database using connection "db3" (which does not share
+# a cache with "db"). The database should be locked.
+do_test tkt2854-1.16 {
+  catchsql { SELECT * FROM abc } db3
+} {1 {database is locked}}
+do_test tkt2854-1.17 {
+  execsql { COMMIT } db
+} {}
+do_test tkt2854-1.18 {
+  execsql { SELECT * FROM abc } db2
+} {}
+
+# Check that if an attempt to obtain an exclusive lock fails because an
+# attached db cannot be locked, the internal exclusive flag used by
+# shared-cache users is correctly cleared.
+do_test tkt2854-1.19 {
+  forcedelete test2.db test2.db-journal
+  sqlite3 db4 test2.db
+  execsql { CREATE TABLE def(d, e, f) } db4
+  execsql { ATTACH 'test2.db' AS aux } db
+} {}
+do_test tkt2854-1.20 {
+  execsql {BEGIN IMMEDIATE} db4
+  catchsql {BEGIN EXCLUSIVE} db
+} {1 {database table is locked}}
+do_test tkt2854-1.21 {
+  execsql {SELECT * FROM abc} db2
+} {}
+
+db close
+db2 close
+db3 close
+db4 close
+sqlite3_enable_shared_cache $::enable_shared_cache
+finish_test
diff --git a/test/tkt2920.test b/test/tkt2920.test
new file mode 100644
index 0000000000000000000000000000000000000000..d76c05bab95fe3c2cafa2893a26c733882dd4ad5
--- /dev/null
+++ b/test/tkt2920.test
@@ -0,0 +1,78 @@
+# 2008 Feb 1
+#
+# The author disclaims copyright to this source code. In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file is to test that ticket #2920 is fixed.
+#
+# $Id: tkt2920.test,v 1.1 2008/02/02 02:48:52 drh Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Create a database file that is full.
+#
+do_test tkt2920-1.1 {
+  db eval {
+    PRAGMA page_size=1024;
+    PRAGMA max_page_count=40;
+    PRAGMA auto_vacuum=0;
+    CREATE TABLE filler (fill);
+  }
+  file size test.db
+} {2048}
+do_test tkt2920-1.2 {
+  db eval BEGIN
+  for {set i 0} {$i<34} {incr i} {
+    db eval {INSERT INTO filler VALUES(randomblob(1024))}
+  }
+  db eval COMMIT
+}  {}
+
+# Try to add a single new page to the full database.  We get
+# a disk full error.  But this does not corrupt the database.
+#
+do_test tkt2920-1.3 {
+  db eval BEGIN
+  catchsql {
+     INSERT INTO filler VALUES(randomblob(1024))
+  }
+} {1 {database or disk is full}}
+integrity_check tkt2920-1.4
+
+# Increase the maximum size of the database file by 1 page,
+# but then try to add a two-page record.  This also fails.
+#
+do_test tkt2920-1.5 {
+  db eval {PRAGMA max_page_count=41}
+  catchsql {
+     INSERT INTO filler VALUES(randomblob(2048))
+  }
+} {1 {database or disk is full}}
+integrity_check tkt2920-1.6
+
+# Increase the maximum size of the database by one more page.
+# This time the insert works.
+#
+do_test tkt2920-1.7 {
+  db eval {PRAGMA max_page_count=42}
+  catchsql {
+     INSERT INTO filler VALUES(randomblob(2048))
+  }
+} {0 {}}
+integrity_check tkt2920-1.8
+
+# The previous errors cancelled the transaction.
+#
+do_test tkt2920-1.9 {
+  catchsql {COMMIT}
+} {1 {cannot commit - no transaction is active}}
+
+finish_test
diff --git a/test/tkt2927.test b/test/tkt2927.test
new file mode 100644
index 0000000000000000000000000000000000000000..fc89a415389e0153f882c89a6de83b534675a31f
--- /dev/null
+++ b/test/tkt2927.test
@@ -0,0 +1,674 @@
+# 2008 Feb 6
+#
+# The author disclaims copyright to this source code. In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file is to test that ticket #2927 is fixed.
+#
+# $Id: tkt2927.test,v 1.4 2008/08/04 03:51:24 danielk1977 Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !compound {
+  finish_test
+  return
+}
+
+# Create a database.
+#
+do_test tkt2927-1.1 {
+  db eval {
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1,11);
+    INSERT INTO t1 VALUES(2,22);
+    INSERT INTO t1 VALUES(3,33);
+    INSERT INTO t1 VALUES(4,44);
+    INSERT INTO t1 VALUES(5,55);
+    SELECT * FROM t1;
+  }
+} {1 11 2 22 3 33 4 44 5 55}
+
+
+do_test tkt2927-2.1 {
+  db eval {
+    SELECT a, b FROM t1
+    UNION ALL
+    SELECT a, b FROM t1
+  }
+} {1 11 2 22 3 33 4 44 5 55 1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-2.2 {
+#set sqlite_addop_trace 1
+  db eval {
+    SELECT a, b FROM t1
+    UNION ALL
+    SELECT a, abs(b) FROM t1
+  }
+} {1 11 2 22 3 33 4 44 5 55 1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-2.3 {
+  db eval {
+    SELECT a, b FROM t1
+    UNION ALL
+    SELECT abs(a), b FROM t1
+  }
+} {1 11 2 22 3 33 4 44 5 55 1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-2.4 {
+  db eval {
+    SELECT a, b FROM t1
+    UNION ALL
+    SELECT abs(a), abs(b) FROM t1
+  }
+} {1 11 2 22 3 33 4 44 5 55 1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-2.5 {
+  db eval {
+    SELECT a, abs(b) FROM t1
+    UNION ALL
+    SELECT a, b FROM t1
+  }
+} {1 11 2 22 3 33 4 44 5 55 1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-2.6 {
+  db eval {
+    SELECT a, abs(b) FROM t1
+    UNION ALL
+    SELECT a, abs(b) FROM t1
+  }
+} {1 11 2 22 3 33 4 44 5 55 1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-2.7 {
+  db eval {
+    SELECT a, abs(b) FROM t1
+    UNION ALL
+    SELECT abs(a), b FROM t1
+  }
+} {1 11 2 22 3 33 4 44 5 55 1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-2.8 {
+  db eval {
+    SELECT a, abs(b) FROM t1
+    UNION ALL
+    SELECT abs(a), abs(b) FROM t1
+  }
+} {1 11 2 22 3 33 4 44 5 55 1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-2.9 {
+  db eval {
+    SELECT abs(a), b FROM t1
+    UNION ALL
+    SELECT a, b FROM t1
+  }
+} {1 11 2 22 3 33 4 44 5 55 1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-2.10 {
+  db eval {
+    SELECT abs(a), b FROM t1
+    UNION ALL
+    SELECT a, abs(b) FROM t1
+  }
+} {1 11 2 22 3 33 4 44 5 55 1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-2.11 {
+  db eval {
+    SELECT abs(a), b FROM t1
+    UNION ALL
+    SELECT abs(a), b FROM t1
+  }
+} {1 11 2 22 3 33 4 44 5 55 1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-2.12 {
+  db eval {
+    SELECT abs(a), b FROM t1
+    UNION ALL
+    SELECT abs(a), abs(b) FROM t1
+  }
+} {1 11 2 22 3 33 4 44 5 55 1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-2.13 {
+  db eval {
+    SELECT abs(a), abs(b) FROM t1
+    UNION ALL
+    SELECT a, b FROM t1
+  }
+} {1 11 2 22 3 33 4 44 5 55 1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-2.14 {
+  db eval {
+    SELECT abs(a), abs(b) FROM t1
+    UNION ALL
+    SELECT a, abs(b) FROM t1
+  }
+} {1 11 2 22 3 33 4 44 5 55 1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-2.15 {
+  db eval {
+    SELECT abs(a), abs(b) FROM t1
+    UNION ALL
+    SELECT abs(a), b FROM t1
+  }
+} {1 11 2 22 3 33 4 44 5 55 1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-2.16 {
+  db eval {
+    SELECT abs(a), abs(b) FROM t1
+    UNION ALL
+    SELECT abs(a), abs(b) FROM t1
+  }
+} {1 11 2 22 3 33 4 44 5 55 1 11 2 22 3 33 4 44 5 55}
+
+
+do_test tkt2927-3.1 {
+  db eval {
+    SELECT a, b FROM t1
+    UNION 
+    SELECT a, b FROM t1
+    ORDER BY 1
+  }
+} {1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-3.2 {
+  db eval {
+    SELECT a, b FROM t1
+    UNION 
+    SELECT a, abs(b) FROM t1
+    ORDER BY 1
+  }
+} {1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-3.3 {
+  db eval {
+    SELECT a, b FROM t1
+    UNION 
+    SELECT abs(a), b FROM t1
+    ORDER BY 1
+  }
+} {1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-3.4 {
+  db eval {
+    SELECT a, b FROM t1
+    UNION 
+    SELECT abs(a), abs(b) FROM t1
+    ORDER BY 1
+  }
+} {1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-3.5 {
+  db eval {
+    SELECT a, abs(b) FROM t1
+    UNION 
+    SELECT a, b FROM t1
+    ORDER BY 1
+  }
+} {1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-3.6 {
+  db eval {
+    SELECT a, abs(b) FROM t1
+    UNION 
+    SELECT a, abs(b) FROM t1
+    ORDER BY 1
+  }
+} {1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-3.7 {
+  db eval {
+    SELECT a, abs(b) FROM t1
+    UNION 
+    SELECT abs(a), b FROM t1
+    ORDER BY 1
+  }
+} {1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-3.8 {
+  db eval {
+    SELECT a, abs(b) FROM t1
+    UNION 
+    SELECT abs(a), abs(b) FROM t1
+    ORDER BY 1
+  }
+} {1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-3.9 {
+  db eval {
+    SELECT abs(a), b FROM t1
+    UNION 
+    SELECT a, b FROM t1
+    ORDER BY 1
+  }
+} {1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-3.10 {
+  db eval {
+    SELECT abs(a), b FROM t1
+    UNION 
+    SELECT a, abs(b) FROM t1
+    ORDER BY 1
+  }
+} {1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-3.11 {
+  db eval {
+    SELECT abs(a), b FROM t1
+    UNION 
+    SELECT abs(a), b FROM t1
+    ORDER BY 1
+  }
+} {1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-3.12 {
+  db eval {
+    SELECT abs(a), b FROM t1
+    UNION 
+    SELECT abs(a), abs(b) FROM t1
+    ORDER BY 1
+  }
+} {1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-3.13 {
+  db eval {
+    SELECT abs(a), abs(b) FROM t1
+    UNION 
+    SELECT a, b FROM t1
+    ORDER BY 1
+  }
+} {1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-3.14 {
+  db eval {
+    SELECT abs(a), abs(b) FROM t1
+    UNION 
+    SELECT a, abs(b) FROM t1
+    ORDER BY 1
+  }
+} {1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-3.15 {
+  db eval {
+    SELECT abs(a), abs(b) FROM t1
+    UNION 
+    SELECT abs(a), b FROM t1
+    ORDER BY 1
+  }
+} {1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-3.16 {
+  db eval {
+    SELECT abs(a), abs(b) FROM t1
+    UNION 
+    SELECT abs(a), abs(b) FROM t1
+    ORDER BY 1
+  }
+} {1 11 2 22 3 33 4 44 5 55}
+
+
+do_test tkt2927-4.1 {
+  db eval {
+    SELECT a+b, a-b, a, b FROM t1
+    UNION ALL
+    SELECT a+b, a-b, a, b FROM t1
+  }
+} {12 -10 1 11 24 -20 2 22 36 -30 3 33 48 -40 4 44 60 -50 5 55 12 -10 1 11 24 -20 2 22 36 -30 3 33 48 -40 4 44 60 -50 5 55}
+do_test tkt2927-4.2 {
+  db eval {
+    SELECT a+b, a-b, a, b FROM t1
+    UNION ALL
+    SELECT a+b, a-b, a, abs(b) FROM t1
+  }
+} {12 -10 1 11 24 -20 2 22 36 -30 3 33 48 -40 4 44 60 -50 5 55 12 -10 1 11 24 -20 2 22 36 -30 3 33 48 -40 4 44 60 -50 5 55}
+do_test tkt2927-4.3 {
+  db eval {
+    SELECT a+b, a-b, a, b FROM t1
+    UNION ALL
+    SELECT a+b, a-b, abs(a), b FROM t1
+  }
+} {12 -10 1 11 24 -20 2 22 36 -30 3 33 48 -40 4 44 60 -50 5 55 12 -10 1 11 24 -20 2 22 36 -30 3 33 48 -40 4 44 60 -50 5 55}
+do_test tkt2927-4.4 {
+  db eval {
+    SELECT a+b, a-b, a, b FROM t1
+    UNION ALL
+    SELECT a+b, a-b, abs(a), abs(b) FROM t1
+  }
+} {12 -10 1 11 24 -20 2 22 36 -30 3 33 48 -40 4 44 60 -50 5 55 12 -10 1 11 24 -20 2 22 36 -30 3 33 48 -40 4 44 60 -50 5 55}
+do_test tkt2927-4.5 {
+  db eval {
+    SELECT a+b, a-b, a, abs(b) FROM t1
+    UNION ALL
+    SELECT a+b, a-b, a, b FROM t1
+  }
+} {12 -10 1 11 24 -20 2 22 36 -30 3 33 48 -40 4 44 60 -50 5 55 12 -10 1 11 24 -20 2 22 36 -30 3 33 48 -40 4 44 60 -50 5 55}
+do_test tkt2927-4.6 {
+  db eval {
+    SELECT a+b, a-b, a, abs(b) FROM t1
+    UNION ALL
+    SELECT a+b, a-b, a, abs(b) FROM t1
+  }
+} {12 -10 1 11 24 -20 2 22 36 -30 3 33 48 -40 4 44 60 -50 5 55 12 -10 1 11 24 -20 2 22 36 -30 3 33 48 -40 4 44 60 -50 5 55}
+do_test tkt2927-4.7 {
+  db eval {
+    SELECT a+b, a-b, a, abs(b) FROM t1
+    UNION ALL
+    SELECT a+b, a-b, abs(a), b FROM t1
+  }
+} {12 -10 1 11 24 -20 2 22 36 -30 3 33 48 -40 4 44 60 -50 5 55 12 -10 1 11 24 -20 2 22 36 -30 3 33 48 -40 4 44 60 -50 5 55}
+do_test tkt2927-4.8 {
+  db eval {
+    SELECT a+b, a-b, a, abs(b) FROM t1
+    UNION ALL
+    SELECT a+b, a-b, abs(a), abs(b) FROM t1
+  }
+} {12 -10 1 11 24 -20 2 22 36 -30 3 33 48 -40 4 44 60 -50 5 55 12 -10 1 11 24 -20 2 22 36 -30 3 33 48 -40 4 44 60 -50 5 55}
+do_test tkt2927-4.9 {
+  db eval {
+    SELECT a+b, a-b, abs(a), b FROM t1
+    UNION ALL
+    SELECT a+b, a-b, a, b FROM t1
+  }
+} {12 -10 1 11 24 -20 2 22 36 -30 3 33 48 -40 4 44 60 -50 5 55 12 -10 1 11 24 -20 2 22 36 -30 3 33 48 -40 4 44 60 -50 5 55}
+do_test tkt2927-4.10 {
+  db eval {
+    SELECT a+b, a-b, abs(a), b FROM t1
+    UNION ALL
+    SELECT a+b, a-b, a, abs(b) FROM t1
+  }
+} {12 -10 1 11 24 -20 2 22 36 -30 3 33 48 -40 4 44 60 -50 5 55 12 -10 1 11 24 -20 2 22 36 -30 3 33 48 -40 4 44 60 -50 5 55}
+do_test tkt2927-4.11 {
+  db eval {
+    SELECT a+b, a-b, abs(a), b FROM t1
+    UNION ALL
+    SELECT a+b, a-b, abs(a), b FROM t1
+  }
+} {12 -10 1 11 24 -20 2 22 36 -30 3 33 48 -40 4 44 60 -50 5 55 12 -10 1 11 24 -20 2 22 36 -30 3 33 48 -40 4 44 60 -50 5 55}
+do_test tkt2927-4.12 {
+  db eval {
+    SELECT a+b, a-b, abs(a), b FROM t1
+    UNION ALL
+    SELECT a+b, a-b, abs(a), abs(b) FROM t1
+  }
+} {12 -10 1 11 24 -20 2 22 36 -30 3 33 48 -40 4 44 60 -50 5 55 12 -10 1 11 24 -20 2 22 36 -30 3 33 48 -40 4 44 60 -50 5 55}
+do_test tkt2927-4.13 {
+  db eval {
+    SELECT a+b, a-b, abs(a), abs(b) FROM t1
+    UNION ALL
+    SELECT a+b, a-b, a, b FROM t1
+  }
+} {12 -10 1 11 24 -20 2 22 36 -30 3 33 48 -40 4 44 60 -50 5 55 12 -10 1 11 24 -20 2 22 36 -30 3 33 48 -40 4 44 60 -50 5 55}
+do_test tkt2927-4.14 {
+  db eval {
+    SELECT a+b, a-b, abs(a), abs(b) FROM t1
+    UNION ALL
+    SELECT a+b, a-b, a, abs(b) FROM t1
+  }
+} {12 -10 1 11 24 -20 2 22 36 -30 3 33 48 -40 4 44 60 -50 5 55 12 -10 1 11 24 -20 2 22 36 -30 3 33 48 -40 4 44 60 -50 5 55}
+do_test tkt2927-4.15 {
+  db eval {
+    SELECT a+b, a-b, abs(a), abs(b) FROM t1
+    UNION ALL
+    SELECT a+b, a-b, abs(a), b FROM t1
+  }
+} {12 -10 1 11 24 -20 2 22 36 -30 3 33 48 -40 4 44 60 -50 5 55 12 -10 1 11 24 -20 2 22 36 -30 3 33 48 -40 4 44 60 -50 5 55}
+do_test tkt2927-4.16 {
+  db eval {
+    SELECT a+b, a-b, abs(a), abs(b) FROM t1
+    UNION ALL
+    SELECT a+b, a-b, abs(a), abs(b) FROM t1
+  }
+} {12 -10 1 11 24 -20 2 22 36 -30 3 33 48 -40 4 44 60 -50 5 55 12 -10 1 11 24 -20 2 22 36 -30 3 33 48 -40 4 44 60 -50 5 55}
+
+
+do_test tkt2927-5.1 {
+  db eval {
+    SELECT a, b FROM t1
+    EXCEPT
+    SELECT a, b FROM t1
+  }
+} {}
+do_test tkt2927-5.2 {
+  db eval {
+    SELECT a, b FROM t1
+    EXCEPT
+    SELECT a, abs(b) FROM t1
+  }
+} {}
+do_test tkt2927-5.3 {
+  db eval {
+    SELECT a, b FROM t1
+    EXCEPT
+    SELECT abs(a), b FROM t1
+  }
+} {}
+do_test tkt2927-5.4 {
+  db eval {
+    SELECT a, b FROM t1
+    EXCEPT
+    SELECT abs(a), abs(b) FROM t1
+  }
+} {}
+do_test tkt2927-5.5 {
+  db eval {
+    SELECT a, abs(b) FROM t1
+    EXCEPT
+    SELECT a, b FROM t1
+  }
+} {}
+do_test tkt2927-5.6 {
+  db eval {
+    SELECT a, abs(b) FROM t1
+    EXCEPT
+    SELECT a, abs(b) FROM t1
+  }
+} {}
+do_test tkt2927-5.7 {
+  db eval {
+    SELECT a, abs(b) FROM t1
+    EXCEPT
+    SELECT abs(a), b FROM t1
+  }
+} {}
+do_test tkt2927-5.8 {
+  db eval {
+    SELECT a, abs(b) FROM t1
+    EXCEPT
+    SELECT abs(a), abs(b) FROM t1
+  }
+} {}
+do_test tkt2927-5.9 {
+  db eval {
+    SELECT abs(a), b FROM t1
+    EXCEPT
+    SELECT a, b FROM t1
+  }
+} {}
+do_test tkt2927-5.10 {
+  db eval {
+    SELECT abs(a), b FROM t1
+    EXCEPT
+    SELECT a, abs(b) FROM t1
+  }
+} {}
+do_test tkt2927-5.11 {
+  db eval {
+    SELECT abs(a), b FROM t1
+    EXCEPT
+    SELECT abs(a), b FROM t1
+  }
+} {}
+do_test tkt2927-5.12 {
+  db eval {
+    SELECT abs(a), b FROM t1
+    EXCEPT
+    SELECT abs(a), abs(b) FROM t1
+  }
+} {}
+do_test tkt2927-5.13 {
+  db eval {
+    SELECT abs(a), abs(b) FROM t1
+    EXCEPT
+    SELECT a, b FROM t1
+  }
+} {}
+do_test tkt2927-5.14 {
+  db eval {
+    SELECT abs(a), abs(b) FROM t1
+    EXCEPT
+    SELECT a, abs(b) FROM t1
+  }
+} {}
+do_test tkt2927-5.15 {
+  db eval {
+    SELECT abs(a), abs(b) FROM t1
+    EXCEPT
+    SELECT abs(a), b FROM t1
+  }
+} {}
+do_test tkt2927-5.16 {
+  db eval {
+    SELECT abs(a), abs(b) FROM t1
+    EXCEPT
+    SELECT abs(a), abs(b) FROM t1
+  }
+} {}
+
+
+do_test tkt2927-6.1 {
+  db eval {
+    SELECT a, b FROM t1
+    INTERSECT
+    SELECT a, b FROM t1
+    ORDER BY 1
+  }
+} {1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-6.2 {
+  db eval {
+    SELECT a, b FROM t1
+    INTERSECT
+    SELECT a, abs(b) FROM t1
+    ORDER BY 1
+  }
+} {1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-6.3 {
+  db eval {
+    SELECT a, b FROM t1
+    INTERSECT
+    SELECT abs(a), b FROM t1
+    ORDER BY 1
+  }
+} {1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-6.4 {
+  db eval {
+    SELECT a, b FROM t1
+    INTERSECT
+    SELECT abs(a), abs(b) FROM t1
+    ORDER BY 1
+  }
+} {1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-6.5 {
+  db eval {
+    SELECT a, abs(b) FROM t1
+    INTERSECT
+    SELECT a, b FROM t1
+    ORDER BY 1
+  }
+} {1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-6.6 {
+  db eval {
+    SELECT a, abs(b) FROM t1
+    INTERSECT
+    SELECT a, abs(b) FROM t1
+    ORDER BY 1
+  }
+} {1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-6.7 {
+  db eval {
+    SELECT a, abs(b) FROM t1
+    INTERSECT
+    SELECT abs(a), b FROM t1
+    ORDER BY 1
+  }
+} {1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-6.8 {
+  db eval {
+    SELECT a, abs(b) FROM t1
+    INTERSECT
+    SELECT abs(a), abs(b) FROM t1
+    ORDER BY 1
+  }
+} {1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-6.9 {
+  db eval {
+    SELECT abs(a), b FROM t1
+    INTERSECT
+    SELECT a, b FROM t1
+    ORDER BY 1
+  }
+} {1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-6.10 {
+  db eval {
+    SELECT abs(a), b FROM t1
+    INTERSECT
+    SELECT a, abs(b) FROM t1
+    ORDER BY 1
+  }
+} {1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-6.11 {
+  db eval {
+    SELECT abs(a), b FROM t1
+    INTERSECT
+    SELECT abs(a), b FROM t1
+    ORDER BY 1
+  }
+} {1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-6.12 {
+  db eval {
+    SELECT abs(a), b FROM t1
+    INTERSECT
+    SELECT abs(a), abs(b) FROM t1
+    ORDER BY 1
+  }
+} {1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-6.13 {
+  db eval {
+    SELECT abs(a), abs(b) FROM t1
+    INTERSECT
+    SELECT a, b FROM t1
+    ORDER BY 1
+  }
+} {1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-6.14 {
+  db eval {
+    SELECT abs(a), abs(b) FROM t1
+    INTERSECT
+    SELECT a, abs(b) FROM t1
+    ORDER BY 1
+  }
+} {1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-6.15 {
+  db eval {
+    SELECT abs(a), abs(b) FROM t1
+    INTERSECT
+    SELECT abs(a), b FROM t1
+    ORDER BY 1
+  }
+} {1 11 2 22 3 33 4 44 5 55}
+do_test tkt2927-6.16 {
+  db eval {
+    SELECT abs(a), abs(b) FROM t1
+    INTERSECT
+    SELECT abs(a), abs(b) FROM t1
+    ORDER BY 1
+  }
+} {1 11 2 22 3 33 4 44 5 55}
+
+# Ticket #3092 is the same bug.  But another test case never hurts.
+#
+do_test tkt2927-7.1 {
+  db eval {
+    CREATE TABLE host (
+     hostname text not null primary key,
+     consoleHost text,
+     consolePort text
+    );
+    INSERT INTO "host" VALUES('aald04','aalp03','4');
+    INSERT INTO "host" VALUES('aald17','aalp01','1');
+    CREATE VIEW consolemap1a as
+      select hostname, consolehost, '/dev/cuaD0.' || (consoleport-1) consoleport
+        from host where consolehost='aalp01';
+    CREATE VIEW consolemap1b as
+      select hostname hostname, consolehost consolehost, '/dev/cuaD' ||
+             substr('01',1+((consoleport-1)/16),1) ||
+             substr('0123456789abcdef',1+((consoleport-1)%16),1) consoleport
+        from host where consolehost='aalp03';
+    CREATE VIEW consolemap1 as
+      select * from consolemap1a
+      union
+      select * from consolemap1b;
+    SELECT * from consolemap1b;
+  }
+} {aald04 aalp03 /dev/cuaD03}
+do_test tkt2927-7.2 {
+  db eval {
+    SELECT * FROM consolemap1
+  }
+} {aald04 aalp03 /dev/cuaD03 aald17 aalp01 /dev/cuaD0.0}
+
+finish_test
diff --git a/test/tkt2942.test b/test/tkt2942.test
new file mode 100644
index 0000000000000000000000000000000000000000..a7b861c75cd167f31eafd7c171276065e47df284
--- /dev/null
+++ b/test/tkt2942.test
@@ -0,0 +1,62 @@
+# 2008 February 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Ticket #2942.  
+#
+# Queries of the form:
+#
+#     SELECT group_concat(x) FROM (SELECT * FROM table ORDER BY 1);
+#
+# The ORDER BY would be dropped by the query flattener.  This used
+# to not matter because aggregate functions sum(), min(), max(), avg(),
+# and so forth give the same result regardless of the order of inputs.
+# But with the addition of the group_concat() function, suddenly the
+# order does matter.
+#
+# $Id: tkt2942.test,v 1.1 2008/02/15 14:33:04 drh Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !subquery {
+  finish_test
+  return
+}
+
+do_test tkt2942.1 {
+  execsql {
+    create table t1(num int);
+    insert into t1 values (2);
+    insert into t1 values (1);
+    insert into t1 values (3);
+    insert into t1 values (4);
+    SELECT group_concat(num) FROM (SELECT num FROM t1 ORDER BY num DESC);
+  }
+} {4,3,2,1}
+do_test tkt2942.2 {
+  execsql {
+    SELECT group_concat(num) FROM (SELECT num FROM t1 ORDER BY num);
+  }
+} {1,2,3,4}
+do_test tkt2942.3 {
+  execsql {
+    SELECT group_concat(num) FROM (SELECT num FROM t1);
+  }
+} {2,1,3,4}
+do_test tkt2942.4 {
+  execsql {
+    SELECT group_concat(num) FROM (SELECT num FROM t1 ORDER BY rowid DESC);
+  }
+} {4,3,1,2}
+
+
+finish_test
diff --git a/test/tkt3080.test b/test/tkt3080.test
new file mode 100644
index 0000000000000000000000000000000000000000..bfccaa9b84b17db4fbdd3badb20a439c458a4063
--- /dev/null
+++ b/test/tkt3080.test
@@ -0,0 +1,77 @@
+# 2008 April 27
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Ticket #3080
+#
+# Make sure that application-defined functions are able to recursively
+# invoke SQL statements that create and drop virtual tables.
+#
+# $Id: tkt3080.test,v 1.2 2008/11/05 16:37:35 drh Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt3080.1 {
+  db function execsql execsql
+  db eval {
+    SELECT execsql('CREATE TABLE t1(x)');
+  }
+  execsql {SELECT name FROM sqlite_master}
+} {t1}
+do_test tkt3080.2 {
+  db eval {
+    INSERT INTO t1 VALUES('CREATE TABLE t2(y);');
+    SELECT execsql(x) FROM t1;
+  }
+  db eval {
+    SELECT name FROM sqlite_master;
+  }
+} {t1 t2}
+do_test tkt3080.3 {
+  execsql {
+    INSERT INTO t1 VALUES('CREATE TABLE t3(z); DROP TABLE t3;');
+  }
+  catchsql {
+    SELECT execsql(x) FROM t1 WHERE rowid=2;
+  }
+} {1 {database table is locked}}
+do_test tkt3080.4 {
+  db eval {
+    SELECT name FROM sqlite_master;
+  }
+} {t1 t2 t3}
+
+ifcapable vtab {
+  register_echo_module [sqlite3_connection_pointer db]
+  do_test tkt3080.10 {
+     set sql {
+       CREATE VIRTUAL TABLE t4 USING echo(t2);
+       INSERT INTO t4 VALUES(123);
+       DROP TABLE t4;
+     }
+     execsql {
+       DELETE FROM t1;
+       INSERT INTO t1 VALUES($sql);
+     }
+     db eval {
+       SELECT execsql(x) FROM t1
+     }
+     execsql {SELECT name FROM sqlite_master}
+  } {t1 t2 t3}
+  do_test tkt3080.11 {
+     execsql {SELECT * FROM t2}
+  } {123}
+}
+  
+
+
+finish_test
diff --git a/test/tkt3093.test b/test/tkt3093.test
new file mode 100644
index 0000000000000000000000000000000000000000..3be46d15cfec7fc4aa968fa52c6620186e431545
--- /dev/null
+++ b/test/tkt3093.test
@@ -0,0 +1,86 @@
+# 2008 May 2
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Ticket #3093
+#
+# Verify that a busy callback waiting on a reserved lock resolves
+# once the lock clears.
+#
+# $Id: tkt3093.test,v 1.2 2008/05/02 14:23:55 drh Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Set up a test database
+#
+do_test tkt3093.1 {
+  db eval {
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(1);
+    SELECT * FROM t1
+  }
+} {1}
+
+# Establish a separate, independent connection to that database.
+#
+do_test tkt3093.2 {
+  catch {sqlite3_enable_shared_cache 0}
+  sqlite3 db2 test.db
+  db2 eval {
+    SELECT * FROM t1
+  }
+} {1}
+
+# Make sure that clearing a lock allows a pending request for
+# a reserved lock to continue.
+#
+do_test tkt3093.3 {
+  # This will be the busy callback for connection db2.  On the first
+  # busy callback, commit the transaction in db.  This should clear
+  # the lock so that there should not be a second callback.  If the
+  # busy handler is called a second time, then fail so that we get
+  # timeout.
+  proc busy_callback {cnt} {
+    if {$cnt==0} {
+      db eval COMMIT
+      return 0
+    } else {
+      return 1
+    }
+  }
+  db2 busy ::busy_callback
+
+  # Start a write transaction on db.
+  db eval {
+     BEGIN;
+     INSERT INTO t1 VALUES(2);
+  }
+
+  # Attempt to modify the database on db2
+  catchsql {
+     UPDATE t1 SET x=x+1;
+  } db2
+} {0 {}}
+
+# Verify that everything worked as expected.  The db transaction should
+# have gone first and added entry 2.  Then the db2 transaction would have
+# run and added one to each entry.
+#
+do_test tkt3093.4 {
+  db eval {SELECT * FROM t1}
+} {2 3}
+do_test tkt3093.5 {
+  db2 eval {SELECT * FROM t1}
+} {2 3}
+db2 close
+
+finish_test
diff --git a/test/tkt3121.test b/test/tkt3121.test
new file mode 100644
index 0000000000000000000000000000000000000000..2e8fdbb629870809f7d10f4fffec830df9d278a8
--- /dev/null
+++ b/test/tkt3121.test
@@ -0,0 +1,50 @@
+# 2008 May 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# $Id: tkt3121.test,v 1.2 2008/07/12 14:52:21 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+# Register the module
+register_echo_module [sqlite3_connection_pointer db]
+
+do_test vtabD-1.1 {
+  execsql {
+    PRAGMA encoding = 'utf16';
+
+    CREATE TABLE r1(field);
+    CREATE TABLE r2(col PRIMARY KEY, descr);
+
+    INSERT INTO r1 VALUES('abcd');
+    INSERT INTO r2 VALUES('abcd', 'A nice description');
+    INSERT INTO r2 VALUES('efgh', 'Another description');
+
+    CREATE VIRTUAL TABLE t1 USING echo(r1);
+    CREATE VIRTUAL TABLE t2 USING echo(r2);
+  }
+} {}
+
+do_test vtabD-1.2 {
+  execsql {
+    select
+      t1.field as Field,
+      t2.descr as Descr
+    from t1 inner join t2 on t1.field = t2.col order by t1.field
+  }
+} {abcd {A nice description}}
+
+finish_test
diff --git a/test/tkt3201.test b/test/tkt3201.test
new file mode 100644
index 0000000000000000000000000000000000000000..47c5ebb5fd6fb46ff76bf41b6c6e8a4f1260afed
--- /dev/null
+++ b/test/tkt3201.test
@@ -0,0 +1,105 @@
+# 2008 July 4
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. 
+# Specifically, it tests that bug #3201 has been fixed.
+#
+# $Id: tkt3201.test,v 1.3 2008/07/12 14:52:21 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt3201-1 {
+  execsql {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b TEXT);
+    INSERT INTO t1 VALUES(1, 'one');
+    INSERT INTO t1 VALUES(2, 'two');
+  }
+} {}
+
+do_test tkt3201-2 {
+  execsql {
+    SELECT l.a, r.a FROM t1 AS l, t1 AS r WHERE l.a < r.a;
+  }
+} {1 2}
+
+do_test tkt3201-3 {
+  execsql {
+    CREATE TABLE t2(a INTEGER PRIMARY KEY, b TEXT);
+    INSERT INTO t2 VALUES(2, 'two');
+  }
+  execsql {
+    SELECT l.a, r.a FROM t1 AS l, t2 AS r WHERE l.a < r.a;
+  }
+} {1 2}
+
+do_test tkt3201-4 {
+  execsql {
+    DELETE FROM t1 WHERE a = 2;
+  }
+  execsql {
+    SELECT l.a, r.a FROM t1 AS l, t2 AS r WHERE l.a < r.a;
+  }
+} {1 2}
+
+do_test tkt3201-5 {
+  execsql {
+    DELETE FROM t1 WHERE a = 2;
+  }
+  execsql {
+    SELECT t1.a, t1.b, t2.a, t2.b FROM t1, t2;
+  }
+} {1 one 2 two}
+
+do_test tkt3201-6 {
+  execsql {
+    CREATE TABLE t3(c INTEGER PRIMARY KEY, d TEXT);
+    INSERT INTO t3 VALUES(2, 'two');
+  }
+  execsql { SELECT a, b, c, d FROM t1, t3 }
+} {1 one 2 two}
+
+do_test tkt3201-7 {
+  execsql { SELECT a, b, c, d FROM t1, t3 WHERE a < c }
+} {1 one 2 two}
+
+# Ticket [efc02f977919]
+#
+ifcapable trigger {
+  do_test tkt3201-4.0 {
+    db eval {
+     CREATE TABLE t4(x);
+     CREATE TABLE t4_log(x);
+     CREATE TRIGGER r4_1 AFTER INSERT ON t4 WHEN new.x=1 BEGIN
+       INSERT INTO t4_log(x) VALUES(new.x);
+     END;
+     CREATE TRIGGER r4_2 AFTER INSERT ON t4 WHEN new.x=2 BEGIN
+       INSERT INTO t4_log(x) VALUES(new.x);
+     END;
+     CREATE TRIGGER r4_3 AFTER INSERT ON t4 WHEN new.x=3 BEGIN
+       INSERT INTO t4_log(x) VALUES(new.x);
+     END;
+     CREATE TRIGGER r4_4 AFTER INSERT ON t4 WHEN new.x=4 BEGIN
+       INSERT INTO t4_log(x) VALUES(new.x);
+     END;
+     INSERT INTO t4 VALUES(1);
+     INSERT INTO t4 VALUES(2);
+     INSERT INTO t4 VALUES(3);
+     INSERT INTO t4 VALUES(4);
+     SELECT * FROM t4_log;
+    }
+  } {1 2 3 4}
+}
+
+
+
+
+
+finish_test
diff --git a/test/tkt3292.test b/test/tkt3292.test
new file mode 100644
index 0000000000000000000000000000000000000000..717a29c9a02e8a2273bf83f0cc448c8667d13025
--- /dev/null
+++ b/test/tkt3292.test
@@ -0,0 +1,61 @@
+# 2008 August 12
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. 
+# Specifically, it tests the behavior of the sqlite3VdbeRecordCompare()
+# routine in cases where the rowid is 0 or 1 in file format 4
+# (meaning that the rowid has type code 8 or 9 with zero bytes of
+# data).  Ticket #3292.
+#
+# $Id: tkt3292.test,v 1.1 2008/08/13 14:07:41 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt3292-1.1 {
+  sqlite3_db_config db LEGACY_FILE_FORMAT 0
+  execsql {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b INT);
+    INSERT INTO t1 VALUES(0, 1);
+    INSERT INTO t1 VALUES(1, 1);
+    INSERT INTO t1 VALUES(2, 1);
+    CREATE INDEX i1 ON t1(b);
+    SELECT * FROM t1 WHERE b>=1;
+  }
+} {0 1 1 1 2 1}
+do_test tkt3292-1.2 {
+  execsql {
+    INSERT INTO t1 VALUES(3, 0);
+    INSERT INTO t1 VALUES(4, 2);
+    SELECT * FROM t1 WHERE b>=1;
+  }
+} {0 1 1 1 2 1 4 2}
+
+
+do_test tkt3292-2.1 {
+  execsql {
+    CREATE TABLE t2(a INTEGER PRIMARY KEY, b, c, d);
+    INSERT INTO t2 VALUES(0, 1, 'hello', x'012345');
+    INSERT INTO t2 VALUES(1, 1, 'hello', x'012345');
+    INSERT INTO t2 VALUES(2, 1, 'hello', x'012345');
+    CREATE INDEX i2 ON t2(b,c,d);
+    SELECT a FROM t2 WHERE b=1 AND c='hello' AND d>=x'012345';
+  }
+} {0 1 2}
+do_test tkt3292-2.2 {
+  execsql {
+    INSERT INTO t2 VALUES(3, 1, 'hello', x'012344');
+    INSERT INTO t2 VALUES(4, 1, 'hello', x'012346');
+    SELECT a FROM t2 WHERE b=1 AND c='hello' AND d>=x'012345';
+  }
+} {0 1 2 4}
+
+
+finish_test
diff --git a/test/tkt3298.test b/test/tkt3298.test
new file mode 100644
index 0000000000000000000000000000000000000000..0e546f7e696411c2c37103a37f05dfbd39fc2d52
--- /dev/null
+++ b/test/tkt3298.test
@@ -0,0 +1,80 @@
+# 2008 August 12
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+# This file tests changes to the name resolution logic that occurred
+# in august of 2008 and where associated with tickets #3298 and #3301
+#
+# $Id: tkt3298.test,v 1.3 2009/04/07 14:14:23 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !trigger { finish_test ; return }
+
+do_test tkt3298-1.1 {
+  execsql {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b INT);
+    INSERT INTO t1 VALUES(0, 1);
+    INSERT INTO t1 VALUES(1, 1);
+    INSERT INTO t1 VALUES(2, 1);
+    CREATE VIEW v1 AS SELECT a AS x, b+1 AS y FROM t1;
+    CREATE TRIGGER r1 INSTEAD OF UPDATE ON v1
+      BEGIN
+        UPDATE t1 SET b=new.y-1 WHERE a=new.x;
+      END;
+    CREATE TRIGGER r2 INSTEAD OF DELETE ON v1
+      BEGIN
+        DELETE FROM t1 WHERE a=old.x;
+      END;
+    SELECT * FROM v1 ORDER BY x;
+  }
+} {0 2 1 2 2 2}
+do_test tkt3298-1.2 {
+  execsql {
+    UPDATE v1 SET y=3 WHERE x=0;
+    SELECT * FROM v1 ORDER by x;
+  }
+} {0 3 1 2 2 2}
+do_test tkt3298-1.3 {
+  execsql {
+    UPDATE v1 SET y=4 WHERE v1.x=2;
+    SELECT * FROM v1 ORDER by x;
+  }
+} {0 3 1 2 2 4}
+do_test tkt3298-1.4 {
+  execsql {
+    DELETE FROM v1 WHERE x=1;
+    SELECT * FROM v1 ORDER BY x;
+  }
+} {0 3 2 4}
+do_test tkt3298-1.5 {
+  execsql {
+    DELETE FROM v1 WHERE v1.x=2;
+    SELECT * FROM v1 ORDER BY x;
+  }
+} {0 3}
+
+# Ticket #3301
+#
+do_test tkt3298-2.1 {
+  execsql {
+    CREATE TABLE t2(p,q);
+    INSERT INTO t2 VALUES(1,11);
+    INSERT INTO t2 VALUES(2,22);
+    CREATE TABLE t3(x,y);
+    INSERT INTO t3 VALUES(1,'one');
+
+    SELECT *, (SELECT z FROM (SELECT y AS z FROM t3 WHERE x=t1.a+1) ) FROM t1;
+  }
+} {0 2 one}
+
+
+finish_test
diff --git a/test/tkt3334.test b/test/tkt3334.test
new file mode 100644
index 0000000000000000000000000000000000000000..3527932de3e77e860d46c703b5d8fa6b92c531bf
--- /dev/null
+++ b/test/tkt3334.test
@@ -0,0 +1,86 @@
+# 2008 August 26
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements regression tests for SQLite library. 
+# Specifically, it tests that bug #3334 has been fixed by the
+# addition of restriction (19) to the subquery flattener optimization.
+#
+# $Id: tkt3334.test,v 1.1 2008/08/26 12:56:14 drh Exp $
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt3334-1.0 {
+  execsql {
+    CREATE TABLE t1(a,b);
+    INSERT INTO t1 VALUES(1,934);
+    INSERT INTO t1 VALUES(2,221);
+    INSERT INTO t1 VALUES(1,372);
+    INSERT INTO t1 VALUES(3,552);
+    INSERT INTO t1 VALUES(1,719);
+    INSERT INTO t1 VALUES(4,102);
+    SELECT * FROM t1 ORDER BY b;
+  }
+} {4 102 2 221 1 372 3 552 1 719 1 934}
+
+do_test tkt3334-1.1 {
+  execsql {
+    SELECT a FROM (SELECT a FROM t1 ORDER BY b LIMIT 2) WHERE a=1;
+  }
+} {}
+do_test tkt3334-1.2 {
+  execsql {
+    SELECT count(*) FROM (SELECT a FROM t1 ORDER BY b LIMIT 2) WHERE a=1;
+  }
+} {0}
+do_test tkt3334-1.3 {
+  execsql {
+    SELECT a FROM (SELECT a FROM t1 ORDER BY b LIMIT 3) WHERE a=1;
+  }
+} {1}
+do_test tkt3334-1.4 {
+  execsql {
+    SELECT count(*) FROM (SELECT a FROM t1 ORDER BY b LIMIT 3) WHERE a=1;
+  }
+} {1}
+do_test tkt3334-1.5 {
+  execsql {
+    SELECT a FROM (SELECT a FROM t1 ORDER BY b LIMIT 99) WHERE a=1;
+  }
+} {1 1 1}
+do_test tkt3334-1.6 {
+  execsql {
+    SELECT count(*) FROM (SELECT a FROM t1 ORDER BY b LIMIT 99) WHERE a=1;
+  }
+} {3}
+do_test tkt3334-1.7 {
+  execsql {
+    SELECT a FROM (SELECT a FROM t1 ORDER BY b) WHERE a=1;
+  }
+} {1 1 1}
+do_test tkt3334-1.8 {
+  execsql {
+    SELECT count(*) FROM (SELECT a FROM t1 ORDER BY b) WHERE a=1;
+  }
+} {3}
+do_test tkt3334-1.9 {
+  execsql {
+    SELECT a FROM (SELECT a FROM t1) WHERE a=1;
+  }
+} {1 1 1}
+do_test tkt3334-1.10 {
+  execsql {
+    SELECT count(*) FROM (SELECT a FROM t1) WHERE a=1;
+  }
+} {3}
+
+finish_test
diff --git a/test/tkt3346.test b/test/tkt3346.test
new file mode 100644
index 0000000000000000000000000000000000000000..806e5e9c70b0e0df63590d57313f8d1449d2a732
--- /dev/null
+++ b/test/tkt3346.test
@@ -0,0 +1,67 @@
+# 2008 September 1
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the fix for ticket #3346
+#
+# $Id: tkt3346.test,v 1.3 2008/12/09 13:12:57 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt3346-1.1 {
+  db eval {
+   CREATE TABLE t1(a,b);
+   INSERT INTO t1 VALUES(2,'bob');
+   INSERT INTO t1 VALUES(1,'alice');
+   INSERT INTO t1 VALUES(3,'claire');
+   SELECT *, ( SELECT y FROM (SELECT x.b='alice' AS y) )
+     FROM ( SELECT * FROM t1 ) AS x;
+  }
+} {2 bob 0 1 alice 1 3 claire 0}
+do_test tkt3346-1.2 {
+  db eval {
+    SELECT b FROM (SELECT * FROM t1) AS x
+     WHERE (SELECT y FROM (SELECT x.b='alice' AS y))=0
+  }
+} {bob claire}
+do_test tkt3346-1.3 {
+  db eval {
+    SELECT b FROM (SELECT * FROM t1 ORDER BY a) AS x
+     WHERE (SELECT y FROM (SELECT a||b y FROM t1 WHERE t1.b=x.b))=(x.a||x.b)
+  }
+} {alice bob claire}
+do_test tkt3346-1.4 {
+  db eval {
+    SELECT b FROM (SELECT * FROM t1 ORDER BY a) AS x
+     WHERE (SELECT y FROM (SELECT a||b y FROM t1 WHERE t1.b=x.b))=('2'||x.b)
+  }
+} {bob}
+
+# Ticket #3530
+#
+# As shown by ticket #3346 above (see also ticket #3298) it is important
+# that a subquery in the result-set be able to look up through multiple
+# FROM levels in order to view tables in the FROM clause at the top level.
+#
+# But ticket #3530 shows us that a subquery in the FROM clause should not
+# be able to look up to higher levels:
+#
+do_test tkt3346-2.1 {
+  catchsql {
+    CREATE TABLE t2(a);
+    INSERT INTO t2 VALUES(1);
+    
+    SELECT * FROM (SELECT * FROM t1 WHERE 1=x.a) AS x;
+  }
+} {1 {no such column: x.a}}
+
+finish_test
diff --git a/test/tkt3357.test b/test/tkt3357.test
new file mode 100644
index 0000000000000000000000000000000000000000..c3e2a2bc92bdd87adb23edc48032b3aeacc3ca40
--- /dev/null
+++ b/test/tkt3357.test
@@ -0,0 +1,64 @@
+# 2008 September 1
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the fix for ticket #3357.
+#
+# $Id: tkt3357.test,v 1.2 2009/06/05 17:09:12 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt3357-1.1 {
+  execsql {
+    create table a(id integer primary key, b_id integer, myvalue varchar);
+    create table b(id integer primary key, bvalue varchar);
+    insert into a(b_id, myvalue) values(1,'Test');
+    insert into a(b_id, myvalue) values(1,'Test2');
+    insert into a(b_id, myvalue) values(1,'Test3');
+    insert into b(bvalue) values('btest');
+  }
+} {}
+
+do_test tkt3357-1.2 {
+  execsql {
+    SELECT cc.id, cc.b_id, cc.myvalue, dd.bvalue 
+    FROM (
+      SELECT DISTINCT a.id, a.b_id, a.myvalue FROM a
+      INNER JOIN b ON a.b_id = b.id WHERE b.bvalue = 'btest'
+    ) cc
+    LEFT OUTER JOIN b dd ON cc.b_id = dd.id
+  }
+} {1 1 Test btest 2 1 Test2 btest 3 1 Test3 btest}
+
+do_test tkt3357-1.3 {
+  execsql {
+    SELECT cc.id, cc.b_id, cc.myvalue
+    FROM (
+      SELECT a.id, a.b_id, a.myvalue 
+      FROM a, b WHERE a.b_id = b.id
+    ) cc
+    LEFT OUTER JOIN b dd ON cc.b_id = dd.id
+  }
+} {1 1 Test 2 1 Test2 3 1 Test3}
+
+do_test tkt3357-1.4 {
+  execsql {
+    SELECT cc.id, cc.b_id, cc.myvalue
+    FROM (
+      SELECT DISTINCT a.id, a.b_id, a.myvalue 
+      FROM a, b WHERE a.b_id = b.id
+    ) cc
+    LEFT OUTER JOIN b dd ON cc.b_id = dd.id
+  }
+} {1 1 Test 2 1 Test2 3 1 Test3}
+
+finish_test
diff --git a/test/tkt3419.test b/test/tkt3419.test
new file mode 100644
index 0000000000000000000000000000000000000000..4cfd02357c58fec9ce8a64716519af3333d9c058
--- /dev/null
+++ b/test/tkt3419.test
@@ -0,0 +1,73 @@
+# 2008 October 06
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the fix for ticket #3419.
+# Ticket #3419 is really a duplication of #3408 and had already
+# been fixed by the time it was reported.  But it never hurts to
+# add new test cases.
+#
+# $Id: tkt3419.test,v 1.1 2008/10/06 15:31:13 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt3419-1.1 {
+  execsql {
+    create table a(id integer primary key);
+    create table b(id integer primary key, a_id integer);
+    create table c(id integer primary key, b_id integer);
+  
+    insert into a values (1);
+    insert into a values (2);
+  
+    insert into b values (3, 1);
+    insert into b values (4, 1);
+    insert into b values (5, 1);
+    insert into b values (6, 1);
+    insert into b values (9, 2);
+  
+    insert into c values (4, 3);
+    insert into c values (5, 5);
+    insert into c values (6, 4);
+    insert into c values (7, 6);
+    insert into c values (8, 9);
+  
+    select * FROM a, b, c WHERE a.id=2 AND b.a_id = a.id AND b.id=c.b_id;
+  }
+} {2 9 2 8 9}
+do_test tkt3419-1.2 {
+  execsql {
+    select * FROM a, c, b WHERE a.id=2 AND b.a_id = a.id AND b.id=c.b_id;
+  }
+} {2 8 9 9 2}
+do_test tkt3419-1.3 {
+  execsql {
+    select * FROM b, a, c WHERE a.id=2 AND b.a_id = a.id AND b.id=c.b_id;
+  }
+} {9 2 2 8 9}
+do_test tkt3419-1.4 {
+  execsql {
+    select * FROM b, c, a WHERE a.id=2 AND b.a_id = a.id AND b.id=c.b_id;
+  }
+} {9 2 8 9 2}
+do_test tkt3419-1.5 {
+  execsql {
+    select * FROM c, a, b WHERE a.id=2 AND b.a_id = a.id AND b.id=c.b_id;
+  }
+} {8 9 2 9 2}
+do_test tkt3419-1.6 {
+  execsql {
+    select * FROM c, b, a WHERE a.id=2 AND b.a_id = a.id AND b.id=c.b_id;
+  }
+} {8 9 9 2 2}
+
+finish_test
diff --git a/test/tkt3424.test b/test/tkt3424.test
new file mode 100644
index 0000000000000000000000000000000000000000..f38fa5aafa4b762aca64db301461e8ce00e6cf2f
--- /dev/null
+++ b/test/tkt3424.test
@@ -0,0 +1,53 @@
+# 2008 October 06
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+#
+# $Id: tkt3424.test,v 1.2 2009/06/05 17:09:12 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt3424-1.1 {
+  execsql {
+    CREATE TABLE names(id INTEGER, data TEXT, code TEXT);
+    INSERT INTO names VALUES(1,'E1','AAA');
+    INSERT INTO names VALUES(2,NULL,'BBB');
+
+    CREATE TABLE orig(code TEXT, data TEXT);
+    INSERT INTO orig VALUES('AAA','E1');
+    INSERT INTO orig VALUES('AAA','E2');
+    INSERT INTO orig VALUES('AAA','E3');
+    INSERT INTO orig VALUES('AAA','E4');
+    INSERT INTO orig VALUES('AAA','E5');
+  }
+} {}
+
+do_test tkt3424-1.2 {
+  execsql {
+    SELECT * FROM 
+    names LEFT OUTER JOIN orig
+    ON names.data = orig.data AND names.code = orig.code;
+  }
+} {1 E1 AAA AAA E1 2 {} BBB {} {}}
+
+do_test tkt3424-1.3 {
+  execsql { CREATE INDEX udx_orig_code_data ON orig(code, data) }
+} {}
+
+do_test tkt3424-1.4 {
+  execsql {
+    SELECT * FROM 
+    names LEFT OUTER JOIN orig
+    ON names.data = orig.data AND names.code = orig.code;
+  }
+} {1 E1 AAA AAA E1 2 {} BBB {} {}}
+
+finish_test
diff --git a/test/tkt3442.test b/test/tkt3442.test
new file mode 100644
index 0000000000000000000000000000000000000000..aaf26623983dddc97be7f37b732d64deaa7adefb
--- /dev/null
+++ b/test/tkt3442.test
@@ -0,0 +1,62 @@
+# 2008 October 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that ticket #3442 has been
+# fixed.  
+#
+#
+# $Id: tkt3442.test,v 1.2 2009/06/05 17:09:12 drh Exp $
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+
+# Create a schema with some indexes.
+#
+do_test tkt3442-1.1 {
+  execsql {
+     CREATE TABLE listhash(
+       key INTEGER PRIMARY KEY,
+       id TEXT,
+       node INTEGER
+     );
+     CREATE UNIQUE INDEX ididx ON listhash(id);
+  }
+} {}
+
+# These tests perform an EXPLAIN QUERY PLAN on both versions of the 
+# SELECT referenced in ticket #3442 (both '5000' and "5000") 
+# and verify that the query plan is the same.
+#
+sqlite3_db_config db SQLITE_DBCONFIG_DQS_DML 1
+do_eqp_test tkt3442-1.2 {
+  SELECT node FROM listhash WHERE id='5000' LIMIT 1;
+} {SEARCH listhash USING INDEX ididx (id=?)}
+do_eqp_test tkt3442-1.3 {
+  SELECT node FROM listhash WHERE id="5000" LIMIT 1;
+} {SEARCH listhash USING INDEX ididx (id=?)}
+
+
+# Some extra tests testing other permutations of 5000.
+#
+do_eqp_test tkt3442-1.4 {
+  SELECT node FROM listhash WHERE id=5000 LIMIT 1;
+} {SEARCH listhash USING INDEX ididx (id=?)}
+
+do_test tkt3442-1.5 {
+  catchsql {
+    SELECT node FROM listhash WHERE id=[5000] LIMIT 1;
+  }
+} {1 {no such column: 5000}}
+
+finish_test
diff --git a/test/tkt3457.test b/test/tkt3457.test
new file mode 100644
index 0000000000000000000000000000000000000000..0273494639dfa43032085f7d8bacf1f093fcb036
--- /dev/null
+++ b/test/tkt3457.test
@@ -0,0 +1,105 @@
+# 2008 October 29
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# $Id: tkt3457.test,v 1.3 2009/06/26 07:12:07 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+if {$tcl_platform(platform) != "unix"} {
+  finish_test
+  return
+}
+if {[atomic_batch_write test.db]} {
+  finish_test
+  return
+}
+
+#-----------------------------------------------------------------------
+# To roll back a hot-journal file, the application needs read and write 
+# permission on the journal file in question. The following tests test
+# the outcome of trying to rollback a hot-journal file when this is not
+# the case.
+# 
+#   tkt3457-1.2: Application has neither read, nor write permission on
+#                the hot-journal file. Result: SQLITE_CANTOPEN.
+#                
+#   tkt3457-1.3: Application has write but not read permission on
+#                the hot-journal file. Result: SQLITE_CANTOPEN.
+#
+#   tkt3457-1.4: Application has read but not write permission on
+#                the hot-journal file. Result: SQLITE_CANTOPEN.
+#
+#   tkt3457-1.5: Application has read/write permission on the hot-journal 
+#                file. Result: SQLITE_OK.
+# 
+do_test tkt3457-1.1 {
+  execsql {
+    CREATE TABLE t1(a, b, c);
+    INSERT INTO t1 VALUES(1, 2, 3);
+    BEGIN;
+    INSERT INTO t1 VALUES(4, 5, 6);
+  }
+
+  forcecopy test.db bak.db
+  forcecopy test.db-journal bak.db-journal
+
+  # Fix the first journal-header in the journal-file. Because the
+  # journal file has not yet been synced, the 8-byte magic string at the
+  # start of the first journal-header has not been written by SQLite.
+  # So write it now.
+  set fd [open bak.db-journal a+]
+  fconfigure $fd -translation binary
+  seek $fd 0
+  puts -nonewline $fd "\xd9\xd5\x05\xf9\x20\xa1\x63\xd7"
+  close $fd
+
+  execsql COMMIT
+} {}
+
+# Disable fchmod to make sure SQLite itself does not try to change the
+# permission bits on us
+#
+catch {
+  test_syscall install fchmod
+  test_syscall fault 1 1
+}
+
+do_test tkt3457-1.2 {
+  forcecopy bak.db-journal test.db-journal
+  file attributes test.db-journal -permissions ---------
+  catchsql { SELECT * FROM t1 }
+} {1 {unable to open database file}}
+do_test tkt3457-1.3 {
+  forcecopy bak.db-journal test.db-journal
+  file attributes test.db-journal -permissions -w--w--w-
+  catchsql { SELECT * FROM t1 }
+} {1 {unable to open database file}}
+do_test tkt3457-1.4 {
+  forcecopy bak.db-journal test.db-journal
+  file attributes test.db-journal -permissions r--r--r--
+  catchsql { SELECT * FROM t1 }
+} {1 {unable to open database file}}
+
+do_test tkt3457-1.5 {
+  forcecopy bak.db-journal test.db-journal
+  file attributes test.db-journal -permissions rw-rw-rw-
+  catchsql { SELECT * FROM t1 }
+} {0 {1 2 3 4 5 6}}
+
+# Reenable fchmod
+catch {
+  test_syscall uninstall
+  test_syscall fault 0 0
+}
+
+finish_test
diff --git a/test/tkt3461.test b/test/tkt3461.test
new file mode 100644
index 0000000000000000000000000000000000000000..642980be09435200edf9bc0a8a3e93154681f8cf
--- /dev/null
+++ b/test/tkt3461.test
@@ -0,0 +1,67 @@
+# 2008 October 25
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that ticket #3461 has been
+# fixed.  
+#
+# $Id: tkt3461.test,v 1.4 2009/06/05 17:09:12 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+####################################
+####################################
+# REMOVE THESE TWO LINES:
+####################################
+####################################
+#finish_test
+#return
+
+do_test tkt3461-1.1 {
+  execsql {
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, 2);
+  }
+} {}
+
+do_test tkt3461-1.2 {
+  execsql { SELECT a, b+1 AS b_plus_one FROM t1 WHERE a=1 }
+} {1 3}
+
+do_test tkt3461-1.3 {
+  # explain { SELECT a, b+1 AS b_plus_one FROM t1 WHERE a=1 OR b_plus_one }
+  # execsql { PRAGMA vdbe_trace = 1; PRAGMA vdbe_listing=1 }
+  execsql { SELECT a, b+1 AS b_plus_one FROM t1 WHERE a=1 OR b_plus_one }
+} {1 3}
+
+do_test tkt3461-2.1 {
+  execsql { 
+    SELECT a, b+1 AS b_plus_one 
+    FROM t1 
+    WHERE CASE WHEN a=1 THEN 1 ELSE b_plus_one END 
+  }
+} {1 3}
+
+do_test tkt3461-3.1 {
+  execsql {
+    CREATE TABLE t2(c, d);
+    INSERT INTO t2 VALUES(3, 4);
+  }
+  # execsql { PRAGMA vdbe_trace = 1; PRAGMA vdbe_listing=1 }
+  execsql { 
+    SELECT a, b+1 AS b_plus_one, c, d 
+    FROM t1 LEFT JOIN t2 
+    ON (a=c AND d=b_plus_one)
+  }
+} {1 3 {} {}}
+
+finish_test
diff --git a/test/tkt3493.test b/test/tkt3493.test
new file mode 100644
index 0000000000000000000000000000000000000000..8fe91ddd209b47132099deb627d339e10de5512b
--- /dev/null
+++ b/test/tkt3493.test
@@ -0,0 +1,153 @@
+# 2008 October 13
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. Specifically,
+# it tests that affinities and collation sequences are correctly applied
+# in aggregate queries.
+#
+# $Id: tkt3493.test,v 1.2 2009/06/05 17:09:12 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt3493-1.1 {
+  execsql {
+    BEGIN;
+    CREATE TABLE A (id INTEGER PRIMARY KEY AUTOINCREMENT, val TEXT);
+    INSERT INTO A VALUES(1,'123');
+    INSERT INTO A VALUES(2,'456');
+    CREATE TABLE B (id INTEGER PRIMARY KEY AUTOINCREMENT, val TEXT);
+    INSERT INTO B VALUES(1,1);
+    INSERT INTO B VALUES(2,2);
+    CREATE TABLE A_B (B_id INTEGER NOT NULL, A_id INTEGER);
+    INSERT INTO A_B VALUES(1,1);
+    INSERT INTO A_B VALUES(2,2);
+    COMMIT;
+  }
+} {}
+do_test tkt3493-1.2 {
+  execsql {
+    SELECT 
+      CASE 
+         WHEN B.val = 1 THEN 'XYZ' 
+         ELSE A.val 
+      END AS Col1
+    FROM B  
+    LEFT OUTER JOIN A_B ON B.id = A_B.B_id  
+    LEFT OUTER JOIN A ON A.id = A_B.A_id
+    ORDER BY Col1 ASC;
+  }
+} {456 XYZ}
+do_test tkt3493-1.3 {
+  execsql {
+    SELECT DISTINCT
+      CASE 
+         WHEN B.val = 1 THEN 'XYZ' 
+         ELSE A.val 
+      END AS Col1
+    FROM B  
+    LEFT OUTER JOIN A_B ON B.id = A_B.B_id  
+    LEFT OUTER JOIN A ON A.id = A_B.A_id
+    ORDER BY Col1 ASC;
+  }
+} {456 XYZ}
+do_test tkt3493-1.4 {
+  execsql {
+    SELECT b.val, CASE WHEN b.val = 1 THEN 'xyz' ELSE b.val END AS col1 FROM b;
+  }
+} {1 xyz 2 2}
+do_test tkt3493-1.5 {
+  execsql {
+    SELECT DISTINCT 
+      b.val, 
+      CASE WHEN b.val = 1 THEN 'xyz' ELSE b.val END AS col1 
+    FROM b;
+  }
+} {1 xyz 2 2}
+do_test tkt3493-1.6 {
+  execsql {
+    SELECT DISTINCT 
+      b.val, 
+      CASE WHEN b.val = '1' THEN 'xyz' ELSE b.val END AS col1 
+    FROM b;
+  }
+} {1 xyz 2 2}
+
+
+do_test tkt3493-2.1 {
+  execsql {
+    CREATE TABLE t1(a TEXT, b INT);
+    INSERT INTO t1 VALUES(123, 456);
+  }
+} {}
+do_test tkt3493-2.2.1 {
+  execsql { SELECT a=123 FROM t1 GROUP BY a }
+} {1}
+do_test tkt3493-2.2.2 {
+  execsql { SELECT a=123 FROM t1 }
+} {1}
+do_test tkt3493-2.2.3 {
+  execsql { SELECT a='123' FROM t1 }
+} {1}
+do_test tkt3493-2.2.4 {
+  execsql { SELECT count(*), a=123 FROM t1 }
+} {1 1}
+do_test tkt3493-2.2.5 {
+  execsql { SELECT count(*), +a=123 FROM t1 }
+} {1 0}
+do_test tkt3493-2.3.3 {
+  execsql { SELECT b='456' FROM t1 GROUP BY a }
+} {1}
+do_test tkt3493-2.3.1 {
+  execsql { SELECT b='456' FROM t1 GROUP BY b }
+} {1}
+do_test tkt3493-2.3.2 {
+  execsql { SELECT b='456' FROM t1 }
+} {1}
+do_test tkt3493-2.4.1 {
+  execsql { SELECT typeof(a), a FROM t1 GROUP BY a HAVING a=123 }
+} {text 123}
+do_test tkt3493-2.4.2 {
+  execsql { SELECT typeof(a), a FROM t1 GROUP BY b HAVING a=123 }
+} {text 123}
+do_test tkt3493-2.5.1 {
+  execsql { SELECT typeof(b), b FROM t1 GROUP BY a HAVING b='456' }
+} {integer 456}
+do_test tkt3493-2.5.2 {
+  execsql { SELECT typeof(b), b FROM t1 GROUP BY b HAVING b='456' }
+} {integer 456}
+
+do_test tkt3493-3.1 {
+  execsql {
+    CREATE TABLE t2(a COLLATE NOCASE, b COLLATE BINARY);
+    INSERT INTO t2 VALUES('aBc', 'DeF');
+  }
+} {}
+do_test tkt3493-3.2.1 {
+  execsql { SELECT a='abc' FROM t2 GROUP BY a }
+} {1}
+do_test tkt3493-3.2.2 {
+  execsql { SELECT a='abc' FROM t2 }
+} {1}
+
+do_test tkt3493-3.3.1 {
+  execsql { SELECT a>b FROM t2 GROUP BY a, b}
+} {0}
+do_test tkt3493-3.3.2 {
+  execsql { SELECT a>b COLLATE BINARY FROM t2 GROUP BY a, b}
+} {1}
+do_test tkt3493-3.3.3 {
+  execsql { SELECT b>a FROM t2 GROUP BY a, b}
+} {0}
+do_test tkt3493-3.3.4 {
+  execsql { SELECT b>a COLLATE NOCASE FROM t2 GROUP BY a, b}
+} {1}
+
+finish_test
diff --git a/test/tkt3508.test b/test/tkt3508.test
new file mode 100644
index 0000000000000000000000000000000000000000..8275d69987378ebee258e7402a9389b0dcafd650
--- /dev/null
+++ b/test/tkt3508.test
@@ -0,0 +1,38 @@
+# 2008 November 22
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. 
+#
+# $Id: tkt3508.test,v 1.5 2009/05/28 01:00:56 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt3508-1.1 {
+  catchsql {
+    CREATE TABLE modificationsTmp (
+      SUBSTRATE_HPRD_ID VARCHAR(80),
+      SUBSTRATE_GENE_SYMBOL VARCHAR(80),
+      SUBSTRATE_ISOFORM_ID VARCHAR(80),
+      SUBSTRATE_REFSEQ_ID VARCHAR(80),
+      SITE INTEGER,
+      RESIDUE VARCHAR(80),
+      ENZYME_NAME VARCHAR(80),
+      ENZYME_HPRD_ID VARCHAR(80),
+      MODIFICATION_TYPE VARCHAR(80),
+      EXPERIMENT_TYPE VARCHAR(80),
+      REFERENCE_ID VARCHAR(80)
+    );
+    select SUBSTRATE_HPRD_ID, count(substrate_refseq_id) as c
+      from modificationsTmp where c > 1 group by SUBSTRATE_HPRD_ID;
+  }
+} {1 {misuse of aggregate: count()}}
+
+finish_test
diff --git a/test/tkt3522.test b/test/tkt3522.test
new file mode 100644
index 0000000000000000000000000000000000000000..998d489345f276a917397ca272e5d89c4ec3b33a
--- /dev/null
+++ b/test/tkt3522.test
@@ -0,0 +1,43 @@
+# 2008 December 4
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file is a verification that the bugs identified in ticket
+# #3522 have been fixed.
+#
+# $Id: tkt3522.test,v 1.1 2008/12/05 00:00:07 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt3522-1.1 {
+  db eval {
+    CREATE TABLE tab4(
+       col0 INTEGER,
+       col1 INTEGER,
+       col2 INTEGER,
+       col3 INTEGER,
+       col4 INTEGER
+    );
+    SELECT cor1.*
+      FROM tab4 AS cor0
+      JOIN tab4 AS cor1 USING ( col4, col3, col2, col1, col0 );
+  }
+} {}
+do_test tkt3522-1.2 {
+  db eval {
+    CREATE TABLE tab1(col0 INTEGER);
+    CREATE TABLE tab2(col0 INTEGER);
+    SELECT cor0.* FROM tab1 NATURAL JOIN tab2 AS cor0;
+  }
+} {}
+
+finish_test
diff --git a/test/tkt3527.test b/test/tkt3527.test
new file mode 100644
index 0000000000000000000000000000000000000000..da3d05ac46cf1e7b516c394ea3d7cf48d0f4e927
--- /dev/null
+++ b/test/tkt3527.test
@@ -0,0 +1,123 @@
+# 2008 December 8
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file is a verification that the bugs identified in ticket
+# #3527 have been fixed.
+#
+# $Id: tkt3527.test,v 1.1 2008/12/08 13:42:36 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !compound {
+  finish_test
+  return
+}
+
+do_test tkt3527-1.1 {
+  db eval {
+    CREATE TABLE Element (
+     Code INTEGER PRIMARY KEY,
+     Name VARCHAR(60)
+    );
+    
+    CREATE TABLE ElemOr (
+     CodeOr INTEGER NOT NULL,
+     Code INTEGER NOT NULL,
+     PRIMARY KEY(CodeOr,Code)
+    );
+    
+    CREATE TABLE ElemAnd (
+     CodeAnd INTEGER,
+     Code INTEGER,
+     Attr1 INTEGER,
+     Attr2 INTEGER,
+     Attr3 INTEGER,
+     PRIMARY KEY(CodeAnd,Code)
+    );
+    
+    INSERT INTO Element VALUES(1,'Elem1');
+    INSERT INTO Element VALUES(2,'Elem2');
+    INSERT INTO Element VALUES(3,'Elem3');
+    INSERT INTO Element VALUES(4,'Elem4');
+    INSERT INTO Element VALUES(5,'Elem5');
+    INSERT INTO ElemOr Values(3,4);
+    INSERT INTO ElemOr Values(3,5);
+    INSERT INTO ElemAnd VALUES(1,3,'a','b','c');
+    INSERT INTO ElemAnd VALUES(1,2,'x','y','z');
+    
+    CREATE VIEW ElemView1 AS
+    SELECT
+      CAST(Element.Code AS VARCHAR(50)) AS ElemId,
+     Element.Code AS ElemCode,
+     Element.Name AS ElemName,
+     ElemAnd.Code AS InnerCode,
+     ElemAnd.Attr1 AS Attr1,
+     ElemAnd.Attr2 AS Attr2,
+     ElemAnd.Attr3 AS Attr3,
+     0 AS Level,
+     0 AS IsOrElem
+    FROM Element JOIN ElemAnd ON ElemAnd.CodeAnd=Element.Code
+    WHERE ElemAnd.CodeAnd NOT IN (SELECT CodeOr FROM ElemOr)
+    UNION ALL
+    SELECT
+      CAST(ElemOr.CodeOr AS VARCHAR(50)) AS ElemId,
+      Element.Code AS ElemCode,
+      Element.Name AS ElemName,
+      ElemOr.Code AS InnerCode,
+      NULL AS Attr1,
+      NULL AS Attr2,
+      NULL AS Attr3,
+      0 AS Level,
+      1 AS IsOrElem
+    FROM ElemOr JOIN Element ON Element.Code=ElemOr.CodeOr
+    ORDER BY ElemId, InnerCode;
+    
+    CREATE VIEW ElemView2 AS
+    SELECT
+      ElemId,
+      ElemCode,
+      ElemName,
+      InnerCode,
+      Attr1,
+      Attr2,
+      Attr3,
+      Level,
+      IsOrElem
+    FROM ElemView1
+    UNION ALL
+    SELECT
+      Element.ElemId || '.' || InnerElem.ElemId AS ElemId,
+      InnerElem.ElemCode,
+      InnerElem.ElemName,
+      InnerElem.InnerCode,
+      InnerElem.Attr1,
+      InnerElem.Attr2,
+      InnerElem.Attr3,
+      InnerElem.Level+1,
+      InnerElem.IsOrElem
+    FROM ElemView1 AS Element
+    JOIN ElemView1 AS InnerElem
+         ON Element.Level=0 AND Element.InnerCode=InnerElem.ElemCode
+    ORDER BY ElemId, InnerCode;
+ 
+    SELECT * FROM ElemView1;
+  }
+} {1 1 Elem1 2 x y z 0 0 1 1 Elem1 3 a b c 0 0 3 3 Elem3 4 {} {} {} 0 1 3 3 Elem3 5 {} {} {} 0 1}
+   
+do_test tkt3527-1.2 {
+  db eval {
+    SELECT * FROM ElemView2;
+  }
+} {1 1 Elem1 2 x y z 0 0 1 1 Elem1 3 a b c 0 0 1.3 3 Elem3 4 {} {} {} 1 1 1.3 3 Elem3 5 {} {} {} 1 1 3 3 Elem3 4 {} {} {} 0 1 3 3 Elem3 5 {} {} {} 0 1}
+
+finish_test
diff --git a/test/tkt3541.test b/test/tkt3541.test
new file mode 100644
index 0000000000000000000000000000000000000000..f0597cfa10b48d17ac10e8911dd45ea72cf7f2e9
--- /dev/null
+++ b/test/tkt3541.test
@@ -0,0 +1,35 @@
+# 2008 December 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file is a verification that the bugs identified in ticket
+# #3541 have been fixed.
+#
+# $Id: tkt3541.test,v 1.1 2008/12/15 15:27:52 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt3541-1.1 {
+  db eval {
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(123);
+    SELECT CASE ~max(x) WHEN min(x) THEN 1 ELSE max(x) END FROM t1;
+  }
+} {123}
+do_test tkt3541-1.2 {
+  db eval {
+    SELECT CASE NOT max(x) WHEN min(x) THEN 1 ELSE max(x) END FROM t1;
+  }
+} {123}
+
+
+finish_test
diff --git a/test/tkt3554.test b/test/tkt3554.test
new file mode 100644
index 0000000000000000000000000000000000000000..a059486d640349b816d452657b52afe7c968dd65
--- /dev/null
+++ b/test/tkt3554.test
@@ -0,0 +1,67 @@
+# 2008 December 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that ticket #3554 has been
+# fixed.  
+#
+# $Id: tkt3554.test,v 1.2 2009/06/05 17:09:12 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !trigger {
+  finish_test
+  return
+}
+
+do_test tkt3544-1.1 {
+  execsql {
+    CREATE TABLE test ( obj, t1, t2, PRIMARY KEY(obj, t1, t2) );
+  
+    CREATE TRIGGER test_insert BEFORE INSERT ON test BEGIN
+      UPDATE test SET t1 = new.t1 
+        WHERE obj = new.obj AND new.t1 < t1 AND new.t2 >= t1;
+  
+      UPDATE test SET t2 = new.t2 
+        WHERE obj = new.obj AND new.t2 > t2 AND new.t1 <= t2;
+  
+      SELECT RAISE(IGNORE) WHERE EXISTS (
+        SELECT obj FROM test 
+        WHERE obj = new.obj AND new.t1 >= t1 AND new.t2 <= t2
+      );
+    END;
+  }
+} {}
+
+do_test tkt3544-1.2 {
+  execsql {
+    INSERT INTO test VALUES('a', 10000, 11000);
+    SELECT * FROM test;
+  }
+} {a 10000 11000}
+
+
+do_test tkt3544-1.3 {
+  execsql {
+    INSERT INTO test VALUES('a', 9000, 10500);
+  }
+  execsql { SELECT * FROM test }
+} {a 9000 11000}
+
+do_test tkt3544-1.4 {
+  execsql {
+    INSERT INTO test VALUES('a', 10000, 12000);
+  }
+  execsql { SELECT * FROM test }
+} {a 9000 12000}
+
+finish_test
diff --git a/test/tkt3581.test b/test/tkt3581.test
new file mode 100644
index 0000000000000000000000000000000000000000..e9b18fd9f496c31a0ef221807aca73d35a756f02
--- /dev/null
+++ b/test/tkt3581.test
@@ -0,0 +1,54 @@
+# 2008 January 13
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that ticket #3581 has been
+# fixed.  
+#
+# $Id: tkt3581.test,v 1.1 2009/01/14 01:10:40 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt3581-1.1 {
+  db eval {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+    INSERT INTO t1 VALUES(0,544,846);
+    INSERT INTO t1 VALUES(1,345,51);
+    CREATE TABLE t2(a INTEGER PRIMARY KEY, b, c);
+    INSERT INTO t2 SELECT * FROM t1;
+    CREATE INDEX i2 on t2(c);
+  }
+} {}
+
+do_test tkt3581-1.2 {
+  db eval {
+    SELECT a FROM t1
+     WHERE (b > 45 AND c < 356)
+        OR b <= 733
+        OR b >= 557
+        OR (b >= 614 AND c < 251)
+     ORDER BY b;
+  }
+} {1 0}
+
+do_test tkt3581-1.3 {
+  db eval {
+    SELECT a FROM t2
+     WHERE (b > 45 AND c < 356)
+        OR b <= 733
+        OR b >= 557
+        OR (b >= 614 AND c < 251)
+     ORDER BY b;
+  }
+} {1 0}
+
+finish_test
diff --git a/test/tkt35xx.test b/test/tkt35xx.test
new file mode 100644
index 0000000000000000000000000000000000000000..3b911c12472a68f44d1cfb601ec0db142e16f94a
--- /dev/null
+++ b/test/tkt35xx.test
@@ -0,0 +1,102 @@
+# 2008 November 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# When a transaction rolls back, make sure that dirty pages in the
+# page cache which are not in the rollback journal are reinitialized
+# in the btree layer.
+#
+# $Id: tkt35xx.test,v 1.4 2009/06/05 17:09:12 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt35xx-1.1 {
+  execsql {
+    PRAGMA auto_vacuum = 0;
+    PRAGMA page_size = 1024;
+  }
+} {}
+
+# Trigger the problem using explicit rollback.
+#
+do_test tkt35xx-1.1 {
+  execsql {
+    PRAGMA auto_vacuum = 0;
+    CREATE TABLE t1(a,b,c);
+    CREATE INDEX i1 ON t1(c);
+    INSERT INTO t1 VALUES(0, 0, zeroblob(676));
+    INSERT INTO t1 VALUES(1, 1, zeroblob(676));
+    DELETE FROM t1;
+    BEGIN;
+    INSERT INTO t1 VALUES(0, 0, zeroblob(676));
+    INSERT INTO t1 VALUES(1, 1, zeroblob(676));
+    ROLLBACK;
+    INSERT INTO t1 VALUES(0, 0, zeroblob(676));
+  }
+  execsql {
+    INSERT INTO t1 VALUES(1, 1, zeroblob(676));
+  }
+} {}
+
+# Trigger the problem using statement rollback.
+#
+db close
+delete_file test.db
+sqlite3 db test.db
+set big [string repeat abcdefghij 22]    ;# 220 byte string
+do_test tkt35xx-1.2.1 {
+  execsql {
+    PRAGMA auto_vacuum = 0;
+    PRAGMA page_size = 1024;
+    CREATE TABLE t3(a INTEGER PRIMARY KEY, b);
+    INSERT INTO t3 VALUES(1, $big);
+    INSERT INTO t3 VALUES(2, $big);
+    INSERT INTO t3 VALUES(3, $big);
+    INSERT INTO t3 VALUES(4, $big);
+    CREATE TABLE t4(c, d);
+    INSERT INTO t4 VALUES(5, $big);
+    INSERT INTO t4 VALUES(1, $big);
+  }
+} {}
+do_test tkt35xx-1.2.2 {
+  catchsql {
+    BEGIN;
+    CREATE TABLE t5(e PRIMARY KEY, f);
+    DROP TABLE t5;
+    INSERT INTO t3(a, b) SELECT c, d FROM t4;
+  }
+} {1 {UNIQUE constraint failed: t3.a}}
+do_test tkt35xx-1.2.3 {
+  # Show that the transaction has not been rolled back.
+  catchsql BEGIN
+} {1 {cannot start a transaction within a transaction}}
+do_test tkt35xx-1.2.4 {
+  execsql { SELECT count(*) FROM t3 }
+} {4}
+do_test tkt35xx-1.2.5 {
+  # Before the bug was fixed, if SQLITE_DEBUG was defined an assert()
+  # would fail during the following INSERT statement. If SQLITE_DEBUG
+  # was not defined, then the statement would pass and the transaction
+  # would be committed. But, the "SELECT count(*)" in tkt35xx-1.2.6 would
+  # return 1, not 5. Data magically disappeared!
+  #
+  execsql { 
+    INSERT INTO t3 VALUES(5, $big);
+    COMMIT;
+  }
+} {}
+do_test tkt35xx-1.2.6 {
+  execsql { SELECT count(*) FROM t3 }
+} {5}
+integrity_check tkt35xx-1.2.7
+
+finish_test
diff --git a/test/tkt3630.test b/test/tkt3630.test
new file mode 100644
index 0000000000000000000000000000000000000000..1fe7ce70fa5f75b43198194807655741d5302b03
--- /dev/null
+++ b/test/tkt3630.test
@@ -0,0 +1,47 @@
+# 2009 February 2
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# 
+# This file checks to make sure the "TEMP" or "TEMPORARY" keyword is
+# omitted from the schema of a table that is created using that
+# keyword.  Ticket #3630.
+#
+# $Id: tkt3630.test,v 1.1 2009/02/02 18:03:22 drh Exp $
+#
+
+set testdir [file dirname $argv0]
+
+source $testdir/tester.tcl
+
+do_test tkt3630-1 {
+  db eval {
+    CREATE TEMP TABLE temp1(a,b,c);
+    SELECT * FROM temp.sqlite_master WHERE sql GLOB '*TEMP*';
+  }
+} {}
+do_test tkt3630-2 {
+  db eval {
+    CREATE TABLE main1(a,b,c);
+    CREATE TEMP TABLE temp2 AS SELECT * FROM main1;
+    SELECT * FROM sqlite_temp_master WHERE sql GLOB '*TEMP*';
+  }
+} {}
+
+ifcapable altertable {
+  do_test tkt3630-3 {
+    db eval {
+      ALTER TABLE temp2 ADD COLUMN d;
+      ALTER TABLE temp2 RENAME TO temp2rn;
+      SELECT name FROM temp.sqlite_master WHERE name LIKE 'temp2%';
+    }
+  } {temp2rn}
+}
+
+finish_test
diff --git a/test/tkt3718.test b/test/tkt3718.test
new file mode 100644
index 0000000000000000000000000000000000000000..e5eb247481310bf1cb16f90a30b2a66f9a747c16
--- /dev/null
+++ b/test/tkt3718.test
@@ -0,0 +1,230 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the execution of SQL statements from
+# within callbacks generated by VMs that themselves open statement 
+# transactions.
+#
+# $Id: tkt3718.test,v 1.2 2009/06/05 17:09:12 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt3718-1.1 {
+  execsql {
+    CREATE TABLE t1(a PRIMARY KEY, b);
+    INSERT INTO t1 VALUES(1, 'one');
+    INSERT INTO t1 VALUES(2, 'two');
+    INSERT INTO t1 VALUES(3, 'three');
+    INSERT INTO t1 VALUES(4, 'four');
+    INSERT INTO t1 VALUES(5, 'five');
+    CREATE TABLE t2(a PRIMARY KEY, b);
+  }
+} {}
+
+# SQL scalar function:
+#
+#   f1(<arg>)
+#
+# Uses database handle [db] to execute "SELECT f2(<arg>)". Returns either
+# the results or error message from the "SELECT f2(<arg>)" query to the
+# caller.
+#
+proc f1 {args} {
+  set a [lindex $args 0]
+  catch { db eval {SELECT f2($a)} } msg
+  set msg
+}
+
+# SQL scalar function:
+#
+#   f2(<arg>)
+#
+# Return the value of <arg>. Unless <arg> is "three", in which case throw
+# an exception.
+#
+proc f2 {args} {
+  set a [lindex $args 0]
+  if {$a == "three"} { error "Three!!" }
+  return $a
+}
+
+db func f1 f1
+db func f2 f2
+
+# The second INSERT statement below uses the f1 user function such that
+# half-way through the INSERT operation f1() will run an SQL statement
+# that throws an exception. At one point, before #3718 was fixed, this
+# caused the statement transaction belonging to the INSERT statement to
+# be rolled back. The result was that some (but not all) of the rows that 
+# should have been inserted went missing.
+#
+do_test tkt3718-1.2 {
+  execsql {
+    BEGIN;
+    INSERT INTO t2 SELECT a, b FROM t1;
+    INSERT INTO t2 SELECT a+5, f1(b) FROM t1;
+    COMMIT;
+  }
+  execsql {
+    SELECT a FROM t2;
+  }
+} {1 2 3 4 5 6 7 8 9 10}
+
+# This test turns on the count_changes pragma (causing DML statements to
+# return SQLITE_ROW once, with a single integer result value reporting the
+# number of rows affected by the statement). It then executes an INSERT
+# statement that requires a statement journal. After stepping the statement
+# once, so that it returns SQLITE_ROW, a second SQL statement that throws an
+# exception is run. At one point, before #3718 was fixed, this caused the
+# statement transaction belonging to the INSERT statement to be rolled back.
+# The result was that none of the rows were actually inserted.
+# 
+#
+do_test tkt3718-1.3 {
+  execsql { 
+    DELETE FROM t2 WHERE a > 5;
+    PRAGMA count_changes = 1;
+    BEGIN;
+  }
+  db eval {INSERT INTO t2 SELECT a+5, b||'+5' FROM t1} {
+    catch { db eval {SELECT f2('three')} } msg
+  }
+  execsql {
+    COMMIT;
+    SELECT a FROM t2;
+  }
+} {1 2 3 4 5 6 7 8 9 10}
+
+do_test tkt3718-1.4 {
+  execsql {pragma count_changes=0}
+} {}
+
+# This SQL function executes the SQL specified as an argument against
+# database [db].
+#
+proc sql {doit zSql} {
+  if {$doit} { catchsql $zSql }
+}
+db func sql [list sql]
+
+# The following tests, tkt3718-2.*, test that a nested statement 
+# transaction can be successfully committed or reverted without 
+# affecting the parent statement transaction.
+#
+do_test tkt3718-2.1 {
+  execsql { SELECT sql(1, 'DELETE FROM t2 WHERE a = '||a ) FROM t2 WHERE a>5 }
+  execsql { SELECT a from t2 }
+} {1 2 3 4 5}
+do_test tkt3718-2.2 {
+  execsql {
+    DELETE FROM t2 WHERE a > 5;
+    BEGIN;
+    INSERT INTO t2 SELECT a+5, sql(a==3,
+        'INSERT INTO t2 SELECT a+10, f2(b) FROM t1'
+    ) FROM t1;
+  }
+  execsql {
+    COMMIT;
+    SELECT a FROM t2;
+  }
+} {1 2 3 4 5 6 7 8 9 10}
+do_test tkt3718-2.3 {
+  execsql {
+    DELETE FROM t2 WHERE a > 5;
+    BEGIN;
+    INSERT INTO t2 SELECT a+5, sql(a==3,
+        'INSERT INTO t2 SELECT a+10, b FROM t1'
+    ) FROM t1;
+    COMMIT;
+  }
+  execsql { SELECT a FROM t2 ORDER BY a+0}
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15}
+integrity_check tkt3718.2-4
+
+# The next set of tests, tkt3718-3.*, test that a statement transaction
+# that has a committed statement transaction nested inside of it can
+# be committed or reverted.
+#
+foreach {tn io ii results} {
+  1 0 10 {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20}
+  2 1 10 {6 7 8 9 10 16 17 18 19 20}
+  3 0 11 {1 2 3 4 5 6 7 8 9 10 16 17 18 19 20}
+  4 1 11 {6 7 8 9 10 16 17 18 19 20}
+} {
+  do_test tkt3718-3.$tn {
+    execsql { 
+      DELETE FROM t2;
+      INSERT INTO t2 SELECT a+5, b FROM t1;
+      INSERT INTO t2 SELECT a+15, b FROM t1;
+    }
+
+    catchsql "
+      BEGIN;
+      INSERT INTO t2 SELECT a+$io, sql(a==3,
+          'INSERT INTO t2 SELECT a+$ii, b FROM t1'
+      ) FROM t1;
+    "
+
+    execsql { COMMIT }
+
+    execsql { SELECT a FROM t2 ORDER BY a+0}
+  } $results
+
+  integrity_check tkt3718-3.$tn.integrity
+}
+
+# This is the same test as tkt3718-3.*, but with 3 levels of nesting.
+#
+foreach {tn i1 i2 i3 results} {
+  1   0 10 20   {5 10 15 20 25 30}
+  2   0 10 21   {5 10 15 20 30}
+  3   0 11 20   {5 10 20 30}
+  4   0 11 21   {5 10 20 30}
+  5   1 10 20   {10 20 30}
+  6   1 10 21   {10 20 30}
+  7   1 11 20   {10 20 30}
+  8   1 11 21   {10 20 30}
+} {
+  do_test tkt3718-4.$tn {
+    execsql { 
+      DELETE FROM t2;
+      INSERT INTO t2 SELECT a+5, b FROM t1;
+      INSERT INTO t2 SELECT a+15, b FROM t1;
+      INSERT INTO t2 SELECT a+25, b FROM t1;
+    }
+
+    catchsql "
+      BEGIN;
+      INSERT INTO t2 SELECT a+$i1, sql(a==3,
+          'INSERT INTO t2 SELECT a+$i2, sql(a==3, 
+             ''INSERT INTO t2 SELECT a+$i3, b FROM t1''
+           ) FROM t1'
+      ) FROM t1;
+    "
+
+    execsql { COMMIT }
+
+    execsql { SELECT a FROM t2 WHERE (a%5)==0 ORDER BY a+0}
+  } $results
+
+  do_test tkt3718-4.$tn.extra {
+    execsql {
+      SELECT 
+        (SELECT sum(a) FROM t2)==(SELECT sum(a*5-10) FROM t2 WHERE (a%5)==0)
+    }
+  } {1}
+
+  integrity_check tkt3718-4.$tn.integrity
+}
+
+
+finish_test
diff --git a/test/tkt3731.test b/test/tkt3731.test
new file mode 100644
index 0000000000000000000000000000000000000000..11e5efd707e66f1e326b689cb639c77a2213cf6d
--- /dev/null
+++ b/test/tkt3731.test
@@ -0,0 +1,56 @@
+# 2009 March 18
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# $Id: tkt3731.test,v 1.1 2009/03/17 22:33:01 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable {!trigger} {
+  finish_test
+  return
+}
+
+# The tests in this file were written before SQLite supported recursive
+# trigger invocation, and some tests depend on that to pass. So disable
+# recursive triggers for this file.
+catchsql { pragma recursive_triggers = off } 
+
+do_test tkt3731-1.1 {
+  execsql {
+    CREATE TABLE t1(a PRIMARY KEY, b);
+    CREATE TRIGGER tr1 AFTER INSERT ON t1 BEGIN
+      INSERT INTO t1 VALUES(new.a || '+', new.b || '+');
+    END;
+  }
+} {}
+
+do_test tkt3731-1.2 {
+  execsql {
+    INSERT INTO t1 VALUES('a', 'b');
+    INSERT INTO t1 VALUES('c', 'd');
+    SELECT * FROM t1;
+  }
+} {a b a+ b+ c d c+ d+}
+
+do_test tkt3731-1.3 {
+  execsql {
+    DELETE FROM t1;
+    CREATE TABLE t2(a, b);
+    INSERT INTO t2 VALUES('e', 'f');
+    INSERT INTO t2 VALUES('g', 'h');
+    INSERT INTO t1 SELECT * FROM t2;
+    SELECT * FROM t1;
+  }
+} {e f e+ f+ g h g+ h+}
+
+integrity_check tkt3731-1.4
+
+finish_test
diff --git a/test/tkt3757.test b/test/tkt3757.test
new file mode 100644
index 0000000000000000000000000000000000000000..011beb5c8b79f8f1a1b46832dab5bdfce88ea10d
--- /dev/null
+++ b/test/tkt3757.test
@@ -0,0 +1,60 @@
+# 2009 March 28
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Ticket #3757:  The cost functions on the query optimizer for the
+# IN operator can be improved.
+#
+# $Id: tkt3757.test,v 1.1 2009/03/29 00:13:04 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Evaluate SQL.  Return the result set followed by the
+# and the number of full-scan steps.
+#
+proc count_steps {sql} {
+  set r [db eval $sql]
+  lappend r scan [db status step] sort [db status sort]
+}
+
+# Construct tables
+#
+do_test tkt3757-1.1 {
+  db eval {
+     CREATE TABLE t1(x INTEGER, y INTEGER, z TEXT);
+     CREATE INDEX t1i1 ON t1(y,z);
+     INSERT INTO t1 VALUES(1,2,'three');
+     CREATE TABLE t2(a INTEGER, b TEXT);
+     INSERT INTO t2 VALUES(2, 'two');
+     ANALYZE;
+     SELECT * FROM sqlite_stat1 ORDER BY 1, 2;
+  }
+} {t1 t1i1 {1 1 1} t2 {} 1}
+
+# Modify statistics in order to make the optimizer then that:
+#
+#   (1)  Table T1 has about 250K entries
+#   (2)  There are only about 5 distinct values of T1.
+#
+# Then run a query with "t1.y IN (SELECT ..)" in the WHERE clause.
+# Make sure the index is used.
+#
+do_test tkt3757-1.2 {
+  db eval {
+    DELETE FROM sqlite_stat1;
+    INSERT INTO sqlite_stat1 VALUES('t1','t1i1','250000 50000 30');
+  }
+  count_steps {
+    SELECT * FROM t1 WHERE y IN (SELECT a FROM t2)
+  }
+} {1 2 three scan 0 sort 0}
+
+finish_test
diff --git a/test/tkt3761.test b/test/tkt3761.test
new file mode 100644
index 0000000000000000000000000000000000000000..2601b151dfa35306948722524adcd9f5f597735a
--- /dev/null
+++ b/test/tkt3761.test
@@ -0,0 +1,40 @@
+# 2009 March 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Ticket #3761:  Make sure that an incremental vacuum on an in-memory
+# database can be rolled back.
+#
+# $Id: tkt3761.test,v 1.1 2009/03/31 02:54:40 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt3761-1.1 {
+  db close
+  sqlite3 db :memory:
+  db eval {
+    PRAGMA auto_vacuum=INCREMENTAL;
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(zeroblob(900));
+    INSERT INTO t1 VALUES(zeroblob(900));
+    INSERT INTO t1 SELECT x FROM t1;
+    INSERT INTO t1 SELECT x FROM t1;
+    INSERT INTO t1 SELECT x FROM t1;
+    INSERT INTO t1 SELECT x FROM t1;
+    BEGIN;
+    DELETE FROM t1 WHERE rowid%2;
+    PRAGMA incremental_vacuum(4);
+    ROLLBACK;
+  }
+  db eval {PRAGMA integrity_check}
+} {ok}
+
+finish_test
diff --git a/test/tkt3762.test b/test/tkt3762.test
new file mode 100644
index 0000000000000000000000000000000000000000..424b1e6487554a5e43084e4b7720263faee0ed32
--- /dev/null
+++ b/test/tkt3762.test
@@ -0,0 +1,54 @@
+# 2009 March 28
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Ticket #3762:  Make sure that an incremental vacuum that reduces the
+# size of the database file such that if a pointer-map page is eliminated
+# it can be correctly rolled back.
+#
+# That ticket #3762 has been fixed has already been verified by the
+# savepoint6.test test script.  But this script is simplier and a
+# redundant test never hurts.
+#
+# $Id: tkt3762.test,v 1.1 2009/03/31 00:50:36 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt3762-1.1 {
+  db eval {
+    PRAGMA auto_vacuum=INCREMENTAL;
+    PRAGMA page_size=1024;
+    PRAGMA cache_size=10;
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(zeroblob(900));
+    INSERT INTO t1 VALUES(zeroblob(900));
+    INSERT INTO t1 SELECT x FROM t1;
+    INSERT INTO t1 SELECT x FROM t1;
+    INSERT INTO t1 SELECT x FROM t1;
+    INSERT INTO t1 SELECT x FROM t1;
+    INSERT INTO t1 SELECT x FROM t1;
+    INSERT INTO t1 SELECT x FROM t1;
+    INSERT INTO t1 SELECT x FROM t1;
+    DELETE FROM t1 WHERE rowid>202;
+    VACUUM;
+    
+    BEGIN;
+    DELETE FROM t1 WHERE rowid IN (10,11,12) ;
+    PRAGMA incremental_vacuum(10);
+    UPDATE t1 SET x=zeroblob(900) WHERE rowid BETWEEN 100 AND 110;
+    INSERT INTO t1 VALUES(zeroblob(39000));
+    SELECT count(*) FROM t1;
+    ROLLBACK;
+  }
+  db eval {PRAGMA integrity_check}
+} {ok}
+
+finish_test
diff --git a/test/tkt3773.test b/test/tkt3773.test
new file mode 100644
index 0000000000000000000000000000000000000000..3f5a1a3217ae4ede2647bdfef161aa0d81b69fa9
--- /dev/null
+++ b/test/tkt3773.test
@@ -0,0 +1,43 @@
+# 2009 April 2
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Ticket #3773:  Be careful not to over-optimize when a compound
+# subquery contains an ORDER BY clause.
+#
+#
+# $Id: tkt3773.test,v 1.1 2009/04/02 16:59:47 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !compound {
+  finish_test
+  return
+}
+
+do_test tkt3773-1.1 {
+  db eval {
+    CREATE TABLE t1(a,b);
+    INSERT INTO t1 VALUES(2,1);
+    INSERT INTO t1 VALUES(33,3);
+    CREATE TABLE t2(x,y);
+    INSERT INTO t2 VALUES(123,2);
+    INSERT INTO t2 VALUES(4,4);
+    SELECT a FROM (
+      SELECT a, b FROM t1
+      UNION ALL
+      SELECT x, y FROM t2
+      ORDER BY 2
+    );
+  }
+} {2 123 33 4}
+
+finish_test
diff --git a/test/tkt3791.test b/test/tkt3791.test
new file mode 100644
index 0000000000000000000000000000000000000000..5d676ca1038206ae3a7e166a4e2b60faf8063fd3
--- /dev/null
+++ b/test/tkt3791.test
@@ -0,0 +1,28 @@
+# 2009 April 2
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Ticket #3791:  A segfault when inserting into a table that contains
+# an arbitrary expression as its default value.
+#
+# $Id: tkt3791.test,v 1.1 2009/04/08 12:21:31 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt3791-1.1 {
+  db eval {
+    CREATE TABLE t1(x, y DEFAULT(datetime('now')));
+    INSERT INTO t1(x) VALUES(1);
+    SELECT x, length(y) FROM t1;
+  }
+} {1 19}
+
+finish_test
diff --git a/test/tkt3793.test b/test/tkt3793.test
new file mode 100644
index 0000000000000000000000000000000000000000..07e47eb468740dd84dcd6b707e86b8290858aba9
--- /dev/null
+++ b/test/tkt3793.test
@@ -0,0 +1,112 @@
+# 2009 April 10
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that ticket #3793 has been
+# fixed.  
+#
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !shared_cache||!attach {
+  finish_test
+  return
+}
+set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
+
+do_test tkt3793-1.1 {
+  db close
+  sqlite3 db "file:test.db" -uri 1
+  sqlite3 db1 "file:test.db?cache=private" -uri 1
+  sqlite3 db2 "file:test.db?cache=shared" -uri 1
+  execsql {
+    BEGIN;
+    CREATE TABLE t1(a, b);
+    CREATE TABLE t2(a PRIMARY KEY, b);
+    INSERT INTO t1 VALUES(randstr(50,50), randstr(50,50));
+    INSERT INTO t1 SELECT randstr(50,50), randstr(50,50) FROM t1;
+    INSERT INTO t1 SELECT randstr(50,50), randstr(50,50) FROM t1;
+    INSERT INTO t1 SELECT randstr(50,50), randstr(50,50) FROM t1;
+    INSERT INTO t1 SELECT randstr(50,50), randstr(50,50) FROM t1;
+    INSERT INTO t1 SELECT randstr(50,50), randstr(50,50) FROM t1;
+    INSERT INTO t1 SELECT randstr(50,50), randstr(50,50) FROM t1;
+    INSERT INTO t1 SELECT randstr(50,50), randstr(50,50) FROM t1;
+    INSERT INTO t1 SELECT randstr(50,50), randstr(50,50) FROM t1;
+    INSERT INTO t1 SELECT randstr(50,50), randstr(50,50) FROM t1;
+    INSERT INTO t1 SELECT randstr(50,50), randstr(50,50) FROM t1;
+    INSERT INTO t2 SELECT * FROM t1;
+    COMMIT;
+  }
+} {}
+
+proc busyhandler {db args} { set ::busyconnection $db ; return 1 }
+db2 busy {busyhandler db2}
+db1 busy {busyhandler db1}
+
+# Establish a read-lock on the database file using connection [db].
+#
+do_test tkt3793-1.2 {
+  execsql {
+    BEGIN;
+    SELECT count(*) FROM t1;
+  }
+} {1024}
+
+# Set the size of the cache shared by [db1] and [db2] to 10. Then update
+# more than 10 pages of table t1. At this point the shared-cache will
+# hold a RESERVED lock on the database file. Even though there are now
+# more than 10 dirty pages in memory, it cannot upgrade to an EXCLUSIVE 
+# lock because of the read-lock held by [db].
+#
+do_test tkt3793-1.3 {
+  execsql {
+    PRAGMA cache_size = 10;
+    BEGIN;
+    UPDATE t1 SET b = randstr(50,50);
+  } db1
+} {}
+
+set x 0
+
+# Run one SELECT query on the shared-cache using [db1], then from within 
+# the callback run another via [db2]. Because of the large number of dirty
+# pages within the cache, each time a new page is read from the database
+# SQLite will attempt to upgrade to an EXCLUSIVE lock, and hence invoke
+# the busy-handler. The tests here verify that the correct busy-handler
+# function is invoked (the busy-handler associated with the database
+# connection that called sqlite3_step()). When bug #3793 existed, sometimes
+# the [db2] busy-handler was invoked from within the call to sqlite3_step()
+# associated with [db1]. 
+#
+# Note: Before the bug was fixed, if [db2] was opened with the "-fullmutex 1"
+# option, then this test case would cause an assert() to fail.
+#
+ifcapable threadsafe {
+  set ::busyconnection db1
+  db1 eval {SELECT * FROM t2 ORDER BY a LIMIT 20} {
+    do_test tkt3793-2.[incr x] { set ::busyconnection } db1
+    set ::busyconnection db2
+  
+    db2 eval { SELECT count(*) FROM t2 }
+    do_test tkt3793-2.[incr x] { set ::busyconnection } db2
+    set ::busyconnection db1
+  }
+}
+  
+do_test tkt3793-3 {
+  db1 close
+  db2 close
+} {}
+
+sqlite3_enable_shared_cache $::enable_shared_cache
+finish_test
diff --git a/test/tkt3810.test b/test/tkt3810.test
new file mode 100644
index 0000000000000000000000000000000000000000..e0798aacb4fd1c440330a96897383b3757369503
--- /dev/null
+++ b/test/tkt3810.test
@@ -0,0 +1,103 @@
+# 2009 August 1
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests to make sure #3810 is fixed.
+#
+# $Id: tkt3810.test,v 1.4 2009/08/06 17:43:31 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable {!trigger} {
+  finish_test
+  return
+}
+
+# Create a table using the first database connection.
+#
+do_test tkt3810-1.1 {
+  execsql {
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(123);
+    SELECT * FROM t1;
+    CREATE TABLE t2(y);
+    CREATE TABLE t3(z);
+  }
+} 123
+
+# Create a second connection to the same database.  Make sure the
+# schema of the database has been parsed by the second connection.
+#
+do_test tkt3810-2 {
+  sqlite3 db2 test.db
+  execsql {
+    SELECT * FROM t1;
+  } db2
+} 123
+
+# DROP the table using the second connection.  The table no longer exists
+# but the first connection does not yet know this.  Then try to create a TEMP
+# trigger in the first connection that references the table that was dropped.
+#
+do_test tkt3810-3 {
+  execsql {DROP TABLE t1} db2
+  execsql {
+     CREATE TEMP TRIGGER r1 AFTER INSERT ON t1 BEGIN
+       INSERT INTO t2 VALUES(new.rowid);
+     END;
+  }
+  catchsql {
+    SELECT * FROM t3;
+  }
+} {0 {}}
+
+# Trigger still exists in the sqlite_temp_master table, but now it is
+# an orphan.
+#
+do_test tkt3810-4 {
+  execsql {SELECT name FROM temp.sqlite_master ORDER BY name}
+} {r1}
+
+# Because it is an orphan, it cannot be dropped.
+#
+do_test tkt3810-5 {
+  catchsql {DROP TRIGGER r1}
+} {1 {no such trigger: r1}}
+
+# Create a table t1 then drop the table in order to drop the orphaned
+# trigger.
+#
+do_test tkt3810-6 {
+  execsql {CREATE TABLE t1(x)} db2
+  execsql {DROP TABLE t1}
+  execsql {
+    SELECT name FROM sqlite_temp_master;
+  }
+} {}
+
+db2 close
+
+# 2020-11-06 forum post https://sqlite.org/forum/forumpost/157dc791df
+#
+reset_db
+do_test tkt3810-100 {
+  db eval {
+    ATTACH ':memory:' AS aux1;
+    CREATE TABLE aux1.t1(x);
+    CREATE TEMP TRIGGER r1 DELETE ON t1 BEGIN SELECT *; END;
+    CREATE VIEW t1 AS SELECT *;
+  }
+  catch {db eval {
+    CREATE VIRTUAL TABLE t2 USING nosuchmodule;
+  }}
+  db eval {CREATE TABLE t3(z);}
+} {}
+
+finish_test
diff --git a/test/tkt3824.test b/test/tkt3824.test
new file mode 100644
index 0000000000000000000000000000000000000000..3198abbdd3afbd17b801727cfb6c73c97649284e
--- /dev/null
+++ b/test/tkt3824.test
@@ -0,0 +1,99 @@
+# 2009 April 24                                                                 
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Ticket #3824
+#
+# When you use an "IS NULL" constraint on a UNIQUE index, the result
+# is not necessarily UNIQUE.  Make sure the optimizer does not assume
+# uniqueness.
+#
+# $Id: tkt3824.test,v 1.2 2009/04/24 20:32:31 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+proc execsql_status {sql {db db}} {
+  set result [uplevel $db eval [list $sql]]
+  if {[db status sort]} {
+    concat $result sort
+  } else {
+    concat $result nosort
+  }
+}
+
+do_test tkt3824-1.1 {
+  db eval {
+    CREATE TABLE t1(a,b);
+    INSERT INTO t1 VALUES(1,NULL);
+    INSERT INTO t1 VALUES(9,NULL);
+    INSERT INTO t1 VALUES(5,NULL);
+    INSERT INTO t1 VALUES(123,NULL);
+    INSERT INTO t1 VALUES(-10,NULL);
+    CREATE UNIQUE INDEX t1b ON t1(b);
+  }
+  execsql_status {
+    SELECT a FROM t1 WHERE b IS NULL ORDER BY a;
+  }
+} {-10 1 5 9 123 sort}
+do_test tkt3824-1.2 {
+  execsql_status {
+    SELECT a FROM t1 WHERE b IS NULL ORDER BY b, a;
+  }
+} {-10 1 5 9 123 sort}
+
+do_test tkt3824-2.1 {
+  db eval {
+    CREATE TABLE t2(a,b,c);
+    INSERT INTO t2 VALUES(1,1,NULL);
+    INSERT INTO t2 VALUES(9,2,NULL);
+    INSERT INTO t2 VALUES(5,2,NULL);
+    INSERT INTO t2 VALUES(123,3,NULL);
+    INSERT INTO t2 VALUES(-10,3,NULL);
+    CREATE UNIQUE INDEX t2bc ON t2(b,c);
+  }
+  execsql_status {
+    SELECT a FROM t2 WHERE b=2 AND c IS NULL ORDER BY a;
+  }
+} {5 9 sort}
+do_test tkt3824-2.2 {
+  execsql_status {
+    SELECT a FROM t2 WHERE b=2 AND c IS NULL ORDER BY b, a;
+  }
+} {5 9 sort}
+do_test tkt3824-2.3 {
+  lsort [execsql_status {
+    SELECT a FROM t2 WHERE b=2 AND c IS NULL ORDER BY b;
+  }]
+} {5 9 nosort}
+
+do_test tkt3824-3.1 {
+  db eval {
+    CREATE TABLE t3(x,y);
+    INSERT INTO t3 SELECT a, b FROM t1;
+    INSERT INTO t3 VALUES(234,567);
+    CREATE UNIQUE INDEX t3y ON t3(y);
+    DELETE FROM t3 WHERE y IS NULL;
+    SELECT * FROM t3;
+  }
+} {234 567}
+
+do_test tkt3824-4.1 {
+  db eval {
+    CREATE TABLE t4(x,y);
+    INSERT INTO t4 SELECT a, b FROM t1;
+    INSERT INTO t4 VALUES(234,567);
+    CREATE UNIQUE INDEX t4y ON t4(y);
+    UPDATE t4 SET rowid=rowid+100 WHERE y IS NULL;
+    SELECT rowid, x FROM t4 ORDER BY rowid;
+  }
+} {6 234 101 1 102 9 103 5 104 123 105 -10}
+
+finish_test
diff --git a/test/tkt3832.test b/test/tkt3832.test
new file mode 100644
index 0000000000000000000000000000000000000000..bb73c8c7d061a035cce8482c89abbbb6cf3ddc21
--- /dev/null
+++ b/test/tkt3832.test
@@ -0,0 +1,41 @@
+# 2009 April 30                                                            
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Ticket #3832
+#
+# A segfault when using a BEFORE trigger on an INSERT and inserting
+# a NULL into the INTEGER PRIMARY KEY.
+#
+# $Id: tkt3832.test,v 1.1 2009/05/01 02:08:04 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable {!trigger} {
+  finish_test
+  return
+}
+
+
+do_test tkt3832-1.1 {
+  db eval {
+    CREATE TABLE t1(a INT, b INTEGER PRIMARY KEY);
+    CREATE TABLE log(x);
+    CREATE TRIGGER t1r1 BEFORE INSERT ON t1 BEGIN
+      INSERT INTO log VALUES(new.b);
+    END;
+    INSERT INTO t1 VALUES(NULL,5);
+    INSERT INTO t1 SELECT b, a FROM t1 ORDER BY b;
+    SELECT rowid, * FROM t1;
+    SELECT rowid, * FROM log;
+  }
+} {5 {} 5 6 5 6 1 5 2 -1}
+
+finish_test
diff --git a/test/tkt3838.test b/test/tkt3838.test
new file mode 100644
index 0000000000000000000000000000000000000000..fa937acdf4ea2f5b7024443ff2eafb9f29a8bea3
--- /dev/null
+++ b/test/tkt3838.test
@@ -0,0 +1,58 @@
+# 2009 May 5
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Ticket #3838
+#
+# The ticket reports that the encoding is UTF8 on the DEFAULT VALUE of
+# a column added using ALTER TABLE even when the database is UTF16.
+# Verify that this has been fixed.
+#
+# $Id: tkt3838.test,v 1.1 2009/05/05 12:54:50 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !altertable {
+  finish_test
+  return
+}
+
+do_realnum_test tkt3838-1.1 {
+  db eval {
+    PRAGMA encoding=UTF16;
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(1);
+    ALTER TABLE t1 ADD COLUMN b INTEGER DEFAULT '999';
+    ALTER TABLE t1 ADD COLUMN c REAL DEFAULT '9e99';
+    ALTER TABLE t1 ADD COLUMN d TEXT DEFAULT 'xyzzy';
+    UPDATE t1 SET x=x+1;
+    SELECT * FROM t1;
+  }
+} {2 999 9e+99 xyzzy}
+
+ifcapable trigger {
+  do_test tkt3838-1.2 {
+    db eval {
+      CREATE TABLE log(y);
+      CREATE TRIGGER r1 AFTER INSERT ON T1 BEGIN
+        INSERT INTO log VALUES(new.x);
+      END;
+      INSERT INTO t1(x) VALUES(123);
+      ALTER TABLE T1 RENAME TO XYZ2;
+      INSERT INTO xyz2(x) VALUES(456);
+      ALTER TABLE xyz2 RENAME TO pqr3;
+      INSERT INTO pqr3(x) VALUES(789);
+      SELECT * FROM log;
+    }
+  } {123 456 789}
+}
+
+finish_test
diff --git a/test/tkt3841.test b/test/tkt3841.test
new file mode 100644
index 0000000000000000000000000000000000000000..542c1bb5e7f014a8baf4e19f924379a3d8c6a366
--- /dev/null
+++ b/test/tkt3841.test
@@ -0,0 +1,49 @@
+# 2009 May 7
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Ticket #3841
+#
+# The sqlite3_aggregate_count() is not being reset when an aggregate
+# functio is used in a correlated subquery.
+#
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !subquery {
+  finish_test
+  return
+}
+
+sqlite3_db_config db SQLITE_DBCONFIG_DQS_DML 1
+do_test tkt3841.1 {
+  execsql {
+    CREATE TABLE table2 (key TEXT, x TEXT);
+    CREATE TABLE list (key TEXT, value TEXT);
+  
+    INSERT INTO table2 VALUES ("a", "alist");
+    INSERT INTO table2 VALUES ("b", "blist");
+    INSERT INTO list VALUES ("a", 1);
+    INSERT INTO list VALUES ("a", 2);
+    INSERT INTO list VALUES ("a", 3);
+    INSERT INTO list VALUES ("b", 4);
+    INSERT INTO list VALUES ("b", 5);
+    INSERT INTO list VALUES ("b", 6);
+
+    SELECT
+      table2.x,
+      (SELECT group_concat(list.value)
+        FROM list
+        WHERE list.key = table2.key)
+    FROM table2;
+  }
+} {alist 1,2,3 blist 4,5,6}
+
+finish_test
diff --git a/test/tkt3871.test b/test/tkt3871.test
new file mode 100644
index 0000000000000000000000000000000000000000..d587910d393a69138c016a73139c306972d9ab37
--- /dev/null
+++ b/test/tkt3871.test
@@ -0,0 +1,53 @@
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+register_echo_module [sqlite3_connection_pointer db]
+
+do_test tkt3871-1.1 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t1(a PRIMARY KEY, b UNIQUE);
+  }
+  for {set i 0} {$i < 500} {incr i} {
+    execsql { INSERT INTO t1 VALUES($i, $i*$i) }
+  }
+  execsql COMMIT
+  execsql { 
+    CREATE VIRTUAL TABLE e USING echo(t1);
+    SELECT count(*) FROM e;
+  }
+} {500}
+
+do_test tkt3871-1.2 {
+  execsql { SELECT * FROM e WHERE a = 1 OR a = 2 }
+} {1 1 2 4}
+do_test tkt3871-1.3 {
+  set echo_module ""
+  execsql { SELECT * FROM e WHERE a = 1 OR a = 2 }
+  set echo_module
+} [list \
+  xFilter {SELECT rowid, a, b FROM 't1' WHERE a = ?} 1 \
+  xFilter {SELECT rowid, a, b FROM 't1' WHERE a = ?} 2 \
+]
+
+do_test tkt3871-1.4 {
+  execsql { SELECT * FROM e WHERE a = 1 OR a = 2 OR b = 9 }
+} {1 1 2 4 3 9}
+do_test tkt3871-1.5 {
+  set echo_module ""
+  execsql { SELECT * FROM e WHERE a = 1 OR a = 2 OR b = 9 }
+  set echo_module
+} [list \
+  xFilter {SELECT rowid, a, b FROM 't1' WHERE a = ?} 1 \
+  xFilter {SELECT rowid, a, b FROM 't1' WHERE a = ?} 2 \
+  xFilter {SELECT rowid, a, b FROM 't1' WHERE b = ?} 9
+]
+
+
+finish_test
diff --git a/test/tkt3879.test b/test/tkt3879.test
new file mode 100644
index 0000000000000000000000000000000000000000..ed5577f909c86b1d571cb9dd5855304af1e716a5
--- /dev/null
+++ b/test/tkt3879.test
@@ -0,0 +1,52 @@
+# 2009 May 25
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests to verify ticket #3879 is fixed.
+#
+# $Id: tkt3879.test,v 1.2 2009/06/05 17:09:12 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt3879.1.1 {
+  execsql {
+    CREATE TABLE t1 (a PRIMARY KEY, b);
+    INSERT INTO t1 VALUES ('w',  1);
+    INSERT INTO t1 VALUES ('z', -1);
+  
+    CREATE TABLE t2 (m INTEGER PRIMARY KEY, n, a, p);
+    INSERT INTO t2 VALUES (25, 13, 'w', 1);
+    INSERT INTO t2 VALUES (26, 25, 'z', 153);
+    INSERT INTO t2 VALUES (27, 25, 'z', 68);
+
+    CREATE TABLE t3 (m);
+    INSERT INTO t3 VALUES (25);
+  }
+} {}
+
+do_test tkt3879.1.2 {
+  execsql {
+    SELECT 111, t1.b*123
+    FROM t3, t2 AS j0, t2 AS j1, t1
+    WHERE j0.m=t3.m AND t1.a=j0.a AND j1.n=j0.m;
+  }
+} {111 123 111 123}
+
+do_test tkt3879.1.3 {
+  execsql {
+    SELECT 222, t1.b*123
+    FROM t3, t2 AS j0, t2 AS j1, t1
+    WHERE j0.m=t3.m AND t1.a=j0.a AND j1.n=j0.m
+    ORDER BY t1.b;
+  }
+} {222 123 222 123}
+
+finish_test
diff --git a/test/tkt3911.test b/test/tkt3911.test
new file mode 100644
index 0000000000000000000000000000000000000000..2ac56cbbc756d9be4f276c3623270ea9d257fba6
--- /dev/null
+++ b/test/tkt3911.test
@@ -0,0 +1,58 @@
+# 2009 June 11
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests to verify ticket #3911 is fixed.
+#
+# $Id: tkt3911.test,v 1.1 2009/06/12 03:27:28 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt3911.1 {
+  execsql {
+    CREATE TABLE t1(a,b);
+    INSERT INTO t1 VALUES(1,2);
+    INSERT INTO t1 VALUES(11,12);
+
+    CREATE TABLE t2(b,c);
+    INSERT INTO t2 VALUES(2,3);
+    INSERT INTO t2 VALUES(22,23);
+
+    SELECT * FROM t1 JOIN t2 USING(b);
+  }
+} {1 2 3}
+do_test tkt3911.2 {
+  db eval {
+    SELECT * FROM t1 JOIN (t2) AS x USING (b);
+  }
+} {1 2 3}
+do_test tkt3911.3 {
+  db eval {
+    SELECT * FROM t1 JOIN (SELECT * FROM t2) AS x USING (b);
+  }
+} {1 2 3}
+
+do_test tkt3911.4 {
+  db eval {
+    CREATE TABLE t3(m,a);
+    INSERT INTO t3 VALUES('one',1);
+    INSERT INTO t3 VALUES('two',2);
+
+    SELECT * FROM t3 JOIN (SELECT * FROM t1 NATURAL JOIN t2) AS x USING(a);
+  }
+} {one 1 2 3}
+do_test tkt3911.5 {
+  db eval {
+    SELECT * FROM t3 JOIN (SELECT * FROM t1 JOIN t2 USING (b)) AS x USING(a);
+  }
+} {one 1 2 3}
+
+finish_test
diff --git a/test/tkt3918.test b/test/tkt3918.test
new file mode 100644
index 0000000000000000000000000000000000000000..e20ee152fc17a16334b644a9bd8321f08b132b91
--- /dev/null
+++ b/test/tkt3918.test
@@ -0,0 +1,59 @@
+# 2009 June 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# $Id: tkt3918.test,v 1.1 2009/06/17 11:13:28 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt3918.1 {
+  execsql {
+    PRAGMA page_size = 1024;
+    PRAGMA auto_vacuum = incremental;
+    CREATE TABLE t1(i, x);
+  }
+} {}
+do_test tkt3918.2 {
+  execsql {
+    INSERT INTO t1 VALUES(1, randstr(1000,1000));
+    INSERT INTO t1 VALUES(2, zeroblob(248*1020 + 100));
+    INSERT INTO t1 VALUES(3, zeroblob(2*1020 + 100));
+  }
+} {}
+
+# This set of statements sets up the free list so that the
+# first free-list trunk page contains only a single leaf.
+# The leaf page is also the last page in the database. The
+# second free-list trunk page contains, amongst other things,
+# page number 4.
+do_test tkt3918.3 {
+  execsql {
+    DELETE FROM t1 WHERE i = 2;
+    DELETE FROM t1 WHERE i = 1;
+    DELETE FROM t1 WHERE i = 3;
+  }
+} {}
+
+# Incrementally vacuum the database to reduce its size by a single
+# page. This will remove the single leaf from the first page in
+# the linked list of free-list trunk pages.
+do_test tkt3918.4 {
+  execsql { PRAGMA incremental_vacuum = 1 }
+} {}
+
+# Create another table. This operation will attempt to extract 
+# page 4 from the database free-list. Bug 3918 caused sqlite to
+# incorrectly report corruption here.
+do_test tkt3918.5 {
+  execsql { CREATE TABLE t2(a, b) }
+} {}
+
+finish_test
diff --git a/test/tkt3922.test b/test/tkt3922.test
new file mode 100644
index 0000000000000000000000000000000000000000..86bf5feceb71fdfc3e02e641d007d8fab518c5f9
--- /dev/null
+++ b/test/tkt3922.test
@@ -0,0 +1,89 @@
+# 2009 June 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# $Id: tkt3922.test,v 1.2 2009/06/26 14:17:47 shane Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+if {[working_64bit_int]} {
+  do_test tkt3922.1 {
+    execsql {
+      CREATE TABLE t1(a NUMBER);
+      INSERT INTO t1 VALUES('-9223372036854775808');
+      SELECT a, typeof(a) FROM t1;
+    }
+  } {-9223372036854775808 integer}
+} else {
+  # this alternate version of tkt3922.1 doesn't
+  # really test the same thing as the original, 
+  # but is needed to create the table and 
+  # provided simply as a place holder for 
+  # platforms without working 64bit support.
+  do_test tkt3922.1 {
+    execsql {
+      CREATE TABLE t1(a NUMBER);
+      INSERT INTO t1 VALUES('-1');
+      SELECT a, typeof(a) FROM t1;
+    }
+  } {-1 integer}
+}
+do_realnum_test tkt3922.2 {
+  execsql {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES('-9223372036854775809');
+    SELECT a, typeof(a) FROM t1;
+  }
+} {-9.22337203685478e+18 real}
+do_realnum_test tkt3922.3 {
+  execsql {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES('-9223372036854776832');
+    SELECT a, typeof(a) FROM t1;
+  }
+} {-9.22337203685478e+18 real}
+do_realnum_test tkt3922.4 {
+  execsql {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES('-9223372036854776833');
+    SELECT a, typeof(a) FROM t1;
+  }
+} {-9.22337203685478e+18 real}
+if {[working_64bit_int]} {
+  do_test tkt3922.5 {
+    execsql {
+      DELETE FROM t1;
+      INSERT INTO t1 VALUES('9223372036854775807');
+      SELECT a, typeof(a) FROM t1;
+    }
+  } {9223372036854775807 integer}
+} else {
+  # this alternate version of tkt3922.5 doesn't
+  # really test the same thing as the original, 
+  # but provided simply as a place holder for 
+  # platforms without working 64bit support.
+  do_test tkt3922.5 {
+    execsql {
+      DELETE FROM t1;
+      INSERT INTO t1 VALUES('1');
+      SELECT a, typeof(a) FROM t1;
+    }
+  } {1 integer}
+}
+do_realnum_test tkt3922.6 {
+  execsql {
+    DELETE FROM t1;
+    INSERT INTO t1 VALUES('9223372036854775808');
+    SELECT a, typeof(a) FROM t1;
+  }
+} {9.22337203685478e+18 real}
+
+finish_test
diff --git a/test/tkt3929.test b/test/tkt3929.test
new file mode 100644
index 0000000000000000000000000000000000000000..db02bb841e5330a0de545eeee118fd68627c0972
--- /dev/null
+++ b/test/tkt3929.test
@@ -0,0 +1,52 @@
+# 2009 June 23
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests to verify ticket #3929 is fixed.
+#
+# $Id: tkt3929.test,v 1.1 2009/06/23 11:53:09 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable {!trigger} {
+  finish_test
+  return
+}
+
+do_test tkt3929-1.0 {
+  execsql {
+    PRAGMA page_size = 1024;
+    CREATE TABLE t1(a, b);
+    CREATE INDEX i1 ON t1(a, b);
+    CREATE TRIGGER t1_t1 AFTER INSERT ON t1 BEGIN
+      UPDATE t1 SET b = 'value: ' || a WHERE t1.rowid = new.rowid;
+    END;
+  }
+} {}
+
+do_test tkt3929-1.1 {
+  execsql {
+    INSERT INTO t1(a) VALUES(1);
+    INSERT INTO t1(a) VALUES(2);
+    SELECT * FROM t1;
+  }
+} {1 {value: 1} 2 {value: 2}}
+
+# Before it was fixed, the following provoked the bug, causing either an
+# assertion failure or a "database is malformed" error.
+#
+do_test tkt3930-1.2 {
+  for {set i 3} {$i < 100} {incr i} {
+    execsql { INSERT INTO t1(a) VALUES($i) }
+  }
+} {}
+
+integrity_check tkt3930-1.3
+finish_test
diff --git a/test/tkt3935.test b/test/tkt3935.test
new file mode 100644
index 0000000000000000000000000000000000000000..a4f1f61dad27a4452e6d6d13e0fcfded9fc1f7f3
--- /dev/null
+++ b/test/tkt3935.test
@@ -0,0 +1,57 @@
+# 2009 July 1
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that ticket #3935 has been fixed.
+#
+# $Id: tkt3935.test,v 1.2 2009/07/01 16:12:08 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt3935.1 {
+  execsql {
+    CREATE TABLE t1(a, b);
+    CREATE TABLE t2(c, d);
+  }
+} {}
+
+do_test tkt3935.2 {
+  execsql { SELECT j1.b FROM ( SELECT * FROM t1 INNER JOIN t2 ON a=c ) AS j1 }
+} {}
+do_test tkt3935.3 {
+  execsql { SELECT j1.b FROM (t1 INNER JOIN t2 ON a=c) AS j1 }
+} {}
+
+
+do_test tkt3935.4 {
+  catchsql { SELECT a FROM (t1) AS t ON b USING(a) }
+} {1 {near "USING": syntax error}}
+do_test tkt3935.5 {
+  catchsql { SELECT a FROM (t1) AS t ON b }
+} {1 {a JOIN clause is required before ON}}
+do_test tkt3935.6 {
+  catchsql { SELECT a FROM (SELECT * FROM t1) AS t ON b USING(a) }
+} {1 {near "USING": syntax error}}
+do_test tkt3935.7 {
+  catchsql { SELECT a FROM (SELECT * FROM t1) AS t ON b }
+} {1 {a JOIN clause is required before ON}}
+do_test tkt3935.8 {
+  catchsql { SELECT a FROM t1 AS t ON b }
+} {1 {a JOIN clause is required before ON}}
+do_test tkt3935.9 {
+  catchsql { SELECT a FROM t1 AS t ON b USING(a) }
+} {1 {near "USING": syntax error}}
+do_test tkt3935.10 {
+  catchsql { SELECT a FROM t1 AS t USING(a) }
+} {1 {a JOIN clause is required before USING}}
+
+finish_test
diff --git a/test/tkt3992.test b/test/tkt3992.test
new file mode 100644
index 0000000000000000000000000000000000000000..0d8a30f94d7386617765b374e184ae4c586dac22
--- /dev/null
+++ b/test/tkt3992.test
@@ -0,0 +1,81 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# $Id: tkt3992.test,v 1.1 2009/07/27 10:05:06 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tkt3992-1.1 {
+  execsql {
+    CREATE TABLE parameters1(
+       mountcnt    INT NOT NULL CHECK (typeof(mountcnt) == 'integer'),
+       version     REAL NOT NULL
+    );
+    INSERT INTO parameters1(mountcnt, version) VALUES(1, 1.0);
+
+    CREATE TABLE parameters2(
+       mountcnt    INT NOT NULL CHECK (typeof(mountcnt) == 'integer'),
+       version     REAL CHECK (typeof(version) == 'real')
+    );
+    INSERT INTO parameters2(mountcnt, version) VALUES(1, 1.0);
+  }
+} {}
+
+do_test tkt3992-1.2 {
+  execsql {
+    UPDATE parameters1 SET mountcnt = mountcnt + 1;
+    SELECT * FROM parameters1;
+  }
+} {2 1.0}
+
+do_test tkt3992-1.3 {
+  execsql {
+    UPDATE parameters2 SET mountcnt = mountcnt + 1;
+    SELECT * FROM parameters2;
+  }
+} {2 1.0}
+
+ifcapable altertable {
+  do_test tkt3992-2.1 {
+    execsql {
+      CREATE TABLE t1(a, b);
+      INSERT INTO t1 VALUES(1, 2);
+      ALTER TABLE t1 ADD COLUMN c DEFAULT 3;
+      SELECT * FROM t1;
+    }
+  } {1 2 3}
+  do_test tkt3992-2.2 {
+    execsql {
+      UPDATE t1 SET a = 'one';
+      SELECT * FROM t1;
+    }
+  } {one 2 3}
+}
+
+ifcapable trigger {
+  db function tcl eval
+  do_test tkt3992-2.3 {
+    execsql {
+      CREATE TABLE t2(a REAL, b REAL, c REAL);
+      INSERT INTO t2 VALUES(1, 2, 3);
+      CREATE TRIGGER tr2 BEFORE UPDATE ON t2 BEGIN
+        SELECT tcl('set res', typeof(new.c));
+      END;
+  
+      UPDATE t2 SET a = 'I';
+    }
+    set res
+  } {real}
+}
+
+
+finish_test
diff --git a/test/tkt3997.test b/test/tkt3997.test
new file mode 100644
index 0000000000000000000000000000000000000000..85e88db5913d69b1a13a41894e08e4e089146f12
--- /dev/null
+++ b/test/tkt3997.test
@@ -0,0 +1,73 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests to make sure #3997 is fixed.
+#
+# $Id: tkt3997.test,v 1.1 2009/07/28 13:30:31 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+proc reverse {lhs rhs} {
+  return [string compare $rhs $lhs]
+}
+proc usual {lhs rhs} {
+  return [string compare $lhs $rhs]
+}
+
+db collate reverse reverse
+db collate usual usual
+
+do_test tkt3997-1.1 {
+  execsql {
+    create table mytext(name BLOB);
+    INSERT INTO mytext VALUES('abc');
+    INSERT INTO mytext VALUES('acd');
+    INSERT INTO mytext VALUES('afe');
+  }
+} {}
+do_test tkt3997-1.2 {
+  execsql { 
+    SELECT name 
+    FROM mytext 
+    ORDER BY name COLLATE reverse 
+  }
+} {afe acd abc}
+do_test tkt3997-1.3 {
+  execsql { 
+    SELECT name 
+    FROM (SELECT name FROM mytext)  
+    ORDER BY name COLLATE reverse 
+  }
+} {afe acd abc}
+
+do_test tkt3997-2.1 {
+  execsql { 
+    CREATE TABLE mytext2(name COLLATE reverse);
+    INSERT INTO mytext2 SELECT name FROM mytext;
+  }
+} {}
+do_test tkt3997-2.2 {
+  execsql { 
+    SELECT name 
+    FROM (SELECT name FROM mytext2)  
+    ORDER BY name
+  }
+} {afe acd abc}
+do_test tkt3997-2.3 {
+  execsql { 
+    SELECT name 
+    FROM (SELECT name FROM mytext2)
+    ORDER BY name COLLATE usual
+  }
+} {abc acd afe}
+
+finish_test
diff --git a/test/tkt4018.test b/test/tkt4018.test
new file mode 100644
index 0000000000000000000000000000000000000000..77582a5c41d8834888b9c0afd7ec3498ddcb56f3
--- /dev/null
+++ b/test/tkt4018.test
@@ -0,0 +1,90 @@
+# 2009 August 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that ticket #4018 has been
+# fixed.  
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+do_not_use_codec
+
+proc testsql {sql} {
+  set fd [open tf_main.tcl w]
+  puts $fd [subst -nocommands {
+    sqlite3_test_control_pending_byte 0x0010000
+    sqlite3 db test.db
+    set rc [catch { db eval {$sql} } msg]
+    puts -nonewline "[set rc] {[set msg]}"
+    flush stdout
+    exit
+  }]
+  close $fd
+  set fd [open "| [info nameofexec] ./tf_main.tcl" r] 
+  set res [read $fd]
+  close $fd
+  return $res
+}
+
+do_test tkt4018-1.1 {
+  execsql {
+    CREATE TABLE t1(a, b);
+    BEGIN;
+    SELECT * FROM t1;
+  }
+} {}
+
+# The database is locked by connection [db]. Open and close a second
+# connection to test.db 10000 times. If file-descriptors are not being
+# reused, then the process will quickly exceed its maximum number of
+# file descriptors (1024 by default on linux).
+do_test tkt4018-1.2 {
+  for {set i 0} {$i < 10000} {incr i} {
+    sqlite3 db2 test.db
+    db2 close
+  }
+} {}
+
+# Now check that connection [db] is still holding a SHARED lock by
+# having a second process try to write the db.
+do_test tkt4018-1.3 {
+  testsql {INSERT INTO t1 VALUES(3, 4)}
+} {1 {database is locked}}
+
+# Sanity checking. Have [db] release the lock and then retry the
+# INSERT from the previous test case.
+do_test tkt4018-1.4 {
+  db eval COMMIT
+  testsql {INSERT INTO t1 VALUES(3, 4)}
+} {0 {}}
+
+# Check that reusing a file descriptor cannot change a read-only 
+# connection into a read-write connection.
+do_test tkt4018-2.1 {
+  sqlite3 db2 test.db
+  execsql {INSERT INTO t1 VALUES(1, 2)} db2
+} {}
+do_test tkt4018-2.2 {
+  execsql {
+    BEGIN;
+    SELECT * FROM t1 ORDER BY a;
+  }
+} {1 2 3 4}
+do_test tkt4018-2.3 {
+  db2 close
+  sqlite3 db2 test.db -readonly 1
+  execsql COMMIT
+  catchsql {INSERT INTO t1 VALUES(5, 6)} db2
+} {1 {attempt to write a readonly database}}
+db2 close
+
+finish_test
diff --git a/test/tokenize.test b/test/tokenize.test
new file mode 100644
index 0000000000000000000000000000000000000000..46fd4eeb75a0b30bb5031db18367640f4f3c0696
--- /dev/null
+++ b/test/tokenize.test
@@ -0,0 +1,65 @@
+# 2008 July 7
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script testing the tokenizer
+#
+# $Id: tokenize.test,v 1.1 2008/07/08 00:06:51 drh Exp $
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test tokenize-1.1 {
+  catchsql {SELECT 1.0e+}
+} {1 {unrecognized token: "1.0e"}}
+do_test tokenize-1.2 {
+  catchsql {SELECT 1.0E+}
+} {1 {unrecognized token: "1.0E"}}
+do_test tokenize-1.3 {
+  catchsql {SELECT 1.0e-}
+} {1 {unrecognized token: "1.0e"}}
+do_test tokenize-1.4 {
+  catchsql {SELECT 1.0E-}
+} {1 {unrecognized token: "1.0E"}}
+do_test tokenize-1.5 {
+  catchsql {SELECT 1.0e+/}
+} {1 {unrecognized token: "1.0e"}}
+do_test tokenize-1.6 {
+  catchsql {SELECT 1.0E+:}
+} {1 {unrecognized token: "1.0E"}}
+do_test tokenize-1.7 {
+  catchsql {SELECT 1.0e-:}
+} {1 {unrecognized token: "1.0e"}}
+do_test tokenize-1.8 {
+  catchsql {SELECT 1.0E-/}
+} {1 {unrecognized token: "1.0E"}}
+do_test tokenize-1.9 {
+  catchsql {SELECT 1.0F+5}
+} {1 {unrecognized token: "1.0F"}}
+do_test tokenize-1.10 {
+  catchsql {SELECT 1.0d-10}
+} {1 {unrecognized token: "1.0d"}}
+do_test tokenize-1.11 {
+  catchsql {SELECT 1.0e,5}
+} {1 {unrecognized token: "1.0e"}}
+do_test tokenize-1.12 {
+  catchsql {SELECT 1.0E.10}
+} {1 {unrecognized token: "1.0E"}}
+
+do_test tokenize-2.1 {
+  catchsql {SELECT 1, 2 /*}
+} {1 {near "*": syntax error}}
+do_test tokenize-2.2 {
+  catchsql {SELECT 1, 2 /* }
+} {0 {1 2}}
+
+
+finish_test
diff --git a/test/tpch01.test b/test/tpch01.test
new file mode 100644
index 0000000000000000000000000000000000000000..338ac48a07d8dab74ba933deb5ed1e3f93620a77
--- /dev/null
+++ b/test/tpch01.test
@@ -0,0 +1,200 @@
+# 2013-09-05
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# TPC-H test queries.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix tpch01
+
+do_execsql_test tpch01-1.0 {
+  CREATE TABLE NATION  ( N_NATIONKEY  INTEGER NOT NULL,
+                              N_NAME       CHAR(25) NOT NULL,
+                              N_REGIONKEY  INTEGER NOT NULL,
+                              N_COMMENT    VARCHAR(152));
+  CREATE TABLE REGION  ( R_REGIONKEY  INTEGER NOT NULL,
+                              R_NAME       CHAR(25) NOT NULL,
+                              R_COMMENT    VARCHAR(152));
+  CREATE TABLE PART  ( P_PARTKEY     INTEGER NOT NULL,
+                            P_NAME        VARCHAR(55) NOT NULL,
+                            P_MFGR        CHAR(25) NOT NULL,
+                            P_BRAND       CHAR(10) NOT NULL,
+                            P_TYPE        VARCHAR(25) NOT NULL,
+                            P_SIZE        INTEGER NOT NULL,
+                            P_CONTAINER   CHAR(10) NOT NULL,
+                            P_RETAILPRICE DECIMAL(15,2) NOT NULL,
+                            P_COMMENT     VARCHAR(23) NOT NULL );
+  CREATE TABLE SUPPLIER ( S_SUPPKEY     INTEGER NOT NULL,
+                               S_NAME        CHAR(25) NOT NULL,
+                               S_ADDRESS     VARCHAR(40) NOT NULL,
+                               S_NATIONKEY   INTEGER NOT NULL,
+                               S_PHONE       CHAR(15) NOT NULL,
+                               S_ACCTBAL     DECIMAL(15,2) NOT NULL,
+                               S_COMMENT     VARCHAR(101) NOT NULL);
+  CREATE TABLE PARTSUPP ( PS_PARTKEY     INTEGER NOT NULL,
+                               PS_SUPPKEY     INTEGER NOT NULL,
+                               PS_AVAILQTY    INTEGER NOT NULL,
+                               PS_SUPPLYCOST  DECIMAL(15,2)  NOT NULL,
+                               PS_COMMENT     VARCHAR(199) NOT NULL );
+  CREATE TABLE CUSTOMER ( C_CUSTKEY     INTEGER NOT NULL,
+                               C_NAME        VARCHAR(25) NOT NULL,
+                               C_ADDRESS     VARCHAR(40) NOT NULL,
+                               C_NATIONKEY   INTEGER NOT NULL,
+                               C_PHONE       CHAR(15) NOT NULL,
+                               C_ACCTBAL     DECIMAL(15,2)   NOT NULL,
+                               C_MKTSEGMENT  CHAR(10) NOT NULL,
+                               C_COMMENT     VARCHAR(117) NOT NULL);
+  CREATE TABLE ORDERS  ( O_ORDERKEY       INTEGER NOT NULL,
+                             O_CUSTKEY        INTEGER NOT NULL,
+                             O_ORDERSTATUS    CHAR(1) NOT NULL,
+                             O_TOTALPRICE     DECIMAL(15,2) NOT NULL,
+                             O_ORDERDATE      DATE NOT NULL,
+                             O_ORDERPRIORITY  CHAR(15) NOT NULL,  
+                             O_CLERK          CHAR(15) NOT NULL, 
+                             O_SHIPPRIORITY   INTEGER NOT NULL,
+                             O_COMMENT        VARCHAR(79) NOT NULL);
+  CREATE TABLE LINEITEM ( L_ORDERKEY    INTEGER NOT NULL,
+                               L_PARTKEY     INTEGER NOT NULL,
+                               L_SUPPKEY     INTEGER NOT NULL,
+                               L_LINENUMBER  INTEGER NOT NULL,
+                               L_QUANTITY    DECIMAL(15,2) NOT NULL,
+                               L_EXTENDEDPRICE  DECIMAL(15,2) NOT NULL,
+                               L_DISCOUNT    DECIMAL(15,2) NOT NULL,
+                               L_TAX         DECIMAL(15,2) NOT NULL,
+                               L_RETURNFLAG  CHAR(1) NOT NULL,
+                               L_LINESTATUS  CHAR(1) NOT NULL,
+                               L_SHIPDATE    DATE NOT NULL,
+                               L_COMMITDATE  DATE NOT NULL,
+                               L_RECEIPTDATE DATE NOT NULL,
+                               L_SHIPINSTRUCT CHAR(25) NOT NULL,
+                               L_SHIPMODE     CHAR(10) NOT NULL,
+                               L_COMMENT      VARCHAR(44) NOT NULL);
+  CREATE INDEX npki on nation(N_NATIONKEY);
+  CREATE INDEX rpki on region(R_REGIONKEY);
+  CREATE INDEX ppki on part(P_PARTKEY);
+  CREATE INDEX spki on supplier(S_SUPPKEY);
+  CREATE INDEX pspki on partsupp(PS_PARTKEY, PS_SUPPKEY);
+  CREATE INDEX cpki on customer(C_CUSTKEY);
+  CREATE INDEX opki on orders(O_ORDERKEY);
+  CREATE INDEX lpki on lineitem(L_ORDERKEY, L_LINENUMBER);
+  CREATE INDEX nrki on nation(n_regionkey);
+  CREATE INDEX snki on supplier(s_nationkey);
+  CREATE INDEX cnki on customer(c_nationkey);
+  CREATE INDEX ocki on orders(O_CUSTKEY);
+  CREATE INDEX odi on orders(O_ORDERDATE);
+  CREATE INDEX lpki2 on lineitem(L_PARTKEY);
+  CREATE INDEX lski on lineitem(L_SUPPKEY);
+  CREATE INDEX lsdi on lineitem(L_SHIPDATE);
+  CREATE INDEX lcdi on lineitem(L_COMMITDATE);
+  CREATE INDEX lrdi on lineitem(L_RECEIPTDATE);
+  CREATE INDEX bootleg_nni on nation(N_NAME);
+  CREATE INDEX bootleg_psi on part(p_size);
+  CREATE INDEX bootleg_pti on part(p_type);
+  ANALYZE sqlite_master;
+  INSERT INTO sqlite_stat1 VALUES('LINEITEM','lrdi','600572 236');
+  INSERT INTO sqlite_stat1 VALUES('LINEITEM','lcdi','600572 244');
+  INSERT INTO sqlite_stat1 VALUES('LINEITEM','lsdi','600572 238');
+  INSERT INTO sqlite_stat1 VALUES('LINEITEM','lski','600572 601');
+  INSERT INTO sqlite_stat1 VALUES('LINEITEM','lpki2','600572 31');
+  INSERT INTO sqlite_stat1 VALUES('LINEITEM','lpki','600572 5 1');
+  INSERT INTO sqlite_stat1 VALUES('ORDERS','odi','150000 63');
+  INSERT INTO sqlite_stat1 VALUES('ORDERS','ocki','150000 15');
+  INSERT INTO sqlite_stat1 VALUES('ORDERS','opki','150000 1');
+  INSERT INTO sqlite_stat1 VALUES('CUSTOMER','cnki','15000 600');
+  INSERT INTO sqlite_stat1 VALUES('CUSTOMER','cpki','15000 1');
+  INSERT INTO sqlite_stat1 VALUES('PARTSUPP','pspki','80000 4 1');
+  INSERT INTO sqlite_stat1 VALUES('SUPPLIER','snki','1000 40');
+  INSERT INTO sqlite_stat1 VALUES('SUPPLIER','spki','1000 1');
+  INSERT INTO sqlite_stat1 VALUES('PART','bootleg_pti','20000 134');
+  INSERT INTO sqlite_stat1 VALUES('PART','bootleg_psi','20000 400');
+  INSERT INTO sqlite_stat1 VALUES('PART','ppki','20000 1');
+  INSERT INTO sqlite_stat1 VALUES('REGION','rpki','5 1');
+  INSERT INTO sqlite_stat1 VALUES('NATION','bootleg_nni','25 1');
+  INSERT INTO sqlite_stat1 VALUES('NATION','nrki','25 5');
+  INSERT INTO sqlite_stat1 VALUES('NATION','npki','25 1');
+  ANALYZE sqlite_master;
+} {}
+
+do_test tpch01-1.1 {
+  unset -nocomplain ::eqpres
+  set ::eqpres [db eval {EXPLAIN QUERY PLAN
+       select
+               o_year,
+               sum(case
+                       when nation = 'EGYPT' then volume
+                       else 0
+               end) / sum(volume) as mkt_share
+       from
+               (
+                       select
+                               strftime('%Y', o_orderdate) as o_year,
+                               l_extendedprice * (1 - l_discount) as volume,
+                               n2.n_name as nation
+                       from
+                               part,
+                               supplier,
+                               lineitem,
+                               orders,
+                               customer,
+                               nation n1,
+                               nation n2,
+                               region
+                       where
+                               p_partkey = l_partkey
+                               and s_suppkey = l_suppkey
+                               and l_orderkey = o_orderkey
+                               and o_custkey = c_custkey
+                               and c_nationkey = n1.n_nationkey
+                               and n1.n_regionkey = r_regionkey
+                               and r_name = 'MIDDLE EAST'
+                               and s_nationkey = n2.n_nationkey
+                               and o_orderdate between  '1995-01-01' and '1996-12-31'
+                               and p_type = 'LARGE PLATED STEEL'
+               ) as all_nations
+       group by
+               o_year
+       order by
+               o_year;}]
+  set ::eqpres
+} {/*SEARCH part USING INDEX bootleg_pti *SEARCH lineitem USING INDEX lpki2*/}
+do_test tpch01-1.1b {
+  set ::eqpres
+} {/.* customer .* n1 .*/}
+do_test tpch01-1.1c {
+  set ::eqpres
+} {/.* supplier .* n2 .*/}
+
+do_eqp_test tpch01-1.2 {
+select
+    c_custkey,    c_name,    sum(l_extendedprice * (1 - l_discount)) as revenue,
+    c_acctbal,    n_name,    c_address,    c_phone,    c_comment
+from
+    customer,    orders,    lineitem,    nation
+where
+    c_custkey = o_custkey    and l_orderkey = o_orderkey
+    and o_orderdate >=  '1994-08-01'    and o_orderdate < date('1994-08-01', '+3 month')
+    and l_returnflag = 'R'    and c_nationkey = n_nationkey
+group by
+    c_custkey,    c_name,    c_acctbal,    c_phone,    n_name, c_address,    c_comment
+order by
+    revenue desc;
+} {
+  QUERY PLAN
+  |--SEARCH orders USING INDEX odi (O_ORDERDATE>? AND O_ORDERDATE<?)
+  |--SEARCH customer USING INDEX cpki (C_CUSTKEY=?)
+  |--SEARCH nation USING INDEX npki (N_NATIONKEY=?)
+  |--SEARCH lineitem USING INDEX lpki (L_ORDERKEY=?)
+  |--USE TEMP B-TREE FOR GROUP BY
+  `--USE TEMP B-TREE FOR ORDER BY
+}
+
+finish_test
diff --git a/test/trace.test b/test/trace.test
new file mode 100644
index 0000000000000000000000000000000000000000..37914857fca8015814a1cc5fbeed7104863de942
--- /dev/null
+++ b/test/trace.test
@@ -0,0 +1,269 @@
+# 2004 Jun 29
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests for the "sqlite3_trace()" API.
+#
+# $Id: trace.test,v 1.8 2009/04/07 14:14:23 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !trace {
+  finish_test
+  return
+}
+
+set ::stmtlist {}
+do_test trace-1.1 {
+  set rc [catch {db trace 1 2 3} msg]
+  lappend rc $msg
+} {1 {wrong # args: should be "db trace ?CALLBACK?"}}
+proc trace_proc cmd {
+  lappend ::stmtlist [string trim $cmd]
+}
+do_test trace-1.2 {
+  db trace trace_proc
+  db trace
+} {trace_proc}
+do_test trace-1.3 {
+  execsql {
+    CREATE TABLE t1(a,b);
+    INSERT INTO t1 VALUES(1,2);
+    SELECT * FROM t1;
+  }
+} {1 2}
+do_test trace-1.4 {
+  set ::stmtlist
+} {{CREATE TABLE t1(a,b);} {INSERT INTO t1 VALUES(1,2);} {SELECT * FROM t1;}}
+do_test trace-1.5 {
+  db trace {}
+  db trace
+} {}
+do_test trace-1.6 {
+  db eval {
+     CREATE TABLE t1b(x TEXT PRIMARY KEY, y);
+     INSERT INTO t1b VALUES('abc','def'),('ghi','jkl'),('mno','pqr');
+  }
+  set ::stmtlist {}
+  set xyzzy a*
+  db trace trace_proc
+  db eval {
+     SELECT y FROM t1b WHERE x GLOB $xyzzy
+  }
+} {def}
+do_test trace-1.7 {
+  set ::stmtlist
+} {{SELECT y FROM t1b WHERE x GLOB 'a*'}}
+db trace {}
+
+# If we prepare a statement and execute it multiple times, the trace
+# happens on each execution.
+#
+db close
+sqlite3 db test.db; set DB [sqlite3_connection_pointer db]
+do_test trace-2.1 {
+  set STMT [sqlite3_prepare $DB {INSERT INTO t1 VALUES(2,3)} -1 TAIL]
+  db trace trace_proc
+  proc trace_proc sql {
+    global TRACE_OUT
+    lappend TRACE_OUT [string trim $sql]
+  }
+  set TRACE_OUT {}
+  sqlite3_step $STMT
+  set TRACE_OUT
+} {{INSERT INTO t1 VALUES(2,3)}}
+do_test trace-2.2 {
+  set TRACE_OUT {}
+  sqlite3_reset $STMT
+  set TRACE_OUT 
+} {}
+do_test trace-2.3 {
+  sqlite3_step $STMT
+  set TRACE_OUT
+} {{INSERT INTO t1 VALUES(2,3)}}
+do_test trace-2.4 {
+  set TRACE_OUT {}
+  execsql {SELECT * FROM t1}
+} {1 2 2 3 2 3}
+do_test trace-2.5 {
+  set TRACE_OUT
+} {{SELECT * FROM t1}}
+catch {sqlite3_finalize $STMT}
+
+do_test trace-2.6 {
+  set TRACE_OUT {}
+  db eval VACUUM
+  set TRACE_OUT
+} {VACUUM}
+
+# Similar tests, but this time for profiling.
+# 
+do_test trace-3.1 {
+  set rc [catch {db profile 1 2 3} msg]
+  lappend rc $msg
+} {1 {wrong # args: should be "db profile ?CALLBACK?"}}
+set ::stmtlist {}
+proc profile_proc {cmd tm} {
+  lappend ::stmtlist [string trim $cmd]
+}
+do_test trace-3.2 {
+  db trace {}
+  db profile profile_proc
+  db profile
+} {profile_proc}
+do_test trace-3.3 {
+  execsql {
+    CREATE TABLE t2(a,b);
+    INSERT INTO t2 VALUES(1,2);
+    SELECT * FROM t2;
+  }
+} {1 2}
+do_test trace-3.4 {
+  set ::stmtlist
+} {{CREATE TABLE t2(a,b);} {INSERT INTO t2 VALUES(1,2);} {SELECT * FROM t2;}}
+do_test trace-3.5 {
+  db profile {}
+  db profile
+} {}
+
+# If we prepare a statement and execute it multiple times, the profile
+# happens on each execution.
+#
+db close
+sqlite3 db test.db; set DB [sqlite3_connection_pointer db]
+do_test trace-4.1 {
+  set STMT [sqlite3_prepare $DB {INSERT INTO t2 VALUES(2,3)} -1 TAIL]
+  db trace trace_proc
+  proc profile_proc {sql tm} {
+    global TRACE_OUT
+    lappend TRACE_OUT [string trim $sql]
+  }
+  set TRACE_OUT {}
+  sqlite3_step $STMT
+  set TRACE_OUT
+} {{INSERT INTO t2 VALUES(2,3)}}
+do_test trace-4.2 {
+  set TRACE_OUT {}
+  sqlite3_reset $STMT
+  set TRACE_OUT 
+} {}
+do_test trace-4.3 {
+  sqlite3_step $STMT
+  set TRACE_OUT
+} {{INSERT INTO t2 VALUES(2,3)}}
+do_test trace-4.4 {
+  set TRACE_OUT {}
+  execsql {SELECT * FROM t1}
+} {1 2 2 3 2 3}
+do_test trace-4.5 {
+  set TRACE_OUT
+} {{SELECT * FROM t1}}
+catch {sqlite3_finalize $STMT}
+
+# 3.8.11: Profile output even if the statement is not run to completion.
+do_test trace-4.6 {
+  set TRACE_OUT {}
+  db eval {SELECT * FROM t1} {} {if {$a>=1} break}
+  set TRACE_OUT
+} {{SELECT * FROM t1}}
+
+
+# Trigger tracing.
+#
+ifcapable trigger {
+  do_test trace-5.1 {
+    db eval {
+      CREATE TRIGGER r1t1 AFTER UPDATE ON t1 BEGIN
+        UPDATE t2 SET a=new.a WHERE rowid=new.rowid;
+      END;
+      CREATE TRIGGER r1t2 AFTER UPDATE ON t2 BEGIN
+        SELECT 'hello';
+      END;
+    }
+    set TRACE_OUT {}
+    proc trace_proc cmd {
+      lappend ::TRACE_OUT [string trim $cmd]
+    }
+    db eval {
+      UPDATE t1 SET a=a+1;
+    }
+    set TRACE_OUT
+  } {{UPDATE t1 SET a=a+1;} {-- TRIGGER r1t1} {-- UPDATE t2 SET a=new.a WHERE rowid=new.rowid} {-- TRIGGER r1t2} {-- SELECT 'hello'} {-- TRIGGER r1t1} {-- UPDATE t2 SET a=new.a WHERE rowid=new.rowid} {-- TRIGGER r1t2} {-- SELECT 'hello'} {-- TRIGGER r1t1} {-- UPDATE t2 SET a=new.a WHERE rowid=new.rowid} {-- TRIGGER r1t2} {-- SELECT 'hello'}}
+}
+
+# With 3.6.21, we add the ability to expand host parameters in the trace
+# output.  Test this feature.
+#
+do_test trace-6.1 {
+  set ::t6int [expr {3+3}]
+  set ::t6real [expr {1.5*4.0}]
+  set ::t6str {test-six y'all}
+  db eval {SELECT x'3031323334' AS x} {set ::t6blob $x}
+  unset -nocomplain t6null
+  set TRACE_OUT {}
+  execsql {SELECT $::t6int, $::t6real, $t6str, $t6blob, $t6null}
+} {6 6.0 {test-six y'all} 01234 {}}
+do_test trace-6.2 {
+  set TRACE_OUT
+} {{SELECT 6, 6.0, 'test-six y''all', x'3031323334', NULL}}
+do_test trace-6.3 {
+  set TRACE_OUT {}
+  execsql {SELECT $::t6int, ?1, $::t6int}
+} {6 6 6}
+do_test trace-6.4 {
+  set TRACE_OUT
+} {{SELECT 6, 6, 6}}
+do_test trace-6.5 {
+  execsql {CREATE TABLE t6([$::t6int],"?1"); INSERT INTO t6 VALUES(1,2)}
+  set TRACE_OUT {}
+  execsql {SELECT '$::t6int', [$::t6int], $::t6int, ?1, "?1", $::t6int FROM t6}
+} {{$::t6int} 1 6 6 2 6}
+do_test trace-6.6 {
+  set TRACE_OUT
+} {{SELECT '$::t6int', [$::t6int], 6, 6, "?1", 6 FROM t6}}
+
+# Do these same tests with a UTF16 database.
+#
+do_test trace-6.100 {
+  db close
+  sqlite3 db :memory:
+  db eval {
+     PRAGMA encoding=UTF16be;
+     CREATE TABLE t6([$::t6str],"?1");
+     INSERT INTO t6 VALUES(1,2);
+  }
+  db trace trace_proc
+  set TRACE_OUT {}
+  execsql {SELECT '$::t6str', [$::t6str], $::t6str, ?1, "?1", $::t6str FROM t6}
+} {{$::t6str} 1 {test-six y'all} {test-six y'all} 2 {test-six y'all}}
+do_test trace-6.101 {
+  set TRACE_OUT
+} {{SELECT '$::t6str', [$::t6str], 'test-six y''all', 'test-six y''all', "?1", 'test-six y''all' FROM t6}}
+
+do_test trace-6.200 {
+  db close
+  sqlite3 db :memory:
+  db eval {
+     PRAGMA encoding=UTF16le;
+     CREATE TABLE t6([$::t6str],"?1");
+     INSERT INTO t6 VALUES(1,2);
+  }
+  db trace trace_proc
+  set TRACE_OUT {}
+  execsql {SELECT '$::t6str', [$::t6str], $::t6str, ?1, "?1", $::t6str FROM t6}
+} {{$::t6str} 1 {test-six y'all} {test-six y'all} 2 {test-six y'all}}
+do_test trace-6.201 {
+  set TRACE_OUT
+} {{SELECT '$::t6str', [$::t6str], 'test-six y''all', 'test-six y''all', "?1", 'test-six y''all' FROM t6}}
+
+
+finish_test
diff --git a/test/trace2.test b/test/trace2.test
new file mode 100644
index 0000000000000000000000000000000000000000..a3f0aeb878004104894099ddc80abd364b633a0d
--- /dev/null
+++ b/test/trace2.test
@@ -0,0 +1,155 @@
+# 2011 Jan 21
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests for the "sqlite3_trace()" API. Specifically,
+# it tests the special handling of nested SQL statements (those executed
+# by virtual table or user function callbacks). These statements are treated
+# differently in two respects:
+#
+#   1. Each line of the statement is prefixed with "-- " to turn it into
+#      an SQL comment.
+#
+#   2. Parameter expansion is not performed.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable !trace { finish_test ; return }
+set ::testprefix trace2
+
+proc sql {zSql} { db one $zSql }
+proc trace {zSql} { lappend ::trace $zSql }
+
+db func sql sql
+db trace trace
+
+proc do_trace_test {tn sql expected} {
+  # Test that the list of string passed to the trace callback when $sql
+  # is executed is equivalent to the list of strings in $expected.
+  #
+  set ::trace [list]
+  execsql $sql
+  uplevel do_test $tn [list {set ::trace}] [list [list {*}$expected]]
+}
+
+proc do_trace_select_test {tn sql expected} {
+
+  uplevel [list do_trace_test ${tn}.a $sql $expected]
+
+  # Now execute each SQL statement passed to the trace callback in the
+  # block above. Check that this causes the same set of strings to be
+  # passed to the trace callback again. i.e. that executing the output
+  # of the trace callback is equivalent to the SQL script in $sql.
+  #
+  set sqllist $::trace
+  set ::trace [list]
+  foreach item $sqllist { execsql $item }
+  uplevel do_test $tn.b [list {set ::trace}] [list $sqllist]
+}
+
+do_trace_select_test 1.1  {
+  SELECT 1, 2, 3;
+} {
+  "SELECT 1, 2, 3;"
+}
+
+do_trace_select_test 1.2  {
+  SELECT sql('SELECT 1, 2, 3');
+} {
+  "SELECT sql('SELECT 1, 2, 3');"
+  "-- SELECT 1, 2, 3"
+}
+
+do_trace_select_test 1.3  {
+  SELECT sql('SELECT 1, 
+    2, 
+    3'
+  );
+} {
+  "SELECT sql('SELECT 1, 
+    2, 
+    3'
+  );"
+  "-- SELECT 1, 
+--     2, 
+--     3"
+}
+
+do_trace_select_test 1.4  {
+  SELECT sql('SELECT 1, 
+
+
+    3'
+  );
+} {
+  "SELECT sql('SELECT 1, 
+
+
+    3'
+  );"
+  "-- SELECT 1, 
+-- 
+-- 
+--     3"
+}
+
+do_trace_select_test 1.5  {
+  SELECT $var, sql('SELECT 1, 
+    $var, 
+    3'
+  );
+} {
+  "SELECT NULL, sql('SELECT 1, 
+    $var, 
+    3'
+  );"
+  "-- SELECT 1, 
+--     $var, 
+--     3"
+}
+
+ifcapable fts3 {
+  do_execsql_test 2.1 {
+    CREATE VIRTUAL TABLE x1 USING fts4;
+    INSERT INTO x1 VALUES('Cloudy, with a high near 16');
+    INSERT INTO x1 VALUES('Wind chill values as low as -13');
+  }
+
+  do_trace_test 2.2 {
+    INSERT INTO x1 VALUES('North northwest wind between 8 and 14 mph');
+  } {
+    "INSERT INTO x1 VALUES('North northwest wind between 8 and 14 mph');" 
+    "-- DELETE FROM 'main'.'x1_segdir' WHERE level = ?"
+    "-- INSERT INTO 'main'.'x1_content' VALUES(?,(?))" 
+    "-- REPLACE INTO 'main'.'x1_docsize' VALUES(?,?)" 
+    "-- SELECT value FROM 'main'.'x1_stat' WHERE id=?" 
+    "-- REPLACE INTO 'main'.'x1_stat' VALUES(?,?)" 
+    "-- SELECT (SELECT max(idx) FROM 'main'.'x1_segdir' WHERE level = ?) + 1" 
+    "-- SELECT coalesce((SELECT max(blockid) FROM 'main'.'x1_segments') + 1, 1)"
+    "-- REPLACE INTO 'main'.'x1_segdir' VALUES(?,?,?,?,?,?)"
+    "-- SELECT level, idx, end_block FROM 'main'.'x1_segdir' WHERE level BETWEEN ? AND ? ORDER BY level DESC, idx ASC"
+  }
+
+  do_trace_test 2.3 {
+    INSERT INTO x1(x1) VALUES('optimize');
+  } {
+    "INSERT INTO x1(x1) VALUES('optimize');"
+    "-- SELECT ? UNION SELECT level / (1024 * ?) FROM 'main'.'x1_segdir'"
+    "-- SELECT idx, start_block, leaves_end_block, end_block, root FROM 'main'.'x1_segdir' WHERE level BETWEEN ? AND ?ORDER BY level DESC, idx ASC"
+    "-- SELECT max(level) FROM 'main'.'x1_segdir' WHERE level BETWEEN ? AND ?"
+    "-- SELECT coalesce((SELECT max(blockid) FROM 'main'.'x1_segments') + 1, 1)"
+    "-- DELETE FROM 'main'.'x1_segdir' WHERE level BETWEEN ? AND ?"
+    "-- REPLACE INTO 'main'.'x1_segdir' VALUES(?,?,?,?,?,?)"
+  }
+}
+
+finish_test
diff --git a/test/trace3.test b/test/trace3.test
new file mode 100644
index 0000000000000000000000000000000000000000..496cc2360a31bb6074312ce5c4194bf94bb09b3f
--- /dev/null
+++ b/test/trace3.test
@@ -0,0 +1,346 @@
+# 2016 July 14
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The focus of
+# this test file is the "sqlite3_trace_v2()" and "sqlite3_expanded_sql()"
+# APIs.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable !trace { finish_test ; return }
+set ::testprefix trace3
+
+proc trace_v2_error { args } {
+  lappend ::stmtlist(error) [string trim $args]
+  error "trace error"; # this will be ignored.
+}
+proc trace_v2_record { args } {
+  lappend ::stmtlist(record) [string trim $args]
+}
+proc trace_v2_nop { args } {}; # do nothing.
+
+do_test trace3-1.0 {
+  execsql {
+    CREATE TABLE t1(a,b);
+    INSERT INTO t1 VALUES(1,NULL);
+    INSERT INTO t1 VALUES(2,-1);
+    INSERT INTO t1 VALUES(3,0);
+    INSERT INTO t1 VALUES(4,1);
+    INSERT INTO t1 VALUES(5,-2147483648);
+    INSERT INTO t1 VALUES(6,2147483647);
+    INSERT INTO t1 VALUES(7,-9223372036854775808);
+    INSERT INTO t1 VALUES(8,9223372036854775807);
+    INSERT INTO t1 VALUES(9,-1.0);
+    INSERT INTO t1 VALUES(10,0.0);
+    INSERT INTO t1 VALUES(11,1.0);
+    INSERT INTO t1 VALUES(12,'');
+    INSERT INTO t1 VALUES(13,'1');
+    INSERT INTO t1 VALUES(14,'one');
+    INSERT INTO t1 VALUES(15,x'abcd0123');
+    INSERT INTO t1 VALUES(16,x'4567cdef');
+  }
+} {}
+
+do_test trace3-1.1 {
+  set rc [catch {db trace_v2 1 2 3} msg]
+  lappend rc $msg
+} {1 {wrong # args: should be "db trace_v2 ?CALLBACK? ?MASK?"}}
+do_test trace3-1.2 {
+  set rc [catch {db trace_v2 1 bad} msg]
+  lappend rc $msg
+} {1 {bad trace type "bad": must be statement, profile, row, or close}}
+
+do_test trace3-2.1 {
+  db trace_v2 trace_v2_nop
+  db trace_v2
+} {trace_v2_nop}
+
+do_test trace3-3.1 {
+  unset -nocomplain ::stmtlist
+  db trace_v2 trace_v2_nop
+  execsql {
+    SELECT a, b FROM t1 ORDER BY a;
+  }
+  array get ::stmtlist
+} {}
+do_test trace3-3.2 {
+  set ::stmtlist(error) {}
+  db trace_v2 trace_v2_error
+  execsql {
+    SELECT a, b FROM t1 ORDER BY a;
+  }
+  set ::stmtlist(error)
+} {/^\{-?\d+ \{SELECT a, b FROM t1 ORDER BY a;\}\}$/}
+do_test trace3-3.3 {
+  set ::stmtlist(record) {}
+  db trace_v2 trace_v2_record
+  execsql {
+    SELECT a, b FROM t1 ORDER BY a;
+  }
+  set ::stmtlist(record)
+} {/^\{-?\d+ \{SELECT a, b FROM t1 ORDER BY a;\}\}$/}
+do_test trace3-3.4 {
+  set ::stmtlist(record) {}
+  db trace_v2 trace_v2_record statement
+  execsql {
+    SELECT a, b FROM t1 ORDER BY a;
+  }
+  set ::stmtlist(record)
+} {/^\{-?\d+ \{SELECT a, b FROM t1 ORDER BY a;\}\}$/}
+do_test trace3-3.5 {
+  set ::stmtlist(record) {}
+  db trace_v2 trace_v2_record 1
+  execsql {
+    SELECT a, b FROM t1 ORDER BY a;
+  }
+  set ::stmtlist(record)
+} {/^\{-?\d+ \{SELECT a, b FROM t1 ORDER BY a;\}\}$/}
+
+do_test trace3-4.1 {
+  set ::stmtlist(record) {}
+  db trace_v2 trace_v2_record profile
+  execsql {
+    SELECT a, b FROM t1 ORDER BY a;
+  }
+  set ::stmtlist(record)
+} {/^\{-?\d+ -?\d+\}$/}
+do_test trace3-4.2 {
+  set ::stmtlist(record) {}
+  db trace_v2 trace_v2_record 2
+  execsql {
+    SELECT a, b FROM t1 ORDER BY a;
+  }
+  set ::stmtlist(record)
+} {/^\{-?\d+ -?\d+\}$/}
+
+do_test trace3-4.3 {
+  set ::stmtlist(record) {}
+  db trace_v2 trace_v2_record profile
+  execsql {
+    SELECT a, b FROM t1 ORDER BY a;
+  }
+  set stmt [lindex [lindex $::stmtlist(record) 0] 0]
+  set ns [lindex [lindex $::stmtlist(record) 0] 1]
+  list $stmt [expr {$ns >= 0 && $ns <= 9999999}]; # less than 0.010 seconds
+} {/^-?\d+ 1$/}
+do_test trace3-4.4 {
+  set cnt 0
+  while {1} {
+    set ::stmtlist(record) {}
+    db trace_v2 trace_v2_record 2
+    execsql {
+      SELECT a, b FROM t1 ORDER BY a;
+    }
+    set stmt [lindex [lindex $::stmtlist(record) 0] 0]
+    set ns [lindex [lindex $::stmtlist(record) 0] 1]
+    if {$ns<0 || $ns>9999999} {  #less than 0.010 seconds
+      incr cnt
+      if {$cnt>3} {
+        set res "time out of bounds.  Expected less than 99999999.  Got $ns"
+        break
+      }
+    } else {
+      set res 1
+      break
+    }
+  }
+  list $stmt $res
+} {/^-?\d+ 1$/}
+
+do_test trace3-5.1 {
+  set ::stmtlist(record) {}
+  db trace_v2 trace_v2_record row
+  execsql {
+    SELECT a, b FROM t1 ORDER BY a;
+  }
+  set ::stmtlist(record)
+} "/^[string trim [string repeat {-?\d+ } 16]]\$/"
+do_test trace3-5.2 {
+  set ::stmtlist(record) {}
+  db trace_v2 trace_v2_record 4
+  execsql {
+    SELECT a, b FROM t1 ORDER BY a;
+  }
+  set ::stmtlist(record)
+} "/^[string trim [string repeat {-?\d+ } 16]]\$/"
+
+do_test trace3-6.1 {
+  set ::stmtlist(record) {}
+  db trace_v2 trace_v2_record {profile row}
+  execsql {
+    SELECT a, b FROM t1 ORDER BY a;
+  }
+  set ::stmtlist(record)
+} "/^[string trim [string repeat {-?\d+ } 16]] \\\{-?\\d+ -?\\d+\\\}\$/"
+do_test trace3-6.2 {
+  set ::stmtlist(record) {}
+  db trace_v2 trace_v2_record {statement profile row}
+  execsql {
+    SELECT a, b FROM t1 ORDER BY a;
+  }
+  set ::stmtlist(record)
+} "/^\\\{-?\\d+ \\\{SELECT a, b FROM t1 ORDER BY a;\\\}\\\} [string trim \
+[string repeat {-?\d+ } 16]] \\\{-?\\d+ -?\\d+\\\}\$/"
+
+do_test trace3-7.1 {
+  set DB [sqlite3_connection_pointer db]
+
+  set STMT [sqlite3_prepare_v2 $DB \
+      "SELECT a, b FROM t1 WHERE b = ? ORDER BY a;" -1 TAIL]
+} {/^[0-9A-Fa-f]+$/}
+
+do_test trace3-8.1 {
+  list [sqlite3_bind_null $STMT 1] [sqlite3_expanded_sql $STMT]
+} {{} {SELECT a, b FROM t1 WHERE b = NULL ORDER BY a;}}
+do_test trace3-8.2 {
+  list [sqlite3_bind_int $STMT 1 123] [sqlite3_expanded_sql $STMT]
+} {{} {SELECT a, b FROM t1 WHERE b = 123 ORDER BY a;}}
+do_test trace3-8.3 {
+  list [sqlite3_bind_int64 $STMT 1 123] [sqlite3_expanded_sql $STMT]
+} {{} {SELECT a, b FROM t1 WHERE b = 123 ORDER BY a;}}
+do_test trace3-8.4 {
+  list [sqlite3_bind_text $STMT 1 "some string" 11] \
+      [sqlite3_expanded_sql $STMT]
+} {{} {SELECT a, b FROM t1 WHERE b = 'some string' ORDER BY a;}}
+do_test trace3-8.5 {
+  list [sqlite3_bind_text $STMT 1 "some 'bad' string" 17] \
+      [sqlite3_expanded_sql $STMT]
+} {{} {SELECT a, b FROM t1 WHERE b = 'some ''bad'' string' ORDER BY a;}}
+do_test trace3-8.6 {
+  list [sqlite3_bind_double $STMT 1 123] [sqlite3_expanded_sql $STMT]
+} {{} {SELECT a, b FROM t1 WHERE b = 123.0 ORDER BY a;}}
+do_test trace3-8.7 {
+  list [sqlite3_bind_text16 $STMT 1 \
+      [encoding convertto unicode hi\000yall\000] 16] \
+      [sqlite3_expanded_sql $STMT]
+} {{} {SELECT a, b FROM t1 WHERE b = 'hi' ORDER BY a;}}
+do_test trace3-8.8 {
+  list [sqlite3_bind_blob $STMT 1 "\x12\x34\x56" 3] \
+      [sqlite3_expanded_sql $STMT]
+} {{} {SELECT a, b FROM t1 WHERE b = x'123456' ORDER BY a;}}
+do_test trace3-8.9 {
+  list [sqlite3_bind_blob $STMT 1 "\xAB\xCD\xEF" 3] \
+      [sqlite3_expanded_sql $STMT]
+} {{} {SELECT a, b FROM t1 WHERE b = x'abcdef' ORDER BY a;}}
+
+do_test trace3-9.1 {
+  sqlite3_finalize $STMT
+} {SQLITE_OK}
+
+do_test trace3-10.1 {
+  db trace_v2 ""
+  db trace_v2
+} {}
+do_test trace3-10.2 {
+  unset -nocomplain ::stmtlist
+  db trace_v2 "" {statement profile row}
+  execsql {
+    SELECT a, b FROM t1 ORDER BY a;
+  }
+  array get ::stmtlist
+} {}
+
+do_test trace3-11.1 {
+  set ::stmtlist(record) {}
+  db trace_v2 trace_v2_record close
+  db close
+  set ::stmtlist(record)
+} {/^-?\d+$/}
+
+reset_db
+
+do_test trace3-11.2 {
+  set ::stmtlist(record) {}
+  db trace_v2 trace_v2_record 8
+  db close
+  set ::stmtlist(record)
+} {/^-?\d+$/}
+
+#-------------------------------------------------------------------------
+reset_db
+do_test 12.1.0 {
+  set ::STMT [sqlite3_prepare_v2 $DB \
+    "SELECT ?1 || ?1 || ?1 || ?2 || ?3 || ?4 || ? || ?1 || ?" -1 TAIL
+  ]
+  sqlite3_bind_parameter_count $::STMT
+} {6}
+
+do_test 12.1.1 {
+  sqlite3_bind_text $STMT 1 "A" 1
+  sqlite3_bind_text $STMT 2 "B" 1
+  sqlite3_bind_text $STMT 3 "C" 1
+  sqlite3_bind_text $STMT 4 "D" 1
+  sqlite3_bind_text $STMT 5 "E" 1
+  sqlite3_bind_text $STMT 6 "F" 1
+  sqlite3_expanded_sql $STMT
+} {SELECT 'A' || 'A' || 'A' || 'B' || 'C' || 'D' || 'E' || 'A' || 'F'}
+
+do_test 12.1.2 {
+  sqlite3_step $STMT
+  sqlite3_column_text $STMT 0
+} {AAABCDEAF}
+
+do_test 12.1.3 {
+  sqlite3_finalize $STMT
+} {SQLITE_OK}
+
+do_test 12.2.0 {
+  execsql {
+    CREATE TABLE nameFtsFuzzySearchTable(
+      word, distance, langid, score, top, scope
+    );
+  }
+  set ::STMT [sqlite3_prepare_v2 $DB {
+    SELECT
+      substr(word,1,length(?1)-1) AS term,
+      distance,
+      langid,
+      score
+    FROM
+      nameFtsFuzzySearchTable
+    WHERE
+      word MATCH (?1) AND abs(?1) = abs(term)
+      AND top = ?2 AND distance > ?3 AND scope = ?4 AND langid = ?
+    GROUP BY term, langid 
+    HAVING (1.0 - ((distance / 100.0) / CAST( length(?1) - 1 AS REAL ))) >= ?
+  } -1 TAIL]
+  sqlite3_bind_parameter_count $::STMT
+} {6}
+
+do_test 12.1.1 {
+  sqlite3_bind_text $STMT 1 "A" 1
+  sqlite3_bind_text $STMT 2 "B" 1
+  sqlite3_bind_text $STMT 3 "C" 1
+  sqlite3_bind_text $STMT 4 "D" 1
+  sqlite3_bind_text $STMT 5 "E" 1
+  sqlite3_bind_text $STMT 6 "F" 1
+  sqlite3_expanded_sql $STMT
+} {
+    SELECT
+      substr(word,1,length('A')-1) AS term,
+      distance,
+      langid,
+      score
+    FROM
+      nameFtsFuzzySearchTable
+    WHERE
+      word MATCH ('A') AND abs('A') = abs(term)
+      AND top = 'B' AND distance > 'C' AND scope = 'D' AND langid = 'E'
+    GROUP BY term, langid 
+    HAVING (1.0 - ((distance / 100.0) / CAST( length('A') - 1 AS REAL ))) >= 'F'
+  }
+
+do_test 12.1.2 {
+  sqlite3_finalize $STMT
+} {SQLITE_OK}
+
+
+finish_test
diff --git a/test/trans.test b/test/trans.test
new file mode 100644
index 0000000000000000000000000000000000000000..6b8ad217a02ed9db09bd6baf0d4102ddf7d42eed
--- /dev/null
+++ b/test/trans.test
@@ -0,0 +1,994 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is database locks.
+#
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Create several tables to work with.
+#
+wal_set_journal_mode
+do_test trans-1.0 {
+  execsql {
+    CREATE TABLE one(a int PRIMARY KEY, b text);
+    INSERT INTO one VALUES(1,'one');
+    INSERT INTO one VALUES(2,'two');
+    INSERT INTO one VALUES(3,'three');
+    SELECT b FROM one ORDER BY a;
+  }
+} {one two three}
+integrity_check trans-1.0.1
+do_test trans-1.1 {
+  execsql {
+    CREATE TABLE two(a int PRIMARY KEY, b text);
+    INSERT INTO two VALUES(1,'I');
+    INSERT INTO two VALUES(5,'V');
+    INSERT INTO two VALUES(10,'X');
+    SELECT b FROM two ORDER BY a;
+  }
+} {I V X}
+do_test trans-1.2.1 {
+  sqlite3_txn_state db
+} {0}
+do_test trans-1.2.2 {
+  sqlite3_txn_state db main
+} {0}
+do_test trans-1.2.3 {
+  sqlite3_txn_state db temp
+} {0}
+do_test trans-1.2.4 {
+  sqlite3_txn_state db no-such-schema
+} {-1}
+
+do_test trans-1.9 {
+  sqlite3 altdb test.db
+  execsql {SELECT b FROM one ORDER BY a} altdb
+} {one two three}
+do_test trans-1.10 {
+  execsql {SELECT b FROM two ORDER BY a} altdb
+} {I V X}
+integrity_check trans-1.11
+wal_check_journal_mode trans-1.12
+
+# Basic transactions
+#
+do_test trans-2.1 {
+  set v [catch {execsql {BEGIN}} msg]
+  lappend v $msg
+} {0 {}}
+do_test trans-2.1b {
+  sqlite3_txn_state db
+} {0}
+do_test trans-2.2 {
+  set v [catch {execsql {END}} msg]
+  lappend v $msg
+} {0 {}}
+do_test trans-2.3 {
+  set v [catch {execsql {BEGIN TRANSACTION}} msg]
+  lappend v $msg
+} {0 {}}
+do_test trans-2.4 {
+  set v [catch {execsql {COMMIT TRANSACTION}} msg]
+  lappend v $msg
+} {0 {}}
+do_test trans-2.5 {
+  set v [catch {execsql {BEGIN TRANSACTION 'foo'}} msg]
+  lappend v $msg
+} {0 {}}
+do_test trans-2.6 {
+  set v [catch {execsql {ROLLBACK TRANSACTION 'foo'}} msg]
+  lappend v $msg
+} {0 {}}
+do_test trans-2.10 {
+  execsql {
+    BEGIN;
+    SELECT a FROM one ORDER BY a;
+    SELECT a FROM two ORDER BY a;
+    END;
+  }
+} {1 2 3 1 5 10}
+integrity_check trans-2.11
+wal_check_journal_mode trans-2.12
+
+# Check the locking behavior
+#
+do_test trans-3.1 {
+  execsql {
+    BEGIN;
+    UPDATE one SET a = 0 WHERE 0;
+    SELECT a FROM one ORDER BY a;
+  }
+} {1 2 3}
+do_test trans-3.1b {
+  sqlite3_txn_state db
+} {2}
+do_test trans-3.1c {
+  sqlite3_txn_state db main
+} {2}
+do_test trans-3.1d {
+  sqlite3_txn_state db temp
+} {0}
+
+do_test trans-3.2 {
+  catchsql {
+    SELECT a FROM two ORDER BY a;
+  } altdb
+} {0 {1 5 10}}
+
+do_test trans-3.3 {
+  catchsql {
+    SELECT a FROM one ORDER BY a;
+  } altdb
+} {0 {1 2 3}}
+do_test trans-3.4 {
+  catchsql {
+    INSERT INTO one VALUES(4,'four');
+  }
+} {0 {}}
+do_test trans-3.5 {
+  catchsql {
+    SELECT a FROM two ORDER BY a;
+  } altdb
+} {0 {1 5 10}}
+do_test trans-3.6 {
+  catchsql {
+    SELECT a FROM one ORDER BY a;
+  } altdb
+} {0 {1 2 3}}
+do_test trans-3.7 {
+  catchsql {
+    INSERT INTO two VALUES(4,'IV');
+  }
+} {0 {}}
+do_test trans-3.8 {
+  catchsql {
+    SELECT a FROM two ORDER BY a;
+  } altdb
+} {0 {1 5 10}}
+do_test trans-3.9 {
+  catchsql {
+    SELECT a FROM one ORDER BY a;
+  } altdb
+} {0 {1 2 3}}
+do_test trans-3.10 {
+  execsql {END TRANSACTION}
+} {}
+do_test trans-3.10b {
+  sqlite3_txn_state db
+} {0}
+
+
+do_test trans-3.11 {
+  set v [catch {execsql {
+    SELECT a FROM two ORDER BY a;
+  } altdb} msg]
+  lappend v $msg
+} {0 {1 4 5 10}}
+do_test trans-3.12 {
+  set v [catch {execsql {
+    SELECT a FROM one ORDER BY a;
+  } altdb} msg]
+  lappend v $msg
+} {0 {1 2 3 4}}
+do_test trans-3.13 {
+  set v [catch {execsql {
+    SELECT a FROM two ORDER BY a;
+  } db} msg]
+  lappend v $msg
+} {0 {1 4 5 10}}
+do_test trans-3.14 {
+  set v [catch {execsql {
+    SELECT a FROM one ORDER BY a;
+  } db} msg]
+  lappend v $msg
+} {0 {1 2 3 4}}
+integrity_check trans-3.15
+wal_check_journal_mode trans-3.16
+
+do_test trans-4.1 {
+  set v [catch {execsql {
+    COMMIT;
+  } db} msg]
+  lappend v $msg
+} {1 {cannot commit - no transaction is active}}
+do_test trans-4.2 {
+  set v [catch {execsql {
+    ROLLBACK;
+  } db} msg]
+  lappend v $msg
+} {1 {cannot rollback - no transaction is active}}
+do_test trans-4.3 {
+  catchsql {
+    BEGIN TRANSACTION;
+    UPDATE two SET a = 0 WHERE 0;
+    SELECT a FROM two ORDER BY a;
+  } db
+} {0 {1 4 5 10}}
+do_test trans-4.4 {
+  catchsql {
+    SELECT a FROM two ORDER BY a;
+  } altdb
+} {0 {1 4 5 10}}
+do_test trans-4.5 {
+  catchsql {
+    SELECT a FROM one ORDER BY a;
+  } altdb
+} {0 {1 2 3 4}}
+do_test trans-4.6 {
+  catchsql {
+    BEGIN TRANSACTION;
+    SELECT a FROM one ORDER BY a;
+  } db
+} {1 {cannot start a transaction within a transaction}}
+do_test trans-4.7 {
+  catchsql {
+    SELECT a FROM two ORDER BY a;
+  } altdb
+} {0 {1 4 5 10}}
+do_test trans-4.8 {
+  catchsql {
+    SELECT a FROM one ORDER BY a;
+  } altdb
+} {0 {1 2 3 4}}
+do_test trans-4.9 {
+  set v [catch {execsql {
+    END TRANSACTION;
+    SELECT a FROM two ORDER BY a;
+  } db} msg]
+  lappend v $msg
+} {0 {1 4 5 10}}
+do_test trans-4.10 {
+  set v [catch {execsql {
+    SELECT a FROM two ORDER BY a;
+  } altdb} msg]
+  lappend v $msg
+} {0 {1 4 5 10}}
+do_test trans-4.11 {
+  set v [catch {execsql {
+    SELECT a FROM one ORDER BY a;
+  } altdb} msg]
+  lappend v $msg
+} {0 {1 2 3 4}}
+integrity_check trans-4.12
+wal_check_journal_mode trans-4.13
+wal_check_journal_mode trans-4.14 altdb
+do_test trans-4.98 {
+  altdb close
+  execsql {
+    DROP TABLE one;
+    DROP TABLE two;
+  }
+} {}
+integrity_check trans-4.99
+
+# Check out the commit/rollback behavior of the database
+#
+do_test trans-5.1 {
+  execsql {SELECT name FROM sqlite_master WHERE type='table' ORDER BY name}
+} {}
+do_test trans-5.2 {
+  execsql {BEGIN TRANSACTION}
+  execsql {SELECT name FROM sqlite_master WHERE type='table' ORDER BY name}
+} {}
+do_test trans-5.2b {
+  sqlite3_txn_state db
+} {1}
+do_test trans-5.2c {
+  sqlite3_txn_state db main
+} {1}
+do_test trans-5.2d {
+  sqlite3_txn_state db temp
+} {0}
+do_test trans-5.3 {
+  execsql {CREATE TABLE one(a text, b int)}
+  execsql {SELECT name FROM sqlite_master WHERE type='table' ORDER BY name}
+} {one}
+do_test trans-5.4 {
+  execsql {SELECT a,b FROM one ORDER BY b}
+} {}
+do_test trans-5.5 {
+  execsql {INSERT INTO one(a,b) VALUES('hello', 1)}
+  execsql {SELECT a,b FROM one ORDER BY b}
+} {hello 1}
+do_test trans-5.6 {
+  execsql {ROLLBACK}
+  execsql {SELECT name FROM sqlite_master WHERE type='table' ORDER BY name}
+} {}
+do_test trans-5.7 {
+  set v [catch {
+    execsql {SELECT a,b FROM one ORDER BY b}
+  } msg]
+  lappend v $msg
+} {1 {no such table: one}}
+
+# Test commits and rollbacks of table CREATE TABLEs, CREATE INDEXs
+# DROP TABLEs and DROP INDEXs
+#
+do_test trans-5.8 {
+  execsql {
+    SELECT name fROM sqlite_master 
+    WHERE type='table' OR type='index'
+    ORDER BY name
+  }
+} {}
+do_test trans-5.9 {
+  execsql {
+    BEGIN TRANSACTION;
+    CREATE TABLE t1(a int, b int, c int);
+    SELECT name fROM sqlite_master 
+    WHERE type='table' OR type='index'
+    ORDER BY name;
+  }
+} {t1}
+do_test trans-5.10 {
+  execsql {
+    CREATE INDEX i1 ON t1(a);
+    SELECT name fROM sqlite_master 
+    WHERE type='table' OR type='index'
+    ORDER BY name;
+  }
+} {i1 t1}
+do_test trans-5.11 {
+  execsql {
+    COMMIT;
+    SELECT name fROM sqlite_master 
+    WHERE type='table' OR type='index'
+    ORDER BY name;
+  }
+} {i1 t1}
+do_test trans-5.12 {
+  execsql {
+    BEGIN TRANSACTION;
+    CREATE TABLE t2(a int, b int, c int);
+    CREATE INDEX i2a ON t2(a);
+    CREATE INDEX i2b ON t2(b);
+    DROP TABLE t1;
+    SELECT name fROM sqlite_master 
+    WHERE type='table' OR type='index'
+    ORDER BY name;
+  }
+} {i2a i2b t2}
+do_test trans-5.13 {
+  execsql {
+    ROLLBACK;
+    SELECT name fROM sqlite_master 
+    WHERE type='table' OR type='index'
+    ORDER BY name;
+  }
+} {i1 t1}
+do_test trans-5.14 {
+  execsql {
+    BEGIN TRANSACTION;
+    DROP INDEX i1;
+    SELECT name fROM sqlite_master 
+    WHERE type='table' OR type='index'
+    ORDER BY name;
+  }
+} {t1}
+do_test trans-5.15 {
+  execsql {
+    ROLLBACK;
+    SELECT name fROM sqlite_master 
+    WHERE type='table' OR type='index'
+    ORDER BY name;
+  }
+} {i1 t1}
+do_test trans-5.16 {
+  execsql {
+    BEGIN TRANSACTION;
+    DROP INDEX i1;
+    CREATE TABLE t2(x int, y int, z int);
+    CREATE INDEX i2x ON t2(x);
+    CREATE INDEX i2y ON t2(y);
+    INSERT INTO t2 VALUES(1,2,3);
+    SELECT name fROM sqlite_master 
+    WHERE type='table' OR type='index'
+    ORDER BY name;
+  }
+} {i2x i2y t1 t2}
+do_test trans-5.17 {
+  execsql {
+    COMMIT;
+    SELECT name fROM sqlite_master 
+    WHERE type='table' OR type='index'
+    ORDER BY name;
+  }
+} {i2x i2y t1 t2}
+do_test trans-5.18 {
+  execsql {
+    SELECT * FROM t2;
+  }
+} {1 2 3}
+do_test trans-5.19 {
+  execsql {
+    SELECT x FROM t2 WHERE y=2;
+  }
+} {1}
+do_test trans-5.20 {
+  execsql {
+    BEGIN TRANSACTION;
+    DROP TABLE t1;
+    DROP TABLE t2;
+    SELECT name fROM sqlite_master 
+    WHERE type='table' OR type='index'
+    ORDER BY name;
+  }
+} {}
+do_test trans-5.21 {
+  set r [catch {execsql {
+    SELECT * FROM t2
+  }} msg]
+  lappend r $msg
+} {1 {no such table: t2}}
+do_test trans-5.22 {
+  execsql {
+    ROLLBACK;
+    SELECT name fROM sqlite_master 
+    WHERE type='table' OR type='index'
+    ORDER BY name;
+  }
+} {i2x i2y t1 t2}
+do_test trans-5.23 {
+  execsql {
+    SELECT * FROM t2;
+  }
+} {1 2 3}
+integrity_check trans-5.23
+
+
+# Try to DROP and CREATE tables and indices with the same name
+# within a transaction.  Make sure ROLLBACK works.
+#
+do_test trans-6.1 {
+  execsql2 {
+    INSERT INTO t1 VALUES(1,2,3);
+    BEGIN TRANSACTION;
+    DROP TABLE t1;
+    CREATE TABLE t1(p,q,r);
+    ROLLBACK;
+    SELECT * FROM t1;
+  }
+} {a 1 b 2 c 3}
+do_test trans-6.2 {
+  execsql2 {
+    INSERT INTO t1 VALUES(1,2,3);
+    BEGIN TRANSACTION;
+    DROP TABLE t1;
+    CREATE TABLE t1(p,q,r);
+    COMMIT;
+    SELECT * FROM t1;
+  }
+} {}
+do_test trans-6.3 {
+  execsql2 {
+    INSERT INTO t1 VALUES(1,2,3);
+    SELECT * FROM t1;
+  }
+} {p 1 q 2 r 3}
+do_test trans-6.4 {
+  execsql2 {
+    BEGIN TRANSACTION;
+    DROP TABLE t1;
+    CREATE TABLE t1(a,b,c);
+    INSERT INTO t1 VALUES(4,5,6);
+    SELECT * FROM t1;
+    DROP TABLE t1;
+  }
+} {a 4 b 5 c 6}
+do_test trans-6.5 {
+  execsql2 {
+    ROLLBACK;
+    SELECT * FROM t1;
+  }
+} {p 1 q 2 r 3}
+do_test trans-6.6 {
+  execsql2 {
+    BEGIN TRANSACTION;
+    DROP TABLE t1;
+    CREATE TABLE t1(a,b,c);
+    INSERT INTO t1 VALUES(4,5,6);
+    SELECT * FROM t1;
+    DROP TABLE t1;
+  }
+} {a 4 b 5 c 6}
+do_test trans-6.7 {
+  catchsql {
+    COMMIT;
+    SELECT * FROM t1;
+  }
+} {1 {no such table: t1}}
+
+# Repeat on a table with an automatically generated index.
+#
+do_test trans-6.10 {
+  execsql2 {
+    CREATE TABLE t1(a unique,b,c);
+    INSERT INTO t1 VALUES(1,2,3);
+    BEGIN TRANSACTION;
+    DROP TABLE t1;
+    CREATE TABLE t1(p unique,q,r);
+    ROLLBACK;
+    SELECT * FROM t1;
+  }
+} {a 1 b 2 c 3}
+do_test trans-6.11 {
+  execsql2 {
+    BEGIN TRANSACTION;
+    DROP TABLE t1;
+    CREATE TABLE t1(p unique,q,r);
+    COMMIT;
+    SELECT * FROM t1;
+  }
+} {}
+do_test trans-6.12 {
+  execsql2 {
+    INSERT INTO t1 VALUES(1,2,3);
+    SELECT * FROM t1;
+  }
+} {p 1 q 2 r 3}
+do_test trans-6.13 {
+  execsql2 {
+    BEGIN TRANSACTION;
+    DROP TABLE t1;
+    CREATE TABLE t1(a unique,b,c);
+    INSERT INTO t1 VALUES(4,5,6);
+    SELECT * FROM t1;
+    DROP TABLE t1;
+  }
+} {a 4 b 5 c 6}
+do_test trans-6.14 {
+  execsql2 {
+    ROLLBACK;
+    SELECT * FROM t1;
+  }
+} {p 1 q 2 r 3}
+do_test trans-6.15 {
+  execsql2 {
+    BEGIN TRANSACTION;
+    DROP TABLE t1;
+    CREATE TABLE t1(a unique,b,c);
+    INSERT INTO t1 VALUES(4,5,6);
+    SELECT * FROM t1;
+    DROP TABLE t1;
+  }
+} {a 4 b 5 c 6}
+do_test trans-6.16 {
+  catchsql {
+    COMMIT;
+    SELECT * FROM t1;
+  }
+} {1 {no such table: t1}}
+
+do_test trans-6.20 {
+  execsql {
+    CREATE TABLE t1(a integer primary key,b,c);
+    INSERT INTO t1 VALUES(1,-2,-3);
+    INSERT INTO t1 VALUES(4,-5,-6);
+    SELECT * FROM t1;
+  }
+} {1 -2 -3 4 -5 -6}
+do_test trans-6.21 {
+  execsql {
+    CREATE INDEX i1 ON t1(b);
+    SELECT * FROM t1 WHERE b<1;
+  }
+} {4 -5 -6 1 -2 -3}
+do_test trans-6.22 {
+  execsql {
+    BEGIN TRANSACTION;
+    DROP INDEX i1;
+    SELECT * FROM t1 WHERE b<1;
+    ROLLBACK;
+  }
+} {1 -2 -3 4 -5 -6}
+do_test trans-6.23 {
+  execsql {
+    SELECT * FROM t1 WHERE b<1;
+  }
+} {4 -5 -6 1 -2 -3}
+do_test trans-6.24 {
+  execsql {
+    BEGIN TRANSACTION;
+    DROP TABLE t1;
+    ROLLBACK;
+    SELECT * FROM t1 WHERE b<1;
+  }
+} {4 -5 -6 1 -2 -3}
+
+do_test trans-6.25 {
+  execsql {
+    BEGIN TRANSACTION;
+    DROP INDEX i1;
+    CREATE INDEX i1 ON t1(c);
+    SELECT * FROM t1 WHERE b<1;
+  }
+} {1 -2 -3 4 -5 -6}
+do_test trans-6.26 {
+  execsql {
+    SELECT * FROM t1 WHERE c<1;
+  }
+} {4 -5 -6 1 -2 -3}
+do_test trans-6.27 {
+  execsql {
+    ROLLBACK;
+    SELECT * FROM t1 WHERE b<1;
+  }
+} {4 -5 -6 1 -2 -3}
+do_test trans-6.28 {
+  execsql {
+    SELECT * FROM t1 WHERE c<1;
+  }
+} {1 -2 -3 4 -5 -6}
+
+# The following repeats steps 6.20 through 6.28, but puts a "unique"
+# constraint the first field of the table in order to generate an
+# automatic index.
+#
+do_test trans-6.30 {
+  execsql {
+    BEGIN TRANSACTION;
+    DROP TABLE t1;
+    CREATE TABLE t1(a int unique,b,c);
+    COMMIT;
+    INSERT INTO t1 VALUES(1,-2,-3);
+    INSERT INTO t1 VALUES(4,-5,-6);
+    SELECT * FROM t1 ORDER BY a;
+  }
+} {1 -2 -3 4 -5 -6}
+do_test trans-6.31 {
+  execsql {
+    CREATE INDEX i1 ON t1(b);
+    SELECT * FROM t1 WHERE b<1;
+  }
+} {4 -5 -6 1 -2 -3}
+do_test trans-6.32 {
+  execsql {
+    BEGIN TRANSACTION;
+    DROP INDEX i1;
+    SELECT * FROM t1 WHERE b<1;
+    ROLLBACK;
+  }
+} {1 -2 -3 4 -5 -6}
+do_test trans-6.33 {
+  execsql {
+    SELECT * FROM t1 WHERE b<1;
+  }
+} {4 -5 -6 1 -2 -3}
+do_test trans-6.34 {
+  execsql {
+    BEGIN TRANSACTION;
+    DROP TABLE t1;
+    ROLLBACK;
+    SELECT * FROM t1 WHERE b<1;
+  }
+} {4 -5 -6 1 -2 -3}
+
+do_test trans-6.35 {
+  execsql {
+    BEGIN TRANSACTION;
+    DROP INDEX i1;
+    CREATE INDEX i1 ON t1(c);
+    SELECT * FROM t1 WHERE b<1;
+  }
+} {1 -2 -3 4 -5 -6}
+do_test trans-6.36 {
+  execsql {
+    SELECT * FROM t1 WHERE c<1;
+  }
+} {4 -5 -6 1 -2 -3}
+do_test trans-6.37 {
+  execsql {
+    DROP INDEX i1;
+    SELECT * FROM t1 WHERE c<1;
+  }
+} {1 -2 -3 4 -5 -6}
+do_test trans-6.38 {
+  execsql {
+    ROLLBACK;
+    SELECT * FROM t1 WHERE b<1;
+  }
+} {4 -5 -6 1 -2 -3}
+do_test trans-6.39 {
+  execsql {
+    SELECT * FROM t1 WHERE c<1;
+  }
+} {1 -2 -3 4 -5 -6}
+integrity_check trans-6.40
+
+# Test to make sure rollback restores the database back to its original
+# state.
+#
+do_test trans-7.1 {
+  execsql {BEGIN}
+  for {set i 0} {$i<1000} {incr i} {
+    set r1 [expr {rand()}]
+    set r2 [expr {rand()}]
+    set r3 [expr {rand()}]
+    execsql "INSERT INTO t2 VALUES($r1,$r2,$r3)"
+  }
+  execsql {COMMIT}
+  set ::checksum [execsql {SELECT md5sum(x,y,z) FROM t2}]
+  set ::checksum2 [
+    execsql {SELECT md5sum(type,name,tbl_name,rootpage,sql) FROM sqlite_master}
+  ]
+  execsql {SELECT count(*) FROM t2}
+} {1001}
+do_test trans-7.2 {
+  execsql {SELECT md5sum(x,y,z) FROM t2}
+} $checksum
+do_test trans-7.2.1 {
+  execsql {SELECT md5sum(type,name,tbl_name,rootpage,sql) FROM sqlite_master}
+} $checksum2
+do_test trans-7.3 {
+  execsql {
+    BEGIN;
+    DELETE FROM t2;
+    ROLLBACK;
+    SELECT md5sum(x,y,z) FROM t2;
+  }
+} $checksum
+do_test trans-7.4 {
+  execsql {
+    BEGIN;
+    INSERT INTO t2 SELECT * FROM t2;
+    ROLLBACK;
+    SELECT md5sum(x,y,z) FROM t2;
+  }
+} $checksum
+do_test trans-7.5 {
+  execsql {
+    BEGIN;
+    DELETE FROM t2;
+    ROLLBACK;
+    SELECT md5sum(x,y,z) FROM t2;
+  }
+} $checksum
+do_test trans-7.6 {
+  execsql {
+    BEGIN;
+    INSERT INTO t2 SELECT * FROM t2;
+    ROLLBACK;
+    SELECT md5sum(x,y,z) FROM t2;
+  }
+} $checksum
+do_test trans-7.7 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t3 AS SELECT * FROM t2;
+    INSERT INTO t2 SELECT * FROM t3;
+    ROLLBACK;
+    SELECT md5sum(x,y,z) FROM t2;
+  }
+} $checksum
+do_test trans-7.8 {
+  execsql {SELECT md5sum(type,name,tbl_name,rootpage,sql) FROM sqlite_master}
+} $checksum2
+ifcapable tempdb {
+  do_test trans-7.9 {
+    execsql {
+      BEGIN;
+      CREATE TEMP TABLE t3 AS SELECT * FROM t2;
+      INSERT INTO t2 SELECT * FROM t3;
+      ROLLBACK;
+      SELECT md5sum(x,y,z) FROM t2;
+    }
+  } $checksum
+}
+do_test trans-7.10 {
+  execsql {SELECT md5sum(type,name,tbl_name,rootpage,sql) FROM sqlite_master}
+} $checksum2
+ifcapable tempdb {
+  do_test trans-7.11 {
+    execsql {
+      BEGIN;
+      CREATE TEMP TABLE t3 AS SELECT * FROM t2;
+      INSERT INTO t2 SELECT * FROM t3;
+      DROP INDEX i2x;
+      DROP INDEX i2y;
+      CREATE INDEX i3a ON t3(x);
+      ROLLBACK;
+      SELECT md5sum(x,y,z) FROM t2;
+    }
+  } $checksum
+}
+do_test trans-7.12 {
+  execsql {SELECT md5sum(type,name,tbl_name,rootpage,sql) FROM sqlite_master}
+} $checksum2
+ifcapable tempdb {
+  do_test trans-7.13 {
+    execsql {
+      BEGIN;
+      DROP TABLE t2;
+      ROLLBACK;
+      SELECT md5sum(x,y,z) FROM t2;
+    }
+  } $checksum
+}
+do_test trans-7.14 {
+  execsql {SELECT md5sum(type,name,tbl_name,rootpage,sql) FROM sqlite_master}
+} $checksum2
+integrity_check trans-7.15
+wal_check_journal_mode trans-7.16
+
+# Arrange for another process to begin modifying the database but abort
+# and die in the middle of the modification.  Then have this process read
+# the database.  This process should detect the journal file and roll it
+# back.  Verify that this happens correctly.
+#
+set fd [open test.tcl w]
+puts $fd {
+  sqlite3_test_control_pending_byte 0x0010000
+  sqlite3 db test.db
+  db eval {
+    PRAGMA default_cache_size=20;
+    BEGIN;
+    CREATE TABLE t3 AS SELECT * FROM t2;
+    DELETE FROM t2;
+  }
+  sqlite_abort
+}
+close $fd
+do_test trans-8.1 {
+  catch {exec [info nameofexec] test.tcl}
+  execsql {SELECT md5sum(x,y,z) FROM t2}
+} $checksum
+do_test trans-8.2 {
+  execsql {SELECT md5sum(type,name,tbl_name,rootpage,sql) FROM sqlite_master}
+} $checksum2
+integrity_check trans-8.3
+set fd [open test.tcl w]
+puts $fd {
+  sqlite3_test_control_pending_byte 0x0010000
+  sqlite3 db test.db
+  db eval {
+    PRAGMA journal_mode=persist;
+    PRAGMA default_cache_size=20;
+    BEGIN;
+    CREATE TABLE t3 AS SELECT * FROM t2;
+    DELETE FROM t2;
+  }
+  sqlite_abort
+}
+close $fd
+do_test trans-8.4 {
+  catch {exec [info nameofexec] test.tcl}
+  execsql {SELECT md5sum(x,y,z) FROM t2}
+} $checksum
+do_test trans-8.5 {
+  execsql {SELECT md5sum(type,name,tbl_name,rootpage,sql) FROM sqlite_master}
+} $checksum2
+integrity_check trans-8.6
+wal_check_journal_mode trans-8.7
+
+# In the following sequence of tests, compute the MD5 sum of the content
+# of a table, make lots of modifications to that table, then do a rollback.
+# Verify that after the rollback, the MD5 checksum is unchanged.
+#
+do_test trans-9.1 {
+  execsql {
+    PRAGMA default_cache_size=10;
+  }
+  db close
+  sqlite3 db test.db
+  execsql {
+    BEGIN;
+    CREATE TABLE t3(x TEXT);
+    INSERT INTO t3 VALUES(randstr(10,400));
+    INSERT INTO t3 VALUES(randstr(10,400));
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3;
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3;
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3;
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3;
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3;
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3;
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3;
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3;
+    INSERT INTO t3 SELECT randstr(10,400) FROM t3;
+    COMMIT;
+    SELECT count(*) FROM t3;
+  }
+} {1024}
+wal_check_journal_mode trans-9.1.1
+
+# The following procedure computes a "signature" for table "t3".  If
+# T3 changes in any way, the signature should change.  
+#
+# This is used to test ROLLBACK.  We gather a signature for t3, then
+# make lots of changes to t3, then rollback and take another signature.
+# The two signatures should be the same.
+#
+proc signature {} {
+  return [db eval {SELECT count(*), md5sum(x) FROM t3}]
+}
+
+# Repeat the following group of tests 20 times for quick testing and
+# 40 times for full testing.  Each iteration of the test makes table
+# t3 a little larger, and thus takes a little longer, so doing 40 tests
+# is more than 2.0 times slower than doing 20 tests.  Considerably more.
+#
+# Also, if temporary tables are stored in memory and the test pcache
+# is in use, only 20 iterations. Otherwise the test pcache runs out
+# of page slots and SQLite reports "out of memory".
+#
+if {[info exists G(isquick)] || (
+  $TEMP_STORE==3 && [regexp {^pcache[[:digit:]]*$} [permutation]]
+) } {
+  set limit 20
+} elseif {[info exists G(issoak)]} {
+  set limit 100
+} else {
+  set limit 40
+}
+
+# Do rollbacks.  Make sure the signature does not change.
+#
+for {set i 2} {$i<=$limit} {incr i} {
+  set ::sig [signature]
+  set cnt [lindex $::sig 0]
+  if {$i%2==0} {
+    execsql {PRAGMA fullfsync=ON}
+  } else {
+    execsql {PRAGMA fullfsync=OFF}
+  }
+  set sqlite_sync_count 0
+  set sqlite_fullsync_count 0
+  do_test trans-9.$i.1-$cnt {
+     execsql {
+       BEGIN;
+       DELETE FROM t3 WHERE random()%10!=0;
+       INSERT INTO t3 SELECT randstr(10,10)||x FROM t3;
+       INSERT INTO t3 SELECT randstr(10,10)||x FROM t3;
+       ROLLBACK;
+     }
+     signature
+  } $sig
+  do_test trans-9.$i.2-$cnt {
+     execsql {
+       BEGIN;
+       DELETE FROM t3 WHERE random()%10!=0;
+       INSERT INTO t3 SELECT randstr(10,10)||x FROM t3;
+       DELETE FROM t3 WHERE random()%10!=0;
+       INSERT INTO t3 SELECT randstr(10,10)||x FROM t3;
+       ROLLBACK;
+     }
+     signature
+  } $sig
+  if {$i<$limit} {
+    do_test trans-9.$i.3-$cnt {
+       execsql {
+         INSERT INTO t3 SELECT randstr(10,400) FROM t3 WHERE random()%10==0;
+       }
+    } {}
+    catch flush_async_queue
+    if {$tcl_platform(platform)=="unix"} {
+      do_test trans-9.$i.4-$cnt {
+         expr {$sqlite_sync_count>0}
+      } 1
+      ifcapable pager_pragmas {
+        do_test trans-9.$i.5-$cnt {
+           expr {$sqlite_fullsync_count>0}
+        } [expr {$i%2==0}]
+      } else {
+        do_test trans-9.$i.5-$cnt {
+          expr {$sqlite_fullsync_count==0}
+        } {1}
+      }
+    }
+  }
+
+  wal_check_journal_mode trans-9.$i.6-$cnt
+  set ::pager_old_format 0
+}
+   
+finish_test
diff --git a/test/trans2.test b/test/trans2.test
new file mode 100644
index 0000000000000000000000000000000000000000..36a2f9986b8dbc8715886e0357c1e8784e4459b8
--- /dev/null
+++ b/test/trans2.test
@@ -0,0 +1,232 @@
+# 2008 August 27
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements regression tests for SQLite library.  The
+# focus of this script is transactions
+#
+# $Id: trans2.test,v 1.1 2008/08/27 18:56:36 drh Exp $
+#
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# A procedure to scramble the elements of list $inlist into a random order.
+#
+proc scramble {inlist} {
+  set y {}
+  foreach x $inlist {
+    lappend y [list [expr {rand()}] $x]
+  }
+  set y [lsort $y]
+  set outlist {}
+  foreach x $y {
+    lappend outlist [lindex $x 1]
+  }
+  return $outlist
+}
+
+# Generate a UUID using randomness.
+#
+expr srand(1)
+proc random_uuid {} {
+  set u {}
+  for {set i 0} {$i<5} {incr i} {
+    append u [format %06x [expr {int(rand()*16777216)}]]
+  }
+  return $u
+}
+
+# Compute hashes on the u1 and u2 fields of the sample data.
+#
+proc hash1 {} {
+  global data
+  set x ""
+  foreach rec [lsort -integer -index 0 $data] {
+    append x [lindex $rec 1]
+  }
+  return [md5 $x]
+}
+proc hash2 {} {
+  global data
+  set x ""
+  foreach rec [lsort -integer -index 0 $data] {
+    append x [lindex $rec 3]
+  }
+  return [md5 $x]
+}
+
+# Create the initial data set
+#
+unset -nocomplain data i max_rowid todel n rec max1 id origres newres
+unset -nocomplain inssql modsql s j z
+set data {}
+for {set i 0} {$i<400} {incr i} {
+  set rec [list $i [random_uuid] [expr {int(rand()*5000)+1000}] [random_uuid]]
+  lappend data $rec
+}
+set max_rowid [expr {$i-1}]
+
+# Create the T1 table used to hold test data.  Populate that table with
+# the initial data set and check hashes to make sure everything is correct.
+#
+do_test trans2-1.1 {
+  execsql {
+    PRAGMA cache_size=100;
+    CREATE TABLE t1(
+      id INTEGER PRIMARY KEY,
+      u1 TEXT UNIQUE,
+      z BLOB NOT NULL,
+      u2 TEXT UNIQUE
+    );
+  }
+  foreach rec [scramble $data] {
+    foreach {id u1 z u2} $rec break
+    db eval {INSERT INTO t1 VALUES($id,$u1,zeroblob($z),$u2)}
+  }
+  db eval {SELECT md5sum(u1), md5sum(u2) FROM t1 ORDER BY id}
+} [list [hash1] [hash2]]
+
+# Repeat the main test loop multiple times.
+#
+for {set i 2} {$i<=30} {incr i} {
+  # Delete one row out of every 10 in the database.  This will add
+  # many pages to the freelist.
+  #
+  set todel {}
+  set n [expr {[llength $data]/10}]
+  set data [scramble $data]
+  foreach rec [lrange $data 0 $n] {
+    lappend todel [lindex $rec 0]
+  }
+  set data [lrange $data [expr {$n+1}] end]
+  set max1 [lindex [lindex $data 0] 0]
+  foreach rec $data {
+    set id [lindex $rec 0]
+    if {$id>$max1} {set max1 $id}
+  }
+  set origres [list [hash1] [hash2]]
+  do_test trans2-$i.1 {
+    db eval "DELETE FROM t1 WHERE id IN ([join $todel ,])"
+    db eval {SELECT md5sum(u1), md5sum(u2) FROM t1 ORDER BY id}
+  } $origres
+  integrity_check trans2-$i.2
+
+  # Begin a transaction and insert many new records.
+  #
+  set newdata {}
+  foreach id $todel {
+    set rec [list $id [random_uuid] \
+                      [expr {int(rand()*5000)+1000}] [random_uuid]]
+    lappend newdata $rec
+    lappend data $rec
+  }
+  for {set j 1} {$j<50} {incr j} {
+    set id [expr {$max_rowid+$j}]
+    lappend todel $id
+    set rec [list $id [random_uuid] \
+                      [expr {int(rand()*5000)+1000}] [random_uuid]]
+    lappend newdata $rec
+    lappend data $rec
+  }
+  set max_rowid [expr {$max_rowid+$j-1}]
+  set modsql {}
+  set inssql {}
+  set newres [list [hash1] [hash2]]
+  do_test trans2-$i.3 {
+    db eval BEGIN
+    foreach rec [scramble $newdata] {
+      foreach {id u1 z u2} $rec break
+      set s "INSERT INTO t1 VALUES($id,'$u1',zeroblob($z),'$u2');"
+      append modsql $s\n
+      append inssql $s\n
+      db eval $s
+    }
+    db eval {SELECT md5sum(u1), md5sum(u2) FROM t1 ORDER BY id}
+  } $newres
+  integrity_check trans2-$i.4
+
+  # Do a large update that aborts do to a constraint failure near
+  # the end.  This stresses the statement journal mechanism.
+  #
+  do_test trans2-$i.10 {
+    catchsql {
+      UPDATE t1 SET u1=u1||'x',
+          z = CASE WHEN id<$max_rowid
+                   THEN zeroblob((random()&65535)%5000 + 1000) END;
+    }
+  } {1 {NOT NULL constraint failed: t1.z}}
+  do_test trans2-$i.11 {
+    db eval {SELECT md5sum(u1), md5sum(u2) FROM t1 ORDER BY id}
+  } $newres
+
+  # Delete all of the newly inserted records.  Verify that the database
+  # is back to its original state.
+  #
+  do_test trans2-$i.20 {
+    set s "DELETE FROM t1 WHERE id IN ([join $todel ,]);"
+    append modsql $s\n
+    db eval $s
+    db eval {SELECT md5sum(u1), md5sum(u2) FROM t1 ORDER BY id}
+  } $origres
+
+  # Do another large update that aborts do to a constraint failure near
+  # the end.  This stresses the statement journal mechanism.
+  #
+  do_test trans2-$i.30 {
+    catchsql {
+      UPDATE t1 SET u1=u1||'x',
+          z = CASE WHEN id<$max1
+                   THEN zeroblob((random()&65535)%5000 + 1000) END;
+    }
+  } {1 {NOT NULL constraint failed: t1.z}}
+  do_test trans2-$i.31 {
+    db eval {SELECT md5sum(u1), md5sum(u2) FROM t1 ORDER BY id}
+  } $origres
+
+  # Redo the inserts
+  #
+  do_test trans2-$i.40 {
+    db eval $inssql
+    append modsql $inssql
+    db eval {SELECT md5sum(u1), md5sum(u2) FROM t1 ORDER BY id}
+  } $newres
+
+  # Rollback the transaction.  Verify that the content is restored.
+  #
+  do_test trans2-$i.90 {
+    db eval ROLLBACK
+    db eval {SELECT md5sum(u1), md5sum(u2) FROM t1 ORDER BY id}
+  } $origres
+  integrity_check trans2-$i.91
+
+  # Repeat all the changes, but this time commit.
+  #
+  do_test trans2-$i.92 {
+    db eval BEGIN
+    catchsql {
+      UPDATE t1 SET u1=u1||'x',
+          z = CASE WHEN id<$max1
+                   THEN zeroblob((random()&65535)%5000 + 1000) END;
+    }
+    db eval $modsql
+    catchsql {
+      UPDATE t1 SET u1=u1||'x',
+          z = CASE WHEN id<$max1
+                   THEN zeroblob((random()&65535)%5000 + 1000) END;
+    }
+    db eval COMMIT
+    db eval {SELECT md5sum(u1), md5sum(u2) FROM t1 ORDER BY id}
+  } $newres
+  integrity_check trans2-$i.93
+}
+
+unset -nocomplain data i max_rowid todel n rec max1 id origres newres
+unset -nocomplain inssql modsql s j z
+finish_test
diff --git a/test/trans3.test b/test/trans3.test
new file mode 100644
index 0000000000000000000000000000000000000000..e82844241580d83369c210d104af4fa34a2cec55
--- /dev/null
+++ b/test/trans3.test
@@ -0,0 +1,76 @@
+# 2008 November 3
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements regression tests for SQLite library.  The
+# focus of this script is the response of COMMIT and ROLLBACK when
+# statements are still pending.
+#
+# $Id: trans3.test,v 1.2 2008/11/05 16:37:35 drh Exp $
+#
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+unset -nocomplain ecode
+
+do_test trans3-1.1 {
+  db eval {
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(1);
+    INSERT INTO t1 VALUES(2);
+    INSERT INTO t1 VALUES(3);
+    SELECT * FROM t1;
+  }
+} {1 2 3}
+do_test trans3-1.2 {
+  db eval BEGIN
+  db eval {INSERT INTO t1 VALUES(4);}
+  set ::ecode {}
+  set x [catch {
+     db eval {SELECT * FROM t1 LIMIT 1} {
+        if {[catch {db eval COMMIT} errmsg]} {
+           set ::ecode [sqlite3_extended_errcode db]
+           error $errmsg
+        }
+     }
+  } errmsg]
+  lappend x $errmsg
+} {0 {}}
+do_test trans3-1.3 {
+  set ::ecode
+} {}
+do_test trans3-1.3.1 {
+  sqlite3_get_autocommit db
+} 1
+do_test trans3-1.4 {
+  db eval {SELECT * FROM t1}
+} {1 2 3 4}
+do_test trans3-1.5 {
+  db eval {BEGIN; CREATE TABLE xyzzy(abc);}
+  db eval {INSERT INTO t1 VALUES(5);}
+  set ::ecode {}
+  set x [catch {
+     db eval {SELECT * FROM t1} {
+        if {[catch {db eval ROLLBACK} errmsg]} {
+           set ::ecode [sqlite3_extended_errcode db]
+           error $errmsg
+        }
+     }
+  } errmsg]
+  lappend x $errmsg
+} {1 {abort due to ROLLBACK}}
+do_test trans3-1.6 {
+  set ::ecode
+} {}
+do_test trans3-1.7 {
+  db eval {SELECT * FROM t1}
+} {1 2 3 4}
+unset -nocomplain ecode
+
+finish_test
diff --git a/test/transitive1.test b/test/transitive1.test
new file mode 100644
index 0000000000000000000000000000000000000000..80c53e8ffbfe1e21571b9d86faba743bea2d222e
--- /dev/null
+++ b/test/transitive1.test
@@ -0,0 +1,429 @@
+# 2013 April 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing of transitive WHERE clause constraints
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_execsql_test transitive1-100 {
+  CREATE TABLE t1(a TEXT, b TEXT, c TEXT COLLATE NOCASE);
+  INSERT INTO t1 VALUES('abc','abc','Abc');
+  INSERT INTO t1 VALUES('def','def','def');
+  INSERT INTO t1 VALUES('ghi','ghi','GHI');
+  CREATE INDEX t1a1 ON t1(a);
+  CREATE INDEX t1a2 ON t1(a COLLATE nocase);
+
+  SELECT * FROM t1 WHERE a=b AND c=b AND c='DEF';
+} {def def def}
+do_execsql_test transitive1-110 {
+  SELECT * FROM t1 WHERE a=b AND c=b AND c>='DEF' ORDER BY +a;
+} {def def def ghi ghi GHI}
+do_execsql_test transitive1-120 {
+  SELECT * FROM t1 WHERE a=b AND c=b AND c<='DEF' ORDER BY +a;
+} {abc abc Abc def def def}
+
+do_execsql_test transitive1-200 {
+  CREATE TABLE t2(a INTEGER, b INTEGER, c TEXT);
+  INSERT INTO t2 VALUES(100,100,100);
+  INSERT INTO t2 VALUES(20,20,20);
+  INSERT INTO t2 VALUES(3,3,3);
+
+  SELECT * FROM t2 WHERE a=b AND c=b AND c=20;
+} {20 20 20}
+do_execsql_test transitive1-210 {
+  SELECT * FROM t2 WHERE a=b AND c=b AND c>=20 ORDER BY +a;
+} {3 3 3 20 20 20}
+do_execsql_test transitive1-220 {
+  SELECT * FROM t2 WHERE a=b AND c=b AND c<=20 ORDER BY +a;
+} {20 20 20 100 100 100}
+
+# Test cases for ticket [[d805526eae253103] 2013-07-08
+# "Incorrect join result or assertion fault due to transitive constraints"
+#
+do_execsql_test transitive1-300 {
+  CREATE TABLE t301(w INTEGER PRIMARY KEY, x);
+  CREATE TABLE t302(y INTEGER UNIQUE, z);
+  INSERT INTO t301 VALUES(1,2),(3,4),(5,6);
+  INSERT INTO t302 VALUES(1,3),(3,6),(5,7);
+  SELECT *
+    FROM t301 CROSS JOIN t302
+   WHERE w=y AND y IS NOT NULL
+   ORDER BY +w;
+} {1 2 1 3 3 4 3 6 5 6 5 7}
+do_execsql_test transitive1-301 {
+  SELECT *
+    FROM t301 CROSS JOIN t302
+   WHERE w=y AND y IS NOT NULL
+   ORDER BY w;
+} {1 2 1 3 3 4 3 6 5 6 5 7}
+do_execsql_test transitive1-302 {
+  SELECT *
+    FROM t301 CROSS JOIN t302
+   WHERE w IS y AND y IS NOT NULL
+   ORDER BY w;
+} {1 2 1 3 3 4 3 6 5 6 5 7}
+do_execsql_test transitive1-310 {
+  SELECT *
+    FROM t301 CROSS JOIN t302 ON w=y
+   WHERE y>1
+   ORDER BY +w
+} {3 4 3 6 5 6 5 7}
+do_execsql_test transitive1-311 {
+  SELECT *
+    FROM t301 CROSS JOIN t302 ON w=y
+   WHERE y>1
+   ORDER BY w
+} {3 4 3 6 5 6 5 7}
+do_execsql_test transitive1-312 {
+  SELECT *
+    FROM t301 CROSS JOIN t302 ON w=y
+   WHERE y>1
+   ORDER BY w DESC
+} {5 6 5 7 3 4 3 6}
+do_execsql_test transitive1-320 {
+  SELECT *
+    FROM t301 CROSS JOIN t302 ON w=y
+   WHERE y BETWEEN 2 AND 4;
+} {3 4 3 6}
+do_execsql_test transitive1-331 {
+  SELECT *
+    FROM t301 CROSS JOIN t302 ON w=y
+   WHERE y BETWEEN 1 AND 4
+   ORDER BY w;
+} {1 2 1 3 3 4 3 6}
+do_execsql_test transitive1-332 {
+  SELECT *
+    FROM t301 CROSS JOIN t302 ON w=y
+   WHERE y BETWEEN 1 AND 4
+   ORDER BY w DESC;
+} {3 4 3 6 1 2 1 3}
+
+# Ticket [c620261b5b5dc] circa 2013-10-28.
+# Make sure constraints are not used with LEFT JOINs.
+#
+# The next case is from the ticket report.  It outputs no rows in 3.8.1
+# prior to the bug-fix.
+#
+do_execsql_test transitive1-400 {
+  CREATE TABLE t401(a);
+  CREATE TABLE t402(b);
+  CREATE TABLE t403(c INTEGER PRIMARY KEY);
+  INSERT INTO t401 VALUES(1);
+  INSERT INTO t403 VALUES(1);
+  SELECT '1-row' FROM t401 LEFT JOIN t402 ON b=a JOIN t403 ON c=a;
+} {1-row}
+do_execsql_test transitive1-401 {
+  SELECT '1-row' FROM t401 LEFT JOIN t402 ON b IS a JOIN t403 ON c=a;
+} {1-row}
+do_execsql_test transitive1-402 {
+  SELECT '1-row' FROM t401 LEFT JOIN t402 ON b=a JOIN t403 ON c IS a;
+} {1-row}
+do_execsql_test transitive1-403 {
+  SELECT '1-row' FROM t401 LEFT JOIN t402 ON b IS a JOIN t403 ON c IS a;
+} {1-row}
+
+
+# The following is a script distilled from the XBMC project where the
+# bug was originally encountered.  The correct answer is a single row
+# of output.  Before the bug was fixed, zero rows were generated.
+#
+do_execsql_test transitive1-410 {
+  CREATE TABLE bookmark ( idBookmark integer primary key, idFile integer, timeInSeconds double, totalTimeInSeconds double, thumbNailImage text, player text, playerState text, type integer);
+  CREATE TABLE path ( idPath integer primary key, strPath text, strContent text, strScraper text, strHash text, scanRecursive integer, useFolderNames bool, strSettings text, noUpdate bool, exclude bool, dateAdded text);
+  INSERT INTO "path" VALUES(1,'/tmp/tvshows/','tvshows','metadata.tvdb.com','989B1CE5680A14F5F86123F751169B49',0,0,'<settings><setting id="absolutenumber" value="false" /><setting id="dvdorder" value="false" /><setting id="fanart" value="true" /><setting id="language" value="en" /></settings>',0,0,NULL);
+  INSERT INTO "path" VALUES(2,'/tmp/tvshows/The.Big.Bang.Theory/','','','85E1DAAB2F5FF6EAE8AEDF1B5C882D1E',NULL,NULL,NULL,NULL,NULL,'2013-10-23 18:58:43');
+  CREATE TABLE files ( idFile integer primary key, idPath integer, strFilename text, playCount integer, lastPlayed text, dateAdded text);
+  INSERT INTO "files" VALUES(1,2,'The.Big.Bang.Theory.S01E01.WEB-DL.AAC2.0.H264.mkv',NULL,NULL,'2013-10-23 18:57:36');
+  CREATE TABLE tvshow ( idShow integer primary key,c00 text,c01 text,c02 text,c03 text,c04 text,c05 text,c06 text,c07 text,c08 text,c09 text,c10 text,c11 text,c12 text,c13 text,c14 text,c15 text,c16 text,c17 text,c18 text,c19 text,c20 text,c21 text,c22 text,c23 text);
+  INSERT INTO "tvshow" VALUES(1,'The Big Bang Theory','Leonard Hofstadter and Sheldon Cooper are brilliant physicists, the kind of "beautiful minds" that understand how the universe works. But none of that genius helps them interact with people, especially women. All this begins to change when a free-spirited beauty named Penny moves in next door. Sheldon, Leonard''s roommate, is quite content spending his nights playing Klingon Boggle with their socially dysfunctional friends, fellow CalTech scientists Howard Wolowitz and Raj Koothrappali. However, Leonard sees in Penny a whole new universe of possibilities... including love.','','','9.200000','2007-09-24','<thumb aspect="banner">http://thetvdb.com/banners/graphical/80379-g13.jpg</thumb><thumb aspect="banner">http://thetvdb.com/banners/graphical/80379-g23.jpg</thumb><thumb aspect="banner">http://thetvdb.com/banners/graphical/80379-g18.jpg</thumb><thumb aspect="banner">http://thetvdb.com/banners/graphical/80379-g17.jpg</thumb><thumb aspect="banner">http://
+  thetvdb.com/banners/graphical/80379-g6.jpg</thumb><thumb aspect="banner">http://thetvdb.com/banners/graphical/80379-g5.jpg</thumb><thumb aspect="banner">http://thetvdb.com/banners/graphical/80379-g2.jpg</thumb><thumb aspect="banner">http://thetvdb.com/banners/graphical/80379-g11.jpg</thumb><thumb aspect="banner">http://thetvdb.com/banners/graphical/80379-g12.jpg</thumb><thumb aspect="banner">http://thetvdb.com/banners/graphical/80379-g19.jpg</thumb><thumb aspect="banner">http://thetvdb.com/banners/graphical/80379-g3.jpg</thumb><thumb aspect="banner">http://thetvdb.com/banners/graphical/80379-g4.jpg</thumb><thumb aspect="banner">http://thetvdb.com/banners/graphical/80379-g15.jpg</thumb><thumb aspect="banner">http://thetvdb.com/banners/graphical/80379-g.jpg</thumb><thumb aspect="banner">http://thetvdb.com/banners/graphical/80379-g22.jpg</thumb><thumb aspect="banner">http://thetvdb.com/banners/graphical/80379-g7.jpg</thumb><thumb aspect="banner">http://thetvdb.com/banners/graphical/80379-g10.jpg</thumb><thumb
+  aspect="banner">http://thetvdb.com/banners/graphical/80379-g24.jpg</thumb><thumb aspect="banner">http://thetvdb.com/banners/graphical/80379-g8.jpg</thumb><thumb aspect="banner">http://thetvdb.com/banners/graphical/80379-g9.jpg</thumb><thumb aspect="banner">http://thetvdb.com/banners/graphical/80379-g14.jpg</thumb><thumb aspect="banner">http://thetvdb.com/banners/graphical/80379-g16.jpg</thumb><thumb aspect="banner">http://thetvdb.com/banners/graphical/80379-g21.jpg</thumb><thumb aspect="banner">http://thetvdb.com/banners/text/80379-4.jpg</thumb><thumb aspect="banner">http://thetvdb.com/banners/text/80379-2.jpg</thumb><thumb aspect="banner">http://thetvdb.com/banners/text/80379-3.jpg</thumb><thumb aspect="banner">http://thetvdb.com/banners/text/80379-5.jpg</thumb><thumb aspect="poster" type="season" season="6">http://thetvdb.com/banners/seasons/80379-6-8.jpg</thumb><thumb aspect="poster" type="season" season="0">http://thetvdb.com/banners/seasons/80379-0-4.jpg</thumb><thumb aspect="poster" type="season"
+  season="1">http://thetvdb.com/banners/seasons/80379-1-12.jpg</thumb><thumb aspect="poster" type="season" season="3">http://thetvdb.com/banners/seasons/80379-3-9.jpg</thumb><thumb aspect="poster" type="season" season="2">http://thetvdb.com/banners/seasons/80379-2-11.jpg</thumb><thumb aspect="poster" type="season" season="5">http://thetvdb.com/banners/seasons/80379-5-9.jpg</thumb><thumb aspect="poster" type="season" season="4">http://thetvdb.com/banners/seasons/80379-4-8.jpg</thumb><thumb aspect="poster" type="season" season="7">http://thetvdb.com/banners/seasons/80379-7-3.jpg</thumb><thumb aspect="poster" type="season" season="3">http://thetvdb.com/banners/seasons/80379-3-4.jpg</thumb><thumb aspect="poster" type="season" season="4">http://thetvdb.com/banners/seasons/80379-4-5.jpg</thumb><thumb aspect="poster" type="season" season="2">http://thetvdb.com/banners/seasons/80379-2-9.jpg</thumb><thumb aspect="poster" type="season" season="0">http://thetvdb.com/banners/seasons/80379-0-2.jpg</thumb><thumb aspect="
+  poster" type="season" season="6">http://thetvdb.com/banners/seasons/80379-6-6.jpg</thumb><thumb aspect="poster" type="season" season="4">http://thetvdb.com/banners/seasons/80379-4-4.jpg</thumb><thumb aspect="poster" type="season" season="6">http://thetvdb.com/banners/seasons/80379-6-2.jpg</thumb><thumb aspect="poster" type="season" season="1">http://thetvdb.com/banners/seasons/80379-1-9.jpg</thumb><thumb aspect="poster" type="season" season="6">http://thetvdb.com/banners/seasons/80379-6-4.jpg</thumb><thumb aspect="poster" type="season" season="1">http://thetvdb.com/banners/seasons/80379-1.jpg</thumb><thumb aspect="poster" type="season" season="3">http://thetvdb.com/banners/seasons/80379-3.jpg</thumb><thumb aspect="poster" type="season" season="4">http://thetvdb.com/banners/seasons/80379-4-2.jpg</thumb><thumb aspect="poster" type="season" season="5">http://thetvdb.com/banners/seasons/80379-5-7.jpg</thumb><thumb aspect="poster" type="season" season="2">http://thetvdb.com/banners/seasons/80379-2-10.jpg</
+  thumb><thumb aspect="poster" type="season" season="6">http://thetvdb.com/banners/seasons/80379-6-5.jpg</thumb><thumb aspect="poster" type="season" season="1">http://thetvdb.com/banners/seasons/80379-1-5.jpg</thumb><thumb aspect="poster" type="season" season="5">http://thetvdb.com/banners/seasons/80379-5-4.jpg</thumb><thumb aspect="poster" type="season" season="4">http://thetvdb.com/banners/seasons/80379-4.jpg</thumb><thumb aspect="poster" type="season" season="6">http://thetvdb.com/banners/seasons/80379-6-3.jpg</thumb><thumb aspect="poster" type="season" season="5">http://thetvdb.com/banners/seasons/80379-5.jpg</thumb><thumb aspect="poster" type="season" season="3">http://thetvdb.com/banners/seasons/80379-3-6.jpg</thumb><thumb aspect="poster" type="season" season="2">http://thetvdb.com/banners/seasons/80379-2.jpg</thumb><thumb aspect="poster" type="season" season="7">http://thetvdb.com/banners/seasons/80379-7.jpg</thumb><thumb aspect="poster" type="season" season="1">http://thetvdb.com/banners/seasons/80379-
+  1-7.jpg</thumb><thumb aspect="poster" type="season" season="5">http://thetvdb.com/banners/seasons/80379-5-2.jpg</thumb><thumb aspect="poster" type="season" season="5">http://thetvdb.com/banners/seasons/80379-5-3.jpg</thumb><thumb aspect="poster" type="season" season="7">http://thetvdb.com/banners/seasons/80379-7-2.jpg</thumb><thumb aspect="poster" type="season" season="1">http://thetvdb.com/banners/seasons/80379-1-2.jpg</thumb><thumb aspect="poster" type="season" season="2">http://thetvdb.com/banners/seasons/80379-2-5.jpg</thumb><thumb aspect="poster" type="season" season="4">http://thetvdb.com/banners/seasons/80379-4-3.jpg</thumb><thumb aspect="poster" type="season" season="5">http://thetvdb.com/banners/seasons/80379-5-5.jpg</thumb><thumb aspect="poster" type="season" season="0">http://thetvdb.com/banners/seasons/80379-0.jpg</thumb><thumb aspect="poster" type="season" season="3">http://thetvdb.com/banners/seasons/80379-3-5.jpg</thumb><thumb aspect="poster" type="season" season="1">http://thetvdb.com/banners/
+  seasons/80379-1-6.jpg</thumb><thumb aspect="poster" type="season" season="2">http://thetvdb.com/banners/seasons/80379-2-3.jpg</thumb><thumb aspect="poster" type="season" season="2">http://thetvdb.com/banners/seasons/80379-2-8.jpg</thumb><thumb aspect="poster" type="season" season="6">http://thetvdb.com/banners/seasons/80379-6-7.jpg</thumb><thumb aspect="poster" type="season" season="5">http://thetvdb.com/banners/seasons/80379-5-8.jpg</thumb><thumb aspect="poster" type="season" season="4">http://thetvdb.com/banners/seasons/80379-4-7.jpg</thumb><thumb aspect="poster" type="season" season="2">http://thetvdb.com/banners/seasons/80379-2-6.jpg</thumb><thumb aspect="poster" type="season" season="3">http://thetvdb.com/banners/seasons/80379-3-8.jpg</thumb><thumb aspect="poster" type="season" season="1">http://thetvdb.com/banners/seasons/80379-1-11.jpg</thumb><thumb aspect="poster" type="season" season="1">http://thetvdb.com/banners/seasons/80379-1-10.jpg</thumb><thumb aspect="poster" type="season" season="1">http://
+  thetvdb.com/banners/seasons/80379-1-8.jpg</thumb><thumb aspect="poster" type="season" season="3">http://thetvdb.com/banners/seasons/80379-3-7.jpg</thumb><thumb aspect="poster" type="season" season="2">http://thetvdb.com/banners/seasons/80379-2-4.jpg</thumb><thumb aspect="poster" type="season" season="1">http://thetvdb.com/banners/seasons/80379-1-3.jpg</thumb><thumb aspect="poster" type="season" season="1">http://thetvdb.com/banners/seasons/80379-1-4.jpg</thumb><thumb aspect="poster" type="season" season="3">http://thetvdb.com/banners/seasons/80379-3-3.jpg</thumb><thumb aspect="poster" type="season" season="2">http://thetvdb.com/banners/seasons/80379-2-7.jpg</thumb><thumb aspect="poster" type="season" season="6">http://thetvdb.com/banners/seasons/80379-6.jpg</thumb><thumb aspect="poster" type="season" season="2">http://thetvdb.com/banners/seasons/80379-2-2.jpg</thumb><thumb aspect="poster" type="season" season="5">http://thetvdb.com/banners/seasons/80379-5-6.jpg</thumb><thumb aspect="poster" type="season"
+  season="3">http://thetvdb.com/banners/seasons/80379-3-2.jpg</thumb><thumb aspect="poster" type="season" season="4">http://thetvdb.com/banners/seasons/80379-4-6.jpg</thumb><thumb aspect="banner" type="season" season="5">http://thetvdb.com/banners/seasonswide/80379-5.jpg</thumb><thumb aspect="banner" type="season" season="3">http://thetvdb.com/banners/seasonswide/80379-3-2.jpg</thumb><thumb aspect="banner" type="season" season="1">http://thetvdb.com/banners/seasonswide/80379-1-2.jpg</thumb><thumb aspect="banner" type="season" season="2">http://thetvdb.com/banners/seasonswide/80379-2-2.jpg</thumb><thumb aspect="banner" type="season" season="4">http://thetvdb.com/banners/seasonswide/80379-4-2.jpg</thumb><thumb aspect="banner" type="season" season="0">http://thetvdb.com/banners/seasonswide/80379-0.jpg</thumb><thumb aspect="banner" type="season" season="0">http://thetvdb.com/banners/seasonswide/80379-0-2.jpg</thumb><thumb aspect="banner" type="season" season="1">http://thetvdb.com/banners/seasonswide/80379-1.jpg</
+  thumb><thumb aspect="banner" type="season" season="2">http://thetvdb.com/banners/seasonswide/80379-2.jpg</thumb><thumb aspect="banner" type="season" season="4">http://thetvdb.com/banners/seasonswide/80379-4.jpg</thumb><thumb aspect="banner" type="season" season="3">http://thetvdb.com/banners/seasonswide/80379-3.jpg</thumb><thumb aspect="poster">http://thetvdb.com/banners/posters/80379-22.jpg</thumb><thumb aspect="poster">http://thetvdb.com/banners/posters/80379-18.jpg</thumb><thumb aspect="poster">http://thetvdb.com/banners/posters/80379-13.jpg</thumb><thumb aspect="poster">http://thetvdb.com/banners/posters/80379-10.jpg</thumb><thumb aspect="poster">http://thetvdb.com/banners/posters/80379-16.jpg</thumb><thumb aspect="poster">http://thetvdb.com/banners/posters/80379-1.jpg</thumb><thumb aspect="poster">http://thetvdb.com/banners/posters/80379-9.jpg</thumb><thumb aspect="poster">http://thetvdb.com/banners/posters/80379-2.jpg</thumb><thumb aspect="poster">http://thetvdb.com/banners/posters/80379-19.jpg</
+  thumb><thumb aspect="poster">http://thetvdb.com/banners/posters/80379-8.jpg</thumb><thumb aspect="poster">http://thetvdb.com/banners/posters/80379-4.jpg</thumb><thumb aspect="poster">http://thetvdb.com/banners/posters/80379-20.jpg</thumb><thumb aspect="poster">http://thetvdb.com/banners/posters/80379-23.jpg</thumb><thumb aspect="poster">http://thetvdb.com/banners/posters/80379-7.jpg</thumb><thumb aspect="poster">http://thetvdb.com/banners/posters/80379-3.jpg</thumb><thumb aspect="poster">http://thetvdb.com/banners/posters/80379-12.jpg</thumb><thumb aspect="poster">http://thetvdb.com/banners/posters/80379-11.jpg</thumb><thumb aspect="poster">http://thetvdb.com/banners/posters/80379-15.jpg</thumb><thumb aspect="poster">http://thetvdb.com/banners/posters/80379-21.jpg</thumb><thumb aspect="poster">http://thetvdb.com/banners/posters/80379-14.jpg</thumb><thumb aspect="poster">http://thetvdb.com/banners/posters/80379-17.jpg</thumb><thumb aspect="poster">http://thetvdb.com/banners/posters/80379-6.jpg</thumb><thumb
+  aspect="poster">http://thetvdb.com/banners/posters/80379-5.jpg</thumb><thumb aspect="poster" type="season" season="-1">http://thetvdb.com/banners/posters/80379-22.jpg</thumb><thumb aspect="poster" type="season" season="-1">http://thetvdb.com/banners/posters/80379-18.jpg</thumb><thumb aspect="poster" type="season" season="-1">http://thetvdb.com/banners/posters/80379-13.jpg</thumb><thumb aspect="poster" type="season" season="-1">http://thetvdb.com/banners/posters/80379-10.jpg</thumb><thumb aspect="poster" type="season" season="-1">http://thetvdb.com/banners/posters/80379-16.jpg</thumb><thumb aspect="poster" type="season" season="-1">http://thetvdb.com/banners/posters/80379-1.jpg</thumb><thumb aspect="poster" type="season" season="-1">http://thetvdb.com/banners/posters/80379-9.jpg</thumb><thumb aspect="poster" type="season" season="-1">http://thetvdb.com/banners/posters/80379-2.jpg</thumb><thumb aspect="poster" type="season" season="-1">http://thetvdb.com/banners/posters/80379-19.jpg</thumb><thumb aspect="
+  poster" type="season" season="-1">http://thetvdb.com/banners/posters/80379-8.jpg</thumb><thumb aspect="poster" type="season" season="-1">http://thetvdb.com/banners/posters/80379-4.jpg</thumb><thumb aspect="poster" type="season" season="-1">http://thetvdb.com/banners/posters/80379-20.jpg</thumb><thumb aspect="poster" type="season" season="-1">http://thetvdb.com/banners/posters/80379-23.jpg</thumb><thumb aspect="poster" type="season" season="-1">http://thetvdb.com/banners/posters/80379-7.jpg</thumb><thumb aspect="poster" type="season" season="-1">http://thetvdb.com/banners/posters/80379-3.jpg</thumb><thumb aspect="poster" type="season" season="-1">http://thetvdb.com/banners/posters/80379-12.jpg</thumb><thumb aspect="poster" type="season" season="-1">http://thetvdb.com/banners/posters/80379-11.jpg</thumb><thumb aspect="poster" type="season" season="-1">http://thetvdb.com/banners/posters/80379-15.jpg</thumb><thumb aspect="poster" type="season" season="-1">http://thetvdb.com/banners/posters/80379-21.jpg</
+  thumb><thumb aspect="poster" type="season" season="-1">http://thetvdb.com/banners/posters/80379-14.jpg</thumb><thumb aspect="poster" type="season" season="-1">http://thetvdb.com/banners/posters/80379-17.jpg</thumb><thumb aspect="poster" type="season" season="-1">http://thetvdb.com/banners/posters/80379-6.jpg</thumb><thumb aspect="poster" type="season" season="-1">http://thetvdb.com/banners/posters/80379-5.jpg</thumb>','','Comedy','','<episodeguide><url cache="80379-en.xml">http://thetvdb.com/api/1D62F2F90030C444/series/80379/all/en.zip</url></episodeguide>','<fanart url="http://thetvdb.com/banners/"><thumb dim="1920x1080" colors="|192,185,169|19,20,25|57,70,89|" preview="_cache/fanart/original/80379-2.jpg">fanart/original/80379-2.jpg</thumb><thumb dim="1920x1080" colors="|94,28,16|194,18,38|0,0,8|" preview="_cache/fanart/original/80379-34.jpg">fanart/original/80379-34.jpg</thumb><thumb dim="1280x720" colors="|254,157,210|11,12,7|191,152,111|" preview="_cache/fanart/original/80379-4.jpg">fanart/original/80379-
+  4.jpg</thumb><thumb dim="1920x1080" colors="" preview="_cache/fanart/original/80379-42.jpg">fanart/original/80379-42.jpg</thumb><thumb dim="1920x1080" colors="|236,187,155|136,136,128|254,254,252|" preview="_cache/fanart/original/80379-37.jpg">fanart/original/80379-37.jpg</thumb><thumb dim="1920x1080" colors="|112,102,152|116,109,116|235,152,146|" preview="_cache/fanart/original/80379-14.jpg">fanart/original/80379-14.jpg</thumb><thumb dim="1920x1080" colors="|150,158,161|174,75,121|150,98,58|" preview="_cache/fanart/original/80379-16.jpg">fanart/original/80379-16.jpg</thumb><thumb dim="1280x720" colors="|224,200,176|11,1,28|164,96,0|" preview="_cache/fanart/original/80379-1.jpg">fanart/original/80379-1.jpg</thumb><thumb dim="1920x1080" colors="" preview="_cache/fanart/original/80379-35.jpg">fanart/original/80379-35.jpg</thumb><thumb dim="1920x1080" colors="" preview="_cache/fanart/original/80379-40.jpg">fanart/original/80379-40.jpg</thumb><thumb dim="1920x1080" colors="|255,255,255|30,19,13|155,112,70|"
+  preview="_cache/fanart/original/80379-31.jpg">fanart/original/80379-31.jpg</thumb><thumb dim="1920x1080" colors="|241,195,172|84,54,106|254,221,206|" preview="_cache/fanart/original/80379-29.jpg">fanart/original/80379-29.jpg</thumb><thumb dim="1280x720" colors="|197,167,175|219,29,39|244,208,192|" preview="_cache/fanart/original/80379-11.jpg">fanart/original/80379-11.jpg</thumb><thumb dim="1280x720" colors="|195,129,97|244,192,168|219,148,118|" preview="_cache/fanart/original/80379-24.jpg">fanart/original/80379-24.jpg</thumb><thumb dim="1920x1080" colors="|14,10,11|255,255,255|175,167,164|" preview="_cache/fanart/original/80379-30.jpg">fanart/original/80379-30.jpg</thumb><thumb dim="1920x1080" colors="" preview="_cache/fanart/original/80379-19.jpg">fanart/original/80379-19.jpg</thumb><thumb dim="1920x1080" colors="|246,199,69|98,55,38|161,127,82|" preview="_cache/fanart/original/80379-9.jpg">fanart/original/80379-9.jpg</thumb><thumb dim="1280x720" colors="|129,22,14|48,50,39|223,182,64|" preview="_cache/
+  fanart/original/80379-13.jpg">fanart/original/80379-13.jpg</thumb><thumb dim="1920x1080" colors="" preview="_cache/fanart/original/80379-45.jpg">fanart/original/80379-45.jpg</thumb><thumb dim="1920x1080" colors="" preview="_cache/fanart/original/80379-33.jpg">fanart/original/80379-33.jpg</thumb><thumb dim="1280x720" colors="|103,77,60|224,180,153|129,100,84|" preview="_cache/fanart/original/80379-10.jpg">fanart/original/80379-10.jpg</thumb><thumb dim="1920x1080" colors="" preview="_cache/fanart/original/80379-23.jpg">fanart/original/80379-23.jpg</thumb><thumb dim="1280x720" colors="|219,29,39|0,4,10|88,117,135|" preview="_cache/fanart/original/80379-12.jpg">fanart/original/80379-12.jpg</thumb><thumb dim="1920x1080" colors="|226,209,165|51,18,9|89,54,24|" preview="_cache/fanart/original/80379-5.jpg">fanart/original/80379-5.jpg</thumb><thumb dim="1280x720" colors="" preview="_cache/fanart/original/80379-26.jpg">fanart/original/80379-26.jpg</thumb><thumb dim="1280x720" colors="|249,251,229|126,47,53|251,226,
+  107|" preview="_cache/fanart/original/80379-27.jpg">fanart/original/80379-27.jpg</thumb><thumb dim="1920x1080" colors="|233,218,65|30,27,46|173,53,18|" preview="_cache/fanart/original/80379-32.jpg">fanart/original/80379-32.jpg</thumb><thumb dim="1280x720" colors="|248,248,248|64,54,78|188,193,196|" preview="_cache/fanart/original/80379-3.jpg">fanart/original/80379-3.jpg</thumb><thumb dim="1280x720" colors="" preview="_cache/fanart/original/80379-25.jpg">fanart/original/80379-25.jpg</thumb><thumb dim="1280x720" colors="|159,150,133|59,39,32|168,147,104|" preview="_cache/fanart/original/80379-7.jpg">fanart/original/80379-7.jpg</thumb><thumb dim="1920x1080" colors="|221,191,157|11,7,6|237,146,102|" preview="_cache/fanart/original/80379-21.jpg">fanart/original/80379-21.jpg</thumb><thumb dim="1280x720" colors="" preview="_cache/fanart/original/80379-28.jpg">fanart/original/80379-28.jpg</thumb><thumb dim="1920x1080" colors="" preview="_cache/fanart/original/80379-36.jpg">fanart/original/80379-36.jpg</thumb><thumb
+  dim="1920x1080" colors="|253,237,186|33,25,22|245,144,38|" preview="_cache/fanart/original/80379-38.jpg">fanart/original/80379-38.jpg</thumb><thumb dim="1920x1080" colors="|174,111,68|243,115,50|252,226,45|" preview="_cache/fanart/original/80379-20.jpg">fanart/original/80379-20.jpg</thumb><thumb dim="1920x1080" colors="|63,56,123|87,59,47|63,56,123|" preview="_cache/fanart/original/80379-17.jpg">fanart/original/80379-17.jpg</thumb><thumb dim="1920x1080" colors="" preview="_cache/fanart/original/80379-43.jpg">fanart/original/80379-43.jpg</thumb><thumb dim="1280x720" colors="|69,68,161|142,118,142|222,191,137|" preview="_cache/fanart/original/80379-22.jpg">fanart/original/80379-22.jpg</thumb><thumb dim="1280x720" colors="|1,108,206|242,209,192|250,197,163|" preview="_cache/fanart/original/80379-15.jpg">fanart/original/80379-15.jpg</thumb><thumb dim="1280x720" colors="|239,229,237|0,0,0|167,136,115|" preview="_cache/fanart/original/80379-18.jpg">fanart/original/80379-18.jpg</thumb><thumb dim="1280x720" colors=""
+  preview="_cache/fanart/original/80379-6.jpg">fanart/original/80379-6.jpg</thumb><thumb dim="1280x720" colors="" preview="_cache/fanart/original/80379-8.jpg">fanart/original/80379-8.jpg</thumb><thumb dim="1280x720" colors="" preview="_cache/fanart/original/80379-41.jpg">fanart/original/80379-41.jpg</thumb><thumb dim="1920x1080" colors="" preview="_cache/fanart/original/80379-44.jpg">fanart/original/80379-44.jpg</thumb><thumb dim="1280x720" colors="" preview="_cache/fanart/original/80379-39.jpg">fanart/original/80379-39.jpg</thumb></fanart>','80379','TV-PG','CBS','','/tmp/tvshows/The.Big.Bang.Theory/','1',NULL,NULL,NULL,NULL,NULL,NULL);
+  CREATE TABLE episode ( idEpisode integer primary key, idFile integer,c00 text,c01 text,c02 text,c03 text,c04 text,c05 text,c06 text,c07 text,c08 text,c09 text,c10 text,c11 text,c12 varchar(24),c13 varchar(24),c14 text,c15 text,c16 text,c17 varchar(24),c18 text,c19 text,c20 text,c21 text,c22 text,c23 text, idShow integer);
+  INSERT INTO "episode" VALUES(1,1,'Pilot','Brilliant physicist roommates Leonard and Sheldon meet their new neighbor Penny, who begins showing them that as much as they know about science, they know little about actual living.','','7.700000','Chuck Lorre / Bill Prady','2007-09-24','<thumb>http://thetvdb.com/banners/episodes/80379/332484.jpg</thumb>','',NULL,'1800','James Burrows','','1','1','','-1','-1','-1','/tmp/tvshows/The.Big.Bang.Theory/The.Big.Bang.Theory.S01E01.WEB-DL.AAC2.0.H264.mkv','2','332484',NULL,NULL,NULL,1);
+  CREATE TABLE tvshowlinkpath (idShow integer, idPath integer);
+  INSERT INTO "tvshowlinkpath" VALUES(1,2);
+  CREATE TABLE seasons ( idSeason integer primary key, idShow integer, season integer);
+  INSERT INTO "seasons" VALUES(1,1,-1);
+  INSERT INTO "seasons" VALUES(2,1,0);
+  INSERT INTO "seasons" VALUES(3,1,1);
+  INSERT INTO "seasons" VALUES(4,1,2);
+  INSERT INTO "seasons" VALUES(5,1,3);
+  INSERT INTO "seasons" VALUES(6,1,4);
+  INSERT INTO "seasons" VALUES(7,1,5);
+  INSERT INTO "seasons" VALUES(8,1,6);
+  INSERT INTO "seasons" VALUES(9,1,7);
+  CREATE TABLE art(art_id INTEGER PRIMARY KEY, media_id INTEGER, media_type TEXT, type TEXT, url TEXT);
+  INSERT INTO "art" VALUES(1,1,'actor','thumb','http://thetvdb.com/banners/actors/73597.jpg');
+  INSERT INTO "art" VALUES(2,2,'actor','thumb','http://thetvdb.com/banners/actors/73596.jpg');
+  INSERT INTO "art" VALUES(3,3,'actor','thumb','http://thetvdb.com/banners/actors/73595.jpg');
+  INSERT INTO "art" VALUES(4,4,'actor','thumb','http://thetvdb.com/banners/actors/73599.jpg');
+  INSERT INTO "art" VALUES(5,5,'actor','thumb','http://thetvdb.com/banners/actors/73598.jpg');
+  INSERT INTO "art" VALUES(6,6,'actor','thumb','http://thetvdb.com/banners/actors/283158.jpg');
+  INSERT INTO "art" VALUES(7,7,'actor','thumb','http://thetvdb.com/banners/actors/283157.jpg');
+  INSERT INTO "art" VALUES(8,8,'actor','thumb','http://thetvdb.com/banners/actors/91271.jpg');
+  INSERT INTO "art" VALUES(9,9,'actor','thumb','http://thetvdb.com/banners/actors/294178.jpg');
+  INSERT INTO "art" VALUES(10,10,'actor','thumb','http://thetvdb.com/banners/actors/283159.jpg');
+  INSERT INTO "art" VALUES(11,1,'tvshow','banner','http://thetvdb.com/banners/graphical/80379-g13.jpg');
+  INSERT INTO "art" VALUES(12,1,'tvshow','fanart','http://thetvdb.com/banners/fanart/original/80379-2.jpg');
+  INSERT INTO "art" VALUES(13,1,'tvshow','poster','http://thetvdb.com/banners/posters/80379-22.jpg');
+  INSERT INTO "art" VALUES(14,1,'season','poster','http://thetvdb.com/banners/posters/80379-22.jpg');
+  INSERT INTO "art" VALUES(15,2,'season','banner','http://thetvdb.com/banners/seasonswide/80379-0.jpg');
+  INSERT INTO "art" VALUES(16,2,'season','poster','http://thetvdb.com/banners/seasons/80379-0-4.jpg');
+  INSERT INTO "art" VALUES(17,3,'season','banner','http://thetvdb.com/banners/seasonswide/80379-1-2.jpg');
+  INSERT INTO "art" VALUES(18,3,'season','poster','http://thetvdb.com/banners/seasons/80379-1-12.jpg');
+  INSERT INTO "art" VALUES(19,4,'season','banner','http://thetvdb.com/banners/seasonswide/80379-2-2.jpg');
+  INSERT INTO "art" VALUES(20,4,'season','poster','http://thetvdb.com/banners/seasons/80379-2-11.jpg');
+  INSERT INTO "art" VALUES(21,5,'season','banner','http://thetvdb.com/banners/seasonswide/80379-3-2.jpg');
+  INSERT INTO "art" VALUES(22,5,'season','poster','http://thetvdb.com/banners/seasons/80379-3-9.jpg');
+  INSERT INTO "art" VALUES(23,6,'season','banner','http://thetvdb.com/banners/seasonswide/80379-4-2.jpg');
+  INSERT INTO "art" VALUES(24,6,'season','poster','http://thetvdb.com/banners/seasons/80379-4-8.jpg');
+  INSERT INTO "art" VALUES(25,7,'season','banner','http://thetvdb.com/banners/seasonswide/80379-5.jpg');
+  INSERT INTO "art" VALUES(26,7,'season','poster','http://thetvdb.com/banners/seasons/80379-5-9.jpg');
+  INSERT INTO "art" VALUES(27,8,'season','poster','http://thetvdb.com/banners/seasons/80379-6-8.jpg');
+  INSERT INTO "art" VALUES(28,9,'season','poster','http://thetvdb.com/banners/seasons/80379-7-3.jpg');
+  INSERT INTO "art" VALUES(29,1,'episode','thumb','http://thetvdb.com/banners/episodes/80379/332484.jpg');
+  CREATE INDEX ix_bookmark ON bookmark (idFile, type);
+  CREATE INDEX ix_path ON path ( strPath );
+  CREATE INDEX ix_files ON files ( idPath, strFilename );
+  CREATE UNIQUE INDEX ix_episode_file_1 on episode (idEpisode, idFile);
+  CREATE UNIQUE INDEX id_episode_file_2 on episode (idFile, idEpisode);
+  CREATE INDEX ix_episode_season_episode on episode (c12, c13);
+  CREATE INDEX ix_episode_bookmark on episode (c17);
+  CREATE INDEX ix_episode_show1 on episode(idEpisode,idShow);
+  CREATE INDEX ix_episode_show2 on episode(idShow,idEpisode);
+  CREATE UNIQUE INDEX ix_tvshowlinkpath_1 ON tvshowlinkpath ( idShow, idPath );
+  CREATE UNIQUE INDEX ix_tvshowlinkpath_2 ON tvshowlinkpath ( idPath, idShow );
+  CREATE INDEX ixEpisodeBasePath ON episode ( c19 );
+  CREATE INDEX ixTVShowBasePath on tvshow ( c17 );
+  CREATE INDEX ix_seasons ON seasons (idShow, season);
+  CREATE INDEX ix_art ON art(media_id, media_type, type);
+  CREATE VIEW episodeview
+  AS
+    SELECT episode.*,
+           files.strfilename           AS strFileName,
+           path.strpath                AS strPath,
+           files.playcount             AS playCount,
+           files.lastplayed            AS lastPlayed,
+           files.dateadded             AS dateAdded,
+           tvshow.c00                  AS strTitle,
+           tvshow.c14                  AS strStudio,
+           tvshow.c05                  AS premiered,
+           tvshow.c13                  AS mpaa,
+           tvshow.c16                  AS strShowPath,
+           bookmark.timeinseconds      AS resumeTimeInSeconds,
+           bookmark.totaltimeinseconds AS totalTimeInSeconds,
+           seasons.idseason            AS idSeason
+    FROM   episode
+           JOIN files
+             ON files.idfile = episode.idfile
+           JOIN tvshow
+             ON tvshow.idshow = episode.idshow
+           LEFT JOIN seasons
+                  ON seasons.idshow = episode.idshow
+                     AND seasons.season = episode.c12
+           JOIN path
+             ON files.idpath = path.idpath
+           LEFT JOIN bookmark
+                  ON bookmark.idfile = episode.idfile
+                     AND bookmark.type = 1; 
+  CREATE VIEW tvshowview
+  AS
+    SELECT tvshow.*,
+           path.strpath                              AS strPath,
+           path.dateadded                            AS dateAdded,
+           Max(files.lastplayed)                     AS lastPlayed,
+           NULLIF(Count(episode.c12), 0)             AS totalCount,
+           Count(files.playcount)                    AS watchedcount,
+           NULLIF(Count(DISTINCT( episode.c12 )), 0) AS totalSeasons
+    FROM   tvshow
+           LEFT JOIN tvshowlinkpath
+                  ON tvshowlinkpath.idshow = tvshow.idshow
+           LEFT JOIN path
+                  ON path.idpath = tvshowlinkpath.idpath
+           LEFT JOIN episode
+                  ON episode.idshow = tvshow.idshow
+           LEFT JOIN files
+                  ON files.idfile = episode.idfile
+    GROUP  BY tvshow.idshow; 
+  SELECT
+    episodeview.c12,
+    path.strPath,
+    tvshowview.c00,
+    tvshowview.c01,
+    tvshowview.c05,
+    tvshowview.c08,
+    tvshowview.c14,
+    tvshowview.c13,
+    seasons.idSeason,
+    count(1),
+    count(files.playCount)
+  FROM episodeview
+      JOIN tvshowview ON tvshowview.idShow = episodeview.idShow
+      JOIN seasons ON (seasons.idShow = tvshowview.idShow
+                       AND seasons.season = episodeview.c12)
+      JOIN files ON files.idFile = episodeview.idFile
+      JOIN tvshowlinkpath ON tvshowlinkpath.idShow = tvshowview.idShow
+      JOIN path ON path.idPath = tvshowlinkpath.idPath
+  WHERE tvshowview.idShow = 1
+  GROUP BY episodeview.c12;
+} {1 /tmp/tvshows/The.Big.Bang.Theory/ {The Big Bang Theory} {Leonard Hofstadter and Sheldon Cooper are brilliant physicists, the kind of "beautiful minds" that understand how the universe works. But none of that genius helps them interact with people, especially women. All this begins to change when a free-spirited beauty named Penny moves in next door. Sheldon, Leonard's roommate, is quite content spending his nights playing Klingon Boggle with their socially dysfunctional friends, fellow CalTech scientists Howard Wolowitz and Raj Koothrappali. However, Leonard sees in Penny a whole new universe of possibilities... including love.} 2007-09-24 Comedy CBS TV-PG 3 1 0}
+
+##############################################################################
+# 2015-05-18.  Make sure transitive constraints are avoided when column
+# affinities and collating sequences get in the way.
+#
+db close
+forcedelete test.db
+sqlite3 db test.db
+do_execsql_test transitive1-500 {
+  CREATE TABLE x(i INTEGER PRIMARY KEY, y TEXT);
+  INSERT INTO x VALUES(10, '10');
+  SELECT * FROM x WHERE x.y>='1' AND x.y<'2' AND x.i=x.y;
+} {10 10}
+do_execsql_test transitive1-510 {
+  CREATE TABLE t1(x TEXT); 
+  CREATE TABLE t2(y TEXT); 
+  INSERT INTO t1 VALUES('abc');
+  INSERT INTO t2 VALUES('ABC');
+  SELECT * FROM t1 CROSS JOIN t2 WHERE (x=y COLLATE nocase) AND y='ABC';
+} {abc ABC}
+do_execsql_test transitive1-520 {
+  CREATE TABLE t3(i INTEGER PRIMARY KEY, t TEXT);
+  INSERT INTO t3 VALUES(10, '10');
+  SELECT * FROM t3 WHERE i=t AND t = '10 ';
+} {}
+do_execsql_test transitive1-530 {
+  CREATE TABLE u1(x TEXT, y INTEGER, z TEXT);
+  CREATE INDEX i1 ON u1(x);
+  INSERT INTO u1 VALUES('00013', 13, '013');
+  SELECT * FROM u1 WHERE x=y AND y=z AND z='013';
+} {00013 13 013}
+do_execsql_test transitive1-540 {
+  CREATE TABLE b1(x, y);
+  INSERT INTO b1 VALUES('abc', 'ABC');
+  CREATE INDEX b1x ON b1(x);
+  SELECT * FROM b1 WHERE (x=y COLLATE nocase) AND y='ABC';
+} {abc ABC}
+do_execsql_test transitive1-550 {
+  CREATE TABLE c1(x, y COLLATE nocase, z);
+  INSERT INTO c1 VALUES('ABC', 'ABC', 'abc');
+  SELECT * FROM c1 WHERE x=y AND y=z AND z='abc';
+} {ABC ABC abc}
+do_execsql_test transitive1-560 {
+  CREATE INDEX c1x ON c1(x);
+  SELECT * FROM c1 WHERE x=y AND y=z AND z='abc';
+} {ABC ABC abc}
+do_execsql_test transitive1-560eqp {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM c1 WHERE x=y AND y=z AND z='abc';
+} {/SCAN c1/}
+do_execsql_test transitive1-570 {
+  SELECT * FROM c1 WHERE x=y AND z=y AND z='abc';
+} {}
+do_execsql_test transitive1-570eqp {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM c1 WHERE x=y AND z=y AND z='abc';
+} {/SEARCH c1 USING INDEX c1x/}
+
+# 2021-05-04 forum https://sqlite.org/forum/forumpost/eb8613976a
+reset_db
+do_execsql_test transitive1-600 {
+  CREATE TABLE t0(a0 INT, b1 INT);
+  CREATE INDEX t0b1 ON t0(b1);
+  CREATE TABLE t1(w,x,y,z3 INT);
+  INSERT INTO t0(a0, b1) VALUES (0,1);
+  INSERT INTO t1(w,x,y,z3) VALUES (7,8,9,1);
+} {}
+do_execsql_test transitive1-610 {
+  SELECT ALL * FROM t0,t1 WHERE b1=z3 AND a0=z3;
+} {}
+do_execsql_test transitive1-620 {
+  SELECT ALL * FROM t0,t1 WHERE likely(b1=z3) AND a0=z3;
+} {}
+do_execsql_test transitive1-630 {
+  DROP TABLE t0;
+  DROP TABLE t1;
+  CREATE TABLE t0(c0 INT, c1 INT UNIQUE);
+  CREATE TABLE t1(c0 INT);
+  INSERT INTO t0(c0, c1) VALUES (0, 1);
+  INSERT INTO t1(c0) VALUES (1);
+  SELECT ALL * FROM t1 NATURAL JOIN t0 WHERE (t1.c0=t0.c1);
+  SELECT ALL * FROM t1 NATURAL JOIN t0 WHERE (likely(t1.c0=t0.c1));
+  SELECT ALL * FROM t1,t0 WHERE (likely(t1.c0=t0.c1) AND t1.c0=t0.c0);
+} {}
+
+#-------------------------------------------------------------------------
+# 2021-08-31 forum https://sqlite.org/forum/forumpost/8d1b58f112
+reset_db
+do_execsql_test transitive1-700 {
+  CREATE TABLE t1(a INT PRIMARY KEY);
+  INSERT INTO t1(a) VALUES(1),(2),(3);
+  CREATE TABLE t2(x INTEGER PRIMARY KEY,y INT);
+  INSERT INTO t2(y) VALUES(2),(3);
+}
+
+do_execsql_test transitive1-710 {
+  SELECT * FROM t1 CROSS JOIN t2 WHERE t2.y=t1.a AND t1.a=t2.x
+} {}
+
+do_execsql_test transitive1-720 {
+  SELECT * FROM t1 CROSS JOIN t2 WHERE likely(t2.y=t1.a) AND unlikely(t1.a=t2.x)
+} {}
+
+# 2021-10-04 forum https://sqlite.org/forum/forumpost/a65cacbf5e1c41ba
+#
+reset_db
+do_execsql_test transitive1-800 {
+  CREATE TABLE t1(a INT);
+  INSERT INTO t1 VALUES(0),(3);
+  CREATE TABLE t2(b INT UNIQUE, c INT);
+  INSERT INTO t2 VALUES(1,4)	,(0,5);
+  SELECT * FROM t1 WHERE EXISTS (SELECT 1 FROM t2 WHERE c=a AND b IS a);
+  SELECT * FROM t1 WHERE EXISTS (SELECT 1 FROM t2 WHERE a=c AND a IS b);
+  SELECT * FROM t1 WHERE EXISTS (SELECT 1 FROM t2 WHERE a=c AND b IS a);
+  SELECT * FROM t1 WHERE EXISTS (SELECT 1 FROM t2 WHERE c=a AND a IS b);
+} {}
+do_execsql_test transitive1-810 {
+  CREATE TABLE t3(a INTEGER PRIMARY KEY,b);
+  INSERT INTO t3(a,b) VALUES(1,2),(5,5),(7,11);
+  SELECT * FROM t3 WHERE a=b AND a='5';
+} {5 5}
+do_execsql_test transitive1-811 {
+  SELECT * FROM t3 WHERE a=b AND a='4';
+} {}
+do_execsql_test transitive1-812 {
+  SELECT * FROM t3 WHERE a=b AND a='7';
+} {}
+do_execsql_test transitive1-813 {
+  SELECT * FROM t3 WHERE a=b AND a='5x';
+} {}
+
+finish_test
diff --git a/test/trigger1.test b/test/trigger1.test
new file mode 100644
index 0000000000000000000000000000000000000000..afeb7ddccbf6b6ef4d97300f40adb39f7c513e95
--- /dev/null
+++ b/test/trigger1.test
@@ -0,0 +1,854 @@
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file tests creating and dropping triggers, and interaction thereof
+# with the database COMMIT/ROLLBACK logic.
+#
+# 1. CREATE and DROP TRIGGER tests
+# trigger1-1.1: Error if table does not exist
+# trigger1-1.2: Error if trigger already exists
+# trigger1-1.3: Created triggers are deleted if the transaction is rolled back
+# trigger1-1.4: DROP TRIGGER removes trigger
+# trigger1-1.5: Dropped triggers are restored if the transaction is rolled back
+# trigger1-1.6: Error if dropped trigger doesn't exist
+# trigger1-1.7: Dropping the table automatically drops all triggers
+# trigger1-1.8: A trigger created on a TEMP table is not inserted into sqlite_master
+# trigger1-1.9: Ensure that we cannot create a trigger on sqlite_master
+# trigger1-1.10:
+# trigger1-1.11:
+# trigger1-1.12: Ensure that INSTEAD OF triggers cannot be created on tables
+# trigger1-1.13: Ensure that AFTER triggers cannot be created on views
+# trigger1-1.14: Ensure that BEFORE triggers cannot be created on views
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable !trigger||!compound {
+  finish_test
+  return
+}
+
+do_test trigger1-1.1.1 {
+   catchsql {
+     CREATE TRIGGER trig UPDATE ON no_such_table BEGIN
+       SELECT * from sqlite_master;
+     END;
+   } 
+} {1 {no such table: main.no_such_table}}
+
+ifcapable tempdb {
+  do_test trigger1-1.1.2 {
+     catchsql {
+       CREATE TEMP TRIGGER trig UPDATE ON no_such_table BEGIN
+         SELECT * from sqlite_master;
+       END;
+     } 
+  } {1 {no such table: no_such_table}}
+}
+
+execsql {
+    CREATE TABLE t1(a);
+}
+do_test trigger1-1.1.3 {
+  catchsql {
+     CREATE TRIGGER trig UPDATE ON t1 FOR EACH STATEMENT BEGIN
+        SELECT * FROM sqlite_master;
+     END;
+  }
+} {1 {near "STATEMENT": syntax error}}
+execsql {
+        CREATE TRIGGER tr1 INSERT ON t1 BEGIN
+          INSERT INTO t1 values(1);
+         END;
+}
+do_test trigger1-1.2.0 {
+    catchsql {
+        CREATE TRIGGER IF NOT EXISTS tr1 DELETE ON t1 BEGIN
+            SELECT * FROM sqlite_master;
+         END
+     }
+} {0 {}}
+do_test trigger1-1.2.1 {
+    catchsql {
+        CREATE TRIGGER tr1 DELETE ON t1 BEGIN
+            SELECT * FROM sqlite_master;
+         END
+     }
+} {1 {trigger tr1 already exists}}
+do_test trigger1-1.2.2 {
+    catchsql {
+        CREATE TRIGGER "tr1" DELETE ON t1 BEGIN
+            SELECT * FROM sqlite_master;
+         END
+     }
+} {1 {trigger "tr1" already exists}}
+do_test trigger1-1.2.3 {
+    catchsql {
+        CREATE TRIGGER [tr1] DELETE ON t1 BEGIN
+            SELECT * FROM sqlite_master;
+         END
+     }
+} {1 {trigger [tr1] already exists}}
+
+do_test trigger1-1.3 {
+    catchsql {
+        BEGIN;
+        CREATE TRIGGER tr2 INSERT ON t1 BEGIN
+            SELECT * from sqlite_master; END;
+        ROLLBACK;
+        CREATE TRIGGER tr2 INSERT ON t1 BEGIN
+            SELECT * from sqlite_master; END;
+    }
+} {0 {}}
+
+do_test trigger1-1.4 {
+    catchsql {
+        DROP TRIGGER IF EXISTS tr1;
+        CREATE TRIGGER tr1 DELETE ON t1 BEGIN
+            SELECT * FROM sqlite_master;
+        END
+    }
+} {0 {}}
+
+do_test trigger1-1.5 {
+    execsql {
+        BEGIN;
+        DROP TRIGGER tr2;
+        ROLLBACK;
+        DROP TRIGGER tr2;
+    }
+} {}
+
+do_test trigger1-1.6.1 {
+    catchsql {
+        DROP TRIGGER IF EXISTS biggles;
+    }
+} {0 {}}
+
+do_test trigger1-1.6.2 {
+    catchsql {
+        DROP TRIGGER biggles;
+    }
+} {1 {no such trigger: biggles}}
+
+do_test trigger1-1.7 {
+    catchsql {
+        DROP TABLE t1;
+        DROP TRIGGER tr1;
+    }
+} {1 {no such trigger: tr1}}
+
+ifcapable tempdb {
+  execsql {
+    CREATE TEMP TABLE temp_table(a);
+  }
+  do_test trigger1-1.8 {
+    execsql {
+          CREATE TRIGGER temp_trig UPDATE ON temp_table BEGIN
+              SELECT * from sqlite_master;
+          END;
+          SELECT count(*) FROM sqlite_master WHERE name = 'temp_trig';
+    } 
+  } {0}
+}
+
+do_test trigger1-1.9 {
+  catchsql {
+    CREATE TRIGGER tr1 AFTER UPDATE ON sqlite_master BEGIN
+       SELECT * FROM sqlite_master;
+    END;
+  }
+} {1 {cannot create trigger on system table}}
+
+# Check to make sure that a DELETE statement within the body of
+# a trigger does not mess up the DELETE that caused the trigger to
+# run in the first place.
+#
+do_test trigger1-1.10 {
+  execsql {
+    create table t1(a,b);
+    insert into t1 values(1,'a');
+    insert into t1 values(2,'b');
+    insert into t1 values(3,'c');
+    insert into t1 values(4,'d');
+    create trigger r1 after delete on t1 for each row begin
+      delete from t1 WHERE a=old.a+2;
+    end;
+    delete from t1 where a=1 OR a=3;
+    select * from t1;
+    drop table t1;
+  }
+} {2 b 4 d}
+
+do_test trigger1-1.11 {
+  execsql {
+    create table t1(a,b);
+    insert into t1 values(1,'a');
+    insert into t1 values(2,'b');
+    insert into t1 values(3,'c');
+    insert into t1 values(4,'d');
+    create trigger r1 after update on t1 for each row begin
+      delete from t1 WHERE a=old.a+2;
+    end;
+    update t1 set b='x-' || b where a=1 OR a=3;
+    select * from t1;
+    drop table t1;
+  }
+} {1 x-a 2 b 4 d}
+
+# Ensure that we cannot create INSTEAD OF triggers on tables
+do_test trigger1-1.12 {
+  catchsql {
+    create table t1(a,b);
+    create trigger t1t instead of update on t1 for each row begin
+      delete from t1 WHERE a=old.a+2;
+    end;
+  }
+} {1 {cannot create INSTEAD OF trigger on table: t1}}
+
+ifcapable view {
+# Ensure that we cannot create BEFORE triggers on views
+do_test trigger1-1.13 {
+  catchsql {
+    create view v1 as select * from t1;
+    create trigger v1t before update on v1 for each row begin
+      delete from t1 WHERE a=old.a+2;
+    end;
+  }
+} {1 {cannot create BEFORE trigger on view: v1}}
+# Ensure that we cannot create AFTER triggers on views
+do_test trigger1-1.14 {
+  catchsql {
+    drop view v1;
+    create view v1 as select * from t1;
+    create trigger v1t AFTER update on v1 for each row begin
+      delete from t1 WHERE a=old.a+2;
+    end;
+  }
+} {1 {cannot create AFTER trigger on view: v1}}
+} ;# ifcapable view
+
+# Check for memory leaks in the trigger parser
+#
+do_test trigger1-2.1 {
+  catchsql {
+    CREATE TRIGGER r1 AFTER INSERT ON t1 BEGIN
+      SELECT * FROM;  -- Syntax error
+    END;
+  }
+} {1 {near ";": syntax error}}
+do_test trigger1-2.2 {
+  catchsql {
+    CREATE TRIGGER r1 AFTER INSERT ON t1 BEGIN
+      SELECT * FROM t1;
+      SELECT * FROM;  -- Syntax error
+    END;
+  }
+} {1 {near ";": syntax error}}
+
+# Create a trigger that refers to a table that might not exist.
+#
+ifcapable tempdb {
+  do_test trigger1-3.1 {
+    execsql {
+      CREATE TEMP TABLE t2(x,y);
+    }
+    catchsql {
+      CREATE TRIGGER r1 AFTER INSERT ON t1 BEGIN
+        INSERT INTO t2 VALUES(NEW.a,NEW.b);
+      END;
+    }
+  } {0 {}}
+  do_test trigger1-3.2 {
+    catchsql {
+      INSERT INTO t1 VALUES(1,2);
+      SELECT * FROM t2;
+    }
+  } {1 {no such table: main.t2}}
+  do_test trigger1-3.3 {
+    db close
+    set rc [catch {sqlite3 db test.db} err]
+    if {$rc} {lappend rc $err}
+    set rc
+  } {0}
+  do_test trigger1-3.4 {
+    catchsql {
+      INSERT INTO t1 VALUES(1,2);
+      SELECT * FROM t2;
+    }
+  } {1 {no such table: main.t2}}
+  do_test trigger1-3.5 {
+    catchsql {
+      CREATE TEMP TABLE t2(x,y);
+      INSERT INTO t1 VALUES(1,2);
+      SELECT * FROM t2;
+    }
+  } {1 {no such table: main.t2}}
+  do_test trigger1-3.6.1 {
+    catchsql {
+      DROP TRIGGER r1;
+      CREATE TEMP TRIGGER r1 AFTER INSERT ON t1 BEGIN
+        INSERT INTO t2 VALUES(NEW.a,NEW.b), (NEW.b*100, NEW.a*100);
+      END;
+      INSERT INTO t1 VALUES(1,2);
+      SELECT * FROM t2;
+    }
+  } {0 {1 2 200 100}}
+  do_test trigger1-3.6.2 {
+    catchsql {
+      DROP TRIGGER r1;
+      DELETE FROM t1;
+      DELETE FROM t2;
+      CREATE TEMP TRIGGER r1 AFTER INSERT ON t1 BEGIN
+        INSERT INTO t2 VALUES(NEW.a,NEW.b);
+      END;
+      INSERT INTO t1 VALUES(1,2);
+      SELECT * FROM t2;
+    }
+  } {0 {1 2}}
+  do_test trigger1-3.7 {
+    execsql {
+      DROP TABLE t2;
+      CREATE TABLE t2(x,y);
+      SELECT * FROM t2;
+    }
+  } {}
+
+  # There are two versions of trigger1-3.8 and trigger1-3.9. One that uses
+  # compound SELECT statements, and another that does not.
+  ifcapable compound {
+  do_test trigger1-3.8 {
+    execsql {
+      INSERT INTO t1 VALUES(3,4);
+      SELECT * FROM t1 UNION ALL SELECT * FROM t2;
+    }
+  } {1 2 3 4 3 4}
+  do_test trigger1-3.9 {
+    db close
+    sqlite3 db test.db
+    execsql {
+      INSERT INTO t1 VALUES(5,6);
+      SELECT * FROM t1 UNION ALL SELECT * FROM t2;
+    }
+  } {1 2 3 4 5 6 3 4}
+  } ;# ifcapable compound
+  ifcapable !compound {
+  do_test trigger1-3.8 {
+    execsql {
+      INSERT INTO t1 VALUES(3,4);
+      SELECT * FROM t1; 
+      SELECT * FROM t2;
+    }
+  } {1 2 3 4 3 4}
+  do_test trigger1-3.9 {
+    db close
+    sqlite3 db test.db
+    execsql {
+      INSERT INTO t1 VALUES(5,6);
+      SELECT * FROM t1;
+      SELECT * FROM t2;
+    }
+  } {1 2 3 4 5 6 3 4}
+  } ;# ifcapable !compound
+
+  do_test trigger1-4.1 {
+    execsql {
+      CREATE TEMP TRIGGER r1 BEFORE INSERT ON t1 BEGIN
+        INSERT INTO t2 VALUES(NEW.a,NEW.b);
+      END;
+      INSERT INTO t1 VALUES(7,8);
+      SELECT * FROM t2;
+    }
+  } {3 4 7 8}
+  do_test trigger1-4.2 {
+    sqlite3 db2 test.db
+    execsql {
+      INSERT INTO t1 VALUES(9,10);
+    } db2;
+    db2 close
+    execsql {
+      SELECT * FROM t2;
+    }
+  } {3 4 7 8}
+  do_test trigger1-4.3 {
+    execsql {
+      DROP TABLE t1;
+      SELECT * FROM t2;
+    };
+  } {3 4 7 8}
+  do_test trigger1-4.4 {
+    db close
+    sqlite3 db test.db
+    execsql {
+      SELECT * FROM t2;
+    };
+  } {3 4 7 8}
+} else {
+  execsql {
+    CREATE TABLE t2(x,y);
+    DROP TABLE t1;
+    INSERT INTO t2 VALUES(3, 4);
+    INSERT INTO t2 VALUES(7, 8);
+  }
+}
+
+
+integrity_check trigger1-5.1
+
+# Create a trigger with the same name as a table.  Make sure the
+# trigger works.  Then drop the trigger.  Make sure the table is
+# still there.
+#
+set view_v1 {}
+ifcapable view {
+  set view_v1 {view v1}
+}
+do_test trigger1-6.1 {
+  execsql {SELECT type, name FROM sqlite_master}
+} [concat $view_v1 {table t2}]
+do_test trigger1-6.2 {
+  execsql {
+    CREATE TRIGGER t2 BEFORE DELETE ON t2 BEGIN
+      SELECT RAISE(ABORT,'deletes are not permitted');
+    END;
+    SELECT type, name FROM sqlite_master;
+  }
+} [concat $view_v1 {table t2 trigger t2}]
+do_test trigger1-6.3 {
+  catchsql {DELETE FROM t2}
+} {1 {deletes are not permitted}}
+verify_ex_errcode trigger1-6.3b SQLITE_CONSTRAINT_TRIGGER
+do_test trigger1-6.4 {
+  execsql {SELECT * FROM t2}
+} {3 4 7 8}
+do_test trigger1-6.5 {
+  db close
+  sqlite3 db test.db
+  execsql {SELECT type, name FROM sqlite_master}
+} [concat $view_v1 {table t2 trigger t2}]
+do_test trigger1-6.6 {
+  execsql {
+    DROP TRIGGER t2;
+    SELECT type, name FROM sqlite_master;
+  }
+} [concat $view_v1 {table t2}]
+do_test trigger1-6.7 {
+  execsql {SELECT * FROM t2}
+} {3 4 7 8}
+do_test trigger1-6.8 {
+  db close
+  sqlite3 db test.db
+  execsql {SELECT * FROM t2}
+} {3 4 7 8}
+
+integrity_check trigger1-7.1
+
+# Check to make sure the name of a trigger can be quoted so that keywords
+# can be used as trigger names.  Ticket #468
+#
+do_test trigger1-8.1 {
+  execsql {
+    CREATE TRIGGER 'trigger' AFTER INSERT ON t2 BEGIN SELECT 1; END;
+    SELECT name FROM sqlite_master WHERE type='trigger';
+  }
+} {trigger}
+do_test trigger1-8.2 {
+  execsql {
+    DROP TRIGGER 'trigger';
+    SELECT name FROM sqlite_master WHERE type='trigger';
+  }
+} {}
+do_test trigger1-8.3 {
+  execsql {
+    CREATE TRIGGER "trigger" AFTER INSERT ON t2 BEGIN SELECT 1; END;
+    SELECT name FROM sqlite_master WHERE type='trigger';
+  }
+} {trigger}
+do_test trigger1-8.4 {
+  execsql {
+    DROP TRIGGER "trigger";
+    SELECT name FROM sqlite_master WHERE type='trigger';
+  }
+} {}
+do_test trigger1-8.5 {
+  execsql {
+    CREATE TRIGGER [trigger] AFTER INSERT ON t2 BEGIN SELECT 1; END;
+    SELECT name FROM sqlite_master WHERE type='trigger';
+  }
+} {trigger}
+do_test trigger1-8.6 {
+  execsql {
+    DROP TRIGGER [trigger];
+    SELECT name FROM sqlite_master WHERE type='trigger';
+  }
+} {}
+
+ifcapable conflict {
+  # Make sure REPLACE works inside of triggers.
+  #
+  # There are two versions of trigger1-9.1 and trigger1-9.2. One that uses
+  # compound SELECT statements, and another that does not.
+  ifcapable compound {
+    do_test trigger1-9.1 {
+      execsql {
+        CREATE TABLE t3(a,b);
+        CREATE TABLE t4(x UNIQUE, b);
+        CREATE TRIGGER r34 AFTER INSERT ON t3 BEGIN
+          REPLACE INTO t4 VALUES(new.a,new.b);
+        END;
+        INSERT INTO t3 VALUES(1,2);
+        SELECT * FROM t3 UNION ALL SELECT 99, 99 UNION ALL SELECT * FROM t4;
+      }
+    } {1 2 99 99 1 2}
+    do_test trigger1-9.2 {
+      execsql {
+        INSERT INTO t3 VALUES(1,3);
+        SELECT * FROM t3 UNION ALL SELECT 99, 99 UNION ALL SELECT * FROM t4;
+      }
+    } {1 2 1 3 99 99 1 3}
+  } else {
+    do_test trigger1-9.1 {
+      execsql {
+        CREATE TABLE t3(a,b);
+        CREATE TABLE t4(x UNIQUE, b);
+        CREATE TRIGGER r34 AFTER INSERT ON t3 BEGIN
+          REPLACE INTO t4 VALUES(new.a,new.b);
+        END;
+        INSERT INTO t3 VALUES(1,2);
+        SELECT * FROM t3; SELECT 99, 99; SELECT * FROM t4;
+      }
+    } {1 2 99 99 1 2}
+    do_test trigger1-9.2 {
+      execsql {
+        INSERT INTO t3 VALUES(1,3);
+        SELECT * FROM t3; SELECT 99, 99; SELECT * FROM t4;
+      }
+    } {1 2 1 3 99 99 1 3}
+  }
+  execsql {
+    DROP TABLE t3;
+    DROP TABLE t4;
+  }
+}
+
+
+# Ticket #764. At one stage TEMP triggers would fail to re-install when the
+# schema was reloaded. The following tests ensure that TEMP triggers are
+# correctly re-installed.
+#
+# Also verify that references within trigger programs are resolved at
+# statement compile time, not trigger installation time. This means, for
+# example, that you can drop and re-create tables referenced by triggers. 
+ifcapable tempdb&&attach {
+  do_test trigger1-10.0 {
+    forcedelete test2.db
+    forcedelete test2.db-journal
+    execsql {
+      ATTACH 'test2.db' AS aux;
+    }
+  } {}
+  do_test trigger1-10.1 {
+    execsql {
+      CREATE TABLE main.t4(a, b, c);
+      CREATE TABLE temp.t4(a, b, c);
+      CREATE TABLE aux.t4(a, b, c);
+      CREATE TABLE insert_log(db, a, b, c);
+    }
+  } {}
+  do_test trigger1-10.2 {
+    execsql {
+      CREATE TEMP TRIGGER trig1 AFTER INSERT ON main.t4 BEGIN 
+        INSERT INTO insert_log VALUES('main', new.a, new.b, new.c);
+      END;
+      CREATE TEMP TRIGGER trig2 AFTER INSERT ON temp.t4 BEGIN 
+        INSERT INTO insert_log VALUES('temp', new.a, new.b, new.c);
+      END;
+      CREATE TEMP TRIGGER trig3 AFTER INSERT ON aux.t4 BEGIN 
+        INSERT INTO insert_log VALUES('aux', new.a, new.b, new.c);
+      END;
+    }
+  } {}
+  do_test trigger1-10.3 {
+    execsql {
+      INSERT INTO main.t4 VALUES(1, 2, 3);
+      INSERT INTO temp.t4 VALUES(4, 5, 6);
+      INSERT INTO aux.t4  VALUES(7, 8, 9);
+    }
+  } {}
+  do_test trigger1-10.4 {
+    execsql {
+      SELECT * FROM insert_log;
+    }
+  } {main 1 2 3 temp 4 5 6 aux 7 8 9}
+  do_test trigger1-10.5 {
+    execsql {
+      BEGIN;
+      INSERT INTO main.t4 VALUES(1, 2, 3);
+      INSERT INTO temp.t4 VALUES(4, 5, 6);
+      INSERT INTO aux.t4  VALUES(7, 8, 9);
+      ROLLBACK;
+    }
+  } {}
+  do_test trigger1-10.6 {
+    execsql {
+      SELECT * FROM insert_log;
+    }
+  } {main 1 2 3 temp 4 5 6 aux 7 8 9}
+  do_test trigger1-10.7 {
+    execsql {
+      DELETE FROM insert_log;
+      INSERT INTO main.t4 VALUES(11, 12, 13);
+      INSERT INTO temp.t4 VALUES(14, 15, 16);
+      INSERT INTO aux.t4  VALUES(17, 18, 19);
+    }
+  } {}
+  do_test trigger1-10.8 {
+    execsql {
+      SELECT * FROM insert_log;
+    }
+  } {main 11 12 13 temp 14 15 16 aux 17 18 19}
+  do_test trigger1-10.9 {
+  # Drop and re-create the insert_log table in a different database. Note
+  # that we can change the column names because the trigger programs don't
+  # use them explicitly.
+    execsql {
+      DROP TABLE insert_log;
+      CREATE TABLE aux.insert_log(db, d, e, f);
+    }
+  } {}
+  do_test trigger1-10.10 {
+    execsql {
+      INSERT INTO main.t4 VALUES(21, 22, 23);
+      INSERT INTO temp.t4 VALUES(24, 25, 26);
+      INSERT INTO aux.t4  VALUES(27, 28, 29);
+    }
+  } {}
+  do_test trigger1-10.11 {
+    execsql {
+      SELECT * FROM insert_log;
+    }
+  } {main 21 22 23 temp 24 25 26 aux 27 28 29}
+}
+
+do_test trigger1-11.1 {
+  catchsql {SELECT raise(abort,'message');}
+} {1 {RAISE() may only be used within a trigger-program}}
+
+do_test trigger1-15.1 {
+  execsql {
+    CREATE TABLE tA(a INTEGER PRIMARY KEY, b, c);
+    CREATE TRIGGER tA_trigger BEFORE UPDATE ON "tA" BEGIN SELECT 1; END;
+    INSERT INTO tA VALUES(1, 2, 3);
+  }
+  catchsql { UPDATE tA SET a = 'abc' }
+} {1 {datatype mismatch}}
+do_test trigger1-15.2 {
+  catchsql { INSERT INTO tA VALUES('abc', 2, 3) }
+} {1 {datatype mismatch}}
+
+# Ticket #3947:  Do not allow qualified table names on INSERT, UPDATE, and
+# DELETE statements within triggers.  Actually, this has never been allowed
+# by the grammar.  But the error message is confusing: one simply gets a
+# "syntax error".  That has now been changed to give a full error message.
+#
+do_test trigger1-16.1 {
+  db eval {
+    CREATE TABLE t16(a,b,c);
+    CREATE INDEX t16a ON t16(a);
+    CREATE INDEX t16b ON t16(b);
+  }
+  catchsql {
+    CREATE TRIGGER main.t16err1 AFTER INSERT ON tA BEGIN
+      INSERT INTO main.t16 VALUES(1,2,3);
+    END;
+  }
+} {1 {qualified table names are not allowed on INSERT, UPDATE, and DELETE statements within triggers}}
+do_test trigger1-16.2 {
+  catchsql {
+    CREATE TRIGGER main.t16err2 AFTER INSERT ON tA BEGIN
+      UPDATE main.t16 SET rowid=rowid+1;
+    END;
+  }
+} {1 {qualified table names are not allowed on INSERT, UPDATE, and DELETE statements within triggers}}
+do_test trigger1-16.3 {
+  catchsql {
+    CREATE TRIGGER main.t16err3 AFTER INSERT ON tA BEGIN
+      DELETE FROM main.t16;
+    END;
+  }
+} {1 {qualified table names are not allowed on INSERT, UPDATE, and DELETE statements within triggers}}
+do_test trigger1-16.4 {
+  catchsql {
+    CREATE TRIGGER main.t16err4 AFTER INSERT ON tA BEGIN
+      UPDATE t16 NOT INDEXED SET rowid=rowid+1;
+    END;
+  }
+} {1 {the NOT INDEXED clause is not allowed on UPDATE or DELETE statements within triggers}}
+do_test trigger1-16.5 {
+  catchsql {
+    CREATE TRIGGER main.t16err5 AFTER INSERT ON tA BEGIN
+      UPDATE t16 INDEXED BY t16a SET rowid=rowid+1 WHERE a=1;
+    END;
+  }
+} {1 {the INDEXED BY clause is not allowed on UPDATE or DELETE statements within triggers}}
+do_test trigger1-16.6 {
+  catchsql {
+    CREATE TRIGGER main.t16err6 AFTER INSERT ON tA BEGIN
+      DELETE FROM t16 NOT INDEXED WHERE a=123;
+    END;
+  }
+} {1 {the NOT INDEXED clause is not allowed on UPDATE or DELETE statements within triggers}}
+do_test trigger1-16.7 {
+  catchsql {
+    CREATE TRIGGER main.t16err7 AFTER INSERT ON tA BEGIN
+      DELETE FROM t16 INDEXED BY t16a WHERE a=123;
+    END;
+  }
+} {1 {the INDEXED BY clause is not allowed on UPDATE or DELETE statements within triggers}}
+
+#-------------------------------------------------------------------------
+# Test that bug [34cd55d68e0e6e7c] has been fixed.
+#
+do_execsql_test trigger1-17.0 {
+  CREATE TABLE t17a(ii INT);
+  CREATE TABLE t17b(tt TEXT PRIMARY KEY, ss);
+  CREATE TRIGGER t17a_ai AFTER INSERT ON t17a BEGIN
+    INSERT INTO t17b(tt) VALUES(new.ii);
+  END;
+  CREATE TRIGGER t17b_ai AFTER INSERT ON t17b BEGIN
+    UPDATE t17b SET ss = 4;
+  END;
+  INSERT INTO t17a(ii) VALUES('1');
+  PRAGMA integrity_check;
+} {ok}
+
+# 2018-04-26
+# When a BEFORE UPDATE trigger changes a column value in a row being
+# updated, and that column value is used by the UPDATE to change other
+# column, the value used to compute the update is from before the trigger.
+# In the example that follows, the value of "b" in "c=b" is 2 (the value
+# prior to running the BEFORE UPDATE trigger) not 1000.
+#
+do_execsql_test trigger1-18.0 {
+  CREATE TABLE t18(a PRIMARY KEY,b,c);
+  INSERT INTO t18(a,b,c) VALUES(1,2,3);
+  CREATE TRIGGER t18r1 BEFORE UPDATE ON t18 BEGIN
+    UPDATE t18 SET b=1000 WHERE a=old.a;
+  END;
+  UPDATE t18 SET c=b WHERE a=1;
+  SELECT * FROM t18;
+} {1 1000 2}  ;# Not: 1 1000 1000 
+do_execsql_test trigger1-18.1 {
+  DELETE FROM t18;
+  INSERT INTO t18(a,b,c) VALUES(1,2,3);
+  UPDATE t18 SET c=b, b=b+1 WHERE a=1;
+  SELECT * FROM t18;
+} {1 3 2}     ;# Not: 1 1001 1000
+
+# 2018-04-26 ticket [https://www.sqlite.org/src/tktview/d85fffd6ffe856092e]
+# VDBE Program uses an expired value.
+#
+do_execsql_test trigger1-19.0 {
+  CREATE TABLE t19(a INT PRIMARY KEY, b, c)WITHOUT ROWID;
+  INSERT INTO t19(a,b,c) VALUES(1,2,3);
+  CREATE TRIGGER t19r3 BEFORE UPDATE ON t19 BEGIN SELECT new.b; END;
+  UPDATE t19 SET c=b WHERE a=1;
+  SELECT * FROM t19;
+} {1 2 2}
+do_execsql_test trigger1-19.1 {
+  DELETE FROM t19;
+  INSERT INTO t19(a,b,c) VALUES(1,2,3);
+  UPDATE t19 SET c=CASE WHEN b=2 THEN b ELSE b+99 END WHERE a=1;
+  SELECT * FROM t19;
+} {1 2 2}
+
+# 2019-08-26 Chromium sqlite3_fts3_lpm_fuzzer find.
+#
+db close
+sqlite3 db :memory:
+do_execsql_test trigger1-20.1 {
+  CREATE TABLE t20_1(x);
+  ATTACH ':memory:' AS aux;
+  CREATE TABLE aux.t20_2(y);
+  CREATE TABLE aux.t20_3(z);
+  CREATE TEMP TRIGGER r20_3 AFTER INSERT ON t20_2 BEGIN UPDATE t20_3 SET z=z+1; END;
+  DETACH aux;
+  DROP TRIGGER r20_3;
+} {}
+
+# 2019-10-24 ticket 50c09fc2cf0d91ce
+#
+db close
+sqlite3 db :memory:
+do_execsql_test trigger1-21.1 {
+  PRAGMA recursive_triggers = true;
+  CREATE TABLE t0(a, b, c UNIQUE);
+  CREATE UNIQUE INDEX i0 ON t0(b) WHERE a;
+  CREATE TRIGGER tr0 AFTER DELETE ON t0 BEGIN
+    DELETE FROM t0;
+  END;
+  INSERT INTO t0(a,b,c) VALUES(0,0,9),(1,1,1);
+  REPLACE INTO t0(a,b,c) VALUES(2,0,9);
+  SELECT * FROM t0;
+} {2 0 9}
+
+# 2020-01-04 From Yongheng
+# The test case below caused problems for the register validity
+# tracking logic.  There was no bug in the release build.  The
+# only problem was a false-positive in the register validity
+# tracking.
+#
+reset_db
+do_execsql_test trigger1-22.10 {
+  CREATE TABLE t1(
+    a INTEGER PRIMARY KEY,
+    b DOUBLE
+  );
+  CREATE TRIGGER x AFTER UPDATE ON t1 BEGIN
+   SELECT sum(b)OVER(ORDER BY (SELECT b FROM t1 AS x 
+                               WHERE b IN (t1.a,127,t1.b)
+                               GROUP BY b))
+     FROM t1
+     GROUP BY a;
+  END;
+  CREATE TEMP TRIGGER x BEFORE INSERT ON t1 BEGIN
+    UPDATE t1
+       SET b=randomblob(10)
+     WHERE b >= 'E'
+       AND a < (SELECT a FROM t1 WHERE a<22 GROUP BY b);
+  END;
+  INSERT INTO t1(b) VALUES('Y'),('X'),('Z');
+  SELECT a, CASE WHEN typeof(b)='text' THEN quote(b) ELSE '<blob>' END, '|' FROM t1;
+} {1 <blob> | 2 'X' | 3 'Z' |}
+
+# 2022-03-06 https://sqlite.org/forum/forumpost/2024e94071
+# Harmless assertion fault following a syntax error.
+#
+reset_db
+do_catchsql_test trigger1-23.1 {
+  CREATE TABLE t1(a INT);
+  CREATE TRIGGER r1 AFTER INSERT ON t1 BEGIN
+    INSERT INTO t1 SELECT e_master LIMIT 1,#1;
+  END;
+} {1 {near "#1": syntax error}}
+
+# 2024-05-08 Allow arbitrary expressions as the 2nd argument to RAISE().
+#
+do_catchsql_test trigger1-24.1 {
+  CREATE TRIGGER r1 AFTER INSERT ON t1 BEGIN
+    SELECT raise(abort,format('attempt to insert %d where is not a power of 2',new.a))
+     WHERE (new.a & (new.a-1))!=0;
+  END;
+  INSERT INTO t1 VALUES(0),(1),(2),(4),(8),(65536);
+} {0 {}}
+do_catchsql_test trigger1-24.2 {
+  INSERT INTO t1 VALUES(9876);
+} {1 {attempt to insert 9876 where is not a power of 2}}
+
+finish_test
diff --git a/test/trigger2.test b/test/trigger2.test
new file mode 100644
index 0000000000000000000000000000000000000000..70d59f3a0b556baa20e27d5401580eae2a6f5268
--- /dev/null
+++ b/test/trigger2.test
@@ -0,0 +1,792 @@
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Regression testing of FOR EACH ROW table triggers
+#
+# 1. Trigger execution order tests. 
+# These tests ensure that BEFORE and AFTER triggers are fired at the correct
+# times relative to each other and the triggering statement. 
+#
+# trigger2-1.1.*: ON UPDATE trigger execution model.
+# trigger2-1.2.*: DELETE trigger execution model.
+# trigger2-1.3.*: INSERT trigger execution model.
+#
+# 2. Trigger program execution tests.
+# These tests ensure that trigger programs execute correctly (ie. that a
+# trigger program can correctly execute INSERT, UPDATE, DELETE * SELECT
+# statements, and combinations thereof).
+#
+# 3. Selective trigger execution 
+# This tests that conditional triggers (ie. UPDATE OF triggers and triggers
+# with WHEN clauses) are fired only fired when they are supposed to be.
+#
+# trigger2-3.1: UPDATE OF triggers
+# trigger2-3.2: WHEN clause
+#
+# 4. Cascaded trigger execution 
+# Tests that trigger-programs may cause other triggers to fire. Also that a 
+# trigger-program is never executed recursively.
+# 
+# trigger2-4.1: Trivial cascading trigger
+# trigger2-4.2: Trivial recursive trigger handling 
+#
+# 5. Count changes behaviour.
+# Verify that rows altered by triggers are not included in the return value
+# of the "count changes" interface.
+#
+# 6. ON CONFLICT clause handling
+# trigger2-6.1[a-f]: INSERT statements
+# trigger2-6.2[a-f]: UPDATE statements
+#
+# 7. & 8. Triggers on views fire correctly.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix trigger2
+ifcapable {!trigger} {
+  finish_test
+  return
+}
+
+# The tests in this file were written before SQLite supported recursive
+# trigger invocation, and some tests depend on that to pass. So disable
+# recursive triggers for this file.
+catchsql { pragma recursive_triggers = off } 
+
+# 1.
+ifcapable subquery {
+  set ii 0
+  set tbl_definitions [list \
+  	{CREATE TABLE tbl (a, b);}                                      \
+  	{CREATE TABLE tbl (a INTEGER PRIMARY KEY, b);}                  \
+        {CREATE TABLE tbl (a, b PRIMARY KEY);}                          \
+  	{CREATE TABLE tbl (a, b); CREATE INDEX tbl_idx ON tbl(b);}      \
+  ]
+  ifcapable tempdb {
+    lappend tbl_definitions \
+        {CREATE TEMP TABLE tbl (a, b); CREATE INDEX tbl_idx ON tbl(b);} 
+    lappend tbl_definitions {CREATE TEMP TABLE tbl (a, b);}
+    lappend tbl_definitions \
+        {CREATE TEMPORARY TABLE tbl (a INTEGER PRIMARY KEY, b);}
+  }
+  foreach tbl_defn $tbl_definitions {
+    incr ii
+    catchsql { DROP INDEX tbl_idx; }
+    catchsql {
+      DROP TABLE rlog;
+      DROP TABLE clog;
+      DROP TABLE tbl;
+      DROP TABLE other_tbl;
+    }
+  
+    execsql $tbl_defn
+  
+    execsql {
+      INSERT INTO tbl VALUES(1, 2);
+      INSERT INTO tbl VALUES(3, 4);
+  
+      CREATE TABLE rlog (idx, old_a, old_b, db_sum_a, db_sum_b, new_a, new_b);
+      CREATE TABLE clog (idx, old_a, old_b, db_sum_a, db_sum_b, new_a, new_b);
+  
+      CREATE TRIGGER before_update_row BEFORE UPDATE ON tbl FOR EACH ROW 
+        BEGIN
+        INSERT INTO rlog VALUES ( (SELECT coalesce(max(idx),0) + 1 FROM rlog), 
+  	  old.a, old.b, 
+  	  (SELECT coalesce(sum(a),0) FROM tbl),
+          (SELECT coalesce(sum(b),0) FROM tbl), 
+  	  new.a, new.b);
+      END;
+  
+      CREATE TRIGGER after_update_row AFTER UPDATE ON tbl FOR EACH ROW 
+        BEGIN
+        INSERT INTO rlog VALUES ( (SELECT coalesce(max(idx),0) + 1 FROM rlog), 
+  	  old.a, old.b, 
+  	  (SELECT coalesce(sum(a),0) FROM tbl),
+          (SELECT coalesce(sum(b),0) FROM tbl), 
+  	  new.a, new.b);
+      END;
+  
+      CREATE TRIGGER conditional_update_row AFTER UPDATE ON tbl FOR EACH ROW
+        WHEN old.a = 1
+        BEGIN
+        INSERT INTO clog VALUES ( (SELECT coalesce(max(idx),0) + 1 FROM clog), 
+  	  old.a, old.b, 
+  	  (SELECT coalesce(sum(a),0) FROM tbl),
+          (SELECT coalesce(sum(b),0) FROM tbl), 
+  	  new.a, new.b);
+      END;
+    }
+  
+    do_test trigger2-1.$ii.1 {
+      set r {}
+      foreach v [execsql { 
+        UPDATE tbl SET a = a * 10, b = b * 10;
+        SELECT * FROM rlog ORDER BY idx;
+        SELECT * FROM clog ORDER BY idx;
+      }] {
+        lappend r [expr {int($v)}]
+      }
+      set r
+    } [list 1 1 2  4  6 10 20 \
+            2 1 2 13 24 10 20 \
+  	    3 3 4 13 24 30 40 \
+  	    4 3 4 40 60 30 40 \
+            1 1 2 13 24 10 20 ]
+  
+    execsql {
+      DELETE FROM rlog;
+      DELETE FROM tbl;
+      INSERT INTO tbl VALUES (100, 100);
+      INSERT INTO tbl VALUES (300, 200);
+      CREATE TRIGGER delete_before_row BEFORE DELETE ON tbl FOR EACH ROW
+        BEGIN
+        INSERT INTO rlog VALUES ( (SELECT coalesce(max(idx),0) + 1 FROM rlog), 
+  	  old.a, old.b, 
+  	  (SELECT coalesce(sum(a),0) FROM tbl),
+          (SELECT coalesce(sum(b),0) FROM tbl), 
+  	  0, 0);
+      END;
+  
+      CREATE TRIGGER delete_after_row AFTER DELETE ON tbl FOR EACH ROW
+        BEGIN
+        INSERT INTO rlog VALUES ( (SELECT coalesce(max(idx),0) + 1 FROM rlog), 
+  	  old.a, old.b, 
+  	  (SELECT coalesce(sum(a),0) FROM tbl),
+          (SELECT coalesce(sum(b),0) FROM tbl), 
+  	  0, 0);
+      END;
+    }
+    do_test trigger2-1.$ii.2 {
+      set r {}
+      foreach v [execsql {
+        DELETE FROM tbl;
+        SELECT * FROM rlog;
+      }] {
+        lappend r [expr {int($v)}]
+      }
+      set r
+    } [list 1 100 100 400 300 0 0 \
+            2 100 100 300 200 0 0 \
+            3 300 200 300 200 0 0 \
+            4 300 200 0 0 0 0 ]
+  
+    execsql {
+      DELETE FROM rlog;
+      CREATE TRIGGER insert_before_row BEFORE INSERT ON tbl FOR EACH ROW
+        BEGIN
+        INSERT INTO rlog VALUES ( (SELECT coalesce(max(idx),0) + 1 FROM rlog), 
+  	  0, 0,
+  	  (SELECT coalesce(sum(a),0) FROM tbl),
+          (SELECT coalesce(sum(b),0) FROM tbl), 
+  	  new.a, new.b);
+      END;
+  
+      CREATE TRIGGER insert_after_row AFTER INSERT ON tbl FOR EACH ROW
+        BEGIN
+        INSERT INTO rlog VALUES ( (SELECT coalesce(max(idx),0) + 1 FROM rlog), 
+  	  0, 0,
+  	  (SELECT coalesce(sum(a),0) FROM tbl),
+          (SELECT coalesce(sum(b),0) FROM tbl), 
+  	  new.a, new.b);
+      END;
+    }
+    do_test trigger2-1.$ii.3 {
+      execsql {
+  
+        CREATE TABLE other_tbl(a, b);
+        INSERT INTO other_tbl VALUES(1, 2);
+        INSERT INTO other_tbl VALUES(3, 4);
+        -- INSERT INTO tbl SELECT * FROM other_tbl;
+        INSERT INTO tbl VALUES(5, 6);
+        DROP TABLE other_tbl;
+  
+        SELECT * FROM rlog;
+      }
+    } [list 1 0 0 0 0 5 6 \
+            2 0 0 5 6 5 6 ]
+  
+    integrity_check trigger2-1.$ii.4
+  }
+  catchsql {
+    DROP TABLE rlog;
+    DROP TABLE clog;
+    DROP TABLE tbl;
+    DROP TABLE other_tbl;
+  }
+}
+
+# 2.
+set ii 0
+foreach tr_program {
+  {UPDATE tbl SET b = old.b;}
+  {INSERT INTO log VALUES(new.c, 2, 3);}
+  {DELETE FROM log WHERE a = 1;}
+  {INSERT INTO tbl VALUES(500, new.b * 10, 700); 
+    UPDATE tbl SET c = old.c; 
+    DELETE FROM log;}
+  {INSERT INTO log select * from tbl;} 
+} {
+  foreach test_varset [ list \
+    {
+      set statement {UPDATE tbl SET c = 10 WHERE a = 1;} 
+      set prep      {INSERT INTO tbl VALUES(1, 2, 3);}
+      set newC 10
+      set newB 2
+      set newA 1
+      set oldA 1
+      set oldB 2
+      set oldC 3
+    } \
+    {
+      set statement {DELETE FROM tbl WHERE a = 1;}
+      set prep      {INSERT INTO tbl VALUES(1, 2, 3);}
+      set oldA 1
+      set oldB 2
+      set oldC 3
+    } \
+    {
+      set statement {INSERT INTO tbl VALUES(1, 2, 3);}
+      set newA 1
+      set newB 2
+      set newC 3
+    }
+  ] \
+  {
+    set statement {}
+    set prep {}
+    set newA {''}
+    set newB {''}
+    set newC {''}
+    set oldA {''}
+    set oldB {''}
+    set oldC {''}
+
+    incr ii
+
+    eval $test_varset
+
+    set statement_type [string range $statement 0 5]
+    set tr_program_fixed $tr_program
+    if {$statement_type == "DELETE"} {
+      regsub -all new\.a $tr_program_fixed {''} tr_program_fixed 
+      regsub -all new\.b $tr_program_fixed {''} tr_program_fixed 
+      regsub -all new\.c $tr_program_fixed {''} tr_program_fixed 
+    }
+    if {$statement_type == "INSERT"} {
+      regsub -all old\.a $tr_program_fixed {''} tr_program_fixed 
+      regsub -all old\.b $tr_program_fixed {''} tr_program_fixed 
+      regsub -all old\.c $tr_program_fixed {''} tr_program_fixed 
+    }
+
+
+    set tr_program_cooked $tr_program
+    regsub -all new\.a $tr_program_cooked $newA tr_program_cooked 
+    regsub -all new\.b $tr_program_cooked $newB tr_program_cooked 
+    regsub -all new\.c $tr_program_cooked $newC tr_program_cooked 
+    regsub -all old\.a $tr_program_cooked $oldA tr_program_cooked 
+    regsub -all old\.b $tr_program_cooked $oldB tr_program_cooked 
+    regsub -all old\.c $tr_program_cooked $oldC tr_program_cooked 
+
+    catchsql {
+      DROP TABLE tbl;
+      DROP TABLE log;
+    }
+
+    execsql {
+      CREATE TABLE tbl(a PRIMARY KEY, b, c);
+      CREATE TABLE log(a, b, c);
+    }
+
+    set query {SELECT * FROM tbl; SELECT * FROM log;}
+    set prep "$prep; INSERT INTO log VALUES(1, 2, 3);\
+             INSERT INTO log VALUES(10, 20, 30);"
+
+# Check execution of BEFORE programs:
+
+    set before_data [ execsql "$prep $tr_program_cooked $statement $query" ]
+
+    execsql "DELETE FROM tbl; DELETE FROM log; $prep";
+    execsql "CREATE TRIGGER the_trigger BEFORE [string range $statement 0 6]\
+             ON tbl BEGIN $tr_program_fixed END;"
+
+    do_test trigger2-2.$ii-before "execsql {$statement $query}" $before_data
+
+    execsql "DROP TRIGGER the_trigger;"
+    execsql "DELETE FROM tbl; DELETE FROM log;"
+
+# Check execution of AFTER programs
+    set after_data [ execsql "$prep $statement $tr_program_cooked $query" ]
+
+    execsql "DELETE FROM tbl; DELETE FROM log; $prep";
+    execsql "CREATE TRIGGER the_trigger AFTER [string range $statement 0 6]\
+             ON tbl BEGIN $tr_program_fixed END;"
+
+    do_test trigger2-2.$ii-after "execsql {$statement $query}" $after_data
+    execsql "DROP TRIGGER the_trigger;"
+
+    integrity_check trigger2-2.$ii-integrity
+  }
+}
+catchsql {
+  DROP TABLE tbl;
+  DROP TABLE log;
+}
+
+# 3.
+
+# trigger2-3.1: UPDATE OF triggers
+execsql {
+  CREATE TABLE tbl (a, b, c, d);
+  CREATE TABLE log (a);
+  INSERT INTO log VALUES (0);
+  INSERT INTO tbl VALUES (0, 0, 0, 0);
+  INSERT INTO tbl VALUES (1, 0, 0, 0);
+  CREATE TRIGGER tbl_after_update_cd BEFORE UPDATE OF c, d ON tbl
+    BEGIN
+      UPDATE log SET a = a + 1;
+    END;
+}
+do_test trigger2-3.1 {
+  execsql {
+    UPDATE tbl SET b = 1, c = 10; -- 2
+    UPDATE tbl SET b = 10; -- 0
+    UPDATE tbl SET d = 4 WHERE a = 0; --1
+    UPDATE tbl SET a = 4, b = 10; --0
+    SELECT * FROM log;
+  }
+} {3}
+execsql {
+  DROP TABLE tbl;
+  DROP TABLE log;
+}
+
+# trigger2-3.2: WHEN clause
+set when_triggers [list {t1 BEFORE INSERT ON tbl WHEN new.a > 20}]
+ifcapable subquery {
+  lappend when_triggers \
+      {t2 BEFORE INSERT ON tbl WHEN (SELECT count(*) FROM tbl) = 0}
+}
+
+execsql {
+  CREATE TABLE tbl (a, b, c, d);
+  CREATE TABLE log (a);
+  INSERT INTO log VALUES (0);
+}
+
+foreach trig $when_triggers {
+  execsql "CREATE TRIGGER $trig BEGIN UPDATE log set a = a + 1; END;"
+}
+
+ifcapable subquery {
+  set t232 {1 0 1}
+} else {
+  set t232 {0 0 1}
+}
+do_test trigger2-3.2 {
+  execsql { 
+
+    INSERT INTO tbl VALUES(0, 0, 0, 0);     -- 1 (ifcapable subquery)
+    SELECT * FROM log;
+    UPDATE log SET a = 0;
+
+    INSERT INTO tbl VALUES(0, 0, 0, 0);     -- 0
+    SELECT * FROM log;
+    UPDATE log SET a = 0;
+
+    INSERT INTO tbl VALUES(200, 0, 0, 0);     -- 1
+    SELECT * FROM log;
+    UPDATE log SET a = 0;
+  }
+} $t232
+execsql {
+  DROP TABLE tbl;
+  DROP TABLE log;
+}
+integrity_check trigger2-3.3
+
+# Simple cascaded trigger
+execsql {
+  CREATE TABLE tblA(a, b);
+  CREATE TABLE tblB(a, b);
+  CREATE TABLE tblC(a, b);
+
+  CREATE TRIGGER tr1 BEFORE INSERT ON tblA BEGIN
+    INSERT INTO tblB values(new.a, new.b);
+  END;
+
+  CREATE TRIGGER tr2 BEFORE INSERT ON tblB BEGIN
+    INSERT INTO tblC values(new.a, new.b);
+  END;
+}
+do_test trigger2-4.1 {
+  execsql {
+    INSERT INTO tblA values(1, 2);
+    SELECT * FROM tblA;
+    SELECT * FROM tblB;
+    SELECT * FROM tblC;
+  }
+} {1 2 1 2 1 2}
+execsql {
+  DROP TABLE tblA;
+  DROP TABLE tblB;
+  DROP TABLE tblC;
+}
+
+# Simple recursive trigger
+execsql {
+  CREATE TABLE tbl(a, b, c);
+  CREATE TRIGGER tbl_trig BEFORE INSERT ON tbl 
+    BEGIN
+      INSERT INTO tbl VALUES (new.a, new.b, new.c);
+    END;
+}
+do_test trigger2-4.2 {
+  execsql {
+    INSERT INTO tbl VALUES (1, 2, 3);
+    select * from tbl;
+  }
+} {1 2 3 1 2 3}
+execsql {
+  DROP TABLE tbl;
+}
+
+# 5.
+execsql {
+  CREATE TABLE tbl(a, b, c);
+  CREATE TRIGGER tbl_trig BEFORE INSERT ON tbl 
+    BEGIN
+      INSERT INTO tbl VALUES (1, 2, 3);
+      INSERT INTO tbl VALUES (2, 2, 3);
+      UPDATE tbl set b = 10 WHERE a = 1;
+      DELETE FROM tbl WHERE a = 1;
+      DELETE FROM tbl;
+    END;
+}
+do_test trigger2-5 {
+  execsql {
+    INSERT INTO tbl VALUES(100, 200, 300);
+  }
+  db changes
+} {1}
+execsql {
+  DROP TABLE tbl;
+}
+
+ifcapable conflict {
+  # Handling of ON CONFLICT by INSERT statements inside triggers
+  execsql {
+    CREATE TABLE tbl (a primary key, b, c);
+    CREATE TRIGGER ai_tbl AFTER INSERT ON tbl BEGIN
+      INSERT OR IGNORE INTO tbl values (new.a, 0, 0);
+    END;
+  }
+  do_test trigger2-6.1a {
+    execsql {
+      BEGIN;
+      INSERT INTO tbl values (1, 2, 3);
+      SELECT * from tbl;
+    }
+  } {1 2 3}
+  do_test trigger2-6.1b {
+    catchsql {
+      INSERT OR ABORT INTO tbl values (2, 2, 3);
+    }
+  } {1 {UNIQUE constraint failed: tbl.a}}
+  do_test trigger2-6.1c {
+    execsql {
+      SELECT * from tbl;
+    }
+  } {1 2 3}
+  do_test trigger2-6.1d {
+    catchsql {
+      INSERT OR FAIL INTO tbl values (2, 2, 3);
+    }
+  } {1 {UNIQUE constraint failed: tbl.a}}
+  do_test trigger2-6.1e {
+    execsql {
+      SELECT * from tbl;
+    }
+  } {1 2 3 2 2 3}
+  do_test trigger2-6.1f {
+    execsql {
+      INSERT OR REPLACE INTO tbl values (2, 2, 3);
+      SELECT * from tbl;
+    }
+  } {1 2 3 2 0 0}
+  do_test trigger2-6.1g {
+    catchsql {
+      INSERT OR ROLLBACK INTO tbl values (3, 2, 3);
+    }
+  } {1 {UNIQUE constraint failed: tbl.a}}
+  do_test trigger2-6.1h {
+    execsql {
+      SELECT * from tbl;
+    }
+  } {}
+  execsql {DELETE FROM tbl}
+  
+  
+  # Handling of ON CONFLICT by UPDATE statements inside triggers
+  execsql {
+    INSERT INTO tbl values (4, 2, 3);
+    INSERT INTO tbl values (6, 3, 4);
+    CREATE TRIGGER au_tbl AFTER UPDATE ON tbl BEGIN
+      UPDATE OR IGNORE tbl SET a = new.a, c = 10;
+    END;
+  }
+  do_test trigger2-6.2a {
+    execsql {
+      BEGIN;
+      UPDATE tbl SET a = 1 WHERE a = 4;
+      SELECT * from tbl;
+    }
+  } {1 2 10 6 3 4}
+  do_test trigger2-6.2b {
+    catchsql {
+      UPDATE OR ABORT tbl SET a = 4 WHERE a = 1;
+    }
+  } {1 {UNIQUE constraint failed: tbl.a}}
+  do_test trigger2-6.2c {
+    execsql {
+      SELECT * from tbl;
+    }
+  } {1 2 10 6 3 4}
+  do_test trigger2-6.2d {
+    catchsql {
+      UPDATE OR FAIL tbl SET a = 4 WHERE a = 1;
+    }
+  } {1 {UNIQUE constraint failed: tbl.a}}
+  do_test trigger2-6.2e {
+    execsql {
+      SELECT * from tbl;
+    }
+  } {4 2 10 6 3 4}
+  do_test trigger2-6.2f.1 {
+    execsql {
+      UPDATE OR REPLACE tbl SET a = 1 WHERE a = 4;
+      SELECT * from tbl;
+    }
+  } {1 3 10}
+  do_test trigger2-6.2f.2 {
+    execsql {
+      INSERT INTO tbl VALUES (2, 3, 4);
+      SELECT * FROM tbl;
+    }
+  } {1 3 10 2 3 4}
+  do_test trigger2-6.2g {
+    catchsql {
+      UPDATE OR ROLLBACK tbl SET a = 4 WHERE a = 1;
+    }
+  } {1 {UNIQUE constraint failed: tbl.a}}
+  do_test trigger2-6.2h {
+    execsql {
+      SELECT * from tbl;
+    }
+  } {4 2 3 6 3 4}
+  execsql {
+    DROP TABLE tbl;
+  }
+} ; # ifcapable conflict
+
+# 7. Triggers on views
+ifcapable view {
+
+do_test trigger2-7.1 {
+  execsql {
+  CREATE TABLE ab(a, b);
+  CREATE TABLE cd(c, d);
+  INSERT INTO ab VALUES (1, 2);
+  INSERT INTO ab VALUES (0, 0);
+  INSERT INTO cd VALUES (3, 4);
+
+  CREATE TABLE tlog(ii INTEGER PRIMARY KEY, 
+      olda, oldb, oldc, oldd, newa, newb, newc, newd);
+
+  CREATE VIEW abcd AS SELECT a, b, c, d FROM ab, cd;
+
+  CREATE TRIGGER before_update INSTEAD OF UPDATE ON abcd BEGIN
+    INSERT INTO tlog VALUES(NULL, 
+	old.a, old.b, old.c, old.d, new.a, new.b, new.c, new.d);
+  END;
+  CREATE TRIGGER after_update INSTEAD OF UPDATE ON abcd BEGIN
+    INSERT INTO tlog VALUES(NULL, 
+	old.a, old.b, old.c, old.d, new.a, new.b, new.c, new.d);
+  END;
+
+  CREATE TRIGGER before_delete INSTEAD OF DELETE ON abcd BEGIN
+    INSERT INTO tlog VALUES(NULL, 
+	old.a, old.b, old.c, old.d, 0, 0, 0, 0);
+  END;
+  CREATE TRIGGER after_delete INSTEAD OF DELETE ON abcd BEGIN
+    INSERT INTO tlog VALUES(NULL, 
+	old.a, old.b, old.c, old.d, 0, 0, 0, 0);
+  END;
+
+  CREATE TRIGGER before_insert INSTEAD OF INSERT ON abcd BEGIN
+    INSERT INTO tlog VALUES(NULL, 
+	0, 0, 0, 0, new.a, new.b, new.c, new.d);
+  END;
+   CREATE TRIGGER after_insert INSTEAD OF INSERT ON abcd BEGIN
+    INSERT INTO tlog VALUES(NULL, 
+	0, 0, 0, 0, new.a, new.b, new.c, new.d);
+   END;
+  }
+} {};
+
+do_test trigger2-7.2 {
+  execsql {
+    UPDATE abcd SET a = 100, b = 5*5 WHERE a = 1;
+    DELETE FROM abcd WHERE a = 1;
+    INSERT INTO abcd VALUES(10, 20, 30, 40);
+    SELECT * FROM tlog;
+  }
+} [ list 1 1 2 3 4 100 25 3 4 \
+         2 1 2 3 4 100 25 3 4 \
+	 3 1 2 3 4 0 0 0 0 \
+	 4 1 2 3 4 0 0 0 0 \
+	 5 0 0 0 0 10 20 30 40 \
+	 6 0 0 0 0 10 20 30 40 ]
+
+do_test trigger2-7.3 {
+  execsql {
+    DELETE FROM tlog;
+    INSERT INTO abcd VALUES(10, 20, 30, 40);
+    UPDATE abcd SET a = 100, b = 5*5 WHERE a = 1;
+    DELETE FROM abcd WHERE a = 1;
+    SELECT * FROM tlog;
+  }
+} [ list \
+   1 0 0 0 0 10 20 30 40 \
+   2 0 0 0 0 10 20 30 40 \
+   3 1 2 3 4 100 25 3 4 \
+   4 1 2 3 4 100 25 3 4 \
+   5 1 2 3 4 0 0 0 0 \
+   6 1 2 3 4 0 0 0 0 \
+]
+do_test trigger2-7.4 {
+  execsql {
+    DELETE FROM tlog;
+    DELETE FROM abcd WHERE a = 1;
+    INSERT INTO abcd VALUES(10, 20, 30, 40);
+    UPDATE abcd SET a = 100, b = 5*5 WHERE a = 1;
+    SELECT * FROM tlog;
+  }
+} [ list \
+   1 1 2 3 4 0 0 0 0 \
+   2 1 2 3 4 0 0 0 0 \
+   3 0 0 0 0 10 20 30 40 \
+   4 0 0 0 0 10 20 30 40 \
+   5 1 2 3 4 100 25 3 4 \
+   6 1 2 3 4 100 25 3 4 \
+]
+
+do_test trigger2-8.1 {
+  execsql {
+    CREATE TABLE t1(a,b,c);
+    INSERT INTO t1 VALUES(1,2,3);
+    CREATE VIEW v1 AS
+      SELECT a+b AS x, b+c AS y, a+c AS z FROM t1;
+    SELECT * FROM v1;
+  }
+} {3 5 4}
+do_test trigger2-8.2 {
+  execsql {
+    CREATE TABLE v1log(a,b,c,d,e,f);
+    CREATE TRIGGER r1 INSTEAD OF DELETE ON v1 BEGIN
+      INSERT INTO v1log VALUES(OLD.x,NULL,OLD.y,NULL,OLD.z,NULL);
+    END;
+    DELETE FROM v1 WHERE x=1;
+    SELECT * FROM v1log;
+  }
+} {}
+do_test trigger2-8.3 {
+  execsql {
+    DELETE FROM v1 WHERE x=3;
+    SELECT * FROM v1log;
+  }
+} {3 {} 5 {} 4 {}}
+do_test trigger2-8.4 {
+  execsql {
+    INSERT INTO t1 VALUES(4,5,6);
+    DELETE FROM v1log;
+    DELETE FROM v1 WHERE y=11;
+    SELECT * FROM v1log;
+  }
+} {9 {} 11 {} 10 {}}
+do_test trigger2-8.5 {
+  execsql {
+    CREATE TRIGGER r2 INSTEAD OF INSERT ON v1 BEGIN
+      INSERT INTO v1log VALUES(NULL,NEW.x,NULL,NEW.y,NULL,NEW.z);
+    END;
+    DELETE FROM v1log;
+    INSERT INTO v1 VALUES(1,2,3);
+    SELECT * FROM v1log;
+  }
+} {{} 1 {} 2 {} 3}
+do_test trigger2-8.6 {
+  execsql {
+    CREATE TRIGGER r3 INSTEAD OF UPDATE ON v1 BEGIN
+      INSERT INTO v1log VALUES(OLD.x,NEW.x,OLD.y,NEW.y,OLD.z,NEW.z);
+    END;
+    DELETE FROM v1log;
+    UPDATE v1 SET x=x+100, y=y+200, z=z+300;
+    SELECT * FROM v1log;
+  }
+} {3 103 5 205 4 304 9 109 11 211 10 310}
+
+# At one point the following was causing a segfault.
+do_test trigger2-9.1 {
+  execsql {
+    CREATE TABLE t3(a TEXT, b TEXT);
+    CREATE VIEW v3 AS SELECT t3.a FROM t3;
+    CREATE TRIGGER trig1 INSTEAD OF DELETE ON v3 BEGIN
+      SELECT 1;
+    END;
+    DELETE FROM v3 WHERE a = 1;
+  }
+} {}
+
+integrity_check trigger2-9.99
+
+# 2019-11-02 Problem found by TH3, related to generated column support.
+db close
+sqlite3 db :memory:
+do_execsql_test trigger2-10.1 {
+  CREATE TABLE t1(a,b,c,d);
+  CREATE VIEW v2(a,b,c,d) AS SELECT * FROM t1;
+  CREATE TRIGGER v2ins INSTEAD OF INSERT ON v2 BEGIN
+    INSERT INTO t1(a,b,c,d) VALUES(new.a, new.b, new.c, new.d);
+  END;
+  INSERT INTO v2(a,d) VALUES(11,14);
+  SELECT * FROM t1;
+} {11 {} {} 14}
+ 
+} ;# ifcapable view
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 11.1 {
+  CREATE TABLE t1(a INT PRIMARY KEY, b, c REAL, d, e);
+  CREATE TABLE t2(a INT, b, c REAL, d, e, PRIMARY KEY(a,b)) WITHOUT ROWID;
+  CREATE UNIQUE INDEX t2c ON t2(c);
+  CREATE UNIQUE INDEX t2d ON t2(d);
+  CREATE UNIQUE INDEX t2e ON t2(e);
+}
+
+do_catchsql_test 11.2 {
+  CREATE TRIGGER r1 BEFORE INSERT ON t1 BEGIN
+    INSERT INTO t2(a,b,c,d,e) VALUES(91,NULL,93,94,?1)
+      ON CONFLICT(b,a) DO NOTHING
+      ON CONFLICT DO UPDATE SET b=?1;
+  END;
+} {1 {trigger cannot use variables}}
+
+
+finish_test
diff --git a/test/trigger3.test b/test/trigger3.test
new file mode 100644
index 0000000000000000000000000000000000000000..fe91b9dcf8e2a09fd13fbbe4e5d8516916770a8c
--- /dev/null
+++ b/test/trigger3.test
@@ -0,0 +1,200 @@
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file tests the RAISE() function.
+#
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable {!trigger} {
+  finish_test
+  return
+}
+
+# The tests in this file were written before SQLite supported recursive }
+# trigger invocation, and some tests depend on that to pass. So disable
+# recursive triggers for this file.
+catchsql { pragma recursive_triggers = off } 
+
+# Test that we can cause ROLLBACK, FAIL and ABORT correctly
+#
+catchsql { CREATE TABLE tbl(a, b ,c) }
+execsql {
+    CREATE TRIGGER before_tbl_insert BEFORE INSERT ON tbl BEGIN SELECT CASE 
+        WHEN (new.a = 4) THEN RAISE(IGNORE) END;
+    END;
+
+    CREATE TRIGGER after_tbl_insert AFTER INSERT ON tbl BEGIN SELECT CASE 
+        WHEN (new.a = 1) THEN RAISE(ABORT,    'Trigger abort') 
+        WHEN (new.a = 2) THEN RAISE(FAIL,     'Trigger fail') 
+        WHEN (new.a = 3) THEN RAISE(ROLLBACK, 'Trigger rollback') END;
+    END;
+}
+# ABORT
+do_test trigger3-1.1 {
+    catchsql {
+        BEGIN;
+        INSERT INTO tbl VALUES (5, 5, 6);
+        INSERT INTO tbl VALUES (1, 5, 6);
+    }
+} {1 {Trigger abort}}
+verify_ex_errcode trigger3-1.1b SQLITE_CONSTRAINT_TRIGGER
+do_test trigger3-1.2 {
+    execsql {
+        SELECT * FROM tbl;
+        ROLLBACK;
+    }
+} {5 5 6}
+do_test trigger3-1.3 {
+    execsql {SELECT * FROM tbl}
+} {}
+
+# FAIL
+do_test trigger3-2.1 {
+    catchsql {
+        BEGIN;
+        INSERT INTO tbl VALUES (5, 5, 6);
+        INSERT INTO tbl VALUES (2, 5, 6);
+    }
+} {1 {Trigger fail}}
+verify_ex_errcode trigger3-2.1b SQLITE_CONSTRAINT_TRIGGER
+do_test trigger3-2.2 {
+    execsql {
+        SELECT * FROM tbl;
+        ROLLBACK;
+    }
+} {5 5 6 2 5 6}
+# ROLLBACK
+do_test trigger3-3.1 {
+    catchsql {
+        BEGIN;
+        INSERT INTO tbl VALUES (5, 5, 6);
+        INSERT INTO tbl VALUES (3, 5, 6);
+    }
+} {1 {Trigger rollback}}
+verify_ex_errcode trigger3-3.1b SQLITE_CONSTRAINT_TRIGGER
+do_test trigger3-3.2 {
+    execsql {
+        SELECT * FROM tbl;
+    }
+} {}
+
+# Verify that a ROLLBACK trigger works like a FAIL trigger if
+# we are not within a transaction.  Ticket #3035.
+#
+do_test trigger3-3.3 {
+    catchsql {COMMIT}
+    catchsql {
+        INSERT INTO tbl VALUES (3, 9, 10);
+    }
+} {1 {Trigger rollback}}
+verify_ex_errcode trigger3-3.3b SQLITE_CONSTRAINT_TRIGGER
+do_test trigger3-3.4 {
+    execsql {SELECT * FROM tbl}
+} {}
+
+# IGNORE
+do_test trigger3-4.1 {
+    catchsql {
+        BEGIN;
+        INSERT INTO tbl VALUES (5, 5, 6);
+        INSERT INTO tbl VALUES (4, 5, 6);
+    }
+} {0 {}}
+do_test trigger3-4.2 {
+    execsql {
+        SELECT * FROM tbl;
+        ROLLBACK;
+    }
+} {5 5 6}
+
+# Check that we can also do RAISE(IGNORE) for UPDATE and DELETE
+execsql {DROP TABLE tbl;}
+execsql {CREATE TABLE tbl (a, b, c);}
+execsql {INSERT INTO tbl VALUES(1, 2, 3);}
+execsql {INSERT INTO tbl VALUES(4, 5, 6);}
+execsql {
+    CREATE TRIGGER before_tbl_update BEFORE UPDATE ON tbl BEGIN
+        SELECT CASE WHEN (old.a = 1) THEN RAISE(IGNORE) END;
+    END;
+
+    CREATE TRIGGER before_tbl_delete BEFORE DELETE ON tbl BEGIN
+        SELECT CASE WHEN (old.a = 1) THEN RAISE(IGNORE) END;
+    END;
+}
+do_test trigger3-5.1 {
+    execsql {
+        UPDATE tbl SET c = 10;
+        SELECT * FROM tbl;
+    }
+} {1 2 3 4 5 10}
+do_test trigger3-5.2 {
+    execsql {
+        DELETE FROM tbl;
+        SELECT * FROM tbl;
+    }
+} {1 2 3}
+
+# Check that RAISE(IGNORE) works correctly for nested triggers:
+execsql {CREATE TABLE tbl2(a, b, c)}
+execsql {
+    CREATE TRIGGER after_tbl2_insert AFTER INSERT ON tbl2 BEGIN
+        UPDATE tbl SET c = 10;
+        INSERT INTO tbl2 VALUES (new.a, new.b, new.c);
+    END;
+}
+do_test trigger3-6 {
+    execsql {
+        INSERT INTO tbl2 VALUES (1, 2, 3);
+        SELECT * FROM tbl2;
+        SELECT * FROM tbl;
+    }
+} {1 2 3 1 2 3 1 2 3}
+
+# Check that things also work for view-triggers
+
+ifcapable view {
+
+execsql {CREATE VIEW tbl_view AS SELECT * FROM tbl}
+execsql {
+    CREATE TRIGGER tbl_view_insert INSTEAD OF INSERT ON tbl_view BEGIN
+        SELECT CASE WHEN (new.a = 1) THEN RAISE(ROLLBACK, 'View rollback')
+                    WHEN (new.a = 2) THEN RAISE(IGNORE) 
+                    WHEN (new.a = 3) THEN RAISE(ABORT, 'View abort') END;
+    END;
+}
+
+do_test trigger3-7.1 {
+    catchsql {
+        INSERT INTO tbl_view VALUES(1, 2, 3);
+    }
+} {1 {View rollback}}
+verify_ex_errcode trigger3-7.1b SQLITE_CONSTRAINT_TRIGGER
+do_test trigger3-7.2 {
+    catchsql {
+        INSERT INTO tbl_view VALUES(2, 2, 3);
+    }
+} {0 {}}
+do_test trigger3-7.3 {
+    catchsql {
+        INSERT INTO tbl_view VALUES(3, 2, 3);
+    }
+} {1 {View abort}}
+verify_ex_errcode trigger3-7.3b SQLITE_CONSTRAINT_TRIGGER
+
+} ;# ifcapable view
+
+integrity_check trigger3-8.1
+
+catchsql { DROP TABLE tbl; } 
+catchsql { DROP TABLE tbl2; } 
+catchsql { DROP VIEW tbl_view; }
+
+finish_test
diff --git a/test/trigger4.test b/test/trigger4.test
new file mode 100644
index 0000000000000000000000000000000000000000..a05a5e735f3ea96f1d8d5f423694a96f432a2db5
--- /dev/null
+++ b/test/trigger4.test
@@ -0,0 +1,200 @@
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file tests the triggers of views.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If either views or triggers are disabled in this build, omit this file.
+ifcapable {!trigger || !view} {
+  finish_test
+  return
+}
+
+do_test trigger4-1.1 {
+  execsql {
+    create table test1(id integer primary key,a);
+    create table test2(id integer,b);
+    create view test as
+      select test1.id as id,a as a,b as b
+      from test1 join test2 on test2.id =  test1.id;
+    create trigger I_test instead of insert on test
+      begin
+        insert into test1 (id,a) values (NEW.id,NEW.a);
+        insert into test2 (id,b) values (NEW.id,NEW.b);
+      end;
+    insert into test values(1,2,3);
+    select * from test1;
+  }
+} {1 2}
+do_test trigger4-1.2 {
+  execsql {
+    select * from test2;
+  }
+} {1 3}
+do_test trigger4-1.3 {
+  db close
+  sqlite3 db test.db
+  execsql {
+    insert into test values(4,5,6);
+    select * from test1;
+  }
+} {1 2 4 5}
+do_test trigger4-1.4 {
+  execsql {
+    select * from test2;
+  }
+} {1 3 4 6}
+
+do_test trigger4-2.1 {
+  execsql {
+    create trigger U_test instead of update on test
+      begin
+        update test1 set a=NEW.a where id=NEW.id;
+        update test2 set b=NEW.b where id=NEW.id;
+      end;
+    update test set a=22 where id=1;
+    select * from test1;
+  }
+} {1 22 4 5}
+do_test trigger4-2.2 {
+  execsql {
+    select * from test2;
+  }
+} {1 3 4 6}
+do_test trigger4-2.3 {
+  db close
+  sqlite3 db test.db
+  execsql {
+    update test set b=66 where id=4;
+    select * from test1;
+  }
+} {1 22 4 5}
+do_test trigger4-2.4 {
+  execsql {
+    select * from test2;
+  }
+} {1 3 4 66}
+
+do_test trigger4-3.1 {
+  catchsql {
+    drop table test2;
+    insert into test values(7,8,9);
+  }
+} {1 {no such table: main.test2}}
+do_test trigger4-3.2 {
+  db close
+  sqlite3 db test.db
+  catchsql {
+    insert into test values(7,8,9);
+  }
+} {1 {no such table: main.test2}}
+do_test trigger4-3.3 {
+  catchsql {
+    update test set a=222 where id=1;
+  }
+} {1 {no such table: main.test2}}
+do_test trigger4-3.4 {
+  execsql {
+    select * from test1;
+  }
+} {1 22 4 5}
+do_test trigger4-3.5 {
+  execsql {
+    create table test2(id,b);
+    insert into test values(7,8,9);
+    select * from test1;
+  }
+} {1 22 4 5 7 8}
+do_test trigger4-3.6 {
+  execsql {
+    select * from test2;
+  }
+} {7 9}
+do_test trigger4-3.7 {
+  db close
+  sqlite3 db test.db
+  execsql {
+    update test set b=99 where id=7;
+    select * from test2;
+  }
+} {7 99}
+
+do_test trigger4-4.1 {
+    db close
+    forcedelete trigtest.db
+    forcedelete trigtest.db-journal
+    sqlite3 db trigtest.db
+    catchsql {drop table tbl; drop view vw}
+    execsql {
+	create table tbl(a integer primary key, b integer);
+	create view vw as select * from tbl;
+	create trigger t_del_tbl instead of delete on vw for each row begin
+	  delete from tbl where a = old.a;
+	end;
+	create trigger t_upd_tbl instead of update on vw for each row begin
+	  update tbl set a=new.a, b=new.b where a = old.a;
+	end;
+	create trigger t_ins_tbl instead of insert on vw for each row begin
+	  insert into tbl values (new.a,new.b);
+	end;
+	insert into tbl values(101,1001);
+	insert into tbl values(102,1002);
+	insert into tbl select a+2, b+2 from tbl;
+	insert into tbl select a+4, b+4 from tbl;
+	insert into tbl select a+8, b+8 from tbl;
+	insert into tbl select a+16, b+16 from tbl;
+	insert into tbl select a+32, b+32 from tbl;
+	insert into tbl select a+64, b+64 from tbl;
+	select count(*) from vw;
+    }
+} {128}
+do_test trigger4-4.2 {
+    execsql {select a, b from vw where a<103 or a>226 order by a}
+} {101 1001 102 1002 227 1127 228 1128}
+
+#test delete from view
+do_test trigger4-5.1 {
+    catchsql {delete from vw where a>101 and a<2000}
+} {0 {}}
+do_test trigger4-5.2 {
+    execsql {select * from vw}
+} {101 1001}
+
+#test insert into view
+do_test trigger4-6.1 {
+    catchsql {
+	insert into vw values(102,1002);
+	insert into vw select a+2, b+2 from vw;
+	insert into vw select a+4, b+4 from vw;
+	insert into vw select a+8, b+8 from vw;
+	insert into vw select a+16, b+16 from vw;
+	insert into vw select a+32, b+32 from vw;
+	insert into vw select a+64, b+64 from vw;
+    }
+} {0 {}}
+do_test trigger4-6.2 {
+    execsql {select count(*) from vw}
+} {128}
+
+#test update of view
+do_test trigger4-7.1 {
+    catchsql {update vw set b=b+1000 where a>101 and a<2000}
+} {0 {}}
+do_test trigger4-7.2 {
+    execsql {select a, b from vw where a<=102 or a>=227 order by a}
+} {101 1001 102 2002 227 2127 228 2128}
+
+integrity_check trigger4-99.9
+db close
+forcedelete trigtest.db trigtest.db-journal
+
+finish_test
diff --git a/test/trigger5.test b/test/trigger5.test
new file mode 100644
index 0000000000000000000000000000000000000000..75c56b19c9af14170e9ffab15541e74082b07d9f
--- /dev/null
+++ b/test/trigger5.test
@@ -0,0 +1,43 @@
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file tests the triggers of views.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable {!trigger} {
+  finish_test
+  return
+}
+
+# Ticket #844
+#
+do_test trigger5-1.1 {
+  execsql {
+    CREATE TABLE Item(
+       a integer PRIMARY KEY NOT NULL ,
+       b double NULL ,
+       c int NOT NULL DEFAULT 0
+    );
+    CREATE TABLE Undo(UndoAction TEXT);
+    INSERT INTO Item VALUES (1,38205.60865,340);
+    CREATE TRIGGER trigItem_UNDO_AD AFTER DELETE ON Item FOR EACH ROW
+    BEGIN
+      INSERT INTO Undo SELECT 'INSERT INTO Item (a,b,c) VALUES ('
+       || coalesce(old.a,'NULL') || ',' || quote(old.b) || ',' || old.c || ');';
+    END;
+    DELETE FROM Item WHERE a = 1;
+    SELECT * FROM Undo;
+  }
+} {{INSERT INTO Item (a,b,c) VALUES (1,38205.60865,340);}}
+
+integrity_check trigger5-99.9
+
+finish_test
diff --git a/test/trigger6.test b/test/trigger6.test
new file mode 100644
index 0000000000000000000000000000000000000000..bb343faf051b8bc546048104d8ec0a3f2b79922c
--- /dev/null
+++ b/test/trigger6.test
@@ -0,0 +1,82 @@
+# 2004 December 07
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to make sure expression of an INSERT
+# and UPDATE statement are only evaluated once.  See ticket #980.
+# If an expression uses a function that has side-effects or which
+# is not deterministic (ex: random()) then we want to make sure
+# that the same evaluation occurs for the actual INSERT/UPDATE and
+# for the NEW.* fields of any triggers that fire.
+#
+# $Id: trigger6.test,v 1.2 2005/05/05 11:04:50 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable {!trigger} {
+  finish_test
+  return
+}
+
+do_test trigger6-1.1 {
+  execsql {
+    CREATE TABLE t1(x, y);
+    CREATE TABLE log(a, b, c);
+    CREATE TRIGGER r1 BEFORE INSERT ON t1 BEGIN
+      INSERT INTO log VALUES(1, new.x, new.y);
+    END;
+    CREATE TRIGGER r2 BEFORE UPDATE ON t1 BEGIN
+      INSERT INTO log VALUES(2, new.x, new.y);
+    END;
+  }
+  set ::trigger6_cnt 0
+  proc trigger6_counter {args} {
+    incr ::trigger6_cnt
+    return $::trigger6_cnt
+  }
+  db function counter trigger6_counter
+  execsql {
+    INSERT INTO t1 VALUES(1,counter());
+    SELECT * FROM t1;
+  }
+} {1 1}
+do_test trigger6-1.2 {
+  execsql {
+    SELECT * FROM log;
+  }
+} {1 1 1}
+do_test trigger6-1.3 {
+  execsql {
+    DELETE FROM t1;
+    DELETE FROM log;
+    INSERT INTO t1 VALUES(2,counter(2,3)+4);
+    SELECT * FROM t1;
+  }
+} {2 6}
+do_test trigger6-1.4 {
+  execsql {
+    SELECT * FROM log;
+  }
+} {1 2 6}
+do_test trigger6-1.5 {
+  execsql {
+    DELETE FROM log;
+    UPDATE t1 SET y=counter(5);
+    SELECT * FROM t1;
+  }
+} {2 3}
+do_test trigger6-1.6 {
+  execsql {
+    SELECT * FROM log;
+  }
+} {2 2 3}
+
+finish_test
diff --git a/test/trigger7.test b/test/trigger7.test
new file mode 100644
index 0000000000000000000000000000000000000000..ecc86dbb13ba8307a97e95677a3de4d52ad70177
--- /dev/null
+++ b/test/trigger7.test
@@ -0,0 +1,119 @@
+# 2005 August 18
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to increase coverage of trigger.c.
+#
+# $Id: trigger7.test,v 1.3 2008/08/11 18:44:58 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable {!trigger} {
+  finish_test
+  return
+}
+
+# Error messages resulting from qualified trigger names.
+#
+do_test trigger7-1.1 {
+  execsql {
+    CREATE TABLE t1(x, y);
+  }
+  catchsql {
+    CREATE TEMP TRIGGER main.r1 AFTER INSERT ON t1 BEGIN
+      SELECT 'no nothing';
+    END
+  }
+} {1 {temporary trigger may not have qualified name}}
+do_test trigger7-1.2 {
+  catchsql {
+    CREATE TRIGGER not_a_db.r1 AFTER INSERT ON t1 BEGIN
+      SELECT 'no nothing';
+    END
+  }
+} {1 {unknown database not_a_db}}
+
+
+# When the UPDATE OF syntax is used, no code is generated for triggers
+# that do not match the update columns.
+#
+ifcapable explain {
+  do_test trigger7-2.1 {
+    execsql {
+      CREATE TRIGGER r1 AFTER UPDATE OF x ON t1 BEGIN
+        SELECT '___update_t1.x___';
+      END;
+      CREATE TRIGGER r2 AFTER UPDATE OF y ON t1 BEGIN
+        SELECT '___update_t1.y___';
+      END;
+    }
+    set txt [db eval {EXPLAIN UPDATE t1 SET x=5}]
+    string match *___update_t1.x___* $txt
+  } 1
+  do_test trigger7-2.2 {
+    set txt [db eval {EXPLAIN UPDATE t1 SET x=5}]
+    string match *___update_t1.y___* $txt
+  } 0
+  do_test trigger7-2.3 {
+    set txt [db eval {EXPLAIN UPDATE t1 SET y=5}]
+    string match *___update_t1.x___* $txt
+  } 0
+  do_test trigger7-2.4 {
+    set txt [db eval {EXPLAIN UPDATE t1 SET y=5}]
+    string match *___update_t1.y___* $txt
+  } 1
+  do_test trigger7-2.5 {
+    set txt [db eval {EXPLAIN UPDATE t1 SET rowid=5}]
+    string match *___update_t1.x___* $txt
+  } 0
+  do_test trigger7-2.6 {
+    set txt [db eval {EXPLAIN UPDATE t1 SET rowid=5}]
+    string match *___update_t1.x___* $txt
+  } 0
+}
+
+# Test the ability to create many triggers on the same table, then
+# selectively drop those triggers.
+#
+do_test trigger7-3.1 {
+  execsql {
+    CREATE TABLE t2(x,y,z);
+    CREATE TRIGGER t2r1 AFTER INSERT ON t2 BEGIN SELECT 1; END;
+    CREATE TRIGGER t2r2 BEFORE INSERT ON t2 BEGIN SELECT 1; END;
+    CREATE TRIGGER t2r3 AFTER UPDATE ON t2 BEGIN SELECT 1; END;
+    CREATE TRIGGER t2r4 BEFORE UPDATE ON t2 BEGIN SELECT 1; END;
+    CREATE TRIGGER t2r5 AFTER DELETE ON t2 BEGIN SELECT 1; END;
+    CREATE TRIGGER t2r6 BEFORE DELETE ON t2 BEGIN SELECT 1; END;
+    CREATE TRIGGER t2r7 AFTER INSERT ON t2 BEGIN SELECT 1; END;
+    CREATE TRIGGER t2r8 BEFORE INSERT ON t2 BEGIN SELECT 1; END;
+    CREATE TRIGGER t2r9 AFTER UPDATE ON t2 BEGIN SELECT 1; END;
+    CREATE TRIGGER t2r10 BEFORE UPDATE ON t2 BEGIN SELECT 1; END;
+    CREATE TRIGGER t2r11 AFTER DELETE ON t2 BEGIN SELECT 1; END;
+    CREATE TRIGGER t2r12 BEFORE DELETE ON t2 BEGIN SELECT 1; END;
+    DROP TRIGGER t2r6;
+  }
+} {}
+
+# This test corrupts the database file so it must be the last test
+# in the series.
+#
+do_test trigger7-99.1 {
+  sqlite3_db_config db DEFENSIVE 0
+  execsql {
+    PRAGMA writable_schema=on;
+    UPDATE sqlite_master SET sql='nonsense';
+  }
+  db close
+  catch { sqlite3 db test.db }
+  catchsql { DROP TRIGGER t2r5 }
+} {/1 {malformed database schema .*}/}
+
+finish_test
diff --git a/test/trigger8.test b/test/trigger8.test
new file mode 100644
index 0000000000000000000000000000000000000000..3064ea601489cc50f32965e3b286a0fc2c52b5ce
--- /dev/null
+++ b/test/trigger8.test
@@ -0,0 +1,53 @@
+# 2006 February 27
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to make sure abusively large triggers
+# (triggers with 100s or 1000s of statements) work.
+#
+# $Id: trigger8.test,v 1.2 2008/09/17 16:14:10 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable {!trigger} {
+  finish_test
+  return
+}
+
+# Set variable $nStatement to the number of statements to include in the
+# body of the trigger. On a workstation with virtually unlimited memory, 
+# use 10000. But on symbian, which allows each application at most a 32MB
+# heap, use 1000.
+#
+set nStatement 10000
+if {$tcl_platform(platform) == "symbian"} {
+  set nStatement 1000
+}
+
+set nStatement 5
+do_test trigger8-1.1 {
+  execsql {
+    CREATE TABLE t1(x);
+    CREATE TABLE t2(y);
+  }
+  set sql "CREATE TRIGGER r${nStatement} AFTER INSERT ON t1 BEGIN\n"
+  for {set i 0} {$i<$nStatement} {incr i} {
+    append sql "  INSERT INTO t2 VALUES($i);\n"
+  }
+  append sql "END;"
+  execsql $sql
+  execsql {
+    INSERT INTO t1 VALUES(5);
+    SELECT count(*) FROM t2;
+  }
+} $nStatement
+
+finish_test
diff --git a/test/trigger9.test b/test/trigger9.test
new file mode 100644
index 0000000000000000000000000000000000000000..47940de5778e9019700f58cf05fc85d8417a4465
--- /dev/null
+++ b/test/trigger9.test
@@ -0,0 +1,268 @@
+# 2008 January 1
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. Specifically,
+# it tests some compiler optimizations for SQL statements featuring
+# triggers:
+#
+#
+#
+
+# trigger9-1.* -   Test that if there are no references to OLD.* cols, or a
+#                  reference to only OLD.rowid, the data is not loaded.
+#
+# trigger9-2.* -   Test that for NEW.* records populated by UPDATE 
+#                  statements, unused fields are populated with NULL values. 
+#
+# trigger9-3.* -   Test that the temporary tables used for OLD.* references
+#                  in "INSTEAD OF" triggers have NULL values in unused 
+#                  fields.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable {!trigger} {
+  finish_test
+  return
+}
+set ::testprefix trigger9
+
+proc has_rowdata {sql} {
+  expr {[lsearch [execsql "explain $sql"] RowData]>=0}
+}
+
+do_test trigger9-1.1 {
+  execsql {
+    PRAGMA page_size = 1024;
+    CREATE TABLE t1(x, y, z);
+    INSERT INTO t1 VALUES('1', randstr(10000,10000), '2');
+    INSERT INTO t1 VALUES('2', randstr(10000,10000), '4');
+    INSERT INTO t1 VALUES('3', randstr(10000,10000), '6');
+    CREATE TABLE t2(x);
+  }
+} {}
+
+do_test trigger9-1.2.1 {
+  execsql {
+    BEGIN;
+      CREATE TRIGGER trig1 BEFORE DELETE ON t1 BEGIN
+        INSERT INTO t2 VALUES(old.rowid);
+      END;
+      DELETE FROM t1;
+      SELECT * FROM t2;
+  }
+} {1 2 3}
+do_test trigger9-1.2.3 {
+  has_rowdata {DELETE FROM t1}
+} 0
+do_test trigger9-1.2.4 { execsql { ROLLBACK } } {}
+
+do_test trigger9-1.3.1 {
+  execsql {
+    BEGIN;
+      CREATE TRIGGER trig1 BEFORE DELETE ON t1 BEGIN
+        INSERT INTO t2 VALUES(old.x);
+      END;
+      DELETE FROM t1;
+      SELECT * FROM t2;
+  }
+} {1 2 3}
+do_test trigger9-1.3.2 {
+  has_rowdata {DELETE FROM t1}
+} 0
+do_test trigger9-1.3.3 { execsql { ROLLBACK } } {}
+
+do_test trigger9-1.4.1 {
+  execsql {
+    BEGIN;
+      CREATE TRIGGER trig1 BEFORE DELETE ON t1 WHEN old.x='1' BEGIN
+        INSERT INTO t2 VALUES(old.rowid);
+      END;
+      DELETE FROM t1;
+      SELECT * FROM t2;
+  }
+} {1}
+do_test trigger9-1.4.2 {
+  has_rowdata {DELETE FROM t1}
+} 0
+do_test trigger9-1.4.3 { execsql { ROLLBACK } } {}
+
+do_test trigger9-1.5.1 {
+  execsql {
+    BEGIN;
+      CREATE TRIGGER trig1 BEFORE UPDATE ON t1 BEGIN
+        INSERT INTO t2 VALUES(old.rowid);
+      END;
+      UPDATE t1 SET y = '';
+      SELECT * FROM t2;
+  }
+} {1 2 3}
+do_test trigger9-1.5.2 {
+  has_rowdata {UPDATE t1 SET y = ''}
+} 0
+do_test trigger9-1.5.3 { execsql { ROLLBACK } } {}
+
+do_test trigger9-1.6.1 {
+  execsql {
+    BEGIN;
+      CREATE TRIGGER trig1 BEFORE UPDATE ON t1 BEGIN
+        INSERT INTO t2 VALUES(old.x);
+      END;
+      UPDATE t1 SET y = '';
+      SELECT * FROM t2;
+  }
+} {1 2 3}
+do_test trigger9-1.6.2 {
+  has_rowdata {UPDATE t1 SET y = ''}
+} 0
+do_test trigger9-1.6.3 { execsql { ROLLBACK } } {}
+
+do_test trigger9-1.7.1 {
+  execsql {
+    BEGIN;
+      CREATE TRIGGER trig1 BEFORE UPDATE ON t1 WHEN old.x>='2' BEGIN
+        INSERT INTO t2 VALUES(old.x);
+      END;
+      UPDATE t1 SET y = '';
+      SELECT * FROM t2;
+  }
+} {2 3}
+do_test trigger9-1.7.2 {
+  has_rowdata {UPDATE t1 SET y = ''}
+} 0
+do_test trigger9-1.7.3 { execsql { ROLLBACK } } {}
+
+do_test trigger9-3.1 {
+  execsql {
+    CREATE TABLE t3(a, b);
+    INSERT INTO t3 VALUES(1, 'one');
+    INSERT INTO t3 VALUES(2, 'two');
+    INSERT INTO t3 VALUES(3, 'three');
+  }
+} {}
+do_test trigger9-3.2 {
+  execsql {
+    BEGIN;
+      CREATE VIEW v1 AS SELECT * FROM t3;
+      CREATE TRIGGER trig1 INSTEAD OF UPDATE ON v1 BEGIN
+        INSERT INTO t2 VALUES(old.a);
+      END;
+      UPDATE v1 SET b = 'hello';
+      SELECT * FROM t2;
+    ROLLBACK;
+  }
+} {1 2 3}
+do_test trigger9-3.3 {
+  # In this test the 'c' column of the view is not required by
+  # the INSTEAD OF trigger, but the expression is reused internally as
+  # part of the view's WHERE clause. Check that this does not cause
+  # a problem.
+  #
+  execsql {
+    BEGIN;
+      CREATE VIEW v1 AS SELECT a, b AS c FROM t3 WHERE c > 'one';
+      CREATE TRIGGER trig1 INSTEAD OF UPDATE ON v1 BEGIN
+        INSERT INTO t2 VALUES(old.a);
+      END;
+      UPDATE v1 SET c = 'hello';
+      SELECT * FROM t2;
+    ROLLBACK;
+  }
+} {2 3}
+do_test trigger9-3.4 {
+  execsql {
+    BEGIN;
+      INSERT INTO t3 VALUES(3, 'three');
+      INSERT INTO t3 VALUES(3, 'four');
+      CREATE VIEW v1 AS SELECT DISTINCT a, b FROM t3;
+      CREATE TRIGGER trig1 INSTEAD OF UPDATE ON v1 BEGIN
+        INSERT INTO t2 VALUES(old.a);
+      END;
+      UPDATE v1 SET b = 'hello';
+      SELECT * FROM t2;
+    ROLLBACK;
+  }
+} {1 2 3 3}
+
+ifcapable compound {
+  do_test trigger9-3.5 {
+    execsql {
+      BEGIN;
+        INSERT INTO t3 VALUES(1, 'uno');
+        CREATE VIEW v1 AS SELECT a, b FROM t3 EXCEPT SELECT 1, 'one';
+        CREATE TRIGGER trig1 INSTEAD OF UPDATE ON v1 BEGIN
+          INSERT INTO t2 VALUES(old.a);
+        END;
+        UPDATE v1 SET b = 'hello';
+        SELECT * FROM t2;
+      ROLLBACK;
+    }
+  } {1 2 3}
+  do_test trigger9-3.6 {
+    execsql {
+      BEGIN;
+        INSERT INTO t3 VALUES(1, 'zero');
+        CREATE VIEW v1 AS 
+          SELECT sum(a) AS a, max(b) AS b FROM t3 GROUP BY t3.a HAVING b>'two';
+        CREATE TRIGGER trig1 INSTEAD OF UPDATE ON v1 BEGIN
+          INSERT INTO t2 VALUES(old.a);
+        END;
+        UPDATE v1 SET b = 'hello';
+        SELECT * FROM t2;
+      ROLLBACK;
+    }
+  } {2}
+}
+
+reset_db
+do_execsql_test 4.1 {
+  CREATE TABLE t1(a, b);
+  CREATE TABLE log(x);
+  INSERT INTO t1 VALUES(1, 2);
+  INSERT INTO t1 VALUES(3, 4);
+  CREATE VIEW v1 AS SELECT a, b FROM t1;
+
+  CREATE TRIGGER tr1 INSTEAD OF DELETE ON v1 BEGIN
+    INSERT INTO log VALUES('delete');
+  END;
+
+  CREATE TRIGGER tr2 INSTEAD OF UPDATE ON v1 BEGIN
+    INSERT INTO log VALUES('update');
+  END;
+
+  CREATE TRIGGER tr3 INSTEAD OF INSERT ON v1 BEGIN
+    INSERT INTO log VALUES('insert');
+  END;
+}
+
+ifcapable !allow_rowid_in_view {
+  do_catchsql_test 4.2 {
+    DELETE FROM v1 WHERE rowid=1;
+  } {1 {no such column: rowid}}
+
+  do_catchsql_test 4.3 {
+    UPDATE v1 SET a=b WHERE rowid=2;
+  } {1 {no such column: rowid}}
+} else {
+  do_execsql_test 4.2a {
+    DELETE FROM log;
+  }
+  do_catchsql_test 4.2 {
+    DELETE FROM v1 WHERE rowid=1;
+  } {0 {}}
+  do_catchsql_test 4.3 {
+    UPDATE v1 SET a=b WHERE rowid=2;
+  } {0 {}}
+  do_execsql_test 4.3b {
+    SELECT * FROM log;
+  }
+}
+
+finish_test
diff --git a/test/triggerA.test b/test/triggerA.test
new file mode 100644
index 0000000000000000000000000000000000000000..598d291295892461b73a9eabfff9dd924f08d266
--- /dev/null
+++ b/test/triggerA.test
@@ -0,0 +1,230 @@
+# 2008 February 12
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. Specifically,
+# it tests issues relating to firing an INSTEAD OF trigger on a VIEW
+# when one tries to UPDATE or DELETE from the view.  Does the WHERE
+# clause of the UPDATE or DELETE statement get passed down correctly 
+# into the query that manifests the view?
+#
+# Ticket #2938
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable !trigger||!compound {
+  finish_test
+  return
+}
+
+# Create two table containing some sample data
+#
+do_test triggerA-1.1 {
+  db eval {
+    CREATE TABLE t1(x INTEGER PRIMARY KEY, y TEXT UNIQUE);
+    CREATE TABLE t2(a INTEGER PRIMARY KEY, b INTEGER UNIQUE, c TEXT);
+  }
+  set i 1
+  foreach word {one two three four five six seven eight nine ten} {
+    set j [expr {$i*100 + [string length $word]}]
+    db eval {
+       INSERT INTO t1 VALUES($i,$word);
+       INSERT INTO t2 VALUES(20-$i,$j,$word);
+    }
+    incr i
+  }
+  db eval {
+    SELECT count(*) FROM t1 UNION ALL SELECT count(*) FROM t2;
+  }
+} {10 10}
+
+# Create views of various forms against one or both of the two tables.
+#
+do_test triggerA-1.2 {
+  db eval {
+     CREATE VIEW v1 AS SELECT y, x FROM t1;
+     SELECT * FROM v1 ORDER BY 1;
+  }
+} {eight 8 five 5 four 4 nine 9 one 1 seven 7 six 6 ten 10 three 3 two 2}
+do_test triggerA-1.3 {
+  db eval {
+     CREATE VIEW v2 AS SELECT x, y FROM t1 WHERE y GLOB '*e*';
+     SELECT * FROM v2 ORDER BY 1;
+  }
+} {1 one 3 three 5 five 7 seven 8 eight 9 nine 10 ten}
+do_test triggerA-1.4 {
+  db eval {
+     CREATE VIEW v3 AS
+       SELECT CAST(x AS TEXT) AS c1 FROM t1 UNION SELECT y FROM t1;
+     SELECT * FROM v3 ORDER BY c1;
+  }
+} {1 10 2 3 4 5 6 7 8 9 eight five four nine one seven six ten three two}
+do_test triggerA-1.5 {
+  db eval {
+     CREATE VIEW v4 AS
+        SELECT CAST(x AS TEXT) AS c1 FROM t1
+        UNION SELECT y FROM t1 WHERE x BETWEEN 3 and 5;
+     SELECT * FROM v4 ORDER BY 1;
+  }
+} {1 10 2 3 4 5 6 7 8 9 five four three}
+do_test triggerA-1.6 {
+  db eval {
+     CREATE VIEW v5 AS SELECT x, b FROM t1, t2 WHERE y=c;
+     SELECT * FROM v5 ORDER BY x DESC;
+  }
+} {10 1003 9 904 8 805 7 705 6 603 5 504 4 404 3 305 2 203 1 103}
+
+# Create INSTEAD OF triggers on the views.  Run UPDATE and DELETE statements
+# using those triggers.  Verify correct operation.
+#
+do_test triggerA-2.1 {
+  db eval {
+     CREATE TABLE result2(a,b);
+     CREATE TRIGGER r1d INSTEAD OF DELETE ON v1 BEGIN
+       INSERT INTO result2(a,b) VALUES(old.y, old.x);
+     END;
+     DELETE FROM v1 WHERE x=5;
+     SELECT * FROM result2;
+  }
+} {five 5}
+do_test triggerA-2.2 {
+  db eval {
+     CREATE TABLE result4(a,b,c,d);
+     CREATE TRIGGER r1u INSTEAD OF UPDATE ON v1 BEGIN
+       INSERT INTO result4(a,b,c,d) VALUES(old.y, old.x, new.y, new.x);
+     END;
+     UPDATE v1 SET y=y||'-extra' WHERE x BETWEEN 3 AND 5;
+     SELECT * FROM result4 ORDER BY a;
+  }
+} {five 5 five-extra 5 four 4 four-extra 4 three 3 three-extra 3}
+
+
+do_test triggerA-2.3 {
+  db eval {
+     DELETE FROM result2;
+     CREATE TRIGGER r2d INSTEAD OF DELETE ON v2 BEGIN
+       INSERT INTO result2(a,b) VALUES(old.y, old.x);
+     END;
+     DELETE FROM v2 WHERE x=5;
+     SELECT * FROM result2;
+  }
+} {five 5}
+do_test triggerA-2.4 {
+  db eval {
+     DELETE FROM result4;
+     CREATE TRIGGER r2u INSTEAD OF UPDATE ON v2 BEGIN
+       INSERT INTO result4(a,b,c,d) VALUES(old.y, old.x, new.y, new.x);
+     END;
+     UPDATE v2 SET y=y||'-extra' WHERE x BETWEEN 3 AND 5;
+     SELECT * FROM result4 ORDER BY a;
+  }
+} {five 5 five-extra 5 three 3 three-extra 3}
+
+
+do_test triggerA-2.5 {
+  db eval {
+     CREATE TABLE result1(a);
+     CREATE TRIGGER r3d INSTEAD OF DELETE ON v3 BEGIN
+       INSERT INTO result1(a) VALUES(old.c1);
+     END;
+     DELETE FROM v3 WHERE c1 BETWEEN '8' AND 'eight';
+     SELECT * FROM result1 ORDER BY a;
+  }
+} {8 9 eight}
+do_test triggerA-2.6 {
+  db eval {
+     DELETE FROM result2;
+     CREATE TRIGGER r3u INSTEAD OF UPDATE ON v3 BEGIN
+       INSERT INTO result2(a,b) VALUES(old.c1, new.c1);
+     END;
+     UPDATE v3 SET c1 = c1 || '-extra' WHERE c1 BETWEEN '8' and 'eight';
+     SELECT * FROM result2 ORDER BY a;
+  }
+} {8 8-extra 9 9-extra eight eight-extra}
+
+
+do_test triggerA-2.7 {
+  db eval {
+     DELETE FROM result1;
+     CREATE TRIGGER r4d INSTEAD OF DELETE ON v4 BEGIN
+       INSERT INTO result1(a) VALUES(old.c1);
+     END;
+     DELETE FROM v4 WHERE c1 BETWEEN '8' AND 'eight';
+     SELECT * FROM result1 ORDER BY a;
+  }
+} {8 9}
+do_test triggerA-2.8 {
+  db eval {
+     DELETE FROM result2;
+     CREATE TRIGGER r4u INSTEAD OF UPDATE ON v4 BEGIN
+       INSERT INTO result2(a,b) VALUES(old.c1, new.c1);
+     END;
+     UPDATE v4 SET c1 = c1 || '-extra' WHERE c1 BETWEEN '8' and 'eight';
+     SELECT * FROM result2 ORDER BY a;
+  }
+} {8 8-extra 9 9-extra}
+
+
+do_test triggerA-2.9 {
+  db eval {
+     DELETE FROM result2;
+     CREATE TRIGGER r5d INSTEAD OF DELETE ON v5 BEGIN
+       INSERT INTO result2(a,b) VALUES(old.x, old.b);
+     END;
+     DELETE FROM v5 WHERE x=5;
+     SELECT * FROM result2;
+  }
+} {5 504}
+do_test triggerA-2.10 {
+  db eval {
+     DELETE FROM result4;
+     CREATE TRIGGER r5u INSTEAD OF UPDATE ON v5 BEGIN
+       INSERT INTO result4(a,b,c,d) VALUES(old.x, old.b, new.x, new.b);
+     END;
+     UPDATE v5 SET b = b+9900000 WHERE x BETWEEN 3 AND 5;
+     SELECT * FROM result4 ORDER BY a;
+  }
+} {3 305 3 9900305 4 404 4 9900404 5 504 5 9900504}
+do_test triggerA-2.11 {
+  db eval {
+     DELETE FROM result4;
+     UPDATE v5 SET b = main.v5.b+9900000 WHERE main.v5.x BETWEEN 3 AND 5;
+     SELECT * FROM result4 ORDER BY a;
+  }
+} {3 305 3 9900305 4 404 4 9900404 5 504 5 9900504}
+
+source $testdir/malloc_common.tcl
+
+# Save a copy of the current database configuration.
+#
+db close
+forcedelete test.db-triggerA
+copy_file test.db test.db-triggerA
+sqlite3 db test.db
+
+# Run malloc tests on the INSTEAD OF trigger firing.
+#
+do_malloc_test triggerA-3 -tclprep {
+  db close
+  forcedelete test.db test.db-journal
+  forcecopy test.db-triggerA test.db
+  sqlite3 db test.db
+  sqlite3_extended_result_codes db 1  
+  db eval {SELECT * FROM v5; -- warm up the cache}
+} -sqlbody {
+   DELETE FROM v5 WHERE x=5;
+   UPDATE v5 SET b=b+9900000 WHERE x BETWEEN 3 AND 5;
+}
+
+# Clean up the saved database copy.
+#
+forcedelete test.db-triggerA
+
+finish_test
diff --git a/test/triggerB.test b/test/triggerB.test
new file mode 100644
index 0000000000000000000000000000000000000000..ac4f37bcf4cadab496cadb73f97af825d08e222f
--- /dev/null
+++ b/test/triggerB.test
@@ -0,0 +1,153 @@
+# 2008 April 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice', here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. Specifically,
+# it tests updating tables with constraints within a trigger.  Ticket #3055.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable {!trigger} {
+  finish_test
+  return
+}
+
+# Create test tables with constraints.
+#
+do_test triggerB-1.1 {
+  execsql {
+    CREATE TABLE x(x INTEGER PRIMARY KEY, y INT NOT NULL);
+    INSERT INTO x(y) VALUES(1);
+    INSERT INTO x(y) VALUES(1);
+    CREATE TEMP VIEW vx AS SELECT x, y, 0 AS yy FROM x;
+    CREATE TEMP TRIGGER tx INSTEAD OF UPDATE OF y ON vx
+    BEGIN
+      UPDATE x SET y = new.y WHERE x = new.x;
+    END;
+    SELECT * FROM vx;
+  }
+} {1 1 0 2 1 0}
+do_test triggerB-1.2 {
+  execsql {
+    UPDATE vx SET y = yy;
+    SELECT * FROM vx;
+  }
+} {1 0 0 2 0 0}
+
+# Added 2008-08-22:
+#
+# Name resolution within triggers.
+#
+do_test triggerB-2.1 {
+  catchsql {
+    CREATE TRIGGER ty AFTER INSERT ON x BEGIN
+       SELECT wen.x; -- Unrecognized name
+    END;
+    INSERT INTO x VALUES(1,2);
+  }
+} {1 {no such column: wen.x}}
+do_test triggerB-2.2 {
+  catchsql {
+    CREATE TRIGGER tz AFTER UPDATE ON x BEGIN
+       SELECT dlo.x; -- Unrecognized name
+    END;
+    UPDATE x SET y=y+1;
+  }
+} {1 {no such column: dlo.x}}
+
+do_test triggerB-2.3 {
+  execsql {
+    CREATE TABLE t2(a INTEGER PRIMARY KEY, b);
+    INSERT INTO t2 VALUES(1,2);
+    CREATE TABLE changes(x,y);
+    CREATE TRIGGER r1t2 AFTER UPDATE ON t2 BEGIN
+      INSERT INTO changes VALUES(new.a, new.b);
+    END;
+  }
+  execsql {
+    UPDATE t2 SET a=a+10;
+    SELECT * FROM changes;
+  }
+} {11 2}
+do_test triggerB-2.4 {
+  execsql {
+    CREATE TRIGGER r2t2 AFTER DELETE ON t2 BEGIN
+      INSERT INTO changes VALUES(old.a, old.c);
+    END;
+  }
+  catchsql {
+    DELETE FROM t2;
+  }
+} {1 {no such column: old.c}}
+
+# Triggers maintain a mask of columns from the invoking table that are
+# used in the trigger body as NEW.column or OLD.column.  That mask is then
+# used to reduce the amount of information that needs to be loaded into
+# the NEW and OLD pseudo-tables at run-time.
+#
+# These tests cases check the logic for when there are many columns - more
+# than will fit in a bitmask.
+#
+do_test triggerB-3.1 {
+  execsql {
+    CREATE TABLE t3(
+       c0,  c1,  c2,  c3,  c4,  c5,  c6,  c7,  c8,  c9,
+       c10, c11, c12, c13, c14, c15, c16, c17, c18, c19,
+       c20, c21, c22, c23, c24, c25, c26, c27, c28, c29,
+       c30, c31, c32, c33, c34, c35, c36, c37, c38, c39,
+       c40, c41, c42, c43, c44, c45, c46, c47, c48, c49,
+       c50, c51, c52, c53, c54, c55, c56, c57, c58, c59,
+       c60, c61, c62, c63, c64, c65
+    );
+    CREATE TABLE t3_changes(colnum, oldval, newval);
+    INSERT INTO t3 VALUES(
+       'a0', 'a1', 'a2', 'a3', 'a4', 'a5', 'a6', 'a7', 'a8', 'a9',
+       'a10','a11','a12','a13','a14','a15','a16','a17','a18','a19',
+       'a20','a21','a22','a23','a24','a25','a26','a27','a28','a29',
+       'a30','a31','a32','a33','a34','a35','a36','a37','a38','a39',
+       'a40','a41','a42','a43','a44','a45','a46','a47','a48','a49',
+       'a50','a51','a52','a53','a54','a55','a56','a57','a58','a59',
+       'a60','a61','a62','a63','a64','a65'
+    );
+  }
+  for {set i 0} {$i<=65} {incr i} {
+    set sql [subst {
+      CREATE TRIGGER t3c$i AFTER UPDATE ON t3
+         WHEN old.c$i!=new.c$i BEGIN
+          INSERT INTO t3_changes VALUES($i, old.c$i, new.c$i);
+      END
+    }]
+    db eval $sql
+  }
+  execsql {
+    SELECT * FROM t3_changes
+  }
+} {}
+for {set i 0} {$i<=64} {incr i} {
+  do_test triggerB-3.2.$i.1 [subst {
+    execsql {
+      UPDATE t3 SET c$i='b$i';
+      SELECT * FROM t3_changes ORDER BY rowid DESC LIMIT 1;
+    }
+  }] [subst {$i a$i b$i}]
+  do_test triggerB-3.2.$i.2 [subst {
+    execsql {
+      SELECT count(*) FROM t3_changes
+    }
+  }] [expr {$i+1}]
+  do_test triggerB-3.2.$i.2 [subst {
+    execsql {
+      SELECT * FROM t3_changes WHERE colnum=$i
+    }
+  }] [subst {$i a$i b$i}]
+}
+  
+
+finish_test
diff --git a/test/triggerC.test b/test/triggerC.test
new file mode 100644
index 0000000000000000000000000000000000000000..a2a06038737c0195acad8381dbddb750c41e58ec
--- /dev/null
+++ b/test/triggerC.test
@@ -0,0 +1,1074 @@
+# 2009 August 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice', here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix triggerC
+ifcapable {!trigger} {
+  finish_test
+  return
+}
+
+#-------------------------------------------------------------------------
+# Test organization:
+#
+# triggerC-1.*: Haphazardly designed trigger related tests that were useful
+#               during an upgrade of the triggers sub-system.
+# 
+# triggerC-2.*:
+#
+# triggerC-3.*:
+#
+# triggerC-4.*:
+#
+# triggerC-5.*: Test that when recursive triggers are enabled DELETE 
+#               triggers are fired when rows are deleted as part of OR
+#               REPLACE conflict resolution. And that they are not fired
+#               if recursive triggers are not enabled.
+#
+# triggerC-6.*: Test that the recursive_triggers pragma returns correct
+#               results when invoked without an argument.
+#
+
+# Enable recursive triggers for this file.
+#
+execsql { PRAGMA recursive_triggers = on }
+
+#sqlite3_db_config_lookaside db 0 0 0
+
+#-------------------------------------------------------------------------
+# This block of tests, triggerC-1.*, are not aimed at any specific
+# property of the triggers sub-system. They were created to debug
+# specific problems while modifying SQLite to support recursive
+# triggers. They are left here in case they can help debug the
+# same problems again.
+#
+do_test triggerC-1.1 {
+  execsql {
+    CREATE TABLE t1(a, b, c);
+    CREATE TABLE log(t, a1, b1, c1, a2, b2, c2);
+    CREATE TRIGGER trig1 BEFORE INSERT ON t1 BEGIN
+      INSERT INTO log VALUES('before', NULL, NULL, NULL, new.a, new.b, new.c);
+    END;
+    CREATE TRIGGER trig2 AFTER INSERT ON t1 BEGIN
+      INSERT INTO log VALUES('after', NULL, NULL, NULL, new.a, new.b, new.c);
+    END;
+    CREATE TRIGGER trig3 BEFORE UPDATE ON t1 BEGIN
+      INSERT INTO log VALUES('before', old.a,old.b,old.c, new.a,new.b,new.c);
+    END;
+    CREATE TRIGGER trig4 AFTER UPDATE ON t1 BEGIN
+      INSERT INTO log VALUES('after', old.a,old.b,old.c, new.a,new.b,new.c);
+    END;
+
+    CREATE TRIGGER trig5 BEFORE DELETE ON t1 BEGIN
+      INSERT INTO log VALUES('before', old.a,old.b,old.c, NULL,NULL,NULL);
+    END;
+    CREATE TRIGGER trig6 AFTER DELETE ON t1 BEGIN
+      INSERT INTO log VALUES('after', old.a,old.b,old.c, NULL,NULL,NULL);
+    END;
+  }
+} {}
+do_test triggerC-1.2 {
+  execsql {
+    INSERT INTO t1 VALUES('A', 'B', 'C');
+    SELECT * FROM log;
+  }
+} {before {} {} {} A B C after {} {} {} A B C}
+do_test triggerC-1.3 {
+  execsql { SELECT * FROM t1 }
+} {A B C}
+do_test triggerC-1.4 {
+  execsql {
+    DELETE FROM log;
+    UPDATE t1 SET a = 'a';
+    SELECT * FROM log;
+  }
+} {before A B C a B C after A B C a B C}
+do_test triggerC-1.5 {
+  execsql { SELECT * FROM t1 }
+} {a B C}
+do_test triggerC-1.6 {
+  execsql {
+    DELETE FROM log;
+    DELETE FROM t1;
+    SELECT * FROM log;
+  }
+} {before a B C {} {} {} after a B C {} {} {}}
+do_test triggerC-1.7 {
+  execsql { SELECT * FROM t1 }
+} {}
+do_test triggerC-1.8 {
+  execsql {
+    CREATE TABLE t4(a, b);
+    CREATE TRIGGER t4t AFTER DELETE ON t4 BEGIN
+      SELECT RAISE(ABORT, 'delete is not supported');
+    END;
+  }
+} {}
+do_test triggerC-1.9 {
+  execsql { INSERT INTO t4 VALUES(1, 2) }
+  catchsql { DELETE FROM t4 }
+} {1 {delete is not supported}}
+do_test triggerC-1.10 {
+  execsql { SELECT * FROM t4 }
+} {1 2}
+do_test triggerC-1.11 {
+  execsql {
+    CREATE TABLE t5 (a primary key, b, c);
+    INSERT INTO t5 values (1, 2, 3);
+    CREATE TRIGGER au_tbl AFTER UPDATE ON t5 BEGIN
+      UPDATE OR IGNORE t5 SET a = new.a, c = 10;
+    END;
+  }
+} {}
+do_test triggerC-1.12 {
+  catchsql { UPDATE OR REPLACE t5 SET a = 4 WHERE a = 1 }
+} {1 {too many levels of trigger recursion}}
+do_test triggerC-1.13 {
+  execsql {
+    CREATE TABLE t6(a INTEGER PRIMARY KEY, b);
+    INSERT INTO t6 VALUES(1, 2);
+    create trigger r1 after update on t6 for each row begin
+      SELECT 1;
+    end;
+    UPDATE t6 SET a=a; 
+  }
+} {}
+do_test triggerC-1.14 {
+  execsql {
+    DROP TABLE t1;
+    CREATE TABLE cnt(n);
+    INSERT INTO cnt VALUES(0);
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b UNIQUE, c, d, e);
+    CREATE INDEX t1cd ON t1(c,d);
+    CREATE TRIGGER t1r1 AFTER UPDATE ON t1 BEGIN UPDATE cnt SET n=n+1; END;
+    INSERT INTO t1 VALUES(1,2,3,4,5);
+    INSERT INTO t1 VALUES(6,7,8,9,10);
+    INSERT INTO t1 VALUES(11,12,13,14,15);
+  }
+} {}
+do_test triggerC-1.15 {
+  catchsql { UPDATE OR ROLLBACK t1 SET a=100 }
+} {1 {UNIQUE constraint failed: t1.a}}
+
+
+#-------------------------------------------------------------------------
+# This block of tests, triggerC-2.*, tests that recursive trigger
+# programs (triggers that fire themselves) work. More specifically,
+# this block focuses on recursive INSERT triggers.
+#
+do_test triggerC-2.1.0 {
+  execsql {
+    CREATE TABLE t2(a PRIMARY KEY);
+  }
+} {}
+
+foreach {n tdefn rc} {
+  1 { 
+    CREATE TRIGGER t2_trig AFTER INSERT ON t2 WHEN (new.a>0) BEGIN
+      INSERT INTO t2 VALUES(new.a - 1);
+    END; 
+  } {0 {10 9 8 7 6 5 4 3 2 1 0}}
+
+  2 {
+    CREATE TRIGGER t2_trig AFTER INSERT ON t2 BEGIN
+      SELECT CASE WHEN new.a==2 THEN RAISE(IGNORE) ELSE NULL END;
+      INSERT INTO t2 VALUES(new.a - 1);
+    END;
+  } {0 {10 9 8 7 6 5 4 3 2}}
+
+  3 { 
+    CREATE TRIGGER t2_trig BEFORE INSERT ON t2 WHEN (new.a>0) BEGIN
+      INSERT INTO t2 VALUES(new.a - 1);
+    END; 
+  } {0 {0 1 2 3 4 5 6 7 8 9 10}}
+
+  4 { 
+    CREATE TRIGGER t2_trig BEFORE INSERT ON t2 BEGIN
+      SELECT CASE WHEN new.a==2 THEN RAISE(IGNORE) ELSE NULL END;
+      INSERT INTO t2 VALUES(new.a - 1);
+    END;
+  } {0 {3 4 5 6 7 8 9 10}}
+
+  5 { 
+    CREATE TRIGGER t2_trig BEFORE INSERT ON t2 BEGIN
+      INSERT INTO t2 VALUES(new.a - 1);
+    END;
+  } {1 {too many levels of trigger recursion}}
+
+  6 { 
+    CREATE TRIGGER t2_trig AFTER INSERT ON t2 WHEN (new.a>0) BEGIN
+      INSERT OR IGNORE INTO t2 VALUES(new.a);
+    END;
+  } {0 10}
+
+  7 { 
+    CREATE TRIGGER t2_trig BEFORE INSERT ON t2 WHEN (new.a>0) BEGIN
+      INSERT OR IGNORE INTO t2 VALUES(new.a);
+    END;
+  } {1 {too many levels of trigger recursion}}
+} {
+  do_test triggerC-2.1.$n {
+    catchsql { DROP TRIGGER t2_trig }
+    execsql  { DELETE FROM t2 }
+    execsql  $tdefn
+    catchsql {
+      INSERT INTO t2 VALUES(10);
+      SELECT * FROM t2 ORDER BY rowid;
+    }
+  } $rc
+}
+
+do_test triggerC-2.2 {
+  execsql "
+    CREATE TABLE t22(x);
+
+    CREATE TRIGGER t22a AFTER INSERT ON t22 BEGIN
+      INSERT INTO t22 SELECT x + (SELECT max(x) FROM t22) FROM t22;
+    END;
+    CREATE TRIGGER t22b BEFORE INSERT ON t22 BEGIN
+      SELECT CASE WHEN (SELECT count(*) FROM t22) >= [expr $SQLITE_MAX_TRIGGER_DEPTH / 2]
+                  THEN RAISE(IGNORE)
+                  ELSE NULL END;
+    END;
+
+    INSERT INTO t22 VALUES(1);
+    SELECT count(*) FROM t22;
+  "
+} [list [expr $SQLITE_MAX_TRIGGER_DEPTH / 2]]
+
+do_test triggerC-2.3 {
+  execsql "
+    CREATE TABLE t23(x PRIMARY KEY);
+
+    CREATE TRIGGER t23a AFTER INSERT ON t23 BEGIN
+      INSERT INTO t23 VALUES(new.x + 1);
+    END;
+
+    CREATE TRIGGER t23b BEFORE INSERT ON t23 BEGIN
+      SELECT CASE WHEN new.x>[expr $SQLITE_MAX_TRIGGER_DEPTH / 2]
+                  THEN RAISE(IGNORE)
+                  ELSE NULL END;
+    END;
+
+    INSERT INTO t23 VALUES(1);
+    SELECT count(*) FROM t23;
+  "
+} [list [expr $SQLITE_MAX_TRIGGER_DEPTH / 2]]
+ 
+
+#-----------------------------------------------------------------------
+# This block of tests, triggerC-3.*, test that SQLite throws an exception
+# when it detects excessive recursion.
+#
+do_test triggerC-3.1.1 {
+  execsql {
+    CREATE TABLE t3(a, b);
+    CREATE TRIGGER t3i AFTER INSERT ON t3 BEGIN
+      DELETE FROM t3 WHERE rowid = new.rowid;
+    END;
+    CREATE TRIGGER t3d AFTER DELETE ON t3 BEGIN
+      INSERT INTO t3 VALUES(old.a, old.b);
+    END;
+  }
+} {}
+do_test triggerC-3.1.2 {
+  catchsql { INSERT INTO t3 VALUES(0,0) }
+} {1 {too many levels of trigger recursion}}
+do_test triggerC-3.1.3 {
+  execsql { SELECT * FROM t3 }
+} {}
+
+do_test triggerC-3.2.1 {
+  execsql "
+    CREATE TABLE t3b(x);
+    CREATE TRIGGER t3bi AFTER INSERT ON t3b WHEN new.x<[expr $SQLITE_MAX_TRIGGER_DEPTH * 2] BEGIN
+      INSERT INTO t3b VALUES(new.x+1);
+    END;
+  "
+  catchsql {
+    INSERT INTO t3b VALUES(1);
+  }
+} {1 {too many levels of trigger recursion}}
+do_test triggerC-3.2.2 {
+  db eval {SELECT * FROM t3b}
+} {}
+
+do_test triggerC-3.3.1 {
+  catchsql "
+    INSERT INTO t3b VALUES([expr $SQLITE_MAX_TRIGGER_DEPTH + 1]);
+  "
+} {0 {}}
+do_test triggerC-3.3.2 {
+  db eval {SELECT count(*), max(x), min(x) FROM t3b}
+} [list $SQLITE_MAX_TRIGGER_DEPTH [expr $SQLITE_MAX_TRIGGER_DEPTH * 2] [expr $SQLITE_MAX_TRIGGER_DEPTH + 1]]
+
+do_test triggerC-3.4.1 {
+  catchsql "
+    DELETE FROM t3b;
+    INSERT INTO t3b VALUES([expr $SQLITE_MAX_TRIGGER_DEPTH - 1]);
+  "
+} {1 {too many levels of trigger recursion}}
+do_test triggerC-3.4.2 {
+  db eval {SELECT count(*), max(x), min(x) FROM t3b}
+} {0 {} {}}
+
+do_test triggerC-3.5.1 {
+  sqlite3_limit db SQLITE_LIMIT_TRIGGER_DEPTH  [expr $SQLITE_MAX_TRIGGER_DEPTH / 10]
+  catchsql "
+    INSERT INTO t3b VALUES([expr ($SQLITE_MAX_TRIGGER_DEPTH * 2) - ($SQLITE_MAX_TRIGGER_DEPTH / 10) + 1]);
+  "
+} {0 {}}
+do_test triggerC-3.5.2 {
+  db eval {SELECT count(*), max(x), min(x) FROM t3b}
+} [list [expr $SQLITE_MAX_TRIGGER_DEPTH / 10] [expr $SQLITE_MAX_TRIGGER_DEPTH * 2] [expr ($SQLITE_MAX_TRIGGER_DEPTH * 2) - ($SQLITE_MAX_TRIGGER_DEPTH / 10) + 1]]
+
+do_test triggerC-3.5.3 {
+  catchsql "
+    DELETE FROM t3b;
+    INSERT INTO t3b VALUES([expr ($SQLITE_MAX_TRIGGER_DEPTH * 2) - ($SQLITE_MAX_TRIGGER_DEPTH / 10)]);
+  "
+} {1 {too many levels of trigger recursion}}
+do_test triggerC-3.5.4 {
+  db eval {SELECT count(*), max(x), min(x) FROM t3b}
+} {0 {} {}}
+
+do_test triggerC-3.6.1 {
+  sqlite3_limit db SQLITE_LIMIT_TRIGGER_DEPTH 1
+  catchsql "
+    INSERT INTO t3b VALUES([expr $SQLITE_MAX_TRIGGER_DEPTH * 2]);
+  "
+} {0 {}}
+do_test triggerC-3.6.2 {
+  db eval {SELECT count(*), max(x), min(x) FROM t3b}
+} [list 1 [expr $SQLITE_MAX_TRIGGER_DEPTH * 2] [expr $SQLITE_MAX_TRIGGER_DEPTH * 2]]
+
+do_test triggerC-3.6.3 {
+  catchsql "
+    DELETE FROM t3b;
+    INSERT INTO t3b VALUES([expr ($SQLITE_MAX_TRIGGER_DEPTH * 2) - 1]);
+  "
+} {1 {too many levels of trigger recursion}}
+do_test triggerC-3.6.4 {
+  db eval {SELECT count(*), max(x), min(x) FROM t3b}
+} {0 {} {}}
+sqlite3_limit db SQLITE_LIMIT_TRIGGER_DEPTH $SQLITE_MAX_TRIGGER_DEPTH
+
+
+#-----------------------------------------------------------------------
+# This next block of tests, triggerC-4.*, checks that affinity 
+# transformations and constraint processing is performed at the correct 
+# times relative to BEFORE and AFTER triggers.
+#
+# For an INSERT statement, for each row to be inserted:
+#
+#   1. Apply affinities to non-rowid values to be inserted.
+#   2. Fire BEFORE triggers.
+#   3. Process constraints.
+#   4. Insert new record.
+#   5. Fire AFTER triggers.
+#
+# If the value of the rowid field is to be automatically assigned, it is
+# set to -1 in the new.* record. Even if it is explicitly set to NULL
+# by the INSERT statement.
+#
+# For an UPDATE statement, for each row to be deleted:
+#
+#   1. Apply affinities to non-rowid values to be inserted.
+#   2. Fire BEFORE triggers.
+#   3. Process constraints.
+#   4. Insert new record.
+#   5. Fire AFTER triggers.
+#
+# For a DELETE statement, for each row to be deleted:
+#
+#   1. Fire BEFORE triggers.
+#   2. Remove database record.
+#   3. Fire AFTER triggers.
+#
+# When a numeric value that as an exact integer representation is stored
+# in a column with REAL affinity, it is actually stored as an integer.
+# These tests check that the typeof() such values is always 'real',
+# not 'integer'.
+#
+# triggerC-4.1.*: Check that affinity transformations are made before
+#                 triggers are invoked.
+#
+do_test triggerC-4.1.1 {
+  catchsql { DROP TABLE log }
+  catchsql { DROP TABLE t4 }
+  execsql {
+    CREATE TABLE log(t);
+    CREATE TABLE t4(a TEXT,b INTEGER,c REAL);
+    CREATE TRIGGER t4bi BEFORE INSERT ON t4 BEGIN
+      INSERT INTO log VALUES(new.rowid || ' ' || typeof(new.rowid) || ' ' ||
+                             new.a     || ' ' || typeof(new.a)     || ' ' ||
+                             new.b     || ' ' || typeof(new.b)     || ' ' ||
+                             new.c     || ' ' || typeof(new.c)
+      );
+    END;
+    CREATE TRIGGER t4ai AFTER INSERT ON t4 BEGIN
+      INSERT INTO log VALUES(new.rowid || ' ' || typeof(new.rowid) || ' ' ||
+                             new.a     || ' ' || typeof(new.a)     || ' ' ||
+                             new.b     || ' ' || typeof(new.b)     || ' ' ||
+                             new.c     || ' ' || typeof(new.c)
+      );
+    END;
+    CREATE TRIGGER t4bd BEFORE DELETE ON t4 BEGIN
+      INSERT INTO log VALUES(old.rowid || ' ' || typeof(old.rowid) || ' ' ||
+                             old.a     || ' ' || typeof(old.a)     || ' ' ||
+                             old.b     || ' ' || typeof(old.b)     || ' ' ||
+                             old.c     || ' ' || typeof(old.c)
+      );
+    END;
+    CREATE TRIGGER t4ad AFTER DELETE ON t4 BEGIN
+      INSERT INTO log VALUES(old.rowid || ' ' || typeof(old.rowid) || ' ' ||
+                             old.a     || ' ' || typeof(old.a)     || ' ' ||
+                             old.b     || ' ' || typeof(old.b)     || ' ' ||
+                             old.c     || ' ' || typeof(old.c)
+      );
+    END;
+    CREATE TRIGGER t4bu BEFORE UPDATE ON t4 BEGIN
+      INSERT INTO log VALUES(old.rowid || ' ' || typeof(old.rowid) || ' ' ||
+                             old.a     || ' ' || typeof(old.a)     || ' ' ||
+                             old.b     || ' ' || typeof(old.b)     || ' ' ||
+                             old.c     || ' ' || typeof(old.c)
+      );
+      INSERT INTO log VALUES(new.rowid || ' ' || typeof(new.rowid) || ' ' ||
+                             new.a     || ' ' || typeof(new.a)     || ' ' ||
+                             new.b     || ' ' || typeof(new.b)     || ' ' ||
+                             new.c     || ' ' || typeof(new.c)
+      );
+    END;
+    CREATE TRIGGER t4au AFTER UPDATE ON t4 BEGIN
+      INSERT INTO log VALUES(old.rowid || ' ' || typeof(old.rowid) || ' ' ||
+                             old.a     || ' ' || typeof(old.a)     || ' ' ||
+                             old.b     || ' ' || typeof(old.b)     || ' ' ||
+                             old.c     || ' ' || typeof(old.c)
+      );
+      INSERT INTO log VALUES(new.rowid || ' ' || typeof(new.rowid) || ' ' ||
+                             new.a     || ' ' || typeof(new.a)     || ' ' ||
+                             new.b     || ' ' || typeof(new.b)     || ' ' ||
+                             new.c     || ' ' || typeof(new.c)
+      );
+    END;
+  }
+} {}
+foreach {n insert log} {
+
+  2 { 
+   INSERT INTO t4 VALUES('1', '1', '1');
+   DELETE FROM t4;
+  } {
+    -1 integer 1 text 1 integer 1.0 real 
+     1 integer 1 text 1 integer 1.0 real
+     1 integer 1 text 1 integer 1.0 real 
+     1 integer 1 text 1 integer 1.0 real
+  }
+
+  3 { 
+   INSERT INTO t4(rowid,a,b,c) VALUES(45, 45, 45, 45);
+   DELETE FROM t4;
+  } {
+    45 integer 45 text 45 integer 45.0 real
+    45 integer 45 text 45 integer 45.0 real
+    45 integer 45 text 45 integer 45.0 real
+    45 integer 45 text 45 integer 45.0 real
+  }
+
+  4 { 
+   INSERT INTO t4(rowid,a,b,c) VALUES(-42.0, -42.0, -42.0, -42.0);
+   DELETE FROM t4;
+  } {
+    -42 integer -42.0 text -42 integer -42.0 real 
+    -42 integer -42.0 text -42 integer -42.0 real
+    -42 integer -42.0 text -42 integer -42.0 real 
+    -42 integer -42.0 text -42 integer -42.0 real
+  }
+
+  5 { 
+   INSERT INTO t4(rowid,a,b,c) VALUES(NULL, -42.4, -42.4, -42.4);
+   DELETE FROM t4;
+  } {
+    -1 integer -42.4 text -42.4 real -42.4 real
+     1 integer -42.4 text -42.4 real -42.4 real
+     1 integer -42.4 text -42.4 real -42.4 real
+     1 integer -42.4 text -42.4 real -42.4 real
+  }
+
+  6 { 
+   INSERT INTO t4 VALUES(7, 7, 7);
+   UPDATE t4 SET a=8, b=8, c=8;
+  } {
+    -1 integer 7 text 7 integer 7.0 real
+     1 integer 7 text 7 integer 7.0 real
+     1 integer 7 text 7 integer 7.0 real
+     1 integer 8 text 8 integer 8.0 real
+     1 integer 7 text 7 integer 7.0 real
+     1 integer 8 text 8 integer 8.0 real
+  }
+
+  7 { 
+   UPDATE t4 SET rowid=2;
+  } {
+     1 integer 8 text 8 integer 8.0 real
+     2 integer 8 text 8 integer 8.0 real
+     1 integer 8 text 8 integer 8.0 real
+     2 integer 8 text 8 integer 8.0 real
+  }
+
+  8 { 
+   UPDATE t4 SET a='9', b='9', c='9';
+  } {
+     2 integer 8 text 8 integer 8.0 real
+     2 integer 9 text 9 integer 9.0 real
+     2 integer 8 text 8 integer 8.0 real
+     2 integer 9 text 9 integer 9.0 real
+  }
+
+  9 { 
+   UPDATE t4 SET a='9.1', b='9.1', c='9.1';
+  } {
+     2 integer 9   text 9   integer 9.0 real
+     2 integer 9.1 text 9.1 real    9.1 real
+     2 integer 9   text 9   integer 9.0 real
+     2 integer 9.1 text 9.1 real    9.1 real
+  }
+} {
+  do_test triggerC-4.1.$n {
+    eval concat [execsql " 
+      DELETE FROM log;
+      $insert ; 
+      SELECT * FROM log ORDER BY rowid;
+    "]
+  } [join $log " "]
+} 
+
+#-------------------------------------------------------------------------
+# This block of tests, triggerC-5.*, test that DELETE triggers are fired
+# if a row is deleted as a result of OR REPLACE conflict resolution.
+#
+do_test triggerC-5.1.0 {
+  execsql {
+    DROP TABLE IF EXISTS t5;
+    CREATE TABLE t5(a INTEGER PRIMARY KEY, b);
+    CREATE UNIQUE INDEX t5i ON t5(b);
+    INSERT INTO t5 VALUES(1, 'a');
+    INSERT INTO t5 VALUES(2, 'b');
+    INSERT INTO t5 VALUES(3, 'c');
+
+    CREATE TABLE t5g(a, b, c);
+    CREATE TRIGGER t5t BEFORE DELETE ON t5 BEGIN
+      INSERT INTO t5g VALUES(old.a, old.b, (SELECT count(*) FROM t5));
+    END;
+  }
+} {}
+foreach {n dml t5g t5} {
+  1 "DELETE FROM t5 WHERE a=2"                        {2 b 3} {1 a 3 c}
+  2 "INSERT OR REPLACE INTO t5 VALUES(2, 'd')"        {2 b 3} {1 a 2 d 3 c}
+  3 "UPDATE OR REPLACE t5 SET a = 2 WHERE a = 3"      {2 b 3} {1 a 2 c}
+  4 "INSERT OR REPLACE INTO t5 VALUES(4, 'b')"        {2 b 3} {1 a 3 c 4 b}
+  5 "UPDATE OR REPLACE t5 SET b = 'b' WHERE b = 'c'"  {2 b 3} {1 a 3 b}
+  6 "INSERT OR REPLACE INTO t5 VALUES(2, 'c')"        {2 b 3 3 c 2} {1 a 2 c}
+  7 "UPDATE OR REPLACE t5 SET a=1, b='b' WHERE a = 3" {1 a 3 2 b 2} {1 b}
+} {
+  do_test triggerC-5.1.$n {
+    execsql "
+      BEGIN;
+        $dml ;
+        SELECT * FROM t5g ORDER BY rowid;
+        SELECT * FROM t5 ORDER BY rowid;
+      ROLLBACK;
+    "
+  } [concat $t5g $t5]
+}
+do_test triggerC-5.2.0 {
+  execsql {
+    DROP TRIGGER t5t;
+    CREATE TRIGGER t5t AFTER DELETE ON t5 BEGIN
+      INSERT INTO t5g VALUES(old.a, old.b, (SELECT count(*) FROM t5));
+    END;
+  }
+} {}
+foreach {n dml t5g t5} {
+  1 "DELETE FROM t5 WHERE a=2"                        {2 b 2} {1 a 3 c}
+  2 "INSERT OR REPLACE INTO t5 VALUES(2, 'd')"        {2 b 2} {1 a 2 d 3 c}
+  3 "UPDATE OR REPLACE t5 SET a = 2 WHERE a = 3"      {2 b 2} {1 a 2 c}
+  4 "INSERT OR REPLACE INTO t5 VALUES(4, 'b')"        {2 b 2} {1 a 3 c 4 b}
+  5 "UPDATE OR REPLACE t5 SET b = 'b' WHERE b = 'c'"  {2 b 2} {1 a 3 b}
+  6 "INSERT OR REPLACE INTO t5 VALUES(2, 'c')"        {2 b 2 3 c 1} {1 a 2 c}
+  7 "UPDATE OR REPLACE t5 SET a=1, b='b' WHERE a = 3" {1 a 2 2 b 1} {1 b}
+} {
+  do_test triggerC-5.2.$n {
+    execsql "
+      BEGIN;
+        $dml ;
+        SELECT * FROM t5g ORDER BY rowid;
+        SELECT * FROM t5 ORDER BY rowid;
+      ROLLBACK;
+    "
+  } [concat $t5g $t5]
+}
+do_test triggerC-5.3.0 {
+  execsql { PRAGMA recursive_triggers = off }
+} {}
+foreach {n dml t5g t5} {
+  1 "DELETE FROM t5 WHERE a=2"                        {2 b 2} {1 a 3 c}
+  2 "INSERT OR REPLACE INTO t5 VALUES(2, 'd')"        {} {1 a 2 d 3 c}
+  3 "UPDATE OR REPLACE t5 SET a = 2 WHERE a = 3"      {} {1 a 2 c}
+  4 "INSERT OR REPLACE INTO t5 VALUES(4, 'b')"        {} {1 a 3 c 4 b}
+  5 "UPDATE OR REPLACE t5 SET b = 'b' WHERE b = 'c'"  {} {1 a 3 b}
+  6 "INSERT OR REPLACE INTO t5 VALUES(2, 'c')"        {} {1 a 2 c}
+  7 "UPDATE OR REPLACE t5 SET a=1, b='b' WHERE a = 3" {} {1 b}
+} {
+  do_test triggerC-5.3.$n {
+    execsql "
+      BEGIN;
+        $dml ;
+        SELECT * FROM t5g ORDER BY rowid;
+        SELECT * FROM t5 ORDER BY rowid;
+      ROLLBACK;
+    "
+  } [concat $t5g $t5]
+}
+do_test triggerC-5.3.8 {
+  execsql { PRAGMA recursive_triggers = on }
+} {}
+
+#-------------------------------------------------------------------------
+# This block of tests, triggerC-6.*, tests that "PRAGMA recursive_triggers"
+# statements return the current value of the recursive triggers flag.
+#
+do_test triggerC-6.1 {
+  execsql { PRAGMA recursive_triggers }
+} {1}
+do_test triggerC-6.2 {
+  execsql { 
+    PRAGMA recursive_triggers = off;
+    PRAGMA recursive_triggers;
+  }
+} {0}
+do_test triggerC-6.3 {
+  execsql { 
+    PRAGMA recursive_triggers = on;
+    PRAGMA recursive_triggers;
+  }
+} {1}
+
+#-------------------------------------------------------------------------
+# Test some of the "undefined behaviour" associated with triggers. The
+# undefined behaviour occurs when a row being updated or deleted is 
+# manipulated by a BEFORE trigger.
+# 
+do_test triggerC-7.1 {
+  execsql {
+    CREATE TABLE t8(x);
+    CREATE TABLE t7(a, b);
+    INSERT INTO t7 VALUES(1, 2);
+    INSERT INTO t7 VALUES(3, 4);
+    INSERT INTO t7 VALUES(5, 6);
+    CREATE TRIGGER t7t BEFORE UPDATE ON t7 BEGIN
+      DELETE FROM t7 WHERE a = 1;
+    END;
+    CREATE TRIGGER t7ta AFTER UPDATE ON t7 BEGIN
+      INSERT INTO t8 VALUES('after fired ' || old.rowid || '->' || new.rowid);
+    END;
+  }
+} {}
+do_test triggerC-7.2 {
+  execsql {
+    BEGIN;
+      UPDATE t7 SET b=7 WHERE a = 5;
+      SELECT * FROM t7;
+      SELECT * FROM t8;
+    ROLLBACK;
+  }
+} {3 4 5 7 {after fired 3->3}}
+do_test triggerC-7.3 {
+  execsql {
+    BEGIN;
+      UPDATE t7 SET b=7 WHERE a = 1;
+      SELECT * FROM t7;
+      SELECT * FROM t8;
+    ROLLBACK;
+  }
+} {3 4 5 6}
+
+do_test triggerC-7.4 {
+  execsql {
+    DROP TRIGGER t7t;
+    CREATE TRIGGER t7t BEFORE UPDATE ON t7 WHEN (old.rowid!=1 OR new.rowid!=8)
+    BEGIN
+      UPDATE t7 set rowid = 8 WHERE rowid=1;
+    END;
+  }
+} {}
+do_test triggerC-7.5 {
+  execsql {
+    BEGIN;
+      UPDATE t7 SET b=7 WHERE a = 5;
+      SELECT rowid, * FROM t7;
+      SELECT * FROM t8;
+    ROLLBACK;
+  }
+} {2 3 4 3 5 7 8 1 2 {after fired 1->8} {after fired 3->3}}
+do_test triggerC-7.6 {
+  execsql {
+    BEGIN;
+      UPDATE t7 SET b=7 WHERE a = 1;
+      SELECT rowid, * FROM t7;
+      SELECT * FROM t8;
+    ROLLBACK;
+  }
+} {2 3 4 3 5 6 8 1 2 {after fired 1->8}}
+
+do_test triggerC-7.7 {
+  execsql {
+    DROP TRIGGER t7t;
+    DROP TRIGGER t7ta;
+    CREATE TRIGGER t7t BEFORE DELETE ON t7 BEGIN
+      UPDATE t7 set rowid = 8 WHERE rowid=1;
+    END;
+    CREATE TRIGGER t7ta AFTER DELETE ON t7 BEGIN
+      INSERT INTO t8 VALUES('after fired ' || old.rowid);
+    END;
+  }
+} {}
+do_test triggerC-7.8 {
+  execsql {
+    BEGIN;
+      DELETE FROM t7 WHERE a = 3;
+      SELECT rowid, * FROM t7;
+      SELECT * FROM t8;
+    ROLLBACK;
+  }
+} {3 5 6 8 1 2 {after fired 2}}
+do_test triggerC-7.9 {
+  execsql {
+    BEGIN;
+      DELETE FROM t7 WHERE a = 1;
+      SELECT rowid, * FROM t7;
+      SELECT * FROM t8;
+    ROLLBACK;
+  }
+} {2 3 4 3 5 6 8 1 2}
+
+# Ticket [e25d9ea771febc9c311928c1c01c3163dcb26643]
+# 
+do_test triggerC-9.1 {
+  execsql {
+    CREATE TABLE t9(a,b);
+    CREATE INDEX t9b ON t9(b);
+    INSERT INTO t9 VALUES(1,0);
+    INSERT INTO t9 VALUES(2,1);
+    INSERT INTO t9 VALUES(3,2);
+    INSERT INTO t9 SELECT a+3, a+2 FROM t9;
+    INSERT INTO t9 SELECT a+6, a+5 FROM t9;
+    SELECT a FROM t9 ORDER BY a;
+  }
+} {1 2 3 4 5 6 7 8 9 10 11 12}
+do_test triggerC-9.2 {
+  execsql {
+    CREATE TRIGGER t9r1 AFTER DELETE ON t9 BEGIN
+      DELETE FROM t9 WHERE b=old.a;
+    END;
+    DELETE FROM t9 WHERE b=4;
+    SELECT a FROM t9 ORDER BY a;
+  }
+} {1 2 3 4}
+
+# At one point (between versions 3.6.18 and 3.6.20 inclusive), an UPDATE 
+# that fired a BEFORE trigger that itself updated the same row as the 
+# statement causing it to fire was causing a strange side-effect: The 
+# values updated by the statement within the trigger were being overwritten 
+# by the values in the new.* array, even if those values were not 
+# themselves written by the parent UPDATE statement.
+#
+# Technically speaking this was not a bug. The SQLite documentation says
+# that if a BEFORE UPDATE or BEFORE DELETE trigger modifies or deletes the
+# row that the parent statement is operating on the results are undefined. 
+# But as of 3.6.21 behaviour is restored to the way it was in versions
+# 3.6.17 and earlier to avoid causing unnecessary difficulties.
+#
+do_test triggerC-10.1 {
+  execsql {
+    CREATE TABLE t10(a, updatecnt DEFAULT 0);
+    CREATE TRIGGER t10_bu BEFORE UPDATE OF a ON t10 BEGIN
+      UPDATE t10 SET updatecnt = updatecnt+1 WHERE rowid = old.rowid;
+    END;
+    INSERT INTO t10(a) VALUES('hello');
+  }
+
+  # Before the problem was fixed, table t10 would contain the tuple 
+  # (world, 0) after running the following script (because the value
+  # 1 written to column "updatecnt" was clobbered by the old value 0).
+  #
+  execsql {
+    UPDATE t10 SET a = 'world';
+    SELECT * FROM t10;
+  }
+} {world 1}
+
+do_test triggerC-10.2 {
+  execsql {
+    UPDATE t10 SET a = 'tcl', updatecnt = 5;
+    SELECT * FROM t10;
+  }
+} {tcl 5}
+
+do_test triggerC-10.3 {
+  execsql {
+    CREATE TABLE t11(
+      c1,   c2,  c3,  c4,  c5,  c6,  c7,  c8,  c9, c10,
+      c11, c12, c13, c14, c15, c16, c17, c18, c19, c20,
+      c21, c22, c23, c24, c25, c26, c27, c28, c29, c30,
+      c31, c32, c33, c34, c35, c36, c37, c38, c39, c40
+    );
+
+    CREATE TRIGGER t11_bu BEFORE UPDATE OF c1 ON t11 BEGIN
+      UPDATE t11 SET c31 = c31+1, c32=c32+1 WHERE rowid = old.rowid;
+    END;
+
+    INSERT INTO t11 VALUES(
+      1,   2,  3,  4,  5,  6,  7,  8,  9, 10,
+      11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
+      21, 22, 23, 24, 25, 26, 27, 28, 29, 30,
+      31, 32, 33, 34, 35, 36, 37, 38, 39, 40
+    );
+  }
+
+  # Before the problem was fixed, table t10 would contain the tuple 
+  # (world, 0) after running the following script (because the value
+  # 1 written to column "updatecnt" was clobbered by the old value 0).
+  #
+  execsql {
+    UPDATE t11 SET c4=35, c33=22, c1=5;
+    SELECT * FROM t11;
+  } 
+} {5 2 3 35 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 32 33 22 34 35 36 37 38 39 40}
+
+#-------------------------------------------------------------------------
+# Test that bug [371bab5d65] has been fixed. BEFORE INSERT and INSTEAD OF
+# INSERT triggers with the DEFAULT VALUES INSERT syntax.
+#
+do_test triggerC-11.0 {
+  catchsql { DROP TABLE log }
+  execsql  { CREATE TABLE log(a, b) }
+} {}
+
+foreach {testno tbl defaults} {
+  1 "CREATE TABLE t1(a, b)"                          {{} {}}
+  2 "CREATE TABLE t1(a DEFAULT 1, b DEFAULT 'abc')"  {1 abc}
+  3 "CREATE TABLE t1(a, b DEFAULT 4.5)"              {{} 4.5}
+} {
+  do_test triggerC-11.$testno.1 {
+    catchsql { DROP TABLE t1 }
+    execsql { DELETE FROM log }
+    execsql $tbl
+    execsql {
+      CREATE TRIGGER tt1 BEFORE INSERT ON t1 BEGIN 
+        INSERT INTO log VALUES(new.a, new.b);
+      END;
+      INSERT INTO t1 DEFAULT VALUES;
+      SELECT * FROM log;
+    }
+  } $defaults
+
+  do_test triggerC-11.$testno.2 {
+    execsql { DELETE FROM log }
+    execsql {
+      CREATE TRIGGER tt2 AFTER INSERT ON t1 BEGIN 
+        INSERT INTO log VALUES(new.a, new.b);
+      END;
+      INSERT INTO t1 DEFAULT VALUES;
+      SELECT * FROM log;
+    }
+  } [concat $defaults $defaults]
+
+  do_test triggerC-11.$testno.3 {
+    execsql { DROP TRIGGER tt1 }
+    execsql { DELETE FROM log }
+    execsql {
+      INSERT INTO t1 DEFAULT VALUES;
+      SELECT * FROM log;
+    }
+  } $defaults
+} 
+do_test triggerC-11.4 {
+  catchsql { DROP TABLE t2 }
+  execsql {
+    DELETE FROM log;
+    CREATE TABLE t2(a, b);
+    CREATE VIEW v2 AS SELECT * FROM t2;
+    CREATE TRIGGER tv2 INSTEAD OF INSERT ON v2 BEGIN
+      INSERT INTO log VALUES(new.a, new.b);
+    END;
+    INSERT INTO v2 DEFAULT VALUES;
+    SELECT a, b, a IS NULL, b IS NULL FROM log;
+  }
+} {{} {} 1 1}
+
+do_test triggerC-12.1 {
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+
+  execsql {
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, 2);
+    INSERT INTO t1 VALUES(3, 4);
+    INSERT INTO t1 VALUES(5, 6);
+    CREATE TRIGGER tr1 AFTER INSERT ON t1 BEGIN SELECT 1 ; END ;
+    SELECT count(*) FROM sqlite_master;
+  }
+} {2}
+do_test triggerC-12.2 {
+  db eval { SELECT * FROM t1 } {
+    if {$a == 3} { execsql { DROP TRIGGER tr1 } }
+  }
+  execsql { SELECT count(*) FROM sqlite_master }
+} {1}
+
+do_execsql_test triggerC-13.1 {
+  PRAGMA recursive_triggers = ON;
+  CREATE TABLE t12(a, b);
+  INSERT INTO t12 VALUES(1, 2);
+  CREATE TRIGGER tr12 AFTER UPDATE ON t12 BEGIN
+    UPDATE t12 SET a=new.a+1, b=new.b+1;
+  END;
+} {}
+do_catchsql_test triggerC-13.2 {
+  UPDATE t12 SET a=a+1, b=b+1;
+} {1 {too many levels of trigger recursion}}
+
+#-------------------------------------------------------------------------
+# The following tests seek to verify that constant values (i.e. literals)
+# are not factored out of loops within trigger programs. SQLite does
+# not factor constants out of loops within trigger programs as it may only
+# do so in code generated before the first table or index is opened. And
+# by the time a trigger program is coded, at least one table or index has
+# always been opened.
+#
+# At one point, due to a bug allowing constant factoring within triggers,
+# the following SQL would produce the wrong result.
+#
+set SQL {
+  CREATE TABLE t1(a, b, c);
+  CREATE INDEX i1 ON t1(a, c);
+  CREATE INDEX i2 ON t1(b, c);
+  INSERT INTO t1 VALUES(1, 2, 3);
+
+  CREATE TABLE t2(e, f);
+  CREATE INDEX i3 ON t2(e);
+  INSERT INTO t2 VALUES(1234567, 3);
+
+  CREATE TABLE empty(x);
+  CREATE TABLE not_empty(x);
+  INSERT INTO not_empty VALUES(2);
+
+  CREATE TABLE t4(x);
+  CREATE TABLE t5(g, h, i);
+
+  CREATE TRIGGER trig BEFORE INSERT ON t4 BEGIN
+    INSERT INTO t5 SELECT * FROM t1 WHERE 
+        (a IN (SELECT x FROM empty) OR b IN (SELECT x FROM not_empty)) 
+        AND c IN (SELECT f FROM t2 WHERE e=1234567);
+  END;
+
+  INSERT INTO t4 VALUES(0);
+  SELECT * FROM t5;
+}
+
+reset_db
+do_execsql_test triggerC-14.1 $SQL {1 2 3}
+reset_db
+optimization_control db factor-constants 0
+do_execsql_test triggerC-14.2 $SQL {1 2 3}
+
+#-------------------------------------------------------------------------
+# Check that table names used by trigger programs are dequoted exactly
+# once.
+#
+do_execsql_test 15.1.1 {
+  PRAGMA recursive_triggers = 1;
+  CREATE TABLE node(
+      id int not null primary key, 
+      pid int not null default 0 references node,
+      key varchar not null, 
+      path varchar default '',
+      unique(pid, key)
+      );
+  CREATE TRIGGER node_delete_referencing AFTER DELETE ON "node"
+    BEGIN
+    DELETE FROM "node" WHERE pid = old."id";
+  END;
+}
+do_execsql_test 15.1.2 {
+  INSERT INTO node(id, pid, key) VALUES(9, 0, 'test');
+  INSERT INTO node(id, pid, key) VALUES(90, 9, 'test1');
+  INSERT INTO node(id, pid, key) VALUES(900, 90, 'test2');
+  DELETE FROM node WHERE id=9;
+  SELECT * FROM node;
+}
+
+do_execsql_test 15.2.1 {
+  CREATE TABLE   x1  (x);
+
+  CREATE TABLE   x2  (a, b);
+  CREATE TABLE '"x2"'(a, b);
+
+  INSERT INTO x2 VALUES(1, 2);
+  INSERT INTO x2 VALUES(3, 4);
+  INSERT INTO '"x2"' SELECT * FROM x2;
+
+  CREATE TRIGGER x1ai AFTER INSERT ON x1 BEGIN
+    INSERT INTO """x2""" VALUES('x', 'y');
+    DELETE FROM """x2""" WHERE a=1;
+    UPDATE """x2""" SET b = 11 WHERE a = 3;
+  END;
+
+  INSERT INTO x1 VALUES('go!');
+}
+
+do_execsql_test 15.2.2 { SELECT * FROM x2;       } {1 2 3 4}
+do_execsql_test 15.2.3 { SELECT * FROM """x2"""; } {3 11 x y}
+
+#-------------------------------------------------------------------------
+# At one point queries such as the following were causing segfaults.
+#
+do_catchsql_test 16.1 {
+  SELECT raise(ABORT, 'msg') FROM sqlite_master 
+  UNION SELECT 1 
+  ORDER BY raise(IGNORE);
+} {1 {1st ORDER BY term does not match any column in the result set}}
+
+do_catchsql_test 16.2 {
+  SELECT count(*) FROM sqlite_master 
+  GROUP BY raise(IGNORE) 
+  HAVING raise(ABORT, 'msg');
+} {1 {RAISE() may only be used within a trigger-program}}
+
+#-------------------------------------------------------------------------
+# Datatype mismatch on IPK when there are BEFORE triggers.
+#
+do_execsql_test 17.0 {
+  CREATE TABLE xyz(x INTEGER PRIMARY KEY, y, z);
+  CREATE TRIGGER xyz_tr BEFORE INSERT ON xyz BEGIN
+    SELECT new.x;
+  END;
+}
+do_catchsql_test 17.1 {
+  INSERT INTO xyz VALUES('hello', 2, 3);
+} {1 {datatype mismatch}}
+
+
+finish_test
diff --git a/test/triggerD.test b/test/triggerD.test
new file mode 100644
index 0000000000000000000000000000000000000000..a5dd4bdd580467662d57f3ba759e76cd57db6dcc
--- /dev/null
+++ b/test/triggerD.test
@@ -0,0 +1,219 @@
+# 2009 December 29
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice', here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Verify that when columns named "rowid", "oid", and "_rowid_" appear
+# in a table as ordinary columns (not as the INTEGER PRIMARY KEY) then
+# the use of these columns in triggers will refer to the column and not
+# to the actual ROWID.  Ticket [34d2ae1c6d08b5271ba5e5592936d4a1d913ffe3]
+#
+# Also, verify that triggers created like this:
+#
+#    CREATE TRIGGER attached.trig AFTER INSERT ON attached.tab ...
+#
+# can be reparsed as a main database.  Ticket [d6ddba6706353915ceedc56b4e3]
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable {!trigger} {
+  finish_test
+  return
+}
+
+# Triggers on tables where the table has ordinary columns named
+# rowid, oid, and _rowid_.
+#
+do_test triggerD-1.1 {
+  db eval {
+    CREATE TABLE t1(rowid, oid, _rowid_, x);
+    CREATE TABLE log(a,b,c,d,e);
+    CREATE TRIGGER r1 BEFORE INSERT ON t1 BEGIN
+      INSERT INTO log VALUES('r1', new.rowid, new.oid, new._rowid_, new.x);
+    END;
+    CREATE TRIGGER r2 AFTER INSERT ON t1 BEGIN
+      INSERT INTO log VALUES('r2', new.rowid, new.oid, new._rowid_, new.x);
+    END;
+    CREATE TRIGGER r3 BEFORE UPDATE ON t1 BEGIN
+      INSERT INTO log VALUES('r3.old', old.rowid, old.oid, old._rowid_, old.x);
+      INSERT INTO log VALUES('r3.new', new.rowid, new.oid, new._rowid_, new.x);
+    END;
+    CREATE TRIGGER r4 AFTER UPDATE ON t1 BEGIN
+      INSERT INTO log VALUES('r4.old', old.rowid, old.oid, old._rowid_, old.x);
+      INSERT INTO log VALUES('r4.new', new.rowid, new.oid, new._rowid_, new.x);
+    END;
+    CREATE TRIGGER r5 BEFORE DELETE ON t1 BEGIN
+      INSERT INTO log VALUES('r5', old.rowid, old.oid, old._rowid_, old.x);
+    END;
+    CREATE TRIGGER r6 AFTER DELETE ON t1 BEGIN
+      INSERT INTO log VALUES('r6', old.rowid, old.oid, old._rowid_, old.x);
+    END;
+  }
+} {}
+do_test triggerD-1.2 {
+  db eval {
+    INSERT INTO t1 VALUES(100,200,300,400);
+    SELECT * FROM log
+  }
+} {r1 100 200 300 400 r2 100 200 300 400}
+do_test triggerD-1.3 {
+  db eval {
+    DELETE FROM log;
+    UPDATE t1 SET rowid=rowid+1;
+    SELECT * FROM log
+  }
+} {r3.old 100 200 300 400 r3.new 101 200 300 400 r4.old 100 200 300 400 r4.new 101 200 300 400}
+do_test triggerD-1.4 {
+  db eval {
+    DELETE FROM log;
+    DELETE FROM t1;
+    SELECT * FROM log
+  }
+} {r5 101 200 300 400 r6 101 200 300 400}
+
+# Triggers on tables where the table does not have ordinary columns named
+# rowid, oid, and _rowid_.
+#
+do_test triggerD-2.1 {
+  db eval {
+    DROP TABLE t1;
+    CREATE TABLE t1(w,x,y,z);
+    CREATE TRIGGER r1 BEFORE INSERT ON t1 BEGIN
+      INSERT INTO log VALUES('r1', new.rowid, new.oid, new._rowid_, new.x);
+    END;
+    CREATE TRIGGER r2 AFTER INSERT ON t1 BEGIN
+      INSERT INTO log VALUES('r2', new.rowid, new.oid, new._rowid_, new.x);
+    END;
+    CREATE TRIGGER r3 BEFORE UPDATE ON t1 BEGIN
+      INSERT INTO log VALUES('r3.old', old.rowid, old.oid, old._rowid_, old.x);
+      INSERT INTO log VALUES('r3.new', new.rowid, new.oid, new._rowid_, new.x);
+    END;
+    CREATE TRIGGER r4 AFTER UPDATE ON t1 BEGIN
+      INSERT INTO log VALUES('r4.old', old.rowid, old.oid, old._rowid_, old.x);
+      INSERT INTO log VALUES('r4.new', new.rowid, new.oid, new._rowid_, new.x);
+    END;
+    CREATE TRIGGER r5 BEFORE DELETE ON t1 BEGIN
+      INSERT INTO log VALUES('r5', old.rowid, old.oid, old._rowid_, old.x);
+    END;
+    CREATE TRIGGER r6 AFTER DELETE ON t1 BEGIN
+      INSERT INTO log VALUES('r6', old.rowid, old.oid, old._rowid_, old.x);
+    END;
+  }
+} {}
+do_test triggerD-2.2 {
+  db eval {
+    DELETE FROM log;
+    INSERT INTO t1 VALUES(100,200,300,400);
+    SELECT * FROM log;
+  }
+} {r1 -1 -1 -1 200 r2 1 1 1 200}
+do_test triggerD-2.3 {
+  db eval {
+    DELETE FROM log;
+    UPDATE t1 SET x=x+1;
+    SELECT * FROM log
+  }
+} {r3.old 1 1 1 200 r3.new 1 1 1 201 r4.old 1 1 1 200 r4.new 1 1 1 201}
+do_test triggerD-2.4 {
+  db eval {
+    DELETE FROM log;
+    DELETE FROM t1;
+    SELECT * FROM log
+  }
+} {r5 1 1 1 201 r6 1 1 1 201}
+
+
+###########################################################################
+#
+# Ticket [985771e1161200ae5eac3162686ea6711c035d08]:
+#
+# When both a main database table and a TEMP table have the same name,
+# and a main database trigge is created on the main table, the trigger
+# is incorrectly bound to the TEMP table. For example:
+#
+#   CREATE TABLE t1(x);
+#   CREATE TEMP TABLE t1(x);
+#   CREATE TABLE t2(z);
+#   CREATE TRIGGER main.r1 AFTER INSERT ON t1 BEGIN
+#     INSERT INTO t2 VALUES(10000 + new.x);
+#   END;
+#   INSERT INTO main.t1 VALUES(3);
+#   INSERT INTO temp.t1 VALUES(4);
+#   SELECT * FROM t2;
+# 
+# The r1 trigger fires when the value 4 is inserted into the temp.t1
+# table, rather than when value 3 is inserted into main.t1.
+#
+do_test triggerD-3.1 {
+  db eval {
+    CREATE TABLE t300(x);
+    CREATE TEMP TABLE t300(x);
+    CREATE TABLE t301(y);
+    CREATE TRIGGER main.r300 AFTER INSERT ON t300 BEGIN
+      INSERT INTO t301 VALUES(10000 + new.x);
+    END;
+    INSERT INTO main.t300 VALUES(3);
+    INSERT INTO temp.t300 VALUES(4);
+    SELECT * FROM t301;
+  }
+} {10003}
+do_test triggerD-3.2 {
+  db eval {
+    DELETE FROM t301;
+    CREATE TRIGGER temp.r301 AFTER INSERT ON t300 BEGIN
+      INSERT INTO t301 VALUES(20000 + new.x);
+    END;
+    INSERT INTO main.t300 VALUES(3);
+    INSERT INTO temp.t300 VALUES(4);
+    SELECT * FROM t301;
+  }
+} {10003 20004}
+
+
+#############################################################################
+# 
+# Ticket [d6ddba6706353915ceedc56b4e3e72ecb4d77ba4]
+#
+# The following syntax really should not be allowed:
+#
+#    CREATE TRIGGER xyz.trig BEFORE UPDATE ON xyz.tab BEGIN ...
+#
+# But a long-standing bug does allow it.  And the "xyz.tab" slips into
+# the sqlite_master table.  We cannot fix the bug simply by disallowing
+# "xyz.tab" since that could break legacy applications.  We have to 
+# fix the system so that the "xyz." on "xyz.tab" is ignored.
+# Verify that this is the case.
+#
+do_test triggerD-4.1 {
+  db close
+  forcedelete test.db test2.db
+  sqlite3 db test.db
+  db eval {
+    CREATE TABLE t1(x);
+    ATTACH 'test2.db' AS db2;
+    CREATE TABLE db2.t2(y);
+    CREATE TABLE db2.log(z);
+    CREATE TRIGGER db2.trig AFTER INSERT ON db2.t2 BEGIN
+      INSERT INTO log(z) VALUES(new.y);
+    END;
+    INSERT INTO t2 VALUES(123);
+    SELECT * FROM log;
+  }
+} {123}
+do_test triggerD-4.2 {
+  sqlite3 db2 test2.db
+  db2 eval {
+    INSERT INTO t2 VALUES(234);
+    SELECT * FROM log;
+  }
+} {123 234}
+db2 close
+
+finish_test
diff --git a/test/triggerE.test b/test/triggerE.test
new file mode 100644
index 0000000000000000000000000000000000000000..de4b068582ccee00b7b83a471196fb5201a1b813
--- /dev/null
+++ b/test/triggerE.test
@@ -0,0 +1,114 @@
+# 2009 December 29
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice', here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file tests the effects of SQL variable references embedded in
+# triggers. If the user attempts to create such a trigger, it is an
+# error. However, if an existing trigger definition is read from
+# the sqlite_master table, the variable reference always evaluates
+# to NULL.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable {!trigger} {
+  finish_test
+  return
+}
+set testprefix triggerE
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b);
+  CREATE TABLE t2(c, d);
+  CREATE TABLE t3(e, f);
+}
+
+# forcedelete test.db2
+# do_execsql_test 1.1 {
+#   ATTACH 'test.db2' AS aux;
+#   CREATE TABLE aux.t4(x);
+#   INSERT INTO aux.t4 VALUES(5);
+# 
+#   CREATE TRIGGER tr1 AFTER INSERT ON t1 WHEN new.a IN (SELECT x FROM aux.t4)
+#   BEGIN
+#     SELECT 1;
+#   END;
+# } 
+# do_execsql_test 1.2 { INSERT INTO t1 VALUES(1,1); }
+# do_execsql_test 1.3 { INSERT INTO t1 VALUES(5,5); }
+
+#-------------------------------------------------------------------------
+# Attempt to create various triggers that use bound variables.
+#
+set errmsg "trigger cannot use variables"
+foreach {tn defn} {
+  1 { AFTER INSERT ON t1 WHEN new.a = ? BEGIN SELECT 1; END; }
+  2 { BEFORE DELETE ON t1 BEGIN SELECT ?; END; }
+  3 { BEFORE DELETE ON t1 BEGIN SELECT * FROM (SELECT * FROM (SELECT ?)); END; }
+  5 { BEFORE DELETE ON t1 BEGIN SELECT * FROM t2 GROUP BY ?; END; }
+  6 { BEFORE DELETE ON t1 BEGIN SELECT * FROM t2 LIMIT ?; END; }
+  7 { BEFORE DELETE ON t1 BEGIN SELECT * FROM t2 ORDER BY ?; END; }
+  8 { BEFORE UPDATE ON t1 BEGIN UPDATE t2 SET c = ?; END; }
+  9 { BEFORE UPDATE ON t1 BEGIN UPDATE t2 SET c = 1 WHERE d = ?; END; }
+ 10 { AFTER INSERT ON t1 BEGIN SELECT * FROM pragma_stats(?); END; }
+ 11 { BEFORE INSERT ON t1 BEGIN 
+      INSERT INTO t1 SELECT max(b) OVER(ORDER BY $1) FROM t1; END }
+} {
+  catchsql {drop trigger tr1}
+  do_catchsql_test 1.1.$tn "CREATE TRIGGER tr1 $defn" [list 1 $errmsg]
+  do_catchsql_test 1.2.$tn "CREATE TEMP TRIGGER tr1 $defn" [list 1 $errmsg]
+}
+
+#-------------------------------------------------------------------------
+# Test that variable references within trigger definitions loaded from 
+# the sqlite_master table are automatically converted to NULL.
+#
+sqlite3_db_config db DEFENSIVE 0
+do_execsql_test 2.1 {
+  PRAGMA writable_schema = 1;
+  INSERT INTO sqlite_master VALUES('trigger', 'tr1', 't1', 0,
+    'CREATE TRIGGER tr1 AFTER INSERT ON t1 BEGIN 
+        INSERT INTO t2 VALUES(?1, ?2); 
+     END'
+  );
+
+  INSERT INTO sqlite_master VALUES('trigger', 'tr2', 't3', 0,
+    'CREATE TRIGGER tr2 AFTER INSERT ON t3 WHEN ?1 IS NULL BEGIN
+        UPDATE t2 SET c=d WHERE c IS ?2;
+     END'
+  );
+}
+db close
+sqlite3 db test.db
+
+do_execsql_test 2.2.1 {
+  INSERT INTO t1 VALUES(1, 2);
+  SELECT * FROM t2;
+} {{} {}}
+do_test 2.2.2 {
+  set one 3
+  execsql {
+    DELETE FROM t2;
+    INSERT INTO t1 VALUES($one, ?1);
+    SELECT * FROM t2;
+  }
+} {{} {}}
+do_execsql_test 2.2.3 { SELECT * FROM t1 } {1 2 3 3}
+
+do_execsql_test 2.3 {
+  DELETE FROM t2;
+  INSERT INTO t2 VALUES('x', 'y');
+  INSERT INTO t2 VALUES(NULL, 'z');
+  INSERT INTO t3 VALUES(1, 2);
+  SELECT * FROM t3;
+  SELECT * FROM t2;
+} {1 2 x y z z}
+
+finish_test
diff --git a/test/triggerF.test b/test/triggerF.test
new file mode 100644
index 0000000000000000000000000000000000000000..2e3e35e3b2dcb1bc74607bfd2f2d8e90190c82ac
--- /dev/null
+++ b/test/triggerF.test
@@ -0,0 +1,71 @@
+# 2017 January 4
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice', here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix triggerF
+ifcapable {!trigger} {
+  finish_test
+  return
+}
+
+
+foreach {tn sql log} {
+  1 {} {}
+
+  2 { 
+    CREATE TRIGGER trd AFTER DELETE ON t1 BEGIN
+      INSERT INTO log VALUES(old.a || old.b || (SELECT count(*) FROM t1));
+    END;
+  } {1one2 2two1 3three1}
+
+  3 { 
+    CREATE TRIGGER trd BEFORE DELETE ON t1 BEGIN
+      INSERT INTO log VALUES(old.a || old.b || (SELECT count(*) FROM t1));
+    END;
+  } {1one3 2two2 3three2}
+
+  4 { 
+    CREATE TRIGGER tr1 AFTER DELETE ON t1 BEGIN
+      INSERT INTO log VALUES(old.a || old.b || (SELECT count(*) FROM t1));
+    END;
+    CREATE TRIGGER tr2 BEFORE DELETE ON t1 BEGIN
+      INSERT INTO log VALUES(old.a || old.b || (SELECT count(*) FROM t1));
+    END;
+  } {1one3 1one2 2two2 2two1 3three2 3three1}
+
+} {
+  reset_db
+  do_execsql_test 1.$tn.0 {
+    PRAGMA recursive_triggers = on;
+    CREATE TABLE t1(a INT PRIMARY KEY, b) WITHOUT ROWID;
+    CREATE TABLE log(t);
+  }
+  
+  execsql $sql
+
+  do_execsql_test 1.$tn.1 {
+    INSERT INTO t1 VALUES(1, 'one');
+    INSERT INTO t1 VALUES(2, 'two');
+    INSERT INTO t1 VALUES(3, 'three');
+
+    DELETE FROM t1 WHERE a=1;
+    INSERT OR REPLACE INTO t1 VALUES(2, 'three');
+    UPDATE OR REPLACE t1 SET a=3 WHERE a=2;
+  }
+
+  do_execsql_test 1.$tn.2 {
+    SELECT * FROM log ORDER BY rowid;
+  } $log
+}
+
+finish_test
diff --git a/test/triggerG.test b/test/triggerG.test
new file mode 100644
index 0000000000000000000000000000000000000000..8cf20b5ec9cf6523774751e47bd3ee568138b634
--- /dev/null
+++ b/test/triggerG.test
@@ -0,0 +1,94 @@
+# 2017-03-24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice', here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix triggerG
+ifcapable {!trigger} {
+  finish_test
+  return
+}
+
+# Test cases for ticket 
+# https://www.sqlite.org/src/tktview/06796225f59c057cd120f
+#
+# The OP_Once opcode was not working correctly for recursive triggers.
+#
+do_execsql_test 100 {
+  PRAGMA recursive_triggers = 1;
+  
+  CREATE TABLE t1(a);
+  CREATE INDEX i1 ON t1(a);
+  INSERT INTO t1(a) VALUES(0),(2),(3),(8),(9);
+  CREATE TABLE t2(b);
+  CREATE TABLE t3(c);
+  
+  CREATE TRIGGER tr AFTER INSERT ON t3 BEGIN
+    INSERT INTO t3 SELECT new.c+1 WHERE new.c<5;
+    INSERT INTO t2 SELECT new.c*100+a FROM t1 WHERE a IN (1, 2, 3, 4);
+  END;
+  
+  INSERT INTO t3 VALUES(2);
+  SELECT c FROM t3 ORDER BY c;;
+} {2 3 4 5}
+do_execsql_test 110 {
+  SELECT b FROM t2 ORDER BY b;
+} {202 203 302 303 402 403 502 503}
+
+do_execsql_test 200 {
+  DELETE FROM t1;
+  INSERT INTO t1(a) VALUES(0),(2),(3),(8),(9);
+  DELETE FROM t2;
+  DELETE FROM t3;
+  DROP TRIGGER tr;
+  CREATE TRIGGER tr AFTER INSERT ON t3 BEGIN
+    INSERT INTO t3 SELECT new.c+1 WHERE new.c<5;
+    INSERT INTO t2 SELECT new.c*10000+xx.a*100+yy.a
+                     FROM t1 AS xx, t1 AS yy
+                    WHERE xx.a IN (1,2,3,4)
+                      AND yy.a IN (2,3,4,5);
+  END;
+
+  INSERT INTO t3 VALUES(2);
+  SELECT b FROM t2 ORDER BY b;
+} {20202 20203 20302 20303 30202 30203 30302 30303 40202 40203 40302 40303 50202 50203 50302 50303}
+
+# At one point the following was causing an assert() to fail.
+#
+do_execsql_test 300 {
+  CREATE TABLE t4(x);
+  CREATE TRIGGER tr4 AFTER INSERT ON t4 BEGIN
+    SELECT 0x2147483648e0e0099 AS y WHERE y;
+  END;
+}
+
+do_catchsql_test 310 {
+  INSERT INTO t4 VALUES(1);
+} {1 {hex literal too big: 0x2147483648e0e0099}}
+
+#-------------------------------------------------------------------------
+# 
+do_execsql_test 400 {
+  CREATE VIEW v0(a) AS SELECT 1234;
+  CREATE TRIGGER t0001 INSTEAD OF DELETE ON v0 BEGIN
+    SELECT old.a;
+  END;
+}
+do_execsql_test 405 {
+  SELECT a FROM v0;
+} {1234}
+do_execsql_test 410 {
+  DELETE FROM v0;
+}
+
+
+finish_test
diff --git a/test/triggerupfrom.test b/test/triggerupfrom.test
new file mode 100644
index 0000000000000000000000000000000000000000..a731045c4ef8a35a9e3d5aaba9741655e1fc2ef9
--- /dev/null
+++ b/test/triggerupfrom.test
@@ -0,0 +1,173 @@
+# 2020 July 14
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix triggerupfrom
+
+do_execsql_test 1.0 {
+  CREATE TABLE map(k, v);
+  INSERT INTO map VALUES(1, 'one'), (2, 'two'), (3, 'three'), (4, 'four');
+
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+
+  CREATE TRIGGER tr AFTER INSERT ON t1 BEGIN
+    UPDATE t1 SET c = v FROM map WHERE k=new.a AND a=new.a;
+  END;
+}
+
+do_execsql_test 1.1 {
+  INSERT INTO t1(a) VALUES(1);
+}
+
+do_execsql_test 1.2 {
+  SELECT a, c FROM t1 ORDER BY a;
+} {1 one}
+
+do_execsql_test 1.3 {
+  INSERT INTO t1(a) VALUES(2), (3), (4), (5);
+  SELECT a, c FROM t1 ORDER BY a;
+} {1 one 2 two 3 three 4 four 5 {}}
+
+forcedelete test.db2
+do_execsql_test 2.0 {
+  ATTACH 'test.db2' AS aux;
+  CREATE TABLE aux.t3(x, y);
+  INSERT INTO aux.t3 VALUES('x', 'y');
+}
+
+do_catchsql_test 2.1 {
+  CREATE TRIGGER tr2 AFTER INSERT ON t1 BEGIN
+    UPDATE t1 SET b = y FROM aux.t3 WHERE k=new.a;
+  END;
+} {1 {trigger tr2 cannot reference objects in database aux}}
+
+do_execsql_test 2.2 {
+  CREATE TEMP TRIGGER tr2 AFTER INSERT ON t1 BEGIN
+    UPDATE t1 SET b = y FROM aux.t3 WHERE a=new.a;
+  END;
+  INSERT INTO t1(a) VALUES(10), (20);
+  SELECT * FROM t1;
+} {
+  1 {} one 
+  2 {} two 
+  3 {} three 
+  4 {} four 
+  5 {} {} 
+  10 y {} 
+  20 y {}
+}
+
+do_execsql_test 2.3 {
+  CREATE TABLE link(f, t);
+  INSERT INTO link VALUES(5, 2), (20, 10), (2, 1);
+  CREATE TRIGGER tr3 BEFORE DELETE ON t1 BEGIN
+    UPDATE t1 SET b=coalesce(old.b,old.c) FROM main.link WHERE a=t AND old.a=f;
+  END;
+  DELETE FROM t1 WHERE a=2;
+  SELECT * FROM t1;
+} {
+  1 two one 
+  3 {} three 
+  4 {} four 
+  5 {} {} 
+  10 y {} 
+  20 y {}
+}
+
+db close
+sqlite3 db ""
+do_catchsql_test 2.4 {
+  ATTACH 'test.db' AS yyy;
+  SELECT * FROM t1;
+} {1 {malformed database schema (tr3) - trigger tr3 cannot reference objects in database main}}
+
+#-------------------------------------------------------------------------
+reset_db
+forcedelete test.db2
+do_execsql_test 3.0 {
+  CREATE TABLE mmm(x, y);
+  INSERT INTO mmm VALUES(1, 'one');
+  INSERT INTO mmm VALUES(2, 'two');
+  INSERT INTO mmm VALUES(3, 'three');
+
+  ATTACH 'test.db2' AS aux;
+  CREATE TABLE aux.t1(a, b);
+  CREATE TABLE aux.mmm(x, y);
+  INSERT INTO aux.mmm VALUES(1, 'ONE');
+  INSERT INTO aux.mmm VALUES(2, 'TWO');
+  INSERT INTO aux.mmm VALUES(3, 'THREE');
+
+  CREATE TRIGGER aux.ttt AFTER INSERT ON t1 BEGIN
+    UPDATE t1 SET b=y FROM mmm WHERE x=new.a AND a=new.a;
+  END;
+  
+  INSERT INTO t1(a) VALUES (2);
+  SELECT * FROM t1;
+} {2 TWO}
+
+#-------------------------------------------------------------------------
+# Test that INSTEAD OF UPDATE triggers on views work with UPDATE...FROM
+# statements. Including, if the library is built with ENABLE_HIDDEN_COLUMNS, 
+# that they work correctly on views with hidden columns.
+#
+reset_db
+do_execsql_test 4.0 {
+  CREATE TABLE t1(k, a, b);
+  INSERT INTO t1 VALUES('a', 1, 'one');
+  INSERT INTO t1 VALUES('b', 2, 'two');
+  INSERT INTO t1 VALUES('c', 3, 'three');
+  INSERT INTO t1 VALUES('d', 4, 'four');
+
+  CREATE TABLE log(x);
+  CREATE VIEW v1 AS SELECT k, a, b AS __hidden__b FROM t1;
+  CREATE TRIGGER tr1 INSTEAD OF UPDATE ON v1 BEGIN
+    INSERT INTO log VALUES(
+      '('||old.a||','||old.__hidden__b||')->('||new.a||','||new.__hidden__b||')'
+    );
+  END;
+}
+
+ifcapable hiddencolumns {
+  do_execsql_test 4.1-hc-enabled {
+    SELECT * FROM v1
+  } {a 1 b 2 c 3 d 4}
+} else {
+  do_execsql_test 4.1-hc-disabled {
+    SELECT * FROM v1
+  } {a 1 one b 2 two c 3 three d 4 four}
+}
+
+do_execsql_test 4.2 {
+  UPDATE v1 SET a='xyz' WHERE k IN ('a', 'c');
+  SELECT * FROM log;
+  DELETE FROM log;
+} {
+  (1,one)->(xyz,one)
+  (3,three)->(xyz,three)
+}
+
+do_execsql_test 4.3 {
+  CREATE TABLE map(k, v);
+  INSERT INTO map VALUES('b', 'twelve');
+  INSERT INTO map VALUES('d', 'fourteen');
+  UPDATE v1 SET a=map.v FROM map WHERE v1.k=map.k;
+  SELECT * FROM log;
+  DELETE FROM log;
+} {
+  (2,two)->(twelve,two)
+  (4,four)->(fourteen,four)
+}
+
+
+
+finish_test
diff --git a/test/trustschema1.test b/test/trustschema1.test
new file mode 100644
index 0000000000000000000000000000000000000000..8edaf80515b299e8d1605ec844ff66ec9cde3667
--- /dev/null
+++ b/test/trustschema1.test
@@ -0,0 +1,262 @@
+# 2020-01-08
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+# Test cases for managing execution of code snippets found in untrusted
+# schemas.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix trustschema1
+
+# edgy functions used in generated columns
+#
+proc f1 {x} {return $x}
+do_test 1.100 {
+  db function f1 -innocuous -deterministic f1
+  db function f2 -deterministic f1
+  db function f3 -directonly -deterministic f1
+  db eval {
+    CREATE TABLE t1(a, b AS (f1(a+1)), c AS (f2(a+2)));
+    INSERT INTO t1 VALUES(100),(200);
+  }
+} {}
+do_catchsql_test 1.110 {
+  SELECT a, b, c FROM t1;
+} {0 {100 101 102 200 201 202}}
+do_execsql_test 1.120 {
+  PRAGMA trusted_schema=OFF;
+} {}
+do_catchsql_test 1.130 {
+  SELECT a, b FROM t1;
+} {0 {100 101 200 201}}
+do_catchsql_test 1.140 {
+  SELECT a, b, c FROM t1;
+} {1 {unsafe use of f2()}}
+do_catchsql_test 1.150 {
+  PRAGMA trusted_schema=ON;
+  DROP TABLE t1;
+  CREATE TABLE t1(a, b AS (f3(a+1)));
+} {1 {unsafe use of f3()}}
+do_execsql_test 1.160 {
+  PRAGMA trusted_schema=OFF;
+  CREATE TEMP TABLE temp1(a,b AS (f3(a+1)));
+  INSERT INTO temp1(a) VALUES(100),(900);
+  SELECT * FROM temp1;
+} {100 101 900 901}
+
+# edgy functions used in CHECK constraints
+#
+do_catchsql_test 1.200 {
+  PRAGMA trusted_schema=ON;
+  CREATE TABLE t2(a,b,c,CHECK(f3(c)==c));
+} {1 {unsafe use of f3()}}
+do_catchsql_test 1.210 {
+  PRAGMA trusted_schema=Off;
+  CREATE TABLE t2(a,b,c,CHECK(f2(c)==c));
+} {1 {unsafe use of f2()}}
+do_catchsql_test 1.211 {
+  PRAGMA trusted_schema=On;
+  CREATE TABLE t2(a,b,c,CHECK(f2(c)==c));
+} {0 {}}
+do_catchsql_test 1.220 {
+  INSERT INTO t2 VALUES(1,2,3);
+  SELECT * FROM t2;
+} {0 {1 2 3}}
+do_catchsql_test 1.230 {
+  PRAGMA trusted_schema=off;
+  INSERT INTO t2 VALUES(4,5,6);
+} {1 {unsafe use of f2()}}
+do_execsql_test 1.231 {
+  SELECT * FROM t2;
+} {1 2 3}
+# Ok to put as many edgy functions as you want in a
+# TEMP table.
+do_execsql_test 1.240 {
+  PRAGMA trusted_schema=OFF;
+  CREATE TEMP TABLE temp2(a, b, CHECK(f3(b)==b));
+  INSERT INTO temp2(a,b) VALUES(1,2),('x','y');
+  SELECT * FROM temp2;
+} {1 2 x y}
+
+# edgy functions used in DEFAULT constraints
+#
+do_catchsql_test 1.300 {
+  CREATE TABLE t3(a,b DEFAULT(f2(25)));
+} {0 {}}
+do_catchsql_test 1.310 {
+  PRAGMA trusted_schema=Off;
+  INSERT INTO t3(a) VALUES(1);
+} {1 {unsafe use of f2()}}
+do_catchsql_test 1.311 {
+  INSERT INTO t3(a,b) VALUES(1,2);
+} {0 {}}
+do_execsql_test 1.320 {
+  CREATE TEMP TABLE temp3(a, b DEFAULT(f3(31)));
+  INSERT INTO temp3(a) VALUES(22);
+  SELECT * FROM temp3;
+} {22 31}
+
+# edgy functions used in partial indexes.
+#
+do_execsql_test 1.400 {
+  CREATE TABLE t4(a,b,c);
+  INSERT INTO t4 VALUES(1,2,3),('a','b','c'),(4,'d',0);
+  SELECT * FROM t4;
+  CREATE TEMP TABLE temp4(a,b,c);
+  INSERT INTO temp4 SELECT * FROM t4;
+} {1 2 3 a b c 4 d 0}
+do_catchsql_test 1.410 {
+  CREATE INDEX t4a ON t4(a) WHERE f3(c);
+} {1 {unsafe use of f3()}}
+do_catchsql_test 1.420 {
+  PRAGMA trusted_schema=OFF;
+  CREATE INDEX t4a ON t4(a) WHERE f2(c);
+} {1 {unsafe use of f2()}}
+do_execsql_test 1.421 {
+  CREATE INDEX t4a ON t4(a) WHERE f1(c);
+  SELECT a FROM t4 WHERE f1(c) ORDER BY a;
+} {1}
+do_execsql_test 1.430 {
+  PRAGMA trusted_schema=ON;
+  CREATE INDEX t4b ON t4(b) WHERE f2(c);
+  SELECT b FROM t4 WHERE f2(c) ORDER BY b;
+} {2}
+do_execsql_test 1.440 {
+  PRAGMA trusted_schema=OFF;
+  CREATE INDEX temp4a ON temp4(a) WHERE f3(c);
+  SELECT a FROM temp4 WHERE f2(c) ORDER BY a;
+} {1}
+
+# edgy functions used in index expressions
+#
+do_execsql_test 1.500 {
+  CREATE TABLE t5(a,b,c);
+  INSERT INTO t5 VALUES(1,2,3),(4,5,6),(7,0,-3);
+  SELECT * FROM t5;
+  CREATE TEMP TABLE temp5(a,b,c);
+  INSERT INTO temp5 SELECT * FROM t5;
+} {1 2 3 4 5 6 7 0 -3}
+do_catchsql_test 1.510 {
+  CREATE INDEX t5x1 ON t5(a+f3(b));
+} {1 {unsafe use of f3()}}
+do_catchsql_test 1.520 {
+  PRAGMA trusted_schema=OFF;
+  CREATE INDEX t5x1 ON t5(a+f2(b));
+} {1 {unsafe use of f2()}}
+do_execsql_test 1.521 {
+  CREATE INDEX t5x1 ON t5(a+f1(b));
+  SELECT * FROM t5 INDEXED BY t5x1 WHERE a+f1(b)=3;
+} {1 2 3}
+do_execsql_test 1.530 {
+  PRAGMA trusted_schema=ON;
+  CREATE INDEX t5x2 ON t5(b+f2(c));
+  SELECT * FROM t5 INDEXED BY t5x2 WHERE b+f2(c)=11;
+} {4 5 6}
+do_execsql_test 1.540 {
+  PRAGMA trusted_schema=OFF;
+  CREATE INDEX temp5x1 ON temp5(a+f3(b));
+  SELECT * FROM temp5 INDEXED BY temp5x1 WHERE a+f3(b)=7;
+} {7 0 -3}
+
+# edgy functions in VIEWs
+#
+reset_db
+db function f1 -innocuous -deterministic f1
+db function f2 -deterministic f1
+db function f3 -directonly -deterministic f1
+do_execsql_test 2.100 {
+  CREATE TABLE t1(a,b,c);
+  INSERT INTO t1 VALUES(1,2,3),(100,50,75),(-11,22,-33);
+  CREATE VIEW v1a AS SELECT f3(a+b) FROM t1;
+  SELECT f3(a+b) FROM t1;
+} {3 150 11}
+do_catchsql_test 2.110 {
+  PRAGMA trusted_schema=ON;
+  SELECT * FROM v1a;
+} {1 {unsafe use of f3()}}
+do_catchsql_test 2.111 {
+  PRAGMA trusted_schema=OFF;
+  SELECT * FROM v1a;
+} {1 {unsafe use of f3()}}
+do_execsql_test 2.120 {
+  DROP VIEW v1a;
+  CREATE TEMP VIEW v1a AS SELECT f3(a+b) FROM t1;
+  SELECT * FROM v1a;
+} {3 150 11}
+do_execsql_test 2.130 {
+  CREATE VIEW v1b AS SELECT f2(b+c) FROM t1;
+  SELECT f2(b+c) FROM t1;
+} {5 125 -11}
+do_catchsql_test 2.140 {
+  PRAGMA trusted_schema=ON;
+  SELECT * FROM v1b;
+} {0 {5 125 -11}}
+do_catchsql_test 2.141 {
+  PRAGMA trusted_schema=OFF;
+  SELECT * FROM v1b;
+} {1 {unsafe use of f2()}}
+do_execsql_test 2.150 {
+  DROP VIEW v1b;
+  CREATE TEMP VIEW v1b AS SELECT f2(b+c) FROM t1;
+  SELECT * FROM v1b;
+} {5 125 -11}
+
+# edgy functions inside of triggers
+#
+do_execsql_test 3.100 {
+  DELETE FROM t1;
+  CREATE TABLE t2(x);
+  CREATE TRIGGER r1 AFTER INSERT ON t1 BEGIN
+    INSERT INTO t2(x) SELECT f3(new.a);
+  END;
+} {}
+do_catchsql_test 3.110 {
+  INSERT INTO t1 VALUES(7,6,5);
+} {1 {unsafe use of f3()}}
+do_execsql_test 3.111 {
+  SELECT * FROM t1;
+  SELECT * FROM t2;
+} {}
+
+do_execsql_test 3.120 {
+  DROP TRIGGER r1;
+  CREATE TRIGGER r1 AFTER INSERT ON t1 BEGIN
+    INSERT INTO t2(x) SELECT f2(new.a)+100;
+  END;
+  PRAGMA trusted_schema=ON;
+  INSERT INTO t1 VALUES(7,6,5);
+  SELECT * FROM t1, t2;
+} {7 6 5 107}
+do_catchsql_test 3.130 {
+  DELETE FROM t1;
+  DELETE FROM t2;
+  PRAGMA trusted_schema=OFF;
+  INSERT INTO t1 VALUES(7,6,5);
+} {1 {unsafe use of f2()}}
+do_execsql_test 3.131 {
+  SELECT * FROM t1;
+  SELECT * FROM t2;
+} {}
+
+# 2023-01-09 https://sqlite.org/forum/forumpost/c88a671ad083d153
+#
+do_execsql_test 4.1 {
+  PRAGMA trusted_schema=OFF;
+  CREATE VIEW test41(x) AS SELECT json_extract('{"a":123}','$.a');
+  SELECT * FROM test41;
+} 123
+do_execsql_test 4.2 {
+  PRAGMA trusted_schema=ON;
+  SELECT * FROM test41;
+} 123
+
+finish_test
diff --git a/test/tt3_checkpoint.c b/test/tt3_checkpoint.c
new file mode 100644
index 0000000000000000000000000000000000000000..ec9d0727e6f39e0c76db13a3ba38e8446af7ab08
--- /dev/null
+++ b/test/tt3_checkpoint.c
@@ -0,0 +1,148 @@
+/*
+** 2011-02-02
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file is part of the test program "threadtest3". Despite being a C
+** file it is not compiled separately, but included by threadtest3.c using
+** the #include directive normally used with header files.
+**
+** This file contains the implementation of test cases:
+**
+**     checkpoint_starvation_1
+**     checkpoint_starvation_2
+*/
+
+/*
+** Both test cases involve 1 writer/checkpointer thread and N reader threads.
+** 
+** Each reader thread performs a series of read transactions, one after 
+** another. Each read transaction lasts for 100 ms.
+**
+** The writer writes transactions as fast as possible. It uses a callback
+** registered with sqlite3_wal_hook() to try to keep the WAL-size limited to 
+** around 50 pages.
+**
+** In test case checkpoint_starvation_1, the auto-checkpoint uses 
+** SQLITE_CHECKPOINT_PASSIVE. In checkpoint_starvation_2, it uses RESTART.
+** The expectation is that in the first case the WAL file will grow very 
+** large, and in the second will be limited to the 50 pages or thereabouts.
+** However, the overall transaction throughput will be lower for 
+** checkpoint_starvation_2, as every checkpoint will block for up to 200 ms
+** waiting for readers to clear.
+*/
+
+/* Frame limit used by the WAL hook for these tests. */
+#define CHECKPOINT_STARVATION_FRAMELIMIT 50
+
+/* Duration in ms of each read transaction */
+#define CHECKPOINT_STARVATION_READMS    100
+
+struct CheckpointStarvationCtx {
+  int eMode;
+  int nMaxFrame;
+};
+typedef struct CheckpointStarvationCtx CheckpointStarvationCtx;
+
+static int checkpoint_starvation_walhook(
+  void *pCtx, 
+  sqlite3 *db, 
+  const char *zDb, 
+  int nFrame
+){
+  CheckpointStarvationCtx *p = (CheckpointStarvationCtx *)pCtx;
+  if( nFrame>p->nMaxFrame ){
+    p->nMaxFrame = nFrame;
+  }
+  if( nFrame>=CHECKPOINT_STARVATION_FRAMELIMIT ){
+    sqlite3_wal_checkpoint_v2(db, zDb, p->eMode, 0, 0);
+  }
+  return SQLITE_OK;
+}
+
+static char *checkpoint_starvation_reader(int iTid, void *pArg){
+  Error err = {0};
+  Sqlite db = {0};
+
+  opendb(&err, &db, "test.db", 0);
+  while( !timetostop(&err) ){
+    i64 iCount1, iCount2;
+    sql_script(&err, &db, "BEGIN");
+    iCount1 = execsql_i64(&err, &db, "SELECT count(x) FROM t1");
+    sqlite3_sleep(CHECKPOINT_STARVATION_READMS);
+    iCount2 = execsql_i64(&err, &db, "SELECT count(x) FROM t1");
+    sql_script(&err, &db, "COMMIT");
+
+    if( iCount1!=iCount2 ){
+      test_error(&err, "Isolation failure - %lld %lld", iCount1, iCount2);
+    }
+  }
+  closedb(&err, &db);
+
+  print_and_free_err(&err);
+  return 0;
+}
+
+static void checkpoint_starvation_main(int nMs, CheckpointStarvationCtx *p){
+  Error err = {0};
+  Sqlite db = {0};
+  Threadset threads = {0};
+  int nInsert = 0;
+  int i;
+
+  opendb(&err, &db, "test.db", 1);
+  sql_script(&err, &db, 
+      "PRAGMA page_size = 1024;"
+      "PRAGMA journal_mode = WAL;"
+      "CREATE TABLE t1(x);"
+  );
+
+  setstoptime(&err, nMs);
+
+  for(i=0; i<4; i++){
+    launch_thread(&err, &threads, checkpoint_starvation_reader, 0);
+    sqlite3_sleep(CHECKPOINT_STARVATION_READMS/4);
+  }
+
+  sqlite3_wal_hook(db.db, checkpoint_starvation_walhook, (void *)p);
+  while( !timetostop(&err) ){
+    sql_script(&err, &db, "INSERT INTO t1 VALUES(randomblob(1200))");
+    nInsert++;
+  }
+
+  printf(" Checkpoint mode  : %s\n",
+      p->eMode==SQLITE_CHECKPOINT_PASSIVE ? "PASSIVE" : "RESTART"
+  );
+  printf(" Peak WAL         : %d frames\n", p->nMaxFrame);
+  printf(" Transaction count: %d transactions\n", nInsert);
+
+  join_all_threads(&err, &threads);
+  closedb(&err, &db);
+  print_and_free_err(&err);
+}
+
+static void checkpoint_starvation_1(int nMs){
+  Error err = {0};
+  CheckpointStarvationCtx ctx = { SQLITE_CHECKPOINT_PASSIVE, 0 };
+  checkpoint_starvation_main(nMs, &ctx);
+  if( ctx.nMaxFrame<(CHECKPOINT_STARVATION_FRAMELIMIT*10) ){
+    test_error(&err, "WAL failed to grow - %d frames", ctx.nMaxFrame);
+  }
+  print_and_free_err(&err);
+}
+
+static void checkpoint_starvation_2(int nMs){
+  Error err = {0};
+  CheckpointStarvationCtx ctx = { SQLITE_CHECKPOINT_RESTART, 0 };
+  checkpoint_starvation_main(nMs, &ctx);
+  if( ctx.nMaxFrame>CHECKPOINT_STARVATION_FRAMELIMIT+10 ){
+    test_error(&err, "WAL grew too large - %d frames", ctx.nMaxFrame);
+  }
+  print_and_free_err(&err);
+}
diff --git a/test/tt3_index.c b/test/tt3_index.c
new file mode 100644
index 0000000000000000000000000000000000000000..62f06ade4aac194eda4d0a965a8d0109ea675593
--- /dev/null
+++ b/test/tt3_index.c
@@ -0,0 +1,74 @@
+/*
+** 2014 December 9
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+**     create_drop_index_1
+*/
+
+
+static char *create_drop_index_thread(int iTid, void *pArg){
+  Error err = {0};                /* Error code and message */
+  Sqlite db = {0};                /* SQLite database connection */
+
+  while( !timetostop(&err) ){
+    opendb(&err, &db, "test.db", 0);
+
+    sql_script(&err, &db, 
+      "DROP INDEX IF EXISTS i1;"
+      "DROP INDEX IF EXISTS i2;"
+      "DROP INDEX IF EXISTS i3;"
+      "DROP INDEX IF EXISTS i4;"
+
+      "CREATE INDEX IF NOT EXISTS i1 ON t11(a);"
+      "CREATE INDEX IF NOT EXISTS i2 ON t11(b);"
+      "CREATE INDEX IF NOT EXISTS i3 ON t11(c);"
+      "CREATE INDEX IF NOT EXISTS i4 ON t11(d);"
+
+      "SELECT * FROM t11 ORDER BY a;"
+      "SELECT * FROM t11 ORDER BY b;"
+      "SELECT * FROM t11 ORDER BY c;"
+      "SELECT * FROM t11 ORDER BY d;"
+    );
+    clear_error(&err, SQLITE_LOCKED);
+
+    closedb(&err, &db);
+  }
+
+  print_and_free_err(&err);
+  return sqlite3_mprintf("ok");
+}
+
+static void create_drop_index_1(int nMs){
+  Error err = {0};
+  Sqlite db = {0};
+  Threadset threads = {0};
+
+  opendb(&err, &db, "test.db", 1);
+  sql_script(&err, &db, 
+     "CREATE TABLE t11(a, b, c, d);"
+     "WITH data(x) AS (SELECT 1 UNION ALL SELECT x+1 FROM data WHERE x<100) "
+     "INSERT INTO t11 SELECT x,x,x,x FROM data;"
+  );
+  closedb(&err, &db);
+
+  setstoptime(&err, nMs);
+
+  sqlite3_enable_shared_cache(1);
+  launch_thread(&err, &threads, create_drop_index_thread, 0);
+  launch_thread(&err, &threads, create_drop_index_thread, 0);
+  launch_thread(&err, &threads, create_drop_index_thread, 0);
+  launch_thread(&err, &threads, create_drop_index_thread, 0);
+  launch_thread(&err, &threads, create_drop_index_thread, 0);
+
+  join_all_threads(&err, &threads);
+  sqlite3_enable_shared_cache(0);
+  print_and_free_err(&err);
+}
diff --git a/test/tt3_lookaside1.c b/test/tt3_lookaside1.c
new file mode 100644
index 0000000000000000000000000000000000000000..e785e7998baa958c70d36ba1c144009681f9fee2
--- /dev/null
+++ b/test/tt3_lookaside1.c
@@ -0,0 +1,99 @@
+/*
+** 2014 December 9
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+**     lookaside1
+*/
+
+/*
+** The test in this file attempts to expose a specific race condition
+** that is suspected to exist at time of writing.
+*/
+
+static char *lookaside1_thread_reader(int iTid, void *pArg){
+  Error err = {0};                /* Error code and message */
+  Sqlite db = {0};                /* SQLite database connection */
+
+  opendb(&err, &db, "test.db", 0);
+
+  while( !timetostop(&err) ){
+    sqlite3_stmt *pStmt = 0;
+    int rc;
+
+    sqlite3_prepare_v2(db.db, "SELECT 1 FROM t1", -1, &pStmt, 0);
+    while( sqlite3_step(pStmt)==SQLITE_ROW ){
+      execsql(&err, &db, "SELECT length(x||y||z) FROM t2");
+    }
+    rc = sqlite3_finalize(pStmt);
+    if( err.rc==SQLITE_OK && rc!=SQLITE_OK ){
+      sqlite_error(&err, &db, "finalize");
+    }
+  }
+
+  closedb(&err, &db);
+  print_and_free_err(&err);
+  return sqlite3_mprintf("ok");
+}
+
+static char *lookaside1_thread_writer(int iTid, void *pArg){
+  Error err = {0};                /* Error code and message */
+  Sqlite db = {0};                /* SQLite database connection */
+
+  opendb(&err, &db, "test.db", 0);
+
+  do{
+    sql_script(&err, &db, 
+      "BEGIN;"
+        "UPDATE t3 SET i=i+1 WHERE x=1;"
+      "ROLLBACK;"
+    );
+  }while( !timetostop(&err) );
+
+  closedb(&err, &db);
+  print_and_free_err(&err);
+  return sqlite3_mprintf("ok");
+}
+
+
+static void lookaside1(int nMs){
+  Error err = {0};
+  Sqlite db = {0};
+  Threadset threads = {0};
+
+  opendb(&err, &db, "test.db", 1);
+  sql_script(&err, &db, 
+     "CREATE TABLE t1(x PRIMARY KEY) WITHOUT ROWID;"
+     "WITH data(x,y) AS ("
+     "  SELECT 1, quote(randomblob(750)) UNION ALL "
+     "  SELECT x*2, y||y FROM data WHERE x<5) "
+     "INSERT INTO t1 SELECT y FROM data;"
+
+     "CREATE TABLE t3(x PRIMARY KEY,i) WITHOUT ROWID;"
+     "INSERT INTO t3 VALUES(1, 1);"
+
+     "CREATE TABLE t2(x,y,z);"
+     "INSERT INTO t2 VALUES(randomblob(50), randomblob(50), randomblob(50));"
+  );
+  closedb(&err, &db);
+
+  setstoptime(&err, nMs);
+
+  sqlite3_enable_shared_cache(1);
+  launch_thread(&err, &threads, lookaside1_thread_reader, 0);
+  launch_thread(&err, &threads, lookaside1_thread_reader, 0);
+  launch_thread(&err, &threads, lookaside1_thread_reader, 0);
+  launch_thread(&err, &threads, lookaside1_thread_reader, 0);
+  launch_thread(&err, &threads, lookaside1_thread_reader, 0);
+  launch_thread(&err, &threads, lookaside1_thread_writer, 0);
+  join_all_threads(&err, &threads);
+  sqlite3_enable_shared_cache(0);
+  print_and_free_err(&err);
+}
diff --git a/test/tt3_shared.c b/test/tt3_shared.c
new file mode 100644
index 0000000000000000000000000000000000000000..5bdadd1e03f0d541ea002407a1a64b6d76f7093b
--- /dev/null
+++ b/test/tt3_shared.c
@@ -0,0 +1,55 @@
+/*
+** 2020 September 5
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+**
+*/
+
+
+/*
+*/
+static char *shared_thread1(int iTid, void *pArg){
+  Error err = {0};                /* Error code and message */
+
+  while( !timetostop(&err) ){
+    Sqlite db = {0};              /* SQLite database connection */
+    opendb(&err, &db, "test.db", 0);
+    sql_script(&err, &db, "SELECT * FROM t1");
+    closedb(&err, &db);
+  }
+  print_and_free_err(&err);
+  return sqlite3_mprintf("done!");
+}
+
+
+static void shared1(int nMs){
+  Error err = {0};
+  Sqlite db = {0};              /* SQLite database connection */
+  Threadset threads = {0};
+  int ii;
+
+  opendb(&err, &db, "test.db", 1);
+  sql_script(&err, &db, "CREATE TABLE t1(x)");
+  closedb(&err, &db);
+
+  setstoptime(&err, nMs);
+  sqlite3_enable_shared_cache(1);
+
+  for(ii=0; ii<5; ii++){
+    launch_thread(&err, &threads, shared_thread1, 0);
+  }
+
+  join_all_threads(&err, &threads);
+  sqlite3_enable_shared_cache(0);
+
+  print_and_free_err(&err);
+}
+
diff --git a/test/tt3_stress.c b/test/tt3_stress.c
new file mode 100644
index 0000000000000000000000000000000000000000..be917b732040d23163a0c9ea9ecfc2e171696a84
--- /dev/null
+++ b/test/tt3_stress.c
@@ -0,0 +1,364 @@
+/*
+** 2014 December 9
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+**
+*/
+
+
+/*
+** Thread 1. CREATE and DROP a table.
+*/
+static char *stress_thread_1(int iTid, void *pArg){
+  Error err = {0};                /* Error code and message */
+  Sqlite db = {0};                /* SQLite database connection */
+
+  opendb(&err, &db, "test.db", 0);
+  while( !timetostop(&err) ){
+    sql_script(&err, &db, "CREATE TABLE IF NOT EXISTS t1(a PRIMARY KEY, b)");
+    clear_error(&err, SQLITE_LOCKED);
+    sql_script(&err, &db, "DROP TABLE IF EXISTS t1");
+    clear_error(&err, SQLITE_LOCKED);
+  }
+  closedb(&err, &db);
+  print_and_free_err(&err);
+  return sqlite3_mprintf("ok");
+}
+
+/*
+** Thread 2. Open and close database connections.
+*/
+static char *stress_thread_2(int iTid, void *pArg){
+  Error err = {0};                /* Error code and message */
+  Sqlite db = {0};                /* SQLite database connection */
+  while( !timetostop(&err) ){
+    opendb(&err, &db, "test.db", 0);
+    sql_script(&err, &db, "SELECT * FROM sqlite_schema;");
+    clear_error(&err, SQLITE_LOCKED);
+    closedb(&err, &db);
+  }
+  print_and_free_err(&err);
+  return sqlite3_mprintf("ok");
+}
+
+/*
+** Thread 3. Attempt many small SELECT statements.
+*/
+static char *stress_thread_3(int iTid, void *pArg){
+  Error err = {0};                /* Error code and message */
+  Sqlite db = {0};                /* SQLite database connection */
+
+  int i1 = 0;
+  int i2 = 0;
+
+  opendb(&err, &db, "test.db", 0);
+  while( !timetostop(&err) ){
+    sql_script(&err, &db, "SELECT * FROM t1 ORDER BY a;");
+    i1++;
+    if( err.rc ) i2++;
+    clear_error(&err, SQLITE_LOCKED);
+    clear_error(&err, SQLITE_ERROR);
+  }
+  closedb(&err, &db);
+  print_and_free_err(&err);
+  return sqlite3_mprintf("read t1 %d/%d attempts", i2, i1);
+}
+
+/*
+** Thread 5. Attempt INSERT statements.
+*/
+static char *stress_thread_4(int iTid, void *pArg){
+  Error err = {0};                /* Error code and message */
+  Sqlite db = {0};                /* SQLite database connection */
+  int i1 = 0;
+  int i2 = 0;
+  int iArg = PTR2INT(pArg);
+
+  opendb(&err, &db, "test.db", 0);
+  while( !timetostop(&err) ){
+    if( iArg ){
+      closedb(&err, &db);
+      opendb(&err, &db, "test.db", 0);
+    }
+    sql_script(&err, &db, 
+        "WITH loop(i) AS (SELECT 1 UNION ALL SELECT i+1 FROM loop LIMIT 200) "
+        "INSERT INTO t1 VALUES(randomblob(60), randomblob(60));"
+    );
+    i1++;
+    if( err.rc ) i2++;
+    clear_error(&err, SQLITE_LOCKED);
+    clear_error(&err, SQLITE_ERROR);
+  }
+  closedb(&err, &db);
+  print_and_free_err(&err);
+  return sqlite3_mprintf("wrote t1 %d/%d attempts", i2, i1);
+}
+
+/*
+** Thread 6. Attempt DELETE operations.
+*/
+static char *stress_thread_5(int iTid, void *pArg){
+  Error err = {0};                /* Error code and message */
+  Sqlite db = {0};                /* SQLite database connection */
+  int iArg = PTR2INT(pArg);
+
+  int i1 = 0;
+  int i2 = 0;
+
+  opendb(&err, &db, "test.db", 0);
+  while( !timetostop(&err) ){
+    i64 i = (i1 % 4);
+    if( iArg ){
+      closedb(&err, &db);
+      opendb(&err, &db, "test.db", 0);
+    }
+    execsql(&err, &db, "DELETE FROM t1 WHERE (rowid % 4)==:i", &i);
+    i1++;
+    if( err.rc ) i2++;
+    clear_error(&err, SQLITE_LOCKED);
+  }
+  closedb(&err, &db);
+  print_and_free_err(&err);
+  return sqlite3_mprintf("deleted from t1 %d/%d attempts", i2, i1);
+}
+
+
+static void stress1(int nMs){
+  Error err = {0};
+  Threadset threads = {0};
+
+  setstoptime(&err, nMs);
+  sqlite3_enable_shared_cache(1);
+
+  launch_thread(&err, &threads, stress_thread_1, 0);
+  launch_thread(&err, &threads, stress_thread_1, 0);
+
+  launch_thread(&err, &threads, stress_thread_2, 0);
+  launch_thread(&err, &threads, stress_thread_2, 0);
+
+  launch_thread(&err, &threads, stress_thread_3, 0);
+  launch_thread(&err, &threads, stress_thread_3, 0);
+
+  launch_thread(&err, &threads, stress_thread_4, 0);
+  launch_thread(&err, &threads, stress_thread_4, 0);
+
+  launch_thread(&err, &threads, stress_thread_5, 0);
+  launch_thread(&err, &threads, stress_thread_5, (void*)1);
+
+  join_all_threads(&err, &threads);
+  sqlite3_enable_shared_cache(0);
+
+  print_and_free_err(&err);
+}
+
+/**************************************************************************
+***************************************************************************
+** Start of test case "stress2"
+*/
+
+
+
+/*
+** 1.  CREATE TABLE statements.
+** 2.  DROP TABLE statements.
+** 3.  Small SELECT statements.
+** 4.  Big SELECT statements.
+** 5.  Small INSERT statements.
+** 6.  Big INSERT statements.
+** 7.  Small UPDATE statements.
+** 8.  Big UPDATE statements.
+** 9.  Small DELETE statements.
+** 10. Big DELETE statements.
+** 11. VACUUM.
+** 14. Integrity-check.
+** 17. Switch the journal mode from delete to wal and back again.
+** 19. Open and close database connections rapidly.
+*/
+
+#define STRESS2_TABCNT 5          /* count1 in SDS test */
+
+#define STRESS2_COUNT2 200        /* count2 in SDS test */
+#define STRESS2_COUNT3  57        /* count2 in SDS test */
+
+static void stress2_workload1(Error *pErr, Sqlite *pDb, int i){
+  int iTab = (i % (STRESS2_TABCNT-1)) + 1;
+  sql_script_printf(pErr, pDb, 
+      "CREATE TABLE IF NOT EXISTS t%d(x PRIMARY KEY, y, z);", iTab
+  );
+}
+
+static void stress2_workload2(Error *pErr, Sqlite *pDb, int i){
+  int iTab = (i % (STRESS2_TABCNT-1)) + 1;
+  sql_script_printf(pErr, pDb, "DROP TABLE IF EXISTS t%d;", iTab);
+}
+
+static void stress2_workload3(Error *pErr, Sqlite *pDb, int i){
+  sql_script(pErr, pDb, "SELECT * FROM t0 WHERE z = 'small'");
+}
+
+static void stress2_workload4(Error *pErr, Sqlite *pDb, int i){
+  sql_script(pErr, pDb, "SELECT * FROM t0 WHERE z = 'big'");
+}
+
+static void stress2_workload5(Error *pErr, Sqlite *pDb, int i){
+  sql_script(pErr, pDb,
+      "INSERT INTO t0 VALUES(hex(random()), hex(randomblob(200)), 'small');"
+  );
+}
+
+static void stress2_workload6(Error *pErr, Sqlite *pDb, int i){
+  sql_script(pErr, pDb,
+      "INSERT INTO t0 VALUES(hex(random()), hex(randomblob(57)), 'big');"
+  );
+}
+
+static void stress2_workload7(Error *pErr, Sqlite *pDb, int i){
+  sql_script_printf(pErr, pDb,
+      "UPDATE t0 SET y = hex(randomblob(200)) "
+      "WHERE x LIKE hex((%d %% 5)) AND z='small';"
+      ,i
+  );
+}
+static void stress2_workload8(Error *pErr, Sqlite *pDb, int i){
+  sql_script_printf(pErr, pDb,
+      "UPDATE t0 SET y = hex(randomblob(57)) "
+      "WHERE x LIKE hex(%d %% 5) AND z='big';"
+      ,i
+  );
+}
+
+static void stress2_workload9(Error *pErr, Sqlite *pDb, int i){
+  sql_script_printf(pErr, pDb,
+      "DELETE FROM t0 WHERE x LIKE hex(%d %% 5) AND z='small';", i
+  );
+}
+static void stress2_workload10(Error *pErr, Sqlite *pDb, int i){
+  sql_script_printf(pErr, pDb,
+      "DELETE FROM t0 WHERE x LIKE hex(%d %% 5) AND z='big';", i
+  );
+}
+
+static void stress2_workload11(Error *pErr, Sqlite *pDb, int i){
+  sql_script(pErr, pDb, "VACUUM");
+}
+
+static void stress2_workload14(Error *pErr, Sqlite *pDb, int i){
+  sql_script(pErr, pDb, "PRAGMA integrity_check");
+}
+
+static void stress2_workload17(Error *pErr, Sqlite *pDb, int i){
+  sql_script_printf(pErr, pDb, 
+      "PRAGMA journal_mode = %q", (i%2) ? "delete" : "wal"
+  );
+}
+
+static char *stress2_workload19(int iTid, void *pArg){
+  Error err = {0};                /* Error code and message */
+  Sqlite db = {0};                /* SQLite database connection */
+  const char *zDb = (const char*)pArg;
+  while( !timetostop(&err) ){
+    opendb(&err, &db, zDb, 0);
+    sql_script(&err, &db, "SELECT * FROM sqlite_schema;");
+    clear_error(&err, SQLITE_LOCKED);
+    closedb(&err, &db);
+  }
+  print_and_free_err(&err);
+  return sqlite3_mprintf("ok");
+}
+
+
+typedef struct Stress2Ctx Stress2Ctx;
+struct Stress2Ctx {
+  const char *zDb;
+  void (*xProc)(Error*, Sqlite*, int);
+};
+
+static char *stress2_thread_wrapper(int iTid, void *pArg){
+  Stress2Ctx *pCtx = (Stress2Ctx*)pArg;
+  Error err = {0};                /* Error code and message */
+  Sqlite db = {0};                /* SQLite database connection */
+  int i1 = 0;
+  int i2 = 0;
+
+  while( !timetostop(&err) ){
+    int cnt;
+    opendb(&err, &db, pCtx->zDb, 0);
+    for(cnt=0; err.rc==SQLITE_OK && cnt<STRESS2_TABCNT; cnt++){
+      pCtx->xProc(&err, &db, i1);
+      i2 += (err.rc==SQLITE_OK);
+      clear_error(&err, SQLITE_LOCKED);
+      i1++;
+    }
+    closedb(&err, &db);
+  }
+
+  print_and_free_err(&err);
+  return sqlite3_mprintf("ok %d/%d", i2, i1);
+}
+
+static void stress2_launch_thread_loop(
+  Error *pErr,                    /* IN/OUT: Error code */
+  Threadset *pThreads,            /* Thread set */
+  const char *zDb,                /* Database name */
+  void (*x)(Error*,Sqlite*,int)   /* Run this until error or timeout */
+){
+  Stress2Ctx *pCtx = sqlite3_malloc(sizeof(Stress2Ctx));
+  pCtx->zDb = zDb;
+  pCtx->xProc = x;
+  launch_thread(pErr, pThreads, stress2_thread_wrapper, (void*)pCtx);
+}
+
+static void stress2(int nMs){
+  struct Stress2Task {
+    void (*x)(Error*,Sqlite*,int);
+  } aTask[] = {
+    { stress2_workload1 },
+    { stress2_workload2 },
+    { stress2_workload3 },
+    { stress2_workload4 },
+    { stress2_workload5 },
+    { stress2_workload6 },
+    { stress2_workload7 },
+    { stress2_workload8 },
+    { stress2_workload9 },
+    { stress2_workload10 },
+    { stress2_workload11 },
+    { stress2_workload14 },
+    { stress2_workload17 },
+  };
+  const char *zDb = "test.db";
+
+  int i;
+  Error err = {0};
+  Sqlite db = {0};
+  Threadset threads = {0};
+
+  /* To make sure the db file is empty before commencing */
+  opendb(&err, &db, zDb, 1);
+  sql_script(&err, &db, 
+      "CREATE TABLE IF NOT EXISTS t0(x PRIMARY KEY, y, z);"
+      "CREATE INDEX IF NOT EXISTS i0 ON t0(y);"
+  );
+  closedb(&err, &db);
+
+  setstoptime(&err, nMs);
+  sqlite3_enable_shared_cache(1);
+
+  for(i=0; i<sizeof(aTask)/sizeof(aTask[0]); i++){
+    stress2_launch_thread_loop(&err, &threads, zDb, aTask[i].x);
+  }
+  launch_thread(&err, &threads, stress2_workload19, (void*)zDb);
+  launch_thread(&err, &threads, stress2_workload19, (void*)zDb);
+
+  join_all_threads(&err, &threads);
+  sqlite3_enable_shared_cache(0);
+  print_and_free_err(&err);
+}
diff --git a/test/tt3_vacuum.c b/test/tt3_vacuum.c
new file mode 100644
index 0000000000000000000000000000000000000000..c41a6b487d1465d3c54cb4e35dedf13791607c21
--- /dev/null
+++ b/test/tt3_vacuum.c
@@ -0,0 +1,90 @@
+/*
+** 2014 December 9
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** This file contains multi-threaded tests that use shared-cache and 
+** the VACUUM command.
+**
+** Tests:
+**
+**     vacuum1
+**
+*/
+
+
+static char *vacuum1_thread_writer(int iTid, void *pArg){
+  Error err = {0};                /* Error code and message */
+  Sqlite db = {0};                /* SQLite database connection */
+  i64 i = 0;
+
+  opendb(&err, &db, "test.db", 0);
+  while( !timetostop(&err) ){
+    i++;
+
+    /* Insert lots of rows. Then delete some. */
+    execsql(&err, &db, 
+        "WITH loop(i) AS (SELECT 1 UNION ALL SELECT i+1 FROM loop WHERE i<100) "
+        "INSERT INTO t1 SELECT randomblob(50), randomblob(2500) FROM loop"
+    );
+
+    /* Delete lots of rows */
+    execsql(&err, &db, "DELETE FROM t1 WHERE rowid = :i", &i);
+    clear_error(&err, SQLITE_LOCKED);
+
+    /* Select the rows */
+    execsql(&err, &db, "SELECT * FROM t1 ORDER BY x");
+    clear_error(&err, SQLITE_LOCKED);
+  }
+
+  closedb(&err, &db);
+  print_and_free_err(&err);
+  return sqlite3_mprintf("ok");
+}
+
+static char *vacuum1_thread_vacuumer(int iTid, void *pArg){
+  Error err = {0};                /* Error code and message */
+  Sqlite db = {0};                /* SQLite database connection */
+  opendb(&err, &db, "test.db", 0);
+
+  do{
+    sql_script(&err, &db, "VACUUM");
+    clear_error(&err, SQLITE_LOCKED);
+  }while( !timetostop(&err) );
+
+  closedb(&err, &db);
+  print_and_free_err(&err);
+  return sqlite3_mprintf("ok");
+}
+
+static void vacuum1(int nMs){
+  Error err = {0};
+  Sqlite db = {0};
+  Threadset threads = {0};
+
+  opendb(&err, &db, "test.db", 1);
+  sql_script(&err, &db, 
+     "CREATE TABLE t1(x PRIMARY KEY, y BLOB);"
+     "CREATE INDEX i1 ON t1(y);"
+  );
+  closedb(&err, &db);
+
+  setstoptime(&err, nMs);
+
+  sqlite3_enable_shared_cache(1);
+  launch_thread(&err, &threads, vacuum1_thread_writer, 0);
+  launch_thread(&err, &threads, vacuum1_thread_writer, 0);
+  launch_thread(&err, &threads, vacuum1_thread_writer, 0);
+  launch_thread(&err, &threads, vacuum1_thread_vacuumer, 0);
+  join_all_threads(&err, &threads);
+  sqlite3_enable_shared_cache(0);
+
+  print_and_free_err(&err);
+}
diff --git a/test/types.test b/test/types.test
new file mode 100644
index 0000000000000000000000000000000000000000..62a8efca82d9b17e45d368ccac43bff187812a37
--- /dev/null
+++ b/test/types.test
@@ -0,0 +1,325 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. Specfically
+# it tests that the different storage classes (integer, real, text etc.)
+# all work correctly.
+#
+# $Id: types.test,v 1.20 2009/06/29 06:00:37 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Tests in this file are organized roughly as follows:
+#
+# types-1.*.*: Test that values are stored using the expected storage
+#              classes when various forms of literals are inserted into
+#              columns with different affinities.
+# types-1.1.*: INSERT INTO <table> VALUES(...)
+# types-1.2.*: INSERT INTO <table> SELECT...
+# types-1.3.*: UPDATE <table> SET...
+#
+# types-2.*.*: Check that values can be stored and retrieving using the
+#              various storage classes.
+# types-2.1.*: INTEGER
+# types-2.2.*: REAL
+# types-2.3.*: NULL
+# types-2.4.*: TEXT
+# types-2.5.*: Records with a few different storage classes.
+#
+# types-3.*: Test that the '=' operator respects manifest types.
+#
+
+# Disable encryption on the database for this test.
+db close
+set DB [sqlite3 db test.db; sqlite3_connection_pointer db]
+sqlite3_rekey $DB {}
+
+# Create a table with one column for each type of affinity
+do_test types-1.1.0 {
+  execsql {
+    CREATE TABLE t1(i integer, n numeric, t text, o blob);
+  }
+} {}
+
+# Each element of the following list represents one test case.
+#
+# The first value of each sub-list is an SQL literal. The following
+# four value are the storage classes that would be used if the
+# literal were inserted into a column with affinity INTEGER, NUMERIC, TEXT
+# or NONE, respectively.
+set values {
+  { 5.0    integer integer text real    }
+  { 5.1    real    real    text real    }
+  { 5      integer integer text integer }
+  { '5.0'  integer integer text text    }
+  { '5.1'  real    real    text text    }
+  { '-5.0' integer integer text text    }
+  { '-5.0' integer integer text text    }
+  { '5'    integer integer text text    }
+  { 'abc'  text    text    text text    }
+  { NULL   null    null    null null    }
+}
+ifcapable {bloblit} {
+  lappend values  { X'00'  blob    blob    blob blob    }
+}
+
+# This code tests that the storage classes specified above (in the $values
+# table) are correctly assigned when values are inserted using a statement
+# of the form:
+#
+# INSERT INTO <table> VALUE(<values>);
+#
+set tnum 1
+foreach val $values {
+  set lit [lindex $val 0]
+  execsql "DELETE FROM t1;"
+  execsql "INSERT INTO t1 VALUES($lit, $lit, $lit, $lit);"
+  do_test types-1.1.$tnum {
+    execsql {
+      SELECT typeof(i), typeof(n), typeof(t), typeof(o) FROM t1;
+    }
+  } [lrange $val 1 end]
+  incr tnum
+}
+
+# This code tests that the storage classes specified above (in the $values
+# table) are correctly assigned when values are inserted using a statement
+# of the form:
+#
+# INSERT INTO t1 SELECT ....
+#
+set tnum 1
+foreach val $values {
+  set lit [lindex $val 0]
+  execsql "DELETE FROM t1;"
+  execsql "INSERT INTO t1 SELECT $lit, $lit, $lit, $lit;"
+  do_test types-1.2.$tnum {
+    execsql {
+      SELECT typeof(i), typeof(n), typeof(t), typeof(o) FROM t1;
+    }
+  } [lrange $val 1 end]
+  incr tnum
+}
+
+# This code tests that the storage classes specified above (in the $values
+# table) are correctly assigned when values are inserted using a statement
+# of the form:
+#
+# UPDATE <table> SET <column> = <value>;
+#
+set tnum 1
+foreach val $values {
+  set lit [lindex $val 0]
+  execsql "UPDATE t1 SET i = $lit, n = $lit, t = $lit, o = $lit;"
+  do_test types-1.3.$tnum {
+    execsql {
+      SELECT typeof(i), typeof(n), typeof(t), typeof(o) FROM t1;
+    }
+  } [lrange $val 1 end]
+  incr tnum
+}
+
+execsql {
+  DROP TABLE t1;
+}
+
+# Open the table with root-page $rootpage at the btree
+# level. Return a list that is the length of each record
+# in the table, in the tables default scanning order.
+proc record_sizes {rootpage} {
+  set bt [btree_open test.db 10]
+  btree_begin_transaction $bt
+  set c [btree_cursor $bt $rootpage 0]
+  btree_first $c
+  while 1 {
+    lappend res [btree_payload_size $c]
+    if {[btree_next $c]} break
+  }
+  btree_close_cursor $c
+  btree_close $bt
+  set res
+}
+
+
+# Create a table and insert some 1-byte integers. Make sure they 
+# can be read back OK. These should be 3 byte records.
+do_test types-2.1.1 {
+  execsql {
+    CREATE TABLE t1(a integer);
+    INSERT INTO t1 VALUES(0);
+    INSERT INTO t1 VALUES(120);
+    INSERT INTO t1 VALUES(-120);
+  }
+} {}
+do_test types-2.1.2 {
+  execsql {
+    SELECT a FROM t1;
+  }
+} {0 120 -120}
+
+# Try some 2-byte integers (4 byte records)
+do_test types-2.1.3 {
+  execsql {
+    INSERT INTO t1 VALUES(30000);
+    INSERT INTO t1 VALUES(-30000);
+  }
+} {}
+do_test types-2.1.4 {
+  execsql {
+    SELECT a FROM t1;
+  }
+} {0 120 -120 30000 -30000}
+
+# 4-byte integers (6 byte records)
+do_test types-2.1.5 {
+  execsql {
+    INSERT INTO t1 VALUES(2100000000);
+    INSERT INTO t1 VALUES(-2100000000);
+  }
+} {}
+do_test types-2.1.6 {
+  execsql {
+    SELECT a FROM t1;
+  }
+} {0 120 -120 30000 -30000 2100000000 -2100000000}
+
+# 8-byte integers (10 byte records)
+do_test types-2.1.7 {
+  execsql {
+    INSERT INTO t1 VALUES(9000000*1000000*1000000);
+    INSERT INTO t1 VALUES(-9000000*1000000*1000000);
+  }
+} {}
+do_test types-2.1.8 {
+  execsql {
+    SELECT a FROM t1;
+  }
+} [list 0 120 -120 30000 -30000 2100000000 -2100000000 \
+        9000000000000000000 -9000000000000000000]
+
+# Check that all the record sizes are as we expected.
+ifcapable legacyformat {
+  do_test types-2.1.9 {
+    set root [db eval {select rootpage from sqlite_master where name = 't1'}]
+    record_sizes $root
+  } {3 3 3 4 4 6 6 10 10}
+} else {
+  do_test types-2.1.9 {
+    set root [db eval {select rootpage from sqlite_master where name = 't1'}]
+    record_sizes $root
+  } {2 3 3 4 4 6 6 10 10}
+}
+  
+# Insert some reals. These should be 10 byte records.
+do_test types-2.2.1 {
+  execsql {
+    CREATE TABLE t2(a float);
+    INSERT INTO t2 VALUES(0.0);
+    INSERT INTO t2 VALUES(12345.678);
+    INSERT INTO t2 VALUES(-12345.678);
+  }
+} {}
+do_test types-2.2.2 {
+  execsql {
+    SELECT a FROM t2;
+  }
+} {0.0 12345.678 -12345.678}
+
+# Check that all the record sizes are as we expected.
+ifcapable legacyformat {
+  do_test types-2.2.3 {
+    set root [db eval {select rootpage from sqlite_master where name = 't2'}]
+    record_sizes $root
+  } {3 10 10}
+} else {
+  do_test types-2.2.3 {
+    set root [db eval {select rootpage from sqlite_master where name = 't2'}]
+    record_sizes $root
+  } {2 10 10}
+}
+  
+# Insert a NULL. This should be a two byte record.
+do_test types-2.3.1 {
+  execsql {
+    CREATE TABLE t3(a nullvalue);
+    INSERT INTO t3 VALUES(NULL);
+  }
+} {}
+do_test types-2.3.2 {
+  execsql {
+    SELECT a ISNULL FROM t3;
+  }
+} {1}
+
+# Check that all the record sizes are as we expected.
+do_test types-2.3.3 {
+  set root [db eval {select rootpage from sqlite_master where name = 't3'}]
+  record_sizes $root
+} {2}
+
+# Insert a couple of strings.
+do_test types-2.4.1 {
+  set string10 abcdefghij
+  set string500 [string repeat $string10 50]
+  set string500000 [string repeat $string10 50000]
+
+  execsql "
+    CREATE TABLE t4(a string);
+    INSERT INTO t4 VALUES('$string10');
+    INSERT INTO t4 VALUES('$string500');
+    INSERT INTO t4 VALUES('$string500000');
+  "
+} {}
+do_test types-2.4.2 {
+  execsql {
+    SELECT a FROM t4;
+  }
+} [list $string10 $string500 $string500000]
+
+# Check that all the record sizes are as we expected. This is dependant on
+# the database encoding.
+if { $sqlite_options(utf16)==0 || [execsql {pragma encoding}] == "UTF-8" } {
+  do_test types-2.4.3 {
+    set root [db eval {select rootpage from sqlite_master where name = 't4'}]
+    record_sizes $root
+  } {12 503 500004}
+} else {
+  do_test types-2.4.3 {
+    set root [db eval {select rootpage from sqlite_master where name = 't4'}]
+    record_sizes $root
+  } {22 1003 1000004}
+}
+
+do_test types-2.5.1 {
+  execsql {
+    DROP TABLE t1;
+    DROP TABLE t2;
+    DROP TABLE t3;
+    DROP TABLE t4;
+    CREATE TABLE t1(a, b, c);
+  }
+} {}
+do_test types-2.5.2 {
+  set string10 abcdefghij
+  set string500 [string repeat $string10 50]
+  set string500000 [string repeat $string10 50000]
+
+  execsql "INSERT INTO t1 VALUES(NULL, '$string10', 4000);"
+  execsql "INSERT INTO t1 VALUES('$string500', 4000, NULL);"
+  execsql "INSERT INTO t1 VALUES(4000, NULL, '$string500000');"
+} {}
+do_test types-2.5.3 {
+  execsql {
+    SELECT * FROM t1;
+  }
+} [list {} $string10 4000 $string500 4000 {} 4000 {} $string500000]
+
+finish_test
diff --git a/test/types2.test b/test/types2.test
new file mode 100644
index 0000000000000000000000000000000000000000..d6d84e65b54b568353611d8c4a2fe6d36a0cf04c
--- /dev/null
+++ b/test/types2.test
@@ -0,0 +1,340 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. The focus
+# of this file is testing the interaction of manifest types, type affinity
+# and comparison expressions.
+#
+# $Id: types2.test,v 1.7 2007/02/23 03:00:45 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Tests in this file are organized roughly as follows:
+#
+# types2-1.*: The '=' operator in the absence of an index.
+# types2-2.*: The '=' operator implemented using an index.
+# types2-3.*: The '<' operator implemented using an index.
+# types2-4.*: The '>' operator in the absence of an index.
+# types2-5.*: The 'IN(x, y...)' operator in the absence of an index.
+# types2-6.*: The 'IN(x, y...)' operator with an index.
+# types2-7.*: The 'IN(SELECT...)' operator in the absence of an index.
+# types2-8.*: The 'IN(SELECT...)' operator with an index.
+#
+# All tests test the operators using literals and columns, but no
+# other types of expressions. All expressions except columns are
+# handled similarly in the implementation.
+
+execsql {
+  CREATE TABLE t1(
+    i1 INTEGER,
+    i2 INTEGER,
+    n1 NUMERIC,
+    n2 NUMERIC,
+    t1 TEXT,
+    t2 TEXT,
+    o1 BLOB,
+    o2 BLOB
+  );
+  INSERT INTO t1 VALUES(NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL);
+}
+
+proc test_bool {testname vars expr res} {
+  if { $vars != "" } {
+    execsql "UPDATE t1 SET $vars"
+  }
+
+  foreach {t e r} [list $testname $expr $res] {}
+
+  do_test $t.1 "execsql {SELECT $e FROM t1}" $r
+  do_test $t.2 "execsql {SELECT 1 FROM t1 WHERE $expr}" [expr $r?"1":""]
+  do_test $t.3 "execsql {SELECT 1 FROM t1 WHERE NOT ($e)}" [expr $r?"":"1"]
+}
+
+# Compare literals against literals. This should always use a numeric
+# comparison.
+#
+# Changed by ticket #805:  Use no affinity for literal comparisons.
+#
+test_bool types2-1.1 "" {500 = 500.0} 1
+test_bool types2-1.2 "" {'500' = 500.0} 0
+test_bool types2-1.3 "" {500 = '500.0'} 0
+test_bool types2-1.4 "" {'500' = '500.0'} 0
+
+# Compare literals against a column with TEXT affinity
+test_bool types2-1.5 {t1=500} {500 = t1} 1
+test_bool types2-1.6 {t1=500} {'500' = t1} 1
+test_bool types2-1.7 {t1=500} {500.0 = t1} 0
+test_bool types2-1.8 {t1=500} {'500.0' = t1} 0
+test_bool types2-1.9 {t1='500'} {500 = t1} 1
+test_bool types2-1.10 {t1='500'} {'500' = t1} 1
+test_bool types2-1.11 {t1='500'} {500.0 = t1} 0
+test_bool types2-1.12 {t1='500'} {'500.0' = t1} 0
+
+# Compare literals against a column with NUMERIC affinity
+test_bool types2-1.13 {n1=500} {500 = n1} 1
+test_bool types2-1.14 {n1=500} {'500' = n1} 1
+test_bool types2-1.15 {n1=500} {500.0 = n1} 1
+test_bool types2-1.16 {n1=500} {'500.0' = n1} 1
+test_bool types2-1.17 {n1='500'} {500 = n1} 1
+test_bool types2-1.18 {n1='500'} {'500' = n1} 1
+test_bool types2-1.19 {n1='500'} {500.0 = n1} 1
+test_bool types2-1.20 {n1='500'} {'500.0' = n1} 1
+
+# Compare literals against a column with affinity NONE
+test_bool types2-1.21 {o1=500} {500 = o1} 1
+test_bool types2-1.22 {o1=500} {'500' = o1} 0
+test_bool types2-1.23 {o1=500} {500.0 = o1} 1
+test_bool types2-1.24 {o1=500} {'500.0' = o1} 0
+test_bool types2-1.25 {o1='500'} {500 = o1} 0
+test_bool types2-1.26 {o1='500'} {'500' = o1} 1
+test_bool types2-1.27 {o1='500'} {500.0 = o1} 0
+test_bool types2-1.28 {o1='500'} {'500.0' = o1} 0
+
+set vals [list 10 10.0 '10' '10.0' 20 20.0 '20' '20.0' 30 30.0 '30' '30.0']
+#              1  2    3    4      5  6    7    8      9  10   11   12
+
+execsql {
+  CREATE TABLE t2(i INTEGER, n NUMERIC, t TEXT, o XBLOBY);
+  CREATE INDEX t2i1 ON t2(i);
+  CREATE INDEX t2i2 ON t2(n);
+  CREATE INDEX t2i3 ON t2(t);
+  CREATE INDEX t2i4 ON t2(o);
+}
+foreach v $vals {
+  execsql "INSERT INTO t2 VALUES($v, $v, $v, $v);"
+}
+
+proc test_boolset {testname where set} {
+  set ::tb_sql "SELECT rowid FROM t2 WHERE $where"
+  do_test $testname {
+    lsort -integer [execsql $::tb_sql]
+  } $set
+}
+
+test_boolset types2-2.1 {i = 10} {1 2 3 4}
+test_boolset types2-2.2 {i = 10.0} {1 2 3 4}
+test_boolset types2-2.3 {i = '10'} {1 2 3 4}
+test_boolset types2-2.4 {i = '10.0'} {1 2 3 4}
+
+test_boolset types2-2.5 {n = 20} {5 6 7 8}
+test_boolset types2-2.6 {n = 20.0} {5 6 7 8}
+test_boolset types2-2.7 {n = '20'} {5 6 7 8}
+test_boolset types2-2.8 {n = '20.0'} {5 6 7 8}
+
+test_boolset types2-2.9 {t = 20} {5 7}
+test_boolset types2-2.10 {t = 20.0} {6 8}
+test_boolset types2-2.11 {t = '20'} {5 7}
+test_boolset types2-2.12 {t = '20.0'} {6 8}
+
+test_boolset types2-2.10 {o = 30} {9 10}
+test_boolset types2-2.11 {o = 30.0} {9 10}
+test_boolset types2-2.12 {o = '30'} 11
+test_boolset types2-2.13 {o = '30.0'} 12
+
+test_boolset types2-3.1 {i < 20} {1 2 3 4}
+test_boolset types2-3.2 {i < 20.0} {1 2 3 4}
+test_boolset types2-3.3 {i < '20'} {1 2 3 4}
+test_boolset types2-3.4 {i < '20.0'} {1 2 3 4}
+
+test_boolset types2-3.1 {n < 20} {1 2 3 4}
+test_boolset types2-3.2 {n < 20.0} {1 2 3 4}
+test_boolset types2-3.3 {n < '20'} {1 2 3 4}
+test_boolset types2-3.4 {n < '20.0'} {1 2 3 4}
+
+test_boolset types2-3.1 {t < 20} {1 2 3 4}
+test_boolset types2-3.2 {t < 20.0} {1 2 3 4 5 7}
+test_boolset types2-3.3 {t < '20'} {1 2 3 4}
+test_boolset types2-3.4 {t < '20.0'} {1 2 3 4 5 7}
+
+test_boolset types2-3.1 {o < 20} {1 2}
+test_boolset types2-3.2 {o < 20.0} {1 2}
+test_boolset types2-3.3 {o < '20'} {1 2 3 4 5 6 9 10}
+test_boolset types2-3.3 {o < '20.0'} {1 2 3 4 5 6 7 9 10}
+
+# Compare literals against literals (always a numeric comparison).
+# Change (by ticket #805):  No affinity in comparisons
+test_bool types2-4.1 "" {500 > 60.0} 1
+test_bool types2-4.2 "" {'500' > 60.0} 1
+test_bool types2-4.3 "" {500 > '60.0'} 0
+test_bool types2-4.4 "" {'500' > '60.0'} 0
+
+# Compare literals against a column with TEXT affinity
+test_bool types2-4.5 {t1=500.0} {t1 > 500} 1
+test_bool types2-4.6 {t1=500.0} {t1 > '500' } 1
+test_bool types2-4.7 {t1=500.0} {t1 > 500.0 } 0
+test_bool types2-4.8 {t1=500.0} {t1 > '500.0' } 0
+test_bool types2-4.9 {t1='500.0'} {t1 > 500 } 1
+test_bool types2-4.10 {t1='500.0'} {t1 > '500' } 1
+test_bool types2-4.11 {t1='500.0'} {t1 > 500.0 } 0
+test_bool types2-4.12 {t1='500.0'} {t1 > '500.0' } 0
+
+# Compare literals against a column with NUMERIC affinity
+test_bool types2-4.13 {n1=400} {500 > n1} 1
+test_bool types2-4.14 {n1=400} {'500' > n1} 1
+test_bool types2-4.15 {n1=400} {500.0 > n1} 1
+test_bool types2-4.16 {n1=400} {'500.0' > n1} 1
+test_bool types2-4.17 {n1='400'} {500 > n1} 1
+test_bool types2-4.18 {n1='400'} {'500' > n1} 1
+test_bool types2-4.19 {n1='400'} {500.0 > n1} 1
+test_bool types2-4.20 {n1='400'} {'500.0' > n1} 1
+
+# Compare literals against a column with affinity NONE
+test_bool types2-4.21 {o1=500} {500 > o1} 0
+test_bool types2-4.22 {o1=500} {'500' > o1} 1
+test_bool types2-4.23 {o1=500} {500.0 > o1} 0
+test_bool types2-4.24 {o1=500} {'500.0' > o1} 1
+test_bool types2-4.25 {o1='500'} {500 > o1} 0
+test_bool types2-4.26 {o1='500'} {'500' > o1} 0
+test_bool types2-4.27 {o1='500'} {500.0 > o1} 0
+test_bool types2-4.28 {o1='500'} {'500.0' > o1} 1
+
+ifcapable subquery {
+  # types2-5.* - The 'IN (x, y....)' operator with no index.
+  # 
+  # Compare literals against literals (no affinity applied)
+  test_bool types2-5.1 {} {(NULL IN ('10.0', 20)) ISNULL} 1
+  test_bool types2-5.2 {} {10 IN ('10.0', 20)} 0
+  test_bool types2-5.3 {} {'10' IN ('10.0', 20)} 0
+  test_bool types2-5.4 {} {10 IN (10.0, 20)} 1
+  test_bool types2-5.5 {} {'10.0' IN (10, 20)} 0
+  
+  # Compare literals against a column with TEXT affinity
+  test_bool types2-5.6 {t1='10.0'} {t1 IN (10.0, 20)} 1
+  test_bool types2-5.7 {t1='10.0'} {t1 IN (10, 20)} 0
+  test_bool types2-5.8 {t1='10'} {t1 IN (10.0, 20)} 0
+  test_bool types2-5.9 {t1='10'} {t1 IN (20, '10.0')} 0
+  test_bool types2-5.10 {t1=10} {t1 IN (20, '10')} 1
+  
+  # Compare literals against a column with NUMERIC affinity
+  test_bool types2-5.11 {n1='10.0'} {n1 IN (10.0, 20)} 1
+  test_bool types2-5.12 {n1='10.0'} {n1 IN (10, 20)} 1
+  test_bool types2-5.13 {n1='10'} {n1 IN (10.0, 20)} 1
+  test_bool types2-5.14 {n1='10'} {n1 IN (20, '10.0')} 1
+  test_bool types2-5.15 {n1=10} {n1 IN (20, '10')} 1
+  
+  # Compare literals against a column with affinity NONE
+  test_bool types2-5.16 {o1='10.0'} {o1 IN (10.0, 20)} 0
+  test_bool types2-5.17 {o1='10.0'} {o1 IN (10, 20)} 0
+  test_bool types2-5.18 {o1='10'} {o1 IN (10.0, 20)} 0
+  test_bool types2-5.19 {o1='10'} {o1 IN (20, '10.0')} 0
+  test_bool types2-5.20 {o1=10} {o1 IN (20, '10')} 0
+  test_bool types2-5.21 {o1='10.0'} {o1 IN (10, 20, '10.0')} 1
+  test_bool types2-5.22 {o1='10'} {o1 IN (10.0, 20, '10')} 1
+  test_bool types2-5.23 {o1=10} {n1 IN (20, '10', 10)} 1
+
+  # Ticket #2248:  Comparisons of strings literals that look like
+  # numbers.
+  test_bool types2-5.24 {} {'1' IN ('1')} 1
+  test_bool types2-5.25 {} {'2' IN (2)} 0
+  test_bool types2-5.26 {} {3 IN ('3')} 0
+  test_bool types2-5.27 {} {4 IN (4)} 1
+
+  # The affinity of columns on the right side of IN(...) is ignored.
+  # All values in the expression list are treated as ordinary expressions,
+  # even if they are columns with affinity.
+  test_bool types2-5.30 {t1='10'} {10 IN (5,t1,'abc')} 0
+  test_bool types2-5.31 {t1='10'} {10 IN ('abc',t1,5)} 0
+  test_bool types2-5.32 {t1='010'} {10 IN (5,t1,'abc')} 0
+  test_bool types2-5.33 {t1='010'} {10 IN ('abc',t1,5)} 0
+  test_bool types2-5.34 {t1='10'} {'10' IN (5,t1,'abc')} 1
+  test_bool types2-5.35 {t1='10'} {'10' IN ('abc',t1,5)} 1
+  test_bool types2-5.36 {t1='010'} {'10' IN (5,t1,'abc')} 0
+  test_bool types2-5.37 {t1='010'} {'10' IN ('abc',t1,5)} 0
+  
+  # Columns on both the left and right of IN(...).  Only the column
+  # on the left matters.  The all values on the right are treated like
+  # expressions.
+  test_bool types2-5.40 {t1='10',n1=10} {t1 IN (5,n1,11)} 1
+  test_bool types2-5.41 {t1='010',n1=10} {t1 IN (5,n1,11)} 0
+  test_bool types2-5.42 {t1='10',n1=10} {n1 IN (5,t1,11)} 1
+  test_bool types2-5.43 {t1='010',n1=10} {n1 IN (5,t1,11)} 1
+}
+
+# Tests named types2-6.* use the same infrastructure as the types2-2.*
+# tests. The contents of the vals array is repeated here for easy 
+# reference.
+# 
+# set vals [list 10 10.0 '10' '10.0' 20 20.0 '20' '20.0' 30 30.0 '30' '30.0']
+#                1  2    3    4      5  6    7    8      9  10   11   12
+
+ifcapable subquery {
+  test_boolset types2-6.1 {o IN ('10', 30)} {3 9 10}
+  test_boolset types2-6.2 {o IN (20.0, 30.0)} {5 6 9 10}
+  test_boolset types2-6.3 {t IN ('10', 30)} {1 3 9 11}
+  test_boolset types2-6.4 {t IN (20.0, 30.0)} {6 8 10 12}
+  test_boolset types2-6.5 {n IN ('10', 30)} {1 2 3 4 9 10 11 12}
+  test_boolset types2-6.6 {n IN (20.0, 30.0)} {5 6 7 8 9 10 11 12}
+  test_boolset types2-6.7 {i IN ('10', 30)} {1 2 3 4 9 10 11 12}
+  test_boolset types2-6.8 {i IN (20.0, 30.0)} {5 6 7 8 9 10 11 12}
+
+  # Also test than IN(x, y, z) works on a rowid:
+  test_boolset types2-6.9 {rowid IN (1, 6, 10)} {1 6 10}
+}
+
+# Tests types2-7.* concentrate on expressions of the form 
+# "x IN (SELECT...)" with no index.
+execsql {
+  CREATE TABLE t3(i INTEGER, n NUMERIC, t TEXT, o BLOB);
+  INSERT INTO t3 VALUES(1, 1, 1, 1);
+  INSERT INTO t3 VALUES(2, 2, 2, 2);
+  INSERT INTO t3 VALUES(3, 3, 3, 3);
+  INSERT INTO t3 VALUES('1', '1', '1', '1');
+  INSERT INTO t3 VALUES('1.0', '1.0', '1.0', '1.0');
+}
+
+ifcapable subquery {
+  test_bool types2-7.1 {i1=1} {i1 IN (SELECT i FROM t3)} 1
+  test_bool types2-7.2 {i1='2.0'} {i1 IN (SELECT i FROM t3)} 1
+  test_bool types2-7.3 {i1='2.0'} {i1 IN (SELECT n FROM t3)} 1
+  test_bool types2-7.4 {i1='2.0'} {i1 IN (SELECT t FROM t3)} 1
+  test_bool types2-7.5 {i1='2.0'} {i1 IN (SELECT o FROM t3)} 1
+  
+  test_bool types2-7.6 {n1=1} {n1 IN (SELECT n FROM t3)} 1
+  test_bool types2-7.7 {n1='2.0'} {n1 IN (SELECT i FROM t3)} 1
+  test_bool types2-7.8 {n1='2.0'} {n1 IN (SELECT n FROM t3)} 1
+  test_bool types2-7.9 {n1='2.0'} {n1 IN (SELECT t FROM t3)} 1
+  test_bool types2-7.10 {n1='2.0'} {n1 IN (SELECT o FROM t3)} 1
+  
+  test_bool types2-7.6 {t1=1} {t1 IN (SELECT t FROM t3)} 1
+  test_bool types2-7.7 {t1='2.0'} {t1 IN (SELECT t FROM t3)} 0
+  test_bool types2-7.8 {t1='2.0'} {t1 IN (SELECT n FROM t3)} 1
+  test_bool types2-7.9 {t1='2.0'} {t1 IN (SELECT i FROM t3)} 1
+  test_bool types2-7.10 {t1='2.0'} {t1 IN (SELECT o FROM t3)} 0
+  test_bool types2-7.11 {t1='1.0'} {t1 IN (SELECT t FROM t3)} 1
+  test_bool types2-7.12 {t1='1.0'} {t1 IN (SELECT o FROM t3)} 1
+  
+  test_bool types2-7.13 {o1=2} {o1 IN (SELECT o FROM t3)} 1
+  test_bool types2-7.14 {o1='2'} {o1 IN (SELECT o FROM t3)} 0
+  test_bool types2-7.15 {o1='2'} {o1 IN (SELECT o||'' FROM t3)} 1
+}
+
+# set vals [list 10 10.0 '10' '10.0' 20 20.0 '20' '20.0' 30 30.0 '30' '30.0']
+#                1  2    3    4      5  6    7    8      9  10   11   12
+execsql {
+  CREATE TABLE t4(i INTEGER, n NUMERIC, t VARCHAR(20), o LARGE BLOB);
+  INSERT INTO t4 VALUES(10, 20, 20, 30);
+}
+ifcapable subquery {
+  test_boolset types2-8.1 {i IN (SELECT i FROM t4)} {1 2 3 4}
+  test_boolset types2-8.2 {n IN (SELECT i FROM t4)} {1 2 3 4}
+  test_boolset types2-8.3 {t IN (SELECT i FROM t4)} {1 2 3 4}
+  test_boolset types2-8.4 {o IN (SELECT i FROM t4)} {1 2 3 4}
+  test_boolset types2-8.5 {i IN (SELECT t FROM t4)} {5 6 7 8}
+  test_boolset types2-8.6 {n IN (SELECT t FROM t4)} {5 6 7 8}
+  test_boolset types2-8.7 {t IN (SELECT t FROM t4)} {5 7}
+  test_boolset types2-8.8 {o IN (SELECT t FROM t4)} {7}
+  test_boolset types2-8.9 {i IN (SELECT o FROM t4)} {9 10 11 12}
+  test_boolset types2-8.6 {n IN (SELECT o FROM t4)} {9 10 11 12}
+  test_boolset types2-8.7 {t IN (SELECT o FROM t4)} {}
+  test_boolset types2-8.8 {o IN (SELECT o FROM t4)} {9 10}
+}
+
+finish_test
diff --git a/test/types3.test b/test/types3.test
new file mode 100644
index 0000000000000000000000000000000000000000..457ee6d68acb2f5a1762e12fa068d572bb909de1
--- /dev/null
+++ b/test/types3.test
@@ -0,0 +1,124 @@
+# 2005 June 25
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. The focus
+# of this file is testing the interaction of SQLite manifest types
+# with Tcl dual-representations.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# A variable with only a string representation comes in as TEXT
+do_test types3-1.1 {
+  set V [format %s xxxxx]
+  concat [tcl_variable_type V] [execsql {SELECT typeof(:V)}]
+} {text}
+
+# A variable with an integer representation comes in as INTEGER
+do_test types3-1.2 {
+  set V [expr {int(1+2)}]
+  concat [tcl_variable_type V] [execsql {SELECT typeof(:V)}]
+} {int integer}
+set V [expr {1+12345678012345}]
+if {[tcl_variable_type V]=="wideInt"} {
+  do_test types3-1.3 {
+    set V [expr {1+123456789012345}]
+    concat [tcl_variable_type V] [execsql {SELECT typeof(:V)}]
+  } {wideInt integer}
+} else {
+  do_test types3-1.3 {
+    set V [expr {1+123456789012345}]
+    concat [tcl_variable_type V] [execsql {SELECT typeof(:V)}]
+  } {int integer}
+}
+
+# A double variable comes in as REAL
+do_test types3-1.4 {
+  set V [expr {1.0+1}]
+  concat [tcl_variable_type V] [execsql {SELECT typeof(:V)}]
+} {double real}
+
+# A byte-array variable comes in a BLOB if it has no string representation
+# or as TEXT if there is a string representation.
+#
+do_test types3-1.5 {
+  set V [binary format a3 abc]
+  concat [tcl_variable_type V] [execsql {SELECT typeof(:V)}]
+} {bytearray blob}
+do_test types3-1.6 {
+  set V "abc"
+  binary scan $V a3 x
+  concat [tcl_variable_type V] [execsql {SELECT typeof(:V)}]
+} {bytearray text}
+
+# Check to make sure return values are of the right types.
+#
+ifcapable bloblit {
+  do_test types3-2.1 {
+    set V [db one {SELECT x'616263'}]
+    tcl_variable_type V
+  } bytearray
+}
+do_test types3-2.2 {
+  set V [db one {SELECT 123}]
+  tcl_variable_type V
+} int
+set Vx [expr {1+wide(123456789123456)}]
+do_test types3-2.3 {
+  set V [db one {SELECT 1234567890123456}]
+  tcl_variable_type V
+} [tcl_variable_type Vx]
+do_test types3-2.4.1 {
+  set V [db one {SELECT 1234567890123456.1}]
+  tcl_variable_type V
+} double
+do_test types3-2.4.2 {
+  set V [db one {SELECT 1234567890123.456}]
+  tcl_variable_type V
+} double
+do_test types3-2.5 {
+  set V [db one {SELECT '1234567890123456.0'}]
+  tcl_variable_type V
+} {}
+do_test types3-2.6 {
+  set V [db one {SELECT NULL}]
+  tcl_variable_type V
+} {}
+
+# See https://sqlite.org/forum/forumpost/3776b48e71
+#
+# On a text-affinity comparison of two values where one of
+# the values has both MEM_Str and a numeric type like MEM_Int,
+# make sure that only the MEM_Str representation is used.
+#
+sqlite3_create_function db
+do_execsql_test types3-3.1 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(x TEXT PRIMARY KEY);
+  INSERT INTO t1 VALUES('1');
+  SELECT * FROM t1 WHERE NOT x=upper(1);
+} {}
+do_execsql_test types3-3.2 {
+  SELECT * FROM t1 WHERE NOT x=add_text_type(1);
+} {}
+do_execsql_test types3-3.3 {
+  SELECT * FROM t1 WHERE NOT x=add_int_type('1');
+} {}
+do_execsql_test types3-3.4 {
+  DELETE FROM t1;
+  INSERT INTO t1 VALUES(1.25);
+  SELECT * FROM t1 WHERE NOT x=add_real_type('1.25');
+} {}
+do_execsql_test types3-3.5 {
+  SELECT * FROM t1 WHERE NOT x=add_text_type(1.25);
+} {}
+
+finish_test
diff --git a/test/unhex.test b/test/unhex.test
new file mode 100644
index 0000000000000000000000000000000000000000..af2cfae3903daac2c711f577efa778069eeb3800
--- /dev/null
+++ b/test/unhex.test
@@ -0,0 +1,102 @@
+# 2023 January 23
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source [file join $testdir tester.tcl]
+
+set testprefix unhex
+
+
+foreach {tn hex} {
+  1  0000
+  2  FFFF
+  3  0123456789ABCDEF
+} {
+  do_execsql_test 1.$tn.1 {
+    SELECT hex( unhex( $hex ) );
+  } $hex
+
+  do_execsql_test 1.$tn.2 {
+    SELECT hex( unhex( lower( $hex ) ) );
+  } $hex
+}
+
+do_execsql_test 2.0 {
+  SELECT typeof( unhex('') ), length( unhex('') );
+} {blob 0}
+
+foreach {tn hex} {
+  1  ABC
+  2  hello
+  3  123456x7
+  4  0xff
+} {
+  do_execsql_test 2.$tn {
+    SELECT unhex( $hex ) IS NULL;
+  } 1
+}
+
+do_catchsql_test 3.0 {
+  SELECT unhex();
+} {1 {wrong number of arguments to function unhex()}}
+do_catchsql_test 3.1 {
+  SELECT unhex('ABCD', '1234', '');
+} {1 {wrong number of arguments to function unhex()}}
+
+#--------------------------------------------------------------------------
+# Test the 2-argument version.
+#
+# Zap global x array set in some previous test.
+if {[array exists x]} {array unset x}
+foreach {tn hex} {
+  1 "FFFF  ABCD"
+  2 "FFFF ABCD"
+  3 "FFFFABCD "
+  4 " FFFFABCD"
+  5 "--FFFF AB- -CD- "
+  6 "--"
+  7 " --"
+} {
+  set out ""
+  foreach x [split $hex ""] {
+    if {[string is xdigit $x]} { append out $x }
+  }
+
+  do_execsql_test 5.$tn.1 {
+    SELECT hex( unhex($hex, ' -') );
+  } [list $out]
+}
+
+do_execsql_test 6.0 {
+  SELECT typeof( unhex(' ', ' -') ), length( unhex('-', ' -') );
+} {blob 0}
+
+
+do_execsql_test 6.1 "
+  SELECT hex( unhex('\u0E01ABCD\u0E02', '\uE01\uE02') )
+" {ABCD}
+do_execsql_test 6.2 "
+  SELECT typeof( unhex('\u0E01ABCD\u0E02', '\uE03\uE02') )
+" {null}
+do_execsql_test 6.3 "
+  SELECT hex( unhex('\u0E01AB CD\uE02\uE01', '\uE01 \uE02') )
+" {ABCD}
+
+#--------------------------------------------------------------------------
+# Test that if either argument is NULL, the returned value is also NULL.
+#
+do_execsql_test 6.4.1 { SELECT typeof(unhex(NULL)) } {null}
+do_execsql_test 6.4.2 { SELECT typeof(unhex(NULL, ' ')) } {null}
+do_execsql_test 6.4.3 { SELECT typeof(unhex('1234', NULL)) } {null}
+
+
+finish_test
diff --git a/test/unionall.test b/test/unionall.test
new file mode 100644
index 0000000000000000000000000000000000000000..9057199070d387b338271e562c6eebbc92626b3c
--- /dev/null
+++ b/test/unionall.test
@@ -0,0 +1,453 @@
+# 2020-12-16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is flattening UNION ALL sub-queries.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix unionall
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1_a(a INTEGER PRIMARY KEY, b TEXT);
+  CREATE TABLE t1_b(c INTEGER PRIMARY KEY, d TEXT);
+  CREATE TABLE t1_c(e INTEGER PRIMARY KEY, f TEXT);
+
+  INSERT INTO t1_a VALUES(1, 'one'), (4, 'four');
+  INSERT INTO t1_b VALUES(2, 'two'), (5, 'five');
+  INSERT INTO t1_c VALUES(3, 'three'), (6, 'six');
+
+  CREATE VIEW t1 AS 
+    SELECT a, b FROM t1_a   UNION ALL
+    SELECT c, d FROM t1_b   UNION ALL
+    SELECT e, f FROM t1_c;
+
+  CREATE TABLE i1(x);
+  INSERT INTO i1 VALUES(2), (5), (6), (1);
+}
+
+do_execsql_test 1.1 {
+  SELECT a, b FROM (
+    SELECT a, b FROM t1_a   UNION ALL
+    SELECT c, d FROM t1_b   UNION ALL
+    SELECT e, f FROM t1_c
+  ) ORDER BY a
+} {
+  1 one 2 two 3 three 4 four 5 five 6 six
+}
+
+do_execsql_test 1.2 {
+  SELECT a, b FROM t1 ORDER BY a
+} {
+  1 one 2 two 3 three 4 four 5 five 6 six
+}
+
+do_execsql_test 1.3 {
+  SELECT a, b FROM i1, t1 WHERE a=x ORDER BY a
+} {1 one 2 two 5 five 6 six}
+
+
+# 2022-10-31 part of ticket 57c47526c34f01e8
+# The queries below were causing an assertion fault in
+# the comparison operators of the VDBE.
+#
+reset_db
+database_never_corrupt
+optimization_control db all 0
+do_execsql_test 1.10 {
+  CREATE TABLE t0(c0 INT);
+  INSERT INTO t0 VALUES(0);
+  CREATE TABLE t1_a(a INTEGER PRIMARY KEY, b TEXT);
+  INSERT INTO t1_a VALUES(1,'one');
+  CREATE TABLE t1_b(c INTEGER PRIMARY KEY, d TEXT);
+  INSERT INTO t1_b VALUES(2,'two');
+  CREATE VIEW t1 AS SELECT a, b FROM t1_a UNION ALL SELECT c, c FROM t1_b;
+  SELECT * FROM (SELECT t1.a, t1.b AS b, t0.c0 FROM t0, t1);
+} {1 one 0 2 2 0}
+do_execsql_test 1.11 {
+  SELECT * FROM (SELECT t1.a, t1.b AS b, t0.c0 FROM t0, t1) WHERE b=2;
+} {2 2 0}
+
+#-------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 2.1.0 {
+  CREATE TABLE t1(x, y);
+  INSERT INTO t1 VALUES(1, 'one');
+  INSERT INTO t1 VALUES(1, 'ONE');
+  INSERT INTO t1 VALUES(2, 'two');
+  INSERT INTO t1 VALUES(2, 'TWO');
+  INSERT INTO t1 VALUES(3, 'three');
+  INSERT INTO t1 VALUES(3, 'THREE');
+}
+
+do_execsql_test 2.1.1 {
+  WITH s(i) AS (
+      SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<3
+  )
+  SELECT * FROM (
+    SELECT 0 AS i UNION ALL SELECT i FROM s UNION ALL SELECT 0
+  ), t1 WHERE x=i;
+} {
+  1 1 one 1 1 ONE 2 2 two 2 2 TWO 3 3 three 3 3 THREE
+}
+
+do_catchsql_test 2.1.2 {
+  WITH s(i) AS (
+      SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<3 UNION ALL SELECT 4
+  )
+  SELECT * FROM s, t1 WHERE x=i;
+} {1 {circular reference: s}}
+
+do_execsql_test 2.2.0 {
+  CREATE TABLE t2_a(k INTEGER PRIMARY KEY, v TEXT);
+  CREATE TABLE t2_b(k INTEGER PRIMARY KEY, v TEXT);
+
+  CREATE VIEW t2 AS 
+    SELECT * FROM t2_a 
+    UNION ALL 
+    SELECT * FROM t2_b;
+
+  CREATE TRIGGER t2_insert INSTEAD OF INSERT ON t2 BEGIN
+    INSERT INTO t2_a SELECT new.k, new.v WHERE (new.k%2)==0;
+    INSERT INTO t2_b SELECT new.k, new.v WHERE (new.k%2)==1;
+  END;
+
+  INSERT INTO t2 VALUES(5, 'v'), (4, 'iv'), (3, 'iii'), (2, 'ii');
+}
+
+do_execsql_test 2.2.1 {
+  SELECT * FROM t1, t2 WHERE x=k;
+} {
+  2 two 2 ii 2 TWO 2 ii 3 three 3 iii 3 THREE 3 iii
+}
+
+do_execsql_test 2.2.2 {
+  SELECT * FROM t1 LEFT JOIN t2 ON (x=k);
+} {
+  1 one {} {}
+  1 ONE {} {}
+  2 two 2 ii 2 TWO 2 ii 3 three 3 iii 3 THREE 3 iii
+}
+
+do_execsql_test 2.2.3 {
+  SELECT x1.*, x2.* FROM t2 AS x1, t2 AS x2 WHERE x1.k=x2.k+1
+} {
+  4 iv   3 iii 
+  3 iii  2 ii 
+  5 v    4 iv
+}
+
+do_execsql_test 2.2.4 {
+  SELECT * FROM t1, t2 WHERE x=k ORDER BY y;
+} {
+  3 THREE 3 iii 
+  2 TWO 2 ii 
+  3 three 3 iii 
+  2 two 2 ii
+}
+do_execsql_test 2.2.5 {
+  SELECT * FROM t1, t2 WHERE x=k ORDER BY y||'';
+} {
+  3 THREE 3 iii 
+  2 TWO 2 ii 
+  3 three 3 iii 
+  2 two 2 ii
+}
+do_execsql_test 2.2.6 {
+  SELECT * FROM t1, t2 WHERE x=k ORDER BY v
+} {
+  2 two   2 ii
+  2 TWO   2 ii 
+  3 three 3 iii 
+  3 THREE 3 iii 
+}
+do_execsql_test 2.2.7 {
+  SELECT * FROM t1, t2 WHERE x=k ORDER BY v||''
+} {
+  2 two   2 ii
+  2 TWO   2 ii 
+  3 three 3 iii 
+  3 THREE 3 iii 
+}
+do_execsql_test 2.2.8 {
+  SELECT * FROM t1, t2 WHERE x=k ORDER BY k,v||''
+} {
+  2 two   2 ii
+  2 TWO   2 ii 
+  3 three 3 iii 
+  3 THREE 3 iii 
+}
+do_execsql_test 2.2.9a {
+  SELECT * FROM t1, t2 ORDER BY +k
+} {
+  1 one 2 ii 1 ONE 2 ii 2 two 2 ii 
+  2 TWO 2 ii 3 three 2 ii 3 THREE 2 ii 
+  
+  1 one 3 iii 1 ONE 3 iii 2 two 3 iii 
+  2 TWO 3 iii 3 three 3 iii 3 THREE 3 iii 
+
+  1 one 4 iv 1 ONE 4 iv 2 two 4 iv 
+  2 TWO 4 iv 3 three 4 iv 3 THREE 4 iv 
+
+  1 one 5 v 1 ONE 5 v 2 two 5 v 
+  2 TWO 5 v 3 three 5 v 3 THREE 5 v
+}
+
+do_execsql_test 2.2.9b {
+  SELECT * FROM t1, t2 ORDER BY k
+} {
+  1 one 2 ii 1 ONE 2 ii 2 two 2 ii 
+  2 TWO 2 ii 3 three 2 ii 3 THREE 2 ii 
+  
+  1 one 3 iii 1 ONE 3 iii 2 two 3 iii 
+  2 TWO 3 iii 3 three 3 iii 3 THREE 3 iii 
+
+  1 one 4 iv 1 ONE 4 iv 2 two 4 iv 
+  2 TWO 4 iv 3 three 4 iv 3 THREE 4 iv 
+
+  1 one 5 v 1 ONE 5 v 2 two 5 v 
+  2 TWO 5 v 3 three 5 v 3 THREE 5 v
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 3.0 {
+  CREATE TABLE t1(c INTEGER PRIMARY KEY, d TEXT);
+  INSERT INTO t1 VALUES(1,2);
+  CREATE TABLE t3_a(k INTEGER PRIMARY KEY, v TEXT);
+  INSERT INTO t3_a VALUES(2,'ii');
+  CREATE TABLE t3_b(k INTEGER PRIMARY KEY, v TEXT);
+  CREATE VIEW t3 AS
+    SELECT * FROM t3_a
+    UNION ALL
+    SELECT * FROM t3_b;
+} {}
+
+do_execsql_test 3.1 {
+  SELECT * FROM t1, t3 ORDER BY k;
+} {1 2 2 ii}
+
+reset_db
+do_execsql_test 4.0 {
+
+  CREATE TABLE t1_a(a INTEGER PRIMARY KEY, b TEXT);
+  INSERT INTO t1_a VALUES(123, 't1_a');
+  CREATE TABLE t1_b(c INTEGER PRIMARY KEY, d TEXT);
+
+  CREATE VIEW t1 AS
+    SELECT a, b FROM t1_a
+    UNION ALL
+    SELECT c, d FROM t1_b;
+
+  CREATE TABLE t3_a(k INTEGER PRIMARY KEY, v TEXT);
+  INSERT INTO t3_a VALUES(456, 't3_a');
+  CREATE TABLE t3_b(k INTEGER PRIMARY KEY, v TEXT);
+
+  CREATE VIEW t3 AS
+    SELECT * FROM t3_a
+    UNION ALL
+    SELECT * FROM t3_b;
+}
+
+do_execsql_test 4.1 {
+  SELECT * FROM t1, t3 ORDER BY k;
+} {123 t1_a 456 t3_a}
+
+do_execsql_test 4.2 {
+  SELECT * FROM (SELECT * FROM t1, t3) ORDER BY k;
+} {123 t1_a 456 t3_a}
+
+do_execsql_test 4.3 {
+  SELECT * FROM (SELECT * FROM t1, t3), (
+    SELECT max(a) OVER () FROM t1
+      UNION ALL
+    SELECT min(a) OVER () FROM t1
+  )
+  ORDER BY k;
+} {
+  123 t1_a 456 t3_a 123
+  123 t1_a 456 t3_a 123
+}
+
+do_execsql_test 4.3 {
+  SELECT * FROM (SELECT * FROM t1, t3), (
+    SELECT group_concat(a) OVER (ORDER BY a), 
+           group_concat(a) OVER (ORDER BY a),
+           group_concat(a) OVER (ORDER BY a),
+           group_concat(a) OVER (ORDER BY a),
+           group_concat(a) OVER (ORDER BY a),
+           group_concat(a) OVER (ORDER BY a),
+           group_concat(a) OVER (ORDER BY a),
+           group_concat(a) OVER (ORDER BY a),
+           group_concat(a) OVER (ORDER BY a)
+    FROM t1
+  )
+  ORDER BY k;
+} {
+  123 t1_a 456 t3_a 123 123 123 123 123 123 123 123 123
+}
+
+do_execsql_test 4.3 {
+  SELECT * FROM (SELECT * FROM t1, t3) AS o, (
+    SELECT * FROM t1 LEFT JOIN t3 ON a=k
+  );
+} {
+  123 t1_a 456 t3_a 123 t1_a {} {}
+}
+
+# 2020-12-30: dbsqlfuzz find
+reset_db
+do_execsql_test 5.1 {
+  CREATE TABLE t1_a(a INTEGER PRIMARY KEY, b TEXT);
+  INSERT INTO t1_a VALUES(1,'one');
+  INSERT INTO t1_a VALUES(0,NULL);
+  CREATE TABLE t1_b(c INTEGER PRIMARY KEY, d TEXT);
+  INSERT INTO t1_b VALUES(2,'two');
+  INSERT INTO t1_b VALUES(5,'five');
+  CREATE TABLE t1_c(e INTEGER PRIMARY KEY, f TEXT);
+  INSERT INTO t1_c VALUES(3,'three');
+  INSERT INTO t1_c VALUES(6,'six');
+  CREATE TABLE t2(k,v);
+  INSERT INTO t2 VALUES(5,'v');
+  INSERT INTO t2 VALUES(4,'iv');
+  INSERT INTO t2 VALUES(3,'iii');
+  INSERT INTO t2 VALUES(2,'ii');
+  CREATE TABLE t3_a(k INTEGER PRIMARY KEY, v TEXT);
+  INSERT INTO t3_a VALUES(2,'ii');
+  INSERT INTO t3_a VALUES(4,'iv');
+  CREATE TABLE t3_b(k INTEG5R PRIMARY KEY, v TEXT);
+  INSERT INTO t3_b VALUES(NULL,'iii');
+  INSERT INTO t3_b VALUES(NULL,'v');
+  CREATE VIEW t1 AS 
+    SELECT a, b FROM t1_a   UNION ALL
+    SELECT c, d FROM t1_b   UNION ALL
+    SELECT e, f FROM t1_c;
+  CREATE VIEW t3 AS 
+      SELECT * FROM t3_a 
+      UNION ALL 
+      SELECT * FROM t3_b;
+  CREATE TRIGGER t3_insert INSTEAD OF INSERT ON t3 BEGIN
+      INSERT INTO t3_a SELECT new.k, new.v WHERE (new.k%2)==0;
+      INSERT INTO t3_b SELECT new.k, new.v WHERE (new.k%2)==1;
+  END;
+} {}
+do_execsql_test 5.10 {
+  SELECT *, '+' FROM t1 LEFT JOIN t2 ON (a NOT IN(SELECT v FROM t1, t3 WHERE a=k)=NOT EXISTS(SELECT 1 FROM t1 LEFT JOIN t3 ON (a=k)));
+} {0 {} {} {} + 1 one {} {} + 2 two {} {} + 5 five {} {} + 3 three {} {} + 6 six {} {} +}
+do_execsql_test 5.20 {
+  SELECT *, '+' FROM t1 LEFT JOIN t3 ON (a NOT IN(SELECT v FROM t1 LEFT JOIN t2 ON (a=k))=k);
+} {0 {} {} {} + 1 one {} {} + 2 two {} {} + 5 five {} {} + 3 three {} {} + 6 six {} {} +}
+ifcapable vtab {
+do_catchsql_test 5.30 {
+  SELECT * FROM (t1 NATURAL JOIN pragma_table_xinfo('t1_a') NATURAL JOIN t3) t1
+                NATURAL JOIN t2 NATURAL JOIN t3
+   WHERE rowid ISNULL>0 AND 0%y;
+} {1 {ambiguous column name: rowid}}
+}
+
+reset_db
+do_execsql_test 6.0 {
+  CREATE TABLE t1(a,b);
+  INSERT INTO t1 VALUES(1,2);
+  CREATE TABLE t2(a,b);
+  INSERT INTO t2 VALUES(3,4);
+
+  CREATE TABLE t3(a,b);
+  INSERT INTO t3 VALUES(5,6);
+  CREATE TABLE t4(a,b);
+  INSERT INTO t4 VALUES(7,8);
+
+  CREATE TABLE t5(a,b);
+  INSERT INTO t5 VALUES(9,10);
+}
+
+do_execsql_test 6.1 {
+  WITH x(c) AS (
+    SELECT 1000 FROM t1 UNION ALL SELECT 800 FROM t2
+  ),
+  y(d) AS (
+    SELECT  100 FROM t3 UNION ALL SELECT 400 FROM t4
+  )
+  SELECT * FROM t5, x, y;
+} {
+  9 10 1000 100     9 10 1000 400
+  9 10 800 100      9 10 800 400
+}
+
+# 2021-04-26 dbsqlfuzz 88ed5c66789fced139d148aed823cba7c0926dd7
+reset_db
+do_execsql_test 7.1 {
+  WITH c1(x) AS (VALUES(0) UNION ALL SELECT 100+x FROM c1 WHERE x<100 UNION ALL SELECT 1+x FROM c1 WHERE x<1)
+  SELECT x, y, '|'
+    FROM c1 AS x1, (SELECT x+1 AS y FROM c1 WHERE x<1 UNION ALL SELECT 1+x FROM c1 WHERE 1<x) AS x2
+   ORDER BY x, y;
+} {0 1 | 0 101 | 0 102 | 1 1 | 1 101 | 1 102 | 100 1 | 100 101 | 100 102 | 101 1 | 101 101 | 101 102 |}
+
+# 2022-10-31 ticket https://sqlite.org/src/info/57c47526c34f01e8
+# dbsqlfuzz 37230460b46b3b6049f0d768eb801f3428189382
+# UNION ALL subqueries or views which have arms with different
+# affinities should not be flattened.
+#
+reset_db
+do_execsql_test 8.1 {
+  CREATE TABLE t0(c0 INT);
+  INSERT INTO t0 VALUES(0);
+  CREATE TABLE t1_a(a INTEGER PRIMARY KEY, b TEXT);
+  INSERT INTO t1_a VALUES(1,'one');
+  INSERT INTO t1_a VALUES(4,'four');
+  CREATE TABLE t1_b(c INTEGER PRIMARY KEY, d TEXT);
+  INSERT INTO t1_b VALUES(2,'two');
+  INSERT INTO t1_b VALUES(5,'five');
+  CREATE TABLE t1_c(e INTEGER PRIMARY KEY, f TEXT);
+  INSERT INTO t1_c VALUES(3,'three');
+  INSERT INTO t1_c VALUES(6,'six');
+  CREATE VIEW v0(c0) AS SELECT CAST(t0.c0 AS INTEGER) FROM t0;
+  CREATE VIEW t1 AS 
+    SELECT a, b FROM t1_a   UNION ALL
+    SELECT c, c FROM t1_b   UNION ALL
+    SELECT e, f FROM t1_c;
+  SELECT t1.a, t1.b, t0.c0 AS c, v0.c0 AS d FROM t0 LEFT JOIN v0 ON v0.c0>'0',t1;
+} {1 one 0 {} 4 four 0 {} 2 2 0 {} 5 5 0 {} 3 three 0 {} 6 six 0 {}}
+
+optimization_control db all 1
+do_execsql_test 8.2 {
+  SELECT * FROM (SELECT t1.a, t1.b, t0.c0 AS c, v0.c0 AS d FROM t0 LEFT JOIN v0 ON v0.c0>'0',t1) WHERE b=2;
+} {2 2 0 {}}
+do_execsql_test 8.3 {
+  SELECT * FROM (SELECT t1.a, t1.b, t0.c0 AS c, v0.c0 AS d FROM t0 LEFT JOIN v0 ON v0.c0>'0',t1) WHERE b=2.0;
+} {2 2 0 {}}
+do_execsql_test 8.4 {
+  SELECT * FROM (SELECT t1.a, t1.b, t0.c0 AS c, v0.c0 AS d FROM t0 LEFT JOIN v0 ON v0.c0>'0',t1) WHERE b='2';
+} {}
+optimization_control db query-flattener,push-down 0
+do_execsql_test 8.5 {
+  SELECT * FROM (SELECT t1.a, t1.b, t0.c0 AS c, v0.c0 AS d FROM t0 LEFT JOIN v0 ON v0.c0>'0',t1) WHERE b=2;
+} {2 2 0 {}}
+do_execsql_test 8.6 {
+  SELECT * FROM (SELECT t1.a, t1.b, t0.c0 AS c, v0.c0 AS d FROM t0 LEFT JOIN v0 ON v0.c0>'0',t1) WHERE b=2.0;
+} {2 2 0 {}}
+do_execsql_test 8.7 {
+  SELECT * FROM (SELECT t1.a, t1.b, t0.c0 AS c, v0.c0 AS d FROM t0 LEFT JOIN v0 ON v0.c0>'0',t1) WHERE b='2';
+} {}
+optimization_control db all 0
+do_execsql_test 8.8 {
+  SELECT * FROM (SELECT t1.a, t1.b, t0.c0 AS c, v0.c0 AS d FROM t0 LEFT JOIN v0 ON v0.c0>'0',t1) WHERE b=2;
+} {2 2 0 {}}
+do_execsql_test 8.9 {
+  SELECT * FROM (SELECT t1.a, t1.b, t0.c0 AS c, v0.c0 AS d FROM t0 LEFT JOIN v0 ON v0.c0>'0',t1) WHERE b=2.0;
+} {2 2 0 {}}
+do_execsql_test 8.10 {
+  SELECT * FROM (SELECT t1.a, t1.b, t0.c0 AS c, v0.c0 AS d FROM t0 LEFT JOIN v0 ON v0.c0>'0',t1) WHERE b='2';
+} {}
+
+
+finish_test
diff --git a/test/unionall2.test b/test/unionall2.test
new file mode 100644
index 0000000000000000000000000000000000000000..5f095e4069b1b97b3a403b9652912d0bcbd19524
--- /dev/null
+++ b/test/unionall2.test
@@ -0,0 +1,58 @@
+# 2020-12-22
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is flattening UNION ALL sub-queries.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix unionall2
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b);
+  CREATE TABLE t2(c, d);
+
+  CREATE VIEW v1 AS SELECT * FROM t1, t2;
+  CREATE VIEW v2 AS SELECT * FROM t1, t2;
+
+  CREATE VIEW vA AS
+    SELECT * FROM v1, (
+      SELECT * FROM t1 LEFT JOIN t2 ON (a=c)
+    )
+    UNION ALL
+    SELECT * FROM v1, v2
+}
+
+do_execsql_test 1.1 {
+  SELECT 1 FROM vA, vA, vA, vA, vA, vA, vA, vA, vA, vA
+}
+
+#-------------------------------------------------------------------------
+
+do_execsql_test 2.1 {
+  CREATE TABLE y1(a INTEGER, b);
+  CREATE TABLE y2(c INTEGER, d);
+
+  CREATE TABLE x3_a(a INTEGER PRIMARY KEY, b TEXT);
+  CREATE TABLE x3_b(c INTEGER PRIMARY KEY, d TEXT);
+}
+
+do_execsql_test 2.2 {
+
+  SELECT * FROM y1 CROSS JOIN y2 WHERE y1.a=y2.c AND y2.c IN (
+    SELECT a FROM x3_a UNION ALL
+    SELECT c FROM x3_b ORDER BY 1
+  )
+}
+
+
+
+finish_test
diff --git a/test/unionallfault.test b/test/unionallfault.test
new file mode 100644
index 0000000000000000000000000000000000000000..c78abe548c072b9bcdd84bb2bc4fff50017656de
--- /dev/null
+++ b/test/unionallfault.test
@@ -0,0 +1,36 @@
+# 2020-12-16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix unionallfault
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(x,y,z);
+  CREATE TABLE t3(x,y,z);
+}
+faultsim_save_and_close
+
+
+do_faultsim_test 1 -faults oom-t* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql {
+    SELECT * FROM t1, (
+      SELECT x FROM t1 UNION ALL SELECT y FROM t1
+    ), t3
+  }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+finish_test
diff --git a/test/unionvtab.test b/test/unionvtab.test
new file mode 100644
index 0000000000000000000000000000000000000000..ac5ecb7abb2a2234bdcca45804ad9615596ae072
--- /dev/null
+++ b/test/unionvtab.test
@@ -0,0 +1,457 @@
+# 2017-07-15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is percentile.c extension
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix unionvtab
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+load_static_extension db unionvtab
+
+#-------------------------------------------------------------------------
+# Warm body tests.
+#
+forcedelete test.db2
+do_execsql_test 1.0 {
+  ATTACH 'test.db2' AS aux;
+
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b TEXT);
+  CREATE TABLE t2(a INTEGER PRIMARY KEY, b TEXT);
+  CREATE TABLE aux.t3(a INTEGER PRIMARY KEY, b TEXT);
+
+
+  INSERT INTO t1 VALUES(1, 'one'), (2, 'two'), (3, 'three');
+  INSERT INTO t2 VALUES(10, 'ten'), (11, 'eleven'), (12, 'twelve');
+  INSERT INTO t3 VALUES(20, 'twenty'), (21, 'twenty-one'), (22, 'twenty-two');
+}
+
+do_execsql_test 1.1 {
+  CREATE VIRTUAL TABLE temp.uuu USING unionvtab(
+    "VALUES(NULL, 't1', 1, 9),  ('main', 't2', 10, 19), ('aux', 't3', 20, 29)"
+  );
+  SELECT * FROM uuu;
+} {
+  1 one 2 two 3 three
+  10 ten 11 eleven 12 twelve
+  20 twenty 21 twenty-one 22 twenty-two
+}
+
+do_execsql_test 1.2 {
+  PRAGMA table_info(uuu);
+} {
+  0 a INTEGER 0 {} 0 
+  1 b TEXT 0 {} 0
+}
+
+do_execsql_test 1.3 {
+  SELECT * FROM uuu WHERE rowid = 3;
+  SELECT * FROM uuu WHERE rowid = 11;
+} {3 three 11 eleven}
+
+do_execsql_test 1.4 {
+  SELECT * FROM uuu WHERE rowid IN (12, 10, 2);
+} {2 two 10 ten 12 twelve}
+
+do_execsql_test 1.5 {
+  SELECT * FROM uuu WHERE rowid BETWEEN 3 AND 11;
+} {3 three 10 ten 11 eleven}
+
+do_execsql_test 1.6 {
+  SELECT * FROM uuu WHERE rowid BETWEEN 11 AND 15;
+} {11 eleven 12 twelve}
+
+do_execsql_test 1.7 {
+  SELECT * FROM uuu WHERE rowid BETWEEN -46 AND 1500;
+} {
+  1 one 2 two 3 three
+  10 ten 11 eleven 12 twelve
+  20 twenty 21 twenty-one 22 twenty-two
+}
+
+do_execsql_test 1.8 {
+  CREATE TABLE src(db, tbl, min, max);
+  INSERT INTO src VALUES(NULL, 't1', 1, 9);
+  INSERT INTO src VALUES('main', 't2', 10, 19);
+  INSERT INTO src VALUES('aux', 't3', 20, 29);
+  CREATE VIRTUAL TABLE temp.opp USING unionvtab(src);
+  SELECT * FROM opp;
+} {
+  1 one 2 two 3 three
+  10 ten 11 eleven 12 twelve
+  20 twenty 21 twenty-one 22 twenty-two
+}
+
+do_execsql_test 1.9 {
+  CREATE VIRTUAL TABLE temp.qll USING unionvtab(
+    'SELECT * FROM src WHERE db!=''xyz'''
+  );
+  SELECT * FROM qll WHERE rowid BETWEEN 10 AND 21;
+} {
+  10 ten 11 eleven 12 twelve
+  20 twenty 21 twenty-one
+}
+
+#-------------------------------------------------------------------------
+# Error conditions.
+#
+#   2.1.*: Attempt to create a unionvtab table outside of the TEMP schema.
+#   2.2.*: Tables that do not exist.
+#   2.3.*: Non rowid tables.
+#   2.4.*: Tables with mismatched schemas.
+#   2.5.*: A unionvtab table with zero source tables.
+#
+do_catchsql_test 2.1.1 {
+  CREATE VIRTUAL TABLE u1 USING unionvtab("VALUES(NULL, 't1', 1, 100)");
+} {1 {unionvtab tables must be created in TEMP schema}}
+do_catchsql_test 2.1.2 {
+  CREATE VIRTUAL TABLE main.u1 USING unionvtab("VALUES('', 't1', 1, 100)");
+} {1 {unionvtab tables must be created in TEMP schema}}
+do_catchsql_test 2.1.3 {
+  CREATE VIRTUAL TABLE aux.u1 USING unionvtab("VALUES('', 't1', 1, 100)");
+} {1 {unionvtab tables must be created in TEMP schema}}
+
+do_catchsql_test 2.2.1 {
+  CREATE VIRTUAL TABLE temp.u1 USING unionvtab("VALUES(NULL, 't555', 1, 100)");
+} {1 {no such rowid table: t555}}
+do_catchsql_test 2.2.2 {
+  CREATE VIRTUAL TABLE temp.u1 USING unionvtab("VALUES('aux', 't555', 1, 100)");
+} {1 {no such rowid table: aux.t555}}
+do_catchsql_test 2.2.3 {
+  CREATE VIRTUAL TABLE temp.u1 USING unionvtab("VALUES('xua', 't555', 1, 100)");
+} {1 {no such rowid table: xua.t555}}
+
+do_execsql_test 2.3.0 {
+  CREATE TABLE wr1(a, b, c PRIMARY KEY) WITHOUT ROWID;
+  CREATE VIEW v1 AS SELECT * FROM t1;
+  CREATE VIEW v2 AS SELECT _rowid_, * FROM t1;
+
+  CREATE TABLE wr2(a, _rowid_ INTEGER, c PRIMARY KEY) WITHOUT ROWID;
+  CREATE TABLE wr3(a, b, _rowid_ PRIMARY KEY) WITHOUT ROWID;
+}
+do_catchsql_test 2.3.1 {
+  CREATE VIRTUAL TABLE temp.u1 USING unionvtab("VALUES('main', 'wr1', 1, 2)");
+} {1 {no such rowid table: main.wr1}}
+do_catchsql_test 2.3.2 {
+  CREATE VIRTUAL TABLE temp.u1 USING unionvtab("VALUES(NULL, 'v1', 1, 2)");
+} {1 {no such rowid table: v1}}
+do_catchsql_test 2.3.3 {
+  CREATE VIRTUAL TABLE temp.u1 USING unionvtab("VALUES(NULL, 'v2', 1, 2)");
+} {1 {no such rowid table: v2}}
+do_catchsql_test 2.3.4 {
+  CREATE VIRTUAL TABLE temp.u1 USING unionvtab("VALUES(NULL, 'wr2', 1, 2)");
+} {1 {no such rowid table: wr2}}
+do_catchsql_test 2.3.5 {
+  CREATE VIRTUAL TABLE temp.u1 USING unionvtab("VALUES(NULL, 'wr3', 1, 2)");
+} {1 {no such rowid table: wr3}}
+
+do_execsql_test 2.4.0 {
+  CREATE TABLE x1(a BLOB, b);
+  CREATE TABLE x2(a BLOB, b);
+  CREATE TEMP TABLE x3(a BLOB, b);
+
+  CREATE TABLE aux.y1(one, two, three INTEGER PRIMARY KEY);
+  CREATE TEMP TABLE y2(one, two, three INTEGER PRIMARY KEY);
+  CREATE TABLE y3(one, two, three INTEGER PRIMARY KEY);
+}
+
+foreach {tn dbs res} {
+  1 {x1 x2 x3} {0 {}}
+  2 {y1 y2 y3} {0 {}}
+  3 {x1 y2 y3} {1 {source table schema mismatch}}
+  4 {x1 y2 x3} {1 {source table schema mismatch}}
+  5 {x1 x2 y3} {1 {source table schema mismatch}}
+} {
+  set L [list]
+  set iMin 0
+  foreach e $dbs {
+    set E [split $e .]
+    if {[llength $E]>1} {
+      lappend L "('[lindex $E 0]', '[lindex $E 1]', $iMin, $iMin)"
+    } else {
+      lappend L "(NULL, '$e', $iMin, $iMin)"
+    }
+    incr iMin
+  }
+
+  set sql "CREATE VIRTUAL TABLE temp.a1 USING unionvtab(\"VALUES [join $L ,]\")"
+  do_catchsql_test 2.4.$tn "
+    DROP TABLE IF EXISTS temp.a1;
+    CREATE VIRTUAL TABLE temp.a1 USING unionvtab(\"VALUES [join $L ,]\");
+  " $res
+}
+
+do_catchsql_test 2.5 {
+  CREATE VIRTUAL TABLE temp.b1 USING unionvtab(
+    [SELECT 'main', 'b1', 0, 100 WHERE 0]
+  )
+} {1 {no source tables configured}}
+
+foreach {tn sql} {
+  1 { VALUES('main', 't1', 10, 20), ('main', 't2', 30, 29) }
+  2 { VALUES('main', 't1', 10, 20), ('main', 't2', 15, 30) }
+} {
+  do_catchsql_test 2.6.$tn "
+    CREATE VIRTUAL TABLE temp.a1 USING unionvtab(`$sql`)
+  " {1 {rowid range mismatch error}}
+}
+
+do_catchsql_test 2.7.1 {
+  CREATE VIRTUAL TABLE temp.b1 USING unionvtab(1, 2, 3, 4)
+} {1 {wrong number of arguments for unionvtab}}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+load_static_extension db unionvtab
+do_execsql_test 3.0 {
+  CREATE TABLE tbl1(a INTEGER PRIMARY KEY, b);
+  CREATE TABLE tbl2(a INTEGER PRIMARY KEY, b);
+  CREATE TABLE tbl3(a INTEGER PRIMARY KEY, b);
+
+  WITH ss(ii) AS ( SELECT 1 UNION ALL SELECT ii+1 FROM ss WHERE ii<100 )
+  INSERT INTO tbl1 SELECT ii, '1.' || ii FROM ss;
+
+  WITH ss(ii) AS ( SELECT 1 UNION ALL SELECT ii+1 FROM ss WHERE ii<100 )
+  INSERT INTO tbl2 SELECT ii, '2.' || ii FROM ss;
+
+  WITH ss(ii) AS ( SELECT 1 UNION ALL SELECT ii+1 FROM ss WHERE ii<100 )
+  INSERT INTO tbl3 SELECT ii, '3.' || ii FROM ss;
+
+  CREATE VIRTUAL TABLE temp.uu USING unionvtab(
+    "VALUES(NULL,'tbl2', 26, 74), (NULL,'tbl3', 75, 100), (NULL,'tbl1', 1, 25)"
+  );
+}
+
+do_execsql_test 3.1 {
+  SELECT * FROM uu WHERE rowid = 10;
+} {10 {1.10}}
+do_execsql_test 3.2 {
+  SELECT * FROM uu WHERE rowid = 25;
+} {25 {1.25}}
+
+do_execsql_test 3.3 { SELECT count(*) FROM uu WHERE rowid <= 24 } {24}
+
+# The following queries get the "wrong" answers. This is because the
+# module assumes that each source table contains rowids from only within
+# the range specified. For example, (rowid <= 25) matches 100 rows. This
+# is because the module implements (rowid <= 25) as a full table scan
+# of tbl1 only.
+do_execsql_test 3.4.1 { SELECT count(*) FROM uu WHERE rowid <= 25 } {100}
+do_execsql_test 3.4.2 { SELECT count(*) FROM uu WHERE rowid <= 26 } {126}
+do_execsql_test 3.4.3 { SELECT count(*) FROM uu WHERE rowid <= 73 } {173}
+do_execsql_test 3.4.4 { SELECT count(*) FROM uu WHERE rowid <= 74 } {200}
+do_execsql_test 3.4.5 { SELECT count(*) FROM uu WHERE rowid <= 75 } {275}
+do_execsql_test 3.4.6 { SELECT count(*) FROM uu WHERE rowid <= 99 } {299}
+do_execsql_test 3.4.7 { SELECT count(*) FROM uu WHERE rowid <= 100 } {300}
+do_execsql_test 3.4.8 { SELECT count(*) FROM uu WHERE rowid <= 101 } {300}
+
+do_execsql_test 3.5.1 { SELECT count(*) FROM uu WHERE rowid < 25 } {24}
+do_execsql_test 3.5.2 { SELECT count(*) FROM uu WHERE rowid < 26 } {100}
+do_execsql_test 3.5.3 { SELECT count(*) FROM uu WHERE rowid < 27 } {126}
+do_execsql_test 3.5.4 { SELECT count(*) FROM uu WHERE rowid < 73 } {172}
+do_execsql_test 3.5.5 { SELECT count(*) FROM uu WHERE rowid < 74 } {173}
+do_execsql_test 3.5.6 { SELECT count(*) FROM uu WHERE rowid < 75 } {200}
+do_execsql_test 3.5.7 { SELECT count(*) FROM uu WHERE rowid < 76 } {275}
+do_execsql_test 3.5.8 { SELECT count(*) FROM uu WHERE rowid < 99 } {298}
+do_execsql_test 3.5.9 { SELECT count(*) FROM uu WHERE rowid < 100 } {299}
+do_execsql_test 3.5.10 { SELECT count(*) FROM uu WHERE rowid < 101 } {300}
+
+do_execsql_test 3.6.1 { SELECT count(*) FROM uu WHERE rowid > 24 } {276}
+do_execsql_test 3.6.1 { SELECT count(*) FROM uu WHERE rowid > 25 } {200}
+do_execsql_test 3.6.2 { SELECT count(*) FROM uu WHERE rowid > 26 } {174}
+do_execsql_test 3.6.3 { SELECT count(*) FROM uu WHERE rowid > 27 } {173}
+do_execsql_test 3.6.4 { SELECT count(*) FROM uu WHERE rowid > 73 } {127}
+do_execsql_test 3.6.5 { SELECT count(*) FROM uu WHERE rowid > 74 } {100}
+do_execsql_test 3.6.6 { SELECT count(*) FROM uu WHERE rowid > 75 } {25}
+do_execsql_test 3.6.7 { SELECT count(*) FROM uu WHERE rowid > 76 } {24}
+do_execsql_test 3.6.8 { SELECT count(*) FROM uu WHERE rowid > 99 } {1}
+do_execsql_test 3.6.9 { SELECT count(*) FROM uu WHERE rowid > 100 } {0}
+do_execsql_test 3.6.10 { SELECT count(*) FROM uu WHERE rowid > 101 } {0}
+
+do_execsql_test 3.7.1 { SELECT count(*) FROM uu WHERE rowid >= 24 } {277}
+do_execsql_test 3.7.1 { SELECT count(*) FROM uu WHERE rowid >= 25 } {276}
+do_execsql_test 3.7.2 { SELECT count(*) FROM uu WHERE rowid >= 26 } {200}
+do_execsql_test 3.7.3 { SELECT count(*) FROM uu WHERE rowid >= 27 } {174}
+do_execsql_test 3.7.4 { SELECT count(*) FROM uu WHERE rowid >= 73 } {128}
+do_execsql_test 3.7.5 { SELECT count(*) FROM uu WHERE rowid >= 74 } {127}
+do_execsql_test 3.7.6 { SELECT count(*) FROM uu WHERE rowid >= 75 } {100}
+do_execsql_test 3.7.7 { SELECT count(*) FROM uu WHERE rowid >= 76 } {25}
+do_execsql_test 3.7.8 { SELECT count(*) FROM uu WHERE rowid >= 99 } {2}
+do_execsql_test 3.7.9 { SELECT count(*) FROM uu WHERE rowid >= 100 } {1}
+do_execsql_test 3.7.10 { SELECT count(*) FROM uu WHERE rowid >= 101 } {0}
+
+set L [expr  9223372036854775807]
+set S [expr -9223372036854775808]
+
+do_execsql_test 3.8.1 { SELECT count(*) FROM uu WHERE rowid >= $S } {300}
+do_execsql_test 3.8.2 { SELECT count(*) FROM uu WHERE rowid >  $S } {300}
+do_execsql_test 3.8.3 { SELECT count(*) FROM uu WHERE rowid <= $S } {0}
+do_execsql_test 3.8.4 { SELECT count(*) FROM uu WHERE rowid <  $S } {0}
+
+do_execsql_test 3.9.1 { SELECT count(*) FROM uu WHERE rowid >= $L } {0}
+do_execsql_test 3.9.2 { SELECT count(*) FROM uu WHERE rowid >  $L } {0}
+do_execsql_test 3.9.3 { SELECT count(*) FROM uu WHERE rowid <= $L } {300}
+do_execsql_test 3.9.4 { SELECT count(*) FROM uu WHERE rowid <  $L } {300}
+
+do_execsql_test 3.10.1 { SELECT count(*) FROM uu WHERE a < 25 } {24}
+do_execsql_test 3.10.2 { SELECT count(*) FROM uu WHERE a < 26 } {100}
+do_execsql_test 3.10.3 { SELECT count(*) FROM uu WHERE a < 27 } {126}
+do_execsql_test 3.10.4 { SELECT count(*) FROM uu WHERE a < 73 } {172}
+do_execsql_test 3.10.5 { SELECT count(*) FROM uu WHERE a < 74 } {173}
+do_execsql_test 3.10.6 { SELECT count(*) FROM uu WHERE a < 75 } {200}
+do_execsql_test 3.10.7 { SELECT count(*) FROM uu WHERE a < 76 } {275}
+do_execsql_test 3.10.8 { SELECT count(*) FROM uu WHERE a < 99 } {298}
+do_execsql_test 3.10.9 { SELECT count(*) FROM uu WHERE a < 100 } {299}
+do_execsql_test 3.10.10 { SELECT count(*) FROM uu WHERE a < 101 } {300}
+
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test 4.0 {
+  CREATE TABLE s1(k INTEGER PRIMARY KEY, v);
+  INSERT INTO s1 VALUES($S, 'one');
+  INSERT INTO s1 VALUES($S+1, 'two');
+  INSERT INTO s1 VALUES($S+2, 'three');
+
+  CREATE TABLE l1(k INTEGER PRIMARY KEY, v);
+  INSERT INTO l1 VALUES($L, 'six');
+  INSERT INTO l1 VALUES($L-1, 'five');
+  INSERT INTO l1 VALUES($L-2, 'four');
+
+  CREATE VIRTUAL TABLE temp.sl USING unionvtab(
+    "SELECT NULL, 'l1', 0, 9223372036854775807
+     UNION ALL
+     SELECT NULL, 's1', -9223372036854775808, -1"
+  );
+}
+
+do_execsql_test 4.1 {
+  SELECT * FROM sl;
+} {
+  -9223372036854775808 one -9223372036854775807 two -9223372036854775806 three
+   9223372036854775805 four 9223372036854775806 five 9223372036854775807 six
+}
+
+foreach {k v} {
+  -9223372036854775808 one -9223372036854775807 two -9223372036854775806 three
+   9223372036854775805 four 9223372036854775806 five 9223372036854775807 six
+} {
+  do_execsql_test 4.2.$v { SELECT * FROM sl WHERE rowid=$k } [list $k $v]
+}
+
+do_execsql_test 4.3.1 {
+  SELECT * FROM sl WHERE rowid>-9223372036854775808
+} {
+  -9223372036854775807 two -9223372036854775806 three
+   9223372036854775805 four 9223372036854775806 five 9223372036854775807 six
+}
+do_execsql_test 4.3.2 {
+  SELECT * FROM sl WHERE rowid>=-9223372036854775808
+} {
+  -9223372036854775808 one -9223372036854775807 two -9223372036854775806 three
+   9223372036854775805 four 9223372036854775806 five 9223372036854775807 six
+}
+do_execsql_test 4.3.3 {
+  SELECT * FROM sl WHERE rowid<=-9223372036854775808
+} {
+  -9223372036854775808 one
+}
+do_execsql_test 4.3.4 {
+  SELECT * FROM sl WHERE rowid<-9223372036854775808
+} {}
+
+do_execsql_test 4.4.1 {
+  SELECT * FROM sl WHERE rowid<9223372036854775807
+} {
+  -9223372036854775808 one -9223372036854775807 two -9223372036854775806 three
+   9223372036854775805 four 9223372036854775806 five
+}
+do_execsql_test 4.4.2 {
+  SELECT * FROM sl WHERE rowid<=9223372036854775807
+} {
+  -9223372036854775808 one -9223372036854775807 two -9223372036854775806 three
+   9223372036854775805 four 9223372036854775806 five 9223372036854775807 six
+}
+do_execsql_test 4.4.3 {
+  SELECT * FROM sl WHERE rowid>=9223372036854775807
+} {
+  9223372036854775807 six
+}
+do_execsql_test 4.4.4 {
+  SELECT * FROM sl WHERE rowid>9223372036854775807
+} {}
+
+#-------------------------------------------------------------------------
+# More than 8 source tables.
+#
+do_execsql_test 5.0 {
+  CREATE TABLE c0(one, two INTEGER PRIMARY KEY);
+  CREATE TABLE c1(one, two INTEGER PRIMARY KEY);
+  CREATE TABLE c2(one, two INTEGER PRIMARY KEY);
+  CREATE TABLE c3(one, two INTEGER PRIMARY KEY);
+  CREATE TABLE c4(one, two INTEGER PRIMARY KEY);
+  CREATE TABLE c5(one, two INTEGER PRIMARY KEY);
+  CREATE TABLE c6(one, two INTEGER PRIMARY KEY);
+  CREATE TABLE c7(one, two INTEGER PRIMARY KEY);
+  CREATE TABLE c8(one, two INTEGER PRIMARY KEY);
+  CREATE TABLE c9(one, two INTEGER PRIMARY KEY);
+
+  INSERT INTO c0 VALUES('zero', 0);
+  INSERT INTO c1 VALUES('one', 1);
+  INSERT INTO c2 VALUES('two', 2);
+  INSERT INTO c3 VALUES('three', 3);
+  INSERT INTO c4 VALUES('four', 4);
+  INSERT INTO c5 VALUES('five', 5);
+  INSERT INTO c6 VALUES('six', 6);
+  INSERT INTO c7 VALUES('seven', 7);
+  INSERT INTO c8 VALUES('eight', 8);
+  INSERT INTO c9 VALUES('nine', 9);
+
+  CREATE VIRTUAL TABLE temp.cc USING unionvtab([
+    SELECT 'main', 'c9', 9, 9 UNION ALL
+    SELECT 'main', 'c8', 8, 8 UNION ALL
+    SELECT 'main', 'c7', 7, 7 UNION ALL
+    SELECT 'main', 'c6', 6, 6 UNION ALL
+    SELECT 'main', 'c5', 5, 5 UNION ALL
+    SELECT 'main', 'c4', 4, 4 UNION ALL
+    SELECT 'main', 'c3', 3, 3 UNION ALL
+    SELECT 'main', 'c2', 2, 2 UNION ALL
+    SELECT 'main', 'c1', 1, 1 UNION ALL
+    SELECT 'main', 'c0', 0, 0
+  ]);
+
+  SELECT sum(two) FROM cc;
+} {45}
+
+do_execsql_test 5.1 {
+  SELECT one FROM cc WHERE one>='seven'
+} {zero two three six seven}
+
+do_execsql_test 5.2 {
+  SELECT y.one FROM cc AS x, cc AS y WHERE x.one=y.one AND x.rowid>5
+} {six seven eight nine}
+
+do_execsql_test 5.3 {
+  SELECT cc.one FROM c4, cc WHERE cc.rowid>c4.rowid
+} {five six seven eight nine}
+
+do_execsql_test 5.4 {
+  SELECT * FROM cc WHERE two LIKE '6'
+} {six 6}
+
+finish_test
diff --git a/test/unionvtabfault.test b/test/unionvtabfault.test
new file mode 100644
index 0000000000000000000000000000000000000000..f66c9ac978af6ba6f7ba4f672b5d27ea99206d50
--- /dev/null
+++ b/test/unionvtabfault.test
@@ -0,0 +1,83 @@
+# 2017-07-15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is percentile.c extension
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix unionvtabfault
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+forcedelete test.db2
+do_execsql_test 1.0 {
+  ATTACH 'test.db2' AS aux;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b TEXT);
+  CREATE TABLE t2(a INTEGER PRIMARY KEY, b TEXT);
+  CREATE TABLE aux.t3(a INTEGER PRIMARY KEY, b TEXT);
+
+  INSERT INTO t1 VALUES(1, 'one'), (2, 'two'), (3, 'three');
+  INSERT INTO t2 VALUES(10, 'ten'), (11, 'eleven'), (12, 'twelve');
+  INSERT INTO t3 VALUES(20, 'twenty'), (21, 'twenty-one'), (22, 'twenty-two');
+}
+faultsim_save_and_close
+
+do_faultsim_test 1.1 -faults * -prep {
+  faultsim_restore_and_reopen
+  load_static_extension db unionvtab
+  execsql { ATTACH 'test.db2' AS aux; }
+  execsql { CREATE TEMP TABLE xyz(x); }
+} -body {
+  execsql {
+    CREATE VIRTUAL TABLE temp.uuu USING unionvtab(
+    "VALUES(NULL, 't1', 1, 9),  ('main', 't2', 10, 19), ('aux', 't3', 20, 29)"
+    );
+  }
+} -test {
+  faultsim_test_result {0 {}}             \
+     {1 {vtable constructor failed: uuu}} \
+     {1 {sql error: interrupted}}
+}
+
+faultsim_restore_and_reopen
+load_static_extension db unionvtab
+execsql { ATTACH 'test.db2' AS aux; }
+execsql { CREATE TEMP TABLE xyz(x); }
+execsql {
+  CREATE VIRTUAL TABLE temp.uuu USING unionvtab(
+      "VALUES(NULL, 't1', 1, 9),  ('main', 't2', 10, 19), ('aux', 't3', 20, 29)"
+  );
+}
+do_faultsim_test 1.2 -faults oom* -prep {
+} -body {
+  execsql { SELECT * FROM uuu }
+} -test {
+  faultsim_test_result {0 {1 one 2 two 3 three 10 ten 11 eleven 12 twelve 20 twenty 21 twenty-one 22 twenty-two}} 
+}
+
+#-------------------------------------------------------------------------
+# Error while registering the two vtab modules.
+do_faultsim_test 2.0 -faults * -prep {
+  catch { db close }
+  sqlite3 db :memory:
+} -body {
+  load_static_extension db unionvtab
+} -test {
+  faultsim_test_result {0 {}} {1 {initialization of unionvtab failed: }}
+}
+
+
+
+finish_test
diff --git a/test/unique.test b/test/unique.test
new file mode 100644
index 0000000000000000000000000000000000000000..04581c231bc420594cd4f2bcbad09c976bbe8c3c
--- /dev/null
+++ b/test/unique.test
@@ -0,0 +1,261 @@
+# 2001 September 27
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the CREATE UNIQUE INDEX statement,
+# and primary keys, and the UNIQUE constraint on table columns
+#
+# $Id: unique.test,v 1.9 2009/05/02 15:46:47 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Try to create a table with two primary keys.
+# (This is allowed in SQLite even that it is not valid SQL)
+#
+do_test unique-1.1 {
+  catchsql {
+    CREATE TABLE t1(
+       a int PRIMARY KEY,
+       b int PRIMARY KEY,
+       c text
+    );
+  }
+} {1 {table "t1" has more than one primary key}}
+do_test unique-1.1b {
+  catchsql {
+    CREATE TABLE t1(
+       a int PRIMARY KEY,
+       b int UNIQUE,
+       c text
+    );
+  }
+} {0 {}}
+do_test unique-1.2 {
+  catchsql {
+    INSERT INTO t1(a,b,c) VALUES(1,2,3)
+  }
+} {0 {}}
+do_test unique-1.3 {
+  catchsql {
+    INSERT INTO t1(a,b,c) VALUES(1,3,4)
+  }
+} {1 {UNIQUE constraint failed: t1.a}}
+verify_ex_errcode unique-1.3b SQLITE_CONSTRAINT_PRIMARYKEY
+do_test unique-1.4 {
+  execsql {
+    SELECT * FROM t1 ORDER BY a;
+  }
+} {1 2 3}
+do_test unique-1.5 {
+  catchsql {
+    INSERT INTO t1(a,b,c) VALUES(3,2,4)
+  }
+} {1 {UNIQUE constraint failed: t1.b}}
+verify_ex_errcode unique-1.5b SQLITE_CONSTRAINT_UNIQUE
+do_test unique-1.6 {
+  execsql {
+    SELECT * FROM t1 ORDER BY a;
+  }
+} {1 2 3}
+do_test unique-1.7 {
+  catchsql {
+    INSERT INTO t1(a,b,c) VALUES(3,4,5)
+  }
+} {0 {}}
+do_test unique-1.8 {
+  execsql {
+    SELECT * FROM t1 ORDER BY a;
+  }
+} {1 2 3 3 4 5}
+integrity_check unique-1.9
+
+do_test unique-2.0 {
+  execsql {
+    DROP TABLE t1;
+    CREATE TABLE t2(a int, b int);
+    INSERT INTO t2(a,b) VALUES(1,2);
+    INSERT INTO t2(a,b) VALUES(3,4);
+    SELECT * FROM t2 ORDER BY a;
+  }
+} {1 2 3 4}
+do_test unique-2.1 {
+  catchsql {
+    CREATE UNIQUE INDEX i2 ON t2(a)
+  }
+} {0 {}}
+do_test unique-2.2 {
+  catchsql {
+    SELECT * FROM t2 ORDER BY a
+  }
+} {0 {1 2 3 4}}
+do_test unique-2.3 {
+  catchsql {
+    INSERT INTO t2 VALUES(1,5);
+  }
+} {1 {UNIQUE constraint failed: t2.a}}
+verify_ex_errcode unique-2.3b SQLITE_CONSTRAINT_UNIQUE
+do_test unique-2.4 {
+  catchsql {
+    SELECT * FROM t2 ORDER BY a
+  }
+} {0 {1 2 3 4}}
+do_test unique-2.5 {
+  catchsql {
+    DROP INDEX i2;
+    SELECT * FROM t2 ORDER BY a;
+  }
+} {0 {1 2 3 4}}
+do_test unique-2.6 {
+  catchsql {
+    INSERT INTO t2 VALUES(1,5)
+  }
+} {0 {}}
+do_test unique-2.7 {
+  catchsql {
+    SELECT * FROM t2 ORDER BY a, b;
+  }
+} {0 {1 2 1 5 3 4}}
+do_test unique-2.8 {
+  catchsql {
+    CREATE UNIQUE INDEX i2 ON t2(a);
+  }
+} {1 {UNIQUE constraint failed: t2.a}}
+verify_ex_errcode unique-2.8b SQLITE_CONSTRAINT_UNIQUE
+do_test unique-2.9 {
+  catchsql {
+    CREATE INDEX i2 ON t2(a);
+  }
+} {0 {}}
+integrity_check unique-2.10
+
+# Test the UNIQUE keyword as used on two or more fields.
+#
+do_test unique-3.1 {
+  catchsql {
+    CREATE TABLE t3(
+       a int,
+       b int,
+       c int,
+       d int,
+       unique(a,c,d)
+     );
+  }
+} {0 {}}
+do_test unique-3.2 {
+  catchsql {
+    INSERT INTO t3(a,b,c,d) VALUES(1,2,3,4);
+    SELECT * FROM t3 ORDER BY a,b,c,d;
+  }
+} {0 {1 2 3 4}}
+do_test unique-3.3 {
+  catchsql {
+    INSERT INTO t3(a,b,c,d) VALUES(1,2,3,5);
+    SELECT * FROM t3 ORDER BY a,b,c,d;
+  }
+} {0 {1 2 3 4 1 2 3 5}}
+do_test unique-3.4 {
+  catchsql {
+    INSERT INTO t3(a,b,c,d) VALUES(1,4,3,5);
+    SELECT * FROM t3 ORDER BY a,b,c,d;
+  }
+} {1 {UNIQUE constraint failed: t3.a, t3.c, t3.d}}
+verify_ex_errcode unique-3.4b SQLITE_CONSTRAINT_UNIQUE
+integrity_check unique-3.5
+
+# Make sure NULLs are distinct as far as the UNIQUE tests are
+# concerned.
+#
+do_test unique-4.1 {
+  execsql {
+    CREATE TABLE t4(a UNIQUE, b, c, UNIQUE(b,c));
+    INSERT INTO t4 VALUES(1,2,3);
+    INSERT INTO t4 VALUES(NULL, 2, NULL);
+    SELECT * FROM t4;
+  }
+} {1 2 3 {} 2 {}}
+do_test unique-4.2 {
+  catchsql {
+    INSERT INTO t4 VALUES(NULL, 3, 4);
+  }
+} {0 {}}
+do_test unique-4.3 {
+  execsql {
+    SELECT * FROM t4
+  }
+} {1 2 3 {} 2 {} {} 3 4}
+do_test unique-4.4 {
+  catchsql {
+    INSERT INTO t4 VALUES(2, 2, NULL);
+  }
+} {0 {}}
+do_test unique-4.5 {
+  execsql {
+    SELECT * FROM t4
+  }
+} {1 2 3 {} 2 {} {} 3 4 2 2 {}}
+
+# Ticket #1301.  Any NULL value in a set of unique columns should
+# cause the rows to be distinct.
+#
+do_test unique-4.6 {
+  catchsql {
+    INSERT INTO t4 VALUES(NULL, 2, NULL);
+  }
+} {0 {}}
+do_test unique-4.7 {
+  execsql {SELECT * FROM t4}
+} {1 2 3 {} 2 {} {} 3 4 2 2 {} {} 2 {}}
+do_test unique-4.8 {
+  catchsql {CREATE UNIQUE INDEX i4a ON t4(a,b)}
+} {0 {}}
+do_test unique-4.9 {
+  catchsql {CREATE UNIQUE INDEX i4b ON t4(a,b,c)}
+} {0 {}}
+do_test unique-4.10 {
+  catchsql {CREATE UNIQUE INDEX i4c ON t4(b)}
+} {1 {UNIQUE constraint failed: t4.b}}
+verify_ex_errcode unique-4.10b SQLITE_CONSTRAINT_UNIQUE
+integrity_check unique-4.99
+
+# Test the error message generation logic.  In particular, make sure we
+# do not overflow the static buffer used to generate the error message.
+#
+do_test unique-5.1 {
+  execsql {
+    CREATE TABLE t5(
+      first_column_with_long_name,
+      second_column_with_long_name,
+      third_column_with_long_name,
+      fourth_column_with_long_name,
+      fifth_column_with_long_name,
+      sixth_column_with_long_name,
+      UNIQUE(
+        first_column_with_long_name,
+        second_column_with_long_name,
+        third_column_with_long_name,
+        fourth_column_with_long_name,
+        fifth_column_with_long_name,
+        sixth_column_with_long_name
+      )
+    );
+    INSERT INTO t5 VALUES(1,2,3,4,5,6);
+    SELECT * FROM t5;
+  }
+} {1 2 3 4 5 6}
+do_test unique-5.2 {
+  catchsql {
+    INSERT INTO t5 VALUES(1,2,3,4,5,6);
+  }
+} {1 {UNIQUE constraint failed: t5.first_column_with_long_name, t5.second_column_with_long_name, t5.third_column_with_long_name, t5.fourth_column_with_long_name, t5.fifth_column_with_long_name, t5.sixth_column_with_long_name}}
+verify_ex_errcode unique-5.2b SQLITE_CONSTRAINT_UNIQUE
+
+
+finish_test
diff --git a/test/unique2.test b/test/unique2.test
new file mode 100644
index 0000000000000000000000000000000000000000..0ec0dd3db2d7c355c36e6088f2620ab132577256
--- /dev/null
+++ b/test/unique2.test
@@ -0,0 +1,86 @@
+# 2014-07-30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the CREATE UNIQUE INDEX statement
+# to verify that ticket 9a6daf340df99ba93c53bcf8fa83d9f28040d2a8
+# has been fixed:
+#
+#  drh added on 2014-07-30 12:33:04:
+#
+#  The CREATE UNIQUE INDEX on the third line below does not fail even
+#  though the x column values are not all unique.
+#
+#     CREATE TABLE t1(x NOT NULL);
+#     INSERT INTO t1 VALUES(1),(2),(2),(3);
+#     CREATE UNIQUE INDEX t1x ON t1(x);
+#
+# If the index is created before the INSERT, then uniqueness is enforced
+# at the point of the INSERT. Note that the NOT NULL on the indexed column
+# seems to be required in order to exhibit this bug.
+#
+# "PRAGMA integrity_check" does not detect the resulting malformed database.
+# That might be considered a separate issue.
+#
+# Bisecting shows that this problem was introduced by the addition of
+#  WITHOUT ROWID support in version 3.8.2, specifically in check-in
+# [c80e229dd9c1230] on 2013-11-07. This problem was reported on the mailing
+# list by Pavel Pimenov.  and primary keys, and the UNIQUE constraint
+# on table columns
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+foreach {id sql} {
+   1 {CREATE TABLE t1(x TEXT PRIMARY KEY, y NOT NULL) WITHOUT ROWID}
+   2 {CREATE TABLE t1(x TEXT PRIMARY KEY, y NOT NULL)}
+   3 {CREATE TABLE t1(x TEXT PRIMARY KEY, y) WITHOUT ROWID}
+   4 {CREATE TABLE t1(x TEXT PRIMARY KEY, y)}
+} {
+  do_test $id.1 {
+    db eval {DROP TABLE IF EXISTS t1}
+    db eval $sql
+    db eval {INSERT INTO t1(x,y) VALUES(1,1),(2,2),(3,2),(4,3)}
+  } {}
+  do_test $id.2 {
+    catchsql {CREATE UNIQUE INDEX t1y ON t1(y)}
+  } {1 {UNIQUE constraint failed: t1.y}}
+}
+
+foreach {id sql} {
+   5 {CREATE TABLE t1(w,x,y NOT NULL,z NOT NULL,PRIMARY KEY(w,x)) WITHOUT ROWID}
+   6 {CREATE TABLE t1(w,x,y NOT NULL,z NOT NULL,PRIMARY KEY(w,x))}
+   7 {CREATE TABLE t1(w,x,y NOT NULL,z,PRIMARY KEY(w,x)) WITHOUT ROWID}
+   8 {CREATE TABLE t1(w,x,y NOT NULL,z,PRIMARY KEY(w,x))}
+   9 {CREATE TABLE t1(w,x,y,z NOT NULL,PRIMARY KEY(w,x)) WITHOUT ROWID}
+  10 {CREATE TABLE t1(w,x,y,z NOT NULL,PRIMARY KEY(w,x))}
+  11 {CREATE TABLE t1(w,x,y,z,PRIMARY KEY(w,x)) WITHOUT ROWID}
+  12 {CREATE TABLE t1(w,x,y,z,PRIMARY KEY(w,x))}
+} {
+  do_test $id.1 {
+    db eval {DROP TABLE IF EXISTS t1}
+    db eval $sql
+    db eval {INSERT INTO t1(w,x,y,z) VALUES(1,2,3,4),(2,3,3,4)}
+  } {}
+  do_test $id.2 {
+    catchsql {CREATE UNIQUE INDEX t1yz ON t1(y,z)}
+  } {1 {UNIQUE constraint failed: t1.y, t1.z}}
+}
+
+do_catchsql_test 13.1 {
+  CREATE TABLE err1(a,b,c,UNIQUE(rowid));
+} {1 {no such column: rowid}}
+do_catchsql_test 13.2 {
+  CREATE TABLE err1(a,b,c,PRIMARY KEY(rowid));
+} {1 {no such column: rowid}}
+
+
+finish_test
diff --git a/test/unixexcl.test b/test/unixexcl.test
new file mode 100644
index 0000000000000000000000000000000000000000..8e9c4644d154f090dd804b4979cb6b7010a667a2
--- /dev/null
+++ b/test/unixexcl.test
@@ -0,0 +1,129 @@
+# 2011 March 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains tests for the "unix-excl" VFS module (part of 
+# os_unix.c).
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+source $testdir/malloc_common.tcl
+
+if {$::tcl_platform(platform)!="unix" || [info commands test_syscall]==""} {
+  finish_test
+  return
+} 
+set testprefix unixexcl
+
+
+
+# Test that when using VFS "unix-excl", the first time the database is read
+# a process-wide exclusive lock is taken on it. This means other connections
+# within the process may still access the db normally, but connections from
+# outside the process cannot.
+#
+do_multiclient_test tn {
+  do_test unixexcl-1.$tn.1 {
+    sql1 {
+      CREATE TABLE t1(a, b);
+      INSERT INTO t1 VALUES('hello', 'world');
+    }
+  } {}
+  do_test unixexcl-1.$tn.2 { sql2 { SELECT * FROM t1 } } {hello world}
+  do_test unixexcl-1.$tn.3 {
+    code1 {
+      db close
+      sqlite3 db test.db -vfs unix-excl
+      db eval { SELECT * FROM t1 }
+    }
+  } {hello world}
+  if {$tn==1} {
+    do_test unixexcl-1.$tn.4.multiproc { 
+      csql2 { SELECT * FROM t1 } 
+    } {1 {database is locked}}
+  } else {
+    do_test unixexcl-1.$tn.4.singleproc { 
+      csql2 { SELECT * FROM t1 } 
+    } {0 {hello world}}
+  }
+}
+
+# Test that when using VFS "unix-excl", if a file is opened in read-only mode
+# the behaviour is the same as if VFS "unix" were used.
+#
+do_multiclient_test tn {
+  do_test unixexcl-2.$tn.1 {
+    sql1 {
+      CREATE TABLE t1(a, b);
+      INSERT INTO t1 VALUES('hello', 'world');
+    }
+  } {}
+  do_test unixexcl-2.$tn.2 { sql2 { SELECT * FROM t1 } } {hello world}
+  do_test unixexcl-2.$tn.3 {
+    code1 {
+      db close
+      sqlite3 db test.db -readonly yes -vfs unix-excl
+      db eval { SELECT * FROM t1 }
+    }
+  } {hello world}
+  do_test unixexcl-2.$tn.4 { 
+    csql2 { SELECT * FROM t1 } 
+  } {0 {hello world}}
+}
+
+do_multiclient_test tn {
+  do_test unixexcl-3.$tn.1 {
+    code1 { db close; sqlite3 db file:test.db?psow=0 -vfs unix-excl -uri 1 }
+    code2 { db2 close; sqlite3 db2 file:test.db?psow=0 -vfs unix-excl -uri 1 }
+    sql1 {
+      PRAGMA auto_vacuum = 0;
+      PRAGMA journal_mode = WAL;
+      PRAGMA synchronous = FULL;
+      CREATE TABLE t1(a, b);
+      INSERT INTO t1 VALUES(1, 2);
+    }
+  } {wal}
+
+  if {$tn==1} {
+    do_test unixexcl-3.$tn.1.multiproc {
+      csql2 { SELECT * FROM t1; }
+    } {1 {database is locked}}
+  } else {
+    do_test unixexcl-3.$tn.1.singleproc {
+      sql2 { SELECT * FROM t1; }
+    } {1 2}
+
+    do_test unixexcl-3.$tn.2 {
+      sql2 { 
+        BEGIN;
+          SELECT * FROM t1;
+      }
+    } {1 2}
+    do_test unixexcl-3.$tn.3 {
+      sql1 { PRAGMA wal_checkpoint; INSERT INTO t1 VALUES(3, 4); }
+    } {0 5 5}
+    do_test unixexcl-3.$tn.4 {
+      sql2 { SELECT * FROM t1; }
+    } {1 2}
+    do_test unixexcl-3.$tn.5 {
+      sql1 { SELECT * FROM t1; }
+    } {1 2 3 4}
+    do_test unixexcl-3.$tn.6 {
+      sql2 { COMMIT; SELECT * FROM t1; }
+    } {1 2 3 4}
+    do_test unixexcl-3.$tn.7 {
+      sql1 { PRAGMA wal_checkpoint; }
+    } {0 7 7}
+  }
+}
+
+finish_test
diff --git a/test/unordered.test b/test/unordered.test
new file mode 100644
index 0000000000000000000000000000000000000000..80595d95f7fd378e19cc848bcd391f9571b6fd63
--- /dev/null
+++ b/test/unordered.test
@@ -0,0 +1,69 @@
+# 2011 April 9
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+set testprefix unordered
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b);
+  CREATE INDEX i1 ON t1(a);
+  INSERT INTO t1 VALUES(1, 'xxx');
+  INSERT INTO t1 SELECT a+1, b FROM t1;
+  INSERT INTO t1 SELECT a+2, b FROM t1;
+  INSERT INTO t1 SELECT a+4, b FROM t1;
+  INSERT INTO t1 SELECT a+8, b FROM t1;
+  INSERT INTO t1 SELECT a+16, b FROM t1;
+  INSERT INTO t1 SELECT a+32, b FROM t1;
+  INSERT INTO t1 SELECT a+64, b FROM t1;
+  ANALYZE;
+} {}
+
+foreach idxmode {ordered unordered} {
+  catchsql { DELETE FROM sqlite_stat2 }
+  catchsql { DELETE FROM sqlite_stat3 }
+  if {$idxmode == "unordered"} {
+    execsql { UPDATE sqlite_stat1 SET stat = stat || ' unordered' }
+  }
+  db close
+  sqlite3 db test.db
+  foreach {tn sql r(ordered) r(unordered)} {
+    1   "SELECT * FROM t1 ORDER BY a"
+        {SCAN t1 USING INDEX i1}
+        {SCAN t1*USE TEMP B-TREE FOR ORDER BY}
+    2   "SELECT * FROM t1 WHERE a > 100"
+        {SEARCH t1 USING INDEX i1 (a>?)}
+        {SCAN t1}
+    3   "SELECT * FROM t1 WHERE a = ? ORDER BY rowid"
+        {SEARCH t1 USING INDEX i1 (a=?)}
+        {SEARCH t1 USING INDEX i1 (a=?)*USE TEMP B-TREE FOR ORDER BY}
+    4   "SELECT max(a) FROM t1"
+        {SEARCH t1 USING COVERING INDEX i1}
+        {SEARCH t1}
+    5   "SELECT group_concat(b) FROM t1 GROUP BY a"
+        {SCAN t1 USING INDEX i1}
+        {SCAN t1*USE TEMP B-TREE FOR GROUP BY}
+
+    6   "SELECT * FROM t1 WHERE a = ?"
+        {SEARCH t1 USING INDEX i1 (a=?)}
+        {SEARCH t1 USING INDEX i1 (a=?)}
+    7   "SELECT count(*) FROM t1"
+        {SCAN t1 USING COVERING INDEX i1}
+        {SCAN t1}
+  } {
+    do_eqp_test 1.$idxmode.$tn $sql $r($idxmode)
+  }
+}
+
+finish_test
diff --git a/test/update.test b/test/update.test
new file mode 100644
index 0000000000000000000000000000000000000000..bf7666662ab22110c47470aced5d83a21a223c6b
--- /dev/null
+++ b/test/update.test
@@ -0,0 +1,790 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the UPDATE statement.
+#
+# $Id: update.test,v 1.19 2008/04/10 18:44:36 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Try to update an non-existent table
+#
+do_test update-1.1 {
+  set v [catch {execsql {UPDATE test1 SET f2=5 WHERE f1<1}} msg]
+  lappend v $msg
+} {1 {no such table: test1}}
+
+# Try to update a read-only table
+#
+do_test update-2.1 {
+  set v [catch \
+       {execsql {UPDATE sqlite_master SET name='xyz' WHERE name='123'}} msg]
+  lappend v $msg
+} {1 {table sqlite_master may not be modified}}
+
+# Create a table to work with
+#
+do_test update-3.1 {
+  execsql {CREATE TABLE test1(f1 int,f2 int)}
+  for {set i 1} {$i<=10} {incr i} {
+    set sql "INSERT INTO test1 VALUES($i,[expr {1<<$i}])"
+    execsql $sql
+  }
+  execsql {SELECT * FROM test1 ORDER BY f1}
+} {1 2 2 4 3 8 4 16 5 32 6 64 7 128 8 256 9 512 10 1024}
+
+# Unknown column name in an expression
+#
+do_test update-3.2 {
+  set v [catch {execsql {UPDATE test1 SET f1=f3*2 WHERE f2==32}} msg]
+  lappend v $msg
+} {1 {no such column: f3}}
+do_test update-3.3 {
+  set v [catch {execsql {UPDATE test1 SET f1=test2.f1*2 WHERE f2==32}} msg]
+  lappend v $msg
+} {1 {no such column: test2.f1}}
+do_test update-3.4 {
+  set v [catch {execsql {UPDATE test1 SET f3=f1*2 WHERE f2==32}} msg]
+  lappend v $msg
+} {1 {no such column: f3}}
+
+# Actually do some updates
+#
+do_test update-3.5 {
+  execsql {UPDATE test1 SET f2=f2*3}
+} {}
+do_test update-3.5.1 {
+  db changes
+} {10}
+
+# verify that SELECT does not reset the change counter
+do_test update-3.5.2 {
+  db eval {SELECT count(*) FROM test1}
+} {10}
+do_test update-3.5.3 {
+  db changes
+} {10}
+
+do_test update-3.6 {
+  execsql {SELECT * FROM test1 ORDER BY f1}
+} {1 6 2 12 3 24 4 48 5 96 6 192 7 384 8 768 9 1536 10 3072}
+do_test update-3.7 {
+  execsql {PRAGMA count_changes=on}
+  execsql {UPDATE test1 SET f2=f2/3 WHERE f1<=5}
+} {5}
+do_test update-3.8 {
+  execsql {SELECT * FROM test1 ORDER BY f1}
+} {1 2 2 4 3 8 4 16 5 32 6 192 7 384 8 768 9 1536 10 3072}
+do_test update-3.9 {
+  execsql {UPDATE test1 SET f2=f2/3 WHERE f1>5}
+} {5}
+do_test update-3.10 {
+  execsql {SELECT * FROM test1 ORDER BY f1}
+} {1 2 2 4 3 8 4 16 5 32 6 64 7 128 8 256 9 512 10 1024}
+
+# Swap the values of f1 and f2 for all elements
+#
+do_test update-3.11 {
+  execsql {UPDATE test1 SET F2=f1, F1=f2}
+} {10}
+do_test update-3.12 {
+  execsql {SELECT * FROM test1 ORDER BY F1}
+} {2 1 4 2 8 3 16 4 32 5 64 6 128 7 256 8 512 9 1024 10}
+do_test update-3.13 {
+  execsql {PRAGMA count_changes=off}
+  execsql {UPDATE test1 SET F2=f1, F1=f2}
+} {}
+do_test update-3.14 {
+  execsql {SELECT * FROM test1 ORDER BY F1}
+} {1 2 2 4 3 8 4 16 5 32 6 64 7 128 8 256 9 512 10 1024}
+
+# Create duplicate entries and make sure updating still
+# works.
+#
+do_test update-4.0 {
+  execsql {
+    DELETE FROM test1 WHERE f1<=5;
+    INSERT INTO test1(f1,f2) VALUES(8,88);
+    INSERT INTO test1(f1,f2) VALUES(8,888);
+    INSERT INTO test1(f1,f2) VALUES(77,128);
+    INSERT INTO test1(f1,f2) VALUES(777,128);
+  }
+  execsql {SELECT * FROM test1 ORDER BY f1,f2}
+} {6 64 7 128 8 88 8 256 8 888 9 512 10 1024 77 128 777 128}
+do_test update-4.1 {
+  execsql {UPDATE test1 SET f2=f2+1 WHERE f1==8}
+  execsql {SELECT * FROM test1 ORDER BY f1,f2}
+} {6 64 7 128 8 89 8 257 8 889 9 512 10 1024 77 128 777 128}
+do_test update-4.2 {
+  execsql {UPDATE test1 SET f2=f2-1 WHERE f1==8 and f2>800}
+  execsql {SELECT * FROM test1 ORDER BY f1,f2}
+} {6 64 7 128 8 89 8 257 8 888 9 512 10 1024 77 128 777 128}
+do_test update-4.3 {
+  execsql {UPDATE test1 SET f2=f2-1 WHERE f1==8 and f2<800}
+  execsql {SELECT * FROM test1 ORDER BY f1,f2}
+} {6 64 7 128 8 88 8 256 8 888 9 512 10 1024 77 128 777 128}
+do_test update-4.4 {
+  execsql {UPDATE test1 SET f1=f1+1 WHERE f2==128}
+  execsql {SELECT * FROM test1 ORDER BY f1,f2}
+} {6 64 8 88 8 128 8 256 8 888 9 512 10 1024 78 128 778 128}
+do_test update-4.5 {
+  execsql {UPDATE test1 SET f1=f1-1 WHERE f1>100 and f2==128}
+  execsql {SELECT * FROM test1 ORDER BY f1,f2}
+} {6 64 8 88 8 128 8 256 8 888 9 512 10 1024 78 128 777 128}
+do_test update-4.6 {
+  execsql {
+    PRAGMA count_changes=on;
+    UPDATE test1 SET f1=f1-1 WHERE f1<=100 and f2==128;
+  }
+} {2}
+do_test update-4.7 {
+  execsql {
+    PRAGMA count_changes=off;
+    SELECT * FROM test1 ORDER BY f1,f2
+  }
+} {6 64 7 128 8 88 8 256 8 888 9 512 10 1024 77 128 777 128}
+
+# Repeat the previous sequence of tests with an index.
+#
+do_test update-5.0 {
+  execsql {CREATE INDEX idx1 ON test1(f1)}
+  execsql {SELECT * FROM test1 ORDER BY f1,f2}
+} {6 64 7 128 8 88 8 256 8 888 9 512 10 1024 77 128 777 128}
+do_test update-5.1 {
+  execsql {UPDATE test1 SET f2=f2+1 WHERE f1==8}
+  execsql {SELECT * FROM test1 ORDER BY f1,f2}
+} {6 64 7 128 8 89 8 257 8 889 9 512 10 1024 77 128 777 128}
+do_test update-5.2 {
+  execsql {UPDATE test1 SET f2=f2-1 WHERE f1==8 and f2>800}
+  execsql {SELECT * FROM test1 ORDER BY f1,f2}
+} {6 64 7 128 8 89 8 257 8 888 9 512 10 1024 77 128 777 128}
+do_test update-5.3 {
+  execsql {UPDATE test1 SET f2=f2-1 WHERE f1==8 and f2<800}
+  execsql {SELECT * FROM test1 ORDER BY f1,f2}
+} {6 64 7 128 8 88 8 256 8 888 9 512 10 1024 77 128 777 128}
+do_test update-5.4 {
+  execsql {UPDATE test1 SET f1=f1+1 WHERE f2==128}
+  execsql {SELECT * FROM test1 ORDER BY f1,f2}
+} {6 64 8 88 8 128 8 256 8 888 9 512 10 1024 78 128 778 128}
+do_test update-5.4.1 {
+  execsql {SELECT * FROM test1 WHERE f1==78 ORDER BY f1,f2}
+} {78 128}
+do_test update-5.4.2 {
+  execsql {SELECT * FROM test1 WHERE f1==778 ORDER BY f1,f2}
+} {778 128}
+do_test update-5.4.3 {
+  execsql {SELECT * FROM test1 WHERE f1==8 ORDER BY f1,f2}
+} {8 88 8 128 8 256 8 888}
+do_test update-5.5 {
+  execsql {UPDATE test1 SET f1=f1-1 WHERE f1>100 and f2==128}
+} {}
+do_test update-5.5.1 {
+  execsql {SELECT * FROM test1 ORDER BY f1,f2}
+} {6 64 8 88 8 128 8 256 8 888 9 512 10 1024 78 128 777 128}
+do_test update-5.5.2 {
+  execsql {SELECT * FROM test1 WHERE f1==78 ORDER BY f1,f2}
+} {78 128}
+do_test update-5.5.3 {
+  execsql {SELECT * FROM test1 WHERE f1==778 ORDER BY f1,f2}
+} {}
+do_test update-5.5.4 {
+  execsql {SELECT * FROM test1 WHERE f1==777 ORDER BY f1,f2}
+} {777 128}
+do_test update-5.5.5 {
+  execsql {SELECT * FROM test1 WHERE f1==8 ORDER BY f1,f2}
+} {8 88 8 128 8 256 8 888}
+do_test update-5.6 {
+  execsql {
+    PRAGMA count_changes=on;
+    UPDATE test1 SET f1=f1-1 WHERE f1<=100 and f2==128;
+  }
+} {2}
+do_test update-5.6.1 {
+  execsql {
+    PRAGMA count_changes=off;
+    SELECT * FROM test1 ORDER BY f1,f2
+  }
+} {6 64 7 128 8 88 8 256 8 888 9 512 10 1024 77 128 777 128}
+do_test update-5.6.2 {
+  execsql {SELECT * FROM test1 WHERE f1==77 ORDER BY f1,f2}
+} {77 128}
+do_test update-5.6.3 {
+  execsql {SELECT * FROM test1 WHERE f1==778 ORDER BY f1,f2}
+} {}
+do_test update-5.6.4 {
+  execsql {SELECT * FROM test1 WHERE f1==777 ORDER BY f1,f2}
+} {777 128}
+do_test update-5.6.5 {
+  execsql {SELECT * FROM test1 WHERE f1==8 ORDER BY f1,f2}
+} {8 88 8 256 8 888}
+
+# Repeat the previous sequence of tests with a different index.
+#
+execsql {PRAGMA synchronous=FULL}
+do_test update-6.0 {
+  execsql {DROP INDEX idx1}
+  execsql {CREATE INDEX idx1 ON test1(f2)}
+  execsql {SELECT * FROM test1 ORDER BY f1,f2}
+} {6 64 7 128 8 88 8 256 8 888 9 512 10 1024 77 128 777 128}
+do_test update-6.1 {
+  execsql {UPDATE test1 SET f2=f2+1 WHERE f1==8}
+  execsql {SELECT * FROM test1 ORDER BY f1,f2}
+} {6 64 7 128 8 89 8 257 8 889 9 512 10 1024 77 128 777 128}
+do_test update-6.1.1 {
+  execsql {SELECT * FROM test1 WHERE f1==8 ORDER BY f1,f2}
+} {8 89 8 257 8 889}
+do_test update-6.1.2 {
+  execsql {SELECT * FROM test1 WHERE f2==89 ORDER BY f1,f2}
+} {8 89}
+do_test update-6.1.3 {
+  execsql {SELECT * FROM test1 WHERE f1==88 ORDER BY f1,f2}
+} {}
+do_test update-6.2 {
+  execsql {UPDATE test1 SET f2=f2-1 WHERE f1==8 and f2>800}
+  execsql {SELECT * FROM test1 ORDER BY f1,f2}
+} {6 64 7 128 8 89 8 257 8 888 9 512 10 1024 77 128 777 128}
+do_test update-6.3 {
+  execsql {UPDATE test1 SET f2=f2-1 WHERE f1==8 and f2<800}
+  execsql {SELECT * FROM test1 ORDER BY f1,f2}
+} {6 64 7 128 8 88 8 256 8 888 9 512 10 1024 77 128 777 128}
+do_test update-6.3.1 {
+  execsql {SELECT * FROM test1 WHERE f1==8 ORDER BY f1,f2}
+} {8 88 8 256 8 888}
+do_test update-6.3.2 {
+  execsql {SELECT * FROM test1 WHERE f2==89 ORDER BY f1,f2}
+} {}
+do_test update-6.3.3 {
+  execsql {SELECT * FROM test1 WHERE f2==88 ORDER BY f1,f2}
+} {8 88}
+do_test update-6.4 {
+  execsql {UPDATE test1 SET f1=f1+1 WHERE f2==128}
+  execsql {SELECT * FROM test1 ORDER BY f1,f2}
+} {6 64 8 88 8 128 8 256 8 888 9 512 10 1024 78 128 778 128}
+do_test update-6.4.1 {
+  execsql {SELECT * FROM test1 WHERE f1==78 ORDER BY f1,f2}
+} {78 128}
+do_test update-6.4.2 {
+  execsql {SELECT * FROM test1 WHERE f1==778 ORDER BY f1,f2}
+} {778 128}
+do_test update-6.4.3 {
+  execsql {SELECT * FROM test1 WHERE f1==8 ORDER BY f1,f2}
+} {8 88 8 128 8 256 8 888}
+do_test update-6.5 {
+  execsql {UPDATE test1 SET f1=f1-1 WHERE f1>100 and f2==128}
+  execsql {SELECT * FROM test1 ORDER BY f1,f2}
+} {6 64 8 88 8 128 8 256 8 888 9 512 10 1024 78 128 777 128}
+do_test update-6.5.1 {
+  execsql {SELECT * FROM test1 WHERE f1==78 ORDER BY f1,f2}
+} {78 128}
+do_test update-6.5.2 {
+  execsql {SELECT * FROM test1 WHERE f1==778 ORDER BY f1,f2}
+} {}
+do_test update-6.5.3 {
+  execsql {SELECT * FROM test1 WHERE f1==777 ORDER BY f1,f2}
+} {777 128}
+do_test update-6.5.4 {
+  execsql {SELECT * FROM test1 WHERE f1==8 ORDER BY f1,f2}
+} {8 88 8 128 8 256 8 888}
+do_test update-6.6 {
+  execsql {UPDATE test1 SET f1=f1-1 WHERE f1<=100 and f2==128}
+  execsql {SELECT * FROM test1 ORDER BY f1,f2}
+} {6 64 7 128 8 88 8 256 8 888 9 512 10 1024 77 128 777 128}
+do_test update-6.6.1 {
+  execsql {SELECT * FROM test1 WHERE f1==77 ORDER BY f1,f2}
+} {77 128}
+do_test update-6.6.2 {
+  execsql {SELECT * FROM test1 WHERE f1==778 ORDER BY f1,f2}
+} {}
+do_test update-6.6.3 {
+  execsql {SELECT * FROM test1 WHERE f1==777 ORDER BY f1,f2}
+} {777 128}
+do_test update-6.6.4 {
+  execsql {SELECT * FROM test1 WHERE f1==8 ORDER BY f1,f2}
+} {8 88 8 256 8 888}
+
+# Repeat the previous sequence of tests with multiple
+# indices
+#
+do_test update-7.0 {
+  execsql {CREATE INDEX idx2 ON test1(f2)}
+  execsql {CREATE INDEX idx3 ON test1(f1,f2)}
+  execsql {SELECT * FROM test1 ORDER BY f1,f2}
+} {6 64 7 128 8 88 8 256 8 888 9 512 10 1024 77 128 777 128}
+do_test update-7.1 {
+  execsql {UPDATE test1 SET f2=f2+1 WHERE f1==8}
+  execsql {SELECT * FROM test1 ORDER BY f1,f2}
+} {6 64 7 128 8 89 8 257 8 889 9 512 10 1024 77 128 777 128}
+do_test update-7.1.1 {
+  execsql {SELECT * FROM test1 WHERE f1==8 ORDER BY f1,f2}
+} {8 89 8 257 8 889}
+do_test update-7.1.2 {
+  execsql {SELECT * FROM test1 WHERE f2==89 ORDER BY f1,f2}
+} {8 89}
+do_test update-7.1.3 {
+  execsql {SELECT * FROM test1 WHERE f1==88 ORDER BY f1,f2}
+} {}
+do_test update-7.2 {
+  execsql {UPDATE test1 SET f2=f2-1 WHERE f1==8 and f2>800}
+  execsql {SELECT * FROM test1 ORDER BY f1,f2}
+} {6 64 7 128 8 89 8 257 8 888 9 512 10 1024 77 128 777 128}
+do_test update-7.3 {
+  # explain {UPDATE test1 SET f2=f2-1 WHERE f1==8 and F2<300}
+  execsql {UPDATE test1 SET f2=f2-1 WHERE f1==8 and f2<800}
+  execsql {SELECT * FROM test1 ORDER BY f1,f2}
+} {6 64 7 128 8 88 8 256 8 888 9 512 10 1024 77 128 777 128}
+do_test update-7.3.1 {
+  execsql {SELECT * FROM test1 WHERE f1==8 ORDER BY f1,f2}
+} {8 88 8 256 8 888}
+do_test update-7.3.2 {
+  execsql {SELECT * FROM test1 WHERE f2==89 ORDER BY f1,f2}
+} {}
+do_test update-7.3.3 {
+  execsql {SELECT * FROM test1 WHERE f2==88 ORDER BY f1,f2}
+} {8 88}
+do_test update-7.4 {
+  execsql {UPDATE test1 SET f1=f1+1 WHERE f2==128}
+  execsql {SELECT * FROM test1 ORDER BY f1,f2}
+} {6 64 8 88 8 128 8 256 8 888 9 512 10 1024 78 128 778 128}
+do_test update-7.4.1 {
+  execsql {SELECT * FROM test1 WHERE f1==78 ORDER BY f1,f2}
+} {78 128}
+do_test update-7.4.2 {
+  execsql {SELECT * FROM test1 WHERE f1==778 ORDER BY f1,f2}
+} {778 128}
+do_test update-7.4.3 {
+  execsql {SELECT * FROM test1 WHERE f1==8 ORDER BY f1,f2}
+} {8 88 8 128 8 256 8 888}
+do_test update-7.5 {
+  execsql {UPDATE test1 SET f1=f1-1 WHERE f1>100 and f2==128}
+  execsql {SELECT * FROM test1 ORDER BY f1,f2}
+} {6 64 8 88 8 128 8 256 8 888 9 512 10 1024 78 128 777 128}
+do_test update-7.5.1 {
+  execsql {SELECT * FROM test1 WHERE f1==78 ORDER BY f1,f2}
+} {78 128}
+do_test update-7.5.2 {
+  execsql {SELECT * FROM test1 WHERE f1==778 ORDER BY f1,f2}
+} {}
+do_test update-7.5.3 {
+  execsql {SELECT * FROM test1 WHERE f1==777 ORDER BY f1,f2}
+} {777 128}
+do_test update-7.5.4 {
+  execsql {SELECT * FROM test1 WHERE f1==8 ORDER BY f1,f2}
+} {8 88 8 128 8 256 8 888}
+do_test update-7.6 {
+  execsql {UPDATE test1 SET f1=f1-1 WHERE f1<=100 and f2==128}
+  execsql {SELECT * FROM test1 ORDER BY f1,f2}
+} {6 64 7 128 8 88 8 256 8 888 9 512 10 1024 77 128 777 128}
+do_test update-7.6.1 {
+  execsql {SELECT * FROM test1 WHERE f1==77 ORDER BY f1,f2}
+} {77 128}
+do_test update-7.6.2 {
+  execsql {SELECT * FROM test1 WHERE f1==778 ORDER BY f1,f2}
+} {}
+do_test update-7.6.3 {
+  execsql {SELECT * FROM test1 WHERE f1==777 ORDER BY f1,f2}
+} {777 128}
+do_test update-7.6.4 {
+  execsql {SELECT * FROM test1 WHERE f1==8 ORDER BY f1,f2}
+} {8 88 8 256 8 888}
+
+# Error messages
+#
+do_test update-9.1 {
+  set v [catch {execsql {
+    UPDATE test1 SET x=11 WHERE f1=1025
+  }} msg]
+  lappend v $msg
+} {1 {no such column: x}}
+do_test update-9.2 {
+  set v [catch {execsql {
+    UPDATE test1 SET f1=x(11) WHERE f1=1025
+  }} msg]
+  lappend v $msg
+} {1 {no such function: x}}
+do_test update-9.3 {
+  set v [catch {execsql {
+    UPDATE test1 SET f1=11 WHERE x=1025
+  }} msg]
+  lappend v $msg
+} {1 {no such column: x}}
+do_test update-9.4 {
+  set v [catch {execsql {
+    UPDATE test1 SET f1=11 WHERE x(f1)=1025
+  }} msg]
+  lappend v $msg
+} {1 {no such function: x}}
+
+# Try doing updates on a unique column where the value does not
+# really change.
+#
+do_test update-10.1 {
+  execsql {
+    DROP TABLE test1;
+    CREATE TABLE t1(
+       a integer primary key,
+       b UNIQUE, 
+       c, d,
+       e, f,
+       UNIQUE(c,d)
+    );
+    INSERT INTO t1 VALUES(1,2,3,4,5,6);
+    INSERT INTO t1 VALUES(2,3,4,4,6,7);
+    SELECT * FROM t1
+  }
+} {1 2 3 4 5 6 2 3 4 4 6 7}
+do_test update-10.2 {
+  catchsql {
+    UPDATE t1 SET a=1, e=9 WHERE f=6;
+    SELECT * FROM t1;
+  }
+} {0 {1 2 3 4 9 6 2 3 4 4 6 7}}
+do_test update-10.3 {
+  catchsql {
+    UPDATE t1 SET a=1, e=10 WHERE f=7;
+    SELECT * FROM t1;
+  }
+} {1 {UNIQUE constraint failed: t1.a}}
+do_test update-10.4 {
+  catchsql {
+    SELECT * FROM t1;
+  }
+} {0 {1 2 3 4 9 6 2 3 4 4 6 7}}
+do_test update-10.5 {
+  catchsql {
+    UPDATE t1 SET b=2, e=11 WHERE f=6;
+    SELECT * FROM t1;
+  }
+} {0 {1 2 3 4 11 6 2 3 4 4 6 7}}
+do_test update-10.6 {
+  catchsql {
+    UPDATE t1 SET b=2, e=12 WHERE f=7;
+    SELECT * FROM t1;
+  }
+} {1 {UNIQUE constraint failed: t1.b}}
+do_test update-10.7 {
+  catchsql {
+    SELECT * FROM t1;
+  }
+} {0 {1 2 3 4 11 6 2 3 4 4 6 7}}
+do_test update-10.8 {
+  catchsql {
+    UPDATE t1 SET c=3, d=4, e=13 WHERE f=6;
+    SELECT * FROM t1;
+  }
+} {0 {1 2 3 4 13 6 2 3 4 4 6 7}}
+do_test update-10.9 {
+  catchsql {
+    UPDATE t1 SET c=3, d=4, e=14 WHERE f=7;
+    SELECT * FROM t1;
+  }
+} {1 {UNIQUE constraint failed: t1.c, t1.d}}
+do_test update-10.10 {
+  catchsql {
+    SELECT * FROM t1;
+  }
+} {0 {1 2 3 4 13 6 2 3 4 4 6 7}}
+
+# Make sure we can handle a subquery in the where clause.
+#
+ifcapable subquery {
+  do_test update-11.1 {
+    execsql {
+      UPDATE t1 SET e=e+1 WHERE b IN (SELECT b FROM t1);
+      SELECT b,e FROM t1;
+    }
+  } {2 14 3 7}
+  do_test update-11.2 {
+    execsql {
+      UPDATE t1 SET e=e+1 WHERE a IN (SELECT a FROM t1);
+      SELECT a,e FROM t1;
+    }
+  } {1 15 2 8}
+  do_test update-11.3 {
+    execsql {
+      UPDATE t1 AS xyz SET e=e+1 WHERE xyz.a IN (SELECT a FROM t1);
+      SELECT a,e FROM t1;
+    }
+  } {1 16 2 9}
+  do_test update-11.4 {
+    execsql {
+      UPDATE t1 AS xyz SET e=e+1 WHERE EXISTS(SELECT 1 FROM t1 WHERE t1.a<xyz.a);
+      SELECT a,e FROM t1;
+    }
+  } {1 16 2 10}
+}
+
+integrity_check update-12.1
+
+# Ticket 602.  Updates should occur in the same order as the records
+# were discovered in the WHERE clause.
+#
+do_test update-13.1 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t2(a);
+    INSERT INTO t2 VALUES(1);
+    INSERT INTO t2 VALUES(2);
+    INSERT INTO t2 SELECT a+2 FROM t2;
+    INSERT INTO t2 SELECT a+4 FROM t2;
+    INSERT INTO t2 SELECT a+8 FROM t2;
+    INSERT INTO t2 SELECT a+16 FROM t2;
+    INSERT INTO t2 SELECT a+32 FROM t2;
+    INSERT INTO t2 SELECT a+64 FROM t2;
+    INSERT INTO t2 SELECT a+128 FROM t2;
+    INSERT INTO t2 SELECT a+256 FROM t2;
+    INSERT INTO t2 SELECT a+512 FROM t2;
+    INSERT INTO t2 SELECT a+1024 FROM t2;
+    COMMIT;
+    SELECT count(*) FROM t2;
+  }
+} {2048}
+do_test update-13.2 {
+  execsql {
+    SELECT count(*) FROM t2 WHERE a=rowid;
+  }
+} {2048}
+do_test update-13.3 {
+  execsql {
+    UPDATE t2 SET rowid=rowid-1;
+    SELECT count(*) FROM t2 WHERE a=rowid+1;
+  }
+} {2048}
+do_test update-13.3 {
+  execsql {
+    UPDATE t2 SET rowid=rowid+10000;
+    UPDATE t2 SET rowid=rowid-9999;
+    SELECT count(*) FROM t2 WHERE a=rowid;
+  }
+} {2048}
+do_test update-13.4 {
+  execsql {
+    BEGIN;
+    INSERT INTO t2 SELECT a+2048 FROM t2;
+    INSERT INTO t2 SELECT a+4096 FROM t2;
+    INSERT INTO t2 SELECT a+8192 FROM t2;
+    SELECT count(*) FROM t2 WHERE a=rowid;
+    COMMIT;
+  }
+} 16384
+do_test update-13.5 {
+  execsql {
+    UPDATE t2 SET rowid=rowid-1;
+    SELECT count(*) FROM t2 WHERE a=rowid+1;
+  }
+} 16384
+
+integrity_check update-13.6
+
+ifcapable {trigger} {
+# Test for proper detection of malformed WHEN clauses on UPDATE triggers.
+#
+do_test update-14.1 {
+  execsql {
+    CREATE TABLE t3(a,b,c);
+    CREATE TRIGGER t3r1 BEFORE UPDATE on t3 WHEN nosuchcol BEGIN
+      SELECT 'illegal WHEN clause';
+    END;
+  }
+} {}
+do_test update-14.2 {
+  catchsql {
+    UPDATE t3 SET a=1;
+  }
+} {1 {no such column: nosuchcol}}
+do_test update-14.3 {
+  execsql {
+    CREATE TABLE t4(a,b,c);
+    CREATE TRIGGER t4r1 AFTER UPDATE on t4 WHEN nosuchcol BEGIN
+      SELECT 'illegal WHEN clause';
+    END;
+  }
+} {}
+do_test update-14.4 {
+  catchsql {
+    UPDATE t4 SET a=1;
+  }
+} {1 {no such column: nosuchcol}}
+
+} ;# ifcapable {trigger}
+
+# Ticket [https://www.sqlite.org/src/tktview/43107840f1c02] on 2014-10-29
+# An assertion fault on UPDATE
+#
+ifcapable altertable {
+  do_execsql_test update-15.1 {
+    CREATE TABLE t15(a INTEGER PRIMARY KEY, b);
+    INSERT INTO t15(a,b) VALUES(10,'abc'),(20,'def'),(30,'ghi');
+    ALTER TABLE t15 ADD COLUMN c;
+    CREATE INDEX t15c ON t15(c);
+    INSERT INTO t15(a,b)
+      VALUES(5,'zyx'),(15,'wvu'),(25,'tsr'),(35,'qpo');
+    UPDATE t15 SET c=printf('y%d',a) WHERE c IS NULL;
+    SELECT a,b,c,'|' FROM t15 ORDER BY a;
+  } {5 zyx y5 | 10 abc y10 | 15 wvu y15 | 20 def y20 | 25 tsr y25 | 30 ghi y30 | 35 qpo y35 |}
+}
+
+# Unreleased bug in UPDATE caused by the UPSERT changes.
+# Found by OSSFuzz as soon as the UPSERT changes landed on trunk.
+# Never released into the wild.  2018-04-19.
+#
+do_execsql_test update-16.1 {
+  CREATE TABLE t16(a INTEGER PRIMARY KEY ON CONFLICT REPLACE, b UNIQUE);
+  INSERT INTO t16(a,b) VALUES(1,2),(3,4),(5,6);
+  UPDATE t16 SET a=a;
+  SELECT * FROM t16 ORDER BY +a;
+} {1 2 3 4 5 6}
+
+# 2019-12-09 gramfuzz find
+# If a partial index that does not reference any column of its table (which is you
+# must admit is a very strange index, but one that is allowed) is used by an UPDATE
+# statement, void the use of OP_DeferredSeek on the main loop, as the seek will not
+# be resolved prior to the OP_Delete.
+#
+do_execsql_test update-17.10 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(x,y);
+  INSERT INTO t1(x) VALUES(1);
+  CREATE INDEX t1x1 ON t1(1) WHERE 3;
+  UPDATE t1 SET x=2, y=3 WHERE 3;
+  SELECT * FROM t1;
+} {2 3}
+
+# 2019-12-22 ticket 5ad2aa6921faa1ee
+# Make a hard-copy of values that need to be run through OP_RealAffinity
+# rather than a soft-copy.  This is not strictly necessary, but it avoids
+# a memory-accounting assert().
+#
+reset_db
+do_execsql_test update-18.10 {
+  PRAGMA encoding = 'UTF16';
+  CREATE TABLE t0(c0 REAL, c1);
+  INSERT INTO t0(c0,c1) VALUES('xyz',11),('uvw',22);
+  CREATE INDEX i0 ON t0(c1) WHERE c0 GLOB 3;
+  CREATE INDEX i1 ON t0(c0,c1) WHERE typeof(c0)='text' AND typeof(c1)='integer';
+  UPDATE t0 SET c1=345;
+  SELECT * FROM t0;
+} {xyz 345 uvw 345}
+
+# 2019-12-22 ticket c62c5e58524b204d
+# This is really the same underlying problem as 5ad2aa6921faa1ee
+#
+reset_db
+do_execsql_test update-18.20 {
+  PRAGMA encoding = 'utf16';
+  CREATE TABLE t0(c0 TEXT);
+  CREATE INDEX i0 ON t0(0 LIKE COALESCE(c0, 0));
+  INSERT INTO t0(c0) VALUES (0), (0);
+  SELECT * FROM t0;
+} {0 0}
+
+# 2019-12-28 assertion fault reported by Yongheng
+# Similar to ticket ec8abb025e78f40c
+# An UPDATE was reaching the OP_Delete after running OP_DeferredSeek
+# without ever hitting an OP_Column. The enhanced solution is to
+# fix OP_Delete so that it can do the seek itself.
+#
+reset_db
+do_execsql_test update-19.10 {
+  CREATE TABLE t1(
+   a TEXT,
+   b INTEGER PRIMARY KEY UNIQUE
+  ); 
+  INSERT INTO t1 VALUES(1,2);
+  UPDATE t1 SET a = quote(b) WHERE b>=2;
+  SELECT * FROM t1;
+} {2 2}
+
+# 2019-12-29 ticket https://www.sqlite.org/src/info/314cc133e5ada126
+# REPLACE conflict resolution during an UPDATE causes a DELETE trigger 
+# to fire.  If that DELETE trigger subsequently modifies the row
+# being updated, bad things can happen.  Prevent this by prohibiting
+# triggers from making changes to the table being updated while doing
+# REPLACE conflict resolution on the UPDATE.
+#
+# See also tickets:
+#   https://www.sqlite.org/src/info/c1e19e12046d23fe 2019-10-25
+#   https://www.sqlite.org/src/info/a8a4847a2d96f5de 2019-10-16 
+#
+reset_db
+do_execsql_test update-20.10 {
+  PRAGMA recursive_triggers = true;
+  CREATE TABLE t1(a UNIQUE ON CONFLICT REPLACE, b);
+  INSERT INTO t1(a,b) VALUES(4,12),(9,13);
+  CREATE INDEX i0 ON t1(b);
+  CREATE TRIGGER tr0 DELETE ON t1 BEGIN
+    UPDATE t1 SET b = a;
+  END;
+  PRAGMA integrity_check;
+} {ok}
+do_catchsql_test update-20.20 {
+  UPDATE t1 SET a=0;
+} {1 {constraint failed}}
+do_execsql_test update-20.30 {
+  PRAGMA integrity_check;
+} {ok}
+
+# 2023-03-16 https://sqlite.org/forum/forumpost/0007d1fdb1
+# A subquery in the WHERE clause of an UPDATE and behind a
+# short-circuit evaluation caused problems because multi-row
+# single-pass was selected.
+#
+# Similar problem for DELETE tested by delete-12.0.
+# https://sqlite.org/src/info/73f0036f045bf371
+#
+reset_db
+do_execsql_test update-21.1 {
+  CREATE TABLE t1 (vkey INTEGER, c5 INTEGER);
+  INSERT INTO t1 VALUES(3,NULL),(6,-54);
+}
+db null NULL
+do_execsql_test update-21.2 {
+  BEGIN;
+  UPDATE t1 SET vkey = 100 WHERE c5 is null;
+  SELECT * FROM t1 ORDER BY vkey, c5;
+  ROLLBACK;
+} {6 -54 100 NULL}
+do_execsql_test update-21.3 {
+  BEGIN;
+  UPDATE t1 SET vkey = 100 WHERE NOT (-10*(select min(vkey) from t1) >= c5);
+  SELECT * FROM t1 ORDER BY vkey, c5;
+  ROLLBACK;
+} {3 NULL 6 -54}
+do_execsql_test update-21.4 {
+  BEGIN;
+  UPDATE t1 SET vkey = 100 WHERE c5 is null OR NOT (-10*(select min(vkey) from t1) >= c5);
+  SELECT * FROM t1 ORDER BY vkey, c5;
+  ROLLBACK;
+} {6 -54 100 NULL}
+# Follow-up on 2023-07-31 (forum post https://sqlite.org/forum/forumpost/8ab195fd44e75ed0):
+# Only disable one-pass if the subquery is in the WHERE clause.  The SET expressions
+# do not count.
+do_execsql_test update-21.11 {
+  DROP TABLE t1;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b INT);
+  CREATE TABLE t2(d INT);
+}
+do_eqp_test update-21.12 {
+  WITH t3(x,y) AS (SELECT d, row_number()OVER() FROM t2)
+    UPDATE t1 SET b=(SELECT y FROM t3 WHERE t1.a=t3.x);
+} {
+  QUERY PLAN
+  |--SCAN t1
+  `--CORRELATED SCALAR SUBQUERY xxxxxx
+     |--CO-ROUTINE t3
+     |  |--CO-ROUTINE (subquery-xxxxxx)
+     |  |  `--SCAN t2
+     |  `--SCAN (subquery-xxxxxx)
+     |--BLOOM FILTER ON t3 (x=?)
+     `--SEARCH t3 USING AUTOMATIC COVERING INDEX (x=?)
+}
+
+finish_test
diff --git a/test/update2.test b/test/update2.test
new file mode 100644
index 0000000000000000000000000000000000000000..41a7224d7ac06d39d88ad37e8def125923916f9b
--- /dev/null
+++ b/test/update2.test
@@ -0,0 +1,235 @@
+# 2017 January 9
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix update2
+
+db func repeat [list string repeat]
+
+#-------------------------------------------------------------------------
+# 1.1.* A one-pass UPDATE that does balance() operations on the IPK index
+#       that it is scanning.
+#
+# 1.2.* Same again, but with a WITHOUT ROWID table.
+#
+set nrow [expr 10]
+do_execsql_test 1.1.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+  CREATE TABLE t2(a INTEGER PRIMARY KEY, b);
+  WITH s(i) AS ( SELECT 0 UNION ALL SELECT i+1 FROM s WHERE i<$nrow )
+  INSERT INTO t1(b) SELECT char((i % 26) + 65) FROM s;
+  INSERT INTO t2 SELECT * FROM t1;
+}
+
+do_execsql_test 1.1.1 {
+  UPDATE t1 SET b = repeat(b, 100)
+}
+
+do_execsql_test 1.1.2 {
+  SELECT * FROM t1;
+} [db eval { SELECT a, repeat(b, 100) FROM t2 }]
+
+do_execsql_test 1.2.0 {
+  DROP TABLE t1;
+  CREATE TABLE t1(a INT PRIMARY KEY, b) WITHOUT ROWID;
+  WITH s(i) AS ( SELECT 0 UNION ALL SELECT i+1 FROM s WHERE i<$nrow )
+  INSERT INTO t1(a, b) SELECT i+1, char((i % 26) + 65) FROM s;
+}
+
+#explain_i { UPDATE t1 SET b = repeat(b, 100) }
+do_execsql_test 1.2.1 {
+  UPDATE t1 SET b = repeat(b, 100)
+}
+
+do_execsql_test 1.2.2 {
+  SELECT * FROM t1;
+} [db eval { SELECT a, repeat(b, 100) FROM t2 }]
+
+
+#-------------------------------------------------------------------------
+# A one-pass UPDATE that does balance() operations on the IPK index
+# that it is scanning.
+#
+do_execsql_test 2.1 {
+  CREATE TABLE t3(a PRIMARY KEY, b, c);
+  CREATE INDEX t3i ON t3(b);
+} {}
+do_execsql_test 2.2 { UPDATE t3 SET c=1 WHERE b=?      } {}
+do_execsql_test 2.3 { UPDATE t3 SET c=1 WHERE rowid=?  } {}
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test 3.0 {
+  CREATE TABLE t4(a PRIMARY KEY, b, c) WITHOUT ROWID;
+  CREATE INDEX t4c ON t4(c);
+  INSERT INTO t4 VALUES(1, 2, 3);
+  INSERT INTO t4 VALUES(2, 3, 4);
+}
+
+do_execsql_test 3.1 {
+  UPDATE t4 SET c=c+2 WHERE c>2;
+  SELECT a, c FROM t4 ORDER BY a;
+} {1 5 2 6}
+
+#-------------------------------------------------------------------------
+#
+foreach {tn sql} {
+  1 { 
+    CREATE TABLE b1(a INTEGER PRIMARY KEY, b, c);
+    CREATE TABLE c1(a INTEGER PRIMARY KEY, b, c, d)
+  }
+  2 { 
+    CREATE TABLE b1(a INT PRIMARY KEY, b, c) WITHOUT ROWID;
+    CREATE TABLE c1(a INT PRIMARY KEY, b, c, d) WITHOUT ROWID;
+  }
+} {
+  execsql { DROP TABLE IF EXISTS b1; DROP TABLE IF EXISTS c1; }
+  execsql $sql
+
+  do_execsql_test 4.$tn.0 {
+    CREATE UNIQUE INDEX b1c ON b1(c);
+    INSERT INTO b1 VALUES(1, 'a', 1);
+    INSERT INTO b1 VALUES(2, 'b', 15);
+    INSERT INTO b1 VALUES(3, 'c', 3);
+    INSERT INTO b1 VALUES(4, 'd', 4);
+    INSERT INTO b1 VALUES(5, 'e', 5);
+    INSERT INTO b1 VALUES(6, 'f', 6);
+    INSERT INTO b1 VALUES(7, 'g', 7);
+  }
+
+  do_execsql_test 4.$tn.1 {
+    UPDATE OR REPLACE b1 SET c=c+10 WHERE a BETWEEN 4 AND 7;
+    SELECT * FROM b1 ORDER BY a;
+  } {
+    1 a 1
+    3 c 3
+    4 d 14
+    5 e 15
+    6 f 16
+    7 g 17
+  }
+
+  do_execsql_test 4.$tn.2 {
+    CREATE INDEX c1d ON c1(d, b);
+    CREATE UNIQUE INDEX c1c ON c1(c, b);
+
+    INSERT INTO c1 VALUES(1, 'a', 1,  1);
+    INSERT INTO c1 VALUES(2, 'a', 15, 2);
+    INSERT INTO c1 VALUES(3, 'a', 3,  3);
+    INSERT INTO c1 VALUES(4, 'a', 4,  4);
+    INSERT INTO c1 VALUES(5, 'a', 5,  5);
+    INSERT INTO c1 VALUES(6, 'a', 6,  6);
+    INSERT INTO c1 VALUES(7, 'a', 7,  7);
+  }
+
+  do_execsql_test 4.$tn.3 {
+    UPDATE OR REPLACE c1 SET c=c+10 WHERE d BETWEEN 4 AND 7;
+    SELECT * FROM c1 ORDER BY a;
+  } {
+    1 a 1 1
+    3 a 3 3
+    4 a 14 4
+    5 a 15 5
+    6 a 16 6
+    7 a 17 7
+  }
+
+  do_execsql_test 4.$tn.4 { PRAGMA integrity_check } ok
+
+  do_execsql_test 4.$tn.5 {
+    DROP INDEX c1d;
+    DROP INDEX c1c;
+    DELETE FROM c1;
+
+    INSERT INTO c1 VALUES(1, 'a', 1,  1);
+    INSERT INTO c1 VALUES(2, 'a', 15, 2);
+    INSERT INTO c1 VALUES(3, 'a', 3,  3);
+    INSERT INTO c1 VALUES(4, 'a', 4,  4);
+    INSERT INTO c1 VALUES(5, 'a', 5,  5);
+    INSERT INTO c1 VALUES(6, 'a', 6,  6);
+    INSERT INTO c1 VALUES(7, 'a', 7,  7);
+
+    CREATE INDEX c1d ON c1(d);
+    CREATE UNIQUE INDEX c1c ON c1(c);
+  }
+
+  do_execsql_test 4.$tn.6 {
+    UPDATE OR REPLACE c1 SET c=c+10 WHERE d BETWEEN 4 AND 7;
+    SELECT * FROM c1 ORDER BY a;
+  } {
+    1 a 1 1
+    3 a 3 3
+    4 a 14 4
+    5 a 15 5
+    6 a 16 6
+    7 a 17 7
+  }
+}
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test 5.0 {
+  CREATE TABLE x1(a INTEGER PRIMARY KEY, b, c);
+  CREATE INDEX x1c ON x1(b, c);
+  INSERT INTO x1 VALUES(1, 'a', 1);
+  INSERT INTO x1 VALUES(2, 'a', 2);
+  INSERT INTO x1 VALUES(3, 'a', 3);
+}
+
+do_execsql_test 5.1.1 {
+  UPDATE x1 SET c=c+1 WHERE b='a';
+}
+
+do_execsql_test 5.1.2 {
+  SELECT * FROM x1;
+} {1 a 2 2 a 3 3 a 4}
+
+do_test 5.2 {
+  catch { array unset A }
+  db eval { EXPLAIN UPDATE x1 SET c=c+1 WHERE b='a' } { incr A($opcode) }
+  set A(NotExists)
+} {1}
+
+#-------------------------------------------------------------------------
+do_execsql_test 6.0 {
+  CREATE TABLE d1(a,b);
+  CREATE INDEX d1b ON d1(a);
+  CREATE INDEX d1c ON d1(b);
+  INSERT INTO d1 VALUES(1,2);
+}
+
+do_execsql_test 6.1 {
+  UPDATE d1 SET a = a+2 WHERE a>0 OR b>0;
+}
+
+do_execsql_test 6.2 {
+  SELECT * FROM d1;
+} {3 2}
+
+# 2019-01-22 Bug in UPDATE OR REPLACE discovered by the 
+# Matt Denton's LPM fuzzer
+#
+do_execsql_test 7.100 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(x,y);
+  CREATE UNIQUE INDEX t1x1 ON t1(x) WHERE x IS NOT NULL;
+  INSERT INTO t1(x) VALUES(NULL),(NULL);
+  CREATE INDEX t1x2 ON t1(y);
+  SELECT quote(x), quote(y), '|' FROM t1;
+} {NULL NULL | NULL NULL |}
+do_execsql_test 7.110 {
+  UPDATE OR REPLACE t1 SET x=1;
+  SELECT quote(x), quote(y), '|' FROM t1;
+} {1 NULL |}
+
+finish_test
diff --git a/test/upfrom1.tcl b/test/upfrom1.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..22fc68a31c309a71f7ceacbcc8ec4534cbc1f2c2
--- /dev/null
+++ b/test/upfrom1.tcl
@@ -0,0 +1,115 @@
+# 2020 April 22
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname $argv0] pg_common.tcl]
+
+#=========================================================================
+
+start_test upfrom1 "2020 April 22"
+
+foreach {tn wo} {
+  1 "WITHOUT ROWID"
+  2 ""
+} {
+eval [string map [list %TN% $tn %WITHOUT_ROWID% $wo] {
+execsql_test 1.%TN%.0 {
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t2(a INTEGER PRIMARY KEY, b INTEGER, c INTEGER) %WITHOUT_ROWID%;
+  INSERT INTO t2 VALUES(1, 2, 3);
+  INSERT INTO t2 VALUES(4, 5, 6);
+  INSERT INTO t2 VALUES(7, 8, 9);
+
+  DROP TABLE IF EXISTS chng;
+  CREATE TABLE chng(a INTEGER, b INTEGER, c INTEGER);
+  INSERT INTO chng VALUES(1, 100, 1000);
+  INSERT INTO chng VALUES(7, 700, 7000);
+}
+
+execsql_test 1.%TN%.1 {
+  SELECT * FROM t2;
+}
+
+execsql_test 1.%TN%.2 {
+  UPDATE t2 SET b = chng.b, c = chng.c FROM chng WHERE chng.a = t2.a;
+  SELECT * FROM t2 ORDER BY a;
+}
+
+execsql_test 1.%TN%.3 {
+  DELETE FROM t2;
+  INSERT INTO t2 VALUES(1, 2, 3);
+  INSERT INTO t2 VALUES(4, 5, 6);
+  INSERT INTO t2 VALUES(7, 8, 9);
+}
+
+execsql_test 1.%TN%.4 {
+  UPDATE t2 SET (b, c) = (SELECT b, c FROM chng WHERE a=t2.a) 
+    WHERE a IN (SELECT a FROM chng);
+  SELECT * FROM t2 ORDER BY a;
+}
+
+execsql_test 1.%TN%.5 {
+  DROP TABLE IF EXISTS t3;
+  CREATE TABLE t3(a INTEGER PRIMARY KEY, b INTEGER, c TEXT) %WITHOUT_ROWID%;
+  INSERT INTO t3 VALUES(1, 1, 'one');
+  INSERT INTO t3 VALUES(2, 2, 'two');
+  INSERT INTO t3 VALUES(3, 3, 'three');
+
+  DROP TABLE IF EXISTS t4;
+  CREATE TABLE t4(x TEXT);
+  INSERT INTO t4 VALUES('five');
+
+  SELECT * FROM t3 ORDER BY a;
+}
+
+execsql_test 1.%TN%.6 {
+  UPDATE t3 SET c=x FROM t4;
+  SELECT * FROM t3 ORDER BY a;
+}
+}]}
+
+execsql_test 2.1 {
+  DROP TABLE IF EXISTS t5;
+  DROP TABLE IF EXISTS m1;
+  DROP TABLE IF EXISTS m2;
+  CREATE TABLE t5(a INTEGER PRIMARY KEY, b TEXT, c TEXT);
+  CREATE TABLE m1(x INTEGER PRIMARY KEY, y TEXT);
+  CREATE TABLE m2(u INTEGER PRIMARY KEY, v TEXT);
+
+  INSERT INTO t5 VALUES(1, 'one', 'ONE');
+  INSERT INTO t5 VALUES(2, 'two', 'TWO');
+  INSERT INTO t5 VALUES(3, 'three', 'THREE');
+  INSERT INTO t5 VALUES(4, 'four', 'FOUR');
+
+  INSERT INTO m1 VALUES(1, 'i');
+  INSERT INTO m1 VALUES(2, 'ii');
+  INSERT INTO m1 VALUES(3, 'iii');
+
+  INSERT INTO m2 VALUES(1, 'I');
+  INSERT INTO m2 VALUES(3, 'II');
+  INSERT INTO m2 VALUES(4, 'III');
+}
+
+execsql_test 2.2 {
+  UPDATE t5 SET b=y, c=v FROM m1 LEFT JOIN m2 ON (x=u) WHERE x=a;
+  SELECT * FROM t5 ORDER BY a;
+}
+
+errorsql_test 2.3.1 {
+  UPDATE t5 SET b=1 FROM t5;
+}
+errorsql_test 2.3.2 {
+  UPDATE t5 AS apples SET b=1 FROM t5 AS apples;
+}
+
+
+finish_test
+
diff --git a/test/upfrom1.test b/test/upfrom1.test
new file mode 100644
index 0000000000000000000000000000000000000000..204f3512e5d1c5f0d92c2f89dc1399b7f15d0781
--- /dev/null
+++ b/test/upfrom1.test
@@ -0,0 +1,210 @@
+# 2020 April 22
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+
+####################################################
+# DO NOT EDIT! THIS FILE IS AUTOMATICALLY GENERATED!
+####################################################
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix upfrom1
+
+do_execsql_test 1.1.0 {
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t2(a INTEGER PRIMARY KEY, b INTEGER, c INTEGER) WITHOUT ROWID;
+  INSERT INTO t2 VALUES(1, 2, 3);
+  INSERT INTO t2 VALUES(4, 5, 6);
+  INSERT INTO t2 VALUES(7, 8, 9);
+
+  DROP TABLE IF EXISTS chng;
+  CREATE TABLE chng(a INTEGER, b INTEGER, c INTEGER);
+  INSERT INTO chng VALUES(1, 100, 1000);
+  INSERT INTO chng VALUES(7, 700, 7000);
+} {}
+
+do_execsql_test 1.1.1 {
+  SELECT * FROM t2;
+} {1 2 3   4 5 6   7 8 9}
+
+do_execsql_test 1.1.2 {
+  UPDATE t2 SET b = chng.b, c = chng.c FROM chng WHERE chng.a = t2.a;
+  SELECT * FROM t2 ORDER BY a;
+} {1 100 1000   4 5 6   7 700 7000}
+
+do_execsql_test 1.1.3 {
+  DELETE FROM t2;
+  INSERT INTO t2 VALUES(1, 2, 3);
+  INSERT INTO t2 VALUES(4, 5, 6);
+  INSERT INTO t2 VALUES(7, 8, 9);
+} {}
+
+do_execsql_test 1.1.4 {
+  UPDATE t2 SET (b, c) = (SELECT b, c FROM chng WHERE a=t2.a) 
+    WHERE a IN (SELECT a FROM chng);
+  SELECT * FROM t2 ORDER BY a;
+} {1 100 1000   4 5 6   7 700 7000}
+
+do_execsql_test 1.1.5 {
+  DROP TABLE IF EXISTS t3;
+  CREATE TABLE t3(a INTEGER PRIMARY KEY, b INTEGER, c TEXT) WITHOUT ROWID;
+  INSERT INTO t3 VALUES(1, 1, 'one');
+  INSERT INTO t3 VALUES(2, 2, 'two');
+  INSERT INTO t3 VALUES(3, 3, 'three');
+
+  DROP TABLE IF EXISTS t4;
+  CREATE TABLE t4(x TEXT);
+  INSERT INTO t4 VALUES('five');
+
+  SELECT * FROM t3 ORDER BY a;
+} {1 1 one   2 2 two   3 3 three}
+
+do_execsql_test 1.1.6 {
+  UPDATE t3 SET c=x FROM t4;
+  SELECT * FROM t3 ORDER BY a;
+} {1 1 five   2 2 five   3 3 five}
+
+do_execsql_test 1.2.0 {
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t2(a INTEGER PRIMARY KEY, b INTEGER, c INTEGER) ;
+  INSERT INTO t2 VALUES(1, 2, 3);
+  INSERT INTO t2 VALUES(4, 5, 6);
+  INSERT INTO t2 VALUES(7, 8, 9);
+
+  DROP TABLE IF EXISTS chng;
+  CREATE TABLE chng(a INTEGER, b INTEGER, c INTEGER);
+  INSERT INTO chng VALUES(1, 100, 1000);
+  INSERT INTO chng VALUES(7, 700, 7000);
+} {}
+
+do_execsql_test 1.2.1 {
+  SELECT * FROM t2;
+} {1 2 3   4 5 6   7 8 9}
+
+do_execsql_test 1.2.2 {
+  UPDATE t2 SET b = chng.b, c = chng.c FROM chng WHERE chng.a = t2.a;
+  SELECT * FROM t2 ORDER BY a;
+} {1 100 1000   4 5 6   7 700 7000}
+
+do_execsql_test 1.2.3 {
+  DELETE FROM t2;
+  INSERT INTO t2 VALUES(1, 2, 3);
+  INSERT INTO t2 VALUES(4, 5, 6);
+  INSERT INTO t2 VALUES(7, 8, 9);
+} {}
+
+do_execsql_test 1.2.4 {
+  UPDATE t2 SET (b, c) = (SELECT b, c FROM chng WHERE a=t2.a) 
+    WHERE a IN (SELECT a FROM chng);
+  SELECT * FROM t2 ORDER BY a;
+} {1 100 1000   4 5 6   7 700 7000}
+
+do_execsql_test 1.2.5 {
+  DROP TABLE IF EXISTS t3;
+  CREATE TABLE t3(a INTEGER PRIMARY KEY, b INTEGER, c TEXT) ;
+  INSERT INTO t3 VALUES(1, 1, 'one');
+  INSERT INTO t3 VALUES(2, 2, 'two');
+  INSERT INTO t3 VALUES(3, 3, 'three');
+
+  DROP TABLE IF EXISTS t4;
+  CREATE TABLE t4(x TEXT);
+  INSERT INTO t4 VALUES('five');
+
+  SELECT * FROM t3 ORDER BY a;
+} {1 1 one   2 2 two   3 3 three}
+
+do_execsql_test 1.2.6 {
+  UPDATE t3 SET c=x FROM t4;
+  SELECT * FROM t3 ORDER BY a;
+} {1 1 five   2 2 five   3 3 five}
+
+do_execsql_test 2.1 {
+  DROP TABLE IF EXISTS t5;
+  DROP TABLE IF EXISTS m1;
+  DROP TABLE IF EXISTS m2;
+  CREATE TABLE t5(a INTEGER PRIMARY KEY, b TEXT, c TEXT);
+  CREATE TABLE m1(x INTEGER PRIMARY KEY, y TEXT);
+  CREATE TABLE m2(u INTEGER PRIMARY KEY, v TEXT);
+
+  INSERT INTO t5 VALUES(1, 'one', 'ONE');
+  INSERT INTO t5 VALUES(2, 'two', 'TWO');
+  INSERT INTO t5 VALUES(3, 'three', 'THREE');
+  INSERT INTO t5 VALUES(4, 'four', 'FOUR');
+
+  INSERT INTO m1 VALUES(1, 'i');
+  INSERT INTO m1 VALUES(2, 'ii');
+  INSERT INTO m1 VALUES(3, 'iii');
+
+  INSERT INTO m2 VALUES(1, 'I');
+  INSERT INTO m2 VALUES(3, 'II');
+  INSERT INTO m2 VALUES(4, 'III');
+} {}
+
+do_execsql_test 2.2 {
+  UPDATE t5 SET b=y, c=v FROM m1 LEFT JOIN m2 ON (x=u) WHERE x=a;
+  SELECT * FROM t5 ORDER BY a;
+} {1 i I   2 ii {}   3 iii II   4 four FOUR}
+
+# PG says ERROR:  table name "t5" specified more than once
+do_test 2.3.1 { catch { execsql {
+  UPDATE t5 SET b=1 FROM t5;
+} } } 1
+
+# PG says ERROR:  table name "apples" specified more than once
+do_test 2.3.2 { catch { execsql {
+  UPDATE t5 AS apples SET b=1 FROM t5 AS apples;
+} } } 1
+
+# Problem found by OSSFuzz on 2020-07-20
+# https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=24282
+#
+reset_db
+do_execsql_test 3.1 {
+  CREATE TABLE t0(a);
+  CREATE TABLE t1(b);
+  UPDATE t1 SET b=sum(a) FROM t0;
+  SELECT * FROM t0, t1;
+} {}
+
+# Problem described by forum post https://sqlite.org/forum/forumpost/a274248080
+#
+reset_db
+do_execsql_test 4.1 {
+  CREATE TABLE t1(x INT);  INSERT INTO t1 VALUES(1);
+  CREATE TABLE t2(y INT);  INSERT INTO t2 VALUES(2);
+  WITH t1 AS (SELECT y+100 AS x FROM t2) 
+    UPDATE t1 SET x=(SELECT x FROM t1);
+  SELECT x, y FROM t1, t2;
+} {102 2}
+do_execsql_test 4.2 {
+  WITH t1 AS (SELECT y+100 AS x FROM t2)
+    UPDATE t1 SET x=x+y FROM t2;
+  SELECT x, y FROM t1, t2;
+} {104 2}
+
+# 2021-05-20
+# Forum https://sqlite.org/forum/forumpost/339f487de5 by Yu Liang
+# A bad assert()
+#
+reset_db
+do_execsql_test 5.1 {
+  CREATE TABLE t1(a);
+  INSERT INTO t1(a) VALUES(5);
+  CREATE VIEW t2 AS SELECT a FROM t1 UNION ALL SELECT a FROM t1;
+  CREATE TABLE t3(b,c);
+  INSERT INTO t3(b,c) VALUES(1,2);
+  UPDATE t3 SET (c,b) = (SELECT 3,4) FROM t1, t2;
+  SELECT * FROM t3;
+} {4 3}
+
+
+finish_test
diff --git a/test/upfrom2.test b/test/upfrom2.test
new file mode 100644
index 0000000000000000000000000000000000000000..600fa05e4bb3ae16d357780bf121e47c2333e2e2
--- /dev/null
+++ b/test/upfrom2.test
@@ -0,0 +1,405 @@
+# 2020 April 29
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix upfrom2
+
+# Test cases:
+#
+#   1.*: Test that triggers are fired correctly for UPDATE FROM statements,
+#        and only once for each row. Except for INSTEAD OF triggers on 
+#        views - these are fired once for each row returned by the join, 
+#        including duplicates.
+#
+#   2.*: Test adding ORDER BY and LIMIT clauses with UPDATE FROM statements.
+#
+#   5.*: Test that specifying the target table name or alias in the FROM
+#        clause of an UPDATE statement is an error.
+#
+
+foreach {tn wo} {
+  1 ""
+  2 "WITHOUT ROWID"
+} {
+  reset_db
+
+  eval [string map [list %WO% $wo %TN% $tn] {
+  do_execsql_test 1.%TN%.0 {
+    CREATE TABLE log(t TEXT);
+    CREATE TABLE t1(x PRIMARY KEY, y, z UNIQUE) %WO%;
+    CREATE INDEX t1y ON t1(y);
+
+    INSERT INTO t1 VALUES(1, 'i',   'one');
+    INSERT INTO t1 VALUES(2, 'ii',  'two');
+    INSERT INTO t1 VALUES(3, 'iii', 'three');
+    INSERT INTO t1 VALUES(4, 'iv',  'four');
+
+    CREATE TRIGGER tr1 BEFORE UPDATE ON t1 BEGIN
+      INSERT INTO log VALUES(old.z || '->' || new.z);
+    END;
+    CREATE TRIGGER tr2 AFTER UPDATE ON t1 BEGIN
+      INSERT INTO log VALUES(old.y || '->' || new.y);
+    END;
+  }
+
+  do_execsql_test 1.%TN%.1 {
+    WITH data(k, v) AS (
+      VALUES(3, 'thirty'), (1, 'ten')
+    )
+    UPDATE t1 SET z=v FROM data WHERE x=k;
+
+    SELECT * FROM t1;
+    SELECT * FROM log;
+  } {
+    1 i ten   2 ii two   3 iii thirty   4 iv four
+    one->ten        i->i
+    three->thirty   iii->iii
+  }
+
+  do_execsql_test 1.%TN%.2 {
+    CREATE TABLE t2(a, b);
+    CREATE TABLE t3(k, v);
+  
+    INSERT INTO t3 VALUES(5,   'v');
+    INSERT INTO t3 VALUES(12, 'xii');
+  
+    INSERT INTO t2 VALUES(2, 12);
+    INSERT INTO t2 VALUES(3, 5);
+  
+    DELETE FROM log;
+    UPDATE t1 SET y=v FROM t2, t3 WHERE t1.x=t2.a AND t3.k=t2.b;
+  
+    SELECT * FROM t1;
+    SELECT * FROM log;
+  } {
+    1 i ten   2 xii two   3 v thirty   4 iv four
+    two->two         ii->xii
+    thirty->thirty   iii->v
+  }
+
+  do_execsql_test 1.%TN%.3 {
+    DELETE FROM log;
+    WITH data(k, v) AS (
+      VALUES(1, 'seven'), (1, 'eight'), (2, 'eleven'), (2, 'twelve')
+    )
+    UPDATE t1 SET z=v FROM data WHERE x=k;
+  
+    SELECT * FROM t1;
+    SELECT * FROM log;
+  } {
+    1 i eight   2 xii twelve   3 v thirty   4 iv four
+    ten->eight        i->i
+    two->twelve       xii->xii
+  }
+
+  do_test 1.%TN%.4 { db changes } {2}
+
+  do_execsql_test 1.%TN%.5 { 
+    CREATE VIEW v1 AS SELECT * FROM t1;
+    CREATE TRIGGER v1tr INSTEAD OF UPDATE ON v1 BEGIN
+      UPDATE t1 SET y=new.y, z=new.z WHERE x=new.x;
+    END;
+
+    DELETE FROM log;
+    WITH data(k, v) AS (
+      VALUES(3, 'thirteen'), (3, 'fourteen'), (4, 'fifteen'), (4, 'sixteen')
+    )
+    UPDATE v1 SET z=v FROM data WHERE x=k;
+  }
+
+  do_execsql_test 1.%TN%.6 {
+    SELECT * FROM v1;
+    SELECT * FROM log;
+  } {
+    1 i eight   2 xii twelve   3 v fourteen   4 iv sixteen
+    thirty->thirteen  v->v
+    thirteen->fourteen  v->v
+    four->fifteen  iv->iv
+    fifteen->sixteen  iv->iv
+  }
+
+  #--------------------------------------------------------------
+
+  do_execsql_test 1.%TN%.7 {
+    CREATE TABLE o1(w, x, y, z UNIQUE, PRIMARY KEY(w, x)) %WO%;
+    CREATE INDEX o1y ON t1(y);
+
+    INSERT INTO o1 VALUES(0, 0, 'i', 'one');
+    INSERT INTO o1 VALUES(0, 1, 'ii', 'two');
+    INSERT INTO o1 VALUES(1, 0, 'iii', 'three');
+    INSERT INTO o1 VALUES(1, 1, 'iv', 'four');
+
+    CREATE TRIGGER tro1 BEFORE UPDATE ON o1 BEGIN
+      INSERT INTO log VALUES(old.z || '->' || new.z);
+    END;
+    CREATE TRIGGER tro2 AFTER UPDATE ON o1 BEGIN
+      INSERT INTO log VALUES(old.y || '->' || new.y);
+    END;
+  }
+
+  do_execsql_test 1.%TN%.8 {
+    DELETE FROM log;
+    WITH data(k, v) AS (
+      VALUES(3, 'thirty'), (1, 'ten')
+    )
+    UPDATE o1 SET z=v FROM data WHERE (1+x+w*2)=k;
+
+    SELECT * FROM o1;
+    SELECT * FROM log;
+  } {
+    0 0 i ten   0 1 ii two   1 0 iii thirty   1 1 iv four
+    one->ten        i->i
+    three->thirty   iii->iii
+  }
+
+  do_execsql_test 1.%TN%.9 {
+    DELETE FROM log;
+    UPDATE o1 SET y=v FROM t2, t3 WHERE (1+o1.w*2+o1.x)=t2.a AND t3.k=t2.b;
+  
+    SELECT * FROM o1;
+    SELECT * FROM log;
+  } {
+    0 0 i ten   0 1 xii two   1 0 v thirty   1 1 iv four
+    two->two         ii->xii
+    thirty->thirty   iii->v
+  }
+
+  do_execsql_test 1.%TN%.10 {
+    DELETE FROM log;
+    WITH data(k, v) AS (
+      VALUES(1, 'seven'), (1, 'eight'), (2, 'eleven'), (2, 'twelve')
+    )
+    UPDATE o1 SET z=v FROM data WHERE (1+w*2+x)=k;
+  
+    SELECT * FROM o1;
+    SELECT * FROM log;
+  } {
+    0 0 i eight   0 1 xii twelve   1 0 v thirty   1 1 iv four
+    ten->eight        i->i
+    two->twelve       xii->xii
+  }
+
+  do_test 1.%TN%.11 { db changes } {2}
+
+  do_execsql_test 1.%TN%.12 { 
+    CREATE VIEW w1 AS SELECT * FROM o1;
+    CREATE TRIGGER w1tr INSTEAD OF UPDATE ON w1 BEGIN
+      UPDATE o1 SET y=new.y, z=new.z WHERE w=new.w AND x=new.x;
+    END;
+
+    DELETE FROM log;
+    WITH data(k, v) AS (
+      VALUES(3, 'thirteen'), (3, 'fourteen'), (4, 'fifteen'), (4, 'sixteen')
+    )
+    UPDATE w1 SET z=v FROM data WHERE (1+w*2+x)=k;
+  }
+
+  do_execsql_test 1.%TN%.13 {
+    SELECT * FROM w1;
+    SELECT * FROM log;
+  } {
+    0 0 i eight   0 1 xii twelve   1 0 v fourteen   1 1 iv sixteen
+    thirty->thirteen  v->v
+    thirteen->fourteen  v->v
+    four->fifteen  iv->iv
+    fifteen->sixteen  iv->iv
+  }
+
+}]
+}
+
+ifcapable update_delete_limit {
+foreach {tn wo} {
+  1 ""
+  2 "WITHOUT ROWID"
+} {
+  reset_db
+
+eval [string map [list %WO% $wo %TN% $tn] {
+  do_execsql_test 2.%TN%.1 {
+    CREATE TABLE x1(a INTEGER PRIMARY KEY, b) %WO%;
+    INSERT INTO x1 VALUES
+        (1, 'one'), (2, 'two'), (3, 'three'), (4, 'four'),
+        (5, 'five'), (6, 'six'), (7, 'seven'), (8, 'eight');
+  }
+
+  do_execsql_test 2.%TN%.2 {
+    CREATE TABLE data1(x, y);
+    INSERT INTO data1 VALUES
+    (1, 'eleven'), (1, 'twenty-one'), (2, 'twelve'), (2, 'twenty-two'),
+    (3, 'thirteen'), (3, 'twenty-three'), (4, 'fourteen'), (4, 'twenty-four');
+  }
+
+  do_execsql_test 2.%TN%.3 {
+    UPDATE x1 SET b=y FROM data1 WHERE a=x ORDER BY a LIMIT 3;
+    SELECT * FROM x1;
+  } {
+    1 eleven 2 twelve 3 thirteen 4 four 5 five 6 six 7 seven 8 eight
+  }
+
+  do_execsql_test 2.%TN%.4 {
+    UPDATE x1 SET b=b||y FROM data1 WHERE a=x ORDER BY b LIMIT 3;
+    SELECT * FROM x1;
+  } {
+    1 eleveneleven 2 twelve 3 thirteenthirteen 4 fourfourteen 
+    5 five 6 six 7 seven 8 eight
+  }
+
+  do_catchsql_test 2.%TN%.5 {
+    UPDATE x1 SET b=b||b ORDER BY b;
+  } {1 {ORDER BY without LIMIT on UPDATE}}
+  do_catchsql_test 2.%TN%.6 {
+    UPDATE x1 SET b=b||y FROM data1 WHERE a=x ORDER BY b;
+  } {1 {ORDER BY without LIMIT on UPDATE}}
+
+  #-----------------------------------------------------------------------
+
+  do_execsql_test 2.%TN%.6 {
+    DROP TABLE x1;
+    CREATE TABLE x1(u, v, b, PRIMARY KEY(u, v)) %WO%;
+    INSERT INTO x1 VALUES
+        (0, 1, 'one'), (1, 0, 'two'), (1, 1, 'three'), (2, 0, 'four'),
+        (2, 1, 'five'), (3, 0, 'six'), (3, 1, 'seven'), (4, 0, 'eight');
+  }
+
+  do_execsql_test 2.%TN%.7 {
+    UPDATE x1 SET b=y FROM data1 WHERE (u*2+v)=x ORDER BY u, v LIMIT 3;
+    SELECT * FROM x1;
+  } {
+    0 1 eleven 1 0 twelve 1 1 thirteen 2 0 four 
+    2 1 five 3 0 six 3 1 seven 4 0 eight
+  }
+
+  do_execsql_test 2.%TN%.8 {
+    UPDATE x1 SET b=b||y FROM data1 WHERE (u*2+v)=x ORDER BY b LIMIT 3;
+    SELECT * FROM x1;
+  } {
+    0 1 eleveneleven 1 0 twelve 1 1 thirteenthirteen 2 0 fourfourteen 
+    2 1 five  3 0 six 3 1 seven 4 0 eight
+  }
+
+
+}]
+}}
+
+reset_db
+do_execsql_test 3.0 {
+  CREATE TABLE data(x, y, z);
+  CREATE VIEW t1 AS SELECT * FROM data;
+  CREATE TRIGGER t1_insert INSTEAD OF INSERT ON t1 BEGIN
+    INSERT INTO data VALUES(new.x, new.y, new.z);
+  END;
+  CREATE TRIGGER t1_update INSTEAD OF UPDATE ON t1 BEGIN
+    INSERT INTO log VALUES(old.z || '->' || new.z);
+  END;
+
+  CREATE TABLE log(t TEXT);
+
+  INSERT INTO t1 VALUES(1, 'i',   'one');
+  INSERT INTO t1 VALUES(2, 'ii',  'two');
+  INSERT INTO t1 VALUES(3, 'iii', 'three');
+  INSERT INTO t1 VALUES(4, 'iv',  'four');
+}
+
+do_execsql_test 3.1 {
+  WITH input(k, v) AS (
+      VALUES(3, 'thirty'), (1, 'ten')
+  )
+  UPDATE t1 SET z=v FROM input WHERE x=k;
+}
+
+foreach {tn sql} {
+  2 { 
+    CREATE TABLE x1(a INT PRIMARY KEY, b, c) WITHOUT ROWID;
+  }
+  1 { 
+    CREATE TABLE x1(a INTEGER PRIMARY KEY, b, c);
+  }
+  3 { 
+    CREATE TABLE x1(a INT PRIMARY KEY, b, c);
+  }
+} {
+
+  reset_db
+  execsql $sql
+
+  do_execsql_test 4.$tn.0 {
+    INSERT INTO x1 VALUES(1, 1, 1);
+    INSERT INTO x1 VALUES(2, 2, 2);
+    INSERT INTO x1 VALUES(3, 3, 3);
+    INSERT INTO x1 VALUES(4, 4, 4);
+    INSERT INTO x1 VALUES(5, 5, 5);
+    CREATE TABLE map(o, t);
+    INSERT INTO map VALUES(3, 30), (4, 40), (1, 10);
+  }
+
+  do_execsql_test 4.$tn.1 {
+    UPDATE x1 SET a=t FROM map WHERE a=o;
+    SELECT * FROM x1 ORDER BY a;
+  } {2 2 2   5 5 5   10 1 1  30 3 3  40 4 4}
+}
+
+reset_db
+do_execsql_test 5.0 {
+  CREATE TABLE x1(a, b, c);
+  CREATE TABLE x2(a, b, c);
+}
+
+foreach {tn update nm} {
+  1 "UPDATE x1 SET a=5 FROM x1" x1
+  2 "UPDATE x1 AS grapes SET a=5 FROM x1 AS grapes" grapes
+  3 "UPDATE x1 SET a=5 FROM x2, x1" x1
+  4 "UPDATE x1 AS grapes SET a=5 FROM x2, x1 AS grapes" grapes
+} {
+  do_catchsql_test 5.$tn $update \
+    "1 {target object/alias may not appear in FROM clause: $nm}"
+}
+
+#--------------------------------------------------------------------------
+reset_db
+do_execsql_test 6.0 {
+  CREATE TABLE t1(a); 
+}
+
+do_execsql_test 6.1 {
+  UPDATE t1 SET a = 1 FROM (
+      SELECT * FROM t1
+  )
+} {}
+do_execsql_test 6.2 {
+  UPDATE t1 SET a = 1 FROM (
+      SELECT * FROM t1 UNION ALL SELECT * FROM t1
+  )
+} {}
+
+# 2022-03-21
+# https://sqlite.org/forum/forumpost/929168fdd6
+#
+reset_db
+do_execsql_test 7.0 {
+  CREATE TABLE t1(a);
+  INSERT INTO t1(a) VALUES(11),(22),(33),(44),(55);
+  CREATE VIEW t2(b,c) AS SELECT a, COUNT(*) OVER () FROM t1;
+  CREATE TABLE t3(x,y);
+  CREATE TRIGGER t2r1 INSTEAD OF UPDATE ON t2 BEGIN
+    INSERT INTO t3(x,y) VALUES(new.b,new.c);
+  END;
+  SELECT * FROM t2;
+} {11 5 22 5 33 5 44 5 55 5}
+do_execsql_test 7.1 {
+  UPDATE t2 SET c=t1.a FROM t1 WHERE t2.b=t1.a;
+  SELECT * FROM t3;
+} {11 11 22 22 33 33 44 44 55 55}
+
+
+finish_test
diff --git a/test/upfrom3.test b/test/upfrom3.test
new file mode 100644
index 0000000000000000000000000000000000000000..9936716b51764120c5a7354a6c81b8bdcae3bff2
--- /dev/null
+++ b/test/upfrom3.test
@@ -0,0 +1,261 @@
+# 2020 July 14
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix upfrom3
+
+# Test plan:
+#
+#   1.*: Test UPDATE ... FROM statements that modify IPK fields. And that
+#        modify "INTEGER PRIMARY KEY" fields on WITHOUT ROWID tables.
+#
+#   2.*: Test UPDATE ... FROM statements that modify PK fields of WITHOUT
+#        ROWID tables.
+#
+#   3.*: Test that UPDATE ... FROM statements are not confused if there
+#        are multiple tables of the same name in attached databases.
+#
+#   4.*: Tests for UPDATE ... FROM statements and foreign keys.
+#
+
+foreach {tn wo} {
+  1 ""
+  2 "WITHOUT ROWID"
+} {
+  reset_db
+  eval [string map [list %WO% $wo %TN% $tn] {
+
+  do_execsql_test 1.%TN%.0 {
+    CREATE TABLE log(t TEXT);
+    CREATE TABLE t1(x INTEGER PRIMARY KEY, y, z UNIQUE) %WO%;
+    CREATE INDEX t1y ON t1(y);
+
+    INSERT INTO t1 VALUES(1, 'i',   'one');
+    INSERT INTO t1 VALUES(2, 'ii',  'two');
+    INSERT INTO t1 VALUES(3, 'iii', 'three');
+    INSERT INTO t1 VALUES(4, 'iv',  'four');
+  }
+
+  do_execsql_test 1.%TN%.1 {
+    CREATE TABLE x1(o, n);
+    INSERT INTO x1 VALUES(1, 11);
+    INSERT INTO x1 VALUES(2, 12);
+    INSERT INTO x1 VALUES(3, 13);
+    INSERT INTO x1 VALUES(4, 14);
+    UPDATE t1 SET x=n FROM x1 WHERE x=o;
+    SELECT x, y, z FROM t1 ORDER BY 1;
+  } {
+    11 i one
+    12 ii two
+    13 iii three
+    14 iv four
+  }
+
+  do_test 1.%TN%.2 { db changes } 4
+
+  do_execsql_test 1.%TN%.3 {
+    INSERT INTO x1 VALUES(11, 21);
+    INSERT INTO x1 VALUES(12, 22);
+    INSERT INTO x1 VALUES(13, 23);
+    INSERT INTO x1 VALUES(14, 24);
+
+    INSERT INTO x1 VALUES(21, 31);
+    INSERT INTO x1 VALUES(22, 32);
+    INSERT INTO x1 VALUES(23, 33);
+    INSERT INTO x1 VALUES(24, 34);
+    UPDATE t1 SET x=n FROM x1 WHERE x=o;
+    SELECT x, y, z FROM t1 ORDER BY 1;
+  } {
+    21 i one
+    22 ii two
+    23 iii three
+    24 iv four
+  }
+
+  do_execsql_test 1.%TN%.4 {
+    UPDATE t1 SET x=n FROM x1 WHERE x=o;
+    SELECT x, y, z FROM t1 ORDER BY 1;
+  } {
+    31 i one
+    32 ii two
+    33 iii three
+    34 iv four
+  }
+
+  do_execsql_test 1.%TN%.5 {
+    INSERT INTO x1 VALUES(31, 32);
+    INSERT INTO x1 VALUES(33, 34);
+    UPDATE OR REPLACE t1 SET x=n FROM x1 WHERE x=o;
+    SELECT x, y, z FROM t1 ORDER BY 1;
+  } {
+    32 i one
+    34 iii three
+  }
+
+  do_execsql_test 1.%TN%.6 {
+    INSERT INTO t1 VALUES(33, 'ii', 'two');
+    INSERT INTO t1 VALUES(35, 'iv', 'four');
+  }
+
+  do_execsql_test 1.%TN%.7 {
+    CREATE TABLE x2(o, n, zz);
+    INSERT INTO x2 VALUES(32, 41, 'four');
+    INSERT INTO x2 VALUES(33, 42, 'three');
+    UPDATE OR IGNORE t1 SET x=n, z=zz FROM x2 WHERE x=o;
+    SELECT x, y, z FROM t1 ORDER BY 1;
+  } {
+    32 i one 
+    33 ii two 
+    34 iii three 
+    35 iv four
+  }
+
+  do_execsql_test 1.%TN%.8 {
+    UPDATE OR REPLACE t1 SET x=n, z=zz FROM x2 WHERE x=o;
+    SELECT x, y, z FROM t1 ORDER BY 1;
+  } {
+    41 i four
+    42 ii three
+  }
+
+  }]
+}
+
+do_execsql_test 2.1.1 {
+  CREATE TABLE u1(a, b, c, PRIMARY KEY(b, c)) WITHOUT ROWID;
+  INSERT INTO u1 VALUES(0, 0, 0);
+  INSERT INTO u1 VALUES(1, 0, 1);
+  INSERT INTO u1 VALUES(2, 1, 0);
+  INSERT INTO u1 VALUES(3, 1, 1);
+}
+
+do_execsql_test 2.1.2 {
+  CREATE TABLE map(f, t);
+  INSERT INTO map VALUES(0, 10);
+  INSERT INTO map VALUES(1, 11);
+  UPDATE u1 SET c=t FROM map WHERE c=f;
+  SELECT * FROM u1 ORDER BY a;
+} {
+  0 0 10
+  1 0 11
+  2 1 10
+  3 1 11
+}
+
+do_execsql_test 2.1.3 {
+  UPDATE u1 SET b=t FROM map WHERE b=f;
+  SELECT * FROM u1 ORDER BY a;
+} {
+  0 10 10
+  1 10 11
+  2 11 10
+  3 11 11
+}
+
+do_execsql_test 2.1.4 {
+  CREATE TABLE map2(o1, o2, n1, n2);
+  INSERT INTO map2 VALUES
+    (10, 10, 50, 50), (10, 11, 50, 60), 
+    (11, 10, 60, 50), (11, 11, 60, 60);
+  UPDATE u1 SET b=n1, c=n2 FROM map2 WHERE b=o1 AND c=o2;
+  SELECT * FROM u1 ORDER BY a;
+} {
+  0 50 50
+  1 50 60
+  2 60 50
+  3 60 60
+}
+
+#-------------------------------------------------------------------------
+foreach {tn wo} {
+  1 ""
+  2 "WITHOUT ROWID"
+} {
+  reset_db
+  forcedelete test.db2
+  eval [string map [list %WO% $wo %TN% $tn] {
+    do_execsql_test 3.$tn.1 {
+      CREATE TABLE g1(a, b, c, PRIMARY KEY(a, b)) %WO%;
+      INSERT INTO g1 VALUES(1, 1, 1);
+
+      ATTACH 'test.db2' AS aux;
+      CREATE TABLE aux.g1(a, b, c, PRIMARY KEY(a, b)) %WO%;
+      INSERT INTO aux.g1 VALUES(10, 1, 10);
+      INSERT INTO aux.g1 VALUES(20, 2, 20);
+      INSERT INTO aux.g1 VALUES(30, 3, 30);
+    }
+
+    do_execsql_test 3.$tn.2 {
+      UPDATE aux.g1 SET c=101 FROM main.g1;
+    }
+    do_execsql_test 3.$tn.3 {
+      SELECT * FROM aux.g1;
+    } {10 1 101  20 2 101  30 3 101}
+
+    do_execsql_test 3.$tn.4 {
+      UPDATE g1 SET c=101 FROM g1 AS g2;
+    }
+    do_execsql_test 3.$tn.5 {
+      SELECT * FROM g1;
+    } {1 1 101}
+  }]
+}
+
+#-------------------------------------------------------------------------
+reset_db
+foreach {tn wo} {
+  1 ""
+  2 "WITHOUT ROWID"
+} {
+  reset_db
+  forcedelete test.db2
+  eval [string map [list %WO% $wo %TN% $tn] {
+
+    do_execsql_test 4.$tn.1 {
+      CREATE TABLE p1(a INTEGER PRIMARY KEY, b) %WO%;
+      CREATE TABLE c1(x PRIMARY KEY, y REFERENCES p1 ON UPDATE CASCADE) %WO%;
+      PRAGMA foreign_keys = 1;
+
+      INSERT INTO p1 VALUES(1, 'one');
+      INSERT INTO p1 VALUES(11, 'eleven');
+      INSERT INTO p1 VALUES(111, 'eleventyone');
+
+      INSERT INTO c1 VALUES('a', 1);
+      INSERT INTO c1 VALUES('b', 11);
+      INSERT INTO c1 VALUES('c', 111);
+    }
+
+    do_execsql_test 4.$tn.2 {
+      CREATE TABLE map(f, t);
+      INSERT INTO map VALUES('a', 111);
+      INSERT INTO map VALUES('c', 112);
+    }
+
+    do_catchsql_test 4.$tn.3 {
+      UPDATE c1 SET y=t FROM map WHERE x=f;
+    } {1 {FOREIGN KEY constraint failed}}
+
+    do_execsql_test 4.$tn.4 {
+      INSERT INTO map VALUES('eleven', 12);
+      INSERT INTO map VALUES('eleventyone', 112);
+      UPDATE p1 SET a=t FROM map WHERE b=f;
+    }
+
+    do_execsql_test 4.$tn.5 {
+      SELECT * FROM c1
+    } {a 1  b 12  c 112}
+
+  }]
+}
+
+finish_test
diff --git a/test/upfrom4.test b/test/upfrom4.test
new file mode 100644
index 0000000000000000000000000000000000000000..2228236280a11ecf60fa36b824529ac53bc3e102
--- /dev/null
+++ b/test/upfrom4.test
@@ -0,0 +1,156 @@
+# 2022-05-24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix upfrom4
+
+do_execsql_test 100 {
+  DROP TABLE IF EXISTS t5;
+  DROP TABLE IF EXISTS m1;
+  DROP TABLE IF EXISTS m2;
+  CREATE TABLE t5(a INTEGER PRIMARY KEY, b TEXT, c TEXT);
+  CREATE TABLE m1(x INTEGER PRIMARY KEY, y TEXT);
+  CREATE TABLE m2(u INTEGER PRIMARY KEY, v TEXT);
+
+  INSERT INTO t5 VALUES(1, 'one', 'ONE');
+  INSERT INTO t5 VALUES(2, 'two', 'TWO');
+  INSERT INTO t5 VALUES(3, 'three', 'THREE');
+  INSERT INTO t5 VALUES(4, 'four', 'FOUR');
+
+  INSERT INTO m1 VALUES(1, 'i');
+  INSERT INTO m1 VALUES(2, 'ii');
+  INSERT INTO m1 VALUES(3, 'iii');
+
+  INSERT INTO m2 VALUES(1, 'I');
+  INSERT INTO m2 VALUES(3, 'II');
+  INSERT INTO m2 VALUES(4, 'III');
+  SELECT * FROM t5;
+} {1 one ONE 2 two TWO 3 three THREE 4 four FOUR}
+
+do_execsql_test 110 {
+  BEGIN;
+  UPDATE t5 SET b=y, c=v FROM m1 LEFT JOIN m2 ON (x=u) WHERE x=a;
+  SELECT * FROM t5 ORDER BY a;
+  ROLLBACK;
+} {1 i I 2 ii {} 3 iii II 4 four FOUR}
+
+do_execsql_test 120 {
+  BEGIN;
+  UPDATE t5 SET b=y, c=v FROM m2 RIGHT JOIN m1 ON (x=u) WHERE x=a;
+  SELECT * FROM t5 ORDER BY a;
+  ROLLBACK;
+} {1 i I 2 ii {} 3 iii II 4 four FOUR}
+
+
+reset_db
+db null -
+do_execsql_test 200 {
+  CREATE TABLE t1(a INT PRIMARY KEY, b INT, c INT);
+  INSERT INTO t1(a) VALUES(1),(2),(8),(19);
+  CREATE TABLE c1(x INTEGER PRIMARY KEY, b INT);
+  INSERT INTO c1(x,b) VALUES(1,1),(8,8),(17,17),(NULL,NULL);
+  CREATE TABLE c2(x INT,c INT);
+  INSERT INTO c2(x,c) VALUES(2,2),(8,8),(NULL,NULL);
+  CREATE TABLE dual(dummy TEXT);
+  INSERT INTO dual VALUES('X');
+} {}
+do_execsql_test 210 {
+  BEGIN;
+  SELECT * FROM t1 ORDER BY a;
+  UPDATE t1 SET b=c1.b, c=c2.c
+    FROM dual, c1 NATURAL RIGHT JOIN c2
+   WHERE x=a;
+  SELECT * FROM t1 ORDER BY a;
+  ROLLBACK;
+} {
+  1  -  -
+  2  -  -
+  8  -  -
+  19 -  -
+  1  -  -
+  2  -  2
+  8  8  8
+  19 -  -
+}
+do_execsql_test 300 {
+  CREATE TABLE t2(x);
+  CREATE TRIGGER AFTER INSERT ON t2 BEGIN
+    UPDATE t1 SET b=c1.b, c=c2.c
+      FROM dual, c1 NATURAL RIGHT JOIN c2
+     WHERE x=a;
+  END;
+} {}
+do_execsql_test 310 {
+  BEGIN;
+  SELECT * FROM t1 ORDER BY a;
+  INSERT INTO t2(x) VALUES(1);
+  SELECT * FROM t1 ORDER BY a;
+  ROLLBACK;
+} {
+  1  -  -
+  2  -  -
+  8  -  -
+  19 -  -
+  1  -  -
+  2  -  2
+  8  8  8
+  19 -  -
+}
+
+# 2022-05-26 dbsqlfuzz crash-9401d6ba699f1257d352a657de236286bf2b14da
+#
+reset_db
+db null -
+do_execsql_test 400 {
+  CREATE TABLE t2(x,y,z PRIMARY KEY) WITHOUT ROWID;
+  INSERT INTO t2 VALUES(89,-89,6);
+  CREATE TABLE t1(a INT,b TEXT,c TEXT,d REAL) STRICT;
+  INSERT INTO t1 VALUES(1,'xyz','def',4.5);
+  CREATE TRIGGER t1tr BEFORE UPDATE ON t1 BEGIN
+    INSERT INTO t1(a,b) VALUES(1000,'uvw');
+    UPDATE t1 SET b=NULL FROM (SELECT CAST(a AS varchar) FROM t1 ORDER BY b) NATURAL LEFT FULL JOIN t1 AS text;
+  END;
+  UPDATE t1 SET b=b|100;
+  SELECT * FROM t1 ORDER BY a;
+} {
+  1    100  def 4.5
+  1000 -    -   -
+}
+
+# Forum post https://sqlite.org/forum/forumpost/36ff78b2a3
+#
+ifcapable update_delete_limit {
+  reset_db
+  do_execsql_test 500 {
+    CREATE TABLE t1(abc INT, def INT);  
+    INSERT INTO t1 VALUES(0,0);
+    INSERT INTO t1 VALUES(0,0);
+    INSERT INTO t1 VALUES(0,0);
+    CREATE TABLE dual(dummy TEXT);  
+    INSERT INTO dual(dummy) VALUES('X');
+  } {}
+  
+  do_execsql_test 510 {
+    UPDATE t1
+      SET (abc, def)=(SELECT  x, 123)
+      FROM dual LEFT JOIN (SELECT 789 AS 'x' FROM dual) AS d2
+      LIMIT 2
+  }
+  
+  do_execsql_test 520 {
+    SELECT * FROM t1
+  } {789 123 789 123 0 0}
+}
+
+
+finish_test
diff --git a/test/upfromfault.test b/test/upfromfault.test
new file mode 100644
index 0000000000000000000000000000000000000000..e876c071cb7810f38fad987f19deaca5044b405b
--- /dev/null
+++ b/test/upfromfault.test
@@ -0,0 +1,139 @@
+# 2020 April 29
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix upfromfault
+
+foreach {tn sql} {
+  1 {
+    CREATE TABLE t1(x PRIMARY KEY, y, z UNIQUE);
+    CREATE INDEX t1y ON t1(y);
+  }
+  2 {
+    CREATE TABLE t1(x PRIMARY KEY, y, z UNIQUE) WITHOUT ROWID;
+    CREATE INDEX t1y ON t1(y);
+  }
+  3 {
+    CREATE TABLE t1(x, y, z UNIQUE, PRIMARY KEY(x,y)) WITHOUT ROWID;
+  }
+  4 {
+    CREATE VIRTUAL TABLE t1 USING fts5(x, y, z);
+  }
+  5 {
+    CREATE TABLE real(x, y, z);
+    CREATE VIEW t1 AS SELECT * FROM real;
+    CREATE TRIGGER t1_insert INSTEAD OF INSERT ON t1 BEGIN
+      INSERT INTO real VALUES(new.x, new.y, new.z);
+    END;
+    CREATE TRIGGER t1_update INSTEAD OF UPDATE ON t1 BEGIN
+      INSERT INTO log VALUES(old.z || '->' || new.z);
+      UPDATE real SET y=new.y, z=new.z WHERE x=old.x;
+    END;
+  }
+} {
+if {$tn<5} continue
+  reset_db
+
+  ifcapable !fts5 { if {$tn==4} continue }
+
+  execsql $sql
+  do_execsql_test 1.$tn.0 {
+    CREATE TABLE log(t TEXT);
+
+    INSERT INTO t1 VALUES(1, 'i',   'one');
+    INSERT INTO t1 VALUES(2, 'ii',  'two');
+    INSERT INTO t1 VALUES(3, 'iii', 'three');
+    INSERT INTO t1 VALUES(4, 'iv',  'four');
+  }
+  if {$tn!=4 && $tn!=5} {
+    do_execsql_test 1.$tn.0b {
+      CREATE TRIGGER tr1 BEFORE UPDATE ON t1 BEGIN
+        INSERT INTO log VALUES(old.z || '->' || new.z);
+      END;
+      CREATE TRIGGER tr2 AFTER UPDATE ON t1 BEGIN
+        INSERT INTO log VALUES(old.y || '->' || new.y);
+      END;
+    }
+  }
+  
+  faultsim_save_and_close
+
+  do_faultsim_test 1.$tn -prep {
+    faultsim_restore_and_reopen
+    execsql { SELECT * FROM t1 }
+  } -body {
+    execsql {
+      WITH data(k, v) AS (
+          VALUES(3, 'thirty'), (1, 'ten')
+      )
+      UPDATE t1 SET z=v FROM data WHERE x=k;
+    }
+  } -test {
+    faultsim_test_result {0 {}} {1 {vtable constructor failed: t1}}
+    if {$testrc==0} {
+      set res [execsql { SELECT * FROM t1 }]
+      if {$res!="1 i ten 2 ii two 3 iii thirty 4 iv four"} {
+        error "unexpected result: $res"
+      }
+    }
+  }
+}
+
+reset_db
+do_execsql_test 2.0 {
+  CREATE TABLE t1(a, b, c);
+  CREATE TABLE t2(x, y, z);
+}
+faultsim_save_and_close
+do_faultsim_test 2.1 -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql {
+    CREATE TRIGGER tr1 AFTER INSERT ON t1 BEGIN
+      UPDATE t2 SET x=a FROM t1 WHERE c=z;
+    END;
+  }
+} -test {
+    faultsim_test_result {0 {}}
+}
+
+faultsim_restore_and_reopen
+do_execsql_test 2.2 {
+  CREATE TRIGGER tr1 AFTER INSERT ON t1 BEGIN
+    UPDATE t1 SET a=x FROM t2 WHERE c=z;
+  END;
+
+  INSERT INTO t2 VALUES(1, 1, 1);
+  INSERT INTO t2 VALUES(2, 2, 2);
+  INSERT INTO t2 VALUES(3, 3, 3);
+} 
+faultsim_save_and_close
+
+do_faultsim_test 2.3 -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql {
+    INSERT INTO t1 VALUES(NULL, NULL, 1), (NULL, NULL, 3);
+  }
+} -test {
+  faultsim_test_result {0 {}}
+  if {$testrc==0} {
+    set res [execsql { SELECT * FROM t1 }]
+    if {$res!="1 {} 1 3 {} 3"} {
+      error "unexpected result: $res"
+    }
+  }
+}
+
+
+finish_test
diff --git a/test/upsert1.test b/test/upsert1.test
new file mode 100644
index 0000000000000000000000000000000000000000..8af273a89ac8bbd566fba8001decc1b9ef6f71d5
--- /dev/null
+++ b/test/upsert1.test
@@ -0,0 +1,295 @@
+# 2018-04-12
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test cases for UPSERT
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix zipfile
+
+do_execsql_test upsert1-100 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b TEXT, c DEFAULT 0);
+  CREATE UNIQUE INDEX t1x1 ON t1(b);
+  INSERT INTO t1(a,b) VALUES(1,2) ON CONFLICT DO NOTHING;
+  INSERT INTO t1(a,b) VALUES(1,99),(99,2) ON CONFLICT DO NOTHING;
+  SELECT * FROM t1;
+} {1 2 0}
+do_execsql_test upsert1-101 {
+  DELETE FROM t1;
+  INSERT INTO t1(a,b) VALUES(2,3) ON CONFLICT(a) DO NOTHING;
+  INSERT INTO t1(a,b) VALUES(2,99) ON CONFLICT(a) DO NOTHING;
+  SELECT * FROM t1;
+} {2 3 0}
+do_execsql_test upsert1-102 {
+  DELETE FROM t1;
+  INSERT INTO t1(a,b) VALUES(3,4) ON CONFLICT(b) DO NOTHING;
+  INSERT INTO t1(a,b) VALUES(99,4) ON CONFLICT(b) DO NOTHING;
+  SELECT * FROM t1;
+} {3 4 0}
+do_catchsql_test upsert1-110 {
+  INSERT INTO t1(a,b) VALUES(5,6) ON CONFLICT(x) DO NOTHING;
+  SELECT * FROM t1;
+} {1 {no such column: x}}
+do_catchsql_test upsert1-120 {
+  INSERT INTO t1(a,b) VALUES(5,6) ON CONFLICT(c) DO NOTHING;
+  SELECT * FROM t1;
+} {1 {ON CONFLICT clause does not match any PRIMARY KEY or UNIQUE constraint}}
+breakpoint
+do_catchsql_test upsert1-130 {
+  INSERT INTO t1(a,b) VALUES(5,6) ON CONFLICT(b COLLATE nocase) DO NOTHING;
+  SELECT * FROM t1;
+} {1 {ON CONFLICT clause does not match any PRIMARY KEY or UNIQUE constraint}}
+do_execsql_test upsert1-140 {
+  DELETE FROM t1;
+  INSERT INTO t1(a,b) VALUES(5,6) ON CONFLICT(b COLLATE binary) DO NOTHING;
+  SELECT * FROM t1;
+} {5 6 0}
+
+do_catchsql_test upsert1-200 {
+  DROP TABLE t1;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b INT, c DEFAULT 0);
+  CREATE UNIQUE INDEX t1x1 ON t1(a+b);
+  INSERT INTO t1(a,b) VALUES(7,8) ON CONFLICT(a+b) DO NOTHING;
+  INSERT INTO t1(a,b) VALUES(8,7),(9,6) ON CONFLICT(a+b) DO NOTHING;
+  SELECT * FROM t1;
+} {0 {7 8 0}}
+do_catchsql_test upsert1-201 {
+  INSERT INTO t1(a,b) VALUES(8,7),(9,6) ON CONFLICT(a) DO NOTHING;
+} {1 {UNIQUE constraint failed: index 't1x1'}}
+do_catchsql_test upsert1-210 {
+  DELETE FROM t1;
+  INSERT INTO t1(a,b) VALUES(9,10) ON CONFLICT(a+(+b)) DO NOTHING;
+  SELECT * FROM t1;
+} {1 {ON CONFLICT clause does not match any PRIMARY KEY or UNIQUE constraint}}
+
+do_catchsql_test upsert1-300 {
+  DROP INDEX t1x1;
+  DELETE FROM t1;
+  CREATE UNIQUE INDEX t1x1 ON t1(b) WHERE b>10;
+  INSERT INTO t1(a,b) VALUES(1,2),(3,2) ON CONFLICT(b) DO NOTHING;
+  SELECT * FROM t1;
+} {1 {ON CONFLICT clause does not match any PRIMARY KEY or UNIQUE constraint}}
+do_catchsql_test upsert1-310 {
+  DELETE FROM t1;
+  INSERT INTO t1(a,b) VALUES(1,2),(3,2) ON CONFLICT(b) WHERE b!=10 DO NOTHING;
+  SELECT * FROM t1;
+} {1 {ON CONFLICT clause does not match any PRIMARY KEY or UNIQUE constraint}}
+do_execsql_test upsert1-320 {
+  DELETE FROM t1;
+  INSERT INTO t1(a,b) VALUES(1,2),(3,2),(4,20),(5,20)
+         ON CONFLICT(b) WHERE b>10 DO NOTHING;
+  SELECT *, 'x' FROM t1 ORDER BY b, a;
+} {1 2 0 x 3 2 0 x 4 20 0 x}
+
+# Upsert works with count_changes=on;
+do_execsql_test upsert1-400 {
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t2(a TEXT UNIQUE, b INT DEFAULT 1);
+  INSERT INTO t2(a) VALUES('one'),('two'),('three');
+  PRAGMA count_changes=ON;
+  INSERT INTO t2(a) VALUES('one'),('one'),('three'),('four')
+      ON CONFLICT(a) DO UPDATE SET b=b+1;
+} {1}
+do_execsql_test upsert1-410 {
+  PRAGMA count_changes=OFF;
+  SELECT a, b FROM t2 ORDER BY a;
+} {four 1 one 3 three 2 two 1}
+
+# Problem found by AFL prior to any release
+do_execsql_test upsert1-500 {
+  DROP TABLE t1;
+  CREATE TABLE t1(x INTEGER PRIMARY KEY, y INT UNIQUE);
+  INSERT INTO t1(x,y) SELECT 1,2 WHERE true
+    ON CONFLICT(x) DO UPDATE SET y=max(t1.y,excluded.y) AND true;
+  SELECT * FROM t1;
+} {1 2}
+
+# 2018-07-11
+# Ticket https://sqlite.org/src/tktview/79cad5e4b2e219dd197242e9e5f4
+# UPSERT leads to a corrupt index.
+#
+do_execsql_test upsert1-600 {
+  DROP TABLE t1;
+  CREATE TABLE t1(b UNIQUE, a INT PRIMARY KEY) WITHOUT ROWID;
+  INSERT OR IGNORE INTO t1(a) VALUES('1') ON CONFLICT(a) DO NOTHING;
+  PRAGMA integrity_check;
+} {ok}
+do_execsql_test upsert1-610 {
+  DELETE FROM t1;
+  INSERT OR IGNORE INTO t1(a) VALUES('1'),(1) ON CONFLICT(a) DO NOTHING;
+  PRAGMA integrity_check;
+} {ok}
+
+# 2018-08-14
+# Ticket https://www.sqlite.org/src/info/908f001483982c43
+# If there are multiple uniqueness contraints, the UPSERT should fire
+# if the one constraint it targets fails, regardless of whether or not
+# the other constraints pass or fail.  In other words, the UPSERT constraint
+# should be tested first.
+#
+do_execsql_test upsert1-700 {
+  DROP TABLE t1;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b INT, c INT, d INT, e INT);
+  CREATE UNIQUE INDEX t1b ON t1(b);
+  CREATE UNIQUE INDEX t1e ON t1(e);
+  INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+  INSERT INTO t1(a,b,c,d,e) VALUES(1,2,33,44,5)
+    ON CONFLICT(e) DO UPDATE SET c=excluded.c;
+  SELECT * FROM t1;
+} {1 2 33 4 5}
+do_execsql_test upsert1-710 {
+  DELETE FROM t1;
+  INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+  INSERT INTO t1(a,b,c,d,e) VALUES(1,2,33,44,5)
+    ON CONFLICT(a) DO UPDATE SET c=excluded.c;
+  SELECT * FROM t1;
+} {1 2 33 4 5}
+do_execsql_test upsert1-720 {
+  DELETE FROM t1;
+  INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+  INSERT INTO t1(a,b,c,d,e) VALUES(1,2,33,44,5)
+    ON CONFLICT(b) DO UPDATE SET c=excluded.c;
+  SELECT * FROM t1;
+} {1 2 33 4 5}
+do_execsql_test upsert1-730 {
+  DROP TABLE t1;
+  CREATE TABLE t1(a INT, b INT, c INT, d INT, e INT);
+  CREATE UNIQUE INDEX t1a ON t1(a);
+  CREATE UNIQUE INDEX t1b ON t1(b);
+  CREATE UNIQUE INDEX t1e ON t1(e);
+  INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+  INSERT INTO t1(a,b,c,d,e) VALUES(1,2,33,44,5)
+    ON CONFLICT(e) DO UPDATE SET c=excluded.c;
+  SELECT * FROM t1;
+} {1 2 33 4 5}
+do_execsql_test upsert1-740 {
+  DELETE FROM t1;
+  INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+  INSERT INTO t1(a,b,c,d,e) VALUES(1,2,33,44,5)
+    ON CONFLICT(a) DO UPDATE SET c=excluded.c;
+  SELECT * FROM t1;
+} {1 2 33 4 5}
+do_execsql_test upsert1-750 {
+  DELETE FROM t1;
+  INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+  INSERT INTO t1(a,b,c,d,e) VALUES(1,2,33,44,5)
+    ON CONFLICT(b) DO UPDATE SET c=excluded.c;
+  SELECT * FROM t1;
+} {1 2 33 4 5}
+do_execsql_test upsert1-760 {
+  DROP TABLE t1;
+  CREATE TABLE t1(a INT PRIMARY KEY, b INT, c INT, d INT, e INT) WITHOUT ROWID;
+  CREATE UNIQUE INDEX t1a ON t1(a);
+  CREATE UNIQUE INDEX t1b ON t1(b);
+  CREATE UNIQUE INDEX t1e ON t1(e);
+  INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+  INSERT INTO t1(a,b,c,d,e) VALUES(1,2,33,44,5)
+    ON CONFLICT(e) DO UPDATE SET c=excluded.c;
+  SELECT * FROM t1;
+} {1 2 33 4 5}
+do_execsql_test upsert1-770 {
+  DELETE FROM t1;
+  INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+  INSERT INTO t1(a,b,c,d,e) VALUES(1,2,33,44,5)
+    ON CONFLICT(a) DO UPDATE SET c=excluded.c;
+  SELECT * FROM t1;
+} {1 2 33 4 5}
+do_execsql_test upsert1-780 {
+  DELETE FROM t1;
+  INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+  INSERT INTO t1(a,b,c,d,e) VALUES(1,2,33,44,5)
+    ON CONFLICT(b) DO UPDATE SET c=excluded.c;
+  SELECT * FROM t1;
+} {1 2 33 4 5}
+
+# 2019-08-30 ticket https://sqlite.org/src/info/5a3dba8104421320
+do_execsql_test upsert1-800 {
+  DROP TABLE IF EXISTS t0;
+  CREATE TABLE t0(c0 REAL UNIQUE, c1);
+  CREATE UNIQUE INDEX test800i0 ON t0(0 || c1);
+  INSERT INTO t0(c0, c1) VALUES (1, 2),  (2, 1);
+  INSERT INTO t0(c0) VALUES (1) ON CONFLICT(c0) DO UPDATE SET c1=excluded.c0;
+  PRAGMA integrity_check;
+  REINDEX;
+} {ok}
+
+# 2019-12-06 gramfuzz find
+sqlite3 db :memory:
+do_execsql_test upsert1-900 {
+  CREATE VIEW t1(a) AS SELECT 1;
+  CREATE TRIGGER t1r1 INSTEAD OF INSERT ON t1 BEGIN
+     SELECT 2;
+  END;
+}
+do_catchsql_test upsert1-910 {
+  INSERT INTO t1 VALUES(3) ON CONFLICT(x) DO NOTHING;
+} {1 {cannot UPSERT a view}}
+
+# 2019-12-26 ticket 7c13db5c3bf74001
+reset_db
+do_catchsql_test upsert1-1000 {
+  CREATE TABLE t0(c0 PRIMARY KEY, c1, c2 UNIQUE) WITHOUT ROWID;
+  INSERT OR FAIL INTO t0(c2) VALUES (0), (NULL)
+    ON CONFLICT(c2) DO UPDATE SET c1 = c0;
+} {1 {NOT NULL constraint failed: t0.c0}}
+
+# 2021-12-29 forum post https://sqlite.org/forum/forumpost/06b16b8b29f8c8c3
+# By Jingzhou Fu. When there is both an INTEGER PRIMARY KEY ON CONFLICT REPLACE
+# and an upsert on a constraint other than the INTEGER PRIMARY KEY, the
+# constraint checking logic generates invalid bytecode which might result
+# in a NULL pointer dereference.
+#
+reset_db
+do_execsql_test upsert1-1100 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY ON CONFLICT REPLACE, b UNIQUE);
+  INSERT INTO t1(b) VALUES(22);
+  INSERT INTO t1 VALUES(2,22) ON CONFLICT (b) DO NOTHING;
+  SELECT * FROM t1;
+} {1 22}
+
+# 2023-08-17 dbsqlfuzz 9983e2c77634a8ccf33b5c91fa9982599de5f9e9
+# Bound parameters in the ON CONFLICT clause of an UPSERT.
+#
+reset_db
+do_execsql_test upsert1-1200 {
+  CREATE TABLE t1(a INT, b INT);
+  CREATE UNIQUE INDEX t1x ON t1(b+3);
+}
+sqlite3_db_config db ENABLE_QPSG 1
+do_catchsql_test upsert1-1210 {
+  INSERT INTO t1(a,b) VALUES(1,2) ON CONFLICT(b+?1) DO NOTHING;
+} {1 {ON CONFLICT clause does not match any PRIMARY KEY or UNIQUE constraint}}
+
+# 2024-04-11 https://sqlite.org/forum/forumpost/284955a3cd454a15
+# Incorrect value passed into a trigger that fires as the result of
+# an upsert.
+#
+reset_db
+do_execsql_test upsert1-1300 {
+  CREATE TABLE t1(x INT, y TEXT);
+  INSERT INTO t1 VALUES
+    (11, printf('%.9000c','a')),
+    (11, printf('%.9000c','a')),
+    (33, printf('%.9000c','b')),
+    (33, printf('%.9000c','b'));
+  CREATE TABLE t2(x INT UNIQUE, y TEXT);
+  CREATE TRIGGER r1 BEFORE UPDATE ON t2 BEGIN
+    SELECT raise(ABORT,'Incorrect old.y value passed to trigger!')
+     WHERE old.y != new.y;
+    /* ^^^ This trigger will fire and cause the ABORT if the problem has
+    ** not been fixed, or if there is a regression. */
+  END;
+  INSERT INTO t2(x, y) SELECT x, y FROM t1
+   WHERE true
+   ON CONFLICT (x) DO UPDATE SET y = excluded.y;
+} {}
+
+finish_test
diff --git a/test/upsert2.test b/test/upsert2.test
new file mode 100644
index 0000000000000000000000000000000000000000..5cbc4656a45747fac5ff6f16c059fbd8df1add71
--- /dev/null
+++ b/test/upsert2.test
@@ -0,0 +1,170 @@
+# 2018-04-17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test cases for UPSERT
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix zipfile
+
+do_execsql_test upsert2-100 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b int, c DEFAULT 0);
+  INSERT INTO t1(a,b) VALUES(1,2),(3,4);
+  INSERT INTO t1(a,b) VALUES(1,8),(2,11),(3,1)
+    ON CONFLICT(a) DO UPDATE SET b=excluded.b, c=c+1 WHERE t1.b<excluded.b;
+  SELECT *, 'x' FROM t1 ORDER BY a;
+} {1 8 1 x 2 11 0 x 3 4 0 x}
+do_execsql_test upsert2-110 {
+  DROP TABLE t1;
+  CREATE TABLE t1(a INT PRIMARY KEY, b int, c DEFAULT 0) WITHOUT ROWID;
+  INSERT INTO t1(a,b) VALUES(1,2),(3,4);
+  INSERT INTO t1(a,b) VALUES(1,8),(2,11),(3,1)
+    ON CONFLICT(a) DO UPDATE SET b=excluded.b, c=c+1 WHERE t1.b<excluded.b;
+  SELECT *, 'x' FROM t1 ORDER BY a;
+} {1 8 1 x 2 11 0 x 3 4 0 x}
+
+do_execsql_test upsert2-200 {
+  DROP TABLE t1;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b int, c DEFAULT 0);
+  INSERT INTO t1(a,b) VALUES(1,2),(3,4);
+  WITH nx(a,b) AS (VALUES(1,8),(2,11),(3,1),(2,15),(1,4),(1,99))
+  INSERT INTO t1(a,b) SELECT a, b FROM nx WHERE true
+    ON CONFLICT(a) DO UPDATE SET b=excluded.b, c=c+1 WHERE t1.b<excluded.b;
+  SELECT *, 'x' FROM t1 ORDER BY a;
+} {1 99 2 x 2 15 1 x 3 4 0 x}
+do_execsql_test upsert2-201 {
+  DELETE FROM t1;
+  INSERT INTO t1(a,b) VALUES(1,2),(3,4);
+  WITH nx(a,b) AS (VALUES(1,8),(2,11),(3,1),(2,15),(1,4),(1,99))
+  INSERT INTO main.t1 AS t2(a,b) SELECT a, b FROM nx WHERE true
+    ON CONFLICT(a) DO UPDATE SET b=excluded.b, c=t2.c+1 WHERE t2.b<excluded.b;
+  SELECT *, 'x' FROM t1 ORDER BY a;
+} {1 99 2 x 2 15 1 x 3 4 0 x}
+do_catchsql_test upsert2-202 {
+  WITH nx(a,b) AS (VALUES(1,8),(2,11),(3,1),(2,15),(1,4),(1,99))
+  INSERT INTO t1 AS t2(a,b) SELECT a, b FROM nx WHERE true
+    ON CONFLICT(a) DO UPDATE SET b=excluded.b, c=t1.c+1 WHERE t1.b<excluded.b;
+} {1 {no such column: t1.c}}
+do_execsql_test upsert2-210 {
+  DROP TABLE t1;
+  CREATE TABLE t1(a INT PRIMARY KEY, b int, c DEFAULT 0) WITHOUT ROWID;
+  INSERT INTO t1(a,b) VALUES(1,2),(3,4);
+  WITH nx(a,b) AS (VALUES(1,8),(2,11),(3,1),(2,15),(1,4),(1,99))
+  INSERT INTO t1(a,b) SELECT a, b FROM nx WHERE true
+    ON CONFLICT(a) DO UPDATE SET b=excluded.b, c=c+1 WHERE t1.b<excluded.b;
+  SELECT *, 'x' FROM t1 ORDER BY a;
+} {1 99 2 x 2 15 1 x 3 4 0 x}
+
+# On an ON CONFLICT DO UPDATE, the before-insert, before-update, and
+# after-update triggers fire.
+#
+do_execsql_test upsert2-300 {
+  DROP TABLE t1;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b int, c DEFAULT 0);
+  CREATE TABLE record(x TEXT, y TEXT);
+  CREATE TRIGGER r1 BEFORE INSERT ON t1 BEGIN
+    INSERT INTO record(x,y)
+        VALUES('before-insert',format('%d,%d,%d',new.a,new.b,new.c));
+  END;
+  CREATE TRIGGER r2 AFTER INSERT ON t1 BEGIN
+    INSERT INTO record(x,y)
+        VALUES('after-insert',printf('%d,%d,%d',new.a,new.b,new.c));
+  END;
+  CREATE TRIGGER r3 BEFORE UPDATE ON t1 BEGIN
+    INSERT INTO record(x,y)
+        VALUES('before-update',format('%d,%d,%d/%d,%d,%d',
+                                      old.a,old.b,old.c,new.a,new.b,new.c));
+  END;
+  CREATE TRIGGER r4 AFTER UPDATE ON t1 BEGIN
+    INSERT INTO record(x,y)
+        VALUES('after-update',printf('%d,%d,%d/%d,%d,%d',
+                                      old.a,old.b,old.c,new.a,new.b,new.c));
+  END;
+  INSERT INTO t1(a,b) VALUES(1,2);
+  DELETE FROM record;
+  INSERT INTO t1(a,b) VALUES(1,2)
+    ON CONFLICT(a) DO UPDATE SET c=t1.c+1;
+  SELECT * FROM record
+} {before-insert 1,2,0 before-update 1,2,0/1,2,1 after-update 1,2,0/1,2,1}
+
+# On an ON CONFLICT DO NOTHING, only the before-insert trigger fires.
+#
+do_execsql_test upsert2-310 {
+  DELETE FROM record;
+  INSERT INTO t1(a,b) VALUES(1,2) ON CONFLICT DO NOTHING;
+  SELECT * FROM record;
+} {before-insert 1,2,0}
+
+# With ON CONFLICT DO UPDATE and a failed WHERE, only the before-insert
+# trigger fires.
+#
+do_execsql_test upsert2-320 {
+  DELETE FROM record;
+  INSERT INTO t1(a,b) VALUES(1,2)
+    ON CONFLICT(a) DO UPDATE SET c=c+1 WHERE c<0;
+  SELECT * FROM record;
+} {before-insert 1,2,0}
+do_execsql_test upsert2-321 {
+  SELECT * FROM t1;
+} {1 2 1}
+
+# Trigger tests repeated for a WITHOUT ROWID table.
+#
+do_execsql_test upsert2-400 {
+  DROP TABLE t1;
+  CREATE TABLE t1(a INT PRIMARY KEY, b int, c DEFAULT 0) WITHOUT ROWID;
+  CREATE TRIGGER r1 BEFORE INSERT ON t1 BEGIN
+    INSERT INTO record(x,y)
+        VALUES('before-insert',format('%d,%d,%d',new.a,new.b,new.c));
+  END;
+  CREATE TRIGGER r2 AFTER INSERT ON t1 BEGIN
+    INSERT INTO record(x,y)
+        VALUES('after-insert',printf('%d,%d,%d',new.a,new.b,new.c));
+  END;
+  CREATE TRIGGER r3 BEFORE UPDATE ON t1 BEGIN
+    INSERT INTO record(x,y)
+        VALUES('before-update',format('%d,%d,%d/%d,%d,%d',
+                                      old.a,old.b,old.c,new.a,new.b,new.c));
+  END;
+  CREATE TRIGGER r4 AFTER UPDATE ON t1 BEGIN
+    INSERT INTO record(x,y)
+        VALUES('after-update',printf('%d,%d,%d/%d,%d,%d',
+                                      old.a,old.b,old.c,new.a,new.b,new.c));
+  END;
+  INSERT INTO t1(a,b) VALUES(1,2);
+  DELETE FROM record;
+  INSERT INTO t1(a,b) VALUES(1,2)
+    ON CONFLICT(a) DO UPDATE SET c=t1.c+1;
+  SELECT * FROM record
+} {before-insert 1,2,0 before-update 1,2,0/1,2,1 after-update 1,2,0/1,2,1}
+
+# On an ON CONFLICT DO NOTHING, only the before-insert trigger fires.
+#
+do_execsql_test upsert2-410 {
+  DELETE FROM record;
+  INSERT INTO t1(a,b) VALUES(1,2) ON CONFLICT DO NOTHING;
+  SELECT * FROM record;
+} {before-insert 1,2,0}
+
+# With ON CONFLICT DO UPDATE and a failed WHERE, only the before-insert
+# trigger fires.
+#
+do_execsql_test upsert2-420 {
+  DELETE FROM record;
+  INSERT INTO t1(a,b) VALUES(1,2)
+    ON CONFLICT(a) DO UPDATE SET c=c+1 WHERE c<0;
+  SELECT * FROM record;
+} {before-insert 1,2,0}
+do_execsql_test upsert2-421 {
+  SELECT * FROM t1;
+} {1 2 1}
+
+finish_test
diff --git a/test/upsert3.test b/test/upsert3.test
new file mode 100644
index 0000000000000000000000000000000000000000..b6242e9ff8247ad0b5897917c407b18d24a24c0f
--- /dev/null
+++ b/test/upsert3.test
@@ -0,0 +1,58 @@
+# 2018-04-17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test cases for UPSERT
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix zipfile
+
+do_execsql_test upsert3-100 {
+  CREATE TABLE t1(k int, v text);
+  CREATE UNIQUE INDEX x1 ON t1(k, v);
+} {}
+do_catchsql_test upsert3-110 {
+  INSERT INTO t1 VALUES(0,'abcdefghij')
+     ON CONFLICT(k) DO NOTHING;
+} {1 {ON CONFLICT clause does not match any PRIMARY KEY or UNIQUE constraint}}
+do_catchsql_test upsert3-120 {
+  INSERT INTO t1 VALUES(0,'abcdefghij')
+     ON CONFLICT(v) DO NOTHING;
+} {1 {ON CONFLICT clause does not match any PRIMARY KEY or UNIQUE constraint}}
+
+do_execsql_test upsert3-130 {
+  INSERT INTO t1 VALUES(0, 'abcdefghij')
+      ON CONFLICT(k,v) DO NOTHING;
+  SELECT * FROM t1;
+} {0 abcdefghij}
+do_execsql_test upsert3-140 {
+  INSERT INTO t1 VALUES(0, 'abcdefghij')
+      ON CONFLICT(v,k) DO NOTHING;
+  SELECT * FROM t1;
+} {0 abcdefghij}
+
+do_execsql_test upsert3-200 {
+  CREATE TABLE excluded(a INT, b INT, c INT DEFAULT 0);
+  CREATE UNIQUE INDEX excludedab ON excluded(a,b);
+  INSERT INTO excluded(a,b) VALUES(1,2),(1,2),(3,4),(1,2),(5,6),(3,4)
+    ON CONFLICT(b,a) DO UPDATE SET c=excluded.c+1;
+  SELECT *, 'x' FROM excluded ORDER BY a;
+} {1 2 2 x 3 4 1 x 5 6 0 x}
+do_execsql_test upsert3-210 {
+  INSERT INTO excluded AS base(a,b,c) VALUES(1,2,8),(1,2,3)
+    ON CONFLICT(b,a) DO UPDATE SET c=excluded.c+1 WHERE base.c<excluded.c;
+  SELECT *, 'x' FROM excluded ORDER BY a;
+} {1 2 9 x 3 4 1 x 5 6 0 x}
+
+
+
+finish_test
diff --git a/test/upsert4.test b/test/upsert4.test
new file mode 100644
index 0000000000000000000000000000000000000000..c4bcc0329d727b966bb24308972a0db135664e76
--- /dev/null
+++ b/test/upsert4.test
@@ -0,0 +1,407 @@
+# 2018-04-17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test cases for UPSERT
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix upsert4
+
+foreach {tn sql} {
+  1 { CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c UNIQUE) }
+  2 { CREATE TABLE t1(a INT PRIMARY KEY, b, c UNIQUE) }
+  3 { CREATE TABLE t1(a INT PRIMARY KEY, b, c UNIQUE) WITHOUT ROWID}
+} {
+  reset_db
+  execsql $sql
+
+  do_execsql_test 1.$tn.0 {
+    INSERT INTO t1 VALUES(1, NULL, 'one');
+    INSERT INTO t1 VALUES(2, NULL, 'two');
+    INSERT INTO t1 VALUES(3, NULL, 'three');
+  }
+  
+  do_execsql_test 1.$tn.1 {
+    INSERT INTO t1 VALUES(1, NULL, 'xyz') ON CONFLICT DO NOTHING;
+    SELECT * FROM t1;
+  } {
+    1 {} one 2 {} two 3 {} three
+  }
+  
+  do_execsql_test 1.$tn.2 {
+    INSERT INTO t1 VALUES(4, NULL, 'two') ON CONFLICT DO NOTHING;
+    SELECT * FROM t1;
+  } {
+    1 {} one 2 {} two 3 {} three
+  }
+  
+  do_execsql_test 1.$tn.3 {
+    INSERT INTO t1 VALUES(4, NULL, 'two') ON CONFLICT (c) DO UPDATE SET b = 1;
+    SELECT * FROM t1;
+  } {
+    1 {} one 2 1 two 3 {} three
+  }
+  
+  do_execsql_test 1.$tn.4 {
+    INSERT INTO t1 VALUES(2, NULL, 'zero') ON CONFLICT (a) DO UPDATE SET b=2;
+    SELECT * FROM t1;
+  } {1 {} one 2 2 two 3 {} three}
+
+  do_catchsql_test 1.$tn.5 {
+    INSERT INTO t1 VALUES(2, NULL, 'zero') ON CONFLICT (a) 
+      DO UPDATE SET c = 'one';
+  } {1 {UNIQUE constraint failed: t1.c}}
+
+  do_execsql_test 1.$tn.6 {
+    SELECT * FROM t1;
+  } {1 {} one 2 2 two 3 {} three}
+
+  do_execsql_test 1.$tn.7 {
+    INSERT INTO t1 VALUES(2, NULL, 'zero') ON CONFLICT (a) 
+      DO UPDATE SET (b, c) = (SELECT 'x', 'y');
+    SELECT * FROM t1;
+  } {1 {} one 2 x y 3 {} three}
+
+  do_execsql_test 1.$tn.8 {
+    INSERT INTO t1 VALUES(1, NULL, NULL) ON CONFLICT (a) 
+      DO UPDATE SET (c, a) = ('four', 4);
+    SELECT * FROM t1 ORDER BY 1;
+  } {2 x y 3 {} three 4 {} four}
+}
+
+#-------------------------------------------------------------------------
+# Test target analysis.
+#
+set rtbl(0) {0 {}}
+set rtbl(1) {/1 .*failed.*/}
+set rtbl(2) {1 {ON CONFLICT clause does not match any PRIMARY KEY or UNIQUE constraint}}
+
+foreach {tn sql} {
+  1 { 
+      CREATE TABLE xyz(a INTEGER PRIMARY KEY, b, c, d);
+      CREATE UNIQUE INDEX xyz1 ON xyz(d, c, b COLLATE nocase);
+  }
+
+  2 { 
+      CREATE TABLE xyz(a INT PRIMARY KEY, b, c, d);
+      CREATE UNIQUE INDEX xyz1 ON xyz(d, c, b COLLATE nocase);
+  }
+
+  3 { 
+      CREATE TABLE xyz(a INT PRIMARY KEY, b, c, d) WITHOUT ROWID;
+      CREATE UNIQUE INDEX xyz1 ON xyz(d, c, b COLLATE nocase);
+  }
+} {
+  reset_db
+  execsql $sql
+  do_execsql_test 2.$tn.1 {
+    INSERT INTO xyz VALUES(10, 1, 1, 'one');
+  }
+
+
+  foreach {tn2 oc res} {
+    1 "ON CONFLICT (b COLLATE nocase, c, d) DO NOTHING"   0
+    2 "ON CONFLICT (b, c, d) DO NOTHING"                  0
+    3 "ON CONFLICT (b, c COLLATE nocase, d) DO NOTHING"   2
+    4 "ON CONFLICT (a) DO NOTHING"                        1
+    5 "ON CONFLICT DO NOTHING"                            0
+    6 "ON CONFLICT (b, c, d) WHERE a!=0 DO NOTHING"       0
+    7 "ON CONFLICT (d, c, c) WHERE a!=0 DO NOTHING"       2
+    8 "ON CONFLICT (b COLLATE nocase, c COLLATE nocase, d) DO NOTHING"   2
+    9 "ON CONFLICT (b, c, d) WHERE b==45 DO NOTHING"      0
+  } {
+
+    do_catchsql_test 2.$tn.2.$tn2 "
+      INSERT INTO xyz VALUES(11, 1, 1, 'one') $oc
+    " $rtbl($res)
+  }
+
+  do_execsql_test 2.$tn.3 {
+    SELECT * FROM xyz;
+  } {10 1 1 one}
+}
+
+foreach {tn sql} {
+  1 {
+    CREATE TABLE abc(a INTEGER PRIMARY KEY, x, y);
+    CREATE UNIQUE INDEX abc1 ON abc(('x' || x) COLLATE nocase);
+  }
+  2 {
+    CREATE TABLE abc(a INT PRIMARY KEY, x, y);
+    CREATE UNIQUE INDEX abc1 ON abc(('x' || x) COLLATE nocase);
+  }
+  3 { 
+    CREATE TABLE abc(a INT PRIMARY KEY, x, y) WITHOUT ROWID;
+    CREATE UNIQUE INDEX abc1 ON abc(('x' || x) COLLATE nocase);
+  }
+} {
+  reset_db
+  execsql $sql
+  do_execsql_test 3.$tn.1 {
+    INSERT INTO abc VALUES(1, 'one', 'two');
+  }
+
+  foreach {tn2 oc res} {
+    1 "ON CONFLICT DO NOTHING"                             0
+    2 "ON CONFLICT ('x' || x) DO NOTHING"                  0
+    3 "ON CONFLICT (('x' || x) COLLATE nocase) DO NOTHING" 0
+    4 "ON CONFLICT (('x' || x) COLLATE binary) DO NOTHING" 2
+    5 "ON CONFLICT (x || 'x') DO NOTHING"                  2
+    6 "ON CONFLICT ((('x' || x))) DO NOTHING"              0
+  } {
+    do_catchsql_test 3.$tn.2.$tn2 "
+      INSERT INTO abc VALUES(2, 'one', NULL) $oc;
+    " $rtbl($res)
+  }
+
+  do_execsql_test 3.$tn.3 {
+    SELECT * FROM abc
+  } {1 one two}
+}
+
+foreach {tn sql} {
+  1 {
+    CREATE TABLE abc(a INTEGER PRIMARY KEY, x, y);
+    CREATE UNIQUE INDEX abc1 ON abc(x) WHERE y>0;
+    CREATE UNIQUE INDEX abc2 ON abc(y) WHERE x='xyz' COLLATE nocase;
+  }
+} {
+  reset_db
+  execsql $sql
+  do_execsql_test 4.$tn.1 {
+    INSERT INTO abc VALUES(1, 'one', 1);
+    INSERT INTO abc VALUES(2, 'two', 2);
+    INSERT INTO abc VALUES(3, 'xyz', 3);
+    INSERT INTO abc VALUES(4, 'XYZ', 4);
+  }
+
+  foreach {tn2 oc res} {
+    1 "ON CONFLICT DO NOTHING"                                 0
+    2 "ON CONFLICT(x) WHERE y>0 DO NOTHING"                    0
+    3 "ON CONFLICT(x) DO NOTHING"                              2
+    4 "ON CONFLICT(x) WHERE y>=0 DO NOTHING"                   2
+    5 "ON CONFLICT(y) WHERE x='xyz' COLLATE nocase DO NOTHING" 1
+  } {
+    do_catchsql_test 4.$tn.2.$tn2 "
+      INSERT INTO abc VALUES(5, 'one', 10) $oc
+    " $rtbl($res)
+  }
+
+  do_execsql_test 4.$tn.3 {
+    SELECT * FROM abc
+  } {1 one 1 2 two 2 3 xyz 3 4 XYZ 4}
+
+  foreach {tn2 oc res} {
+    1 "ON CONFLICT DO NOTHING"                                 0
+    2 "ON CONFLICT(y) WHERE x='xyz' COLLATE nocase DO NOTHING" 0
+    3 "ON CONFLICT(y) WHERE x='xyz' COLLATE binary DO NOTHING" 2
+    4 "ON CONFLICT(x) WHERE y>0 DO NOTHING"                    1
+  } {
+    do_catchsql_test 4.$tn.2.$tn2 "
+      INSERT INTO abc VALUES(5, 'xYz', 3) $oc
+    " $rtbl($res)
+  }
+}
+
+do_catchsql_test 5.0 {
+  CREATE TABLE w1(a INT PRIMARY KEY, x, y);
+  CREATE UNIQUE INDEX w1expr ON w1(('x' || x));
+  INSERT INTO w1 VALUES(2, 'one', NULL)
+    ON CONFLICT (('x' || x) COLLATE nocase) DO NOTHING;
+} {1 {ON CONFLICT clause does not match any PRIMARY KEY or UNIQUE constraint}}
+
+#-------------------------------------------------------------------------
+# Test that ON CONFLICT constraint processing occurs before any REPLACE
+# constraint processing.
+#
+foreach {tn sql} {
+  1 {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b UNIQUE, c);
+  }
+  2 {
+    CREATE TABLE t1(a INT PRIMARY KEY, b UNIQUE, c);
+  }
+  3 {
+    CREATE TABLE t1(a INT PRIMARY KEY, b UNIQUE, c) WITHOUT ROWID;
+  }
+} {
+  reset_db
+  execsql $sql
+  do_execsql_test 6.1.$tn {
+    INSERT INTO t1 VALUES(1, 1, 'one');
+    INSERT INTO t1 VALUES(2, 2, 'two');
+    INSERT OR REPLACE INTO t1 VALUES(1, 2, 'two') ON CONFLICT(b) DO NOTHING;
+    PRAGMA integrity_check;
+  } {ok}
+}
+
+foreach {tn sql} {
+  1 {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b UNIQUE, c UNIQUE);
+  }
+} {
+  reset_db
+  execsql $sql
+
+  do_execsql_test 6.2.$tn.1 {
+    INSERT INTO t1 VALUES(1, 1, 1);
+    INSERT INTO t1 VALUES(2, 2, 2);
+  }
+
+  do_execsql_test 6.2.$tn.2 {
+    INSERT OR REPLACE INTO t1 VALUES(3, 1, 1) ON CONFLICT(b) DO NOTHING;
+    SELECT * FROM t1;
+    PRAGMA integrity_check;
+  } {1 1 1 2 2 2 ok}
+
+  do_execsql_test 6.2.$tn.3 {
+    INSERT OR REPLACE INTO t1 VALUES(3, 2, 2) ON CONFLICT(c) DO NOTHING;
+    SELECT * FROM t1;
+    PRAGMA integrity_check;
+  } {1 1 1 2 2 2 ok}
+
+  do_execsql_test 6.2.$tn.2 {
+    INSERT OR REPLACE INTO t1 VALUES(3, 1, 1) ON CONFLICT(b) 
+      DO UPDATE SET b=b||'x';
+    SELECT * FROM t1;
+    PRAGMA integrity_check;
+  } {1 1x 1 2 2 2 ok}
+
+  do_execsql_test 6.2.$tn.2 {
+    INSERT OR REPLACE INTO t1 VALUES(3, 2, 2) ON CONFLICT(c) 
+      DO UPDATE SET c=c||'x';
+    SELECT * FROM t1;
+    PRAGMA integrity_check;
+  } {1 1x 1 2 2 2x ok}
+}
+
+#-------------------------------------------------------------------------
+# Test references to "excluded". And using an alias in an INSERT 
+# statement.
+#
+foreach {tn sql} {
+  1 {
+    CREATE TABLE t1(w, x, y, z, PRIMARY KEY(x, y));
+    CREATE UNIQUE INDEX zz ON t1(z);
+  }
+  2 {
+    CREATE TABLE t1(w, x, y, z, PRIMARY KEY(x, y)) WITHOUT ROWID;
+    CREATE UNIQUE INDEX zz ON t1(z);
+  }
+} {
+  reset_db
+  execsql $sql
+  do_execsql_test 7.$tn.0 {
+    INSERT INTO t1 VALUES('a', 1, 1, 1);
+    INSERT INTO t1 VALUES('b', 2, 2, 2);
+  }
+
+  do_execsql_test 7.$tn.1 {
+    INSERT INTO t1 VALUES('c', 3, 3, 1) ON CONFLICT(z) 
+      DO UPDATE SET w = excluded.w;
+    SELECT * FROM t1;
+  } {c 1 1 1 b 2 2 2}
+
+  do_execsql_test 7.$tn.2 {
+    INSERT INTO t1 VALUES('c', 2, 2, 3) ON CONFLICT(y, x) 
+      DO UPDATE SET w = w||w;
+    SELECT * FROM t1;
+  } {c 1 1 1 bb 2 2 2}
+
+  do_execsql_test 7.$tn.3 {
+    INSERT INTO t1 VALUES('c', 2, 2, 3) ON CONFLICT(y, x) 
+      DO UPDATE SET w = w||t1.w;
+    SELECT * FROM t1;
+  } {c 1 1 1 bbbb 2 2 2}
+
+  do_execsql_test 7.$tn.4 {
+    INSERT INTO t1 AS tbl VALUES('c', 2, 2, 3) ON CONFLICT(y, x) 
+      DO UPDATE SET w = w||tbl.w;
+    SELECT * FROM t1;
+  } {c 1 1 1 bbbbbbbb 2 2 2}
+}
+
+foreach {tn sql} {
+  1 {
+    CREATE TABLE excluded(w, x INTEGER, 'a b', z, PRIMARY KEY(x, 'a b'));
+    CREATE UNIQUE INDEX zz ON excluded(z);
+    CREATE INDEX zz2 ON excluded(z);
+  }
+  2 {
+    CREATE TABLE excluded(w, x, 'a b', z, PRIMARY KEY(x, 'a b')) WITHOUT ROWID;
+    CREATE UNIQUE INDEX zz ON excluded(z);
+    CREATE INDEX zz2 ON excluded(z);
+  }
+} {
+  reset_db
+  execsql $sql
+  do_execsql_test 8.$tn.0 {
+    INSERT INTO excluded VALUES('a', 1, 1, 1);
+    INSERT INTO excluded VALUES('b', 2, 2, 2);
+  }
+
+  # Note: An error in Postgres: "table reference "excluded" is ambiguous".
+  #
+  do_execsql_test 8.$tn.1 {
+    INSERT INTO excluded VALUES('hello', 1, 1, NULL) ON CONFLICT(x, "a b")
+      DO UPDATE SET w=excluded.w;
+    SELECT * FROM excluded;
+  } {a 1 1 1 b 2 2 2}
+
+  do_execsql_test 8.$tn.2 {
+    INSERT INTO excluded AS x1 VALUES('hello', 1, 1, NULL) ON CONFLICT(x, [a b])
+      DO UPDATE SET w=excluded.w;
+    SELECT * FROM excluded;
+  } {hello 1 1 1 b 2 2 2}
+
+  do_execsql_test 8.$tn.3 {
+    INSERT INTO excluded AS x1 VALUES('hello', 1, 1, NULL) ON CONFLICT(x, [a b])
+      DO UPDATE SET w=w||w WHERE excluded.w!='hello';
+    SELECT * FROM excluded;
+  } {hello 1 1 1 b 2 2 2}
+
+  do_execsql_test 8.$tn.4 {
+    INSERT INTO excluded AS x1 VALUES('hello', 1, 1, NULL) ON CONFLICT(x, [a b])
+      DO UPDATE SET w=w||w WHERE excluded.x=1;
+    SELECT * FROM excluded;
+  } {hellohello 1 1 1 b 2 2 2}
+
+  do_catchsql_test 8.$tn.5 {
+    INSERT INTO excluded AS x1 VALUES('hello', 1, 1, NULL) 
+      ON CONFLICT(x, [a b]) WHERE y=1
+      DO UPDATE SET w=w||w WHERE excluded.x=1;
+  } {1 {no such column: y}}
+}
+
+#--------------------------------------------------------------------------
+#
+do_execsql_test 9.0 {
+  CREATE TABLE v(x INTEGER);
+  CREATE TABLE hist(x INTEGER PRIMARY KEY, cnt INTEGER);
+  CREATE TRIGGER vt AFTER INSERT ON v BEGIN
+    INSERT INTO hist VALUES(new.x, 1) ON CONFLICT(x) DO
+      UPDATE SET cnt=cnt+1;
+  END;
+}
+
+do_execsql_test 9.1 {
+  INSERT INTO v VALUES(1), (4), (1), (5), (5), (8), (9), (1);
+  SELECT * FROM hist;
+} {
+  1 3
+  4 1
+  5 2
+  8 1
+  9 1
+}
+
+
+finish_test
diff --git a/test/upsert5.test b/test/upsert5.test
new file mode 100644
index 0000000000000000000000000000000000000000..e56e71d4b9b2eea36d804a7e1ef382db35d87745
--- /dev/null
+++ b/test/upsert5.test
@@ -0,0 +1,453 @@
+# 2020-12-11
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test cases for generalized UPSERT
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix upsert5
+
+foreach {tn sql} {
+  1 { CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c UNIQUE, d UNIQUE, e UNIQUE) }
+  2 { CREATE TABLE t1(a INT PRIMARY KEY, b, c UNIQUE, d UNIQUE, e UNIQUE) }
+  3 { CREATE TABLE t1(a INT PRIMARY KEY, b, c UNIQUE, d UNIQUE, e UNIQUE) WITHOUT ROWID}
+  4 { CREATE TABLE t1(e UNIQUE, d UNIQUE, c UNIQUE, a INTEGER PRIMARY KEY, b) }
+  5 { CREATE TABLE t1(e UNIQUE, d UNIQUE, c UNIQUE, a INT PRIMARY KEY, b) }
+  6 { CREATE TABLE t1(e UNIQUE, d UNIQUE, c UNIQUE, a INT PRIMARY KEY, b) WITHOUT ROWID}
+} {
+  reset_db
+  execsql $sql
+
+  do_execsql_test 1.$tn.100 {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,NULL,3,4,5)
+      ON CONFLICT(a) DO UPDATE SET b='a'
+      ON CONFLICT(c) DO UPDATE SET b='c'
+      ON CONFLICT(d) DO UPDATE SET b='d'
+      ON CONFLICT(e) DO UPDATE SET b='e';
+    SELECT a,b,c,d,e FROM t1;
+  } {1 a 3 4 5}
+  do_execsql_test 1.$tn.101 {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+    INSERT INTO t1(a,b,c,d,e) VALUES(91,NULL,3,4,5)
+      ON CONFLICT(a) DO UPDATE SET b='a'
+      ON CONFLICT(c) DO UPDATE SET b='c'
+      ON CONFLICT(d) DO UPDATE SET b='d'
+      ON CONFLICT(e) DO UPDATE SET b='e';
+    SELECT a,b,c,d,e FROM t1;
+  } {1 c 3 4 5}
+  do_execsql_test 1.$tn.102 {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+    INSERT INTO t1(a,b,c,d,e) VALUES(91,NULL,93,4,5)
+      ON CONFLICT(a) DO UPDATE SET b='a'
+      ON CONFLICT(c) DO UPDATE SET b='c'
+      ON CONFLICT(d) DO UPDATE SET b='d'
+      ON CONFLICT(e) DO UPDATE SET b='e';
+    SELECT a,b,c,d,e FROM t1;
+  } {1 d 3 4 5}
+  do_execsql_test 1.$tn.103 {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+    INSERT INTO t1(a,b,c,d,e) VALUES(91,NULL,93,94,5)
+      ON CONFLICT(a) DO UPDATE SET b='a'
+      ON CONFLICT(c) DO UPDATE SET b='c'
+      ON CONFLICT(d) DO UPDATE SET b='d'
+      ON CONFLICT(e) DO UPDATE SET b='e';
+    SELECT a,b,c,d,e FROM t1;
+  } {1 e 3 4 5}
+  do_execsql_test 1.$tn.200 {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,NULL,93,94,95)
+      ON CONFLICT(c) DO UPDATE SET b='c'
+      ON CONFLICT(a) DO UPDATE SET b='a'
+      ON CONFLICT(d) DO UPDATE SET b='d'
+      ON CONFLICT(e) DO UPDATE SET b='e';
+    SELECT a,b,c,d,e FROM t1;
+  } {1 a 3 4 5}
+  do_execsql_test 1.$tn.201 {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,NULL,3,94,95)
+      ON CONFLICT(c) DO UPDATE SET b='c'
+      ON CONFLICT(a) DO UPDATE SET b='a'
+      ON CONFLICT(d) DO UPDATE SET b='d'
+      ON CONFLICT(e) DO UPDATE SET b='e';
+    SELECT a,b,c,d,e FROM t1;
+  } {1 c 3 4 5}
+  do_execsql_test 1.$tn.202 {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,NULL,3,4,5)
+      ON CONFLICT(c) DO UPDATE SET b='c'
+      ON CONFLICT(a) DO UPDATE SET b='a'
+      ON CONFLICT(d) DO UPDATE SET b='d'
+      ON CONFLICT(e) DO UPDATE SET b='e';
+    SELECT a,b,c,d,e FROM t1;
+  } {1 c 3 4 5}
+  do_execsql_test 1.$tn.203 {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,NULL,93,94,5)
+      ON CONFLICT(c) DO UPDATE SET b='c'
+      ON CONFLICT(a) DO UPDATE SET b='a'
+      ON CONFLICT(d) DO UPDATE SET b='d'
+      ON CONFLICT(e) DO UPDATE SET b='e';
+    SELECT a,b,c,d,e FROM t1;
+  } {1 a 3 4 5}
+  do_execsql_test 1.$tn.204 {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,NULL,93,4,95)
+      ON CONFLICT(c) DO UPDATE SET b='c'
+      ON CONFLICT(a) DO UPDATE SET b='a'
+      ON CONFLICT(d) DO UPDATE SET b='d'
+      ON CONFLICT(e) DO UPDATE SET b='e';
+    SELECT a,b,c,d,e FROM t1;
+  } {1 a 3 4 5}
+  do_execsql_test 1.$tn.210 {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,NULL,93,94,95)
+      ON CONFLICT(c) DO UPDATE SET b='c'
+      ON CONFLICT(d) DO UPDATE SET b='d'
+      ON CONFLICT(a) DO UPDATE SET b='a'
+      ON CONFLICT(e) DO UPDATE SET b='e';
+    SELECT a,b,c,d,e FROM t1;
+  } {1 a 3 4 5}
+  do_execsql_test 1.$tn.211 {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,NULL,93,4,95)
+      ON CONFLICT(c) DO UPDATE SET b='c'
+      ON CONFLICT(d) DO UPDATE SET b='d'
+      ON CONFLICT(a) DO UPDATE SET b='a'
+      ON CONFLICT(e) DO UPDATE SET b='e';
+    SELECT a,b,c,d,e FROM t1;
+  } {1 d 3 4 5}
+  do_execsql_test 1.$tn.212 {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,NULL,93,94,5)
+      ON CONFLICT(c) DO UPDATE SET b='c'
+      ON CONFLICT(d) DO UPDATE SET b='d'
+      ON CONFLICT(a) DO UPDATE SET b='a'
+      ON CONFLICT(e) DO UPDATE SET b='e';
+    SELECT a,b,c,d,e FROM t1;
+  } {1 a 3 4 5}
+  do_execsql_test 1.$tn.213 {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+    INSERT INTO t1(a,b,c,d,e) VALUES(91,NULL,93,94,5)
+      ON CONFLICT(c) DO UPDATE SET b='c'
+      ON CONFLICT(d) DO UPDATE SET b='d'
+      ON CONFLICT(a) DO UPDATE SET b='a'
+      ON CONFLICT(e) DO UPDATE SET b='e';
+    SELECT a,b,c,d,e FROM t1;
+  } {1 e 3 4 5}
+  do_execsql_test 1.$tn.214 {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+    INSERT INTO t1(a,b,c,d,e) VALUES(91,NULL,93,94,5)
+      ON CONFLICT(c) DO UPDATE SET b='c'
+      ON CONFLICT(d) DO UPDATE SET b='d'
+      ON CONFLICT(e) DO UPDATE SET b='e'
+      ON CONFLICT(a) DO UPDATE SET b='a';
+    SELECT a,b,c,d,e FROM t1;
+  } {1 e 3 4 5}
+  do_execsql_test 1.$tn.215 {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,NULL,93,94,5)
+      ON CONFLICT(c) DO UPDATE SET b='c'
+      ON CONFLICT(d) DO UPDATE SET b='d'
+      ON CONFLICT(e) DO UPDATE SET b='e'
+      ON CONFLICT(a) DO UPDATE SET b='a';
+    SELECT a,b,c,d,e FROM t1;
+  } {1 e 3 4 5}
+  do_execsql_test 1.$tn.216 {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,NULL,93,94,95)
+      ON CONFLICT(c) DO UPDATE SET b='c'
+      ON CONFLICT(d) DO UPDATE SET b='d'
+      ON CONFLICT(e) DO UPDATE SET b='e'
+      ON CONFLICT(a) DO UPDATE SET b='a';
+    SELECT a,b,c,d,e FROM t1;
+  } {1 a 3 4 5}
+
+  do_execsql_test 1.$tn.300 {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,NULL,93,94,95)
+      ON CONFLICT(c) DO UPDATE SET b='c'
+      ON CONFLICT(d) DO UPDATE SET b='d'
+      ON CONFLICT(a) DO UPDATE SET b='a1'
+      ON CONFLICT(a) DO UPDATE SET b='a2'
+      ON CONFLICT(a) DO UPDATE SET b='a3'
+      ON CONFLICT(a) DO UPDATE SET b='a4'
+      ON CONFLICT(a) DO UPDATE SET b='a5'
+      ON CONFLICT(e) DO UPDATE SET b='e';
+    SELECT a,b,c,d,e FROM t1;
+  } {1 a1 3 4 5}
+  do_execsql_test 1.$tn.301 {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+    INSERT INTO t1(a,b,c,d,e) VALUES(91,NULL,93,94,5)
+      ON CONFLICT(c) DO UPDATE SET b='c'
+      ON CONFLICT(d) DO UPDATE SET b='d'
+      ON CONFLICT(a) DO UPDATE SET b='a1'
+      ON CONFLICT(a) DO UPDATE SET b='a2'
+      ON CONFLICT(a) DO UPDATE SET b='a3'
+      ON CONFLICT(a) DO UPDATE SET b='a4'
+      ON CONFLICT(a) DO UPDATE SET b='a5'
+      ON CONFLICT(e) DO UPDATE SET b='e';
+    SELECT a,b,c,d,e FROM t1;
+  } {1 e 3 4 5}
+
+  do_execsql_test 1.$tn.400 {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,NULL,93,94,95)
+      ON CONFLICT(c) DO UPDATE SET b='c'
+      ON CONFLICT(d) DO UPDATE SET b='d'
+      ON CONFLICT DO UPDATE set b='x';
+    SELECT a,b,c,d,e FROM t1;
+  } {1 x 3 4 5}
+  do_execsql_test 1.$tn.401 {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+    INSERT INTO t1(a,b,c,d,e) VALUES(91,NULL,93,94,5)
+      ON CONFLICT(c) DO UPDATE SET b='c'
+      ON CONFLICT(d) DO UPDATE SET b='d'
+      ON CONFLICT DO UPDATE set b='x';
+    SELECT a,b,c,d,e FROM t1;
+  } {1 x 3 4 5}
+  do_execsql_test 1.$tn.402 {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,NULL,93,94,95)
+      ON CONFLICT(c) DO UPDATE SET b='c'
+      ON CONFLICT(d) DO UPDATE SET b='d'
+      ON CONFLICT DO UPDATE set b='x';
+    SELECT a,b,c,d,e FROM t1;
+  } {1 x 3 4 5}
+  do_execsql_test 1.$tn.403 {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+    INSERT INTO t1(a,b,c,d,e) VALUES(91,NULL,3,94,95)
+      ON CONFLICT(c) DO UPDATE SET b='c'
+      ON CONFLICT(d) DO UPDATE SET b='d'
+      ON CONFLICT DO UPDATE set b='x';
+    SELECT a,b,c,d,e FROM t1;
+  } {1 c 3 4 5}
+  do_execsql_test 1.$tn.404 {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+    INSERT INTO t1(a,b,c,d,e) VALUES(91,NULL,3,4,95)
+      ON CONFLICT(c) DO UPDATE SET b='c'
+      ON CONFLICT(d) DO UPDATE SET b='d'
+      ON CONFLICT DO UPDATE set b='x';
+    SELECT a,b,c,d,e FROM t1;
+  } {1 c 3 4 5}
+  do_execsql_test 1.$tn.405 {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,NULL,93,4,5)
+      ON CONFLICT(c) DO UPDATE SET b='c'
+      ON CONFLICT(d) DO UPDATE SET b='d'
+      ON CONFLICT DO UPDATE set b='x';
+    SELECT a,b,c,d,e FROM t1;
+  } {1 d 3 4 5}
+
+  do_execsql_test 1.$tn.410 {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,NULL,93,94,95)
+      ON CONFLICT DO UPDATE set b='x';
+    SELECT a,b,c,d,e FROM t1;
+  } {1 x 3 4 5}
+  do_execsql_test 1.$tn.411 {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+    INSERT INTO t1(a,b,c,d,e) VALUES(91,NULL,93,94,5)
+      ON CONFLICT DO UPDATE set b='x';
+    SELECT a,b,c,d,e FROM t1;
+  } {1 x 3 4 5}
+  do_execsql_test 1.$tn.412 {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+    INSERT INTO t1(a,b,c,d,e) VALUES(91,NULL,93,4,95)
+      ON CONFLICT DO UPDATE set b='x';
+    SELECT a,b,c,d,e FROM t1;
+  } {1 x 3 4 5}
+  do_execsql_test 1.$tn.413 {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+    INSERT INTO t1(a,b,c,d,e) VALUES(91,NULL,3,94,95)
+      ON CONFLICT DO UPDATE set b='x';
+    SELECT a,b,c,d,e FROM t1;
+  } {1 x 3 4 5}
+
+  do_execsql_test 1.$tn.420 {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,NULL,93,94,95)
+      ON CONFLICT(c) DO NOTHING
+      ON CONFLICT(d) DO NOTHING
+      ON CONFLICT DO UPDATE set b='x';
+    SELECT a,b,c,d,e FROM t1;
+  } {1 x 3 4 5}
+  do_execsql_test 1.$tn.421 {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+    INSERT INTO t1(a,b,c,d,e) VALUES(91,NULL,93,94,5)
+      ON CONFLICT(c) DO NOTHING
+      ON CONFLICT(d) DO NOTHING
+      ON CONFLICT DO UPDATE set b='x';
+    SELECT a,b,c,d,e FROM t1;
+  } {1 x 3 4 5}
+  do_execsql_test 1.$tn.422 {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+    INSERT INTO t1(a,b,c,d,e) VALUES(91,NULL,93,4,95)
+      ON CONFLICT(c) DO NOTHING
+      ON CONFLICT(d) DO NOTHING
+      ON CONFLICT DO UPDATE set b='x';
+    SELECT a,b,c,d,e FROM t1;
+  } {1 2 3 4 5}
+  do_execsql_test 1.$tn.423 {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+    INSERT INTO t1(a,b,c,d,e) VALUES(91,NULL,3,94,95)
+      ON CONFLICT(c) DO NOTHING
+      ON CONFLICT(d) DO NOTHING
+      ON CONFLICT DO UPDATE set b='x';
+    SELECT a,b,c,d,e FROM t1;
+  } {1 2 3 4 5}
+
+  do_execsql_test 1.$tn.500 {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,NULL,93,94,95)
+      ON CONFLICT(c) DO UPDATE SET b='c'
+      ON CONFLICT(d) DO UPDATE SET b='d'
+      ON CONFLICT DO NOTHING;
+    SELECT a,b,c,d,e FROM t1;
+  } {1 2 3 4 5}
+  do_execsql_test 1.$tn.501 {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+    INSERT INTO t1(a,b,c,d,e) VALUES(91,NULL,93,94,5)
+      ON CONFLICT(c) DO UPDATE SET b='c'
+      ON CONFLICT(d) DO UPDATE SET b='d'
+      ON CONFLICT DO NOTHING;
+    SELECT a,b,c,d,e FROM t1;
+  } {1 2 3 4 5}
+  do_execsql_test 1.$tn.502 {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,NULL,93,94,95)
+      ON CONFLICT(c) DO UPDATE SET b='c'
+      ON CONFLICT(d) DO UPDATE SET b='d'
+      ON CONFLICT DO NOTHING;
+    SELECT a,b,c,d,e FROM t1;
+  } {1 2 3 4 5}
+  do_execsql_test 1.$tn.503 {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+    INSERT INTO t1(a,b,c,d,e) VALUES(91,NULL,3,94,95)
+      ON CONFLICT(c) DO UPDATE SET b='c'
+      ON CONFLICT(d) DO UPDATE SET b='d'
+      ON CONFLICT DO NOTHING;
+    SELECT a,b,c,d,e FROM t1;
+  } {1 c 3 4 5}
+  do_execsql_test 1.$tn.504 {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+    INSERT INTO t1(a,b,c,d,e) VALUES(91,NULL,3,4,95)
+      ON CONFLICT(c) DO UPDATE SET b='c'
+      ON CONFLICT(d) DO UPDATE SET b='d'
+      ON CONFLICT DO NOTHING;
+    SELECT a,b,c,d,e FROM t1;
+  } {1 c 3 4 5}
+  do_execsql_test 1.$tn.505 {
+    DELETE FROM t1;
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,2,3,4,5);
+    INSERT INTO t1(a,b,c,d,e) VALUES(1,NULL,93,4,5)
+      ON CONFLICT(c) DO UPDATE SET b='c'
+      ON CONFLICT(d) DO UPDATE SET b='d'
+      ON CONFLICT DO NOTHING;
+    SELECT a,b,c,d,e FROM t1;
+  } {1 d 3 4 5}
+
+}
+
+#--------------------------------------------------------------------------
+reset_db
+do_execsql_test 2.0 {
+  CREATE TABLE t2(a, b, c REAL, d, e, PRIMARY KEY(a,b)) WITHOUT ROWID;
+  CREATE UNIQUE INDEX t2c ON t2(c);
+}
+
+do_catchsql_test 2.1 {
+  INSERT INTO t2(a,b,c,e,d) VALUES(1,2,3,4,5)
+      ON CONFLICT(c) DO UPDATE SET b=''
+      ON CONFLICT((SELECT t2 FROM nosuchtable)) DO NOTHING;
+
+} {1 {no such table: nosuchtable}}
+
+# 2024-03-08 https://sqlite.org/forum/forumpost/919c6579c8
+# A redundant ON CONFLICT clause in an upsert can lead to
+# index corruption.
+#
+reset_db
+do_execsql_test 3.0 {
+  CREATE TABLE t1(aa INTEGER PRIMARY KEY, bb INT);
+  INSERT INTO t1 VALUES(11,22);
+  CREATE UNIQUE INDEX t1bb ON t1(bb);
+  REPLACE INTO t1 VALUES(11,33)
+    ON CONFLICT(bb) DO UPDATE SET aa = 44
+    ON CONFLICT(bb) DO UPDATE SET aa = 44;
+  PRAGMA integrity_check;
+} {ok}
+do_execsql_test 3.1 {
+  SELECT * FROM t1 NOT INDEXED;
+} {11 33}
+do_execsql_test 3.2 {
+  SELECT * FROM t1 INDEXED BY t1bb;
+} {11 33}
+do_execsql_test 3.3 {
+  DROP TABLE t1;
+  CREATE TABLE t1(aa INTEGER PRIMARY KEY, bb INT, cc INT);
+  INSERT INTO t1 VALUES(10,21,32),(11,22,33),(12,23,34);
+  CREATE UNIQUE INDEX t1bb ON t1(bb);
+  CREATE UNIQUE INDEX t1cc ON t1(cc);
+  REPLACE INTO t1 VALUES(11,44,55)
+    ON CONFLICT(bb) DO UPDATE SET aa = 99
+    ON CONFLICT(cc) DO UPDATE SET aa = 99
+    ON CONFLICT(bb) DO UPDATE SET aa = 99;
+  PRAGMA integrity_check;
+} {ok}
+do_execsql_test 3.4 {
+  SELECT * FROM t1 NOT INDEXED ORDER BY +aa;
+} {10 21 32 11 44 55 12 23 34}
+do_execsql_test 3.5 {
+  SELECT * FROM t1 INDEXED BY t1bb ORDER BY +aa;
+} {10 21 32 11 44 55 12 23 34}
+do_execsql_test 3.6 {
+  SELECT * FROM t1 INDEXED BY t1cc ORDER BY +aa;
+} {10 21 32 11 44 55 12 23 34}
+
+finish_test
diff --git a/test/upsertfault.test b/test/upsertfault.test
new file mode 100644
index 0000000000000000000000000000000000000000..52bb4a5e35242d09f35f219e59e77ea067fb6f90
--- /dev/null
+++ b/test/upsertfault.test
@@ -0,0 +1,38 @@
+# 2018-04-17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test cases for UPSERT
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix upsertfault
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a PRIMARY KEY, b, c, d, UNIQUE(b, c));
+  INSERT INTO t1 VALUES(1, 1, 1, 1);
+  INSERT INTO t1 VALUES(2, 2, 2, 2);
+}
+faultsim_save_and_close
+
+do_faultsim_test 1 -faults oom* -prep {
+  faultsim_restore_and_reopen
+  db eval { SELECT * FROM sqlite_master } 
+} -body {
+  execsql {
+     INSERT INTO t1 VALUES(3, 2, 2, NULL) ON CONFLICT(b, c) DO
+       UPDATE SET d=d+1;
+  }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+
+finish_test
diff --git a/test/uri.test b/test/uri.test
new file mode 100644
index 0000000000000000000000000000000000000000..2b388c40073aac10cdcce4336ebbc265a667663c
--- /dev/null
+++ b/test/uri.test
@@ -0,0 +1,345 @@
+# 2011 April 22
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Test organization:
+#
+#   1.*: That file names are correctly extracted from URIs.
+#   2.*: That URI options (query parameters) are correctly extracted from URIs.
+#   3.*: That specifying an unknown VFS causes an error.
+#   4.*: Tests for specifying other options (other than "vfs").
+#   5.*: Test using a different VFS with an attached database.
+#   6.*: Test that authorities other than "" and localhost cause errors.
+#   7.*: Test that a read-write db can be attached to a read-only connection.
+#
+
+set testprefix uri
+db close
+sqlite3_shutdown
+sqlite3_config_uri 1
+
+#-------------------------------------------------------------------------
+# Test that file names are correctly extracted from URIs.
+#
+foreach {tn uri file} {
+  1      test.db                              test.db
+  2      file:test.db                         test.db
+  3      file://PWD/test.db                   test.db
+  4      file:PWD/test.db                     test.db
+  5      file:test.db?mork=1                  test.db
+  6      file:test.db?mork=1&tonglor=2        test.db
+  7      file:test.db?mork=1#boris            test.db
+  8      file:test.db#boris                   test.db
+  9      test.db#boris                        test.db#boris
+  10     file:test%2Edb                       test.db
+  11     file                                 file
+  12     http:test.db                         http:test.db
+  13     file:test.db%00extra                 test.db
+  14     file:testdb%00.db%00extra            testdb
+
+  15     test.db?mork=1#boris                 test.db?mork=1#boris
+  16     file://localhostPWD/test.db%3Fhello  test.db?hello
+} {
+  
+
+  ifcapable !curdir { if {$tn==3} break }
+
+  ifcapable uri_00_error {
+    if {[string first %00 $uri]>=0} continue
+  }
+
+  if {$tcl_platform(platform)=="windows"} {
+    #
+    # NOTE: Due to limits on legal characters for file names imposed by
+    #       Windows, we must skip the final two tests here (i.e. the
+    #       question mark is illegal in a file name on Windows).
+    #
+    if {$tn>14} break
+
+    #
+    # NOTE: When running on Tcl 8.6 (or higher?) on Windows, a colon within
+    #       the file name no longer tries to access an alternate data stream
+    #       (ADS) named "test.db" for the "http" file, causing some spurious
+    #       failures of this test.
+    #
+    if {$tn==12 && $::tcl_version>=8.6} continue
+
+    #
+    # NOTE: On Windows, we need to account for the fact that the current
+    #       directory does not start with a forward slash.
+    #
+    set uri  [string map [list PWD/ /[test_pwd /]] $uri]
+  } else {
+    set uri  [string map [list PWD/ [test_pwd /]] $uri]
+  }
+
+  if {[file isdir $file]} {error "$file is a directory"}
+  forcedelete $file
+  do_test 1.$tn.1 { file exists $file } 0
+  set DB [sqlite3_open $uri]
+  do_test 1.$tn.2 { file exists $file } 1
+  sqlite3_close $DB
+  forcedelete $file
+
+  do_test 1.$tn.3 { file exists $file } 0
+  sqlite3 db xxx.db
+  catchsql { ATTACH $uri AS aux }
+  do_test 1.$tn.4 { file exists $file } 1
+  db close
+}
+
+#-------------------------------------------------------------------------
+# Test that URI query parameters are passed through to the VFS layer
+# correctly.
+#
+testvfs tvfs2
+testvfs tvfs -default 1
+tvfs filter xOpen
+tvfs script open_method
+proc open_method {method file arglist} {
+  set ::arglist $arglist
+}
+foreach {tn uri kvlist} {
+  1      file:test.db?hello=world                     {hello world}
+  2      file:test.db?hello&world                     {hello {} world {}}
+  3      file:test.db?hello=1&world=2&vfs=tvfs        {hello 1 world 2 vfs tvfs}
+  4      file:test.db?hello=1&world=2&vfs=tvfs2        {}
+  5      file:test.db?%68%65%6C%6C%6F=%77%6F%72%6C%64 {hello world}
+  6      file:testdb%00.db?hello%00extra=world%00ex   {hello world}
+  7      file:testdb%00.db?hello%00=world%00          {hello world}
+  8      file:testdb%00.db?=world&xyz=abc             {xyz abc}
+  9      file:test.db?%00hello=world&xyz=abc          {xyz abc}
+  10     file:test.db?hello=%00world&xyz=             {hello {} xyz {}}
+  11     file:test.db?=#ravada                        {}
+  12     file:test.db?&&&&&&&&hello=world&&&&&&&      {hello world}
+
+  13     test.db?&&&&&&&&hello=world&&&&&&&           {}
+  14     http:test.db?hello&world                     {}
+} {
+
+  ifcapable uri_00_error {
+    if {[string first %00 $uri]>=0} continue
+  }
+
+  if {$tcl_platform(platform) == "windows" && $tn>12} {
+    continue
+  }
+
+  set ::arglist ""
+  set DB [sqlite3_open $uri]
+  do_test 2.$tn.1 { set ::arglist } $kvlist
+  sqlite3_close $DB
+
+  sqlite3 db xxx.db
+  set ::arglist ""
+  execsql { ATTACH $uri AS aux }
+  do_test 2.$tn.2 { set ::arglist } $kvlist
+  db close
+}
+tvfs delete
+tvfs2 delete
+
+#-------------------------------------------------------------------------
+# Test that specifying a non-existent VFS raises an error.
+#
+do_test 3.1 {
+  list [catch { sqlite3 db "file:test.db?vfs=nosuchvfs" } msg] $msg
+} {1 {no such vfs: nosuchvfs}}
+
+#-------------------------------------------------------------------------
+# Test some of the other options (other than "vfs").
+#
+foreach {tn mode create_ok write_ok readonly_ok} {
+  1    ro    0   0   1
+  2    rw    0   1   0
+  3    rwc   1   1   0
+} {
+  catch { db close }
+  forcedelete test.db
+
+  set A(1) {0 {}}
+  set A(0) {1 {unable to open database file}}
+  do_test 4.1.$tn.1 {
+    list [catch {sqlite3 db "file:test.db?mode=$mode"} msg] $msg
+  } $A($create_ok)
+
+  catch { db close }
+  forcedelete test.db
+  sqlite3 db test.db
+  db eval { CREATE TABLE t1(a, b) }
+  db close
+
+  set A(1) {0 {}}
+  set A(0) {1 {attempt to write a readonly database}}
+  do_test 4.1.$tn.2 {
+    sqlite3 db "file:test.db?mode=$mode"
+    catchsql { INSERT INTO t1 VALUES(1, 2) }
+  } $A($write_ok)
+
+  set A(1) {0 {}}
+  set A(0) [list 1 "access mode not allowed: $mode"]
+  do_test 4.1.$tn.3 {
+    list [catch {sqlite3 db "file:test.db?mode=$mode" -readonly 1} msg] $msg
+  } $A($readonly_ok)
+}
+
+ifcapable shared_cache {
+set orig [sqlite3_enable_shared_cache]
+foreach {tn options sc_default is_shared} {
+  1    ""                1   1
+  2    "cache=private"   1   0
+  3    "cache=shared"    1   1
+  4    ""                0   0
+  5    "cache=private"   0   0
+  6    "cache=shared"    0   1
+} {
+  catch { db close }
+  forcedelete test.db
+
+  sqlite3_enable_shared_cache 1
+  sqlite3 db2 test.db
+  db2 eval {CREATE TABLE t1(a, b)}
+
+  sqlite3_enable_shared_cache $sc_default
+  sqlite3 db "file:test.db?$options"
+  db eval {SELECT * FROM t1}
+
+  set A(1) {1 {database table is locked: t1}}
+  set A(0) {0 {}}
+  do_test 4.2.$tn {
+    db2 eval {BEGIN; INSERT INTO t1 VALUES(1, 2);}
+    catchsql { SELECT * FROM t1 }
+  } $A($is_shared)
+
+  db2 close
+}
+} ;# end ifcapable shared_cache
+
+do_test 4.3.1 {
+  list [catch {sqlite3 db "file:test.db?mode=rc"} msg] $msg
+} {1 {no such access mode: rc}}
+do_test 4.3.2 {
+  list [catch {sqlite3 db "file:test.db?cache=public"} msg] $msg
+} {1 {no such cache mode: public}}
+
+#-------------------------------------------------------------------------
+# Test that things work if an ATTACHed database uses a different VFS than
+# the main database. The important point is that for all operations 
+# involving the ATTACHed database, the correct versions of the following
+# VFS are used for all operations involving the attached database.
+#
+#     xOpen
+#     xDelete
+#     xAccess
+#     xFullPathname
+#
+
+# This block of code creates two VFS - "tvfs1" and "tvfs2". Each time one
+# of the above methods is called using "tvfs1", global variable ::T1(X) is
+# set, where X is the file-name the method is called on. Calls to the above
+# methods using "tvfs2" set entries in the global T2 array.
+#
+ifcapable wal {
+  testvfs tvfs1 
+  tvfs1 filter {xOpen xDelete xAccess xFullPathname}
+  tvfs1 script tvfs1_callback
+  proc tvfs1_callback {method filename args} { 
+    set ::T1([file tail $filename]) 1 
+    return SQLITE_OK
+  }
+  testvfs tvfs2 
+  tvfs2 filter {xOpen xDelete xAccess xFullPathname}
+  tvfs2 script tvfs2_callback
+  proc tvfs2_callback {method filename args} { 
+    set ::T2([file tail $filename]) 1 
+    return SQLITE_OK
+  }
+  
+  catch {db close}
+  eval forcedelete [glob test.db*]
+  do_test 5.1.1 {
+    sqlite3 db file:test.db1?vfs=tvfs1
+    execsql {
+      ATTACH 'file:test.db2?vfs=tvfs2' AS aux;
+      PRAGMA main.journal_mode = PERSIST;
+      PRAGMA aux.journal_mode = PERSIST;
+      CREATE TABLE t1(a, b);
+      CREATE TABLE aux.t2(a, b);
+      PRAGMA main.journal_mode = WAL;
+      PRAGMA aux.journal_mode = WAL;
+      INSERT INTO t1 VALUES('x', 'y');
+      INSERT INTO t2 VALUES('x', 'y');
+    }
+    lsort [array names ::T1]
+  } {test.db1 test.db1-journal test.db1-wal}
+  
+  do_test 5.1.2 {
+    lsort [array names ::T2]
+  } {test.db2 test.db2-journal test.db2-wal}
+  db close
+  
+  tvfs1 delete
+  tvfs2 delete
+}
+
+#-------------------------------------------------------------------------
+# Check that only "" and "localhost" are acceptable as authorities.
+#
+catch {db close}
+foreach {tn uri res} {
+  1     "file://localhost/PWD/test.db"   {not an error}
+  2     "file:///PWD/test.db"            {not an error}
+  3     "file:/PWD/test.db"              {not an error}
+  4     "file://l%6Fcalhost/PWD/test.db" {invalid uri authority: l%6Fcalhost}
+  5     "file://lbcalhost/PWD/test.db"   {invalid uri authority: lbcalhost}
+  6     "file://x/PWD/test.db"           {invalid uri authority: x}
+} {
+
+  if {$tcl_platform(platform)=="windows"} {
+    set uri  [string map [list PWD [string range [get_pwd] 3 end]] $uri]
+  } else {
+    set uri  [string map [list PWD [string range [get_pwd] 1 end]] $uri]
+  }
+
+  do_test 6.$tn {
+    set DB [sqlite3_open $uri]
+    sqlite3_errmsg $DB
+  } $res
+  catch { sqlite3_close $DB }
+}
+
+forcedelete test.db test.db2
+do_test 7.1 {
+  sqlite3 db test.db
+  execsql {
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, 2);
+    ATTACH 'test.db2' AS aux;
+    CREATE TABLE aux.t2(a, b);
+    INSERT INTO t1 VALUES('a', 'b');
+  }
+  db close
+} {}
+do_test 7.2 {
+  sqlite3 db file:test.db?mode=ro
+  execsql { ATTACH 'file:test.db2?mode=rw' AS aux }
+} {}
+do_execsql_test  7.3 { 
+  INSERT INTO t2 VALUES('c', 'd') 
+} {}
+do_catchsql_test 7.4 { 
+  INSERT INTO t1 VALUES(3, 4) 
+} {1 {attempt to write a readonly database}}
+
+finish_test
diff --git a/test/uri2.test b/test/uri2.test
new file mode 100644
index 0000000000000000000000000000000000000000..52feb7b50ffcbf9b44a831a6161c66333bddf979
--- /dev/null
+++ b/test/uri2.test
@@ -0,0 +1,63 @@
+# 2016 October 26
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Tests for SQLITE_ENABLE_URI_00_ERROR builds.
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !uri_00_error {
+  finish_test
+  return
+}
+
+set testprefix uri2
+db close
+sqlite3_shutdown
+sqlite3_config_uri 1
+
+foreach {tn uri} {
+  1 file:test.db%00trailing
+  2 file:test.db?%00trailing=1
+  3 file:test.db?trailing=1%00
+  4 file:test.db?trailing=1&abc%00def
+  5 file:test.db?trailing=1&abc%00def
+} {
+  do_test 1.$tn.1 {
+    set rc [catch { sqlite3 db $uri } msg]
+    list $rc $msg
+  } {1 {unexpected %00 in uri}}
+
+  do_test 1.$tn.2 {
+    set DB2 [sqlite3_open $uri]
+    sqlite3_errcode $DB2
+  } {SQLITE_ERROR}
+
+  catch { sqlite3_close $DB2 }
+
+  do_test 1.$tn.2 {
+    sqlite3 db ""
+    catchsql { ATTACH $uri AS aux }
+  } {1 {unexpected %00 in uri}}
+
+  do_test 1.$tn.3 {
+    sqlite3_errcode db
+  } {SQLITE_ERROR}
+
+  catch { db close }
+}
+
+reset_db
+do_test 2.0 {
+  expr {[lsearch [execsql {PRAGMA compile_options}] ENABLE_URI_00_ERROR] >= 0}
+} 1
+
+finish_test
diff --git a/test/utf16align.test b/test/utf16align.test
new file mode 100644
index 0000000000000000000000000000000000000000..ef10bc659db5b773887967c6fd38cc4efd2b6126
--- /dev/null
+++ b/test/utf16align.test
@@ -0,0 +1,96 @@
+# 2006 February 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+# This file contains code to verify that the SQLITE_UTF16_ALIGNED
+# flag passed into the sqlite3_create_collation() function insures
+# that all strings passed to that function are aligned on an even
+# byte boundary.
+#
+# $Id: utf16align.test,v 1.2 2008/11/07 03:29:34 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Skip this entire test if we do not support UTF16
+#
+ifcapable !utf16 {
+  finish_test
+  return
+}
+
+# Create a database with a UTF16 encoding.  Put in lots of string
+# data of varying lengths.
+#
+do_test utf16align-1.0 {
+  set unaligned_string_counter 0
+  add_alignment_test_collations [sqlite3_connection_pointer db]
+  sqlite3_db_config db SQLITE_DBCONFIG_DQS_DML 1
+  execsql {
+    PRAGMA encoding=UTF16;
+    CREATE TABLE t1(
+      id INTEGER PRIMARY KEY,
+      spacer TEXT,
+      a TEXT COLLATE utf16_aligned,
+      b TEXT COLLATE utf16_unaligned
+    );
+    INSERT INTO t1(a) VALUES("abc");
+    INSERT INTO t1(a) VALUES("defghi");
+    INSERT INTO t1(a) VALUES("jklmnopqrstuv");
+    INSERT INTO t1(a) VALUES("wxyz0123456789-");
+    UPDATE t1 SET b=a||'-'||a;
+    INSERT INTO t1(a,b) SELECT a||b, b||a FROM t1;
+    INSERT INTO t1(a,b) SELECT a||b, b||a FROM t1;
+    INSERT INTO t1(a,b) SELECT a||b, b||a FROM t1;
+    INSERT INTO t1(a,b) VALUES('one','two');
+    INSERT INTO t1(a,b) SELECT a, b FROM t1;
+    UPDATE t1 SET spacer = CASE WHEN rowid&1 THEN 'x' ELSE 'xx' END;
+    SELECT count(*) FROM t1;
+  }
+} 66
+do_test utf16align-1.1 {
+  set unaligned_string_counter
+} 0
+
+# Creating an index that uses the unaligned collation.  We should see
+# some unaligned strings passed to the collating function.
+#
+do_test utf16align-1.2 {
+  execsql {
+    CREATE INDEX t1i1 ON t1(spacer, b);
+  }
+  # puts $unaligned_string_counter
+  expr {$unaligned_string_counter>0}
+} 1
+
+# Create another index that uses the aligned collation.  This time
+# there should be no unaligned accesses
+#
+do_test utf16align-1.3 {
+  set unaligned_string_counter 0
+  execsql {
+    CREATE INDEX t1i2 ON t1(spacer, a);
+  }
+  expr {$unaligned_string_counter>0}
+} 0
+integrity_check utf16align-1.4
+
+# ticket #3482
+#
+db close
+sqlite3 db :memory:
+do_test utf16align-2.1 {
+  db eval {
+    PRAGMA encoding=UTF16be;
+    SELECT hex(ltrim(x'6efcda'));
+  }
+} {6EFC}
+
+finish_test
diff --git a/test/vacuum-into.test b/test/vacuum-into.test
new file mode 100644
index 0000000000000000000000000000000000000000..d559b7fb398f86aee952af1b58b8a3fc73abb207
--- /dev/null
+++ b/test/vacuum-into.test
@@ -0,0 +1,220 @@
+# 2018-12-07
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the VACUUM INTO statement.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If the VACUUM statement is disabled in the current build, skip all
+# the tests in this file.
+#
+ifcapable {!vacuum} {
+  omit_test vacuum.test {Compiled with SQLITE_OMIT_VACUUM}
+  finish_test
+  return
+}
+
+forcedelete out.db
+do_execsql_test vacuum-into-100 {
+  CREATE TABLE t1(
+    a INTEGER PRIMARY KEY,
+    b ANY,
+    c INT AS (b+1),                          --- See "2024-04-09" block
+    CHECK( typeof(b)!='integer' OR b>a-5 )   --- comment below
+  );
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<100)
+  INSERT INTO t1(a,b) SELECT x, randomblob(600) FROM c;
+  CREATE INDEX t1b ON t1(b);
+  DELETE FROM t1 WHERE a%2;
+  SELECT count(*), sum(a), sum(length(b)) FROM t1;
+} {50 2550 30000}
+
+# Update 2024-04-09 for forum post eec177d68fe7fa2c.
+#
+# VACUUM INTO is sensitive to tables holding both generated columns
+# and CHECK constraints.  
+#
+# CHECK constraints are ignored for read-only databases in order to save
+# memory (see check-in 34ddf02d3d21151b on 2014-05-21).  But the xfer
+# optimization normally only works if CHECK constraints match between the
+# source and destination tables.  So the xfer optimization was not
+# working for VACUUM INTO when the source was a read-only database and the
+# table held CHECK constraints.  But if the table has generated columns,
+# then the xfer optimization is required or else VACUUM will raise an
+# error.
+#
+# Fix this by ignoring CHECK constraints when determining whether or not
+# the xfer optimization can run while doing VACUUM.
+
+do_execsql_test vacuum-into-110 {
+  VACUUM main INTO 'out.db';
+} {}
+sqlite3 db2 out.db
+do_test vacuum-into-120 {
+  db2 eval {SELECT count(*), sum(a), sum(length(b)) FROM t1}
+} {50 2550 30000}
+do_catchsql_test vacuum-into-130 {
+  VACUUM INTO 'out.db';
+} {1 {output file already exists}}
+forcedelete out2.db
+do_catchsql_test vacuum-into-140 {
+  VACUUM INTO 'out2.db';
+} {0 {}}
+do_catchsql_test vacuum-into-150 {
+  VACUUM INTO 'out2.db';
+} {1 {output file already exists}}
+
+do_catchsql_test vacuum-into-200 {
+  VACUUM main INTO ':memory:';
+} {0 {}}
+
+# The INTO argument can be an arbitrary expression.
+#
+do_execsql_test vacuum-into-300 {
+  CREATE TABLE t2(name TEXT);
+  INSERT INTO t2 VALUES(':memory:');
+  VACUUM main INTO (SELECT name FROM t2);
+} {}
+do_catchsql_test vacuum-into-310 {
+  VACUUM INTO null;
+} {1 {non-text filename}}
+do_catchsql_test vacuum-into-320 {
+  VACUUM INTO x;
+} {1 {no such column: x}}
+do_catchsql_test vacuum-into-330 {
+  VACUUM INTO t1.nosuchcol;
+} {1 {no such column: t1.nosuchcol}}
+do_catchsql_test vacuum-into-340 {
+  VACUUM INTO main.t1.nosuchcol;
+} {1 {no such column: main.t1.nosuchcol}}
+
+forcedelete test.db2
+db func target target
+proc target {} { return "test.db2" }
+do_test vacuum-into-410 {
+  execsql { VACUUM INTO target() }
+  file exists test.db2
+} 1
+do_catchsql_test vacuum-into-420 {
+  VACUUM INTO target2()
+} {1 {no such function: target2}}
+
+# The ability to VACUUM INTO a read-only database
+db close
+if {$tcl_platform(platform)=="windows"} {
+  file attributes test.db -readonly 1
+} else {
+  file attributes test.db -permissions 292  ;# 292 == 0444
+}
+sqlite3 db test.db -readonly 1
+forcedelete test.db2
+do_execsql_test vacuum-into-500 {
+  VACUUM INTO 'test.db2';
+}
+if {$tcl_platform(platform)=="windows"} {
+  file attributes test.db -readonly 0
+} else {
+  file attributes test.db -permissions 420   ;# 420 = 0644
+}
+sqlite3 db2 test.db2
+do_test vacuum-into-510 {
+  db2 eval {SELECT name FROM sqlite_master ORDER BY 1}
+} {t1 t1b t2}
+db2 close
+db close
+
+# Change the page-size on a VACUUM INTO even if the original
+# database is in WAL mode.
+#
+if {[wal_is_capable]} {
+  forcedelete test.db
+  forcedelete test.db2
+  do_test vacuum-into-600 {
+    sqlite3 db test.db
+    db eval {
+      PRAGMA page_size=4096;
+      PRAGMA journal_mode=WAL;
+      CREATE TABLE t1(a);
+      INSERT INTO t1 VALUES(19);
+      CREATE INDEX t1a ON t1(a);
+      PRAGMA integrity_check;
+    }
+  } {wal ok}
+  do_execsql_test vacuum-into-610 {
+    PRAGMA page_size;
+  } {4096}
+  do_execsql_test vacuum-into-620 {
+    PRAGMA page_size=1024;
+    VACUUM INTO 'test.db2';
+  } {}
+  do_test vacuum-into-630 {
+    sqlite3 db test.db2
+    db eval {
+      PRAGMA page_size;
+      PRAGMA integrity_check;
+    }
+  } {1024 ok}
+}
+
+#-------------------------------------------------------------------------
+
+testvfs tvfs -default 1
+tvfs filter xSync
+tvfs script xSyncCb
+proc xSyncCb {method file fileid flags} {
+  incr ::sync($flags)
+}
+
+reset_db
+
+do_execsql_test vacuum-into-700 {
+  CREATE TABLE t1(a, b);
+  INSERT INTO t1 VALUES(1, 2);
+}
+
+foreach {tn pragma res} {
+  710 {
+    PRAGMA synchronous = normal
+  } {normal 2}
+  720 {
+    PRAGMA synchronous = full
+  } {normal 3}
+  730 {
+    PRAGMA synchronous = off
+  } {}
+  740 {
+    PRAGMA synchronous = extra;
+  } {normal 3}
+  750 {
+    PRAGMA fullfsync = 1;
+    PRAGMA synchronous = full;
+  } {full|dataonly 1 full 2}
+} {
+
+  forcedelete test.db2
+  array unset ::sync
+  do_execsql_test vacuum-into-$tn.1 "
+    $pragma ;
+    VACUUM INTO 'test.db2'
+  "
+
+  do_test vacuum-into-$tn.2 {
+    array get ::sync
+  } $res
+}
+
+db close
+tvfs delete
+
+
+finish_test
diff --git a/test/vacuum.test b/test/vacuum.test
new file mode 100644
index 0000000000000000000000000000000000000000..57429c29ea5f867d6e63c6272d3c05e15bd4cf14
--- /dev/null
+++ b/test/vacuum.test
@@ -0,0 +1,404 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the VACUUM statement.
+#
+# $Id: vacuum.test,v 1.43 2009/01/31 14:54:07 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If the VACUUM statement is disabled in the current build, skip all
+# the tests in this file.
+#
+ifcapable {!vacuum} {
+  omit_test vacuum.test {Compiled with SQLITE_OMIT_VACUUM}
+  finish_test
+  return
+}
+if $AUTOVACUUM {
+  omit_test vacuum.test {Auto-vacuum is enabled}
+  finish_test
+  return
+}
+
+set fcnt 1
+do_test vacuum-1.1 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+    INSERT INTO t1 VALUES(NULL,randstr(10,100),randstr(5,50));
+    INSERT INTO t1 VALUES(123456,randstr(10,100),randstr(5,50));
+    INSERT INTO t1 SELECT NULL, b||'-'||rowid, c||'-'||rowid FROM t1;
+    INSERT INTO t1 SELECT NULL, b||'-'||rowid, c||'-'||rowid FROM t1;
+    INSERT INTO t1 SELECT NULL, b||'-'||rowid, c||'-'||rowid FROM t1;
+    INSERT INTO t1 SELECT NULL, b||'-'||rowid, c||'-'||rowid FROM t1;
+    INSERT INTO t1 SELECT NULL, b||'-'||rowid, c||'-'||rowid FROM t1;
+    INSERT INTO t1 SELECT NULL, b||'-'||rowid, c||'-'||rowid FROM t1;
+    INSERT INTO t1 SELECT NULL, b||'-'||rowid, c||'-'||rowid FROM t1;
+    CREATE INDEX i1 ON t1(b,c);
+    CREATE UNIQUE INDEX i2 ON t1(c,a);
+    CREATE TABLE t2 AS SELECT * FROM t1;
+    COMMIT;
+    DROP TABLE t2;
+  }
+  set ::size1 [file size test.db]
+  set ::cksum [cksum]
+  expr {$::cksum!=""}
+} {1}
+
+# Create bogus application-defined functions for functions used 
+# internally by VACUUM, to ensure that VACUUM falls back
+# to the built-in functions.
+#
+proc failing_app_func {args} {error "bad function"}
+do_test vacuum-1.1b {
+  db func substr failing_app_func
+  db func like failing_app_func
+  db func quote failing_app_func
+  catchsql {SELECT substr(name,1,3) FROM sqlite_master}
+} {1 {bad function}}
+
+do_test vacuum-1.2 {
+  execsql {
+    VACUUM;
+  }
+  cksum
+} $cksum
+ifcapable vacuum {
+  do_test vacuum-1.3 {
+    expr {[file size test.db]<$::size1}
+  } {1}
+}
+do_test vacuum-1.4 {
+  set sql_script {
+    BEGIN;
+    CREATE TABLE t2 AS SELECT * FROM t1;
+    CREATE TABLE t3 AS SELECT * FROM t1;
+    CREATE VIEW v1 AS SELECT b, c FROM t3;
+    CREATE TRIGGER r1 AFTER DELETE ON t2 BEGIN SELECT 1; END;
+    COMMIT;
+    DROP TABLE t2;
+  }
+  # If the library was compiled to omit view support, comment out the
+  # create view in the script $sql_script before executing it. Similarly,
+  # if triggers are not supported, comment out the trigger definition.
+  ifcapable !view {
+    regsub {CREATE VIEW} $sql_script {-- CREATE VIEW} sql_script
+  }
+  ifcapable !trigger {
+    regsub {CREATE TRIGGER} $sql_script {-- CREATE TRIGGER} sql_script
+  }
+  execsql $sql_script
+  set ::size1 [file size test.db]
+  set ::cksum [cksum]
+  expr {$::cksum!=""}
+} {1}
+do_test vacuum-1.5 {
+  execsql {
+    VACUUM;
+  }
+  cksum
+} $cksum
+
+ifcapable vacuum {
+  do_test vacuum-1.6 {
+    expr {[file size test.db]<$::size1}
+  } {1}
+}
+ifcapable vacuum {
+  do_test vacuum-2.1.1 {
+    catchsql {
+      BEGIN;
+      VACUUM;
+    }
+  } {1 {cannot VACUUM from within a transaction}}
+  do_test vacuum-2.1.2 {
+    sqlite3_get_autocommit db
+  } {0}
+  do_test vacuum-2.1.3 {
+    db eval {COMMIT}
+  } {}
+}
+do_test vacuum-2.2 {
+  sqlite3 db2 test.db
+  execsql {
+    BEGIN;
+    CREATE TABLE t4 AS SELECT * FROM t1;
+    CREATE TABLE t5 AS SELECT * FROM t1;
+    COMMIT;
+    DROP TABLE t4;
+    DROP TABLE t5;
+  } db2
+  set ::cksum [cksum db2]
+  catchsql {
+    VACUUM
+  }
+} {0 {}}
+do_test vacuum-2.3 {
+  cksum
+} $cksum
+do_test vacuum-2.4 {
+  catch {db2 eval {SELECT count(*) FROM sqlite_master}}
+  cksum db2
+} $cksum
+
+# Make sure the schema cookie is incremented by vacuum.
+#
+do_test vacuum-2.5 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t6 AS SELECT * FROM t1;
+    CREATE TABLE t7 AS SELECT * FROM t1;
+    COMMIT;
+  }
+  sqlite3 db3 test.db
+  execsql {
+    -- The "SELECT * FROM sqlite_master" statement ensures that this test
+    -- works when shared-cache is enabled. If shared-cache is enabled, then
+    -- db3 shares a cache with db2 (but not db - it was opened as 
+    -- "./test.db").
+    SELECT * FROM sqlite_master;
+    SELECT * FROM t7 LIMIT 1
+  } db3
+  execsql {
+    VACUUM;
+  }
+  execsql {
+    INSERT INTO t7 VALUES(1234567890,'hello','world');
+  } db3
+  execsql {
+    SELECT * FROM t7 WHERE a=1234567890
+  }
+} {1234567890 hello world}
+integrity_check vacuum-2.6
+do_test vacuum-2.7 {
+  execsql {
+    SELECT * FROM t7 WHERE a=1234567890
+  } db3
+} {1234567890 hello world}
+do_test vacuum-2.8 {
+  execsql {
+    INSERT INTO t7 SELECT * FROM t6;
+    SELECT count(*) FROM t7;
+  }
+} 513
+integrity_check vacuum-2.9
+do_test vacuum-2.10 {
+  execsql {
+    DELETE FROM t7;
+    SELECT count(*) FROM t7;
+  } db3
+} 0
+integrity_check vacuum-2.11
+db3 close
+ 
+
+# Ticket #427.  Make sure VACUUM works when the EMPTY_RESULT_CALLBACKS
+# pragma is turned on.
+#
+do_test vacuum-3.1 {
+  db close
+  db2 close
+  delete_file test.db
+  sqlite3 db test.db
+  execsql {
+    PRAGMA empty_result_callbacks=on;
+    VACUUM;
+  }
+} {}
+
+# Ticket #464.  Make sure VACUUM works with the sqlite3_prepare() API.
+#
+do_test vacuum-4.1 {
+  db close
+  sqlite3 db test.db; set DB [sqlite3_connection_pointer db]
+  set VM [sqlite3_prepare $DB {VACUUM} -1 TAIL]
+  sqlite3_step $VM
+} {SQLITE_DONE}
+do_test vacuum-4.2 {
+  sqlite3_finalize $VM
+} SQLITE_OK
+
+# Ticket #515.  VACUUM after deleting and recreating the table that
+# a view refers to. Omit this test if the library is not view-enabled.
+#
+ifcapable view {
+do_test vacuum-5.1 {
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+  catchsql {
+    CREATE TABLE Test (TestID int primary key);
+    INSERT INTO Test VALUES (NULL);
+    CREATE VIEW viewTest AS SELECT * FROM Test;
+
+    BEGIN;
+    CREATE TABLE tempTest (TestID int primary key, Test2 int NULL);
+    INSERT INTO tempTest SELECT TestID, 1 FROM Test;
+    DROP TABLE Test;
+    CREATE TABLE Test(TestID int primary key, Test2 int NULL);
+    INSERT INTO Test SELECT * FROM tempTest;
+    DROP TABLE tempTest;
+    COMMIT;
+    VACUUM;
+  }
+} {0 {}}
+do_test vacuum-5.2 {
+  catchsql {
+    VACUUM;
+  }
+} {0 {}}
+} ;# ifcapable view
+
+# Ensure vacuum works with complicated tables names.
+do_test vacuum-6.1 {
+  execsql {
+    CREATE TABLE "abc abc"(a, b, c);
+    INSERT INTO "abc abc" VALUES(1, 2, 3);
+    VACUUM;
+  }
+} {}
+do_test vacuum-6.2 {
+  execsql {
+    select * from "abc abc";
+  }
+} {1 2 3}
+
+# Also ensure that blobs survive a vacuum.
+ifcapable {bloblit} {
+  do_test vacuum-6.3 {
+    execsql {
+      DELETE FROM "abc abc";
+      INSERT INTO "abc abc" VALUES(X'00112233', NULL, NULL);
+      VACUUM;
+    }
+  } {}
+  do_test vacuum-6.4 {
+    execsql {
+      select count(*) from "abc abc" WHERE a = X'00112233';
+    }
+  } {1}
+}
+
+# Check what happens when an in-memory database is vacuumed. The
+# [delete_file] command covers us in case the library was compiled
+# without in-memory database support.
+#
+forcedelete :memory:
+do_test vacuum-7.0 {
+  sqlite3 db2 :memory:
+  execsql {
+    CREATE TABLE t1(t);
+    VACUUM;
+  } db2
+} {}
+do_test vacuum-7.1 {
+  execsql {
+    CREATE TABLE t2(t);
+    CREATE TABLE t3(t);
+    DROP TABLE t2;
+    PRAGMA freelist_count;
+  }
+} {1}
+do_test vacuum-7.2 {
+  execsql {
+    VACUUM;
+    pragma integrity_check;
+  } db2
+} {ok}
+do_test vacuum-7.3 {
+  execsql { PRAGMA freelist_count; } db2
+} {0}
+ifcapable autovacuum {
+  do_test vacuum-7.4 {
+    execsql { PRAGMA auto_vacuum } db2
+  } {0}
+  do_test vacuum-7.5 {
+    execsql { PRAGMA auto_vacuum = 1} db2
+    execsql { PRAGMA auto_vacuum } db2
+  } {0}
+  do_test vacuum-7.6 {
+    execsql { PRAGMA auto_vacuum = 1} db2
+    execsql { VACUUM } db2
+    execsql { PRAGMA auto_vacuum } db2
+  } {1}
+}
+db2 close
+
+# Ticket #873.  VACUUM a database that has ' in its name.
+#
+do_test vacuum-8.1 {
+  forcedelete a'z.db
+  forcedelete a'z.db-journal
+  sqlite3 db2 a'z.db
+  execsql {
+    CREATE TABLE t1(t);
+    VACUUM;
+  } db2
+} {}
+db2 close
+
+# Ticket #1095:  Vacuum a table that uses AUTOINCREMENT
+#
+ifcapable {autoinc} {
+  do_test vacuum-9.1 {
+    execsql {
+      DROP TABLE 'abc abc';
+      CREATE TABLE autoinc(a INTEGER PRIMARY KEY AUTOINCREMENT, b);
+      INSERT INTO autoinc(b) VALUES('hi');
+      INSERT INTO autoinc(b) VALUES('there');
+      DELETE FROM autoinc;
+    }
+    set ::cksum [cksum]
+    expr {$::cksum!=""}
+  } {1}
+  do_test vacuum-9.2 {
+    execsql {
+      VACUUM;
+    }
+    cksum
+  } $::cksum
+  do_test vacuum-9.3 {
+    execsql {
+      INSERT INTO autoinc(b) VALUES('one');
+      INSERT INTO autoinc(b) VALUES('two');
+    }
+    set ::cksum [cksum]
+    expr {$::cksum!=""}
+  } {1}
+  do_test vacuum-9.4 {
+    execsql {
+      VACUUM;
+    }
+    cksum
+  } $::cksum
+}
+
+forcedelete {a'z.db}
+
+# Test that "PRAGMA count_changes" does not interfere with VACUUM or cause
+# it to return any rows to the user.
+#
+do_test vacuum-10.1 {
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+  execsql {
+    CREATE TABLE t8(a, b);
+    INSERT INTO t8 VALUES('a', 'b');
+    INSERT INTO t8 VALUES('c', 'd');
+    PRAGMA count_changes = 1;
+  }
+} {}
+do_test vacuum-10.2 { execsql VACUUM } {}
+
+finish_test
diff --git a/test/vacuum2.test b/test/vacuum2.test
new file mode 100644
index 0000000000000000000000000000000000000000..89fdb506c5bfc519e117aa0cd0b7d4000b3f389c
--- /dev/null
+++ b/test/vacuum2.test
@@ -0,0 +1,251 @@
+# 2005 February 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the VACUUM statement.
+#
+# $Id: vacuum2.test,v 1.10 2009/02/18 20:31:18 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix vacuum2
+
+# Do not use a codec for tests in this file, as the database file is
+# manipulated directly using tcl scripts (using the [hexio_write] command).
+#
+do_not_use_codec
+
+# If the VACUUM statement is disabled in the current build, skip all
+# the tests in this file.
+#
+ifcapable {!vacuum||!autoinc} {
+  finish_test
+  return
+}
+if $AUTOVACUUM {
+  finish_test
+  return
+}
+
+# Ticket #1121 - make sure vacuum works if all autoincrement tables
+# have been deleted.
+#
+do_test vacuum2-1.1 {
+  execsql {
+    CREATE TABLE t1(x INTEGER PRIMARY KEY AUTOINCREMENT, y);
+    DROP TABLE t1;
+    VACUUM;
+  }
+} {}
+
+# Ticket #2518.  Make sure vacuum increments the change counter
+# in the database header.
+#
+do_test vacuum2-2.1 {
+  execsql {
+    CREATE TABLE t1(x);
+    CREATE TABLE t2(y);
+    INSERT INTO t1 VALUES(1);
+  }
+  hexio_get_int [hexio_read test.db 24 4]
+} [expr {[hexio_get_int [hexio_read test.db 24 4]]+3}]
+do_test vacuum2-2.2 {
+  execsql {
+    VACUUM
+  }
+  hexio_get_int [hexio_read test.db 24 4]
+} [expr {[hexio_get_int [hexio_read test.db 24 4]]+1}]
+
+############################################################################
+# Verify that we can use the auto_vacuum pragma to request a new
+# autovacuum setting, do a VACUUM, and the new setting takes effect.
+# Make sure this happens correctly even if there are multiple open
+# connections to the same database file.
+#
+sqlite3 db2 test.db
+set pageSize [db eval {pragma page_size}]
+
+# We are currently not autovacuuming so the database should be 3 pages
+# in size.  1 page for each of sqlite_master, t1, and t2.
+#
+do_test vacuum2-3.1 {
+  execsql {
+    INSERT INTO t1 VALUES('hello');
+    INSERT INTO t2 VALUES('out there');
+  }
+  expr {[file size test.db]/$pageSize}
+} {3}
+set cksum [cksum]
+do_test vacuum2-3.2 {
+  cksum db2
+} $cksum
+
+# Convert the database to an autovacuumed database.
+ifcapable autovacuum {
+  do_test vacuum2-3.3 {
+    execsql {
+      PRAGMA auto_vacuum=FULL;
+      VACUUM;
+    }
+    expr {[file size test.db]/$pageSize}
+  } {4}
+}
+do_test vacuum2-3.4 {
+  cksum db2
+} $cksum
+do_test vacuum2-3.5 {
+  cksum
+} $cksum
+do_test vacuum2-3.6 {
+  execsql {PRAGMA integrity_check} db2
+} {ok}
+do_test vacuum2-3.7 {
+  execsql {PRAGMA integrity_check} db
+} {ok}
+
+# Convert the database back to a non-autovacuumed database.
+do_test vacuum2-3.13 {
+  execsql {
+    PRAGMA auto_vacuum=NONE;
+    VACUUM;
+  }
+  expr {[file size test.db]/$pageSize}
+} {3}
+do_test vacuum2-3.14 {
+  cksum db2
+} $cksum
+do_test vacuum2-3.15 {
+  cksum
+} $cksum
+do_test vacuum2-3.16 {
+  execsql {PRAGMA integrity_check} db2
+} {ok}
+do_test vacuum2-3.17 {
+  execsql {PRAGMA integrity_check} db
+} {ok}
+
+db2 close
+
+ifcapable autovacuum {
+  do_test vacuum2-4.1 {
+    db close
+    forcedelete test.db
+    sqlite3 db test.db
+    execsql {
+      pragma auto_vacuum=1;
+      create table t(a, b);
+      insert into t values(1, 2);
+      insert into t values(1, 2);
+      pragma auto_vacuum=0;
+      vacuum;
+      pragma auto_vacuum;
+    }
+  } {0}
+  do_test vacuum2-4.2 {
+    execsql {
+      pragma auto_vacuum=1;
+      vacuum;
+      pragma auto_vacuum;
+    }
+  } {1}
+  do_test vacuum2-4.3 {
+    execsql {
+      pragma integrity_check
+    }
+  } {ok}
+  do_test vacuum2-4.4 {
+    db close
+    sqlite3 db test.db
+    execsql {
+      pragma auto_vacuum;
+    }
+  } {1}
+  do_test vacuum2-4.5 {  # Ticket #3663
+    execsql {
+      pragma auto_vacuum=2;
+      vacuum;
+      pragma auto_vacuum;
+    }
+  } {2}
+  do_test vacuum2-4.6 {
+    execsql {
+      pragma integrity_check
+    }
+  } {ok}
+  do_test vacuum2-4.7 {
+    db close
+    sqlite3 db test.db
+    execsql {
+      pragma auto_vacuum;
+    }
+  } {2}
+}
+
+
+#-------------------------------------------------------------------------
+# The following block of tests verify the behaviour of the library when
+# a database is VACUUMed when there are one or more unfinalized SQL 
+# statements reading the same database using the same db handle.
+#
+db close
+forcedelete test.db
+sqlite3 db test.db
+do_execsql_test vacuum2-5.1 {
+  CREATE TABLE t1(a PRIMARY KEY, b UNIQUE);
+  INSERT INTO t1 VALUES(1, randomblob(500));
+  INSERT INTO t1 SELECT a+1, randomblob(500) FROM t1;      -- 2
+  INSERT INTO t1 SELECT a+2, randomblob(500) FROM t1;      -- 4 
+  INSERT INTO t1 SELECT a+4, randomblob(500) FROM t1;      -- 8 
+  INSERT INTO t1 SELECT a+8, randomblob(500) FROM t1;      -- 16 
+} {}
+
+do_test vacuum2-5.2 {
+  list [catch {
+    db eval {SELECT a, b FROM t1} { if {$a == 8} { execsql VACUUM } }
+  } msg] $msg
+} {1 {cannot VACUUM - SQL statements in progress}}
+
+do_test vacuum2-5.3 {
+  list [catch {
+    db eval {SELECT 1, 2, 3} { execsql VACUUM }
+  } msg] $msg
+} {1 {cannot VACUUM - SQL statements in progress}}
+
+do_test vacuum2-5.4 {
+  set res ""
+  set res2 ""
+  db eval {SELECT a, b FROM t1 WHERE a<=10} {
+    if {$a==6} { set res [catchsql VACUUM] }
+    lappend res2 $a
+  }
+  lappend res2 $res
+} {1 2 3 4 5 6 7 8 9 10 {1 {cannot VACUUM - SQL statements in progress}}}
+
+#-------------------------------------------------------------------------
+# Check that if the definition of a collation sequence is changed and
+# VACUUM run, records are store in the (new) correct order following the
+# VACUUM. Even if the modified collation is attached to a PK of a WITHOUT
+# ROWID table.
+
+proc cmp {lhs rhs} { string compare $lhs $rhs }
+db collate cmp cmp
+do_execsql_test 6.0 {
+  CREATE TABLE t6(x PRIMARY KEY COLLATE cmp, y) WITHOUT ROWID;
+  CREATE INDEX t6y ON t6(y);
+  INSERT INTO t6 VALUES('i', 'one');
+  INSERT INTO t6 VALUES('ii', 'one');
+  INSERT INTO t6 VALUES('iii', 'one');
+}
+integrity_check 6.1
+proc cmp {lhs rhs} { string compare $rhs $lhs }
+do_execsql_test 6.2 VACUUM
+integrity_check 6.3
+
+finish_test
diff --git a/test/vacuum3.test b/test/vacuum3.test
new file mode 100644
index 0000000000000000000000000000000000000000..e6a1c2b9ec37c1e14716bcabe1bd996ffa71aaf5
--- /dev/null
+++ b/test/vacuum3.test
@@ -0,0 +1,350 @@
+# 2007 March 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is changing the database page size using a 
+# VACUUM statement.
+#
+# $Id: vacuum3.test,v 1.9 2008/08/26 21:07:27 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If the VACUUM statement is disabled in the current build, skip all
+# the tests in this file.
+#
+ifcapable !vacuum {
+  finish_test
+  return
+}
+
+
+#-------------------------------------------------------------------
+# Test cases vacuum3-1.* convert a simple 2-page database between a 
+# few different page sizes.
+#
+do_test vacuum3-1.1 {
+  execsql {
+    PRAGMA auto_vacuum=OFF;
+    PRAGMA page_size = 1024;
+    CREATE TABLE t1(a, b, c);
+    INSERT INTO t1 VALUES(1, 2, 3);
+  }
+} {}
+do_test vacuum3-1.2 {
+  execsql { PRAGMA page_size }
+} {1024}
+do_test vacuum3-1.3 {
+  file size test.db
+} {2048}
+
+set I 4
+foreach {request actual database} [list \
+  2048 2048 4096                        \
+  1024 1024 2048                        \
+  1170 1024 2048                        \
+  256  1024 2048                        \
+  512  512  1024                        \
+  4096 4096 8192                        \
+  1024 1024 2048                        \
+] {
+  do_test vacuum3-1.$I.1 {
+    execsql " 
+      PRAGMA page_size = $request;
+      VACUUM;
+    "
+    execsql { PRAGMA page_size }
+  } $actual
+  do_test vacuum3-1.$I.2 {
+    file size test.db
+  } $database
+  do_test vacuum3-1.$I.3 {
+    execsql { SELECT * FROM t1 }
+  } {1 2 3}
+  integrity_check vacuum3-1.$I.4
+
+  incr I
+}
+
+#-------------------------------------------------------------------
+# Test cases vacuum3-2.* convert a simple 3-page database between a 
+# few different page sizes.
+#
+do_test vacuum3-2.1 {
+  execsql {
+    PRAGMA page_size = 1024;
+    VACUUM;
+  }
+  ifcapable altertable {
+    execsql { ALTER TABLE t1 ADD COLUMN d; }
+  } else {
+    execsql {
+      DROP TABLE t1;
+      CREATE TABLE t1(a, b, c, d);
+      INSERT INTO t1 VALUES(1, 2, 3, NULL);
+    }
+  }
+  execsql {
+    UPDATE t1 SET d = randomblob(1000);
+  }
+  file size test.db
+} {3072}
+do_test vacuum3-2.2 {
+  execsql { PRAGMA page_size }
+} {1024}
+do_test vacuum3-2.3 {
+  set blob [db one {select d from t1}]
+  string length $blob
+} {1000}
+
+set I 4
+foreach {request actual database} [list \
+  2048 2048 4096                        \
+  1024 1024 3072                        \
+  1170 1024 3072                        \
+  256  1024 3072                        \
+  512  512  2048                        \
+  4096 4096 8192                        \
+  1024 1024 3072                        \
+] {
+  do_test vacuum3-2.$I.1 {
+    execsql " 
+      PRAGMA page_size = $request;
+      VACUUM;
+    "
+    execsql { PRAGMA page_size }
+  } $actual
+  do_test vacuum3-2.$I.2 {
+    file size test.db
+  } $database
+  do_test vacuum3-2.$I.3 {
+    execsql { SELECT * FROM t1 }
+  } [list 1 2 3 $blob]
+  integrity_check vacuum3-1.$I.4
+
+  incr I
+}
+
+#-------------------------------------------------------------------
+# Test cases vacuum3-3.* converts a database large enough to include
+# the locking page (in a test environment) between few different 
+# page sizes.
+#
+proc signature {} {
+  return [db eval {SELECT count(*), md5sum(a), md5sum(b), md5sum(c) FROM abc}]
+}
+do_test vacuum3-3.1 {
+  execsql "
+    PRAGMA page_size = 1024;
+    BEGIN;
+    CREATE TABLE abc(a PRIMARY KEY, b, c);
+    INSERT INTO abc VALUES(randomblob(100), randomblob(200), randomblob(1000));
+    INSERT INTO abc 
+        SELECT randomblob(1000), randomblob(200), randomblob(100)
+        FROM abc;
+    INSERT INTO abc 
+        SELECT randomblob(100), randomblob(200), randomblob(1000)
+        FROM abc;
+    INSERT INTO abc 
+        SELECT randomblob(100), randomblob(200), randomblob(1000)
+        FROM abc;
+    INSERT INTO abc 
+        SELECT randomblob(100), randomblob(200), randomblob(1000)
+        FROM abc;
+    INSERT INTO abc 
+        SELECT randomblob(100), randomblob(200), randomblob(1000)
+        FROM abc;
+    INSERT INTO abc 
+        SELECT randomblob(25), randomblob(45), randomblob(9456)
+        FROM abc;
+    INSERT INTO abc 
+        SELECT randomblob(100), randomblob(200), randomblob(1000)
+        FROM abc;
+    INSERT INTO abc 
+        SELECT randomblob(25), randomblob(45), randomblob(9456)
+        FROM abc;
+    COMMIT;
+  "
+} {}
+do_test vacuum3-3.2 {
+  execsql { PRAGMA page_size }
+} {1024}
+
+set ::sig [signature]
+
+set I 3
+foreach {request actual} [list \
+  2048 2048                    \
+  1024 1024                    \
+  1170 1024                    \
+  256  1024                    \
+  512  512                     \
+  4096 4096                    \
+  1024 1024                    \
+] {
+  do_test vacuum3-3.$I.1 {
+    execsql " 
+      PRAGMA page_size = $request;
+      VACUUM;
+    "
+    execsql { PRAGMA page_size }
+  } $actual
+  do_test vacuum3-3.$I.2 {
+    signature
+  } $::sig
+  integrity_check vacuum3-3.$I.3
+
+  incr I
+}
+
+do_test vacuum3-4.1 {
+  db close
+  delete_file test.db
+  sqlite3 db test.db
+  execsql {
+    PRAGMA page_size=1024;
+    CREATE TABLE abc(a, b, c);
+    INSERT INTO abc VALUES(1, 2, 3);
+    INSERT INTO abc VALUES(4, 5, 6);
+  }
+  execsql { SELECT * FROM abc }
+} {1 2 3 4 5 6}
+do_test vacuum3-4.2 {
+  sqlite3 db2 test.db
+  execsql { SELECT * FROM abc } db2
+} {1 2 3 4 5 6}
+do_test vacuum3-4.3 {
+  execsql { 
+    PRAGMA page_size = 2048;
+    VACUUM;
+  }
+  execsql { SELECT * FROM abc }
+} {1 2 3 4 5 6}
+do_test vacuum3-4.4 {
+  execsql { SELECT * FROM abc } db2
+} {1 2 3 4 5 6}
+do_test vacuum3-4.5 {
+  execsql {
+    PRAGMA page_size=16384;
+    VACUUM;
+  } db2
+  execsql { SELECT * FROM abc } db2
+} {1 2 3 4 5 6}
+do_test vacuum3-4.6 {
+  execsql {
+    PRAGMA page_size=1024;
+    VACUUM;
+  }
+  execsql { SELECT * FROM abc } db2
+} {1 2 3 4 5 6}
+
+# Unable to change the page-size of an in-memory using vacuum.
+db2 close
+sqlite3 db2 :memory:
+do_test vacuum3-5.1 {
+  db2 eval {
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(1234);
+    PRAGMA page_size=4096;
+    VACUUM;
+    SELECT * FROM t1;
+  }
+} {1234}
+do_test vacuum3-5.2 {
+  db2 eval {
+    PRAGMA page_size
+  }
+} {1024}
+
+set create_database_sql {
+  BEGIN; 
+  CREATE TABLE t1(a, b, c); 
+  INSERT INTO t1 VALUES(1, randstr(50,50), randstr(50,50)); 
+  INSERT INTO t1 SELECT a+2, b||'-'||rowid, c||'-'||rowid FROM t1; 
+  INSERT INTO t1 SELECT a+4, b||'-'||rowid, c||'-'||rowid FROM t1;
+  INSERT INTO t1 SELECT a+8, b||'-'||rowid, c||'-'||rowid FROM t1;
+  INSERT INTO t1 SELECT a+16, b||'-'||rowid, c||'-'||rowid FROM t1;
+  INSERT INTO t1 SELECT a+32, b||'-'||rowid, c||'-'||rowid FROM t1;
+  INSERT INTO t1 SELECT a+64, b||'-'||rowid, c||'-'||rowid FROM t1;
+  INSERT INTO t1 SELECT a+128, b||'-'||rowid, c||'-'||rowid FROM t1;
+  INSERT INTO t1 VALUES(1, randstr(600,600), randstr(600,600));
+  CREATE TABLE t2 AS SELECT * FROM t1;
+  CREATE TABLE t3 AS SELECT * FROM t1;
+  COMMIT;
+  DROP TABLE t2;
+}
+
+do_ioerr_test vacuum3-ioerr-1 -cksum true -sqlprep "
+  PRAGMA page_size = 1024;
+  $create_database_sql
+" -sqlbody {
+  PRAGMA page_size = 4096;
+  VACUUM;
+} 
+do_ioerr_test vacuum3-ioerr-2 -cksum true -sqlprep " 
+  PRAGMA page_size = 2048;
+  $create_database_sql
+" -sqlbody {
+  PRAGMA page_size = 512;
+  VACUUM;
+} 
+
+ifcapable autovacuum {
+  do_ioerr_test vacuum3-ioerr-3 -cksum true -sqlprep "
+    PRAGMA auto_vacuum = 0;
+    $create_database_sql
+  " -sqlbody {
+    PRAGMA auto_vacuum = 1;
+    VACUUM;
+  } 
+  do_ioerr_test vacuum3-ioerr-4 -cksum true -sqlprep "
+    PRAGMA auto_vacuum = 1;
+    $create_database_sql
+  " -sqlbody {
+    PRAGMA auto_vacuum = 0;
+    VACUUM;
+  } 
+}
+
+source $testdir/malloc_common.tcl
+if {$MEMDEBUG} {
+  do_malloc_test vacuum3-malloc-1 -sqlprep { 
+    PRAGMA page_size = 2048;
+    BEGIN; 
+    CREATE TABLE t1(a, b, c); 
+    INSERT INTO t1 VALUES(1, randstr(50,50), randstr(50,50)); 
+    INSERT INTO t1 SELECT a+2, b||'-'||rowid, c||'-'||rowid FROM t1; 
+    INSERT INTO t1 SELECT a+4, b||'-'||rowid, c||'-'||rowid FROM t1;
+    INSERT INTO t1 SELECT a+8, b||'-'||rowid, c||'-'||rowid FROM t1;
+    INSERT INTO t1 SELECT a+16, b||'-'||rowid, c||'-'||rowid FROM t1;
+    INSERT INTO t1 SELECT a+32, b||'-'||rowid, c||'-'||rowid FROM t1;
+    INSERT INTO t1 SELECT a+64, b||'-'||rowid, c||'-'||rowid FROM t1;
+    INSERT INTO t1 SELECT a+128, b||'-'||rowid, c||'-'||rowid FROM t1;
+    INSERT INTO t1 VALUES(1, randstr(600,600), randstr(600,600));
+    CREATE TABLE t2 AS SELECT * FROM t1;
+    CREATE TABLE t3 AS SELECT * FROM t1;
+    COMMIT;
+    DROP TABLE t2;
+  } -sqlbody {
+    PRAGMA page_size = 512;
+    VACUUM;
+  } 
+  do_malloc_test vacuum3-malloc-2 -sqlprep { 
+    PRAGMA encoding=UTF16;
+    CREATE TABLE t1(a, b, c);
+    INSERT INTO t1 VALUES(1, 2, 3);
+    CREATE TABLE t2(x,y,z);
+    INSERT INTO t2 SELECT * FROM t1;
+  } -sqlbody {
+    VACUUM;
+  } 
+}
+
+finish_test
diff --git a/test/vacuum4.test b/test/vacuum4.test
new file mode 100644
index 0000000000000000000000000000000000000000..bbf0dd43790772d13d5606b56b581c1efd9287f4
--- /dev/null
+++ b/test/vacuum4.test
@@ -0,0 +1,69 @@
+# 2010 February 21
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+# This file implements a test of ticket [da1151f97df244a1]:  An
+# assertion fault while VACUUMing an auto_vacuumed database with
+# large schema.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If the VACUUM statement is disabled in the current build, skip all
+# the tests in this file.
+#
+ifcapable !vacuum {
+  finish_test
+  return
+}
+
+do_test vacuum4-1.1 {
+  db eval {
+    PRAGMA auto_vacuum=FULL;
+    CREATE TABLE t1(
+      c000, c001, c002, c003, c004, c005, c006, c007, c008, c009,
+      c010, c011, c012, c013, c014, c015, c016, c017, c018, c019,
+      c020, c021, c022, c023, c024, c025, c026, c027, c028, c029,
+      c030, c031, c032, c033, c034, c035, c036, c037, c038, c039,
+      c040, c041, c042, c043, c044, c045, c046, c047, c048, c049,
+      c050, c051, c052, c053, c054, c055, c056, c057, c058, c059,
+      c060, c061, c062, c063, c064, c065, c066, c067, c068, c069,
+      c070, c071, c072, c073, c074, c075, c076, c077, c078, c079,
+      c080, c081, c082, c083, c084, c085, c086, c087, c088, c089,
+      c090, c091, c092, c093, c094, c095, c096, c097, c098, c099,
+      c100, c101, c102, c103, c104, c105, c106, c107, c108, c109,
+      c110, c111, c112, c113, c114, c115, c116, c117, c118, c119,
+      c120, c121, c122, c123, c124, c125, c126, c127, c128, c129,
+      c130, c131, c132, c133, c134, c135, c136, c137, c138, c139,
+      c140, c141, c142, c143, c144, c145, c146, c147, c148, c149
+    );
+    CREATE TABLE t2(
+      c000, c001, c002, c003, c004, c005, c006, c007, c008, c009,
+      c010, c011, c012, c013, c014, c015, c016, c017, c018, c019,
+      c020, c021, c022, c023, c024, c025, c026, c027, c028, c029,
+      c030, c031, c032, c033, c034, c035, c036, c037, c038, c039,
+      c040, c041, c042, c043, c044, c045, c046, c047, c048, c049,
+      c050, c051, c052, c053, c054, c055, c056, c057, c058, c059,
+      c060, c061, c062, c063, c064, c065, c066, c067, c068, c069,
+      c070, c071, c072, c073, c074, c075, c076, c077, c078, c079,
+      c080, c081, c082, c083, c084, c085, c086, c087, c088, c089,
+      c090, c091, c092, c093, c094, c095, c096, c097, c098, c099,
+      c100, c101, c102, c103, c104, c105, c106, c107, c108, c109,
+      c110, c111, c112, c113, c114, c115, c116, c117, c118, c119,
+      c120, c121, c122, c123, c124, c125, c126, c127, c128, c129,
+      c130, c131, c132, c133, c134, c135, c136, c137, c138, c139,
+      c140, c141, c142, c143, c144, c145, c146, c147, c148, c149
+    );
+    VACUUM;
+  }
+} {}
+
+finish_test
diff --git a/test/vacuum5.test b/test/vacuum5.test
new file mode 100644
index 0000000000000000000000000000000000000000..f203fb87ba4f57f0b695e90654c63bff19b95bdd
--- /dev/null
+++ b/test/vacuum5.test
@@ -0,0 +1,155 @@
+# 2016-08-19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+# This file implements a test for VACUUM on attached databases.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix vacuum5
+
+# If the VACUUM statement is disabled in the current build, skip all
+# the tests in this file.
+#
+ifcapable !vacuum {
+  finish_test
+  return
+}
+
+forcedelete test2.db test3.db
+do_execsql_test vacuum5-1.1 {
+  PRAGMA auto_vacuum = 0;
+  CREATE TABLE main.t1(a,b);
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<1000)
+    INSERT INTO t1(a,b) SELECT x, randomblob(1000) FROM c;
+  CREATE TEMP TABLE ttemp(x,y);
+  INSERT INTO ttemp SELECT * FROM t1;
+  ATTACH 'test2.db' AS x2;
+  ATTACH 'test3.db' AS x3;
+  CREATE TABLE x2.t2(c,d);
+  INSERT INTO t2 SELECT * FROM t1;
+  CREATE TABLE x3.t3(e,f);
+  INSERT INTO t3 SELECT * FROM t1;
+  DELETE FROM t1 WHERE (rowid%3)!=0;
+  DELETE FROM t2 WHERE (rowid%4)!=0;
+  DELETE FROM t3 WHERE (rowid%5)!=0;
+  PRAGMA main.integrity_check;
+  PRAGMA x2.integrity_check;
+  PRAGMA x3.integrity_check;
+} {ok ok ok}
+set size1 [file size test.db]
+set size2 [file size test2.db]
+set size3 [file size test3.db]
+
+do_execsql_test vacuum5-1.2.1 {
+  VACUUM main;
+} {}
+do_test vacuum5-1.2.2 {
+  expr {[file size test.db]<$size1}
+} {1}
+do_test vacuum5-1.2.3 {
+  file size test2.db
+} $size2
+do_test vacuum5-1.2.4 {
+  file size test3.db
+} $size3
+set size1 [file size test.db]
+do_execsql_test vacuum-1.2.5 {
+  DELETE FROM t1;
+  PRAGMA main.integrity_check;
+} {ok}
+
+do_execsql_test vacuum5-1.3.1 {
+  VACUUM x2;
+} {}
+do_test vacuum5-1.3.2 {
+  file size test.db
+} $size1
+do_test vacuum5-1.3.3 {
+  expr {[file size test2.db]<$size2}
+} 1
+do_test vacuum5-1.3.4 {
+  file size test3.db
+} $size3
+set size2 [file size test2.db]
+do_execsql_test vacuum-1.3.5 {
+  DELETE FROM t2;
+  PRAGMA x2.integrity_check;
+} {ok}
+
+do_execsql_test vacuum5-1.4.1 {
+  VACUUM x3;
+} {}
+do_test vacuum5-1.3.2 {
+  file size test.db
+} $size1
+do_test vacuum5-1.3.3 {
+  file size test2.db
+} $size2
+do_test vacuum5-1.3.4 {
+  expr {[file size test3.db]<$size3}
+} 1
+
+# VACUUM is a no-op on the TEMP table
+#
+set sizeTemp [db one {PRAGMA temp.page_count}]
+do_execsql_test vacuum5-1.4.1 {
+  VACUUM temp;
+} {}
+do_execsql_test vacuum5-1.4.2 {
+  PRAGMA temp.page_count;
+} $sizeTemp
+
+do_catchsql_test vacuum5-2.0 {
+  VACUUM olaf;
+} {1 {unknown database olaf}}
+
+#-------------------------------------------------------------------------
+# Test that a temp file is opened as part of VACUUM.
+#
+if {$::TEMP_STORE<3 && [permutation]!="inmemory_journal"} {
+  db close
+  testvfs tvfs 
+  tvfs filter xOpen
+  tvfs script open_cb
+  forcedelete test.db
+
+  set ::openfiles [list]
+  proc open_cb {method args} {
+    lappend ::openfiles [file tail [lindex $args 0]]
+  }
+  sqlite3 db test.db -vfs tvfs
+
+  do_execsql_test 3.0 {
+    PRAGMA temp_store = file;
+    PRAGMA page_size = 1024;
+    PRAGMA cache_size = 50;
+    CREATE TABLE t1(i INTEGER PRIMARY KEY, j UNIQUE);
+    WITH s(i) AS (
+      VALUES(1) UNION ALL SELECT i+1 FROM s WHERE i<1000
+    )
+    INSERT INTO t1 SELECT NULL, randomblob(100) FROM s;
+  }
+
+  do_execsql_test 3.1 { VACUUM }
+
+  db close
+  tvfs delete
+  if {[atomic_batch_write test.db]==0} {
+    do_test 3.2 {
+      lrange $::openfiles 0 4
+    } {test.db test.db-journal test.db-journal {} test.db-journal}
+  }
+} 
+
+
+
+finish_test
diff --git a/test/vacuum6.test b/test/vacuum6.test
new file mode 100644
index 0000000000000000000000000000000000000000..f80ff7546295ffb74afdd3661feabd87a529d958
--- /dev/null
+++ b/test/vacuum6.test
@@ -0,0 +1,113 @@
+# 2016-08-19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+# This file implements a test for VACUUM on attached databases.
+#
+# TESTRUNNER: slow
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix vacuum6
+
+# If the VACUUM statement is disabled in the current build, skip all
+# the tests in this file.
+#
+ifcapable !vacuum {
+  finish_test
+  return
+}
+
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(x INTEGER PRIMARY KEY, y);
+  INSERT INTO t1 VALUES(1, 1);
+} {}
+
+do_execsql_test 1.1 {
+  VACUUM
+}
+
+reset_db
+do_execsql_test 1.2 {
+  CREATE TABLE t1(x,b);
+  CREATE INDEX x1 ON t1(x);
+  CREATE INDEX x2 ON t1(x);
+  CREATE INDEX x3 ON t1(x);
+  INSERT INTO t1 SELECT 2,'';
+  VACUUM;
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+foreach {tn sz} {1 400 2 4000 3 9999} {
+  reset_db
+  do_execsql_test 2.$tn.1 {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+    WITH s(i) AS (
+        SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<100
+    )
+    INSERT INTO t1 SELECT i, randomblob($sz) FROM s;
+  }
+
+  do_execsql_test 2.$tn.2 {
+    vacuum;
+  }
+
+  do_execsql_test 2.$tn.3 {
+    PRAGMA integrity_check;
+  } {ok}
+}
+
+reset_db
+do_execsql_test 3.0 {
+  PRAGMA page_size = 1024;
+  CREATE TABLE t1(x INTEGER PRIMARY KEY, y);
+  INSERT INTO t1 VALUES(2, randomblob(1200));
+} {}
+do_execsql_test 3.1 {
+  PRAGMA page_size = 512;
+  VACUUM;
+}
+do_execsql_test 3.2 {
+  PRAGMA integrity_check
+} {ok}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 4.0 {
+  CREATE TABLE tx(a, b);
+  CREATE INDEX i1 ON tx(b);
+  WITH s(i) AS (
+      SELECT 8000 UNION ALL SELECT i+1 FROM s WHERE i<10000
+  )
+  INSERT INTO tx SELECT i, randomblob(i) FROM s;
+
+  SELECT sum(length(b)) FROM tx;
+} {18009000}
+foreach {tn pgsz av} {
+  1 2048   0
+  2 1024   1
+  3 65536  0
+  4 8192   1
+  5 512    0
+  6 4096   1
+} {
+  do_execsql_test 4.1.$tn.1 "
+    PRAGMA page_size = $pgsz;
+    PRAGMA auto_vacuum = $av;
+  "
+  do_execsql_test 4.1.$tn.2 VACUUM
+  integrity_check 4.1.$tn.3
+}
+
+finish_test
diff --git a/test/vacuummem.test b/test/vacuummem.test
new file mode 100644
index 0000000000000000000000000000000000000000..9668b0ea90b37f1ba02bf5390035ee3f9c9e30c8
--- /dev/null
+++ b/test/vacuummem.test
@@ -0,0 +1,74 @@
+# 2005 February 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing that the VACUUM statement correctly
+# frees any memory used for a temporary cache.
+#
+# TESTRUNNER: slow
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix vacuummem
+
+if {[permutation]=="memsubsys1"} {
+  finish_test
+  return
+}
+
+# If ENABLE_MEMORY_MANAGEMENT is defined, when VACUUM is run the temp db
+# is able to borrow space from the main db (and it does, because the
+# temp db is configure with a very small cache). When the VACUUM is
+# finished and the temp db closed, all the page-cache memory currently 
+# assigned to the temp db is freed. If ENABLE_MEMORY_MANAGEMENT is defined
+# this causes the total memory usage to drop much more than expected,
+# causing tests in this file to fail.
+#
+ifcapable memorymanage {
+  finish_test
+  return
+}
+
+
+proc memory_used {} { 
+  set stat [sqlite3_status SQLITE_STATUS_MEMORY_USED 1]  
+  lindex $stat 1
+}
+
+do_execsql_test 1.0 {
+  PRAGMA cache_size = -2000;
+  CREATE TABLE t1(a, b, c);
+
+  WITH r(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM r WHERE i<100000
+  )
+  INSERT INTO t1 SELECT randomblob(100),randomblob(100),randomblob(100) FROM r;
+
+  CREATE INDEX t1a ON t1(a);
+  CREATE INDEX t1b ON t1(b);
+  CREATE INDEX t1c ON t1(c);
+}
+set ans "#/[memory_used]/"
+
+do_test 1.1 { memory_used } $ans
+
+do_execsql_test 1.2 VACUUM
+
+do_test 1.3 { memory_used } $ans
+
+do_execsql_test 1.4 {
+  SELECT count(*) FROM t1 WHERE +a IS NOT NULL
+} {100000}
+
+do_test 1.5 { memory_used } $ans
+
+
+
+finish_test
diff --git a/test/values.test b/test/values.test
new file mode 100644
index 0000000000000000000000000000000000000000..c3c52ceb1e72c5d2ec3ddf95be6473ddc954cf73
--- /dev/null
+++ b/test/values.test
@@ -0,0 +1,715 @@
+# 2024 March 3
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix values
+
+
+do_execsql_test 1.0 {
+  CREATE TABLE x1(a, b, c);
+}
+
+
+explain_i {
+  INSERT INTO x1(a, b, c) VALUES(1, 1, 1), (2, 2, 2), (3, 3, 3), (4, 4, 4);
+}
+do_execsql_test 1.1.1 {
+  INSERT INTO x1 VALUES(1, 1, 1), (2, 2, 2), (3, 3, 3), (4, 4, 4);
+}
+do_execsql_test 1.1.2 {
+  SELECT * FROM x1;
+} {
+  1 1 1
+  2 2 2
+  3 3 3
+  4 4 4
+}
+
+do_execsql_test 1.2.0 {
+  DELETE FROM x1
+}
+do_execsql_test 1.2.1 {
+  INSERT INTO x1 VALUES(1, 1, 1), (2, 2, 2), (3, 3, 3) UNION ALL SELECT 4, 4, 4;
+  SELECT * FROM x1;
+} {1 1 1  2 2 2   3 3 3  4 4 4}
+
+sqlite3_limit db SQLITE_LIMIT_COMPOUND_SELECT 4
+
+do_execsql_test 1.2.2 {
+  DELETE FROM x1;
+  INSERT INTO x1 
+  VALUES(1, 1, 1), (2, 2, 2), (3, 3, 3), (4, 4, 4), (5, 5, 5) 
+  UNION ALL SELECT 6, 6, 6;
+  SELECT * FROM x1;
+} {1 1 1  2 2 2   3 3 3  4 4 4  5 5 5  6 6 6}
+
+do_execsql_test 1.2.3 {
+  DELETE FROM x1;
+  INSERT INTO x1 
+  VALUES(1, 1, 1), (2, 2, 2), (3, 3, 3), (4, 4, 4)
+  UNION ALL SELECT 6, 6, 6;
+  SELECT * FROM x1;
+} {1 1 1  2 2 2   3 3 3  4 4 4  6 6 6}
+
+do_execsql_test 1.2.4 {
+  DELETE FROM x1;
+  INSERT INTO x1 VALUES(1, 1, 1), (2, 2, 2), (3, 3, 3) UNION ALL SELECT 6, 6, 6;
+  SELECT * FROM x1;
+} {
+ 1 1 1
+ 2 2 2
+ 3 3 3
+ 6 6 6
+}
+
+set a 4
+set b 5
+set c 6
+do_execsql_test 1.2.5 {
+  DELETE FROM x1;
+  INSERT INTO x1 
+  VALUES(1, 1, 1), (2, 2, 2), (3, 3, 3), 
+        (4, 4, $a), (5, 5, $b), (6, 6, $c)
+}
+
+do_execsql_test 1.2.6 {
+  SELECT * FROM x1;
+} {
+  1 1 1
+  2 2 2
+  3 3 3
+  4 4 4
+  5 5 5
+  6 6 6
+}
+
+#-------------------------------------------------------------------------
+# SQLITE_LIMIT_COMPOUND_SELECT set to 0.
+#
+reset_db
+
+do_execsql_test 2.0 {
+  CREATE TABLE x1(a, b, c);
+}
+
+sqlite3_limit db SQLITE_LIMIT_COMPOUND_SELECT 3
+
+do_catchsql_test 2.1.1 {
+  INSERT INTO x1 VALUES
+      (1, 1, 1), 
+      (2, 2, 2), 
+      (3, 3, 3), 
+      (4, 4, 4), 
+      (5, 5, 5), 
+      (6, 6, 6), 
+      (7, 7, 7), 
+      (8, 8, 8), 
+      (9, 9, 9), 
+      (10, 10, 10, 10)
+} {1 {all VALUES must have the same number of terms}}
+
+do_catchsql_test 2.1.2 {
+  INSERT INTO x1 VALUES
+      (1, 1, 1), 
+      (2, 2, 2, 2), 
+      (3, 3, 3), 
+      (4, 4, 4), 
+      (5, 5, 5), 
+      (6, 6, 6), 
+      (7, 7, 7), 
+      (8, 8, 8), 
+      (9, 9, 9), 
+      (10, 10, 10)
+} {1 {all VALUES must have the same number of terms}}
+
+sqlite3_limit db SQLITE_LIMIT_COMPOUND_SELECT 0
+
+do_execsql_test 2.2 {
+  INSERT INTO x1 VALUES
+      (1, 1, 1), 
+      (2, 2, 2), 
+      (3, 3, 3), 
+      (4, 4, 4), 
+      (5, 5, 5), 
+      (6, 6, 6), 
+      (7, 7, 7), 
+      (8, 8, 8), 
+      (9, 9, 9), 
+      (10, 10, 10)
+} {}
+do_execsql_test 2.3 {
+  INSERT INTO x1 VALUES
+      (1, 1, 1), 
+      (2, 2, 2), 
+      (3, 3, 3), 
+      (4, 4, 4), 
+      (5, 5, 5), 
+      (6, 6, 6), 
+      (7, 7, 7), 
+      (8, 8, 8), 
+      (9, 9, 9), 
+      (10, 10, 10)
+      UNION ALL 
+      SELECT 5, 12, 12
+      ORDER BY 1
+} {}
+
+#-------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 3.0 {
+  CREATE TABLE y1(x, y);
+}
+
+do_execsql_test 3.1.1 {
+  DELETE FROM y1;
+  INSERT INTO y1 VALUES(1, 2), (3, 4), (row_number() OVER (), 5);
+}
+do_execsql_test 3.1.2 {
+  SELECT * FROM y1;
+} {1 2  3 4  1 5}
+do_execsql_test 3.2.1 {
+  DELETE FROM y1;
+  INSERT INTO y1 VALUES(1, 2), (3, 4), (row_number() OVER (), 6)
+    , (row_number() OVER (), 7)
+}
+do_execsql_test 3.1.2 {
+  SELECT * FROM y1;
+} {1 2  3 4  1 6  1 7}
+
+#-------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 4.0 {
+  CREATE TABLE x1(a PRIMARY KEY, b) WITHOUT ROWID;
+}
+
+foreach {tn iLimit} {1 0    2 3} { 
+  sqlite3_limit db SQLITE_LIMIT_COMPOUND_SELECT $iLimit
+
+  do_execsql_test 4.1.1 {
+    DELETE FROM x1;
+    INSERT INTO x1 VALUES
+        (1, 1),
+        (2, (SELECT * FROM  (VALUES('a'), ('b'), ('c'), ('d')) ))
+  }
+  do_execsql_test 4.1.2 {
+    SELECT * FROM x1
+  } {1 1 2 a}
+
+  do_execsql_test 4.2.1 {
+    DELETE FROM x1;
+    INSERT INTO x1 VALUES
+        (1, 1),
+        (2, 2),
+        (3, 3),
+        (4, 4),
+        (5, (SELECT * FROM  (VALUES('a'), ('b'), ('c'), ('d')) ))
+  }
+  do_execsql_test 4.2.2 {
+    SELECT * FROM x1
+  } {1 1 2 2 3 3 4 4 5 a}
+
+  do_execsql_test 4.3.1 {
+    DELETE FROM x1;
+    INSERT INTO x1 VALUES
+        (1, (SELECT * FROM  (VALUES('a'), ('b'), ('c'), ('d'), ('e')) ))
+  }
+  do_execsql_test 4.3.2 {
+    SELECT * FROM x1
+  } {1 a}
+}
+
+#------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 5.0 {
+  CREATE VIEW v1 AS VALUES(1, 2, 3), (4, 5, 6), (7, 8, 9);
+}
+do_execsql_test 5.1 {
+  SELECT * FROM v1
+} {1 2 3 4 5 6 7 8 9}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 6.0 {
+  CREATE TABLE t1(x);
+  INSERT INTO t1 VALUES(1), (2);
+}
+
+do_execsql_test 6.1 {
+  SELECT ( VALUES( x ), ( x ) ) FROM t1;
+} {1 2}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 6.0 {
+  CREATE TABLE t1(x);
+  INSERT INTO t1 VALUES('x'), ('y');
+}
+
+do_execsql_test 6.1 {
+  SELECT * FROM t1, (VALUES(1), (2))
+} {x 1 x 2 y 1 y 2}
+
+do_execsql_test 6.2 {
+  VALUES(CAST(44 AS REAL)),(55);
+} {44.0 55}
+
+#------------------------------------------------------------------------
+do_execsql_test 7.1 {
+  WITH x1(a, b) AS (
+    VALUES(1, 2), ('a', 'b')
+  )
+  SELECT * FROM x1 one, x1 two
+} {
+  1 2  1 2
+  1 2  a b
+  a b  1 2
+  a b  a b
+}
+
+#-------------------------------------------------------------------------
+reset_db
+
+set VVV {
+  ( VALUES('a', 'b'), ('c', 'd'), (123, NULL) )
+}
+set VVV2 {
+  ( 
+  SELECT 'a' AS column1, 'b' AS column2 
+  UNION ALL SELECT 'c', 'd' UNION ALL SELECT 123, NULL
+  )
+}
+
+do_execsql_test 8.0 {
+  CREATE TABLE t1(x);
+  INSERT INTO t1 VALUES('d'), (NULL), (123)
+}
+foreach {tn q res} {
+  1 "SELECT * FROM t1 LEFT JOIN VVV" {
+    d a b   d c d   d 123 {}
+    {} a b   {} c d   {} 123 {}
+    123 a b   123 c d   123 123 {}
+  }
+
+  2 "SELECT * FROM t1 LEFT JOIN VVV ON (column1=x)" {
+    d {} {}
+    {} {} {}
+    123 123 {}
+  }
+
+  3 "SELECT * FROM t1 RIGHT JOIN VVV" {
+    d a b   d c d   d 123 {}
+    {} a b   {} c d   {} 123 {}
+    123 a b   123 c d   123 123 {}
+  }
+
+  4 "SELECT * FROM t1 RIGHT JOIN VVV ON (column1=x)" {
+    123 123 {}
+    {} a b
+    {} c d
+  }
+
+  5 "SELECT * FROM t1 FULL OUTER JOIN VVV ON (column1=x)" {
+    d {} {}
+    {} {} {}
+    123 123 {}
+    {} a b
+    {} c d
+  }
+
+  6 "SELECT count(*) FROM VVV" { 3 }
+
+  7 "SELECT (SELECT column1 FROM VVV)" { a }
+
+  8 "SELECT * FROM VVV UNION ALL SELECT * FROM VVV" {
+    a b c d 123 {}
+    a b c d 123 {}
+  }
+
+  9 "SELECT * FROM VVV INTERSECT SELECT * FROM VVV" {
+    123 {} a b c d 
+  }
+
+  10 "SELECT * FROM VVV eXCEPT SELECT * FROM VVV" { }
+
+  11 "SELECT * FROM VVV eXCEPT SELECT 'a', 'b'" { 123 {} c d }
+
+} {
+  set q1 [string map [list VVV $VVV] $q]
+  set q2 [string map [list VVV $VVV2] $q]
+  set q3 "WITH VVV AS $VVV $q"
+
+  do_execsql_test 8.1.$tn.1 $q1 $res
+  do_execsql_test 8.1.$tn.2 $q2 $res
+  do_execsql_test 8.1.$tn.3 $q3 $res
+}
+
+#-------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 9.1 {
+  VALUES(456), (123), (NULL) UNION ALL SELECT 122 ORDER BY 1
+} { {} 122 123 456 }
+
+do_execsql_test 9.2 {
+  VALUES (1, 2), (3, 4), (
+    ( SELECT column1 FROM ( VALUES (5, 6), (7, 8) ) ),
+    ( SELECT max(column2) FROM ( VALUES (5, 1), (7, 6) ) )
+  )
+} { 1 2 3 4 5 6 }
+
+do_execsql_test 10.1 {
+  CREATE TABLE a2(a, b, c DEFAULT 'xyz');
+}
+do_execsql_test 10.2 {
+  INSERT INTO a2(a) VALUES(3),(4);
+}
+
+#-------------------------------------------------------------------------
+reset_db
+ifcapable fts3 {
+  do_execsql_test 11.0 {
+    CREATE VIRTUAL TABLE ft USING fts3(x);
+  }
+  do_execsql_test 11.1 {
+    INSERT INTO ft VALUES('one'), ('two');
+  }
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 12.0 {
+  CREATE TABLE t1(a, b);
+}
+do_execsql_test 12.1 {
+  INSERT INTO t1 SELECT 1, 2 UNION ALL VALUES(3, 4), (5, 6);
+}
+do_execsql_test 12.2 {
+  SELECT * FROM t1
+} {1 2 3 4 5 6}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 13.0 {
+  CREATE TABLE t1(x);
+  INSERT INTO t1 VALUES('xyz');
+
+  SELECT (
+      VALUES( (max(substr('abc', 1, 1), x)) ),
+      (123),
+      (456)
+      )
+  FROM t1;
+} {xyz}
+
+do_catchsql_test 13.1 {
+  VALUES(300), (zeroblob(300) OVER win);
+} {1 {zeroblob() may not be used as a window function}}
+
+#--------------------------------------------------------------------------
+reset_db
+do_execsql_test 14.1 {
+  PRAGMA encoding = utf16;
+  CREATE TABLE t1(a, b);
+} {}
+
+db close
+sqlite3 db test.db
+
+do_execsql_test 14.2 {
+  INSERT INTO t1 VALUES
+    (17, 'craft'),
+    (16, 'urtlek' IN(1,2,3));
+}
+
+#--------------------------------------------------------------------------
+#
+reset_db
+do_eqp_test 15.1 {
+  VALUES(1),(2),(3),(4),(5);
+} {
+  QUERY PLAN
+  `--SCAN 5-ROW VALUES CLAUSE
+}
+do_execsql_test 15.2 {
+  CREATE TABLE t1(a,b);
+}
+do_eqp_test 15.3 {
+  INSERT INTO t1 VALUES
+    (1,2),(3,4),(7,8);
+} {
+  QUERY PLAN
+  `--SCAN 3-ROW VALUES CLAUSE
+}
+do_eqp_test 15.4 {
+  INSERT INTO t1 VALUES
+    (1,2),(3,4),(7,8),
+    (5,row_number()OVER());
+} {
+  QUERY PLAN
+  `--COMPOUND QUERY
+     |--LEFT-MOST SUBQUERY
+     |  `--SCAN 3-ROW VALUES CLAUSE
+     `--UNION ALL
+        |--CO-ROUTINE (subquery-xxxxxx)
+        |  `--SCAN CONSTANT ROW
+        `--SCAN (subquery-xxxxxx)
+}
+do_eqp_test 15.5 {
+  SELECT * FROM (VALUES(1),(2),(3),(4),(5),(6)), (VALUES('a'),('b'),('c'));
+} {
+  QUERY PLAN
+  |--SCAN 6-ROW VALUES CLAUSE
+  `--SCAN 3-ROW VALUES CLAUSE
+}
+do_execsql_test 15.6 {
+  CREATE TABLE t2(x,y);
+}
+do_eqp_test 15.7 {
+  SELECT * FROM t2 UNION ALL VALUES(1,2),(3,4),(5,6),(7,8);
+} {
+  QUERY PLAN
+  `--COMPOUND QUERY
+     |--LEFT-MOST SUBQUERY
+     |  `--SCAN t2
+     `--UNION ALL
+        `--SCAN 4-ROW VALUES CLAUSE
+}
+
+#--------------------------------------------------------------------------
+# The VALUES-as-coroutine optimization can be applied to later rows of
+# a VALUES clause even if earlier rows do not qualify.
+#
+reset_db
+do_execsql_test 16.1 {
+  CREATE TABLE t1(a,b);
+}
+do_execsql_test 16.2 {
+  BEGIN;
+  INSERT INTO t1 VALUES(1,2),(3,4),(5,6),
+     (7,row_number()OVER()),
+     (9,10), (11,12), (13,14), (15,16);
+  SELECT * FROM t1 ORDER BY a, b;
+  ROLLBACK;
+} {1 2 3 4 5 6 7 1 9 10 11 12 13 14 15 16}
+do_eqp_test 16.3 {
+  INSERT INTO t1 VALUES(1,2),(3,4),(5,6),
+     (7,row_number()OVER()),
+     (9,10), (11,12), (13,14), (15,16);
+} {
+  QUERY PLAN
+  `--COMPOUND QUERY
+     |--LEFT-MOST SUBQUERY
+     |  `--SCAN 3-ROW VALUES CLAUSE
+     |--UNION ALL
+     |  |--CO-ROUTINE (subquery-xxxxxx)
+     |  |  `--SCAN CONSTANT ROW
+     |  `--SCAN (subquery-xxxxxx)
+     `--UNION ALL
+        `--SCAN 4-ROW VALUES CLAUSE
+}
+do_execsql_test 16.4 {
+  BEGIN;
+  INSERT INTO t1 VALUES
+     (1,row_number()OVER()),
+     (2,3), (4,5), (6,7);
+  SELECT * FROM t1 ORDER BY a, b;
+  ROLLBACK;
+} {1 1 2 3 4 5 6 7}
+do_eqp_test 16.5 {
+  INSERT INTO t1 VALUES
+     (1,row_number()OVER()),
+     (2,3), (4,5), (6,7);
+} {
+  QUERY PLAN
+  `--COMPOUND QUERY
+     |--LEFT-MOST SUBQUERY
+     |  |--CO-ROUTINE (subquery-xxxxxx)
+     |  |  `--SCAN CONSTANT ROW
+     |  `--SCAN (subquery-xxxxxx)
+     `--UNION ALL
+        `--SCAN 3-ROW VALUES CLAUSE
+}
+do_execsql_test 16.6 {
+  BEGIN;
+  INSERT INTO t1 VALUES
+     (1,2),(3,4),
+     (5,row_number()OVER()),
+     (7,8),(9,10),(11,12),
+     (13,row_number()OVER()),
+     (15,16),(17,18),(19,20),(21,22);
+  SELECT * FROM t1 ORDER BY a, b;
+  ROLLBACK;
+} { 1 2 3 4 5 1 7 8 9 10 11 12 13 1 15 16 17 18 19 20 21 22}
+do_eqp_test 16.7 {
+  INSERT INTO t1 VALUES
+     (1,2),(3,4),
+     (5,row_number()OVER()),
+     (7,8),(9,10),(11,12),
+     (13,row_number()OVER()),
+     (15,16),(17,18),(19,20),(21,22);
+} {
+  QUERY PLAN
+  `--COMPOUND QUERY
+     |--LEFT-MOST SUBQUERY
+     |  `--SCAN 2-ROW VALUES CLAUSE
+     |--UNION ALL
+     |  |--CO-ROUTINE (subquery-xxxxxx)
+     |  |  `--SCAN CONSTANT ROW
+     |  `--SCAN (subquery-xxxxxx)
+     |--UNION ALL
+     |  `--SCAN 3-ROW VALUES CLAUSE
+     |--UNION ALL
+     |  |--CO-ROUTINE (subquery-xxxxxx)
+     |  |  `--SCAN CONSTANT ROW
+     |  `--SCAN (subquery-xxxxxx)
+     `--UNION ALL
+        `--SCAN 4-ROW VALUES CLAUSE
+}
+
+#--------------------------------------------------------------------------
+# 2024-03-23 dbsqlfuzz crash-c2c5e7e08b7e489d270a26d895077a03f678c33b
+#
+do_execsql_test 17.1 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1 AS SELECT * FROM (VALUES(1,2), (3,4 IN (1,2,3)));
+}
+
+do_execsql_test 17.2 {
+  SELECT * FROM t1
+} {1 2 3 0}
+
+# 2024-03-25 dbsqlfuzz crash-74cf7c9904360322a6c917e4934b127543d1cd51
+#
+do_catchsql_test 18.1 {
+  DROP TABLE t1;
+  CREATE TABLE t1(x INTEGER PRIMARY KEY);
+  INSERT INTO t1 VALUES(RAISE(IGNORE)),(0);
+} {1 {RAISE() may only be used within a trigger-program}}
+do_catchsql_test 18.2 {
+  DROP TABLE t1;
+  CREATE TABLE t1(x INTEGER PRIMARY KEY, y, z);
+  CREATE TRIGGER r2 AFTER INSERT ON t1 BEGIN
+    INSERT INTO t1(y) VALUES(RAISE(IGNORE)),(0);
+  END;
+  INSERT INTO t1 VALUES(1,2,3);
+  SELECT * FROM t1;
+} {0 {1 2 3}}
+do_catchsql_test 18.3.1 {
+  DROP TABLE t1;
+  CREATE TABLE t1(x INTEGER PRIMARY KEY, y, z);
+  CREATE TRIGGER r2 AFTER INSERT ON t1 BEGIN
+    INSERT INTO t1(y) VALUES(RAISE(ABORT,'error 18.3')),(0);
+  END;
+  INSERT INTO t1 VALUES(1,2,3);
+} {1 {error 18.3}}
+do_execsql_test 18.3.2 {
+  SELECT * FROM t1;
+} {}
+do_catchsql_test 18.4.1 {
+  DROP TABLE t1;
+  CREATE TABLE t1(x INTEGER PRIMARY KEY, y, z);
+  CREATE TRIGGER r2 AFTER INSERT ON t1 BEGIN
+    INSERT INTO t1(y) VALUES(1),(RAISE(ABORT,'error 18.4')),(0);
+  END;
+  INSERT INTO t1 VALUES(1,2,3);
+} {1 {error 18.4}}
+do_execsql_test 18.4.2 {
+  SELECT * FROM t1;
+} {}
+do_catchsql_test 18.5.1 {
+  DROP TABLE t1;
+  CREATE TABLE t1(x INTEGER PRIMARY KEY, y, z);
+  CREATE TRIGGER r2 AFTER INSERT ON t1 BEGIN
+    INSERT INTO t1(y) VALUES(1),
+       (CASE WHEN new.z>7 THEN RAISE(ABORT,'error 18.5') ELSE 2 END);
+  END;
+  INSERT INTO t1 VALUES(1,2,3);
+  SELECT * FROM t1;
+} {0 {1 2 3 2 1 {} 3 2 {}}}
+do_catchsql_test 18.5.2 {
+  DELETE FROM t1;
+  INSERT INTO t1 VALUES(1,2,13);
+} {1 {error 18.5}}
+do_catchsql_test 18.5.3 {
+  SELECT * FROM t1;
+} {0 {}}
+
+# 2024-04-18 dbsqlfuzz crash-bde3bf80aedf25afa56e2997a0545a314765d3f8
+# Verify that the VALUES expressions used as an argument to an outer
+# join work correctly.
+#
+reset_db
+db null NULL
+do_execsql_test 19.1 {
+  CREATE TABLE t1(a INT, b INT);
+  INSERT INTO t1 VALUES(11,22);
+  SELECT * FROM t1 LEFT JOIN (VALUES(33,44),(55,66)) AS t2 ON a=b;
+} {11 22 NULL NULL}
+do_execsql_test 19.2 {
+  SELECT * FROM (VALUES(33,44),(55,66)) AS t2 RIGHT JOIN t1 ON a=b;
+} {NULL NULL 11 22}
+do_execsql_test 19.3 {
+  SELECT *, '|' FROM t1 FULL JOIN (VALUES(33,44),(55,66)) AS t2 ON a=b
+  ORDER BY +column1
+} {11 22 NULL NULL | NULL NULL 33 44 | NULL NULL 55 66 |}
+do_execsql_test 19.4 {
+  SELECT *, '|' FROM (VALUES(33,44),(55,66)) AS t2 FULL JOIN t1 ON a=b
+  ORDER BY +column1
+} {NULL NULL 11 22 | 33 44 NULL NULL | 55 66 NULL NULL |}
+
+# 2024-04-21 dbsqlfuzz 6fd1ff3a64bef4a6c092e8d757548e95698b0df5
+# A continuation of the 2024-04-18 problem above.  We have to create
+# Pseudo-cursor that is always NULL on the viaCoroutine loop in case
+# there are OP_Columns generated against it by the sub-WHERE clause.
+#
+db null N
+do_execsql_test 19.5 {
+  DROP TABLE IF EXISTS t1;
+  DROP TABLE IF EXISTS t2;
+  DROP TABLE IF EXISTS t3;
+  CREATE TABLE t1(a,b);              INSERT INTO t1 VALUES(1,2);
+  CREATE TABLE t2(column1,column2);  INSERT INTO t2 VALUES(11,22),(33,44);
+  CREATE TABLE t3(d,e);              INSERT INTO t3 VALUES(3,4);
+}
+do_execsql_test 19.6 {
+  -- output verify using PG 14.2
+  SELECT *
+    FROM t1 CROSS JOIN t2 FULL JOIN t3 ON a=d
+   ORDER BY +d, +column1;
+} {1 2 11 22 N N
+   1 2 33 44 N N
+   N N  N  N 3 4}
+do_execsql_test 19.7 {
+  SELECT *
+    FROM t1 CROSS JOIN (VALUES(11,22),(33,44)) FULL JOIN t3 ON a=d
+   ORDER BY +d, +column1;
+} {1 2 11 22 N N
+   1 2 33 44 N N
+   N N  N  N 3 4}
+do_execsql_test 19.8 {
+  -- output verified using PG 14.2
+  SELECT *
+    FROM t1 CROSS JOIN t2 FULL JOIN t3 ON a=d
+   WHERE column1 IS NULL;
+} {N N  N  N 3 4}
+do_execsql_test 19.9 {
+  SELECT *
+    FROM t1 CROSS JOIN (VALUES(11,22),(33,44)) FULL JOIN t3 ON a=d
+   WHERE column1 IS NULL;
+} {N N  N  N 3 4}
+
+finish_test
diff --git a/test/valuesfault.test b/test/valuesfault.test
new file mode 100644
index 0000000000000000000000000000000000000000..bc5dddfb0e650262be45424dfc22b1b20d8963ff
--- /dev/null
+++ b/test/valuesfault.test
@@ -0,0 +1,37 @@
+# 2024 March 3
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix valuesfault
+source $testdir/malloc_common.tcl
+
+
+do_execsql_test 1.0 {
+  CREATE TABLE x1(a, b, c);
+}
+faultsim_save_and_close
+
+do_faultsim_test 1 -prep {
+  faultsim_restore_and_reopen
+  sqlite3_limit db SQLITE_LIMIT_COMPOUND_SELECT 2
+} -body {
+  execsql {
+    INSERT INTO x1 VALUES(1, 1, 1), (2, 2, 2), (3, 3, 3), (4, 4, 4);
+  }
+} -test {
+  faultsim_test_result {0 {}} 
+}
+
+
+finish_test
diff --git a/test/varint.test b/test/varint.test
new file mode 100644
index 0000000000000000000000000000000000000000..fd0ec0d4155db75e11ecf1f0acb44baec2f4e4c5
--- /dev/null
+++ b/test/varint.test
@@ -0,0 +1,34 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is variable-length integer encoding scheme.
+#
+# $Id: varint.test,v 1.1 2004/05/18 15:57:42 drh Exp $
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Test reading and writing of varints.
+#
+set cnt 0
+foreach start {0 100 10000 1000000 0x10000000} {
+  foreach mult {1 0x10 0x100 0x1000 0x10000 0x100000 0x1000000 0x10000000} {
+    foreach incr {1 500 10000 50000000} {
+      incr cnt
+      do_test varint-1.$cnt {
+        btree_varint_test $start $mult 5000 $incr
+      } {}
+    }
+  }
+}
+
+finish_test
diff --git a/test/veryquick.test b/test/veryquick.test
new file mode 100644
index 0000000000000000000000000000000000000000..c8d6ce8f8bf8351b25d10ae002c3eb93939e20fb
--- /dev/null
+++ b/test/veryquick.test
@@ -0,0 +1,18 @@
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file runs all the tests run by quick.test except for those related
+# to malloc or IO error simulation. With these tests omitted, the overall
+# run time is reduced by about 75%.
+#
+# $Id: veryquick.test,v 1.9 2008/07/12 14:52:21 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/permutations.test
+
+run_test_suite veryquick
+
+finish_test
diff --git a/test/view.test b/test/view.test
new file mode 100644
index 0000000000000000000000000000000000000000..241742025cd4096f7606cdd7c9f2cda828e51895
--- /dev/null
+++ b/test/view.test
@@ -0,0 +1,827 @@
+# 2002 February 26
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing VIEW statements.
+#
+# $Id: view.test,v 1.39 2008/12/14 14:45:21 danielk1977 Exp $
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Omit this entire file if the library is not configured with views enabled.
+ifcapable !view {
+  finish_test
+  return
+}
+
+do_test view-1.0 {
+  execsql {
+    CREATE TABLE t1(a,b,c);
+    INSERT INTO t1 VALUES(1,2,3);
+    INSERT INTO t1 VALUES(4,5,6);
+    INSERT INTO t1 VALUES(7,8,9);
+    SELECT * FROM t1;
+  }
+} {1 2 3 4 5 6 7 8 9}
+
+do_test view-1.1 {
+  execsql {
+    BEGIN;
+    CREATE VIEW IF NOT EXISTS v1 AS SELECT a,b FROM t1;
+    SELECT * FROM v1 ORDER BY a;
+  }
+} {1 2 4 5 7 8}
+do_test view-1.1.100 {
+  db config enable_view off
+  catchsql {
+    SELECT * FROM v1 ORDER BY a;
+  }
+} {1 {access to view "v1" prohibited}}
+do_execsql_test view-1.1.101 {
+  CREATE TEMP VIEW v1temp AS SELECT a, b FROM t1;
+  SELECT * FROM v1temp ORDER BY a;
+} {1 2 4 5 7 8}
+do_test view-1.1.110 {
+  db config enable_view on
+  catchsql {
+    SELECT * FROM v1 ORDER BY a;
+    SELECT * FROM v1temp ORDER BY a;
+  }
+} {0 {1 2 4 5 7 8 1 2 4 5 7 8}}
+ifcapable vtab {
+  do_execsql_test view-1.1.120 {
+    SELECT name, type FROM pragma_table_list('v1');
+  } {v1 view}
+}
+do_test view-1.2 {
+  catchsql {
+    ROLLBACK;
+    SELECT * FROM v1 ORDER BY a;
+  }
+} {1 {no such table: v1}}
+do_test view-1.3 {
+  execsql {
+    CREATE VIEW v1 AS SELECT a,b FROM t1;
+    SELECT * FROM v1 ORDER BY a;
+  }
+} {1 2 4 5 7 8}
+do_test view-1.3.1 {
+  db close
+  sqlite3 db test.db
+  execsql {
+    SELECT * FROM v1 ORDER BY a;
+  }
+} {1 2 4 5 7 8}
+do_test view-1.4 {
+  catchsql {
+    DROP VIEW IF EXISTS v1;
+    SELECT * FROM v1 ORDER BY a;
+  }
+} {1 {no such table: v1}}
+do_test view-1.5 {
+  execsql {
+    CREATE VIEW v1 AS SELECT a,b FROM t1;
+    SELECT * FROM v1 ORDER BY a;
+  }
+} {1 2 4 5 7 8}
+do_test view-1.6 {
+  catchsql {
+    DROP TABLE t1;
+    SELECT * FROM v1 ORDER BY a;
+  }
+} {1 {no such table: main.t1}}
+do_test view-1.7 {
+  execsql {
+    CREATE TABLE t1(x,a,b,c);
+    INSERT INTO t1 VALUES(1,2,3,4);
+    INSERT INTO t1 VALUES(4,5,6,7);
+    INSERT INTO t1 VALUES(7,8,9,10);
+    SELECT * FROM v1 ORDER BY a;
+  }
+} {2 3 5 6 8 9}
+do_test view-1.8 {
+  db close
+  sqlite3 db test.db
+  execsql {
+    SELECT * FROM v1 ORDER BY a;
+  }
+} {2 3 5 6 8 9}
+
+do_execsql_test view-1.10 {
+  CREATE TABLE t9(x INTEGER);
+  CREATE VIEW v9a AS SELECT x FROM t9;
+  CREATE VIEW v9b AS SELECT * FROM t9;
+  CREATE VIEW v9c(x) AS SELECT x FROM t9;
+  CREATE VIEW v9d(x) AS SELECT * FROM t9;
+} {}
+do_execsql_test view-1.11 {
+  PRAGMA table_info(v9a);
+} {0 x INTEGER 0 {} 0}
+do_execsql_test view-1.12 {
+  PRAGMA table_info(v9b);
+} {0 x INTEGER 0 {} 0}
+do_execsql_test view-1.13 {
+  PRAGMA table_info(v9c);
+} {0 x INTEGER 0 {} 0}
+do_execsql_test view-1.14 {
+  PRAGMA table_info(v9d);
+} {0 x INTEGER 0 {} 0}
+
+do_test view-2.1 {
+  execsql {
+    CREATE VIEW v2 AS SELECT * FROM t1 WHERE a>5
+  };  # No semicolon
+  execsql2 {
+    SELECT * FROM v2;
+  }
+} {x 7 a 8 b 9 c 10}
+do_test view-2.2 {
+  catchsql {
+    INSERT INTO v2 VALUES(1,2,3,4);
+  }
+} {1 {cannot modify v2 because it is a view}}
+do_test view-2.3 {
+  catchsql {
+    UPDATE v2 SET a=10 WHERE a=5;
+  }
+} {1 {cannot modify v2 because it is a view}}
+do_test view-2.4 {
+  catchsql {
+    DELETE FROM v2;
+  }
+} {1 {cannot modify v2 because it is a view}}
+do_test view-2.5 {
+  execsql {
+    INSERT INTO t1 VALUES(11,12,13,14);
+    SELECT * FROM v2 ORDER BY x;
+  }
+} {7 8 9 10 11 12 13 14}
+do_test view-2.6 {
+  execsql {
+    SELECT x FROM v2 WHERE a>10
+  }
+} {11}
+
+# Test that column name of views are generated correctly.
+#
+do_test view-3.1 {
+  execsql2 {
+    SELECT * FROM v1 LIMIT 1
+  }
+} {a 2 b 3}
+do_test view-3.2 {
+  execsql2 {
+    SELECT * FROM v2 LIMIT 1
+  }
+} {x 7 a 8 b 9 c 10}
+do_test view-3.3.1 {
+  execsql2 {
+    DROP VIEW v1;
+    CREATE VIEW v1 AS SELECT a AS 'xyz', b+c AS 'pqr', c-b FROM t1;
+    SELECT * FROM v1 LIMIT 1
+  }
+} {xyz 2 pqr 7 c-b 1}
+do_test view-3.3.2 {
+  execsql2 {
+    CREATE VIEW v1b AS SELECT t1.a, b+c, t1.c FROM t1;
+    SELECT * FROM v1b LIMIT 1
+  }
+} {a 2 b+c 7 c 4}
+do_test view-3.3.3 {
+  execsql2 {
+    CREATE VIEW v1c(x,y,z) AS SELECT a, b+c, c-b FROM t1;
+    SELECT * FROM v1c LIMIT 1;
+  }
+} {x 2 y 7 z 1}
+do_catchsql_test view-3.3.4 {
+  CREATE VIEW v1err(x,y DESC,z) AS SELECT a, b+c, c-b FROM t1;
+} {1 {syntax error after column name "y"}}
+do_catchsql_test view-3.3.5 {
+  DROP VIEW IF EXISTS v1err;
+  CREATE VIEW v1err(x,y) AS SELECT a, b+c, c-b FROM t1;
+  SELECT * FROM v1err;
+} {1 {expected 2 columns for 'v1err' but got 3}}
+do_catchsql_test view-3.3.6 {
+  DROP VIEW IF EXISTS v1err;
+  CREATE VIEW v1err(w,x,y,z) AS SELECT a, b+c, c-b FROM t1;
+  SELECT * FROM v1err;
+} {1 {expected 4 columns for 'v1err' but got 3}}
+
+ifcapable compound {
+do_test  view-3.4 {
+  execsql2 {
+    CREATE VIEW v3 AS SELECT a FROM t1 UNION SELECT b FROM t1 ORDER BY b;
+    SELECT * FROM v3 LIMIT 4;
+  }
+} {a 2 a 3 a 5 a 6}
+do_test view-3.5 {
+  execsql2 {
+    CREATE VIEW v4 AS 
+      SELECT a, b FROM t1 
+      UNION
+      SELECT b AS 'x', a AS 'y' FROM t1
+      ORDER BY x, y;
+    SELECT b FROM v4 ORDER BY b LIMIT 4;
+  }
+} {b 2 b 3 b 5 b 6}
+} ;# ifcapable compound
+
+
+do_test view-4.1 {
+  catchsql {
+    DROP VIEW t1;
+  }
+} {1 {use DROP TABLE to delete table t1}}
+do_test view-4.2 {
+  execsql {
+    SELECT 1 FROM t1 LIMIT 1;
+  }
+} 1
+do_test view-4.3 {
+  catchsql {
+    DROP TABLE v1;
+  }
+} {1 {use DROP VIEW to delete view v1}}
+do_test view-4.4 {
+  execsql {
+     SELECT 1 FROM v1 LIMIT 1;
+  }
+} {1}
+do_test view-4.5 {
+  catchsql {
+    CREATE INDEX i1v1 ON v1(xyz);
+  }
+} {1 {views may not be indexed}}
+
+do_test view-5.1 {
+  execsql {
+    CREATE TABLE t2(y,a);
+    INSERT INTO t2 VALUES(22,2);
+    INSERT INTO t2 VALUES(33,3);
+    INSERT INTO t2 VALUES(44,4);
+    INSERT INTO t2 VALUES(55,5);
+    SELECT * FROM t2;
+  }
+} {22 2 33 3 44 4 55 5}
+do_test view-5.2 {
+  execsql {
+    CREATE VIEW v5 AS
+      SELECT t1.x AS v, t2.y AS w FROM t1 JOIN t2 USING(a);
+    SELECT * FROM v5;
+  }
+} {1 22 4 55}
+
+# Verify that the view v5 gets flattened.  see sqliteFlattenSubquery().
+# This will only work if EXPLAIN is enabled.
+# Ticket #272
+#
+ifcapable {explain} {
+do_test view-5.3 {
+  lsearch [execsql {
+    EXPLAIN SELECT * FROM v5;
+  }] OpenEphemeral
+} {-1}
+do_test view-5.4 {
+  execsql {
+    SELECT * FROM v5 AS a, t2 AS b WHERE a.w=b.y;
+  }
+} {1 22 22 2 4 55 55 5}
+do_test view-5.5 {
+  lsearch [execsql {
+    EXPLAIN SELECT * FROM v5 AS a, t2 AS b WHERE a.w=b.y;
+  }] OpenEphemeral
+} {-1}
+do_test view-5.6 {
+  execsql {
+    SELECT * FROM t2 AS b, v5 AS a WHERE a.w=b.y;
+  }
+} {22 2 1 22 55 5 4 55}
+do_test view-5.7 {
+  lsearch [execsql {
+    EXPLAIN SELECT * FROM t2 AS b, v5 AS a WHERE a.w=b.y;
+  }] OpenEphemeral
+} {-1}
+do_test view-5.8 {
+  execsql {
+    SELECT * FROM t1 AS a, v5 AS b, t2 AS c WHERE a.x=b.v AND b.w=c.y;
+  }
+} {1 2 3 4 1 22 22 2 4 5 6 7 4 55 55 5}
+do_test view-5.9 {
+  lsearch [execsql {
+    EXPLAIN SELECT * FROM t1 AS a, v5 AS b, t2 AS c WHERE a.x=b.v AND b.w=c.y;
+  }] OpenEphemeral
+} {-1}
+} ;# endif explain
+
+do_test view-6.1 {
+  execsql {
+    SELECT min(x), min(a), min(b), min(c), min(a+b+c) FROM v2;
+  }
+} {7 8 9 10 27}
+do_test view-6.2 {
+  execsql {
+    SELECT max(x), max(a), max(b), max(c), max(a+b+c) FROM v2;
+  }
+} {11 12 13 14 39}
+
+do_test view-7.1 {
+  execsql {
+    CREATE TABLE test1(id integer primary key, a);
+    CREATE TABLE test2(id integer, b);
+    INSERT INTO test1 VALUES(1,2);
+    INSERT INTO test2 VALUES(1,3);
+    CREATE VIEW test AS
+      SELECT test1.id, a, b
+      FROM test1 JOIN test2 ON test2.id=test1.id;
+    SELECT * FROM test;
+  }
+} {1 2 3}
+do_test view-7.2 {
+  db close
+  sqlite3 db test.db
+  execsql {
+    SELECT * FROM test;
+  }
+} {1 2 3}
+do_test view-7.3 {
+  execsql {
+    DROP VIEW test;
+    CREATE VIEW test AS
+      SELECT test1.id, a, b
+      FROM test1 JOIN test2 USING(id);
+    SELECT * FROM test;
+  }
+} {1 2 3}
+do_test view-7.4 {
+  db close
+  sqlite3 db test.db
+  execsql {
+    SELECT * FROM test;
+  }
+} {1 2 3}
+do_test view-7.5 {
+  execsql {
+    DROP VIEW test;
+    CREATE VIEW test AS
+      SELECT test1.id, a, b
+      FROM test1 NATURAL JOIN test2;
+    SELECT * FROM test;
+  }
+} {1 2 3}
+do_test view-7.6 {
+  db close
+  sqlite3 db test.db
+  execsql {
+    SELECT * FROM test;
+  }
+} {1 2 3}
+
+do_test view-8.1 {
+  execsql {
+    CREATE VIEW v6 AS SELECT pqr, xyz FROM v1;
+    SELECT * FROM v6 ORDER BY xyz;
+  }
+} {7 2 13 5 19 8 27 12}
+do_test view-8.2 {
+  db close
+  sqlite3 db test.db
+  execsql {
+    SELECT * FROM v6 ORDER BY xyz;
+  }
+} {7 2 13 5 19 8 27 12}
+do_test view-8.3 {
+  execsql {
+    CREATE VIEW v7(a) AS SELECT pqr+xyz FROM v6;
+    SELECT * FROM v7 ORDER BY a;
+  }
+} {9 18 27 39}
+
+ifcapable subquery {
+  do_test view-8.4 {
+    execsql {
+      CREATE VIEW v8 AS SELECT max(cnt) AS mx FROM
+        (SELECT a%2 AS eo, count(*) AS cnt FROM t1 GROUP BY eo);
+      SELECT * FROM v8;
+    }
+  } 3
+  do_test view-8.5 {
+    execsql {
+      SELECT mx+10, mx*2 FROM v8;
+    }
+  } {13 6}
+  do_test view-8.6 {
+    execsql {
+      SELECT mx+10, pqr FROM v6, v8 WHERE xyz=2;
+    }
+  } {13 7}
+  do_test view-8.7 {
+    execsql {
+      SELECT mx+10, pqr FROM v6, v8 WHERE xyz>2;
+    }
+  } {13 13 13 19 13 27}
+} ;# ifcapable subquery
+
+# Tests for a bug found by Michiel de Wit involving ORDER BY in a VIEW.
+#
+do_test view-9.1 {
+  execsql {
+    INSERT INTO t2 SELECT * FROM t2 WHERE a<5;
+    INSERT INTO t2 SELECT * FROM t2 WHERE a<4;
+    INSERT INTO t2 SELECT * FROM t2 WHERE a<3;
+    SELECT DISTINCT count(*) FROM t2 GROUP BY a ORDER BY 1;
+  }
+} {1 2 4 8}
+do_test view-9.2 {
+  execsql {
+    SELECT DISTINCT count(*) FROM t2 GROUP BY a ORDER BY 1 LIMIT 3;
+  }
+} {1 2 4}
+do_test view-9.3 {
+  execsql {
+    CREATE VIEW v9 AS 
+       SELECT DISTINCT count(*) FROM t2 GROUP BY a ORDER BY 1 LIMIT 3;
+    SELECT * FROM v9;
+  }
+} {1 2 4}
+do_test view-9.4 {
+  execsql {
+    SELECT * FROM v9 ORDER BY 1 DESC;
+  }
+} {4 2 1}
+do_test view-9.5 {
+  execsql {
+    CREATE VIEW v10 AS 
+       SELECT DISTINCT a, count(*) FROM t2 GROUP BY a ORDER BY 2 LIMIT 3;
+    SELECT * FROM v10;
+  }
+} {5 1 4 2 3 4}
+do_test view-9.6 {
+  execsql {
+    SELECT * FROM v10 ORDER BY 1;
+  }
+} {3 4 4 2 5 1}
+
+# Tables with columns having peculiar quoted names used in views
+# Ticket #756.
+#
+do_test view-10.1 {
+  execsql {
+    CREATE TABLE t3("9" integer, [4] text);
+    INSERT INTO t3 VALUES(1,2);
+    CREATE VIEW v_t3_a AS SELECT a.[9] FROM t3 AS a;
+    CREATE VIEW v_t3_b AS SELECT "4" FROM t3;
+    SELECT * FROM v_t3_a;
+  }
+} {1}
+do_test view-10.2 {
+  execsql {
+    SELECT * FROM v_t3_b;
+  }
+} {2}
+
+do_test view-11.1 {
+  execsql {
+    CREATE TABLE t4(a COLLATE NOCASE);
+    INSERT INTO t4 VALUES('This');
+    INSERT INTO t4 VALUES('this');
+    INSERT INTO t4 VALUES('THIS');
+    SELECT * FROM t4 WHERE a = 'THIS';
+  }
+} {This this THIS}
+ifcapable subquery {
+  do_test view-11.2 {
+    execsql {
+      SELECT * FROM (SELECT * FROM t4) WHERE a = 'THIS';
+    }
+  } {This this THIS}
+}
+do_test view-11.3 {
+  execsql {
+    CREATE VIEW v11 AS SELECT * FROM t4;
+    SELECT * FROM v11 WHERE a = 'THIS';
+  }
+} {This this THIS}
+
+# Ticket #1270:  Do not allow parameters in view definitions.
+#
+do_test view-12.1 {
+  catchsql {
+    CREATE VIEW v12 AS SELECT a FROM t1 WHERE b=?
+  }
+} {1 {parameters are not allowed in views}}
+do_test view-12.2 {
+  catchsql {
+    CREATE VIEW v12(x) AS SELECT a FROM t1 WHERE b=?
+  }
+} {1 {parameters are not allowed in views}}
+
+ifcapable attach {
+  do_test view-13.1 {
+    forcedelete test2.db
+    catchsql {
+      ATTACH 'test2.db' AS two;
+      CREATE TABLE two.t2(x,y);
+      CREATE VIEW v13 AS SELECT y FROM two.t2;
+    }
+  } {1 {view v13 cannot reference objects in database two}}
+}
+
+# Ticket #1658
+#
+do_test view-14.1 {
+  catchsql {
+    CREATE TEMP VIEW t1 AS SELECT a,b FROM t1;
+    SELECT * FROM temp.t1;
+  }
+} {1 {view t1 is circularly defined}}
+do_test view-14.2 {
+  catchsql {
+    DROP VIEW IF EXISTS temp.t1;
+    CREATE TEMP VIEW t1(a,b) AS SELECT a,b FROM t1;
+    SELECT * FROM temp.t1;
+  }
+} {1 {view t1 is circularly defined}}
+
+# Tickets #1688, #1709
+#
+do_test view-15.1 {
+  execsql2 {
+    CREATE VIEW v15 AS SELECT a AS x, b AS y FROM t1;
+    SELECT * FROM v15 LIMIT 1;
+  }
+} {x 2 y 3}
+do_test view-15.2 {
+  execsql2 {
+    SELECT x, y FROM v15 LIMIT 1
+  }
+} {x 2 y 3}
+
+do_test view-16.1 {
+  catchsql {
+    CREATE VIEW IF NOT EXISTS v1 AS SELECT * FROM t1;
+  }
+} {0 {}}
+do_test view-16.2 {
+  execsql {
+    SELECT sql FROM sqlite_master WHERE name='v1'
+  }
+} {{CREATE VIEW v1 AS SELECT a AS 'xyz', b+c AS 'pqr', c-b FROM t1}}
+do_test view-16.3 {
+  catchsql {
+    DROP VIEW IF EXISTS nosuchview
+  }
+} {0 {}}
+
+# correct error message when attempting to drop a view that does not
+# exist.
+#
+do_test view-17.1 {
+  catchsql {
+    DROP VIEW nosuchview
+  }
+} {1 {no such view: nosuchview}}
+do_test view-17.2 {
+  catchsql {
+    DROP VIEW main.nosuchview
+  }
+} {1 {no such view: main.nosuchview}}
+
+do_test view-18.1 {
+  execsql {
+    DROP VIEW t1;
+    DROP TABLE t1;
+    CREATE TABLE t1(a, b, c);
+    INSERT INTO t1 VALUES(1, 2, 3);
+    INSERT INTO t1 VALUES(4, 5, 6);
+
+    CREATE VIEW vv1 AS SELECT * FROM t1;
+    CREATE VIEW vv2 AS SELECT * FROM vv1;
+    CREATE VIEW vv3 AS SELECT * FROM vv2;
+    CREATE VIEW vv4 AS SELECT * FROM vv3;
+    CREATE VIEW vv5 AS SELECT * FROM vv4;
+
+    SELECT * FROM vv5;
+  }
+} {1 2 3 4 5 6}
+
+# Ticket #3308
+# Make sure "rowid" columns in a view are named correctly.
+#
+do_test view-19.1 {
+  execsql {
+    CREATE VIEW v3308a AS SELECT rowid, * FROM t1;
+  }
+  execsql2 {
+    SELECT * FROM v3308a
+  }
+} {rowid 1 a 1 b 2 c 3 rowid 2 a 4 b 5 c 6}
+do_test view-19.2 {
+  execsql {
+    CREATE VIEW v3308b AS SELECT t1.rowid, t1.a, t1.b+t1.c FROM t1;
+  }
+  execsql2 {
+    SELECT * FROM v3308b
+  }
+} {rowid 1 a 1 t1.b+t1.c 5 rowid 2 a 4 t1.b+t1.c 11}
+do_test view-19.3 {
+  execsql {
+    CREATE VIEW v3308c AS SELECT t1.oid, A, t1.b+t1.c AS x FROM t1;
+  }
+  execsql2 {
+    SELECT * FROM v3308c
+  }
+} {rowid 1 a 1 x 5 rowid 2 a 4 x 11}
+
+# Ticket #3539 had this crashing (see commit [5940]).
+do_test view-20.1 {
+  execsql {
+    DROP TABLE IF EXISTS t1;
+    DROP VIEW IF EXISTS v1;
+    CREATE TABLE t1(c1);
+    CREATE VIEW v1 AS SELECT c1 FROM (SELECT t1.c1 FROM t1);
+  }
+} {}
+
+db close
+sqlite3 db :memory:
+do_execsql_test view-22.1 {
+  CREATE VIEW x1 AS SELECT 123 AS '', 234 AS '', 345 AS '';
+  SELECT * FROM x1;
+} {123 234 345}
+do_test view-22.2 {
+  unset -nocomplain x
+  db eval {SELECT * FROM x1} x break
+  lsort [array names x]
+} {{} * :1 :2}
+
+do_test view-25.1 {
+  db eval {
+    CREATE TABLE t25 (x);
+    INSERT INTO t25 (x) VALUES (1);
+    ANALYZE;
+  }
+  proc authLogDelete {code arg1 arg2 arg3 arg4 args} {
+    if {$code=="SQLITE_DELETE" && [string match sqlite_stat* $arg1]} {
+      # lappend ::log [list $code $arg1 $arg2 $arg3 $arg4 $args]
+      lappend ::log [list $code $arg1 $arg2 $arg3 $arg4]
+    }
+    return SQLITE_OK
+  }
+  set log ""
+  db authorizer ::authLogDelete
+  db eval {DROP VIEW x1;}
+  set log
+} {}
+
+set res [list {SQLITE_DELETE sqlite_stat1 {} main {}}]
+ifcapable stat4 { lappend res {SQLITE_DELETE sqlite_stat4 {} main {}} }
+do_test view-25.2 {
+  set log ""
+  db eval {DROP TABLE t25;}
+  set log
+} $res
+
+#-------------------------------------------------------------------------
+do_execsql_test view-26.0 {
+  CREATE TABLE t16(a, b, c UNIQUE);
+  INSERT INTO t16 VALUES(1, 1, 1);
+  INSERT INTO t16 VALUES(2, 2, 2);
+  INSERT INTO t16 VALUES(3, 3, 3);
+  CREATE VIEW v16 AS SELECT max(a) AS mx, min(b) AS mn FROM t16 GROUP BY c;
+
+  SELECT * FROM v16 AS one, v16 AS two WHERE one.mx=1;
+} {
+  1 1 1 1 
+  1 1 2 2 
+  1 1 3 3
+}
+do_execsql_test view-26.1 {
+  WITH v17(x,y) AS (SELECT max(a), min(b) FROM t16 GROUP BY c)
+  SELECT * FROM v17 AS one, v17 AS two WHERE one.x=1;
+} {
+  1 1 1 1 
+  1 1 2 2 
+  1 1 3 3
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test view-27.0 {
+  CREATE TABLE t0(c0 TEXT, c1);
+  INSERT INTO t0(c0, c1) VALUES (-1, 0);
+  CREATE VIEW v0(c0, c1) AS SELECT t0.c0, AVG(t0.c1) FROM t0;
+}
+
+do_execsql_test view-27.1 {
+  SELECT c0, typeof(c0), c1, typeof(c1) FROM v0;
+} {
+  -1   text
+   0.0 real
+}
+
+do_execsql_test view-27.2 { SELECT c0<c1 FROM v0 } 1
+do_execsql_test view-27.3 { SELECT c1<c0 FROM v0 } 0
+do_execsql_test view-27.4 {
+  SELECT 1 FROM v0 WHERE c1<c0
+} {}
+do_execsql_test view-27.5 {
+  SELECT 1 FROM v0 WHERE c0<c1
+} {1}
+
+do_execsql_test view-27.6 { 
+  SELECT c0<c1 FROM (SELECT t0.c0 AS c0, AVG(t0.c1) AS c1 FROM t0) 
+} 1
+do_execsql_test view-27.7 { 
+  SELECT c1<c0 FROM (SELECT t0.c0 AS c0, AVG(t0.c1) AS c1 FROM t0) 
+} 0
+do_execsql_test view-27.8 {
+  SELECT 1 FROM (SELECT t0.c0 AS c0, AVG(t0.c1) AS c1 FROM t0) WHERE c1<c0
+} {}
+do_execsql_test view-27.9 {
+  SELECT 1 FROM (SELECT t0.c0 AS c0, AVG(t0.c1) AS c1 FROM t0) WHERE c0<c1
+} {1}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test view-28.0 {
+  CREATE TABLE t0(c0 TEXT);
+  CREATE VIEW v0(c0) AS SELECT t0.c0 FROM t0;
+  INSERT INTO t0(c0) VALUES ('0');
+}
+do_execsql_test view-28.1 {
+  SELECT 0 IN (c0) FROM t0;
+} {0}
+do_execsql_test view-28.2 {
+  SELECT 0 IN (c0) FROM (SELECT c0 FROM t0);
+} {0}
+
+#-------------------------------------------------------------------------
+# 2020-10-26.  https://sqlite.org/forum/forumpost/daa2c728cc
+#
+reset_db
+do_catchsql_test view-29.0 {
+  CREATE TABLE t1(a,b,c);
+  CREATE VIEW IF NOT EXISTS IF AS SELECT null;
+} {1 {malformed database schema (IF) - near "AS": syntax error}}
+do_catchsql_test view-29.1 {
+  CREATE TABLE t2(c,d,e);
+  SELECT name FROM sqlite_schema ORDER BY name;
+} {0 {t1 t2}}
+
+#-------------------------------------------------------------------------
+# 2022-12-11.  https://sqlite.org/src/info/679ed6a2
+#
+# 2022-12-14 change:  If the AS SELECT of a VIEW is a compound where
+# the datatypes on each arm of the compound are different, then the
+# datatype of the overall column is BLOB (ANY).
+#
+reset_db
+do_execsql_test view-30.0 {
+  CREATE TABLE t0(a INT, b TEXT);
+
+  INSERT INTO t0 VALUES(1,'one');
+
+  CREATE VIEW t1      AS SELECT a, b FROM t0 UNION ALL SELECT 2, 2;
+  CREATE VIEW t2(a,b) AS SELECT a, b FROM t0 UNION ALL SELECT 2, 2;
+}
+
+ifcapable schema_pragmas {
+  do_execsql_test view-30.1 {
+    PRAGMA table_info = t1;
+  } { 0 a INT 0 {} 0 1 b BLOB 0 {} 0 }
+  do_execsql_test view-30.2 {
+    PRAGMA table_info = t2;
+  } { 0 a INT 0 {} 0 1 b BLOB 0 {} 0 }
+}
+
+#-----------------------------------------------------------------------
+# 2024-04-25   Trying to make type information on compound subqueries
+# more predictable and rational.
+#
+reset_db
+do_execsql_test view-31.1 {
+  CREATE TABLE x2(b TEXT);
+  CREATE TABLE x1(a TEXT);
+  INSERT INTO x1 VALUES('123');
+  -- Two queries get the same result even though the order of terms
+  -- in the CTE is reversed
+  WITH c(x) AS ( SELECT b FROM x2 UNION SELECT 123 )
+    SELECT count(*) FROM x1 WHERE a IN c; 
+  WITH c(x) AS ( SELECT 123 UNION SELECT b FROM x2 )
+    SELECT count(*) FROM x1 WHERE a IN c;
+} {0 0}
+do_execsql_test view-31.2 {
+  CREATE TABLE t3(a INTEGER, b TEXT);
+  INSERT INTO t3 VALUES(123, 123);
+  WITH s AS ( VALUES(123), (456) ) SELECT * FROM t3 WHERE b IN s;
+} {123 123}
+
+
+finish_test
diff --git a/test/view2.test b/test/view2.test
new file mode 100644
index 0000000000000000000000000000000000000000..e5df1437fe2e566ace875ae37998247da4c84d47
--- /dev/null
+++ b/test/view2.test
@@ -0,0 +1,49 @@
+# 2021 May 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing VIEW statements.
+#
+# $Id: view.test,v 1.39 2008/12/14 14:45:21 danielk1977 Exp $
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Omit this entire file if the library is not configured with views enabled.
+ifcapable !view {
+  finish_test
+  return
+}
+set testprefix view2
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(x, y);
+  INSERT INTO t1 VALUES(1, 2);
+  CREATE VIEW v1 AS SELECT * FROM (
+    WITH x1 AS (SELECT y, x FROM t1)
+    SELECT * FROM x1
+  );
+}
+
+do_execsql_test 1.1 {
+  SELECT * FROM v1
+} {2 1}
+
+do_execsql_test 1.2 {
+  CREATE VIEW v3 AS SELECT * FROM main.t1;
+  WITH t1(a, b) AS ( SELECT 3, 4 ) SELECT * FROM v3;
+} {1 2}
+
+breakpoint
+do_execsql_test 1.3 {
+  CREATE VIEW v2 AS SELECT * FROM t1;
+  WITH t1(a, b) AS ( SELECT 3, 4 ) SELECT * FROM v2;
+} {1 2}
+
+finish_test
diff --git a/test/view3.test b/test/view3.test
new file mode 100644
index 0000000000000000000000000000000000000000..60dd694bfd8c80d8b28cbe075115d2cc5d6d735a
--- /dev/null
+++ b/test/view3.test
@@ -0,0 +1,60 @@
+# 2022 July 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing VIEW statements.
+#
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Omit this entire file if the library is not configured with views enabled.
+ifcapable !view {
+  finish_test
+  return
+}
+set testprefix view3
+
+# Ticket [d58ccbb3f1b]: Prevent Table.nRef overflow.
+db close
+sqlite3 db :memory:
+do_test 1.1 {
+  catchsql {
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(5);
+    CREATE VIEW v1 AS SELECT x*2 FROM t1;
+    CREATE VIEW v2 AS SELECT * FROM v1 UNION SELECT * FROM v1;
+    CREATE VIEW v4 AS SELECT * FROM v2 UNION SELECT * FROM v2;
+    CREATE VIEW v8 AS SELECT * FROM v4 UNION SELECT * FROM v4;
+    CREATE VIEW v16 AS SELECT * FROM v8 UNION SELECT * FROM v8;
+    CREATE VIEW v32 AS SELECT * FROM v16 UNION SELECT * FROM v16;
+    CREATE VIEW v64 AS SELECT * FROM v32 UNION SELECT * FROM v32;
+    CREATE VIEW v128 AS SELECT * FROM v64 UNION SELECT * FROM v64;
+    CREATE VIEW v256 AS SELECT * FROM v128 UNION SELECT * FROM v128;
+    CREATE VIEW v512 AS SELECT * FROM v256 UNION SELECT * FROM v256;
+    CREATE VIEW v1024 AS SELECT * FROM v512 UNION SELECT * FROM v512;
+    CREATE VIEW v2048 AS SELECT * FROM v1024 UNION SELECT * FROM v1024;
+    CREATE VIEW v4096 AS SELECT * FROM v2048 UNION SELECT * FROM v2048;
+    CREATE VIEW v8192 AS SELECT * FROM v4096 UNION SELECT * FROM v4096;
+    CREATE VIEW v16384 AS SELECT * FROM v8192 UNION SELECT * FROM v8192;
+    CREATE VIEW v32768 AS SELECT * FROM v16384 UNION SELECT * FROM v16384;
+    SELECT * FROM v32768 UNION SELECT * FROM v32768;
+  }
+} {1 {too many references to "v1": max 65535}}
+ifcapable progress {
+  do_test 1.2 {
+    db progress 1000 {expr 1}
+    catchsql {
+      SELECT * FROM v32768;
+    }
+  } {1 interrupted}
+}
+
+
+finish_test
diff --git a/test/vt02.c b/test/vt02.c
new file mode 100644
index 0000000000000000000000000000000000000000..06fade0969ddf1e8e6cc67c7008bf185592ead8a
--- /dev/null
+++ b/test/vt02.c
@@ -0,0 +1,1024 @@
+/*
+** This file implements an eponymous, read-only table-valued function
+** (a virtual table) designed to be used for testing.  We are not aware
+** of any practical real-world use case for the virtual table.
+**
+** This virtual table originated in the TH3 test suite.  It is still used
+** there, but has now been copied into the public SQLite source tree and
+** reused for a variety of testing purpose.  The name "vt02" comes from the
+** fact that there are many different testing virtual tables in TH3, of which
+** this one is the second.
+**
+** ## SUBJECT TO CHANGE
+**
+** Because this virtual table is intended for testing, its interface is not
+** guaranteed to be stable across releases.  Future releases may contain
+** changes in the vt02 design and interface.
+**
+** ## OVERVIEW
+**
+** The vt02 table-valued function has 10000 rows with 5 data columns.
+** Column X contains all integer values between 0 and 9999 inclusive.
+** Columns A, B, C, and D contain the individual base-10 digits associated
+** with each X value:
+**
+**      X     A  B  C  D
+**      ----  -  -  -  -
+**      0     0  0  0  0
+**      1     0  0  0  1
+**      2     0  0  0  2
+**              ...
+**      4998  4  9  9  8
+**      4999  4  9  9  9
+**      5000  5  0  0  0
+**              ...
+**      9995  9  9  9  5
+**      9996  9  9  9  6
+**      9997  9  9  9  7
+**
+** The xBestIndex method recognizes a variety of equality constraints
+** and attempts to optimize its output accordingly.
+**
+**      x=...
+**      a=...
+**      a=... AND b=...
+**      a=... AND b=... AND c=...
+**      a=... AND b=... AND c=... AND d=...
+**
+** Various ORDER BY constraints are also recognized and consumed.  The
+** OFFSET constraint is recognized and consumed.
+**
+** ## TABLE-VALUED FUNCTION
+**
+** The vt02 virtual table is eponymous and has two hidden columns, meaning
+** that it can functions a table-valued function.  The two hidden columns
+** are "flags" and "logtab", in that order.  The "flags" column can be set
+** to an integer where various bits enable or disable behaviors of the
+** virtual table.  The "logtab" can set to the name of an ordinary SQLite
+** table into which is written information about each call to xBestIndex.
+**
+** The bits of "flags" are as follows:
+**
+**       0x01           Ignore the aConstraint[].usable flag.  This might
+**                      result in the xBestIndex method incorrectly using
+**                      unusable entries in the aConstraint[] array, which
+**                      should result in the SQLite core detecting and
+**                      reporting that the virtual table is not behaving
+**                      to spec.
+**
+**       0x02           Do not set the orderByConsumed flag, even if it
+**                      could be set.
+**
+**       0x04           Do not consume the OFFSET constraint, if there is
+**                      one.  Instead, let the generated byte-code visit
+**                      and ignore the first few columns of output.
+**
+**       0x08           Use sqlite3_mprintf() to allocate an idxStr string.
+**                      The string is never used, but allocating it does
+**                      test the idxStr deallocation logic inside of the
+**                      SQLite core.
+**
+**       0x10           Cause the xBestIndex method to generate an idxNum
+**                      that xFilter does not understand, thus causing
+**                      the OP_VFilter opcode to raise an error.
+**
+**       0x20           Set the omit flag for all equality constraints on
+**                      columns X, A, B, C, and D that are used to limit
+**                      the search.
+**
+**       0x40           Add all constraints against X,A,B,C,D to the
+**                      vector of results sent to xFilter.  Only the first
+**                      few are used, as required by idxNum.
+**
+** Because these flags take effect during xBestIndex, the RHS of the
+** flag= constraint must be accessible.  In other words, the RHS of flag=
+** needs to be an integer literal, not another column of a join or a
+** bound parameter.
+**
+** ## LOGGING OUTPUT
+**
+** If the "logtab" columns is set, then each call to the xBestIndex method
+** inserts multiple rows into the table identified by "logtab".  These
+** rows collectively show the content of the sqlite3_index_info object and
+** other context associated with the xBestIndex call.
+**
+** If the table named by "logtab" does not previously exist, it is created
+** automatically.  The schema for the logtab table is like this:
+**
+**   CREATE TEMP TABLE vt02_log(
+**     bi INT,         -- BestIndex call counter
+**     vn TEXT,        -- Variable Name
+**     ix INT,         -- Index or value
+**     cn TEXT,        -- Column Name
+**     op INT,         -- Opcode or "DESC" value
+**     ux INT,         -- "Usable" flag
+**     ra BOOLEAN,     -- Right-hand side Available.
+**     rhs ANY,        -- Right-Hand Side value
+**     cs TEXT         -- Collating Sequence for this constraint
+**  );
+**
+** Because logging happens during xBestIindex, the RHS value of "logtab" must
+** be known to xBestIndex, which means it must be a string literal, not a
+** column in a join, or a bound parameter.
+** 
+** ## VIRTUAL TABLE SCHEMA
+**
+**    CREATE TABLE vt02(
+**      x INT,              -- integer between 0 and 9999 inclusive
+**      a INT,              -- The 1000s digit
+**      b INT,              -- The 100s digit
+**      c INT,              -- The 10s digit
+**      d INT,              -- The 1s digit
+**      flags INT HIDDEN,   -- Option flags
+**      logtab TEXT HIDDEN, -- Name of table into which to log xBestIndex
+**    );
+**
+** ## COMPILING AND RUNNING
+**
+** This file can also be compiled separately as a loadable extension
+** for SQLite (as long as the -DTH3_VERSION is not defined).  To compile as a
+** loadable extension do his:
+**
+**    gcc -Wall -g -shared -fPIC -I. -DSQLITE_DEBUG vt02.c -o vt02.so
+**
+** Or on Windows:
+**
+**    cl vt02.c -link -dll -out:vt02.dll
+**
+** Then load into the CLI using:
+**
+**    .load ./vt02 sqlite3_vt02_init
+**
+** ## IDXNUM SUMMARY
+**
+** The xBestIndex method communicates the query plan to xFilter using
+** the idxNum value, as follows:
+**
+**     0           unconstrained
+**     1           X=argv[0]
+**     2           A=argv[0]
+**     3           A=argv[0], B=argv[1]
+**     4           A=argv[0], B=argv[1], C=argv[2]
+**     5           A=argv[0], B=argv[1], C=argv[2], D=argv[3]
+**     6           A=argv[0], D IN argv[2]
+**     7           A=argv[0], B=argv[2], D IN argv[3]
+**     8           A=argv[0], B=argv[2], C=argv[3], D IN argv[4]
+**    1x           increment by 10
+**    2x           increment by 100
+**    3x           increment by 1000
+**   1xx           Use offset provided by argv[N]
+*/
+#ifndef TH3_VERSION
+  /* These bits for separate compilation as a loadable extension, only */
+  #include "sqlite3ext.h"
+  SQLITE_EXTENSION_INIT1
+  #include <stdlib.h>
+  #include <string.h>
+  #include <assert.h>
+#endif
+
+/* Forward declarations */
+typedef struct vt02_vtab vt02_vtab;
+typedef struct vt02_cur vt02_cur;
+
+/*
+** The complete virtual table
+*/
+struct vt02_vtab {
+  sqlite3_vtab parent;        /* Base clase.  Must be first. */
+  sqlite3 *db;                /* Database connection */
+  int busy;                   /* Currently running xBestIndex */
+};
+
+#define VT02_IGNORE_USABLE  0x0001  /* Ignore usable flags */
+#define VT02_NO_SORT_OPT    0x0002  /* Do not do any sorting optimizations */
+#define VT02_NO_OFFSET      0x0004  /* Omit the offset optimization */
+#define VT02_ALLOC_IDXSTR   0x0008  /* Alloate an idxStr */
+#define VT02_BAD_IDXNUM     0x0010  /* Generate an invalid idxNum */
+
+/*
+** A cursor
+*/
+struct vt02_cur {
+  sqlite3_vtab_cursor parent; /* Base class.  Must be first */
+  sqlite3_int64 i;            /* Current entry */
+  sqlite3_int64 iEof;         /* Indicate EOF when reaching this value */
+  int iIncr;                  /* Amount by which to increment */
+  unsigned int mD;            /* Mask of allowed D-column values */
+};
+
+/* The xConnect method */
+int vt02Connect(
+  sqlite3 *db,                /* The database connection */
+  void *pAux,                 /* Pointer to an alternative schema */
+  int argc,                   /* Number of arguments */
+  const char *const*argv,     /* Text of the arguments */
+  sqlite3_vtab **ppVTab,      /* Write the new vtab here */
+  char **pzErr                /* Error message written here */
+){
+  vt02_vtab *pVtab;
+  int rc;
+  const char *zSchema = (const char*)pAux;
+  static const char zDefaultSchema[] = 
+    "CREATE TABLE x(x INT, a INT, b INT, c INT, d INT,"
+    " flags INT HIDDEN, logtab TEXT HIDDEN);";
+#define VT02_COL_X       0
+#define VT02_COL_A       1
+#define VT02_COL_B       2
+#define VT02_COL_C       3
+#define VT02_COL_D       4
+#define VT02_COL_FLAGS   5
+#define VT02_COL_LOGTAB  6
+#define VT02_COL_NONE    7
+
+  pVtab = sqlite3_malloc( sizeof(*pVtab) );
+  if( pVtab==0 ){
+    *pzErr = sqlite3_mprintf("out of memory");
+    return SQLITE_NOMEM;
+  }
+  memset(pVtab, 0, sizeof(*pVtab));
+  pVtab->db = db;
+  rc = sqlite3_declare_vtab(db, zSchema ? zSchema : zDefaultSchema);
+  if( rc ){
+    sqlite3_free(pVtab);
+  }else{
+    *ppVTab = &pVtab->parent;
+  }
+  return rc;
+}
+
+/* the xDisconnect method
+*/
+int vt02Disconnect(sqlite3_vtab *pVTab){
+  sqlite3_free(pVTab);
+  return SQLITE_OK;
+}
+
+/* Put an error message into the zErrMsg string of the virtual table.
+*/
+static void vt02ErrMsg(sqlite3_vtab *pVtab, const char *zFormat, ...){
+  va_list ap;
+  sqlite3_free(pVtab->zErrMsg);
+  va_start(ap, zFormat);
+  pVtab->zErrMsg = sqlite3_vmprintf(zFormat, ap);
+  va_end(ap);
+}
+
+
+/* Open a cursor for scanning
+*/
+static int vt02Open(sqlite3_vtab *pVTab, sqlite3_vtab_cursor **ppCursor){
+  vt02_cur *pCur;
+  pCur = sqlite3_malloc( sizeof(*pCur) );
+  if( pCur==0 ){
+    vt02ErrMsg(pVTab, "out of memory");
+    return SQLITE_NOMEM;
+  }
+  *ppCursor = &pCur->parent;
+  pCur->i = -1;
+  return SQLITE_OK;
+}
+
+/* Close a cursor
+*/
+static int vt02Close(sqlite3_vtab_cursor *pCursor){
+  vt02_cur *pCur = (vt02_cur*)pCursor;
+  sqlite3_free(pCur);
+  return SQLITE_OK;
+}
+
+/* Return TRUE if we are at the end of the BVS and there are
+** no more entries.
+*/
+static int vt02Eof(sqlite3_vtab_cursor *pCursor){
+  vt02_cur *pCur = (vt02_cur*)pCursor;
+  return pCur->i<0 || pCur->i>=pCur->iEof;
+}
+
+/* Advance the cursor to the next row in the table
+*/
+static int vt02Next(sqlite3_vtab_cursor *pCursor){
+  vt02_cur *pCur = (vt02_cur*)pCursor;
+  do{
+    pCur->i += pCur->iIncr;
+    if( pCur->i<0 ) pCur->i = pCur->iEof;
+  }while( (pCur->mD & (1<<(pCur->i%10)))==0 && pCur->i<pCur->iEof );
+  return SQLITE_OK;
+}
+
+/* Rewind a cursor back to the beginning of its scan.
+**
+** Scanning is always increasing.
+**
+**   idxNum
+**     0           unconstrained
+**     1           X=argv[0]
+**     2           A=argv[0]
+**     3           A=argv[0], B=argv[1]
+**     4           A=argv[0], B=argv[1], C=argv[2]
+**     5           A=argv[0], B=argv[1], C=argv[2], D=argv[3]
+**     6           A=argv[0], D IN argv[2]
+**     7           A=argv[0], B=argv[2], D IN argv[3]
+**     8           A=argv[0], B=argv[2], C=argv[3], D IN argv[4]
+**    1x           increment by 10
+**    2x           increment by 100
+**    3x           increment by 1000
+**   1xx           Use offset provided by argv[N]
+*/
+static int vt02Filter(
+  sqlite3_vtab_cursor *pCursor, /* The cursor to rewind */
+  int idxNum,                   /* Search strategy */
+  const char *idxStr,           /* Not used */
+  int argc,                     /* Not used */
+  sqlite3_value **argv          /* Not used */
+){
+  vt02_cur *pCur = (vt02_cur*)pCursor; /* The vt02 cursor */
+  int bUseOffset = 0;                  /* True to use OFFSET value */
+  int iArg = 0;                        /* argv[] values used so far */
+  int iOrigIdxNum = idxNum;            /* Original value for idxNum */
+
+  pCur->iIncr = 1;
+  pCur->mD = 0x3ff;
+  if( idxNum>=100 ){
+    bUseOffset = 1;
+    idxNum -= 100;
+  }
+  if( idxNum<0 || idxNum>38 ) goto vt02_bad_idxnum;
+  while( idxNum>=10 ){
+    pCur->iIncr *= 10;
+    idxNum -= 10;
+  }
+  if( idxNum==0 ){
+    pCur->i = 0;
+    pCur->iEof = 10000;
+  }else if( idxNum==1 ){
+    pCur->i = sqlite3_value_int64(argv[0]);
+    if( pCur->i<0 ) pCur->i = -1;
+    if( pCur->i>9999 ) pCur->i = 10000;
+    pCur->iEof = pCur->i+1;
+    if( pCur->i<0 || pCur->i>9999 ) pCur->i = pCur->iEof;
+  }else if( idxNum>=2 && idxNum<=5 ){
+    int i, e, m;
+    e = idxNum - 2;
+    assert( e<=argc-1 );
+    pCur->i = 0;
+    for(m=1000, i=0; i<=e; i++, m /= 10){
+      sqlite3_int64 v = sqlite3_value_int64(argv[iArg++]);
+      if( v<0 ) v = 0;
+      if( v>9 ) v = 9;
+      pCur->i += m*v;
+      pCur->iEof = pCur->i+m;
+    }
+  }else if( idxNum>=6 && idxNum<=8 ){
+    int i, e, m, rc;
+    sqlite3_value *pIn, *pVal;
+    e = idxNum - 6;
+    assert( e<=argc-2 );
+    pCur->i = 0;
+    for(m=1000, i=0; i<=e; i++, m /= 10){
+      sqlite3_int64 v;
+      pVal = 0;
+      if( sqlite3_vtab_in_first(0, &pVal)!=SQLITE_MISUSE
+       || sqlite3_vtab_in_first(argv[iArg], &pVal)!=SQLITE_ERROR
+      ){
+        vt02ErrMsg(pCursor->pVtab, 
+                "unexpected success from sqlite3_vtab_in_first()");
+        return SQLITE_ERROR;
+      }
+      v = sqlite3_value_int64(argv[iArg++]);
+      if( v<0 ) v = 0;
+      if( v>9 ) v = 9;
+      pCur->i += m*v;
+      pCur->iEof = pCur->i+m;
+    }
+    pCur->mD = 0;
+    pIn = argv[iArg++];
+    assert( sqlite3_value_type(pIn)==SQLITE_NULL );
+    for( rc = sqlite3_vtab_in_first(pIn, &pVal);
+         rc==SQLITE_OK && pVal!=0;
+         rc = sqlite3_vtab_in_next(pIn, &pVal)
+    ){
+      int eType = sqlite3_value_numeric_type(pVal);
+      if( eType==SQLITE_FLOAT ){
+        double r = sqlite3_value_double(pVal);
+        if( r<0.0 || r>9.0 || r!=(int)r ) continue;
+      }else if( eType!=SQLITE_INTEGER ){
+        continue;
+      }
+      i = sqlite3_value_int(pVal);
+      if( i<0 || i>9 ) continue;
+      pCur->mD |= 1<<i;
+    }
+    if( rc!=SQLITE_OK && rc!=SQLITE_DONE ){
+      vt02ErrMsg(pCursor->pVtab, "Error from sqlite3_vtab_in_first/next()");
+      return rc;
+    }
+  }else{
+    goto vt02_bad_idxnum;
+  }
+  if( bUseOffset ){
+    int nSkip = sqlite3_value_int(argv[iArg]);
+    while( nSkip-- > 0 && pCur->i<pCur->iEof ) vt02Next(pCursor);
+  }
+  return SQLITE_OK;
+
+vt02_bad_idxnum:
+  vt02ErrMsg(pCursor->pVtab, "invalid idxNum for vt02: %d", iOrigIdxNum);
+  return SQLITE_ERROR;
+}
+
+/* Return the Nth column of the current row.
+*/
+static int vt02Column(
+  sqlite3_vtab_cursor *pCursor,
+  sqlite3_context *context,
+  int N
+){
+  vt02_cur *pCur = (vt02_cur*)pCursor;
+  int v = pCur->i;
+  if( N==VT02_COL_X ){
+    sqlite3_result_int(context, v);
+  }else if( N>=VT02_COL_A && N<=VT02_COL_D ){
+    static const int iDivisor[] = { 1, 1000, 100, 10, 1 };
+    v = (v/iDivisor[N])%10;
+    sqlite3_result_int(context, v);
+  }
+  return SQLITE_OK;
+}
+
+/* Return the rowid of the current row
+*/
+static int vt02Rowid(sqlite3_vtab_cursor *pCursor, sqlite3_int64 *pRowid){
+  vt02_cur *pCur = (vt02_cur*)pCursor;
+  *pRowid = pCur->i+1;
+  return SQLITE_OK;
+}
+
+/*************************************************************************
+** Logging Subsystem
+**
+** The sqlite3BestIndexLog() routine implements a logging system for
+** xBestIndex calls.  This code is portable to any virtual table.
+**
+** sqlite3BestIndexLog() is the main routine,  sqlite3RunSql() is a
+** helper routine used for running various SQL statements as part of
+** creating the log.
+**
+** These two routines should be portable to other virtual tables.  Simply
+** extract this code and call sqlite3BestIndexLog() near the end of the
+** xBestIndex method in cases where logging is desired.
+*/
+/*
+** Run SQL on behalf of sqlite3BestIndexLog.
+**
+** Construct the SQL using the zFormat string and subsequent arguments.
+** Or if zFormat is NULL, take the SQL as the first argument after the
+** zFormat.  In either case, the dynamically allocated SQL string is
+** freed after it has been run.  If something goes wrong with the SQL,
+** then an error is left in pVTab->zErrMsg.
+*/
+static void sqlite3RunSql(
+  sqlite3 *db,               /* Run the SQL on this database connection */
+  sqlite3_vtab *pVTab,       /* Report errors to this virtual table */
+  const char *zFormat,       /* Format string for SQL, or NULL */
+  ...                        /* Arguments, according to the format string */
+){
+  char *zSql;
+
+  va_list ap;
+  va_start(ap, zFormat);
+  if( zFormat==0 ){
+    zSql = va_arg(ap, char*);
+  }else{
+    zSql = sqlite3_vmprintf(zFormat, ap);
+  }
+  va_end(ap);
+  if( zSql ){
+    char *zErrMsg = 0;
+    (void)sqlite3_exec(db, zSql, 0, 0, &zErrMsg);
+    if( zErrMsg ){
+      if( pVTab->zErrMsg==0 ){
+        pVTab->zErrMsg = sqlite3_mprintf("%s in [%s]", zErrMsg, zSql);
+      }
+      sqlite3_free(zErrMsg);
+    }
+    sqlite3_free(zSql);
+  }
+}
+
+/*
+** Record information about each xBestIndex method call in a separate
+** table:
+**
+**   CREATE TEMP TABLE [log-table-name] (
+**     bi INT,      -- BestIndex call number
+**     vn TEXT,     -- Variable Name
+**     ix INT,      -- Index or value
+**     cn TEXT,     -- Column Name
+**     op INT,      -- Opcode or argvIndex
+**     ux INT,      -- "usable" or "omit" flag
+**     rx BOOLEAN,  -- True if has a RHS value
+**     rhs ANY,     -- The RHS value
+**     cs TEXT,     -- Collating Sequence
+**     inop BOOLEAN -- True if this is a batchable IN operator
+**  );
+**
+** If an error occurs, leave an error message in pVTab->zErrMsg.
+*/
+static void sqlite3BestIndexLog(
+  sqlite3_index_info *pInfo,  /* The sqlite3_index_info object */
+  const char *zLogTab,        /* Log into this table */
+  sqlite3 *db,                /* Database connection containing zLogTab */
+  const char **azColname,     /* Names of columns in the virtual table */
+  sqlite3_vtab *pVTab         /* Record errors into this object */
+){
+  int i, rc;
+  sqlite3_str *pStr;
+  int iBI;
+
+  if( sqlite3_table_column_metadata(db,0,zLogTab,0,0,0,0,0,0) ){
+    /* The log table does not previously exist.  Create it. */
+    sqlite3RunSql(db,pVTab, 
+      "CREATE TABLE IF NOT EXISTS temp.\"%w\"(\n"
+      " bi INT,          -- BestIndex call number\n"
+      " vn TEXT,         -- Variable Name\n"
+      " ix INT,          -- Index or value\n"
+      " cn TEXT,         -- Column Name\n"
+      " op INT,          -- Opcode or argvIndex\n"
+      " ux INT,          -- usable for omit flag\n"
+      " rx BOOLEAN,      -- Right-hand side value is available\n"
+      " rhs ANY,         -- RHS value\n"
+      " cs TEXT,         -- Collating Sequence\n"
+      " inop BOOLEAN     -- IN operator capable of batch reads\n"
+      ");", zLogTab
+    );
+    iBI = 1;
+  }else{
+    /* The log table does already exist.  We assume that it has the
+    ** correct schema and proceed to find the largest prior "bi" value.
+    ** If the schema is wrong, errors might result.  The code is able
+    ** to deal with this. */
+    sqlite3_stmt *pStmt;
+    char *zSql;
+    zSql = sqlite3_mprintf("SELECT max(bi) FROM temp.\"%w\"",zLogTab);
+    if( zSql==0 ){
+      sqlite3_free(pVTab->zErrMsg);
+      pVTab->zErrMsg = sqlite3_mprintf("out of memory");
+      return;
+    }
+    rc = sqlite3_prepare_v2(db, zSql, -1, &pStmt, 0);
+    sqlite3_free(zSql);
+    if( rc ){
+      sqlite3_free(pVTab->zErrMsg);
+      pVTab->zErrMsg = sqlite3_mprintf("%s", sqlite3_errmsg(db));
+      iBI = 0;
+    }else if( sqlite3_step(pStmt)==SQLITE_ROW ){
+      iBI = sqlite3_column_int(pStmt, 0)+1;
+    }else{
+      iBI = 1;
+    }
+    sqlite3_finalize(pStmt);
+  }
+  sqlite3RunSql(db,pVTab,
+    "INSERT INTO temp.\"%w\"(bi,vn,ix) VALUES(%d,'nConstraint',%d)"
+      "RETURNING iif(bi=%d,'ok',RAISE(ABORT,'wrong trigger'))",
+    /* The RETURNING clause checks to see that the returning trigger fired
+    ** for the correct INSERT in the case of nested INSERT RETURNINGs. */
+    zLogTab, iBI, pInfo->nConstraint, iBI
+  );
+  for(i=0; i<pInfo->nConstraint; i++){
+    sqlite3_value *pVal;
+    char *zSql;
+    int iCol = pInfo->aConstraint[i].iColumn;
+    int op = pInfo->aConstraint[i].op;
+    const char *zCol;
+    if( op==SQLITE_INDEX_CONSTRAINT_LIMIT
+     || op==SQLITE_INDEX_CONSTRAINT_OFFSET
+    ){
+      zCol = "";
+    }else if( iCol<0 ){
+      zCol = "rowid";
+    }else{
+      zCol = azColname[iCol];
+    }
+    pStr = sqlite3_str_new(0);
+    sqlite3_str_appendf(pStr,
+       "INSERT INTO temp.\"%w\"(bi,vn,ix,cn,op,ux,rx,rhs,cs,inop)"
+       "VALUES(%d,'aConstraint',%d,%Q,%d,%d",
+       zLogTab, iBI,
+       i,
+       zCol,
+       op,
+       pInfo->aConstraint[i].usable);
+    pVal = 0;
+    rc = sqlite3_vtab_rhs_value(pInfo, i, &pVal);
+    assert( pVal!=0 || rc!=SQLITE_OK );
+    if( rc==SQLITE_OK ){
+      sqlite3_str_appendf(pStr,",1,?1");
+    }else{
+      sqlite3_str_appendf(pStr,",0,NULL");
+    }
+    sqlite3_str_appendf(pStr,",%Q,%d)",
+         sqlite3_vtab_collation(pInfo,i),
+         sqlite3_vtab_in(pInfo,i,-1));
+    zSql = sqlite3_str_finish(pStr);
+    if( zSql==0 ){
+      if( pVTab->zErrMsg==0 ) pVTab->zErrMsg = sqlite3_mprintf("out of memory");
+    }else{
+      sqlite3_stmt *pStmt = 0;
+      rc = sqlite3_prepare_v2(db, zSql, -1, &pStmt, 0);
+      if( rc ){
+        if( pVTab->zErrMsg==0 ){
+          pVTab->zErrMsg = sqlite3_mprintf("%s", sqlite3_errmsg(db));
+        }
+      }else{
+        if( pVal ) sqlite3_bind_value(pStmt, 1, pVal);
+        sqlite3_step(pStmt);
+        rc = sqlite3_reset(pStmt);
+        if( rc && pVTab->zErrMsg==0 ){
+          pVTab->zErrMsg = sqlite3_mprintf("%s", sqlite3_errmsg(db));
+        }
+      }
+      sqlite3_finalize(pStmt);
+      sqlite3_free(zSql);
+    }
+  }
+  sqlite3RunSql(db,pVTab,
+    "INSERT INTO temp.\"%w\"(bi,vn,ix) VALUES(%d,'nOrderBy',%d)",
+    zLogTab, iBI, pInfo->nOrderBy
+  );
+  for(i=0; i<pInfo->nOrderBy; i++){
+    int iCol = pInfo->aOrderBy[i].iColumn;
+    sqlite3RunSql(db,pVTab,
+      "INSERT INTO temp.\"%w\"(bi,vn,ix,cn,op)VALUES(%d,'aOrderBy',%d,%Q,%d)",
+      zLogTab, iBI,
+      i,
+      iCol>=0 ? azColname[iCol] : "rowid",
+      pInfo->aOrderBy[i].desc
+    );
+  }
+  sqlite3RunSql(db,pVTab,
+    "INSERT INTO temp.\"%w\"(bi,vn,ix) VALUES(%d,'sqlite3_vtab_distinct',%d)",
+    zLogTab, iBI, sqlite3_vtab_distinct(pInfo)
+  );
+  sqlite3RunSql(db,pVTab,
+    "INSERT INTO temp.\"%w\"(bi,vn,ix) VALUES(%d,'colUsed',%lld)",
+    zLogTab, iBI, pInfo->colUsed
+  );
+  for(i=0; i<pInfo->nConstraint; i++){
+    int iCol = pInfo->aConstraint[i].iColumn;
+    int op = pInfo->aConstraint[i].op;
+    const char *zCol;
+    if( op==SQLITE_INDEX_CONSTRAINT_LIMIT
+     || op==SQLITE_INDEX_CONSTRAINT_OFFSET
+    ){
+      zCol = "";
+    }else if( iCol<0 ){
+      zCol = "rowid";
+    }else{
+      zCol = azColname[iCol];
+    }
+    sqlite3RunSql(db,pVTab,
+       "INSERT INTO temp.\"%w\"(bi,vn,ix,cn,op,ux)"
+       "VALUES(%d,'aConstraintUsage',%d,%Q,%d,%d)",
+       zLogTab, iBI,
+       i,
+       zCol,
+       pInfo->aConstraintUsage[i].argvIndex,
+       pInfo->aConstraintUsage[i].omit
+    );
+  }
+  sqlite3RunSql(db,pVTab,
+    "INSERT INTO temp.\"%w\"(bi,vn,ix)VALUES(%d,'idxNum',%d)",
+    zLogTab, iBI, pInfo->idxNum
+  );
+  sqlite3RunSql(db,pVTab,
+    "INSERT INTO temp.\"%w\"(bi,vn,ix)VALUES(%d,'estimatedCost',%f)",
+    zLogTab, iBI, pInfo->estimatedCost
+  );
+  sqlite3RunSql(db,pVTab,
+    "INSERT INTO temp.\"%w\"(bi,vn,ix)VALUES(%d,'estimatedRows',%lld)",
+    zLogTab, iBI, pInfo->estimatedRows
+  );
+  if( pInfo->idxStr ){
+    sqlite3RunSql(db,pVTab,
+      "INSERT INTO temp.\"%w\"(bi,vn,ix)VALUES(%d,'idxStr',%Q)",
+      zLogTab, iBI, pInfo->idxStr
+    );
+    sqlite3RunSql(db,pVTab,
+      "INSERT INTO temp.\"%w\"(bi,vn,ix)VALUES(%d,'needToFreeIdxStr',%d)",
+      zLogTab, iBI, pInfo->needToFreeIdxStr
+    );
+  }
+  if( pInfo->nOrderBy ){
+    sqlite3RunSql(db,pVTab,
+      "INSERT INTO temp.\"%w\"(bi,vn,ix)VALUES(%d,'orderByConsumed',%d)",
+      zLogTab, iBI, pInfo->orderByConsumed
+    );
+  }
+}
+/*
+** End of Logging Subsystem
+*****************************************************************************/
+
+
+/* Find an estimated cost of running a query against vt02.
+*/
+static int vt02BestIndex(sqlite3_vtab *pVTab, sqlite3_index_info *pInfo){
+  int i;                      /* Loop counter */
+  int isEq[5];                /* Equality constraints on X, A, B, C, and D */
+  int isUsed[5];              /* Other non-== cosntraints X, A, B, C, and D */
+  int argvIndex = 0;          /* Next available argv[] slot */
+  int iOffset = -1;           /* Constraint for OFFSET */
+  void *pX = 0;               /* idxStr value */
+  int flags = 0;              /* RHS value for flags= */
+  const char *zLogTab = 0;    /* RHS value for logtab= */
+  int iFlagTerm = -1;         /* Constraint term for flags= */
+  int iLogTerm = -1;          /* Constraint term for logtab= */
+  int iIn = -1;               /* Index of the IN constraint */
+  vt02_vtab *pSelf;           /* This virtual table */
+
+  pSelf = (vt02_vtab*)pVTab;
+  if( pSelf->busy ){
+    vt02ErrMsg(pVTab, "recursive use  of vt02 prohibited");
+    return SQLITE_CONSTRAINT;
+  }
+  pSelf->busy++;
+ 
+
+  /* Do an initial scan for flags=N and logtab=TAB constraints with
+  ** usable RHS values */
+  for(i=0; i<pInfo->nConstraint; i++){
+    sqlite3_value *pVal;
+    if( !pInfo->aConstraint[i].usable ) continue;
+    if( pInfo->aConstraint[i].op!=SQLITE_INDEX_CONSTRAINT_EQ ) continue;
+    switch( pInfo->aConstraint[i].iColumn ){
+      case VT02_COL_FLAGS:
+        if( sqlite3_vtab_rhs_value(pInfo, i, &pVal)==SQLITE_OK
+         && sqlite3_value_type(pVal)==SQLITE_INTEGER
+        ){
+          flags = sqlite3_value_int(pVal);
+        }
+        iFlagTerm = i;
+        break;
+      case VT02_COL_LOGTAB:
+        if( sqlite3_vtab_rhs_value(pInfo, i, &pVal)==SQLITE_OK
+         && sqlite3_value_type(pVal)==SQLITE_TEXT
+        ){
+          zLogTab = (const char*)sqlite3_value_text(pVal);
+        }
+        iLogTerm = i;
+        break;
+    }
+  }
+
+  /* Do a second scan to actually analyze the index information */
+  memset(isEq, 0xff, sizeof(isEq));
+  memset(isUsed, 0xff, sizeof(isUsed));
+  for(i=0; i<pInfo->nConstraint; i++){
+    int j = pInfo->aConstraint[i].iColumn;
+    if( j>=VT02_COL_FLAGS ) continue;
+    if( pInfo->aConstraint[i].usable==0
+     && (flags & VT02_IGNORE_USABLE)==0 ) continue;
+    if( j<0 ) j = VT02_COL_X;
+    switch( pInfo->aConstraint[i].op ){
+      case SQLITE_INDEX_CONSTRAINT_FUNCTION:
+      case SQLITE_INDEX_CONSTRAINT_EQ:
+        isEq[j] = i;
+        break;
+      case SQLITE_INDEX_CONSTRAINT_LT:
+      case SQLITE_INDEX_CONSTRAINT_LE:
+      case SQLITE_INDEX_CONSTRAINT_GT:
+      case SQLITE_INDEX_CONSTRAINT_GE:
+        isUsed[j] = i;
+        break;
+      case SQLITE_INDEX_CONSTRAINT_OFFSET:
+        iOffset = i;
+        break;
+    }
+  }
+
+  /* Use the analysis to find an appropriate query plan */
+  if( isEq[0]>=0 ){
+    /* A constraint of X= takes priority */
+    pInfo->estimatedCost = 1;
+    pInfo->aConstraintUsage[isEq[0]].argvIndex = ++argvIndex;
+    if( flags & 0x20 ) pInfo->aConstraintUsage[isEq[0]].omit = 1;
+    pInfo->idxNum = 1;
+  }else if( isEq[1]<0 ){
+    /* If there is no X= nor A= then we have to do a full scan */
+    pInfo->idxNum = 0;
+    pInfo->estimatedCost = 10000;
+  }else{
+    int v = 1000;
+    pInfo->aConstraintUsage[isEq[1]].argvIndex = ++argvIndex;
+    if( flags & 0x20 ) pInfo->aConstraintUsage[isEq[1]].omit = 1;
+    for(i=2; i<=4 && isEq[i]>=0; i++){
+      if( i==4 && sqlite3_vtab_in(pInfo, isEq[4], 0) ) break;
+      pInfo->aConstraintUsage[isEq[i]].argvIndex = ++argvIndex;
+      if( flags & 0x20 ) pInfo->aConstraintUsage[isEq[i]].omit = 1;
+      v /= 10;
+    }
+    pInfo->idxNum = i;
+    if( isEq[4]>=0 && sqlite3_vtab_in(pInfo,isEq[4],1) ){
+      iIn = isEq[4];
+      pInfo->aConstraintUsage[iIn].argvIndex = ++argvIndex;
+      if( flags & 0x20 ) pInfo->aConstraintUsage[iIn].omit = 1;
+      v /= 5;
+      i++;
+      pInfo->idxNum += 4;
+    }
+    pInfo->estimatedCost = v;
+  }
+  pInfo->estimatedRows = (sqlite3_int64)pInfo->estimatedCost;
+
+  /* Attempt to consume the ORDER BY clause.  Except, always leave
+  ** orderByConsumed set to 0 for vt02_no_sort_opt.  In this way,
+  ** we can compare vt02 and vt02_no_sort_opt to ensure they get
+  ** the same answer.
+  */
+  if( pInfo->nOrderBy>0 && (flags & VT02_NO_SORT_OPT)==0 ){
+    if( pInfo->idxNum==1 ){
+      /* There will only be one row of output.  So it is always sorted. */
+      pInfo->orderByConsumed = 1;
+    }else
+    if( pInfo->aOrderBy[0].iColumn<=0 
+     && pInfo->aOrderBy[0].desc==0
+    ){
+      /* First column of order by is X ascending */
+      pInfo->orderByConsumed = 1;
+    }else
+    if( sqlite3_vtab_distinct(pInfo)>=1 ){
+      unsigned int x = 0;
+      for(i=0; i<pInfo->nOrderBy; i++){
+        int iCol = pInfo->aOrderBy[i].iColumn;
+        if( iCol<0 ) iCol = 0;
+        x |= 1<<iCol;
+      }
+      if( sqlite3_vtab_distinct(pInfo)==2 ){
+        if( x==0x02 ){
+          /* DISTINCT A */
+          pInfo->idxNum += 30;
+          pInfo->orderByConsumed = 1;
+        }else if( x==0x06 ){
+          /* DISTINCT A,B */
+          pInfo->idxNum += 20;
+          pInfo->orderByConsumed = 1;
+        }else if( x==0x0e ){
+          /* DISTINCT A,B,C */
+          pInfo->idxNum += 10;
+          pInfo->orderByConsumed = 1;
+        }else if( x & 0x01 ){
+          /* DISTINCT X */
+          pInfo->orderByConsumed = 1;
+        }else if( x==0x1e ){
+          /* DISTINCT A,B,C,D */
+          pInfo->orderByConsumed = 1;
+        }
+      }else{
+        if( x==0x02 ){
+          /* GROUP BY A */
+          pInfo->orderByConsumed = 1;
+        }else if( x==0x06 ){
+          /* GROUP BY A,B */
+          pInfo->orderByConsumed = 1;
+        }else if( x==0x0e ){
+          /* GROUP BY A,B,C */
+          pInfo->orderByConsumed = 1;
+        }else if( x & 0x01 ){
+          /* GROUP BY X */
+          pInfo->orderByConsumed = 1;
+        }else if( x==0x1e ){
+          /* GROUP BY A,B,C,D */
+          pInfo->orderByConsumed = 1;
+        }
+      }
+    }
+  }
+
+  if( flags & VT02_ALLOC_IDXSTR ){
+    pInfo->idxStr = sqlite3_mprintf("test");
+    pInfo->needToFreeIdxStr = 1;
+  }
+  if( flags & VT02_BAD_IDXNUM ){
+    pInfo->idxNum += 1000;
+  }
+
+  if( iOffset>=0 ){
+    pInfo->aConstraintUsage[iOffset].argvIndex = ++argvIndex;
+    if( (flags & VT02_NO_OFFSET)==0
+     && (pInfo->nOrderBy==0 || pInfo->orderByConsumed)
+    ){
+      pInfo->aConstraintUsage[iOffset].omit = 1;
+      pInfo->idxNum += 100;
+    }
+  }
+
+
+  /* Always omit flags= and logtab= constraints to prevent them from
+  ** interfering with the bytecode.  Put them at the end of the argv[]
+  ** array to keep them out of the way.
+  */
+  if( iFlagTerm>=0 ){
+    pInfo->aConstraintUsage[iFlagTerm].omit = 1;
+    pInfo->aConstraintUsage[iFlagTerm].argvIndex = ++argvIndex;
+  }
+  if( iLogTerm>=0 ){
+    pInfo->aConstraintUsage[iLogTerm].omit = 1;
+    pInfo->aConstraintUsage[iLogTerm].argvIndex = ++argvIndex;
+  }
+
+  /* The 0x40 flag means add all usable constraints to the output set */
+  if( flags & 0x40 ){
+    for(i=0; i<pInfo->nConstraint; i++){
+      if( pInfo->aConstraint[i].usable
+       && pInfo->aConstraintUsage[i].argvIndex==0
+      ){
+        pInfo->aConstraintUsage[i].argvIndex = ++argvIndex;
+        if( flags & 0x20 )  pInfo->aConstraintUsage[i].omit = 1;
+      }
+    }
+  }
+
+
+  /* Generate the log if requested */
+  if( zLogTab ){
+    static const char *azColname[] = {
+       "x", "a", "b", "c", "d", "flags", "logtab"
+    };
+    sqlite3 *db = ((vt02_vtab*)pVTab)->db;
+    sqlite3BestIndexLog(pInfo, zLogTab, db, azColname, pVTab);
+  }
+  pSelf->busy--;
+
+  /* Try to do a memory allocation solely for the purpose of causing
+  ** an error under OOM testing loops */
+  pX = sqlite3_malloc(800);
+  if( pX==0 ) return SQLITE_NOMEM;
+  sqlite3_free(pX);
+
+  return pVTab->zErrMsg!=0 ? SQLITE_ERROR : SQLITE_OK;
+}
+
+/* This is the sqlite3_module definition for the the virtual table defined
+** by this include file.
+*/
+const sqlite3_module vt02Module = {
+  /* iVersion      */  2,
+  /* xCreate       */  0,   /* This is an eponymous table */
+  /* xConnect      */  vt02Connect,
+  /* xBestIndex    */  vt02BestIndex,
+  /* xDisconnect   */  vt02Disconnect,
+  /* xDestroy      */  vt02Disconnect,
+  /* xOpen         */  vt02Open,
+  /* xClose        */  vt02Close,
+  /* xFilter       */  vt02Filter,
+  /* xNext         */  vt02Next,
+  /* xEof          */  vt02Eof,
+  /* xColumn       */  vt02Column,
+  /* xRowid        */  vt02Rowid,
+  /* xUpdate       */  0,
+  /* xBegin        */  0, 
+  /* xSync         */  0,
+  /* xCommit       */  0, 
+  /* xRollback     */  0,
+  /* xFindFunction */  0,
+  /* xRename       */  0,
+  /* xSavepoint    */  0,
+  /* xRelease      */  0,
+  /* xRollbackTo   */  0,
+  /* xShadowName   */  0,
+  /* xIntegrity    */  0
+};
+
+static void vt02CoreInit(sqlite3 *db){
+  static const char zPkXSchema[] = 
+    "CREATE TABLE x(x INT NOT NULL PRIMARY KEY, a INT, b INT, c INT, d INT,"
+    " flags INT HIDDEN, logtab TEXT HIDDEN);";
+  static const char zPkABCDSchema[] = 
+    "CREATE TABLE x(x INT, a INT NOT NULL, b INT NOT NULL, c INT NOT NULL, "
+    "d INT NOT NULL, flags INT HIDDEN, logtab TEXT HIDDEN, "
+    "PRIMARY KEY(a,b,c,d));";
+  sqlite3_create_module(db, "vt02", &vt02Module, 0);
+  sqlite3_create_module(db, "vt02pkx", &vt02Module, (void*)zPkXSchema);
+  sqlite3_create_module(db, "vt02pkabcd", &vt02Module, (void*)zPkABCDSchema);
+}
+
+#ifdef TH3_VERSION
+static void vt02_init(th3state *p, int iDb, char *zArg){
+  vt02CoreInit(th3dbPointer(p, iDb));
+}
+#else
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_vt02_init(
+  sqlite3 *db, 
+  char **pzErrMsg, 
+  const sqlite3_api_routines *pApi
+){
+  SQLITE_EXTENSION_INIT2(pApi);
+  vt02CoreInit(db);
+  return SQLITE_OK;
+}
+#endif /* TH3_VERSION */
diff --git a/test/vtab1.test b/test/vtab1.test
new file mode 100644
index 0000000000000000000000000000000000000000..4b8fb9c700c32fd6ff4b6d6f6fb567d10cf30011
--- /dev/null
+++ b/test/vtab1.test
@@ -0,0 +1,1593 @@
+# 2006 June 10
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is creating and dropping virtual tables.
+#
+# $Id: vtab1.test,v 1.57 2008/08/01 17:51:47 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix vtab1
+
+ifcapable !vtab||!schema_pragmas {
+  finish_test
+  return
+}
+
+#----------------------------------------------------------------------
+# Organization of tests in this file:
+#
+# vtab1-1.*: Error conditions and other issues surrounding creation/connection
+#            of a virtual module.
+# vtab1-2.*: Test sqlite3_declare_vtab() and the xConnect/xDisconnect methods.
+# vtab1-3.*: Table scans and WHERE clauses.
+# vtab1-4.*: Table scans and ORDER BY clauses.
+# vtab1-5.*: Test queries that include joins. This brings the
+#            sqlite3_index_info.estimatedCost variable into play.
+# vtab1-6.*: Test UPDATE/INSERT/DELETE on vtables.
+# vtab1-7.*: Test sqlite3_last_insert_rowid().
+#
+# This file uses the "echo" module (see src/test8.c). Refer to comments
+# in that file for the special behaviour of the Tcl $echo_module variable.
+#
+# TODO: 
+#   * How to test the sqlite3_index_constraint_usage.omit field?
+#   * vtab1-5.*
+#
+# vtab1-14.*: Test 'IN' constraints - i.e. "SELECT * FROM t1 WHERE id IN(...)"
+#
+# vtab1-18.*: Check that the LIKE optimization is not applied when the lhs
+#             is a virtual table column.
+#
+
+
+#----------------------------------------------------------------------
+# Test cases vtab1.1.*
+#
+
+# We cannot create a virtual table if the module has not been registered.
+#
+do_test vtab1-1.1.1 {
+  catchsql {
+    CREATE VIRTUAL TABLE t1 USING echo;
+  }
+} {1 {no such module: echo}}
+do_test vtab1-1.1.2 {
+  catchsql {
+    CREATE VIRTUAL TABLE IF NOT EXISTS t1 USING echo;
+  }
+} {1 {no such module: echo}}
+do_test vtab1-1.2 {
+  execsql {
+    SELECT name FROM sqlite_master ORDER BY 1
+  }
+} {}
+
+# Register the module
+register_echo_module [sqlite3_connection_pointer db]
+
+# Once a module has been registered, virtual tables using that module
+# may be created. However if a module xCreate() fails to call
+# sqlite3_declare_vtab() an error will be raised and the table not created.
+#
+# The "echo" module does not invoke sqlite3_declare_vtab() if it is
+# passed zero arguments.
+#
+do_test vtab1-1.3.1 {
+  catchsql {
+    CREATE VIRTUAL TABLE t1 USING echo;
+  }
+} {1 {vtable constructor did not declare schema: t1}}
+do_test vtab1-1.3.2 {
+  catchsql {
+    CREATE VIRTUAL TABLE IF NOT EXISTS t1 USING echo;
+  }
+} {1 {vtable constructor did not declare schema: t1}}
+do_test vtab1-1.4 {
+  execsql {
+    SELECT name FROM sqlite_master ORDER BY 1
+  }
+} {}
+
+# The "echo" module xCreate method returns an error and does not create
+# the virtual table if it is passed an argument that does not correspond
+# to an existing real table in the same database.
+#
+do_test vtab1-1.5.1 {
+  catchsql {
+    CREATE VIRTUAL TABLE t1 USING echo(no_such_table);
+  }
+} {1 {vtable constructor failed: t1}}
+do_test vtab1-1.5.2 {
+  catchsql {
+    CREATE VIRTUAL TABLE IF NOT EXISTS t1 USING echo(no_such_table);
+  }
+} {1 {vtable constructor failed: t1}}
+do_test vtab1-1.6 {
+  execsql {
+    SELECT name FROM sqlite_master ORDER BY 1
+  }
+} {}
+
+# Ticket #2156.  Using the sqlite3_prepare_v2() API, make sure that
+# a CREATE VIRTUAL TABLE statement can be used multiple times.
+#
+do_test vtab1-1.2152.1 {
+  set DB [sqlite3_connection_pointer db]
+  set sql {CREATE VIRTUAL TABLE t2152a USING echo(t2152b)}
+  set STMT [sqlite3_prepare_v2 $DB $sql -1 TAIL]
+  sqlite3_step $STMT
+} SQLITE_ERROR
+do_test vtab-1.2152.2 {
+  sqlite3_reset $STMT
+  sqlite3_step $STMT
+} SQLITE_ERROR
+do_test vtab-1.2152.3 {
+  sqlite3_reset $STMT
+  db eval {CREATE TABLE t2152b(x,y)}
+  sqlite3_step $STMT
+} SQLITE_DONE
+do_test vtab-1.2152.4 {
+  sqlite3_finalize $STMT
+  db eval {DROP TABLE t2152a; DROP TABLE t2152b}
+} {}
+
+# Test to make sure nothing goes wrong and no memory is leaked if we 
+# select an illegal table-name (i.e a reserved name or the name of a
+# table that already exists).
+#
+do_test vtab1-1.7.1 {
+  catchsql {
+    CREATE VIRTUAL TABLE sqlite_master USING echo;
+  }
+} {1 {object name reserved for internal use: sqlite_master}}
+do_test vtab1-1.7.2 {
+  catchsql {
+    CREATE VIRTUAL TABLE IF NOT EXISTS sqlite_master USING echo;
+  }
+} {1 {object name reserved for internal use: sqlite_master}}
+do_test vtab1-1.8.1 {
+  catchsql {
+    CREATE TABLE treal(a, b, c);
+    CREATE VIRTUAL TABLE treal USING echo(treal);
+  }
+} {1 {table treal already exists}}
+do_test vtab1-1.8.2 {
+  catchsql {
+    CREATE VIRTUAL TABLE IF NOT EXISTS treal USING echo(treal);
+  }
+} {0 {}}
+do_test vtab1-1.9 {
+  execsql {
+    DROP TABLE treal;
+    SELECT name FROM sqlite_master ORDER BY 1
+  }
+} {}
+
+do_test vtab1-1.10 {
+  execsql {
+    CREATE TABLE treal(a, b, c);
+    CREATE VIRTUAL TABLE techo USING echo(treal);
+  }
+  db close
+  sqlite3 db test.db
+  catchsql {
+    SELECT * FROM techo;
+  }
+} {1 {no such module: echo}}
+do_test vtab1-1.11 {
+  catchsql {
+    INSERT INTO techo VALUES(1, 2, 3);
+  }
+} {1 {no such module: echo}}
+do_test vtab1-1.12 {
+  catchsql {
+    UPDATE techo SET a = 10;
+  }
+} {1 {no such module: echo}}
+do_test vtab1-1.13 {
+  catchsql {
+    DELETE FROM techo;
+  }
+} {1 {no such module: echo}}
+do_test vtab1-1.14 {
+  catchsql {
+    PRAGMA table_info(techo)
+  }
+} {1 {no such module: echo}}
+do_test vtab1-1.15 {
+  catchsql {
+    DROP TABLE techo;
+  }
+} {1 {no such module: echo}}
+
+register_echo_module [sqlite3_connection_pointer db]
+register_echo_module [sqlite3_connection_pointer db]
+
+# Test an error message returned from a v-table constructor.
+#
+do_test vtab1-1.16 {
+  execsql {
+    DROP TABLE techo;
+    CREATE TABLE logmsg(log);
+  }
+  catchsql {
+    CREATE VIRTUAL TABLE techo USING echo(treal, logmsg);
+  }
+} {1 {table 'logmsg' already exists}}
+
+do_test vtab1-1.17 {
+  execsql {
+    DROP TABLE treal;
+    DROP TABLE logmsg;
+    SELECT sql FROM sqlite_master;
+  }
+} {}
+
+#----------------------------------------------------------------------
+# Test cases vtab1.2.*
+#
+# At this point, the database is completely empty. The echo module
+# has already been registered.
+
+# If a single argument is passed to the echo module during table
+# creation, it is assumed to be the name of a table in the same
+# database. The echo module attempts to set the schema of the
+# new virtual table to be the same as the existing database table.
+#
+do_test vtab1-2.1 {
+  execsql {
+    CREATE TABLE template(a, b, c);
+  }
+  execsql { PRAGMA table_info(template); }
+} [list         \
+  0 a {} 0 {} 0 \
+  1 b {} 0 {} 0 \
+  2 c {} 0 {} 0 \
+]
+do_test vtab1-2.2 {
+  execsql {
+    CREATE VIRTUAL TABLE t1 USING echo(template);
+  }
+  execsql { PRAGMA table_info(t1); }
+} [list         \
+  0 a {} 0 {} 0 \
+  1 b {} 0 {} 0 \
+  2 c {} 0 {} 0 \
+]
+
+# Test that the database can be unloaded. This should invoke the xDisconnect()
+# callback for the successfully create virtual table (t1).
+#
+do_test vtab1-2.3 {
+  set echo_module [list]
+  db close
+  set echo_module
+} [list xDisconnect]
+
+# Re-open the database. This should not cause any virtual methods to 
+# be called. The invocation of xConnect() is delayed until the virtual
+# table schema is first required by the compiler.
+#
+do_test vtab1-2.4 {
+  set echo_module [list]
+  sqlite3 db test.db
+  db cache size 0
+  set echo_module
+} {}
+
+# Try to query the virtual table schema. This should fail, as the
+# echo module has not been registered with this database connection.
+#
+do_test vtab1.2.6 {
+  catchsql { PRAGMA table_info(t1); }
+} {1 {no such module: echo}}
+
+# Register the module
+register_echo_module [sqlite3_connection_pointer db]
+
+# Try to query the virtual table schema again. This time it should
+# invoke the xConnect method and succeed.
+#
+do_test vtab1.2.7 {
+  execsql { PRAGMA table_info(t1); }
+} [list         \
+  0 a {} 0 {} 0 \
+  1 b {} 0 {} 0 \
+  2 c {} 0 {} 0 \
+]
+do_test vtab1.2.8 {
+  set echo_module
+} {xConnect echo main t1 template}
+
+# Drop table t1. This should cause the xDestroy (but not xDisconnect) method 
+# to be invoked.
+do_test vtab1-2.5 {
+  set echo_module ""
+  execsql {
+    DROP TABLE t1;
+  }
+  set echo_module
+} {xDestroy}
+
+do_test vtab1-2.6 {
+  execsql { 
+    PRAGMA table_info(t1); 
+  }
+} {}
+do_test vtab1-2.7 {
+  execsql {
+    SELECT sql FROM sqlite_master;
+  }
+} [list {CREATE TABLE template(a, b, c)}]
+# Clean up other test artifacts:
+do_test vtab1-2.8 {
+  execsql { 
+    DROP TABLE template;
+    SELECT sql FROM sqlite_master;
+  }
+} [list]
+
+#----------------------------------------------------------------------
+# Test case vtab1-3 test table scans and the echo module's 
+# xBestIndex/xFilter handling of WHERE conditions.
+
+do_test vtab1-3.1 {
+  set echo_module ""
+  execsql {
+    CREATE TABLE treal(a INTEGER, b INTEGER, c); 
+    CREATE INDEX treal_idx ON treal(b);
+    CREATE VIRTUAL TABLE t1 USING echo(treal);
+  }
+  set echo_module
+} [list xCreate echo main t1 treal   \
+        xSync   echo(treal)  \
+        xCommit echo(treal)  \
+]
+
+# Test that a SELECT on t1 doesn't crash. No rows are returned
+# because the underlying real table is currently empty.
+#
+do_test vtab1-3.2 {
+  execsql {
+    SELECT a, b, c FROM t1;
+  }
+} {}
+
+# Put some data into the table treal. Then try a few simple SELECT 
+# statements on t1.
+#
+do_test vtab1-3.3 {
+  execsql {
+    INSERT INTO treal VALUES(1, 2, 3);
+    INSERT INTO treal VALUES(4, 5, 6);
+    SELECT * FROM t1;
+  }
+} {1 2 3 4 5 6}
+do_test vtab1-3.4 {
+  execsql {
+    SELECT a FROM t1;
+  }
+} {1 4}
+do_test vtab1-3.5 {
+  execsql {
+    SELECT rowid FROM t1;
+  }
+} {1 2}
+do_test vtab1-3.6 {
+  set echo_module ""
+  execsql {
+    SELECT * FROM t1;
+  }
+} {1 2 3 4 5 6}
+do_test vtab1-3.7 {
+  execsql {
+    SELECT rowid, * FROM t1;
+  }
+} {1 1 2 3 2 4 5 6}
+do_test vtab1-3.8.1 {
+  execsql {
+    SELECT a AS d, b AS e, c AS f FROM t1;
+  }
+} {1 2 3 4 5 6}
+
+# Execute some SELECT statements with WHERE clauses on the t1 table.
+# Then check the echo_module variable (written to by the module methods
+# in test8.c) to make sure the xBestIndex() and xFilter() methods were
+# called correctly.
+#
+do_test vtab1-3.8.2 {
+  set echo_module ""
+  execsql {
+    SELECT * FROM t1;
+  }
+  set echo_module
+} [list xBestIndex {SELECT rowid, a, b, c FROM 'treal'} \
+        xFilter    {SELECT rowid, a, b, c FROM 'treal'} ]
+do_test vtab1-3.9 {
+  set echo_module ""
+  execsql {
+    SELECT * FROM t1 WHERE b = 5;
+  }
+} {4 5 6}
+do_test vtab1-3.10 {
+  set echo_module
+} [list xBestIndex {SELECT rowid, a, b, c FROM 'treal' WHERE b = ?}   \
+        xFilter    {SELECT rowid, a, b, c FROM 'treal' WHERE b = ?} 5 ]
+do_test vtab1-3.10 {
+  set echo_module ""
+  execsql {
+    SELECT * FROM t1 WHERE b >= 5 AND b <= 10;
+  }
+} {4 5 6}
+do_test vtab1-3.11 {
+  set echo_module
+} [list xBestIndex {SELECT rowid, a, b, c FROM 'treal' WHERE b >= ? AND b <= ?}\
+        xFilter    {SELECT rowid, a, b, c FROM 'treal' WHERE b >= ? AND b <= ?}\
+        5 10 ]
+do_test vtab1-3.12 {
+  set echo_module ""
+  execsql {
+    SELECT * FROM t1 WHERE b BETWEEN 2 AND 10;
+  }
+} {1 2 3 4 5 6}
+do_test vtab1-3.13 {
+  set echo_module
+} [list xBestIndex {SELECT rowid, a, b, c FROM 'treal' WHERE b >= ? AND b <= ?}\
+        xFilter    {SELECT rowid, a, b, c FROM 'treal' WHERE b >= ? AND b <= ?}\
+        2 10 ]
+
+# Add a function for the MATCH operator. Everything always matches!
+#proc test_match {lhs rhs} {
+#  lappend ::echo_module MATCH $lhs $rhs
+#  return 1
+#}
+#db function match test_match
+
+set echo_module ""
+do_test vtab1-3.12 {
+  set echo_module ""
+  catchsql {
+    SELECT * FROM t1 WHERE a MATCH 'string';
+  }
+} {1 {unable to use function MATCH in the requested context}}
+do_test vtab1-3.13 {
+  set echo_module
+} [list xBestIndex {SELECT rowid, a, b, c FROM 'treal'} \
+        xFilter    {SELECT rowid, a, b, c FROM 'treal'}]
+ifcapable subquery {
+# The echo module uses a subquery internally to implement the MATCH operator.
+do_test vtab1-3.14 {
+  set echo_module ""
+  execsql {
+    SELECT * FROM t1 WHERE b MATCH 'string';
+  }
+} {}
+do_test vtab1-3.15 {
+  set echo_module
+} [list xBestIndex \
+        {SELECT rowid, a, b, c FROM 'treal' WHERE b LIKE (SELECT '%'||?||'%')} \
+        xFilter \
+        {SELECT rowid, a, b, c FROM 'treal' WHERE b LIKE (SELECT '%'||?||'%')} \
+        string ]
+}; #ifcapable subquery
+
+#----------------------------------------------------------------------
+# Test case vtab1-3 test table scans and the echo module's 
+# xBestIndex/xFilter handling of ORDER BY clauses.
+
+# This procedure executes the SQL.  Then it checks to see if the OP_Sort
+# opcode was executed.  If an OP_Sort did occur, then "sort" is appended
+# to the result.  If no OP_Sort happened, then "nosort" is appended.
+#
+# This procedure is used to check to make sure sorting is or is not
+# occurring as expected.
+#
+proc cksort {sql} {
+  set ::sqlite_sort_count 0
+  set data [execsql $sql]
+  if {$::sqlite_sort_count} {set x sort} {set x nosort}
+  lappend data $x
+  return $data
+}
+
+do_test vtab1-4.1 {
+  set echo_module ""
+  cksort {
+    SELECT b FROM t1 ORDER BY b;
+  }
+} {2 5 nosort}
+do_test vtab1-4.2 {
+  set echo_module
+} [list xBestIndex {SELECT rowid, NULL, b, NULL FROM 'treal' ORDER BY b ASC} \
+        xFilter    {SELECT rowid, NULL, b, NULL FROM 'treal' ORDER BY b ASC} ]
+do_test vtab1-4.3 {
+  set echo_module ""
+  cksort {
+    SELECT b FROM t1 ORDER BY b DESC;
+  }
+} {5 2 nosort}
+do_test vtab1-4.4 {
+  set echo_module
+} [list xBestIndex {SELECT rowid, NULL, b, NULL FROM 'treal' ORDER BY b DESC} \
+        xFilter    {SELECT rowid, NULL, b, NULL FROM 'treal' ORDER BY b DESC} ]
+do_test vtab1-4.3 {
+  set echo_module ""
+  cksort {
+    SELECT b FROM t1 ORDER BY b||'';
+  }
+} {2 5 sort}
+do_test vtab1-4.4 {
+  set echo_module
+} [list xBestIndex {SELECT rowid, NULL, b, NULL FROM 'treal'} \
+        xFilter    {SELECT rowid, NULL, b, NULL FROM 'treal'} ]
+
+execsql {
+  DROP TABLE t1;
+  DROP TABLE treal;
+}
+
+#----------------------------------------------------------------------
+# Test cases vtab1-5 test SELECT queries that include joins on virtual 
+# tables.
+
+proc filter {log} {
+  set out [list]
+  for {set ii 0} {$ii < [llength $log]} {incr ii} {
+    if {[lindex $log $ii] eq "xFilter"} {
+      lappend out xFilter
+      lappend out [lindex $log [expr $ii+1]]
+    }
+  }
+  return $out
+}
+
+do_test vtab1-5-1 {
+  execsql { 
+    CREATE TABLE t1(a, b, c);
+    CREATE TABLE t2(d, e, f);
+    INSERT INTO t1 VALUES(1, 'red', 'green');
+    INSERT INTO t1 VALUES(2, 'blue', 'black');
+    INSERT INTO t2 VALUES(1, 'spades', 'clubs');
+    INSERT INTO t2 VALUES(2, 'hearts', 'diamonds');
+    CREATE VIRTUAL TABLE et1 USING echo(t1);
+    CREATE VIRTUAL TABLE et2 USING echo(t2);
+  }
+} {}
+
+do_test vtab1-5-2 {
+  set echo_module ""
+  execsql {
+    SELECT * FROM et1, et2;
+  }
+} [list \
+  1 red green 1 spades clubs     \
+  1 red green 2 hearts diamonds  \
+  2 blue black 1 spades clubs    \
+  2 blue black 2 hearts diamonds \
+]
+do_test vtab1-5-3 {
+  filter $echo_module
+} [list \
+  xFilter {SELECT rowid, a, b, c FROM 't1'} \
+  xFilter {SELECT rowid, d, e, f FROM 't2'} \
+  xFilter {SELECT rowid, d, e, f FROM 't2'} \
+]
+do_test vtab1-5-4 {
+  set echo_module ""
+  execsql {
+    SELECT * FROM et1, et2 WHERE et2.d = 2;
+  }
+} [list \
+  1 red green 2 hearts diamonds  \
+  2 blue black 2 hearts diamonds \
+]
+do_test vtab1-5-5 {
+  filter $echo_module
+} [list \
+  xFilter {SELECT rowid, a, b, c FROM 't1'} \
+  xFilter {SELECT rowid, d, e, f FROM 't2'} \
+  xFilter {SELECT rowid, d, e, f FROM 't2'} \
+]
+do_test vtab1-5-6 {
+  execsql {
+    CREATE INDEX i1 ON t2(d);
+  }
+
+  db close
+  sqlite3 db test.db
+  register_echo_module [sqlite3_connection_pointer db]
+
+  set ::echo_module ""
+  execsql {
+    SELECT * FROM et1, et2 WHERE et2.d = 2;
+  }
+} [list \
+  1 red green 2 hearts diamonds  \
+  2 blue black 2 hearts diamonds \
+]
+do_test vtab1-5-7 {
+  filter $::echo_module
+} [list \
+  xFilter {SELECT rowid, a, b, c FROM 't1'}             \
+  xFilter {SELECT rowid, d, e, f FROM 't2' WHERE d = ?} \
+  xFilter {SELECT rowid, d, e, f FROM 't2' WHERE d = ?} \
+]
+
+execsql {
+  DROP TABLE t1;
+  DROP TABLE t2;
+  DROP TABLE et1;
+  DROP TABLE et2;
+}
+
+#----------------------------------------------------------------------
+# Test cases vtab1-6 test INSERT, UPDATE and DELETE operations 
+# on virtual tables.
+do_test vtab1-6-1 {
+  execsql { SELECT sql FROM sqlite_master }
+} {}
+do_test vtab1-6-2 {
+  execsql {
+    CREATE TABLE treal(a PRIMARY KEY, b, c);
+    CREATE VIRTUAL TABLE techo USING echo(treal);
+    SELECT name FROM sqlite_master WHERE type = 'table';
+  }
+} {treal techo}
+do_test vtab1-6-3.1.1 {
+  execsql {
+    PRAGMA count_changes=ON;
+    INSERT INTO techo VALUES(1, 2, 3);
+  }
+} {1}
+do_test vtab1-6-3.1.2 {
+  db changes
+} {1}
+do_test vtab1-6-3.2 {
+  execsql {
+    SELECT * FROM techo;
+  }
+} {1 2 3}
+do_test vtab1-6-4.1 {
+  execsql {
+    UPDATE techo SET a = 5;
+  }
+  db changes
+} {1}
+do_test vtab1-6-4.2 {
+  execsql {
+    SELECT * FROM techo;
+  }
+} {5 2 3}
+do_test vtab1-6-4.3 {
+  execsql {
+    UPDATE techo SET a=6 WHERE a<0;
+  }
+  db changes
+} {0}
+do_test vtab1-6-4.4 {
+  execsql {
+    SELECT * FROM techo;
+  }
+} {5 2 3}
+
+do_test vtab1-6-5.1 {
+ execsql {
+   UPDATE techo set a = a||b||c;
+ }
+ db changes
+} {1}
+do_test vtab1-6-5.2 {
+ execsql {
+   SELECT * FROM techo;
+ }
+} {523 2 3}
+
+do_test vtab1-6-6.1 {
+  execsql {
+    UPDATE techo set rowid = 10;
+  }
+  db changes
+} {1}
+do_test vtab1-6-6.2 {
+  execsql {
+    SELECT rowid FROM techo;
+  }
+} {10}
+
+do_test vtab1-6-7.1.1 {
+  execsql {
+    INSERT INTO techo VALUES(11,12,13);
+  }
+} {1}
+do_test vtab1-6-7.1.2 {
+  db changes
+} {1}
+do_test vtab1-6-7.2 {
+  execsql {
+    SELECT * FROM techo ORDER BY a;
+  }
+} {11 12 13 523 2 3}
+do_test vtab1-6-7.3 {
+  execsql {
+    UPDATE techo SET b=b+1000
+  }
+  db changes
+} {2}
+do_test vtab1-6-7.4 {
+  execsql {
+    SELECT * FROM techo ORDER BY a;
+  }
+} {11 1012 13 523 1002 3}
+
+
+do_test vtab1-6-8.1 {
+  execsql {
+    DELETE FROM techo WHERE a=5;
+  }
+  db changes
+} {0}
+do_test vtab1-6-8.2 {
+  execsql {
+    SELECT * FROM techo ORDER BY a;
+  }
+} {11 1012 13 523 1002 3}
+do_test vtab1-6-8.3 {
+  execsql {
+    DELETE FROM techo;
+  }
+  db changes
+} {2}
+do_test vtab1-6-8.4 {
+  execsql {
+    SELECT * FROM techo ORDER BY a;
+  }
+} {}
+execsql {PRAGMA count_changes=OFF}
+
+forcedelete test2.db
+forcedelete test2.db-journal
+sqlite3 db2 test2.db
+execsql {
+  CREATE TABLE techo(a PRIMARY KEY, b, c);
+} db2
+proc check_echo_table {tn} {
+  set ::data1 [execsql {SELECT rowid, * FROM techo}]
+  set ::data2 [execsql {SELECT rowid, * FROM techo} db2]
+  do_test $tn {
+    string equal $::data1 $::data2
+  } 1
+}
+set tn 0
+foreach stmt [list \
+  {INSERT INTO techo VALUES('abc', 'def', 'ghi')}                        \
+  {INSERT INTO techo SELECT a||'.'||rowid, b, c FROM techo}              \
+  {INSERT INTO techo SELECT a||'x'||rowid, b, c FROM techo}              \
+  {INSERT INTO techo SELECT a||'y'||rowid, b, c FROM techo}              \
+  {DELETE FROM techo WHERE (oid % 3) = 0}                                \
+  {UPDATE techo set rowid = 100 WHERE rowid = 1}                         \
+  {INSERT INTO techo(a, b) VALUES('hello', 'world')}                     \
+  {DELETE FROM techo}                                                    \
+] {
+  execsql $stmt
+  execsql $stmt db2
+  check_echo_table vtab1-6.8.[incr tn]
+}
+
+db2 close
+
+
+
+#----------------------------------------------------------------------
+# Test cases vtab1-7 tests that the value returned by 
+# sqlite3_last_insert_rowid() is set correctly when rows are inserted
+# into virtual tables.
+do_test vtab1.7-1 {
+  execsql {
+    CREATE TABLE real_abc(a PRIMARY KEY, b, c);
+    CREATE VIRTUAL TABLE echo_abc USING echo(real_abc);
+  }
+} {}
+do_test vtab1.7-2 {
+  execsql {
+    INSERT INTO echo_abc VALUES(1, 2, 3);
+    SELECT last_insert_rowid();
+  }
+} {1}
+do_test vtab1.7-3 {
+  execsql {
+    INSERT INTO echo_abc(rowid) VALUES(31427);
+    SELECT last_insert_rowid();
+  }
+} {31427}
+do_test vtab1.7-4 {
+  execsql {
+    INSERT INTO echo_abc SELECT a||'.v2', b, c FROM echo_abc;
+    SELECT last_insert_rowid();
+  }
+} {31429}
+do_test vtab1.7-5 {
+  execsql {
+    SELECT rowid, a, b, c FROM echo_abc
+  }
+} [list 1     1    2  3  \
+        31427 {}   {} {} \
+        31428 1.v2 2  3  \
+        31429 {}  {} {}  \
+]
+
+# Now test that DELETE and UPDATE operations do not modify the value.
+do_test vtab1.7-6 {
+  execsql {
+    UPDATE echo_abc SET c = 5 WHERE b = 2;
+    SELECT last_insert_rowid();
+  }
+} {31429}
+do_test vtab1.7-7 {
+  execsql {
+    UPDATE echo_abc SET rowid = 5 WHERE rowid = 1;
+    SELECT last_insert_rowid();
+  }
+} {31429}
+do_test vtab1.7-8 {
+  execsql {
+    DELETE FROM echo_abc WHERE b = 2;
+    SELECT last_insert_rowid();
+  }
+} {31429}
+do_test vtab1.7-9 {
+  execsql {
+    SELECT rowid, a, b, c FROM echo_abc
+  }
+} [list 31427 {} {} {} \
+        31429 {} {} {} \
+]
+do_test vtab1.7-10 {
+  execsql {
+    DELETE FROM echo_abc WHERE b = 2;
+    SELECT last_insert_rowid();
+  }
+} {31429}
+do_test vtab1.7-11 {
+  execsql {
+    SELECT rowid, a, b, c FROM real_abc
+  }
+} [list 31427 {} {} {} \
+        31429 {} {} {} \
+]
+do_test vtab1.7-12 {
+  execsql {
+    DELETE FROM echo_abc;
+    SELECT last_insert_rowid();
+  }
+} {31429}
+do_test vtab1.7-13 {
+  execsql {
+    SELECT rowid, a, b, c FROM real_abc
+  }
+} {}
+
+# PRAGMA index_info and index_xinfo are no-ops on a virtual table
+do_test vtab1.7-14 {
+  execsql {
+    PRAGMA index_info('echo_abc');
+    PRAGMA index_xinfo('echo_abc');
+  }
+} {}
+
+ifcapable attach {
+  do_test vtab1.8-1 {
+    set echo_module ""
+    execsql {
+      ATTACH 'test2.db' AS aux;
+      CREATE VIRTUAL TABLE aux.e2 USING echo(real_abc);
+    }
+    set echo_module
+  } [list xCreate echo aux e2 real_abc   \
+          xSync   echo(real_abc)         \
+          xCommit echo(real_abc)         \
+  ]
+}
+do_test vtab1.8-2 {
+  catchsql {
+    DROP TABLE aux.e2;
+  }
+  execsql {
+    DROP TABLE treal;
+    DROP TABLE techo;
+    DROP TABLE echo_abc;
+    DROP TABLE real_abc;
+  }
+} {}
+
+do_test vtab1.9-1 {
+  set echo_module ""
+  execsql {
+    CREATE TABLE r(a, b, c);
+    CREATE VIRTUAL TABLE e USING echo(r, e_log);
+    SELECT name FROM sqlite_master;
+  }
+} {r e e_log}
+do_test vtab1.9-2 {
+  execsql {
+    DROP TABLE e;
+    SELECT name FROM sqlite_master;
+  }
+} {r}
+
+do_test vtab1.9-3 {
+  set echo_module ""
+  execsql {
+    CREATE VIRTUAL TABLE e USING echo(r, e_log, virtual 1 2 3 varchar(32));
+  }
+  set echo_module
+} [list                                                        \
+  xCreate echo main e r e_log {virtual 1 2 3 varchar(32)}      \
+  xSync echo(r)                                                \
+  xCommit echo(r)                                              \
+]
+
+do_test vtab1.10-1 {
+  execsql {
+    CREATE TABLE del(d);
+    CREATE VIRTUAL TABLE e2 USING echo(del);
+  }
+  db close
+  sqlite3 db test.db
+  register_echo_module [sqlite3_connection_pointer db]
+  execsql {
+    DROP TABLE del;
+  }
+  catchsql {
+    SELECT * FROM e2;
+  }
+} {1 {vtable constructor failed: e2}}
+do_test vtab1.10-2 {
+  set rc [catch {
+    set ptr [sqlite3_connection_pointer db]
+    sqlite3_declare_vtab $ptr {CREATE TABLE abc(a, b, c)}
+  } msg]
+  list $rc $msg
+} {1 {bad parameter or other API misuse}}
+do_test vtab1.10-3 {
+  set ::echo_module_begin_fail r
+  catchsql {
+    INSERT INTO e VALUES(1, 2, 3);
+  }
+} {1 {SQL logic error}}
+do_test vtab1.10-4 {
+  catch {execsql {
+    EXPLAIN SELECT * FROM e WHERE rowid = 2;
+    EXPLAIN QUERY PLAN SELECT * FROM e WHERE rowid = 2 ORDER BY rowid;
+  }}
+} {0}
+
+do_test vtab1.10-5 {
+  set echo_module ""
+  execsql {
+    SELECT * FROM e WHERE rowid||'' MATCH 'pattern';
+  }
+  set echo_module
+} [list \
+  xBestIndex {SELECT rowid, a, b, c FROM 'r'} \
+  xFilter {SELECT rowid, a, b, c FROM 'r'}    \
+]
+proc match_func {args} {return ""}
+do_test vtab1.10-6 {
+  set echo_module ""
+  sqlite_delete_function db match
+  db function match match_func
+  execsql {
+    SELECT * FROM e WHERE match('pattern', rowid, 'pattern2');
+  }
+  set echo_module
+} [list \
+  xBestIndex {SELECT rowid, a, b, c FROM 'r'} \
+  xFilter {SELECT rowid, a, b, c FROM 'r'}    \
+]
+
+
+# Testing the xFindFunction interface
+#
+catch {rename ::echo_glob_overload {}}
+do_test vtab1.11-1 {
+  execsql {
+    INSERT INTO r(a,b,c) VALUES(1,'?',99);
+    INSERT INTO r(a,b,c) VALUES(2,3,99);
+    SELECT a GLOB b FROM e
+  }
+} {1 0}
+proc ::echo_glob_overload {a b} {
+ return [list $b $a]
+}
+do_test vtab1.11-2 {
+  execsql {
+    SELECT a like 'b' FROM e
+  }
+} {0 0}
+do_test vtab1.11-3 {
+  execsql {
+    SELECT a glob '2' FROM e
+  }
+} {{1 2} {2 2}}
+do_test vtab1.11-4 {
+  execsql {
+    SELECT  glob('2',a) FROM e
+  }
+} {0 1}
+do_test vtab1.11-5 {
+  execsql {
+    SELECT  glob(a,'2') FROM e
+  }
+} {{2 1} {2 2}}
+ 
+#----------------------------------------------------------------------
+# Test the outcome if a constraint is encountered half-way through
+# a multi-row INSERT that is inside a transaction
+#
+do_test vtab1.12-1 {
+  execsql {
+    CREATE TABLE b(a, b, c);
+    CREATE TABLE c(a UNIQUE, b, c);
+    INSERT INTO b VALUES(1, 'A', 'B');
+    INSERT INTO b VALUES(2, 'C', 'D');
+    INSERT INTO b VALUES(3, 'E', 'F');
+    INSERT INTO c VALUES(3, 'G', 'H');
+    CREATE VIRTUAL TABLE echo_c USING echo(c);
+  }
+} {}
+
+# First test outside of a transaction.
+do_test vtab1.12-2 {
+  catchsql { INSERT INTO echo_c SELECT * FROM b; }
+} {1 {echo-vtab-error: UNIQUE constraint failed: c.a}}
+do_test vtab1.12-2.1 {
+  sqlite3_errmsg db
+} {echo-vtab-error: UNIQUE constraint failed: c.a}
+do_test vtab1.12-3 {
+  execsql { SELECT * FROM c }
+} {3 G H}
+
+# Now the real test - wrapped in a transaction.
+do_test vtab1.12-4 {
+  execsql  {BEGIN}
+  catchsql { INSERT INTO echo_c SELECT * FROM b; }
+} {1 {echo-vtab-error: UNIQUE constraint failed: c.a}}
+do_test vtab1.12-5 {
+  execsql { SELECT * FROM c }
+} {3 G H}
+do_test vtab1.12-6 {
+  execsql { COMMIT }
+  execsql { SELECT * FROM c }
+} {3 G H}
+
+# At one point (ticket #2759), a WHERE clause of the form "<column> IS NULL"
+# on a virtual table was causing an assert() to fail in the compiler.
+#
+# "IS NULL" clauses should not be passed through to the virtual table
+# implementation. They are handled by SQLite after the vtab returns its
+# data.
+#
+do_test vtab1.13-1 {
+  execsql { 
+    SELECT * FROM echo_c WHERE a IS NULL 
+  }
+} {}
+do_test vtab1.13-2 {
+  execsql { 
+    INSERT INTO c VALUES(NULL, 15, 16);
+    SELECT * FROM echo_c WHERE a IS NULL 
+  }
+} {{} 15 16}
+do_test vtab1.13-3 {
+  execsql { 
+    INSERT INTO c VALUES(15, NULL, 16);
+    SELECT * FROM echo_c WHERE b IS NULL 
+  }
+} {15 {} 16}
+do_test vtab1.13-4 {
+  unset -nocomplain null
+  execsql { 
+    SELECT * FROM echo_c WHERE b IS $null
+  }
+} {15 {} 16}
+do_test vtab1.13-5 {
+  execsql { 
+    SELECT * FROM echo_c WHERE b IS NULL AND a = 15;
+  }
+} {15 {} 16}
+do_test vtab1.13-6 {
+  execsql { 
+    SELECT * FROM echo_c WHERE NULL IS b AND a IS 15;
+  }
+} {15 {} 16}
+
+
+do_test vtab1-14.001 {
+  execsql {SELECT rowid, * FROM echo_c WHERE +rowid IN (1,2,3)}
+} {1 3 G H 2 {} 15 16 3 15 {} 16}
+do_test vtab1-14.002 {
+  execsql {SELECT rowid, * FROM echo_c WHERE rowid IN (1,2,3)}
+} {1 3 G H 2 {} 15 16 3 15 {} 16}
+do_test vtab1-14.003 {
+  execsql {SELECT rowid, * FROM echo_c WHERE +rowid IN (0,1,5,2,'a',3,NULL)}
+} {1 3 G H 2 {} 15 16 3 15 {} 16}
+do_test vtab1-14.004 {
+  execsql {SELECT rowid, * FROM echo_c WHERE rowid IN (0,1,5,'a',2,3,NULL)}
+} {1 3 G H 2 {} 15 16 3 15 {} 16}
+do_test vtab1-14.005 {
+  execsql {SELECT rowid, * FROM echo_c WHERE rowid NOT IN (0,1,5,'a',2,3)}
+} {}
+do_test vtab1-14.006 {
+  execsql {SELECT rowid, * FROM echo_c WHERE rowid NOT IN (0,5,'a',2,3)}
+} {1 3 G H}
+do_test vtab1-14.007 {
+  execsql {SELECT rowid, * FROM echo_c WHERE +rowid NOT IN (0,5,'a',2,3,NULL)}
+} {}
+do_test vtab1-14.008 {
+  execsql {SELECT rowid, * FROM echo_c WHERE rowid NOT IN (0,5,'a',2,3,NULL)}
+} {}
+do_test vtab1-14.011 {
+  execsql {SELECT * FROM echo_c WHERE +a IN (1,3,8,'x',NULL,15,24)}
+} {3 G H 15 {} 16}
+do_test vtab1-14.012 {
+  execsql {SELECT * FROM echo_c WHERE a IN (1,3,8,'x',NULL,15,24)}
+} {3 G H 15 {} 16}
+do_test vtab1-14.013 {
+  execsql {SELECT * FROM echo_c WHERE a NOT IN (1,8,'x',15,24)}
+} {3 G H}
+do_test vtab1-14.014 {
+  execsql {SELECT * FROM echo_c WHERE a NOT IN (1,8,'x',NULL,15,24)}
+} {}
+do_test vtab1-14.015 {
+  execsql {SELECT * FROM echo_c WHERE +a NOT IN (1,8,'x',NULL,15,24)}
+} {}
+
+
+
+#do_test vtab1-14.1 {
+#  execsql { DELETE FROM c }
+#  set echo_module ""
+#  execsql { SELECT * FROM echo_c WHERE rowid IN (1, 2, 3) }
+#  set echo_module
+#} {/.*xBestIndex {SELECT rowid, . FROM 'c' WHERE rowid = .} xFilter {SELECT rowid, . FROM 'c'} 1/}
+
+do_test vtab1-14.2 {
+  set echo_module ""
+  execsql { SELECT * FROM echo_c WHERE rowid = 1 }
+  set echo_module
+} [list xBestIndex {SELECT rowid, a, b, c FROM 'c' WHERE rowid = ?} \
+        xFilter {SELECT rowid, a, b, c FROM 'c' WHERE rowid = ?} 1]
+
+do_test vtab1-14.3 {
+  set echo_module ""
+  execsql { SELECT * FROM echo_c WHERE a = 1 }
+  set echo_module
+} [list xBestIndex {SELECT rowid, a, b, c FROM 'c' WHERE a = ?} \
+        xFilter {SELECT rowid, a, b, c FROM 'c' WHERE a = ?} 1]
+
+#do_test vtab1-14.4 {
+#  set echo_module ""
+#  execsql { SELECT * FROM echo_c WHERE a IN (1, 2) }
+#  set echo_module
+#} {/xBestIndex {SELECT rowid, . FROM 'c' WHERE a = .} xFilter {SELECT rowid, . FROM 'c' WHERE a = .} 1/}
+
+do_test vtab1-15.1 {
+  execsql {
+    CREATE TABLE t1(a, b, c);
+    CREATE VIRTUAL TABLE echo_t1 USING echo(t1);
+  }
+} {}
+do_test vtab1-15.2 {
+  execsql {
+    INSERT INTO echo_t1(rowid) VALUES(45);
+    SELECT rowid, * FROM echo_t1;
+  }
+} {45 {} {} {}}
+do_test vtab1-15.3 {
+  execsql {
+    INSERT INTO echo_t1(rowid) VALUES(NULL);
+    SELECT rowid, * FROM echo_t1;
+  }
+} {45 {} {} {} 46 {} {} {}}
+do_test vtab1-15.4 {
+  catchsql {
+    INSERT INTO echo_t1(rowid) VALUES('new rowid');
+  }
+} {1 {datatype mismatch}}
+
+# The following tests - vtab1-16.* - are designed to test that setting 
+# sqlite3_vtab.zErrMsg variable can be used by the vtab interface to 
+# return an error message to the user.
+# 
+do_test vtab1-16.1 {
+  execsql {
+    CREATE TABLE t2(a PRIMARY KEY, b, c);
+    INSERT INTO t2 VALUES(1, 2, 3);
+    INSERT INTO t2 VALUES(4, 5, 6);
+    CREATE VIRTUAL TABLE echo_t2 USING echo(t2);
+  }
+} {}
+
+set tn 2
+foreach method [list \
+    xBestIndex       \
+    xOpen            \
+    xFilter          \
+    xNext            \
+    xColumn          \
+    xRowid           \
+] {
+  do_test vtab1-16.$tn {
+    set echo_module_fail($method,t2) "the $method method has failed"
+    catchsql { SELECT rowid, * FROM echo_t2 WHERE a >= 1 }
+  } "1 {echo-vtab-error: the $method method has failed}"
+  unset echo_module_fail($method,t2)
+  incr tn
+}
+
+foreach method [list \
+  xUpdate            \
+  xBegin             \
+  xSync              \
+] {
+  do_test vtab1-16.$tn {
+    set echo_module_fail($method,t2) "the $method method has failed"
+    catchsql { INSERT INTO echo_t2 VALUES(7, 8, 9) }
+  } "1 {echo-vtab-error: the $method method has failed}"
+  unset echo_module_fail($method,t2)
+  incr tn
+}
+
+ifcapable altertable {
+  do_test vtab1-16.$tn {
+    set echo_module_fail(xRename,t2) "the xRename method has failed"
+    catchsql { ALTER TABLE echo_t2 RENAME TO another_name }
+  } "1 {echo-vtab-error: the xRename method has failed}"
+  unset echo_module_fail(xRename,t2)
+  incr tn
+}
+
+# The following test case exposes an instance in sqlite3_declare_vtab()
+# an error message was set using a call similar to sqlite3_mprintf(zErr),
+# where zErr is an arbitrary string. This is no good if the string contains
+# characters that can be mistaken for printf() formatting directives.
+#
+do_test vtab1-17.1 {
+  sqlite3_db_config db DEFENSIVE 0
+  execsql { 
+    PRAGMA writable_schema = 1;
+    INSERT INTO sqlite_master VALUES(
+      'table', 't3', 't3', 0, 'INSERT INTO "%s%s" VALUES(1)'
+    );
+  }
+  catchsql { CREATE VIRTUAL TABLE t4 USING echo(t3); }
+} {1 {vtable constructor failed: t4}}
+
+# This test verifies that ticket 48f29963 is fixed.
+#
+do_test vtab1-17.1 {
+  execsql { 
+    CREATE TABLE t5(a, b);
+    CREATE VIRTUAL TABLE e5 USING echo_v2(t5);
+    BEGIN;
+      INSERT INTO e5 VALUES(1, 2);
+      DROP TABLE e5;
+      SAVEPOINT one;
+      ROLLBACK TO one;
+    COMMIT;
+  }
+} {}
+
+do_test vtab1-17.2 {
+  execsql { DELETE FROM sqlite_master WHERE sql LIKE 'insert%' }
+} {}
+
+#-------------------------------------------------------------------------
+# The following tests - vtab1-18.* - test that the optimization of LIKE
+# constraints in where.c plays well with virtual tables.
+#
+#   18.1.*: Case-insensitive LIKE.
+#   18.2.*: Case-sensitive LIKE.
+#
+unset -nocomplain echo_module_begin_fail
+
+do_execsql_test 18.1.0 {
+  CREATE TABLE t6(a, b TEXT);
+  CREATE INDEX i6 ON t6(b, a);
+  INSERT INTO t6 VALUES(1, 'Peter');
+  INSERT INTO t6 VALUES(2, 'Andrew');
+  INSERT INTO t6 VALUES(3, '8James');
+  INSERT INTO t6 VALUES(4, '8John');
+  INSERT INTO t6 VALUES(5, 'Phillip');
+  INSERT INTO t6 VALUES(6, 'Bartholomew');
+  CREATE VIRTUAL TABLE e6 USING echo(t6);
+}
+
+ifcapable !icu {
+  foreach {tn sql res filter} {
+    1.1 "SELECT a FROM e6 WHERE b>'8James'" {4 2 6 1 5}
+      {xFilter {SELECT rowid, a, b FROM 't6' WHERE b > ?} 8James}
+  
+    1.2 "SELECT a FROM e6 WHERE b>='8' AND b<'9'" {3 4}
+      {xFilter {SELECT rowid, a, b FROM 't6' WHERE b >= ? AND b < ?} 8 9}
+  
+    1.3 "SELECT a FROM e6 WHERE b LIKE '8J%'" {3 4}
+      {xFilter {SELECT rowid, a, b FROM 't6' WHERE b >= ? AND b < ? AND b like ?} 8J 8k 8J%}
+  
+    1.4 "SELECT a FROM e6 WHERE b LIKE '8j%'" {3 4}
+      {xFilter {SELECT rowid, a, b FROM 't6' WHERE b >= ? AND b < ? AND b like ?} 8J 8k 8j%}
+  
+    1.5 "SELECT a FROM e6 WHERE b LIKE '8%'" {3 4}
+      {xFilter {SELECT rowid, a, b FROM 't6' WHERE b like ?} 8%}
+  } {
+    set echo_module {}
+    do_execsql_test 18.$tn.1 $sql $res
+    do_test         18.$tn.2 { lrange $::echo_module 2 end } $filter
+  }
+}
+
+do_execsql_test 18.2.0 {  PRAGMA case_sensitive_like = ON }
+foreach {tn sql res filter} {
+  2.1 "SELECT a FROM e6 WHERE b LIKE '8%'" {3 4}
+    {xFilter {SELECT rowid, a, b FROM 't6' WHERE b like ?} 8%}
+
+  2.2 "SELECT a FROM e6 WHERE b LIKE '8j%'" {}
+    {xFilter {SELECT rowid, a, b FROM 't6' WHERE b >= ? AND b < ? AND b like ?} 8j 8k 8j%}
+
+  2.3 "SELECT a FROM e6 WHERE b LIKE '8J%'" {3 4}
+    {xFilter {SELECT rowid, a, b FROM 't6' WHERE b >= ? AND b < ? AND b like ?} 8J 8K 8J%}
+} {
+  set echo_module {}
+  do_execsql_test 18.$tn.1 $sql $res
+  do_test         18.$tn.2 { lrange $::echo_module 2 end } $filter
+}
+do_execsql_test 18.2.x {  PRAGMA case_sensitive_like = OFF }
+
+#-------------------------------------------------------------------------
+# Test that it is ok to override and existing module.
+#
+do_test 19.1 {
+  sqlite3 db2 test.db
+  register_echo_module [sqlite3_connection_pointer db2]
+} SQLITE_OK
+do_test 19.2 {
+  register_echo_module [sqlite3_connection_pointer db2]
+} SQLITE_OK
+do_test 19.3 {
+  db2 close
+} {}
+
+#-------------------------------------------------------------------------
+# Test that the bug fixed by [b0c1ba655d69] really is fixed.
+#
+do_execsql_test 20.1 {
+  CREATE TABLE t7 (a, b);
+  CREATE TABLE t8 (c, d);
+  CREATE INDEX i2 ON t7(a);
+  CREATE INDEX i3 ON t7(b);
+  CREATE INDEX i4 ON t8(c);
+  CREATE INDEX i5 ON t8(d);
+
+  CREATE VIRTUAL TABLE t7v USING echo(t7);
+  CREATE VIRTUAL TABLE t8v USING echo(t8);
+}
+
+do_test 20.2 {
+  for {set i 0} {$i < 1000} {incr i} {
+    db eval {INSERT INTO t7 VALUES($i, $i)}
+    db eval {INSERT INTO t8 VALUES($i, $i)}
+  }
+} {}
+
+do_execsql_test 20.3 {
+  SELECT a, b FROM (
+      SELECT a, b FROM t7 WHERE a=11 OR b=12
+      UNION ALL
+      SELECT c, d FROM t8 WHERE c=5 OR d=6
+  )
+  ORDER BY 1, 2;
+} {5 5 6 6 11 11 12 12}
+
+do_execsql_test 20.4 {
+  SELECT a, b FROM (
+      SELECT a, b FROM t7v WHERE a=11 OR b=12
+      UNION ALL
+      SELECT c, d FROM t8v WHERE c=5 OR d=6
+  )
+  ORDER BY 1, 2;
+} {5 5 6 6 11 11 12 12}
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test 21.1 {
+  CREATE TABLE t9(a,b,c);
+  CREATE VIRTUAL TABLE t9v USING echo(t9);
+
+  INSERT INTO t9 VALUES(1,2,3);
+  INSERT INTO t9 VALUES(3,2,1);
+  INSERT INTO t9 VALUES(2,2,2);
+}
+
+do_execsql_test 21.2 {
+  SELECT * FROM t9v WHERE a<b;
+} {1 2 3}
+
+do_execsql_test 21.3 {
+  SELECT * FROM t9v WHERE a=b;
+} {2 2 2}
+
+#-------------------------------------------------------------------------
+# At one point executing a CREATE VIRTUAL TABLE statement that specified 
+# a database name but no virtual table arguments was causing an internal
+# buffer overread. Valgrind would report errors while running the following 
+# tests. Specifically:
+#
+#   CREATE VIRTUAL TABLE t1 USING fts4;          -- Ok - no db name.
+#   CREATE VIRTUAL TABLE main.t1 USING fts4(x);  -- Ok - has vtab arguments.
+#   CREATE VIRTUAL TABLE main.t1 USING fts4;     -- Had the problem. 
+#
+ifcapable fts3 {
+  forcedelete test.db2
+  set nm [string repeat abcdefghij 100]
+  do_execsql_test 22.1 {
+    ATTACH 'test.db2' AS $nm
+  }
+  
+  execsql "SELECT * FROM sqlite_master"
+  do_execsql_test 22.2 "CREATE VIRTUAL TABLE ${nm}.t1 USING fts4"
+  
+  do_test 22.3.1 {
+    set sql "CREATE VIRTUAL TABLE ${nm}.t2 USING fts4"
+    set stmt [sqlite3_prepare_v2 db $sql -1 dummy]
+    sqlite3_step $stmt
+  } {SQLITE_DONE}
+  
+  do_test 22.3.2 {
+    sqlite3_finalize $stmt
+  } {SQLITE_OK}
+  
+  do_test 22.4.1 {
+    set sql "CREATE VIRTUAL TABLE ${nm}.t3 USING fts4"
+    set n [string length $sql]
+    set stmt [sqlite3_prepare db "${sql}xyz" $n dummy]
+    sqlite3_step $stmt
+  } {SQLITE_DONE}
+  
+  do_test 22.4.2 {
+    sqlite3_finalize $stmt
+  } {SQLITE_OK}
+}
+
+
+#-------------------------------------------------------------------------
+# The following tests verify that a DROP TABLE command on a virtual
+# table does not cause other operations to crash.
+#
+#   23.1: Dropping a vtab while a SELECT is running on it.
+#
+#   23.2: Dropping a vtab while a SELECT that will, but has not yet,
+#         open a cursor on the vtab, is running. In this case the
+#         DROP TABLE succeeds and the SELECT hits an error.
+#   
+#   23.3: Dropping a vtab from within a user-defined-function callback
+#         in the middle of an "INSERT INTO vtab SELECT ..." statement.
+#
+reset_db
+load_static_extension db wholenumber
+load_static_extension db eval
+register_echo_module db
+
+do_test 23.1 {
+  execsql { CREATE VIRTUAL TABLE t1 USING wholenumber }
+  set res ""
+  db eval { SELECT value FROM t1 WHERE value<10 } {
+    if {$value == 5} {
+      set res [catchsql { DROP TABLE t1 }]
+    }
+  }
+  set res
+} {1 {database table is locked}}
+
+do_test 23.2 {
+  execsql { 
+    CREATE TABLE t2(value);
+    INSERT INTO t2 VALUES(1), (2), (3);
+  }
+
+  set res2 [list [catch {
+    db eval {
+      SELECT value FROM t2 UNION ALL 
+      SELECT value FROM t1 WHERE value<10
+    } {
+      if {$value == 2} { set res1 [catchsql { DROP TABLE t1 }] }
+    }
+  } msg] $msg]
+  list $res1 $res2
+} {{0 {}} {1 {database table is locked}}}
+
+do_test 23.3.1 {
+  execsql { CREATE VIRTUAL TABLE t1e USING echo(t2) }
+  execsql { INSERT INTO t1e SELECT 4 }
+  catchsql { INSERT INTO t1e SELECT eval('DROP TABLE t1e') }
+} {1 {database table is locked}}
+do_execsql_test 23.3.2 { SELECT * FROM t1e } {1 2 3 4}
+
+#-------------------------------------------------------------------------
+# At one point SQL like this:
+#
+#   SAVEPOINT xyz;       -- Opens SQL transaction
+#     INSERT INTO vtab   -- Write to virtual table
+#     ROLLBACK TO xyz;
+#   RELEASE xyz;
+#
+# was not invoking the xRollbackTo() callback for the ROLLBACK TO 
+# operation. Which meant that virtual tables like FTS3 would incorrectly 
+# commit the results of the INSERT as part of the "RELEASE xyz" command.
+#
+# The following tests check that this has been fixed.
+#
+ifcapable fts3 {
+  do_execsql_test 24.0 {
+    CREATE VIRTUAL TABLE t4 USING fts3();
+    SAVEPOINT a;
+    INSERT INTO t4 VALUES('a b c');
+    ROLLBACK TO a;
+    RELEASE a;
+    SELECT * FROM t4;
+  } {}
+
+  do_execsql_test 24.1 { SELECT * FROM t4 WHERE t4 MATCH 'b' } {}
+  do_execsql_test 24.2 { INSERT INTO t4(t4) VALUES('integrity-check') } {}
+
+  do_execsql_test 24.3 {
+    SAVEPOINT a;
+    CREATE VIRTUAL TABLE t5 USING fts3();
+    SAVEPOINT b;
+    ROLLBACK TO a;
+    SAVEPOINT c;
+    RELEASE a;
+  }
+}
+
+# 2021-07-04 https://sqlite.org/forum/forumpost/16ca0e9f32
+# Yu Liang crash involving UPDATE on a virtual table with
+# a duplicate column in a vector changeset and invoking the
+# query flattener for UNION ALL.
+#
+reset_db
+register_echo_module db
+do_catchsql_test 25.0 {
+  CREATE TABLE t0(a);
+  CREATE VIRTUAL TABLE t1 USING echo(t0);
+  WITH t3(a) AS (SELECT * FROM t1 UNION ALL SELECT * FROM t1)
+  UPDATE t1 SET (a,a) = (SELECT 1, 0) FROM t3;
+} {0 {}}
+
+#--------------------------------------------------------------------------
+#
+reset_db
+load_static_extension db wholenumber
+do_execsql_test 26.1 {
+  CREATE VIRTUAL TABLE t1 USING wholenumber;
+  CREATE TABLE tx(a, b, c);
+}
+do_test 26.2 {
+  sqlite3 db2 test.db
+  db2 eval { CREATE TABLE ty(x, y) }
+  db2 close
+} {}
+do_execsql_test 26.3 {
+  SELECT value FROM t1 WHERE value<5
+} {1 2 3 4}
+
+
+finish_test
diff --git a/test/vtab2.test b/test/vtab2.test
new file mode 100644
index 0000000000000000000000000000000000000000..7bd27a5fd00f03cc526de2a3c29a79ea63391838
--- /dev/null
+++ b/test/vtab2.test
@@ -0,0 +1,163 @@
+# 2006 June 10
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix vtab2
+
+ifcapable !vtab||!schema_pragmas {
+  finish_test
+  return
+}
+
+register_schema_module [sqlite3_connection_pointer db]
+do_test vtab2-1.1 {
+  execsql {
+    CREATE VIRTUAL TABLE schema USING schema;
+    SELECT * FROM schema;
+  }
+} [list \
+  main schema 0 database   {} 0 {} 0 \
+  main schema 1 tablename  {} 0 {} 0 \
+  main schema 2 cid        {} 0 {} 0 \
+  main schema 3 name       {} 0 {} 0 \
+  main schema 4 type       {} 0 {} 0 \
+  main schema 5 not_null   {} 0 {} 0 \
+  main schema 6 dflt_value {} 0 {} 0 \
+  main schema 7 pk         {} 0 {} 0 \
+]
+
+# See ticket #2230.
+#
+do_test vtab2-1.2 {
+  execsql {
+    SELECT length(tablename) FROM schema GROUP by tablename;
+  }
+} {6}
+do_test vtab2-1.3 {
+  execsql {
+    SELECT tablename FROM schema GROUP by length(tablename);
+  }
+} {schema}
+do_test vtab2-1.4 {
+  execsql {
+    SELECT length(tablename) FROM schema GROUP by length(tablename);
+  }
+} {6}
+
+register_tclvar_module [sqlite3_connection_pointer db]
+do_test vtab2-2.1 {
+  set ::abc 123
+  execsql {
+    CREATE VIRTUAL TABLE vars USING tclvar;
+    SELECT name, arrayname, value FROM vars WHERE name='abc';
+  }
+} [list abc "" 123]
+do_test vtab2-2.2 {
+  set A(1) 1
+  set A(2) 4
+  set A(3) 9
+  execsql {
+    SELECT name, arrayname, value FROM vars WHERE name='A';
+  }
+} [list A 1 1 A 2 4 A 3 9]
+unset -nocomplain result
+unset -nocomplain var
+set result {}
+foreach var [lsort [info vars tcl_*]] {
+  catch {lappend result $var [set $var]}
+}
+do_test vtab2-2.3 {
+  execsql {
+    SELECT name, value FROM vars
+      WHERE name MATCH 'tcl_*' AND arrayname = '' 
+      ORDER BY name;
+  }
+} $result
+unset result
+unset var
+
+# Ticket #2894.
+#
+# Make sure we do call Column(), and Rowid() methods of
+# a virtual table when that table is in a LEFT JOIN.
+#
+do_test vtab2-3.1 {
+  execsql {
+    SELECT * FROM schema WHERE dflt_value IS NULL LIMIT 1
+  }
+} {main schema 0 database {} 0 {} 0}
+do_test vtab2-3.2 {
+  execsql {
+    SELECT *, b.rowid
+      FROM schema a LEFT JOIN schema b ON a.dflt_value=b.dflt_value
+     WHERE a.rowid=1
+  }
+} {main schema 0 database {} 0 {} 0 {} {} {} {} {} {} {} {} {}}
+do_test vtab2-3.3 {
+  execsql {
+    SELECT *, b.rowid
+      FROM schema a LEFT JOIN schema b ON a.dflt_value IS b.dflt_value
+                                      AND a.dflt_value IS NOT NULL
+     WHERE a.rowid=1
+  }
+} {main schema 0 database {} 0 {} 0 {} {} {} {} {} {} {} {} {}}
+
+do_test vtab2-4.1 {
+  execsql {
+    BEGIN TRANSACTION;
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c, UNIQUE(b, c));
+    CREATE TABLE fkey(
+      to_tbl,
+      to_col
+    );
+    INSERT INTO "fkey" VALUES('t1',NULL);
+    COMMIT;
+  }
+} {}
+do_test vtab2-4.2 {
+  execsql { CREATE VIRTUAL TABLE v_col USING schema }
+} {}
+do_test vtab2-4.3 {
+  execsql { SELECT name FROM v_col WHERE tablename = 't1' AND pk }
+} {a}
+do_test vtab2-4.4 {
+  execsql {
+    UPDATE fkey 
+    SET to_col = (SELECT name FROM v_col WHERE tablename = 't1' AND pk);
+  }
+} {}
+do_test vtab2-4.5 {
+  execsql { SELECT * FROM fkey }
+} {t1 a}
+
+#-------------------------------------------------------------------------
+#
+ifcapable fts3 {
+  reset_db
+  do_execsql_test 5.1 {
+    PRAGMA encoding='UTF16';
+  }
+
+  do_test 5.2 {
+    sqlite3_exec_hex db { CREATE VIRTUAL TABLE %C8 USING fts3 }
+  } {0 {}}
+
+  do_test 5.3 {
+    sqlite3_exec_hex db { CREATE VIRTUAL TABLE %C9 USING s }
+  } {/1 {malformed database schema.* already exists}/}
+}
+
+
+
+finish_test
diff --git a/test/vtab3.test b/test/vtab3.test
new file mode 100644
index 0000000000000000000000000000000000000000..e8c6982a57c41c3b4f6fe17c9180931437d1502c
--- /dev/null
+++ b/test/vtab3.test
@@ -0,0 +1,140 @@
+# 2006 June 10
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is the authorisation callback and virtual tables.
+#
+# $Id: vtab3.test,v 1.3 2008/07/12 14:52:21 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !vtab||!auth {
+  finish_test
+  return
+}
+
+set ::auth_fail 0
+set ::auth_log [list]
+set ::auth_filter [list SQLITE_READ SQLITE_UPDATE SQLITE_SELECT SQLITE_PRAGMA]
+
+proc auth {code arg1 arg2 arg3 arg4 args} {
+  if {[lsearch $::auth_filter $code]>-1} {
+    return SQLITE_OK
+  }
+  lappend ::auth_log $code $arg1 $arg2 $arg3 $arg4
+  incr ::auth_fail -1
+  if {$::auth_fail == 0} {
+    return SQLITE_DENY
+  }
+  return SQLITE_OK
+}
+
+do_test vtab3-1.1 {
+  execsql {
+    CREATE TABLE elephant(
+      name VARCHAR(32), 
+      color VARCHAR(16), 
+      age INTEGER, 
+      UNIQUE(name, color)
+    );
+  }
+} {}
+
+
+do_test vtab3-1.2 {
+  register_echo_module [sqlite3_connection_pointer db]
+  db authorizer ::auth
+  execsql {
+    CREATE VIRTUAL TABLE pachyderm USING echo(elephant);
+  }
+  set ::auth_log
+} [list \
+  SQLITE_INSERT        sqlite_master {}   main {} \
+  SQLITE_CREATE_VTABLE pachyderm     echo main {} \
+]
+
+do_test vtab3-1.3 {
+  set ::auth_log [list]
+  execsql {
+    DROP TABLE pachyderm;
+  }
+  set ::auth_log
+} [list \
+  SQLITE_DELETE        sqlite_master {}   main {} \
+  SQLITE_DROP_VTABLE   pachyderm     echo main {} \
+  SQLITE_DELETE        pachyderm     {}   main {} \
+  SQLITE_DELETE        sqlite_master {}   main {} \
+]
+
+do_test vtab3-1.4 {
+  set ::auth_fail 1
+  catchsql {
+    CREATE VIRTUAL TABLE pachyderm USING echo(elephant);
+  }
+} {1 {not authorized}}
+do_test vtab3-1.5 {
+  execsql {
+    SELECT name FROM sqlite_master WHERE type = 'table';
+  }
+} {elephant}
+
+do_test vtab3-1.5 {
+  set ::auth_fail 2
+  catchsql {
+    CREATE VIRTUAL TABLE pachyderm USING echo(elephant);
+  }
+} {1 {not authorized}}
+do_test vtab3-1.6 {
+  execsql {
+    SELECT name FROM sqlite_master WHERE type = 'table';
+  }
+} {elephant}
+
+do_test vtab3-1.5 {
+  set ::auth_fail 3
+  catchsql {
+    CREATE VIRTUAL TABLE pachyderm USING echo(elephant);
+  }
+} {0 {}}
+do_test vtab3-1.6 {
+  execsql {
+    SELECT name FROM sqlite_master WHERE type = 'table';
+  }
+} {elephant pachyderm}
+
+foreach i [list 1 2 3 4] {
+  set ::auth_fail $i
+  do_test vtab3-1.7.$i.1 {
+    set rc [catch {
+      execsql {DROP TABLE pachyderm;}
+    } msg]
+    if {$msg eq "authorization denied"} {set msg "not authorized"}
+    list $rc $msg
+  } {1 {not authorized}}
+  do_test vtab3-1.7.$i.2 {
+    execsql {
+      SELECT name FROM sqlite_master WHERE type = 'table';
+    }
+  } {elephant pachyderm}
+}
+do_test vtab3-1.8.1 {
+  set ::auth_fail 0
+  catchsql {
+    DROP TABLE pachyderm;
+  }
+} {0 {}}
+do_test vtab3-1.8.2 {
+  execsql {
+    SELECT name FROM sqlite_master WHERE type = 'table';
+  }
+} {elephant}
+
+finish_test
diff --git a/test/vtab4.test b/test/vtab4.test
new file mode 100644
index 0000000000000000000000000000000000000000..d12ca33cc0eb1b6e38f23eb732fd2fbd0b1b9628
--- /dev/null
+++ b/test/vtab4.test
@@ -0,0 +1,193 @@
+# 2006 June 10
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. The
+# focus is on testing the following virtual table methods:
+#
+#     xBegin
+#     xSync
+#     xCommit
+#     xRollback
+#
+# $Id: vtab4.test,v 1.3 2008/07/12 14:52:21 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+unset -nocomplain echo_module
+unset -nocomplain echo_module_sync_fail
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+# Register the echo module
+db cache size 0
+register_echo_module [sqlite3_connection_pointer db]
+
+do_test vtab4-1.1 {
+  execsql {
+    CREATE TABLE treal(a PRIMARY KEY, b, c);
+    CREATE VIRTUAL TABLE techo USING echo(treal);
+  }
+} {}
+
+# Test an INSERT, UPDATE and DELETE statement on the virtual table
+# in an implicit transaction. Each should result in a single call
+# to xBegin, xSync and xCommit.
+#
+do_test vtab4-1.2 {
+  set echo_module [list]
+  execsql {
+    INSERT INTO techo VALUES(1, 2, 3);
+  }
+  set echo_module
+} {xBegin echo(treal) xSync echo(treal) xCommit echo(treal)}
+do_test vtab4-1.3 {
+  set echo_module [list]
+  execsql {
+    UPDATE techo SET a = 2;
+  }
+  set echo_module
+} [list xBestIndex {SELECT rowid, a, b, c FROM 'treal'} \
+        xBegin     echo(treal)                    \
+        xFilter    {SELECT rowid, a, b, c FROM 'treal'} \
+        xSync      echo(treal)                    \
+        xCommit    echo(treal)                    \
+]
+do_test vtab4-1.4 {
+  set echo_module [list]
+  execsql {
+    DELETE FROM techo;
+  }
+  set echo_module
+} [list xBestIndex {SELECT rowid, NULL, NULL, NULL FROM 'treal'} \
+        xBegin     echo(treal)                    \
+        xFilter    {SELECT rowid, NULL, NULL, NULL FROM 'treal'} \
+        xSync      echo(treal)                    \
+        xCommit    echo(treal)                    \
+]
+
+# Ensure xBegin is not called more than once in a single transaction.
+#
+do_test vtab4-2.1 {
+  set echo_module [list]
+  execsql {
+    BEGIN;
+    INSERT INTO techo VALUES(1, 2, 3);
+    INSERT INTO techo VALUES(4, 5, 6);
+    INSERT INTO techo VALUES(7, 8, 9);
+    COMMIT;
+  }
+  set echo_module
+} {xBegin echo(treal) xSync echo(treal) xCommit echo(treal)}
+
+# Try a transaction with two virtual tables.
+#
+do_test vtab4-2.2 {
+  execsql {
+    CREATE TABLE sreal(a, b, c UNIQUE);
+    CREATE VIRTUAL TABLE secho USING echo(sreal);
+  }
+  set echo_module [list]
+  execsql {
+    BEGIN;
+    INSERT INTO secho SELECT * FROM techo;
+    DELETE FROM techo;
+    COMMIT;
+  }
+  set echo_module
+} [list xBestIndex {SELECT rowid, a, b, c FROM 'treal'} \
+        xBegin     echo(sreal)                    \
+        xFilter    {SELECT rowid, a, b, c FROM 'treal'} \
+        xBestIndex {SELECT rowid, NULL, NULL, NULL FROM 'treal'} \
+        xBegin     echo(treal)                    \
+        xFilter    {SELECT rowid, NULL, NULL, NULL FROM 'treal'} \
+        xSync   echo(sreal)                       \
+        xSync   echo(treal)                       \
+        xCommit echo(sreal)                       \
+        xCommit echo(treal)                       \
+]
+do_test vtab4-2.3 {
+  execsql {
+    SELECT * FROM secho;
+  }
+} {1 2 3 4 5 6 7 8 9}
+do_test vtab4-2.4 {
+  execsql {
+    SELECT * FROM techo;
+  }
+} {}
+
+# Try an explicit ROLLBACK on a transaction with two open virtual tables.
+do_test vtab4-2.5 {
+  set echo_module [list]
+  execsql {
+    BEGIN;
+    INSERT INTO techo SELECT * FROM secho;
+    DELETE FROM secho;
+    ROLLBACK;
+  }
+  set echo_module
+} [list xBestIndex {SELECT rowid, a, b, c FROM 'sreal'} \
+        xBegin     echo(treal)                    \
+        xFilter    {SELECT rowid, a, b, c FROM 'sreal'} \
+        xBestIndex {SELECT rowid, NULL, NULL, NULL FROM 'sreal'} \
+        xBegin     echo(sreal)                    \
+        xFilter    {SELECT rowid, NULL, NULL, NULL FROM 'sreal'} \
+        xRollback  echo(treal)                    \
+        xRollback  echo(sreal)                    \
+]
+do_test vtab4-2.6 {
+  execsql {
+    SELECT * FROM secho;
+  }
+} {1 2 3 4 5 6 7 8 9}
+do_test vtab4-2.7 {
+  execsql {
+    SELECT * FROM techo;
+  }
+} {}
+
+do_test vtab4-3.1 {
+  set echo_module [list]
+  set echo_module_sync_fail treal
+  catchsql {
+    INSERT INTO techo VALUES(1, 2, 3);
+  }
+} {1 {unknown error}}
+do_test vtab4-3.2 {
+  set echo_module
+} {xBegin echo(treal) xSync echo(treal) xRollback echo(treal)}
+
+do_test vtab4-3.3 {
+  set echo_module [list]
+  set echo_module_sync_fail sreal
+  catchsql {
+    BEGIN;
+    INSERT INTO techo SELECT * FROM secho;
+    DELETE FROM secho;
+    COMMIT;
+  }
+  set echo_module
+} [list xBestIndex {SELECT rowid, a, b, c FROM 'sreal'} \
+        xBegin     echo(treal)                    \
+        xFilter    {SELECT rowid, a, b, c FROM 'sreal'} \
+        xBestIndex {SELECT rowid, NULL, NULL, NULL FROM 'sreal'} \
+        xBegin     echo(sreal)                    \
+        xFilter    {SELECT rowid, NULL, NULL, NULL FROM 'sreal'} \
+        xSync      echo(treal)                    \
+        xSync      echo(sreal)                    \
+        xRollback  echo(treal)                    \
+        xRollback  echo(sreal)                    \
+]
+
+finish_test
diff --git a/test/vtab5.test b/test/vtab5.test
new file mode 100644
index 0000000000000000000000000000000000000000..bb84a5ceec6c6237db80ac6e6b04762dd3089790
--- /dev/null
+++ b/test/vtab5.test
@@ -0,0 +1,154 @@
+# 2006 June 10
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# $Id: vtab5.test,v 1.8 2008/07/12 14:52:21 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+# The following tests - vtab5-1.* - ensure that an INSERT, DELETE or UPDATE
+# statement can be executed immediately after a CREATE or schema reload. The
+# point here is testing that the parser always calls xConnect() before the
+# schema of a virtual table is used.
+#
+register_echo_module [sqlite3_connection_pointer db]
+do_test vtab5-1.1 {
+  execsql {
+    CREATE TABLE treal(a VARCHAR(16), b INTEGER, c FLOAT);
+    INSERT INTO treal VALUES('a', 'b', 'c');
+    CREATE VIRTUAL TABLE techo USING echo(treal);
+  }
+} {}
+do_test vtab5.1.2 {
+  execsql {
+    SELECT * FROM techo;
+  }
+} {a b c}
+do_test vtab5.1.3 {
+  db close
+  sqlite3 db test.db
+  register_echo_module [sqlite3_connection_pointer db]
+  execsql {
+    INSERT INTO techo VALUES('c', 'd', 'e');
+    SELECT * FROM techo;
+  }
+} {a b c c d e}
+do_test vtab5.1.4 {
+  db close
+  sqlite3 db test.db
+  register_echo_module [sqlite3_connection_pointer db]
+  execsql {
+    UPDATE techo SET a = 10;
+    SELECT * FROM techo;
+  }
+} {10 b c 10 d e}
+do_test vtab5.1.5 {
+  db close
+  sqlite3 db test.db
+  register_echo_module [sqlite3_connection_pointer db]
+  execsql {
+    DELETE FROM techo WHERE b > 'c';
+    SELECT * FROM techo;
+  }
+} {10 b c}
+do_test vtab5.1.X {
+  execsql {
+    DROP TABLE techo;
+    DROP TABLE treal;
+  }
+} {}
+
+# The following tests - vtab5-2.* - ensure that collation sequences
+# assigned to virtual table columns via the "CREATE TABLE" statement 
+# passed to sqlite3_declare_vtab() are used correctly.
+#
+do_test vtab5.2.1 {
+  execsql {
+    CREATE TABLE strings(str COLLATE NOCASE);
+    INSERT INTO strings VALUES('abc1');
+    INSERT INTO strings VALUES('Abc3');
+    INSERT INTO strings VALUES('ABc2');
+    INSERT INTO strings VALUES('aBc4');
+    SELECT str FROM strings ORDER BY 1;
+  }
+} {abc1 ABc2 Abc3 aBc4}
+do_test vtab5.2.2 {
+  execsql {
+    CREATE VIRTUAL TABLE echo_strings USING echo(strings);
+    SELECT str FROM echo_strings ORDER BY 1;
+  }
+} {abc1 ABc2 Abc3 aBc4}
+do_test vtab5.2.3 {
+  execsql {
+    SELECT str||'' FROM echo_strings ORDER BY 1;
+  }
+} {ABc2 Abc3 aBc4 abc1}
+
+# Test that it is impossible to create a triggger on a virtual table.
+#
+ifcapable trigger {
+  do_test vtab5.3.1 {
+    catchsql {
+      CREATE TRIGGER trig INSTEAD OF INSERT ON echo_strings BEGIN
+        SELECT 1, 2, 3;
+      END;
+    }
+  } {1 {cannot create triggers on virtual tables}}
+  do_test vtab5.3.2 {
+    catchsql {
+      CREATE TRIGGER trig AFTER INSERT ON echo_strings BEGIN
+        SELECT 1, 2, 3;
+      END;
+    }
+  } {1 {cannot create triggers on virtual tables}}
+  do_test vtab5.3.2 {
+    catchsql {
+      CREATE TRIGGER trig BEFORE INSERT ON echo_strings BEGIN
+        SELECT 1, 2, 3;
+      END;
+    }
+  } {1 {cannot create triggers on virtual tables}}
+}
+
+# Test that it is impossible to create an index on a virtual table.
+#
+do_test vtab5.4.1 {
+  catchsql {
+    CREATE INDEX echo_strings_i ON echo_strings(str);
+  }
+} {1 {virtual tables may not be indexed}}
+
+# Test that it is impossible to add a column to a virtual table.
+#
+ifcapable altertable {
+  do_test vtab5.4.2 {
+    catchsql {
+      ALTER TABLE echo_strings ADD COLUMN col2;
+    }
+  } {1 {virtual tables may not be altered}}
+}
+
+# Test that it is impossible to rename a virtual table.
+# UPDATE: It is now possible.
+#
+# do_test vtab5.4.3 {
+#   catchsql {
+#     ALTER TABLE echo_strings RENAME TO echo_strings2;
+#   }
+# } {1 {virtual tables may not be altered}}
+
+finish_test
diff --git a/test/vtab6.test b/test/vtab6.test
new file mode 100644
index 0000000000000000000000000000000000000000..1c220e11fe87ed079be1de9806bf162eaa587504
--- /dev/null
+++ b/test/vtab6.test
@@ -0,0 +1,583 @@
+# 2002 May 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests for joins, including outer joins involving
+# virtual tables. The test cases in this file are copied from the file
+# join.test, and some of the comments still reflect that.
+#
+# $Id: vtab6.test,v 1.5 2009/07/01 16:12:08 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+register_echo_module [sqlite3_connection_pointer db]
+
+execsql {
+  CREATE TABLE real_t1(a,b,c);
+  CREATE TABLE real_t2(b,c,d);
+  CREATE TABLE real_t3(c,d,e);
+  CREATE TABLE real_t4(d,e,f);
+  CREATE TABLE real_t5(a INTEGER PRIMARY KEY);
+  CREATE TABLE real_t6(a INTEGER);
+  CREATE TABLE real_t7 (x, y);
+  CREATE TABLE real_t8 (a integer primary key, b);
+  CREATE TABLE real_t9(a INTEGER PRIMARY KEY, b);
+  CREATE TABLE real_t10(x INTEGER PRIMARY KEY, y);
+  CREATE TABLE real_t11(p INTEGER PRIMARY KEY, q);
+  CREATE TABLE real_t12(a,b);
+  CREATE TABLE real_t13(b,c);
+  CREATE TABLE real_t21(a,b,c);
+  CREATE TABLE real_t22(p,q);
+}
+foreach t [list t1 t2 t3 t4 t5 t6 t7 t8 t9 t10 t11 t12 t13 t21 t22] {
+  execsql "CREATE VIRTUAL TABLE $t USING echo(real_$t)"
+}
+
+do_test vtab6-1.1 {
+  execsql {
+    INSERT INTO t1 VALUES(1,2,3);
+    INSERT INTO t1 VALUES(2,3,4);
+    INSERT INTO t1 VALUES(3,4,5);
+    SELECT * FROM t1;
+  }  
+} {1 2 3 2 3 4 3 4 5}
+do_test vtab6-1.2 {
+  execsql {
+    INSERT INTO t2 VALUES(1,2,3);
+    INSERT INTO t2 VALUES(2,3,4);
+    INSERT INTO t2 VALUES(3,4,5);
+    SELECT * FROM t2;
+  }  
+} {1 2 3 2 3 4 3 4 5}
+
+do_test vtab6-1.3 {
+  execsql2 {
+    SELECT * FROM t1 NATURAL JOIN t2;
+  }
+} {a 1 b 2 c 3 d 4 a 2 b 3 c 4 d 5}
+do_test vtab6-1.3.1 {
+  execsql2 {
+    SELECT * FROM t2 NATURAL JOIN t1;
+  }
+} {b 2 c 3 d 4 a 1 b 3 c 4 d 5 a 2}
+do_test vtab6-1.3.2 {
+  execsql2 {
+    SELECT * FROM t2 AS x NATURAL JOIN t1;
+  }
+} {b 2 c 3 d 4 a 1 b 3 c 4 d 5 a 2}
+do_test vtab6-1.3.3 {
+  execsql2 {
+    SELECT * FROM t2 NATURAL JOIN t1 AS y;
+  }
+} {b 2 c 3 d 4 a 1 b 3 c 4 d 5 a 2}
+do_test vtab6-1.3.4 {
+  execsql {
+    SELECT b FROM t1 NATURAL JOIN t2;
+  }
+} {2 3}
+do_test vtab6-1.4.1 {
+  execsql2 {
+    SELECT * FROM t1 INNER JOIN t2 USING(b,c);
+  }
+} {a 1 b 2 c 3 d 4 a 2 b 3 c 4 d 5}
+do_test vtab6-1.4.2 {
+  execsql2 {
+    SELECT * FROM t1 AS x INNER JOIN t2 USING(b,c);
+  }
+} {a 1 b 2 c 3 d 4 a 2 b 3 c 4 d 5}
+do_test vtab6-1.4.3 {
+  execsql2 {
+    SELECT * FROM t1 INNER JOIN t2 AS y USING(b,c);
+  }
+} {a 1 b 2 c 3 d 4 a 2 b 3 c 4 d 5}
+do_test vtab6-1.4.4 {
+  execsql2 {
+    SELECT * FROM t1 AS x INNER JOIN t2 AS y USING(b,c);
+  }
+} {a 1 b 2 c 3 d 4 a 2 b 3 c 4 d 5}
+do_test vtab6-1.4.5 {
+  execsql {
+    SELECT b FROM t1 JOIN t2 USING(b);
+  }
+} {2 3}
+do_test vtab6-1.5 {
+  execsql2 {
+    SELECT * FROM t1 INNER JOIN t2 USING(b);
+  }
+} {a 1 b 2 c 3 c 3 d 4 a 2 b 3 c 4 c 4 d 5}
+do_test vtab6-1.6 {
+  execsql2 {
+    SELECT * FROM t1 INNER JOIN t2 USING(c);
+  }
+} {a 1 b 2 c 3 b 2 d 4 a 2 b 3 c 4 b 3 d 5}
+do_test vtab6-1.7 {
+  execsql2 {
+    SELECT * FROM t1 INNER JOIN t2 USING(c,b);
+  }
+} {a 1 b 2 c 3 d 4 a 2 b 3 c 4 d 5}
+
+do_test vtab6-1.8 {
+  execsql {
+    SELECT * FROM t1 NATURAL CROSS JOIN t2;
+  }
+} {1 2 3 4 2 3 4 5}
+do_test vtab6-1.9 {
+  execsql {
+    SELECT * FROM t1 CROSS JOIN t2 USING(b,c);
+  }
+} {1 2 3 4 2 3 4 5}
+do_test vtab6-1.10 {
+  execsql {
+    SELECT * FROM t1 NATURAL INNER JOIN t2;
+  }
+} {1 2 3 4 2 3 4 5}
+do_test vtab6-1.11 {
+  execsql {
+    SELECT * FROM t1 INNER JOIN t2 USING(b,c);
+  }
+} {1 2 3 4 2 3 4 5}
+do_test vtab6-1.12 {
+  execsql {
+    SELECT * FROM t1 natural inner join t2;
+  }
+} {1 2 3 4 2 3 4 5}
+
+ifcapable subquery {
+  do_test vtab6-1.13 {
+    execsql2 {
+      SELECT * FROM t1 NATURAL JOIN 
+        (SELECT b as 'c', c as 'd', d as 'e' FROM t2) as t3
+    }
+  } {a 1 b 2 c 3 d 4 e 5}
+  do_test vtab6-1.14 {
+    execsql2 {
+      SELECT * FROM (SELECT b as 'c', c as 'd', d as 'e' FROM t2) as 'tx'
+          NATURAL JOIN t1
+    }
+  } {c 3 d 4 e 5 a 1 b 2}
+}
+
+do_test vtab6-1.15 {
+  execsql {
+    INSERT INTO t3 VALUES(2,3,4);
+    INSERT INTO t3 VALUES(3,4,5);
+    INSERT INTO t3 VALUES(4,5,6);
+    SELECT * FROM t3;
+  }  
+} {2 3 4 3 4 5 4 5 6}
+do_test vtab6-1.16 {
+  execsql {
+    SELECT * FROM t1 natural join t2 natural join t3;
+  }
+} {1 2 3 4 5 2 3 4 5 6}
+do_test vtab6-1.17 {
+  execsql2 {
+    SELECT * FROM t1 natural join t2 natural join t3;
+  }
+} {a 1 b 2 c 3 d 4 e 5 a 2 b 3 c 4 d 5 e 6}
+do_test vtab6-1.18 {
+  execsql {
+    INSERT INTO t4 VALUES(2,3,4);
+    INSERT INTO t4 VALUES(3,4,5);
+    INSERT INTO t4 VALUES(4,5,6);
+    SELECT * FROM t4;
+  }  
+} {2 3 4 3 4 5 4 5 6}
+do_test vtab6-1.19.1 {
+  execsql {
+    SELECT * FROM t1 natural join t2 natural join t4;
+  }
+} {1 2 3 4 5 6}
+do_test vtab6-1.19.2 {
+  execsql2 {
+    SELECT * FROM t1 natural join t2 natural join t4;
+  }
+} {a 1 b 2 c 3 d 4 e 5 f 6}
+do_test vtab6-1.20 {
+  execsql {
+    SELECT * FROM t1 natural join t2 natural join t3 WHERE t1.a=1
+  }
+} {1 2 3 4 5}
+
+do_test vtab6-2.1 {
+  execsql {
+    SELECT * FROM t1 NATURAL LEFT JOIN t2;
+  }
+} {1 2 3 4 2 3 4 5 3 4 5 {}}
+do_test vtab6-2.2 {
+  execsql {
+    SELECT * FROM t2 NATURAL LEFT OUTER JOIN t1;
+  }
+} {1 2 3 {} 2 3 4 1 3 4 5 2}
+#do_test vtab6-2.3 {
+#  catchsql {
+#    SELECT * FROM t1 NATURAL RIGHT OUTER JOIN t2;
+#  }
+#} {1 {RIGHT and FULL OUTER JOINs are not currently supported}}
+do_test vtab6-2.4 {
+  execsql {
+    SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.d
+  }
+} {1 2 3 {} {} {} 2 3 4 {} {} {} 3 4 5 1 2 3}
+do_test vtab6-2.4.1 {
+  execsql {
+    SELECT * FROM t1 LEFT JOIN t2 ON t1.a IS t2.d
+  }
+} {1 2 3 {} {} {} 2 3 4 {} {} {} 3 4 5 1 2 3}
+do_test vtab6-2.5 {
+  execsql {
+    SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.d WHERE t1.a>1
+  }
+} {2 3 4 {} {} {} 3 4 5 1 2 3}
+do_test vtab6-2.6 {
+  execsql {
+    SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.d WHERE t2.b IS NULL OR t2.b>1
+  }
+} {1 2 3 {} {} {} 2 3 4 {} {} {}}
+
+do_test vtab6-3.1 {
+  catchsql {
+    SELECT * FROM t1 NATURAL JOIN t2 ON t1.a=t2.b;
+  }
+} {1 {a NATURAL join may not have an ON or USING clause}}
+do_test vtab6-3.2 {
+  catchsql {
+    SELECT * FROM t1 NATURAL JOIN t2 USING(b);
+  }
+} {1 {a NATURAL join may not have an ON or USING clause}}
+do_test vtab6-3.3 {
+  catchsql {
+    SELECT * FROM t1 JOIN t2 ON t1.a=t2.b USING(b);
+  }
+} {1 {near "USING": syntax error}}
+do_test vtab6-3.4 {
+  catchsql {
+    SELECT * FROM t1 JOIN t2 USING(a);
+  }
+} {1 {cannot join using column a - column not present in both tables}}
+do_test vtab6-3.5 {
+  catchsql { SELECT * FROM t1 USING(a) }
+} {1 {a JOIN clause is required before USING}}
+do_test vtab6-3.6 {
+  catchsql {
+    SELECT * FROM t1 JOIN t2 ON t3.a=t2.b;
+  }
+} {1 {no such column: t3.a}}
+
+# EVIDENCE-OF: R-47973-48020 you cannot say "INNER OUTER JOIN", because
+# that would be contradictory.
+do_test vtab6-3.7 {
+  catchsql {
+    SELECT * FROM t1 INNER OUTER JOIN t2;
+  }
+} {1 {unknown join type: INNER OUTER}}
+
+do_test vtab6-3.7 {
+  catchsql {
+    SELECT * FROM t1 LEFT BOGUS JOIN t2;
+  }
+} {1 {unknown join type: LEFT BOGUS}}
+
+do_test vtab6-4.1 {
+  execsql {
+    BEGIN;
+    INSERT INTO t6 VALUES(NULL);
+    INSERT INTO t6 VALUES(NULL);
+    INSERT INTO t6 SELECT * FROM t6;
+    INSERT INTO t6 SELECT * FROM t6;
+    INSERT INTO t6 SELECT * FROM t6;
+    INSERT INTO t6 SELECT * FROM t6;
+    INSERT INTO t6 SELECT * FROM t6;
+    INSERT INTO t6 SELECT * FROM t6;
+    COMMIT;
+  }
+  execsql {
+    SELECT * FROM t6 NATURAL JOIN t5;
+  }
+} {}
+do_test vtab6-4.2 {
+  execsql {
+    SELECT * FROM t6, t5 WHERE t6.a<t5.a;
+  }
+} {}
+do_test vtab6-4.3 {
+  execsql {
+    SELECT * FROM t6, t5 WHERE t6.a>t5.a;
+  }
+} {}
+do_test vtab6-4.4 {
+  execsql {
+    UPDATE t6 SET a='xyz';
+    SELECT * FROM t6 NATURAL JOIN t5;
+  }
+} {}
+do_test vtab6-4.6 {
+  execsql {
+    SELECT * FROM t6, t5 WHERE t6.a<t5.a;
+  }
+} {}
+do_test vtab6-4.7 {
+  execsql {
+    SELECT * FROM t6, t5 WHERE t6.a>t5.a;
+  }
+} {}
+do_test vtab6-4.8 {
+  execsql {
+    UPDATE t6 SET a=1;
+    SELECT * FROM t6 NATURAL JOIN t5;
+  }
+} {}
+do_test vtab6-4.9 {
+  execsql {
+    SELECT * FROM t6, t5 WHERE t6.a<t5.a;
+  }
+} {}
+do_test vtab6-4.10 {
+  execsql {
+    SELECT * FROM t6, t5 WHERE t6.a>t5.a;
+  }
+} {}
+
+# A test for ticket #247.
+#
+do_test vtab6-7.1 {
+  sqlite3_db_config db SQLITE_DBCONFIG_DQS_DML 1
+  execsql {
+    INSERT INTO t7 VALUES ("pa1", 1);
+    INSERT INTO t7 VALUES ("pa2", NULL);
+    INSERT INTO t7 VALUES ("pa3", NULL);
+    INSERT INTO t7 VALUES ("pa4", 2);
+    INSERT INTO t7 VALUES ("pa30", 131);
+    INSERT INTO t7 VALUES ("pa31", 130);
+    INSERT INTO t7 VALUES ("pa28", NULL);
+
+    INSERT INTO t8 VALUES (1, "pa1");
+    INSERT INTO t8 VALUES (2, "pa4");
+    INSERT INTO t8 VALUES (3, NULL);
+    INSERT INTO t8 VALUES (4, NULL);
+    INSERT INTO t8 VALUES (130, "pa31");
+    INSERT INTO t8 VALUES (131, "pa30");
+
+    SELECT coalesce(t8.a,999) from t7 LEFT JOIN t8 on y=a;
+  }
+} {1 999 999 2 131 130 999}
+
+# Make sure a left join where the right table is really a view that
+# is itself a join works right.  Ticket #306.
+#
+ifcapable view {
+do_test vtab6-8.1 {
+  execsql {
+    BEGIN;
+    INSERT INTO t9 VALUES(1,11);
+    INSERT INTO t9 VALUES(2,22);
+    INSERT INTO t10 VALUES(1,2);
+    INSERT INTO t10 VALUES(3,3);    
+    INSERT INTO t11 VALUES(2,111);
+    INSERT INTO t11 VALUES(3,333);    
+    CREATE VIEW v10_11 AS SELECT x, q FROM t10, t11 WHERE t10.y=t11.p;
+    COMMIT;
+    SELECT * FROM t9 LEFT JOIN v10_11 ON( a=x );
+  }
+} {1 11 1 111 2 22 {} {}}
+ifcapable subquery {
+  do_test vtab6-8.2 {
+    execsql {
+      SELECT * FROM t9 LEFT JOIN (SELECT x, q FROM t10, t11 WHERE t10.y=t11.p)
+           ON( a=x);
+    }
+  } {1 11 1 111 2 22 {} {}}
+}
+do_test vtab6-8.3 {
+  execsql {
+    SELECT * FROM v10_11 LEFT JOIN t9 ON( a=x );
+  }
+} {1 111 1 11 3 333 {} {}}
+} ;# ifcapable view
+
+# Ticket #350 describes a scenario where LEFT OUTER JOIN does not
+# function correctly if the right table in the join is really
+# subquery.
+#
+# To test the problem, we generate the same LEFT OUTER JOIN in two
+# separate selects but with on using a subquery and the other calling
+# the table directly.  Then connect the two SELECTs using an EXCEPT.
+# Both queries should generate the same results so the answer should
+# be an empty set.
+#
+ifcapable compound {
+do_test vtab6-9.1 {
+  execsql {
+    BEGIN;
+    INSERT INTO t12 VALUES(1,11);
+    INSERT INTO t12 VALUES(2,22);
+    INSERT INTO t13 VALUES(22,222);
+    COMMIT;
+  }
+} {}
+
+ifcapable subquery {
+  do_test vtab6-9.1.1 {
+    execsql {
+      SELECT * FROM t12 NATURAL LEFT JOIN t13
+      EXCEPT
+      SELECT * FROM t12 NATURAL LEFT JOIN (SELECT * FROM t13 WHERE b>0);
+    }
+  } {}
+}
+ifcapable view {
+  do_test vtab6-9.2 {
+    execsql {
+      CREATE VIEW v13 AS SELECT * FROM t13 WHERE b>0;
+      SELECT * FROM t12 NATURAL LEFT JOIN t13
+        EXCEPT
+        SELECT * FROM t12 NATURAL LEFT JOIN v13;
+    }
+  } {}
+} ;# ifcapable view
+} ;# ifcapable compound
+
+ifcapable subquery {
+do_test vtab6-10.1 {
+  execsql {
+    CREATE INDEX i22 ON real_t22(q);
+    SELECT a FROM t21 LEFT JOIN t22 ON b=p WHERE q=
+       (SELECT max(m.q) FROM t22 m JOIN t21 n ON n.b=m.p WHERE n.c=1);
+  }  
+} {}
+} ;# ifcapable subquery
+
+do_test vtab6-11.1.0 {
+  execsql {
+    CREATE TABLE ab_r(a, b);
+    CREATE TABLE bc_r(b, c);
+
+    CREATE VIRTUAL TABLE ab USING echo(ab_r); 
+    CREATE VIRTUAL TABLE bc USING echo(bc_r); 
+
+    INSERT INTO ab VALUES(1, 2);
+    INSERT INTO bc VALUES(2, 3);
+  }
+} {}
+
+do_test vtab6-11.1.1 {
+  execsql {
+    SELECT a, b, c FROM ab NATURAL JOIN bc;
+  }
+} {1 2 3}
+do_test vtab6-11.1.2 {
+  execsql {
+    SELECT a, b, c FROM bc NATURAL JOIN ab;
+  }
+} {1 2 3}
+
+set ::echo_module_cost 1.0
+
+do_test vtab6-11.1.3 {
+  execsql {
+    SELECT a, b, c FROM ab NATURAL JOIN bc;
+  }
+} {1 2 3}
+do_test vtab6-11.1.4 {
+  execsql {
+    SELECT a, b, c FROM bc NATURAL JOIN ab;
+  }
+} {1 2 3}
+
+
+do_test vtab6-11.2.0 {
+  execsql {
+    CREATE INDEX ab_i ON ab_r(b);
+    CREATE INDEX bc_i ON bc_r(b);
+  }
+} {}
+
+unset ::echo_module_cost
+
+do_test vtab6-11.2.1 {
+  execsql {
+    SELECT a, b, c FROM ab NATURAL JOIN bc;
+  }
+} {1 2 3}
+do_test vtab6-11.2.2 {
+  execsql {
+    SELECT a, b, c FROM bc NATURAL JOIN ab;
+  }
+} {1 2 3}
+
+set ::echo_module_cost 1.0
+
+do_test vtab6-11.2.3 {
+  execsql {
+    SELECT a, b, c FROM ab NATURAL JOIN bc;
+  }
+} {1 2 3}
+do_test vtab6-11.2.4 {
+  execsql {
+    SELECT a, b, c FROM bc NATURAL JOIN ab;
+  }
+} {1 2 3}
+
+unset ::echo_module_cost
+db close
+sqlite3 db test.db
+register_echo_module [sqlite3_connection_pointer db]
+
+do_test vtab6-11.3.1 {
+  execsql {
+    SELECT a, b, c FROM ab NATURAL JOIN bc;
+  }
+} {1 2 3}
+
+do_test vtab6-11.3.2 {
+  execsql {
+    SELECT a, b, c FROM bc NATURAL JOIN ab;
+  }
+} {1 2 3}
+
+set ::echo_module_cost 1.0
+
+do_test vtab6-11.3.3 {
+  execsql {
+    SELECT a, b, c FROM ab NATURAL JOIN bc;
+  }
+} {1 2 3}
+do_test vtab6-11.3.4 {
+  execsql {
+    SELECT a, b, c FROM bc NATURAL JOIN ab;
+  }
+} {1 2 3}
+
+unset ::echo_module_cost
+
+set ::echo_module_ignore_usable 1
+db cache flush
+
+do_test vtab6-11.4.1 {
+  catchsql {
+    SELECT a, b, c FROM ab NATURAL JOIN bc;
+  }
+} {1 {ab.xBestIndex malfunction}}
+do_test vtab6-11.4.2 {
+  catchsql {
+    SELECT a, b, c FROM bc NATURAL JOIN ab;
+  }
+} {1 {bc.xBestIndex malfunction}}
+
+unset ::echo_module_ignore_usable
+
+finish_test
diff --git a/test/vtab7.test b/test/vtab7.test
new file mode 100644
index 0000000000000000000000000000000000000000..8320993de7bc275ce8d15fe039ed344624151e25
--- /dev/null
+++ b/test/vtab7.test
@@ -0,0 +1,207 @@
+# 2006 July 25
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. The focus
+# of this test is reading and writing to the database from within a
+# virtual table xSync() callback.
+#
+# $Id: vtab7.test,v 1.4 2007/12/04 16:54:53 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+# Register the echo module. Code inside the echo module appends elements
+# to the global tcl list variable ::echo_module whenever SQLite invokes
+# certain module callbacks. This includes the xSync(), xCommit() and 
+# xRollback() callbacks. For each of these callback, two elements are
+# appended to ::echo_module, as follows:
+#
+#     Module method        Elements appended to ::echo_module
+#     -------------------------------------------------------
+#     xSync()              xSync echo($tablename)
+#     xCommit()            xCommit echo($tablename)
+#     xRollback()          xRollback echo($tablename)
+#     -------------------------------------------------------
+#
+# In each case, $tablename is replaced by the name of the real table (not
+# the echo table). By setting up a tcl trace on the ::echo_module variable,
+# code in this file arranges for a Tcl script to be executed from within
+# the echo module xSync() callback.
+#
+register_echo_module [sqlite3_connection_pointer db]
+trace add variable ::echo_module write echo_module_trace
+
+# This Tcl proc is invoked whenever the ::echo_module variable is written.
+#
+proc echo_module_trace {args} {
+  # Filter out writes to ::echo_module that are not xSync, xCommit or 
+  # xRollback callbacks.
+  if {[llength $::echo_module] < 2} return
+  set x [lindex $::echo_module end-1]
+  if {$x ne "xSync" && $x ne "xCommit" && $x ne "xRollback"} return
+
+  regexp {^echo.(.*).$} [lindex $::echo_module end] dummy tablename
+  # puts "Ladies and gentlemen, an $x on $tablename!"
+
+  if {[info exists ::callbacks($x,$tablename)]} {
+    eval $::callbacks($x,$tablename)
+  }
+}
+
+# The following tests, vtab7-1.*, test that the trace callback on 
+# ::echo_module is providing the expected tcl callbacks.
+do_test vtab7-1.1 {
+  execsql {
+    CREATE TABLE abc(a, b, c);
+    CREATE VIRTUAL TABLE abc2 USING echo(abc);
+  }
+} {}
+
+do_test vtab7-1.2 {
+  set ::callbacks(xSync,abc) {incr ::counter}
+  set ::counter 0
+  execsql {
+    INSERT INTO abc2 VALUES(1, 2, 3);
+  }
+  set ::counter
+} {1}
+
+# Write to an existing database table from within an xSync callback.
+do_test vtab7-2.1 {
+  set ::callbacks(xSync,abc) {
+    execsql {INSERT INTO log VALUES('xSync');}
+  }
+  execsql {
+    CREATE TABLE log(msg);
+    INSERT INTO abc2 VALUES(4, 5, 6);
+    SELECT * FROM log;
+  }
+} {xSync}
+do_test vtab7-2.3 {
+  execsql {
+    INSERT INTO abc2 VALUES(4, 5, 6);
+    SELECT * FROM log;
+  }
+} {xSync xSync}
+do_test vtab7-2.4 {
+  execsql {
+    INSERT INTO abc2 VALUES(4, 5, 6);
+    SELECT * FROM log;
+  }
+} {xSync xSync xSync}
+
+# Create a database table from within xSync callback.
+do_test vtab7-2.5 {
+  set ::callbacks(xSync,abc) {
+    execsql { CREATE TABLE newtab(d, e, f); }
+  }
+  execsql {
+    INSERT INTO abc2 VALUES(1, 2, 3);
+    SELECT name FROM sqlite_master ORDER BY name;
+  }
+} {abc abc2 log newtab}
+
+# Drop a database table from within xSync callback.
+# This is not allowed.  Tables cannot be dropped while
+# any other statement is active.
+#
+do_test vtab7-2.6 {
+  set ::callbacks(xSync,abc) {
+    set ::rc [catchsql { DROP TABLE newtab }]
+  }
+  execsql {
+    INSERT INTO abc2 VALUES(1, 2, 3);
+    SELECT name FROM sqlite_master ORDER BY name;
+  }
+} {abc abc2 log newtab}
+do_test vtab7-2.6.1 {
+  set ::rc
+} {1 {database table is locked}}
+execsql {DROP TABLE newtab}
+
+# Write to an attached database from xSync().
+ifcapable attach {
+  do_test vtab7-3.1 {
+    forcedelete test2.db
+    forcedelete test2.db-journal
+    execsql {
+      ATTACH 'test2.db' AS db2;
+      CREATE TABLE db2.stuff(description, shape, color);
+    }
+    set ::callbacks(xSync,abc) {
+      execsql { INSERT INTO db2.stuff VALUES('abc', 'square', 'green'); }
+    }
+    execsql {
+      INSERT INTO abc2 VALUES(1, 2, 3);
+      SELECT * from stuff;
+    }
+  } {abc square green}
+}
+
+# UPDATE: The next test passes, but leaks memory. So leave it out.
+#
+# The following tests test that writing to the database from within
+# the xCommit callback causes a misuse error.
+# do_test vtab7-4.1 {
+#   unset -nocomplain ::callbacks(xSync,abc)
+#   set ::callbacks(xCommit,abc) {
+#     execsql { INSERT INTO log VALUES('hello') }
+#   }
+#   catchsql {
+#     INSERT INTO abc2 VALUES(1, 2, 3);
+#   }
+# } {1 {bad parameter or other API misuse}}
+
+# These tests, vtab7-4.*, test that an SQLITE_LOCKED error is returned
+# if an attempt to write to a virtual module table or create a new 
+# virtual table from within an xSync() callback.
+do_test vtab7-4.1 {
+  execsql {
+    CREATE TABLE def(d, e, f);
+    CREATE VIRTUAL TABLE def2 USING echo(def);
+  }
+  set ::callbacks(xSync,abc) {
+    set ::error [catchsql { INSERT INTO def2 VALUES(1, 2, 3) }]
+  }
+  execsql {
+    INSERT INTO abc2 VALUES(1, 2, 3);
+  }
+  set ::error
+} {1 {database table is locked}}
+do_test vtab7-4.2 {
+  set ::callbacks(xSync,abc) {
+    set ::error [catchsql { CREATE VIRTUAL TABLE def3 USING echo(def) }]
+  }
+  execsql {
+    INSERT INTO abc2 VALUES(1, 2, 3);
+  }
+  set ::error
+} {1 {database table is locked}}
+
+do_test vtab7-4.3 {
+  set ::callbacks(xSync,abc) {
+    set ::error [catchsql { DROP TABLE def2 }]
+  }
+  execsql {
+    INSERT INTO abc2 VALUES(1, 2, 3);
+    SELECT name FROM sqlite_master ORDER BY name;
+  }
+  set ::error
+} {1 {database table is locked}}
+
+trace remove variable ::echo_module write echo_module_trace
+unset -nocomplain ::callbacks
+
+finish_test
diff --git a/test/vtab8.test b/test/vtab8.test
new file mode 100644
index 0000000000000000000000000000000000000000..8e04a4155f18d7b5f11c7de61b857a50bf1cdfe6
--- /dev/null
+++ b/test/vtab8.test
@@ -0,0 +1,78 @@
+# 2006 August 29
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file inserting into virtual tables from a SELECT
+# statement.
+#
+# $Id: vtab8.test,v 1.2 2007/03/02 08:12:23 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+register_echo_module [sqlite3_connection_pointer db]
+
+# See ticket #2244
+#
+do_test vtab1.2244-1 {
+  execsql {
+    CREATE TABLE t2244(a, b);
+    CREATE VIRTUAL TABLE t2244e USING echo(t2244);
+    INSERT INTO t2244 VALUES('AA', 'BB');
+    INSERT INTO t2244 VALUES('CC', 'DD');
+    SELECT rowid, * FROM t2244e;
+  }
+} {1 AA BB 2 CC DD}
+do_test vtab1.2244-2 {
+  execsql {
+    SELECT * FROM t2244e WHERE rowid = 10;
+  }
+} {}
+do_test vtab1.2244-3 {
+  execsql {
+    UPDATE t2244e SET a = 'hello world' WHERE 0;
+    SELECT rowid, * FROM t2244e;
+  }
+} {1 AA BB 2 CC DD}
+
+do_test vtab1-2250-2 {
+  execsql {
+    CREATE TABLE t2250(a, b);
+    INSERT INTO t2250 VALUES(10, 20);
+    CREATE VIRTUAL TABLE t2250e USING echo(t2250);
+    select max(rowid) from t2250;
+    select max(rowid) from t2250e;
+  }
+} {1 1}
+
+# See ticket #2260.
+#
+do_test vtab1.2260-1 {
+  execsql {
+    CREATE TABLE t2260a_real(a, b);
+    CREATE TABLE t2260b_real(a, b);
+
+    CREATE INDEX i2260 ON t2260a_real(a);
+    CREATE INDEX i2260x ON t2260b_real(a);
+
+    CREATE VIRTUAL TABLE t2260a USING echo(t2260a_real);
+    CREATE VIRTUAL TABLE t2260b USING echo(t2260b_real);
+
+    SELECT * FROM t2260a, t2260b WHERE t2260a.a = t2260b.a AND t2260a.a > 101;
+  }
+} {}
+
+unset -nocomplain echo_module_begin_fail
+finish_test
diff --git a/test/vtab9.test b/test/vtab9.test
new file mode 100644
index 0000000000000000000000000000000000000000..b1290ebd507646d22e7163d4a747c64b50af9962
--- /dev/null
+++ b/test/vtab9.test
@@ -0,0 +1,70 @@
+# 2006 August 29
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file inserting into virtual tables from a SELECT
+# statement.
+#
+# $Id: vtab9.test,v 1.2 2007/04/16 15:06:26 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+do_test vtab9-1.1 {
+  register_echo_module [sqlite3_connection_pointer db]
+  execsql {
+    CREATE TABLE t0(a);
+    CREATE VIRTUAL TABLE t1 USING echo(t0);
+    INSERT INTO t1 SELECT 'hello';
+    SELECT rowid, * FROM t1;
+  }
+} {1 hello}
+
+do_test vtab9-1.2 {
+  execsql {
+    CREATE TABLE t2(a,b,c);
+    CREATE VIRTUAL TABLE t3 USING echo(t2);
+    CREATE TABLE d1(a,b,c);
+    INSERT INTO d1 VALUES(1,2,3);
+    INSERT INTO d1 VALUES('a','b','c');
+    INSERT INTO d1 VALUES(NULL,'x',123.456);
+    INSERT INTO d1 VALUES(x'6869',123456789,-12345);
+    INSERT INTO t3(a,b,c) SELECT * FROM d1;
+    SELECT rowid, * FROM t3;
+  }
+} {1 1 2 3 2 a b c 3 {} x 123.456 4 hi 123456789 -12345}
+
+# do_test vtab9-2.1 {
+#   execsql {
+#     CREATE TABLE t4(a);
+#     CREATE VIRTUAL TABLE t5 USING echo(t4);
+#     INSERT INTO t4 VALUES('hello');
+#     SELECT rowid, a FROM t5;
+#   }
+# } {1 hello}
+# do_test vtab9-2.2 {
+#   execsql {
+#     INSERT INTO t5(rowid, a) VALUES(1, 'goodbye');
+#   }
+# } {1 hello}
+# do_test vtab9-2.3 {
+#   execsql {
+#     REPLACE INTO t5(rowid, a) VALUES(1, 'goodbye');
+#     SELECT * FROM t5;
+#   }
+# } {1 goodbye}
+
+unset -nocomplain echo_module_begin_fail
+finish_test
diff --git a/test/vtabA.test b/test/vtabA.test
new file mode 100644
index 0000000000000000000000000000000000000000..4c9beae026a9ea1c5e6b4e56d4b26e03612613e2
--- /dev/null
+++ b/test/vtabA.test
@@ -0,0 +1,164 @@
+# 2007 June 26
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is 'hidden' virtual table columns.
+#
+# $Id: vtabA.test,v 1.2 2008/07/12 14:52:21 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+proc get_decltype {table col} {
+  set STMT [sqlite3_prepare $::DB "SELECT $col FROM $table" -1 TAIL]
+  set decltype [sqlite3_column_decltype $STMT 0]
+  sqlite3_finalize $STMT
+  set decltype
+}
+
+proc get_collist {table} {
+  set ret [list]
+  db eval "PRAGMA table_info($table)" { lappend ret $name }
+  set ret
+}
+
+# Register the echo module
+register_echo_module [sqlite3_connection_pointer db]
+
+# Create a virtual table with a 'hidden' column (column b).
+#
+do_test vtabA-1.1 {
+  execsql { CREATE TABLE t1(a, b HIDDEN VARCHAR, c INTEGER) }
+} {}
+do_test vtabA-1.2 {
+  execsql { CREATE VIRTUAL TABLE t1e USING echo(t1) }
+} {}
+
+# Test that the hidden column is not listed by [PRAGMA table_info].
+#
+do_test vtabA-1.3 {
+  execsql { PRAGMA table_info(t1e) }
+} [list              \
+  0 a {}      0 {} 0 \
+  1 c INTEGER 0 {} 0 \
+]
+
+# Test that the hidden column is not require in the default column
+# list for an INSERT statement.
+#
+do_test vtabA-1.4 {
+  catchsql {
+    INSERT INTO t1e VALUES('value a', 'value c');
+  }
+} {0 {}}
+do_test vtabA-1.5 {
+  execsql {
+    SELECT a, b, c FROM t1e;
+  }
+} {{value a} {} {value c}}
+
+do_test vtabA-1.6 {
+  execsql {
+    SELECT * FROM t1e;
+  }
+} {{value a} {value c}}
+do_execsql_test vtabA-1.7 {
+  DELETE FROM t1e;
+  INSERT INTO t1e SELECT 'abc','def';
+} {}
+do_execsql_test vtabA-1.8 {
+  INSERT INTO t1e VALUES('ghi','jkl'),('mno','pqr'),('stu','vwx');
+} {}
+do_execsql_test vtabA-1.9 {
+  SELECT a,b,c, '|' FROM t1e ORDER BY 1;
+} {abc {} def | ghi {} jkl | mno {} pqr | stu {} vwx |}
+
+
+# Test that the expansion of a '*' expression in the result set of
+# a SELECT does not include the hidden column.
+#
+do_test vtabA-1.20 {
+  execsql {
+    INSERT INTO t1e SELECT * FROM t1e;
+  }
+} {}
+do_test vtabA-1.21 {
+  execsql {
+    SELECT * FROM t1e ORDER BY 1;
+  }
+} {abc def abc def ghi jkl ghi jkl mno pqr mno pqr stu vwx stu vwx}
+
+# Test that the declaration type of the hidden column does not include
+# the token "HIDDEN".
+#
+do_test vtabA-1.22 {
+  get_decltype t1e b
+} {VARCHAR}
+do_test vtabA-1.23 {
+  get_collist t1e
+} {a c}
+
+#----------------------------------------------------------------------
+# These tests vtabA-2.* concentrate on testing that the HIDDEN token
+# is detected and handled correctly in various declarations.
+#
+proc analyse_parse {columns decltype_list} {
+  db eval { DROP TABLE IF EXISTS t1e; }
+  db eval { DROP TABLE IF EXISTS t1; }
+  db eval " CREATE TABLE t1 $columns "
+  db eval { CREATE VIRTUAL TABLE t1e USING echo(t1) }
+  set ret [list [get_collist t1e]]
+  foreach c $decltype_list {
+    lappend ret [get_decltype t1e $c]
+  }
+  set ret
+}
+
+do_test vtabA-2.1 {
+  analyse_parse {(a text, b integer hidden, c hidden)} {a b c}
+} {a TEXT integer {}}
+
+do_test vtabA-2.2 {
+  analyse_parse {(a hidden   , b integerhidden, c hidden1)} {a b c}
+} {{b c} {} integerhidden hidden1}
+
+do_test vtabA-2.3 {
+  analyse_parse {(a HiDden, b HIDDEN, c hidden)} {a b c}
+} {{} {} {} {}}
+
+do_test vtabA-2.4 {
+  analyse_parse {(a whatelse can i hidden test, b HIDDEN hidden)} {a b}
+} {{} {whatelse can i test} hidden}
+
+
+# Ticket [d2f02d37f52bfe23e421f2c60fbb8586ac76ff01]:
+# assertion failure on an UPDATE involving two virtual tables.
+#
+do_test vtabA-3.1 {
+  db eval {
+    DROP TABLE IF EXISTS t1;
+    DROP TABLE IF EXISTS t2;
+    CREATE TABLE t1(a,b);
+    INSERT INTO t1 VALUES(1,2);
+    CREATE TABLE t2(x,y);
+    INSERT INTO t2 VALUES(3,4);
+    CREATE VIRTUAL TABLE vt1 USING echo(t1);
+    CREATE VIRTUAL TABLE vt2 USING echo(t2);
+    UPDATE vt2 SET x=(SELECT a FROM vt1 WHERE b=2) WHERE y=4;
+    SELECT * FROM t2;
+  }
+} {1 4}
+
+finish_test
diff --git a/test/vtabB.test b/test/vtabB.test
new file mode 100644
index 0000000000000000000000000000000000000000..201e97895043c05a411d733067e31cb937db2390
--- /dev/null
+++ b/test/vtabB.test
@@ -0,0 +1,79 @@
+# 2008 April 10
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is is verifying that a virtual table in the
+# TEMP database that is created and dropped within a transaction
+# is handled correctly.  Ticket #2994.
+#
+# Also make sure a virtual table on the right-hand side of an IN operator
+# is materialized rather than being used directly.  Ticket #3082.
+#
+
+#
+# $Id: vtabB.test,v 1.2 2008/04/25 12:10:15 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+do_test vtabB-1.1 {
+  register_echo_module [sqlite3_connection_pointer db]
+  execsql {
+    CREATE TABLE t1(x);
+    BEGIN;
+    CREATE VIRTUAL TABLE temp.echo_test1 USING echo(t1);
+    DROP TABLE echo_test1;
+    ROLLBACK;
+  }
+} {}
+
+do_test vtabB-2.1 {
+  execsql {
+    INSERT INTO t1 VALUES(2);
+    INSERT INTO t1 VALUES(3);
+    CREATE TABLE t2(y);
+    INSERT INTO t2 VALUES(1);
+    INSERT INTO t2 VALUES(2);
+    CREATE VIRTUAL TABLE echo_t2 USING echo(t2);
+    SELECT * FROM t1 WHERE x IN (SELECT rowid FROM t2);
+  }
+} {2}
+do_test vtab8-2.2 {
+  execsql {
+    SELECT rowid FROM echo_t2
+  }
+} {1 2}
+do_test vtabB-2.3 {
+  execsql {
+    SELECT * FROM t1 WHERE x IN (SELECT rowid FROM t2);
+  }
+} {2}
+do_test vtabB-2.4 {
+  execsql {
+    SELECT * FROM t1 WHERE x IN (SELECT rowid FROM echo_t2);
+  }
+} {2}
+do_test vtabB-2.5 {
+  execsql {
+    SELECT * FROM t1 WHERE x IN (SELECT y FROM t2);
+  }
+} {2}
+do_test vtabB-2.6 {
+  execsql {
+    SELECT * FROM t1 WHERE x IN (SELECT y FROM echo_t2);
+  }
+} {2}
+
+finish_test
diff --git a/test/vtabC.test b/test/vtabC.test
new file mode 100644
index 0000000000000000000000000000000000000000..ca78b706f6ca5db198d73af21f5e40038738fe95
--- /dev/null
+++ b/test/vtabC.test
@@ -0,0 +1,116 @@
+# 2008 April 10
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is is verifying that the xUpdate, xSync, xCommit
+# and xRollback methods are only invoked after an xBegin or xCreate.
+# Ticket #3083.
+#
+# $Id: vtabC.test,v 1.2 2009/04/07 14:14:23 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+ifcapable !trigger { finish_test ; return }
+
+
+# N will be the number of virtual tables we have defined.
+#
+unset -nocomplain N
+for {set N 1} {$N<=20} {incr N} {
+  db close
+  forcedelete test.db test.db-journal
+  sqlite3 db test.db
+  register_echo_module [sqlite3_connection_pointer db]
+
+  # Create $N tables and $N virtual tables to echo them.
+  #
+  unset -nocomplain tablist
+  set tablist {}
+  do_test vtabC-1.$N.1 {
+    for {set i 1} {$i<=$::N} {incr i} {
+      execsql "CREATE TABLE t${i}(x)"
+      execsql "CREATE VIRTUAL TABLE vt$i USING echo(t$i)"
+      lappend ::tablist t$i vt$i
+    }
+    execsql {SELECT count(*) FROM sqlite_master}
+  } [expr {$N*2}]
+  do_test vtabC-1.$N.2 {
+    execsql {SELECT name FROM sqlite_master}
+  } $tablist
+
+  # Create a table m and add triggers to make changes on all
+  # of the virtual tables when m is changed.
+  #
+  do_test vtabC-1.$N.3 {
+    execsql {CREATE TABLE m(a)}
+    set sql "CREATE TRIGGER rins AFTER INSERT ON m BEGIN\n"
+    for {set i 1} {$i<=$::N} {incr i} {
+      append sql "  INSERT INTO vt$i VALUES(NEW.a+$i);\n"
+    }
+    append sql "END;"
+    execsql $sql
+    execsql {SELECT count(*) FROM sqlite_master}
+  } [expr {$N*2+2}]
+  do_test vtabC-1.$N.4 {
+    execsql {
+      INSERT INTO m VALUES(1000);
+      SELECT * FROM m;
+    }
+  } {1000}
+  for {set j 1} {$j<=$::N} {incr j} {
+    do_test vtabC-1.$N.5.$j {
+      execsql "SELECT * FROM t$::j"
+    } [expr {$j+1000}]
+    do_test vtabC-1.$N.6.$j {
+      execsql "SELECT * FROM vt$::j"
+    } [expr {$j+1000}]
+  }
+  do_test vtabC-1.$N.7 {
+    set sql "CREATE TRIGGER rins2 BEFORE INSERT ON m BEGIN\n"
+    for {set i 1} {$i<=$::N} {incr i} {
+      append sql "  INSERT INTO vt$i VALUES(NEW.a+$i*100);\n"
+    }
+    for {set i 1} {$i<=$::N} {incr i} {
+      append sql "  INSERT INTO vt$i VALUES(NEW.a+$i*10000);\n"
+    }
+    append sql "END;"
+    execsql $sql
+    execsql {SELECT count(*) FROM sqlite_master}
+  } [expr {$N*2+3}]
+  do_test vtabC-1.$N.8 {
+    execsql {
+      INSERT INTO m VALUES(9000000);
+      SELECT * FROM m;
+    }
+  } {1000 9000000}
+  unset -nocomplain res
+  for {set j 1} {$j<=$::N} {incr j} {
+    set res [expr {$j+1000}]
+    lappend res [expr {$j*100+9000000}]
+    lappend res [expr {$j*10000+9000000}]
+    lappend res [expr {$j+9000000}]
+    do_test vtabC-1.$N.9.$j {
+      execsql "SELECT * FROM t$::j"
+    } $res
+    do_test vtabC-1.$N.10.$j {
+      execsql "SELECT * FROM vt$::j"
+    } $res
+  }
+}
+unset -nocomplain res N i j
+
+
+finish_test
diff --git a/test/vtabD.test b/test/vtabD.test
new file mode 100644
index 0000000000000000000000000000000000000000..589f518983d0b0abdf945175fb1067eecf486b3a
--- /dev/null
+++ b/test/vtabD.test
@@ -0,0 +1,69 @@
+# 2009 April 14
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is creating and dropping virtual tables.
+#
+# $Id: vtabD.test,v 1.3 2009/06/05 17:09:12 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !vtab||!schema_pragmas { finish_test ; return }
+
+# Register the echo module
+register_echo_module [sqlite3_connection_pointer db]
+
+do_test vtabD-1.1 {
+  execsql {
+    CREATE TABLE t1(a, b);
+    CREATE INDEX i1 ON t1(a);
+    CREATE INDEX i2 ON t1(b);
+    CREATE VIRTUAL TABLE tv1 USING echo(t1);
+  }
+} {}
+do_test vtabD-1.2 {
+  execsql BEGIN
+  for {set i 0} {$i < 100000} {incr i} {
+    execsql { INSERT INTO t1 VALUES($i, $i*$i) }
+  }
+  execsql COMMIT
+} {}
+do_test vtabD-1.3 {
+  execsql { SELECT * FROM tv1 WHERE a = 1 OR b = 4 }
+} {1 1 2 4}
+do_test vtabD-1.4 {
+  execsql { SELECT * FROM tv1 WHERE a = 1 OR b = 1 }
+} {1 1}
+do_test vtabD-1.5 {
+  execsql { SELECT * FROM tv1 WHERE (a > 0 AND a < 5) OR (b > 15 AND b < 65) }
+} {1 1 2 4 3 9 4 16 5 25 6 36 7 49 8 64}
+
+do_test vtabD-1.6 {
+  execsql { SELECT * FROM tv1 WHERE a < 500 OR b = 810000 }
+} [execsql {
+  SELECT * FROM t1 WHERE a < 500;
+  SELECT * FROM t1 WHERE b = 810000 AND NOT (a < 500);
+}]
+
+do_test vtabD-1.7 {
+  execsql { SELECT * FROM tv1 WHERE a < 90000 OR b = 8100000000 }
+} [execsql {
+  SELECT * FROM t1 WHERE a < 90000;
+  SELECT * FROM t1 WHERE b = 8100000000 AND NOT (a < 90000);
+}]
+
+if {[working_64bit_int]} {
+do_test vtabD-1.8 {
+  execsql { SELECT * FROM tv1 WHERE a = 90001 OR b = 810000 }
+} {90001 8100180001 900 810000}
+}
+
+finish_test
diff --git a/test/vtabE.test b/test/vtabE.test
new file mode 100644
index 0000000000000000000000000000000000000000..cbb6a1e30a622cdb81700a97f1cdbdffaca9b16f
--- /dev/null
+++ b/test/vtabE.test
@@ -0,0 +1,52 @@
+# 2009 November 23
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# The focus of this file making sure the register cache logic works
+# correctly with virtual tables.  Ticket [16fbf14cb2].
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+register_tclvar_module [sqlite3_connection_pointer db]
+
+unset -nocomplain vtabE
+set vtabE(vtabE1) 11
+set vtabE(vtabE2) 22
+unset -nocomplain vtabE1
+set vtabE1(w) x
+set vtabE1(y) z
+unset -nocomplain vtabE2
+set vtabE2(a) b
+set vtabE2(c) d
+
+do_test vtabE-1 {
+  db eval {
+    CREATE VIRTUAL TABLE t1 USING tclvar;
+    CREATE VIRTUAL TABLE t2 USING tclvar;
+    CREATE TABLE t3(a INTEGER PRIMARY KEY, b);
+    SELECT t1.name, t1.arrayname, t1.value,
+           t2.name, t2.arrayname, t2.value,
+           abs(t3.b + abs(t2.value + abs(t1.value)))
+      FROM t1 LEFT JOIN t2 ON t2.name = t1.arrayname
+           LEFT JOIN t3 ON t3.a=t2.value
+     WHERE t1.name = 'vtabE'
+     ORDER BY t1.value, t2.value;
+  }
+} {vtabE vtabE1 11 vtabE1 w x {} vtabE vtabE1 11 vtabE1 y z {} vtabE vtabE2 22 vtabE2 a b {} vtabE vtabE2 22 vtabE2 c d {}}
+
+finish_test
diff --git a/test/vtabF.test b/test/vtabF.test
new file mode 100644
index 0000000000000000000000000000000000000000..7b11cb8c71acde8a392b2a72ffc26ba14d392506
--- /dev/null
+++ b/test/vtabF.test
@@ -0,0 +1,45 @@
+# 2011 Aug 1
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. 
+# This file checks to make sure IS NOT NULL constraints work on
+# virtual tables.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !vtab||!schema_pragmas { finish_test ; return }
+
+# Register the echo module
+register_echo_module [sqlite3_connection_pointer db]
+
+do_test vtabF-1.1 {
+  execsql {
+    CREATE TABLE t1(a, b);
+    CREATE INDEX i1 ON t1(a);
+    CREATE INDEX i2 ON t1(b);
+    INSERT INTO t1 VALUES(10,110);
+    INSERT INTO t1 VALUES(11,111);
+    INSERT INTO t1 SELECT a+2, b+2 FROM t1;
+    INSERT INTO t1 SELECT null, b+4 FROM t1;
+    INSERT INTO t1 SELECT null, b+8 FROM t1;
+    INSERT INTO t1 SELECT null, b+16 FROM t1;
+    ANALYZE;
+    CREATE VIRTUAL TABLE tv1 USING echo(t1);
+    SELECT b FROM t1 WHERE a IS NOT NULL;
+  }
+} {110 111 112 113}
+do_test vtabF-1.2 {
+  execsql {SELECT b FROM tv1 WHERE a IS NOT NULL}
+} {110 111 112 113}
+
+
+finish_test
diff --git a/test/vtabH.test b/test/vtabH.test
new file mode 100644
index 0000000000000000000000000000000000000000..cf3dcafd9a4db08fb8cbb0680940c78918ee7107
--- /dev/null
+++ b/test/vtabH.test
@@ -0,0 +1,261 @@
+# 2015 Nov 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. Specifically,
+# it tests that the GLOB, LIKE and REGEXP operators are correctly exposed
+# to virtual table implementations.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix vtabH
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+register_echo_module db
+
+do_execsql_test 1.0 {
+  CREATE TABLE t6(a, b TEXT);
+  CREATE INDEX i6 ON t6(b, a);
+  CREATE VIRTUAL TABLE e6 USING echo(t6);
+}
+
+ifcapable !icu {
+  foreach {tn sql expect} {
+    1 "SELECT * FROM e6 WHERE b LIKE '8abc'" {
+      xBestIndex 
+         {SELECT rowid, a, b FROM 't6' WHERE b >= ? AND b < ? AND b like ?}
+      xFilter
+         {SELECT rowid, a, b FROM 't6' WHERE b >= ? AND b < ? AND b like ?}
+         8ABC 8abd 8abc
+    }
+  
+    2 "SELECT * FROM e6 WHERE b GLOB '8abc'" {
+       xBestIndex
+         {SELECT rowid, a, b FROM 't6' WHERE b >= ? AND b < ? AND b glob ?}
+       xFilter
+         {SELECT rowid, a, b FROM 't6' WHERE b >= ? AND b < ? AND b glob ?}
+         8abc 8abd 8abc
+    }
+    3 "SELECT * FROM e6 WHERE b LIKE '8e/'" {
+      xBestIndex {SELECT rowid, a, b FROM 't6' WHERE b like ?}
+      xFilter {SELECT rowid, a, b FROM 't6' WHERE b like ?} 8e/
+    }
+    4 "SELECT * FROM e6 WHERE b GLOB '8e/'" {
+      xBestIndex {SELECT rowid, a, b FROM 't6' WHERE b glob ?}
+      xFilter {SELECT rowid, a, b FROM 't6' WHERE b glob ?} 8e/
+    }
+  } {
+    do_test 1.$tn {
+      set echo_module {}
+      execsql $sql
+      set ::echo_module
+    } [list {*}$expect]
+  }
+}
+
+
+#--------------------------------------------------------------------------
+
+register_tclvar_module db
+set ::xyz 10
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE vars USING tclvar;
+  SELECT name, arrayname, value FROM vars WHERE name = 'xyz';
+} {xyz {} 10}
+
+set x1 aback
+set x2 abaft
+set x3 abandon
+set x4 abandonint
+set x5 babble
+set x6 baboon
+set x7 backbone
+set x8 backarrow
+set x9 castle
+
+db func glob -argcount 2 gfunc
+proc gfunc {a b} {
+  incr ::gfunc
+  return 1
+}
+
+db func like -argcount 2 lfunc
+proc lfunc {a b} {
+  incr ::gfunc 100
+  return 1
+}
+
+db func regexp -argcount 2 rfunc
+proc rfunc {a b} {
+  incr ::gfunc 10000
+  return 1
+}
+
+foreach ::tclvar_set_omit {0 1} {
+  foreach {tn expr res cnt} {
+    1 {value GLOB 'aban*'} {x3 abandon x4 abandonint} 2
+    2 {value LIKE '%ac%'}  {x1 aback x7 backbone x8 backarrow} 300
+    3 {value REGEXP '^......$'}  {x5 babble x6 baboon x9 castle} 30000
+  } {
+    db cache flush
+    set ::gfunc 0
+    if {$::tclvar_set_omit} {set cnt 0}
+
+    do_test 2.$tclvar_set_omit.$tn.1 {
+      execsql "SELECT name, value FROM vars WHERE name MATCH 'x*' AND $expr"
+    } $res
+
+    do_test 2.$tclvar_set_omit.$tn.2 {
+      set ::gfunc
+    } $cnt
+  }
+}
+
+#-------------------------------------------------------------------------
+#
+if {$tcl_platform(platform)=="windows"} {
+  set drive [string range [pwd] 0 1]
+  set ::env(fstreeDrive) $drive
+}
+reset_db
+register_fs_module db
+if {$tcl_platform(platform)!="windows" || \
+    [regexp -nocase -- {^[A-Z]:} $drive]} {
+  do_execsql_test 3.0 {
+    SELECT name FROM fsdir WHERE dir = '.' AND name = 'test.db';
+    SELECT name FROM fsdir WHERE dir = '.' AND name = '.'
+  } {test.db .}
+
+  proc sort_files { names {nocase false} } {
+    if {$nocase && $::tcl_platform(platform) eq "windows"} {
+      return [lsort -nocase $names]
+    } else {
+      return [lsort $names]
+    }
+  }
+
+  proc list_root_files {} {
+    if {$::tcl_platform(platform) eq "windows"} {
+      set res [list]; set dir $::env(fstreeDrive)/; set names [list]
+      eval lappend names [glob -nocomplain -directory $dir -- *]
+      foreach name $names {
+        if {[string index [file tail $name] 0] eq "."} continue
+        if {[file attributes $name -hidden]} continue
+        if {[file attributes $name -system]} continue
+        lappend res $name
+      }
+      return [sort_files $res true]
+    } else {
+      return [sort_files [string map {/ {}} [glob -nocomplain -- /*]]]
+    }
+  }
+
+  proc list_files { pattern } {
+    if {$::tcl_platform(platform) eq "windows"} {
+      set res [list]; set names [list]
+      eval lappend names [glob -nocomplain -- $pattern]
+      foreach name $names {
+        if {[string index [file tail $name] 0] eq "."} continue
+        if {[file attributes $name -hidden]} continue
+        if {[file attributes $name -system]} continue
+        lappend res $name
+      }
+      return [sort_files $res]
+    } else {
+      return [sort_files [glob -nocomplain -- $pattern]]
+    }
+  }
+
+  # Read the first 5 entries from the root directory.  Except, ignore
+  # files that contain the "$" character in their names as these are
+  # special files on some Windows platforms.
+  #
+  set res [list]
+  set root_files [list_root_files]
+  foreach p $root_files {
+    if {$::tcl_platform(platform) eq "windows"} {
+      if {![regexp {\$} $p]} {lappend res $p}
+    } else {
+      lappend res "/$p"
+    }
+  }
+  set num_root_files [llength $root_files]
+  do_test 3.1 {
+    sort_files [execsql {
+      SELECT path FROM fstree WHERE path NOT GLOB '*\$*' LIMIT $num_root_files;
+    }] true
+  } [sort_files $res true]
+
+  # Read all entries in the current directory.
+  #
+  proc contents {pattern} {
+    set res [list]
+    foreach f [list_files $pattern] {
+      lappend res $f
+      if {[file isdir $f]} {
+        set res [concat $res [contents "$f/*"]]
+      }
+    }
+    set res
+  }
+  set pwd "[pwd]/*"
+  set res [contents $pwd]
+  do_execsql_test 3.2 {
+    SELECT path FROM fstree WHERE path GLOB $pwd ORDER BY 1
+  } [sort_files $res]
+
+  # Add some sub-directories and files to the current directory.
+  #
+  do_test 3.3 {
+    catch { file delete -force subdir }
+    foreach {path sz} {
+      subdir/x1.txt     143
+      subdir/x2.txt     153
+    } {
+      set dir [file dirname $path]
+      catch { file mkdir $dir }
+      set fd [open $path w]
+      puts -nonewline $fd [string repeat 1 $sz]
+      close $fd
+    }
+  } {}
+
+  set pwd [pwd]
+  if {![string match {*[_%]*} $pwd]} {
+    do_execsql_test 3.5 {
+      SELECT path, size FROM fstree 
+       WHERE path GLOB $pwd || '/subdir/*' ORDER BY 1
+    } [list \
+      "$pwd/subdir/x1.txt" 143 \
+      "$pwd/subdir/x2.txt" 153 \
+    ]
+    do_execsql_test 3.6 {
+      SELECT path, size FROM fstree
+       WHERE path LIKE $pwd || '/subdir/%' ORDER BY 1
+    } [list \
+      "$pwd/subdir/x1.txt" 143 \
+      "$pwd/subdir/x2.txt" 153 \
+    ]
+    do_execsql_test 3.7 {
+      SELECT sum(size) FROM fstree WHERE path LIKE $pwd || '/subdir/%'
+    } 296
+    do_execsql_test 3.8 {
+      SELECT size FROM fstree WHERE path = $pwd || '/subdir/x1.txt'
+    } 143
+  }
+
+}
+
+
+finish_test
diff --git a/test/vtabI.test b/test/vtabI.test
new file mode 100644
index 0000000000000000000000000000000000000000..4b5a0a8c32e493ec9ff0f18e13fcbd4801457270
--- /dev/null
+++ b/test/vtabI.test
@@ -0,0 +1,126 @@
+# 2015 Nov 26
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. Specifically,
+# it tests the sqlite3_index_info.colUsed variable is set correctly.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix vtabI
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+register_echo_module db
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b, c, d, e);
+  CREATE VIRTUAL TABLE e1 USING echo(t1);
+}
+
+foreach {tn query filter} {
+  1 {SELECT * FROM e1} 
+    {SELECT rowid, a, b, c, d, e FROM 't1'}
+
+  2 {SELECT a, b FROM e1} 
+    {SELECT rowid, a, b, NULL, NULL, NULL FROM 't1'}
+
+  3 {SELECT count(*) FROM e1 GROUP BY b} 
+    {SELECT rowid, NULL, b, NULL, NULL, NULL FROM 't1'}
+
+  4 {SELECT count(*) FROM e1 GROUP BY b HAVING a=?} 
+    {SELECT rowid, a, b, NULL, NULL, NULL FROM 't1'}
+
+  5 {SELECT a FROM e1 WHERE c=?}
+    {SELECT rowid, a, NULL, c, NULL, NULL FROM 't1'}
+
+  6 {SELECT a FROM e1 ORDER BY e}
+    {SELECT rowid, a, NULL, NULL, NULL, e FROM 't1'}
+
+  7 {SELECT a FROM e1 ORDER BY e, d}
+    {SELECT rowid, a, NULL, NULL, d, e FROM 't1'}
+} {
+  do_test 1.$tn {
+    set ::echo_module [list]
+    execsql $query
+    set idx [lsearch -exact $::echo_module xFilter]
+    lindex $::echo_module [expr $idx+1]
+  } $filter
+}
+
+#-------------------------------------------------------------------------
+# Tests with a table with more than 64 columns.
+#
+proc all_col_list {} {
+  set L [list]
+  for {set i 1} {$i <= 100} {incr i} { lappend L "c$i" }
+  set L
+}
+
+proc part_col_list {cols} {
+  set L [list]
+  for {set i 1} {$i <= 100} {incr i} { 
+    set c "c$i"
+    if {[lsearch $cols $c]>=0} {
+      lappend L "c$i" 
+    } else {
+      lappend L NULL
+    }
+  }
+  set L
+}
+proc CL {args} {
+  join [part_col_list $args] ", "
+}
+proc CLT {args} {
+  set cols $args
+  for {set i 64} {$i <= 100} {incr i} {
+    lappend cols "c$i"
+  }
+  join [part_col_list $cols] ", "
+}
+
+do_test 2.0 {
+  execsql "CREATE TABLE t2([join [all_col_list] ,])"
+  execsql "CREATE VIRTUAL TABLE e2 USING echo(t2)"
+} {}
+
+foreach {tn query filter} {
+  1 {SELECT c1, c10, c20 FROM e2} 
+    {SELECT rowid, [CL c1 c10 c20] FROM 't2'}
+
+  2 {SELECT c40, c50, c60 FROM e2} 
+    {SELECT rowid, [CL c40 c50 c60] FROM 't2'}
+
+  3 {SELECT c7, c80, c90 FROM e2} 
+    {SELECT rowid, [CLT c7] FROM 't2'}
+
+  4 {SELECT c64 FROM e2} 
+    {SELECT rowid, [CLT c64] FROM 't2'}
+
+  5 {SELECT c63 FROM e2} 
+    {SELECT rowid, [CL c63] FROM 't2'}
+
+  6 {SELECT c22 FROM e2 ORDER BY c50, c70} 
+    {SELECT rowid, [CLT c22 c50] FROM 't2'}
+
+} {
+  do_test 2.$tn {
+    set ::echo_module [list]
+    execsql $query
+    set idx [lsearch -exact $::echo_module xFilter]
+    lindex $::echo_module [expr $idx+1]
+  } [subst $filter]
+}
+
+finish_test
diff --git a/test/vtabJ.test b/test/vtabJ.test
new file mode 100644
index 0000000000000000000000000000000000000000..123009f0e20d87061d14ee3b732c63d28fe19d88
--- /dev/null
+++ b/test/vtabJ.test
@@ -0,0 +1,154 @@
+# 2017-08-10
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements tests of writing to WITHOUT ROWID virtual tables
+# using the tclvar eponymous virtual table.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix vtabJ
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+register_tclvar_module db
+
+unset -nocomplain vtabJ
+do_test 100 {
+  set vtabJ(1) this
+  set vtabJ(two) is
+  set vtabJ(3) {a test}
+  db eval {
+    SELECT fullname, value FROM tclvar WHERE name='vtabJ' ORDER BY fullname;
+  }
+} {vtabJ(1) this vtabJ(3) {a test} vtabJ(two) is}
+
+do_execsql_test 110 {
+  INSERT INTO tclvar(fullname, value)
+    VALUES('vtabJ(4)',4),('vtabJ(five)',555);
+  SELECT fullname, value FROM tclvar WHERE name='vtabJ' ORDER BY fullname;
+} {vtabJ(1) this vtabJ(3) {a test} vtabJ(4) 4 vtabJ(five) 555 vtabJ(two) is}
+do_test 111 {
+  set res {}
+  foreach vname [lsort [array names vtabJ]] {
+    lappend res vtabJ($vname) $vtabJ($vname)
+  }
+  set res
+} {vtabJ(1) this vtabJ(3) {a test} vtabJ(4) 4 vtabJ(five) 555 vtabJ(two) is}
+
+do_test 120 {
+  db eval {
+    INSERT INTO tclvar(fullname, value) VALUES('vtabJ(4)',444);
+  }
+  set vtabJ(4)
+} {444}
+
+do_test 130 {
+  db eval {
+    INSERT INTO tclvar(fullname, value) VALUES('vtabJ(4)',NULL);
+  }
+  info exists vtabJ(4)
+} {0}
+
+do_test 140 {
+  db eval {
+    UPDATE tclvar SET value=55 WHERE fullname='vtabJ(five)';
+  }
+  set vtabJ(five)
+} {55}
+
+do_test 150 {
+  db eval {
+    UPDATE tclvar SET fullname='vtabJ(5)' WHERE fullname='vtabJ(five)';
+  }
+  set vtabJ(5)
+} {55}
+do_test 151 {
+  info exists vtabJ(five)
+} {0}
+do_test 152 {
+  set res {}
+  foreach vname [lsort [array names vtabJ]] {
+    lappend res vtabJ($vname) $vtabJ($vname)
+  }
+  set res
+} {vtabJ(1) this vtabJ(3) {a test} vtabJ(5) 55 vtabJ(two) is}
+
+do_execsql_test 160 {
+  SELECT fullname FROM tclvar WHERE arrayname='two'
+} {vtabJ(two)}
+do_execsql_test 161 {
+  DELETE FROM tclvar WHERE arrayname='two';
+  SELECT fullname, value FROM tclvar WHERE name='vtabJ' ORDER BY fullname;
+} {vtabJ(1) this vtabJ(3) {a test} vtabJ(5) 55}
+do_test 162 {
+  set res {}
+  foreach vname [lsort [array names vtabJ]] {
+    lappend res vtabJ($vname) $vtabJ($vname)
+  }
+  set res
+} {vtabJ(1) this vtabJ(3) {a test} vtabJ(5) 55}
+
+# Try to trick the module into updating the same variable twice for a
+# single UPDATE statement.
+#
+do_execsql_test 171 {
+  INSERT INTO tclvar(fullname, value) VALUES('xx', 'a');
+  SELECT name, value FROM tclvar where name = 'xx';
+} {xx a}
+do_execsql_test 172 {
+  UPDATE tclvar SET value = value || 't' 
+  WHERE name = 'xx' OR name = 'x'||'x';
+  SELECT name, value FROM tclvar where name = 'xx';
+} {xx at}
+do_execsql_test 173 {
+  UPDATE tclvar SET value = value || 't' 
+  WHERE name = 'xx' OR name BETWEEN 'xx' AND 'xx';
+  SELECT name, value FROM tclvar where name = 'xx';
+} {xx att}
+
+do_execsql_test 181 {
+  DELETE FROM tclvar WHERE name BETWEEN 'xx' AND 'xx' OR name='xx';
+  SELECT name, value FROM tclvar where name = 'xx';
+} {}
+
+#-------------------------------------------------------------------------
+
+do_execsql_test 200 {
+  CREATE TABLE var(k TEXT, v TEXT);
+  INSERT INTO var VALUES('testvar1', 10);
+  INSERT INTO var VALUES('testvar2', 20);
+  INSERT INTO var VALUES('testvar3', 30);
+}
+
+do_test 210 {
+  foreach {testvar1 testvar2 testvar3} {1 2 3} {}
+  execsql {
+    UPDATE tclvar SET value = var.v FROM var WHERE name = var.k;
+  }
+  list $testvar1 $testvar2 $testvar3
+} {10 20 30}
+
+do_test 220 {
+  execsql {
+    CREATE TABLE nam(k TEXT, v TEXT);
+    INSERT INTO nam VALUES('testvar1', 'tv1');
+    INSERT INTO nam VALUES('testvar2', 'tv2');
+    INSERT INTO nam VALUES('testvar3', 'tv3');
+    UPDATE tclvar SET fullname = nam.v FROM nam WHERE name = nam.k;
+  }
+  list $tv1 $tv2 $tv3
+} {10 20 30}
+
+
+finish_test
diff --git a/test/vtabK.test b/test/vtabK.test
new file mode 100644
index 0000000000000000000000000000000000000000..07fe9c1312ff345513e24c8999b959802344261a
--- /dev/null
+++ b/test/vtabK.test
@@ -0,0 +1,83 @@
+# 2020-09-24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements tests for a strange scenario discovered by
+# dbsqlfuzz (0ad6d441f9bf3dfc32626a9900bc1700495b16f9) in which a
+# virtual table is named "sqlite_stat1".
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix vtabK
+
+ifcapable !vtab||!rtree||!fts5 {
+  finish_test
+  return
+}
+
+do_execsql_test 100 {
+  CREATE TABLE t1(x);
+  INSERT INTO t1 VALUES(123);
+  PRAGMA writable_schema=ON;
+  CREATE VIRTUAL TABLE sqlite_stat1 USING fts5(a);
+  PRAGMA writable_schema=OFF;
+  CREATE VIRTUAL TABLE t3 USING fts5(b);
+  INSERT INTO t3 VALUES('this is a test');
+}
+do_catchsql_test 110 {
+  CREATE VIRTUAL TABLE t2 USING rtree(id,x,y);
+} {1 {no such column: stat}}
+do_execsql_test 120 {
+  SELECT * FROM t1;
+} {123}
+do_execsql_test 130 {
+  INSERT INTO t3(b) VALUES('Four score and seven years ago');
+  SELECT * FROM t3 WHERE t3 MATCH 'this';
+} {{this is a test}}
+do_execsql_test 140 {
+  SELECT * FROM t3 WHERE t3 MATCH 'four seven';
+} {{Four score and seven years ago}}
+do_execsql_test 150 {
+  INSERT INTO sqlite_stat1(a)
+  VALUES('We hold these truths to be self-evident...');
+  SELECT * FROM sqlite_stat1;
+} {{We hold these truths to be self-evident...}}
+do_catchsql_test 160 {
+  ANALYZE;
+} {1 {database disk image is malformed}}
+do_execsql_test 170 {
+  PRAGMA integrity_check;
+} {ok}
+
+# Follow-on dbsqlfuzz bc02a0cde82dee801a8d6f653d2831680f87dca1
+reset_db
+do_execsql_test 200 {
+  CREATE TABLE t1(a);
+  INSERT INTO t1 VALUES('Ebed-malech');
+  CREATE TABLE x(a);
+  PRAGMA writable_schema=ON;
+  CREATE VIRTUAL TABLE sqlite_stat1 USING fts5(a);
+} {}
+do_catchsql_test 210 {
+  CREATE VIRTUAL TABLE t2 USING rtree(id,x,y);
+} {1 {no such column: stat}}
+do_execsql_test 220 {
+  SELECT * FROM t1;
+} {Ebed-malech}
+
+# Follow-on dbsqlfuzz a097eaad43c3c845b236126df92fb49b25449b0c
+reset_db
+do_catchsql_test 300 {
+  CREATE VIRTUAL TABLE t1 USING rtree(a,b,c);
+  CREATE TABLE t2(x);
+  ALTER TABLE t2 ADD d GENERATED ALWAYS AS (c IN (SELECT 1 FROM t1)) VIRTUAL;
+} {1 {error in table t2 after add column: subqueries prohibited in generated columns}}
+  
+finish_test
diff --git a/test/vtabL.test b/test/vtabL.test
new file mode 100644
index 0000000000000000000000000000000000000000..45528edcbdddc5a2ca287f32bb07d20e563aba8a
--- /dev/null
+++ b/test/vtabL.test
@@ -0,0 +1,75 @@
+# 2024-03-26
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix vtabL
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+register_tcl_module db
+
+proc vtab_command {method args} {
+  switch -- $method {
+    xConnect {
+      return $::create_table_sql
+    }
+  }
+
+  return {}
+}
+
+foreach {tn cts} {
+  1 {SELECT 123}
+  2 {SELECT 123, 456}
+  3 {INSERT INTO t1 VALUES(5, 6)}
+  4 {CREATE INDEX i1 ON t1(a)}
+  5 {CREATE TRIGGER tr1 AFTER INSERT ON t1 BEGIN SELECT 1; END;}
+  6 {DROP TABLE nosuchtable}
+  7 {DROP TABLE x1}
+  8 {DROP TABLE t1}
+} {
+  set ::create_table_sql $cts
+  do_catchsql_test 1.$tn {
+    CREATE VIRTUAL TABLE x1 USING tcl(vtab_command);
+  } {1 {declare_vtab: syntax error}}
+}
+
+foreach {tn cts} {
+  9 {CREATE TABLE xyz AS SELECT * FROM sqlite_schema}
+  10 {CREATE TABLE xyz AS SELECT 1 AS 'col'}
+} {
+  set ::create_table_sql $cts
+  do_catchsql_test 1.$tn {
+    CREATE VIRTUAL TABLE x1 USING tcl(vtab_command);
+  } {1 {declare_vtab: SQL logic error}}
+}
+
+foreach {tn cts} {
+  1 {CREATE TABLE IF NOT EXISTS t1(a, b)}
+  2 {CREATE TABLE ""(a, b PRIMARY KEY) WITHOUT ROWID}
+} {
+  set ::create_table_sql $cts
+  execsql { DROP TABLE IF EXISTS x1 }
+  do_execsql_test 2.$tn.1 {
+    CREATE VIRTUAL TABLE x1 USING tcl(vtab_command);
+  }
+  do_execsql_test 2.$tn.2 {
+    SELECT a, b FROM x1
+  }
+}
+
+finish_test
+
diff --git a/test/vtab_alter.test b/test/vtab_alter.test
new file mode 100644
index 0000000000000000000000000000000000000000..64053d1484ffdf05c2385d6334a8fb03ac8a4499
--- /dev/null
+++ b/test/vtab_alter.test
@@ -0,0 +1,103 @@
+# 2007 June 26
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the ALTER TABLE ... RENAME TO
+# command on virtual tables.
+#
+# $Id: vtab_alter.test,v 1.3 2007/12/13 21:54:11 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !vtab||!altertable {
+  finish_test
+  return
+}
+
+# Register the echo module.
+#
+# This test uses a special feature of the echo module. If the name
+# of the virtual table is a prefix of the name of the underlying
+# real table (for example if the v-table is "tbl" and the real table
+# is "tbl_base"), then the name of the real table is modified
+# when an "ALTER TABLE ... RENAME TO" is executed on the v-table.
+# For example:
+#
+#   sqlite> CREATE TABLE t1_base(a, b, c); 
+#   sqlite> CREATE VIRTUAL TABLE t1 USING(t1_base);
+#   sqlite> ALTER TABLE t1 RENAME TO t2;
+#   sqlite> SELECT tbl_name FROM sqlite_master;
+#   t2_base
+#   t2
+#
+register_echo_module [sqlite3_connection_pointer db]
+
+
+# Try to rename an echo table. Make sure nothing terrible happens.
+#
+do_test vtab_alter-1.1 {
+  execsql { CREATE TABLE t1(a, b VARCHAR, c INTEGER) }
+} {}
+do_test vtab_alter-1.2 {
+  execsql { CREATE VIRTUAL TABLE t1echo USING echo(t1) }
+} {}
+do_test vtab_alter-1.3 {
+  catchsql { SELECT * FROM t1echo }
+} {0 {}}
+do_test vtab_alter-1.4 {
+  execsql { ALTER TABLE t1echo RENAME TO new }
+} {}
+do_test vtab_alter-1.5 {
+  catchsql { SELECT * FROM t1echo }
+} {1 {no such table: t1echo}}
+do_test vtab_alter-1.6 {
+  catchsql { SELECT * FROM new }
+} {0 {}}
+
+# Try to rename an echo table that renames its base table. Make 
+# sure nothing terrible happens.
+#
+do_test vtab_alter-2.1 {
+  execsql { 
+    DROP TABLE new;
+    DROP TABLE t1;
+    CREATE TABLE t1_base(a, b, c);
+    CREATE VIRTUAL TABLE t1 USING echo('*_base');
+  }
+} {}
+do_test vtab_alter-2.2 {
+  execsql { 
+    INSERT INTO t1_base VALUES(1, 2, 3);
+    SELECT * FROM t1;
+  }
+} {1 2 3}
+do_test vtab_alter-2.3 {
+  execsql { ALTER TABLE t1 RENAME TO x }
+} {}
+do_test vtab_alter-2.4 {
+  execsql { SELECT * FROM x; }
+} {1 2 3}
+do_test vtab_alter-2.5 {
+  execsql { SELECT * FROM x_base; }
+} {1 2 3}
+
+# Cause an error to occur when the echo module renames its
+# backing store table.
+#
+do_test vtab_alter-3.1 {
+  execsql  { CREATE TABLE y_base(a, b, c) }
+  catchsql { ALTER TABLE x RENAME TO y }
+} {1 {SQL logic error}}
+do_test vtab_alter-3.2 {
+  execsql  { SELECT * FROM x }
+} {1 2 3}
+
+finish_test
diff --git a/test/vtab_err.test b/test/vtab_err.test
new file mode 100644
index 0000000000000000000000000000000000000000..cfc5fc3b2b702b1778f81adabf69a31d36280bd8
--- /dev/null
+++ b/test/vtab_err.test
@@ -0,0 +1,87 @@
+# 2006 June 10
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# $Id: vtab_err.test,v 1.8 2007/09/03 16:12:10 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+
+unset -nocomplain echo_module_begin_fail
+do_ioerr_test vtab_err-1 -tclprep {
+  register_echo_module [sqlite3_connection_pointer db]
+} -sqlbody {
+  BEGIN;
+  CREATE TABLE r(a PRIMARY KEY, b, c);
+  CREATE VIRTUAL TABLE e USING echo(r);
+  INSERT INTO e VALUES(1, 2, 3);
+  INSERT INTO e VALUES('a', 'b', 'c');
+  UPDATE e SET c = 10;
+  DELETE FROM e WHERE a = 'a';
+  COMMIT;
+  BEGIN;
+    CREATE TABLE r2(a, b, c);
+    INSERT INTO r2 SELECT * FROM e;
+    INSERT INTO e SELECT a||'x', b, c FROM r2;
+  COMMIT;
+}
+
+source $testdir/malloc_common.tcl
+
+
+do_malloc_test vtab_err-2 -tclprep { 
+  register_echo_module [sqlite3_connection_pointer db]
+} -sqlbody {
+  BEGIN;
+  CREATE TABLE r(a PRIMARY KEY, b, c);
+  CREATE VIRTUAL TABLE e USING echo(r);
+  INSERT INTO e VALUES(1, 2, 3);
+  INSERT INTO e VALUES('a', 'b', 'c');
+  UPDATE e SET c = 10;
+  DELETE FROM e WHERE a = 'a';
+  COMMIT;
+  BEGIN;
+    CREATE TABLE r2(a, b, c);
+    INSERT INTO r2 SELECT * FROM e;
+    INSERT INTO e SELECT a||'x', b, c FROM r2;
+  COMMIT;
+} 
+
+sqlite3_memdebug_fail -1
+
+reset_db
+register_echo_module [sqlite3_connection_pointer db]
+do_execsql_test vtab_err-3.0 {
+  CREATE TABLE r(a PRIMARY KEY, b, c);
+  CREATE VIRTUAL TABLE e USING echo(r);
+}
+faultsim_save_and_close
+
+do_faultsim_test vtab_err-3 -faults oom-t* -prep {
+  faultsim_restore_and_reopen
+  register_echo_module [sqlite3_connection_pointer db]
+} -body {
+  execsql {
+    BEGIN;
+      CREATE TABLE xyz(x);
+      SELECT a FROM e;
+    COMMIT;
+  }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+finish_test
diff --git a/test/vtab_shared.test b/test/vtab_shared.test
new file mode 100644
index 0000000000000000000000000000000000000000..a9079eac04e4ab6711996ab39c8ae85e302120e1
--- /dev/null
+++ b/test/vtab_shared.test
@@ -0,0 +1,278 @@
+# 2007 April 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file tests interactions between the virtual table and
+# shared-schema functionality.
+#
+# $Id: vtab_shared.test,v 1.3 2009/07/24 17:58:53 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix vtab_shared
+
+ifcapable !vtab||!shared_cache {
+  finish_test
+  return
+}
+
+db close
+sqlite3_enable_shared_cache 1
+sqlite3 db  test.db
+sqlite3 db2 test.db
+
+do_test vtab_shared-1.1 {
+  register_echo_module [sqlite3_connection_pointer db]
+  execsql {
+    CREATE TABLE t0(a, b, c);
+    INSERT INTO t0 VALUES(1, 2, 3);
+    CREATE VIRTUAL TABLE t1 USING echo(t0);
+  }
+} {}
+
+do_test vtab_shared-1.2 {
+  execsql { SELECT * FROM t1 } db
+} {1 2 3}
+
+# Fails because the 'echo' module has not been registered with connection db2
+do_test vtab_shared-1.3 {
+  catchsql { SELECT * FROM t1 } db2
+} {1 {no such module: echo}}
+
+do_test vtab_shared-1.4 {
+  execsql { SELECT * FROM t0 } db2
+} {1 2 3}
+
+do_test vtab_shared-1.5 {
+  register_echo_module [sqlite3_connection_pointer db2]
+  execsql { SELECT * FROM t1 } db
+} {1 2 3}
+
+# Works after the module is registered with db2
+do_test vtab_shared-1.6 {
+  execsql { SELECT * FROM t1 } db2
+} {1 2 3}
+
+# Set a write-lock on table t0 using connection [db]. Then try to read from
+# virtual table t1 using [db2]. That this returns an SQLITE_LOCKED error
+# shows that the correct sqlite3_vtab is being used.
+#
+do_test vtab_shared-1.8.1 {
+  execsql { 
+    BEGIN;
+    INSERT INTO t1 VALUES(4, 5, 6);
+    SELECT * FROM t1;
+  }
+} {1 2 3 4 5 6}
+do_test vtab_shared-1.8.2 {
+  catchsql { SELECT * FROM t1 } db2
+} {1 {database table is locked}}
+do_test vtab_shared-1.8.3 {
+  catchsql { SELECT *  FROM t0 } db2
+} {1 {database table is locked: t0}}
+do_test vtab_shared-1.8.4 {
+  execsql { SELECT * FROM t0 } db
+} {1 2 3 4 5 6}
+do_test vtab_shared-1.8.5 {
+  execsql { COMMIT } db
+  execsql { SELECT *  FROM t1 } db2
+} {1 2 3 4 5 6}
+
+# While a SELECT is active on virtual table t1 via connection [db], close 
+# [db2]. This causes the schema to be reset internally. Verify that this
+# does not cause a problem.
+#
+foreach {iTest dbSelect dbClose} {
+  1 db  db2
+  2 db  db2
+  3 db2 db
+} {
+  do_test vtab_shared-1.9.$iTest {
+    set res [list]
+    $dbSelect eval { SELECT * FROM t1 } {
+      if {$a == 1} {$dbClose close}
+      lappend res $a $b $c
+    }
+    sqlite3 $dbClose test.db
+    register_echo_module [sqlite3_connection_pointer $dbClose]
+    set res
+  } {1 2 3 4 5 6}
+}
+
+# Ensure that it is not possible for one connection to DROP a virtual
+# table while a second connection is reading from the database.
+#
+do_test vtab_shared-1.10 {
+  db eval { SELECT * FROM t1 } {
+    set error [catchsql { DROP TABLE t1 } db2]
+    break
+  }
+  set error
+} {1 {database table is locked: sqlite_master}}
+
+do_test vtab_shared-1.11 {
+  execsql {
+    CREATE VIRTUAL TABLE t2 USING echo(t0);
+    CREATE VIRTUAL TABLE t3 USING echo(t0);
+  }
+  execsql { SELECT * FROM t3 } db2
+} {1 2 3 4 5 6}
+
+ifcapable compound {
+  do_test vtab_shared-1.12.1 {
+    db close
+    execsql { 
+      SELECT * FROM t1 UNION ALL
+      SELECT * FROM t2 UNION ALL
+      SELECT * FROM t3 
+    } db2
+  } {1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6}
+  do_test vtab_shared-1.12.2 {
+    sqlite3 db test.db
+    register_echo_module [sqlite3_connection_pointer db]
+    execsql { 
+      SELECT * FROM t1 UNION ALL
+      SELECT * FROM t2 UNION ALL
+      SELECT * FROM t3 
+    } db
+  } {1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6}
+}
+
+# Try a rename or two.
+#
+ifcapable altertable {
+  do_test vtab_shared-1.13.1 {
+    execsql { ALTER TABLE t1 RENAME TO t4 }
+    execsql { SELECT * FROM t4 } db
+  } {1 2 3 4 5 6}
+  do_test vtab_shared-1.13.2 {
+    execsql { SELECT * FROM t4 } db2
+  } {1 2 3 4 5 6}
+  do_test vtab_shared-1.13.3 {
+    execsql { ALTER TABLE t2 RENAME TO t5 }
+    execsql { SELECT * FROM t4 } db2
+  } {1 2 3 4 5 6}
+}
+
+# Try an UPDATE/INSERT/DELETE on a shared vtab as the first statement after a
+# schema is loaded.
+do_test vtab_shared_1.14.1 {
+  db2 close
+  sqlite3 db2 test.db
+  register_echo_module [sqlite3_connection_pointer db2]
+  execsql { SELECT * FROM t3 }
+} {1 2 3 4 5 6}
+do_test vtab_shared_1.14.2 {
+  execsql { 
+    UPDATE t3 SET c = 'six' WHERE c = 6;
+    SELECT * FROM t3;
+  } db2
+} {1 2 3 4 5 six}
+do_test vtab_shared_1.14.3 {
+  db2 close
+  sqlite3 db2 test.db
+  register_echo_module [sqlite3_connection_pointer db2]
+  execsql { SELECT * FROM t3 }
+} {1 2 3 4 5 six}
+do_test vtab_shared_1.14.4 {
+  execsql { 
+    DELETE FROM t3 WHERE c = 'six';
+    SELECT * FROM t3;
+  } db2
+} {1 2 3}
+do_test vtab_shared_1.14.5 {
+  db2 close
+  sqlite3 db2 test.db
+  register_echo_module [sqlite3_connection_pointer db2]
+  execsql { SELECT * FROM t3 }
+} {1 2 3}
+do_test vtab_shared_1.14.6 {
+  execsql { 
+    INSERT INTO t3 VALUES(4, 5, 6);
+    SELECT * FROM t3;
+  } db2
+} {1 2 3 4 5 6}
+
+do_test vtab_shared_1.15.1 {
+  db2 close
+  sqlite3 db2 test.db
+  register_echo_module [sqlite3_connection_pointer db2]
+  execsql { 
+    UPDATE t3 SET c = 'six' WHERE c = 6;
+    SELECT * FROM t3;
+  } db2
+} {1 2 3 4 5 six}
+do_test vtab_shared_1.15.2 {
+  db2 close
+  sqlite3 db2 test.db
+  register_echo_module [sqlite3_connection_pointer db2]
+  execsql { 
+    DELETE FROM t3 WHERE c = 'six';
+    SELECT * FROM t3;
+  } db2
+} {1 2 3}
+do_test vtab_shared_1.15.3 {
+  db2 close
+  sqlite3 db2 test.db
+  register_echo_module [sqlite3_connection_pointer db2]
+  execsql { 
+    INSERT INTO t3 VALUES(4, 5, 6);
+    SELECT * FROM t3;
+  }
+} {1 2 3 4 5 6}
+
+db close
+db2 close
+
+#---------------------------------------------------------------
+# Test calling sqlite3_close() with vtabs on the disconnect list.
+#
+ifcapable rtree {
+  reset_db
+  do_test 2.1.1 {
+    sqlite3 db  test.db
+    sqlite3 db2 test.db
+  
+    # Create a virtual table using [db]. 
+    execsql {
+      CREATE VIRTUAL TABLE rt USING rtree(id, x1, x2);
+      INSERT INTO rt VALUES(1, 2 ,3);
+      SELECT * FROM rt;
+    }
+  
+    # Drop the virtual table using [db2]. The sqlite3_vtab object belonging
+    # to [db] is moved to the sqlite3.pDisconnect list.
+    execsql { DROP TABLE rt } db2
+  
+    # Immediately close [db]. At one point this would fail due to the 
+    # unfinalized statements held by the un-xDisconnect()ed sqlite3_vtab.
+    db close
+  } {}
+  db2 close
+}
+
+ifcapable fts3 {
+  # Same test as above, except using fts3 instead of rtree.
+  reset_db
+  do_test 2.2.1 {
+    sqlite3 db  test.db
+    sqlite3 db2 test.db
+    execsql {
+      CREATE VIRTUAL TABLE ft USING fts3;
+      INSERT INTO ft VALUES('hello world');
+      SELECT * FROM ft;
+    } 
+    execsql { DROP TABLE ft } db2
+    db close
+  } {}
+  db2 close
+}
+
+sqlite3_enable_shared_cache 0
+finish_test
diff --git a/test/vtabdistinct.test b/test/vtabdistinct.test
new file mode 100644
index 0000000000000000000000000000000000000000..e18e121e50e6292d25fc36cb3d0b3c68fcf516d8
--- /dev/null
+++ b/test/vtabdistinct.test
@@ -0,0 +1,41 @@
+# 2022-01-21
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+# This file implements tests for sqlite3_vtab_distinct() interface.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix vtabdistinct
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+load_static_extension db qpvtab
+
+do_execsql_test 1.1 {
+  SELECT ix FROM qpvtab WHERE vn='sqlite3_vtab_distinct';
+} {0}
+do_execsql_test 1.2 {
+  SELECT DISTINCT ix FROM qpvtab WHERE vn='sqlite3_vtab_distinct';
+} {2}
+do_execsql_test 1.3 {
+  SELECT distinct vn, ix FROM qpvtab(3)
+   WHERE +vn IN ('sqlite3_vtab_distinct','nOrderBy');
+} {nOrderBy 2 sqlite3_vtab_distinct 2}
+do_execsql_test 1.4 {
+  SELECT vn, ix FROM qpvtab
+   GROUP BY vn
+  HAVING vn='sqlite3_vtab_distinct';
+} {sqlite3_vtab_distinct 1}
+
+finish_test
diff --git a/test/vtabdrop.test b/test/vtabdrop.test
new file mode 100644
index 0000000000000000000000000000000000000000..1f9309e465b28cfa3b93b88dc1a0b50f8797ace9
--- /dev/null
+++ b/test/vtabdrop.test
@@ -0,0 +1,127 @@
+# 2018 December 28
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# The tests in this file test edge cases surrounding DROP TABLE on 
+# virtual tables.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !vtab { finish_test ; return }
+source $testdir/fts3_common.tcl
+source $testdir/malloc_common.tcl
+
+set testprefix vtabdrop
+
+#-------------------------------------------------------------------------
+# Test that if a DROP TABLE is executed against an rtree table, but the
+# xDestroy() call fails, the rtree table is not dropped, the sqlite_master
+# table is not modified and the internal schema remains intact.
+# 
+ifcapable rtree {
+  do_execsql_test 1.0 {
+    CREATE VIRTUAL TABLE rt USING rtree(id, x1, x2);
+    CREATE TABLE t1(x, y);
+    INSERT INTO t1 VALUES(1, 2);
+  }
+  
+  do_test 1.1 {
+    execsql {
+      BEGIN;
+        INSERT INTO t1 VALUES(3, 4);
+    }
+    db eval { SELECT * FROM t1 } {
+      catchsql { DROP TABLE rt }
+    }
+    execsql COMMIT
+  } {}
+  
+  do_execsql_test 1.2 {
+    SELECT name FROM sqlite_master ORDER BY 1;
+    SELECT * FROM t1;
+    SELECT * FROM rt;
+  } {rt rt_node rt_parent rt_rowid t1 1 2 3 4}
+  
+  db close
+  sqlite3 db test.db
+  
+  do_execsql_test 1.3 {
+    SELECT name FROM sqlite_master ORDER BY 1;
+  } {rt rt_node rt_parent rt_rowid t1}
+}
+
+#-------------------------------------------------------------------------
+# Same as tests 1.*, except with fts5 instead of rtree.
+# 
+ifcapable fts5 {
+  reset_db
+  do_execsql_test 2.0 {
+    CREATE VIRTUAL TABLE ft USING fts5(x);
+    CREATE TABLE t1(x, y);
+    INSERT INTO t1 VALUES(1, 2);
+  }
+  
+  do_test 2.1 {
+    execsql {
+      BEGIN;
+        INSERT INTO t1 VALUES(3, 4);
+    }
+    db eval { SELECT * FROM t1 } {
+      catchsql { DROP TABLE ft }
+    }
+    execsql COMMIT
+  } {}
+  
+  do_execsql_test 2.2 {
+    SELECT name FROM sqlite_master ORDER BY 1;
+  } {ft ft_config ft_content ft_data ft_docsize ft_idx t1}
+  
+  db close
+  sqlite3 db test.db
+  
+  do_execsql_test 2.3 {
+    SELECT name FROM sqlite_master ORDER BY 1;
+  } {ft ft_config ft_content ft_data ft_docsize ft_idx t1}
+}
+
+#-------------------------------------------------------------------------
+# Same as tests 1.*, except with fts3 instead of rtree.
+# 
+ifcapable fts3 {
+  reset_db
+  do_execsql_test 2.0 {
+    CREATE VIRTUAL TABLE ft USING fts3(x);
+    CREATE TABLE t1(x, y);
+    INSERT INTO t1 VALUES(1, 2);
+  }
+  
+  do_test 2.1 {
+    execsql {
+      BEGIN;
+        INSERT INTO t1 VALUES(3, 4);
+    }
+    db eval { SELECT * FROM t1 } {
+      catchsql { DROP TABLE ft }
+    }
+    execsql COMMIT
+  } {}
+  
+  do_execsql_test 2.2 {
+    SELECT name FROM sqlite_master ORDER BY 1;
+  } {ft ft_content ft_segdir ft_segments sqlite_autoindex_ft_segdir_1 t1}
+  
+  db close
+  sqlite3 db test.db
+  
+  do_execsql_test 2.3 {
+    SELECT name FROM sqlite_master ORDER BY 1;
+  } {ft ft_content ft_segdir ft_segments sqlite_autoindex_ft_segdir_1 t1}
+}
+
+finish_test
diff --git a/test/vtabrhs1.test b/test/vtabrhs1.test
new file mode 100644
index 0000000000000000000000000000000000000000..0476a36f90ffdbcb4ae8d7d362f08750cb1af5fe
--- /dev/null
+++ b/test/vtabrhs1.test
@@ -0,0 +1,76 @@
+# 2022-01-20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+# This file implements tests for sqlite3_vtab_rhs_value() interface.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix vtabrhs1
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+load_static_extension db qpvtab
+
+# EVIDENCE-OF: R-60223-49197 When the sqlite3_vtab_rhs_value(P,J,V)
+# interface is invoked from within the xBestIndex method of a virtual
+# table implementation, with P being a copy of the sqlite3_index_info
+# object pointer passed into xBestIndex and J being a 0-based index into
+# P->aConstraint[], then this routine attempts to set *V to the value
+# of the right-hand operand of that constraint if the right-hand operand
+# is known.
+#
+do_execsql_test 1.1 {
+  SELECT rhs FROM qpvtab
+   WHERE cn='a'
+     AND a=12345
+} {12345}
+do_execsql_test 1.2 {
+  SELECT rhs FROM qpvtab
+   WHERE cn='a'
+     AND a<>4.5
+} {4.5}
+do_execsql_test 1.3 {
+  SELECT rhs FROM qpvtab
+   WHERE cn='a'
+     AND 'quokka' < a
+} {'quokka'}
+do_execsql_test 1.4 {
+  SELECT rhs FROM qpvtab
+   WHERE cn='a'
+     AND a IS NULL
+} {{}}
+do_execsql_test 1.5 {
+  SELECT rhs FROM qpvtab
+   WHERE cn='a'
+     AND a GLOB x'0123'
+} {x'0123'}
+
+# EVIDENCE-OF: R-37799-62852 If the right-hand operand is not known,
+# then *V is set to a NULL pointer.
+#
+do_execsql_test 2.1 {
+  SELECT typeof(rhs) FROM qpvtab WHERE cn='a' AND a=format('abc');
+} {null}
+do_execsql_test 2.2 {
+  SELECT typeof(rhs) FROM qpvtab WHERE cn='a' AND a=?2
+} {null}
+
+# EVIDENCE-OF: R-14553-25174 When xBestIndex returns, the sqlite3_value
+# object returned by sqlite3_vtab_rhs_value() is automatically
+# deallocated.
+#
+# Where this not the case, the following "finish_test" statement would
+# report a memory leak.
+#
+finish_test
diff --git a/test/wal.test b/test/wal.test
new file mode 100644
index 0000000000000000000000000000000000000000..50988debe3cae77f67ffc7a8e7fbee2b3c8fe363
--- /dev/null
+++ b/test/wal.test
@@ -0,0 +1,1550 @@
+# 2010 April 13
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the operation of the library in
+# "PRAGMA journal_mode=WAL" mode.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+source $testdir/malloc_common.tcl
+source $testdir/wal_common.tcl
+
+set testprefix wal
+
+ifcapable !wal {finish_test ; return }
+test_set_config_pagecache 0 0
+
+proc reopen_db {} {
+  catch { db close }
+  forcedelete test.db test.db-wal test.db-wal-summary
+  sqlite3_wal db test.db
+}
+
+set ::blobcnt 0
+proc blob {nByte} {
+  incr ::blobcnt
+  return [string range [string repeat "${::blobcnt}x" $nByte] 1 $nByte]
+}
+
+proc sqlite3_wal {args} {
+  eval sqlite3 $args
+  [lindex $args 0] eval { PRAGMA auto_vacuum = 0 }
+  [lindex $args 0] eval { PRAGMA page_size = 1024 }
+  [lindex $args 0] eval { PRAGMA journal_mode = wal }
+  [lindex $args 0] eval { PRAGMA synchronous = normal }
+  [lindex $args 0] function blob blob
+  db timeout 1000
+}
+
+proc log_deleted {logfile} {
+  return [expr [file exists $logfile]==0]
+}
+
+#
+# These are 'warm-body' tests used while developing the WAL code. They
+# serve to prove that a few really simple cases work:
+#
+# wal-1.*: Read and write the database.
+# wal-2.*: Test MVCC with one reader, one writer.
+# wal-3.*: Test transaction rollback.
+# wal-4.*: Test savepoint/statement rollback.
+# wal-5.*: Test the temp database.
+# wal-6.*: Test creating databases with different page sizes.
+#
+#
+#
+do_test wal-0.1 {
+  execsql { PRAGMA auto_vacuum = 0 }
+  execsql { PRAGMA synchronous = normal }
+  execsql { PRAGMA journal_mode = wal }
+} {wal}
+do_test wal-0.2 {
+  file size test.db
+} {1024}
+
+do_test wal-1.0 {
+  execsql { 
+    BEGIN;
+    CREATE TABLE t1(a, b); 
+  }
+  list [file exists test.db-journal] \
+       [file exists test.db-wal]     \
+       [file size test.db]
+} {0 1 1024}
+do_test wal-1.1 {
+  execsql COMMIT
+  list [file exists test.db-journal] [file exists test.db-wal]
+} {0 1}
+do_test wal-1.2 {
+  # There are now two pages in the log.
+  file size test.db-wal
+} [wal_file_size 2 1024]
+
+do_test wal-1.3 {
+  execsql { SELECT * FROM sqlite_master }
+} {table t1 t1 2 {CREATE TABLE t1(a, b)}}
+
+do_test wal-1.4 {
+  execsql { INSERT INTO t1 VALUES(1, 2) }
+  execsql { INSERT INTO t1 VALUES(3, 4) }
+  execsql { INSERT INTO t1 VALUES(5, 6) }
+  execsql { INSERT INTO t1 VALUES(7, 8) }
+  execsql { INSERT INTO t1 VALUES(9, 10) }
+} {}
+
+do_test wal-1.5 {
+  execsql { SELECT * FROM t1 }
+} {1 2 3 4 5 6 7 8 9 10}
+
+do_test wal-2.1 {
+  sqlite3_wal db2 ./test.db
+  execsql { BEGIN; SELECT * FROM t1 } db2
+} {1 2 3 4 5 6 7 8 9 10}
+
+do_test wal-2.2 {
+  execsql { INSERT INTO t1 VALUES(11, 12) }
+  execsql { SELECT * FROM t1 }
+} {1 2 3 4 5 6 7 8 9 10 11 12}
+
+do_test wal-2.3 {
+  execsql { SELECT * FROM t1 } db2
+} {1 2 3 4 5 6 7 8 9 10}
+
+do_test wal-2.4 {
+  execsql { INSERT INTO t1 VALUES(13, 14) }
+  execsql { SELECT * FROM t1 }
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14}
+
+do_test wal-2.5 {
+  execsql { SELECT * FROM t1 } db2
+} {1 2 3 4 5 6 7 8 9 10}
+
+do_test wal-2.6 {
+  execsql { COMMIT; SELECT * FROM t1 } db2
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14}
+
+do_test wal-3.1 {
+  execsql { BEGIN; DELETE FROM t1 }
+  execsql { SELECT * FROM t1 }
+} {}
+do_test wal-3.2 {
+  execsql { SELECT * FROM t1 } db2
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14}
+do_test wal-3.3 {
+  execsql { ROLLBACK }
+  execsql { SELECT * FROM t1 }
+} {1 2 3 4 5 6 7 8 9 10 11 12 13 14}
+db2 close
+
+#-------------------------------------------------------------------------
+# The following tests, wal-4.*, test that savepoints work with WAL 
+# databases.
+#
+do_test wal-4.1 {
+  execsql {
+    DELETE FROM t1;
+    BEGIN;
+      INSERT INTO t1 VALUES('a', 'b');
+      SAVEPOINT sp;
+        INSERT INTO t1 VALUES('c', 'd');
+        SELECT * FROM t1;
+  }
+} {a b c d}
+do_test wal-4.2 {
+  execsql {
+      ROLLBACK TO sp;
+      SELECT * FROM t1;
+  }
+} {a b}
+do_test wal-4.3 {
+  execsql {
+    COMMIT;
+    SELECT * FROM t1;
+  }
+} {a b}
+
+do_test wal-4.4.1 {
+  db close
+  sqlite3 db test.db
+  db func blob blob
+  list [execsql { SELECT * FROM t1 }] [file size test.db-wal]
+} {{a b} 0}
+do_test wal-4.4.2 {
+  execsql { PRAGMA cache_size = 10 }
+  execsql {
+    CREATE TABLE t2(a, b);
+    INSERT INTO t2 VALUES(blob(400), blob(400));
+    SAVEPOINT tr;
+      INSERT INTO t2 SELECT blob(400), blob(400) FROM t2; /*  2 */
+      INSERT INTO t2 SELECT blob(400), blob(400) FROM t2; /*  4 */
+      INSERT INTO t2 SELECT blob(400), blob(400) FROM t2; /*  8 */
+      INSERT INTO t2 SELECT blob(400), blob(400) FROM t2; /* 16 */
+      INSERT INTO t2 SELECT blob(400), blob(400) FROM t2; /* 32 */
+      INSERT INTO t1 SELECT blob(400), blob(400) FROM t1; /*  2 */
+      INSERT INTO t1 SELECT blob(400), blob(400) FROM t1; /*  4 */
+      INSERT INTO t1 SELECT blob(400), blob(400) FROM t1; /*  8 */
+      INSERT INTO t1 SELECT blob(400), blob(400) FROM t1; /* 16 */
+      INSERT INTO t1 SELECT blob(400), blob(400) FROM t1; /* 32 */
+      SELECT count(*) FROM t2;
+  }
+} {32}
+do_test wal-4.4.3 {
+  execsql { ROLLBACK TO tr }
+} {}
+do_test wal-4.4.4 {
+  set logsize [file size test.db-wal]
+  execsql {
+      INSERT INTO t1 VALUES('x', 'y');
+    RELEASE tr;
+  }
+  expr { $logsize == [file size test.db-wal] }
+} {1}
+do_test wal-4.4.5 {
+  execsql { SELECT count(*) FROM t2 }
+} {1}
+do_test wal-4.4.6 {
+  forcecopy test.db test2.db
+  forcecopy test.db-wal test2.db-wal
+  sqlite3 db2 test2.db
+  execsql { SELECT count(*) FROM t2 ; SELECT count(*) FROM t1 } db2
+} {1 2}
+do_test wal-4.4.7 {
+  execsql { PRAGMA integrity_check } db2
+} {ok}
+db2 close
+
+do_test wal-4.5.1 {
+  reopen_db
+  db func blob blob
+  execsql {
+    PRAGMA journal_mode = WAL;
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES('a', 'b');
+  }
+  sqlite3 db test.db
+  db func blob blob
+  list [execsql { SELECT * FROM t1 }] [file size test.db-wal]
+} {{a b} 0}
+do_test wal-4.5.2 {
+  execsql { PRAGMA cache_size = 10 }
+  execsql {
+    CREATE TABLE t2(a, b);
+    BEGIN;
+    INSERT INTO t2 VALUES(blob(400), blob(400));
+    SAVEPOINT tr;
+      INSERT INTO t2 SELECT blob(400), blob(400) FROM t2; /*  2 */
+      INSERT INTO t2 SELECT blob(400), blob(400) FROM t2; /*  4 */
+      INSERT INTO t2 SELECT blob(400), blob(400) FROM t2; /*  8 */
+      INSERT INTO t2 SELECT blob(400), blob(400) FROM t2; /* 16 */
+      INSERT INTO t2 SELECT blob(400), blob(400) FROM t2; /* 32 */
+      INSERT INTO t1 SELECT blob(400), blob(400) FROM t1; /*  2 */
+      INSERT INTO t1 SELECT blob(400), blob(400) FROM t1; /*  4 */
+      INSERT INTO t1 SELECT blob(400), blob(400) FROM t1; /*  8 */
+      INSERT INTO t1 SELECT blob(400), blob(400) FROM t1; /* 16 */
+      INSERT INTO t1 SELECT blob(400), blob(400) FROM t1; /* 32 */
+      SELECT count(*) FROM t2;
+  }
+} {32}
+do_test wal-4.5.3 {
+  execsql { ROLLBACK TO tr }
+} {}
+do_test wal-4.5.4 {
+  set logsize [file size test.db-wal]
+  execsql {
+      INSERT INTO t1 VALUES('x', 'y');
+    RELEASE tr;
+    COMMIT;
+  }
+  expr { $logsize == [file size test.db-wal] }
+} {1}
+do_test wal-4.5.5 {
+  execsql { SELECT count(*) FROM t2 ; SELECT count(*) FROM t1 }
+} {1 2}
+do_test wal-4.5.6 {
+  forcecopy test.db test2.db
+  forcecopy test.db-wal test2.db-wal
+  sqlite3 db2 test2.db
+  execsql { SELECT count(*) FROM t2 ; SELECT count(*) FROM t1 } db2
+} {1 2}
+do_test wal-4.5.7 {
+  execsql { PRAGMA integrity_check } db2
+} {ok}
+db2 close
+
+do_test wal-4.6.1 {
+  execsql {
+    DELETE FROM t2;
+    PRAGMA wal_checkpoint;
+    BEGIN;
+      INSERT INTO t2 VALUES('w', 'x');
+      SAVEPOINT save;
+        INSERT INTO t2 VALUES('y', 'z');
+      ROLLBACK TO save;
+    COMMIT;
+  }
+  execsql { SELECT * FROM t2 }
+} {w x}
+
+
+reopen_db
+do_test wal-5.1 {
+  execsql {
+    CREATE TEMP TABLE t2(a, b);
+    INSERT INTO t2 VALUES(1, 2);
+  }
+} {}
+do_test wal-5.2 {
+  execsql {
+    BEGIN;
+      INSERT INTO t2 VALUES(3, 4);
+      SELECT * FROM t2;
+  }
+} {1 2 3 4}
+do_test wal-5.3 {
+  execsql {
+    ROLLBACK;
+    SELECT * FROM t2;
+  }
+} {1 2}
+do_test wal-5.4 {
+  execsql {
+    CREATE TEMP TABLE t3(x UNIQUE);
+    BEGIN;
+      INSERT INTO t2 VALUES(3, 4);
+      INSERT INTO t3 VALUES('abc');
+  }
+  catchsql { INSERT INTO t3 VALUES('abc') }
+} {1 {UNIQUE constraint failed: t3.x}}
+do_test wal-5.5 {
+  execsql {
+    COMMIT;
+    SELECT * FROM t2;
+  }
+} {1 2 3 4}
+db close
+
+foreach sector {512 4096} {
+  sqlite3_simulate_device -sectorsize $sector
+  foreach pgsz {512 1024 2048 4096} {
+    forcedelete test.db test.db-wal
+    do_test wal-6.$sector.$pgsz.1 {
+      sqlite3 db test.db -vfs devsym
+      execsql "
+        PRAGMA page_size = $pgsz;
+        PRAGMA auto_vacuum = 0;
+        PRAGMA journal_mode = wal;
+      "
+      execsql "
+        CREATE TABLE t1(a, b);
+        INSERT INTO t1 VALUES(1, 2);
+      "
+      db close
+      file size test.db
+    } [expr $pgsz*2]
+  
+    do_test wal-6.$sector.$pgsz.2 {
+      log_deleted test.db-wal
+    } {1}
+  }
+}
+
+do_test wal-7.1 {
+  forcedelete test.db test.db-wal
+  sqlite3_wal db test.db
+  execsql {
+    PRAGMA page_size = 1024;
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, 2);
+  }
+  list [file size test.db] [file size test.db-wal]
+} [list 1024 [wal_file_size 3 1024]]
+do_test wal-7.2 {
+  execsql { PRAGMA wal_checkpoint }
+  list [file size test.db] [file size test.db-wal]
+} [list 2048 [wal_file_size 3 1024]]
+
+# Execute some transactions in auto-vacuum mode to test database file
+# truncation.
+#
+do_test wal-8.1 {
+  reopen_db
+  catch { db close }
+  forcedelete test.db test.db-wal
+
+  sqlite3 db test.db
+  db function blob blob
+  execsql {
+    PRAGMA auto_vacuum = 1;
+    PRAGMA journal_mode = wal;
+    PRAGMA auto_vacuum;
+  }
+} {wal 1}
+do_test wal-8.2 {
+  execsql {
+    PRAGMA page_size = 1024;
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(blob(900));
+    INSERT INTO t1 VALUES(blob(900));
+    INSERT INTO t1 SELECT blob(900) FROM t1;       /*  4 */
+    INSERT INTO t1 SELECT blob(900) FROM t1;       /*  8 */
+    INSERT INTO t1 SELECT blob(900) FROM t1;       /* 16 */
+    INSERT INTO t1 SELECT blob(900) FROM t1;       /* 32 */
+    INSERT INTO t1 SELECT blob(900) FROM t1;       /* 64 */
+    PRAGMA wal_checkpoint;
+  }
+  file size test.db
+} [expr 68*1024]
+do_test wal-8.3 {
+  execsql { 
+    DELETE FROM t1 WHERE rowid<54;
+    PRAGMA wal_checkpoint;
+  }
+  file size test.db
+} [expr 14*1024]
+
+# Run some "warm-body" tests to ensure that log-summary files with more
+# than 256 entries (log summaries that contain index blocks) work Ok.
+#
+do_test wal-9.1 {
+  reopen_db
+  execsql {
+    PRAGMA cache_size=2000;
+    CREATE TABLE t1(x PRIMARY KEY);
+    INSERT INTO t1 VALUES(blob(900));
+    INSERT INTO t1 VALUES(blob(900));
+    INSERT INTO t1 SELECT blob(900) FROM t1;       /*  4 */
+    INSERT INTO t1 SELECT blob(900) FROM t1;       /*  8 */
+    INSERT INTO t1 SELECT blob(900) FROM t1;       /* 16 */
+    INSERT INTO t1 SELECT blob(900) FROM t1;       /* 32 */
+    INSERT INTO t1 SELECT blob(900) FROM t1;       /* 64 */
+    INSERT INTO t1 SELECT blob(900) FROM t1;       /* 128 */
+    INSERT INTO t1 SELECT blob(900) FROM t1;       /* 256 */
+  }
+  file size test.db
+} 1024
+do_test wal-9.2 {
+  sqlite3_wal db2 test.db
+  execsql {PRAGMA integrity_check } db2
+} {ok}
+
+do_test wal-9.3 {
+  forcedelete test2.db test2.db-wal
+  copy_file test.db test2.db
+  copy_file test.db-wal test2.db-wal
+  sqlite3_wal db3 test2.db 
+  execsql {PRAGMA integrity_check } db3
+} {ok}
+db3 close
+
+do_test wal-9.4 {
+  execsql { PRAGMA wal_checkpoint }
+  db2 close
+  sqlite3_wal db2 test.db
+  execsql {PRAGMA integrity_check } db2
+} {ok}
+
+foreach handle {db db2 db3} { catch { $handle close } }
+unset handle
+
+#-------------------------------------------------------------------------
+# The following block of tests - wal-10.* - test that the WAL locking 
+# scheme works in simple cases. This block of tests is run twice. Once
+# using multiple connections in the address space of the current process,
+# and once with all connections except one running in external processes.
+#
+do_multiclient_test tn {
+
+  # Initialize the database schema and contents.
+  #
+  do_test wal-10.$tn.1 {
+    execsql {
+      PRAGMA auto_vacuum = 0;
+      PRAGMA journal_mode = wal;
+      CREATE TABLE t1(a, b);
+      INSERT INTO t1 VALUES(1, 2);
+      SELECT * FROM t1;
+    }
+  } {wal 1 2}
+
+  # Open a transaction and write to the database using [db]. Check that [db2]
+  # is still able to read the snapshot before the transaction was opened.
+  #
+  do_test wal-10.$tn.2 {
+    execsql { BEGIN; INSERT INTO t1 VALUES(3, 4); }
+    sql2 {SELECT * FROM t1}
+  } {1 2}
+
+  # Have [db] commit the transaction. Check that [db2] is now seeing the 
+  # new, updated snapshot.
+  #
+  do_test wal-10.$tn.3 {
+    execsql { COMMIT }
+    sql2 {SELECT * FROM t1}
+  } {1 2 3 4}
+
+  # Have [db2] open a read transaction. Then write to the db via [db]. Check
+  # that [db2] is still seeing the original snapshot. Then read with [db3].
+  # [db3] should see the newly committed data.
+  #
+  do_test wal-10.$tn.4 {
+    sql2 { BEGIN ; SELECT * FROM t1}
+  } {1 2 3 4}
+  do_test wal-10.$tn.5 {
+    execsql { INSERT INTO t1 VALUES(5, 6); }
+    sql2 {SELECT * FROM t1}
+  } {1 2 3 4}
+  do_test wal-10.$tn.6 {
+    sql3 {SELECT * FROM t1}
+  } {1 2 3 4 5 6}
+  do_test wal-10.$tn.7 {
+    sql2 COMMIT
+  } {}
+
+  # Have [db2] open a write transaction. Then attempt to write to the 
+  # database via [db]. This should fail (writer lock cannot be obtained).
+  #
+  # Then open a read-transaction with [db]. Commit the [db2] transaction
+  # to disk. Verify that [db] still cannot write to the database (because
+  # it is reading an old snapshot).
+  #
+  # Close the current [db] transaction. Open a new one. [db] can now write
+  # to the database (as it is not locked and [db] is reading the latest
+  # snapshot).
+  #
+  do_test wal-10.$tn.7 {
+    sql2 { BEGIN; INSERT INTO t1 VALUES(7, 8) ; }
+    catchsql { INSERT INTO t1 VALUES(9, 10) }
+  } {1 {database is locked}}
+  do_test wal-10.$tn.8 {
+    execsql { BEGIN ; SELECT * FROM t1 }
+  } {1 2 3 4 5 6}
+  do_test wal-10.$tn.9 {
+    sql2 COMMIT
+    catchsql { INSERT INTO t1 VALUES(9, 10) }
+  } {1 {database is locked}}
+  do_test wal-10.$tn.10 {
+    execsql { COMMIT }
+    execsql { BEGIN }
+    execsql { INSERT INTO t1 VALUES(9, 10) }
+    execsql { COMMIT }
+    execsql { SELECT * FROM t1 }
+  } {1 2 3 4 5 6 7 8 9 10}
+
+  # Open a read transaction with [db2]. Check that this prevents [db] from
+  # checkpointing the database. But not from writing to it.
+  #
+  do_test wal-10.$tn.11 {
+    sql2 { BEGIN; SELECT * FROM t1 }
+  } {1 2 3 4 5 6 7 8 9 10}
+  do_test wal-10.$tn.12 {
+    catchsql { PRAGMA wal_checkpoint } 
+  } {0 {0 7 7}}   ;# Reader no longer block checkpoints
+  do_test wal-10.$tn.13 {
+    execsql { INSERT INTO t1 VALUES(11, 12) }
+    sql2 {SELECT * FROM t1}
+  } {1 2 3 4 5 6 7 8 9 10}
+
+  # Writers do not block checkpoints any more either.
+  #
+  do_test wal-10.$tn.14 {
+    catchsql { PRAGMA wal_checkpoint } 
+  } {0 {0 8 7}}
+
+  # The following series of test cases used to verify another blocking
+  # case in WAL - a case which no longer blocks.
+  #
+  do_test wal-10.$tn.15 {
+    sql2 { COMMIT; BEGIN; SELECT * FROM t1; }
+  } {1 2 3 4 5 6 7 8 9 10 11 12}
+  do_test wal-10.$tn.16 {
+    catchsql { PRAGMA wal_checkpoint } 
+  } {0 {0 8 8}}
+  do_test wal-10.$tn.17 {
+    execsql { PRAGMA wal_checkpoint } 
+  } {0 8 8}
+  do_test wal-10.$tn.18 {
+    sql3 { BEGIN; SELECT * FROM t1 }
+  } {1 2 3 4 5 6 7 8 9 10 11 12}
+  do_test wal-10.$tn.19 {
+    catchsql { INSERT INTO t1 VALUES(13, 14) }
+  } {0 {}}
+  do_test wal-10.$tn.20 {
+    execsql { SELECT * FROM t1 }
+  } {1 2 3 4 5 6 7 8 9 10 11 12 13 14}
+  do_test wal-10.$tn.21 {
+    sql3 COMMIT
+    sql2 COMMIT
+  } {}
+  do_test wal-10.$tn.22 {
+    execsql { SELECT * FROM t1 }
+  } {1 2 3 4 5 6 7 8 9 10 11 12 13 14}
+
+  # Another series of tests that used to demonstrate blocking behavior
+  # but which now work.
+  #
+  do_test wal-10.$tn.23 {
+    execsql { PRAGMA wal_checkpoint }
+  } {0 9 9}
+  do_test wal-10.$tn.24 {
+    sql2 { BEGIN; SELECT * FROM t1; }
+  } {1 2 3 4 5 6 7 8 9 10 11 12 13 14}
+  do_test wal-10.$tn.25 {
+    execsql { PRAGMA wal_checkpoint }
+  } {0 9 9}
+  do_test wal-10.$tn.26 {
+    catchsql { INSERT INTO t1 VALUES(15, 16) }
+  } {0 {}}
+  do_test wal-10.$tn.27 {
+    sql3 { INSERT INTO t1 VALUES(17, 18) }
+  } {}
+  do_test wal-10.$tn.28 {
+    code3 {
+      set ::STMT [sqlite3_prepare db3 "SELECT * FROM t1" -1 TAIL]
+      sqlite3_step $::STMT
+    }
+    execsql { SELECT * FROM t1 }
+  } {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18}
+  do_test wal-10.$tn.29 {
+    execsql { INSERT INTO t1 VALUES(19, 20) }
+    catchsql { PRAGMA wal_checkpoint }
+  } {0 {0 3 0}}
+  do_test wal-10.$tn.30 {
+    code3 { sqlite3_finalize $::STMT }
+    execsql { PRAGMA wal_checkpoint }
+  } {0 3 0}
+
+  # At one point, if a reader failed to upgrade to a writer because it
+  # was reading an old snapshot, the write-locks were not being released.
+  # Test that this bug has been fixed.
+  #
+  do_test wal-10.$tn.31 {
+    sql2 COMMIT
+    execsql { BEGIN ; SELECT * FROM t1 }
+    sql2 { INSERT INTO t1 VALUES(21, 22) }
+    catchsql { INSERT INTO t1 VALUES(23, 24) }
+  } {1 {database is locked}}
+  do_test wal-10.$tn.32 {
+    # This statement would fail when the bug was present.
+    sql2 { INSERT INTO t1 VALUES(23, 24) }
+  } {}
+  do_test wal-10.$tn.33 {
+    execsql { SELECT * FROM t1 ; COMMIT }
+  } {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20}
+  do_test wal-10.$tn.34 {
+    execsql { SELECT * FROM t1 }
+  } {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24}
+
+  # Test that if a checkpointer cannot obtain the required locks, it
+  # releases all locks before returning a busy error.
+  #
+  do_test wal-10.$tn.35 {
+    execsql { 
+      DELETE FROM t1;
+      INSERT INTO t1 VALUES('a', 'b');
+      INSERT INTO t1 VALUES('c', 'd');
+    }
+    sql2 {
+      BEGIN;
+        SELECT * FROM t1;
+    }
+  } {a b c d}
+  do_test wal-10.$tn.36 {
+    catchsql { PRAGMA wal_checkpoint }
+  } {0 {0 8 8}}
+  do_test wal-10.$tn.36 {
+    sql3 { INSERT INTO t1 VALUES('e', 'f') }
+    sql2 { SELECT * FROM t1 }
+  } {a b c d}
+  do_test wal-10.$tn.37 {
+    sql2 COMMIT
+    execsql { PRAGMA wal_checkpoint }
+  } {0 9 9}
+}
+
+#-------------------------------------------------------------------------
+# This block of tests, wal-11.*, test that nothing goes terribly wrong
+# if frames must be written to the log file before a transaction is
+# committed (in order to free up memory).
+#
+do_test wal-11.1 {
+  reopen_db
+  execsql {
+    PRAGMA cache_size = 10;
+    PRAGMA page_size = 1024;
+    CREATE TABLE t1(x PRIMARY KEY);
+  }
+  list [expr [file size test.db]/1024] [expr [file size test.db-wal]/1044]
+} {1 3}
+do_test wal-11.2 {
+  execsql { PRAGMA wal_checkpoint }
+  list [expr [file size test.db]/1024] [file size test.db-wal]
+} [list 3 [wal_file_size 3 1024]]
+do_test wal-11.3 {
+  execsql { INSERT INTO t1 VALUES( blob(900) ) }
+  list [expr [file size test.db]/1024] [file size test.db-wal]
+} [list 3 [wal_file_size 4 1024]]
+
+do_test wal-11.4 {
+  execsql { 
+    BEGIN;
+      INSERT INTO t1 SELECT blob(900) FROM t1;   -- 2
+      INSERT INTO t1 SELECT blob(900) FROM t1;   -- 4
+      INSERT INTO t1 SELECT blob(900) FROM t1;   -- 8
+      INSERT INTO t1 SELECT blob(900) FROM t1;   -- 16
+  }
+  list [expr [file size test.db]/1024] [file size test.db-wal]
+} [list 3 [wal_file_size 32 1024]]
+do_test wal-11.5 {
+  execsql { 
+    SELECT count(*) FROM t1;
+    PRAGMA integrity_check;
+  }
+} {16 ok}
+do_test wal-11.6 {
+  execsql COMMIT
+  list [expr [file size test.db]/1024] [file size test.db-wal]
+} [list 3 [wal_file_size 40 1024]]
+do_test wal-11.7 {
+  execsql { 
+    SELECT count(*) FROM t1;
+    PRAGMA integrity_check;
+  }
+} {16 ok}
+do_test wal-11.8 {
+  execsql { PRAGMA wal_checkpoint }
+  list [expr [file size test.db]/1024] [file size test.db-wal]
+} [list 37 [wal_file_size 40 1024]]
+do_test wal-11.9 {
+  db close
+  list [expr [file size test.db]/1024] [log_deleted test.db-wal]
+} {37 1}
+sqlite3_wal db test.db
+
+# After adding the capability of WAL to overwrite prior uncommitted
+# frame in the WAL-file with revised content, the size of the WAL file
+# following cache-spill is smaller.
+#
+#set nWal 39
+#if {[permutation]!="mmap"} {set nWal 37}
+#ifcapable !mmap {set nWal 37}
+set nWal 34
+
+do_test wal-11.10 {
+  execsql {
+    PRAGMA cache_size = 10;
+    BEGIN;
+      INSERT INTO t1 SELECT blob(900) FROM t1;   -- 32
+      SELECT count(*) FROM t1;
+  }
+  list [expr [file size test.db]/1024] [file size test.db-wal]
+} [list 37 [wal_file_size $nWal 1024]]
+do_test wal-11.11 {
+  execsql {
+      SELECT count(*) FROM t1;
+    ROLLBACK;
+    SELECT count(*) FROM t1;
+  }
+} {32 16}
+do_test wal-11.12 {
+  list [expr [file size test.db]/1024] [file size test.db-wal]
+} [list 37 [wal_file_size $nWal 1024]]
+do_test wal-11.13 {
+  execsql {
+    INSERT INTO t1 VALUES( blob(900) );
+    SELECT count(*) FROM t1;
+    PRAGMA integrity_check;
+  }
+} {17 ok}
+do_test wal-11.14 {
+  list [expr [file size test.db]/1024] [file size test.db-wal]
+} [list 37 [wal_file_size $nWal 1024]]
+
+
+#-------------------------------------------------------------------------
+# This block of tests, wal-12.*, tests the fix for a problem that 
+# could occur if a log that is a prefix of an older log is written 
+# into a reused log file.
+#
+reopen_db
+do_test wal-12.1 {
+  execsql {
+    PRAGMA page_size = 1024;
+    CREATE TABLE t1(x, y);
+    CREATE TABLE t2(x, y);
+    INSERT INTO t1 VALUES('A', 1);
+  }
+  list [expr [file size test.db]/1024] [file size test.db-wal]
+} [list 1 [wal_file_size 5 1024]]
+do_test wal-12.2 {
+  db close
+  sqlite3 db test.db
+  execsql {
+    PRAGMA synchronous = normal;
+    UPDATE t1 SET y = 0 WHERE x = 'A';
+  }
+  list [expr [file size test.db]/1024] [expr [file size test.db-wal]/1044]
+} {3 1}
+do_test wal-12.3 {
+  execsql { INSERT INTO t2 VALUES('B', 1) }
+  list [expr [file size test.db]/1024] [expr [file size test.db-wal]/1044]
+} {3 2}
+do_test wal-12.4 {
+  forcecopy test.db test2.db
+  forcecopy test.db-wal test2.db-wal
+  sqlite3_wal db2 test2.db
+  execsql { SELECT * FROM t2 } db2
+} {B 1}
+db2 close
+do_test wal-12.5 {
+  execsql {
+    PRAGMA wal_checkpoint;
+    UPDATE t2 SET y = 2 WHERE x = 'B'; 
+    PRAGMA wal_checkpoint;
+    UPDATE t1 SET y = 1 WHERE x = 'A';
+    PRAGMA wal_checkpoint;
+    UPDATE t1 SET y = 0 WHERE x = 'A';
+  }
+  execsql {  SELECT * FROM t2 }
+} {B 2}
+do_test wal-12.6 {
+  forcecopy test.db test2.db
+  forcecopy test.db-wal test2.db-wal
+  sqlite3_wal db2 test2.db
+  execsql { SELECT * FROM t2 } db2
+} {B 2}
+db2 close
+db close
+
+#-------------------------------------------------------------------------
+# Check a fun corruption case has been fixed.
+#
+# The problem was that after performing a checkpoint using a connection
+# that had an out-of-date pager-cache, the next time the connection was
+# used it did not realize the cache was out-of-date and proceeded to
+# operate with an inconsistent cache. Leading to corruption.
+#
+catch { db close }
+catch { db2 close }
+catch { db3 close }
+forcedelete test.db test.db-wal
+sqlite3 db test.db
+sqlite3 db2 test.db
+do_test wal-14 {
+  execsql {
+    PRAGMA journal_mode = WAL;
+    CREATE TABLE t1(a PRIMARY KEY, b);
+    INSERT INTO t1 VALUES(randomblob(10), randomblob(100));
+    INSERT INTO t1 SELECT randomblob(10), randomblob(100) FROM t1;
+    INSERT INTO t1 SELECT randomblob(10), randomblob(100) FROM t1;
+    INSERT INTO t1 SELECT randomblob(10), randomblob(100) FROM t1;
+  }
+
+  db2 eval { 
+    INSERT INTO t1 SELECT randomblob(10), randomblob(100);
+    INSERT INTO t1 SELECT randomblob(10), randomblob(100);
+    INSERT INTO t1 SELECT randomblob(10), randomblob(100);
+    INSERT INTO t1 SELECT randomblob(10), randomblob(100);
+  }
+
+  # After executing the "PRAGMA wal_checkpoint", connection [db] was being
+  # left with an inconsistent cache. Running the CREATE INDEX statement
+  # in this state led to database corruption.
+  catchsql { 
+    PRAGMA wal_checkpoint;
+    CREATE INDEX i1 on t1(b);
+  }
+   
+  db2 eval { PRAGMA integrity_check }
+} {ok}
+
+catch { db close }
+catch { db2 close }
+
+#-------------------------------------------------------------------------
+# The following block of tests - wal-15.* - focus on testing the 
+# implementation of the sqlite3_wal_checkpoint() interface.
+#
+forcedelete test.db test.db-wal
+sqlite3 db test.db
+do_test wal-15.1 {
+  execsql {
+    PRAGMA auto_vacuum = 0;
+    PRAGMA page_size = 1024;
+    PRAGMA journal_mode = WAL;
+  }
+  execsql {
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, 2);
+  }
+} {}
+
+# Test that an error is returned if the database name is not recognized
+#
+do_test wal-15.2.1 {
+  sqlite3_wal_checkpoint db aux
+} {SQLITE_ERROR}
+do_test wal-15.2.2 {
+  sqlite3_errcode db
+} {SQLITE_ERROR}
+do_test wal-15.2.3 {
+  sqlite3_errmsg db
+} {unknown database: aux}
+
+# Test that an error is returned if an attempt is made to checkpoint
+# if a transaction is open on the database.
+#
+do_test wal-15.3.1 {
+  execsql {
+    BEGIN;
+    INSERT INTO t1 VALUES(3, 4);
+  }
+  sqlite3_wal_checkpoint db main
+} {SQLITE_LOCKED}
+do_test wal-15.3.2 {
+  sqlite3_errcode db
+} {SQLITE_LOCKED}
+do_test wal-15.3.3 {
+  sqlite3_errmsg db
+} {database table is locked}
+
+# Earlier versions returned an error is returned if the db cannot be 
+# checkpointed because of locks held by another connection. Check that
+# this is no longer the case.
+#
+sqlite3 db2 test.db
+do_test wal-15.4.1 {
+  execsql {
+    BEGIN;
+    SELECT * FROM t1;
+  } db2
+} {1 2}
+do_test wal-15.4.2 {
+  execsql { COMMIT }
+  sqlite3_wal_checkpoint db
+} {SQLITE_OK}
+do_test wal-15.4.3 {
+  sqlite3_errmsg db
+} {not an error}
+
+# After [db2] drops its lock, [db] may checkpoint the db.
+#
+do_test wal-15.4.4 {
+  execsql { COMMIT } db2
+  sqlite3_wal_checkpoint db
+} {SQLITE_OK}
+do_test wal-15.4.5 {
+  sqlite3_errmsg db
+} {not an error}
+do_test wal-15.4.6 {
+  file size test.db
+} [expr 1024*2]
+
+catch { db2 close }
+catch { db close }
+
+#-------------------------------------------------------------------------
+# The following block of tests - wal-16.* - test that if a NULL pointer or
+# an empty string is passed as the second argument of the wal_checkpoint()
+# API, an attempt is made to checkpoint all attached databases.
+#
+foreach {tn ckpt_cmd ckpt_res ckpt_main ckpt_aux} {
+  1 {sqlite3_wal_checkpoint db}              SQLITE_OK     1 1
+  2 {sqlite3_wal_checkpoint db ""}           SQLITE_OK     1 1
+  3 {db eval "PRAGMA wal_checkpoint"}        {0 10 10}     1 1
+
+  4 {sqlite3_wal_checkpoint db main}         SQLITE_OK     1 0
+  5 {sqlite3_wal_checkpoint db aux}          SQLITE_OK     0 1
+  6 {sqlite3_wal_checkpoint db temp}         SQLITE_OK     0 0
+  7 {db eval "PRAGMA main.wal_checkpoint"}   {0 10 10}     1 0
+  8 {db eval "PRAGMA aux.wal_checkpoint"}    {0 13 13}     0 1
+  9 {db eval "PRAGMA temp.wal_checkpoint"}   {0 -1 -1}     0 0
+} {
+  do_test wal-16.$tn.1 {
+    forcedelete test2.db test2.db-wal test2.db-journal
+    forcedelete test.db test.db-wal test.db-journal
+
+    sqlite3 db test.db
+    execsql {
+      ATTACH 'test2.db' AS aux;
+      PRAGMA main.auto_vacuum = 0;
+      PRAGMA aux.auto_vacuum = 0;
+      PRAGMA main.journal_mode = WAL;
+      PRAGMA aux.journal_mode = WAL;
+      PRAGMA main.synchronous = NORMAL;
+      PRAGMA aux.synchronous = NORMAL;
+    }
+  } {wal wal}
+
+  do_test wal-16.$tn.2 {
+    execsql {
+      CREATE TABLE main.t1(a, b, PRIMARY KEY(a, b));
+      CREATE TABLE aux.t2(a, b, PRIMARY KEY(a, b));
+
+      INSERT INTO t2 VALUES(1, randomblob(1000));
+      INSERT INTO t2 VALUES(2, randomblob(1000));
+      INSERT INTO t1 SELECT * FROM t2;
+    }
+  
+    list [file size test.db] [file size test.db-wal]
+  } [list [expr 1*1024] [wal_file_size 10 1024]]
+  do_test wal-16.$tn.3 {
+    list [file size test2.db] [file size test2.db-wal]
+  } [list [expr 1*1024] [wal_file_size 13 1024]]
+  
+  do_test wal-16.$tn.4 [list eval $ckpt_cmd] $ckpt_res
+  
+  do_test wal-16.$tn.5 {
+    list [file size test.db] [file size test.db-wal]
+  } [list [expr ($ckpt_main ? 7 : 1)*1024] [wal_file_size 10 1024]]
+
+  do_test wal-16.$tn.6 {
+    list [file size test2.db] [file size test2.db-wal]
+  } [list [expr ($ckpt_aux ? 7 : 1)*1024] [wal_file_size 13 1024]]
+
+  catch { db close }
+}
+
+#-------------------------------------------------------------------------
+# The following tests - wal-17.* - attempt to verify that the correct
+# number of "padding" frames are appended to the log file when a transaction
+# is committed in synchronous=FULL mode.
+# 
+# Do this by creating a database that uses 512 byte pages. Then writing
+# a transaction that modifies 171 pages. In synchronous=NORMAL mode, this
+# produces a log file of:
+#
+#   32 + (24+512)*171 = 90312 bytes.
+#
+# Slightly larger than 11*8192 = 90112 bytes.
+#
+# Run the test using various different sector-sizes. In each case, the
+# WAL code should write the 90300 bytes of log file containing the 
+# transaction, then append as may frames as are required to extend the
+# log file so that no part of the next transaction will be written into
+# a disk-sector used by transaction just committed.
+#
+set old_pending_byte [sqlite3_test_control_pending_byte 0x10000000]
+catch { db close }
+foreach {tn sectorsize logsize} "
+  1   128  [wal_file_size 172 512]
+  2   256  [wal_file_size 172 512]
+  3   512  [wal_file_size 172 512] 
+  4  1024  [wal_file_size 172 512]
+  5  2048  [wal_file_size 172 512]
+  6  4096  [wal_file_size 176 512]
+  7  8192  [wal_file_size 184 512]
+" {
+  forcedelete test.db test.db-wal test.db-journal
+  sqlite3_simulate_device -sectorsize $sectorsize
+  sqlite3 db test.db -vfs devsym
+
+  do_test wal-17.$tn.1 {
+    execsql {
+      PRAGMA auto_vacuum = 0;
+      PRAGMA page_size = 512;
+      PRAGMA cache_size = -2000;
+      PRAGMA journal_mode = WAL;
+      PRAGMA synchronous = FULL;
+    }
+    execsql {
+      BEGIN;
+      CREATE TABLE t(x);
+    }
+    for {set i 0} {$i<166} {incr i} {
+      execsql { INSERT INTO t VALUES(randomblob(400)) }
+    }
+    execsql COMMIT
+
+    file size test.db-wal
+  } $logsize
+
+  do_test wal-17.$tn.2 {
+    file size test.db
+  } 512
+
+  do_test wal-17.$tn.3 {
+    db close
+    file size test.db
+  } [expr 512*171]
+}
+sqlite3_test_control_pending_byte $old_pending_byte
+
+#-------------------------------------------------------------------------
+# This test - wal-18.* - verifies a couple of specific conditions that
+# may be encountered while recovering a log file are handled correctly:
+#
+#   wal-18.1.* When the first 32-bits of a frame checksum is correct but 
+#              the second 32-bits are false, and
+#
+#   wal-18.2.* When the page-size field that occurs at the start of a log
+#              file is a power of 2 greater than 16384 or smaller than 512.
+#
+forcedelete test.db test.db-wal test.db-journal
+do_test wal-18.0 {
+  sqlite3 db test.db
+  execsql {
+    PRAGMA page_size = 1024;
+    PRAGMA auto_vacuum = 0;
+    PRAGMA journal_mode = WAL;
+    PRAGMA synchronous = OFF;
+
+    CREATE TABLE t1(a, b, UNIQUE(a, b));
+    INSERT INTO t1 VALUES(0, 0);
+    PRAGMA wal_checkpoint;
+
+    INSERT INTO t1 VALUES(1, 2);          -- frames 1 and 2
+    INSERT INTO t1 VALUES(3, 4);          -- frames 3 and 4
+    INSERT INTO t1 VALUES(5, 6);          -- frames 5 and 6
+  }
+
+  forcecopy test.db testX.db
+  forcecopy test.db-wal testX.db-wal
+  db close
+  list [file size testX.db] [file size testX.db-wal]
+} [list [expr 3*1024] [wal_file_size 6 1024]]
+
+unset -nocomplain nFrame result
+foreach {nFrame result} {
+         0      {0 0}
+         1      {0 0}
+         2      {0 0 1 2}
+         3      {0 0 1 2}
+         4      {0 0 1 2 3 4}
+         5      {0 0 1 2 3 4}
+         6      {0 0 1 2 3 4 5 6}
+} {
+  do_test wal-18.1.$nFrame {
+    forcecopy testX.db test.db
+    forcecopy testX.db-wal test.db-wal
+
+    hexio_write test.db-wal [expr 24 + $nFrame*(24+1024) + 20] 00000000
+
+    sqlite3 db test.db
+    execsql { 
+      SELECT * FROM t1;
+      PRAGMA integrity_check; 
+    }
+  } [concat $result ok]
+  db close
+} 
+
+proc randomblob {pgsz} {
+  sqlite3 rbdb :memory:
+  set blob [rbdb one {SELECT randomblob($pgsz)}]
+  rbdb close
+  set blob
+}
+
+proc logcksum {ckv1 ckv2 blob} {
+  upvar $ckv1 c1
+  upvar $ckv2 c2
+
+  # Since the magic number at the start of the -wal file header is
+  # 931071618 that indicates that the content should always be read as
+  # little-endian.
+  # 
+  set scanpattern i*
+
+  binary scan $blob $scanpattern values
+  foreach {v1 v2} $values {
+    set c1 [expr {($c1 + $v1 + $c2)&0xFFFFFFFF}]
+    set c2 [expr {($c2 + $v2 + $c1)&0xFFFFFFFF}]
+  }
+}
+
+forcecopy test.db testX.db
+foreach {tn pgsz works} { 
+  1    128    0
+  2    256    0
+  3    512    1
+  4   1024    1
+  5   2048    1
+  6   4096    1
+  7   8192    1
+  8  16384    1
+  9  32768    1
+ 10  65536    1
+ 11 131072    0
+ 11   1016    0
+} {
+
+  if {$::SQLITE_MAX_PAGE_SIZE < $pgsz} {
+    set works 0
+  }
+
+  for {set pg 1} {$pg <= 3} {incr pg} {
+    forcecopy testX.db test.db
+    forcedelete test.db-wal
+  
+    # Check that the database now exists and consists of three pages. And
+    # that there is no associated wal file.
+    #
+    do_test wal-18.2.$tn.$pg.1 { file exists test.db-wal } 0
+    do_test wal-18.2.$tn.$pg.2 { file exists test.db } 1
+    do_test wal-18.2.$tn.$pg.3 { file size test.db } [expr 1024*3]
+  
+    do_test wal-18.2.$tn.$pg.4 {
+
+      # Create a wal file that contains a single frame (database page
+      # number $pg) with the commit flag set. The frame checksum is
+      # correct, but the contents of the database page are corrupt.
+      #
+      # The page-size in the log file header is set to $pgsz. If the
+      # WAL code considers $pgsz to be a valid SQLite database file page-size,
+      # the database will be corrupt (because the garbage frame contents
+      # will be treated as valid content). If $pgsz is invalid (too small
+      # or too large), the db will not be corrupt as the log file will
+      # be ignored.
+      #
+      set walhdr [binary format IIIIII 931071618 3007000 $pgsz 1234 22 23]
+      set framebody [randomblob $pgsz]
+      set framehdr  [binary format IIII $pg 5 22 23]
+      set c1 0
+      set c2 0
+      logcksum c1 c2 $walhdr
+
+      append walhdr [binary format II $c1 $c2]
+      logcksum c1 c2 [string range $framehdr 0 7]
+      logcksum c1 c2 $framebody
+      set framehdr [binary format IIIIII $pg 5 22 23 $c1 $c2]
+
+      set fd [open test.db-wal w]
+      fconfigure $fd -translation binary
+      puts -nonewline $fd $walhdr
+      puts -nonewline $fd $framehdr
+      puts -nonewline $fd $framebody
+      close $fd
+  
+      file size test.db-wal
+    } [wal_file_size 1 $pgsz]
+  
+    do_test wal-18.2.$tn.$pg.5 {
+      sqlite3 db test.db
+      set rc [catch { db one {PRAGMA integrity_check} } msg]
+      expr { $rc!=0 || $msg!="ok" }
+    } $works
+  
+    db close
+  }
+}
+
+#-------------------------------------------------------------------------
+# The following test - wal-19.* - fixes a bug that was present during
+# development.
+#
+# When a database connection in WAL mode is closed, it attempts an
+# EXCLUSIVE lock on the database file. If the lock is obtained, the
+# connection knows that it is the last connection to disconnect from
+# the database, so it runs a checkpoint operation. The bug was that
+# the connection was not updating its private copy of the wal-index 
+# header before doing so, meaning that it could checkpoint an old
+# snapshot.
+#
+do_test wal-19.1 {
+  forcedelete test.db test.db-wal test.db-journal
+  sqlite3 db test.db
+  sqlite3 db2 test.db
+  execsql {
+    PRAGMA journal_mode = WAL;
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, 2);
+    INSERT INTO t1 VALUES(3, 4);
+  }
+  execsql { SELECT * FROM t1 } db2
+} {1 2 3 4}
+do_test wal-19.2 {
+  execsql {
+    INSERT INTO t1 VALUES(5, 6);
+    SELECT * FROM t1;
+  }
+} {1 2 3 4 5 6}
+do_test wal-19.3 {
+  db close
+  db2 close
+  file exists test.db-wal
+} {0}
+do_test wal-19.4 {
+  # When the bug was present, the following was returning {1 2 3 4} only,
+  # as [db2] had an out-of-date copy of the wal-index header when it was
+  # closed.
+  #
+  sqlite3 db test.db
+  execsql { SELECT * FROM t1 }
+} {1 2 3 4 5 6}
+
+#-------------------------------------------------------------------------
+# This test - wal-20.* - uses two connections. One in this process and
+# the other in an external process. The procedure is:
+#
+#   1. Using connection 1, create the database schema.
+#
+#   2. Using connection 2 (in an external process), add so much
+#      data to the database without checkpointing that a wal-index 
+#      larger than 64KB is required.
+#
+#   3. Using connection 1, checkpoint the database. Make sure all
+#      the data is present and the database is not corrupt.
+#
+# At one point, SQLite was failing to grow the mapping of the wal-index
+# file in step 3 and the checkpoint was corrupting the database file.
+#
+if {[permutation]!="unix-excl"} {
+  do_test wal-20.1 {
+    catch {db close}
+    forcedelete test.db test.db-wal test.db-journal
+    sqlite3 db test.db
+    execsql {
+      PRAGMA journal_mode = WAL;
+      CREATE TABLE t1(x);
+      INSERT INTO t1 VALUES(randomblob(900));
+      SELECT count(*) FROM t1;
+    }
+  } {wal 1}
+  do_test wal-20.2 {
+    set ::buddy [launch_testfixture]
+    testfixture $::buddy {
+      sqlite3 db test.db
+      db transaction { db eval {
+        PRAGMA wal_autocheckpoint = 0;
+        INSERT INTO t1 SELECT randomblob(900) FROM t1;       /* 2 */
+        INSERT INTO t1 SELECT randomblob(900) FROM t1;       /* 4 */
+        INSERT INTO t1 SELECT randomblob(900) FROM t1;       /* 8 */
+        INSERT INTO t1 SELECT randomblob(900) FROM t1;       /* 16 */
+        INSERT INTO t1 SELECT randomblob(900) FROM t1;       /* 32 */
+        INSERT INTO t1 SELECT randomblob(900) FROM t1;       /* 64 */
+        INSERT INTO t1 SELECT randomblob(900) FROM t1;       /* 128 */
+        INSERT INTO t1 SELECT randomblob(900) FROM t1;       /* 256 */
+        INSERT INTO t1 SELECT randomblob(900) FROM t1;       /* 512 */
+        INSERT INTO t1 SELECT randomblob(900) FROM t1;       /* 1024 */
+        INSERT INTO t1 SELECT randomblob(900) FROM t1;       /* 2048 */
+        INSERT INTO t1 SELECT randomblob(900) FROM t1;       /* 4096 */
+        INSERT INTO t1 SELECT randomblob(900) FROM t1;       /* 8192 */
+        INSERT INTO t1 SELECT randomblob(900) FROM t1;       /* 16384 */
+      } }
+    }
+  } {0}
+  do_test wal-20.3 {
+    close $::buddy
+    execsql { PRAGMA wal_checkpoint }
+    execsql { SELECT count(*) FROM t1 }
+  } {16384}
+  do_test wal-20.4 {
+    db close
+    sqlite3 db test.db
+    execsql { SELECT count(*) FROM t1 }
+  } {16384}
+  integrity_check wal-20.5
+}
+
+catch { db2 close }
+catch { db close }
+
+do_test wal-21.1 {
+  faultsim_delete_and_reopen
+  execsql { 
+    PRAGMA journal_mode = WAL;
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, 2);
+    INSERT INTO t1 VALUES(3, 4);
+    INSERT INTO t1 VALUES(5, 6);
+    INSERT INTO t1 VALUES(7, 8);
+    INSERT INTO t1 VALUES(9, 10);
+    INSERT INTO t1 VALUES(11, 12);
+  }
+} {wal}
+do_test wal-21.2 {
+  execsql { 
+    PRAGMA cache_size = 10;
+    PRAGMA wal_checkpoint;
+    BEGIN;
+      SAVEPOINT s;
+        INSERT INTO t1 SELECT randomblob(900), randomblob(900) FROM t1;
+      ROLLBACK TO s;
+    COMMIT;
+  }
+  execsql { SELECT * FROM t1 }
+} {1 2 3 4 5 6 7 8 9 10 11 12}
+do_test wal-21.3 {
+  execsql { PRAGMA integrity_check }
+} {ok}
+
+#-------------------------------------------------------------------------
+# Test reading and writing of databases with different page-sizes.
+#
+incr ::do_not_use_codec
+foreach pgsz {512 1024 2048 4096 8192 16384 32768 65536} {
+  do_multiclient_test tn [string map [list %PGSZ% $pgsz] {
+    do_test wal-22.%PGSZ%.$tn.1 {
+      sql1 {
+        PRAGMA main.page_size = %PGSZ%;
+        PRAGMA auto_vacuum = 0;
+        PRAGMA journal_mode = WAL;
+        CREATE TABLE t1(x UNIQUE);
+        INSERT INTO t1 SELECT randomblob(800);
+        INSERT INTO t1 SELECT randomblob(800);
+        INSERT INTO t1 SELECT randomblob(800);
+      }
+    } {wal}
+    do_test wal-22.%PGSZ%.$tn.2 { sql2 { PRAGMA integrity_check } } {ok}
+    do_test wal-22.%PGSZ%.$tn.3 {
+      sql1 {PRAGMA wal_checkpoint}
+      expr {[file size test.db] % %PGSZ%}
+    } {0}
+  }]
+}
+incr ::do_not_use_codec -1
+
+#-------------------------------------------------------------------------
+# Test that when 1 or more pages are recovered from a WAL file, 
+# sqlite3_log() is invoked to report this to the user.
+#
+ifcapable curdir {
+  set walfile [file nativename [file join [get_pwd] test.db-wal]]
+} else {
+  set walfile test.db-wal
+}
+catch {db close}
+forcedelete test.db
+do_test wal-23.1 {
+  faultsim_delete_and_reopen
+  execsql {
+    CREATE TABLE t1(a, b);
+    PRAGMA journal_mode = WAL;
+    INSERT INTO t1 VALUES(1, 2);
+    INSERT INTO t1 VALUES(3, 4);
+  }
+  faultsim_save_and_close
+
+  sqlite3_shutdown
+  test_sqlite3_log [list lappend ::log]
+  set ::log [list]
+  sqlite3 db test.db
+  execsql { SELECT * FROM t1 }
+} {1 2 3 4}
+do_test wal-23.2 { set ::log } {}
+
+do_test wal-23.3 {
+  db close
+  set ::log [list]
+  faultsim_restore_and_reopen
+  execsql { SELECT * FROM t1 }
+} {1 2 3 4}
+do_test wal-23.4 { 
+  set ::log 
+} [list SQLITE_NOTICE_RECOVER_WAL \
+    "recovered 2 frames from WAL file $walfile"]
+
+
+ifcapable autovacuum {
+  # This block tests that if the size of a database is reduced by a 
+  # transaction (because of an incremental or auto-vacuum), that no
+  # data is written to the WAL file for the truncated pages as part
+  # of the commit. e.g. if a transaction reduces the size of a database
+  # to N pages, data for page N+1 should not be written to the WAL file 
+  # when committing the transaction. At one point such data was being 
+  # written.
+  #
+  catch {db close}
+  forcedelete test.db
+  sqlite3 db test.db
+  do_execsql_test 24.1 {
+    PRAGMA auto_vacuum = 2;
+    PRAGMA journal_mode = WAL;
+    PRAGMA page_size = 1024;
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(randomblob(5000));
+    INSERT INTO t1 SELECT * FROM t1;
+    INSERT INTO t1 SELECT * FROM t1;
+    INSERT INTO t1 SELECT * FROM t1;
+    INSERT INTO t1 SELECT * FROM t1;
+  } {wal}
+  do_test 24.2 { 
+    execsql {
+      DELETE FROM t1;
+      PRAGMA wal_checkpoint;
+    }
+    db close
+    sqlite3 db test.db
+    file exists test.db-wal
+  } 0
+  do_test 24.3 {
+    file size test.db
+  } [expr 84 * 1024]
+  do_test 24.4 {
+    execsql { 
+      PRAGMA cache_size = 200;
+      PRAGMA incremental_vacuum;
+      PRAGMA wal_checkpoint;
+    }
+    file size test.db
+  } [expr 3 * 1024]
+
+  # WAL file now contains a single frame - the new root page for table t1.
+  # It would be two frames (the new root page and a padding frame) if the
+  # ZERO_DAMAGE flag were not set.
+  do_test 24.5 {
+    file size test.db-wal
+  } [wal_file_size 1 1024]
+}
+
+db close
+sqlite3_shutdown
+test_sqlite3_log
+sqlite3_initialize
+
+# Make sure PRAGMA journal_mode=WAL works with ATTACHED databases in
+# all journal modes.
+#
+foreach mode {OFF MEMORY PERSIST DELETE TRUNCATE WAL} {
+  delete_file test.db test2.db
+  sqlite3 db test.db
+  do_test wal-25.$mode {
+    db eval "PRAGMA journal_mode=$mode"
+    db eval {ATTACH 'test2.db' AS t2; PRAGMA journal_mode=WAL;}
+  } {wal}
+  db close
+}
+
+# 2021-03-10 forum post https://sqlite.org/forum/forumpost/a006d86f72
+#
+file delete test.db
+sqlite3 db test.db
+db eval {PRAGMA journal_mode=WAL}
+for {set i 0} {$i<$SQLITE_MAX_ATTACHED} {incr i} {
+  do_test wal-26.1.$i {
+    file delete attached-$i.db
+    db eval "ATTACH 'attached-$i.db' AS a$i;"
+    db eval "PRAGMA a$i.journal_mode=WAL;"
+    db eval "CREATE TABLE a$i.t$i (x);"
+    db eval "INSERT INTO t$i VALUES(zeroblob(10000));"
+    db eval "DELETE FROM t$i;"
+    db eval "INSERT INTO t$i VALUES(randomblob(10000));"
+    expr {[file size attached-$i.db-wal]>10000}
+  } {1}
+}
+for {set i [expr {$SQLITE_MAX_ATTACHED-1}]} {$i>=0} {incr i -1} {
+  do_test wal-26.2.$i {
+    db eval "PRAGMA a$i.wal_checkpoint(TRUNCATE);"
+    file size attached-$i.db-wal
+  } {0}
+  for {set j 0} {$j<$i} {incr j} {
+    do_test wal-26.2.$i.$j {
+      expr {[file size attached-$j.db-wal]>10000}
+    } {1}
+  }
+}
+db close
+
+
+test_restore_config_pagecache
+finish_test
diff --git a/test/wal2.test b/test/wal2.test
new file mode 100644
index 0000000000000000000000000000000000000000..5ef303edc66a0fc758094b42119e49b0bc320eed
--- /dev/null
+++ b/test/wal2.test
@@ -0,0 +1,1320 @@
+# 2010 May 5
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the operation of the library in
+# "PRAGMA journal_mode=WAL" mode.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+source $testdir/malloc_common.tcl
+source $testdir/wal_common.tcl
+
+set testprefix wal2
+
+ifcapable !wal {finish_test ; return }
+
+set sqlite_sync_count 0
+proc cond_incr_sync_count {adj} {
+  global sqlite_sync_count
+  if {$::tcl_platform(platform) == "windows"} {
+    incr sqlite_sync_count $adj
+  } {
+    ifcapable !dirsync {
+      incr sqlite_sync_count $adj
+    }
+  }
+}
+
+#-------------------------------------------------------------------------
+# Test case wal2-1.*:
+#
+# Set up a small database containing a single table. The database is not
+# checkpointed during the test - all content resides in the log file.
+#
+# Two connections are established to the database file - a writer ([db])
+# and a reader ([db2]). For each of the 8 integer fields in the wal-index
+# header (6 fields and 2 checksum values), do the following:
+#
+#   1. Modify the database using the writer.
+#
+#   2. Attempt to read the database using the reader. Before the reader
+#      has a chance to snapshot the wal-index header, increment one
+#      of the integer fields (so that the reader ends up with a corrupted
+#      header).
+#
+#   3. Check that the reader recovers the wal-index and reads the correct
+#      database content.
+#
+do_test wal2-1.0 {
+  proc tvfs_cb {method filename args} { 
+    set ::filename $filename
+    return SQLITE_OK 
+  }
+
+  testvfs tvfs
+  tvfs script tvfs_cb
+  tvfs filter xShmOpen
+
+  sqlite3 db  test.db -vfs tvfs
+  sqlite3 db2 test.db -vfs tvfs
+
+  execsql {
+    PRAGMA journal_mode = WAL;
+    CREATE TABLE t1(a);
+  } db2
+  execsql {
+    INSERT INTO t1 VALUES(1);
+    INSERT INTO t1 VALUES(2);
+    INSERT INTO t1 VALUES(3);
+    INSERT INTO t1 VALUES(4);
+    SELECT count(a), sum(a) FROM t1;
+  }
+} {4 10}
+do_test wal2-1.1 {
+  execsql { SELECT count(a), sum(a) FROM t1 } db2
+} {4 10}
+
+set RECOVER [list                                      \
+  {0 1 lock exclusive}   {1 2 lock exclusive}          \
+  {4 1 lock exclusive}   {4 1 unlock exclusive}        \
+  {5 1 lock exclusive}   {5 1 unlock exclusive}        \
+  {6 1 lock exclusive}   {6 1 unlock exclusive}        \
+  {7 1 lock exclusive}   {7 1 unlock exclusive}        \
+  {1 2 unlock exclusive} {0 1 unlock exclusive}        \
+]
+set READ [list                                         \
+  {4 1 lock shared}    {4 1 unlock shared}             \
+]
+set INITSLOT [list                                     \
+  {4 1 lock exclusive} {4 1 unlock exclusive}          \
+]
+
+foreach {tn iInsert res wal_index_hdr_mod wal_locks} "
+         2    5   {5 15}    0             {$RECOVER $READ}
+         3    6   {6 21}    1             {$RECOVER $READ}
+         4    7   {7 28}    2             {$RECOVER $READ}
+         5    8   {8 36}    3             {$RECOVER $READ}
+         6    9   {9 45}    4             {$RECOVER $READ}
+         7   10   {10 55}   5             {$RECOVER $READ}
+         8   11   {11 66}   6             {$RECOVER $READ}
+         9   12   {12 78}   7             {$RECOVER $READ}
+        10   13   {13 91}   8             {$RECOVER $READ}
+        11   14   {14 105}  9             {$RECOVER $READ}
+        12   15   {15 120}  -1            {$INITSLOT $READ}
+" {
+
+  do_test wal2-1.$tn.1 {
+    execsql { INSERT INTO t1 VALUES($iInsert) }
+    set ::locks [list]
+    proc tvfs_cb {method args} {
+      lappend ::locks [lindex $args 2]
+      return SQLITE_OK
+    }
+    tvfs filter xShmLock
+    if {$::wal_index_hdr_mod >= 0} {
+      incr_tvfs_hdr $::filename $::wal_index_hdr_mod 1
+    }
+    execsql { SELECT count(a), sum(a) FROM t1 } db2
+  } $res
+
+  do_test wal2-1.$tn.2 {
+    set ::locks
+  } $wal_locks
+}
+db close
+db2 close
+tvfs delete
+forcedelete test.db test.db-wal test.db-journal
+
+#-------------------------------------------------------------------------
+# This test case is very similar to the previous one, except, after
+# the reader reads the corrupt wal-index header, but before it has
+# a chance to re-read it under the cover of the RECOVER lock, the
+# wal-index header is replaced with a valid, but out-of-date, header.
+#
+# Because the header checksum looks Ok, the reader does not run recovery,
+# it simply drops back to a READ lock and proceeds. But because the
+# header is out-of-date, the reader reads the out-of-date snapshot.
+#
+# After this, the header is corrupted again and the reader is allowed
+# to run recovery. This time, it sees an up-to-date snapshot of the
+# database file.
+#
+set WRITER [list 0 1 lock exclusive]
+set LOCKS  [list \
+  {0 1 lock exclusive} {0 1 unlock exclusive} \
+  {4 1 lock exclusive} {4 1 unlock exclusive} \
+  {4 1 lock shared}    {4 1 unlock shared}    \
+]
+do_test wal2-2.0 {
+
+  testvfs tvfs
+  tvfs script tvfs_cb
+  tvfs filter xShmOpen
+  proc tvfs_cb {method args} {
+    set ::filename [lindex $args 0]
+    return SQLITE_OK
+  }
+
+  sqlite3 db  test.db -vfs tvfs
+  sqlite3 db2 test.db -vfs tvfs
+
+  execsql {
+    PRAGMA journal_mode = WAL;
+    CREATE TABLE t1(a);
+  } db2
+  execsql {
+    INSERT INTO t1 VALUES(1);
+    INSERT INTO t1 VALUES(2);
+    INSERT INTO t1 VALUES(3);
+    INSERT INTO t1 VALUES(4);
+    SELECT count(a), sum(a) FROM t1;
+  }
+} {4 10}
+do_test wal2-2.1 {
+  execsql { SELECT count(a), sum(a) FROM t1 } db2
+} {4 10}
+
+foreach {tn iInsert res0 res1 wal_index_hdr_mod} {
+         2    5   {4 10}   {5 15}    0
+         3    6   {5 15}   {6 21}    1
+         4    7   {6 21}   {7 28}    2
+         5    8   {7 28}   {8 36}    3
+         6    9   {8 36}   {9 45}    4
+         7   10   {9 45}   {10 55}   5
+         8   11   {10 55}  {11 66}   6
+         9   12   {11 66}  {12 78}   7
+} {
+  tvfs filter xShmLock
+
+  do_test wal2-2.$tn.1 {
+    set oldhdr [set_tvfs_hdr $::filename]
+    execsql { INSERT INTO t1 VALUES($iInsert) }
+    execsql { SELECT count(a), sum(a) FROM t1 }
+  } $res1
+
+  do_test wal2-2.$tn.2 {
+    set ::locks [list]
+    proc tvfs_cb {method args} {
+      set lock [lindex $args 2]
+      lappend ::locks $lock
+      if {$lock == $::WRITER} {
+        set_tvfs_hdr $::filename $::oldhdr
+      }
+      return SQLITE_OK
+    }
+
+    if {$::wal_index_hdr_mod >= 0} {
+      incr_tvfs_hdr $::filename $::wal_index_hdr_mod 1
+    }
+    execsql { SELECT count(a), sum(a) FROM t1 } db2
+  } $res0
+
+  do_test wal2-2.$tn.3 {
+    set ::locks
+  } $LOCKS
+
+  do_test wal2-2.$tn.4 {
+    set ::locks [list]
+    proc tvfs_cb {method args} {
+      set lock [lindex $args 2]
+      lappend ::locks $lock
+      return SQLITE_OK
+    }
+
+    if {$::wal_index_hdr_mod >= 0} {
+      incr_tvfs_hdr $::filename $::wal_index_hdr_mod 1
+    }
+    execsql { SELECT count(a), sum(a) FROM t1 } db2
+  } $res1
+}
+db close
+db2 close
+tvfs delete
+forcedelete test.db test.db-wal test.db-journal
+
+
+if 0 {
+#-------------------------------------------------------------------------
+# This test case - wal2-3.* - tests the response of the library to an
+# SQLITE_BUSY when attempting to obtain a READ or RECOVER lock.
+#
+#   wal2-3.0 - 2: SQLITE_BUSY when obtaining a READ lock
+#   wal2-3.3 - 6: SQLITE_BUSY when obtaining a RECOVER lock
+#
+do_test wal2-3.0 {
+  proc tvfs_cb {method args} {
+    if {$method == "xShmLock"} {
+      if {[info exists ::locked]} { return SQLITE_BUSY }
+    }
+    return SQLITE_OK
+  }
+
+  proc busyhandler x {
+    if {$x>3} { unset -nocomplain ::locked }
+    return 0
+  }
+
+  testvfs tvfs
+  tvfs script tvfs_cb
+  sqlite3 db test.db -vfs tvfs
+  db busy busyhandler
+
+  execsql {
+    PRAGMA journal_mode = WAL;
+    CREATE TABLE t1(a);
+    INSERT INTO t1 VALUES(1);
+    INSERT INTO t1 VALUES(2);
+    INSERT INTO t1 VALUES(3);
+    INSERT INTO t1 VALUES(4);
+  } 
+
+  set ::locked 1
+  info exists ::locked
+} {1}
+do_test wal2-3.1 {
+  execsql { SELECT count(a), sum(a) FROM t1 }
+} {4 10}
+do_test wal2-3.2 {
+  info exists ::locked
+} {0}
+
+do_test wal2-3.3 {
+  proc tvfs_cb {method args} {
+    if {$method == "xShmLock"} {
+      if {[info exists ::sabotage]} {
+        unset -nocomplain ::sabotage
+        incr_tvfs_hdr [lindex $args 0] 1 1
+      }
+      if {[info exists ::locked] && [lindex $args 2] == "RECOVER"} {
+        return SQLITE_BUSY
+      }
+    }
+    return SQLITE_OK
+  }
+  set ::sabotage 1
+  set ::locked 1
+  list [info exists ::sabotage] [info exists ::locked]
+} {1 1}
+do_test wal2-3.4 {
+  execsql { SELECT count(a), sum(a) FROM t1 }
+} {4 10}
+do_test wal2-3.5 {
+  list [info exists ::sabotage] [info exists ::locked]
+} {0 0}
+db close
+tvfs delete
+forcedelete test.db test.db-wal test.db-journal
+
+}
+
+#-------------------------------------------------------------------------
+# Test that a database connection using a VFS that does not support the
+# xShmXXX interfaces cannot open a WAL database.
+#
+do_test wal2-4.1 {
+  sqlite3 db test.db
+  execsql {
+    PRAGMA auto_vacuum = 0;
+    PRAGMA journal_mode = WAL;
+    CREATE TABLE data(x);
+    INSERT INTO data VALUES('need xShmOpen to see this');
+    PRAGMA wal_checkpoint;
+  }
+  # Three pages in the WAL file at this point: One copy of page 1 and two
+  # of the root page for table "data".
+} {wal 0 3 3}
+do_test wal2-4.2 {
+  db close
+  testvfs tvfs -noshm 1
+  sqlite3 db test.db -vfs tvfs
+  catchsql { SELECT * FROM data }
+} {1 {unable to open database file}}
+do_test wal2-4.3 {
+  db close
+  testvfs tvfs
+  sqlite3 db test.db -vfs tvfs
+  catchsql { SELECT * FROM data }
+} {0 {{need xShmOpen to see this}}}
+db close
+tvfs delete
+
+#-------------------------------------------------------------------------
+# Test that if a database connection is forced to run recovery before it
+# can perform a checkpoint, it does not transition into RECOVER state.
+#
+# UPDATE: This has now changed. When running a checkpoint, if recovery is
+# required the client grabs all exclusive locks (just as it would for a
+# recovery performed as a pre-cursor to a normal database transaction).
+#
+set expected_locks [list]
+lappend expected_locks {1 1 lock exclusive}   ;# Lock checkpoint
+lappend expected_locks {0 1 lock exclusive}   ;# Lock writer
+lappend expected_locks {2 1 lock exclusive}   ;# Lock recovery
+# lappend expected_locks {4 4 lock exclusive}   ;# Lock all aReadMark[]
+lappend expected_locks {4 1 lock exclusive}   ;# Lock aReadMark[1]
+lappend expected_locks {4 1 unlock exclusive} ;# Unlock aReadMark[1]
+lappend expected_locks {5 1 lock exclusive}  
+lappend expected_locks {5 1 unlock exclusive}
+lappend expected_locks {6 1 lock exclusive} 
+lappend expected_locks {6 1 unlock exclusive}
+lappend expected_locks {7 1 lock exclusive} 
+lappend expected_locks {7 1 unlock exclusive}
+lappend expected_locks {2 1 unlock exclusive} ;# Unlock recovery 
+# lappend expected_locks {4 4 unlock exclusive} ;# Unlock all aReadMark[] 
+lappend expected_locks {0 1 unlock exclusive} ;# Unlock writer
+lappend expected_locks {3 1 lock exclusive}   ;# Lock aReadMark[0]
+lappend expected_locks {3 1 unlock exclusive} ;# Unlock aReadMark[0]
+lappend expected_locks {1 1 unlock exclusive} ;# Unlock checkpoint
+do_test wal2-5.1 {
+  proc tvfs_cb {method args} {
+    set ::shm_file [lindex $args 0]
+    if {$method == "xShmLock"} { lappend ::locks [lindex $args 2] }
+    return $::tvfs_cb_return
+  }
+  set tvfs_cb_return SQLITE_OK
+
+  testvfs tvfs
+  tvfs script tvfs_cb
+
+  sqlite3 db test.db -vfs tvfs
+  execsql {
+    PRAGMA journal_mode = WAL;
+    CREATE TABLE x(y);
+    INSERT INTO x VALUES(1);
+  }
+
+  incr_tvfs_hdr $::shm_file 1 1
+  set ::locks [list]
+  execsql { PRAGMA wal_checkpoint }
+  set ::locks
+} $expected_locks
+db close
+tvfs delete
+
+#-------------------------------------------------------------------------
+# This block, test cases wal2-6.*, tests the operation of WAL with
+# "PRAGMA locking_mode=EXCLUSIVE" set.
+#
+#   wal2-6.1.*: Changing to WAL mode before setting locking_mode=exclusive.
+#
+#   wal2-6.2.*: Changing to WAL mode after setting locking_mode=exclusive.
+#
+#   wal2-6.3.*: Changing back to rollback mode from WAL mode after setting 
+#               locking_mode=exclusive.
+#
+#   wal2-6.4.*: Check that xShmLock calls are omitted in exclusive locking
+#               mode.
+#
+#   wal2-6.5.*: 
+#
+#   wal2-6.6.*: Check that if the xShmLock() to reaquire a WAL read-lock when
+#               exiting exclusive mode fails (i.e. SQLITE_IOERR), then the
+#               connection silently remains in exclusive mode.
+#
+do_test wal2-6.1.1 {
+  forcedelete test.db test.db-wal test.db-journal
+  sqlite3 db test.db
+  execsql {
+    Pragma Journal_Mode = Wal;
+  }
+} {wal}
+do_test wal2-6.1.2 {
+  execsql { PRAGMA lock_status }
+} {main unlocked temp closed}
+do_test wal2-6.1.3 {
+  execsql {
+    SELECT * FROM sqlite_master;
+    Pragma Locking_Mode = Exclusive;
+  }
+  execsql {
+    BEGIN;
+      CREATE TABLE t1(a, b);
+      INSERT INTO t1 VALUES(1, 2);
+    COMMIT;
+    PRAGMA lock_status;
+  }
+} {main exclusive temp closed}
+do_test wal2-6.1.4 {
+  execsql { 
+    PRAGMA locking_mode = normal; 
+    PRAGMA lock_status;
+  }
+} {normal main exclusive temp closed}
+do_test wal2-6.1.5 {
+  execsql { 
+    SELECT * FROM t1;
+    PRAGMA lock_status;
+  }
+} {1 2 main shared temp closed}
+do_test wal2-6.1.6 {
+  execsql {
+    INSERT INTO t1 VALUES(3, 4);
+    PRAGMA lock_status;
+  }
+} {main shared temp closed}
+db close
+
+do_test wal2-6.2.1 {
+  forcedelete test.db test.db-wal test.db-journal
+  sqlite3 db test.db
+  execsql {
+    Pragma Locking_Mode = Exclusive;
+    Pragma Journal_Mode = Wal;
+    Pragma Lock_Status;
+  }
+} {exclusive wal main exclusive temp closed}
+do_test wal2-6.2.2 {
+  execsql {
+    BEGIN;
+      CREATE TABLE t1(a, b);
+      INSERT INTO t1 VALUES(1, 2);
+    COMMIT;
+    Pragma loCK_STATus;
+  }
+} {main exclusive temp closed}
+do_test wal2-6.2.3 {
+  db close
+  sqlite3 db test.db
+  execsql { SELECT * FROM sqlite_master }
+  execsql { PRAGMA LOCKING_MODE = EXCLUSIVE }
+} {exclusive}
+do_test wal2-6.2.4 {
+  execsql {
+    SELECT * FROM t1;
+    pragma lock_status;
+  }
+} {1 2 main shared temp closed}
+do_test wal2-6.2.5 {
+  execsql {
+    INSERT INTO t1 VALUES(3, 4);
+    pragma lock_status;
+  }
+} {main exclusive temp closed}
+do_test wal2-6.2.6 {
+  execsql {
+    PRAGMA locking_mode = NORMAL;
+    pragma lock_status;
+  }
+} {normal main exclusive temp closed}
+do_test wal2-6.2.7 {
+  execsql {
+    BEGIN IMMEDIATE; COMMIT;
+    pragma lock_status;
+  }
+} {main shared temp closed}
+do_test wal2-6.2.8 {
+  execsql {
+    PRAGMA locking_mode = EXCLUSIVE;
+    BEGIN IMMEDIATE; COMMIT;
+    PRAGMA locking_mode = NORMAL;
+  }
+  execsql {
+    SELECT * FROM t1;
+    pragma lock_status;
+  }
+} {1 2 3 4 main shared temp closed}
+do_test wal2-6.2.9 {
+  execsql {
+    INSERT INTO t1 VALUES(5, 6);
+    SELECT * FROM t1;
+    pragma lock_status;
+  }
+} {1 2 3 4 5 6 main shared temp closed}
+db close
+
+do_test wal2-6.3.1 {
+  forcedelete test.db test.db-wal test.db-journal
+  sqlite3 db test.db
+  execsql {
+    PRAGMA journal_mode = WAL;
+    PRAGMA locking_mode = exclusive;
+    BEGIN;
+      CREATE TABLE t1(x);
+      INSERT INTO t1 VALUES('Chico');
+      INSERT INTO t1 VALUES('Harpo');
+    COMMIT;
+  }
+  list [file exists test.db-wal] [file exists test.db-journal]
+} {1 0}
+do_test wal2-6.3.2 {
+  execsql { PRAGMA journal_mode = DELETE }
+  file exists test.db-wal
+} {0}
+do_test wal2-6.3.3 {
+  execsql { PRAGMA lock_status }
+} {main exclusive temp closed}
+do_test wal2-6.3.4 {
+  execsql { 
+    BEGIN;
+      INSERT INTO t1 VALUES('Groucho');
+  }
+} {}
+if {[atomic_batch_write test.db]==0} {
+  do_test wal2-6.3.4.1 {
+    list [file exists test.db-wal] [file exists test.db-journal]
+  } {0 1}
+}
+do_test wal2-6.3.5 {
+  execsql { PRAGMA lock_status }
+} {main exclusive temp closed}
+do_test wal2-6.3.6 {
+  execsql { COMMIT }
+} {}
+if {[atomic_batch_write test.db]==0} {
+  do_test wal2-6.3.6.1 {
+    list [file exists test.db-wal] [file exists test.db-journal]
+  } {0 1}
+}
+do_test wal2-6.3.7 {
+  execsql { PRAGMA lock_status }
+} {main exclusive temp closed}
+db close
+
+
+# This test - wal2-6.4.* - uses a single database connection and the
+# [testvfs] instrumentation to test that xShmLock() is being called
+# as expected when a WAL database is used with locking_mode=exclusive.
+#
+do_test wal2-6.4.1 {
+  forcedelete test.db test.db-wal test.db-journal
+  proc tvfs_cb {method args} {
+    set ::shm_file [lindex $args 0]
+    if {$method == "xShmLock"} { lappend ::locks [lindex $args 2] }
+    return "SQLITE_OK"
+  }
+  testvfs tvfs
+  tvfs script tvfs_cb
+  sqlite3 db test.db -vfs tvfs
+  set {} {}
+} {}
+
+set RECOVERY {
+  {0 1 lock exclusive}   {1 2 lock exclusive}
+  {4 1 lock exclusive}   {4 1 unlock exclusive}
+  {5 1 lock exclusive}   {5 1 unlock exclusive}
+  {6 1 lock exclusive}   {6 1 unlock exclusive}
+  {7 1 lock exclusive}   {7 1 unlock exclusive}
+  {1 2 unlock exclusive} {0 1 unlock exclusive}
+}
+set READMARK0_READ {
+  {3 1 lock shared} {3 1 unlock shared}
+}
+set READMARK0_WRITE {
+  {3 1 lock shared} 
+  {0 1 lock exclusive} {3 1 unlock shared} 
+  {4 1 lock exclusive} {4 1 unlock exclusive} {4 1 lock shared} 
+  {0 1 unlock exclusive} {4 1 unlock shared}
+}
+set READMARK1_SET {
+  {4 1 lock exclusive} {4 1 unlock exclusive}
+}
+set READMARK1_READ {
+  {4 1 lock shared} {4 1 unlock shared}
+}
+set READMARK1_WRITE {
+  {4 1 lock shared} 
+    {0 1 lock exclusive} {0 1 unlock exclusive} 
+  {4 1 unlock shared}
+}
+
+foreach {tn sql res expected_locks} {
+  2 {
+    PRAGMA auto_vacuum = 0;
+    PRAGMA journal_mode = WAL;
+    BEGIN;
+      CREATE TABLE t1(x);
+      INSERT INTO t1 VALUES('Leonard');
+      INSERT INTO t1 VALUES('Arthur');
+    COMMIT;
+  } {wal} {
+    $RECOVERY 
+    $READMARK0_WRITE
+  }
+
+  3 {
+    # This test should do the READMARK1_SET locking to populate the 
+    # aReadMark[1] slot with the current mxFrame value. Followed by
+    # READMARK1_READ to read the database.
+    #
+    SELECT * FROM t1
+  } {Leonard Arthur} {
+    $READMARK1_SET
+    $READMARK1_READ
+  }
+
+  4 {
+    # aReadMark[1] is already set to mxFrame. So just READMARK1_READ
+    # this time, not READMARK1_SET.
+    #
+    SELECT * FROM t1 ORDER BY x
+  } {Arthur Leonard} { 
+    $READMARK1_READ 
+  }
+
+  5 {
+    PRAGMA locking_mode = exclusive
+  } {exclusive} { } 
+
+  6 {
+    INSERT INTO t1 VALUES('Julius Henry');
+    SELECT * FROM t1;
+  } {Leonard Arthur {Julius Henry}} {
+    $READMARK1_READ
+  }
+
+  7 {
+    INSERT INTO t1 VALUES('Karl');
+    SELECT * FROM t1;
+  } {Leonard Arthur {Julius Henry} Karl} { }
+
+  8 {
+    PRAGMA locking_mode = normal
+  } {normal} { }
+
+  9 {
+    SELECT * FROM t1 ORDER BY x
+  } {Arthur {Julius Henry} Karl Leonard} $READMARK1_READ
+
+  10 { DELETE FROM t1 } {} $READMARK1_WRITE
+
+  11 {
+    SELECT * FROM t1
+  } {} {
+    $READMARK1_SET
+    $READMARK1_READ
+  }
+} {
+
+  set L [list]
+  foreach el [subst $expected_locks] { lappend L $el }
+
+  set S ""
+  foreach sq [split $sql "\n"] { 
+    set sq [string trim $sq]
+    if {[string match {#*} $sq]==0} {append S "$sq\n"}
+  }
+
+  set ::locks [list]
+  do_test wal2-6.4.$tn.1 { execsql $S } $res
+  do_test wal2-6.4.$tn.2 { set ::locks  } $L
+}
+
+db close
+tvfs delete
+
+do_test wal2-6.5.1 {
+  sqlite3 db test.db
+  execsql {
+    PRAGMA auto_vacuum = 0;
+    PRAGMA journal_mode = wal;
+    PRAGMA locking_mode = exclusive;
+    CREATE TABLE t2(a, b);
+    PRAGMA wal_checkpoint;
+    INSERT INTO t2 VALUES('I', 'II');
+    PRAGMA journal_mode;
+  }
+} {wal exclusive 0 2 2 wal}
+do_test wal2-6.5.2 {
+  execsql {
+    PRAGMA locking_mode = normal;
+    INSERT INTO t2 VALUES('III', 'IV');
+    PRAGMA locking_mode = exclusive;
+    SELECT * FROM t2;
+  }
+} {normal exclusive I II III IV}
+do_test wal2-6.5.3 {
+  execsql { PRAGMA wal_checkpoint }
+} {0 2 2}
+db close
+
+proc lock_control {method filename handle spec} {
+  foreach {start n op type} $spec break
+  if {$op == "lock"} { return SQLITE_IOERR }
+  return SQLITE_OK
+}
+do_test wal2-6.6.1 {
+  testvfs T
+  T script lock_control
+  T filter {}
+  sqlite3 db test.db -vfs T
+  execsql { SELECT * FROM sqlite_master }
+  execsql { PRAGMA locking_mode = exclusive }
+  execsql { INSERT INTO t2 VALUES('V', 'VI') }
+} {}
+do_test wal2-6.6.2 {
+  execsql { PRAGMA locking_mode = normal }
+  T filter xShmLock
+  execsql { INSERT INTO t2 VALUES('VII', 'VIII') }
+} {}
+do_test wal2-6.6.3 {
+  # At this point the connection should still be in exclusive-mode, even
+  # though it tried to exit exclusive-mode when committing the INSERT
+  # statement above. To exit exclusive mode, SQLite has to take a read-lock 
+  # on the WAL file using xShmLock(). Since that call failed, it remains
+  # in exclusive mode.
+  #
+  sqlite3 db2 test.db -vfs T
+  catchsql { SELECT * FROM t2 } db2
+} {1 {database is locked}}
+do_test wal2-6.6.2 {
+  db2 close
+  T filter {}
+  execsql { INSERT INTO t2 VALUES('IX', 'X') }
+} {}
+do_test wal2-6.6.4 {
+  # This time, we have successfully exited exclusive mode. So the second
+  # connection can read the database.
+  sqlite3 db2 test.db -vfs T
+  catchsql { SELECT * FROM t2 } db2
+} {0 {I II III IV V VI VII VIII IX X}}
+
+db close
+db2 close
+T delete
+
+#-------------------------------------------------------------------------
+# Test a theory about the checksum algorithm. Theory was false and this
+# test did not provoke a bug.
+#
+forcedelete test.db test.db-wal test.db-journal
+do_test wal2-7.1.1 {
+  sqlite3 db test.db
+  execsql {
+    PRAGMA page_size = 4096;
+    PRAGMA journal_mode = WAL;
+    CREATE TABLE t1(a, b);
+  }
+  file size test.db
+} {4096}
+do_test wal2-7.1.2 {
+  forcecopy test.db test2.db
+  forcecopy test.db-wal test2.db-wal
+  # The first 32 bytes of the WAL file contain the WAL header. Offset 48
+  # is the first byte of the checksum for the first frame in the WAL. 
+  # The following three lines replaces the contents of that byte with 
+  # a different value.
+  set newval FF
+  if {$newval == [hexio_read test2.db-wal 48 1]} { set newval 00 }
+  hexio_write test2.db-wal 48 $newval
+} {1}
+do_test wal2-7.1.3 {
+  sqlite3 db2 test2.db
+  execsql { PRAGMA wal_checkpoint } db2
+  execsql { SELECT * FROM sqlite_master } db2
+} {}
+db close
+db2 close
+forcedelete test.db test.db-wal test.db-journal
+do_test wal2-8.1.2 {
+  sqlite3 db test.db
+  execsql {
+    PRAGMA auto_vacuum=OFF;
+    PRAGMA page_size = 1024;
+    PRAGMA journal_mode = WAL;
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(zeroblob(8188*1020));
+    CREATE TABLE t2(y);
+    PRAGMA wal_checkpoint;
+  }
+  execsql {
+    SELECT rootpage>=8192 FROM sqlite_master WHERE tbl_name = 't2';
+  }
+} {1}
+do_test wal2-8.1.3 {
+  execsql {
+    PRAGMA cache_size = 10;
+    CREATE TABLE t3(z);
+    BEGIN;
+      INSERT INTO t3 VALUES(randomblob(900));
+      INSERT INTO t3 SELECT randomblob(900) FROM t3;
+      INSERT INTO t2 VALUES('hello');
+      INSERT INTO t3 SELECT randomblob(900) FROM t3;
+      INSERT INTO t3 SELECT randomblob(900) FROM t3;
+      INSERT INTO t3 SELECT randomblob(900) FROM t3;
+      INSERT INTO t3 SELECT randomblob(900) FROM t3;
+      INSERT INTO t3 SELECT randomblob(900) FROM t3;
+      INSERT INTO t3 SELECT randomblob(900) FROM t3;
+    ROLLBACK;
+  }
+  execsql {
+    INSERT INTO t2 VALUES('goodbye');
+    INSERT INTO t3 SELECT randomblob(900) FROM t3;
+    INSERT INTO t3 SELECT randomblob(900) FROM t3;
+  }
+} {}
+do_test wal2-8.1.4 {
+  sqlite3 db2 test.db
+  execsql { SELECT * FROM t2 }
+} {goodbye}
+db2 close
+db close
+
+#-------------------------------------------------------------------------
+# Test that even if the checksums for both are valid, if the two copies
+# of the wal-index header in the wal-index do not match, the client
+# runs (or at least tries to run) database recovery.
+# 
+#
+proc get_name {method args} { set ::filename [lindex $args 0] ; tvfs filter {} }
+testvfs tvfs
+tvfs script get_name
+tvfs filter xShmOpen
+
+forcedelete test.db test.db-wal test.db-journal
+do_test wal2-9.1 {
+  sqlite3 db test.db -vfs tvfs
+  execsql {
+    PRAGMA journal_mode = WAL;
+    CREATE TABLE x(y);
+    INSERT INTO x VALUES('Barton');
+    INSERT INTO x VALUES('Deakin');
+  }
+
+  # Set $wih(1) to the contents of the wal-index header after
+  # the frames associated with the first two rows in table 'x' have
+  # been inserted. Then insert one more row and set $wih(2)
+  # to the new value of the wal-index header.
+  #
+  # If the $wih(1) is written into the wal-index before running
+  # a read operation, the client will see only the first two rows. If
+  # $wih(2) is written into the wal-index, the client will see
+  # three rows. If an invalid header is written into the wal-index, then
+  # the client will run recovery and see three rows.
+  #
+  set wih(1) [set_tvfs_hdr $::filename]
+  execsql { INSERT INTO x VALUES('Watson') }
+  set wih(2) [set_tvfs_hdr $::filename]
+
+  sqlite3 db2 test.db -vfs tvfs
+  execsql { SELECT * FROM x } db2
+} {Barton Deakin Watson}
+
+foreach {tn hdr1 hdr2 res} [list                                            \
+  3  $wih(1)                $wih(1)                {Barton Deakin}          \
+  4  $wih(1)                $wih(2)                {Barton Deakin Watson}   \
+  5  $wih(2)                $wih(1)                {Barton Deakin Watson}   \
+  6  $wih(2)                $wih(2)                {Barton Deakin Watson}   \
+  7  $wih(1)                $wih(1)                {Barton Deakin}          \
+  8  {0 0 0 0 0 0 0 0 0 0 0 0} {0 0 0 0 0 0 0 0 0 0 0 0} {Barton Deakin Watson}
+] {
+  do_test wal2-9.$tn {
+    set_tvfs_hdr $::filename $hdr1 $hdr2
+    execsql { SELECT * FROM x } db2
+  } $res
+}
+
+db2 close
+db close
+
+#-------------------------------------------------------------------------
+# This block of tests - wal2-10.* - focus on the libraries response to
+# new versions of the wal or wal-index formats. 
+#
+#   wal2-10.1.*: Test that the library refuses to "recover" a new WAL 
+#                format.
+#
+#   wal2-10.2.*: Test that the library refuses to read or write a database
+#                if the wal-index version is newer than it understands.
+#
+# At time of writing, the only versions of the wal and wal-index formats
+# that exist are versions 3007000 (corresponding to SQLite version 3.7.0,
+# the first version of SQLite to feature wal mode).
+#
+do_test wal2-10.1.1 {
+  faultsim_delete_and_reopen
+  execsql {
+    PRAGMA journal_mode = WAL;
+    CREATE TABLE t1(a, b);
+    PRAGMA wal_checkpoint;
+    INSERT INTO t1 VALUES(1, 2);
+    INSERT INTO t1 VALUES(3, 4);
+  }
+  faultsim_save_and_close
+} {}
+do_test wal2-10.1.2 {
+  faultsim_restore_and_reopen
+  execsql { SELECT * FROM t1 }
+} {1 2 3 4}
+do_test wal2-10.1.3 {
+  faultsim_restore_and_reopen
+  set hdr [wal_set_walhdr test.db-wal]
+  lindex $hdr 1
+} {3007000}
+do_test wal2-10.1.4 {
+  lset hdr 1 3007001
+  wal_set_walhdr test.db-wal $hdr
+  catchsql { SELECT * FROM t1 }
+} {1 {unable to open database file}}
+
+testvfs tvfs -default 1
+do_test wal2-10.2.1 {
+  faultsim_restore_and_reopen
+  execsql { SELECT * FROM t1 }
+} {1 2 3 4}
+do_test wal2-10.2.2 { 
+  set hdr [set_tvfs_hdr $::filename] 
+  lindex $hdr 0 
+} {3007000}
+do_test wal2-10.2.3 { 
+  lset hdr 0 3007001
+  wal_fix_walindex_cksum hdr 
+  set_tvfs_hdr $::filename $hdr
+  catchsql { SELECT * FROM t1 }
+} {1 {unable to open database file}}
+db close
+tvfs delete
+
+#-------------------------------------------------------------------------
+# This block of tests - wal2-11.* - tests that it is not possible to put
+# the library into an infinite loop by presenting it with a corrupt
+# hash table (one that appears to contain a single chain of infinite 
+# length).
+#
+#   wal2-11.1.*: While reading the hash-table.
+#
+#   wal2-11.2.*: While writing the hash-table.
+#
+testvfs tvfs -default 1
+do_test wal2-11.0 {
+  faultsim_delete_and_reopen
+  execsql {
+    PRAGMA journal_mode = WAL;
+    CREATE TABLE t1(a, b, c);
+    INSERT INTO t1 VALUES(1, 2, 3);
+    INSERT INTO t1 VALUES(4, 5, 6);
+    INSERT INTO t1 VALUES(7, 8, 9);
+    SELECT * FROM t1;
+  }
+} {wal 1 2 3 4 5 6 7 8 9}
+
+do_test wal2-11.1.1 {
+  sqlite3 db2 test.db
+  execsql { SELECT name FROM sqlite_master } db2
+} {t1}
+
+if {$::tcl_version>=8.5} {
+  # Set all zeroed slots in the first hash table to invalid values.
+  #
+  set blob [string range [tvfs shm $::filename] 0 16383]
+  set I [string range [tvfs shm $::filename] 16384 end]
+  binary scan $I t* L
+  set I [list]
+  foreach p $L {
+    lappend I [expr $p ? $p : 400]
+  }
+  append blob [binary format t* $I]
+  tvfs shm $::filename $blob
+  do_test wal2-11.2 {
+    catchsql { INSERT INTO t1 VALUES(10, 11, 12) }
+  } {1 {database disk image is malformed}}
+  
+  # Fill up the hash table on the first page of shared memory with 0x55 bytes.
+  #
+  set blob [string range [tvfs shm $::filename] 0 16383]
+  append blob [string repeat [binary format c 55] 16384]
+  tvfs shm $::filename $blob
+  do_test wal2-11.3 {
+    catchsql { SELECT * FROM t1 } db2
+  } {1 {database disk image is malformed}}
+}
+
+db close
+db2 close
+tvfs delete
+
+#-------------------------------------------------------------------------
+# If a connection is required to create a WAL or SHM file, it creates 
+# the new files with the same file-system permissions as the database 
+# file itself. Test this.
+#
+if {$::tcl_platform(platform) == "unix"} {
+  faultsim_delete_and_reopen
+  # Changed on 2012-02-13: umask is deliberately ignored for -wal files.
+  #set umask [exec /bin/sh -c umask]
+  set umask 0
+  
+
+  do_test wal2-12.1 {
+    sqlite3 db test.db
+    execsql { 
+      CREATE TABLE tx(y, z);
+      PRAGMA journal_mode = WAL;
+    }
+    db close
+    list [file exists test.db-wal] [file exists test.db-shm]
+  } {0 0}
+  
+  foreach {tn permissions} {
+   1 00644
+   2 00666
+   3 00600
+   4 00755
+  } {
+    if {$tcl_version>=9.0} {
+      set effective [format %.5d [expr $permissions & ~$umask]]
+    } else {
+      set effective [format %.5o [expr $permissions & ~$umask]]
+    }
+    do_test wal2-12.2.$tn.1 {
+      file attributes test.db -permissions $permissions
+      string map {o 0} [file attributes test.db -permissions]
+    } $permissions
+    do_test wal2-12.2.$tn.2 {
+      list [file exists test.db-wal] [file exists test.db-shm]
+    } {0 0}
+    do_test wal2-12.2.$tn.3 {
+      sqlite3 db test.db
+      execsql { INSERT INTO tx DEFAULT VALUES }
+      list [file exists test.db-wal] [file exists test.db-shm]
+    } {1 1}
+    do_test wal2-12.2.$tn.4 {
+      set x [list [file attr test.db-wal -perm] [file attr test.db-shm -perm]]
+      string map {o 0} $x
+    } [list $effective $effective]
+    do_test wal2-12.2.$tn.5 {
+      db close
+      list [file exists test.db-wal] [file exists test.db-shm]
+    } {0 0}
+  }
+}
+
+#-------------------------------------------------------------------------
+# Test the libraries response to discovering that one or more of the
+# database, wal or shm files cannot be opened, or can only be opened
+# read-only.
+#
+if {$::tcl_platform(platform) == "unix"} {
+  proc perm {} {
+    set L [list]
+    foreach f {test.db test.db-wal test.db-shm} {
+      if {[file exists $f]} {
+        lappend L [file attr $f -perm]
+      } else {
+        lappend L {}
+      }
+    }
+    set L
+  }
+
+  faultsim_delete_and_reopen
+  execsql {
+    PRAGMA journal_mode = WAL;
+    CREATE TABLE t1(a, b);
+    PRAGMA wal_checkpoint;
+    INSERT INTO t1 VALUES('3.14', '2.72');
+  }
+  do_test wal2-13.1.1 {
+    list [file exists test.db-shm] [file exists test.db-wal]
+  } {1 1}
+  faultsim_save_and_close
+
+  foreach {tn db_perm wal_perm shm_perm can_open can_read can_write} {
+    2   00644   00644   00644   1   1   1
+    3   00644   00400   00644   1   1   0
+    4   00644   00644   00400   1   1   0
+    5   00400   00644   00644   1   1   0
+
+    7   00644   00000   00644   1   0   0
+    8   00644   00644   00000   1   0   0
+    9   00000   00644   00644   0   0   0
+  } {
+    faultsim_restore
+    do_test wal2-13.$tn.1 {
+      file attr test.db     -perm $db_perm
+      file attr test.db-wal -perm $wal_perm
+      file attr test.db-shm -perm $shm_perm
+
+      set     L [file attr test.db -perm]
+      lappend L [file attr test.db-wal -perm]
+      lappend L [file attr test.db-shm -perm]
+      string map {o 0} $L
+    } [list $db_perm $wal_perm $shm_perm]
+
+    # If $can_open is true, then it should be possible to open a database
+    # handle. Otherwise, if $can_open is 0, attempting to open the db
+    # handle throws an "unable to open database file" exception.
+    #
+    set r(1) {0 ok}
+    set r(0) {1 {unable to open database file}}
+    do_test wal2-13.$tn.2 {
+      list [catch {sqlite3 db test.db ; set {} ok} msg] $msg
+    } $r($can_open)
+
+    if {$can_open} {
+
+      # If $can_read is true, then the client should be able to read from
+      # the database file. If $can_read is false, attempting to read should
+      # throw the "unable to open database file" exception. 
+      #
+      set a(0) {1 {unable to open database file}}
+      set a(1) {0 {3.14 2.72}}
+      do_test wal2-13.$tn.3 {
+        catchsql { SELECT * FROM t1 }
+      } $a($can_read)
+  
+      # Now try to write to the db file. If the client can read but not
+      # write, then it should throw the familiar "unable to open db file"
+      # exception. If it can read but not write, the exception should
+      # be "attempt to write a read only database".
+      #
+      # If the client can read and write, the operation should succeed.
+      #
+      set b(0,0) {1 {unable to open database file}}
+      set b(1,0) {1 {attempt to write a readonly database}}
+      set b(1,1) {0 {}}
+      do_test wal2-13.$tn.4 {
+        catchsql { INSERT INTO t1 DEFAULT VALUES }
+      } $b($can_read,$can_write)
+    }
+    catch { db close }
+  }
+}
+
+#-------------------------------------------------------------------------
+# Test that "PRAGMA checkpoint_fullsync" appears to be working.
+#
+foreach {tn sql reslist} {
+  1 { }                                 {10 0 4 0 6 0}
+  2 { PRAGMA checkpoint_fullfsync = 1 } {10 6 4 3 6 3}
+  3 { PRAGMA checkpoint_fullfsync = 0 } {10 0 4 0 6 0}
+} {
+  ifcapable default_ckptfullfsync {
+    if {[string trim $sql]==""} continue
+  }
+  faultsim_delete_and_reopen
+
+  execsql {PRAGMA auto_vacuum = 0; PRAGMA synchronous = FULL;}
+  execsql $sql
+  do_execsql_test wal2-14.$tn.0 { PRAGMA page_size = 4096 }   {}
+  do_execsql_test wal2-14.$tn.1 { PRAGMA journal_mode = WAL } {wal}
+
+  set sqlite_sync_count 0
+  set sqlite_fullsync_count 0
+
+  do_execsql_test wal2-14.$tn.2 {
+    PRAGMA wal_autocheckpoint = 10;
+    CREATE TABLE t1(a, b);                -- 2 wal syncs
+    INSERT INTO t1 VALUES(1, 2);          -- 2 wal sync
+    PRAGMA wal_checkpoint;                -- 1 wal sync, 1 db sync
+    BEGIN;
+      INSERT INTO t1 VALUES(3, 4);
+      INSERT INTO t1 VALUES(5, 6);
+    COMMIT;                               -- 2 wal sync
+    PRAGMA wal_checkpoint;                -- 1 wal sync, 1 db sync
+  } {10 0 3 3 0 1 1}
+
+  do_test wal2-14.$tn.3 {
+    cond_incr_sync_count 1
+    list $sqlite_sync_count $sqlite_fullsync_count
+  } [lrange $reslist 0 1]
+
+  set sqlite_sync_count 0
+  set sqlite_fullsync_count 0
+
+  do_test wal2-14.$tn.4 {
+    execsql { INSERT INTO t1 VALUES(7, zeroblob(12*4096)) }
+    list $sqlite_sync_count $sqlite_fullsync_count
+  } [lrange $reslist 2 3]
+
+  set sqlite_sync_count 0
+  set sqlite_fullsync_count 0
+
+  do_test wal2-14.$tn.5 {
+    execsql { PRAGMA wal_autocheckpoint = 1000 }
+    execsql { INSERT INTO t1 VALUES(9, 10) }
+    execsql { INSERT INTO t1 VALUES(11, 12) }
+    execsql { INSERT INTO t1 VALUES(13, 14) }
+    db close
+    list $sqlite_sync_count $sqlite_fullsync_count
+  } [lrange $reslist 4 5]
+}
+
+catch { db close }
+
+# PRAGMA checkpoint_fullsync
+# PRAGMA fullfsync
+# PRAGMA synchronous
+#
+foreach {tn settings restart_sync commit_sync ckpt_sync} {
+  1  {0 0 off}     {0 0}  {0 0}  {0 0}
+  2  {0 0 normal}  {1 0}  {0 0}  {2 0}
+  3  {0 0 full}    {2 0}  {1 0}  {2 0}
+
+  4  {0 1 off}     {0 0}  {0 0}  {0 0}
+  5  {0 1 normal}  {0 1}  {0 0}  {0 2}
+  6  {0 1 full}    {0 2}  {0 1}  {0 2}
+
+  7  {1 0 off}     {0 0}  {0 0}  {0 0}
+  8  {1 0 normal}  {0 1}  {0 0}  {0 2}
+  9  {1 0 full}    {1 1}  {1 0}  {0 2}
+
+  10 {1 1 off}     {0 0}  {0 0}  {0 0}
+  11 {1 1 normal}  {0 1}  {0 0}  {0 2}
+  12 {1 1 full}    {0 2}  {0 1}  {0 2}
+} {
+  forcedelete test.db
+
+  testvfs tvfs -default 1
+  tvfs filter xSync
+  tvfs script xSyncCb
+  proc xSyncCb {method file fileid flags} {
+    incr ::sync($flags)
+  }
+
+  sqlite3 db test.db
+  do_execsql_test 15.$tn.1 "
+    PRAGMA page_size = 4096;
+    CREATE TABLE t1(x);
+    PRAGMA wal_autocheckpoint = OFF;
+    PRAGMA journal_mode = WAL;
+    PRAGMA checkpoint_fullfsync = [lindex $settings 0];
+    PRAGMA fullfsync = [lindex $settings 1];
+    PRAGMA synchronous = [lindex $settings 2];
+  " {0 wal}
+
+  do_test 15.$tn.2 {
+    set sync(normal) 0
+    set sync(full) 0
+    execsql { INSERT INTO t1 VALUES('abc') }
+    list $::sync(normal) $::sync(full)
+  } $restart_sync
+
+  do_test 15.$tn.3 {
+    set sync(normal) 0
+    set sync(full) 0
+    execsql { INSERT INTO t1 VALUES('abc') }
+    list $::sync(normal) $::sync(full)
+  } $commit_sync
+
+  do_test 15.$tn.4 {
+    set sync(normal) 0
+    set sync(full) 0
+    execsql { INSERT INTO t1 VALUES('def') }
+    list $::sync(normal) $::sync(full)
+  } $commit_sync
+
+  do_test 15.$tn.5 {
+    set sync(normal) 0
+    set sync(full) 0
+    execsql { PRAGMA wal_checkpoint }
+    list $::sync(normal) $::sync(full)
+  } $ckpt_sync
+  
+  db close
+  tvfs delete
+}
+
+
+
+finish_test
diff --git a/test/wal3.test b/test/wal3.test
new file mode 100644
index 0000000000000000000000000000000000000000..cb28d0f0b9295642f268ee0f6ff88f9c01e5af27
--- /dev/null
+++ b/test/wal3.test
@@ -0,0 +1,652 @@
+# 2010 April 13
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the operation of the library in
+# "PRAGMA journal_mode=WAL" mode.
+#
+# TESTRUNNER: slow
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+source $testdir/wal_common.tcl
+source $testdir/malloc_common.tcl
+ifcapable !wal {finish_test ; return }
+
+set a_string_counter 1
+proc a_string {n} {
+  global a_string_counter
+  incr a_string_counter
+  string range [string repeat "${a_string_counter}." $n] 1 $n
+}
+db func a_string a_string
+
+#-------------------------------------------------------------------------
+# When a rollback or savepoint rollback occurs, the client may remove
+# elements from one of the hash tables in the wal-index. This block
+# of test cases tests that nothing appears to go wrong when this is
+# done.
+#
+do_test wal3-1.0 {
+  execsql {
+    PRAGMA cache_size = 2000;
+    PRAGMA page_size = 1024;
+    PRAGMA auto_vacuum = off;
+    PRAGMA synchronous = normal;
+    PRAGMA journal_mode = WAL;
+    PRAGMA wal_autocheckpoint = 0;
+    BEGIN;
+      CREATE TABLE t1(x);
+      INSERT INTO t1 VALUES( a_string(800) );                  /*    1 */
+      INSERT INTO t1 SELECT a_string(800) FROM t1;             /*    2 */
+      INSERT INTO t1 SELECT a_string(800) FROM t1;             /*    4 */
+      INSERT INTO t1 SELECT a_string(800) FROM t1;             /*    8 */
+      INSERT INTO t1 SELECT a_string(800) FROM t1;             /*   16 */
+      INSERT INTO t1 SELECT a_string(800) FROM t1;             /*   32 */
+      INSERT INTO t1 SELECT a_string(800) FROM t1;             /*   64 */
+      INSERT INTO t1 SELECT a_string(800) FROM t1;             /*  128*/
+      INSERT INTO t1 SELECT a_string(800) FROM t1;             /*  256 */
+      INSERT INTO t1 SELECT a_string(800) FROM t1;             /*  512 */
+      INSERT INTO t1 SELECT a_string(800) FROM t1;             /* 1024 */
+      INSERT INTO t1 SELECT a_string(800) FROM t1;             /* 2048 */
+      INSERT INTO t1 SELECT a_string(800) FROM t1 LIMIT 1970;  /* 4018 */
+    COMMIT;
+    PRAGMA cache_size = 10;
+  }
+  set x [wal_frame_count test.db-wal 1024]
+  if {[permutation]=="memsubsys1"} {
+    if {$x==4251 || $x==4290} {set x 4056}
+  }
+  set x
+} 4056
+
+for {set i 1} {$i < 50} {incr i} {
+
+  do_test wal3-1.$i.1 {
+    set str [a_string 800]
+    execsql { UPDATE t1 SET x = $str WHERE rowid = $i }
+    lappend L [wal_frame_count test.db-wal 1024]
+    execsql {
+      BEGIN;
+        INSERT INTO t1 SELECT a_string(800) FROM t1 LIMIT 100;
+      ROLLBACK;
+      PRAGMA integrity_check;
+    }
+  } {ok}
+
+  # Check that everything looks OK from the point of view of an 
+  # external connection.
+  #
+  sqlite3 db2 test.db
+  do_test wal3-1.$i.2 {
+    execsql { SELECT count(*) FROM t1 } db2
+  } 4018
+  do_test wal3-1.$i.3 {
+    execsql { SELECT x FROM t1 WHERE rowid = $i }
+  } $str
+  do_test wal3-1.$i.4 {
+    execsql { PRAGMA integrity_check } db2
+  } {ok}
+  db2 close
+  
+  # Check that the file-system in its current state can be recovered.
+  # 
+  forcecopy test.db test2.db
+  forcecopy test.db-wal test2.db-wal
+  forcedelete test2.db-journal
+  sqlite3 db2 test2.db
+  do_test wal3-1.$i.5 {
+    execsql { SELECT count(*) FROM t1 } db2
+  } 4018
+  do_test wal3-1.$i.6 {
+    execsql { SELECT x FROM t1 WHERE rowid = $i }
+  } $str
+  do_test wal3-1.$i.7 {
+    execsql { PRAGMA integrity_check } db2
+  } {ok}
+  db2 close
+}
+
+proc byte_is_zero {file offset} {
+  if {[file size test.db] <= $offset} { return 1 }
+  expr { [hexio_read $file $offset 1] == "00" }
+}
+
+do_multiclient_test i {
+
+  set testname(1) multiproc
+  set testname(2) singleproc
+  set tn $testname($i)
+
+  do_test wal3-2.$tn.1 {
+    sql1 { 
+      PRAGMA page_size = 1024;
+      PRAGMA journal_mode = WAL;
+    }
+    sql1 {
+      CREATE TABLE t1(a, b);
+      INSERT INTO t1 VALUES(1, 'one');
+      BEGIN;
+        SELECT * FROM t1;
+    }
+  } {1 one}
+  do_test wal3-2.$tn.2 {
+    sql2 {
+      CREATE TABLE t2(a, b);
+      INSERT INTO t2 VALUES(2, 'two');
+      BEGIN;
+        SELECT * FROM t2;
+    }
+  } {2 two}
+  do_test wal3-2.$tn.3 {
+    sql3 {
+      CREATE TABLE t3(a, b);
+      INSERT INTO t3 VALUES(3, 'three');
+      BEGIN;
+        SELECT * FROM t3;
+    }
+  } {3 three}
+
+  # Try to checkpoint the database using [db]. It should be possible to
+  # checkpoint everything except the table added by [db3] (checkpointing
+  # these frames would clobber the snapshot currently being used by [db2]).
+  #
+  # After [db2] has committed, a checkpoint can copy the entire log to the
+  # database file. Checkpointing after [db3] has committed is therefore a
+  # no-op, as the entire log has already been backfilled.
+  #
+  do_test wal3-2.$tn.4 {
+    sql1 {
+      COMMIT;
+      PRAGMA wal_checkpoint;
+    }
+    byte_is_zero test.db [expr $AUTOVACUUM ? 4*1024 : 3*1024]
+  } {1}
+  do_test wal3-2.$tn.5 {
+    sql2 {
+      COMMIT;
+      PRAGMA wal_checkpoint;
+    }
+    list [byte_is_zero test.db [expr $AUTOVACUUM ? 4*1024 : 3*1024]]   \
+         [byte_is_zero test.db [expr $AUTOVACUUM ? 5*1024 : 4*1024]]
+  } {0 1}
+  do_test wal3-2.$tn.6 {
+    sql3 {
+      COMMIT;
+      PRAGMA wal_checkpoint;
+    }
+    list [byte_is_zero test.db [expr $AUTOVACUUM ? 4*1024 : 3*1024]]   \
+         [byte_is_zero test.db [expr $AUTOVACUUM ? 5*1024 : 4*1024]]
+  } {0 1}
+}
+catch {db close}
+
+#-------------------------------------------------------------------------
+# Test that that for the simple test:
+#
+#   CREATE TABLE x(y);
+#   INSERT INTO x VALUES('z');
+#   PRAGMA wal_checkpoint;
+#
+# in WAL mode the xSync method is invoked as expected for each of
+# synchronous=off, synchronous=normal and synchronous=full.
+#
+foreach {tn syncmode synccount} {
+  1 off     
+    {}
+  2 normal  
+    {test.db-wal normal test.db normal}
+  3 full    
+    {test.db-wal normal test.db-wal normal test.db-wal normal test.db normal}
+} {
+
+  proc sync_counter {args} { 
+    foreach {method filename id flags} $args break
+    lappend ::syncs [file tail $filename] $flags
+  }
+  do_test wal3-3.$tn {
+    forcedelete test.db test.db-wal test.db-journal
+  
+    testvfs T
+    T filter {} 
+    T script sync_counter
+    sqlite3 db test.db -vfs T
+  
+    execsql "PRAGMA synchronous = $syncmode"
+    execsql "PRAGMA checkpoint_fullfsync = 0"
+    execsql { PRAGMA journal_mode = WAL }
+    execsql { CREATE TABLE filler(a,b,c); }
+
+    set ::syncs [list]
+    T filter xSync
+    execsql {
+      CREATE TABLE x(y);
+      INSERT INTO x VALUES('z');
+      PRAGMA wal_checkpoint;
+    }
+    T filter {}
+    set ::syncs
+  } $synccount
+
+  db close
+  T delete
+}
+
+
+#-------------------------------------------------------------------------
+# Only one client may run recovery at a time. Test this mechanism.
+#
+# When client-2 tries to open a read transaction while client-1 is 
+# running recovery, it fails to obtain a lock on an aReadMark[] slot
+# (because they are all locked by recovery). It then tries to obtain
+# a shared lock on the RECOVER lock to see if there really is a
+# recovery running or not.
+#
+# This block of tests checks the effect of an SQLITE_BUSY or SQLITE_IOERR
+# being returned when client-2 attempts a shared lock on the RECOVER byte.
+#
+# An SQLITE_BUSY should be converted to an SQLITE_BUSY_RECOVERY. An
+# SQLITE_IOERR should be returned to the caller.
+#
+do_test wal3-5.1 {
+  faultsim_delete_and_reopen
+  execsql {
+    PRAGMA journal_mode = WAL;
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, 2);
+    INSERT INTO t1 VALUES(3, 4);
+  }
+  faultsim_save_and_close
+} {}
+
+testvfs T -default 1
+T script method_callback
+
+proc method_callback {method args} {
+  if {$method == "xShmBarrier"} {
+    incr ::barrier_count
+    if {$::barrier_count == 2} {
+      # This code is executed within the xShmBarrier() callback invoked
+      # by the client running recovery as part of writing the recovered
+      # wal-index header. If a second client attempts to access the 
+      # database now, it reads a corrupt (partially written) wal-index
+      # header. But it cannot even get that far, as the first client
+      # is still holding all the locks (recovery takes an exclusive lock
+      # on *all* db locks, preventing access by any other client).
+      #
+      # If global variable ::wal3_do_lockfailure is non-zero, then set
+      # things up so that an IO error occurs within an xShmLock() callback
+      # made by the second client (aka [db2]).
+      #
+      sqlite3 db2 test.db
+      if { $::wal3_do_lockfailure } { T filter xShmLock }
+      set ::testrc [ catch { db2 eval "SELECT * FROM t1" } ::testmsg ]
+      T filter {}
+      db2 close
+    }
+  }
+
+  if {$method == "xShmLock"} {
+    foreach {file handle spec} $args break
+    if { $spec == "2 1 lock shared" } {
+      return SQLITE_IOERR
+    }
+  }
+
+  return SQLITE_OK
+}
+
+# Test a normal SQLITE_BUSY return.
+#
+T filter xShmBarrier
+set testrc ""
+set testmsg ""
+set barrier_count 0
+set wal3_do_lockfailure 0
+do_test wal3-5.2 {
+  faultsim_restore_and_reopen
+  execsql { SELECT * FROM t1 }
+} {1 2 3 4}
+do_test wal3-5.3 {
+  list $::testrc $::testmsg
+} {1 {database is locked}}
+db close
+
+# Test an SQLITE_IOERR return.
+#
+T filter xShmBarrier
+set barrier_count 0
+set wal3_do_lockfailure 1
+set testrc ""
+set testmsg ""
+do_test wal3-5.4 {
+  faultsim_restore_and_reopen
+  execsql { SELECT * FROM t1 }
+} {1 2 3 4}
+do_test wal3-5.5 {
+  list $::testrc $::testmsg
+} {1 {disk I/O error}}
+
+db close
+T delete
+
+#-------------------------------------------------------------------------
+# When opening a read-transaction on a database, if the entire log has
+# already been copied to the database file, the reader grabs a special
+# kind of read lock (on aReadMark[0]). This set of test cases tests the 
+# outcome of the following:
+#
+#   + The reader discovering that between the time when it determined 
+#     that the log had been completely backfilled and the lock is obtained
+#     that a writer has written to the log. In this case the reader should
+#     acquire a different read-lock (not aReadMark[0]) and read the new
+#     snapshot.
+#
+#   + The attempt to obtain the lock on aReadMark[0] fails with SQLITE_BUSY.
+#     This can happen if a checkpoint is ongoing. In this case also simply
+#     obtain a different read-lock.
+#
+catch {db close}
+testvfs T -default 1
+do_test wal3-6.1.1 {
+  forcedelete test.db test.db-journal test.db wal
+  sqlite3 db test.db
+  execsql { PRAGMA auto_vacuum = off }
+  execsql { PRAGMA journal_mode = WAL }
+  execsql {
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES('o', 't');
+    INSERT INTO t1 VALUES('t', 'f');
+  }
+} {}
+do_test wal3-6.1.2 {
+  sqlite3 db2 test.db
+  sqlite3 db3 test.db
+  execsql { BEGIN ; SELECT * FROM t1 } db3
+} {o t t f}
+do_test wal3-6.1.3 {
+  execsql { PRAGMA wal_checkpoint } db2
+} {0 4 4}
+
+# At this point the log file has been fully checkpointed. However, 
+# connection [db3] holds a lock that prevents the log from being wrapped.
+# Test case 3.6.1.4 has [db] attempt a read-lock on aReadMark[0]. But
+# as it is obtaining the lock, [db2] appends to the log file.
+#
+T filter xShmLock
+T script lock_callback
+proc lock_callback {method file handle spec} {
+  if {$spec == "3 1 lock shared"} {
+    # This is the callback for [db] to obtain the read lock on aReadMark[0].
+    # Disable future callbacks using [T filter {}] and write to the log
+    # file using [db2]. [db3] is preventing [db2] from wrapping the log
+    # here, so this is an append.
+    T filter {}
+    db2 eval { INSERT INTO t1 VALUES('f', 's') }
+  }
+  return SQLITE_OK
+}
+do_test wal3-6.1.4 {
+  execsql {
+    BEGIN;
+    SELECT * FROM t1;
+  }
+} {o t t f f s}
+
+# [db] should be left holding a read-lock on some slot other than 
+# aReadMark[0]. Test this by demonstrating that the read-lock is preventing
+# the log from being wrapped.
+#
+do_test wal3-6.1.5 {
+  db3 eval COMMIT
+  db2 eval { PRAGMA wal_checkpoint }
+  set sz1 [file size test.db-wal]
+  db2 eval { INSERT INTO t1 VALUES('s', 'e') }
+  set sz2 [file size test.db-wal]
+  expr {$sz2>$sz1}
+} {1}
+
+# Test that if [db2] had not interfered when [db] was trying to grab
+# aReadMark[0], it would have been possible to wrap the log in 3.6.1.5.
+#
+do_test wal3-6.1.6 {
+  execsql { COMMIT }
+  execsql { PRAGMA wal_checkpoint } db2
+  execsql {
+    BEGIN;
+    SELECT * FROM t1;
+  }
+} {o t t f f s s e}
+do_test wal3-6.1.7 {
+  db2 eval { PRAGMA wal_checkpoint }
+  set sz1 [file size test.db-wal]
+  db2 eval { INSERT INTO t1 VALUES('n', 't') }
+  set sz2 [file size test.db-wal]
+  expr {$sz2==$sz1}
+} {1}
+
+db3 close
+db2 close
+db close
+
+do_test wal3-6.2.1 {
+  forcedelete test.db test.db-journal test.db wal
+  sqlite3 db test.db
+  sqlite3 db2 test.db
+  execsql { PRAGMA auto_vacuum = off }
+  execsql { PRAGMA journal_mode = WAL }
+  execsql {
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES('h', 'h');
+    INSERT INTO t1 VALUES('l', 'b');
+  }
+} {}
+
+T filter xShmLock
+T script lock_callback
+proc lock_callback {method file handle spec} {
+  if {$spec == "3 1 unlock exclusive"} {
+    T filter {}
+    set ::R [db2 eval {
+      BEGIN;
+      SELECT * FROM t1;
+    }]
+  }
+}
+do_test wal3-6.2.2 {
+  execsql { PRAGMA wal_checkpoint }
+} {0 4 4}
+do_test wal3-6.2.3 {
+  set ::R
+} {h h l b}
+do_test wal3-6.2.4 {
+  set sz1 [file size test.db-wal]
+  execsql { INSERT INTO t1 VALUES('b', 'c'); }
+  set sz2 [file size test.db-wal]
+  expr {$sz2 > $sz1}
+} {1}
+do_test wal3-6.2.5 {
+  db2 eval { COMMIT }
+  execsql { PRAGMA wal_checkpoint }
+  set sz1 [file size test.db-wal]
+  execsql { INSERT INTO t1 VALUES('n', 'o'); }
+  set sz2 [file size test.db-wal]
+  expr {$sz2 == $sz1}
+} {1}
+ 
+db2 close
+db close
+T delete
+
+#-------------------------------------------------------------------------
+# When opening a read-transaction on a database, if the entire log has
+# not yet been copied to the database file, the reader grabs a read
+# lock on aReadMark[x], where x>0. The following test cases experiment
+# with the outcome of the following:
+#
+#   + The reader discovering that between the time when it read the
+#     wal-index header and the lock was obtained that a writer has 
+#     written to the log. In this case the reader should re-read the 
+#     wal-index header and lock a snapshot corresponding to the new 
+#     header.
+#
+#   + The value in the aReadMark[x] slot has been modified since it was
+#     read.
+#
+catch {db close}
+testvfs T -default 1
+do_test wal3-7.1.1 {
+  forcedelete test.db test.db-journal test.db wal
+  sqlite3 db test.db
+  execsql {
+    PRAGMA journal_mode = WAL;
+    CREATE TABLE blue(red PRIMARY KEY, green);
+  }
+} {wal}
+
+T script method_callback
+T filter xOpen
+proc method_callback {method args} {
+  if {$method == "xOpen"} { return "reader" }
+}
+do_test wal3-7.1.2 {
+  sqlite3 db2 test.db
+  execsql { SELECT * FROM blue } db2
+} {}
+
+T filter xShmLock
+set ::locks [list]
+proc method_callback {method file handle spec} {
+  if {$handle != "reader" } { return }
+  if {$method == "xShmLock"} {
+    catch { execsql { INSERT INTO blue VALUES(1, 2) } }
+    catch { execsql { INSERT INTO blue VALUES(3, 4) } }
+  }
+  lappend ::locks $spec
+}
+do_test wal3-7.1.3 {
+  execsql { SELECT * FROM blue } db2
+} {1 2 3 4}
+do_test wal3-7.1.4 {
+  set ::locks
+} {{4 1 lock shared} {4 1 unlock shared} {5 1 lock shared} {5 1 unlock shared}}
+
+set ::locks [list]
+proc method_callback {method file handle spec} {
+  if {$handle != "reader" } { return }
+  if {$method == "xShmLock"} {
+    catch { execsql { INSERT INTO blue VALUES(5, 6) } }
+  }
+  lappend ::locks $spec
+}
+do_test wal3-7.2.1 {
+  execsql { SELECT * FROM blue } db2
+} {1 2 3 4 5 6}
+do_test wal3-7.2.2 {
+  set ::locks
+} {{5 1 lock shared} {5 1 unlock shared} {4 1 lock shared} {4 1 unlock shared}}
+
+db close
+db2 close
+T delete
+
+
+#-------------------------------------------------------------------------
+# When a connection opens a read-lock on the database, it searches for
+# an aReadMark[] slot that is already set to the mxFrame value for the
+# new transaction. If it cannot find one, it attempts to obtain an 
+# exclusive lock on an aReadMark[] slot for the purposes of modifying
+# the value, then drops back to a shared-lock for the duration of the
+# transaction.
+#
+# This test case verifies that if an exclusive lock cannot be obtained
+# on any aReadMark[] slot (because there are already several readers),
+# the client takes a shared-lock on a slot without modifying the value
+# and continues.
+#
+set nConn 50
+if { [string match *BSD $tcl_platform(os)] } { set nConn 25 }
+do_test wal3-9.0 {
+  forcedelete test.db test.db-journal test.db wal
+  sqlite3 db test.db
+  execsql {
+    PRAGMA page_size = 1024;
+    PRAGMA journal_mode = WAL;
+    CREATE TABLE whoami(x);
+    INSERT INTO whoami VALUES('nobody');
+  }
+} {wal}
+for {set i 0} {$i < $nConn} {incr i} {
+  set c db$i
+  do_test wal3-9.1.$i {
+    sqlite3 $c test.db
+    execsql { UPDATE whoami SET x = $c }
+    execsql {
+      BEGIN;
+      SELECT * FROM whoami
+    } $c
+  } $c
+}
+for {set i 0} {$i < $nConn} {incr i} {
+  set c db$i
+  do_test wal3-9.2.$i {
+    execsql { SELECT * FROM whoami } $c
+  } $c
+}
+
+set sz [expr 1024 * (2+$AUTOVACUUM)]
+do_test wal3-9.3 {
+  for {set i 0} {$i < ($nConn-1)} {incr i} { db$i close }
+  execsql { PRAGMA wal_checkpoint } 
+  byte_is_zero test.db [expr $sz-1024]
+} {1}
+do_test wal3-9.4 {
+  db[expr $nConn-1] close
+  execsql { PRAGMA wal_checkpoint } 
+  set sz2 [file size test.db]
+  byte_is_zero test.db [expr $sz-1024]
+} {0}
+
+do_multiclient_test tn {
+  do_test wal3-10.$tn.1 {
+    sql1 {
+      PRAGMA page_size = 1024;
+      CREATE TABLE t1(x);
+      PRAGMA journal_mode = WAL;
+      PRAGMA wal_autocheckpoint = 100000;
+      BEGIN;
+        INSERT INTO t1 VALUES(randomblob(800));
+        INSERT INTO t1 SELECT randomblob(800) FROM t1;   -- 2
+        INSERT INTO t1 SELECT randomblob(800) FROM t1;   -- 4
+        INSERT INTO t1 SELECT randomblob(800) FROM t1;   -- 8
+        INSERT INTO t1 SELECT randomblob(800) FROM t1;   -- 16
+        INSERT INTO t1 SELECT randomblob(800) FROM t1;   -- 32
+        INSERT INTO t1 SELECT randomblob(800) FROM t1;   -- 64
+        INSERT INTO t1 SELECT randomblob(800) FROM t1;   -- 128
+        INSERT INTO t1 SELECT randomblob(800) FROM t1;   -- 256
+        INSERT INTO t1 SELECT randomblob(800) FROM t1;   -- 512
+        INSERT INTO t1 SELECT randomblob(800) FROM t1;   -- 1024
+        INSERT INTO t1 SELECT randomblob(800) FROM t1;   -- 2048
+        INSERT INTO t1 SELECT randomblob(800) FROM t1;   -- 4096
+        INSERT INTO t1 SELECT randomblob(800) FROM t1;   -- 8192
+      COMMIT;
+      CREATE INDEX i1 ON t1(x);
+    }
+
+    expr {[file size test.db-wal] > [expr 1032*9000]}
+  } 1
+
+  do_test wal3-10.$tn.2 {
+    sql2 {PRAGMA integrity_check}
+  } {ok}
+}
+
+finish_test
diff --git a/test/wal4.test b/test/wal4.test
new file mode 100644
index 0000000000000000000000000000000000000000..c7a4381341741db00f2f2a026a4230f48b543b79
--- /dev/null
+++ b/test/wal4.test
@@ -0,0 +1,64 @@
+# 2010 July 1
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# Verify that an empty database and a non-empty WAL file do not
+# result in database corruption
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+ifcapable !wal {finish_test ; return }
+
+do_test wal4-1.1 {
+  execsql {
+    PRAGMA journal_mode=WAL;
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(1);
+    INSERT INTO t1 VALUES(2);
+    SELECT x FROM t1 ORDER BY x;
+  }
+} {wal 1 2}
+
+do_test wal4-1.2 {
+  # Save a copy of the file-system containing the wal and wal-index files 
+  # only (no database file).
+  faultsim_save_and_close
+  forcedelete sv_test.db
+} {}
+
+do_test wal4-1.3 {
+  faultsim_restore_and_reopen
+  catchsql { SELECT * FROM t1 }
+} {1 {no such table: t1}}
+
+do_faultsim_test wal4-2 -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { SELECT name FROM sqlite_master }
+} -test {
+  # Result should be zero rows (empty db file).
+  #
+  faultsim_test_result {0 {}}
+
+  # If the SELECT finished successfully, the WAL file should have been
+  # deleted. In no case should the database file have been written, so
+  # it should still be zero bytes in size regardless of whether or not
+  # a fault was injected. Test these assertions:
+  #
+  if { $testrc==0 && [file exists test.db-wal] } { 
+    error "Wal file was not deleted"
+  }
+  if { [file size test.db]!=0 } { 
+    error "Db file grew to [file size test.db] bytes"
+  }
+}
+
+finish_test
diff --git a/test/wal5.test b/test/wal5.test
new file mode 100644
index 0000000000000000000000000000000000000000..50c517286a9d778a20c2c06656e054cc84d47934
--- /dev/null
+++ b/test/wal5.test
@@ -0,0 +1,478 @@
+# 2010 April 13
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the operation of "blocking-checkpoint"
+# operations.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+source $testdir/wal_common.tcl
+ifcapable !wal {finish_test ; return }
+do_not_use_codec
+
+set testprefix wal5
+
+proc db_page_count  {{file test.db}} { expr [file size $file] / 1024 }
+proc wal_page_count {{file test.db}} { wal_frame_count ${file}-wal 1024 }
+
+
+# A checkpoint may be requested either using the C API or by executing
+# an SQL PRAGMA command. To test both methods, all tests in this file are 
+# run twice - once using each method to request checkpoints.
+#
+foreach {testprefix do_wal_checkpoint} {
+
+  wal5-pragma {
+    proc do_wal_checkpoint { dbhandle args } {
+      array set a $args
+      foreach key [array names a] {
+        if {[lsearch {-mode -db} $key]<0} { error "unknown switch: $key" }
+      }
+
+      set sql "PRAGMA "
+      if {[info exists a(-db)]} { append sql "$a(-db)." }
+      append sql "wal_checkpoint"
+      if {[info exists a(-mode)]} { append sql " = $a(-mode)" }
+
+      uplevel [list $dbhandle eval $sql]
+    }
+  }
+
+  wal5-capi {
+    proc do_wal_checkpoint { dbhandle args } {
+      set a(-mode) passive
+      array set a $args
+      foreach key [array names a] {
+        if {[lsearch {-mode -db} $key]<0} { error "unknown switch: $key" }
+      }
+
+      set vals {restart full truncate}
+      if {[lsearch -exact $vals $a(-mode)]<0} { set a(-mode) passive }
+
+      set cmd [list sqlite3_wal_checkpoint_v2 $dbhandle $a(-mode)]
+      if {[info exists a(-db)]} { lappend sql $a(-db) }
+
+      uplevel $cmd
+    }
+  }
+} {
+
+  eval $do_wal_checkpoint
+
+  do_multiclient_test tn {
+
+    set ::nBusyHandler 0
+    set ::busy_handler_script ""
+    proc busyhandler {n} {
+      incr ::nBusyHandler 
+      eval $::busy_handler_script
+      return 0
+    }
+
+    proc reopen_all {} {
+      code1 {db close}
+      code2 {db2 close}
+      code3 {db3 close}
+
+      code1 {sqlite3 db test.db}
+      code2 {sqlite3 db2 test.db}
+      code3 {sqlite3 db3 test.db}
+
+      sql1  { PRAGMA synchronous = NORMAL }
+      code1 { db busy busyhandler }
+    }
+
+    do_test 1.$tn.1 {
+      reopen_all
+      sql1 {
+        PRAGMA page_size = 1024;
+        PRAGMA auto_vacuum = 0;
+        CREATE TABLE t1(x, y);
+        PRAGMA journal_mode = WAL;
+        INSERT INTO t1 VALUES(1, zeroblob(1200));
+        INSERT INTO t1 VALUES(2, zeroblob(1200));
+        INSERT INTO t1 VALUES(3, zeroblob(1200));
+      }
+      expr [file size test.db] / 1024
+    } {2}
+
+    # Have connection 2 grab a read-lock on the current snapshot.
+    do_test 1.$tn.2 { sql2 { BEGIN; SELECT x FROM t1 } } {1 2 3}
+
+    # Attempt a checkpoint.
+    do_test 1.$tn.3 {
+      code1 { do_wal_checkpoint db }
+      list [db_page_count] [wal_page_count]
+    } {5 9}
+
+    # Write to the db again. The log cannot wrap because of the lock still
+    # held by connection 2. The busy-handler has not yet been invoked.
+    do_test 1.$tn.4 {
+      sql1 { INSERT INTO t1 VALUES(4, zeroblob(1200)) }
+      list [db_page_count] [wal_page_count] $::nBusyHandler
+    } {5 12 0}
+
+    # Now do a blocking-checkpoint. Set the busy-handler up so that connection
+    # 2 releases its lock on the 6th invocation. The checkpointer should then
+    # proceed to checkpoint the entire log file. Next write should go to the 
+    # start of the log file.
+    #
+    set ::busy_handler_script { if {$n==5} { sql2 COMMIT } }
+    do_test 1.$tn.5 {
+      code1 { do_wal_checkpoint db -mode restart }
+      list [db_page_count] [wal_page_count] $::nBusyHandler
+    } {6 12 6}
+    do_test 1.$tn.6 {
+      set ::nBusyHandler 0
+      sql1 { INSERT INTO t1 VALUES(5, zeroblob(1200)) }
+      list [db_page_count] [wal_page_count] $::nBusyHandler
+    } {6 12 0}
+
+    do_test 1.$tn.7 {
+      reopen_all
+      list [db_page_count] [wal_page_count] $::nBusyHandler
+    } [expr {[nonzero_reserved_bytes]?"/# # 0/":"7 0 0"}]
+
+    do_test 1.$tn.8  { sql2 { BEGIN ; SELECT x FROM t1 } } {1 2 3 4 5}
+    do_test 1.$tn.9  {
+      sql1 { INSERT INTO t1 VALUES(6, zeroblob(1200)) }
+      list [db_page_count] [wal_page_count] $::nBusyHandler
+    } [expr {[nonzero_reserved_bytes]?"/# # #/":"7 5 0"}]
+    do_test 1.$tn.10 { sql3 { BEGIN ; SELECT x FROM t1 } } {1 2 3 4 5 6}
+
+    set ::busy_handler_script { 
+      if {$n==5} { sql2 COMMIT } 
+      if {$n==6} { set ::db_file_size [db_page_count] }
+      if {$n==7} { sql3 COMMIT }
+    }
+    do_test 1.$tn.11 {
+      code1 { do_wal_checkpoint db -mode restart }
+      list [db_page_count] [wal_page_count] $::nBusyHandler
+    } [expr {[nonzero_reserved_bytes]?"/# # #/":"10 5 8"}]
+    do_test 1.$tn.12 { set ::db_file_size } 10
+  }
+
+  #-------------------------------------------------------------------------
+  # This block of tests explores checkpoint operations on more than one 
+  # database file.
+  #
+  proc setup_and_attach_aux {} {
+    sql1 { ATTACH 'test.db2' AS aux }
+    sql2 { ATTACH 'test.db2' AS aux }
+    sql3 { ATTACH 'test.db2' AS aux }
+    sql1 {
+      PRAGMA aux.auto_vacuum = 0;
+      PRAGMA main.auto_vacuum = 0;
+      PRAGMA main.page_size=1024; PRAGMA main.journal_mode=WAL;
+      PRAGMA aux.page_size=1024;  PRAGMA aux.journal_mode=WAL;
+    }
+  }
+
+  proc file_page_counts {} {
+    list [db_page_count  test.db ] \
+         [wal_page_count test.db ] \
+         [db_page_count  test.db2] \
+         [wal_page_count test.db2]
+  }
+
+  # Test that executing "PRAGMA wal_checkpoint" checkpoints all attached
+  # databases, not just the main db.  In capi mode, check that this is
+  # true if a NULL pointer is passed to wal_checkpoint_v2() in place of a 
+  # database name.
+  do_multiclient_test tn {
+    setup_and_attach_aux
+    do_test 2.1.$tn.1 {
+      sql1 {
+        CREATE TABLE t1(a, b);
+        INSERT INTO t1 VALUES(1, 2);
+        CREATE TABLE aux.t2(a, b);
+        INSERT INTO t2 VALUES(1, 2);
+      }
+    } {}
+    do_test 2.2.$tn.2 { file_page_counts } {1 3 1 3}
+    do_test 2.1.$tn.3 { code1 { do_wal_checkpoint db } } {0 3 3}
+    do_test 2.1.$tn.4 { file_page_counts } {2 3 2 3}
+  }
+
+  do_multiclient_test tn {
+    setup_and_attach_aux
+    do_test 2.2.$tn.1 {
+      execsql {
+        CREATE TABLE t1(a, b);
+        INSERT INTO t1 VALUES(1, 2);
+        CREATE TABLE aux.t2(a, b);
+        INSERT INTO t2 VALUES(1, 2);
+        INSERT INTO t2 VALUES(3, 4);
+      }
+    } {}
+    do_test 2.2.$tn.2 { file_page_counts } {1 3 1 4}
+    do_test 2.2.$tn.3 { sql2 { BEGIN; SELECT * FROM t1 } } {1 2}
+    do_test 2.2.$tn.4 { code1 { do_wal_checkpoint db -mode restart } } {1 3 3}
+    do_test 2.2.$tn.5 { file_page_counts } {2 3 2 4}
+  }
+
+  do_multiclient_test tn {
+    setup_and_attach_aux
+    do_test 2.3.$tn.1 {
+      execsql {
+        CREATE TABLE t1(a, b);
+        INSERT INTO t1 VALUES(1, 2);
+        CREATE TABLE aux.t2(a, b);
+        INSERT INTO t2 VALUES(1, 2);
+      }
+    } {}
+    do_test 2.3.$tn.2 { file_page_counts } {1 3 1 3}
+    do_test 2.3.$tn.3 { sql2 { BEGIN; SELECT * FROM t1 } } {1 2}
+    do_test 2.3.$tn.4 { sql1 { INSERT INTO t1 VALUES(3, 4) } } {}
+    do_test 2.3.$tn.5 { sql1 { INSERT INTO t2 VALUES(3, 4) } } {}
+    do_test 2.3.$tn.6 { file_page_counts } {1 4 1 4}
+    do_test 2.3.$tn.7 { code1 { do_wal_checkpoint db -mode full } } {1 4 3}
+
+    # The checkpoint above only writes page 1 of the db file. The other
+    # page (page 2) is locked by the read-transaction opened by the
+    # [sql2] commmand above. So normally, the db is 1 page in size here.
+    # However, in mmap() mode, the db is pre-allocated to 2 pages at the
+    # start of the checkpoint, even though page 2 cannot be written.
+    set nDb 2
+    if {[permutation]!="mmap"} {set nDb 1}
+    ifcapable !mmap {set nDb 1}
+    do_test 2.3.$tn.8 { file_page_counts } [list $nDb 4 2 4]
+  }
+
+  # Check that checkpoints block on the correct locks. And respond correctly
+  # if they cannot obtain those locks. There are three locks that a checkpoint
+  # may block on (in the following order):
+  #
+  #   1. The writer lock: FULL and RESTART checkpoints block until any writer
+  #      process releases its lock.
+  #
+  #   2. Readers using part of the log file. FULL and RESTART checkpoints block
+  #      until readers using part (but not all) of the log file have finished.
+  #
+  #   3. Readers using any of the log file. After copying data into the
+  #      database file, RESTART checkpoints block until readers using any part
+  #      of the log file have finished.
+  #
+  # This test case involves running a checkpoint while there exist other 
+  # processes holding all three types of locks.
+  #
+  foreach {tn1 checkpoint busy_on ckpt_expected expected} {
+    1   PASSIVE   -   {0 3 3}   -
+    2   TYPO      -   {0 3 3}   -
+
+    3   FULL      -   {0 4 4}   2
+    4   FULL      1   {1 3 3}   1
+    5   FULL      2   {1 4 3}   2
+    6   FULL      3   {0 4 4}   2
+
+    7   RESTART   -   {0 4 4}   3
+    8   RESTART   1   {1 3 3}   1
+    9   RESTART   2   {1 4 3}   2
+    10  RESTART   3   {1 4 4}   3
+
+    11  TRUNCATE  -   {0 0 0}   3
+    12  TRUNCATE  1   {1 3 3}   1
+    13  TRUNCATE  2   {1 4 3}   2
+    14  TRUNCATE  3   {1 4 4}   3
+
+  } {
+    do_multiclient_test tn {
+      setup_and_attach_aux
+
+      proc busyhandler {x} {
+        set ::max_busyhandler $x
+        if {$::busy_on!="-" && $x==$::busy_on} { return 1 }
+        switch -- $x {
+          1 { sql2 "COMMIT ; BEGIN ; SELECT * FROM t1" }
+          2 { sql3 "COMMIT" }
+          3 { sql2 "COMMIT" }
+        }
+        return 0
+      }
+      set ::max_busyhandler -
+
+      do_test 2.4.$tn1.$tn.1 {
+        sql1 {
+          CREATE TABLE t1(a, b);
+          INSERT INTO t1 VALUES(1, 2);
+        }
+        sql2 { BEGIN; INSERT INTO t1 VALUES(3, 4) }
+        sql3 { BEGIN; SELECT * FROM t1 }
+      } {1 2}
+
+      do_test 2.4.$tn1.$tn.2 {
+        code1 { db busy busyhandler }
+        code1 { do_wal_checkpoint db -mode [string tolower $checkpoint] }
+      } $ckpt_expected
+      do_test 2.4.$tn1.$tn.3 { set ::max_busyhandler } $expected
+    }
+  }
+
+
+  do_multiclient_test tn {
+
+    code1 $do_wal_checkpoint
+    code2 $do_wal_checkpoint
+    code3 $do_wal_checkpoint
+    
+    do_test 3.$tn.1 {
+      sql1 {
+        PRAGMA auto_vacuum = 0;
+        PRAGMA journal_mode = WAL;
+        PRAGMA synchronous = normal;
+        CREATE TABLE t1(x, y);
+      }
+
+      sql2 { PRAGMA journal_mode }
+      sql3 { PRAGMA journal_mode }
+    } {wal}
+
+    do_test 3.$tn.2 { code2 { do_wal_checkpoint db2 } } {0 2 2}
+
+    do_test 3.$tn.3 { code2 { do_wal_checkpoint db2 } } {0 2 2}
+
+    do_test 3.$tn.4 { code3 { do_wal_checkpoint db3 } } {0 2 2}
+
+    code1 {db  close}
+    code2 {db2 close}
+    code3 {db3 close}
+
+    code1 {sqlite3 db  test.db}
+    code2 {sqlite3 db2 test.db}
+    code3 {sqlite3 db3 test.db}
+
+    do_test 3.$tn.5 { sql3 { PRAGMA journal_mode } } {wal}
+
+    do_test 3.$tn.6 { code3 { do_wal_checkpoint db3 } } {0 0 0}
+  }
+
+  # Test SQLITE_CHECKPOINT_TRUNCATE.
+  #
+  do_multiclient_test tn {
+
+    code1 $do_wal_checkpoint
+    code2 $do_wal_checkpoint
+    code3 $do_wal_checkpoint
+
+    do_test 4.$tn.1 {
+      sql1 {
+        PRAGMA page_size = 1024;
+        PRAGMA auto_vacuum = 0;
+        PRAGMA journal_mode = WAL;
+        PRAGMA synchronous = normal;
+        CREATE TABLE t1(x, y);
+        CREATE INDEX i1 ON t1(x, y);
+        INSERT INTO t1 VALUES(1, 2);
+        INSERT INTO t1 VALUES(3, 4);
+      }
+      file size test.db-wal
+    } [wal_file_size 8 1024]
+
+    do_test 4.$tn.2 { do_wal_checkpoint db -mode truncate } {0 0 0}
+    do_test 4.$tn.3 { file size test.db-wal } 0
+
+    do_test 4.$tn.4 {
+      sql2 { SELECT * FROM t1 }
+    } {1 2 3 4}
+
+    do_test 4.$tn.5 {
+      sql2 { INSERT INTO t1 VALUES('a', 'b') }
+      file size test.db-wal
+    } [wal_file_size 2 1024]
+
+  }
+  
+  # Test that FULL, RESTART and TRUNCATE callbacks block on other clients
+  # and truncate the wal file as required even if the entire wal file has
+  # already been checkpointed when they are invoked.
+  #
+  do_multiclient_test tn {
+
+    code1 $do_wal_checkpoint
+    code2 $do_wal_checkpoint
+    code3 $do_wal_checkpoint
+
+    do_test 5.$tn.1 {
+      sql1 {
+        PRAGMA page_size = 1024;
+        PRAGMA auto_vacuum = 0;
+        PRAGMA journal_mode = WAL;
+        PRAGMA synchronous = normal;
+        CREATE TABLE t1(x, y);
+        CREATE INDEX i1 ON t1(x, y);
+        INSERT INTO t1 VALUES(1, 2);
+        INSERT INTO t1 VALUES(3, 4);
+        INSERT INTO t1 VALUES(5, 6);
+      }
+      file size test.db-wal
+    } [wal_file_size 10 1024]
+
+    do_test 5.$tn.2 { 
+      sql2 { BEGIN; SELECT * FROM t1 }
+    } {1 2 3 4 5 6}
+
+    do_test 5.$tn.3 { do_wal_checkpoint db -mode passive } {0 10 10}
+
+    do_test 5.$tn.4 { 
+      sql3 { BEGIN; INSERT INTO t1 VALUES(7, 8); }
+    } {}
+
+    do_test 5.$tn.5 { do_wal_checkpoint db -mode passive  } {0 10 10}
+    do_test 5.$tn.6 { do_wal_checkpoint db -mode full     } {1 10 10}
+
+    do_test 5.$tn.7 { sql3 { ROLLBACK } } {}
+
+    do_test 5.$tn.8 { do_wal_checkpoint db -mode full     } {0 10 10}
+    do_test 5.$tn.9 { do_wal_checkpoint db -mode truncate } {1 10 10}
+
+    do_test 5.$tn.10 { 
+      file size test.db-wal
+    } [wal_file_size 10 1024]
+
+    proc xBusyHandler {n} { sql2 { COMMIT } ; return 0 }
+    db busy xBusyHandler
+
+    do_test 5.$tn.11 { do_wal_checkpoint db -mode truncate } {0 0 0}
+    do_test 5.$tn.12 { file size test.db-wal } 0
+
+    do_test 5.$tn.13 {
+      sql1 {
+        INSERT INTO t1 VALUES(7, 8);
+        INSERT INTO t1 VALUES(9, 10);
+        SELECT * FROM t1;
+      }
+    } {1 2 3 4 5 6 7 8 9 10}
+
+    do_test 5.$tn.14 { 
+      sql2 { BEGIN; SELECT * FROM t1 }
+    } {1 2 3 4 5 6 7 8 9 10}
+
+    proc xBusyHandler {n} { return 1 }
+    do_test 5.$tn.15 { do_wal_checkpoint db -mode truncate } {1 4 4}
+    do_test 5.$tn.16 { file size test.db-wal } [wal_file_size 4 1024]
+
+    do_test 5.$tn.17 { do_wal_checkpoint db -mode restart } {1 4 4}
+
+    proc xBusyHandler {n} { sql2 { COMMIT } ; return 0 }
+    db busy xBusyHandler
+    do_test 5.$tn.18 { do_wal_checkpoint db -mode restart } {0 4 4}
+    do_test 5.$tn.19 { file size test.db-wal } [wal_file_size 4 1024]
+
+    do_test 5.$tn.20 { do_wal_checkpoint db -mode truncate } {0 0 0}
+    do_test 5.$tn.21 { file size test.db-wal } 0
+  }
+
+}
+
+
+finish_test
diff --git a/test/wal6.test b/test/wal6.test
new file mode 100644
index 0000000000000000000000000000000000000000..9bbc58409d623642547a595e066e3783c9e6862e
--- /dev/null
+++ b/test/wal6.test
@@ -0,0 +1,269 @@
+# 2010 December 1
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the operation of the library in
+# "PRAGMA journal_mode=WAL" mode.
+#
+
+set testdir [file dirname $argv0]
+set testprefix wal6
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+source $testdir/wal_common.tcl
+source $testdir/malloc_common.tcl
+ifcapable !wal {finish_test ; return }
+
+#-------------------------------------------------------------------------
+# Changing to WAL mode in one connection forces the change in others.
+#
+db close
+forcedelete test.db
+
+set all_journal_modes {delete persist truncate memory off}
+foreach jmode $all_journal_modes {
+
+  do_test wal6-1.0.$jmode {
+    sqlite3 db test.db
+    execsql "PRAGMA journal_mode = $jmode;"
+  } $jmode
+
+  do_test wal6-1.1.$jmode {
+    execsql {
+      CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+      INSERT INTO t1 VALUES(1,2);
+      SELECT * FROM t1;
+    }
+  } {1 2}
+
+# Under Windows, you'll get an error trying to delete
+# a file this is already opened.  Close the first connection
+# so the other tests work.
+if {$tcl_platform(platform)=="windows"} {
+  if {$jmode=="persist" || $jmode=="truncate"} {
+    db close
+  }
+}
+
+  do_test wal6-1.2.$jmode {
+    sqlite3 db2 test.db
+    execsql {
+    PRAGMA journal_mode=WAL;
+    INSERT INTO t1 VALUES(3,4);
+    SELECT * FROM t1 ORDER BY a;
+    } db2
+  } {wal 1 2 3 4}
+
+if {$tcl_platform(platform)=="windows"} {
+  if {$jmode=="persist" || $jmode=="truncate"} {
+    sqlite3 db test.db
+  }
+}
+
+  do_test wal6-1.3.$jmode {
+    execsql {
+      SELECT * FROM t1 ORDER BY a;
+    }
+  } {1 2 3 4}
+
+  db close
+  db2 close
+  forcedelete test.db
+
+}
+
+#-------------------------------------------------------------------------
+# Test that SQLITE_BUSY_SNAPSHOT is returned as expected.
+#
+reset_db
+sqlite3 db2 test.db
+
+do_execsql_test 2.1 {
+  PRAGMA journal_mode = WAL;
+  CREATE TABLE t1(a PRIMARY KEY, b TEXT);
+  INSERT INTO t1 VALUES(1, 'one');
+  INSERT INTO t1 VALUES(2, 'two');
+  BEGIN;
+    SELECT * FROM t1;
+} {wal 1 one 2 two}
+
+do_test 2.2 {
+  execsql {
+    SELECT * FROM t1;
+    INSERT INTO t1 VALUES(3, 'three');
+  } db2
+} {1 one 2 two}
+
+do_catchsql_test 2.3 { 
+  INSERT INTO t1 VALUES('x', 'x') 
+} {1 {database is locked}}
+
+do_test 2.4 { 
+  list [sqlite3_errcode db] [sqlite3_extended_errcode db]
+} {SQLITE_BUSY SQLITE_BUSY_SNAPSHOT}
+
+do_execsql_test 2.5 {
+  SELECT * FROM t1;
+  COMMIT;
+  INSERT INTO t1 VALUES('x', 'x') 
+} {1 one 2 two}
+
+proc test3 {prefix} {
+  do_test $prefix.1 {
+    execsql { SELECT count(*) FROM t1 } 
+  } {0}
+  do_test $prefix.2 {
+    execsql { INSERT INTO t1 VALUES('x', 'x') } db2
+  } {}
+  do_test $prefix.3 {
+    execsql { INSERT INTO t1 VALUES('y', 'y') }
+  } {}
+  do_test $prefix.4 {
+    execsql { SELECT count(*) FROM t1 } 
+  } {2}
+}
+
+do_execsql_test 2.6.1 { DELETE FROM t1 }
+test3 2.6.2
+
+db func test3 test3
+do_execsql_test 2.6.3 { DELETE FROM t1 }
+db eval {SELECT test3('2.6.4')}
+
+do_test 2.x {
+  db2 close
+} {}
+
+#-------------------------------------------------------------------------
+# Check that if BEGIN IMMEDIATE fails, it does not leave the user with
+# an open read-transaction (unless one was already open before the BEGIN 
+# IMMEDIATE). Even if there are other active VMs.
+#
+
+proc test4 {prefix} {
+  do_test $prefix.1 {
+    catchsql { BEGIN IMMEDIATE }
+  } {1 {database is locked}}
+
+  do_test $prefix.2 {
+    execsql { COMMIT } db2
+  } {}
+
+  do_test $prefix.3 {
+    execsql { BEGIN IMMEDIATE }
+  } {}
+  do_test $prefix.4 {
+    execsql { COMMIT }
+  } {}
+}
+
+reset_db
+sqlite3 db2 test.db
+do_execsql_test 3.1 { 
+  PRAGMA journal_mode = WAL;
+  CREATE TABLE ab(a PRIMARY KEY, b);
+} {wal}
+
+do_test 3.2.1 { 
+  execsql { 
+    BEGIN;
+      INSERT INTO ab VALUES(1, 2);
+  } db2
+} {}
+test4 3.2.2
+
+db func test4 test4
+do_test 3.3.1 {
+  execsql { 
+    BEGIN;
+      INSERT INTO ab VALUES(3, 4);
+  } db2
+} {}
+
+db eval {SELECT test4('3.3.2')}
+
+do_test 3.x {
+  db2 close
+} {}
+
+#-------------------------------------------------------------------------
+# Check that if a wal file has been partially checkpointed, no frames are
+# read from the checkpointed part.
+#
+reset_db
+do_execsql_test 4.1 {
+  PRAGMA page_size = 1024;
+  PRAGMA journal_mode = wal;
+  CREATE TABLE t1(a, b);
+  CREATE TABLE t2(a, b);
+  PRAGMA wal_checkpoint = truncate;
+} {wal 0 0 0}
+
+do_test 4.2 {
+  execsql { INSERT INTO t1 VALUES(1, 2) }
+  file size test.db-wal
+} [wal_file_size 1 1024]
+
+do_test 4.3 {
+  sqlite3 db2 test.db
+  execsql { 
+    BEGIN;
+    INSERT INTO t2 VALUES(3, 4);
+  }
+  execsql { PRAGMA wal_checkpoint = passive } db2
+} {0 1 1}
+
+do_test 4.3 {
+  execsql { COMMIT }
+  db2 close
+  hexio_write test.db-wal 0 [string repeat 00 2000]
+  sqlite3 db2 test.db
+} {}
+
+do_test 4.4.1 { 
+  catchsql { SELECT * FROM t1 } db2 
+} {0 {1 2}}
+do_test 4.4.2 { 
+  catchsql { SELECT * FROM t2 } db2 
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+# Confirm that it is possible to get an SQLITE_BUSY_SNAPSHOT error from
+# "BEGIN EXCLUSIVE" if the connection already has an open read-transaction.
+#
+db close
+db2 close
+reset_db
+sqlite3 db2 test.db
+do_execsql_test 5.1 {
+  PRAGMA journal_mode = wal;
+  CREATE TABLE t1(x, y);
+  INSERT INTO t1 VALUES(1, 2);
+  INSERT INTO t1 VALUES(3, 4);
+} {wal}
+do_test 5.2 {
+  set res [list]
+  db eval {
+    SELECT * FROM t1
+  } {
+    if {$x==1} {
+      db2 eval { INSERT INTO t1 VALUES(5, 6) }
+    } 
+    if {$x==3} {
+      set res [catchsql {BEGIN EXCLUSIVE}]
+      lappend res [sqlite3_extended_errcode db]
+    } 
+  }
+  set res
+} {1 {database is locked} SQLITE_BUSY_SNAPSHOT}
+
+
+
+finish_test
diff --git a/test/wal64k.test b/test/wal64k.test
new file mode 100644
index 0000000000000000000000000000000000000000..8ff8e4b77c4d8a8467c05d56e7a0e9e05846c50c
--- /dev/null
+++ b/test/wal64k.test
@@ -0,0 +1,63 @@
+# 2010 April 13
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the operation of the library in
+# "PRAGMA journal_mode=WAL" mode.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix wal64k
+
+ifcapable !wal {finish_test ; return }
+
+if {$tcl_platform(platform) != "unix"} {
+  finish_test
+  return
+}
+
+db close
+test_syscall pagesize 65536
+sqlite3 db test.db
+
+do_execsql_test 1.0 { 
+  PRAGMA journal_mode = WAL;
+  CREATE TABLE t1(x);
+  CREATE INDEX i1 ON t1(x);
+} {wal}
+do_test 1.1 { file size test.db-shm } {65536}
+
+do_test 1.2 {
+  execsql BEGIN
+  while {[file size test.db-shm]==65536} {
+    execsql { INSERT INTO t1 VALUES( randstr(900,1100) ) }
+  }
+  execsql COMMIT
+  file size test.db-shm
+} {131072}
+
+integrity_check 1.3
+
+db close
+forcedelete test.db
+sqlite3 db test.db -vfs unix-excl
+do_execsql_test 2.1 {
+  PRAGMA page_size=512;
+  PRAGMA journal_mode=WAL;
+  CREATE TABLE t1(a,b);
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<8200)
+  INSERT INTO t1(a,b) SELECT x, zeroblob(300) FROM c;
+  PRAGMA integrity_check;
+} {wal ok}
+
+db close
+test_syscall pagesize -1
+finish_test
diff --git a/test/wal7.test b/test/wal7.test
new file mode 100644
index 0000000000000000000000000000000000000000..cacfaedacb57f679395f73d89280d49a07ed9693
--- /dev/null
+++ b/test/wal7.test
@@ -0,0 +1,118 @@
+# 2011 May 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the PRAGMA journal_size_limit when
+# in WAL mode.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable !wal {finish_test ; return }
+
+# Case 1:  No size limit.  Journal can get large.
+#
+do_test wal7-1.0 {
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+  db eval {
+    PRAGMA page_size=1024;
+    PRAGMA journal_mode=WAL;
+    PRAGMA wal_autocheckpoint=50;  -- 50 pages
+    CREATE TABLE t1(x, y UNIQUE);
+    INSERT INTO t1 VALUES(1,2);
+    INSERT INTO t1 VALUES(zeroblob(200000),4);
+    CREATE TABLE t2(z);
+    DELETE FROM t1;
+    INSERT INTO t2 SELECT x FROM t1;
+  }
+  expr {[file size test.db-wal]>50*1100}
+} 1
+do_test wal7-1.1 {
+  db eval {PRAGMA wal_checkpoint}
+  expr {[file size test.db-wal]>50*1100}
+} 1
+do_test wal7-1.2 {
+  db eval {INSERT INTO t2 VALUES('hi');}
+  expr {[file size test.db-wal]>50*1100}
+} 1
+
+# Case 2:  Size limit at half the autocheckpoint size.
+#
+do_test wal7-2.0 {
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+  db eval {
+    PRAGMA page_size=1024;
+    PRAGMA journal_mode=WAL;
+    PRAGMA wal_autocheckpoint=50;  -- 50 pages
+    PRAGMA journal_size_limit=25000;
+    CREATE TABLE t1(x, y UNIQUE);
+    INSERT INTO t1 VALUES(1,2);
+    INSERT INTO t1 VALUES(zeroblob(200000),4);
+    CREATE TABLE t2(z);
+    DELETE FROM t1;
+    INSERT INTO t2 VALUES(1);
+  }
+  file size test.db-wal
+} 25000
+
+
+# Case 3:  Size limit of zero.
+#
+do_test wal7-3.0 {
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+  db eval {
+    PRAGMA page_size=1024;
+    PRAGMA journal_mode=WAL;
+    PRAGMA wal_autocheckpoint=50;  -- 50 pages
+    PRAGMA journal_size_limit=0;
+    CREATE TABLE t1(x, y UNIQUE);
+    INSERT INTO t1 VALUES(1,2);
+    INSERT INTO t1 VALUES(zeroblob(200000),4);
+    CREATE TABLE t2(z);
+    DELETE FROM t1;
+    INSERT INTO t2 VALUES(1);
+  }
+  set sz [file size test.db-wal]
+  expr {$sz>0 && $sz<13700}
+} 1
+
+
+# Case 4:  Size limit set before going WAL
+#
+do_test wal7-4.0 {
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+  db eval {
+    PRAGMA page_size=1024;
+    PRAGMA journal_size_limit=25000;
+    PRAGMA journal_mode=WAL;
+    PRAGMA wal_autocheckpoint=50;  -- 50 pages
+    CREATE TABLE t1(x, y UNIQUE);
+    INSERT INTO t1 VALUES(1,2);
+    INSERT INTO t1 VALUES(zeroblob(200000),4);
+    CREATE TABLE t2(z);
+    DELETE FROM t1;
+    INSERT INTO t2 VALUES(1);
+  }
+  set sz [file size test.db-wal]
+} 25000
+
+
+
+
+
+finish_test
diff --git a/test/wal8.test b/test/wal8.test
new file mode 100644
index 0000000000000000000000000000000000000000..3e5a0c2617599a093181b231f88ade992a7a7f7f
--- /dev/null
+++ b/test/wal8.test
@@ -0,0 +1,91 @@
+# 2012 February 28
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the operation of the library in
+# "PRAGMA journal_mode=WAL" mode.
+#
+# Specifically, it tests the case where a connection opens an empty
+# file. Then, another connection opens the same file and initializes
+# the connection as a WAL database. Following this, the first connection
+# executes a "PRAGMA page_size = XXX" command to set its expected page
+# size, and then queries the database.
+#
+# This is an unusual case, as normally SQLite is able to glean the page
+# size from the database file as soon as it is opened (even before the
+# first read transaction is executed), and the "PRAGMA page_size = XXX"
+# is a no-op.
+#
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix wal8
+ifcapable !wal {finish_test ; return }
+do_not_use_codec
+
+db close
+forcedelete test.db test.db-wal
+
+sqlite3 db test.db
+sqlite3 db2 test.db
+
+do_test 1.0 {
+  execsql {
+    PRAGMA journal_mode = wal;
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, 2);
+  } db2
+} {wal}
+
+do_catchsql_test 1.1 {
+  PRAGMA page_size = 4096;
+  VACUUM;
+} {0 {}}
+
+db close
+db2 close
+forcedelete test.db test.db-wal
+
+sqlite3 db test.db
+sqlite3 db2 test.db
+
+do_test 2.0 {
+  execsql {
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, 2);
+    PRAGMA journal_mode = wal;
+  } db2
+} {wal}
+
+do_catchsql_test 2.1 {
+  PRAGMA page_size = 4096;
+  VACUUM;
+} {0 {}}
+
+db close
+db2 close
+forcedelete test.db test.db-wal
+
+sqlite3 db test.db
+sqlite3 db2 test.db
+
+do_test 3.0 {
+  execsql {
+    PRAGMA journal_mode = wal;
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, 2);
+  } db2
+} {wal}
+
+do_execsql_test 3.1 {
+  PRAGMA page_size = 4096;
+  SELECT name FROM sqlite_master;
+} {t1}
+
+finish_test
diff --git a/test/wal9.test b/test/wal9.test
new file mode 100644
index 0000000000000000000000000000000000000000..ae2a52bb02a783c64673aa5ee458f25a77420b78
--- /dev/null
+++ b/test/wal9.test
@@ -0,0 +1,94 @@
+# 2012 October 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+# This test case tests that a problem causing a failing assert() has
+# been fixed. The problem occurred if a writer process with a subset
+# of the *shm file mapped rolled back a transaction begun after the
+# entire WAL file was checkpointed into the db file (i.e. a transaction
+# that would have restarted the WAL file from the beginning).
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix wal9
+
+sqlite3 db2 test.db
+
+do_execsql_test 1.0 {
+  PRAGMA page_size = 1024;
+  PRAGMA journal_mode = WAL;
+  PRAGMA wal_autocheckpoint = 0;
+  CREATE TABLE t(x);
+} {wal 0}
+
+do_test 1.1 { 
+  execsql "SELECT * FROM t" db2
+} {}
+
+do_execsql_test 1.2 {
+  BEGIN;
+    INSERT INTO t VALUES(randomblob(100));
+    INSERT INTO t SELECT randomblob(100) FROM t;
+    INSERT INTO t SELECT randomblob(100) FROM t;
+    INSERT INTO t SELECT randomblob(100) FROM t;
+    INSERT INTO t SELECT randomblob(100) FROM t;
+    INSERT INTO t SELECT randomblob(100) FROM t;
+    INSERT INTO t SELECT randomblob(100) FROM t;
+    INSERT INTO t SELECT randomblob(100) FROM t;
+
+    INSERT INTO t SELECT randomblob(100) FROM t;
+    INSERT INTO t SELECT randomblob(100) FROM t;
+    INSERT INTO t SELECT randomblob(100) FROM t;
+    INSERT INTO t SELECT randomblob(100) FROM t;
+    INSERT INTO t SELECT randomblob(100) FROM t;
+    INSERT INTO t SELECT randomblob(100) FROM t;
+    INSERT INTO t SELECT randomblob(100) FROM t;
+    INSERT INTO t SELECT randomblob(100) FROM t;
+
+    INSERT INTO t SELECT randomblob(100) FROM t;
+    INSERT INTO t SELECT randomblob(100) FROM t;
+  COMMIT;
+} {}
+
+# Check file sizes are as expected. The real requirement here is that 
+# the *shm file is now more than one chunk (>32KiB).
+#
+# The sizes of various files are slightly different in normal and 
+# auto-vacuum mode.
+do_test 1.3 { file size test.db     } {1024}
+do_test 1.4 { expr {[file size test.db-wal]>(1500*1024)} } {1}
+do_test 1.5 { expr {[file size test.db-shm]>32768} }       {1}
+do_test 1.6 { 
+  foreach {a b c} [db eval {PRAGMA wal_checkpoint}] break
+  list [expr {$a==0}] [expr {$b>14500}] [expr {$c>14500}] [expr {$b==$c}]
+} {1 1 1 1}
+
+# At this point connection [db2] has mapped the first 32KB of the *shm file
+# only. Because the entire WAL file has been checkpointed, it is not 
+# necessary to map any more of the *-shm file to read or write the database
+# (since all data will be read directly from the db file). 
+#
+# However, at one point if a transaction that had not yet written to the 
+# WAL file was rolled back an assert() attempting to verify that the entire 
+# *-shm file was mapped would fail. If NDEBUG was defined (and the assert() 
+# disabled) this bug caused SQLite to ignore the return code of a mmap() 
+# call.
+#
+do_test 1.7 {
+  execsql { 
+    BEGIN;
+      INSERT INTO t VALUES('hello');
+    ROLLBACK;
+  } db2
+} {}
+db2 close
+
+finish_test
diff --git a/test/wal_common.tcl b/test/wal_common.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..d31131aa02313736ef0f284fe7edd34a8f4450a3
--- /dev/null
+++ b/test/wal_common.tcl
@@ -0,0 +1,129 @@
+# 2010 June 03
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains common code used by many different malloc tests
+# within the test suite.
+#
+
+proc wal_file_size {nFrame pgsz} {
+  expr {32 + ($pgsz+24)*$nFrame}
+}
+
+proc wal_frame_count {zFile pgsz} {
+  if {[file exists $zFile]==0} { return 0 }
+  set f [file size $zFile]
+  if {$f < 32} { return 0 }
+  expr {($f - 32) / ($pgsz+24)}
+}
+
+proc wal_cksum_intlist {ckv1 ckv2 intlist} {
+  upvar $ckv1 c1
+  upvar $ckv2 c2
+  foreach {v1 v2} $intlist {
+    set c1 [expr {($c1 + $v1 + $c2)&0xFFFFFFFF}]
+    set c2 [expr {($c2 + $v2 + $c1)&0xFFFFFFFF}]
+  }
+}
+
+
+# This proc calculates checksums in the same way as those used by SQLite 
+# in WAL files. If the $endian argument is "big", then checksums are
+# calculated by interpreting data as an array of big-endian integers. If
+# it is "little", data is interpreted as an array of little-endian integers.
+#
+proc wal_cksum {endian ckv1 ckv2 blob} {
+  upvar $ckv1 c1
+  upvar $ckv2 c2
+
+  if {$endian!="big" && $endian!="little"} {
+    return -error "Bad value \"$endian\" - must be \"big\" or \"little\""
+  }
+  set scanpattern I*
+  if {$endian == "little"} { set scanpattern i* }
+
+  binary scan $blob $scanpattern values
+  wal_cksum_intlist c1 c2 $values
+}
+
+proc wal_set_walhdr {filename {intlist {}}} {
+  if {[llength $intlist]==6} {
+    set blob [binary format I6 $intlist]
+    set endian little
+    if {[lindex $intlist 0] & 0x00000001} { set endian big }
+    set c1 0
+    set c2 0
+    wal_cksum $endian c1 c2 $blob
+    append blob [binary format II $c1 $c2]
+
+    set fd [open $filename r+]
+    fconfigure $fd -translation binary
+    seek $fd 0
+    puts -nonewline $fd $blob
+    close $fd
+  }
+
+  set fd [open $filename]
+  fconfigure $fd -translation binary
+  set blob [read $fd 24]
+  close $fd
+
+  binary scan $blob I6 ints
+  set ints
+}
+
+proc wal_fix_walindex_cksum {hdrvar} {
+  upvar $hdrvar hdr
+  set c1 0
+  set c2 0
+  wal_cksum_intlist c1 c2 [lrange $hdr 0 9]
+  lset hdr 10 $c1
+  lset hdr 11 $c2
+}
+
+# This command assumes that $file is the name of a database file opened
+# in wal mode using a [testvfs] VFS. It returns a list of the 12 32-bit
+# integers that make up the wal-index-header for the named file.
+#
+proc set_tvfs_hdr {file args} {
+
+  # Set $nHdr to the number of bytes in the wal-index header:
+  set nHdr 48
+  set nInt [expr {$nHdr/4}]
+
+  if {[llength $args]>2} {
+    error {wrong # args: should be "set_tvfs_hdr fileName ?val1? ?val2?"}
+  }
+
+  set blob [tvfs shm $file]
+  if {$::tcl_platform(byteOrder)=="bigEndian"} {set fmt I} {set fmt i}
+
+  if {[llength $args]} {
+    set ia [lindex $args 0]
+    set ib $ia
+    if {[llength $args]==2} {
+      set ib [lindex $args 1]
+    }
+    binary scan $blob a[expr $nHdr*2]a* dummy tail
+    set blob [binary format ${fmt}${nInt}${fmt}${nInt}a* $ia $ib $tail]
+    tvfs shm $file $blob
+  }
+
+  binary scan $blob ${fmt}${nInt} ints
+  return $ints
+}
+
+proc incr_tvfs_hdr {file idx incrval} {
+  set ints [set_tvfs_hdr $file]
+  set v [lindex $ints $idx]
+  incr v $incrval
+  lset ints $idx $v
+  set_tvfs_hdr $file $ints
+}
diff --git a/test/walbak.test b/test/walbak.test
new file mode 100644
index 0000000000000000000000000000000000000000..0e0f999534f7844c55c41fd15181aab80e51282d
--- /dev/null
+++ b/test/walbak.test
@@ -0,0 +1,359 @@
+# 2010 April 22
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the operation of the library in
+# "PRAGMA journal_mode=WAL" mode.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/wal_common.tcl
+source $testdir/malloc_common.tcl
+
+do_not_use_codec
+
+ifcapable !wal {finish_test ; return }
+
+
+# Test organization:
+# 
+#   walback-1.*: Simple tests.
+#
+#   walback-2.*: Test backups when the source db is modified mid-backup.
+#
+#   walback-3.*: Backup of WAL sources into rollback destinations, and 
+#                vice-versa.
+#
+
+# Make sure a simple backup from a WAL database works.
+#
+do_test walbak-1.0 {
+  execsql { 
+    PRAGMA synchronous = NORMAL;
+    PRAGMA page_size = 1024;
+    PRAGMA auto_vacuum = 0;
+    PRAGMA journal_mode = wal;
+    BEGIN;
+      CREATE TABLE t1(a PRIMARY KEY, b);
+      INSERT INTO t1 VALUES('I', 'one');
+    COMMIT;
+  }
+} {wal}
+do_test walbak-1.1 {
+  forcedelete bak.db bak.db-journal bak.db-wal
+  db backup bak.db
+  file size bak.db
+} [expr 3*1024]
+do_test walbak-1.2 {
+  sqlite3 db2 bak.db
+  execsql { 
+    SELECT * FROM t1;
+    PRAGMA main.journal_mode;
+  } db2
+} {I one wal}
+do_test walbak-1.3 {
+  execsql { PRAGMA integrity_check } db2
+} {ok}
+db2 close
+
+# Try a VACUUM on a WAL database.
+#
+do_test walbak-1.4 {
+  execsql { 
+    VACUUM;
+    PRAGMA main.journal_mode;
+  }
+} {wal}
+do_test walbak-1.5 {
+  list [file size test.db] [file size test.db-wal]
+} [list 1024 [wal_file_size 6 1024]]
+do_test walbak-1.6 {
+  execsql { PRAGMA wal_checkpoint }
+  list [file size test.db] [file size test.db-wal]
+} [list [expr 3*1024] [wal_file_size 6 1024]]
+do_test walbak-1.6.1 {
+  hexio_read test.db 18 2
+} {0202}
+do_test walbak-1.7 {
+  execsql { 
+    CREATE TABLE t2(a, b);
+    INSERT INTO t2 SELECT * FROM t1;
+    DROP TABLE t1;
+  }
+  list [file size test.db] [file size test.db-wal]
+} [list [expr 3*1024] [wal_file_size 6 1024]]
+do_test walbak-1.8 {
+  execsql { VACUUM }
+  list [file size test.db] [file size test.db-wal]
+} [list [expr 3*1024] [wal_file_size 8 1024]]
+do_test walbak-1.9 {
+  execsql { PRAGMA wal_checkpoint }
+  list [file size test.db] [file size test.db-wal]
+} [list [expr 2*1024] [wal_file_size 8 1024]]
+
+#-------------------------------------------------------------------------
+# Backups when the source db is modified mid-backup.
+#
+proc sig {{db db}} {
+  $db eval { 
+    PRAGMA integrity_check;
+    SELECT md5sum(a, b) FROM t1; 
+  }
+}
+db close
+delete_file test.db
+sqlite3 db test.db
+do_test walbak-2.1 {
+  execsql { PRAGMA journal_mode = WAL }
+  execsql {
+    CREATE TABLE t1(a PRIMARY KEY, b);
+    BEGIN;
+      INSERT INTO t1 VALUES(randomblob(500), randomblob(500));
+      INSERT INTO t1 SELECT randomblob(500), randomblob(500) FROM t1; /*  2 */
+      INSERT INTO t1 SELECT randomblob(500), randomblob(500) FROM t1; /*  4 */
+      INSERT INTO t1 SELECT randomblob(500), randomblob(500) FROM t1; /*  8 */
+      INSERT INTO t1 SELECT randomblob(500), randomblob(500) FROM t1; /* 16 */
+      INSERT INTO t1 SELECT randomblob(500), randomblob(500) FROM t1; /* 32 */
+      INSERT INTO t1 SELECT randomblob(500), randomblob(500) FROM t1; /* 64 */
+    COMMIT;
+  }
+} {}
+do_test walbak-2.2 {
+  forcedelete abc.db
+  db backup abc.db
+  sqlite3 db2 abc.db
+  string compare [sig db] [sig db2]
+} {0}
+
+do_test walbak-2.3 {
+  sqlite3_backup B db2 main db main
+  B step 50
+  execsql { UPDATE t1 SET b = randomblob(500) }
+  list [B step 1000] [B finish]
+} {SQLITE_DONE SQLITE_OK}
+do_test walbak-2.4 {
+  string compare [sig db] [sig db2]
+} {0}
+
+do_test walbak-2.5 {
+  db close
+  sqlite3 db test.db
+  execsql { PRAGMA cache_size = 10 }
+  sqlite3_backup B db2 main db main
+  B step 50
+  execsql {
+    BEGIN;
+      UPDATE t1 SET b = randomblob(500);
+  }
+  expr [file size test.db-wal] > 10*1024
+} {1}
+do_test walbak-2.6 {
+  B step 1000
+} {SQLITE_BUSY}
+do_test walbak-2.7 {
+  execsql COMMIT
+  list [B step 1000] [B finish]
+} {SQLITE_DONE SQLITE_OK}
+do_test walbak-2.8 {
+  string compare [sig db] [sig db2]
+} {0}
+
+do_test walbak-2.9 {
+  db close
+  sqlite3 db test.db
+  execsql { PRAGMA cache_size = 10 }
+  sqlite3_backup B db2 main db main
+  B step 50
+  execsql {
+    BEGIN;
+      UPDATE t1 SET b = randomblob(500);
+  }
+  expr [file size test.db-wal] > 10*1024
+} {1}
+do_test walbak-2.10 {
+  B step 1000
+} {SQLITE_BUSY}
+do_test walbak-2.11 {
+  execsql ROLLBACK
+set sigB [sig db]
+  list [B step 1000] [B finish]
+} {SQLITE_DONE SQLITE_OK}
+do_test walbak-2.12 {
+  string compare [sig db] [sig db2]
+} {0}
+db2 close
+db close
+
+#-------------------------------------------------------------------------
+# Run some backup operations to copy back and forth between WAL and:
+#
+#   walbak-3.1.*: an in-memory database
+#
+#   walbak-3.2.*: a temporary database
+#
+#   walbak-3.3.*: a database in rollback mode.
+#
+#   walbak-3.4.*: a database in rollback mode that (initially) uses a 
+#                 different page-size.
+#
+# Check that this does not confuse any connected clients.
+#
+foreach {tn setup} {
+  1 {
+    sqlite3 db  test.db
+    sqlite3 db2 :memory:
+    db  eval { PRAGMA page_size = 1024 ; PRAGMA journal_mode = WAL }
+    db2 eval { PRAGMA page_size = 1024 }
+  }
+
+  2 {
+    sqlite3 db  test.db
+    sqlite3 db2 ""
+    db  eval { PRAGMA page_size = 1024 ; PRAGMA journal_mode = WAL }
+    db2 eval { PRAGMA page_size = 1024 }
+  }
+
+  3 {
+    sqlite3 db  test.db
+    sqlite3 db2 test.db2
+    db  eval { PRAGMA page_size = 1024 ; PRAGMA journal_mode = WAL }
+    db2 eval { PRAGMA page_size = 1024 ; PRAGMA journal_mode = PERSIST }
+  }
+
+  4 {
+    sqlite3 db  test.db
+    sqlite3 db2 test.db2
+    db  eval { PRAGMA page_size = 1024 ; PRAGMA journal_mode = WAL }
+    db2 eval { 
+      PRAGMA page_size = 2048;
+      PRAGMA journal_mode = PERSIST;
+      CREATE TABLE xx(x);
+    }
+  }
+
+} {
+  if {$tn==4 && [sqlite3 -has-codec]} continue
+  foreach f [glob -nocomplain test.db*] { forcedelete $f }
+
+  eval $setup
+
+  do_test walbak-3.$tn.1 {
+    execsql {
+      CREATE TABLE t1(a, b);
+      INSERT INTO t1 VALUES(1, 2);
+      INSERT INTO t1 VALUES(3, 4);
+      SELECT * FROM t1;
+    }
+  } {1 2 3 4}
+
+  do_test walbak-3.$tn.2 {
+    sqlite3_backup B db2 main db main
+    B step 10000
+    B finish
+    execsql { SELECT * FROM t1 } db2
+  } {1 2 3 4}
+
+  do_test walbak-3.$tn.3 {
+    execsql {
+      INSERT INTO t1 VALUES(5, 6);
+      INSERT INTO t1 VALUES(7, 8);
+      SELECT * FROM t1;
+    } db2
+  } {1 2 3 4 5 6 7 8}
+
+  do_test walbak-3.$tn.4 {
+    sqlite3_backup B db main db2 main
+    B step 10000
+    B finish
+    execsql { SELECT * FROM t1 }
+  } {1 2 3 4 5 6 7 8}
+
+  # Check that [db] is still in WAL mode.
+  do_test walbak-3.$tn.5 {
+    execsql { PRAGMA journal_mode }
+  } {wal}
+  do_test walbak-3.$tn.6 {
+    execsql { PRAGMA wal_checkpoint }
+    hexio_read test.db 18 2
+  } {0202}
+
+  # If it was not an in-memory database, check that [db2] is still in
+  # rollback mode.
+  if {[file exists test.db2]} {
+    do_test walbak-3.$tn.7 {
+      execsql { PRAGMA journal_mode } db2
+    } {wal}
+    do_test walbak-3.$tn.8 {
+      execsql { PRAGMA wal_checkpoint }
+      hexio_read test.db 18 2
+    } {0202}
+  }
+
+  db  close
+  db2 close
+}
+
+#-------------------------------------------------------------------------
+# Test that the following holds when a backup operation is run:
+#
+#   Source  |  Destination inital  |  Destination final
+#   ---------------------------------------------------
+#   Rollback   Rollback               Rollback
+#   Rollback   WAL                    WAL
+#   WAL        Rollback               WAL
+#   WAL        WAL                    WAL
+#
+foreach {tn src dest dest_final} {
+  1   delete    delete    delete
+  2   delete    wal       wal
+  3   wal       delete    wal
+  4   wal       wal       wal
+} {
+  catch { db close } 
+  catch { db2 close } 
+  forcedelete test.db test.db2
+
+  do_test walbak-4.$tn.1 {
+    sqlite3 db test.db
+    db eval "PRAGMA journal_mode = $src"
+    db eval {
+      CREATE TABLE t1(a, b);
+      INSERT INTO t1 VALUES('I', 'II');
+      INSERT INTO t1 VALUES('III', 'IV');
+    }
+
+    sqlite3 db2 test.db2
+    db2 eval "PRAGMA journal_mode = $dest"
+    db2 eval {
+      CREATE TABLE t2(x, y);
+      INSERT INTO t2 VALUES('1', '2');
+      INSERT INTO t2 VALUES('3', '4');
+    }
+  } {}
+
+  do_test walbak-4.$tn.2 { execsql { PRAGMA journal_mode } db  } $src
+  do_test walbak-4.$tn.3 { execsql { PRAGMA journal_mode } db2 } $dest
+
+  do_test walbak-4.$tn.4 { db backup test.db2 } {}
+  do_test walbak-4.$tn.5 {
+    execsql { SELECT * FROM t1 } db2
+  } {I II III IV}
+  do_test walbak-4.$tn.5 { execsql { PRAGMA journal_mode } db2 } $dest_final
+
+
+  db2 close
+  do_test walbak-4.$tn.6 { file exists test.db2-wal } 0
+  sqlite3 db2 test.db2
+  do_test walbak-4.$tn.7 { execsql { PRAGMA journal_mode } db2 } $dest_final
+}
+
+
+finish_test
diff --git a/test/walbig.test b/test/walbig.test
new file mode 100644
index 0000000000000000000000000000000000000000..c43b7e25033b691c05eaa5638d81e3745ef60c2e
--- /dev/null
+++ b/test/walbig.test
@@ -0,0 +1,78 @@
+# 2010 July 07
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script testing the ability of SQLite to handle database
+# files larger than 4GB in WAL mode.
+#
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !wal {
+  finish_test
+  return
+}
+
+# Do not use a codec for this file, as the database is manipulated using
+# external methods (the [fake_big_file] and [hexio_write] commands).
+#
+do_not_use_codec
+
+# If SQLITE_DISABLE_LFS is defined, omit this file.
+ifcapable !lfs {
+  finish_test
+  return
+}
+
+set a_string_counter 1
+proc a_string {n} {
+  incr ::a_string_counter
+  string range [string repeat "${::a_string_counter}." $n] 1 $n
+}
+db func a_string a_string
+
+do_test walbig-1.0 {
+  execsql {
+    PRAGMA journal_mode = WAL;
+    CREATE TABLE t1(a PRIMARY KEY, b UNIQUE);
+    INSERT INTO t1 VALUES(a_string(300), a_string(500));
+    INSERT INTO t1 SELECT a_string(300), a_string(500) FROM t1;
+    INSERT INTO t1 SELECT a_string(300), a_string(500) FROM t1;
+    INSERT INTO t1 SELECT a_string(300), a_string(500) FROM t1;
+  }
+} {wal}
+
+db close
+if {[catch {fake_big_file 5000 [get_pwd]/test.db}]} {
+  puts "**** Unable to create a file larger than 5000 MB. *****"
+  finish_test
+  return
+}
+hexio_write test.db 28 00000000
+
+sqlite3 db test.db
+db func a_string a_string
+do_test walbig-1.1 {
+  execsql { INSERT INTO t1 SELECT a_string(300), a_string(500) FROM t1 }
+} {}
+db close
+
+sqlite3 db test.db
+do_test walbig-1.2 {
+  execsql { SELECT a FROM t1 ORDER BY a }
+} [lsort [execsql { SELECT a FROM t1 ORDER BY rowid }]]
+
+do_test walbig-1.3 {
+  execsql { SELECT b FROM t1 ORDER BY b }
+} [lsort [execsql { SELECT b FROM t1 ORDER BY rowid }]]
+
+finish_test
diff --git a/test/walblock.test b/test/walblock.test
new file mode 100644
index 0000000000000000000000000000000000000000..23167a88305531c21dc67dffd7dee6bc87874c8c
--- /dev/null
+++ b/test/walblock.test
@@ -0,0 +1,114 @@
+# 2015 Mar 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+source $testdir/wal_common.tcl
+
+finish_test; return;    #  Feature currently not implemented.
+ifcapable !wal {finish_test ; return }
+if {$::tcl_platform(platform)!="unix"} { finish_test ; return }
+set testprefix walblock
+
+catch { db close }
+testvfs tvfs -fullshm 1
+foreach f [glob test.db*] { forcedelete $f }
+
+sqlite3 db test.db -vfs tvfs
+do_execsql_test 1.1.0 {
+  CREATE TABLE t1(x, y);
+  INSERT INTO t1 VALUES(1, 2);
+  INSERT INTO t1 VALUES(3, 4);
+  INSERT INTO t1 VALUES(5, 6);
+  PRAGMA journal_mode = wal;
+  INSERT INTO t1 VALUES(7, 8);
+} {wal}
+
+do_test 1.1.1 { 
+  lsort [glob test.db*] 
+} {test.db test.db-shm test.db-wal}
+
+do_test 1.1.2 { 
+  set C [launch_testfixture]
+  testfixture $C {
+    sqlite3 db test.db
+    db eval { SELECT * FROM t1 }
+  }
+} {1 2 3 4 5 6 7 8}
+
+do_test 1.1.3 { 
+  set ::out [list]
+  testfixture $C {
+    db eval { SELECT * FROM t1 }
+  } [list set ::out]
+  set ::out
+} {}
+
+do_test 1.1.4 { 
+  vwait ::out
+  set ::out
+} {1 2 3 4 5 6 7 8}
+
+#
+# Test that if a read client cannot read the wal-index header because a
+# write client is in the middle of updating it, the reader blocks until
+# the writer finishes.
+#
+#   1. Open a write transaction using client [db] in this process.
+#
+#   2. Attempt to commit the write transaction. Intercept the xShmBarrier()
+#      call made by the writer between updating the two copies of the
+#      wal-index header.
+#
+#   3. Within the xShmBarrier() callback, make an asynchronous request to
+#      the other process to read from the database. It should block, as it
+#      cannot get read the wal-index header.
+#
+#   4. Still in xShmBarrier(), wait for 5 seconds. Check that the other
+#      process has not answered the request.
+#
+#   5: Finish committing the transaction. Then wait for 0.5 seconds more.
+#      Ensure that the second process has by this stage read the database
+#      and that the snapshot it read included the transaction committed in
+#      step (4).
+#
+do_execsql_test 1.2.1 {
+  BEGIN;
+    INSERT INTO t1 VALUES(9, 10);
+} {}
+
+tvfs script barrier_callback
+tvfs filter xShmBarrier
+proc barrier_callback {method args} {
+  set ::out ""
+  testfixture $::C { db eval { SELECT * FROM t1 } } {set ::out}
+
+  do_test "1.2.2.(blocking 10 seconds)" { 
+    set ::continue 0
+    after 10000 {set ::continue 1}
+    vwait ::continue
+    set ::out 
+  } {}
+}
+
+execsql COMMIT
+
+do_test "1.2.3.(blocking 0.5 seconds)" { 
+  set ::continue 0
+  after 500 {set ::continue 1}
+  vwait ::continue
+  set ::out 
+} {1 2 3 4 5 6 7 8 9 10}
+
+
+finish_test
diff --git a/test/walcksum.test b/test/walcksum.test
new file mode 100644
index 0000000000000000000000000000000000000000..10329ba6c81431d14a15fc13cd6ae99deed7dd56
--- /dev/null
+++ b/test/walcksum.test
@@ -0,0 +1,335 @@
+# 2010 May 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+source $testdir/wal_common.tcl
+
+ifcapable !wal {finish_test ; return }
+
+# Read and return the contents of file $filename. Treat the content as
+# binary data.
+#
+proc readfile {filename} {
+  set fd [open $filename]
+  fconfigure $fd -translation binary
+  set data [read $fd]
+  close $fd
+  return $data
+}
+
+#
+# File $filename must be a WAL file on disk. Check that the checksum of frame
+# $iFrame in the file is correct when interpreting data as $endian-endian
+# integers ($endian must be either "big" or "little"). If the checksum looks
+# correct, return 1. Otherwise 0.
+#
+proc log_checksum_verify {filename iFrame endian} {
+  set data [readfile $filename]
+
+  foreach {offset c1 c2} [log_checksum_calc $data $iFrame $endian] {}
+
+  binary scan [string range $data $offset [expr $offset+7]] II expect1 expect2
+  set expect1 [expr $expect1&0xFFFFFFFF]
+  set expect2 [expr $expect2&0xFFFFFFFF]
+
+  expr {$c1==$expect1 && $c2==$expect2}
+}
+
+# File $filename must be a WAL file on disk. Compute the checksum for frame
+# $iFrame in the file by interpreting data as $endian-endian integers 
+# ($endian must be either "big" or "little"). Then write the computed 
+# checksum into the file.
+#
+proc log_checksum_write {filename iFrame endian} {
+  set data [readfile $filename]
+
+  foreach {offset c1 c2} [log_checksum_calc $data $iFrame $endian] {}
+
+  set bin [binary format II $c1 $c2]
+  set fd [open $filename r+]
+  fconfigure $fd -translation binary
+  seek $fd $offset
+  puts -nonewline $fd $bin
+  close $fd
+}
+
+# Calculate and return the checksum for a particular frame in a WAL.
+#
+# Arguments are:
+#
+#   $data         Blob containing the entire contents of a WAL.
+#
+#   $iFrame       Frame number within the $data WAL. Frames are numbered 
+#                 starting at 1.
+#
+#   $endian       One of "big" or "little".
+#
+# Returns a list of three elements, as follows:
+#
+#   * The byte offset of the checksum belonging to frame $iFrame in the WAL.
+#   * The first integer in the calculated version of the checksum.
+#   * The second integer in the calculated version of the checksum.
+#
+proc log_checksum_calc {data iFrame endian} {
+  
+  binary scan [string range $data 8 11] I pgsz
+  if {$iFrame > 1} {
+    set n [wal_file_size [expr $iFrame-2] $pgsz]
+    binary scan [string range $data [expr $n+16] [expr $n+23]] II c1 c2
+  } else {
+    set c1 0
+    set c2 0
+    wal_cksum $endian c1 c2 [string range $data 0 23]
+  }
+
+  set n [wal_file_size [expr $iFrame-1] $pgsz]
+  wal_cksum $endian c1 c2 [string range $data $n [expr $n+7]]
+  wal_cksum $endian c1 c2 [string range $data [expr $n+24] [expr $n+24+$pgsz-1]]
+
+  list [expr $n+16] $c1 $c2
+}
+
+#
+# File $filename must be a WAL file on disk. Set the 'magic' field of the
+# WAL header to indicate that checksums are $endian-endian ($endian must be
+# either "big" or "little").
+#
+# Also update the wal header checksum (since the wal header contents may
+# have changed).
+#
+proc log_checksum_writemagic {filename endian} {
+  set val [expr {0x377f0682 | ($endian == "big" ? 1 : 0)}]
+  set bin [binary format I $val]
+  set fd [open $filename r+]
+  fconfigure $fd -translation binary
+  puts -nonewline $fd $bin
+
+  seek $fd 0
+  set blob [read $fd 24]
+  set c1 0
+  set c2 0
+  wal_cksum $endian c1 c2 $blob 
+  seek $fd 24
+  puts -nonewline $fd [binary format II $c1 $c2]
+
+  close $fd
+}
+
+#-------------------------------------------------------------------------
+# Test cases walcksum-1.* attempt to verify the following:
+#
+#   * That both native and non-native order checksum log files can 
+#      be recovered.
+#
+#   * That when appending to native or non-native checksum log files 
+#     SQLite continues to use the right kind of checksums.
+#
+#   * Test point 2 when the appending process is not one that recovered
+#     the log file.
+#
+#   * Test that both native and non-native checksum log files can be
+#     checkpointed. And that after doing so the next write to the log
+#     file occurs using native byte-order checksums. 
+#
+set native "big"
+if {$::tcl_platform(byteOrder) == "littleEndian"} { set native "little" }
+foreach endian {big little} {
+
+  # Create a database. Leave some data in the log file.
+  #
+  do_test walcksum-1.$endian.1 {
+    catch { db close }
+    forcedelete test.db test.db-wal test.db-journal
+    sqlite3 db test.db
+    execsql {
+      PRAGMA page_size = 1024;
+      PRAGMA auto_vacuum = 0;
+      PRAGMA synchronous = NORMAL;
+
+      CREATE TABLE t1(a PRIMARY KEY, b);
+      INSERT INTO t1 VALUES(1,  'one');
+      INSERT INTO t1 VALUES(2,  'two');
+      INSERT INTO t1 VALUES(3,  'three');
+      INSERT INTO t1 VALUES(5,  'five');
+
+      PRAGMA journal_mode = WAL;
+      INSERT INTO t1 VALUES(8,  'eight');
+      INSERT INTO t1 VALUES(13, 'thirteen');
+      INSERT INTO t1 VALUES(21, 'twentyone');
+    }
+
+    forcecopy test.db test2.db
+    forcecopy test.db-wal test2.db-wal
+    db close
+
+    list [file size test2.db] [file size test2.db-wal]
+  } [list [expr 1024*3] [wal_file_size 6 1024]]
+
+  # Verify that the checksums are valid for all frames and that they
+  # are calculated by interpreting data in native byte-order.
+  #
+  for {set f 1} {$f <= 6} {incr f} {
+    do_test walcksum-1.$endian.2.$f {
+      log_checksum_verify test2.db-wal $f $native
+    } 1
+  }
+
+  # Replace all checksums in the current WAL file with $endian versions.
+  # Then check that it is still possible to recover and read the database.
+  #
+  log_checksum_writemagic test2.db-wal $endian
+  for {set f 1} {$f <= 6} {incr f} {
+    do_test walcksum-1.$endian.3.$f {
+      log_checksum_write test2.db-wal $f $endian
+      log_checksum_verify test2.db-wal $f $endian
+    } {1}
+  }
+  do_test walcksum-1.$endian.4.1 {
+    forcecopy test2.db test.db
+    forcecopy test2.db-wal test.db-wal
+    sqlite3 db test.db
+    execsql { SELECT a FROM t1 }
+  } {1 2 3 5 8 13 21}
+
+  # Following recovery, any frames written to the log should use the same 
+  # endianness as the existing frames. Check that this is the case.
+  #
+  do_test walcksum-1.$endian.5.0 {
+    execsql { 
+      PRAGMA synchronous = NORMAL;
+      INSERT INTO t1 VALUES(34, 'thirtyfour');
+    }
+    list [file size test.db] [file size test.db-wal]
+  } [list [expr 1024*3] [wal_file_size 8 1024]]
+  for {set f 1} {$f <= 8} {incr f} {
+    do_test walcksum-1.$endian.5.$f {
+      log_checksum_verify test.db-wal $f $endian
+    } {1}
+  }
+
+  # Now connect a second connection to the database. Check that this one
+  # (not the one that did recovery) also appends frames to the log using
+  # the same endianness for checksums as the existing frames.
+  #
+  do_test walcksum-1.$endian.6 {
+    sqlite3 db2 test.db
+    execsql { 
+      PRAGMA integrity_check;
+      SELECT a FROM t1;
+    } db2
+  } {ok 1 2 3 5 8 13 21 34}
+  do_test walcksum-1.$endian.7.0 {
+    execsql { 
+      PRAGMA synchronous = NORMAL;
+      INSERT INTO t1 VALUES(55, 'fiftyfive');
+    } db2
+    list [file size test.db] [file size test.db-wal]
+  } [list [expr 1024*3] [wal_file_size 10 1024]]
+  for {set f 1} {$f <= 10} {incr f} {
+    do_test walcksum-1.$endian.7.$f {
+      log_checksum_verify test.db-wal $f $endian
+    } {1}
+  }
+
+  # Now that both the recoverer and non-recoverer have added frames to the
+  # log file, check that it can still be recovered.
+  #
+  forcecopy test.db test2.db
+  forcecopy test.db-wal test2.db-wal
+  do_test walcksum-1.$endian.7.11 {
+    sqlite3 db3 test2.db
+    execsql { 
+      PRAGMA integrity_check;
+      SELECT a FROM t1;
+    } db3
+  } {ok 1 2 3 5 8 13 21 34 55}
+  db3 close
+
+  # Run a checkpoint on the database file. Then, check that any frames written
+  # to the start of the log use native byte-order checksums.
+  #
+  do_test walcksum-1.$endian.8.1 {
+    execsql {
+      PRAGMA wal_checkpoint;
+      INSERT INTO t1 VALUES(89, 'eightynine');
+    }
+    log_checksum_verify test.db-wal 1 $native
+  } {1}
+  do_test walcksum-1.$endian.8.2 {
+    log_checksum_verify test.db-wal 2 $native
+  } {1}
+  do_test walcksum-1.$endian.8.3 {
+    log_checksum_verify test.db-wal 3 $native
+  } {0}
+
+  do_test walcksum-1.$endian.9 {
+    execsql { 
+      PRAGMA integrity_check;
+      SELECT a FROM t1;
+    } db2
+  } {ok 1 2 3 5 8 13 21 34 55 89}
+
+  catch { db close }
+  catch { db2 close }
+}
+
+#-------------------------------------------------------------------------
+# Test case walcksum-2.* tests that if a statement transaction is rolled
+# back after frames are written to the WAL, and then (after writing some
+# more) the outer transaction is committed, the WAL file is still correctly
+# formatted (and can be recovered by a second process if required).
+#
+do_test walcksum-2.1 {
+  forcedelete test.db test.db-wal test.db-journal
+  sqlite3 db test.db
+  execsql {
+    PRAGMA synchronous = NORMAL;
+    PRAGMA page_size = 1024;
+    PRAGMA journal_mode = WAL;
+    PRAGMA cache_size = 10;
+    CREATE TABLE t1(x PRIMARY KEY);
+    PRAGMA wal_checkpoint;
+    INSERT INTO t1 VALUES(randomblob(800));
+    BEGIN;
+      INSERT INTO t1 SELECT randomblob(800) FROM t1;   /*   2 */
+      INSERT INTO t1 SELECT randomblob(800) FROM t1;   /*   4 */
+      INSERT INTO t1 SELECT randomblob(800) FROM t1;   /*   8 */
+      INSERT INTO t1 SELECT randomblob(800) FROM t1;   /*  16 */
+      SAVEPOINT one;
+        INSERT INTO t1 SELECT randomblob(800) FROM t1;   /*  32 */
+        INSERT INTO t1 SELECT randomblob(800) FROM t1;   /*  64 */
+        INSERT INTO t1 SELECT randomblob(800) FROM t1;   /* 128 */
+        INSERT INTO t1 SELECT randomblob(800) FROM t1;   /* 256 */
+      ROLLBACK TO one;
+      INSERT INTO t1 SELECT randomblob(800) FROM t1;   /*  32 */
+      INSERT INTO t1 SELECT randomblob(800) FROM t1;   /*  64 */
+      INSERT INTO t1 SELECT randomblob(800) FROM t1;   /* 128 */
+      INSERT INTO t1 SELECT randomblob(800) FROM t1;   /* 256 */
+    COMMIT;
+  }
+
+  forcecopy test.db test2.db
+  forcecopy test.db-wal test2.db-wal
+
+  sqlite3 db2 test2.db
+  execsql {
+    PRAGMA integrity_check;
+    SELECT count(*) FROM t1;
+  } db2
+} {ok 256}
+catch { db close }
+catch { db2 close }
+
+  
+finish_test
diff --git a/test/walcrash.test b/test/walcrash.test
new file mode 100644
index 0000000000000000000000000000000000000000..b8ca7fbf34009ab37bc377c46e26b5b0c3a003c7
--- /dev/null
+++ b/test/walcrash.test
@@ -0,0 +1,296 @@
+# 2010 February 8
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the operation of the library when
+# recovering a database following a simulated system failure in 
+# "PRAGMA journal_mode=WAL" mode.
+#
+
+#
+# These are 'warm-body' tests of database recovery used while developing 
+# the WAL code. They serve to prove that a few really simple cases work:
+#
+# walcrash-1.*: Recover a database.
+# walcrash-2.*: Recover a database where the failed transaction spanned more
+#               than one page.
+# walcrash-3.*: Recover multiple databases where the failed transaction 
+#               was a multi-file transaction.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable !wal {finish_test ; return }
+
+db close
+
+set seed 0
+set REPEATS 100
+
+# walcrash-1.*
+#
+for {set i 1} {$i < $REPEATS} {incr i} {
+  forcedelete test.db test.db-wal
+  do_test walcrash-1.$i.1 {
+    crashsql -delay 4 -file test.db-wal -seed [incr seed] {
+      PRAGMA journal_mode = WAL;
+      CREATE TABLE t1(a, b);
+      INSERT INTO t1 VALUES(1, 1);
+      INSERT INTO t1 VALUES(2, 3);
+      INSERT INTO t1 VALUES(3, 6);
+    }
+  } {1 {child process exited abnormally}}
+  do_test walcrash-1.$i.2 {
+    sqlite3 db test.db
+    execsql { SELECT sum(a)==max(b) FROM t1 }
+  } {1}
+  integrity_check walcrash-1.$i.3
+  db close
+  
+  do_test walcrash-1.$i.4 {
+    crashsql -delay 2 -file test.db-wal -seed [incr seed] {
+      INSERT INTO t1 VALUES(4, (SELECT sum(a) FROM t1) + 4);
+      INSERT INTO t1 VALUES(5, (SELECT sum(a) FROM t1) + 5);
+    }
+  } {1 {child process exited abnormally}}
+  do_test walcrash-1.$i.5 {
+    sqlite3 db test.db
+    execsql { SELECT sum(a)==max(b) FROM t1 }
+  } {1}
+  integrity_check walcrash-1.$i.6
+  do_test walcrash-1.$i.7 {
+    execsql { PRAGMA main.journal_mode }
+  } {wal}
+  db close
+}
+
+# walcrash-2.*
+#
+for {set i 1} {$i < $REPEATS} {incr i} {
+  forcedelete test.db test.db-wal
+  do_test walcrash-2.$i.1 {
+    crashsql -delay 5 -file test.db-wal -seed [incr seed] {
+      PRAGMA journal_mode = WAL;
+      CREATE TABLE t1(a PRIMARY KEY, b);
+      INSERT INTO t1 VALUES(1, 2);
+      INSERT INTO t1 VALUES(3, 4);
+      INSERT INTO t1 VALUES(5, 9);
+    }
+  } {1 {child process exited abnormally}}
+  do_test walcrash-2.$i.2 {
+    sqlite3 db test.db
+    execsql { SELECT sum(a)==max(b) FROM t1 }
+  } {1}
+  integrity_check walcrash-2.$i.3
+  db close
+  
+  do_test walcrash-2.$i.4 {
+    crashsql -delay 2 -file test.db-wal -seed [incr seed] {
+      INSERT INTO t1 VALUES(6, (SELECT sum(a) FROM t1) + 6);
+      INSERT INTO t1 VALUES(7, (SELECT sum(a) FROM t1) + 7);
+    }
+  } {1 {child process exited abnormally}}
+  do_test walcrash-2.$i.5 {
+    sqlite3 db test.db
+    execsql { SELECT sum(a)==max(b) FROM t1 }
+  } {1}
+  integrity_check walcrash-2.$i.6
+  do_test walcrash-2.$i.6 {
+    execsql { PRAGMA main.journal_mode }
+  } {wal}
+  db close
+}
+
+# walcrash-3.*
+#
+# for {set i 1} {$i < $REPEATS} {incr i} {
+#   forcedelete test.db test.db-wal
+#   forcedelete test2.db test2.db-wal
+# 
+#   do_test walcrash-3.$i.1 {
+#     crashsql -delay 2 -file test2.db-wal -seed [incr seed] {
+#       PRAGMA journal_mode = WAL;
+#       ATTACH 'test2.db' AS aux;
+#       CREATE TABLE t1(a PRIMARY KEY, b);
+#       CREATE TABLE aux.t2(a PRIMARY KEY, b);
+#       BEGIN;
+#         INSERT INTO t1 VALUES(1, 2);
+#         INSERT INTO t2 VALUES(1, 2);
+#       COMMIT;
+#     }
+#   } {1 {child process exited abnormally}}
+# 
+#   do_test walcrash-3.$i.2 {
+#     sqlite3_wal db test.db
+#     execsql { 
+#       ATTACH 'test2.db' AS aux;
+#       SELECT * FROM t1 EXCEPT SELECT * FROM t2;
+#     }
+#   } {}
+#   do_test walcrash-3.$i.3 { execsql { PRAGMA main.integrity_check } } {ok}
+#   do_test walcrash-3.$i.4 { execsql { PRAGMA aux.integrity_check  } } {ok}
+# 
+#   db close
+# }
+
+# walcrash-4.*
+#
+for {set i 1} {$i < $REPEATS} {incr i} {
+  forcedelete test.db test.db-wal
+  forcedelete test2.db test2.db-wal
+
+  do_test walcrash-4.$i.1 {
+    crashsql -delay 4 -file test.db-wal -seed [incr seed] -blocksize 4096 {
+      PRAGMA journal_mode = WAL;
+      PRAGMA page_size = 1024;
+      CREATE TABLE t1(a PRIMARY KEY, b);
+      INSERT INTO t1 VALUES(1, 2);
+      INSERT INTO t1 VALUES(3, 4);
+    }
+  } {1 {child process exited abnormally}}
+
+  do_test walcrash-4.$i.2 {
+    sqlite3 db test.db
+    execsql { 
+      SELECT * FROM t1 WHERE a = 1;
+    }
+  } {1 2}
+  do_test walcrash-4.$i.3 { execsql { PRAGMA main.integrity_check } } {ok}
+  do_test walcrash-4.$i.4 { execsql { PRAGMA main.journal_mode } } {wal}
+
+  db close
+}
+
+# walcrash-5.*
+#
+for {set i 1} {$i < $REPEATS} {incr i} {
+  forcedelete test.db test.db-wal
+  forcedelete test2.db test2.db-wal
+
+  do_test walcrash-5.$i.1 {
+    crashsql -delay 13 -file test.db-wal -seed [incr seed] -blocksize 4096 {
+      PRAGMA journal_mode = WAL;
+      PRAGMA page_size = 1024;
+      BEGIN;
+        CREATE TABLE t1(x PRIMARY KEY);
+        INSERT INTO t1 VALUES(randomblob(900));
+        INSERT INTO t1 VALUES(randomblob(900));
+        INSERT INTO t1 SELECT randomblob(900) FROM t1;           /* 4 */
+      COMMIT;
+      INSERT INTO t1 SELECT randomblob(900) FROM t1 LIMIT 4;   /* 8 */
+      INSERT INTO t1 SELECT randomblob(900) FROM t1 LIMIT 4;   /* 12 */
+      INSERT INTO t1 SELECT randomblob(900) FROM t1 LIMIT 4;   /* 16 */
+      INSERT INTO t1 SELECT randomblob(900) FROM t1 LIMIT 4;   /* 20 */
+      INSERT INTO t1 SELECT randomblob(900) FROM t1 LIMIT 4;   /* 24 */
+      INSERT INTO t1 SELECT randomblob(900) FROM t1 LIMIT 4;   /* 28 */
+      INSERT INTO t1 SELECT randomblob(900) FROM t1 LIMIT 4;   /* 32 */
+
+      PRAGMA wal_checkpoint;
+      INSERT INTO t1 VALUES(randomblob(900));
+      INSERT INTO t1 VALUES(randomblob(900));
+      INSERT INTO t1 VALUES(randomblob(900));
+    }
+  } {1 {child process exited abnormally}}
+
+  do_test walcrash-5.$i.2 {
+    sqlite3 db test.db
+    execsql { SELECT count(*)==33 OR count(*)==34 FROM t1 WHERE x != 1 }
+  } {1}
+  do_test walcrash-5.$i.3 { execsql { PRAGMA main.integrity_check } } {ok}
+  do_test walcrash-5.$i.4 { execsql { PRAGMA main.journal_mode } } {wal}
+
+  db close
+}
+
+# walcrash-6.*
+#
+for {set i 1} {$i < $REPEATS} {incr i} {
+  forcedelete test.db test.db-wal
+  forcedelete test2.db test2.db-wal
+
+  do_test walcrash-6.$i.1 {
+    crashsql -delay 14 -file test.db-wal -seed [incr seed] -blocksize 512 {
+      PRAGMA journal_mode = WAL;
+      PRAGMA page_size = 1024;
+      BEGIN;
+        CREATE TABLE t1(x PRIMARY KEY);
+        INSERT INTO t1 VALUES(randomblob(900));
+        INSERT INTO t1 VALUES(randomblob(900));
+        INSERT INTO t1 SELECT randomblob(900) FROM t1;           /* 4 */
+      COMMIT;
+      INSERT INTO t1 SELECT randomblob(900) FROM t1 LIMIT 4;   /* 8 */
+      INSERT INTO t1 SELECT randomblob(900) FROM t1 LIMIT 4;   /* 12 */
+      INSERT INTO t1 SELECT randomblob(900) FROM t1 LIMIT 4;   /* 16 */
+      INSERT INTO t1 SELECT randomblob(900) FROM t1 LIMIT 4;   /* 20 */
+      INSERT INTO t1 SELECT randomblob(900) FROM t1 LIMIT 4;   /* 24 */
+      INSERT INTO t1 SELECT randomblob(900) FROM t1 LIMIT 4;   /* 28 */
+      INSERT INTO t1 SELECT randomblob(900) FROM t1 LIMIT 4;   /* 32 */
+
+      PRAGMA wal_checkpoint;
+      INSERT INTO t1 VALUES(randomblob(9000));
+      INSERT INTO t1 VALUES(randomblob(9000));
+      INSERT INTO t1 VALUES(randomblob(9000));
+      INSERT INTO t1 VALUES(randomblob(9000));
+    }
+  } {1 {child process exited abnormally}}
+
+  do_test walcrash-6.$i.2 {
+    sqlite3 db test.db
+    execsql { SELECT count(*) BETWEEN 34 AND 36 FROM t1 WHERE x != 1 }
+  } {1}
+  do_test walcrash-6.$i.3 { execsql { PRAGMA main.integrity_check } } {ok}
+  do_test walcrash-6.$i.4 { execsql { PRAGMA main.journal_mode } } {wal}
+
+  db close
+}
+
+#-------------------------------------------------------------------------
+# This test case simulates a crash while checkpointing the database. Page
+# 1 is one of the pages overwritten by the checkpoint. This is a special
+# case because it means the content of page 1 may be damaged. SQLite will
+# have to determine:
+#
+#   (a) that the database is a WAL database, and 
+#   (b) the database page-size
+#
+# based on the log file.
+#
+for {set i 1} {$i < $REPEATS} {incr i} {
+  forcedelete test.db test.db-wal
+
+  # Select a page-size for this test.
+  #
+  set pgsz [lindex {512 1024 2048 4096 8192 16384} [expr $i%6]]
+
+  do_test walcrash-7.$i.1 {
+    crashsql -delay 3 -file test.db -seed [incr seed] -blocksize 512 "
+      PRAGMA page_size = $pgsz;
+      PRAGMA journal_mode = wal;
+      BEGIN;
+        CREATE TABLE t1(a, b);
+        INSERT INTO t1 VALUES(1, 2);
+      COMMIT;
+      PRAGMA wal_checkpoint;
+      CREATE INDEX i1 ON t1(a);
+      PRAGMA wal_checkpoint;
+    "
+  } {1 {child process exited abnormally}}
+
+  do_test walcrash-7.$i.2 {
+    sqlite3 db test.db
+    execsql { SELECT b FROM t1 WHERE a = 1 }
+  } {2}
+  do_test walcrash-7.$i.3 { execsql { PRAGMA main.integrity_check } } {ok}
+  do_test walcrash-7.$i.4 { execsql { PRAGMA main.journal_mode } } {wal}
+
+  db close
+}
+
+finish_test
diff --git a/test/walcrash2.test b/test/walcrash2.test
new file mode 100644
index 0000000000000000000000000000000000000000..9c93bcdef38d4d1c445d2c7175dfd971346b67bf
--- /dev/null
+++ b/test/walcrash2.test
@@ -0,0 +1,98 @@
+# 2010 May 25
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+source $testdir/wal_common.tcl
+ifcapable !wal {finish_test ; return }
+
+
+#-------------------------------------------------------------------------
+# This test case demonstrates a flaw in the wal-index manipulation that
+# existed at one point: If a process crashes mid-transaction, it may have
+# already added some entries to one of the hash-tables in the wal-index.
+# If the transaction were to be explicitly rolled back at this point, the
+# hash-table entries would be removed as part of the rollback. However,
+# if the process crashes, the transaction is implicitly rolled back and
+# the rogue entries remain in the hash table.
+#
+# Normally, this causes no problem - readers can tell the difference 
+# between committed and uncommitted entries in the hash table. However,
+# if it happens often enough that all slots in the hash-table become 
+# non-zero, the next process that attempts to read or write the hash
+# table falls into an infinite loop.
+#
+# Even if run with an SQLite version affected by the bug, this test case
+# only goes into an infinite loop if SQLite is compiled without SQLITE_DEBUG
+# defined. If SQLITE_DEBUG is defined, the program is halted by a failing
+# assert() before entering the infinite loop.
+#
+# walcrash2-1.1: Create a database. Commit a transaction that adds 8 frames
+#                to the WAL (and 8 entry to the first hash-table in the 
+#                wal-index).
+#
+# walcrash2-1.2: Have an external process open a transaction, add 8 entries
+#                to the wal-index hash-table, then crash. Repeat this 1023
+#                times (so that the wal-index contains 8192 entries - all
+#                slots are non-zero).
+#
+# walcrash2-1.3: Using a new database connection, attempt to query the 
+#                database. This should cause the process to go into the
+#                infinite loop.
+#
+do_test walcrash2-1.1 {
+  execsql {
+    PRAGMA page_size = 1024;
+    PRAGMA auto_vacuum = off;
+    PRAGMA journal_mode = WAL;
+    PRAGMA synchronous = NORMAL;
+    BEGIN;
+      CREATE TABLE t1(x);
+      CREATE TABLE t2(x);
+      CREATE TABLE t3(x);
+      CREATE TABLE t4(x);
+      CREATE TABLE t5(x);
+      CREATE TABLE t6(x);
+      CREATE TABLE t7(x);
+    COMMIT;
+  }
+  file size test.db-wal
+} [wal_file_size 8 1024] 
+for {set nEntry 8} {$nEntry < 8192} {incr nEntry 8} {
+  do_test walcrash2-1.2.[expr $nEntry/8] {
+    set C [launch_testfixture]
+    testfixture $C {
+      sqlite3 db test.db
+      db eval {
+        PRAGMA cache_size = 15;
+        BEGIN;
+          INSERT INTO t1 VALUES(randomblob(900));         --  1 row,  1  page
+          INSERT INTO t1 SELECT * FROM t1;                --  2 rows, 3  pages
+          INSERT INTO t1 SELECT * FROM t1;                --  4 rows, 5  pages
+          INSERT INTO t1 SELECT * FROM t1;                --  8 rows, 9  pages
+          INSERT INTO t1 SELECT * FROM t1;                -- 16 rows, 17 pages
+          INSERT INTO t1 SELECT * FROM t1 LIMIT 3;        -- 20 rows, 20 pages
+      }
+    } 
+    close $C
+    file size test.db-wal
+  } [wal_file_size 16 1024]
+}
+do_test walcrash2-1.3 {
+  sqlite3 db2 test.db
+  execsql { SELECT count(*) FROM t1 } db2
+} {0}
+catch { db2 close }
+
+finish_test
diff --git a/test/walcrash3.test b/test/walcrash3.test
new file mode 100644
index 0000000000000000000000000000000000000000..71dfb4555a6c53bc63b22ca19518a6fc30055fe4
--- /dev/null
+++ b/test/walcrash3.test
@@ -0,0 +1,128 @@
+# 2011 December 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This test simulates an application crash immediately following a
+# system call to truncate a file. Specifically, the system call that
+# truncates the WAL file if "PRAGMA journal_size_limit" is configured.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !wal {finish_test ; return }
+set testprefix walcrash3
+
+db close
+testvfs tvfs
+tvfs filter {xTruncate xWrite}
+tvfs script tvfs_callback
+proc tvfs_callback {args} {}
+
+sqlite3 db test.db -vfs tvfs
+do_execsql_test 1.1 {
+  PRAGMA page_size = 1024;
+  PRAGMA journal_mode = WAL;
+  PRAGMA wal_autocheckpoint = 128;
+  PRAGMA journal_size_limit = 16384;
+
+  CREATE TABLE t1(a BLOB, b BLOB, UNIQUE(a, b));
+  INSERT INTO t1 VALUES(randomblob(10), randomblob(1000));
+} {wal 128 16384}
+
+proc tvfs_callback {method file arglist} {
+  if {$::state==1} {
+    foreach f [glob -nocomplain xx_test.*] { forcedelete $f }
+    foreach f [glob -nocomplain test.*]    { forcecopy $f "xx_$f" }
+    set ::state 2
+  }
+  if {$::state==0 && $method=="xTruncate" && [file tail $file]=="test.db-wal"} {
+    set ::state 1
+  }
+}
+
+for {set i 2} {$i<1000} {incr i} {
+
+  # If the WAL file is truncated within the following, within the following
+  # xWrite call the [tvfs_callback] makes a copy of the database and WAL 
+  # files set sets $::state to 2. So that the copied files are in the same
+  # state as the real database and WAL files would be if an application crash 
+  # occurred immediately following the xTruncate().
+  # 
+  set ::state 0
+  do_execsql_test 1.$i.1 {
+    INSERT INTO t1 VALUES(randomblob(10), randomblob(1000));
+  }
+
+  # If a copy was made, open it and run the integrity-check.
+  #
+  if {$::state==2} {
+    sqlite3 db2 xx_test.db
+    do_test 1.$i.2 { execsql { PRAGMA integrity_check  } db2 } "ok"
+    do_test 1.$i.3 { execsql { SELECT count(*) FROM t1 } db2 } [expr $i-1]
+    db2 close
+  }
+}
+catch { db close }
+tvfs delete
+
+#--------------------------------------------------------------------------
+#
+catch { db close }
+forcedelete test.db
+
+do_test 2.1 {
+  sqlite3 db test.db
+  execsql {
+    PRAGMA page_size = 512;
+    PRAGMA journal_mode = WAL;
+    PRAGMA wal_autocheckpoint = 128;
+    CREATE TABLE t1(a PRIMARY KEY, b);
+    INSERT INTO t1 VALUES(randomblob(25), randomblob(200));
+  }
+
+  for {set i 0} {$i < 1500} {incr i} {
+    execsql { INSERT INTO t1 VALUES(randomblob(25), randomblob(200)) }
+  }
+
+  db_save
+  db close
+} {}
+
+set nInitialErr [set_test_counter errors]
+for {set i 2} {$i<10000 && [set_test_counter errors]==$nInitialErr} {incr i} {
+
+  do_test 2.$i.1 {
+    catch { db close } 
+    db_restore
+    crashsql -delay 2 -file test.db-wal -seed $i {
+      SELECT * FROM sqlite_master;
+      PRAGMA synchronous = full;
+      PRAGMA wal_checkpoint;
+      BEGIN;
+        INSERT INTO t1 VALUES(randomblob(26), randomblob(200));
+        INSERT INTO t1 VALUES(randomblob(26), randomblob(200));
+        INSERT INTO t1 VALUES(randomblob(26), randomblob(200));
+        INSERT INTO t1 VALUES(randomblob(26), randomblob(200));
+        INSERT INTO t1 VALUES(randomblob(26), randomblob(200));
+        INSERT INTO t1 VALUES(randomblob(26), randomblob(200));
+        INSERT INTO t1 VALUES(randomblob(26), randomblob(200));
+        INSERT INTO t1 VALUES(randomblob(26), randomblob(200));
+      COMMIT;
+    }
+  } {1 {child process exited abnormally}}
+
+  do_test 2.$i.2 {
+    sqlite3 db test.db
+    execsql { PRAGMA integrity_check } 
+  } {ok}
+}
+
+finish_test
diff --git a/test/walcrash4.test b/test/walcrash4.test
new file mode 100644
index 0000000000000000000000000000000000000000..80839b39e59f20f8830147f6d328942661bdbbbd
--- /dev/null
+++ b/test/walcrash4.test
@@ -0,0 +1,85 @@
+# 2010 May 25
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+source $testdir/wal_common.tcl
+ifcapable !wal {finish_test ; return }
+set testprefix walcrash4
+do_not_use_codec
+
+#-------------------------------------------------------------------------
+# At one point, if "PRAGMA synchronous=full" is set and the platform
+# does not support POWERSAFE_OVERWRITE, and the last frame written to 
+# the wal file in a transaction is aligned with a sector boundary, the
+# xSync() call was omitted. 
+#
+# The following test verifies that this has been fixed.
+#
+do_execsql_test 1.0 {
+  PRAGMA autovacuum = 0;
+  PRAGMA page_size = 1024;
+  PRAGMA journal_mode = wal;
+  PRAGMA main.synchronous = full;
+} {wal}
+
+faultsim_save_and_close
+
+# The error message is different on unix and windows
+#
+if {$::tcl_platform(platform)=="windows"} {
+ set msg "child killed: unknown signal"
+} else {
+ set msg "child process exited abnormally"
+}
+
+for {set nExtra 0} {$nExtra < 10} {incr nExtra} {
+  for {set i 0} {$i < 10} {incr i} {
+    do_test 1.nExtra=$nExtra.i=$i.1 {
+      faultsim_restore_and_reopen
+    
+      set fd [open crash.tcl w]
+      puts $fd [subst -nocommands {
+        sqlite3_crash_enable 1
+        sqlite3_test_control_pending_byte $::sqlite_pending_byte
+        sqlite3 db test.db -vfs crash
+        db eval {
+          PRAGMA main.synchronous=FULL;
+          BEGIN;
+          CREATE TABLE t1(x UNIQUE);
+        }
+        for {set e 2} {[set e] < ($nExtra+2)} {incr e} {
+          db eval "CREATE TABLE t[set e] (x)"
+        }
+        db eval {
+          INSERT INTO t1 VALUES( randomblob(170000) );
+          COMMIT;
+        }
+        sqlite3_crash_now
+      }]
+      close $fd
+    
+      set r [catch { exec [info nameofexec] crash.tcl >@stdout } msg]
+      list $r $msg
+    } "1 {$msg}"
+  
+    do_execsql_test 1.nExtra=$nExtra.i=$i.2 { 
+      SELECT count(*) FROM t1;
+      PRAGMA integrity_check;
+    } {1 ok}
+  } 
+}
+
+
+finish_test
diff --git a/test/walfault.test b/test/walfault.test
new file mode 100644
index 0000000000000000000000000000000000000000..6cb760b258b3ead40becb936e933d5886f04a442
--- /dev/null
+++ b/test/walfault.test
@@ -0,0 +1,590 @@
+# 2010 May 03
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the operation of the library in
+# "PRAGMA journal_mode=WAL" mode.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+source $testdir/lock_common.tcl
+
+ifcapable !wal {finish_test ; return }
+
+#-------------------------------------------------------------------------
+# This test case, walfault-1-*, simulates faults while executing a
+#
+#   PRAGMA journal_mode = WAL;
+#
+# statement immediately after creating a new database.
+#
+do_test walfault-1-pre-1 {
+  faultsim_delete_and_reopen
+  faultsim_save_and_close
+} {}
+do_faultsim_test walfault-1 -prep {
+  faultsim_restore_and_reopen
+} -body {
+  db eval { PRAGMA main.journal_mode = WAL }
+} -test {
+
+  faultsim_test_result {0 wal}
+
+  # Test that the connection that encountered an error as part of 
+  # "PRAGMA journal_mode = WAL" and a new connection use the same
+  # journal mode when accessing the database.
+  #
+  # If "PRAGMA journal_mode" is executed immediately, connection [db] (the 
+  # one that hit the error in journal_mode="WAL") might return "wal" even 
+  # if it failed to switch the database to WAL mode. This is not considered 
+  # a problem. When it tries to read the database, connection [db] correctly 
+  # recognizes that it is a rollback database and switches back to a 
+  # rollback compatible journal mode.
+  #
+  if {[permutation] != "inmemory_journal"} {
+    set jm  [db one  {SELECT * FROM sqlite_master ; PRAGMA main.journal_mode}]
+    sqlite3 db2 test.db
+    set jm2 [db2 one {SELECT * FROM sqlite_master ; PRAGMA main.journal_mode}]
+    db2 close
+  
+    if { $jm!=$jm2 } { error "Journal modes do not match: $jm $jm2" }
+    if { $testrc==0 && $jm!="wal" } { error "Journal mode is not WAL" }
+  }
+}
+
+#--------------------------------------------------------------------------
+# Test case walfault-2-* tests fault injection during recovery of a 
+# short WAL file (a dozen frames or thereabouts).
+#
+do_test walfault-2-pre-1 {
+  sqlite3 db test.db
+  execsql {
+    PRAGMA journal_mode = WAL;
+    BEGIN;
+      CREATE TABLE x(y, z, UNIQUE(y, z));
+      INSERT INTO x VALUES(randomblob(100), randomblob(100));
+    COMMIT;
+    PRAGMA wal_checkpoint;
+
+    INSERT INTO x SELECT randomblob(100), randomblob(100) FROM x;
+    INSERT INTO x SELECT randomblob(100), randomblob(100) FROM x;
+    INSERT INTO x SELECT randomblob(100), randomblob(100) FROM x;
+  }
+  execsql {
+    SELECT count(*) FROM x
+  }
+} {8}
+do_test walfault-2-pre-2 {
+  faultsim_save_and_close
+  faultsim_restore_and_reopen
+  execsql { SELECT count(*) FROM x }
+} {8}
+do_faultsim_test walfault-2 -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { SELECT count(*) FROM x }
+} -test {
+  faultsim_test_result {0 8}
+  faultsim_integrity_check
+}
+
+#--------------------------------------------------------------------------
+# Test fault injection while writing and checkpointing a small WAL file.
+#
+do_test walfault-3-pre-1 {
+  sqlite3 db test.db
+  execsql {
+    PRAGMA auto_vacuum = 1;
+    PRAGMA journal_mode = WAL;
+    CREATE TABLE abc(a PRIMARY KEY);
+    INSERT INTO abc VALUES(randomblob(1500));
+  }
+  db close
+  faultsim_save_and_close
+} {}
+do_faultsim_test walfault-3 -prep {
+  faultsim_restore_and_reopen
+} -body {
+  db eval {
+    DELETE FROM abc;
+    PRAGMA wal_checkpoint;
+  }
+  set {} {}
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+#--------------------------------------------------------------------------
+#
+if {[permutation] != "inmemory_journal"} {
+  faultsim_delete_and_reopen
+  faultsim_save_and_close
+  do_faultsim_test walfault-4 -prep {
+    faultsim_restore_and_reopen
+  } -body {
+    execsql {
+      PRAGMA auto_vacuum = 0;
+      PRAGMA journal_mode = WAL;
+      CREATE TABLE t1(a PRIMARY KEY, b);
+      INSERT INTO t1 VALUES('a', 'b');
+      PRAGMA wal_checkpoint;
+      SELECT * FROM t1;
+    }
+  } -test {
+    # Update: The following changed from {0 {wal 0 7 7 a b}} as a result
+    # of PSOW being set by default.
+    faultsim_test_result {0 {wal 0 5 5 a b}}
+    faultsim_integrity_check
+  } 
+}
+
+#--------------------------------------------------------------------------
+#
+do_test walfault-5-pre-1 {
+  faultsim_delete_and_reopen
+  execsql {
+    PRAGMA page_size = 512;
+    PRAGMA journal_mode = WAL;
+  }
+  faultsim_save_and_close
+} {}
+do_faultsim_test walfault-5 -faults shmerr* -prep {
+  faultsim_restore_and_reopen
+  execsql { PRAGMA wal_autocheckpoint = 0 }
+  shmfault filter xShmMap
+} -body {
+  execsql {
+    CREATE TABLE t1(x);
+    BEGIN;
+      INSERT INTO t1 VALUES(randomblob(400));           /* 1 */
+      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 2 */
+      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 4 */
+      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 8 */
+      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 16 */
+      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 32 */
+      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 64 */
+      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 128 */
+      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 256 */
+      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 512 */
+      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 1024 */
+      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 2048 */
+      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 4096 */
+      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 8192 */
+      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 16384 */
+    COMMIT;
+    SELECT count(*) FROM t1;
+  }
+} -test {
+  faultsim_test_result {0 16384}
+  faultsim_integrity_check
+}
+
+#--------------------------------------------------------------------------
+#
+do_test walfault-6-pre-1 {
+  faultsim_delete_and_reopen
+  execsql {
+    PRAGMA page_size = 512;
+    PRAGMA journal_mode = WAL;
+    PRAGMA wal_autocheckpoint = 0;
+    CREATE TABLE t1(x);
+    BEGIN;
+      INSERT INTO t1 VALUES(randomblob(400));           /* 1 */
+      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 2 */
+      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 4 */
+      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 8 */
+      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 16 */
+      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 32 */
+      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 64 */
+      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 128 */
+      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 256 */
+      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 512 */
+      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 1024 */
+      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 2048 */
+      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 4096 */
+      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 8192 */
+      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 16384 */
+    COMMIT;
+  }
+  faultsim_save_and_close
+} {}
+do_faultsim_test walfault-6 -faults shmerr* -prep {
+  faultsim_restore_and_reopen
+  shmfault filter xShmMap
+} -body {
+  execsql { SELECT count(*) FROM t1 }
+} -test {
+  faultsim_test_result {0 16384}
+  faultsim_integrity_check
+  set n [db one {SELECT count(*) FROM t1}]
+  if {$n != 16384 && $n != 0} { error "Incorrect number of rows: $n" }
+}
+
+#--------------------------------------------------------------------------
+#
+do_test walfault-7-pre-1 {
+  faultsim_delete_and_reopen
+  execsql {
+    PRAGMA page_size = 512;
+    PRAGMA journal_mode = WAL;
+    PRAGMA wal_autocheckpoint = 0;
+    CREATE TABLE t1(x);
+    BEGIN;
+      INSERT INTO t1 VALUES(randomblob(400));           /* 1 */
+      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 2 */
+      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 4 */
+    COMMIT;
+  }
+  faultsim_save_and_close
+} {}
+do_faultsim_test walfault-7 -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { SELECT count(*) FROM t1 }
+} -test {
+  faultsim_test_result {0 4}
+  set n [db one {SELECT count(*) FROM t1}]
+  if {$n != 4 && $n != 0} { error "Incorrect number of rows: $n" }
+}
+
+#--------------------------------------------------------------------------
+#
+do_test walfault-8-pre-1 {
+  faultsim_delete_and_reopen
+  execsql {
+    PRAGMA journal_mode = WAL;
+    CREATE TABLE abc(a PRIMARY KEY);
+    INSERT INTO abc VALUES(randomblob(900));
+  }
+  faultsim_save_and_close
+} {}
+do_faultsim_test walfault-8 -prep {
+  faultsim_restore_and_reopen
+  execsql { PRAGMA cache_size = 10 }
+} -body {
+  execsql {
+    BEGIN;
+      INSERT INTO abc SELECT randomblob(900) FROM abc;    /* 1 */
+      --INSERT INTO abc SELECT randomblob(900) FROM abc;    /* 2 */
+      --INSERT INTO abc SELECT randomblob(900) FROM abc;    /* 4 */
+      --INSERT INTO abc SELECT randomblob(900) FROM abc;    /* 8 */
+    ROLLBACK;
+    SELECT count(*) FROM abc;
+  }
+} -test {
+  faultsim_test_result {0 1}
+
+  faultsim_integrity_check
+  catch { db eval ROLLBACK }
+  faultsim_integrity_check
+
+  set n [db one {SELECT count(*) FROM abc}]
+  if {$n != 1} { error "Incorrect number of rows: $n" }
+}
+
+#--------------------------------------------------------------------------
+#
+do_test walfault-9-pre-1 {
+  faultsim_delete_and_reopen
+  execsql {
+    PRAGMA journal_mode = WAL;
+    CREATE TABLE abc(a PRIMARY KEY);
+    INSERT INTO abc VALUES(randomblob(900));
+  }
+  faultsim_save_and_close
+} {}
+do_faultsim_test walfault-9 -prep {
+  #if {$iFail<73} { set iFail 73 }
+  #if {$iFail>73} { exit }
+  
+  faultsim_restore_and_reopen
+  execsql { PRAGMA cache_size = 10 }
+} -body {
+  execsql {
+    BEGIN;
+      INSERT INTO abc SELECT randomblob(900) FROM abc;    /* 1 */
+      SAVEPOINT spoint;
+        INSERT INTO abc SELECT randomblob(900) FROM abc;    /* 2 */
+        INSERT INTO abc SELECT randomblob(900) FROM abc;    /* 4 */
+        INSERT INTO abc SELECT randomblob(900) FROM abc;    /* 8 */
+      ROLLBACK TO spoint;
+    COMMIT;
+    SELECT count(*) FROM abc;
+  }
+} -test {
+  faultsim_test_result {0 2}
+  faultsim_integrity_check
+
+  catch { db eval { ROLLBACK TO spoint } }
+  catch { db eval { COMMIT } }
+  set n [db one {SELECT count(*) FROM abc}]
+  if {$n != 1 && $n != 2} { error "Incorrect number of rows: $n" }
+}
+
+do_test walfault-10-pre1 {
+  faultsim_delete_and_reopen
+  execsql {
+    PRAGMA journal_mode = WAL;
+    PRAGMA wal_autocheckpoint = 0;
+    CREATE TABLE z(zz INTEGER PRIMARY KEY, zzz BLOB);
+    CREATE INDEX zzzz ON z(zzz);
+    INSERT INTO z VALUES(NULL, randomblob(800));
+    INSERT INTO z VALUES(NULL, randomblob(800));
+    INSERT INTO z SELECT NULL, randomblob(800) FROM z;
+    INSERT INTO z SELECT NULL, randomblob(800) FROM z;
+    INSERT INTO z SELECT NULL, randomblob(800) FROM z;
+    INSERT INTO z SELECT NULL, randomblob(800) FROM z;
+    INSERT INTO z SELECT NULL, randomblob(800) FROM z;
+  }
+  faultsim_save_and_close
+} {}
+do_faultsim_test walfault-10 -prep {
+  faultsim_restore_and_reopen
+  execsql {
+    PRAGMA cache_size = 10;
+    BEGIN;
+      UPDATE z SET zzz = randomblob(799);
+  }
+
+  set ::stmt [sqlite3_prepare db "SELECT zzz FROM z WHERE zz IN (1, 2, 3)" -1]
+  sqlite3_step $::stmt
+} -body {
+  execsql { INSERT INTO z VALUES(NULL, NULL) }
+} -test {
+  sqlite3_finalize $::stmt
+  faultsim_integrity_check
+
+  faultsim_test_result {0 {}}
+  catch { db eval { ROLLBACK } }
+  faultsim_integrity_check
+
+  set n [db eval {SELECT count(*), sum(length(zzz)) FROM z}]
+  if {$n != "64 51200"} { error "Incorrect data: $n" }
+}
+
+#--------------------------------------------------------------------------
+# Test fault injection while checkpointing a large WAL file, if the 
+# checkpoint is the first operation run after opening the database.
+# This means that some of the required wal-index pages are mapped as part of
+# the checkpoint process, which means there are a few more opportunities
+# for IO errors.
+#
+# To speed this up, IO errors are only simulated within xShmMap() calls.
+#
+do_test walfault-11-pre-1 {
+  sqlite3 db test.db
+  execsql {
+    PRAGMA journal_mode = WAL;
+    PRAGMA wal_autocheckpoint = 0;
+    BEGIN;
+      CREATE TABLE abc(a PRIMARY KEY);
+      INSERT INTO abc VALUES(randomblob(1500));
+      INSERT INTO abc VALUES(randomblob(1500));
+      INSERT INTO abc SELECT randomblob(1500) FROM abc;   --    4
+      INSERT INTO abc SELECT randomblob(1500) FROM abc;   --    8
+      INSERT INTO abc SELECT randomblob(1500) FROM abc;   --   16
+      INSERT INTO abc SELECT randomblob(1500) FROM abc;   --   32
+      INSERT INTO abc SELECT randomblob(1500) FROM abc;   --   64
+      INSERT INTO abc SELECT randomblob(1500) FROM abc;   --  128
+      INSERT INTO abc SELECT randomblob(1500) FROM abc;   --  256
+      INSERT INTO abc SELECT randomblob(1500) FROM abc;   --  512
+      INSERT INTO abc SELECT randomblob(1500) FROM abc;   -- 1024
+      INSERT INTO abc SELECT randomblob(1500) FROM abc;   -- 2048
+      INSERT INTO abc SELECT randomblob(1500) FROM abc;   -- 4096
+    COMMIT;
+  }
+  faultsim_save_and_close
+} {}
+do_faultsim_test walfault-11 -faults shmerr* -prep {
+  catch { db2 close }
+  faultsim_restore_and_reopen
+  shmfault filter xShmMap
+} -body {
+  db eval { SELECT count(*) FROM abc }
+  sqlite3 db2 test.db -vfs shmfault
+  db2 eval { PRAGMA wal_checkpoint }
+  set {} {}
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+#-------------------------------------------------------------------------
+# Test the handling of the various IO/OOM/SHM errors that may occur during 
+# a log recovery operation undertaken as part of a call to 
+# sqlite3_wal_checkpoint().
+# 
+do_test walfault-12-pre-1 {
+  faultsim_delete_and_reopen
+  execsql {
+    PRAGMA journal_mode = WAL;
+    PRAGMA wal_autocheckpoint = 0;
+    BEGIN;
+      CREATE TABLE abc(a PRIMARY KEY);
+      INSERT INTO abc VALUES(randomblob(1500));
+      INSERT INTO abc VALUES(randomblob(1500));
+    COMMIT;
+  }
+  faultsim_save_and_close
+} {}
+do_faultsim_test walfault-12 -prep {
+  if {[info commands shmfault] == ""} {
+    testvfs shmfault -default true
+  }
+  faultsim_restore_and_reopen
+  db eval { SELECT * FROM sqlite_master }
+  shmfault shm test.db [string repeat "\000" 40]
+} -body {
+  set rc [sqlite3_wal_checkpoint db]
+  if {$rc != "SQLITE_OK"} { error [sqlite3_errmsg db] }
+} -test {
+  db close
+  faultsim_test_result {0 {}}
+}
+
+#-------------------------------------------------------------------------
+# Test simple recovery, reading and writing a database file using a 
+# heap-memory wal-index.
+# 
+do_test walfault-13-pre-1 {
+  faultsim_delete_and_reopen
+  execsql {
+    PRAGMA journal_mode = WAL;
+    PRAGMA wal_autocheckpoint = 0;
+    BEGIN;
+      CREATE TABLE abc(a PRIMARY KEY);
+      INSERT INTO abc VALUES(randomblob(1500));
+      INSERT INTO abc VALUES(randomblob(1500));
+    COMMIT;
+  }
+  faultsim_save_and_close
+  delete_file sv_test.db-shm
+} {}
+
+do_faultsim_test walfault-13.1 -prep {
+  faultsim_restore_and_reopen
+} -body {
+  db eval { PRAGMA locking_mode = exclusive }
+  db eval { SELECT count(*) FROM abc }
+} -test {
+  faultsim_test_result {0 2}
+  if {[file exists test.db-shm]} { error "Not using heap-memory mode" }
+  faultsim_integrity_check
+}
+
+do_faultsim_test walfault-13.2 -prep {
+  faultsim_restore_and_reopen
+  db eval { PRAGMA locking_mode = exclusive }
+} -body {
+  db eval { PRAGMA journal_mode = delete }
+} -test {
+  faultsim_test_result {0 delete}
+  if {[file exists test.db-shm]} { error "Not using heap-memory mode" }
+  faultsim_integrity_check
+}
+
+do_test walfault-13-pre-2 {
+  faultsim_delete_and_reopen
+  execsql {
+    BEGIN;
+      CREATE TABLE abc(a PRIMARY KEY);
+      INSERT INTO abc VALUES(randomblob(1500));
+      INSERT INTO abc VALUES(randomblob(1500));
+    COMMIT;
+  }
+  faultsim_save_and_close
+} {}
+
+do_faultsim_test walfault-13.3 -prep {
+  faultsim_restore_and_reopen
+} -body {
+  db eval { 
+    PRAGMA locking_mode = exclusive;
+    PRAGMA journal_mode = WAL;
+    INSERT INTO abc VALUES(randomblob(1500));
+  }
+} -test {
+  faultsim_test_result {0 {exclusive wal}}
+  if {[file exists test.db-shm]} { error "Not using heap-memory mode" }
+  faultsim_integrity_check
+  set nRow [db eval {SELECT count(*) FROM abc}]
+  if {!(($nRow==2 && $testrc) || $nRow==3)} { error "Bad db content" }
+}
+
+#-------------------------------------------------------------------------
+# Test fault-handling when wrapping around to the start of a WAL file.
+#
+do_test walfault-14-pre {
+  faultsim_delete_and_reopen
+  execsql {
+    PRAGMA auto_vacuum = 0;
+    PRAGMA journal_mode = WAL;
+    BEGIN;
+      CREATE TABLE abc(a PRIMARY KEY);
+      INSERT INTO abc VALUES(randomblob(1500));
+      INSERT INTO abc VALUES(randomblob(1500));
+    COMMIT;
+  }
+  faultsim_save_and_close
+} {}
+do_faultsim_test walfault-14 -prep {
+  faultsim_restore_and_reopen
+} -body {
+  db eval { 
+    PRAGMA wal_checkpoint = full;
+    INSERT INTO abc VALUES(randomblob(1500));
+  }
+} -test {
+  faultsim_test_result {0 {0 9 9}}
+  faultsim_integrity_check
+  set nRow [db eval {SELECT count(*) FROM abc}]
+  if {!(($nRow==2 && $testrc) || $nRow==3)} { error "Bad db content" }
+}
+
+#-------------------------------------------------------------------------
+# Test fault-handling when switching out of exclusive-locking mode.
+#
+do_test walfault-15-pre {
+  faultsim_delete_and_reopen
+  execsql {
+    PRAGMA auto_vacuum = 0;
+    PRAGMA journal_mode = WAL;
+    BEGIN;
+      CREATE TABLE abc(a PRIMARY KEY);
+      INSERT INTO abc VALUES(randomblob(1500));
+      INSERT INTO abc VALUES(randomblob(1500));
+    COMMIT;
+  }
+  faultsim_save_and_close
+} {}
+do_faultsim_test walfault-15 -prep {
+  faultsim_restore_and_reopen
+  execsql {
+    SELECT count(*) FROM abc;
+    PRAGMA locking_mode = exclusive;
+    BEGIN;
+      INSERT INTO abc VALUES(randomblob(1500));
+    COMMIT;
+  }
+} -body {
+  db eval { 
+    PRAGMA locking_mode = normal;
+    BEGIN;
+      INSERT INTO abc VALUES(randomblob(1500));
+    COMMIT;
+  }
+} -test {
+  faultsim_integrity_check
+  set nRow [db eval {SELECT count(*) FROM abc}]
+  if {$nRow!=3 && $nRow!=4} { error "Bad db content" }
+}
+
+finish_test
diff --git a/test/walfault2.test b/test/walfault2.test
new file mode 100644
index 0000000000000000000000000000000000000000..a4c352be29fac2b5caad98c584f9a7d3dad5b0f4
--- /dev/null
+++ b/test/walfault2.test
@@ -0,0 +1,91 @@
+# 2010 May 03
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the operation of the library in
+# "PRAGMA journal_mode=WAL" mode.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+source $testdir/lock_common.tcl
+
+ifcapable !wal {finish_test ; return }
+set testprefix walfault2
+
+#-------------------------------------------------------------------------
+# Inject faults while truncating the wal file.
+#
+do_execsql_test 1.0 {
+  PRAGMA auto_vacuum = 0;
+  CREATE TABLE t1(a, b);
+  PRAGMA journal_mode = wal;
+  WITH s(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM s LIMIT 30
+  )
+  INSERT INTO t1 SELECT randomblob(400), randomblob(400) FROM s;
+} {wal}
+faultsim_save_and_close
+
+do_faultsim_test 1 -prep {
+  catch { db close }
+  faultsim_restore
+  sqlite3 db file:test.db?psow=0 -uri 1
+  file_control_powersafe_overwrite db 0
+  execsql {
+    PRAGMA wal_checkpoint;
+    PRAGMA journal_size_limit = 10000;
+    PRAGMA synchronous = full;
+  }
+} -body {
+  execsql { INSERT INTO t1 VALUES(1,1) }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+#-------------------------------------------------------------------------
+# Inject faults while rewriting checksums.
+#
+reset_db
+do_execsql_test 2.0 {
+  PRAGMA auto_vacuum = 0;
+  CREATE TABLE t1(a, b);
+  PRAGMA journal_mode = wal;
+  WITH s(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM s LIMIT 30
+  )
+  INSERT INTO t1 SELECT randomblob(400), randomblob(400) FROM s;
+} {wal}
+faultsim_save_and_close
+
+do_faultsim_test 2 -prep {
+  faultsim_restore_and_reopen
+  execsql {
+    PRAGMA cache_size = 2;
+    BEGIN;
+    UPDATE t1 SET a=randomblob(400);
+    UPDATE t1 SET b=randomblob(400);
+    UPDATE t1 SET a=randomblob(400);
+    UPDATE t1 SET b=randomblob(400);
+    UPDATE t1 SET a=randomblob(400);
+    UPDATE t1 SET b=randomblob(400);
+    UPDATE t1 SET a=randomblob(400);
+    UPDATE t1 SET b=randomblob(400);
+  }
+} -body {
+  execsql COMMIT
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+
+
+finish_test
diff --git a/test/walhook.test b/test/walhook.test
new file mode 100644
index 0000000000000000000000000000000000000000..631ec834e3873b57421cf6eb548ff5e929b6486e
--- /dev/null
+++ b/test/walhook.test
@@ -0,0 +1,109 @@
+# 2010 April 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the operation of the library in
+# "PRAGMA journal_mode=WAL" mode.
+# 
+# More specifically, this file contains regression tests for the 
+# sqlite3_wal_hook() mechanism, including the sqlite3_wal_autocheckpoint()
+# and "PRAGMA wal_autocheckpoint" convenience interfaces.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/wal_common.tcl
+
+ifcapable !wal {finish_test ; return }
+
+set ::wal_hook [list]
+proc wal_hook {zDb nEntry} {
+  lappend ::wal_hook $zDb $nEntry
+  return 0
+}
+db wal_hook wal_hook
+
+do_test walhook-1.1 {
+  execsql { 
+    PRAGMA page_size = 1024;
+    PRAGMA auto_vacuum = 0;
+    PRAGMA journal_mode = wal;
+    PRAGMA synchronous = normal;
+    CREATE TABLE t1(i PRIMARY KEY, j);
+  }
+  set ::wal_hook
+} {main 3}
+
+do_test walhook-1.2 {
+  set ::wal_hook [list]
+  execsql { INSERT INTO t1 VALUES(1, 'one') }
+  set ::wal_hook
+} {main 5}
+do_test walhook-1.3 {
+  proc wal_hook {args} { db eval {PRAGMA wal_checkpoint}; return 0 }
+  execsql { INSERT INTO t1 VALUES(2, 'two') }
+  file size test.db
+} [expr 3*1024]
+do_test walhook-1.4 {
+  proc wal_hook {zDb nEntry} { 
+    execsql { PRAGMA wal_checkpoint }
+    return 0
+  }
+  execsql { CREATE TABLE t2(a, b) }
+  file size test.db
+} [expr 4*1024]
+
+do_test walhook-1.5 {
+  sqlite3 db2 test.db
+  proc wal_hook {zDb nEntry} {
+    execsql { PRAGMA wal_checkpoint } db2
+    return 0
+  }
+  execsql { CREATE TABLE t3(a PRIMARY KEY, b) }
+  file size test.db
+} [expr 6*1024]
+
+db2 close
+db close
+sqlite3 db test.db
+do_test walhook-2.1 {
+  execsql { PRAGMA synchronous = NORMAL }
+  execsql { PRAGMA wal_autocheckpoint }
+} {1000}
+do_test walhook-2.2 {
+  execsql { PRAGMA wal_autocheckpoint = 10}
+} {10}
+do_test walhook-2.3 {
+  execsql { PRAGMA wal_autocheckpoint }
+} {10}
+
+#
+# The database connection is configured with "PRAGMA wal_autocheckpoint = 10".
+# Check that transactions are written to the log file until it contains at
+# least 10 frames, then the database is checkpointed. Subsequent transactions
+# are written into the start of the log file.
+#
+foreach {tn sql dbpages logpages} {
+  4 "CREATE TABLE t4(x PRIMARY KEY, y)"   6   3
+  5 "INSERT INTO t4 VALUES(1, 'one')"     6   5
+  6 "INSERT INTO t4 VALUES(2, 'two')"     6   7
+  7 "INSERT INTO t4 VALUES(3, 'three')"   6   9
+  8 "INSERT INTO t4 VALUES(4, 'four')"    8  11
+  9 "INSERT INTO t4 VALUES(5, 'five')"    8  11
+} {
+  do_test walhook-2.$tn {
+    execsql $sql
+    list [file size test.db] [file size test.db-wal]
+  } [list [expr $dbpages*1024] [wal_file_size $logpages 1024]]
+}
+
+catch { db2 close }
+catch { db close }
+finish_test
diff --git a/test/walmode.test b/test/walmode.test
new file mode 100644
index 0000000000000000000000000000000000000000..f760823c8d4980a0bdda5b70d81e0d18e02b6d8e
--- /dev/null
+++ b/test/walmode.test
@@ -0,0 +1,393 @@
+# 2010 April 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the operation of the library in
+# "PRAGMA journal_mode=WAL" mode.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+
+# If the library was compiled without WAL support, check that the 
+# "PRAGMA journal_mode=WAL" treats "WAL" as an unrecognized mode.
+#
+ifcapable !wal {
+
+  do_test walmode-0.1 {
+    execsql { PRAGMA journal_mode = wal }
+  } {delete}
+  do_test walmode-0.2 {
+    execsql { PRAGMA main.journal_mode = wal }
+  } {delete}
+  do_test walmode-0.3 {
+    execsql { PRAGMA main.journal_mode }
+  } {delete}
+
+  finish_test
+  return
+}
+
+do_test walmode-1.1 {
+  set sqlite_sync_count 0
+  execsql { PRAGMA page_size = 1024 }
+  execsql { PRAGMA journal_mode = wal }
+} {wal}
+do_test walmode-1.2 {
+  file size test.db
+} {1024}
+
+if {[atomic_batch_write test.db]==0} {
+  set expected_sync_count 3
+  if {$::tcl_platform(platform)!="windows"} {
+    ifcapable dirsync {
+      incr expected_sync_count
+    }
+  }
+  do_test walmode-1.3 {
+    set sqlite_sync_count
+  } $expected_sync_count
+}
+
+do_test walmode-1.4 {
+  file exists test.db-wal
+} {0}
+do_test walmode-1.5 {
+  execsql { CREATE TABLE t1(a, b) }
+  file size test.db
+} {1024}
+do_test walmode-1.6 {
+  file exists test.db-wal
+} {1}
+do_test walmode-1.7 {
+  db close
+  file exists test.db-wal
+} {0}
+
+# There is now a database file with the read and write versions set to 2
+# in the file system. This file should default to WAL mode.
+#
+do_test walmode-2.1 {
+  sqlite3 db test.db
+  file exists test.db-wal
+} {0}
+do_test walmode-2.2 {
+  execsql { SELECT * FROM sqlite_master }
+  file exists test.db-wal
+} {1}
+do_test walmode-2.3 {
+  db close
+  file exists test.db-wal
+} {0}
+
+# If the first statement executed is "PRAGMA journal_mode = wal", and
+# the file is already configured for WAL (read and write versions set
+# to 2), then there should be no need to write the database. The 
+# statement should cause the client to connect to the log file.
+#
+set sqlite_sync_count 0
+do_test walmode-3.1 {
+  sqlite3 db test.db
+  execsql { PRAGMA journal_mode = wal }
+} {wal}
+do_test walmode-3.2 {
+  list $sqlite_sync_count [file exists test.db-wal] [file size test.db-wal]
+} {0 1 0}
+
+# Test that changing back to journal_mode=persist works.
+#
+do_test walmode-4.1 {
+  execsql { INSERT INTO t1 VALUES(1, 2) }
+  execsql { PRAGMA journal_mode = persist }
+} {persist}
+if {[atomic_batch_write test.db]==0} {
+  do_test walmode-4.2 {
+    list [file exists test.db-journal] [file exists test.db-wal]
+  } {1 0}
+}
+do_test walmode-4.3 {
+  execsql { SELECT * FROM t1 }
+} {1 2}
+do_test walmode-4.4 {
+  db close
+  sqlite3 db test.db
+  execsql { SELECT * FROM t1 }
+} {1 2}
+if {[atomic_batch_write test.db]==0} {
+  do_test walmode-4.5 {
+    list [file exists test.db-journal] [file exists test.db-wal]
+  } {1 0}
+}
+
+# Test that nothing goes wrong if a connection is prevented from changing
+# from WAL to rollback mode because a second connection has the database
+# open. Or from rollback to WAL.
+#
+do_test walmode-4.6 {
+  sqlite3 db2 test.db
+  execsql { PRAGMA main.journal_mode } db2
+} {delete}
+do_test walmode-4.7 {
+  execsql { PRAGMA main.journal_mode = wal } db
+} {wal}
+do_test walmode-4.8 {
+  execsql { SELECT * FROM t1 } db2
+} {1 2}
+do_test walmode-4.9 {
+  catchsql { PRAGMA journal_mode = delete } db
+} {1 {database is locked}}
+do_test walmode-4.10 {
+  execsql { PRAGMA main.journal_mode } db
+} {wal}
+
+do_test walmode-4.11 {
+  db2 close
+  execsql { PRAGMA journal_mode = delete } db
+} {delete}
+do_test walmode-4.12 {
+  execsql { PRAGMA main.journal_mode } db
+} {delete}
+do_test walmode-4.13 {
+  list [file exists test.db-journal] [file exists test.db-wal]
+} {0 0}
+do_test walmode-4.14 {
+  sqlite3 db2 test.db
+  execsql {
+    BEGIN;
+      SELECT * FROM t1;
+  } db2
+} {1 2}
+
+do_test walmode-4.16 { execsql { PRAGMA main.journal_mode } db  } {delete}
+do_test walmode-4.17 { execsql { PRAGMA main.journal_mode } db2 } {delete}
+
+do_test walmode-4.17 {
+  catchsql { PRAGMA main.journal_mode = wal } db
+} {1 {database is locked}}
+do_test walmode-4.18 {
+  execsql { PRAGMA main.journal_mode } db
+} {delete}
+catch { db close }
+catch { db2 close }
+
+# Test that it is not possible to change a temporary or in-memory database
+# to WAL mode. WAL mode is for persistent file-backed databases only.
+#
+#   walmode-5.1.*: Try to set journal_mode=WAL on [sqlite3 db :memory:] database.
+#   walmode-5.2.*: Try to set journal_mode=WAL on [sqlite3 db ""] database.
+#   walmode-5.3.*: Try to set temp.journal_mode=WAL.
+#
+do_test walmode-5.1.1 {
+  sqlite3 db :memory:
+  execsql { PRAGMA main.journal_mode }
+} {memory}
+do_test walmode-5.1.2 {
+  execsql { PRAGMA main.journal_mode = wal }
+} {memory}
+do_test walmode-5.1.3 {
+  execsql {
+    BEGIN;
+      CREATE TABLE t1(a, b);
+      INSERT INTO t1 VALUES(1, 2);
+    COMMIT;
+    SELECT * FROM t1;
+    PRAGMA main.journal_mode;
+  }
+} {1 2 memory}
+do_test walmode-5.1.4 {
+  execsql { PRAGMA main.journal_mode = wal }
+} {memory}
+do_test walmode-5.1.5 {
+  execsql { 
+    INSERT INTO t1 VALUES(3, 4);
+    SELECT * FROM t1;
+    PRAGMA main.journal_mode;
+  }
+} {1 2 3 4 memory}
+
+if {$TEMP_STORE>=2} {
+  set tempJrnlMode memory
+} else {
+  set tempJrnlMode delete
+}
+do_test walmode-5.2.1 {
+  sqlite3 db ""
+  execsql { PRAGMA main.journal_mode }
+} $tempJrnlMode
+do_test walmode-5.2.2 {
+  execsql { PRAGMA main.journal_mode = wal }
+} $tempJrnlMode
+do_test walmode-5.2.3 {
+  execsql {
+    BEGIN;
+      CREATE TABLE t1(a, b);
+      INSERT INTO t1 VALUES(1, 2);
+    COMMIT;
+    SELECT * FROM t1;
+    PRAGMA main.journal_mode;
+  }
+} [list 1 2 $tempJrnlMode]
+do_test walmode-5.2.4 {
+  execsql { PRAGMA main.journal_mode = wal }
+} $tempJrnlMode
+do_test walmode-5.2.5 {
+  execsql { 
+    INSERT INTO t1 VALUES(3, 4);
+    SELECT * FROM t1;
+    PRAGMA main.journal_mode;
+  }
+} [list 1 2 3 4 $tempJrnlMode]
+
+do_test walmode-5.3.1 {
+  sqlite3 db test.db
+  execsql { PRAGMA temp.journal_mode }
+} $tempJrnlMode
+do_test walmode-5.3.2 {
+  execsql { PRAGMA temp.journal_mode = wal }
+} $tempJrnlMode
+do_test walmode-5.3.3 {
+  execsql {
+    BEGIN;
+      CREATE TEMP TABLE t1(a, b);
+      INSERT INTO t1 VALUES(1, 2);
+    COMMIT;
+    SELECT * FROM t1;
+    PRAGMA temp.journal_mode;
+  }
+} [list 1 2 $tempJrnlMode]
+do_test walmode-5.3.4 {
+  execsql { PRAGMA temp.journal_mode = wal }
+} $tempJrnlMode
+do_test walmode-5.3.5 {
+  execsql { 
+    INSERT INTO t1 VALUES(3, 4);
+    SELECT * FROM t1;
+    PRAGMA temp.journal_mode;
+  }
+} [list 1 2 3 4 $tempJrnlMode]
+
+
+#-------------------------------------------------------------------------
+# Test changing to WAL mode from journal_mode=off or journal_mode=memory
+#
+foreach {tn mode} {
+  1 off
+  2 memory
+  3 persist
+  4 delete
+  5 truncate
+} {
+  do_test walmode-6.$tn {
+    faultsim_delete_and_reopen
+    execsql "
+      PRAGMA journal_mode = $mode;
+      PRAGMA journal_mode = wal;
+    "
+  } [list $mode wal]
+}
+db close
+
+#-------------------------------------------------------------------------
+# Test the effect of a "PRAGMA journal_mode" command being the first 
+# thing executed by a new connection. This means that the schema is not
+# loaded when sqlite3_prepare_v2() is called to compile the statement.
+#
+do_test walmode-7.0 {
+  forcedelete test.db
+  sqlite3 db test.db
+  execsql {
+    PRAGMA journal_mode = WAL;
+    CREATE TABLE t1(a, b);
+  }
+} {wal}
+foreach {tn sql result} {
+  1  "PRAGMA journal_mode"                wal
+  2  "PRAGMA main.journal_mode"           wal
+  3  "PRAGMA journal_mode = delete"       delete
+  4  "PRAGMA journal_mode"                delete
+  5  "PRAGMA main.journal_mode"           delete
+  6  "PRAGMA journal_mode = wal"          wal
+  7  "PRAGMA journal_mode"                wal
+  8  "PRAGMA main.journal_mode"           wal
+
+  9  "PRAGMA journal_mode"                wal
+ 10  "PRAGMA main.journal_mode"           wal
+ 11  "PRAGMA main.journal_mode = delete"  delete
+ 12  "PRAGMA journal_mode"                delete
+ 13  "PRAGMA main.journal_mode"           delete
+ 14  "PRAGMA main.journal_mode = wal"     wal
+ 15  "PRAGMA journal_mode"                wal
+ 16  "PRAGMA main.journal_mode"           wal
+} {
+  do_test walmode-7.$tn { 
+    db close
+    sqlite3 db test.db
+    execsql $sql
+  } $result
+}
+db close
+
+#-------------------------------------------------------------------------
+# Test the effect of a "PRAGMA journal_mode" command on an attached 
+# database.
+#
+faultsim_delete_and_reopen
+do_execsql_test walmode-8.1 {
+  CREATE TABLE t1(a, b);
+  PRAGMA journal_mode = WAL;
+  ATTACH 'test.db2' AS two;
+  CREATE TABLE two.t2(a, b);
+} {wal}
+do_execsql_test walmode-8.2 { PRAGMA main.journal_mode }         {wal}
+do_execsql_test walmode-8.3 { PRAGMA two.journal_mode  }         {delete}
+do_execsql_test walmode-8.4 { PRAGMA two.journal_mode = DELETE } {delete}
+
+db close
+sqlite3 db test.db
+do_execsql_test walmode-8.5  { ATTACH 'test.db2' AS two }          {}
+do_execsql_test walmode-8.6  { PRAGMA main.journal_mode }          {wal}
+do_execsql_test walmode-8.7  { PRAGMA two.journal_mode  }          {delete}
+do_execsql_test walmode-8.8  { INSERT INTO two.t2 DEFAULT VALUES } {}
+do_execsql_test walmode-8.9  { PRAGMA two.journal_mode  }          {delete}
+do_execsql_test walmode-8.10 { INSERT INTO t1 DEFAULT VALUES } {}
+do_execsql_test walmode-8.11 { PRAGMA main.journal_mode  }         {wal}
+do_execsql_test walmode-8.12 { PRAGMA journal_mode  }              {wal}
+
+# Change to WAL mode on test2.db and make sure (in the tests that follow)
+# that this mode change persists. 
+do_test walmode-8.x1 {
+  execsql {
+     PRAGMA two.journal_mode=WAL;
+     PRAGMA two.journal_mode;
+  }
+} {wal wal}
+
+db close
+sqlite3 db test.db
+do_execsql_test walmode-8.13 { PRAGMA journal_mode = WAL }         {wal}
+do_execsql_test walmode-8.14 { ATTACH 'test.db2' AS two  }         {}
+do_execsql_test walmode-8.15 { PRAGMA main.journal_mode  }         {wal}
+do_execsql_test walmode-8.16 { PRAGMA two.journal_mode   }         {wal}
+do_execsql_test walmode-8.17 { INSERT INTO two.t2 DEFAULT VALUES } {}
+do_execsql_test walmode-8.18 { PRAGMA two.journal_mode   }         {wal}
+ 
+sqlite3 db2 test.db2
+do_test walmode-8.19 { execsql { PRAGMA main.journal_mode } db2 }  {wal}
+db2 close
+
+do_execsql_test walmode-8.20 { PRAGMA journal_mode = DELETE } {delete}
+do_execsql_test walmode-8.21 { PRAGMA main.journal_mode }     {delete}
+do_execsql_test walmode-8.22 { PRAGMA two.journal_mode }      {delete}
+do_execsql_test walmode-8.21 { PRAGMA journal_mode = WAL }    {wal}
+do_execsql_test walmode-8.21 { PRAGMA main.journal_mode }     {wal}
+do_execsql_test walmode-8.22 { PRAGMA two.journal_mode }      {wal}
+
+finish_test
diff --git a/test/walnoshm.test b/test/walnoshm.test
new file mode 100644
index 0000000000000000000000000000000000000000..d4082178dde26c7427a8c6aa275cd3413efd7d7d
--- /dev/null
+++ b/test/walnoshm.test
@@ -0,0 +1,184 @@
+# 2010 November 1
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing that WAL databases may be accessed without
+# using the xShm primitives if the connection is in exclusive-mode.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix walnoshm
+ifcapable !wal {finish_test ; return }
+
+db close
+testvfs tvfsshm
+testvfs tvfs -default 1 -iversion 1 
+sqlite3 db test.db
+
+#--------------------------------------------------------------------------
+# Test that when using a version 1 VFS, a database can only be converted
+# to WAL mode after setting locking_mode=EXCLUSIVE. Also, test that if a
+# WAL database is opened using heap-memory for the WAL index, the connection
+# cannot change back to locking_mode=NORMAL while the database is still in
+# WAL mode.
+#
+do_execsql_test 1.1 {
+  CREATE TABLE t1(x, y);
+  INSERT INTO t1 VALUES(1, 2);
+}
+
+do_execsql_test 1.2 { 
+  PRAGMA journal_mode = WAL;
+  SELECT * FROM t1;
+} {delete 1 2}
+do_test 1.3 { file exists test.db-wal } {0}
+
+do_execsql_test 1.4 { 
+  PRAGMA locking_mode = exclusive;
+  PRAGMA journal_mode = WAL;
+  SELECT * FROM t1;
+} {exclusive wal 1 2}
+do_test 1.5 { file exists test.db-wal } {1}
+
+do_execsql_test 1.6 { INSERT INTO t1 VALUES(3, 4) }
+
+do_execsql_test 1.7 {
+  PRAGMA locking_mode = normal;
+} {exclusive}
+do_execsql_test 1.8 {
+  PRAGMA journal_mode = delete;
+  PRAGMA main.locking_mode;
+} {delete exclusive}
+do_execsql_test 1.9 {
+  PRAGMA locking_mode = normal;
+} {normal}
+do_execsql_test 1.10 {
+  SELECT * FROM t1;
+} {1 2 3 4}
+do_test 1.11 { file exists test.db-wal } {0}
+
+#-------------------------------------------------------------------------
+#
+# 2.1.*: Test that a connection using a version 1 VFS can open a WAL database
+#        and convert it to rollback mode if it is set to use
+#        locking_mode=exclusive.
+#
+# 2.2.*: Test that if the exclusive lock cannot be obtained while attempting
+#        the above, the operation fails and the WAL file is not opened.
+#
+do_execsql_test 2.1.1 {
+  CREATE TABLE t2(x, y);
+  INSERT INTO t2 VALUES('a', 'b');
+  INSERT INTO t2 VALUES('c', 'd');
+}
+do_execsql_test 2.1.2 {
+  PRAGMA locking_mode = exclusive;
+  PRAGMA journal_mode = WAL;
+  INSERT INTO t2 VALUES('e', 'f');
+  INSERT INTO t2 VALUES('g', 'h');
+} {exclusive wal}
+
+do_test 2.1.3 {
+  forcecopy test.db     test2.db
+  forcecopy test.db-wal test2.db-wal
+  sqlite3 db2 test2.db
+  catchsql { SELECT * FROM t2 } db2
+} {1 {unable to open database file}}
+do_test 2.1.4 {
+  catchsql { PRAGMA journal_mode = delete } db2
+} {1 {unable to open database file}}
+do_test 2.1.5 {
+  execsql { 
+    PRAGMA locking_mode = exclusive; 
+    PRAGMA journal_mode = delete;
+    SELECT * FROM t2;
+  } db2
+} {exclusive delete a b c d e f g h}
+
+do_test 2.2.1 {
+  forcecopy test.db     test2.db
+  forcecopy test.db-wal test2.db-wal
+  sqlite3 db3 test2.db -vfs tvfsshm
+  sqlite3 db2 test2.db
+  execsql { SELECT * FROM t2 } db3
+} {a b c d e f g h}
+
+do_test 2.2.2 {
+  execsql  { PRAGMA locking_mode = exclusive }  db2
+  catchsql { PRAGMA journal_mode = delete } db2
+} {1 {database is locked}}
+
+do_test 2.2.3 {
+  # This is to test that [db2] is not holding a PENDING lock (which can 
+  # happen when an attempt to obtain an EXCLUSIVE lock fails).
+  sqlite3 db4 test2.db -vfs tvfsshm
+  execsql { SELECT * FROM t2 } db4
+} {a b c d e f g h}
+
+do_test 2.2.4 {
+  catchsql { SELECT * FROM t2 } db2
+} {1 {database is locked}}
+
+do_test 2.2.5 {
+  db4 close
+  sqlite3 db4 test2.db -vfs tvfsshm
+  execsql { SELECT * FROM t2 } db4
+} {a b c d e f g h}
+
+do_test 2.2.6 {
+  db3 close
+  db4 close
+  execsql { SELECT * FROM t2 } db2
+} {a b c d e f g h}
+
+db2 close
+db close
+
+#-------------------------------------------------------------------------
+#
+# 3.1: Test that if locking_mode=EXCLUSIVE is set after the wal file is
+#      opened, it is possible to drop back to locking_mode=NORMAL.
+#
+# 3.2: Test that if locking_mode=EXCLUSIVE is set before the wal file is
+#      opened, it is not.
+#
+do_test 3.1 {
+  sqlite3 db test.db -vfs tvfsshm
+  execsql { 
+    SELECT * FROM t1;
+    PRAGMA locking_mode = EXCLUSIVE;
+    INSERT INTO t1 VALUES(5, 6);
+    PRAGMA locking_mode = NORMAL;
+    INSERT INTO t1 VALUES(7, 8);
+  }
+  sqlite3 db2 test.db -vfs tvfsshm
+  execsql { SELECT * FROM t1 } db2
+} {1 2 3 4 5 6 7 8}
+db close
+db2 close
+do_test 3.2 {
+  sqlite3 db  test.db -vfs tvfsshm
+  execsql { 
+    PRAGMA locking_mode = EXCLUSIVE;
+    INSERT INTO t1 VALUES(9, 10);
+    PRAGMA locking_mode = NORMAL;
+    INSERT INTO t1 VALUES(11, 12);
+  }
+  sqlite3 db2 test.db -vfs tvfsshm
+  catchsql { SELECT * FROM t1 } db2
+} {1 {database is locked}}
+db close
+db2 close
+
+tvfs delete
+tvfsshm delete
+
+finish_test
diff --git a/test/waloverwrite.test b/test/waloverwrite.test
new file mode 100644
index 0000000000000000000000000000000000000000..ff8bc5ab55f456d523f2c10fac3f4fa1677a0d63
--- /dev/null
+++ b/test/waloverwrite.test
@@ -0,0 +1,162 @@
+# 2010 May 5
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the operation of the library in
+# "PRAGMA journal_mode=WAL" mode.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/wal_common.tcl
+set testprefix waloverwrite
+
+ifcapable !wal {finish_test ; return }
+
+# Simple test:
+#
+# Test cases *.1 - *.6:
+#
+#   + Create a database of blobs roughly 50 pages in size.
+#
+#   + Set the db cache size to something much smaller than this (5 pages)
+#
+#   + Within a transaction, loop through the set of blobs 5 times. Update
+#      each blob as it is visited.
+#
+#   + Test that the wal file is roughly 50 pages in size - even though many
+#      database pages have been written to it multiple times.
+#
+#   + Take a copy of the database and wal file. Test that recovery can
+#     be run on it.
+#
+# Test cases *.7 - *.9:
+#
+#   + Same thing, but before committing the statement transaction open
+#     a SAVEPOINT, update the blobs another 5 times, then roll it back.
+#
+#   + Check that if recovery is run on the resulting wal file, the rolled
+#     back changes from within the SAVEPOINT are not present in the db.
+#
+# The above is run twice - once where the wal file is empty at the start of
+# step 3 (tn==1) and once where it already contains a transaction (tn==2).
+#
+foreach {tn xtra} {
+  1 {}
+  2 { UPDATE t1 SET y = randomblob(799) WHERE x=4 }
+} {
+  reset_db
+  do_execsql_test 1.$tn.0 {
+    CREATE TABLE t1(x, y);
+    CREATE TABLE t2(x, y);
+    CREATE INDEX i1y ON t1(y);
+  
+    WITH cnt(i) AS (
+      SELECT 1 UNION ALL SELECT i+1 FROM cnt WHERE i<20
+    )
+    INSERT INTO t1 SELECT i, randomblob(800) FROM cnt;
+  } {}
+  
+  do_test 1.$tn.1 {
+    set nPg [db one { PRAGMA page_count } ]
+    expr $nPg>40 && $nPg<50
+  } {1}
+  
+  do_test 1.$tn.2 {
+    db close
+    sqlite3 db test.db
+  
+    execsql {PRAGMA journal_mode = wal}
+    execsql {PRAGMA cache_size = 5}
+    execsql $xtra
+  
+    db transaction {
+      for {set i 0} {$i < 5} {incr i} {
+        foreach x [db eval {SELECT x FROM t1}] {
+          execsql { UPDATE t1 SET y = randomblob(799) WHERE x=$x }
+        }
+      }
+    }
+  
+    set nPg [wal_frame_count test.db-wal 1024]
+    expr $nPg>40 && $nPg<60
+  } {1}
+  
+  do_execsql_test 1.$tn.3 { PRAGMA integrity_check } ok
+  
+  do_test 1.$tn.4 {
+    forcedelete test.db2 test.db2-wal
+    forcecopy test.db test.db2
+    sqlite3 db2 test.db2
+    execsql { SELECT sum(length(y)) FROM t1 } db2
+  } [expr 20*800]
+  
+  do_test 1.$tn.5 {
+    db2 close
+    forcecopy test.db test.db2
+    forcecopy test.db-wal test.db2-wal
+    sqlite3 db2 test.db2
+    execsql { SELECT sum(length(y)) FROM t1 } db2
+  } [expr 20*799]
+  
+  do_test 1.$tn.6 {
+    execsql { PRAGMA integrity_check } db2
+  } ok
+  db2 close
+
+  do_test 1.$tn.7 {
+    execsql { PRAGMA wal_checkpoint }
+    db transaction {
+      for {set i 0} {$i < 1} {incr i} {
+        foreach x [db eval {SELECT x FROM t1}] {
+          execsql { UPDATE t1 SET y = randomblob(798) WHERE x=$x }
+        }
+      }
+
+      execsql {
+        WITH cnt(i) AS (SELECT 1 UNION ALL SELECT i+1 FROM cnt WHERE i<20)
+        INSERT INTO t2 SELECT i, randomblob(800) FROM cnt;
+      }
+
+      execsql {SAVEPOINT abc}
+      for {set i 0} {$i < 5} {incr i} {
+        foreach x [db eval {SELECT x FROM t1}] {
+          execsql { UPDATE t1 SET y = randomblob(797) WHERE x=$x }
+        }
+      }
+      execsql {ROLLBACK TO abc}
+
+    }
+
+    set nPg [wal_frame_count test.db-wal 1024]
+    expr $nPg>55 && $nPg<75
+  } {1}
+
+  do_test 1.$tn.8 {
+    forcedelete test.db2 test.db2-wal
+    forcecopy test.db test.db2
+    sqlite3 db2 test.db2
+    execsql { SELECT sum(length(y)) FROM t1 } db2
+  } [expr 20*799]
+
+  do_test 1.$tn.9 {
+    db2 close
+    forcecopy test.db-wal test.db2-wal
+    sqlite3 db2 test.db2
+    execsql { SELECT sum(length(y)) FROM t1 } db2
+  } [expr 20*798]
+
+  do_test 1.$tn.10 {
+    execsql { PRAGMA integrity_check } db2
+  } ok
+  db2 close
+}
+
+finish_test
diff --git a/test/walpersist.test b/test/walpersist.test
new file mode 100644
index 0000000000000000000000000000000000000000..73e6de13d42ec32caf069b5acad6f7c3e3d68580
--- /dev/null
+++ b/test/walpersist.test
@@ -0,0 +1,142 @@
+# 2011 July 26
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains tests for using WAL with persistent WAL file mode.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+set ::testprefix walpersist
+
+ifcapable !wal {
+  finish_test
+  return
+}
+
+do_test walpersist-1.0 {
+  db eval {
+    PRAGMA journal_mode=WAL;
+    CREATE TABLE t1(a);
+    INSERT INTO t1 VALUES(randomblob(5000));
+  }
+  file exists test.db-wal
+} {1}
+do_test walpersist-1.1 {
+  file exists test.db-shm
+} {1}
+do_test walpersist-1.2 {
+  db close
+  list [file exists test.db] [file exists test.db-wal] [file exists test.db-shm]
+} {1 0 0}
+do_test walpersist-1.3 {
+  sqlite3 db test.db
+  db eval {SELECT length(a) FROM t1}
+} {5000}
+do_test walpersist-1.4 {
+  list [file exists test.db] [file exists test.db-wal] [file exists test.db-shm]
+} {1 1 1}
+do_test walpersist-1.5 {
+  file_control_persist_wal db -1
+} {0 0}
+do_test walpersist-1.6 {
+  file_control_persist_wal db 1
+} {0 1}
+do_test walpersist-1.7 {
+  file_control_persist_wal db -1
+} {0 1}
+do_test walpersist-1.8 {
+  file_control_persist_wal db 0
+} {0 0}
+do_test walpersist-1.9 {
+  file_control_persist_wal db -1
+} {0 0}
+do_test walpersist-1.10 {
+  file_control_persist_wal db 1
+} {0 1}
+do_test walpersist-1.11 {
+  db close
+  list [file exists test.db] [file exists test.db-wal] [file exists test.db-shm]
+} {1 1 1}
+
+# Make sure the journal_size_limit works to limit the size of the
+# persisted wal file.  In persistent-wal mode, any non-negative
+# journal_size_limit causes the WAL file to be truncated to zero bytes
+# when closing.
+#
+forcedelete test.db test.db-shm test.db-wal
+do_test walpersist-2.1 {
+  sqlite3 db test.db
+  db eval {
+    PRAGMA journal_mode=WAL;
+    PRAGMA wal_autocheckpoint=OFF;
+    PRAGMA journal_size_limit=12000;
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(randomblob(50000));
+    UPDATE t1 SET x=randomblob(50000);
+  }
+  expr {[file size test.db-wal]>100000}
+} {1}
+do_test walpersist-2.2 {
+  file_control_persist_wal db 1
+  db close
+  concat [file exists test.db-wal] [file size test.db-wal]
+} {1 0}
+do_test walpersist-2.3 {
+  sqlite3 db test.db
+  execsql { PRAGMA integrity_check }
+} {ok}
+
+do_test 3.1 {
+  catch {db close}
+  forcedelete test.db test.db-shm test.db-wal
+  sqlite3 db test.db
+  execsql {
+    PRAGMA page_size = 1024;
+    PRAGMA journal_mode = WAL;
+    PRAGMA wal_autocheckpoint=128;
+    PRAGMA journal_size_limit=16384;
+    CREATE TABLE t1(a, b, PRIMARY KEY(a, b));
+  }
+} {wal 128 16384}
+do_test 3.2 {
+  for {set i 0} {$i<200} {incr i} {
+    execsql { INSERT INTO t1 VALUES(randomblob(500), randomblob(500)) }
+  }
+  file_control_persist_wal db 1
+  db close
+} {}
+do_test walpersist-3.3 { 
+  file size test.db-wal 
+} {0}
+do_test walpersist-3.4 { 
+  sqlite3 db test.db
+  execsql { PRAGMA integrity_check }
+} {ok}
+
+# 2023-05-07 https://sqlite.org/forum/forumpost/8130545bc6
+#
+reset_db
+do_test 4.1 {
+  db eval {
+    PRAGMA journal_mode=WAL;
+    CREATE TABLE t1(x);
+  }
+  file_control_persist_wal db 1
+  db eval {
+    PRAGMA journal_mode=TRUNCATE;
+    PRAGMA journal_mode=MEMORY;
+    PRAGMA journal_mode=WAL;
+    PRAGMA journal_mode=PERSIST;
+  }
+} {truncate memory wal persist}
+
+finish_test
diff --git a/test/walprotocol.test b/test/walprotocol.test
new file mode 100644
index 0000000000000000000000000000000000000000..a262cdd76d2fee18d73c35d815d08c8149a98899
--- /dev/null
+++ b/test/walprotocol.test
@@ -0,0 +1,201 @@
+# 2016 February 4
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the operation of the library in
+# "PRAGMA journal_mode=WAL" mode.
+#
+# More specifically, it tests "locking protocol" errors - errors that
+# may be caused if one or more SQLite clients does not follow the expected
+# locking protocol when accessing a wal-mode database. These tests take
+# quite a while to run.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+source $testdir/wal_common.tcl
+ifcapable !wal {finish_test ; return }
+
+set testprefix walprotocol
+
+#-------------------------------------------------------------------------
+# When recovering the contents of a WAL file, a process obtains the WRITER
+# lock, then locks all other bytes before commencing recovery. If it fails
+# to lock all other bytes (because some other process is holding a read
+# lock) it should retry up to 100 times. Then return SQLITE_PROTOCOL to the 
+# caller. Test this (test case 1.3).
+#
+# Also test the effect of hitting an SQLITE_BUSY while attempting to obtain
+# the WRITER lock (should be the same). Test case 1.4.
+# 
+do_execsql_test 1.0 {
+  PRAGMA journal_mode = wal;
+  CREATE TABLE x(y);
+  INSERT INTO x VALUES('z');
+} {wal}
+
+proc lock_callback {method filename handle lock} {
+  lappend ::locks $lock
+}
+do_test 1.1 {
+  testvfs T
+  T filter xShmLock 
+  T script lock_callback
+  set ::locks [list]
+  sqlite3 db test.db -vfs T
+  execsql { SELECT * FROM x }
+  lrange $::locks 0 11
+} [list {0 1 lock exclusive} {1 2 lock exclusive}     \
+        {4 1 lock exclusive} {4 1 unlock exclusive}   \
+        {5 1 lock exclusive} {5 1 unlock exclusive}   \
+        {6 1 lock exclusive} {6 1 unlock exclusive}   \
+        {7 1 lock exclusive} {7 1 unlock exclusive}   \
+        {1 2 unlock exclusive}   \
+        {0 1 unlock exclusive}  \
+]
+do_test 1.2 {
+  db close
+  set ::locks [list]
+  sqlite3 db test.db -vfs T
+  execsql { SELECT * FROM x }
+  lrange $::locks 0 11
+} [list {0 1 lock exclusive} {1 2 lock exclusive}     \
+        {4 1 lock exclusive} {4 1 unlock exclusive}   \
+        {5 1 lock exclusive} {5 1 unlock exclusive}   \
+        {6 1 lock exclusive} {6 1 unlock exclusive}   \
+        {7 1 lock exclusive} {7 1 unlock exclusive}   \
+        {1 2 unlock exclusive}   \
+        {0 1 unlock exclusive}  \
+]
+proc lock_callback {method filename handle lock} {
+  if {$lock == "1 2 lock exclusive"} { return SQLITE_BUSY }
+  return SQLITE_OK
+}
+puts "# Warning: This next test case causes SQLite to call xSleep(1) 100 times."
+puts "# Normally this equates to a delay of roughly 10 seconds, but if SQLite"
+puts "# is built on unix without HAVE_USLEEP defined, it may be much longer."
+do_test 1.3 {
+  db close
+  set ::locks [list]
+  sqlite3 db test.db -vfs T
+  catchsql { SELECT * FROM x }
+} {1 {locking protocol}}
+
+puts "# Warning: Same again!"
+proc lock_callback {method filename handle lock} {
+  if {$lock == "0 1 lock exclusive"} { return SQLITE_BUSY }
+  return SQLITE_OK
+}
+do_test 1.4 {
+  db close
+  set ::locks [list]
+  sqlite3 db test.db -vfs T
+  catchsql { SELECT * FROM x }
+} {1 {locking protocol}}
+
+puts "# Warning: Third time!"
+proc lock_callback {method filename handle lock} {
+  if {$lock == "4 4 lock exclusive"} { return SQLITE_BUSY }
+  return SQLITE_OK
+}
+do_test 1.5 {
+  db close
+  set ::locks [list]
+  sqlite3 db test.db -vfs T
+  catchsql { SELECT * FROM x }
+} {0 z}
+db close
+T delete
+
+#-------------------------------------------------------------------------
+# 
+do_test 2.1 {
+  forcedelete test.db test.db-journal test.db wal
+  sqlite3 db test.db
+  sqlite3 db2 test.db
+  execsql {
+    PRAGMA auto_vacuum = off;
+    PRAGMA journal_mode = WAL;
+    CREATE TABLE b(c);
+    INSERT INTO b VALUES('Tehran');
+    INSERT INTO b VALUES('Qom');
+    INSERT INTO b VALUES('Markazi');
+    PRAGMA wal_checkpoint;
+  }
+} {wal 0 5 5}
+do_test 2.2 {
+  execsql { SELECT * FROM b }
+} {Tehran Qom Markazi}
+do_test 2.3 {
+  db eval { SELECT * FROM b } {
+    db eval { INSERT INTO b VALUES('Qazvin') }
+    set r [db2 eval { SELECT * FROM b }]
+    break
+  }
+  set r
+} {Tehran Qom Markazi Qazvin}
+do_test 2.4 {
+  execsql {
+    INSERT INTO b VALUES('Gilan');
+    INSERT INTO b VALUES('Ardabil');
+  }
+} {}
+db2 close
+
+faultsim_save_and_close
+testvfs T -default 1
+faultsim_restore_and_reopen
+T filter xShmLock
+T script lock_callback
+
+proc lock_callback {method file handle spec} {
+  if {$spec == "1 2 unlock exclusive"} {
+    T filter {}
+    set ::r [catchsql { SELECT * FROM b } db2]
+  }
+}
+sqlite3 db test.db
+sqlite3 db2 test.db
+puts "# Warning: Another slow test!"
+do_test 2.5 {
+  execsql { SELECT * FROM b }
+} {Tehran Qom Markazi Qazvin Gilan Ardabil}
+do_test 2.6 {
+  set ::r
+} {0 {Tehran Qom Markazi Qazvin Gilan Ardabil}}
+
+db close
+db2 close
+
+faultsim_restore_and_reopen
+sqlite3 db2 test.db
+T filter xShmLock
+T script lock_callback
+proc lock_callback {method file handle spec} {
+  if {$spec == "1 2 unlock exclusive"} {
+    T filter {}
+    set ::r [catchsql { SELECT * FROM b } db2]
+  }
+}
+unset ::r
+puts "# Warning: Last one!"
+do_test 2.7 {
+  execsql { SELECT * FROM b }
+} {Tehran Qom Markazi Qazvin Gilan Ardabil}
+do_test 2.8 {
+  set ::r
+} {0 {Tehran Qom Markazi Qazvin Gilan Ardabil}}
+
+db close
+db2 close
+T delete
+
+finish_test
diff --git a/test/walprotocol2.test b/test/walprotocol2.test
new file mode 100644
index 0000000000000000000000000000000000000000..0792c9aae00501fb8e70c274a5563f7fe36ef751
--- /dev/null
+++ b/test/walprotocol2.test
@@ -0,0 +1,97 @@
+# 2018 July 4
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+source $testdir/wal_common.tcl
+ifcapable !wal {finish_test ; return }
+
+set testprefix walprotocol2
+
+#-------------------------------------------------------------------------
+# When recovering the contents of a WAL file, a process obtains the WRITER
+# lock, then locks all other bytes before commencing recovery. If it fails
+# to lock all other bytes (because some other process is holding a read
+# lock) it should retry up to 100 times. Then return SQLITE_PROTOCOL to the 
+# caller. Test this (test case 1.3).
+#
+# Also test the effect of hitting an SQLITE_BUSY while attempting to obtain
+# the WRITER lock (should be the same). Test case 1.4.
+# 
+do_execsql_test 1.0 {
+  PRAGMA journal_mode = wal;
+  CREATE TABLE x(y);
+  INSERT INTO x VALUES('z');
+} {wal}
+
+db close
+
+proc lock_callback {method filename handle lock} {
+  # puts "$method $filename $handle $lock"
+}
+testvfs T
+T filter xShmLock 
+T script lock_callback
+
+sqlite3 db  test.db -vfs T
+sqlite3 db2 test.db -vfs T
+
+do_execsql_test 2.0 {
+  SELECT * FROM x;
+} {z}
+do_execsql_test -db db2 2.1 {
+  SELECT * FROM x;
+} {z}
+
+#---------------------------------------------------------------
+# Attempt a "BEGIN EXCLUSIVE" using connection handle [db]. This
+# causes SQLite to open a read transaction, then a write transaction.
+# Rig the xShmLock() callback so that just before the EXCLUSIVE lock
+# for the write transaction is taken, connection [db2] jumps in and
+# modifies the database. This causes the "BEGIN EXCLUSIVE" to throw
+# an SQLITE_BUSY_SNAPSHOT error.
+#
+proc lock_callback {method filename handle lock} {
+  if {$lock=="0 1 lock exclusive"} {
+    proc lock_callback {method filename handle lock} {}
+    db2 eval { INSERT INTO x VALUES('y') }
+  }
+}
+do_catchsql_test 2.2 {
+  BEGIN EXCLUSIVE;
+} {1 {database is locked}}
+do_test 2.3 {
+  sqlite3_extended_errcode db
+} {SQLITE_BUSY}
+
+#---------------------------------------------------------------
+# Same again, but with a busy-handler. This time, following the
+# SQLITE_BUSY_SNAPSHOT error the busy-handler is invoked and then the 
+# whole thing retried from the beginning. This time it succeeds.
+#
+proc lock_callback {method filename handle lock} {
+  if {$lock=="0 1 lock exclusive"} {
+    proc lock_callback {method filename handle lock} {}
+    db2 eval { INSERT INTO x VALUES('x') }
+  }
+}
+db timeout 10
+do_catchsql_test 2.4 {
+  BEGIN EXCLUSIVE;
+} {0 {}}
+do_execsql_test 2.5 {
+  SELECT * FROM x;
+  COMMIT;
+} {z y x}
+
+finish_test
diff --git a/test/walro.test b/test/walro.test
new file mode 100644
index 0000000000000000000000000000000000000000..cae52db6d36f6c5c5cb9078cde060073546913fd
--- /dev/null
+++ b/test/walro.test
@@ -0,0 +1,300 @@
+# 2011 May 09
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains tests for using WAL databases in read-only mode.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+set ::testprefix walro
+
+# These tests are only going to work on unix.
+#
+if {$::tcl_platform(platform) != "unix"} {
+  finish_test
+  return
+}
+
+# And only if the build is WAL-capable.
+#
+ifcapable !wal {
+  finish_test
+  return
+}
+
+do_multiclient_test tn {
+  
+  # Close all connections and delete the database.
+  #
+  code1 { db close  }
+  code2 { db2 close }
+  code3 { db3 close }
+  forcedelete test.db
+  forcedelete walro
+  
+  # Do not run tests with the connections in the same process.
+  #
+  if {$tn==2} continue
+
+  foreach c {code1 code2 code3} {
+    $c {
+      sqlite3_shutdown
+      sqlite3_config_uri 1
+    }
+  }
+
+  file mkdir walro
+
+  do_test 1.1.1 {
+    code2 { sqlite3 db2 test.db }
+    sql2 { 
+      PRAGMA auto_vacuum = 0;
+      PRAGMA journal_mode = WAL;
+      CREATE TABLE t1(x, y);
+      INSERT INTO t1 VALUES('a', 'b');
+    }
+    file exists test.db-shm
+  } {1}
+
+  do_test 1.1.2 {
+    file attributes test.db-shm -permissions r--r--r--
+    code1 { sqlite3 db file:test.db?readonly_shm=1 }
+  } {}
+
+  do_test 1.1.3 { sql1 "SELECT * FROM t1" }                {a b}
+  do_test 1.1.4 { sql2 "INSERT INTO t1 VALUES('c', 'd')" } {}
+  do_test 1.1.5 { sql1 "SELECT * FROM t1" }                {a b c d}
+
+  # Check that the read-only connection cannot write or checkpoint the db.
+  #
+  do_test 1.1.6 { 
+    csql1 "INSERT INTO t1 VALUES('e', 'f')" 
+  } {1 {attempt to write a readonly database}}
+  do_test 1.1.7 { 
+    csql1 "PRAGMA wal_checkpoint"
+  } {1 {attempt to write a readonly database}}
+
+  do_test 1.1.9  { sql2 "INSERT INTO t1 VALUES('e', 'f')" } {}
+  do_test 1.1.10 { sql1 "SELECT * FROM t1" }                {a b c d e f}
+
+  do_test 1.1.11 { 
+    sql2 {
+      INSERT INTO t1 VALUES('g', 'h');
+      PRAGMA wal_checkpoint;
+    }
+    set {} {}
+  } {}
+  do_test 1.1.12 { sql1 "SELECT * FROM t1" }                {a b c d e f g h}
+  do_test 1.1.13  { sql2 "INSERT INTO t1 VALUES('i', 'j')" } {}
+
+  do_test 1.2.1 {
+    code2 { db2 close }
+    code1 { db close }
+    list [file exists test.db-wal] [file exists test.db-shm]
+  } {1 1}
+
+  do_test 1.2.2 {
+    code1 { sqlite3 db file:test.db?readonly_shm=1 }
+    list [catch { sql1 { SELECT * FROM t1 } } msg] $msg
+  } {0 {a b c d e f g h i j}}
+
+  do_test 1.2.3 {
+    code1 { db close }
+    file attributes test.db-shm -permissions rw-r--r--
+    hexio_write test.db-shm 0 01020304 
+    file attributes test.db-shm -permissions r--r--r--
+    code1 { sqlite3 db file:test.db?readonly_shm=1 }
+    csql1 { SELECT * FROM t1 }
+  } {0 {a b c d e f g h i j}}
+  do_test 1.2.4 {
+    code1 { sqlite3_extended_errcode db } 
+  } {SQLITE_OK}
+
+  do_test 1.2.5 {
+    file attributes test.db-shm -permissions rw-r--r--
+    code2 { sqlite3 db2 test.db }
+    sql2 "SELECT * FROM t1" 
+  } {a b c d e f g h i j}
+  file attributes test.db-shm -permissions r--r--r--
+  do_test 1.2.6 { sql1 "SELECT * FROM t1" } {a b c d e f g h i j}
+
+  do_test 1.2.7 { 
+    sql2 {
+      PRAGMA wal_checkpoint;
+      INSERT INTO t1 VALUES('k', 'l');
+    }
+    set {} {}
+  } {}
+  do_test 1.2.8 { sql1 "SELECT * FROM t1" } {a b c d e f g h i j k l}
+
+  # Now check that if the readonly_shm option is not supplied, or if it
+  # is set to zero, it is not possible to connect to the database without
+  # read-write access to the shm.
+  # 
+  # UPDATE: os_unix.c now opens the *-shm file in readonly mode 
+  # automatically.
+  #
+  do_test 1.3.1 {
+    code1 { db close }
+    code1 { sqlite3 db test.db }
+    csql1 { SELECT * FROM t1 }
+  } {0 {a b c d e f g h i j k l}}
+
+  # Also test that if the -shm file can be opened for read/write access,
+  # it is not if readonly_shm=1 is present in the URI.
+  do_test 1.3.2.1 {
+    code1 { db close }
+    code2 { db2 close }
+    file exists test.db-shm
+  } {0}
+  do_test 1.3.2.2 {
+    code1 { sqlite3 db file:test.db?readonly_shm=1 }
+    csql1 { SELECT * FROM sqlite_master }
+  } {1 {unable to open database file}}
+  do_test 1.3.2.3 {
+    code1 { db close }
+    close [open test.db-shm w]
+    file attributes test.db-shm -permissions r--r--r--
+    code1 { sqlite3 db file:test.db?readonly_shm=1 }
+    csql1 { SELECT * FROM t1 }
+  } {0 {a b c d e f g h i j k l}}
+  do_test 1.3.2.4 {
+    code1 { sqlite3_extended_errcode db } 
+  } {SQLITE_OK}
+
+  #-----------------------------------------------------------------------
+  # Test cases 1.4.* check that checkpoints and log wraps don't prevent
+  # read-only connections from reading the database.
+  do_test 1.4.1 {
+    code1 { db close }
+    forcedelete test.db-shm
+    file exists test.db-shm
+  } {0}
+
+  # Open one read-only and one read-write connection. Write some data
+  # and then run a checkpoint using the read-write connection. Then
+  # check the read-only connection can still read.
+  do_test 1.4.2 {
+    code1 { sqlite3 db file:test.db?readonly_shm=1 }
+    code2 { sqlite3 db2 test.db }
+    csql2 { 
+      INSERT INTO t1 VALUES(1, 2);
+      INSERT INTO t1 VALUES(3, 4);
+      INSERT INTO t1 VALUES(5, 6);
+      PRAGMA wal_checkpoint;
+    }
+  } {0 {0 3 3}}
+  do_test 1.4.3 {
+    csql1 { SELECT * FROM t1 }
+  } {0 {a b c d e f g h i j k l 1 2 3 4 5 6}}
+  
+  # Using the read-write connection, open a transaction and write lots
+  # of data - causing a cache spill and a log wrap. Then check that the 
+  # read-only connection can still read the database.
+  do_test 1.4.4.1 {
+    csql2 {
+      PRAGMA cache_size = 10;
+      BEGIN;
+      CREATE TABLE t2(x, y);
+      INSERT INTO t2 VALUES('abc', 'xyz');
+      INSERT INTO t2 SELECT x||y, y||x FROM t2;
+      INSERT INTO t2 SELECT x||y, y||x FROM t2;
+      INSERT INTO t2 SELECT x||y, y||x FROM t2;
+      INSERT INTO t2 SELECT x||y, y||x FROM t2;
+      INSERT INTO t2 SELECT x||y, y||x FROM t2;
+      INSERT INTO t2 SELECT x||y, y||x FROM t2;
+      INSERT INTO t2 SELECT x||y, y||x FROM t2;
+      INSERT INTO t2 SELECT x||y, y||x FROM t2;
+      INSERT INTO t2 SELECT x||y, y||x FROM t2;
+    }
+    file size test.db-wal
+  } [expr {[nonzero_reserved_bytes]?148848:147800}]
+  do_test 1.4.4.2 {
+    csql1 { SELECT * FROM t1 }
+  } {0 {a b c d e f g h i j k l 1 2 3 4 5 6}}
+  do_test 1.4.4.3 {
+    csql2 COMMIT
+    csql1 { SELECT count(*) FROM t2 }
+  } {0 512}
+  do_test 1.4.5 {
+    code2 { db2 close }
+    code1 { db close }
+  } {}
+}
+
+forcedelete test.db
+
+#-----------------------------------------------------------------------
+# Test cases 2.* check that a read-only connection may read the
+# database file while a checkpoint operation is ongoing.
+#
+do_multiclient_test tn {
+  
+  # Close all connections and delete the database.
+  #
+  code1 { db close  }
+  code2 { db2 close }
+  code3 { db3 close }
+  forcedelete test.db
+  forcedelete walro
+  
+  # Do not run tests with the connections in the same process.
+  #
+  if {$tn==2} continue
+
+  foreach c {code1 code2 code3} {
+    $c {
+      sqlite3_shutdown
+      sqlite3_config_uri 1
+    }
+  }
+  
+  proc tv_hook {x file args} {
+    if {[file tail $file]=="test.db-wal"} {
+      do_test 2.1.2 {
+        code2 { sqlite3 db2 file:test.db?readonly_shm=1 }
+        csql2 { SELECT count(*) FROM t2 }
+      } {0 4}
+      do_test 2.1.3 {
+        code2 { db2 close }
+      } {}
+    } 
+  }
+
+  do_test 2.1.1 {
+    testvfs tv -default 1 -fullshm 1
+    tv script tv_hook
+    tv filter {}
+    code1 { sqlite3 db test.db }
+    csql1 { 
+      PRAGMA auto_vacuum = 0;
+      PRAGMA journal_mode = WAL;
+      BEGIN;
+        CREATE TABLE t2(x, y);
+        INSERT INTO t2 VALUES('abc', 'xyz');
+        INSERT INTO t2 SELECT x||y, y||x FROM t2;
+        INSERT INTO t2 SELECT x||y, y||x FROM t2;
+      COMMIT;
+    }
+  } {0 wal}
+
+  tv filter xSync
+  set res [csql1 { PRAGMA wal_checkpoint }]
+  do_test 2.1.4 { set res } {0 {0 2 2}}
+
+  do_test 2.1.5 {
+    code1 { db close }
+    code1 { tv delete }
+  } {}
+}
+
+finish_test
diff --git a/test/walro2.test b/test/walro2.test
new file mode 100644
index 0000000000000000000000000000000000000000..1eb9d1c3ee32ae10ec7f731027626164e82deda8
--- /dev/null
+++ b/test/walro2.test
@@ -0,0 +1,411 @@
+# 2011 May 09
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains tests for using WAL databases in read-only mode.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+source $testdir/wal_common.tcl
+set ::testprefix walro2
+
+# And only if the build is WAL-capable.
+#
+ifcapable !wal {
+  finish_test
+  return
+}
+
+proc copy_to_test2 {bZeroShm} {
+  forcecopy test.db test.db2
+  forcecopy test.db-wal test.db2-wal
+  if {$bZeroShm} {
+    forcedelete test.db2-shm
+    set fd [open test.db2-shm w]
+    seek $fd [expr [file size test.db-shm]-1]
+    puts -nonewline $fd "\0"
+    close $fd
+  } else {
+    forcecopy test.db-shm test.db2-shm
+  }
+}
+
+# Most systems allocate the *-shm file in 32KB trunks. But on UNIX systems
+# for which the getpagesize() call returns greater than 32K, the *-shm
+# file is allocated in page-sized units (since you cannot mmap part of
+# a page). The following code sets variable $MINSHMSZ to the smallest
+# possible *-shm file (i.e. the greater of 32KB and the system page-size).
+#
+do_execsql_test 0.0 {
+  PRAGMA journal_mode = wal;
+  CREATE TABLE t1(x);
+} {wal}
+set MINSHMSZ [file size test.db-shm]
+set dfltpgsz [db one {PRAGMA page_size}]
+
+foreach bZeroShm {0 1} {
+  for {set pgsz 512} {$pgsz<=65536} {set pgsz [expr {$pgsz*2}]} {
+    set TN [expr $bZeroShm+1]-$pgsz
+    do_multiclient_test tn {
+      
+      # Close all connections and delete the database.
+      #
+      code1 { db close  }
+      code2 { db2 close }
+      code3 { db3 close }
+      forcedelete test.db
+      
+      # Do not run tests with the connections in the same process.
+      #
+      if {$tn==2} continue
+    
+      foreach c {code1 code2 code3} {
+        $c {
+          sqlite3_shutdown
+          sqlite3_config_uri 1
+        }
+      }
+    
+      do_test $TN.1.1 {
+        code2 { sqlite3 db2 test.db }
+        sql2 "PRAGMA page_size=$::pgsz"
+        sql2 {
+          CREATE TABLE t1(x, y);
+          PRAGMA journal_mode = WAL;
+          INSERT INTO t1 VALUES('a', 'b');
+          INSERT INTO t1 VALUES('c', 'd');
+        }
+        file exists test.db-shm
+      } {1}
+    
+      do_test $TN.1.2.1 {
+        copy_to_test2 $bZeroShm
+        code1 {
+          sqlite3 db file:test.db2?readonly_shm=1
+        }
+    
+        sql1 { SELECT * FROM t1 }
+      } {a b c d}
+      do_test $TN.1.2.2 {
+        sql1 { SELECT * FROM t1 }
+      } {a b c d}
+    
+      do_test $TN.1.3.1 {
+        code3 { sqlite3 db3 test.db2 }
+        sql3 { SELECT * FROM t1 }
+      } {a b c d}
+    
+      do_test $TN.1.3.2 {
+        sql1 { SELECT * FROM t1 }
+      } {a b c d}
+    
+      code1 { db close  }
+      code2 { db2 close }
+      code3 { db3 close }
+    
+      do_test $TN.2.1 {
+        code2 { sqlite3 db2 test.db }
+        sql2 "PRAGMA page_size=$::pgsz;"
+        sql2 { 
+          INSERT INTO t1 VALUES('e', 'f');
+          INSERT INTO t1 VALUES('g', 'h');
+        }
+        file exists test.db-shm
+      } {1}
+    
+      do_test $TN.2.2 {
+        copy_to_test2 $bZeroShm
+        code1 {
+          sqlite3 db file:test.db2?readonly_shm=1
+        }
+        sql1 { 
+          BEGIN;
+          SELECT * FROM t1;
+        }
+      } {a b c d e f g h}
+    
+      do_test $TN.2.3.1 {
+        code3 { sqlite3 db3 test.db2 }
+        sql3 { SELECT * FROM t1 }
+      } {a b c d e f g h}
+      do_test $TN.2.3.2 {
+        sql3 { INSERT INTO t1 VALUES('i', 'j') }
+        code3 { db3 close }
+        sql1 { COMMIT } 
+      } {}
+      do_test $TN.2.3.3 {
+        sql1 { SELECT * FROM t1 }
+      } {a b c d e f g h i j}
+    
+    
+      #-----------------------------------------------------------------------
+      # 3.1.*: That a readonly_shm connection can read a database file if both
+      #        the *-wal and *-shm files are zero bytes in size.
+      #
+      # 3.2.*: That it flushes the cache if, between transactions on a db with a
+      #        zero byte *-wal file, some other connection modifies the db, then
+      #        does "PRAGMA wal_checkpoint=truncate" to truncate the wal file
+      #        back to zero bytes in size.
+      #
+      # 3.3.*: That, if between transactions some other process wraps the wal
+      #        file, the readonly_shm client reruns recovery.
+      #
+      catch { code1 { db close } }
+      catch { code2 { db2 close } }
+      catch { code3 { db3 close } }
+      do_test $TN.3.1.0 {
+        list [file exists test.db-wal] [file exists test.db-shm]
+      } {0 0}
+      do_test $TN.3.1.1 {
+        close [open test.db-wal w]
+        close [open test.db-shm w]
+        code1 {
+          sqlite3 db file:test.db?readonly_shm=1
+        }
+        sql1 { SELECT * FROM t1 }
+      } {a b c d e f g h}
+    
+      do_test $TN.3.2.0 {
+        list [file size test.db-wal] [file size test.db-shm]
+      } {0 0}
+      do_test $TN.3.2.1 {
+        code2 { sqlite3 db2 test.db }
+        sql2 { INSERT INTO t1 VALUES(1, 2) ; PRAGMA wal_checkpoint=truncate }
+        code2 { db2 close }
+        sql1 { SELECT * FROM t1 }
+      } {a b c d e f g h 1 2}
+      if {$pgsz!=$dfltpgsz} continue
+      do_test $TN.3.2.2 {
+        list [file size test.db-wal] [file size test.db-shm]
+      } [list 0 $MINSHMSZ]
+      do_test $TN.3.3.0 {
+        code2 { sqlite3 db2 test.db }
+        sql2 { 
+          INSERT INTO t1 VALUES(3, 4);
+          INSERT INTO t1 VALUES(5, 6);
+          INSERT INTO t1 VALUES(7, 8);
+          INSERT INTO t1 VALUES(9, 10);
+        }
+        code2 { db2 close }
+        code1 { db close }
+        list [file size test.db-wal] [file size test.db-shm]
+      } [list [wal_file_size 4 1024] $MINSHMSZ]
+      do_test $TN.3.3.1 {
+        code1 { sqlite3 db file:test.db?readonly_shm=1 }
+        sql1 { SELECT * FROM t1 }
+      } {a b c d e f g h 1 2 3 4 5 6 7 8 9 10}
+      do_test $TN.3.3.2 {
+        code2 { sqlite3 db2 test.db }
+        sql2 { 
+          PRAGMA wal_checkpoint; 
+          DELETE FROM t1;
+          INSERT INTO t1 VALUES('i', 'ii');
+        }
+        code2 { db2 close }
+        list [file size test.db-wal] [file size test.db-shm]
+      } [list [wal_file_size 4 1024] $MINSHMSZ]
+      do_test $TN.3.3.3 {
+        sql1 { SELECT * FROM t1 }
+      } {i ii}
+    
+      #-----------------------------------------------------------------------
+      #
+      #
+      catch { code1 { db close } }
+      catch { code2 { db2 close } }
+      catch { code3 { db3 close } }
+    
+      do_test $TN.4.0 {
+        code1 { forcedelete test.db }
+        code1 { sqlite3 db test.db }
+        sql1 {
+          PRAGMA journal_mode = wal;
+          CREATE TABLE t1(x);
+          INSERT INTO t1 VALUES('hello');
+          INSERT INTO t1 VALUES('world');
+        }
+    
+        copy_to_test2 $bZeroShm
+    
+        code1 { db close }
+      } {}
+    
+      do_test $TN.4.1.1 {
+        code2 { sqlite3 db2 file:test.db2?readonly_shm=1 }
+        sql2 { SELECT * FROM t1 }
+      } {hello world}
+    
+      do_test $TN.4.1.2 {
+        code3 { sqlite3 db3 test.db2 }
+        sql3 {
+          INSERT INTO t1 VALUES('!');
+          PRAGMA wal_checkpoint = truncate;
+        }
+        code3 { db3 close }
+      } {}
+      do_test $TN.4.1.3 {
+        sql2 { SELECT * FROM t1 }
+      } {hello world !}
+    
+      catch { code1 { db close } }
+      catch { code2 { db2 close } }
+      catch { code3 { db3 close } }
+    
+      do_test $TN.4.2.1 {
+        code1 { sqlite3 db test.db }
+        sql1 {
+          INSERT INTO t1 VALUES('!');
+          INSERT INTO t1 VALUES('!');
+    
+          PRAGMA cache_size = 10;
+          CREATE TABLE t2(x);
+    
+          BEGIN;
+            WITH s(i) AS (
+              SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<500
+              )
+            INSERT INTO t2 SELECT randomblob(500) FROM s;
+            SELECT count(*) FROM t2;
+        } 
+      } {500}
+      set sz [file size test.db-wal]
+      do_test $TN.4.2.2.(sz=$sz) {
+        expr {$sz>400000}
+      } {1}
+      do_test $TN.4.2.4 {
+        file_control_persist_wal db 1; db close
+    
+        copy_to_test2 $bZeroShm
+        code2 { sqlite3 db2 file:test.db2?readonly_shm=1 }
+        sql2 {
+          SELECT * FROM t1;
+          SELECT count(*) FROM t2;
+        }
+      } {hello world ! ! 0}
+    
+      #-----------------------------------------------------------------------
+      #
+      #
+      catch { code1 { db close } }
+      catch { code2 { db2 close } }
+      catch { code3 { db3 close } }
+    
+      do_test $TN.5.0 {
+        code1 { forcedelete test.db }
+        code1 { sqlite3 db test.db }
+        sql1 {
+          PRAGMA journal_mode = wal;
+          CREATE TABLE t1(x);
+          INSERT INTO t1 VALUES('hello');
+          INSERT INTO t1 VALUES('world');
+          INSERT INTO t1 VALUES('!');
+          INSERT INTO t1 VALUES('world');
+          INSERT INTO t1 VALUES('hello');
+        }
+    
+        copy_to_test2 $bZeroShm
+        
+        code1 { db close }
+      } {}
+    
+      do_test $TN.5.1 {
+        code2 { sqlite3 db2 file:test.db2?readonly_shm=1 }
+        sql2 {
+          SELECT * FROM t1;
+        }
+      } {hello world ! world hello}
+    
+      do_test $TN.5.2 {
+        code1 {
+          proc handle_read {op args} {
+            if {$op=="xRead" && [file tail [lindex $args 0]]=="test.db2-wal"} {
+              set ::res2 [sql2 { SELECT * FROM t1 }]
+            }
+            puts "$msg xRead $args"
+            return "SQLITE_OK"
+          }
+          testvfs tvfs -fullshm 1
+    
+          sqlite3 db file:test.db2?vfs=tvfs
+          db eval { SELECT * FROM sqlite_master }
+    
+          tvfs filter xRead
+          tvfs script handle_read
+        }
+        sql1 {
+          PRAGMA wal_checkpoint = truncate;
+        }
+        code1 { set ::res2 }
+      } {hello world ! world hello}
+    
+      do_test $TN.5.3 {
+        code1 { db close }
+        code1 { tvfs delete }
+      } {}
+    
+      #-----------------------------------------------------------------------
+      #
+      #
+      catch { code1 { db close } }
+      catch { code2 { db2 close } }
+      catch { code3 { db3 close } }
+    
+      do_test $TN.6.1 {
+        code1 { forcedelete test.db }
+        code1 { sqlite3 db test.db }
+        sql1 {
+          PRAGMA journal_mode = wal;
+          CREATE TABLE t1(x);
+          INSERT INTO t1 VALUES('hello');
+          INSERT INTO t1 VALUES('world');
+          INSERT INTO t1 VALUES('!');
+          INSERT INTO t1 VALUES('world');
+          INSERT INTO t1 VALUES('hello');
+        }
+    
+        copy_to_test2 $bZeroShm
+        
+        code1 { db close }
+      } {}
+    
+      do_test $TN.6.2 {
+        code1 {
+          set ::nRem 5
+          proc handle_read {op args} {
+            if {$op=="xRead" && [file tail [lindex $args 0]]=="test.db2-wal"} {
+              incr ::nRem -1
+              if {$::nRem==0} {
+                code2 { sqlite3 db2 test.db2 }
+                sql2  { PRAGMA wal_checkpoint = truncate }
+              }
+            }
+            return "SQLITE_OK"
+          }
+          testvfs tvfs -fullshm 1
+    
+          tvfs filter xRead
+          tvfs script handle_read
+    
+          sqlite3 db file:test.db2?readonly_shm=1&vfs=tvfs
+          db eval { SELECT * FROM t1 }
+        }
+      } {hello world ! world hello}
+    
+      do_test $TN.6.3 {
+        code1 { db close }
+        code1 { tvfs delete }
+      } {}
+    }
+  } ;# for pgsz
+} ;# foreach bZeroShm
+
+finish_test
diff --git a/test/walrofault.test b/test/walrofault.test
new file mode 100644
index 0000000000000000000000000000000000000000..3e66e2d920bb76d6ace9e68f58989679d3d691c6
--- /dev/null
+++ b/test/walrofault.test
@@ -0,0 +1,60 @@
+# 2011 May 09
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains tests for using WAL databases in read-only mode.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+set ::testprefix walro2
+
+# And only if the build is WAL-capable.
+#
+ifcapable !wal {
+  finish_test
+  return
+}
+
+db close
+sqlite3_shutdown
+sqlite3_config_uri 1
+sqlite3 db test.db
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(b);
+  PRAGMA journal_mode = wal;
+  INSERT INTO t1 VALUES('hello');
+  INSERT INTO t1 VALUES('world');
+  INSERT INTO t1 VALUES('!');
+  INSERT INTO t1 VALUES('world');
+  INSERT INTO t1 VALUES('hello');
+  PRAGMA cache_size = 10;
+  BEGIN;
+    WITH s(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<30 ) 
+    INSERT INTO t1(b) SELECT randomblob(800) FROM s;
+} {wal}
+file_control_persist_wal db 1; db close
+faultsim_save_and_close
+
+do_faultsim_test 1 -faults oom* -prep {
+  catch { db close }
+  faultsim_restore
+  sqlite3 db file:test.db?readonly_shm=1
+} -body {
+  execsql { SELECT * FROM t1 }
+} -test {
+  faultsim_test_result {0 {hello world ! world hello}}
+}
+
+
+
+finish_test
diff --git a/test/walseh1.test b/test/walseh1.test
new file mode 100644
index 0000000000000000000000000000000000000000..225b69f742e6a78babfece08e2c64201b46f2bfc
--- /dev/null
+++ b/test/walseh1.test
@@ -0,0 +1,148 @@
+# 2021 August 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+set testprefix walseh1
+
+set ::seh_countdown 0 
+set ::seh_errno 10
+proc seh_faultsim_callback {iFault} {
+  if {$iFault==650} {
+    incr ::seh_countdown -1
+    if {$::seh_countdown==0} { return $::seh_errno }
+  }
+  return 0
+}
+
+proc seh_injectinstall {} {
+  sqlite3_test_control_fault_install seh_faultsim_callback
+}
+proc seh_injectuninstall {} {
+  sqlite3_test_control_fault_install
+}
+proc seh_injectstart {iFail} {
+  set ::seh_errno [expr 2+$iFail*10]
+  set ::seh_countdown $iFail
+}
+proc seh_injectstop {} {
+  set res [expr $::seh_countdown<=0]
+  set ::seh_countdown 0
+  set res
+}
+
+set FAULTSIM(seh) [list                   \
+  -injectinstall   seh_injectinstall   \
+  -injectstart     seh_injectstart     \
+  -injectstop      seh_injectstop      \
+  -injecterrlist   {{1 {disk I/O error}}} \
+  -injectuninstall seh_injectuninstall \
+]
+
+proc test_system_errno {db expect} {
+  set serrno [sqlite3_system_errno $db]
+  if {$serrno!=$expect} {
+    error "surprising system_errno. Expected $expect, got $serrno"
+  }  
+}
+
+do_execsql_test 1.0 {
+  PRAGMA journal_mode = wal;
+  CREATE TABLE t1(x, y);
+  INSERT INTO t1 VALUES(1, 2);
+  INSERT INTO t1 VALUES(3, 4);
+} {wal}
+faultsim_save_and_close
+
+do_faultsim_test 1 -faults seh -prep {
+  catch { db2 close }
+  faultsim_restore_and_reopen
+  execsql { SELECT * FROM sqlite_schema } 
+  sqlite3 db2 test.db
+} -body {
+  execsql { SELECT * FROM t1 } db2
+} -test {
+  faultsim_test_result {0 {1 2 3 4}} 
+  if {$testrc} { test_system_errno db2 $::seh_errno }
+}
+catch { db2 close }
+
+faultsim_save_and_close
+
+do_faultsim_test 2 -faults seh -prep {
+  catch { db close }
+  faultsim_restore_and_reopen
+} -body {
+  execsql { SELECT * FROM t1 } 
+} -test {
+  faultsim_test_result {0 {1 2 3 4}} 
+  if {$testrc} { test_system_errno db $::seh_errno }
+}
+
+do_faultsim_test 3 -faults seh -prep {
+  catch { db close }
+  faultsim_restore_and_reopen
+} -body {
+  execsql { INSERT INTO t1 VALUES(5, 6) }
+  execsql { SELECT * FROM t1 }
+} -test {
+  faultsim_test_result {0 {1 2 3 4 5 6}} 
+  if {$testrc} { test_system_errno db $::seh_errno }
+}
+
+do_faultsim_test 4 -faults seh -prep {
+  catch { db close }
+  faultsim_restore_and_reopen
+} -body {
+  execsql { PRAGMA wal_checkpoint }
+  execsql { INSERT INTO t1 VALUES(7, 8) }
+  execsql { SELECT * FROM t1 }
+} -test {
+  faultsim_test_result {0 {1 2 3 4 7 8}} 
+  if {$testrc} { test_system_errno db $::seh_errno }
+}
+catch { db close }
+
+do_faultsim_test 5 -faults seh -prep {
+  catch { db close }
+  faultsim_restore_and_reopen
+  execsql {
+    PRAGMA cache_size = 5;
+    BEGIN;
+      WITH s(i) AS (
+        SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<50
+      )
+      INSERT INTO t1 SELECT randomblob(500), randomblob(500) FROM s;
+  }
+} -body {
+  execsql ROLLBACK
+} -test {
+  faultsim_test_result {0 {}}
+  if {$testrc} { test_system_errno db $::seh_errno }
+}
+catch { db close }
+
+do_faultsim_test 6 -faults seh -prep {
+  catch { db close }
+  faultsim_restore_and_reopen
+} -body {
+  execsql { PRAGMA wal_checkpoint = TRUNCATE }
+  execsql { INSERT INTO t1 VALUES(7, 8) }
+  execsql { SELECT * FROM t1 }
+} -test {
+  faultsim_test_result {0 {1 2 3 4 7 8}} 
+  if {$testrc} { test_system_errno db $::seh_errno }
+}
+catch { db close }
+
+finish_test
diff --git a/test/walsetlk.test b/test/walsetlk.test
new file mode 100644
index 0000000000000000000000000000000000000000..1e092382265e1babc944eaa99d0c105004e76aab
--- /dev/null
+++ b/test/walsetlk.test
@@ -0,0 +1,199 @@
+# 2020 May 06
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# TESTRUNNER: slow
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+set testprefix walsetlk
+
+ifcapable !wal {finish_test ; return }
+db timeout 1000
+
+#-------------------------------------------------------------------------
+# 1.*: Test that nothing goes wrong if recovery is forced while opening
+#      a write transaction or performing a checkpoint with blocking locks.
+#
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(x, y);
+  PRAGMA journal_mode = wal;
+  INSERT INTO t1 VALUES(1, 2);
+  INSERT INTO t1 VALUES(3, 4);
+  INSERT INTO t1 VALUES(5, 6);
+  INSERT INTO t1 VALUES(7, 8);
+} {wal}
+
+sqlite3 db2 test.db
+db2 timeout 1000
+
+do_execsql_test -db db2 1.1 {
+  SELECT * FROM t1
+} {1 2 3 4 5 6 7 8}
+
+set fd [open test.db-shm r+]
+puts $fd "blahblahblahblah"
+flush $fd
+
+do_execsql_test 1.2 {
+  BEGIN;
+    INSERT INTO t1 VALUES(9, 10);
+}
+
+do_execsql_test -db db2 1.3 {
+  SELECT * FROM t1
+} {1 2 3 4 5 6 7 8}
+
+do_test 1.4 {
+  list [catch {db2 eval { BEGIN EXCLUSIVE }} msg] $msg
+} {1 {database is locked}}
+
+do_execsql_test 1.5 { COMMIT }
+do_execsql_test -db db2 1.6 {
+  SELECT * FROM t1
+} {1 2 3 4 5 6 7 8 9 10}
+
+puts $fd "blahblahblahblah"
+flush $fd
+
+do_execsql_test -db db2 1.7 {
+  PRAGMA wal_checkpoint = TRUNCATE
+} {0 0 0}
+
+do_test 1.8 {
+  file size test.db-wal
+} 0
+
+close $fd
+db close
+db2 close
+#-------------------------------------------------------------------------
+
+do_multiclient_test tn {
+  do_test 2.$tn.1 {
+    sql1 {
+      PRAGMA journal_mode = wal;
+      CREATE TABLE t1(s, v);
+      INSERT INTO t1 VALUES(1, 2);
+      INSERT INTO t1 VALUES(3, 4);
+      INSERT INTO t1 VALUES(5, 6);
+    }
+    code1 { db timeout 1100 }
+  } {}
+
+  do_test 2.$tn.2 {
+    sql2 {
+      BEGIN;
+        INSERT INTO t1 VALUES(7, 8);
+    }
+  } {}
+
+  do_test 2.$tn.3 {
+    set us [lindex [time { catch {db eval "BEGIN EXCLUSIVE"} }] 0]
+    expr $us>1000000 && $us<4000000
+  } {1}
+
+  do_test 2.$tn.4 {
+    sql2 { COMMIT }
+    sql1 { SELECT * FROM t1 }
+  } {1 2 3 4 5 6 7 8}
+
+  do_test 2.$tn.5 {
+    sql2 {
+      BEGIN;
+        INSERT INTO t1 VALUES(9, 10);
+    }
+  } {}
+
+  do_test 2.$tn.6 {
+    set us [lindex [time { catch {db eval "PRAGMA wal_checkpoint=RESTART"} }] 0]
+    expr $us>1000000 && $us<4000000
+  } {1}
+
+  do_test 2.$tn.7 {
+    sql2 {
+      COMMIT;
+      BEGIN;
+        SELECT * FROM t1;
+    }
+  } {1 2 3 4 5 6 7 8 9 10}
+
+  do_test 2.$tn.8 {
+    set us [lindex [time { catch {db eval "PRAGMA wal_checkpoint=RESTART"} }] 0]
+    expr $us>1000000 && $us<4000000
+  } {1}
+
+  do_test 2.$tn.9 {
+    sql3 {
+      INSERT INTO t1 VALUES(11, 12);
+    }
+    sql2 {
+      COMMIT;
+      BEGIN;
+        SELECT * FROM t1;
+    }
+    sql3 {
+      INSERT INTO t1 VALUES(13, 14);
+    }
+  } {}
+
+  do_test 2.$tn.10 {
+    set us [lindex [time { catch {db eval "PRAGMA wal_checkpoint=RESTART"} }] 0]
+    expr $us>1000000 && $us<4000000
+  } {1}
+
+  do_test 2.$tn.11 {
+    sql3 {
+      BEGIN;
+        SELECT * FROM t1;
+    }
+    sql1 { INSERT INTO t1 VALUES(15, 16); }
+  } {}
+
+  do_test 2.$tn.12 {
+    set us [lindex [time { catch {db eval "PRAGMA wal_checkpoint=RESTART"} }] 0]
+    expr $us>1000000 && $us<4000000
+  } {1}
+
+  do_test 2.$tn.13 {
+    sql2 {
+      COMMIT;
+      BEGIN;
+        SELECT * FROM t1;
+    }
+    sql1 { INSERT INTO t1 VALUES(17, 18); }
+  } {}
+
+  do_test 2.$tn.14 {
+    set us [lindex [time { catch {db eval "PRAGMA wal_checkpoint=RESTART"} }] 0]
+    expr $us>1000000 && $us<4000000
+  } {1}
+  
+}
+
+#-------------------------------------------------------------------------
+reset_db
+sqlite3 db2 test.db
+db2 timeout 1000
+do_execsql_test 3.0 {
+  PRAGMA journal_mode = wal;
+  CREATE TABLE x1(x, y);
+  BEGIN;
+    INSERT INTO x1 VALUES(1, 2);
+} {wal}
+
+do_test 3.1 {
+  list [catch { db2 eval {BEGIN EXCLUSIVE} } msg] $msg
+} {1 {database is locked}}
+
+finish_test
diff --git a/test/walshared.test b/test/walshared.test
new file mode 100644
index 0000000000000000000000000000000000000000..ccac9484c6f389db1b89f38802b3c62abb480817
--- /dev/null
+++ b/test/walshared.test
@@ -0,0 +1,62 @@
+# 2010 August 2
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the operation of the library in
+# "PRAGMA journal_mode=WAL" mode with shared-cache turned on.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !wal||!shared_cache {finish_test ; return }
+
+db close
+set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
+
+sqlite3 db  test.db
+sqlite3 db2 test.db
+
+do_test walshared-1.0 {
+  execsql {
+    PRAGMA cache_size = 10;
+    PRAGMA journal_mode = WAL;
+    CREATE TABLE t1(a PRIMARY KEY, b UNIQUE);
+    INSERT INTO t1 VALUES(randomblob(100), randomblob(200));
+  }
+} {wal}
+
+do_test walshared-1.1 {
+  execsql {
+    BEGIN;
+      INSERT INTO t1 VALUES(randomblob(100), randomblob(200));
+      INSERT INTO t1 SELECT randomblob(100), randomblob(200) FROM t1;
+      INSERT INTO t1 SELECT randomblob(100), randomblob(200) FROM t1;
+      INSERT INTO t1 SELECT randomblob(100), randomblob(200) FROM t1;
+  }
+} {}
+
+do_test walshared-1.2 {
+  catchsql { PRAGMA wal_checkpoint }
+} {1 {database table is locked}}
+
+do_test walshared-1.3 {
+  catchsql { PRAGMA wal_checkpoint } db2
+} {1 {database table is locked}}
+
+do_test walshared-1.4 {
+  execsql { COMMIT }
+  execsql { PRAGMA integrity_check } db2
+} {ok}
+
+
+
+sqlite3_enable_shared_cache $::enable_shared_cache
+finish_test
diff --git a/test/walslow.test b/test/walslow.test
new file mode 100644
index 0000000000000000000000000000000000000000..6a0f147a0650e9ba6d5b6af2a73b97e7148516ab
--- /dev/null
+++ b/test/walslow.test
@@ -0,0 +1,230 @@
+# 2010 March 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the operation of the library in
+# "PRAGMA journal_mode=WAL" mode. The tests in this file use 
+# brute force methods, so may take a while to run.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/wal_common.tcl
+source $testdir/lock_common.tcl
+
+ifcapable !wal {finish_test ; return }
+
+set testprefix walslow
+
+proc reopen_db {} {
+  catch { db close }
+  forcedelete test.db test.db-wal
+  sqlite3 db test.db
+  execsql { PRAGMA journal_mode = wal }
+}
+
+db close
+save_prng_state
+for {set seed 1} {$seed<10} {incr seed} {
+  expr srand($seed)
+  restore_prng_state
+  reopen_db
+  do_test walslow-1.seed=$seed.0 {
+    execsql { CREATE TABLE t1(a, b) }
+    execsql { CREATE INDEX i1 ON t1(a) }
+    execsql { CREATE INDEX i2 ON t1(b) }
+  } {}
+
+  for {set iTest 1} {$iTest < 100} {incr iTest} {
+
+    do_test walslow-1.seed=$seed.$iTest.1 {
+      set w [expr int(rand()*2000)]
+      set x [expr int(rand()*2000)]
+      execsql { INSERT INTO t1 VALUES(randomblob($w), randomblob($x)) }
+      execsql { PRAGMA integrity_check }
+    } {ok}
+
+    do_test walslow-1.seed=$seed.$iTest.2 {
+      execsql "PRAGMA wal_checkpoint;"
+      execsql { PRAGMA integrity_check }
+    } {ok}
+
+    do_test walslow-1.seed=$seed.$iTest.3 {
+      forcedelete testX.db testX.db-wal
+      copy_file test.db testX.db
+      copy_file test.db-wal testX.db-wal
+  
+      sqlite3 db2 testX.db
+      execsql { PRAGMA journal_mode = WAL } db2
+      execsql { PRAGMA integrity_check } db2
+    } {ok}
+  
+    do_test walslow-1.seed=$seed.$iTest.4 {
+      execsql { SELECT count(*) FROM t1 WHERE a!=b } db2
+    } [execsql { SELECT count(*) FROM t1 WHERE a!=b }]
+    db2 close
+  }
+}
+
+#-------------------------------------------------------------------------
+# Test case walslow-3.* tests that the checksum calculation detects single 
+# byte changes to frame or frame-header data and considers the frame
+# invalid as a result.
+#
+reset_db
+do_test 3.1 {
+
+  execsql {
+    PRAGMA synchronous = NORMAL;
+    PRAGMA page_size = 1024;
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, randomblob(300));
+    INSERT INTO t1 VALUES(2, randomblob(300));
+    PRAGMA journal_mode = WAL;
+    INSERT INTO t1 VALUES(3, randomblob(300));
+  }
+
+  file size test.db-wal
+} [wal_file_size 1 1024]
+do_test 3.2 {
+  forcecopy test.db-wal test2.db-wal
+  forcecopy test.db test2.db
+  sqlite3 db2 test2.db
+  execsql { SELECT a FROM t1 } db2
+} {1 2 3}
+db2 close
+forcecopy test.db test2.db
+
+foreach incr {1 2 3 20 40 60 80 100 120 140 160 180 200 220 240 253 254 255} {
+  do_test 3.3.$incr {
+    set FAIL 0
+    for {set iOff 0} {$iOff < [wal_file_size 1 1024]} {incr iOff} {
+
+      forcecopy test.db-wal test2.db-wal
+      set fd [open test2.db-wal r+]
+      fconfigure $fd -translation binary
+  
+      seek $fd $iOff
+      binary scan [read $fd 1] c x
+      seek $fd $iOff
+      puts -nonewline $fd [binary format c [expr {($x+$incr)&0xFF}]]
+      close $fd
+    
+      sqlite3 db2 test2.db
+      if { [execsql { SELECT a FROM t1 } db2] != "1 2" } {set FAIL 1}
+      db2 close
+    }
+    set FAIL
+  } {0}
+}
+
+
+#-------------------------------------------------------------------------
+# Test large log summaries.
+#
+# In this case "large" usually means a log file that requires a wal-index
+# mapping larger than 64KB (the default initial allocation). A 64KB wal-index
+# is large enough for a log file that contains approximately 13100 frames.
+# So the following tests create logs containing at least this many frames.
+#
+# 4.1.*: This test case creates a very large log file within the
+#        file-system (around 200MB). The log file does not contain
+#        any valid frames. Test that the database file can still be
+#        opened and queried, and that the invalid log file causes no 
+#        problems.
+#
+# 4.2.*: Test that a process may create a large log file and query
+#        the database (including the log file that it itself created).
+#
+# 4.3.*: Test that if a very large log file is created, and then a
+#        second connection is opened on the database file, it is possible
+#        to query the database (and the very large log) using the
+#        second connection.
+#
+# 4.4.*: Same test as wal-13.3.*. Except in this case the second
+#        connection is opened by an external process.
+#
+set ::blobcnt 0
+proc blob {nByte} {
+  incr ::blobcnt
+  return [string range [string repeat "${::blobcnt}x" $nByte] 1 $nByte]
+}
+
+reset_db
+do_execsql_test 4.1 {
+  PRAGMA journal_mode = wal;
+  CREATE TABLE t1(x, y);
+  INSERT INTO "t1" VALUES('A',0);
+  CREATE TABLE t2(x, y);
+  INSERT INTO "t2" VALUES('B',2);
+} {wal}
+db close
+
+do_test 4.1.1 {
+  list [file exists test.db] [file exists test.db-wal]
+} {1 0}
+do_test 4.1.2 {
+  set fd [open test.db-wal w]
+  seek $fd [expr 200*1024*1024]
+  puts $fd ""
+  close $fd
+  sqlite3 db test.db
+  execsql { SELECT * FROM t2 }
+} {B 2}
+do_test 4.1.3 {
+  db close
+  file exists test.db-wal
+} {0}
+
+do_test 4.2.1 {
+  sqlite3 db test.db
+  execsql { SELECT count(*) FROM t2 }
+} {1}
+do_test 4.2.2 {
+  db function blob blob
+  for {set i 0} {$i < 16} {incr i} {
+    execsql { INSERT INTO t2 SELECT blob(400), blob(400) FROM t2 }
+  }
+  execsql { SELECT count(*) FROM t2 }
+} [expr int(pow(2, 16))]
+do_test 4.2.3 {
+  expr [file size test.db-wal] > [wal_file_size 33000 1024]
+} 1
+
+do_multiclient_test tn {
+  incr tn 2
+
+  do_test 4.$tn.0 {
+    sql1 {
+      PRAGMA journal_mode = WAL;
+      CREATE TABLE t1(x);
+      INSERT INTO t1 SELECT randomblob(800);
+    }
+    sql1 { SELECT count(*) FROM t1 }
+  } {1}
+
+  for {set ii 1} {$ii<16} {incr ii} {
+    do_test 4.$tn.$ii.a {
+      sql2 { INSERT INTO t1 SELECT randomblob(800) FROM t1 }
+      sql2 { SELECT count(*) FROM t1 }
+    } [expr (1<<$ii)]
+    do_test 4.$tn.$ii.b {
+      sql1 { SELECT count(*) FROM t1 }
+    } [expr (1<<$ii)]
+    do_test 4.$tn.$ii.c {
+      sql1 { SELECT count(*) FROM t1 }
+    } [expr (1<<$ii)]
+    do_test 4.$tn.$ii.d {
+      sql1 { PRAGMA integrity_check }
+    } {ok}
+  }
+}
+
+finish_test
diff --git a/test/walthread.test b/test/walthread.test
new file mode 100644
index 0000000000000000000000000000000000000000..8e5df9e5895ae764cee678e757223a956121a78e
--- /dev/null
+++ b/test/walthread.test
@@ -0,0 +1,529 @@
+# 2010 April 13
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the operation of the library in
+# "PRAGMA journal_mode=WAL" mode with multiple threads.
+#
+
+set testdir [file dirname $argv0]
+
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+if {[run_thread_tests]==0} { finish_test ; return }
+ifcapable !wal             { finish_test ; return }
+
+set sqlite_walsummary_mmap_incr 64
+
+# How long, in seconds, to run each test for. If a test is set to run for
+# 0 seconds, it is omitted entirely.
+#
+unset -nocomplain seconds
+set seconds(walthread-1) 20
+set seconds(walthread-2) 20
+set seconds(walthread-3) 20
+set seconds(walthread-4) 20
+set seconds(walthread-5) 1
+
+# The parameter is the name of a variable in the callers context. The
+# variable may or may not exist when this command is invoked.
+#
+# If the variable does exist, its value is returned. Otherwise, this
+# command uses [vwait] to wait until it is set, then returns the value.
+# In other words, this is a version of the [set VARNAME] command that
+# blocks until a variable exists.
+#
+proc wait_for_var {varname} {
+  if {0==[uplevel [list info exists $varname]]} {
+    uplevel [list vwait $varname]
+  }
+  uplevel [list set $varname]
+}
+
+# The argument is the name of a list variable in the callers context. The 
+# first element of the list is removed and returned. For example:
+#
+#   set L {a b c}
+#   set x [lshift L]
+#   assert { $x == "a" && $L == "b c" }
+#
+proc lshift {lvar} {
+  upvar $lvar L
+  set ret [lindex $L 0]
+  set L [lrange $L 1 end]
+  return $ret
+}
+
+
+#-------------------------------------------------------------------------
+#   do_thread_test TESTNAME OPTIONS...
+# 
+# where OPTIONS are: 
+#
+#   -seconds   SECONDS                How many seconds to run the test for
+#   -init      SCRIPT                 Script to run before test.
+#   -thread    NAME COUNT SCRIPT      Scripts to run in threads (or processes).
+#   -processes BOOLEAN                True to use processes instead of threads.
+#   -check     SCRIPT                 Script to run after test.
+#
+proc do_thread_test {args} {
+
+  set A $args
+
+  set P(testname) [lshift A]
+  set P(seconds) 5
+  set P(init) ""
+  set P(threads) [list]
+  set P(processes) 0
+  set P(check) {
+    set ic [db eval "PRAGMA integrity_check"]
+    if {$ic != "ok"} { error $ic }
+  }
+
+  unset -nocomplain ::done
+
+  while {[llength $A]>0} {
+    set a [lshift A]
+    switch -glob -- $a {
+      -seconds {
+        set P(seconds) [lshift A]
+      }
+
+      -init {
+        set P(init) [lshift A]
+      }
+
+      -processes {
+        set P(processes) [lshift A]
+      }
+
+      -check {
+        set P(check) [lshift A]
+      }
+
+      -thread {
+        set name  [lshift A]
+        set count [lshift A]
+        set prg   [lshift A]
+        lappend P(threads) [list $name $count $prg]
+      }
+
+      default {
+        error "Unknown option: $a"
+      }
+    }
+  }
+
+  if {$P(seconds) == 0} {
+    puts "Skipping $P(testname)"
+    return
+  }
+
+  puts "Running $P(testname) for $P(seconds) seconds..."
+
+  catch { db close }
+  forcedelete test.db test.db-journal test.db-wal
+
+  sqlite3 db test.db
+  eval $P(init)
+  catch { db close }
+
+  foreach T $P(threads) {
+    set name  [lindex $T 0]
+    set count [lindex $T 1]
+    set prg   [lindex $T 2]
+
+    for {set i 1} {$i <= $count} {incr i} {
+      set vars "
+        set E(pid) $i
+        set E(nthread) $count
+        set E(seconds) $P(seconds)
+      "
+      set program [string map [list %TEST% $prg %VARS% $vars] {
+
+        %VARS%
+
+        proc usleep {ms} {
+          set ::usleep 0
+          after $ms {set ::usleep 1}
+          vwait ::usleep
+        }
+
+        proc integrity_check {{db db}} {
+          set ic [$db eval {PRAGMA integrity_check}]
+          if {$ic != "ok"} {error $ic}
+        }
+
+        proc busyhandler {n} { usleep 10 ; return 0 }
+
+        sqlite3 db test.db
+        db busy busyhandler
+        db eval { SELECT randomblob($E(pid)*5) }
+
+        set ::finished 0
+        after [expr $E(seconds) * 1000] {set ::finished 1}
+        proc tt_continue {} { update ; expr ($::finished==0) }
+
+        set rc [catch { %TEST% } msg]
+
+        catch { db close }
+        list $rc $msg
+      }]
+
+      if {$P(processes)==0} {
+        sqlthread spawn ::done($name,$i) $program
+      } else {
+        testfixture_nb ::done($name,$i) $program
+      }
+    }
+  }
+
+  set report "  Results:"
+  foreach T $P(threads) {
+    set name  [lindex $T 0]
+    set count [lindex $T 1]
+    set prg   [lindex $T 2]
+
+    set reslist [list]
+    for {set i 1} {$i <= $count} {incr i} {
+      set res [wait_for_var ::done($name,$i)]
+      lappend reslist [lindex $res 1]
+      do_test $P(testname).$name.$i [list lindex $res 0] 0
+    }
+
+    append report "   $name $reslist"
+  }
+  puts $report
+
+  sqlite3 db test.db
+  set res ""
+  if {[catch $P(check) msg]} { set res $msg }
+  do_test $P(testname).check [list set {} $res] ""
+}
+
+# A wrapper around [do_thread_test] which runs the specified test twice.
+# Once using processes, once using threads. This command takes the same
+# arguments as [do_thread_test], except specifying the -processes switch
+# is illegal.
+#
+proc do_thread_test2 {args} {
+  set name [lindex $args 0]
+  if {[lsearch $args -processes]>=0} { error "bad option: -processes"}
+  uplevel [lreplace $args 0 0 do_thread_test "$name-threads" -processes 0]
+  uplevel [lreplace $args 0 0 do_thread_test "$name-processes" -processes 1]
+}
+
+#--------------------------------------------------------------------------
+# Start 10 threads. Each thread performs both read and write 
+# transactions. Each read transaction consists of:
+#
+#   1) Reading the md5sum of all but the last table row,
+#   2) Running integrity check.
+#   3) Reading the value stored in the last table row,
+#   4) Check that the values read in steps 1 and 3 are the same, and that
+#      the md5sum of all but the last table row has not changed.
+#
+# Each write transaction consists of:
+#
+#   1) Modifying the contents of t1 (inserting, updating, deleting rows).
+#   2) Appending a new row to the table containing the md5sum() of all
+#      rows in the table.
+#
+# Each of the N threads runs N read transactions followed by a single write
+# transaction in a loop as fast as possible.
+#
+# There is also a single checkpointer thread. It runs the following loop:
+#
+#   1) Execute "PRAGMA wal_checkpoint"
+#   2) Sleep for 500 ms.
+#
+do_thread_test2 walthread-1 -seconds $seconds(walthread-1) -init {
+  execsql {
+    PRAGMA journal_mode = WAL;
+    CREATE TABLE t1(x PRIMARY KEY);
+    PRAGMA lock_status;
+    INSERT INTO t1 VALUES(randomblob(100));
+    INSERT INTO t1 VALUES(randomblob(100));
+    INSERT INTO t1 SELECT md5sum(x) FROM t1;
+  }
+} -thread main 10 {
+
+  proc read_transaction {} {
+    set results [db eval {
+      BEGIN;
+        PRAGMA integrity_check;
+        SELECT md5sum(x) FROM t1 WHERE rowid != (SELECT max(rowid) FROM t1);
+        SELECT x FROM t1 WHERE rowid = (SELECT max(rowid) FROM t1);
+        SELECT md5sum(x) FROM t1 WHERE rowid != (SELECT max(rowid) FROM t1);
+      COMMIT;
+    }]
+
+    if {[llength $results]!=4
+     || [lindex $results 0] != "ok"
+     || [lindex $results 1] != [lindex $results 2]
+     || [lindex $results 2] != [lindex $results 3]
+    } {
+      error "Failed read transaction: $results"
+    }
+  }
+
+  proc write_transaction {} {
+    db eval {
+      BEGIN;
+        INSERT INTO t1 VALUES(randomblob(101 + $::E(pid)));
+        INSERT INTO t1 VALUES(randomblob(101 + $::E(pid)));
+        INSERT INTO t1 SELECT md5sum(x) FROM t1;
+      COMMIT;
+    }
+  }
+
+  # Turn off auto-checkpoint. Otherwise, an auto-checkpoint run by a
+  # writer may cause the dedicated checkpoint thread to return an
+  # SQLITE_BUSY error.
+  #
+  db eval { PRAGMA wal_autocheckpoint = 0 }
+
+  set nRun 0
+  while {[tt_continue]} {
+    read_transaction
+    write_transaction 
+    incr nRun
+  }
+  set nRun
+
+} -thread ckpt 1 {
+  set nRun 0
+  while {[tt_continue]} {
+    db eval "PRAGMA wal_checkpoint"
+    usleep 500
+    incr nRun
+  }
+  set nRun
+}
+
+#--------------------------------------------------------------------------
+# This test has clients run the following procedure as fast as possible
+# in a loop:
+#
+#   1. Open a database handle.
+#   2. Execute a read-only transaction on the db.
+#   3. Do "PRAGMA journal_mode = XXX", where XXX is one of WAL or DELETE.
+#      Ignore any SQLITE_BUSY error.
+#   4. Execute a write transaction to insert a row into the db.
+#   5. Run "PRAGMA integrity_check"
+#
+# At present, there are 4 clients in total. 2 do "journal_mode = WAL", and
+# two do "journal_mode = DELETE".
+#
+# Each client returns a string of the form "W w, R r", where W is the 
+# number of write-transactions performed using a WAL journal, and D is
+# the number of write-transactions performed using a rollback journal.
+# For example, "192 w, 185 r".
+#
+if {[atomic_batch_write test.db]==0} {
+  do_thread_test2 walthread-2 -seconds $seconds(walthread-2) -init {
+    execsql { CREATE TABLE t1(x INTEGER PRIMARY KEY, y UNIQUE) }
+  } -thread RB 2 {
+
+    db close
+    set nRun 0
+    set nDel 0
+    while {[tt_continue]} {
+      sqlite3 db test.db
+      db busy busyhandler
+      db eval { SELECT * FROM sqlite_master }
+      catch { db eval { PRAGMA journal_mode = DELETE } }
+      db eval {
+        BEGIN;
+        INSERT INTO t1 VALUES(NULL, randomblob(100+$E(pid)));
+      }
+      incr nRun 1
+      incr nDel [file exists test.db-journal]
+      if {[file exists test.db-journal] + [file exists test.db-wal] != 1} {
+        error "File-system looks bad..."
+      }
+      db eval COMMIT
+  
+      integrity_check
+      db close
+    }
+    list $nRun $nDel
+    set {} "[expr $nRun-$nDel] w, $nDel r"
+  
+  } -thread WAL 2 {
+    db close
+    set nRun 0
+    set nDel 0
+    while {[tt_continue]} {
+      sqlite3 db test.db
+      db busy busyhandler
+      db eval { SELECT * FROM sqlite_master }
+      catch { db eval { PRAGMA journal_mode = WAL } }
+      db eval {
+        BEGIN;
+        INSERT INTO t1 VALUES(NULL, randomblob(110+$E(pid)));
+      }
+      incr nRun 1
+      incr nDel [file exists test.db-journal]
+      if {[file exists test.db-journal] + [file exists test.db-wal] != 1} {
+        error "File-system looks bad..."
+      }
+      db eval COMMIT
+  
+      integrity_check
+      db close
+    }
+    set {} "[expr $nRun-$nDel] w, $nDel r"
+  }
+}
+
+do_thread_test walthread-3 -seconds $seconds(walthread-3) -init {
+  execsql {
+    PRAGMA journal_mode = WAL;
+    CREATE TABLE t1(cnt PRIMARY KEY, sum1, sum2);
+    CREATE INDEX i1 ON t1(sum1);
+    CREATE INDEX i2 ON t1(sum2);
+    INSERT INTO t1 VALUES(0, 0, 0);
+  }
+} -thread t 10 {
+
+  set nextwrite $E(pid)
+
+  proc wal_hook {zDb nEntry} {
+    if {$nEntry>10} { 
+      set rc [catch { db eval {PRAGMA wal_checkpoint} } msg]
+      if {$rc && $msg != "database is locked"} { error $msg }
+    }
+    return 0
+  }
+  db wal_hook wal_hook
+
+  while {[tt_continue]} {
+    set max 0
+    while { $max != ($nextwrite-1) && [tt_continue] } {
+      set max [db eval { SELECT max(cnt) FROM t1 }]
+    }
+
+    if {[tt_continue]} {
+      set sum1 [db eval { SELECT sum(cnt) FROM t1 }]
+      set sum2 [db eval { SELECT sum(sum1) FROM t1 }]
+      db eval { INSERT INTO t1 VALUES($nextwrite, $sum1, $sum2) }
+      incr nextwrite $E(nthread)
+      integrity_check
+    }
+  }
+
+  set {} ok
+} -check {
+  puts "  Final db contains [db eval {SELECT count(*) FROM t1}] rows"
+  puts "  Final integrity-check says: [db eval {PRAGMA integrity_check}]"
+
+  # Check that the contents of the database are Ok.
+  set c 0
+  set s1 0
+  set s2 0
+  db eval { SELECT cnt, sum1, sum2 FROM t1 ORDER BY cnt } {
+    if {$c != $cnt || $s1 != $sum1 || $s2 != $sum2} {
+      error "database content is invalid"
+    }
+    incr s2 $s1
+    incr s1 $c
+    incr c 1
+  }
+}
+
+do_thread_test2 walthread-4 -seconds $seconds(walthread-4) -init {
+  execsql {
+    PRAGMA journal_mode = WAL;
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b UNIQUE);
+  }
+} -thread r 1 {
+  # This connection only ever reads the database. Therefore the 
+  # busy-handler is not required. Disable it to check that this is true.
+  #
+  # UPDATE: That is no longer entirely true - as we don't use a blocking
+  # lock to enter RECOVER state. Which means there is a small chance a
+  # reader can see an SQLITE_BUSY.
+  #
+  while {[tt_continue]} {
+    integrity_check
+  }
+  set {} ok
+} -thread w 1 {
+
+  proc wal_hook {zDb nEntry} {
+    if {$nEntry>15} {db eval {PRAGMA wal_checkpoint}}
+    return 0
+  }
+  db wal_hook wal_hook
+  set row 1
+  while {[tt_continue]} {
+    db eval { REPLACE INTO t1 VALUES($row, randomblob(300)) }
+    incr row
+    if {$row == 10} { set row 1 }
+  }
+
+  set {} ok
+}
+
+
+# This test case attempts to provoke a deadlock condition that existed in
+# the unix VFS at one point. The problem occurred only while recovering a 
+# very large wal file (one that requires a wal-index larger than the 
+# initial default allocation of 64KB).
+#
+do_thread_test walthread-5 -seconds $seconds(walthread-5) -init {
+
+  proc log_file_size {nFrame pgsz} {
+    expr {12 + ($pgsz+16)*$nFrame}
+  }
+
+  execsql {
+    PRAGMA page_size = 1024;
+    PRAGMA journal_mode = WAL;
+    CREATE TABLE t1(x);
+    BEGIN;
+      INSERT INTO t1 VALUES(randomblob(900));
+      INSERT INTO t1 SELECT randomblob(900) FROM t1;      /*     2 */
+      INSERT INTO t1 SELECT randomblob(900) FROM t1;      /*     4 */
+      INSERT INTO t1 SELECT randomblob(900) FROM t1;      /*     8 */
+      INSERT INTO t1 SELECT randomblob(900) FROM t1;      /*    16 */
+      INSERT INTO t1 SELECT randomblob(900) FROM t1;      /*    32 */
+      INSERT INTO t1 SELECT randomblob(900) FROM t1;      /*    64 */
+      INSERT INTO t1 SELECT randomblob(900) FROM t1;      /*   128 */
+      INSERT INTO t1 SELECT randomblob(900) FROM t1;      /*   256 */
+      INSERT INTO t1 SELECT randomblob(900) FROM t1;      /*   512 */
+      INSERT INTO t1 SELECT randomblob(900) FROM t1;      /*  1024 */
+      INSERT INTO t1 SELECT randomblob(900) FROM t1;      /*  2048 */
+      INSERT INTO t1 SELECT randomblob(900) FROM t1;      /*  4096 */
+      INSERT INTO t1 SELECT randomblob(900) FROM t1;      /*  8192 */
+      INSERT INTO t1 SELECT randomblob(900) FROM t1;      /* 16384 */
+      INSERT INTO t1 SELECT randomblob(900) FROM t1;      /* 32768 */
+      INSERT INTO t1 SELECT randomblob(900) FROM t1;      /* 65536 */
+    COMMIT;
+  }
+
+  forcecopy test.db-wal bak.db-wal
+  forcecopy test.db bak.db
+  db close
+
+  forcecopy bak.db-wal test.db-wal
+  forcecopy bak.db test.db
+
+  if {[file size test.db-wal] < [log_file_size [expr 64*1024] 1024]} {
+    error "Somehow failed to create a large log file"
+  }
+  puts "Database with large log file recovered. Now running clients..."
+} -thread T 5 {
+  db eval { SELECT count(*) FROM t1 }
+}
+unset -nocomplain seconds
+
+finish_test
diff --git a/test/walvfs.test b/test/walvfs.test
new file mode 100644
index 0000000000000000000000000000000000000000..d32cbd73f1b70bb672a640abe6c3fe0d2d64ae41
--- /dev/null
+++ b/test/walvfs.test
@@ -0,0 +1,437 @@
+# 2018 December 23
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the operation of the library in
+# "PRAGMA journal_mode=WAL" mode.
+#
+# TESTRUNNER: slow
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+source $testdir/malloc_common.tcl
+source $testdir/wal_common.tcl
+set testprefix walvfs
+
+ifcapable !wal {finish_test ; return }
+
+db close
+testvfs tvfs 
+tvfs script xSync
+tvfs filter xSync
+set ::sync_count 0
+proc xSync {method file args} {
+  if {[file tail $file]=="test.db-wal"} {
+    incr ::sync_count
+  }
+}
+
+
+#-------------------------------------------------------------------------
+# Test that if IOCAP_SEQUENTIAL is set, the wal-header is not synced to
+# disk immediately after it is written.
+#
+sqlite3 db test.db -vfs tvfs
+do_execsql_test 1.0 {
+  PRAGMA auto_vacuum = 0;
+  PRAGMA journal_mode = wal;
+  PRAGMA synchronous = normal;
+  CREATE TABLE t1(a, b, c);
+  INSERT INTO t1 VALUES(1, 2, 3);
+  INSERT INTO t1 VALUES(4, 5, 6);
+  INSERT INTO t1 VALUES(7, 8, 9);
+  PRAGMA wal_checkpoint;
+} {wal 0 5 5}
+
+set ::sync_count 0
+do_test 1.1 {
+  execsql { INSERT INTO t1 VALUES(10, 11, 12) }
+  set ::sync_count
+} 1
+
+db close
+tvfs devchar sequential
+sqlite3 db test.db -vfs tvfs
+do_execsql_test 1.2 {
+  PRAGMA synchronous = normal;
+  INSERT INTO t1 VALUES(13, 14, 15);
+  INSERT INTO t1 VALUES(16, 17, 18);
+  PRAGMA wal_checkpoint;
+} {0 4 4}
+
+set ::sync_count 0
+do_test 1.3 {
+  execsql { INSERT INTO t1 VALUES(10, 11, 12) }
+  set ::sync_count
+} 0
+
+#-------------------------------------------------------------------------
+# Test that "PRAGMA journal_size_limit" works in wal mode.
+#
+reset_db
+do_execsql_test 2.0 {
+  PRAGMA journal_size_limit = 10000;
+  CREATE TABLE t1(x);
+  PRAGMA journal_mode = wal;
+  WITH s(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM s LIMIT 20
+  )
+  INSERT INTO t1 SELECT randomblob(750) FROM s;
+} {10000 wal}
+do_test 2.1 {
+  expr [file size test.db-wal]>12000
+} {1}
+do_test 2.2 {
+  execsql {
+    PRAGMA wal_checkpoint;
+    INSERT INTO t1 VALUES(randomblob(750));
+  }
+  file size test.db-wal
+} {10000}
+do_test 2.3 {
+  execsql {
+    PRAGMA journal_size_limit = 8000;
+    PRAGMA wal_checkpoint;
+    INSERT INTO t1 VALUES(randomblob(750));
+  }
+  file size test.db-wal
+} {8000}
+
+#-------------------------------------------------------------------------
+# Test that a checkpoint may be interrupted using sqlite3_interrupt().
+# And that the error code is SQLITE_NOMEM, not SQLITE_INTERRUPT, if
+# an OOM error occurs just before the sqlite3_interrupt() call.
+#
+reset_db
+db close
+sqlite3 db test.db -vfs tvfs
+tvfs filter {}
+
+do_execsql_test 3.0 {
+  CREATE TABLE t1(x);
+  PRAGMA journal_mode = wal;
+  WITH s(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM s LIMIT 20
+  )
+  INSERT INTO t1 SELECT randomblob(750) FROM s;
+} {wal}
+
+tvfs filter xWrite
+tvfs script xWrite
+set ::cnt 2
+proc xWrite {method file args} {
+  if {[file tail $file]=="test.db"} {
+    incr ::cnt -1
+    if {$::cnt==0} {
+      sqlite3_interrupt db
+    }
+  }
+  return SQLITE_OK
+}
+
+do_catchsql_test 3.1 {
+  PRAGMA wal_checkpoint
+} {1 interrupted}
+
+set ::cnt 2
+proc xWrite {method file args} {
+  if {[file tail $file]=="test.db"} {
+    incr ::cnt -1
+    if {$::cnt==0} {
+      sqlite3_memdebug_fail 1 -repeat 0
+      # For this test to pass, the following statement must call malloc() at 
+      # least once. Even if the lookaside is enabled.
+      set ::xwrite_stmt_res [catchsql { SELECT hex(randomblob(4000)) }]
+      sqlite3_interrupt db
+    }
+  }
+  return SQLITE_OK
+}
+
+set ::xwrite_stmt_res ""
+do_catchsql_test 3.2 {
+  PRAGMA wal_checkpoint
+} {1 {out of memory}}
+do_test 3.2.2 {
+  set ::xwrite_stmt_res
+} {1 {out of memory}}
+unset ::xwrite_stmt_res
+
+#-------------------------------------------------------------------------
+#
+reset_db
+db close
+do_test 4.0 {
+  sqlite3 db test.db -vfs tvfs
+  execsql {
+    CREATE TABLE t1(x);
+    PRAGMA journal_mode = wal;
+    WITH s(i) AS (
+        SELECT 1 UNION ALL SELECT i+1 FROM s LIMIT 20
+    )
+    INSERT INTO t1 SELECT randomblob(750) FROM s;
+  } db
+} {wal}
+db close
+
+tvfs filter xShmMap
+tvfs script xShmMap
+proc xShmMap {method file args} { 
+  return SQLITE_READONLY 
+}
+sqlite3 db test.db -vfs tvfs
+do_catchsql_test 4.1 {
+  SELECT count(*) FROM t1
+} {1 {attempt to write a readonly database}}
+
+set ::cnt 5
+tvfs filter {xShmMap xShmLock}
+proc xShmMap {method file name args} { 
+  switch -- $method {
+    xShmMap {  return SQLITE_READONLY }
+    xShmLock {
+      if {$args == "{0 1 lock shared}"} {
+        incr ::cnt -1
+        if {$::cnt>0} { return SQLITE_BUSY }
+      }
+    }
+  }
+  return SQLITE_OK
+}
+do_catchsql_test 4.2 {
+  SELECT count(*) FROM t1
+} {1 {attempt to write a readonly database}}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+db close 
+sqlite3 db test.db -vfs tvfs
+tvfs filter {}
+do_execsql_test 5.0 {
+  PRAGMA auto_vacuum = 0;
+  PRAGMA page_size = 1024;
+  CREATE TABLE t1(x);
+  PRAGMA journal_mode = wal;
+  WITH s(i) AS (
+      SELECT 1 UNION ALL SELECT i+1 FROM s LIMIT 20
+  )
+  INSERT INTO t1 SELECT randomblob(750) FROM s;
+} {wal}
+
+do_execsql_test 5.1 {
+  SELECT count(*) FROM t1
+} {20}
+
+do_test 5.2 {
+  vfs_set_readmark db main 1 100
+  vfs_set_readmark db main 2 100
+  vfs_set_readmark db main 3 100
+  vfs_set_readmark db main 4 100
+} {100}
+
+do_execsql_test 5.3 {
+  SELECT count(*) FROM t1
+} {20}
+
+do_test 5.3 {
+  list [vfs_set_readmark db main 1] \
+       [vfs_set_readmark db main 2] \
+       [vfs_set_readmark db main 3] \
+       [vfs_set_readmark db main 4] 
+} {24 100 100 100}
+
+tvfs script xShmLock
+tvfs filter xShmLock
+set ::cnt 20
+proc xShmLock {args} {
+  incr ::cnt -1
+  if {$::cnt>0} { return SQLITE_BUSY }
+  return SQLITE_OK
+}
+
+do_test 5.4 {
+  vfs_set_readmark db main 1 100
+  execsql { SELECT count(*) FROM t1 }
+} {20}
+
+vfs_set_readmark db main 1 100
+vfs_set_readmark db main 2 100
+vfs_set_readmark db main 3 100
+vfs_set_readmark db main 4 100
+
+tvfs script xShmMapLock
+tvfs filter {xShmLock xShmMap}
+proc xShmMapLock {method args} {
+  if {$method=="xShmMap"} {
+    return "SQLITE_READONLY"
+  }
+  return SQLITE_BUSY
+}
+
+sqlite3 db2 test.db -vfs tvfs
+breakpoint
+do_test 5.5 {
+  list [catch { execsql { SELECT count(*) FROM t1 } db2 } msg] $msg
+} {1 {attempt to write a readonly database}}
+
+tvfs filter {}
+vfs_set_readmark db main 1 1
+
+do_test 5.6 {
+  list [catch { execsql { SELECT count(*) FROM t1 } db2 } msg] $msg
+} {0 20}
+db2 close
+db close
+
+#-------------------------------------------------------------------------
+# Cause an SQLITE_PROTOCOL while attempting to restart the wal file.
+#
+reset_db
+tvfs filter {}
+db close
+sqlite3 db test.db -vfs tvfs
+do_execsql_test 6.0 {
+  PRAGMA auto_vacuum = 0;
+  PRAGMA page_size = 1024;
+  CREATE TABLE t1(x);
+  PRAGMA journal_mode = wal;
+  WITH s(i) AS (
+      SELECT 1 UNION ALL SELECT i+1 FROM s LIMIT 20
+  )
+  INSERT INTO t1 SELECT randomblob(750) FROM s;
+} {wal}
+
+do_test 6.1 {
+  execsql { PRAGMA wal_checkpoint } 
+  set {} {}
+} {}
+
+tvfs filter xShmLock
+tvfs script xShmLock
+set ::flag 0
+proc xShmLock {method file handle spec} {
+  if {$::flag && [lrange $spec 2 end]=="lock shared"} {
+    return SQLITE_BUSY
+  }
+  if {$spec=="3 1 unlock shared"} {
+    set ::flag 1
+  }
+  return SQLITE_OK
+}
+
+puts "# WARNING: This next test takes around 12 seconds"
+do_catchsql_test 6.2 {
+  INSERT INTO t1 VALUES(1);
+} {1 {locking protocol}}
+
+#-------------------------------------------------------------------------
+# Check that a checkpoint fails if it cannot get the CHECKPOINTER lock
+#
+reset_db
+tvfs filter {}
+db close
+sqlite3 db test.db -vfs tvfs
+do_execsql_test 7.0 {
+  PRAGMA auto_vacuum = 0;
+  PRAGMA page_size = 1024;
+  CREATE TABLE t1(x);
+  PRAGMA journal_mode = wal;
+  WITH s(i) AS (
+      SELECT 1 UNION ALL SELECT i+1 FROM s LIMIT 20
+  )
+  INSERT INTO t1 SELECT randomblob(750) FROM s;
+} {wal}
+
+tvfs script xShmLock
+tvfs filter xShmLock
+proc xShmLock {method file handle spec} {
+  if {$spec=="1 1 lock exclusive"} {
+    return SQLITE_BUSY
+  }
+  return SQLITE_OK
+}
+
+do_execsql_test 7.1 {
+  PRAGMA wal_checkpoint
+} {1 -1 -1}
+
+#-------------------------------------------------------------------------
+# Check that the page cache is correctly flushed if a checkpointer using
+# a version 2 VFS makes a checkpoint with an out-of-date cache.
+#
+reset_db
+testvfs tvfs2 -iversion 2
+db close
+sqlite3 db test.db -vfs tvfs2
+do_execsql_test 8.0 {
+  PRAGMA auto_vacuum = 0;
+  PRAGMA page_size = 1024;
+  CREATE TABLE t1(x);
+  PRAGMA journal_mode = wal;
+  WITH s(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM s LIMIT 20 )
+  INSERT INTO t1 SELECT randomblob(75) FROM s;
+} {wal}
+
+do_execsql_test 8.1 { SELECT count(*) FROM t1 } {20}
+
+do_test 8.2 {
+  sqlite3 db2 test.db -vfs tvfs2
+  execsql {
+    INSERT INTO t1 VALUES(randomblob(75));
+  } db2
+  db2 close
+} {}
+
+do_execsql_test 8.3 { 
+  PRAGMA wal_checkpoint;
+  SELECT count(*) FROM t1 
+} {0 5 5 21}
+db close
+tvfs2 delete
+
+#-------------------------------------------------------------------------
+reset_db
+db close
+sqlite3 db test.db -vfs tvfs
+do_execsql_test 9.0 {
+  PRAGMA auto_vacuum = 0;
+  PRAGMA page_size = 1024;
+  CREATE TABLE t1(x);
+  PRAGMA journal_mode = wal;
+  WITH s(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM s LIMIT 20 )
+  INSERT INTO t1 SELECT randomblob(75) FROM s;
+} {wal}
+
+sqlite3 db2 test.db -vfs tvfs
+tvfs filter {xShmMap xShmLock}
+tvfs script xShmMap
+proc xShmMap {method file handle args} {
+  switch -- $method {
+    xShmMap {
+      return "SQLITE_READONLY_CANTINIT"
+    }
+    xShmLock {
+      if {$args=="{3 1 lock shared}"} {
+        return "SQLITE_IOERR"
+      }
+    }
+  }
+}
+
+do_test 9.1 {
+  catchsql { SELECT count(*) FROM t1 } db2
+} {1 {disk I/O error}}
+
+db close
+db2 close
+tvfs delete
+finish_test
diff --git a/test/where.test b/test/where.test
new file mode 100644
index 0000000000000000000000000000000000000000..0a8cfd572b77a235796bd381f9e907b76efdd1cb
--- /dev/null
+++ b/test/where.test
@@ -0,0 +1,1707 @@
+# 2001 September 15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the use of indices in WHERE clases.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Build some test data
+#
+do_test where-1.0 {
+  execsql {
+    CREATE TABLE t1(w int, x int, y int);
+    CREATE TABLE t2(p int, q int, r int, s int);
+  }
+  for {set i 1} {$i<=100} {incr i} {
+    set w $i
+    set x [expr {int(log($i)/log(2))}]
+    set y [expr {$i*$i + 2*$i + 1}]
+    execsql "INSERT INTO t1 VALUES($w,$x,$y)"
+  }
+
+  ifcapable subquery {
+    execsql {
+      INSERT INTO t2 SELECT 101-w, x, (SELECT max(y) FROM t1)+1-y, y FROM t1;
+    }
+  } else {
+    set maxy [execsql {select max(y) from t1}]
+    execsql "
+      INSERT INTO t2 SELECT 101-w, x, $maxy+1-y, y FROM t1;
+    "
+  }
+
+  execsql {
+    CREATE INDEX i1w ON t1("w");  -- Verify quoted identifier names
+    CREATE INDEX i1xy ON t1(`x`,'y' ASC); -- Old MySQL compatibility
+    CREATE INDEX i2p ON t2(p);
+    CREATE INDEX i2r ON t2(r);
+    CREATE INDEX i2qs ON t2(q, s);
+  }
+} {}
+
+# Do an SQL statement.  Append the search count to the end of the result.
+#
+proc count sql {
+  set ::sqlite_search_count 0
+  return [concat [execsql $sql] $::sqlite_search_count]
+}
+
+# Verify that queries use an index.  We are using the special variable
+# "sqlite_search_count" which tallys the number of executions of MoveTo
+# and Next operators in the VDBE.  By verifing that the search count is
+# small we can be assured that indices are being used properly.
+#
+do_test where-1.1.1 {
+  count {SELECT x, y, w FROM t1 WHERE w=10}
+} {3 121 10 3}
+do_test where-1.1.1b {
+  count {SELECT x, y, w FROM t1 WHERE w IS 10}
+} {3 121 10 3}
+do_eqp_test where-1.1.2 {
+  SELECT x, y, w FROM t1 WHERE w=10
+} {*SEARCH t1 USING INDEX i1w (w=?)*}
+do_eqp_test where-1.1.2b {
+  SELECT x, y, w FROM t1 WHERE w IS 10
+} {*SEARCH t1 USING INDEX i1w (w=?)*}
+do_test where-1.1.3 {
+  db status step
+} {0}
+do_test where-1.1.4 {
+  db eval {SELECT x, y, w FROM t1 WHERE +w=10}
+} {3 121 10}
+do_test where-1.1.5 {
+  db status step
+} {99}
+do_eqp_test where-1.1.6 {
+  SELECT x, y, w FROM t1 WHERE +w=10
+} {*SCAN t1*}
+do_test where-1.1.7 {
+  count {SELECT x, y, w AS abc FROM t1 WHERE abc=10}
+} {3 121 10 3}
+do_eqp_test where-1.1.8 {
+  SELECT x, y, w AS abc FROM t1 WHERE abc=10
+} {*SEARCH t1 USING INDEX i1w (w=?)*}
+do_test where-1.1.9 {
+  db status step
+} {0}
+do_test where-1.2.1 {
+  count {SELECT x, y, w FROM t1 WHERE w=11}
+} {3 144 11 3}
+do_test where-1.2.2 {
+  count {SELECT x, y, w AS abc FROM t1 WHERE abc=11}
+} {3 144 11 3}
+do_test where-1.3.1 {
+  count {SELECT x, y, w AS abc FROM t1 WHERE 11=w}
+} {3 144 11 3}
+do_test where-1.3.2 {
+  count {SELECT x, y, w AS abc FROM t1 WHERE 11=abc}
+} {3 144 11 3}
+do_test where-1.3.3 {
+  count {SELECT x, y, w AS abc FROM t1 WHERE 11 IS abc}
+} {3 144 11 3}
+do_test where-1.4.1 {
+  count {SELECT w, x, y FROM t1 WHERE 11=w AND x>2}
+} {11 3 144 3}
+do_test where-1.4.1b {
+  count {SELECT w, x, y FROM t1 WHERE 11 IS w AND x>2}
+} {11 3 144 3}
+do_eqp_test where-1.4.2 {
+  SELECT w, x, y FROM t1 WHERE 11=w AND x>2
+} {*SEARCH t1 USING INDEX i1w (w=?)*}
+do_eqp_test where-1.4.2b {
+  SELECT w, x, y FROM t1 WHERE 11 IS w AND x>2
+} {*SEARCH t1 USING INDEX i1w (w=?)*}
+do_test where-1.4.3 {
+  count {SELECT w AS a, x AS b, y FROM t1 WHERE 11=a AND b>2}
+} {11 3 144 3}
+do_eqp_test where-1.4.4 {
+  SELECT w AS a, x AS b, y FROM t1 WHERE 11=a AND b>2
+} {*SEARCH t1 USING INDEX i1w (w=?)*}
+do_test where-1.5 {
+  count {SELECT x, y FROM t1 WHERE y<200 AND w=11 AND x>2}
+} {3 144 3}
+do_eqp_test where-1.5.2 {
+  SELECT x, y FROM t1 WHERE y<200 AND w=11 AND x>2
+} {*SEARCH t1 USING INDEX i1w (w=?)*}
+do_test where-1.6 {
+  count {SELECT x, y FROM t1 WHERE y<200 AND x>2 AND w=11}
+} {3 144 3}
+do_test where-1.7 {
+  count {SELECT x, y FROM t1 WHERE w=11 AND y<200 AND x>2}
+} {3 144 3}
+do_test where-1.8 {
+  count {SELECT x, y FROM t1 WHERE w>10 AND y=144 AND x=3}
+} {3 144 3}
+do_eqp_test where-1.8.2 {
+  SELECT x, y FROM t1 WHERE w>10 AND y=144 AND x=3
+} {*SEARCH t1 USING INDEX i1xy (x=? AND y=?)*}
+do_eqp_test where-1.8.3 {
+  SELECT x, y FROM t1 WHERE y=144 AND x=3
+} {*SEARCH t1 USING COVERING INDEX i1xy (x=? AND y=?)*}
+do_test where-1.9 {
+  count {SELECT x, y FROM t1 WHERE y=144 AND w>10 AND x=3}
+} {3 144 3}
+do_test where-1.10 {
+  count {SELECT x, y FROM t1 WHERE x=3 AND w>=10 AND y=121}
+} {3 121 3}
+do_test where-1.11 {
+  count {SELECT x, y FROM t1 WHERE x=3 AND y=100 AND w<10}
+} {3 100 3}
+do_test where-1.11b {
+  count {SELECT x, y FROM t1 WHERE x IS 3 AND y IS 100 AND w<10}
+} {3 100 3}
+
+# New for SQLite version 2.1: Verify that that inequality constraints
+# are used correctly.
+#
+do_test where-1.12 {
+  count {SELECT w FROM t1 WHERE x=3 AND y<100}
+} {8 3}
+do_test where-1.12b {
+  count {SELECT w FROM t1 WHERE x IS 3 AND y<100}
+} {8 3}
+do_test where-1.13 {
+  count {SELECT w FROM t1 WHERE x=3 AND 100>y}
+} {8 3}
+do_test where-1.14 {
+  count {SELECT w FROM t1 WHERE 3=x AND y<100}
+} {8 3}
+do_test where-1.14b {
+  count {SELECT w FROM t1 WHERE 3 IS x AND y<100}
+} {8 3}
+do_test where-1.15 {
+  count {SELECT w FROM t1 WHERE 3=x AND 100>y}
+} {8 3}
+do_test where-1.16 {
+  count {SELECT w FROM t1 WHERE x=3 AND y<=100}
+} {8 9 5}
+do_test where-1.17 {
+  count {SELECT w FROM t1 WHERE x=3 AND 100>=y}
+} {8 9 5}
+do_test where-1.18 {
+  count {SELECT w FROM t1 WHERE x=3 AND y>225}
+} {15 3}
+do_test where-1.18b {
+  count {SELECT w FROM t1 WHERE x IS 3 AND y>225}
+} {15 3}
+do_test where-1.19 {
+  count {SELECT w FROM t1 WHERE x=3 AND 225<y}
+} {15 3}
+do_test where-1.20 {
+  count {SELECT w FROM t1 WHERE x=3 AND y>=225}
+} {14 15 5}
+do_test where-1.21 {
+  count {SELECT w FROM t1 WHERE x=3 AND 225<=y}
+} {14 15 5}
+do_test where-1.22 {
+  count {SELECT w FROM t1 WHERE x=3 AND y>121 AND y<196}
+} {11 12 5}
+do_test where-1.22b {
+  count {SELECT w FROM t1 WHERE x IS 3 AND y>121 AND y<196}
+} {11 12 5}
+do_test where-1.23 {
+  count {SELECT w FROM t1 WHERE x=3 AND y>=121 AND y<=196}
+} {10 11 12 13 9}
+do_test where-1.24 {
+  count {SELECT w FROM t1 WHERE x=3 AND 121<y AND 196>y}
+} {11 12 5}
+do_test where-1.25 {
+  count {SELECT w FROM t1 WHERE x=3 AND 121<=y AND 196>=y}
+} {10 11 12 13 9}
+
+# Need to work on optimizing the BETWEEN operator.  
+#
+# do_test where-1.26 {
+#   count {SELECT w FROM t1 WHERE x=3 AND y BETWEEN 121 AND 196}
+# } {10 11 12 13 9}
+
+do_test where-1.27 {
+  count {SELECT w FROM t1 WHERE x=3 AND y+1==122}
+} {10 10}
+
+do_test where-1.28 {
+  count {SELECT w FROM t1 WHERE x+1=4 AND y+1==122}
+} {10 99}
+do_test where-1.29 {
+  count {SELECT w FROM t1 WHERE y==121}
+} {10 99}
+
+
+do_test where-1.30 {
+  count {SELECT w FROM t1 WHERE w>97}
+} {98 99 100 3}
+do_test where-1.31 {
+  count {SELECT w FROM t1 WHERE w>=97}
+} {97 98 99 100 4}
+do_test where-1.33 {
+  count {SELECT w FROM t1 WHERE w==97}
+} {97 2}
+do_test where-1.33.1  {
+  count {SELECT w FROM t1 WHERE w<=97 AND w==97}
+} {97 2}
+do_test where-1.33.2  {
+  count {SELECT w FROM t1 WHERE w<98 AND w==97}
+} {97 2}
+do_test where-1.33.3  {
+  count {SELECT w FROM t1 WHERE w>=97 AND w==97}
+} {97 2}
+do_test where-1.33.4  {
+  count {SELECT w FROM t1 WHERE w>96 AND w==97}
+} {97 2}
+do_test where-1.33.5  {
+  count {SELECT w FROM t1 WHERE w==97 AND w==97}
+} {97 2}
+do_test where-1.34 {
+  count {SELECT w FROM t1 WHERE w+1==98}
+} {97 99}
+do_test where-1.35 {
+  count {SELECT w FROM t1 WHERE w<3}
+} {1 2 3}
+do_test where-1.36 {
+  count {SELECT w FROM t1 WHERE w<=3}
+} {1 2 3 4}
+do_test where-1.37 {
+  count {SELECT w FROM t1 WHERE w+1<=4 ORDER BY w}
+} {1 2 3 99}
+
+do_test where-1.38 {
+  count {SELECT (w) FROM t1 WHERE (w)>(97)}
+} {98 99 100 3}
+do_test where-1.39 {
+  count {SELECT (w) FROM t1 WHERE (w)>=(97)}
+} {97 98 99 100 4}
+do_test where-1.40 {
+  count {SELECT (w) FROM t1 WHERE (w)==(97)}
+} {97 2}
+do_test where-1.41 {
+  count {SELECT (w) FROM t1 WHERE ((w)+(1))==(98)}
+} {97 99}
+
+
+# Do the same kind of thing except use a join as the data source.
+#
+do_test where-2.1 {
+  count {
+    SELECT w, p FROM t2, t1
+    WHERE x=q AND y=s AND r=8977
+  }
+} {34 67 6}
+do_test where-2.2 {
+  count {
+    SELECT w, p FROM t2, t1
+    WHERE x=q AND s=y AND r=8977
+  }
+} {34 67 6}
+do_test where-2.3 {
+  count {
+    SELECT w, p FROM t2, t1
+    WHERE x=q AND s=y AND r=8977 AND w>10
+  }
+} {34 67 6}
+do_test where-2.4 {
+  count {
+    SELECT w, p FROM t2, t1
+    WHERE p<80 AND x=q AND s=y AND r=8977 AND w>10
+  }
+} {34 67 6}
+do_test where-2.5 {
+  count {
+    SELECT w, p FROM t2, t1
+    WHERE p<80 AND x=q AND 8977=r AND s=y AND w>10
+  }
+} {34 67 6}
+do_test where-2.6 {
+  count {
+    SELECT w, p FROM t2, t1
+    WHERE x=q AND p=77 AND s=y AND w>5
+  }
+} {24 77 6}
+do_test where-2.7 {
+  count {
+    SELECT w, p FROM t1, t2
+    WHERE x=q AND p>77 AND s=y AND w=5
+  }
+} {5 96 6}
+
+# Lets do a 3-way join.
+#
+do_test where-3.1 {
+  count {
+    SELECT A.w, B.p, C.w FROM t1 as A, t2 as B, t1 as C
+    WHERE C.w=101-B.p AND B.r=10202-A.y AND A.w=11
+  }
+} {11 90 11 8}
+do_test where-3.2 {
+  count {
+    SELECT A.w, B.p, C.w FROM t1 as A, t2 as B, t1 as C
+    WHERE C.w=101-B.p AND B.r=10202-A.y AND A.w=12
+  }
+} {12 89 12 8}
+do_test where-3.3 {
+  count {
+    SELECT A.w, B.p, C.w FROM t1 as A, t2 as B, t1 as C
+    WHERE A.w=15 AND B.p=C.w AND B.r=10202-A.y
+  }
+} {15 86 86 8}
+
+# Test to see that the special case of a constant WHERE clause is
+# handled.
+#
+do_test where-4.1 {
+  count {
+    SELECT * FROM t1 WHERE 0
+  }
+} {0}
+do_test where-4.2 {
+  count {
+    SELECT * FROM t1 WHERE 1 LIMIT 1
+  }
+} {1 0 4 0}
+do_test where-4.3 {
+  execsql {
+    SELECT 99 WHERE 0
+  }
+} {}
+do_test where-4.4 {
+  execsql {
+    SELECT 99 WHERE 1
+  }
+} {99}
+do_test where-4.5 {
+  execsql {
+    SELECT 99 WHERE 0.1
+  }
+} {99}
+do_test where-4.6 {
+  execsql {
+    SELECT 99 WHERE 0.0
+  }
+} {}
+do_test where-4.7 {
+  execsql {
+    SELECT count(*) FROM t1 WHERE t1.w
+  }
+} {100}
+
+# Verify that IN operators in a WHERE clause are handled correctly.
+# Omit these tests if the build is not capable of sub-queries.
+#
+ifcapable subquery {
+  do_test where-5.1 {
+    count {
+      SELECT * FROM t1 WHERE rowid IN (1,2,3,1234) order by 1;
+    }
+  } {1 0 4 2 1 9 3 1 16 4}
+  do_test where-5.2 {
+    count {
+      SELECT * FROM t1 WHERE rowid+0 IN (1,2,3,1234) order by 1;
+    }
+  } {1 0 4 2 1 9 3 1 16 102}
+  do_test where-5.3a {
+    count {
+      SELECT * FROM t1 WHERE w IN (-1,1,2,3) order by 1;
+    }
+  } {1 0 4 2 1 9 3 1 16 12}
+  do_test where-5.3b {
+    count {
+      SELECT * FROM t1 WHERE w IN (3,-1,1,2) order by 1;
+    }
+  } {1 0 4 2 1 9 3 1 16 12}
+  do_test where-5.3c {
+    count {
+      SELECT * FROM t1 WHERE w IN (3,2,-1,1,2) order by 1;
+    }
+  } {1 0 4 2 1 9 3 1 16 12}
+  do_test where-5.3d {
+    count {
+      SELECT * FROM t1 WHERE w IN (-1,1,2,3) order by 1 DESC;
+    }
+  } {3 1 16 2 1 9 1 0 4 11}
+  do_test where-5.4 {
+    count {
+      SELECT * FROM t1 WHERE w+0 IN (-1,1,2,3) order by 1;
+    }
+  } {1 0 4 2 1 9 3 1 16 102}
+  do_test where-5.5 {
+    count {
+      SELECT * FROM t1 WHERE rowid IN 
+         (select rowid from t1 where rowid IN (-1,2,4))
+      ORDER BY 1;
+    }
+  } {2 1 9 4 2 25 3}
+  do_test where-5.6 {
+    count {
+      SELECT * FROM t1 WHERE rowid+0 IN 
+         (select rowid from t1 where rowid IN (-1,2,4))
+      ORDER BY 1;
+    }
+  } {2 1 9 4 2 25 103}
+  do_test where-5.7 {
+    count {
+      SELECT * FROM t1 WHERE w IN 
+         (select rowid from t1 where rowid IN (-1,2,4))
+      ORDER BY 1;
+    }
+  } {2 1 9 4 2 25 9}
+  do_test where-5.8 {
+    count {
+      SELECT * FROM t1 WHERE w+0 IN 
+         (select rowid from t1 where rowid IN (-1,2,4))
+      ORDER BY 1;
+    }
+  } {2 1 9 4 2 25 103}
+  do_test where-5.9 {
+    count {
+      SELECT * FROM t1 WHERE x IN (1,7) ORDER BY 1;
+    }
+  } {2 1 9 3 1 16 6}
+  do_test where-5.10 {
+    count {
+      SELECT * FROM t1 WHERE x+0 IN (1,7) ORDER BY 1;
+    }
+  } {2 1 9 3 1 16 199}
+  do_test where-5.11 {
+    count {
+      SELECT * FROM t1 WHERE y IN (6400,8100) ORDER BY 1;
+    }
+  } {79 6 6400 89 6 8100 199}
+  do_test where-5.12 {
+    count {
+      SELECT * FROM t1 WHERE x=6 AND y IN (6400,8100) ORDER BY 1;
+    }
+  } {79 6 6400 89 6 8100 7}
+  do_test where-5.13 {
+    count {
+      SELECT * FROM t1 WHERE x IN (1,7) AND y NOT IN (6400,8100) ORDER BY 1;
+    }
+  } {2 1 9 3 1 16 6}
+  do_test where-5.14 {
+    count {
+      SELECT * FROM t1 WHERE x IN (1,7) AND y IN (9,10) ORDER BY 1;
+    }
+  } {2 1 9 5}
+  do_test where-5.15 {
+    count {
+      SELECT * FROM t1 WHERE x IN (1,7) AND y IN (9,16) ORDER BY 1;
+    }
+  } {2 1 9 3 1 16 9}
+  do_test where-5.100 {
+    db eval {
+      SELECT w, x, y FROM t1 WHERE x IN (1,5) AND y IN (9,8,3025,1000,3969)
+       ORDER BY x, y
+    }
+  } {2 1 9 54 5 3025 62 5 3969}
+  do_test where-5.101 {
+    db eval {
+      SELECT w, x, y FROM t1 WHERE x IN (1,5) AND y IN (9,8,3025,1000,3969)
+       ORDER BY x DESC, y DESC
+    }
+  } {62 5 3969 54 5 3025 2 1 9}
+  do_test where-5.102 {
+    db eval {
+      SELECT w, x, y FROM t1 WHERE x IN (1,5) AND y IN (9,8,3025,1000,3969)
+       ORDER BY x DESC, y
+    }
+  } {54 5 3025 62 5 3969 2 1 9}
+  do_test where-5.103 {
+    db eval {
+      SELECT w, x, y FROM t1 WHERE x IN (1,5) AND y IN (9,8,3025,1000,3969)
+       ORDER BY x, y DESC
+    }
+  } {2 1 9 62 5 3969 54 5 3025}
+}
+
+# This procedure executes the SQL.  Then it checks to see if the OP_Sort
+# opcode was executed.  If an OP_Sort did occur, then "sort" is appended
+# to the result.  If no OP_Sort happened, then "nosort" is appended.
+#
+# This procedure is used to check to make sure sorting is or is not
+# occurring as expected.
+#
+proc cksort {sql} {
+  set data [execsql $sql]
+  if {[db status sort]} {set x sort} {set x nosort}
+  lappend data $x
+  return $data
+}
+# Check out the logic that attempts to implement the ORDER BY clause
+# using an index rather than by sorting.
+#
+do_test where-6.1 {
+  execsql {
+    CREATE TABLE t3(a,b,c);
+    CREATE INDEX t3a ON t3(a);
+    CREATE INDEX t3bc ON t3(b,c);
+    CREATE INDEX t3acb ON t3(a,c,b);
+    INSERT INTO t3 SELECT w, 101-w, y FROM t1;
+    SELECT count(*), sum(a), sum(b), sum(c) FROM t3;
+    ANALYZE;
+  }
+} {100 5050 5050 348550}
+do_test where-6.2 {
+  cksort {
+    SELECT * FROM t3 ORDER BY a LIMIT 3
+  }
+} {1 100 4 2 99 9 3 98 16 nosort}
+do_test where-6.3 {
+  cksort {
+    SELECT * FROM t3 ORDER BY a+1 LIMIT 3
+  }
+} {1 100 4 2 99 9 3 98 16 sort}
+do_test where-6.4 {
+  cksort {
+    SELECT * FROM t3 WHERE a<10 ORDER BY a LIMIT 3
+  }
+} {1 100 4 2 99 9 3 98 16 nosort}
+do_test where-6.5 {
+  cksort {
+    SELECT * FROM t3 WHERE a>0 AND a<10 ORDER BY a LIMIT 3
+  }
+} {1 100 4 2 99 9 3 98 16 nosort}
+do_test where-6.6 {
+  cksort {
+    SELECT * FROM t3 WHERE a>0 ORDER BY a LIMIT 3
+  }
+} {1 100 4 2 99 9 3 98 16 nosort}
+do_test where-6.7.1 {
+  cksort {
+    SELECT * FROM t3 WHERE b>0 ORDER BY a LIMIT 10
+  }
+} {/1 100 4 2 99 9 3 98 16 .* nosort/}
+do_test where-6.7.2 {
+  cksort {
+    SELECT * FROM t3 WHERE b>0 ORDER BY a LIMIT 1
+  }
+} {1 100 4 nosort}
+ifcapable subquery {
+  do_test where-6.8a {
+    cksort {
+      SELECT * FROM t3 WHERE a IN (3,5,7,1,9,4,2) ORDER BY a LIMIT 3
+    }
+  } {1 100 4 2 99 9 3 98 16 nosort}
+  do_test where-6.8b {
+    cksort {
+      SELECT * FROM t3 WHERE a IN (3,5,7,1,9,4,2) ORDER BY a DESC LIMIT 3
+    }
+  } {9 92 100 7 94 64 5 96 36 nosort}
+}
+do_test where-6.9.1 {
+  cksort {
+    SELECT * FROM t3 WHERE a=1 AND c>0 ORDER BY a LIMIT 3
+  }
+} {1 100 4 nosort}
+do_test where-6.9.1.1 {
+  cksort {
+    SELECT * FROM t3 WHERE a>=1 AND a=1 AND c>0 ORDER BY a LIMIT 3
+  }
+} {1 100 4 nosort}
+do_test where-6.9.1.2 {
+  cksort {
+    SELECT * FROM t3 WHERE a<2 AND a=1 AND c>0 ORDER BY a LIMIT 3
+  }
+} {1 100 4 nosort}
+do_test where-6.9.2 {
+  cksort {
+    SELECT * FROM t3 WHERE a=1 AND c>0 ORDER BY a,c LIMIT 3
+  }
+} {1 100 4 nosort}
+do_test where-6.9.3 {
+  cksort {
+    SELECT * FROM t3 WHERE a=1 AND c>0 ORDER BY c LIMIT 3
+  }
+} {1 100 4 nosort}
+do_test where-6.9.4 {
+  cksort {
+    SELECT * FROM t3 WHERE a=1 AND c>0 ORDER BY a DESC LIMIT 3
+  }
+} {1 100 4 nosort}
+do_test where-6.9.5 {
+  cksort {
+    SELECT * FROM t3 WHERE a=1 AND c>0 ORDER BY a DESC, c DESC LIMIT 3
+  }
+} {1 100 4 nosort}
+do_test where-6.9.6 {
+  cksort {
+    SELECT * FROM t3 WHERE a=1 AND c>0 ORDER BY c DESC LIMIT 3
+  }
+} {1 100 4 nosort}
+do_test where-6.9.7 {
+  cksort {
+    SELECT * FROM t3 WHERE a=1 AND c>0 ORDER BY c,a LIMIT 3
+  }
+} {1 100 4 nosort}
+do_test where-6.9.8 {
+  cksort {
+    SELECT * FROM t3 WHERE a=1 AND c>0 ORDER BY a DESC, c ASC LIMIT 3
+  }
+} {1 100 4 nosort}
+do_test where-6.9.9 {
+  cksort {
+    SELECT * FROM t3 WHERE a=1 AND c>0 ORDER BY a ASC, c DESC LIMIT 3
+  }
+} {1 100 4 nosort}
+do_test where-6.10 {
+  cksort {
+    SELECT * FROM t3 WHERE a=1 AND c>0 ORDER BY a LIMIT 3
+  }
+} {1 100 4 nosort}
+do_test where-6.11 {
+  cksort {
+    SELECT * FROM t3 WHERE a=1 AND c>0 ORDER BY a,c LIMIT 3
+  }
+} {1 100 4 nosort}
+do_test where-6.12 {
+  cksort {
+    SELECT * FROM t3 WHERE a=1 AND c>0 ORDER BY a,c,b LIMIT 3
+  }
+} {1 100 4 nosort}
+do_test where-6.13 {
+  cksort {
+    SELECT * FROM t3 WHERE a>0 ORDER BY a DESC LIMIT 3
+  }
+} {100 1 10201 99 2 10000 98 3 9801 nosort}
+do_test where-6.13.1 {
+  cksort {
+    SELECT * FROM t3 WHERE a>0 ORDER BY -a LIMIT 3
+  }
+} {100 1 10201 99 2 10000 98 3 9801 sort}
+do_test where-6.14 {
+  cksort {
+    SELECT * FROM t3 ORDER BY b LIMIT 3
+  }
+} {100 1 10201 99 2 10000 98 3 9801 nosort}
+do_test where-6.15 {
+  cksort {
+    SELECT t3.a, t1.x FROM t3, t1 WHERE t3.a=t1.w ORDER BY t3.a LIMIT 3
+  }
+} {1 0 2 1 3 1 nosort}
+do_test where-6.16 {
+  cksort {
+    SELECT t3.a, t1.x FROM t3, t1 WHERE t3.a=t1.w ORDER BY t1.x, t3.a LIMIT 3
+  }
+} {1 0 2 1 3 1 sort}
+do_test where-6.19 {
+  cksort {
+    SELECT y FROM t1 ORDER BY w LIMIT 3;
+  }
+} {4 9 16 nosort}
+do_test where-6.20 {
+  cksort {
+    SELECT y FROM t1 ORDER BY rowid LIMIT 3;
+  }
+} {4 9 16 nosort}
+do_test where-6.21 {
+  cksort {
+    SELECT y FROM t1 ORDER BY rowid, y LIMIT 3;
+  }
+} {4 9 16 nosort}
+do_test where-6.22 {
+  cksort {
+    SELECT y FROM t1 ORDER BY rowid, y DESC LIMIT 3;
+  }
+} {4 9 16 nosort}
+do_test where-6.23 {
+  cksort {
+    SELECT y FROM t1 WHERE y>4 ORDER BY rowid, w, x LIMIT 3;
+  }
+} {9 16 25 nosort}
+do_test where-6.24 {
+  cksort {
+    SELECT y FROM t1 WHERE y>=9 ORDER BY rowid, x DESC, w LIMIT 3;
+  }
+} {9 16 25 nosort}
+do_test where-6.25 {
+  cksort {
+    SELECT y FROM t1 WHERE y>4 AND y<25 ORDER BY rowid;
+  }
+} {9 16 nosort}
+do_test where-6.26 {
+  cksort {
+    SELECT y FROM t1 WHERE y>=4 AND y<=25 ORDER BY oid;
+  }
+} {4 9 16 25 nosort}
+do_test where-6.27 {
+  cksort {
+    SELECT y FROM t1 WHERE y<=25 ORDER BY _rowid_, w+y;
+  }
+} {4 9 16 25 nosort}
+
+
+# Tests for reverse-order sorting.
+#
+do_test where-7.1 {
+  cksort {
+    SELECT w FROM t1 WHERE x=3 ORDER BY y;
+  }
+} {8 9 10 11 12 13 14 15 nosort}
+do_test where-7.2 {
+  cksort {
+    SELECT w FROM t1 WHERE x=3 ORDER BY y DESC;
+  }
+} {15 14 13 12 11 10 9 8 nosort}
+do_test where-7.3 {
+  cksort {
+    SELECT w FROM t1 WHERE x=3 AND y>100 ORDER BY y LIMIT 3;
+  }
+} {10 11 12 nosort}
+do_test where-7.4 {
+  cksort {
+    SELECT w FROM t1 WHERE x=3 AND y>100 ORDER BY y DESC LIMIT 3;
+  }
+} {15 14 13 nosort}
+do_test where-7.5 {
+  cksort {
+    SELECT w FROM t1 WHERE x=3 AND y>121 ORDER BY y DESC;
+  }
+} {15 14 13 12 11 nosort}
+do_test where-7.6 {
+  cksort {
+    SELECT w FROM t1 WHERE x=3 AND y>=121 ORDER BY y DESC;
+  }
+} {15 14 13 12 11 10 nosort}
+do_test where-7.7 {
+  cksort {
+    SELECT w FROM t1 WHERE x=3 AND y>=121 AND y<196 ORDER BY y DESC;
+  }
+} {12 11 10 nosort}
+do_test where-7.8 {
+  cksort {
+    SELECT w FROM t1 WHERE x=3 AND y>=121 AND y<=196 ORDER BY y DESC;
+  }
+} {13 12 11 10 nosort}
+do_test where-7.9 {
+  cksort {
+    SELECT w FROM t1 WHERE x=3 AND y>121 AND y<=196 ORDER BY y DESC;
+  }
+} {13 12 11 nosort}
+do_test where-7.10 {
+  cksort {
+    SELECT w FROM t1 WHERE x=3 AND y>100 AND y<196 ORDER BY y DESC;
+  }
+} {12 11 10 nosort}
+do_test where-7.11 {
+  cksort {
+    SELECT w FROM t1 WHERE x=3 AND y>=121 AND y<196 ORDER BY y;
+  }
+} {10 11 12 nosort}
+do_test where-7.12 {
+  cksort {
+    SELECT w FROM t1 WHERE x=3 AND y>=121 AND y<=196 ORDER BY y;
+  }
+} {10 11 12 13 nosort}
+do_test where-7.13 {
+  cksort {
+    SELECT w FROM t1 WHERE x=3 AND y>121 AND y<=196 ORDER BY y;
+  }
+} {11 12 13 nosort}
+do_test where-7.14 {
+  cksort {
+    SELECT w FROM t1 WHERE x=3 AND y>100 AND y<196 ORDER BY y;
+  }
+} {10 11 12 nosort}
+do_test where-7.15 {
+  cksort {
+    SELECT w FROM t1 WHERE x=3 AND y<81 ORDER BY y;
+  }
+} {nosort}
+do_test where-7.16 {
+  cksort {
+    SELECT w FROM t1 WHERE x=3 AND y<=81 ORDER BY y;
+  }
+} {8 nosort}
+do_test where-7.17 {
+  cksort {
+    SELECT w FROM t1 WHERE x=3 AND y>256 ORDER BY y;
+  }
+} {nosort}
+do_test where-7.18 {
+  cksort {
+    SELECT w FROM t1 WHERE x=3 AND y>=256 ORDER BY y;
+  }
+} {15 nosort}
+do_test where-7.19 {
+  cksort {
+    SELECT w FROM t1 WHERE x=3 AND y<81 ORDER BY y DESC;
+  }
+} {nosort}
+do_test where-7.20 {
+  cksort {
+    SELECT w FROM t1 WHERE x=3 AND y<=81 ORDER BY y DESC;
+  }
+} {8 nosort}
+do_test where-7.21 {
+  cksort {
+    SELECT w FROM t1 WHERE x=3 AND y>256 ORDER BY y DESC;
+  }
+} {nosort}
+do_test where-7.22 {
+  cksort {
+    SELECT w FROM t1 WHERE x=3 AND y>=256 ORDER BY y DESC;
+  }
+} {15 nosort}
+do_test where-7.23 {
+  cksort {
+    SELECT w FROM t1 WHERE x=0 AND y<4 ORDER BY y;
+  }
+} {nosort}
+do_test where-7.24 {
+  cksort {
+    SELECT w FROM t1 WHERE x=0 AND y<=4 ORDER BY y;
+  }
+} {1 nosort}
+do_test where-7.25 {
+  cksort {
+    SELECT w FROM t1 WHERE x=6 AND y>10201 ORDER BY y;
+  }
+} {nosort}
+do_test where-7.26 {
+  cksort {
+    SELECT w FROM t1 WHERE x=6 AND y>=10201 ORDER BY y;
+  }
+} {100 nosort}
+do_test where-7.27 {
+  cksort {
+    SELECT w FROM t1 WHERE x=0 AND y<4 ORDER BY y DESC;
+  }
+} {nosort}
+do_test where-7.28 {
+  cksort {
+    SELECT w FROM t1 WHERE x=0 AND y<=4 ORDER BY y DESC;
+  }
+} {1 nosort}
+do_test where-7.29 {
+  cksort {
+    SELECT w FROM t1 WHERE x=6 AND y>10201 ORDER BY y DESC;
+  }
+} {nosort}
+do_test where-7.30 {
+  cksort {
+    SELECT w FROM t1 WHERE x=6 AND y>=10201 ORDER BY y DESC;
+  }
+} {100 nosort}
+do_test where-7.31 {
+  cksort {
+    SELECT y FROM t1 ORDER BY rowid DESC LIMIT 3
+  }
+} {10201 10000 9801 nosort}
+do_test where-7.32 {
+  cksort {
+    SELECT y FROM t1 WHERE y<25 ORDER BY rowid DESC
+  }
+} {16 9 4 nosort}
+do_test where-7.33 {
+  cksort {
+    SELECT y FROM t1 WHERE y<=25 ORDER BY rowid DESC
+  }
+} {25 16 9 4 nosort}
+do_test where-7.34 {
+  cksort {
+    SELECT y FROM t1 WHERE y<25 AND y>4 ORDER BY rowid DESC, y DESC
+  }
+} {16 9 nosort}
+do_test where-7.35 {
+  cksort {
+    SELECT y FROM t1 WHERE y<25 AND y>=4 ORDER BY rowid DESC
+  }
+} {16 9 4 nosort}
+
+do_test where-8.1 {
+  execsql {
+    CREATE TABLE t4 AS SELECT * FROM t1;
+    CREATE INDEX i4xy ON t4(x,y);
+  }
+  cksort {
+    SELECT w FROM t4 WHERE x=4 and y<1000 ORDER BY y DESC limit 3;
+  }
+} {30 29 28 nosort}
+do_test where-8.2 {
+  execsql {
+    DELETE FROM t4;
+  }
+  cksort {
+    SELECT w FROM t4 WHERE x=4 and y<1000 ORDER BY y DESC limit 3;
+  }
+} {nosort}
+
+# Make sure searches with an index work with an empty table.
+#
+do_test where-9.1 {
+  execsql {
+    CREATE TABLE t5(x PRIMARY KEY);
+    SELECT * FROM t5 WHERE x<10;
+  }
+} {}
+do_test where-9.2 {
+  execsql {
+    SELECT * FROM t5 WHERE x<10 ORDER BY x DESC;
+  }
+} {}
+do_test where-9.3 {
+  execsql {
+    SELECT * FROM t5 WHERE x=10;
+  }
+} {}
+
+do_test where-10.1 {
+  execsql {
+    SELECT 1 WHERE abs(random())<0
+  }
+} {}
+do_test where-10.2 {
+  proc tclvar_func {vname} {return [set ::$vname]}
+  db function tclvar tclvar_func
+  set ::v1 0
+  execsql {
+    SELECT count(*) FROM t1 WHERE tclvar('v1');
+  }
+} {0}
+do_test where-10.3 {
+  set ::v1 1
+  execsql {
+    SELECT count(*) FROM t1 WHERE tclvar('v1');
+  }
+} {100}
+do_test where-10.4 {
+  set ::v1 1
+  proc tclvar_func {vname} {
+    upvar #0 $vname v
+    set v [expr {!$v}]
+    return $v
+  }
+  execsql {
+    SELECT count(*) FROM t1 WHERE tclvar('v1');
+  }
+} {50}
+
+# Ticket #1376.  The query below was causing a segfault.
+# The problem was the age-old error of calling realloc() on an
+# array while there are still pointers to individual elements of
+# that array.
+#
+do_test where-11.1 {
+  execsql {
+   CREATE TABLE t99(Dte INT, X INT);
+   DELETE FROM t99 WHERE (Dte = 2451337) OR (Dte = 2451339) OR
+     (Dte BETWEEN 2451345 AND 2451347) OR (Dte = 2451351) OR 
+     (Dte BETWEEN 2451355 AND 2451356) OR (Dte = 2451358) OR
+     (Dte = 2451362) OR (Dte = 2451365) OR (Dte = 2451367) OR
+     (Dte BETWEEN 2451372 AND 2451376) OR (Dte BETWEEN 2451382 AND 2451384) OR
+     (Dte = 2451387) OR (Dte BETWEEN 2451389 AND 2451391) OR 
+     (Dte BETWEEN 2451393 AND 2451395) OR (Dte = 2451400) OR 
+     (Dte = 2451402) OR (Dte = 2451404) OR (Dte BETWEEN 2451416 AND 2451418) OR 
+     (Dte = 2451422) OR (Dte = 2451426) OR (Dte BETWEEN 2451445 AND 2451446) OR
+     (Dte = 2451456) OR (Dte = 2451458) OR (Dte BETWEEN 2451465 AND 2451467) OR
+     (Dte BETWEEN 2451469 AND 2451471) OR (Dte = 2451474) OR
+     (Dte BETWEEN 2451477 AND 2451501) OR (Dte BETWEEN 2451503 AND 2451509) OR
+     (Dte BETWEEN 2451511 AND 2451514) OR (Dte BETWEEN 2451518 AND 2451521) OR
+     (Dte BETWEEN 2451523 AND 2451531) OR (Dte BETWEEN 2451533 AND 2451537) OR
+     (Dte BETWEEN 2451539 AND 2451544) OR (Dte BETWEEN 2451546 AND 2451551) OR
+     (Dte BETWEEN 2451553 AND 2451555) OR (Dte = 2451557) OR
+     (Dte BETWEEN 2451559 AND 2451561) OR (Dte = 2451563) OR
+     (Dte BETWEEN 2451565 AND 2451566) OR (Dte BETWEEN 2451569 AND 2451571) OR 
+     (Dte = 2451573) OR (Dte = 2451575) OR (Dte = 2451577) OR (Dte = 2451581) OR
+     (Dte BETWEEN 2451583 AND 2451586) OR (Dte BETWEEN 2451588 AND 2451592) OR 
+     (Dte BETWEEN 2451596 AND 2451598) OR (Dte = 2451600) OR
+     (Dte BETWEEN 2451602 AND 2451603) OR (Dte = 2451606) OR (Dte = 2451611);
+  }
+} {}
+
+# Ticket #2116:  Make sure sorting by index works well with nn INTEGER PRIMARY
+# KEY.
+#
+do_test where-12.1 {
+  execsql {
+    CREATE TABLE t6(a INTEGER PRIMARY KEY, b TEXT);
+    INSERT INTO t6 VALUES(1,'one');
+    INSERT INTO t6 VALUES(4,'four');
+    CREATE INDEX t6i1 ON t6(b);
+  }
+  cksort {
+    SELECT * FROM t6 ORDER BY b;
+  }
+} {4 four 1 one nosort}
+do_test where-12.2 {
+  cksort {
+    SELECT * FROM t6 ORDER BY b, a;
+  }
+} {4 four 1 one nosort}
+do_test where-12.3 {
+  cksort {
+    SELECT * FROM t6 ORDER BY a;
+  }
+} {1 one 4 four nosort}
+do_test where-12.4 {
+  cksort {
+    SELECT * FROM t6 ORDER BY a, b;
+  }
+} {1 one 4 four nosort}
+do_test where-12.5 {
+  cksort {
+    SELECT * FROM t6 ORDER BY b DESC;
+  }
+} {1 one 4 four nosort}
+do_test where-12.6 {
+  cksort {
+    SELECT * FROM t6 ORDER BY b DESC, a DESC;
+  }
+} {1 one 4 four nosort}
+do_test where-12.7 {
+  cksort {
+    SELECT * FROM t6 ORDER BY b DESC, a ASC;
+  }
+} {1 one 4 four sort}
+do_test where-12.8 {
+  cksort {
+    SELECT * FROM t6 ORDER BY b ASC, a DESC;
+  }
+} {4 four 1 one sort}
+do_test where-12.9 {
+  cksort {
+    SELECT * FROM t6 ORDER BY a DESC;
+  }
+} {4 four 1 one nosort}
+do_test where-12.10 {
+  cksort {
+    SELECT * FROM t6 ORDER BY a DESC, b DESC;
+  }
+} {4 four 1 one nosort}
+do_test where-12.11 {
+  cksort {
+    SELECT * FROM t6 ORDER BY a DESC, b ASC;
+  }
+} {4 four 1 one nosort}
+do_test where-12.12 {
+  cksort {
+    SELECT * FROM t6 ORDER BY a ASC, b DESC;
+  }
+} {1 one 4 four nosort}
+do_test where-13.1 {
+  execsql {
+    CREATE TABLE t7(a INTEGER PRIMARY KEY, b TEXT);
+    INSERT INTO t7 VALUES(1,'one');
+    INSERT INTO t7 VALUES(4,'four');
+    CREATE INDEX t7i1 ON t7(b);
+  }
+  cksort {
+    SELECT * FROM t7 ORDER BY b;
+  }
+} {4 four 1 one nosort}
+do_test where-13.2 {
+  cksort {
+    SELECT * FROM t7 ORDER BY b, a;
+  }
+} {4 four 1 one nosort}
+do_test where-13.3 {
+  cksort {
+    SELECT * FROM t7 ORDER BY a;
+  }
+} {1 one 4 four nosort}
+do_test where-13.4 {
+  cksort {
+    SELECT * FROM t7 ORDER BY a, b;
+  }
+} {1 one 4 four nosort}
+do_test where-13.5 {
+  cksort {
+    SELECT * FROM t7 ORDER BY b DESC;
+  }
+} {1 one 4 four nosort}
+do_test where-13.6 {
+  cksort {
+    SELECT * FROM t7 ORDER BY b DESC, a DESC;
+  }
+} {1 one 4 four nosort}
+do_test where-13.7 {
+  cksort {
+    SELECT * FROM t7 ORDER BY b DESC, a ASC;
+  }
+} {1 one 4 four sort}
+do_test where-13.8 {
+  cksort {
+    SELECT * FROM t7 ORDER BY b ASC, a DESC;
+  }
+} {4 four 1 one sort}
+do_test where-13.9 {
+  cksort {
+    SELECT * FROM t7 ORDER BY a DESC;
+  }
+} {4 four 1 one nosort}
+do_test where-13.10 {
+  cksort {
+    SELECT * FROM t7 ORDER BY a DESC, b DESC;
+  }
+} {4 four 1 one nosort}
+do_test where-13.11 {
+  cksort {
+    SELECT * FROM t7 ORDER BY a DESC, b ASC;
+  }
+} {4 four 1 one nosort}
+do_test where-13.12 {
+  cksort {
+    SELECT * FROM t7 ORDER BY a ASC, b DESC;
+  }
+} {1 one 4 four nosort}
+
+# Ticket #2211.
+#
+# When optimizing out ORDER BY clauses, make sure that trailing terms
+# of the ORDER BY clause do not reference other tables in a join.
+#
+if {[permutation] != "no_optimization"} {
+do_test where-14.1 {
+  execsql {
+    CREATE TABLE t8(a INTEGER PRIMARY KEY, b TEXT UNIQUE, c CHAR(100));
+    INSERT INTO t8(a,b) VALUES(1,'one');
+    INSERT INTO t8(a,b) VALUES(4,'four');
+  }
+  cksort {
+    SELECT x.a || '/' || y.a FROM t8 x, t8 y ORDER BY x.a, y.b
+  } 
+} {1/4 1/1 4/4 4/1 nosort}
+do_test where-14.2 {
+  cksort {
+    SELECT x.a || '/' || y.a FROM t8 x, t8 y ORDER BY x.a, y.b DESC
+  } 
+} {1/1 1/4 4/1 4/4 nosort}
+do_test where-14.3 {
+  cksort {
+    SELECT x.a || '/' || y.a FROM t8 x, t8 y ORDER BY x.a, x.b
+  } 
+} {1/4 1/1 4/4 4/1 nosort}
+do_test where-14.4 {
+  cksort {
+    SELECT x.a || '/' || y.a FROM t8 x, t8 y ORDER BY x.a, x.b DESC
+  } 
+} {1/4 1/1 4/4 4/1 nosort}
+do_test where-14.5 {
+  # This test case changed from "nosort" to "sort". See ticket 2a5629202f.
+  cksort {
+    SELECT x.a || '/' || y.a FROM t8 x, t8 y ORDER BY x.b, x.a||x.b
+  } 
+} {/4/[14] 4/[14] 1/[14] 1/[14] sort/}
+do_test where-14.6 {
+  # This test case changed from "nosort" to "sort". See ticket 2a5629202f.
+  cksort {
+    SELECT x.a || '/' || y.a FROM t8 x, t8 y ORDER BY x.b, x.a||x.b DESC
+  } 
+} {/4/[14] 4/[14] 1/[14] 1/[14] sort/}
+do_test where-14.7 {
+  cksort {
+    SELECT x.a || '/' || y.a FROM t8 x, t8 y ORDER BY x.b, y.a||y.b
+  } 
+} {4/1 4/4 1/1 1/4 sort}
+do_test where-14.7.1 {
+  cksort {
+    SELECT x.a || '/' || y.a FROM t8 x, t8 y ORDER BY x.b, x.a, y.a||y.b
+  } 
+} {4/1 4/4 1/1 1/4 sort}
+do_test where-14.7.2 {
+  cksort {
+    SELECT x.a || '/' || y.a FROM t8 x, t8 y ORDER BY x.b, x.a, x.a||x.b
+  } 
+} {4/4 4/1 1/4 1/1 nosort}
+do_test where-14.8 {
+  cksort {
+    SELECT x.a || '/' || y.a FROM t8 x, t8 y ORDER BY x.b, y.a||y.b DESC
+  } 
+} {4/4 4/1 1/4 1/1 sort}
+do_test where-14.9 {
+  cksort {
+    SELECT x.a || '/' || y.a FROM t8 x, t8 y ORDER BY x.b, x.a||y.b
+  } 
+} {4/4 4/1 1/4 1/1 sort}
+do_test where-14.10 {
+  cksort {
+    SELECT x.a || '/' || y.a FROM t8 x, t8 y ORDER BY x.b, x.a||y.b DESC
+  } 
+} {4/1 4/4 1/1 1/4 sort}
+do_test where-14.11 {
+  cksort {
+    SELECT x.a || '/' || y.a FROM t8 x, t8 y ORDER BY x.b, y.a||x.b
+  } 
+} {4/1 4/4 1/1 1/4 sort}
+do_test where-14.12 {
+  cksort {
+    SELECT x.a || '/' || y.a FROM t8 x, t8 y ORDER BY x.b, y.a||x.b DESC
+  } 
+} {4/4 4/1 1/4 1/1 sort}
+} ;# {permutation != "no_optimization"}
+
+# Ticket #2445.
+#
+# There was a crash that could occur when a where clause contains an
+# alias for an expression in the result set, and that expression retrieves
+# a column of the second or subsequent table in a join.
+#
+do_test where-15.1 {
+  execsql {
+    CREATE TEMP TABLE t1 (a, b, c, d, e);
+    CREATE TEMP TABLE t2 (f);
+    SELECT t1.e AS alias FROM t2, t1 WHERE alias = 1 ;
+  }
+} {}
+
+# Ticket #3408.
+# 
+# The branch of code in where.c that generated rowid lookups was
+# incorrectly deallocating a constant register, meaning that if the 
+# vdbe code ran more than once, the second time around the constant
+# value may have been clobbered by some other value.
+# 
+do_test where-16.1 {
+  execsql {
+    CREATE TABLE a1(id INTEGER PRIMARY KEY, v);
+    CREATE TABLE a2(id INTEGER PRIMARY KEY, v);
+    INSERT INTO a1 VALUES(1, 'one');
+    INSERT INTO a1 VALUES(2, 'two');
+    INSERT INTO a2 VALUES(1, 'one');
+    INSERT INTO a2 VALUES(2, 'two');
+  }
+} {}
+do_test where-16.2 {
+  execsql {
+    SELECT * FROM a2 CROSS JOIN a1 WHERE a1.id=1 AND a1.v='one';
+  }
+} {1 one 1 one 2 two 1 one}
+
+# The actual problem reported in #3408.
+do_test where-16.3 {
+  execsql {
+    CREATE TEMP TABLE foo(idx INTEGER);
+    INSERT INTO foo VALUES(1);
+    INSERT INTO foo VALUES(1);
+    INSERT INTO foo VALUES(1);
+    INSERT INTO foo VALUES(2);
+    INSERT INTO foo VALUES(2);
+    CREATE TEMP TABLE bar(stuff INTEGER);
+    INSERT INTO bar VALUES(100);
+    INSERT INTO bar VALUES(200);
+    INSERT INTO bar VALUES(300);
+  }
+} {}
+do_test where-16.4 {
+  execsql {
+    SELECT bar.RowID id FROM foo, bar WHERE foo.idx = bar.RowID AND id = 2;
+  }
+} {2 2}
+
+integrity_check {where-99.0}
+
+#---------------------------------------------------------------------
+# These tests test that a bug surrounding the use of ForceInt has been
+# fixed in where.c.
+#
+do_test where-17.1 {
+  execsql {
+    CREATE TABLE tbooking (
+      id INTEGER PRIMARY KEY,
+      eventtype INTEGER NOT NULL
+    );
+    INSERT INTO tbooking VALUES(42, 3);
+    INSERT INTO tbooking VALUES(43, 4);
+  }
+} {}
+do_test where-17.2 {
+  execsql {
+    SELECT a.id
+    FROM tbooking AS a
+    WHERE a.eventtype=3;
+  }
+} {42}
+do_test where-17.3 {
+  execsql {
+    SELECT a.id, (SELECT b.id FROM tbooking AS b WHERE b.id>a.id)
+    FROM tbooking AS a
+    WHERE a.eventtype=3;
+  }
+} {42 43}
+do_test where-17.4 {
+  execsql {
+    SELECT a.id, (SELECT b.id FROM tbooking AS b WHERE b.id>a.id)
+    FROM (SELECT 1.5 AS id) AS a
+  }
+} {1.5 42}
+do_test where-17.5 {
+  execsql {
+    CREATE TABLE tother(a, b);
+    INSERT INTO tother VALUES(1, 3.7);
+    SELECT id, a FROM tbooking, tother WHERE id>a;
+  }
+} {42 1 43 1}
+
+# Ticket [be84e357c035d068135f20bcfe82761bbf95006b]  2013-09-03
+# Segfault during query involving LEFT JOIN column in the ORDER BY clause.
+#
+do_execsql_test where-18.1 {
+  CREATE TABLE t181(a);
+  CREATE TABLE t182(b,c);
+  INSERT INTO t181 VALUES(1);
+  SELECT DISTINCT a FROM t181 LEFT JOIN t182 ON a=b ORDER BY c IS NULL;
+} {1}
+do_execsql_test where-18.1rj {
+  SELECT DISTINCT a FROM t182 RIGHT JOIN t181 ON a=b ORDER BY c IS NULL;
+} {1}
+do_execsql_test where-18.2 {
+  SELECT DISTINCT a FROM t181 LEFT JOIN t182 ON a=b ORDER BY +c;
+} {1}
+do_execsql_test where-18.3 {
+  SELECT DISTINCT a FROM t181 LEFT JOIN t182 ON a=b ORDER BY c;
+} {1}
+do_execsql_test where-18.3rj {
+  SELECT DISTINCT a FROM t182 RIGHT JOIN t181 ON a=b ORDER BY c;
+} {1}
+do_execsql_test where-18.4 {
+  INSERT INTO t181 VALUES(1),(1),(1),(1);
+  SELECT DISTINCT a FROM t181 LEFT JOIN t182 ON a=b ORDER BY +c;
+} {1}
+do_execsql_test where-18.4rj {
+  SELECT DISTINCT a FROM t182 RIGHT JOIN t181 ON a=b ORDER BY +c;
+} {1}
+do_execsql_test where-18.5 {
+  INSERT INTO t181 VALUES(2);
+  SELECT DISTINCT a FROM t181 LEFT JOIN t182 ON a=b ORDER BY c IS NULL, +a;
+} {1 2}
+do_execsql_test where-18.6 {
+  INSERT INTO t181 VALUES(2);
+  SELECT DISTINCT a FROM t181 LEFT JOIN t182 ON a=b ORDER BY +a, +c IS NULL;
+} {1 2}
+
+# Make sure the OR optimization works on a JOIN
+#
+do_execsql_test where-19.0 {
+  CREATE TABLE t191(a INT UNIQUE NOT NULL, b INT UNIQUE NOT NULL,c,d);
+  CREATE INDEX t191a ON t1(a);
+  CREATE INDEX t191b ON t1(b);
+  CREATE TABLE t192(x INTEGER PRIMARY KEY,y INT, z INT);
+
+  EXPLAIN QUERY PLAN
+  SELECT t191.rowid FROM t192, t191 WHERE (a=y OR b=y) AND x=?1;
+} {/.* sqlite_autoindex_t191_1 .* sqlite_autoindex_t191_2 .*/}
+
+# 2018-04-24 ticket [https://www.sqlite.org/src/info/4ba5abf65c5b0f9a]
+# Index on expressions leads to an incorrect answer for a LEFT JOIN
+#
+do_execsql_test where-20.0 {
+  CREATE TABLE t201(x);
+  CREATE TABLE t202(y, z);
+  INSERT INTO t201 VALUES('key');
+  INSERT INTO t202 VALUES('key', -1);
+  CREATE INDEX t202i ON t202(y, ifnull(z, 0));
+  SELECT count(*) FROM t201 LEFT JOIN t202 ON (x=y) WHERE ifnull(z, 0) >=0;
+} {0}
+
+do_execsql_test where-21.0 {
+  CREATE TABLE t12(a, b, c);
+  CREATE TABLE t13(x);
+  CREATE INDEX t12ab ON t12(b, a);
+  CREATE INDEX t12ac ON t12(c, a);
+
+  INSERT INTO t12 VALUES(4, 0, 1);
+  INSERT INTO t12 VALUES(4, 1, 0);
+  INSERT INTO t12 VALUES(5, 0, 1);
+  INSERT INTO t12 VALUES(5, 1, 0);
+
+  INSERT INTO t13 VALUES(1), (2), (3), (4);
+}
+do_execsql_test where-21.1 {
+  SELECT * FROM t12 WHERE 
+  a = (SELECT * FROM (SELECT count(*) FROM t13 LIMIT 5) ORDER BY 1 LIMIT 10) 
+  AND (b=1 OR c=1);
+} {
+  4 1 0
+  4 0 1
+}
+
+# 2018-11-05: ticket [https://www.sqlite.org/src/tktview/65eb38f6e46de8c75e188a]
+# Incorrect result in LEFT JOIN when STAT4 is enabled.
+#
+sqlite3 db :memory:
+do_execsql_test where-22.1 {
+  CREATE TABLE t1(a INT);
+  CREATE INDEX t1a ON t1(a);
+  INSERT INTO t1(a) VALUES(NULL),(NULL),(42),(NULL),(NULL);
+  CREATE TABLE t2(dummy INT);
+  SELECT count(*) FROM t1 LEFT JOIN t2 ON a IS NOT NULL;
+} {5}
+
+# 20190-02-22:  A bug introduced by checkin
+# https://www.sqlite.org/src/info/fa792714ae62fa98.
+#
+do_execsql_test where-23.0 {
+  DROP TABLE IF EXISTS t1;
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY);
+  INSERT INTO t1(a) VALUES(1),(2),(3);
+  CREATE TABLE t2(x INTEGER PRIMARY KEY, y INT);
+  INSERT INTO t2(y) VALUES(2),(3);
+  SELECT * FROM t1, t2 WHERE a=y AND y=3;
+} {3 2 3}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test where-24.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+  INSERT INTO t1 VALUES(1, 'one');
+  INSERT INTO t1 VALUES(2, 'two');
+  INSERT INTO t1 VALUES(3, 'three');
+  INSERT INTO t1 VALUES(4, 'four');
+}
+
+foreach {tn sql res} {
+  1 "SELECT b FROM t1"                   {one two three four}
+  2 "SELECT b FROM t1 WHERE a<4"         {one two three}
+  3 "SELECT b FROM t1 WHERE a>1"         {two three four}
+  4 "SELECT b FROM t1 WHERE a>1 AND a<4" {two three}
+
+  5 "SELECT b FROM t1 WHERE a>? AND a<4" {}
+  6 "SELECT b FROM t1 WHERE a>1 AND a<?" {}
+  7 "SELECT b FROM t1 WHERE a>? AND a<?" {}
+
+  7 "SELECT b FROM t1 WHERE a>=? AND a<=4" {}
+  8 "SELECT b FROM t1 WHERE a>=1 AND a<=?" {}
+  9 "SELECT b FROM t1 WHERE a>=? AND a<=?" {}
+} {
+  set rev [list]
+  foreach r $res { set rev [concat $r $rev] }
+
+  do_execsql_test where-24.$tn.1 "$sql"                     $res
+  do_execsql_test where-24.$tn.2 "$sql ORDER BY rowid"      $res
+  do_execsql_test where-24.$tn.3 "$sql ORDER BY rowid DESC" $rev
+
+  do_execsql_test where-24-$tn.4 "
+    BEGIN;
+      DELETE FROM t1;
+      $sql;
+      $sql ORDER BY rowid;
+      $sql ORDER BY rowid DESC;
+    ROLLBACK;
+  "
+}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test where-25.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+  CREATE UNIQUE INDEX i1 ON t1(c);
+  INSERT INTO t1 VALUES(1, 'one', 'i');
+  INSERT INTO t1 VALUES(2, 'two', 'ii');
+
+  CREATE TABLE t2(a INTEGER PRIMARY KEY, b, c);
+  CREATE UNIQUE INDEX i2 ON t2(c);
+  INSERT INTO t2 VALUES(1, 'one', 'i');
+  INSERT INTO t2 VALUES(2, 'two', 'ii');
+  INSERT INTO t2 VALUES(3, 'three', 'iii');
+
+  PRAGMA writable_schema = 1;
+  UPDATE sqlite_schema SET rootpage = (
+    SELECT rootpage FROM sqlite_schema WHERE name = 'i2'
+  ) WHERE name = 'i1';
+}
+db close
+sqlite3 db test.db
+do_catchsql_test where-25.1 {
+  DELETE FROM t1 WHERE c='iii'
+} {1 {database disk image is malformed}}
+do_catchsql_test where-25.2 {
+  INSERT INTO t1 VALUES(4, 'four', 'iii') 
+    ON CONFLICT(c) DO UPDATE SET b=NULL
+} {1 {database disk image is malformed}}
+
+reset_db
+do_execsql_test where-25.3 {
+  CREATE TABLE t1(a PRIMARY KEY, b, c) WITHOUT ROWID;
+  CREATE UNIQUE INDEX i1 ON t1(c);
+  INSERT INTO t1 VALUES(1, 'one', 'i');
+  INSERT INTO t1 VALUES(2, 'two', 'ii');
+
+  CREATE TABLE t2(a INTEGER PRIMARY KEY, b, c);
+  CREATE UNIQUE INDEX i2 ON t2(c);
+  INSERT INTO t2 VALUES(1, 'one', 'i');
+  INSERT INTO t2 VALUES(2, 'two', 'ii');
+  INSERT INTO t2 VALUES(3, 'three', 'iii');
+
+  PRAGMA writable_schema = 1;
+  UPDATE sqlite_schema SET rootpage = (
+    SELECT rootpage FROM sqlite_schema WHERE name = 'i2'
+  ) WHERE name = 'i1';
+}
+db close
+sqlite3 db test.db
+do_catchsql_test where-25.4 {
+  SELECT * FROM t1 WHERE c='iii'
+} {0 {}}
+do_catchsql_test where-25.5 {
+  INSERT INTO t1 VALUES(4, 'four', 'iii') 
+    ON CONFLICT(c) DO UPDATE SET b=NULL
+} {1 {corrupt database}}
+
+# 2019-08-21 Ticket https://www.sqlite.org/src/info/d9f584e936c7a8d0
+#
+db close
+sqlite3 db :memory:
+do_execsql_test where-26.1 {
+  CREATE TABLE t0(c0 INTEGER PRIMARY KEY, c1 TEXT);
+  INSERT INTO t0(c0, c1) VALUES (1, 'a');
+  CREATE TABLE t1(c0 INT PRIMARY KEY, c1 TEXT);
+  INSERT INTO t1(c0, c1) VALUES (1, 'a');
+  SELECT * FROM t0 WHERE '-1' BETWEEN 0 AND t0.c0;
+} {1 a}
+do_execsql_test where-26.2 {
+  SELECT * FROM t1 WHERE '-1' BETWEEN 0 AND t1.c0;
+} {1 a}
+do_execsql_test where-26.3 {
+  SELECT * FROM t0 WHERE '-1'>=0 AND '-1'<=t0.c0;
+} {1 a}
+do_execsql_test where-26.4 {
+  SELECT * FROM t1 WHERE '-1'>=0 AND '-1'<=t1.c0;
+} {1 a}
+do_execsql_test where-26.5 {
+  SELECT '-1' BETWEEN 0 AND t0.c0 FROM t0;
+} {1}
+do_execsql_test where-26.6 {
+  SELECT '-1' BETWEEN 0 AND t1.c0 FROM t1;
+} {1}
+do_execsql_test where-26.7 {
+  SELECT '-1'>=0 AND '-1'<=t0.c0 FROM t0;
+} {1}
+do_execsql_test where-26.8 {
+  SELECT '-1'>=0 AND '-1'<=t1.c0 FROM t1;
+} {1}
+
+# 2021-07-19 https://sqlite.org/forum/forumpost/2bdb86a068
+# Lose of precision when doing comparisons between integer and
+# floating point values that are near 9223372036854775807 in the
+# OP_SeekGE opcode (and similar).
+#
+# Valgrind documentation acknowledges that under valgrind, FP calculations
+# may not be as accurate as on x86/amd64 hardware. This seems to be causing
+# these tests to fail.
+#
+#   https://valgrind.org/docs/manual/manual-core.html#manual-core.limits
+#
+if {[permutation]!="valgrind"} {
+  reset_db
+  do_execsql_test where-27.1 {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY);
+    INSERT INTO t1(a) VALUES(9223372036854775807);
+    SELECT 1 FROM t1 WHERE a>=(9223372036854775807+1);
+  } {}
+  do_execsql_test where-27.2 {
+    SELECT a>=9223372036854775807+1 FROM t1;
+  } {0}
+}
+
+# 2022-05-10 dbsqlfuzz 4c5e3e89bc251d28378be88233f531b84ec66901
+# 
+reset_db
+do_execsql_test where-28.1 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b INT);
+  CREATE INDEX t1b ON t1(b,b,b,b,b,b,b,b,b,b,b,b,b);
+  INSERT INTO t1(a,b) VALUES(1,1),(15,2),(19,5);
+  UPDATE t1 SET b=999 WHERE a IN (SELECT 15) AND b IN (1,2);
+  SELECT * FROM t1;
+} {
+ 1  1
+ 15 999
+ 19 5
+}
+
+# 2022-12-07 Yong Heng [https://sqlite.org/forum/forumpost/dfe8084751]
+#
+ifcapable vtab {
+  do_execsql_test where-29.1 {
+    SELECT DISTINCT 'xyz' FROM pragma_cache_size
+      WHERE rowid OR abs(0)
+      ORDER BY
+      1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+      1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+      1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+      1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+      1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+      1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+      1, 1, 1, 1;
+  } {xyz}
+}
+
+# 2023-01-30
+# Tests case for the query planner performance issue reported by
+# https://sqlite.org/forum/forumpost/1d571c0296
+#
+# The fix was to adjust the cost of computing an automatic index for
+# ephemeral tables, to help ensure that they are generated if they are
+# needed.  The test case below only looks at the query plan.  But 12x
+# improved performance has been verified by populating the "raw" table
+# with 100K rows of random data and running actual speed tests.
+#
+do_test where-30.1 {
+  unset -nocomplain res
+  set res {}
+  db eval {CREATE TABLE raw(country,date,total,delta, UNIQUE(country,date));}
+  db eval {
+    EXPLAIN QUERY PLAN
+    WITH
+      -- Find the country and min/max date
+      init(country, date, fin) AS (SELECT country, min(date), max(date)
+         FROM raw WHERE total > 0 GROUP BY country),
+    
+      -- Generate the date stream for each country
+      src(country, date) AS (SELECT raw.country, raw.date
+          FROM raw JOIN init i on raw.country = i.country AND raw.date > i.date
+          ORDER BY raw.country, raw.date),
+    
+      -- Generate the x & y for each entry in the country/date stream
+      vals(country, date, x, y) AS (SELECT src.country, src.date,
+                julianday(raw.date) - julianday(src.date), log(delta+1)
+          FROM src JOIN raw on raw.country = src.country
+                        AND raw.date > date(src.date,'-7 days')
+                        AND raw.date <= src.date AND delta >= 0),
+    
+      -- Accumulate the data we need
+      sums(country, date, x2, x, n, xy, y) AS (SELECT country, date,
+              sum(x*x*1.0), sum(x*1.0), sum(1.0), sum(x*y*1.0), sum(y*1.0)
+         FROM vals GROUP BY 1, 2),
+    
+      -- use these to calculate to divisor for the inverse matrix
+      mult(country, date, m) AS (SELECT country, date, 1.0/(x2 * n - x * x)
+         FROM sums),
+    
+      -- Build the inverse matrix
+      inv(country, date, a,b,c,d) AS (SELECT mult.country, mult.date, n * m,
+                -x * m, -x * m, x2 * m
+          FROM mult JOIN sums on sums.country=mult.country
+                         AND mult.date=sums.date),
+    
+      -- Calculate the coefficients for the least squares fit
+      fit(country, date, a, b) AS (SELECT inv.country, inv.date,
+               a * xy + b * y, c * xy + d * y
+          FROM inv
+          JOIN mult on mult.country = inv.country AND mult.date = inv.date
+          JOIN sums on sums.country = mult.country AND sums.date = mult.date
+    )
+    SELECT *, nFin/nPrev - 1 AS growth, log(2)/log(nFin/nPrev) AS doubling
+      FROM (SELECT f.*, exp(b) - 1 AS nFin, exp(a* (-1) + b) - 1 AS nPrev
+              FROM fit f JOIN init i on i.country = f.country
+                          AND f.date <= date(i.fin,'-3 days'))
+     WHERE nPrev > 0 AND nFin > 0;
+  } {
+    if {$parent!=0} continue
+    if {![string match SCAN* $detail]} continue
+    lappend res SCAN
+  }
+  set res
+} {SCAN}
+# ^^^^^^-- there should only be one top-level table scan in the query plan.
+
+finish_test
diff --git a/test/where2.test b/test/where2.test
new file mode 100644
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+# 2005 July 28
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the use of indices in WHERE clauses
+# based on recent changes to the optimizer.
+#
+# $Id: where2.test,v 1.15 2009/02/02 01:50:40 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Build some test data
+#
+do_test where2-1.0 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t1(w int, x int, y int, z int);
+  }
+  for {set i 1} {$i<=100} {incr i} {
+    set w $i
+    set x [expr {int(log($i)/log(2))}]
+    set y [expr {$i*$i + 2*$i + 1}]
+    set z [expr {$x+$y}]
+    ifcapable tclvar {
+      execsql {INSERT INTO t1 VALUES($::w,$::x,$::y,$::z)}
+    } else {
+      execsql {INSERT INTO t1 VALUES(:w,:x,:y,:z)}
+    }
+  }
+  execsql {
+    CREATE UNIQUE INDEX i1w ON t1(w);
+    CREATE INDEX i1xy ON t1(x,y);
+    CREATE INDEX i1zyx ON t1(z,y,x);
+    COMMIT;
+  }
+} {}
+
+# Do an SQL statement.  Append the search count to the end of the result.
+#
+proc count sql {
+  set ::sqlite_search_count 0
+  return [concat [execsql $sql] $::sqlite_search_count]
+}
+
+# This procedure executes the SQL.  Then it checks to see if the OP_Sort
+# opcode was executed.  If an OP_Sort did occur, then "sort" is appended
+# to the result.  If no OP_Sort happened, then "nosort" is appended.
+#
+# This procedure is used to check to make sure sorting is or is not
+# occurring as expected.
+#
+proc cksort {sql} {
+  set data [execsql $sql]
+  if {[db status sort]} {set x sort} {set x nosort}
+  lappend data $x
+  return $data
+}
+
+# This procedure executes the SQL.  Then it appends to the result the
+# "sort" or "nosort" keyword (as in the cksort procedure above) then
+# it appends the name of the table and index used.
+#
+proc queryplan {sql} {
+  set ::sqlite_sort_count 0
+  set data [execsql $sql]
+  if {$::sqlite_sort_count} {set x sort} {set x nosort}
+  lappend data $x
+  set eqp [execsql "EXPLAIN QUERY PLAN $sql"]
+  # puts eqp=$eqp
+  foreach {a b c x} $eqp {
+    if {[regexp {SCAN CONSTANT} $x]} {
+      # noop
+    } elseif {[regexp {(SCAN|SEARCH) (\w+ AS )?(\w+) USING.* INDEX (\w+)\y} \
+        $x all ss as tab idx]} {
+      lappend data $tab $idx
+    } elseif {[regexp {(SCAN|SEARCH) (\w+ AS )?(\w+)\y} $x all ss as tab]} {
+      lappend data $tab *
+    }
+  }
+  return $data   
+}
+
+
+# Prefer a UNIQUE index over another index.
+#
+do_test where2-1.1 {
+  queryplan {
+    SELECT * FROM t1 WHERE w=85 AND x=6 AND y=7396
+  }
+} {85 6 7396 7402 nosort t1 i1w}
+
+# Always prefer a rowid== constraint over any other index.
+#
+do_test where2-1.3 {
+  queryplan {
+    SELECT * FROM t1 WHERE w=85 AND x=6 AND y=7396 AND rowid=85
+  }
+} {85 6 7396 7402 nosort t1 *}
+
+# When constrained by a UNIQUE index, the ORDER BY clause is always ignored.
+#
+do_test where2-2.1 {
+  queryplan {
+    SELECT * FROM t1 WHERE w=85 ORDER BY random();
+  }
+} {85 6 7396 7402 nosort t1 i1w}
+do_test where2-2.2 {
+  queryplan {
+    SELECT * FROM t1 WHERE x=6 AND y=7396 ORDER BY random();
+  }
+} {85 6 7396 7402 sort t1 i1xy}
+do_test where2-2.3 {
+  queryplan {
+    SELECT * FROM t1 WHERE rowid=85 AND x=6 AND y=7396 ORDER BY random();
+  }
+} {85 6 7396 7402 nosort t1 *}
+
+# Ticket [65bdeb9739605cc22966f49208452996ff29a640] 2014-02-26
+# Make sure "ORDER BY random" does not gets optimized out.
+#
+do_test where2-2.4 {
+  db eval {
+    CREATE TABLE x1(a INTEGER PRIMARY KEY, b DEFAULT 1);
+    WITH RECURSIVE
+       cnt(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM cnt WHERE x<50)
+    INSERT INTO x1 SELECT x, 1 FROM cnt;
+    CREATE TABLE x2(x INTEGER PRIMARY KEY);
+    INSERT INTO x2 VALUES(1);
+  }
+  set sql {SELECT * FROM x1, x2 WHERE x=1 ORDER BY random()}
+  set out1 [db eval $sql]
+  set out2 [db eval $sql]
+  set out3 [db eval $sql]
+  expr {$out1!=$out2 && $out2!=$out3}
+} {1}
+do_execsql_test where2-2.5 {
+  -- random() is not optimized out
+  EXPLAIN SELECT * FROM x1, x2 WHERE x=1 ORDER BY random();
+} {/ random/}
+do_execsql_test where2-2.5b {
+  -- random() is not optimized out
+  EXPLAIN SELECT * FROM x1, x2 WHERE x=1 ORDER BY random();
+} {/ SorterOpen /}
+do_execsql_test where2-2.6 {
+  -- other constant functions are optimized out
+  EXPLAIN SELECT * FROM x1, x2 WHERE x=1 ORDER BY abs(5);
+} {~/ abs/}
+do_execsql_test where2-2.6b {
+  -- other constant functions are optimized out
+  EXPLAIN SELECT * FROM x1, x2 WHERE x=1 ORDER BY abs(5);
+} {~/ SorterOpen /}
+
+
+
+# Efficient handling of forward and reverse table scans.
+#
+do_test where2-3.1 {
+  queryplan {
+    SELECT * FROM t1 ORDER BY rowid LIMIT 2
+  }
+} {1 0 4 4 2 1 9 10 nosort t1 *}
+do_test where2-3.2 {
+  queryplan {
+    SELECT * FROM t1 ORDER BY rowid DESC LIMIT 2
+  }
+} {100 6 10201 10207 99 6 10000 10006 nosort t1 *}
+
+# The IN operator can be used by indices at multiple layers
+#
+ifcapable subquery {
+  do_test where2-4.1 {
+    queryplan {
+      SELECT * FROM t1 WHERE z IN (10207,10006) AND y IN (10000,10201)
+                       AND x>0 AND x<10
+      ORDER BY w
+    }
+  } {99 6 10000 10006 100 6 10201 10207 sort t1 i1zyx}
+  do_test where2-4.2 {
+    queryplan {
+      SELECT * FROM t1 WHERE z IN (10207,10006) AND y=10000
+                       AND x>0 AND x<10
+      ORDER BY w
+    }
+  } {99 6 10000 10006 sort t1 i1zyx}
+  do_test where2-4.3 {
+    queryplan {
+      SELECT * FROM t1 WHERE z=10006 AND y IN (10000,10201)
+                       AND x>0 AND x<10
+      ORDER BY w
+    }
+  } {99 6 10000 10006 sort t1 i1zyx}
+  ifcapable compound {
+    do_test where2-4.4 {
+      queryplan {
+        SELECT * FROM t1 WHERE z IN (SELECT 10207 UNION SELECT 10006)
+                         AND y IN (10000,10201)
+                         AND x>0 AND x<10
+        ORDER BY w
+      }
+    } {99 6 10000 10006 100 6 10201 10207 sort t1 i1zyx}
+    do_test where2-4.5 {
+      queryplan {
+        SELECT * FROM t1 WHERE z IN (SELECT 10207 UNION SELECT 10006)
+                         AND y IN (SELECT 10000 UNION SELECT 10201)
+                         AND x>0 AND x<10
+        ORDER BY w
+      }
+    } {99 6 10000 10006 100 6 10201 10207 sort t1 i1zyx}
+  }
+  do_test where2-4.6a {
+    queryplan {
+      SELECT * FROM t1
+       WHERE x IN (1,2,3,4,5,6,7,8)
+         AND y IN (10000,10001,10002,10003,10004,10005)
+       ORDER BY x
+    }
+  } {99 6 10000 10006 nosort t1 i1xy}
+  do_test where2-4.6b {
+    queryplan {
+      SELECT * FROM t1
+       WHERE x IN (1,2,3,4,5,6,7,8)
+         AND y IN (10000,10001,10002,10003,10004,10005)
+       ORDER BY x DESC
+    }
+  } {99 6 10000 10006 nosort t1 i1xy}
+  do_test where2-4.6c {
+    queryplan {
+      SELECT * FROM t1
+       WHERE x IN (1,2,3,4,5,6,7,8)
+         AND y IN (10000,10001,10002,10003,10004,10005)
+       ORDER BY x, y
+    }
+  } {99 6 10000 10006 nosort t1 i1xy}
+  do_test where2-4.6d {
+    queryplan {
+      SELECT * FROM t1
+       WHERE x IN (1,2,3,4,5,6,7,8)
+         AND y IN (10000,10001,10002,10003,10004,10005)
+       ORDER BY x, y DESC
+    }
+  } {99 6 10000 10006 sort t1 i1xy}
+
+  # Duplicate entires on the RHS of an IN operator do not cause duplicate
+  # output rows.
+  #
+  do_test where2-4.6x {
+    queryplan {
+      SELECT * FROM t1 WHERE z IN (10207,10006,10006,10207)
+      ORDER BY w
+    }
+  } {99 6 10000 10006 100 6 10201 10207 sort t1 i1zyx}
+  do_test where2-4.6y {
+    queryplan {
+      SELECT * FROM t1 WHERE z IN (10207,10006,10006,10207)
+      ORDER BY w DESC
+    }
+  } {100 6 10201 10207 99 6 10000 10006 sort t1 i1zyx}
+  ifcapable compound {
+    do_test where2-4.7 {
+      queryplan {
+        SELECT * FROM t1 WHERE z IN (
+           SELECT 10207 UNION ALL SELECT 10006
+           UNION ALL SELECT 10006 UNION ALL SELECT 10207)
+        ORDER BY w
+      }
+    } {99 6 10000 10006 100 6 10201 10207 sort t1 i1zyx}
+  }
+
+} ;# ifcapable subquery
+
+# The use of an IN operator disables the index as a sorter.
+#
+do_test where2-5.1 {
+  queryplan {
+    SELECT * FROM t1 WHERE w=99 ORDER BY w
+  }
+} {99 6 10000 10006 nosort t1 i1w}
+
+ifcapable subquery {
+  do_test where2-5.2a {
+    queryplan {
+      SELECT * FROM t1 WHERE w IN (99) ORDER BY w
+    }
+  } {99 6 10000 10006 nosort t1 i1w}
+  do_test where2-5.2b {
+    queryplan {
+      SELECT * FROM t1 WHERE w IN (99) ORDER BY w DESC
+    }
+  } {99 6 10000 10006 nosort t1 i1w}
+}
+
+# Verify that OR clauses get translated into IN operators.
+#
+set ::idx {}
+ifcapable subquery {set ::idx i1w}
+do_test where2-6.1.1 {
+  queryplan {
+    SELECT * FROM t1 WHERE w=99 OR w=100 ORDER BY +w
+  }
+} [list 99 6 10000 10006 100 6 10201 10207 sort t1 $::idx]
+do_test where2-6.1.2 {
+  queryplan {
+    SELECT * FROM t1 WHERE 99=w OR 100=w ORDER BY +w
+  }
+} [list 99 6 10000 10006 100 6 10201 10207 sort t1 $::idx]
+do_test where2-6.2 {
+  queryplan {
+    SELECT * FROM t1 WHERE w=99 OR w=100 OR 6=w ORDER BY +w
+  }
+} [list 6 2 49 51 99 6 10000 10006 100 6 10201 10207 sort t1 $::idx]
+
+do_test where2-6.3 {
+  queryplan {
+    SELECT * FROM t1 WHERE w=99 OR w=100 OR 6=+w ORDER BY +w
+  }
+} {6 2 49 51 99 6 10000 10006 100 6 10201 10207 sort t1 *}
+do_test where2-6.4 {
+  queryplan {
+    SELECT *, '|' FROM t1 WHERE w=99 OR +w=100 OR 6=w ORDER BY +w
+  }
+} {6 2 49 51 | 99 6 10000 10006 | 100 6 10201 10207 | sort t1 *}
+do_test where2-6.5 {
+  queryplan {
+    SELECT *, '|' FROM t1 WHERE w=99 OR y=10201 OR 6=w ORDER BY +w
+  }
+} {6 2 49 51 | 99 6 10000 10006 | 100 6 10201 10207 | sort t1 *}
+
+set ::idx {}
+ifcapable subquery {set ::idx i1zyx}
+do_test where2-6.5 {
+  queryplan {
+    SELECT b.* FROM t1 a, t1 b
+     WHERE a.w=1 AND (a.y=b.z OR b.z=10)
+     ORDER BY +b.w
+  }
+} [list 1 0 4 4 2 1 9 10 sort a i1w b $::idx]
+do_test where2-6.6 {
+  queryplan {
+    SELECT b.* FROM t1 a, t1 b
+     WHERE a.w=1 AND (b.z=10 OR a.y=b.z OR b.z=10)
+     ORDER BY +b.w
+  }
+} [list 1 0 4 4 2 1 9 10 sort a i1w b $::idx]
+
+if {[permutation] != "no_optimization"} {
+
+# Ticket #2249.  Make sure the OR optimization is not attempted if
+# comparisons between columns of different affinities are needed.
+#
+do_test where2-6.7 {
+  execsql {
+    CREATE TABLE t2249a(a TEXT UNIQUE, x CHAR(100));
+    CREATE TABLE t2249b(b INTEGER);
+    INSERT INTO t2249a(a) VALUES('0123');
+    INSERT INTO t2249b VALUES(123);
+  }
+  queryplan {
+    -- Because a is type TEXT and b is type INTEGER, both a and b
+    -- will attempt to convert to NUMERIC before the comparison.
+    -- They will thus compare equal.
+    --
+    SELECT b,a FROM t2249b CROSS JOIN t2249a WHERE a=b;
+  }
+} {123 0123 nosort t2249b * t2249a sqlite_autoindex_t2249a_1}
+do_test where2-6.9 {
+  queryplan {
+    -- The + operator removes affinity from the rhs.  No conversions
+    -- occur and the comparison is false.  The result is an empty set.
+    --
+    SELECT b,a FROM t2249b CROSS JOIN t2249a WHERE a=+b;
+  }
+} {nosort t2249b * t2249a sqlite_autoindex_t2249a_1}
+do_test where2-6.9.2 {
+  # The same thing but with the expression flipped around.
+  queryplan {
+    SELECT b,a FROM t2249b CROSS JOIN t2249a WHERE +b=a
+  }
+} {nosort t2249b * t2249a sqlite_autoindex_t2249a_1}
+do_test where2-6.10 {
+  queryplan {
+    -- Use + on both sides of the comparison to disable indices
+    -- completely.  Make sure we get the same result.
+    --
+    SELECT b,a FROM t2249b CROSS JOIN t2249a WHERE +a=+b;
+  }
+} {nosort t2249b * t2249a sqlite_autoindex_t2249a_1}
+do_test where2-6.11 {
+  # This will not attempt the OR optimization because of the a=b
+  # comparison.
+  queryplan {
+    SELECT b,a FROM t2249b CROSS JOIN t2249a WHERE a=b OR a='hello';
+  }
+} {123 0123 nosort t2249b * t2249a sqlite_autoindex_t2249a_1}
+do_test where2-6.11.2 {
+  # Permutations of the expression terms.
+  queryplan {
+    SELECT b,a FROM t2249b CROSS JOIN t2249a WHERE b=a OR a='hello';
+  }
+} {123 0123 nosort t2249b * t2249a sqlite_autoindex_t2249a_1}
+do_test where2-6.11.3 {
+  # Permutations of the expression terms.
+  queryplan {
+    SELECT b,a FROM t2249b CROSS JOIN t2249a WHERE 'hello'=a OR b=a;
+  }
+} {123 0123 nosort t2249b * t2249a sqlite_autoindex_t2249a_1}
+do_test where2-6.11.4 {
+  # Permutations of the expression terms.
+  queryplan {
+    SELECT b,a FROM t2249b CROSS JOIN t2249a WHERE a='hello' OR b=a;
+  }
+} {123 0123 nosort t2249b * t2249a sqlite_autoindex_t2249a_1}
+ifcapable explain&&subquery {
+  # These tests are not run if subquery support is not included in the
+  # build. This is because these tests test the "a = 1 OR a = 2" to
+  # "a IN (1, 2)" optimisation transformation, which is not enabled if
+  # subqueries and the IN operator is not available.
+  #
+  do_test where2-6.12 {
+    # In this case, the +b disables the affinity conflict and allows
+    # the OR optimization to be used again.  The result is now an empty
+    # set, the same as in where2-6.9.
+    queryplan {
+      SELECT b,a FROM t2249b CROSS JOIN t2249a WHERE a=+b OR a='hello';
+    }
+  } {nosort t2249b * t2249a sqlite_autoindex_t2249a_1}
+  do_test where2-6.12.2 {
+    # In this case, the +b disables the affinity conflict and allows
+    # the OR optimization to be used again.  The result is now an empty
+    # set, the same as in where2-6.9.
+    queryplan {
+      SELECT b,a FROM t2249b CROSS JOIN t2249a WHERE a='hello' OR +b=a;
+    }
+  } {nosort t2249b * t2249a sqlite_autoindex_t2249a_1}
+  do_test where2-6.12.3 {
+    # In this case, the +b disables the affinity conflict and allows
+    # the OR optimization to be used again.  The result is now an empty
+    # set, the same as in where2-6.9.
+    queryplan {
+      SELECT b,a FROM t2249b CROSS JOIN t2249a WHERE +b=a OR a='hello';
+    }
+  } {nosort t2249b * t2249a sqlite_autoindex_t2249a_1}
+  do_test where2-6.13 {
+    # The addition of +a on the second term disabled the OR optimization.
+    # But we should still get the same empty-set result as in where2-6.9.
+    queryplan {
+      SELECT b,a FROM t2249b CROSS JOIN t2249a WHERE a=+b OR +a='hello';
+    }
+  } {nosort t2249b * t2249a sqlite_autoindex_t2249a_1}
+}
+
+# Variations on the order of terms in a WHERE clause in order
+# to make sure the OR optimizer can recognize them all.
+do_test where2-6.20 {
+  queryplan {
+    SELECT x.a, y.a FROM t2249a x CROSS JOIN t2249a y WHERE x.a=y.a
+  }
+} {0123 0123 nosort x sqlite_autoindex_t2249a_1 y sqlite_autoindex_t2249a_1}
+ifcapable explain&&subquery {
+  # These tests are not run if subquery support is not included in the
+  # build. This is because these tests test the "a = 1 OR a = 2" to
+  # "a IN (1, 2)" optimisation transformation, which is not enabled if
+  # subqueries and the IN operator is not available.
+  #
+  do_test where2-6.21 {
+    queryplan {
+      SELECT x.a,y.a FROM t2249a x CROSS JOIN t2249a y
+       WHERE x.a=y.a OR y.a='hello'
+    }
+  } {0123 0123 nosort x sqlite_autoindex_t2249a_1 y sqlite_autoindex_t2249a_1}
+  do_test where2-6.22 {
+    queryplan {
+      SELECT x.a,y.a FROM t2249a x CROSS JOIN t2249a y
+       WHERE y.a=x.a OR y.a='hello'
+    }
+  } {0123 0123 nosort x sqlite_autoindex_t2249a_1 y sqlite_autoindex_t2249a_1}
+  do_test where2-6.23 {
+    queryplan {
+      SELECT x.a,y.a FROM t2249a x CROSS JOIN t2249a y
+       WHERE y.a='hello' OR x.a=y.a
+    }
+  } {0123 0123 nosort x sqlite_autoindex_t2249a_1 y sqlite_autoindex_t2249a_1}
+}
+
+# Unique queries (queries that are guaranteed to return only a single
+# row of result) do not call the sorter.  But all tables must give
+# a unique result.  If any one table in the join does not give a unique
+# result then sorting is necessary.
+#
+do_test where2-7.1 {
+  cksort {
+    create table t8(a unique, b, c);
+    insert into t8 values(1,2,3);
+    insert into t8 values(2,3,4);
+    create table t9(x,y);
+    insert into t9 values(2,4);
+    insert into t9 values(2,3);
+    select y from t8, t9 where a=1 order by a, y;
+  }
+} {3 4 sort}
+do_test where2-7.2 {
+  cksort {
+    select * from t8 where a=1 order by b, c
+  }
+} {1 2 3 nosort}
+do_test where2-7.3 {
+  cksort {
+    select * from t8, t9 where a=1 and y=3 order by b, x
+  }
+} {1 2 3 2 3 sort}
+do_test where2-7.4 {
+  cksort {
+    create unique index i9y on t9(y);
+    select * from t8, t9 where a=1 and y=3 order by b, x
+  }
+} {1 2 3 2 3 nosort}
+
+} ;# if {[permutation] != "no_optimization"}
+
+# Ticket #1807.  Using IN constrains on multiple columns of
+# a multi-column index.
+#
+ifcapable subquery {
+  do_test where2-8.1 {
+    execsql {
+      SELECT * FROM t1 WHERE x IN (20,21) AND y IN (1,2)
+    }
+  } {}
+  do_test where2-8.2 {
+    execsql {
+      SELECT * FROM t1 WHERE x IN (1,2) AND y IN (-5,-6)
+    }
+  } {}
+  execsql {CREATE TABLE tx AS SELECT * FROM t1}
+  do_test where2-8.3 {
+    execsql {
+      SELECT w FROM t1
+       WHERE x IN (SELECT x FROM tx WHERE rowid<0)
+         AND +y IN (SELECT y FROM tx WHERE rowid=1)
+    }
+  } {}
+  do_test where2-8.4 {
+    execsql {
+      SELECT w FROM t1
+       WHERE x IN (SELECT x FROM tx WHERE rowid=1)
+         AND y IN (SELECT y FROM tx WHERE rowid<0)
+    }
+  } {}
+  #set sqlite_where_trace 1
+  do_test where2-8.5 {
+    execsql {
+      CREATE INDEX tx_xyz ON tx(x, y, z, w);
+      SELECT w FROM tx
+       WHERE x IN (SELECT x FROM t1 WHERE w BETWEEN 10 AND 20)
+         AND y IN (SELECT y FROM t1 WHERE w BETWEEN 10 AND 20)
+         AND z IN (SELECT z FROM t1 WHERE w BETWEEN 12 AND 14)
+    }
+  } {12 13 14}
+  do_test where2-8.6 {
+    execsql {
+      SELECT w FROM tx
+       WHERE x IN (SELECT x FROM t1 WHERE w BETWEEN 10 AND 20)
+         AND y IN (SELECT y FROM t1 WHERE w BETWEEN 12 AND 14)
+         AND z IN (SELECT z FROM t1 WHERE w BETWEEN 10 AND 20)
+    }
+  } {12 13 14}
+  do_test where2-8.7 {
+    execsql {
+      SELECT w FROM tx
+       WHERE x IN (SELECT x FROM t1 WHERE w BETWEEN 12 AND 14)
+         AND y IN (SELECT y FROM t1 WHERE w BETWEEN 10 AND 20)
+         AND z IN (SELECT z FROM t1 WHERE w BETWEEN 10 AND 20)
+    }
+  } {10 11 12 13 14 15}
+  do_test where2-8.8 {
+    execsql {
+      SELECT w FROM tx
+       WHERE x IN (SELECT x FROM t1 WHERE w BETWEEN 10 AND 20)
+         AND y IN (SELECT y FROM t1 WHERE w BETWEEN 10 AND 20)
+         AND z IN (SELECT z FROM t1 WHERE w BETWEEN 10 AND 20)
+    }
+  } {10 11 12 13 14 15 16 17 18 19 20}
+  do_test where2-8.9 {
+    execsql {
+      SELECT w FROM tx
+       WHERE x IN (SELECT x FROM t1 WHERE w BETWEEN 10 AND 20)
+         AND y IN (SELECT y FROM t1 WHERE w BETWEEN 10 AND 20)
+         AND z IN (SELECT z FROM t1 WHERE w BETWEEN 2 AND 4)
+    }
+  } {}
+  do_test where2-8.10 {
+    execsql {
+      SELECT w FROM tx
+       WHERE x IN (SELECT x FROM t1 WHERE w BETWEEN 10 AND 20)
+         AND y IN (SELECT y FROM t1 WHERE w BETWEEN 2 AND 4)
+         AND z IN (SELECT z FROM t1 WHERE w BETWEEN 10 AND 20)
+    }
+  } {}
+  do_test where2-8.11 {
+    execsql {
+      SELECT w FROM tx
+       WHERE x IN (SELECT x FROM t1 WHERE w BETWEEN 2 AND 4)
+         AND y IN (SELECT y FROM t1 WHERE w BETWEEN 10 AND 20)
+         AND z IN (SELECT z FROM t1 WHERE w BETWEEN 10 AND 20)
+    }
+  } {}
+  do_test where2-8.12 {
+    execsql {
+      SELECT w FROM tx
+       WHERE x IN (SELECT x FROM t1 WHERE w BETWEEN 10 AND 20)
+         AND y IN (SELECT y FROM t1 WHERE w BETWEEN 10 AND 20)
+         AND z IN (SELECT z FROM t1 WHERE w BETWEEN -4 AND -2)
+    }
+  } {}
+  do_test where2-8.13 {
+    execsql {
+      SELECT w FROM tx
+       WHERE x IN (SELECT x FROM t1 WHERE w BETWEEN 10 AND 20)
+         AND y IN (SELECT y FROM t1 WHERE w BETWEEN -4 AND -2)
+         AND z IN (SELECT z FROM t1 WHERE w BETWEEN 10 AND 20)
+    }
+  } {}
+  do_test where2-8.14 {
+    execsql {
+      SELECT w FROM tx
+       WHERE x IN (SELECT x FROM t1 WHERE w BETWEEN -4 AND -2)
+         AND y IN (SELECT y FROM t1 WHERE w BETWEEN 10 AND 20)
+         AND z IN (SELECT z FROM t1 WHERE w BETWEEN 10 AND 20)
+    }
+  } {}
+  do_test where2-8.15 {
+    execsql {
+      SELECT w FROM tx
+       WHERE x IN (SELECT x FROM t1 WHERE w BETWEEN 10 AND 20)
+         AND y IN (SELECT y FROM t1 WHERE w BETWEEN 10 AND 20)
+         AND z IN (SELECT z FROM t1 WHERE w BETWEEN 200 AND 300)
+    }
+  } {}
+  do_test where2-8.16 {
+    execsql {
+      SELECT w FROM tx
+       WHERE x IN (SELECT x FROM t1 WHERE w BETWEEN 10 AND 20)
+         AND y IN (SELECT y FROM t1 WHERE w BETWEEN 200 AND 300)
+         AND z IN (SELECT z FROM t1 WHERE w BETWEEN 10 AND 20)
+    }
+  } {}
+  do_test where2-8.17 {
+    execsql {
+      SELECT w FROM tx
+       WHERE x IN (SELECT x FROM t1 WHERE w BETWEEN 200 AND 300)
+         AND y IN (SELECT y FROM t1 WHERE w BETWEEN 10 AND 20)
+         AND z IN (SELECT z FROM t1 WHERE w BETWEEN 10 AND 20)
+    }
+  } {}
+  do_test where2-8.18 {
+    execsql {
+      SELECT w FROM tx
+       WHERE x IN (SELECT x FROM t1 WHERE +w BETWEEN 10 AND 20)
+         AND y IN (SELECT y FROM t1 WHERE +w BETWEEN 10 AND 20)
+         AND z IN (SELECT z FROM t1 WHERE +w BETWEEN 200 AND 300)
+    }
+  } {}
+  do_test where2-8.19 {
+    execsql {
+      SELECT w FROM tx
+       WHERE x IN (SELECT x FROM t1 WHERE +w BETWEEN 10 AND 20)
+         AND y IN (SELECT y FROM t1 WHERE +w BETWEEN 200 AND 300)
+         AND z IN (SELECT z FROM t1 WHERE +w BETWEEN 10 AND 20)
+    }
+  } {}
+  do_test where2-8.20 {
+    execsql {
+      SELECT w FROM tx
+       WHERE x IN (SELECT x FROM t1 WHERE +w BETWEEN 200 AND 300)
+         AND y IN (SELECT y FROM t1 WHERE +w BETWEEN 10 AND 20)
+         AND z IN (SELECT z FROM t1 WHERE +w BETWEEN 10 AND 20)
+    }
+  } {}
+}  
+
+# Make sure WHERE clauses of the form A=1 AND (B=2 OR B=3) are optimized
+# when we have an index on A and B.
+#
+ifcapable or_opt&&tclvar {
+  do_test where2-9.1 {
+    execsql {
+      BEGIN;
+      CREATE TABLE t10(a,b,c);
+      INSERT INTO t10 VALUES(1,1,1);
+      INSERT INTO t10 VALUES(1,2,2);
+      INSERT INTO t10 VALUES(1,3,3);
+    }
+    for {set i 4} {$i<=1000} {incr i} {
+      execsql {INSERT INTO t10 VALUES(1,$i,$i)}
+    }
+    execsql {
+      CREATE INDEX i10 ON t10(a,b);
+      COMMIT;
+      SELECT count(*) FROM t10;
+    }
+  } 1000
+  ifcapable subquery {
+    do_test where2-9.2 {
+      count {
+        SELECT * FROM t10 WHERE a=1 AND (b=2 OR b=3)
+      }
+    } {1 2 2 1 3 3 7}
+  }
+}
+
+# Indices with redundant columns
+#
+do_test where2-11.1 {
+  execsql {
+    CREATE TABLE t11(a,b,c,d);
+    CREATE INDEX i11aba ON t11(a,b,a,c); -- column A occurs twice.
+    INSERT INTO t11 VALUES(1,2,3,4);
+    INSERT INTO t11 VALUES(5,6,7,8);
+    INSERT INTO t11 VALUES(1,2,9,10);
+    INSERT INTO t11 VALUES(5,11,12,13);
+    SELECT c FROM t11 WHERE a=1 AND b=2 ORDER BY c;
+  }
+} {3 9}
+do_test where2-11.2 {
+  execsql {
+    CREATE INDEX i11cccccccc ON t11(c,c,c,c,c,c,c,c); -- repeated column
+    SELECT d FROM t11 WHERE c=9;
+  }
+} {10}
+do_test where2-11.3 {
+  execsql {
+    SELECT d FROM t11 WHERE c IN (1,2,3,4,5);
+  }
+} {4}
+do_test where2-11.4 {
+  execsql {
+    SELECT d FROM t11 WHERE c=7 OR (a=1 AND b=2) ORDER BY d;
+  }
+} {4 8 10}
+
+# Verify that the OR clause is used in an outer loop even when
+# the OR clause scores slightly better on an inner loop.
+if {[permutation] != "no_optimization"} {
+do_execsql_test where2-12.1 {
+  CREATE TABLE t12(x INTEGER PRIMARY KEY, y INT, z CHAR(100));
+  CREATE INDEX t12y ON t12(y);
+  EXPLAIN QUERY PLAN
+    SELECT a.x, b.x
+      FROM t12 AS a JOIN t12 AS b ON a.y=b.x
+     WHERE (b.x=$abc OR b.y=$abc);
+} {/SEARCH b .*SEARCH b /}
+}
+
+# Verify that all necessary OP_OpenRead opcodes occur in the OR optimization.
+#
+do_execsql_test where2-13.1 {
+  CREATE TABLE t13(a,b);
+  CREATE INDEX t13a ON t13(a);
+  INSERT INTO t13 VALUES(4,5);
+  SELECT * FROM t13 WHERE (1=2 AND a=3) OR a=4;
+} {4 5}
+
+# https://www.sqlite.org/src/info/5e3c886796e5512e  (2016-03-09)
+# Correlated subquery on the RHS of an IN operator 
+#
+do_execsql_test where2-14.1 {
+  CREATE TABLE t14a(x INTEGER PRIMARY KEY);
+  INSERT INTO t14a(x) VALUES(1),(2),(3),(4);
+  CREATE TABLE t14b(y INTEGER PRIMARY KEY);
+  INSERT INTO t14b(y) VALUES(1);
+  SELECT x FROM t14a WHERE x NOT IN (SELECT x FROM t14b);
+} {}
+
+finish_test
diff --git a/test/where3.test b/test/where3.test
new file mode 100644
index 0000000000000000000000000000000000000000..f574c0d55fa9222e5b36e9d2eb98a930dc265cbc
--- /dev/null
+++ b/test/where3.test
@@ -0,0 +1,518 @@
+# 2006 January 31
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the join reordering optimization
+# in cases that include a LEFT JOIN.
+#
+# $Id: where3.test,v 1.4 2008/04/17 19:14:02 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# The following is from ticket #1652.
+#
+# A comma join then a left outer join:  A,B left join C.
+# Arrange indices so that the B table is chosen to go first.
+# Also put an index on C, but make sure that A is chosen before C.
+#
+do_test where3-1.1 {
+  execsql {
+    CREATE TABLE t1(a, b);
+    CREATE TABLE t2(p, q);
+    CREATE TABLE t3(x, y);
+    
+    INSERT INTO t1 VALUES(111,'one');
+    INSERT INTO t1 VALUES(222,'two');
+    INSERT INTO t1 VALUES(333,'three');
+    
+    INSERT INTO t2 VALUES(1,111);
+    INSERT INTO t2 VALUES(2,222);
+    INSERT INTO t2 VALUES(4,444);
+    CREATE INDEX t2i1 ON t2(p);
+    
+    INSERT INTO t3 VALUES(999,'nine');
+    CREATE INDEX t3i1 ON t3(x);
+    
+    SELECT * FROM t1, t2 LEFT JOIN t3 ON q=x WHERE p=2 AND a=q;
+  }
+} {222 two 2 222 {} {}}
+
+ifcapable explain&&!cursorhints {
+  do_test where3-1.1.1 {
+     explain_no_trace {SELECT * FROM t1, t2 LEFT JOIN t3 ON q=x
+                        WHERE p=2 AND a=q}
+  } [explain_no_trace {SELECT * FROM t1, t2 LEFT JOIN t3 ON x=q
+                        WHERE p=2 AND a=q}]
+}
+
+# Ticket #1830
+#
+# This is similar to the above but with the LEFT JOIN on the
+# other side.
+#
+do_test where3-1.2 {
+  execsql {
+    CREATE TABLE parent1(parent1key, child1key, Child2key, child3key);
+    CREATE TABLE child1 ( child1key NVARCHAR, value NVARCHAR );
+    CREATE UNIQUE INDEX PKIDXChild1 ON child1 ( child1key );
+    CREATE TABLE child2 ( child2key NVARCHAR, value NVARCHAR );
+
+    INSERT INTO parent1(parent1key,child1key,child2key)
+       VALUES ( 1, 'C1.1', 'C2.1' );
+    INSERT INTO child1 ( child1key, value ) VALUES ( 'C1.1', 'Value for C1.1' );
+    INSERT INTO child2 ( child2key, value ) VALUES ( 'C2.1', 'Value for C2.1' );
+
+    INSERT INTO parent1 ( parent1key, child1key, child2key )
+       VALUES ( 2, 'C1.2', 'C2.2' );
+    INSERT INTO child2 ( child2key, value ) VALUES ( 'C2.2', 'Value for C2.2' );
+
+    INSERT INTO parent1 ( parent1key, child1key, child2key )
+       VALUES ( 3, 'C1.3', 'C2.3' );
+    INSERT INTO child1 ( child1key, value ) VALUES ( 'C1.3', 'Value for C1.3' );
+    INSERT INTO child2 ( child2key, value ) VALUES ( 'C2.3', 'Value for C2.3' );
+
+    SELECT parent1.parent1key, child1.value, child2.value
+    FROM parent1
+    LEFT OUTER JOIN child1 ON child1.child1key = parent1.child1key
+    INNER JOIN child2 ON child2.child2key = parent1.child2key;
+  }
+} {1 {Value for C1.1} {Value for C2.1} 2 {} {Value for C2.2} 3 {Value for C1.3} {Value for C2.3}}
+
+ifcapable explain&&!cursorhints {
+  do_test where3-1.2.1 {
+     explain_no_trace {
+       SELECT parent1.parent1key, child1.value, child2.value
+       FROM parent1
+       LEFT OUTER JOIN child1 ON child1.child1key = parent1.child1key
+       INNER JOIN child2 ON child2.child2key = parent1.child2key;
+     }
+  } [explain_no_trace {
+       SELECT parent1.parent1key, child1.value, child2.value
+       FROM parent1
+       LEFT OUTER JOIN child1 ON parent1.child1key = child1.child1key 
+       INNER JOIN child2 ON child2.child2key = parent1.child2key;
+     }]
+}
+
+# This procedure executes the SQL.  Then it appends 
+# the names of the table and index used
+#
+proc queryplan {sql} {
+  set ::sqlite_sort_count 0
+  set data [execsql $sql]
+  set eqp [execsql "EXPLAIN QUERY PLAN $sql"]
+  # puts eqp=$eqp
+  foreach {a b c x} $eqp {
+    if {[regexp {SCAN CONSTANT} $x]} {
+      # noop
+    } elseif {[regexp {(SCAN|SEARCH) (\w+ AS )?(\w+) USING.* INDEX (\w+)\y} \
+        $x all ss as tab idx]} {
+      lappend data $tab $idx
+    } elseif {[regexp {(SCAN|SEARCH) (\w+ AS )?(\w+)\y} $x all ss as tab]} {
+      lappend data $tab *
+    }
+  }
+  return $data   
+}
+
+
+# If you have a from clause of the form:   A B C left join D
+# then make sure the query optimizer is able to reorder the 
+# A B C part anyway it wants. 
+#
+# Following the fix to ticket #1652, there was a time when
+# the C table would not reorder.  So the following reorderings
+# were possible:
+#
+#            A B C left join D
+#            B A C left join D
+#
+# But these reorders were not allowed
+#
+#            C A B left join D
+#            A C B left join D
+#            C B A left join D
+#            B C A left join D
+#
+# The following tests are here to verify that the latter four
+# reorderings are allowed again.
+#
+do_test where3-2.1 {
+  execsql {
+    CREATE TABLE tA(apk integer primary key, ax);
+    CREATE TABLE tB(bpk integer primary key, bx);
+    CREATE TABLE tC(cpk integer primary key, cx);
+    CREATE TABLE tD(dpk integer primary key, dx);
+  }
+  queryplan {
+    SELECT * FROM tA, tB, tC LEFT JOIN tD ON dpk=cx
+     WHERE cpk=bx AND bpk=ax
+  }
+} {tA * tB * tC * tD *}
+do_test where3-2.1.1 {
+  queryplan {
+    SELECT * FROM tA, tB, tC LEFT JOIN tD ON cx=dpk
+     WHERE cpk=bx AND bpk=ax
+  }
+} {tA * tB * tC * tD *}
+do_test where3-2.1.2 {
+  queryplan {
+    SELECT * FROM tA, tB, tC LEFT JOIN tD ON cx=dpk
+     WHERE bx=cpk AND bpk=ax
+  }
+} {tA * tB * tC * tD *}
+do_test where3-2.1.3 {
+  queryplan {
+    SELECT * FROM tA, tB, tC LEFT JOIN tD ON cx=dpk
+     WHERE bx=cpk AND ax=bpk
+  }
+} {tA * tB * tC * tD *}
+do_test where3-2.1.4 {
+  queryplan {
+    SELECT * FROM tA, tB, tC LEFT JOIN tD ON dpk=cx
+     WHERE bx=cpk AND ax=bpk
+  }
+} {tA * tB * tC * tD *}
+do_test where3-2.1.5 {
+  queryplan {
+    SELECT * FROM tA, tB, tC LEFT JOIN tD ON dpk=cx
+     WHERE cpk=bx AND ax=bpk
+  }
+} {tA * tB * tC * tD *}
+do_test where3-2.2 {
+  queryplan {
+    SELECT * FROM tA, tB, tC LEFT JOIN tD ON dpk=cx
+     WHERE cpk=bx AND apk=bx
+  }
+} {tB * tA * tC * tD *}
+do_test where3-2.3 {
+  queryplan {
+    SELECT * FROM tA, tB, tC LEFT JOIN tD ON dpk=cx
+     WHERE cpk=bx AND apk=bx
+  }
+} {tB * tA * tC * tD *}
+do_test where3-2.4 {
+  queryplan {
+    SELECT * FROM tA, tB, tC LEFT JOIN tD ON dpk=cx
+     WHERE apk=cx AND bpk=ax
+  }
+} {tC * tA * tB * tD *}
+do_test where3-2.5 {
+  queryplan {
+    SELECT * FROM tA, tB, tC LEFT JOIN tD ON dpk=cx
+     WHERE cpk=ax AND bpk=cx
+  }
+} {tA * tC * tB * tD *}
+do_test where3-2.6 {
+  queryplan {
+    SELECT * FROM tA, tB, tC LEFT JOIN tD ON dpk=cx
+     WHERE bpk=cx AND apk=bx
+  }
+} {tC * tB * tA * tD *}
+do_test where3-2.7 {
+  queryplan {
+    SELECT * FROM tA, tB, tC LEFT JOIN tD ON dpk=cx
+     WHERE cpk=bx AND apk=cx
+  }
+} {tB * tC * tA * tD *}
+
+# Ticket [13f033c865f878953]
+# If the outer loop must be a full table scan, do not let ANALYZE trick
+# the planner into use a table for the outer loop that might be indexable
+# if held until an inner loop.
+# 
+do_execsql_test where3-3.0 {
+  CREATE TABLE t301(a INTEGER PRIMARY KEY,b,c);
+  CREATE INDEX t301c ON t301(c);
+  INSERT INTO t301 VALUES(1,2,3);
+  INSERT INTO t301 VALUES(2,2,3);
+  CREATE TABLE t302(x, y);
+  INSERT INTO t302 VALUES(4,5);
+  ANALYZE;
+}
+do_eqp_test where3-3.0a {
+  SELECT * FROM t302, t301 WHERE t302.x=5 AND t301.a=t302.y;
+} {
+  QUERY PLAN
+  |--SCAN t302
+  `--SEARCH t301 USING INTEGER PRIMARY KEY (rowid=?)
+}
+do_eqp_test where3-3.1 {
+  SELECT * FROM t301, t302 WHERE t302.x=5 AND t301.a=t302.y;
+} {
+  QUERY PLAN
+  |--SCAN t302
+  `--SEARCH t301 USING INTEGER PRIMARY KEY (rowid=?)
+}
+do_execsql_test where3-3.2 {
+  SELECT * FROM t301 WHERE c=3 AND a IS NULL;
+} {}
+do_execsql_test where3-3.3 {
+  SELECT * FROM t301 WHERE c=3 AND a IS NOT NULL;
+} {1 2 3 2 2 3}
+
+if 0 {  # Query planner no longer does this
+# Verify that when there are multiple tables in a join which must be
+# full table scans that the query planner attempts put the table with
+# the fewest number of output rows as the outer loop.
+#
+do_execsql_test where3-4.0 {
+  CREATE TABLE t400(a INTEGER PRIMARY KEY, b, c);
+  CREATE TABLE t401(p INTEGER PRIMARY KEY, q, r);
+  CREATE TABLE t402(x INTEGER PRIMARY KEY, y, z);
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t400, t401, t402 WHERE t402.z GLOB 'abc*';
+} {
+  0 0 2 {SCAN t402} 
+  0 1 0 {SCAN t400} 
+  0 2 1 {SCAN t401}
+}
+do_execsql_test where3-4.1 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t400, t401, t402 WHERE t401.r GLOB 'abc*';
+} {
+  0 0 1 {SCAN t401} 
+  0 1 0 {SCAN t400} 
+  0 2 2 {SCAN t402}
+}
+do_execsql_test where3-4.2 {
+  EXPLAIN QUERY PLAN
+  SELECT * FROM t400, t401, t402 WHERE t400.c GLOB 'abc*';
+} {
+  0 0 0 {SCAN t400} 
+  0 1 1 {SCAN t401} 
+  0 2 2 {SCAN t402}
+}
+} ;# endif
+
+# Verify that a performance regression encountered by firefox
+# has been fixed.
+#
+do_execsql_test where3-5.0 {
+  CREATE TABLE aaa (id INTEGER PRIMARY KEY, type INTEGER,
+                    fk INTEGER DEFAULT NULL, parent INTEGER,
+                    position INTEGER, title LONGVARCHAR,
+                    keyword_id INTEGER, folder_type TEXT,
+                    dateAdded INTEGER, lastModified INTEGER);
+  CREATE INDEX aaa_111 ON aaa (fk, type);
+  CREATE INDEX aaa_222 ON aaa (parent, position);
+  CREATE INDEX aaa_333 ON aaa (fk, lastModified);
+  CREATE TABLE bbb (id INTEGER PRIMARY KEY, type INTEGER,
+                    fk INTEGER DEFAULT NULL, parent INTEGER,
+                    position INTEGER, title LONGVARCHAR,
+                    keyword_id INTEGER, folder_type TEXT,
+                    dateAdded INTEGER, lastModified INTEGER);
+  CREATE INDEX bbb_111 ON bbb (fk, type);
+  CREATE INDEX bbb_222 ON bbb (parent, position);
+  CREATE INDEX bbb_333 ON bbb (fk, lastModified);
+}
+do_eqp_test where3-5.0a {
+   SELECT bbb.title AS tag_title 
+     FROM aaa JOIN bbb ON bbb.id = aaa.parent  
+    WHERE aaa.fk = 'constant'
+      AND LENGTH(bbb.title) > 0
+      AND bbb.parent = 4
+    ORDER BY bbb.title COLLATE NOCASE ASC;
+} {
+  QUERY PLAN
+  |--SEARCH aaa USING INDEX aaa_333 (fk=?)
+  |--SEARCH bbb USING INTEGER PRIMARY KEY (rowid=?)
+  `--USE TEMP B-TREE FOR ORDER BY
+}
+do_eqp_test where3-5.1 {
+   SELECT bbb.title AS tag_title 
+     FROM aaa JOIN aaa AS bbb ON bbb.id = aaa.parent  
+    WHERE aaa.fk = 'constant'
+      AND LENGTH(bbb.title) > 0
+      AND bbb.parent = 4
+    ORDER BY bbb.title COLLATE NOCASE ASC;
+} {
+  QUERY PLAN
+  |--SEARCH aaa USING INDEX aaa_333 (fk=?)
+  |--SEARCH bbb USING INTEGER PRIMARY KEY (rowid=?)
+  `--USE TEMP B-TREE FOR ORDER BY
+}
+do_eqp_test where3-5.2 {
+   SELECT bbb.title AS tag_title 
+     FROM bbb JOIN aaa ON bbb.id = aaa.parent  
+    WHERE aaa.fk = 'constant'
+      AND LENGTH(bbb.title) > 0
+      AND bbb.parent = 4
+    ORDER BY bbb.title COLLATE NOCASE ASC;
+} {
+  QUERY PLAN
+  |--SEARCH aaa USING INDEX aaa_333 (fk=?)
+  |--SEARCH bbb USING INTEGER PRIMARY KEY (rowid=?)
+  `--USE TEMP B-TREE FOR ORDER BY
+}
+do_eqp_test where3-5.3 {
+   SELECT bbb.title AS tag_title 
+     FROM aaa AS bbb JOIN aaa ON bbb.id = aaa.parent  
+    WHERE aaa.fk = 'constant'
+      AND LENGTH(bbb.title) > 0
+      AND bbb.parent = 4
+    ORDER BY bbb.title COLLATE NOCASE ASC;
+} {
+  QUERY PLAN
+  |--SEARCH aaa USING INDEX aaa_333 (fk=?)
+  |--SEARCH bbb USING INTEGER PRIMARY KEY (rowid=?)
+  `--USE TEMP B-TREE FOR ORDER BY
+}
+
+# Name resolution with NATURAL JOIN and USING
+#
+do_test where3-6.setup {
+  db eval {
+    CREATE TABLE t6w(a, w);
+    INSERT INTO t6w VALUES(1, 'w-one');
+    INSERT INTO t6w VALUES(2, 'w-two');
+    INSERT INTO t6w VALUES(9, 'w-nine');
+    CREATE TABLE t6x(a, x);
+    INSERT INTO t6x VALUES(1, 'x-one');
+    INSERT INTO t6x VALUES(3, 'x-three');
+    INSERT INTO t6x VALUES(9, 'x-nine');
+    CREATE TABLE t6y(a, y);
+    INSERT INTO t6y VALUES(1, 'y-one');
+    INSERT INTO t6y VALUES(4, 'y-four');
+    INSERT INTO t6y VALUES(9, 'y-nine');
+    CREATE TABLE t6z(a, z);
+    INSERT INTO t6z VALUES(1, 'z-one');
+    INSERT INTO t6z VALUES(5, 'z-five');
+    INSERT INTO t6z VALUES(9, 'z-nine');
+  }
+} {}
+set cnt 0
+foreach predicate {
+   {}
+   {ORDER BY a}
+   {ORDER BY t6w.a}
+   {WHERE a>0}
+   {WHERE t6y.a>0}
+   {WHERE a>0 ORDER BY a}
+} {
+  incr cnt
+  do_test where3-6.$cnt.1 {
+    set sql "SELECT * FROM t6w NATURAL JOIN t6x NATURAL JOIN t6y"
+    append sql " NATURAL JOIN t6z "
+    append sql $::predicate
+    db eval $sql
+  } {1 w-one x-one y-one z-one 9 w-nine x-nine y-nine z-nine}
+  do_test where3-6.$cnt.2 {
+    set sql "SELECT * FROM t6w JOIN t6x USING(a) JOIN t6y USING(a)"
+    append sql " JOIN t6z USING(a) "
+    append sql $::predicate
+    db eval $sql
+  } {1 w-one x-one y-one z-one 9 w-nine x-nine y-nine z-nine}
+  do_test where3-6.$cnt.3 {
+    set sql "SELECT * FROM t6w NATURAL JOIN t6x JOIN t6y USING(a)"
+    append sql " JOIN t6z USING(a) "
+    append sql $::predicate
+    db eval $sql
+  } {1 w-one x-one y-one z-one 9 w-nine x-nine y-nine z-nine}
+  do_test where3-6.$cnt.4 {
+    set sql "SELECT * FROM t6w JOIN t6x USING(a) NATURAL JOIN t6y"
+    append sql " JOIN t6z USING(a) "
+    append sql $::predicate
+    db eval $sql
+  } {1 w-one x-one y-one z-one 9 w-nine x-nine y-nine z-nine}
+  do_test where3-6.$cnt.5 {
+    set sql "SELECT * FROM t6w JOIN t6x USING(a) JOIN t6y USING(a)"
+    append sql " NATURAL JOIN t6z "
+    append sql $::predicate
+    db eval $sql
+  } {1 w-one x-one y-one z-one 9 w-nine x-nine y-nine z-nine}
+  do_test where3-6.$cnt.6 {
+    set sql "SELECT * FROM t6w JOIN t6x USING(a) NATURAL JOIN t6y"
+    append sql " NATURAL JOIN t6z "
+    append sql $::predicate
+    db eval $sql
+  } {1 w-one x-one y-one z-one 9 w-nine x-nine y-nine z-nine}
+  do_test where3-6.$cnt.7 {
+    set sql "SELECT * FROM t6w NATURAL JOIN t6x JOIN t6y USING(a)"
+    append sql " NATURAL JOIN t6z "
+    append sql $::predicate
+    db eval $sql
+  } {1 w-one x-one y-one z-one 9 w-nine x-nine y-nine z-nine}
+  do_test where3-6.$cnt.8 {
+    set sql "SELECT * FROM t6w NATURAL JOIN t6x NATURAL JOIN t6y"
+    append sql " JOIN t6z USING(a) "
+    append sql $::predicate
+    db eval $sql
+  } {1 w-one x-one y-one z-one 9 w-nine x-nine y-nine z-nine}
+}
+
+do_execsql_test where3-7-setup {
+  CREATE TABLE t71(x1 INTEGER PRIMARY KEY, y1);
+  CREATE TABLE t72(x2 INTEGER PRIMARY KEY, y2);
+  CREATE TABLE t73(x3, y3);
+  CREATE TABLE t74(x4, y4);
+  INSERT INTO t71 VALUES(123,234);
+  INSERT INTO t72 VALUES(234,345);
+  INSERT INTO t73 VALUES(123,234);
+  INSERT INTO t74 VALUES(234,345);
+  INSERT INTO t74 VALUES(234,678);
+} {}
+foreach disabled_opt {none omit-noop-join all} {
+  optimization_control db all 1
+  optimization_control db $disabled_opt 0
+  do_execsql_test where3-7.$disabled_opt.1 {
+    SELECT x1 FROM t71 LEFT JOIN t72 ON x2=y1;
+  } {123}
+  do_execsql_test where3-7.$disabled_opt.2 {
+    SELECT x1 FROM t71 LEFT JOIN t72 ON x2=y1 WHERE y2 IS NULL;
+  } {}
+  do_execsql_test where3-7.$disabled_opt.3 {
+    SELECT x1 FROM t71 LEFT JOIN t72 ON x2=y1 WHERE y2 IS NOT NULL;
+  } {123}
+  do_execsql_test where3-7.$disabled_opt.4 {
+    SELECT x1 FROM t71 LEFT JOIN t72 ON x2=y1 AND y2 IS NULL;
+  } {123}
+  do_execsql_test where3-7.$disabled_opt.5 {
+    SELECT x1 FROM t71 LEFT JOIN t72 ON x2=y1 AND y2 IS NOT NULL;
+  } {123}
+  do_execsql_test where3-7.$disabled_opt.6 {
+    SELECT x3 FROM t73 LEFT JOIN t72 ON x2=y3;
+  } {123}
+  do_execsql_test where3-7.$disabled_opt.7 {
+    SELECT DISTINCT x3 FROM t73 LEFT JOIN t72 ON x2=y3;
+  } {123}
+  do_execsql_test where3-7.$disabled_opt.8 {
+    SELECT x3 FROM t73 LEFT JOIN t74 ON x4=y3;
+  } {123 123}
+  do_execsql_test where3-7.$disabled_opt.9 {
+    SELECT DISTINCT x3 FROM t73 LEFT JOIN t74 ON x4=y3;
+  } {123}
+}
+
+# 2023-12-23
+# https://sqlite.org/forum/forumpost/2568d1f6e6
+#
+# Index usage should be "x=? and y=?" - equality on both values.
+# Not: "x=? AND y>?" - inequality on "y"
+# 
+reset_db
+do_execsql_test where3-8.1 {
+  CREATE TABLE t1(a,b,c,d);  INSERT INTO t1 VALUES(1,2,3,4);
+  CREATE TABLE t2(x,y);      INSERT INTO t2 VALUES(3,4);
+  CREATE INDEX t2xy ON t2(x,y);
+  SELECT 1 FROM t1 JOIN t2 ON x=c AND y=d WHERE d>0;
+} 1
+do_eqp_test where3-8.2 {
+  SELECT 1 FROM t1 JOIN t2 ON x=c AND y=d WHERE d>0;
+} {
+  QUERY PLAN
+  |--SCAN t1
+  `--SEARCH t2 USING COVERING INDEX t2xy (x=? AND y=?)
+}
+
+
+
+finish_test
diff --git a/test/where4.test b/test/where4.test
new file mode 100644
index 0000000000000000000000000000000000000000..bafc84faef951208b35e6804bf73a9cc5839bbd3
--- /dev/null
+++ b/test/where4.test
@@ -0,0 +1,307 @@
+# 2006 October 27
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the use of indices in WHERE clauses.
+# This file was created when support for optimizing IS NULL phrases
+# was added.  And so the principle purpose of this file is to test
+# that IS NULL phrases are correctly optimized.  But you can never
+# have too many tests, so some other tests are thrown in as well.
+#
+# $Id: where4.test,v 1.6 2007/12/10 05:03:48 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix where4
+
+ifcapable !tclvar||!bloblit {
+  finish_test
+  return
+}
+
+# Build some test data
+#
+do_test where4-1.0 {
+  execsql {
+    CREATE TABLE t1(w, x, y);
+    CREATE INDEX i1wxy ON t1(w,x,y);
+    INSERT INTO t1 VALUES(1,2,3);
+    INSERT INTO t1 VALUES(1,NULL,3);
+    INSERT INTO t1 VALUES('a','b','c');
+    INSERT INTO t1 VALUES('a',NULL,'c');
+    INSERT INTO t1 VALUES(X'78',x'79',x'7a');
+    INSERT INTO t1 VALUES(X'78',NULL,X'7A');
+    INSERT INTO t1 VALUES(NULL,NULL,NULL);
+    SELECT count(*) FROM t1;
+  }
+} {7}
+
+# Do an SQL statement.  Append the search count to the end of the result.
+#
+proc count sql {
+  set ::sqlite_search_count 0
+  return [concat [execsql $sql] $::sqlite_search_count]
+}
+
+# Verify that queries use an index.  We are using the special variable
+# "sqlite_search_count" which tallys the number of executions of MoveTo
+# and Next operators in the VDBE.  By verifing that the search count is
+# small we can be assured that indices are being used properly.
+#
+do_test where4-1.1 {
+  count {SELECT rowid FROM t1 WHERE w IS NULL}
+} {7 2}
+do_test where4-1.1b {
+  unset -nocomplain null
+  count {SELECT rowid FROM t1 WHERE w IS $null}
+} {7 2}
+do_test where4-1.2 {
+  count {SELECT rowid FROM t1 WHERE +w IS NULL}
+} {7 6}
+do_test where4-1.3 {
+  count {SELECT rowid FROM t1 WHERE w=1 AND x IS NULL}
+} {2 2}
+do_test where4-1.4 {
+  count {SELECT rowid FROM t1 WHERE w=1 AND +x IS NULL}
+} {2 3}
+do_test where4-1.5 {
+  count {SELECT rowid FROM t1 WHERE w=1 AND x>0}
+} {1 2}
+do_test where4-1.6 {
+  count {SELECT rowid FROM t1 WHERE w=1 AND x<9}
+} {1 2}
+do_test where4-1.7 {
+  count {SELECT rowid FROM t1 WHERE w=1 AND x IS NULL AND y=3}
+} {2 2}
+do_test where4-1.8 {
+  count {SELECT rowid FROM t1 WHERE w=1 AND x IS NULL AND y>2}
+} {2 2}
+do_test where4-1.9 {
+  count {SELECT rowid FROM t1 WHERE w='a' AND x IS NULL AND y='c'}
+} {4 2}
+do_test where4-1.10 {
+  count {SELECT rowid FROM t1 WHERE w=x'78' AND x IS NULL}
+} {6 2}
+do_test where4-1.11 {
+  count {SELECT rowid FROM t1 WHERE w=x'78' AND x IS NULL AND y=123}
+} {0}
+do_test where4-1.12 {
+  count {SELECT rowid FROM t1 WHERE w=x'78' AND x IS NULL AND y=x'7A'}
+} {6 2}
+do_test where4-1.13 {
+  count {SELECT rowid FROM t1 WHERE w IS NULL AND x IS NULL}
+} {7 2}
+do_test where4-1.14 {
+  count {SELECT rowid FROM t1 WHERE w IS NULL AND x IS NULL AND y IS NULL}
+} {7 2}
+do_test where4-1.15 {
+  count {SELECT rowid FROM t1 WHERE w IS NULL AND x IS NULL AND y<0}
+} {1}
+do_test where4-1.16 {
+  count {SELECT rowid FROM t1 WHERE w IS NULL AND x IS NULL AND y>=0}
+} {1}
+
+do_test where4-2.1 {
+  execsql {SELECT rowid FROM t1 ORDER BY w, x, y}
+} {7 2 1 4 3 6 5}
+do_test where4-2.2 {
+  execsql {SELECT rowid FROM t1 ORDER BY w DESC, x, y}
+} {6 5 4 3 2 1 7}
+do_test where4-2.3 {
+  execsql {SELECT rowid FROM t1 ORDER BY w, x DESC, y}
+} {7 1 2 3 4 5 6}
+
+
+# Ticket #2177
+#
+# Suppose you have a left join where the right table of the left
+# join (the one that can be NULL) has an index on two columns.
+# The first indexed column is used in the ON clause of the join.
+# The second indexed column is used in the WHERE clause with an IS NULL
+# constraint.  It is not allowed to use the IS NULL optimization to
+# optimize the query because the second column might be NULL because
+# the right table did not match - something the index does not know
+# about.
+#
+do_test where4-3.1 {
+  execsql {
+    CREATE TABLE t2(a);
+    INSERT INTO t2 VALUES(1);
+    INSERT INTO t2 VALUES(2);
+    INSERT INTO t2 VALUES(3);
+    CREATE TABLE t3(x,y,UNIQUE("x",'y' ASC)); -- Goofy syntax allowed
+    INSERT INTO t3 VALUES(1,11);
+    INSERT INTO t3 VALUES(2,NULL);
+ 
+    SELECT * FROM t2 LEFT JOIN t3 ON a=x WHERE +y IS NULL;
+  }
+} {2 2 {} 3 {} {}}
+do_test where4-3.2 {
+  execsql {
+    SELECT * FROM t2 LEFT JOIN t3 ON a=x WHERE y IS NULL;
+  }
+} {2 2 {} 3 {} {}}
+do_test where4-3.3 {
+  execsql {
+    SELECT * FROM t2 LEFT JOIN t3 ON a=x WHERE NULL is y;
+  }
+} {2 2 {} 3 {} {}}
+do_test where4-3.4 {
+  unset -nocomplain null
+  execsql {
+    SELECT * FROM t2 LEFT JOIN t3 ON a=x WHERE y IS $null;
+  }
+} {2 2 {} 3 {} {}}
+
+# Ticket #2189.  Probably the same bug as #2177.
+#
+do_test where4-4.1 {
+  execsql {
+    CREATE TABLE test(col1 TEXT PRIMARY KEY);
+    INSERT INTO test(col1) values('a');
+    INSERT INTO test(col1) values('b');
+    INSERT INTO test(col1) values('c');
+    CREATE TABLE test2(col1 TEXT PRIMARY KEY);
+    INSERT INTO test2(col1) values('a');
+    INSERT INTO test2(col1) values('b');
+    INSERT INTO test2(col1) values('c');
+    SELECT * FROM test t1 LEFT OUTER JOIN test2 t2 ON t1.col1 = t2.col1
+      WHERE +t2.col1 IS NULL;
+  }
+} {}
+do_test where4-4.2 {
+  execsql {
+    SELECT * FROM test t1 LEFT OUTER JOIN test2 t2 ON t1.col1 = t2.col1
+      WHERE t2.col1 IS NULL;
+  }
+} {}
+do_test where4-4.3 {
+  execsql {
+    SELECT * FROM test t1 LEFT OUTER JOIN test2 t2 ON t1.col1 = t2.col1
+      WHERE +t1.col1 IS NULL;
+  }
+} {}
+do_test where4-4.4 {
+  execsql {
+    SELECT * FROM test t1 LEFT OUTER JOIN test2 t2 ON t1.col1 = t2.col1
+      WHERE t1.col1 IS NULL;
+  }
+} {}
+
+# Ticket #2273.  Problems with IN operators and NULLs.
+#
+ifcapable subquery {
+do_test where4-5.1 {
+  execsql {
+    -- Allow the 'x' syntax for backwards compatibility
+    CREATE TABLE t4(x,y,z,PRIMARY KEY('x' ASC, "y" ASC));
+  }
+  execsql {
+    SELECT *
+      FROM t2 LEFT JOIN t4 b1
+              LEFT JOIN t4 b2 ON b2.x=b1.x AND b2.y IN (b1.y);
+  }
+} {1 {} {} {} {} {} {} 2 {} {} {} {} {} {} 3 {} {} {} {} {} {}}
+do_test where4-5.2 {
+  execsql {
+    INSERT INTO t4 VALUES(1,1,11);
+    INSERT INTO t4 VALUES(1,2,12);
+    INSERT INTO t4 VALUES(1,3,13);
+    INSERT INTO t4 VALUES(2,2,22);
+    SELECT rowid FROM t4 WHERE x IN (1,9,2,5) AND y IN (1,3,NULL,2) AND z!=13;
+  }
+} {1 2 4}
+do_test where4-5.3 {
+  execsql {
+    SELECT rowid FROM t4 WHERE x IN (1,9,NULL,2) AND y IN (1,3,2) AND z!=13;
+  }
+} {1 2 4}
+do_test where4-6.1 {
+  execsql {
+    CREATE TABLE t5(a,b,c,d,e,f,UNIQUE(a,b,c,d,e,f));
+    INSERT INTO t5 VALUES(1,1,1,1,1,11111);
+    INSERT INTO t5 VALUES(2,2,2,2,2,22222);
+    INSERT INTO t5 VALUES(1,2,3,4,5,12345);
+    INSERT INTO t5 VALUES(2,3,4,5,6,23456);
+  }
+  execsql {
+    SELECT rowid FROM t5
+     WHERE a IN (1,9,2) AND b=2 AND c IN (1,2,3,4) AND d>0
+  }
+} {3 2}
+do_test where4-6.2 {
+  execsql {
+    SELECT rowid FROM t5
+     WHERE a IN (1,NULL,2) AND b=2 AND c IN (1,2,3,4) AND d>0
+  }
+} {3 2}
+do_test where4-7.1 {
+  execsql {
+    CREATE TABLE t6(y,z,PRIMARY KEY(y,z));
+  }
+  execsql {
+    SELECT * FROM t6 WHERE y=NULL AND z IN ('hello');
+  }
+} {}
+
+integrity_check {where4-99.0}
+
+do_test where4-7.1 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t8(a, b, c, d);
+    CREATE INDEX t8_i ON t8(a, b, c);
+    CREATE TABLE t7(i);
+
+    INSERT INTO t7 VALUES(1);
+    INSERT INTO t7 SELECT i*2 FROM t7;
+    INSERT INTO t7 SELECT i*2 FROM t7;
+    INSERT INTO t7 SELECT i*2 FROM t7;
+    INSERT INTO t7 SELECT i*2 FROM t7;
+    INSERT INTO t7 SELECT i*2 FROM t7;
+    INSERT INTO t7 SELECT i*2 FROM t7;
+
+    COMMIT;
+  }
+} {}
+
+# At one point the sub-select inside the aggregate sum() function in the
+# following query was leaking a couple of stack entries. This query 
+# runs the SELECT in a loop enough times that an assert() fails. Or rather,
+# did fail before the bug was fixed.
+#
+do_test where4-7.2 {
+  execsql {
+    SELECT sum((
+      SELECT d FROM t8 WHERE a = i AND b = i AND c < NULL
+    )) FROM t7;
+  }
+} {{}}
+
+}; #ifcapable subquery
+
+#-------------------------------------------------------------------------
+# Verify that "IS ?" with a NULL bound to the variable also functions
+# correctly.
+
+unset -nocomplain null
+
+do_execsql_test 8.1 {
+  CREATE TABLE u9(a UNIQUE, b);
+  INSERT INTO u9 VALUES(NULL, 1);
+  INSERT INTO u9 VALUES(NULL, 2);
+}
+do_execsql_test 8.2 { SELECT * FROM u9 WHERE a IS NULL  } {{} 1 {} 2}
+do_execsql_test 8.2 { SELECT * FROM u9 WHERE a IS $null } {{} 1 {} 2}
+
+
+
+
+finish_test
diff --git a/test/where5.test b/test/where5.test
new file mode 100644
index 0000000000000000000000000000000000000000..760224cc1351a0a6c754130a961913990d0c24d8
--- /dev/null
+++ b/test/where5.test
@@ -0,0 +1,288 @@
+# 2007 June 8
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing NULL comparisons in the WHERE clause.
+# See ticket #2404.
+#
+# $Id: where5.test,v 1.2 2007/06/08 08:43:10 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Build some test data
+#
+do_test where5-1.0 {
+  execsql {
+    CREATE TABLE t1(x TEXT);
+    CREATE TABLE t2(x INTEGER);
+    CREATE TABLE t3(x INTEGER PRIMARY KEY);
+    INSERT INTO t1 VALUES(-1);
+    INSERT INTO t1 VALUES(0);
+    INSERT INTO t1 VALUES(1);
+    INSERT INTO t2 SELECT * FROM t1;
+    INSERT INTO t3 SELECT * FROM t2;
+  }
+  execsql {
+    SELECT * FROM t1 WHERE x<0
+  }
+} {-1}
+do_test where5-1.1 {
+  execsql {
+    SELECT * FROM t1 WHERE x<=0
+  }
+} {-1 0}
+do_test where5-1.2 {
+  execsql {
+    SELECT * FROM t1 WHERE x=0
+  }
+} {0}
+do_test where5-1.3 {
+  execsql {
+    SELECT * FROM t1 WHERE x>=0
+  }
+} {0 1}
+do_test where5-1.4 {
+  execsql {
+    SELECT * FROM t1 WHERE x>0
+  }
+} {1}
+do_test where5-1.5 {
+  execsql {
+    SELECT * FROM t1 WHERE x<>0
+  }
+} {-1 1}
+do_test where5-1.6 {
+  execsql {
+    SELECT * FROM t1 WHERE x<NULL
+  }
+} {}
+do_test where5-1.7 {
+  execsql {
+    SELECT * FROM t1 WHERE x<=NULL
+  }
+} {}
+do_test where5-1.8 {
+  execsql {
+    SELECT * FROM t1 WHERE x=NULL
+  }
+} {}
+do_test where5-1.9 {
+  execsql {
+    SELECT * FROM t1 WHERE x>=NULL
+  }
+} {}
+do_test where5-1.10 {
+  execsql {
+    SELECT * FROM t1 WHERE x>NULL
+  }
+} {}
+do_test where5-1.11 {
+  execsql {
+    SELECT * FROM t1 WHERE x!=NULL
+  }
+} {}
+do_test where5-1.12 {
+  execsql {
+    SELECT * FROM t1 WHERE x IS NULL
+  }
+} {}
+do_test where5-1.13 {
+  execsql {
+    SELECT * FROM t1 WHERE x IS NOT NULL
+  }
+} {-1 0 1}
+
+
+do_test where5-2.0 {
+  execsql {
+    SELECT * FROM t2 WHERE x<0
+  }
+} {-1}
+do_test where5-2.1 {
+  execsql {
+    SELECT * FROM t2 WHERE x<=0
+  }
+} {-1 0}
+do_test where5-2.2 {
+  execsql {
+    SELECT * FROM t2 WHERE x=0
+  }
+} {0}
+do_test where5-2.3 {
+  execsql {
+    SELECT * FROM t2 WHERE x>=0
+  }
+} {0 1}
+do_test where5-2.4 {
+  execsql {
+    SELECT * FROM t2 WHERE x>0
+  }
+} {1}
+do_test where5-2.5 {
+  execsql {
+    SELECT * FROM t2 WHERE x<>0
+  }
+} {-1 1}
+do_test where5-2.6 {
+  execsql {
+    SELECT * FROM t2 WHERE x<NULL
+  }
+} {}
+do_test where5-2.7 {
+  execsql {
+    SELECT * FROM t2 WHERE x<=NULL
+  }
+} {}
+do_test where5-2.8 {
+  execsql {
+    SELECT * FROM t2 WHERE x=NULL
+  }
+} {}
+do_test where5-2.9 {
+  execsql {
+    SELECT * FROM t2 WHERE x>=NULL
+  }
+} {}
+do_test where5-2.10 {
+  execsql {
+    SELECT * FROM t2 WHERE x>NULL
+  }
+} {}
+do_test where5-2.11 {
+  execsql {
+    SELECT * FROM t2 WHERE x!=NULL
+  }
+} {}
+do_test where5-2.12 {
+  execsql {
+    SELECT * FROM t2 WHERE x IS NULL
+  }
+} {}
+do_test where5-2.13 {
+  execsql {
+    SELECT * FROM t2 WHERE x IS NOT NULL
+  }
+} {-1 0 1}
+
+
+do_test where5-3.0 {
+  execsql {
+    SELECT * FROM t3 WHERE x<0
+  }
+} {-1}
+do_test where5-3.1 {
+  execsql {
+    SELECT * FROM t3 WHERE x<=0
+  }
+} {-1 0}
+do_test where5-3.2 {
+  execsql {
+    SELECT * FROM t3 WHERE x=0
+  }
+} {0}
+do_test where5-3.3 {
+  execsql {
+    SELECT * FROM t3 WHERE x>=0
+  }
+} {0 1}
+do_test where5-3.4 {
+  execsql {
+    SELECT * FROM t3 WHERE x>0
+  }
+} {1}
+do_test where5-3.5 {
+  execsql {
+    SELECT * FROM t3 WHERE x<>0
+  }
+} {-1 1}
+do_test where5-3.6 {
+  execsql {
+    SELECT * FROM t3 WHERE x<NULL
+  }
+} {}
+do_test where5-3.7 {
+  execsql {
+    SELECT * FROM t3 WHERE x<=NULL
+  }
+} {}
+do_test where5-3.8 {
+  execsql {
+    SELECT * FROM t3 WHERE x=NULL
+  }
+} {}
+do_test where5-3.9 {
+  execsql {
+    SELECT * FROM t3 WHERE x>=NULL
+  }
+} {}
+do_test where5-3.10 {
+  execsql {
+    SELECT * FROM t3 WHERE x>NULL
+  }
+} {}
+do_test where5-3.11 {
+  execsql {
+    SELECT * FROM t3 WHERE x!=NULL
+  }
+} {}
+do_test where5-3.12 {
+  execsql {
+    SELECT * FROM t3 WHERE x IS NULL
+  }
+} {}
+do_test where5-3.13 {
+  execsql {
+    SELECT * FROM t3 WHERE x IS NOT NULL
+  }
+} {-1 0 1}
+
+do_test where5-4.0 {
+  execsql {
+    SELECT x<NULL FROM t3
+  }
+} {{} {} {}}
+do_test where5-4.1 {
+  execsql {
+    SELECT x<=NULL FROM t3
+  }
+} {{} {} {}}
+do_test where5-4.2 {
+  execsql {
+    SELECT x==NULL FROM t3
+  }
+} {{} {} {}}
+do_test where5-4.3 {
+  execsql {
+    SELECT x>NULL FROM t3
+  }
+} {{} {} {}}
+do_test where5-4.4 {
+  execsql {
+    SELECT x>=NULL FROM t3
+  }
+} {{} {} {}}
+do_test where5-4.5 {
+  execsql {
+    SELECT x!=NULL FROM t3
+  }
+} {{} {} {}}
+do_test where5-4.6 {
+  execsql {
+    SELECT x IS NULL FROM t3
+  }
+} {0 0 0}
+do_test where5-4.7 {
+  execsql {
+    SELECT x IS NOT NULL FROM t3
+  }
+} {1 1 1}
+
+finish_test
diff --git a/test/where6.test b/test/where6.test
new file mode 100644
index 0000000000000000000000000000000000000000..83e975b7dd6d1be9879166ff3fafb0d217b91e31
--- /dev/null
+++ b/test/where6.test
@@ -0,0 +1,154 @@
+# 2007 June 8
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing that terms in the ON clause of
+# a LEFT OUTER JOIN are not used with indices.  See ticket #3015.
+#
+# $Id: where6.test,v 1.2 2008/04/17 19:14:02 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Build some test data
+#
+do_test where6-1.1 {
+  execsql {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY,b,c);
+    INSERT INTO t1 VALUES(1,3,1);
+    INSERT INTO t1 VALUES(2,4,2);
+    CREATE TABLE t2(x INTEGER PRIMARY KEY);
+    INSERT INTO t2 VALUES(3);
+
+    SELECT * FROM t1 LEFT JOIN t2 ON b=x AND c=1;
+  }
+} {1 3 1 3 2 4 2 {}}
+do_test where6-1.2 {
+  execsql {
+    SELECT * FROM t1 LEFT JOIN t2 ON x=b AND c=1;
+  }
+} {1 3 1 3 2 4 2 {}}
+do_test where6-1.3 {
+  execsql {
+    SELECT * FROM t1 LEFT JOIN t2 ON x=b AND 1=c;
+  }
+} {1 3 1 3 2 4 2 {}}
+do_test where6-1.4 {
+  execsql {
+    SELECT * FROM t1 LEFT JOIN t2 ON b=x AND 1=c;
+  }
+} {1 3 1 3 2 4 2 {}}
+
+ifcapable explain {
+  do_test where6-1.5 {
+     explain_no_trace {SELECT * FROM t1 LEFT JOIN t2 ON x=b AND 1=c}
+  } [explain_no_trace {SELECT * FROM t1 LEFT JOIN t2 ON b=x AND c=1}]
+  do_test where6-1.6 {
+     explain_no_trace {SELECT * FROM t1 LEFT JOIN t2 ON x=b WHERE 1=c}
+  } [explain_no_trace {SELECT * FROM t1 LEFT JOIN t2 ON b=x WHERE c=1}]
+}
+
+do_test where6-1.11 {
+  execsql {
+    SELECT * FROM t1 LEFT JOIN t2 ON b=x WHERE c=1;
+  }
+} {1 3 1 3}
+do_test where6-1.12 {
+  execsql {
+    SELECT * FROM t1 LEFT JOIN t2 ON x=b WHERE c=1;
+  }
+} {1 3 1 3}
+do_test where6-1.13 {
+  execsql {
+    SELECT * FROM t1 LEFT JOIN t2 ON b=x WHERE 1=c;
+  }
+} {1 3 1 3}
+
+
+
+do_test where6-2.1 {
+  execsql {
+    CREATE INDEX i1 ON t1(c);
+
+    SELECT * FROM t1 LEFT JOIN t2 ON b=x AND c=1;
+  }
+} {1 3 1 3 2 4 2 {}}
+do_test where6-2.2 {
+  execsql {
+    SELECT * FROM t1 LEFT JOIN t2 ON x=b AND c=1;
+  }
+} {1 3 1 3 2 4 2 {}}
+do_test where6-2.3 {
+  execsql {
+    SELECT * FROM t1 LEFT JOIN t2 ON x=b AND 1=c;
+  }
+} {1 3 1 3 2 4 2 {}}
+do_test where6-2.4 {
+  execsql {
+    SELECT * FROM t1 LEFT JOIN t2 ON b=x AND 1=c;
+  }
+} {1 3 1 3 2 4 2 {}}
+
+ifcapable explain {
+  do_test where6-2.5 {
+     explain_no_trace {SELECT * FROM t1 LEFT JOIN t2 ON x=b AND 1=c}
+  } [explain_no_trace {SELECT * FROM t1 LEFT JOIN t2 ON b=x AND c=1}]
+  do_test where6-2.6 {
+     explain_no_trace {SELECT * FROM t1 LEFT JOIN t2 ON x=b WHERE 1=c}
+  } [explain_no_trace {SELECT * FROM t1 LEFT JOIN t2 ON b=x WHERE c=1}]
+}
+
+
+do_test where6-2.11 {
+  execsql {
+    SELECT * FROM t1 LEFT JOIN t2 ON b=x WHERE c=1;
+  }
+} {1 3 1 3}
+do_test where6-2.12 {
+  execsql {
+    SELECT * FROM t1 LEFT JOIN t2 ON x=b WHERE c=1;
+  }
+} {1 3 1 3}
+do_test where6-2.13 {
+  execsql {
+    SELECT * FROM t1 LEFT JOIN t2 ON x=b WHERE 1=c;
+  }
+} {1 3 1 3}
+do_test where6-2.14 {
+  execsql {
+    SELECT * FROM t1 LEFT JOIN t2 ON b=x WHERE 1=c;
+  }
+} {1 3 1 3}
+
+# Ticket [ebdbadade5b]:
+# If the ON close on a LEFT JOIN is of the form x=y where both x and y
+# are indexed columns on tables to left of the join, then do not use that 
+# term with indices to either table.
+#
+do_test where6-3.1 {
+  db eval {
+    CREATE TABLE t4(x UNIQUE);
+    INSERT INTO t4 VALUES('abc');
+    INSERT INTO t4 VALUES('def');
+    INSERT INTO t4 VALUES('ghi');
+    CREATE TABLE t5(a, b, c, PRIMARY KEY(a,b));
+    INSERT INTO t5 VALUES('abc','def',123);
+    INSERT INTO t5 VALUES('def','ghi',456);
+
+    SELECT t4a.x, t4b.x, t5.c, t6.v
+      FROM t4 AS t4a
+           INNER JOIN t4 AS t4b
+           LEFT JOIN t5 ON t5.a=t4a.x AND t5.b=t4b.x
+           LEFT JOIN (SELECT 1 AS v) AS t6 ON t4a.x=t4b.x
+     ORDER BY 1, 2, 3;
+  }
+} {abc abc {} 1 abc def 123 {} abc ghi {} {} def abc {} {} def def {} 1 def ghi 456 {} ghi abc {} {} ghi def {} {} ghi ghi {} 1}
+
+finish_test
diff --git a/test/where7.test b/test/where7.test
new file mode 100644
index 0000000000000000000000000000000000000000..681684b809ddf0855827800efdc99a7247fea6d7
--- /dev/null
+++ b/test/where7.test
@@ -0,0 +1,23403 @@
+# 2008 December 23
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the multi-index OR clause optimizer.
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !or_opt {
+  finish_test
+  return
+}
+
+# Evaluate SQL.  Return the result set followed by the
+# and the number of full-scan steps.
+#
+proc count_steps {sql} {
+  set r [db eval $sql]
+  lappend r scan [db status step] sort [db status sort]
+}
+
+proc count_steps_sort {sql} {
+  set r [lsort -integer [db eval $sql]]
+  return "$r scan [db status step] sort [db status sort]"
+}
+
+# Build some test data
+#
+do_test where7-1.1 {
+  execsql {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY,b,c,d);
+    INSERT INTO t1 VALUES(1,2,3,4);
+    INSERT INTO t1 VALUES(2,3,4,5);
+    INSERT INTO t1 VALUES(3,4,6,8);
+    INSERT INTO t1 VALUES(4,5,10,15);
+    INSERT INTO t1 VALUES(5,10,100,1000);
+    CREATE INDEX t1b ON t1(b);
+    CREATE INDEX t1c ON t1(c);
+    SELECT * FROM t1;
+  }
+} {1 2 3 4 2 3 4 5 3 4 6 8 4 5 10 15 5 10 100 1000}
+if {[permutation] != "no_optimization"} {
+  do_execsql_test where7-1.1.1 {
+    CREATE TABLE t(a);
+    CREATE INDEX ta ON t(a);
+    INSERT INTO t(a) VALUES(1),(2);
+    SELECT * FROM t ORDER BY a;
+    SELECT * FROM t WHERE a<2 OR a<3 ORDER BY a;
+    PRAGMA count_changes=ON;
+    DELETE FROM t WHERE a<2 OR a<3;
+    SELECT * FROM t;
+    PRAGMA count_changes=OFF;
+    DROP TABLE t;
+  } {1 2 1 2 2}
+} else {
+  do_execsql_test where7-1.1.1-noopt {
+    CREATE TABLE t(a);
+    CREATE INDEX ta ON t(a);
+    INSERT INTO t(a) VALUES(1),(2);
+    SELECT * FROM t ORDER BY a;
+    SELECT * FROM t WHERE a<2 OR a<3 ORDER BY a;
+    PRAGMA count_changes=ON;
+    DELETE FROM t WHERE a<2 OR a<3;
+    SELECT * FROM t;
+    PRAGMA count_changes=OFF;
+    DROP TABLE t;
+  } {1 2 1 2 3}
+}
+do_test where7-1.2 {
+  count_steps {
+    SELECT a FROM t1 WHERE b=3 OR c=6 ORDER BY a
+  }
+} {2 3 scan 0 sort 1}
+do_test where7-1.3 {
+  count_steps {
+    SELECT a FROM t1 WHERE b=3 OR +c=6 ORDER BY a
+  }
+} {2 3 scan 4 sort 0}
+do_test where7-1.4 {
+  count_steps {
+    SELECT a FROM t1 WHERE +b=3 OR c=6 ORDER BY 1
+  }
+} {2 3 scan 4 sort 0}
+do_test where7-1.5 {
+  count_steps {
+    SELECT a FROM t1 WHERE 3=b OR c=6 ORDER BY rowid
+  }
+} {2 3 scan 0 sort 1}
+do_test where7-1.6 {
+  count_steps {
+    SELECT a FROM t1 WHERE (3=b OR c=6) AND +a>0 ORDER BY a
+  }
+} {2 3 scan 0 sort 1}
+do_test where7-1.7 {
+  count_steps {
+    SELECT a FROM t1 WHERE (b=3 OR c>10)
+  }
+} {2 5 scan 0 sort 0}
+do_test where7-1.8 {
+  count_steps {
+    SELECT a FROM t1 WHERE (b=3 OR c>=10)
+  }
+} {2 4 5 scan 0 sort 0}
+do_test where7-1.9 {
+  count_steps {
+    SELECT a FROM t1 WHERE (b=3 OR c>=10 OR c=4)
+  }
+} {2 4 5 scan 0 sort 0}
+do_test where7-1.10 {
+  count_steps {
+    SELECT a FROM t1 WHERE (b=3 OR c>=10 OR c=4 OR b>10)
+  }
+} {2 4 5 scan 0 sort 0}
+do_test where7-1.11 {
+  count_steps {
+    SELECT a FROM t1 WHERE (d=5 AND b=3) OR c==100 ORDER BY a;
+  }
+} {2 5 scan 0 sort 1}
+do_test where7-1.12 {
+  count_steps {
+    SELECT a FROM t1 WHERE (b BETWEEN 2 AND 4) OR c=100 ORDER BY a
+  }
+} {1 2 3 5 scan 0 sort 1}
+do_test where7-1.13 {
+  count_steps {
+    SELECT a FROM t1 WHERE (b BETWEEN 0 AND 2) OR (c BETWEEN 9 AND 999)
+    ORDER BY +a DESC
+  }
+} {5 4 1 scan 0 sort 1}
+
+do_test where7-1.14 {
+  count_steps {
+    SELECT a FROM t1 WHERE (d=8 OR c=6 OR b=4) AND +a>0
+  }
+} {3 scan 4 sort 0}
+do_test where7-1.15 {
+  count_steps {
+    SELECT a FROM t1 WHERE +a>=0 AND (d=8 OR c=6 OR b=4)
+  }
+} {3 scan 4 sort 0}
+
+do_test where7-1.20 {
+  set sql "SELECT a FROM t1 WHERE a=11 OR b=11"
+  for {set i 12} {$i<400} {incr i} {
+    append sql " OR a=$i OR b=$i"
+  }
+  append sql " ORDER BY a"
+  count_steps $sql
+} {scan 0 sort 1}
+do_test where7-1.21 {
+  set sql "SELECT a FROM t1 WHERE b=11 OR c=11"
+  for {set i 12} {$i<400} {incr i} {
+    append sql " OR b=$i OR c=$i"
+  }
+  append sql " ORDER BY a"
+  count_steps $sql
+} {5 scan 0 sort 1}
+do_test where7-1.22 {
+  set sql "SELECT a FROM t1 WHERE (b=11 OR c=11"
+  for {set i 12} {$i<400} {incr i} {
+    append sql " OR b=$i OR c=$i"
+  }
+  append sql ") AND d>=0 AND d<9999 ORDER BY a"
+  count_steps $sql
+} {5 scan 0 sort 1}
+do_test where7-1.23 {
+  set sql "SELECT a FROM t1 WHERE (b=11 OR c=11"
+  for {set i 12} {$i<400} {incr i} {
+    append sql " OR (b=$i AND d!=0) OR (c=$i AND d IS NOT NULL)"
+  }
+  append sql ") AND d>=0 AND d<9999 ORDER BY a"
+  count_steps $sql
+} {5 scan 0 sort 1}
+
+do_test where7-1.31 {
+  set sql "SELECT a FROM t1 WHERE (a=11 AND b=11)"
+  for {set i 12} {$i<400} {incr i} {
+    append sql " OR (a=$i AND b=$i)"
+  }
+  append sql " ORDER BY a"
+  count_steps $sql
+} {scan 0 sort 1}
+do_test where7-1.32 {
+  set sql "SELECT a FROM t1 WHERE (b=11 AND c=11)"
+  for {set i 12} {$i<400} {incr i} {
+    append sql " OR (b=$i AND c=$i)"
+  }
+  append sql " ORDER BY a"
+  count_steps $sql
+} {scan 0 sort 1}
+
+
+do_test where7-2.1 {
+  db eval {
+    CREATE TABLE t2(a INTEGER PRIMARY KEY,b,c,d,e,f TEXT,g);
+    INSERT INTO t2 VALUES(1,11,1001,1.001,100.1,'bcdefghij','yxwvuts');
+    INSERT INTO t2 VALUES(2,22,1001,2.002,100.1,'cdefghijk','yxwvuts');
+    INSERT INTO t2 VALUES(3,33,1001,3.0029999999999997,100.1,'defghijkl','xwvutsr');
+    INSERT INTO t2 VALUES(4,44,2002,4.004,200.2,'efghijklm','xwvutsr');
+    INSERT INTO t2 VALUES(5,55,2002,5.004999999999999,200.2,'fghijklmn','xwvutsr');
+    INSERT INTO t2 VALUES(6,66,2002,6.005999999999999,200.2,'ghijklmno','xwvutsr');
+    INSERT INTO t2 VALUES(7,77,3003,7.007,300.29999999999995,'hijklmnop','xwvutsr');
+    INSERT INTO t2 VALUES(8,88,3003,8.008,300.29999999999995,'ijklmnopq','wvutsrq');
+    INSERT INTO t2 VALUES(9,99,3003,9.008999999999999,300.29999999999995,'jklmnopqr','wvutsrq');
+    INSERT INTO t2 VALUES(10,110,4004,10.009999999999998,400.4,'klmnopqrs','wvutsrq');
+    INSERT INTO t2 VALUES(11,121,4004,11.011,400.4,'lmnopqrst','wvutsrq');
+    INSERT INTO t2 VALUES(12,132,4004,12.011999999999999,400.4,'mnopqrstu','wvutsrq');
+    INSERT INTO t2 VALUES(13,143,5005,13.012999999999998,500.5,'nopqrstuv','vutsrqp');
+    INSERT INTO t2 VALUES(14,154,5005,14.014,500.5,'opqrstuvw','vutsrqp');
+    INSERT INTO t2 VALUES(15,165,5005,15.014999999999999,500.5,'pqrstuvwx','vutsrqp');
+    INSERT INTO t2 VALUES(16,176,6006,16.016,600.5999999999999,'qrstuvwxy','vutsrqp');
+    INSERT INTO t2 VALUES(17,187,6006,17.017,600.5999999999999,'rstuvwxyz','vutsrqp');
+    INSERT INTO t2 VALUES(18,198,6006,18.017999999999997,600.5999999999999,'stuvwxyza','utsrqpo');
+    INSERT INTO t2 VALUES(19,209,7007,19.019,700.6999999999999,'tuvwxyzab','utsrqpo');
+    INSERT INTO t2 VALUES(20,220,7007,20.019999999999996,700.6999999999999,'uvwxyzabc','utsrqpo');
+    INSERT INTO t2 VALUES(21,231,7007,21.020999999999997,700.6999999999999,'vwxyzabcd','utsrqpo');
+    INSERT INTO t2 VALUES(22,242,8008,22.022,800.8,'wxyzabcde','utsrqpo');
+    INSERT INTO t2 VALUES(23,253,8008,23.022999999999996,800.8,'xyzabcdef','tsrqpon');
+    INSERT INTO t2 VALUES(24,264,8008,24.023999999999997,800.8,'yzabcdefg','tsrqpon');
+    INSERT INTO t2 VALUES(25,275,9009,25.025,900.9,'zabcdefgh','tsrqpon');
+    INSERT INTO t2 VALUES(26,286,9009,26.025999999999996,900.9,'abcdefghi','tsrqpon');
+    INSERT INTO t2 VALUES(27,297,9009,27.026999999999997,900.9,'bcdefghij','tsrqpon');
+    INSERT INTO t2 VALUES(28,308,10010,28.028,1001.0,'cdefghijk','srqponm');
+    INSERT INTO t2 VALUES(29,319,10010,29.028999999999996,1001.0,'defghijkl','srqponm');
+    INSERT INTO t2 VALUES(30,330,10010,30.029999999999998,1001.0,'efghijklm','srqponm');
+    INSERT INTO t2 VALUES(31,341,11011,31.030999999999995,1101.1,'fghijklmn','srqponm');
+    INSERT INTO t2 VALUES(32,352,11011,32.032,1101.1,'ghijklmno','srqponm');
+    INSERT INTO t2 VALUES(33,363,11011,33.032999999999994,1101.1,'hijklmnop','rqponml');
+    INSERT INTO t2 VALUES(34,374,12012,34.034,1201.1999999999998,'ijklmnopq','rqponml');
+    INSERT INTO t2 VALUES(35,385,12012,35.035,1201.1999999999998,'jklmnopqr','rqponml');
+    INSERT INTO t2 VALUES(36,396,12012,36.035999999999994,1201.1999999999998,'klmnopqrs','rqponml');
+    INSERT INTO t2 VALUES(37,407,13013,37.037,1301.3,'lmnopqrst','rqponml');
+    INSERT INTO t2 VALUES(38,418,13013,38.038,1301.3,'mnopqrstu','qponmlk');
+    INSERT INTO t2 VALUES(39,429,13013,39.038999999999994,1301.3,'nopqrstuv','qponmlk');
+    INSERT INTO t2 VALUES(40,440,14014,40.03999999999999,1401.3999999999999,'opqrstuvw','qponmlk');
+    INSERT INTO t2 VALUES(41,451,14014,41.041,1401.3999999999999,'pqrstuvwx','qponmlk');
+    INSERT INTO t2 VALUES(42,462,14014,42.041999999999994,1401.3999999999999,'qrstuvwxy','qponmlk');
+    INSERT INTO t2 VALUES(43,473,15015,43.04299999999999,1501.5,'rstuvwxyz','ponmlkj');
+    INSERT INTO t2 VALUES(44,484,15015,44.044,1501.5,'stuvwxyza','ponmlkj');
+    INSERT INTO t2 VALUES(45,495,15015,45.044999999999995,1501.5,'tuvwxyzab','ponmlkj');
+    INSERT INTO t2 VALUES(46,506,16016,46.04599999999999,1601.6,'uvwxyzabc','ponmlkj');
+    INSERT INTO t2 VALUES(47,517,16016,47.047,1601.6,'vwxyzabcd','ponmlkj');
+    INSERT INTO t2 VALUES(48,528,16016,48.047999999999995,1601.6,'wxyzabcde','onmlkji');
+    INSERT INTO t2 VALUES(49,539,17017,49.04899999999999,1701.6999999999998,'xyzabcdef','onmlkji');
+    INSERT INTO t2 VALUES(50,550,17017,50.05,1701.6999999999998,'yzabcdefg','onmlkji');
+    INSERT INTO t2 VALUES(51,561,17017,51.050999999999995,1701.6999999999998,'zabcdefgh','onmlkji');
+    INSERT INTO t2 VALUES(52,572,18018,52.05199999999999,1801.8,'abcdefghi','onmlkji');
+    INSERT INTO t2 VALUES(53,583,18018,53.053,1801.8,'bcdefghij','nmlkjih');
+    INSERT INTO t2 VALUES(54,594,18018,54.053999999999995,1801.8,'cdefghijk','nmlkjih');
+    INSERT INTO t2 VALUES(55,605,19019,55.05499999999999,1901.8999999999999,'defghijkl','nmlkjih');
+    INSERT INTO t2 VALUES(56,616,19019,56.056,1901.8999999999999,'efghijklm','nmlkjih');
+    INSERT INTO t2 VALUES(57,627,19019,57.056999999999995,1901.8999999999999,'fghijklmn','nmlkjih');
+    INSERT INTO t2 VALUES(58,638,20020,58.05799999999999,2002.0,'ghijklmno','mlkjihg');
+    INSERT INTO t2 VALUES(59,649,20020,59.05899999999999,2002.0,'hijklmnop','mlkjihg');
+    INSERT INTO t2 VALUES(60,660,20020,60.059999999999995,2002.0,'ijklmnopq','mlkjihg');
+    INSERT INTO t2 VALUES(61,671,21021,61.06099999999999,2102.1,'jklmnopqr','mlkjihg');
+    INSERT INTO t2 VALUES(62,682,21021,62.06199999999999,2102.1,'klmnopqrs','mlkjihg');
+    INSERT INTO t2 VALUES(63,693,21021,63.062999999999995,2102.1,'lmnopqrst','lkjihgf');
+    INSERT INTO t2 VALUES(64,704,22022,64.064,2202.2,'mnopqrstu','lkjihgf');
+    INSERT INTO t2 VALUES(65,715,22022,65.065,2202.2,'nopqrstuv','lkjihgf');
+    INSERT INTO t2 VALUES(66,726,22022,66.06599999999999,2202.2,'opqrstuvw','lkjihgf');
+    INSERT INTO t2 VALUES(67,737,23023,67.067,2302.2999999999997,'pqrstuvwx','lkjihgf');
+    INSERT INTO t2 VALUES(68,748,23023,68.068,2302.2999999999997,'qrstuvwxy','kjihgfe');
+    INSERT INTO t2 VALUES(69,759,23023,69.06899999999999,2302.2999999999997,'rstuvwxyz','kjihgfe');
+    INSERT INTO t2 VALUES(70,770,24024,70.07,2402.3999999999996,'stuvwxyza','kjihgfe');
+    INSERT INTO t2 VALUES(71,781,24024,71.071,2402.3999999999996,'tuvwxyzab','kjihgfe');
+    INSERT INTO t2 VALUES(72,792,24024,72.07199999999999,2402.3999999999996,'uvwxyzabc','kjihgfe');
+    INSERT INTO t2 VALUES(73,803,25025,73.073,2502.5,'vwxyzabcd','jihgfed');
+    INSERT INTO t2 VALUES(74,814,25025,74.074,2502.5,'wxyzabcde','jihgfed');
+    INSERT INTO t2 VALUES(75,825,25025,75.07499999999999,2502.5,'xyzabcdef','jihgfed');
+    INSERT INTO t2 VALUES(76,836,26026,76.076,2602.6,'yzabcdefg','jihgfed');
+    INSERT INTO t2 VALUES(77,847,26026,77.077,2602.6,'zabcdefgh','jihgfed');
+    INSERT INTO t2 VALUES(78,858,26026,78.07799999999999,2602.6,'abcdefghi','ihgfedc');
+    INSERT INTO t2 VALUES(79,869,27027,79.079,2702.7,'bcdefghij','ihgfedc');
+    INSERT INTO t2 VALUES(80,880,27027,80.07999999999998,2702.7,'cdefghijk','ihgfedc');
+    INSERT INTO t2 VALUES(81,891,27027,81.08099999999999,2702.7,'defghijkl','ihgfedc');
+    INSERT INTO t2 VALUES(82,902,28028,82.082,2802.7999999999997,'efghijklm','ihgfedc');
+    INSERT INTO t2 VALUES(83,913,28028,83.08299999999998,2802.7999999999997,'fghijklmn','hgfedcb');
+    INSERT INTO t2 VALUES(84,924,28028,84.08399999999999,2802.7999999999997,'ghijklmno','hgfedcb');
+    INSERT INTO t2 VALUES(85,935,29029,85.085,2902.8999999999996,'hijklmnop','hgfedcb');
+    INSERT INTO t2 VALUES(86,946,29029,86.08599999999998,2902.8999999999996,'ijklmnopq','hgfedcb');
+    INSERT INTO t2 VALUES(87,957,29029,87.08699999999999,2902.8999999999996,'jklmnopqr','hgfedcb');
+    INSERT INTO t2 VALUES(88,968,30030,88.088,3003.0,'klmnopqrs','gfedcba');
+    INSERT INTO t2 VALUES(89,979,30030,89.08899999999998,3003.0,'lmnopqrst','gfedcba');
+    INSERT INTO t2 VALUES(90,990,30030,90.08999999999999,3003.0,'mnopqrstu','gfedcba');
+    INSERT INTO t2 VALUES(91,1001,31031,91.091,3103.1,'nopqrstuv','gfedcba');
+    INSERT INTO t2 VALUES(92,1012,31031,92.09199999999998,3103.1,'opqrstuvw','gfedcba');
+    INSERT INTO t2 VALUES(93,1023,31031,93.09299999999999,3103.1,'pqrstuvwx','fedcbaz');
+    INSERT INTO t2 VALUES(94,1034,32032,94.094,3203.2,'qrstuvwxy','fedcbaz');
+    INSERT INTO t2 VALUES(95,1045,32032,95.09499999999998,3203.2,'rstuvwxyz','fedcbaz');
+    INSERT INTO t2 VALUES(96,1056,32032,96.09599999999999,3203.2,'stuvwxyza','fedcbaz');
+    INSERT INTO t2 VALUES(97,1067,33033,97.097,3303.2999999999997,'tuvwxyzab','fedcbaz');
+    INSERT INTO t2 VALUES(98,1078,33033,98.09799999999998,3303.2999999999997,'uvwxyzabc','edcbazy');
+    INSERT INTO t2 VALUES(99,1089,33033,99.09899999999999,3303.2999999999997,'vwxyzabcd','edcbazy');
+    INSERT INTO t2 VALUES(100,1100,34034,100.1,3403.3999999999996,'wxyzabcde','edcbazy');
+    CREATE INDEX t2b ON t2(b);
+    CREATE INDEX t2c ON t2(c);
+    CREATE INDEX t2d ON t2(d);
+    CREATE INDEX t2e ON t2(e);
+    CREATE INDEX t2f ON t2(f);
+    CREATE INDEX t2g ON t2(g);
+    CREATE TABLE t3(a INTEGER PRIMARY KEY,b,c,d,e,f TEXT,g);
+    INSERT INTO t3 SELECT * FROM t2;
+    CREATE INDEX t3b ON t3(b,c);
+    CREATE INDEX t3c ON t3(c,e);
+    CREATE INDEX t3d ON t3(d,g);
+    CREATE INDEX t3e ON t3(e,f,g);
+    CREATE INDEX t3f ON t3(f,b,d,c);
+    CREATE INDEX t3g ON t3(g,f);
+  }
+} {}
+
+do_test where7-2.2.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=1070
+         OR (g='edcbazy' AND f GLOB 'wxyza*')
+         OR (d>=89.0 AND d<90.0 AND d NOT NULL)
+         OR ((a BETWEEN 18 AND 20) AND a!=19)
+         OR (g='qponmlk' AND f GLOB 'nopqr*')
+         OR (g='fedcbaz' AND f GLOB 'stuvw*')
+         OR (f GLOB '?hijk*' AND f GLOB 'ghij*')
+  }
+} {6 18 20 32 39 58 84 89 96 100 scan 0 sort 0}
+do_test where7-2.2.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=1070
+         OR (g='edcbazy' AND f GLOB 'wxyza*')
+         OR (d>=89.0 AND d<90.0 AND d NOT NULL)
+         OR ((a BETWEEN 18 AND 20) AND a!=19)
+         OR (g='qponmlk' AND f GLOB 'nopqr*')
+         OR (g='fedcbaz' AND f GLOB 'stuvw*')
+         OR (f GLOB '?hijk*' AND f GLOB 'ghij*')
+  }
+} {6 18 20 32 39 58 84 89 96 100 scan 0 sort 0}
+do_test where7-2.3.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=47.0 AND d<48.0 AND d NOT NULL)
+         OR ((a BETWEEN 33 AND 35) AND a!=34)
+         OR (g='edcbazy' AND f GLOB 'uvwxy*')
+         OR b=220
+         OR (d>=70.0 AND d<71.0 AND d NOT NULL)
+         OR ((a BETWEEN 67 AND 69) AND a!=68)
+         OR (g='qponmlk' AND f GLOB 'pqrst*')
+  }
+} {20 33 35 41 47 67 69 70 98 scan 0 sort 0}
+do_test where7-2.3.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=47.0 AND d<48.0 AND d NOT NULL)
+         OR ((a BETWEEN 33 AND 35) AND a!=34)
+         OR (g='edcbazy' AND f GLOB 'uvwxy*')
+         OR b=220
+         OR (d>=70.0 AND d<71.0 AND d NOT NULL)
+         OR ((a BETWEEN 67 AND 69) AND a!=68)
+         OR (g='qponmlk' AND f GLOB 'pqrst*')
+  }
+} {20 33 35 41 47 67 69 70 98 scan 0 sort 0}
+do_test where7-2.4.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=190
+         OR ((a BETWEEN 49 AND 51) AND a!=50)
+         OR (g='rqponml' AND f GLOB 'hijkl*')
+         OR b=407
+  }
+} {33 37 49 51 scan 0 sort 0}
+do_test where7-2.4.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=190
+         OR ((a BETWEEN 49 AND 51) AND a!=50)
+         OR (g='rqponml' AND f GLOB 'hijkl*')
+         OR b=407
+  }
+} {33 37 49 51 scan 0 sort 0}
+do_test where7-2.5.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (f GLOB '?opqr*' AND f GLOB 'nopq*')
+         OR b=795
+         OR b=1103
+         OR b=583
+  }
+} {13 39 53 65 91 scan 0 sort 0}
+do_test where7-2.5.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (f GLOB '?opqr*' AND f GLOB 'nopq*')
+         OR b=795
+         OR b=1103
+         OR b=583
+  }
+} {13 39 53 65 91 scan 0 sort 0}
+do_test where7-2.6.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=74
+         OR a=50
+         OR (g='hgfedcb' AND f GLOB 'hijkl*')
+         OR ((a BETWEEN 16 AND 18) AND a!=17)
+         OR c=21021
+         OR ((a BETWEEN 82 AND 84) AND a!=83)
+  }
+} {16 18 50 61 62 63 74 82 84 85 scan 0 sort 0}
+do_test where7-2.6.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=74
+         OR a=50
+         OR (g='hgfedcb' AND f GLOB 'hijkl*')
+         OR ((a BETWEEN 16 AND 18) AND a!=17)
+         OR c=21021
+         OR ((a BETWEEN 82 AND 84) AND a!=83)
+  }
+} {16 18 50 61 62 63 74 82 84 85 scan 0 sort 0}
+do_test where7-2.7.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 8 AND 10) AND a!=9)
+         OR (d>=94.0 AND d<95.0 AND d NOT NULL)
+         OR ((a BETWEEN 34 AND 36) AND a!=35)
+         OR c=14014
+         OR b=828
+  }
+} {8 10 34 36 40 41 42 94 scan 0 sort 0}
+do_test where7-2.7.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 8 AND 10) AND a!=9)
+         OR (d>=94.0 AND d<95.0 AND d NOT NULL)
+         OR ((a BETWEEN 34 AND 36) AND a!=35)
+         OR c=14014
+         OR b=828
+  }
+} {8 10 34 36 40 41 42 94 scan 0 sort 0}
+do_test where7-2.8.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE 1000000<b
+         OR b=308
+  }
+} {28 scan 0 sort 0}
+do_test where7-2.8.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE 1000000<b
+         OR b=308
+  }
+} {28 scan 0 sort 0}
+do_test where7-2.9.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=949
+         OR ((a BETWEEN 22 AND 24) AND a!=23)
+         OR a=63
+  }
+} {22 24 63 scan 0 sort 0}
+do_test where7-2.9.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=949
+         OR ((a BETWEEN 22 AND 24) AND a!=23)
+         OR a=63
+  }
+} {22 24 63 scan 0 sort 0}
+do_test where7-2.10.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 49 AND 51) AND a!=50)
+         OR b=396
+         OR ((a BETWEEN 68 AND 70) AND a!=69)
+  }
+} {36 49 51 68 70 scan 0 sort 0}
+do_test where7-2.10.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 49 AND 51) AND a!=50)
+         OR b=396
+         OR ((a BETWEEN 68 AND 70) AND a!=69)
+  }
+} {36 49 51 68 70 scan 0 sort 0}
+do_test where7-2.11.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=72.0 AND d<73.0 AND d NOT NULL)
+         OR (g='jihgfed' AND f GLOB 'wxyza*')
+         OR c=11011
+         OR c=20020
+         OR (d>=18.0 AND d<19.0 AND d NOT NULL)
+  }
+} {18 31 32 33 58 59 60 72 74 scan 0 sort 0}
+do_test where7-2.11.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=72.0 AND d<73.0 AND d NOT NULL)
+         OR (g='jihgfed' AND f GLOB 'wxyza*')
+         OR c=11011
+         OR c=20020
+         OR (d>=18.0 AND d<19.0 AND d NOT NULL)
+  }
+} {18 31 32 33 58 59 60 72 74 scan 0 sort 0}
+do_test where7-2.12.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=50.0 AND d<51.0 AND d NOT NULL)
+         OR (d>=83.0 AND d<84.0 AND d NOT NULL)
+         OR (g='vutsrqp' AND f GLOB 'rstuv*')
+         OR b=792
+         OR a=97
+         OR (d>=87.0 AND d<88.0 AND d NOT NULL)
+         OR (d>=81.0 AND d<82.0 AND d NOT NULL)
+         OR b=916
+         OR a=69
+         OR (d>=31.0 AND d<32.0 AND d NOT NULL)
+         OR c=6006
+  }
+} {16 17 18 31 50 69 72 81 83 87 97 scan 0 sort 0}
+do_test where7-2.12.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=50.0 AND d<51.0 AND d NOT NULL)
+         OR (d>=83.0 AND d<84.0 AND d NOT NULL)
+         OR (g='vutsrqp' AND f GLOB 'rstuv*')
+         OR b=792
+         OR a=97
+         OR (d>=87.0 AND d<88.0 AND d NOT NULL)
+         OR (d>=81.0 AND d<82.0 AND d NOT NULL)
+         OR b=916
+         OR a=69
+         OR (d>=31.0 AND d<32.0 AND d NOT NULL)
+         OR c=6006
+  }
+} {16 17 18 31 50 69 72 81 83 87 97 scan 0 sort 0}
+do_test where7-2.13.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 50 AND 52) AND a!=51)
+         OR c=9009
+         OR (g='utsrqpo' AND f GLOB 'vwxyz*')
+         OR b=539
+         OR b=297
+         OR (g='wvutsrq' AND f GLOB 'klmno*')
+         OR (g='vutsrqp' AND f GLOB 'pqrst*')
+         OR b=957
+         OR f='xyzabcdef'
+         OR b=619
+  }
+} {10 15 21 23 25 26 27 49 50 52 75 87 scan 0 sort 0}
+do_test where7-2.13.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 50 AND 52) AND a!=51)
+         OR c=9009
+         OR (g='utsrqpo' AND f GLOB 'vwxyz*')
+         OR b=539
+         OR b=297
+         OR (g='wvutsrq' AND f GLOB 'klmno*')
+         OR (g='vutsrqp' AND f GLOB 'pqrst*')
+         OR b=957
+         OR f='xyzabcdef'
+         OR b=619
+  }
+} {10 15 21 23 25 26 27 49 50 52 75 87 scan 0 sort 0}
+do_test where7-2.14.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 47 AND 49) AND a!=48)
+         OR (d>=48.0 AND d<49.0 AND d NOT NULL)
+  }
+} {47 48 49 scan 0 sort 0}
+do_test where7-2.14.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 47 AND 49) AND a!=48)
+         OR (d>=48.0 AND d<49.0 AND d NOT NULL)
+  }
+} {47 48 49 scan 0 sort 0}
+do_test where7-2.15.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=20
+         OR a=67
+         OR b=58
+         OR ((a BETWEEN 19 AND 21) AND a!=20)
+  }
+} {19 20 21 67 scan 0 sort 0}
+do_test where7-2.15.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=20
+         OR a=67
+         OR b=58
+         OR ((a BETWEEN 19 AND 21) AND a!=20)
+  }
+} {19 20 21 67 scan 0 sort 0}
+do_test where7-2.16.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=938
+         OR (d>=67.0 AND d<68.0 AND d NOT NULL)
+         OR (g='vutsrqp' AND f GLOB 'rstuv*')
+  }
+} {17 67 scan 0 sort 0}
+do_test where7-2.16.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=938
+         OR (d>=67.0 AND d<68.0 AND d NOT NULL)
+         OR (g='vutsrqp' AND f GLOB 'rstuv*')
+  }
+} {17 67 scan 0 sort 0}
+do_test where7-2.17.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=68.0 AND d<69.0 AND d NOT NULL)
+         OR f='zabcdefgh'
+         OR b=308
+         OR (d>=16.0 AND d<17.0 AND d NOT NULL)
+         OR (g='srqponm' AND f GLOB 'defgh*')
+         OR ((a BETWEEN 15 AND 17) AND a!=16)
+         OR b=443
+         OR ((a BETWEEN 12 AND 14) AND a!=13)
+         OR f='uvwxyzabc'
+         OR (f GLOB '?zabc*' AND f GLOB 'yzab*')
+  }
+} {12 14 15 16 17 20 24 25 28 29 46 50 51 68 72 76 77 98 scan 0 sort 0}
+do_test where7-2.17.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=68.0 AND d<69.0 AND d NOT NULL)
+         OR f='zabcdefgh'
+         OR b=308
+         OR (d>=16.0 AND d<17.0 AND d NOT NULL)
+         OR (g='srqponm' AND f GLOB 'defgh*')
+         OR ((a BETWEEN 15 AND 17) AND a!=16)
+         OR b=443
+         OR ((a BETWEEN 12 AND 14) AND a!=13)
+         OR f='uvwxyzabc'
+         OR (f GLOB '?zabc*' AND f GLOB 'yzab*')
+  }
+} {12 14 15 16 17 20 24 25 28 29 46 50 51 68 72 76 77 98 scan 0 sort 0}
+do_test where7-2.18.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=46.0 AND d<47.0 AND d NOT NULL)
+         OR b=762
+         OR (d>=56.0 AND d<57.0 AND d NOT NULL)
+         OR a=19
+  }
+} {19 46 56 scan 0 sort 0}
+do_test where7-2.18.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=46.0 AND d<47.0 AND d NOT NULL)
+         OR b=762
+         OR (d>=56.0 AND d<57.0 AND d NOT NULL)
+         OR a=19
+  }
+} {19 46 56 scan 0 sort 0}
+do_test where7-2.19.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=63.0 AND d<64.0 AND d NOT NULL)
+         OR a=46
+         OR (g='yxwvuts' AND f GLOB 'cdefg*')
+         OR a=73
+         OR c=20020
+         OR ((a BETWEEN 2 AND 4) AND a!=3)
+         OR b=267
+         OR ((a BETWEEN 68 AND 70) AND a!=69)
+         OR (g='utsrqpo' AND f GLOB 'uvwxy*')
+  }
+} {2 4 20 46 58 59 60 63 68 70 73 scan 0 sort 0}
+do_test where7-2.19.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=63.0 AND d<64.0 AND d NOT NULL)
+         OR a=46
+         OR (g='yxwvuts' AND f GLOB 'cdefg*')
+         OR a=73
+         OR c=20020
+         OR ((a BETWEEN 2 AND 4) AND a!=3)
+         OR b=267
+         OR ((a BETWEEN 68 AND 70) AND a!=69)
+         OR (g='utsrqpo' AND f GLOB 'uvwxy*')
+  }
+} {2 4 20 46 58 59 60 63 68 70 73 scan 0 sort 0}
+do_test where7-2.20.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 27 AND 29) AND a!=28)
+         OR (g='gfedcba' AND f GLOB 'nopqr*')
+  }
+} {27 29 91 scan 0 sort 0}
+do_test where7-2.20.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 27 AND 29) AND a!=28)
+         OR (g='gfedcba' AND f GLOB 'nopqr*')
+  }
+} {27 29 91 scan 0 sort 0}
+do_test where7-2.21.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=13013
+         OR (d>=55.0 AND d<56.0 AND d NOT NULL)
+         OR (d>=75.0 AND d<76.0 AND d NOT NULL)
+         OR ((a BETWEEN 87 AND 89) AND a!=88)
+         OR f='bcdefghij'
+         OR b=586
+         OR (g='edcbazy' AND f GLOB 'uvwxy*')
+         OR ((a BETWEEN 59 AND 61) AND a!=60)
+         OR (g='mlkjihg' AND f GLOB 'ghijk*')
+         OR (d>=6.0 AND d<7.0 AND d NOT NULL)
+         OR a=9
+  }
+} {1 6 9 27 37 38 39 53 55 58 59 61 75 79 87 89 98 scan 0 sort 0}
+do_test where7-2.21.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=13013
+         OR (d>=55.0 AND d<56.0 AND d NOT NULL)
+         OR (d>=75.0 AND d<76.0 AND d NOT NULL)
+         OR ((a BETWEEN 87 AND 89) AND a!=88)
+         OR f='bcdefghij'
+         OR b=586
+         OR (g='edcbazy' AND f GLOB 'uvwxy*')
+         OR ((a BETWEEN 59 AND 61) AND a!=60)
+         OR (g='mlkjihg' AND f GLOB 'ghijk*')
+         OR (d>=6.0 AND d<7.0 AND d NOT NULL)
+         OR a=9
+  }
+} {1 6 9 27 37 38 39 53 55 58 59 61 75 79 87 89 98 scan 0 sort 0}
+do_test where7-2.22.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=399
+         OR c=28028
+         OR (d>=82.0 AND d<83.0 AND d NOT NULL)
+         OR (g='qponmlk' AND f GLOB 'qrstu*')
+         OR (d>=98.0 AND d<99.0 AND d NOT NULL)
+  }
+} {42 82 83 84 98 scan 0 sort 0}
+do_test where7-2.22.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=399
+         OR c=28028
+         OR (d>=82.0 AND d<83.0 AND d NOT NULL)
+         OR (g='qponmlk' AND f GLOB 'qrstu*')
+         OR (d>=98.0 AND d<99.0 AND d NOT NULL)
+  }
+} {42 82 83 84 98 scan 0 sort 0}
+do_test where7-2.23.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='fedcbaz' AND f GLOB 'rstuv*')
+         OR ((a BETWEEN 96 AND 98) AND a!=97)
+         OR c=14014
+         OR c=33033
+         OR a=89
+         OR b=770
+         OR (g='utsrqpo' AND f GLOB 'tuvwx*')
+         OR a=35
+         OR (f GLOB '?fghi*' AND f GLOB 'efgh*')
+         OR b=253
+         OR c=14014
+  }
+} {4 19 23 30 35 40 41 42 56 70 82 89 95 96 97 98 99 scan 0 sort 0}
+do_test where7-2.23.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='fedcbaz' AND f GLOB 'rstuv*')
+         OR ((a BETWEEN 96 AND 98) AND a!=97)
+         OR c=14014
+         OR c=33033
+         OR a=89
+         OR b=770
+         OR (g='utsrqpo' AND f GLOB 'tuvwx*')
+         OR a=35
+         OR (f GLOB '?fghi*' AND f GLOB 'efgh*')
+         OR b=253
+         OR c=14014
+  }
+} {4 19 23 30 35 40 41 42 56 70 82 89 95 96 97 98 99 scan 0 sort 0}
+do_test where7-2.24.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='utsrqpo' AND f GLOB 'vwxyz*')
+         OR ((a BETWEEN 32 AND 34) AND a!=33)
+         OR b=330
+         OR (g='xwvutsr' AND f GLOB 'ghijk*')
+         OR a=16
+  }
+} {6 16 21 30 32 34 scan 0 sort 0}
+do_test where7-2.24.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='utsrqpo' AND f GLOB 'vwxyz*')
+         OR ((a BETWEEN 32 AND 34) AND a!=33)
+         OR b=330
+         OR (g='xwvutsr' AND f GLOB 'ghijk*')
+         OR a=16
+  }
+} {6 16 21 30 32 34 scan 0 sort 0}
+do_test where7-2.25.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=5005
+         OR (d>=2.0 AND d<3.0 AND d NOT NULL)
+         OR ((a BETWEEN 36 AND 38) AND a!=37)
+         OR (g='ponmlkj' AND f GLOB 'vwxyz*')
+  }
+} {2 13 14 15 36 38 47 scan 0 sort 0}
+do_test where7-2.25.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=5005
+         OR (d>=2.0 AND d<3.0 AND d NOT NULL)
+         OR ((a BETWEEN 36 AND 38) AND a!=37)
+         OR (g='ponmlkj' AND f GLOB 'vwxyz*')
+  }
+} {2 13 14 15 36 38 47 scan 0 sort 0}
+do_test where7-2.26.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=30.0 AND d<31.0 AND d NOT NULL)
+         OR (g='mlkjihg' AND f GLOB 'ghijk*')
+         OR ((a BETWEEN 64 AND 66) AND a!=65)
+         OR (g='kjihgfe' AND f GLOB 'qrstu*')
+         OR a=33
+  }
+} {30 33 58 64 66 68 scan 0 sort 0}
+do_test where7-2.26.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=30.0 AND d<31.0 AND d NOT NULL)
+         OR (g='mlkjihg' AND f GLOB 'ghijk*')
+         OR ((a BETWEEN 64 AND 66) AND a!=65)
+         OR (g='kjihgfe' AND f GLOB 'qrstu*')
+         OR a=33
+  }
+} {30 33 58 64 66 68 scan 0 sort 0}
+do_test where7-2.27.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=1026
+         OR b=410
+  }
+} { scan 0 sort 0}
+do_test where7-2.27.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=1026
+         OR b=410
+  }
+} { scan 0 sort 0}
+do_test where7-2.28.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=18018
+         OR a=94
+         OR (f GLOB '?qrst*' AND f GLOB 'pqrs*')
+         OR (g='tsrqpon' AND f GLOB 'abcde*')
+         OR b=1012
+         OR a=3
+         OR d>1e10
+         OR b=905
+         OR b=1089
+  }
+} {3 15 26 41 52 53 54 67 92 93 94 99 scan 0 sort 0}
+do_test where7-2.28.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=18018
+         OR a=94
+         OR (f GLOB '?qrst*' AND f GLOB 'pqrs*')
+         OR (g='tsrqpon' AND f GLOB 'abcde*')
+         OR b=1012
+         OR a=3
+         OR d>1e10
+         OR b=905
+         OR b=1089
+  }
+} {3 15 26 41 52 53 54 67 92 93 94 99 scan 0 sort 0}
+do_test where7-2.29.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=100
+         OR c=11011
+         OR b=297
+         OR a=63
+         OR (g='hgfedcb' AND f GLOB 'ghijk*')
+         OR a=76
+         OR b=1026
+         OR a=26
+         OR (f GLOB '?zabc*' AND f GLOB 'yzab*')
+         OR c=30030
+  }
+} {24 26 27 31 32 33 50 63 76 84 88 89 90 100 scan 0 sort 0}
+do_test where7-2.29.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=100
+         OR c=11011
+         OR b=297
+         OR a=63
+         OR (g='hgfedcb' AND f GLOB 'ghijk*')
+         OR a=76
+         OR b=1026
+         OR a=26
+         OR (f GLOB '?zabc*' AND f GLOB 'yzab*')
+         OR c=30030
+  }
+} {24 26 27 31 32 33 50 63 76 84 88 89 90 100 scan 0 sort 0}
+do_test where7-2.30.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=561
+         OR b=1070
+         OR a=59
+         OR b=715
+         OR (f GLOB '?yzab*' AND f GLOB 'xyza*')
+  }
+} {23 49 51 59 65 75 scan 0 sort 0}
+do_test where7-2.30.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=561
+         OR b=1070
+         OR a=59
+         OR b=715
+         OR (f GLOB '?yzab*' AND f GLOB 'xyza*')
+  }
+} {23 49 51 59 65 75 scan 0 sort 0}
+do_test where7-2.31.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='fedcbaz' AND f GLOB 'rstuv*')
+         OR b=1056
+         OR b=1012
+         OR ((a BETWEEN 57 AND 59) AND a!=58)
+         OR ((a BETWEEN 67 AND 69) AND a!=68)
+         OR (d>=19.0 AND d<20.0 AND d NOT NULL)
+         OR (f GLOB '?bcde*' AND f GLOB 'abcd*')
+  }
+} {19 26 52 57 59 67 69 78 92 95 96 scan 0 sort 0}
+do_test where7-2.31.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='fedcbaz' AND f GLOB 'rstuv*')
+         OR b=1056
+         OR b=1012
+         OR ((a BETWEEN 57 AND 59) AND a!=58)
+         OR ((a BETWEEN 67 AND 69) AND a!=68)
+         OR (d>=19.0 AND d<20.0 AND d NOT NULL)
+         OR (f GLOB '?bcde*' AND f GLOB 'abcd*')
+  }
+} {19 26 52 57 59 67 69 78 92 95 96 scan 0 sort 0}
+do_test where7-2.32.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f='rstuvwxyz'
+         OR (g='jihgfed' AND f GLOB 'wxyza*')
+         OR ((a BETWEEN 90 AND 92) AND a!=91)
+         OR (d>=98.0 AND d<99.0 AND d NOT NULL)
+  }
+} {17 43 69 74 90 92 95 98 scan 0 sort 0}
+do_test where7-2.32.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f='rstuvwxyz'
+         OR (g='jihgfed' AND f GLOB 'wxyza*')
+         OR ((a BETWEEN 90 AND 92) AND a!=91)
+         OR (d>=98.0 AND d<99.0 AND d NOT NULL)
+  }
+} {17 43 69 74 90 92 95 98 scan 0 sort 0}
+do_test where7-2.33.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (f GLOB '?stuv*' AND f GLOB 'rstu*')
+         OR c=12012
+         OR a=18
+         OR (g='jihgfed' AND f GLOB 'yzabc*')
+         OR (f GLOB '?bcde*' AND f GLOB 'abcd*')
+         OR (f GLOB '?klmn*' AND f GLOB 'jklm*')
+         OR (f GLOB '?qrst*' AND f GLOB 'pqrs*')
+  }
+} {9 15 17 18 26 34 35 36 41 43 52 61 67 69 76 78 87 93 95 scan 0 sort 0}
+do_test where7-2.33.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (f GLOB '?stuv*' AND f GLOB 'rstu*')
+         OR c=12012
+         OR a=18
+         OR (g='jihgfed' AND f GLOB 'yzabc*')
+         OR (f GLOB '?bcde*' AND f GLOB 'abcd*')
+         OR (f GLOB '?klmn*' AND f GLOB 'jklm*')
+         OR (f GLOB '?qrst*' AND f GLOB 'pqrs*')
+  }
+} {9 15 17 18 26 34 35 36 41 43 52 61 67 69 76 78 87 93 95 scan 0 sort 0}
+do_test where7-2.34.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=77
+         OR (d>=58.0 AND d<59.0 AND d NOT NULL)
+  }
+} {58 77 scan 0 sort 0}
+do_test where7-2.34.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=77
+         OR (d>=58.0 AND d<59.0 AND d NOT NULL)
+  }
+} {58 77 scan 0 sort 0}
+do_test where7-2.35.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=498
+         OR (d>=27.0 AND d<28.0 AND d NOT NULL)
+         OR (d>=88.0 AND d<89.0 AND d NOT NULL)
+         OR ((a BETWEEN 67 AND 69) AND a!=68)
+         OR ((a BETWEEN 67 AND 69) AND a!=68)
+         OR c=33033
+         OR b=11
+         OR (g='wvutsrq' AND f GLOB 'lmnop*')
+         OR ((a BETWEEN 7 AND 9) AND a!=8)
+  }
+} {1 7 9 11 27 67 69 88 97 98 99 scan 0 sort 0}
+do_test where7-2.35.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=498
+         OR (d>=27.0 AND d<28.0 AND d NOT NULL)
+         OR (d>=88.0 AND d<89.0 AND d NOT NULL)
+         OR ((a BETWEEN 67 AND 69) AND a!=68)
+         OR ((a BETWEEN 67 AND 69) AND a!=68)
+         OR c=33033
+         OR b=11
+         OR (g='wvutsrq' AND f GLOB 'lmnop*')
+         OR ((a BETWEEN 7 AND 9) AND a!=8)
+  }
+} {1 7 9 11 27 67 69 88 97 98 99 scan 0 sort 0}
+do_test where7-2.36.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=6.0 AND d<7.0 AND d NOT NULL)
+         OR ((a BETWEEN 58 AND 60) AND a!=59)
+  }
+} {6 58 60 scan 0 sort 0}
+do_test where7-2.36.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=6.0 AND d<7.0 AND d NOT NULL)
+         OR ((a BETWEEN 58 AND 60) AND a!=59)
+  }
+} {6 58 60 scan 0 sort 0}
+do_test where7-2.37.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=1059
+         OR (d>=43.0 AND d<44.0 AND d NOT NULL)
+         OR c=4004
+         OR b=806
+  }
+} {10 11 12 43 scan 0 sort 0}
+do_test where7-2.37.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=1059
+         OR (d>=43.0 AND d<44.0 AND d NOT NULL)
+         OR c=4004
+         OR b=806
+  }
+} {10 11 12 43 scan 0 sort 0}
+do_test where7-2.38.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=165
+         OR b=201
+         OR (g='edcbazy' AND f GLOB 'vwxyz*')
+         OR a=32
+  }
+} {15 32 99 scan 0 sort 0}
+do_test where7-2.38.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=165
+         OR b=201
+         OR (g='edcbazy' AND f GLOB 'vwxyz*')
+         OR a=32
+  }
+} {15 32 99 scan 0 sort 0}
+do_test where7-2.39.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='kjihgfe' AND f GLOB 'rstuv*')
+         OR (f GLOB '?xyza*' AND f GLOB 'wxyz*')
+  }
+} {22 48 69 74 100 scan 0 sort 0}
+do_test where7-2.39.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='kjihgfe' AND f GLOB 'rstuv*')
+         OR (f GLOB '?xyza*' AND f GLOB 'wxyz*')
+  }
+} {22 48 69 74 100 scan 0 sort 0}
+do_test where7-2.40.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=352
+         OR b=278
+         OR ((a BETWEEN 90 AND 92) AND a!=91)
+         OR ((a BETWEEN 28 AND 30) AND a!=29)
+         OR b=660
+         OR a=18
+         OR a=34
+         OR b=132
+         OR (g='gfedcba' AND f GLOB 'lmnop*')
+         OR (f GLOB '?defg*' AND f GLOB 'cdef*')
+         OR c=18018
+  }
+} {2 12 18 28 30 32 34 52 53 54 60 80 89 90 92 scan 0 sort 0}
+do_test where7-2.40.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=352
+         OR b=278
+         OR ((a BETWEEN 90 AND 92) AND a!=91)
+         OR ((a BETWEEN 28 AND 30) AND a!=29)
+         OR b=660
+         OR a=18
+         OR a=34
+         OR b=132
+         OR (g='gfedcba' AND f GLOB 'lmnop*')
+         OR (f GLOB '?defg*' AND f GLOB 'cdef*')
+         OR c=18018
+  }
+} {2 12 18 28 30 32 34 52 53 54 60 80 89 90 92 scan 0 sort 0}
+do_test where7-2.41.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=73.0 AND d<74.0 AND d NOT NULL)
+         OR ((a BETWEEN 5 AND 7) AND a!=6)
+  }
+} {5 7 73 scan 0 sort 0}
+do_test where7-2.41.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=73.0 AND d<74.0 AND d NOT NULL)
+         OR ((a BETWEEN 5 AND 7) AND a!=6)
+  }
+} {5 7 73 scan 0 sort 0}
+do_test where7-2.42.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (f GLOB '?efgh*' AND f GLOB 'defg*')
+         OR (d>=14.0 AND d<15.0 AND d NOT NULL)
+         OR (g='hgfedcb' AND f GLOB 'fghij*')
+         OR b=297
+         OR b=113
+         OR b=176
+         OR (g='utsrqpo' AND f GLOB 'vwxyz*')
+         OR (d>=75.0 AND d<76.0 AND d NOT NULL)
+         OR a=67
+         OR c=26026
+  }
+} {3 14 16 21 27 29 55 67 75 76 77 78 81 83 scan 0 sort 0}
+do_test where7-2.42.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (f GLOB '?efgh*' AND f GLOB 'defg*')
+         OR (d>=14.0 AND d<15.0 AND d NOT NULL)
+         OR (g='hgfedcb' AND f GLOB 'fghij*')
+         OR b=297
+         OR b=113
+         OR b=176
+         OR (g='utsrqpo' AND f GLOB 'vwxyz*')
+         OR (d>=75.0 AND d<76.0 AND d NOT NULL)
+         OR a=67
+         OR c=26026
+  }
+} {3 14 16 21 27 29 55 67 75 76 77 78 81 83 scan 0 sort 0}
+do_test where7-2.43.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=78.0 AND d<79.0 AND d NOT NULL)
+         OR ((a BETWEEN 4 AND 6) AND a!=5)
+         OR a=83
+         OR b=44
+         OR b=1023
+         OR ((a BETWEEN 11 AND 13) AND a!=12)
+         OR b=1023
+         OR f='ijklmnopq'
+  }
+} {4 6 8 11 13 34 60 78 83 86 93 scan 0 sort 0}
+do_test where7-2.43.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=78.0 AND d<79.0 AND d NOT NULL)
+         OR ((a BETWEEN 4 AND 6) AND a!=5)
+         OR a=83
+         OR b=44
+         OR b=1023
+         OR ((a BETWEEN 11 AND 13) AND a!=12)
+         OR b=1023
+         OR f='ijklmnopq'
+  }
+} {4 6 8 11 13 34 60 78 83 86 93 scan 0 sort 0}
+do_test where7-2.44.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=42.0 AND d<43.0 AND d NOT NULL)
+         OR b=935
+         OR ((a BETWEEN 32 AND 34) AND a!=33)
+         OR b=487
+         OR b=619
+         OR (g='qponmlk' AND f GLOB 'nopqr*')
+         OR (g='vutsrqp' AND f GLOB 'rstuv*')
+  }
+} {17 32 34 39 42 85 scan 0 sort 0}
+do_test where7-2.44.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=42.0 AND d<43.0 AND d NOT NULL)
+         OR b=935
+         OR ((a BETWEEN 32 AND 34) AND a!=33)
+         OR b=487
+         OR b=619
+         OR (g='qponmlk' AND f GLOB 'nopqr*')
+         OR (g='vutsrqp' AND f GLOB 'rstuv*')
+  }
+} {17 32 34 39 42 85 scan 0 sort 0}
+do_test where7-2.45.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=68.0 AND d<69.0 AND d NOT NULL)
+         OR (d>=94.0 AND d<95.0 AND d NOT NULL)
+         OR b=938
+         OR b=641
+         OR c=17017
+         OR a=82
+         OR (d>=65.0 AND d<66.0 AND d NOT NULL)
+         OR (g='rqponml' AND f GLOB 'lmnop*')
+         OR ((a BETWEEN 56 AND 58) AND a!=57)
+         OR (d>=39.0 AND d<40.0 AND d NOT NULL)
+  }
+} {37 39 49 50 51 56 58 65 68 82 94 scan 0 sort 0}
+do_test where7-2.45.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=68.0 AND d<69.0 AND d NOT NULL)
+         OR (d>=94.0 AND d<95.0 AND d NOT NULL)
+         OR b=938
+         OR b=641
+         OR c=17017
+         OR a=82
+         OR (d>=65.0 AND d<66.0 AND d NOT NULL)
+         OR (g='rqponml' AND f GLOB 'lmnop*')
+         OR ((a BETWEEN 56 AND 58) AND a!=57)
+         OR (d>=39.0 AND d<40.0 AND d NOT NULL)
+  }
+} {37 39 49 50 51 56 58 65 68 82 94 scan 0 sort 0}
+do_test where7-2.46.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='ihgfedc' AND f GLOB 'bcdef*')
+         OR c=22022
+  }
+} {64 65 66 79 scan 0 sort 0}
+do_test where7-2.46.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='ihgfedc' AND f GLOB 'bcdef*')
+         OR c=22022
+  }
+} {64 65 66 79 scan 0 sort 0}
+do_test where7-2.47.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=7007
+         OR b=91
+         OR b=212
+         OR (g='lkjihgf' AND f GLOB 'nopqr*')
+         OR c=28028
+         OR (d>=83.0 AND d<84.0 AND d NOT NULL)
+  }
+} {19 20 21 65 82 83 84 scan 0 sort 0}
+do_test where7-2.47.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=7007
+         OR b=91
+         OR b=212
+         OR (g='lkjihgf' AND f GLOB 'nopqr*')
+         OR c=28028
+         OR (d>=83.0 AND d<84.0 AND d NOT NULL)
+  }
+} {19 20 21 65 82 83 84 scan 0 sort 0}
+do_test where7-2.48.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=12.0 AND d<13.0 AND d NOT NULL)
+         OR a=51
+         OR ((a BETWEEN 28 AND 30) AND a!=29)
+  }
+} {12 28 30 51 scan 0 sort 0}
+do_test where7-2.48.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=12.0 AND d<13.0 AND d NOT NULL)
+         OR a=51
+         OR ((a BETWEEN 28 AND 30) AND a!=29)
+  }
+} {12 28 30 51 scan 0 sort 0}
+do_test where7-2.49.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='wvutsrq' AND f GLOB 'mnopq*')
+         OR (g='wvutsrq' AND f GLOB 'jklmn*')
+         OR (g='tsrqpon' AND f GLOB 'xyzab*')
+         OR ((a BETWEEN 0 AND 2) AND a!=1)
+         OR c=4004
+         OR b=322
+         OR c=13013
+         OR a=6
+  }
+} {2 6 9 10 11 12 23 37 38 39 scan 0 sort 0}
+do_test where7-2.49.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='wvutsrq' AND f GLOB 'mnopq*')
+         OR (g='wvutsrq' AND f GLOB 'jklmn*')
+         OR (g='tsrqpon' AND f GLOB 'xyzab*')
+         OR ((a BETWEEN 0 AND 2) AND a!=1)
+         OR c=4004
+         OR b=322
+         OR c=13013
+         OR a=6
+  }
+} {2 6 9 10 11 12 23 37 38 39 scan 0 sort 0}
+do_test where7-2.50.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=297
+         OR b=143
+         OR a=46
+         OR b=660
+         OR (d>=41.0 AND d<42.0 AND d NOT NULL)
+         OR (f GLOB '?yzab*' AND f GLOB 'xyza*')
+         OR (g='vutsrqp' AND f GLOB 'rstuv*')
+         OR b=355
+         OR a=93
+         OR b=297
+  }
+} {13 17 23 27 41 46 49 60 75 93 scan 0 sort 0}
+do_test where7-2.50.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=297
+         OR b=143
+         OR a=46
+         OR b=660
+         OR (d>=41.0 AND d<42.0 AND d NOT NULL)
+         OR (f GLOB '?yzab*' AND f GLOB 'xyza*')
+         OR (g='vutsrqp' AND f GLOB 'rstuv*')
+         OR b=355
+         OR a=93
+         OR b=297
+  }
+} {13 17 23 27 41 46 49 60 75 93 scan 0 sort 0}
+do_test where7-2.51.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=190
+         OR a=62
+         OR (g='edcbazy' AND f GLOB 'vwxyz*')
+  }
+} {62 99 scan 0 sort 0}
+do_test where7-2.51.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=190
+         OR a=62
+         OR (g='edcbazy' AND f GLOB 'vwxyz*')
+  }
+} {62 99 scan 0 sort 0}
+do_test where7-2.52.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=1089
+         OR b=102
+         OR a=6
+         OR b=608
+  }
+} {6 99 scan 0 sort 0}
+do_test where7-2.52.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=1089
+         OR b=102
+         OR a=6
+         OR b=608
+  }
+} {6 99 scan 0 sort 0}
+do_test where7-2.53.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=473
+         OR b=1100
+         OR (d>=53.0 AND d<54.0 AND d NOT NULL)
+         OR (d>=15.0 AND d<16.0 AND d NOT NULL)
+         OR a=20
+         OR b=1089
+         OR b=330
+         OR b=124
+         OR ((a BETWEEN 56 AND 58) AND a!=57)
+  }
+} {15 20 30 43 53 56 58 99 100 scan 0 sort 0}
+do_test where7-2.53.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=473
+         OR b=1100
+         OR (d>=53.0 AND d<54.0 AND d NOT NULL)
+         OR (d>=15.0 AND d<16.0 AND d NOT NULL)
+         OR a=20
+         OR b=1089
+         OR b=330
+         OR b=124
+         OR ((a BETWEEN 56 AND 58) AND a!=57)
+  }
+} {15 20 30 43 53 56 58 99 100 scan 0 sort 0}
+do_test where7-2.54.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 68 AND 70) AND a!=69)
+         OR b=223
+         OR a=12
+         OR b=1048
+         OR b=256
+         OR a=72
+         OR c>=34035
+         OR (g='rqponml' AND f GLOB 'jklmn*')
+         OR b=674
+         OR a=22
+  }
+} {12 22 35 68 70 72 scan 0 sort 0}
+do_test where7-2.54.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 68 AND 70) AND a!=69)
+         OR b=223
+         OR a=12
+         OR b=1048
+         OR b=256
+         OR a=72
+         OR c>=34035
+         OR (g='rqponml' AND f GLOB 'jklmn*')
+         OR b=674
+         OR a=22
+  }
+} {12 22 35 68 70 72 scan 0 sort 0}
+do_test where7-2.55.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 76 AND 78) AND a!=77)
+         OR (d>=24.0 AND d<25.0 AND d NOT NULL)
+         OR f='yzabcdefg'
+         OR c=14014
+         OR a=1
+         OR a=9
+         OR b=960
+  }
+} {1 9 24 40 41 42 50 76 78 scan 0 sort 0}
+do_test where7-2.55.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 76 AND 78) AND a!=77)
+         OR (d>=24.0 AND d<25.0 AND d NOT NULL)
+         OR f='yzabcdefg'
+         OR c=14014
+         OR a=1
+         OR a=9
+         OR b=960
+  }
+} {1 9 24 40 41 42 50 76 78 scan 0 sort 0}
+do_test where7-2.56.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='utsrqpo' AND f GLOB 'tuvwx*')
+         OR ((a BETWEEN 96 AND 98) AND a!=97)
+         OR (g='onmlkji' AND f GLOB 'xyzab*')
+  }
+} {19 49 96 98 scan 0 sort 0}
+do_test where7-2.56.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='utsrqpo' AND f GLOB 'tuvwx*')
+         OR ((a BETWEEN 96 AND 98) AND a!=97)
+         OR (g='onmlkji' AND f GLOB 'xyzab*')
+  }
+} {19 49 96 98 scan 0 sort 0}
+do_test where7-2.57.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=748
+         OR (d>=20.0 AND d<21.0 AND d NOT NULL)
+         OR (g='lkjihgf' AND f GLOB 'pqrst*')
+         OR (d>=9.0 AND d<10.0 AND d NOT NULL)
+         OR b=630
+  }
+} {9 20 67 68 scan 0 sort 0}
+do_test where7-2.57.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=748
+         OR (d>=20.0 AND d<21.0 AND d NOT NULL)
+         OR (g='lkjihgf' AND f GLOB 'pqrst*')
+         OR (d>=9.0 AND d<10.0 AND d NOT NULL)
+         OR b=630
+  }
+} {9 20 67 68 scan 0 sort 0}
+do_test where7-2.58.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=223
+         OR b=267
+         OR a=40
+         OR ((a BETWEEN 55 AND 57) AND a!=56)
+         OR c<=10
+         OR ((a BETWEEN 69 AND 71) AND a!=70)
+         OR b=528
+  }
+} {40 48 55 57 69 71 scan 0 sort 0}
+do_test where7-2.58.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=223
+         OR b=267
+         OR a=40
+         OR ((a BETWEEN 55 AND 57) AND a!=56)
+         OR c<=10
+         OR ((a BETWEEN 69 AND 71) AND a!=70)
+         OR b=528
+  }
+} {40 48 55 57 69 71 scan 0 sort 0}
+do_test where7-2.59.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f='rstuvwxyz'
+         OR a=41
+         OR b=462
+         OR a=68
+         OR a=84
+         OR a=69
+  }
+} {17 41 42 43 68 69 84 95 scan 0 sort 0}
+do_test where7-2.59.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f='rstuvwxyz'
+         OR a=41
+         OR b=462
+         OR a=68
+         OR a=84
+         OR a=69
+  }
+} {17 41 42 43 68 69 84 95 scan 0 sort 0}
+do_test where7-2.60.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=979
+         OR ((a BETWEEN 3 AND 5) AND a!=4)
+         OR (g='vutsrqp' AND f GLOB 'nopqr*')
+  }
+} {3 5 13 89 scan 0 sort 0}
+do_test where7-2.60.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=979
+         OR ((a BETWEEN 3 AND 5) AND a!=4)
+         OR (g='vutsrqp' AND f GLOB 'nopqr*')
+  }
+} {3 5 13 89 scan 0 sort 0}
+do_test where7-2.61.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=9.0 AND d<10.0 AND d NOT NULL)
+         OR a=8
+         OR a=62
+         OR b=726
+         OR (d>=10.0 AND d<11.0 AND d NOT NULL)
+         OR ((a BETWEEN 50 AND 52) AND a!=51)
+         OR (g='vutsrqp' AND f GLOB 'opqrs*')
+         OR ((a BETWEEN 59 AND 61) AND a!=60)
+  }
+} {8 9 10 14 50 52 59 61 62 66 scan 0 sort 0}
+do_test where7-2.61.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=9.0 AND d<10.0 AND d NOT NULL)
+         OR a=8
+         OR a=62
+         OR b=726
+         OR (d>=10.0 AND d<11.0 AND d NOT NULL)
+         OR ((a BETWEEN 50 AND 52) AND a!=51)
+         OR (g='vutsrqp' AND f GLOB 'opqrs*')
+         OR ((a BETWEEN 59 AND 61) AND a!=60)
+  }
+} {8 9 10 14 50 52 59 61 62 66 scan 0 sort 0}
+do_test where7-2.62.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=495
+         OR ((a BETWEEN 18 AND 20) AND a!=19)
+         OR b=924
+         OR c=11011
+         OR (f GLOB '?wxyz*' AND f GLOB 'vwxy*')
+         OR b=231
+         OR b=872
+         OR (g='jihgfed' AND f GLOB 'yzabc*')
+  }
+} {18 20 21 31 32 33 45 47 73 76 84 99 scan 0 sort 0}
+do_test where7-2.62.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=495
+         OR ((a BETWEEN 18 AND 20) AND a!=19)
+         OR b=924
+         OR c=11011
+         OR (f GLOB '?wxyz*' AND f GLOB 'vwxy*')
+         OR b=231
+         OR b=872
+         OR (g='jihgfed' AND f GLOB 'yzabc*')
+  }
+} {18 20 21 31 32 33 45 47 73 76 84 99 scan 0 sort 0}
+do_test where7-2.63.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=24
+         OR b=473
+         OR (g='hgfedcb' AND f GLOB 'ijklm*')
+         OR (g='fedcbaz' AND f GLOB 'stuvw*')
+         OR b=509
+         OR b=924
+         OR (d>=21.0 AND d<22.0 AND d NOT NULL)
+  }
+} {21 24 43 84 86 96 scan 0 sort 0}
+do_test where7-2.63.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=24
+         OR b=473
+         OR (g='hgfedcb' AND f GLOB 'ijklm*')
+         OR (g='fedcbaz' AND f GLOB 'stuvw*')
+         OR b=509
+         OR b=924
+         OR (d>=21.0 AND d<22.0 AND d NOT NULL)
+  }
+} {21 24 43 84 86 96 scan 0 sort 0}
+do_test where7-2.64.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=93.0 AND d<94.0 AND d NOT NULL)
+         OR (f GLOB '?jklm*' AND f GLOB 'ijkl*')
+         OR (f GLOB '?defg*' AND f GLOB 'cdef*')
+         OR (g='edcbazy' AND f GLOB 'wxyza*')
+         OR b=363
+         OR (g='xwvutsr' AND f GLOB 'fghij*')
+         OR ((a BETWEEN 23 AND 25) AND a!=24)
+         OR ((a BETWEEN 56 AND 58) AND a!=57)
+  }
+} {2 5 8 23 25 28 33 34 54 56 58 60 80 86 93 100 scan 0 sort 0}
+do_test where7-2.64.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=93.0 AND d<94.0 AND d NOT NULL)
+         OR (f GLOB '?jklm*' AND f GLOB 'ijkl*')
+         OR (f GLOB '?defg*' AND f GLOB 'cdef*')
+         OR (g='edcbazy' AND f GLOB 'wxyza*')
+         OR b=363
+         OR (g='xwvutsr' AND f GLOB 'fghij*')
+         OR ((a BETWEEN 23 AND 25) AND a!=24)
+         OR ((a BETWEEN 56 AND 58) AND a!=57)
+  }
+} {2 5 8 23 25 28 33 34 54 56 58 60 80 86 93 100 scan 0 sort 0}
+do_test where7-2.65.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=42
+         OR e IS NULL
+         OR b=495
+         OR 1000000<b
+         OR (f GLOB '?vwxy*' AND f GLOB 'uvwx*')
+         OR a=45
+         OR (g='kjihgfe' AND f GLOB 'rstuv*')
+         OR a=85
+         OR (d>=65.0 AND d<66.0 AND d NOT NULL)
+  }
+} {20 42 45 46 65 69 72 85 98 scan 0 sort 0}
+do_test where7-2.65.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=42
+         OR e IS NULL
+         OR b=495
+         OR 1000000<b
+         OR (f GLOB '?vwxy*' AND f GLOB 'uvwx*')
+         OR a=45
+         OR (g='kjihgfe' AND f GLOB 'rstuv*')
+         OR a=85
+         OR (d>=65.0 AND d<66.0 AND d NOT NULL)
+  }
+} {20 42 45 46 65 69 72 85 98 scan 0 sort 0}
+do_test where7-2.66.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=17017
+         OR f='ijklmnopq'
+         OR a=39
+  }
+} {8 34 39 49 50 51 60 86 scan 0 sort 0}
+do_test where7-2.66.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=17017
+         OR f='ijklmnopq'
+         OR a=39
+  }
+} {8 34 39 49 50 51 60 86 scan 0 sort 0}
+do_test where7-2.67.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c>=34035
+         OR ((a BETWEEN 96 AND 98) AND a!=97)
+         OR (g='utsrqpo' AND f GLOB 'tuvwx*')
+         OR (g='edcbazy' AND f GLOB 'wxyza*')
+         OR (f GLOB '?mnop*' AND f GLOB 'lmno*')
+         OR (d>=27.0 AND d<28.0 AND d NOT NULL)
+         OR a=91
+  }
+} {11 19 27 37 63 89 91 96 98 100 scan 0 sort 0}
+do_test where7-2.67.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c>=34035
+         OR ((a BETWEEN 96 AND 98) AND a!=97)
+         OR (g='utsrqpo' AND f GLOB 'tuvwx*')
+         OR (g='edcbazy' AND f GLOB 'wxyza*')
+         OR (f GLOB '?mnop*' AND f GLOB 'lmno*')
+         OR (d>=27.0 AND d<28.0 AND d NOT NULL)
+         OR a=91
+  }
+} {11 19 27 37 63 89 91 96 98 100 scan 0 sort 0}
+do_test where7-2.68.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='gfedcba' AND f GLOB 'nopqr*')
+         OR (d>=28.0 AND d<29.0 AND d NOT NULL)
+         OR (f GLOB '?klmn*' AND f GLOB 'jklm*')
+         OR b=649
+         OR b=231
+         OR (d>=48.0 AND d<49.0 AND d NOT NULL)
+         OR (d>=29.0 AND d<30.0 AND d NOT NULL)
+         OR b=58
+  }
+} {9 21 28 29 35 48 59 61 87 91 scan 0 sort 0}
+do_test where7-2.68.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='gfedcba' AND f GLOB 'nopqr*')
+         OR (d>=28.0 AND d<29.0 AND d NOT NULL)
+         OR (f GLOB '?klmn*' AND f GLOB 'jklm*')
+         OR b=649
+         OR b=231
+         OR (d>=48.0 AND d<49.0 AND d NOT NULL)
+         OR (d>=29.0 AND d<30.0 AND d NOT NULL)
+         OR b=58
+  }
+} {9 21 28 29 35 48 59 61 87 91 scan 0 sort 0}
+do_test where7-2.69.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=979
+         OR (d>=78.0 AND d<79.0 AND d NOT NULL)
+  }
+} {78 89 scan 0 sort 0}
+do_test where7-2.69.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=979
+         OR (d>=78.0 AND d<79.0 AND d NOT NULL)
+  }
+} {78 89 scan 0 sort 0}
+do_test where7-2.70.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=825
+         OR b=1004
+         OR ((a BETWEEN 60 AND 62) AND a!=61)
+         OR ((a BETWEEN 56 AND 58) AND a!=57)
+  }
+} {56 58 60 62 75 scan 0 sort 0}
+do_test where7-2.70.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=825
+         OR b=1004
+         OR ((a BETWEEN 60 AND 62) AND a!=61)
+         OR ((a BETWEEN 56 AND 58) AND a!=57)
+  }
+} {56 58 60 62 75 scan 0 sort 0}
+do_test where7-2.71.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=65
+         OR (g='nmlkjih' AND f GLOB 'fghij*')
+         OR c=22022
+         OR (f GLOB '?ghij*' AND f GLOB 'fghi*')
+         OR b=671
+         OR (g='onmlkji' AND f GLOB 'zabcd*')
+         OR a=91
+         OR (d>=98.0 AND d<99.0 AND d NOT NULL)
+         OR ((a BETWEEN 47 AND 49) AND a!=48)
+         OR b=1004
+         OR b=960
+  }
+} {5 31 47 49 51 57 61 64 65 66 83 91 98 scan 0 sort 0}
+do_test where7-2.71.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=65
+         OR (g='nmlkjih' AND f GLOB 'fghij*')
+         OR c=22022
+         OR (f GLOB '?ghij*' AND f GLOB 'fghi*')
+         OR b=671
+         OR (g='onmlkji' AND f GLOB 'zabcd*')
+         OR a=91
+         OR (d>=98.0 AND d<99.0 AND d NOT NULL)
+         OR ((a BETWEEN 47 AND 49) AND a!=48)
+         OR b=1004
+         OR b=960
+  }
+} {5 31 47 49 51 57 61 64 65 66 83 91 98 scan 0 sort 0}
+do_test where7-2.72.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=762
+         OR (d>=93.0 AND d<94.0 AND d NOT NULL)
+         OR ((a BETWEEN 56 AND 58) AND a!=57)
+  }
+} {56 58 93 scan 0 sort 0}
+do_test where7-2.72.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=762
+         OR (d>=93.0 AND d<94.0 AND d NOT NULL)
+         OR ((a BETWEEN 56 AND 58) AND a!=57)
+  }
+} {56 58 93 scan 0 sort 0}
+do_test where7-2.73.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=11.0 AND d<12.0 AND d NOT NULL)
+         OR a=14
+         OR (g='hgfedcb' AND f GLOB 'hijkl*')
+         OR (d>=54.0 AND d<55.0 AND d NOT NULL)
+         OR (d>=23.0 AND d<24.0 AND d NOT NULL)
+         OR b=212
+         OR (d>=78.0 AND d<79.0 AND d NOT NULL)
+  }
+} {11 14 23 54 78 85 scan 0 sort 0}
+do_test where7-2.73.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=11.0 AND d<12.0 AND d NOT NULL)
+         OR a=14
+         OR (g='hgfedcb' AND f GLOB 'hijkl*')
+         OR (d>=54.0 AND d<55.0 AND d NOT NULL)
+         OR (d>=23.0 AND d<24.0 AND d NOT NULL)
+         OR b=212
+         OR (d>=78.0 AND d<79.0 AND d NOT NULL)
+  }
+} {11 14 23 54 78 85 scan 0 sort 0}
+do_test where7-2.74.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='ihgfedc' AND f GLOB 'bcdef*')
+         OR b=168
+         OR b=25
+         OR (d>=89.0 AND d<90.0 AND d NOT NULL)
+         OR (g='lkjihgf' AND f GLOB 'opqrs*')
+  }
+} {66 79 89 scan 0 sort 0}
+do_test where7-2.74.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='ihgfedc' AND f GLOB 'bcdef*')
+         OR b=168
+         OR b=25
+         OR (d>=89.0 AND d<90.0 AND d NOT NULL)
+         OR (g='lkjihgf' AND f GLOB 'opqrs*')
+  }
+} {66 79 89 scan 0 sort 0}
+do_test where7-2.75.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=28028
+         OR f='jklmnopqr'
+         OR b=1015
+  }
+} {9 35 61 82 83 84 87 scan 0 sort 0}
+do_test where7-2.75.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=28028
+         OR f='jklmnopqr'
+         OR b=1015
+  }
+} {9 35 61 82 83 84 87 scan 0 sort 0}
+do_test where7-2.76.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=31031
+         OR (d>=100.0 AND d<101.0 AND d NOT NULL)
+         OR ((a BETWEEN 87 AND 89) AND a!=88)
+         OR (f GLOB '?qrst*' AND f GLOB 'pqrs*')
+         OR a=49
+         OR (d>=56.0 AND d<57.0 AND d NOT NULL)
+         OR (g='mlkjihg' AND f GLOB 'klmno*')
+  }
+} {15 41 49 56 62 67 87 89 91 92 93 100 scan 0 sort 0}
+do_test where7-2.76.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=31031
+         OR (d>=100.0 AND d<101.0 AND d NOT NULL)
+         OR ((a BETWEEN 87 AND 89) AND a!=88)
+         OR (f GLOB '?qrst*' AND f GLOB 'pqrs*')
+         OR a=49
+         OR (d>=56.0 AND d<57.0 AND d NOT NULL)
+         OR (g='mlkjihg' AND f GLOB 'klmno*')
+  }
+} {15 41 49 56 62 67 87 89 91 92 93 100 scan 0 sort 0}
+do_test where7-2.77.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=80
+         OR ((a BETWEEN 4 AND 6) AND a!=5)
+         OR (d>=29.0 AND d<30.0 AND d NOT NULL)
+         OR (d>=25.0 AND d<26.0 AND d NOT NULL)
+         OR b=971
+         OR a=60
+  }
+} {4 6 25 29 60 80 scan 0 sort 0}
+do_test where7-2.77.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=80
+         OR ((a BETWEEN 4 AND 6) AND a!=5)
+         OR (d>=29.0 AND d<30.0 AND d NOT NULL)
+         OR (d>=25.0 AND d<26.0 AND d NOT NULL)
+         OR b=971
+         OR a=60
+  }
+} {4 6 25 29 60 80 scan 0 sort 0}
+do_test where7-2.78.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=85.0 AND d<86.0 AND d NOT NULL)
+         OR (g='gfedcba' AND f GLOB 'lmnop*')
+         OR ((a BETWEEN 30 AND 32) AND a!=31)
+         OR b=1089
+         OR (d>=43.0 AND d<44.0 AND d NOT NULL)
+  }
+} {30 32 43 85 89 99 scan 0 sort 0}
+do_test where7-2.78.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=85.0 AND d<86.0 AND d NOT NULL)
+         OR (g='gfedcba' AND f GLOB 'lmnop*')
+         OR ((a BETWEEN 30 AND 32) AND a!=31)
+         OR b=1089
+         OR (d>=43.0 AND d<44.0 AND d NOT NULL)
+  }
+} {30 32 43 85 89 99 scan 0 sort 0}
+do_test where7-2.79.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=399
+         OR ((a BETWEEN 9 AND 11) AND a!=10)
+         OR (g='gfedcba' AND f GLOB 'mnopq*')
+         OR (g='nmlkjih' AND f GLOB 'fghij*')
+         OR a=10
+         OR b=1026
+  }
+} {9 10 11 57 90 scan 0 sort 0}
+do_test where7-2.79.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=399
+         OR ((a BETWEEN 9 AND 11) AND a!=10)
+         OR (g='gfedcba' AND f GLOB 'mnopq*')
+         OR (g='nmlkjih' AND f GLOB 'fghij*')
+         OR a=10
+         OR b=1026
+  }
+} {9 10 11 57 90 scan 0 sort 0}
+do_test where7-2.80.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='jihgfed' AND f GLOB 'yzabc*')
+         OR b=465
+         OR (g='ponmlkj' AND f GLOB 'rstuv*')
+         OR (g='lkjihgf' AND f GLOB 'nopqr*')
+         OR (g='xwvutsr' AND f GLOB 'fghij*')
+  }
+} {5 43 65 76 scan 0 sort 0}
+do_test where7-2.80.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='jihgfed' AND f GLOB 'yzabc*')
+         OR b=465
+         OR (g='ponmlkj' AND f GLOB 'rstuv*')
+         OR (g='lkjihgf' AND f GLOB 'nopqr*')
+         OR (g='xwvutsr' AND f GLOB 'fghij*')
+  }
+} {5 43 65 76 scan 0 sort 0}
+do_test where7-2.81.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=25
+         OR b=792
+         OR (f GLOB '?uvwx*' AND f GLOB 'tuvw*')
+  }
+} {19 25 45 71 72 97 scan 0 sort 0}
+do_test where7-2.81.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=25
+         OR b=792
+         OR (f GLOB '?uvwx*' AND f GLOB 'tuvw*')
+  }
+} {19 25 45 71 72 97 scan 0 sort 0}
+do_test where7-2.82.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=979
+         OR (d>=8.0 AND d<9.0 AND d NOT NULL)
+         OR a=13
+         OR a=15
+         OR ((a BETWEEN 6 AND 8) AND a!=7)
+         OR (g='utsrqpo' AND f GLOB 'vwxyz*')
+         OR a=27
+         OR ((a BETWEEN 98 AND 100) AND a!=99)
+         OR (g='lkjihgf' AND f GLOB 'pqrst*')
+         OR a=32
+         OR a=39
+  }
+} {6 8 13 15 21 27 32 39 67 89 98 100 scan 0 sort 0}
+do_test where7-2.82.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=979
+         OR (d>=8.0 AND d<9.0 AND d NOT NULL)
+         OR a=13
+         OR a=15
+         OR ((a BETWEEN 6 AND 8) AND a!=7)
+         OR (g='utsrqpo' AND f GLOB 'vwxyz*')
+         OR a=27
+         OR ((a BETWEEN 98 AND 100) AND a!=99)
+         OR (g='lkjihgf' AND f GLOB 'pqrst*')
+         OR a=32
+         OR a=39
+  }
+} {6 8 13 15 21 27 32 39 67 89 98 100 scan 0 sort 0}
+do_test where7-2.83.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f='hijklmnop'
+         OR (g='utsrqpo' AND f GLOB 'vwxyz*')
+         OR ((a BETWEEN 31 AND 33) AND a!=32)
+         OR (g='mlkjihg' AND f GLOB 'ghijk*')
+         OR (d>=1.0 AND d<2.0 AND d NOT NULL)
+         OR ((a BETWEEN 77 AND 79) AND a!=78)
+         OR b=528
+         OR c=30030
+         OR (g='qponmlk' AND f GLOB 'qrstu*')
+  }
+} {1 7 21 31 33 42 48 58 59 77 79 85 88 89 90 scan 0 sort 0}
+do_test where7-2.83.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f='hijklmnop'
+         OR (g='utsrqpo' AND f GLOB 'vwxyz*')
+         OR ((a BETWEEN 31 AND 33) AND a!=32)
+         OR (g='mlkjihg' AND f GLOB 'ghijk*')
+         OR (d>=1.0 AND d<2.0 AND d NOT NULL)
+         OR ((a BETWEEN 77 AND 79) AND a!=78)
+         OR b=528
+         OR c=30030
+         OR (g='qponmlk' AND f GLOB 'qrstu*')
+  }
+} {1 7 21 31 33 42 48 58 59 77 79 85 88 89 90 scan 0 sort 0}
+do_test where7-2.84.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=69
+         OR e IS NULL
+         OR b=352
+         OR 1000000<b
+         OR b=289
+  }
+} {32 scan 0 sort 0}
+do_test where7-2.84.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=69
+         OR e IS NULL
+         OR b=352
+         OR 1000000<b
+         OR b=289
+  }
+} {32 scan 0 sort 0}
+do_test where7-2.85.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='lkjihgf' AND f GLOB 'pqrst*')
+         OR b=748
+         OR b=696
+         OR (g='ponmlkj' AND f GLOB 'rstuv*')
+         OR (f GLOB '?fghi*' AND f GLOB 'efgh*')
+  }
+} {4 30 43 56 67 68 82 scan 0 sort 0}
+do_test where7-2.85.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='lkjihgf' AND f GLOB 'pqrst*')
+         OR b=748
+         OR b=696
+         OR (g='ponmlkj' AND f GLOB 'rstuv*')
+         OR (f GLOB '?fghi*' AND f GLOB 'efgh*')
+  }
+} {4 30 43 56 67 68 82 scan 0 sort 0}
+do_test where7-2.86.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 71 AND 73) AND a!=72)
+         OR (g='qponmlk' AND f GLOB 'opqrs*')
+         OR a=87
+         OR a=80
+         OR (g='kjihgfe' AND f GLOB 'qrstu*')
+         OR b=784
+         OR a=49
+         OR ((a BETWEEN 34 AND 36) AND a!=35)
+  }
+} {34 36 40 49 68 71 73 80 87 scan 0 sort 0}
+do_test where7-2.86.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 71 AND 73) AND a!=72)
+         OR (g='qponmlk' AND f GLOB 'opqrs*')
+         OR a=87
+         OR a=80
+         OR (g='kjihgfe' AND f GLOB 'qrstu*')
+         OR b=784
+         OR a=49
+         OR ((a BETWEEN 34 AND 36) AND a!=35)
+  }
+} {34 36 40 49 68 71 73 80 87 scan 0 sort 0}
+do_test where7-2.87.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 14 AND 16) AND a!=15)
+         OR (g='wvutsrq' AND f GLOB 'jklmn*')
+         OR (g='wvutsrq' AND f GLOB 'ijklm*')
+         OR (g='hgfedcb' AND f GLOB 'ijklm*')
+         OR c=1001
+         OR (g='hgfedcb' AND f GLOB 'hijkl*')
+         OR (d>=16.0 AND d<17.0 AND d NOT NULL)
+         OR (g='ihgfedc' AND f GLOB 'abcde*')
+         OR c=33033
+  }
+} {1 2 3 8 9 14 16 78 85 86 97 98 99 scan 0 sort 0}
+do_test where7-2.87.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 14 AND 16) AND a!=15)
+         OR (g='wvutsrq' AND f GLOB 'jklmn*')
+         OR (g='wvutsrq' AND f GLOB 'ijklm*')
+         OR (g='hgfedcb' AND f GLOB 'ijklm*')
+         OR c=1001
+         OR (g='hgfedcb' AND f GLOB 'hijkl*')
+         OR (d>=16.0 AND d<17.0 AND d NOT NULL)
+         OR (g='ihgfedc' AND f GLOB 'abcde*')
+         OR c=33033
+  }
+} {1 2 3 8 9 14 16 78 85 86 97 98 99 scan 0 sort 0}
+do_test where7-2.88.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=311
+         OR b=1103
+         OR b=88
+  }
+} {8 scan 0 sort 0}
+do_test where7-2.88.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=311
+         OR b=1103
+         OR b=88
+  }
+} {8 scan 0 sort 0}
+do_test where7-2.89.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 65 AND 67) AND a!=66)
+         OR ((a BETWEEN 26 AND 28) AND a!=27)
+         OR c=5005
+         OR b=1045
+         OR c=8008
+         OR f='bcdefghij'
+  }
+} {1 13 14 15 22 23 24 26 27 28 53 65 67 79 95 scan 0 sort 0}
+do_test where7-2.89.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 65 AND 67) AND a!=66)
+         OR ((a BETWEEN 26 AND 28) AND a!=27)
+         OR c=5005
+         OR b=1045
+         OR c=8008
+         OR f='bcdefghij'
+  }
+} {1 13 14 15 22 23 24 26 27 28 53 65 67 79 95 scan 0 sort 0}
+do_test where7-2.90.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=66
+         OR b=553
+         OR a=64
+         OR (d>=93.0 AND d<94.0 AND d NOT NULL)
+         OR (g='vutsrqp' AND f GLOB 'rstuv*')
+         OR a=62
+         OR b=1081
+         OR b=770
+         OR b=762
+         OR b=803
+         OR (g='srqponm' AND f GLOB 'efghi*')
+  }
+} {6 17 30 62 64 70 73 93 scan 0 sort 0}
+do_test where7-2.90.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=66
+         OR b=553
+         OR a=64
+         OR (d>=93.0 AND d<94.0 AND d NOT NULL)
+         OR (g='vutsrqp' AND f GLOB 'rstuv*')
+         OR a=62
+         OR b=1081
+         OR b=770
+         OR b=762
+         OR b=803
+         OR (g='srqponm' AND f GLOB 'efghi*')
+  }
+} {6 17 30 62 64 70 73 93 scan 0 sort 0}
+do_test where7-2.91.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='wvutsrq' AND f GLOB 'klmno*')
+         OR (f GLOB '?uvwx*' AND f GLOB 'tuvw*')
+         OR c=17017
+         OR b=168
+         OR ((a BETWEEN 77 AND 79) AND a!=78)
+  }
+} {10 19 45 49 50 51 71 77 79 97 scan 0 sort 0}
+do_test where7-2.91.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='wvutsrq' AND f GLOB 'klmno*')
+         OR (f GLOB '?uvwx*' AND f GLOB 'tuvw*')
+         OR c=17017
+         OR b=168
+         OR ((a BETWEEN 77 AND 79) AND a!=78)
+  }
+} {10 19 45 49 50 51 71 77 79 97 scan 0 sort 0}
+do_test where7-2.92.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=34034
+         OR (d>=68.0 AND d<69.0 AND d NOT NULL)
+         OR a=44
+         OR (g='tsrqpon' AND f GLOB 'xyzab*')
+         OR (d>=12.0 AND d<13.0 AND d NOT NULL)
+         OR c=31031
+         OR (g='ihgfedc' AND f GLOB 'abcde*')
+         OR b=619
+         OR (f GLOB '?efgh*' AND f GLOB 'defg*')
+         OR ((a BETWEEN 29 AND 31) AND a!=30)
+  }
+} {3 12 23 29 31 44 55 68 78 81 91 92 93 100 scan 0 sort 0}
+do_test where7-2.92.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=34034
+         OR (d>=68.0 AND d<69.0 AND d NOT NULL)
+         OR a=44
+         OR (g='tsrqpon' AND f GLOB 'xyzab*')
+         OR (d>=12.0 AND d<13.0 AND d NOT NULL)
+         OR c=31031
+         OR (g='ihgfedc' AND f GLOB 'abcde*')
+         OR b=619
+         OR (f GLOB '?efgh*' AND f GLOB 'defg*')
+         OR ((a BETWEEN 29 AND 31) AND a!=30)
+  }
+} {3 12 23 29 31 44 55 68 78 81 91 92 93 100 scan 0 sort 0}
+do_test where7-2.93.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=48
+         OR c=15015
+         OR ((a BETWEEN 65 AND 67) AND a!=66)
+         OR ((a BETWEEN 97 AND 99) AND a!=98)
+         OR (d>=44.0 AND d<45.0 AND d NOT NULL)
+         OR b=110
+         OR f='klmnopqrs'
+         OR (g='fedcbaz' AND f GLOB 'qrstu*')
+         OR (g='onmlkji' AND f GLOB 'abcde*')
+         OR b=674
+         OR (g='fedcbaz' AND f GLOB 'stuvw*')
+  }
+} {10 36 43 44 45 48 52 62 65 67 88 94 96 97 99 scan 0 sort 0}
+do_test where7-2.93.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=48
+         OR c=15015
+         OR ((a BETWEEN 65 AND 67) AND a!=66)
+         OR ((a BETWEEN 97 AND 99) AND a!=98)
+         OR (d>=44.0 AND d<45.0 AND d NOT NULL)
+         OR b=110
+         OR f='klmnopqrs'
+         OR (g='fedcbaz' AND f GLOB 'qrstu*')
+         OR (g='onmlkji' AND f GLOB 'abcde*')
+         OR b=674
+         OR (g='fedcbaz' AND f GLOB 'stuvw*')
+  }
+} {10 36 43 44 45 48 52 62 65 67 88 94 96 97 99 scan 0 sort 0}
+do_test where7-2.94.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=72
+         OR b=913
+         OR (d>=28.0 AND d<29.0 AND d NOT NULL)
+         OR b=121
+         OR (d>=2.0 AND d<3.0 AND d NOT NULL)
+  }
+} {2 11 28 72 83 scan 0 sort 0}
+do_test where7-2.94.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=72
+         OR b=913
+         OR (d>=28.0 AND d<29.0 AND d NOT NULL)
+         OR b=121
+         OR (d>=2.0 AND d<3.0 AND d NOT NULL)
+  }
+} {2 11 28 72 83 scan 0 sort 0}
+do_test where7-2.95.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=18
+         OR b=286
+         OR b=1015
+         OR a=49
+         OR b=264
+  }
+} {18 24 26 49 scan 0 sort 0}
+do_test where7-2.95.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=18
+         OR b=286
+         OR b=1015
+         OR a=49
+         OR b=264
+  }
+} {18 24 26 49 scan 0 sort 0}
+do_test where7-2.96.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=69
+         OR a=11
+         OR c=1001
+         OR ((a BETWEEN 54 AND 56) AND a!=55)
+         OR a=57
+         OR ((a BETWEEN 48 AND 50) AND a!=49)
+  }
+} {1 2 3 11 48 50 54 56 57 scan 0 sort 0}
+do_test where7-2.96.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=69
+         OR a=11
+         OR c=1001
+         OR ((a BETWEEN 54 AND 56) AND a!=55)
+         OR a=57
+         OR ((a BETWEEN 48 AND 50) AND a!=49)
+  }
+} {1 2 3 11 48 50 54 56 57 scan 0 sort 0}
+do_test where7-2.97.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=231
+         OR (g='hgfedcb' AND f GLOB 'ghijk*')
+  }
+} {21 84 scan 0 sort 0}
+do_test where7-2.97.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=231
+         OR (g='hgfedcb' AND f GLOB 'ghijk*')
+  }
+} {21 84 scan 0 sort 0}
+do_test where7-2.98.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=25
+         OR (d>=23.0 AND d<24.0 AND d NOT NULL)
+         OR ((a BETWEEN 81 AND 83) AND a!=82)
+         OR (d>=17.0 AND d<18.0 AND d NOT NULL)
+         OR ((a BETWEEN 3 AND 5) AND a!=4)
+         OR b=289
+         OR ((a BETWEEN 85 AND 87) AND a!=86)
+  }
+} {3 5 17 23 81 83 85 87 scan 0 sort 0}
+do_test where7-2.98.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=25
+         OR (d>=23.0 AND d<24.0 AND d NOT NULL)
+         OR ((a BETWEEN 81 AND 83) AND a!=82)
+         OR (d>=17.0 AND d<18.0 AND d NOT NULL)
+         OR ((a BETWEEN 3 AND 5) AND a!=4)
+         OR b=289
+         OR ((a BETWEEN 85 AND 87) AND a!=86)
+  }
+} {3 5 17 23 81 83 85 87 scan 0 sort 0}
+do_test where7-2.99.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f='defghijkl'
+         OR b=465
+         OR (d>=46.0 AND d<47.0 AND d NOT NULL)
+         OR c=9009
+         OR b=990
+         OR b=132
+         OR a=35
+         OR (d>=78.0 AND d<79.0 AND d NOT NULL)
+         OR a=81
+         OR ((a BETWEEN 71 AND 73) AND a!=72)
+  }
+} {3 12 25 26 27 29 35 46 55 71 73 78 81 90 scan 0 sort 0}
+do_test where7-2.99.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f='defghijkl'
+         OR b=465
+         OR (d>=46.0 AND d<47.0 AND d NOT NULL)
+         OR c=9009
+         OR b=990
+         OR b=132
+         OR a=35
+         OR (d>=78.0 AND d<79.0 AND d NOT NULL)
+         OR a=81
+         OR ((a BETWEEN 71 AND 73) AND a!=72)
+  }
+} {3 12 25 26 27 29 35 46 55 71 73 78 81 90 scan 0 sort 0}
+do_test where7-2.100.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=26026
+         OR (d>=9.0 AND d<10.0 AND d NOT NULL)
+         OR f='lmnopqrst'
+         OR a=6
+         OR ((a BETWEEN 59 AND 61) AND a!=60)
+  }
+} {6 9 11 37 59 61 63 76 77 78 89 scan 0 sort 0}
+do_test where7-2.100.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=26026
+         OR (d>=9.0 AND d<10.0 AND d NOT NULL)
+         OR f='lmnopqrst'
+         OR a=6
+         OR ((a BETWEEN 59 AND 61) AND a!=60)
+  }
+} {6 9 11 37 59 61 63 76 77 78 89 scan 0 sort 0}
+do_test where7-2.101.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 98 AND 100) AND a!=99)
+         OR (d>=7.0 AND d<8.0 AND d NOT NULL)
+  }
+} {7 98 100 scan 0 sort 0}
+do_test where7-2.101.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 98 AND 100) AND a!=99)
+         OR (d>=7.0 AND d<8.0 AND d NOT NULL)
+  }
+} {7 98 100 scan 0 sort 0}
+do_test where7-2.102.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=11011
+         OR (d>=51.0 AND d<52.0 AND d NOT NULL)
+         OR b=630
+         OR c=19019
+         OR (g='gfedcba' AND f GLOB 'lmnop*')
+         OR a=24
+         OR (d>=95.0 AND d<96.0 AND d NOT NULL)
+         OR ((a BETWEEN 51 AND 53) AND a!=52)
+  }
+} {24 31 32 33 51 53 55 56 57 89 95 scan 0 sort 0}
+do_test where7-2.102.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=11011
+         OR (d>=51.0 AND d<52.0 AND d NOT NULL)
+         OR b=630
+         OR c=19019
+         OR (g='gfedcba' AND f GLOB 'lmnop*')
+         OR a=24
+         OR (d>=95.0 AND d<96.0 AND d NOT NULL)
+         OR ((a BETWEEN 51 AND 53) AND a!=52)
+  }
+} {24 31 32 33 51 53 55 56 57 89 95 scan 0 sort 0}
+do_test where7-2.103.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 91 AND 93) AND a!=92)
+         OR b=993
+         OR a=81
+         OR b=366
+         OR b=69
+  }
+} {81 91 93 scan 0 sort 0}
+do_test where7-2.103.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 91 AND 93) AND a!=92)
+         OR b=993
+         OR a=81
+         OR b=366
+         OR b=69
+  }
+} {81 91 93 scan 0 sort 0}
+do_test where7-2.104.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f='stuvwxyza'
+         OR (f GLOB '?zabc*' AND f GLOB 'yzab*')
+         OR ((a BETWEEN 1 AND 3) AND a!=2)
+         OR b=1037
+         OR f='zabcdefgh'
+         OR (g='gfedcba' AND f GLOB 'mnopq*')
+  }
+} {1 3 18 24 25 44 50 51 70 76 77 90 96 scan 0 sort 0}
+do_test where7-2.104.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f='stuvwxyza'
+         OR (f GLOB '?zabc*' AND f GLOB 'yzab*')
+         OR ((a BETWEEN 1 AND 3) AND a!=2)
+         OR b=1037
+         OR f='zabcdefgh'
+         OR (g='gfedcba' AND f GLOB 'mnopq*')
+  }
+} {1 3 18 24 25 44 50 51 70 76 77 90 96 scan 0 sort 0}
+do_test where7-2.105.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='xwvutsr' AND f GLOB 'ghijk*')
+         OR ((a BETWEEN 4 AND 6) AND a!=5)
+         OR ((a BETWEEN 30 AND 32) AND a!=31)
+  }
+} {4 6 30 32 scan 0 sort 0}
+do_test where7-2.105.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='xwvutsr' AND f GLOB 'ghijk*')
+         OR ((a BETWEEN 4 AND 6) AND a!=5)
+         OR ((a BETWEEN 30 AND 32) AND a!=31)
+  }
+} {4 6 30 32 scan 0 sort 0}
+do_test where7-2.106.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=847
+         OR b=190
+         OR ((a BETWEEN 38 AND 40) AND a!=39)
+         OR ((a BETWEEN 70 AND 72) AND a!=71)
+         OR (f GLOB '?klmn*' AND f GLOB 'jklm*')
+         OR (g='tsrqpon' AND f GLOB 'xyzab*')
+         OR b=704
+  }
+} {9 23 35 38 40 61 64 70 72 77 87 scan 0 sort 0}
+do_test where7-2.106.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=847
+         OR b=190
+         OR ((a BETWEEN 38 AND 40) AND a!=39)
+         OR ((a BETWEEN 70 AND 72) AND a!=71)
+         OR (f GLOB '?klmn*' AND f GLOB 'jklm*')
+         OR (g='tsrqpon' AND f GLOB 'xyzab*')
+         OR b=704
+  }
+} {9 23 35 38 40 61 64 70 72 77 87 scan 0 sort 0}
+do_test where7-2.107.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=88
+         OR f='vwxyzabcd'
+         OR f='fghijklmn'
+         OR (g='gfedcba' AND f GLOB 'lmnop*')
+  }
+} {5 8 21 31 47 57 73 83 89 99 scan 0 sort 0}
+do_test where7-2.107.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=88
+         OR f='vwxyzabcd'
+         OR f='fghijklmn'
+         OR (g='gfedcba' AND f GLOB 'lmnop*')
+  }
+} {5 8 21 31 47 57 73 83 89 99 scan 0 sort 0}
+do_test where7-2.108.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=498
+         OR (d>=69.0 AND d<70.0 AND d NOT NULL)
+         OR a=1
+  }
+} {1 69 scan 0 sort 0}
+do_test where7-2.108.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=498
+         OR (d>=69.0 AND d<70.0 AND d NOT NULL)
+         OR a=1
+  }
+} {1 69 scan 0 sort 0}
+do_test where7-2.109.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 47 AND 49) AND a!=48)
+         OR a=5
+         OR b=179
+         OR (f GLOB '?stuv*' AND f GLOB 'rstu*')
+         OR a=69
+  }
+} {5 17 43 47 49 69 95 scan 0 sort 0}
+do_test where7-2.109.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 47 AND 49) AND a!=48)
+         OR a=5
+         OR b=179
+         OR (f GLOB '?stuv*' AND f GLOB 'rstu*')
+         OR a=69
+  }
+} {5 17 43 47 49 69 95 scan 0 sort 0}
+do_test where7-2.110.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=971
+         OR (g='xwvutsr' AND f GLOB 'hijkl*')
+         OR (g='yxwvuts' AND f GLOB 'bcdef*')
+         OR b=828
+         OR a=81
+         OR ((a BETWEEN 23 AND 25) AND a!=24)
+         OR b=627
+         OR b=355
+         OR b=377
+         OR a=44
+  }
+} {1 7 23 25 44 57 81 scan 0 sort 0}
+do_test where7-2.110.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=971
+         OR (g='xwvutsr' AND f GLOB 'hijkl*')
+         OR (g='yxwvuts' AND f GLOB 'bcdef*')
+         OR b=828
+         OR a=81
+         OR ((a BETWEEN 23 AND 25) AND a!=24)
+         OR b=627
+         OR b=355
+         OR b=377
+         OR a=44
+  }
+} {1 7 23 25 44 57 81 scan 0 sort 0}
+do_test where7-2.111.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=850
+         OR ((a BETWEEN 6 AND 8) AND a!=7)
+  }
+} {6 8 scan 0 sort 0}
+do_test where7-2.111.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=850
+         OR ((a BETWEEN 6 AND 8) AND a!=7)
+  }
+} {6 8 scan 0 sort 0}
+do_test where7-2.112.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='lkjihgf' AND f GLOB 'opqrs*')
+         OR (f GLOB '?stuv*' AND f GLOB 'rstu*')
+  }
+} {17 43 66 69 95 scan 0 sort 0}
+do_test where7-2.112.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='lkjihgf' AND f GLOB 'opqrs*')
+         OR (f GLOB '?stuv*' AND f GLOB 'rstu*')
+  }
+} {17 43 66 69 95 scan 0 sort 0}
+do_test where7-2.113.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=726
+         OR b=740
+         OR a=33
+         OR c=8008
+         OR f='rstuvwxyz'
+         OR b=168
+  }
+} {17 22 23 24 33 43 66 69 95 scan 0 sort 0}
+do_test where7-2.113.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=726
+         OR b=740
+         OR a=33
+         OR c=8008
+         OR f='rstuvwxyz'
+         OR b=168
+  }
+} {17 22 23 24 33 43 66 69 95 scan 0 sort 0}
+do_test where7-2.114.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='vutsrqp' AND f GLOB 'rstuv*')
+         OR (g='utsrqpo' AND f GLOB 'tuvwx*')
+         OR b=396
+  }
+} {17 19 36 scan 0 sort 0}
+do_test where7-2.114.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='vutsrqp' AND f GLOB 'rstuv*')
+         OR (g='utsrqpo' AND f GLOB 'tuvwx*')
+         OR b=396
+  }
+} {17 19 36 scan 0 sort 0}
+do_test where7-2.115.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=77
+         OR ((a BETWEEN 48 AND 50) AND a!=49)
+         OR c<=10
+         OR ((a BETWEEN 5 AND 7) AND a!=6)
+  }
+} {5 7 48 50 77 scan 0 sort 0}
+do_test where7-2.115.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=77
+         OR ((a BETWEEN 48 AND 50) AND a!=49)
+         OR c<=10
+         OR ((a BETWEEN 5 AND 7) AND a!=6)
+  }
+} {5 7 48 50 77 scan 0 sort 0}
+do_test where7-2.116.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 12 AND 14) AND a!=13)
+         OR ((a BETWEEN 13 AND 15) AND a!=14)
+         OR b=253
+         OR ((a BETWEEN 20 AND 22) AND a!=21)
+         OR b=396
+         OR b=630
+         OR (f GLOB '?cdef*' AND f GLOB 'bcde*')
+         OR c=3003
+         OR (d>=49.0 AND d<50.0 AND d NOT NULL)
+  }
+} {1 7 8 9 12 13 14 15 20 22 23 27 36 49 53 79 scan 0 sort 0}
+do_test where7-2.116.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 12 AND 14) AND a!=13)
+         OR ((a BETWEEN 13 AND 15) AND a!=14)
+         OR b=253
+         OR ((a BETWEEN 20 AND 22) AND a!=21)
+         OR b=396
+         OR b=630
+         OR (f GLOB '?cdef*' AND f GLOB 'bcde*')
+         OR c=3003
+         OR (d>=49.0 AND d<50.0 AND d NOT NULL)
+  }
+} {1 7 8 9 12 13 14 15 20 22 23 27 36 49 53 79 scan 0 sort 0}
+do_test where7-2.117.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=957
+         OR b=242
+         OR b=113
+         OR b=957
+         OR b=311
+         OR b=143
+         OR (f GLOB '?klmn*' AND f GLOB 'jklm*')
+         OR (g='onmlkji' AND f GLOB 'wxyza*')
+         OR (d>=10.0 AND d<11.0 AND d NOT NULL)
+  }
+} {9 10 13 22 35 48 61 87 scan 0 sort 0}
+do_test where7-2.117.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=957
+         OR b=242
+         OR b=113
+         OR b=957
+         OR b=311
+         OR b=143
+         OR (f GLOB '?klmn*' AND f GLOB 'jklm*')
+         OR (g='onmlkji' AND f GLOB 'wxyza*')
+         OR (d>=10.0 AND d<11.0 AND d NOT NULL)
+  }
+} {9 10 13 22 35 48 61 87 scan 0 sort 0}
+do_test where7-2.118.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 74 AND 76) AND a!=75)
+         OR ((a BETWEEN 94 AND 96) AND a!=95)
+         OR b=451
+         OR (g='lkjihgf' AND f GLOB 'opqrs*')
+  }
+} {41 66 74 76 94 96 scan 0 sort 0}
+do_test where7-2.118.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 74 AND 76) AND a!=75)
+         OR ((a BETWEEN 94 AND 96) AND a!=95)
+         OR b=451
+         OR (g='lkjihgf' AND f GLOB 'opqrs*')
+  }
+} {41 66 74 76 94 96 scan 0 sort 0}
+do_test where7-2.119.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=3.0 AND d<4.0 AND d NOT NULL)
+         OR b=451
+         OR b=363
+         OR b=330
+         OR (g='srqponm' AND f GLOB 'efghi*')
+         OR ((a BETWEEN 52 AND 54) AND a!=53)
+         OR (g='xwvutsr' AND f GLOB 'defgh*')
+         OR ((a BETWEEN 81 AND 83) AND a!=82)
+         OR (g='gfedcba' AND f GLOB 'lmnop*')
+  }
+} {3 30 33 41 52 54 81 83 89 scan 0 sort 0}
+do_test where7-2.119.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=3.0 AND d<4.0 AND d NOT NULL)
+         OR b=451
+         OR b=363
+         OR b=330
+         OR (g='srqponm' AND f GLOB 'efghi*')
+         OR ((a BETWEEN 52 AND 54) AND a!=53)
+         OR (g='xwvutsr' AND f GLOB 'defgh*')
+         OR ((a BETWEEN 81 AND 83) AND a!=82)
+         OR (g='gfedcba' AND f GLOB 'lmnop*')
+  }
+} {3 30 33 41 52 54 81 83 89 scan 0 sort 0}
+do_test where7-2.120.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='fedcbaz' AND f GLOB 'rstuv*')
+         OR (d>=68.0 AND d<69.0 AND d NOT NULL)
+         OR (g='vutsrqp' AND f GLOB 'pqrst*')
+         OR e IS NULL
+         OR b=759
+  }
+} {15 68 69 95 scan 0 sort 0}
+do_test where7-2.120.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='fedcbaz' AND f GLOB 'rstuv*')
+         OR (d>=68.0 AND d<69.0 AND d NOT NULL)
+         OR (g='vutsrqp' AND f GLOB 'pqrst*')
+         OR e IS NULL
+         OR b=759
+  }
+} {15 68 69 95 scan 0 sort 0}
+do_test where7-2.121.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (f GLOB '?uvwx*' AND f GLOB 'tuvw*')
+         OR ((a BETWEEN 19 AND 21) AND a!=20)
+         OR (g='jihgfed' AND f GLOB 'wxyza*')
+  }
+} {19 21 45 71 74 97 scan 0 sort 0}
+do_test where7-2.121.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (f GLOB '?uvwx*' AND f GLOB 'tuvw*')
+         OR ((a BETWEEN 19 AND 21) AND a!=20)
+         OR (g='jihgfed' AND f GLOB 'wxyza*')
+  }
+} {19 21 45 71 74 97 scan 0 sort 0}
+do_test where7-2.122.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=1037
+         OR (d>=47.0 AND d<48.0 AND d NOT NULL)
+         OR ((a BETWEEN 43 AND 45) AND a!=44)
+         OR (d>=82.0 AND d<83.0 AND d NOT NULL)
+         OR (d>=27.0 AND d<28.0 AND d NOT NULL)
+         OR ((a BETWEEN 75 AND 77) AND a!=76)
+  }
+} {27 43 45 47 75 77 82 scan 0 sort 0}
+do_test where7-2.122.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=1037
+         OR (d>=47.0 AND d<48.0 AND d NOT NULL)
+         OR ((a BETWEEN 43 AND 45) AND a!=44)
+         OR (d>=82.0 AND d<83.0 AND d NOT NULL)
+         OR (d>=27.0 AND d<28.0 AND d NOT NULL)
+         OR ((a BETWEEN 75 AND 77) AND a!=76)
+  }
+} {27 43 45 47 75 77 82 scan 0 sort 0}
+do_test where7-2.123.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=1045
+         OR ((a BETWEEN 36 AND 38) AND a!=37)
+         OR ((a BETWEEN 37 AND 39) AND a!=38)
+         OR c=12012
+  }
+} {34 35 36 37 38 39 95 scan 0 sort 0}
+do_test where7-2.123.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=1045
+         OR ((a BETWEEN 36 AND 38) AND a!=37)
+         OR ((a BETWEEN 37 AND 39) AND a!=38)
+         OR c=12012
+  }
+} {34 35 36 37 38 39 95 scan 0 sort 0}
+do_test where7-2.124.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='fedcbaz' AND f GLOB 'tuvwx*')
+         OR b=421
+         OR b=429
+         OR b=498
+         OR b=33
+         OR b=198
+         OR c=14014
+         OR (f GLOB '?yzab*' AND f GLOB 'xyza*')
+  }
+} {3 18 23 39 40 41 42 49 75 97 scan 0 sort 0}
+do_test where7-2.124.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='fedcbaz' AND f GLOB 'tuvwx*')
+         OR b=421
+         OR b=429
+         OR b=498
+         OR b=33
+         OR b=198
+         OR c=14014
+         OR (f GLOB '?yzab*' AND f GLOB 'xyza*')
+  }
+} {3 18 23 39 40 41 42 49 75 97 scan 0 sort 0}
+do_test where7-2.125.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=47
+         OR c=31031
+         OR a=38
+         OR (f GLOB '?jklm*' AND f GLOB 'ijkl*')
+         OR (g='srqponm' AND f GLOB 'fghij*')
+         OR b=242
+         OR (d>=70.0 AND d<71.0 AND d NOT NULL)
+         OR b=352
+         OR a=49
+         OR (g='nmlkjih' AND f GLOB 'fghij*')
+  }
+} {8 22 31 32 34 38 49 57 60 70 86 91 92 93 scan 0 sort 0}
+do_test where7-2.125.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=47
+         OR c=31031
+         OR a=38
+         OR (f GLOB '?jklm*' AND f GLOB 'ijkl*')
+         OR (g='srqponm' AND f GLOB 'fghij*')
+         OR b=242
+         OR (d>=70.0 AND d<71.0 AND d NOT NULL)
+         OR b=352
+         OR a=49
+         OR (g='nmlkjih' AND f GLOB 'fghij*')
+  }
+} {8 22 31 32 34 38 49 57 60 70 86 91 92 93 scan 0 sort 0}
+do_test where7-2.126.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=87.0 AND d<88.0 AND d NOT NULL)
+         OR b=704
+         OR a=7
+         OR a=8
+         OR a=46
+         OR b=740
+         OR b=993
+         OR (d>=38.0 AND d<39.0 AND d NOT NULL)
+  }
+} {7 8 38 46 64 87 scan 0 sort 0}
+do_test where7-2.126.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=87.0 AND d<88.0 AND d NOT NULL)
+         OR b=704
+         OR a=7
+         OR a=8
+         OR a=46
+         OR b=740
+         OR b=993
+         OR (d>=38.0 AND d<39.0 AND d NOT NULL)
+  }
+} {7 8 38 46 64 87 scan 0 sort 0}
+do_test where7-2.127.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 62 AND 64) AND a!=63)
+         OR c=32032
+         OR a=76
+  }
+} {62 64 76 94 95 96 scan 0 sort 0}
+do_test where7-2.127.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 62 AND 64) AND a!=63)
+         OR c=32032
+         OR a=76
+  }
+} {62 64 76 94 95 96 scan 0 sort 0}
+do_test where7-2.128.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='utsrqpo' AND f GLOB 'tuvwx*')
+         OR b=528
+         OR (g='gfedcba' AND f GLOB 'nopqr*')
+  }
+} {19 48 91 scan 0 sort 0}
+do_test where7-2.128.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='utsrqpo' AND f GLOB 'tuvwx*')
+         OR b=528
+         OR (g='gfedcba' AND f GLOB 'nopqr*')
+  }
+} {19 48 91 scan 0 sort 0}
+do_test where7-2.129.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=26.0 AND d<27.0 AND d NOT NULL)
+         OR (d>=97.0 AND d<98.0 AND d NOT NULL)
+         OR a=65
+  }
+} {26 65 97 scan 0 sort 0}
+do_test where7-2.129.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=26.0 AND d<27.0 AND d NOT NULL)
+         OR (d>=97.0 AND d<98.0 AND d NOT NULL)
+         OR a=65
+  }
+} {26 65 97 scan 0 sort 0}
+do_test where7-2.130.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=71.0 AND d<72.0 AND d NOT NULL)
+         OR 1000000<b
+         OR (g='yxwvuts' AND f GLOB 'cdefg*')
+         OR (d>=50.0 AND d<51.0 AND d NOT NULL)
+         OR a=24
+  }
+} {2 24 50 71 scan 0 sort 0}
+do_test where7-2.130.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=71.0 AND d<72.0 AND d NOT NULL)
+         OR 1000000<b
+         OR (g='yxwvuts' AND f GLOB 'cdefg*')
+         OR (d>=50.0 AND d<51.0 AND d NOT NULL)
+         OR a=24
+  }
+} {2 24 50 71 scan 0 sort 0}
+do_test where7-2.131.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=60
+         OR a=39
+         OR ((a BETWEEN 93 AND 95) AND a!=94)
+         OR b=36
+         OR b=814
+         OR a=14
+         OR (d>=61.0 AND d<62.0 AND d NOT NULL)
+         OR b=440
+         OR (g='xwvutsr' AND f GLOB 'fghij*')
+         OR (f GLOB '?abcd*' AND f GLOB 'zabc*')
+  }
+} {5 14 25 39 40 51 60 61 74 77 93 95 scan 0 sort 0}
+do_test where7-2.131.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=60
+         OR a=39
+         OR ((a BETWEEN 93 AND 95) AND a!=94)
+         OR b=36
+         OR b=814
+         OR a=14
+         OR (d>=61.0 AND d<62.0 AND d NOT NULL)
+         OR b=440
+         OR (g='xwvutsr' AND f GLOB 'fghij*')
+         OR (f GLOB '?abcd*' AND f GLOB 'zabc*')
+  }
+} {5 14 25 39 40 51 60 61 74 77 93 95 scan 0 sort 0}
+do_test where7-2.132.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f IS NULL
+         OR ((a BETWEEN 39 AND 41) AND a!=40)
+  }
+} {39 41 scan 0 sort 0}
+do_test where7-2.132.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f IS NULL
+         OR ((a BETWEEN 39 AND 41) AND a!=40)
+  }
+} {39 41 scan 0 sort 0}
+do_test where7-2.133.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=44
+         OR ((a BETWEEN 17 AND 19) AND a!=18)
+  }
+} {4 17 19 scan 0 sort 0}
+do_test where7-2.133.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=44
+         OR ((a BETWEEN 17 AND 19) AND a!=18)
+  }
+} {4 17 19 scan 0 sort 0}
+do_test where7-2.134.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=80.0 AND d<81.0 AND d NOT NULL)
+         OR a=82
+  }
+} {80 82 scan 0 sort 0}
+do_test where7-2.134.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=80.0 AND d<81.0 AND d NOT NULL)
+         OR a=82
+  }
+} {80 82 scan 0 sort 0}
+do_test where7-2.135.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 84 AND 86) AND a!=85)
+         OR c=24024
+         OR b=946
+         OR a=19
+         OR (d>=47.0 AND d<48.0 AND d NOT NULL)
+  }
+} {19 47 70 71 72 84 86 scan 0 sort 0}
+do_test where7-2.135.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 84 AND 86) AND a!=85)
+         OR c=24024
+         OR b=946
+         OR a=19
+         OR (d>=47.0 AND d<48.0 AND d NOT NULL)
+  }
+} {19 47 70 71 72 84 86 scan 0 sort 0}
+do_test where7-2.136.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=27
+         OR (f GLOB '?uvwx*' AND f GLOB 'tuvw*')
+         OR ((a BETWEEN 89 AND 91) AND a!=90)
+         OR (g='ihgfedc' AND f GLOB 'efghi*')
+         OR b=1045
+         OR a=84
+         OR f='qrstuvwxy'
+  }
+} {16 19 27 42 45 68 71 82 84 89 91 94 95 97 scan 0 sort 0}
+do_test where7-2.136.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=27
+         OR (f GLOB '?uvwx*' AND f GLOB 'tuvw*')
+         OR ((a BETWEEN 89 AND 91) AND a!=90)
+         OR (g='ihgfedc' AND f GLOB 'efghi*')
+         OR b=1045
+         OR a=84
+         OR f='qrstuvwxy'
+  }
+} {16 19 27 42 45 68 71 82 84 89 91 94 95 97 scan 0 sort 0}
+do_test where7-2.137.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=704
+         OR b=949
+         OR (d>=72.0 AND d<73.0 AND d NOT NULL)
+         OR (g='utsrqpo' AND f GLOB 'wxyza*')
+         OR c=24024
+         OR b=553
+         OR a=18
+         OR a=92
+  }
+} {18 22 64 70 71 72 92 scan 0 sort 0}
+do_test where7-2.137.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=704
+         OR b=949
+         OR (d>=72.0 AND d<73.0 AND d NOT NULL)
+         OR (g='utsrqpo' AND f GLOB 'wxyza*')
+         OR c=24024
+         OR b=553
+         OR a=18
+         OR a=92
+  }
+} {18 22 64 70 71 72 92 scan 0 sort 0}
+do_test where7-2.138.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (f GLOB '?cdef*' AND f GLOB 'bcde*')
+         OR (g='ihgfedc' AND f GLOB 'efghi*')
+         OR b=902
+         OR (d>=61.0 AND d<62.0 AND d NOT NULL)
+         OR b=25
+         OR ((a BETWEEN 16 AND 18) AND a!=17)
+         OR f='zabcdefgh'
+         OR b=385
+  }
+} {1 16 18 25 27 35 51 53 61 77 79 82 scan 0 sort 0}
+do_test where7-2.138.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (f GLOB '?cdef*' AND f GLOB 'bcde*')
+         OR (g='ihgfedc' AND f GLOB 'efghi*')
+         OR b=902
+         OR (d>=61.0 AND d<62.0 AND d NOT NULL)
+         OR b=25
+         OR ((a BETWEEN 16 AND 18) AND a!=17)
+         OR f='zabcdefgh'
+         OR b=385
+  }
+} {1 16 18 25 27 35 51 53 61 77 79 82 scan 0 sort 0}
+do_test where7-2.139.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=22
+         OR b=36
+         OR ((a BETWEEN 57 AND 59) AND a!=58)
+         OR (d>=31.0 AND d<32.0 AND d NOT NULL)
+         OR ((a BETWEEN 81 AND 83) AND a!=82)
+  }
+} {22 31 57 59 81 83 scan 0 sort 0}
+do_test where7-2.139.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=22
+         OR b=36
+         OR ((a BETWEEN 57 AND 59) AND a!=58)
+         OR (d>=31.0 AND d<32.0 AND d NOT NULL)
+         OR ((a BETWEEN 81 AND 83) AND a!=82)
+  }
+} {22 31 57 59 81 83 scan 0 sort 0}
+do_test where7-2.140.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=253
+         OR (d>=60.0 AND d<61.0 AND d NOT NULL)
+  }
+} {23 60 scan 0 sort 0}
+do_test where7-2.140.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=253
+         OR (d>=60.0 AND d<61.0 AND d NOT NULL)
+  }
+} {23 60 scan 0 sort 0}
+do_test where7-2.141.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (f GLOB '?qrst*' AND f GLOB 'pqrs*')
+         OR (f GLOB '?cdef*' AND f GLOB 'bcde*')
+         OR b=641
+         OR ((a BETWEEN 36 AND 38) AND a!=37)
+  }
+} {1 15 27 36 38 41 53 67 79 93 scan 0 sort 0}
+do_test where7-2.141.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (f GLOB '?qrst*' AND f GLOB 'pqrs*')
+         OR (f GLOB '?cdef*' AND f GLOB 'bcde*')
+         OR b=641
+         OR ((a BETWEEN 36 AND 38) AND a!=37)
+  }
+} {1 15 27 36 38 41 53 67 79 93 scan 0 sort 0}
+do_test where7-2.142.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=30030
+         OR a=18
+         OR ((a BETWEEN 44 AND 46) AND a!=45)
+         OR (d>=89.0 AND d<90.0 AND d NOT NULL)
+         OR b=11
+         OR (g='qponmlk' AND f GLOB 'opqrs*')
+         OR a=52
+         OR (g='utsrqpo' AND f GLOB 'wxyza*')
+         OR a=13
+         OR (d>=65.0 AND d<66.0 AND d NOT NULL)
+  }
+} {1 13 18 22 40 44 46 52 65 88 89 90 scan 0 sort 0}
+do_test where7-2.142.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=30030
+         OR a=18
+         OR ((a BETWEEN 44 AND 46) AND a!=45)
+         OR (d>=89.0 AND d<90.0 AND d NOT NULL)
+         OR b=11
+         OR (g='qponmlk' AND f GLOB 'opqrs*')
+         OR a=52
+         OR (g='utsrqpo' AND f GLOB 'wxyza*')
+         OR a=13
+         OR (d>=65.0 AND d<66.0 AND d NOT NULL)
+  }
+} {1 13 18 22 40 44 46 52 65 88 89 90 scan 0 sort 0}
+do_test where7-2.143.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=23023
+         OR f='efghijklm'
+         OR ((a BETWEEN 39 AND 41) AND a!=40)
+         OR b=1045
+         OR (d>=24.0 AND d<25.0 AND d NOT NULL)
+         OR f='uvwxyzabc'
+         OR (f GLOB '?zabc*' AND f GLOB 'yzab*')
+  }
+} {4 20 24 30 39 41 46 50 56 67 68 69 72 76 82 95 98 scan 0 sort 0}
+do_test where7-2.143.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=23023
+         OR f='efghijklm'
+         OR ((a BETWEEN 39 AND 41) AND a!=40)
+         OR b=1045
+         OR (d>=24.0 AND d<25.0 AND d NOT NULL)
+         OR f='uvwxyzabc'
+         OR (f GLOB '?zabc*' AND f GLOB 'yzab*')
+  }
+} {4 20 24 30 39 41 46 50 56 67 68 69 72 76 82 95 98 scan 0 sort 0}
+do_test where7-2.144.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=476
+         OR a=11
+         OR a=52
+         OR b=858
+         OR b=264
+         OR f='wxyzabcde'
+         OR c=18018
+         OR b=597
+         OR (d>=69.0 AND d<70.0 AND d NOT NULL)
+  }
+} {11 22 24 48 52 53 54 69 74 78 100 scan 0 sort 0}
+do_test where7-2.144.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=476
+         OR a=11
+         OR a=52
+         OR b=858
+         OR b=264
+         OR f='wxyzabcde'
+         OR c=18018
+         OR b=597
+         OR (d>=69.0 AND d<70.0 AND d NOT NULL)
+  }
+} {11 22 24 48 52 53 54 69 74 78 100 scan 0 sort 0}
+do_test where7-2.145.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=91
+         OR (g='utsrqpo' AND f GLOB 'wxyza*')
+         OR (d>=21.0 AND d<22.0 AND d NOT NULL)
+         OR (g='wvutsrq' AND f GLOB 'mnopq*')
+         OR ((a BETWEEN 89 AND 91) AND a!=90)
+         OR (d>=85.0 AND d<86.0 AND d NOT NULL)
+         OR b=102
+         OR (d>=36.0 AND d<37.0 AND d NOT NULL)
+         OR ((a BETWEEN 59 AND 61) AND a!=60)
+         OR b=784
+  }
+} {12 21 22 36 59 61 85 89 91 scan 0 sort 0}
+do_test where7-2.145.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=91
+         OR (g='utsrqpo' AND f GLOB 'wxyza*')
+         OR (d>=21.0 AND d<22.0 AND d NOT NULL)
+         OR (g='wvutsrq' AND f GLOB 'mnopq*')
+         OR ((a BETWEEN 89 AND 91) AND a!=90)
+         OR (d>=85.0 AND d<86.0 AND d NOT NULL)
+         OR b=102
+         OR (d>=36.0 AND d<37.0 AND d NOT NULL)
+         OR ((a BETWEEN 59 AND 61) AND a!=60)
+         OR b=784
+  }
+} {12 21 22 36 59 61 85 89 91 scan 0 sort 0}
+do_test where7-2.146.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='vutsrqp' AND f GLOB 'opqrs*')
+         OR (g='gfedcba' AND f GLOB 'nopqr*')
+         OR b=990
+         OR a=52
+         OR (d>=38.0 AND d<39.0 AND d NOT NULL)
+  }
+} {14 38 52 90 91 scan 0 sort 0}
+do_test where7-2.146.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='vutsrqp' AND f GLOB 'opqrs*')
+         OR (g='gfedcba' AND f GLOB 'nopqr*')
+         OR b=990
+         OR a=52
+         OR (d>=38.0 AND d<39.0 AND d NOT NULL)
+  }
+} {14 38 52 90 91 scan 0 sort 0}
+do_test where7-2.147.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=22022
+         OR b=960
+         OR ((a BETWEEN 43 AND 45) AND a!=44)
+         OR a=48
+         OR b=729
+         OR ((a BETWEEN 41 AND 43) AND a!=42)
+         OR a=44
+         OR b=773
+  }
+} {41 43 44 45 48 64 65 66 scan 0 sort 0}
+do_test where7-2.147.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=22022
+         OR b=960
+         OR ((a BETWEEN 43 AND 45) AND a!=44)
+         OR a=48
+         OR b=729
+         OR ((a BETWEEN 41 AND 43) AND a!=42)
+         OR a=44
+         OR b=773
+  }
+} {41 43 44 45 48 64 65 66 scan 0 sort 0}
+do_test where7-2.148.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 68 AND 70) AND a!=69)
+         OR b=421
+         OR ((a BETWEEN 22 AND 24) AND a!=23)
+         OR (d>=2.0 AND d<3.0 AND d NOT NULL)
+         OR (g='srqponm' AND f GLOB 'defgh*')
+         OR (d>=89.0 AND d<90.0 AND d NOT NULL)
+         OR (d>=24.0 AND d<25.0 AND d NOT NULL)
+         OR c=22022
+         OR b=825
+         OR ((a BETWEEN 17 AND 19) AND a!=18)
+         OR (f GLOB '?hijk*' AND f GLOB 'ghij*')
+  }
+} {2 6 17 19 22 24 29 32 58 64 65 66 68 70 75 84 89 scan 0 sort 0}
+do_test where7-2.148.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 68 AND 70) AND a!=69)
+         OR b=421
+         OR ((a BETWEEN 22 AND 24) AND a!=23)
+         OR (d>=2.0 AND d<3.0 AND d NOT NULL)
+         OR (g='srqponm' AND f GLOB 'defgh*')
+         OR (d>=89.0 AND d<90.0 AND d NOT NULL)
+         OR (d>=24.0 AND d<25.0 AND d NOT NULL)
+         OR c=22022
+         OR b=825
+         OR ((a BETWEEN 17 AND 19) AND a!=18)
+         OR (f GLOB '?hijk*' AND f GLOB 'ghij*')
+  }
+} {2 6 17 19 22 24 29 32 58 64 65 66 68 70 75 84 89 scan 0 sort 0}
+do_test where7-2.149.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=44.0 AND d<45.0 AND d NOT NULL)
+         OR b=484
+         OR b=1026
+         OR a=90
+         OR (g='jihgfed' AND f GLOB 'wxyza*')
+         OR b=608
+         OR a=32
+  }
+} {32 44 74 90 scan 0 sort 0}
+do_test where7-2.149.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=44.0 AND d<45.0 AND d NOT NULL)
+         OR b=484
+         OR b=1026
+         OR a=90
+         OR (g='jihgfed' AND f GLOB 'wxyza*')
+         OR b=608
+         OR a=32
+  }
+} {32 44 74 90 scan 0 sort 0}
+do_test where7-2.150.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c<=10
+         OR (d>=76.0 AND d<77.0 AND d NOT NULL)
+         OR b=154
+         OR (d>=77.0 AND d<78.0 AND d NOT NULL)
+         OR b=880
+         OR a=55
+         OR b=773
+         OR b=319
+         OR (g='hgfedcb' AND f GLOB 'fghij*')
+  }
+} {14 29 55 76 77 80 83 scan 0 sort 0}
+do_test where7-2.150.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c<=10
+         OR (d>=76.0 AND d<77.0 AND d NOT NULL)
+         OR b=154
+         OR (d>=77.0 AND d<78.0 AND d NOT NULL)
+         OR b=880
+         OR a=55
+         OR b=773
+         OR b=319
+         OR (g='hgfedcb' AND f GLOB 'fghij*')
+  }
+} {14 29 55 76 77 80 83 scan 0 sort 0}
+do_test where7-2.151.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='wvutsrq' AND f GLOB 'ijklm*')
+         OR f='mnopqrstu'
+         OR a=62
+  }
+} {8 12 38 62 64 90 scan 0 sort 0}
+do_test where7-2.151.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='wvutsrq' AND f GLOB 'ijklm*')
+         OR f='mnopqrstu'
+         OR a=62
+  }
+} {8 12 38 62 64 90 scan 0 sort 0}
+do_test where7-2.152.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=33
+         OR b=1045
+         OR (d>=40.0 AND d<41.0 AND d NOT NULL)
+         OR c=13013
+         OR (g='gfedcba' AND f GLOB 'mnopq*')
+         OR b=124
+         OR (g='gfedcba' AND f GLOB 'klmno*')
+  }
+} {33 37 38 39 40 88 90 95 scan 0 sort 0}
+do_test where7-2.152.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=33
+         OR b=1045
+         OR (d>=40.0 AND d<41.0 AND d NOT NULL)
+         OR c=13013
+         OR (g='gfedcba' AND f GLOB 'mnopq*')
+         OR b=124
+         OR (g='gfedcba' AND f GLOB 'klmno*')
+  }
+} {33 37 38 39 40 88 90 95 scan 0 sort 0}
+do_test where7-2.153.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=883
+         OR c=32032
+         OR f='fghijklmn'
+         OR ((a BETWEEN 49 AND 51) AND a!=50)
+         OR b=421
+         OR b=803
+         OR c=4004
+         OR (f GLOB '?defg*' AND f GLOB 'cdef*')
+  }
+} {2 5 10 11 12 28 31 49 51 54 57 73 80 83 94 95 96 scan 0 sort 0}
+do_test where7-2.153.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=883
+         OR c=32032
+         OR f='fghijklmn'
+         OR ((a BETWEEN 49 AND 51) AND a!=50)
+         OR b=421
+         OR b=803
+         OR c=4004
+         OR (f GLOB '?defg*' AND f GLOB 'cdef*')
+  }
+} {2 5 10 11 12 28 31 49 51 54 57 73 80 83 94 95 96 scan 0 sort 0}
+do_test where7-2.154.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (f GLOB '?rstu*' AND f GLOB 'qrst*')
+         OR b=99
+         OR (g='kjihgfe' AND f GLOB 'uvwxy*')
+  }
+} {9 16 42 68 72 94 scan 0 sort 0}
+do_test where7-2.154.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (f GLOB '?rstu*' AND f GLOB 'qrst*')
+         OR b=99
+         OR (g='kjihgfe' AND f GLOB 'uvwxy*')
+  }
+} {9 16 42 68 72 94 scan 0 sort 0}
+do_test where7-2.155.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f='defghijkl'
+         OR b=308
+  }
+} {3 28 29 55 81 scan 0 sort 0}
+do_test where7-2.155.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f='defghijkl'
+         OR b=308
+  }
+} {3 28 29 55 81 scan 0 sort 0}
+do_test where7-2.156.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=795
+         OR (g='yxwvuts' AND f GLOB 'cdefg*')
+         OR f='jklmnopqr'
+         OR (f GLOB '?defg*' AND f GLOB 'cdef*')
+         OR (d>=51.0 AND d<52.0 AND d NOT NULL)
+         OR b=1056
+  }
+} {2 9 28 35 51 54 61 80 87 96 scan 0 sort 0}
+do_test where7-2.156.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=795
+         OR (g='yxwvuts' AND f GLOB 'cdefg*')
+         OR f='jklmnopqr'
+         OR (f GLOB '?defg*' AND f GLOB 'cdef*')
+         OR (d>=51.0 AND d<52.0 AND d NOT NULL)
+         OR b=1056
+  }
+} {2 9 28 35 51 54 61 80 87 96 scan 0 sort 0}
+do_test where7-2.157.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=47
+         OR (d>=94.0 AND d<95.0 AND d NOT NULL)
+         OR b=410
+         OR b=682
+         OR ((a BETWEEN 98 AND 100) AND a!=99)
+         OR f='hijklmnop'
+         OR (d>=40.0 AND d<41.0 AND d NOT NULL)
+         OR b=168
+         OR (d>=51.0 AND d<52.0 AND d NOT NULL)
+         OR a=32
+         OR a=72
+  }
+} {7 32 33 40 47 51 59 62 72 85 94 98 100 scan 0 sort 0}
+do_test where7-2.157.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=47
+         OR (d>=94.0 AND d<95.0 AND d NOT NULL)
+         OR b=410
+         OR b=682
+         OR ((a BETWEEN 98 AND 100) AND a!=99)
+         OR f='hijklmnop'
+         OR (d>=40.0 AND d<41.0 AND d NOT NULL)
+         OR b=168
+         OR (d>=51.0 AND d<52.0 AND d NOT NULL)
+         OR a=32
+         OR a=72
+  }
+} {7 32 33 40 47 51 59 62 72 85 94 98 100 scan 0 sort 0}
+do_test where7-2.158.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=616
+         OR ((a BETWEEN 25 AND 27) AND a!=26)
+         OR (d>=38.0 AND d<39.0 AND d NOT NULL)
+         OR a=96
+  }
+} {25 27 38 56 96 scan 0 sort 0}
+do_test where7-2.158.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=616
+         OR ((a BETWEEN 25 AND 27) AND a!=26)
+         OR (d>=38.0 AND d<39.0 AND d NOT NULL)
+         OR a=96
+  }
+} {25 27 38 56 96 scan 0 sort 0}
+do_test where7-2.159.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=66.0 AND d<67.0 AND d NOT NULL)
+         OR b=352
+  }
+} {32 66 scan 0 sort 0}
+do_test where7-2.159.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=66.0 AND d<67.0 AND d NOT NULL)
+         OR b=352
+  }
+} {32 66 scan 0 sort 0}
+do_test where7-2.160.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=795
+         OR c=13013
+         OR (d>=28.0 AND d<29.0 AND d NOT NULL)
+         OR b=597
+  }
+} {28 37 38 39 scan 0 sort 0}
+do_test where7-2.160.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=795
+         OR c=13013
+         OR (d>=28.0 AND d<29.0 AND d NOT NULL)
+         OR b=597
+  }
+} {28 37 38 39 scan 0 sort 0}
+do_test where7-2.161.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=23
+         OR (g='kjihgfe' AND f GLOB 'qrstu*')
+         OR b=641
+         OR b=352
+         OR b=179
+         OR b=806
+         OR b=839
+         OR b=33
+  }
+} {3 23 32 68 scan 0 sort 0}
+do_test where7-2.161.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=23
+         OR (g='kjihgfe' AND f GLOB 'qrstu*')
+         OR b=641
+         OR b=352
+         OR b=179
+         OR b=806
+         OR b=839
+         OR b=33
+  }
+} {3 23 32 68 scan 0 sort 0}
+do_test where7-2.162.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=1070
+         OR b=1078
+         OR ((a BETWEEN 11 AND 13) AND a!=12)
+         OR c=12012
+         OR (g='hgfedcb' AND f GLOB 'ghijk*')
+         OR b=319
+         OR c=5005
+         OR 1000000<b
+         OR b=1037
+         OR b=234
+  }
+} {11 13 14 15 29 34 35 36 84 98 scan 0 sort 0}
+do_test where7-2.162.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=1070
+         OR b=1078
+         OR ((a BETWEEN 11 AND 13) AND a!=12)
+         OR c=12012
+         OR (g='hgfedcb' AND f GLOB 'ghijk*')
+         OR b=319
+         OR c=5005
+         OR 1000000<b
+         OR b=1037
+         OR b=234
+  }
+} {11 13 14 15 29 34 35 36 84 98 scan 0 sort 0}
+do_test where7-2.163.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f='cdefghijk'
+         OR (f GLOB '?stuv*' AND f GLOB 'rstu*')
+         OR (g='ihgfedc' AND f GLOB 'defgh*')
+         OR (d>=59.0 AND d<60.0 AND d NOT NULL)
+  }
+} {2 17 28 43 54 59 69 80 81 95 scan 0 sort 0}
+do_test where7-2.163.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f='cdefghijk'
+         OR (f GLOB '?stuv*' AND f GLOB 'rstu*')
+         OR (g='ihgfedc' AND f GLOB 'defgh*')
+         OR (d>=59.0 AND d<60.0 AND d NOT NULL)
+  }
+} {2 17 28 43 54 59 69 80 81 95 scan 0 sort 0}
+do_test where7-2.164.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=65
+         OR c=14014
+         OR (d>=88.0 AND d<89.0 AND d NOT NULL)
+         OR a=47
+         OR b=220
+         OR (d>=37.0 AND d<38.0 AND d NOT NULL)
+  }
+} {20 37 40 41 42 47 65 88 scan 0 sort 0}
+do_test where7-2.164.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=65
+         OR c=14014
+         OR (d>=88.0 AND d<89.0 AND d NOT NULL)
+         OR a=47
+         OR b=220
+         OR (d>=37.0 AND d<38.0 AND d NOT NULL)
+  }
+} {20 37 40 41 42 47 65 88 scan 0 sort 0}
+do_test where7-2.165.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='hgfedcb' AND f GLOB 'ijklm*')
+         OR (g='rqponml' AND f GLOB 'jklmn*')
+         OR b=891
+         OR (g='nmlkjih' AND f GLOB 'fghij*')
+         OR b=484
+         OR a=62
+         OR (g='ihgfedc' AND f GLOB 'defgh*')
+  }
+} {35 44 57 62 81 86 scan 0 sort 0}
+do_test where7-2.165.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='hgfedcb' AND f GLOB 'ijklm*')
+         OR (g='rqponml' AND f GLOB 'jklmn*')
+         OR b=891
+         OR (g='nmlkjih' AND f GLOB 'fghij*')
+         OR b=484
+         OR a=62
+         OR (g='ihgfedc' AND f GLOB 'defgh*')
+  }
+} {35 44 57 62 81 86 scan 0 sort 0}
+do_test where7-2.166.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=363
+         OR (g='tsrqpon' AND f GLOB 'zabcd*')
+         OR ((a BETWEEN 58 AND 60) AND a!=59)
+         OR (d>=2.0 AND d<3.0 AND d NOT NULL)
+         OR (d>=46.0 AND d<47.0 AND d NOT NULL)
+         OR (g='wvutsrq' AND f GLOB 'klmno*')
+         OR a=39
+         OR (d>=54.0 AND d<55.0 AND d NOT NULL)
+  }
+} {2 10 25 33 39 46 54 58 60 scan 0 sort 0}
+do_test where7-2.166.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=363
+         OR (g='tsrqpon' AND f GLOB 'zabcd*')
+         OR ((a BETWEEN 58 AND 60) AND a!=59)
+         OR (d>=2.0 AND d<3.0 AND d NOT NULL)
+         OR (d>=46.0 AND d<47.0 AND d NOT NULL)
+         OR (g='wvutsrq' AND f GLOB 'klmno*')
+         OR a=39
+         OR (d>=54.0 AND d<55.0 AND d NOT NULL)
+  }
+} {2 10 25 33 39 46 54 58 60 scan 0 sort 0}
+do_test where7-2.167.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=30030
+         OR (d>=52.0 AND d<53.0 AND d NOT NULL)
+         OR b=850
+         OR (f GLOB '?vwxy*' AND f GLOB 'uvwx*')
+  }
+} {20 46 52 72 88 89 90 98 scan 0 sort 0}
+do_test where7-2.167.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=30030
+         OR (d>=52.0 AND d<53.0 AND d NOT NULL)
+         OR b=850
+         OR (f GLOB '?vwxy*' AND f GLOB 'uvwx*')
+  }
+} {20 46 52 72 88 89 90 98 scan 0 sort 0}
+do_test where7-2.168.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=23.0 AND d<24.0 AND d NOT NULL)
+         OR (d>=91.0 AND d<92.0 AND d NOT NULL)
+         OR b=80
+  }
+} {23 91 scan 0 sort 0}
+do_test where7-2.168.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=23.0 AND d<24.0 AND d NOT NULL)
+         OR (d>=91.0 AND d<92.0 AND d NOT NULL)
+         OR b=80
+  }
+} {23 91 scan 0 sort 0}
+do_test where7-2.169.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 59 AND 61) AND a!=60)
+         OR (d>=77.0 AND d<78.0 AND d NOT NULL)
+         OR b=462
+         OR a=51
+         OR b=344
+         OR b=333
+         OR ((a BETWEEN 61 AND 63) AND a!=62)
+  }
+} {42 51 59 61 63 77 scan 0 sort 0}
+do_test where7-2.169.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 59 AND 61) AND a!=60)
+         OR (d>=77.0 AND d<78.0 AND d NOT NULL)
+         OR b=462
+         OR a=51
+         OR b=344
+         OR b=333
+         OR ((a BETWEEN 61 AND 63) AND a!=62)
+  }
+} {42 51 59 61 63 77 scan 0 sort 0}
+do_test where7-2.170.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=586
+         OR a=21
+         OR b=638
+  }
+} {21 58 scan 0 sort 0}
+do_test where7-2.170.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=586
+         OR a=21
+         OR b=638
+  }
+} {21 58 scan 0 sort 0}
+do_test where7-2.171.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=179
+         OR ((a BETWEEN 2 AND 4) AND a!=3)
+         OR ((a BETWEEN 40 AND 42) AND a!=41)
+         OR (d>=13.0 AND d<14.0 AND d NOT NULL)
+         OR ((a BETWEEN 72 AND 74) AND a!=73)
+  }
+} {2 4 13 40 42 72 74 scan 0 sort 0}
+do_test where7-2.171.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=179
+         OR ((a BETWEEN 2 AND 4) AND a!=3)
+         OR ((a BETWEEN 40 AND 42) AND a!=41)
+         OR (d>=13.0 AND d<14.0 AND d NOT NULL)
+         OR ((a BETWEEN 72 AND 74) AND a!=73)
+  }
+} {2 4 13 40 42 72 74 scan 0 sort 0}
+do_test where7-2.172.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=333
+         OR (g='nmlkjih' AND f GLOB 'bcdef*')
+         OR (d>=62.0 AND d<63.0 AND d NOT NULL)
+         OR b=407
+         OR a=5
+         OR b=817
+         OR b=891
+  }
+} {5 37 53 62 81 scan 0 sort 0}
+do_test where7-2.172.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=333
+         OR (g='nmlkjih' AND f GLOB 'bcdef*')
+         OR (d>=62.0 AND d<63.0 AND d NOT NULL)
+         OR b=407
+         OR a=5
+         OR b=817
+         OR b=891
+  }
+} {5 37 53 62 81 scan 0 sort 0}
+do_test where7-2.173.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b<0
+         OR b=352
+         OR b=517
+         OR (g='fedcbaz' AND f GLOB 'tuvwx*')
+         OR ((a BETWEEN 12 AND 14) AND a!=13)
+         OR b=1012
+         OR ((a BETWEEN 11 AND 13) AND a!=12)
+  }
+} {11 12 13 14 32 47 92 97 scan 0 sort 0}
+do_test where7-2.173.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b<0
+         OR b=352
+         OR b=517
+         OR (g='fedcbaz' AND f GLOB 'tuvwx*')
+         OR ((a BETWEEN 12 AND 14) AND a!=13)
+         OR b=1012
+         OR ((a BETWEEN 11 AND 13) AND a!=12)
+  }
+} {11 12 13 14 32 47 92 97 scan 0 sort 0}
+do_test where7-2.174.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='qponmlk' AND f GLOB 'pqrst*')
+         OR c<=10
+         OR (g='vutsrqp' AND f GLOB 'opqrs*')
+         OR a=32
+         OR (g='wvutsrq' AND f GLOB 'mnopq*')
+         OR d<0.0
+  }
+} {12 14 32 41 scan 0 sort 0}
+do_test where7-2.174.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='qponmlk' AND f GLOB 'pqrst*')
+         OR c<=10
+         OR (g='vutsrqp' AND f GLOB 'opqrs*')
+         OR a=32
+         OR (g='wvutsrq' AND f GLOB 'mnopq*')
+         OR d<0.0
+  }
+} {12 14 32 41 scan 0 sort 0}
+do_test where7-2.175.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 20 AND 22) AND a!=21)
+         OR b=1045
+         OR (g='ihgfedc' AND f GLOB 'abcde*')
+         OR a=26
+         OR (g='gfedcba' AND f GLOB 'opqrs*')
+  }
+} {20 22 26 78 92 95 scan 0 sort 0}
+do_test where7-2.175.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 20 AND 22) AND a!=21)
+         OR b=1045
+         OR (g='ihgfedc' AND f GLOB 'abcde*')
+         OR a=26
+         OR (g='gfedcba' AND f GLOB 'opqrs*')
+  }
+} {20 22 26 78 92 95 scan 0 sort 0}
+do_test where7-2.176.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=49
+         OR b=58
+  }
+} {49 scan 0 sort 0}
+do_test where7-2.176.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=49
+         OR b=58
+  }
+} {49 scan 0 sort 0}
+do_test where7-2.177.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=3.0 AND d<4.0 AND d NOT NULL)
+         OR (g='jihgfed' AND f GLOB 'xyzab*')
+         OR c=32032
+         OR b=289
+         OR ((a BETWEEN 17 AND 19) AND a!=18)
+         OR ((a BETWEEN 14 AND 16) AND a!=15)
+  }
+} {3 14 16 17 19 75 94 95 96 scan 0 sort 0}
+do_test where7-2.177.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=3.0 AND d<4.0 AND d NOT NULL)
+         OR (g='jihgfed' AND f GLOB 'xyzab*')
+         OR c=32032
+         OR b=289
+         OR ((a BETWEEN 17 AND 19) AND a!=18)
+         OR ((a BETWEEN 14 AND 16) AND a!=15)
+  }
+} {3 14 16 17 19 75 94 95 96 scan 0 sort 0}
+do_test where7-2.178.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 15 AND 17) AND a!=16)
+         OR ((a BETWEEN 57 AND 59) AND a!=58)
+         OR b=33
+         OR (f GLOB '?stuv*' AND f GLOB 'rstu*')
+  }
+} {3 15 17 43 57 59 69 95 scan 0 sort 0}
+do_test where7-2.178.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 15 AND 17) AND a!=16)
+         OR ((a BETWEEN 57 AND 59) AND a!=58)
+         OR b=33
+         OR (f GLOB '?stuv*' AND f GLOB 'rstu*')
+  }
+} {3 15 17 43 57 59 69 95 scan 0 sort 0}
+do_test where7-2.179.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=828
+         OR b=341
+         OR (f GLOB '?rstu*' AND f GLOB 'qrst*')
+         OR b=902
+         OR ((a BETWEEN 64 AND 66) AND a!=65)
+         OR (d>=1.0 AND d<2.0 AND d NOT NULL)
+         OR (g='fedcbaz' AND f GLOB 'rstuv*')
+         OR b=242
+         OR (g='yxwvuts' AND f GLOB 'cdefg*')
+         OR (d>=91.0 AND d<92.0 AND d NOT NULL)
+         OR (g='qponmlk' AND f GLOB 'qrstu*')
+  }
+} {1 2 16 22 31 42 64 66 68 82 91 94 95 scan 0 sort 0}
+do_test where7-2.179.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=828
+         OR b=341
+         OR (f GLOB '?rstu*' AND f GLOB 'qrst*')
+         OR b=902
+         OR ((a BETWEEN 64 AND 66) AND a!=65)
+         OR (d>=1.0 AND d<2.0 AND d NOT NULL)
+         OR (g='fedcbaz' AND f GLOB 'rstuv*')
+         OR b=242
+         OR (g='yxwvuts' AND f GLOB 'cdefg*')
+         OR (d>=91.0 AND d<92.0 AND d NOT NULL)
+         OR (g='qponmlk' AND f GLOB 'qrstu*')
+  }
+} {1 2 16 22 31 42 64 66 68 82 91 94 95 scan 0 sort 0}
+do_test where7-2.180.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='nmlkjih' AND f GLOB 'efghi*')
+         OR b=982
+         OR b=781
+         OR ((a BETWEEN 66 AND 68) AND a!=67)
+         OR d>1e10
+         OR (d>=71.0 AND d<72.0 AND d NOT NULL)
+  }
+} {56 66 68 71 scan 0 sort 0}
+do_test where7-2.180.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='nmlkjih' AND f GLOB 'efghi*')
+         OR b=982
+         OR b=781
+         OR ((a BETWEEN 66 AND 68) AND a!=67)
+         OR d>1e10
+         OR (d>=71.0 AND d<72.0 AND d NOT NULL)
+  }
+} {56 66 68 71 scan 0 sort 0}
+do_test where7-2.181.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='kjihgfe' AND f GLOB 'rstuv*')
+         OR a=31
+         OR (f GLOB '?jklm*' AND f GLOB 'ijkl*')
+         OR ((a BETWEEN 57 AND 59) AND a!=58)
+         OR a=76
+         OR (d>=23.0 AND d<24.0 AND d NOT NULL)
+         OR (g='jihgfed' AND f GLOB 'wxyza*')
+         OR b=176
+  }
+} {8 16 23 31 34 57 59 60 69 74 76 86 scan 0 sort 0}
+do_test where7-2.181.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='kjihgfe' AND f GLOB 'rstuv*')
+         OR a=31
+         OR (f GLOB '?jklm*' AND f GLOB 'ijkl*')
+         OR ((a BETWEEN 57 AND 59) AND a!=58)
+         OR a=76
+         OR (d>=23.0 AND d<24.0 AND d NOT NULL)
+         OR (g='jihgfed' AND f GLOB 'wxyza*')
+         OR b=176
+  }
+} {8 16 23 31 34 57 59 60 69 74 76 86 scan 0 sort 0}
+do_test where7-2.182.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='ponmlkj' AND f GLOB 'vwxyz*')
+         OR ((a BETWEEN 59 AND 61) AND a!=60)
+         OR (g='nmlkjih' AND f GLOB 'defgh*')
+         OR (d>=60.0 AND d<61.0 AND d NOT NULL)
+         OR (g='wvutsrq' AND f GLOB 'mnopq*')
+         OR b=14
+         OR ((a BETWEEN 88 AND 90) AND a!=89)
+         OR f='zabcdefgh'
+  }
+} {12 25 47 51 55 59 60 61 77 88 90 scan 0 sort 0}
+do_test where7-2.182.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='ponmlkj' AND f GLOB 'vwxyz*')
+         OR ((a BETWEEN 59 AND 61) AND a!=60)
+         OR (g='nmlkjih' AND f GLOB 'defgh*')
+         OR (d>=60.0 AND d<61.0 AND d NOT NULL)
+         OR (g='wvutsrq' AND f GLOB 'mnopq*')
+         OR b=14
+         OR ((a BETWEEN 88 AND 90) AND a!=89)
+         OR f='zabcdefgh'
+  }
+} {12 25 47 51 55 59 60 61 77 88 90 scan 0 sort 0}
+do_test where7-2.183.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='tsrqpon' AND f GLOB 'zabcd*')
+         OR b=286
+         OR (d>=31.0 AND d<32.0 AND d NOT NULL)
+         OR b=91
+         OR ((a BETWEEN 43 AND 45) AND a!=44)
+  }
+} {25 26 31 43 45 scan 0 sort 0}
+do_test where7-2.183.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='tsrqpon' AND f GLOB 'zabcd*')
+         OR b=286
+         OR (d>=31.0 AND d<32.0 AND d NOT NULL)
+         OR b=91
+         OR ((a BETWEEN 43 AND 45) AND a!=44)
+  }
+} {25 26 31 43 45 scan 0 sort 0}
+do_test where7-2.184.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='lkjihgf' AND f GLOB 'nopqr*')
+         OR c=19019
+         OR (f GLOB '?xyza*' AND f GLOB 'wxyz*')
+         OR b=374
+  }
+} {22 34 48 55 56 57 65 74 100 scan 0 sort 0}
+do_test where7-2.184.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='lkjihgf' AND f GLOB 'nopqr*')
+         OR c=19019
+         OR (f GLOB '?xyza*' AND f GLOB 'wxyz*')
+         OR b=374
+  }
+} {22 34 48 55 56 57 65 74 100 scan 0 sort 0}
+do_test where7-2.185.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE g IS NULL
+         OR (g='onmlkji' AND f GLOB 'wxyza*')
+  }
+} {48 scan 0 sort 0}
+do_test where7-2.185.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE g IS NULL
+         OR (g='onmlkji' AND f GLOB 'wxyza*')
+  }
+} {48 scan 0 sort 0}
+do_test where7-2.186.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=4
+         OR b=407
+  }
+} {4 37 scan 0 sort 0}
+do_test where7-2.186.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=4
+         OR b=407
+  }
+} {4 37 scan 0 sort 0}
+do_test where7-2.187.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 66 AND 68) AND a!=67)
+         OR b=564
+         OR (f GLOB '?cdef*' AND f GLOB 'bcde*')
+         OR b=234
+         OR b=641
+         OR (f GLOB '?opqr*' AND f GLOB 'nopq*')
+         OR (d>=12.0 AND d<13.0 AND d NOT NULL)
+         OR (d>=5.0 AND d<6.0 AND d NOT NULL)
+         OR a=98
+  }
+} {1 5 12 13 27 39 53 65 66 68 79 91 98 scan 0 sort 0}
+do_test where7-2.187.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 66 AND 68) AND a!=67)
+         OR b=564
+         OR (f GLOB '?cdef*' AND f GLOB 'bcde*')
+         OR b=234
+         OR b=641
+         OR (f GLOB '?opqr*' AND f GLOB 'nopq*')
+         OR (d>=12.0 AND d<13.0 AND d NOT NULL)
+         OR (d>=5.0 AND d<6.0 AND d NOT NULL)
+         OR a=98
+  }
+} {1 5 12 13 27 39 53 65 66 68 79 91 98 scan 0 sort 0}
+do_test where7-2.188.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=73
+         OR b=44
+         OR b=539
+         OR c=11011
+         OR (g='fedcbaz' AND f GLOB 'rstuv*')
+         OR b=69
+         OR b=1001
+         OR (d>=26.0 AND d<27.0 AND d NOT NULL)
+         OR (d>=23.0 AND d<24.0 AND d NOT NULL)
+         OR (g='ihgfedc' AND f GLOB 'defgh*')
+         OR ((a BETWEEN 32 AND 34) AND a!=33)
+  }
+} {4 23 26 31 32 33 34 49 73 81 91 95 scan 0 sort 0}
+do_test where7-2.188.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=73
+         OR b=44
+         OR b=539
+         OR c=11011
+         OR (g='fedcbaz' AND f GLOB 'rstuv*')
+         OR b=69
+         OR b=1001
+         OR (d>=26.0 AND d<27.0 AND d NOT NULL)
+         OR (d>=23.0 AND d<24.0 AND d NOT NULL)
+         OR (g='ihgfedc' AND f GLOB 'defgh*')
+         OR ((a BETWEEN 32 AND 34) AND a!=33)
+  }
+} {4 23 26 31 32 33 34 49 73 81 91 95 scan 0 sort 0}
+do_test where7-2.189.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=264
+         OR b=143
+         OR a=48
+  }
+} {13 24 48 scan 0 sort 0}
+do_test where7-2.189.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=264
+         OR b=143
+         OR a=48
+  }
+} {13 24 48 scan 0 sort 0}
+do_test where7-2.190.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=1001
+         OR b=1070
+         OR ((a BETWEEN 72 AND 74) AND a!=73)
+         OR b=14
+         OR ((a BETWEEN 56 AND 58) AND a!=57)
+         OR (d>=18.0 AND d<19.0 AND d NOT NULL)
+         OR a=66
+  }
+} {18 56 58 66 72 74 91 scan 0 sort 0}
+do_test where7-2.190.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=1001
+         OR b=1070
+         OR ((a BETWEEN 72 AND 74) AND a!=73)
+         OR b=14
+         OR ((a BETWEEN 56 AND 58) AND a!=57)
+         OR (d>=18.0 AND d<19.0 AND d NOT NULL)
+         OR a=66
+  }
+} {18 56 58 66 72 74 91 scan 0 sort 0}
+do_test where7-2.191.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=23023
+         OR (d>=83.0 AND d<84.0 AND d NOT NULL)
+         OR a=66
+         OR (g='onmlkji' AND f GLOB 'zabcd*')
+         OR a=51
+         OR a=23
+         OR c=4004
+  }
+} {10 11 12 23 51 66 67 68 69 83 scan 0 sort 0}
+do_test where7-2.191.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=23023
+         OR (d>=83.0 AND d<84.0 AND d NOT NULL)
+         OR a=66
+         OR (g='onmlkji' AND f GLOB 'zabcd*')
+         OR a=51
+         OR a=23
+         OR c=4004
+  }
+} {10 11 12 23 51 66 67 68 69 83 scan 0 sort 0}
+do_test where7-2.192.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=36
+         OR (g='rqponml' AND f GLOB 'lmnop*')
+         OR a=80
+  }
+} {37 80 scan 0 sort 0}
+do_test where7-2.192.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=36
+         OR (g='rqponml' AND f GLOB 'lmnop*')
+         OR a=80
+  }
+} {37 80 scan 0 sort 0}
+do_test where7-2.193.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (f GLOB '?jklm*' AND f GLOB 'ijkl*')
+         OR ((a BETWEEN 37 AND 39) AND a!=38)
+         OR a=55
+         OR f='efghijklm'
+         OR a=8
+         OR a=80
+         OR (d>=34.0 AND d<35.0 AND d NOT NULL)
+         OR b=256
+         OR (d>=72.0 AND d<73.0 AND d NOT NULL)
+  }
+} {4 8 30 34 37 39 55 56 60 72 80 82 86 scan 0 sort 0}
+do_test where7-2.193.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (f GLOB '?jklm*' AND f GLOB 'ijkl*')
+         OR ((a BETWEEN 37 AND 39) AND a!=38)
+         OR a=55
+         OR f='efghijklm'
+         OR a=8
+         OR a=80
+         OR (d>=34.0 AND d<35.0 AND d NOT NULL)
+         OR b=256
+         OR (d>=72.0 AND d<73.0 AND d NOT NULL)
+  }
+} {4 8 30 34 37 39 55 56 60 72 80 82 86 scan 0 sort 0}
+do_test where7-2.194.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=87.0 AND d<88.0 AND d NOT NULL)
+         OR b=836
+         OR (f GLOB '?defg*' AND f GLOB 'cdef*')
+         OR (g='wvutsrq' AND f GLOB 'ijklm*')
+         OR a=91
+         OR b=594
+         OR (g='ponmlkj' AND f GLOB 'vwxyz*')
+  }
+} {2 8 28 47 54 76 80 87 91 scan 0 sort 0}
+do_test where7-2.194.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=87.0 AND d<88.0 AND d NOT NULL)
+         OR b=836
+         OR (f GLOB '?defg*' AND f GLOB 'cdef*')
+         OR (g='wvutsrq' AND f GLOB 'ijklm*')
+         OR a=91
+         OR b=594
+         OR (g='ponmlkj' AND f GLOB 'vwxyz*')
+  }
+} {2 8 28 47 54 76 80 87 91 scan 0 sort 0}
+do_test where7-2.195.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='tsrqpon' AND f GLOB 'yzabc*')
+         OR (g='wvutsrq' AND f GLOB 'mnopq*')
+         OR ((a BETWEEN 62 AND 64) AND a!=63)
+         OR c=6006
+         OR ((a BETWEEN 50 AND 52) AND a!=51)
+         OR (d>=12.0 AND d<13.0 AND d NOT NULL)
+         OR ((a BETWEEN 88 AND 90) AND a!=89)
+         OR (d>=43.0 AND d<44.0 AND d NOT NULL)
+  }
+} {12 16 17 18 24 43 50 52 62 64 88 90 scan 0 sort 0}
+do_test where7-2.195.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='tsrqpon' AND f GLOB 'yzabc*')
+         OR (g='wvutsrq' AND f GLOB 'mnopq*')
+         OR ((a BETWEEN 62 AND 64) AND a!=63)
+         OR c=6006
+         OR ((a BETWEEN 50 AND 52) AND a!=51)
+         OR (d>=12.0 AND d<13.0 AND d NOT NULL)
+         OR ((a BETWEEN 88 AND 90) AND a!=89)
+         OR (d>=43.0 AND d<44.0 AND d NOT NULL)
+  }
+} {12 16 17 18 24 43 50 52 62 64 88 90 scan 0 sort 0}
+do_test where7-2.196.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 83 AND 85) AND a!=84)
+         OR ((a BETWEEN 14 AND 16) AND a!=15)
+         OR a=13
+         OR b=121
+         OR (d>=44.0 AND d<45.0 AND d NOT NULL)
+         OR ((a BETWEEN 12 AND 14) AND a!=13)
+         OR (g='utsrqpo' AND f GLOB 'stuvw*')
+         OR b=660
+         OR b=792
+         OR (g='xwvutsr' AND f GLOB 'ghijk*')
+  }
+} {6 11 12 13 14 16 18 44 60 72 83 85 scan 0 sort 0}
+do_test where7-2.196.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 83 AND 85) AND a!=84)
+         OR ((a BETWEEN 14 AND 16) AND a!=15)
+         OR a=13
+         OR b=121
+         OR (d>=44.0 AND d<45.0 AND d NOT NULL)
+         OR ((a BETWEEN 12 AND 14) AND a!=13)
+         OR (g='utsrqpo' AND f GLOB 'stuvw*')
+         OR b=660
+         OR b=792
+         OR (g='xwvutsr' AND f GLOB 'ghijk*')
+  }
+} {6 11 12 13 14 16 18 44 60 72 83 85 scan 0 sort 0}
+do_test where7-2.197.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=1089
+         OR b=495
+         OR b=157
+         OR (f GLOB '?vwxy*' AND f GLOB 'uvwx*')
+         OR (d>=59.0 AND d<60.0 AND d NOT NULL)
+         OR (g='yxwvuts' AND f GLOB 'bcdef*')
+         OR (g='xwvutsr' AND f GLOB 'hijkl*')
+         OR (d>=1.0 AND d<2.0 AND d NOT NULL)
+         OR f='wxyzabcde'
+  }
+} {1 7 20 22 45 46 48 59 72 74 98 99 100 scan 0 sort 0}
+do_test where7-2.197.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=1089
+         OR b=495
+         OR b=157
+         OR (f GLOB '?vwxy*' AND f GLOB 'uvwx*')
+         OR (d>=59.0 AND d<60.0 AND d NOT NULL)
+         OR (g='yxwvuts' AND f GLOB 'bcdef*')
+         OR (g='xwvutsr' AND f GLOB 'hijkl*')
+         OR (d>=1.0 AND d<2.0 AND d NOT NULL)
+         OR f='wxyzabcde'
+  }
+} {1 7 20 22 45 46 48 59 72 74 98 99 100 scan 0 sort 0}
+do_test where7-2.198.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f='bcdefghij'
+         OR ((a BETWEEN 40 AND 42) AND a!=41)
+         OR (g='srqponm' AND f GLOB 'ghijk*')
+         OR b=157
+         OR b=267
+         OR c=34034
+  }
+} {1 27 32 40 42 53 79 100 scan 0 sort 0}
+do_test where7-2.198.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f='bcdefghij'
+         OR ((a BETWEEN 40 AND 42) AND a!=41)
+         OR (g='srqponm' AND f GLOB 'ghijk*')
+         OR b=157
+         OR b=267
+         OR c=34034
+  }
+} {1 27 32 40 42 53 79 100 scan 0 sort 0}
+do_test where7-2.199.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=19
+         OR a=23
+         OR c<=10
+         OR (g='lkjihgf' AND f GLOB 'opqrs*')
+  }
+} {19 23 66 scan 0 sort 0}
+do_test where7-2.199.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=19
+         OR a=23
+         OR c<=10
+         OR (g='lkjihgf' AND f GLOB 'opqrs*')
+  }
+} {19 23 66 scan 0 sort 0}
+do_test where7-2.200.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 1 AND 3) AND a!=2)
+         OR b=792
+         OR b=803
+         OR b=36
+         OR (f GLOB '?cdef*' AND f GLOB 'bcde*')
+  }
+} {1 3 27 53 72 73 79 scan 0 sort 0}
+do_test where7-2.200.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 1 AND 3) AND a!=2)
+         OR b=792
+         OR b=803
+         OR b=36
+         OR (f GLOB '?cdef*' AND f GLOB 'bcde*')
+  }
+} {1 3 27 53 72 73 79 scan 0 sort 0}
+do_test where7-2.201.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='utsrqpo' AND f GLOB 'uvwxy*')
+         OR ((a BETWEEN 71 AND 73) AND a!=72)
+         OR ((a BETWEEN 76 AND 78) AND a!=77)
+         OR f='jklmnopqr'
+         OR (g='onmlkji' AND f GLOB 'yzabc*')
+         OR b=891
+         OR a=40
+         OR (d>=67.0 AND d<68.0 AND d NOT NULL)
+  }
+} {9 20 35 40 50 61 67 71 73 76 78 81 87 scan 0 sort 0}
+do_test where7-2.201.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='utsrqpo' AND f GLOB 'uvwxy*')
+         OR ((a BETWEEN 71 AND 73) AND a!=72)
+         OR ((a BETWEEN 76 AND 78) AND a!=77)
+         OR f='jklmnopqr'
+         OR (g='onmlkji' AND f GLOB 'yzabc*')
+         OR b=891
+         OR a=40
+         OR (d>=67.0 AND d<68.0 AND d NOT NULL)
+  }
+} {9 20 35 40 50 61 67 71 73 76 78 81 87 scan 0 sort 0}
+do_test where7-2.202.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=15.0 AND d<16.0 AND d NOT NULL)
+         OR a=32
+         OR (d>=88.0 AND d<89.0 AND d NOT NULL)
+         OR a=95
+         OR d>1e10
+         OR b=429
+         OR (d>=54.0 AND d<55.0 AND d NOT NULL)
+         OR (g='jihgfed' AND f GLOB 'yzabc*')
+         OR c=10010
+         OR ((a BETWEEN 83 AND 85) AND a!=84)
+  }
+} {15 28 29 30 32 39 54 76 83 85 88 95 scan 0 sort 0}
+do_test where7-2.202.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=15.0 AND d<16.0 AND d NOT NULL)
+         OR a=32
+         OR (d>=88.0 AND d<89.0 AND d NOT NULL)
+         OR a=95
+         OR d>1e10
+         OR b=429
+         OR (d>=54.0 AND d<55.0 AND d NOT NULL)
+         OR (g='jihgfed' AND f GLOB 'yzabc*')
+         OR c=10010
+         OR ((a BETWEEN 83 AND 85) AND a!=84)
+  }
+} {15 28 29 30 32 39 54 76 83 85 88 95 scan 0 sort 0}
+do_test where7-2.203.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='xwvutsr' AND f GLOB 'defgh*')
+         OR a=22
+         OR a=26
+         OR a=81
+         OR a=53
+         OR ((a BETWEEN 92 AND 94) AND a!=93)
+         OR c=30030
+         OR (g='wvutsrq' AND f GLOB 'ijklm*')
+         OR a=82
+         OR b=594
+  }
+} {3 8 22 26 53 54 81 82 88 89 90 92 94 scan 0 sort 0}
+do_test where7-2.203.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='xwvutsr' AND f GLOB 'defgh*')
+         OR a=22
+         OR a=26
+         OR a=81
+         OR a=53
+         OR ((a BETWEEN 92 AND 94) AND a!=93)
+         OR c=30030
+         OR (g='wvutsrq' AND f GLOB 'ijklm*')
+         OR a=82
+         OR b=594
+  }
+} {3 8 22 26 53 54 81 82 88 89 90 92 94 scan 0 sort 0}
+do_test where7-2.204.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 34 AND 36) AND a!=35)
+         OR (d>=57.0 AND d<58.0 AND d NOT NULL)
+         OR (g='srqponm' AND f GLOB 'efghi*')
+         OR a=83
+         OR (g='hgfedcb' AND f GLOB 'ijklm*')
+         OR (g='kjihgfe' AND f GLOB 'qrstu*')
+         OR ((a BETWEEN 99 AND 101) AND a!=100)
+         OR (d>=12.0 AND d<13.0 AND d NOT NULL)
+         OR b=1092
+         OR (g='srqponm' AND f GLOB 'efghi*')
+         OR b=25
+  }
+} {12 30 34 36 57 68 83 86 99 scan 0 sort 0}
+do_test where7-2.204.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 34 AND 36) AND a!=35)
+         OR (d>=57.0 AND d<58.0 AND d NOT NULL)
+         OR (g='srqponm' AND f GLOB 'efghi*')
+         OR a=83
+         OR (g='hgfedcb' AND f GLOB 'ijklm*')
+         OR (g='kjihgfe' AND f GLOB 'qrstu*')
+         OR ((a BETWEEN 99 AND 101) AND a!=100)
+         OR (d>=12.0 AND d<13.0 AND d NOT NULL)
+         OR b=1092
+         OR (g='srqponm' AND f GLOB 'efghi*')
+         OR b=25
+  }
+} {12 30 34 36 57 68 83 86 99 scan 0 sort 0}
+do_test where7-2.205.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=20
+         OR b=421
+         OR (g='xwvutsr' AND f GLOB 'fghij*')
+         OR a=50
+         OR (g='qponmlk' AND f GLOB 'opqrs*')
+         OR (d>=53.0 AND d<54.0 AND d NOT NULL)
+  }
+} {5 20 40 50 53 scan 0 sort 0}
+do_test where7-2.205.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=20
+         OR b=421
+         OR (g='xwvutsr' AND f GLOB 'fghij*')
+         OR a=50
+         OR (g='qponmlk' AND f GLOB 'opqrs*')
+         OR (d>=53.0 AND d<54.0 AND d NOT NULL)
+  }
+} {5 20 40 50 53 scan 0 sort 0}
+do_test where7-2.206.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=960
+         OR (f GLOB '?opqr*' AND f GLOB 'nopq*')
+  }
+} {13 39 65 91 scan 0 sort 0}
+do_test where7-2.206.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=960
+         OR (f GLOB '?opqr*' AND f GLOB 'nopq*')
+  }
+} {13 39 65 91 scan 0 sort 0}
+do_test where7-2.207.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=891
+         OR (d>=31.0 AND d<32.0 AND d NOT NULL)
+         OR f='nopqrstuv'
+  }
+} {13 31 39 65 81 91 scan 0 sort 0}
+do_test where7-2.207.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=891
+         OR (d>=31.0 AND d<32.0 AND d NOT NULL)
+         OR f='nopqrstuv'
+  }
+} {13 31 39 65 81 91 scan 0 sort 0}
+do_test where7-2.208.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=157
+         OR b=289
+         OR ((a BETWEEN 32 AND 34) AND a!=33)
+         OR b=1001
+         OR b=707
+  }
+} {32 34 91 scan 0 sort 0}
+do_test where7-2.208.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=157
+         OR b=289
+         OR ((a BETWEEN 32 AND 34) AND a!=33)
+         OR b=1001
+         OR b=707
+  }
+} {32 34 91 scan 0 sort 0}
+do_test where7-2.209.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='edcbazy' AND f GLOB 'wxyza*')
+         OR b=957
+         OR ((a BETWEEN 48 AND 50) AND a!=49)
+  }
+} {48 50 87 100 scan 0 sort 0}
+do_test where7-2.209.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='edcbazy' AND f GLOB 'wxyza*')
+         OR b=957
+         OR ((a BETWEEN 48 AND 50) AND a!=49)
+  }
+} {48 50 87 100 scan 0 sort 0}
+do_test where7-2.210.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=40.0 AND d<41.0 AND d NOT NULL)
+         OR a=77
+         OR (d>=85.0 AND d<86.0 AND d NOT NULL)
+  }
+} {40 77 85 scan 0 sort 0}
+do_test where7-2.210.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=40.0 AND d<41.0 AND d NOT NULL)
+         OR a=77
+         OR (d>=85.0 AND d<86.0 AND d NOT NULL)
+  }
+} {40 77 85 scan 0 sort 0}
+do_test where7-2.211.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=66.0 AND d<67.0 AND d NOT NULL)
+         OR b=11
+         OR (g='fedcbaz' AND f GLOB 'stuvw*')
+         OR ((a BETWEEN 14 AND 16) AND a!=15)
+         OR (d>=38.0 AND d<39.0 AND d NOT NULL)
+         OR a=99
+  }
+} {1 14 16 38 66 96 99 scan 0 sort 0}
+do_test where7-2.211.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=66.0 AND d<67.0 AND d NOT NULL)
+         OR b=11
+         OR (g='fedcbaz' AND f GLOB 'stuvw*')
+         OR ((a BETWEEN 14 AND 16) AND a!=15)
+         OR (d>=38.0 AND d<39.0 AND d NOT NULL)
+         OR a=99
+  }
+} {1 14 16 38 66 96 99 scan 0 sort 0}
+do_test where7-2.212.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f='fghijklmn'
+         OR a=16
+         OR (g='xwvutsr' AND f GLOB 'defgh*')
+         OR ((a BETWEEN 60 AND 62) AND a!=61)
+         OR ((a BETWEEN 90 AND 92) AND a!=91)
+         OR ((a BETWEEN 9 AND 11) AND a!=10)
+         OR (d>=52.0 AND d<53.0 AND d NOT NULL)
+         OR (g='kjihgfe' AND f GLOB 'tuvwx*')
+         OR b=80
+  }
+} {3 5 9 11 16 31 52 57 60 62 71 83 90 92 scan 0 sort 0}
+do_test where7-2.212.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f='fghijklmn'
+         OR a=16
+         OR (g='xwvutsr' AND f GLOB 'defgh*')
+         OR ((a BETWEEN 60 AND 62) AND a!=61)
+         OR ((a BETWEEN 90 AND 92) AND a!=91)
+         OR ((a BETWEEN 9 AND 11) AND a!=10)
+         OR (d>=52.0 AND d<53.0 AND d NOT NULL)
+         OR (g='kjihgfe' AND f GLOB 'tuvwx*')
+         OR b=80
+  }
+} {3 5 9 11 16 31 52 57 60 62 71 83 90 92 scan 0 sort 0}
+do_test where7-2.213.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='wvutsrq' AND f GLOB 'mnopq*')
+         OR a=44
+         OR a=43
+         OR (g='lkjihgf' AND f GLOB 'opqrs*')
+         OR b=25
+  }
+} {12 43 44 66 scan 0 sort 0}
+do_test where7-2.213.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='wvutsrq' AND f GLOB 'mnopq*')
+         OR a=44
+         OR a=43
+         OR (g='lkjihgf' AND f GLOB 'opqrs*')
+         OR b=25
+  }
+} {12 43 44 66 scan 0 sort 0}
+do_test where7-2.214.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f='vwxyzabcd'
+         OR a=73
+         OR b=597
+  }
+} {21 47 73 99 scan 0 sort 0}
+do_test where7-2.214.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f='vwxyzabcd'
+         OR a=73
+         OR b=597
+  }
+} {21 47 73 99 scan 0 sort 0}
+do_test where7-2.215.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=22
+         OR ((a BETWEEN 61 AND 63) AND a!=62)
+         OR e IS NULL
+         OR a=1
+  }
+} {1 2 61 63 scan 0 sort 0}
+do_test where7-2.215.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=22
+         OR ((a BETWEEN 61 AND 63) AND a!=62)
+         OR e IS NULL
+         OR a=1
+  }
+} {1 2 61 63 scan 0 sort 0}
+do_test where7-2.216.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=3.0 AND d<4.0 AND d NOT NULL)
+         OR (g='gfedcba' AND f GLOB 'opqrs*')
+         OR b=1015
+         OR c=16016
+         OR (f GLOB '?uvwx*' AND f GLOB 'tuvw*')
+         OR f='abcdefghi'
+         OR b=605
+         OR a=63
+  }
+} {3 19 26 45 46 47 48 52 55 63 71 78 92 97 scan 0 sort 0}
+do_test where7-2.216.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=3.0 AND d<4.0 AND d NOT NULL)
+         OR (g='gfedcba' AND f GLOB 'opqrs*')
+         OR b=1015
+         OR c=16016
+         OR (f GLOB '?uvwx*' AND f GLOB 'tuvw*')
+         OR f='abcdefghi'
+         OR b=605
+         OR a=63
+  }
+} {3 19 26 45 46 47 48 52 55 63 71 78 92 97 scan 0 sort 0}
+do_test where7-2.217.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='yxwvuts' AND f GLOB 'bcdef*')
+         OR (d>=44.0 AND d<45.0 AND d NOT NULL)
+         OR b=641
+         OR b=795
+  }
+} {1 44 scan 0 sort 0}
+do_test where7-2.217.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='yxwvuts' AND f GLOB 'bcdef*')
+         OR (d>=44.0 AND d<45.0 AND d NOT NULL)
+         OR b=641
+         OR b=795
+  }
+} {1 44 scan 0 sort 0}
+do_test where7-2.218.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f='fghijklmn'
+         OR (d>=44.0 AND d<45.0 AND d NOT NULL)
+         OR (d>=15.0 AND d<16.0 AND d NOT NULL)
+  }
+} {5 15 31 44 57 83 scan 0 sort 0}
+do_test where7-2.218.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f='fghijklmn'
+         OR (d>=44.0 AND d<45.0 AND d NOT NULL)
+         OR (d>=15.0 AND d<16.0 AND d NOT NULL)
+  }
+} {5 15 31 44 57 83 scan 0 sort 0}
+do_test where7-2.219.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 99 AND 101) AND a!=100)
+         OR ((a BETWEEN 72 AND 74) AND a!=73)
+         OR ((a BETWEEN 85 AND 87) AND a!=86)
+         OR a=92
+         OR b=1100
+         OR ((a BETWEEN 98 AND 100) AND a!=99)
+         OR ((a BETWEEN 30 AND 32) AND a!=31)
+  }
+} {30 32 72 74 85 87 92 98 99 100 scan 0 sort 0}
+do_test where7-2.219.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 99 AND 101) AND a!=100)
+         OR ((a BETWEEN 72 AND 74) AND a!=73)
+         OR ((a BETWEEN 85 AND 87) AND a!=86)
+         OR a=92
+         OR b=1100
+         OR ((a BETWEEN 98 AND 100) AND a!=99)
+         OR ((a BETWEEN 30 AND 32) AND a!=31)
+  }
+} {30 32 72 74 85 87 92 98 99 100 scan 0 sort 0}
+do_test where7-2.220.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=97.0 AND d<98.0 AND d NOT NULL)
+         OR (d>=16.0 AND d<17.0 AND d NOT NULL)
+         OR (d>=12.0 AND d<13.0 AND d NOT NULL)
+         OR b=880
+         OR (d>=86.0 AND d<87.0 AND d NOT NULL)
+         OR b=1089
+         OR ((a BETWEEN 69 AND 71) AND a!=70)
+         OR f IS NULL
+         OR (f GLOB '?ghij*' AND f GLOB 'fghi*')
+  }
+} {5 12 16 31 57 69 71 80 83 86 97 99 scan 0 sort 0}
+do_test where7-2.220.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=97.0 AND d<98.0 AND d NOT NULL)
+         OR (d>=16.0 AND d<17.0 AND d NOT NULL)
+         OR (d>=12.0 AND d<13.0 AND d NOT NULL)
+         OR b=880
+         OR (d>=86.0 AND d<87.0 AND d NOT NULL)
+         OR b=1089
+         OR ((a BETWEEN 69 AND 71) AND a!=70)
+         OR f IS NULL
+         OR (f GLOB '?ghij*' AND f GLOB 'fghi*')
+  }
+} {5 12 16 31 57 69 71 80 83 86 97 99 scan 0 sort 0}
+do_test where7-2.221.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=1026
+         OR b=407
+         OR (g='srqponm' AND f GLOB 'fghij*')
+         OR b=564
+         OR c=23023
+         OR b=891
+         OR c=22022
+         OR ((a BETWEEN 22 AND 24) AND a!=23)
+         OR ((a BETWEEN 9 AND 11) AND a!=10)
+         OR (g='rqponml' AND f GLOB 'ijklm*')
+         OR (g='utsrqpo' AND f GLOB 'vwxyz*')
+  }
+} {9 11 21 22 24 31 34 37 64 65 66 67 68 69 81 scan 0 sort 0}
+do_test where7-2.221.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=1026
+         OR b=407
+         OR (g='srqponm' AND f GLOB 'fghij*')
+         OR b=564
+         OR c=23023
+         OR b=891
+         OR c=22022
+         OR ((a BETWEEN 22 AND 24) AND a!=23)
+         OR ((a BETWEEN 9 AND 11) AND a!=10)
+         OR (g='rqponml' AND f GLOB 'ijklm*')
+         OR (g='utsrqpo' AND f GLOB 'vwxyz*')
+  }
+} {9 11 21 22 24 31 34 37 64 65 66 67 68 69 81 scan 0 sort 0}
+do_test where7-2.222.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 71 AND 73) AND a!=72)
+         OR a=72
+         OR a=43
+  }
+} {43 71 72 73 scan 0 sort 0}
+do_test where7-2.222.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 71 AND 73) AND a!=72)
+         OR a=72
+         OR a=43
+  }
+} {43 71 72 73 scan 0 sort 0}
+do_test where7-2.223.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 67 AND 69) AND a!=68)
+         OR ((a BETWEEN 79 AND 81) AND a!=80)
+         OR c=18018
+         OR b=792
+         OR (g='mlkjihg' AND f GLOB 'jklmn*')
+         OR (d>=77.0 AND d<78.0 AND d NOT NULL)
+         OR (d>=8.0 AND d<9.0 AND d NOT NULL)
+         OR (d>=91.0 AND d<92.0 AND d NOT NULL)
+         OR f='uvwxyzabc'
+         OR (d>=74.0 AND d<75.0 AND d NOT NULL)
+  }
+} {8 20 46 52 53 54 61 67 69 72 74 77 79 81 91 98 scan 0 sort 0}
+do_test where7-2.223.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 67 AND 69) AND a!=68)
+         OR ((a BETWEEN 79 AND 81) AND a!=80)
+         OR c=18018
+         OR b=792
+         OR (g='mlkjihg' AND f GLOB 'jklmn*')
+         OR (d>=77.0 AND d<78.0 AND d NOT NULL)
+         OR (d>=8.0 AND d<9.0 AND d NOT NULL)
+         OR (d>=91.0 AND d<92.0 AND d NOT NULL)
+         OR f='uvwxyzabc'
+         OR (d>=74.0 AND d<75.0 AND d NOT NULL)
+  }
+} {8 20 46 52 53 54 61 67 69 72 74 77 79 81 91 98 scan 0 sort 0}
+do_test where7-2.224.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=429
+         OR (d>=33.0 AND d<34.0 AND d NOT NULL)
+         OR (f GLOB '?fghi*' AND f GLOB 'efgh*')
+         OR (g='qponmlk' AND f GLOB 'opqrs*')
+         OR b=1070
+         OR (g='vutsrqp' AND f GLOB 'rstuv*')
+  }
+} {4 17 30 33 39 40 56 82 scan 0 sort 0}
+do_test where7-2.224.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=429
+         OR (d>=33.0 AND d<34.0 AND d NOT NULL)
+         OR (f GLOB '?fghi*' AND f GLOB 'efgh*')
+         OR (g='qponmlk' AND f GLOB 'opqrs*')
+         OR b=1070
+         OR (g='vutsrqp' AND f GLOB 'rstuv*')
+  }
+} {4 17 30 33 39 40 56 82 scan 0 sort 0}
+do_test where7-2.225.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='mlkjihg' AND f GLOB 'jklmn*')
+         OR b=572
+  }
+} {52 61 scan 0 sort 0}
+do_test where7-2.225.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='mlkjihg' AND f GLOB 'jklmn*')
+         OR b=572
+  }
+} {52 61 scan 0 sort 0}
+do_test where7-2.226.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 62 AND 64) AND a!=63)
+         OR f='abcdefghi'
+         OR (g='wvutsrq' AND f GLOB 'ijklm*')
+  }
+} {8 26 52 62 64 78 scan 0 sort 0}
+do_test where7-2.226.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 62 AND 64) AND a!=63)
+         OR f='abcdefghi'
+         OR (g='wvutsrq' AND f GLOB 'ijklm*')
+  }
+} {8 26 52 62 64 78 scan 0 sort 0}
+do_test where7-2.227.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=40
+         OR ((a BETWEEN 85 AND 87) AND a!=86)
+  }
+} {40 85 87 scan 0 sort 0}
+do_test where7-2.227.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=40
+         OR ((a BETWEEN 85 AND 87) AND a!=86)
+  }
+} {40 85 87 scan 0 sort 0}
+do_test where7-2.228.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=43
+         OR ((a BETWEEN 44 AND 46) AND a!=45)
+         OR a=1
+         OR ((a BETWEEN 75 AND 77) AND a!=76)
+         OR a=75
+         OR (g='hgfedcb' AND f GLOB 'fghij*')
+         OR ((a BETWEEN 59 AND 61) AND a!=60)
+  }
+} {1 43 44 46 59 61 75 77 83 scan 0 sort 0}
+do_test where7-2.228.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=43
+         OR ((a BETWEEN 44 AND 46) AND a!=45)
+         OR a=1
+         OR ((a BETWEEN 75 AND 77) AND a!=76)
+         OR a=75
+         OR (g='hgfedcb' AND f GLOB 'fghij*')
+         OR ((a BETWEEN 59 AND 61) AND a!=60)
+  }
+} {1 43 44 46 59 61 75 77 83 scan 0 sort 0}
+do_test where7-2.229.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='gfedcba' AND f GLOB 'nopqr*')
+         OR (f GLOB '?jklm*' AND f GLOB 'ijkl*')
+         OR (g='mlkjihg' AND f GLOB 'ijklm*')
+         OR b=231
+         OR a=87
+  }
+} {8 21 34 60 86 87 91 scan 0 sort 0}
+do_test where7-2.229.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='gfedcba' AND f GLOB 'nopqr*')
+         OR (f GLOB '?jklm*' AND f GLOB 'ijkl*')
+         OR (g='mlkjihg' AND f GLOB 'ijklm*')
+         OR b=231
+         OR a=87
+  }
+} {8 21 34 60 86 87 91 scan 0 sort 0}
+do_test where7-2.230.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=77
+         OR (g='lkjihgf' AND f GLOB 'nopqr*')
+         OR (g='rqponml' AND f GLOB 'hijkl*')
+         OR c=24024
+         OR c=5005
+  }
+} {13 14 15 33 65 70 71 72 77 scan 0 sort 0}
+do_test where7-2.230.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=77
+         OR (g='lkjihgf' AND f GLOB 'nopqr*')
+         OR (g='rqponml' AND f GLOB 'hijkl*')
+         OR c=24024
+         OR c=5005
+  }
+} {13 14 15 33 65 70 71 72 77 scan 0 sort 0}
+do_test where7-2.231.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='mlkjihg' AND f GLOB 'ijklm*')
+         OR ((a BETWEEN 89 AND 91) AND a!=90)
+         OR (g='srqponm' AND f GLOB 'defgh*')
+         OR ((a BETWEEN 64 AND 66) AND a!=65)
+         OR b=682
+         OR (d>=34.0 AND d<35.0 AND d NOT NULL)
+         OR (g='lkjihgf' AND f GLOB 'nopqr*')
+         OR (d>=22.0 AND d<23.0 AND d NOT NULL)
+  }
+} {22 29 34 60 62 64 65 66 89 91 scan 0 sort 0}
+do_test where7-2.231.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='mlkjihg' AND f GLOB 'ijklm*')
+         OR ((a BETWEEN 89 AND 91) AND a!=90)
+         OR (g='srqponm' AND f GLOB 'defgh*')
+         OR ((a BETWEEN 64 AND 66) AND a!=65)
+         OR b=682
+         OR (d>=34.0 AND d<35.0 AND d NOT NULL)
+         OR (g='lkjihgf' AND f GLOB 'nopqr*')
+         OR (d>=22.0 AND d<23.0 AND d NOT NULL)
+  }
+} {22 29 34 60 62 64 65 66 89 91 scan 0 sort 0}
+do_test where7-2.232.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=212
+         OR b=121
+         OR c=2002
+         OR ((a BETWEEN 84 AND 86) AND a!=85)
+         OR (g='jihgfed' AND f GLOB 'xyzab*')
+  }
+} {4 5 6 11 75 84 86 scan 0 sort 0}
+do_test where7-2.232.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=212
+         OR b=121
+         OR c=2002
+         OR ((a BETWEEN 84 AND 86) AND a!=85)
+         OR (g='jihgfed' AND f GLOB 'xyzab*')
+  }
+} {4 5 6 11 75 84 86 scan 0 sort 0}
+do_test where7-2.233.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=55.0 AND d<56.0 AND d NOT NULL)
+         OR f='abcdefghi'
+         OR b=267
+         OR (g='ihgfedc' AND f GLOB 'abcde*')
+         OR (g='utsrqpo' AND f GLOB 'uvwxy*')
+         OR a=82
+         OR a=54
+         OR (d>=16.0 AND d<17.0 AND d NOT NULL)
+         OR b=1078
+  }
+} {16 20 26 52 54 55 78 82 98 scan 0 sort 0}
+do_test where7-2.233.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=55.0 AND d<56.0 AND d NOT NULL)
+         OR f='abcdefghi'
+         OR b=267
+         OR (g='ihgfedc' AND f GLOB 'abcde*')
+         OR (g='utsrqpo' AND f GLOB 'uvwxy*')
+         OR a=82
+         OR a=54
+         OR (d>=16.0 AND d<17.0 AND d NOT NULL)
+         OR b=1078
+  }
+} {16 20 26 52 54 55 78 82 98 scan 0 sort 0}
+do_test where7-2.234.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=93.0 AND d<94.0 AND d NOT NULL)
+         OR f='hijklmnop'
+         OR (d>=34.0 AND d<35.0 AND d NOT NULL)
+  }
+} {7 33 34 59 85 93 scan 0 sort 0}
+do_test where7-2.234.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=93.0 AND d<94.0 AND d NOT NULL)
+         OR f='hijklmnop'
+         OR (d>=34.0 AND d<35.0 AND d NOT NULL)
+  }
+} {7 33 34 59 85 93 scan 0 sort 0}
+do_test where7-2.235.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 98 AND 100) AND a!=99)
+         OR ((a BETWEEN 51 AND 53) AND a!=52)
+         OR a=18
+         OR ((a BETWEEN 31 AND 33) AND a!=32)
+         OR (d>=94.0 AND d<95.0 AND d NOT NULL)
+         OR 1000000<b
+         OR (f GLOB '?pqrs*' AND f GLOB 'opqr*')
+         OR (g='rqponml' AND f GLOB 'lmnop*')
+         OR (f GLOB '?ijkl*' AND f GLOB 'hijk*')
+  }
+} {7 14 18 31 33 37 40 51 53 59 66 85 92 94 98 100 scan 0 sort 0}
+do_test where7-2.235.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 98 AND 100) AND a!=99)
+         OR ((a BETWEEN 51 AND 53) AND a!=52)
+         OR a=18
+         OR ((a BETWEEN 31 AND 33) AND a!=32)
+         OR (d>=94.0 AND d<95.0 AND d NOT NULL)
+         OR 1000000<b
+         OR (f GLOB '?pqrs*' AND f GLOB 'opqr*')
+         OR (g='rqponml' AND f GLOB 'lmnop*')
+         OR (f GLOB '?ijkl*' AND f GLOB 'hijk*')
+  }
+} {7 14 18 31 33 37 40 51 53 59 66 85 92 94 98 100 scan 0 sort 0}
+do_test where7-2.236.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=1001
+         OR b=168
+         OR (f GLOB '?ijkl*' AND f GLOB 'hijk*')
+         OR (d>=89.0 AND d<90.0 AND d NOT NULL)
+  }
+} {7 33 59 85 89 91 scan 0 sort 0}
+do_test where7-2.236.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=1001
+         OR b=168
+         OR (f GLOB '?ijkl*' AND f GLOB 'hijk*')
+         OR (d>=89.0 AND d<90.0 AND d NOT NULL)
+  }
+} {7 33 59 85 89 91 scan 0 sort 0}
+do_test where7-2.237.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=51
+         OR (g='fedcbaz' AND f GLOB 'stuvw*')
+         OR (g='edcbazy' AND f GLOB 'uvwxy*')
+         OR b=330
+  }
+} {30 51 96 98 scan 0 sort 0}
+do_test where7-2.237.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=51
+         OR (g='fedcbaz' AND f GLOB 'stuvw*')
+         OR (g='edcbazy' AND f GLOB 'uvwxy*')
+         OR b=330
+  }
+} {30 51 96 98 scan 0 sort 0}
+do_test where7-2.238.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='kjihgfe' AND f GLOB 'tuvwx*')
+         OR b=704
+         OR a=62
+         OR f='pqrstuvwx'
+         OR b=495
+         OR c=26026
+         OR (g='kjihgfe' AND f GLOB 'qrstu*')
+         OR b<0
+         OR b=597
+  }
+} {15 41 45 62 64 67 68 71 76 77 78 93 scan 0 sort 0}
+do_test where7-2.238.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='kjihgfe' AND f GLOB 'tuvwx*')
+         OR b=704
+         OR a=62
+         OR f='pqrstuvwx'
+         OR b=495
+         OR c=26026
+         OR (g='kjihgfe' AND f GLOB 'qrstu*')
+         OR b<0
+         OR b=597
+  }
+} {15 41 45 62 64 67 68 71 76 77 78 93 scan 0 sort 0}
+do_test where7-2.239.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=2.0 AND d<3.0 AND d NOT NULL)
+         OR ((a BETWEEN 87 AND 89) AND a!=88)
+         OR b=520
+         OR ((a BETWEEN 47 AND 49) AND a!=48)
+         OR f IS NULL
+  }
+} {2 47 49 87 89 scan 0 sort 0}
+do_test where7-2.239.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=2.0 AND d<3.0 AND d NOT NULL)
+         OR ((a BETWEEN 87 AND 89) AND a!=88)
+         OR b=520
+         OR ((a BETWEEN 47 AND 49) AND a!=48)
+         OR f IS NULL
+  }
+} {2 47 49 87 89 scan 0 sort 0}
+do_test where7-2.240.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=14014
+         OR (g='fedcbaz' AND f GLOB 'rstuv*')
+         OR b=572
+         OR c=15015
+  }
+} {40 41 42 43 44 45 52 95 scan 0 sort 0}
+do_test where7-2.240.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=14014
+         OR (g='fedcbaz' AND f GLOB 'rstuv*')
+         OR b=572
+         OR c=15015
+  }
+} {40 41 42 43 44 45 52 95 scan 0 sort 0}
+do_test where7-2.241.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (f GLOB '?efgh*' AND f GLOB 'defg*')
+         OR b=850
+         OR (g='lkjihgf' AND f GLOB 'nopqr*')
+         OR ((a BETWEEN 15 AND 17) AND a!=16)
+         OR b=88
+         OR f='hijklmnop'
+         OR b=806
+         OR (d>=46.0 AND d<47.0 AND d NOT NULL)
+         OR b=88
+  }
+} {3 7 8 15 17 29 33 46 55 59 65 81 85 scan 0 sort 0}
+do_test where7-2.241.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (f GLOB '?efgh*' AND f GLOB 'defg*')
+         OR b=850
+         OR (g='lkjihgf' AND f GLOB 'nopqr*')
+         OR ((a BETWEEN 15 AND 17) AND a!=16)
+         OR b=88
+         OR f='hijklmnop'
+         OR b=806
+         OR (d>=46.0 AND d<47.0 AND d NOT NULL)
+         OR b=88
+  }
+} {3 7 8 15 17 29 33 46 55 59 65 81 85 scan 0 sort 0}
+do_test where7-2.242.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=817
+         OR (d>=55.0 AND d<56.0 AND d NOT NULL)
+         OR a=36
+         OR b=960
+         OR (d>=63.0 AND d<64.0 AND d NOT NULL)
+         OR b=374
+         OR b=938
+         OR b=773
+         OR (g='jihgfed' AND f GLOB 'zabcd*')
+         OR (g='mlkjihg' AND f GLOB 'ghijk*')
+  }
+} {34 36 55 58 63 77 scan 0 sort 0}
+do_test where7-2.242.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=817
+         OR (d>=55.0 AND d<56.0 AND d NOT NULL)
+         OR a=36
+         OR b=960
+         OR (d>=63.0 AND d<64.0 AND d NOT NULL)
+         OR b=374
+         OR b=938
+         OR b=773
+         OR (g='jihgfed' AND f GLOB 'zabcd*')
+         OR (g='mlkjihg' AND f GLOB 'ghijk*')
+  }
+} {34 36 55 58 63 77 scan 0 sort 0}
+do_test where7-2.243.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='kjihgfe' AND f GLOB 'rstuv*')
+         OR b=146
+  }
+} {69 scan 0 sort 0}
+do_test where7-2.243.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='kjihgfe' AND f GLOB 'rstuv*')
+         OR b=146
+  }
+} {69 scan 0 sort 0}
+do_test where7-2.244.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f='pqrstuvwx'
+         OR ((a BETWEEN 6 AND 8) AND a!=7)
+         OR ((a BETWEEN 76 AND 78) AND a!=77)
+         OR b=704
+         OR a=18
+  }
+} {6 8 15 18 41 64 67 76 78 93 scan 0 sort 0}
+do_test where7-2.244.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f='pqrstuvwx'
+         OR ((a BETWEEN 6 AND 8) AND a!=7)
+         OR ((a BETWEEN 76 AND 78) AND a!=77)
+         OR b=704
+         OR a=18
+  }
+} {6 8 15 18 41 64 67 76 78 93 scan 0 sort 0}
+do_test where7-2.245.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (f GLOB '?uvwx*' AND f GLOB 'tuvw*')
+         OR b=399
+         OR b=1004
+         OR c=16016
+         OR (d>=31.0 AND d<32.0 AND d NOT NULL)
+         OR b=671
+         OR a=25
+         OR a=30
+         OR a=8
+         OR (d>=5.0 AND d<6.0 AND d NOT NULL)
+  }
+} {5 8 19 25 30 31 45 46 47 48 61 71 97 scan 0 sort 0}
+do_test where7-2.245.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (f GLOB '?uvwx*' AND f GLOB 'tuvw*')
+         OR b=399
+         OR b=1004
+         OR c=16016
+         OR (d>=31.0 AND d<32.0 AND d NOT NULL)
+         OR b=671
+         OR a=25
+         OR a=30
+         OR a=8
+         OR (d>=5.0 AND d<6.0 AND d NOT NULL)
+  }
+} {5 8 19 25 30 31 45 46 47 48 61 71 97 scan 0 sort 0}
+do_test where7-2.246.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=561
+         OR ((a BETWEEN 28 AND 30) AND a!=29)
+         OR b=594
+         OR ((a BETWEEN 39 AND 41) AND a!=40)
+         OR b=861
+         OR (d>=90.0 AND d<91.0 AND d NOT NULL)
+         OR b=949
+         OR (g='utsrqpo' AND f GLOB 'stuvw*')
+         OR (g='nmlkjih' AND f GLOB 'cdefg*')
+  }
+} {18 28 30 39 41 51 54 90 scan 0 sort 0}
+do_test where7-2.246.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=561
+         OR ((a BETWEEN 28 AND 30) AND a!=29)
+         OR b=594
+         OR ((a BETWEEN 39 AND 41) AND a!=40)
+         OR b=861
+         OR (d>=90.0 AND d<91.0 AND d NOT NULL)
+         OR b=949
+         OR (g='utsrqpo' AND f GLOB 'stuvw*')
+         OR (g='nmlkjih' AND f GLOB 'cdefg*')
+  }
+} {18 28 30 39 41 51 54 90 scan 0 sort 0}
+do_test where7-2.247.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='xwvutsr' AND f GLOB 'hijkl*')
+         OR a=83
+         OR c=26026
+         OR a=49
+         OR a=57
+         OR c=23023
+         OR f='uvwxyzabc'
+  }
+} {7 20 46 49 57 67 68 69 72 76 77 78 83 98 scan 0 sort 0}
+do_test where7-2.247.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='xwvutsr' AND f GLOB 'hijkl*')
+         OR a=83
+         OR c=26026
+         OR a=49
+         OR a=57
+         OR c=23023
+         OR f='uvwxyzabc'
+  }
+} {7 20 46 49 57 67 68 69 72 76 77 78 83 98 scan 0 sort 0}
+do_test where7-2.248.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE d>1e10
+         OR b=355
+         OR f='stuvwxyza'
+         OR b=22
+  }
+} {2 18 44 70 96 scan 0 sort 0}
+do_test where7-2.248.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE d>1e10
+         OR b=355
+         OR f='stuvwxyza'
+         OR b=22
+  }
+} {2 18 44 70 96 scan 0 sort 0}
+do_test where7-2.249.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=451
+         OR (f GLOB '?jklm*' AND f GLOB 'ijkl*')
+  }
+} {8 34 41 60 86 scan 0 sort 0}
+do_test where7-2.249.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=451
+         OR (f GLOB '?jklm*' AND f GLOB 'ijkl*')
+  }
+} {8 34 41 60 86 scan 0 sort 0}
+do_test where7-2.250.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=47
+         OR (f GLOB '?cdef*' AND f GLOB 'bcde*')
+  }
+} {1 27 53 79 scan 0 sort 0}
+do_test where7-2.250.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=47
+         OR (f GLOB '?cdef*' AND f GLOB 'bcde*')
+  }
+} {1 27 53 79 scan 0 sort 0}
+do_test where7-2.251.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=1037
+         OR (g='wvutsrq' AND f GLOB 'mnopq*')
+         OR ((a BETWEEN 66 AND 68) AND a!=67)
+         OR b=344
+         OR (d>=86.0 AND d<87.0 AND d NOT NULL)
+  }
+} {12 66 68 86 scan 0 sort 0}
+do_test where7-2.251.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=1037
+         OR (g='wvutsrq' AND f GLOB 'mnopq*')
+         OR ((a BETWEEN 66 AND 68) AND a!=67)
+         OR b=344
+         OR (d>=86.0 AND d<87.0 AND d NOT NULL)
+  }
+} {12 66 68 86 scan 0 sort 0}
+do_test where7-2.252.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=506
+         OR ((a BETWEEN 20 AND 22) AND a!=21)
+         OR (g='hgfedcb' AND f GLOB 'ijklm*')
+         OR b=429
+         OR b=275
+  }
+} {20 22 25 39 46 86 scan 0 sort 0}
+do_test where7-2.252.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=506
+         OR ((a BETWEEN 20 AND 22) AND a!=21)
+         OR (g='hgfedcb' AND f GLOB 'ijklm*')
+         OR b=429
+         OR b=275
+  }
+} {20 22 25 39 46 86 scan 0 sort 0}
+do_test where7-2.253.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 60 AND 62) AND a!=61)
+         OR a=28
+         OR b=443
+         OR b=363
+         OR (d>=28.0 AND d<29.0 AND d NOT NULL)
+         OR a=60
+         OR b=80
+         OR (g='ponmlkj' AND f GLOB 'vwxyz*')
+         OR b=616
+  }
+} {28 33 47 56 60 62 scan 0 sort 0}
+do_test where7-2.253.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 60 AND 62) AND a!=61)
+         OR a=28
+         OR b=443
+         OR b=363
+         OR (d>=28.0 AND d<29.0 AND d NOT NULL)
+         OR a=60
+         OR b=80
+         OR (g='ponmlkj' AND f GLOB 'vwxyz*')
+         OR b=616
+  }
+} {28 33 47 56 60 62 scan 0 sort 0}
+do_test where7-2.254.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=33.0 AND d<34.0 AND d NOT NULL)
+         OR b=660
+  }
+} {33 60 scan 0 sort 0}
+do_test where7-2.254.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=33.0 AND d<34.0 AND d NOT NULL)
+         OR b=660
+  }
+} {33 60 scan 0 sort 0}
+do_test where7-2.255.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='xwvutsr' AND f GLOB 'hijkl*')
+         OR a=43
+         OR ((a BETWEEN 64 AND 66) AND a!=65)
+         OR b=586
+         OR c=17017
+         OR (g='onmlkji' AND f GLOB 'yzabc*')
+         OR (f GLOB '?wxyz*' AND f GLOB 'vwxy*')
+         OR a=87
+         OR b=968
+  }
+} {7 21 43 47 49 50 51 64 66 73 87 88 99 scan 0 sort 0}
+do_test where7-2.255.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='xwvutsr' AND f GLOB 'hijkl*')
+         OR a=43
+         OR ((a BETWEEN 64 AND 66) AND a!=65)
+         OR b=586
+         OR c=17017
+         OR (g='onmlkji' AND f GLOB 'yzabc*')
+         OR (f GLOB '?wxyz*' AND f GLOB 'vwxy*')
+         OR a=87
+         OR b=968
+  }
+} {7 21 43 47 49 50 51 64 66 73 87 88 99 scan 0 sort 0}
+do_test where7-2.256.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f='klmnopqrs'
+         OR b=982
+         OR b=575
+         OR b=110
+         OR b=99
+  }
+} {9 10 36 62 88 scan 0 sort 0}
+do_test where7-2.256.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f='klmnopqrs'
+         OR b=982
+         OR b=575
+         OR b=110
+         OR b=99
+  }
+} {9 10 36 62 88 scan 0 sort 0}
+do_test where7-2.257.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='rqponml' AND f GLOB 'jklmn*')
+         OR (g='xwvutsr' AND f GLOB 'efghi*')
+         OR c>=34035
+         OR b=850
+         OR ((a BETWEEN 32 AND 34) AND a!=33)
+         OR b=924
+         OR (d>=37.0 AND d<38.0 AND d NOT NULL)
+         OR (d>=78.0 AND d<79.0 AND d NOT NULL)
+         OR b=355
+         OR (d>=56.0 AND d<57.0 AND d NOT NULL)
+         OR (d>=86.0 AND d<87.0 AND d NOT NULL)
+  }
+} {4 32 34 35 37 56 78 84 86 scan 0 sort 0}
+do_test where7-2.257.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='rqponml' AND f GLOB 'jklmn*')
+         OR (g='xwvutsr' AND f GLOB 'efghi*')
+         OR c>=34035
+         OR b=850
+         OR ((a BETWEEN 32 AND 34) AND a!=33)
+         OR b=924
+         OR (d>=37.0 AND d<38.0 AND d NOT NULL)
+         OR (d>=78.0 AND d<79.0 AND d NOT NULL)
+         OR b=355
+         OR (d>=56.0 AND d<57.0 AND d NOT NULL)
+         OR (d>=86.0 AND d<87.0 AND d NOT NULL)
+  }
+} {4 32 34 35 37 56 78 84 86 scan 0 sort 0}
+do_test where7-2.258.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=46.0 AND d<47.0 AND d NOT NULL)
+         OR b=982
+         OR ((a BETWEEN 81 AND 83) AND a!=82)
+         OR b=374
+  }
+} {34 46 81 83 scan 0 sort 0}
+do_test where7-2.258.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=46.0 AND d<47.0 AND d NOT NULL)
+         OR b=982
+         OR ((a BETWEEN 81 AND 83) AND a!=82)
+         OR b=374
+  }
+} {34 46 81 83 scan 0 sort 0}
+do_test where7-2.259.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 87 AND 89) AND a!=88)
+         OR b=814
+         OR (d>=19.0 AND d<20.0 AND d NOT NULL)
+  }
+} {19 74 87 89 scan 0 sort 0}
+do_test where7-2.259.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 87 AND 89) AND a!=88)
+         OR b=814
+         OR (d>=19.0 AND d<20.0 AND d NOT NULL)
+  }
+} {19 74 87 89 scan 0 sort 0}
+do_test where7-2.260.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='qponmlk' AND f GLOB 'nopqr*')
+         OR (d>=12.0 AND d<13.0 AND d NOT NULL)
+         OR b=993
+  }
+} {12 39 scan 0 sort 0}
+do_test where7-2.260.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='qponmlk' AND f GLOB 'nopqr*')
+         OR (d>=12.0 AND d<13.0 AND d NOT NULL)
+         OR b=993
+  }
+} {12 39 scan 0 sort 0}
+do_test where7-2.261.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=234
+         OR a=22
+         OR b=289
+         OR b=795
+         OR (g='gfedcba' AND f GLOB 'nopqr*')
+         OR b=242
+         OR a=59
+         OR b=1045
+         OR (d>=8.0 AND d<9.0 AND d NOT NULL)
+  }
+} {8 22 59 91 95 scan 0 sort 0}
+do_test where7-2.261.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=234
+         OR a=22
+         OR b=289
+         OR b=795
+         OR (g='gfedcba' AND f GLOB 'nopqr*')
+         OR b=242
+         OR a=59
+         OR b=1045
+         OR (d>=8.0 AND d<9.0 AND d NOT NULL)
+  }
+} {8 22 59 91 95 scan 0 sort 0}
+do_test where7-2.262.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=245
+         OR (g='wvutsrq' AND f GLOB 'klmno*')
+         OR c=3003
+         OR (f GLOB '?bcde*' AND f GLOB 'abcd*')
+         OR ((a BETWEEN 68 AND 70) AND a!=69)
+         OR (d>=1.0 AND d<2.0 AND d NOT NULL)
+         OR (d>=33.0 AND d<34.0 AND d NOT NULL)
+         OR ((a BETWEEN 71 AND 73) AND a!=72)
+  }
+} {1 7 8 9 10 26 33 52 68 70 71 73 78 scan 0 sort 0}
+do_test where7-2.262.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=245
+         OR (g='wvutsrq' AND f GLOB 'klmno*')
+         OR c=3003
+         OR (f GLOB '?bcde*' AND f GLOB 'abcd*')
+         OR ((a BETWEEN 68 AND 70) AND a!=69)
+         OR (d>=1.0 AND d<2.0 AND d NOT NULL)
+         OR (d>=33.0 AND d<34.0 AND d NOT NULL)
+         OR ((a BETWEEN 71 AND 73) AND a!=72)
+  }
+} {1 7 8 9 10 26 33 52 68 70 71 73 78 scan 0 sort 0}
+do_test where7-2.263.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='hgfedcb' AND f GLOB 'jklmn*')
+         OR b=220
+         OR b=443
+         OR (f GLOB '?tuvw*' AND f GLOB 'stuv*')
+         OR a=62
+         OR (f GLOB '?tuvw*' AND f GLOB 'stuv*')
+         OR b=1023
+         OR a=100
+         OR (g='nmlkjih' AND f GLOB 'defgh*')
+         OR (d>=97.0 AND d<98.0 AND d NOT NULL)
+  }
+} {18 20 44 55 62 70 87 93 96 97 100 scan 0 sort 0}
+do_test where7-2.263.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='hgfedcb' AND f GLOB 'jklmn*')
+         OR b=220
+         OR b=443
+         OR (f GLOB '?tuvw*' AND f GLOB 'stuv*')
+         OR a=62
+         OR (f GLOB '?tuvw*' AND f GLOB 'stuv*')
+         OR b=1023
+         OR a=100
+         OR (g='nmlkjih' AND f GLOB 'defgh*')
+         OR (d>=97.0 AND d<98.0 AND d NOT NULL)
+  }
+} {18 20 44 55 62 70 87 93 96 97 100 scan 0 sort 0}
+do_test where7-2.264.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=11011
+         OR f='tuvwxyzab'
+         OR (g='ponmlkj' AND f GLOB 'vwxyz*')
+         OR (g='hgfedcb' AND f GLOB 'ghijk*')
+  }
+} {19 31 32 33 45 47 71 84 97 scan 0 sort 0}
+do_test where7-2.264.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=11011
+         OR f='tuvwxyzab'
+         OR (g='ponmlkj' AND f GLOB 'vwxyz*')
+         OR (g='hgfedcb' AND f GLOB 'ghijk*')
+  }
+} {19 31 32 33 45 47 71 84 97 scan 0 sort 0}
+do_test where7-2.265.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 93 AND 95) AND a!=94)
+         OR a=79
+         OR (d>=39.0 AND d<40.0 AND d NOT NULL)
+         OR b=462
+  }
+} {39 42 79 93 95 scan 0 sort 0}
+do_test where7-2.265.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 93 AND 95) AND a!=94)
+         OR a=79
+         OR (d>=39.0 AND d<40.0 AND d NOT NULL)
+         OR b=462
+  }
+} {39 42 79 93 95 scan 0 sort 0}
+do_test where7-2.266.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=33.0 AND d<34.0 AND d NOT NULL)
+         OR b=146
+         OR 1000000<b
+         OR b=99
+         OR ((a BETWEEN 75 AND 77) AND a!=76)
+  }
+} {9 33 75 77 scan 0 sort 0}
+do_test where7-2.266.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=33.0 AND d<34.0 AND d NOT NULL)
+         OR b=146
+         OR 1000000<b
+         OR b=99
+         OR ((a BETWEEN 75 AND 77) AND a!=76)
+  }
+} {9 33 75 77 scan 0 sort 0}
+do_test where7-2.267.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=935
+         OR b=473
+         OR a=28
+         OR (d>=20.0 AND d<21.0 AND d NOT NULL)
+         OR ((a BETWEEN 62 AND 64) AND a!=63)
+         OR a=62
+         OR b=619
+         OR a=82
+         OR (d>=67.0 AND d<68.0 AND d NOT NULL)
+         OR c=14014
+         OR (d>=43.0 AND d<44.0 AND d NOT NULL)
+  }
+} {20 28 40 41 42 43 62 64 67 82 85 scan 0 sort 0}
+do_test where7-2.267.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=935
+         OR b=473
+         OR a=28
+         OR (d>=20.0 AND d<21.0 AND d NOT NULL)
+         OR ((a BETWEEN 62 AND 64) AND a!=63)
+         OR a=62
+         OR b=619
+         OR a=82
+         OR (d>=67.0 AND d<68.0 AND d NOT NULL)
+         OR c=14014
+         OR (d>=43.0 AND d<44.0 AND d NOT NULL)
+  }
+} {20 28 40 41 42 43 62 64 67 82 85 scan 0 sort 0}
+do_test where7-2.268.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='ponmlkj' AND f GLOB 'uvwxy*')
+         OR b=443
+         OR b=33
+         OR b=762
+         OR b=575
+         OR c=16016
+         OR (g='kjihgfe' AND f GLOB 'uvwxy*')
+         OR ((a BETWEEN 41 AND 43) AND a!=42)
+         OR (g='qponmlk' AND f GLOB 'opqrs*')
+         OR b=1092
+  }
+} {3 40 41 43 46 47 48 72 scan 0 sort 0}
+do_test where7-2.268.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='ponmlkj' AND f GLOB 'uvwxy*')
+         OR b=443
+         OR b=33
+         OR b=762
+         OR b=575
+         OR c=16016
+         OR (g='kjihgfe' AND f GLOB 'uvwxy*')
+         OR ((a BETWEEN 41 AND 43) AND a!=42)
+         OR (g='qponmlk' AND f GLOB 'opqrs*')
+         OR b=1092
+  }
+} {3 40 41 43 46 47 48 72 scan 0 sort 0}
+do_test where7-2.269.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=806
+         OR b=872
+         OR (g='ihgfedc' AND f GLOB 'cdefg*')
+         OR f='uvwxyzabc'
+         OR b=748
+         OR b=586
+         OR ((a BETWEEN 15 AND 17) AND a!=16)
+         OR (g='gfedcba' AND f GLOB 'klmno*')
+         OR ((a BETWEEN 32 AND 34) AND a!=33)
+         OR (g='vutsrqp' AND f GLOB 'pqrst*')
+         OR b=891
+  }
+} {15 17 20 32 34 46 68 72 80 81 88 98 scan 0 sort 0}
+do_test where7-2.269.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=806
+         OR b=872
+         OR (g='ihgfedc' AND f GLOB 'cdefg*')
+         OR f='uvwxyzabc'
+         OR b=748
+         OR b=586
+         OR ((a BETWEEN 15 AND 17) AND a!=16)
+         OR (g='gfedcba' AND f GLOB 'klmno*')
+         OR ((a BETWEEN 32 AND 34) AND a!=33)
+         OR (g='vutsrqp' AND f GLOB 'pqrst*')
+         OR b=891
+  }
+} {15 17 20 32 34 46 68 72 80 81 88 98 scan 0 sort 0}
+do_test where7-2.270.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=693
+         OR f='fghijklmn'
+         OR (g='rqponml' AND f GLOB 'hijkl*')
+         OR (g='qponmlk' AND f GLOB 'nopqr*')
+         OR ((a BETWEEN 71 AND 73) AND a!=72)
+         OR a=96
+  }
+} {5 31 33 39 57 63 71 73 83 96 scan 0 sort 0}
+do_test where7-2.270.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=693
+         OR f='fghijklmn'
+         OR (g='rqponml' AND f GLOB 'hijkl*')
+         OR (g='qponmlk' AND f GLOB 'nopqr*')
+         OR ((a BETWEEN 71 AND 73) AND a!=72)
+         OR a=96
+  }
+} {5 31 33 39 57 63 71 73 83 96 scan 0 sort 0}
+do_test where7-2.271.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='hgfedcb' AND f GLOB 'ijklm*')
+         OR b=451
+         OR ((a BETWEEN 96 AND 98) AND a!=97)
+         OR ((a BETWEEN 97 AND 99) AND a!=98)
+         OR a=84
+  }
+} {41 84 86 96 97 98 99 scan 0 sort 0}
+do_test where7-2.271.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='hgfedcb' AND f GLOB 'ijklm*')
+         OR b=451
+         OR ((a BETWEEN 96 AND 98) AND a!=97)
+         OR ((a BETWEEN 97 AND 99) AND a!=98)
+         OR a=84
+  }
+} {41 84 86 96 97 98 99 scan 0 sort 0}
+do_test where7-2.272.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='nmlkjih' AND f GLOB 'bcdef*')
+         OR (d>=63.0 AND d<64.0 AND d NOT NULL)
+         OR a=75
+         OR b=960
+         OR (g='tsrqpon' AND f GLOB 'yzabc*')
+         OR b=616
+         OR b=330
+         OR ((a BETWEEN 16 AND 18) AND a!=17)
+         OR a=26
+         OR (g='kjihgfe' AND f GLOB 'uvwxy*')
+  }
+} {16 18 24 26 30 53 56 63 72 75 scan 0 sort 0}
+do_test where7-2.272.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='nmlkjih' AND f GLOB 'bcdef*')
+         OR (d>=63.0 AND d<64.0 AND d NOT NULL)
+         OR a=75
+         OR b=960
+         OR (g='tsrqpon' AND f GLOB 'yzabc*')
+         OR b=616
+         OR b=330
+         OR ((a BETWEEN 16 AND 18) AND a!=17)
+         OR a=26
+         OR (g='kjihgfe' AND f GLOB 'uvwxy*')
+  }
+} {16 18 24 26 30 53 56 63 72 75 scan 0 sort 0}
+do_test where7-2.273.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=762
+         OR (g='nmlkjih' AND f GLOB 'bcdef*')
+  }
+} {53 scan 0 sort 0}
+do_test where7-2.273.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=762
+         OR (g='nmlkjih' AND f GLOB 'bcdef*')
+  }
+} {53 scan 0 sort 0}
+do_test where7-2.274.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=14
+         OR a=23
+         OR b=748
+         OR b=407
+         OR (d>=4.0 AND d<5.0 AND d NOT NULL)
+         OR (d>=87.0 AND d<88.0 AND d NOT NULL)
+         OR b=979
+         OR ((a BETWEEN 15 AND 17) AND a!=16)
+  }
+} {4 15 17 23 37 68 87 89 scan 0 sort 0}
+do_test where7-2.274.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=14
+         OR a=23
+         OR b=748
+         OR b=407
+         OR (d>=4.0 AND d<5.0 AND d NOT NULL)
+         OR (d>=87.0 AND d<88.0 AND d NOT NULL)
+         OR b=979
+         OR ((a BETWEEN 15 AND 17) AND a!=16)
+  }
+} {4 15 17 23 37 68 87 89 scan 0 sort 0}
+do_test where7-2.275.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 36 AND 38) AND a!=37)
+         OR a=92
+  }
+} {36 38 92 scan 0 sort 0}
+do_test where7-2.275.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 36 AND 38) AND a!=37)
+         OR a=92
+  }
+} {36 38 92 scan 0 sort 0}
+do_test where7-2.276.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=14014
+         OR b=927
+         OR b=176
+         OR ((a BETWEEN 34 AND 36) AND a!=35)
+         OR b=220
+         OR (g='tsrqpon' AND f GLOB 'yzabc*')
+         OR a=4
+  }
+} {4 16 20 24 34 36 40 41 42 scan 0 sort 0}
+do_test where7-2.276.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=14014
+         OR b=927
+         OR b=176
+         OR ((a BETWEEN 34 AND 36) AND a!=35)
+         OR b=220
+         OR (g='tsrqpon' AND f GLOB 'yzabc*')
+         OR a=4
+  }
+} {4 16 20 24 34 36 40 41 42 scan 0 sort 0}
+do_test where7-2.277.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=29
+         OR (g='utsrqpo' AND f GLOB 'tuvwx*')
+         OR b=979
+         OR b=275
+         OR ((a BETWEEN 56 AND 58) AND a!=57)
+         OR (d>=41.0 AND d<42.0 AND d NOT NULL)
+         OR b=539
+         OR a=87
+  }
+} {19 25 29 41 49 56 58 87 89 scan 0 sort 0}
+do_test where7-2.277.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=29
+         OR (g='utsrqpo' AND f GLOB 'tuvwx*')
+         OR b=979
+         OR b=275
+         OR ((a BETWEEN 56 AND 58) AND a!=57)
+         OR (d>=41.0 AND d<42.0 AND d NOT NULL)
+         OR b=539
+         OR a=87
+  }
+} {19 25 29 41 49 56 58 87 89 scan 0 sort 0}
+do_test where7-2.278.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 43 AND 45) AND a!=44)
+         OR (g='kjihgfe' AND f GLOB 'rstuv*')
+         OR (g='nmlkjih' AND f GLOB 'fghij*')
+         OR ((a BETWEEN 57 AND 59) AND a!=58)
+         OR f='fghijklmn'
+         OR (g='rqponml' AND f GLOB 'klmno*')
+         OR ((a BETWEEN 4 AND 6) AND a!=5)
+         OR a=74
+         OR ((a BETWEEN 7 AND 9) AND a!=8)
+  }
+} {4 5 6 7 9 31 36 43 45 57 59 69 74 83 scan 0 sort 0}
+do_test where7-2.278.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 43 AND 45) AND a!=44)
+         OR (g='kjihgfe' AND f GLOB 'rstuv*')
+         OR (g='nmlkjih' AND f GLOB 'fghij*')
+         OR ((a BETWEEN 57 AND 59) AND a!=58)
+         OR f='fghijklmn'
+         OR (g='rqponml' AND f GLOB 'klmno*')
+         OR ((a BETWEEN 4 AND 6) AND a!=5)
+         OR a=74
+         OR ((a BETWEEN 7 AND 9) AND a!=8)
+  }
+} {4 5 6 7 9 31 36 43 45 57 59 69 74 83 scan 0 sort 0}
+do_test where7-2.279.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 80 AND 82) AND a!=81)
+         OR (f GLOB '?jklm*' AND f GLOB 'ijkl*')
+         OR (d>=42.0 AND d<43.0 AND d NOT NULL)
+         OR ((a BETWEEN 49 AND 51) AND a!=50)
+         OR (g='ihgfedc' AND f GLOB 'bcdef*')
+  }
+} {8 34 42 49 51 60 79 80 82 86 scan 0 sort 0}
+do_test where7-2.279.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 80 AND 82) AND a!=81)
+         OR (f GLOB '?jklm*' AND f GLOB 'ijkl*')
+         OR (d>=42.0 AND d<43.0 AND d NOT NULL)
+         OR ((a BETWEEN 49 AND 51) AND a!=50)
+         OR (g='ihgfedc' AND f GLOB 'bcdef*')
+  }
+} {8 34 42 49 51 60 79 80 82 86 scan 0 sort 0}
+do_test where7-2.280.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 58 AND 60) AND a!=59)
+         OR b=696
+         OR f='tuvwxyzab'
+         OR b=374
+         OR b=110
+         OR a=90
+  }
+} {10 19 34 45 58 60 71 90 97 scan 0 sort 0}
+do_test where7-2.280.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 58 AND 60) AND a!=59)
+         OR b=696
+         OR f='tuvwxyzab'
+         OR b=374
+         OR b=110
+         OR a=90
+  }
+} {10 19 34 45 58 60 71 90 97 scan 0 sort 0}
+do_test where7-2.281.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='xwvutsr' AND f GLOB 'ghijk*')
+         OR c=23023
+         OR b=377
+         OR b=858
+         OR (g='nmlkjih' AND f GLOB 'fghij*')
+  }
+} {6 57 67 68 69 78 scan 0 sort 0}
+do_test where7-2.281.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='xwvutsr' AND f GLOB 'ghijk*')
+         OR c=23023
+         OR b=377
+         OR b=858
+         OR (g='nmlkjih' AND f GLOB 'fghij*')
+  }
+} {6 57 67 68 69 78 scan 0 sort 0}
+do_test where7-2.282.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=38.0 AND d<39.0 AND d NOT NULL)
+         OR b=322
+         OR (d>=19.0 AND d<20.0 AND d NOT NULL)
+         OR (g='fedcbaz' AND f GLOB 'pqrst*')
+         OR (g='onmlkji' AND f GLOB 'wxyza*')
+         OR b=432
+         OR b=55
+         OR a=53
+         OR (d>=74.0 AND d<75.0 AND d NOT NULL)
+         OR (f GLOB '?ijkl*' AND f GLOB 'hijk*')
+         OR b=25
+  }
+} {5 7 19 33 38 48 53 59 74 85 93 scan 0 sort 0}
+do_test where7-2.282.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=38.0 AND d<39.0 AND d NOT NULL)
+         OR b=322
+         OR (d>=19.0 AND d<20.0 AND d NOT NULL)
+         OR (g='fedcbaz' AND f GLOB 'pqrst*')
+         OR (g='onmlkji' AND f GLOB 'wxyza*')
+         OR b=432
+         OR b=55
+         OR a=53
+         OR (d>=74.0 AND d<75.0 AND d NOT NULL)
+         OR (f GLOB '?ijkl*' AND f GLOB 'hijk*')
+         OR b=25
+  }
+} {5 7 19 33 38 48 53 59 74 85 93 scan 0 sort 0}
+do_test where7-2.283.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=484
+         OR (g='jihgfed' AND f GLOB 'wxyza*')
+         OR b=616
+         OR c=5005
+         OR ((a BETWEEN 27 AND 29) AND a!=28)
+  }
+} {13 14 15 27 29 44 56 74 scan 0 sort 0}
+do_test where7-2.283.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=484
+         OR (g='jihgfed' AND f GLOB 'wxyza*')
+         OR b=616
+         OR c=5005
+         OR ((a BETWEEN 27 AND 29) AND a!=28)
+  }
+} {13 14 15 27 29 44 56 74 scan 0 sort 0}
+do_test where7-2.284.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=916
+         OR (f GLOB '?opqr*' AND f GLOB 'nopq*')
+         OR b=1048
+         OR c=6006
+         OR b=762
+         OR (f GLOB '?pqrs*' AND f GLOB 'opqr*')
+         OR ((a BETWEEN 59 AND 61) AND a!=60)
+         OR b=751
+         OR (d>=73.0 AND d<74.0 AND d NOT NULL)
+  }
+} {13 14 16 17 18 39 40 59 61 65 66 73 91 92 scan 0 sort 0}
+do_test where7-2.284.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=916
+         OR (f GLOB '?opqr*' AND f GLOB 'nopq*')
+         OR b=1048
+         OR c=6006
+         OR b=762
+         OR (f GLOB '?pqrs*' AND f GLOB 'opqr*')
+         OR ((a BETWEEN 59 AND 61) AND a!=60)
+         OR b=751
+         OR (d>=73.0 AND d<74.0 AND d NOT NULL)
+  }
+} {13 14 16 17 18 39 40 59 61 65 66 73 91 92 scan 0 sort 0}
+do_test where7-2.285.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=32.0 AND d<33.0 AND d NOT NULL)
+         OR b=927
+         OR b=275
+         OR b=396
+         OR c=4004
+         OR (g='vutsrqp' AND f GLOB 'opqrs*')
+         OR b=319
+         OR ((a BETWEEN 83 AND 85) AND a!=84)
+         OR a=3
+         OR ((a BETWEEN 73 AND 75) AND a!=74)
+  }
+} {3 10 11 12 14 25 29 32 36 73 75 83 85 scan 0 sort 0}
+do_test where7-2.285.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=32.0 AND d<33.0 AND d NOT NULL)
+         OR b=927
+         OR b=275
+         OR b=396
+         OR c=4004
+         OR (g='vutsrqp' AND f GLOB 'opqrs*')
+         OR b=319
+         OR ((a BETWEEN 83 AND 85) AND a!=84)
+         OR a=3
+         OR ((a BETWEEN 73 AND 75) AND a!=74)
+  }
+} {3 10 11 12 14 25 29 32 36 73 75 83 85 scan 0 sort 0}
+do_test where7-2.286.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='wvutsrq' AND f GLOB 'lmnop*')
+         OR b=718
+         OR f='vwxyzabcd'
+         OR (d>=98.0 AND d<99.0 AND d NOT NULL)
+         OR (g='kjihgfe' AND f GLOB 'tuvwx*')
+         OR (f GLOB '?uvwx*' AND f GLOB 'tuvw*')
+         OR (d>=22.0 AND d<23.0 AND d NOT NULL)
+         OR ((a BETWEEN 66 AND 68) AND a!=67)
+         OR (g='mlkjihg' AND f GLOB 'jklmn*')
+         OR (f GLOB '?klmn*' AND f GLOB 'jklm*')
+         OR (d>=11.0 AND d<12.0 AND d NOT NULL)
+  }
+} {9 11 19 21 22 35 45 47 61 66 68 71 73 87 97 98 99 scan 0 sort 0}
+do_test where7-2.286.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='wvutsrq' AND f GLOB 'lmnop*')
+         OR b=718
+         OR f='vwxyzabcd'
+         OR (d>=98.0 AND d<99.0 AND d NOT NULL)
+         OR (g='kjihgfe' AND f GLOB 'tuvwx*')
+         OR (f GLOB '?uvwx*' AND f GLOB 'tuvw*')
+         OR (d>=22.0 AND d<23.0 AND d NOT NULL)
+         OR ((a BETWEEN 66 AND 68) AND a!=67)
+         OR (g='mlkjihg' AND f GLOB 'jklmn*')
+         OR (f GLOB '?klmn*' AND f GLOB 'jklm*')
+         OR (d>=11.0 AND d<12.0 AND d NOT NULL)
+  }
+} {9 11 19 21 22 35 45 47 61 66 68 71 73 87 97 98 99 scan 0 sort 0}
+do_test where7-2.287.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=187
+         OR b=1056
+         OR b=861
+         OR b=1081
+         OR b=572
+         OR (d>=4.0 AND d<5.0 AND d NOT NULL)
+         OR a=11
+         OR ((a BETWEEN 99 AND 101) AND a!=100)
+         OR a=89
+         OR b=421
+  }
+} {4 11 17 52 89 96 99 scan 0 sort 0}
+do_test where7-2.287.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=187
+         OR b=1056
+         OR b=861
+         OR b=1081
+         OR b=572
+         OR (d>=4.0 AND d<5.0 AND d NOT NULL)
+         OR a=11
+         OR ((a BETWEEN 99 AND 101) AND a!=100)
+         OR a=89
+         OR b=421
+  }
+} {4 11 17 52 89 96 99 scan 0 sort 0}
+do_test where7-2.288.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=231
+         OR b=388
+         OR d<0.0
+         OR (d>=39.0 AND d<40.0 AND d NOT NULL)
+         OR b=1045
+         OR (d>=12.0 AND d<13.0 AND d NOT NULL)
+  }
+} {12 21 39 95 scan 0 sort 0}
+do_test where7-2.288.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=231
+         OR b=388
+         OR d<0.0
+         OR (d>=39.0 AND d<40.0 AND d NOT NULL)
+         OR b=1045
+         OR (d>=12.0 AND d<13.0 AND d NOT NULL)
+  }
+} {12 21 39 95 scan 0 sort 0}
+do_test where7-2.289.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=528
+         OR (d>=53.0 AND d<54.0 AND d NOT NULL)
+         OR b=762
+  }
+} {48 53 scan 0 sort 0}
+do_test where7-2.289.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=528
+         OR (d>=53.0 AND d<54.0 AND d NOT NULL)
+         OR b=762
+  }
+} {48 53 scan 0 sort 0}
+do_test where7-2.290.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f='stuvwxyza'
+         OR ((a BETWEEN 90 AND 92) AND a!=91)
+         OR b=916
+  }
+} {18 44 70 90 92 96 scan 0 sort 0}
+do_test where7-2.290.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f='stuvwxyza'
+         OR ((a BETWEEN 90 AND 92) AND a!=91)
+         OR b=916
+  }
+} {18 44 70 90 92 96 scan 0 sort 0}
+do_test where7-2.291.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=52.0 AND d<53.0 AND d NOT NULL)
+         OR (d>=76.0 AND d<77.0 AND d NOT NULL)
+         OR ((a BETWEEN 96 AND 98) AND a!=97)
+         OR (d>=19.0 AND d<20.0 AND d NOT NULL)
+         OR (d>=4.0 AND d<5.0 AND d NOT NULL)
+  }
+} {4 19 52 76 96 98 scan 0 sort 0}
+do_test where7-2.291.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=52.0 AND d<53.0 AND d NOT NULL)
+         OR (d>=76.0 AND d<77.0 AND d NOT NULL)
+         OR ((a BETWEEN 96 AND 98) AND a!=97)
+         OR (d>=19.0 AND d<20.0 AND d NOT NULL)
+         OR (d>=4.0 AND d<5.0 AND d NOT NULL)
+  }
+} {4 19 52 76 96 98 scan 0 sort 0}
+do_test where7-2.292.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=102
+         OR c=6006
+         OR b=231
+         OR b=212
+         OR (d>=36.0 AND d<37.0 AND d NOT NULL)
+         OR (g='gfedcba' AND f GLOB 'klmno*')
+         OR c=30030
+         OR (g='onmlkji' AND f GLOB 'abcde*')
+  }
+} {16 17 18 21 36 52 88 89 90 scan 0 sort 0}
+do_test where7-2.292.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=102
+         OR c=6006
+         OR b=231
+         OR b=212
+         OR (d>=36.0 AND d<37.0 AND d NOT NULL)
+         OR (g='gfedcba' AND f GLOB 'klmno*')
+         OR c=30030
+         OR (g='onmlkji' AND f GLOB 'abcde*')
+  }
+} {16 17 18 21 36 52 88 89 90 scan 0 sort 0}
+do_test where7-2.293.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=47
+         OR a=82
+         OR c=25025
+         OR ((a BETWEEN 40 AND 42) AND a!=41)
+         OR f='qrstuvwxy'
+         OR a=5
+  }
+} {5 16 40 42 47 68 73 74 75 82 94 scan 0 sort 0}
+do_test where7-2.293.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=47
+         OR a=82
+         OR c=25025
+         OR ((a BETWEEN 40 AND 42) AND a!=41)
+         OR f='qrstuvwxy'
+         OR a=5
+  }
+} {5 16 40 42 47 68 73 74 75 82 94 scan 0 sort 0}
+do_test where7-2.294.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=429
+         OR a=30
+         OR f='vwxyzabcd'
+         OR b=762
+         OR a=60
+         OR (g='srqponm' AND f GLOB 'efghi*')
+         OR (g='xwvutsr' AND f GLOB 'efghi*')
+  }
+} {4 21 30 39 47 60 73 99 scan 0 sort 0}
+do_test where7-2.294.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=429
+         OR a=30
+         OR f='vwxyzabcd'
+         OR b=762
+         OR a=60
+         OR (g='srqponm' AND f GLOB 'efghi*')
+         OR (g='xwvutsr' AND f GLOB 'efghi*')
+  }
+} {4 21 30 39 47 60 73 99 scan 0 sort 0}
+do_test where7-2.295.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='mlkjihg' AND f GLOB 'ghijk*')
+         OR a=3
+         OR (d>=63.0 AND d<64.0 AND d NOT NULL)
+         OR (f GLOB '?opqr*' AND f GLOB 'nopq*')
+         OR b=498
+         OR a=100
+         OR (d>=31.0 AND d<32.0 AND d NOT NULL)
+         OR (g='kjihgfe' AND f GLOB 'rstuv*')
+         OR a=69
+  }
+} {3 13 31 39 58 63 65 69 91 100 scan 0 sort 0}
+do_test where7-2.295.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='mlkjihg' AND f GLOB 'ghijk*')
+         OR a=3
+         OR (d>=63.0 AND d<64.0 AND d NOT NULL)
+         OR (f GLOB '?opqr*' AND f GLOB 'nopq*')
+         OR b=498
+         OR a=100
+         OR (d>=31.0 AND d<32.0 AND d NOT NULL)
+         OR (g='kjihgfe' AND f GLOB 'rstuv*')
+         OR a=69
+  }
+} {3 13 31 39 58 63 65 69 91 100 scan 0 sort 0}
+do_test where7-2.296.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='ihgfedc' AND f GLOB 'efghi*')
+         OR b=300
+         OR (d>=7.0 AND d<8.0 AND d NOT NULL)
+         OR b=58
+         OR ((a BETWEEN 55 AND 57) AND a!=56)
+         OR (g='nmlkjih' AND f GLOB 'defgh*')
+         OR b=286
+         OR b=234
+         OR ((a BETWEEN 43 AND 45) AND a!=44)
+         OR f='ghijklmno'
+         OR (d>=26.0 AND d<27.0 AND d NOT NULL)
+  }
+} {6 7 26 32 43 45 55 57 58 82 84 scan 0 sort 0}
+do_test where7-2.296.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='ihgfedc' AND f GLOB 'efghi*')
+         OR b=300
+         OR (d>=7.0 AND d<8.0 AND d NOT NULL)
+         OR b=58
+         OR ((a BETWEEN 55 AND 57) AND a!=56)
+         OR (g='nmlkjih' AND f GLOB 'defgh*')
+         OR b=286
+         OR b=234
+         OR ((a BETWEEN 43 AND 45) AND a!=44)
+         OR f='ghijklmno'
+         OR (d>=26.0 AND d<27.0 AND d NOT NULL)
+  }
+} {6 7 26 32 43 45 55 57 58 82 84 scan 0 sort 0}
+do_test where7-2.297.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=95
+         OR ((a BETWEEN 72 AND 74) AND a!=73)
+         OR ((a BETWEEN 23 AND 25) AND a!=24)
+         OR b=594
+         OR (f GLOB '?ijkl*' AND f GLOB 'hijk*')
+         OR ((a BETWEEN 37 AND 39) AND a!=38)
+         OR ((a BETWEEN 56 AND 58) AND a!=57)
+         OR ((a BETWEEN 18 AND 20) AND a!=19)
+         OR (d>=45.0 AND d<46.0 AND d NOT NULL)
+         OR (f GLOB '?ghij*' AND f GLOB 'fghi*')
+         OR ((a BETWEEN 53 AND 55) AND a!=54)
+  }
+} {5 7 18 20 23 25 31 33 37 39 45 53 54 55 56 57 58 59 72 74 83 85 95 scan 0 sort 0}
+do_test where7-2.297.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=95
+         OR ((a BETWEEN 72 AND 74) AND a!=73)
+         OR ((a BETWEEN 23 AND 25) AND a!=24)
+         OR b=594
+         OR (f GLOB '?ijkl*' AND f GLOB 'hijk*')
+         OR ((a BETWEEN 37 AND 39) AND a!=38)
+         OR ((a BETWEEN 56 AND 58) AND a!=57)
+         OR ((a BETWEEN 18 AND 20) AND a!=19)
+         OR (d>=45.0 AND d<46.0 AND d NOT NULL)
+         OR (f GLOB '?ghij*' AND f GLOB 'fghi*')
+         OR ((a BETWEEN 53 AND 55) AND a!=54)
+  }
+} {5 7 18 20 23 25 31 33 37 39 45 53 54 55 56 57 58 59 72 74 83 85 95 scan 0 sort 0}
+do_test where7-2.298.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=949
+         OR (g='xwvutsr' AND f GLOB 'fghij*')
+         OR (g='vutsrqp' AND f GLOB 'opqrs*')
+  }
+} {5 14 scan 0 sort 0}
+do_test where7-2.298.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=949
+         OR (g='xwvutsr' AND f GLOB 'fghij*')
+         OR (g='vutsrqp' AND f GLOB 'opqrs*')
+  }
+} {5 14 scan 0 sort 0}
+do_test where7-2.299.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=960
+         OR a=44
+         OR (g='xwvutsr' AND f GLOB 'ghijk*')
+         OR a=39
+         OR b=828
+         OR ((a BETWEEN 3 AND 5) AND a!=4)
+         OR d<0.0
+         OR b=770
+         OR (f GLOB '?tuvw*' AND f GLOB 'stuv*')
+         OR b=594
+         OR ((a BETWEEN 89 AND 91) AND a!=90)
+  }
+} {3 5 6 18 39 44 54 70 89 91 96 scan 0 sort 0}
+do_test where7-2.299.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=960
+         OR a=44
+         OR (g='xwvutsr' AND f GLOB 'ghijk*')
+         OR a=39
+         OR b=828
+         OR ((a BETWEEN 3 AND 5) AND a!=4)
+         OR d<0.0
+         OR b=770
+         OR (f GLOB '?tuvw*' AND f GLOB 'stuv*')
+         OR b=594
+         OR ((a BETWEEN 89 AND 91) AND a!=90)
+  }
+} {3 5 6 18 39 44 54 70 89 91 96 scan 0 sort 0}
+do_test where7-2.300.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 40 AND 42) AND a!=41)
+         OR b=198
+         OR a=51
+         OR b=1056
+         OR b=748
+         OR ((a BETWEEN 9 AND 11) AND a!=10)
+  }
+} {9 11 18 40 42 51 68 96 scan 0 sort 0}
+do_test where7-2.300.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 40 AND 42) AND a!=41)
+         OR b=198
+         OR a=51
+         OR b=1056
+         OR b=748
+         OR ((a BETWEEN 9 AND 11) AND a!=10)
+  }
+} {9 11 18 40 42 51 68 96 scan 0 sort 0}
+do_test where7-2.301.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=1081
+         OR ((a BETWEEN 66 AND 68) AND a!=67)
+         OR b=1004
+         OR (g='gfedcba' AND f GLOB 'nopqr*')
+         OR ((a BETWEEN 29 AND 31) AND a!=30)
+         OR b=660
+         OR b=957
+         OR b=869
+  }
+} {29 31 60 66 68 79 87 91 scan 0 sort 0}
+do_test where7-2.301.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=1081
+         OR ((a BETWEEN 66 AND 68) AND a!=67)
+         OR b=1004
+         OR (g='gfedcba' AND f GLOB 'nopqr*')
+         OR ((a BETWEEN 29 AND 31) AND a!=30)
+         OR b=660
+         OR b=957
+         OR b=869
+  }
+} {29 31 60 66 68 79 87 91 scan 0 sort 0}
+do_test where7-2.302.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=927
+         OR c=12012
+         OR f='yzabcdefg'
+         OR b=880
+         OR a=63
+         OR (g='ponmlkj' AND f GLOB 'stuvw*')
+         OR (g='mlkjihg' AND f GLOB 'ghijk*')
+         OR (g='hgfedcb' AND f GLOB 'ijklm*')
+  }
+} {24 34 35 36 44 50 58 63 76 80 86 scan 0 sort 0}
+do_test where7-2.302.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=927
+         OR c=12012
+         OR f='yzabcdefg'
+         OR b=880
+         OR a=63
+         OR (g='ponmlkj' AND f GLOB 'stuvw*')
+         OR (g='mlkjihg' AND f GLOB 'ghijk*')
+         OR (g='hgfedcb' AND f GLOB 'ijklm*')
+  }
+} {24 34 35 36 44 50 58 63 76 80 86 scan 0 sort 0}
+do_test where7-2.303.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=69
+         OR b=1103
+         OR (f GLOB '?bcde*' AND f GLOB 'abcd*')
+         OR f='wxyzabcde'
+         OR (f GLOB '?tuvw*' AND f GLOB 'stuv*')
+         OR (g='gfedcba' AND f GLOB 'klmno*')
+         OR f='pqrstuvwx'
+         OR (g='jihgfed' AND f GLOB 'vwxyz*')
+         OR a=59
+         OR b=946
+  }
+} {15 18 22 26 41 44 48 52 59 67 69 70 73 74 78 86 88 93 96 100 scan 0 sort 0}
+do_test where7-2.303.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=69
+         OR b=1103
+         OR (f GLOB '?bcde*' AND f GLOB 'abcd*')
+         OR f='wxyzabcde'
+         OR (f GLOB '?tuvw*' AND f GLOB 'stuv*')
+         OR (g='gfedcba' AND f GLOB 'klmno*')
+         OR f='pqrstuvwx'
+         OR (g='jihgfed' AND f GLOB 'vwxyz*')
+         OR a=59
+         OR b=946
+  }
+} {15 18 22 26 41 44 48 52 59 67 69 70 73 74 78 86 88 93 96 100 scan 0 sort 0}
+do_test where7-2.304.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=47.0 AND d<48.0 AND d NOT NULL)
+         OR (g='jihgfed' AND f GLOB 'xyzab*')
+         OR a=68
+         OR ((a BETWEEN 14 AND 16) AND a!=15)
+  }
+} {14 16 47 68 75 scan 0 sort 0}
+do_test where7-2.304.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=47.0 AND d<48.0 AND d NOT NULL)
+         OR (g='jihgfed' AND f GLOB 'xyzab*')
+         OR a=68
+         OR ((a BETWEEN 14 AND 16) AND a!=15)
+  }
+} {14 16 47 68 75 scan 0 sort 0}
+do_test where7-2.305.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=10.0 AND d<11.0 AND d NOT NULL)
+         OR (g='lkjihgf' AND f GLOB 'lmnop*')
+  }
+} {10 63 scan 0 sort 0}
+do_test where7-2.305.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=10.0 AND d<11.0 AND d NOT NULL)
+         OR (g='lkjihgf' AND f GLOB 'lmnop*')
+  }
+} {10 63 scan 0 sort 0}
+do_test where7-2.306.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=32
+         OR ((a BETWEEN 15 AND 17) AND a!=16)
+         OR ((a BETWEEN 92 AND 94) AND a!=93)
+         OR (d>=86.0 AND d<87.0 AND d NOT NULL)
+         OR c=7007
+         OR b=968
+         OR (d>=18.0 AND d<19.0 AND d NOT NULL)
+  }
+} {15 17 18 19 20 21 32 86 88 92 94 scan 0 sort 0}
+do_test where7-2.306.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=32
+         OR ((a BETWEEN 15 AND 17) AND a!=16)
+         OR ((a BETWEEN 92 AND 94) AND a!=93)
+         OR (d>=86.0 AND d<87.0 AND d NOT NULL)
+         OR c=7007
+         OR b=968
+         OR (d>=18.0 AND d<19.0 AND d NOT NULL)
+  }
+} {15 17 18 19 20 21 32 86 88 92 94 scan 0 sort 0}
+do_test where7-2.307.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f='cdefghijk'
+         OR b=1103
+  }
+} {2 28 54 80 scan 0 sort 0}
+do_test where7-2.307.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f='cdefghijk'
+         OR b=1103
+  }
+} {2 28 54 80 scan 0 sort 0}
+do_test where7-2.308.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 21 AND 23) AND a!=22)
+         OR (g='vutsrqp' AND f GLOB 'opqrs*')
+         OR c=14014
+         OR b=990
+         OR (g='nmlkjih' AND f GLOB 'efghi*')
+         OR c=14014
+         OR (g='vutsrqp' AND f GLOB 'nopqr*')
+         OR b=740
+         OR c=3003
+  }
+} {7 8 9 13 14 21 23 40 41 42 56 90 scan 0 sort 0}
+do_test where7-2.308.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 21 AND 23) AND a!=22)
+         OR (g='vutsrqp' AND f GLOB 'opqrs*')
+         OR c=14014
+         OR b=990
+         OR (g='nmlkjih' AND f GLOB 'efghi*')
+         OR c=14014
+         OR (g='vutsrqp' AND f GLOB 'nopqr*')
+         OR b=740
+         OR c=3003
+  }
+} {7 8 9 13 14 21 23 40 41 42 56 90 scan 0 sort 0}
+do_test where7-2.309.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=60.0 AND d<61.0 AND d NOT NULL)
+         OR a=67
+         OR b=135
+         OR f='bcdefghij'
+         OR b=924
+         OR (d>=22.0 AND d<23.0 AND d NOT NULL)
+  }
+} {1 22 27 53 60 67 79 84 scan 0 sort 0}
+do_test where7-2.309.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=60.0 AND d<61.0 AND d NOT NULL)
+         OR a=67
+         OR b=135
+         OR f='bcdefghij'
+         OR b=924
+         OR (d>=22.0 AND d<23.0 AND d NOT NULL)
+  }
+} {1 22 27 53 60 67 79 84 scan 0 sort 0}
+do_test where7-2.310.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=96
+         OR a=13
+  }
+} {13 96 scan 0 sort 0}
+do_test where7-2.310.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=96
+         OR a=13
+  }
+} {13 96 scan 0 sort 0}
+do_test where7-2.311.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 34 AND 36) AND a!=35)
+         OR (d>=50.0 AND d<51.0 AND d NOT NULL)
+         OR ((a BETWEEN 35 AND 37) AND a!=36)
+         OR a=49
+         OR a=38
+         OR b=157
+         OR a=4
+         OR b=311
+         OR ((a BETWEEN 97 AND 99) AND a!=98)
+         OR (g='tsrqpon' AND f GLOB 'bcdef*')
+         OR b=396
+  }
+} {4 27 34 35 36 37 38 49 50 97 99 scan 0 sort 0}
+do_test where7-2.311.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 34 AND 36) AND a!=35)
+         OR (d>=50.0 AND d<51.0 AND d NOT NULL)
+         OR ((a BETWEEN 35 AND 37) AND a!=36)
+         OR a=49
+         OR a=38
+         OR b=157
+         OR a=4
+         OR b=311
+         OR ((a BETWEEN 97 AND 99) AND a!=98)
+         OR (g='tsrqpon' AND f GLOB 'bcdef*')
+         OR b=396
+  }
+} {4 27 34 35 36 37 38 49 50 97 99 scan 0 sort 0}
+do_test where7-2.312.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=82
+         OR b=333
+         OR (f GLOB '?xyza*' AND f GLOB 'wxyz*')
+         OR b=99
+         OR a=63
+         OR a=35
+         OR b=176
+  }
+} {9 16 22 35 48 63 74 82 100 scan 0 sort 0}
+do_test where7-2.312.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=82
+         OR b=333
+         OR (f GLOB '?xyza*' AND f GLOB 'wxyz*')
+         OR b=99
+         OR a=63
+         OR a=35
+         OR b=176
+  }
+} {9 16 22 35 48 63 74 82 100 scan 0 sort 0}
+do_test where7-2.313.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=90
+         OR a=81
+         OR ((a BETWEEN 51 AND 53) AND a!=52)
+         OR f='mnopqrstu'
+         OR b=927
+         OR b=311
+         OR a=34
+         OR b=715
+         OR f='rstuvwxyz'
+  }
+} {12 17 34 38 43 51 53 64 65 69 81 90 95 scan 0 sort 0}
+do_test where7-2.313.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=90
+         OR a=81
+         OR ((a BETWEEN 51 AND 53) AND a!=52)
+         OR f='mnopqrstu'
+         OR b=927
+         OR b=311
+         OR a=34
+         OR b=715
+         OR f='rstuvwxyz'
+  }
+} {12 17 34 38 43 51 53 64 65 69 81 90 95 scan 0 sort 0}
+do_test where7-2.314.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=484
+         OR ((a BETWEEN 10 AND 12) AND a!=11)
+         OR f='lmnopqrst'
+         OR ((a BETWEEN 37 AND 39) AND a!=38)
+         OR (d>=64.0 AND d<65.0 AND d NOT NULL)
+         OR (d>=7.0 AND d<8.0 AND d NOT NULL)
+         OR b<0
+         OR b=231
+         OR a=14
+  }
+} {7 10 11 12 14 21 37 39 44 63 64 89 scan 0 sort 0}
+do_test where7-2.314.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=484
+         OR ((a BETWEEN 10 AND 12) AND a!=11)
+         OR f='lmnopqrst'
+         OR ((a BETWEEN 37 AND 39) AND a!=38)
+         OR (d>=64.0 AND d<65.0 AND d NOT NULL)
+         OR (d>=7.0 AND d<8.0 AND d NOT NULL)
+         OR b<0
+         OR b=231
+         OR a=14
+  }
+} {7 10 11 12 14 21 37 39 44 63 64 89 scan 0 sort 0}
+do_test where7-2.315.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=905
+         OR f='hijklmnop'
+         OR (d>=45.0 AND d<46.0 AND d NOT NULL)
+         OR (d>=26.0 AND d<27.0 AND d NOT NULL)
+         OR (g='ihgfedc' AND f GLOB 'cdefg*')
+         OR (g='utsrqpo' AND f GLOB 'wxyza*')
+         OR (f GLOB '?mnop*' AND f GLOB 'lmno*')
+         OR b=817
+         OR (d>=20.0 AND d<21.0 AND d NOT NULL)
+  }
+} {7 11 20 22 26 33 37 45 59 63 80 85 89 scan 0 sort 0}
+do_test where7-2.315.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=905
+         OR f='hijklmnop'
+         OR (d>=45.0 AND d<46.0 AND d NOT NULL)
+         OR (d>=26.0 AND d<27.0 AND d NOT NULL)
+         OR (g='ihgfedc' AND f GLOB 'cdefg*')
+         OR (g='utsrqpo' AND f GLOB 'wxyza*')
+         OR (f GLOB '?mnop*' AND f GLOB 'lmno*')
+         OR b=817
+         OR (d>=20.0 AND d<21.0 AND d NOT NULL)
+  }
+} {7 11 20 22 26 33 37 45 59 63 80 85 89 scan 0 sort 0}
+do_test where7-2.316.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='hgfedcb' AND f GLOB 'hijkl*')
+         OR b=311
+         OR (d>=61.0 AND d<62.0 AND d NOT NULL)
+         OR a=48
+         OR (g='ponmlkj' AND f GLOB 'rstuv*')
+         OR (g='ponmlkj' AND f GLOB 'vwxyz*')
+         OR c=32032
+         OR f='opqrstuvw'
+         OR b=300
+         OR b=1001
+         OR ((a BETWEEN 94 AND 96) AND a!=95)
+  }
+} {14 40 43 47 48 61 66 85 91 92 94 95 96 scan 0 sort 0}
+do_test where7-2.316.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='hgfedcb' AND f GLOB 'hijkl*')
+         OR b=311
+         OR (d>=61.0 AND d<62.0 AND d NOT NULL)
+         OR a=48
+         OR (g='ponmlkj' AND f GLOB 'rstuv*')
+         OR (g='ponmlkj' AND f GLOB 'vwxyz*')
+         OR c=32032
+         OR f='opqrstuvw'
+         OR b=300
+         OR b=1001
+         OR ((a BETWEEN 94 AND 96) AND a!=95)
+  }
+} {14 40 43 47 48 61 66 85 91 92 94 95 96 scan 0 sort 0}
+do_test where7-2.317.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=95.0 AND d<96.0 AND d NOT NULL)
+         OR b=1070
+         OR (g='edcbazy' AND f GLOB 'vwxyz*')
+         OR (d>=45.0 AND d<46.0 AND d NOT NULL)
+         OR (d>=22.0 AND d<23.0 AND d NOT NULL)
+         OR a=22
+         OR (d>=11.0 AND d<12.0 AND d NOT NULL)
+         OR (d>=61.0 AND d<62.0 AND d NOT NULL)
+         OR f='tuvwxyzab'
+         OR a=72
+         OR ((a BETWEEN 53 AND 55) AND a!=54)
+  }
+} {11 19 22 45 53 55 61 71 72 95 97 99 scan 0 sort 0}
+do_test where7-2.317.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=95.0 AND d<96.0 AND d NOT NULL)
+         OR b=1070
+         OR (g='edcbazy' AND f GLOB 'vwxyz*')
+         OR (d>=45.0 AND d<46.0 AND d NOT NULL)
+         OR (d>=22.0 AND d<23.0 AND d NOT NULL)
+         OR a=22
+         OR (d>=11.0 AND d<12.0 AND d NOT NULL)
+         OR (d>=61.0 AND d<62.0 AND d NOT NULL)
+         OR f='tuvwxyzab'
+         OR a=72
+         OR ((a BETWEEN 53 AND 55) AND a!=54)
+  }
+} {11 19 22 45 53 55 61 71 72 95 97 99 scan 0 sort 0}
+do_test where7-2.318.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=8.0 AND d<9.0 AND d NOT NULL)
+         OR (g='vutsrqp' AND f GLOB 'qrstu*')
+         OR a=21
+         OR b=1026
+         OR ((a BETWEEN 34 AND 36) AND a!=35)
+         OR b=473
+  }
+} {8 16 21 34 36 43 scan 0 sort 0}
+do_test where7-2.318.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=8.0 AND d<9.0 AND d NOT NULL)
+         OR (g='vutsrqp' AND f GLOB 'qrstu*')
+         OR a=21
+         OR b=1026
+         OR ((a BETWEEN 34 AND 36) AND a!=35)
+         OR b=473
+  }
+} {8 16 21 34 36 43 scan 0 sort 0}
+do_test where7-2.319.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 71 AND 73) AND a!=72)
+         OR ((a BETWEEN 43 AND 45) AND a!=44)
+         OR a=100
+         OR a=29
+         OR c=15015
+         OR a=87
+         OR (g='gfedcba' AND f GLOB 'klmno*')
+  }
+} {29 43 44 45 71 73 87 88 100 scan 0 sort 0}
+do_test where7-2.319.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 71 AND 73) AND a!=72)
+         OR ((a BETWEEN 43 AND 45) AND a!=44)
+         OR a=100
+         OR a=29
+         OR c=15015
+         OR a=87
+         OR (g='gfedcba' AND f GLOB 'klmno*')
+  }
+} {29 43 44 45 71 73 87 88 100 scan 0 sort 0}
+do_test where7-2.320.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=1.0 AND d<2.0 AND d NOT NULL)
+         OR b=542
+         OR b=638
+  }
+} {1 58 scan 0 sort 0}
+do_test where7-2.320.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=1.0 AND d<2.0 AND d NOT NULL)
+         OR b=542
+         OR b=638
+  }
+} {1 58 scan 0 sort 0}
+do_test where7-2.321.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 5 AND 7) AND a!=6)
+         OR b=1070
+         OR a=91
+         OR b=1015
+         OR (d>=12.0 AND d<13.0 AND d NOT NULL)
+         OR (g='ihgfedc' AND f GLOB 'cdefg*')
+         OR ((a BETWEEN 91 AND 93) AND a!=92)
+  }
+} {5 7 12 80 91 93 scan 0 sort 0}
+do_test where7-2.321.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 5 AND 7) AND a!=6)
+         OR b=1070
+         OR a=91
+         OR b=1015
+         OR (d>=12.0 AND d<13.0 AND d NOT NULL)
+         OR (g='ihgfedc' AND f GLOB 'cdefg*')
+         OR ((a BETWEEN 91 AND 93) AND a!=92)
+  }
+} {5 7 12 80 91 93 scan 0 sort 0}
+do_test where7-2.322.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=7
+         OR (g='yxwvuts' AND f GLOB 'bcdef*')
+         OR b=1015
+         OR b=839
+         OR (g='rqponml' AND f GLOB 'klmno*')
+         OR b=410
+         OR (f GLOB '?defg*' AND f GLOB 'cdef*')
+         OR a=71
+  }
+} {1 2 7 28 36 54 71 80 scan 0 sort 0}
+do_test where7-2.322.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=7
+         OR (g='yxwvuts' AND f GLOB 'bcdef*')
+         OR b=1015
+         OR b=839
+         OR (g='rqponml' AND f GLOB 'klmno*')
+         OR b=410
+         OR (f GLOB '?defg*' AND f GLOB 'cdef*')
+         OR a=71
+  }
+} {1 2 7 28 36 54 71 80 scan 0 sort 0}
+do_test where7-2.323.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=880
+         OR b=982
+         OR a=52
+         OR (g='onmlkji' AND f GLOB 'abcde*')
+         OR a=24
+         OR ((a BETWEEN 47 AND 49) AND a!=48)
+         OR (g='mlkjihg' AND f GLOB 'ijklm*')
+         OR (g='ihgfedc' AND f GLOB 'cdefg*')
+         OR (f GLOB '?zabc*' AND f GLOB 'yzab*')
+  }
+} {24 47 49 50 52 60 76 80 scan 0 sort 0}
+do_test where7-2.323.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=880
+         OR b=982
+         OR a=52
+         OR (g='onmlkji' AND f GLOB 'abcde*')
+         OR a=24
+         OR ((a BETWEEN 47 AND 49) AND a!=48)
+         OR (g='mlkjihg' AND f GLOB 'ijklm*')
+         OR (g='ihgfedc' AND f GLOB 'cdefg*')
+         OR (f GLOB '?zabc*' AND f GLOB 'yzab*')
+  }
+} {24 47 49 50 52 60 76 80 scan 0 sort 0}
+do_test where7-2.324.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 67 AND 69) AND a!=68)
+         OR (g='utsrqpo' AND f GLOB 'wxyza*')
+         OR (g='lkjihgf' AND f GLOB 'pqrst*')
+         OR (f GLOB '?ghij*' AND f GLOB 'fghi*')
+  }
+} {5 22 31 57 67 69 83 scan 0 sort 0}
+do_test where7-2.324.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 67 AND 69) AND a!=68)
+         OR (g='utsrqpo' AND f GLOB 'wxyza*')
+         OR (g='lkjihgf' AND f GLOB 'pqrst*')
+         OR (f GLOB '?ghij*' AND f GLOB 'fghi*')
+  }
+} {5 22 31 57 67 69 83 scan 0 sort 0}
+do_test where7-2.325.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f='abcdefghi'
+         OR a=5
+         OR b=124
+         OR (g='kjihgfe' AND f GLOB 'rstuv*')
+         OR b=432
+         OR 1000000<b
+         OR a=58
+         OR (d>=45.0 AND d<46.0 AND d NOT NULL)
+         OR b=77
+         OR b=605
+  }
+} {5 7 26 45 52 55 58 69 78 scan 0 sort 0}
+do_test where7-2.325.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f='abcdefghi'
+         OR a=5
+         OR b=124
+         OR (g='kjihgfe' AND f GLOB 'rstuv*')
+         OR b=432
+         OR 1000000<b
+         OR a=58
+         OR (d>=45.0 AND d<46.0 AND d NOT NULL)
+         OR b=77
+         OR b=605
+  }
+} {5 7 26 45 52 55 58 69 78 scan 0 sort 0}
+do_test where7-2.326.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=89.0 AND d<90.0 AND d NOT NULL)
+         OR b=583
+         OR a=62
+  }
+} {53 62 89 scan 0 sort 0}
+do_test where7-2.326.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=89.0 AND d<90.0 AND d NOT NULL)
+         OR b=583
+         OR a=62
+  }
+} {53 62 89 scan 0 sort 0}
+do_test where7-2.327.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 84 AND 86) AND a!=85)
+         OR f='pqrstuvwx'
+         OR (d>=5.0 AND d<6.0 AND d NOT NULL)
+         OR b=278
+         OR a=10
+         OR (d>=54.0 AND d<55.0 AND d NOT NULL)
+         OR (d>=28.0 AND d<29.0 AND d NOT NULL)
+         OR ((a BETWEEN 63 AND 65) AND a!=64)
+         OR (g='kjihgfe' AND f GLOB 'qrstu*')
+         OR f='uvwxyzabc'
+  }
+} {5 10 15 20 28 41 46 54 63 65 67 68 72 84 86 93 98 scan 0 sort 0}
+do_test where7-2.327.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 84 AND 86) AND a!=85)
+         OR f='pqrstuvwx'
+         OR (d>=5.0 AND d<6.0 AND d NOT NULL)
+         OR b=278
+         OR a=10
+         OR (d>=54.0 AND d<55.0 AND d NOT NULL)
+         OR (d>=28.0 AND d<29.0 AND d NOT NULL)
+         OR ((a BETWEEN 63 AND 65) AND a!=64)
+         OR (g='kjihgfe' AND f GLOB 'qrstu*')
+         OR f='uvwxyzabc'
+  }
+} {5 10 15 20 28 41 46 54 63 65 67 68 72 84 86 93 98 scan 0 sort 0}
+do_test where7-2.328.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 57 AND 59) AND a!=58)
+         OR (f GLOB '?pqrs*' AND f GLOB 'opqr*')
+         OR b=564
+         OR (g='gfedcba' AND f GLOB 'mnopq*')
+         OR ((a BETWEEN 56 AND 58) AND a!=57)
+         OR b=77
+         OR (g='nmlkjih' AND f GLOB 'efghi*')
+         OR b=968
+         OR b=847
+         OR (g='hgfedcb' AND f GLOB 'hijkl*')
+         OR (g='lkjihgf' AND f GLOB 'opqrs*')
+  }
+} {7 14 40 56 57 58 59 66 77 85 88 90 92 scan 0 sort 0}
+do_test where7-2.328.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 57 AND 59) AND a!=58)
+         OR (f GLOB '?pqrs*' AND f GLOB 'opqr*')
+         OR b=564
+         OR (g='gfedcba' AND f GLOB 'mnopq*')
+         OR ((a BETWEEN 56 AND 58) AND a!=57)
+         OR b=77
+         OR (g='nmlkjih' AND f GLOB 'efghi*')
+         OR b=968
+         OR b=847
+         OR (g='hgfedcb' AND f GLOB 'hijkl*')
+         OR (g='lkjihgf' AND f GLOB 'opqrs*')
+  }
+} {7 14 40 56 57 58 59 66 77 85 88 90 92 scan 0 sort 0}
+do_test where7-2.329.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=539
+         OR b=594
+         OR ((a BETWEEN 63 AND 65) AND a!=64)
+         OR f='abcdefghi'
+         OR a=6
+         OR (d>=17.0 AND d<18.0 AND d NOT NULL)
+         OR b=762
+  }
+} {6 17 26 49 52 54 63 65 78 scan 0 sort 0}
+do_test where7-2.329.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=539
+         OR b=594
+         OR ((a BETWEEN 63 AND 65) AND a!=64)
+         OR f='abcdefghi'
+         OR a=6
+         OR (d>=17.0 AND d<18.0 AND d NOT NULL)
+         OR b=762
+  }
+} {6 17 26 49 52 54 63 65 78 scan 0 sort 0}
+do_test where7-2.330.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=869
+         OR b=630
+  }
+} {79 scan 0 sort 0}
+do_test where7-2.330.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=869
+         OR b=630
+  }
+} {79 scan 0 sort 0}
+do_test where7-2.331.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=72.0 AND d<73.0 AND d NOT NULL)
+         OR b=693
+         OR (g='hgfedcb' AND f GLOB 'ijklm*')
+         OR b=968
+         OR ((a BETWEEN 63 AND 65) AND a!=64)
+         OR b=132
+         OR f='nopqrstuv'
+         OR ((a BETWEEN 28 AND 30) AND a!=29)
+  }
+} {12 13 28 30 39 63 65 72 86 88 91 scan 0 sort 0}
+do_test where7-2.331.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=72.0 AND d<73.0 AND d NOT NULL)
+         OR b=693
+         OR (g='hgfedcb' AND f GLOB 'ijklm*')
+         OR b=968
+         OR ((a BETWEEN 63 AND 65) AND a!=64)
+         OR b=132
+         OR f='nopqrstuv'
+         OR ((a BETWEEN 28 AND 30) AND a!=29)
+  }
+} {12 13 28 30 39 63 65 72 86 88 91 scan 0 sort 0}
+do_test where7-2.332.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=32032
+         OR b=814
+         OR (d>=90.0 AND d<91.0 AND d NOT NULL)
+         OR b=814
+         OR a=78
+         OR a=37
+  }
+} {37 74 78 90 94 95 96 scan 0 sort 0}
+do_test where7-2.332.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=32032
+         OR b=814
+         OR (d>=90.0 AND d<91.0 AND d NOT NULL)
+         OR b=814
+         OR a=78
+         OR a=37
+  }
+} {37 74 78 90 94 95 96 scan 0 sort 0}
+do_test where7-2.333.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=190
+         OR (g='mlkjihg' AND f GLOB 'hijkl*')
+         OR b=924
+         OR (d>=40.0 AND d<41.0 AND d NOT NULL)
+         OR b=759
+         OR (g='yxwvuts' AND f GLOB 'bcdef*')
+  }
+} {1 40 59 69 84 scan 0 sort 0}
+do_test where7-2.333.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=190
+         OR (g='mlkjihg' AND f GLOB 'hijkl*')
+         OR b=924
+         OR (d>=40.0 AND d<41.0 AND d NOT NULL)
+         OR b=759
+         OR (g='yxwvuts' AND f GLOB 'bcdef*')
+  }
+} {1 40 59 69 84 scan 0 sort 0}
+do_test where7-2.334.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=97
+         OR b=201
+         OR b=597
+         OR a=6
+         OR f='cdefghijk'
+         OR ((a BETWEEN 74 AND 76) AND a!=75)
+         OR b=300
+         OR b=693
+         OR b=333
+         OR b=740
+  }
+} {2 6 28 54 63 74 76 80 97 scan 0 sort 0}
+do_test where7-2.334.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=97
+         OR b=201
+         OR b=597
+         OR a=6
+         OR f='cdefghijk'
+         OR ((a BETWEEN 74 AND 76) AND a!=75)
+         OR b=300
+         OR b=693
+         OR b=333
+         OR b=740
+  }
+} {2 6 28 54 63 74 76 80 97 scan 0 sort 0}
+do_test where7-2.335.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=26026
+         OR (g='kjihgfe' AND f GLOB 'uvwxy*')
+         OR (g='mlkjihg' AND f GLOB 'ijklm*')
+         OR c=17017
+         OR (g='jihgfed' AND f GLOB 'wxyza*')
+         OR (g='srqponm' AND f GLOB 'ghijk*')
+         OR (g='jihgfed' AND f GLOB 'zabcd*')
+         OR ((a BETWEEN 2 AND 4) AND a!=3)
+         OR (d>=43.0 AND d<44.0 AND d NOT NULL)
+  }
+} {2 4 32 43 49 50 51 60 72 74 76 77 78 scan 0 sort 0}
+do_test where7-2.335.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=26026
+         OR (g='kjihgfe' AND f GLOB 'uvwxy*')
+         OR (g='mlkjihg' AND f GLOB 'ijklm*')
+         OR c=17017
+         OR (g='jihgfed' AND f GLOB 'wxyza*')
+         OR (g='srqponm' AND f GLOB 'ghijk*')
+         OR (g='jihgfed' AND f GLOB 'zabcd*')
+         OR ((a BETWEEN 2 AND 4) AND a!=3)
+         OR (d>=43.0 AND d<44.0 AND d NOT NULL)
+  }
+} {2 4 32 43 49 50 51 60 72 74 76 77 78 scan 0 sort 0}
+do_test where7-2.336.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=70.0 AND d<71.0 AND d NOT NULL)
+         OR ((a BETWEEN 13 AND 15) AND a!=14)
+         OR b=638
+         OR b=495
+         OR a=44
+         OR b=374
+         OR a=22
+         OR c=12012
+  }
+} {13 15 22 34 35 36 44 45 58 70 scan 0 sort 0}
+do_test where7-2.336.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=70.0 AND d<71.0 AND d NOT NULL)
+         OR ((a BETWEEN 13 AND 15) AND a!=14)
+         OR b=638
+         OR b=495
+         OR a=44
+         OR b=374
+         OR a=22
+         OR c=12012
+  }
+} {13 15 22 34 35 36 44 45 58 70 scan 0 sort 0}
+do_test where7-2.337.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=8008
+         OR (d>=39.0 AND d<40.0 AND d NOT NULL)
+         OR (d>=100.0 AND d<101.0 AND d NOT NULL)
+         OR (d>=1.0 AND d<2.0 AND d NOT NULL)
+         OR b=300
+         OR (g='yxwvuts' AND f GLOB 'cdefg*')
+         OR a=41
+         OR (g='onmlkji' AND f GLOB 'xyzab*')
+         OR b=135
+         OR b=605
+  }
+} {1 2 22 23 24 39 41 49 55 100 scan 0 sort 0}
+do_test where7-2.337.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=8008
+         OR (d>=39.0 AND d<40.0 AND d NOT NULL)
+         OR (d>=100.0 AND d<101.0 AND d NOT NULL)
+         OR (d>=1.0 AND d<2.0 AND d NOT NULL)
+         OR b=300
+         OR (g='yxwvuts' AND f GLOB 'cdefg*')
+         OR a=41
+         OR (g='onmlkji' AND f GLOB 'xyzab*')
+         OR b=135
+         OR b=605
+  }
+} {1 2 22 23 24 39 41 49 55 100 scan 0 sort 0}
+do_test where7-2.338.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (f GLOB '?stuv*' AND f GLOB 'rstu*')
+         OR (f GLOB '?fghi*' AND f GLOB 'efgh*')
+         OR (g='srqponm' AND f GLOB 'efghi*')
+         OR (g='qponmlk' AND f GLOB 'pqrst*')
+         OR b=762
+         OR b=484
+         OR b=190
+         OR ((a BETWEEN 95 AND 97) AND a!=96)
+         OR (d>=74.0 AND d<75.0 AND d NOT NULL)
+         OR (g='mlkjihg' AND f GLOB 'jklmn*')
+         OR b=1023
+  }
+} {4 17 30 41 43 44 56 61 69 74 82 93 95 97 scan 0 sort 0}
+do_test where7-2.338.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (f GLOB '?stuv*' AND f GLOB 'rstu*')
+         OR (f GLOB '?fghi*' AND f GLOB 'efgh*')
+         OR (g='srqponm' AND f GLOB 'efghi*')
+         OR (g='qponmlk' AND f GLOB 'pqrst*')
+         OR b=762
+         OR b=484
+         OR b=190
+         OR ((a BETWEEN 95 AND 97) AND a!=96)
+         OR (d>=74.0 AND d<75.0 AND d NOT NULL)
+         OR (g='mlkjihg' AND f GLOB 'jklmn*')
+         OR b=1023
+  }
+} {4 17 30 41 43 44 56 61 69 74 82 93 95 97 scan 0 sort 0}
+do_test where7-2.339.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='ihgfedc' AND f GLOB 'efghi*')
+         OR a=34
+         OR f='rstuvwxyz'
+         OR (d>=10.0 AND d<11.0 AND d NOT NULL)
+         OR b=729
+  }
+} {10 17 34 43 69 82 95 scan 0 sort 0}
+do_test where7-2.339.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='ihgfedc' AND f GLOB 'efghi*')
+         OR a=34
+         OR f='rstuvwxyz'
+         OR (d>=10.0 AND d<11.0 AND d NOT NULL)
+         OR b=729
+  }
+} {10 17 34 43 69 82 95 scan 0 sort 0}
+do_test where7-2.340.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=37.0 AND d<38.0 AND d NOT NULL)
+         OR b=1004
+         OR (g='qponmlk' AND f GLOB 'pqrst*')
+         OR g IS NULL
+  }
+} {37 41 scan 0 sort 0}
+do_test where7-2.340.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=37.0 AND d<38.0 AND d NOT NULL)
+         OR b=1004
+         OR (g='qponmlk' AND f GLOB 'pqrst*')
+         OR g IS NULL
+  }
+} {37 41 scan 0 sort 0}
+do_test where7-2.341.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=73
+         OR ((a BETWEEN 36 AND 38) AND a!=37)
+         OR (d>=63.0 AND d<64.0 AND d NOT NULL)
+         OR ((a BETWEEN 51 AND 53) AND a!=52)
+         OR a=9
+         OR (d>=1.0 AND d<2.0 AND d NOT NULL)
+         OR (d>=55.0 AND d<56.0 AND d NOT NULL)
+         OR a=44
+         OR a=23
+         OR (g='ihgfedc' AND f GLOB 'abcde*')
+         OR (g='rqponml' AND f GLOB 'lmnop*')
+  }
+} {1 9 23 36 37 38 44 51 53 55 63 73 78 scan 0 sort 0}
+do_test where7-2.341.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=73
+         OR ((a BETWEEN 36 AND 38) AND a!=37)
+         OR (d>=63.0 AND d<64.0 AND d NOT NULL)
+         OR ((a BETWEEN 51 AND 53) AND a!=52)
+         OR a=9
+         OR (d>=1.0 AND d<2.0 AND d NOT NULL)
+         OR (d>=55.0 AND d<56.0 AND d NOT NULL)
+         OR a=44
+         OR a=23
+         OR (g='ihgfedc' AND f GLOB 'abcde*')
+         OR (g='rqponml' AND f GLOB 'lmnop*')
+  }
+} {1 9 23 36 37 38 44 51 53 55 63 73 78 scan 0 sort 0}
+do_test where7-2.342.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=487
+         OR ((a BETWEEN 77 AND 79) AND a!=78)
+         OR a=11
+         OR ((a BETWEEN 12 AND 14) AND a!=13)
+         OR ((a BETWEEN 69 AND 71) AND a!=70)
+         OR (g='ihgfedc' AND f GLOB 'bcdef*')
+         OR (g='ihgfedc' AND f GLOB 'abcde*')
+         OR a=13
+         OR a=15
+         OR (d>=29.0 AND d<30.0 AND d NOT NULL)
+         OR a=36
+  }
+} {11 12 13 14 15 29 36 69 71 77 78 79 scan 0 sort 0}
+do_test where7-2.342.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=487
+         OR ((a BETWEEN 77 AND 79) AND a!=78)
+         OR a=11
+         OR ((a BETWEEN 12 AND 14) AND a!=13)
+         OR ((a BETWEEN 69 AND 71) AND a!=70)
+         OR (g='ihgfedc' AND f GLOB 'bcdef*')
+         OR (g='ihgfedc' AND f GLOB 'abcde*')
+         OR a=13
+         OR a=15
+         OR (d>=29.0 AND d<30.0 AND d NOT NULL)
+         OR a=36
+  }
+} {11 12 13 14 15 29 36 69 71 77 78 79 scan 0 sort 0}
+do_test where7-2.343.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=938
+         OR ((a BETWEEN 57 AND 59) AND a!=58)
+         OR (d>=54.0 AND d<55.0 AND d NOT NULL)
+         OR (d>=32.0 AND d<33.0 AND d NOT NULL)
+         OR b=245
+         OR (d>=35.0 AND d<36.0 AND d NOT NULL)
+  }
+} {32 35 54 57 59 scan 0 sort 0}
+do_test where7-2.343.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=938
+         OR ((a BETWEEN 57 AND 59) AND a!=58)
+         OR (d>=54.0 AND d<55.0 AND d NOT NULL)
+         OR (d>=32.0 AND d<33.0 AND d NOT NULL)
+         OR b=245
+         OR (d>=35.0 AND d<36.0 AND d NOT NULL)
+  }
+} {32 35 54 57 59 scan 0 sort 0}
+do_test where7-2.344.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=1078
+         OR c=19019
+         OR a=38
+         OR a=59
+         OR ((a BETWEEN 30 AND 32) AND a!=31)
+         OR ((a BETWEEN 95 AND 97) AND a!=96)
+         OR c=25025
+         OR (d>=51.0 AND d<52.0 AND d NOT NULL)
+         OR (d>=79.0 AND d<80.0 AND d NOT NULL)
+         OR (d>=76.0 AND d<77.0 AND d NOT NULL)
+  }
+} {30 32 38 51 55 56 57 59 73 74 75 76 79 95 97 98 scan 0 sort 0}
+do_test where7-2.344.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=1078
+         OR c=19019
+         OR a=38
+         OR a=59
+         OR ((a BETWEEN 30 AND 32) AND a!=31)
+         OR ((a BETWEEN 95 AND 97) AND a!=96)
+         OR c=25025
+         OR (d>=51.0 AND d<52.0 AND d NOT NULL)
+         OR (d>=79.0 AND d<80.0 AND d NOT NULL)
+         OR (d>=76.0 AND d<77.0 AND d NOT NULL)
+  }
+} {30 32 38 51 55 56 57 59 73 74 75 76 79 95 97 98 scan 0 sort 0}
+do_test where7-2.345.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f='cdefghijk'
+         OR b=168
+         OR b=561
+         OR a=81
+         OR a=87
+  }
+} {2 28 51 54 80 81 87 scan 0 sort 0}
+do_test where7-2.345.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f='cdefghijk'
+         OR b=168
+         OR b=561
+         OR a=81
+         OR a=87
+  }
+} {2 28 51 54 80 81 87 scan 0 sort 0}
+do_test where7-2.346.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='gfedcba' AND f GLOB 'klmno*')
+         OR ((a BETWEEN 9 AND 11) AND a!=10)
+         OR (g='rqponml' AND f GLOB 'hijkl*')
+         OR a=48
+         OR b=113
+         OR ((a BETWEEN 20 AND 22) AND a!=21)
+         OR b=880
+         OR ((a BETWEEN 85 AND 87) AND a!=86)
+         OR (d>=73.0 AND d<74.0 AND d NOT NULL)
+         OR (g='nmlkjih' AND f GLOB 'bcdef*')
+  }
+} {9 11 20 22 33 48 53 73 80 85 87 88 scan 0 sort 0}
+do_test where7-2.346.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='gfedcba' AND f GLOB 'klmno*')
+         OR ((a BETWEEN 9 AND 11) AND a!=10)
+         OR (g='rqponml' AND f GLOB 'hijkl*')
+         OR a=48
+         OR b=113
+         OR ((a BETWEEN 20 AND 22) AND a!=21)
+         OR b=880
+         OR ((a BETWEEN 85 AND 87) AND a!=86)
+         OR (d>=73.0 AND d<74.0 AND d NOT NULL)
+         OR (g='nmlkjih' AND f GLOB 'bcdef*')
+  }
+} {9 11 20 22 33 48 53 73 80 85 87 88 scan 0 sort 0}
+do_test where7-2.347.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=517
+         OR b=187
+         OR (g='xwvutsr' AND f GLOB 'ghijk*')
+         OR b=1092
+         OR ((a BETWEEN 84 AND 86) AND a!=85)
+         OR (g='ponmlkj' AND f GLOB 'vwxyz*')
+  }
+} {6 17 47 84 86 scan 0 sort 0}
+do_test where7-2.347.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=517
+         OR b=187
+         OR (g='xwvutsr' AND f GLOB 'ghijk*')
+         OR b=1092
+         OR ((a BETWEEN 84 AND 86) AND a!=85)
+         OR (g='ponmlkj' AND f GLOB 'vwxyz*')
+  }
+} {6 17 47 84 86 scan 0 sort 0}
+do_test where7-2.348.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=982
+         OR (d>=45.0 AND d<46.0 AND d NOT NULL)
+         OR b=234
+         OR c=15015
+         OR a=47
+         OR f='qrstuvwxy'
+         OR (d>=65.0 AND d<66.0 AND d NOT NULL)
+         OR b=814
+         OR b=440
+         OR b=454
+  }
+} {16 40 42 43 44 45 47 65 68 74 94 scan 0 sort 0}
+do_test where7-2.348.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=982
+         OR (d>=45.0 AND d<46.0 AND d NOT NULL)
+         OR b=234
+         OR c=15015
+         OR a=47
+         OR f='qrstuvwxy'
+         OR (d>=65.0 AND d<66.0 AND d NOT NULL)
+         OR b=814
+         OR b=440
+         OR b=454
+  }
+} {16 40 42 43 44 45 47 65 68 74 94 scan 0 sort 0}
+do_test where7-2.349.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=47.0 AND d<48.0 AND d NOT NULL)
+         OR c=7007
+         OR b=429
+         OR ((a BETWEEN 25 AND 27) AND a!=26)
+         OR b=231
+         OR (d>=26.0 AND d<27.0 AND d NOT NULL)
+         OR c=22022
+         OR f='bcdefghij'
+  }
+} {1 19 20 21 25 26 27 39 47 53 64 65 66 79 scan 0 sort 0}
+do_test where7-2.349.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=47.0 AND d<48.0 AND d NOT NULL)
+         OR c=7007
+         OR b=429
+         OR ((a BETWEEN 25 AND 27) AND a!=26)
+         OR b=231
+         OR (d>=26.0 AND d<27.0 AND d NOT NULL)
+         OR c=22022
+         OR f='bcdefghij'
+  }
+} {1 19 20 21 25 26 27 39 47 53 64 65 66 79 scan 0 sort 0}
+do_test where7-2.350.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=17017
+         OR (d>=62.0 AND d<63.0 AND d NOT NULL)
+         OR ((a BETWEEN 88 AND 90) AND a!=89)
+         OR b=784
+         OR ((a BETWEEN 22 AND 24) AND a!=23)
+         OR ((a BETWEEN 54 AND 56) AND a!=55)
+         OR ((a BETWEEN 16 AND 18) AND a!=17)
+         OR f='zabcdefgh'
+  }
+} {16 18 22 24 25 49 50 51 54 56 62 77 88 90 scan 0 sort 0}
+do_test where7-2.350.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=17017
+         OR (d>=62.0 AND d<63.0 AND d NOT NULL)
+         OR ((a BETWEEN 88 AND 90) AND a!=89)
+         OR b=784
+         OR ((a BETWEEN 22 AND 24) AND a!=23)
+         OR ((a BETWEEN 54 AND 56) AND a!=55)
+         OR ((a BETWEEN 16 AND 18) AND a!=17)
+         OR f='zabcdefgh'
+  }
+} {16 18 22 24 25 49 50 51 54 56 62 77 88 90 scan 0 sort 0}
+do_test where7-2.351.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=344
+         OR b=275
+         OR c<=10
+  }
+} {25 scan 0 sort 0}
+do_test where7-2.351.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=344
+         OR b=275
+         OR c<=10
+  }
+} {25 scan 0 sort 0}
+do_test where7-2.352.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 44 AND 46) AND a!=45)
+         OR a=76
+         OR b=154
+         OR a=30
+         OR c=3003
+         OR (d>=88.0 AND d<89.0 AND d NOT NULL)
+         OR (f GLOB '?yzab*' AND f GLOB 'xyza*')
+         OR b=564
+         OR b=55
+         OR a=38
+  }
+} {5 7 8 9 14 23 30 38 44 46 49 75 76 88 scan 0 sort 0}
+do_test where7-2.352.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 44 AND 46) AND a!=45)
+         OR a=76
+         OR b=154
+         OR a=30
+         OR c=3003
+         OR (d>=88.0 AND d<89.0 AND d NOT NULL)
+         OR (f GLOB '?yzab*' AND f GLOB 'xyza*')
+         OR b=564
+         OR b=55
+         OR a=38
+  }
+} {5 7 8 9 14 23 30 38 44 46 49 75 76 88 scan 0 sort 0}
+do_test where7-2.353.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=52
+         OR ((a BETWEEN 66 AND 68) AND a!=67)
+         OR (d>=54.0 AND d<55.0 AND d NOT NULL)
+  }
+} {52 54 66 68 scan 0 sort 0}
+do_test where7-2.353.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=52
+         OR ((a BETWEEN 66 AND 68) AND a!=67)
+         OR (d>=54.0 AND d<55.0 AND d NOT NULL)
+  }
+} {52 54 66 68 scan 0 sort 0}
+do_test where7-2.354.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=792
+         OR (g='wvutsrq' AND f GLOB 'jklmn*')
+  }
+} {9 72 scan 0 sort 0}
+do_test where7-2.354.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=792
+         OR (g='wvutsrq' AND f GLOB 'jklmn*')
+  }
+} {9 72 scan 0 sort 0}
+do_test where7-2.355.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=73.0 AND d<74.0 AND d NOT NULL)
+         OR c=21021
+         OR (g='lkjihgf' AND f GLOB 'nopqr*')
+         OR f='zabcdefgh'
+         OR (g='yxwvuts' AND f GLOB 'bcdef*')
+         OR b=781
+         OR a=64
+         OR (d>=11.0 AND d<12.0 AND d NOT NULL)
+  }
+} {1 11 25 51 61 62 63 64 65 71 73 77 scan 0 sort 0}
+do_test where7-2.355.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=73.0 AND d<74.0 AND d NOT NULL)
+         OR c=21021
+         OR (g='lkjihgf' AND f GLOB 'nopqr*')
+         OR f='zabcdefgh'
+         OR (g='yxwvuts' AND f GLOB 'bcdef*')
+         OR b=781
+         OR a=64
+         OR (d>=11.0 AND d<12.0 AND d NOT NULL)
+  }
+} {1 11 25 51 61 62 63 64 65 71 73 77 scan 0 sort 0}
+do_test where7-2.356.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='lkjihgf' AND f GLOB 'pqrst*')
+         OR (d>=90.0 AND d<91.0 AND d NOT NULL)
+         OR a=34
+         OR (g='rqponml' AND f GLOB 'ijklm*')
+         OR (g='rqponml' AND f GLOB 'klmno*')
+         OR (g='srqponm' AND f GLOB 'defgh*')
+         OR b=319
+         OR b=330
+         OR ((a BETWEEN 28 AND 30) AND a!=29)
+  }
+} {28 29 30 34 36 67 90 scan 0 sort 0}
+do_test where7-2.356.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='lkjihgf' AND f GLOB 'pqrst*')
+         OR (d>=90.0 AND d<91.0 AND d NOT NULL)
+         OR a=34
+         OR (g='rqponml' AND f GLOB 'ijklm*')
+         OR (g='rqponml' AND f GLOB 'klmno*')
+         OR (g='srqponm' AND f GLOB 'defgh*')
+         OR b=319
+         OR b=330
+         OR ((a BETWEEN 28 AND 30) AND a!=29)
+  }
+} {28 29 30 34 36 67 90 scan 0 sort 0}
+do_test where7-2.357.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='qponmlk' AND f GLOB 'pqrst*')
+         OR (f GLOB '?qrst*' AND f GLOB 'pqrs*')
+         OR a=45
+         OR (d>=81.0 AND d<82.0 AND d NOT NULL)
+  }
+} {15 41 45 67 81 93 scan 0 sort 0}
+do_test where7-2.357.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='qponmlk' AND f GLOB 'pqrst*')
+         OR (f GLOB '?qrst*' AND f GLOB 'pqrs*')
+         OR a=45
+         OR (d>=81.0 AND d<82.0 AND d NOT NULL)
+  }
+} {15 41 45 67 81 93 scan 0 sort 0}
+do_test where7-2.358.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=53.0 AND d<54.0 AND d NOT NULL)
+         OR (g='nmlkjih' AND f GLOB 'cdefg*')
+         OR b=165
+         OR b=836
+  }
+} {15 53 54 76 scan 0 sort 0}
+do_test where7-2.358.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=53.0 AND d<54.0 AND d NOT NULL)
+         OR (g='nmlkjih' AND f GLOB 'cdefg*')
+         OR b=165
+         OR b=836
+  }
+} {15 53 54 76 scan 0 sort 0}
+do_test where7-2.359.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=1034
+         OR f='vwxyzabcd'
+         OR (g='gfedcba' AND f GLOB 'nopqr*')
+         OR ((a BETWEEN 57 AND 59) AND a!=58)
+  }
+} {21 47 57 59 73 91 94 99 scan 0 sort 0}
+do_test where7-2.359.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=1034
+         OR f='vwxyzabcd'
+         OR (g='gfedcba' AND f GLOB 'nopqr*')
+         OR ((a BETWEEN 57 AND 59) AND a!=58)
+  }
+} {21 47 57 59 73 91 94 99 scan 0 sort 0}
+do_test where7-2.360.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=440
+         OR a=19
+         OR (d>=47.0 AND d<48.0 AND d NOT NULL)
+         OR c=22022
+         OR (d>=47.0 AND d<48.0 AND d NOT NULL)
+         OR a=92
+         OR b=1026
+         OR b=608
+  }
+} {19 40 47 64 65 66 92 scan 0 sort 0}
+do_test where7-2.360.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=440
+         OR a=19
+         OR (d>=47.0 AND d<48.0 AND d NOT NULL)
+         OR c=22022
+         OR (d>=47.0 AND d<48.0 AND d NOT NULL)
+         OR a=92
+         OR b=1026
+         OR b=608
+  }
+} {19 40 47 64 65 66 92 scan 0 sort 0}
+do_test where7-2.361.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=37
+         OR b=88
+         OR (g='utsrqpo' AND f GLOB 'wxyza*')
+         OR c=23023
+         OR (d>=67.0 AND d<68.0 AND d NOT NULL)
+         OR a=56
+         OR ((a BETWEEN 13 AND 15) AND a!=14)
+         OR (f GLOB '?rstu*' AND f GLOB 'qrst*')
+         OR f='ijklmnopq'
+         OR ((a BETWEEN 85 AND 87) AND a!=86)
+  }
+} {8 13 15 16 22 34 37 42 56 60 67 68 69 85 86 87 94 scan 0 sort 0}
+do_test where7-2.361.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=37
+         OR b=88
+         OR (g='utsrqpo' AND f GLOB 'wxyza*')
+         OR c=23023
+         OR (d>=67.0 AND d<68.0 AND d NOT NULL)
+         OR a=56
+         OR ((a BETWEEN 13 AND 15) AND a!=14)
+         OR (f GLOB '?rstu*' AND f GLOB 'qrst*')
+         OR f='ijklmnopq'
+         OR ((a BETWEEN 85 AND 87) AND a!=86)
+  }
+} {8 13 15 16 22 34 37 42 56 60 67 68 69 85 86 87 94 scan 0 sort 0}
+do_test where7-2.362.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=97.0 AND d<98.0 AND d NOT NULL)
+         OR ((a BETWEEN 22 AND 24) AND a!=23)
+         OR a=74
+         OR (g='utsrqpo' AND f GLOB 'uvwxy*')
+         OR ((a BETWEEN 42 AND 44) AND a!=43)
+  }
+} {20 22 24 42 44 74 97 scan 0 sort 0}
+do_test where7-2.362.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=97.0 AND d<98.0 AND d NOT NULL)
+         OR ((a BETWEEN 22 AND 24) AND a!=23)
+         OR a=74
+         OR (g='utsrqpo' AND f GLOB 'uvwxy*')
+         OR ((a BETWEEN 42 AND 44) AND a!=43)
+  }
+} {20 22 24 42 44 74 97 scan 0 sort 0}
+do_test where7-2.363.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f='uvwxyzabc'
+         OR b=869
+         OR ((a BETWEEN 49 AND 51) AND a!=50)
+  }
+} {20 46 49 51 72 79 98 scan 0 sort 0}
+do_test where7-2.363.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f='uvwxyzabc'
+         OR b=869
+         OR ((a BETWEEN 49 AND 51) AND a!=50)
+  }
+} {20 46 49 51 72 79 98 scan 0 sort 0}
+do_test where7-2.364.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=682
+         OR b=583
+         OR b=685
+         OR b=817
+         OR ((a BETWEEN 34 AND 36) AND a!=35)
+  }
+} {34 36 53 62 scan 0 sort 0}
+do_test where7-2.364.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=682
+         OR b=583
+         OR b=685
+         OR b=817
+         OR ((a BETWEEN 34 AND 36) AND a!=35)
+  }
+} {34 36 53 62 scan 0 sort 0}
+do_test where7-2.365.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=583
+         OR a=39
+         OR b=627
+         OR ((a BETWEEN 72 AND 74) AND a!=73)
+  }
+} {39 53 57 72 74 scan 0 sort 0}
+do_test where7-2.365.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=583
+         OR a=39
+         OR b=627
+         OR ((a BETWEEN 72 AND 74) AND a!=73)
+  }
+} {39 53 57 72 74 scan 0 sort 0}
+do_test where7-2.366.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='jihgfed' AND f GLOB 'vwxyz*')
+         OR ((a BETWEEN 2 AND 4) AND a!=3)
+         OR b=212
+         OR (g='nmlkjih' AND f GLOB 'bcdef*')
+         OR ((a BETWEEN 24 AND 26) AND a!=25)
+         OR a=20
+         OR (g='kjihgfe' AND f GLOB 'qrstu*')
+         OR b=627
+  }
+} {2 4 20 24 26 53 57 68 73 scan 0 sort 0}
+do_test where7-2.366.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='jihgfed' AND f GLOB 'vwxyz*')
+         OR ((a BETWEEN 2 AND 4) AND a!=3)
+         OR b=212
+         OR (g='nmlkjih' AND f GLOB 'bcdef*')
+         OR ((a BETWEEN 24 AND 26) AND a!=25)
+         OR a=20
+         OR (g='kjihgfe' AND f GLOB 'qrstu*')
+         OR b=627
+  }
+} {2 4 20 24 26 53 57 68 73 scan 0 sort 0}
+do_test where7-2.367.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (f GLOB '?jklm*' AND f GLOB 'ijkl*')
+         OR (d>=77.0 AND d<78.0 AND d NOT NULL)
+         OR b=157
+         OR b=1026
+  }
+} {8 34 60 77 86 scan 0 sort 0}
+do_test where7-2.367.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (f GLOB '?jklm*' AND f GLOB 'ijkl*')
+         OR (d>=77.0 AND d<78.0 AND d NOT NULL)
+         OR b=157
+         OR b=1026
+  }
+} {8 34 60 77 86 scan 0 sort 0}
+do_test where7-2.368.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=553
+         OR a=16
+         OR ((a BETWEEN 80 AND 82) AND a!=81)
+         OR ((a BETWEEN 31 AND 33) AND a!=32)
+         OR (g='wvutsrq' AND f GLOB 'lmnop*')
+         OR f='zabcdefgh'
+         OR (g='lkjihgf' AND f GLOB 'pqrst*')
+         OR (g='xwvutsr' AND f GLOB 'fghij*')
+  }
+} {5 11 16 25 31 33 51 67 77 80 82 scan 0 sort 0}
+do_test where7-2.368.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=553
+         OR a=16
+         OR ((a BETWEEN 80 AND 82) AND a!=81)
+         OR ((a BETWEEN 31 AND 33) AND a!=32)
+         OR (g='wvutsrq' AND f GLOB 'lmnop*')
+         OR f='zabcdefgh'
+         OR (g='lkjihgf' AND f GLOB 'pqrst*')
+         OR (g='xwvutsr' AND f GLOB 'fghij*')
+  }
+} {5 11 16 25 31 33 51 67 77 80 82 scan 0 sort 0}
+do_test where7-2.369.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=858
+         OR c=9009
+         OR b=792
+         OR b=88
+         OR b=154
+  }
+} {8 14 25 26 27 72 78 scan 0 sort 0}
+do_test where7-2.369.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=858
+         OR c=9009
+         OR b=792
+         OR b=88
+         OR b=154
+  }
+} {8 14 25 26 27 72 78 scan 0 sort 0}
+do_test where7-2.370.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f IS NULL
+         OR a=37
+         OR (g='onmlkji' AND f GLOB 'wxyza*')
+         OR ((a BETWEEN 55 AND 57) AND a!=56)
+         OR b=168
+         OR b=22
+         OR (g='utsrqpo' AND f GLOB 'vwxyz*')
+         OR b=506
+  }
+} {2 21 37 46 48 55 57 scan 0 sort 0}
+do_test where7-2.370.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f IS NULL
+         OR a=37
+         OR (g='onmlkji' AND f GLOB 'wxyza*')
+         OR ((a BETWEEN 55 AND 57) AND a!=56)
+         OR b=168
+         OR b=22
+         OR (g='utsrqpo' AND f GLOB 'vwxyz*')
+         OR b=506
+  }
+} {2 21 37 46 48 55 57 scan 0 sort 0}
+do_test where7-2.371.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=29
+         OR ((a BETWEEN 26 AND 28) AND a!=27)
+         OR (g='kjihgfe' AND f GLOB 'rstuv*')
+         OR (g='qponmlk' AND f GLOB 'qrstu*')
+         OR (f GLOB '?uvwx*' AND f GLOB 'tuvw*')
+         OR b=209
+         OR (f GLOB '?abcd*' AND f GLOB 'zabc*')
+         OR b=146
+  }
+} {19 25 26 28 29 42 45 51 69 71 77 97 scan 0 sort 0}
+do_test where7-2.371.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=29
+         OR ((a BETWEEN 26 AND 28) AND a!=27)
+         OR (g='kjihgfe' AND f GLOB 'rstuv*')
+         OR (g='qponmlk' AND f GLOB 'qrstu*')
+         OR (f GLOB '?uvwx*' AND f GLOB 'tuvw*')
+         OR b=209
+         OR (f GLOB '?abcd*' AND f GLOB 'zabc*')
+         OR b=146
+  }
+} {19 25 26 28 29 42 45 51 69 71 77 97 scan 0 sort 0}
+do_test where7-2.372.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=63
+         OR a=69
+         OR b=333
+         OR (d>=6.0 AND d<7.0 AND d NOT NULL)
+         OR b=135
+         OR b=25
+         OR b=1037
+         OR b=682
+         OR c=27027
+         OR a=46
+  }
+} {6 46 62 63 69 79 80 81 scan 0 sort 0}
+do_test where7-2.372.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=63
+         OR a=69
+         OR b=333
+         OR (d>=6.0 AND d<7.0 AND d NOT NULL)
+         OR b=135
+         OR b=25
+         OR b=1037
+         OR b=682
+         OR c=27027
+         OR a=46
+  }
+} {6 46 62 63 69 79 80 81 scan 0 sort 0}
+do_test where7-2.373.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='edcbazy' AND f GLOB 'wxyza*')
+         OR (d>=52.0 AND d<53.0 AND d NOT NULL)
+         OR b=113
+         OR ((a BETWEEN 40 AND 42) AND a!=41)
+         OR ((a BETWEEN 53 AND 55) AND a!=54)
+         OR ((a BETWEEN 59 AND 61) AND a!=60)
+  }
+} {40 42 52 53 55 59 61 100 scan 0 sort 0}
+do_test where7-2.373.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='edcbazy' AND f GLOB 'wxyza*')
+         OR (d>=52.0 AND d<53.0 AND d NOT NULL)
+         OR b=113
+         OR ((a BETWEEN 40 AND 42) AND a!=41)
+         OR ((a BETWEEN 53 AND 55) AND a!=54)
+         OR ((a BETWEEN 59 AND 61) AND a!=60)
+  }
+} {40 42 52 53 55 59 61 100 scan 0 sort 0}
+do_test where7-2.374.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=1026
+         OR (d>=48.0 AND d<49.0 AND d NOT NULL)
+  }
+} {48 scan 0 sort 0}
+do_test where7-2.374.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=1026
+         OR (d>=48.0 AND d<49.0 AND d NOT NULL)
+  }
+} {48 scan 0 sort 0}
+do_test where7-2.375.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='rqponml' AND f GLOB 'ijklm*')
+         OR a=99
+         OR a=100
+         OR b=429
+         OR b=682
+         OR b=495
+         OR f='efghijklm'
+         OR a=10
+         OR f='mnopqrstu'
+         OR b=946
+         OR (d>=95.0 AND d<96.0 AND d NOT NULL)
+  }
+} {4 10 12 30 34 38 39 45 56 62 64 82 86 90 95 99 100 scan 0 sort 0}
+do_test where7-2.375.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='rqponml' AND f GLOB 'ijklm*')
+         OR a=99
+         OR a=100
+         OR b=429
+         OR b=682
+         OR b=495
+         OR f='efghijklm'
+         OR a=10
+         OR f='mnopqrstu'
+         OR b=946
+         OR (d>=95.0 AND d<96.0 AND d NOT NULL)
+  }
+} {4 10 12 30 34 38 39 45 56 62 64 82 86 90 95 99 100 scan 0 sort 0}
+do_test where7-2.376.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=11.0 AND d<12.0 AND d NOT NULL)
+         OR c=23023
+         OR b=462
+         OR ((a BETWEEN 17 AND 19) AND a!=18)
+  }
+} {11 17 19 42 67 68 69 scan 0 sort 0}
+do_test where7-2.376.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=11.0 AND d<12.0 AND d NOT NULL)
+         OR c=23023
+         OR b=462
+         OR ((a BETWEEN 17 AND 19) AND a!=18)
+  }
+} {11 17 19 42 67 68 69 scan 0 sort 0}
+do_test where7-2.377.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=539
+         OR ((a BETWEEN 9 AND 11) AND a!=10)
+         OR c=6006
+         OR a=18
+         OR c=24024
+         OR (g='wvutsrq' AND f GLOB 'jklmn*')
+         OR (d>=38.0 AND d<39.0 AND d NOT NULL)
+         OR (g='ponmlkj' AND f GLOB 'rstuv*')
+         OR c=19019
+         OR (d>=87.0 AND d<88.0 AND d NOT NULL)
+         OR ((a BETWEEN 44 AND 46) AND a!=45)
+  }
+} {9 11 16 17 18 38 43 44 46 49 55 56 57 70 71 72 87 scan 0 sort 0}
+do_test where7-2.377.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=539
+         OR ((a BETWEEN 9 AND 11) AND a!=10)
+         OR c=6006
+         OR a=18
+         OR c=24024
+         OR (g='wvutsrq' AND f GLOB 'jklmn*')
+         OR (d>=38.0 AND d<39.0 AND d NOT NULL)
+         OR (g='ponmlkj' AND f GLOB 'rstuv*')
+         OR c=19019
+         OR (d>=87.0 AND d<88.0 AND d NOT NULL)
+         OR ((a BETWEEN 44 AND 46) AND a!=45)
+  }
+} {9 11 16 17 18 38 43 44 46 49 55 56 57 70 71 72 87 scan 0 sort 0}
+do_test where7-2.378.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=15.0 AND d<16.0 AND d NOT NULL)
+         OR a=20
+         OR (d>=94.0 AND d<95.0 AND d NOT NULL)
+         OR b=121
+         OR a=10
+         OR b=792
+  }
+} {10 11 15 20 72 94 scan 0 sort 0}
+do_test where7-2.378.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=15.0 AND d<16.0 AND d NOT NULL)
+         OR a=20
+         OR (d>=94.0 AND d<95.0 AND d NOT NULL)
+         OR b=121
+         OR a=10
+         OR b=792
+  }
+} {10 11 15 20 72 94 scan 0 sort 0}
+do_test where7-2.379.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=99
+         OR ((a BETWEEN 85 AND 87) AND a!=86)
+         OR (f GLOB '?pqrs*' AND f GLOB 'opqr*')
+  }
+} {9 14 40 66 85 87 92 scan 0 sort 0}
+do_test where7-2.379.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=99
+         OR ((a BETWEEN 85 AND 87) AND a!=86)
+         OR (f GLOB '?pqrs*' AND f GLOB 'opqr*')
+  }
+} {9 14 40 66 85 87 92 scan 0 sort 0}
+do_test where7-2.380.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (f GLOB '?hijk*' AND f GLOB 'ghij*')
+         OR ((a BETWEEN 79 AND 81) AND a!=80)
+         OR b=715
+         OR ((a BETWEEN 23 AND 25) AND a!=24)
+  }
+} {6 23 25 32 58 65 79 81 84 scan 0 sort 0}
+do_test where7-2.380.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (f GLOB '?hijk*' AND f GLOB 'ghij*')
+         OR ((a BETWEEN 79 AND 81) AND a!=80)
+         OR b=715
+         OR ((a BETWEEN 23 AND 25) AND a!=24)
+  }
+} {6 23 25 32 58 65 79 81 84 scan 0 sort 0}
+do_test where7-2.381.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=97.0 AND d<98.0 AND d NOT NULL)
+         OR (g='fedcbaz' AND f GLOB 'tuvwx*')
+         OR a=46
+         OR (d>=28.0 AND d<29.0 AND d NOT NULL)
+  }
+} {28 46 97 scan 0 sort 0}
+do_test where7-2.381.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=97.0 AND d<98.0 AND d NOT NULL)
+         OR (g='fedcbaz' AND f GLOB 'tuvwx*')
+         OR a=46
+         OR (d>=28.0 AND d<29.0 AND d NOT NULL)
+  }
+} {28 46 97 scan 0 sort 0}
+do_test where7-2.382.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='ihgfedc' AND f GLOB 'defgh*')
+         OR ((a BETWEEN 97 AND 99) AND a!=98)
+         OR (d>=18.0 AND d<19.0 AND d NOT NULL)
+         OR b=1056
+         OR b=146
+  }
+} {18 81 96 97 99 scan 0 sort 0}
+do_test where7-2.382.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='ihgfedc' AND f GLOB 'defgh*')
+         OR ((a BETWEEN 97 AND 99) AND a!=98)
+         OR (d>=18.0 AND d<19.0 AND d NOT NULL)
+         OR b=1056
+         OR b=146
+  }
+} {18 81 96 97 99 scan 0 sort 0}
+do_test where7-2.383.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=15
+         OR b=388
+         OR ((a BETWEEN 82 AND 84) AND a!=83)
+         OR a=36
+         OR b=737
+         OR ((a BETWEEN 21 AND 23) AND a!=22)
+         OR (d>=89.0 AND d<90.0 AND d NOT NULL)
+         OR a=75
+  }
+} {15 21 23 36 67 75 82 84 89 scan 0 sort 0}
+do_test where7-2.383.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=15
+         OR b=388
+         OR ((a BETWEEN 82 AND 84) AND a!=83)
+         OR a=36
+         OR b=737
+         OR ((a BETWEEN 21 AND 23) AND a!=22)
+         OR (d>=89.0 AND d<90.0 AND d NOT NULL)
+         OR a=75
+  }
+} {15 21 23 36 67 75 82 84 89 scan 0 sort 0}
+do_test where7-2.384.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=9009
+         OR a=34
+         OR (d>=95.0 AND d<96.0 AND d NOT NULL)
+         OR (d>=16.0 AND d<17.0 AND d NOT NULL)
+         OR b=715
+         OR b=619
+         OR ((a BETWEEN 98 AND 100) AND a!=99)
+  }
+} {16 25 26 27 34 65 95 98 100 scan 0 sort 0}
+do_test where7-2.384.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=9009
+         OR a=34
+         OR (d>=95.0 AND d<96.0 AND d NOT NULL)
+         OR (d>=16.0 AND d<17.0 AND d NOT NULL)
+         OR b=715
+         OR b=619
+         OR ((a BETWEEN 98 AND 100) AND a!=99)
+  }
+} {16 25 26 27 34 65 95 98 100 scan 0 sort 0}
+do_test where7-2.385.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=61.0 AND d<62.0 AND d NOT NULL)
+         OR ((a BETWEEN 11 AND 13) AND a!=12)
+         OR ((a BETWEEN 74 AND 76) AND a!=75)
+         OR ((a BETWEEN 39 AND 41) AND a!=40)
+         OR b=242
+         OR ((a BETWEEN 32 AND 34) AND a!=33)
+         OR (f GLOB '?cdef*' AND f GLOB 'bcde*')
+         OR b=300
+         OR ((a BETWEEN 24 AND 26) AND a!=25)
+         OR (d>=21.0 AND d<22.0 AND d NOT NULL)
+         OR ((a BETWEEN 93 AND 95) AND a!=94)
+  }
+} {1 11 13 21 22 24 26 27 32 34 39 41 53 61 74 76 79 93 95 scan 0 sort 0}
+do_test where7-2.385.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=61.0 AND d<62.0 AND d NOT NULL)
+         OR ((a BETWEEN 11 AND 13) AND a!=12)
+         OR ((a BETWEEN 74 AND 76) AND a!=75)
+         OR ((a BETWEEN 39 AND 41) AND a!=40)
+         OR b=242
+         OR ((a BETWEEN 32 AND 34) AND a!=33)
+         OR (f GLOB '?cdef*' AND f GLOB 'bcde*')
+         OR b=300
+         OR ((a BETWEEN 24 AND 26) AND a!=25)
+         OR (d>=21.0 AND d<22.0 AND d NOT NULL)
+         OR ((a BETWEEN 93 AND 95) AND a!=94)
+  }
+} {1 11 13 21 22 24 26 27 32 34 39 41 53 61 74 76 79 93 95 scan 0 sort 0}
+do_test where7-2.386.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=85
+         OR (d>=33.0 AND d<34.0 AND d NOT NULL)
+         OR b=212
+         OR ((a BETWEEN 25 AND 27) AND a!=26)
+         OR b=36
+         OR b=231
+         OR b=1048
+         OR (d>=92.0 AND d<93.0 AND d NOT NULL)
+         OR ((a BETWEEN 69 AND 71) AND a!=70)
+         OR (g='ponmlkj' AND f GLOB 'rstuv*')
+         OR c=19019
+  }
+} {21 25 27 33 43 55 56 57 69 71 85 92 scan 0 sort 0}
+do_test where7-2.386.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=85
+         OR (d>=33.0 AND d<34.0 AND d NOT NULL)
+         OR b=212
+         OR ((a BETWEEN 25 AND 27) AND a!=26)
+         OR b=36
+         OR b=231
+         OR b=1048
+         OR (d>=92.0 AND d<93.0 AND d NOT NULL)
+         OR ((a BETWEEN 69 AND 71) AND a!=70)
+         OR (g='ponmlkj' AND f GLOB 'rstuv*')
+         OR c=19019
+  }
+} {21 25 27 33 43 55 56 57 69 71 85 92 scan 0 sort 0}
+do_test where7-2.387.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 28 AND 30) AND a!=29)
+         OR (d>=8.0 AND d<9.0 AND d NOT NULL)
+         OR b=1059
+         OR b=630
+  }
+} {8 28 30 scan 0 sort 0}
+do_test where7-2.387.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 28 AND 30) AND a!=29)
+         OR (d>=8.0 AND d<9.0 AND d NOT NULL)
+         OR b=1059
+         OR b=630
+  }
+} {8 28 30 scan 0 sort 0}
+do_test where7-2.388.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f='ghijklmno'
+         OR f='nopqrstuv'
+         OR b=297
+  }
+} {6 13 27 32 39 58 65 84 91 scan 0 sort 0}
+do_test where7-2.388.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f='ghijklmno'
+         OR f='nopqrstuv'
+         OR b=297
+  }
+} {6 13 27 32 39 58 65 84 91 scan 0 sort 0}
+do_test where7-2.389.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=1001
+         OR ((a BETWEEN 87 AND 89) AND a!=88)
+         OR (d>=15.0 AND d<16.0 AND d NOT NULL)
+         OR ((a BETWEEN 68 AND 70) AND a!=69)
+         OR a=58
+         OR b=333
+         OR (d>=49.0 AND d<50.0 AND d NOT NULL)
+         OR (g='ponmlkj' AND f GLOB 'rstuv*')
+         OR b=572
+         OR ((a BETWEEN 50 AND 52) AND a!=51)
+         OR (f GLOB '?ijkl*' AND f GLOB 'hijk*')
+  }
+} {7 15 33 43 49 50 52 58 59 68 70 85 87 89 91 scan 0 sort 0}
+do_test where7-2.389.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=1001
+         OR ((a BETWEEN 87 AND 89) AND a!=88)
+         OR (d>=15.0 AND d<16.0 AND d NOT NULL)
+         OR ((a BETWEEN 68 AND 70) AND a!=69)
+         OR a=58
+         OR b=333
+         OR (d>=49.0 AND d<50.0 AND d NOT NULL)
+         OR (g='ponmlkj' AND f GLOB 'rstuv*')
+         OR b=572
+         OR ((a BETWEEN 50 AND 52) AND a!=51)
+         OR (f GLOB '?ijkl*' AND f GLOB 'hijk*')
+  }
+} {7 15 33 43 49 50 52 58 59 68 70 85 87 89 91 scan 0 sort 0}
+do_test where7-2.390.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=1034
+         OR f='lmnopqrst'
+         OR (g='qponmlk' AND f GLOB 'mnopq*')
+  }
+} {11 37 38 63 89 94 scan 0 sort 0}
+do_test where7-2.390.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=1034
+         OR f='lmnopqrst'
+         OR (g='qponmlk' AND f GLOB 'mnopq*')
+  }
+} {11 37 38 63 89 94 scan 0 sort 0}
+do_test where7-2.391.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=15015
+         OR (d>=87.0 AND d<88.0 AND d NOT NULL)
+         OR (g='mlkjihg' AND f GLOB 'hijkl*')
+         OR b=58
+         OR b=674
+         OR b=979
+  }
+} {43 44 45 59 87 89 scan 0 sort 0}
+do_test where7-2.391.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=15015
+         OR (d>=87.0 AND d<88.0 AND d NOT NULL)
+         OR (g='mlkjihg' AND f GLOB 'hijkl*')
+         OR b=58
+         OR b=674
+         OR b=979
+  }
+} {43 44 45 59 87 89 scan 0 sort 0}
+do_test where7-2.392.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 60 AND 62) AND a!=61)
+         OR b=660
+         OR b=341
+  }
+} {31 60 62 scan 0 sort 0}
+do_test where7-2.392.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 60 AND 62) AND a!=61)
+         OR b=660
+         OR b=341
+  }
+} {31 60 62 scan 0 sort 0}
+do_test where7-2.393.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=528
+         OR (d>=64.0 AND d<65.0 AND d NOT NULL)
+         OR b=630
+         OR a=19
+         OR (g='ponmlkj' AND f GLOB 'stuvw*')
+         OR f='wxyzabcde'
+         OR (g='ponmlkj' AND f GLOB 'rstuv*')
+         OR b=377
+         OR (d>=48.0 AND d<49.0 AND d NOT NULL)
+         OR a=77
+         OR (d>=8.0 AND d<9.0 AND d NOT NULL)
+  }
+} {8 19 22 43 44 48 64 74 77 100 scan 0 sort 0}
+do_test where7-2.393.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=528
+         OR (d>=64.0 AND d<65.0 AND d NOT NULL)
+         OR b=630
+         OR a=19
+         OR (g='ponmlkj' AND f GLOB 'stuvw*')
+         OR f='wxyzabcde'
+         OR (g='ponmlkj' AND f GLOB 'rstuv*')
+         OR b=377
+         OR (d>=48.0 AND d<49.0 AND d NOT NULL)
+         OR a=77
+         OR (d>=8.0 AND d<9.0 AND d NOT NULL)
+  }
+} {8 19 22 43 44 48 64 74 77 100 scan 0 sort 0}
+do_test where7-2.394.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=506
+         OR a=70
+  }
+} {46 70 scan 0 sort 0}
+do_test where7-2.394.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=506
+         OR a=70
+  }
+} {46 70 scan 0 sort 0}
+do_test where7-2.395.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=64
+         OR (f GLOB '?bcde*' AND f GLOB 'abcd*')
+         OR (d>=57.0 AND d<58.0 AND d NOT NULL)
+         OR (g='srqponm' AND f GLOB 'cdefg*')
+         OR c=14014
+         OR b=586
+         OR c=27027
+         OR (d>=86.0 AND d<87.0 AND d NOT NULL)
+         OR (g='jihgfed' AND f GLOB 'wxyza*')
+  }
+} {26 28 40 41 42 52 57 64 74 78 79 80 81 86 scan 0 sort 0}
+do_test where7-2.395.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=64
+         OR (f GLOB '?bcde*' AND f GLOB 'abcd*')
+         OR (d>=57.0 AND d<58.0 AND d NOT NULL)
+         OR (g='srqponm' AND f GLOB 'cdefg*')
+         OR c=14014
+         OR b=586
+         OR c=27027
+         OR (d>=86.0 AND d<87.0 AND d NOT NULL)
+         OR (g='jihgfed' AND f GLOB 'wxyza*')
+  }
+} {26 28 40 41 42 52 57 64 74 78 79 80 81 86 scan 0 sort 0}
+do_test where7-2.396.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=46
+         OR b=297
+         OR ((a BETWEEN 57 AND 59) AND a!=58)
+         OR (d>=75.0 AND d<76.0 AND d NOT NULL)
+         OR b=275
+         OR b=91
+         OR b=1015
+         OR c=12012
+         OR a=23
+         OR b=278
+  }
+} {23 25 27 34 35 36 46 57 59 75 scan 0 sort 0}
+do_test where7-2.396.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=46
+         OR b=297
+         OR ((a BETWEEN 57 AND 59) AND a!=58)
+         OR (d>=75.0 AND d<76.0 AND d NOT NULL)
+         OR b=275
+         OR b=91
+         OR b=1015
+         OR c=12012
+         OR a=23
+         OR b=278
+  }
+} {23 25 27 34 35 36 46 57 59 75 scan 0 sort 0}
+do_test where7-2.397.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='kjihgfe' AND f GLOB 'tuvwx*')
+         OR (g='tsrqpon' AND f GLOB 'zabcd*')
+         OR (d>=61.0 AND d<62.0 AND d NOT NULL)
+         OR (d>=98.0 AND d<99.0 AND d NOT NULL)
+         OR (g='tsrqpon' AND f GLOB 'bcdef*')
+         OR a=23
+         OR b=737
+         OR (d>=71.0 AND d<72.0 AND d NOT NULL)
+         OR ((a BETWEEN 18 AND 20) AND a!=19)
+         OR (d>=69.0 AND d<70.0 AND d NOT NULL)
+         OR ((a BETWEEN 68 AND 70) AND a!=69)
+  }
+} {18 20 23 25 27 61 67 68 69 70 71 98 scan 0 sort 0}
+do_test where7-2.397.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='kjihgfe' AND f GLOB 'tuvwx*')
+         OR (g='tsrqpon' AND f GLOB 'zabcd*')
+         OR (d>=61.0 AND d<62.0 AND d NOT NULL)
+         OR (d>=98.0 AND d<99.0 AND d NOT NULL)
+         OR (g='tsrqpon' AND f GLOB 'bcdef*')
+         OR a=23
+         OR b=737
+         OR (d>=71.0 AND d<72.0 AND d NOT NULL)
+         OR ((a BETWEEN 18 AND 20) AND a!=19)
+         OR (d>=69.0 AND d<70.0 AND d NOT NULL)
+         OR ((a BETWEEN 68 AND 70) AND a!=69)
+  }
+} {18 20 23 25 27 61 67 68 69 70 71 98 scan 0 sort 0}
+do_test where7-2.398.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=814
+         OR (d>=71.0 AND d<72.0 AND d NOT NULL)
+         OR b=377
+         OR (d>=79.0 AND d<80.0 AND d NOT NULL)
+  }
+} {71 74 79 scan 0 sort 0}
+do_test where7-2.398.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=814
+         OR (d>=71.0 AND d<72.0 AND d NOT NULL)
+         OR b=377
+         OR (d>=79.0 AND d<80.0 AND d NOT NULL)
+  }
+} {71 74 79 scan 0 sort 0}
+do_test where7-2.399.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=18
+         OR b=1059
+         OR (f GLOB '?abcd*' AND f GLOB 'zabc*')
+         OR (g='nmlkjih' AND f GLOB 'bcdef*')
+         OR (d>=9.0 AND d<10.0 AND d NOT NULL)
+         OR (g='ponmlkj' AND f GLOB 'uvwxy*')
+         OR b=795
+  }
+} {9 18 25 46 51 53 77 scan 0 sort 0}
+do_test where7-2.399.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=18
+         OR b=1059
+         OR (f GLOB '?abcd*' AND f GLOB 'zabc*')
+         OR (g='nmlkjih' AND f GLOB 'bcdef*')
+         OR (d>=9.0 AND d<10.0 AND d NOT NULL)
+         OR (g='ponmlkj' AND f GLOB 'uvwxy*')
+         OR b=795
+  }
+} {9 18 25 46 51 53 77 scan 0 sort 0}
+do_test where7-2.400.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (f GLOB '?mnop*' AND f GLOB 'lmno*')
+         OR a=93
+         OR a=11
+         OR f='nopqrstuv'
+         OR (d>=27.0 AND d<28.0 AND d NOT NULL)
+         OR ((a BETWEEN 22 AND 24) AND a!=23)
+         OR a=17
+         OR b=366
+  }
+} {11 13 17 22 24 27 37 39 63 65 89 91 93 scan 0 sort 0}
+do_test where7-2.400.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (f GLOB '?mnop*' AND f GLOB 'lmno*')
+         OR a=93
+         OR a=11
+         OR f='nopqrstuv'
+         OR (d>=27.0 AND d<28.0 AND d NOT NULL)
+         OR ((a BETWEEN 22 AND 24) AND a!=23)
+         OR a=17
+         OR b=366
+  }
+} {11 13 17 22 24 27 37 39 63 65 89 91 93 scan 0 sort 0}
+do_test where7-2.401.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=685
+         OR a=33
+         OR ((a BETWEEN 40 AND 42) AND a!=41)
+         OR (g='vutsrqp' AND f GLOB 'qrstu*')
+         OR (g='rqponml' AND f GLOB 'lmnop*')
+         OR ((a BETWEEN 39 AND 41) AND a!=40)
+         OR ((a BETWEEN 80 AND 82) AND a!=81)
+         OR b=715
+         OR ((a BETWEEN 93 AND 95) AND a!=94)
+         OR a=6
+         OR ((a BETWEEN 59 AND 61) AND a!=60)
+  }
+} {6 16 33 37 39 40 41 42 59 61 65 80 82 93 95 scan 0 sort 0}
+do_test where7-2.401.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=685
+         OR a=33
+         OR ((a BETWEEN 40 AND 42) AND a!=41)
+         OR (g='vutsrqp' AND f GLOB 'qrstu*')
+         OR (g='rqponml' AND f GLOB 'lmnop*')
+         OR ((a BETWEEN 39 AND 41) AND a!=40)
+         OR ((a BETWEEN 80 AND 82) AND a!=81)
+         OR b=715
+         OR ((a BETWEEN 93 AND 95) AND a!=94)
+         OR a=6
+         OR ((a BETWEEN 59 AND 61) AND a!=60)
+  }
+} {6 16 33 37 39 40 41 42 59 61 65 80 82 93 95 scan 0 sort 0}
+do_test where7-2.402.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=89
+         OR b=1037
+         OR (g='mlkjihg' AND f GLOB 'ijklm*')
+  }
+} {60 89 scan 0 sort 0}
+do_test where7-2.402.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=89
+         OR b=1037
+         OR (g='mlkjihg' AND f GLOB 'ijklm*')
+  }
+} {60 89 scan 0 sort 0}
+do_test where7-2.403.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=97.0 AND d<98.0 AND d NOT NULL)
+         OR ((a BETWEEN 44 AND 46) AND a!=45)
+         OR (d>=28.0 AND d<29.0 AND d NOT NULL)
+         OR b=663
+         OR b=531
+         OR b=146
+         OR b=102
+         OR ((a BETWEEN 87 AND 89) AND a!=88)
+         OR ((a BETWEEN 87 AND 89) AND a!=88)
+         OR a=26
+  }
+} {26 28 44 46 87 89 97 scan 0 sort 0}
+do_test where7-2.403.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=97.0 AND d<98.0 AND d NOT NULL)
+         OR ((a BETWEEN 44 AND 46) AND a!=45)
+         OR (d>=28.0 AND d<29.0 AND d NOT NULL)
+         OR b=663
+         OR b=531
+         OR b=146
+         OR b=102
+         OR ((a BETWEEN 87 AND 89) AND a!=88)
+         OR ((a BETWEEN 87 AND 89) AND a!=88)
+         OR a=26
+  }
+} {26 28 44 46 87 89 97 scan 0 sort 0}
+do_test where7-2.404.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='kjihgfe' AND f GLOB 'stuvw*')
+         OR (g='rqponml' AND f GLOB 'jklmn*')
+         OR (g='lkjihgf' AND f GLOB 'mnopq*')
+         OR b=726
+         OR ((a BETWEEN 73 AND 75) AND a!=74)
+         OR (d>=12.0 AND d<13.0 AND d NOT NULL)
+         OR c=2002
+         OR c=15015
+         OR (d>=75.0 AND d<76.0 AND d NOT NULL)
+         OR b=201
+  }
+} {4 5 6 12 35 43 44 45 64 66 70 73 75 scan 0 sort 0}
+do_test where7-2.404.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='kjihgfe' AND f GLOB 'stuvw*')
+         OR (g='rqponml' AND f GLOB 'jklmn*')
+         OR (g='lkjihgf' AND f GLOB 'mnopq*')
+         OR b=726
+         OR ((a BETWEEN 73 AND 75) AND a!=74)
+         OR (d>=12.0 AND d<13.0 AND d NOT NULL)
+         OR c=2002
+         OR c=15015
+         OR (d>=75.0 AND d<76.0 AND d NOT NULL)
+         OR b=201
+  }
+} {4 5 6 12 35 43 44 45 64 66 70 73 75 scan 0 sort 0}
+do_test where7-2.405.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='kjihgfe' AND f GLOB 'uvwxy*')
+         OR b=924
+         OR f='lmnopqrst'
+         OR b=1048
+  }
+} {11 37 63 72 84 89 scan 0 sort 0}
+do_test where7-2.405.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='kjihgfe' AND f GLOB 'uvwxy*')
+         OR b=924
+         OR f='lmnopqrst'
+         OR b=1048
+  }
+} {11 37 63 72 84 89 scan 0 sort 0}
+do_test where7-2.406.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=63.0 AND d<64.0 AND d NOT NULL)
+         OR (g='wvutsrq' AND f GLOB 'mnopq*')
+         OR b=198
+         OR (d>=58.0 AND d<59.0 AND d NOT NULL)
+         OR ((a BETWEEN 12 AND 14) AND a!=13)
+         OR ((a BETWEEN 20 AND 22) AND a!=21)
+         OR b=286
+         OR ((a BETWEEN 65 AND 67) AND a!=66)
+  }
+} {12 14 18 20 22 26 58 63 65 67 scan 0 sort 0}
+do_test where7-2.406.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=63.0 AND d<64.0 AND d NOT NULL)
+         OR (g='wvutsrq' AND f GLOB 'mnopq*')
+         OR b=198
+         OR (d>=58.0 AND d<59.0 AND d NOT NULL)
+         OR ((a BETWEEN 12 AND 14) AND a!=13)
+         OR ((a BETWEEN 20 AND 22) AND a!=21)
+         OR b=286
+         OR ((a BETWEEN 65 AND 67) AND a!=66)
+  }
+} {12 14 18 20 22 26 58 63 65 67 scan 0 sort 0}
+do_test where7-2.407.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=242
+         OR (d>=17.0 AND d<18.0 AND d NOT NULL)
+         OR (d>=99.0 AND d<100.0 AND d NOT NULL)
+         OR ((a BETWEEN 57 AND 59) AND a!=58)
+         OR f='bcdefghij'
+         OR ((a BETWEEN 17 AND 19) AND a!=18)
+         OR (d>=88.0 AND d<89.0 AND d NOT NULL)
+         OR a=38
+         OR b=187
+  }
+} {1 17 19 22 27 38 53 57 59 79 88 99 scan 0 sort 0}
+do_test where7-2.407.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=242
+         OR (d>=17.0 AND d<18.0 AND d NOT NULL)
+         OR (d>=99.0 AND d<100.0 AND d NOT NULL)
+         OR ((a BETWEEN 57 AND 59) AND a!=58)
+         OR f='bcdefghij'
+         OR ((a BETWEEN 17 AND 19) AND a!=18)
+         OR (d>=88.0 AND d<89.0 AND d NOT NULL)
+         OR a=38
+         OR b=187
+  }
+} {1 17 19 22 27 38 53 57 59 79 88 99 scan 0 sort 0}
+do_test where7-2.408.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=10.0 AND d<11.0 AND d NOT NULL)
+         OR b=630
+         OR a=55
+         OR c=26026
+         OR (g='kjihgfe' AND f GLOB 'qrstu*')
+         OR (d>=23.0 AND d<24.0 AND d NOT NULL)
+  }
+} {10 23 55 68 76 77 78 scan 0 sort 0}
+do_test where7-2.408.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=10.0 AND d<11.0 AND d NOT NULL)
+         OR b=630
+         OR a=55
+         OR c=26026
+         OR (g='kjihgfe' AND f GLOB 'qrstu*')
+         OR (d>=23.0 AND d<24.0 AND d NOT NULL)
+  }
+} {10 23 55 68 76 77 78 scan 0 sort 0}
+do_test where7-2.409.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f='uvwxyzabc'
+         OR f='xyzabcdef'
+         OR (g='ihgfedc' AND f GLOB 'bcdef*')
+         OR (d>=70.0 AND d<71.0 AND d NOT NULL)
+         OR ((a BETWEEN 51 AND 53) AND a!=52)
+         OR (d>=31.0 AND d<32.0 AND d NOT NULL)
+         OR b=69
+         OR (f GLOB '?jklm*' AND f GLOB 'ijkl*')
+  }
+} {8 20 23 31 34 46 49 51 53 60 70 72 75 79 86 98 scan 0 sort 0}
+do_test where7-2.409.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f='uvwxyzabc'
+         OR f='xyzabcdef'
+         OR (g='ihgfedc' AND f GLOB 'bcdef*')
+         OR (d>=70.0 AND d<71.0 AND d NOT NULL)
+         OR ((a BETWEEN 51 AND 53) AND a!=52)
+         OR (d>=31.0 AND d<32.0 AND d NOT NULL)
+         OR b=69
+         OR (f GLOB '?jklm*' AND f GLOB 'ijkl*')
+  }
+} {8 20 23 31 34 46 49 51 53 60 70 72 75 79 86 98 scan 0 sort 0}
+do_test where7-2.410.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=1026
+         OR b=454
+         OR ((a BETWEEN 92 AND 94) AND a!=93)
+         OR b=179
+         OR (f GLOB '?bcde*' AND f GLOB 'abcd*')
+         OR f='qrstuvwxy'
+  }
+} {16 26 42 52 68 78 92 94 scan 0 sort 0}
+do_test where7-2.410.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=1026
+         OR b=454
+         OR ((a BETWEEN 92 AND 94) AND a!=93)
+         OR b=179
+         OR (f GLOB '?bcde*' AND f GLOB 'abcd*')
+         OR f='qrstuvwxy'
+  }
+} {16 26 42 52 68 78 92 94 scan 0 sort 0}
+do_test where7-2.411.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 6 AND 8) AND a!=7)
+         OR b=619
+         OR a=20
+         OR (g='vutsrqp' AND f GLOB 'nopqr*')
+         OR b=946
+         OR (d>=61.0 AND d<62.0 AND d NOT NULL)
+         OR a=64
+         OR ((a BETWEEN 17 AND 19) AND a!=18)
+         OR b=1001
+         OR b=858
+  }
+} {6 8 13 17 19 20 61 64 78 86 91 scan 0 sort 0}
+do_test where7-2.411.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 6 AND 8) AND a!=7)
+         OR b=619
+         OR a=20
+         OR (g='vutsrqp' AND f GLOB 'nopqr*')
+         OR b=946
+         OR (d>=61.0 AND d<62.0 AND d NOT NULL)
+         OR a=64
+         OR ((a BETWEEN 17 AND 19) AND a!=18)
+         OR b=1001
+         OR b=858
+  }
+} {6 8 13 17 19 20 61 64 78 86 91 scan 0 sort 0}
+do_test where7-2.412.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=902
+         OR (d>=27.0 AND d<28.0 AND d NOT NULL)
+         OR a=86
+         OR (d>=97.0 AND d<98.0 AND d NOT NULL)
+  }
+} {27 82 86 97 scan 0 sort 0}
+do_test where7-2.412.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=902
+         OR (d>=27.0 AND d<28.0 AND d NOT NULL)
+         OR a=86
+         OR (d>=97.0 AND d<98.0 AND d NOT NULL)
+  }
+} {27 82 86 97 scan 0 sort 0}
+do_test where7-2.413.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=56.0 AND d<57.0 AND d NOT NULL)
+         OR a=32
+         OR (g='qponmlk' AND f GLOB 'mnopq*')
+         OR (g='xwvutsr' AND f GLOB 'efghi*')
+         OR c=32032
+  }
+} {4 32 38 56 94 95 96 scan 0 sort 0}
+do_test where7-2.413.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=56.0 AND d<57.0 AND d NOT NULL)
+         OR a=32
+         OR (g='qponmlk' AND f GLOB 'mnopq*')
+         OR (g='xwvutsr' AND f GLOB 'efghi*')
+         OR c=32032
+  }
+} {4 32 38 56 94 95 96 scan 0 sort 0}
+do_test where7-2.414.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=168
+         OR c=2002
+         OR b=77
+         OR (d>=27.0 AND d<28.0 AND d NOT NULL)
+         OR f='qrstuvwxy'
+  }
+} {4 5 6 7 16 27 42 68 94 scan 0 sort 0}
+do_test where7-2.414.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=168
+         OR c=2002
+         OR b=77
+         OR (d>=27.0 AND d<28.0 AND d NOT NULL)
+         OR f='qrstuvwxy'
+  }
+} {4 5 6 7 16 27 42 68 94 scan 0 sort 0}
+do_test where7-2.415.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f='abcdefghi'
+         OR b=506
+  }
+} {26 46 52 78 scan 0 sort 0}
+do_test where7-2.415.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f='abcdefghi'
+         OR b=506
+  }
+} {26 46 52 78 scan 0 sort 0}
+do_test where7-2.416.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=264
+         OR c=34034
+         OR a=96
+  }
+} {24 96 100 scan 0 sort 0}
+do_test where7-2.416.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=264
+         OR c=34034
+         OR a=96
+  }
+} {24 96 100 scan 0 sort 0}
+do_test where7-2.417.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=32.0 AND d<33.0 AND d NOT NULL)
+         OR a=27
+         OR ((a BETWEEN 55 AND 57) AND a!=56)
+         OR (g='utsrqpo' AND f GLOB 'tuvwx*')
+  }
+} {19 27 32 55 57 scan 0 sort 0}
+do_test where7-2.417.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=32.0 AND d<33.0 AND d NOT NULL)
+         OR a=27
+         OR ((a BETWEEN 55 AND 57) AND a!=56)
+         OR (g='utsrqpo' AND f GLOB 'tuvwx*')
+  }
+} {19 27 32 55 57 scan 0 sort 0}
+do_test where7-2.418.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=74.0 AND d<75.0 AND d NOT NULL)
+         OR b=77
+  }
+} {7 74 scan 0 sort 0}
+do_test where7-2.418.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=74.0 AND d<75.0 AND d NOT NULL)
+         OR b=77
+  }
+} {7 74 scan 0 sort 0}
+do_test where7-2.419.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=27027
+         OR f='vwxyzabcd'
+         OR b=1048
+         OR a=96
+         OR a=99
+         OR ((a BETWEEN 56 AND 58) AND a!=57)
+         OR b=561
+         OR b=352
+         OR (d>=37.0 AND d<38.0 AND d NOT NULL)
+         OR (g='utsrqpo' AND f GLOB 'stuvw*')
+         OR a=95
+  }
+} {18 21 32 37 47 51 56 58 73 79 80 81 95 96 99 scan 0 sort 0}
+do_test where7-2.419.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=27027
+         OR f='vwxyzabcd'
+         OR b=1048
+         OR a=96
+         OR a=99
+         OR ((a BETWEEN 56 AND 58) AND a!=57)
+         OR b=561
+         OR b=352
+         OR (d>=37.0 AND d<38.0 AND d NOT NULL)
+         OR (g='utsrqpo' AND f GLOB 'stuvw*')
+         OR a=95
+  }
+} {18 21 32 37 47 51 56 58 73 79 80 81 95 96 99 scan 0 sort 0}
+do_test where7-2.420.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=275
+         OR ((a BETWEEN 10 AND 12) AND a!=11)
+         OR f='ghijklmno'
+         OR b=619
+         OR (g='edcbazy' AND f GLOB 'vwxyz*')
+         OR ((a BETWEEN 91 AND 93) AND a!=92)
+         OR b=476
+         OR a=83
+         OR ((a BETWEEN 47 AND 49) AND a!=48)
+  }
+} {6 10 12 25 32 47 49 58 83 84 91 93 99 scan 0 sort 0}
+do_test where7-2.420.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=275
+         OR ((a BETWEEN 10 AND 12) AND a!=11)
+         OR f='ghijklmno'
+         OR b=619
+         OR (g='edcbazy' AND f GLOB 'vwxyz*')
+         OR ((a BETWEEN 91 AND 93) AND a!=92)
+         OR b=476
+         OR a=83
+         OR ((a BETWEEN 47 AND 49) AND a!=48)
+  }
+} {6 10 12 25 32 47 49 58 83 84 91 93 99 scan 0 sort 0}
+do_test where7-2.421.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=542
+         OR a=17
+         OR f='jklmnopqr'
+         OR ((a BETWEEN 5 AND 7) AND a!=6)
+         OR (d>=39.0 AND d<40.0 AND d NOT NULL)
+         OR a=23
+         OR (d>=25.0 AND d<26.0 AND d NOT NULL)
+  }
+} {5 7 9 17 23 25 35 39 61 87 scan 0 sort 0}
+do_test where7-2.421.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=542
+         OR a=17
+         OR f='jklmnopqr'
+         OR ((a BETWEEN 5 AND 7) AND a!=6)
+         OR (d>=39.0 AND d<40.0 AND d NOT NULL)
+         OR a=23
+         OR (d>=25.0 AND d<26.0 AND d NOT NULL)
+  }
+} {5 7 9 17 23 25 35 39 61 87 scan 0 sort 0}
+do_test where7-2.422.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=74.0 AND d<75.0 AND d NOT NULL)
+         OR b=363
+         OR b=454
+  }
+} {33 74 scan 0 sort 0}
+do_test where7-2.422.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=74.0 AND d<75.0 AND d NOT NULL)
+         OR b=363
+         OR b=454
+  }
+} {33 74 scan 0 sort 0}
+do_test where7-2.423.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=1059
+         OR (g='jihgfed' AND f GLOB 'yzabc*')
+         OR (g='rqponml' AND f GLOB 'jklmn*')
+         OR b=47
+         OR b=660
+         OR ((a BETWEEN 34 AND 36) AND a!=35)
+         OR a=84
+  }
+} {34 35 36 60 76 84 scan 0 sort 0}
+do_test where7-2.423.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=1059
+         OR (g='jihgfed' AND f GLOB 'yzabc*')
+         OR (g='rqponml' AND f GLOB 'jklmn*')
+         OR b=47
+         OR b=660
+         OR ((a BETWEEN 34 AND 36) AND a!=35)
+         OR a=84
+  }
+} {34 35 36 60 76 84 scan 0 sort 0}
+do_test where7-2.424.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f='ghijklmno'
+         OR b=1012
+  }
+} {6 32 58 84 92 scan 0 sort 0}
+do_test where7-2.424.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f='ghijklmno'
+         OR b=1012
+  }
+} {6 32 58 84 92 scan 0 sort 0}
+do_test where7-2.425.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=597
+         OR f='lmnopqrst'
+         OR a=24
+         OR (g='fedcbaz' AND f GLOB 'stuvw*')
+         OR ((a BETWEEN 31 AND 33) AND a!=32)
+         OR b=1023
+         OR a=53
+         OR a=78
+         OR f='efghijklm'
+         OR (g='rqponml' AND f GLOB 'lmnop*')
+         OR (d>=85.0 AND d<86.0 AND d NOT NULL)
+  }
+} {4 11 24 30 31 33 37 53 56 63 78 82 85 89 93 96 scan 0 sort 0}
+do_test where7-2.425.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=597
+         OR f='lmnopqrst'
+         OR a=24
+         OR (g='fedcbaz' AND f GLOB 'stuvw*')
+         OR ((a BETWEEN 31 AND 33) AND a!=32)
+         OR b=1023
+         OR a=53
+         OR a=78
+         OR f='efghijklm'
+         OR (g='rqponml' AND f GLOB 'lmnop*')
+         OR (d>=85.0 AND d<86.0 AND d NOT NULL)
+  }
+} {4 11 24 30 31 33 37 53 56 63 78 82 85 89 93 96 scan 0 sort 0}
+do_test where7-2.426.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=198
+         OR (d>=94.0 AND d<95.0 AND d NOT NULL)
+         OR b=388
+  }
+} {18 94 scan 0 sort 0}
+do_test where7-2.426.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=198
+         OR (d>=94.0 AND d<95.0 AND d NOT NULL)
+         OR b=388
+  }
+} {18 94 scan 0 sort 0}
+do_test where7-2.427.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f='tuvwxyzab'
+         OR b=388
+         OR ((a BETWEEN 84 AND 86) AND a!=85)
+         OR (g='fedcbaz' AND f GLOB 'stuvw*')
+         OR b=957
+         OR b=663
+         OR b=847
+         OR (g='jihgfed' AND f GLOB 'vwxyz*')
+  }
+} {19 45 71 73 77 84 86 87 96 97 scan 0 sort 0}
+do_test where7-2.427.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f='tuvwxyzab'
+         OR b=388
+         OR ((a BETWEEN 84 AND 86) AND a!=85)
+         OR (g='fedcbaz' AND f GLOB 'stuvw*')
+         OR b=957
+         OR b=663
+         OR b=847
+         OR (g='jihgfed' AND f GLOB 'vwxyz*')
+  }
+} {19 45 71 73 77 84 86 87 96 97 scan 0 sort 0}
+do_test where7-2.428.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=81.0 AND d<82.0 AND d NOT NULL)
+         OR a=56
+         OR (g='hgfedcb' AND f GLOB 'ghijk*')
+  }
+} {56 81 84 scan 0 sort 0}
+do_test where7-2.428.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=81.0 AND d<82.0 AND d NOT NULL)
+         OR a=56
+         OR (g='hgfedcb' AND f GLOB 'ghijk*')
+  }
+} {56 81 84 scan 0 sort 0}
+do_test where7-2.429.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c>=34035
+         OR b=168
+         OR (d>=89.0 AND d<90.0 AND d NOT NULL)
+         OR (f GLOB '?cdef*' AND f GLOB 'bcde*')
+  }
+} {1 27 53 79 89 scan 0 sort 0}
+do_test where7-2.429.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c>=34035
+         OR b=168
+         OR (d>=89.0 AND d<90.0 AND d NOT NULL)
+         OR (f GLOB '?cdef*' AND f GLOB 'bcde*')
+  }
+} {1 27 53 79 89 scan 0 sort 0}
+do_test where7-2.430.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 79 AND 81) AND a!=80)
+         OR b=564
+         OR c=6006
+         OR b=979
+  }
+} {16 17 18 79 81 89 scan 0 sort 0}
+do_test where7-2.430.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 79 AND 81) AND a!=80)
+         OR b=564
+         OR c=6006
+         OR b=979
+  }
+} {16 17 18 79 81 89 scan 0 sort 0}
+do_test where7-2.431.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=29.0 AND d<30.0 AND d NOT NULL)
+         OR (g='qponmlk' AND f GLOB 'opqrs*')
+         OR f='rstuvwxyz'
+         OR (g='qponmlk' AND f GLOB 'nopqr*')
+  }
+} {17 29 39 40 43 69 95 scan 0 sort 0}
+do_test where7-2.431.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=29.0 AND d<30.0 AND d NOT NULL)
+         OR (g='qponmlk' AND f GLOB 'opqrs*')
+         OR f='rstuvwxyz'
+         OR (g='qponmlk' AND f GLOB 'nopqr*')
+  }
+} {17 29 39 40 43 69 95 scan 0 sort 0}
+do_test where7-2.432.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=58
+         OR b=484
+         OR (d>=68.0 AND d<69.0 AND d NOT NULL)
+         OR b=671
+         OR a=69
+  }
+} {44 61 68 69 scan 0 sort 0}
+do_test where7-2.432.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=58
+         OR b=484
+         OR (d>=68.0 AND d<69.0 AND d NOT NULL)
+         OR b=671
+         OR a=69
+  }
+} {44 61 68 69 scan 0 sort 0}
+do_test where7-2.433.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f='mnopqrstu'
+         OR (d>=73.0 AND d<74.0 AND d NOT NULL)
+         OR b=861
+         OR b=77
+         OR f='qrstuvwxy'
+  }
+} {7 12 16 38 42 64 68 73 90 94 scan 0 sort 0}
+do_test where7-2.433.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f='mnopqrstu'
+         OR (d>=73.0 AND d<74.0 AND d NOT NULL)
+         OR b=861
+         OR b=77
+         OR f='qrstuvwxy'
+  }
+} {7 12 16 38 42 64 68 73 90 94 scan 0 sort 0}
+do_test where7-2.434.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=113
+         OR (d>=51.0 AND d<52.0 AND d NOT NULL)
+         OR b=113
+         OR (g='xwvutsr' AND f GLOB 'efghi*')
+         OR ((a BETWEEN 62 AND 64) AND a!=63)
+         OR c=6006
+         OR (d>=14.0 AND d<15.0 AND d NOT NULL)
+         OR b=946
+         OR a=86
+  }
+} {4 14 16 17 18 51 62 64 86 scan 0 sort 0}
+do_test where7-2.434.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=113
+         OR (d>=51.0 AND d<52.0 AND d NOT NULL)
+         OR b=113
+         OR (g='xwvutsr' AND f GLOB 'efghi*')
+         OR ((a BETWEEN 62 AND 64) AND a!=63)
+         OR c=6006
+         OR (d>=14.0 AND d<15.0 AND d NOT NULL)
+         OR b=946
+         OR a=86
+  }
+} {4 14 16 17 18 51 62 64 86 scan 0 sort 0}
+do_test where7-2.435.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='hgfedcb' AND f GLOB 'hijkl*')
+         OR ((a BETWEEN 8 AND 10) AND a!=9)
+         OR c=22022
+         OR ((a BETWEEN 79 AND 81) AND a!=80)
+         OR (d>=79.0 AND d<80.0 AND d NOT NULL)
+         OR c=25025
+  }
+} {8 10 64 65 66 73 74 75 79 81 85 scan 0 sort 0}
+do_test where7-2.435.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='hgfedcb' AND f GLOB 'hijkl*')
+         OR ((a BETWEEN 8 AND 10) AND a!=9)
+         OR c=22022
+         OR ((a BETWEEN 79 AND 81) AND a!=80)
+         OR (d>=79.0 AND d<80.0 AND d NOT NULL)
+         OR c=25025
+  }
+} {8 10 64 65 66 73 74 75 79 81 85 scan 0 sort 0}
+do_test where7-2.436.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 74 AND 76) AND a!=75)
+         OR (f GLOB '?pqrs*' AND f GLOB 'opqr*')
+         OR b=47
+         OR ((a BETWEEN 44 AND 46) AND a!=45)
+         OR a=92
+         OR b=795
+         OR b=25
+         OR c=7007
+         OR a=93
+         OR ((a BETWEEN 93 AND 95) AND a!=94)
+         OR (g='utsrqpo' AND f GLOB 'stuvw*')
+  }
+} {14 18 19 20 21 40 44 46 66 74 76 92 93 95 scan 0 sort 0}
+do_test where7-2.436.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 74 AND 76) AND a!=75)
+         OR (f GLOB '?pqrs*' AND f GLOB 'opqr*')
+         OR b=47
+         OR ((a BETWEEN 44 AND 46) AND a!=45)
+         OR a=92
+         OR b=795
+         OR b=25
+         OR c=7007
+         OR a=93
+         OR ((a BETWEEN 93 AND 95) AND a!=94)
+         OR (g='utsrqpo' AND f GLOB 'stuvw*')
+  }
+} {14 18 19 20 21 40 44 46 66 74 76 92 93 95 scan 0 sort 0}
+do_test where7-2.437.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='kjihgfe' AND f GLOB 'uvwxy*')
+         OR a=13
+         OR (g='fedcbaz' AND f GLOB 'qrstu*')
+         OR (d>=66.0 AND d<67.0 AND d NOT NULL)
+         OR (g='xwvutsr' AND f GLOB 'ghijk*')
+         OR c=29029
+         OR b=311
+         OR b=366
+         OR a=94
+         OR a=72
+  }
+} {6 13 66 72 85 86 87 94 scan 0 sort 0}
+do_test where7-2.437.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='kjihgfe' AND f GLOB 'uvwxy*')
+         OR a=13
+         OR (g='fedcbaz' AND f GLOB 'qrstu*')
+         OR (d>=66.0 AND d<67.0 AND d NOT NULL)
+         OR (g='xwvutsr' AND f GLOB 'ghijk*')
+         OR c=29029
+         OR b=311
+         OR b=366
+         OR a=94
+         OR a=72
+  }
+} {6 13 66 72 85 86 87 94 scan 0 sort 0}
+do_test where7-2.438.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=26026
+         OR a=96
+         OR a=22
+         OR b=341
+         OR (d>=25.0 AND d<26.0 AND d NOT NULL)
+         OR b=872
+         OR (d>=2.0 AND d<3.0 AND d NOT NULL)
+         OR ((a BETWEEN 25 AND 27) AND a!=26)
+  }
+} {2 22 25 27 31 76 77 78 96 scan 0 sort 0}
+do_test where7-2.438.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=26026
+         OR a=96
+         OR a=22
+         OR b=341
+         OR (d>=25.0 AND d<26.0 AND d NOT NULL)
+         OR b=872
+         OR (d>=2.0 AND d<3.0 AND d NOT NULL)
+         OR ((a BETWEEN 25 AND 27) AND a!=26)
+  }
+} {2 22 25 27 31 76 77 78 96 scan 0 sort 0}
+do_test where7-2.439.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=82.0 AND d<83.0 AND d NOT NULL)
+         OR (d>=36.0 AND d<37.0 AND d NOT NULL)
+         OR (g='tsrqpon' AND f GLOB 'xyzab*')
+         OR (d>=36.0 AND d<37.0 AND d NOT NULL)
+         OR ((a BETWEEN 63 AND 65) AND a!=64)
+         OR a=41
+         OR (g='xwvutsr' AND f GLOB 'ghijk*')
+         OR (g='onmlkji' AND f GLOB 'zabcd*')
+         OR b=913
+  }
+} {6 23 36 41 51 63 65 82 83 scan 0 sort 0}
+do_test where7-2.439.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=82.0 AND d<83.0 AND d NOT NULL)
+         OR (d>=36.0 AND d<37.0 AND d NOT NULL)
+         OR (g='tsrqpon' AND f GLOB 'xyzab*')
+         OR (d>=36.0 AND d<37.0 AND d NOT NULL)
+         OR ((a BETWEEN 63 AND 65) AND a!=64)
+         OR a=41
+         OR (g='xwvutsr' AND f GLOB 'ghijk*')
+         OR (g='onmlkji' AND f GLOB 'zabcd*')
+         OR b=913
+  }
+} {6 23 36 41 51 63 65 82 83 scan 0 sort 0}
+do_test where7-2.440.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 42 AND 44) AND a!=43)
+         OR a=90
+  }
+} {42 44 90 scan 0 sort 0}
+do_test where7-2.440.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 42 AND 44) AND a!=43)
+         OR a=90
+  }
+} {42 44 90 scan 0 sort 0}
+do_test where7-2.441.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=44.0 AND d<45.0 AND d NOT NULL)
+         OR (d>=21.0 AND d<22.0 AND d NOT NULL)
+         OR b=484
+  }
+} {21 44 scan 0 sort 0}
+do_test where7-2.441.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=44.0 AND d<45.0 AND d NOT NULL)
+         OR (d>=21.0 AND d<22.0 AND d NOT NULL)
+         OR b=484
+  }
+} {21 44 scan 0 sort 0}
+do_test where7-2.442.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=22.0 AND d<23.0 AND d NOT NULL)
+         OR b=377
+         OR b=363
+         OR ((a BETWEEN 55 AND 57) AND a!=56)
+         OR b=737
+         OR (d>=100.0 AND d<101.0 AND d NOT NULL)
+         OR b=506
+         OR (d>=25.0 AND d<26.0 AND d NOT NULL)
+         OR a=16
+  }
+} {16 22 25 33 46 55 57 67 100 scan 0 sort 0}
+do_test where7-2.442.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=22.0 AND d<23.0 AND d NOT NULL)
+         OR b=377
+         OR b=363
+         OR ((a BETWEEN 55 AND 57) AND a!=56)
+         OR b=737
+         OR (d>=100.0 AND d<101.0 AND d NOT NULL)
+         OR b=506
+         OR (d>=25.0 AND d<26.0 AND d NOT NULL)
+         OR a=16
+  }
+} {16 22 25 33 46 55 57 67 100 scan 0 sort 0}
+do_test where7-2.443.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='jihgfed' AND f GLOB 'zabcd*')
+         OR b=102
+         OR b=212
+         OR (d>=37.0 AND d<38.0 AND d NOT NULL)
+         OR b=487
+         OR (g='ihgfedc' AND f GLOB 'efghi*')
+  }
+} {37 77 82 scan 0 sort 0}
+do_test where7-2.443.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='jihgfed' AND f GLOB 'zabcd*')
+         OR b=102
+         OR b=212
+         OR (d>=37.0 AND d<38.0 AND d NOT NULL)
+         OR b=487
+         OR (g='ihgfedc' AND f GLOB 'efghi*')
+  }
+} {37 77 82 scan 0 sort 0}
+do_test where7-2.444.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=154
+         OR a=51
+         OR b=520
+  }
+} {14 51 scan 0 sort 0}
+do_test where7-2.444.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=154
+         OR a=51
+         OR b=520
+  }
+} {14 51 scan 0 sort 0}
+do_test where7-2.445.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=872
+         OR ((a BETWEEN 58 AND 60) AND a!=59)
+         OR (f GLOB '?wxyz*' AND f GLOB 'vwxy*')
+         OR b=957
+         OR (d>=42.0 AND d<43.0 AND d NOT NULL)
+         OR a=67
+         OR a=72
+  }
+} {21 42 47 58 60 67 72 73 87 99 scan 0 sort 0}
+do_test where7-2.445.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=872
+         OR ((a BETWEEN 58 AND 60) AND a!=59)
+         OR (f GLOB '?wxyz*' AND f GLOB 'vwxy*')
+         OR b=957
+         OR (d>=42.0 AND d<43.0 AND d NOT NULL)
+         OR a=67
+         OR a=72
+  }
+} {21 42 47 58 60 67 72 73 87 99 scan 0 sort 0}
+do_test where7-2.446.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=66
+         OR b=102
+         OR b=396
+         OR (g='vutsrqp' AND f GLOB 'opqrs*')
+         OR ((a BETWEEN 7 AND 9) AND a!=8)
+         OR b=759
+         OR (g='edcbazy' AND f GLOB 'wxyza*')
+         OR f='ghijklmno'
+         OR (g='edcbazy' AND f GLOB 'wxyza*')
+         OR ((a BETWEEN 90 AND 92) AND a!=91)
+         OR (d>=97.0 AND d<98.0 AND d NOT NULL)
+  }
+} {6 7 9 14 32 36 58 69 84 90 92 97 100 scan 0 sort 0}
+do_test where7-2.446.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=66
+         OR b=102
+         OR b=396
+         OR (g='vutsrqp' AND f GLOB 'opqrs*')
+         OR ((a BETWEEN 7 AND 9) AND a!=8)
+         OR b=759
+         OR (g='edcbazy' AND f GLOB 'wxyza*')
+         OR f='ghijklmno'
+         OR (g='edcbazy' AND f GLOB 'wxyza*')
+         OR ((a BETWEEN 90 AND 92) AND a!=91)
+         OR (d>=97.0 AND d<98.0 AND d NOT NULL)
+  }
+} {6 7 9 14 32 36 58 69 84 90 92 97 100 scan 0 sort 0}
+do_test where7-2.447.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 69 AND 71) AND a!=70)
+         OR (f GLOB '?zabc*' AND f GLOB 'yzab*')
+         OR (g='onmlkji' AND f GLOB 'wxyza*')
+         OR a=72
+         OR b=1100
+         OR b=102
+         OR b=135
+  }
+} {24 48 50 69 71 72 76 100 scan 0 sort 0}
+do_test where7-2.447.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 69 AND 71) AND a!=70)
+         OR (f GLOB '?zabc*' AND f GLOB 'yzab*')
+         OR (g='onmlkji' AND f GLOB 'wxyza*')
+         OR a=72
+         OR b=1100
+         OR b=102
+         OR b=135
+  }
+} {24 48 50 69 71 72 76 100 scan 0 sort 0}
+do_test where7-2.448.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=99
+         OR a=76
+  }
+} {9 76 scan 0 sort 0}
+do_test where7-2.448.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=99
+         OR a=76
+  }
+} {9 76 scan 0 sort 0}
+do_test where7-2.449.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=891
+         OR b=806
+         OR (d>=19.0 AND d<20.0 AND d NOT NULL)
+         OR ((a BETWEEN 85 AND 87) AND a!=86)
+         OR b=861
+         OR ((a BETWEEN 82 AND 84) AND a!=83)
+         OR (d>=34.0 AND d<35.0 AND d NOT NULL)
+  }
+} {19 34 81 82 84 85 87 scan 0 sort 0}
+do_test where7-2.449.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=891
+         OR b=806
+         OR (d>=19.0 AND d<20.0 AND d NOT NULL)
+         OR ((a BETWEEN 85 AND 87) AND a!=86)
+         OR b=861
+         OR ((a BETWEEN 82 AND 84) AND a!=83)
+         OR (d>=34.0 AND d<35.0 AND d NOT NULL)
+  }
+} {19 34 81 82 84 85 87 scan 0 sort 0}
+do_test where7-2.450.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=1034
+         OR b=91
+  }
+} {94 scan 0 sort 0}
+do_test where7-2.450.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=1034
+         OR b=91
+  }
+} {94 scan 0 sort 0}
+do_test where7-2.451.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=47
+         OR a=91
+         OR d>1e10
+         OR (g='srqponm' AND f GLOB 'cdefg*')
+  }
+} {28 91 scan 0 sort 0}
+do_test where7-2.451.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=47
+         OR a=91
+         OR d>1e10
+         OR (g='srqponm' AND f GLOB 'cdefg*')
+  }
+} {28 91 scan 0 sort 0}
+do_test where7-2.452.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=1023
+         OR f='zabcdefgh'
+         OR b=451
+         OR b=443
+         OR c>=34035
+         OR b=58
+  }
+} {25 41 51 77 93 scan 0 sort 0}
+do_test where7-2.452.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=1023
+         OR f='zabcdefgh'
+         OR b=451
+         OR b=443
+         OR c>=34035
+         OR b=58
+  }
+} {25 41 51 77 93 scan 0 sort 0}
+do_test where7-2.453.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=971
+         OR b=36
+         OR a=11
+         OR f='hijklmnop'
+  }
+} {7 11 33 59 85 scan 0 sort 0}
+do_test where7-2.453.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=971
+         OR b=36
+         OR a=11
+         OR f='hijklmnop'
+  }
+} {7 11 33 59 85 scan 0 sort 0}
+do_test where7-2.454.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (f GLOB '?efgh*' AND f GLOB 'defg*')
+         OR b=619
+         OR ((a BETWEEN 91 AND 93) AND a!=92)
+         OR c=11011
+         OR b=550
+         OR b=1059
+         OR (g='hgfedcb' AND f GLOB 'ghijk*')
+         OR (d>=78.0 AND d<79.0 AND d NOT NULL)
+         OR (d>=18.0 AND d<19.0 AND d NOT NULL)
+         OR (d>=92.0 AND d<93.0 AND d NOT NULL)
+         OR b=737
+  }
+} {3 18 29 31 32 33 50 55 67 78 81 84 91 92 93 scan 0 sort 0}
+do_test where7-2.454.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (f GLOB '?efgh*' AND f GLOB 'defg*')
+         OR b=619
+         OR ((a BETWEEN 91 AND 93) AND a!=92)
+         OR c=11011
+         OR b=550
+         OR b=1059
+         OR (g='hgfedcb' AND f GLOB 'ghijk*')
+         OR (d>=78.0 AND d<79.0 AND d NOT NULL)
+         OR (d>=18.0 AND d<19.0 AND d NOT NULL)
+         OR (d>=92.0 AND d<93.0 AND d NOT NULL)
+         OR b=737
+  }
+} {3 18 29 31 32 33 50 55 67 78 81 84 91 92 93 scan 0 sort 0}
+do_test where7-2.455.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='edcbazy' AND f GLOB 'vwxyz*')
+         OR ((a BETWEEN 59 AND 61) AND a!=60)
+         OR (g='ihgfedc' AND f GLOB 'cdefg*')
+         OR a=78
+         OR a=27
+         OR b=792
+         OR b=946
+         OR c=22022
+         OR a=23
+         OR (f GLOB '?opqr*' AND f GLOB 'nopq*')
+         OR b=388
+  }
+} {13 23 27 39 59 61 64 65 66 72 78 80 86 91 99 scan 0 sort 0}
+do_test where7-2.455.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='edcbazy' AND f GLOB 'vwxyz*')
+         OR ((a BETWEEN 59 AND 61) AND a!=60)
+         OR (g='ihgfedc' AND f GLOB 'cdefg*')
+         OR a=78
+         OR a=27
+         OR b=792
+         OR b=946
+         OR c=22022
+         OR a=23
+         OR (f GLOB '?opqr*' AND f GLOB 'nopq*')
+         OR b=388
+  }
+} {13 23 27 39 59 61 64 65 66 72 78 80 86 91 99 scan 0 sort 0}
+do_test where7-2.456.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=32032
+         OR f IS NULL
+         OR ((a BETWEEN 37 AND 39) AND a!=38)
+         OR (g='jihgfed' AND f GLOB 'wxyza*')
+         OR (g='xwvutsr' AND f GLOB 'efghi*')
+         OR b=825
+  }
+} {4 37 39 74 75 94 95 96 scan 0 sort 0}
+do_test where7-2.456.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=32032
+         OR f IS NULL
+         OR ((a BETWEEN 37 AND 39) AND a!=38)
+         OR (g='jihgfed' AND f GLOB 'wxyza*')
+         OR (g='xwvutsr' AND f GLOB 'efghi*')
+         OR b=825
+  }
+} {4 37 39 74 75 94 95 96 scan 0 sort 0}
+do_test where7-2.457.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=84.0 AND d<85.0 AND d NOT NULL)
+         OR (f GLOB '?wxyz*' AND f GLOB 'vwxy*')
+         OR ((a BETWEEN 5 AND 7) AND a!=6)
+         OR (d>=54.0 AND d<55.0 AND d NOT NULL)
+         OR b=1078
+         OR b=198
+         OR (d>=67.0 AND d<68.0 AND d NOT NULL)
+         OR b=55
+         OR b=517
+         OR b=740
+  }
+} {5 7 18 21 47 54 67 73 84 98 99 scan 0 sort 0}
+do_test where7-2.457.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=84.0 AND d<85.0 AND d NOT NULL)
+         OR (f GLOB '?wxyz*' AND f GLOB 'vwxy*')
+         OR ((a BETWEEN 5 AND 7) AND a!=6)
+         OR (d>=54.0 AND d<55.0 AND d NOT NULL)
+         OR b=1078
+         OR b=198
+         OR (d>=67.0 AND d<68.0 AND d NOT NULL)
+         OR b=55
+         OR b=517
+         OR b=740
+  }
+} {5 7 18 21 47 54 67 73 84 98 99 scan 0 sort 0}
+do_test where7-2.458.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='wvutsrq' AND f GLOB 'ijklm*')
+         OR c=25025
+         OR b=550
+         OR (d>=22.0 AND d<23.0 AND d NOT NULL)
+         OR (g='nmlkjih' AND f GLOB 'bcdef*')
+  }
+} {8 22 50 53 73 74 75 scan 0 sort 0}
+do_test where7-2.458.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='wvutsrq' AND f GLOB 'ijklm*')
+         OR c=25025
+         OR b=550
+         OR (d>=22.0 AND d<23.0 AND d NOT NULL)
+         OR (g='nmlkjih' AND f GLOB 'bcdef*')
+  }
+} {8 22 50 53 73 74 75 scan 0 sort 0}
+do_test where7-2.459.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=432
+         OR f='opqrstuvw'
+         OR (g='kjihgfe' AND f GLOB 'qrstu*')
+  }
+} {14 40 66 68 92 scan 0 sort 0}
+do_test where7-2.459.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=432
+         OR f='opqrstuvw'
+         OR (g='kjihgfe' AND f GLOB 'qrstu*')
+  }
+} {14 40 66 68 92 scan 0 sort 0}
+do_test where7-2.460.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 14 AND 16) AND a!=15)
+         OR b=847
+         OR (f GLOB '?mnop*' AND f GLOB 'lmno*')
+         OR b=583
+         OR ((a BETWEEN 63 AND 65) AND a!=64)
+         OR (d>=26.0 AND d<27.0 AND d NOT NULL)
+         OR ((a BETWEEN 40 AND 42) AND a!=41)
+         OR (d>=75.0 AND d<76.0 AND d NOT NULL)
+         OR b=938
+  }
+} {11 14 16 26 37 40 42 53 63 65 75 77 89 scan 0 sort 0}
+do_test where7-2.460.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 14 AND 16) AND a!=15)
+         OR b=847
+         OR (f GLOB '?mnop*' AND f GLOB 'lmno*')
+         OR b=583
+         OR ((a BETWEEN 63 AND 65) AND a!=64)
+         OR (d>=26.0 AND d<27.0 AND d NOT NULL)
+         OR ((a BETWEEN 40 AND 42) AND a!=41)
+         OR (d>=75.0 AND d<76.0 AND d NOT NULL)
+         OR b=938
+  }
+} {11 14 16 26 37 40 42 53 63 65 75 77 89 scan 0 sort 0}
+do_test where7-2.461.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=671
+         OR a=56
+         OR (d>=49.0 AND d<50.0 AND d NOT NULL)
+         OR b=157
+         OR a=83
+         OR ((a BETWEEN 73 AND 75) AND a!=74)
+         OR c=21021
+         OR b=319
+         OR b=187
+         OR ((a BETWEEN 65 AND 67) AND a!=66)
+         OR b=839
+  }
+} {17 29 49 56 61 62 63 65 67 73 75 83 scan 0 sort 0}
+do_test where7-2.461.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=671
+         OR a=56
+         OR (d>=49.0 AND d<50.0 AND d NOT NULL)
+         OR b=157
+         OR a=83
+         OR ((a BETWEEN 73 AND 75) AND a!=74)
+         OR c=21021
+         OR b=319
+         OR b=187
+         OR ((a BETWEEN 65 AND 67) AND a!=66)
+         OR b=839
+  }
+} {17 29 49 56 61 62 63 65 67 73 75 83 scan 0 sort 0}
+do_test where7-2.462.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='kjihgfe' AND f GLOB 'uvwxy*')
+         OR b=586
+         OR d<0.0
+         OR c=9009
+  }
+} {25 26 27 72 scan 0 sort 0}
+do_test where7-2.462.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='kjihgfe' AND f GLOB 'uvwxy*')
+         OR b=586
+         OR d<0.0
+         OR c=9009
+  }
+} {25 26 27 72 scan 0 sort 0}
+do_test where7-2.463.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=82
+         OR a=34
+         OR f='jklmnopqr'
+         OR a=82
+         OR (d>=16.0 AND d<17.0 AND d NOT NULL)
+         OR b=454
+         OR b=355
+         OR c=21021
+         OR ((a BETWEEN 63 AND 65) AND a!=64)
+         OR a=30
+  }
+} {9 16 30 34 35 61 62 63 65 82 87 scan 0 sort 0}
+do_test where7-2.463.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=82
+         OR a=34
+         OR f='jklmnopqr'
+         OR a=82
+         OR (d>=16.0 AND d<17.0 AND d NOT NULL)
+         OR b=454
+         OR b=355
+         OR c=21021
+         OR ((a BETWEEN 63 AND 65) AND a!=64)
+         OR a=30
+  }
+} {9 16 30 34 35 61 62 63 65 82 87 scan 0 sort 0}
+do_test where7-2.464.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 44 AND 46) AND a!=45)
+         OR a=53
+         OR (d>=23.0 AND d<24.0 AND d NOT NULL)
+         OR (g='ponmlkj' AND f GLOB 'uvwxy*')
+         OR b=594
+         OR b=80
+         OR ((a BETWEEN 18 AND 20) AND a!=19)
+         OR (d>=49.0 AND d<50.0 AND d NOT NULL)
+         OR d>1e10
+  }
+} {18 20 23 44 46 49 53 54 scan 0 sort 0}
+do_test where7-2.464.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 44 AND 46) AND a!=45)
+         OR a=53
+         OR (d>=23.0 AND d<24.0 AND d NOT NULL)
+         OR (g='ponmlkj' AND f GLOB 'uvwxy*')
+         OR b=594
+         OR b=80
+         OR ((a BETWEEN 18 AND 20) AND a!=19)
+         OR (d>=49.0 AND d<50.0 AND d NOT NULL)
+         OR d>1e10
+  }
+} {18 20 23 44 46 49 53 54 scan 0 sort 0}
+do_test where7-2.465.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f='opqrstuvw'
+         OR a=7
+  }
+} {7 14 40 66 92 scan 0 sort 0}
+do_test where7-2.465.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f='opqrstuvw'
+         OR a=7
+  }
+} {7 14 40 66 92 scan 0 sort 0}
+do_test where7-2.466.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=627
+         OR ((a BETWEEN 75 AND 77) AND a!=76)
+         OR ((a BETWEEN 43 AND 45) AND a!=44)
+         OR a=90
+         OR (d>=33.0 AND d<34.0 AND d NOT NULL)
+  }
+} {33 43 45 57 75 77 90 scan 0 sort 0}
+do_test where7-2.466.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=627
+         OR ((a BETWEEN 75 AND 77) AND a!=76)
+         OR ((a BETWEEN 43 AND 45) AND a!=44)
+         OR a=90
+         OR (d>=33.0 AND d<34.0 AND d NOT NULL)
+  }
+} {33 43 45 57 75 77 90 scan 0 sort 0}
+do_test where7-2.467.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=59
+         OR ((a BETWEEN 69 AND 71) AND a!=70)
+         OR (d>=9.0 AND d<10.0 AND d NOT NULL)
+         OR (g='xwvutsr' AND f GLOB 'fghij*')
+         OR f='wxyzabcde'
+         OR (f GLOB '?abcd*' AND f GLOB 'zabc*')
+         OR a=70
+         OR ((a BETWEEN 23 AND 25) AND a!=24)
+         OR ((a BETWEEN 14 AND 16) AND a!=15)
+  }
+} {5 9 14 16 22 23 25 48 51 59 69 70 71 74 77 100 scan 0 sort 0}
+do_test where7-2.467.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=59
+         OR ((a BETWEEN 69 AND 71) AND a!=70)
+         OR (d>=9.0 AND d<10.0 AND d NOT NULL)
+         OR (g='xwvutsr' AND f GLOB 'fghij*')
+         OR f='wxyzabcde'
+         OR (f GLOB '?abcd*' AND f GLOB 'zabc*')
+         OR a=70
+         OR ((a BETWEEN 23 AND 25) AND a!=24)
+         OR ((a BETWEEN 14 AND 16) AND a!=15)
+  }
+} {5 9 14 16 22 23 25 48 51 59 69 70 71 74 77 100 scan 0 sort 0}
+do_test where7-2.468.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=69
+         OR (g='ihgfedc' AND f GLOB 'defgh*')
+  }
+} {69 81 scan 0 sort 0}
+do_test where7-2.468.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=69
+         OR (g='ihgfedc' AND f GLOB 'defgh*')
+  }
+} {69 81 scan 0 sort 0}
+do_test where7-2.469.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=41
+         OR a=43
+         OR a=92
+         OR (g='fedcbaz' AND f GLOB 'rstuv*')
+         OR (g='mlkjihg' AND f GLOB 'klmno*')
+  }
+} {41 43 62 92 95 scan 0 sort 0}
+do_test where7-2.469.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=41
+         OR a=43
+         OR a=92
+         OR (g='fedcbaz' AND f GLOB 'rstuv*')
+         OR (g='mlkjihg' AND f GLOB 'klmno*')
+  }
+} {41 43 62 92 95 scan 0 sort 0}
+do_test where7-2.470.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=300
+         OR (d>=52.0 AND d<53.0 AND d NOT NULL)
+         OR b=935
+         OR b=190
+  }
+} {52 85 scan 0 sort 0}
+do_test where7-2.470.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=300
+         OR (d>=52.0 AND d<53.0 AND d NOT NULL)
+         OR b=935
+         OR b=190
+  }
+} {52 85 scan 0 sort 0}
+do_test where7-2.471.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f='fghijklmn'
+         OR f='fghijklmn'
+         OR (g='xwvutsr' AND f GLOB 'efghi*')
+         OR b=465
+         OR b=586
+         OR (d>=20.0 AND d<21.0 AND d NOT NULL)
+         OR b=88
+         OR ((a BETWEEN 30 AND 32) AND a!=31)
+         OR b=726
+         OR ((a BETWEEN 51 AND 53) AND a!=52)
+  }
+} {4 5 8 20 30 31 32 51 53 57 66 83 scan 0 sort 0}
+do_test where7-2.471.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f='fghijklmn'
+         OR f='fghijklmn'
+         OR (g='xwvutsr' AND f GLOB 'efghi*')
+         OR b=465
+         OR b=586
+         OR (d>=20.0 AND d<21.0 AND d NOT NULL)
+         OR b=88
+         OR ((a BETWEEN 30 AND 32) AND a!=31)
+         OR b=726
+         OR ((a BETWEEN 51 AND 53) AND a!=52)
+  }
+} {4 5 8 20 30 31 32 51 53 57 66 83 scan 0 sort 0}
+do_test where7-2.472.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=34.0 AND d<35.0 AND d NOT NULL)
+         OR (f GLOB '?abcd*' AND f GLOB 'zabc*')
+         OR (g='hgfedcb' AND f GLOB 'hijkl*')
+         OR (g='fedcbaz' AND f GLOB 'tuvwx*')
+         OR (g='edcbazy' AND f GLOB 'wxyza*')
+         OR b=814
+         OR a=20
+         OR 1000000<b
+         OR b=792
+  }
+} {20 25 34 51 72 74 77 85 97 100 scan 0 sort 0}
+do_test where7-2.472.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=34.0 AND d<35.0 AND d NOT NULL)
+         OR (f GLOB '?abcd*' AND f GLOB 'zabc*')
+         OR (g='hgfedcb' AND f GLOB 'hijkl*')
+         OR (g='fedcbaz' AND f GLOB 'tuvwx*')
+         OR (g='edcbazy' AND f GLOB 'wxyza*')
+         OR b=814
+         OR a=20
+         OR 1000000<b
+         OR b=792
+  }
+} {20 25 34 51 72 74 77 85 97 100 scan 0 sort 0}
+do_test where7-2.473.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='kjihgfe' AND f GLOB 'uvwxy*')
+         OR ((a BETWEEN 53 AND 55) AND a!=54)
+         OR c=1001
+         OR b=484
+         OR (d>=65.0 AND d<66.0 AND d NOT NULL)
+         OR c<=10
+         OR a=92
+         OR (g='tsrqpon' AND f GLOB 'zabcd*')
+         OR ((a BETWEEN 0 AND 2) AND a!=1)
+         OR b=1026
+  }
+} {1 2 3 25 44 53 55 65 72 92 scan 0 sort 0}
+do_test where7-2.473.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='kjihgfe' AND f GLOB 'uvwxy*')
+         OR ((a BETWEEN 53 AND 55) AND a!=54)
+         OR c=1001
+         OR b=484
+         OR (d>=65.0 AND d<66.0 AND d NOT NULL)
+         OR c<=10
+         OR a=92
+         OR (g='tsrqpon' AND f GLOB 'zabcd*')
+         OR ((a BETWEEN 0 AND 2) AND a!=1)
+         OR b=1026
+  }
+} {1 2 3 25 44 53 55 65 72 92 scan 0 sort 0}
+do_test where7-2.474.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=54
+         OR (g='xwvutsr' AND f GLOB 'defgh*')
+         OR b=993
+         OR c=22022
+         OR a=68
+         OR ((a BETWEEN 99 AND 101) AND a!=100)
+         OR a=62
+         OR (f GLOB '?efgh*' AND f GLOB 'defg*')
+         OR b=1015
+  }
+} {3 29 54 55 62 64 65 66 68 81 99 scan 0 sort 0}
+do_test where7-2.474.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=54
+         OR (g='xwvutsr' AND f GLOB 'defgh*')
+         OR b=993
+         OR c=22022
+         OR a=68
+         OR ((a BETWEEN 99 AND 101) AND a!=100)
+         OR a=62
+         OR (f GLOB '?efgh*' AND f GLOB 'defg*')
+         OR b=1015
+  }
+} {3 29 54 55 62 64 65 66 68 81 99 scan 0 sort 0}
+do_test where7-2.475.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=319
+         OR a=50
+         OR (g='srqponm' AND f GLOB 'defgh*')
+         OR (d>=55.0 AND d<56.0 AND d NOT NULL)
+         OR (d>=10.0 AND d<11.0 AND d NOT NULL)
+         OR (d>=92.0 AND d<93.0 AND d NOT NULL)
+         OR a=96
+  }
+} {10 29 50 55 92 96 scan 0 sort 0}
+do_test where7-2.475.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=319
+         OR a=50
+         OR (g='srqponm' AND f GLOB 'defgh*')
+         OR (d>=55.0 AND d<56.0 AND d NOT NULL)
+         OR (d>=10.0 AND d<11.0 AND d NOT NULL)
+         OR (d>=92.0 AND d<93.0 AND d NOT NULL)
+         OR a=96
+  }
+} {10 29 50 55 92 96 scan 0 sort 0}
+do_test where7-2.476.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=971
+         OR c=18018
+         OR b=564
+         OR b=583
+         OR b=80
+  }
+} {52 53 54 scan 0 sort 0}
+do_test where7-2.476.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=971
+         OR c=18018
+         OR b=564
+         OR b=583
+         OR b=80
+  }
+} {52 53 54 scan 0 sort 0}
+do_test where7-2.477.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=35.0 AND d<36.0 AND d NOT NULL)
+         OR b=1026
+         OR ((a BETWEEN 14 AND 16) AND a!=15)
+  }
+} {14 16 35 scan 0 sort 0}
+do_test where7-2.477.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=35.0 AND d<36.0 AND d NOT NULL)
+         OR b=1026
+         OR ((a BETWEEN 14 AND 16) AND a!=15)
+  }
+} {14 16 35 scan 0 sort 0}
+do_test where7-2.478.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='ponmlkj' AND f GLOB 'uvwxy*')
+         OR (d>=34.0 AND d<35.0 AND d NOT NULL)
+         OR b=407
+         OR b=454
+         OR (f GLOB '?klmn*' AND f GLOB 'jklm*')
+         OR (d>=91.0 AND d<92.0 AND d NOT NULL)
+         OR b=627
+         OR (f GLOB '?opqr*' AND f GLOB 'nopq*')
+  }
+} {9 13 34 35 37 39 46 57 61 65 87 91 scan 0 sort 0}
+do_test where7-2.478.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='ponmlkj' AND f GLOB 'uvwxy*')
+         OR (d>=34.0 AND d<35.0 AND d NOT NULL)
+         OR b=407
+         OR b=454
+         OR (f GLOB '?klmn*' AND f GLOB 'jklm*')
+         OR (d>=91.0 AND d<92.0 AND d NOT NULL)
+         OR b=627
+         OR (f GLOB '?opqr*' AND f GLOB 'nopq*')
+  }
+} {9 13 34 35 37 39 46 57 61 65 87 91 scan 0 sort 0}
+do_test where7-2.479.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=79.0 AND d<80.0 AND d NOT NULL)
+         OR c=34034
+         OR ((a BETWEEN 24 AND 26) AND a!=25)
+         OR ((a BETWEEN 18 AND 20) AND a!=19)
+         OR (f GLOB '?hijk*' AND f GLOB 'ghij*')
+         OR a=67
+  }
+} {6 18 20 24 26 32 58 67 79 84 100 scan 0 sort 0}
+do_test where7-2.479.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=79.0 AND d<80.0 AND d NOT NULL)
+         OR c=34034
+         OR ((a BETWEEN 24 AND 26) AND a!=25)
+         OR ((a BETWEEN 18 AND 20) AND a!=19)
+         OR (f GLOB '?hijk*' AND f GLOB 'ghij*')
+         OR a=67
+  }
+} {6 18 20 24 26 32 58 67 79 84 100 scan 0 sort 0}
+do_test where7-2.480.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=97
+         OR b=575
+         OR (d>=81.0 AND d<82.0 AND d NOT NULL)
+         OR ((a BETWEEN 2 AND 4) AND a!=3)
+         OR (d>=1.0 AND d<2.0 AND d NOT NULL)
+         OR (f GLOB '?rstu*' AND f GLOB 'qrst*')
+  }
+} {1 2 4 16 42 68 81 94 97 scan 0 sort 0}
+do_test where7-2.480.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=97
+         OR b=575
+         OR (d>=81.0 AND d<82.0 AND d NOT NULL)
+         OR ((a BETWEEN 2 AND 4) AND a!=3)
+         OR (d>=1.0 AND d<2.0 AND d NOT NULL)
+         OR (f GLOB '?rstu*' AND f GLOB 'qrst*')
+  }
+} {1 2 4 16 42 68 81 94 97 scan 0 sort 0}
+do_test where7-2.481.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=561
+         OR b=773
+         OR (d>=46.0 AND d<47.0 AND d NOT NULL)
+         OR b=201
+         OR a=99
+         OR (g='utsrqpo' AND f GLOB 'tuvwx*')
+         OR ((a BETWEEN 36 AND 38) AND a!=37)
+         OR (d>=23.0 AND d<24.0 AND d NOT NULL)
+         OR b=946
+         OR b=993
+         OR (g='fedcbaz' AND f GLOB 'qrstu*')
+  }
+} {19 23 36 38 46 51 86 94 99 scan 0 sort 0}
+do_test where7-2.481.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=561
+         OR b=773
+         OR (d>=46.0 AND d<47.0 AND d NOT NULL)
+         OR b=201
+         OR a=99
+         OR (g='utsrqpo' AND f GLOB 'tuvwx*')
+         OR ((a BETWEEN 36 AND 38) AND a!=37)
+         OR (d>=23.0 AND d<24.0 AND d NOT NULL)
+         OR b=946
+         OR b=993
+         OR (g='fedcbaz' AND f GLOB 'qrstu*')
+  }
+} {19 23 36 38 46 51 86 94 99 scan 0 sort 0}
+do_test where7-2.482.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=806
+         OR (g='kjihgfe' AND f GLOB 'uvwxy*')
+         OR ((a BETWEEN 24 AND 26) AND a!=25)
+         OR b=916
+         OR b<0
+         OR (d>=62.0 AND d<63.0 AND d NOT NULL)
+         OR b=154
+         OR c=10010
+         OR b=451
+         OR (d>=14.0 AND d<15.0 AND d NOT NULL)
+  }
+} {14 24 26 28 29 30 41 62 72 scan 0 sort 0}
+do_test where7-2.482.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=806
+         OR (g='kjihgfe' AND f GLOB 'uvwxy*')
+         OR ((a BETWEEN 24 AND 26) AND a!=25)
+         OR b=916
+         OR b<0
+         OR (d>=62.0 AND d<63.0 AND d NOT NULL)
+         OR b=154
+         OR c=10010
+         OR b=451
+         OR (d>=14.0 AND d<15.0 AND d NOT NULL)
+  }
+} {14 24 26 28 29 30 41 62 72 scan 0 sort 0}
+do_test where7-2.483.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=836
+         OR d>1e10
+         OR (g='utsrqpo' AND f GLOB 'uvwxy*')
+         OR f='pqrstuvwx'
+         OR ((a BETWEEN 3 AND 5) AND a!=4)
+         OR f='abcdefghi'
+         OR (g='nmlkjih' AND f GLOB 'fghij*')
+         OR a=33
+         OR ((a BETWEEN 19 AND 21) AND a!=20)
+         OR ((a BETWEEN 88 AND 90) AND a!=89)
+         OR b=476
+  }
+} {3 5 15 19 20 21 26 33 41 52 57 67 76 78 88 90 93 scan 0 sort 0}
+do_test where7-2.483.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=836
+         OR d>1e10
+         OR (g='utsrqpo' AND f GLOB 'uvwxy*')
+         OR f='pqrstuvwx'
+         OR ((a BETWEEN 3 AND 5) AND a!=4)
+         OR f='abcdefghi'
+         OR (g='nmlkjih' AND f GLOB 'fghij*')
+         OR a=33
+         OR ((a BETWEEN 19 AND 21) AND a!=20)
+         OR ((a BETWEEN 88 AND 90) AND a!=89)
+         OR b=476
+  }
+} {3 5 15 19 20 21 26 33 41 52 57 67 76 78 88 90 93 scan 0 sort 0}
+do_test where7-2.484.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=48
+         OR a=92
+         OR a=1
+         OR (f GLOB '?fghi*' AND f GLOB 'efgh*')
+         OR (d>=28.0 AND d<29.0 AND d NOT NULL)
+         OR (d>=7.0 AND d<8.0 AND d NOT NULL)
+         OR (g='rqponml' AND f GLOB 'lmnop*')
+         OR b=905
+         OR ((a BETWEEN 51 AND 53) AND a!=52)
+  }
+} {1 4 7 28 30 37 48 51 53 56 82 92 scan 0 sort 0}
+do_test where7-2.484.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=48
+         OR a=92
+         OR a=1
+         OR (f GLOB '?fghi*' AND f GLOB 'efgh*')
+         OR (d>=28.0 AND d<29.0 AND d NOT NULL)
+         OR (d>=7.0 AND d<8.0 AND d NOT NULL)
+         OR (g='rqponml' AND f GLOB 'lmnop*')
+         OR b=905
+         OR ((a BETWEEN 51 AND 53) AND a!=52)
+  }
+} {1 4 7 28 30 37 48 51 53 56 82 92 scan 0 sort 0}
+do_test where7-2.485.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=17.0 AND d<18.0 AND d NOT NULL)
+         OR (d>=4.0 AND d<5.0 AND d NOT NULL)
+         OR b=212
+         OR a=42
+         OR a=92
+  }
+} {4 17 42 92 scan 0 sort 0}
+do_test where7-2.485.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=17.0 AND d<18.0 AND d NOT NULL)
+         OR (d>=4.0 AND d<5.0 AND d NOT NULL)
+         OR b=212
+         OR a=42
+         OR a=92
+  }
+} {4 17 42 92 scan 0 sort 0}
+do_test where7-2.486.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=740
+         OR b=564
+         OR (g='onmlkji' AND f GLOB 'zabcd*')
+         OR a=11
+         OR ((a BETWEEN 44 AND 46) AND a!=45)
+         OR b=322
+         OR (d>=6.0 AND d<7.0 AND d NOT NULL)
+         OR (g='utsrqpo' AND f GLOB 'wxyza*')
+         OR b=902
+         OR c>=34035
+  }
+} {6 11 22 44 46 51 82 scan 0 sort 0}
+do_test where7-2.486.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=740
+         OR b=564
+         OR (g='onmlkji' AND f GLOB 'zabcd*')
+         OR a=11
+         OR ((a BETWEEN 44 AND 46) AND a!=45)
+         OR b=322
+         OR (d>=6.0 AND d<7.0 AND d NOT NULL)
+         OR (g='utsrqpo' AND f GLOB 'wxyza*')
+         OR b=902
+         OR c>=34035
+  }
+} {6 11 22 44 46 51 82 scan 0 sort 0}
+do_test where7-2.487.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 52 AND 54) AND a!=53)
+         OR ((a BETWEEN 56 AND 58) AND a!=57)
+         OR (d>=8.0 AND d<9.0 AND d NOT NULL)
+         OR a=27
+         OR a=48
+         OR b=927
+         OR ((a BETWEEN 89 AND 91) AND a!=90)
+         OR (g='fedcbaz' AND f GLOB 'stuvw*')
+         OR f='abcdefghi'
+         OR b=91
+         OR b=55
+  }
+} {5 8 26 27 48 52 54 56 58 78 89 91 96 scan 0 sort 0}
+do_test where7-2.487.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 52 AND 54) AND a!=53)
+         OR ((a BETWEEN 56 AND 58) AND a!=57)
+         OR (d>=8.0 AND d<9.0 AND d NOT NULL)
+         OR a=27
+         OR a=48
+         OR b=927
+         OR ((a BETWEEN 89 AND 91) AND a!=90)
+         OR (g='fedcbaz' AND f GLOB 'stuvw*')
+         OR f='abcdefghi'
+         OR b=91
+         OR b=55
+  }
+} {5 8 26 27 48 52 54 56 58 78 89 91 96 scan 0 sort 0}
+do_test where7-2.488.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='srqponm' AND f GLOB 'efghi*')
+         OR ((a BETWEEN 88 AND 90) AND a!=89)
+         OR a=20
+         OR b=11
+  }
+} {1 20 30 88 90 scan 0 sort 0}
+do_test where7-2.488.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='srqponm' AND f GLOB 'efghi*')
+         OR ((a BETWEEN 88 AND 90) AND a!=89)
+         OR a=20
+         OR b=11
+  }
+} {1 20 30 88 90 scan 0 sort 0}
+do_test where7-2.489.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=27.0 AND d<28.0 AND d NOT NULL)
+         OR b=55
+         OR (d>=13.0 AND d<14.0 AND d NOT NULL)
+         OR (g='onmlkji' AND f GLOB 'abcde*')
+         OR a=50
+         OR (d>=73.0 AND d<74.0 AND d NOT NULL)
+         OR (d>=51.0 AND d<52.0 AND d NOT NULL)
+         OR (d>=64.0 AND d<65.0 AND d NOT NULL)
+  }
+} {5 13 27 50 51 52 64 73 scan 0 sort 0}
+do_test where7-2.489.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=27.0 AND d<28.0 AND d NOT NULL)
+         OR b=55
+         OR (d>=13.0 AND d<14.0 AND d NOT NULL)
+         OR (g='onmlkji' AND f GLOB 'abcde*')
+         OR a=50
+         OR (d>=73.0 AND d<74.0 AND d NOT NULL)
+         OR (d>=51.0 AND d<52.0 AND d NOT NULL)
+         OR (d>=64.0 AND d<65.0 AND d NOT NULL)
+  }
+} {5 13 27 50 51 52 64 73 scan 0 sort 0}
+do_test where7-2.490.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='rqponml' AND f GLOB 'ijklm*')
+         OR (f GLOB '?xyza*' AND f GLOB 'wxyz*')
+  }
+} {22 34 48 74 100 scan 0 sort 0}
+do_test where7-2.490.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='rqponml' AND f GLOB 'ijklm*')
+         OR (f GLOB '?xyza*' AND f GLOB 'wxyz*')
+  }
+} {22 34 48 74 100 scan 0 sort 0}
+do_test where7-2.491.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=704
+         OR b=924
+         OR (g='gfedcba' AND f GLOB 'mnopq*')
+         OR b=113
+  }
+} {64 84 90 scan 0 sort 0}
+do_test where7-2.491.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=704
+         OR b=924
+         OR (g='gfedcba' AND f GLOB 'mnopq*')
+         OR b=113
+  }
+} {64 84 90 scan 0 sort 0}
+do_test where7-2.492.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 20 AND 22) AND a!=21)
+         OR b=289
+         OR ((a BETWEEN 14 AND 16) AND a!=15)
+  }
+} {14 16 20 22 scan 0 sort 0}
+do_test where7-2.492.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 20 AND 22) AND a!=21)
+         OR b=289
+         OR ((a BETWEEN 14 AND 16) AND a!=15)
+  }
+} {14 16 20 22 scan 0 sort 0}
+do_test where7-2.493.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=935
+         OR b=1001
+         OR ((a BETWEEN 78 AND 80) AND a!=79)
+         OR a=31
+         OR a=56
+  }
+} {31 56 78 80 85 91 scan 0 sort 0}
+do_test where7-2.493.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=935
+         OR b=1001
+         OR ((a BETWEEN 78 AND 80) AND a!=79)
+         OR a=31
+         OR a=56
+  }
+} {31 56 78 80 85 91 scan 0 sort 0}
+do_test where7-2.494.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=60.0 AND d<61.0 AND d NOT NULL)
+         OR b=726
+         OR f='abcdefghi'
+         OR b=179
+         OR (g='utsrqpo' AND f GLOB 'tuvwx*')
+         OR b=539
+         OR b=66
+         OR ((a BETWEEN 86 AND 88) AND a!=87)
+         OR (f GLOB '?klmn*' AND f GLOB 'jklm*')
+  }
+} {6 9 19 26 35 49 52 60 61 66 78 86 87 88 scan 0 sort 0}
+do_test where7-2.494.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=60.0 AND d<61.0 AND d NOT NULL)
+         OR b=726
+         OR f='abcdefghi'
+         OR b=179
+         OR (g='utsrqpo' AND f GLOB 'tuvwx*')
+         OR b=539
+         OR b=66
+         OR ((a BETWEEN 86 AND 88) AND a!=87)
+         OR (f GLOB '?klmn*' AND f GLOB 'jklm*')
+  }
+} {6 9 19 26 35 49 52 60 61 66 78 86 87 88 scan 0 sort 0}
+do_test where7-2.495.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=179
+         OR b=685
+  }
+} { scan 0 sort 0}
+do_test where7-2.495.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=179
+         OR b=685
+  }
+} { scan 0 sort 0}
+do_test where7-2.496.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=201
+         OR b=682
+         OR b=443
+         OR b=836
+         OR (f GLOB '?opqr*' AND f GLOB 'nopq*')
+         OR (d>=11.0 AND d<12.0 AND d NOT NULL)
+         OR ((a BETWEEN 51 AND 53) AND a!=52)
+         OR b=110
+         OR (f GLOB '?defg*' AND f GLOB 'cdef*')
+  }
+} {2 10 11 13 28 39 51 53 54 62 65 76 80 91 scan 0 sort 0}
+do_test where7-2.496.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=201
+         OR b=682
+         OR b=443
+         OR b=836
+         OR (f GLOB '?opqr*' AND f GLOB 'nopq*')
+         OR (d>=11.0 AND d<12.0 AND d NOT NULL)
+         OR ((a BETWEEN 51 AND 53) AND a!=52)
+         OR b=110
+         OR (f GLOB '?defg*' AND f GLOB 'cdef*')
+  }
+} {2 10 11 13 28 39 51 53 54 62 65 76 80 91 scan 0 sort 0}
+do_test where7-2.497.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (f GLOB '?zabc*' AND f GLOB 'yzab*')
+         OR b=462
+         OR ((a BETWEEN 4 AND 6) AND a!=5)
+         OR a=22
+         OR b=594
+         OR (f GLOB '?tuvw*' AND f GLOB 'stuv*')
+         OR (d>=57.0 AND d<58.0 AND d NOT NULL)
+         OR (g='jihgfed' AND f GLOB 'wxyza*')
+         OR (g='mlkjihg' AND f GLOB 'jklmn*')
+  }
+} {4 6 18 22 24 42 44 50 54 57 61 70 74 76 96 scan 0 sort 0}
+do_test where7-2.497.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (f GLOB '?zabc*' AND f GLOB 'yzab*')
+         OR b=462
+         OR ((a BETWEEN 4 AND 6) AND a!=5)
+         OR a=22
+         OR b=594
+         OR (f GLOB '?tuvw*' AND f GLOB 'stuv*')
+         OR (d>=57.0 AND d<58.0 AND d NOT NULL)
+         OR (g='jihgfed' AND f GLOB 'wxyza*')
+         OR (g='mlkjihg' AND f GLOB 'jklmn*')
+  }
+} {4 6 18 22 24 42 44 50 54 57 61 70 74 76 96 scan 0 sort 0}
+do_test where7-2.498.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='utsrqpo' AND f GLOB 'wxyza*')
+         OR (d>=1.0 AND d<2.0 AND d NOT NULL)
+         OR (g='wvutsrq' AND f GLOB 'klmno*')
+         OR f='vwxyzabcd'
+         OR (g='vutsrqp' AND f GLOB 'nopqr*')
+         OR a=37
+         OR a=50
+  }
+} {1 10 13 21 22 37 47 50 73 99 scan 0 sort 0}
+do_test where7-2.498.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='utsrqpo' AND f GLOB 'wxyza*')
+         OR (d>=1.0 AND d<2.0 AND d NOT NULL)
+         OR (g='wvutsrq' AND f GLOB 'klmno*')
+         OR f='vwxyzabcd'
+         OR (g='vutsrqp' AND f GLOB 'nopqr*')
+         OR a=37
+         OR a=50
+  }
+} {1 10 13 21 22 37 47 50 73 99 scan 0 sort 0}
+do_test where7-2.499.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 83 AND 85) AND a!=84)
+         OR b=784
+         OR (f GLOB '?vwxy*' AND f GLOB 'uvwx*')
+         OR b=825
+         OR a=80
+         OR (g='tsrqpon' AND f GLOB 'xyzab*')
+         OR (d>=97.0 AND d<98.0 AND d NOT NULL)
+         OR b=531
+         OR a=100
+  }
+} {20 23 46 72 75 80 83 85 97 98 100 scan 0 sort 0}
+do_test where7-2.499.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 83 AND 85) AND a!=84)
+         OR b=784
+         OR (f GLOB '?vwxy*' AND f GLOB 'uvwx*')
+         OR b=825
+         OR a=80
+         OR (g='tsrqpon' AND f GLOB 'xyzab*')
+         OR (d>=97.0 AND d<98.0 AND d NOT NULL)
+         OR b=531
+         OR a=100
+  }
+} {20 23 46 72 75 80 83 85 97 98 100 scan 0 sort 0}
+do_test where7-2.500.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='utsrqpo' AND f GLOB 'tuvwx*')
+         OR b=220
+         OR (d>=53.0 AND d<54.0 AND d NOT NULL)
+  }
+} {19 20 53 scan 0 sort 0}
+do_test where7-2.500.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='utsrqpo' AND f GLOB 'tuvwx*')
+         OR b=220
+         OR (d>=53.0 AND d<54.0 AND d NOT NULL)
+  }
+} {19 20 53 scan 0 sort 0}
+do_test where7-2.501.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=92
+         OR (d>=9.0 AND d<10.0 AND d NOT NULL)
+         OR b=990
+  }
+} {9 90 92 scan 0 sort 0}
+do_test where7-2.501.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=92
+         OR (d>=9.0 AND d<10.0 AND d NOT NULL)
+         OR b=990
+  }
+} {9 90 92 scan 0 sort 0}
+do_test where7-2.502.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 77 AND 79) AND a!=78)
+         OR b=894
+         OR c=28028
+         OR b=905
+         OR (g='ponmlkj' AND f GLOB 'tuvwx*')
+         OR (g='kjihgfe' AND f GLOB 'stuvw*')
+         OR (f GLOB '?bcde*' AND f GLOB 'abcd*')
+         OR b=1037
+  }
+} {26 45 52 70 77 78 79 82 83 84 scan 0 sort 0}
+do_test where7-2.502.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 77 AND 79) AND a!=78)
+         OR b=894
+         OR c=28028
+         OR b=905
+         OR (g='ponmlkj' AND f GLOB 'tuvwx*')
+         OR (g='kjihgfe' AND f GLOB 'stuvw*')
+         OR (f GLOB '?bcde*' AND f GLOB 'abcd*')
+         OR b=1037
+  }
+} {26 45 52 70 77 78 79 82 83 84 scan 0 sort 0}
+do_test where7-2.503.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=72.0 AND d<73.0 AND d NOT NULL)
+         OR b=773
+         OR f='defghijkl'
+  }
+} {3 29 55 72 81 scan 0 sort 0}
+do_test where7-2.503.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=72.0 AND d<73.0 AND d NOT NULL)
+         OR b=773
+         OR f='defghijkl'
+  }
+} {3 29 55 72 81 scan 0 sort 0}
+do_test where7-2.504.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='wvutsrq' AND f GLOB 'mnopq*')
+         OR b=861
+         OR (g='rqponml' AND f GLOB 'lmnop*')
+  }
+} {12 37 scan 0 sort 0}
+do_test where7-2.504.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='wvutsrq' AND f GLOB 'mnopq*')
+         OR b=861
+         OR (g='rqponml' AND f GLOB 'lmnop*')
+  }
+} {12 37 scan 0 sort 0}
+do_test where7-2.505.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=704
+         OR (g='wvutsrq' AND f GLOB 'klmno*')
+         OR (d>=51.0 AND d<52.0 AND d NOT NULL)
+         OR (d>=89.0 AND d<90.0 AND d NOT NULL)
+         OR b=25
+         OR (g='jihgfed' AND f GLOB 'zabcd*')
+         OR b=487
+         OR (g='hgfedcb' AND f GLOB 'fghij*')
+         OR ((a BETWEEN 77 AND 79) AND a!=78)
+         OR (d>=23.0 AND d<24.0 AND d NOT NULL)
+         OR (d>=84.0 AND d<85.0 AND d NOT NULL)
+  }
+} {10 23 51 64 77 79 83 84 89 scan 0 sort 0}
+do_test where7-2.505.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=704
+         OR (g='wvutsrq' AND f GLOB 'klmno*')
+         OR (d>=51.0 AND d<52.0 AND d NOT NULL)
+         OR (d>=89.0 AND d<90.0 AND d NOT NULL)
+         OR b=25
+         OR (g='jihgfed' AND f GLOB 'zabcd*')
+         OR b=487
+         OR (g='hgfedcb' AND f GLOB 'fghij*')
+         OR ((a BETWEEN 77 AND 79) AND a!=78)
+         OR (d>=23.0 AND d<24.0 AND d NOT NULL)
+         OR (d>=84.0 AND d<85.0 AND d NOT NULL)
+  }
+} {10 23 51 64 77 79 83 84 89 scan 0 sort 0}
+do_test where7-2.506.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=19
+         OR (g='onmlkji' AND f GLOB 'xyzab*')
+         OR b=674
+         OR (d>=60.0 AND d<61.0 AND d NOT NULL)
+         OR b=355
+         OR ((a BETWEEN 72 AND 74) AND a!=73)
+         OR (g='qponmlk' AND f GLOB 'pqrst*')
+         OR c=28028
+         OR b=649
+         OR (g='vutsrqp' AND f GLOB 'rstuv*')
+         OR (g='srqponm' AND f GLOB 'fghij*')
+  }
+} {17 19 31 41 49 59 60 72 74 82 83 84 scan 0 sort 0}
+do_test where7-2.506.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=19
+         OR (g='onmlkji' AND f GLOB 'xyzab*')
+         OR b=674
+         OR (d>=60.0 AND d<61.0 AND d NOT NULL)
+         OR b=355
+         OR ((a BETWEEN 72 AND 74) AND a!=73)
+         OR (g='qponmlk' AND f GLOB 'pqrst*')
+         OR c=28028
+         OR b=649
+         OR (g='vutsrqp' AND f GLOB 'rstuv*')
+         OR (g='srqponm' AND f GLOB 'fghij*')
+  }
+} {17 19 31 41 49 59 60 72 74 82 83 84 scan 0 sort 0}
+do_test where7-2.507.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 76 AND 78) AND a!=77)
+         OR a=1
+         OR a=22
+         OR b=836
+         OR c=24024
+  }
+} {1 22 70 71 72 76 78 scan 0 sort 0}
+do_test where7-2.507.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 76 AND 78) AND a!=77)
+         OR a=1
+         OR a=22
+         OR b=836
+         OR c=24024
+  }
+} {1 22 70 71 72 76 78 scan 0 sort 0}
+do_test where7-2.508.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=135
+         OR (g='utsrqpo' AND f GLOB 'uvwxy*')
+         OR ((a BETWEEN 39 AND 41) AND a!=40)
+  }
+} {20 39 41 scan 0 sort 0}
+do_test where7-2.508.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=135
+         OR (g='utsrqpo' AND f GLOB 'uvwxy*')
+         OR ((a BETWEEN 39 AND 41) AND a!=40)
+  }
+} {20 39 41 scan 0 sort 0}
+do_test where7-2.509.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='hgfedcb' AND f GLOB 'ijklm*')
+         OR (f GLOB '?klmn*' AND f GLOB 'jklm*')
+  }
+} {9 35 61 86 87 scan 0 sort 0}
+do_test where7-2.509.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='hgfedcb' AND f GLOB 'ijklm*')
+         OR (f GLOB '?klmn*' AND f GLOB 'jklm*')
+  }
+} {9 35 61 86 87 scan 0 sort 0}
+do_test where7-2.510.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='jihgfed' AND f GLOB 'wxyza*')
+         OR f='ghijklmno'
+  }
+} {6 32 58 74 84 scan 0 sort 0}
+do_test where7-2.510.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='jihgfed' AND f GLOB 'wxyza*')
+         OR f='ghijklmno'
+  }
+} {6 32 58 74 84 scan 0 sort 0}
+do_test where7-2.511.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=825
+         OR b=902
+         OR a=40
+         OR ((a BETWEEN 28 AND 30) AND a!=29)
+         OR a=30
+         OR a=10
+         OR a=73
+  }
+} {10 28 30 40 73 75 82 scan 0 sort 0}
+do_test where7-2.511.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=825
+         OR b=902
+         OR a=40
+         OR ((a BETWEEN 28 AND 30) AND a!=29)
+         OR a=30
+         OR a=10
+         OR a=73
+  }
+} {10 28 30 40 73 75 82 scan 0 sort 0}
+do_test where7-2.512.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 22 AND 24) AND a!=23)
+         OR a=5
+         OR b=432
+         OR b=979
+         OR b=762
+         OR b=352
+         OR ((a BETWEEN 36 AND 38) AND a!=37)
+         OR c=27027
+         OR c=20020
+         OR (d>=23.0 AND d<24.0 AND d NOT NULL)
+  }
+} {5 22 23 24 32 36 38 58 59 60 79 80 81 89 scan 0 sort 0}
+do_test where7-2.512.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 22 AND 24) AND a!=23)
+         OR a=5
+         OR b=432
+         OR b=979
+         OR b=762
+         OR b=352
+         OR ((a BETWEEN 36 AND 38) AND a!=37)
+         OR c=27027
+         OR c=20020
+         OR (d>=23.0 AND d<24.0 AND d NOT NULL)
+  }
+} {5 22 23 24 32 36 38 58 59 60 79 80 81 89 scan 0 sort 0}
+do_test where7-2.513.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (f GLOB '?lmno*' AND f GLOB 'klmn*')
+         OR ((a BETWEEN 5 AND 7) AND a!=6)
+         OR b=99
+         OR a=54
+  }
+} {5 7 9 10 36 54 62 88 scan 0 sort 0}
+do_test where7-2.513.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (f GLOB '?lmno*' AND f GLOB 'klmn*')
+         OR ((a BETWEEN 5 AND 7) AND a!=6)
+         OR b=99
+         OR a=54
+  }
+} {5 7 9 10 36 54 62 88 scan 0 sort 0}
+do_test where7-2.514.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=300
+         OR (g='mlkjihg' AND f GLOB 'klmno*')
+         OR b=319
+         OR f='fghijklmn'
+         OR (d>=73.0 AND d<74.0 AND d NOT NULL)
+         OR ((a BETWEEN 42 AND 44) AND a!=43)
+  }
+} {5 29 31 42 44 57 62 73 83 scan 0 sort 0}
+do_test where7-2.514.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=300
+         OR (g='mlkjihg' AND f GLOB 'klmno*')
+         OR b=319
+         OR f='fghijklmn'
+         OR (d>=73.0 AND d<74.0 AND d NOT NULL)
+         OR ((a BETWEEN 42 AND 44) AND a!=43)
+  }
+} {5 29 31 42 44 57 62 73 83 scan 0 sort 0}
+do_test where7-2.515.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=671
+         OR ((a BETWEEN 86 AND 88) AND a!=87)
+         OR (d>=27.0 AND d<28.0 AND d NOT NULL)
+         OR b=1004
+         OR ((a BETWEEN 18 AND 20) AND a!=19)
+         OR ((a BETWEEN 5 AND 7) AND a!=6)
+         OR (d>=82.0 AND d<83.0 AND d NOT NULL)
+         OR b=748
+         OR (g='tsrqpon' AND f GLOB 'xyzab*')
+  }
+} {5 7 18 20 23 27 61 68 82 86 88 scan 0 sort 0}
+do_test where7-2.515.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=671
+         OR ((a BETWEEN 86 AND 88) AND a!=87)
+         OR (d>=27.0 AND d<28.0 AND d NOT NULL)
+         OR b=1004
+         OR ((a BETWEEN 18 AND 20) AND a!=19)
+         OR ((a BETWEEN 5 AND 7) AND a!=6)
+         OR (d>=82.0 AND d<83.0 AND d NOT NULL)
+         OR b=748
+         OR (g='tsrqpon' AND f GLOB 'xyzab*')
+  }
+} {5 7 18 20 23 27 61 68 82 86 88 scan 0 sort 0}
+do_test where7-2.516.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=47
+         OR b=784
+         OR ((a BETWEEN 21 AND 23) AND a!=22)
+         OR a=16
+         OR a=25
+         OR b=572
+  }
+} {16 21 23 25 47 52 scan 0 sort 0}
+do_test where7-2.516.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=47
+         OR b=784
+         OR ((a BETWEEN 21 AND 23) AND a!=22)
+         OR a=16
+         OR a=25
+         OR b=572
+  }
+} {16 21 23 25 47 52 scan 0 sort 0}
+do_test where7-2.517.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='jihgfed' AND f GLOB 'wxyza*')
+         OR (d>=67.0 AND d<68.0 AND d NOT NULL)
+         OR b=110
+         OR (g='gfedcba' AND f GLOB 'nopqr*')
+         OR c=26026
+         OR (d>=69.0 AND d<70.0 AND d NOT NULL)
+         OR b=850
+         OR a=6
+  }
+} {6 10 67 69 74 76 77 78 91 scan 0 sort 0}
+do_test where7-2.517.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='jihgfed' AND f GLOB 'wxyza*')
+         OR (d>=67.0 AND d<68.0 AND d NOT NULL)
+         OR b=110
+         OR (g='gfedcba' AND f GLOB 'nopqr*')
+         OR c=26026
+         OR (d>=69.0 AND d<70.0 AND d NOT NULL)
+         OR b=850
+         OR a=6
+  }
+} {6 10 67 69 74 76 77 78 91 scan 0 sort 0}
+do_test where7-2.518.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 74 AND 76) AND a!=75)
+         OR ((a BETWEEN 1 AND 3) AND a!=2)
+         OR (g='jihgfed' AND f GLOB 'wxyza*')
+         OR (g='utsrqpo' AND f GLOB 'tuvwx*')
+         OR (g='mlkjihg' AND f GLOB 'klmno*')
+         OR b=135
+         OR a=28
+         OR ((a BETWEEN 1 AND 3) AND a!=2)
+         OR b=737
+  }
+} {1 3 19 28 62 67 74 76 scan 0 sort 0}
+do_test where7-2.518.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 74 AND 76) AND a!=75)
+         OR ((a BETWEEN 1 AND 3) AND a!=2)
+         OR (g='jihgfed' AND f GLOB 'wxyza*')
+         OR (g='utsrqpo' AND f GLOB 'tuvwx*')
+         OR (g='mlkjihg' AND f GLOB 'klmno*')
+         OR b=135
+         OR a=28
+         OR ((a BETWEEN 1 AND 3) AND a!=2)
+         OR b=737
+  }
+} {1 3 19 28 62 67 74 76 scan 0 sort 0}
+do_test where7-2.519.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=242
+         OR (d>=20.0 AND d<21.0 AND d NOT NULL)
+         OR ((a BETWEEN 20 AND 22) AND a!=21)
+  }
+} {20 22 scan 0 sort 0}
+do_test where7-2.519.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=242
+         OR (d>=20.0 AND d<21.0 AND d NOT NULL)
+         OR ((a BETWEEN 20 AND 22) AND a!=21)
+  }
+} {20 22 scan 0 sort 0}
+do_test where7-2.520.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=528
+         OR a=41
+         OR f='cdefghijk'
+         OR a=98
+         OR b=759
+         OR a=43
+         OR b=286
+         OR f='hijklmnop'
+  }
+} {2 7 26 28 33 41 43 48 54 59 69 80 85 98 scan 0 sort 0}
+do_test where7-2.520.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=528
+         OR a=41
+         OR f='cdefghijk'
+         OR a=98
+         OR b=759
+         OR a=43
+         OR b=286
+         OR f='hijklmnop'
+  }
+} {2 7 26 28 33 41 43 48 54 59 69 80 85 98 scan 0 sort 0}
+do_test where7-2.521.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='xwvutsr' AND f GLOB 'ghijk*')
+         OR (d>=61.0 AND d<62.0 AND d NOT NULL)
+         OR (g='vutsrqp' AND f GLOB 'pqrst*')
+         OR a=52
+  }
+} {6 15 52 61 scan 0 sort 0}
+do_test where7-2.521.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='xwvutsr' AND f GLOB 'ghijk*')
+         OR (d>=61.0 AND d<62.0 AND d NOT NULL)
+         OR (g='vutsrqp' AND f GLOB 'pqrst*')
+         OR a=52
+  }
+} {6 15 52 61 scan 0 sort 0}
+do_test where7-2.522.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='ihgfedc' AND f GLOB 'abcde*')
+         OR ((a BETWEEN 2 AND 4) AND a!=3)
+         OR a=86
+         OR c=33033
+         OR c=2002
+         OR a=92
+  }
+} {2 4 5 6 78 86 92 97 98 99 scan 0 sort 0}
+do_test where7-2.522.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='ihgfedc' AND f GLOB 'abcde*')
+         OR ((a BETWEEN 2 AND 4) AND a!=3)
+         OR a=86
+         OR c=33033
+         OR c=2002
+         OR a=92
+  }
+} {2 4 5 6 78 86 92 97 98 99 scan 0 sort 0}
+do_test where7-2.523.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 47 AND 49) AND a!=48)
+         OR b=517
+         OR (d>=63.0 AND d<64.0 AND d NOT NULL)
+         OR ((a BETWEEN 67 AND 69) AND a!=68)
+         OR (g='srqponm' AND f GLOB 'fghij*')
+         OR f='defghijkl'
+         OR b=707
+         OR c>=34035
+         OR ((a BETWEEN 33 AND 35) AND a!=34)
+         OR a=80
+         OR (d>=23.0 AND d<24.0 AND d NOT NULL)
+  }
+} {3 23 29 31 33 35 47 49 55 63 67 69 80 81 scan 0 sort 0}
+do_test where7-2.523.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 47 AND 49) AND a!=48)
+         OR b=517
+         OR (d>=63.0 AND d<64.0 AND d NOT NULL)
+         OR ((a BETWEEN 67 AND 69) AND a!=68)
+         OR (g='srqponm' AND f GLOB 'fghij*')
+         OR f='defghijkl'
+         OR b=707
+         OR c>=34035
+         OR ((a BETWEEN 33 AND 35) AND a!=34)
+         OR a=80
+         OR (d>=23.0 AND d<24.0 AND d NOT NULL)
+  }
+} {3 23 29 31 33 35 47 49 55 63 67 69 80 81 scan 0 sort 0}
+do_test where7-2.524.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=96.0 AND d<97.0 AND d NOT NULL)
+         OR b=209
+         OR b=399
+         OR (g='fedcbaz' AND f GLOB 'tuvwx*')
+  }
+} {19 96 97 scan 0 sort 0}
+do_test where7-2.524.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=96.0 AND d<97.0 AND d NOT NULL)
+         OR b=209
+         OR b=399
+         OR (g='fedcbaz' AND f GLOB 'tuvwx*')
+  }
+} {19 96 97 scan 0 sort 0}
+do_test where7-2.525.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 18 AND 20) AND a!=19)
+         OR (g='qponmlk' AND f GLOB 'mnopq*')
+         OR b=597
+         OR a=95
+         OR (g='nmlkjih' AND f GLOB 'defgh*')
+         OR (f GLOB '?zabc*' AND f GLOB 'yzab*')
+         OR b=432
+         OR (d>=92.0 AND d<93.0 AND d NOT NULL)
+  }
+} {18 20 24 38 50 55 76 92 95 scan 0 sort 0}
+do_test where7-2.525.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 18 AND 20) AND a!=19)
+         OR (g='qponmlk' AND f GLOB 'mnopq*')
+         OR b=597
+         OR a=95
+         OR (g='nmlkjih' AND f GLOB 'defgh*')
+         OR (f GLOB '?zabc*' AND f GLOB 'yzab*')
+         OR b=432
+         OR (d>=92.0 AND d<93.0 AND d NOT NULL)
+  }
+} {18 20 24 38 50 55 76 92 95 scan 0 sort 0}
+do_test where7-2.526.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=88.0 AND d<89.0 AND d NOT NULL)
+         OR b=157
+         OR ((a BETWEEN 78 AND 80) AND a!=79)
+         OR a=3
+         OR b=663
+         OR a=2
+         OR c=21021
+         OR b=330
+         OR b=231
+         OR (g='tsrqpon' AND f GLOB 'bcdef*')
+  }
+} {2 3 21 27 30 61 62 63 78 80 88 scan 0 sort 0}
+do_test where7-2.526.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=88.0 AND d<89.0 AND d NOT NULL)
+         OR b=157
+         OR ((a BETWEEN 78 AND 80) AND a!=79)
+         OR a=3
+         OR b=663
+         OR a=2
+         OR c=21021
+         OR b=330
+         OR b=231
+         OR (g='tsrqpon' AND f GLOB 'bcdef*')
+  }
+} {2 3 21 27 30 61 62 63 78 80 88 scan 0 sort 0}
+do_test where7-2.527.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='hgfedcb' AND f GLOB 'fghij*')
+         OR ((a BETWEEN 64 AND 66) AND a!=65)
+         OR f IS NULL
+  }
+} {64 66 83 scan 0 sort 0}
+do_test where7-2.527.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='hgfedcb' AND f GLOB 'fghij*')
+         OR ((a BETWEEN 64 AND 66) AND a!=65)
+         OR f IS NULL
+  }
+} {64 66 83 scan 0 sort 0}
+do_test where7-2.528.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 99 AND 101) AND a!=100)
+         OR (g='fedcbaz' AND f GLOB 'pqrst*')
+         OR 1000000<b
+         OR (g='jihgfed' AND f GLOB 'xyzab*')
+         OR b=990
+  }
+} {75 90 93 99 scan 0 sort 0}
+do_test where7-2.528.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 99 AND 101) AND a!=100)
+         OR (g='fedcbaz' AND f GLOB 'pqrst*')
+         OR 1000000<b
+         OR (g='jihgfed' AND f GLOB 'xyzab*')
+         OR b=990
+  }
+} {75 90 93 99 scan 0 sort 0}
+do_test where7-2.529.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=165
+         OR a=69
+         OR (g='ponmlkj' AND f GLOB 'stuvw*')
+  }
+} {15 44 69 scan 0 sort 0}
+do_test where7-2.529.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=165
+         OR a=69
+         OR (g='ponmlkj' AND f GLOB 'stuvw*')
+  }
+} {15 44 69 scan 0 sort 0}
+do_test where7-2.530.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='nmlkjih' AND f GLOB 'defgh*')
+         OR (g='ponmlkj' AND f GLOB 'uvwxy*')
+         OR b=784
+         OR b=583
+         OR (d>=54.0 AND d<55.0 AND d NOT NULL)
+         OR b=814
+         OR (g='mlkjihg' AND f GLOB 'ghijk*')
+         OR b=619
+         OR (d>=80.0 AND d<81.0 AND d NOT NULL)
+  }
+} {46 53 54 55 58 74 80 scan 0 sort 0}
+do_test where7-2.530.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='nmlkjih' AND f GLOB 'defgh*')
+         OR (g='ponmlkj' AND f GLOB 'uvwxy*')
+         OR b=784
+         OR b=583
+         OR (d>=54.0 AND d<55.0 AND d NOT NULL)
+         OR b=814
+         OR (g='mlkjihg' AND f GLOB 'ghijk*')
+         OR b=619
+         OR (d>=80.0 AND d<81.0 AND d NOT NULL)
+  }
+} {46 53 54 55 58 74 80 scan 0 sort 0}
+do_test where7-2.531.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=86
+         OR b=484
+         OR (g='ihgfedc' AND f GLOB 'bcdef*')
+         OR b=418
+         OR b=509
+         OR a=42
+         OR b=825
+         OR a=91
+         OR b=1023
+         OR b=814
+         OR ((a BETWEEN 99 AND 101) AND a!=100)
+  }
+} {38 42 44 74 75 79 86 91 93 99 scan 0 sort 0}
+do_test where7-2.531.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=86
+         OR b=484
+         OR (g='ihgfedc' AND f GLOB 'bcdef*')
+         OR b=418
+         OR b=509
+         OR a=42
+         OR b=825
+         OR a=91
+         OR b=1023
+         OR b=814
+         OR ((a BETWEEN 99 AND 101) AND a!=100)
+  }
+} {38 42 44 74 75 79 86 91 93 99 scan 0 sort 0}
+do_test where7-2.532.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=86.0 AND d<87.0 AND d NOT NULL)
+         OR b=231
+         OR a=81
+         OR a=72
+         OR ((a BETWEEN 24 AND 26) AND a!=25)
+         OR b=396
+  }
+} {21 24 26 36 72 81 86 scan 0 sort 0}
+do_test where7-2.532.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=86.0 AND d<87.0 AND d NOT NULL)
+         OR b=231
+         OR a=81
+         OR a=72
+         OR ((a BETWEEN 24 AND 26) AND a!=25)
+         OR b=396
+  }
+} {21 24 26 36 72 81 86 scan 0 sort 0}
+do_test where7-2.533.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=74.0 AND d<75.0 AND d NOT NULL)
+         OR a=63
+         OR ((a BETWEEN 70 AND 72) AND a!=71)
+         OR a=71
+         OR b=22
+         OR ((a BETWEEN 76 AND 78) AND a!=77)
+         OR (d>=21.0 AND d<22.0 AND d NOT NULL)
+         OR ((a BETWEEN 59 AND 61) AND a!=60)
+         OR a=53
+  }
+} {2 21 53 59 61 63 70 71 72 74 76 78 scan 0 sort 0}
+do_test where7-2.533.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=74.0 AND d<75.0 AND d NOT NULL)
+         OR a=63
+         OR ((a BETWEEN 70 AND 72) AND a!=71)
+         OR a=71
+         OR b=22
+         OR ((a BETWEEN 76 AND 78) AND a!=77)
+         OR (d>=21.0 AND d<22.0 AND d NOT NULL)
+         OR ((a BETWEEN 59 AND 61) AND a!=60)
+         OR a=53
+  }
+} {2 21 53 59 61 63 70 71 72 74 76 78 scan 0 sort 0}
+do_test where7-2.534.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=861
+         OR b=649
+         OR b=146
+         OR f='abcdefghi'
+  }
+} {26 52 59 78 scan 0 sort 0}
+do_test where7-2.534.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=861
+         OR b=649
+         OR b=146
+         OR f='abcdefghi'
+  }
+} {26 52 59 78 scan 0 sort 0}
+do_test where7-2.535.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (f GLOB '?klmn*' AND f GLOB 'jklm*')
+         OR c=5005
+         OR ((a BETWEEN 50 AND 52) AND a!=51)
+         OR a=93
+         OR c=24024
+         OR b=619
+         OR b=234
+         OR b=55
+         OR (f GLOB '?wxyz*' AND f GLOB 'vwxy*')
+         OR (d>=56.0 AND d<57.0 AND d NOT NULL)
+  }
+} {5 9 13 14 15 21 35 47 50 52 56 61 70 71 72 73 87 93 99 scan 0 sort 0}
+do_test where7-2.535.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (f GLOB '?klmn*' AND f GLOB 'jklm*')
+         OR c=5005
+         OR ((a BETWEEN 50 AND 52) AND a!=51)
+         OR a=93
+         OR c=24024
+         OR b=619
+         OR b=234
+         OR b=55
+         OR (f GLOB '?wxyz*' AND f GLOB 'vwxy*')
+         OR (d>=56.0 AND d<57.0 AND d NOT NULL)
+  }
+} {5 9 13 14 15 21 35 47 50 52 56 61 70 71 72 73 87 93 99 scan 0 sort 0}
+do_test where7-2.536.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=355
+         OR (d>=49.0 AND d<50.0 AND d NOT NULL)
+         OR (g='kjihgfe' AND f GLOB 'rstuv*')
+         OR b=806
+         OR b=462
+         OR b=531
+         OR (g='lkjihgf' AND f GLOB 'lmnop*')
+         OR f='mnopqrstu'
+  }
+} {12 38 42 49 63 64 69 90 scan 0 sort 0}
+do_test where7-2.536.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=355
+         OR (d>=49.0 AND d<50.0 AND d NOT NULL)
+         OR (g='kjihgfe' AND f GLOB 'rstuv*')
+         OR b=806
+         OR b=462
+         OR b=531
+         OR (g='lkjihgf' AND f GLOB 'lmnop*')
+         OR f='mnopqrstu'
+  }
+} {12 38 42 49 63 64 69 90 scan 0 sort 0}
+do_test where7-2.537.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 60 AND 62) AND a!=61)
+         OR f='pqrstuvwx'
+         OR (g='nmlkjih' AND f GLOB 'efghi*')
+         OR b=495
+         OR (g='kjihgfe' AND f GLOB 'stuvw*')
+         OR a=75
+  }
+} {15 41 45 56 60 62 67 70 75 93 scan 0 sort 0}
+do_test where7-2.537.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 60 AND 62) AND a!=61)
+         OR f='pqrstuvwx'
+         OR (g='nmlkjih' AND f GLOB 'efghi*')
+         OR b=495
+         OR (g='kjihgfe' AND f GLOB 'stuvw*')
+         OR a=75
+  }
+} {15 41 45 56 60 62 67 70 75 93 scan 0 sort 0}
+do_test where7-2.538.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='xwvutsr' AND f GLOB 'efghi*')
+         OR (g='utsrqpo' AND f GLOB 'vwxyz*')
+         OR b=748
+         OR b=913
+         OR (d>=5.0 AND d<6.0 AND d NOT NULL)
+         OR a=22
+  }
+} {4 5 21 22 68 83 scan 0 sort 0}
+do_test where7-2.538.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='xwvutsr' AND f GLOB 'efghi*')
+         OR (g='utsrqpo' AND f GLOB 'vwxyz*')
+         OR b=748
+         OR b=913
+         OR (d>=5.0 AND d<6.0 AND d NOT NULL)
+         OR a=22
+  }
+} {4 5 21 22 68 83 scan 0 sort 0}
+do_test where7-2.539.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=19
+         OR b=902
+         OR ((a BETWEEN 63 AND 65) AND a!=64)
+         OR b=168
+         OR (g='lkjihgf' AND f GLOB 'pqrst*')
+         OR a=50
+         OR f='uvwxyzabc'
+         OR b=836
+         OR ((a BETWEEN 77 AND 79) AND a!=78)
+         OR a=50
+  }
+} {19 20 46 50 63 65 67 72 76 77 79 82 98 scan 0 sort 0}
+do_test where7-2.539.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=19
+         OR b=902
+         OR ((a BETWEEN 63 AND 65) AND a!=64)
+         OR b=168
+         OR (g='lkjihgf' AND f GLOB 'pqrst*')
+         OR a=50
+         OR f='uvwxyzabc'
+         OR b=836
+         OR ((a BETWEEN 77 AND 79) AND a!=78)
+         OR a=50
+  }
+} {19 20 46 50 63 65 67 72 76 77 79 82 98 scan 0 sort 0}
+do_test where7-2.540.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=12012
+         OR b=993
+         OR b=839
+         OR ((a BETWEEN 30 AND 32) AND a!=31)
+         OR a=87
+  }
+} {30 32 34 35 36 87 scan 0 sort 0}
+do_test where7-2.540.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=12012
+         OR b=993
+         OR b=839
+         OR ((a BETWEEN 30 AND 32) AND a!=31)
+         OR a=87
+  }
+} {30 32 34 35 36 87 scan 0 sort 0}
+do_test where7-2.541.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=814
+         OR c=30030
+         OR (g='qponmlk' AND f GLOB 'opqrs*')
+         OR (d>=34.0 AND d<35.0 AND d NOT NULL)
+         OR a=16
+         OR b=1048
+         OR b=113
+         OR (d>=61.0 AND d<62.0 AND d NOT NULL)
+         OR (g='xwvutsr' AND f GLOB 'defgh*')
+         OR b=729
+         OR a=54
+  }
+} {3 16 34 40 54 61 74 88 89 90 scan 0 sort 0}
+do_test where7-2.541.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=814
+         OR c=30030
+         OR (g='qponmlk' AND f GLOB 'opqrs*')
+         OR (d>=34.0 AND d<35.0 AND d NOT NULL)
+         OR a=16
+         OR b=1048
+         OR b=113
+         OR (d>=61.0 AND d<62.0 AND d NOT NULL)
+         OR (g='xwvutsr' AND f GLOB 'defgh*')
+         OR b=729
+         OR a=54
+  }
+} {3 16 34 40 54 61 74 88 89 90 scan 0 sort 0}
+do_test where7-2.542.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=399
+         OR (g='kjihgfe' AND f GLOB 'tuvwx*')
+         OR b=814
+         OR c=22022
+         OR (d>=8.0 AND d<9.0 AND d NOT NULL)
+         OR (f GLOB '?mnop*' AND f GLOB 'lmno*')
+         OR a=1
+         OR b=311
+         OR b=121
+         OR (f GLOB '?hijk*' AND f GLOB 'ghij*')
+         OR b=198
+  }
+} {1 6 8 11 18 32 37 58 63 64 65 66 71 74 84 89 scan 0 sort 0}
+do_test where7-2.542.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=399
+         OR (g='kjihgfe' AND f GLOB 'tuvwx*')
+         OR b=814
+         OR c=22022
+         OR (d>=8.0 AND d<9.0 AND d NOT NULL)
+         OR (f GLOB '?mnop*' AND f GLOB 'lmno*')
+         OR a=1
+         OR b=311
+         OR b=121
+         OR (f GLOB '?hijk*' AND f GLOB 'ghij*')
+         OR b=198
+  }
+} {1 6 8 11 18 32 37 58 63 64 65 66 71 74 84 89 scan 0 sort 0}
+do_test where7-2.543.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=146
+         OR (d>=52.0 AND d<53.0 AND d NOT NULL)
+         OR a=57
+  }
+} {52 57 scan 0 sort 0}
+do_test where7-2.543.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=146
+         OR (d>=52.0 AND d<53.0 AND d NOT NULL)
+         OR a=57
+  }
+} {52 57 scan 0 sort 0}
+do_test where7-2.544.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=100.0 AND d<101.0 AND d NOT NULL)
+         OR f='fghijklmn'
+         OR a=70
+         OR (d>=4.0 AND d<5.0 AND d NOT NULL)
+  }
+} {4 5 31 57 70 83 100 scan 0 sort 0}
+do_test where7-2.544.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=100.0 AND d<101.0 AND d NOT NULL)
+         OR f='fghijklmn'
+         OR a=70
+         OR (d>=4.0 AND d<5.0 AND d NOT NULL)
+  }
+} {4 5 31 57 70 83 100 scan 0 sort 0}
+do_test where7-2.545.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=42
+         OR b=333
+         OR (d>=35.0 AND d<36.0 AND d NOT NULL)
+         OR b=1089
+         OR (d>=12.0 AND d<13.0 AND d NOT NULL)
+         OR a=22
+         OR b=594
+         OR (d>=15.0 AND d<16.0 AND d NOT NULL)
+         OR (f GLOB '?ghij*' AND f GLOB 'fghi*')
+  }
+} {5 12 15 22 31 35 42 54 57 83 99 scan 0 sort 0}
+do_test where7-2.545.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=42
+         OR b=333
+         OR (d>=35.0 AND d<36.0 AND d NOT NULL)
+         OR b=1089
+         OR (d>=12.0 AND d<13.0 AND d NOT NULL)
+         OR a=22
+         OR b=594
+         OR (d>=15.0 AND d<16.0 AND d NOT NULL)
+         OR (f GLOB '?ghij*' AND f GLOB 'fghi*')
+  }
+} {5 12 15 22 31 35 42 54 57 83 99 scan 0 sort 0}
+do_test where7-2.546.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=67.0 AND d<68.0 AND d NOT NULL)
+         OR (d>=16.0 AND d<17.0 AND d NOT NULL)
+         OR b=113
+         OR (d>=25.0 AND d<26.0 AND d NOT NULL)
+         OR (d>=69.0 AND d<70.0 AND d NOT NULL)
+         OR ((a BETWEEN 3 AND 5) AND a!=4)
+         OR (f GLOB '?bcde*' AND f GLOB 'abcd*')
+         OR f='mnopqrstu'
+         OR (d>=17.0 AND d<18.0 AND d NOT NULL)
+         OR b=902
+  }
+} {3 5 12 16 17 25 26 38 52 64 67 69 78 82 90 scan 0 sort 0}
+do_test where7-2.546.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=67.0 AND d<68.0 AND d NOT NULL)
+         OR (d>=16.0 AND d<17.0 AND d NOT NULL)
+         OR b=113
+         OR (d>=25.0 AND d<26.0 AND d NOT NULL)
+         OR (d>=69.0 AND d<70.0 AND d NOT NULL)
+         OR ((a BETWEEN 3 AND 5) AND a!=4)
+         OR (f GLOB '?bcde*' AND f GLOB 'abcd*')
+         OR f='mnopqrstu'
+         OR (d>=17.0 AND d<18.0 AND d NOT NULL)
+         OR b=902
+  }
+} {3 5 12 16 17 25 26 38 52 64 67 69 78 82 90 scan 0 sort 0}
+do_test where7-2.547.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='onmlkji' AND f GLOB 'zabcd*')
+         OR (f GLOB '?qrst*' AND f GLOB 'pqrs*')
+         OR a=13
+  }
+} {13 15 41 51 67 93 scan 0 sort 0}
+do_test where7-2.547.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='onmlkji' AND f GLOB 'zabcd*')
+         OR (f GLOB '?qrst*' AND f GLOB 'pqrs*')
+         OR a=13
+  }
+} {13 15 41 51 67 93 scan 0 sort 0}
+do_test where7-2.548.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='edcbazy' AND f GLOB 'wxyza*')
+         OR b=410
+         OR (g='ihgfedc' AND f GLOB 'efghi*')
+         OR b=418
+         OR (g='gfedcba' AND f GLOB 'klmno*')
+         OR (d>=65.0 AND d<66.0 AND d NOT NULL)
+  }
+} {38 65 82 88 100 scan 0 sort 0}
+do_test where7-2.548.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='edcbazy' AND f GLOB 'wxyza*')
+         OR b=410
+         OR (g='ihgfedc' AND f GLOB 'efghi*')
+         OR b=418
+         OR (g='gfedcba' AND f GLOB 'klmno*')
+         OR (d>=65.0 AND d<66.0 AND d NOT NULL)
+  }
+} {38 65 82 88 100 scan 0 sort 0}
+do_test where7-2.549.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=5
+         OR a=95
+         OR a=56
+         OR a=46
+         OR (d>=100.0 AND d<101.0 AND d NOT NULL)
+         OR (g='mlkjihg' AND f GLOB 'jklmn*')
+         OR (g='wvutsrq' AND f GLOB 'klmno*')
+         OR (d>=41.0 AND d<42.0 AND d NOT NULL)
+  }
+} {5 10 41 46 56 61 95 100 scan 0 sort 0}
+do_test where7-2.549.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=5
+         OR a=95
+         OR a=56
+         OR a=46
+         OR (d>=100.0 AND d<101.0 AND d NOT NULL)
+         OR (g='mlkjihg' AND f GLOB 'jklmn*')
+         OR (g='wvutsrq' AND f GLOB 'klmno*')
+         OR (d>=41.0 AND d<42.0 AND d NOT NULL)
+  }
+} {5 10 41 46 56 61 95 100 scan 0 sort 0}
+do_test where7-2.550.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=87.0 AND d<88.0 AND d NOT NULL)
+         OR a=13
+         OR (d>=75.0 AND d<76.0 AND d NOT NULL)
+         OR a=9
+         OR a=27
+         OR ((a BETWEEN 88 AND 90) AND a!=89)
+         OR (d>=37.0 AND d<38.0 AND d NOT NULL)
+         OR b=484
+         OR (d>=44.0 AND d<45.0 AND d NOT NULL)
+         OR b=594
+  }
+} {9 13 27 37 44 54 75 87 88 90 scan 0 sort 0}
+do_test where7-2.550.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=87.0 AND d<88.0 AND d NOT NULL)
+         OR a=13
+         OR (d>=75.0 AND d<76.0 AND d NOT NULL)
+         OR a=9
+         OR a=27
+         OR ((a BETWEEN 88 AND 90) AND a!=89)
+         OR (d>=37.0 AND d<38.0 AND d NOT NULL)
+         OR b=484
+         OR (d>=44.0 AND d<45.0 AND d NOT NULL)
+         OR b=594
+  }
+} {9 13 27 37 44 54 75 87 88 90 scan 0 sort 0}
+do_test where7-2.551.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=539
+         OR b=418
+         OR (g='vutsrqp' AND f GLOB 'pqrst*')
+         OR b=759
+  }
+} {15 38 49 69 scan 0 sort 0}
+do_test where7-2.551.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=539
+         OR b=418
+         OR (g='vutsrqp' AND f GLOB 'pqrst*')
+         OR b=759
+  }
+} {15 38 49 69 scan 0 sort 0}
+do_test where7-2.552.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=1001
+         OR (g='wvutsrq' AND f GLOB 'ijklm*')
+         OR (g='nmlkjih' AND f GLOB 'cdefg*')
+         OR c=34034
+         OR a=84
+  }
+} {8 54 84 91 100 scan 0 sort 0}
+do_test where7-2.552.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=1001
+         OR (g='wvutsrq' AND f GLOB 'ijklm*')
+         OR (g='nmlkjih' AND f GLOB 'cdefg*')
+         OR c=34034
+         OR a=84
+  }
+} {8 54 84 91 100 scan 0 sort 0}
+do_test where7-2.553.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=795
+         OR b=671
+         OR (d>=38.0 AND d<39.0 AND d NOT NULL)
+         OR ((a BETWEEN 71 AND 73) AND a!=72)
+         OR (d>=63.0 AND d<64.0 AND d NOT NULL)
+         OR (f GLOB '?qrst*' AND f GLOB 'pqrs*')
+         OR b=322
+         OR (d>=60.0 AND d<61.0 AND d NOT NULL)
+         OR c=34034
+         OR b=410
+  }
+} {15 38 41 60 61 63 67 71 73 93 100 scan 0 sort 0}
+do_test where7-2.553.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=795
+         OR b=671
+         OR (d>=38.0 AND d<39.0 AND d NOT NULL)
+         OR ((a BETWEEN 71 AND 73) AND a!=72)
+         OR (d>=63.0 AND d<64.0 AND d NOT NULL)
+         OR (f GLOB '?qrst*' AND f GLOB 'pqrs*')
+         OR b=322
+         OR (d>=60.0 AND d<61.0 AND d NOT NULL)
+         OR c=34034
+         OR b=410
+  }
+} {15 38 41 60 61 63 67 71 73 93 100 scan 0 sort 0}
+do_test where7-2.554.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=13013
+         OR (g='fedcbaz' AND f GLOB 'qrstu*')
+         OR (d>=42.0 AND d<43.0 AND d NOT NULL)
+         OR (g='mlkjihg' AND f GLOB 'jklmn*')
+         OR b=47
+         OR (d>=79.0 AND d<80.0 AND d NOT NULL)
+         OR (g='kjihgfe' AND f GLOB 'rstuv*')
+         OR b=828
+  }
+} {37 38 39 42 61 69 79 94 scan 0 sort 0}
+do_test where7-2.554.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=13013
+         OR (g='fedcbaz' AND f GLOB 'qrstu*')
+         OR (d>=42.0 AND d<43.0 AND d NOT NULL)
+         OR (g='mlkjihg' AND f GLOB 'jklmn*')
+         OR b=47
+         OR (d>=79.0 AND d<80.0 AND d NOT NULL)
+         OR (g='kjihgfe' AND f GLOB 'rstuv*')
+         OR b=828
+  }
+} {37 38 39 42 61 69 79 94 scan 0 sort 0}
+do_test where7-2.555.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=451
+         OR b=836
+         OR (g='onmlkji' AND f GLOB 'wxyza*')
+  }
+} {41 48 76 scan 0 sort 0}
+do_test where7-2.555.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=451
+         OR b=836
+         OR (g='onmlkji' AND f GLOB 'wxyza*')
+  }
+} {41 48 76 scan 0 sort 0}
+do_test where7-2.556.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=575
+         OR b=748
+         OR b=520
+         OR b=154
+         OR a=70
+         OR f='efghijklm'
+  }
+} {4 14 30 56 68 70 82 scan 0 sort 0}
+do_test where7-2.556.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=575
+         OR b=748
+         OR b=520
+         OR b=154
+         OR a=70
+         OR f='efghijklm'
+  }
+} {4 14 30 56 68 70 82 scan 0 sort 0}
+do_test where7-2.557.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f='tuvwxyzab'
+         OR (g='nmlkjih' AND f GLOB 'efghi*')
+  }
+} {19 45 56 71 97 scan 0 sort 0}
+do_test where7-2.557.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f='tuvwxyzab'
+         OR (g='nmlkjih' AND f GLOB 'efghi*')
+  }
+} {19 45 56 71 97 scan 0 sort 0}
+do_test where7-2.558.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=12.0 AND d<13.0 AND d NOT NULL)
+         OR b=806
+         OR a=47
+         OR d<0.0
+         OR b=982
+         OR (d>=2.0 AND d<3.0 AND d NOT NULL)
+         OR (g='hgfedcb' AND f GLOB 'jklmn*')
+         OR ((a BETWEEN 97 AND 99) AND a!=98)
+         OR e IS NULL
+         OR c=32032
+         OR b=795
+  }
+} {2 12 47 87 94 95 96 97 99 scan 0 sort 0}
+do_test where7-2.558.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=12.0 AND d<13.0 AND d NOT NULL)
+         OR b=806
+         OR a=47
+         OR d<0.0
+         OR b=982
+         OR (d>=2.0 AND d<3.0 AND d NOT NULL)
+         OR (g='hgfedcb' AND f GLOB 'jklmn*')
+         OR ((a BETWEEN 97 AND 99) AND a!=98)
+         OR e IS NULL
+         OR c=32032
+         OR b=795
+  }
+} {2 12 47 87 94 95 96 97 99 scan 0 sort 0}
+do_test where7-2.559.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=62
+         OR (f GLOB '?yzab*' AND f GLOB 'xyza*')
+         OR ((a BETWEEN 89 AND 91) AND a!=90)
+         OR (g='edcbazy' AND f GLOB 'vwxyz*')
+  }
+} {23 49 62 75 89 91 99 scan 0 sort 0}
+do_test where7-2.559.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=62
+         OR (f GLOB '?yzab*' AND f GLOB 'xyza*')
+         OR ((a BETWEEN 89 AND 91) AND a!=90)
+         OR (g='edcbazy' AND f GLOB 'vwxyz*')
+  }
+} {23 49 62 75 89 91 99 scan 0 sort 0}
+do_test where7-2.560.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=57.0 AND d<58.0 AND d NOT NULL)
+         OR b=1056
+         OR (d>=73.0 AND d<74.0 AND d NOT NULL)
+         OR b=729
+         OR (d>=9.0 AND d<10.0 AND d NOT NULL)
+         OR b=220
+         OR b=498
+         OR ((a BETWEEN 96 AND 98) AND a!=97)
+  }
+} {9 20 57 73 96 98 scan 0 sort 0}
+do_test where7-2.560.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=57.0 AND d<58.0 AND d NOT NULL)
+         OR b=1056
+         OR (d>=73.0 AND d<74.0 AND d NOT NULL)
+         OR b=729
+         OR (d>=9.0 AND d<10.0 AND d NOT NULL)
+         OR b=220
+         OR b=498
+         OR ((a BETWEEN 96 AND 98) AND a!=97)
+  }
+} {9 20 57 73 96 98 scan 0 sort 0}
+do_test where7-2.561.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=44
+         OR (g='qponmlk' AND f GLOB 'mnopq*')
+         OR (g='wvutsrq' AND f GLOB 'klmno*')
+  }
+} {4 10 38 scan 0 sort 0}
+do_test where7-2.561.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=44
+         OR (g='qponmlk' AND f GLOB 'mnopq*')
+         OR (g='wvutsrq' AND f GLOB 'klmno*')
+  }
+} {4 10 38 scan 0 sort 0}
+do_test where7-2.562.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=883
+         OR b=311
+         OR b=880
+         OR (g='qponmlk' AND f GLOB 'pqrst*')
+         OR ((a BETWEEN 57 AND 59) AND a!=58)
+         OR a=88
+         OR b=154
+         OR a=94
+         OR a=37
+         OR c=31031
+  }
+} {14 37 41 57 59 80 88 91 92 93 94 scan 0 sort 0}
+do_test where7-2.562.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=883
+         OR b=311
+         OR b=880
+         OR (g='qponmlk' AND f GLOB 'pqrst*')
+         OR ((a BETWEEN 57 AND 59) AND a!=58)
+         OR a=88
+         OR b=154
+         OR a=94
+         OR a=37
+         OR c=31031
+  }
+} {14 37 41 57 59 80 88 91 92 93 94 scan 0 sort 0}
+do_test where7-2.563.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='onmlkji' AND f GLOB 'xyzab*')
+         OR a=10
+         OR b=190
+         OR ((a BETWEEN 8 AND 10) AND a!=9)
+         OR (d>=55.0 AND d<56.0 AND d NOT NULL)
+         OR (g='gfedcba' AND f GLOB 'mnopq*')
+         OR ((a BETWEEN 67 AND 69) AND a!=68)
+         OR b=385
+         OR a=82
+         OR ((a BETWEEN 63 AND 65) AND a!=64)
+         OR c=22022
+  }
+} {8 10 35 49 55 63 64 65 66 67 69 82 90 scan 0 sort 0}
+do_test where7-2.563.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='onmlkji' AND f GLOB 'xyzab*')
+         OR a=10
+         OR b=190
+         OR ((a BETWEEN 8 AND 10) AND a!=9)
+         OR (d>=55.0 AND d<56.0 AND d NOT NULL)
+         OR (g='gfedcba' AND f GLOB 'mnopq*')
+         OR ((a BETWEEN 67 AND 69) AND a!=68)
+         OR b=385
+         OR a=82
+         OR ((a BETWEEN 63 AND 65) AND a!=64)
+         OR c=22022
+  }
+} {8 10 35 49 55 63 64 65 66 67 69 82 90 scan 0 sort 0}
+do_test where7-2.564.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=1070
+         OR a=33
+         OR b=363
+         OR a=47
+  }
+} {33 47 scan 0 sort 0}
+do_test where7-2.564.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=1070
+         OR a=33
+         OR b=363
+         OR a=47
+  }
+} {33 47 scan 0 sort 0}
+do_test where7-2.565.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=1001
+         OR ((a BETWEEN 60 AND 62) AND a!=61)
+         OR ((a BETWEEN 63 AND 65) AND a!=64)
+         OR a=49
+         OR ((a BETWEEN 33 AND 35) AND a!=34)
+         OR c=33033
+         OR (g='utsrqpo' AND f GLOB 'stuvw*')
+         OR (d>=81.0 AND d<82.0 AND d NOT NULL)
+         OR g IS NULL
+         OR b=220
+         OR (d>=70.0 AND d<71.0 AND d NOT NULL)
+  }
+} {1 2 3 18 20 33 35 49 60 62 63 65 70 81 97 98 99 scan 0 sort 0}
+do_test where7-2.565.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=1001
+         OR ((a BETWEEN 60 AND 62) AND a!=61)
+         OR ((a BETWEEN 63 AND 65) AND a!=64)
+         OR a=49
+         OR ((a BETWEEN 33 AND 35) AND a!=34)
+         OR c=33033
+         OR (g='utsrqpo' AND f GLOB 'stuvw*')
+         OR (d>=81.0 AND d<82.0 AND d NOT NULL)
+         OR g IS NULL
+         OR b=220
+         OR (d>=70.0 AND d<71.0 AND d NOT NULL)
+  }
+} {1 2 3 18 20 33 35 49 60 62 63 65 70 81 97 98 99 scan 0 sort 0}
+do_test where7-2.566.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='kjihgfe' AND f GLOB 'tuvwx*')
+         OR b=212
+         OR b=418
+         OR ((a BETWEEN 31 AND 33) AND a!=32)
+  }
+} {31 33 38 71 scan 0 sort 0}
+do_test where7-2.566.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='kjihgfe' AND f GLOB 'tuvwx*')
+         OR b=212
+         OR b=418
+         OR ((a BETWEEN 31 AND 33) AND a!=32)
+  }
+} {31 33 38 71 scan 0 sort 0}
+do_test where7-2.567.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=344
+         OR f='nopqrstuv'
+         OR b=704
+         OR a=84
+  }
+} {13 39 64 65 84 91 scan 0 sort 0}
+do_test where7-2.567.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=344
+         OR f='nopqrstuv'
+         OR b=704
+         OR a=84
+  }
+} {13 39 64 65 84 91 scan 0 sort 0}
+do_test where7-2.568.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 30 AND 32) AND a!=31)
+         OR (d>=5.0 AND d<6.0 AND d NOT NULL)
+  }
+} {5 30 32 scan 0 sort 0}
+do_test where7-2.568.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 30 AND 32) AND a!=31)
+         OR (d>=5.0 AND d<6.0 AND d NOT NULL)
+  }
+} {5 30 32 scan 0 sort 0}
+do_test where7-2.569.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='hgfedcb' AND f GLOB 'jklmn*')
+         OR (f GLOB '?bcde*' AND f GLOB 'abcd*')
+  }
+} {26 52 78 87 scan 0 sort 0}
+do_test where7-2.569.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='hgfedcb' AND f GLOB 'jklmn*')
+         OR (f GLOB '?bcde*' AND f GLOB 'abcd*')
+  }
+} {26 52 78 87 scan 0 sort 0}
+do_test where7-2.570.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 0 AND 2) AND a!=1)
+         OR b=1100
+         OR (d>=70.0 AND d<71.0 AND d NOT NULL)
+         OR b=421
+         OR b=465
+         OR b=894
+         OR c=13013
+         OR b=47
+         OR b=674
+         OR ((a BETWEEN 0 AND 2) AND a!=1)
+  }
+} {2 37 38 39 70 100 scan 0 sort 0}
+do_test where7-2.570.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 0 AND 2) AND a!=1)
+         OR b=1100
+         OR (d>=70.0 AND d<71.0 AND d NOT NULL)
+         OR b=421
+         OR b=465
+         OR b=894
+         OR c=13013
+         OR b=47
+         OR b=674
+         OR ((a BETWEEN 0 AND 2) AND a!=1)
+  }
+} {2 37 38 39 70 100 scan 0 sort 0}
+do_test where7-2.571.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=18018
+         OR (g='ihgfedc' AND f GLOB 'abcde*')
+         OR b=410
+         OR b=858
+         OR (d>=49.0 AND d<50.0 AND d NOT NULL)
+  }
+} {49 52 53 54 78 scan 0 sort 0}
+do_test where7-2.571.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=18018
+         OR (g='ihgfedc' AND f GLOB 'abcde*')
+         OR b=410
+         OR b=858
+         OR (d>=49.0 AND d<50.0 AND d NOT NULL)
+  }
+} {49 52 53 54 78 scan 0 sort 0}
+do_test where7-2.572.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='ponmlkj' AND f GLOB 'vwxyz*')
+         OR b=781
+  }
+} {47 71 scan 0 sort 0}
+do_test where7-2.572.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='ponmlkj' AND f GLOB 'vwxyz*')
+         OR b=781
+  }
+} {47 71 scan 0 sort 0}
+do_test where7-2.573.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=1070
+         OR ((a BETWEEN 50 AND 52) AND a!=51)
+         OR a=54
+         OR (g='tsrqpon' AND f GLOB 'zabcd*')
+         OR a=9
+         OR (d>=47.0 AND d<48.0 AND d NOT NULL)
+         OR (f GLOB '?ijkl*' AND f GLOB 'hijk*')
+         OR (d>=63.0 AND d<64.0 AND d NOT NULL)
+  }
+} {7 9 25 33 47 50 52 54 59 63 85 scan 0 sort 0}
+do_test where7-2.573.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=1070
+         OR ((a BETWEEN 50 AND 52) AND a!=51)
+         OR a=54
+         OR (g='tsrqpon' AND f GLOB 'zabcd*')
+         OR a=9
+         OR (d>=47.0 AND d<48.0 AND d NOT NULL)
+         OR (f GLOB '?ijkl*' AND f GLOB 'hijk*')
+         OR (d>=63.0 AND d<64.0 AND d NOT NULL)
+  }
+} {7 9 25 33 47 50 52 54 59 63 85 scan 0 sort 0}
+do_test where7-2.574.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=55
+         OR a=62
+         OR a=63
+         OR (g='onmlkji' AND f GLOB 'yzabc*')
+         OR (g='rqponml' AND f GLOB 'ijklm*')
+         OR ((a BETWEEN 99 AND 101) AND a!=100)
+  }
+} {34 50 55 62 63 99 scan 0 sort 0}
+do_test where7-2.574.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=55
+         OR a=62
+         OR a=63
+         OR (g='onmlkji' AND f GLOB 'yzabc*')
+         OR (g='rqponml' AND f GLOB 'ijklm*')
+         OR ((a BETWEEN 99 AND 101) AND a!=100)
+  }
+} {34 50 55 62 63 99 scan 0 sort 0}
+do_test where7-2.575.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=421
+         OR b=146
+         OR b=22
+         OR f='efghijklm'
+  }
+} {2 4 30 56 82 scan 0 sort 0}
+do_test where7-2.575.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=421
+         OR b=146
+         OR b=22
+         OR f='efghijklm'
+  }
+} {2 4 30 56 82 scan 0 sort 0}
+do_test where7-2.576.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=553
+         OR ((a BETWEEN 21 AND 23) AND a!=22)
+         OR (g='onmlkji' AND f GLOB 'wxyza*')
+         OR (d>=59.0 AND d<60.0 AND d NOT NULL)
+         OR (g='mlkjihg' AND f GLOB 'jklmn*')
+         OR b=583
+         OR a=56
+  }
+} {21 23 48 53 56 59 61 scan 0 sort 0}
+do_test where7-2.576.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=553
+         OR ((a BETWEEN 21 AND 23) AND a!=22)
+         OR (g='onmlkji' AND f GLOB 'wxyza*')
+         OR (d>=59.0 AND d<60.0 AND d NOT NULL)
+         OR (g='mlkjihg' AND f GLOB 'jklmn*')
+         OR b=583
+         OR a=56
+  }
+} {21 23 48 53 56 59 61 scan 0 sort 0}
+do_test where7-2.577.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=83
+         OR (d>=77.0 AND d<78.0 AND d NOT NULL)
+         OR (g='srqponm' AND f GLOB 'defgh*')
+         OR a=1
+         OR ((a BETWEEN 17 AND 19) AND a!=18)
+         OR ((a BETWEEN 49 AND 51) AND a!=50)
+         OR b=245
+  }
+} {1 17 19 29 49 51 77 83 scan 0 sort 0}
+do_test where7-2.577.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=83
+         OR (d>=77.0 AND d<78.0 AND d NOT NULL)
+         OR (g='srqponm' AND f GLOB 'defgh*')
+         OR a=1
+         OR ((a BETWEEN 17 AND 19) AND a!=18)
+         OR ((a BETWEEN 49 AND 51) AND a!=50)
+         OR b=245
+  }
+} {1 17 19 29 49 51 77 83 scan 0 sort 0}
+do_test where7-2.578.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=3003
+         OR b=619
+         OR ((a BETWEEN 19 AND 21) AND a!=20)
+  }
+} {7 8 9 19 21 scan 0 sort 0}
+do_test where7-2.578.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=3003
+         OR b=619
+         OR ((a BETWEEN 19 AND 21) AND a!=20)
+  }
+} {7 8 9 19 21 scan 0 sort 0}
+do_test where7-2.579.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=924
+         OR a=92
+         OR a=63
+         OR (d>=60.0 AND d<61.0 AND d NOT NULL)
+         OR (g='fedcbaz' AND f GLOB 'tuvwx*')
+  }
+} {60 63 84 92 97 scan 0 sort 0}
+do_test where7-2.579.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=924
+         OR a=92
+         OR a=63
+         OR (d>=60.0 AND d<61.0 AND d NOT NULL)
+         OR (g='fedcbaz' AND f GLOB 'tuvwx*')
+  }
+} {60 63 84 92 97 scan 0 sort 0}
+do_test where7-2.580.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=440
+         OR f='vwxyzabcd'
+         OR b=190
+         OR (f GLOB '?mnop*' AND f GLOB 'lmno*')
+         OR (d>=42.0 AND d<43.0 AND d NOT NULL)
+         OR b=88
+         OR b=58
+  }
+} {8 11 21 37 40 42 47 63 73 89 99 scan 0 sort 0}
+do_test where7-2.580.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=440
+         OR f='vwxyzabcd'
+         OR b=190
+         OR (f GLOB '?mnop*' AND f GLOB 'lmno*')
+         OR (d>=42.0 AND d<43.0 AND d NOT NULL)
+         OR b=88
+         OR b=58
+  }
+} {8 11 21 37 40 42 47 63 73 89 99 scan 0 sort 0}
+do_test where7-2.581.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=495
+         OR c=24024
+         OR (d>=82.0 AND d<83.0 AND d NOT NULL)
+         OR b=1001
+         OR (g='tsrqpon' AND f GLOB 'zabcd*')
+         OR d>1e10
+         OR b=531
+         OR (d>=49.0 AND d<50.0 AND d NOT NULL)
+         OR b=1089
+  }
+} {25 45 49 70 71 72 82 91 99 scan 0 sort 0}
+do_test where7-2.581.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=495
+         OR c=24024
+         OR (d>=82.0 AND d<83.0 AND d NOT NULL)
+         OR b=1001
+         OR (g='tsrqpon' AND f GLOB 'zabcd*')
+         OR d>1e10
+         OR b=531
+         OR (d>=49.0 AND d<50.0 AND d NOT NULL)
+         OR b=1089
+  }
+} {25 45 49 70 71 72 82 91 99 scan 0 sort 0}
+do_test where7-2.582.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=48.0 AND d<49.0 AND d NOT NULL)
+         OR (d>=41.0 AND d<42.0 AND d NOT NULL)
+  }
+} {41 48 scan 0 sort 0}
+do_test where7-2.582.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=48.0 AND d<49.0 AND d NOT NULL)
+         OR (d>=41.0 AND d<42.0 AND d NOT NULL)
+  }
+} {41 48 scan 0 sort 0}
+do_test where7-2.583.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 71 AND 73) AND a!=72)
+         OR (g='yxwvuts' AND f GLOB 'bcdef*')
+         OR ((a BETWEEN 80 AND 82) AND a!=81)
+         OR (d>=52.0 AND d<53.0 AND d NOT NULL)
+         OR ((a BETWEEN 91 AND 93) AND a!=92)
+         OR d>1e10
+         OR b=22
+         OR c=5005
+         OR ((a BETWEEN 22 AND 24) AND a!=23)
+  }
+} {1 2 13 14 15 22 24 52 71 73 80 82 91 93 scan 0 sort 0}
+do_test where7-2.583.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 71 AND 73) AND a!=72)
+         OR (g='yxwvuts' AND f GLOB 'bcdef*')
+         OR ((a BETWEEN 80 AND 82) AND a!=81)
+         OR (d>=52.0 AND d<53.0 AND d NOT NULL)
+         OR ((a BETWEEN 91 AND 93) AND a!=92)
+         OR d>1e10
+         OR b=22
+         OR c=5005
+         OR ((a BETWEEN 22 AND 24) AND a!=23)
+  }
+} {1 2 13 14 15 22 24 52 71 73 80 82 91 93 scan 0 sort 0}
+do_test where7-2.584.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 9 AND 11) AND a!=10)
+         OR b=1078
+         OR b=806
+         OR b=605
+         OR ((a BETWEEN 23 AND 25) AND a!=24)
+         OR (g='jihgfed' AND f GLOB 'yzabc*')
+         OR (f GLOB '?qrst*' AND f GLOB 'pqrs*')
+  }
+} {9 11 15 23 25 41 55 67 76 93 98 scan 0 sort 0}
+do_test where7-2.584.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 9 AND 11) AND a!=10)
+         OR b=1078
+         OR b=806
+         OR b=605
+         OR ((a BETWEEN 23 AND 25) AND a!=24)
+         OR (g='jihgfed' AND f GLOB 'yzabc*')
+         OR (f GLOB '?qrst*' AND f GLOB 'pqrs*')
+  }
+} {9 11 15 23 25 41 55 67 76 93 98 scan 0 sort 0}
+do_test where7-2.585.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 84 AND 86) AND a!=85)
+         OR b=572
+         OR c=10010
+         OR (g='kjihgfe' AND f GLOB 'qrstu*')
+         OR a=29
+         OR (f GLOB '?ijkl*' AND f GLOB 'hijk*')
+  }
+} {7 28 29 30 33 52 59 68 84 85 86 scan 0 sort 0}
+do_test where7-2.585.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 84 AND 86) AND a!=85)
+         OR b=572
+         OR c=10010
+         OR (g='kjihgfe' AND f GLOB 'qrstu*')
+         OR a=29
+         OR (f GLOB '?ijkl*' AND f GLOB 'hijk*')
+  }
+} {7 28 29 30 33 52 59 68 84 85 86 scan 0 sort 0}
+do_test where7-2.586.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 94 AND 96) AND a!=95)
+         OR b=858
+         OR b=806
+         OR (d>=63.0 AND d<64.0 AND d NOT NULL)
+         OR (d>=77.0 AND d<78.0 AND d NOT NULL)
+  }
+} {63 77 78 94 96 scan 0 sort 0}
+do_test where7-2.586.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 94 AND 96) AND a!=95)
+         OR b=858
+         OR b=806
+         OR (d>=63.0 AND d<64.0 AND d NOT NULL)
+         OR (d>=77.0 AND d<78.0 AND d NOT NULL)
+  }
+} {63 77 78 94 96 scan 0 sort 0}
+do_test where7-2.587.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f='vwxyzabcd'
+         OR a=72
+         OR (d>=37.0 AND d<38.0 AND d NOT NULL)
+         OR b=935
+         OR (d>=40.0 AND d<41.0 AND d NOT NULL)
+         OR (d>=36.0 AND d<37.0 AND d NOT NULL)
+         OR c=13013
+  }
+} {21 36 37 38 39 40 47 72 73 85 99 scan 0 sort 0}
+do_test where7-2.587.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f='vwxyzabcd'
+         OR a=72
+         OR (d>=37.0 AND d<38.0 AND d NOT NULL)
+         OR b=935
+         OR (d>=40.0 AND d<41.0 AND d NOT NULL)
+         OR (d>=36.0 AND d<37.0 AND d NOT NULL)
+         OR c=13013
+  }
+} {21 36 37 38 39 40 47 72 73 85 99 scan 0 sort 0}
+do_test where7-2.588.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=5005
+         OR (g='gfedcba' AND f GLOB 'klmno*')
+         OR (d>=43.0 AND d<44.0 AND d NOT NULL)
+         OR (g='ponmlkj' AND f GLOB 'stuvw*')
+         OR b=143
+         OR a=68
+         OR a=77
+         OR b=80
+  }
+} {13 14 15 43 44 68 77 88 scan 0 sort 0}
+do_test where7-2.588.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=5005
+         OR (g='gfedcba' AND f GLOB 'klmno*')
+         OR (d>=43.0 AND d<44.0 AND d NOT NULL)
+         OR (g='ponmlkj' AND f GLOB 'stuvw*')
+         OR b=143
+         OR a=68
+         OR a=77
+         OR b=80
+  }
+} {13 14 15 43 44 68 77 88 scan 0 sort 0}
+do_test where7-2.589.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=5.0 AND d<6.0 AND d NOT NULL)
+         OR (g='xwvutsr' AND f GLOB 'ghijk*')
+         OR (d>=72.0 AND d<73.0 AND d NOT NULL)
+         OR ((a BETWEEN 76 AND 78) AND a!=77)
+         OR (g='kjihgfe' AND f GLOB 'qrstu*')
+         OR a=99
+         OR ((a BETWEEN 12 AND 14) AND a!=13)
+  }
+} {5 6 12 14 68 72 76 78 99 scan 0 sort 0}
+do_test where7-2.589.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=5.0 AND d<6.0 AND d NOT NULL)
+         OR (g='xwvutsr' AND f GLOB 'ghijk*')
+         OR (d>=72.0 AND d<73.0 AND d NOT NULL)
+         OR ((a BETWEEN 76 AND 78) AND a!=77)
+         OR (g='kjihgfe' AND f GLOB 'qrstu*')
+         OR a=99
+         OR ((a BETWEEN 12 AND 14) AND a!=13)
+  }
+} {5 6 12 14 68 72 76 78 99 scan 0 sort 0}
+do_test where7-2.590.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='qponmlk' AND f GLOB 'opqrs*')
+         OR ((a BETWEEN 88 AND 90) AND a!=89)
+         OR (d>=13.0 AND d<14.0 AND d NOT NULL)
+         OR (g='xwvutsr' AND f GLOB 'fghij*')
+         OR b=971
+         OR (g='xwvutsr' AND f GLOB 'fghij*')
+  }
+} {5 13 40 88 90 scan 0 sort 0}
+do_test where7-2.590.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='qponmlk' AND f GLOB 'opqrs*')
+         OR ((a BETWEEN 88 AND 90) AND a!=89)
+         OR (d>=13.0 AND d<14.0 AND d NOT NULL)
+         OR (g='xwvutsr' AND f GLOB 'fghij*')
+         OR b=971
+         OR (g='xwvutsr' AND f GLOB 'fghij*')
+  }
+} {5 13 40 88 90 scan 0 sort 0}
+do_test where7-2.591.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (f GLOB '?lmno*' AND f GLOB 'klmn*')
+         OR b=806
+         OR (g='ponmlkj' AND f GLOB 'rstuv*')
+         OR b=1015
+         OR ((a BETWEEN 68 AND 70) AND a!=69)
+         OR (f GLOB '?opqr*' AND f GLOB 'nopq*')
+  }
+} {10 13 36 39 43 62 65 68 70 88 91 scan 0 sort 0}
+do_test where7-2.591.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (f GLOB '?lmno*' AND f GLOB 'klmn*')
+         OR b=806
+         OR (g='ponmlkj' AND f GLOB 'rstuv*')
+         OR b=1015
+         OR ((a BETWEEN 68 AND 70) AND a!=69)
+         OR (f GLOB '?opqr*' AND f GLOB 'nopq*')
+  }
+} {10 13 36 39 43 62 65 68 70 88 91 scan 0 sort 0}
+do_test where7-2.592.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f='nopqrstuv'
+         OR b=993
+         OR a=76
+         OR (d>=79.0 AND d<80.0 AND d NOT NULL)
+         OR c=20020
+         OR a=26
+         OR b=1048
+         OR b=561
+         OR (g='rqponml' AND f GLOB 'klmno*')
+         OR ((a BETWEEN 55 AND 57) AND a!=56)
+         OR a=56
+  }
+} {13 26 36 39 51 55 56 57 58 59 60 65 76 79 91 scan 0 sort 0}
+do_test where7-2.592.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f='nopqrstuv'
+         OR b=993
+         OR a=76
+         OR (d>=79.0 AND d<80.0 AND d NOT NULL)
+         OR c=20020
+         OR a=26
+         OR b=1048
+         OR b=561
+         OR (g='rqponml' AND f GLOB 'klmno*')
+         OR ((a BETWEEN 55 AND 57) AND a!=56)
+         OR a=56
+  }
+} {13 26 36 39 51 55 56 57 58 59 60 65 76 79 91 scan 0 sort 0}
+do_test where7-2.593.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=781
+         OR b=671
+         OR (d>=60.0 AND d<61.0 AND d NOT NULL)
+         OR (d>=15.0 AND d<16.0 AND d NOT NULL)
+         OR ((a BETWEEN 39 AND 41) AND a!=40)
+         OR b=113
+         OR (d>=16.0 AND d<17.0 AND d NOT NULL)
+         OR b=385
+         OR (g='hgfedcb' AND f GLOB 'fghij*')
+  }
+} {15 16 35 39 41 60 61 71 83 scan 0 sort 0}
+do_test where7-2.593.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=781
+         OR b=671
+         OR (d>=60.0 AND d<61.0 AND d NOT NULL)
+         OR (d>=15.0 AND d<16.0 AND d NOT NULL)
+         OR ((a BETWEEN 39 AND 41) AND a!=40)
+         OR b=113
+         OR (d>=16.0 AND d<17.0 AND d NOT NULL)
+         OR b=385
+         OR (g='hgfedcb' AND f GLOB 'fghij*')
+  }
+} {15 16 35 39 41 60 61 71 83 scan 0 sort 0}
+do_test where7-2.594.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=410
+         OR ((a BETWEEN 85 AND 87) AND a!=86)
+         OR b=674
+         OR b=825
+         OR b=704
+         OR (g='mlkjihg' AND f GLOB 'jklmn*')
+         OR (d>=9.0 AND d<10.0 AND d NOT NULL)
+         OR ((a BETWEEN 58 AND 60) AND a!=59)
+         OR a=76
+         OR c=32032
+         OR ((a BETWEEN 43 AND 45) AND a!=44)
+  }
+} {9 43 45 58 60 61 64 75 76 85 87 94 95 96 scan 0 sort 0}
+do_test where7-2.594.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=410
+         OR ((a BETWEEN 85 AND 87) AND a!=86)
+         OR b=674
+         OR b=825
+         OR b=704
+         OR (g='mlkjihg' AND f GLOB 'jklmn*')
+         OR (d>=9.0 AND d<10.0 AND d NOT NULL)
+         OR ((a BETWEEN 58 AND 60) AND a!=59)
+         OR a=76
+         OR c=32032
+         OR ((a BETWEEN 43 AND 45) AND a!=44)
+  }
+} {9 43 45 58 60 61 64 75 76 85 87 94 95 96 scan 0 sort 0}
+do_test where7-2.595.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=869
+         OR (g='ponmlkj' AND f GLOB 'rstuv*')
+  }
+} {43 79 scan 0 sort 0}
+do_test where7-2.595.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=869
+         OR (g='ponmlkj' AND f GLOB 'rstuv*')
+  }
+} {43 79 scan 0 sort 0}
+do_test where7-2.596.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=869
+         OR a=34
+         OR (d>=87.0 AND d<88.0 AND d NOT NULL)
+  }
+} {34 79 87 scan 0 sort 0}
+do_test where7-2.596.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=869
+         OR a=34
+         OR (d>=87.0 AND d<88.0 AND d NOT NULL)
+  }
+} {34 79 87 scan 0 sort 0}
+do_test where7-2.597.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='rqponml' AND f GLOB 'hijkl*')
+         OR (g='ponmlkj' AND f GLOB 'stuvw*')
+         OR a=8
+         OR a=72
+         OR ((a BETWEEN 95 AND 97) AND a!=96)
+         OR (g='gfedcba' AND f GLOB 'mnopq*')
+  }
+} {8 33 44 72 90 95 97 scan 0 sort 0}
+do_test where7-2.597.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='rqponml' AND f GLOB 'hijkl*')
+         OR (g='ponmlkj' AND f GLOB 'stuvw*')
+         OR a=8
+         OR a=72
+         OR ((a BETWEEN 95 AND 97) AND a!=96)
+         OR (g='gfedcba' AND f GLOB 'mnopq*')
+  }
+} {8 33 44 72 90 95 97 scan 0 sort 0}
+do_test where7-2.598.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=20
+         OR ((a BETWEEN 74 AND 76) AND a!=75)
+         OR b=341
+         OR (g='tsrqpon' AND f GLOB 'abcde*')
+         OR b=814
+         OR b=1026
+         OR a=14
+         OR a=13
+         OR b=1037
+         OR ((a BETWEEN 56 AND 58) AND a!=57)
+  }
+} {13 14 20 26 31 56 58 74 76 scan 0 sort 0}
+do_test where7-2.598.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=20
+         OR ((a BETWEEN 74 AND 76) AND a!=75)
+         OR b=341
+         OR (g='tsrqpon' AND f GLOB 'abcde*')
+         OR b=814
+         OR b=1026
+         OR a=14
+         OR a=13
+         OR b=1037
+         OR ((a BETWEEN 56 AND 58) AND a!=57)
+  }
+} {13 14 20 26 31 56 58 74 76 scan 0 sort 0}
+do_test where7-2.599.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=443
+         OR (d>=10.0 AND d<11.0 AND d NOT NULL)
+         OR b=839
+         OR (d>=51.0 AND d<52.0 AND d NOT NULL)
+         OR (g='onmlkji' AND f GLOB 'xyzab*')
+         OR (g='vutsrqp' AND f GLOB 'nopqr*')
+         OR c=7007
+  }
+} {10 13 19 20 21 49 51 scan 0 sort 0}
+do_test where7-2.599.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=443
+         OR (d>=10.0 AND d<11.0 AND d NOT NULL)
+         OR b=839
+         OR (d>=51.0 AND d<52.0 AND d NOT NULL)
+         OR (g='onmlkji' AND f GLOB 'xyzab*')
+         OR (g='vutsrqp' AND f GLOB 'nopqr*')
+         OR c=7007
+  }
+} {10 13 19 20 21 49 51 scan 0 sort 0}
+do_test where7-2.600.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (f GLOB '?rstu*' AND f GLOB 'qrst*')
+         OR a=21
+         OR (d>=9.0 AND d<10.0 AND d NOT NULL)
+         OR (d>=3.0 AND d<4.0 AND d NOT NULL)
+         OR f='zabcdefgh'
+         OR (d>=97.0 AND d<98.0 AND d NOT NULL)
+         OR b=506
+         OR ((a BETWEEN 14 AND 16) AND a!=15)
+         OR b=88
+         OR b=190
+  }
+} {3 8 9 14 16 21 25 42 46 51 68 77 94 97 scan 0 sort 0}
+do_test where7-2.600.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (f GLOB '?rstu*' AND f GLOB 'qrst*')
+         OR a=21
+         OR (d>=9.0 AND d<10.0 AND d NOT NULL)
+         OR (d>=3.0 AND d<4.0 AND d NOT NULL)
+         OR f='zabcdefgh'
+         OR (d>=97.0 AND d<98.0 AND d NOT NULL)
+         OR b=506
+         OR ((a BETWEEN 14 AND 16) AND a!=15)
+         OR b=88
+         OR b=190
+  }
+} {3 8 9 14 16 21 25 42 46 51 68 77 94 97 scan 0 sort 0}
+do_test where7-2.601.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=41.0 AND d<42.0 AND d NOT NULL)
+         OR f='bcdefghij'
+         OR ((a BETWEEN 68 AND 70) AND a!=69)
+         OR (d>=54.0 AND d<55.0 AND d NOT NULL)
+         OR (g='srqponm' AND f GLOB 'efghi*')
+         OR (g='mlkjihg' AND f GLOB 'jklmn*')
+         OR b=762
+         OR (d>=63.0 AND d<64.0 AND d NOT NULL)
+         OR (g='jihgfed' AND f GLOB 'yzabc*')
+  }
+} {1 27 30 41 53 54 61 63 68 70 76 79 scan 0 sort 0}
+do_test where7-2.601.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=41.0 AND d<42.0 AND d NOT NULL)
+         OR f='bcdefghij'
+         OR ((a BETWEEN 68 AND 70) AND a!=69)
+         OR (d>=54.0 AND d<55.0 AND d NOT NULL)
+         OR (g='srqponm' AND f GLOB 'efghi*')
+         OR (g='mlkjihg' AND f GLOB 'jklmn*')
+         OR b=762
+         OR (d>=63.0 AND d<64.0 AND d NOT NULL)
+         OR (g='jihgfed' AND f GLOB 'yzabc*')
+  }
+} {1 27 30 41 53 54 61 63 68 70 76 79 scan 0 sort 0}
+do_test where7-2.602.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=85.0 AND d<86.0 AND d NOT NULL)
+         OR f='qrstuvwxy'
+         OR (d>=56.0 AND d<57.0 AND d NOT NULL)
+  }
+} {16 42 56 68 85 94 scan 0 sort 0}
+do_test where7-2.602.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=85.0 AND d<86.0 AND d NOT NULL)
+         OR f='qrstuvwxy'
+         OR (d>=56.0 AND d<57.0 AND d NOT NULL)
+  }
+} {16 42 56 68 85 94 scan 0 sort 0}
+do_test where7-2.603.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=89.0 AND d<90.0 AND d NOT NULL)
+         OR (d>=57.0 AND d<58.0 AND d NOT NULL)
+         OR a=21
+         OR b<0
+         OR f='bcdefghij'
+         OR ((a BETWEEN 14 AND 16) AND a!=15)
+  }
+} {1 14 16 21 27 53 57 79 89 scan 0 sort 0}
+do_test where7-2.603.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=89.0 AND d<90.0 AND d NOT NULL)
+         OR (d>=57.0 AND d<58.0 AND d NOT NULL)
+         OR a=21
+         OR b<0
+         OR f='bcdefghij'
+         OR ((a BETWEEN 14 AND 16) AND a!=15)
+  }
+} {1 14 16 21 27 53 57 79 89 scan 0 sort 0}
+do_test where7-2.604.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=55.0 AND d<56.0 AND d NOT NULL)
+         OR (g='hgfedcb' AND f GLOB 'fghij*')
+         OR (d>=40.0 AND d<41.0 AND d NOT NULL)
+         OR b=1067
+         OR b=231
+         OR b=113
+         OR b=22
+         OR a=55
+         OR b=663
+  }
+} {2 21 40 55 83 97 scan 0 sort 0}
+do_test where7-2.604.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=55.0 AND d<56.0 AND d NOT NULL)
+         OR (g='hgfedcb' AND f GLOB 'fghij*')
+         OR (d>=40.0 AND d<41.0 AND d NOT NULL)
+         OR b=1067
+         OR b=231
+         OR b=113
+         OR b=22
+         OR a=55
+         OR b=663
+  }
+} {2 21 40 55 83 97 scan 0 sort 0}
+do_test where7-2.605.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=1
+         OR b=454
+         OR b=396
+         OR b=1059
+         OR a=69
+         OR (f GLOB '?wxyz*' AND f GLOB 'vwxy*')
+         OR b=440
+         OR b=825
+  }
+} {1 21 36 40 47 69 73 75 99 scan 0 sort 0}
+do_test where7-2.605.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=1
+         OR b=454
+         OR b=396
+         OR b=1059
+         OR a=69
+         OR (f GLOB '?wxyz*' AND f GLOB 'vwxy*')
+         OR b=440
+         OR b=825
+  }
+} {1 21 36 40 47 69 73 75 99 scan 0 sort 0}
+do_test where7-2.606.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=26.0 AND d<27.0 AND d NOT NULL)
+         OR b=308
+         OR c<=10
+         OR (g='xwvutsr' AND f GLOB 'hijkl*')
+         OR f='ghijklmno'
+         OR b=289
+         OR a=5
+         OR b=267
+         OR b=949
+         OR ((a BETWEEN 7 AND 9) AND a!=8)
+  }
+} {5 6 7 9 26 28 32 58 84 scan 0 sort 0}
+do_test where7-2.606.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=26.0 AND d<27.0 AND d NOT NULL)
+         OR b=308
+         OR c<=10
+         OR (g='xwvutsr' AND f GLOB 'hijkl*')
+         OR f='ghijklmno'
+         OR b=289
+         OR a=5
+         OR b=267
+         OR b=949
+         OR ((a BETWEEN 7 AND 9) AND a!=8)
+  }
+} {5 6 7 9 26 28 32 58 84 scan 0 sort 0}
+do_test where7-2.607.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 95 AND 97) AND a!=96)
+         OR (d>=17.0 AND d<18.0 AND d NOT NULL)
+         OR b=993
+         OR ((a BETWEEN 43 AND 45) AND a!=44)
+         OR (f GLOB '?zabc*' AND f GLOB 'yzab*')
+         OR b=663
+         OR (g='ihgfedc' AND f GLOB 'defgh*')
+         OR b=869
+         OR (d>=43.0 AND d<44.0 AND d NOT NULL)
+         OR b=121
+  }
+} {11 17 24 43 45 50 76 79 81 95 97 scan 0 sort 0}
+do_test where7-2.607.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 95 AND 97) AND a!=96)
+         OR (d>=17.0 AND d<18.0 AND d NOT NULL)
+         OR b=993
+         OR ((a BETWEEN 43 AND 45) AND a!=44)
+         OR (f GLOB '?zabc*' AND f GLOB 'yzab*')
+         OR b=663
+         OR (g='ihgfedc' AND f GLOB 'defgh*')
+         OR b=869
+         OR (d>=43.0 AND d<44.0 AND d NOT NULL)
+         OR b=121
+  }
+} {11 17 24 43 45 50 76 79 81 95 97 scan 0 sort 0}
+do_test where7-2.608.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='xwvutsr' AND f GLOB 'efghi*')
+         OR (g='tsrqpon' AND f GLOB 'bcdef*')
+         OR (g='hgfedcb' AND f GLOB 'jklmn*')
+         OR b=770
+  }
+} {4 27 70 87 scan 0 sort 0}
+do_test where7-2.608.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='xwvutsr' AND f GLOB 'efghi*')
+         OR (g='tsrqpon' AND f GLOB 'bcdef*')
+         OR (g='hgfedcb' AND f GLOB 'jklmn*')
+         OR b=770
+  }
+} {4 27 70 87 scan 0 sort 0}
+do_test where7-2.609.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 80 AND 82) AND a!=81)
+         OR (g='nmlkjih' AND f GLOB 'fghij*')
+         OR (g='kjihgfe' AND f GLOB 'tuvwx*')
+         OR (f GLOB '?uvwx*' AND f GLOB 'tuvw*')
+         OR (g='gfedcba' AND f GLOB 'mnopq*')
+  }
+} {19 45 57 71 80 82 90 97 scan 0 sort 0}
+do_test where7-2.609.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 80 AND 82) AND a!=81)
+         OR (g='nmlkjih' AND f GLOB 'fghij*')
+         OR (g='kjihgfe' AND f GLOB 'tuvwx*')
+         OR (f GLOB '?uvwx*' AND f GLOB 'tuvw*')
+         OR (g='gfedcba' AND f GLOB 'mnopq*')
+  }
+} {19 45 57 71 80 82 90 97 scan 0 sort 0}
+do_test where7-2.610.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=22
+         OR c=31031
+         OR b=894
+         OR a=31
+         OR ((a BETWEEN 84 AND 86) AND a!=85)
+         OR (d>=92.0 AND d<93.0 AND d NOT NULL)
+         OR a=94
+         OR (d>=21.0 AND d<22.0 AND d NOT NULL)
+         OR ((a BETWEEN 93 AND 95) AND a!=94)
+         OR a=21
+         OR b=1001
+  }
+} {2 21 31 84 86 91 92 93 94 95 scan 0 sort 0}
+do_test where7-2.610.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=22
+         OR c=31031
+         OR b=894
+         OR a=31
+         OR ((a BETWEEN 84 AND 86) AND a!=85)
+         OR (d>=92.0 AND d<93.0 AND d NOT NULL)
+         OR a=94
+         OR (d>=21.0 AND d<22.0 AND d NOT NULL)
+         OR ((a BETWEEN 93 AND 95) AND a!=94)
+         OR a=21
+         OR b=1001
+  }
+} {2 21 31 84 86 91 92 93 94 95 scan 0 sort 0}
+do_test where7-2.611.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='onmlkji' AND f GLOB 'zabcd*')
+         OR b=1092
+         OR (g='ihgfedc' AND f GLOB 'cdefg*')
+         OR (g='ponmlkj' AND f GLOB 'uvwxy*')
+         OR a=77
+         OR a=63
+         OR b=762
+         OR b=894
+         OR b=685
+         OR (g='vutsrqp' AND f GLOB 'nopqr*')
+  }
+} {13 46 51 63 77 80 scan 0 sort 0}
+do_test where7-2.611.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='onmlkji' AND f GLOB 'zabcd*')
+         OR b=1092
+         OR (g='ihgfedc' AND f GLOB 'cdefg*')
+         OR (g='ponmlkj' AND f GLOB 'uvwxy*')
+         OR a=77
+         OR a=63
+         OR b=762
+         OR b=894
+         OR b=685
+         OR (g='vutsrqp' AND f GLOB 'nopqr*')
+  }
+} {13 46 51 63 77 80 scan 0 sort 0}
+do_test where7-2.612.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='wvutsrq' AND f GLOB 'klmno*')
+         OR ((a BETWEEN 93 AND 95) AND a!=94)
+         OR b=231
+  }
+} {10 21 93 95 scan 0 sort 0}
+do_test where7-2.612.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='wvutsrq' AND f GLOB 'klmno*')
+         OR ((a BETWEEN 93 AND 95) AND a!=94)
+         OR b=231
+  }
+} {10 21 93 95 scan 0 sort 0}
+do_test where7-2.613.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=828
+         OR (f GLOB '?bcde*' AND f GLOB 'abcd*')
+         OR ((a BETWEEN 8 AND 10) AND a!=9)
+  }
+} {8 10 26 52 78 scan 0 sort 0}
+do_test where7-2.613.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=828
+         OR (f GLOB '?bcde*' AND f GLOB 'abcd*')
+         OR ((a BETWEEN 8 AND 10) AND a!=9)
+  }
+} {8 10 26 52 78 scan 0 sort 0}
+do_test where7-2.614.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (f GLOB '?opqr*' AND f GLOB 'nopq*')
+         OR (d>=47.0 AND d<48.0 AND d NOT NULL)
+         OR b=520
+         OR ((a BETWEEN 4 AND 6) AND a!=5)
+         OR (d>=50.0 AND d<51.0 AND d NOT NULL)
+         OR ((a BETWEEN 31 AND 33) AND a!=32)
+         OR (g='edcbazy' AND f GLOB 'wxyza*')
+         OR a=21
+  }
+} {4 6 13 21 31 33 39 47 50 65 91 100 scan 0 sort 0}
+do_test where7-2.614.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (f GLOB '?opqr*' AND f GLOB 'nopq*')
+         OR (d>=47.0 AND d<48.0 AND d NOT NULL)
+         OR b=520
+         OR ((a BETWEEN 4 AND 6) AND a!=5)
+         OR (d>=50.0 AND d<51.0 AND d NOT NULL)
+         OR ((a BETWEEN 31 AND 33) AND a!=32)
+         OR (g='edcbazy' AND f GLOB 'wxyza*')
+         OR a=21
+  }
+} {4 6 13 21 31 33 39 47 50 65 91 100 scan 0 sort 0}
+do_test where7-2.615.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=553
+         OR (g='lkjihgf' AND f GLOB 'lmnop*')
+         OR b=1034
+         OR b=418
+         OR a=57
+         OR f='mnopqrstu'
+         OR (d>=99.0 AND d<100.0 AND d NOT NULL)
+  }
+} {12 38 57 63 64 90 94 99 scan 0 sort 0}
+do_test where7-2.615.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=553
+         OR (g='lkjihgf' AND f GLOB 'lmnop*')
+         OR b=1034
+         OR b=418
+         OR a=57
+         OR f='mnopqrstu'
+         OR (d>=99.0 AND d<100.0 AND d NOT NULL)
+  }
+} {12 38 57 63 64 90 94 99 scan 0 sort 0}
+do_test where7-2.616.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=43
+         OR (g='ponmlkj' AND f GLOB 'vwxyz*')
+         OR b=418
+         OR (g='kjihgfe' AND f GLOB 'stuvw*')
+         OR (d>=43.0 AND d<44.0 AND d NOT NULL)
+         OR b=594
+         OR a=21
+         OR a=78
+         OR a=91
+         OR (d>=80.0 AND d<81.0 AND d NOT NULL)
+  }
+} {21 38 43 47 54 70 78 80 91 scan 0 sort 0}
+do_test where7-2.616.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=43
+         OR (g='ponmlkj' AND f GLOB 'vwxyz*')
+         OR b=418
+         OR (g='kjihgfe' AND f GLOB 'stuvw*')
+         OR (d>=43.0 AND d<44.0 AND d NOT NULL)
+         OR b=594
+         OR a=21
+         OR a=78
+         OR a=91
+         OR (d>=80.0 AND d<81.0 AND d NOT NULL)
+  }
+} {21 38 43 47 54 70 78 80 91 scan 0 sort 0}
+do_test where7-2.617.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=671
+         OR (g='onmlkji' AND f GLOB 'wxyza*')
+         OR ((a BETWEEN 95 AND 97) AND a!=96)
+  }
+} {48 61 95 97 scan 0 sort 0}
+do_test where7-2.617.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=671
+         OR (g='onmlkji' AND f GLOB 'wxyza*')
+         OR ((a BETWEEN 95 AND 97) AND a!=96)
+  }
+} {48 61 95 97 scan 0 sort 0}
+do_test where7-2.618.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=2.0 AND d<3.0 AND d NOT NULL)
+         OR b=726
+         OR b=663
+         OR (d>=13.0 AND d<14.0 AND d NOT NULL)
+         OR a=25
+         OR f='qrstuvwxy'
+  }
+} {2 13 16 25 42 66 68 94 scan 0 sort 0}
+do_test where7-2.618.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=2.0 AND d<3.0 AND d NOT NULL)
+         OR b=726
+         OR b=663
+         OR (d>=13.0 AND d<14.0 AND d NOT NULL)
+         OR a=25
+         OR f='qrstuvwxy'
+  }
+} {2 13 16 25 42 66 68 94 scan 0 sort 0}
+do_test where7-2.619.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=806
+         OR (g='ihgfedc' AND f GLOB 'efghi*')
+         OR (d>=50.0 AND d<51.0 AND d NOT NULL)
+         OR ((a BETWEEN 10 AND 12) AND a!=11)
+         OR b=275
+         OR ((a BETWEEN 80 AND 82) AND a!=81)
+  }
+} {10 12 25 50 80 82 scan 0 sort 0}
+do_test where7-2.619.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=806
+         OR (g='ihgfedc' AND f GLOB 'efghi*')
+         OR (d>=50.0 AND d<51.0 AND d NOT NULL)
+         OR ((a BETWEEN 10 AND 12) AND a!=11)
+         OR b=275
+         OR ((a BETWEEN 80 AND 82) AND a!=81)
+  }
+} {10 12 25 50 80 82 scan 0 sort 0}
+do_test where7-2.620.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=24024
+         OR (g='tsrqpon' AND f GLOB 'xyzab*')
+         OR b=429
+         OR (g='qponmlk' AND f GLOB 'nopqr*')
+         OR b=110
+         OR a=39
+         OR (g='yxwvuts' AND f GLOB 'cdefg*')
+  }
+} {2 10 23 39 70 71 72 scan 0 sort 0}
+do_test where7-2.620.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=24024
+         OR (g='tsrqpon' AND f GLOB 'xyzab*')
+         OR b=429
+         OR (g='qponmlk' AND f GLOB 'nopqr*')
+         OR b=110
+         OR a=39
+         OR (g='yxwvuts' AND f GLOB 'cdefg*')
+  }
+} {2 10 23 39 70 71 72 scan 0 sort 0}
+do_test where7-2.621.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=66
+         OR ((a BETWEEN 68 AND 70) AND a!=69)
+         OR b=198
+         OR b=682
+         OR c=23023
+  }
+} {18 62 66 67 68 69 70 scan 0 sort 0}
+do_test where7-2.621.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=66
+         OR ((a BETWEEN 68 AND 70) AND a!=69)
+         OR b=198
+         OR b=682
+         OR c=23023
+  }
+} {18 62 66 67 68 69 70 scan 0 sort 0}
+do_test where7-2.622.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=806
+         OR b=253
+         OR a=36
+  }
+} {23 36 scan 0 sort 0}
+do_test where7-2.622.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=806
+         OR b=253
+         OR a=36
+  }
+} {23 36 scan 0 sort 0}
+do_test where7-2.623.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=509
+         OR ((a BETWEEN 22 AND 24) AND a!=23)
+         OR (g='vutsrqp' AND f GLOB 'nopqr*')
+         OR b=718
+         OR a=4
+         OR ((a BETWEEN 56 AND 58) AND a!=57)
+         OR (d>=69.0 AND d<70.0 AND d NOT NULL)
+         OR (d>=16.0 AND d<17.0 AND d NOT NULL)
+  }
+} {4 13 16 22 24 56 58 69 scan 0 sort 0}
+do_test where7-2.623.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=509
+         OR ((a BETWEEN 22 AND 24) AND a!=23)
+         OR (g='vutsrqp' AND f GLOB 'nopqr*')
+         OR b=718
+         OR a=4
+         OR ((a BETWEEN 56 AND 58) AND a!=57)
+         OR (d>=69.0 AND d<70.0 AND d NOT NULL)
+         OR (d>=16.0 AND d<17.0 AND d NOT NULL)
+  }
+} {4 13 16 22 24 56 58 69 scan 0 sort 0}
+do_test where7-2.624.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='jihgfed' AND f GLOB 'zabcd*')
+         OR b=1026
+         OR a=93
+         OR c=18018
+  }
+} {52 53 54 77 93 scan 0 sort 0}
+do_test where7-2.624.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='jihgfed' AND f GLOB 'zabcd*')
+         OR b=1026
+         OR a=93
+         OR c=18018
+  }
+} {52 53 54 77 93 scan 0 sort 0}
+do_test where7-2.625.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=388
+         OR a=44
+  }
+} {44 scan 0 sort 0}
+do_test where7-2.625.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=388
+         OR a=44
+  }
+} {44 scan 0 sort 0}
+do_test where7-2.626.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=9009
+         OR b=542
+         OR f='cdefghijk'
+         OR b=319
+         OR b=616
+  }
+} {2 25 26 27 28 29 54 56 80 scan 0 sort 0}
+do_test where7-2.626.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=9009
+         OR b=542
+         OR f='cdefghijk'
+         OR b=319
+         OR b=616
+  }
+} {2 25 26 27 28 29 54 56 80 scan 0 sort 0}
+do_test where7-2.627.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=990
+         OR (d>=97.0 AND d<98.0 AND d NOT NULL)
+         OR ((a BETWEEN 41 AND 43) AND a!=42)
+         OR (g='nmlkjih' AND f GLOB 'fghij*')
+         OR (d>=86.0 AND d<87.0 AND d NOT NULL)
+         OR b=531
+         OR (d>=67.0 AND d<68.0 AND d NOT NULL)
+         OR (f GLOB '?hijk*' AND f GLOB 'ghij*')
+         OR f='qrstuvwxy'
+  }
+} {6 16 32 41 42 43 57 58 67 68 84 86 90 94 97 scan 0 sort 0}
+do_test where7-2.627.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=990
+         OR (d>=97.0 AND d<98.0 AND d NOT NULL)
+         OR ((a BETWEEN 41 AND 43) AND a!=42)
+         OR (g='nmlkjih' AND f GLOB 'fghij*')
+         OR (d>=86.0 AND d<87.0 AND d NOT NULL)
+         OR b=531
+         OR (d>=67.0 AND d<68.0 AND d NOT NULL)
+         OR (f GLOB '?hijk*' AND f GLOB 'ghij*')
+         OR f='qrstuvwxy'
+  }
+} {6 16 32 41 42 43 57 58 67 68 84 86 90 94 97 scan 0 sort 0}
+do_test where7-2.628.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=60
+         OR (g='jihgfed' AND f GLOB 'vwxyz*')
+         OR b=627
+         OR (g='edcbazy' AND f GLOB 'vwxyz*')
+         OR (d>=38.0 AND d<39.0 AND d NOT NULL)
+         OR (d>=78.0 AND d<79.0 AND d NOT NULL)
+         OR b=883
+         OR (d>=93.0 AND d<94.0 AND d NOT NULL)
+         OR f='yzabcdefg'
+         OR (d>=59.0 AND d<60.0 AND d NOT NULL)
+  }
+} {24 38 50 57 59 60 73 76 78 93 99 scan 0 sort 0}
+do_test where7-2.628.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=60
+         OR (g='jihgfed' AND f GLOB 'vwxyz*')
+         OR b=627
+         OR (g='edcbazy' AND f GLOB 'vwxyz*')
+         OR (d>=38.0 AND d<39.0 AND d NOT NULL)
+         OR (d>=78.0 AND d<79.0 AND d NOT NULL)
+         OR b=883
+         OR (d>=93.0 AND d<94.0 AND d NOT NULL)
+         OR f='yzabcdefg'
+         OR (d>=59.0 AND d<60.0 AND d NOT NULL)
+  }
+} {24 38 50 57 59 60 73 76 78 93 99 scan 0 sort 0}
+do_test where7-2.629.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=696
+         OR b=938
+         OR a=18
+         OR b=957
+         OR c=18018
+         OR c=3003
+         OR ((a BETWEEN 33 AND 35) AND a!=34)
+  }
+} {7 8 9 18 33 35 52 53 54 87 scan 0 sort 0}
+do_test where7-2.629.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=696
+         OR b=938
+         OR a=18
+         OR b=957
+         OR c=18018
+         OR c=3003
+         OR ((a BETWEEN 33 AND 35) AND a!=34)
+  }
+} {7 8 9 18 33 35 52 53 54 87 scan 0 sort 0}
+do_test where7-2.630.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=29029
+         OR a=73
+  }
+} {73 85 86 87 scan 0 sort 0}
+do_test where7-2.630.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=29029
+         OR a=73
+  }
+} {73 85 86 87 scan 0 sort 0}
+do_test where7-2.631.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=28
+         OR (g='tsrqpon' AND f GLOB 'bcdef*')
+         OR b=69
+         OR ((a BETWEEN 85 AND 87) AND a!=86)
+         OR b=781
+         OR a=64
+         OR b=91
+         OR (g='ihgfedc' AND f GLOB 'efghi*')
+         OR a=16
+         OR b=278
+         OR a=26
+  }
+} {16 26 27 28 64 71 82 85 87 scan 0 sort 0}
+do_test where7-2.631.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=28
+         OR (g='tsrqpon' AND f GLOB 'bcdef*')
+         OR b=69
+         OR ((a BETWEEN 85 AND 87) AND a!=86)
+         OR b=781
+         OR a=64
+         OR b=91
+         OR (g='ihgfedc' AND f GLOB 'efghi*')
+         OR a=16
+         OR b=278
+         OR a=26
+  }
+} {16 26 27 28 64 71 82 85 87 scan 0 sort 0}
+do_test where7-2.632.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=70
+         OR c=3003
+  }
+} {7 8 9 70 scan 0 sort 0}
+do_test where7-2.632.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=70
+         OR c=3003
+  }
+} {7 8 9 70 scan 0 sort 0}
+do_test where7-2.633.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=31031
+         OR a=76
+         OR b=1023
+         OR b=33
+  }
+} {3 76 91 92 93 scan 0 sort 0}
+do_test where7-2.633.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=31031
+         OR a=76
+         OR b=1023
+         OR b=33
+  }
+} {3 76 91 92 93 scan 0 sort 0}
+do_test where7-2.634.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=62.0 AND d<63.0 AND d NOT NULL)
+         OR b=1001
+         OR (d>=86.0 AND d<87.0 AND d NOT NULL)
+  }
+} {62 86 91 scan 0 sort 0}
+do_test where7-2.634.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=62.0 AND d<63.0 AND d NOT NULL)
+         OR b=1001
+         OR (d>=86.0 AND d<87.0 AND d NOT NULL)
+  }
+} {62 86 91 scan 0 sort 0}
+do_test where7-2.635.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f='yzabcdefg'
+         OR ((a BETWEEN 48 AND 50) AND a!=49)
+         OR a=100
+         OR (g='rqponml' AND f GLOB 'ijklm*')
+         OR a=62
+         OR a=67
+         OR b=605
+         OR c=23023
+         OR a=26
+         OR b=982
+         OR ((a BETWEEN 3 AND 5) AND a!=4)
+  }
+} {3 5 24 26 34 48 50 55 62 67 68 69 76 100 scan 0 sort 0}
+do_test where7-2.635.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f='yzabcdefg'
+         OR ((a BETWEEN 48 AND 50) AND a!=49)
+         OR a=100
+         OR (g='rqponml' AND f GLOB 'ijklm*')
+         OR a=62
+         OR a=67
+         OR b=605
+         OR c=23023
+         OR a=26
+         OR b=982
+         OR ((a BETWEEN 3 AND 5) AND a!=4)
+  }
+} {3 5 24 26 34 48 50 55 62 67 68 69 76 100 scan 0 sort 0}
+do_test where7-2.636.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=220
+         OR ((a BETWEEN 24 AND 26) AND a!=25)
+         OR f IS NULL
+         OR ((a BETWEEN 25 AND 27) AND a!=26)
+         OR b=784
+  }
+} {20 24 25 26 27 scan 0 sort 0}
+do_test where7-2.636.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=220
+         OR ((a BETWEEN 24 AND 26) AND a!=25)
+         OR f IS NULL
+         OR ((a BETWEEN 25 AND 27) AND a!=26)
+         OR b=784
+  }
+} {20 24 25 26 27 scan 0 sort 0}
+do_test where7-2.637.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (f GLOB '?stuv*' AND f GLOB 'rstu*')
+         OR b=751
+         OR (g='gfedcba' AND f GLOB 'klmno*')
+         OR (d>=10.0 AND d<11.0 AND d NOT NULL)
+         OR a=67
+         OR b=102
+  }
+} {10 17 43 67 69 88 95 scan 0 sort 0}
+do_test where7-2.637.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (f GLOB '?stuv*' AND f GLOB 'rstu*')
+         OR b=751
+         OR (g='gfedcba' AND f GLOB 'klmno*')
+         OR (d>=10.0 AND d<11.0 AND d NOT NULL)
+         OR a=67
+         OR b=102
+  }
+} {10 17 43 67 69 88 95 scan 0 sort 0}
+do_test where7-2.638.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=69.0 AND d<70.0 AND d NOT NULL)
+         OR b=256
+         OR c=7007
+         OR c=26026
+         OR ((a BETWEEN 80 AND 82) AND a!=81)
+         OR (d>=74.0 AND d<75.0 AND d NOT NULL)
+         OR a=66
+  }
+} {19 20 21 66 69 74 76 77 78 80 82 scan 0 sort 0}
+do_test where7-2.638.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=69.0 AND d<70.0 AND d NOT NULL)
+         OR b=256
+         OR c=7007
+         OR c=26026
+         OR ((a BETWEEN 80 AND 82) AND a!=81)
+         OR (d>=74.0 AND d<75.0 AND d NOT NULL)
+         OR a=66
+  }
+} {19 20 21 66 69 74 76 77 78 80 82 scan 0 sort 0}
+do_test where7-2.639.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=2002
+         OR (f GLOB '?jklm*' AND f GLOB 'ijkl*')
+         OR ((a BETWEEN 41 AND 43) AND a!=42)
+         OR (g='ihgfedc' AND f GLOB 'defgh*')
+         OR b=33
+         OR b=817
+         OR (g='ponmlkj' AND f GLOB 'tuvwx*')
+         OR (d>=10.0 AND d<11.0 AND d NOT NULL)
+         OR (g='xwvutsr' AND f GLOB 'efghi*')
+         OR (d>=21.0 AND d<22.0 AND d NOT NULL)
+  }
+} {3 4 5 6 8 10 21 34 41 43 45 60 81 86 scan 0 sort 0}
+do_test where7-2.639.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=2002
+         OR (f GLOB '?jklm*' AND f GLOB 'ijkl*')
+         OR ((a BETWEEN 41 AND 43) AND a!=42)
+         OR (g='ihgfedc' AND f GLOB 'defgh*')
+         OR b=33
+         OR b=817
+         OR (g='ponmlkj' AND f GLOB 'tuvwx*')
+         OR (d>=10.0 AND d<11.0 AND d NOT NULL)
+         OR (g='xwvutsr' AND f GLOB 'efghi*')
+         OR (d>=21.0 AND d<22.0 AND d NOT NULL)
+  }
+} {3 4 5 6 8 10 21 34 41 43 45 60 81 86 scan 0 sort 0}
+do_test where7-2.640.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='srqponm' AND f GLOB 'cdefg*')
+         OR (g='ihgfedc' AND f GLOB 'defgh*')
+         OR a=80
+         OR a=53
+         OR a=62
+         OR a=49
+         OR a=53
+         OR a=56
+         OR (d>=83.0 AND d<84.0 AND d NOT NULL)
+  }
+} {28 49 53 56 62 80 81 83 scan 0 sort 0}
+do_test where7-2.640.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='srqponm' AND f GLOB 'cdefg*')
+         OR (g='ihgfedc' AND f GLOB 'defgh*')
+         OR a=80
+         OR a=53
+         OR a=62
+         OR a=49
+         OR a=53
+         OR a=56
+         OR (d>=83.0 AND d<84.0 AND d NOT NULL)
+  }
+} {28 49 53 56 62 80 81 83 scan 0 sort 0}
+do_test where7-2.641.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 7 AND 9) AND a!=8)
+         OR b=652
+         OR a=72
+         OR b=209
+         OR (g='tsrqpon' AND f GLOB 'xyzab*')
+         OR a=38
+         OR ((a BETWEEN 66 AND 68) AND a!=67)
+         OR d>1e10
+  }
+} {7 9 19 23 38 66 68 72 scan 0 sort 0}
+do_test where7-2.641.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 7 AND 9) AND a!=8)
+         OR b=652
+         OR a=72
+         OR b=209
+         OR (g='tsrqpon' AND f GLOB 'xyzab*')
+         OR a=38
+         OR ((a BETWEEN 66 AND 68) AND a!=67)
+         OR d>1e10
+  }
+} {7 9 19 23 38 66 68 72 scan 0 sort 0}
+do_test where7-2.642.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=949
+         OR e IS NULL
+  }
+} { scan 0 sort 0}
+do_test where7-2.642.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=949
+         OR e IS NULL
+  }
+} { scan 0 sort 0}
+do_test where7-2.643.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=179
+         OR (g='srqponm' AND f GLOB 'defgh*')
+         OR b=509
+         OR ((a BETWEEN 58 AND 60) AND a!=59)
+         OR (d>=49.0 AND d<50.0 AND d NOT NULL)
+         OR (g='tsrqpon' AND f GLOB 'abcde*')
+         OR f='bcdefghij'
+  }
+} {1 26 27 29 49 53 58 60 79 scan 0 sort 0}
+do_test where7-2.643.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=179
+         OR (g='srqponm' AND f GLOB 'defgh*')
+         OR b=509
+         OR ((a BETWEEN 58 AND 60) AND a!=59)
+         OR (d>=49.0 AND d<50.0 AND d NOT NULL)
+         OR (g='tsrqpon' AND f GLOB 'abcde*')
+         OR f='bcdefghij'
+  }
+} {1 26 27 29 49 53 58 60 79 scan 0 sort 0}
+do_test where7-2.644.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=23
+         OR a=43
+         OR c=19019
+         OR (d>=47.0 AND d<48.0 AND d NOT NULL)
+         OR c=18018
+  }
+} {23 43 47 52 53 54 55 56 57 scan 0 sort 0}
+do_test where7-2.644.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=23
+         OR a=43
+         OR c=19019
+         OR (d>=47.0 AND d<48.0 AND d NOT NULL)
+         OR c=18018
+  }
+} {23 43 47 52 53 54 55 56 57 scan 0 sort 0}
+do_test where7-2.645.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=36
+         OR (d>=22.0 AND d<23.0 AND d NOT NULL)
+         OR b=231
+  }
+} {21 22 36 scan 0 sort 0}
+do_test where7-2.645.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=36
+         OR (d>=22.0 AND d<23.0 AND d NOT NULL)
+         OR b=231
+  }
+} {21 22 36 scan 0 sort 0}
+do_test where7-2.646.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=21
+         OR b=355
+         OR a=97
+  }
+} {21 97 scan 0 sort 0}
+do_test where7-2.646.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=21
+         OR b=355
+         OR a=97
+  }
+} {21 97 scan 0 sort 0}
+do_test where7-2.647.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=28.0 AND d<29.0 AND d NOT NULL)
+         OR b=421
+         OR (g='qponmlk' AND f GLOB 'qrstu*')
+         OR b=704
+         OR a=90
+         OR a=78
+         OR 1000000<b
+         OR (d>=80.0 AND d<81.0 AND d NOT NULL)
+         OR (g='ihgfedc' AND f GLOB 'defgh*')
+         OR ((a BETWEEN 53 AND 55) AND a!=54)
+  }
+} {28 42 53 55 64 78 80 81 90 scan 0 sort 0}
+do_test where7-2.647.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=28.0 AND d<29.0 AND d NOT NULL)
+         OR b=421
+         OR (g='qponmlk' AND f GLOB 'qrstu*')
+         OR b=704
+         OR a=90
+         OR a=78
+         OR 1000000<b
+         OR (d>=80.0 AND d<81.0 AND d NOT NULL)
+         OR (g='ihgfedc' AND f GLOB 'defgh*')
+         OR ((a BETWEEN 53 AND 55) AND a!=54)
+  }
+} {28 42 53 55 64 78 80 81 90 scan 0 sort 0}
+do_test where7-2.648.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='fedcbaz' AND f GLOB 'pqrst*')
+         OR ((a BETWEEN 93 AND 95) AND a!=94)
+  }
+} {93 95 scan 0 sort 0}
+do_test where7-2.648.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='fedcbaz' AND f GLOB 'pqrst*')
+         OR ((a BETWEEN 93 AND 95) AND a!=94)
+  }
+} {93 95 scan 0 sort 0}
+do_test where7-2.649.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE d<0.0
+         OR a=78
+         OR b=539
+         OR ((a BETWEEN 8 AND 10) AND a!=9)
+         OR ((a BETWEEN 25 AND 27) AND a!=26)
+         OR e IS NULL
+         OR a=48
+         OR (g='nmlkjih' AND f GLOB 'fghij*')
+  }
+} {8 10 25 27 48 49 57 78 scan 0 sort 0}
+do_test where7-2.649.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE d<0.0
+         OR a=78
+         OR b=539
+         OR ((a BETWEEN 8 AND 10) AND a!=9)
+         OR ((a BETWEEN 25 AND 27) AND a!=26)
+         OR e IS NULL
+         OR a=48
+         OR (g='nmlkjih' AND f GLOB 'fghij*')
+  }
+} {8 10 25 27 48 49 57 78 scan 0 sort 0}
+do_test where7-2.650.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 94 AND 96) AND a!=95)
+         OR (d>=78.0 AND d<79.0 AND d NOT NULL)
+         OR b=22
+  }
+} {2 78 94 96 scan 0 sort 0}
+do_test where7-2.650.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 94 AND 96) AND a!=95)
+         OR (d>=78.0 AND d<79.0 AND d NOT NULL)
+         OR b=22
+  }
+} {2 78 94 96 scan 0 sort 0}
+do_test where7-2.651.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=275
+         OR ((a BETWEEN 57 AND 59) AND a!=58)
+         OR (d>=92.0 AND d<93.0 AND d NOT NULL)
+         OR (g='rqponml' AND f GLOB 'lmnop*')
+         OR (d>=53.0 AND d<54.0 AND d NOT NULL)
+         OR f='ijklmnopq'
+  }
+} {8 25 34 37 53 57 59 60 86 92 scan 0 sort 0}
+do_test where7-2.651.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=275
+         OR ((a BETWEEN 57 AND 59) AND a!=58)
+         OR (d>=92.0 AND d<93.0 AND d NOT NULL)
+         OR (g='rqponml' AND f GLOB 'lmnop*')
+         OR (d>=53.0 AND d<54.0 AND d NOT NULL)
+         OR f='ijklmnopq'
+  }
+} {8 25 34 37 53 57 59 60 86 92 scan 0 sort 0}
+do_test where7-2.652.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=256
+         OR c=13013
+         OR b=44
+         OR f='jklmnopqr'
+         OR b=883
+  }
+} {4 9 35 37 38 39 61 87 scan 0 sort 0}
+do_test where7-2.652.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=256
+         OR c=13013
+         OR b=44
+         OR f='jklmnopqr'
+         OR b=883
+  }
+} {4 9 35 37 38 39 61 87 scan 0 sort 0}
+do_test where7-2.653.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f='zabcdefgh'
+         OR (g='xwvutsr' AND f GLOB 'defgh*')
+         OR a=54
+         OR b=770
+         OR ((a BETWEEN 96 AND 98) AND a!=97)
+         OR a=81
+         OR b=190
+         OR a=2
+  }
+} {2 3 25 51 54 70 77 81 96 98 scan 0 sort 0}
+do_test where7-2.653.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f='zabcdefgh'
+         OR (g='xwvutsr' AND f GLOB 'defgh*')
+         OR a=54
+         OR b=770
+         OR ((a BETWEEN 96 AND 98) AND a!=97)
+         OR a=81
+         OR b=190
+         OR a=2
+  }
+} {2 3 25 51 54 70 77 81 96 98 scan 0 sort 0}
+do_test where7-2.654.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=12.0 AND d<13.0 AND d NOT NULL)
+         OR c=12012
+         OR a=16
+         OR a=15
+         OR ((a BETWEEN 70 AND 72) AND a!=71)
+         OR a=69
+         OR b=748
+         OR a=61
+         OR b=473
+         OR ((a BETWEEN 69 AND 71) AND a!=70)
+  }
+} {12 15 16 34 35 36 43 61 68 69 70 71 72 scan 0 sort 0}
+do_test where7-2.654.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=12.0 AND d<13.0 AND d NOT NULL)
+         OR c=12012
+         OR a=16
+         OR a=15
+         OR ((a BETWEEN 70 AND 72) AND a!=71)
+         OR a=69
+         OR b=748
+         OR a=61
+         OR b=473
+         OR ((a BETWEEN 69 AND 71) AND a!=70)
+  }
+} {12 15 16 34 35 36 43 61 68 69 70 71 72 scan 0 sort 0}
+do_test where7-2.655.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=223
+         OR a=14
+         OR ((a BETWEEN 74 AND 76) AND a!=75)
+         OR (g='qponmlk' AND f GLOB 'pqrst*')
+         OR ((a BETWEEN 33 AND 35) AND a!=34)
+         OR b=539
+         OR (d>=48.0 AND d<49.0 AND d NOT NULL)
+         OR (d>=61.0 AND d<62.0 AND d NOT NULL)
+         OR a=21
+  }
+} {14 21 33 35 41 48 49 61 74 76 scan 0 sort 0}
+do_test where7-2.655.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=223
+         OR a=14
+         OR ((a BETWEEN 74 AND 76) AND a!=75)
+         OR (g='qponmlk' AND f GLOB 'pqrst*')
+         OR ((a BETWEEN 33 AND 35) AND a!=34)
+         OR b=539
+         OR (d>=48.0 AND d<49.0 AND d NOT NULL)
+         OR (d>=61.0 AND d<62.0 AND d NOT NULL)
+         OR a=21
+  }
+} {14 21 33 35 41 48 49 61 74 76 scan 0 sort 0}
+do_test where7-2.656.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=99
+         OR (f GLOB '?ghij*' AND f GLOB 'fghi*')
+         OR a=73
+         OR a=56
+         OR b=253
+         OR b=880
+  }
+} {5 23 31 56 57 73 80 83 99 scan 0 sort 0}
+do_test where7-2.656.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=99
+         OR (f GLOB '?ghij*' AND f GLOB 'fghi*')
+         OR a=73
+         OR a=56
+         OR b=253
+         OR b=880
+  }
+} {5 23 31 56 57 73 80 83 99 scan 0 sort 0}
+do_test where7-2.657.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=927
+         OR b=300
+         OR b=223
+         OR (g='wvutsrq' AND f GLOB 'jklmn*')
+         OR (g='fedcbaz' AND f GLOB 'rstuv*')
+         OR b=154
+         OR b=759
+  }
+} {9 14 69 95 scan 0 sort 0}
+do_test where7-2.657.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=927
+         OR b=300
+         OR b=223
+         OR (g='wvutsrq' AND f GLOB 'jklmn*')
+         OR (g='fedcbaz' AND f GLOB 'rstuv*')
+         OR b=154
+         OR b=759
+  }
+} {9 14 69 95 scan 0 sort 0}
+do_test where7-2.658.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=242
+         OR b=905
+         OR (d>=66.0 AND d<67.0 AND d NOT NULL)
+         OR (g='hgfedcb' AND f GLOB 'ijklm*')
+         OR (d>=96.0 AND d<97.0 AND d NOT NULL)
+         OR a=24
+         OR ((a BETWEEN 67 AND 69) AND a!=68)
+         OR b=1100
+         OR b=850
+         OR ((a BETWEEN 55 AND 57) AND a!=56)
+  }
+} {22 24 55 57 66 67 69 86 96 100 scan 0 sort 0}
+do_test where7-2.658.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=242
+         OR b=905
+         OR (d>=66.0 AND d<67.0 AND d NOT NULL)
+         OR (g='hgfedcb' AND f GLOB 'ijklm*')
+         OR (d>=96.0 AND d<97.0 AND d NOT NULL)
+         OR a=24
+         OR ((a BETWEEN 67 AND 69) AND a!=68)
+         OR b=1100
+         OR b=850
+         OR ((a BETWEEN 55 AND 57) AND a!=56)
+  }
+} {22 24 55 57 66 67 69 86 96 100 scan 0 sort 0}
+do_test where7-2.659.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=190
+         OR a=72
+         OR b=377
+         OR (f GLOB '?bcde*' AND f GLOB 'abcd*')
+         OR (d>=93.0 AND d<94.0 AND d NOT NULL)
+         OR b=476
+         OR (g='yxwvuts' AND f GLOB 'cdefg*')
+  }
+} {2 26 52 72 78 93 scan 0 sort 0}
+do_test where7-2.659.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=190
+         OR a=72
+         OR b=377
+         OR (f GLOB '?bcde*' AND f GLOB 'abcd*')
+         OR (d>=93.0 AND d<94.0 AND d NOT NULL)
+         OR b=476
+         OR (g='yxwvuts' AND f GLOB 'cdefg*')
+  }
+} {2 26 52 72 78 93 scan 0 sort 0}
+do_test where7-2.660.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=245
+         OR b=638
+         OR (d>=62.0 AND d<63.0 AND d NOT NULL)
+         OR (g='lkjihgf' AND f GLOB 'pqrst*')
+         OR f='opqrstuvw'
+         OR (d>=86.0 AND d<87.0 AND d NOT NULL)
+         OR b=817
+         OR a=85
+         OR (g='lkjihgf' AND f GLOB 'mnopq*')
+  }
+} {14 40 58 62 64 66 67 85 86 92 scan 0 sort 0}
+do_test where7-2.660.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=245
+         OR b=638
+         OR (d>=62.0 AND d<63.0 AND d NOT NULL)
+         OR (g='lkjihgf' AND f GLOB 'pqrst*')
+         OR f='opqrstuvw'
+         OR (d>=86.0 AND d<87.0 AND d NOT NULL)
+         OR b=817
+         OR a=85
+         OR (g='lkjihgf' AND f GLOB 'mnopq*')
+  }
+} {14 40 58 62 64 66 67 85 86 92 scan 0 sort 0}
+do_test where7-2.661.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 22 AND 24) AND a!=23)
+         OR b=968
+  }
+} {22 24 88 scan 0 sort 0}
+do_test where7-2.661.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 22 AND 24) AND a!=23)
+         OR b=968
+  }
+} {22 24 88 scan 0 sort 0}
+do_test where7-2.662.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 60 AND 62) AND a!=61)
+         OR ((a BETWEEN 74 AND 76) AND a!=75)
+         OR b=22
+         OR b=993
+         OR f='tuvwxyzab'
+  }
+} {2 19 45 60 62 71 74 76 97 scan 0 sort 0}
+do_test where7-2.662.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 60 AND 62) AND a!=61)
+         OR ((a BETWEEN 74 AND 76) AND a!=75)
+         OR b=22
+         OR b=993
+         OR f='tuvwxyzab'
+  }
+} {2 19 45 60 62 71 74 76 97 scan 0 sort 0}
+do_test where7-2.663.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 55 AND 57) AND a!=56)
+         OR (d>=85.0 AND d<86.0 AND d NOT NULL)
+         OR c<=10
+         OR ((a BETWEEN 75 AND 77) AND a!=76)
+         OR (g='kjihgfe' AND f GLOB 'uvwxy*')
+         OR b=553
+         OR (g='jihgfed' AND f GLOB 'vwxyz*')
+         OR b=1045
+  }
+} {55 57 72 73 75 77 85 95 scan 0 sort 0}
+do_test where7-2.663.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 55 AND 57) AND a!=56)
+         OR (d>=85.0 AND d<86.0 AND d NOT NULL)
+         OR c<=10
+         OR ((a BETWEEN 75 AND 77) AND a!=76)
+         OR (g='kjihgfe' AND f GLOB 'uvwxy*')
+         OR b=553
+         OR (g='jihgfed' AND f GLOB 'vwxyz*')
+         OR b=1045
+  }
+} {55 57 72 73 75 77 85 95 scan 0 sort 0}
+do_test where7-2.664.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=440
+         OR ((a BETWEEN 3 AND 5) AND a!=4)
+         OR ((a BETWEEN 44 AND 46) AND a!=45)
+         OR (f GLOB '?ghij*' AND f GLOB 'fghi*')
+         OR a=89
+         OR c=18018
+         OR b=154
+         OR b=506
+         OR (f GLOB '?cdef*' AND f GLOB 'bcde*')
+         OR a=78
+         OR b=751
+  }
+} {1 3 5 14 27 31 40 44 46 52 53 54 57 78 79 83 89 scan 0 sort 0}
+do_test where7-2.664.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=440
+         OR ((a BETWEEN 3 AND 5) AND a!=4)
+         OR ((a BETWEEN 44 AND 46) AND a!=45)
+         OR (f GLOB '?ghij*' AND f GLOB 'fghi*')
+         OR a=89
+         OR c=18018
+         OR b=154
+         OR b=506
+         OR (f GLOB '?cdef*' AND f GLOB 'bcde*')
+         OR a=78
+         OR b=751
+  }
+} {1 3 5 14 27 31 40 44 46 52 53 54 57 78 79 83 89 scan 0 sort 0}
+do_test where7-2.665.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=407
+         OR (g='lkjihgf' AND f GLOB 'nopqr*')
+         OR (g='rqponml' AND f GLOB 'klmno*')
+         OR b=209
+         OR b=814
+         OR (g='wvutsrq' AND f GLOB 'klmno*')
+         OR a=44
+         OR (g='qponmlk' AND f GLOB 'mnopq*')
+         OR (d>=99.0 AND d<100.0 AND d NOT NULL)
+         OR b=1092
+  }
+} {10 19 36 37 38 44 65 74 99 scan 0 sort 0}
+do_test where7-2.665.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=407
+         OR (g='lkjihgf' AND f GLOB 'nopqr*')
+         OR (g='rqponml' AND f GLOB 'klmno*')
+         OR b=209
+         OR b=814
+         OR (g='wvutsrq' AND f GLOB 'klmno*')
+         OR a=44
+         OR (g='qponmlk' AND f GLOB 'mnopq*')
+         OR (d>=99.0 AND d<100.0 AND d NOT NULL)
+         OR b=1092
+  }
+} {10 19 36 37 38 44 65 74 99 scan 0 sort 0}
+do_test where7-2.666.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 24 AND 26) AND a!=25)
+         OR b=1103
+         OR b=190
+         OR b=737
+         OR a=97
+         OR b=451
+         OR b=583
+         OR a=63
+         OR c=8008
+         OR ((a BETWEEN 45 AND 47) AND a!=46)
+  }
+} {22 23 24 26 41 45 47 53 63 67 97 scan 0 sort 0}
+do_test where7-2.666.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 24 AND 26) AND a!=25)
+         OR b=1103
+         OR b=190
+         OR b=737
+         OR a=97
+         OR b=451
+         OR b=583
+         OR a=63
+         OR c=8008
+         OR ((a BETWEEN 45 AND 47) AND a!=46)
+  }
+} {22 23 24 26 41 45 47 53 63 67 97 scan 0 sort 0}
+do_test where7-2.667.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=12
+         OR b=935
+         OR (d>=87.0 AND d<88.0 AND d NOT NULL)
+         OR b=1070
+         OR a=24
+         OR a=95
+         OR ((a BETWEEN 27 AND 29) AND a!=28)
+         OR a=40
+         OR b=935
+         OR (d>=53.0 AND d<54.0 AND d NOT NULL)
+  }
+} {12 24 27 29 40 53 85 87 95 scan 0 sort 0}
+do_test where7-2.667.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=12
+         OR b=935
+         OR (d>=87.0 AND d<88.0 AND d NOT NULL)
+         OR b=1070
+         OR a=24
+         OR a=95
+         OR ((a BETWEEN 27 AND 29) AND a!=28)
+         OR a=40
+         OR b=935
+         OR (d>=53.0 AND d<54.0 AND d NOT NULL)
+  }
+} {12 24 27 29 40 53 85 87 95 scan 0 sort 0}
+do_test where7-2.668.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=858
+         OR a=82
+         OR b=209
+         OR b=374
+         OR ((a BETWEEN 76 AND 78) AND a!=77)
+         OR (d>=40.0 AND d<41.0 AND d NOT NULL)
+         OR c=22022
+  }
+} {19 34 40 64 65 66 76 78 82 scan 0 sort 0}
+do_test where7-2.668.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=858
+         OR a=82
+         OR b=209
+         OR b=374
+         OR ((a BETWEEN 76 AND 78) AND a!=77)
+         OR (d>=40.0 AND d<41.0 AND d NOT NULL)
+         OR c=22022
+  }
+} {19 34 40 64 65 66 76 78 82 scan 0 sort 0}
+do_test where7-2.669.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=27
+         OR (g='rqponml' AND f GLOB 'lmnop*')
+         OR b=121
+         OR ((a BETWEEN 7 AND 9) AND a!=8)
+         OR (g='wvutsrq' AND f GLOB 'ijklm*')
+         OR a=67
+         OR ((a BETWEEN 30 AND 32) AND a!=31)
+         OR c=1001
+         OR ((a BETWEEN 50 AND 52) AND a!=51)
+         OR ((a BETWEEN 19 AND 21) AND a!=20)
+  }
+} {1 2 3 7 8 9 11 19 21 27 30 32 37 50 52 67 scan 0 sort 0}
+do_test where7-2.669.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=27
+         OR (g='rqponml' AND f GLOB 'lmnop*')
+         OR b=121
+         OR ((a BETWEEN 7 AND 9) AND a!=8)
+         OR (g='wvutsrq' AND f GLOB 'ijklm*')
+         OR a=67
+         OR ((a BETWEEN 30 AND 32) AND a!=31)
+         OR c=1001
+         OR ((a BETWEEN 50 AND 52) AND a!=51)
+         OR ((a BETWEEN 19 AND 21) AND a!=20)
+  }
+} {1 2 3 7 8 9 11 19 21 27 30 32 37 50 52 67 scan 0 sort 0}
+do_test where7-2.670.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=99
+         OR (g='nmlkjih' AND f GLOB 'fghij*')
+         OR (d>=98.0 AND d<99.0 AND d NOT NULL)
+         OR (d>=1.0 AND d<2.0 AND d NOT NULL)
+         OR (d>=46.0 AND d<47.0 AND d NOT NULL)
+  }
+} {1 9 46 57 98 scan 0 sort 0}
+do_test where7-2.670.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=99
+         OR (g='nmlkjih' AND f GLOB 'fghij*')
+         OR (d>=98.0 AND d<99.0 AND d NOT NULL)
+         OR (d>=1.0 AND d<2.0 AND d NOT NULL)
+         OR (d>=46.0 AND d<47.0 AND d NOT NULL)
+  }
+} {1 9 46 57 98 scan 0 sort 0}
+do_test where7-2.671.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=3
+         OR (d>=62.0 AND d<63.0 AND d NOT NULL)
+         OR b=355
+         OR b=814
+         OR (g='ihgfedc' AND f GLOB 'bcdef*')
+         OR a=81
+         OR (g='qponmlk' AND f GLOB 'qrstu*')
+         OR b=542
+         OR b=795
+  }
+} {3 42 62 74 79 81 scan 0 sort 0}
+do_test where7-2.671.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=3
+         OR (d>=62.0 AND d<63.0 AND d NOT NULL)
+         OR b=355
+         OR b=814
+         OR (g='ihgfedc' AND f GLOB 'bcdef*')
+         OR a=81
+         OR (g='qponmlk' AND f GLOB 'qrstu*')
+         OR b=542
+         OR b=795
+  }
+} {3 42 62 74 79 81 scan 0 sort 0}
+do_test where7-2.672.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=1.0 AND d<2.0 AND d NOT NULL)
+         OR (d>=56.0 AND d<57.0 AND d NOT NULL)
+         OR b=363
+         OR (g='srqponm' AND f GLOB 'fghij*')
+         OR ((a BETWEEN 64 AND 66) AND a!=65)
+         OR b=619
+         OR (g='vutsrqp' AND f GLOB 'opqrs*')
+         OR a=73
+  }
+} {1 14 31 33 56 64 66 73 scan 0 sort 0}
+do_test where7-2.672.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=1.0 AND d<2.0 AND d NOT NULL)
+         OR (d>=56.0 AND d<57.0 AND d NOT NULL)
+         OR b=363
+         OR (g='srqponm' AND f GLOB 'fghij*')
+         OR ((a BETWEEN 64 AND 66) AND a!=65)
+         OR b=619
+         OR (g='vutsrqp' AND f GLOB 'opqrs*')
+         OR a=73
+  }
+} {1 14 31 33 56 64 66 73 scan 0 sort 0}
+do_test where7-2.673.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=935
+         OR a=42
+         OR (g='nmlkjih' AND f GLOB 'defgh*')
+         OR b=330
+         OR (f GLOB '?klmn*' AND f GLOB 'jklm*')
+  }
+} {9 30 35 42 55 61 85 87 scan 0 sort 0}
+do_test where7-2.673.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=935
+         OR a=42
+         OR (g='nmlkjih' AND f GLOB 'defgh*')
+         OR b=330
+         OR (f GLOB '?klmn*' AND f GLOB 'jklm*')
+  }
+} {9 30 35 42 55 61 85 87 scan 0 sort 0}
+do_test where7-2.674.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=79
+         OR b=201
+         OR b=99
+         OR (d>=21.0 AND d<22.0 AND d NOT NULL)
+         OR (d>=19.0 AND d<20.0 AND d NOT NULL)
+         OR a=64
+         OR (f GLOB '?rstu*' AND f GLOB 'qrst*')
+         OR a=89
+  }
+} {9 16 19 21 42 64 68 79 89 94 scan 0 sort 0}
+do_test where7-2.674.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=79
+         OR b=201
+         OR b=99
+         OR (d>=21.0 AND d<22.0 AND d NOT NULL)
+         OR (d>=19.0 AND d<20.0 AND d NOT NULL)
+         OR a=64
+         OR (f GLOB '?rstu*' AND f GLOB 'qrst*')
+         OR a=89
+  }
+} {9 16 19 21 42 64 68 79 89 94 scan 0 sort 0}
+do_test where7-2.675.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=784
+         OR a=85
+         OR b=663
+         OR c=17017
+         OR b=561
+         OR (g='kjihgfe' AND f GLOB 'qrstu*')
+         OR b=495
+         OR (g='lkjihgf' AND f GLOB 'nopqr*')
+         OR b=352
+         OR ((a BETWEEN 39 AND 41) AND a!=40)
+  }
+} {32 39 41 45 49 50 51 65 68 85 scan 0 sort 0}
+do_test where7-2.675.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=784
+         OR a=85
+         OR b=663
+         OR c=17017
+         OR b=561
+         OR (g='kjihgfe' AND f GLOB 'qrstu*')
+         OR b=495
+         OR (g='lkjihgf' AND f GLOB 'nopqr*')
+         OR b=352
+         OR ((a BETWEEN 39 AND 41) AND a!=40)
+  }
+} {32 39 41 45 49 50 51 65 68 85 scan 0 sort 0}
+do_test where7-2.676.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=100.0 AND d<101.0 AND d NOT NULL)
+         OR (g='utsrqpo' AND f GLOB 'tuvwx*')
+         OR f='klmnopqrs'
+         OR f='lmnopqrst'
+  }
+} {10 11 19 36 37 62 63 88 89 100 scan 0 sort 0}
+do_test where7-2.676.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=100.0 AND d<101.0 AND d NOT NULL)
+         OR (g='utsrqpo' AND f GLOB 'tuvwx*')
+         OR f='klmnopqrs'
+         OR f='lmnopqrst'
+  }
+} {10 11 19 36 37 62 63 88 89 100 scan 0 sort 0}
+do_test where7-2.677.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 90 AND 92) AND a!=91)
+         OR a=46
+         OR a=44
+  }
+} {44 46 90 92 scan 0 sort 0}
+do_test where7-2.677.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 90 AND 92) AND a!=91)
+         OR a=46
+         OR a=44
+  }
+} {44 46 90 92 scan 0 sort 0}
+do_test where7-2.678.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=36
+         OR (g='qponmlk' AND f GLOB 'nopqr*')
+         OR ((a BETWEEN 18 AND 20) AND a!=19)
+         OR b=682
+         OR ((a BETWEEN 53 AND 55) AND a!=54)
+         OR b=91
+         OR (g='ponmlkj' AND f GLOB 'rstuv*')
+         OR ((a BETWEEN 95 AND 97) AND a!=96)
+         OR c=12012
+         OR b=267
+         OR (g='jihgfed' AND f GLOB 'yzabc*')
+  }
+} {18 20 34 35 36 39 43 53 55 62 76 95 97 scan 0 sort 0}
+do_test where7-2.678.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=36
+         OR (g='qponmlk' AND f GLOB 'nopqr*')
+         OR ((a BETWEEN 18 AND 20) AND a!=19)
+         OR b=682
+         OR ((a BETWEEN 53 AND 55) AND a!=54)
+         OR b=91
+         OR (g='ponmlkj' AND f GLOB 'rstuv*')
+         OR ((a BETWEEN 95 AND 97) AND a!=96)
+         OR c=12012
+         OR b=267
+         OR (g='jihgfed' AND f GLOB 'yzabc*')
+  }
+} {18 20 34 35 36 39 43 53 55 62 76 95 97 scan 0 sort 0}
+do_test where7-2.679.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=594
+         OR f='hijklmnop'
+         OR ((a BETWEEN 65 AND 67) AND a!=66)
+         OR (g='mlkjihg' AND f GLOB 'ghijk*')
+         OR b=707
+         OR b=363
+         OR (d>=12.0 AND d<13.0 AND d NOT NULL)
+         OR b=157
+         OR (g='tsrqpon' AND f GLOB 'yzabc*')
+  }
+} {7 12 24 33 54 58 59 65 67 85 scan 0 sort 0}
+do_test where7-2.679.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=594
+         OR f='hijklmnop'
+         OR ((a BETWEEN 65 AND 67) AND a!=66)
+         OR (g='mlkjihg' AND f GLOB 'ghijk*')
+         OR b=707
+         OR b=363
+         OR (d>=12.0 AND d<13.0 AND d NOT NULL)
+         OR b=157
+         OR (g='tsrqpon' AND f GLOB 'yzabc*')
+  }
+} {7 12 24 33 54 58 59 65 67 85 scan 0 sort 0}
+do_test where7-2.680.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=27.0 AND d<28.0 AND d NOT NULL)
+         OR a=2
+         OR a=84
+         OR b=399
+         OR b=828
+         OR a=21
+         OR b=748
+         OR c=13013
+         OR a=57
+         OR f='mnopqrstu'
+  }
+} {2 12 21 27 37 38 39 57 64 68 84 90 scan 0 sort 0}
+do_test where7-2.680.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=27.0 AND d<28.0 AND d NOT NULL)
+         OR a=2
+         OR a=84
+         OR b=399
+         OR b=828
+         OR a=21
+         OR b=748
+         OR c=13013
+         OR a=57
+         OR f='mnopqrstu'
+  }
+} {2 12 21 27 37 38 39 57 64 68 84 90 scan 0 sort 0}
+do_test where7-2.681.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='nmlkjih' AND f GLOB 'defgh*')
+         OR b=674
+         OR ((a BETWEEN 38 AND 40) AND a!=39)
+         OR c=3003
+         OR a=19
+         OR (d>=46.0 AND d<47.0 AND d NOT NULL)
+         OR ((a BETWEEN 20 AND 22) AND a!=21)
+  }
+} {7 8 9 19 20 22 38 40 46 55 scan 0 sort 0}
+do_test where7-2.681.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='nmlkjih' AND f GLOB 'defgh*')
+         OR b=674
+         OR ((a BETWEEN 38 AND 40) AND a!=39)
+         OR c=3003
+         OR a=19
+         OR (d>=46.0 AND d<47.0 AND d NOT NULL)
+         OR ((a BETWEEN 20 AND 22) AND a!=21)
+  }
+} {7 8 9 19 20 22 38 40 46 55 scan 0 sort 0}
+do_test where7-2.682.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=652
+         OR a=83
+         OR (d>=97.0 AND d<98.0 AND d NOT NULL)
+         OR b=102
+         OR b=300
+         OR (d>=49.0 AND d<50.0 AND d NOT NULL)
+  }
+} {49 83 97 scan 0 sort 0}
+do_test where7-2.682.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=652
+         OR a=83
+         OR (d>=97.0 AND d<98.0 AND d NOT NULL)
+         OR b=102
+         OR b=300
+         OR (d>=49.0 AND d<50.0 AND d NOT NULL)
+  }
+} {49 83 97 scan 0 sort 0}
+do_test where7-2.683.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 53 AND 55) AND a!=54)
+         OR ((a BETWEEN 43 AND 45) AND a!=44)
+         OR c=4004
+         OR a=95
+         OR b=707
+         OR f='vwxyzabcd'
+         OR b=286
+         OR (g='wvutsrq' AND f GLOB 'mnopq*')
+         OR b=693
+         OR ((a BETWEEN 6 AND 8) AND a!=7)
+  }
+} {6 8 10 11 12 21 26 43 45 47 53 55 63 73 95 99 scan 0 sort 0}
+do_test where7-2.683.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 53 AND 55) AND a!=54)
+         OR ((a BETWEEN 43 AND 45) AND a!=44)
+         OR c=4004
+         OR a=95
+         OR b=707
+         OR f='vwxyzabcd'
+         OR b=286
+         OR (g='wvutsrq' AND f GLOB 'mnopq*')
+         OR b=693
+         OR ((a BETWEEN 6 AND 8) AND a!=7)
+  }
+} {6 8 10 11 12 21 26 43 45 47 53 55 63 73 95 99 scan 0 sort 0}
+do_test where7-2.684.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=209
+         OR b=198
+         OR a=52
+         OR (d>=64.0 AND d<65.0 AND d NOT NULL)
+         OR d<0.0
+         OR (g='rqponml' AND f GLOB 'jklmn*')
+         OR (f GLOB '?ijkl*' AND f GLOB 'hijk*')
+         OR b=168
+         OR (d>=24.0 AND d<25.0 AND d NOT NULL)
+         OR f='uvwxyzabc'
+         OR (d>=42.0 AND d<43.0 AND d NOT NULL)
+  }
+} {7 18 19 20 24 33 35 42 46 52 59 64 72 85 98 scan 0 sort 0}
+do_test where7-2.684.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=209
+         OR b=198
+         OR a=52
+         OR (d>=64.0 AND d<65.0 AND d NOT NULL)
+         OR d<0.0
+         OR (g='rqponml' AND f GLOB 'jklmn*')
+         OR (f GLOB '?ijkl*' AND f GLOB 'hijk*')
+         OR b=168
+         OR (d>=24.0 AND d<25.0 AND d NOT NULL)
+         OR f='uvwxyzabc'
+         OR (d>=42.0 AND d<43.0 AND d NOT NULL)
+  }
+} {7 18 19 20 24 33 35 42 46 52 59 64 72 85 98 scan 0 sort 0}
+do_test where7-2.685.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 4 AND 6) AND a!=5)
+         OR (g='tsrqpon' AND f GLOB 'abcde*')
+         OR ((a BETWEEN 89 AND 91) AND a!=90)
+         OR f='rstuvwxyz'
+         OR (f GLOB '?wxyz*' AND f GLOB 'vwxy*')
+         OR (g='hgfedcb' AND f GLOB 'ghijk*')
+         OR (g='wvutsrq' AND f GLOB 'ijklm*')
+         OR a=14
+         OR (d>=12.0 AND d<13.0 AND d NOT NULL)
+  }
+} {4 6 8 12 14 17 21 26 43 47 69 73 84 89 91 95 99 scan 0 sort 0}
+do_test where7-2.685.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 4 AND 6) AND a!=5)
+         OR (g='tsrqpon' AND f GLOB 'abcde*')
+         OR ((a BETWEEN 89 AND 91) AND a!=90)
+         OR f='rstuvwxyz'
+         OR (f GLOB '?wxyz*' AND f GLOB 'vwxy*')
+         OR (g='hgfedcb' AND f GLOB 'ghijk*')
+         OR (g='wvutsrq' AND f GLOB 'ijklm*')
+         OR a=14
+         OR (d>=12.0 AND d<13.0 AND d NOT NULL)
+  }
+} {4 6 8 12 14 17 21 26 43 47 69 73 84 89 91 95 99 scan 0 sort 0}
+do_test where7-2.686.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 13 AND 15) AND a!=14)
+         OR ((a BETWEEN 93 AND 95) AND a!=94)
+         OR (g='yxwvuts' AND f GLOB 'cdefg*')
+         OR f='mnopqrstu'
+         OR (g='fedcbaz' AND f GLOB 'tuvwx*')
+         OR ((a BETWEEN 33 AND 35) AND a!=34)
+         OR a=38
+         OR c=26026
+  }
+} {2 12 13 15 33 35 38 64 76 77 78 90 93 95 97 scan 0 sort 0}
+do_test where7-2.686.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 13 AND 15) AND a!=14)
+         OR ((a BETWEEN 93 AND 95) AND a!=94)
+         OR (g='yxwvuts' AND f GLOB 'cdefg*')
+         OR f='mnopqrstu'
+         OR (g='fedcbaz' AND f GLOB 'tuvwx*')
+         OR ((a BETWEEN 33 AND 35) AND a!=34)
+         OR a=38
+         OR c=26026
+  }
+} {2 12 13 15 33 35 38 64 76 77 78 90 93 95 97 scan 0 sort 0}
+do_test where7-2.687.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='ponmlkj' AND f GLOB 'stuvw*')
+         OR ((a BETWEEN 71 AND 73) AND a!=72)
+         OR a=7
+         OR (g='qponmlk' AND f GLOB 'nopqr*')
+         OR (g='srqponm' AND f GLOB 'ghijk*')
+         OR ((a BETWEEN 33 AND 35) AND a!=34)
+  }
+} {7 32 33 35 39 44 71 73 scan 0 sort 0}
+do_test where7-2.687.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='ponmlkj' AND f GLOB 'stuvw*')
+         OR ((a BETWEEN 71 AND 73) AND a!=72)
+         OR a=7
+         OR (g='qponmlk' AND f GLOB 'nopqr*')
+         OR (g='srqponm' AND f GLOB 'ghijk*')
+         OR ((a BETWEEN 33 AND 35) AND a!=34)
+  }
+} {7 32 33 35 39 44 71 73 scan 0 sort 0}
+do_test where7-2.688.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=6006
+         OR b=938
+         OR b=484
+         OR b=652
+         OR (f GLOB '?qrst*' AND f GLOB 'pqrs*')
+         OR (g='mlkjihg' AND f GLOB 'ghijk*')
+         OR f='opqrstuvw'
+  }
+} {14 15 16 17 18 40 41 44 58 66 67 92 93 scan 0 sort 0}
+do_test where7-2.688.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=6006
+         OR b=938
+         OR b=484
+         OR b=652
+         OR (f GLOB '?qrst*' AND f GLOB 'pqrs*')
+         OR (g='mlkjihg' AND f GLOB 'ghijk*')
+         OR f='opqrstuvw'
+  }
+} {14 15 16 17 18 40 41 44 58 66 67 92 93 scan 0 sort 0}
+do_test where7-2.689.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=27027
+         OR b=968
+         OR (d>=51.0 AND d<52.0 AND d NOT NULL)
+         OR b=487
+         OR b=924
+         OR (d>=70.0 AND d<71.0 AND d NOT NULL)
+         OR c=14014
+         OR b=1001
+  }
+} {40 41 42 51 70 79 80 81 84 88 91 scan 0 sort 0}
+do_test where7-2.689.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=27027
+         OR b=968
+         OR (d>=51.0 AND d<52.0 AND d NOT NULL)
+         OR b=487
+         OR b=924
+         OR (d>=70.0 AND d<71.0 AND d NOT NULL)
+         OR c=14014
+         OR b=1001
+  }
+} {40 41 42 51 70 79 80 81 84 88 91 scan 0 sort 0}
+do_test where7-2.690.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=25
+         OR ((a BETWEEN 43 AND 45) AND a!=44)
+         OR (g='gfedcba' AND f GLOB 'mnopq*')
+         OR (f GLOB '?uvwx*' AND f GLOB 'tuvw*')
+         OR (d>=10.0 AND d<11.0 AND d NOT NULL)
+         OR b=443
+         OR b=564
+         OR (g='kjihgfe' AND f GLOB 'rstuv*')
+         OR b=531
+         OR b=1081
+         OR a=96
+  }
+} {10 19 25 43 45 69 71 90 96 97 scan 0 sort 0}
+do_test where7-2.690.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=25
+         OR ((a BETWEEN 43 AND 45) AND a!=44)
+         OR (g='gfedcba' AND f GLOB 'mnopq*')
+         OR (f GLOB '?uvwx*' AND f GLOB 'tuvw*')
+         OR (d>=10.0 AND d<11.0 AND d NOT NULL)
+         OR b=443
+         OR b=564
+         OR (g='kjihgfe' AND f GLOB 'rstuv*')
+         OR b=531
+         OR b=1081
+         OR a=96
+  }
+} {10 19 25 43 45 69 71 90 96 97 scan 0 sort 0}
+do_test where7-2.691.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=36
+         OR (g='srqponm' AND f GLOB 'defgh*')
+  }
+} {29 scan 0 sort 0}
+do_test where7-2.691.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=36
+         OR (g='srqponm' AND f GLOB 'defgh*')
+  }
+} {29 scan 0 sort 0}
+do_test where7-2.692.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='kjihgfe' AND f GLOB 'stuvw*')
+         OR b=531
+         OR ((a BETWEEN 93 AND 95) AND a!=94)
+         OR (d>=3.0 AND d<4.0 AND d NOT NULL)
+  }
+} {3 70 93 95 scan 0 sort 0}
+do_test where7-2.692.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='kjihgfe' AND f GLOB 'stuvw*')
+         OR b=531
+         OR ((a BETWEEN 93 AND 95) AND a!=94)
+         OR (d>=3.0 AND d<4.0 AND d NOT NULL)
+  }
+} {3 70 93 95 scan 0 sort 0}
+do_test where7-2.693.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=256
+         OR b=1034
+  }
+} {94 scan 0 sort 0}
+do_test where7-2.693.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=256
+         OR b=1034
+  }
+} {94 scan 0 sort 0}
+do_test where7-2.694.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=60.0 AND d<61.0 AND d NOT NULL)
+         OR ((a BETWEEN 24 AND 26) AND a!=25)
+         OR (d>=83.0 AND d<84.0 AND d NOT NULL)
+         OR (d>=19.0 AND d<20.0 AND d NOT NULL)
+         OR b=784
+         OR b=718
+         OR a=18
+         OR a=3
+         OR (f GLOB '?wxyz*' AND f GLOB 'vwxy*')
+         OR (g='mlkjihg' AND f GLOB 'ghijk*')
+         OR c=28028
+  }
+} {3 18 19 21 24 26 47 58 60 73 82 83 84 99 scan 0 sort 0}
+do_test where7-2.694.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=60.0 AND d<61.0 AND d NOT NULL)
+         OR ((a BETWEEN 24 AND 26) AND a!=25)
+         OR (d>=83.0 AND d<84.0 AND d NOT NULL)
+         OR (d>=19.0 AND d<20.0 AND d NOT NULL)
+         OR b=784
+         OR b=718
+         OR a=18
+         OR a=3
+         OR (f GLOB '?wxyz*' AND f GLOB 'vwxy*')
+         OR (g='mlkjihg' AND f GLOB 'ghijk*')
+         OR c=28028
+  }
+} {3 18 19 21 24 26 47 58 60 73 82 83 84 99 scan 0 sort 0}
+do_test where7-2.695.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=473
+         OR b=649
+         OR ((a BETWEEN 46 AND 48) AND a!=47)
+         OR (d>=91.0 AND d<92.0 AND d NOT NULL)
+         OR b=1100
+         OR b=1012
+         OR a=72
+         OR (d>=18.0 AND d<19.0 AND d NOT NULL)
+         OR b=176
+         OR b=355
+  }
+} {16 18 43 46 48 59 72 91 92 100 scan 0 sort 0}
+do_test where7-2.695.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=473
+         OR b=649
+         OR ((a BETWEEN 46 AND 48) AND a!=47)
+         OR (d>=91.0 AND d<92.0 AND d NOT NULL)
+         OR b=1100
+         OR b=1012
+         OR a=72
+         OR (d>=18.0 AND d<19.0 AND d NOT NULL)
+         OR b=176
+         OR b=355
+  }
+} {16 18 43 46 48 59 72 91 92 100 scan 0 sort 0}
+do_test where7-2.696.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=15.0 AND d<16.0 AND d NOT NULL)
+         OR f='cdefghijk'
+         OR (d>=19.0 AND d<20.0 AND d NOT NULL)
+         OR ((a BETWEEN 30 AND 32) AND a!=31)
+         OR (d>=29.0 AND d<30.0 AND d NOT NULL)
+         OR (g='srqponm' AND f GLOB 'ghijk*')
+         OR (d>=91.0 AND d<92.0 AND d NOT NULL)
+  }
+} {2 15 19 28 29 30 32 54 80 91 scan 0 sort 0}
+do_test where7-2.696.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=15.0 AND d<16.0 AND d NOT NULL)
+         OR f='cdefghijk'
+         OR (d>=19.0 AND d<20.0 AND d NOT NULL)
+         OR ((a BETWEEN 30 AND 32) AND a!=31)
+         OR (d>=29.0 AND d<30.0 AND d NOT NULL)
+         OR (g='srqponm' AND f GLOB 'ghijk*')
+         OR (d>=91.0 AND d<92.0 AND d NOT NULL)
+  }
+} {2 15 19 28 29 30 32 54 80 91 scan 0 sort 0}
+do_test where7-2.697.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='mlkjihg' AND f GLOB 'ijklm*')
+         OR b=883
+         OR (d>=22.0 AND d<23.0 AND d NOT NULL)
+         OR b=938
+         OR ((a BETWEEN 17 AND 19) AND a!=18)
+         OR f='defghijkl'
+         OR c=2002
+         OR b=990
+  }
+} {3 4 5 6 17 19 22 29 55 60 81 90 scan 0 sort 0}
+do_test where7-2.697.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='mlkjihg' AND f GLOB 'ijklm*')
+         OR b=883
+         OR (d>=22.0 AND d<23.0 AND d NOT NULL)
+         OR b=938
+         OR ((a BETWEEN 17 AND 19) AND a!=18)
+         OR f='defghijkl'
+         OR c=2002
+         OR b=990
+  }
+} {3 4 5 6 17 19 22 29 55 60 81 90 scan 0 sort 0}
+do_test where7-2.698.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 7 AND 9) AND a!=8)
+         OR (d>=76.0 AND d<77.0 AND d NOT NULL)
+         OR b=902
+         OR b=25
+  }
+} {7 9 76 82 scan 0 sort 0}
+do_test where7-2.698.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 7 AND 9) AND a!=8)
+         OR (d>=76.0 AND d<77.0 AND d NOT NULL)
+         OR b=902
+         OR b=25
+  }
+} {7 9 76 82 scan 0 sort 0}
+do_test where7-2.699.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='tsrqpon' AND f GLOB 'abcde*')
+         OR (d>=55.0 AND d<56.0 AND d NOT NULL)
+         OR ((a BETWEEN 68 AND 70) AND a!=69)
+         OR ((a BETWEEN 74 AND 76) AND a!=75)
+         OR b=1092
+         OR b=495
+  }
+} {26 45 55 68 70 74 76 scan 0 sort 0}
+do_test where7-2.699.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='tsrqpon' AND f GLOB 'abcde*')
+         OR (d>=55.0 AND d<56.0 AND d NOT NULL)
+         OR ((a BETWEEN 68 AND 70) AND a!=69)
+         OR ((a BETWEEN 74 AND 76) AND a!=75)
+         OR b=1092
+         OR b=495
+  }
+} {26 45 55 68 70 74 76 scan 0 sort 0}
+do_test where7-2.700.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 90 AND 92) AND a!=91)
+         OR a=46
+         OR a=74
+  }
+} {46 74 90 92 scan 0 sort 0}
+do_test where7-2.700.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 90 AND 92) AND a!=91)
+         OR a=46
+         OR a=74
+  }
+} {46 74 90 92 scan 0 sort 0}
+do_test where7-2.701.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=18
+         OR b=66
+         OR b=498
+         OR b=143
+         OR b=1034
+         OR b=289
+         OR b=319
+  }
+} {6 13 18 29 94 scan 0 sort 0}
+do_test where7-2.701.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=18
+         OR b=66
+         OR b=498
+         OR b=143
+         OR b=1034
+         OR b=289
+         OR b=319
+  }
+} {6 13 18 29 94 scan 0 sort 0}
+do_test where7-2.702.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (f GLOB '?abcd*' AND f GLOB 'zabc*')
+         OR (g='srqponm' AND f GLOB 'efghi*')
+         OR (g='ponmlkj' AND f GLOB 'tuvwx*')
+         OR (g='nmlkjih' AND f GLOB 'cdefg*')
+         OR (g='srqponm' AND f GLOB 'cdefg*')
+         OR (g='ihgfedc' AND f GLOB 'bcdef*')
+         OR f='lmnopqrst'
+         OR ((a BETWEEN 11 AND 13) AND a!=12)
+         OR b=872
+         OR a=44
+         OR ((a BETWEEN 38 AND 40) AND a!=39)
+  }
+} {11 13 25 28 30 37 38 40 44 45 51 54 63 77 79 89 scan 0 sort 0}
+do_test where7-2.702.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (f GLOB '?abcd*' AND f GLOB 'zabc*')
+         OR (g='srqponm' AND f GLOB 'efghi*')
+         OR (g='ponmlkj' AND f GLOB 'tuvwx*')
+         OR (g='nmlkjih' AND f GLOB 'cdefg*')
+         OR (g='srqponm' AND f GLOB 'cdefg*')
+         OR (g='ihgfedc' AND f GLOB 'bcdef*')
+         OR f='lmnopqrst'
+         OR ((a BETWEEN 11 AND 13) AND a!=12)
+         OR b=872
+         OR a=44
+         OR ((a BETWEEN 38 AND 40) AND a!=39)
+  }
+} {11 13 25 28 30 37 38 40 44 45 51 54 63 77 79 89 scan 0 sort 0}
+do_test where7-2.703.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 71 AND 73) AND a!=72)
+         OR a=20
+         OR (g='vutsrqp' AND f GLOB 'rstuv*')
+         OR (g='jihgfed' AND f GLOB 'xyzab*')
+         OR b=1004
+         OR b=77
+         OR b=927
+         OR a=99
+         OR (d>=66.0 AND d<67.0 AND d NOT NULL)
+         OR (f GLOB '?vwxy*' AND f GLOB 'uvwx*')
+  }
+} {7 17 20 46 66 71 72 73 75 98 99 scan 0 sort 0}
+do_test where7-2.703.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 71 AND 73) AND a!=72)
+         OR a=20
+         OR (g='vutsrqp' AND f GLOB 'rstuv*')
+         OR (g='jihgfed' AND f GLOB 'xyzab*')
+         OR b=1004
+         OR b=77
+         OR b=927
+         OR a=99
+         OR (d>=66.0 AND d<67.0 AND d NOT NULL)
+         OR (f GLOB '?vwxy*' AND f GLOB 'uvwx*')
+  }
+} {7 17 20 46 66 71 72 73 75 98 99 scan 0 sort 0}
+do_test where7-2.704.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=76.0 AND d<77.0 AND d NOT NULL)
+         OR (d>=45.0 AND d<46.0 AND d NOT NULL)
+         OR b=11
+         OR ((a BETWEEN 21 AND 23) AND a!=22)
+  }
+} {1 21 23 45 76 scan 0 sort 0}
+do_test where7-2.704.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=76.0 AND d<77.0 AND d NOT NULL)
+         OR (d>=45.0 AND d<46.0 AND d NOT NULL)
+         OR b=11
+         OR ((a BETWEEN 21 AND 23) AND a!=22)
+  }
+} {1 21 23 45 76 scan 0 sort 0}
+do_test where7-2.705.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=572
+         OR (g='nmlkjih' AND f GLOB 'fghij*')
+  }
+} {52 57 scan 0 sort 0}
+do_test where7-2.705.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=572
+         OR (g='nmlkjih' AND f GLOB 'fghij*')
+  }
+} {52 57 scan 0 sort 0}
+do_test where7-2.706.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=44.0 AND d<45.0 AND d NOT NULL)
+         OR ((a BETWEEN 54 AND 56) AND a!=55)
+         OR f='lmnopqrst'
+         OR (f GLOB '?lmno*' AND f GLOB 'klmn*')
+         OR (g='ihgfedc' AND f GLOB 'defgh*')
+         OR a=23
+         OR (d>=69.0 AND d<70.0 AND d NOT NULL)
+  }
+} {10 11 23 36 37 44 54 56 62 63 69 81 88 89 scan 0 sort 0}
+do_test where7-2.706.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=44.0 AND d<45.0 AND d NOT NULL)
+         OR ((a BETWEEN 54 AND 56) AND a!=55)
+         OR f='lmnopqrst'
+         OR (f GLOB '?lmno*' AND f GLOB 'klmn*')
+         OR (g='ihgfedc' AND f GLOB 'defgh*')
+         OR a=23
+         OR (d>=69.0 AND d<70.0 AND d NOT NULL)
+  }
+} {10 11 23 36 37 44 54 56 62 63 69 81 88 89 scan 0 sort 0}
+do_test where7-2.707.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=836
+         OR ((a BETWEEN 89 AND 91) AND a!=90)
+         OR b=605
+         OR (d>=46.0 AND d<47.0 AND d NOT NULL)
+         OR (g='kjihgfe' AND f GLOB 'stuvw*')
+         OR b=759
+         OR (f GLOB '?zabc*' AND f GLOB 'yzab*')
+         OR ((a BETWEEN 38 AND 40) AND a!=39)
+         OR a=40
+         OR f='ghijklmno'
+         OR (g='hgfedcb' AND f GLOB 'hijkl*')
+  }
+} {6 24 32 38 40 46 50 55 58 69 70 76 84 85 89 91 scan 0 sort 0}
+do_test where7-2.707.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=836
+         OR ((a BETWEEN 89 AND 91) AND a!=90)
+         OR b=605
+         OR (d>=46.0 AND d<47.0 AND d NOT NULL)
+         OR (g='kjihgfe' AND f GLOB 'stuvw*')
+         OR b=759
+         OR (f GLOB '?zabc*' AND f GLOB 'yzab*')
+         OR ((a BETWEEN 38 AND 40) AND a!=39)
+         OR a=40
+         OR f='ghijklmno'
+         OR (g='hgfedcb' AND f GLOB 'hijkl*')
+  }
+} {6 24 32 38 40 46 50 55 58 69 70 76 84 85 89 91 scan 0 sort 0}
+do_test where7-2.708.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=51.0 AND d<52.0 AND d NOT NULL)
+         OR (d>=42.0 AND d<43.0 AND d NOT NULL)
+  }
+} {42 51 scan 0 sort 0}
+do_test where7-2.708.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=51.0 AND d<52.0 AND d NOT NULL)
+         OR (d>=42.0 AND d<43.0 AND d NOT NULL)
+  }
+} {42 51 scan 0 sort 0}
+do_test where7-2.709.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=27027
+         OR b=872
+         OR a=56
+  }
+} {56 79 80 81 scan 0 sort 0}
+do_test where7-2.709.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=27027
+         OR b=872
+         OR a=56
+  }
+} {56 79 80 81 scan 0 sort 0}
+do_test where7-2.710.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=685
+         OR b=256
+         OR ((a BETWEEN 78 AND 80) AND a!=79)
+         OR a=44
+         OR a=63
+         OR a=15
+         OR ((a BETWEEN 22 AND 24) AND a!=23)
+  }
+} {15 22 24 44 63 78 80 scan 0 sort 0}
+do_test where7-2.710.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=685
+         OR b=256
+         OR ((a BETWEEN 78 AND 80) AND a!=79)
+         OR a=44
+         OR a=63
+         OR a=15
+         OR ((a BETWEEN 22 AND 24) AND a!=23)
+  }
+} {15 22 24 44 63 78 80 scan 0 sort 0}
+do_test where7-2.711.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='nmlkjih' AND f GLOB 'efghi*')
+         OR a=34
+         OR ((a BETWEEN 6 AND 8) AND a!=7)
+         OR (d>=75.0 AND d<76.0 AND d NOT NULL)
+         OR a=67
+         OR a=28
+  }
+} {6 8 28 34 56 67 75 scan 0 sort 0}
+do_test where7-2.711.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='nmlkjih' AND f GLOB 'efghi*')
+         OR a=34
+         OR ((a BETWEEN 6 AND 8) AND a!=7)
+         OR (d>=75.0 AND d<76.0 AND d NOT NULL)
+         OR a=67
+         OR a=28
+  }
+} {6 8 28 34 56 67 75 scan 0 sort 0}
+do_test where7-2.712.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='qponmlk' AND f GLOB 'pqrst*')
+         OR a=52
+         OR ((a BETWEEN 68 AND 70) AND a!=69)
+         OR (d>=24.0 AND d<25.0 AND d NOT NULL)
+         OR f='ghijklmno'
+         OR (g='utsrqpo' AND f GLOB 'stuvw*')
+         OR (f GLOB '?hijk*' AND f GLOB 'ghij*')
+         OR b=319
+         OR a=34
+         OR (g='wvutsrq' AND f GLOB 'mnopq*')
+         OR f='hijklmnop'
+  }
+} {6 7 12 18 24 29 32 33 34 41 52 58 59 68 70 84 85 scan 0 sort 0}
+do_test where7-2.712.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='qponmlk' AND f GLOB 'pqrst*')
+         OR a=52
+         OR ((a BETWEEN 68 AND 70) AND a!=69)
+         OR (d>=24.0 AND d<25.0 AND d NOT NULL)
+         OR f='ghijklmno'
+         OR (g='utsrqpo' AND f GLOB 'stuvw*')
+         OR (f GLOB '?hijk*' AND f GLOB 'ghij*')
+         OR b=319
+         OR a=34
+         OR (g='wvutsrq' AND f GLOB 'mnopq*')
+         OR f='hijklmnop'
+  }
+} {6 7 12 18 24 29 32 33 34 41 52 58 59 68 70 84 85 scan 0 sort 0}
+do_test where7-2.713.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='qponmlk' AND f GLOB 'pqrst*')
+         OR ((a BETWEEN 69 AND 71) AND a!=70)
+         OR (d>=71.0 AND d<72.0 AND d NOT NULL)
+         OR a=47
+  }
+} {41 47 69 71 scan 0 sort 0}
+do_test where7-2.713.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='qponmlk' AND f GLOB 'pqrst*')
+         OR ((a BETWEEN 69 AND 71) AND a!=70)
+         OR (d>=71.0 AND d<72.0 AND d NOT NULL)
+         OR a=47
+  }
+} {41 47 69 71 scan 0 sort 0}
+do_test where7-2.714.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 33 AND 35) AND a!=34)
+         OR c=7007
+  }
+} {19 20 21 33 35 scan 0 sort 0}
+do_test where7-2.714.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 33 AND 35) AND a!=34)
+         OR c=7007
+  }
+} {19 20 21 33 35 scan 0 sort 0}
+do_test where7-2.715.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=531
+         OR a=12
+         OR b=583
+         OR ((a BETWEEN 93 AND 95) AND a!=94)
+         OR a=61
+         OR b=187
+  }
+} {12 17 53 61 93 95 scan 0 sort 0}
+do_test where7-2.715.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=531
+         OR a=12
+         OR b=583
+         OR ((a BETWEEN 93 AND 95) AND a!=94)
+         OR a=61
+         OR b=187
+  }
+} {12 17 53 61 93 95 scan 0 sort 0}
+do_test where7-2.716.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=31031
+         OR (d>=12.0 AND d<13.0 AND d NOT NULL)
+         OR (g='ponmlkj' AND f GLOB 'tuvwx*')
+         OR ((a BETWEEN 66 AND 68) AND a!=67)
+         OR b=256
+         OR ((a BETWEEN 77 AND 79) AND a!=78)
+         OR (g='qponmlk' AND f GLOB 'mnopq*')
+         OR b=715
+         OR b=212
+         OR b=99
+         OR c=29029
+  }
+} {9 12 38 45 65 66 68 77 79 85 86 87 91 92 93 scan 0 sort 0}
+do_test where7-2.716.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=31031
+         OR (d>=12.0 AND d<13.0 AND d NOT NULL)
+         OR (g='ponmlkj' AND f GLOB 'tuvwx*')
+         OR ((a BETWEEN 66 AND 68) AND a!=67)
+         OR b=256
+         OR ((a BETWEEN 77 AND 79) AND a!=78)
+         OR (g='qponmlk' AND f GLOB 'mnopq*')
+         OR b=715
+         OR b=212
+         OR b=99
+         OR c=29029
+  }
+} {9 12 38 45 65 66 68 77 79 85 86 87 91 92 93 scan 0 sort 0}
+do_test where7-2.717.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 40 AND 42) AND a!=41)
+         OR b=33
+         OR a=62
+         OR b=916
+         OR b=1012
+         OR a=2
+         OR a=51
+         OR b=286
+         OR (d>=96.0 AND d<97.0 AND d NOT NULL)
+         OR b=80
+  }
+} {2 3 26 40 42 51 62 92 96 scan 0 sort 0}
+do_test where7-2.717.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 40 AND 42) AND a!=41)
+         OR b=33
+         OR a=62
+         OR b=916
+         OR b=1012
+         OR a=2
+         OR a=51
+         OR b=286
+         OR (d>=96.0 AND d<97.0 AND d NOT NULL)
+         OR b=80
+  }
+} {2 3 26 40 42 51 62 92 96 scan 0 sort 0}
+do_test where7-2.718.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=847
+         OR f='efghijklm'
+         OR (d>=6.0 AND d<7.0 AND d NOT NULL)
+  }
+} {4 6 30 56 77 82 scan 0 sort 0}
+do_test where7-2.718.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=847
+         OR f='efghijklm'
+         OR (d>=6.0 AND d<7.0 AND d NOT NULL)
+  }
+} {4 6 30 56 77 82 scan 0 sort 0}
+do_test where7-2.719.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='tsrqpon' AND f GLOB 'zabcd*')
+         OR ((a BETWEEN 62 AND 64) AND a!=63)
+  }
+} {25 62 64 scan 0 sort 0}
+do_test where7-2.719.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='tsrqpon' AND f GLOB 'zabcd*')
+         OR ((a BETWEEN 62 AND 64) AND a!=63)
+  }
+} {25 62 64 scan 0 sort 0}
+do_test where7-2.720.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 43 AND 45) AND a!=44)
+         OR ((a BETWEEN 31 AND 33) AND a!=32)
+         OR (g='nmlkjih' AND f GLOB 'bcdef*')
+         OR a=43
+         OR (d>=14.0 AND d<15.0 AND d NOT NULL)
+         OR b=729
+         OR (g='vutsrqp' AND f GLOB 'opqrs*')
+  }
+} {14 31 33 43 45 53 scan 0 sort 0}
+do_test where7-2.720.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 43 AND 45) AND a!=44)
+         OR ((a BETWEEN 31 AND 33) AND a!=32)
+         OR (g='nmlkjih' AND f GLOB 'bcdef*')
+         OR a=43
+         OR (d>=14.0 AND d<15.0 AND d NOT NULL)
+         OR b=729
+         OR (g='vutsrqp' AND f GLOB 'opqrs*')
+  }
+} {14 31 33 43 45 53 scan 0 sort 0}
+do_test where7-2.721.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f='efghijklm'
+         OR a=70
+         OR b=278
+         OR ((a BETWEEN 33 AND 35) AND a!=34)
+         OR c=8008
+         OR f='opqrstuvw'
+         OR ((a BETWEEN 23 AND 25) AND a!=24)
+         OR (g='xwvutsr' AND f GLOB 'fghij*')
+  }
+} {4 5 14 22 23 24 25 30 33 35 40 56 66 70 82 92 scan 0 sort 0}
+do_test where7-2.721.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f='efghijklm'
+         OR a=70
+         OR b=278
+         OR ((a BETWEEN 33 AND 35) AND a!=34)
+         OR c=8008
+         OR f='opqrstuvw'
+         OR ((a BETWEEN 23 AND 25) AND a!=24)
+         OR (g='xwvutsr' AND f GLOB 'fghij*')
+  }
+} {4 5 14 22 23 24 25 30 33 35 40 56 66 70 82 92 scan 0 sort 0}
+do_test where7-2.722.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 40 AND 42) AND a!=41)
+         OR (d>=62.0 AND d<63.0 AND d NOT NULL)
+         OR c<=10
+         OR (g='srqponm' AND f GLOB 'fghij*')
+         OR a=35
+         OR (f GLOB '?hijk*' AND f GLOB 'ghij*')
+         OR b=1089
+         OR a=73
+         OR b=737
+         OR c=18018
+         OR (d>=23.0 AND d<24.0 AND d NOT NULL)
+  }
+} {6 23 31 32 35 40 42 52 53 54 58 62 67 73 84 99 scan 0 sort 0}
+do_test where7-2.722.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 40 AND 42) AND a!=41)
+         OR (d>=62.0 AND d<63.0 AND d NOT NULL)
+         OR c<=10
+         OR (g='srqponm' AND f GLOB 'fghij*')
+         OR a=35
+         OR (f GLOB '?hijk*' AND f GLOB 'ghij*')
+         OR b=1089
+         OR a=73
+         OR b=737
+         OR c=18018
+         OR (d>=23.0 AND d<24.0 AND d NOT NULL)
+  }
+} {6 23 31 32 35 40 42 52 53 54 58 62 67 73 84 99 scan 0 sort 0}
+do_test where7-2.723.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 0 AND 2) AND a!=1)
+         OR (d>=79.0 AND d<80.0 AND d NOT NULL)
+         OR (g='fedcbaz' AND f GLOB 'rstuv*')
+         OR b=762
+         OR ((a BETWEEN 39 AND 41) AND a!=40)
+         OR a=80
+  }
+} {2 39 41 79 80 95 scan 0 sort 0}
+do_test where7-2.723.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 0 AND 2) AND a!=1)
+         OR (d>=79.0 AND d<80.0 AND d NOT NULL)
+         OR (g='fedcbaz' AND f GLOB 'rstuv*')
+         OR b=762
+         OR ((a BETWEEN 39 AND 41) AND a!=40)
+         OR a=80
+  }
+} {2 39 41 79 80 95 scan 0 sort 0}
+do_test where7-2.724.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 28 AND 30) AND a!=29)
+         OR b=737
+         OR ((a BETWEEN 80 AND 82) AND a!=81)
+         OR b=979
+         OR a=36
+         OR (f GLOB '?vwxy*' AND f GLOB 'uvwx*')
+         OR (d>=50.0 AND d<51.0 AND d NOT NULL)
+         OR a=55
+         OR (g='fedcbaz' AND f GLOB 'rstuv*')
+  }
+} {20 28 30 36 46 50 55 67 72 80 82 89 95 98 scan 0 sort 0}
+do_test where7-2.724.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 28 AND 30) AND a!=29)
+         OR b=737
+         OR ((a BETWEEN 80 AND 82) AND a!=81)
+         OR b=979
+         OR a=36
+         OR (f GLOB '?vwxy*' AND f GLOB 'uvwx*')
+         OR (d>=50.0 AND d<51.0 AND d NOT NULL)
+         OR a=55
+         OR (g='fedcbaz' AND f GLOB 'rstuv*')
+  }
+} {20 28 30 36 46 50 55 67 72 80 82 89 95 98 scan 0 sort 0}
+do_test where7-2.725.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=75
+         OR a=61
+         OR (g='onmlkji' AND f GLOB 'abcde*')
+         OR (g='gfedcba' AND f GLOB 'nopqr*')
+  }
+} {52 61 75 91 scan 0 sort 0}
+do_test where7-2.725.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=75
+         OR a=61
+         OR (g='onmlkji' AND f GLOB 'abcde*')
+         OR (g='gfedcba' AND f GLOB 'nopqr*')
+  }
+} {52 61 75 91 scan 0 sort 0}
+do_test where7-2.726.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=1004
+         OR (g='mlkjihg' AND f GLOB 'jklmn*')
+         OR (d>=7.0 AND d<8.0 AND d NOT NULL)
+         OR a=56
+  }
+} {7 56 61 scan 0 sort 0}
+do_test where7-2.726.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=1004
+         OR (g='mlkjihg' AND f GLOB 'jklmn*')
+         OR (d>=7.0 AND d<8.0 AND d NOT NULL)
+         OR a=56
+  }
+} {7 56 61 scan 0 sort 0}
+do_test where7-2.727.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=93
+         OR (g='mlkjihg' AND f GLOB 'ghijk*')
+         OR a=83
+         OR b=828
+         OR b=454
+         OR ((a BETWEEN 89 AND 91) AND a!=90)
+         OR b=924
+         OR (g='lkjihgf' AND f GLOB 'opqrs*')
+         OR a=50
+         OR (d>=38.0 AND d<39.0 AND d NOT NULL)
+  }
+} {38 50 58 66 83 84 89 91 93 scan 0 sort 0}
+do_test where7-2.727.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=93
+         OR (g='mlkjihg' AND f GLOB 'ghijk*')
+         OR a=83
+         OR b=828
+         OR b=454
+         OR ((a BETWEEN 89 AND 91) AND a!=90)
+         OR b=924
+         OR (g='lkjihgf' AND f GLOB 'opqrs*')
+         OR a=50
+         OR (d>=38.0 AND d<39.0 AND d NOT NULL)
+  }
+} {38 50 58 66 83 84 89 91 93 scan 0 sort 0}
+do_test where7-2.728.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f='stuvwxyza'
+         OR a=44
+         OR c=2002
+  }
+} {4 5 6 18 44 70 96 scan 0 sort 0}
+do_test where7-2.728.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f='stuvwxyza'
+         OR a=44
+         OR c=2002
+  }
+} {4 5 6 18 44 70 96 scan 0 sort 0}
+do_test where7-2.729.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=55
+         OR a=65
+         OR (f GLOB '?pqrs*' AND f GLOB 'opqr*')
+  }
+} {14 40 55 65 66 92 scan 0 sort 0}
+do_test where7-2.729.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=55
+         OR a=65
+         OR (f GLOB '?pqrs*' AND f GLOB 'opqr*')
+  }
+} {14 40 55 65 66 92 scan 0 sort 0}
+do_test where7-2.730.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 72 AND 74) AND a!=73)
+         OR b=605
+         OR (d>=43.0 AND d<44.0 AND d NOT NULL)
+         OR (g='wvutsrq' AND f GLOB 'mnopq*')
+         OR ((a BETWEEN 72 AND 74) AND a!=73)
+         OR f='ijklmnopq'
+         OR ((a BETWEEN 86 AND 88) AND a!=87)
+         OR (d>=13.0 AND d<14.0 AND d NOT NULL)
+         OR c=9009
+         OR b=374
+  }
+} {8 12 13 25 26 27 34 43 55 60 72 74 86 88 scan 0 sort 0}
+do_test where7-2.730.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 72 AND 74) AND a!=73)
+         OR b=605
+         OR (d>=43.0 AND d<44.0 AND d NOT NULL)
+         OR (g='wvutsrq' AND f GLOB 'mnopq*')
+         OR ((a BETWEEN 72 AND 74) AND a!=73)
+         OR f='ijklmnopq'
+         OR ((a BETWEEN 86 AND 88) AND a!=87)
+         OR (d>=13.0 AND d<14.0 AND d NOT NULL)
+         OR c=9009
+         OR b=374
+  }
+} {8 12 13 25 26 27 34 43 55 60 72 74 86 88 scan 0 sort 0}
+do_test where7-2.731.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=476
+         OR (g='wvutsrq' AND f GLOB 'ijklm*')
+         OR b=982
+         OR a=43
+         OR b=355
+  }
+} {8 43 scan 0 sort 0}
+do_test where7-2.731.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=476
+         OR (g='wvutsrq' AND f GLOB 'ijklm*')
+         OR b=982
+         OR a=43
+         OR b=355
+  }
+} {8 43 scan 0 sort 0}
+do_test where7-2.732.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=85
+         OR b=718
+         OR (g='fedcbaz' AND f GLOB 'pqrst*')
+         OR (f GLOB '?cdef*' AND f GLOB 'bcde*')
+         OR (d>=25.0 AND d<26.0 AND d NOT NULL)
+  }
+} {1 25 27 53 79 85 93 scan 0 sort 0}
+do_test where7-2.732.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=85
+         OR b=718
+         OR (g='fedcbaz' AND f GLOB 'pqrst*')
+         OR (f GLOB '?cdef*' AND f GLOB 'bcde*')
+         OR (d>=25.0 AND d<26.0 AND d NOT NULL)
+  }
+} {1 25 27 53 79 85 93 scan 0 sort 0}
+do_test where7-2.733.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=73.0 AND d<74.0 AND d NOT NULL)
+         OR ((a BETWEEN 96 AND 98) AND a!=97)
+  }
+} {73 96 98 scan 0 sort 0}
+do_test where7-2.733.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=73.0 AND d<74.0 AND d NOT NULL)
+         OR ((a BETWEEN 96 AND 98) AND a!=97)
+  }
+} {73 96 98 scan 0 sort 0}
+do_test where7-2.734.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=176
+         OR (d>=25.0 AND d<26.0 AND d NOT NULL)
+         OR ((a BETWEEN 27 AND 29) AND a!=28)
+         OR b=619
+         OR b=597
+         OR b=198
+         OR a=27
+         OR b=91
+         OR a=77
+         OR (d>=80.0 AND d<81.0 AND d NOT NULL)
+  }
+} {16 18 25 27 29 77 80 scan 0 sort 0}
+do_test where7-2.734.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=176
+         OR (d>=25.0 AND d<26.0 AND d NOT NULL)
+         OR ((a BETWEEN 27 AND 29) AND a!=28)
+         OR b=619
+         OR b=597
+         OR b=198
+         OR a=27
+         OR b=91
+         OR a=77
+         OR (d>=80.0 AND d<81.0 AND d NOT NULL)
+  }
+} {16 18 25 27 29 77 80 scan 0 sort 0}
+do_test where7-2.735.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=41
+         OR b=528
+         OR c=3003
+         OR ((a BETWEEN 20 AND 22) AND a!=21)
+         OR b=22
+  }
+} {2 7 8 9 20 22 41 48 scan 0 sort 0}
+do_test where7-2.735.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=41
+         OR b=528
+         OR c=3003
+         OR ((a BETWEEN 20 AND 22) AND a!=21)
+         OR b=22
+  }
+} {2 7 8 9 20 22 41 48 scan 0 sort 0}
+do_test where7-2.736.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (f GLOB '?rstu*' AND f GLOB 'qrst*')
+         OR b=465
+         OR ((a BETWEEN 63 AND 65) AND a!=64)
+         OR a=37
+         OR b=1056
+         OR (g='srqponm' AND f GLOB 'defgh*')
+         OR (d>=4.0 AND d<5.0 AND d NOT NULL)
+         OR b=1023
+  }
+} {4 16 29 37 42 63 65 68 93 94 96 scan 0 sort 0}
+do_test where7-2.736.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (f GLOB '?rstu*' AND f GLOB 'qrst*')
+         OR b=465
+         OR ((a BETWEEN 63 AND 65) AND a!=64)
+         OR a=37
+         OR b=1056
+         OR (g='srqponm' AND f GLOB 'defgh*')
+         OR (d>=4.0 AND d<5.0 AND d NOT NULL)
+         OR b=1023
+  }
+} {4 16 29 37 42 63 65 68 93 94 96 scan 0 sort 0}
+do_test where7-2.737.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=76
+         OR a=8
+         OR (g='tsrqpon' AND f GLOB 'bcdef*')
+         OR b=495
+         OR b=663
+         OR a=98
+         OR b=748
+  }
+} {8 27 45 68 76 98 scan 0 sort 0}
+do_test where7-2.737.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=76
+         OR a=8
+         OR (g='tsrqpon' AND f GLOB 'bcdef*')
+         OR b=495
+         OR b=663
+         OR a=98
+         OR b=748
+  }
+} {8 27 45 68 76 98 scan 0 sort 0}
+do_test where7-2.738.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=1081
+         OR b=542
+         OR (g='mlkjihg' AND f GLOB 'jklmn*')
+         OR (d>=47.0 AND d<48.0 AND d NOT NULL)
+         OR b=828
+         OR (d>=67.0 AND d<68.0 AND d NOT NULL)
+         OR (d>=64.0 AND d<65.0 AND d NOT NULL)
+         OR a=18
+  }
+} {18 47 61 64 67 scan 0 sort 0}
+do_test where7-2.738.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=1081
+         OR b=542
+         OR (g='mlkjihg' AND f GLOB 'jklmn*')
+         OR (d>=47.0 AND d<48.0 AND d NOT NULL)
+         OR b=828
+         OR (d>=67.0 AND d<68.0 AND d NOT NULL)
+         OR (d>=64.0 AND d<65.0 AND d NOT NULL)
+         OR a=18
+  }
+} {18 47 61 64 67 scan 0 sort 0}
+do_test where7-2.739.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f='abcdefghi'
+         OR a=14
+         OR (d>=13.0 AND d<14.0 AND d NOT NULL)
+         OR c=27027
+         OR a=47
+  }
+} {13 14 26 47 52 78 79 80 81 scan 0 sort 0}
+do_test where7-2.739.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f='abcdefghi'
+         OR a=14
+         OR (d>=13.0 AND d<14.0 AND d NOT NULL)
+         OR c=27027
+         OR a=47
+  }
+} {13 14 26 47 52 78 79 80 81 scan 0 sort 0}
+do_test where7-2.740.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=31031
+         OR b=737
+         OR a=37
+         OR ((a BETWEEN 98 AND 100) AND a!=99)
+         OR (d>=94.0 AND d<95.0 AND d NOT NULL)
+         OR ((a BETWEEN 65 AND 67) AND a!=66)
+         OR a=91
+         OR b=77
+         OR (d>=94.0 AND d<95.0 AND d NOT NULL)
+  }
+} {7 37 65 67 91 92 93 94 98 100 scan 0 sort 0}
+do_test where7-2.740.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=31031
+         OR b=737
+         OR a=37
+         OR ((a BETWEEN 98 AND 100) AND a!=99)
+         OR (d>=94.0 AND d<95.0 AND d NOT NULL)
+         OR ((a BETWEEN 65 AND 67) AND a!=66)
+         OR a=91
+         OR b=77
+         OR (d>=94.0 AND d<95.0 AND d NOT NULL)
+  }
+} {7 37 65 67 91 92 93 94 98 100 scan 0 sort 0}
+do_test where7-2.741.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=17
+         OR b=484
+         OR c=3003
+         OR b=121
+         OR a=53
+  }
+} {7 8 9 11 17 44 53 scan 0 sort 0}
+do_test where7-2.741.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=17
+         OR b=484
+         OR c=3003
+         OR b=121
+         OR a=53
+  }
+} {7 8 9 11 17 44 53 scan 0 sort 0}
+do_test where7-2.742.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=880
+         OR b=696
+         OR (g='xwvutsr' AND f GLOB 'fghij*')
+         OR b=308
+         OR (g='lkjihgf' AND f GLOB 'nopqr*')
+         OR ((a BETWEEN 96 AND 98) AND a!=97)
+  }
+} {5 28 65 80 96 98 scan 0 sort 0}
+do_test where7-2.742.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=880
+         OR b=696
+         OR (g='xwvutsr' AND f GLOB 'fghij*')
+         OR b=308
+         OR (g='lkjihgf' AND f GLOB 'nopqr*')
+         OR ((a BETWEEN 96 AND 98) AND a!=97)
+  }
+} {5 28 65 80 96 98 scan 0 sort 0}
+do_test where7-2.743.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='tsrqpon' AND f GLOB 'zabcd*')
+         OR a=24
+         OR f IS NULL
+         OR (d>=77.0 AND d<78.0 AND d NOT NULL)
+         OR (d>=57.0 AND d<58.0 AND d NOT NULL)
+         OR c=12012
+         OR (d>=88.0 AND d<89.0 AND d NOT NULL)
+  }
+} {24 25 34 35 36 57 77 88 scan 0 sort 0}
+do_test where7-2.743.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='tsrqpon' AND f GLOB 'zabcd*')
+         OR a=24
+         OR f IS NULL
+         OR (d>=77.0 AND d<78.0 AND d NOT NULL)
+         OR (d>=57.0 AND d<58.0 AND d NOT NULL)
+         OR c=12012
+         OR (d>=88.0 AND d<89.0 AND d NOT NULL)
+  }
+} {24 25 34 35 36 57 77 88 scan 0 sort 0}
+do_test where7-2.744.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=94
+         OR (d>=74.0 AND d<75.0 AND d NOT NULL)
+         OR (g='hgfedcb' AND f GLOB 'hijkl*')
+         OR b=792
+         OR a=77
+         OR a=26
+         OR b=641
+         OR a=38
+  }
+} {26 38 72 74 77 85 94 scan 0 sort 0}
+do_test where7-2.744.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=94
+         OR (d>=74.0 AND d<75.0 AND d NOT NULL)
+         OR (g='hgfedcb' AND f GLOB 'hijkl*')
+         OR b=792
+         OR a=77
+         OR a=26
+         OR b=641
+         OR a=38
+  }
+} {26 38 72 74 77 85 94 scan 0 sort 0}
+do_test where7-2.745.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 51 AND 53) AND a!=52)
+         OR (d>=30.0 AND d<31.0 AND d NOT NULL)
+         OR b=14
+         OR ((a BETWEEN 89 AND 91) AND a!=90)
+         OR ((a BETWEEN 15 AND 17) AND a!=16)
+         OR (d>=27.0 AND d<28.0 AND d NOT NULL)
+         OR b=121
+         OR (d>=63.0 AND d<64.0 AND d NOT NULL)
+         OR (d>=86.0 AND d<87.0 AND d NOT NULL)
+  }
+} {11 15 17 27 30 51 53 63 86 89 91 scan 0 sort 0}
+do_test where7-2.745.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 51 AND 53) AND a!=52)
+         OR (d>=30.0 AND d<31.0 AND d NOT NULL)
+         OR b=14
+         OR ((a BETWEEN 89 AND 91) AND a!=90)
+         OR ((a BETWEEN 15 AND 17) AND a!=16)
+         OR (d>=27.0 AND d<28.0 AND d NOT NULL)
+         OR b=121
+         OR (d>=63.0 AND d<64.0 AND d NOT NULL)
+         OR (d>=86.0 AND d<87.0 AND d NOT NULL)
+  }
+} {11 15 17 27 30 51 53 63 86 89 91 scan 0 sort 0}
+do_test where7-2.746.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=517
+         OR ((a BETWEEN 69 AND 71) AND a!=70)
+         OR f='opqrstuvw'
+  }
+} {14 40 47 66 69 71 92 scan 0 sort 0}
+do_test where7-2.746.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=517
+         OR ((a BETWEEN 69 AND 71) AND a!=70)
+         OR f='opqrstuvw'
+  }
+} {14 40 47 66 69 71 92 scan 0 sort 0}
+do_test where7-2.747.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=84.0 AND d<85.0 AND d NOT NULL)
+         OR ((a BETWEEN 32 AND 34) AND a!=33)
+         OR b=267
+         OR c=19019
+         OR a=42
+         OR b=938
+         OR (f GLOB '?stuv*' AND f GLOB 'rstu*')
+         OR (d>=21.0 AND d<22.0 AND d NOT NULL)
+         OR (d>=1.0 AND d<2.0 AND d NOT NULL)
+         OR ((a BETWEEN 22 AND 24) AND a!=23)
+         OR (f GLOB '?klmn*' AND f GLOB 'jklm*')
+  }
+} {1 9 17 21 22 24 32 34 35 42 43 55 56 57 61 69 84 87 95 scan 0 sort 0}
+do_test where7-2.747.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=84.0 AND d<85.0 AND d NOT NULL)
+         OR ((a BETWEEN 32 AND 34) AND a!=33)
+         OR b=267
+         OR c=19019
+         OR a=42
+         OR b=938
+         OR (f GLOB '?stuv*' AND f GLOB 'rstu*')
+         OR (d>=21.0 AND d<22.0 AND d NOT NULL)
+         OR (d>=1.0 AND d<2.0 AND d NOT NULL)
+         OR ((a BETWEEN 22 AND 24) AND a!=23)
+         OR (f GLOB '?klmn*' AND f GLOB 'jklm*')
+  }
+} {1 9 17 21 22 24 32 34 35 42 43 55 56 57 61 69 84 87 95 scan 0 sort 0}
+do_test where7-2.748.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=179
+         OR a=50
+         OR (g='srqponm' AND f GLOB 'defgh*')
+  }
+} {29 50 scan 0 sort 0}
+do_test where7-2.748.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=179
+         OR a=50
+         OR (g='srqponm' AND f GLOB 'defgh*')
+  }
+} {29 50 scan 0 sort 0}
+do_test where7-2.749.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='vutsrqp' AND f GLOB 'rstuv*')
+         OR f='xyzabcdef'
+         OR ((a BETWEEN 49 AND 51) AND a!=50)
+         OR b=575
+         OR b=385
+         OR (g='utsrqpo' AND f GLOB 'stuvw*')
+         OR ((a BETWEEN 63 AND 65) AND a!=64)
+         OR a=46
+         OR b=220
+         OR a=63
+  }
+} {17 18 20 23 35 46 49 51 63 65 75 scan 0 sort 0}
+do_test where7-2.749.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='vutsrqp' AND f GLOB 'rstuv*')
+         OR f='xyzabcdef'
+         OR ((a BETWEEN 49 AND 51) AND a!=50)
+         OR b=575
+         OR b=385
+         OR (g='utsrqpo' AND f GLOB 'stuvw*')
+         OR ((a BETWEEN 63 AND 65) AND a!=64)
+         OR a=46
+         OR b=220
+         OR a=63
+  }
+} {17 18 20 23 35 46 49 51 63 65 75 scan 0 sort 0}
+do_test where7-2.750.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=1056
+         OR ((a BETWEEN 91 AND 93) AND a!=92)
+         OR b=1078
+         OR (d>=80.0 AND d<81.0 AND d NOT NULL)
+         OR c=31031
+         OR b=869
+         OR (g='jihgfed' AND f GLOB 'zabcd*')
+         OR b=245
+         OR a=92
+         OR (d>=66.0 AND d<67.0 AND d NOT NULL)
+         OR b=880
+  }
+} {66 77 79 80 91 92 93 96 98 scan 0 sort 0}
+do_test where7-2.750.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=1056
+         OR ((a BETWEEN 91 AND 93) AND a!=92)
+         OR b=1078
+         OR (d>=80.0 AND d<81.0 AND d NOT NULL)
+         OR c=31031
+         OR b=869
+         OR (g='jihgfed' AND f GLOB 'zabcd*')
+         OR b=245
+         OR a=92
+         OR (d>=66.0 AND d<67.0 AND d NOT NULL)
+         OR b=880
+  }
+} {66 77 79 80 91 92 93 96 98 scan 0 sort 0}
+do_test where7-2.751.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=1078
+         OR c=28028
+         OR (d>=40.0 AND d<41.0 AND d NOT NULL)
+         OR (d>=38.0 AND d<39.0 AND d NOT NULL)
+         OR (f GLOB '?rstu*' AND f GLOB 'qrst*')
+         OR (g='mlkjihg' AND f GLOB 'jklmn*')
+         OR ((a BETWEEN 17 AND 19) AND a!=18)
+         OR c=9009
+         OR a=17
+         OR (d>=39.0 AND d<40.0 AND d NOT NULL)
+  }
+} {16 17 19 25 26 27 38 39 40 42 61 68 82 83 84 94 98 scan 0 sort 0}
+do_test where7-2.751.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=1078
+         OR c=28028
+         OR (d>=40.0 AND d<41.0 AND d NOT NULL)
+         OR (d>=38.0 AND d<39.0 AND d NOT NULL)
+         OR (f GLOB '?rstu*' AND f GLOB 'qrst*')
+         OR (g='mlkjihg' AND f GLOB 'jklmn*')
+         OR ((a BETWEEN 17 AND 19) AND a!=18)
+         OR c=9009
+         OR a=17
+         OR (d>=39.0 AND d<40.0 AND d NOT NULL)
+  }
+} {16 17 19 25 26 27 38 39 40 42 61 68 82 83 84 94 98 scan 0 sort 0}
+do_test where7-2.752.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=57.0 AND d<58.0 AND d NOT NULL)
+         OR b=762
+         OR (g='mlkjihg' AND f GLOB 'ghijk*')
+         OR f='tuvwxyzab'
+         OR (d>=44.0 AND d<45.0 AND d NOT NULL)
+         OR ((a BETWEEN 31 AND 33) AND a!=32)
+         OR b=1034
+         OR (d>=14.0 AND d<15.0 AND d NOT NULL)
+  }
+} {14 19 31 33 44 45 57 58 71 94 97 scan 0 sort 0}
+do_test where7-2.752.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=57.0 AND d<58.0 AND d NOT NULL)
+         OR b=762
+         OR (g='mlkjihg' AND f GLOB 'ghijk*')
+         OR f='tuvwxyzab'
+         OR (d>=44.0 AND d<45.0 AND d NOT NULL)
+         OR ((a BETWEEN 31 AND 33) AND a!=32)
+         OR b=1034
+         OR (d>=14.0 AND d<15.0 AND d NOT NULL)
+  }
+} {14 19 31 33 44 45 57 58 71 94 97 scan 0 sort 0}
+do_test where7-2.753.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=47
+         OR b=187
+         OR a=56
+         OR ((a BETWEEN 30 AND 32) AND a!=31)
+         OR ((a BETWEEN 68 AND 70) AND a!=69)
+         OR ((a BETWEEN 89 AND 91) AND a!=90)
+  }
+} {17 30 32 56 68 70 89 91 scan 0 sort 0}
+do_test where7-2.753.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=47
+         OR b=187
+         OR a=56
+         OR ((a BETWEEN 30 AND 32) AND a!=31)
+         OR ((a BETWEEN 68 AND 70) AND a!=69)
+         OR ((a BETWEEN 89 AND 91) AND a!=90)
+  }
+} {17 30 32 56 68 70 89 91 scan 0 sort 0}
+do_test where7-2.754.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=11011
+         OR a=14
+         OR c=16016
+         OR (d>=21.0 AND d<22.0 AND d NOT NULL)
+         OR (g='srqponm' AND f GLOB 'efghi*')
+         OR f='jklmnopqr'
+         OR (d>=25.0 AND d<26.0 AND d NOT NULL)
+         OR (d>=96.0 AND d<97.0 AND d NOT NULL)
+         OR b=916
+  }
+} {9 14 21 25 30 31 32 33 35 46 47 48 61 87 96 scan 0 sort 0}
+do_test where7-2.754.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=11011
+         OR a=14
+         OR c=16016
+         OR (d>=21.0 AND d<22.0 AND d NOT NULL)
+         OR (g='srqponm' AND f GLOB 'efghi*')
+         OR f='jklmnopqr'
+         OR (d>=25.0 AND d<26.0 AND d NOT NULL)
+         OR (d>=96.0 AND d<97.0 AND d NOT NULL)
+         OR b=916
+  }
+} {9 14 21 25 30 31 32 33 35 46 47 48 61 87 96 scan 0 sort 0}
+do_test where7-2.755.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=949
+         OR (g='srqponm' AND f GLOB 'cdefg*')
+         OR (g='vutsrqp' AND f GLOB 'rstuv*')
+         OR c<=10
+         OR a=14
+         OR b=608
+         OR (g='edcbazy' AND f GLOB 'uvwxy*')
+         OR (d>=66.0 AND d<67.0 AND d NOT NULL)
+         OR b=121
+         OR b=333
+         OR ((a BETWEEN 93 AND 95) AND a!=94)
+  }
+} {11 14 17 28 66 93 95 98 scan 0 sort 0}
+do_test where7-2.755.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=949
+         OR (g='srqponm' AND f GLOB 'cdefg*')
+         OR (g='vutsrqp' AND f GLOB 'rstuv*')
+         OR c<=10
+         OR a=14
+         OR b=608
+         OR (g='edcbazy' AND f GLOB 'uvwxy*')
+         OR (d>=66.0 AND d<67.0 AND d NOT NULL)
+         OR b=121
+         OR b=333
+         OR ((a BETWEEN 93 AND 95) AND a!=94)
+  }
+} {11 14 17 28 66 93 95 98 scan 0 sort 0}
+do_test where7-2.756.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='kjihgfe' AND f GLOB 'rstuv*')
+         OR b=355
+         OR b=627
+         OR b=1001
+         OR b=1026
+         OR ((a BETWEEN 58 AND 60) AND a!=59)
+  }
+} {57 58 60 69 91 scan 0 sort 0}
+do_test where7-2.756.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='kjihgfe' AND f GLOB 'rstuv*')
+         OR b=355
+         OR b=627
+         OR b=1001
+         OR b=1026
+         OR ((a BETWEEN 58 AND 60) AND a!=59)
+  }
+} {57 58 60 69 91 scan 0 sort 0}
+do_test where7-2.757.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='xwvutsr' AND f GLOB 'efghi*')
+         OR (d>=79.0 AND d<80.0 AND d NOT NULL)
+  }
+} {4 79 scan 0 sort 0}
+do_test where7-2.757.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='xwvutsr' AND f GLOB 'efghi*')
+         OR (d>=79.0 AND d<80.0 AND d NOT NULL)
+  }
+} {4 79 scan 0 sort 0}
+do_test where7-2.758.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=685
+         OR a=14
+         OR b=990
+         OR (g='tsrqpon' AND f GLOB 'abcde*')
+         OR f='efghijklm'
+         OR c=1001
+         OR b=784
+         OR (g='srqponm' AND f GLOB 'ghijk*')
+         OR (d>=69.0 AND d<70.0 AND d NOT NULL)
+  }
+} {1 2 3 4 14 26 30 32 56 69 82 90 scan 0 sort 0}
+do_test where7-2.758.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=685
+         OR a=14
+         OR b=990
+         OR (g='tsrqpon' AND f GLOB 'abcde*')
+         OR f='efghijklm'
+         OR c=1001
+         OR b=784
+         OR (g='srqponm' AND f GLOB 'ghijk*')
+         OR (d>=69.0 AND d<70.0 AND d NOT NULL)
+  }
+} {1 2 3 4 14 26 30 32 56 69 82 90 scan 0 sort 0}
+do_test where7-2.759.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=54
+         OR (g='qponmlk' AND f GLOB 'nopqr*')
+         OR c=26026
+         OR ((a BETWEEN 97 AND 99) AND a!=98)
+  }
+} {39 54 76 77 78 97 99 scan 0 sort 0}
+do_test where7-2.759.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=54
+         OR (g='qponmlk' AND f GLOB 'nopqr*')
+         OR c=26026
+         OR ((a BETWEEN 97 AND 99) AND a!=98)
+  }
+} {39 54 76 77 78 97 99 scan 0 sort 0}
+do_test where7-2.760.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='hgfedcb' AND f GLOB 'ghijk*')
+         OR c=24024
+         OR a=98
+         OR (g='utsrqpo' AND f GLOB 'vwxyz*')
+         OR a=5
+         OR ((a BETWEEN 31 AND 33) AND a!=32)
+         OR (g='rqponml' AND f GLOB 'klmno*')
+         OR f='pqrstuvwx'
+         OR f='bcdefghij'
+         OR b=1001
+         OR ((a BETWEEN 77 AND 79) AND a!=78)
+  }
+} {1 5 15 21 27 31 33 36 41 53 67 70 71 72 77 79 84 91 93 98 scan 0 sort 0}
+do_test where7-2.760.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='hgfedcb' AND f GLOB 'ghijk*')
+         OR c=24024
+         OR a=98
+         OR (g='utsrqpo' AND f GLOB 'vwxyz*')
+         OR a=5
+         OR ((a BETWEEN 31 AND 33) AND a!=32)
+         OR (g='rqponml' AND f GLOB 'klmno*')
+         OR f='pqrstuvwx'
+         OR f='bcdefghij'
+         OR b=1001
+         OR ((a BETWEEN 77 AND 79) AND a!=78)
+  }
+} {1 5 15 21 27 31 33 36 41 53 67 70 71 72 77 79 84 91 93 98 scan 0 sort 0}
+do_test where7-2.761.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=781
+         OR (f GLOB '?pqrs*' AND f GLOB 'opqr*')
+         OR (d>=56.0 AND d<57.0 AND d NOT NULL)
+         OR (d>=99.0 AND d<100.0 AND d NOT NULL)
+         OR (g='yxwvuts' AND f GLOB 'bcdef*')
+         OR (g='nmlkjih' AND f GLOB 'cdefg*')
+         OR f='lmnopqrst'
+         OR a=39
+         OR a=100
+         OR ((a BETWEEN 56 AND 58) AND a!=57)
+  }
+} {1 11 14 37 39 40 54 56 58 63 66 71 89 92 99 100 scan 0 sort 0}
+do_test where7-2.761.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=781
+         OR (f GLOB '?pqrs*' AND f GLOB 'opqr*')
+         OR (d>=56.0 AND d<57.0 AND d NOT NULL)
+         OR (d>=99.0 AND d<100.0 AND d NOT NULL)
+         OR (g='yxwvuts' AND f GLOB 'bcdef*')
+         OR (g='nmlkjih' AND f GLOB 'cdefg*')
+         OR f='lmnopqrst'
+         OR a=39
+         OR a=100
+         OR ((a BETWEEN 56 AND 58) AND a!=57)
+  }
+} {1 11 14 37 39 40 54 56 58 63 66 71 89 92 99 100 scan 0 sort 0}
+do_test where7-2.762.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=4004
+         OR b=718
+         OR (g='qponmlk' AND f GLOB 'opqrs*')
+         OR a=50
+         OR (d>=11.0 AND d<12.0 AND d NOT NULL)
+         OR b=363
+         OR (g='rqponml' AND f GLOB 'ijklm*')
+         OR b=1023
+  }
+} {10 11 12 33 34 40 50 93 scan 0 sort 0}
+do_test where7-2.762.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=4004
+         OR b=718
+         OR (g='qponmlk' AND f GLOB 'opqrs*')
+         OR a=50
+         OR (d>=11.0 AND d<12.0 AND d NOT NULL)
+         OR b=363
+         OR (g='rqponml' AND f GLOB 'ijklm*')
+         OR b=1023
+  }
+} {10 11 12 33 34 40 50 93 scan 0 sort 0}
+do_test where7-2.763.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=1081
+         OR (d>=55.0 AND d<56.0 AND d NOT NULL)
+         OR b=473
+         OR ((a BETWEEN 43 AND 45) AND a!=44)
+         OR b=586
+         OR (g='tsrqpon' AND f GLOB 'abcde*')
+         OR (f GLOB '?vwxy*' AND f GLOB 'uvwx*')
+  }
+} {20 26 43 45 46 55 72 98 scan 0 sort 0}
+do_test where7-2.763.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=1081
+         OR (d>=55.0 AND d<56.0 AND d NOT NULL)
+         OR b=473
+         OR ((a BETWEEN 43 AND 45) AND a!=44)
+         OR b=586
+         OR (g='tsrqpon' AND f GLOB 'abcde*')
+         OR (f GLOB '?vwxy*' AND f GLOB 'uvwx*')
+  }
+} {20 26 43 45 46 55 72 98 scan 0 sort 0}
+do_test where7-2.764.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (f GLOB '?ijkl*' AND f GLOB 'hijk*')
+         OR (d>=58.0 AND d<59.0 AND d NOT NULL)
+         OR (d>=13.0 AND d<14.0 AND d NOT NULL)
+  }
+} {7 13 33 58 59 85 scan 0 sort 0}
+do_test where7-2.764.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (f GLOB '?ijkl*' AND f GLOB 'hijk*')
+         OR (d>=58.0 AND d<59.0 AND d NOT NULL)
+         OR (d>=13.0 AND d<14.0 AND d NOT NULL)
+  }
+} {7 13 33 58 59 85 scan 0 sort 0}
+do_test where7-2.765.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='hgfedcb' AND f GLOB 'hijkl*')
+         OR ((a BETWEEN 76 AND 78) AND a!=77)
+         OR a=47
+         OR (g='kjihgfe' AND f GLOB 'qrstu*')
+         OR (g='lkjihgf' AND f GLOB 'lmnop*')
+         OR (d>=84.0 AND d<85.0 AND d NOT NULL)
+         OR f='lmnopqrst'
+  }
+} {11 37 47 63 68 76 78 84 85 89 scan 0 sort 0}
+do_test where7-2.765.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='hgfedcb' AND f GLOB 'hijkl*')
+         OR ((a BETWEEN 76 AND 78) AND a!=77)
+         OR a=47
+         OR (g='kjihgfe' AND f GLOB 'qrstu*')
+         OR (g='lkjihgf' AND f GLOB 'lmnop*')
+         OR (d>=84.0 AND d<85.0 AND d NOT NULL)
+         OR f='lmnopqrst'
+  }
+} {11 37 47 63 68 76 78 84 85 89 scan 0 sort 0}
+do_test where7-2.766.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c>=34035
+         OR a=29
+         OR ((a BETWEEN 19 AND 21) AND a!=20)
+         OR (f GLOB '?wxyz*' AND f GLOB 'vwxy*')
+         OR f='abcdefghi'
+         OR b=993
+         OR ((a BETWEEN 52 AND 54) AND a!=53)
+         OR ((a BETWEEN 45 AND 47) AND a!=46)
+  }
+} {19 21 26 29 45 47 52 54 73 78 99 scan 0 sort 0}
+do_test where7-2.766.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c>=34035
+         OR a=29
+         OR ((a BETWEEN 19 AND 21) AND a!=20)
+         OR (f GLOB '?wxyz*' AND f GLOB 'vwxy*')
+         OR f='abcdefghi'
+         OR b=993
+         OR ((a BETWEEN 52 AND 54) AND a!=53)
+         OR ((a BETWEEN 45 AND 47) AND a!=46)
+  }
+} {19 21 26 29 45 47 52 54 73 78 99 scan 0 sort 0}
+do_test where7-2.767.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=63.0 AND d<64.0 AND d NOT NULL)
+         OR (d>=16.0 AND d<17.0 AND d NOT NULL)
+         OR b=696
+         OR b=154
+         OR (d>=24.0 AND d<25.0 AND d NOT NULL)
+         OR a=22
+         OR (d>=47.0 AND d<48.0 AND d NOT NULL)
+         OR a=52
+         OR a=21
+         OR (d>=70.0 AND d<71.0 AND d NOT NULL)
+  }
+} {14 16 21 22 24 47 52 63 70 scan 0 sort 0}
+do_test where7-2.767.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=63.0 AND d<64.0 AND d NOT NULL)
+         OR (d>=16.0 AND d<17.0 AND d NOT NULL)
+         OR b=696
+         OR b=154
+         OR (d>=24.0 AND d<25.0 AND d NOT NULL)
+         OR a=22
+         OR (d>=47.0 AND d<48.0 AND d NOT NULL)
+         OR a=52
+         OR a=21
+         OR (d>=70.0 AND d<71.0 AND d NOT NULL)
+  }
+} {14 16 21 22 24 47 52 63 70 scan 0 sort 0}
+do_test where7-2.768.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=693
+         OR b=201
+         OR ((a BETWEEN 36 AND 38) AND a!=37)
+         OR b=520
+         OR ((a BETWEEN 23 AND 25) AND a!=24)
+         OR b=407
+         OR (d>=37.0 AND d<38.0 AND d NOT NULL)
+         OR c>=34035
+         OR b=135
+  }
+} {23 25 36 37 38 63 scan 0 sort 0}
+do_test where7-2.768.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=693
+         OR b=201
+         OR ((a BETWEEN 36 AND 38) AND a!=37)
+         OR b=520
+         OR ((a BETWEEN 23 AND 25) AND a!=24)
+         OR b=407
+         OR (d>=37.0 AND d<38.0 AND d NOT NULL)
+         OR c>=34035
+         OR b=135
+  }
+} {23 25 36 37 38 63 scan 0 sort 0}
+do_test where7-2.769.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=43.0 AND d<44.0 AND d NOT NULL)
+         OR b=707
+         OR b=14
+         OR b=1089
+         OR b=352
+  }
+} {32 43 99 scan 0 sort 0}
+do_test where7-2.769.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=43.0 AND d<44.0 AND d NOT NULL)
+         OR b=707
+         OR b=14
+         OR b=1089
+         OR b=352
+  }
+} {32 43 99 scan 0 sort 0}
+do_test where7-2.770.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=278
+         OR b=278
+         OR b=825
+         OR f='rstuvwxyz'
+         OR b=938
+         OR ((a BETWEEN 17 AND 19) AND a!=18)
+         OR ((a BETWEEN 43 AND 45) AND a!=44)
+  }
+} {17 19 43 45 69 75 95 scan 0 sort 0}
+do_test where7-2.770.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=278
+         OR b=278
+         OR b=825
+         OR f='rstuvwxyz'
+         OR b=938
+         OR ((a BETWEEN 17 AND 19) AND a!=18)
+         OR ((a BETWEEN 43 AND 45) AND a!=44)
+  }
+} {17 19 43 45 69 75 95 scan 0 sort 0}
+do_test where7-2.771.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 32 AND 34) AND a!=33)
+         OR b=1045
+         OR c=27027
+         OR (f GLOB '?mnop*' AND f GLOB 'lmno*')
+  }
+} {11 32 34 37 63 79 80 81 89 95 scan 0 sort 0}
+do_test where7-2.771.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 32 AND 34) AND a!=33)
+         OR b=1045
+         OR c=27027
+         OR (f GLOB '?mnop*' AND f GLOB 'lmno*')
+  }
+} {11 32 34 37 63 79 80 81 89 95 scan 0 sort 0}
+do_test where7-2.772.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=87
+         OR (d>=47.0 AND d<48.0 AND d NOT NULL)
+         OR b=487
+         OR (g='gfedcba' AND f GLOB 'mnopq*')
+  }
+} {47 87 90 scan 0 sort 0}
+do_test where7-2.772.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=87
+         OR (d>=47.0 AND d<48.0 AND d NOT NULL)
+         OR b=487
+         OR (g='gfedcba' AND f GLOB 'mnopq*')
+  }
+} {47 87 90 scan 0 sort 0}
+do_test where7-2.773.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 30 AND 32) AND a!=31)
+         OR b=69
+         OR b=608
+         OR b=814
+         OR a=67
+         OR (d>=61.0 AND d<62.0 AND d NOT NULL)
+         OR b=1059
+         OR (d>=58.0 AND d<59.0 AND d NOT NULL)
+         OR a=18
+         OR b=407
+         OR ((a BETWEEN 10 AND 12) AND a!=11)
+  }
+} {10 12 18 30 32 37 58 61 67 74 scan 0 sort 0}
+do_test where7-2.773.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 30 AND 32) AND a!=31)
+         OR b=69
+         OR b=608
+         OR b=814
+         OR a=67
+         OR (d>=61.0 AND d<62.0 AND d NOT NULL)
+         OR b=1059
+         OR (d>=58.0 AND d<59.0 AND d NOT NULL)
+         OR a=18
+         OR b=407
+         OR ((a BETWEEN 10 AND 12) AND a!=11)
+  }
+} {10 12 18 30 32 37 58 61 67 74 scan 0 sort 0}
+do_test where7-2.774.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=223
+         OR b=80
+         OR ((a BETWEEN 97 AND 99) AND a!=98)
+         OR ((a BETWEEN 74 AND 76) AND a!=75)
+  }
+} {74 76 97 99 scan 0 sort 0}
+do_test where7-2.774.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=223
+         OR b=80
+         OR ((a BETWEEN 97 AND 99) AND a!=98)
+         OR ((a BETWEEN 74 AND 76) AND a!=75)
+  }
+} {74 76 97 99 scan 0 sort 0}
+do_test where7-2.775.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=220
+         OR (g='nmlkjih' AND f GLOB 'cdefg*')
+         OR b=363
+         OR (d>=66.0 AND d<67.0 AND d NOT NULL)
+         OR (g='nmlkjih' AND f GLOB 'defgh*')
+         OR (d>=52.0 AND d<53.0 AND d NOT NULL)
+         OR ((a BETWEEN 10 AND 12) AND a!=11)
+  }
+} {10 12 20 33 52 54 55 66 scan 0 sort 0}
+do_test where7-2.775.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=220
+         OR (g='nmlkjih' AND f GLOB 'cdefg*')
+         OR b=363
+         OR (d>=66.0 AND d<67.0 AND d NOT NULL)
+         OR (g='nmlkjih' AND f GLOB 'defgh*')
+         OR (d>=52.0 AND d<53.0 AND d NOT NULL)
+         OR ((a BETWEEN 10 AND 12) AND a!=11)
+  }
+} {10 12 20 33 52 54 55 66 scan 0 sort 0}
+do_test where7-2.776.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=498
+         OR (d>=5.0 AND d<6.0 AND d NOT NULL)
+         OR b=880
+         OR ((a BETWEEN 60 AND 62) AND a!=61)
+         OR b=828
+         OR (d>=15.0 AND d<16.0 AND d NOT NULL)
+         OR b=113
+  }
+} {5 15 60 62 80 scan 0 sort 0}
+do_test where7-2.776.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=498
+         OR (d>=5.0 AND d<6.0 AND d NOT NULL)
+         OR b=880
+         OR ((a BETWEEN 60 AND 62) AND a!=61)
+         OR b=828
+         OR (d>=15.0 AND d<16.0 AND d NOT NULL)
+         OR b=113
+  }
+} {5 15 60 62 80 scan 0 sort 0}
+do_test where7-2.777.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=1059
+         OR (d>=20.0 AND d<21.0 AND d NOT NULL)
+         OR b=960
+         OR (f GLOB '?rstu*' AND f GLOB 'qrst*')
+         OR (g='wvutsrq' AND f GLOB 'mnopq*')
+         OR b=894
+         OR c=2002
+  }
+} {4 5 6 12 16 20 42 68 94 scan 0 sort 0}
+do_test where7-2.777.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=1059
+         OR (d>=20.0 AND d<21.0 AND d NOT NULL)
+         OR b=960
+         OR (f GLOB '?rstu*' AND f GLOB 'qrst*')
+         OR (g='wvutsrq' AND f GLOB 'mnopq*')
+         OR b=894
+         OR c=2002
+  }
+} {4 5 6 12 16 20 42 68 94 scan 0 sort 0}
+do_test where7-2.778.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=14
+         OR (g='hgfedcb' AND f GLOB 'hijkl*')
+  }
+} {85 scan 0 sort 0}
+do_test where7-2.778.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=14
+         OR (g='hgfedcb' AND f GLOB 'hijkl*')
+  }
+} {85 scan 0 sort 0}
+do_test where7-2.779.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=806
+         OR (g='rqponml' AND f GLOB 'hijkl*')
+         OR b=795
+         OR ((a BETWEEN 99 AND 101) AND a!=100)
+         OR ((a BETWEEN 21 AND 23) AND a!=22)
+         OR ((a BETWEEN 86 AND 88) AND a!=87)
+         OR c=23023
+         OR (d>=99.0 AND d<100.0 AND d NOT NULL)
+  }
+} {21 23 33 67 68 69 86 88 99 scan 0 sort 0}
+do_test where7-2.779.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=806
+         OR (g='rqponml' AND f GLOB 'hijkl*')
+         OR b=795
+         OR ((a BETWEEN 99 AND 101) AND a!=100)
+         OR ((a BETWEEN 21 AND 23) AND a!=22)
+         OR ((a BETWEEN 86 AND 88) AND a!=87)
+         OR c=23023
+         OR (d>=99.0 AND d<100.0 AND d NOT NULL)
+  }
+} {21 23 33 67 68 69 86 88 99 scan 0 sort 0}
+do_test where7-2.780.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=726
+         OR (f GLOB '?qrst*' AND f GLOB 'pqrs*')
+         OR ((a BETWEEN 8 AND 10) AND a!=9)
+         OR f='abcdefghi'
+         OR (d>=92.0 AND d<93.0 AND d NOT NULL)
+         OR b=869
+  }
+} {8 10 15 26 41 52 66 67 78 79 92 93 scan 0 sort 0}
+do_test where7-2.780.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=726
+         OR (f GLOB '?qrst*' AND f GLOB 'pqrs*')
+         OR ((a BETWEEN 8 AND 10) AND a!=9)
+         OR f='abcdefghi'
+         OR (d>=92.0 AND d<93.0 AND d NOT NULL)
+         OR b=869
+  }
+} {8 10 15 26 41 52 66 67 78 79 92 93 scan 0 sort 0}
+do_test where7-2.781.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=59
+         OR ((a BETWEEN 5 AND 7) AND a!=6)
+         OR b=1081
+         OR (g='fedcbaz' AND f GLOB 'stuvw*')
+  }
+} {5 7 59 96 scan 0 sort 0}
+do_test where7-2.781.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=59
+         OR ((a BETWEEN 5 AND 7) AND a!=6)
+         OR b=1081
+         OR (g='fedcbaz' AND f GLOB 'stuvw*')
+  }
+} {5 7 59 96 scan 0 sort 0}
+do_test where7-2.782.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='qponmlk' AND f GLOB 'nopqr*')
+         OR b=1037
+         OR b=132
+         OR c=1001
+         OR (d>=20.0 AND d<21.0 AND d NOT NULL)
+         OR (d>=18.0 AND d<19.0 AND d NOT NULL)
+         OR (g='gfedcba' AND f GLOB 'nopqr*')
+         OR (d>=58.0 AND d<59.0 AND d NOT NULL)
+         OR (g='kjihgfe' AND f GLOB 'qrstu*')
+         OR a=32
+  }
+} {1 2 3 12 18 20 32 39 58 68 91 scan 0 sort 0}
+do_test where7-2.782.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='qponmlk' AND f GLOB 'nopqr*')
+         OR b=1037
+         OR b=132
+         OR c=1001
+         OR (d>=20.0 AND d<21.0 AND d NOT NULL)
+         OR (d>=18.0 AND d<19.0 AND d NOT NULL)
+         OR (g='gfedcba' AND f GLOB 'nopqr*')
+         OR (d>=58.0 AND d<59.0 AND d NOT NULL)
+         OR (g='kjihgfe' AND f GLOB 'qrstu*')
+         OR a=32
+  }
+} {1 2 3 12 18 20 32 39 58 68 91 scan 0 sort 0}
+do_test where7-2.783.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=24
+         OR b=927
+         OR (d>=52.0 AND d<53.0 AND d NOT NULL)
+         OR a=7
+         OR b=462
+         OR b=608
+         OR b=781
+         OR b=253
+         OR c=25025
+         OR b=132
+  }
+} {7 12 23 24 42 52 71 73 74 75 scan 0 sort 0}
+do_test where7-2.783.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=24
+         OR b=927
+         OR (d>=52.0 AND d<53.0 AND d NOT NULL)
+         OR a=7
+         OR b=462
+         OR b=608
+         OR b=781
+         OR b=253
+         OR c=25025
+         OR b=132
+  }
+} {7 12 23 24 42 52 71 73 74 75 scan 0 sort 0}
+do_test where7-2.784.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='mlkjihg' AND f GLOB 'jklmn*')
+         OR b=1001
+         OR ((a BETWEEN 23 AND 25) AND a!=24)
+         OR a=83
+  }
+} {23 25 61 83 91 scan 0 sort 0}
+do_test where7-2.784.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='mlkjihg' AND f GLOB 'jklmn*')
+         OR b=1001
+         OR ((a BETWEEN 23 AND 25) AND a!=24)
+         OR a=83
+  }
+} {23 25 61 83 91 scan 0 sort 0}
+do_test where7-2.785.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=60.0 AND d<61.0 AND d NOT NULL)
+         OR b=36
+         OR (f GLOB '?efgh*' AND f GLOB 'defg*')
+         OR (g='ihgfedc' AND f GLOB 'cdefg*')
+         OR ((a BETWEEN 46 AND 48) AND a!=47)
+         OR ((a BETWEEN 31 AND 33) AND a!=32)
+         OR (d>=91.0 AND d<92.0 AND d NOT NULL)
+         OR (g='ihgfedc' AND f GLOB 'efghi*')
+         OR (g='jihgfed' AND f GLOB 'vwxyz*')
+         OR (d>=77.0 AND d<78.0 AND d NOT NULL)
+         OR ((a BETWEEN 26 AND 28) AND a!=27)
+  }
+} {3 26 28 29 31 33 46 48 55 60 73 77 80 81 82 91 scan 0 sort 0}
+do_test where7-2.785.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=60.0 AND d<61.0 AND d NOT NULL)
+         OR b=36
+         OR (f GLOB '?efgh*' AND f GLOB 'defg*')
+         OR (g='ihgfedc' AND f GLOB 'cdefg*')
+         OR ((a BETWEEN 46 AND 48) AND a!=47)
+         OR ((a BETWEEN 31 AND 33) AND a!=32)
+         OR (d>=91.0 AND d<92.0 AND d NOT NULL)
+         OR (g='ihgfedc' AND f GLOB 'efghi*')
+         OR (g='jihgfed' AND f GLOB 'vwxyz*')
+         OR (d>=77.0 AND d<78.0 AND d NOT NULL)
+         OR ((a BETWEEN 26 AND 28) AND a!=27)
+  }
+} {3 26 28 29 31 33 46 48 55 60 73 77 80 81 82 91 scan 0 sort 0}
+do_test where7-2.786.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=69
+         OR (f GLOB '?defg*' AND f GLOB 'cdef*')
+         OR ((a BETWEEN 58 AND 60) AND a!=59)
+         OR a=98
+         OR b=300
+         OR a=41
+         OR ((a BETWEEN 37 AND 39) AND a!=38)
+         OR (d>=1.0 AND d<2.0 AND d NOT NULL)
+         OR a=33
+         OR ((a BETWEEN 10 AND 12) AND a!=11)
+  }
+} {1 2 10 12 28 33 37 39 41 54 58 60 69 80 98 scan 0 sort 0}
+do_test where7-2.786.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=69
+         OR (f GLOB '?defg*' AND f GLOB 'cdef*')
+         OR ((a BETWEEN 58 AND 60) AND a!=59)
+         OR a=98
+         OR b=300
+         OR a=41
+         OR ((a BETWEEN 37 AND 39) AND a!=38)
+         OR (d>=1.0 AND d<2.0 AND d NOT NULL)
+         OR a=33
+         OR ((a BETWEEN 10 AND 12) AND a!=11)
+  }
+} {1 2 10 12 28 33 37 39 41 54 58 60 69 80 98 scan 0 sort 0}
+do_test where7-2.787.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 68 AND 70) AND a!=69)
+         OR (d>=71.0 AND d<72.0 AND d NOT NULL)
+         OR ((a BETWEEN 94 AND 96) AND a!=95)
+         OR (f GLOB '?cdef*' AND f GLOB 'bcde*')
+         OR (g='gfedcba' AND f GLOB 'mnopq*')
+         OR ((a BETWEEN 22 AND 24) AND a!=23)
+         OR b=619
+         OR c=6006
+         OR b=91
+         OR b=297
+         OR b=165
+  }
+} {1 15 16 17 18 22 24 27 53 68 70 71 79 90 94 96 scan 0 sort 0}
+do_test where7-2.787.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 68 AND 70) AND a!=69)
+         OR (d>=71.0 AND d<72.0 AND d NOT NULL)
+         OR ((a BETWEEN 94 AND 96) AND a!=95)
+         OR (f GLOB '?cdef*' AND f GLOB 'bcde*')
+         OR (g='gfedcba' AND f GLOB 'mnopq*')
+         OR ((a BETWEEN 22 AND 24) AND a!=23)
+         OR b=619
+         OR c=6006
+         OR b=91
+         OR b=297
+         OR b=165
+  }
+} {1 15 16 17 18 22 24 27 53 68 70 71 79 90 94 96 scan 0 sort 0}
+do_test where7-2.788.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 9 AND 11) AND a!=10)
+         OR a=55
+         OR (g='jihgfed' AND f GLOB 'xyzab*')
+  }
+} {9 11 55 75 scan 0 sort 0}
+do_test where7-2.788.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 9 AND 11) AND a!=10)
+         OR a=55
+         OR (g='jihgfed' AND f GLOB 'xyzab*')
+  }
+} {9 11 55 75 scan 0 sort 0}
+do_test where7-2.789.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 84 AND 86) AND a!=85)
+         OR b=737
+         OR b=201
+         OR a=7
+         OR (d>=26.0 AND d<27.0 AND d NOT NULL)
+         OR (g='yxwvuts' AND f GLOB 'cdefg*')
+         OR b=957
+  }
+} {2 7 26 67 84 86 87 scan 0 sort 0}
+do_test where7-2.789.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 84 AND 86) AND a!=85)
+         OR b=737
+         OR b=201
+         OR a=7
+         OR (d>=26.0 AND d<27.0 AND d NOT NULL)
+         OR (g='yxwvuts' AND f GLOB 'cdefg*')
+         OR b=957
+  }
+} {2 7 26 67 84 86 87 scan 0 sort 0}
+do_test where7-2.790.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 90 AND 92) AND a!=91)
+         OR a=74
+         OR (g='lkjihgf' AND f GLOB 'pqrst*')
+         OR ((a BETWEEN 95 AND 97) AND a!=96)
+         OR (g='ihgfedc' AND f GLOB 'bcdef*')
+         OR (f GLOB '?tuvw*' AND f GLOB 'stuv*')
+         OR a=89
+  }
+} {18 44 67 70 74 79 89 90 92 95 96 97 scan 0 sort 0}
+do_test where7-2.790.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 90 AND 92) AND a!=91)
+         OR a=74
+         OR (g='lkjihgf' AND f GLOB 'pqrst*')
+         OR ((a BETWEEN 95 AND 97) AND a!=96)
+         OR (g='ihgfedc' AND f GLOB 'bcdef*')
+         OR (f GLOB '?tuvw*' AND f GLOB 'stuv*')
+         OR a=89
+  }
+} {18 44 67 70 74 79 89 90 92 95 96 97 scan 0 sort 0}
+do_test where7-2.791.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=45.0 AND d<46.0 AND d NOT NULL)
+         OR b=179
+         OR b=1081
+         OR b=377
+         OR b=495
+         OR b=564
+         OR b=289
+         OR (g='qponmlk' AND f GLOB 'nopqr*')
+  }
+} {39 45 scan 0 sort 0}
+do_test where7-2.791.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=45.0 AND d<46.0 AND d NOT NULL)
+         OR b=179
+         OR b=1081
+         OR b=377
+         OR b=495
+         OR b=564
+         OR b=289
+         OR (g='qponmlk' AND f GLOB 'nopqr*')
+  }
+} {39 45 scan 0 sort 0}
+do_test where7-2.792.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='utsrqpo' AND f GLOB 'wxyza*')
+         OR a=69
+         OR a=12
+         OR b=718
+         OR ((a BETWEEN 20 AND 22) AND a!=21)
+  }
+} {12 20 22 69 scan 0 sort 0}
+do_test where7-2.792.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='utsrqpo' AND f GLOB 'wxyza*')
+         OR a=69
+         OR a=12
+         OR b=718
+         OR ((a BETWEEN 20 AND 22) AND a!=21)
+  }
+} {12 20 22 69 scan 0 sort 0}
+do_test where7-2.793.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='tsrqpon' AND f GLOB 'zabcd*')
+         OR f='klmnopqrs'
+         OR b=674
+         OR a=96
+         OR a=99
+         OR b=608
+         OR b=707
+         OR f='cdefghijk'
+         OR a=91
+         OR (g='tsrqpon' AND f GLOB 'xyzab*')
+  }
+} {2 10 23 25 28 36 54 62 80 88 91 96 99 scan 0 sort 0}
+do_test where7-2.793.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='tsrqpon' AND f GLOB 'zabcd*')
+         OR f='klmnopqrs'
+         OR b=674
+         OR a=96
+         OR a=99
+         OR b=608
+         OR b=707
+         OR f='cdefghijk'
+         OR a=91
+         OR (g='tsrqpon' AND f GLOB 'xyzab*')
+  }
+} {2 10 23 25 28 36 54 62 80 88 91 96 99 scan 0 sort 0}
+do_test where7-2.794.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (f GLOB '?klmn*' AND f GLOB 'jklm*')
+         OR b=564
+         OR b=784
+         OR b=418
+         OR b=275
+         OR (g='gfedcba' AND f GLOB 'klmno*')
+         OR a=58
+         OR c=11011
+         OR b=660
+  }
+} {9 25 31 32 33 35 38 58 60 61 87 88 scan 0 sort 0}
+do_test where7-2.794.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (f GLOB '?klmn*' AND f GLOB 'jklm*')
+         OR b=564
+         OR b=784
+         OR b=418
+         OR b=275
+         OR (g='gfedcba' AND f GLOB 'klmno*')
+         OR a=58
+         OR c=11011
+         OR b=660
+  }
+} {9 25 31 32 33 35 38 58 60 61 87 88 scan 0 sort 0}
+do_test where7-2.795.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=25.0 AND d<26.0 AND d NOT NULL)
+         OR b=509
+         OR b=1004
+         OR ((a BETWEEN 28 AND 30) AND a!=29)
+         OR ((a BETWEEN 57 AND 59) AND a!=58)
+         OR (g='mlkjihg' AND f GLOB 'hijkl*')
+         OR f='pqrstuvwx'
+  }
+} {15 25 28 30 41 57 59 67 93 scan 0 sort 0}
+do_test where7-2.795.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=25.0 AND d<26.0 AND d NOT NULL)
+         OR b=509
+         OR b=1004
+         OR ((a BETWEEN 28 AND 30) AND a!=29)
+         OR ((a BETWEEN 57 AND 59) AND a!=58)
+         OR (g='mlkjihg' AND f GLOB 'hijkl*')
+         OR f='pqrstuvwx'
+  }
+} {15 25 28 30 41 57 59 67 93 scan 0 sort 0}
+do_test where7-2.796.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=440
+         OR ((a BETWEEN 52 AND 54) AND a!=53)
+  }
+} {40 52 54 scan 0 sort 0}
+do_test where7-2.796.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=440
+         OR ((a BETWEEN 52 AND 54) AND a!=53)
+  }
+} {40 52 54 scan 0 sort 0}
+do_test where7-2.797.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=95.0 AND d<96.0 AND d NOT NULL)
+         OR f='abcdefghi'
+  }
+} {26 52 78 95 scan 0 sort 0}
+do_test where7-2.797.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=95.0 AND d<96.0 AND d NOT NULL)
+         OR f='abcdefghi'
+  }
+} {26 52 78 95 scan 0 sort 0}
+do_test where7-2.798.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=19
+         OR a=29
+         OR b=476
+         OR (g='qponmlk' AND f GLOB 'pqrst*')
+         OR b=91
+  }
+} {19 29 41 scan 0 sort 0}
+do_test where7-2.798.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=19
+         OR a=29
+         OR b=476
+         OR (g='qponmlk' AND f GLOB 'pqrst*')
+         OR b=91
+  }
+} {19 29 41 scan 0 sort 0}
+do_test where7-2.799.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f='lmnopqrst'
+         OR (d>=8.0 AND d<9.0 AND d NOT NULL)
+         OR a=47
+         OR a=71
+  }
+} {8 11 37 47 63 71 89 scan 0 sort 0}
+do_test where7-2.799.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f='lmnopqrst'
+         OR (d>=8.0 AND d<9.0 AND d NOT NULL)
+         OR a=47
+         OR a=71
+  }
+} {8 11 37 47 63 71 89 scan 0 sort 0}
+do_test where7-2.800.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=531
+         OR (d>=12.0 AND d<13.0 AND d NOT NULL)
+         OR ((a BETWEEN 95 AND 97) AND a!=96)
+         OR ((a BETWEEN 32 AND 34) AND a!=33)
+         OR b=44
+         OR (g='hgfedcb' AND f GLOB 'ghijk*')
+         OR (g='onmlkji' AND f GLOB 'xyzab*')
+         OR b=707
+         OR b=322
+  }
+} {4 12 32 34 49 84 95 97 scan 0 sort 0}
+do_test where7-2.800.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=531
+         OR (d>=12.0 AND d<13.0 AND d NOT NULL)
+         OR ((a BETWEEN 95 AND 97) AND a!=96)
+         OR ((a BETWEEN 32 AND 34) AND a!=33)
+         OR b=44
+         OR (g='hgfedcb' AND f GLOB 'ghijk*')
+         OR (g='onmlkji' AND f GLOB 'xyzab*')
+         OR b=707
+         OR b=322
+  }
+} {4 12 32 34 49 84 95 97 scan 0 sort 0}
+do_test where7-2.801.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (f GLOB '?efgh*' AND f GLOB 'defg*')
+         OR (g='ihgfedc' AND f GLOB 'efghi*')
+         OR (d>=89.0 AND d<90.0 AND d NOT NULL)
+         OR f='jklmnopqr'
+  }
+} {3 9 29 35 55 61 81 82 87 89 scan 0 sort 0}
+do_test where7-2.801.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (f GLOB '?efgh*' AND f GLOB 'defg*')
+         OR (g='ihgfedc' AND f GLOB 'efghi*')
+         OR (d>=89.0 AND d<90.0 AND d NOT NULL)
+         OR f='jklmnopqr'
+  }
+} {3 9 29 35 55 61 81 82 87 89 scan 0 sort 0}
+do_test where7-2.802.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=946
+         OR (g='ihgfedc' AND f GLOB 'abcde*')
+         OR a=47
+         OR (g='qponmlk' AND f GLOB 'qrstu*')
+         OR (d>=93.0 AND d<94.0 AND d NOT NULL)
+         OR (g='wvutsrq' AND f GLOB 'ijklm*')
+         OR b=80
+         OR ((a BETWEEN 60 AND 62) AND a!=61)
+         OR (g='tsrqpon' AND f GLOB 'xyzab*')
+  }
+} {8 23 42 47 60 62 78 86 93 scan 0 sort 0}
+do_test where7-2.802.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=946
+         OR (g='ihgfedc' AND f GLOB 'abcde*')
+         OR a=47
+         OR (g='qponmlk' AND f GLOB 'qrstu*')
+         OR (d>=93.0 AND d<94.0 AND d NOT NULL)
+         OR (g='wvutsrq' AND f GLOB 'ijklm*')
+         OR b=80
+         OR ((a BETWEEN 60 AND 62) AND a!=61)
+         OR (g='tsrqpon' AND f GLOB 'xyzab*')
+  }
+} {8 23 42 47 60 62 78 86 93 scan 0 sort 0}
+do_test where7-2.803.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=48
+         OR (d>=55.0 AND d<56.0 AND d NOT NULL)
+         OR b=1015
+         OR a=57
+         OR (f GLOB '?klmn*' AND f GLOB 'jklm*')
+         OR ((a BETWEEN 47 AND 49) AND a!=48)
+         OR ((a BETWEEN 98 AND 100) AND a!=99)
+         OR (g='onmlkji' AND f GLOB 'yzabc*')
+         OR (d>=4.0 AND d<5.0 AND d NOT NULL)
+         OR b=165
+  }
+} {4 9 15 35 47 48 49 50 55 57 61 87 98 100 scan 0 sort 0}
+do_test where7-2.803.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=48
+         OR (d>=55.0 AND d<56.0 AND d NOT NULL)
+         OR b=1015
+         OR a=57
+         OR (f GLOB '?klmn*' AND f GLOB 'jklm*')
+         OR ((a BETWEEN 47 AND 49) AND a!=48)
+         OR ((a BETWEEN 98 AND 100) AND a!=99)
+         OR (g='onmlkji' AND f GLOB 'yzabc*')
+         OR (d>=4.0 AND d<5.0 AND d NOT NULL)
+         OR b=165
+  }
+} {4 9 15 35 47 48 49 50 55 57 61 87 98 100 scan 0 sort 0}
+do_test where7-2.804.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 97 AND 99) AND a!=98)
+         OR a=73
+         OR b=1048
+         OR c>=34035
+         OR (g='ihgfedc' AND f GLOB 'cdefg*')
+         OR a=72
+         OR ((a BETWEEN 91 AND 93) AND a!=92)
+         OR b=638
+  }
+} {58 72 73 80 91 93 97 99 scan 0 sort 0}
+do_test where7-2.804.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 97 AND 99) AND a!=98)
+         OR a=73
+         OR b=1048
+         OR c>=34035
+         OR (g='ihgfedc' AND f GLOB 'cdefg*')
+         OR a=72
+         OR ((a BETWEEN 91 AND 93) AND a!=92)
+         OR b=638
+  }
+} {58 72 73 80 91 93 97 99 scan 0 sort 0}
+do_test where7-2.805.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 28 AND 30) AND a!=29)
+         OR a=39
+         OR b=165
+  }
+} {15 28 30 39 scan 0 sort 0}
+do_test where7-2.805.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 28 AND 30) AND a!=29)
+         OR a=39
+         OR b=165
+  }
+} {15 28 30 39 scan 0 sort 0}
+do_test where7-2.806.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=50
+         OR ((a BETWEEN 61 AND 63) AND a!=62)
+         OR (f GLOB '?stuv*' AND f GLOB 'rstu*')
+         OR a=32
+         OR ((a BETWEEN 93 AND 95) AND a!=94)
+         OR (g='ponmlkj' AND f GLOB 'tuvwx*')
+         OR a=14
+         OR (d>=97.0 AND d<98.0 AND d NOT NULL)
+         OR b=946
+         OR ((a BETWEEN 53 AND 55) AND a!=54)
+         OR b=124
+  }
+} {14 17 32 43 45 50 53 55 61 63 69 86 93 95 97 scan 0 sort 0}
+do_test where7-2.806.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=50
+         OR ((a BETWEEN 61 AND 63) AND a!=62)
+         OR (f GLOB '?stuv*' AND f GLOB 'rstu*')
+         OR a=32
+         OR ((a BETWEEN 93 AND 95) AND a!=94)
+         OR (g='ponmlkj' AND f GLOB 'tuvwx*')
+         OR a=14
+         OR (d>=97.0 AND d<98.0 AND d NOT NULL)
+         OR b=946
+         OR ((a BETWEEN 53 AND 55) AND a!=54)
+         OR b=124
+  }
+} {14 17 32 43 45 50 53 55 61 63 69 86 93 95 97 scan 0 sort 0}
+do_test where7-2.807.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 88 AND 90) AND a!=89)
+         OR (d>=52.0 AND d<53.0 AND d NOT NULL)
+         OR (d>=66.0 AND d<67.0 AND d NOT NULL)
+         OR (g='gfedcba' AND f GLOB 'klmno*')
+  }
+} {52 66 88 90 scan 0 sort 0}
+do_test where7-2.807.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 88 AND 90) AND a!=89)
+         OR (d>=52.0 AND d<53.0 AND d NOT NULL)
+         OR (d>=66.0 AND d<67.0 AND d NOT NULL)
+         OR (g='gfedcba' AND f GLOB 'klmno*')
+  }
+} {52 66 88 90 scan 0 sort 0}
+do_test where7-2.808.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=6
+         OR f='tuvwxyzab'
+         OR (g='mlkjihg' AND f GLOB 'hijkl*')
+         OR b=286
+         OR b=781
+  }
+} {6 19 26 45 59 71 97 scan 0 sort 0}
+do_test where7-2.808.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=6
+         OR f='tuvwxyzab'
+         OR (g='mlkjihg' AND f GLOB 'hijkl*')
+         OR b=286
+         OR b=781
+  }
+} {6 19 26 45 59 71 97 scan 0 sort 0}
+do_test where7-2.809.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='jihgfed' AND f GLOB 'zabcd*')
+         OR (f GLOB '?mnop*' AND f GLOB 'lmno*')
+         OR (d>=43.0 AND d<44.0 AND d NOT NULL)
+         OR ((a BETWEEN 79 AND 81) AND a!=80)
+         OR (g='edcbazy' AND f GLOB 'wxyza*')
+         OR (f GLOB '?klmn*' AND f GLOB 'jklm*')
+         OR f='vwxyzabcd'
+         OR b=275
+  }
+} {9 11 21 25 35 37 43 47 61 63 73 77 79 81 87 89 99 100 scan 0 sort 0}
+do_test where7-2.809.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='jihgfed' AND f GLOB 'zabcd*')
+         OR (f GLOB '?mnop*' AND f GLOB 'lmno*')
+         OR (d>=43.0 AND d<44.0 AND d NOT NULL)
+         OR ((a BETWEEN 79 AND 81) AND a!=80)
+         OR (g='edcbazy' AND f GLOB 'wxyza*')
+         OR (f GLOB '?klmn*' AND f GLOB 'jklm*')
+         OR f='vwxyzabcd'
+         OR b=275
+  }
+} {9 11 21 25 35 37 43 47 61 63 73 77 79 81 87 89 99 100 scan 0 sort 0}
+do_test where7-2.810.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=30.0 AND d<31.0 AND d NOT NULL)
+         OR (g='xwvutsr' AND f GLOB 'efghi*')
+         OR (g='gfedcba' AND f GLOB 'lmnop*')
+         OR (d>=64.0 AND d<65.0 AND d NOT NULL)
+         OR (g='gfedcba' AND f GLOB 'nopqr*')
+         OR a=59
+  }
+} {4 30 59 64 89 91 scan 0 sort 0}
+do_test where7-2.810.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=30.0 AND d<31.0 AND d NOT NULL)
+         OR (g='xwvutsr' AND f GLOB 'efghi*')
+         OR (g='gfedcba' AND f GLOB 'lmnop*')
+         OR (d>=64.0 AND d<65.0 AND d NOT NULL)
+         OR (g='gfedcba' AND f GLOB 'nopqr*')
+         OR a=59
+  }
+} {4 30 59 64 89 91 scan 0 sort 0}
+do_test where7-2.811.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (f GLOB '?xyza*' AND f GLOB 'wxyz*')
+         OR ((a BETWEEN 8 AND 10) AND a!=9)
+         OR (g='kjihgfe' AND f GLOB 'tuvwx*')
+         OR (g='edcbazy' AND f GLOB 'vwxyz*')
+         OR b=663
+         OR f='ghijklmno'
+         OR ((a BETWEEN 14 AND 16) AND a!=15)
+         OR f='ghijklmno'
+         OR (d>=64.0 AND d<65.0 AND d NOT NULL)
+         OR (d>=19.0 AND d<20.0 AND d NOT NULL)
+         OR b=1081
+  }
+} {6 8 10 14 16 19 22 32 48 58 64 71 74 84 99 100 scan 0 sort 0}
+do_test where7-2.811.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (f GLOB '?xyza*' AND f GLOB 'wxyz*')
+         OR ((a BETWEEN 8 AND 10) AND a!=9)
+         OR (g='kjihgfe' AND f GLOB 'tuvwx*')
+         OR (g='edcbazy' AND f GLOB 'vwxyz*')
+         OR b=663
+         OR f='ghijklmno'
+         OR ((a BETWEEN 14 AND 16) AND a!=15)
+         OR f='ghijklmno'
+         OR (d>=64.0 AND d<65.0 AND d NOT NULL)
+         OR (d>=19.0 AND d<20.0 AND d NOT NULL)
+         OR b=1081
+  }
+} {6 8 10 14 16 19 22 32 48 58 64 71 74 84 99 100 scan 0 sort 0}
+do_test where7-2.812.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 30 AND 32) AND a!=31)
+         OR a=96
+         OR b=355
+         OR (d>=81.0 AND d<82.0 AND d NOT NULL)
+         OR b=597
+         OR ((a BETWEEN 92 AND 94) AND a!=93)
+         OR (d>=88.0 AND d<89.0 AND d NOT NULL)
+         OR (f GLOB '?lmno*' AND f GLOB 'klmn*')
+         OR b=168
+         OR (g='vutsrqp' AND f GLOB 'pqrst*')
+  }
+} {10 15 30 32 36 62 81 88 92 94 96 scan 0 sort 0}
+do_test where7-2.812.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 30 AND 32) AND a!=31)
+         OR a=96
+         OR b=355
+         OR (d>=81.0 AND d<82.0 AND d NOT NULL)
+         OR b=597
+         OR ((a BETWEEN 92 AND 94) AND a!=93)
+         OR (d>=88.0 AND d<89.0 AND d NOT NULL)
+         OR (f GLOB '?lmno*' AND f GLOB 'klmn*')
+         OR b=168
+         OR (g='vutsrqp' AND f GLOB 'pqrst*')
+  }
+} {10 15 30 32 36 62 81 88 92 94 96 scan 0 sort 0}
+do_test where7-2.813.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=47.0 AND d<48.0 AND d NOT NULL)
+         OR b=957
+         OR (d>=9.0 AND d<10.0 AND d NOT NULL)
+         OR ((a BETWEEN 87 AND 89) AND a!=88)
+         OR ((a BETWEEN 58 AND 60) AND a!=59)
+         OR a=40
+  }
+} {9 40 47 58 60 87 89 scan 0 sort 0}
+do_test where7-2.813.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=47.0 AND d<48.0 AND d NOT NULL)
+         OR b=957
+         OR (d>=9.0 AND d<10.0 AND d NOT NULL)
+         OR ((a BETWEEN 87 AND 89) AND a!=88)
+         OR ((a BETWEEN 58 AND 60) AND a!=59)
+         OR a=40
+  }
+} {9 40 47 58 60 87 89 scan 0 sort 0}
+do_test where7-2.814.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 12 AND 14) AND a!=13)
+         OR a=36
+         OR a=75
+         OR b=179
+         OR (d>=43.0 AND d<44.0 AND d NOT NULL)
+         OR (g='utsrqpo' AND f GLOB 'stuvw*')
+         OR (d>=65.0 AND d<66.0 AND d NOT NULL)
+         OR b=850
+         OR a=62
+  }
+} {12 14 18 36 43 62 65 75 scan 0 sort 0}
+do_test where7-2.814.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 12 AND 14) AND a!=13)
+         OR a=36
+         OR a=75
+         OR b=179
+         OR (d>=43.0 AND d<44.0 AND d NOT NULL)
+         OR (g='utsrqpo' AND f GLOB 'stuvw*')
+         OR (d>=65.0 AND d<66.0 AND d NOT NULL)
+         OR b=850
+         OR a=62
+  }
+} {12 14 18 36 43 62 65 75 scan 0 sort 0}
+do_test where7-2.815.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 21 AND 23) AND a!=22)
+         OR a=79
+         OR a=66
+         OR b=487
+         OR a=1
+         OR (d>=54.0 AND d<55.0 AND d NOT NULL)
+         OR c=5005
+         OR a=47
+         OR c=5005
+         OR b=319
+         OR b=1037
+  }
+} {1 13 14 15 21 23 29 47 54 66 79 scan 0 sort 0}
+do_test where7-2.815.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 21 AND 23) AND a!=22)
+         OR a=79
+         OR a=66
+         OR b=487
+         OR a=1
+         OR (d>=54.0 AND d<55.0 AND d NOT NULL)
+         OR c=5005
+         OR a=47
+         OR c=5005
+         OR b=319
+         OR b=1037
+  }
+} {1 13 14 15 21 23 29 47 54 66 79 scan 0 sort 0}
+do_test where7-2.816.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=176
+         OR b=297
+         OR (g='tsrqpon' AND f GLOB 'zabcd*')
+         OR f='ijklmnopq'
+  }
+} {8 16 25 27 34 60 86 scan 0 sort 0}
+do_test where7-2.816.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=176
+         OR b=297
+         OR (g='tsrqpon' AND f GLOB 'zabcd*')
+         OR f='ijklmnopq'
+  }
+} {8 16 25 27 34 60 86 scan 0 sort 0}
+do_test where7-2.817.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=10.0 AND d<11.0 AND d NOT NULL)
+         OR ((a BETWEEN 90 AND 92) AND a!=91)
+         OR b=319
+         OR ((a BETWEEN 31 AND 33) AND a!=32)
+         OR ((a BETWEEN 9 AND 11) AND a!=10)
+         OR a=21
+         OR (d>=72.0 AND d<73.0 AND d NOT NULL)
+  }
+} {9 10 11 21 29 31 33 72 90 92 scan 0 sort 0}
+do_test where7-2.817.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=10.0 AND d<11.0 AND d NOT NULL)
+         OR ((a BETWEEN 90 AND 92) AND a!=91)
+         OR b=319
+         OR ((a BETWEEN 31 AND 33) AND a!=32)
+         OR ((a BETWEEN 9 AND 11) AND a!=10)
+         OR a=21
+         OR (d>=72.0 AND d<73.0 AND d NOT NULL)
+  }
+} {9 10 11 21 29 31 33 72 90 92 scan 0 sort 0}
+do_test where7-2.818.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=22.0 AND d<23.0 AND d NOT NULL)
+         OR b=396
+         OR (g='kjihgfe' AND f GLOB 'uvwxy*')
+         OR b=1012
+         OR (f GLOB '?klmn*' AND f GLOB 'jklm*')
+         OR b=784
+         OR (d>=60.0 AND d<61.0 AND d NOT NULL)
+         OR b=979
+         OR c<=10
+         OR b=913
+         OR b=66
+  }
+} {6 9 22 35 36 60 61 72 83 87 89 92 scan 0 sort 0}
+do_test where7-2.818.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=22.0 AND d<23.0 AND d NOT NULL)
+         OR b=396
+         OR (g='kjihgfe' AND f GLOB 'uvwxy*')
+         OR b=1012
+         OR (f GLOB '?klmn*' AND f GLOB 'jklm*')
+         OR b=784
+         OR (d>=60.0 AND d<61.0 AND d NOT NULL)
+         OR b=979
+         OR c<=10
+         OR b=913
+         OR b=66
+  }
+} {6 9 22 35 36 60 61 72 83 87 89 92 scan 0 sort 0}
+do_test where7-2.819.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=3
+         OR b=803
+  }
+} {3 73 scan 0 sort 0}
+do_test where7-2.819.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=3
+         OR b=803
+  }
+} {3 73 scan 0 sort 0}
+do_test where7-2.820.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 79 AND 81) AND a!=80)
+         OR (f GLOB '?rstu*' AND f GLOB 'qrst*')
+         OR ((a BETWEEN 23 AND 25) AND a!=24)
+         OR (f GLOB '?uvwx*' AND f GLOB 'tuvw*')
+  }
+} {16 19 23 25 42 45 68 71 79 81 94 97 scan 0 sort 0}
+do_test where7-2.820.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 79 AND 81) AND a!=80)
+         OR (f GLOB '?rstu*' AND f GLOB 'qrst*')
+         OR ((a BETWEEN 23 AND 25) AND a!=24)
+         OR (f GLOB '?uvwx*' AND f GLOB 'tuvw*')
+  }
+} {16 19 23 25 42 45 68 71 79 81 94 97 scan 0 sort 0}
+do_test where7-2.821.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=1001
+         OR a=16
+         OR b=132
+         OR b=1012
+         OR f='xyzabcdef'
+         OR b=682
+         OR (d>=52.0 AND d<53.0 AND d NOT NULL)
+  }
+} {1 2 3 12 16 23 49 52 62 75 92 scan 0 sort 0}
+do_test where7-2.821.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=1001
+         OR a=16
+         OR b=132
+         OR b=1012
+         OR f='xyzabcdef'
+         OR b=682
+         OR (d>=52.0 AND d<53.0 AND d NOT NULL)
+  }
+} {1 2 3 12 16 23 49 52 62 75 92 scan 0 sort 0}
+do_test where7-2.822.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=96
+         OR (d>=19.0 AND d<20.0 AND d NOT NULL)
+  }
+} {19 96 scan 0 sort 0}
+do_test where7-2.822.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=96
+         OR (d>=19.0 AND d<20.0 AND d NOT NULL)
+  }
+} {19 96 scan 0 sort 0}
+do_test where7-2.823.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=2
+         OR (d>=11.0 AND d<12.0 AND d NOT NULL)
+         OR a=23
+         OR b=1092
+         OR c=19019
+         OR b=245
+         OR ((a BETWEEN 97 AND 99) AND a!=98)
+         OR (f GLOB '?nopq*' AND f GLOB 'mnop*')
+         OR ((a BETWEEN 68 AND 70) AND a!=69)
+         OR b=572
+         OR ((a BETWEEN 22 AND 24) AND a!=23)
+  }
+} {2 11 12 22 23 24 38 52 55 56 57 64 68 70 90 97 99 scan 0 sort 0}
+do_test where7-2.823.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=2
+         OR (d>=11.0 AND d<12.0 AND d NOT NULL)
+         OR a=23
+         OR b=1092
+         OR c=19019
+         OR b=245
+         OR ((a BETWEEN 97 AND 99) AND a!=98)
+         OR (f GLOB '?nopq*' AND f GLOB 'mnop*')
+         OR ((a BETWEEN 68 AND 70) AND a!=69)
+         OR b=572
+         OR ((a BETWEEN 22 AND 24) AND a!=23)
+  }
+} {2 11 12 22 23 24 38 52 55 56 57 64 68 70 90 97 99 scan 0 sort 0}
+do_test where7-2.824.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=16.0 AND d<17.0 AND d NOT NULL)
+         OR b=993
+         OR c=17017
+         OR (d>=85.0 AND d<86.0 AND d NOT NULL)
+         OR (d>=37.0 AND d<38.0 AND d NOT NULL)
+         OR (d>=29.0 AND d<30.0 AND d NOT NULL)
+         OR (d>=53.0 AND d<54.0 AND d NOT NULL)
+         OR b=333
+  }
+} {16 29 37 49 50 51 53 85 scan 0 sort 0}
+do_test where7-2.824.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=16.0 AND d<17.0 AND d NOT NULL)
+         OR b=993
+         OR c=17017
+         OR (d>=85.0 AND d<86.0 AND d NOT NULL)
+         OR (d>=37.0 AND d<38.0 AND d NOT NULL)
+         OR (d>=29.0 AND d<30.0 AND d NOT NULL)
+         OR (d>=53.0 AND d<54.0 AND d NOT NULL)
+         OR b=333
+  }
+} {16 29 37 49 50 51 53 85 scan 0 sort 0}
+do_test where7-2.825.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=330
+         OR a=73
+         OR (d>=61.0 AND d<62.0 AND d NOT NULL)
+         OR (d>=40.0 AND d<41.0 AND d NOT NULL)
+         OR b=828
+         OR b=363
+         OR (g='rqponml' AND f GLOB 'lmnop*')
+  }
+} {30 33 37 40 61 73 scan 0 sort 0}
+do_test where7-2.825.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=330
+         OR a=73
+         OR (d>=61.0 AND d<62.0 AND d NOT NULL)
+         OR (d>=40.0 AND d<41.0 AND d NOT NULL)
+         OR b=828
+         OR b=363
+         OR (g='rqponml' AND f GLOB 'lmnop*')
+  }
+} {30 33 37 40 61 73 scan 0 sort 0}
+do_test where7-2.826.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='gfedcba' AND f GLOB 'lmnop*')
+         OR a=41
+         OR (d>=29.0 AND d<30.0 AND d NOT NULL)
+         OR b=825
+  }
+} {29 41 75 89 scan 0 sort 0}
+do_test where7-2.826.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='gfedcba' AND f GLOB 'lmnop*')
+         OR a=41
+         OR (d>=29.0 AND d<30.0 AND d NOT NULL)
+         OR b=825
+  }
+} {29 41 75 89 scan 0 sort 0}
+do_test where7-2.827.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 46 AND 48) AND a!=47)
+         OR (d>=10.0 AND d<11.0 AND d NOT NULL)
+         OR b=905
+         OR b=176
+         OR ((a BETWEEN 89 AND 91) AND a!=90)
+         OR b=561
+         OR c=8008
+         OR (g='hgfedcb' AND f GLOB 'ghijk*')
+         OR b=935
+         OR c=1001
+  }
+} {1 2 3 10 16 22 23 24 46 48 51 84 85 89 91 scan 0 sort 0}
+do_test where7-2.827.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 46 AND 48) AND a!=47)
+         OR (d>=10.0 AND d<11.0 AND d NOT NULL)
+         OR b=905
+         OR b=176
+         OR ((a BETWEEN 89 AND 91) AND a!=90)
+         OR b=561
+         OR c=8008
+         OR (g='hgfedcb' AND f GLOB 'ghijk*')
+         OR b=935
+         OR c=1001
+  }
+} {1 2 3 10 16 22 23 24 46 48 51 84 85 89 91 scan 0 sort 0}
+do_test where7-2.828.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 75 AND 77) AND a!=76)
+         OR (g='kjihgfe' AND f GLOB 'uvwxy*')
+  }
+} {72 75 77 scan 0 sort 0}
+do_test where7-2.828.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 75 AND 77) AND a!=76)
+         OR (g='kjihgfe' AND f GLOB 'uvwxy*')
+  }
+} {72 75 77 scan 0 sort 0}
+do_test where7-2.829.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 5 AND 7) AND a!=6)
+         OR a=28
+  }
+} {5 7 28 scan 0 sort 0}
+do_test where7-2.829.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 5 AND 7) AND a!=6)
+         OR a=28
+  }
+} {5 7 28 scan 0 sort 0}
+do_test where7-2.830.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=781
+         OR b=410
+  }
+} {71 scan 0 sort 0}
+do_test where7-2.830.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=781
+         OR b=410
+  }
+} {71 scan 0 sort 0}
+do_test where7-2.831.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 18 AND 20) AND a!=19)
+         OR ((a BETWEEN 40 AND 42) AND a!=41)
+         OR (d>=72.0 AND d<73.0 AND d NOT NULL)
+         OR (d>=56.0 AND d<57.0 AND d NOT NULL)
+         OR (d>=63.0 AND d<64.0 AND d NOT NULL)
+         OR f='zabcdefgh'
+         OR b=861
+         OR (g='vutsrqp' AND f GLOB 'pqrst*')
+         OR a=28
+         OR (f GLOB '?hijk*' AND f GLOB 'ghij*')
+         OR b=311
+  }
+} {6 15 18 20 25 28 32 40 42 51 56 58 63 72 77 84 scan 0 sort 0}
+do_test where7-2.831.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 18 AND 20) AND a!=19)
+         OR ((a BETWEEN 40 AND 42) AND a!=41)
+         OR (d>=72.0 AND d<73.0 AND d NOT NULL)
+         OR (d>=56.0 AND d<57.0 AND d NOT NULL)
+         OR (d>=63.0 AND d<64.0 AND d NOT NULL)
+         OR f='zabcdefgh'
+         OR b=861
+         OR (g='vutsrqp' AND f GLOB 'pqrst*')
+         OR a=28
+         OR (f GLOB '?hijk*' AND f GLOB 'ghij*')
+         OR b=311
+  }
+} {6 15 18 20 25 28 32 40 42 51 56 58 63 72 77 84 scan 0 sort 0}
+do_test where7-2.832.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=575
+         OR (f GLOB '?nopq*' AND f GLOB 'mnop*')
+         OR (d>=73.0 AND d<74.0 AND d NOT NULL)
+         OR b=418
+         OR (f GLOB '?qrst*' AND f GLOB 'pqrs*')
+         OR b=792
+         OR b=861
+         OR b=220
+         OR ((a BETWEEN 89 AND 91) AND a!=90)
+  }
+} {12 15 20 38 41 64 67 72 73 89 90 91 93 scan 0 sort 0}
+do_test where7-2.832.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=575
+         OR (f GLOB '?nopq*' AND f GLOB 'mnop*')
+         OR (d>=73.0 AND d<74.0 AND d NOT NULL)
+         OR b=418
+         OR (f GLOB '?qrst*' AND f GLOB 'pqrs*')
+         OR b=792
+         OR b=861
+         OR b=220
+         OR ((a BETWEEN 89 AND 91) AND a!=90)
+  }
+} {12 15 20 38 41 64 67 72 73 89 90 91 93 scan 0 sort 0}
+do_test where7-2.833.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=517
+         OR b=913
+         OR b=253
+         OR b=198
+         OR (d>=27.0 AND d<28.0 AND d NOT NULL)
+         OR a=17
+         OR (d>=85.0 AND d<86.0 AND d NOT NULL)
+  }
+} {17 18 23 27 47 83 85 scan 0 sort 0}
+do_test where7-2.833.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=517
+         OR b=913
+         OR b=253
+         OR b=198
+         OR (d>=27.0 AND d<28.0 AND d NOT NULL)
+         OR a=17
+         OR (d>=85.0 AND d<86.0 AND d NOT NULL)
+  }
+} {17 18 23 27 47 83 85 scan 0 sort 0}
+do_test where7-2.834.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='qponmlk' AND f GLOB 'qrstu*')
+         OR b=693
+         OR a=73
+         OR b=627
+         OR c=5005
+         OR (d>=62.0 AND d<63.0 AND d NOT NULL)
+         OR (d>=28.0 AND d<29.0 AND d NOT NULL)
+         OR b=267
+         OR b=872
+         OR a=27
+         OR (g='gfedcba' AND f GLOB 'klmno*')
+  }
+} {13 14 15 27 28 42 57 62 63 73 88 scan 0 sort 0}
+do_test where7-2.834.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='qponmlk' AND f GLOB 'qrstu*')
+         OR b=693
+         OR a=73
+         OR b=627
+         OR c=5005
+         OR (d>=62.0 AND d<63.0 AND d NOT NULL)
+         OR (d>=28.0 AND d<29.0 AND d NOT NULL)
+         OR b=267
+         OR b=872
+         OR a=27
+         OR (g='gfedcba' AND f GLOB 'klmno*')
+  }
+} {13 14 15 27 28 42 57 62 63 73 88 scan 0 sort 0}
+do_test where7-2.835.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=10
+         OR ((a BETWEEN 95 AND 97) AND a!=96)
+         OR ((a BETWEEN 13 AND 15) AND a!=14)
+         OR b=1059
+         OR a=70
+         OR a=93
+  }
+} {10 13 15 70 93 95 97 scan 0 sort 0}
+do_test where7-2.835.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=10
+         OR ((a BETWEEN 95 AND 97) AND a!=96)
+         OR ((a BETWEEN 13 AND 15) AND a!=14)
+         OR b=1059
+         OR a=70
+         OR a=93
+  }
+} {10 13 15 70 93 95 97 scan 0 sort 0}
+do_test where7-2.836.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=30
+         OR a=32
+         OR b=1037
+         OR b=198
+         OR (d>=13.0 AND d<14.0 AND d NOT NULL)
+         OR a=25
+  }
+} {13 18 25 30 32 scan 0 sort 0}
+do_test where7-2.836.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=30
+         OR a=32
+         OR b=1037
+         OR b=198
+         OR (d>=13.0 AND d<14.0 AND d NOT NULL)
+         OR a=25
+  }
+} {13 18 25 30 32 scan 0 sort 0}
+do_test where7-2.837.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='ponmlkj' AND f GLOB 'uvwxy*')
+         OR b=66
+         OR b=322
+         OR b=465
+         OR (g='gfedcba' AND f GLOB 'lmnop*')
+         OR (d>=38.0 AND d<39.0 AND d NOT NULL)
+         OR (d>=7.0 AND d<8.0 AND d NOT NULL)
+         OR ((a BETWEEN 77 AND 79) AND a!=78)
+         OR (g='lkjihgf' AND f GLOB 'mnopq*')
+         OR (d>=38.0 AND d<39.0 AND d NOT NULL)
+         OR b=454
+  }
+} {6 7 38 46 64 77 79 89 scan 0 sort 0}
+do_test where7-2.837.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='ponmlkj' AND f GLOB 'uvwxy*')
+         OR b=66
+         OR b=322
+         OR b=465
+         OR (g='gfedcba' AND f GLOB 'lmnop*')
+         OR (d>=38.0 AND d<39.0 AND d NOT NULL)
+         OR (d>=7.0 AND d<8.0 AND d NOT NULL)
+         OR ((a BETWEEN 77 AND 79) AND a!=78)
+         OR (g='lkjihgf' AND f GLOB 'mnopq*')
+         OR (d>=38.0 AND d<39.0 AND d NOT NULL)
+         OR b=454
+  }
+} {6 7 38 46 64 77 79 89 scan 0 sort 0}
+do_test where7-2.838.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=924
+         OR ((a BETWEEN 35 AND 37) AND a!=36)
+         OR c=15015
+         OR (d>=84.0 AND d<85.0 AND d NOT NULL)
+         OR ((a BETWEEN 3 AND 5) AND a!=4)
+         OR (g='onmlkji' AND f GLOB 'abcde*')
+         OR b=803
+  }
+} {3 5 35 37 43 44 45 52 73 84 scan 0 sort 0}
+do_test where7-2.838.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=924
+         OR ((a BETWEEN 35 AND 37) AND a!=36)
+         OR c=15015
+         OR (d>=84.0 AND d<85.0 AND d NOT NULL)
+         OR ((a BETWEEN 3 AND 5) AND a!=4)
+         OR (g='onmlkji' AND f GLOB 'abcde*')
+         OR b=803
+  }
+} {3 5 35 37 43 44 45 52 73 84 scan 0 sort 0}
+do_test where7-2.839.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=1100
+         OR (g='wvutsrq' AND f GLOB 'mnopq*')
+         OR ((a BETWEEN 72 AND 74) AND a!=73)
+         OR ((a BETWEEN 68 AND 70) AND a!=69)
+         OR a=75
+         OR a=45
+         OR (g='gfedcba' AND f GLOB 'mnopq*')
+         OR a=27
+         OR (d>=77.0 AND d<78.0 AND d NOT NULL)
+         OR b=850
+         OR ((a BETWEEN 55 AND 57) AND a!=56)
+  }
+} {12 27 45 55 57 68 70 72 74 75 77 90 100 scan 0 sort 0}
+do_test where7-2.839.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=1100
+         OR (g='wvutsrq' AND f GLOB 'mnopq*')
+         OR ((a BETWEEN 72 AND 74) AND a!=73)
+         OR ((a BETWEEN 68 AND 70) AND a!=69)
+         OR a=75
+         OR a=45
+         OR (g='gfedcba' AND f GLOB 'mnopq*')
+         OR a=27
+         OR (d>=77.0 AND d<78.0 AND d NOT NULL)
+         OR b=850
+         OR ((a BETWEEN 55 AND 57) AND a!=56)
+  }
+} {12 27 45 55 57 68 70 72 74 75 77 90 100 scan 0 sort 0}
+do_test where7-2.840.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=751
+         OR ((a BETWEEN 96 AND 98) AND a!=97)
+         OR (d>=71.0 AND d<72.0 AND d NOT NULL)
+         OR (g='gfedcba' AND f GLOB 'lmnop*')
+         OR (d>=56.0 AND d<57.0 AND d NOT NULL)
+         OR a=89
+         OR ((a BETWEEN 36 AND 38) AND a!=37)
+  }
+} {36 38 56 71 89 96 98 scan 0 sort 0}
+do_test where7-2.840.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=751
+         OR ((a BETWEEN 96 AND 98) AND a!=97)
+         OR (d>=71.0 AND d<72.0 AND d NOT NULL)
+         OR (g='gfedcba' AND f GLOB 'lmnop*')
+         OR (d>=56.0 AND d<57.0 AND d NOT NULL)
+         OR a=89
+         OR ((a BETWEEN 36 AND 38) AND a!=37)
+  }
+} {36 38 56 71 89 96 98 scan 0 sort 0}
+do_test where7-2.841.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='wvutsrq' AND f GLOB 'jklmn*')
+         OR (g='yxwvuts' AND f GLOB 'bcdef*')
+         OR a=1
+         OR (g='utsrqpo' AND f GLOB 'tuvwx*')
+  }
+} {1 9 19 scan 0 sort 0}
+do_test where7-2.841.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='wvutsrq' AND f GLOB 'jklmn*')
+         OR (g='yxwvuts' AND f GLOB 'bcdef*')
+         OR a=1
+         OR (g='utsrqpo' AND f GLOB 'tuvwx*')
+  }
+} {1 9 19 scan 0 sort 0}
+do_test where7-2.842.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=927
+         OR c=15015
+         OR f='klmnopqrs'
+         OR c=8008
+         OR ((a BETWEEN 41 AND 43) AND a!=42)
+         OR b=960
+         OR (g='jihgfed' AND f GLOB 'yzabc*')
+         OR b=443
+         OR (g='rqponml' AND f GLOB 'ijklm*')
+  }
+} {10 22 23 24 34 36 41 43 44 45 62 76 88 scan 0 sort 0}
+do_test where7-2.842.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=927
+         OR c=15015
+         OR f='klmnopqrs'
+         OR c=8008
+         OR ((a BETWEEN 41 AND 43) AND a!=42)
+         OR b=960
+         OR (g='jihgfed' AND f GLOB 'yzabc*')
+         OR b=443
+         OR (g='rqponml' AND f GLOB 'ijklm*')
+  }
+} {10 22 23 24 34 36 41 43 44 45 62 76 88 scan 0 sort 0}
+do_test where7-2.843.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=37.0 AND d<38.0 AND d NOT NULL)
+         OR b=212
+         OR f='cdefghijk'
+  }
+} {2 28 37 54 80 scan 0 sort 0}
+do_test where7-2.843.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=37.0 AND d<38.0 AND d NOT NULL)
+         OR b=212
+         OR f='cdefghijk'
+  }
+} {2 28 37 54 80 scan 0 sort 0}
+do_test where7-2.844.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=685
+         OR (g='ponmlkj' AND f GLOB 'rstuv*')
+         OR (d>=63.0 AND d<64.0 AND d NOT NULL)
+         OR b=520
+         OR (d>=76.0 AND d<77.0 AND d NOT NULL)
+         OR a=53
+         OR ((a BETWEEN 91 AND 93) AND a!=92)
+         OR b=938
+         OR (g='jihgfed' AND f GLOB 'vwxyz*')
+         OR c=25025
+  }
+} {43 53 63 73 74 75 76 91 93 scan 0 sort 0}
+do_test where7-2.844.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=685
+         OR (g='ponmlkj' AND f GLOB 'rstuv*')
+         OR (d>=63.0 AND d<64.0 AND d NOT NULL)
+         OR b=520
+         OR (d>=76.0 AND d<77.0 AND d NOT NULL)
+         OR a=53
+         OR ((a BETWEEN 91 AND 93) AND a!=92)
+         OR b=938
+         OR (g='jihgfed' AND f GLOB 'vwxyz*')
+         OR c=25025
+  }
+} {43 53 63 73 74 75 76 91 93 scan 0 sort 0}
+do_test where7-2.845.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=583
+         OR b=894
+         OR c=26026
+         OR (d>=84.0 AND d<85.0 AND d NOT NULL)
+  }
+} {53 76 77 78 84 scan 0 sort 0}
+do_test where7-2.845.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=583
+         OR b=894
+         OR c=26026
+         OR (d>=84.0 AND d<85.0 AND d NOT NULL)
+  }
+} {53 76 77 78 84 scan 0 sort 0}
+do_test where7-2.846.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f='abcdefghi'
+         OR (g='edcbazy' AND f GLOB 'wxyza*')
+  }
+} {26 52 78 100 scan 0 sort 0}
+do_test where7-2.846.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f='abcdefghi'
+         OR (g='edcbazy' AND f GLOB 'wxyza*')
+  }
+} {26 52 78 100 scan 0 sort 0}
+do_test where7-2.847.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=1103
+         OR b=638
+         OR b=792
+         OR b=1034
+         OR b=308
+         OR f='nopqrstuv'
+         OR b=264
+         OR ((a BETWEEN 33 AND 35) AND a!=34)
+         OR (d>=58.0 AND d<59.0 AND d NOT NULL)
+  }
+} {13 24 28 33 35 39 58 65 72 91 94 scan 0 sort 0}
+do_test where7-2.847.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=1103
+         OR b=638
+         OR b=792
+         OR b=1034
+         OR b=308
+         OR f='nopqrstuv'
+         OR b=264
+         OR ((a BETWEEN 33 AND 35) AND a!=34)
+         OR (d>=58.0 AND d<59.0 AND d NOT NULL)
+  }
+} {13 24 28 33 35 39 58 65 72 91 94 scan 0 sort 0}
+do_test where7-2.848.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f='defghijkl'
+         OR b=814
+         OR f='yzabcdefg'
+  }
+} {3 24 29 50 55 74 76 81 scan 0 sort 0}
+do_test where7-2.848.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f='defghijkl'
+         OR b=814
+         OR f='yzabcdefg'
+  }
+} {3 24 29 50 55 74 76 81 scan 0 sort 0}
+do_test where7-2.849.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=209
+         OR b=806
+         OR (d>=8.0 AND d<9.0 AND d NOT NULL)
+         OR (g='vutsrqp' AND f GLOB 'rstuv*')
+  }
+} {8 17 19 scan 0 sort 0}
+do_test where7-2.849.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=209
+         OR b=806
+         OR (d>=8.0 AND d<9.0 AND d NOT NULL)
+         OR (g='vutsrqp' AND f GLOB 'rstuv*')
+  }
+} {8 17 19 scan 0 sort 0}
+do_test where7-2.850.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f='opqrstuvw'
+         OR b=69
+         OR b=366
+  }
+} {14 40 66 92 scan 0 sort 0}
+do_test where7-2.850.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f='opqrstuvw'
+         OR b=69
+         OR b=366
+  }
+} {14 40 66 92 scan 0 sort 0}
+do_test where7-2.851.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=4.0 AND d<5.0 AND d NOT NULL)
+         OR a=45
+         OR (g='kjihgfe' AND f GLOB 'uvwxy*')
+         OR a=69
+         OR ((a BETWEEN 69 AND 71) AND a!=70)
+         OR (g='kjihgfe' AND f GLOB 'uvwxy*')
+  }
+} {4 45 69 71 72 scan 0 sort 0}
+do_test where7-2.851.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=4.0 AND d<5.0 AND d NOT NULL)
+         OR a=45
+         OR (g='kjihgfe' AND f GLOB 'uvwxy*')
+         OR a=69
+         OR ((a BETWEEN 69 AND 71) AND a!=70)
+         OR (g='kjihgfe' AND f GLOB 'uvwxy*')
+  }
+} {4 45 69 71 72 scan 0 sort 0}
+do_test where7-2.852.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=9009
+         OR (d>=85.0 AND d<86.0 AND d NOT NULL)
+         OR (g='wvutsrq' AND f GLOB 'klmno*')
+         OR (d>=9.0 AND d<10.0 AND d NOT NULL)
+         OR (g='lkjihgf' AND f GLOB 'pqrst*')
+  }
+} {9 10 25 26 27 67 85 scan 0 sort 0}
+do_test where7-2.852.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=9009
+         OR (d>=85.0 AND d<86.0 AND d NOT NULL)
+         OR (g='wvutsrq' AND f GLOB 'klmno*')
+         OR (d>=9.0 AND d<10.0 AND d NOT NULL)
+         OR (g='lkjihgf' AND f GLOB 'pqrst*')
+  }
+} {9 10 25 26 27 67 85 scan 0 sort 0}
+do_test where7-2.853.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=98
+         OR (d>=100.0 AND d<101.0 AND d NOT NULL)
+         OR (d>=63.0 AND d<64.0 AND d NOT NULL)
+         OR a=47
+         OR c=24024
+         OR a=27
+         OR (g='ponmlkj' AND f GLOB 'tuvwx*')
+         OR (d>=20.0 AND d<21.0 AND d NOT NULL)
+  }
+} {20 27 45 47 63 70 71 72 98 100 scan 0 sort 0}
+do_test where7-2.853.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=98
+         OR (d>=100.0 AND d<101.0 AND d NOT NULL)
+         OR (d>=63.0 AND d<64.0 AND d NOT NULL)
+         OR a=47
+         OR c=24024
+         OR a=27
+         OR (g='ponmlkj' AND f GLOB 'tuvwx*')
+         OR (d>=20.0 AND d<21.0 AND d NOT NULL)
+  }
+} {20 27 45 47 63 70 71 72 98 100 scan 0 sort 0}
+do_test where7-2.854.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='utsrqpo' AND f GLOB 'wxyza*')
+         OR (g='utsrqpo' AND f GLOB 'wxyza*')
+         OR (g='ponmlkj' AND f GLOB 'stuvw*')
+         OR a=19
+  }
+} {19 22 44 scan 0 sort 0}
+do_test where7-2.854.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='utsrqpo' AND f GLOB 'wxyza*')
+         OR (g='utsrqpo' AND f GLOB 'wxyza*')
+         OR (g='ponmlkj' AND f GLOB 'stuvw*')
+         OR a=19
+  }
+} {19 22 44 scan 0 sort 0}
+do_test where7-2.855.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=12012
+         OR (d>=80.0 AND d<81.0 AND d NOT NULL)
+         OR ((a BETWEEN 16 AND 18) AND a!=17)
+         OR (g='edcbazy' AND f GLOB 'uvwxy*')
+  }
+} {16 18 34 35 36 80 98 scan 0 sort 0}
+do_test where7-2.855.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=12012
+         OR (d>=80.0 AND d<81.0 AND d NOT NULL)
+         OR ((a BETWEEN 16 AND 18) AND a!=17)
+         OR (g='edcbazy' AND f GLOB 'uvwxy*')
+  }
+} {16 18 34 35 36 80 98 scan 0 sort 0}
+do_test where7-2.856.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 38 AND 40) AND a!=39)
+         OR (f GLOB '?nopq*' AND f GLOB 'mnop*')
+         OR b=429
+         OR f='jklmnopqr'
+         OR (d>=48.0 AND d<49.0 AND d NOT NULL)
+         OR ((a BETWEEN 77 AND 79) AND a!=78)
+  }
+} {9 12 35 38 39 40 48 61 64 77 79 87 90 scan 0 sort 0}
+do_test where7-2.856.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 38 AND 40) AND a!=39)
+         OR (f GLOB '?nopq*' AND f GLOB 'mnop*')
+         OR b=429
+         OR f='jklmnopqr'
+         OR (d>=48.0 AND d<49.0 AND d NOT NULL)
+         OR ((a BETWEEN 77 AND 79) AND a!=78)
+  }
+} {9 12 35 38 39 40 48 61 64 77 79 87 90 scan 0 sort 0}
+do_test where7-2.857.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='lkjihgf' AND f GLOB 'mnopq*')
+         OR b=190
+  }
+} {64 scan 0 sort 0}
+do_test where7-2.857.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='lkjihgf' AND f GLOB 'mnopq*')
+         OR b=190
+  }
+} {64 scan 0 sort 0}
+do_test where7-2.858.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='jihgfed' AND f GLOB 'yzabc*')
+         OR b=674
+         OR b=289
+  }
+} {76 scan 0 sort 0}
+do_test where7-2.858.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='jihgfed' AND f GLOB 'yzabc*')
+         OR b=674
+         OR b=289
+  }
+} {76 scan 0 sort 0}
+do_test where7-2.859.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=17
+         OR b=539
+         OR (g='ponmlkj' AND f GLOB 'vwxyz*')
+         OR (g='utsrqpo' AND f GLOB 'vwxyz*')
+  }
+} {17 21 47 49 scan 0 sort 0}
+do_test where7-2.859.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=17
+         OR b=539
+         OR (g='ponmlkj' AND f GLOB 'vwxyz*')
+         OR (g='utsrqpo' AND f GLOB 'vwxyz*')
+  }
+} {17 21 47 49 scan 0 sort 0}
+do_test where7-2.860.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=924
+         OR c=27027
+         OR ((a BETWEEN 65 AND 67) AND a!=66)
+  }
+} {65 67 79 80 81 84 scan 0 sort 0}
+do_test where7-2.860.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=924
+         OR c=27027
+         OR ((a BETWEEN 65 AND 67) AND a!=66)
+  }
+} {65 67 79 80 81 84 scan 0 sort 0}
+do_test where7-2.861.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=564
+         OR f='mnopqrstu'
+         OR ((a BETWEEN 28 AND 30) AND a!=29)
+         OR b=1103
+  }
+} {12 28 30 38 64 90 scan 0 sort 0}
+do_test where7-2.861.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=564
+         OR f='mnopqrstu'
+         OR ((a BETWEEN 28 AND 30) AND a!=29)
+         OR b=1103
+  }
+} {12 28 30 38 64 90 scan 0 sort 0}
+do_test where7-2.862.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=231
+         OR (d>=24.0 AND d<25.0 AND d NOT NULL)
+         OR a=38
+         OR a=4
+         OR b=784
+  }
+} {4 21 24 38 scan 0 sort 0}
+do_test where7-2.862.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=231
+         OR (d>=24.0 AND d<25.0 AND d NOT NULL)
+         OR a=38
+         OR a=4
+         OR b=784
+  }
+} {4 21 24 38 scan 0 sort 0}
+do_test where7-2.863.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f='ghijklmno'
+         OR a=26
+         OR (g='kjihgfe' AND f GLOB 'qrstu*')
+         OR a=81
+         OR (d>=3.0 AND d<4.0 AND d NOT NULL)
+         OR ((a BETWEEN 28 AND 30) AND a!=29)
+         OR b=275
+         OR (g='hgfedcb' AND f GLOB 'jklmn*')
+         OR b=311
+         OR b=894
+         OR b=872
+  }
+} {3 6 25 26 28 30 32 58 68 81 84 87 scan 0 sort 0}
+do_test where7-2.863.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f='ghijklmno'
+         OR a=26
+         OR (g='kjihgfe' AND f GLOB 'qrstu*')
+         OR a=81
+         OR (d>=3.0 AND d<4.0 AND d NOT NULL)
+         OR ((a BETWEEN 28 AND 30) AND a!=29)
+         OR b=275
+         OR (g='hgfedcb' AND f GLOB 'jklmn*')
+         OR b=311
+         OR b=894
+         OR b=872
+  }
+} {3 6 25 26 28 30 32 58 68 81 84 87 scan 0 sort 0}
+do_test where7-2.864.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=91
+         OR b=619
+  }
+} {91 scan 0 sort 0}
+do_test where7-2.864.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=91
+         OR b=619
+  }
+} {91 scan 0 sort 0}
+do_test where7-2.865.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=4.0 AND d<5.0 AND d NOT NULL)
+         OR a=85
+         OR f IS NULL
+         OR ((a BETWEEN 49 AND 51) AND a!=50)
+         OR ((a BETWEEN 66 AND 68) AND a!=67)
+         OR b=154
+         OR ((a BETWEEN 40 AND 42) AND a!=41)
+         OR ((a BETWEEN 87 AND 89) AND a!=88)
+         OR (d>=25.0 AND d<26.0 AND d NOT NULL)
+  }
+} {4 14 25 40 42 49 51 66 68 85 87 89 scan 0 sort 0}
+do_test where7-2.865.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=4.0 AND d<5.0 AND d NOT NULL)
+         OR a=85
+         OR f IS NULL
+         OR ((a BETWEEN 49 AND 51) AND a!=50)
+         OR ((a BETWEEN 66 AND 68) AND a!=67)
+         OR b=154
+         OR ((a BETWEEN 40 AND 42) AND a!=41)
+         OR ((a BETWEEN 87 AND 89) AND a!=88)
+         OR (d>=25.0 AND d<26.0 AND d NOT NULL)
+  }
+} {4 14 25 40 42 49 51 66 68 85 87 89 scan 0 sort 0}
+do_test where7-2.866.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=44
+         OR b=55
+         OR a=30
+         OR (f GLOB '?uvwx*' AND f GLOB 'tuvw*')
+         OR 1000000<b
+         OR a=24
+         OR b=1089
+         OR (d>=75.0 AND d<76.0 AND d NOT NULL)
+         OR (g='rqponml' AND f GLOB 'hijkl*')
+  }
+} {5 19 24 30 33 44 45 71 75 97 99 scan 0 sort 0}
+do_test where7-2.866.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=44
+         OR b=55
+         OR a=30
+         OR (f GLOB '?uvwx*' AND f GLOB 'tuvw*')
+         OR 1000000<b
+         OR a=24
+         OR b=1089
+         OR (d>=75.0 AND d<76.0 AND d NOT NULL)
+         OR (g='rqponml' AND f GLOB 'hijkl*')
+  }
+} {5 19 24 30 33 44 45 71 75 97 99 scan 0 sort 0}
+do_test where7-2.867.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=16.0 AND d<17.0 AND d NOT NULL)
+         OR ((a BETWEEN 80 AND 82) AND a!=81)
+         OR b=36
+         OR ((a BETWEEN 33 AND 35) AND a!=34)
+  }
+} {16 33 35 80 82 scan 0 sort 0}
+do_test where7-2.867.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=16.0 AND d<17.0 AND d NOT NULL)
+         OR ((a BETWEEN 80 AND 82) AND a!=81)
+         OR b=36
+         OR ((a BETWEEN 33 AND 35) AND a!=34)
+  }
+} {16 33 35 80 82 scan 0 sort 0}
+do_test where7-2.868.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=97.0 AND d<98.0 AND d NOT NULL)
+         OR (d>=35.0 AND d<36.0 AND d NOT NULL)
+         OR c=26026
+         OR ((a BETWEEN 37 AND 39) AND a!=38)
+         OR a=56
+         OR b=506
+         OR b=781
+         OR (d>=28.0 AND d<29.0 AND d NOT NULL)
+  }
+} {28 35 37 39 46 56 71 76 77 78 97 scan 0 sort 0}
+do_test where7-2.868.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=97.0 AND d<98.0 AND d NOT NULL)
+         OR (d>=35.0 AND d<36.0 AND d NOT NULL)
+         OR c=26026
+         OR ((a BETWEEN 37 AND 39) AND a!=38)
+         OR a=56
+         OR b=506
+         OR b=781
+         OR (d>=28.0 AND d<29.0 AND d NOT NULL)
+  }
+} {28 35 37 39 46 56 71 76 77 78 97 scan 0 sort 0}
+do_test where7-2.869.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='edcbazy' AND f GLOB 'uvwxy*')
+         OR ((a BETWEEN 25 AND 27) AND a!=26)
+         OR (g='qponmlk' AND f GLOB 'nopqr*')
+         OR ((a BETWEEN 89 AND 91) AND a!=90)
+         OR f='xyzabcdef'
+         OR b=517
+         OR (g='jihgfed' AND f GLOB 'yzabc*')
+         OR (g='kjihgfe' AND f GLOB 'qrstu*')
+  }
+} {23 25 27 39 47 49 68 75 76 89 91 98 scan 0 sort 0}
+do_test where7-2.869.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='edcbazy' AND f GLOB 'uvwxy*')
+         OR ((a BETWEEN 25 AND 27) AND a!=26)
+         OR (g='qponmlk' AND f GLOB 'nopqr*')
+         OR ((a BETWEEN 89 AND 91) AND a!=90)
+         OR f='xyzabcdef'
+         OR b=517
+         OR (g='jihgfed' AND f GLOB 'yzabc*')
+         OR (g='kjihgfe' AND f GLOB 'qrstu*')
+  }
+} {23 25 27 39 47 49 68 75 76 89 91 98 scan 0 sort 0}
+do_test where7-2.870.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=54
+         OR a=59
+  }
+} {54 59 scan 0 sort 0}
+do_test where7-2.870.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=54
+         OR a=59
+  }
+} {54 59 scan 0 sort 0}
+do_test where7-2.871.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='tsrqpon' AND f GLOB 'yzabc*')
+         OR b=762
+         OR (g='onmlkji' AND f GLOB 'wxyza*')
+         OR a=25
+         OR ((a BETWEEN 65 AND 67) AND a!=66)
+  }
+} {24 25 48 65 67 scan 0 sort 0}
+do_test where7-2.871.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='tsrqpon' AND f GLOB 'yzabc*')
+         OR b=762
+         OR (g='onmlkji' AND f GLOB 'wxyza*')
+         OR a=25
+         OR ((a BETWEEN 65 AND 67) AND a!=66)
+  }
+} {24 25 48 65 67 scan 0 sort 0}
+do_test where7-2.872.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=59.0 AND d<60.0 AND d NOT NULL)
+         OR ((a BETWEEN 14 AND 16) AND a!=15)
+         OR b=839
+         OR f='defghijkl'
+         OR (d>=95.0 AND d<96.0 AND d NOT NULL)
+         OR (g='mlkjihg' AND f GLOB 'ijklm*')
+         OR (d>=52.0 AND d<53.0 AND d NOT NULL)
+         OR (g='hgfedcb' AND f GLOB 'hijkl*')
+         OR b=498
+  }
+} {3 14 16 29 52 55 59 60 81 85 95 scan 0 sort 0}
+do_test where7-2.872.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=59.0 AND d<60.0 AND d NOT NULL)
+         OR ((a BETWEEN 14 AND 16) AND a!=15)
+         OR b=839
+         OR f='defghijkl'
+         OR (d>=95.0 AND d<96.0 AND d NOT NULL)
+         OR (g='mlkjihg' AND f GLOB 'ijklm*')
+         OR (d>=52.0 AND d<53.0 AND d NOT NULL)
+         OR (g='hgfedcb' AND f GLOB 'hijkl*')
+         OR b=498
+  }
+} {3 14 16 29 52 55 59 60 81 85 95 scan 0 sort 0}
+do_test where7-2.873.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=256
+         OR c=19019
+         OR a=54
+         OR (d>=46.0 AND d<47.0 AND d NOT NULL)
+         OR b=498
+         OR b=77
+  }
+} {7 46 54 55 56 57 scan 0 sort 0}
+do_test where7-2.873.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=256
+         OR c=19019
+         OR a=54
+         OR (d>=46.0 AND d<47.0 AND d NOT NULL)
+         OR b=498
+         OR b=77
+  }
+} {7 46 54 55 56 57 scan 0 sort 0}
+do_test where7-2.874.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='mlkjihg' AND f GLOB 'jklmn*')
+         OR b=256
+         OR b=586
+         OR a=74
+         OR b=113
+         OR (d>=99.0 AND d<100.0 AND d NOT NULL)
+         OR b=495
+  }
+} {45 61 74 99 scan 0 sort 0}
+do_test where7-2.874.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='mlkjihg' AND f GLOB 'jklmn*')
+         OR b=256
+         OR b=586
+         OR a=74
+         OR b=113
+         OR (d>=99.0 AND d<100.0 AND d NOT NULL)
+         OR b=495
+  }
+} {45 61 74 99 scan 0 sort 0}
+do_test where7-2.875.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=12
+         OR a=50
+         OR (d>=33.0 AND d<34.0 AND d NOT NULL)
+         OR ((a BETWEEN 66 AND 68) AND a!=67)
+  }
+} {12 33 50 66 68 scan 0 sort 0}
+do_test where7-2.875.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=12
+         OR a=50
+         OR (d>=33.0 AND d<34.0 AND d NOT NULL)
+         OR ((a BETWEEN 66 AND 68) AND a!=67)
+  }
+} {12 33 50 66 68 scan 0 sort 0}
+do_test where7-2.876.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=308
+         OR (d>=73.0 AND d<74.0 AND d NOT NULL)
+         OR (g='nmlkjih' AND f GLOB 'bcdef*')
+         OR a=83
+         OR c=23023
+         OR (d>=57.0 AND d<58.0 AND d NOT NULL)
+         OR (g='lkjihgf' AND f GLOB 'nopqr*')
+         OR a=58
+         OR ((a BETWEEN 17 AND 19) AND a!=18)
+         OR (g='srqponm' AND f GLOB 'efghi*')
+         OR c=4004
+  }
+} {10 11 12 17 19 28 30 53 57 58 65 67 68 69 73 83 scan 0 sort 0}
+do_test where7-2.876.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=308
+         OR (d>=73.0 AND d<74.0 AND d NOT NULL)
+         OR (g='nmlkjih' AND f GLOB 'bcdef*')
+         OR a=83
+         OR c=23023
+         OR (d>=57.0 AND d<58.0 AND d NOT NULL)
+         OR (g='lkjihgf' AND f GLOB 'nopqr*')
+         OR a=58
+         OR ((a BETWEEN 17 AND 19) AND a!=18)
+         OR (g='srqponm' AND f GLOB 'efghi*')
+         OR c=4004
+  }
+} {10 11 12 17 19 28 30 53 57 58 65 67 68 69 73 83 scan 0 sort 0}
+do_test where7-2.877.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=476
+         OR a=26
+         OR (d>=87.0 AND d<88.0 AND d NOT NULL)
+         OR b=762
+         OR b=157
+         OR (d>=17.0 AND d<18.0 AND d NOT NULL)
+         OR (g='nmlkjih' AND f GLOB 'cdefg*')
+  }
+} {17 26 54 87 scan 0 sort 0}
+do_test where7-2.877.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=476
+         OR a=26
+         OR (d>=87.0 AND d<88.0 AND d NOT NULL)
+         OR b=762
+         OR b=157
+         OR (d>=17.0 AND d<18.0 AND d NOT NULL)
+         OR (g='nmlkjih' AND f GLOB 'cdefg*')
+  }
+} {17 26 54 87 scan 0 sort 0}
+do_test where7-2.878.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=77.0 AND d<78.0 AND d NOT NULL)
+         OR a=1
+         OR ((a BETWEEN 93 AND 95) AND a!=94)
+         OR b=278
+         OR (g='xwvutsr' AND f GLOB 'defgh*')
+         OR f='qrstuvwxy'
+         OR (g='onmlkji' AND f GLOB 'abcde*')
+         OR ((a BETWEEN 82 AND 84) AND a!=83)
+         OR (g='edcbazy' AND f GLOB 'uvwxy*')
+         OR (g='jihgfed' AND f GLOB 'wxyza*')
+         OR (d>=72.0 AND d<73.0 AND d NOT NULL)
+  }
+} {1 3 16 42 52 68 72 74 77 82 84 93 94 95 98 scan 0 sort 0}
+do_test where7-2.878.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=77.0 AND d<78.0 AND d NOT NULL)
+         OR a=1
+         OR ((a BETWEEN 93 AND 95) AND a!=94)
+         OR b=278
+         OR (g='xwvutsr' AND f GLOB 'defgh*')
+         OR f='qrstuvwxy'
+         OR (g='onmlkji' AND f GLOB 'abcde*')
+         OR ((a BETWEEN 82 AND 84) AND a!=83)
+         OR (g='edcbazy' AND f GLOB 'uvwxy*')
+         OR (g='jihgfed' AND f GLOB 'wxyza*')
+         OR (d>=72.0 AND d<73.0 AND d NOT NULL)
+  }
+} {1 3 16 42 52 68 72 74 77 82 84 93 94 95 98 scan 0 sort 0}
+do_test where7-2.879.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=124
+         OR (d>=92.0 AND d<93.0 AND d NOT NULL)
+         OR ((a BETWEEN 41 AND 43) AND a!=42)
+         OR (d>=96.0 AND d<97.0 AND d NOT NULL)
+         OR b=759
+         OR (f GLOB '?nopq*' AND f GLOB 'mnop*')
+         OR ((a BETWEEN 45 AND 47) AND a!=46)
+         OR (g='kjihgfe' AND f GLOB 'uvwxy*')
+  }
+} {12 38 41 43 45 47 64 69 72 90 92 96 scan 0 sort 0}
+do_test where7-2.879.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=124
+         OR (d>=92.0 AND d<93.0 AND d NOT NULL)
+         OR ((a BETWEEN 41 AND 43) AND a!=42)
+         OR (d>=96.0 AND d<97.0 AND d NOT NULL)
+         OR b=759
+         OR (f GLOB '?nopq*' AND f GLOB 'mnop*')
+         OR ((a BETWEEN 45 AND 47) AND a!=46)
+         OR (g='kjihgfe' AND f GLOB 'uvwxy*')
+  }
+} {12 38 41 43 45 47 64 69 72 90 92 96 scan 0 sort 0}
+do_test where7-2.880.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=872
+         OR b=267
+         OR b=814
+         OR b=99
+         OR c<=10
+         OR ((a BETWEEN 8 AND 10) AND a!=9)
+         OR b=44
+         OR f='zabcdefgh'
+         OR b=979
+         OR (g='rqponml' AND f GLOB 'hijkl*')
+  }
+} {4 8 9 10 25 33 51 74 77 89 scan 0 sort 0}
+do_test where7-2.880.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=872
+         OR b=267
+         OR b=814
+         OR b=99
+         OR c<=10
+         OR ((a BETWEEN 8 AND 10) AND a!=9)
+         OR b=44
+         OR f='zabcdefgh'
+         OR b=979
+         OR (g='rqponml' AND f GLOB 'hijkl*')
+  }
+} {4 8 9 10 25 33 51 74 77 89 scan 0 sort 0}
+do_test where7-2.881.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=26.0 AND d<27.0 AND d NOT NULL)
+         OR f='xyzabcdef'
+  }
+} {23 26 49 75 scan 0 sort 0}
+do_test where7-2.881.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=26.0 AND d<27.0 AND d NOT NULL)
+         OR f='xyzabcdef'
+  }
+} {23 26 49 75 scan 0 sort 0}
+do_test where7-2.882.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=487
+         OR b=355
+         OR c=9009
+         OR (d>=8.0 AND d<9.0 AND d NOT NULL)
+         OR ((a BETWEEN 32 AND 34) AND a!=33)
+         OR b=113
+         OR ((a BETWEEN 24 AND 26) AND a!=25)
+         OR a=90
+         OR (d>=66.0 AND d<67.0 AND d NOT NULL)
+         OR (g='hgfedcb' AND f GLOB 'jklmn*')
+         OR f='nopqrstuv'
+  }
+} {8 13 24 25 26 27 32 34 39 65 66 87 90 91 scan 0 sort 0}
+do_test where7-2.882.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=487
+         OR b=355
+         OR c=9009
+         OR (d>=8.0 AND d<9.0 AND d NOT NULL)
+         OR ((a BETWEEN 32 AND 34) AND a!=33)
+         OR b=113
+         OR ((a BETWEEN 24 AND 26) AND a!=25)
+         OR a=90
+         OR (d>=66.0 AND d<67.0 AND d NOT NULL)
+         OR (g='hgfedcb' AND f GLOB 'jklmn*')
+         OR f='nopqrstuv'
+  }
+} {8 13 24 25 26 27 32 34 39 65 66 87 90 91 scan 0 sort 0}
+do_test where7-2.883.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=34.0 AND d<35.0 AND d NOT NULL)
+         OR b=275
+  }
+} {25 34 scan 0 sort 0}
+do_test where7-2.883.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=34.0 AND d<35.0 AND d NOT NULL)
+         OR b=275
+  }
+} {25 34 scan 0 sort 0}
+do_test where7-2.884.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=355
+         OR a=44
+         OR b=374
+         OR c=25025
+         OR b=198
+         OR ((a BETWEEN 4 AND 6) AND a!=5)
+         OR ((a BETWEEN 69 AND 71) AND a!=70)
+         OR d<0.0
+         OR (g='qponmlk' AND f GLOB 'pqrst*')
+         OR c=9009
+  }
+} {4 6 18 25 26 27 34 41 44 69 71 73 74 75 scan 0 sort 0}
+do_test where7-2.884.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=355
+         OR a=44
+         OR b=374
+         OR c=25025
+         OR b=198
+         OR ((a BETWEEN 4 AND 6) AND a!=5)
+         OR ((a BETWEEN 69 AND 71) AND a!=70)
+         OR d<0.0
+         OR (g='qponmlk' AND f GLOB 'pqrst*')
+         OR c=9009
+  }
+} {4 6 18 25 26 27 34 41 44 69 71 73 74 75 scan 0 sort 0}
+do_test where7-2.885.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (f GLOB '?uvwx*' AND f GLOB 'tuvw*')
+         OR b=814
+         OR (d>=54.0 AND d<55.0 AND d NOT NULL)
+  }
+} {19 45 54 71 74 97 scan 0 sort 0}
+do_test where7-2.885.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (f GLOB '?uvwx*' AND f GLOB 'tuvw*')
+         OR b=814
+         OR (d>=54.0 AND d<55.0 AND d NOT NULL)
+  }
+} {19 45 54 71 74 97 scan 0 sort 0}
+do_test where7-2.886.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='lkjihgf' AND f GLOB 'mnopq*')
+         OR b=333
+         OR b=275
+  }
+} {25 64 scan 0 sort 0}
+do_test where7-2.886.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='lkjihgf' AND f GLOB 'mnopq*')
+         OR b=333
+         OR b=275
+  }
+} {25 64 scan 0 sort 0}
+do_test where7-2.887.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='ihgfedc' AND f GLOB 'efghi*')
+         OR ((a BETWEEN 33 AND 35) AND a!=34)
+  }
+} {33 35 82 scan 0 sort 0}
+do_test where7-2.887.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='ihgfedc' AND f GLOB 'efghi*')
+         OR ((a BETWEEN 33 AND 35) AND a!=34)
+  }
+} {33 35 82 scan 0 sort 0}
+do_test where7-2.888.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 11 AND 13) AND a!=12)
+         OR b=253
+         OR (f GLOB '?pqrs*' AND f GLOB 'opqr*')
+         OR b=286
+         OR (d>=10.0 AND d<11.0 AND d NOT NULL)
+  }
+} {10 11 13 14 23 26 40 66 92 scan 0 sort 0}
+do_test where7-2.888.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 11 AND 13) AND a!=12)
+         OR b=253
+         OR (f GLOB '?pqrs*' AND f GLOB 'opqr*')
+         OR b=286
+         OR (d>=10.0 AND d<11.0 AND d NOT NULL)
+  }
+} {10 11 13 14 23 26 40 66 92 scan 0 sort 0}
+do_test where7-2.889.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=15.0 AND d<16.0 AND d NOT NULL)
+         OR (g='gfedcba' AND f GLOB 'mnopq*')
+         OR ((a BETWEEN 26 AND 28) AND a!=27)
+         OR b=421
+         OR (g='xwvutsr' AND f GLOB 'fghij*')
+         OR f='ijklmnopq'
+         OR b=891
+         OR b=1056
+  }
+} {5 8 15 26 28 34 60 81 86 90 96 scan 0 sort 0}
+do_test where7-2.889.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=15.0 AND d<16.0 AND d NOT NULL)
+         OR (g='gfedcba' AND f GLOB 'mnopq*')
+         OR ((a BETWEEN 26 AND 28) AND a!=27)
+         OR b=421
+         OR (g='xwvutsr' AND f GLOB 'fghij*')
+         OR f='ijklmnopq'
+         OR b=891
+         OR b=1056
+  }
+} {5 8 15 26 28 34 60 81 86 90 96 scan 0 sort 0}
+do_test where7-2.890.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f='fghijklmn'
+         OR (g='qponmlk' AND f GLOB 'nopqr*')
+         OR (g='edcbazy' AND f GLOB 'vwxyz*')
+         OR b=671
+         OR (g='xwvutsr' AND f GLOB 'hijkl*')
+  }
+} {5 7 31 39 57 61 83 99 scan 0 sort 0}
+do_test where7-2.890.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f='fghijklmn'
+         OR (g='qponmlk' AND f GLOB 'nopqr*')
+         OR (g='edcbazy' AND f GLOB 'vwxyz*')
+         OR b=671
+         OR (g='xwvutsr' AND f GLOB 'hijkl*')
+  }
+} {5 7 31 39 57 61 83 99 scan 0 sort 0}
+do_test where7-2.891.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='lkjihgf' AND f GLOB 'lmnop*')
+         OR (g='srqponm' AND f GLOB 'fghij*')
+         OR ((a BETWEEN 4 AND 6) AND a!=5)
+         OR (g='kjihgfe' AND f GLOB 'qrstu*')
+         OR (d>=11.0 AND d<12.0 AND d NOT NULL)
+  }
+} {4 6 11 31 63 68 scan 0 sort 0}
+do_test where7-2.891.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='lkjihgf' AND f GLOB 'lmnop*')
+         OR (g='srqponm' AND f GLOB 'fghij*')
+         OR ((a BETWEEN 4 AND 6) AND a!=5)
+         OR (g='kjihgfe' AND f GLOB 'qrstu*')
+         OR (d>=11.0 AND d<12.0 AND d NOT NULL)
+  }
+} {4 6 11 31 63 68 scan 0 sort 0}
+do_test where7-2.892.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=11011
+         OR a=20
+         OR b=432
+         OR b=410
+         OR a=86
+         OR (d>=89.0 AND d<90.0 AND d NOT NULL)
+         OR b=638
+         OR ((a BETWEEN 58 AND 60) AND a!=59)
+         OR b=190
+  }
+} {20 31 32 33 58 60 86 89 scan 0 sort 0}
+do_test where7-2.892.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=11011
+         OR a=20
+         OR b=432
+         OR b=410
+         OR a=86
+         OR (d>=89.0 AND d<90.0 AND d NOT NULL)
+         OR b=638
+         OR ((a BETWEEN 58 AND 60) AND a!=59)
+         OR b=190
+  }
+} {20 31 32 33 58 60 86 89 scan 0 sort 0}
+do_test where7-2.893.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=88
+         OR ((a BETWEEN 42 AND 44) AND a!=43)
+         OR a=76
+         OR b=69
+         OR b=847
+         OR b=275
+  }
+} {8 25 42 44 76 77 scan 0 sort 0}
+do_test where7-2.893.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=88
+         OR ((a BETWEEN 42 AND 44) AND a!=43)
+         OR a=76
+         OR b=69
+         OR b=847
+         OR b=275
+  }
+} {8 25 42 44 76 77 scan 0 sort 0}
+do_test where7-2.894.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=781
+         OR b=77
+         OR b=58
+         OR ((a BETWEEN 67 AND 69) AND a!=68)
+  }
+} {7 67 69 71 scan 0 sort 0}
+do_test where7-2.894.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=781
+         OR b=77
+         OR b=58
+         OR ((a BETWEEN 67 AND 69) AND a!=68)
+  }
+} {7 67 69 71 scan 0 sort 0}
+do_test where7-2.895.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 67 AND 69) AND a!=68)
+         OR (d>=69.0 AND d<70.0 AND d NOT NULL)
+         OR (g='utsrqpo' AND f GLOB 'uvwxy*')
+         OR a=46
+         OR b=187
+         OR ((a BETWEEN 69 AND 71) AND a!=70)
+         OR (g='onmlkji' AND f GLOB 'yzabc*')
+  }
+} {17 20 46 50 67 69 71 scan 0 sort 0}
+do_test where7-2.895.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 67 AND 69) AND a!=68)
+         OR (d>=69.0 AND d<70.0 AND d NOT NULL)
+         OR (g='utsrqpo' AND f GLOB 'uvwxy*')
+         OR a=46
+         OR b=187
+         OR ((a BETWEEN 69 AND 71) AND a!=70)
+         OR (g='onmlkji' AND f GLOB 'yzabc*')
+  }
+} {17 20 46 50 67 69 71 scan 0 sort 0}
+do_test where7-2.896.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=97.0 AND d<98.0 AND d NOT NULL)
+         OR a=99
+         OR c=3003
+         OR (d>=57.0 AND d<58.0 AND d NOT NULL)
+         OR b=300
+         OR b=718
+         OR c>=34035
+         OR b=264
+  }
+} {7 8 9 24 57 97 99 scan 0 sort 0}
+do_test where7-2.896.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=97.0 AND d<98.0 AND d NOT NULL)
+         OR a=99
+         OR c=3003
+         OR (d>=57.0 AND d<58.0 AND d NOT NULL)
+         OR b=300
+         OR b=718
+         OR c>=34035
+         OR b=264
+  }
+} {7 8 9 24 57 97 99 scan 0 sort 0}
+do_test where7-2.897.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=872
+         OR b=209
+         OR ((a BETWEEN 65 AND 67) AND a!=66)
+         OR b=355
+         OR b=729
+         OR ((a BETWEEN 81 AND 83) AND a!=82)
+         OR a=58
+         OR (f GLOB '?pqrs*' AND f GLOB 'opqr*')
+         OR b=608
+  }
+} {14 19 40 58 65 66 67 81 83 92 scan 0 sort 0}
+do_test where7-2.897.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=872
+         OR b=209
+         OR ((a BETWEEN 65 AND 67) AND a!=66)
+         OR b=355
+         OR b=729
+         OR ((a BETWEEN 81 AND 83) AND a!=82)
+         OR a=58
+         OR (f GLOB '?pqrs*' AND f GLOB 'opqr*')
+         OR b=608
+  }
+} {14 19 40 58 65 66 67 81 83 92 scan 0 sort 0}
+do_test where7-2.898.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=29029
+         OR f='efghijklm'
+         OR (d>=48.0 AND d<49.0 AND d NOT NULL)
+         OR a=26
+         OR (f GLOB '?efgh*' AND f GLOB 'defg*')
+  }
+} {3 4 26 29 30 48 55 56 81 82 85 86 87 scan 0 sort 0}
+do_test where7-2.898.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=29029
+         OR f='efghijklm'
+         OR (d>=48.0 AND d<49.0 AND d NOT NULL)
+         OR a=26
+         OR (f GLOB '?efgh*' AND f GLOB 'defg*')
+  }
+} {3 4 26 29 30 48 55 56 81 82 85 86 87 scan 0 sort 0}
+do_test where7-2.899.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=59
+         OR (g='wvutsrq' AND f GLOB 'mnopq*')
+         OR a=7
+         OR (g='tsrqpon' AND f GLOB 'abcde*')
+         OR b=762
+         OR (f GLOB '?pqrs*' AND f GLOB 'opqr*')
+  }
+} {7 12 14 26 40 59 66 92 scan 0 sort 0}
+do_test where7-2.899.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=59
+         OR (g='wvutsrq' AND f GLOB 'mnopq*')
+         OR a=7
+         OR (g='tsrqpon' AND f GLOB 'abcde*')
+         OR b=762
+         OR (f GLOB '?pqrs*' AND f GLOB 'opqr*')
+  }
+} {7 12 14 26 40 59 66 92 scan 0 sort 0}
+do_test where7-2.900.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='gfedcba' AND f GLOB 'nopqr*')
+         OR b=539
+         OR b=399
+  }
+} {49 91 scan 0 sort 0}
+do_test where7-2.900.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='gfedcba' AND f GLOB 'nopqr*')
+         OR b=539
+         OR b=399
+  }
+} {49 91 scan 0 sort 0}
+do_test where7-2.901.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 71 AND 73) AND a!=72)
+         OR ((a BETWEEN 96 AND 98) AND a!=97)
+         OR a=92
+  }
+} {71 73 92 96 98 scan 0 sort 0}
+do_test where7-2.901.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 71 AND 73) AND a!=72)
+         OR ((a BETWEEN 96 AND 98) AND a!=97)
+         OR a=92
+  }
+} {71 73 92 96 98 scan 0 sort 0}
+do_test where7-2.902.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (f GLOB '?klmn*' AND f GLOB 'jklm*')
+         OR (g='rqponml' AND f GLOB 'klmno*')
+         OR f='lmnopqrst'
+         OR (g='nmlkjih' AND f GLOB 'fghij*')
+  }
+} {9 11 35 36 37 57 61 63 87 89 scan 0 sort 0}
+do_test where7-2.902.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (f GLOB '?klmn*' AND f GLOB 'jklm*')
+         OR (g='rqponml' AND f GLOB 'klmno*')
+         OR f='lmnopqrst'
+         OR (g='nmlkjih' AND f GLOB 'fghij*')
+  }
+} {9 11 35 36 37 57 61 63 87 89 scan 0 sort 0}
+do_test where7-2.903.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 69 AND 71) AND a!=70)
+         OR ((a BETWEEN 91 AND 93) AND a!=92)
+         OR b=652
+  }
+} {69 71 91 93 scan 0 sort 0}
+do_test where7-2.903.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 69 AND 71) AND a!=70)
+         OR ((a BETWEEN 91 AND 93) AND a!=92)
+         OR b=652
+  }
+} {69 71 91 93 scan 0 sort 0}
+do_test where7-2.904.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=1067
+         OR ((a BETWEEN 53 AND 55) AND a!=54)
+         OR (g='jihgfed' AND f GLOB 'vwxyz*')
+         OR (d>=18.0 AND d<19.0 AND d NOT NULL)
+         OR (d>=54.0 AND d<55.0 AND d NOT NULL)
+         OR b=520
+         OR b=399
+         OR b=209
+         OR a=68
+         OR (g='fedcbaz' AND f GLOB 'qrstu*')
+  }
+} {18 19 53 54 55 68 73 94 97 scan 0 sort 0}
+do_test where7-2.904.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=1067
+         OR ((a BETWEEN 53 AND 55) AND a!=54)
+         OR (g='jihgfed' AND f GLOB 'vwxyz*')
+         OR (d>=18.0 AND d<19.0 AND d NOT NULL)
+         OR (d>=54.0 AND d<55.0 AND d NOT NULL)
+         OR b=520
+         OR b=399
+         OR b=209
+         OR a=68
+         OR (g='fedcbaz' AND f GLOB 'qrstu*')
+  }
+} {18 19 53 54 55 68 73 94 97 scan 0 sort 0}
+do_test where7-2.905.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=79.0 AND d<80.0 AND d NOT NULL)
+         OR a=57
+         OR b=55
+         OR (d>=34.0 AND d<35.0 AND d NOT NULL)
+         OR ((a BETWEEN 20 AND 22) AND a!=21)
+         OR (g='rqponml' AND f GLOB 'lmnop*')
+         OR ((a BETWEEN 0 AND 2) AND a!=1)
+         OR ((a BETWEEN 21 AND 23) AND a!=22)
+  }
+} {2 5 20 21 22 23 34 37 57 79 scan 0 sort 0}
+do_test where7-2.905.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=79.0 AND d<80.0 AND d NOT NULL)
+         OR a=57
+         OR b=55
+         OR (d>=34.0 AND d<35.0 AND d NOT NULL)
+         OR ((a BETWEEN 20 AND 22) AND a!=21)
+         OR (g='rqponml' AND f GLOB 'lmnop*')
+         OR ((a BETWEEN 0 AND 2) AND a!=1)
+         OR ((a BETWEEN 21 AND 23) AND a!=22)
+  }
+} {2 5 20 21 22 23 34 37 57 79 scan 0 sort 0}
+do_test where7-2.906.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 21 AND 23) AND a!=22)
+         OR a=2
+         OR b=784
+         OR ((a BETWEEN 21 AND 23) AND a!=22)
+         OR (g='ihgfedc' AND f GLOB 'defgh*')
+         OR b=850
+  }
+} {2 21 23 81 scan 0 sort 0}
+do_test where7-2.906.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 21 AND 23) AND a!=22)
+         OR a=2
+         OR b=784
+         OR ((a BETWEEN 21 AND 23) AND a!=22)
+         OR (g='ihgfedc' AND f GLOB 'defgh*')
+         OR b=850
+  }
+} {2 21 23 81 scan 0 sort 0}
+do_test where7-2.907.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=51.0 AND d<52.0 AND d NOT NULL)
+         OR (d>=45.0 AND d<46.0 AND d NOT NULL)
+         OR b=748
+         OR b=209
+         OR a=100
+  }
+} {19 45 51 68 100 scan 0 sort 0}
+do_test where7-2.907.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=51.0 AND d<52.0 AND d NOT NULL)
+         OR (d>=45.0 AND d<46.0 AND d NOT NULL)
+         OR b=748
+         OR b=209
+         OR a=100
+  }
+} {19 45 51 68 100 scan 0 sort 0}
+do_test where7-2.908.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='jihgfed' AND f GLOB 'zabcd*')
+         OR a=18
+         OR a=30
+         OR ((a BETWEEN 9 AND 11) AND a!=10)
+         OR ((a BETWEEN 84 AND 86) AND a!=85)
+         OR ((a BETWEEN 8 AND 10) AND a!=9)
+         OR b=792
+         OR (f GLOB '?mnop*' AND f GLOB 'lmno*')
+         OR ((a BETWEEN 19 AND 21) AND a!=20)
+         OR c=26026
+         OR (g='rqponml' AND f GLOB 'hijkl*')
+  }
+} {8 9 10 11 18 19 21 30 33 37 63 72 76 77 78 84 86 89 scan 0 sort 0}
+do_test where7-2.908.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='jihgfed' AND f GLOB 'zabcd*')
+         OR a=18
+         OR a=30
+         OR ((a BETWEEN 9 AND 11) AND a!=10)
+         OR ((a BETWEEN 84 AND 86) AND a!=85)
+         OR ((a BETWEEN 8 AND 10) AND a!=9)
+         OR b=792
+         OR (f GLOB '?mnop*' AND f GLOB 'lmno*')
+         OR ((a BETWEEN 19 AND 21) AND a!=20)
+         OR c=26026
+         OR (g='rqponml' AND f GLOB 'hijkl*')
+  }
+} {8 9 10 11 18 19 21 30 33 37 63 72 76 77 78 84 86 89 scan 0 sort 0}
+do_test where7-2.909.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='vutsrqp' AND f GLOB 'qrstu*')
+         OR b=968
+         OR ((a BETWEEN 63 AND 65) AND a!=64)
+         OR (f GLOB '?xyza*' AND f GLOB 'wxyz*')
+         OR (g='jihgfed' AND f GLOB 'wxyza*')
+         OR (d>=72.0 AND d<73.0 AND d NOT NULL)
+         OR a=78
+         OR ((a BETWEEN 90 AND 92) AND a!=91)
+  }
+} {16 22 48 63 65 72 74 78 88 90 92 100 scan 0 sort 0}
+do_test where7-2.909.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='vutsrqp' AND f GLOB 'qrstu*')
+         OR b=968
+         OR ((a BETWEEN 63 AND 65) AND a!=64)
+         OR (f GLOB '?xyza*' AND f GLOB 'wxyz*')
+         OR (g='jihgfed' AND f GLOB 'wxyza*')
+         OR (d>=72.0 AND d<73.0 AND d NOT NULL)
+         OR a=78
+         OR ((a BETWEEN 90 AND 92) AND a!=91)
+  }
+} {16 22 48 63 65 72 74 78 88 90 92 100 scan 0 sort 0}
+do_test where7-2.910.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=10010
+         OR f='pqrstuvwx'
+  }
+} {15 28 29 30 41 67 93 scan 0 sort 0}
+do_test where7-2.910.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=10010
+         OR f='pqrstuvwx'
+  }
+} {15 28 29 30 41 67 93 scan 0 sort 0}
+do_test where7-2.911.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=86
+         OR a=10
+         OR b=528
+         OR b=253
+         OR a=80
+         OR a=87
+         OR (d>=37.0 AND d<38.0 AND d NOT NULL)
+  }
+} {10 23 37 48 80 86 87 scan 0 sort 0}
+do_test where7-2.911.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=86
+         OR a=10
+         OR b=528
+         OR b=253
+         OR a=80
+         OR a=87
+         OR (d>=37.0 AND d<38.0 AND d NOT NULL)
+  }
+} {10 23 37 48 80 86 87 scan 0 sort 0}
+do_test where7-2.912.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=42.0 AND d<43.0 AND d NOT NULL)
+         OR b=825
+         OR a=100
+         OR (d>=77.0 AND d<78.0 AND d NOT NULL)
+         OR a=60
+  }
+} {42 60 75 77 100 scan 0 sort 0}
+do_test where7-2.912.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=42.0 AND d<43.0 AND d NOT NULL)
+         OR b=825
+         OR a=100
+         OR (d>=77.0 AND d<78.0 AND d NOT NULL)
+         OR a=60
+  }
+} {42 60 75 77 100 scan 0 sort 0}
+do_test where7-2.913.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=94.0 AND d<95.0 AND d NOT NULL)
+         OR b=883
+         OR (d>=35.0 AND d<36.0 AND d NOT NULL)
+         OR (d>=3.0 AND d<4.0 AND d NOT NULL)
+         OR (d>=78.0 AND d<79.0 AND d NOT NULL)
+         OR (d>=45.0 AND d<46.0 AND d NOT NULL)
+         OR a=81
+         OR (f GLOB '?fghi*' AND f GLOB 'efgh*')
+         OR f='mnopqrstu'
+  }
+} {3 4 12 30 35 38 45 56 64 78 81 82 90 94 scan 0 sort 0}
+do_test where7-2.913.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=94.0 AND d<95.0 AND d NOT NULL)
+         OR b=883
+         OR (d>=35.0 AND d<36.0 AND d NOT NULL)
+         OR (d>=3.0 AND d<4.0 AND d NOT NULL)
+         OR (d>=78.0 AND d<79.0 AND d NOT NULL)
+         OR (d>=45.0 AND d<46.0 AND d NOT NULL)
+         OR a=81
+         OR (f GLOB '?fghi*' AND f GLOB 'efgh*')
+         OR f='mnopqrstu'
+  }
+} {3 4 12 30 35 38 45 56 64 78 81 82 90 94 scan 0 sort 0}
+do_test where7-2.914.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=443
+         OR ((a BETWEEN 14 AND 16) AND a!=15)
+         OR b=663
+         OR b=905
+         OR (d>=96.0 AND d<97.0 AND d NOT NULL)
+         OR b=883
+         OR c=22022
+         OR b=638
+  }
+} {14 16 58 64 65 66 96 scan 0 sort 0}
+do_test where7-2.914.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=443
+         OR ((a BETWEEN 14 AND 16) AND a!=15)
+         OR b=663
+         OR b=905
+         OR (d>=96.0 AND d<97.0 AND d NOT NULL)
+         OR b=883
+         OR c=22022
+         OR b=638
+  }
+} {14 16 58 64 65 66 96 scan 0 sort 0}
+do_test where7-2.915.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 84 AND 86) AND a!=85)
+         OR b=234
+         OR a=53
+         OR ((a BETWEEN 20 AND 22) AND a!=21)
+         OR ((a BETWEEN 27 AND 29) AND a!=28)
+         OR b=319
+         OR (g='qponmlk' AND f GLOB 'opqrs*')
+         OR ((a BETWEEN 14 AND 16) AND a!=15)
+  }
+} {14 16 20 22 27 29 40 53 84 86 scan 0 sort 0}
+do_test where7-2.915.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 84 AND 86) AND a!=85)
+         OR b=234
+         OR a=53
+         OR ((a BETWEEN 20 AND 22) AND a!=21)
+         OR ((a BETWEEN 27 AND 29) AND a!=28)
+         OR b=319
+         OR (g='qponmlk' AND f GLOB 'opqrs*')
+         OR ((a BETWEEN 14 AND 16) AND a!=15)
+  }
+} {14 16 20 22 27 29 40 53 84 86 scan 0 sort 0}
+do_test where7-2.916.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=179
+         OR ((a BETWEEN 95 AND 97) AND a!=96)
+         OR a=46
+         OR (g='kjihgfe' AND f GLOB 'uvwxy*')
+         OR ((a BETWEEN 53 AND 55) AND a!=54)
+         OR a=25
+         OR (d>=5.0 AND d<6.0 AND d NOT NULL)
+         OR (d>=13.0 AND d<14.0 AND d NOT NULL)
+         OR f='opqrstuvw'
+         OR (d>=53.0 AND d<54.0 AND d NOT NULL)
+         OR b=938
+  }
+} {5 13 14 25 40 46 53 55 66 72 92 95 97 scan 0 sort 0}
+do_test where7-2.916.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=179
+         OR ((a BETWEEN 95 AND 97) AND a!=96)
+         OR a=46
+         OR (g='kjihgfe' AND f GLOB 'uvwxy*')
+         OR ((a BETWEEN 53 AND 55) AND a!=54)
+         OR a=25
+         OR (d>=5.0 AND d<6.0 AND d NOT NULL)
+         OR (d>=13.0 AND d<14.0 AND d NOT NULL)
+         OR f='opqrstuvw'
+         OR (d>=53.0 AND d<54.0 AND d NOT NULL)
+         OR b=938
+  }
+} {5 13 14 25 40 46 53 55 66 72 92 95 97 scan 0 sort 0}
+do_test where7-2.917.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='nmlkjih' AND f GLOB 'fghij*')
+         OR (d>=15.0 AND d<16.0 AND d NOT NULL)
+  }
+} {15 57 scan 0 sort 0}
+do_test where7-2.917.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='nmlkjih' AND f GLOB 'fghij*')
+         OR (d>=15.0 AND d<16.0 AND d NOT NULL)
+  }
+} {15 57 scan 0 sort 0}
+do_test where7-2.918.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=748
+         OR (g='utsrqpo' AND f GLOB 'wxyza*')
+         OR a=32
+         OR b=110
+         OR b=297
+         OR (d>=13.0 AND d<14.0 AND d NOT NULL)
+         OR ((a BETWEEN 60 AND 62) AND a!=61)
+         OR f='ghijklmno'
+         OR b=473
+         OR b=135
+  }
+} {6 10 13 22 27 32 43 58 60 62 68 84 scan 0 sort 0}
+do_test where7-2.918.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=748
+         OR (g='utsrqpo' AND f GLOB 'wxyza*')
+         OR a=32
+         OR b=110
+         OR b=297
+         OR (d>=13.0 AND d<14.0 AND d NOT NULL)
+         OR ((a BETWEEN 60 AND 62) AND a!=61)
+         OR f='ghijklmno'
+         OR b=473
+         OR b=135
+  }
+} {6 10 13 22 27 32 43 58 60 62 68 84 scan 0 sort 0}
+do_test where7-2.919.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=33.0 AND d<34.0 AND d NOT NULL)
+         OR b=905
+         OR a=97
+         OR (g='hgfedcb' AND f GLOB 'hijkl*')
+         OR c=27027
+         OR f='bcdefghij'
+         OR (d>=54.0 AND d<55.0 AND d NOT NULL)
+         OR (d>=25.0 AND d<26.0 AND d NOT NULL)
+         OR ((a BETWEEN 38 AND 40) AND a!=39)
+         OR (f GLOB '?fghi*' AND f GLOB 'efgh*')
+  }
+} {1 4 25 27 30 33 38 40 53 54 56 79 80 81 82 85 97 scan 0 sort 0}
+do_test where7-2.919.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=33.0 AND d<34.0 AND d NOT NULL)
+         OR b=905
+         OR a=97
+         OR (g='hgfedcb' AND f GLOB 'hijkl*')
+         OR c=27027
+         OR f='bcdefghij'
+         OR (d>=54.0 AND d<55.0 AND d NOT NULL)
+         OR (d>=25.0 AND d<26.0 AND d NOT NULL)
+         OR ((a BETWEEN 38 AND 40) AND a!=39)
+         OR (f GLOB '?fghi*' AND f GLOB 'efgh*')
+  }
+} {1 4 25 27 30 33 38 40 53 54 56 79 80 81 82 85 97 scan 0 sort 0}
+do_test where7-2.920.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 64 AND 66) AND a!=65)
+         OR ((a BETWEEN 90 AND 92) AND a!=91)
+  }
+} {64 66 90 92 scan 0 sort 0}
+do_test where7-2.920.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 64 AND 66) AND a!=65)
+         OR ((a BETWEEN 90 AND 92) AND a!=91)
+  }
+} {64 66 90 92 scan 0 sort 0}
+do_test where7-2.921.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=594
+         OR b=80
+         OR (g='tsrqpon' AND f GLOB 'bcdef*')
+         OR (g='qponmlk' AND f GLOB 'mnopq*')
+         OR b=421
+         OR b=418
+         OR b=828
+         OR a=88
+         OR (g='tsrqpon' AND f GLOB 'xyzab*')
+         OR (d>=60.0 AND d<61.0 AND d NOT NULL)
+  }
+} {23 27 38 54 60 88 scan 0 sort 0}
+do_test where7-2.921.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=594
+         OR b=80
+         OR (g='tsrqpon' AND f GLOB 'bcdef*')
+         OR (g='qponmlk' AND f GLOB 'mnopq*')
+         OR b=421
+         OR b=418
+         OR b=828
+         OR a=88
+         OR (g='tsrqpon' AND f GLOB 'xyzab*')
+         OR (d>=60.0 AND d<61.0 AND d NOT NULL)
+  }
+} {23 27 38 54 60 88 scan 0 sort 0}
+do_test where7-2.922.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=17.0 AND d<18.0 AND d NOT NULL)
+         OR (g='jihgfed' AND f GLOB 'xyzab*')
+         OR b=366
+         OR (d>=28.0 AND d<29.0 AND d NOT NULL)
+         OR c=16016
+         OR (g='edcbazy' AND f GLOB 'wxyza*')
+         OR c=9009
+  }
+} {17 25 26 27 28 46 47 48 75 100 scan 0 sort 0}
+do_test where7-2.922.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=17.0 AND d<18.0 AND d NOT NULL)
+         OR (g='jihgfed' AND f GLOB 'xyzab*')
+         OR b=366
+         OR (d>=28.0 AND d<29.0 AND d NOT NULL)
+         OR c=16016
+         OR (g='edcbazy' AND f GLOB 'wxyza*')
+         OR c=9009
+  }
+} {17 25 26 27 28 46 47 48 75 100 scan 0 sort 0}
+do_test where7-2.923.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=33
+         OR f='qrstuvwxy'
+         OR (g='utsrqpo' AND f GLOB 'uvwxy*')
+         OR b=858
+  }
+} {3 16 20 42 68 78 94 scan 0 sort 0}
+do_test where7-2.923.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=33
+         OR f='qrstuvwxy'
+         OR (g='utsrqpo' AND f GLOB 'uvwxy*')
+         OR b=858
+  }
+} {3 16 20 42 68 78 94 scan 0 sort 0}
+do_test where7-2.924.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=861
+         OR (f GLOB '?xyza*' AND f GLOB 'wxyz*')
+         OR (d>=29.0 AND d<30.0 AND d NOT NULL)
+         OR b=682
+         OR ((a BETWEEN 93 AND 95) AND a!=94)
+         OR b=286
+  }
+} {22 26 29 48 62 74 93 95 100 scan 0 sort 0}
+do_test where7-2.924.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=861
+         OR (f GLOB '?xyza*' AND f GLOB 'wxyz*')
+         OR (d>=29.0 AND d<30.0 AND d NOT NULL)
+         OR b=682
+         OR ((a BETWEEN 93 AND 95) AND a!=94)
+         OR b=286
+  }
+} {22 26 29 48 62 74 93 95 100 scan 0 sort 0}
+do_test where7-2.925.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=740
+         OR ((a BETWEEN 27 AND 29) AND a!=28)
+         OR a=88
+  }
+} {27 29 88 scan 0 sort 0}
+do_test where7-2.925.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=740
+         OR ((a BETWEEN 27 AND 29) AND a!=28)
+         OR a=88
+  }
+} {27 29 88 scan 0 sort 0}
+do_test where7-2.926.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f='abcdefghi'
+         OR c=9009
+         OR b=663
+         OR (g='wvutsrq' AND f GLOB 'klmno*')
+         OR b=91
+  }
+} {10 25 26 27 52 78 scan 0 sort 0}
+do_test where7-2.926.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f='abcdefghi'
+         OR c=9009
+         OR b=663
+         OR (g='wvutsrq' AND f GLOB 'klmno*')
+         OR b=91
+  }
+} {10 25 26 27 52 78 scan 0 sort 0}
+do_test where7-2.927.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='kjihgfe' AND f GLOB 'qrstu*')
+         OR ((a BETWEEN 29 AND 31) AND a!=30)
+         OR (f GLOB '?opqr*' AND f GLOB 'nopq*')
+         OR b=1015
+         OR (g='qponmlk' AND f GLOB 'qrstu*')
+         OR b=916
+         OR (d>=31.0 AND d<32.0 AND d NOT NULL)
+         OR b=69
+         OR (g='hgfedcb' AND f GLOB 'fghij*')
+  }
+} {13 29 31 39 42 65 68 83 91 scan 0 sort 0}
+do_test where7-2.927.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='kjihgfe' AND f GLOB 'qrstu*')
+         OR ((a BETWEEN 29 AND 31) AND a!=30)
+         OR (f GLOB '?opqr*' AND f GLOB 'nopq*')
+         OR b=1015
+         OR (g='qponmlk' AND f GLOB 'qrstu*')
+         OR b=916
+         OR (d>=31.0 AND d<32.0 AND d NOT NULL)
+         OR b=69
+         OR (g='hgfedcb' AND f GLOB 'fghij*')
+  }
+} {13 29 31 39 42 65 68 83 91 scan 0 sort 0}
+do_test where7-2.928.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=88
+         OR a=1
+         OR f='uvwxyzabc'
+         OR b=498
+         OR (d>=20.0 AND d<21.0 AND d NOT NULL)
+         OR a=63
+         OR f='mnopqrstu'
+         OR (g='mlkjihg' AND f GLOB 'ijklm*')
+         OR b=495
+         OR a=35
+         OR a=22
+  }
+} {1 12 20 22 35 38 45 46 60 63 64 72 88 90 98 scan 0 sort 0}
+do_test where7-2.928.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=88
+         OR a=1
+         OR f='uvwxyzabc'
+         OR b=498
+         OR (d>=20.0 AND d<21.0 AND d NOT NULL)
+         OR a=63
+         OR f='mnopqrstu'
+         OR (g='mlkjihg' AND f GLOB 'ijklm*')
+         OR b=495
+         OR a=35
+         OR a=22
+  }
+} {1 12 20 22 35 38 45 46 60 63 64 72 88 90 98 scan 0 sort 0}
+do_test where7-2.929.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=869
+         OR (g='rqponml' AND f GLOB 'jklmn*')
+         OR b=289
+         OR a=62
+         OR ((a BETWEEN 9 AND 11) AND a!=10)
+  }
+} {9 11 35 62 79 scan 0 sort 0}
+do_test where7-2.929.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=869
+         OR (g='rqponml' AND f GLOB 'jklmn*')
+         OR b=289
+         OR a=62
+         OR ((a BETWEEN 9 AND 11) AND a!=10)
+  }
+} {9 11 35 62 79 scan 0 sort 0}
+do_test where7-2.930.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 22 AND 24) AND a!=23)
+         OR b=542
+         OR ((a BETWEEN 19 AND 21) AND a!=20)
+         OR a=7
+         OR f='klmnopqrs'
+  }
+} {7 10 19 21 22 24 36 62 88 scan 0 sort 0}
+do_test where7-2.930.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 22 AND 24) AND a!=23)
+         OR b=542
+         OR ((a BETWEEN 19 AND 21) AND a!=20)
+         OR a=7
+         OR f='klmnopqrs'
+  }
+} {7 10 19 21 22 24 36 62 88 scan 0 sort 0}
+do_test where7-2.931.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 57 AND 59) AND a!=58)
+         OR b=1078
+         OR ((a BETWEEN 21 AND 23) AND a!=22)
+         OR (g='mlkjihg' AND f GLOB 'ijklm*')
+         OR (d>=20.0 AND d<21.0 AND d NOT NULL)
+         OR b=429
+  }
+} {20 21 23 39 57 59 60 98 scan 0 sort 0}
+do_test where7-2.931.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 57 AND 59) AND a!=58)
+         OR b=1078
+         OR ((a BETWEEN 21 AND 23) AND a!=22)
+         OR (g='mlkjihg' AND f GLOB 'ijklm*')
+         OR (d>=20.0 AND d<21.0 AND d NOT NULL)
+         OR b=429
+  }
+} {20 21 23 39 57 59 60 98 scan 0 sort 0}
+do_test where7-2.932.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=82.0 AND d<83.0 AND d NOT NULL)
+         OR b=264
+         OR ((a BETWEEN 85 AND 87) AND a!=86)
+         OR b=1048
+         OR a=15
+  }
+} {15 24 82 85 87 scan 0 sort 0}
+do_test where7-2.932.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=82.0 AND d<83.0 AND d NOT NULL)
+         OR b=264
+         OR ((a BETWEEN 85 AND 87) AND a!=86)
+         OR b=1048
+         OR a=15
+  }
+} {15 24 82 85 87 scan 0 sort 0}
+do_test where7-2.933.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=93
+         OR f='ijklmnopq'
+         OR f='mnopqrstu'
+         OR ((a BETWEEN 67 AND 69) AND a!=68)
+  }
+} {8 12 34 38 60 64 67 69 86 90 93 scan 0 sort 0}
+do_test where7-2.933.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=93
+         OR f='ijklmnopq'
+         OR f='mnopqrstu'
+         OR ((a BETWEEN 67 AND 69) AND a!=68)
+  }
+} {8 12 34 38 60 64 67 69 86 90 93 scan 0 sort 0}
+do_test where7-2.934.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=56.0 AND d<57.0 AND d NOT NULL)
+         OR b=858
+         OR a=58
+         OR (g='onmlkji' AND f GLOB 'xyzab*')
+         OR c=21021
+         OR ((a BETWEEN 45 AND 47) AND a!=46)
+         OR b=616
+         OR b=784
+         OR b=55
+  }
+} {5 45 47 49 56 58 61 62 63 78 scan 0 sort 0}
+do_test where7-2.934.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=56.0 AND d<57.0 AND d NOT NULL)
+         OR b=858
+         OR a=58
+         OR (g='onmlkji' AND f GLOB 'xyzab*')
+         OR c=21021
+         OR ((a BETWEEN 45 AND 47) AND a!=46)
+         OR b=616
+         OR b=784
+         OR b=55
+  }
+} {5 45 47 49 56 58 61 62 63 78 scan 0 sort 0}
+do_test where7-2.935.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=682
+         OR b=99
+         OR (f GLOB '?defg*' AND f GLOB 'cdef*')
+         OR b=531
+  }
+} {2 9 28 54 62 80 scan 0 sort 0}
+do_test where7-2.935.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=682
+         OR b=99
+         OR (f GLOB '?defg*' AND f GLOB 'cdef*')
+         OR b=531
+  }
+} {2 9 28 54 62 80 scan 0 sort 0}
+do_test where7-2.936.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 56 AND 58) AND a!=57)
+         OR (g='kjihgfe' AND f GLOB 'stuvw*')
+         OR (f GLOB '?jklm*' AND f GLOB 'ijkl*')
+         OR b=726
+         OR a=79
+         OR a=47
+         OR b=212
+         OR (f GLOB '?bcde*' AND f GLOB 'abcd*')
+         OR c=8008
+  }
+} {8 22 23 24 26 34 47 52 56 58 60 66 70 78 79 86 scan 0 sort 0}
+do_test where7-2.936.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 56 AND 58) AND a!=57)
+         OR (g='kjihgfe' AND f GLOB 'stuvw*')
+         OR (f GLOB '?jklm*' AND f GLOB 'ijkl*')
+         OR b=726
+         OR a=79
+         OR a=47
+         OR b=212
+         OR (f GLOB '?bcde*' AND f GLOB 'abcd*')
+         OR c=8008
+  }
+} {8 22 23 24 26 34 47 52 56 58 60 66 70 78 79 86 scan 0 sort 0}
+do_test where7-2.937.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f='uvwxyzabc'
+         OR ((a BETWEEN 60 AND 62) AND a!=61)
+         OR a=5
+         OR b=33
+         OR (f GLOB '?yzab*' AND f GLOB 'xyza*')
+         OR a=59
+         OR b=44
+         OR (d>=14.0 AND d<15.0 AND d NOT NULL)
+         OR (d>=59.0 AND d<60.0 AND d NOT NULL)
+  }
+} {3 4 5 14 20 23 46 49 59 60 62 72 75 98 scan 0 sort 0}
+do_test where7-2.937.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f='uvwxyzabc'
+         OR ((a BETWEEN 60 AND 62) AND a!=61)
+         OR a=5
+         OR b=33
+         OR (f GLOB '?yzab*' AND f GLOB 'xyza*')
+         OR a=59
+         OR b=44
+         OR (d>=14.0 AND d<15.0 AND d NOT NULL)
+         OR (d>=59.0 AND d<60.0 AND d NOT NULL)
+  }
+} {3 4 5 14 20 23 46 49 59 60 62 72 75 98 scan 0 sort 0}
+do_test where7-2.938.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=564
+         OR (d>=93.0 AND d<94.0 AND d NOT NULL)
+         OR b=451
+         OR b=330
+         OR a=47
+         OR ((a BETWEEN 17 AND 19) AND a!=18)
+  }
+} {17 19 30 41 47 93 scan 0 sort 0}
+do_test where7-2.938.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=564
+         OR (d>=93.0 AND d<94.0 AND d NOT NULL)
+         OR b=451
+         OR b=330
+         OR a=47
+         OR ((a BETWEEN 17 AND 19) AND a!=18)
+  }
+} {17 19 30 41 47 93 scan 0 sort 0}
+do_test where7-2.939.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=40
+         OR b=333
+  }
+} {40 scan 0 sort 0}
+do_test where7-2.939.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=40
+         OR b=333
+  }
+} {40 scan 0 sort 0}
+do_test where7-2.940.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=924
+         OR ((a BETWEEN 6 AND 8) AND a!=7)
+         OR (d>=36.0 AND d<37.0 AND d NOT NULL)
+         OR (d>=40.0 AND d<41.0 AND d NOT NULL)
+         OR a=100
+         OR c=15015
+         OR (d>=82.0 AND d<83.0 AND d NOT NULL)
+         OR (d>=2.0 AND d<3.0 AND d NOT NULL)
+  }
+} {2 6 8 36 40 43 44 45 82 84 100 scan 0 sort 0}
+do_test where7-2.940.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=924
+         OR ((a BETWEEN 6 AND 8) AND a!=7)
+         OR (d>=36.0 AND d<37.0 AND d NOT NULL)
+         OR (d>=40.0 AND d<41.0 AND d NOT NULL)
+         OR a=100
+         OR c=15015
+         OR (d>=82.0 AND d<83.0 AND d NOT NULL)
+         OR (d>=2.0 AND d<3.0 AND d NOT NULL)
+  }
+} {2 6 8 36 40 43 44 45 82 84 100 scan 0 sort 0}
+do_test where7-2.941.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=63.0 AND d<64.0 AND d NOT NULL)
+         OR (d>=44.0 AND d<45.0 AND d NOT NULL)
+         OR (d>=36.0 AND d<37.0 AND d NOT NULL)
+  }
+} {36 44 63 scan 0 sort 0}
+do_test where7-2.941.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=63.0 AND d<64.0 AND d NOT NULL)
+         OR (d>=44.0 AND d<45.0 AND d NOT NULL)
+         OR (d>=36.0 AND d<37.0 AND d NOT NULL)
+  }
+} {36 44 63 scan 0 sort 0}
+do_test where7-2.942.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=58
+         OR ((a BETWEEN 7 AND 9) AND a!=8)
+         OR ((a BETWEEN 63 AND 65) AND a!=64)
+         OR a=31
+         OR f='tuvwxyzab'
+         OR b=341
+         OR b=47
+         OR ((a BETWEEN 95 AND 97) AND a!=96)
+         OR a=49
+         OR b=223
+         OR f='qrstuvwxy'
+  }
+} {7 9 16 19 31 42 45 49 63 65 68 71 94 95 97 scan 0 sort 0}
+do_test where7-2.942.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=58
+         OR ((a BETWEEN 7 AND 9) AND a!=8)
+         OR ((a BETWEEN 63 AND 65) AND a!=64)
+         OR a=31
+         OR f='tuvwxyzab'
+         OR b=341
+         OR b=47
+         OR ((a BETWEEN 95 AND 97) AND a!=96)
+         OR a=49
+         OR b=223
+         OR f='qrstuvwxy'
+  }
+} {7 9 16 19 31 42 45 49 63 65 68 71 94 95 97 scan 0 sort 0}
+do_test where7-2.943.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=96
+         OR (d>=23.0 AND d<24.0 AND d NOT NULL)
+         OR (g='ponmlkj' AND f GLOB 'vwxyz*')
+         OR (f GLOB '?fghi*' AND f GLOB 'efgh*')
+         OR ((a BETWEEN 37 AND 39) AND a!=38)
+         OR a=85
+         OR ((a BETWEEN 10 AND 12) AND a!=11)
+         OR c=11011
+         OR b=641
+         OR f='vwxyzabcd'
+         OR b=286
+  }
+} {4 10 12 21 23 26 30 31 32 33 37 39 47 56 73 82 85 96 99 scan 0 sort 0}
+do_test where7-2.943.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=96
+         OR (d>=23.0 AND d<24.0 AND d NOT NULL)
+         OR (g='ponmlkj' AND f GLOB 'vwxyz*')
+         OR (f GLOB '?fghi*' AND f GLOB 'efgh*')
+         OR ((a BETWEEN 37 AND 39) AND a!=38)
+         OR a=85
+         OR ((a BETWEEN 10 AND 12) AND a!=11)
+         OR c=11011
+         OR b=641
+         OR f='vwxyzabcd'
+         OR b=286
+  }
+} {4 10 12 21 23 26 30 31 32 33 37 39 47 56 73 82 85 96 99 scan 0 sort 0}
+do_test where7-2.944.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 3 AND 5) AND a!=4)
+         OR b=1012
+         OR a=7
+         OR b=773
+         OR a=1
+         OR b=726
+         OR (d>=99.0 AND d<100.0 AND d NOT NULL)
+         OR ((a BETWEEN 87 AND 89) AND a!=88)
+         OR b=110
+  }
+} {1 3 5 7 10 66 87 89 92 99 scan 0 sort 0}
+do_test where7-2.944.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 3 AND 5) AND a!=4)
+         OR b=1012
+         OR a=7
+         OR b=773
+         OR a=1
+         OR b=726
+         OR (d>=99.0 AND d<100.0 AND d NOT NULL)
+         OR ((a BETWEEN 87 AND 89) AND a!=88)
+         OR b=110
+  }
+} {1 3 5 7 10 66 87 89 92 99 scan 0 sort 0}
+do_test where7-2.945.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='xwvutsr' AND f GLOB 'hijkl*')
+         OR a=60
+         OR a=4
+         OR b=520
+         OR (g='ihgfedc' AND f GLOB 'bcdef*')
+         OR a=44
+         OR a=36
+         OR (d>=76.0 AND d<77.0 AND d NOT NULL)
+         OR (g='vutsrqp' AND f GLOB 'qrstu*')
+         OR b=715
+         OR (g='vutsrqp' AND f GLOB 'qrstu*')
+  }
+} {4 7 16 36 44 60 65 76 79 scan 0 sort 0}
+do_test where7-2.945.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='xwvutsr' AND f GLOB 'hijkl*')
+         OR a=60
+         OR a=4
+         OR b=520
+         OR (g='ihgfedc' AND f GLOB 'bcdef*')
+         OR a=44
+         OR a=36
+         OR (d>=76.0 AND d<77.0 AND d NOT NULL)
+         OR (g='vutsrqp' AND f GLOB 'qrstu*')
+         OR b=715
+         OR (g='vutsrqp' AND f GLOB 'qrstu*')
+  }
+} {4 7 16 36 44 60 65 76 79 scan 0 sort 0}
+do_test where7-2.946.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 3 AND 5) AND a!=4)
+         OR ((a BETWEEN 56 AND 58) AND a!=57)
+         OR (d>=15.0 AND d<16.0 AND d NOT NULL)
+         OR (d>=55.0 AND d<56.0 AND d NOT NULL)
+         OR (g='jihgfed' AND f GLOB 'yzabc*')
+         OR a=24
+         OR (d>=99.0 AND d<100.0 AND d NOT NULL)
+         OR (f GLOB '?bcde*' AND f GLOB 'abcd*')
+  }
+} {3 5 15 24 26 52 55 56 58 76 78 99 scan 0 sort 0}
+do_test where7-2.946.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 3 AND 5) AND a!=4)
+         OR ((a BETWEEN 56 AND 58) AND a!=57)
+         OR (d>=15.0 AND d<16.0 AND d NOT NULL)
+         OR (d>=55.0 AND d<56.0 AND d NOT NULL)
+         OR (g='jihgfed' AND f GLOB 'yzabc*')
+         OR a=24
+         OR (d>=99.0 AND d<100.0 AND d NOT NULL)
+         OR (f GLOB '?bcde*' AND f GLOB 'abcd*')
+  }
+} {3 5 15 24 26 52 55 56 58 76 78 99 scan 0 sort 0}
+do_test where7-2.947.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='utsrqpo' AND f GLOB 'vwxyz*')
+         OR b=132
+         OR f='ghijklmno'
+         OR b=740
+         OR (g='qponmlk' AND f GLOB 'mnopq*')
+         OR (g='tsrqpon' AND f GLOB 'abcde*')
+         OR b=1059
+  }
+} {6 12 21 26 32 38 58 84 scan 0 sort 0}
+do_test where7-2.947.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='utsrqpo' AND f GLOB 'vwxyz*')
+         OR b=132
+         OR f='ghijklmno'
+         OR b=740
+         OR (g='qponmlk' AND f GLOB 'mnopq*')
+         OR (g='tsrqpon' AND f GLOB 'abcde*')
+         OR b=1059
+  }
+} {6 12 21 26 32 38 58 84 scan 0 sort 0}
+do_test where7-2.948.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=28
+         OR b=927
+         OR b=520
+         OR (d>=53.0 AND d<54.0 AND d NOT NULL)
+         OR b=638
+         OR f='vwxyzabcd'
+  }
+} {21 28 47 53 58 73 99 scan 0 sort 0}
+do_test where7-2.948.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=28
+         OR b=927
+         OR b=520
+         OR (d>=53.0 AND d<54.0 AND d NOT NULL)
+         OR b=638
+         OR f='vwxyzabcd'
+  }
+} {21 28 47 53 58 73 99 scan 0 sort 0}
+do_test where7-2.949.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='nmlkjih' AND f GLOB 'cdefg*')
+         OR b=1026
+         OR (d>=1.0 AND d<2.0 AND d NOT NULL)
+         OR (g='wvutsrq' AND f GLOB 'lmnop*')
+         OR b=355
+         OR b=641
+         OR (d>=53.0 AND d<54.0 AND d NOT NULL)
+  }
+} {1 11 53 54 scan 0 sort 0}
+do_test where7-2.949.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='nmlkjih' AND f GLOB 'cdefg*')
+         OR b=1026
+         OR (d>=1.0 AND d<2.0 AND d NOT NULL)
+         OR (g='wvutsrq' AND f GLOB 'lmnop*')
+         OR b=355
+         OR b=641
+         OR (d>=53.0 AND d<54.0 AND d NOT NULL)
+  }
+} {1 11 53 54 scan 0 sort 0}
+do_test where7-2.950.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 46 AND 48) AND a!=47)
+         OR ((a BETWEEN 60 AND 62) AND a!=61)
+         OR b=641
+         OR a=3
+         OR a=35
+         OR (d>=81.0 AND d<82.0 AND d NOT NULL)
+         OR f='opqrstuvw'
+         OR a=41
+         OR a=83
+         OR (g='nmlkjih' AND f GLOB 'cdefg*')
+         OR b=751
+  }
+} {3 14 35 40 41 46 48 54 60 62 66 81 83 92 scan 0 sort 0}
+do_test where7-2.950.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 46 AND 48) AND a!=47)
+         OR ((a BETWEEN 60 AND 62) AND a!=61)
+         OR b=641
+         OR a=3
+         OR a=35
+         OR (d>=81.0 AND d<82.0 AND d NOT NULL)
+         OR f='opqrstuvw'
+         OR a=41
+         OR a=83
+         OR (g='nmlkjih' AND f GLOB 'cdefg*')
+         OR b=751
+  }
+} {3 14 35 40 41 46 48 54 60 62 66 81 83 92 scan 0 sort 0}
+do_test where7-2.951.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 3 AND 5) AND a!=4)
+         OR ((a BETWEEN 60 AND 62) AND a!=61)
+         OR c=15015
+         OR b=146
+         OR b=1092
+         OR (d>=60.0 AND d<61.0 AND d NOT NULL)
+  }
+} {3 5 43 44 45 60 62 scan 0 sort 0}
+do_test where7-2.951.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 3 AND 5) AND a!=4)
+         OR ((a BETWEEN 60 AND 62) AND a!=61)
+         OR c=15015
+         OR b=146
+         OR b=1092
+         OR (d>=60.0 AND d<61.0 AND d NOT NULL)
+  }
+} {3 5 43 44 45 60 62 scan 0 sort 0}
+do_test where7-2.952.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='qponmlk' AND f GLOB 'qrstu*')
+         OR f='bcdefghij'
+         OR f='hijklmnop'
+         OR a=65
+         OR f='ijklmnopq'
+         OR (d>=79.0 AND d<80.0 AND d NOT NULL)
+         OR g IS NULL
+         OR a=26
+         OR ((a BETWEEN 38 AND 40) AND a!=39)
+         OR a=9
+         OR (d>=32.0 AND d<33.0 AND d NOT NULL)
+  }
+} {1 7 8 9 26 27 32 33 34 38 40 42 53 59 60 65 79 85 86 scan 0 sort 0}
+do_test where7-2.952.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='qponmlk' AND f GLOB 'qrstu*')
+         OR f='bcdefghij'
+         OR f='hijklmnop'
+         OR a=65
+         OR f='ijklmnopq'
+         OR (d>=79.0 AND d<80.0 AND d NOT NULL)
+         OR g IS NULL
+         OR a=26
+         OR ((a BETWEEN 38 AND 40) AND a!=39)
+         OR a=9
+         OR (d>=32.0 AND d<33.0 AND d NOT NULL)
+  }
+} {1 7 8 9 26 27 32 33 34 38 40 42 53 59 60 65 79 85 86 scan 0 sort 0}
+do_test where7-2.953.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='jihgfed' AND f GLOB 'vwxyz*')
+         OR ((a BETWEEN 10 AND 12) AND a!=11)
+         OR ((a BETWEEN 79 AND 81) AND a!=80)
+         OR (g='kjihgfe' AND f GLOB 'stuvw*')
+         OR (g='qponmlk' AND f GLOB 'pqrst*')
+         OR b=1100
+         OR c=6006
+         OR c=4004
+         OR ((a BETWEEN 24 AND 26) AND a!=25)
+         OR c=33033
+  }
+} {10 11 12 16 17 18 24 26 41 70 73 79 81 97 98 99 100 scan 0 sort 0}
+do_test where7-2.953.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='jihgfed' AND f GLOB 'vwxyz*')
+         OR ((a BETWEEN 10 AND 12) AND a!=11)
+         OR ((a BETWEEN 79 AND 81) AND a!=80)
+         OR (g='kjihgfe' AND f GLOB 'stuvw*')
+         OR (g='qponmlk' AND f GLOB 'pqrst*')
+         OR b=1100
+         OR c=6006
+         OR c=4004
+         OR ((a BETWEEN 24 AND 26) AND a!=25)
+         OR c=33033
+  }
+} {10 11 12 16 17 18 24 26 41 70 73 79 81 97 98 99 100 scan 0 sort 0}
+do_test where7-2.954.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=17
+         OR ((a BETWEEN 95 AND 97) AND a!=96)
+  }
+} {17 95 97 scan 0 sort 0}
+do_test where7-2.954.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=17
+         OR ((a BETWEEN 95 AND 97) AND a!=96)
+  }
+} {17 95 97 scan 0 sort 0}
+do_test where7-2.955.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=3003
+         OR (d>=67.0 AND d<68.0 AND d NOT NULL)
+         OR a=93
+  }
+} {7 8 9 67 93 scan 0 sort 0}
+do_test where7-2.955.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=3003
+         OR (d>=67.0 AND d<68.0 AND d NOT NULL)
+         OR a=93
+  }
+} {7 8 9 67 93 scan 0 sort 0}
+do_test where7-2.956.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=42.0 AND d<43.0 AND d NOT NULL)
+         OR (g='ponmlkj' AND f GLOB 'stuvw*')
+         OR ((a BETWEEN 21 AND 23) AND a!=22)
+         OR (d>=12.0 AND d<13.0 AND d NOT NULL)
+         OR b=737
+  }
+} {12 21 23 42 44 67 scan 0 sort 0}
+do_test where7-2.956.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=42.0 AND d<43.0 AND d NOT NULL)
+         OR (g='ponmlkj' AND f GLOB 'stuvw*')
+         OR ((a BETWEEN 21 AND 23) AND a!=22)
+         OR (d>=12.0 AND d<13.0 AND d NOT NULL)
+         OR b=737
+  }
+} {12 21 23 42 44 67 scan 0 sort 0}
+do_test where7-2.957.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='rqponml' AND f GLOB 'klmno*')
+         OR ((a BETWEEN 5 AND 7) AND a!=6)
+  }
+} {5 7 36 scan 0 sort 0}
+do_test where7-2.957.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='rqponml' AND f GLOB 'klmno*')
+         OR ((a BETWEEN 5 AND 7) AND a!=6)
+  }
+} {5 7 36 scan 0 sort 0}
+do_test where7-2.958.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='hgfedcb' AND f GLOB 'hijkl*')
+         OR c=32032
+         OR f='opqrstuvw'
+         OR ((a BETWEEN 66 AND 68) AND a!=67)
+         OR ((a BETWEEN 49 AND 51) AND a!=50)
+         OR b=993
+  }
+} {14 40 49 51 66 68 85 92 94 95 96 scan 0 sort 0}
+do_test where7-2.958.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='hgfedcb' AND f GLOB 'hijkl*')
+         OR c=32032
+         OR f='opqrstuvw'
+         OR ((a BETWEEN 66 AND 68) AND a!=67)
+         OR ((a BETWEEN 49 AND 51) AND a!=50)
+         OR b=993
+  }
+} {14 40 49 51 66 68 85 92 94 95 96 scan 0 sort 0}
+do_test where7-2.959.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=12.0 AND d<13.0 AND d NOT NULL)
+         OR ((a BETWEEN 59 AND 61) AND a!=60)
+         OR ((a BETWEEN 86 AND 88) AND a!=87)
+         OR (d>=38.0 AND d<39.0 AND d NOT NULL)
+         OR b=245
+         OR b=528
+         OR b=366
+         OR a=73
+         OR a=49
+         OR b=421
+         OR a=58
+  }
+} {12 38 48 49 58 59 61 73 86 88 scan 0 sort 0}
+do_test where7-2.959.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=12.0 AND d<13.0 AND d NOT NULL)
+         OR ((a BETWEEN 59 AND 61) AND a!=60)
+         OR ((a BETWEEN 86 AND 88) AND a!=87)
+         OR (d>=38.0 AND d<39.0 AND d NOT NULL)
+         OR b=245
+         OR b=528
+         OR b=366
+         OR a=73
+         OR a=49
+         OR b=421
+         OR a=58
+  }
+} {12 38 48 49 58 59 61 73 86 88 scan 0 sort 0}
+do_test where7-2.960.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=100.0 AND d<101.0 AND d NOT NULL)
+         OR ((a BETWEEN 8 AND 10) AND a!=9)
+         OR ((a BETWEEN 86 AND 88) AND a!=87)
+         OR b=146
+         OR (g='ponmlkj' AND f GLOB 'rstuv*')
+         OR ((a BETWEEN 73 AND 75) AND a!=74)
+         OR (g='utsrqpo' AND f GLOB 'uvwxy*')
+         OR ((a BETWEEN 60 AND 62) AND a!=61)
+         OR (g='ihgfedc' AND f GLOB 'efghi*')
+         OR b=704
+  }
+} {8 10 20 43 60 62 64 73 75 82 86 88 100 scan 0 sort 0}
+do_test where7-2.960.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=100.0 AND d<101.0 AND d NOT NULL)
+         OR ((a BETWEEN 8 AND 10) AND a!=9)
+         OR ((a BETWEEN 86 AND 88) AND a!=87)
+         OR b=146
+         OR (g='ponmlkj' AND f GLOB 'rstuv*')
+         OR ((a BETWEEN 73 AND 75) AND a!=74)
+         OR (g='utsrqpo' AND f GLOB 'uvwxy*')
+         OR ((a BETWEEN 60 AND 62) AND a!=61)
+         OR (g='ihgfedc' AND f GLOB 'efghi*')
+         OR b=704
+  }
+} {8 10 20 43 60 62 64 73 75 82 86 88 100 scan 0 sort 0}
+do_test where7-2.961.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 65 AND 67) AND a!=66)
+         OR b=14
+         OR ((a BETWEEN 3 AND 5) AND a!=4)
+         OR a=49
+         OR b=333
+  }
+} {3 5 49 65 67 scan 0 sort 0}
+do_test where7-2.961.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 65 AND 67) AND a!=66)
+         OR b=14
+         OR ((a BETWEEN 3 AND 5) AND a!=4)
+         OR a=49
+         OR b=333
+  }
+} {3 5 49 65 67 scan 0 sort 0}
+do_test where7-2.962.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=17017
+         OR (g='qponmlk' AND f GLOB 'mnopq*')
+         OR b=971
+         OR a=37
+         OR a=7
+         OR b=641
+         OR a=13
+         OR b=597
+  }
+} {7 13 37 38 49 50 51 scan 0 sort 0}
+do_test where7-2.962.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=17017
+         OR (g='qponmlk' AND f GLOB 'mnopq*')
+         OR b=971
+         OR a=37
+         OR a=7
+         OR b=641
+         OR a=13
+         OR b=597
+  }
+} {7 13 37 38 49 50 51 scan 0 sort 0}
+do_test where7-2.963.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f='tuvwxyzab'
+         OR (f GLOB '?stuv*' AND f GLOB 'rstu*')
+  }
+} {17 19 43 45 69 71 95 97 scan 0 sort 0}
+do_test where7-2.963.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f='tuvwxyzab'
+         OR (f GLOB '?stuv*' AND f GLOB 'rstu*')
+  }
+} {17 19 43 45 69 71 95 97 scan 0 sort 0}
+do_test where7-2.964.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=638
+         OR (d>=44.0 AND d<45.0 AND d NOT NULL)
+         OR (g='gfedcba' AND f GLOB 'lmnop*')
+         OR b=165
+         OR ((a BETWEEN 10 AND 12) AND a!=11)
+         OR f='stuvwxyza'
+         OR b=652
+         OR b=66
+         OR b=770
+         OR b=91
+  }
+} {6 10 12 15 18 44 58 70 89 96 scan 0 sort 0}
+do_test where7-2.964.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=638
+         OR (d>=44.0 AND d<45.0 AND d NOT NULL)
+         OR (g='gfedcba' AND f GLOB 'lmnop*')
+         OR b=165
+         OR ((a BETWEEN 10 AND 12) AND a!=11)
+         OR f='stuvwxyza'
+         OR b=652
+         OR b=66
+         OR b=770
+         OR b=91
+  }
+} {6 10 12 15 18 44 58 70 89 96 scan 0 sort 0}
+do_test where7-2.965.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=52.0 AND d<53.0 AND d NOT NULL)
+         OR f='opqrstuvw'
+         OR a=83
+         OR a=93
+         OR b=858
+         OR (d>=18.0 AND d<19.0 AND d NOT NULL)
+         OR (g='jihgfed' AND f GLOB 'vwxyz*')
+  }
+} {14 18 40 52 66 73 78 83 92 93 scan 0 sort 0}
+do_test where7-2.965.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=52.0 AND d<53.0 AND d NOT NULL)
+         OR f='opqrstuvw'
+         OR a=83
+         OR a=93
+         OR b=858
+         OR (d>=18.0 AND d<19.0 AND d NOT NULL)
+         OR (g='jihgfed' AND f GLOB 'vwxyz*')
+  }
+} {14 18 40 52 66 73 78 83 92 93 scan 0 sort 0}
+do_test where7-2.966.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE c=3003
+         OR ((a BETWEEN 40 AND 42) AND a!=41)
+         OR a=38
+  }
+} {7 8 9 38 40 42 scan 0 sort 0}
+do_test where7-2.966.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE c=3003
+         OR ((a BETWEEN 40 AND 42) AND a!=41)
+         OR a=38
+  }
+} {7 8 9 38 40 42 scan 0 sort 0}
+do_test where7-2.967.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=60.0 AND d<61.0 AND d NOT NULL)
+         OR ((a BETWEEN 50 AND 52) AND a!=51)
+  }
+} {50 52 60 scan 0 sort 0}
+do_test where7-2.967.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=60.0 AND d<61.0 AND d NOT NULL)
+         OR ((a BETWEEN 50 AND 52) AND a!=51)
+  }
+} {50 52 60 scan 0 sort 0}
+do_test where7-2.968.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='qponmlk' AND f GLOB 'mnopq*')
+         OR ((a BETWEEN 24 AND 26) AND a!=25)
+         OR a=5
+         OR b=396
+         OR a=13
+  }
+} {5 13 24 26 36 38 scan 0 sort 0}
+do_test where7-2.968.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='qponmlk' AND f GLOB 'mnopq*')
+         OR ((a BETWEEN 24 AND 26) AND a!=25)
+         OR a=5
+         OR b=396
+         OR a=13
+  }
+} {5 13 24 26 36 38 scan 0 sort 0}
+do_test where7-2.969.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='fedcbaz' AND f GLOB 'rstuv*')
+         OR b=748
+         OR (d>=97.0 AND d<98.0 AND d NOT NULL)
+         OR ((a BETWEEN 69 AND 71) AND a!=70)
+         OR b=531
+         OR b=1092
+         OR b=418
+  }
+} {38 68 69 71 95 97 scan 0 sort 0}
+do_test where7-2.969.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='fedcbaz' AND f GLOB 'rstuv*')
+         OR b=748
+         OR (d>=97.0 AND d<98.0 AND d NOT NULL)
+         OR ((a BETWEEN 69 AND 71) AND a!=70)
+         OR b=531
+         OR b=1092
+         OR b=418
+  }
+} {38 68 69 71 95 97 scan 0 sort 0}
+do_test where7-2.970.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=30.0 AND d<31.0 AND d NOT NULL)
+         OR ((a BETWEEN 8 AND 10) AND a!=9)
+         OR (f GLOB '?pqrs*' AND f GLOB 'opqr*')
+         OR a=50
+         OR a=46
+         OR ((a BETWEEN 38 AND 40) AND a!=39)
+  }
+} {8 10 14 30 38 40 46 50 66 92 scan 0 sort 0}
+do_test where7-2.970.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=30.0 AND d<31.0 AND d NOT NULL)
+         OR ((a BETWEEN 8 AND 10) AND a!=9)
+         OR (f GLOB '?pqrs*' AND f GLOB 'opqr*')
+         OR a=50
+         OR a=46
+         OR ((a BETWEEN 38 AND 40) AND a!=39)
+  }
+} {8 10 14 30 38 40 46 50 66 92 scan 0 sort 0}
+do_test where7-2.971.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=24
+         OR ((a BETWEEN 22 AND 24) AND a!=23)
+         OR b=487
+         OR (d>=96.0 AND d<97.0 AND d NOT NULL)
+         OR ((a BETWEEN 13 AND 15) AND a!=14)
+         OR b=132
+         OR (d>=54.0 AND d<55.0 AND d NOT NULL)
+         OR b=795
+         OR b=737
+  }
+} {12 13 15 22 24 54 67 96 scan 0 sort 0}
+do_test where7-2.971.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=24
+         OR ((a BETWEEN 22 AND 24) AND a!=23)
+         OR b=487
+         OR (d>=96.0 AND d<97.0 AND d NOT NULL)
+         OR ((a BETWEEN 13 AND 15) AND a!=14)
+         OR b=132
+         OR (d>=54.0 AND d<55.0 AND d NOT NULL)
+         OR b=795
+         OR b=737
+  }
+} {12 13 15 22 24 54 67 96 scan 0 sort 0}
+do_test where7-2.972.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=88.0 AND d<89.0 AND d NOT NULL)
+         OR a=34
+         OR c=16016
+         OR b=1078
+         OR b=960
+         OR (g='hgfedcb' AND f GLOB 'jklmn*')
+  }
+} {34 46 47 48 87 88 98 scan 0 sort 0}
+do_test where7-2.972.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=88.0 AND d<89.0 AND d NOT NULL)
+         OR a=34
+         OR c=16016
+         OR b=1078
+         OR b=960
+         OR (g='hgfedcb' AND f GLOB 'jklmn*')
+  }
+} {34 46 47 48 87 88 98 scan 0 sort 0}
+do_test where7-2.973.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=1081
+         OR ((a BETWEEN 19 AND 21) AND a!=20)
+         OR (g='ponmlkj' AND f GLOB 'tuvwx*')
+         OR ((a BETWEEN 73 AND 75) AND a!=74)
+         OR (d>=38.0 AND d<39.0 AND d NOT NULL)
+         OR a=6
+  }
+} {6 19 21 38 45 73 75 scan 0 sort 0}
+do_test where7-2.973.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=1081
+         OR ((a BETWEEN 19 AND 21) AND a!=20)
+         OR (g='ponmlkj' AND f GLOB 'tuvwx*')
+         OR ((a BETWEEN 73 AND 75) AND a!=74)
+         OR (d>=38.0 AND d<39.0 AND d NOT NULL)
+         OR a=6
+  }
+} {6 19 21 38 45 73 75 scan 0 sort 0}
+do_test where7-2.974.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='fedcbaz' AND f GLOB 'rstuv*')
+         OR (g='rqponml' AND f GLOB 'lmnop*')
+         OR a=92
+         OR (f GLOB '?klmn*' AND f GLOB 'jklm*')
+         OR f='fghijklmn'
+         OR a=100
+         OR b=209
+         OR c=9009
+         OR ((a BETWEEN 52 AND 54) AND a!=53)
+         OR a=73
+         OR b=902
+  }
+} {5 9 19 25 26 27 31 35 37 52 54 57 61 73 82 83 87 92 95 100 scan 0 sort 0}
+do_test where7-2.974.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='fedcbaz' AND f GLOB 'rstuv*')
+         OR (g='rqponml' AND f GLOB 'lmnop*')
+         OR a=92
+         OR (f GLOB '?klmn*' AND f GLOB 'jklm*')
+         OR f='fghijklmn'
+         OR a=100
+         OR b=209
+         OR c=9009
+         OR ((a BETWEEN 52 AND 54) AND a!=53)
+         OR a=73
+         OR b=902
+  }
+} {5 9 19 25 26 27 31 35 37 52 54 57 61 73 82 83 87 92 95 100 scan 0 sort 0}
+do_test where7-2.975.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=40.0 AND d<41.0 AND d NOT NULL)
+         OR b=110
+         OR f='ghijklmno'
+         OR (d>=21.0 AND d<22.0 AND d NOT NULL)
+  }
+} {6 10 21 32 40 58 84 scan 0 sort 0}
+do_test where7-2.975.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=40.0 AND d<41.0 AND d NOT NULL)
+         OR b=110
+         OR f='ghijklmno'
+         OR (d>=21.0 AND d<22.0 AND d NOT NULL)
+  }
+} {6 10 21 32 40 58 84 scan 0 sort 0}
+do_test where7-2.976.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 51 AND 53) AND a!=52)
+         OR (g='utsrqpo' AND f GLOB 'uvwxy*')
+         OR (f GLOB '?cdef*' AND f GLOB 'bcde*')
+         OR b=91
+         OR (d>=45.0 AND d<46.0 AND d NOT NULL)
+         OR b=77
+         OR (g='ponmlkj' AND f GLOB 'uvwxy*')
+         OR (g='vutsrqp' AND f GLOB 'pqrst*')
+  }
+} {1 7 15 20 27 45 46 51 53 79 scan 0 sort 0}
+do_test where7-2.976.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 51 AND 53) AND a!=52)
+         OR (g='utsrqpo' AND f GLOB 'uvwxy*')
+         OR (f GLOB '?cdef*' AND f GLOB 'bcde*')
+         OR b=91
+         OR (d>=45.0 AND d<46.0 AND d NOT NULL)
+         OR b=77
+         OR (g='ponmlkj' AND f GLOB 'uvwxy*')
+         OR (g='vutsrqp' AND f GLOB 'pqrst*')
+  }
+} {1 7 15 20 27 45 46 51 53 79 scan 0 sort 0}
+do_test where7-2.977.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=56.0 AND d<57.0 AND d NOT NULL)
+         OR (d>=78.0 AND d<79.0 AND d NOT NULL)
+         OR b=693
+         OR (d>=21.0 AND d<22.0 AND d NOT NULL)
+         OR (d>=26.0 AND d<27.0 AND d NOT NULL)
+         OR (d>=42.0 AND d<43.0 AND d NOT NULL)
+         OR a=52
+         OR b=377
+  }
+} {21 26 42 52 56 63 78 scan 0 sort 0}
+do_test where7-2.977.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=56.0 AND d<57.0 AND d NOT NULL)
+         OR (d>=78.0 AND d<79.0 AND d NOT NULL)
+         OR b=693
+         OR (d>=21.0 AND d<22.0 AND d NOT NULL)
+         OR (d>=26.0 AND d<27.0 AND d NOT NULL)
+         OR (d>=42.0 AND d<43.0 AND d NOT NULL)
+         OR a=52
+         OR b=377
+  }
+} {21 26 42 52 56 63 78 scan 0 sort 0}
+do_test where7-2.978.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=99
+         OR a=36
+         OR b=297
+         OR ((a BETWEEN 66 AND 68) AND a!=67)
+         OR b=1004
+         OR b=872
+         OR a=95
+         OR (d>=27.0 AND d<28.0 AND d NOT NULL)
+         OR b=176
+         OR b=300
+  }
+} {16 27 36 66 68 95 99 scan 0 sort 0}
+do_test where7-2.978.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=99
+         OR a=36
+         OR b=297
+         OR ((a BETWEEN 66 AND 68) AND a!=67)
+         OR b=1004
+         OR b=872
+         OR a=95
+         OR (d>=27.0 AND d<28.0 AND d NOT NULL)
+         OR b=176
+         OR b=300
+  }
+} {16 27 36 66 68 95 99 scan 0 sort 0}
+do_test where7-2.979.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=737
+         OR (g='wvutsrq' AND f GLOB 'ijklm*')
+         OR (f GLOB '?ghij*' AND f GLOB 'fghi*')
+         OR a=40
+         OR f='uvwxyzabc'
+         OR b=311
+         OR (g='nmlkjih' AND f GLOB 'bcdef*')
+         OR (f GLOB '?hijk*' AND f GLOB 'ghij*')
+         OR b=927
+         OR (d>=50.0 AND d<51.0 AND d NOT NULL)
+  }
+} {5 6 8 20 31 32 40 46 50 53 57 58 67 72 83 84 98 scan 0 sort 0}
+do_test where7-2.979.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=737
+         OR (g='wvutsrq' AND f GLOB 'ijklm*')
+         OR (f GLOB '?ghij*' AND f GLOB 'fghi*')
+         OR a=40
+         OR f='uvwxyzabc'
+         OR b=311
+         OR (g='nmlkjih' AND f GLOB 'bcdef*')
+         OR (f GLOB '?hijk*' AND f GLOB 'ghij*')
+         OR b=927
+         OR (d>=50.0 AND d<51.0 AND d NOT NULL)
+  }
+} {5 6 8 20 31 32 40 46 50 53 57 58 67 72 83 84 98 scan 0 sort 0}
+do_test where7-2.980.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE f='fghijklmn'
+         OR b=1078
+         OR (d>=35.0 AND d<36.0 AND d NOT NULL)
+         OR f='fghijklmn'
+  }
+} {5 31 35 57 83 98 scan 0 sort 0}
+do_test where7-2.980.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE f='fghijklmn'
+         OR b=1078
+         OR (d>=35.0 AND d<36.0 AND d NOT NULL)
+         OR f='fghijklmn'
+  }
+} {5 31 35 57 83 98 scan 0 sort 0}
+do_test where7-2.981.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='xwvutsr' AND f GLOB 'ghijk*')
+         OR b=487
+         OR f='tuvwxyzab'
+         OR (g='onmlkji' AND f GLOB 'wxyza*')
+         OR b=971
+         OR c=19019
+         OR a=39
+         OR (f GLOB '?nopq*' AND f GLOB 'mnop*')
+         OR b=550
+         OR (g='kjihgfe' AND f GLOB 'tuvwx*')
+         OR b=660
+  }
+} {6 12 19 38 39 45 48 50 55 56 57 60 64 71 90 97 scan 0 sort 0}
+do_test where7-2.981.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='xwvutsr' AND f GLOB 'ghijk*')
+         OR b=487
+         OR f='tuvwxyzab'
+         OR (g='onmlkji' AND f GLOB 'wxyza*')
+         OR b=971
+         OR c=19019
+         OR a=39
+         OR (f GLOB '?nopq*' AND f GLOB 'mnop*')
+         OR b=550
+         OR (g='kjihgfe' AND f GLOB 'tuvwx*')
+         OR b=660
+  }
+} {6 12 19 38 39 45 48 50 55 56 57 60 64 71 90 97 scan 0 sort 0}
+do_test where7-2.982.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=80
+         OR b=839
+  }
+} { scan 0 sort 0}
+do_test where7-2.982.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=80
+         OR b=839
+  }
+} { scan 0 sort 0}
+do_test where7-2.983.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=363
+         OR b=630
+         OR b=935
+         OR (d>=20.0 AND d<21.0 AND d NOT NULL)
+         OR (g='srqponm' AND f GLOB 'defgh*')
+         OR f='yzabcdefg'
+         OR ((a BETWEEN 37 AND 39) AND a!=38)
+  }
+} {20 24 29 33 37 39 50 76 85 scan 0 sort 0}
+do_test where7-2.983.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=363
+         OR b=630
+         OR b=935
+         OR (d>=20.0 AND d<21.0 AND d NOT NULL)
+         OR (g='srqponm' AND f GLOB 'defgh*')
+         OR f='yzabcdefg'
+         OR ((a BETWEEN 37 AND 39) AND a!=38)
+  }
+} {20 24 29 33 37 39 50 76 85 scan 0 sort 0}
+do_test where7-2.984.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=97.0 AND d<98.0 AND d NOT NULL)
+         OR a=40
+         OR (d>=86.0 AND d<87.0 AND d NOT NULL)
+         OR f='abcdefghi'
+         OR b=696
+         OR (g='vutsrqp' AND f GLOB 'qrstu*')
+         OR b=682
+         OR a=32
+         OR ((a BETWEEN 34 AND 36) AND a!=35)
+         OR b=671
+         OR a=15
+  }
+} {15 16 26 32 34 36 40 52 61 62 78 86 97 scan 0 sort 0}
+do_test where7-2.984.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=97.0 AND d<98.0 AND d NOT NULL)
+         OR a=40
+         OR (d>=86.0 AND d<87.0 AND d NOT NULL)
+         OR f='abcdefghi'
+         OR b=696
+         OR (g='vutsrqp' AND f GLOB 'qrstu*')
+         OR b=682
+         OR a=32
+         OR ((a BETWEEN 34 AND 36) AND a!=35)
+         OR b=671
+         OR a=15
+  }
+} {15 16 26 32 34 36 40 52 61 62 78 86 97 scan 0 sort 0}
+do_test where7-2.985.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (g='gfedcba' AND f GLOB 'lmnop*')
+         OR (f GLOB '?ijkl*' AND f GLOB 'hijk*')
+         OR b=311
+  }
+} {7 33 59 85 89 scan 0 sort 0}
+do_test where7-2.985.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (g='gfedcba' AND f GLOB 'lmnop*')
+         OR (f GLOB '?ijkl*' AND f GLOB 'hijk*')
+         OR b=311
+  }
+} {7 33 59 85 89 scan 0 sort 0}
+do_test where7-2.986.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=96.0 AND d<97.0 AND d NOT NULL)
+         OR a=73
+         OR b=729
+         OR (d>=81.0 AND d<82.0 AND d NOT NULL)
+         OR (d>=67.0 AND d<68.0 AND d NOT NULL)
+         OR a=32
+  }
+} {32 67 73 81 96 scan 0 sort 0}
+do_test where7-2.986.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=96.0 AND d<97.0 AND d NOT NULL)
+         OR a=73
+         OR b=729
+         OR (d>=81.0 AND d<82.0 AND d NOT NULL)
+         OR (d>=67.0 AND d<68.0 AND d NOT NULL)
+         OR a=32
+  }
+} {32 67 73 81 96 scan 0 sort 0}
+do_test where7-2.987.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 98 AND 100) AND a!=99)
+         OR b=110
+         OR ((a BETWEEN 38 AND 40) AND a!=39)
+         OR (g='tsrqpon' AND f GLOB 'xyzab*')
+         OR b=484
+         OR (d>=82.0 AND d<83.0 AND d NOT NULL)
+  }
+} {10 23 38 40 44 82 98 100 scan 0 sort 0}
+do_test where7-2.987.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 98 AND 100) AND a!=99)
+         OR b=110
+         OR ((a BETWEEN 38 AND 40) AND a!=39)
+         OR (g='tsrqpon' AND f GLOB 'xyzab*')
+         OR b=484
+         OR (d>=82.0 AND d<83.0 AND d NOT NULL)
+  }
+} {10 23 38 40 44 82 98 100 scan 0 sort 0}
+do_test where7-2.988.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=99.0 AND d<100.0 AND d NOT NULL)
+         OR b=135
+         OR (d>=66.0 AND d<67.0 AND d NOT NULL)
+         OR b=209
+         OR b=363
+         OR c=27027
+         OR b=1026
+         OR c=6006
+         OR (g='ponmlkj' AND f GLOB 'uvwxy*')
+         OR (d>=73.0 AND d<74.0 AND d NOT NULL)
+  }
+} {16 17 18 19 33 46 66 73 79 80 81 99 scan 0 sort 0}
+do_test where7-2.988.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=99.0 AND d<100.0 AND d NOT NULL)
+         OR b=135
+         OR (d>=66.0 AND d<67.0 AND d NOT NULL)
+         OR b=209
+         OR b=363
+         OR c=27027
+         OR b=1026
+         OR c=6006
+         OR (g='ponmlkj' AND f GLOB 'uvwxy*')
+         OR (d>=73.0 AND d<74.0 AND d NOT NULL)
+  }
+} {16 17 18 19 33 46 66 73 79 80 81 99 scan 0 sort 0}
+do_test where7-2.989.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=79.0 AND d<80.0 AND d NOT NULL)
+         OR ((a BETWEEN 18 AND 20) AND a!=19)
+         OR (g='qponmlk' AND f GLOB 'nopqr*')
+         OR a=97
+         OR (d>=45.0 AND d<46.0 AND d NOT NULL)
+         OR ((a BETWEEN 22 AND 24) AND a!=23)
+         OR (g='mlkjihg' AND f GLOB 'ghijk*')
+         OR b=674
+         OR c=14014
+         OR b=69
+  }
+} {18 20 22 24 39 40 41 42 45 58 79 97 scan 0 sort 0}
+do_test where7-2.989.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=79.0 AND d<80.0 AND d NOT NULL)
+         OR ((a BETWEEN 18 AND 20) AND a!=19)
+         OR (g='qponmlk' AND f GLOB 'nopqr*')
+         OR a=97
+         OR (d>=45.0 AND d<46.0 AND d NOT NULL)
+         OR ((a BETWEEN 22 AND 24) AND a!=23)
+         OR (g='mlkjihg' AND f GLOB 'ghijk*')
+         OR b=674
+         OR c=14014
+         OR b=69
+  }
+} {18 20 22 24 39 40 41 42 45 58 79 97 scan 0 sort 0}
+do_test where7-2.990.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=297
+         OR a=83
+         OR (d>=78.0 AND d<79.0 AND d NOT NULL)
+         OR ((a BETWEEN 16 AND 18) AND a!=17)
+  }
+} {16 18 27 78 83 scan 0 sort 0}
+do_test where7-2.990.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=297
+         OR a=83
+         OR (d>=78.0 AND d<79.0 AND d NOT NULL)
+         OR ((a BETWEEN 16 AND 18) AND a!=17)
+  }
+} {16 18 27 78 83 scan 0 sort 0}
+do_test where7-2.991.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=451
+         OR ((a BETWEEN 11 AND 13) AND a!=12)
+         OR (g='tsrqpon' AND f GLOB 'abcde*')
+         OR b=539
+         OR a=26
+         OR (g='srqponm' AND f GLOB 'efghi*')
+         OR b=465
+         OR (g='jihgfed' AND f GLOB 'wxyza*')
+  }
+} {11 13 26 30 41 49 74 scan 0 sort 0}
+do_test where7-2.991.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=451
+         OR ((a BETWEEN 11 AND 13) AND a!=12)
+         OR (g='tsrqpon' AND f GLOB 'abcde*')
+         OR b=539
+         OR a=26
+         OR (g='srqponm' AND f GLOB 'efghi*')
+         OR b=465
+         OR (g='jihgfed' AND f GLOB 'wxyza*')
+  }
+} {11 13 26 30 41 49 74 scan 0 sort 0}
+do_test where7-2.992.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (d>=45.0 AND d<46.0 AND d NOT NULL)
+         OR (d>=63.0 AND d<64.0 AND d NOT NULL)
+  }
+} {45 63 scan 0 sort 0}
+do_test where7-2.992.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (d>=45.0 AND d<46.0 AND d NOT NULL)
+         OR (d>=63.0 AND d<64.0 AND d NOT NULL)
+  }
+} {45 63 scan 0 sort 0}
+do_test where7-2.993.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 16 AND 18) AND a!=17)
+         OR b=872
+         OR c=31031
+  }
+} {16 18 91 92 93 scan 0 sort 0}
+do_test where7-2.993.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 16 AND 18) AND a!=17)
+         OR b=872
+         OR c=31031
+  }
+} {16 18 91 92 93 scan 0 sort 0}
+do_test where7-2.994.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE (f GLOB '?cdef*' AND f GLOB 'bcde*')
+         OR a=13
+         OR (f GLOB '?stuv*' AND f GLOB 'rstu*')
+         OR b=322
+         OR ((a BETWEEN 33 AND 35) AND a!=34)
+         OR b=377
+         OR f='cdefghijk'
+         OR b=286
+         OR ((a BETWEEN 61 AND 63) AND a!=62)
+  }
+} {1 2 13 17 26 27 28 33 35 43 53 54 61 63 69 79 80 95 scan 0 sort 0}
+do_test where7-2.994.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE (f GLOB '?cdef*' AND f GLOB 'bcde*')
+         OR a=13
+         OR (f GLOB '?stuv*' AND f GLOB 'rstu*')
+         OR b=322
+         OR ((a BETWEEN 33 AND 35) AND a!=34)
+         OR b=377
+         OR f='cdefghijk'
+         OR b=286
+         OR ((a BETWEEN 61 AND 63) AND a!=62)
+  }
+} {1 2 13 17 26 27 28 33 35 43 53 54 61 63 69 79 80 95 scan 0 sort 0}
+do_test where7-2.995.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=41
+         OR b=990
+         OR (d>=36.0 AND d<37.0 AND d NOT NULL)
+         OR b=605
+         OR (g='srqponm' AND f GLOB 'cdefg*')
+         OR (d>=36.0 AND d<37.0 AND d NOT NULL)
+         OR (g='vutsrqp' AND f GLOB 'qrstu*')
+         OR b=968
+         OR a=66
+  }
+} {16 28 36 41 55 66 88 90 scan 0 sort 0}
+do_test where7-2.995.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=41
+         OR b=990
+         OR (d>=36.0 AND d<37.0 AND d NOT NULL)
+         OR b=605
+         OR (g='srqponm' AND f GLOB 'cdefg*')
+         OR (d>=36.0 AND d<37.0 AND d NOT NULL)
+         OR (g='vutsrqp' AND f GLOB 'qrstu*')
+         OR b=968
+         OR a=66
+  }
+} {16 28 36 41 55 66 88 90 scan 0 sort 0}
+do_test where7-2.996.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=1059
+         OR (g='srqponm' AND f GLOB 'ghijk*')
+         OR (g='utsrqpo' AND f GLOB 'tuvwx*')
+         OR (g='nmlkjih' AND f GLOB 'fghij*')
+         OR (d>=17.0 AND d<18.0 AND d NOT NULL)
+         OR (d>=37.0 AND d<38.0 AND d NOT NULL)
+         OR (g='onmlkji' AND f GLOB 'abcde*')
+         OR ((a BETWEEN 39 AND 41) AND a!=40)
+  }
+} {17 19 32 37 39 41 52 57 scan 0 sort 0}
+do_test where7-2.996.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=1059
+         OR (g='srqponm' AND f GLOB 'ghijk*')
+         OR (g='utsrqpo' AND f GLOB 'tuvwx*')
+         OR (g='nmlkjih' AND f GLOB 'fghij*')
+         OR (d>=17.0 AND d<18.0 AND d NOT NULL)
+         OR (d>=37.0 AND d<38.0 AND d NOT NULL)
+         OR (g='onmlkji' AND f GLOB 'abcde*')
+         OR ((a BETWEEN 39 AND 41) AND a!=40)
+  }
+} {17 19 32 37 39 41 52 57 scan 0 sort 0}
+do_test where7-2.997.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE ((a BETWEEN 41 AND 43) AND a!=42)
+         OR f='nopqrstuv'
+         OR (g='ponmlkj' AND f GLOB 'stuvw*')
+         OR a=42
+         OR b=729
+         OR b=297
+         OR a=77
+         OR b=781
+         OR ((a BETWEEN 36 AND 38) AND a!=37)
+  }
+} {13 27 36 38 39 41 42 43 44 65 71 77 91 scan 0 sort 0}
+do_test where7-2.997.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE ((a BETWEEN 41 AND 43) AND a!=42)
+         OR f='nopqrstuv'
+         OR (g='ponmlkj' AND f GLOB 'stuvw*')
+         OR a=42
+         OR b=729
+         OR b=297
+         OR a=77
+         OR b=781
+         OR ((a BETWEEN 36 AND 38) AND a!=37)
+  }
+} {13 27 36 38 39 41 42 43 44 65 71 77 91 scan 0 sort 0}
+do_test where7-2.998.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE a=12
+         OR f='qrstuvwxy'
+         OR a=47
+         OR b=135
+         OR a=25
+  }
+} {12 16 25 42 47 68 94 scan 0 sort 0}
+do_test where7-2.998.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE a=12
+         OR f='qrstuvwxy'
+         OR a=47
+         OR b=135
+         OR a=25
+  }
+} {12 16 25 42 47 68 94 scan 0 sort 0}
+do_test where7-2.999.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=451
+         OR b=660
+         OR (g='onmlkji' AND f GLOB 'yzabc*')
+         OR b=781
+         OR (g='jihgfed' AND f GLOB 'wxyza*')
+         OR b=198
+         OR b=1023
+         OR a=98
+         OR d<0.0
+         OR ((a BETWEEN 79 AND 81) AND a!=80)
+  }
+} {18 41 50 60 71 74 79 81 93 98 scan 0 sort 0}
+do_test where7-2.999.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=451
+         OR b=660
+         OR (g='onmlkji' AND f GLOB 'yzabc*')
+         OR b=781
+         OR (g='jihgfed' AND f GLOB 'wxyza*')
+         OR b=198
+         OR b=1023
+         OR a=98
+         OR d<0.0
+         OR ((a BETWEEN 79 AND 81) AND a!=80)
+  }
+} {18 41 50 60 71 74 79 81 93 98 scan 0 sort 0}
+do_test where7-2.1000.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=685
+         OR a=86
+         OR c=17017
+         OR ((a BETWEEN 85 AND 87) AND a!=86)
+         OR (g='gfedcba' AND f GLOB 'mnopq*')
+         OR a=80
+         OR b=773
+  }
+} {49 50 51 80 85 86 87 90 scan 0 sort 0}
+do_test where7-2.1000.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=685
+         OR a=86
+         OR c=17017
+         OR ((a BETWEEN 85 AND 87) AND a!=86)
+         OR (g='gfedcba' AND f GLOB 'mnopq*')
+         OR a=80
+         OR b=773
+  }
+} {49 50 51 80 85 86 87 90 scan 0 sort 0}
+do_test where7-2.1001.1 {
+  count_steps_sort {
+     SELECT a FROM t2
+      WHERE b=1092
+         OR a=23
+         OR (f GLOB '?defg*' AND f GLOB 'cdef*')
+         OR d<0.0
+         OR (d>=22.0 AND d<23.0 AND d NOT NULL)
+         OR a=91
+  }
+} {2 22 23 28 54 80 91 scan 0 sort 0}
+do_test where7-2.1001.2 {
+  count_steps_sort {
+     SELECT a FROM t3
+      WHERE b=1092
+         OR a=23
+         OR (f GLOB '?defg*' AND f GLOB 'cdef*')
+         OR d<0.0
+         OR (d>=22.0 AND d<23.0 AND d NOT NULL)
+         OR a=91
+  }
+} {2 22 23 28 54 80 91 scan 0 sort 0}
+
+# test case for the performance regression fixed by
+# check-in 28ba6255282b on 2010-10-21 02:05:06
+#
+# The test case that follows is code from an actual
+# application with identifiers change and unused columns
+# removed.
+#
+do_execsql_test where7-3.1 {
+  CREATE TABLE t301 (
+      c8 INTEGER PRIMARY KEY,
+      c6 INTEGER,
+      c4 INTEGER,
+      c7 INTEGER,
+      FOREIGN KEY (c4) REFERENCES series(c4)
+  );
+  CREATE INDEX t301_c6 on t301(c6);
+  CREATE INDEX t301_c4 on t301(c4);
+  CREATE INDEX t301_c7 on t301(c7);
+  
+  CREATE TABLE t302 (
+      c1 INTEGER PRIMARY KEY,
+      c8 INTEGER,
+      c5 INTEGER,
+      c3 INTEGER,
+      c2 INTEGER,
+      c4 INTEGER,
+      FOREIGN KEY (c8) REFERENCES t301(c8)
+  );
+  CREATE INDEX t302_c3 on t302(c3);
+  CREATE INDEX t302_c8_c3 on t302(c8, c3);
+  CREATE INDEX t302_c5 on t302(c5);
+}
+do_eqp_test where7-3.2 {
+  SELECT t302.c1 
+    FROM t302 JOIN t301 ON t302.c8 = +t301.c8
+    WHERE t302.c2 = 19571
+      AND t302.c3 > 1287603136
+      AND (t301.c4 = 1407449685622784
+           OR t301.c8 = 1407424651264000)
+   ORDER BY t302.c5 LIMIT 200;
+} {
+  QUERY PLAN
+  |--MULTI-INDEX OR
+  |  |--INDEX 1
+  |  |  `--SEARCH t301 USING COVERING INDEX t301_c4 (c4=?)
+  |  `--INDEX 2
+  |     `--SEARCH t301 USING INTEGER PRIMARY KEY (rowid=?)
+  |--SEARCH t302 USING INDEX t302_c8_c3 (c8=? AND c3>?)
+  `--USE TEMP B-TREE FOR ORDER BY
+}
+
+# 2022-03-03 https://sqlite.org/forum/forumpost/36937b197273d403
+#
+# In the multi-index OR, if there is an auxiliary WHERE clause term
+# that includes a subquery and that subquery is pushed down into the
+# OR-clause subqueries, WHERE subquery might get coded as a subroutine.
+# In that case, the covering-index optimizer will attempt to change
+# table-references into index-references.  But it will do so for the
+# index of the OR branch in which the subquery is coded.  If the
+# subquery subroutine is called from a different OR branch, the
+# index might be different and the index-reference will no longer
+# work.  tag-20220303a
+#
+reset_db
+do_execsql_test 4.1 {
+  CREATE TABLE t0(w);
+  INSERT INTO t0(w) VALUES(1);
+  CREATE TABLE t1(x INT, y INT PRIMARY KEY, z); 
+  INSERT INTO t1 VALUES(0,111,222);
+  CREATE INDEX t1zxy ON t1(z,x,y);
+  SELECT y FROM t1
+   WHERE (z=222 OR y=111)
+     AND (false OR EXISTS(SELECT 1 FROM t0 WHERE t1.y));
+} {111}
+
+finish_test
diff --git a/test/where8.test b/test/where8.test
new file mode 100644
index 0000000000000000000000000000000000000000..a8dbcfd9fed705fd5d2751c709346e109183820c
--- /dev/null
+++ b/test/where8.test
@@ -0,0 +1,773 @@
+# 2008 December 23
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. The focus
+# is testing of where.c. More specifically, the focus is the optimization
+# of WHERE clauses that feature the OR operator.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+if {[permutation]=="sorterref"} {
+  finish_test
+  return
+}
+
+# Test organization:
+#
+#   where8-1.*: Tests to demonstrate simple cases work with a single table
+#               in the FROM clause.
+#
+#   where8-2.*: Tests surrounding virtual tables and the OR optimization.
+#
+#   where8-3.*: Tests with more than one table in the FROM clause.
+# 
+
+proc execsql_status {sql {db db}} {
+  set result [uplevel $db eval [list $sql]]
+  concat $result [db status step] [db status sort]
+}
+
+proc execsql_status2 {sql {db db}} {
+  set ::sqlite_search_count 0
+  set result [uplevel [list execsql_status $sql $db]]
+  concat $result $::sqlite_search_count
+}
+
+do_test where8-1.1 {
+  execsql {
+    CREATE TABLE t1(a, b TEXT, c);
+    CREATE INDEX i1 ON t1(a);
+    CREATE INDEX i2 ON t1(b);
+
+    INSERT INTO t1 VALUES(1,  'one',   'I');
+    INSERT INTO t1 VALUES(2,  'two',   'II');
+    INSERT INTO t1 VALUES(3,  'three', 'III');
+    INSERT INTO t1 VALUES(4,  'four',  'IV');
+    INSERT INTO t1 VALUES(5,  'five',  'V');
+    INSERT INTO t1 VALUES(6,  'six',   'VI');
+    INSERT INTO t1 VALUES(7,  'seven', 'VII');
+    INSERT INTO t1 VALUES(8,  'eight', 'VIII');
+    INSERT INTO t1 VALUES(9,  'nine',  'IX');
+    INSERT INTO t1 VALUES(10, 'ten',   'X');
+  }
+} {}
+
+do_test where8-1.2 { 
+  execsql_status2 { SELECT c FROM t1 WHERE a = 1 OR b = 'nine' }
+} {I IX 0 0 6}
+
+do_test where8-1.3 { 
+  execsql_status2 { SELECT c FROM t1 WHERE a > 8 OR b = 'two' }
+} {IX X II 0 0 6}
+
+ifcapable like_match_blobs {
+  do_test where8-1.4a { 
+    execsql_status2 { SELECT c FROM t1 WHERE a > 8 OR b GLOB 't*' }
+  } {IX X III II 0 0 10}
+  do_test where8-1.5a { 
+    execsql_status2 { SELECT c FROM t1 WHERE a > 8 OR b GLOB 'f*' }
+  } {IX X V IV 0 0 10}
+} else {
+  do_test where8-1.4b { 
+    execsql_status2 { SELECT c FROM t1 WHERE a > 8 OR b GLOB 't*' }
+  } {IX X III II 0 0 9}
+  do_test where8-1.5 { 
+    execsql_status2 { SELECT c FROM t1 WHERE a > 8 OR b GLOB 'f*' }
+  } {IX X V IV 0 0 9}
+}
+
+do_test where8-1.6 { 
+  execsql_status { SELECT c FROM t1 WHERE a = 1 OR b = 'three' ORDER BY rowid }
+} {I III 0 1}
+
+do_test where8-1.7 { 
+  execsql_status { SELECT c FROM t1 WHERE a = 1 OR b = 'three' ORDER BY a }
+} {I III 0 1}
+
+do_test where8-1.8 {
+  # 18 searches. 9 on the index cursor and 9 on the table cursor.
+  execsql_status2 { SELECT c FROM t1 WHERE a > 1 AND c LIKE 'I%' }
+} {II III IV IX 0 0 18}
+
+do_test where8-1.9 {
+  execsql_status2 { SELECT c FROM t1 WHERE a >= 9 OR b <= 'eight' }
+} {IX X VIII 0 0 7}
+
+do_test where8-1.10 {
+  execsql_status2 { 
+    SELECT c FROM t1 WHERE (a >= 9 AND c != 'X') OR b <= 'eight' 
+  }
+} {IX VIII 0 0 7}
+
+do_test where8-1.11 {
+  execsql_status2 { 
+    SELECT c FROM t1 WHERE (a >= 4 AND a <= 6) OR b = 'nine' 
+  }
+} {IV V VI IX 0 0 10}
+
+do_test where8-1.12.1 {
+  execsql_status2 { 
+    SELECT c FROM t1 WHERE a IN(1, 2, 3) OR a = 5
+  }
+} {I II III V 0 0 14}
+
+do_test where8-1.12.2 {
+  execsql_status2 { 
+    SELECT c FROM t1 WHERE +a IN(1, 2, 3) OR +a = 5
+  }
+} {I II III V 9 0 9}
+
+do_test where8-1.13 {
+  execsql_status2 {
+    SELECT c FROM t1
+    WHERE a = 2 OR b = 'three' OR a = 4 OR b = 'five' OR a = 6
+    ORDER BY rowid
+  }
+} {II III IV V VI 0 1 18}
+do_test where8-1.14 {
+  execsql_status2 {
+    SELECT c FROM t1
+    WHERE 
+      a = 2 OR b = 'three' OR a = 4 OR b = 'five' OR a = 6 OR
+      b = 'seven' OR a = 8 OR b = 'nine' OR a = 10
+    ORDER BY rowid
+  }
+} {II III IV V VI VII VIII IX X 0 1 33}
+
+do_test where8-1.15 {
+  execsql_status2 {
+    SELECT c FROM t1 WHERE 
+      a BETWEEN 2 AND 4 OR b = 'nine'
+    ORDER BY rowid
+  }
+} {II III IV IX 0 1 12}
+
+
+#--------------------------------------------------------------------------
+# Tests where8-2.*: Virtual tables
+# 
+
+if 0 {
+ifcapable vtab {
+  # Register the 'echo' module used for testing virtual tables.
+  #
+  register_echo_module [sqlite3_connection_pointer db]
+
+  do_test where8-2.1 {
+    execsql {
+      CREATE VIRTUAL TABLE e1 USING echo(t1);
+      SELECT b FROM e1;
+    }
+  } {one two three four five six seven eight nine ten}
+
+  do_test where8-2.2.1 {
+    set echo_module ""
+    execsql {
+      SELECT c FROM e1 WHERE a=1 OR b='three';
+    }
+  } {I III}
+  do_test where8-2.2.2 {
+    set echo_module
+  } {TODO: What should this be?}
+}
+}
+
+#--------------------------------------------------------------------------
+# Tests where8-3.*: Cases with multiple tables in the FROM clause.
+# 
+do_test where8-3.1 {
+  execsql {
+    CREATE TABLE t2(d, e, f);
+    CREATE INDEX i3 ON t2(d);
+    CREATE INDEX i4 ON t2(e);
+
+    INSERT INTO t2 VALUES(1,  NULL,         'I');
+    INSERT INTO t2 VALUES(2,  'four',       'IV');
+    INSERT INTO t2 VALUES(3,  NULL,         'IX');
+    INSERT INTO t2 VALUES(4,  'sixteen',    'XVI');
+    INSERT INTO t2 VALUES(5,  NULL,         'XXV');
+    INSERT INTO t2 VALUES(6,  'thirtysix',  'XXXVI');
+    INSERT INTO t2 VALUES(7,  'fortynine',  'XLIX');
+    INSERT INTO t2 VALUES(8,  'sixtyeight', 'LXIV');
+    INSERT INTO t2 VALUES(9,  'eightyone',  'LXXXIX');
+    INSERT INTO t2 VALUES(10, NULL,         'C');
+  }
+} {}
+
+do_test where8-3.2 {
+  execsql_status {
+    SELECT a, d FROM t1, t2 WHERE b=e
+  }
+} {4 2 9 0}
+
+do_test where8-3.3 {
+  execsql_status {
+    SELECT a, d FROM t1, t2 WHERE (a = 2 OR a = 3) AND d = 6
+  }
+} {2 6 3 6 0 0}
+
+do_test where8-3.4 {
+  execsql_status {
+    SELECT a, d FROM t1, t2 WHERE (a = 2 OR a = 3) AND d = a
+  }
+} {2 2 3 3 0 0}
+
+do_test where8-3.5 {
+  execsql_status {
+    SELECT a, d FROM t1, t2 WHERE (a = 2 OR a = 3) AND (d = +a OR e = 'sixteen')
+     ORDER BY +a, +d;
+  }
+} {2 2 2 4 3 3 3 4 0 1}
+
+do_test where8-3.6 {
+  # The first part of the WHERE clause in this query, (a=2 OR a=3) is
+  # transformed into "a IN (2, 3)". This is why the sort is required.
+  #
+  execsql_status {
+    SELECT a, d 
+    FROM t1, t2 
+    WHERE (a = 2 OR a = 3) AND (d = +a OR e = 'sixteen')
+    ORDER BY t1.rowid
+  }
+} {2 2 2 4 3 3 3 4 0 1}
+do_test where8-3.7 {
+  execsql_status {
+    SELECT a, d 
+    FROM t1, t2 
+    WHERE a = 2 AND (d = a OR e = 'sixteen')
+    ORDER BY t1.rowid
+  }
+} {/2 2 2 4 0 [01]/}
+do_test where8-3.8 {
+  execsql_status {
+    SELECT a, d 
+    FROM t1, t2 
+    WHERE (a = 2 OR b = 'three') AND (d = a OR e = 'sixteen')
+    ORDER BY t1.rowid
+  }
+} {2 2 2 4 3 3 3 4 0 1}
+
+do_test where8-3.9 {
+  # The "OR c = 'IX'" term forces a linear scan.
+  execsql_status {
+    SELECT a, d 
+    FROM t1, t2 
+    WHERE (a = 2 OR b = 'three' OR c = 'IX') AND (d = a OR e = 'sixteen')
+    ORDER BY t1.rowid
+  }
+} {2 2 2 4 3 3 3 4 9 9 9 4 9 0}
+
+do_test where8-3.10 {
+  execsql_status {
+    SELECT d FROM t2 WHERE e IS NULL OR e = 'four'
+  }
+} {1 3 5 10 2 0 0}
+
+do_test where8-3.11 {
+  execsql_status {
+    SELECT a, d FROM t1, t2 WHERE (a=d OR b=e) AND a<5 ORDER BY a
+  }
+} {1 1 2 2 3 3 4 2 4 4 0 0}
+do_test where8-3.12 {
+  execsql_status {
+    SELECT a, d FROM t1, t2 WHERE (a=d OR b=e) AND +a<5 ORDER BY a
+  }
+} {1 1 2 2 3 3 4 2 4 4 9 0}
+do_test where8-3.13 {
+  execsql_status {
+    SELECT a, d FROM t1, t2 WHERE (a=d OR b=e) AND +a<5
+  }
+} {1 1 2 2 3 3 4 2 4 4 9 0}
+
+do_test where8-3.14 {
+  execsql_status {
+    SELECT c FROM t1 WHERE a > (SELECT d FROM t2 WHERE e = b) OR a = 5
+  }
+} {IV V 9 0}
+
+do_test where8-3.15 {
+  execsql_status {
+    SELECT c FROM t1, t2 WHERE a BETWEEN 1 AND 2 OR a = (
+      SELECT sum(e IS NULL) FROM t2 AS inner WHERE t2.d>inner.d
+    )
+    ORDER BY c
+  }
+} {I I I I I I I I I I II II II II II II II II II II III III III III III 9 1}
+
+
+do_test where8-3.21 {
+  execsql_status {
+    SELECT a, d FROM t1, (t2) WHERE (a=d OR b=e) AND a<5 ORDER BY a
+  }
+} {1 1 2 2 3 3 4 2 4 4 0 0}
+do_test where8-3.21.1 {
+  execsql_status {
+    SELECT a, d FROM t1, ((t2)) AS t3 WHERE (a=d OR b=e) AND a<5 ORDER BY a
+  }
+} {1 1 2 2 3 3 4 2 4 4 0 0}
+if {[permutation] != "no_optimization"} {
+do_test where8-3.21.2 {
+  execsql_status {
+    SELECT a, d FROM t1, ((SELECT * FROM t2)) AS t3 WHERE (a=d OR b=e) AND a<5 ORDER BY a
+  }
+} {1 1 2 2 3 3 4 2 4 4 0 0}
+}
+do_test where8-3.22 {
+  execsql_status {
+    SELECT a, d FROM ((((((t1))), (((t2))))))
+     WHERE (a=d OR b=e) AND a<5 ORDER BY a
+  }
+} {1 1 2 2 3 3 4 2 4 4 0 0}
+if {[permutation] != "no_optimization"} {
+do_test where8-3.23 {
+  execsql_status {
+    SELECT * FROM ((SELECT * FROM t2)) AS t3;
+  }
+} {1 {} I 2 four IV 3 {} IX 4 sixteen XVI 5 {} XXV 6 thirtysix XXXVI 7 fortynine XLIX 8 sixtyeight LXIV 9 eightyone LXXXIX 10 {} C 9 0}
+}
+
+#-----------------------------------------------------------------------
+# The following tests - where8-4.* - verify that adding or removing 
+# indexes does not change the results returned by various queries.
+#
+do_test where8-4.1 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t3(a INTEGER, b REAL, c TEXT);
+    CREATE TABLE t4(f INTEGER, g REAL, h TEXT);
+    INSERT INTO t3 VALUES('hills', NULL, 1415926535);
+    INSERT INTO t3 VALUES('and', 'of', NULL);
+    INSERT INTO t3 VALUES('have', 'towering', 53594.08128);
+    INSERT INTO t3 VALUES(NULL, 45.64856692, 'Not');
+    INSERT INTO t3 VALUES('same', 5028841971, NULL);
+    INSERT INTO t3 VALUES('onlookers', 'in', 8214808651);
+    INSERT INTO t3 VALUES(346.0348610, 2643383279, NULL);
+    INSERT INTO t3 VALUES(1415926535, 'of', 'are');
+    INSERT INTO t3 VALUES(NULL, 0.4811174502, 'snapshots');
+    INSERT INTO t3 VALUES('over', 'the', 8628034825);
+    INSERT INTO t3 VALUES(8628034825, 66.59334461, 2847564.823);
+    INSERT INTO t3 VALUES('onlookers', 'same', 'and');
+    INSERT INTO t3 VALUES(NULL, 'light', 6939937510);
+    INSERT INTO t3 VALUES('from', 'their', 'viewed');
+    INSERT INTO t3 VALUES('from', 'Alpine', 'snapshots');
+    INSERT INTO t3 VALUES('from', 'sometimes', 'unalike');
+    INSERT INTO t3 VALUES(1339.360726, 'light', 'have');
+    INSERT INTO t3 VALUES(6939937510, 3282306647, 'other');
+    INSERT INTO t3 VALUES('paintings', 8628034825, 'all');
+    INSERT INTO t3 VALUES('paintings', NULL, 'same');
+    INSERT INTO t3 VALUES('Alpine', 378678316.5, 'unalike');
+    INSERT INTO t3 VALUES('Alpine', NULL, 'same');
+    INSERT INTO t3 VALUES(1339.360726, 2847564.823, 'over');
+    INSERT INTO t3 VALUES('villages', 'their', 'have');
+    INSERT INTO t3 VALUES('unalike', 'remarkably', 'in');
+    INSERT INTO t3 VALUES('and', 8979323846, 'and');
+    INSERT INTO t3 VALUES(NULL, 1415926535, 'an');
+    INSERT INTO t3 VALUES(271.2019091, 8628034825, 0.4811174502);
+    INSERT INTO t3 VALUES('all', 3421170679, 'the');
+    INSERT INTO t3 VALUES('Not', 'and', 1415926535);
+    INSERT INTO t3 VALUES('of', 'other', 'light');
+    INSERT INTO t3 VALUES(NULL, 'towering', 'Not');
+    INSERT INTO t3 VALUES(346.0348610, NULL, 'other');
+    INSERT INTO t3 VALUES('Not', 378678316.5, NULL);
+    INSERT INTO t3 VALUES('snapshots', 8628034825, 'of');
+    INSERT INTO t3 VALUES(3282306647, 271.2019091, 'and');
+    INSERT INTO t3 VALUES(50.58223172, 378678316.5, 5028841971);
+    INSERT INTO t3 VALUES(50.58223172, 2643383279, 'snapshots');
+    INSERT INTO t3 VALUES('writings', 8979323846, 8979323846);
+    INSERT INTO t3 VALUES('onlookers', 'his', 'in');
+    INSERT INTO t3 VALUES('unalike', 8628034825, 1339.360726);
+    INSERT INTO t3 VALUES('of', 'Alpine', 'and');
+    INSERT INTO t3 VALUES('onlookers', NULL, 'from');
+    INSERT INTO t3 VALUES('writings', 'it', 1339.360726);
+    INSERT INTO t3 VALUES('it', 'and', 'villages');
+    INSERT INTO t3 VALUES('an', 'the', 'villages');
+    INSERT INTO t3 VALUES(8214808651, 8214808651, 'same');
+    INSERT INTO t3 VALUES(346.0348610, 'light', 1415926535);
+    INSERT INTO t3 VALUES(NULL, 8979323846, 'and');
+    INSERT INTO t3 VALUES(NULL, 'same', 1339.360726);
+    INSERT INTO t4 VALUES('his', 'from', 'an');
+    INSERT INTO t4 VALUES('snapshots', 'or', NULL);
+    INSERT INTO t4 VALUES('Alpine', 'have', 'it');
+    INSERT INTO t4 VALUES('have', 'peak', 'remarkably');
+    INSERT INTO t4 VALUES('hills', NULL, 'Not');
+    INSERT INTO t4 VALUES('same', 'from', 2643383279);
+    INSERT INTO t4 VALUES('have', 'angle', 8628034825);
+    INSERT INTO t4 VALUES('sometimes', 'it', 2847564.823);
+    INSERT INTO t4 VALUES(0938446095, 'peak', 'of');
+    INSERT INTO t4 VALUES(8628034825, 'and', 'same');
+    INSERT INTO t4 VALUES('and', 271.2019091, 'their');
+    INSERT INTO t4 VALUES('the', 'of', 'remarkably');
+    INSERT INTO t4 VALUES('and', 3421170679, 1415926535);
+    INSERT INTO t4 VALUES('and', 'in', 'all');
+    INSERT INTO t4 VALUES(378678316.5, 0.4811174502, 'snapshots');
+    INSERT INTO t4 VALUES('it', 'are', 'have');
+    INSERT INTO t4 VALUES('angle', 'snapshots', 378678316.5);
+    INSERT INTO t4 VALUES('from', 1415926535, 8628034825);
+    INSERT INTO t4 VALUES('snapshots', 'angle', 'have');
+    INSERT INTO t4 VALUES(3421170679, 0938446095, 'Not');
+    INSERT INTO t4 VALUES('peak', NULL, 0.4811174502);
+    INSERT INTO t4 VALUES('same', 'have', 'Alpine');
+    INSERT INTO t4 VALUES(271.2019091, 66.59334461, 0938446095);
+    INSERT INTO t4 VALUES(8979323846, 'his', 'an');
+    INSERT INTO t4 VALUES(NULL, 'and', 3282306647);
+    INSERT INTO t4 VALUES('remarkably', NULL, 'Not');
+    INSERT INTO t4 VALUES('villages', 4543.266482, 'his');
+    INSERT INTO t4 VALUES(2643383279, 'paintings', 'onlookers');
+    INSERT INTO t4 VALUES(1339.360726, 'of', 'the');
+    INSERT INTO t4 VALUES('peak', 'other', 'peak');
+    INSERT INTO t4 VALUES('it', 'or', 8979323846);
+    INSERT INTO t4 VALUES('onlookers', 'Not', 'towering');
+    INSERT INTO t4 VALUES(NULL, 'peak', 'Not');
+    INSERT INTO t4 VALUES('of', 'have', 6939937510);
+    INSERT INTO t4 VALUES('light', 'hills', 0.4811174502);
+    INSERT INTO t4 VALUES(5028841971, 'Not', 'it');
+    INSERT INTO t4 VALUES('and', 'Not', NULL);
+    INSERT INTO t4 VALUES(346.0348610, 'villages', NULL);
+    INSERT INTO t4 VALUES(8979323846, NULL, 6939937510);
+    INSERT INTO t4 VALUES('an', 'light', 'peak');
+    INSERT INTO t4 VALUES(5028841971, 6939937510, 'light');
+    INSERT INTO t4 VALUES('sometimes', 'peak', 'peak');
+    INSERT INTO t4 VALUES(378678316.5, 5028841971, 'an');
+    INSERT INTO t4 VALUES(378678316.5, 'his', 'Alpine');
+    INSERT INTO t4 VALUES('from', 'of', 'all');
+    INSERT INTO t4 VALUES(0938446095, 'same', NULL);
+    INSERT INTO t4 VALUES(0938446095, 'Alpine', NULL);
+    INSERT INTO t4 VALUES('his', 'of', 378678316.5);
+    INSERT INTO t4 VALUES(271.2019091, 'viewed', 3282306647);
+    INSERT INTO t4 VALUES('hills', 'all', 'peak');
+    CREATE TABLE t5(s);
+    INSERT INTO t5 VALUES('tab-t5');
+    CREATE TABLE t6(t);
+    INSERT INTO t6 VALUES(123456);
+    COMMIT;
+  }
+} {}
+
+catch {unset results}
+catch {unset A}
+catch {unset B}
+
+set A 2
+foreach idxsql {
+  { 
+    /* No indexes */ 
+  } {
+    CREATE INDEX i5 ON t3(a);
+  } {
+    CREATE INDEX i5 ON t3(a, b);
+    CREATE INDEX i6 ON t4(f);
+  } {
+    CREATE UNIQUE INDEX i5 ON t3(a, b);
+    CREATE INDEX i7 ON t3(c);
+    CREATE INDEX i6 ON t4(f);
+    CREATE INDEX i8 ON t4(h);
+  } {
+    CREATE INDEX i5 ON t3(a, b, c);
+    CREATE INDEX i6 ON t4(f, g, h);
+    CREATE INDEX i7 ON t3(c, b, a);
+    CREATE INDEX i8 ON t4(h, g, f);
+  }
+} {
+
+  execsql {
+    DROP INDEX IF EXISTS i5;
+    DROP INDEX IF EXISTS i6;
+    DROP INDEX IF EXISTS i7;
+    DROP INDEX IF EXISTS i8;
+  }
+  execsql $idxsql
+
+  foreach {B sql} {
+ 1  { SELECT * FROM t3 WHERE c LIKE b }
+ 2  { SELECT * FROM t3 WHERE c||'' LIKE 'the%' }
+ 3  { SELECT * FROM t3 WHERE rowid LIKE '12%' }
+ 4  { SELECT * FROM t3 WHERE +c LIKE 'the%' }
+ 5  { SELECT * FROM t3 WHERE c LIKE 'the%' }
+ 6  { SELECT * FROM t3 WHERE c GLOB '*llo' }
+
+ 7  { SELECT * FROM t3 WHERE a = 'angle' }
+ 8  { SELECT * FROM t3 WHERE a = 'it' OR b = 6939937510 }
+ 9  { SELECT * FROM t3, t4 WHERE a = 'painting' OR a = 'are' OR a = f }
+10  { SELECT * FROM t3, t4 WHERE a = 'all' OR a = 'and' OR a = h }
+11  { SELECT * FROM t3, t4 WHERE a < 'of' OR b > 346 AND c IS NULL }
+12  { SELECT * FROM t3, t4 WHERE 'the' > a OR b > 'have' AND c = 1415926535 }
+
+13  { SELECT * FROM t3 WHERE a BETWEEN 'one' AND 'two' OR a = 3421170679 }
+14  { SELECT * FROM t3 WHERE a BETWEEN 'one' AND 'two' OR a IS NULL }
+15  { SELECT * FROM t3 WHERE c > 'one' OR c >= 'one' OR c LIKE 'one%' }
+16  { SELECT * FROM t3 WHERE c > 'one' OR c = c OR c = a }
+17  { SELECT * FROM t3 WHERE c IS NULL OR a >= 'peak' }
+18  { SELECT * FROM t3 WHERE c IN ('other', 'all', 'snapshots') OR a>1 }
+19  { SELECT * FROM t3 WHERE c IN ('other', 'all', 'snapshots') AND a>1 }
+20  { SELECT * FROM t3 WHERE c IS NULL AND a>'one' }
+21  { SELECT * FROM t3 WHERE c IS NULL OR a>'one' }
+22  { SELECT * FROM t3 WHERE b = b AND a > 'are' }
+23  { SELECT * FROM t3 WHERE c <= b OR b < 'snapshots' }
+24  { SELECT * FROM t3 WHERE 'onlookers' >= c AND a <= b OR b = 'angle' }
+25  { SELECT * FROM t3 WHERE b = 'from' }
+26  { SELECT * FROM t3 WHERE b = 4543.266482 }
+27  { SELECT * FROM t3 WHERE c < 3282306647 }
+28  { SELECT * FROM t3 WHERE c IS NULL AND b >= c }
+29  { SELECT * FROM t3 WHERE b > 0.4811174502 AND c = 'other' AND 'viewed' > a }
+30  { SELECT * FROM t3 WHERE c = 'peak' }
+31  { SELECT * FROM t3 WHERE c < 53594.08128 OR c <= b }
+32  { SELECT * FROM t3 WHERE 'writings' <= b }
+33  { SELECT * FROM t3 WHERE 2643383279 = b OR c < b AND b <= 3282306647 }
+34  { SELECT * FROM t3 WHERE a IS NULL }
+35  { SELECT * FROM t3 WHERE 'writings' = a OR b = 378678316.5 }
+36  { SELECT * FROM t3 WHERE 'and' >= c }
+37  { SELECT * FROM t3 WHERE c < 'from' }
+38  { SELECT * FROM t3 WHERE 'his' < c OR b < b }
+39  { SELECT * FROM t3 WHERE 53594.08128 = b AND c >= b }
+40  { SELECT * FROM t3 WHERE 'unalike' < c AND 'are' >= c AND a <= b }
+41  { SELECT * FROM t3 WHERE b >= 4543.266482 OR 'Alpine' > a OR 271.2019091 <= a }
+42  { SELECT * FROM t3 WHERE b = c }
+43  { SELECT * FROM t3 WHERE c > a AND b < 'all' }
+44  { SELECT * FROM t3 WHERE c BETWEEN 'hills' AND 'snapshots' AND c <= 'the' OR c = a }
+45  { SELECT * FROM t3 WHERE b > c AND c >= 'hills' }
+46  { SELECT * FROM t3 WHERE b > 'or' OR a <= 'hills' OR c IS NULL }
+47  { SELECT * FROM t3 WHERE c > b OR b BETWEEN 1339.360726 AND 'onlookers' OR 1415926535 >= b }
+48  { SELECT * FROM t3 WHERE a IS NULL }
+49  { SELECT * FROM t3 WHERE a > 'other' }
+50  { SELECT * FROM t3 WHERE 'the' <= c AND a <= c }
+51  { SELECT * FROM t3 WHERE 346.0348610 = a AND c = b }
+52  { SELECT * FROM t3 WHERE c BETWEEN 50.58223172 AND 'same' AND a < b }
+53  { SELECT * FROM t3 WHERE 'Alpine' <= b AND c >= 'angle' OR b <= 271.2019091 }
+54  { SELECT * FROM t3 WHERE a < a AND 1415926535 > b }
+55  { SELECT * FROM t3 WHERE c > a AND 'have' >= c }
+56  { SELECT * FROM t3 WHERE b <= b AND c > b }
+57  { SELECT * FROM t3 WHERE a IS NULL AND c <= c }
+58  { SELECT * FROM t3 WHERE b < c OR b = c }
+59  { SELECT * FROM t3 WHERE c < b AND b >= 'it' }
+60  { SELECT * FROM t3 WHERE a = b AND a <= b OR b >= a }
+61  { SELECT * FROM t3 WHERE b = c }
+62  { SELECT * FROM t3 WHERE c BETWEEN 'the' AND 271.2019091 OR c <= 3282306647 AND c >= b }
+63  { SELECT * FROM t3 WHERE c >= c AND c < 'writings' }
+64  { SELECT * FROM t3 WHERE c <= 3282306647 AND b > a OR 'unalike' <= a }
+65  { SELECT * FROM t3 WHERE a > c }
+66  { SELECT * FROM t3 WHERE c = 'it' OR b >= b }
+67  { SELECT * FROM t3 WHERE c = a OR b < c }
+68  { SELECT * FROM t3 WHERE b > a }
+69  { SELECT * FROM t3 WHERE a < b OR a > 4543.266482 OR 'same' = b }
+70  { SELECT * FROM t3 WHERE c < c OR b <= c OR a <= b }
+71  { SELECT * FROM t3 WHERE c > a }
+72  { SELECT * FROM t3 WHERE c > b }
+73  { SELECT * FROM t3 WHERE b <= a }
+74  { SELECT * FROM t3 WHERE 3282306647 < b AND a >= 'or' OR a >= 378678316.5 }
+75  { SELECT * FROM t3 WHERE 50.58223172 <= c OR c = c AND b < b }
+76  { SELECT * FROM t3 WHERE 'and' < b OR b < c OR c > 1339.360726 }
+77  { SELECT * FROM t3 WHERE b <= c }
+78  { SELECT * FROM t3 WHERE 'in' <= c }
+79  { SELECT * FROM t3 WHERE c <= b AND a > a AND c < b }
+80  { SELECT * FROM t3 WHERE 'over' < b }
+81  { SELECT * FROM t3 WHERE b >= b OR b < c OR a < b }
+82  { SELECT * FROM t3 WHERE 'towering' <= b OR 'towering' = a AND c > b }
+83  { SELECT * FROM t3 WHERE 'peak' = a OR b BETWEEN 2643383279 AND 'the' }
+84  { SELECT * FROM t3 WHERE 'an' < c AND c > 'the' AND c IS NULL }
+85  { SELECT * FROM t3 WHERE a <= 'sometimes' AND a BETWEEN 'unalike' AND 1339.360726 }
+86  { SELECT * FROM t3 WHERE 1339.360726 < c AND c IS NULL }
+87  { SELECT * FROM t3 WHERE b > 'the' }
+88  { SELECT * FROM t3 WHERE 'and' = a }
+89  { SELECT * FROM t3 WHERE b >= b }
+90  { SELECT * FROM t3 WHERE b >= 8979323846 }
+91  { SELECT * FROM t3 WHERE c <= a }
+92  { SELECT * FROM t3 WHERE a BETWEEN 'have' AND 'light' OR a > b OR a >= 378678316.5 }
+93  { SELECT * FROM t3 WHERE c > 3282306647 }
+94  { SELECT * FROM t3 WHERE b > c }
+95  { SELECT * FROM t3 WHERE b >= a AND 'villages' > a AND b >= c }
+96  { SELECT * FROM t3 WHERE 'angle' > a }
+97  { SELECT * FROM t3 WHERE 'paintings' >= a }
+98  { SELECT * FROM t3 WHERE 'or' >= c }
+99  { SELECT * FROM t3 WHERE c < b }
+
+
+101  { SELECT * FROM t3, t4 WHERE f < 'sometimes' OR 'over' <= g AND h < 1415926535 }
+102  { SELECT * FROM t3, t4 WHERE h >= 'from' AND h < 6939937510 OR g > h }
+103  { SELECT * FROM t3, t4 WHERE c <= h AND g = h AND c >= 'all' }
+104  { SELECT * FROM t3, t4 WHERE c = a }
+105  { SELECT * FROM t3, t4 WHERE 'of' >= h }
+106  { SELECT * FROM t3, t4 WHERE f >= b AND a < g AND h < 'and' }
+107  { SELECT * FROM t3, t4 WHERE f <= 8628034825 AND 0938446095 >= b }
+108  { SELECT * FROM t3, t4 WHERE a < 'the' }
+109  { SELECT * FROM t3, t4 WHERE f = 'sometimes' OR b < 'of' }
+110  { SELECT * FROM t3, t4 WHERE c IS NULL }
+111  { SELECT * FROM t3, t4 WHERE 'have' = b OR g <= 346.0348610 }
+112  { SELECT * FROM t3, t4 WHERE f > b AND b <= h }
+113  { SELECT * FROM t3, t4 WHERE f > c OR 'the' = a OR 50.58223172 = a }
+114  { SELECT * FROM t3, t4 WHERE 2643383279 <= a AND c = a }
+115  { SELECT * FROM t3, t4 WHERE h >= b AND 'it' <= b }
+116  { SELECT * FROM t3, t4 WHERE g BETWEEN 'from' AND 'peak' }
+117  { SELECT * FROM t3, t4 WHERE 'their' > a AND g > b AND f <= c }
+118  { SELECT * FROM t3, t4 WHERE h = 5028841971 AND 'unalike' <= f }
+119  { SELECT * FROM t3, t4 WHERE c IS NULL AND a = 3282306647 OR a <= 'Alpine' }
+120  { SELECT * FROM t3, t4 WHERE 'sometimes' <= f OR 8214808651 >= a AND b <= 53594.08128 }
+121  { SELECT * FROM t3, t4 WHERE 6939937510 <= f OR c < f OR 'sometimes' = c }
+122  { SELECT * FROM t3, t4 WHERE b < 'onlookers' AND 'paintings' = g AND c <= h }
+123  { SELECT * FROM t3, t4 WHERE a BETWEEN 'all' AND 'from' OR c > 346.0348610 }
+124  { SELECT * FROM t3, t4 WHERE 'from' <= b OR a BETWEEN 53594.08128 AND 'their' AND c > a }
+125  { SELECT * FROM t3, t4 WHERE h = 2643383279 }
+126  { SELECT * FROM t3, t4 WHERE a <= 'the' }
+127  { SELECT * FROM t3, t4 WHERE h <= c }
+128  { SELECT * FROM t3, t4 WHERE g <= 346.0348610 AND 66.59334461 >= f AND f <= f }
+129  { SELECT * FROM t3, t4 WHERE g >= c OR 'in' < b OR b > g }
+130  { SELECT * FROM t3, t4 WHERE 'over' > g AND b BETWEEN 'unalike' AND 'remarkably' }
+131  { SELECT * FROM t3, t4 WHERE h <= 2847564.823 }
+132  { SELECT * FROM t3, t4 WHERE h <= 'remarkably' AND 4543.266482 > h }
+133  { SELECT * FROM t3, t4 WHERE a >= c AND 'it' > g AND c < c }
+134  { SELECT * FROM t3, t4 WHERE h <= 66.59334461 AND b > 3421170679 }
+135  { SELECT * FROM t3, t4 WHERE h < 'are' OR f BETWEEN 0938446095 AND 'are' OR b = b }
+136  { SELECT * FROM t3, t4 WHERE h = a OR 66.59334461 <= f }
+137  { SELECT * FROM t3, t4 WHERE f > 'of' OR h <= h OR a = f }
+138  { SELECT * FROM t3, t4 WHERE 'other' >= g }
+139  { SELECT * FROM t3, t4 WHERE b <= 3421170679 }
+140  { SELECT * FROM t3, t4 WHERE 'all' = f AND 4543.266482 = b OR f BETWEEN 'and' AND 'angle' }
+141  { SELECT * FROM t3, t4 WHERE 'light' = f OR h BETWEEN 'remarkably' AND 1415926535 }
+142  { SELECT * FROM t3, t4 WHERE 'hills' = f OR 'the' >= f }
+143  { SELECT * FROM t3, t4 WHERE a > 346.0348610 }
+144  { SELECT * FROM t3, t4 WHERE 5028841971 = h }
+145  { SELECT * FROM t3, t4 WHERE b >= c AND 'the' >= g OR 45.64856692 <= g }
+146  { SELECT * FROM t3, t4 WHERE c < 5028841971 }
+147  { SELECT * FROM t3, t4 WHERE a > a }
+148  { SELECT * FROM t3, t4 WHERE c = 'snapshots' }
+149  { SELECT * FROM t3, t4 WHERE h > 1339.360726 AND 'and' > c }
+150  { SELECT * FROM t3, t4 WHERE 'and' > g OR 'sometimes' = c }
+151  { SELECT * FROM t3, t4 WHERE g >= 'the' AND b >= 'onlookers' }
+152  { SELECT * FROM t3, t4 WHERE h BETWEEN 'other' AND 2643383279 }
+153  { SELECT * FROM t3, t4 WHERE 'it' = b }
+154  { SELECT * FROM t3, t4 WHERE f = c OR c BETWEEN 'and' AND 0.4811174502 }
+155  { SELECT * FROM t3, t4 WHERE b <= 'sometimes' OR c <= 0938446095 }
+156  { SELECT * FROM t3, t4 WHERE 'and' <= b }
+157  { SELECT * FROM t3, t4 WHERE g > a AND f = 'the' AND b < a }
+158  { SELECT * FROM t3, t4 WHERE a < 'an' }
+159  { SELECT * FROM t3, t4 WHERE a BETWEEN 'his' AND 'same' OR 8628034825 > f }
+160  { SELECT * FROM t3, t4 WHERE b = 'peak' }
+161  { SELECT * FROM t3, t4 WHERE f IS NULL AND a >= h }
+162  { SELECT * FROM t3, t4 WHERE a IS NULL OR 2643383279 = c }
+163  { SELECT * FROM t3, t4 WHERE b >= 5028841971 AND f < c AND a IS NULL }
+164  { SELECT * FROM t3, t4 WHERE a >= g }
+165  { SELECT * FROM t3, t4 WHERE c IS NULL }
+166  { SELECT * FROM t3, t4 WHERE h >= h }
+167  { SELECT * FROM t3, t4 WHERE 'over' <= h }
+168  { SELECT * FROM t3, t4 WHERE b < 4543.266482 OR b = 2643383279 OR 8628034825 < b }
+169  { SELECT * FROM t3, t4 WHERE g >= 6939937510 }
+170  { SELECT * FROM t3, t4 WHERE 'or' < a OR b < g }
+171  { SELECT * FROM t3, t4 WHERE h < 'hills' OR 'and' > g }
+172  { SELECT * FROM t3, t4 WHERE 'from' > f OR f <= f }
+173  { SELECT * FROM t3, t4 WHERE 'viewed' > b AND f < c }
+174  { SELECT * FROM t3, t4 WHERE 'of' <= a }
+175  { SELECT * FROM t3, t4 WHERE f > 0938446095 }
+176  { SELECT * FROM t3, t4 WHERE a = g }
+177  { SELECT * FROM t3, t4 WHERE g >= b AND f BETWEEN 'peak' AND 'and' }
+178  { SELECT * FROM t3, t4 WHERE g = a AND 'it' > f }
+179  { SELECT * FROM t3, t4 WHERE a <= b OR 'from' > f }
+180  { SELECT * FROM t3, t4 WHERE f < 'and' }
+181  { SELECT * FROM t3, t4 WHERE 6939937510 < b OR 'sometimes' < h }
+182  { SELECT * FROM t3, t4 WHERE f > g AND f < 'peak' }
+183  { SELECT * FROM t3, t4 WHERE a <= 53594.08128 AND c <= f AND f >= c }
+184  { SELECT * FROM t3, t4 WHERE f = c OR 'it' > b OR g BETWEEN 'the' AND 'all' }
+185  { SELECT * FROM t3, t4 WHERE c <= g OR a = h }
+186  { SELECT * FROM t3, t4 WHERE 'same' = b OR c >= 2643383279 }
+187  { SELECT * FROM t3, t4 WHERE h <= g OR c > 66.59334461 OR a <= f }
+188  { SELECT * FROM t3, t4 WHERE b < c AND f = 'writings' }
+189  { SELECT * FROM t3, t4 WHERE b < a }
+190  { SELECT * FROM t3, t4 WHERE c >= f OR c = 'and' }
+191  { SELECT * FROM t3, t4 WHERE f >= 'peak' AND g > f AND h > g }
+192  { SELECT * FROM t3, t4 WHERE a >= 8979323846 AND 'same' > b OR c = 'and' }
+193  { SELECT * FROM t3, t4 WHERE c >= g OR 'writings' >= c AND b = 'all' }
+194  { SELECT * FROM t3, t4 WHERE 'remarkably' < g }
+195  { SELECT * FROM t3, t4 WHERE a BETWEEN 'or' AND 'paintings' AND g <= f }
+196  { SELECT * FROM t3, t4 WHERE 0938446095 > b OR g <= a OR h > b }
+197  { SELECT * FROM t3, t4 WHERE g = 2643383279 AND f = g }
+198  { SELECT * FROM t3, t4 WHERE g < 8979323846 }
+199  { SELECT * FROM t3, t4 WHERE 'are' <= b }
+200  { SELECT * FROM t3, t4 WHERE (a=1415926535 AND f=8628034825)
+                               OR (a=6939937510 AND f=2643383279) }
+201  { SELECT * FROM t3, t4, t5, t6
+        WHERE (a=1415926535 AND f=8628034825 AND s!='hello' AND t!=5)
+           OR (a=6939937510 AND f=2643383279 AND s='tab-t5' AND t=123456) }
+202  { SELECT * FROM t3, t4, t5, t6
+        WHERE (a=1415926535 AND f=8628034825 AND s!='hello' AND t==5)
+           OR (a=6939937510 AND f=2643383279 AND s='tab-t5' AND t!=123456) }
+
+  } {
+    do_test where8-4.$A.$B.1 {
+      unset -nocomplain R
+      set R [execsql $sql]
+      if {![info exists results($B)]} {
+        set results($B) $R
+      }
+      list
+    } {}
+
+    do_test where8-4.$A.$B.2 { lsort $R } [lsort $results($B)]
+  }
+  incr A
+}
+catch {unset results}
+catch {unset A}
+catch {unset B}
+
+# At one point the following tests provoked an invalid write error (writing
+# to memory that had already been freed). It was not possible to demonstrate
+# that this bug could cause a query to return bad data.
+# 
+do_test where8-5.1 {
+  db close
+  sqlite3 db test.db
+  sqlite3_db_config_lookaside db 0 0 0
+  execsql {
+    CREATE TABLE tA(
+      a, b, c, d, e, f, g, h, 
+      i, j, k, l, m, n, o, p
+    );
+  }
+  execsql {
+    SELECT * FROM tA WHERE
+      a=1 AND b=2 AND c=3 AND d=4 AND e=5 AND f=6 AND g=7 AND h=8 AND
+      i=1 AND j=2 AND k=3 AND l=4 AND m=5 AND n=6 AND o=7 AND
+      (p = 1 OR p = 2 OR p = 3)
+  }
+} {}
+do_test where8-5.2 {
+  execsql {
+    SELECT * FROM tA WHERE
+      a=1 AND b=2 AND c=3 AND d=4 AND e=5 AND f=6 AND g=7 AND h=8 AND
+      i=1 AND j=2 AND k=3 AND l=4 AND m=5 AND
+      (p = 1 OR p = 2 OR p = 3) AND n=6 AND o=7
+  }
+} {}
+do_test where8-5.3 {
+  execsql {
+    INSERT INTO tA VALUES(1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 3, 4, 5, 6, 7, 8); 
+    CREATE UNIQUE INDEX tAI ON tA(p);
+    CREATE TABLE tB(x);
+    INSERT INTO tB VALUES('x');
+  }
+  execsql {
+    SELECT a, x FROM tA LEFT JOIN tB ON (
+      a=1 AND b=2 AND c=3 AND d=4 AND e=5 AND f=6 AND g=7 AND h=8 AND
+      i=1 AND j=2 AND k=3 AND l=4 AND m=5 AND n=6 AND o=7 AND
+      (p = 1 OR p = 2 OR p = 3)
+    )
+  }
+} {1 {}}
+
+# The OR optimization and WITHOUT ROWID
+#
+do_execsql_test where8-6.1 {
+  CREATE TABLE t600(a PRIMARY KEY, b) WITHOUT rowid;
+  CREATE INDEX t600b ON t600(b);
+  INSERT INTO t600 VALUES('state','screen'),('exact','dolphin'),('green','mercury');
+  SELECT a, b, '|' FROM t600 WHERE a=='state' OR b='mercury' ORDER BY +a;
+} {green mercury | state screen |}
+
+finish_test
diff --git a/test/where9.test b/test/where9.test
new file mode 100644
index 0000000000000000000000000000000000000000..475788153247495df176ab3c0fb3c232518e2e3d
--- /dev/null
+++ b/test/where9.test
@@ -0,0 +1,1004 @@
+# 2008 December 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the multi-index OR clause optimizer.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !or_opt||!compound {
+  finish_test
+  return
+}
+
+# Evaluate SQL.  Return the result set followed by the
+# and the number of full-scan steps.
+#
+proc count_steps {sql} {
+  set r [db eval $sql]
+  lappend r scan [db status step] sort [db status sort]
+}
+
+
+# Construct test data.  
+# 
+do_test where9-1.1 {
+  db eval {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY,b,c,d,e,f,g);
+    INSERT INTO t1 VALUES(1,11,1001,1.001,100.1,'bcdefghij','yxwvuts');
+    INSERT INTO t1 VALUES(2,22,1001,2.002,100.1,'cdefghijk','yxwvuts');
+    INSERT INTO t1 VALUES(3,33,1001,3.003,100.1,'defghijkl','xwvutsr');
+    INSERT INTO t1 VALUES(4,44,2002,4.004,200.2,'efghijklm','xwvutsr');
+    INSERT INTO t1 VALUES(5,55,2002,5.005,200.2,'fghijklmn','xwvutsr');
+    INSERT INTO t1 VALUES(6,66,2002,6.006,200.2,'ghijklmno','xwvutsr');
+    INSERT INTO t1 VALUES(7,77,3003,7.007,300.3,'hijklmnop','xwvutsr');
+    INSERT INTO t1 VALUES(8,88,3003,8.008,300.3,'ijklmnopq','wvutsrq');
+    INSERT INTO t1 VALUES(9,99,3003,9.009,300.3,'jklmnopqr','wvutsrq');
+    INSERT INTO t1 VALUES(10,110,4004,10.01,400.4,'klmnopqrs','wvutsrq');
+    INSERT INTO t1 VALUES(11,121,4004,11.011,400.4,'lmnopqrst','wvutsrq');
+    INSERT INTO t1 VALUES(12,132,4004,12.012,400.4,'mnopqrstu','wvutsrq');
+    INSERT INTO t1 VALUES(13,143,5005,13.013,500.5,'nopqrstuv','vutsrqp');
+    INSERT INTO t1 VALUES(14,154,5005,14.014,500.5,'opqrstuvw','vutsrqp');
+    INSERT INTO t1 VALUES(15,165,5005,15.015,500.5,'pqrstuvwx','vutsrqp');
+    INSERT INTO t1 VALUES(16,176,6006,16.016,600.6,'qrstuvwxy','vutsrqp');
+    INSERT INTO t1 VALUES(17,187,6006,17.017,600.6,'rstuvwxyz','vutsrqp');
+    INSERT INTO t1 VALUES(18,198,6006,18.018,600.6,'stuvwxyza','utsrqpo');
+    INSERT INTO t1 VALUES(19,209,7007,19.019,700.7,'tuvwxyzab','utsrqpo');
+    INSERT INTO t1 VALUES(20,220,7007,20.02,700.7,'uvwxyzabc','utsrqpo');
+    INSERT INTO t1 VALUES(21,231,7007,21.021,700.7,'vwxyzabcd','utsrqpo');
+    INSERT INTO t1 VALUES(22,242,8008,22.022,800.8,'wxyzabcde','utsrqpo');
+    INSERT INTO t1 VALUES(23,253,8008,23.023,800.8,'xyzabcdef','tsrqpon');
+    INSERT INTO t1 VALUES(24,264,8008,24.024,800.8,'yzabcdefg','tsrqpon');
+    INSERT INTO t1 VALUES(25,275,9009,25.025,900.9,'zabcdefgh','tsrqpon');
+    INSERT INTO t1 VALUES(26,286,9009,26.026,900.9,'abcdefghi','tsrqpon');
+    INSERT INTO t1 VALUES(27,297,9009,27.027,900.9,'bcdefghij','tsrqpon');
+    INSERT INTO t1 VALUES(28,308,10010,28.028,1001.0,'cdefghijk','srqponm');
+    INSERT INTO t1 VALUES(29,319,10010,29.029,1001.0,'defghijkl','srqponm');
+    INSERT INTO t1 VALUES(30,330,10010,30.03,1001.0,'efghijklm','srqponm');
+    INSERT INTO t1 VALUES(31,341,11011,31.031,1101.1,'fghijklmn','srqponm');
+    INSERT INTO t1 VALUES(32,352,11011,32.032,1101.1,'ghijklmno','srqponm');
+    INSERT INTO t1 VALUES(33,363,11011,33.033,1101.1,'hijklmnop','rqponml');
+    INSERT INTO t1 VALUES(34,374,12012,34.034,1201.2,'ijklmnopq','rqponml');
+    INSERT INTO t1 VALUES(35,385,12012,35.035,1201.2,'jklmnopqr','rqponml');
+    INSERT INTO t1 VALUES(36,396,12012,36.036,1201.2,'klmnopqrs','rqponml');
+    INSERT INTO t1 VALUES(37,407,13013,37.037,1301.3,'lmnopqrst','rqponml');
+    INSERT INTO t1 VALUES(38,418,13013,38.038,1301.3,'mnopqrstu','qponmlk');
+    INSERT INTO t1 VALUES(39,429,13013,39.039,1301.3,'nopqrstuv','qponmlk');
+    INSERT INTO t1 VALUES(40,440,14014,40.04,1401.4,'opqrstuvw','qponmlk');
+    INSERT INTO t1 VALUES(41,451,14014,41.041,1401.4,'pqrstuvwx','qponmlk');
+    INSERT INTO t1 VALUES(42,462,14014,42.042,1401.4,'qrstuvwxy','qponmlk');
+    INSERT INTO t1 VALUES(43,473,15015,43.043,1501.5,'rstuvwxyz','ponmlkj');
+    INSERT INTO t1 VALUES(44,484,15015,44.044,1501.5,'stuvwxyza','ponmlkj');
+    INSERT INTO t1 VALUES(45,495,15015,45.045,1501.5,'tuvwxyzab','ponmlkj');
+    INSERT INTO t1 VALUES(46,506,16016,46.046,1601.6,'uvwxyzabc','ponmlkj');
+    INSERT INTO t1 VALUES(47,517,16016,47.047,1601.6,'vwxyzabcd','ponmlkj');
+    INSERT INTO t1 VALUES(48,528,16016,48.048,1601.6,'wxyzabcde','onmlkji');
+    INSERT INTO t1 VALUES(49,539,17017,49.049,1701.7,'xyzabcdef','onmlkji');
+    INSERT INTO t1 VALUES(50,550,17017,50.05,1701.7,'yzabcdefg','onmlkji');
+    INSERT INTO t1 VALUES(51,561,17017,51.051,1701.7,'zabcdefgh','onmlkji');
+    INSERT INTO t1 VALUES(52,572,18018,52.052,1801.8,'abcdefghi','onmlkji');
+    INSERT INTO t1 VALUES(53,583,18018,53.053,1801.8,'bcdefghij','nmlkjih');
+    INSERT INTO t1 VALUES(54,594,18018,54.054,1801.8,'cdefghijk','nmlkjih');
+    INSERT INTO t1 VALUES(55,605,19019,55.055,1901.9,'defghijkl','nmlkjih');
+    INSERT INTO t1 VALUES(56,616,19019,56.056,1901.9,'efghijklm','nmlkjih');
+    INSERT INTO t1 VALUES(57,627,19019,57.057,1901.9,'fghijklmn','nmlkjih');
+    INSERT INTO t1 VALUES(58,638,20020,58.058,2002.0,'ghijklmno','mlkjihg');
+    INSERT INTO t1 VALUES(59,649,20020,59.059,2002.0,'hijklmnop','mlkjihg');
+    INSERT INTO t1 VALUES(60,660,20020,60.06,2002.0,'ijklmnopq','mlkjihg');
+    INSERT INTO t1 VALUES(61,671,21021,61.061,2102.1,'jklmnopqr','mlkjihg');
+    INSERT INTO t1 VALUES(62,682,21021,62.062,2102.1,'klmnopqrs','mlkjihg');
+    INSERT INTO t1 VALUES(63,693,21021,63.063,2102.1,'lmnopqrst','lkjihgf');
+    INSERT INTO t1 VALUES(64,704,22022,64.064,2202.2,'mnopqrstu','lkjihgf');
+    INSERT INTO t1 VALUES(65,715,22022,65.065,2202.2,'nopqrstuv','lkjihgf');
+    INSERT INTO t1 VALUES(66,726,22022,66.066,2202.2,'opqrstuvw','lkjihgf');
+    INSERT INTO t1 VALUES(67,737,23023,67.067,2302.3,'pqrstuvwx','lkjihgf');
+    INSERT INTO t1 VALUES(68,748,23023,68.068,2302.3,'qrstuvwxy','kjihgfe');
+    INSERT INTO t1 VALUES(69,759,23023,69.069,2302.3,'rstuvwxyz','kjihgfe');
+    INSERT INTO t1 VALUES(70,770,24024,70.07,2402.4,'stuvwxyza','kjihgfe');
+    INSERT INTO t1 VALUES(71,781,24024,71.071,2402.4,'tuvwxyzab','kjihgfe');
+    INSERT INTO t1 VALUES(72,792,24024,72.072,2402.4,'uvwxyzabc','kjihgfe');
+    INSERT INTO t1 VALUES(73,803,25025,73.073,2502.5,'vwxyzabcd','jihgfed');
+    INSERT INTO t1 VALUES(74,814,25025,74.074,2502.5,'wxyzabcde','jihgfed');
+    INSERT INTO t1 VALUES(75,825,25025,75.075,2502.5,'xyzabcdef','jihgfed');
+    INSERT INTO t1 VALUES(76,836,26026,76.076,2602.6,'yzabcdefg','jihgfed');
+    INSERT INTO t1 VALUES(77,847,26026,77.077,2602.6,'zabcdefgh','jihgfed');
+    INSERT INTO t1 VALUES(78,858,26026,78.078,2602.6,'abcdefghi','ihgfedc');
+    INSERT INTO t1 VALUES(79,869,27027,79.079,2702.7,'bcdefghij','ihgfedc');
+    INSERT INTO t1 VALUES(80,880,27027,80.08,2702.7,'cdefghijk','ihgfedc');
+    INSERT INTO t1 VALUES(81,891,27027,81.081,2702.7,'defghijkl','ihgfedc');
+    INSERT INTO t1 VALUES(82,902,28028,82.082,2802.8,'efghijklm','ihgfedc');
+    INSERT INTO t1 VALUES(83,913,28028,83.083,2802.8,'fghijklmn','hgfedcb');
+    INSERT INTO t1 VALUES(84,924,28028,84.084,2802.8,'ghijklmno','hgfedcb');
+    INSERT INTO t1 VALUES(85,935,29029,85.085,2902.9,'hijklmnop','hgfedcb');
+    INSERT INTO t1 VALUES(86,946,29029,86.086,2902.9,'ijklmnopq','hgfedcb');
+    INSERT INTO t1 VALUES(87,957,29029,87.087,2902.9,'jklmnopqr','hgfedcb');
+    INSERT INTO t1 VALUES(88,968,30030,88.088,3003.0,'klmnopqrs','gfedcba');
+    INSERT INTO t1 VALUES(89,979,30030,89.089,3003.0,'lmnopqrst','gfedcba');
+    INSERT INTO t1 VALUES(90,NULL,30030,90.09,3003.0,'mnopqrstu','gfedcba');
+    INSERT INTO t1 VALUES(91,1001,NULL,91.091,3103.1,'nopqrstuv','gfedcba');
+    INSERT INTO t1 VALUES(92,1012,31031,NULL,3103.1,'opqrstuvw','gfedcba');
+    INSERT INTO t1 VALUES(93,1023,31031,93.093,NULL,'pqrstuvwx','fedcbaz');
+    INSERT INTO t1 VALUES(94,1034,32032,94.094,3203.2,NULL,'fedcbaz');
+    INSERT INTO t1 VALUES(95,1045,32032,95.095,3203.2,'rstuvwxyz',NULL);
+    INSERT INTO t1 VALUES(96,NULL,NULL,96.096,3203.2,'stuvwxyza','fedcbaz');
+    INSERT INTO t1 VALUES(97,1067,33033,NULL,NULL,'tuvwxyzab','fedcbaz');
+    INSERT INTO t1 VALUES(98,1078,33033,98.098,3303.3,NULL,NULL);
+    INSERT INTO t1 VALUES(99,NULL,NULL,NULL,NULL,NULL,NULL);
+    CREATE INDEX t1b ON t1(b);
+    CREATE INDEX t1c ON t1(c);
+    CREATE INDEX t1d ON t1(d);
+    CREATE INDEX t1e ON t1(e);
+    CREATE INDEX t1f ON t1(f);
+    CREATE INDEX t1g ON t1(g);
+    CREATE TABLE t2(a INTEGER PRIMARY KEY,b,c,d,e,f,g);
+    INSERT INTO t2 SELECT * FROM t1;
+    CREATE INDEX t2b ON t2(b,c);
+    CREATE INDEX t2c ON t2(c,e);
+    CREATE INDEX t2d ON t2(d,g);
+    CREATE INDEX t2e ON t2(e,f,g);
+    CREATE INDEX t2f ON t2(f,b,d,c);
+    CREATE INDEX t2g ON t2(g,f);
+    CREATE TABLE t3(x,y);
+    INSERT INTO t3 VALUES(1,80);
+    INSERT INTO t3 VALUES(2,80);
+    CREATE TABLE t4(a INTEGER PRIMARY KEY,b,c,d,e,f,g);
+    INSERT INTO t4 SELECT * FROM t1;
+    CREATE INDEX t4b ON t4(b);
+    CREATE INDEX t4c ON t4(c);
+  }
+} {}
+
+do_test where9-1.2.1 {
+  count_steps {
+    SELECT a FROM t1
+     WHERE b IS NULL
+        OR c IS NULL
+        OR d IS NULL
+    ORDER BY a
+  }
+} {90 91 92 96 97 99 scan 0 sort 1}
+do_test where9-1.2.2 {
+  count_steps {
+    SELECT a FROM t1
+     WHERE +b IS NULL
+        OR c IS NULL
+        OR d IS NULL
+    ORDER BY a
+  }
+} {90 91 92 96 97 99 scan 98 sort 0}
+do_test where9-1.2.3 {
+  count_steps {
+    SELECT a FROM t1
+     WHERE b IS NULL
+        OR +c IS NULL
+        OR d IS NULL
+    ORDER BY a
+  }
+} {90 91 92 96 97 99 scan 98 sort 0}
+do_test where9-1.2.4 {
+  count_steps {
+    SELECT a FROM t1
+     WHERE b IS NULL
+        OR c IS NULL
+        OR +d IS NULL
+    ORDER BY a
+  }
+} {90 91 92 96 97 99 scan 98 sort 0}
+do_test where9-1.2.5 {
+  count_steps {
+    SELECT a FROM t4
+     WHERE b IS NULL
+        OR c IS NULL
+        OR d IS NULL
+    ORDER BY a
+  }
+} {90 91 92 96 97 99 scan 98 sort 0}
+
+do_test where9-1.3.1 {
+  count_steps {
+    SELECT a FROM t1
+     WHERE (b IS NULL AND c NOT NULL AND d NOT NULL)
+        OR (b NOT NULL AND c IS NULL AND d NOT NULL)
+        OR (b NOT NULL AND c NOT NULL AND d IS NULL)
+    ORDER BY a
+  }
+} {90 91 92 97 scan 0 sort 1}
+do_test where9-1.3.2 {
+  count_steps {
+    SELECT a FROM t4
+     WHERE (b IS NULL AND c NOT NULL AND d NOT NULL)
+        OR (b NOT NULL AND c IS NULL AND d NOT NULL)
+        OR (b NOT NULL AND c NOT NULL AND d IS NULL)
+    ORDER BY a
+  }
+} {90 91 92 97 scan 98 sort 0}
+do_test where9-1.3.3 {
+  count_steps {
+    SELECT a FROM t4
+     WHERE (b NOT NULL AND c NOT NULL AND d IS NULL)
+        OR (b IS NULL AND c NOT NULL AND d NOT NULL)
+        OR (b NOT NULL AND c IS NULL AND d NOT NULL)
+    ORDER BY a
+  }
+} {90 91 92 97 scan 98 sort 0}
+do_test where9-1.3.4 {
+  count_steps {
+    SELECT a FROM (t4)
+     WHERE (b IS NULL AND c NOT NULL AND d NOT NULL)
+        OR (b NOT NULL AND c NOT NULL AND d IS NULL)
+        OR (b NOT NULL AND c IS NULL AND d NOT NULL)
+    ORDER BY a
+  }
+} {90 91 92 97 scan 98 sort 0}
+
+do_test where9-1.4 {
+  count_steps {
+    SELECT a FROM t1
+     WHERE (b>=950 AND b<=1010) OR (b IS NULL AND c NOT NULL)
+    ORDER BY a
+  }
+} {87 88 89 90 91 scan 0 sort 1}
+do_test where9-1.5 {
+  # When this test was originally written, SQLite used a rowset object 
+  # to optimize the "ORDER BY a" clause. Now that it is using a rowhash,
+  # this is not possible. So we have to comment out one term of the OR
+  # expression in order to prevent SQLite from deeming a full-table
+  # scan to be a better strategy than using multiple indexes, which would
+  # defeat the point of the test.
+  count_steps {
+    SELECT a FROM t1
+     WHERE a=83
+        OR b=913
+        OR c=28028
+        OR (d>=82 AND d<83)
+/*      OR (e>2802 AND e<2803)  */
+        OR f='fghijklmn'
+        OR g='hgfedcb'
+    ORDER BY a
+  }
+} {5 31 57 82 83 84 85 86 87 scan 0 sort 1}
+do_test where9-1.6 {
+  count_steps {
+    SELECT a FROM t1
+     WHERE b=1012
+        OR (d IS NULL AND e IS NOT NULL)
+  }
+} {92 scan 0 sort 0}
+do_test where9-1.7 {
+  count_steps {
+    SELECT a FROM t1
+     WHERE (b=1012 OR (d IS NULL AND e IS NOT NULL))
+       AND f!=g
+  }
+} {92 scan 0 sort 0}
+do_test where9-1.8 {
+  count_steps {
+    SELECT a FROM t1
+     WHERE (b=1012 OR (d IS NULL AND e IS NOT NULL))
+       AND f==g
+  }
+} {scan 0 sort 0}
+
+do_test where9-2.1 {
+  count_steps {
+    SELECT t2.a FROM t1, t2
+     WHERE t1.a=80
+       AND (t1.c=t2.c OR t1.d=t2.d)
+    ORDER BY 1
+  }
+} {79 80 81 scan 0 sort 1}
+do_test where9-2.2 {
+  count_steps {
+    SELECT t2.a FROM t1, t2
+     WHERE t1.a=80
+       AND ((t1.c=t2.c AND t1.d=t2.d) OR t1.f=t2.f)
+    ORDER BY 1
+  }
+} {2 28 54 80 scan 0 sort 1}
+do_test where9-2.3 {
+  count_steps {
+    SELECT coalesce(t2.a,9999)
+      FROM t1 LEFT JOIN t2 ON (t1.c=t2.c AND t1.d=t2.d) OR t1.f=t2.f
+     WHERE t1.a=80
+    ORDER BY 1
+  }
+} {2 28 54 80 scan 0 sort 1}
+do_test where9-2.4 {
+  count_steps {
+    SELECT coalesce(t2.a,9999)
+      FROM t1 LEFT JOIN t2 ON (t1.c+1=t2.c AND t1.d=t2.d) OR (t1.f||'x')=t2.f
+     WHERE t1.a=80
+    ORDER BY 1
+  }
+} {9999 scan 0 sort 1}
+do_test where9-2.5 {
+  count_steps {
+    SELECT t1.a, coalesce(t2.a,9999)
+      FROM t1 LEFT JOIN t2 ON (t1.c=t2.c AND t1.d=t2.d) OR (t1.f)=t2.f
+     WHERE t1.a=80 OR t1.b=880 OR (t1.c=27027 AND round(t1.d)==80)
+    ORDER BY 1
+  }
+} {80 80 80 2 80 28 80 54 scan 0 sort 1}
+do_test where9-2.6 {
+  count_steps {
+    SELECT t1.a, coalesce(t2.a,9999)
+      FROM t1 LEFT JOIN t2 ON (t1.c+1=t2.c AND t1.d=t2.d) OR (t1.f||'x')=t2.f
+     WHERE t1.a=80 OR t1.b=880 OR (t1.c=27027 AND round(t1.d)==80)
+    ORDER BY 1
+  }
+} {80 9999 scan 0 sort 1}
+do_test where9-2.7 {
+  count_steps {
+    SELECT t3.x, t1.a, coalesce(t2.a,9999)
+      FROM t3 JOIN
+           t1 LEFT JOIN t2 ON (t1.c+1=t2.c AND t1.d=t2.d) OR (t1.f||'x')=t2.f
+     WHERE t1.a=t3.y OR t1.b=t3.y*11 OR (t1.c=27027 AND round(t1.d)==80)
+    ORDER BY 1, 2
+  }
+} {1 80 9999 2 80 9999 scan 1 sort 1}
+do_test where9-2.8 {
+  count_steps {
+    SELECT t3.x, t1.a, coalesce(t2.a,9999)
+      FROM t3 JOIN
+           t1 LEFT JOIN t2 ON (t1.c=t2.c AND t1.d=t2.d) OR (t1.f)=t2.f
+     WHERE t1.a=t3.y OR t1.b=t3.y*11 OR (t1.c=27027 AND round(t1.d)==80)
+    ORDER BY 1, 2, 3
+  }
+} {1 80 2 1 80 28 1 80 54 1 80 80 2 80 2 2 80 28 2 80 54 2 80 80 scan 1 sort 1}
+
+
+ifcapable explain {
+  do_eqp_test where9-3.1 {
+    SELECT t2.a FROM t1, t2
+    WHERE t1.a=80 AND ((t1.c=t2.c AND t1.d=t2.d) OR t1.f=t2.f)
+  } [string map {"\n  " \n} {
+    QUERY PLAN
+    |--SEARCH t1 USING INTEGER PRIMARY KEY (rowid=?)
+    `--MULTI-INDEX OR
+       |--INDEX 1
+       |  `--SEARCH t2 USING INDEX t2d (d=?)
+       `--INDEX 3
+          `--SEARCH t2 USING COVERING INDEX t2f (f=?)
+  }]
+  do_eqp_test where9-3.2 {
+    SELECT coalesce(t2.a,9999)
+    FROM t1 LEFT JOIN t2 ON (t1.c+1=t2.c AND t1.d=t2.d) OR (t1.f||'x')=t2.f
+    WHERE t1.a=80
+  } [string map {"\n  " \n} {
+    QUERY PLAN
+    |--SEARCH t1 USING INTEGER PRIMARY KEY (rowid=?)
+    `--MULTI-INDEX OR
+       |--INDEX 1
+       |  `--SEARCH t2 USING INDEX t2d (d=?) LEFT-JOIN
+       `--INDEX 2
+          `--SEARCH t2 USING COVERING INDEX t2f (f=?) LEFT-JOIN
+  }]
+} 
+
+# Make sure that INDEXED BY and multi-index OR clauses play well with
+# one another.
+#
+do_test where9-4.1 {
+  count_steps {
+    SELECT a FROM t1
+     WHERE b>1000
+       AND (c=31031 OR d IS NULL)
+     ORDER BY +a
+  }
+} {92 93 97 scan 0 sort 1}
+do_test where9-4.2 {
+  count_steps {
+    SELECT a FROM t1
+     WHERE b>1000
+       AND (c=31031 OR +d IS NULL)
+     ORDER BY +a
+  }
+} {92 93 97 scan 0 sort 1}
+do_test where9-4.3 {
+  count_steps {
+    SELECT a FROM t1
+     WHERE +b>1000
+       AND (c=31031 OR d IS NULL)
+     ORDER BY +a
+  }
+} {92 93 97 scan 0 sort 1}
+do_test where9-4.4 {
+  count_steps {
+    SELECT a FROM t1 INDEXED BY t1b
+     WHERE b>1000
+       AND (c=31031 OR d IS NULL)
+     ORDER BY +a
+  }
+} {92 93 97 scan 0 sort 1}
+do_test where9-4.5 {
+  catchsql {
+    SELECT a FROM t1 INDEXED BY t1b
+     WHERE +b>1000
+       AND (c=31031 OR d IS NULL)
+     ORDER BY +a
+  }
+} {0 {92 93 97}}
+do_test where9-4.6 {
+  count_steps {
+    SELECT a FROM t1 NOT INDEXED
+     WHERE b>1000
+       AND (c=31031 OR d IS NULL)
+     ORDER BY +a
+  }
+} {92 93 97 scan 98 sort 1}
+do_test where9-4.7 {
+  catchsql {
+    SELECT a FROM t1 INDEXED BY t1c
+     WHERE b>1000
+       AND (c=31031 OR d IS NULL)
+     ORDER BY +a
+  }
+} {0 {92 93 97}}
+do_test where9-4.8 {
+  catchsql {
+    SELECT a FROM t1 INDEXED BY t1d
+     WHERE b>1000
+       AND (c=31031 OR d IS NULL)
+     ORDER BY +a
+  }
+} {0 {92 93 97}}
+
+# The (c=31031 OR d IS NULL) clause is preferred over b>1000 because
+# the former is an equality test which is expected to return fewer rows.
+#
+do_eqp_test where9-5.1 {
+  SELECT a FROM t1 WHERE b>1000 AND (c=31031 OR d IS NULL)
+} {
+  QUERY PLAN
+  `--MULTI-INDEX OR
+     |--INDEX 1
+     |  `--SEARCH t1 USING INDEX t1c (c=?)
+     `--INDEX 2
+        `--SEARCH t1 USING INDEX t1d (d=?)
+}
+
+# In contrast, b=1000 is preferred over any OR-clause.
+#
+do_eqp_test where9-5.2 {
+  SELECT a FROM t1 WHERE b=1000 AND (c=31031 OR d IS NULL)
+} {SEARCH t1 USING INDEX t1b (b=?)}
+
+# Likewise, inequalities in an AND are preferred over inequalities in
+# an OR.
+#
+do_eqp_test where9-5.3 {
+  SELECT a FROM t1 WHERE b>1000 AND (c>=31031 OR d IS NULL)
+} {SEARCH t1 USING INDEX t1b (b>?)}
+
+############################################################################
+# Make sure OR-clauses work correctly on UPDATE and DELETE statements.
+
+do_test where9-6.2.1 {
+  db eval {SELECT count(*) FROM t1 UNION ALL SELECT a FROM t1 WHERE a>=85}
+} {99 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99}
+
+do_test where9-6.2.2 {   ;# Deletes entries 90 91 92 96 97 99
+  count_steps {
+     BEGIN;
+     DELETE FROM t1
+     WHERE b IS NULL
+        OR c IS NULL
+        OR d IS NULL
+  }
+} {scan 0 sort 0}
+
+do_test where9-6.2.3 {
+  db eval {
+    SELECT count(*) FROM t1 UNION ALL
+    SELECT a FROM t1 WHERE a>=85;
+    ROLLBACK;
+  }
+} {93 85 86 87 88 89 93 94 95 98}
+
+do_test where9-6.2.4 {   ;# Deletes entries 90 91 92 96 97 99
+  count_steps {
+     BEGIN;
+     DELETE FROM t1
+     WHERE +b IS NULL
+        OR c IS NULL
+        OR d IS NULL
+  }
+} {scan 98 sort 0}
+
+do_test where9-6.2.5 {
+  db eval {
+     SELECT count(*) FROM t1 UNION ALL
+     SELECT a FROM t1 WHERE a>=85;
+     ROLLBACK;
+  }
+} {93 85 86 87 88 89 93 94 95 98}
+
+do_test where9-6.2.6 {
+  count_steps {
+     BEGIN;
+     UPDATE t1 SET a=a+100
+     WHERE (b IS NULL
+            OR c IS NULL
+            OR d IS NULL)
+       AND a!=92
+       AND a!=97
+  }
+} {scan 0 sort 0}   ;# Add 100 to entries 90 91 96 99
+
+do_test where9-6.2.7 {
+  db eval {
+     SELECT count(*) FROM t1 UNION ALL
+     SELECT a FROM t1 WHERE a>=85;
+     ROLLBACK
+  }
+} {99 85 86 87 88 89 92 93 94 95 97 98 190 191 196 199}
+
+do_test where9-6.2.8 {   ;# Deletes entries 90 91 92 97 99
+  count_steps {
+     BEGIN;
+     DELETE FROM t1
+     WHERE (b IS NULL
+            OR c IS NULL
+            OR d IS NULL)
+       AND a!=96
+  }
+} {scan 0 sort 0}
+
+do_test where9-6.2.9 {
+  db eval {
+     SELECT count(*) FROM t1 UNION ALL SELECT a FROM t1 WHERE a>=85;
+     ROLLBACK;
+  }
+} {94 85 86 87 88 89 93 94 95 96 98}
+
+do_test where9-6.3.1 {
+  count_steps {
+    BEGIN;
+    DELETE FROM t1
+     WHERE (b IS NULL AND c NOT NULL AND d NOT NULL)
+        OR (b NOT NULL AND c IS NULL AND d NOT NULL)
+        OR (b NOT NULL AND c NOT NULL AND d IS NULL)
+  }
+} {scan 0 sort 0}   ;# DELETEs rows 90 91 92 97
+do_test where9-6.3.2 {
+  db eval {
+    SELECT count(*) FROM t1 UNION ALL
+    SELECT a FROM t1 WHERE a BETWEEN 85 AND 100;
+    ROLLBACK;
+  }
+} {95 85 86 87 88 89 93 94 95 96 98 99}
+
+do_test where9-6.3.3 {
+  count_steps {
+    BEGIN;
+    UPDATE t1 SET a=a+100
+     WHERE (b IS NULL AND c NOT NULL AND d NOT NULL)
+        OR (b NOT NULL AND c IS NULL AND d NOT NULL)
+        OR (b NOT NULL AND c NOT NULL AND d IS NULL)
+  }
+} {scan 0 sort 0}   ;# Add 100 to rowids 90 91 92 97
+do_test where9-6.3.4 {
+  db eval {
+    SELECT count(*) FROM t1 UNION ALL
+    SELECT a FROM t1 WHERE a BETWEEN 85 AND 200;
+    ROLLBACK;
+  }
+} {99 85 86 87 88 89 93 94 95 96 98 99 190 191 192 197}
+
+do_test where9-6.3.5 {
+  count_steps {
+    BEGIN;
+    DELETE FROM t1
+     WHERE (+b IS NULL AND c NOT NULL AND d NOT NULL)
+        OR (b NOT NULL AND c IS NULL AND d NOT NULL)
+        OR (b NOT NULL AND c NOT NULL AND d IS NULL)
+  }
+} {scan 98 sort 0}   ;# DELETEs rows 90 91 92 97
+do_test where9-6.3.6 {
+  db eval {
+    SELECT count(*) FROM t1 UNION ALL
+    SELECT a FROM t1 WHERE a BETWEEN 85 AND 100;
+    ROLLBACK;
+  }
+} {95 85 86 87 88 89 93 94 95 96 98 99}
+
+do_test where9-6.3.7 {
+  count_steps {
+    BEGIN;
+    UPDATE t1 SET a=a+100
+     WHERE (b IS NULL AND c NOT NULL AND d NOT NULL)
+        OR (b NOT NULL AND +c IS NULL AND d NOT NULL)
+        OR (b NOT NULL AND c NOT NULL AND d IS NULL)
+  }
+} {scan 98 sort 0}   ;# Add 100 to rowids 90 91 92 97
+do_test where9-6.3.8 {
+  db eval {
+    SELECT count(*) FROM t1 UNION ALL
+    SELECT a FROM t1 WHERE a BETWEEN 85 AND 100;
+    ROLLBACK;
+  }
+} {99 85 86 87 88 89 93 94 95 96 98 99}
+
+
+do_test where9-6.4.1 {
+  count_steps {
+    BEGIN;
+    DELETE FROM t1
+     WHERE (b>=950 AND b<=1010) OR (b IS NULL AND c NOT NULL)
+  }
+} {scan 0 sort 0}  ;# DELETE rows 87 88 89 90 91
+do_test where9-6.4.2 {
+  db eval {
+    SELECT count(*) FROM t1 UNION ALL
+    SELECT a FROM t1 WHERE a BETWEEN 85 AND 100;
+    ROLLBACK;
+  }
+} {94 85 86 92 93 94 95 96 97 98 99}
+do_test where9-6.4.3 {
+  count_steps {
+    BEGIN;
+    UPDATE t1 SET a=a+100
+     WHERE (b>=950 AND b<=1010) OR (b IS NULL AND c NOT NULL)
+  }
+} {scan 0 sort 0}  ;# Add 100 to rowids 87 88 89 90 91
+do_test where9-6.4.4 {
+  db eval {
+    SELECT count(*) FROM t1 UNION ALL
+    SELECT a FROM t1 WHERE a BETWEEN 85 AND 100;
+    ROLLBACK;
+  }
+} {99 85 86 92 93 94 95 96 97 98 99}
+
+
+do_test where9-6.5.1 {
+  count_steps {
+    BEGIN;
+    DELETE FROM t1
+     WHERE a=83
+        OR b=913
+        OR c=28028
+        OR (d>=82 AND d<83)
+        OR (e>2802 AND e<2803) 
+        OR f='fghijklmn'
+        OR g='hgfedcb'
+  }
+} {scan 0 sort 0}   ;#  DELETE rows 5 31 57 82 83 84 85 86 87
+do_test where9-6.5.2 {
+  db eval {
+    SELECT count(*) FROM t1 UNION ALL
+    SELECT a FROM t1 WHERE a IN (5,31,57,82,83,84,85,86,87);
+    ROLLBACK;
+  }
+} {90}
+
+do_test where9-6.5.3 {
+  count_steps {
+    BEGIN;
+    UPDATE t1 SET a=a+100
+     WHERE a=83
+        OR b=913
+        OR c=28028
+        OR (d>=82 AND d<83)
+        OR (e>2802 AND e<2803) 
+        OR f='fghijklmn'
+        OR g='hgfedcb'
+  }
+} {scan 0 sort 0}   ;#  Add 100 to rowids 5 31 57 82 83 84 85 86 87
+do_test where9-6.5.4 {
+  db eval {
+    SELECT count(*) FROM t1 UNION ALL
+    SELECT a FROM t1 WHERE a%100 IN (5,31,57,82,83,84,85,86,87) ORDER BY rowid;
+    ROLLBACK;
+  }
+} {99 105 131 157 182 183 184 185 186 187}
+
+do_test where9-6.6.1 {
+  count_steps {
+    BEGIN;
+    DELETE FROM t1
+     WHERE (b IS NULL AND c NOT NULL AND d NOT NULL)
+        OR (b NOT NULL AND +c IS NULL AND d NOT NULL)
+        OR (b NOT NULL AND c NOT NULL AND d IS NULL)
+  }
+} {scan 98 sort 0}   ;# DELETEs rows 90 91 92 97
+do_test where9-6.6.2 {
+  db eval {
+    SELECT count(*) FROM t1 UNION ALL
+    SELECT a FROM t1 WHERE a BETWEEN 85 AND 100;
+    ROLLBACK;
+  }
+} {95 85 86 87 88 89 93 94 95 96 98 99}
+
+do_test where9-6.6.3 {
+  count_steps {
+    BEGIN;
+    UPDATE t1 SET a=a+100
+     WHERE (b IS NULL AND c NOT NULL AND d NOT NULL)
+        OR (b NOT NULL AND +c IS NULL AND d NOT NULL)
+        OR (b NOT NULL AND c NOT NULL AND d IS NULL)
+  }
+} {scan 98 sort 0}   ;# Add 100 to rowids 90 91 92 97
+do_test where9-6.6.4 {
+  db eval {
+    SELECT count(*) FROM t1 UNION ALL
+    SELECT a FROM t1 WHERE a BETWEEN 85 AND 200;
+    ROLLBACK;
+  }
+} {99 85 86 87 88 89 93 94 95 96 98 99 190 191 192 197}
+
+do_test where9-6.7.1 {
+  count_steps {
+    BEGIN;
+    DELETE FROM t1 NOT INDEXED
+     WHERE (b IS NULL AND c NOT NULL AND d NOT NULL)
+        OR (b NOT NULL AND c IS NULL AND d NOT NULL)
+        OR (b NOT NULL AND c NOT NULL AND d IS NULL)
+  }
+} {scan 98 sort 0}   ;# DELETEs rows 90 91 92 97
+do_test where9-6.7.2 {
+  db eval {
+    SELECT count(*) FROM t1 UNION ALL
+    SELECT a FROM t1 WHERE a BETWEEN 85 AND 100;
+    ROLLBACK;
+  }
+} {95 85 86 87 88 89 93 94 95 96 98 99}
+
+do_test where9-6.7.3 {
+  count_steps {
+    BEGIN;
+    UPDATE t1 NOT INDEXED SET a=a+100
+     WHERE (b IS NULL AND c NOT NULL AND d NOT NULL)
+        OR (b NOT NULL AND c IS NULL AND d NOT NULL)
+        OR (b NOT NULL AND c NOT NULL AND d IS NULL)
+  }
+} {scan 98 sort 0}   ;# Add 100 to rowids 90 91 92 97
+do_test where9-6.7.4 {
+  db eval {
+    SELECT count(*) FROM t1 UNION ALL
+    SELECT a FROM t1 WHERE a BETWEEN 85 AND 200;
+    ROLLBACK;
+  }
+} {99 85 86 87 88 89 93 94 95 96 98 99 190 191 192 197}
+
+do_test where9-6.8.1 {
+  catchsql {
+    DELETE FROM t1 INDEXED BY t1b
+     WHERE (+b IS NULL AND c NOT NULL AND d NOT NULL)
+        OR (b NOT NULL AND c IS NULL AND d NOT NULL)
+        OR (b NOT NULL AND c NOT NULL AND d IS NULL)
+  }
+} {0 {}}
+do_test where9-6.8.2 {
+  catchsql {
+    UPDATE t1 INDEXED BY t1b SET a=a+100
+     WHERE (+b IS NULL AND c NOT NULL AND d NOT NULL)
+        OR (b NOT NULL AND c IS NULL AND d NOT NULL)
+        OR (b NOT NULL AND c NOT NULL AND d IS NULL)
+  }
+} {0 {}}
+
+set solution_possible 0
+ifcapable stat4 {
+  if {[permutation] != "no_optimization"} { set solution_possible 1 }
+}
+if $solution_possible {
+  # When STAT3 is enabled, the "b NOT NULL" terms get translated
+  # into b>NULL, which can be satified by the index t1b.  It is a very
+  # expensive way to do the query, but it works, and so a solution is possible.
+  do_test where9-6.8.3-stat4 {
+    catchsql {
+      UPDATE t1 INDEXED BY t1b SET a=a+100
+       WHERE (b IS NULL AND c NOT NULL AND d NOT NULL)
+          OR (b NOT NULL AND c IS NULL AND d NOT NULL)
+          OR (b NOT NULL AND c NOT NULL AND d IS NULL)
+    }
+  } {0 {}}
+  do_test where9-6.8.4-stat4 {
+    catchsql {
+      DELETE FROM t1 INDEXED BY t1b
+       WHERE (b IS NULL AND c NOT NULL AND d NOT NULL)
+          OR (b NOT NULL AND c IS NULL AND d NOT NULL)
+          OR (b NOT NULL AND c NOT NULL AND d IS NULL)
+    }
+  } {0 {}}
+} else {
+  do_test where9-6.8.3 {
+    catchsql {
+      UPDATE t1 INDEXED BY t1b SET a=a+100
+       WHERE (b IS NULL AND c NOT NULL AND d NOT NULL)
+          OR (b NOT NULL AND c IS NULL AND d NOT NULL)
+          OR (b NOT NULL AND c NOT NULL AND d IS NULL)
+    }
+  } {0 {}}
+  do_test where9-6.8.4 {
+    catchsql {
+      DELETE FROM t1 INDEXED BY t1b
+       WHERE (b IS NULL AND c NOT NULL AND d NOT NULL)
+          OR (b NOT NULL AND c IS NULL AND d NOT NULL)
+          OR (b NOT NULL AND c NOT NULL AND d IS NULL)
+    }
+  } {0 {}}
+}
+############################################################################
+# Test cases where terms inside an OR series are combined with AND terms
+# external to the OR clause.  In other words, cases where
+#
+#              x AND (y OR z)
+#
+# is able to use indices on x,y and x,z, or indices y,x and z,x.
+#
+do_test where9-7.0 {
+  execsql {
+    CREATE TABLE t5(a, b, c, d, e, f, g, x, y);
+    INSERT INTO t5
+     SELECT a, b, c, e, d, f, g,
+            CASE WHEN (a&1)!=0 THEN 'y' ELSE 'n' END,
+            CASE WHEN (a&2)!=0 THEN 'y' ELSE 'n' END
+       FROM t1;
+    CREATE INDEX t5xb ON t5(x, b);
+    CREATE INDEX t5xc ON t5(x, c);
+    CREATE INDEX t5xd ON t5(x, d);
+    CREATE INDEX t5xe ON t5(x, e);
+    CREATE INDEX t5xf ON t5(x, f);
+    CREATE INDEX t5xg ON t5(x, g);
+    CREATE INDEX t5yb ON t5(y, b);
+    CREATE INDEX t5yc ON t5(y, c);
+    CREATE INDEX t5yd ON t5(y, d);
+    CREATE INDEX t5ye ON t5(y, e);
+    CREATE INDEX t5yf ON t5(y, f);
+    CREATE INDEX t5yg ON t5(y, g);
+    CREATE TABLE t6(a, b, c, e, d, f, g, x, y);
+    INSERT INTO t6 SELECT * FROM t5;
+    ANALYZE t5;
+  }
+} {}
+do_test where9-7.1.1 {
+  count_steps {
+    SELECT a FROM t5 WHERE x='y' AND (b=913 OR c=27027) ORDER BY a;
+  }
+} {79 81 83 scan 0 sort 1}
+do_test where9-7.1.2 {
+  execsql {
+    SELECT a FROM t6 WHERE x='y' AND (b=913 OR c=27027) ORDER BY a;
+  }
+} {79 81 83}
+do_test where9-7.1.3 {
+  count_steps {
+    SELECT a FROM t5 WHERE x='n' AND (b=913 OR c=27027) ORDER BY a;
+  }
+} {80 scan 0 sort 1}
+do_test where9-7.1.4 {
+  execsql {
+    SELECT a FROM t6 WHERE x='n' AND (b=913 OR c=27027) ORDER BY a;
+  }
+} {80}
+do_test where9-7.2.1 {
+  count_steps {
+    SELECT a FROM t5 WHERE (x='y' OR y='y') AND b=913 ORDER BY a;
+  }
+} {83 scan 0 sort 1}
+do_test where9-7.2.2 {
+  execsql {
+    SELECT a FROM t6 WHERE (x='y' OR y='y') AND b=913 ORDER BY a;
+  }
+} {83}
+do_test where9-7.3.1 {
+  count_steps {
+    SELECT a FROM t5 WHERE (x='y' OR y='y') AND c=27027 ORDER BY a;
+  }
+} {79 81 scan 0 sort 1}
+do_test where9-7.3.2 {
+  execsql {
+    SELECT a FROM t6 WHERE (x='y' OR y='y') AND c=27027 ORDER BY a;
+  }
+} {79 81}
+
+# Fix for ticket [b7c8682cc17f32903f03a610bd0d35ffd3c1e6e4]
+# "Incorrect result from LEFT JOIN with OR in the WHERE clause"
+#
+do_test where9-8.1 {
+  db eval {
+    CREATE TABLE t81(a INTEGER PRIMARY KEY, b, c, d);
+    CREATE TABLE t82(x INTEGER PRIMARY KEY, y);
+    CREATE TABLE t83(p INTEGER PRIMARY KEY, q);
+    
+    INSERT INTO t81 VALUES(2,3,4,5);
+    INSERT INTO t81 VALUES(3,4,5,6);
+    INSERT INTO t82 VALUES(2,4);
+    INSERT INTO t83 VALUES(5,55);
+    
+    SELECT *
+      FROM t81 LEFT JOIN t82 ON y=b JOIN t83
+     WHERE c==p OR d==p
+     ORDER BY +a;
+  }
+} {2 3 4 5 {} {} 5 55 3 4 5 6 2 4 5 55}
+do_test where9-8.2 {
+  db eval {
+    SELECT *
+      FROM t81 LEFT JOIN (t82) ON y=b JOIN t83
+     WHERE c==p OR d==p
+     ORDER BY +a;
+  }
+} {2 3 4 5 {} {} 5 55 3 4 5 6 2 4 5 55}
+do_test where9-8.3 {
+  db eval {
+    SELECT *
+      FROM (t81) LEFT JOIN (main.t82) ON y=b JOIN t83
+     WHERE c==p OR d==p
+     ORDER BY +a;
+  }
+} {2 3 4 5 {} {} 5 55 3 4 5 6 2 4 5 55}
+
+# Fix for ticket [f2369304e47167e3e644e2f1fe9736063391d7b7]
+# Incorrect results when OR is used in the ON clause of a LEFT JOIN 
+#
+do_test where9-9.1 {
+  db eval {
+    CREATE TABLE t91(x); INSERT INTO t91 VALUES(1);
+    CREATE TABLE t92(y INTEGER PRIMARY KEY,a,b);
+    INSERT INTO t92 VALUES(1,2,3);
+    SELECT 1 FROM t91 LEFT JOIN t92 ON a=2 OR b=3;
+    SELECT 2 FROM t91 LEFT JOIN t92 ON a=2 AND b=3;
+    SELECT 3 FROM t91 LEFT JOIN t92 ON (a=2 OR b=3) AND y IS NULL;
+    SELECT 4 FROM t91 LEFT JOIN t92 ON (a=2 AND b=3) AND y IS NULL;
+    CREATE TEMP TABLE x9 AS SELECT * FROM t91 LEFT JOIN t92 ON a=2 OR b=3;
+    SELECT 5 FROM x9 WHERE y IS NULL;
+    SELECT 6 FROM t91 LEFT JOIN t92 ON a=2 OR b=3 WHERE y IS NULL;
+    SELECT 7 FROM t91 LEFT JOIN t92 ON a=2 AND b=3 WHERE y IS NULL;
+    SELECT 8 FROM t91 LEFT JOIN t92 ON a=22 OR b=33 WHERE y IS NULL;
+    SELECT 9 FROM t91 LEFT JOIN t92 ON a=22 AND b=33 WHERE y IS NULL;
+  }
+} {1 2 3 4 8 9}
+
+# Fix for ticket [bc878246eafe0f52c519e29049b2fe4a99491b27]
+# Incorrect result when OR is used in a join to the right of a LEFT JOIN
+#
+do_test where9-10.1 {
+  db eval {
+    CREATE TABLE t101 (id INTEGER PRIMARY KEY);
+    INSERT INTO t101 VALUES (1);
+    SELECT * FROM t101 AS t0
+         LEFT JOIN t101 AS t1 ON t1.id BETWEEN 10 AND 20
+         JOIN t101 AS t2 ON (t2.id = t0.id OR (t2.id<>555 AND t2.id=t1.id));
+  }
+} {1 {} 1}
+do_test where9-10.2 {
+  db eval {
+    CREATE TABLE t102 (id TEXT UNIQUE NOT NULL);
+    INSERT INTO t102 VALUES ('1');
+    SELECT * FROM t102 AS t0
+         LEFT JOIN t102 AS t1 ON t1.id GLOB 'abc%'
+         JOIN t102 AS t2 ON (t2.id = t0.id OR (t2.id<>555 AND t2.id=t1.id));
+  }
+} {1 {} 1}
+
+# dbsqlfuzz 9df1d53c24c4c96af0dae15ee764897af415ac76
+# The MULTI-INDEX OR processing evaluates the same WHERE-clause sub-expression
+# twice.  But if that sub-expression contains a UNION ALL SELECT statement
+# subject to query flattening, the sub-expression might be transformed in a
+# way that it can only be code-generated once.  An assert() will fail on
+# the second attempt to generate code from the same sub-expression.
+# The solution is to make a copy of sub-expressions used by MULTI-INDEX OR
+#
+reset_db
+do_execsql_test where9-11.1 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b TEXT);
+  CREATE TABLE t2_a(k INTEGER PRIMARY KEY, v TEXT);
+  CREATE TABLE t2_b(k INTEGER PRIMARY KEY, v TEXT);
+  CREATE VIEW t2 AS SELECT * FROM t2_a UNION ALL SELECT * FROM t2_b;
+  SELECT 1 FROM t1 JOIN t1 USING(a)
+   WHERE (a=1)
+      OR (a=2 AND (SELECT 4 FROM t2,(SELECT 5 FROM t1 ORDER BY a) WHERE a));
+} {}
+
+finish_test
diff --git a/test/whereA.test b/test/whereA.test
new file mode 100644
index 0000000000000000000000000000000000000000..dff24d8c836db25843a587b05d563e58537ae8b1
--- /dev/null
+++ b/test/whereA.test
@@ -0,0 +1,189 @@
+# 2009 February 23
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. The
+# focus of this file is testing the reverse_select_order pragma.
+#
+# $Id: whereA.test,v 1.3 2009/06/10 19:33:29 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test whereA-1.1 {
+  db eval {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b UNIQUE, c);
+    INSERT INTO t1 VALUES(1,2,3);
+    INSERT INTO t1 values(2,'hello','world');
+    INSERT INTO t1 VALUES(3,4.53,NULL);
+    SELECT * FROM t1
+  }
+} {1 2 3 2 hello world 3 4.53 {}}
+do_test whereA-1.2 {
+  db eval {
+    PRAGMA reverse_unordered_selects=1;
+    SELECT * FROM t1;
+  }
+} {3 4.53 {} 2 hello world 1 2 3}
+
+do_test whereA-1.3 {
+  db close
+  sqlite3 db test.db
+  db eval {
+    PRAGMA reverse_unordered_selects=1;
+    SELECT * FROM t1;
+  }
+} {3 4.53 {} 2 hello world 1 2 3}
+do_test whereA-1.4 {
+  db close
+  sqlite3 db test.db
+  db eval {
+    PRAGMA reverse_unordered_selects=1;
+    SELECT * FROM t1 ORDER BY rowid;
+  }
+} {1 2 3 2 hello world 3 4.53 {}}
+do_test whereA-1.5 {
+  db eval {
+    VACUUM;
+    SELECT * FROM t1 ORDER BY rowid;
+  }
+} {1 2 3 2 hello world 3 4.53 {}}
+do_test whereA-1.6 {
+  db eval {
+    PRAGMA reverse_unordered_selects;
+  }
+} {1}
+do_test whereA-1.7 {
+  db close
+  sqlite3 db test.db
+  db eval {
+    PRAGMA reverse_unordered_selects=1;
+    VACUUM;
+    SELECT * FROM t1;
+  }
+} {3 4.53 {} 2 hello world 1 2 3}
+do_execsql_test whereA-1.8 {
+  SELECT * FROM t1 WHERE b=2 AND a IS NULL;
+} {}
+do_execsql_test whereA-1.9 {
+  SELECT * FROM t1 WHERE b=2 AND a IS NOT NULL;
+} {1 2 3}
+
+do_test whereA-2.1 {
+  db eval {
+    PRAGMA reverse_unordered_selects=0;
+    SELECT * FROM t1 WHERE a>0;
+  }
+} {1 2 3 2 hello world 3 4.53 {}}
+do_test whereA-2.2 {
+  db eval {
+    PRAGMA reverse_unordered_selects=1;
+    SELECT * FROM t1 WHERE a>0;
+  }
+} {3 4.53 {} 2 hello world 1 2 3}
+
+do_test whereA-2.3 {
+  db eval {
+    PRAGMA reverse_unordered_selects=1;
+    SELECT * FROM t1 WHERE a>0 ORDER BY rowid;
+  }
+} {1 2 3 2 hello world 3 4.53 {}}
+
+do_test whereA-3.1 {
+  db eval {
+    PRAGMA reverse_unordered_selects=0;
+    SELECT * FROM t1 WHERE b>0;
+  }
+} {1 2 3 3 4.53 {} 2 hello world}
+do_test whereA-3.2 {
+  db eval {
+    PRAGMA reverse_unordered_selects=1;
+    SELECT * FROM t1 WHERE b>0;
+  }
+} {2 hello world 3 4.53 {} 1 2 3}
+do_test whereA-3.3 {
+  db eval {
+    PRAGMA reverse_unordered_selects=1;
+    SELECT * FROM t1 WHERE b>0 ORDER BY b;
+  }
+} {1 2 3 3 4.53 {} 2 hello world}
+
+do_test whereA-4.1 {
+  db eval {
+    CREATE TABLE t2(x);
+    INSERT INTO t2 VALUES(1);
+    INSERT INTO t2 VALUES(2);
+    SELECT x FROM t2;
+  }
+} {2 1}
+# Do an SQL statement.  Append the search count to the end of the result.
+#
+proc count sql {
+  set ::sqlite_sort_count 0
+  return [concat [execsql $sql] $::sqlite_sort_count]
+}
+do_test whereA-4.2 {   ;# Ticket #3904
+  db eval {
+    CREATE INDEX t2x ON t2(x);
+  }
+  count {
+    SELECT x FROM t2;
+  }
+} {2 1 0}
+do_test whereA-4.3 {
+  count {
+    SELECT x FROM t2 ORDER BY x;
+  }
+} {1 2 0}
+do_test whereA-4.4 {
+  count {
+    SELECT x FROM t2 ORDER BY x DESC;
+  }
+} {2 1 0}
+do_test whereA-4.5 {
+  db eval {DROP INDEX t2x;}
+  count {
+    SELECT x FROM t2 ORDER BY x;
+  }
+} {1 2 1}
+do_test whereA-4.6 {
+  count {
+    SELECT x FROM t2 ORDER BY x DESC;
+  }
+} {2 1 1}
+
+# Ticket https://sqlite.org/src/tktview/cb91bf4290c211  2017-08-01
+# Assertion fault following PRAGMA reverse_unordered_selects=ON.
+# 
+do_execsql_test whereA-5.1 {
+  PRAGMA reverse_unordered_selects=on;
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a,b);
+  INSERT INTO t1 VALUES(1,2);
+  CREATE INDEX t1b ON t1(b);
+  SELECT a FROM t1 WHERE b=-99 OR b>1;
+} {1}
+
+# 2020-10-02 OSSFuzz find for an issue introduced by a check-in
+# on the previous day.
+#
+reset_db
+do_execsql_test whereA-6.1 {
+  CREATE TABLE t1(a, b);
+  CREATE INDEX t1aa ON t1(a,a);
+  INSERT INTO t1 VALUES(1,2);
+  ANALYZE;
+  UPDATE sqlite_stat1 SET stat='27 3 3' WHERE idx='t1aa';
+  ANALYZE sqlite_schema;
+  PRAGMA reverse_unordered_selects (1) ;
+  SELECT a FROM t1 WHERE  a=1 OR a=2;
+} {1}
+
+
+finish_test
diff --git a/test/whereB.test b/test/whereB.test
new file mode 100644
index 0000000000000000000000000000000000000000..e4438547d778d58285a05f9617ffa892abe102fd
--- /dev/null
+++ b/test/whereB.test
@@ -0,0 +1,543 @@
+# 2009 August 13
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. The
+# focus of this file is testing WHERE clause conditions with
+# subtle affinity issues.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# For this set of tests:
+#
+#  *   t1.y holds an integer value with affinity NONE
+#  *   t2.b holds a text value with affinity TEXT
+#
+# These values are not equal and because neither affinity is NUMERIC
+# no type conversion occurs.
+#
+do_test whereB-1.1 {
+  db eval {
+    CREATE TABLE t1(x,y);    -- affinity of t1.y is NONE
+    INSERT INTO t1 VALUES(1,99);
+
+    CREATE TABLE t2(a, b TEXT);  -- affinity of t2.b is TEXT
+    CREATE INDEX t2b ON t2(b);
+    INSERT INTO t2 VALUES(2,99);
+
+    SELECT x, a, y=b FROM t1, t2 ORDER BY +x, +a;
+  }
+} {1 2 0}
+do_test whereB-1.2 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE y=b;
+  }
+} {}
+do_test whereB-1.3 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE b=y;
+  }
+} {}
+do_test whereB-1.4 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE +y=+b;
+  }
+} {}
+do_test whereB-1.100 {
+  db eval {
+    DROP INDEX t2b;
+    SELECT x, a, y=b FROM t1, t2 WHERE y=b;
+  }
+} {}
+do_test whereB-1.101 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE b=y;
+  }
+} {}
+do_test whereB-1.102 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE +y=+b;
+  }
+} {}
+
+# For this set of tests:
+#
+#  *   t1.y holds a text value with affinity TEXT
+#  *   t2.b holds an integer value with affinity NONE
+#
+# These values are not equal and because neither affinity is NUMERIC
+# no type conversion occurs.
+#
+do_test whereB-2.1 {
+  db eval {
+    DROP TABLE t1;
+    DROP TABLE t2;
+
+    CREATE TABLE t1(x, y TEXT);    -- affinity of t1.y is TEXT
+    INSERT INTO t1 VALUES(1,99);
+
+    CREATE TABLE t2(a, b BLOB);  -- affinity of t2.b is NONE
+    CREATE INDEX t2b ON t2(b);
+    INSERT INTO t2 VALUES(2,99);
+
+    SELECT x, a, y=b FROM t1, t2 ORDER BY +x, +a;
+  }
+} {1 2 0}
+do_test whereB-2.2 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE y=b;
+  }
+} {}
+do_test whereB-2.3 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE b=y;
+  }
+} {}
+do_test whereB-2.4 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE +y=+b;
+  }
+} {}
+do_test whereB-2.100 {
+  db eval {
+    DROP INDEX t2b;
+    SELECT x, a, y=b FROM t1, t2 WHERE y=b;
+  }
+} {}
+do_test whereB-2.101 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE b=y;
+  }
+} {}
+do_test whereB-2.102 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE +y=+b;
+  }
+} {}
+
+# For this set of tests:
+#
+#  *   t1.y holds a text value with affinity NONE
+#  *   t2.b holds an integer value with affinity NONE
+#
+# These values are not equal and because neither affinity is NUMERIC
+# no type conversion occurs.
+#
+do_test whereB-3.1 {
+  db eval {
+    DROP TABLE t1;
+    DROP TABLE t2;
+
+    CREATE TABLE t1(x, y BLOB);    -- affinity of t1.y is NONE
+    INSERT INTO t1 VALUES(1,99);
+
+    CREATE TABLE t2(a, b BLOB);  -- affinity of t2.b is NONE
+    CREATE INDEX t2b ON t2(b);
+    INSERT INTO t2 VALUES(2,'99');
+
+    SELECT x, a, y=b FROM t1, t2;
+  }
+} {1 2 0}
+do_test whereB-3.2 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE y=b;
+  }
+} {}
+do_test whereB-3.3 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE b=y;
+  }
+} {}
+do_test whereB-3.4 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE +y=+b;
+  }
+} {}
+do_test whereB-3.100 {
+  db eval {
+    DROP INDEX t2b;
+    SELECT x, a, y=b FROM t1, t2 WHERE y=b;
+  }
+} {}
+do_test whereB-3.101 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE b=y;
+  }
+} {}
+do_test whereB-3.102 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE +y=+b;
+  }
+} {}
+
+
+# For this set of tests:
+#
+#  *   t1.y holds a text value with affinity NONE
+#  *   t2.b holds an integer value with affinity NUMERIC
+#
+# Because t2.b has a numeric affinity, type conversion should occur
+# and the two fields should be equal.
+#
+do_test whereB-4.1 {
+  db eval {
+    DROP TABLE t1;
+    DROP TABLE t2;
+
+    CREATE TABLE t1(x, y BLOB);    -- affinity of t1.y is NONE
+    INSERT INTO t1 VALUES(1,'99');
+
+    CREATE TABLE t2(a, b NUMERIC);  -- affinity of t2.b is NUMERIC
+    CREATE INDEX t2b ON t2(b);
+    INSERT INTO t2 VALUES(2,99);
+
+    SELECT x, a, y=b FROM t1, t2;
+  }
+} {1 2 1}
+do_test whereB-4.2 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE y=b;
+  }
+} {1 2 1}
+do_test whereB-4.3 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE b=y;
+  }
+} {1 2 1}
+do_test whereB-4.4 {
+  # In this case the unary "+" operator removes the column affinity so
+  # the columns compare false
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE +y=+b;
+  }
+} {}
+do_test whereB-4.100 {
+  db eval {
+    DROP INDEX t2b;
+    SELECT x, a, y=b FROM t1, t2 WHERE y=b;
+  }
+} {1 2 1}
+do_test whereB-4.101 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE b=y;
+  }
+} {1 2 1}
+do_test whereB-4.102 {
+  # In this case the unary "+" operator removes the column affinity so
+  # the columns compare false
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE +y=+b;
+  }
+} {}
+
+
+
+# For this set of tests:
+#
+#  *   t1.y holds a text value with affinity NONE
+#  *   t2.b holds an integer value with affinity INTEGER
+#
+# Because t2.b has a numeric affinity, type conversion should occur
+# and the two fields should be equal.
+#
+do_test whereB-5.1 {
+  db eval {
+    DROP TABLE t1;
+    DROP TABLE t2;
+
+    CREATE TABLE t1(x, y BLOB);    -- affinity of t1.y is NONE
+    INSERT INTO t1 VALUES(1,'99');
+
+    CREATE TABLE t2(a, b INT);  -- affinity of t2.b is INTEGER
+    CREATE INDEX t2b ON t2(b);
+    INSERT INTO t2 VALUES(2,99);
+
+    SELECT x, a, y=b FROM t1, t2;
+  }
+} {1 2 1}
+do_test whereB-5.2 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE y=b;
+  }
+} {1 2 1}
+do_test whereB-5.3 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE b=y;
+  }
+} {1 2 1}
+do_test whereB-5.4 {
+  # In this case the unary "+" operator removes the column affinity so
+  # the columns compare false
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE +y=+b;
+  }
+} {}
+do_test whereB-5.100 {
+  db eval {
+    DROP INDEX t2b;
+    SELECT x, a, y=b FROM t1, t2 WHERE y=b;
+  }
+} {1 2 1}
+do_test whereB-5.101 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE b=y;
+  }
+} {1 2 1}
+do_test whereB-5.102 {
+  # In this case the unary "+" operator removes the column affinity so
+  # the columns compare false
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE +y=+b;
+  }
+} {}
+
+
+# For this set of tests:
+#
+#  *   t1.y holds a text value with affinity NONE
+#  *   t2.b holds an integer value with affinity REAL
+#
+# Because t2.b has a numeric affinity, type conversion should occur
+# and the two fields should be equal.
+#
+do_test whereB-6.1 {
+  db eval {
+    DROP TABLE t1;
+    DROP TABLE t2;
+
+    CREATE TABLE t1(x, y BLOB);    -- affinity of t1.y is NONE
+    INSERT INTO t1 VALUES(1,'99');
+
+    CREATE TABLE t2(a, b REAL);  -- affinity of t2.b is REAL
+    CREATE INDEX t2b ON t2(b);
+    INSERT INTO t2 VALUES(2,99.0);
+
+    SELECT x, a, y=b FROM t1, t2;
+  }
+} {1 2 1}
+do_test whereB-6.2 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE y=b;
+  }
+} {1 2 1}
+do_test whereB-6.3 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE b=y;
+  }
+} {1 2 1}
+do_test whereB-6.4 {
+  # In this case the unary "+" operator removes the column affinity so
+  # the columns compare false
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE +y=+b;
+  }
+} {}
+do_test whereB-6.100 {
+  db eval {
+    DROP INDEX t2b;
+    SELECT x, a, y=b FROM t1, t2 WHERE y=b;
+  }
+} {1 2 1}
+do_test whereB-6.101 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE b=y;
+  }
+} {1 2 1}
+do_test whereB-6.102 {
+  # In this case the unary "+" operator removes the column affinity so
+  # the columns compare false
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE +y=+b;
+  }
+} {}
+
+
+# For this set of tests:
+#
+#  *   t1.y holds an integer value with affinity NUMERIC
+#  *   t2.b holds a text value with affinity NONE
+#
+# Because t1.y has a numeric affinity, type conversion should occur
+# and the two fields should be equal.
+#
+do_test whereB-7.1 {
+  db eval {
+    DROP TABLE t1;
+    DROP TABLE t2;
+
+    CREATE TABLE t1(x, y NUMERIC);  -- affinity of t1.y is NUMERIC
+    INSERT INTO t1 VALUES(1,99);
+
+    CREATE TABLE t2(a, b BLOB);  -- affinity of t2.b is NONE
+    CREATE INDEX t2b ON t2(b);
+    INSERT INTO t2 VALUES(2,'99');
+
+    SELECT x, a, y=b FROM t1, t2;
+  }
+} {1 2 1}
+do_test whereB-7.2 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE y=b;
+  }
+} {1 2 1}
+do_test whereB-7.3 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE b=y;
+  }
+} {1 2 1}
+do_test whereB-7.4 {
+  # In this case the unary "+" operator removes the column affinity so
+  # the columns compare false
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE +y=+b;
+  }
+} {}
+do_test whereB-7.100 {
+  db eval {
+    DROP INDEX t2b;
+    SELECT x, a, y=b FROM t1, t2 WHERE y=b;
+  }
+} {1 2 1}
+do_test whereB-7.101 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE b=y;
+  }
+} {1 2 1}
+do_test whereB-7.102 {
+  # In this case the unary "+" operator removes the column affinity so
+  # the columns compare false
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE +y=+b;
+  }
+} {}
+
+# For this set of tests:
+#
+#  *   t1.y holds an integer value with affinity INTEGER
+#  *   t2.b holds a text value with affinity NONE
+#
+# Because t1.y has a numeric affinity, type conversion should occur
+# and the two fields should be equal.
+#
+do_test whereB-8.1 {
+  db eval {
+    DROP TABLE t1;
+    DROP TABLE t2;
+
+    CREATE TABLE t1(x, y INT);  -- affinity of t1.y is INTEGER
+    INSERT INTO t1 VALUES(1,99);
+
+    CREATE TABLE t2(a, b BLOB);  -- affinity of t2.b is NONE
+    CREATE INDEX t2b ON t2(b);
+    INSERT INTO t2 VALUES(2,'99');
+
+    SELECT x, a, y=b FROM t1, t2;
+  }
+} {1 2 1}
+do_test whereB-8.2 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE y=b;
+  }
+} {1 2 1}
+do_test whereB-8.3 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE b=y;
+  }
+} {1 2 1}
+do_test whereB-8.4 {
+  # In this case the unary "+" operator removes the column affinity so
+  # the columns compare false
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE +y=+b;
+  }
+} {}
+do_test whereB-8.100 {
+  db eval {
+    DROP INDEX t2b;
+    SELECT x, a, y=b FROM t1, t2 WHERE y=b;
+  }
+} {1 2 1}
+do_test whereB-8.101 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE b=y;
+  }
+} {1 2 1}
+do_test whereB-8.102 {
+  # In this case the unary "+" operator removes the column affinity so
+  # the columns compare false
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE +y=+b;
+  }
+} {}
+
+# For this set of tests:
+#
+#  *   t1.y holds an integer value with affinity REAL
+#  *   t2.b holds a text value with affinity NONE
+#
+# Because t1.y has a numeric affinity, type conversion should occur
+# and the two fields should be equal.
+#
+do_test whereB-9.1 {
+  db eval {
+    DROP TABLE t1;
+    DROP TABLE t2;
+
+    CREATE TABLE t1(x, y REAL);  -- affinity of t1.y is REAL
+    INSERT INTO t1 VALUES(1,99.0);
+
+    CREATE TABLE t2(a, b BLOB);  -- affinity of t2.b is NONE
+    CREATE INDEX t2b ON t2(b);
+    INSERT INTO t2 VALUES(2,'99');
+
+    SELECT x, a, y=b FROM t1, t2;
+  }
+} {1 2 1}
+do_test whereB-9.2 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE y=b;
+  }
+} {1 2 1}
+do_test whereB-9.3 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE b=y;
+  }
+} {1 2 1}
+do_test whereB-9.4 {
+  # In this case the unary "+" operator removes the column affinity so
+  # the columns compare false
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE +y=+b;
+  }
+} {}
+do_test whereB-9.100 {
+  db eval {
+    DROP INDEX t2b;
+    SELECT x, a, y=b FROM t1, t2 WHERE y=b;
+  }
+} {1 2 1}
+do_test whereB-9.101 {
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE b=y;
+  }
+} {1 2 1}
+do_test whereB-9.102 {
+  # In this case the unary "+" operator removes the column affinity so
+  # the columns compare false
+  db eval {
+    SELECT x, a, y=b FROM t1, t2 WHERE +y=+b;
+  }
+} {}
+
+
+
+
+finish_test
diff --git a/test/whereC.test b/test/whereC.test
new file mode 100644
index 0000000000000000000000000000000000000000..f17206967505690300d3939cb2f5fb66af41d886
--- /dev/null
+++ b/test/whereC.test
@@ -0,0 +1,70 @@
+# 2011 November 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix whereC
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(i INTEGER PRIMARY KEY, a, b INTEGER);
+
+  INSERT INTO t1 VALUES(1, 1, 1);
+  INSERT INTO t1 VALUES(2, 1, 1);
+  INSERT INTO t1 VALUES(3, 1, 2);
+  INSERT INTO t1 VALUES(4, 1, 2);
+  INSERT INTO t1 VALUES(5, 1, 2);
+  INSERT INTO t1 VALUES(6, 1, 3);
+  INSERT INTO t1 VALUES(7, 1, 3);
+
+  INSERT INTO t1 VALUES(8, 2, 1);
+  INSERT INTO t1 VALUES(9, 2, 1);
+  INSERT INTO t1 VALUES(10, 2, 2);
+  INSERT INTO t1 VALUES(11, 2, 2);
+  INSERT INTO t1 VALUES(12, 2, 2);
+  INSERT INTO t1 VALUES(13, 2, 3);
+  INSERT INTO t1 VALUES(14, 2, 3);
+
+  INSERT INTO t1 VALUES(15, 2, 1);
+  INSERT INTO t1 VALUES(16, 2, 1);
+  INSERT INTO t1 VALUES(17, 2, 2);
+  INSERT INTO t1 VALUES(18, 2, 2);
+  INSERT INTO t1 VALUES(19, 2, 2);
+  INSERT INTO t1 VALUES(20, 2, 3);
+  INSERT INTO t1 VALUES(21, 2, 3);
+
+  CREATE INDEX i1 ON t1(a, b);
+}
+
+foreach {tn sql res} {
+  1   "SELECT i FROM t1 WHERE a=1 AND b=2 AND i>3"         {4 5}
+  2   "SELECT i FROM t1 WHERE rowid='12'"                  {12}
+  3   "SELECT i FROM t1 WHERE a=1 AND b='2'"               {3 4 5}
+  4   "SELECT i FROM t1 WHERE a=1 AND b='2' AND i>'3'"     {4 5}
+  5   "SELECT i FROM t1 WHERE a=1 AND b='2' AND i<5"       {3 4}
+  6   "SELECT i FROM t1 WHERE a=2 AND b=2 AND i<12"        {10 11}
+  7   "SELECT i FROM t1 WHERE a IN(1, 2) AND b=2 AND i<11" {3 4 5 10}
+  8   "SELECT i FROM t1 WHERE a=2 AND b=2 AND i BETWEEN 10 AND 12" {10 11 12}
+  9   "SELECT i FROM t1 WHERE a=2 AND b=2 AND i BETWEEN 11 AND 12" {11 12}
+ 10   "SELECT i FROM t1 WHERE a=2 AND b=2 AND i BETWEEN 10 AND 11" {10 11}
+ 11   "SELECT i FROM t1 WHERE a=2 AND b=2 AND i BETWEEN 12 AND 10" {}
+ 12   "SELECT i FROM t1 WHERE a=2 AND b=2 AND i<NULL"      {}
+ 13   "SELECT i FROM t1 WHERE a=2 AND b=2 AND i>=NULL"     {}
+ 14   "SELECT i FROM t1 WHERE a=1 AND b='2' AND i<4.5"     {3 4}
+ 15   "SELECT i FROM t1 WHERE rowid IS '12'"               {12}
+} {
+  do_execsql_test 1.$tn.1 $sql $res
+  do_execsql_test 1.$tn.2 "$sql ORDER BY i ASC"  [lsort -integer -inc  $res]
+  do_execsql_test 1.$tn.3 "$sql ORDER BY i DESC" [lsort -integer -dec  $res]
+}
+
+
+finish_test
diff --git a/test/whereD.test b/test/whereD.test
new file mode 100644
index 0000000000000000000000000000000000000000..e727f47e2083839c9dd54deeeeae4d14c018e9db
--- /dev/null
+++ b/test/whereD.test
@@ -0,0 +1,433 @@
+# 2012 August 24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing that an index may be used as a covering
+# index when there are OR expressions in the WHERE clause. 
+#
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix whereD
+
+do_execsql_test 1.1 {
+  CREATE TABLE t(i,j,k,m,n);
+  CREATE INDEX ijk ON t(i,j,k);
+  CREATE INDEX jmn ON t(j,m,n);
+
+  INSERT INTO t VALUES(3, 3, 'three', 3, 'tres');
+  INSERT INTO t VALUES(2, 2, 'two', 2, 'dos');
+  INSERT INTO t VALUES(1, 1, 'one', 1, 'uno');
+  INSERT INTO t VALUES(4, 4, 'four', 4, 'cuatro');
+}
+
+do_execsql_test 1.2 {
+  SELECT k FROM t WHERE (i=1 AND j=1) OR (i=2 AND j=2);
+} {one two}
+do_execsql_test 1.3 {
+  SELECT k FROM t WHERE (i=1 AND j=1) OR (+i=2 AND j=2);
+} {one two}
+do_execsql_test 1.4 {
+  SELECT n FROM t WHERE (i=1 AND j=1) OR (i=2 AND j=2);
+} {uno dos}
+do_execsql_test 1.5 {
+  SELECT k, n FROM t WHERE (i=1 AND j=1) OR (i=2 AND j=2);
+} {one uno two dos}
+do_execsql_test 1.6 {
+  SELECT k FROM t WHERE (i=1 AND j=1) OR (i=2 AND j=2) OR (i=3 AND j=3);
+} {one two three}
+do_execsql_test 1.7 {
+  SELECT n FROM t WHERE (i=1 AND j=1) OR (i=2 AND j=2) OR (i=3 AND j=3);
+} {uno dos tres}
+do_execsql_test 1.8 {
+  SELECT k FROM t WHERE (i=1 AND j=1) OR (j=2 AND m=2);
+} {one two}
+do_execsql_test 1.9 {
+  SELECT k FROM t WHERE (i=1 AND j=1) OR (i=2 AND j=2) OR (j=3 AND m=3);
+} {one two three}
+do_execsql_test 1.10 {
+  SELECT n FROM t WHERE (i=1 AND j=1) OR (i=2 AND j=2) OR (j=3 AND m=3);
+} {uno dos tres}
+do_execsql_test 1.11 {
+  SELECT k FROM t WHERE (i=1 AND j=1) OR (j=2 AND m=2) OR (i=3 AND j=3);
+} {one two three}
+do_execsql_test 1.12 {
+  SELECT n FROM t WHERE (i=1 AND j=1) OR (j=2 AND m=2) OR (i=3 AND j=3);
+} {uno dos tres}
+do_execsql_test 1.13 {
+  SELECT k FROM t WHERE (j=1 AND m=1) OR (i=2 AND j=2) OR (i=3 AND j=3);
+} {one two three}
+do_execsql_test 1.14 {
+  SELECT k FROM t WHERE (i=1 AND j=1) OR (j=2 AND i=2) OR (i=3 AND j=3);
+} {one two three}
+do_execsql_test 1.15 {
+  SELECT k FROM t WHERE (i=1 AND j=2) OR (i=2 AND j=1) OR (i=3 AND j=4);
+} {}
+do_execsql_test 1.16 {
+  SELECT k FROM t WHERE (i=1 AND (j=1 or j=2)) OR (i=3 AND j=3);
+} {one three}
+
+do_execsql_test 2.0 {
+  CREATE TABLE t1(a,b,c,d);
+  CREATE INDEX t1b ON t1(b);
+  CREATE INDEX t1c ON t1(c);
+  CREATE INDEX t1d ON t1(d);
+  CREATE TABLE t2(x,y);
+  CREATE INDEX t2y ON t2(y);
+  
+  INSERT INTO t1 VALUES(1,2,3,4);
+  INSERT INTO t1 VALUES(5,6,7,8);
+  INSERT INTO t2 VALUES(1,2);
+  INSERT INTO t2 VALUES(2,7);
+  INSERT INTO t2 VALUES(3,4);
+} {}
+do_execsql_test 2.1 {
+  SELECT a, x FROM t1 JOIN t2 ON +y=d OR x=7 ORDER BY a, x;
+} {1 3}
+do_execsql_test 2.2 {
+  SELECT a, x FROM t1 JOIN t2 ON y=d OR x=7 ORDER BY a, x;
+} {1 3}
+
+
+# Similar to [do_execsql_test], except that two elements are appended
+# to the result - the string "search" and the number of times test variable
+# sqlite3_search_count is incremented by running the supplied SQL. e.g.
+# 
+#   do_searchcount_test 1.0 { SELECT * FROM t1 } {x y search 2}
+#
+proc do_searchcount_test {tn sql res} {
+  uplevel [subst -nocommands {
+    do_test $tn {
+      set ::sqlite_search_count 0
+      concat [db eval {$sql}] search [set ::sqlite_search_count]
+    } [list $res]
+  }] 
+}
+
+do_execsql_test 3.0 {
+  CREATE TABLE t3(a, b, c);
+  CREATE UNIQUE INDEX i3 ON t3(a, b);
+  INSERT INTO t3 VALUES(1, 'one', 'i');
+  INSERT INTO t3 VALUES(3, 'three', 'iii');
+  INSERT INTO t3 VALUES(6, 'six', 'vi');
+  INSERT INTO t3 VALUES(2, 'two', 'ii');
+  INSERT INTO t3 VALUES(4, 'four', 'iv');
+  INSERT INTO t3 VALUES(5, 'five', 'v');
+
+  CREATE TABLE t4(x PRIMARY KEY, y);
+  INSERT INTO t4 VALUES('a', 'one');
+  INSERT INTO t4 VALUES('b', 'two');
+}
+
+do_searchcount_test 3.1 {
+  SELECT a, b FROM t3 WHERE (a=1 AND b='one') OR (a=2 AND b='two')
+} {1 one 2 two search 4}
+
+do_searchcount_test 3.2 {
+  SELECT a, c FROM t3 WHERE (a=1 AND b='one') OR (a=2 AND b='two')
+} {1 i 2 ii search 6}
+
+do_searchcount_test 3.4.1 {
+  SELECT y FROM t4 WHERE x='a'
+} {one search 2}
+do_searchcount_test 3.4.2 {
+  SELECT a, b FROM t3 WHERE 
+        (a=1 AND b=(SELECT y FROM t4 WHERE x='a')) 
+     OR (a=2 AND b='two')
+} {1 one 2 two search 6}
+do_searchcount_test 3.4.3 {
+  SELECT a, b FROM t3 WHERE 
+        (a=2 AND b='two')
+     OR (a=1 AND b=(SELECT y FROM t4 WHERE x='a')) 
+} {2 two 1 one search 6}
+do_searchcount_test 3.4.4 {
+  SELECT a, b FROM t3 WHERE 
+        (a=2 AND b=(SELECT y FROM t4 WHERE x='b')) 
+     OR (a=1 AND b=(SELECT y FROM t4 WHERE x='a')) 
+} {2 two 1 one search 8}
+
+do_searchcount_test 3.5.1 {
+  SELECT a, b FROM t3 WHERE (a=1 AND b='one') OR rowid=4
+} {1 one 2 two search 2}
+do_searchcount_test 3.5.2 {
+  SELECT a, c FROM t3 WHERE (a=1 AND b='one') OR rowid=4
+} {1 i 2 ii search 3}
+
+# Ticket [d02e1406a58ea02d] (2012-10-04)
+# LEFT JOIN with an OR in the ON clause causes segfault 
+#
+do_test 4.1 {
+  db eval {
+    CREATE TABLE t41(a,b,c);
+    INSERT INTO t41 VALUES(1,2,3), (4,5,6);
+    CREATE TABLE t42(d,e,f);
+    INSERT INTO t42 VALUES(3,6,9), (4,8,12);
+    SELECT * FROM t41 AS x LEFT JOIN t42 AS y ON (y.d=x.c) OR (y.e=x.b);
+  }
+} {1 2 3 3 6 9 4 5 6 {} {} {}}
+do_test 4.2 {
+  db eval {
+    CREATE INDEX t42d ON t42(d);
+    CREATE INDEX t42e ON t42(e);
+    SELECT * FROM t41 AS x LEFT JOIN t42 AS y ON (y.d=x.c) OR (y.e=x.b);
+  }
+} {1 2 3 3 6 9 4 5 6 {} {} {}}
+do_test 4.3 {
+  db eval {
+    SELECT * FROM t41 AS x LEFT JOIN t42 AS y ON (y.d=x.c) OR (y.d=x.b);
+  }
+} {1 2 3 3 6 9 4 5 6 {} {} {}}
+
+# Ticket [bc1aea7b725f276177]
+# Incorrect result on LEFT JOIN with OR constraints and an ORDER BY clause.
+#
+do_execsql_test 4.4 {
+  CREATE TABLE t44(a INTEGER, b INTEGER);
+  INSERT INTO t44 VALUES(1,2);
+  INSERT INTO t44 VALUES(3,4);
+  SELECT *
+    FROM t44 AS x
+       LEFT JOIN (SELECT a AS c, b AS d FROM t44) AS y ON a=c
+   WHERE d=4 OR d IS NULL;
+} {3 4 3 4}
+do_execsql_test 4.5 {
+  SELECT *
+    FROM t44 AS x
+       LEFT JOIN (SELECT a AS c, b AS d FROM t44) AS y ON a=c
+   WHERE d=4 OR d IS NULL
+   ORDER BY a;
+} {3 4 3 4}
+do_execsql_test 4.6 {
+  CREATE TABLE t46(c INTEGER, d INTEGER);
+  INSERT INTO t46 SELECT a, b FROM t44;
+  SELECT * FROM t44 LEFT JOIN t46 ON a=c
+   WHERE d=4 OR d IS NULL;
+} {3 4 3 4}
+do_execsql_test 4.7 {
+  SELECT * FROM t44 LEFT JOIN t46 ON a=c
+   WHERE d=4 OR d IS NULL
+   ORDER BY a;
+} {3 4 3 4}
+
+# Verify fix of a bug reported on the mailing list by Peter Reid
+#
+do_execsql_test 5.1 {
+  DROP TABLE IF EXISTS t;
+  CREATE TABLE t(c0,c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16,c17);
+  CREATE INDEX tc0 ON t(c0);
+  CREATE INDEX tc1 ON t(c1);
+  CREATE INDEX tc2 ON t(c2);
+  CREATE INDEX tc3 ON t(c3);
+  CREATE INDEX tc4 ON t(c4);
+  CREATE INDEX tc5 ON t(c5);
+  CREATE INDEX tc6 ON t(c6);
+  CREATE INDEX tc7 ON t(c7);
+  CREATE INDEX tc8 ON t(c8);
+  CREATE INDEX tc9 ON t(c9);
+  CREATE INDEX tc10 ON t(c10);
+  CREATE INDEX tc11 ON t(c11);
+  CREATE INDEX tc12 ON t(c12);
+  CREATE INDEX tc13 ON t(c13);
+  CREATE INDEX tc14 ON t(c14);
+  CREATE INDEX tc15 ON t(c15);
+  CREATE INDEX tc16 ON t(c16);
+  CREATE INDEX tc17 ON t(c17);
+  
+  INSERT INTO t(c0, c16) VALUES (1,1);
+  
+  SELECT * FROM t WHERE
+    c0=1 or  c1=1 or  c2=1 or  c3=1 or
+    c4=1 or  c5=1 or  c6=1 or  c7=1 or
+    c8=1 or  c9=1 or c10=1 or c11=1 or
+    c12=1 or c13=1 or c14=1 or c15=1 or
+    c16=1 or c17=1;
+} {1 {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} 1 {}}
+do_execsql_test 5.2 {
+  DELETE FROM t;
+  INSERT INTO t(c0,c17) VALUES(1,1);
+  SELECT * FROM t WHERE
+    c0=1 or  c1=1 or  c2=1 or  c3=1 or
+    c4=1 or  c5=1 or  c6=1 or  c7=1 or
+    c8=1 or  c9=1 or c10=1 or c11=1 or
+    c12=1 or c13=1 or c14=1 or c15=1 or
+    c16=1 or c17=1;
+} {1 {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} 1}
+do_execsql_test 5.3 {
+  DELETE FROM t;
+  INSERT INTO t(c0,c15) VALUES(1,1);
+  SELECT * FROM t WHERE
+    c0=1 or  c1=1 or  c2=1 or  c3=1 or
+    c4=1 or  c5=1 or  c6=1 or  c7=1 or
+    c8=1 or  c9=1 or c10=1 or c11=1 or
+    c12=1 or c13=1 or c14=1 or c15=1 or
+    c16=1 or c17=1;
+} {1 {} {} {} {} {} {} {} {} {} {} {} {} {} {} 1 {} {}}
+
+#-------------------------------------------------------------------------
+do_execsql_test 6.1 {
+  CREATE TABLE x1(a, b, c, d, e);
+  CREATE INDEX x1a  ON x1(a);
+  CREATE INDEX x1bc ON x1(b, c);
+  CREATE INDEX x1cd ON x1(c, d);
+
+  INSERT INTO x1 VALUES(1, 2, 3, 4, 'A');
+  INSERT INTO x1 VALUES(5, 6, 7, 8, 'B');
+  INSERT INTO x1 VALUES(9, 10, 11, 12, 'C');
+  INSERT INTO x1 VALUES(13, 14, 15, 16, 'D');
+}
+
+do_searchcount_test 6.2.1 {
+  SELECT e FROM x1 WHERE b=2 OR c=7;
+} {A B search 6}
+do_searchcount_test 6.2.2 {
+  SELECT c FROM x1 WHERE b=2 OR c=7;
+} {3 7 search 4}
+
+do_searchcount_test 6.3.1 {
+  SELECT e FROM x1 WHERE a=1 OR b=10;
+} {A C search 6}
+do_searchcount_test 6.3.2 {
+  SELECT c FROM x1 WHERE a=1 OR b=10;
+} {3 11 search 5}
+do_searchcount_test 6.3.3 {
+  SELECT rowid FROM x1 WHERE a=1 OR b=10;
+} {1 3 search 4}
+
+do_searchcount_test 6.4.1 {
+  SELECT a FROM x1 WHERE b BETWEEN 1 AND 4 OR c BETWEEN 8 AND 12
+} {1 9 search 6}
+do_searchcount_test 6.4.2 {
+  SELECT b, c FROM x1 WHERE b BETWEEN 1 AND 4 OR c BETWEEN 8 AND 12
+} {2 3 10 11 search 5}
+do_searchcount_test 6.4.3 {
+  SELECT rowid, c FROM x1 WHERE b BETWEEN 1 AND 4 OR c BETWEEN 8 AND 12
+} {1 3 3 11 search 4}
+
+do_searchcount_test 6.5.1 {
+  SELECT a FROM x1 WHERE rowid = 2 OR c=11
+} {5 9 search 3}
+do_searchcount_test 6.5.2 {
+  SELECT d FROM x1 WHERE rowid = 2 OR c=11
+} {8 12 search 2}
+do_searchcount_test 6.5.3 {
+  SELECT d FROM x1 WHERE c=11 OR rowid = 2
+} {12 8 search 2}
+do_searchcount_test 6.5.4 {
+  SELECT a FROM x1 WHERE c=11 OR rowid = 2 
+} {9 5 search 3}
+
+do_searchcount_test 6.6.1 {
+  SELECT rowid FROM x1 WHERE a=1 OR b=6 OR c=11
+} {1 2 3 search 6}
+do_searchcount_test 6.6.2 {
+  SELECT c FROM x1 WHERE a=1 OR b=6 OR c=11
+} {3 7 11 search 7}
+do_searchcount_test 6.6.3 {
+  SELECT c FROM x1 WHERE c=11 OR a=1 OR b=6 
+} {11 3 7 search 7}
+do_searchcount_test 6.6.4 {
+  SELECT c FROM x1 WHERE b=6 OR c=11 OR a=1
+} {7 11 3 search 7}
+
+# 2020-02-22 ticket aa4378693018aa99
+# In the OP_Column opcode, if a cursor is marked with OP_NullRow
+# (because it is the right table of a LEFT JOIN that does not match)
+# then do not substitute index cursors, as the index cursors do not
+# have the VdbeCursor.nullRow flag set.
+#
+do_execsql_test 6.7 {
+  DROP TABLE IF EXISTS t1;
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t1(a UNIQUE, b UNIQUE);
+  INSERT INTO t1(a,b) VALUES(null,2);
+  CREATE VIEW t2 AS SELECT * FROM t1 WHERE b<10 OR a<7 ORDER BY b;
+  SELECT t1.* FROM t1 LEFT JOIN t2 ON abs(t1.a)=abs(t2.b);
+} {{} 2}
+
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test 7.0 {
+  CREATE TABLE y1(a, b);
+  CREATE TABLE y2(x, y);
+  CREATE INDEX y2xy ON y2(x, y);
+  INSERT INTO y1 VALUES(1, 1);
+  INSERT INTO y2 VALUES(3, 3);
+}
+
+do_execsql_test 7.1 {
+  SELECT * FROM y1 LEFT JOIN y2 ON ((x=1 AND y=b) OR (x=2 AND y=b))
+} {1 1 {} {}}
+
+do_execsql_test 7.3 {
+  CREATE TABLE foo (Id INTEGER PRIMARY KEY, fa INTEGER, fb INTEGER); 
+  CREATE TABLE bar (Id INTEGER PRIMARY KEY, ba INTEGER, bb INTEGER);
+
+  INSERT INTO foo VALUES(1, 1, 1);
+  INSERT INTO foo VALUES(2, 1, 2);
+  INSERT INTO foo VALUES(3, 1, 3);
+  INSERT INTO foo VALUES(4, 1, 4);
+  INSERT INTO foo VALUES(5, 1, 5);
+  INSERT INTO foo VALUES(6, 1, 6);
+  INSERT INTO foo VALUES(7, 1, 7);
+  INSERT INTO foo VALUES(8, 1, 8);
+  INSERT INTO foo VALUES(9, 1, 9);
+
+  INSERT INTO bar VALUES(NULL, 1, 1);
+  INSERT INTO bar VALUES(NULL, 2, 2);
+  INSERT INTO bar VALUES(NULL, 3, 3);
+  INSERT INTO bar VALUES(NULL, 1, 4);
+  INSERT INTO bar VALUES(NULL, 2, 5);
+  INSERT INTO bar VALUES(NULL, 3, 6);
+  INSERT INTO bar VALUES(NULL, 1, 7);
+  INSERT INTO bar VALUES(NULL, 2, 8);
+  INSERT INTO bar VALUES(NULL, 3, 9);
+}
+
+do_execsql_test 7.4 {
+  SELECT 
+    bar.Id, bar.ba, bar.bb, foo.fb
+    FROM foo LEFT JOIN bar
+           ON (bar.ba = 1 AND bar.bb = foo.fb)
+           OR (bar.ba = 5 AND bar.bb = foo.fb);
+} {
+  1 1 1 1 
+  {} {} {} 2 
+  {} {} {} 3 
+  4 1 4 4 
+  {} {} {} 5 
+  {} {} {} 6 
+  7 1 7 7 
+  {} {} {} 8 
+  {} {} {} 9
+}
+
+do_execsql_test 7.5 {
+  CREATE INDEX idx_bar ON bar(ba, bb);
+  SELECT 
+    bar.Id, bar.ba, bar.bb, foo.fb
+    FROM foo LEFT JOIN bar
+           ON (bar.ba = 1 AND bar.bb = foo.fb)
+           OR (bar.ba = 5 AND bar.bb = foo.fb);
+} {
+  1 1 1 1 
+  {} {} {} 2 
+  {} {} {} 3 
+  4 1 4 4 
+  {} {} {} 5 
+  {} {} {} 6 
+  7 1 7 7 
+  {} {} {} 8 
+  {} {} {} 9
+}
+
+
+finish_test
diff --git a/test/whereE.test b/test/whereE.test
new file mode 100644
index 0000000000000000000000000000000000000000..cd9f81d53193c28939334f079822dea5e0d84389
--- /dev/null
+++ b/test/whereE.test
@@ -0,0 +1,68 @@
+# 2012 November 9
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the query planner to make sure it
+# is making good planning decisions.
+#
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix whereE
+
+# If SQLITE_OMIT_ALTERTABLE is defined, omit this file.
+ifcapable !altertable {
+  finish_test
+  return
+}
+
+do_execsql_test 1.1 {
+  CREATE TABLE t1(a,b);
+  INSERT INTO t1 VALUES(1,10), (2,20), (3,30), (2,22), (3, 33);
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  INSERT INTO t1 SELECT * FROM t1;
+  ALTER TABLE t1 ADD COLUMN c;
+  UPDATE t1 SET c=a*rowid+10000;
+  CREATE INDEX t1ab ON t1(a,b);
+  
+  CREATE TABLE t2(x,y);
+  INSERT INTO t2 VALUES(4,44),(5,55),(6,66),(7,77);
+  INSERT INTO t2 SELECT x+4, (x+4)*11 FROM t2;
+  INSERT INTO t2 SELECT x+8, (x+8)*11 FROM t2;
+  INSERT INTO t2 SELECT x+16, (x+16)*11 FROM t2;
+  INSERT INTO t2 SELECT x+32, (x+32)*11 FROM t2;
+  INSERT INTO t2 SELECT x+64, (x+32)*11 FROM t2;
+  ALTER TABLE t2 ADD COLUMN z;
+  UPDATE t2 SET z=2;
+  CREATE UNIQUE INDEX t2zx ON t2(z,x);
+
+  EXPLAIN QUERY PLAN SELECT x FROM t1, t2 WHERE a=z AND c=x;
+} {/.*SCAN t1.*SEARCH t2.*/}
+do_execsql_test 1.2 {
+  EXPLAIN QUERY PLAN SELECT x FROM t2, t1 WHERE a=z AND c=x;
+} {/.*SCAN t1.*SEARCH t2.*/}
+do_execsql_test 1.3 {
+  ANALYZE;
+  EXPLAIN QUERY PLAN SELECT x FROM t1, t2 WHERE a=z AND c=x;
+} {/.*SCAN t1.*SEARCH t2.*/}
+do_execsql_test 1.4 {
+  EXPLAIN QUERY PLAN SELECT x FROM t2, t1 WHERE a=z AND c=x;
+} {/.*SCAN t1.*SEARCH t2.*/}
+
+finish_test
diff --git a/test/whereF.test b/test/whereF.test
new file mode 100644
index 0000000000000000000000000000000000000000..ac7fd807b8e605502513be19d5e74cafd631acd0
--- /dev/null
+++ b/test/whereF.test
@@ -0,0 +1,312 @@
+# 2012 November 9
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+# Test cases for query planning decisions.
+
+
+#
+# The tests in this file demonstrate the behaviour of the query planner
+# in determining the order in which joined tables are scanned.
+#
+# Assume there are two tables being joined - t1 and t2. Each has a cost
+# if it is the outer loop, and a cost if it is the inner loop. As follows:
+#
+#   t1(outer) - cost of scanning t1 as the outer loop.
+#   t1(inner) - cost of scanning t1 as the inner loop.
+#   t2(outer) - cost of scanning t2 as the outer loop.
+#   t2(inner) - cost of scanning t2 as the inner loop.
+#
+# Depending on the order in which the planner nests the scans, the total
+# cost of the join query is one of:
+#
+#   t1(outer) * t2(inner)
+#   t2(outer) * t1(inner)
+#
+# The tests in this file attempt to verify that the planner nests joins in
+# the correct order when the following are true:
+#
+#   + (t1(outer) * t2(inner)) > (t1(inner) * t2(outer)
+#   +  t1(outer) < t2(outer)
+#
+# In other words, when the best overall query plan has t2 as the outer loop,
+# but when the outer loop is considered independent of the inner, t1 is the
+# most efficient choice.
+#
+# In order to make them more predictable, automatic indexes are turned off for
+# the tests in this file.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix whereF
+
+do_execsql_test 1.0 {
+  PRAGMA automatic_index = 0;
+  CREATE TABLE t1(a, b, c);
+  CREATE TABLE t2(d, e, f);
+  CREATE UNIQUE INDEX i1 ON t1(a);
+  CREATE UNIQUE INDEX i2 ON t2(d);
+} {}
+
+foreach {tn sql} {
+  1 "SELECT * FROM t1,           t2 WHERE t1.a=t2.e AND t2.d<t1.b AND t1.c!=10"
+  2 "SELECT * FROM t2,           t1 WHERE t1.a=t2.e AND t2.d<t1.b AND t1.c!=10"
+  3 "SELECT * FROM t2 CROSS JOIN t1 WHERE t1.a=t2.e AND t2.d<t1.b AND t1.c!=10"
+} {
+  do_test 1.$tn {
+    db eval "EXPLAIN QUERY PLAN $sql"
+   } {/.*SCAN t2\y.*SEARCH t1\y.*/}
+}
+
+do_execsql_test 2.0 {
+  DROP TABLE t1;
+  DROP TABLE t2;
+  CREATE TABLE t1(a, b, c);
+  CREATE TABLE t2(d, e, f);
+
+  CREATE UNIQUE INDEX i1 ON t1(a);
+  CREATE UNIQUE INDEX i2 ON t1(b);
+  CREATE UNIQUE INDEX i3 ON t2(d);
+} {}
+
+foreach {tn sql} {
+  1 "SELECT * FROM t1,           t2 WHERE t1.a>? AND t2.d>t1.c AND t1.b=t2.e"
+  2 "SELECT * FROM t2,           t1 WHERE t1.a>? AND t2.d>t1.c AND t1.b=t2.e"
+  3 "SELECT * FROM t2 CROSS JOIN t1 WHERE t1.a>? AND t2.d>t1.c AND t1.b=t2.e"
+} {
+  do_test 2.$tn {
+    db eval "EXPLAIN QUERY PLAN $sql"
+   } {/.*SCAN t2\y.*SEARCH t1\y.*/}
+}
+
+do_execsql_test 3.0 {
+  DROP TABLE t1;
+  DROP TABLE t2;
+  CREATE TABLE t1(a, b, c);
+  CREATE TABLE t2(d, e, f);
+
+  CREATE UNIQUE INDEX i1 ON t1(a, b);
+  CREATE INDEX i2 ON t2(d);
+} {}
+
+foreach {tn sql} {
+  1 {SELECT t1.a, t1.b, t2.d, t2.e FROM t1, t2 
+     WHERE t2.d=t1.b AND t1.a=(t2.d+1) AND t1.b = (t2.e+1)}
+
+  2 {SELECT t1.a, t1.b, t2.d, t2.e FROM t2, t1 
+     WHERE t2.d=t1.b AND t1.a=(t2.d+1) AND t1.b = (t2.e+1)}
+
+  3 {SELECT t1.a, t1.b, t2.d, t2.e FROM t2 CROSS JOIN t1 
+     WHERE t2.d=t1.b AND t1.a=(t2.d+1) AND t1.b = (t2.e+1)}
+} {
+  do_test 3.$tn {
+    db eval "EXPLAIN QUERY PLAN $sql"
+   } {/.*SCAN t2\y.*SEARCH t1\y.*/}
+}
+
+do_execsql_test 4.0 {
+  CREATE TABLE t4(a,b,c,d,e, PRIMARY KEY(a,b,c));
+  CREATE INDEX t4adc ON t4(a,d,c);
+  CREATE UNIQUE INDEX t4aebc ON t4(a,e,b,c);
+  EXPLAIN QUERY PLAN SELECT rowid FROM t4 WHERE a=? AND b=?;
+} {/a=. AND b=./}
+
+#-------------------------------------------------------------------------
+# Test the following case:
+#
+#   ... FROM t1, t2 WHERE (
+#     t2.rowid = +t1.rowid OR (t2.f2 = t1.f1 AND t1.f1!=-1)
+#   )
+#
+# where there is an index on t2(f2). The planner should use "t1" as the
+# outer loop. The inner loop, on "t2", is an OR optimization. One pass
+# for:
+#
+#     t2.rowid = $1
+#
+# and another for:
+#
+#     t2.f2=$1 AND $1!=-1
+#
+# the test is to ensure that on the second pass, the ($1!=-1) condition
+# is tested before any seek operations are performed - i.e. outside of
+# the loop through the f2=$1 range of the t2(f2) index.
+#
+reset_db
+do_execsql_test 5.0 {
+  CREATE TABLE t1(f1);
+  CREATE TABLE t2(f2);
+  CREATE INDEX t2f ON t2(f2);
+
+  INSERT INTO t1 VALUES(-1);
+  INSERT INTO t1 VALUES(-1);
+  INSERT INTO t1 VALUES(-1);
+  INSERT INTO t1 VALUES(-1);
+
+  WITH w(i) AS (
+    SELECT 1 UNION ALL SELECT i+1 FROM w WHERE i<1000
+  )
+  INSERT INTO t2 SELECT -1 FROM w;
+}
+
+do_execsql_test 5.1 {
+  SELECT count(*) FROM t1, t2 WHERE t2.rowid = +t1.rowid
+} {4}
+do_test 5.2 { expr [db status vmstep]<200 } 1
+
+do_execsql_test 5.3 {
+  SELECT count(*) FROM t1, t2 WHERE (
+    t2.rowid = +t1.rowid OR t2.f2 = t1.f1
+  )
+} {4000}
+do_test 5.4 { expr [db status vmstep]>1000 } 1
+
+do_execsql_test 5.5 {
+  SELECT count(*) FROM t1, t2 WHERE (
+    t2.rowid = +t1.rowid OR (t2.f2 = t1.f1 AND t1.f1!=-1)
+  )
+} {4}
+do_test 5.6 { expr [db status vmstep]<200 } 1
+
+# 2017-09-04 ticket b899b6042f97f52d
+# Segfault on correlated subquery...
+#
+ifcapable json1&&vtab {
+  do_execsql_test 6.1 {
+    CREATE TABLE t6(x);
+    SELECT * FROM t6 WHERE 1 IN (SELECT value FROM json_each(x));
+  } {}
+
+  do_execsql_test 6.2 {
+    DROP TABLE t6;
+    CREATE TABLE t6(a,b,c);
+    INSERT INTO t6 VALUES
+     (0,null,'{"a":0,"b":[3,4,5],"c":{"x":4.5,"y":7.8}}'),
+     (1,null,'{"a":1,"b":[3,4,5],"c":{"x":4.5,"y":7.8}}'),
+     (2,null,'{"a":9,"b":[3,4,5],"c":{"x":4.5,"y":7.8}}');
+    SELECT * FROM t6
+     WHERE (EXISTS (SELECT 1 FROM json_each(t6.c) AS x WHERE x.value=1));
+  } {1 {} {{"a":1,"b":[3,4,5],"c":{"x":4.5,"y":7.8}}}}
+
+  # Another test case derived from a posting by Wout Mertens on the
+  # sqlite-users mailing list on 2017-10-04.
+  do_execsql_test 6.3 {
+    DROP TABLE IF EXISTS t;
+    CREATE TABLE t(json JSON);
+    SELECT * FROM t
+     WHERE(EXISTS(SELECT 1 FROM json_each(t.json,"$.foo") j
+                   WHERE j.value = 'meep'));
+  } {}
+  do_execsql_test 6.4 {
+    INSERT INTO t VALUES('{"xyzzy":null}');
+    INSERT INTO t VALUES('{"foo":"meep","other":12345}');
+    INSERT INTO t VALUES('{"foo":"bingo","alt":5.25}');
+    SELECT * FROM t
+     WHERE(EXISTS(SELECT 1 FROM json_each(t.json,"$.foo") j
+                   WHERE j.value = 'meep'));
+  } {{{"foo":"meep","other":12345}}}
+}
+
+# 2018-01-27
+# Ticket https://sqlite.org/src/tktview/ec32177c99ccac2b180fd3ea2083
+# Incorrect result when using the new OR clause factoring optimization
+#
+# This is the original test case as reported on the sqlite-users mailing
+# list
+#
+do_execsql_test 7.1 {
+  DROP TABLE IF EXISTS cd;
+  CREATE TABLE cd ( cdid INTEGER PRIMARY KEY NOT NULL, genreid integer );
+  CREATE INDEX cd_idx_genreid ON cd (genreid);
+  INSERT INTO cd  ( cdid, genreid ) VALUES
+                     ( 1,    1 ),
+                     ( 2, NULL ),
+                     ( 3, NULL ),
+                     ( 4, NULL ),
+                     ( 5, NULL );
+  
+  SELECT cdid
+    FROM cd me
+  WHERE 2 > (
+    SELECT COUNT( * )
+      FROM cd rownum__emulation
+    WHERE
+      (
+        me.genreid IS NOT NULL
+          AND
+        rownum__emulation.genreid IS NULL
+      )
+        OR
+      (
+        me.genreid IS NOT NULL
+          AND
+        rownum__emulation.genreid IS NOT NULL
+          AND
+        rownum__emulation.genreid < me.genreid
+      )
+        OR
+      (
+        ( me.genreid = rownum__emulation.genreid OR ( me.genreid IS NULL
+  AND rownum__emulation.genreid IS NULL ) )
+          AND
+        rownum__emulation.cdid > me.cdid
+      )
+  );
+} {4 5}
+
+# Simplified test cases from the ticket
+#
+do_execsql_test 7.2 {
+  DROP TABLE IF EXISTS t1;
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+  INSERT INTO t1(a,b) VALUES(1,1);
+  CREATE TABLE t2(aa INTEGER PRIMARY KEY, bb);
+  INSERT INTO t2(aa,bb) VALUES(1,1),(2,NULL),(3,NULL);
+  SELECT (
+    SELECT COUNT(*) FROM t2
+     WHERE ( t1.b IS NOT NULL AND t2.bb IS NULL )
+        OR ( t2.bb < t1.b )
+        OR ( t1.b IS t2.bb AND t2.aa > t1.a )
+    )
+    FROM t1;
+} {2}
+
+# The fix for ticket ec32177c99ccac2b180fd3ea2083 only makes a difference
+# in the output when there is a TERM_VNULL entry in the WhereClause array.
+# And TERM_VNULL entries are only generated when compiling with 
+# SQLITE_ENABLE_STAT4.  Nevertheless, it is correct that TERM_VIRTUAL terms
+# should not participate in the factoring optimization.  In all cases other
+# than TERM_VNULL, participation is harmless, but it does consume a few
+# extra CPU cycles.
+#
+# The following test verifies that the TERM_VIRTUAL terms resulting from
+# a GLOB operator do not appear anywhere in the generated code.  This
+# confirms that the problem is fixed, even on builds that omit STAT4.
+#
+do_execsql_test 7.3 {
+  DROP TABLE IF EXISTS t1;
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b TEXT);
+  INSERT INTO t1(a,b) VALUES(1,'abcxyz');
+  CREATE TABLE t2(aa INTEGER PRIMARY KEY, bb TEXT);
+  INSERT INTO t2(aa,bb) VALUES(1,'abc'),(2,'wxyz'),(3,'xyz');
+  CREATE INDEX t2bb ON t2(bb);
+  EXPLAIN SELECT (
+    SELECT COUNT(*) FROM t2
+     WHERE ( t1.b GLOB 'a*z' AND t2.bb='xyz' )
+        OR ( t2.bb = t1.b )
+        OR ( t2.aa = t1.a )
+    )
+    FROM t1;
+} {~/ (Lt|Ge) /}
+
+finish_test
diff --git a/test/whereG.test b/test/whereG.test
new file mode 100644
index 0000000000000000000000000000000000000000..c1540582339968e55a7609aa90d61abcf8e80676
--- /dev/null
+++ b/test/whereG.test
@@ -0,0 +1,402 @@
+# 2013-09-05
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+# Test cases for query planning decisions and the likely(), unlikely(), and
+# likelihood() functions.
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix whereG
+
+do_execsql_test whereG-1.0 {
+  CREATE TABLE composer(
+    cid INTEGER PRIMARY KEY,
+    cname TEXT
+  );
+  CREATE TABLE album(
+    aid INTEGER PRIMARY KEY,
+    aname TEXT
+  );
+  CREATE TABLE track(
+    tid INTEGER PRIMARY KEY,
+    cid INTEGER REFERENCES composer,
+    aid INTEGER REFERENCES album,
+    title TEXT
+  );
+  CREATE INDEX track_i1 ON track(cid);
+  CREATE INDEX track_i2 ON track(aid);
+  INSERT INTO composer VALUES(1, 'W. A. Mozart');
+  INSERT INTO composer VALUES(2, 'Beethoven');
+  INSERT INTO composer VALUES(3, 'Thomas Tallis');
+  INSERT INTO composer VALUES(4, 'Joseph Hayden');
+  INSERT INTO composer VALUES(5, 'Thomas Weelkes');
+  INSERT INTO composer VALUES(6, 'J. S. Bach');
+  INSERT INTO composer VALUES(7, 'Orlando Gibbons');
+  INSERT INTO composer VALUES(8, 'Josquin des Prés');
+  INSERT INTO composer VALUES(9, 'Byrd');
+  INSERT INTO composer VALUES(10, 'Francis Poulenc');
+  INSERT INTO composer VALUES(11, 'Mendelsshon');
+  INSERT INTO composer VALUES(12, 'Zoltán Kodály');
+  INSERT INTO composer VALUES(13, 'Handel');
+  INSERT INTO album VALUES(100, 'Kodály: Missa Brevis');
+  INSERT INTO album VALUES(101, 'Messiah');
+  INSERT INTO album VALUES(102, 'Missa Brevis in D-, K.65');
+  INSERT INTO album VALUES(103, 'The complete English anthems');
+  INSERT INTO album VALUES(104, 'Mass in B Minor, BWV 232');
+  INSERT INTO track VALUES(10005, 12, 100, 'Sanctus');
+  INSERT INTO track VALUES(10007, 12, 100, 'Agnus Dei');
+  INSERT INTO track VALUES(10115, 13, 101, 'Surely He Hath Borne Our Griefs');
+  INSERT INTO track VALUES(10129, 13, 101, 'Since By Man Came Death');
+  INSERT INTO track VALUES(10206, 1, 102, 'Agnus Dei');
+  INSERT INTO track VALUES(10301, 3, 103, 'If Ye Love Me');
+  INSERT INTO track VALUES(10402, 6, 104, 'Domine Deus');
+  INSERT INTO track VALUES(10403, 6, 104, 'Qui tollis');
+} {}
+do_eqp_test whereG-1.1 {
+  SELECT DISTINCT aname
+    FROM album, composer, track
+   WHERE unlikely(cname LIKE '%bach%')
+     AND composer.cid=track.cid
+     AND album.aid=track.aid;
+} {composer*track*album}
+do_execsql_test whereG-1.2 {
+  SELECT DISTINCT aname
+    FROM album, composer, track
+   WHERE unlikely(cname LIKE '%bach%')
+     AND composer.cid=track.cid
+     AND album.aid=track.aid;
+} {{Mass in B Minor, BWV 232}}
+
+do_eqp_test whereG-1.3 {
+  SELECT DISTINCT aname
+    FROM album, composer, track
+   WHERE likelihood(cname LIKE '%bach%', 0.5)
+     AND composer.cid=track.cid
+     AND album.aid=track.aid;
+} {/.*track.*composer.*album.*/}
+do_execsql_test whereG-1.4 {
+  SELECT DISTINCT aname
+    FROM album, composer, track
+   WHERE likelihood(cname LIKE '%bach%', 0.5)
+     AND composer.cid=track.cid
+     AND album.aid=track.aid;
+} {{Mass in B Minor, BWV 232}}
+
+do_eqp_test whereG-1.5 {
+  SELECT DISTINCT aname
+    FROM album, composer, track
+   WHERE cname LIKE '%bach%'
+     AND composer.cid=track.cid
+     AND album.aid=track.aid;
+} {/.*track.*(composer.*album|album.*composer).*/}
+do_execsql_test whereG-1.6 {
+  SELECT DISTINCT aname
+    FROM album, composer, track
+   WHERE cname LIKE '%bach%'
+     AND composer.cid=track.cid
+     AND album.aid=track.aid;
+} {{Mass in B Minor, BWV 232}}
+
+do_eqp_test whereG-1.7 {
+  SELECT DISTINCT aname
+    FROM album, composer, track
+   WHERE cname LIKE '%bach%'
+     AND unlikely(composer.cid=track.cid)
+     AND unlikely(album.aid=track.aid);
+} {/.*track.*(composer.*album|album.*composer).*/}
+do_execsql_test whereG-1.8 {
+  SELECT DISTINCT aname
+    FROM album, composer, track
+   WHERE cname LIKE '%bach%'
+     AND unlikely(composer.cid=track.cid)
+     AND unlikely(album.aid=track.aid);
+} {{Mass in B Minor, BWV 232}}
+
+do_test whereG-2.1 {
+  catchsql {
+    SELECT DISTINCT aname
+      FROM album, composer, track
+     WHERE likelihood(cname LIKE '%bach%', -0.01)
+       AND composer.cid=track.cid
+       AND album.aid=track.aid;
+  }
+} {1 {second argument to likelihood() must be a constant between 0.0 and 1.0}}
+do_test whereG-2.2 {
+  catchsql {
+    SELECT DISTINCT aname
+      FROM album, composer, track
+     WHERE likelihood(cname LIKE '%bach%', 1.01)
+       AND composer.cid=track.cid
+       AND album.aid=track.aid;
+  }
+} {1 {second argument to likelihood() must be a constant between 0.0 and 1.0}}
+do_test whereG-2.3 {
+  catchsql {
+    SELECT DISTINCT aname
+      FROM album, composer, track
+     WHERE likelihood(cname LIKE '%bach%', track.cid)
+       AND composer.cid=track.cid
+       AND album.aid=track.aid;
+  }
+} {1 {second argument to likelihood() must be a constant between 0.0 and 1.0}}
+
+# Commuting a term of the WHERE clause should not change the query plan
+#
+do_execsql_test whereG-3.0 {
+  CREATE TABLE a(a1 PRIMARY KEY, a2);
+  CREATE TABLE b(b1 PRIMARY KEY, b2);
+} {}
+do_eqp_test whereG-3.1 {
+  SELECT * FROM a, b WHERE b1=a1 AND a2=5;
+} {/.*SCAN a.*SEARCH b USING INDEX .*b_1 .b1=..*/}
+do_eqp_test whereG-3.2 {
+  SELECT * FROM a, b WHERE a1=b1 AND a2=5;
+} {/.*SCAN a.*SEARCH b USING INDEX .*b_1 .b1=..*/}
+do_eqp_test whereG-3.3 {
+  SELECT * FROM a, b WHERE a2=5 AND b1=a1;
+} {/.*SCAN a.*SEARCH b USING INDEX .*b_1 .b1=..*/}
+do_eqp_test whereG-3.4 {
+  SELECT * FROM a, b WHERE a2=5 AND a1=b1;
+} {/.*SCAN a.*SEARCH b USING INDEX .*b_1 .b1=..*/}
+
+# Ticket [1e64dd782a126f48d78c43a664844a41d0e6334e]:
+# Incorrect result in a nested GROUP BY/DISTINCT due to the use of an OP_SCopy
+# where an OP_Copy was needed.
+#
+do_execsql_test whereG-4.0 {
+  CREATE TABLE t4(x);
+  INSERT INTO t4 VALUES('right'),('wrong');
+  SELECT DISTINCT x
+   FROM (SELECT x FROM t4 GROUP BY x)
+   WHERE x='right'
+   ORDER BY x;
+} {right}
+
+#-------------------------------------------------------------------------
+# Test that likelihood() specifications on indexed terms are taken into 
+# account by various forms of loops.
+#
+#   5.1.*: open ended range scans
+#   5.2.*: skip-scans
+#
+reset_db
+
+do_execsql_test 5.1 {
+  CREATE TABLE t1(a, b, c);
+  CREATE INDEX i1 ON t1(a, b);
+}
+do_eqp_test 5.1.2 {
+  SELECT * FROM t1 WHERE a>?
+} {SEARCH t1 USING INDEX i1 (a>?)}
+do_eqp_test 5.1.3 {
+  SELECT * FROM t1 WHERE likelihood(a>?, 0.9)
+} {SCAN t1}
+do_eqp_test 5.1.4 {
+  SELECT * FROM t1 WHERE likely(a>?)
+} {SCAN t1}
+
+do_test 5.2 {
+  for {set i 0} {$i < 100} {incr i} {
+    execsql { INSERT INTO t1 VALUES('abc', $i, $i); }
+  }
+  execsql { INSERT INTO t1 SELECT 'def', b, c FROM t1; }
+  execsql { ANALYZE }
+} {}
+do_eqp_test 5.2.2 {
+  SELECT * FROM t1 WHERE likelihood(b>?, 0.01)
+} {SEARCH t1 USING INDEX i1 (ANY(a) AND b>?)}
+do_eqp_test 5.2.3 {
+  SELECT * FROM t1 WHERE likelihood(b>?, 0.9)
+} {SCAN t1}
+do_eqp_test 5.2.4 {
+  SELECT * FROM t1 WHERE likely(b>?)
+} {SCAN t1}
+
+ifcapable stat4 {
+  do_eqp_test 5.3.1.stat4 {
+    SELECT * FROM t1 WHERE a=?
+  } {SCAN t1}
+} else {
+  do_eqp_test 5.3.1 {
+    SELECT * FROM t1 WHERE a=?
+  } {SEARCH t1 USING INDEX i1}
+}
+do_eqp_test 5.3.2 {
+  SELECT * FROM t1 WHERE likelihood(a=?, 0.9)
+} {SCAN t1}
+do_eqp_test 5.3.3 {
+  SELECT * FROM t1 WHERE likely(a=?)
+} {SCAN t1}
+
+# 2015-06-18
+# Ticket [https://www.sqlite.org/see/tktview/472f0742a1868fb58862bc588ed70]
+#
+do_execsql_test 6.0 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(i int, x, y, z);
+  INSERT INTO t1 VALUES (1,1,1,1), (2,2,2,2), (3,3,3,3), (4,4,4,4);
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t2(i int, bool char);
+  INSERT INTO t2 VALUES(1,'T'), (2,'F');
+  SELECT count(*) FROM t1 LEFT JOIN t2 ON t1.i=t2.i AND bool='T';
+  SELECT count(*) FROM t1 LEFT JOIN t2 ON likely(t1.i=t2.i) AND bool='T';
+} {4 4}
+
+# 2015-06-20
+# Crash discovered by AFL
+#
+do_execsql_test 7.0 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a, b, PRIMARY KEY(a,b));
+  INSERT INTO t1 VALUES(9,1),(1,2);
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t2(x, y, PRIMARY KEY(x,y));
+  INSERT INTO t2 VALUES(3,3),(4,4);
+  SELECT likely(a), x FROM t1, t2 ORDER BY 1, 2;
+} {1 3 1 4 9 3 9 4}
+do_execsql_test 7.1 {
+  SELECT unlikely(a), x FROM t1, t2 ORDER BY 1, 2;
+} {1 3 1 4 9 3 9 4}
+do_execsql_test 7.2 {
+  SELECT likelihood(a,0.5), x FROM t1, t2 ORDER BY 1, 2;
+} {1 3 1 4 9 3 9 4}
+do_execsql_test 7.3 {
+  SELECT coalesce(a,a), x FROM t1, t2 ORDER BY 1, 2;
+} {1 3 1 4 9 3 9 4}
+
+# 2019-08-22
+# Ticket https://www.sqlite.org/src/info/7e07a3dbf5a8cd26
+#
+do_execsql_test 8.1 {
+  DROP TABLE IF EXISTS t0;
+  CREATE TABLE t0 (c0);
+  INSERT INTO t0(c0) VALUES ('a');
+  SELECT LIKELY(t0.rowid) <= '0' FROM t0;
+} {1}
+do_execsql_test 8.2 {
+  SELECT * FROM t0 WHERE LIKELY(t0.rowid) <= '0';
+} {a}
+do_execsql_test 8.3 {
+  SELECT (t0.rowid) <= '0' FROM t0;
+} {0}
+do_execsql_test 8.4 {
+  SELECT * FROM t0 WHERE (t0.rowid) <= '0';
+} {}
+do_execsql_test 8.5 {
+  SELECT unlikely(t0.rowid) <= '0', likelihood(t0.rowid,0.5) <= '0' FROM t0;
+} {1 1}
+do_execsql_test 8.6 {
+  SELECT * FROM t0 WHERE unlikely(t0.rowid) <= '0';
+} {a}
+do_execsql_test 8.7 {
+  SELECT * FROM t0 WHERE likelihood(t0.rowid, 0.5) <= '0';
+} {a}
+do_execsql_test 8.8 {
+  SELECT unlikely(t0.rowid <= '0'),
+         likely(t0.rowid <= '0'),
+         likelihood(t0.rowid <= '0',0.5)
+    FROM t0;
+} {0 0 0}
+do_execsql_test 8.9 {
+  SELECT * FROM t0 WHERE unlikely(t0.rowid <= '0');
+} {}
+do_execsql_test 8.10 {
+  SELECT * FROM t0 WHERE likelihood(t0.rowid <= '0', 0.5);
+} {}
+# Forum https://sqlite.org/forum/forumpost/45ec3d9788
+reset_db
+do_execsql_test 8.11 {
+  CREATE TABLE t1(c0 INT);
+  INSERT INTO t1(c0) VALUES (NULL);
+  CREATE INDEX i46 ON t1(CAST( (c0 IS TRUE) AS TEXT));
+  CREATE VIEW v0(c2) AS SELECT CAST( (c0 IS TRUE) AS TEXT ) FROM t1;
+}
+do_execsql_test 8.12 {
+  SELECT quote(c0), quote(c2) FROM t1, v0 WHERE  (0 < LIKELY(v0.c2));
+} {NULL '0'} 
+do_execsql_test 8.13 {
+  SELECT quote(c0), quote(c2) FROM t1, v0 WHERE  (0 < LIKELY(v0.c2)) IS TRUE;
+} {NULL '0'}
+
+# 2019-12-31: assertion fault discovered by Yongheng's fuzzer.
+# Harmless memIsValid() due to the code generators failure to
+# release the registers used by OP_ResultRow.
+#
+do_execsql_test 9.10 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a, b FLOAT);
+  INSERT INTO t1(a) VALUES(''),(NULL),('X'),(NULL);
+  SELECT coalesce(max(quote(a)),10) FROM t1 GROUP BY a;
+} {NULL '' 'X'}
+
+# 2020-06-14: assert() changed back into testcase()
+# ticket 9fb26d37cefaba40
+#
+reset_db
+do_execsql_test 10.1 {
+  CREATE TABLE a(b TEXT);  INSERT INTO a VALUES(0),(4),(9);
+  CREATE TABLE c(d NUM);
+  CREATE VIEW f(g, h) AS SELECT b, 0 FROM a UNION SELECT d, d FROM c;
+  SELECT g = g FROM f GROUP BY h;
+} {1}
+
+reset_db
+do_execsql_test 11.0 {
+  CREATE TABLE t1(x PRIMARY KEY, y);
+  INSERT INTO t1 VALUES('AAA', 'BBB');
+
+  CREATE TABLE t2(z);
+  INSERT INTO t2 VALUES('t2');
+
+  CREATE TABLE t3(x PRIMARY KEY, y);
+  INSERT INTO t3 VALUES('AAA', 'AAA');
+}
+
+do_execsql_test 11.1.1 {
+  SELECT * FROM t1 JOIN t2 ON unlikely(x=y) AND y='AAA'
+}
+do_execsql_test 11.1.2 {
+  SELECT * FROM t1 JOIN t2 ON likely(x=y) AND y='AAA'
+}
+do_execsql_test 11.1.3 {
+  SELECT * FROM t1 JOIN t2 ON x=y AND y='AAA'
+}
+
+do_execsql_test 11.2.1 {
+  SELECT * FROM t3 JOIN t2 ON unlikely(x=y) AND y='AAA'
+} {AAA AAA t2}
+do_execsql_test 11.2.2 {
+  SELECT * FROM t3 JOIN t2 ON likely(x=y) AND y='AAA'
+} {AAA AAA t2}
+do_execsql_test 11.2.3 {
+  SELECT * FROM t3 JOIN t2 ON x=y AND y='AAA'
+} {AAA AAA t2}
+
+# 2021-06-14 forum https://sqlite.org/forum/forumpost/3b940c437a
+# Affinity problem when a likely() function is used as a column in
+# an index.
+#
+reset_db
+do_execsql_test 12.0 {
+  CREATE TABLE t1(a REAL);
+  INSERT INTO t1(a) VALUES(123);
+  CREATE INDEX t1x1 ON t1(likely(a));
+  SELECT typeof(likely(a)) FROM t1 NOT INDEXED;
+  SELECT typeof(likely(a)) FROM t1 INDEXED BY t1x1;
+} {real real}
+do_execsql_test 12.1 {
+  CREATE INDEX t1x2 ON t1(abs(a));
+  SELECT typeof(abs(a)) FROM t1 NOT INDEXED;
+  SELECT typeof(abs(a)) FROM t1 INDEXED BY t1x2;
+} {real real}
+
+
+finish_test
diff --git a/test/whereH.test b/test/whereH.test
new file mode 100644
index 0000000000000000000000000000000000000000..c252fe1ef73c624c4f501cb4fa1089c21d55ceaf
--- /dev/null
+++ b/test/whereH.test
@@ -0,0 +1,139 @@
+# 2014-03-31
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+# Test cases for query planning decisions where one candidate index
+# covers a proper superset of the WHERE clause terms of another
+# candidate index.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_execsql_test whereH-1.1 {
+  CREATE TABLE t1(a,b,c,d);
+  CREATE INDEX t1abc ON t1(a,b,c);
+  CREATE INDEX t1bc ON t1(b,c);
+
+  EXPLAIN QUERY PLAN
+  SELECT d FROM t1 WHERE a=? AND b=? AND c>=? ORDER BY c;
+} {/INDEX t1abc /}
+do_execsql_test whereH-1.2 {
+  EXPLAIN QUERY PLAN
+  SELECT d FROM t1 WHERE a=? AND b=? AND c>=? ORDER BY c;
+} {~/TEMP B-TREE FOR ORDER BY/}
+
+do_execsql_test whereH-2.1 {
+  DROP TABLE t1;
+  CREATE TABLE t1(a,b,c,d);
+  CREATE INDEX t1bc ON t1(b,c);
+  CREATE INDEX t1abc ON t1(a,b,c);
+
+  EXPLAIN QUERY PLAN
+  SELECT d FROM t1 WHERE a=? AND b=? AND c>=? ORDER BY c;
+} {/INDEX t1abc /}
+do_execsql_test whereH-2.2 {
+  EXPLAIN QUERY PLAN
+  SELECT d FROM t1 WHERE a=? AND b=? AND c>=? ORDER BY c;
+} {~/TEMP B-TREE FOR ORDER BY/}
+
+do_execsql_test whereH-3.1 {
+  DROP TABLE t1;
+  CREATE TABLE t1(a,b,c,d,e);
+  CREATE INDEX t1cd ON t1(c,d);
+  CREATE INDEX t1bcd ON t1(b,c,d);
+  CREATE INDEX t1abcd ON t1(a,b,c,d);
+
+  EXPLAIN QUERY PLAN
+  SELECT d FROM t1 WHERE a=? AND b=? AND c=? AND d>=? ORDER BY d;
+} {/INDEX t1abcd /}
+do_execsql_test whereH-3.2 {
+  EXPLAIN QUERY PLAN
+  SELECT d FROM t1 WHERE a=? AND b=? AND c=? AND d>=? ORDER BY d;
+} {~/TEMP B-TREE FOR ORDER BY/}
+
+do_execsql_test whereH-4.1 {
+  DROP TABLE t1;
+  CREATE TABLE t1(a,b,c,d,e);
+  CREATE INDEX t1cd ON t1(c,d);
+  CREATE INDEX t1abcd ON t1(a,b,c,d);
+  CREATE INDEX t1bcd ON t1(b,c,d);
+
+  EXPLAIN QUERY PLAN
+  SELECT d FROM t1 WHERE a=? AND b=? AND c=? AND d>=? ORDER BY d;
+} {/INDEX t1abcd /}
+do_execsql_test whereH-4.2 {
+  EXPLAIN QUERY PLAN
+  SELECT d FROM t1 WHERE a=? AND b=? AND c=? AND d>=? ORDER BY d;
+} {~/TEMP B-TREE FOR ORDER BY/}
+
+do_execsql_test whereH-5.1 {
+  DROP TABLE t1;
+  CREATE TABLE t1(a,b,c,d,e);
+  CREATE INDEX t1bcd ON t1(b,c,d);
+  CREATE INDEX t1cd ON t1(c,d);
+  CREATE INDEX t1abcd ON t1(a,b,c,d);
+
+  EXPLAIN QUERY PLAN
+  SELECT d FROM t1 WHERE a=? AND b=? AND c=? AND d>=? ORDER BY d;
+} {/INDEX t1abcd /}
+do_execsql_test whereH-5.2 {
+  EXPLAIN QUERY PLAN
+  SELECT d FROM t1 WHERE a=? AND b=? AND c=? AND d>=? ORDER BY d;
+} {~/TEMP B-TREE FOR ORDER BY/}
+
+do_execsql_test whereH-6.1 {
+  DROP TABLE t1;
+  CREATE TABLE t1(a,b,c,d,e);
+  CREATE INDEX t1bcd ON t1(b,c,d);
+  CREATE INDEX t1abcd ON t1(a,b,c,d);
+  CREATE INDEX t1cd ON t1(c,d);
+
+  EXPLAIN QUERY PLAN
+  SELECT d FROM t1 WHERE a=? AND b=? AND c=? AND d>=? ORDER BY d;
+} {/INDEX t1abcd /}
+do_execsql_test whereH-6.2 {
+  EXPLAIN QUERY PLAN
+  SELECT d FROM t1 WHERE a=? AND b=? AND c=? AND d>=? ORDER BY d;
+} {~/TEMP B-TREE FOR ORDER BY/}
+
+do_execsql_test whereH-7.1 {
+  DROP TABLE t1;
+  CREATE TABLE t1(a,b,c,d,e);
+  CREATE INDEX t1abcd ON t1(a,b,c,d);
+  CREATE INDEX t1bcd ON t1(b,c,d);
+  CREATE INDEX t1cd ON t1(c,d);
+
+  EXPLAIN QUERY PLAN
+  SELECT d FROM t1 WHERE a=? AND b=? AND c=? AND d>=? ORDER BY d;
+} {/INDEX t1abcd /}
+do_execsql_test whereH-7.2 {
+  EXPLAIN QUERY PLAN
+  SELECT d FROM t1 WHERE a=? AND b=? AND c=? AND d>=? ORDER BY d;
+} {~/TEMP B-TREE FOR ORDER BY/}
+
+do_execsql_test whereH-8.1 {
+  DROP TABLE t1;
+  CREATE TABLE t1(a,b,c,d,e);
+  CREATE INDEX t1abcd ON t1(a,b,c,d);
+  CREATE INDEX t1cd ON t1(c,d);
+  CREATE INDEX t1bcd ON t1(b,c,d);
+
+  EXPLAIN QUERY PLAN
+  SELECT d FROM t1 WHERE a=? AND b=? AND c=? AND d>=? ORDER BY d;
+} {/INDEX t1abcd /}
+do_execsql_test whereH-8.2 {
+  EXPLAIN QUERY PLAN
+  SELECT d FROM t1 WHERE a=? AND b=? AND c=? AND d>=? ORDER BY d;
+} {~/TEMP B-TREE FOR ORDER BY/}
+
+
+
+finish_test
diff --git a/test/whereI.test b/test/whereI.test
new file mode 100644
index 0000000000000000000000000000000000000000..38e014884430bf7ed7d0fd1da6c6f619c31f7a3a
--- /dev/null
+++ b/test/whereI.test
@@ -0,0 +1,99 @@
+# 2014-03-31
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# The focus of this file is testing the OR optimization on WITHOUT ROWID 
+# tables.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix whereI
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b, c, PRIMARY KEY(a)) WITHOUT ROWID;
+  INSERT INTO t1 VALUES(1, 'a', 'z');
+  INSERT INTO t1 VALUES(2, 'b', 'y');
+  INSERT INTO t1 VALUES(3, 'c', 'x');
+  INSERT INTO t1 VALUES(4, 'd', 'w');
+  CREATE INDEX i1 ON t1(b);
+  CREATE INDEX i2 ON t1(c);
+}
+
+do_eqp_test 1.1 {
+  SELECT a FROM t1 WHERE b='b' OR c='x'
+} {
+  QUERY PLAN
+  `--MULTI-INDEX OR
+     |--INDEX 1
+     |  `--SEARCH t1 USING INDEX i1 (b=?)
+     `--INDEX 2
+        `--SEARCH t1 USING INDEX i2 (c=?)
+}
+
+do_execsql_test 1.2 {
+  SELECT a FROM t1 WHERE b='b' OR c='x'
+} {2 3}
+
+do_execsql_test 1.3 {
+  SELECT a FROM t1 WHERE b='a' OR c='z'
+} {1}
+
+#----------------------------------------------------------------------
+# Try that again, this time with non integer PRIMARY KEY values.
+#
+do_execsql_test 2.0 {
+  CREATE TABLE t2(a, b, c, PRIMARY KEY(a)) WITHOUT ROWID;
+  INSERT INTO t2 VALUES('i', 'a', 'z');
+  INSERT INTO t2 VALUES('ii', 'b', 'y');
+  INSERT INTO t2 VALUES('iii', 'c', 'x');
+  INSERT INTO t2 VALUES('iv', 'd', 'w');
+  CREATE INDEX i3 ON t2(b);
+  CREATE INDEX i4 ON t2(c);
+}
+
+do_eqp_test 2.1 {
+  SELECT a FROM t2 WHERE b='b' OR c='x'
+} {
+  QUERY PLAN
+  `--MULTI-INDEX OR
+     |--INDEX 1
+     |  `--SEARCH t2 USING INDEX i3 (b=?)
+     `--INDEX 2
+        `--SEARCH t2 USING INDEX i4 (c=?)
+}
+
+do_execsql_test 2.2 {
+  SELECT a FROM t2 WHERE b='b' OR c='x'
+} {ii iii}
+
+do_execsql_test 2.3 {
+  SELECT a FROM t2 WHERE b='a' OR c='z'
+} {i}
+
+#----------------------------------------------------------------------
+# On a table with a multi-column PK.
+#
+do_execsql_test 3.0 {
+  CREATE TABLE t3(a, b, c, d, PRIMARY KEY(c, b)) WITHOUT ROWID;
+
+  INSERT INTO t3 VALUES('f', 1, 1, 'o');
+  INSERT INTO t3 VALUES('o', 2, 1, 't');
+  INSERT INTO t3 VALUES('t', 1, 2, 't');
+  INSERT INTO t3 VALUES('t', 2, 2, 'f');
+
+  CREATE INDEX t3i1 ON t3(d);
+  CREATE INDEX t3i2 ON t3(a);
+
+  SELECT c||'.'||b FROM t3 WHERE a='t' OR d='t'
+} {
+  2.1 2.2 1.2
+}
+
+finish_test
diff --git a/test/whereJ.test b/test/whereJ.test
new file mode 100644
index 0000000000000000000000000000000000000000..c31ab8c37048c940a3ce535d5b7bc3e189e89ca6
--- /dev/null
+++ b/test/whereJ.test
@@ -0,0 +1,674 @@
+# 2014-06-06
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+# This file implements regression tests for a complex
+# query planning case.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix whereJ
+
+ifcapable !stat4 {
+  finish_test
+  return
+}
+
+do_execsql_test whereJ-1.0 {
+  CREATE TABLE tx1 (
+    est,
+    cid,
+    sid,	
+    fid,
+    aid,
+    edate,
+    rstat,
+    ftype,
+    cx,
+    fyear,
+    fp,
+    acode,
+    a1,
+    curx,
+    tdate,
+    gstat,
+    trgtpx,
+    effdate,
+    adate,
+    ytime,
+    mstat
+  );
+  CREATE INDEX ix0 on tx1(a1,curx,aid,cid,sid,ftype,fp,fyear DESC,edate DESC,fid);
+  CREATE INDEX ix1 on tx1(a1,curx,aid,ftype,fp,fyear DESC,fid,edate DESC,cid,sid);
+  CREATE INDEX ix2 on tx1(a1,curx,cid,sid,ftype,fp,fyear DESC,edate DESC,aid,fid);
+  CREATE INDEX ix3 on tx1(a1,curx,fid,ftype,fp,fyear DESC,cid,sid,aid,edate DESC);
+  CREATE INDEX ix4 on tx1(a1,curx,ftype,cid,sid,aid,edate DESC,fid,fp,fyear DESC);
+  CREATE INDEX ix5 on tx1(a1,curx,ftype,aid,fid,cid,sid,edate DESC,fp,fyear DESC);
+  CREATE INDEX ix6 on tx1(ftype,fp,fyear DESC,cid,sid,edate DESC,a1,fid,aid,curx,est,rstat,cx,acode,tdate,gstat,trgtpx,effdate,adate,ytime,mstat);
+  CREATE INDEX ix7 on tx1(cid,a1,curx,sid,ftype,est,fid,aid,edate,rstat,cx,fyear,fp,acode,tdate,gstat,trgtpx,effdate,adate,ytime,mstat);
+  CREATE INDEX ix8 on tx1(cid,sid,edate DESC,aid,est);
+  CREATE INDEX ix9 on tx1(aid,edate DESC,a1,curx);
+} {}
+do_execsql_test whereJ-1.1 {
+  ANALYZE sqlite_master;
+  DELETE FROM sqlite_stat1;
+  DELETE FROM sqlite_stat4;
+  INSERT INTO sqlite_stat1 VALUES('tx1','ix9','11680827 289 2 2 2');
+  INSERT INTO sqlite_stat1 VALUES('tx1','ix8','11680827 286 250 2 2 2');
+  INSERT INTO sqlite_stat1 VALUES('tx1','ix7','11680827 286 194 98 88 83 18 7 6 2 2 2 2 2 2 2 2 2 2 2 2 2');
+  INSERT INTO sqlite_stat1 VALUES('tx1','ix6','11680827 5840414 5840414 5840414 240 212 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2');
+  INSERT INTO sqlite_stat1 VALUES('tx1','ix5','11680827 5840414 2920207 1668690 114 90 8 8 2 2 2');
+  INSERT INTO sqlite_stat1 VALUES('tx1','ix4','11680827 5840414 2920207 1668690 92 83 9 2 2 2 2');
+  INSERT INTO sqlite_stat1 VALUES('tx1','ix3','11680827 5840414 2920207 2048 1835 1835 1835 12 11 8 2');
+  INSERT INTO sqlite_stat1 VALUES('tx1','ix2','11680827 5840414 2920207 98 88 83 83 83 2 2 2');
+  INSERT INTO sqlite_stat1 VALUES('tx1','ix1','11680827 5840414 2920207 117 114 114 114 90 2 2 2');
+  INSERT INTO sqlite_stat1 VALUES('tx1','ix0','11680827 5840414 2920207 117 9 9 9 9 9 2 2');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix9','6736 21 21 21 1','29210 29404 29404 29404 29424','44 12184 13020 13079 29424',X'06030409080416C1150133512800B01FCA');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix9','6658 24 21 21 1','452220 453273 453276 453276 453296','622 226258 235279 236774 453296',X'06030409080416F34501332ADC00AA1BD3');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix9','820 2 2 2 1','1297771 1297869 1297869 1297869 1297869','1964 681724 711020 715822 1297869',X'06030409080317875501332C6C55AF4D');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix9','26985 2216 2216 2216 1','1797607 1797782 1797782 1797782 1799997','3162 970307 1008879 1016089 1799997',X'0603040809041A08040132401A0099A334');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix9','10434 19 17 17 1','2118117 2120403 2120405 2120405 2120421','3815 1136110 1181459 1190207 2120421',X'0603040908041AD36901332CD000861A2F');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix9','437 1 1 1 1','2595414 2595739 2595739 2595739 2595739','5005 1409452 1464066 1475163 2595739',X'0603040808031CE7FD01317FD46BFBCC');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix9','12619 38 38 38 1','2595957 2600212 2600212 2600212 2600249','5007 1410347 1464961 1476068 2600249',X'0603040808041CE87E01328F61008CE96A');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix9','7534 23 18 18 1','3329985 3334890 3334895 3334895 3334912','6901 1834013 1902216 1917268 3334912',X'060304090804244E1901328F59008CAA39');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix9','5693 1 1 1 1','3891665 3893609 3893609 3893609 3893609','8357 2164400 2245393 2263185 3893609',X'0603040808043063B70132B66800A28A43');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix9','44405 2588 2223 1527 1','4220255 4221633 4221998 4222694 4224220','9221 2354858 2441973 2461511 4224220',X'0603040909043377630133517A00B0DE4F');
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+  INSERT INTO sqlite_stat4 VALUES('tx1','ix5','7804279 7173953 7173950 7735 7735 29 29 1 1 1 1','0 0 0 2924165 2924165 2929754 2929754 2929782 2929782 2929782 2929782','0 0 0 9123 14045 191316 195293 2907742 2907742 2907742 2929782',X'0C080808030403080408080333776300FF559475928D013329435A824F');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix5','7804279 7173953 7173950 360 229 27 27 1 1 1 1','0 0 0 3893374 3893505 3893605 3893605 3893609 3893609 3893609 3893609','0 0 0 13912 21124 273265 278784 3866425 3866425 3866425 3893609',X'0C08080803030308040808044717710E070B01E88F0131A5B80098D0A5');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix5','7804279 7173953 7173950 683 671 32 32 1 1 1 1','0 0 0 5191447 5191459 5191477 5191477 5191479 5191479 5191479 5191479','0 0 0 20361 30776 381171 389104 5158962 5158962 5158962 5191479',X'0C08080803030308040808037370D10F00290188450132B537354C5E');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix5','7804279 7173953 7173950 213354 213354 113 113 1 1 1 1','0 0 0 6102233 6102233 6155183 6155183 6155295 6155295 6155295 6155295','0 0 0 26812 39489 472780 483115 6119281 6119281 6119281 6155295',X'0C080808040403080408080300F2FA4400FF5594019B6D01324067714AE8');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix5','7804279 7173953 7173950 3675 3675 241 241 1 1 1 1','0 0 0 6486701 6486701 6489287 6489287 6489349 6489349 6489349 6489349','0 0 0 28380 41383 502486 513750 6452691 6452691 6452691 6489349',X'0C080808040304080408080300F6ABAC6C967D009F84B60132DBDD155A2A');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix5','7804279 7173953 7173950 24063 24063 38 38 1 1 1 1','0 0 0 7080911 7080911 7102380 7102380 7102417 7102417 7102417 7102417','0 0 0 35724 49844 582928 595393 7065320 7065320 7065320 7102417',X'0C0808080404040804080803010B0A5C00FF559400CCD3EE0133294559DDCD');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix5','7804279 7173953 7173950 20284 20284 38 38 1 1 1 1','0 0 0 7107237 7107237 7126606 7126606 7126643 7126643 7126643 7126643','0 0 0 35764 49885 586473 599030 7089546 7089546 7089546 7126643',X'0C0808080404040804080803010B3C6700FF55940114CE73013329432225CC');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix5','7804279 630326 618063 11855 11855 3 1 1 1 1 1','0 7173953 7173953 7665258 7665258 7672559 7672561 7672561 7672561 7672561 7672561','0 1 2 64320 91213 1077048 1100563 7630436 7630436 7630436 7672561',X'0C080908040403020408080400F2FA4400FF559405DD0A23280132DD75009F3468');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix5','7804279 630326 618063 4 4 1 1 1 1 1 1','0 7173953 7173953 7787218 7787218 7787219 7787219 7787219 7787219 7787219 7787219','0 1 2 74034 102405 1189484 1215034 7745001 7745001 7745001 7787219',X'0C0809080403040804080803010DDABE0368B700FEBFF60133068F22D1E5');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix5','7804279 630326 12263 1433 1433 1 1 1 1 1 1','0 7173953 7792016 7797877 7797877 7799309 7799309 7799309 7799309 7799309 7799309','0 1 3 76213 104626 1201397 1227113 7757087 7757087 7757087 7799309',X'0C08090104040408040808030700F2FA4400FF559401C3969E013329461E5052');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix5','3876548 3718791 3718791 8657 8657 605 605 1 1 1 1','7804279 7804279 7804279 8360485 8360485 8364643 8364643 8365247 8365247 8365247 8365247','1 2 4 77865 106290 1217527 1243460 8321843 8321843 8321843 8365247',X'0C09080803030308040808031AD369021FFC0DC36E01328E2F3D9128');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix5','3876548 3718791 3718791 33421 33421 57 26 1 1 1 1','7804279 7804279 7804279 8873934 8873934 8891008 8891039 8891064 8891064 8891064 8891064','1 2 4 78914 107340 1231432 1257622 8846644 8846644 8846644 8891064',X'0C090808030403020408080433776300FF55940CE166232801332A1800836DFB');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix5','3876548 3718791 3718791 2182 2182 94 94 1 1 1 1','7804279 7804279 7804279 9083187 9083187 9085006 9085006 9085089 9085089 9085089 9085089','1 2 4 79307 107733 1237174 1263453 9040316 9040316 9040316 9085089',X'0C09080803030308040808033AC92C021FFC04AF670132B5FC38DBD0');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix5','3876548 3718791 3718791 6023 6023 50 50 1 1 1 1','7804279 7804279 7804279 9393480 9393480 9395815 9395815 9395864 9395864 9395864 9395864','1 2 4 79973 108402 1245294 1271679 9350536 9350536 9350536 9395864',X'0C09080803030308040808034CDD9A7E1C2301C30D0132908703CC11');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix5','3876548 3718791 3718791 79 79 6 6 1 1 1 1','7804279 7804279 7804279 10382946 10382946 10382956 10382956 10382959 10382959 10382959 10382959','1 2 4 82501 110947 1276304 1303221 10336296 10336296 10336296 10382959',X'0C090808040303080408080400E9A10A0CC31602A47201332C6C00ABCD60');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix5','3876548 3718791 3718791 8251 8251 280 280 1 1 1 1','7804279 7804279 7804279 11067468 11067468 11072690 11072690 11072969 11072969 11072969 11072969','1 2 4 85529 113989 1307763 1335183 11025935 11025935 11025935 11072969',X'0C090808040404080408080300FFA4A7008A66AD0089DBDD0132B5FF6AE2B8');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix5','3876548 3718791 3718791 44772 44772 58 58 1 1 1 1','7804279 7804279 7804279 11268036 11268036 11269261 11269261 11269318 11269318 11269318 11269318','1 2 4 87132 115597 1321101 1348736 11222284 11222284 11222284 11269318',X'0C0908080404030804080804010B0A5C00FF5594018ACD0133294300B0E291');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix5','3876548 3718791 3718791 53775 53775 37 19 1 1 1 1','7804279 7804279 7804279 11330929 11330929 11355027 11355045 11355063 11355063 11355063 11355063','1 2 4 87335 115800 1327560 1355328 11308029 11308029 11308029 11355063',X'0C0908080404030204080803010BFA8100FF5594026C24232801332B2E1F8BB5');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix5','3876548 3718791 3718791 39430 39430 39 39 1 1 1 1','7804279 7804279 7804279 11458789 11458789 11476757 11476757 11476795 11476795 11476795 11476795','1 2 4 88502 116970 1340484 1368500 11429761 11429761 11429761 11476795',X'0C09080804040308040808030113B99600FF559402F6AF01332B2E1F8A54');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix5','3876548 157757 157736 5317 5317 1 1 1 1 1 1','7804279 11523070 11523070 11652823 11652823 11658139 11658139 11658139 11658139 11658139 11658139','1 3 5 100045 128561 1480184 1510648 11611105 11611105 11611105 11658139',X'0C0909080404040204080803010BFA8100FF559402594CCB2328013351E85B0F5D');
+} {}
+do_execsql_test whereJ-1.3 {
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix4','7804279 7173953 7173950 4748 4629 308 1 1 1 1 1','0 0 0 634880 634880 639119 639426 639426 639426 639426 639426','0 0 0 779 907 26900 633919 633920 633920 633920 639426',X'0C0808080308040403080803018C4A00F450A80132671F029EAC271DA5');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix4','7804279 7173953 7173950 4608 4608 246 1 1 1 1 1','0 0 0 752580 752580 755578 755823 755823 755823 755823 755823','0 0 0 936 1089 31876 749384 749385 749385 749385 755823',X'0C0808080308030403080804018D4F347FD20131547D018A7500936FE2');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix4','7804279 7173953 7173950 4776 4776 240 1 1 1 1 1','0 0 0 762070 762070 764545 764784 764784 764784 764784 764784','0 0 0 940 1097 32187 758274 758275 758275 758275 764784',X'0C0808080308030403080804018D562E0EAB0131A68F029E9300994D36');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix4','7804279 7173953 7173950 5910 5910 257 1 1 1 1 1','0 0 0 771353 771353 772646 772902 772902 772902 772902 772902','0 0 0 946 1103 32460 766333 766334 766334 766334 772902',X'0C0808080308030404080803018D611726F40130E13C00822B980302A0');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix4','7804279 7173953 7173950 1834 1834 46 1 1 1 1 1','0 0 0 1296866 1296866 1297832 1297869 1297869 1297869 1297869 1297869','0 0 0 2621 2842 56932 1287063 1287064 1287064 1287064 1297869',X'0C080808030803040308080301A6E33010BC01317F2005516E3932DB');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix4','7804279 7173953 7173950 5007 3959 317 1 1 1 1 1','0 0 0 2152400 2152400 2153781 2154097 2154097 2154097 2154097 2154097','0 0 0 5683 6304 111431 2139450 2139457 2139457 2139457 2154097',X'0C080808030803040308080301C3F91E114001315549029F74635F36');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix4','7804279 7173953 7173950 4768 4609 397 1 1 1 1 1','0 0 0 2200466 2200466 2200700 2201096 2201096 2201096 2201096 2201096','0 0 0 5714 6370 114266 2186220 2186227 2186227 2186227 2201096',X'0C080808030803040308080401C42217887E01312D72036D5B009AF3F8');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix4','7804279 7173953 7173950 5177 4669 264 1 1 1 1 1','0 0 0 2234078 2234078 2235865 2236128 2236128 2236128 2236128 2236128','0 0 0 5743 6422 116499 2221108 2221115 2221115 2221115 2236128',X'0C080808030803040308080401C4491EF49D013155450D4B200091BFB3');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix4','7804279 7173953 7173950 7981 5546 272 1 1 1 1 1','0 0 0 2239923 2239923 2242583 2242854 2242854 2242854 2242854 2242854','0 0 0 5746 6428 116800 2227775 2227782 2227782 2227782 2242854',X'0C080808030803040308080301C44E2EFF35013109E67764687E36D6');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix4','7804279 7173953 7173950 351 336 15 1 1 1 1 1','0 0 0 2595725 2595725 2595725 2595739 2595739 2595739 2595739 2595739','0 0 0 6747 7717 144364 2578697 2578708 2578708 2578708 2595739',X'0C080808030803040308080401CCC91782C20131CC1902D7C0008E7A4F');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix4','7804279 7173953 7173950 6022 4942 304 1 1 1 1 1','0 0 0 2648510 2648510 2648849 2649152 2649152 2649152 2649152 2649152','0 0 0 6934 7959 149030 2631886 2631900 2631900 2631900 2649152',X'0C080808030803040308080301CE8C17887E01312D6E036D5B424939');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix4','7804279 7173953 7173950 4752 1965 5 1 1 1 1 1','0 0 0 3161780 3161780 3163740 3163744 3163744 3163744 3163744 3163744','0 0 0 9707 11219 194477 3143873 3143896 3143896 3143896 3163744',X'0C08080803080404030808030213B20116290C01332B9D0270102494C2');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix4','7804279 7173953 7173950 5497 1880 3 1 1 1 1 1','0 0 0 3167643 3167643 3169520 3169522 3169522 3169522 3169522 3169522','0 0 0 9709 11226 194760 3149632 3149655 3149655 3149655 3169522',X'0C08080803080404040808030213B5010B0A5C0133294500FF55941DCA72');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix4','7804279 7173953 7173950 2185 2126 134 1 1 1 1 1','0 0 0 3891669 3891669 3893607 3893609 3893609 3893609 3893609 3893609','0 0 0 13596 15952 257364 3869701 3869733 3869733 3869733 3893609',X'0C080808030804040308080302BD5F01010F13013350517B8BF356D913');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix4','7804279 7173953 7173950 5511 5355 345 1 1 1 1 1','0 0 0 3931849 3931849 3931954 3932298 3932298 3932298 3932298 3932298','0 0 0 13793 16188 260160 3908172 3908206 3908206 3908206 3932298',X'0C080808030803040308080402C14C17887E01312D75036D5B009AF4B1');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix4','7804279 7173953 7173950 5468 5115 310 1 1 1 1 1','0 0 0 3939090 3939090 3939894 3940203 3940203 3940203 3940203 3940203','0 0 0 13803 16200 260571 3916034 3916068 3916068 3916068 3940203',X'0C080808030803040308080302C164191E7F0131A4FC0606F30CE25A');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix4','7804279 7173953 7173950 5275 4792 252 1 1 1 1 1','0 0 0 4590216 4590216 4591340 4591591 4591591 4591591 4591591 4591591','0 0 0 17456 20455 315887 4563939 4563981 4563981 4563981 4591591',X'0C0808080308030403080804049EE51EB67B01317C5204C9D900AE08CD');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix4','7804279 7173953 7173950 339 339 20 1 1 1 1 1','0 0 0 5191257 5191257 5191475 5191479 5191479 5191479 5191479 5191479','0 0 0 20754 24230 366257 5160652 5160701 5160701 5160701 5191479',X'0C08080803080404030808030CEE9300E50D8D013242BE018A755F6BC3');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix4','7804279 7173953 7173950 13 13 1 1 1 1 1 1','0 0 0 6489337 6489337 6489349 6489349 6489349 6489349 6489349 6489349','0 0 0 29449 33987 481632 6453309 6453378 6453378 6453378 6489349',X'0C08080804080304030808030091B3AB600E9801323F54029F7403EF0C');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix4','7804279 630326 618063 10 9 1 1 1 1 1 1','0 7173953 7173953 7787217 7787217 7787219 7787219 7787219 7787219 7787219 7787219','0 1 2 74978 85458 1107555 7744920 7744997 7744997 7744997 7787219',X'0C0809080408030403080804014F459B48960801332ADC01C7A600AA1BA3');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix4','7804279 630326 12263 17 1 1 1 1 1 1 1','0 7173953 7792016 7795570 7795586 7795586 7795586 7795586 7795586 7795586 7795586','0 1 3 78329 89057 1115864 7753287 7753364 7753364 7753364 7795586',X'0C0809010302040404080804070267C1271300E640740133041E00AB540900A3EE16');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix4','3876548 3718791 3718791 397 397 46 1 1 1 1 1','7804279 7804279 7804279 9084892 9084892 9085088 9085089 9085089 9085089 9085089 9085089','1 2 4 87584 99143 1159195 9040539 9040616 9040616 9040616 9085089',X'0C090808030804040308080301CBAF00E5C288013351810C390F26671E');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix4','3876548 3718791 3718791 141 141 20 1 1 1 1 1','7804279 7804279 7804279 10382921 10382921 10382951 10382959 10382959 10382959 10382959 10382959','1 2 4 95054 107437 1210217 10336699 10336776 10336776 10336776 10382959',X'0C09080803080304030808030DB5C14114E301332A7E018A751F17C1');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix4','3876548 157757 157736 83 16 1 1 1 1 1 1','7804279 11523070 11523070 11587733 11587800 11587815 11587815 11587815 11587815 11587815 11587815','1 3 5 112412 126326 1332792 11540704 11540781 11540781 11540781 11587815',X'0C090908030204040308080402A9D12328010B92880133517F029E9D008B5B23');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix3','7804279 7173953 213279 213279 213279 213279 376 212 101 1 1','0 0 12394 12394 12394 12394 18421 18421 18421 18424 18424','0 0 3 3 3 3 810 1027 1949 18324 18424',X'0C0808030808080308030403018A75018788178574013265FC611E2A');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix3','7804279 7173953 86515 86515 86515 86515 377 377 377 1 1','0 0 271240 271240 271240 271240 274521 274521 274521 274780 274780','0 0 8 8 8 8 9766 10762 19602 273178 274780',X'0C080803080808030803040401A79C01886F174AEF0132678B00A4AEFF');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix3','7804279 7173953 193482 193482 193482 193482 444 444 444 1 1','0 0 542802 542802 542802 542802 575453 575453 575453 575505 575505','0 0 27 27 27 27 24310 25597 43165 571774 575505',X'0C080803080808030803040401C3EB018CCE55312F013305B700AF487C');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix3','7804279 7173953 126108 126108 126108 126108 200 200 28 1 1','0 0 747801 747801 747801 747801 762121 762121 762293 762320 762320','0 0 33 33 33 33 30770 32410 56629 757315 762320',X'0C080803080808030803040301C7A6018A9D6AB1100131F17D04364A');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix3','7804279 7173953 149712 149712 149712 149712 216 216 5 1 1','0 0 1107747 1107747 1107747 1107747 1147090 1147090 1147301 1147305 1147305','0 0 98 98 98 98 51603 53785 94043 1139967 1147305',X'0C080803080808030803040302172301B84D2E828501317B95651924');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix3','7804279 7173953 87289 87289 87289 87289 27 27 12 1 1','0 0 1257751 1257751 1257751 1257751 1297850 1297850 1297865 1297869 1297869','0 0 100 100 100 100 57625 60123 107069 1289807 1297869',X'0C0808030808080308040403021FFC02554D00E643C7013242692A9BBC');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix3','7804279 7173953 192597 192597 192597 192597 291 291 3 1 1','0 0 1464077 1464077 1464077 1464077 1512946 1512946 1513234 1513236 1513236','0 0 134 134 134 134 67476 70262 123260 1502886 1513236',X'0C0808030808080308040404029E6201B94000F8341701330419008B74DA');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix3','7804279 7173953 196917 196917 196917 196917 326 326 12 1 1','0 0 1677739 1677739 1677739 1677739 1797333 1797333 1797647 1797658 1797658','0 0 136 136 136 136 76717 80026 143308 1785522 1797658',X'0C0808030808080308040404029E6802B7DC0108ACBA0132DD7B0087795F');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix3','7804279 7173953 140297 140297 140297 140297 206 188 90 1 1','0 0 1951850 1951850 1951850 1951850 2020506 2020524 2020622 2020711 2020711','0 0 146 146 146 146 85439 89181 160816 2006993 2020711',X'0C0808030808080302040403029E8102171603E800FA82B20132B5AD384ECD');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix3','7804279 7173953 132041 132041 132041 132041 173 173 20 1 1','0 0 2415706 2415706 2415706 2415706 2428962 2428962 2429115 2429134 2429134','0 0 163 163 163 163 100984 105182 186071 2412732 2429134',X'0C0808030808080308030403029EB1018BF55020D60131A3D23BB156');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix3','7804279 7173953 6830 6830 6830 6830 35 35 35 1 1','0 0 2595444 2595444 2595444 2595444 2595711 2595711 2595711 2595739 2595739','0 0 169 169 169 169 108584 113037 199947 2578183 2595739',X'0C0808030808080308030403029EC001878C17A7520131A43A6E513C');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix3','7804279 7173953 101615 101615 101615 101615 244 33 33 1 1','0 0 2999185 2999185 2999185 2999185 3019255 3019466 3019466 3019498 3019498','0 0 213 213 213 213 131035 136293 237357 2999333 3019498',X'0C080803080808030203040302D7C001B93E03F041A96D013303017C72B6');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix3','7804279 7173953 26914 26914 26914 26914 87 87 73 1 1','0 0 3868553 3868553 3868553 3868553 3893568 3893568 3893582 3893609 3893609','0 0 387 387 387 387 172456 180121 311050 3869040 3893609',X'0C08080308080803080304040498C86B7EF347CC5A0132B678008A4646');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix3','7804279 7173953 97492 97492 97492 97492 410 410 44 1 1','0 0 4948831 4948831 4948831 4948831 5009456 5009456 5009822 5009865 5009865','0 0 751 751 751 751 226745 236274 399260 4980988 5009865',X'0C08080308080803080404030E565F03686C00F89CD001332A115479DC');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix3','7804279 7173953 1782 1782 1782 1782 52 52 52 1 1','0 0 5190938 5190938 5190938 5190938 5191434 5191434 5191434 5191479 5191479','0 0 800 800 800 800 236362 246237 414618 5161779 5191479',X'0C08080308080803080304040EBD0F0268E064A6DB013242CB00875BAF');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix3','7804279 7173953 4645 4645 4645 4645 17 17 17 1 1','0 0 6485214 6485214 6485214 6485214 6489339 6489339 6489339 6489349 6489349','0 0 1396 1396 1396 1396 317293 329836 538486 6453712 6489349',X'0C080804080808040803040300ABD9B000A69D33737CBB01328F6B0F6298');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix3','7804279 7173953 290196 290196 290196 290196 138 138 26 1 1','0 0 6734628 6734628 6734628 6734628 6744872 6744872 6744984 6745009 6745009','0 0 1641 1641 1641 1641 338986 352099 569319 6708651 6745009',X'0C080804080808030804040400FF5594018819010B3C670133294300B1674C');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix3','7804279 630326 24310 1435 1435 1435 1 1 1 1 1','0 7173953 7763625 7786500 7786500 7786500 7787219 7787219 7787219 7787219 7787219','0 1 3518 4119 4119 4119 726018 753845 1215054 7745002 7787219',X'0C080904010808030204040400FF5594070357AB232800F2FA440133294600A90441');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix3','3876548 3718791 114188 114188 114188 114188 463 61 61 1 1','7804279 7804279 7809377 7809377 7809377 7809377 7864755 7865157 7865157 7865217 7865217','1 2 3751 4413 4413 4413 740133 768607 1233927 7822883 7865217',X'0C0908030808080302030403018A750213B2245416DF860131CB3A2879CC');
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+  INSERT INTO sqlite_stat4 VALUES('tx1','ix0','7804279 7173953 360 6 6 6 6 6 1 1 1','0 0 3893374 3893607 3893607 3893607 3893607 3893607 3893609 3893609 3893609','0 0 13912 240908 247109 247109 247109 247109 3866384 3866425 3893609',X'0C080803030808080804030347177104AF8701317D220E070B687905');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix0','7804279 7173953 683 32 32 32 32 32 2 2 1','0 0 5191447 5191465 5191465 5191465 5191465 5191465 5191479 5191479 5191479','0 0 20361 336764 345696 345696 345696 345696 5158907 5158962 5191479',X'0C08080303080808080403037370D101884501328F690F002900A69C');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix0','7804279 7173953 213354 113 113 113 113 113 1 1 1','0 0 6102233 6155183 6155183 6155183 6155183 6155183 6155295 6155295 6155295','0 0 26812 421693 433202 433202 433202 433202 6119212 6119281 6155295',X'0C080804030808080804040300F2FA44019B6D0132406700FF5594714AE8');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix0','7804279 7173953 3675 241 241 241 241 241 1 1 1','0 0 6486701 6489287 6489287 6489287 6489287 6489287 6489349 6489349 6489349','0 0 28380 450494 462953 462953 462953 462953 6452616 6452691 6489349',X'0C080804040808080804030300F6ABAC009F84B60132DBDD6C967D155A2A');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix0','7804279 7173953 24063 38 38 38 38 38 1 1 1','0 0 7080914 7102383 7102383 7102383 7102383 7102383 7102420 7102420 7102420','0 0 35724 528136 541855 541858 541858 541858 7065247 7065323 7102420',X'0C0808040408080808040403010B0A5C00CCD3EE0133294500FF559459DDCD');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix0','7804279 7173953 20284 38 38 38 38 38 1 1 1','0 0 7107240 7126609 7126609 7126609 7126609 7126609 7126646 7126646 7126646','0 0 35764 531673 545484 545487 545487 545487 7089473 7089549 7126646',X'0C0808040408080808040403010B3C670114CE730133294300FF55942225CC');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix0','7804279 630326 13288 5 1 1 1 1 1 1 1','0 7173953 7671119 7675167 7675171 7675171 7675171 7675171 7675171 7675171 7675171','0 1 64320 967583 993386 999414 999414 999414 7632969 7633046 7675171',X'0C080904030308080804040400F2FA4401D16F0183350132DEFE00FF5594009FA501');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix0','7804279 630326 61 1 1 1 1 1 1 1 1','0 7173953 7787172 7787219 7787219 7787219 7787219 7787219 7787219 7787219 7787219','0 1 73272 1068631 1096442 1107608 1107608 1107608 7744925 7745002 7787219',X'0C0809040408080808040304010ABA9100AA4C1F013351DB0DD242008BFFEF');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix0','3876548 3718791 8657 605 605 605 605 605 1 1 1','7804279 7804279 8360485 8364643 8364643 8364643 8364643 8364643 8365247 8365247 8365247','1 2 75785 1096159 1124446 1135923 1135923 1135923 8321766 8321843 8365247',X'0C09080303080808080403031AD3690DC36E01328E2F021FFC3D9128');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix0','3876548 3718791 33421 57 26 26 26 26 1 1 1','7804279 7804279 8873934 8891008 8891039 8891039 8891039 8891039 8891064 8891064 8891064','1 2 76834 1110063 1138607 1150084 1150084 1150084 8846567 8846644 8891064',X'0C09080303020808080404043377630CE166232801332A1800FF559400836DFB');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix0','3876548 3718791 2182 94 94 94 94 94 1 1 1','7804279 7804279 9083187 9085006 9085006 9085006 9085006 9085006 9085089 9085089 9085089','1 2 77227 1115805 1144438 1155915 1155915 1155915 9040239 9040316 9085089',X'0C09080303080808080403033AC92C04AF670132B5FC021FFC38DBD0');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix0','3876548 3718791 6008 277 277 277 277 277 1 1 1','7804279 7804279 9124662 9124662 9124662 9124662 9124662 9124662 9124938 9124938 9124938','1 2 77300 1116652 1145304 1156781 1156781 1156781 9080000 9080077 9124938',X'0C09080303080808080404033C1C5C01B49901328DDA00F024883D6052');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix0','3876548 3718791 6023 50 50 50 50 50 1 1 1','7804279 7804279 9393480 9395815 9395815 9395815 9395815 9395815 9395864 9395864 9395864','1 2 77893 1123924 1152663 1164140 1164140 1164140 9350459 9350536 9395864',X'0C09080303080808080403034CDD9A01C30D013290877E1C2303CC11');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix0','3876548 3718791 79 6 6 6 6 6 1 1 1','7804279 7804279 10382946 10382956 10382956 10382956 10382956 10382956 10382959 10382959 10382959','1 2 80421 1154920 1184197 1195674 1195674 1195674 10336219 10336296 10382959',X'0C090804030808080804030400E9A10A02A47201332C6C0CC31600ABCD60');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix0','3876548 3718791 8251 280 280 280 280 280 1 1 1','7804279 7804279 11067468 11072690 11072690 11072690 11072690 11072690 11072969 11072969 11072969','1 2 83449 1186373 1216159 1227636 1227636 1227636 11025858 11025935 11072969',X'0C090804040808080804040300FFA4A70089DBDD0132B5FF008A66AD6AE2B8');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix0','3876548 3718791 44772 58 58 58 58 58 1 1 1','7804279 7804279 11268036 11269261 11269261 11269261 11269261 11269261 11269318 11269318 11269318','1 2 85052 1199706 1229712 1241189 1241189 1241189 11222207 11222284 11269318',X'0C0908040308080808040404010B0A5C018ACD0133294300FF559400B0E291');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix0','3876548 3718791 53775 37 19 19 19 19 1 1 1','7804279 7804279 11330929 11355027 11355045 11355045 11355045 11355045 11355063 11355063 11355063','1 2 85255 1206165 1236304 1247781 1247781 1247781 11307952 11308029 11355063',X'0C0908040302080808040403010BFA81026C24232801332B2E00FF55941F8BB5');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix0','3876548 3718791 39430 39 39 39 39 39 1 1 1','7804279 7804279 11458789 11476757 11476757 11476757 11476757 11476757 11476795 11476795 11476795','1 2 86422 1219089 1249476 1260953 1260953 1260953 11429684 11429761 11476795',X'0C09080403080808080404030113B99602F6AF01332B2E00FF55941F8A54');
+  INSERT INTO sqlite_stat4 VALUES('tx1','ix0','3876548 157757 5317 1 1 1 1 1 1 1 1','7804279 11523070 11652844 11658160 11658160 11658160 11658160 11658160 11658160 11658160 11658160','1 3 97969 1358780 1391643 1403122 1403122 1403122 11611049 11611126 11658160',X'0C0909040402080808040403010BFA8102594CCB2328013351E800FF55945B0F5D');
+  ANALYZE sqlite_master;
+} {}
+
+# Ensure that the query planner implements the GROUP BY using a separate sort
+#
+do_execsql_test whereJ-1.4 {
+  EXPLAIN QUERY PLAN
+  SELECT aid, sid, MAX(edate) edate
+    FROM tx1
+   WHERE cid = 115790
+     AND sid = 9100
+     AND edate <= 20140430 AND edate >= 20120429
+   GROUP BY aid;
+} {/B-TREE/}
+
+############################################################################
+# Ensure that the sorting cost does not swamp the loop costs and cause
+# distinctions between individual loop costs to get lost, and hence for
+# sub-optimal loops to be chosen.
+#
+do_execsql_test whereJ-2.1 {
+  CREATE TABLE tab(
+    id INTEGER PRIMARY KEY,
+    minChild INTEGER REFERENCES t1,
+    maxChild INTEGER REFERENCES t1,
+    x INTEGER
+  );
+  EXPLAIN QUERY PLAN
+  SELECT t4.x
+    FROM tab AS t0, tab AS t1, tab AS t2, tab AS t3, tab AS t4
+   WHERE t0.id=0
+     AND t1.id BETWEEN t0.minChild AND t0.maxChild
+     AND t2.id BETWEEN t1.minChild AND t1.maxChild
+     AND t3.id BETWEEN t2.minChild AND t2.maxChild
+     AND t4.id BETWEEN t3.minChild AND t3.maxChild
+  ORDER BY t4.x;
+} {~/SCAN/}
+do_execsql_test whereJ-2.2 {
+  EXPLAIN QUERY PLAN
+  SELECT t4.x
+    FROM tab AS t0a, tab AS t0b,
+         tab AS t1a, tab AS t1b,
+         tab AS t2a, tab AS t2b,
+         tab AS t3a, tab AS t3b,
+         tab AS t4
+   WHERE 1
+     AND t0a.id=1
+     AND t1a.id BETWEEN t0a.minChild AND t0a.maxChild
+     AND t2a.id BETWEEN t1a.minChild AND t1a.maxChild
+     AND t3a.id BETWEEN t2a.minChild AND t2a.maxChild
+     AND t0b.id=2
+     AND t1b.id BETWEEN t0b.minChild AND t0b.maxChild
+     AND t2b.id BETWEEN t1b.minChild AND t1b.maxChild
+     AND t3b.id BETWEEN t2b.minChild AND t2b.maxChild
+     AND t4.id BETWEEN t3a.minChild AND t3b.maxChild
+  ORDER BY t4.x;
+} {~/SCAN/}
+
+############################################################################
+
+# Create and populate table.
+do_execsql_test 3.1 { CREATE TABLE t1(a, b, c) }
+for {set i 0} {$i < 32} {incr i 2} {
+  for {set x 0} {$x < 100} {incr x} {
+    execsql { INSERT INTO t1 VALUES($i, $x, $c) }
+    incr c
+  }
+  execsql { INSERT INTO t1 VALUES($i+1, 5, $c) }
+  incr c
+}
+
+do_execsql_test 3.2 {
+  SELECT a, count(*) FROM t1 GROUP BY a HAVING a < 8;
+} {
+  0 100 1 1 2 100 3 1 4 100 5 1 6 100 7 1
+}
+
+do_execsql_test 3.3 {
+  CREATE INDEX idx_ab ON t1(a, b);
+  CREATE INDEX idx_c ON t1(c);
+  ANALYZE;
+} {}
+
+# This one should use index "idx_c".
+do_eqp_test 3.4 {
+  SELECT * FROM t1 WHERE 
+    a = 4 AND b BETWEEN 20 AND 80           -- Matches 80 rows
+      AND
+    c BETWEEN 150 AND 160                   -- Matches 10 rows
+} {SEARCH t1 USING INDEX idx_c (c>? AND c<?)}
+
+# This one should use index "idx_ab".
+do_eqp_test 3.5 {
+  SELECT * FROM t1 WHERE 
+    a = 5 AND b BETWEEN 20 AND 80           -- Matches 1 row
+      AND
+    c BETWEEN 150 AND 160                   -- Matches 10 rows
+} {SEARCH t1 USING INDEX idx_ab (a=? AND b>? AND b<?)}
+
+###########################################################################################
+
+# Reset the database and setup for a test case derived from actual SQLite users
+#
+db close
+sqlite3 db test.db
+do_execsql_test 4.1 {
+  CREATE TABLE le(
+    le_id largeint,
+    xid char(31),
+    type smallint,
+    name char(255) DEFAULT '',
+    mtime largeint DEFAULT 0,
+    muuid int DEFAULT 0
+  );
+  CREATE TABLE cx(
+    cx_id largeint,
+    code char(31),
+    type smallint,
+    name char(31),
+    description varchar,
+    role smallint,
+    mtime largeint DEFAULT 0,
+    muuid int DEFAULT 0,
+    le_id largeint DEFAULT 0,
+    imco smallint DEFAULT 0
+  );
+  CREATE TABLE px(
+    px_id largeint,
+    cx_id largeint,
+    px_tid largeint,
+    name char(31),
+    description varchar DEFAULT '',
+    ia smallint,
+    sl smallint,
+    le_id largeint DEFAULT 0,
+    mtime largeint DEFAULT 0,
+    muuid int DEFAULT 0
+  );
+  CREATE INDEX le_id on le (le_id);
+  CREATE INDEX c_id on cx (cx_id);
+  CREATE INDEX c_leid on cx (le_id);
+  CREATE INDEX p_id on px (px_id);
+  CREATE INDEX p_cid0 on px (cx_id);
+  CREATE INDEX p_pt on px (px_tid);
+  CREATE INDEX p_leid on px (le_id);
+} {}
+do_execsql_test 4.2 {
+  ANALYZE sqlite_master;
+  INSERT INTO sqlite_stat1 VALUES('le','le_id','1979 1');
+  INSERT INTO sqlite_stat1 VALUES('cx','c_leid','852 171');
+  INSERT INTO sqlite_stat1 VALUES('cx','c_id','852 1');
+  INSERT INTO sqlite_stat1 VALUES('px','p_leid','114443 63');
+  INSERT INTO sqlite_stat1 VALUES('px','p_pt','114443 22889');
+  INSERT INTO sqlite_stat1 VALUES('px','p_cid0','114443 181');
+  INSERT INTO sqlite_stat1 VALUES('px','p_id','114443 1');
+  INSERT INTO sqlite_stat4 VALUES('le','le_id','1 1','162 162','162 162',X'030202013903fb');
+  INSERT INTO sqlite_stat4 VALUES('le','le_id','1 1','208 208','208 208',X'0302020253012d');
+  INSERT INTO sqlite_stat4 VALUES('le','le_id','1 1','219 219','219 219',X'030202025e0131');
+  INSERT INTO sqlite_stat4 VALUES('le','le_id','1 1','248 248','248 248',X'030202027b014e');
+  INSERT INTO sqlite_stat4 VALUES('le','le_id','1 1','265 265','265 265',X'030202028c015f');
+  INSERT INTO sqlite_stat4 VALUES('le','le_id','1 1','358 358','358 358',X'03020202e901bc');
+  INSERT INTO sqlite_stat4 VALUES('le','le_id','1 1','439 439','439 439',X'030202033a020d');
+  INSERT INTO sqlite_stat4 VALUES('le','le_id','1 1','657 657','657 657',X'030202041402b4');
+  INSERT INTO sqlite_stat4 VALUES('le','le_id','1 1','659 659','659 659',X'030202041602b6');
+  INSERT INTO sqlite_stat4 VALUES('le','le_id','1 1','681 681','681 681',X'030202042c02cc');
+  INSERT INTO sqlite_stat4 VALUES('le','le_id','1 1','831 831','831 831',X'03020204c20482');
+  INSERT INTO sqlite_stat4 VALUES('le','le_id','1 1','852 852','852 852',X'03020204d70497');
+  INSERT INTO sqlite_stat4 VALUES('le','le_id','1 1','870 870','870 870',X'03020204e904a9');
+  INSERT INTO sqlite_stat4 VALUES('le','le_id','1 1','879 879','879 879',X'03020204f204b2');
+  INSERT INTO sqlite_stat4 VALUES('le','le_id','1 1','1099 1099','1099 1099',X'03020205ce058e');
+  INSERT INTO sqlite_stat4 VALUES('le','le_id','1 1','1273 1273','1273 1273',X'030202067c05a9');
+  INSERT INTO sqlite_stat4 VALUES('le','le_id','1 1','1319 1319','1319 1319',X'03020206e30730');
+  INSERT INTO sqlite_stat4 VALUES('le','le_id','1 1','1330 1330','1330 1330',X'0302020700035b');
+  INSERT INTO sqlite_stat4 VALUES('le','le_id','1 1','1539 1539','1539 1539',X'03020207d105d8');
+  INSERT INTO sqlite_stat4 VALUES('le','le_id','1 1','1603 1603','1603 1603',X'03020208390780');
+  INSERT INTO sqlite_stat4 VALUES('le','le_id','1 1','1759 1759','1759 1759',X'030202092f0618');
+  INSERT INTO sqlite_stat4 VALUES('le','le_id','1 1','1843 1843','1843 1843',X'03020209880650');
+  INSERT INTO sqlite_stat4 VALUES('le','le_id','1 1','1915 1915','1915 1915',X'03020209d0068b');
+  INSERT INTO sqlite_stat4 VALUES('le','le_id','1 1','1927 1927','1927 1927',X'03020209dc0697');
+  INSERT INTO sqlite_stat4 VALUES('cx','c_leid','846 1','0 94','0 94',X'0308015f');
+  INSERT INTO sqlite_stat4 VALUES('cx','c_leid','846 1','0 189','0 189',X'03080200be');
+  INSERT INTO sqlite_stat4 VALUES('cx','c_leid','846 1','0 284','0 284',X'0308020120');
+  INSERT INTO sqlite_stat4 VALUES('cx','c_leid','846 1','0 379','0 379',X'030802017f');
+  INSERT INTO sqlite_stat4 VALUES('cx','c_leid','846 1','0 474','0 474',X'03080201de');
+  INSERT INTO sqlite_stat4 VALUES('cx','c_leid','846 1','0 569','0 569',X'030802023d');
+  INSERT INTO sqlite_stat4 VALUES('cx','c_leid','846 1','0 664','0 664',X'030802029f');
+  INSERT INTO sqlite_stat4 VALUES('cx','c_leid','846 1','0 759','0 759',X'03080202fe');
+  INSERT INTO sqlite_stat4 VALUES('cx','c_leid','3 1','846 847','1 847',X'0301024500e6');
+  INSERT INTO sqlite_stat4 VALUES('cx','c_leid','1 1','849 849','2 849',X'03010246027e');
+  INSERT INTO sqlite_stat4 VALUES('cx','c_leid','1 1','850 850','3 850',X'0301024700c9');
+  INSERT INTO sqlite_stat4 VALUES('cx','c_leid','1 1','851 851','4 851',X'03010248027f');
+  INSERT INTO sqlite_stat4 VALUES('cx','c_id','1 1','94 94','94 94',X'03020200b801a8');
+  INSERT INTO sqlite_stat4 VALUES('cx','c_id','1 1','113 113','113 113',X'03020200d101ad');
+  INSERT INTO sqlite_stat4 VALUES('cx','c_id','1 1','171 171','171 171',X'030201011d2a');
+  INSERT INTO sqlite_stat4 VALUES('cx','c_id','1 1','177 177','177 177',X'030202012600f2');
+  INSERT INTO sqlite_stat4 VALUES('cx','c_id','1 1','189 189','189 189',X'030202013501c8');
+  INSERT INTO sqlite_stat4 VALUES('cx','c_id','1 1','206 206','206 206',X'030201014f2d');
+  INSERT INTO sqlite_stat4 VALUES('cx','c_id','1 1','231 231','231 231',X'030202016d00fc');
+  INSERT INTO sqlite_stat4 VALUES('cx','c_id','1 1','284 284','284 284',X'03020201b702d0');
+  INSERT INTO sqlite_stat4 VALUES('cx','c_id','1 1','291 291','291 291',X'03020101c042');
+  INSERT INTO sqlite_stat4 VALUES('cx','c_id','1 1','311 311','311 311',X'03020201d801e7');
+  INSERT INTO sqlite_stat4 VALUES('cx','c_id','1 1','339 339','339 339',X'03020101f74b');
+  INSERT INTO sqlite_stat4 VALUES('cx','c_id','1 1','347 347','347 347',X'03020202030118');
+  INSERT INTO sqlite_stat4 VALUES('cx','c_id','1 1','379 379','379 379',X'030202022f01fa');
+  INSERT INTO sqlite_stat4 VALUES('cx','c_id','1 1','393 393','393 393',X'030201023f55');
+  INSERT INTO sqlite_stat4 VALUES('cx','c_id','1 1','407 407','407 407',X'03020202500201');
+  INSERT INTO sqlite_stat4 VALUES('cx','c_id','1 1','413 413','413 413',X'03020102565a');
+  INSERT INTO sqlite_stat4 VALUES('cx','c_id','1 1','468 468','468 468',X'030201029468');
+  INSERT INTO sqlite_stat4 VALUES('cx','c_id','1 1','474 474','474 474',X'030202029a0211');
+  INSERT INTO sqlite_stat4 VALUES('cx','c_id','1 1','517 517','517 517',X'03020102cc76');
+  INSERT INTO sqlite_stat4 VALUES('cx','c_id','1 1','548 548','548 548',X'03020202f00223');
+  INSERT INTO sqlite_stat4 VALUES('cx','c_id','1 1','569 569','569 569',X'03020203090087');
+  INSERT INTO sqlite_stat4 VALUES('cx','c_id','1 1','664 664','664 664',X'03020203740163');
+  INSERT INTO sqlite_stat4 VALUES('cx','c_id','1 1','759 759','759 759',X'03020203e800b3');
+  INSERT INTO sqlite_stat4 VALUES('cx','c_id','1 1','803 803','803 803',X'030202041b026f');
+  INSERT INTO sqlite_stat4 VALUES('px','p_leid','110728 1','0 12715','0 12715',X'030802345b');
+  INSERT INTO sqlite_stat4 VALUES('px','p_leid','110728 1','0 25431','0 25431',X'0308026718');
+  INSERT INTO sqlite_stat4 VALUES('px','p_leid','110728 1','0 38147','0 38147',X'030803009a5c');
+  INSERT INTO sqlite_stat4 VALUES('px','p_leid','110728 1','0 50863','0 50863',X'03080300cdbe');
+  INSERT INTO sqlite_stat4 VALUES('px','p_leid','110728 1','0 63579','0 63579',X'0308030100e8');
+  INSERT INTO sqlite_stat4 VALUES('px','p_leid','110728 1','0 76295','0 76295',X'03080301351d');
+  INSERT INTO sqlite_stat4 VALUES('px','p_leid','110728 1','0 89011','0 89011',X'03080301674c');
+  INSERT INTO sqlite_stat4 VALUES('px','p_leid','110728 1','0 101727','0 101727',X'030803019b99');
+  INSERT INTO sqlite_stat4 VALUES('px','p_leid','28 1','110824 110843','16 110843',X'0301037a0107f1');
+  INSERT INTO sqlite_stat4 VALUES('px','p_leid','53 1','110873 110875','25 110875',X'0302020095275a');
+  INSERT INTO sqlite_stat4 VALUES('px','p_leid','32 1','110927 110936','27 110936',X'030203009b009b4a');
+  INSERT INTO sqlite_stat4 VALUES('px','p_leid','51 1','110980 111017','30 111017',X'03020300a4016c00');
+  INSERT INTO sqlite_stat4 VALUES('px','p_leid','67 1','111047 111059','38 111059',X'03020200af2611');
+  INSERT INTO sqlite_stat4 VALUES('px','p_leid','60 1','111136 111156','43 111156',X'03020300bc009aeb');
+  INSERT INTO sqlite_stat4 VALUES('px','p_leid','42 1','111222 111239','59 111239',X'03020300d200b17b');
+  INSERT INTO sqlite_stat4 VALUES('px','p_leid','36 1','111264 111266','60 111266',X'03020200d426d6');
+  INSERT INTO sqlite_stat4 VALUES('px','p_leid','27 1','111733 111757','159 111757',X'030203014e017e1b');
+  INSERT INTO sqlite_stat4 VALUES('px','p_leid','36 1','111760 111773','160 111773',X'030203014f00a2b9');
+  INSERT INTO sqlite_stat4 VALUES('px','p_leid','29 1','111822 111833','167 111833',X'0302030176009c22');
+  INSERT INTO sqlite_stat4 VALUES('px','p_leid','75 1','113031 113095','1190 113095',X'030203068501912c');
+  INSERT INTO sqlite_stat4 VALUES('px','p_leid','132 1','113230 113263','1252 113263',X'0302030711009ee6');
+  INSERT INTO sqlite_stat4 VALUES('px','p_leid','110 1','113851 113918','1572 113918',X'03020308e9011ca2');
+  INSERT INTO sqlite_stat4 VALUES('px','p_leid','78 1','114212 114217','1791 114217',X'03020209e13b24');
+  INSERT INTO sqlite_stat4 VALUES('px','p_leid','112 1','114303 114351','1799 114351',X'03020309ea0128f2');
+  INSERT INTO sqlite_stat4 VALUES('px','p_pt','89824 1','0 12715','0 12715',X'030802477e');
+  INSERT INTO sqlite_stat4 VALUES('px','p_pt','89824 1','0 25431','0 25431',X'0308027c20');
+  INSERT INTO sqlite_stat4 VALUES('px','p_pt','89824 1','0 38147','0 38147',X'03080300c211');
+  INSERT INTO sqlite_stat4 VALUES('px','p_pt','89824 1','0 50863','0 50863',X'03080300fbe5');
+  INSERT INTO sqlite_stat4 VALUES('px','p_pt','89824 1','0 63579','0 63579',X'0308030140ff');
+  INSERT INTO sqlite_stat4 VALUES('px','p_pt','89824 1','0 76295','0 76295',X'03080301792d');
+  INSERT INTO sqlite_stat4 VALUES('px','p_pt','89824 1','0 89011','0 89011',X'03080301bb68');
+  INSERT INTO sqlite_stat4 VALUES('px','p_pt','24217 1','89824 101727','1 101727',X'03090300da12');
+  INSERT INTO sqlite_stat4 VALUES('px','p_pt','154 1','114041 114154','2 114154',X'0301030200e5e9');
+  INSERT INTO sqlite_stat4 VALUES('px','p_pt','198 1','114195 114351','3 114351',X'03010303015cb1');
+  INSERT INTO sqlite_stat4 VALUES('px','p_pt','50 1','114393 114441','4 114441',X'0301030401b2ef');
+  INSERT INTO sqlite_stat4 VALUES('px','p_cid0','3867 1','3 3736','2 3736',X'03010337015c6a');
+  INSERT INTO sqlite_stat4 VALUES('px','p_cid0','4194 1','4177 8209','5 8209',X'0301033b015075');
+  INSERT INTO sqlite_stat4 VALUES('px','p_cid0','4335 1','8371 11129','6 11129',X'0301033d0156fc');
+  INSERT INTO sqlite_stat4 VALUES('px','p_cid0','1740 1','12706 12715','7 12715',X'0301023e34b9');
+  INSERT INTO sqlite_stat4 VALUES('px','p_cid0','1680 1','14446 15487','8 15487',X'0301033f011694');
+  INSERT INTO sqlite_stat4 VALUES('px','p_cid0','7163 1','20116 25431','32 25431',X'03020300a400ed26');
+  INSERT INTO sqlite_stat4 VALUES('px','p_cid0','1525 1','29100 29302','42 29302',X'03020200bb00d1');
+  INSERT INTO sqlite_stat4 VALUES('px','p_cid0','3703 1','30655 33323','45 33323',X'03020300be013fa5');
+  INSERT INTO sqlite_stat4 VALUES('px','p_cid0','2612 1','37767 38147','61 38147',X'03020200e32828');
+  INSERT INTO sqlite_stat4 VALUES('px','p_cid0','1882 1','40545 41584','63 41584',X'03020300ea01a35a');
+  INSERT INTO sqlite_stat4 VALUES('px','p_cid0','6984 1','44110 50863','73 50863',X'0302030102017467');
+  INSERT INTO sqlite_stat4 VALUES('px','p_cid0','1728 1','51230 51680','75 51680',X'030203010400b3e0');
+  INSERT INTO sqlite_stat4 VALUES('px','p_cid0','2805 1','55491 57936','95 57936',X'030203014101a004');
+  INSERT INTO sqlite_stat4 VALUES('px','p_cid0','2837 1','58934 59506','103 59506',X'030203015900a283');
+  INSERT INTO sqlite_stat4 VALUES('px','p_cid0','94 1','63492 63579','137 63579',X'0302030191016319');
+  INSERT INTO sqlite_stat4 VALUES('px','p_cid0','3573 1','63591 64497','140 64497',X'030203019c00822e');
+  INSERT INTO sqlite_stat4 VALUES('px','p_cid0','5037 1','70917 73033','160 73033',X'03020301c70091d9');
+  INSERT INTO sqlite_stat4 VALUES('px','p_cid0','1940 1','75954 76295','161 76295',X'03020201c817f1');
+  INSERT INTO sqlite_stat4 VALUES('px','p_cid0','1927 1','83926 84371','209 84371',X'03020202114295');
+  INSERT INTO sqlite_stat4 VALUES('px','p_cid0','1522 1','86601 88117','213 88117',X'030203021b01b7b5');
+  INSERT INTO sqlite_stat4 VALUES('px','p_cid0','210 1','88906 89011','226 89011',X'030203022800dbbb');
+  INSERT INTO sqlite_stat4 VALUES('px','p_cid0','6165 1','92125 98066','258 98066',X'030203024d0189ac');
+  INSERT INTO sqlite_stat4 VALUES('px','p_cid0','2900 1','100721 101727','293 101727',X'030203027500cf39');
+  INSERT INTO sqlite_stat4 VALUES('px','p_cid0','1501 1','110012 110154','503 110154',X'0302020380493a');
+  INSERT INTO sqlite_stat4 VALUES('px','p_id','1 1','11129 11129','11129 11129',X'03030300d84e014d51');
+  INSERT INTO sqlite_stat4 VALUES('px','p_id','1 1','12715 12715','12715 12715',X'03030200de816f51');
+  INSERT INTO sqlite_stat4 VALUES('px','p_id','1 1','13030 13030','13030 13030',X'03030200e05b6fc4');
+  INSERT INTO sqlite_stat4 VALUES('px','p_id','1 1','25431 25431','25431 25431',X'0303030123df00efb0');
+  INSERT INTO sqlite_stat4 VALUES('px','p_id','1 1','29302 29302','29302 29302',X'030302013a2812c7');
+  INSERT INTO sqlite_stat4 VALUES('px','p_id','1 1','35463 35463','35463 35463',X'03030301666e00f866');
+  INSERT INTO sqlite_stat4 VALUES('px','p_id','1 1','38147 38147','38147 38147',X'030302017a391b74');
+  INSERT INTO sqlite_stat4 VALUES('px','p_id','1 1','38525 38525','38525 38525',X'030303017c6e00fb58');
+  INSERT INTO sqlite_stat4 VALUES('px','p_id','1 1','50863 50863','50863 50863',X'03030201b68724dd');
+  INSERT INTO sqlite_stat4 VALUES('px','p_id','1 1','58461 58461','58461 58461',X'03030201d95b2e1e');
+  INSERT INTO sqlite_stat4 VALUES('px','p_id','1 1','59506 59506','59506 59506',X'03030301dd7000a0fb');
+  INSERT INTO sqlite_stat4 VALUES('px','p_id','1 1','63468 63468','63468 63468',X'03030301ecea011405');
+  INSERT INTO sqlite_stat4 VALUES('px','p_id','1 1','63579 63579','63579 63579',X'03030201ed5932d5');
+  INSERT INTO sqlite_stat4 VALUES('px','p_id','1 1','64497 64497','64497 64497',X'03030301f0ef00a680');
+  INSERT INTO sqlite_stat4 VALUES('px','p_id','1 1','73033 73033','73033 73033',X'0303030225b90190e5');
+  INSERT INTO sqlite_stat4 VALUES('px','p_id','1 1','75650 75650','75650 75650',X'030303023a19019362');
+  INSERT INTO sqlite_stat4 VALUES('px','p_id','1 1','76295 76295','76295 76295',X'030303023e9801940c');
+  INSERT INTO sqlite_stat4 VALUES('px','p_id','1 1','79152 79152','79152 79152',X'030303024be50196b9');
+  INSERT INTO sqlite_stat4 VALUES('px','p_id','1 1','83249 83249','83249 83249',X'0303030261750123b1');
+  INSERT INTO sqlite_stat4 VALUES('px','p_id','1 1','89011 89011','89011 89011',X'030303027b3900c3af');
+  INSERT INTO sqlite_stat4 VALUES('px','p_id','1 1','98066 98066','98066 98066',X'03030302a76500ce54');
+  INSERT INTO sqlite_stat4 VALUES('px','p_id','1 1','101590 101590','101590 101590',X'03030302b63d00d3b5');
+  INSERT INTO sqlite_stat4 VALUES('px','p_id','1 1','101727 101727','101727 101727',X'03030202b6f24e9b');
+  INSERT INTO sqlite_stat4 VALUES('px','p_id','1 1','107960 107960','107960 107960',X'03030302d8ce0136ad');
+  ANALYZE sqlite_master;
+} {}
+
+# The following query should do a full table scan of cx in the outer loop.
+# It is not correct to search table px using indx p_pt in the outer loop
+# with cx in the middle loop.  Test case from Bloomberg on 2014-09-05.
+#
+do_execsql_test 4.2 {
+  EXPLAIN QUERY PLAN
+  SELECT
+     px.name,
+     px.description
+  FROM
+     le,
+     cx,
+     px
+  WHERE
+     cx.code = '2990'
+     AND cx.type=2
+     AND px.cx_id = cx.cx_id
+     AND px.px_tid = 0
+     AND px.le_id = le.le_id;
+} {/.*SCAN cx.*SEARCH px.*SEARCH le.*/}
+
+
+# The following test is derived from a performance problem reported from
+# the field.  Notice the multiple indexes with the same initial tables,
+# and the unusual WHERE clause terms.
+#
+do_test 5.1 {
+  set res [db eval {
+    DROP TABLE IF EXISTS t1;
+    CREATE TABLE t1(a,b,c,d,e,f,g,h);
+    CREATE INDEX t1abc ON t1(a,b,c);
+    CREATE INDEX t1abe ON t1(a,b,e);
+    CREATE INDEX t1abf ON t1(a,b,f);
+    ANALYZE;
+    DROP TABLE IF EXISTS sqlite_stat4;
+    DROP TABLE IF EXISTS sqlite_stat3;
+    DELETE FROM sqlite_stat1;
+    INSERT INTO sqlite_stat1(tbl,idx,stat)
+      VALUES('t1','t1abc','2000000 8000 1600 800'),
+            ('t1','t1abe','2000000 8000 1600 150'),
+            ('t1','t1abf','2000000 8000 1600 150');
+    ANALYZE sqlite_master;
+  
+    EXPLAIN QUERY PLAN
+    SELECT * FROM t1
+     WHERE (a=1 OR a=2)
+       AND (b=3 OR b=4)
+       AND (d>=5 AND d<=5)
+       AND ((e>=7 AND e<=7) OR (f>=8 AND f<=8))
+       AND g>0;
+  }]
+} {~/ANY/}
+do_test 5.2 {set res} {/USING INDEX t1abe/}
+do_test 5.3 {set res} {/USING INDEX t1abf/}
+
+
+
+finish_test
diff --git a/test/whereK.test b/test/whereK.test
new file mode 100644
index 0000000000000000000000000000000000000000..060d470ff96cada721a0adeee29dbf4d09f0f8f2
--- /dev/null
+++ b/test/whereK.test
@@ -0,0 +1,72 @@
+# 2015-03-16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing OR expressions where terms can be
+# factored from either side of the OR and combined into a single new
+# AND term that is beneficial to the search.  Examples:
+#
+#      (x>A OR x=A)              -->    ... AND (x>=A)
+#      (x>A OR (x=A AND y>=B)    -->    ... AND (x>=A)
+#
+
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix whereK
+
+do_execsql_test 1.1 {
+  CREATE TABLE t1(a,b,c);
+  WITH RECURSIVE c(x) AS (VALUES(0) UNION ALL SELECT x+1 FROM c WHERE x<99)
+    INSERT INTO t1(a,b,c) SELECT x, x/10, x%10 FROM c;
+  CREATE INDEX t1bc ON t1(b,c);
+  SELECT a FROM t1 WHERE b>9 OR b=9 ORDER BY +a;
+} {90 91 92 93 94 95 96 97 98 99}
+do_execsql_test 1.1eqp {
+  EXPLAIN QUERY PLAN
+  SELECT a FROM t1 WHERE b>9 OR b=9 ORDER BY +a;
+} {/SEARCH t1 USING INDEX t1bc/}
+
+do_execsql_test 1.2 {
+  SELECT a FROM t1 WHERE b>8 OR (b=8 AND c>7) ORDER BY +a;
+} {88 89 90 91 92 93 94 95 96 97 98 99}
+do_execsql_test 1.2eqp {
+  EXPLAIN QUERY PLAN
+  SELECT a FROM t1 WHERE b>8 OR (b=8 AND c>7) ORDER BY +a;
+} {/SEARCH t1 USING INDEX t1bc/}
+
+do_execsql_test 1.3 {
+  SELECT a FROM t1 WHERE (b=8 AND c>7) OR b>8 ORDER BY +a;
+} {88 89 90 91 92 93 94 95 96 97 98 99}
+do_execsql_test 1.3eqp {
+  EXPLAIN QUERY PLAN
+  SELECT a FROM t1 WHERE (b=8 AND c>7) OR b>8 ORDER BY +a;
+} {/SEARCH t1 USING INDEX t1bc/}
+
+do_execsql_test 1.4 {
+  SELECT a FROM t1 WHERE (b=8 AND c>7) OR 8<b ORDER BY +a;
+} {88 89 90 91 92 93 94 95 96 97 98 99}
+do_execsql_test 1.4eqp {
+  EXPLAIN QUERY PLAN
+  SELECT a FROM t1 WHERE (b=8 AND c>7) OR 8<b ORDER BY +a;
+} {/SEARCH t1 USING INDEX t1bc/}
+
+do_execsql_test 1.5 {
+  SELECT a FROM t1 WHERE (b=8 AND c>7) OR (b>8 AND c NOT IN (4,5,6))
+   ORDER BY +a;
+} {88 89 90 91 92 93 97 98 99}
+do_execsql_test 1.5eqp {
+  EXPLAIN QUERY PLAN
+  SELECT a FROM t1 WHERE (b=8 AND c>7) OR (b>8 AND c NOT IN (4,5,6))
+   ORDER BY +a;
+} {/SEARCH t1 USING INDEX t1bc/}
+
+finish_test
diff --git a/test/whereL.test b/test/whereL.test
new file mode 100644
index 0000000000000000000000000000000000000000..2e9ae219e1013944a73e21cfd9cc73aa38bcc16e
--- /dev/null
+++ b/test/whereL.test
@@ -0,0 +1,257 @@
+# 2018-07-26
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the WHERE-clause constant propagation
+# optimization.
+#
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix whereL
+
+do_execsql_test 100 {
+  CREATE TABLE t1(a INT PRIMARY KEY, b, c, d, e);
+  CREATE TABLE t2(a INT PRIMARY KEY, f, g, h, i);
+  CREATE TABLE t3(a INT PRIMARY KEY, j, k, l, m);
+  CREATE VIEW v4 AS SELECT * FROM t2 UNION ALL SELECT * FROM t3;
+}
+do_eqp_test 110 {
+  SELECT * FROM t1, v4 WHERE t1.a=?1 AND v4.a=t1.a;
+} {
+  QUERY PLAN
+  `--COMPOUND QUERY
+     |--LEFT-MOST SUBQUERY
+     |  |--SEARCH t1 USING INDEX sqlite_autoindex_t1_1 (a=?)
+     |  `--SEARCH t2 USING INDEX sqlite_autoindex_t2_1 (a=?)
+     `--UNION ALL
+        |--SEARCH t1 USING INDEX sqlite_autoindex_t1_1 (a=?)
+        `--SEARCH t3 USING INDEX sqlite_autoindex_t3_1 (a=?)
+}
+
+# The scan of the t1 table goes first since that enables the ORDER BY
+# sort to be omitted.  This would not be possible without constant
+# propagation because without it the t1 table would depend on t3.
+#
+do_eqp_test 120 {
+  SELECT * FROM t1, t2, t3
+   WHERE t1.a=t2.a AND t2.a=t3.j AND t3.j=5
+  ORDER BY t1.a;
+} {
+  QUERY PLAN
+  |--SEARCH t1 USING INDEX sqlite_autoindex_t1_1 (a=?)
+  |--SEARCH t2 USING INDEX sqlite_autoindex_t2_1 (a=?)
+  `--SCAN t3
+}
+do_eqp_test 121 {
+  SELECT * FROM t1, t2, t3
+   WHERE t1.a=t2.a AND t2.a=t3.j AND t3.j=abs(5)
+  ORDER BY t1.a;
+} {
+  QUERY PLAN
+  |--SEARCH t1 USING INDEX sqlite_autoindex_t1_1 (a=?)
+  |--SEARCH t2 USING INDEX sqlite_autoindex_t2_1 (a=?)
+  `--SCAN t3
+}
+
+# The sqlite3ExprIsConstant() routine does not believe that
+# the expression "coalesce(5,random())" is constant.  So the
+# optimization does not apply in this case.
+# 
+sqlite3_create_function db
+do_eqp_test 122 {
+  SELECT * FROM t1, t2, t3
+   WHERE t1.a=t2.a AND t2.a=t3.j AND t3.j=coalesce(5,random())
+  ORDER BY t1.a;
+} {
+  QUERY PLAN
+  |--SCAN t3
+  |--SEARCH t1 USING INDEX sqlite_autoindex_t1_1 (a=?)
+  |--SEARCH t2 USING INDEX sqlite_autoindex_t2_1 (a=?)
+  `--USE TEMP B-TREE FOR ORDER BY
+}
+
+# Constant propagation in the face of collating sequences:
+#
+do_execsql_test 200 {
+  CREATE TABLE c3(x COLLATE binary, y COLLATE nocase, z COLLATE binary);
+  CREATE INDEX c3x ON c3(x);
+  INSERT INTO c3 VALUES('ABC', 'ABC', 'abc');
+  SELECT * FROM c3 WHERE x=y AND y=z AND z='abc';
+} {ABC ABC abc}
+
+# If the constants are blindly propagated, as shown in the following
+# query, the wrong answer results:
+#
+do_execsql_test 201 {
+  SELECT * FROM c3 WHERE x='abc' AND y='abc' AND z='abc';
+} {}
+
+# Constant propagation caused an incorrect answer in the following
+# query.  (Reported by Bentley system on 2018-08-09.)
+#
+do_execsql_test 300 {
+  CREATE TABLE A(id INTEGER PRIMARY KEY, label TEXT);
+  CREATE TABLE B(id INTEGER PRIMARY KEY, label TEXT, Aid INTEGER);
+  CREATE TABLE C(
+    id INTEGER PRIMARY KEY,
+    xx INTEGER NOT NULL,
+    yy INTEGER,
+    zz INTEGER
+  );
+  CREATE UNIQUE INDEX x2 ON C(yy);
+  CREATE UNIQUE INDEX x4 ON C(yy, zz);
+  INSERT INTO A(id) VALUES(1);
+  INSERT INTO B(id) VALUES(2);
+  INSERT INTO C(id,xx,yy,zz) VALUES(99,50,1,2);
+  SELECT 1
+    FROM A,
+         (SELECT id,xx,yy,zz FROM C) subq,
+         B
+   WHERE A.id='1'
+     AND A.id=subq.yy
+     AND B.id=subq.zz;
+} {1}  
+do_execsql_test 301 {
+  SELECT 1
+    FROM A,
+         (SELECT id,xx,yy,zz FROM C) subq,
+         B
+   WHERE A.id=1
+     AND A.id=subq.yy
+     AND B.id=subq.zz;
+} {1}  
+do_execsql_test 302 {
+  SELECT 1
+    FROM A,
+         (SELECT id,yy,zz FROM C) subq,
+         B
+   WHERE A.id='1'
+     AND A.id=subq.yy
+     AND B.id=subq.zz;
+} {1}  
+
+# 2018-10-25: Ticket [cf5ed20f]
+# Incorrect join result with duplicate WHERE clause constraint.
+#
+do_execsql_test 400 {
+  CREATE TABLE x(a, b, c);
+  CREATE TABLE y(a, b);
+  INSERT INTO x VALUES (1, 0, 1);
+  INSERT INTO y VALUES (1, 2);
+  SELECT x.a FROM x JOIN y ON x.c = y.a WHERE x.b = 1 AND x.b = 1;
+} {}
+
+# 2020-01-07: ticket 82ac75ba0093e5dc
+# Incorrect join result due to mishandling of affinity in constant
+# propagation.
+#
+reset_db
+do_execsql_test 500 {
+  PRAGMA automatic_index=OFF;
+  CREATE TABLE t0(c0);
+  INSERT INTO t0 VALUES('0');
+  CREATE VIEW v0(c0) AS SELECT CAST(0 AS INT) FROM t0;
+  SELECT 200, * FROM t0, v0 WHERE 0 = t0.c0 AND t0.c0 = v0.c0;
+} {}
+do_execsql_test 510 {
+  SELECT 200, * FROM t0, v0 WHERE t0.c0 = 0 AND t0.c0 = v0.c0;
+} {}
+do_execsql_test 520 {
+  SELECT 200, * FROM t0, v0 WHERE 0 = t0.c0 AND v0.c0 = t0.c0;
+} {}
+do_execsql_test 530 {
+  SELECT 200, * FROM t0, v0 WHERE t0.c0 = 0 AND v0.c0 = t0.c0;
+} {}
+
+# 2020-02-13: ticket 1dcb4d44964846ad
+# A problem introduced while making optimizations on the fixes above.
+#
+reset_db
+do_execsql_test 600 {
+  CREATE TABLE t1(x TEXT);
+  CREATE TABLE t2(y TEXT);
+  INSERT INTO t1 VALUES('good'),('bad');
+  INSERT INTO t2 VALUES('good'),('bad');
+  SELECT * FROM t1 JOIN t2 ON x=y
+   WHERE x='good' AND y='good';
+} {good good}
+
+# 2020-04-24: Another test case for the previous (1dcb4d44964846ad)
+# ticket.  The test case comes from 
+# https://stackoverflow.com/questions/61399253/sqlite3-different-result-in-console-compared-to-python-script/
+# Output verified against postgresql.
+#
+do_execsql_test 610 {
+  CREATE TABLE tableA(
+    ID           int,
+    RunYearMonth int
+  );
+  INSERT INTO tableA VALUES(1,202003),(2,202003),(3,202003),(4,202004),
+    (5,202004),(6,202004),(7,202004),(8,202004);
+  CREATE TABLE tableB (
+    ID           int,
+    RunYearMonth int
+  );
+  INSERT INTO tableB VALUES(1,202004),(2,202004),(3,202004),(4,202004),
+  (5,202004);
+  SELECT *
+   FROM (
+        SELECT *
+        FROM tableA
+        WHERE RunYearMonth = 202004
+    ) AS A
+    INNER JOIN (
+        SELECT *
+        FROM tableB
+        WHERE RunYearMonth = 202004
+    ) AS B
+    ON A.ID = B.ID
+    AND A.RunYearMonth = B.RunYearMonth;
+} {4 202004 4 202004 5 202004 5 202004}
+
+# 2023-02-10 https://sqlite.org/forum/forumpost/0a539c76db3b9e29
+# The original constant propagation implementation caused a performance
+# regression.  Because "abs(v)" was rewritten into "abs(1)" it no longer
+# matches the indexed column and the index is not used.
+# 
+reset_db
+do_execsql_test 700 {
+  CREATE TABLE t1(v INTEGER);
+  WITH RECURSIVE c(x) AS (VALUES(-10) UNION ALL SELECT x+1 FROM c WHERE x<10)
+    INSERT INTO t1(v) SELECT x FROM c;
+  CREATE INDEX idx ON t1( abs(v) );
+  SELECT v FROM t1 WHERE abs(v)=1 and v=1;
+} 1
+do_eqp_test 710 {
+  SELECT v FROM t1 WHERE abs(v)=1 and v=1;
+} {
+  QUERY PLAN
+  `--SEARCH t1 USING INDEX idx (<expr>=?)
+}
+
+# 2024-03-07 https://sqlite.org/forum/forumpost/ecdfc02339
+# A refinement is needed to the enhancements tested by the prior test case
+# to avoid another problem with indexes on constant expressions.
+#
+reset_db
+db null NULL
+do_execsql_test 800 {
+  CREATE TABLE t0(c0, c1);
+  CREATE TABLE t1(c2);
+  CREATE INDEX i0 ON t1(NULL);
+  INSERT INTO t1(c2) VALUES (0.2);
+  CREATE VIEW v0(c3) AS SELECT DISTINCT c2 FROM t1;
+  SELECT * FROM v0 LEFT JOIN t0 ON c3<NULL LEFT JOIN t1 ON 1;
+} {0.2 NULL NULL 0.2}
+do_execsql_test 810 {
+  SELECT * FROM v0 LEFT JOIN t0 ON c3<NULL LEFT JOIN t1 ON 1 WHERE c2/0.1;
+} {0.2 NULL NULL 0.2}
+
+finish_test
diff --git a/test/whereM.test b/test/whereM.test
new file mode 100644
index 0000000000000000000000000000000000000000..83436893e8a35fe51fa93578af1387ab249f68ee
--- /dev/null
+++ b/test/whereM.test
@@ -0,0 +1,112 @@
+# 2021 May 27
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# Tests focused on the "constant propagation" that occurs within the
+# WHERE clause of a SELECT statemente.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+set testprefix whereM
+
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b INTEGER, c TEXT, d REAL, e BLOB);
+  INSERT INTO t1 VALUES(10.0, 10.0, 10.0, 10.0, 10.0);
+  SELECT * FROM t1;
+} {
+  10.0 10 10.0 10.0 10.0
+}
+
+do_execsql_test 1.1.1 {
+  SELECT a=10, a = '10.0', a LIKE '10.0' FROM t1;
+} {1 0 1}
+do_execsql_test 1.1.2 {
+  SELECT count(*) FROM t1 WHERE a=10 AND a = '10.0'
+} {0}
+do_execsql_test 1.1.3 {
+  SELECT count(*) FROM t1 WHERE a=10 AND a LIKE '10.0'
+} {1}
+do_execsql_test 1.1.4 {
+  SELECT count(*) FROM t1 WHERE a='10.0' AND a LIKE '10.0'
+} {0}
+
+do_execsql_test 1.2.1 {
+  SELECT b=10, b = '10.0', b LIKE '10.0', b LIKE '10' FROM t1;
+} {1 1 0 1}
+do_execsql_test 1.2.2 {
+  SELECT count(*) FROM t1 WHERE b=10 AND b = '10.0'
+} {1}
+do_execsql_test 1.2.3 {
+  SELECT count(*) FROM t1 WHERE b=10 AND b LIKE '10.0'
+} {0}
+do_execsql_test 1.2.4 {
+  SELECT count(*) FROM t1 WHERE b='10.0' AND b LIKE '10.0'
+} {0}
+do_execsql_test 1.2.3 {
+  SELECT count(*) FROM t1 WHERE b=10 AND b LIKE '10'
+} {1}
+do_execsql_test 1.2.4 {
+  SELECT count(*) FROM t1 WHERE b='10.0' AND b LIKE '10'
+} {1}
+
+do_execsql_test 1.3.1 {
+  SELECT c=10, c = 10.0, c = '10.0', c LIKE '10.0' FROM t1;
+} {0 1 1 1}
+do_execsql_test 1.3.2 {
+  SELECT count(*) FROM t1 WHERE c=10 AND c = '10.0'
+} {0}
+do_execsql_test 1.3.3 {
+  SELECT count(*) FROM t1 WHERE c=10 AND c LIKE '10.0'
+} {0}
+do_execsql_test 1.3.4 {
+  SELECT count(*) FROM t1 WHERE c='10.0' AND c LIKE '10.0'
+} {1}
+do_execsql_test 1.3.5 {
+  SELECT count(*) FROM t1 WHERE c=10.0 AND c = '10.0'
+} {1}
+do_execsql_test 1.3.6 {
+  SELECT count(*) FROM t1 WHERE c=10.0 AND c LIKE '10.0'
+} {1}
+
+do_execsql_test 1.4.1 {
+  SELECT d=10, d = 10.0, d = '10.0', d LIKE '10.0', d LIKE '10' FROM t1;
+} {1 1 1 1 0}
+do_execsql_test 1.4.2 {
+  SELECT count(*) FROM t1 WHERE d=10 AND d = '10.0'
+} {1}
+do_execsql_test 1.4.3 {
+  SELECT count(*) FROM t1 WHERE d=10 AND d LIKE '10.0'
+} {1}
+do_execsql_test 1.4.4 {
+  SELECT count(*) FROM t1 WHERE d='10.0' AND d LIKE '10.0'
+} {1}
+do_execsql_test 1.4.5 {
+  SELECT count(*) FROM t1 WHERE d='10' AND d LIKE '10.0'
+} {1}
+
+do_execsql_test 1.5.1 {
+  SELECT e=10, e = '10.0', e LIKE '10.0', e LIKE '10' FROM t1;
+} {1 0 1 0}
+do_execsql_test 1.5.2 {
+  SELECT count(*) FROM t1 WHERE e=10 AND e = '10.0'
+} {0}
+do_execsql_test 1.5.3 {
+  SELECT count(*) FROM t1 WHERE e=10 AND e LIKE '10.0'
+} {1}
+do_execsql_test 1.5.4 {
+  SELECT count(*) FROM t1 WHERE e='10.0' AND e LIKE '10.0'
+} {0}
+do_execsql_test 1.5.5 {
+  SELECT count(*) FROM t1 WHERE e=10.0 AND e LIKE '10.0'
+} {1}
+
+finish_test
diff --git a/test/whereN.test b/test/whereN.test
new file mode 100644
index 0000000000000000000000000000000000000000..b9b889fa283edab6cb9fc45e1d7076ecb521df53
--- /dev/null
+++ b/test/whereN.test
@@ -0,0 +1,103 @@
+# 2024-04-02
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# Tests for the whereInterstageHeuristic() routine in the query planner.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix whereN
+
+# The following is a simplified and "sanitized" version of the original
+# real-world query that brought the problem to light.
+#
+# The issue is a slow query.  The answer is correct, but it was taking too
+# much time, because it was doing a full table scan rather than an indexed
+# lookup.
+#
+# The problem was that the query planner was overestimating the number of
+# output rows.  The estimated number of output rows is accurate if the
+# DSNAME parameter is "ds-one".  In that case, a large fraction of the rows
+# in "violation" end up being output.  The query planner correctly deduces
+# that it is faster to do a full table scan of the large "violation" table
+# to avoid the after-query sort that implements the ORDER BY clause. However,
+# if the DSNAME is "ds-two", then only a few rows (about 6) are generated,
+# and it is much much faster to do an indexed lookup of "violation" followed
+# by a sort operation to implement ORDER BY
+#
+# The problem, of course, is that the query planner has no way of knowing
+# in advance how many rows will be generated.  The query planner tries to
+# estimate a worst case, which is a large number of output rows, and it picks
+# the best plan for that case.  However, the plan choosen is very inefficient
+# when the number of output rows is small.
+#
+# The whereInterstageHeuristic() routine in the query planner attempts to
+# correct this by adjusting the query plan such that it avoids the very bad
+# query plan for a small number of rows, at the expense of a slightly less
+# efficient plan for a large number of rows.  The large number of rows case
+# is perhaps 5% slower with the revised plan, but the small number of
+# rows case is around 100 times faster.  That seems like a good tradeoff.
+#
+do_execsql_test 1.0 {
+  CREATE TABLE datasource(dsid INT, name TEXT);
+  INSERT INTO datasource VALUES(1,'ds-one'),(2,'ds-two'),(3,'ds-three');
+  CREATE INDEX ds1 ON datasource(name, dsid);
+
+  CREATE TABLE rule(rid INT, team_id INT, dsid INT);
+  WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<9)
+    INSERT INTO rule(rid,team_id,dsid) SELECT n, 1, 1 FROM c;
+  WITH RECURSIVE c(n) AS (VALUES(10) UNION ALL SELECT n+1 FROM c WHERE n<24)
+    INSERT INTO rule(rid,team_id,dsid) SELECT n, 2, 2 FROM c;
+  CREATE INDEX rule2 ON rule(dsid, rid);
+
+  CREATE TABLE violation(vid INT, rid INT, vx BLOB);
+  /***  Uncomment to insert actual data
+  WITH src(rid, cnt) AS (VALUES(1,3586),(2,1343),(3,6505),(5,76230),
+                               (6,740),(7,287794),(8,457),(12,1),
+                               (14,1),(16,1),(17,1),(18,1),(19,1))
+    INSERT INTO violation(vid, rid, vx)
+      SELECT rid*1000000+value, rid, randomblob(15)
+        FROM src, generate_series(1,cnt);
+  ***/
+  CREATE INDEX v1 ON violation(rid, vid);
+  CREATE INDEX v2 ON violation(vid);
+  ANALYZE;
+  DELETE FROM sqlite_stat1;
+  DROP TABLE IF EXISTS sqlite_stat4;
+  INSERT INTO sqlite_stat1 VALUES
+    ('violation','v2','376661 1'),
+    ('violation','v1','376661 28974 1'),
+    ('rule','rule2','24 12 1'),
+    ('datasource','ds1','3 1 1');
+  ANALYZE sqlite_schema;
+}
+set DSNAME ds-two   ;#  Only a few rows.  Change to "ds-one" for many rows.
+do_eqp_test 1.1 {
+  SELECT count(*), length(group_concat(vx)) FROM (
+    SELECT V.*
+      FROM datasource DS, rule R, violation V
+     WHERE V.rid=R.rid
+       AND R.dsid=DS.dsid
+       AND DS.name=$DSNAME
+     ORDER BY V.vid desc
+  );
+} {
+  QUERY PLAN
+  |--CO-ROUTINE (subquery-xxxxxx)
+  |  |--SEARCH DS USING COVERING INDEX ds1 (name=?)
+  |  |--SEARCH R USING COVERING INDEX rule2 (dsid=?)
+  |  |--SEARCH V USING INDEX v1 (rid=?)
+  |  `--USE TEMP B-TREE FOR ORDER BY
+  `--SCAN (subquery-xxxxxx)
+}
+#       ^^^^---- We want to see three SEARCH terms.  No SCAN terms.
+#                The ORDER BY is implemented by a separate sorter pass.
+
+finish_test
diff --git a/test/wherefault.test b/test/wherefault.test
new file mode 100644
index 0000000000000000000000000000000000000000..7f07ad5f535b9be88ceacdd11aba9bea0ebccc2f
--- /dev/null
+++ b/test/wherefault.test
@@ -0,0 +1,83 @@
+# 2008 December 23
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. The focus
+# is testing of where.c. More specifically, the focus is on handling OOM
+# errors within the code that optimizes WHERE clauses that feature the 
+# OR operator.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+source $testdir/malloc_common.tcl
+
+set testprefix wherefault
+
+do_malloc_test 1 -sqlprep {
+  CREATE TABLE t1(a, b, c);
+  CREATE INDEX i1 ON t1(a);
+  CREATE INDEX i2 ON t1(b);
+} -sqlbody {
+  SELECT c FROM t1
+  WHERE 
+    a = 2 OR b = 'three' OR a = 4 OR b = 'five' OR a = 6 OR
+    b = 'seven' OR a = 8 OR b = 'nine' OR a = 10
+  ORDER BY rowid;
+
+  SELECT c FROM t1 WHERE
+    a = 1 OR a = 2 OR a = 3 OR a = 4 OR a = 5 OR a = 6;
+
+  SELECT c FROM t1 WHERE
+    a BETWEEN 1 AND 3  AND b < 5 AND b > 2 AND c = 4;
+}
+
+do_malloc_test 2 -tclprep {
+  db eval {
+    BEGIN;
+    CREATE TABLE t1(a, b, c);
+    CREATE INDEX i1 ON t1(a);
+    CREATE INDEX i2 ON t1(b);
+  }
+  for {set i 0} {$i < 1000} {incr i} {
+    set ii [expr $i*$i]
+    set iii [expr $i*$i]
+    db eval { INSERT INTO t1 VALUES($i, $ii, $iii) }
+  }
+  db eval COMMIT
+} -sqlbody {
+  SELECT count(*) FROM t1 WHERE a BETWEEN 5 AND 995 OR b BETWEEN 5 AND 900000;
+}
+
+reset_db
+do_execsql_test 3.0 {
+  PRAGMA writable_schema = 1;
+  BEGIN TRANSACTION;    
+    CREATE TABLE t1(
+      a INT AS (c*11),
+      b TEXT AS (substr(d,1,3)) STORED, 
+      c INTEGEB PRIMARI KEY, d TEXT
+    );
+    CREATE INDEX t1a ON t1(a);
+  COMMIT;
+}
+faultsim_save_and_close
+
+do_faultsim_test 3.1 -faults oom* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql {
+    SELECT * FROM (SELECT a FROM t1 NATURAL JOIN t1 WHERE a IN (SELECT b FROM t1 ORDER BY b)) WHERE (SELECT a FROM t1 NATURAL JOIN (SELECT * FROM (SELECT a FROM t1 NATURAL JOIN t1 WHERE a IN (SELECT CASE b WHEN 82 THEN 207 WHEN 869 THEN 406 WHEN 85 THEN 83 WHEN 705 THEN 698 ELSE 1992229051 END%5 FROM t1 ORDER BY b)) WHERE (SELECT a FROM t1 NATURAL JOIN (SELECT b FROM t1 ORDER BY b) WHERE a IN (SELECT b FROM t1 ORDER BY b))) WHERE a );
+  }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+finish_test
diff --git a/test/wherelfault.test b/test/wherelfault.test
new file mode 100644
index 0000000000000000000000000000000000000000..cfb8c1cfb4b48c572460269465e5fbd5fd2b9233
--- /dev/null
+++ b/test/wherelfault.test
@@ -0,0 +1,82 @@
+# 2008 October 6
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing fault-injection with the 
+# LIMIT ... OFFSET ... clause of UPDATE and DELETE statements.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+set testprefix wherelfault
+
+ifcapable !update_delete_limit {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b);
+  INSERT INTO t1 VALUES(1, 'f');
+  INSERT INTO t1 VALUES(2, 'e');
+  INSERT INTO t1 VALUES(3, 'd');
+  INSERT INTO t1 VALUES(4, 'c');
+  INSERT INTO t1 VALUES(5, 'b');
+  INSERT INTO t1 VALUES(6, 'a');
+
+  CREATE VIEW v1 AS SELECT a,b FROM t1;
+  CREATE TABLE log(op, a);
+
+  CREATE TRIGGER v1del INSTEAD OF DELETE ON v1 BEGIN
+    INSERT INTO log VALUES('delete', old.a);
+  END;
+
+  CREATE TRIGGER v1upd INSTEAD OF UPDATE ON v1 BEGIN
+    INSERT INTO log VALUES('update', old.a);
+  END;
+}
+
+faultsim_save_and_close
+do_faultsim_test 1.1 -prep {
+  faultsim_restore_and_reopen
+  db eval {SELECT * FROM sqlite_master}
+} -body {
+  execsql { DELETE FROM v1 ORDER BY a LIMIT 3; }
+} -test {
+  faultsim_test_result {0 {}} 
+}
+
+do_faultsim_test 1.2 -prep {
+  faultsim_restore_and_reopen
+  db eval {SELECT * FROM sqlite_master}
+} -body {
+  execsql { UPDATE v1 SET b = 555 ORDER BY a LIMIT 3 }
+} -test {
+  faultsim_test_result {0 {}} 
+}
+
+#-------------------------------------------------------------------------
+sqlite3 db test.db
+do_execsql_test 2.1.0 {
+  CREATE TABLE t2(a, b, c, PRIMARY KEY(a, b)) WITHOUT ROWID;
+}
+faultsim_save_and_close
+
+do_faultsim_test 2.1 -prep {
+  faultsim_restore_and_reopen
+  db eval {SELECT * FROM sqlite_master}
+} -body {
+  execsql { DELETE FROM t2 WHERE c=? ORDER BY a DESC LIMIT 10 }
+} -test {
+  faultsim_test_result {0 {}} 
+}
+
+finish_test
diff --git a/test/wherelimit.test b/test/wherelimit.test
new file mode 100644
index 0000000000000000000000000000000000000000..f6efab6682326f827d155036e66059338f19a1c0
--- /dev/null
+++ b/test/wherelimit.test
@@ -0,0 +1,342 @@
+# 2008 October 6
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the LIMIT ... OFFSET ... clause
+#  of UPDATE and DELETE statements.
+#
+# $Id: wherelimit.test,v 1.2 2008/10/10 18:25:46 shane Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+proc create_test_data {size} {
+  # Build some test data
+  #
+  execsql {
+    DROP TABLE IF EXISTS t1;
+    CREATE TABLE t1(x int, y int);
+    BEGIN;
+  }
+  for {set i 1} {$i<=$size} {incr i} {
+    for {set j 1} {$j<=$size} {incr j} {
+      execsql "INSERT INTO t1 VALUES([expr {$i}],[expr {$j}])"
+    }
+  }
+  execsql {
+    COMMIT;
+  }
+  return {}
+}
+
+ifcapable {update_delete_limit} {
+
+  execsql { CREATE TABLE t1(x, y) }
+
+  # check syntax error support
+  do_test wherelimit-0.1 {
+    catchsql {DELETE FROM t1 ORDER BY x}
+  } {1 {ORDER BY without LIMIT on DELETE}}
+  do_test wherelimit-0.2 {
+    catchsql {DELETE FROM t1 WHERE x=1 ORDER BY x}
+  } {1 {ORDER BY without LIMIT on DELETE}}
+  do_test wherelimit-0.3 {
+    catchsql {UPDATE t1 SET y=1 WHERE x=1 ORDER BY x}
+  } {1 {ORDER BY without LIMIT on UPDATE}}
+
+  # no AS on table sources
+  #
+  # UPDATE: As of version 3.24, AS clauses are allowed as part of
+  # UPDATE or DELETE statements.
+  do_test wherelimit-0.4 {
+    catchsql {DELETE FROM t1 AS a WHERE a.x=1}
+  } {0 {}}
+  do_test wherelimit-0.5.1 {
+    catchsql {UPDATE t1 AS a SET y=1 WHERE x=1}
+  } {0 {}}
+  do_test wherelimit-0.5.2 {
+    catchsql {UPDATE t1 AS a SET y=1 WHERE t1.x=1}
+  } {1 {no such column: t1.x}}
+
+  # OFFSET w/o LIMIT
+  do_test wherelimit-0.6 {
+    catchsql {DELETE FROM t1 WHERE x=1 OFFSET 2}
+  } {1 {near "OFFSET": syntax error}}
+  do_test wherelimit-0.7 {
+    catchsql {UPDATE t1 SET y=1 WHERE x=1 OFFSET 2}
+  } {1 {near "OFFSET": syntax error}}
+
+  execsql { DROP TABLE t1 }
+
+  # check deletes w/o where clauses but with limit/offsets
+  create_test_data 5
+  do_test wherelimit-1.0 {
+    execsql {SELECT count(*) FROM t1}
+  } {25}
+  do_test wherelimit-1.1 {
+    execsql {DELETE FROM t1}
+    execsql {SELECT count(*) FROM t1}
+  } {0}
+  create_test_data 5
+  do_test wherelimit-1.2 {
+    execsql {DELETE FROM t1 LIMIT 5}
+    execsql {SELECT count(*) FROM t1}
+  } {20}
+  do_test wherelimit-1.3 {
+    # limit 5
+    execsql {DELETE FROM t1 ORDER BY x LIMIT 5}
+    execsql {SELECT count(*) FROM t1}
+  } {15}
+  create_test_data 4
+  do_test wherelimit-1.3b {
+    # limit 5
+    execsql {DELETE FROM t1 RETURNING x, y, '|' ORDER BY x, y LIMIT 5}
+  } {1 1 | 1 2 | 1 3 | 1 4 | 2 1 |}
+  do_test wherelimit-1.3c {
+    execsql {SELECT count(*) FROM t1}
+  } {11}
+  do_test wherelimit-1.4 {
+    # limit 5, offset 2
+    execsql {DELETE FROM t1 RETURNING x, y, '|' ORDER BY x  LIMIT 5 OFFSET 2}
+  } {2 4 | 3 1 | 3 2 | 3 3 | 3 4 |}
+  do_test wherelimit-1.4cnt {
+    execsql {SELECT count(*) FROM t1}
+  } {6}
+  do_test wherelimit-1.5 {
+    # limit 5, offset -2
+    execsql {DELETE FROM t1 ORDER BY x LIMIT 5 OFFSET -2}
+    execsql {SELECT count(*) FROM t1}
+  } {1}
+  do_test wherelimit-1.6 {
+    # limit -5 (no limit), offset 2
+    execsql {DELETE FROM t1 ORDER BY x LIMIT 2, -5}
+    execsql {SELECT count(*) FROM t1}
+  } {1}
+  do_test wherelimit-1.7 {
+    # limit 5, offset -2 (no offset)
+    execsql {DELETE FROM t1 ORDER BY x LIMIT -2, 5}
+    execsql {SELECT count(*) FROM t1}
+  } {0}
+  create_test_data 5
+  do_test wherelimit-1.8 {
+    # limit -5 (no limit), offset -2 (no offset)
+    execsql {DELETE FROM t1 ORDER BY x LIMIT -2, -5}
+    execsql {SELECT count(*) FROM t1}
+  } {0}
+  create_test_data 3
+  do_test wherelimit-1.9 {
+    # limit 5, offset 2
+    execsql {DELETE FROM t1 ORDER BY x LIMIT 2, 5}
+    execsql {SELECT count(*) FROM t1}
+  } {4}
+  do_test wherelimit-1.10 {
+    # limit 5, offset 5
+    execsql {DELETE FROM t1 ORDER BY x LIMIT 5 OFFSET 5}
+    execsql {SELECT count(*) FROM t1}
+  } {4}
+  do_test wherelimit-1.11 {
+    # limit 50, offset 30
+    execsql {DELETE FROM t1 ORDER BY x LIMIT 50 OFFSET 30}
+    execsql {SELECT count(*) FROM t1}
+  } {4}
+  do_test wherelimit-1.12 {
+    # limit 50, offset 30
+    execsql {DELETE FROM t1 ORDER BY x LIMIT 30, 50}
+    execsql {SELECT count(*) FROM t1}
+  } {4}
+  do_test wherelimit-1.13 {
+    execsql {DELETE FROM t1 ORDER BY x LIMIT 50 OFFSET 50}
+    execsql {SELECT count(*) FROM t1}
+  } {4}
+
+
+  create_test_data 6
+  do_test wherelimit-2.0 {
+    execsql {SELECT count(*) FROM t1}
+  } {36}
+  do_test wherelimit-2.1 {
+    execsql {DELETE FROM t1 WHERE x=1}
+    execsql {SELECT count(*) FROM t1}
+  } {30}
+  create_test_data 6
+  do_test wherelimit-2.2 {
+    execsql {DELETE FROM t1 WHERE x=1 LIMIT 5}
+    execsql {SELECT count(*) FROM t1}
+  } {31}
+  do_test wherelimit-2.3 {
+    # limit 5
+    execsql {DELETE FROM t1 WHERE x=1 ORDER BY x LIMIT 5}
+    execsql {SELECT count(*) FROM t1}
+  } {30}
+  do_test wherelimit-2.4 {
+    # limit 5, offset 2
+    execsql {DELETE FROM t1 WHERE x=2 ORDER BY x LIMIT 5 OFFSET 2}
+    execsql {SELECT count(*) FROM t1}
+  } {26}
+  do_test wherelimit-2.5 {
+    # limit 5, offset -2
+    execsql {DELETE FROM t1 WHERE x=2 ORDER BY x LIMIT 5 OFFSET -2}
+    execsql {SELECT count(*) FROM t1}
+  } {24}
+  do_test wherelimit-2.6 {
+    # limit -5 (no limit), offset 2
+    execsql {DELETE FROM t1 WHERE x=3 ORDER BY x LIMIT 2, -5}
+    execsql {SELECT count(*) FROM t1}
+  } {20}
+  do_test wherelimit-2.7 {
+    # limit 5, offset -2 (no offset)
+    execsql {DELETE FROM t1 WHERE x=3 ORDER BY x LIMIT -2, 5}
+    execsql {SELECT count(*) FROM t1}
+  } {18}
+  do_test wherelimit-2.8 {
+    # limit -5 (no limit), offset -2 (no offset)
+    execsql {DELETE FROM t1 WHERE x=4 ORDER BY x LIMIT -2, -5}
+    execsql {SELECT count(*) FROM t1}
+  } {12}
+  create_test_data 6
+  do_test wherelimit-2.9 {
+    # limit 5, offset 2
+    execsql {DELETE FROM t1 WHERE x=5 ORDER BY x LIMIT 2, 5}
+    execsql {SELECT count(*) FROM t1}
+  } {32}
+  do_test wherelimit-2.10 {
+    # limit 5, offset 5
+    execsql {DELETE FROM t1 WHERE x=6 ORDER BY x LIMIT 5 OFFSET 5}
+    execsql {SELECT count(*) FROM t1}
+  } {31}
+  do_test wherelimit-2.11 {
+    # limit 50, offset 30
+    execsql {DELETE FROM t1 WHERE x=1 ORDER BY x LIMIT 50 OFFSET 30}
+    execsql {SELECT count(*) FROM t1}
+  } {31}
+  do_test wherelimit-2.12 {
+    # limit 50, offset 30
+    execsql {DELETE FROM t1 WHERE x=2 ORDER BY x LIMIT 30, 50}
+    execsql {SELECT count(*) FROM t1}
+  } {31}
+  do_test wherelimit-2.13 {
+    execsql {DELETE FROM t1 WHERE x=3 ORDER BY x LIMIT 50 OFFSET 50}
+    execsql {SELECT count(*) FROM t1}
+  } {31}
+
+
+  create_test_data 6
+  do_test wherelimit-3.0 {
+    execsql {SELECT count(*) FROM t1}
+  } {36}
+  do_test wherelimit-3.1 {
+    execsql {UPDATE t1 SET y=1 WHERE x=1}
+    execsql {SELECT count(*) FROM t1 WHERE y=1}
+  } {11}
+  create_test_data 6
+  do_test wherelimit-3.2 {
+    execsql {UPDATE t1 SET y=1 WHERE x=1 RETURNING x, y, '|' LIMIT 5}
+  } {1 1 | 1 1 | 1 1 | 1 1 | 1 1 |}
+  do_test wherelimit-3.2cnt {
+    execsql {SELECT count(*) FROM t1 WHERE y=1}
+  } {10}
+  do_test wherelimit-3.3 {
+    # limit 5
+    execsql {UPDATE t1 SET y=2 WHERE x=2 ORDER BY x LIMIT 5}
+    execsql {SELECT count(*) FROM t1 WHERE y=2}
+  } {9}
+  create_test_data 6
+  do_test wherelimit-3.4 {
+    # limit 5, offset 2
+    execsql {UPDATE t1 SET y=2 WHERE x=2 ORDER BY x LIMIT 5 OFFSET 2}
+    execsql {SELECT count(*) FROM t1 WHERE y=1}
+  } {6}
+  do_test wherelimit-3.5 {
+    # limit 5, offset -2
+    execsql {UPDATE t1 SET y=2 WHERE x=2 ORDER BY x LIMIT 5 OFFSET -2}
+    execsql {SELECT count(*) FROM t1 WHERE y=1}
+  } {5}
+  do_test wherelimit-3.6 {
+    # limit -5 (no limit), offset 2
+    execsql {UPDATE t1 SET y=3 WHERE x=3 ORDER BY x LIMIT 2, -5}
+    execsql {SELECT count(*) FROM t1 WHERE y=3}
+  } {8}
+  do_test wherelimit-3.7 {
+    # limit 5, offset -2 (no offset)
+    execsql {UPDATE t1 SET y=3 WHERE x=3 ORDER BY x LIMIT -2, 5}
+    execsql {SELECT count(*) FROM t1 WHERE y=3}
+  } {10}
+
+  do_test wherelimit-3.8 {
+    # limit -5 (no limit), offset -2 (no offset)
+    execsql {UPDATE t1 SET y=4 WHERE x=4 ORDER BY x LIMIT -2, -5}
+    execsql {SELECT count(*) FROM t1 WHERE y=4}
+  } {9}
+  create_test_data 6
+  do_test wherelimit-3.9 {
+    # limit 5, offset 2
+    execsql {UPDATE t1 SET y=4 WHERE x=5 ORDER BY x LIMIT 2, 5}
+    execsql {SELECT count(*) FROM t1 WHERE y=4}
+  } {9}
+  do_test wherelimit-3.10 {
+    # limit 5, offset 5
+    execsql {UPDATE t1 SET y=4 WHERE x=6 ORDER BY x LIMIT 5 OFFSET 5}
+    execsql {SELECT count(*) FROM t1 WHERE y=1}
+  } {6}
+  do_test wherelimit-3.11 {
+    # limit 50, offset 30
+    execsql {UPDATE t1 SET y=1 WHERE x=1 ORDER BY x LIMIT 50 OFFSET 30}
+    execsql {SELECT count(*) FROM t1 WHERE y=1}
+  } {6}
+  do_test wherelimit-3.12 {
+    # limit 50, offset 30
+    execsql {UPDATE t1 SET y=1 WHERE x=2 ORDER BY x LIMIT 30, 50}
+    execsql {SELECT count(*) FROM t1 WHERE y=1}
+  } {6}
+  do_test wherelimit-3.13 {
+    execsql {UPDATE t1 SET y=1 WHERE x=3 ORDER BY x LIMIT 50 OFFSET 50}
+    execsql {SELECT count(*) FROM t1 WHERE y=1}
+  } {6}
+
+  # Cannot use a LIMIT for UPDATE or DELETE against a WITHOUT ROWID table
+  # or a VIEW.  (We should fix this someday).
+  #
+  db close
+  sqlite3 db :memory:
+  do_execsql_test wherelimit-4.1 {
+    CREATE TABLE t1(a int);
+    INSERT INTO t1 VALUES(1);
+    INSERT INTO t1 VALUES(2);
+    INSERT INTO t1 VALUES(3);
+    CREATE TABLE t2(a int);
+    INSERT INTO t2 SELECT a+100 FROM t1;
+    CREATE VIEW tv(r,a) AS
+       SELECT rowid, a FROM t2 UNION ALL SELECT rowid, a FROM t1;
+    CREATE TRIGGER tv_del INSTEAD OF DELETE ON tv
+    BEGIN
+      DELETE FROM t1 WHERE rowid=old.r;
+      DELETE FROM t2 WHERE rowid=old.r;
+    END;
+  } {}
+  do_catchsql_test wherelimit-4.2 {
+    DELETE FROM tv WHERE 1 LIMIT 2;
+  } {0 {}}
+  do_catchsql_test wherelimit-4.3 {
+    DELETE FROM tv WHERE 1 ORDER BY a LIMIT 2;
+  } {0 {}}
+  do_execsql_test wherelimit-4.10 {
+    CREATE TABLE t3(a,b,c,d TEXT, PRIMARY KEY(a,b)) WITHOUT ROWID;
+    INSERT INTO t3(a,b,c,d) VALUES(1,2,3,4),(5,6,7,8),(9,10,11,12);
+  } {}
+  do_catchsql_test wherelimit-4.11 {
+    DELETE FROM t3 WHERE a=5 LIMIT 2;
+  } {0 {}}
+  do_execsql_test wherelimit-4.12 {
+    SELECT a,b,c,d FROM t3 ORDER BY 1;
+  } {1 2 3 4 9 10 11 12}
+
+}
+
+finish_test
diff --git a/test/wherelimit2.test b/test/wherelimit2.test
new file mode 100644
index 0000000000000000000000000000000000000000..57288bf64cb290de26cd0ecb605628787f560c83
--- /dev/null
+++ b/test/wherelimit2.test
@@ -0,0 +1,333 @@
+# 2008 October 6
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the LIMIT ... OFFSET ... clause
+#  of UPDATE and DELETE statements.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix wherelimit2
+
+ifcapable !update_delete_limit {
+  finish_test
+  return
+}
+
+#-------------------------------------------------------------------------
+# Test with views and INSTEAD OF triggers.
+#
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b);
+  INSERT INTO t1 VALUES(1, 'f');
+  INSERT INTO t1 VALUES(2, 'e');
+  INSERT INTO t1 VALUES(3, 'd');
+  INSERT INTO t1 VALUES(4, 'c');
+  INSERT INTO t1 VALUES(5, 'b');
+  INSERT INTO t1 VALUES(6, 'a');
+
+  CREATE VIEW v1 AS SELECT a,b FROM t1;
+  CREATE TABLE log(op, a);
+
+  CREATE TRIGGER v1del INSTEAD OF DELETE ON v1 BEGIN
+    INSERT INTO log VALUES('delete', old.a);
+  END;
+
+  CREATE TRIGGER v1upd INSTEAD OF UPDATE ON v1 BEGIN
+    INSERT INTO log VALUES('update', old.a);
+  END;
+}
+
+do_execsql_test 1.1 {
+  DELETE FROM v1 ORDER BY a LIMIT 3;
+  SELECT * FROM log; DELETE FROM log;
+} {
+  delete 1 delete 2 delete 3
+}
+do_execsql_test 1.2 {
+  DELETE FROM v1 ORDER BY b LIMIT 3;
+  SELECT * FROM log; DELETE FROM log;
+} {
+  delete 6 delete 5 delete 4
+}
+do_execsql_test 1.3 {
+  UPDATE v1 SET b = 555 ORDER BY a LIMIT 3;
+  SELECT * FROM log; DELETE FROM log;
+} {
+  update 1 update 2 update 3
+}
+do_execsql_test 1.4 {
+  UPDATE v1 SET b = 555 ORDER BY b LIMIT 3;
+  SELECT * FROM log; DELETE FROM log;
+} {
+  update 6 update 5 update 4
+}
+
+#-------------------------------------------------------------------------
+# Simple test using WITHOUT ROWID table.
+#
+do_execsql_test 2.1.0 {
+  CREATE TABLE t2(a, b, c, PRIMARY KEY(a, b)) WITHOUT ROWID;
+  INSERT INTO t2 VALUES(1, 1, 'h');
+  INSERT INTO t2 VALUES(1, 2, 'g');
+  INSERT INTO t2 VALUES(2, 1, 'f');
+  INSERT INTO t2 VALUES(2, 2, 'e');
+  INSERT INTO t2 VALUES(3, 1, 'd');
+  INSERT INTO t2 VALUES(3, 2, 'c');
+  INSERT INTO t2 VALUES(4, 1, 'b');
+  INSERT INTO t2 VALUES(4, 2, 'a');
+}
+
+do_execsql_test 2.1.1 {
+  BEGIN;
+    DELETE FROM t2 WHERE b=1 ORDER BY c LIMIT 2;
+    SELECT c FROM t2 ORDER BY 1;
+  ROLLBACK;
+} {a c e f g h}
+
+do_execsql_test 2.1.2 {
+  BEGIN;
+    UPDATE t2 SET c=NULL ORDER BY a, b DESC LIMIT 3 OFFSET 1;
+    SELECT a, b, c FROM t2;
+  ROLLBACK;
+} {
+  1 1 {} 
+  1 2 g 
+  2 1 {} 
+  2 2 {} 
+  3 1 d 
+  3 2 c 
+  4 1 b 
+  4 2 a
+}
+
+do_execsql_test 2.2.0 {
+  DROP TABLE t2;
+  CREATE TABLE t2(a INTEGER PRIMARY KEY, b, c) WITHOUT ROWID;
+  INSERT INTO t2 VALUES(1, 1, 'h');
+  INSERT INTO t2 VALUES(2, 2, 'g');
+  INSERT INTO t2 VALUES(3, 1, 'f');
+  INSERT INTO t2 VALUES(4, 2, 'e');
+  INSERT INTO t2 VALUES(5, 1, 'd');
+  INSERT INTO t2 VALUES(6, 2, 'c');
+  INSERT INTO t2 VALUES(7, 1, 'b');
+  INSERT INTO t2 VALUES(8, 2, 'a');
+}
+
+do_execsql_test 2.2.1 {
+  BEGIN;
+    DELETE FROM t2 WHERE b=1 ORDER BY c LIMIT 2;
+    SELECT c FROM t2 ORDER BY 1;
+  ROLLBACK;
+} {a c e f g h}
+
+do_execsql_test 2.2.2 {
+  BEGIN;
+    UPDATE t2 SET c=NULL ORDER BY a DESC LIMIT 3 OFFSET 1;
+    SELECT a, b, c FROM t2;
+  ROLLBACK;
+} {
+  1 1 h
+  2 2 g 
+  3 1 f
+  4 2 e
+  5 1 {}
+  6 2 {} 
+  7 1 {} 
+  8 2 a
+}
+
+#-------------------------------------------------------------------------
+# Test using a virtual table
+#
+ifcapable fts5 {
+  do_execsql_test 3.0 {
+    CREATE VIRTUAL TABLE ft USING fts5(x);
+    INSERT INTO ft(rowid, x) VALUES(-45,   'a a');
+    INSERT INTO ft(rowid, x) VALUES(12,    'a b');
+    INSERT INTO ft(rowid, x) VALUES(444,   'a c');
+    INSERT INTO ft(rowid, x) VALUES(12300, 'a d');
+    INSERT INTO ft(rowid, x) VALUES(25400, 'a c');
+    INSERT INTO ft(rowid, x) VALUES(25401, 'a b');
+    INSERT INTO ft(rowid, x) VALUES(50000, 'a a');
+  }
+
+  do_execsql_test 3.1.1 {
+    BEGIN;
+      DELETE FROM ft ORDER BY rowid LIMIT 3;
+      SELECT x FROM ft;
+    ROLLBACK;
+  } {{a d} {a c} {a b} {a a}}
+
+  do_execsql_test 3.1.2 {
+    BEGIN;
+      DELETE FROM ft WHERE ft MATCH 'a' ORDER BY rowid LIMIT 3;
+      SELECT x FROM ft;
+    ROLLBACK;
+  } {{a d} {a c} {a b} {a a}}
+  
+  do_execsql_test 3.1.3 {
+    BEGIN;
+      DELETE FROM ft WHERE ft MATCH 'b' ORDER BY rowid ASC LIMIT 1 OFFSET 1;
+      SELECT rowid FROM ft;
+    ROLLBACK;
+  } {-45 12 444 12300 25400 50000}
+
+  do_execsql_test 3.2.1 {
+    BEGIN;
+      UPDATE ft SET x='hello' ORDER BY rowid LIMIT 2 OFFSET 2;
+      SELECT x FROM ft;
+    ROLLBACK;
+  } {{a a} {a b} hello hello {a c} {a b} {a a}}
+
+  do_execsql_test 3.2.2 {
+    BEGIN;
+      UPDATE ft SET x='hello' WHERE ft MATCH 'a' 
+          ORDER BY rowid DESC LIMIT 2 OFFSET 2;
+      SELECT x FROM ft;
+    ROLLBACK;
+  } {{a a} {a b} {a c} hello hello {a b} {a a}}
+} ;# fts5
+
+#-------------------------------------------------------------------------
+# Test using INDEXED BY clauses.
+#
+do_execsql_test 4.0 {
+  CREATE TABLE x1(a INTEGER PRIMARY KEY, b, c, d);
+  CREATE INDEX x1bc ON x1(b, c);
+  INSERT INTO x1 VALUES(1,1,1,1);
+  INSERT INTO x1 VALUES(2,1,2,2);
+  INSERT INTO x1 VALUES(3,2,1,3);
+  INSERT INTO x1 VALUES(4,2,2,3);
+  INSERT INTO x1 VALUES(5,3,1,2);
+  INSERT INTO x1 VALUES(6,3,2,1);
+}
+
+do_execsql_test 4.1 {
+  BEGIN;
+    DELETE FROM x1 ORDER BY a LIMIT 2;
+    SELECT a FROM x1;
+  ROLLBACK;
+} {3 4 5 6}
+
+# 2020-06-03: Query planner improved so that a solution is possible.
+#
+#do_catchsql_test 4.2 {
+#  DELETE FROM x1 INDEXED BY x1bc WHERE d=3 LIMIT 1;
+#} {1 {no query solution}}
+
+do_execsql_test 4.3 {
+  DELETE FROM x1 INDEXED BY x1bc WHERE b=3 LIMIT 1;
+  SELECT a FROM x1;
+} {1 2 3 4 6}
+
+# 2020-06-03: Query planner improved so that a solution is possible.
+#
+#do_catchsql_test 4.4 {
+#  UPDATE x1 INDEXED BY x1bc SET d=5 WHERE d=3 LIMIT 1;
+#} {1 {no query solution}}
+
+do_execsql_test 4.5 {
+  UPDATE x1 INDEXED BY x1bc SET d=5 WHERE b=2 LIMIT 1;
+  SELECT a, d FROM x1;
+} {1 1 2 2 3 5 4 3 6 1}
+
+#-------------------------------------------------------------------------
+# Test using object names that require quoting.
+#
+do_execsql_test 5.0 {
+  CREATE TABLE "x y"("a b" PRIMARY KEY, "c d") WITHOUT ROWID;
+  CREATE INDEX xycd ON "x y"("c d");
+
+  INSERT INTO "x y" VALUES('a', 'a');
+  INSERT INTO "x y" VALUES('b', 'b');
+  INSERT INTO "x y" VALUES('c', 'c');
+  INSERT INTO "x y" VALUES('d', 'd');
+  INSERT INTO "x y" VALUES('e', 'a');
+  INSERT INTO "x y" VALUES('f', 'b');
+  INSERT INTO "x y" VALUES('g', 'c');
+  INSERT INTO "x y" VALUES('h', 'd');
+}
+
+do_execsql_test 5.1 {
+  BEGIN;
+    DELETE FROM "x y" WHERE "c d"!='e' ORDER BY "c d" LIMIT 2 OFFSET 2;
+    SELECT * FROM "x y" ORDER BY 1;
+  ROLLBACK;
+} {
+  a a c c d d e a g c h d
+}
+
+do_execsql_test 5.2 {
+  BEGIN;
+    UPDATE "x y" SET "c d"='e' WHERE "c d"!='e' ORDER BY "c d" LIMIT 2 OFFSET 2;
+    SELECT * FROM "x y" ORDER BY 1;
+  ROLLBACK;
+} {
+  a a b e c c d d e a f e g c h d
+}
+
+proc log {args} { lappend ::log {*}$args }
+db func log log
+do_execsql_test 5.3 {
+  CREATE VIEW "v w" AS SELECT * FROM "x y";
+  CREATE TRIGGER tr1 INSTEAD OF DELETE ON "v w" BEGIN
+    SELECT log(old."a b", old."c d");
+  END;
+  CREATE TRIGGER tr2 INSTEAD OF UPDATE ON "v w" BEGIN
+    SELECT log(new."a b", new."c d");
+  END;
+}
+
+do_test 5.4 {
+  set ::log {}
+  execsql { DELETE FROM "v w" ORDER BY "a b" LIMIT 3 }
+  set ::log
+} {a a b b c c}
+
+do_test 5.5 {
+  set ::log {}
+  execsql { UPDATE "v w" SET "a b" = "a b" || 'x' ORDER BY "a b" LIMIT 5; }
+  set ::log
+} {ax a bx b cx c dx d ex a}
+
+#-----------------------------------------------------------------------
+reset_db
+do_execsql_test 6.0 {
+  CREATE TABLE t2(x);  
+  INSERT INTO t2(x) VALUES(1),(2),(3),(5),(8),(13);
+} {}
+
+do_execsql_test 6.1 {
+  WITH t2 AS MATERIALIZED (VALUES(5))
+  DELETE FROM t2 ORDER BY rank()OVER() LIMIT 2;
+}
+
+do_execsql_test 6.2 {
+  SELECT * FROM t2;
+} {3 5 8 13}
+
+#-------------------------------------------------------------------------
+
+do_execsql_test 7.0 {
+  CREATE TABLE t1(a INT); INSERT INTO t1(a) VALUES(0);
+} {}
+
+do_execsql_test 7.1 {
+  WITH t1(b) AS (SELECT * FROM (SELECT * FROM (VALUES(2))))
+  UPDATE t1 SET a=3 LIMIT 1;
+}
+
+do_execsql_test 7.2 {
+  SELECT * FROM t1;
+} {3}
+
+finish_test
diff --git a/test/wherelimit3.test b/test/wherelimit3.test
new file mode 100644
index 0000000000000000000000000000000000000000..dea3e97d86a7e7c6595a6206739cf75fdc63ca0a
--- /dev/null
+++ b/test/wherelimit3.test
@@ -0,0 +1,67 @@
+# 2024-06-06
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test cases for query plans using LIMIT
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix wherelimit3
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a INT, b INT);
+  WITH RECURSIVE c(n) AS (VALUES(1) UNION ALL SELECT n+1 FROM c WHERE n<1000)
+    INSERT INTO t1 SELECT n, n FROM c;
+  CREATE INDEX t1a ON t1(a);
+  CREATE INDEX t1b ON t1(b);
+  ANALYZE;
+}
+
+do_eqp_test 1.1 {
+  SELECT * FROM t1 WHERE a>=100 AND a<300 ORDER BY b LIMIT 5;
+} {
+  QUERY PLAN
+  |--SEARCH t1 USING INDEX t1a (a>? AND a<?)
+  `--USE TEMP B-TREE FOR ORDER BY
+}
+ifcapable stat4 {
+  do_eqp_test 1.2 {
+    SELECT * FROM t1 WHERE a>=100 AND a<300 ORDER BY b LIMIT -1;
+  } {
+    QUERY PLAN
+    `--SCAN t1 USING INDEX t1b
+  }
+}
+
+set N [expr 5]
+do_eqp_test 1.3 {
+  SELECT * FROM t1 WHERE a>=100 AND a<300 ORDER BY b LIMIT $::N;
+} {
+  QUERY PLAN
+  |--SEARCH t1 USING INDEX t1a (a>? AND a<?)
+  `--USE TEMP B-TREE FOR ORDER BY
+}
+
+ifcapable stat4 {
+  set N [expr -1]
+  do_eqp_test 1.4 {
+    SELECT * FROM t1 WHERE a>=100 AND a<300 ORDER BY b LIMIT $::N;
+  } {
+    QUERY PLAN
+    `--SCAN t1 USING INDEX t1b
+  }
+}
+
+
+
+
+
+finish_test
diff --git a/test/widetab1.test b/test/widetab1.test
new file mode 100644
index 0000000000000000000000000000000000000000..39523ce882591faf694b04b71764ef9441955737
--- /dev/null
+++ b/test/widetab1.test
@@ -0,0 +1,156 @@
+# 2022-10-24
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements test cases for wide table (tables with more than
+# 64 columns) and indexes that reference columns beyond the 63rd or 64th
+# column.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix widetab1
+
+
+# In order to pick the better index in the following query, SQLite needs to
+# be able to detect when an index that references later columns in a wide
+# table is a covering index.
+#
+do_execsql_test 100 {
+  CREATE TABLE a(
+   a00, a01, a02, a03, a04, a05, a06, a07, a08, a09,
+   a10, a11, a12, a13, a14, a15, a16, a17, a18, a19,
+   a20, a21, a22, a23, a24, a25, a26, a27, a28, a29,
+   a30, a31, a32, a33, a34, a35, a36, a37, a38, a39,
+   a40, a41, a42, a43, a44, a45, a46, a47, a48, a49,
+   a50, a51, a52, a53, a54, a55, a56, a57, a58, a59,
+   pd, bn, vb, bc, cn, ie, qm);
+  CREATE INDEX a1 on a(pd, bn, vb, bc, cn); -- preferred index
+  CREATE INDEX a2 on a(pd, bc, ie, qm);     -- suboptimal index
+  CREATE TABLE b(bg, bc, bn, iv, ln, mg);
+  CREATE INDEX b1 on b(bn, iv, bg);
+}
+do_eqp_test 110 {
+  SELECT dc, count(cn)
+    FROM (SELECT coalesce(b.bg, a.bc) as dc, cn
+            FROM a LEFT JOIN b
+                  ON a.bn = b.bn
+                 AND CASE WHEN a.vb IS NOT NULL THEN 1 ELSE 0 END = b.iv
+           WHERE pd BETWEEN 0 AND 10)
+   GROUP BY dc;
+} {
+  QUERY PLAN
+  |--SEARCH a USING COVERING INDEX a1 (pd>? AND pd<?)
+  |--SEARCH b USING COVERING INDEX b1 (bn=? AND iv=?) LEFT-JOIN
+  `--USE TEMP B-TREE FOR GROUP BY
+}
+
+reset_db
+do_execsql_test 200 {
+  CREATE TABLE t1(
+    c00,c01,c02,c03,c04,c05,c06,c07,c08,c09,
+    c10,c11,c12,c13,c14,c15,c16,c17,c18,c19,
+    c20,c21,c22,c23,c24,c25,c26,c27,c28,c29,
+    c30,c31,c32,c33,c34,c35,c36,c37,c38,c39,
+    c40,c41,c42,c43,c44,c45,c46,c47,c48,c49,
+    c50,c51,c52,c53,c54,c55,c56,c57,c58,c59,
+    c60,c61,c62,c63,c64,c65,c66,c67,c68,c69,
+    c70,c71,c72,c73,c74,c75,c76,c77,c78,c79,
+    c80,c81,c82,c83,c84,c85,c86,c87,c88,c89,
+    c90,c91,c92,c93,c94,c95,c96,c97,c98,c99,
+    a,b,c,d,e
+  );
+  CREATE INDEX t1x1 on t1(c00,a,b,
+        c01,c02,c03,c04,c05,c06,c07,c08,c09,
+    c10,c11,c12,c13,c14,c15,c16,c17,c18,c19,
+    c20,c21,c22,c23,c24,c25,c26,c27,c28,c29,
+    c30,c31,c32,c33,c34,c35,c36,c37,c38,c39,
+    c40,c41,c42,c43,c44,c45,c46,c47,c48,c49,
+    c50,c51,c52,c53,c54,c55,c56,c57,c58,c59,
+    c60,c61,c62,c63,c64,c65,c66,c67,c68,c69,
+    c70,c71,c72,c73,c74,c75,c76,c77,c78,c79,
+    c80,c81,c82,c83,c84,c85,c86,c87,c88,c89,
+    c90,c91,c92,c93,c94,c00,c96,c97,c98,c99
+  );
+  CREATE INDEX t1cd ON t1(c,d);
+  CREATE INDEX t1x2 ON t1(c01,c02,c03,a,b);
+  WITH RECURSIVE c(x) AS (VALUES(0) UNION ALL SELECT x+1000 FROM c WHERE x<9000)
+  INSERT INTO t1 SELECT
+    x+00, x+01, x+02, x+03, x+04, x+05, x+06, x+07, x+08, x+09,
+    x+10, x+11, x+12, x+13, x+14, x+15, x+16, x+17, x+18, x+19,
+    x+20, x+21, x+22, x+23, x+24, x+25, x+26, x+27, x+28, x+29,
+    x+30, x+31, x+32, x+33, x+34, x+35, x+36, x+37, x+38, x+39,
+    x+40, x+41, x+42, x+43, x+44, x+45, x+46, x+47, x+48, x+49,
+    x+50, x+51, x+52, x+53, x+54, x+55, x+56, x+57, x+58, x+59,
+    x+60, x+61, x+62, x+63, x+64, x+65, x+66, x+67, x+68, x+69,
+    x+70, x+71, x+72, x+73, x+74, x+75, x+76, x+77, x+78, x+79,
+    x+80, x+81, x+82, x+83, x+84, x+85, x+86, x+87, x+88, x+89,
+    x+90, x+91, x+92, x+93, x+94, x+95, x+96, x+97, x+98, x+99,
+    x+100, x+101, x+102, x+103, x+104 FROM c;
+}
+
+do_execsql_test 210 {SELECT sum(c62) FROM t1;} 45620
+do_execsql_test 220 {SELECT sum(c63) FROM t1;} 45630
+do_execsql_test 230 {SELECT sum(c64) FROM t1;} 45640
+do_execsql_test 240 {SELECT sum(c65) FROM t1;} 45650
+
+do_execsql_test 300 {
+  BEGIN;
+  SELECT sum(c62) FROM t1;
+  UPDATE t1 SET c62=c62+1 WHERE c00=1000;
+  SELECT sum(c62) FROM t1;
+} {45620 45621}
+do_execsql_test 310 {
+  SELECT sum(c65) FROM t1;
+  UPDATE t1 SET c65=c65+1 WHERE c00=1000;
+  SELECT sum(c65) FROM t1;
+  ROLLBACK;
+} {45650 45651}
+
+do_execsql_test 320 {
+  BEGIN;
+  SELECT count(*) FROM t1;
+  DELETE FROM t1 WHERE c=3102;
+  SELECT COUNT(*) FROM t1;
+  ROLLBACK;
+} {10 9}
+do_execsql_test 330 {
+  BEGIN;
+  SELECT count(*) FROM t1;
+  DELETE FROM t1 WHERE c=3102 AND d=3103;
+  SELECT COUNT(*) FROM t1;
+  ROLLBACK;
+} {10 9}
+do_execsql_test 340 {
+  BEGIN;
+  DELETE FROM t1 WHERE (c,d) IN (VALUES(3102,3103),(4102,4103),(5102,5103),(1,2));
+  SELECT count(*) FROM t1;
+  ROLLBACK;
+} {7}
+
+do_execsql_test 400 {
+  DROP INDEX t1cd;
+  DROP INDEX t1x1;
+  DROP INDEX t1x2;
+  CREATE INDEX t1x3 ON t1(c00,c05,c08);
+}
+do_execsql_test 410 {SELECT sum(c08) FROM t1 WHERE c00 IN (1000,5000);} 6016
+do_execsql_test 420 {SELECT sum(c63) FROM t1 WHERE c00 IN (1000,5000);} 6126
+do_execsql_test 430 {SELECT sum(c64) FROM t1 WHERE c00 IN (1000,5000);} 6128
+
+do_execsql_test 500 {
+  DROP INDEX t1x3;
+  CREATE TABLE t2 AS SELECT * FROM t1;
+  CREATE INDEX t1x4 ON t1(c00, c62, a, b);
+  CREATE INDEX t2x4 ON t2(c01, c62, c63, b, c);
+  SELECT t1.b, t2.b FROM t1 JOIN t2 ON t2.c01=t1.c00+1 WHERE +t1.b<7000
+   ORDER BY +t1.b;
+} {101 101 1101 1101 2101 2101 3101 3101 4101 4101 5101 5101 6101 6101}
+
+finish_test
diff --git a/test/win32heap.test b/test/win32heap.test
new file mode 100644
index 0000000000000000000000000000000000000000..82a3f6b6634b248fd0fd27e9f9bd459682a602af
--- /dev/null
+++ b/test/win32heap.test
@@ -0,0 +1,73 @@
+# 2013 November 22
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is the Win32 heap implementation.
+#
+
+if {$tcl_platform(platform)!="windows"} return
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !win32malloc {
+  finish_test
+  return
+}
+
+set testprefix win32heap
+
+do_test 1.1 {
+  catch {db close}
+  sqlite3_shutdown
+  sqlite3_config_heap_size 1048576
+  sqlite3_initialize
+} {SQLITE_OK}
+
+do_test 1.2 {
+  sqlite3 db test.db
+  catchsql {
+    CREATE TABLE t1(x);
+  }
+} {0 {}}
+
+do_test 1.3 {
+  catchsql {
+    INSERT INTO t1 (x) VALUES(RANDOMBLOB(1048576));
+  }
+} {1 {out of memory}}
+
+do_test 1.4 {
+  catchsql {
+    SELECT COUNT(*) FROM t1;
+  }
+} {0 0}
+
+do_test 1.5 {
+  catch {db close}
+  sqlite3_shutdown
+  sqlite3_config_heap_size 0
+  sqlite3_initialize
+} {SQLITE_OK}
+
+do_test 1.6 {
+  sqlite3 db test.db
+  catchsql {
+    INSERT INTO t1 (x) VALUES(RANDOMBLOB(1048576));
+  }
+} {0 {}}
+
+do_test 1.7 {
+  catchsql {
+    SELECT COUNT(*) FROM t1;
+  }
+} {0 1}
+
+finish_test
diff --git a/test/win32lock.test b/test/win32lock.test
new file mode 100644
index 0000000000000000000000000000000000000000..fbb2dd13cd4f7c5b1764a689769e70fba71ec962
--- /dev/null
+++ b/test/win32lock.test
@@ -0,0 +1,184 @@
+# 2011 July 11
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is recovery from transient manditory locks
+# that sometimes appear on database files due to anti-virus software.
+#
+# TESTRUNNER: slow
+#
+
+if {$tcl_platform(platform)!="windows"} return
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+set testprefix win32lock
+
+db close
+sqlite3_shutdown
+test_sqlite3_log xLog
+proc xLog {error_code msg} {
+  lappend ::log $msg
+}
+sqlite3 db test.db
+db eval {PRAGMA mmap_size=0}
+
+do_test win32lock-1.1 {
+  db eval {
+    PRAGMA cache_size=10;
+    CREATE TABLE t1(x,y);
+    INSERT INTO t1 VALUES(1,randomblob(100000));
+    INSERT INTO t1 VALUES(2,randomblob(50000));
+    INSERT INTO t1 VALUES(3,randomblob(25000));
+    INSERT INTO t1 VALUES(4,randomblob(12500));
+    SELECT x, length(y) FROM t1 ORDER BY rowid;
+  }
+} {1 100000 2 50000 3 25000 4 12500}
+
+unset -nocomplain delay1 rc msg
+set old_pending_byte [sqlite3_test_control_pending_byte 0x40000000]
+
+set win32_lock_ok [list]
+set win32_lock_error [list]
+set delay1 25
+while {1} {
+  lock_win32_file test.db 0 $::delay1
+  set ::log {}
+  set rc [catch {db eval {SELECT x, length(y) FROM t1 ORDER BY rowid}} msg]
+  if {$rc} {
+    lappend win32_lock_error $::delay1
+    do_test win32lock-1.2-$delay1-error {
+       set ::msg
+    } {disk I/O error}
+  } else {
+    lappend win32_lock_ok $::delay1
+    do_test win32lock-1.2-$delay1-ok {
+       set ::msg
+    } {1 100000 2 50000 3 25000 4 12500}
+    if {[info exists ::log] && $::log!=""} {
+      do_test win32lock-1.2-$delay1-log1 {
+        regsub {\d+} $::log # x
+        regsub { at line \d+} $x "" x
+        set x
+      } {{delayed #ms for lock/sharing conflict}}
+    }
+  }
+  if {[llength $win32_lock_ok] && [llength $win32_lock_error]} break
+  incr delay1 25
+  if {$delay1 > 12500} {
+    puts "Timed out waiting for \"ok\" and \"error\" results."
+    break
+  }
+  sqlite3_sleep 10
+}
+
+do_test win32lock-2.0 {
+  file_control_win32_av_retry db -1 -1
+} {0 10 25}
+do_test win32lock-2.1 {
+  file_control_win32_av_retry db 1 1
+} {0 1 1}
+
+#
+# NOTE: It is known that the win32lock-2.2-* tests may fail if the system is
+#       experiencing heavy load (i.e. they are very timing sensitive).  This is
+#       primarily due to the AV retry delay being set to 1 millisecond in the
+#       win32lock-2.1 test (above).  While it is important to test this corner
+#       case for the AV retry logic, a failure of this test should probably not
+#       be interpreted as a bug in SQLite or these test cases.
+#
+set win32_lock_ok [list]
+set win32_lock_error [list]
+set delay1 1
+while {1} {
+  lock_win32_file test.db 0 $::delay1
+  set ::log {}
+  set rc [catch {db eval {SELECT x, length(y) FROM t1 ORDER BY rowid}} msg]
+  if {$rc} {
+    lappend win32_lock_error $::delay1
+    do_test win32lock-2.2-$delay1-error {
+       set ::msg
+    } {disk I/O error}
+  } else {
+    lappend win32_lock_ok $::delay1
+    do_test win32lock-2.2-$delay1-ok {
+       set ::msg
+    } {1 100000 2 50000 3 25000 4 12500}
+    if {[info exists ::log] && $::log!=""} {
+      do_test win32lock-2.2-$delay1-log1 {
+        regsub {\d+} $::log # x
+        regsub { at line \d+} $x "" x
+        set x
+      } {{delayed #ms for lock/sharing conflict}}
+    }
+  }
+  if {[llength $win32_lock_ok] && [llength $win32_lock_error]} break
+  incr delay1 1
+  if {$delay1 > 500} {
+    puts "Timed out waiting for \"ok\" and \"error\" results."
+    break
+  }
+  sqlite3_sleep 10
+}
+
+file_control_win32_av_retry db 10 25
+sqlite3_test_control_pending_byte $old_pending_byte
+db close
+forcedelete test.db
+
+sqlite3 db test.db
+sqlite3 db2 test.db
+
+do_test win32lock-3.0 {
+  db eval {
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(1);
+    INSERT INTO t1 VALUES(2);
+    INSERT INTO t1 VALUES(3);
+  }
+} {}
+
+do_test win32lock-3.1 {
+  db eval {
+    BEGIN EXCLUSIVE;
+    INSERT INTO t1 VALUES(4);
+  }
+} {}
+
+do_test win32lock-3.2 {
+  catchsql {
+    BEGIN EXCLUSIVE;
+    INSERT INTO t1 VALUES(5);
+    COMMIT;
+  } db2
+} {1 {database is locked}}
+
+do_test win32lock-3.3 {
+  db eval {
+    COMMIT;
+  }
+} {}
+
+do_test win32lock-3.4 {
+  set handle [lindex [file_control_win32_set_handle db 0] end]
+  list [catchsql {
+    BEGIN EXCLUSIVE;
+    INSERT INTO t1 VALUES(6);
+    COMMIT;
+  }] [file_control_win32_set_handle db $handle] [sqlite3_extended_errcode db]
+} {{1 {disk I/O error}} {0 0} SQLITE_IOERR_LOCK}
+
+db2 close
+db close
+sqlite3_shutdown
+test_sqlite3_log
+sqlite3_initialize
+finish_test
diff --git a/test/win32longpath.test b/test/win32longpath.test
new file mode 100644
index 0000000000000000000000000000000000000000..9ffea775e779665d6a122d73f00c9eb1282bf31e
--- /dev/null
+++ b/test/win32longpath.test
@@ -0,0 +1,146 @@
+# 2013 August 27
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the file name handling provided
+# by the "win32-longpath" VFS.
+#
+
+if {$tcl_platform(platform)!="windows"} return
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix win32longpath
+
+do_test 1.0 {
+  file_control_vfsname db
+} win32
+
+db close
+set rawPath [get_pwd]
+set path [file nativename $rawPath]
+sqlite3 db [file join $path test.db] -vfs win32-longpath
+
+do_test 1.1 {
+  file_control_vfsname db
+} win32-longpath
+
+do_test 1.2 {
+  db eval {
+    BEGIN EXCLUSIVE;
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(1);
+    INSERT INTO t1 VALUES(2);
+    INSERT INTO t1 VALUES(3);
+    INSERT INTO t1 VALUES(4);
+    SELECT x FROM t1 ORDER BY x;
+    COMMIT;
+  }
+} {1 2 3 4}
+
+set longPath(1) \\\\?\\$path\\[pid]
+set uriPath(1a) %5C%5C%3F%5C$path\\[pid]
+set uriPath(1b) %5C%5C%3F%5C$rawPath/[pid]
+
+file mkdir $longPath(1)
+
+set longPath(2) $longPath(1)\\[string repeat X 255]
+set uriPath(2a) $uriPath(1a)\\[string repeat X 255]
+set uriPath(2b) $uriPath(1b)/[string repeat X 255]
+
+file mkdir $longPath(2)
+
+set longPath(3) $longPath(2)\\[string repeat Y 255]
+set uriPath(3a) $uriPath(2a)\\[string repeat Y 255]
+set uriPath(3b) $uriPath(2b)/[string repeat Y 255]
+
+file mkdir $longPath(3)
+
+set fileName $longPath(3)\\test.db
+
+set uri(1a) file:$uriPath(3a)\\test.db
+set uri(1b) file:$uriPath(3b)/test.db
+set uri(1c) file:///$uriPath(3a)\\test.db
+set uri(1d) file:///$uriPath(3b)/test.db
+set uri(1e) file://localhost/$uriPath(3a)\\test.db
+set uri(1f) file://localhost/$uriPath(3b)/test.db
+
+do_test 1.3 {
+  list [catch {sqlite3 db2 [string range $fileName 4 end]} msg] $msg
+} {1 {unable to open database file}}
+
+sqlite3 db3 $fileName -vfs win32-longpath
+
+do_test 1.4 {
+  db3 eval {
+    BEGIN EXCLUSIVE;
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(5);
+    INSERT INTO t1 VALUES(6);
+    INSERT INTO t1 VALUES(7);
+    INSERT INTO t1 VALUES(8);
+    SELECT x FROM t1 ORDER BY x;
+    COMMIT;
+  }
+} {5 6 7 8}
+
+db3 close
+
+sqlite3 db3 $fileName -vfs win32-longpath
+
+do_test 1.5 {
+  db3 eval {
+    PRAGMA journal_mode = WAL;
+  }
+} {wal}
+
+do_test 1.6 {
+  db3 eval {
+    BEGIN EXCLUSIVE;
+    INSERT INTO t1 VALUES(9);
+    INSERT INTO t1 VALUES(10);
+    INSERT INTO t1 VALUES(11);
+    INSERT INTO t1 VALUES(12);
+    SELECT x FROM t1 ORDER BY x;
+    COMMIT;
+  }
+} {5 6 7 8 9 10 11 12}
+
+db3 close
+
+foreach tn {1a 1b 1c 1d 1e 1f} {
+  sqlite3 db3 $uri($tn) -vfs win32-longpath -uri 1 -translatefilename 0
+
+  do_test 1.7.$tn {
+    db3 eval {
+      SELECT x FROM t1 ORDER BY x;
+    }
+  } {5 6 7 8 9 10 11 12}
+
+  db3 close
+}
+
+# These over-length file and directory names are difficult to delete.
+# The "file delete -force" might not work, depending on the TCL build
+# being used.  So first try to delete using the windows rmdir command.
+#
+set fd [open cleanup.bat w]
+puts $fd "rmdir /q /s $longPath(1)"
+close $fd
+if {[catch {exec cleanup.bat} msg]} {
+  puts "Command \[cleanup.bat\] returns $msg"
+}
+
+file delete -force $fileName
+file delete -force $longPath(3)
+file delete -force $longPath(2)
+file delete -force $longPath(1)
+
+finish_test
diff --git a/test/win32nolock.test b/test/win32nolock.test
new file mode 100644
index 0000000000000000000000000000000000000000..8128860392f762072c6aca6e88de0cb40eabd5a6
--- /dev/null
+++ b/test/win32nolock.test
@@ -0,0 +1,126 @@
+# 2016 July 8
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+
+if {$tcl_platform(platform)!="windows"} return
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix win32nolock
+
+do_test win32nolock-1.0 {
+  sqlite3 db test.db
+  execsql {
+    CREATE TABLE t1(a, b);
+    BEGIN;
+    INSERT INTO t1 VALUES(1, 2);
+  }
+} {}
+
+do_test win32nolock-1.1 {
+  execsql COMMIT
+  catchsql { SELECT * FROM t1 }
+} {0 {1 2}}
+
+db close
+
+do_test win32nolock-1.2 {
+  sqlite3 db test.db -vfs win32-none
+  sqlite3 db2 test.db -vfs win32-none
+  execsql { PRAGMA mmap_size = 0 } db2
+  execsql {
+    BEGIN;
+    INSERT INTO t1 VALUES(3, 4);
+  }
+} {}
+
+do_test win32nolock-1.3 {
+  execsql { SELECT * FROM t1 }
+} {1 2 3 4}
+
+do_test win32nolock-1.4 {
+  execsql { SELECT * FROM t1; } db2
+} {1 2}
+
+do_test win32nolock-1.5 {
+  execsql {
+    BEGIN;
+    SELECT * FROM t1;
+  } db2
+} {1 2}
+
+do_test win32nolock-1.6 {
+  execsql COMMIT
+  execsql {SELECT * FROM t1} db2
+} {1 2}
+
+ifcapable memorymanage {
+  do_test win32nolock-1.7 {
+    sqlite3_release_memory 1000000
+    execsql {SELECT * FROM t1} db2
+  } {1 2 3 4}
+}
+
+do_test win32nolock-1.8 {
+  db close
+  db2 close
+} {}
+
+do_test win32nolock-1.9.1 {
+  sqlite3 db test.db
+  sqlite3 db2 test.db
+  list [catchsql { BEGIN EXCLUSIVE; } db] \
+      [catchsql { BEGIN EXCLUSIVE; } db2]
+} {{0 {}} {1 {database is locked}}}
+
+do_test win32nolock-1.9.2 {
+  db close
+  db2 close
+} {}
+
+do_test win32nolock-1.10.1 {
+  sqlite3 db test.db -vfs win32-none
+  sqlite3 db2 test.db
+  list [catchsql { BEGIN EXCLUSIVE; } db] \
+      [catchsql { BEGIN EXCLUSIVE; } db2]
+} {{0 {}} {0 {}}}
+
+do_test win32nolock-1.10.2 {
+  db close
+  db2 close
+} {}
+
+do_test win32nolock-1.11.1 {
+  sqlite3 db test.db
+  sqlite3 db2 test.db -vfs win32-none
+  list [catchsql { BEGIN EXCLUSIVE; } db] \
+      [catchsql { BEGIN EXCLUSIVE; } db2]
+} {{0 {}} {0 {}}}
+
+do_test win32nolock-1.11.2 {
+  db close
+  db2 close
+} {}
+
+do_test win32nolock-1.12.1 {
+  sqlite3 db test.db -vfs win32-none
+  sqlite3 db2 test.db -vfs win32-none
+  list [catchsql { BEGIN EXCLUSIVE; } db] \
+      [catchsql { BEGIN EXCLUSIVE; } db2]
+} {{0 {}} {0 {}}}
+
+do_test win32nolock-1.12.2 {
+  db close
+  db2 close
+} {}
+
+finish_test
diff --git a/test/window1.test b/test/window1.test
new file mode 100644
index 0000000000000000000000000000000000000000..457852c145eaa4aff976438f975434d9f57d0d6f
--- /dev/null
+++ b/test/window1.test
@@ -0,0 +1,2397 @@
+# 2018 May 8
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix window1
+
+ifcapable !windowfunc {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b, c, d);
+  INSERT INTO t1 VALUES(1, 2, 3, 4);
+  INSERT INTO t1 VALUES(5, 6, 7, 8);
+  INSERT INTO t1 VALUES(9, 10, 11, 12);
+}
+
+do_execsql_test 1.1 {
+  SELECT sum(b) OVER () FROM t1
+} {18 18 18}
+
+do_execsql_test 1.2 {
+  SELECT a, sum(b) OVER () FROM t1
+} {1 18 5 18 9 18}
+
+do_execsql_test 1.3 {
+  SELECT a, 4 + sum(b) OVER () FROM t1
+} {1 22 5 22 9 22}
+
+do_execsql_test 1.4 {
+  SELECT a + 4 + sum(b) OVER () FROM t1
+} {23 27 31}
+
+do_execsql_test 1.5 {
+  SELECT a, sum(b) OVER (PARTITION BY c) FROM t1
+} {1 2 5 6 9 10}
+
+foreach {tn sql} {
+  1 "SELECT sum(b) OVER () FROM t1"
+  2 "SELECT sum(b) OVER (PARTITION BY c) FROM t1"
+  3 "SELECT sum(b) OVER (ORDER BY c) FROM t1"
+  4 "SELECT sum(b) OVER (PARTITION BY d ORDER BY c) FROM t1"
+  5 "SELECT sum(b) FILTER (WHERE a>0) OVER (PARTITION BY d ORDER BY c) FROM t1"
+  6 "SELECT sum(b) OVER (ORDER BY c RANGE UNBOUNDED PRECEDING) FROM t1"
+  7 "SELECT sum(b) OVER (ORDER BY c ROWS 45 PRECEDING) FROM t1"
+  8 "SELECT sum(b) OVER (ORDER BY c RANGE CURRENT ROW) FROM t1"
+  9 "SELECT sum(b) OVER (ORDER BY c RANGE BETWEEN UNBOUNDED PRECEDING 
+     AND CURRENT ROW) FROM t1"
+ 10 "SELECT sum(b) OVER (ORDER BY c ROWS BETWEEN UNBOUNDED PRECEDING 
+     AND UNBOUNDED FOLLOWING) FROM t1"
+} {
+  do_test 2.$tn { lindex [catchsql $sql] 0 } 0
+}
+
+foreach {tn sql} {
+  1 "SELECT * FROM t1 WHERE sum(b) OVER ()"
+  2 "SELECT * FROM t1 GROUP BY sum(b) OVER ()"
+  3 "SELECT * FROM t1 GROUP BY a HAVING sum(b) OVER ()"
+} {
+  do_catchsql_test 3.$tn $sql {1 {misuse of window function sum()}}
+}
+
+do_execsql_test 4.0 {
+  CREATE TABLE t2(a, b, c);
+  INSERT INTO t2 VALUES(0, 0, 0);
+  INSERT INTO t2 VALUES(1, 1, 1);
+  INSERT INTO t2 VALUES(2, 0, 2);
+  INSERT INTO t2 VALUES(3, 1, 0);
+  INSERT INTO t2 VALUES(4, 0, 1);
+  INSERT INTO t2 VALUES(5, 1, 2);
+  INSERT INTO t2 VALUES(6, 0, 0);
+}
+
+do_execsql_test 4.1 {
+  SELECT a, sum(a) OVER (PARTITION BY b) FROM t2;
+} {
+  0 12  2 12  4 12  6 12   1  9  3  9  5  9 
+}
+
+do_execsql_test 4.2 {
+  SELECT a, sum(a) OVER (PARTITION BY b) FROM t2 ORDER BY a;
+} {
+  0 12  1  9  2 12  3  9  4 12  5  9 6 12   
+}
+
+do_execsql_test 4.3 {
+  SELECT a, sum(a) OVER () FROM t2 ORDER BY a;
+} {
+  0 21  1  21  2 21  3  21  4 21  5  21 6 21   
+}
+
+do_execsql_test 4.4 {
+  SELECT a, sum(a) OVER (ORDER BY a) FROM t2;
+} {
+  0 0  1 1  2 3  3 6  4 10  5 15  6 21
+}
+
+do_execsql_test 4.5 {
+  SELECT a, sum(a) OVER (PARTITION BY b ORDER BY a) FROM t2 ORDER BY a
+} {
+  0 0  1 1  2 2  3 4  4 6  5 9  6 12
+}
+
+do_execsql_test 4.6 {
+  SELECT a, sum(a) OVER (PARTITION BY c ORDER BY a) FROM t2 ORDER BY a
+} {
+  0 0  1 1  2 2  3 3  4 5  5 7  6 9
+}
+
+do_execsql_test 4.7 {
+  SELECT a, sum(a) OVER (PARTITION BY b ORDER BY a DESC) FROM t2 ORDER BY a
+} {
+  0 12  1 9  2 12  3 8  4 10  5 5  6 6
+}
+
+do_execsql_test 4.8 {
+  SELECT a, 
+    sum(a) OVER (PARTITION BY b ORDER BY a DESC),
+    sum(a) OVER (PARTITION BY c ORDER BY a) 
+  FROM t2 ORDER BY a
+} {
+  0  12  0
+  1   9  1 
+  2  12  2 
+  3   8  3 
+  4  10  5 
+  5   5  7 
+  6   6  9
+}
+
+do_execsql_test 4.9 {
+  SELECT a, 
+    sum(a) OVER (ORDER BY a), 
+    avg(a) OVER (ORDER BY a) 
+  FROM t2 ORDER BY a
+} {
+  0  0       0.0
+  1  1       0.5
+  2  3       1.0
+  3  6       1.5
+  4  10      2.0
+  5  15      2.5
+  6  21      3.0
+}
+
+do_execsql_test 4.10.1 {
+  SELECT a, 
+    count() OVER (ORDER BY a DESC),
+    string_agg(a, '.') OVER (ORDER BY a DESC) 
+  FROM t2 ORDER BY a DESC
+} {
+  6 1 6
+  5 2 6.5
+  4 3 6.5.4
+  3 4 6.5.4.3
+  2 5 6.5.4.3.2
+  1 6 6.5.4.3.2.1
+  0 7 6.5.4.3.2.1.0
+}
+
+do_execsql_test 4.10.2 {
+  SELECT a, 
+    count(*) OVER (ORDER BY a DESC),
+    group_concat(a, '.') OVER (ORDER BY a DESC) 
+  FROM t2 ORDER BY a DESC
+} {
+  6 1 6
+  5 2 6.5
+  4 3 6.5.4
+  3 4 6.5.4.3
+  2 5 6.5.4.3.2
+  1 6 6.5.4.3.2.1
+  0 7 6.5.4.3.2.1.0
+}
+
+do_catchsql_test 5.1 {
+  SELECT ntile(0) OVER (ORDER BY a) FROM t2;
+} {1 {argument of ntile must be a positive integer}}
+do_catchsql_test 5.2 {
+  SELECT ntile(-1) OVER (ORDER BY a) FROM t2;
+} {1 {argument of ntile must be a positive integer}}
+do_catchsql_test 5.3 {
+  SELECT ntile('zbc') OVER (ORDER BY a) FROM t2;
+} {1 {argument of ntile must be a positive integer}}
+do_execsql_test 5.4 {
+  CREATE TABLE t4(a, b);
+  SELECT ntile(1) OVER (ORDER BY a) FROM t4;
+} {}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 6.1 {
+  CREATE TABLE t1(x);
+  INSERT INTO t1 VALUES(7), (6), (5), (4), (3), (2), (1);
+
+  CREATE TABLE t2(x);
+  INSERT INTO t2 VALUES('b'), ('a');
+
+  SELECT x, count(*) OVER (ORDER BY x) FROM t1;
+} {1 1 2 2 3 3 4 4 5 5 6 6 7 7}
+
+do_execsql_test 6.2 {
+  SELECT * FROM t2, (SELECT x, count(*) OVER (ORDER BY x) FROM t1)
+  ORDER BY 1, 2;
+} {
+  a 1 1 a 2 2 a 3 3 a 4 4 a 5 5 a 6 6 a 7 7
+  b 1 1 b 2 2 b 3 3 b 4 4 b 5 5 b 6 6 b 7 7
+}
+
+do_catchsql_test 6.3 {
+  SELECT x, lag(x) FILTER (WHERE (x%2)=0) OVER w FROM t1 
+  WINDOW w AS (ORDER BY x)
+} {1 {FILTER clause may only be used with aggregate window functions}}
+ 
+#-------------------------------------------------------------------------
+# Attempt to use a window function as an aggregate. And other errors.
+#
+reset_db
+do_execsql_test 7.0 {
+  CREATE TABLE t1(x, y);
+  INSERT INTO t1 VALUES(1, 2);
+  INSERT INTO t1 VALUES(3, 4);
+  INSERT INTO t1 VALUES(5, 6);
+  INSERT INTO t1 VALUES(7, 8);
+  INSERT INTO t1 VALUES(9, 10);
+}
+
+do_catchsql_test 7.1.1 {
+  SELECT nth_value(x, 1) FROM t1;
+} {1 {misuse of window function nth_value()}}
+do_catchsql_test 7.1.2 {
+  SELECT * FROM t1 WHERE nth_value(x, 1) OVER (ORDER BY y);
+} {1 {misuse of window function nth_value()}}
+do_catchsql_test 7.1.3 {
+  SELECT count(*) FROM t1 GROUP BY y HAVING nth_value(x, 1) OVER (ORDER BY y);
+} {1 {misuse of window function nth_value()}}
+do_catchsql_test 7.1.4 {
+  SELECT count(*) FROM t1 GROUP BY nth_value(x, 1) OVER (ORDER BY y);
+} {1 {misuse of window function nth_value()}}
+do_catchsql_test 7.1.5 {
+  SELECT count(*) FROM t1 LIMIT nth_value(x, 1) OVER ();
+} {1 {no such column: x}}
+do_catchsql_test 7.1.6 {
+  SELECT trim(x) OVER (ORDER BY y) FROM t1;
+} {1 {trim() may not be used as a window function}}
+do_catchsql_test 7.1.7 {
+  SELECT max(x) OVER abc FROM t1 WINDOW def AS (ORDER BY y);
+} {1 {no such window: abc}}
+do_catchsql_test 7.1.8 {
+  SELECT row_number(x) OVER () FROM t1
+} {1 {wrong number of arguments to function row_number()}}
+
+do_execsql_test 7.2 {
+  SELECT 
+    lead(y) OVER win, 
+    lead(y, 2) OVER win, 
+    lead(y, 3, 'default') OVER win
+  FROM t1
+  WINDOW win AS (ORDER BY x)
+} {
+  4 6 8   6 8 10   8 10 default   10 {} default   {} {} default
+}
+
+do_execsql_test 7.3 {
+  SELECT row_number() OVER (ORDER BY x) FROM t1
+} {1 2 3 4 5}
+
+do_execsql_test 7.4 {
+  SELECT 
+    row_number() OVER win,
+    lead(x) OVER win
+  FROM t1
+  WINDOW win AS (ORDER BY x ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+} {1 3  2 5  3 7  4 9   5 {}}
+
+#-------------------------------------------------------------------------
+# Attempt to use a window function in a view.
+#
+do_execsql_test 8.0 {
+  CREATE TABLE t3(a, b, c);
+
+  WITH s(i) AS ( VALUES(1) UNION ALL SELECT i+1 FROM s WHERE i<6 )
+  INSERT INTO t3 SELECT i, i, i FROM s;
+
+  CREATE VIEW v1 AS SELECT
+    sum(b) OVER (ORDER BY c),
+    min(b) OVER (ORDER BY c),
+    max(b) OVER (ORDER BY c)
+  FROM t3;
+
+  CREATE VIEW v2 AS SELECT
+    sum(b) OVER win,
+    min(b) OVER win,
+    max(b) OVER win
+  FROM t3
+  WINDOW win AS (ORDER BY c);
+}
+
+do_execsql_test 8.1.1 {
+  SELECT * FROM v1
+} {1 1 1  3 1 2  6 1 3  10 1 4  15 1 5  21 1 6}
+do_execsql_test 8.1.2 {
+  SELECT * FROM v2
+} {1 1 1  3 1 2  6 1 3  10 1 4  15 1 5  21 1 6}
+
+db close
+sqlite3 db test.db
+do_execsql_test 8.2.1 {
+  SELECT * FROM v1
+} {1 1 1  3 1 2  6 1 3  10 1 4  15 1 5  21 1 6}
+do_execsql_test 8.2.2 {
+  SELECT * FROM v2
+} {1 1 1  3 1 2  6 1 3  10 1 4  15 1 5  21 1 6}
+
+#-------------------------------------------------------------------------
+# Attempt to use a window function in a trigger.
+#
+do_execsql_test 9.0 {
+  CREATE TABLE t4(x, y);
+  INSERT INTO t4 VALUES(1, 'g');
+  INSERT INTO t4 VALUES(2, 'i');
+  INSERT INTO t4 VALUES(3, 'l');
+  INSERT INTO t4 VALUES(4, 'g');
+  INSERT INTO t4 VALUES(5, 'a');
+
+  CREATE TABLE t5(x, y, m);
+  CREATE TRIGGER t4i AFTER INSERT ON t4 BEGIN
+    DELETE FROM t5;
+    INSERT INTO t5 
+      SELECT x, y, max(y) OVER xyz FROM t4
+      WINDOW xyz AS (PARTITION BY (x%2) ORDER BY x);
+  END;
+}
+
+do_execsql_test 9.1.1 {
+  SELECT x, y, max(y) OVER xyz FROM t4
+      WINDOW xyz AS (PARTITION BY (x%2) ORDER BY x) ORDER BY 1
+} {1 g g   2 i i   3 l l   4 g i   5 a l}
+
+do_execsql_test 9.1.2 {
+  INSERT INTO t4 VALUES(6, 'm');
+  SELECT x, y, max(y) OVER xyz FROM t4
+      WINDOW xyz AS (PARTITION BY (x%2) ORDER BY x) ORDER BY 1
+} {1 g g   2 i i   3 l l   4 g i   5 a l   6 m m}
+
+do_execsql_test 9.1.3 {
+  SELECT * FROM t5 ORDER BY 1
+} {1 g g   2 i i   3 l l   4 g i   5 a l   6 m m}
+
+do_execsql_test 9.2 {
+  WITH aaa(x, y, z) AS (
+    SELECT x, y, max(y) OVER xyz FROM t4
+    WINDOW xyz AS (PARTITION BY (x%2) ORDER BY x)
+  )
+  SELECT * FROM aaa ORDER BY 1;
+} {1 g g   2 i i   3 l l   4 g i   5 a l   6 m m}
+
+do_execsql_test 9.3 {
+  WITH aaa(x, y, z) AS (
+    SELECT x, y, max(y) OVER xyz FROM t4
+    WINDOW xyz AS (ORDER BY x)
+  )
+  SELECT *, min(z) OVER (ORDER BY x) FROM aaa ORDER BY 1;
+} {1 g g g   2 i i g   3 l l g   4 g l g   5 a l g   6 m m g}
+
+do_catchsql_test 9.4 {
+  -- 2021-04-17 dbsqlfuzz d9cf66100064952b66951845dfab41de1c124611
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a,b,c,d);
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t2(x,y);
+  CREATE TRIGGER r1 AFTER INSERT ON t1 BEGIN
+    INSERT INTO t2(x,y)
+      SELECT a, max(d) OVER w1 FROM t1
+        WINDOW w1 AS (PARTITION BY EXISTS(SELECT 1 FROM t1 WHERE c=?1) );
+  END;
+} {1 {trigger cannot use variables}}
+
+do_catchsql_test 9.4.2 {
+  CREATE TRIGGER r1 AFTER INSERT ON t1 BEGIN
+    INSERT INTO t1(a,b) 
+        SELECT a, max(d) OVER w1 FROM t1
+        WINDOW w1 AS (
+          ORDER BY a ROWS BETWEEN ? PRECEDING AND UNBOUNDED FOLLOWING
+        );
+  END;
+} {1 {trigger cannot use variables}}
+do_catchsql_test 9.4.3 {
+  CREATE TRIGGER r1 AFTER INSERT ON t1 BEGIN
+    INSERT INTO t1(a,b) 
+        SELECT a, max(d) OVER w1 FROM t1
+        WINDOW w1 AS (
+          ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND ? FOLLOWING
+        );
+  END;
+} {1 {trigger cannot use variables}}
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test 10.0 {
+  CREATE TABLE sales(emp TEXT PRIMARY KEY, region, total);
+  INSERT INTO sales VALUES
+      ('Alice',     'North', 34),
+      ('Frank',     'South', 22),
+      ('Charles',   'North', 45),
+      ('Darrell',   'South', 8),
+      ('Grant',     'South', 23),
+      ('Brad' ,     'North', 22),
+      ('Elizabeth', 'South', 99),
+      ('Horace',    'East',   1);
+}
+
+# Best two salespeople from each region
+#
+do_execsql_test 10.1 {
+  SELECT emp, region, total FROM (
+    SELECT 
+      emp, region, total,
+      row_number() OVER (PARTITION BY region ORDER BY total DESC) AS rank
+    FROM sales
+  ) WHERE rank<=2 ORDER BY region, total DESC
+} {
+  Horace      East     1
+  Charles     North   45
+  Alice       North   34
+  Elizabeth   South   99
+  Grant       South   23
+}
+
+do_execsql_test 10.2 {
+  SELECT emp, region, sum(total) OVER win FROM sales
+  WINDOW win AS (PARTITION BY region ORDER BY total)
+} {
+  Horace East       1  
+  Brad North       22 
+  Alice North      56 
+  Charles North   101 
+  Darrell South     8 
+  Frank South      30 
+  Grant South      53 
+  Elizabeth South 152
+}
+
+do_execsql_test 10.3 {
+  SELECT emp, region, sum(total) OVER win FROM sales
+  WINDOW win AS (PARTITION BY region ORDER BY total)
+  LIMIT 5
+} {
+  Horace East       1  
+  Brad North       22 
+  Alice North      56 
+  Charles North   101 
+  Darrell South     8 
+}
+
+do_execsql_test 10.4 {
+  SELECT emp, region, sum(total) OVER win FROM sales
+  WINDOW win AS (PARTITION BY region ORDER BY total)
+  LIMIT 5 OFFSET 2
+} {
+  Alice North      56 
+  Charles North   101 
+  Darrell South     8 
+  Frank South      30 
+  Grant South      53 
+}
+
+do_execsql_test 10.5 {
+  SELECT emp, region, sum(total) OVER win FROM sales
+  WINDOW win AS (
+    PARTITION BY region ORDER BY total 
+    ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+  )
+} {
+  Horace East       1  
+  Brad North      101
+  Alice North      79 
+  Charles North    45 
+  Darrell South   152
+  Frank South     144 
+  Grant South     122 
+  Elizabeth South  99
+}
+
+do_execsql_test 10.6 {
+  SELECT emp, region, sum(total) OVER win FROM sales
+  WINDOW win AS (
+    PARTITION BY region ORDER BY total 
+    ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+  ) LIMIT 5 OFFSET 2
+} {
+  Alice North      79 
+  Charles North    45 
+  Darrell South   152
+  Frank South     144 
+  Grant South     122 
+}
+
+do_execsql_test 10.7 {
+  SELECT emp, region, (
+    SELECT sum(total) OVER (
+      ORDER BY total RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING
+    ) || outer.emp FROM sales
+  ) FROM sales AS outer;
+} {
+  Alice North 254Alice 
+  Frank South 254Frank 
+  Charles North 254Charles 
+  Darrell South 254Darrell 
+  Grant South 254Grant 
+  Brad North 254Brad 
+  Elizabeth South 254Elizabeth 
+  Horace East 254Horace
+}
+
+do_execsql_test 10.8 {
+  SELECT emp, region, (
+    SELECT sum(total) FILTER (WHERE sales.emp!=outer.emp) OVER (
+      ORDER BY total RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING
+    ) FROM sales
+  ) FROM sales AS outer;
+} {
+  Alice North 220 
+  Frank South 232 
+  Charles North 209 
+  Darrell South 246
+  Grant South 231 
+  Brad North 232 
+  Elizabeth South 155 
+  Horace East 253
+}
+
+#-------------------------------------------------------------------------
+# Check that it is not possible to use a window function in a CREATE INDEX
+# statement.
+#
+do_execsql_test 11.0 { CREATE TABLE t6(a, b, c); }
+
+do_catchsql_test 11.1 {
+  CREATE INDEX t6i ON t6(a) WHERE sum(b) OVER ();
+} {1 {misuse of window function sum()}}
+do_catchsql_test 11.2 {
+  CREATE INDEX t6i ON t6(a) WHERE lead(b) OVER ();
+} {1 {misuse of window function lead()}}
+
+do_catchsql_test 11.3 {
+  CREATE INDEX t6i ON t6(sum(b) OVER ());
+} {1 {misuse of window function sum()}}
+do_catchsql_test 11.4 {
+  CREATE INDEX t6i ON t6(lead(b) OVER ());
+} {1 {misuse of window function lead()}}
+
+# 2018-09-17 ticket 510cde277783b5fb5de628393959849dff377eb3
+# Endless loop on a query with window functions and a limit
+#
+do_execsql_test 12.100 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(id INT, b VARCHAR, c VARCHAR);
+  INSERT INTO t1 VALUES(1, 'A', 'one');
+  INSERT INTO t1 VALUES(2, 'B', 'two');
+  INSERT INTO t1 VALUES(3, 'C', 'three');
+  INSERT INTO t1 VALUES(4, 'D', 'one');
+  INSERT INTO t1 VALUES(5, 'E', 'two');
+  SELECT id, b, lead(c,1) OVER(ORDER BY c) AS x 
+    FROM t1 WHERE id>1
+   ORDER BY b LIMIT 1;
+} {2 B two}
+do_execsql_test 12.110 {
+  INSERT INTO t1 VALUES(6, 'F', 'three');
+  INSERT INTO t1 VALUES(7, 'G', 'one');
+  SELECT id, b, lead(c,1) OVER(ORDER BY c) AS x
+    FROM t1 WHERE id>1
+   ORDER BY b LIMIT 2;
+} {2 B two 3 C three}
+
+#-------------------------------------------------------------------------
+
+do_execsql_test 13.1 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a int, b int);
+  INSERT INTO t1 VALUES(1,11);
+  INSERT INTO t1 VALUES(2,12);
+}
+
+do_execsql_test 13.2.1 {
+  SELECT a, rank() OVER(ORDER BY b) FROM t1;
+  SELECT a, rank() OVER(ORDER BY b DESC) FROM t1;
+} {
+  1 1   2 2   2 1   1 2
+}
+do_execsql_test 13.2.2 {
+  SELECT a, rank() OVER(ORDER BY b) FROM t1
+    UNION ALL
+  SELECT a, rank() OVER(ORDER BY b DESC) FROM t1;
+} {
+  1 1   2 2   2 1   1 2
+}
+do_execsql_test 13.3 {
+  SELECT a, rank() OVER(ORDER BY b) FROM t1
+    UNION 
+  SELECT a, rank() OVER(ORDER BY b DESC) FROM t1;
+} {
+  1 1   1 2   2 1   2 2  
+}
+
+do_execsql_test 13.4 {
+  SELECT a, rank() OVER(ORDER BY b) FROM t1
+    EXCEPT 
+  SELECT a, rank() OVER(ORDER BY b DESC) FROM t1;
+} {
+  1 1   2 2 
+}
+
+do_execsql_test 13.5 {
+  SELECT a, rank() OVER(ORDER BY b) FROM t1
+    INTERSECT 
+  SELECT a, rank() OVER(ORDER BY b DESC) FROM t1;
+} {}
+
+# 2018-12-06
+# https://www.sqlite.org/src/info/f09fcd17810f65f7
+# Assertion fault when window functions are used.
+#
+# Root cause is the query flattener invoking sqlite3ExprDup() on
+# expressions that contain subqueries with window functions.  The
+# sqlite3ExprDup() routine is not making correctly initializing
+# Select.pWin field of the subqueries.
+#
+sqlite3 db :memory:
+do_execsql_test 14.0 {
+  SELECT * FROM(
+    SELECT * FROM (SELECT 1 AS c) WHERE c IN (
+        SELECT (row_number() OVER()) FROM (VALUES (0))
+    )
+  );
+} {1}
+do_execsql_test 14.1 {
+  CREATE TABLE t1(x); INSERT INTO t1(x) VALUES(12345);
+  CREATE TABLE t2(c); INSERT INTO t2(c) VALUES(1);
+  SELECT y, y+1, y+2 FROM (
+    SELECT c IN (
+      SELECT (row_number() OVER()) FROM t1
+    ) AS y FROM t2
+  );
+} {1 2 3}
+
+# 2018-12-31
+# https://www.sqlite.org/src/info/d0866b26f83e9c55
+# Window function in correlated subquery causes assertion fault 
+#
+do_catchsql_test 15.0 {
+  WITH t(id, parent) AS (
+  SELECT CAST(1 AS INT), CAST(NULL AS INT)
+  UNION ALL
+  SELECT 2, NULL
+  UNION ALL
+  SELECT 3, 1
+  UNION ALL
+  SELECT 4, 1
+  UNION ALL
+  SELECT 5, 2
+  UNION ALL
+  SELECT 6, 2
+  ), q AS (
+  SELECT t.*, ROW_NUMBER() OVER (ORDER BY t.id) AS rn
+    FROM t
+   WHERE parent IS NULL
+   UNION ALL
+  SELECT t.*, ROW_NUMBER() OVER (ORDER BY t.id) AS rn
+    FROM q
+    JOIN t
+      ON t.parent = q.id
+  )
+  SELECT *
+    FROM q;
+} {1 {cannot use window functions in recursive queries}}
+do_execsql_test 15.1 {
+  DROP TABLE IF EXISTS t1;
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t1(x);
+  INSERT INTO t1 VALUES('a'), ('b'), ('c');
+  CREATE TABLE t2(a, b);
+  INSERT INTO t2 VALUES('X', 1), ('X', 2), ('Y', 2), ('Y', 3);
+  SELECT x, (
+    SELECT sum(b)
+      OVER (PARTITION BY a ROWS BETWEEN UNBOUNDED PRECEDING
+                                    AND UNBOUNDED FOLLOWING)
+    FROM t2 WHERE b<x
+  ) FROM t1;
+} {a 3 b 3 c 3}
+
+do_execsql_test 15.2 {
+  SELECT(
+    WITH c AS(
+      VALUES(1)
+    ) SELECT '' FROM c,c
+  ) x WHERE x+x;
+} {}
+
+#-------------------------------------------------------------------------
+
+do_execsql_test 16.0 {
+  CREATE TABLE t7(a,b); 
+  INSERT INTO t7(rowid, a, b) VALUES
+      (1, 1, 3),
+      (2, 10, 4),
+      (3, 100, 2);
+}
+
+do_execsql_test 16.1 {
+  SELECT rowid, sum(a) OVER (PARTITION BY b IN (SELECT rowid FROM t7)) FROM t7;
+} {
+  2 10
+  1 101
+  3 101
+}
+
+do_execsql_test 16.2 {
+  SELECT rowid, sum(a) OVER w1 FROM t7 
+  WINDOW w1 AS (PARTITION BY b IN (SELECT rowid FROM t7));
+} {
+  2 10
+  1 101
+  3 101
+}
+
+#-------------------------------------------------------------------------
+do_execsql_test 17.0 {
+  CREATE TABLE t8(a);
+  INSERT INTO t8 VALUES(1), (2), (3);
+}
+
+do_execsql_test 17.1 {
+  SELECT +sum(0) OVER () ORDER BY +sum(0) OVER ();
+} {0}
+
+do_execsql_test 17.2 {
+  select +sum(a) OVER () FROM t8 ORDER BY +sum(a) OVER () DESC;
+} {6 6 6}
+
+do_execsql_test 17.3 {
+  SELECT 10+sum(a) OVER (ORDER BY a) 
+  FROM t8 
+  ORDER BY 10+sum(a) OVER (ORDER BY a) DESC;
+} {16 13 11}
+
+
+#-------------------------------------------------------------------------
+# Test error cases from chaining window definitions.
+#
+reset_db
+do_execsql_test 18.0 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b TEXT, c TEXT, d INTEGER);
+  INSERT INTO t1 VALUES(1, 'odd',  'one',   1);
+  INSERT INTO t1 VALUES(2, 'even', 'two',   2);
+  INSERT INTO t1 VALUES(3, 'odd',  'three', 3);
+  INSERT INTO t1 VALUES(4, 'even', 'four',  4);
+  INSERT INTO t1 VALUES(5, 'odd',  'five',  5);
+  INSERT INTO t1 VALUES(6, 'even', 'six',   6);
+}
+
+foreach {tn sql error} {
+  1 {
+    SELECT c, sum(d) OVER win2 FROM t1
+      WINDOW win1 AS (ROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING), 
+             win2 AS (win1 ORDER BY b)
+  } {cannot override frame specification of window: win1}
+
+  2 {
+    SELECT c, sum(d) OVER win2 FROM t1
+      WINDOW win1 AS (),
+             win2 AS (win4 ORDER BY b)
+  } {no such window: win4}
+
+  3 {
+    SELECT c, sum(d) OVER win2 FROM t1
+      WINDOW win1 AS (),
+             win2 AS (win1 PARTITION BY d)
+  } {cannot override PARTITION clause of window: win1}
+
+  4 {
+    SELECT c, sum(d) OVER win2 FROM t1
+      WINDOW win1 AS (ORDER BY b),
+             win2 AS (win1 ORDER BY d)
+  } {cannot override ORDER BY clause of window: win1}
+} {
+  do_catchsql_test 18.1.$tn $sql [list 1 $error]
+}
+
+foreach {tn sql error} {
+  1 {
+    SELECT c, sum(d) OVER (win1 ORDER BY b) FROM t1
+      WINDOW win1 AS (ROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING)
+  } {cannot override frame specification of window: win1}
+
+  2 {
+    SELECT c, sum(d) OVER (win4 ORDER BY b) FROM t1
+      WINDOW win1 AS ()
+  } {no such window: win4}
+
+  3 {
+    SELECT c, sum(d) OVER (win1 PARTITION BY d) FROM t1
+      WINDOW win1 AS ()
+  } {cannot override PARTITION clause of window: win1}
+
+  4 {
+    SELECT c, sum(d) OVER (win1 ORDER BY d) FROM t1
+      WINDOW win1 AS (ORDER BY b)
+  } {cannot override ORDER BY clause of window: win1}
+} {
+  do_catchsql_test 18.2.$tn $sql [list 1 $error]
+}
+
+do_execsql_test 18.3.1 {
+  SELECT string_agg(c, '.') OVER (PARTITION BY b ORDER BY c)
+  FROM t1
+} {four four.six four.six.two five five.one five.one.three}
+
+do_execsql_test 18.3.2 {
+  SELECT group_concat(c, '.') OVER (win1 ORDER BY c)
+  FROM t1
+  WINDOW win1 AS (PARTITION BY b)
+} {four four.six four.six.two five five.one five.one.three}
+
+do_execsql_test 18.3.3 {
+  SELECT string_agg(c, '.') OVER win2
+  FROM t1
+  WINDOW win1 AS (PARTITION BY b),
+         win2 AS (win1 ORDER BY c)
+} {four four.six four.six.two five five.one five.one.three}
+
+do_execsql_test 18.3.4 {
+  SELECT group_concat(c, '.') OVER (win2)
+  FROM t1
+  WINDOW win1 AS (PARTITION BY b),
+         win2 AS (win1 ORDER BY c)
+} {four four.six four.six.two five five.one five.one.three}
+
+do_execsql_test 18.3.5 {
+  SELECT string_agg(c, '.') OVER win5
+  FROM t1
+  WINDOW win1 AS (PARTITION BY b),
+         win2 AS (win1),
+         win3 AS (win2),
+         win4 AS (win3),
+         win5 AS (win4 ORDER BY c)
+} {four four.six four.six.two five five.one five.one.three}
+
+#-------------------------------------------------------------------------
+# Test RANGE <expr> PRECEDING/FOLLOWING when there are string, blob
+# and NULL values in the dataset.
+#
+reset_db
+do_execsql_test 19.0 {
+  CREATE TABLE t1(a, b);
+  INSERT INTO t1 VALUES
+    (1, 1), (2, 2), (3, 3), (4, 4), (5, 5),
+    ('a', 6), ('b', 7), ('c', 8), ('d', 9), ('e', 10);
+}
+do_execsql_test 19.1 {
+  SELECT a, sum(b) OVER (ORDER BY a) FROM t1;
+} {1 1  2 3  3 6  4 10  5 15  a 21 b 28 c 36 d 45 e 55}
+
+do_execsql_test 19.2.1 {
+  SELECT a, sum(b) OVER (
+    ORDER BY a RANGE BETWEEN 1 PRECEDING AND 1 FOLLOWING
+  ) FROM t1;
+} {1 3 2 6 3 9 4 12 5 9 a 6 b 7 c 8 d 9 e 10}
+do_execsql_test 19.2.2 {
+  SELECT a, sum(b) OVER (
+    ORDER BY a DESC RANGE BETWEEN 1 PRECEDING AND 1 FOLLOWING
+  ) FROM t1 ORDER BY a ASC;
+} {1 3 2 6 3 9 4 12 5 9 a 6 b 7 c 8 d 9 e 10}
+
+do_execsql_test 19.3.1 {
+  SELECT a, sum(b) OVER (
+    ORDER BY a RANGE BETWEEN 2 PRECEDING AND 1 FOLLOWING
+  ) FROM t1;
+} {1 3 2 6 3 10 4 14 5 12 a 6 b 7 c 8 d 9 e 10}
+do_execsql_test 19.3.2 {
+  SELECT a, sum(b) OVER (
+    ORDER BY a DESC RANGE BETWEEN 1 PRECEDING AND 2 FOLLOWING
+  ) FROM t1 ORDER BY a ASC;
+} {1 3 2 6 3 10 4 14 5 12 a 6 b 7 c 8 d 9 e 10}
+
+
+reset_db
+do_execsql_test 20.0 {
+  CREATE TABLE t1(a, b);
+  INSERT INTO t1 VALUES
+    (NULL, 100), (NULL, 100), 
+    (1, 1), (2, 2), (3, 3), (4, 4), (5, 5),
+    ('a', 6), ('b', 7), ('c', 8), ('d', 9), ('e', 10);
+}
+do_execsql_test 20.1 {
+  SELECT a, sum(b) OVER (ORDER BY a) FROM t1;
+} {
+  {} 200 {} 200 1 201  2 203  3 206  4 210  5 215  
+  a 221 b 228 c 236 d 245 e 255
+}
+
+do_execsql_test 20.2.1 {
+  SELECT a, sum(b) OVER (
+    ORDER BY a RANGE BETWEEN 1 PRECEDING AND 1 FOLLOWING
+  ) FROM t1;
+} {{} 200 {} 200 1 3 2 6 3 9 4 12 5 9 a 6 b 7 c 8 d 9 e 10}
+do_execsql_test 20.2.2 {
+  SELECT a, sum(b) OVER (
+    ORDER BY a DESC RANGE BETWEEN 1 PRECEDING AND 1 FOLLOWING
+  ) FROM t1 ORDER BY a ASC;
+} {{} 200 {} 200 1 3 2 6 3 9 4 12 5 9 a 6 b 7 c 8 d 9 e 10}
+
+do_execsql_test 20.3.1 {
+  SELECT a, sum(b) OVER (
+    ORDER BY a RANGE BETWEEN 2 PRECEDING AND 1 FOLLOWING
+  ) FROM t1;
+} {{} 200 {} 200 1 3 2 6 3 10 4 14 5 12 a 6 b 7 c 8 d 9 e 10}
+do_execsql_test 20.3.2 {
+  SELECT a, sum(b) OVER (
+    ORDER BY a DESC RANGE BETWEEN 1 PRECEDING AND 2 FOLLOWING
+  ) FROM t1 ORDER BY a ASC;
+} {{} 200 {} 200 1 3 2 6 3 10 4 14 5 12 a 6 b 7 c 8 d 9 e 10}
+
+#-------------------------------------------------------------------------
+do_execsql_test 21.0 {
+  CREATE TABLE keyword_tab(
+    current, exclude, filter, following, groups, no, others, over,
+    partition, preceding, range, ties, unbounded, window
+  );
+}
+do_execsql_test 21.1 {
+  SELECT
+    current, exclude, filter, following, groups, no, others, over,
+    partition, preceding, range, ties, unbounded, window
+  FROM keyword_tab
+}
+
+#-------------------------------------------------------------------------
+foreach {tn expr err} {
+  1   4.5      0
+  2   NULL     1
+  3   0.0      0
+  4   0.1      0
+  5  -0.1      1
+  6  ''        1
+  7  '2.0'     0
+  8  '2.0x'    1
+  9  x'1234'   1
+ 10  '1.2'     0
+} {
+  set res {0 1}
+  if {$err} {set res {1 {frame starting offset must be a non-negative number}} }
+  do_catchsql_test 22.$tn.1 "
+    WITH a(x, y) AS ( VALUES(1, 2) )
+    SELECT sum(x) OVER (
+      ORDER BY y RANGE BETWEEN $expr PRECEDING AND UNBOUNDED FOLLOWING
+    ) FROM a
+  " $res
+
+  set res {0 1}
+  if {$err} {set res {1 {frame ending offset must be a non-negative number}} }
+  do_catchsql_test 22.$tn.2 "
+    WITH a(x, y) AS ( VALUES(1, 2) )
+    SELECT sum(x) OVER (
+      ORDER BY y RANGE BETWEEN UNBOUNDED PRECEDING AND $expr FOLLOWING
+    ) FROM a
+  " $res
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 23.0 {
+  CREATE TABLE t5(a, b, c);
+  CREATE INDEX t5ab ON t5(a, b);
+}
+
+proc do_ordercount_test {tn sql nOrderBy} {
+  set plan [execsql "EXPLAIN QUERY PLAN $sql"]
+  uplevel [list do_test $tn [list regexp -all ORDER $plan] $nOrderBy]
+}
+
+do_ordercount_test 23.1 {
+  SELECT 
+    sum(c) OVER (ORDER BY a, b),
+    sum(c) OVER (PARTITION BY a ORDER BY b)
+  FROM t5
+} 0
+
+do_ordercount_test 23.2 {
+  SELECT 
+    sum(c) OVER (ORDER BY b, a),
+    sum(c) OVER (PARTITION BY b ORDER BY a)
+  FROM t5
+} 1
+
+do_ordercount_test 23.3 {
+  SELECT 
+    sum(c) OVER (ORDER BY b, a),
+    sum(c) OVER (ORDER BY c, b)
+  FROM t5
+} 2
+
+do_ordercount_test 23.4 {
+  SELECT 
+    sum(c) OVER (ORDER BY b ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW),
+    sum(c) OVER (ORDER BY b RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW),
+    sum(c) OVER (ORDER BY b GROUPS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM t5
+} 1
+
+do_ordercount_test 23.5 {
+  SELECT 
+    sum(c) OVER (ORDER BY b+1 ROWS UNBOUNDED PRECEDING),
+    sum(c) OVER (ORDER BY b+1 RANGE UNBOUNDED PRECEDING),
+    sum(c) OVER (ORDER BY b+1 GROUPS UNBOUNDED PRECEDING)
+  FROM t5
+} 1
+
+do_ordercount_test 23.6 {
+  SELECT 
+    sum(c) OVER (ORDER BY b+1 ROWS UNBOUNDED PRECEDING),
+    sum(c) OVER (ORDER BY b+2 RANGE UNBOUNDED PRECEDING),
+    sum(c) OVER (ORDER BY b+3 GROUPS UNBOUNDED PRECEDING)
+  FROM t5
+} 3
+
+do_execsql_test 24.1 {
+  SELECT sum(44) OVER ()
+} {44}
+
+do_execsql_test 24.2 {
+  SELECT lead(44) OVER ()
+} {{}}
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 25.0 {
+  CREATE TABLE t1 ( t1_id INTEGER PRIMARY KEY );
+  CREATE TABLE t2 ( t2_id INTEGER PRIMARY KEY );
+  CREATE TABLE t3 ( t3_id INTEGER PRIMARY KEY );
+
+  INSERT INTO t1 VALUES(1),  (3), (5);
+  INSERT INTO t2 VALUES      (3), (5);
+  INSERT INTO t3 VALUES(10), (11), (12);
+}
+
+do_execsql_test 25.1 {
+  SELECT t1.* FROM t1, t2 WHERE 
+    t1_id=t2_id AND t1_id IN (
+        SELECT t1_id + row_number() OVER ( ORDER BY t1_id ) FROM t3
+    )
+}
+
+do_execsql_test 25.2 {
+  SELECT t1.* FROM t1, t2 WHERE 
+    t1_id=t2_id AND t1_id IN (
+        SELECT         row_number() OVER ( ORDER BY t1_id ) FROM t3
+    )
+} {3}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 26.0 {
+  CREATE TABLE t1(x);
+  CREATE TABLE t2(c);
+}
+
+do_execsql_test 26.1 {
+  SELECT ( SELECT row_number() OVER () FROM ( SELECT c FROM t1 ) ) FROM t2
+} {}
+
+do_execsql_test 26.2 {
+  INSERT INTO t1 VALUES(1), (2), (3), (4);
+  INSERT INTO t2 VALUES(2), (6), (8), (4);
+  SELECT c, c IN ( 
+    SELECT row_number() OVER () FROM ( SELECT c FROM t1 )
+  ) FROM t2
+} {2 1  6 0  8 0  4 1}
+
+do_execsql_test 26.3 {
+  DELETE FROM t1;
+  DELETE FROM t2;
+
+  INSERT INTO t2 VALUES(1), (2), (3), (4);
+  INSERT INTO t1 VALUES(1), (1), (2), (3), (3), (3), (3), (4), (4);
+
+  SELECT c, c IN ( 
+    SELECT row_number() OVER () FROM ( SELECT 1 FROM t1 WHERE x=c )
+  ) FROM t2
+} {1 1  2 0  3 1  4 0}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 27.0 {
+  CREATE TABLE t1(x);
+  INSERT INTO t1 VALUES(NULL), (1), (2), (3), (4), (5);
+}
+do_execsql_test 27.1 {
+  SELECT min(x) FROM t1;
+} {1}
+do_execsql_test 27.2 {
+  SELECT min(x) OVER win FROM t1
+  WINDOW win AS (ORDER BY rowid ROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING)
+} {1 1 1 2 3 4}
+
+#-------------------------------------------------------------------------
+
+reset_db
+do_execsql_test 28.1.1 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b CHAR(1), c CHAR(2), d ANY);
+  INSERT INTO t1 VALUES (3, 'C', 'cc', 1.0);
+  INSERT INTO t1 VALUES (13,'M', 'cc', NULL);
+}
+
+do_execsql_test 28.1.2 {
+  SELECT string_agg(b,'') OVER w1 FROM t1
+    WINDOW w1 AS (ORDER BY a RANGE BETWEEN 3 PRECEDING AND 1 PRECEDING)
+} {
+  {} {}
+}
+
+do_execsql_test 28.2.1 {
+  CREATE TABLE t2(a TEXT, b INTEGER);
+  INSERT INTO t2 VALUES('A', NULL);
+  INSERT INTO t2 VALUES('B', NULL);
+}
+
+do_execsql_test 28.2.1 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b CHAR(1), c CHAR(2), d ANY);
+  INSERT INTO t1 VALUES
+    (10,'J', 'cc', NULL),
+    (11,'K', 'cc', 'xyz'),
+    (13,'M', 'cc', NULL);
+}
+
+do_execsql_test 28.2.2 {
+  SELECT a, b, c, quote(d), group_concat(b,'') OVER w1, '|' FROM t1
+    WINDOW w1 AS
+    (ORDER BY d DESC RANGE BETWEEN 7.0 PRECEDING AND 2.5 PRECEDING)
+    ORDER BY c, d, a;
+} {
+  10 J cc NULL JM |
+  13 M cc NULL JM | 
+  11 K cc 'xyz' K |
+}
+
+#-------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 29.1 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b CHAR(1), c CHAR(2), d ANY);
+  INSERT INTO t1 VALUES
+    (1, 'A', 'aa', 2.5),
+    (2, 'B', 'bb', 3.75),
+    (3, 'C', 'cc', 1.0),
+    (4, 'D', 'cc', 8.25),
+    (5, 'E', 'bb', 6.5),
+    (6, 'F', 'aa', 6.5),
+    (7, 'G', 'aa', 6.0),
+    (8, 'H', 'bb', 9.0),
+    (9, 'I', 'aa', 3.75),
+    (10,'J', 'cc', NULL),
+    (11,'K', 'cc', 'xyz'),
+    (12,'L', 'cc', 'xyZ'),
+    (13,'M', 'cc', NULL);
+}
+
+do_execsql_test 29.2 {
+  SELECT a, b, c, quote(d), group_concat(b,'') OVER w1, '|' FROM t1
+    WINDOW w1 AS
+    (PARTITION BY c ORDER BY d DESC
+     RANGE BETWEEN 7.0 PRECEDING AND 2.5 PRECEDING)
+    ORDER BY c, d, a;
+} {
+  1 A aa 2.5 FG | 
+  9 I aa 3.75 F | 
+  7 G aa 6 {} | 
+  6 F aa 6.5 {} | 
+  2 B bb 3.75 HE |
+  5 E bb 6.5 H | 
+  8 H bb 9 {} | 
+  10 J cc NULL JM | 
+  13 M cc NULL JM | 
+  3 C cc 1 {} | 
+  4 D cc 8.25 {} | 
+  12 L cc 'xyZ' L | 
+  11 K cc 'xyz' K |
+}
+
+# 2019-07-18
+# Check-in [7ef7b23cbb1b9ace] (which was itself a fix for ticket
+# https://www.sqlite.org/src/info/1be72aab9) introduced a new problem
+# if the LHS of a BETWEEN operator is a WINDOW function.  The problem
+# was found by (the recently enhanced) dbsqlfuzz.
+#
+do_execsql_test 30.0 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a, b, c);
+  INSERT INTO t1 VALUES('BB','aa',399);
+  SELECT
+    count () OVER win1 NOT BETWEEN 'a' AND 'mmm',
+    count () OVER win3
+  FROM t1
+  WINDOW win1 AS (ORDER BY a GROUPS BETWEEN 4 PRECEDING AND 1 FOLLOWING
+                  EXCLUDE CURRENT ROW),
+         win2 AS (PARTITION BY b ORDER BY a),
+         win3 AS (win2 RANGE BETWEEN 5.2 PRECEDING AND true PRECEDING );
+} {1 1}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 31.1 {
+  CREATE TABLE t1(a, b);
+  CREATE TABLE t2(c, d);
+  CREATE TABLE t3(e, f);
+
+  INSERT INTO t1 VALUES(1, 1);
+  INSERT INTO t2 VALUES(1, 1);
+  INSERT INTO t3 VALUES(1, 1);
+}
+
+do_execsql_test 31.2 {
+  SELECT d IN (SELECT sum(c) OVER (ORDER BY e+c) FROM t3) FROM (
+    SELECT * FROM t2
+  );
+} {1}
+
+do_execsql_test 31.3 {
+  SELECT d IN (SELECT sum(c) OVER (PARTITION BY d ORDER BY e+c) FROM t3) FROM (
+    SELECT * FROM t2
+  );
+} {1}
+
+do_catchsql_test 31.3 {
+  SELECT d IN (
+    SELECT sum(c) OVER ( ROWS BETWEEN d FOLLOWING AND UNBOUNDED FOLLOWING) 
+    FROM t3
+  )
+  FROM (
+    SELECT * FROM t2
+  );
+} {1 {frame starting offset must be a non-negative integer}}
+
+do_catchsql_test 31.3 {
+  SELECT d IN (
+    SELECT sum(c) OVER ( ROWS BETWEEN CURRENT ROW AND c FOLLOWING) 
+    FROM t3
+  )
+  FROM (
+    SELECT * FROM t2
+  );
+} {1 {frame ending offset must be a non-negative integer}}
+
+# 2019-11-16 chromium issue 1025467
+ifcapable altertable {
+  db close
+  sqlite3 db :memory:
+  do_catchsql_test 32.10 {
+    CREATE VIEW a AS SELECT NULL INTERSECT SELECT NULL ORDER BY s() OVER R;
+    CREATE TABLE a0 AS SELECT 0;
+    ALTER TABLE a0 RENAME TO S;
+  } {1 {error in view a: 1st ORDER BY term does not match any column in the result set}}
+}
+
+reset_db
+do_execsql_test 33.1 {
+  CREATE TABLE t1(aa, bb);
+  INSERT INTO t1 VALUES(1, 2);
+  INSERT INTO t1 VALUES(5, 6);
+  CREATE TABLE t2(x);
+  INSERT INTO t2 VALUES(1);
+}
+do_execsql_test 33.2 {
+  SELECT (SELECT DISTINCT sum(aa) OVER() FROM t1 ORDER BY 1), x FROM t2 
+  ORDER BY 1;
+} {6 1}
+
+reset_db
+do_execsql_test 34.1 {
+  CREATE TABLE t1(a,b,c);
+}
+do_execsql_test 34.2 {
+  SELECT avg(a) OVER (
+      ORDER BY (SELECT sum(b) OVER ()
+        FROM t1 ORDER BY (
+          SELECT total(d) OVER (ORDER BY c)
+          FROM (SELECT 1 AS d) ORDER BY 1
+          )
+        )
+      )
+  FROM t1;
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_catchsql_test 35.0 {
+  SELECT * WINDOW f AS () ORDER BY name COLLATE nocase;
+} {1 {no tables specified}}
+
+do_catchsql_test 35.1 {
+  VALUES(1) INTERSECT SELECT * WINDOW f AS () ORDER BY x COLLATE nocase;
+} {1 {no tables specified}}
+
+do_execsql_test 35.2 {
+  CREATE TABLE t1(x);
+  INSERT INTO t1 VALUES(1), (2), (3);
+  VALUES(1) INTERSECT 
+  SELECT sum(x) OVER f FROM t1 WINDOW f AS (ORDER BY x) ORDER BY 1;
+} {1}
+
+do_execsql_test 35.3 {
+  VALUES(8) EXCEPT 
+  SELECT sum(x) OVER f FROM t1 WINDOW f AS (ORDER BY x) ORDER BY 1;
+} {8}
+
+do_execsql_test 35.4 {
+  VALUES(1) UNION 
+  SELECT sum(x) OVER f FROM t1 WINDOW f AS (ORDER BY x) ORDER BY 1;
+} {1 3 6}
+
+# 2019-12-07 gramfuzz find
+#
+do_execsql_test 36.10 {
+  VALUES(count(*)OVER());
+} {1}
+do_execsql_test 36.20 {
+  VALUES(count(*)OVER()),(2);
+} {1 2}
+do_execsql_test 36.30 {
+  VALUES(2),(count(*)OVER());
+} {2 1}
+do_execsql_test 36.40 {
+  VALUES(2),(3),(count(*)OVER()),(4),(5);
+} {2 3 1 4 5}
+
+# 2019-12-17 crash test case found by Yongheng and Rui
+# See check-in 1ca0bd982ab1183b
+#
+reset_db
+do_execsql_test 37.10 {
+  CREATE TABLE t0(a UNIQUE, b PRIMARY KEY);
+  CREATE VIEW v0(c) AS SELECT max((SELECT count(a)OVER(ORDER BY 1))) FROM t0;
+  SELECT c FROM v0 WHERE c BETWEEN 10 AND 20;
+} {}
+do_execsql_test 37.20 {
+  DROP VIEW v0;
+  CREATE VIEW v0(c) AS SELECT max((SELECT count(a)OVER(ORDER BY 1234))) FROM t0;
+  SELECT c FROM v0 WHERE c BETWEEN -10 AND 20;
+} {}
+
+# 2019-12-20 mrigger reported problem with a FILTER clause on an aggregate
+# in a join.
+#
+reset_db
+do_catchsql_test 38.10 {
+  CREATE TABLE t0(c0);
+  CREATE TABLE t1(c0, c1 UNIQUE);
+  INSERT INTO t0(c0) VALUES(1);
+  INSERT INTO t1(c0,c1) VALUES(2,3);
+  SELECT COUNT(*) FROM t0, t1 WHERE (SELECT AVG(0) FILTER(WHERE t1.c1));
+} {1 {misuse of aggregate: AVG()}}
+do_execsql_test 38.20 {
+  SELECT COUNT(*), AVG(1) FILTER(WHERE t1.c1) FROM t0, t1;
+} {1 1.0}
+do_catchsql_test 38.30 {
+  SELECT COUNT(*) FROM t0, t1 WHERE (SELECT AVG(1) FILTER(WHERE t1.c1));
+} {1 {misuse of aggregate: AVG()}}
+
+reset_db
+do_execsql_test 39.1 {
+  CREATE TABLE t0(c0 UNIQUE);
+}
+do_execsql_test 39.2 {
+  SELECT FIRST_VALUE(0) OVER();
+} {0}
+do_execsql_test 39.3 {
+  SELECT * FROM t0 WHERE(c0, 0) IN(SELECT FIRST_VALUE(0) OVER(), 0);
+}
+do_execsql_test 39.4 {
+  SELECT * FROM t0 WHERE (t0.c0, 1) IN(SELECT NTILE(1) OVER(), 0 FROM t0);
+}
+
+ifcapable rtree {
+  # 2019-12-25 ticket d87336c81c7d0873
+  #
+  reset_db
+  do_catchsql_test 40.1 {
+    CREATE VIRTUAL TABLE t0 USING rtree(c0, c1, c2);
+    SELECT * FROM t0
+     WHERE ((0,0) IN (SELECT COUNT(*),LAG(5)OVER(PARTITION BY 0) FROM t0),0)<=(c1,0);
+  } {0 {}}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 41.1 {
+  CREATE TABLE t1(a, b, c);
+  INSERT INTO t1 VALUES(NULL,'bb',355);
+  INSERT INTO t1 VALUES('CC','aa',158);
+  INSERT INTO t1 VALUES('GG','bb',929);
+  INSERT INTO t1 VALUES('FF','Rb',574);
+}
+
+do_execsql_test 41.2 {
+  SELECT min(c) OVER (
+    ORDER BY a RANGE BETWEEN 5.2 PRECEDING AND 0.1 PRECEDING
+  ) FROM t1
+} {355 158 574 929}
+
+do_execsql_test 41.2 {
+  SELECT min(c) OVER (
+    ORDER BY a RANGE BETWEEN 5.2 PRECEDING AND 0.1 PRECEDING
+  ) << 100 FROM t1
+} {0 0 0 0}
+
+do_execsql_test 41.3 {
+  SELECT
+    min(c) OVER win3 << first_value(c) OVER win3,
+    min(c) OVER win3 << first_value(c) OVER win3
+  FROM t1
+  WINDOW win3 AS (
+    PARTITION BY 6 ORDER BY a RANGE BETWEEN 5.2 PRECEDING AND 0.1 PRECEDING
+  );
+} {0 0  0 0  0 0  0 0}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 42.1 {
+  CREATE TABLE t1(a, b, c);
+  INSERT INTO t1 VALUES(1, 1, 1);
+  INSERT INTO t1 VALUES(2, 2, 2);
+}
+do_execsql_test 42.2 {
+  SELECT * FROM t1 WHERE (0, 0) IN ( SELECT count(*), 0 FROM t1 )
+} {}
+do_execsql_test 42.3 {
+  SELECT * FROM t1 WHERE (2, 0) IN ( SELECT count(*), 0 FROM t1 )
+} {1 1 1 2 2 2}
+
+do_execsql_test 42.3 {
+  SELECT count(*), max(a) OVER () FROM t1 GROUP BY c; 
+} {1 2 1 2}
+
+do_execsql_test 42.4 {
+  SELECT sum(a), max(b) OVER () FROM t1;
+} {3 1}
+
+do_execsql_test 42.5 {
+  CREATE TABLE t2(a, b);
+  INSERT INTO t2 VALUES('a', 1);
+  INSERT INTO t2 VALUES('a', 2);
+  INSERT INTO t2 VALUES('a', 3);
+  INSERT INTO t2 VALUES('b', 4);
+  INSERT INTO t2 VALUES('b', 5);
+  INSERT INTO t2 VALUES('b', 6);
+}
+
+do_execsql_test 42.6 {
+  SELECT a, sum(b), sum( sum(b) ) OVER (ORDER BY a) FROM t2 GROUP BY a;
+} {a 6 6   b 15 21}
+
+do_execsql_test 42.7 {
+  SELECT sum(b), sum( sum(b) ) OVER (ORDER BY a) FROM t2;
+} {21 21}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 43.1.1 {
+  CREATE TABLE t1(x INTEGER PRIMARY KEY);
+  INSERT INTO t1 VALUES (10);
+}
+do_catchsql_test 43.1.2 {
+  SELECT count() OVER() AS m FROM t1 ORDER BY (SELECT m);
+} {1 {misuse of aliased window function m}}
+
+reset_db
+do_execsql_test 43.2.1 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b INTEGER);
+  INSERT INTO t1(a, b) VALUES(1,  10); -- 10
+  INSERT INTO t1(a, b) VALUES(2,  15); -- 25
+  INSERT INTO t1(a, b) VALUES(3,  -5); -- 20
+  INSERT INTO t1(a, b) VALUES(4,  -5); -- 15
+  INSERT INTO t1(a, b) VALUES(5,  20); -- 35
+  INSERT INTO t1(a, b) VALUES(6, -11); -- 24
+}
+
+do_execsql_test 43.2.2 {
+  SELECT a, sum(b) OVER (ORDER BY a) AS abc FROM t1 ORDER BY 2
+} {
+  1 10   4 15   3 20   6 24   2 25   5 35
+}
+
+do_execsql_test 43.2.3 {
+  SELECT a, sum(b) OVER (ORDER BY a) AS abc FROM t1 ORDER BY abc
+} {
+  1 10   4 15   3 20   6 24   2 25   5 35
+}
+
+do_execsql_test 43.2.4 {
+  SELECT a, sum(b) OVER (ORDER BY a) AS abc FROM t1 ORDER BY abc+5
+} {
+  1 10   4 15   3 20   6 24   2 25   5 35
+}
+
+do_catchsql_test 43.2.5 {
+  SELECT a, sum(b) OVER (ORDER BY a) AS abc FROM t1 ORDER BY (SELECT abc)
+} {1 {misuse of aliased window function abc}}
+
+do_catchsql_test 43.2.6 {
+  SELECT a, 1+sum(b) OVER (ORDER BY a) AS abc FROM t1 ORDER BY (SELECT abc)
+} {1 {misuse of aliased window function abc}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 44.1 {
+  CREATE TABLE t0(c0);
+}
+
+do_catchsql_test 44.2.1 {
+  SELECT ntile(0) OVER ();
+} {1 {argument of ntile must be a positive integer}}
+do_catchsql_test 44.2.2 {
+  SELECT (0, 0) IN(SELECT MIN(c0), NTILE(0) OVER()) FROM t0;
+} {1 {argument of ntile must be a positive integer}}
+
+do_execsql_test 44.3.1 {
+  SELECT ntile(1) OVER ();
+} {1}
+do_execsql_test 44.3.2 {
+  SELECT (0, 0) IN(SELECT MIN(c0), NTILE(1) OVER()) FROM t0;
+} {0}
+
+do_execsql_test 44.4.2 {
+  INSERT INTO t0 VALUES(2), (1), (0);
+  SELECT (0, 1) IN(SELECT MIN(c0), NTILE(1) OVER()) FROM t0;
+} {1}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 45.1 {
+  CREATE TABLE t0(x);
+  CREATE TABLE t1(a);
+  INSERT INTO t1 VALUES(1000);
+  INSERT INTO t1 VALUES(1000);
+  INSERT INTO t0 VALUES(10000);
+}
+do_execsql_test 45.2 {
+  SELECT * FROM (
+      SELECT sum (a) OVER() FROM t1 UNION ALL SELECT x FROM t0
+  );
+} {2000 2000 10000}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 46.1 {
+  CREATE TABLE t1 (a);
+  CREATE INDEX i1 ON t1(a);
+
+  INSERT INTO t1 VALUES (10);
+}
+
+do_execsql_test 46.2 {
+  SELECT (SELECT sum(a) OVER(ORDER BY a)) FROM t1
+} 10
+
+do_execsql_test 46.3 {
+  SELECT * FROM t1 WHERE (SELECT sum(a) OVER(ORDER BY a));
+} 10
+
+do_execsql_test 46.4 {
+  SELECT * FROM t1 NATURAL JOIN t1
+    WHERE a=1
+    OR ((SELECT sum(a)OVER(ORDER BY a)) AND a<=10)
+} 10
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 47.0 {
+  CREATE TABLE t1(
+      a,
+      e,
+      f,
+      g UNIQUE,
+      h UNIQUE
+  );
+}
+
+do_execsql_test 47.1 {
+  CREATE VIEW t2(k) AS
+     SELECT e FROM t1 WHERE g = 'abc' OR h BETWEEN 10 AND f;
+}
+
+do_catchsql_test 47.2 {
+  SELECT 234 FROM t2
+    WHERE k=1
+    OR (SELECT k FROM t2 WHERE (SELECT sum(a) OVER() FROM t1 GROUP BY 1));
+} {1 {misuse of window function sum()}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 48.0 {
+  CREATE TABLE t1(a);
+  INSERT INTO t1 VALUES(1);
+  INSERT INTO t1 VALUES(2);
+  INSERT INTO t1 VALUES(3);
+  SELECT (SELECT max(x)OVER(ORDER BY x) + min(x)OVER(ORDER BY x))
+    FROM (SELECT (SELECT sum(a) FROM t1) AS x FROM t1);
+} {12 12 12}
+
+do_execsql_test 48.1 {
+  SELECT (SELECT max(x)OVER(ORDER BY x) + min(x)OVER(ORDER BY x))
+    FROM (SELECT (SELECT sum(a) FROM t1 GROUP BY a) AS x FROM t1);
+} {2 2 2}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 49.1 {
+  CREATE TABLE t1 (a PRIMARY KEY);
+  INSERT INTO t1 VALUES(1);
+}
+
+do_execsql_test 49.2 {
+  SELECT b AS c FROM (
+    SELECT a AS b FROM (
+      SELECT a FROM t1 WHERE a=1 OR (SELECT sum(a) OVER ())
+    ) 
+    WHERE b=1 OR b<10
+  ) 
+  WHERE c=1 OR c>=10;
+} {1}
+
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 50.0 {
+  CREATE TABLE t1 (a DOUBLE PRIMARY KEY);
+  INSERT INTO t1 VALUES(10.0);
+}
+
+do_execsql_test 50.1 {
+  SELECT * FROM t1 WHERE a%1 OR (SELECT sum(a) OVER (ORDER BY a%2))
+} {10.0}
+
+do_execsql_test 50.2 {
+  SELECT * FROM (
+    SELECT * FROM t1 WHERE a%1 OR (SELECT sum(a) OVER (ORDER BY a%2))
+  ) 
+  WHERE a=1 OR ( (SELECT sum(a) OVER (ORDER BY a%4)) AND a<=10 )
+} {10.0}
+
+do_execsql_test 50.3 {
+  SELECT a FROM (
+    SELECT * FROM (
+      SELECT * FROM t1 WHERE a%1 OR (SELECT sum(a) OVER (ORDER BY a%2))
+    ) 
+    WHERE a=1 OR ( (SELECT sum(a) OVER (ORDER BY a%4)) AND a<=10 )
+  ) 
+  WHERE a=1 OR a=10.0
+} {10.0}
+
+do_execsql_test 50.4 {
+  SELECT a FROM (
+    SELECT * FROM (
+      SELECT * FROM t1 WHERE a%1 OR (SELECT sum(a) OVER (ORDER BY a%2))
+    ) 
+    WHERE a=1 OR ( (SELECT sum(a) OVER (ORDER BY a%4)) AND a<=10 )
+  ) 
+  WHERE a=1 OR ((SELECT sum(a) OVER(ORDER BY a%8)) AND 10<=a)
+} {10.0}
+
+do_execsql_test 50.5 {
+SELECT * FROM (SELECT * FROM t1 NATURAL JOIN t1 WHERE a%1 OR ((SELECT sum(a)OVER(ORDER BY a)) AND a<=10)) NATURAL JOIN t1 WHERE a=1 OR ((SELECT sum((SELECT * FROM (SELECT * FROM (SELECT * FROM t1 NATURAL JOIN t1 WHERE a%1 OR ((SELECT sum(a)OVER(ORDER BY a)) AND a<=10)) NATURAL JOIN t1 WHERE a=1 OR ((SELECT sum((SELECT * FROM t1 NATURAL JOIN t1 WHERE a=1 OR ((SELECT sum(a)OVER(ORDER BY a)) AND a<=10)))OVER(ORDER BY a% 1 )) AND a<=10)) NATURAL JOIN t1 WHERE a=1 OR ((SELECT sum(a)OVER(ORDER BY a)) AND 10<=a)))OVER(ORDER BY a%5)) AND a<=10);
+} {10.0}
+
+# 2020-04-03 ticket af4556bb5c285c08
+#
+reset_db
+do_catchsql_test 51.1 {
+  CREATE TABLE a(b, c);
+  SELECT c FROM a GROUP BY c
+    HAVING(SELECT(sum(b) OVER(ORDER BY b),
+                  sum(b) OVER(PARTITION BY min(DISTINCT c), c ORDER BY b)));
+} {1 {row value misused}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 52.1 {
+  CREATE TABLE t1(a, b, c);
+  INSERT INTO t1 VALUES('AA','bb',356);
+  INSERT INTO t1 VALUES('CC','aa',158);
+  INSERT INTO t1 VALUES('BB','aa',399);
+  INSERT INTO t1 VALUES('FF','bb',938);
+}
+
+do_execsql_test 52.2 {
+  SELECT
+    count() OVER win1,
+    sum(c) OVER win2, 
+    first_value(c) OVER win2,
+    count(a) OVER (ORDER BY b)
+      FROM t1
+      WINDOW
+      win1 AS (ORDER BY a),
+    win2 AS (PARTITION BY 6 ORDER BY a
+        RANGE BETWEEN 5 PRECEDING AND 0 PRECEDING );
+} {
+  1 356 356 4 
+  2 399 399 2 
+  3 158 158 2 
+  4 938 938 4
+}
+
+do_execsql_test 52.3 {
+SELECT
+  count() OVER (),
+  sum(c) OVER win2, 
+  first_value(c) OVER win2,
+  count(a) OVER (ORDER BY b)
+FROM t1
+WINDOW
+  win1 AS (ORDER BY a),
+  win2 AS (PARTITION BY 6 COLLATE binary ORDER BY a
+           RANGE BETWEEN 5 PRECEDING AND 0 PRECEDING );
+} {
+  4 356 356 4 
+  4 399 399 2 
+  4 158 158 2 
+  4 938 938 4
+}
+
+do_execsql_test 52.4 {
+  SELECT
+    count() OVER win1,
+    sum(c) OVER win2, 
+    first_value(c) OVER win2,
+    count(a) OVER (ORDER BY b)
+  FROM t1
+  WINDOW
+    win1 AS (ORDER BY a),
+    win2 AS (PARTITION BY 6 COLLATE binary ORDER BY a
+             RANGE BETWEEN 5 PRECEDING AND 0 PRECEDING );
+} {
+  1 356 356 4 
+  2 399 399 2 
+  3 158 158 2 
+  4 938 938 4
+}
+
+# 2020-05-23
+# ticket 7a5279a25c57adf1
+#
+reset_db
+do_execsql_test 53.0 {
+  CREATE TABLE a(c UNIQUE);
+  INSERT INTO a VALUES(4),(0),(9),(-9);
+  SELECT a.c
+    FROM a
+    JOIN a AS b ON a.c=4
+    JOIN a AS e ON a.c=e.c
+   WHERE a.c=(SELECT (SELECT coalesce(lead(2) OVER(),0) + sum(d.c))
+                FROM a AS d
+               WHERE a.c);
+} {4 4 4 4}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 54.1 {
+  CREATE TABLE t1(a VARCHAR(20), b FLOAT);
+  INSERT INTO t1 VALUES('1',10.0);
+}
+
+do_catchsql_test 54.2 {
+  SELECT * FROM ( 
+    SELECT sum(b) OVER() AS c FROM t1 
+      UNION
+    SELECT b AS c FROM t1
+  ) WHERE c>10;
+} {0 {}}
+
+do_execsql_test 54.3 {
+  INSERT INTO t1 VALUES('2',5.0);
+  INSERT INTO t1 VALUES('3',15.0);
+}
+
+do_catchsql_test 54.4 {
+  SELECT * FROM ( 
+    SELECT sum(b) OVER() AS c FROM t1 
+      UNION
+    SELECT b AS c FROM t1
+  ) WHERE c>10;
+} {0 {15.0 30.0}}
+
+# 2020-06-05 ticket c8d3b9f0a750a529
+reset_db
+do_execsql_test 55.1 {
+   CREATE TABLE a(b);
+   SELECT
+      (SELECT b FROM a
+        GROUP BY b
+        HAVING (SELECT COUNT()OVER() + lead(b)OVER(ORDER BY SUM(DISTINCT b) + b))
+      ) 
+    FROM a
+  UNION
+   SELECT 99
+    ORDER BY 1;
+} {99}
+
+#------------------------------------------------------------------------
+reset_db
+do_execsql_test 56.1 {
+  CREATE TABLE t1(a, b INTEGER); 
+  CREATE TABLE t2(c, d); 
+}
+do_catchsql_test 56.2 {
+  SELECT avg(b) FROM t1 
+    UNION ALL 
+  SELECT min(c) OVER () FROM t2 
+  ORDER BY nosuchcolumn;
+} {1 {1st ORDER BY term does not match any column in the result set}}
+
+reset_db
+do_execsql_test 57.1 {
+  CREATE TABLE t4(a, b, c, d, e);
+}
+
+do_catchsql_test 57.2  {
+  SELECT b FROM t4
+  UNION
+  SELECT a FROM t4
+  ORDER BY (
+    SELECT sum(x) OVER() FROM (
+      SELECT c AS x FROM t4
+      UNION
+      SELECT d FROM t4
+      ORDER BY (SELECT e FROM t4)
+    )
+  );
+} {1 {1st ORDER BY term does not match any column in the result set}}
+
+# 2020-06-06 various dbsqlfuzz finds and
+# ticket 0899cf62f597d7e7
+#
+reset_db
+do_execsql_test 57.1 {
+  CREATE TABLE t1(a, b, c);
+  INSERT INTO t1 VALUES(NULL,NULL,NULL);
+  SELECT 
+    sum(a),
+    min(b) OVER (),
+    count(c) OVER (ORDER BY b)
+  FROM t1;
+} {{} {} 0}
+do_execsql_test 57.2 {
+  CREATE TABLE v0 ( v1 INTEGER PRIMARY KEY ) ; 
+  INSERT INTO v0 VALUES ( 10 ) ; 
+  SELECT DISTINCT v1, lead(v1) OVER() FROM v0 GROUP BY v1 ORDER BY 2;
+} {10 {}}
+do_catchsql_test 57.3 {
+  DROP TABLE t1;
+  CREATE TABLE t1(a);
+  INSERT INTO t1(a) VALUES(22);
+  CREATE TABLE t3(y);
+  INSERT INTO t3(y) VALUES(5),(11),(-9);
+  SELECT (
+    SELECT max(y) OVER( ORDER BY (SELECT x FROM (SELECT sum(y) AS x FROM t1)))
+  )
+  FROM t3;
+} {0 5}
+
+# 2020-06-06 ticket 1f6f353b684fc708
+reset_db
+do_execsql_test 58.1 {
+  CREATE TABLE a(a, b, c);
+  INSERT INTO a VALUES(1, 2, 3);
+  INSERT INTO a VALUES(4, 5, 6);
+  SELECT sum(345+b)      OVER (ORDER BY b),
+         sum(avg(678)) OVER (ORDER BY c) FROM a;
+} {347 678.0}
+
+# 2020-06-06 ticket e5504e987e419fb0
+do_catchsql_test 59.1 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(x INTEGER PRIMARY KEY);
+  INSERT INTO t1 VALUES (123);
+  SELECT
+     ntile( (SELECT sum(x)) ) OVER(ORDER BY x),
+     min(x) OVER(ORDER BY x)
+    FROM t1; 
+} {1 {misuse of aggregate: sum()}}
+
+# 2020-06-07 ticket f7d890858f361402
+do_execsql_test 60.1 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1 (x INTEGER PRIMARY KEY);
+  INSERT INTO t1 VALUES (99);
+  SELECT EXISTS(SELECT count(*) OVER() FROM t1 ORDER BY sum(x) OVER());
+} {1}
+
+# 2020-06-07 test case generated by dbsqlfuzz showing how an AggInfo
+# object might be referenced after the sqlite3Select() call that created
+# it returns.  This proves the need to persist all AggInfo objects until
+# the Parse object is destroyed.
+#
+reset_db
+do_catchsql_test 61.1 {
+CREATE TABLE t1(a);
+INSERT INTO t1 VALUES(5),(NULL),('seventeen');
+SELECT (SELECT max(x)OVER(ORDER BY x) % min(x)OVER(ORDER BY CASE x WHEN 889 THEN x WHEN x THEN x END)) FROM (SELECT (SELECT sum(CAST(a IN(SELECT (SELECT max(x)OVER(ORDER BY CASE x WHEN 889 THEN 299 WHEN 863 THEN 863 END)) FROM (SELECT (SELECT sum(CAST((SELECT (SELECT max(x)OVER(ORDER BY x) / min(x)OVER(ORDER BY CASE x WHEN 889 THEN 299 WHEN -true THEN 863 END)) FROM (SELECT (SELECT sum(CAST(a IN(SELECT (SELECT max(x) & sum ( a )OVER(ORDER BY CASE x WHEN -8 THEN 299 WHEN 863 THEN 863 END)) FROM (SELECT (SELECT sum(CAST(a AS )) FROM t1) AS x FROM t1)) AS t1 )) FROM t1) AS x FROM t1)) AS x )) FROM t1) AS x FROM t1)) AS real)) FROM t1) AS x FROM t1);
+} {0 {{} {} {}}}
+
+foreach tn {1 2} {
+  if {$tn==2} { optimization_control db query-flattener 0 }
+  do_catchsql_test 61.2.$tn {
+    SELECT 
+      (SELECT max(x)OVER(ORDER BY x) / min(x) OVER() ) 
+    FROM (
+      SELECT (SELECT sum(a) FROM t1 ) AS x FROM t1
+    )
+
+  } {0 {1.0 1.0 1.0}}
+}
+
+reset_db
+optimization_control db all 0 
+do_execsql_test 61.3.0 {
+  CREATE TABLE t1(a);
+  CREATE TABLE t2(y);
+}
+
+do_execsql_test 61.3.1 {
+  SELECT (
+    SELECT count(a) OVER ( ORDER BY (SELECT sum(y) FROM t2) )
+         + total(a) OVER() 
+  )
+  FROM t1
+} {}
+do_execsql_test 61.4.2 {
+  SELECT (
+    SELECT count(a) OVER ( ORDER BY sum(a) )
+         + total(a) OVER() 
+  )
+  FROM t1
+} {0.0}
+
+do_catchsql_test 61.4.3 {
+  SELECT 
+    sum(a) OVER ( ORDER BY a ) 
+  FROM t1 
+  ORDER BY (SELECT sum(a) FROM t2)
+} {1 {misuse of aggregate: sum()}}
+do_execsql_test 61.4.4 {
+  SELECT 
+    sum(a) OVER ( ORDER BY a ) 
+  FROM t1 
+  ORDER BY (SELECT sum(y) FROM t2)
+} 
+
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 62.1 {
+  CREATE TABLE t1(a VARCHAR(20), b FLOAT);
+  INSERT INTO t1 VALUES('1',10.0);
+}
+
+do_execsql_test 62.2 {
+  SELECT * FROM ( 
+      SELECT sum(b) OVER() AS c FROM t1 
+      UNION
+      SELECT b AS c FROM t1
+      ) WHERE c>10;
+}
+
+do_execsql_test 62.3 {
+  INSERT INTO t1 VALUES('2',5.0);
+  INSERT INTO t1 VALUES('3',15.0);
+}
+
+do_execsql_test 62.4 {
+  SELECT * FROM ( 
+      SELECT sum(b) OVER() AS c FROM t1 
+      UNION
+      SELECT b AS c FROM t1
+      ) WHERE c>10;
+} {15.0 30.0}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 63.1 {
+  CREATE TABLE t1(b, x);
+  CREATE TABLE t2(c, d);
+  CREATE TABLE t3(e, f);
+}
+
+do_execsql_test 63.2 {
+  SELECT max(b) OVER(
+      ORDER BY SUM(
+        (SELECT c FROM t2 UNION SELECT x ORDER BY c)
+      )
+  ) FROM t1;
+} {{}}
+
+do_execsql_test 63.3 {
+  SELECT sum(b) over(
+      ORDER BY (
+        SELECT max(b) OVER(
+          ORDER BY sum(
+            (SELECT x AS c UNION SELECT 1234 ORDER BY c)
+          )
+        ) AS e
+        ORDER BY e
+      )
+    )
+  FROM t1;
+} {{}}
+
+#-------------------------------------------------------------------------
+reset_db 
+do_execsql_test 64.1 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
+  INSERT INTO t1 VALUES(1, 'abcd');
+  INSERT INTO t1 VALUES(2, 'BCDE');
+  INSERT INTO t1 VALUES(3, 'cdef');
+  INSERT INTO t1 VALUES(4, 'DEFG');
+}
+
+do_execsql_test 64.2 {
+  SELECT rowid, max(b COLLATE nocase)||'' 
+  FROM t1 
+  GROUP BY rowid
+  ORDER BY max(b COLLATE nocase)||'';
+} {1 abcd 2 BCDE 3 cdef 4 DEFG}
+
+do_execsql_test 64.3 {
+  SELECT count() OVER (), rowid, max(b COLLATE nocase)||'' 
+  FROM t1 
+  GROUP BY rowid
+  ORDER BY max(b COLLATE nocase)||'';
+} {4 1 abcd   4 2 BCDE   4 3 cdef   4 4 DEFG}
+
+do_execsql_test 64.4 {
+  SELECT count() OVER (), rowid, max(b COLLATE nocase)
+  FROM t1 
+  GROUP BY rowid
+  ORDER BY max(b COLLATE nocase);
+} {4 1 abcd   4 2 BCDE   4 3 cdef   4 4 DEFG}
+
+#-------------------------------------------------------------------------
+reset_db 
+do_execsql_test 65.1 {
+  CREATE TABLE t1(c1);
+  INSERT INTO t1 VALUES('abcd');
+}
+do_execsql_test 65.2 {
+  SELECT max(c1 COLLATE nocase) IN (SELECT 'aBCd') FROM t1;
+} {1}
+
+do_execsql_test 65.3 {
+  SELECT 
+     count() OVER (), 
+     group_concat(c1 COLLATE nocase) IN (SELECT 'aBCd') FROM t1;
+} {1 1}
+
+do_execsql_test 65.4 {
+  SELECT COUNT() OVER () LIKE lead(102030) OVER(
+      ORDER BY sum('abcdef' COLLATE nocase) IN (SELECT 54321) 
+  )
+  FROM t1;
+} {{}}
+
+#-------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 66.1 {
+  CREATE TABLE t1(a INTEGER);
+  INSERT INTO t1 VALUES(3578824042033200656);
+  INSERT INTO t1 VALUES(3029012920382354029);
+}
+
+foreach {tn spec} {
+  1 "ORDER BY a RANGE BETWEEN 0.3 PRECEDING AND 10 FOLLOWING"
+  2 "ORDER BY a RANGE BETWEEN 0.3 PRECEDING AND 0.1 PRECEDING"
+  3 "ORDER BY a RANGE BETWEEN 0.3 FOLLOWING AND 10 FOLLOWING"
+  4 "ORDER BY a DESC RANGE BETWEEN 0.3 PRECEDING AND 10 FOLLOWING"
+  5 "ORDER BY a NULLS LAST RANGE BETWEEN 0.3 PRECEDING AND 10 FOLLOWING"
+  6 "ORDER BY a RANGE BETWEEN 1.0 PRECEDING AND 2.0 PRECEDING"
+} {
+  do_execsql_test 66.2.$tn "
+    SELECT total(a) OVER ( $spec ) FROM t1 ORDER BY a
+  " {
+    3.02901292038235e+18 3.5788240420332e+18
+  }
+}
+
+
+do_execsql_test 66.3 {
+  CREATE TABLE t2(a INTEGER);
+  INSERT INTO t2 VALUES(45);
+  INSERT INTO t2 VALUES(30);
+}
+
+foreach {tn spec res} {
+  1 "ORDER BY a RANGE BETWEEN 0.3 PRECEDING AND 10 FOLLOWING"   {30.0 45.0}
+  2 "ORDER BY a RANGE BETWEEN 0.3 PRECEDING AND 0.1 PRECEDING"  {0.0 0.0}
+  3 "ORDER BY a RANGE BETWEEN 0.3 FOLLOWING AND 10 FOLLOWING"   {0.0 0.0}
+  4 "ORDER BY a DESC RANGE BETWEEN 0.3 PRECEDING AND 10 FOLLOWING" {30.0 45.0}
+  5 "ORDER BY a NULLS LAST RANGE BETWEEN 0.3 PRECEDING AND 10 FOLLOWING" {30.0 45.0}
+  6 "ORDER BY a RANGE BETWEEN 1.0 PRECEDING AND 2.0 PRECEDING" {0.0 0.0}
+} {
+  do_execsql_test 66.2.$tn "
+    SELECT total(a) OVER ( $spec ) FROM t2 ORDER BY a
+  " $res
+}
+
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 67.0 {
+  CREATE TABLE t1(a, b, c);
+  CREATE TABLE t2(a, b, c);
+}
+
+do_catchsql_test 67.1 {
+  SELECT a,c,b FROM t1 INTERSECT SELECT a,b,c FROM t1 ORDER BY (             
+      SELECT nth_value(a,2) OVER w1 
+      WINDOW w1 AS ( ORDER BY ((SELECT 1 FROM v1)) )
+  )
+} {1 {no such table: v1}}
+
+do_catchsql_test 67.2 {
+  SELECT a,c,b FROM t1 INTERSECT SELECT a,b,c FROM t1 ORDER BY (             
+      SELECT nth_value(a,2) OVER w1 
+      WINDOW w1 AS ( ORDER BY ((SELECT 1 FROM t2)) )
+  )
+} {1 {1st ORDER BY term does not match any column in the result set}}
+
+# 2021-05-07
+# Do not allow aggregate functions in the ORDER BY clause even if
+# there are window functions in the result set.
+# Forum: /forumpost/540fdfef77
+#
+reset_db
+do_catchsql_test 68.0 {
+  CREATE TABLE t1(a,b);
+  INSERT INTO t1(a,b) VALUES(0,0),(1,1),(2,4),(3,9),(4,99);
+  SELECT rowid, a, b, sum(a)OVER() FROM t1 ORDER BY count(b);
+} {1 {misuse of aggregate: count()}}
+
+# 2021-05-22
+# Forum https://sqlite.org/forum/forumpost/7e484e225c
+#
+reset_db
+do_catchsql_test 69.0 {
+  CREATE TABLE t1(a,b);
+  CREATE INDEX t1ba ON t1(b,a);
+  SELECT * FROM t1 WHERE b = (SELECT b FROM t1 ORDER BY lead(b) OVER () AND sum(a));
+} {1 {misuse of aggregate: sum()}}
+do_catchsql_test 69.1 {
+  SELECT * FROM t1 WHERE b >= (SELECT b FROM t1 ORDER BY lead(b) OVER () AND sum(a));
+} {1 {misuse of aggregate: sum()}}
+do_catchsql_test 69.2 {
+  SELECT * FROM t1 WHERE b <= (SELECT b FROM t1 ORDER BY lead(b) OVER () AND sum(a));
+} {1 {misuse of aggregate: sum()}}
+
+# 2021-06-23
+# Forum https://sqlite.org/forum/forumpost/31e0432608
+#
+reset_db
+do_execsql_test 70.0 {
+  CREATE TABLE t1(a);
+}
+do_execsql_test 70.1 {
+  SELECT substr(a,4,lag(a,7) OVER(PARTITION BY 'cf23' ORDER BY 2)) AS ca0 FROM t1 ORDER BY ca0;
+}
+do_execsql_test 70.2 {
+  SELECT substr(a,4,lag(a,7) OVER(PARTITION BY 'cf23' ORDER BY likely(2))) AS ca0 FROM t1 ORDER BY ca0;
+}
+
+# 2021-11-07
+# Bug report from Wang Ke
+# https://sqlite.org/forum/forumpost/9ba4f60ff8
+reset_db
+do_catchsql_test 71.0 {
+  CREATE TABLE t0(a);
+  SELECT a FROM t0, (SELECT a AS b FROM t0)
+   WHERE (a,1)=(SELECT 2,2 UNION SELECT sum(b),max(b) OVER(ORDER BY b) ORDER BY 2)
+     AND b=4
+   ORDER BY b;
+} {/1 {.*}/}
+
+do_execsql_test 72.1 {
+  CREATE TABLE dual(dummy);  INSERT INTO dual VALUES('X');
+  CREATE VIEW v1(x,y) AS SELECT RANK() OVER (PARTITION BY 0), SUM(0) FROM dual;
+  SELECT * FROM v1 WHERE true;
+} {1 0}
+
+#-------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 72.0 {
+  CREATE TABLE t0(c0);
+  INSERT INTO t0(c0) VALUES (0);
+  CREATE VIEW v0(c0) AS SELECT TOTAL(0) OVER (PARTITION BY t0.c0) FROM t0;
+}
+do_execsql_test 72.1 {
+  SELECT COUNT(*) FROM (
+      SELECT TOTAL(0) OVER (PARTITION BY t0.c0) FROM t0
+      )
+  WHERE ('1' IS NOT ('abcde' NOTNULL)); 
+} {1}
+
+# 2023-03-28 https://sqlite.org/forum/forumpost/dc3b92cfa0 (Song Liu)
+#
+reset_db
+do_execsql_test 73.0 {
+  CREATE TABLE t1(a INT);
+  INSERT INTO t1(a) VALUES(1),(2),(4);
+  CREATE VIEW t2(b,c) AS SELECT * FROM t1 JOIN t1 A ORDER BY sum(0) OVER(PARTITION BY 0);
+  CREATE TRIGGER x1 INSTEAD OF UPDATE ON t2 BEGIN SELECT true; END;
+}
+do_execsql_test 73.1 {
+  SELECT * FROM t2;
+} {1 1 1 2 1 4 2 1 2 2 2 4 4 1 4 2 4 4}
+do_execsql_test 73.2 {
+  UPDATE t2 SET c=99 WHERE b=4 RETURNING *;
+} {4 99 4 99 4 99}
+do_execsql_test 73.3 {
+  SELECT *, nth_value(15,2) OVER() FROM t2, t1 WHERE b=4;
+} {
+  4 1 1 15
+  4 2 1 15
+  4 4 1 15
+  4 1 2 15
+  4 2 2 15
+  4 4 2 15
+  4 1 4 15
+  4 2 4 15
+  4 4 4 15
+}
+do_execsql_test 73.4 {
+  UPDATE t2 SET c=nth_value(15,2) OVER() FROM (SELECT * FROM t1) WHERE b=4 RETURNING *;
+} {
+  4 15
+  4 15
+  4 15
+  4 15
+  4 15
+  4 15
+  4 15
+  4 15
+  4 15
+}
+do_execsql_test 73.5 {
+  DROP TRIGGER x1;
+}
+do_catchsql_test 73.6 {
+  UPDATE t2 SET c=99 WHERE b=4 RETURNING *;
+} {1 {cannot modify t2 because it is a view}}
+do_catchsql_test 73.7 {
+  UPDATE t2 SET c=nth_value(15,2) OVER() FROM (SELECT * FROM t1) WHERE b=4 RETURNING *;
+} {1 {cannot modify t2 because it is a view}}
+
+# 2023-03-28 https://sqlite.org/forum/forumpost/bad532820c
+#
+reset_db
+do_execsql_test 74.0 {
+  CREATE TABLE t1 (a INT, b INT);
+  CREATE TABLE t2 (c INT, d INT);
+  CREATE INDEX idx ON t1(abs(a));
+  INSERT INTO t1 VALUES(1,2),(3,4);
+  INSERT INTO t2 VALUES(5,6),(7,8);
+}
+do_execsql_test 74.1 {
+  SELECT (
+    SELECT count( a ) FROM t2 LIMIT 1
+  )
+  FROM t1;
+} {2}  ;# Verified using PG 14.2
+do_execsql_test 74.2 {
+  SELECT (
+    SELECT count( a+c ) FROM t2 LIMIT 1
+  )
+  FROM t1;
+} {2 2}  ;# verified on PG 14.2.  Crashes PG 9.6!
+do_execsql_test 74.3 {
+  SELECT (
+    SELECT count( ( SELECT(sum(0) OVER(ORDER BY c, abs(a))) ) )
+      FROM t2 GROUP BY c LIMIT 1
+  ) 
+  FROM t1;
+} {1 1}  ;# verified on PG 14.2
+do_execsql_test 74.4 {
+  /* Original test case reported in https://sqlite.org/forum/forumpost/bad532820c
+  CREATE TABLE v0 (c1);
+  CREATE INDEX i ON v0 (c1, c1=1);
+  SELECT 0 FROM v0 AS a1
+   WHERE (SELECT count((SELECT(sum(0) OVER(PARTITION BY(c1), (a1.c1=1) ))))
+            FROM v0
+           GROUP BY hex(0))
+     AND a1.c1=0;
+} {}
+
+# 2023-04-11 https://sqlite.org/forum/forumpost/6c5678e3da
+# An ALWAYS() turns out to be sometimes false.
+#
+do_execsql_test 75.0 {
+  DROP TABLE t1;
+  CREATE TABLE t1(a INT, b INT);
+  CREATE INDEX t1x ON t1(a+b);
+}
+do_catchsql_test 75.1 {
+  SELECT count((SELECT count(a0.a+a0.b) ORDER BY sum(0) OVER (PARTITION BY 0)))
+    FROM t1 AS a0 JOIN t1 AS a1
+   GROUP BY a1.a;
+} {1 {misuse of aggregate: count()}}
+
+# 2023-04-13 https://sqlite.org/forum/forumpost/0d48347967
+reset_db
+do_execsql_test 76.0 {
+  CREATE TABLE t1(a INT, b INT);
+  INSERT INTO t1(a,b) VALUES (111,222),(111,223),(118,229);
+  CREATE INDEX t1a ON t1(a);
+  CREATE TABLE t2(x INT);
+  INSERT INTO t2 VALUES (333),(444),(555);
+}
+do_execsql_test 76.1 {
+  SELECT c, (SELECT c + sum(1) OVER ()) AS "res"
+    FROM t2 LEFT JOIN (SELECT +a AS c FROM t1) AS v1 ON true
+   GROUP BY c
+   ORDER by c;
+} {111 112 118 119}
+# ^^^^^^^^^^^^^^^^^-- results verified against PG 14.2
+
+do_execsql_test 76.2 {
+  CREATE TABLE t3(x);
+  CREATE TABLE t4(y);
+  INSERT INTO t3 VALUES(100), (200), (400);
+  INSERT INTO t4 VALUES(100), (300), (400);
+}
+do_execsql_test 76.3 {
+  SELECT (SELECT y+sum(0) OVER ()) FROM t3 LEFT JOIN t4 ON x=y;
+} {100 {} 400}
+do_execsql_test 76.4 {
+  SELECT (SELECT y+sum(0) OVER ()) FROM t3 LEFT JOIN t4 ON x=y GROUP BY x;
+} {100 {} 400}
+do_execsql_test 76.5 {
+  SELECT (SELECT max(y)+sum(0) OVER ()) FROM t3 LEFT JOIN t4 ON x=y GROUP BY x;
+} {100 {} 400}
+
+# 2023-05-23 https://sqlite.org/forum/forumpost/fbfe330a20
+#
+reset_db
+do_execsql_test 77.1 {
+  CREATE TABLE t1(x INT);
+  CREATE INDEX t1x ON t1(likely(x));
+  INSERT INTO t1 VALUES(1),(2),(4),(8);
+}
+do_execsql_test 77.2 {
+  SELECT max(~likely(x)) FILTER (WHERE true) FROM t1 INDEXED BY t1x GROUP BY x;
+} {-2 -3 -5 -9}
+
+# 2024-05-23 https://sqlite.org/forum/forumpost/bf8f43aa522c2299
+#
+# A bug in group_concat() when used as a window function, reported
+# just hours after the 3.46.0 release, though first appearing
+# in 3.28.0.
+#
+# When used as a window function, a group_concat() was not
+# correctly distinguishing between NULL and empty-string for
+# its return value.
+#
+do_execsql_test 78.1 {
+  SELECT quote(group_concat(x) OVER ()) FROM (SELECT '' AS x);
+} ''
+do_execsql_test 78.2 {
+  SELECT quote(group_concat(x) OVER (
+      ORDER BY y RANGE BETWEEN 1 FOLLOWING AND 2 FOLLOWING
+    )) FROM (SELECT 'abc' AS x, 1 AS y);
+} NULL
+
+finish_test
diff --git a/test/window2.tcl b/test/window2.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..4c18b7970daeb0d65abedd4fc15b038bcc4dc1b2
--- /dev/null
+++ b/test/window2.tcl
@@ -0,0 +1,494 @@
+# 2018 May 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname $argv0] pg_common.tcl]
+
+#=========================================================================
+
+
+start_test window2 "2018 May 19"
+
+ifcapable !windowfunc
+
+execsql_test 1.0 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b TEXT, c TEXT, d INTEGER);
+  INSERT INTO t1 VALUES(1, 'odd',  'one',   1);
+  INSERT INTO t1 VALUES(2, 'even', 'two',   2);
+  INSERT INTO t1 VALUES(3, 'odd',  'three', 3);
+  INSERT INTO t1 VALUES(4, 'even', 'four',  4);
+  INSERT INTO t1 VALUES(5, 'odd',  'five',  5);
+  INSERT INTO t1 VALUES(6, 'even', 'six',   6);
+}
+
+execsql_test 1.1 {
+  SELECT c, sum(d) OVER (PARTITION BY b ORDER BY c) FROM t1;
+}
+
+execsql_test 1.2 {
+  SELECT sum(d) OVER () FROM t1;
+}
+
+execsql_test 1.3 {
+  SELECT sum(d) OVER (PARTITION BY b) FROM t1;
+}
+
+==========
+execsql_test 2.1 {
+  SELECT a, sum(d) OVER (
+    ORDER BY d
+    ROWS BETWEEN 1000 PRECEDING AND 1 FOLLOWING
+  ) FROM t1
+}
+execsql_test 2.2 {
+  SELECT a, sum(d) OVER (
+    ORDER BY d
+    ROWS BETWEEN 1000 PRECEDING AND 1000 FOLLOWING
+  ) FROM t1
+}
+execsql_test 2.3 {
+  SELECT a, sum(d) OVER (
+    ORDER BY d
+    ROWS BETWEEN 1 PRECEDING AND 1000 FOLLOWING
+  ) FROM t1
+}
+execsql_test 2.4 {
+  SELECT a, sum(d) OVER (
+    ORDER BY d
+    ROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING
+  ) FROM t1
+}
+execsql_test 2.5 {
+  SELECT a, sum(d) OVER (
+    ORDER BY d
+    ROWS BETWEEN 1 PRECEDING AND 0 FOLLOWING
+  ) FROM t1
+}
+
+execsql_test 2.6 {
+  SELECT a, sum(d) OVER (
+    PARTITION BY b
+    ORDER BY d 
+    ROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING
+  ) FROM t1
+}
+
+execsql_test 2.7 {
+  SELECT a, sum(d) OVER (
+    PARTITION BY b
+    ORDER BY d 
+    ROWS BETWEEN 0 PRECEDING AND 0 FOLLOWING
+  ) FROM t1
+}
+
+execsql_test 2.8 {
+  SELECT a, sum(d) OVER (
+    ORDER BY d 
+    ROWS BETWEEN CURRENT ROW AND 2 FOLLOWING
+  ) FROM t1
+}
+
+execsql_test 2.9 {
+  SELECT a, sum(d) OVER (
+    ORDER BY d 
+    ROWS BETWEEN UNBOUNDED PRECEDING AND 2 FOLLOWING
+  ) FROM t1
+}
+
+execsql_test 2.10 {
+  SELECT a, sum(d) OVER (
+    ORDER BY d 
+    ROWS BETWEEN CURRENT ROW AND 2 FOLLOWING
+  ) FROM t1
+}
+
+execsql_test 2.11 {
+  SELECT a, sum(d) OVER (
+    ORDER BY d 
+    ROWS BETWEEN 2 PRECEDING AND CURRENT ROW
+  ) FROM t1
+}
+
+execsql_test 2.13 {
+  SELECT a, sum(d) OVER (
+    ORDER BY d 
+    ROWS BETWEEN 2 PRECEDING AND UNBOUNDED FOLLOWING
+  ) FROM t1
+}
+
+execsql_test 2.14 {
+  SELECT a, sum(d) OVER (
+    ORDER BY d 
+    ROWS BETWEEN 3 PRECEDING AND 1 PRECEDING
+  ) FROM t1
+}
+
+execsql_test 2.15 {
+  SELECT a, sum(d) OVER (
+    PARTITION BY b
+    ORDER BY d 
+    ROWS BETWEEN 1 PRECEDING AND 0 PRECEDING
+  ) FROM t1
+}
+
+execsql_test 2.16 {
+  SELECT a, sum(d) OVER (
+    PARTITION BY b
+    ORDER BY d 
+    ROWS BETWEEN 1 PRECEDING AND 1 PRECEDING
+  ) FROM t1
+}
+
+execsql_test 2.17 {
+  SELECT a, sum(d) OVER (
+    PARTITION BY b
+    ORDER BY d 
+    ROWS BETWEEN 1 PRECEDING AND 2 PRECEDING
+  ) FROM t1
+}
+
+execsql_test 2.18 {
+  SELECT a, sum(d) OVER (
+    PARTITION BY b
+    ORDER BY d 
+    ROWS BETWEEN UNBOUNDED PRECEDING AND 2 PRECEDING
+  ) FROM t1
+}
+
+execsql_test 2.19 {
+  SELECT a, sum(d) OVER (
+    PARTITION BY b
+    ORDER BY d 
+    ROWS BETWEEN 1 FOLLOWING AND 3 FOLLOWING
+  ) FROM t1
+}
+
+execsql_test 2.20 {
+  SELECT a, sum(d) OVER (
+    ORDER BY d 
+    ROWS BETWEEN 1 FOLLOWING AND 2 FOLLOWING
+  ) FROM t1
+}
+
+execsql_test 2.21 {
+  SELECT a, sum(d) OVER (
+    ORDER BY d 
+    ROWS BETWEEN 1 FOLLOWING AND UNBOUNDED FOLLOWING
+  ) FROM t1
+}
+
+execsql_test 2.22 {
+  SELECT a, sum(d) OVER (
+    PARTITION BY b
+    ORDER BY d 
+    ROWS BETWEEN 1 FOLLOWING AND UNBOUNDED FOLLOWING
+  ) FROM t1
+}
+
+execsql_test 2.23 {
+  SELECT a, sum(d) OVER (
+    ORDER BY d 
+    ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+  ) FROM t1
+}
+
+execsql_test 2.24 {
+  SELECT a, sum(d) OVER (
+    PARTITION BY a%2
+    ORDER BY d 
+    ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+  ) FROM t1
+}
+
+execsql_test 2.25 {
+  SELECT a, sum(d) OVER (
+    ORDER BY d 
+    ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING
+  ) FROM t1
+}
+
+execsql_test 2.26 {
+  SELECT a, sum(d) OVER (
+    PARTITION BY b
+    ORDER BY d 
+    ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING
+  ) FROM t1
+}
+
+execsql_test 2.27 {
+  SELECT a, sum(d) OVER (
+    ORDER BY d 
+    ROWS BETWEEN CURRENT ROW AND CURRENT ROW
+  ) FROM t1
+}
+
+execsql_test 2.28 {
+  SELECT a, sum(d) OVER (
+    PARTITION BY b
+    ORDER BY d 
+    ROWS BETWEEN CURRENT ROW AND CURRENT ROW
+  ) FROM t1
+}
+
+execsql_test 2.29 {
+  SELECT a, sum(d) OVER (
+    ORDER BY d 
+    RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+  ) FROM t1
+}
+execsql_test 2.30 {
+  SELECT a, sum(d) OVER (
+    ORDER BY b 
+    RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+  ) FROM t1
+}
+
+execsql_test 3.1 {
+  SELECT a, sum(d) OVER (
+    PARTITION BY b ORDER BY d
+    RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+  ) FROM t1
+}
+
+execsql_test 3.2 {
+  SELECT a, sum(d) OVER (
+    ORDER BY b
+    RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+  ) FROM t1
+}
+
+execsql_test 3.3 {
+  SELECT a, sum(d) OVER (
+    ORDER BY d
+    ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING
+  ) FROM t1
+}
+
+execsql_test 3.4 {
+  SELECT a, sum(d) OVER (
+    ORDER BY d/2
+    ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW
+  ) FROM t1
+}
+
+#puts $::fd finish_test
+
+==========
+
+execsql_test 4.0 {
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t2(a INTEGER PRIMARY KEY, b INTEGER);
+  INSERT INTO t2(a, b) VALUES
+  (1,0), (2,74), (3,41), (4,74), (5,23), (6,99), (7,26), (8,33), (9,2),
+  (10,89), (11,81), (12,96), (13,59), (14,38), (15,68), (16,39), (17,62),
+  (18,91), (19,46), (20,6), (21,99), (22,97), (23,27), (24,46), (25,78),
+  (26,54), (27,97), (28,8), (29,67), (30,29), (31,93), (32,84), (33,77),
+  (34,23), (35,16), (36,16), (37,93), (38,65), (39,35), (40,47), (41,7),
+  (42,86), (43,74), (44,61), (45,91), (46,85), (47,24), (48,85), (49,43),
+  (50,59), (51,12), (52,32), (53,56), (54,3), (55,91), (56,22), (57,90),
+  (58,55), (59,15), (60,28), (61,89), (62,25), (63,47), (64,1), (65,56),
+  (66,40), (67,43), (68,56), (69,16), (70,75), (71,36), (72,89), (73,98),
+  (74,76), (75,81), (76,4), (77,94), (78,42), (79,30), (80,78), (81,33),
+  (82,29), (83,53), (84,63), (85,2), (86,87), (87,37), (88,80), (89,84),
+  (90,72), (91,41), (92,9), (93,61), (94,73), (95,95), (96,65), (97,13),
+  (98,58), (99,96), (100,98), (101,1), (102,21), (103,74), (104,65), (105,35),
+  (106,5), (107,73), (108,11), (109,51), (110,87), (111,41), (112,12), (113,8),
+  (114,20), (115,31), (116,31), (117,15), (118,95), (119,22), (120,73), 
+  (121,79), (122,88), (123,34), (124,8), (125,11), (126,49), (127,34), 
+  (128,90), (129,59), (130,96), (131,60), (132,55), (133,75), (134,77),
+  (135,44), (136,2), (137,7), (138,85), (139,57), (140,74), (141,29), (142,70),
+  (143,59), (144,19), (145,39), (146,26), (147,26), (148,47), (149,80),
+  (150,90), (151,36), (152,58), (153,47), (154,9), (155,72), (156,72), (157,66),
+  (158,33), (159,93), (160,75), (161,64), (162,81), (163,9), (164,23), (165,37),
+  (166,13), (167,12), (168,14), (169,62), (170,91), (171,36), (172,91),
+  (173,33), (174,15), (175,34), (176,36), (177,99), (178,3), (179,95), (180,69),
+  (181,58), (182,52), (183,30), (184,50), (185,84), (186,10), (187,84),
+  (188,33), (189,21), (190,39), (191,44), (192,58), (193,30), (194,38),
+  (195,34), (196,83), (197,27), (198,82), (199,17), (200,7);
+}
+
+execsql_test 4.1 {
+  SELECT a, sum(b) OVER (
+    PARTITION BY (b%10)
+    ORDER BY b
+  ) FROM t2 ORDER BY a;
+}
+
+execsql_test 4.2 {
+  SELECT a, sum(b) OVER (
+    PARTITION BY (b%10)
+    ORDER BY b
+    RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW
+  ) FROM t2 ORDER BY a;
+}
+
+execsql_test 4.3 {
+  SELECT b, sum(b) OVER (
+    ORDER BY b
+    ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW
+  ) FROM t2 ORDER BY b;
+}
+
+execsql_test 4.4 {
+  SELECT b, sum(b) OVER (
+    ORDER BY b
+    RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING
+  ) FROM t2 ORDER BY b;
+}
+
+execsql_test 4.5 {
+  SELECT b, sum(b) OVER (
+    ORDER BY b
+    RANGE BETWEEN CURRENT ROW AND CURRENT ROW
+  ) FROM t2 ORDER BY b;
+}
+
+execsql_test 4.6.1 {
+  SELECT b, sum(b) OVER (
+    RANGE BETWEEN CURRENT ROW AND CURRENT ROW
+  ) FROM t2 ORDER BY b;
+}
+execsql_test 4.6.2 {
+  SELECT b, sum(b) OVER () FROM t2 ORDER BY b;
+}
+execsql_test 4.6.3 {
+  SELECT b, sum(b) OVER (
+    RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING
+  ) FROM t2 ORDER BY b;
+}
+execsql_test 4.6.4 {
+  SELECT b, sum(b) OVER (
+    RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+  ) FROM t2 ORDER BY b;
+}
+
+execsql_test 4.7.1 {
+  SELECT b, sum(b) OVER (
+    ROWS BETWEEN CURRENT ROW AND CURRENT ROW
+  ) FROM t2 ORDER BY 1, 2;
+}
+execsql_test 4.7.2 {
+  SELECT b, sum(b) OVER (
+    ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW
+  ) FROM t2 ORDER BY 1, 2;
+}
+execsql_test 4.7.3 {
+  SELECT b, sum(b) OVER (
+    ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING
+  ) FROM t2 ORDER BY 1, 2;
+}
+execsql_test 4.7.4 {
+  SELECT b, sum(b) OVER (
+    ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+  ) FROM t2 ORDER BY 1, 2;
+}
+
+execsql_test 4.8.1 {
+  SELECT b, sum(b) OVER (
+    ORDER BY a
+    ROWS BETWEEN CURRENT ROW AND CURRENT ROW
+  ) FROM t2 ORDER BY 1, 2;
+}
+execsql_test 4.8.2 {
+  SELECT b, sum(b) OVER (
+    ORDER BY a
+    ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW
+  ) FROM t2 ORDER BY 1, 2;
+}
+execsql_test 4.8.3 {
+  SELECT b, sum(b) OVER (
+    ORDER BY a
+    ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING
+  ) FROM t2 ORDER BY 1, 2;
+}
+execsql_test 4.8.4 {
+  SELECT b, sum(b) OVER (
+    ORDER BY a
+    ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+  ) FROM t2 ORDER BY 1, 2;
+}
+
+execsql_float_test 4.9 {
+  SELECT 
+    rank() OVER win AS rank,
+    cume_dist() OVER win AS cume_dist FROM t1
+  WINDOW win AS (ORDER BY 1);
+}
+
+execsql_test 4.10 {
+  SELECT count(*) OVER (ORDER BY b) FROM t1
+}
+
+execsql_test 4.11 {
+  SELECT count(distinct a) FILTER (WHERE b='odd') FROM t1
+}
+
+==========
+
+execsql_test 5.0 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(x INTEGER, y INTEGER);
+  INSERT INTO t1 VALUES(10, 1);
+  INSERT INTO t1 VALUES(20, 2);
+  INSERT INTO t1 VALUES(3, 3);
+  INSERT INTO t1 VALUES(2, 4);
+  INSERT INTO t1 VALUES(1, 5);
+}
+
+execsql_float_test 5.1 {
+  SELECT avg(x) OVER (ORDER BY y) AS z FROM t1 ORDER BY z;
+}
+
+==========
+
+execsql_test 6.0 {
+  DROP TABLE IF EXISTS t0;
+  CREATE TABLE t0(c0 INTEGER UNIQUE);
+  INSERT INTO t0 VALUES(0);
+}
+execsql_test 6.1 {
+  SELECT DENSE_RANK() OVER(), LAG(0) OVER() FROM t0;
+}
+execsql_test 6.2 {
+  SELECT * FROM t0 WHERE 
+      (0, t0.c0) IN (SELECT DENSE_RANK() OVER(), LAG(0) OVER() FROM t0);
+} 
+
+==========
+
+execsql_test 7.0 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a INTEGER, b INTEGER, c INTEGER);
+  INSERT INTO t1 VALUES(1, 1, 1);
+  INSERT INTO t1 VALUES(1, 2, 2);
+  INSERT INTO t1 VALUES(3, 3, 3);
+  INSERT INTO t1 VALUES(3, 4, 4);
+}
+
+execsql_test 7.1 {
+  SELECT c, sum(c) OVER win1 FROM t1 
+  WINDOW win1 AS (ORDER BY b)
+}
+
+execsql_test 7.2 {
+  SELECT c, sum(c) OVER win1 FROM t1 
+  WINDOW win1 AS (PARTITION BY 1 ORDER BY b)
+}
+
+execsql_test 7.3 {
+  SELECT c, sum(c) OVER win1 FROM t1 
+  WINDOW win1 AS (ORDER BY 1)
+}
+
+finish_test
+
+
diff --git a/test/window2.test b/test/window2.test
new file mode 100644
index 0000000000000000000000000000000000000000..e241d59644969b925daec39ecf720cf745388132
--- /dev/null
+++ b/test/window2.test
@@ -0,0 +1,976 @@
+# 2018 May 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+
+####################################################
+# DO NOT EDIT! THIS FILE IS AUTOMATICALLY GENERATED!
+####################################################
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix window2
+
+ifcapable !windowfunc { finish_test ; return }
+do_execsql_test 1.0 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b TEXT, c TEXT, d INTEGER);
+  INSERT INTO t1 VALUES(1, 'odd',  'one',   1);
+  INSERT INTO t1 VALUES(2, 'even', 'two',   2);
+  INSERT INTO t1 VALUES(3, 'odd',  'three', 3);
+  INSERT INTO t1 VALUES(4, 'even', 'four',  4);
+  INSERT INTO t1 VALUES(5, 'odd',  'five',  5);
+  INSERT INTO t1 VALUES(6, 'even', 'six',   6);
+} {}
+
+do_execsql_test 1.1 {
+  SELECT c, sum(d) OVER (PARTITION BY b ORDER BY c) FROM t1;
+} {four 4   six 10   two 12   five 5   one 6   three 9}
+
+do_execsql_test 1.2 {
+  SELECT sum(d) OVER () FROM t1;
+} {21   21   21   21   21   21}
+
+do_execsql_test 1.3 {
+  SELECT sum(d) OVER (PARTITION BY b) FROM t1;
+} {12   12   12   9   9   9}
+
+#==========================================================================
+
+do_execsql_test 2.1 {
+  SELECT a, sum(d) OVER (
+    ORDER BY d
+    ROWS BETWEEN 1000 PRECEDING AND 1 FOLLOWING
+  ) FROM t1
+} {1 3   2 6   3 10   4 15   5 21   6 21}
+
+do_execsql_test 2.2 {
+  SELECT a, sum(d) OVER (
+    ORDER BY d
+    ROWS BETWEEN 1000 PRECEDING AND 1000 FOLLOWING
+  ) FROM t1
+} {1 21   2 21   3 21   4 21   5 21   6 21}
+
+do_execsql_test 2.3 {
+  SELECT a, sum(d) OVER (
+    ORDER BY d
+    ROWS BETWEEN 1 PRECEDING AND 1000 FOLLOWING
+  ) FROM t1
+} {1 21   2 21   3 20   4 18   5 15   6 11}
+
+do_execsql_test 2.4 {
+  SELECT a, sum(d) OVER (
+    ORDER BY d
+    ROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING
+  ) FROM t1
+} {1 3   2 6   3 9   4 12   5 15   6 11}
+
+do_execsql_test 2.5 {
+  SELECT a, sum(d) OVER (
+    ORDER BY d
+    ROWS BETWEEN 1 PRECEDING AND 0 FOLLOWING
+  ) FROM t1
+} {1 1   2 3   3 5   4 7   5 9   6 11}
+
+do_execsql_test 2.6 {
+  SELECT a, sum(d) OVER (
+    PARTITION BY b
+    ORDER BY d 
+    ROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING
+  ) FROM t1
+} {2 6   4 12   6 10   1 4   3 9   5 8}
+
+do_execsql_test 2.7 {
+  SELECT a, sum(d) OVER (
+    PARTITION BY b
+    ORDER BY d 
+    ROWS BETWEEN 0 PRECEDING AND 0 FOLLOWING
+  ) FROM t1
+} {2 2   4 4   6 6   1 1   3 3   5 5}
+
+do_execsql_test 2.8 {
+  SELECT a, sum(d) OVER (
+    ORDER BY d 
+    ROWS BETWEEN CURRENT ROW AND 2 FOLLOWING
+  ) FROM t1
+} {1 6   2 9   3 12   4 15   5 11   6 6}
+
+do_execsql_test 2.9 {
+  SELECT a, sum(d) OVER (
+    ORDER BY d 
+    ROWS BETWEEN UNBOUNDED PRECEDING AND 2 FOLLOWING
+  ) FROM t1
+} {1 6   2 10   3 15   4 21   5 21   6 21}
+
+do_execsql_test 2.10 {
+  SELECT a, sum(d) OVER (
+    ORDER BY d 
+    ROWS BETWEEN CURRENT ROW AND 2 FOLLOWING
+  ) FROM t1
+} {1 6   2 9   3 12   4 15   5 11   6 6}
+
+do_execsql_test 2.11 {
+  SELECT a, sum(d) OVER (
+    ORDER BY d 
+    ROWS BETWEEN 2 PRECEDING AND CURRENT ROW
+  ) FROM t1
+} {1 1   2 3   3 6   4 9   5 12   6 15}
+
+do_execsql_test 2.13 {
+  SELECT a, sum(d) OVER (
+    ORDER BY d 
+    ROWS BETWEEN 2 PRECEDING AND UNBOUNDED FOLLOWING
+  ) FROM t1
+} {1 21   2 21   3 21   4 20   5 18   6 15}
+
+do_execsql_test 2.14 {
+  SELECT a, sum(d) OVER (
+    ORDER BY d 
+    ROWS BETWEEN 3 PRECEDING AND 1 PRECEDING
+  ) FROM t1
+} {1 {}   2 1   3 3   4 6   5 9   6 12}
+
+do_execsql_test 2.15 {
+  SELECT a, sum(d) OVER (
+    PARTITION BY b
+    ORDER BY d 
+    ROWS BETWEEN 1 PRECEDING AND 0 PRECEDING
+  ) FROM t1
+} {2 2   4 6   6 10   1 1   3 4   5 8}
+
+do_execsql_test 2.16 {
+  SELECT a, sum(d) OVER (
+    PARTITION BY b
+    ORDER BY d 
+    ROWS BETWEEN 1 PRECEDING AND 1 PRECEDING
+  ) FROM t1
+} {2 {}   4 2   6 4   1 {}   3 1   5 3}
+
+do_execsql_test 2.17 {
+  SELECT a, sum(d) OVER (
+    PARTITION BY b
+    ORDER BY d 
+    ROWS BETWEEN 1 PRECEDING AND 2 PRECEDING
+  ) FROM t1
+} {2 {}   4 {}   6 {}   1 {}   3 {}   5 {}}
+
+do_execsql_test 2.18 {
+  SELECT a, sum(d) OVER (
+    PARTITION BY b
+    ORDER BY d 
+    ROWS BETWEEN UNBOUNDED PRECEDING AND 2 PRECEDING
+  ) FROM t1
+} {2 {}   4 {}   6 2   1 {}   3 {}   5 1}
+
+do_execsql_test 2.19 {
+  SELECT a, sum(d) OVER (
+    PARTITION BY b
+    ORDER BY d 
+    ROWS BETWEEN 1 FOLLOWING AND 3 FOLLOWING
+  ) FROM t1
+} {2 10   4 6   6 {}   1 8   3 5   5 {}}
+
+do_execsql_test 2.20 {
+  SELECT a, sum(d) OVER (
+    ORDER BY d 
+    ROWS BETWEEN 1 FOLLOWING AND 2 FOLLOWING
+  ) FROM t1
+} {1 5   2 7   3 9   4 11   5 6   6 {}}
+
+do_execsql_test 2.21 {
+  SELECT a, sum(d) OVER (
+    ORDER BY d 
+    ROWS BETWEEN 1 FOLLOWING AND UNBOUNDED FOLLOWING
+  ) FROM t1
+} {1 20   2 18   3 15   4 11   5 6   6 {}}
+
+do_execsql_test 2.22 {
+  SELECT a, sum(d) OVER (
+    PARTITION BY b
+    ORDER BY d 
+    ROWS BETWEEN 1 FOLLOWING AND UNBOUNDED FOLLOWING
+  ) FROM t1
+} {2 10   4 6   6 {}   1 8   3 5   5 {}}
+
+do_execsql_test 2.23 {
+  SELECT a, sum(d) OVER (
+    ORDER BY d 
+    ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+  ) FROM t1
+} {1 21   2 20   3 18   4 15   5 11   6 6}
+
+do_execsql_test 2.24 {
+  SELECT a, sum(d) OVER (
+    PARTITION BY a%2
+    ORDER BY d 
+    ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+  ) FROM t1
+} {2 12   4 10   6 6   1 9   3 8   5 5}
+
+do_execsql_test 2.25 {
+  SELECT a, sum(d) OVER (
+    ORDER BY d 
+    ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING
+  ) FROM t1
+} {1 21   2 21   3 21   4 21   5 21   6 21}
+
+do_execsql_test 2.26 {
+  SELECT a, sum(d) OVER (
+    PARTITION BY b
+    ORDER BY d 
+    ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING
+  ) FROM t1
+} {2 12   4 12   6 12   1 9   3 9   5 9}
+
+do_execsql_test 2.27 {
+  SELECT a, sum(d) OVER (
+    ORDER BY d 
+    ROWS BETWEEN CURRENT ROW AND CURRENT ROW
+  ) FROM t1
+} {1 1   2 2   3 3   4 4   5 5   6 6}
+
+do_execsql_test 2.28 {
+  SELECT a, sum(d) OVER (
+    PARTITION BY b
+    ORDER BY d 
+    ROWS BETWEEN CURRENT ROW AND CURRENT ROW
+  ) FROM t1
+} {2 2   4 4   6 6   1 1   3 3   5 5}
+
+do_execsql_test 2.29 {
+  SELECT a, sum(d) OVER (
+    ORDER BY d 
+    RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+  ) FROM t1
+} {1 21   2 20   3 18   4 15   5 11   6 6}
+
+do_execsql_test 2.30 {
+  SELECT a, sum(d) OVER (
+    ORDER BY b 
+    RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+  ) FROM t1
+} {2 21   4 21   6 21   1 9   3 9   5 9}
+
+do_execsql_test 3.1 {
+  SELECT a, sum(d) OVER (
+    PARTITION BY b ORDER BY d
+    RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+  ) FROM t1
+} {2 12   4 10   6 6   1 9   3 8   5 5}
+
+do_execsql_test 3.2 {
+  SELECT a, sum(d) OVER (
+    ORDER BY b
+    RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+  ) FROM t1
+} {2 21   4 21   6 21   1 9   3 9   5 9}
+
+do_execsql_test 3.3 {
+  SELECT a, sum(d) OVER (
+    ORDER BY d
+    ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING
+  ) FROM t1
+} {1 21   2 21   3 21   4 21   5 21   6 21}
+
+do_execsql_test 3.4 {
+  SELECT a, sum(d) OVER (
+    ORDER BY d/2
+    ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW
+  ) FROM t1
+} {1 1   2 3   3 6   4 10   5 15   6 21}
+
+#==========================================================================
+
+do_execsql_test 4.0 {
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t2(a INTEGER PRIMARY KEY, b INTEGER);
+  INSERT INTO t2(a, b) VALUES
+  (1,0), (2,74), (3,41), (4,74), (5,23), (6,99), (7,26), (8,33), (9,2),
+  (10,89), (11,81), (12,96), (13,59), (14,38), (15,68), (16,39), (17,62),
+  (18,91), (19,46), (20,6), (21,99), (22,97), (23,27), (24,46), (25,78),
+  (26,54), (27,97), (28,8), (29,67), (30,29), (31,93), (32,84), (33,77),
+  (34,23), (35,16), (36,16), (37,93), (38,65), (39,35), (40,47), (41,7),
+  (42,86), (43,74), (44,61), (45,91), (46,85), (47,24), (48,85), (49,43),
+  (50,59), (51,12), (52,32), (53,56), (54,3), (55,91), (56,22), (57,90),
+  (58,55), (59,15), (60,28), (61,89), (62,25), (63,47), (64,1), (65,56),
+  (66,40), (67,43), (68,56), (69,16), (70,75), (71,36), (72,89), (73,98),
+  (74,76), (75,81), (76,4), (77,94), (78,42), (79,30), (80,78), (81,33),
+  (82,29), (83,53), (84,63), (85,2), (86,87), (87,37), (88,80), (89,84),
+  (90,72), (91,41), (92,9), (93,61), (94,73), (95,95), (96,65), (97,13),
+  (98,58), (99,96), (100,98), (101,1), (102,21), (103,74), (104,65), (105,35),
+  (106,5), (107,73), (108,11), (109,51), (110,87), (111,41), (112,12), (113,8),
+  (114,20), (115,31), (116,31), (117,15), (118,95), (119,22), (120,73), 
+  (121,79), (122,88), (123,34), (124,8), (125,11), (126,49), (127,34), 
+  (128,90), (129,59), (130,96), (131,60), (132,55), (133,75), (134,77),
+  (135,44), (136,2), (137,7), (138,85), (139,57), (140,74), (141,29), (142,70),
+  (143,59), (144,19), (145,39), (146,26), (147,26), (148,47), (149,80),
+  (150,90), (151,36), (152,58), (153,47), (154,9), (155,72), (156,72), (157,66),
+  (158,33), (159,93), (160,75), (161,64), (162,81), (163,9), (164,23), (165,37),
+  (166,13), (167,12), (168,14), (169,62), (170,91), (171,36), (172,91),
+  (173,33), (174,15), (175,34), (176,36), (177,99), (178,3), (179,95), (180,69),
+  (181,58), (182,52), (183,30), (184,50), (185,84), (186,10), (187,84),
+  (188,33), (189,21), (190,39), (191,44), (192,58), (193,30), (194,38),
+  (195,34), (196,83), (197,27), (198,82), (199,17), (200,7);
+} {}
+
+do_execsql_test 4.1 {
+  SELECT a, sum(b) OVER (
+    PARTITION BY (b%10)
+    ORDER BY b
+  ) FROM t2 ORDER BY a;
+} {1 0   2 754   3 251   4 754   5 101   6 1247   7 132   8 266   9 6   10 950
+  11 667   12 1052   13 535   14 128   15 428   16 250   17 336   18 1122
+  19 368   20 6   21 1247   22 1000   23 92   24 368   25 584   26 320
+  27 1000   28 24   29 478   30 133   31 1049   32 1090   33 632   34 101
+  35 54   36 54   37 1049   38 450   39 145   40 354   41 21   42 764
+  43 754   44 424   45 1122   46 930   47 42   48 930   49 352   50 535
+  51 42   52 118   53 536   54 6   55 1122   56 86   57 770   58 255   59 50
+  60 52   61 950   62 75   63 354   64 2   65 536   66 160   67 352   68 536
+  69 54   70 675   71 276   72 950   73 868   74 678   75 667   76 4
+  77 1184   78 160   79 120   80 584   81 266   82 133   83 405   84 468
+  85 6   86 806   87 166   88 500   89 1090   90 552   91 251   92 27
+  93 424   94 687   95 1215   96 450   97 32   98 360   99 1052   100 868
+  101 2   102 66   103 754   104 450   105 145   106 5   107 687   108 24
+  109 302   110 806   111 251   112 42   113 24   114 30   115 128   116 128
+  117 50   118 1215   119 86   120 687   121 683   122 672   123 178   124 24
+  125 24   126 299   127 178   128 770   129 535   130 1052   131 270
+  132 255   133 675   134 632   135 266   136 6   137 21   138 930   139 411
+  140 754   141 133   142 340   143 535   144 46   145 250   146 132
+  147 132   148 354   149 500   150 770   151 276   152 360   153 354
+  154 27   155 552   156 552   157 602   158 266   159 1049   160 675
+  161 384   162 667   163 27   164 101   165 166   166 32   167 42   168 18
+  169 336   170 1122   171 276   172 1122   173 266   174 50   175 178
+  176 276   177 1247   178 6   179 1215   180 604   181 360   182 212
+  183 120   184 210   185 1090   186 10   187 1090   188 266   189 66
+  190 250   191 266   192 360   193 120   194 128   195 178   196 770
+  197 92   198 634   199 38   200 21}
+
+do_execsql_test 4.2 {
+  SELECT a, sum(b) OVER (
+    PARTITION BY (b%10)
+    ORDER BY b
+    RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW
+  ) FROM t2 ORDER BY a;
+} {1 0   2 754   3 251   4 754   5 101   6 1247   7 132   8 266   9 6   10 950
+  11 667   12 1052   13 535   14 128   15 428   16 250   17 336   18 1122
+  19 368   20 6   21 1247   22 1000   23 92   24 368   25 584   26 320
+  27 1000   28 24   29 478   30 133   31 1049   32 1090   33 632   34 101
+  35 54   36 54   37 1049   38 450   39 145   40 354   41 21   42 764
+  43 754   44 424   45 1122   46 930   47 42   48 930   49 352   50 535
+  51 42   52 118   53 536   54 6   55 1122   56 86   57 770   58 255   59 50
+  60 52   61 950   62 75   63 354   64 2   65 536   66 160   67 352   68 536
+  69 54   70 675   71 276   72 950   73 868   74 678   75 667   76 4
+  77 1184   78 160   79 120   80 584   81 266   82 133   83 405   84 468
+  85 6   86 806   87 166   88 500   89 1090   90 552   91 251   92 27
+  93 424   94 687   95 1215   96 450   97 32   98 360   99 1052   100 868
+  101 2   102 66   103 754   104 450   105 145   106 5   107 687   108 24
+  109 302   110 806   111 251   112 42   113 24   114 30   115 128   116 128
+  117 50   118 1215   119 86   120 687   121 683   122 672   123 178   124 24
+  125 24   126 299   127 178   128 770   129 535   130 1052   131 270
+  132 255   133 675   134 632   135 266   136 6   137 21   138 930   139 411
+  140 754   141 133   142 340   143 535   144 46   145 250   146 132
+  147 132   148 354   149 500   150 770   151 276   152 360   153 354
+  154 27   155 552   156 552   157 602   158 266   159 1049   160 675
+  161 384   162 667   163 27   164 101   165 166   166 32   167 42   168 18
+  169 336   170 1122   171 276   172 1122   173 266   174 50   175 178
+  176 276   177 1247   178 6   179 1215   180 604   181 360   182 212
+  183 120   184 210   185 1090   186 10   187 1090   188 266   189 66
+  190 250   191 266   192 360   193 120   194 128   195 178   196 770
+  197 92   198 634   199 38   200 21}
+
+do_execsql_test 4.3 {
+  SELECT b, sum(b) OVER (
+    ORDER BY b
+    ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW
+  ) FROM t2 ORDER BY b;
+} {0 0   1 1   1 2   2 4   2 6   2 8   3 11   3 14   4 18   5 23   6 29   7 36
+  7 43   7 50   8 58   8 66   8 74   9 83   9 92   9 101   10 111   11 122
+  11 133   12 145   12 157   12 169   13 182   13 195   14 209   15 224
+  15 239   15 254   16 270   16 286   16 302   17 319   19 338   20 358
+  21 379   21 400   22 422   22 444   23 467   23 490   23 513   24 537
+  25 562   26 588   26 614   26 640   27 667   27 694   28 722   29 751
+  29 780   29 809   30 839   30 869   30 899   31 930   31 961   32 993
+  33 1026   33 1059   33 1092   33 1125   33 1158   34 1192   34 1226
+  34 1260   34 1294   35 1329   35 1364   36 1400   36 1436   36 1472
+  36 1508   37 1545   37 1582   38 1620   38 1658   39 1697   39 1736
+  39 1775   40 1815   41 1856   41 1897   41 1938   42 1980   43 2023
+  43 2066   44 2110   44 2154   46 2200   46 2246   47 2293   47 2340
+  47 2387   47 2434   49 2483   50 2533   51 2584   52 2636   53 2689
+  54 2743   55 2798   55 2853   56 2909   56 2965   56 3021   57 3078
+  58 3136   58 3194   58 3252   58 3310   59 3369   59 3428   59 3487
+  59 3546   60 3606   61 3667   61 3728   62 3790   62 3852   63 3915
+  64 3979   65 4044   65 4109   65 4174   66 4240   67 4307   68 4375
+  69 4444   70 4514   72 4586   72 4658   72 4730   73 4803   73 4876
+  73 4949   74 5023   74 5097   74 5171   74 5245   74 5319   75 5394
+  75 5469   75 5544   76 5620   77 5697   77 5774   78 5852   78 5930
+  79 6009   80 6089   80 6169   81 6250   81 6331   81 6412   82 6494
+  83 6577   84 6661   84 6745   84 6829   84 6913   85 6998   85 7083
+  85 7168   86 7254   87 7341   87 7428   88 7516   89 7605   89 7694
+  89 7783   90 7873   90 7963   90 8053   91 8144   91 8235   91 8326
+  91 8417   91 8508   93 8601   93 8694   93 8787   94 8881   95 8976
+  95 9071   95 9166   96 9262   96 9358   96 9454   97 9551   97 9648
+  98 9746   98 9844   99 9943   99 10042   99 10141}
+
+do_execsql_test 4.4 {
+  SELECT b, sum(b) OVER (
+    ORDER BY b
+    RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING
+  ) FROM t2 ORDER BY b;
+} {0 10141   1 10141   1 10141   2 10141   2 10141   2 10141   3 10141
+  3 10141   4 10141   5 10141   6 10141   7 10141   7 10141   7 10141
+  8 10141   8 10141   8 10141   9 10141   9 10141   9 10141   10 10141
+  11 10141   11 10141   12 10141   12 10141   12 10141   13 10141   13 10141
+  14 10141   15 10141   15 10141   15 10141   16 10141   16 10141   16 10141
+  17 10141   19 10141   20 10141   21 10141   21 10141   22 10141   22 10141
+  23 10141   23 10141   23 10141   24 10141   25 10141   26 10141   26 10141
+  26 10141   27 10141   27 10141   28 10141   29 10141   29 10141   29 10141
+  30 10141   30 10141   30 10141   31 10141   31 10141   32 10141   33 10141
+  33 10141   33 10141   33 10141   33 10141   34 10141   34 10141   34 10141
+  34 10141   35 10141   35 10141   36 10141   36 10141   36 10141   36 10141
+  37 10141   37 10141   38 10141   38 10141   39 10141   39 10141   39 10141
+  40 10141   41 10141   41 10141   41 10141   42 10141   43 10141   43 10141
+  44 10141   44 10141   46 10141   46 10141   47 10141   47 10141   47 10141
+  47 10141   49 10141   50 10141   51 10141   52 10141   53 10141   54 10141
+  55 10141   55 10141   56 10141   56 10141   56 10141   57 10141   58 10141
+  58 10141   58 10141   58 10141   59 10141   59 10141   59 10141   59 10141
+  60 10141   61 10141   61 10141   62 10141   62 10141   63 10141   64 10141
+  65 10141   65 10141   65 10141   66 10141   67 10141   68 10141   69 10141
+  70 10141   72 10141   72 10141   72 10141   73 10141   73 10141   73 10141
+  74 10141   74 10141   74 10141   74 10141   74 10141   75 10141   75 10141
+  75 10141   76 10141   77 10141   77 10141   78 10141   78 10141   79 10141
+  80 10141   80 10141   81 10141   81 10141   81 10141   82 10141   83 10141
+  84 10141   84 10141   84 10141   84 10141   85 10141   85 10141   85 10141
+  86 10141   87 10141   87 10141   88 10141   89 10141   89 10141   89 10141
+  90 10141   90 10141   90 10141   91 10141   91 10141   91 10141   91 10141
+  91 10141   93 10141   93 10141   93 10141   94 10141   95 10141   95 10141
+  95 10141   96 10141   96 10141   96 10141   97 10141   97 10141   98 10141
+  98 10141   99 10141   99 10141   99 10141}
+
+do_execsql_test 4.5 {
+  SELECT b, sum(b) OVER (
+    ORDER BY b
+    RANGE BETWEEN CURRENT ROW AND CURRENT ROW
+  ) FROM t2 ORDER BY b;
+} {0 0   1 2   1 2   2 6   2 6   2 6   3 6   3 6   4 4   5 5   6 6   7 21
+  7 21   7 21   8 24   8 24   8 24   9 27   9 27   9 27   10 10   11 22
+  11 22   12 36   12 36   12 36   13 26   13 26   14 14   15 45   15 45
+  15 45   16 48   16 48   16 48   17 17   19 19   20 20   21 42   21 42
+  22 44   22 44   23 69   23 69   23 69   24 24   25 25   26 78   26 78
+  26 78   27 54   27 54   28 28   29 87   29 87   29 87   30 90   30 90
+  30 90   31 62   31 62   32 32   33 165   33 165   33 165   33 165   33 165
+  34 136   34 136   34 136   34 136   35 70   35 70   36 144   36 144
+  36 144   36 144   37 74   37 74   38 76   38 76   39 117   39 117   39 117
+  40 40   41 123   41 123   41 123   42 42   43 86   43 86   44 88   44 88
+  46 92   46 92   47 188   47 188   47 188   47 188   49 49   50 50   51 51
+  52 52   53 53   54 54   55 110   55 110   56 168   56 168   56 168   57 57
+  58 232   58 232   58 232   58 232   59 236   59 236   59 236   59 236
+  60 60   61 122   61 122   62 124   62 124   63 63   64 64   65 195   65 195
+  65 195   66 66   67 67   68 68   69 69   70 70   72 216   72 216   72 216
+  73 219   73 219   73 219   74 370   74 370   74 370   74 370   74 370
+  75 225   75 225   75 225   76 76   77 154   77 154   78 156   78 156
+  79 79   80 160   80 160   81 243   81 243   81 243   82 82   83 83   84 336
+  84 336   84 336   84 336   85 255   85 255   85 255   86 86   87 174
+  87 174   88 88   89 267   89 267   89 267   90 270   90 270   90 270
+  91 455   91 455   91 455   91 455   91 455   93 279   93 279   93 279
+  94 94   95 285   95 285   95 285   96 288   96 288   96 288   97 194
+  97 194   98 196   98 196   99 297   99 297   99 297}
+
+do_execsql_test 4.6.1 {
+  SELECT b, sum(b) OVER (
+    RANGE BETWEEN CURRENT ROW AND CURRENT ROW
+  ) FROM t2 ORDER BY b;
+} {0 10141   1 10141   1 10141   2 10141   2 10141   2 10141   3 10141
+  3 10141   4 10141   5 10141   6 10141   7 10141   7 10141   7 10141
+  8 10141   8 10141   8 10141   9 10141   9 10141   9 10141   10 10141
+  11 10141   11 10141   12 10141   12 10141   12 10141   13 10141   13 10141
+  14 10141   15 10141   15 10141   15 10141   16 10141   16 10141   16 10141
+  17 10141   19 10141   20 10141   21 10141   21 10141   22 10141   22 10141
+  23 10141   23 10141   23 10141   24 10141   25 10141   26 10141   26 10141
+  26 10141   27 10141   27 10141   28 10141   29 10141   29 10141   29 10141
+  30 10141   30 10141   30 10141   31 10141   31 10141   32 10141   33 10141
+  33 10141   33 10141   33 10141   33 10141   34 10141   34 10141   34 10141
+  34 10141   35 10141   35 10141   36 10141   36 10141   36 10141   36 10141
+  37 10141   37 10141   38 10141   38 10141   39 10141   39 10141   39 10141
+  40 10141   41 10141   41 10141   41 10141   42 10141   43 10141   43 10141
+  44 10141   44 10141   46 10141   46 10141   47 10141   47 10141   47 10141
+  47 10141   49 10141   50 10141   51 10141   52 10141   53 10141   54 10141
+  55 10141   55 10141   56 10141   56 10141   56 10141   57 10141   58 10141
+  58 10141   58 10141   58 10141   59 10141   59 10141   59 10141   59 10141
+  60 10141   61 10141   61 10141   62 10141   62 10141   63 10141   64 10141
+  65 10141   65 10141   65 10141   66 10141   67 10141   68 10141   69 10141
+  70 10141   72 10141   72 10141   72 10141   73 10141   73 10141   73 10141
+  74 10141   74 10141   74 10141   74 10141   74 10141   75 10141   75 10141
+  75 10141   76 10141   77 10141   77 10141   78 10141   78 10141   79 10141
+  80 10141   80 10141   81 10141   81 10141   81 10141   82 10141   83 10141
+  84 10141   84 10141   84 10141   84 10141   85 10141   85 10141   85 10141
+  86 10141   87 10141   87 10141   88 10141   89 10141   89 10141   89 10141
+  90 10141   90 10141   90 10141   91 10141   91 10141   91 10141   91 10141
+  91 10141   93 10141   93 10141   93 10141   94 10141   95 10141   95 10141
+  95 10141   96 10141   96 10141   96 10141   97 10141   97 10141   98 10141
+  98 10141   99 10141   99 10141   99 10141}
+
+do_execsql_test 4.6.2 {
+  SELECT b, sum(b) OVER () FROM t2 ORDER BY b;
+} {0 10141   1 10141   1 10141   2 10141   2 10141   2 10141   3 10141
+  3 10141   4 10141   5 10141   6 10141   7 10141   7 10141   7 10141
+  8 10141   8 10141   8 10141   9 10141   9 10141   9 10141   10 10141
+  11 10141   11 10141   12 10141   12 10141   12 10141   13 10141   13 10141
+  14 10141   15 10141   15 10141   15 10141   16 10141   16 10141   16 10141
+  17 10141   19 10141   20 10141   21 10141   21 10141   22 10141   22 10141
+  23 10141   23 10141   23 10141   24 10141   25 10141   26 10141   26 10141
+  26 10141   27 10141   27 10141   28 10141   29 10141   29 10141   29 10141
+  30 10141   30 10141   30 10141   31 10141   31 10141   32 10141   33 10141
+  33 10141   33 10141   33 10141   33 10141   34 10141   34 10141   34 10141
+  34 10141   35 10141   35 10141   36 10141   36 10141   36 10141   36 10141
+  37 10141   37 10141   38 10141   38 10141   39 10141   39 10141   39 10141
+  40 10141   41 10141   41 10141   41 10141   42 10141   43 10141   43 10141
+  44 10141   44 10141   46 10141   46 10141   47 10141   47 10141   47 10141
+  47 10141   49 10141   50 10141   51 10141   52 10141   53 10141   54 10141
+  55 10141   55 10141   56 10141   56 10141   56 10141   57 10141   58 10141
+  58 10141   58 10141   58 10141   59 10141   59 10141   59 10141   59 10141
+  60 10141   61 10141   61 10141   62 10141   62 10141   63 10141   64 10141
+  65 10141   65 10141   65 10141   66 10141   67 10141   68 10141   69 10141
+  70 10141   72 10141   72 10141   72 10141   73 10141   73 10141   73 10141
+  74 10141   74 10141   74 10141   74 10141   74 10141   75 10141   75 10141
+  75 10141   76 10141   77 10141   77 10141   78 10141   78 10141   79 10141
+  80 10141   80 10141   81 10141   81 10141   81 10141   82 10141   83 10141
+  84 10141   84 10141   84 10141   84 10141   85 10141   85 10141   85 10141
+  86 10141   87 10141   87 10141   88 10141   89 10141   89 10141   89 10141
+  90 10141   90 10141   90 10141   91 10141   91 10141   91 10141   91 10141
+  91 10141   93 10141   93 10141   93 10141   94 10141   95 10141   95 10141
+  95 10141   96 10141   96 10141   96 10141   97 10141   97 10141   98 10141
+  98 10141   99 10141   99 10141   99 10141}
+
+do_execsql_test 4.6.3 {
+  SELECT b, sum(b) OVER (
+    RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING
+  ) FROM t2 ORDER BY b;
+} {0 10141   1 10141   1 10141   2 10141   2 10141   2 10141   3 10141
+  3 10141   4 10141   5 10141   6 10141   7 10141   7 10141   7 10141
+  8 10141   8 10141   8 10141   9 10141   9 10141   9 10141   10 10141
+  11 10141   11 10141   12 10141   12 10141   12 10141   13 10141   13 10141
+  14 10141   15 10141   15 10141   15 10141   16 10141   16 10141   16 10141
+  17 10141   19 10141   20 10141   21 10141   21 10141   22 10141   22 10141
+  23 10141   23 10141   23 10141   24 10141   25 10141   26 10141   26 10141
+  26 10141   27 10141   27 10141   28 10141   29 10141   29 10141   29 10141
+  30 10141   30 10141   30 10141   31 10141   31 10141   32 10141   33 10141
+  33 10141   33 10141   33 10141   33 10141   34 10141   34 10141   34 10141
+  34 10141   35 10141   35 10141   36 10141   36 10141   36 10141   36 10141
+  37 10141   37 10141   38 10141   38 10141   39 10141   39 10141   39 10141
+  40 10141   41 10141   41 10141   41 10141   42 10141   43 10141   43 10141
+  44 10141   44 10141   46 10141   46 10141   47 10141   47 10141   47 10141
+  47 10141   49 10141   50 10141   51 10141   52 10141   53 10141   54 10141
+  55 10141   55 10141   56 10141   56 10141   56 10141   57 10141   58 10141
+  58 10141   58 10141   58 10141   59 10141   59 10141   59 10141   59 10141
+  60 10141   61 10141   61 10141   62 10141   62 10141   63 10141   64 10141
+  65 10141   65 10141   65 10141   66 10141   67 10141   68 10141   69 10141
+  70 10141   72 10141   72 10141   72 10141   73 10141   73 10141   73 10141
+  74 10141   74 10141   74 10141   74 10141   74 10141   75 10141   75 10141
+  75 10141   76 10141   77 10141   77 10141   78 10141   78 10141   79 10141
+  80 10141   80 10141   81 10141   81 10141   81 10141   82 10141   83 10141
+  84 10141   84 10141   84 10141   84 10141   85 10141   85 10141   85 10141
+  86 10141   87 10141   87 10141   88 10141   89 10141   89 10141   89 10141
+  90 10141   90 10141   90 10141   91 10141   91 10141   91 10141   91 10141
+  91 10141   93 10141   93 10141   93 10141   94 10141   95 10141   95 10141
+  95 10141   96 10141   96 10141   96 10141   97 10141   97 10141   98 10141
+  98 10141   99 10141   99 10141   99 10141}
+
+do_execsql_test 4.6.4 {
+  SELECT b, sum(b) OVER (
+    RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+  ) FROM t2 ORDER BY b;
+} {0 10141   1 10141   1 10141   2 10141   2 10141   2 10141   3 10141
+  3 10141   4 10141   5 10141   6 10141   7 10141   7 10141   7 10141
+  8 10141   8 10141   8 10141   9 10141   9 10141   9 10141   10 10141
+  11 10141   11 10141   12 10141   12 10141   12 10141   13 10141   13 10141
+  14 10141   15 10141   15 10141   15 10141   16 10141   16 10141   16 10141
+  17 10141   19 10141   20 10141   21 10141   21 10141   22 10141   22 10141
+  23 10141   23 10141   23 10141   24 10141   25 10141   26 10141   26 10141
+  26 10141   27 10141   27 10141   28 10141   29 10141   29 10141   29 10141
+  30 10141   30 10141   30 10141   31 10141   31 10141   32 10141   33 10141
+  33 10141   33 10141   33 10141   33 10141   34 10141   34 10141   34 10141
+  34 10141   35 10141   35 10141   36 10141   36 10141   36 10141   36 10141
+  37 10141   37 10141   38 10141   38 10141   39 10141   39 10141   39 10141
+  40 10141   41 10141   41 10141   41 10141   42 10141   43 10141   43 10141
+  44 10141   44 10141   46 10141   46 10141   47 10141   47 10141   47 10141
+  47 10141   49 10141   50 10141   51 10141   52 10141   53 10141   54 10141
+  55 10141   55 10141   56 10141   56 10141   56 10141   57 10141   58 10141
+  58 10141   58 10141   58 10141   59 10141   59 10141   59 10141   59 10141
+  60 10141   61 10141   61 10141   62 10141   62 10141   63 10141   64 10141
+  65 10141   65 10141   65 10141   66 10141   67 10141   68 10141   69 10141
+  70 10141   72 10141   72 10141   72 10141   73 10141   73 10141   73 10141
+  74 10141   74 10141   74 10141   74 10141   74 10141   75 10141   75 10141
+  75 10141   76 10141   77 10141   77 10141   78 10141   78 10141   79 10141
+  80 10141   80 10141   81 10141   81 10141   81 10141   82 10141   83 10141
+  84 10141   84 10141   84 10141   84 10141   85 10141   85 10141   85 10141
+  86 10141   87 10141   87 10141   88 10141   89 10141   89 10141   89 10141
+  90 10141   90 10141   90 10141   91 10141   91 10141   91 10141   91 10141
+  91 10141   93 10141   93 10141   93 10141   94 10141   95 10141   95 10141
+  95 10141   96 10141   96 10141   96 10141   97 10141   97 10141   98 10141
+  98 10141   99 10141   99 10141   99 10141}
+
+do_execsql_test 4.7.1 {
+  SELECT b, sum(b) OVER (
+    ROWS BETWEEN CURRENT ROW AND CURRENT ROW
+  ) FROM t2 ORDER BY 1, 2;
+} {0 0   1 1   1 1   2 2   2 2   2 2   3 3   3 3   4 4   5 5   6 6   7 7   7 7
+  7 7   8 8   8 8   8 8   9 9   9 9   9 9   10 10   11 11   11 11   12 12
+  12 12   12 12   13 13   13 13   14 14   15 15   15 15   15 15   16 16
+  16 16   16 16   17 17   19 19   20 20   21 21   21 21   22 22   22 22
+  23 23   23 23   23 23   24 24   25 25   26 26   26 26   26 26   27 27
+  27 27   28 28   29 29   29 29   29 29   30 30   30 30   30 30   31 31
+  31 31   32 32   33 33   33 33   33 33   33 33   33 33   34 34   34 34
+  34 34   34 34   35 35   35 35   36 36   36 36   36 36   36 36   37 37
+  37 37   38 38   38 38   39 39   39 39   39 39   40 40   41 41   41 41
+  41 41   42 42   43 43   43 43   44 44   44 44   46 46   46 46   47 47
+  47 47   47 47   47 47   49 49   50 50   51 51   52 52   53 53   54 54
+  55 55   55 55   56 56   56 56   56 56   57 57   58 58   58 58   58 58
+  58 58   59 59   59 59   59 59   59 59   60 60   61 61   61 61   62 62
+  62 62   63 63   64 64   65 65   65 65   65 65   66 66   67 67   68 68
+  69 69   70 70   72 72   72 72   72 72   73 73   73 73   73 73   74 74
+  74 74   74 74   74 74   74 74   75 75   75 75   75 75   76 76   77 77
+  77 77   78 78   78 78   79 79   80 80   80 80   81 81   81 81   81 81
+  82 82   83 83   84 84   84 84   84 84   84 84   85 85   85 85   85 85
+  86 86   87 87   87 87   88 88   89 89   89 89   89 89   90 90   90 90
+  90 90   91 91   91 91   91 91   91 91   91 91   93 93   93 93   93 93
+  94 94   95 95   95 95   95 95   96 96   96 96   96 96   97 97   97 97
+  98 98   98 98   99 99   99 99   99 99}
+
+do_execsql_test 4.7.2 {
+  SELECT b, sum(b) OVER (
+    ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW
+  ) FROM t2 ORDER BY 1, 2;
+} {0 0   1 3379   1 5443   2 372   2 4473   2 7074   3 2916   3 9096   4 4049
+  5 5643   6 1047   7 2205   7 7081   7 10141   8 1553   8 5926   8 6422
+  9 4883   9 7932   9 8497   10 9544   11 5727   11 6433   12 2825   12 5918
+  12 8582   13 5190   13 8570   14 8596   15 3189   15 6023   15 8924
+  16 1942   16 1958   16 3590   17 10134   19 7474   20 5946   21 5464
+  21 9682   22 3029   22 6140   23 212   23 1926   23 8520   24 2626
+  25 3331   26 337   26 7539   26 7565   27 1270   27 10035   28 3217
+  29 1649   29 4355   29 7326   30 4215   30 9400   30 9853   31 5977
+  31 6008   32 2857   33 370   33 4326   33 8175   33 8909   33 9661
+  34 6414   34 6516   34 8958   34 9925   35 2151   35 5638   36 3701
+  36 7818   36 8785   36 8994   37 4597   37 8557   38 735   38 9891   39 842
+  39 7513   39 9721   40 3475   41 115   41 4874   41 5906   42 4185
+  43 2754   43 3518   44 7072   44 9765   46 1041   46 1316   47 2198
+  47 3378   47 7612   47 7923   49 6482   50 9450   51 5778   52 9370
+  53 4408   54 1448   55 3174   55 6876   56 2913   56 3435   56 3574
+  57 7223   58 5248   58 7876   58 9318   58 9823   59 697   59 2813
+  59 6665   59 7455   60 6821   61 2426   61 4944   62 904   62 8658
+  63 4471   64 8407   65 2116   65 5177   65 5603   66 8142   67 1620
+  68 803   69 9260   70 7396   72 4833   72 8004   72 8076   73 5017
+  73 5716   73 6213   74 74   74 189   74 2365   74 5538   74 7297   75 3665
+  75 6951   75 8343   76 3964   77 1903   77 7028   78 1394   78 4293
+  79 6292   80 4677   80 7692   81 542   81 4045   81 8488   82 10117
+  83 10008   84 1826   84 4761   84 9534   84 9628   85 2602   85 2711
+  85 7166   86 2291   87 4560   87 5865   88 6380   89 461   89 3306
+  89 3790   90 3119   90 6606   90 7782   91 995   91 2517   91 3007
+  91 8749   91 8876   93 1742   93 2051   93 8268   94 4143   95 5112
+  95 6118   95 9191   96 638   96 5344   96 6761   97 1243   97 1545
+  98 3888   98 5442   99 311   99 1146   99 9093}
+
+do_execsql_test 4.7.3 {
+  SELECT b, sum(b) OVER (
+    ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING
+  ) FROM t2 ORDER BY 1, 2;
+} {0 10141   1 10141   1 10141   2 10141   2 10141   2 10141   3 10141
+  3 10141   4 10141   5 10141   6 10141   7 10141   7 10141   7 10141
+  8 10141   8 10141   8 10141   9 10141   9 10141   9 10141   10 10141
+  11 10141   11 10141   12 10141   12 10141   12 10141   13 10141   13 10141
+  14 10141   15 10141   15 10141   15 10141   16 10141   16 10141   16 10141
+  17 10141   19 10141   20 10141   21 10141   21 10141   22 10141   22 10141
+  23 10141   23 10141   23 10141   24 10141   25 10141   26 10141   26 10141
+  26 10141   27 10141   27 10141   28 10141   29 10141   29 10141   29 10141
+  30 10141   30 10141   30 10141   31 10141   31 10141   32 10141   33 10141
+  33 10141   33 10141   33 10141   33 10141   34 10141   34 10141   34 10141
+  34 10141   35 10141   35 10141   36 10141   36 10141   36 10141   36 10141
+  37 10141   37 10141   38 10141   38 10141   39 10141   39 10141   39 10141
+  40 10141   41 10141   41 10141   41 10141   42 10141   43 10141   43 10141
+  44 10141   44 10141   46 10141   46 10141   47 10141   47 10141   47 10141
+  47 10141   49 10141   50 10141   51 10141   52 10141   53 10141   54 10141
+  55 10141   55 10141   56 10141   56 10141   56 10141   57 10141   58 10141
+  58 10141   58 10141   58 10141   59 10141   59 10141   59 10141   59 10141
+  60 10141   61 10141   61 10141   62 10141   62 10141   63 10141   64 10141
+  65 10141   65 10141   65 10141   66 10141   67 10141   68 10141   69 10141
+  70 10141   72 10141   72 10141   72 10141   73 10141   73 10141   73 10141
+  74 10141   74 10141   74 10141   74 10141   74 10141   75 10141   75 10141
+  75 10141   76 10141   77 10141   77 10141   78 10141   78 10141   79 10141
+  80 10141   80 10141   81 10141   81 10141   81 10141   82 10141   83 10141
+  84 10141   84 10141   84 10141   84 10141   85 10141   85 10141   85 10141
+  86 10141   87 10141   87 10141   88 10141   89 10141   89 10141   89 10141
+  90 10141   90 10141   90 10141   91 10141   91 10141   91 10141   91 10141
+  91 10141   93 10141   93 10141   93 10141   94 10141   95 10141   95 10141
+  95 10141   96 10141   96 10141   96 10141   97 10141   97 10141   98 10141
+  98 10141   99 10141   99 10141   99 10141}
+
+do_execsql_test 4.7.4 {
+  SELECT b, sum(b) OVER (
+    ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+  ) FROM t2 ORDER BY 1, 2;
+} {0 10141   1 4699   1 6763   2 3069   2 5670   2 9771   3 1048   3 7228
+  4 6096   5 4503   6 9100   7 7   7 3067   7 7943   8 3727   8 4223   8 8596
+  9 1653   9 2218   9 5267   10 607   11 3719   11 4425   12 1571   12 4235
+  12 7328   13 1584   13 4964   14 1559   15 1232   15 4133   15 6967
+  16 6567   16 8199   16 8215   17 24   19 2686   20 4215   21 480   21 4698
+  22 4023   22 7134   23 1644   23 8238   23 9952   24 7539   25 6835
+  26 2602   26 2628   26 9830   27 133   27 8898   28 6952   29 2844
+  29 5815   29 8521   30 318   30 771   30 5956   31 4164   31 4195   32 7316
+  33 513   33 1265   33 1999   33 5848   33 9804   34 250   34 1217   34 3659
+  34 3761   35 4538   35 8025   36 1183   36 1392   36 2359   36 6476
+  37 1621   37 5581   38 288   38 9444   39 459   39 2667   39 9338   40 6706
+  41 4276   41 5308   41 10067   42 5998   43 6666   43 7430   44 420
+  44 3113   46 8871   46 9146   47 2265   47 2576   47 6810   47 7990
+  49 3708   50 741   51 4414   52 823   53 5786   54 8747   55 3320   55 7022
+  56 6623   56 6762   56 7284   57 2975   58 376   58 881   58 2323   58 4951
+  59 2745   59 3535   59 7387   59 9503   60 3380   61 5258   61 7776
+  62 1545   62 9299   63 5733   64 1798   65 4603   65 5029   65 8090
+  66 2065   67 8588   68 9406   69 950   70 2815   72 2137   72 2209
+  72 5380   73 4001   73 4498   73 5197   74 2918   74 4677   74 7850
+  74 10026   74 10141   75 1873   75 3265   75 6551   76 6253   77 3190
+  77 8315   78 5926   78 8825   79 3928   80 2529   80 5544   81 1734
+  81 6177   81 9680   82 106   83 216   84 597   84 691   84 5464   84 8399
+  85 3060   85 7515   85 7624   86 7936   87 4363   87 5668   88 3849
+  89 6440   89 6924   89 9769   90 2449   90 3625   90 7112   91 1356
+  91 1483   91 7225   91 7715   91 9237   93 1966   93 8183   93 8492
+  94 6092   95 1045   95 4118   95 5124   96 3476   96 4893   96 9599
+  97 8693   97 8995   98 4797   98 6351   99 1147   99 9094   99 9929}
+
+do_execsql_test 4.8.1 {
+  SELECT b, sum(b) OVER (
+    ORDER BY a
+    ROWS BETWEEN CURRENT ROW AND CURRENT ROW
+  ) FROM t2 ORDER BY 1, 2;
+} {0 0   1 1   1 1   2 2   2 2   2 2   3 3   3 3   4 4   5 5   6 6   7 7   7 7
+  7 7   8 8   8 8   8 8   9 9   9 9   9 9   10 10   11 11   11 11   12 12
+  12 12   12 12   13 13   13 13   14 14   15 15   15 15   15 15   16 16
+  16 16   16 16   17 17   19 19   20 20   21 21   21 21   22 22   22 22
+  23 23   23 23   23 23   24 24   25 25   26 26   26 26   26 26   27 27
+  27 27   28 28   29 29   29 29   29 29   30 30   30 30   30 30   31 31
+  31 31   32 32   33 33   33 33   33 33   33 33   33 33   34 34   34 34
+  34 34   34 34   35 35   35 35   36 36   36 36   36 36   36 36   37 37
+  37 37   38 38   38 38   39 39   39 39   39 39   40 40   41 41   41 41
+  41 41   42 42   43 43   43 43   44 44   44 44   46 46   46 46   47 47
+  47 47   47 47   47 47   49 49   50 50   51 51   52 52   53 53   54 54
+  55 55   55 55   56 56   56 56   56 56   57 57   58 58   58 58   58 58
+  58 58   59 59   59 59   59 59   59 59   60 60   61 61   61 61   62 62
+  62 62   63 63   64 64   65 65   65 65   65 65   66 66   67 67   68 68
+  69 69   70 70   72 72   72 72   72 72   73 73   73 73   73 73   74 74
+  74 74   74 74   74 74   74 74   75 75   75 75   75 75   76 76   77 77
+  77 77   78 78   78 78   79 79   80 80   80 80   81 81   81 81   81 81
+  82 82   83 83   84 84   84 84   84 84   84 84   85 85   85 85   85 85
+  86 86   87 87   87 87   88 88   89 89   89 89   89 89   90 90   90 90
+  90 90   91 91   91 91   91 91   91 91   91 91   93 93   93 93   93 93
+  94 94   95 95   95 95   95 95   96 96   96 96   96 96   97 97   97 97
+  98 98   98 98   99 99   99 99   99 99}
+
+do_execsql_test 4.8.2 {
+  SELECT b, sum(b) OVER (
+    ORDER BY a
+    ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW
+  ) FROM t2 ORDER BY 1, 2;
+} {0 0   1 3379   1 5443   2 372   2 4473   2 7074   3 2916   3 9096   4 4049
+  5 5643   6 1047   7 2205   7 7081   7 10141   8 1553   8 5926   8 6422
+  9 4883   9 7932   9 8497   10 9544   11 5727   11 6433   12 2825   12 5918
+  12 8582   13 5190   13 8570   14 8596   15 3189   15 6023   15 8924
+  16 1942   16 1958   16 3590   17 10134   19 7474   20 5946   21 5464
+  21 9682   22 3029   22 6140   23 212   23 1926   23 8520   24 2626
+  25 3331   26 337   26 7539   26 7565   27 1270   27 10035   28 3217
+  29 1649   29 4355   29 7326   30 4215   30 9400   30 9853   31 5977
+  31 6008   32 2857   33 370   33 4326   33 8175   33 8909   33 9661
+  34 6414   34 6516   34 8958   34 9925   35 2151   35 5638   36 3701
+  36 7818   36 8785   36 8994   37 4597   37 8557   38 735   38 9891   39 842
+  39 7513   39 9721   40 3475   41 115   41 4874   41 5906   42 4185
+  43 2754   43 3518   44 7072   44 9765   46 1041   46 1316   47 2198
+  47 3378   47 7612   47 7923   49 6482   50 9450   51 5778   52 9370
+  53 4408   54 1448   55 3174   55 6876   56 2913   56 3435   56 3574
+  57 7223   58 5248   58 7876   58 9318   58 9823   59 697   59 2813
+  59 6665   59 7455   60 6821   61 2426   61 4944   62 904   62 8658
+  63 4471   64 8407   65 2116   65 5177   65 5603   66 8142   67 1620
+  68 803   69 9260   70 7396   72 4833   72 8004   72 8076   73 5017
+  73 5716   73 6213   74 74   74 189   74 2365   74 5538   74 7297   75 3665
+  75 6951   75 8343   76 3964   77 1903   77 7028   78 1394   78 4293
+  79 6292   80 4677   80 7692   81 542   81 4045   81 8488   82 10117
+  83 10008   84 1826   84 4761   84 9534   84 9628   85 2602   85 2711
+  85 7166   86 2291   87 4560   87 5865   88 6380   89 461   89 3306
+  89 3790   90 3119   90 6606   90 7782   91 995   91 2517   91 3007
+  91 8749   91 8876   93 1742   93 2051   93 8268   94 4143   95 5112
+  95 6118   95 9191   96 638   96 5344   96 6761   97 1243   97 1545
+  98 3888   98 5442   99 311   99 1146   99 9093}
+
+do_execsql_test 4.8.3 {
+  SELECT b, sum(b) OVER (
+    ORDER BY a
+    ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING
+  ) FROM t2 ORDER BY 1, 2;
+} {0 10141   1 10141   1 10141   2 10141   2 10141   2 10141   3 10141
+  3 10141   4 10141   5 10141   6 10141   7 10141   7 10141   7 10141
+  8 10141   8 10141   8 10141   9 10141   9 10141   9 10141   10 10141
+  11 10141   11 10141   12 10141   12 10141   12 10141   13 10141   13 10141
+  14 10141   15 10141   15 10141   15 10141   16 10141   16 10141   16 10141
+  17 10141   19 10141   20 10141   21 10141   21 10141   22 10141   22 10141
+  23 10141   23 10141   23 10141   24 10141   25 10141   26 10141   26 10141
+  26 10141   27 10141   27 10141   28 10141   29 10141   29 10141   29 10141
+  30 10141   30 10141   30 10141   31 10141   31 10141   32 10141   33 10141
+  33 10141   33 10141   33 10141   33 10141   34 10141   34 10141   34 10141
+  34 10141   35 10141   35 10141   36 10141   36 10141   36 10141   36 10141
+  37 10141   37 10141   38 10141   38 10141   39 10141   39 10141   39 10141
+  40 10141   41 10141   41 10141   41 10141   42 10141   43 10141   43 10141
+  44 10141   44 10141   46 10141   46 10141   47 10141   47 10141   47 10141
+  47 10141   49 10141   50 10141   51 10141   52 10141   53 10141   54 10141
+  55 10141   55 10141   56 10141   56 10141   56 10141   57 10141   58 10141
+  58 10141   58 10141   58 10141   59 10141   59 10141   59 10141   59 10141
+  60 10141   61 10141   61 10141   62 10141   62 10141   63 10141   64 10141
+  65 10141   65 10141   65 10141   66 10141   67 10141   68 10141   69 10141
+  70 10141   72 10141   72 10141   72 10141   73 10141   73 10141   73 10141
+  74 10141   74 10141   74 10141   74 10141   74 10141   75 10141   75 10141
+  75 10141   76 10141   77 10141   77 10141   78 10141   78 10141   79 10141
+  80 10141   80 10141   81 10141   81 10141   81 10141   82 10141   83 10141
+  84 10141   84 10141   84 10141   84 10141   85 10141   85 10141   85 10141
+  86 10141   87 10141   87 10141   88 10141   89 10141   89 10141   89 10141
+  90 10141   90 10141   90 10141   91 10141   91 10141   91 10141   91 10141
+  91 10141   93 10141   93 10141   93 10141   94 10141   95 10141   95 10141
+  95 10141   96 10141   96 10141   96 10141   97 10141   97 10141   98 10141
+  98 10141   99 10141   99 10141   99 10141}
+
+do_execsql_test 4.8.4 {
+  SELECT b, sum(b) OVER (
+    ORDER BY a
+    ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+  ) FROM t2 ORDER BY 1, 2;
+} {0 10141   1 4699   1 6763   2 3069   2 5670   2 9771   3 1048   3 7228
+  4 6096   5 4503   6 9100   7 7   7 3067   7 7943   8 3727   8 4223   8 8596
+  9 1653   9 2218   9 5267   10 607   11 3719   11 4425   12 1571   12 4235
+  12 7328   13 1584   13 4964   14 1559   15 1232   15 4133   15 6967
+  16 6567   16 8199   16 8215   17 24   19 2686   20 4215   21 480   21 4698
+  22 4023   22 7134   23 1644   23 8238   23 9952   24 7539   25 6835
+  26 2602   26 2628   26 9830   27 133   27 8898   28 6952   29 2844
+  29 5815   29 8521   30 318   30 771   30 5956   31 4164   31 4195   32 7316
+  33 513   33 1265   33 1999   33 5848   33 9804   34 250   34 1217   34 3659
+  34 3761   35 4538   35 8025   36 1183   36 1392   36 2359   36 6476
+  37 1621   37 5581   38 288   38 9444   39 459   39 2667   39 9338   40 6706
+  41 4276   41 5308   41 10067   42 5998   43 6666   43 7430   44 420
+  44 3113   46 8871   46 9146   47 2265   47 2576   47 6810   47 7990
+  49 3708   50 741   51 4414   52 823   53 5786   54 8747   55 3320   55 7022
+  56 6623   56 6762   56 7284   57 2975   58 376   58 881   58 2323   58 4951
+  59 2745   59 3535   59 7387   59 9503   60 3380   61 5258   61 7776
+  62 1545   62 9299   63 5733   64 1798   65 4603   65 5029   65 8090
+  66 2065   67 8588   68 9406   69 950   70 2815   72 2137   72 2209
+  72 5380   73 4001   73 4498   73 5197   74 2918   74 4677   74 7850
+  74 10026   74 10141   75 1873   75 3265   75 6551   76 6253   77 3190
+  77 8315   78 5926   78 8825   79 3928   80 2529   80 5544   81 1734
+  81 6177   81 9680   82 106   83 216   84 597   84 691   84 5464   84 8399
+  85 3060   85 7515   85 7624   86 7936   87 4363   87 5668   88 3849
+  89 6440   89 6924   89 9769   90 2449   90 3625   90 7112   91 1356
+  91 1483   91 7225   91 7715   91 9237   93 1966   93 8183   93 8492
+  94 6092   95 1045   95 4118   95 5124   96 3476   96 4893   96 9599
+  97 8693   97 8995   98 4797   98 6351   99 1147   99 9094   99 9929}
+
+
+do_test 4.9 {
+  set myres {}
+  foreach r [db eval {SELECT 
+    rank() OVER win AS rank,
+    cume_dist() OVER win AS cume_dist FROM t1
+  WINDOW win AS (ORDER BY 1);}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+do_execsql_test 4.10 {
+  SELECT count(*) OVER (ORDER BY b) FROM t1
+} {3   3   3   6   6   6}
+
+do_execsql_test 4.11 {
+  SELECT count(distinct a) FILTER (WHERE b='odd') FROM t1
+} {3}
+
+#==========================================================================
+
+do_execsql_test 5.0 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(x INTEGER, y INTEGER);
+  INSERT INTO t1 VALUES(10, 1);
+  INSERT INTO t1 VALUES(20, 2);
+  INSERT INTO t1 VALUES(3, 3);
+  INSERT INTO t1 VALUES(2, 4);
+  INSERT INTO t1 VALUES(1, 5);
+} {}
+
+
+do_test 5.1 {
+  set myres {}
+  foreach r [db eval {SELECT avg(x) OVER (ORDER BY y) AS z FROM t1 ORDER BY z;}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {7.2000 8.7500 10.0000 11.0000 15.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+#==========================================================================
+
+do_execsql_test 6.0 {
+  DROP TABLE IF EXISTS t0;
+  CREATE TABLE t0(c0 INTEGER UNIQUE);
+  INSERT INTO t0 VALUES(0);
+} {}
+
+do_execsql_test 6.1 {
+  SELECT DENSE_RANK() OVER(), LAG(0) OVER() FROM t0;
+} {1 {}}
+
+do_execsql_test 6.2 {
+  SELECT * FROM t0 WHERE 
+      (0, t0.c0) IN (SELECT DENSE_RANK() OVER(), LAG(0) OVER() FROM t0);
+} {}
+
+#==========================================================================
+
+do_execsql_test 7.0 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a INTEGER, b INTEGER, c INTEGER);
+  INSERT INTO t1 VALUES(1, 1, 1);
+  INSERT INTO t1 VALUES(1, 2, 2);
+  INSERT INTO t1 VALUES(3, 3, 3);
+  INSERT INTO t1 VALUES(3, 4, 4);
+} {}
+
+do_execsql_test 7.1 {
+  SELECT c, sum(c) OVER win1 FROM t1 
+  WINDOW win1 AS (ORDER BY b)
+} {1 1   2 3   3 6   4 10}
+
+do_execsql_test 7.2 {
+  SELECT c, sum(c) OVER win1 FROM t1 
+  WINDOW win1 AS (PARTITION BY 1 ORDER BY b)
+} {1 1   2 3   3 6   4 10}
+
+do_execsql_test 7.3 {
+  SELECT c, sum(c) OVER win1 FROM t1 
+  WINDOW win1 AS (ORDER BY 1)
+} {1 10   2 10   3 10   4 10}
+
+finish_test
diff --git a/test/window3.tcl b/test/window3.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..f2c596c6fe3f58867f4a79edcd49d7a9c9df2bc9
--- /dev/null
+++ b/test/window3.tcl
@@ -0,0 +1,363 @@
+# 2018 May 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname $argv0] pg_common.tcl]
+
+#=========================================================================
+
+start_test window3 "2018 May 31"
+ifcapable !windowfunc
+
+execsql_test 1.0 {
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t2(a INTEGER PRIMARY KEY, b INTEGER);
+  INSERT INTO t2(a, b) VALUES
+  (10,89), (11,81), (12,96), (13,59), (14,38), (15,68), (16,39), (17,62),
+  (18,91), (19,46), (20,6), (21,99), (22,97), (23,27), (24,46), (25,78),
+  (26,54), (27,97), (28,8), (29,67), (30,29), (31,93), (32,84), (33,77),
+  (34,23), (35,16), (36,16), (37,93), (38,65), (39,35), (40,47), (41,7),
+  (42,86), (43,74), (44,61), (45,91), (46,85), (47,24), (48,85), (49,43),
+  (50,59), (51,12), (52,32), (53,56), (54,3), (55,91), (56,22), (57,90),
+  (58,55), (59,15), (60,28), (61,89), (62,25), (63,47), (64,1), (65,56),
+  (66,40), (67,43), (68,56), (69,16), (70,75), (71,36), (72,89), (73,98),
+  (74,76), (75,81), (76,4), (77,94), (78,42), (79,30), (80,78), (81,33),
+  (82,29), (83,53), (84,63), (85,2), (86,87), (87,37), (88,80), (89,84),
+  (90,72), (91,41), (92,9), (93,61), (94,73), (95,95), (96,65), (97,13),
+  (98,58), (99,96), (100,98), (101,1), (102,21), (103,74), (104,65), (105,35),
+  (106,5), (107,73), (108,11), (109,51), (110,87), (111,41), (112,12), (113,8),
+  (114,20), (115,31), (116,31), (117,15), (118,95), (119,22), (120,73), 
+  (121,79), (122,88), (123,34), (124,8), (125,11), (126,49), (127,34), 
+  (128,90), (129,59), (130,96), (131,60), (132,55), (133,75), (134,77),
+  (135,44), (136,2), (137,7), (138,85), (139,57), (140,74), (141,29), (142,70),
+  (143,59), (144,19), (145,39), (146,26), (147,26), (148,47), (149,80),
+  (150,90), (151,36), (152,58), (153,47), (154,9), (155,72), (156,72), (157,66),
+  (158,33), (159,93), (160,75), (161,64), (162,81), (163,9), (164,23), (165,37),
+  (166,13), (167,12), (168,14), (169,62), (170,91), (171,36), (172,91),
+  (173,33), (174,15), (175,34), (176,36), (177,99), (178,3), (179,95), (180,69),
+  (181,58), (182,52), (183,30), (184,50), (185,84), (186,10), (187,84),
+  (188,33), (189,21), (190,39), (191,44), (192,58), (193,30), (194,38),
+  (195,34), (196,83), (197,27), (198,82), (199,17), (200,7);
+}
+
+execsql_test 1.1 {
+  SELECT max(b) OVER (
+    ORDER BY a
+  ) FROM t2
+}
+
+foreach {tn window} {
+   1 "RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW"
+   2 "RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING"
+   3 "RANGE BETWEEN CURRENT ROW         AND CURRENT ROW"
+   4 "RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING"
+   5 "ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING"
+   6 "ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING"
+   7 "ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW"
+   8 "ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW"
+   9 "ROWS BETWEEN CURRENT ROW         AND CURRENT ROW"
+  10 "ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING"
+  11 "ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING"
+  12 "ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING"
+  13 "ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING"
+  14 "ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING"
+  15 "ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING"
+  16 "ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING"
+  17 "ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING"
+
+  18 "ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW"
+  19 "ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES"
+  20 "ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP"
+
+} {
+  execsql_test 1.$tn.2.1 "SELECT max(b) OVER ( ORDER BY a $window ) FROM t2"
+  execsql_test 1.$tn.2.2 "SELECT min(b) OVER ( ORDER BY a $window ) FROM t2"
+
+  execsql_test 1.$tn.3.1 "
+    SELECT row_number() OVER ( ORDER BY a $window ) FROM t2
+  "
+  execsql_test 1.$tn.3.2 "
+    SELECT row_number() OVER ( PARTITION BY b%10 ORDER BY a $window ) FROM t2
+  "
+  execsql_test 1.$tn.3.3 "
+    SELECT row_number() OVER ( $window ) FROM t2
+  "
+
+  execsql_test 1.$tn.4.1 "
+    SELECT dense_rank() OVER ( ORDER BY a $window ) FROM t2
+  "
+  execsql_test 1.$tn.4.2 "
+    SELECT dense_rank() OVER ( PARTITION BY b%10 ORDER BY a $window ) FROM t2
+  "
+  execsql_test 1.$tn.4.3 "
+    SELECT dense_rank() OVER ( ORDER BY b $window ) FROM t2
+  "
+  execsql_test 1.$tn.4.4 "
+    SELECT dense_rank() OVER ( PARTITION BY b%10 ORDER BY b $window ) FROM t2
+  "
+  execsql_test 1.$tn.4.5 "
+    SELECT dense_rank() OVER ( ORDER BY b%10 $window ) FROM t2
+  "
+  execsql_test 1.$tn.4.6 "
+    SELECT dense_rank() OVER ( PARTITION BY b%2 ORDER BY b%10 $window ) FROM t2
+  "
+
+  execsql_test 1.$tn.5.1 "
+    SELECT rank() OVER ( ORDER BY a $window ) FROM t2
+  "
+  execsql_test 1.$tn.5.2 "
+    SELECT rank() OVER ( PARTITION BY b%10 ORDER BY a $window ) FROM t2
+  "
+  execsql_test 1.$tn.5.3 "
+    SELECT rank() OVER ( ORDER BY b $window ) FROM t2
+  "
+  execsql_test 1.$tn.5.4 "
+    SELECT rank() OVER ( PARTITION BY b%10 ORDER BY b $window ) FROM t2
+  "
+  execsql_test 1.$tn.5.5 "
+    SELECT rank() OVER ( ORDER BY b%10 $window ) FROM t2
+  "
+  execsql_test 1.$tn.5.6 "
+    SELECT rank() OVER ( PARTITION BY b%2 ORDER BY b%10 $window ) FROM t2
+  "
+
+  execsql_test 1.$tn.6.1 "
+    SELECT 
+      row_number() OVER ( PARTITION BY b%2 ORDER BY b%10 $window ),
+      rank() OVER ( PARTITION BY b%2 ORDER BY b%10 $window ),
+      dense_rank() OVER ( PARTITION BY b%2 ORDER BY b%10 $window )
+    FROM t2
+  "
+
+  execsql_float_test 1.$tn.7.1 "
+    SELECT percent_rank() OVER ( ORDER BY a $window ) FROM t2
+  "
+  execsql_float_test 1.$tn.7.2 "
+    SELECT percent_rank() OVER ( PARTITION BY b%10 ORDER BY a $window ) FROM t2
+  "
+  execsql_float_test 1.$tn.7.3 "
+    SELECT percent_rank() OVER ( ORDER BY b $window ) FROM t2
+  "
+  execsql_float_test 1.$tn.7.4 "
+    SELECT percent_rank() OVER ( PARTITION BY b%10 ORDER BY b $window ) FROM t2
+  "
+  execsql_float_test 1.$tn.7.5 "
+    SELECT percent_rank() OVER ( ORDER BY b%10 $window ) FROM t2
+  "
+  execsql_float_test 1.$tn.7.6 "
+    SELECT percent_rank() OVER (PARTITION BY b%2 ORDER BY b%10 $window) FROM t2
+  "
+
+  execsql_float_test 1.$tn.8.1 "
+    SELECT cume_dist() OVER ( ORDER BY a $window ) FROM t2
+  "
+  execsql_float_test 1.$tn.8.2 "
+    SELECT cume_dist() OVER ( PARTITION BY b%10 ORDER BY a $window ) FROM t2
+  "
+  execsql_float_test 1.$tn.8.3 "
+    SELECT cume_dist() OVER ( ORDER BY b $window ) FROM t2
+  "
+  execsql_float_test 1.$tn.8.4 "
+    SELECT cume_dist() OVER ( PARTITION BY b%10 ORDER BY b $window ) FROM t2
+  "
+  execsql_float_test 1.$tn.8.5 "
+    SELECT cume_dist() OVER ( ORDER BY b%10 $window ) FROM t2
+  "
+  execsql_float_test 1.$tn.8.6 "
+    SELECT cume_dist() OVER ( PARTITION BY b%2 ORDER BY b%10 $window ) FROM t2
+  "
+
+  execsql_float_test 1.$tn.8.1 "
+    SELECT ntile(100) OVER ( ORDER BY a $window ) FROM t2
+  "
+  execsql_float_test 1.$tn.8.2 "
+    SELECT ntile(101) OVER ( PARTITION BY b%10 ORDER BY a $window ) FROM t2
+  "
+  execsql_float_test 1.$tn.8.3 "
+    SELECT ntile(102) OVER ( ORDER BY b,a $window ) FROM t2
+  "
+  execsql_float_test 1.$tn.8.4 "
+    SELECT ntile(103) OVER ( PARTITION BY b%10 ORDER BY b,a $window ) FROM t2
+  "
+  execsql_float_test 1.$tn.8.5 "
+    SELECT ntile(104) OVER ( ORDER BY b%10,a $window ) FROM t2
+  "
+  execsql_float_test 1.$tn.8.6 "
+    SELECT ntile(105) OVER (PARTITION BY b%2,a ORDER BY b%10 $window) FROM t2
+  "
+  execsql_float_test 1.$tn.8.7 "
+    SELECT ntile(105) OVER ( $window ) FROM t2
+  "
+
+  execsql_test 1.$tn.9.1 "
+    SELECT last_value(a+b) OVER ( ORDER BY a $window ) FROM t2
+  "
+  execsql_test 1.$tn.9.2 "
+    SELECT last_value(a+b) OVER ( PARTITION BY b%10 ORDER BY a $window ) FROM t2
+  "
+  execsql_test 1.$tn.9.3 "
+    SELECT last_value(a+b) OVER ( ORDER BY b,a $window ) FROM t2
+  "
+  execsql_test 1.$tn.9.4 "
+    SELECT last_value(a+b) OVER ( PARTITION BY b%10 ORDER BY b,a $window ) FROM t2
+  "
+  execsql_test 1.$tn.9.5 "
+    SELECT last_value(a+b) OVER ( ORDER BY b%10,a $window ) FROM t2
+  "
+  execsql_test 1.$tn.9.6 "
+    SELECT last_value(a+b) OVER (PARTITION BY b%2,a ORDER BY b%10 $window) FROM t2
+  "
+
+  execsql_test 1.$tn.10.1 "
+    SELECT nth_value(b,b+1) OVER (ORDER BY a $window) FROM t2
+  "
+  execsql_test 1.$tn.10.2 "
+    SELECT nth_value(b,b+1) OVER (PARTITION BY b%10 ORDER BY a $window) FROM t2
+  "
+  execsql_test 1.$tn.10.3 "
+    SELECT nth_value(b,b+1) OVER ( ORDER BY b,a $window ) FROM t2
+  "
+  execsql_test 1.$tn.10.4 "
+    SELECT nth_value(b,b+1) OVER ( PARTITION BY b%10 ORDER BY b,a $window ) FROM t2
+  "
+  execsql_test 1.$tn.10.5 "
+    SELECT nth_value(b,b+1) OVER ( ORDER BY b%10,a $window ) FROM t2
+  "
+  execsql_test 1.$tn.10.6 "
+    SELECT nth_value(b,b+1) OVER (PARTITION BY b%2,a ORDER BY b%10 $window) FROM t2
+  "
+
+  execsql_test 1.$tn.11.1 "
+    SELECT first_value(b) OVER (ORDER BY a $window) FROM t2
+  "
+  execsql_test 1.$tn.11.2 "
+    SELECT first_value(b) OVER (PARTITION BY b%10 ORDER BY a $window) FROM t2
+  "
+  execsql_test 1.$tn.11.3 "
+    SELECT first_value(b) OVER ( ORDER BY b,a $window ) FROM t2
+  "
+  execsql_test 1.$tn.11.4 "
+    SELECT first_value(b) OVER ( PARTITION BY b%10 ORDER BY b,a $window ) FROM t2
+  "
+  execsql_test 1.$tn.11.5 "
+    SELECT first_value(b) OVER ( ORDER BY b%10,a $window ) FROM t2
+  "
+  execsql_test 1.$tn.11.6 "
+    SELECT first_value(b) OVER (PARTITION BY b%2,a ORDER BY b%10 $window) FROM t2
+  "
+
+  execsql_test 1.$tn.12.1 "
+    SELECT lead(b,b) OVER (ORDER BY a $window) FROM t2
+  "
+  execsql_test 1.$tn.12.2 "
+    SELECT lead(b,b) OVER (PARTITION BY b%10 ORDER BY a $window) FROM t2
+  "
+  execsql_test 1.$tn.12.3 "
+    SELECT lead(b,b) OVER ( ORDER BY b,a $window ) FROM t2
+  "
+  execsql_test 1.$tn.12.4 "
+    SELECT lead(b,b) OVER ( PARTITION BY b%10 ORDER BY b,a $window ) FROM t2
+  "
+  execsql_test 1.$tn.12.5 "
+    SELECT lead(b,b) OVER ( ORDER BY b%10,a $window ) FROM t2
+  "
+  execsql_test 1.$tn.12.6 "
+    SELECT lead(b,b) OVER (PARTITION BY b%2,a ORDER BY b%10 $window) FROM t2
+  "
+
+  execsql_test 1.$tn.13.1 "
+    SELECT lag(b,b) OVER (ORDER BY a $window) FROM t2
+  "
+  execsql_test 1.$tn.13.2 "
+    SELECT lag(b,b) OVER (PARTITION BY b%10 ORDER BY a $window) FROM t2
+  "
+  execsql_test 1.$tn.13.3 "
+    SELECT lag(b,b) OVER ( ORDER BY b,a $window ) FROM t2
+  "
+  execsql_test 1.$tn.13.4 "
+    SELECT lag(b,b) OVER ( PARTITION BY b%10 ORDER BY b,a $window ) FROM t2
+  "
+  execsql_test 1.$tn.13.5 "
+    SELECT lag(b,b) OVER ( ORDER BY b%10,a $window ) FROM t2
+  "
+  execsql_test 1.$tn.13.6 "
+    SELECT lag(b,b) OVER (PARTITION BY b%2,a ORDER BY b%10 $window) FROM t2
+  "
+
+  execsql_test 1.$tn.14.1 "
+    SELECT string_agg(CAST(b AS TEXT), '.') OVER (ORDER BY a $window) FROM t2
+  "
+  execsql_test 1.$tn.14.2 "
+    SELECT string_agg(CAST(b AS TEXT), '.') OVER (PARTITION BY b%10 ORDER BY a $window) FROM t2
+  "
+  execsql_test 1.$tn.14.3 "
+    SELECT string_agg(CAST(b AS TEXT), '.') OVER ( ORDER BY b,a $window ) FROM t2
+  "
+  execsql_test 1.$tn.14.4 "
+    SELECT string_agg(CAST(b AS TEXT), '.') OVER ( PARTITION BY b%10 ORDER BY b,a $window ) FROM t2
+  "
+  execsql_test 1.$tn.14.5 "
+    SELECT string_agg(CAST(b AS TEXT), '.') OVER ( ORDER BY b%10,a $window ) FROM t2
+  "
+  execsql_test 1.$tn.14.6 "
+    SELECT string_agg(CAST(b AS TEXT), '.') OVER (PARTITION BY b%2,a ORDER BY b%10 $window) FROM t2
+  "
+
+  execsql_test 1.$tn.14.7 "
+    SELECT string_agg(CAST(b AS TEXT), '.') OVER (win1 ORDER BY b%10 $window) 
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a)
+    ORDER BY 1
+  "
+
+  execsql_test 1.$tn.14.8 "
+    SELECT string_agg(CAST(b AS TEXT), '.') OVER (win1 $window) 
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a ORDER BY b%10)
+    ORDER BY 1
+  "
+
+  execsql_test 1.$tn.14.9 "
+    SELECT string_agg(CAST(b AS TEXT), '.') OVER win2
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a ORDER BY b%10),
+           win2 AS (win1 $window)
+    ORDER BY 1
+  "
+
+  execsql_test 1.$tn.15.1 "
+    SELECT count(*) OVER win, string_agg(CAST(b AS TEXT), '.') 
+    FILTER (WHERE a%2=0) OVER win FROM t2
+    WINDOW win AS (ORDER BY a $window)
+  "
+
+  execsql_test 1.$tn.15.2 "
+    SELECT count(*) OVER win, string_agg(CAST(b AS TEXT), '.') 
+    FILTER (WHERE 0=1) OVER win FROM t2
+    WINDOW win AS (ORDER BY a $window)
+  "
+
+  execsql_test 1.$tn.15.3 "
+    SELECT count(*) OVER win, string_agg(CAST(b AS TEXT), '.') 
+    FILTER (WHERE 1=0) OVER win FROM t2
+    WINDOW win AS (PARTITION BY (a%10) ORDER BY a $window)
+  "
+
+  execsql_test 1.$tn.15.4 "
+    SELECT count(*) OVER win, string_agg(CAST(b AS TEXT), '.') 
+    FILTER (WHERE a%2=0) OVER win FROM t2
+    WINDOW win AS (PARTITION BY (a%10) ORDER BY a $window)
+  "
+
+}
+
+finish_test
+
diff --git a/test/window3.test b/test/window3.test
new file mode 100644
index 0000000000000000000000000000000000000000..1893b539d36b12f0c6f202dd758e4a665275edcd
--- /dev/null
+++ b/test/window3.test
@@ -0,0 +1,40613 @@
+# 2018 May 31
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+
+####################################################
+# DO NOT EDIT! THIS FILE IS AUTOMATICALLY GENERATED!
+####################################################
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix window3
+
+ifcapable !windowfunc { finish_test ; return }
+do_execsql_test 1.0 {
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t2(a INTEGER PRIMARY KEY, b INTEGER);
+  INSERT INTO t2(a, b) VALUES
+  (10,89), (11,81), (12,96), (13,59), (14,38), (15,68), (16,39), (17,62),
+  (18,91), (19,46), (20,6), (21,99), (22,97), (23,27), (24,46), (25,78),
+  (26,54), (27,97), (28,8), (29,67), (30,29), (31,93), (32,84), (33,77),
+  (34,23), (35,16), (36,16), (37,93), (38,65), (39,35), (40,47), (41,7),
+  (42,86), (43,74), (44,61), (45,91), (46,85), (47,24), (48,85), (49,43),
+  (50,59), (51,12), (52,32), (53,56), (54,3), (55,91), (56,22), (57,90),
+  (58,55), (59,15), (60,28), (61,89), (62,25), (63,47), (64,1), (65,56),
+  (66,40), (67,43), (68,56), (69,16), (70,75), (71,36), (72,89), (73,98),
+  (74,76), (75,81), (76,4), (77,94), (78,42), (79,30), (80,78), (81,33),
+  (82,29), (83,53), (84,63), (85,2), (86,87), (87,37), (88,80), (89,84),
+  (90,72), (91,41), (92,9), (93,61), (94,73), (95,95), (96,65), (97,13),
+  (98,58), (99,96), (100,98), (101,1), (102,21), (103,74), (104,65), (105,35),
+  (106,5), (107,73), (108,11), (109,51), (110,87), (111,41), (112,12), (113,8),
+  (114,20), (115,31), (116,31), (117,15), (118,95), (119,22), (120,73), 
+  (121,79), (122,88), (123,34), (124,8), (125,11), (126,49), (127,34), 
+  (128,90), (129,59), (130,96), (131,60), (132,55), (133,75), (134,77),
+  (135,44), (136,2), (137,7), (138,85), (139,57), (140,74), (141,29), (142,70),
+  (143,59), (144,19), (145,39), (146,26), (147,26), (148,47), (149,80),
+  (150,90), (151,36), (152,58), (153,47), (154,9), (155,72), (156,72), (157,66),
+  (158,33), (159,93), (160,75), (161,64), (162,81), (163,9), (164,23), (165,37),
+  (166,13), (167,12), (168,14), (169,62), (170,91), (171,36), (172,91),
+  (173,33), (174,15), (175,34), (176,36), (177,99), (178,3), (179,95), (180,69),
+  (181,58), (182,52), (183,30), (184,50), (185,84), (186,10), (187,84),
+  (188,33), (189,21), (190,39), (191,44), (192,58), (193,30), (194,38),
+  (195,34), (196,83), (197,27), (198,82), (199,17), (200,7);
+} {}
+
+do_execsql_test 1.1 {
+  SELECT max(b) OVER (
+    ORDER BY a
+  ) FROM t2
+} {89   89   96   96   96   96   96   96   96   96   96   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99}
+
+do_execsql_test 1.1.2.1 {
+  SELECT max(b) OVER ( ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {89   89   96   96   96   96   96   96   96   96   96   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99}
+
+do_execsql_test 1.1.2.2 {
+  SELECT min(b) OVER ( ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {89   81   81   59   38   38   38   38   38   38   6   6   6   6   6   6   6
+  6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6
+  6   6   6   6   6   6   6   6   3   3   3   3   3   3   3   3   3   3   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1}
+
+do_execsql_test 1.1.3.1 {
+  SELECT row_number() OVER ( ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.1.3.2 {
+  SELECT row_number() OVER ( PARTITION BY b%10 ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.1.3.3 {
+  SELECT row_number() OVER ( RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.1.4.1 {
+  SELECT dense_rank() OVER ( ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.1.4.2 {
+  SELECT dense_rank() OVER ( PARTITION BY b%10 ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.1.4.3 {
+  SELECT dense_rank() OVER ( ORDER BY b RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {1   1   2   2   3   3   4   5   6   7   7   7   8   8   8   9   9   9   10
+  11   11   12   12   12   13   13   14   15   15   15   16   16   16   17
+  18   19   20   20   21   21   22   22   23   24   25   25   26   26   27
+  28   28   28   29   29   29   30   30   31   32   32   32   32   33   33
+  33   33   34   34   35   35   35   35   36   36   37   37   38   38   38
+  39   40   40   41   42   42   43   43   44   44   45   45   45   45   46
+  47   48   49   50   51   52   52   53   53   53   54   55   55   55   55
+  56   56   56   56   57   58   58   59   59   60   61   62   62   62   63
+  64   65   66   67   68   68   68   69   69   69   70   70   70   71   71
+  71   72   73   73   74   74   75   76   76   77   77   77   78   79   80
+  80   80   80   81   81   81   82   83   83   84   85   85   85   86   86
+  86   87   87   87   87   87   88   88   88   89   90   90   90   91   91
+  91   92   92   93   93   94   94}
+
+do_execsql_test 1.1.4.4 {
+  SELECT dense_rank() OVER ( PARTITION BY b%10 ORDER BY b RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {1   2   3   3   3   4   5   6   7   8   8   9   9   9   1   1   2   2   3
+  3   4   4   5   5   6   7   7   8   8   8   9   9   9   9   9   1   1   2
+  2   2   3   3   4   5   6   7   7   8   8   8   9   1   1   2   2   3   3
+  4   4   4   4   5   5   6   7   8   8   8   9   10   10   10   1   2   3
+  4   4   4   4   5   5   6   7   8   8   8   9   9   9   9   10   1   2   2
+  2   3   4   4   5   5   6   6   6   7   7   7   8   8   8   9   9   9   1
+  2   2   2   3   3   4   4   4   4   5   5   6   6   6   7   8   9   10   10
+  10   1   1   1   2   3   3   4   4   5   5   5   5   6   7   8   8   9   9
+  10   10   1   1   1   2   3   3   4   4   4   4   5   6   6   7   8   8   1
+  1   1   2   3   3   3   4   4   4   5   6   6   6   6   7   8   9   9   9
+  10   10}
+
+do_execsql_test 1.1.4.5 {
+  SELECT dense_rank() OVER ( ORDER BY b%10 RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   4   4   4   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5   5   5   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   6   6   6   6
+  6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   7   7
+  7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7
+  8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8
+  8   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   10   10
+  10   10   10   10   10   10   10   10   10   10   10   10   10   10   10
+  10   10   10   10   10}
+
+do_execsql_test 1.1.4.6 {
+  SELECT dense_rank() OVER ( PARTITION BY b%2 ORDER BY b%10 RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   3   3   3   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   4   4   4   4   4   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   5   5   5   5   5   5
+  5   5   5   5   5   5   5   5   5   5   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5
+  5}
+
+do_execsql_test 1.1.5.1 {
+  SELECT rank() OVER ( ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.1.5.2 {
+  SELECT rank() OVER ( PARTITION BY b%10 ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.1.5.3 {
+  SELECT rank() OVER ( ORDER BY b RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {1   1   3   3   5   5   7   8   9   10   10   10   13   13   13   16   16
+  16   19   20   20   22   22   22   25   25   27   28   28   28   31   31
+  31   34   35   36   37   37   39   39   41   41   43   44   45   45   47
+  47   49   50   50   50   53   53   53   56   56   58   59   59   59   59
+  63   63   63   63   67   67   69   69   69   69   73   73   75   75   77
+  77   77   80   81   81   83   84   84   86   86   88   88   90   90   90
+  90   94   95   96   97   98   99   100   100   102   102   102   105   106
+  106   106   106   110   110   110   110   114   115   115   117   117   119
+  120   121   121   121   124   125   126   127   128   129   129   129   132
+  132   132   135   135   135   138   138   138   141   142   142   144   144
+  146   147   147   149   149   149   152   153   154   154   154   154   158
+  158   158   161   162   162   164   165   165   165   168   168   168   171
+  171   171   171   171   176   176   176   179   180   180   180   183   183
+  183   186   186   188   188   190   190}
+
+do_execsql_test 1.1.5.4 {
+  SELECT rank() OVER ( PARTITION BY b%10 ORDER BY b RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {1   2   3   3   3   6   7   8   9   10   10   12   12   12   1   1   3   3
+  5   5   7   7   9   9   11   12   12   14   14   14   17   17   17   17
+  17   1   1   3   3   3   6   6   8   9   10   11   11   13   13   13   16
+  1   1   3   3   5   5   7   7   7   7   11   11   13   14   15   15   15
+  18   19   19   19   1   2   3   4   4   4   4   8   8   10   11   12   12
+  12   15   15   15   15   19   1   2   2   2   5   6   6   8   8   10   10
+  10   13   13   13   16   16   16   19   19   19   1   2   2   2   5   5   7
+  7   7   7   11   11   13   13   13   16   17   18   19   19   19   1   1
+  1   4   5   5   7   7   9   9   9   9   13   14   15   15   17   17   19
+  19   1   1   1   4   5   5   7   7   7   7   11   12   12   14   15   15
+  1   1   1   4   5   5   5   8   8   8   11   12   12   12   12   16   17
+  18   18   18   21   21}
+
+do_execsql_test 1.1.5.5 {
+  SELECT rank() OVER ( ORDER BY b%10 RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   15   15   15   15
+  15   15   15   15   15   15   15   15   15   15   15   15   15   15   15
+  15   15   36   36   36   36   36   36   36   36   36   36   36   36   36
+  36   36   36   52   52   52   52   52   52   52   52   52   52   52   52
+  52   52   52   52   52   52   52   52   52   73   73   73   73   73   73
+  73   73   73   73   73   73   73   73   73   73   73   73   73   92   92
+  92   92   92   92   92   92   92   92   92   92   92   92   92   92   92
+  92   92   92   92   113   113   113   113   113   113   113   113   113
+  113   113   113   113   113   113   113   113   113   113   113   113   134
+  134   134   134   134   134   134   134   134   134   134   134   134   134
+  134   134   134   134   134   134   154   154   154   154   154   154   154
+  154   154   154   154   154   154   154   154   154   170   170   170   170
+  170   170   170   170   170   170   170   170   170   170   170   170   170
+  170   170   170   170   170}
+
+do_execsql_test 1.1.5.6 {
+  SELECT rank() OVER ( PARTITION BY b%2 ORDER BY b%10 RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   15   15   15   15
+  15   15   15   15   15   15   15   15   15   15   15   15   31   31   31
+  31   31   31   31   31   31   31   31   31   31   31   31   31   31   31
+  31   50   50   50   50   50   50   50   50   50   50   50   50   50   50
+  50   50   50   50   50   50   50   71   71   71   71   71   71   71   71
+  71   71   71   71   71   71   71   71   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   22   22   22   22   22   22
+  22   22   22   22   22   22   22   22   22   22   22   22   22   22   22
+  43   43   43   43   43   43   43   43   43   43   43   43   43   43   43
+  43   43   43   43   43   43   64   64   64   64   64   64   64   64   64
+  64   64   64   64   64   64   64   64   64   64   64   84   84   84   84
+  84   84   84   84   84   84   84   84   84   84   84   84   84   84   84
+  84   84   84}
+
+do_execsql_test 1.1.6.1 {
+  SELECT 
+      row_number() OVER ( PARTITION BY b%2 ORDER BY b%10 RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ),
+      rank() OVER ( PARTITION BY b%2 ORDER BY b%10 RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ),
+      dense_rank() OVER ( PARTITION BY b%2 ORDER BY b%10 RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW )
+    FROM t2
+} {1 1 1   2 1 1   3 1 1   4 1 1   5 1 1   6 1 1   7 1 1   8 1 1   9 1 1
+  10 1 1   11 1 1   12 1 1   13 1 1   14 1 1   15 15 2   16 15 2   17 15 2
+  18 15 2   19 15 2   20 15 2   21 15 2   22 15 2   23 15 2   24 15 2
+  25 15 2   26 15 2   27 15 2   28 15 2   29 15 2   30 15 2   31 31 3
+  32 31 3   33 31 3   34 31 3   35 31 3   36 31 3   37 31 3   38 31 3
+  39 31 3   40 31 3   41 31 3   42 31 3   43 31 3   44 31 3   45 31 3
+  46 31 3   47 31 3   48 31 3   49 31 3   50 50 4   51 50 4   52 50 4
+  53 50 4   54 50 4   55 50 4   56 50 4   57 50 4   58 50 4   59 50 4
+  60 50 4   61 50 4   62 50 4   63 50 4   64 50 4   65 50 4   66 50 4
+  67 50 4   68 50 4   69 50 4   70 50 4   71 71 5   72 71 5   73 71 5
+  74 71 5   75 71 5   76 71 5   77 71 5   78 71 5   79 71 5   80 71 5
+  81 71 5   82 71 5   83 71 5   84 71 5   85 71 5   86 71 5   1 1 1   2 1 1
+  3 1 1   4 1 1   5 1 1   6 1 1   7 1 1   8 1 1   9 1 1   10 1 1   11 1 1
+  12 1 1   13 1 1   14 1 1   15 1 1   16 1 1   17 1 1   18 1 1   19 1 1
+  20 1 1   21 1 1   22 22 2   23 22 2   24 22 2   25 22 2   26 22 2   27 22 2
+  28 22 2   29 22 2   30 22 2   31 22 2   32 22 2   33 22 2   34 22 2
+  35 22 2   36 22 2   37 22 2   38 22 2   39 22 2   40 22 2   41 22 2
+  42 22 2   43 43 3   44 43 3   45 43 3   46 43 3   47 43 3   48 43 3
+  49 43 3   50 43 3   51 43 3   52 43 3   53 43 3   54 43 3   55 43 3
+  56 43 3   57 43 3   58 43 3   59 43 3   60 43 3   61 43 3   62 43 3
+  63 43 3   64 64 4   65 64 4   66 64 4   67 64 4   68 64 4   69 64 4
+  70 64 4   71 64 4   72 64 4   73 64 4   74 64 4   75 64 4   76 64 4
+  77 64 4   78 64 4   79 64 4   80 64 4   81 64 4   82 64 4   83 64 4
+  84 84 5   85 84 5   86 84 5   87 84 5   88 84 5   89 84 5   90 84 5
+  91 84 5   92 84 5   93 84 5   94 84 5   95 84 5   96 84 5   97 84 5
+  98 84 5   99 84 5   100 84 5   101 84 5   102 84 5   103 84 5   104 84 5
+  105 84 5}
+
+
+do_test 1.1.7.1 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0053 0.0105 0.0158 0.0211 0.0263 0.0316 0.0368 0.0421 0.0474 0.0526 0.0579 0.0632 0.0684 0.0737 0.0789 0.0842 0.0895 0.0947 0.1000 0.1053 0.1105 0.1158 0.1211 0.1263 0.1316 0.1368 0.1421 0.1474 0.1526 0.1579 0.1632 0.1684 0.1737 0.1789 0.1842 0.1895 0.1947 0.2000 0.2053 0.2105 0.2158 0.2211 0.2263 0.2316 0.2368 0.2421 0.2474 0.2526 0.2579 0.2632 0.2684 0.2737 0.2789 0.2842 0.2895 0.2947 0.3000 0.3053 0.3105 0.3158 0.3211 0.3263 0.3316 0.3368 0.3421 0.3474 0.3526 0.3579 0.3632 0.3684 0.3737 0.3789 0.3842 0.3895 0.3947 0.4000 0.4053 0.4105 0.4158 0.4211 0.4263 0.4316 0.4368 0.4421 0.4474 0.4526 0.4579 0.4632 0.4684 0.4737 0.4789 0.4842 0.4895 0.4947 0.5000 0.5053 0.5105 0.5158 0.5211 0.5263 0.5316 0.5368 0.5421 0.5474 0.5526 0.5579 0.5632 0.5684 0.5737 0.5789 0.5842 0.5895 0.5947 0.6000 0.6053 0.6105 0.6158 0.6211 0.6263 0.6316 0.6368 0.6421 0.6474 0.6526 0.6579 0.6632 0.6684 0.6737 0.6789 0.6842 0.6895 0.6947 0.7000 0.7053 0.7105 0.7158 0.7211 0.7263 0.7316 0.7368 0.7421 0.7474 0.7526 0.7579 0.7632 0.7684 0.7737 0.7789 0.7842 0.7895 0.7947 0.8000 0.8053 0.8105 0.8158 0.8211 0.8263 0.8316 0.8368 0.8421 0.8474 0.8526 0.8579 0.8632 0.8684 0.8737 0.8789 0.8842 0.8895 0.8947 0.9000 0.9053 0.9105 0.9158 0.9211 0.9263 0.9316 0.9368 0.9421 0.9474 0.9526 0.9579 0.9632 0.9684 0.9737 0.9789 0.9842 0.9895 0.9947 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.1.7.2 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( PARTITION BY b%10 ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0769 0.1538 0.2308 0.3077 0.3846 0.4615 0.5385 0.6154 0.6923 0.7692 0.8462 0.9231 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0667 0.1333 0.2000 0.2667 0.3333 0.4000 0.4667 0.5333 0.6000 0.6667 0.7333 0.8000 0.8667 0.9333 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0556 0.1111 0.1667 0.2222 0.2778 0.3333 0.3889 0.4444 0.5000 0.5556 0.6111 0.6667 0.7222 0.7778 0.8333 0.8889 0.9444 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0526 0.1053 0.1579 0.2105 0.2632 0.3158 0.3684 0.4211 0.4737 0.5263 0.5789 0.6316 0.6842 0.7368 0.7895 0.8421 0.8947 0.9474 1.0000 0.0000 0.0667 0.1333 0.2000 0.2667 0.3333 0.4000 0.4667 0.5333 0.6000 0.6667 0.7333 0.8000 0.8667 0.9333 1.0000 0.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.1.7.3 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY b RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0105 0.0105 0.0211 0.0211 0.0316 0.0368 0.0421 0.0474 0.0474 0.0474 0.0632 0.0632 0.0632 0.0789 0.0789 0.0789 0.0947 0.1000 0.1000 0.1105 0.1105 0.1105 0.1263 0.1263 0.1368 0.1421 0.1421 0.1421 0.1579 0.1579 0.1579 0.1737 0.1789 0.1842 0.1895 0.1895 0.2000 0.2000 0.2105 0.2105 0.2211 0.2263 0.2316 0.2316 0.2421 0.2421 0.2526 0.2579 0.2579 0.2579 0.2737 0.2737 0.2737 0.2895 0.2895 0.3000 0.3053 0.3053 0.3053 0.3053 0.3263 0.3263 0.3263 0.3263 0.3474 0.3474 0.3579 0.3579 0.3579 0.3579 0.3789 0.3789 0.3895 0.3895 0.4000 0.4000 0.4000 0.4158 0.4211 0.4211 0.4316 0.4368 0.4368 0.4474 0.4474 0.4579 0.4579 0.4684 0.4684 0.4684 0.4684 0.4895 0.4947 0.5000 0.5053 0.5105 0.5158 0.5211 0.5211 0.5316 0.5316 0.5316 0.5474 0.5526 0.5526 0.5526 0.5526 0.5737 0.5737 0.5737 0.5737 0.5947 0.6000 0.6000 0.6105 0.6105 0.6211 0.6263 0.6316 0.6316 0.6316 0.6474 0.6526 0.6579 0.6632 0.6684 0.6737 0.6737 0.6737 0.6895 0.6895 0.6895 0.7053 0.7053 0.7053 0.7211 0.7211 0.7211 0.7368 0.7421 0.7421 0.7526 0.7526 0.7632 0.7684 0.7684 0.7789 0.7789 0.7789 0.7947 0.8000 0.8053 0.8053 0.8053 0.8053 0.8263 0.8263 0.8263 0.8421 0.8474 0.8474 0.8579 0.8632 0.8632 0.8632 0.8789 0.8789 0.8789 0.8947 0.8947 0.8947 0.8947 0.8947 0.9211 0.9211 0.9211 0.9368 0.9421 0.9421 0.9421 0.9579 0.9579 0.9579 0.9737 0.9737 0.9842 0.9842 0.9947 0.9947}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.1.7.4 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( PARTITION BY b%10 ORDER BY b RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0769 0.1538 0.1538 0.1538 0.3846 0.4615 0.5385 0.6154 0.6923 0.6923 0.8462 0.8462 0.8462 0.0000 0.0000 0.1000 0.1000 0.2000 0.2000 0.3000 0.3000 0.4000 0.4000 0.5000 0.5500 0.5500 0.6500 0.6500 0.6500 0.8000 0.8000 0.8000 0.8000 0.8000 0.0000 0.0000 0.1333 0.1333 0.1333 0.3333 0.3333 0.4667 0.5333 0.6000 0.6667 0.6667 0.8000 0.8000 0.8000 1.0000 0.0000 0.0000 0.1000 0.1000 0.2000 0.2000 0.3000 0.3000 0.3000 0.3000 0.5000 0.5000 0.6000 0.6500 0.7000 0.7000 0.7000 0.8500 0.9000 0.9000 0.9000 0.0000 0.0556 0.1111 0.1667 0.1667 0.1667 0.1667 0.3889 0.3889 0.5000 0.5556 0.6111 0.6111 0.6111 0.7778 0.7778 0.7778 0.7778 1.0000 0.0000 0.0500 0.0500 0.0500 0.2000 0.2500 0.2500 0.3500 0.3500 0.4500 0.4500 0.4500 0.6000 0.6000 0.6000 0.7500 0.7500 0.7500 0.9000 0.9000 0.9000 0.0000 0.0500 0.0500 0.0500 0.2000 0.2000 0.3000 0.3000 0.3000 0.3000 0.5000 0.5000 0.6000 0.6000 0.6000 0.7500 0.8000 0.8500 0.9000 0.9000 0.9000 0.0000 0.0000 0.0000 0.1579 0.2105 0.2105 0.3158 0.3158 0.4211 0.4211 0.4211 0.4211 0.6316 0.6842 0.7368 0.7368 0.8421 0.8421 0.9474 0.9474 0.0000 0.0000 0.0000 0.2000 0.2667 0.2667 0.4000 0.4000 0.4000 0.4000 0.6667 0.7333 0.7333 0.8667 0.9333 0.9333 0.0000 0.0000 0.0000 0.1429 0.1905 0.1905 0.1905 0.3333 0.3333 0.3333 0.4762 0.5238 0.5238 0.5238 0.5238 0.7143 0.7619 0.8095 0.8095 0.8095 0.9524 0.9524}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.1.7.5 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY b%10 RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.1.7.6 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER (PARTITION BY b%2 ORDER BY b%10 RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.1.8.1 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0052 0.0105 0.0157 0.0209 0.0262 0.0314 0.0366 0.0419 0.0471 0.0524 0.0576 0.0628 0.0681 0.0733 0.0785 0.0838 0.0890 0.0942 0.0995 0.1047 0.1099 0.1152 0.1204 0.1257 0.1309 0.1361 0.1414 0.1466 0.1518 0.1571 0.1623 0.1675 0.1728 0.1780 0.1832 0.1885 0.1937 0.1990 0.2042 0.2094 0.2147 0.2199 0.2251 0.2304 0.2356 0.2408 0.2461 0.2513 0.2565 0.2618 0.2670 0.2723 0.2775 0.2827 0.2880 0.2932 0.2984 0.3037 0.3089 0.3141 0.3194 0.3246 0.3298 0.3351 0.3403 0.3455 0.3508 0.3560 0.3613 0.3665 0.3717 0.3770 0.3822 0.3874 0.3927 0.3979 0.4031 0.4084 0.4136 0.4188 0.4241 0.4293 0.4346 0.4398 0.4450 0.4503 0.4555 0.4607 0.4660 0.4712 0.4764 0.4817 0.4869 0.4921 0.4974 0.5026 0.5079 0.5131 0.5183 0.5236 0.5288 0.5340 0.5393 0.5445 0.5497 0.5550 0.5602 0.5654 0.5707 0.5759 0.5812 0.5864 0.5916 0.5969 0.6021 0.6073 0.6126 0.6178 0.6230 0.6283 0.6335 0.6387 0.6440 0.6492 0.6545 0.6597 0.6649 0.6702 0.6754 0.6806 0.6859 0.6911 0.6963 0.7016 0.7068 0.7120 0.7173 0.7225 0.7277 0.7330 0.7382 0.7435 0.7487 0.7539 0.7592 0.7644 0.7696 0.7749 0.7801 0.7853 0.7906 0.7958 0.8010 0.8063 0.8115 0.8168 0.8220 0.8272 0.8325 0.8377 0.8429 0.8482 0.8534 0.8586 0.8639 0.8691 0.8743 0.8796 0.8848 0.8901 0.8953 0.9005 0.9058 0.9110 0.9162 0.9215 0.9267 0.9319 0.9372 0.9424 0.9476 0.9529 0.9581 0.9634 0.9686 0.9738 0.9791 0.9843 0.9895 0.9948 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.1.8.2 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%10 ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0714 0.1429 0.2143 0.2857 0.3571 0.4286 0.5000 0.5714 0.6429 0.7143 0.7857 0.8571 0.9286 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0625 0.1250 0.1875 0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250 0.6875 0.7500 0.8125 0.8750 0.9375 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0526 0.1053 0.1579 0.2105 0.2632 0.3158 0.3684 0.4211 0.4737 0.5263 0.5789 0.6316 0.6842 0.7368 0.7895 0.8421 0.8947 0.9474 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0625 0.1250 0.1875 0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250 0.6875 0.7500 0.8125 0.8750 0.9375 1.0000 0.0455 0.0909 0.1364 0.1818 0.2273 0.2727 0.3182 0.3636 0.4091 0.4545 0.5000 0.5455 0.5909 0.6364 0.6818 0.7273 0.7727 0.8182 0.8636 0.9091 0.9545 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.1.8.3 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY b RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0105 0.0105 0.0209 0.0209 0.0314 0.0314 0.0366 0.0419 0.0471 0.0628 0.0628 0.0628 0.0785 0.0785 0.0785 0.0942 0.0942 0.0942 0.0995 0.1099 0.1099 0.1257 0.1257 0.1257 0.1361 0.1361 0.1414 0.1571 0.1571 0.1571 0.1728 0.1728 0.1728 0.1780 0.1832 0.1885 0.1990 0.1990 0.2094 0.2094 0.2199 0.2199 0.2251 0.2304 0.2408 0.2408 0.2513 0.2513 0.2565 0.2723 0.2723 0.2723 0.2880 0.2880 0.2880 0.2984 0.2984 0.3037 0.3246 0.3246 0.3246 0.3246 0.3455 0.3455 0.3455 0.3455 0.3560 0.3560 0.3770 0.3770 0.3770 0.3770 0.3874 0.3874 0.3979 0.3979 0.4136 0.4136 0.4136 0.4188 0.4293 0.4293 0.4346 0.4450 0.4450 0.4555 0.4555 0.4660 0.4660 0.4869 0.4869 0.4869 0.4869 0.4921 0.4974 0.5026 0.5079 0.5131 0.5183 0.5288 0.5288 0.5445 0.5445 0.5445 0.5497 0.5707 0.5707 0.5707 0.5707 0.5916 0.5916 0.5916 0.5916 0.5969 0.6073 0.6073 0.6178 0.6178 0.6230 0.6283 0.6440 0.6440 0.6440 0.6492 0.6545 0.6597 0.6649 0.6702 0.6859 0.6859 0.6859 0.7016 0.7016 0.7016 0.7173 0.7173 0.7173 0.7330 0.7330 0.7330 0.7382 0.7487 0.7487 0.7592 0.7592 0.7644 0.7749 0.7749 0.7906 0.7906 0.7906 0.7958 0.8010 0.8220 0.8220 0.8220 0.8220 0.8377 0.8377 0.8377 0.8429 0.8534 0.8534 0.8586 0.8743 0.8743 0.8743 0.8901 0.8901 0.8901 0.9162 0.9162 0.9162 0.9162 0.9162 0.9319 0.9319 0.9319 0.9372 0.9529 0.9529 0.9529 0.9686 0.9686 0.9686 0.9791 0.9791 0.9895 0.9895 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.1.8.4 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%10 ORDER BY b RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0714 0.1429 0.3571 0.3571 0.3571 0.4286 0.5000 0.5714 0.6429 0.7857 0.7857 1.0000 1.0000 1.0000 0.0952 0.0952 0.1905 0.1905 0.2857 0.2857 0.3810 0.3810 0.4762 0.4762 0.5238 0.6190 0.6190 0.7619 0.7619 0.7619 1.0000 1.0000 1.0000 1.0000 1.0000 0.1250 0.1250 0.3125 0.3125 0.3125 0.4375 0.4375 0.5000 0.5625 0.6250 0.7500 0.7500 0.9375 0.9375 0.9375 1.0000 0.0952 0.0952 0.1905 0.1905 0.2857 0.2857 0.4762 0.4762 0.4762 0.4762 0.5714 0.5714 0.6190 0.6667 0.8095 0.8095 0.8095 0.8571 1.0000 1.0000 1.0000 0.0526 0.1053 0.1579 0.3684 0.3684 0.3684 0.3684 0.4737 0.4737 0.5263 0.5789 0.7368 0.7368 0.7368 0.9474 0.9474 0.9474 0.9474 1.0000 0.0476 0.1905 0.1905 0.1905 0.2381 0.3333 0.3333 0.4286 0.4286 0.5714 0.5714 0.5714 0.7143 0.7143 0.7143 0.8571 0.8571 0.8571 1.0000 1.0000 1.0000 0.0476 0.1905 0.1905 0.1905 0.2857 0.2857 0.4762 0.4762 0.4762 0.4762 0.5714 0.5714 0.7143 0.7143 0.7143 0.7619 0.8095 0.8571 1.0000 1.0000 1.0000 0.1500 0.1500 0.1500 0.2000 0.3000 0.3000 0.4000 0.4000 0.6000 0.6000 0.6000 0.6000 0.6500 0.7000 0.8000 0.8000 0.9000 0.9000 1.0000 1.0000 0.1875 0.1875 0.1875 0.2500 0.3750 0.3750 0.6250 0.6250 0.6250 0.6250 0.6875 0.8125 0.8125 0.8750 1.0000 1.0000 0.1364 0.1364 0.1364 0.1818 0.3182 0.3182 0.3182 0.4545 0.4545 0.4545 0.5000 0.6818 0.6818 0.6818 0.6818 0.7273 0.7727 0.9091 0.9091 0.9091 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.1.8.5 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY b%10 RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.1.8.6 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%2 ORDER BY b%10 RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.1.8.1 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(100) OVER ( ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 88.0000 89.0000 89.0000 90.0000 90.0000 91.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.1.8.2 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(101) OVER ( PARTITION BY b%10 ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 22.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.1.8.3 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(102) OVER ( ORDER BY b,a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 88.0000 89.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.1.8.4 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(103) OVER ( PARTITION BY b%10 ORDER BY b,a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 22.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.1.8.5 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(104) OVER ( ORDER BY b%10,a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000 103.0000 104.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.1.8.6 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(105) OVER (PARTITION BY b%2,a ORDER BY b%10 RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.1.8.7 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(105) OVER ( RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 88.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000 103.0000 104.0000 105.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+do_execsql_test 1.1.9.1 {
+  SELECT last_value(a+b) OVER ( ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {99   92   108   72   52   83   55   79   109   65   26   120   119   50
+  70   103   80   124   36   96   59   124   116   110   57   51   52   130
+  103   74   87   48   128   117   105   136   131   71   133   92   109   63
+  84   109   57   146   78   147   113   74   88   150   87   110   65   121
+  106   110   124   85   145   107   161   171   150   156   80   171   120
+  109   158   114   111   136   147   87   173   124   168   173   162   132
+  101   154   167   190   161   110   156   195   198   102   123   177   169
+  140   111   180   119   160   197   152   124   121   134   146   147   132
+  213   141   193   200   210   157   132   136   175   161   218   188   226
+  191   187   208   211   179   138   144   223   196   214   170   212   202
+  163   184   172   173   195   229   240   187   210   200   163   227   228
+  223   191   252   235   225   243   172   187   202   179   179   182   231
+  261   207   263   206   189   209   212   276   181   274   249   239   234
+  213   234   269   196   271   221   210   229   235   250   223   232   229
+  279   224   280   216   207}
+
+do_execsql_test 1.1.9.2 {
+  SELECT last_value(a+b) OVER ( PARTITION BY b%10 ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {147   106   109   168   134   218   191   212   229   240   213   234   196
+  223   92   109   105   136   146   65   156   132   154   102   123   119
+  160   152   146   147   136   243   261   263   210   79   63   84   78
+  120   87   162   124   141   138   227   228   179   231   234   280   124
+  57   130   92   57   110   114   136   147   167   110   180   193   191
+  252   187   179   206   181   221   279   80   116   117   71   80   171
+  173   177   157   161   179   214   225   182   209   269   271   235   229
+  103   74   131   133   113   74   87   145   190   161   169   140   111
+  132   213   187   208   223   235   189   274   108   65   26   70   51
+  52   128   109   121   124   85   107   150   195   226   172   173   187
+  223   207   212   119   50   124   96   110   87   48   110   173   124
+  197   211   144   196   195   200   202   224   216   207   52   83   103
+  36   88   171   158   156   198   121   210   132   210   239   250   232
+  99   72   55   120   59   109   150   161   111   101   200   175   188
+  170   202   163   184   163   172   276   249   229}
+
+do_execsql_test 1.1.9.3 {
+  SELECT last_value(a+b) OVER ( ORDER BY b,a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {65   102   87   138   57   181   80   111   26   48   144   207   36   121
+  132   101   163   172   196   119   136   63   124   179   110   179   182
+  74   132   189   51   52   85   216   163   134   123   210   78   141   57
+  187   71   87   172   173   50   224   88   59   111   170   109   213
+  223   146   147   84   114   191   206   221   157   161   209   229   74
+  140   107   187   207   212   124   202   52   232   55   184   229   106
+  132   152   120   92   110   179   235   65   70   87   110   195   200
+  175   234   160   234   136   80   113   187   109   121   124   196   156
+  210   239   250   72   109   188   202   191   105   154   79   231   147
+  225   103   161   169   223   96   83   249   212   162   227   228   167
+  180   193   117   177   214   145   208   235   150   110   211   103   158
+  200   168   229   92   156   243   280   279   116   173   269   271   131
+  133   223   128   173   197   210   99   150   161   147   218   240   109
+  136   146   261   263   124   130   252   171   190   213   274   108   195
+  226   119   124   171   198   120   276}
+
+do_execsql_test 1.1.9.4 {
+  SELECT last_value(a+b) OVER ( PARTITION BY b%10 ORDER BY b,a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {196   134   109   213   223   106   234   191   212   168   229   147   218
+  240   65   102   119   136   123   210   146   147   132   152   160   105
+  154   92   156   243   109   136   146   261   263   87   138   63   124
+  179   78   141   84   120   234   79   231   162   227   228   280   57
+  181   110   179   57   187   114   191   206   221   92   110   136   147
+  167   180   193   279   124   130   252   80   182   71   157   161   209
+  229   179   235   80   225   117   177   214   116   173   269   271   171
+  111   74   132   189   87   74   140   113   187   103   161   169   145
+  208   235   131   133   223   190   213   274   26   51   52   85   172
+  173   107   187   207   212   65   70   109   121   124   223   150   128
+  108   195   226   48   144   207   216   50   224   124   202   87   110
+  195   200   196   96   110   211   173   197   119   124   36   121   132
+  88   52   232   156   210   239   250   83   103   158   210   171   198
+  101   163   172   163   59   111   170   55   184   229   175   72   109
+  188   202   249   200   99   150   161   120   276}
+
+do_execsql_test 1.1.9.5 {
+  SELECT last_value(a+b) OVER ( ORDER BY b%10,a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {147   106   109   168   134   218   191   212   229   240   213   234   196
+  223   92   109   105   136   146   65   156   132   154   102   123   119
+  160   152   146   147   136   243   261   263   210   79   63   84   78
+  120   87   162   124   141   138   227   228   179   231   234   280   124
+  57   130   92   57   110   114   136   147   167   110   180   193   191
+  252   187   179   206   181   221   279   80   116   117   71   80   171
+  173   177   157   161   179   214   225   182   209   269   271   235   229
+  103   74   131   133   113   74   87   145   190   161   169   140   111
+  132   213   187   208   223   235   189   274   108   65   26   70   51
+  52   128   109   121   124   85   107   150   195   226   172   173   187
+  223   207   212   119   50   124   96   110   87   48   110   173   124
+  197   211   144   196   195   200   202   224   216   207   52   83   103
+  36   88   171   158   156   198   121   210   132   210   239   250   232
+  99   72   55   120   59   109   150   161   111   101   200   175   188
+  170   202   163   184   163   172   276   249   229}
+
+do_execsql_test 1.1.9.6 {
+  SELECT last_value(a+b) OVER (PARTITION BY b%2,a ORDER BY b%10 RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t2
+} {108   52   83   79   65   26   70   103   80   36   116   51   52   128
+  117   71   63   84   109   78   147   88   121   106   124   85   107   171
+  150   80   171   120   109   158   87   168   173   162   156   195   198
+  177   124   121   134   141   210   157   132   161   218   226   191   179
+  138   214   212   172   173   229   240   187   210   227   228   223   225
+  179   182   231   207   209   212   239   234   213   234   269   196   271
+  235   250   223   232   229   280   99   92   72   55   109   120   119
+  50   124   96   59   124   110   57   130   103   74   87   48   105   136
+  131   133   92   109   57   146   113   74   150   87   110   65   110
+  145   161   156   114   111   136   147   173   124   132   101   154   167
+  190   161   110   102   123   169   140   111   180   119   160   197   152
+  146   147   132   213   193   200   136   175   188   187   208   211   144
+  223   196   170   202   163   184   195   200   163   191   252   235   243
+  172   187   202   179   261   263   206   189   276   181   274   249   221
+  210   229   279   224   216   207}
+
+do_execsql_test 1.1.10.1 {
+  SELECT nth_value(b,b+1) OVER (ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   39   {}   {}   {}   {}
+  {}   {}   {}   91   {}   {}   {}   {}   {}   77   54   54   {}   {}   {}
+  {}   62   {}   {}   {}   {}   {}   23   {}   {}   {}   97   86   {}   59
+  {}   84   {}   {}   78   65   {}   16   90   81   {}   59   56   40   54
+  {}   85   {}   {}   {}   {}   38   {}   32   47   {}   74   35   47   98
+  96   {}   24   {}   {}   29   12   46   36   53   {}   81   27   56   {}
+  {}   81   93   63   81   91   68   53   99   89   13   12   97   91   29
+  7   7   78   35   84   53   84   58   61   91   99   15   61   98   16   5
+  75   56   2   37   3   96   62   95   43   63   35   78   16   67   43   16
+  16   90   72   98   85   56   90   46   29   29   4   74   74   2   76   41
+  46   77   24   27   97   46   89   1   85   1   74   78   61   85   51   59
+  35   30   56   25   47   28   73   6   73   74   93   43   3   56   47   85
+  61   61   93   9   97   62}
+
+do_execsql_test 1.1.10.2 {
+  SELECT nth_value(b,b+1) OVER (PARTITION BY b%10 ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   91   {}   11   {}   {}   {}   {}
+  11   {}   {}   {}   {}   {}   {}   {}   {}   {}   32   {}   {}   {}   32
+  {}   {}   12   {}   {}   {}   {}   {}   {}   {}   43   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   33   {}   43   {}   {}   {}   {}   {}
+  {}   4   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   15   {}
+  {}   {}   {}   {}   {}   55   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   47   {}   {}   {}   {}
+  {}   27   47   {}   {}   {}   {}   {}   {}   {}   {}   {}   98   {}   98
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}
+  {}   {}   {}   {}   {}   {}   9   9   {}   {}   {}}
+
+do_execsql_test 1.1.10.3 {
+  SELECT nth_value(b,b+1) OVER ( ORDER BY b,a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {{}   1   2   2   2   2   3   3   4   5   5   5   6   6   6   7   7   7   7
+  7   7   8   8   8   8   8   8   9   9   9   9   9   9   9   11   11   12
+  12   12   12   12   12   13   13   14   14   15   15   15   15   15   15
+  16   16   16   16   16   16   17   17   17   17   19   19   19   19   20
+  20   21   21   21   21   21   21   22   22   22   22   22   23   23   23
+  24   25   25   26   26   27   27   27   27   27   27   29   29   29   30
+  30   30   31   31   31   31   31   32   33   33   33   33   33   33   33
+  33   33   33   33   34   34   34   34   34   34   34   35   35   36   36
+  36   37   37   37   37   37   37   38   38   38   38   38   38   39   39
+  39   39   39   40   41   41   41   41   41   42   43   43   43   43   43
+  44   44   44   44   46   46   46   47   47   47   47   47   47   47   47
+  47   47   47   49   49   49   50   51   51   51   52   52   52   53   53
+  54   54   55   55}
+
+do_execsql_test 1.1.10.4 {
+  SELECT nth_value(b,b+1) OVER ( PARTITION BY b%10 ORDER BY b,a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  1   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.1.10.5 {
+  SELECT nth_value(b,b+1) OVER ( ORDER BY b%10,a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   40   {}   {}   {}   40   41   50   {}   {}   {}   {}
+  50   {}   {}   {}   41   {}   10   91   61   {}   30   {}   10   61   30
+  {}   {}   10   {}   {}   {}   {}   1   {}   22   80   22   91   93   {}
+  {}   30   {}   {}   91   {}   1   30   91   80   91   {}   43   {}   74
+  21   20   {}   {}   74   21   21   2   74   33   81   21   64   64   2   21
+  93   62   14   14   3   91   11   24   55   93   93   62   90   91   55   3
+  24   14   24   91   55   15   72   60   72   61   61   34   43   43   43
+  61   12   4   15   15   51   51   12   23   12   12   25   41   25   13
+  94   12   70   12   84   32   84   94   70   33   12   12   32   41   91
+  70   22   33   84   80   31   75   84   53   75   80   84   80   53   53
+  53   22   44   63   42   95   31   63   44   44   31   90   74   52   63
+  31   63   1   42   90   90   95   3   42}
+
+do_execsql_test 1.1.10.6 {
+  SELECT nth_value(b,b+1) OVER (PARTITION BY b%2,a ORDER BY b%10 RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.1.11.1 {
+  SELECT first_value(b) OVER (ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t2
+} {89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89}
+
+do_execsql_test 1.1.11.2 {
+  SELECT first_value(b) OVER (PARTITION BY b%10 ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t2
+} {90   90   90   90   90   90   90   90   90   90   90   90   90   90   81
+  81   81   81   81   81   81   81   81   81   81   81   81   81   81   81
+  81   81   81   81   81   62   62   62   62   62   62   62   62   62   62
+  62   62   62   62   62   62   93   93   93   93   93   93   93   93   93
+  93   93   93   93   93   93   93   93   93   93   93   93   54   54   54
+  54   54   54   54   54   54   54   54   54   54   54   54   54   54   54
+  54   65   65   65   65   65   65   65   65   65   65   65   65   65   65
+  65   65   65   65   65   65   65   96   96   96   96   96   96   96   96
+  96   96   96   96   96   96   96   96   96   96   96   96   96   97   97
+  97   97   97   97   97   97   97   97   97   97   97   97   97   97   97
+  97   97   97   38   38   38   38   38   38   38   38   38   38   38   38
+  38   38   38   38   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89}
+
+do_execsql_test 1.1.11.3 {
+  SELECT first_value(b) OVER ( ORDER BY b,a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1}
+
+do_execsql_test 1.1.11.4 {
+  SELECT first_value(b) OVER ( PARTITION BY b%10 ORDER BY b,a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {10   10   10   10   10   10   10   10   10   10   10   10   10   10   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5
+  5   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6
+  6   6   6   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7
+  7   7   7   7   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8
+  8   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9
+  9   9   9   9}
+
+do_execsql_test 1.1.11.5 {
+  SELECT first_value(b) OVER ( ORDER BY b%10,a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90}
+
+do_execsql_test 1.1.11.6 {
+  SELECT first_value(b) OVER (PARTITION BY b%2,a ORDER BY b%10 RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t2
+} {96   38   68   62   46   6   46   78   54   8   84   16   16   86   74   24
+  12   32   56   22   90   28   56   40   56   16   36   98   76   4   94
+  42   30   78   2   80   84   72   58   96   98   74   12   8   20   22   88
+  34   8   34   90   96   60   44   2   74   70   26   26   80   90   36   58
+  72   72   66   64   12   14   62   36   34   36   58   52   30   50   84
+  10   84   44   58   30   38   34   82   89   81   59   39   91   99   97
+  27   97   67   29   93   77   23   93   65   35   47   7   61   91   85
+  85   43   59   3   91   55   15   89   25   47   1   43   75   89   81   33
+  29   53   63   87   37   41   9   61   73   95   65   13   1   21   65   35
+  5   73   11   51   87   41   31   31   15   95   73   79   11   49   59
+  55   75   77   7   85   57   29   59   19   39   47   47   9   33   93   75
+  81   9   23   37   13   91   91   33   15   99   3   95   69   33   21   39
+  83   27   17   7}
+
+do_execsql_test 1.1.12.1 {
+  SELECT lead(b,b) OVER (ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t2
+} {96   9   11   89   32   53   91   30   51   56   54   73   22   59   75
+  74   78   8   16   65   15   8   31   87   90   12   32   96   74   76   37
+  85   90   15   35   2   60   36   75   9   51   47   63   51   90   26   42
+  26   8   76   80   90   37   87   56   79   5   87   8   2   39   73   64
+  36   90   72   78   36   73   51   33   20   41   2   26   37   33   8   14
+  33   81   55   1   9   12   39   64   87   72   34   82   21   34   99   62
+  74   41   69   22   75   27   58   8   79   77   26   26   55   {}   29
+  30   7   {}   66   55   2   34   64   {}   33   {}   44   84   {}   {}   95
+  85   19   {}   83   {}   91   {}   {}   9   50   91   33   34   {}   {}
+  84   {}   7   9   {}   {}   {}   44   {}   {}   {}   {}   91   84   {}   95
+  95   52   {}   {}   {}   {}   {}   21   {}   {}   {}   58   {}   {}   {}
+  {}   {}   {}   {}   83   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}}
+
+do_execsql_test 1.1.12.2 {
+  SELECT lead(b,b) OVER (PARTITION BY b%10 ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   81   {}   {}   {}   21   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   62   {}   {}   {}   12   {}   {}   {}   72
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   53   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   34   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   95   {}   {}   {}   {}   {}   {}   85   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   56   {}   36   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   57   {}   {}   {}   {}   {}   7   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   8   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.1.12.3 {
+  SELECT lead(b,b) OVER ( ORDER BY b,a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {1   2   3   3   5   6   7   8   8   9   9   10   11   12   12   13   13
+  14   15   16   16   17   19   20   21   22   23   24   25   26   27   27
+  28   29   30   31   32   33   33   33   34   34   35   36   36   36   37
+  38   39   39   40   41   42   43   43   44   46   47   47   47   49   50
+  52   53   54   55   56   56   57   58   58   58   59   59   59   60   61
+  62   62   64   65   65   67   69   70   72   72   73   74   74   75   75
+  75   77   78   80   81   81   83   84   84   85   85   85   87   88   89
+  89   89   90   90   91   91   91   93   93   94   95   95   96   97   97
+  98   99   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.1.12.4 {
+  SELECT lead(b,b) OVER ( PARTITION BY b%10 ORDER BY b,a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {80   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   1
+  11   81   81   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   12   12   72   82   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   13   23   73   73   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   34   84   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   35   85   85   95   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   36   86   96   96   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   37   47
+  47   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   58   58   68   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   39   49   59   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.1.12.5 {
+  SELECT lead(b,b) OVER ( ORDER BY b%10,a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {34   72   91   74   21   55   23   94   84   95   2   13   61   22   55
+  55   94   85   75   81   65   73   74   21   72   12   94   33   63   73
+  72   96   36   76   3   25   62   3   73   34   12   46   43   93   72   16
+  86   63   15   65   36   77   24   57   25   53   95   34   95   16   97
+  74   97   67   25   98   44   34   65   54   5   68   96   28   47   95
+  34   39   8   38   6   46   96   28   47   95   56   39   99   97   76   8
+  26   9   79   27   95   16   29   {}   58   58   77   85   56   {}   98
+  29   {}   19   96   {}   {}   78   56   98   36   97   {}   89   89   29
+  47   78   {}   {}   {}   38   68   58   {}   58   38   {}   98   {}   {}
+  {}   39   57   9   {}   79   {}   {}   7   {}   {}   {}   9   29   38   78
+  {}   {}   {}   8   39   {}   {}   {}   {}   59   {}   99   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.1.12.6 {
+  SELECT lead(b,b) OVER (PARTITION BY b%2,a ORDER BY b%10 RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.1.13.1 {
+  SELECT lag(b,b) OVER (ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   38   {}   {}   {}   {}
+  {}   {}   {}   6   {}   {}   {}   {}   {}   81   46   6   {}   {}   {}   {}
+  23   {}   {}   {}   {}   {}   27   {}   {}   {}   35   6   {}   12   {}
+  23   {}   {}   61   84   {}   93   39   47   {}   54   46   96   56   {}
+  16   {}   {}   {}   {}   89   {}   16   43   {}   85   56   29   99   53
+  {}   59   {}   {}   91   59   53   84   99   {}   93   63   47   {}   {}
+  98   33   67   35   75   1   23   13   55   27   75   98   35   73   63   2
+  21   27   13   24   86   23   84   31   20   94   61   65   75   23   36
+  94   55   90   41   77   96   56   29   40   12   89   63   11   5   73
+  79   1   16   28   31   73   5   39   53   63   41   11   40   2   13   33
+  9   29   90   47   72   9   73   30   44   33   74   93   29   74   42   34
+  63   41   34   96   47   77   1   36   74   72   14   36   26   77   9   72
+  64   8   91   31   52   30}
+
+do_execsql_test 1.1.13.2 {
+  SELECT lag(b,b) OVER (PARTITION BY b%10 ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   61   {}   81   {}   {}   {}   {}
+  1   {}   {}   {}   {}   {}   {}   {}   {}   {}   22   {}   {}   {}   12
+  {}   {}   62   {}   {}   {}   {}   {}   {}   {}   23   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   43   {}   23   {}   {}   {}   {}   {}
+  {}   54   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   75   {}
+  {}   {}   {}   {}   {}   55   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   47   {}   {}   {}   {}
+  {}   27   7   {}   {}   {}   {}   {}   {}   {}   {}   {}   68   {}   8   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   89   {}   {}
+  {}   {}   {}   {}   {}   29   9   {}   {}   {}}
+
+do_execsql_test 1.1.13.3 {
+  SELECT lag(b,b) OVER ( ORDER BY b,a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {{}   1   1   1   1   2   2   2   2   2   2   3   3   3   4   4   5   6   6
+  6   7   7   7   7   7   8   8   8   8   8   8   9   9   9   9   9   9   9
+  9   9   9   10   10   10   10   11   11   11   11   11   12   12   12   12
+  13   13   13   13   13   14   15   15   15   15   16   16   16   16   16
+  17   19   20   20   21   21   21   21   22   22   22   22   23   23   23
+  23   23   24   23   24   24   25   26   26   26   26   26   26   26   26
+  26   26   26   27   27   27   27   28   29   29   29   29   30   30   30
+  30   30   30   31   31   31   31   31   32   32   32   32   32   32   31
+  32   33   33   33   33   33   33   34   34   34   34   34   34   34   34
+  35   35   35   35   35   36   36   36   36   36   36   36   37   37   37
+  38   38   38   38   38   38   39   39   39   39   40   40   41   41   42
+  43   42   43   43   43   43   44   44   44   46   46   46   47   47   47
+  47   47}
+
+do_execsql_test 1.1.13.4 {
+  SELECT lag(b,b) OVER ( PARTITION BY b%10 ORDER BY b,a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  1   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.1.13.5 {
+  SELECT lag(b,b) OVER ( ORDER BY b%10,a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   61   80   81   {}   {}   {}   {}
+  1   {}   {}   {}   30   {}   21   90   61   {}   22   {}   11   41   12
+  {}   {}   62   {}   {}   {}   {}   31   {}   50   23   30   21   90   {}
+  {}   62   {}   {}   81   {}   22   43   62   23   32   {}   91   {}   90
+  93   54   {}   {}   90   72   12   22   90   81   83   23   80   20   72
+  43   51   33   80   90   2   34   54   1   20   62   12   13   75   44   30
+  93   91   1   21   55   61   61   13   85   3   65   65   91   73   33   93
+  55   84   62   31   11   65   35   85   33   55   15   12   75   22   3
+  73   65   36   85   43   95   43   13   47   44   65   65   96   36   27
+  7   46   34   94   47   36   73   34   35   73   68   24   8   75   85   75
+  66   34   95   36   84   77   46   34   84   47   89   65   36   16   38
+  76   58   57   29   9   44   56   17}
+
+do_execsql_test 1.1.13.6 {
+  SELECT lag(b,b) OVER (PARTITION BY b%2,a ORDER BY b%10 RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.1.14.1 {
+  SELECT string_agg(CAST(b AS TEXT), '.') OVER (ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t2
+} {89   89.81   89.81.96   89.81.96.59   89.81.96.59.38   89.81.96.59.38.68
+  89.81.96.59.38.68.39   89.81.96.59.38.68.39.62   89.81.96.59.38.68.39.62.91
+  89.81.96.59.38.68.39.62.91.46   89.81.96.59.38.68.39.62.91.46.6
+  89.81.96.59.38.68.39.62.91.46.6.99   89.81.96.59.38.68.39.62.91.46.6.99.97
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16
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+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93
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+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7}
+
+do_execsql_test 1.1.14.2 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (PARTITION BY b%10 ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t2
+} {90   90.40   90.40.30   90.40.30.80   90.40.30.80.20   90.40.30.80.20.90
+  90.40.30.80.20.90.60   90.40.30.80.20.90.60.70   90.40.30.80.20.90.60.70.80
+  90.40.30.80.20.90.60.70.80.90   90.40.30.80.20.90.60.70.80.90.30
+  90.40.30.80.20.90.60.70.80.90.30.50
+  90.40.30.80.20.90.60.70.80.90.30.50.10
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30   81   81.91   81.91.61
+  81.91.61.91   81.91.61.91.91   81.91.61.91.91.1   81.91.61.91.91.1.81
+  81.91.61.91.91.1.81.41   81.91.61.91.91.1.81.41.61
+  81.91.61.91.91.1.81.41.61.1   81.91.61.91.91.1.81.41.61.1.21
+  81.91.61.91.91.1.81.41.61.1.21.11   81.91.61.91.91.1.81.41.61.1.21.11.51
+  81.91.61.91.91.1.81.41.61.1.21.11.51.41
+  81.91.61.91.91.1.81.41.61.1.21.11.51.41.31
+  81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31
+  81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11
+  81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81
+  81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91
+  81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91
+  81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21   62   62.12
+  62.12.32   62.12.32.22   62.12.32.22.42   62.12.32.22.42.2
+  62.12.32.22.42.2.72   62.12.32.22.42.2.72.12   62.12.32.22.42.2.72.12.22
+  62.12.32.22.42.2.72.12.22.2   62.12.32.22.42.2.72.12.22.2.72
+  62.12.32.22.42.2.72.12.22.2.72.72   62.12.32.22.42.2.72.12.22.2.72.72.12
+  62.12.32.22.42.2.72.12.22.2.72.72.12.62
+  62.12.32.22.42.2.72.12.22.2.72.72.12.62.52
+  62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82   93   93.23   93.23.93
+  93.23.93.43   93.23.93.43.3   93.23.93.43.3.43   93.23.93.43.3.43.33
+  93.23.93.43.3.43.33.53   93.23.93.43.3.43.33.53.63
+  93.23.93.43.3.43.33.53.63.73   93.23.93.43.3.43.33.53.63.73.13
+  93.23.93.43.3.43.33.53.63.73.13.73   93.23.93.43.3.43.33.53.63.73.13.73.73
+  93.23.93.43.3.43.33.53.63.73.13.73.73.33
+  93.23.93.43.3.43.33.53.63.73.13.73.73.33.93
+  93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23
+  93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13
+  93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33
+  93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3
+  93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33
+  93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83   54   54.84
+  54.84.74   54.84.74.24   54.84.74.24.4   54.84.74.24.4.94
+  54.84.74.24.4.94.84   54.84.74.24.4.94.84.74   54.84.74.24.4.94.84.74.34
+  54.84.74.24.4.94.84.74.34.34   54.84.74.24.4.94.84.74.34.34.44
+  54.84.74.24.4.94.84.74.34.34.44.74   54.84.74.24.4.94.84.74.34.34.44.74.64
+  54.84.74.24.4.94.84.74.34.34.44.74.64.14
+  54.84.74.24.4.94.84.74.34.34.44.74.64.14.34
+  54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84
+  54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84
+  54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44
+  54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34   65   65.35
+  65.35.85   65.35.85.85   65.35.85.85.55   65.35.85.85.55.15
+  65.35.85.85.55.15.25   65.35.85.85.55.15.25.75   65.35.85.85.55.15.25.75.95
+  65.35.85.85.55.15.25.75.95.65   65.35.85.85.55.15.25.75.95.65.65
+  65.35.85.85.55.15.25.75.95.65.65.35   65.35.85.85.55.15.25.75.95.65.65.35.5
+  65.35.85.85.55.15.25.75.95.65.65.35.5.15
+  65.35.85.85.55.15.25.75.95.65.65.35.5.15.95
+  65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55
+  65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75
+  65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85
+  65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75
+  65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15
+  65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95   96   96.46
+  96.46.6   96.46.6.46   96.46.6.46.16   96.46.6.46.16.16
+  96.46.6.46.16.16.86   96.46.6.46.16.16.86.56   96.46.6.46.16.16.86.56.56
+  96.46.6.46.16.16.86.56.56.56   96.46.6.46.16.16.86.56.56.56.16
+  96.46.6.46.16.16.86.56.56.56.16.36   96.46.6.46.16.16.86.56.56.56.16.36.76
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96.96
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36   97   97.27
+  97.27.97   97.27.97.67   97.27.97.67.77   97.27.97.67.77.47
+  97.27.97.67.77.47.7   97.27.97.67.77.47.7.47   97.27.97.67.77.47.7.47.87
+  97.27.97.67.77.47.7.47.87.37   97.27.97.67.77.47.7.47.87.37.87
+  97.27.97.67.77.47.7.47.87.37.87.77   97.27.97.67.77.47.7.47.87.37.87.77.7
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7   38   38.68
+  38.68.78   38.68.78.8   38.68.78.8.28   38.68.78.8.28.98
+  38.68.78.8.28.98.78   38.68.78.8.28.98.78.58   38.68.78.8.28.98.78.58.98
+  38.68.78.8.28.98.78.58.98.8   38.68.78.8.28.98.78.58.98.8.88
+  38.68.78.8.28.98.78.58.98.8.88.8   38.68.78.8.28.98.78.58.98.8.88.8.58
+  38.68.78.8.28.98.78.58.98.8.88.8.58.58
+  38.68.78.8.28.98.78.58.98.8.88.8.58.58.58
+  38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38   89   89.59   89.59.39
+  89.59.39.99   89.59.39.99.29   89.59.39.99.29.59   89.59.39.99.29.59.89
+  89.59.39.99.29.59.89.89   89.59.39.99.29.59.89.89.29
+  89.59.39.99.29.59.89.89.29.9   89.59.39.99.29.59.89.89.29.9.79
+  89.59.39.99.29.59.89.89.29.9.79.49   89.59.39.99.29.59.89.89.29.9.79.49.59
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39}
+
+do_execsql_test 1.1.14.3 {
+  SELECT string_agg(CAST(b AS TEXT), '.') OVER ( ORDER BY b,a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {1   1.1   1.1.2   1.1.2.2   1.1.2.2.3   1.1.2.2.3.3   1.1.2.2.3.3.4
+  1.1.2.2.3.3.4.5   1.1.2.2.3.3.4.5.6   1.1.2.2.3.3.4.5.6.7
+  1.1.2.2.3.3.4.5.6.7.7   1.1.2.2.3.3.4.5.6.7.7.7   1.1.2.2.3.3.4.5.6.7.7.7.8
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8   1.1.2.2.3.3.4.5.6.7.7.7.8.8.8
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9   1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36
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+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99}
+
+do_execsql_test 1.1.14.4 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( PARTITION BY b%10 ORDER BY b,a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {10   10.20   10.20.30   10.20.30.30   10.20.30.30.30   10.20.30.30.30.40
+  10.20.30.30.30.40.50   10.20.30.30.30.40.50.60   10.20.30.30.30.40.50.60.70
+  10.20.30.30.30.40.50.60.70.80   10.20.30.30.30.40.50.60.70.80.80
+  10.20.30.30.30.40.50.60.70.80.80.90
+  10.20.30.30.30.40.50.60.70.80.80.90.90
+  10.20.30.30.30.40.50.60.70.80.80.90.90.90   1   1.1   1.1.11   1.1.11.11
+  1.1.11.11.21   1.1.11.11.21.21   1.1.11.11.21.21.31   1.1.11.11.21.21.31.31
+  1.1.11.11.21.21.31.31.41   1.1.11.11.21.21.31.31.41.41
+  1.1.11.11.21.21.31.31.41.41.51   1.1.11.11.21.21.31.31.41.41.51.61
+  1.1.11.11.21.21.31.31.41.41.51.61.61
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81.81
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91   2   2.2
+  2.2.12   2.2.12.12   2.2.12.12.12   2.2.12.12.12.22   2.2.12.12.12.22.22
+  2.2.12.12.12.22.22.32   2.2.12.12.12.22.22.32.42
+  2.2.12.12.12.22.22.32.42.52   2.2.12.12.12.22.22.32.42.52.62
+  2.2.12.12.12.22.22.32.42.52.62.62   2.2.12.12.12.22.22.32.42.52.62.62.72
+  2.2.12.12.12.22.22.32.42.52.62.62.72.72
+  2.2.12.12.12.22.22.32.42.52.62.62.72.72.72
+  2.2.12.12.12.22.22.32.42.52.62.62.72.72.72.82   3   3.3   3.3.13
+  3.3.13.13   3.3.13.13.23   3.3.13.13.23.23   3.3.13.13.23.23.33
+  3.3.13.13.23.23.33.33   3.3.13.13.23.23.33.33.33
+  3.3.13.13.23.23.33.33.33.33   3.3.13.13.23.23.33.33.33.33.43
+  3.3.13.13.23.23.33.33.33.33.43.43   3.3.13.13.23.23.33.33.33.33.43.43.53
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63.73
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63.73.73
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63.73.73.73
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93   4   4.14
+  4.14.24   4.14.24.34   4.14.24.34.34   4.14.24.34.34.34
+  4.14.24.34.34.34.34   4.14.24.34.34.34.34.44   4.14.24.34.34.34.34.44.44
+  4.14.24.34.34.34.34.44.44.54   4.14.24.34.34.34.34.44.44.54.64
+  4.14.24.34.34.34.34.44.44.54.64.74   4.14.24.34.34.34.34.44.44.54.64.74.74
+  4.14.24.34.34.34.34.44.44.54.64.74.74.74
+  4.14.24.34.34.34.34.44.44.54.64.74.74.74.84
+  4.14.24.34.34.34.34.44.44.54.64.74.74.74.84.84
+  4.14.24.34.34.34.34.44.44.54.64.74.74.74.84.84.84
+  4.14.24.34.34.34.34.44.44.54.64.74.74.74.84.84.84.84
+  4.14.24.34.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94   5   5.15
+  5.15.15   5.15.15.15   5.15.15.15.25   5.15.15.15.25.35
+  5.15.15.15.25.35.35   5.15.15.15.25.35.35.55   5.15.15.15.25.35.35.55.55
+  5.15.15.15.25.35.35.55.55.65   5.15.15.15.25.35.35.55.55.65.65
+  5.15.15.15.25.35.35.55.55.65.65.65   5.15.15.15.25.35.35.55.55.65.65.65.75
+  5.15.15.15.25.35.35.55.55.65.65.65.75.75
+  5.15.15.15.25.35.35.55.55.65.65.65.75.75.75
+  5.15.15.15.25.35.35.55.55.65.65.65.75.75.75.85
+  5.15.15.15.25.35.35.55.55.65.65.65.75.75.75.85.85
+  5.15.15.15.25.35.35.55.55.65.65.65.75.75.75.85.85.85
+  5.15.15.15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95
+  5.15.15.15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95
+  5.15.15.15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95   6   6.16
+  6.16.16   6.16.16.16   6.16.16.16.26   6.16.16.16.26.26
+  6.16.16.16.26.26.36   6.16.16.16.26.26.36.36   6.16.16.16.26.26.36.36.36
+  6.16.16.16.26.26.36.36.36.36   6.16.16.16.26.26.36.36.36.36.46
+  6.16.16.16.26.26.36.36.36.36.46.46   6.16.16.16.26.26.36.36.36.36.46.46.56
+  6.16.16.16.26.26.36.36.36.36.46.46.56.56
+  6.16.16.16.26.26.36.36.36.36.46.46.56.56.56
+  6.16.16.16.26.26.36.36.36.36.46.46.56.56.56.66
+  6.16.16.16.26.26.36.36.36.36.46.46.56.56.56.66.76
+  6.16.16.16.26.26.36.36.36.36.46.46.56.56.56.66.76.86
+  6.16.16.16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96
+  6.16.16.16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96
+  6.16.16.16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96   7   7.7
+  7.7.7   7.7.7.17   7.7.7.17.27   7.7.7.17.27.27   7.7.7.17.27.27.37
+  7.7.7.17.27.27.37.37   7.7.7.17.27.27.37.37.47   7.7.7.17.27.27.37.37.47.47
+  7.7.7.17.27.27.37.37.47.47.47   7.7.7.17.27.27.37.37.47.47.47.47
+  7.7.7.17.27.27.37.37.47.47.47.47.57
+  7.7.7.17.27.27.37.37.47.47.47.47.57.67
+  7.7.7.17.27.27.37.37.47.47.47.47.57.67.77
+  7.7.7.17.27.27.37.37.47.47.47.47.57.67.77.77
+  7.7.7.17.27.27.37.37.47.47.47.47.57.67.77.77.87
+  7.7.7.17.27.27.37.37.47.47.47.47.57.67.77.77.87.87
+  7.7.7.17.27.27.37.37.47.47.47.47.57.67.77.77.87.87.97
+  7.7.7.17.27.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97   8   8.8   8.8.8
+  8.8.8.28   8.8.8.28.38   8.8.8.28.38.38   8.8.8.28.38.38.58
+  8.8.8.28.38.38.58.58   8.8.8.28.38.38.58.58.58   8.8.8.28.38.38.58.58.58.58
+  8.8.8.28.38.38.58.58.58.58.68   8.8.8.28.38.38.58.58.58.58.68.78
+  8.8.8.28.38.38.58.58.58.58.68.78.78
+  8.8.8.28.38.38.58.58.58.58.68.78.78.88
+  8.8.8.28.38.38.58.58.58.58.68.78.78.88.98
+  8.8.8.28.38.38.58.58.58.58.68.78.78.88.98.98   9   9.9   9.9.9   9.9.9.19
+  9.9.9.19.29   9.9.9.19.29.29   9.9.9.19.29.29.29   9.9.9.19.29.29.29.39
+  9.9.9.19.29.29.29.39.39   9.9.9.19.29.29.29.39.39.39
+  9.9.9.19.29.29.29.39.39.39.49   9.9.9.19.29.29.29.39.39.39.49.59
+  9.9.9.19.29.29.29.39.39.39.49.59.59
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99}
+
+do_execsql_test 1.1.14.5 {
+  SELECT string_agg(CAST(b AS TEXT), '.') OVER ( ORDER BY b%10,a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {90   90.40   90.40.30   90.40.30.80   90.40.30.80.20   90.40.30.80.20.90
+  90.40.30.80.20.90.60   90.40.30.80.20.90.60.70   90.40.30.80.20.90.60.70.80
+  90.40.30.80.20.90.60.70.80.90   90.40.30.80.20.90.60.70.80.90.30
+  90.40.30.80.20.90.60.70.80.90.30.50
+  90.40.30.80.20.90.60.70.80.90.30.50.10
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
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+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39}
+
+do_execsql_test 1.1.14.6 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (PARTITION BY b%2,a ORDER BY b%10 RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t2
+} {96   38   68   62   46   6   46   78   54   8   84   16   16   86   74   24
+  12   32   56   22   90   28   56   40   56   16   36   98   76   4   94
+  42   30   78   2   80   84   72   58   96   98   74   12   8   20   22   88
+  34   8   34   90   96   60   44   2   74   70   26   26   80   90   36   58
+  72   72   66   64   12   14   62   36   34   36   58   52   30   50   84
+  10   84   44   58   30   38   34   82   89   81   59   39   91   99   97
+  27   97   67   29   93   77   23   93   65   35   47   7   61   91   85
+  85   43   59   3   91   55   15   89   25   47   1   43   75   89   81   33
+  29   53   63   87   37   41   9   61   73   95   65   13   1   21   65   35
+  5   73   11   51   87   41   31   31   15   95   73   79   11   49   59
+  55   75   77   7   85   57   29   59   19   39   47   47   9   33   93   75
+  81   9   23   37   13   91   91   33   15   99   3   95   69   33   21   39
+  83   27   17   7}
+
+do_execsql_test 1.1.14.7 {
+  SELECT string_agg(CAST(b AS TEXT), '.') OVER (win1 ORDER BY b%10 RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) 
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a)
+    ORDER BY 1
+} {1   1   10   11   11   12   12   12   13   13   14   15   15   15   16   16
+  16   17   19   2   2   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   3   3   30   30   30   31   31   32   33   33
+  33   33   34   34   34   34   35   35   36   36   36   36   37   37   38
+  38   39   39   39   4   40   41   41   42   43   43   44   44   46   46
+  47   47   47   47   49   5   50   51   52   53   54   55   55   56   56
+  56   57   58   58   58   58   59   59   59   59   6   60   61   61   62
+  62   63   64   65   65   65   66   67   68   69   7   7   7   70   72   72
+  72   73   73   73   74   74   74   75   75   75   76   77   77   78   78
+  79   8   8   8   80   80   81   81   81   82   83   84   84   84   84   85
+  85   85   86   87   87   88   89   89   89   9   9   9   90   90   90   91
+  91   91   91   91   93   93   93   94   95   95   95   96   96   96   97
+  97   98   98   99   99}
+
+do_execsql_test 1.1.14.8 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (win1 RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) 
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a ORDER BY b%10)
+    ORDER BY 1
+} {1   1   10   11   11   12   12   12   13   13   14   15   15   15   16   16
+  16   17   19   2   2   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   3   3   30   30   30   31   31   32   33   33
+  33   33   34   34   34   34   35   35   36   36   36   36   37   37   38
+  38   39   39   39   4   40   41   41   42   43   43   44   44   46   46
+  47   47   47   47   49   5   50   51   52   53   54   55   55   56   56
+  56   57   58   58   58   58   59   59   59   59   6   60   61   61   62
+  62   63   64   65   65   65   66   67   68   69   7   7   7   70   72   72
+  72   73   73   73   74   74   74   75   75   75   76   77   77   78   78
+  79   8   8   8   80   80   81   81   81   82   83   84   84   84   84   85
+  85   85   86   87   87   88   89   89   89   9   9   9   90   90   90   91
+  91   91   91   91   93   93   93   94   95   95   95   96   96   96   97
+  97   98   98   99   99}
+
+do_execsql_test 1.1.14.9 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER win2
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a ORDER BY b%10),
+           win2 AS (win1 RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+    ORDER BY 1
+} {1   1   10   11   11   12   12   12   13   13   14   15   15   15   16   16
+  16   17   19   2   2   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   3   3   30   30   30   31   31   32   33   33
+  33   33   34   34   34   34   35   35   36   36   36   36   37   37   38
+  38   39   39   39   4   40   41   41   42   43   43   44   44   46   46
+  47   47   47   47   49   5   50   51   52   53   54   55   55   56   56
+  56   57   58   58   58   58   59   59   59   59   6   60   61   61   62
+  62   63   64   65   65   65   66   67   68   69   7   7   7   70   72   72
+  72   73   73   73   74   74   74   75   75   75   76   77   77   78   78
+  79   8   8   8   80   80   81   81   81   82   83   84   84   84   84   85
+  85   85   86   87   87   88   89   89   89   9   9   9   90   90   90   91
+  91   91   91   91   93   93   93   94   95   95   95   96   96   96   97
+  97   98   98   99   99}
+
+do_execsql_test 1.1.15.1 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE a%2=0) OVER win FROM t2
+    WINDOW win AS (ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+} {1 89   2 89   3 89.96   4 89.96   5 89.96.38   6 89.96.38   7 89.96.38.39
+  8 89.96.38.39   9 89.96.38.39.91   10 89.96.38.39.91   11 89.96.38.39.91.6
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+  173 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52
+  174 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52
+  175 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50
+  176 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50
+  177 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10
+  178 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10
+  179 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33
+  180 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33
+  181 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39
+  182 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39
+  183 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58
+  184 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58
+  185 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38
+  186 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38
+  187 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83
+  188 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83
+  189 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82
+  190 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7}
+
+do_execsql_test 1.1.15.2 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE 0=1) OVER win FROM t2
+    WINDOW win AS (ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+} {1 {}   2 {}   3 {}   4 {}   5 {}   6 {}   7 {}   8 {}   9 {}   10 {}
+  11 {}   12 {}   13 {}   14 {}   15 {}   16 {}   17 {}   18 {}   19 {}
+  20 {}   21 {}   22 {}   23 {}   24 {}   25 {}   26 {}   27 {}   28 {}
+  29 {}   30 {}   31 {}   32 {}   33 {}   34 {}   35 {}   36 {}   37 {}
+  38 {}   39 {}   40 {}   41 {}   42 {}   43 {}   44 {}   45 {}   46 {}
+  47 {}   48 {}   49 {}   50 {}   51 {}   52 {}   53 {}   54 {}   55 {}
+  56 {}   57 {}   58 {}   59 {}   60 {}   61 {}   62 {}   63 {}   64 {}
+  65 {}   66 {}   67 {}   68 {}   69 {}   70 {}   71 {}   72 {}   73 {}
+  74 {}   75 {}   76 {}   77 {}   78 {}   79 {}   80 {}   81 {}   82 {}
+  83 {}   84 {}   85 {}   86 {}   87 {}   88 {}   89 {}   90 {}   91 {}
+  92 {}   93 {}   94 {}   95 {}   96 {}   97 {}   98 {}   99 {}   100 {}
+  101 {}   102 {}   103 {}   104 {}   105 {}   106 {}   107 {}   108 {}
+  109 {}   110 {}   111 {}   112 {}   113 {}   114 {}   115 {}   116 {}
+  117 {}   118 {}   119 {}   120 {}   121 {}   122 {}   123 {}   124 {}
+  125 {}   126 {}   127 {}   128 {}   129 {}   130 {}   131 {}   132 {}
+  133 {}   134 {}   135 {}   136 {}   137 {}   138 {}   139 {}   140 {}
+  141 {}   142 {}   143 {}   144 {}   145 {}   146 {}   147 {}   148 {}
+  149 {}   150 {}   151 {}   152 {}   153 {}   154 {}   155 {}   156 {}
+  157 {}   158 {}   159 {}   160 {}   161 {}   162 {}   163 {}   164 {}
+  165 {}   166 {}   167 {}   168 {}   169 {}   170 {}   171 {}   172 {}
+  173 {}   174 {}   175 {}   176 {}   177 {}   178 {}   179 {}   180 {}
+  181 {}   182 {}   183 {}   184 {}   185 {}   186 {}   187 {}   188 {}
+  189 {}   190 {}   191 {}}
+
+do_execsql_test 1.1.15.3 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE 1=0) OVER win FROM t2
+    WINDOW win AS (PARTITION BY (a%10) ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+} {1 {}   2 {}   3 {}   4 {}   5 {}   6 {}   7 {}   8 {}   9 {}   10 {}
+  11 {}   12 {}   13 {}   14 {}   15 {}   16 {}   17 {}   18 {}   19 {}
+  20 {}   1 {}   2 {}   3 {}   4 {}   5 {}   6 {}   7 {}   8 {}   9 {}
+  10 {}   11 {}   12 {}   13 {}   14 {}   15 {}   16 {}   17 {}   18 {}
+  19 {}   1 {}   2 {}   3 {}   4 {}   5 {}   6 {}   7 {}   8 {}   9 {}
+  10 {}   11 {}   12 {}   13 {}   14 {}   15 {}   16 {}   17 {}   18 {}
+  19 {}   1 {}   2 {}   3 {}   4 {}   5 {}   6 {}   7 {}   8 {}   9 {}
+  10 {}   11 {}   12 {}   13 {}   14 {}   15 {}   16 {}   17 {}   18 {}
+  19 {}   1 {}   2 {}   3 {}   4 {}   5 {}   6 {}   7 {}   8 {}   9 {}
+  10 {}   11 {}   12 {}   13 {}   14 {}   15 {}   16 {}   17 {}   18 {}
+  19 {}   1 {}   2 {}   3 {}   4 {}   5 {}   6 {}   7 {}   8 {}   9 {}
+  10 {}   11 {}   12 {}   13 {}   14 {}   15 {}   16 {}   17 {}   18 {}
+  19 {}   1 {}   2 {}   3 {}   4 {}   5 {}   6 {}   7 {}   8 {}   9 {}
+  10 {}   11 {}   12 {}   13 {}   14 {}   15 {}   16 {}   17 {}   18 {}
+  19 {}   1 {}   2 {}   3 {}   4 {}   5 {}   6 {}   7 {}   8 {}   9 {}
+  10 {}   11 {}   12 {}   13 {}   14 {}   15 {}   16 {}   17 {}   18 {}
+  19 {}   1 {}   2 {}   3 {}   4 {}   5 {}   6 {}   7 {}   8 {}   9 {}
+  10 {}   11 {}   12 {}   13 {}   14 {}   15 {}   16 {}   17 {}   18 {}
+  19 {}   1 {}   2 {}   3 {}   4 {}   5 {}   6 {}   7 {}   8 {}   9 {}
+  10 {}   11 {}   12 {}   13 {}   14 {}   15 {}   16 {}   17 {}   18 {}
+  19 {}}
+
+do_execsql_test 1.1.15.4 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE a%2=0) OVER win FROM t2
+    WINDOW win AS (PARTITION BY (a%10) ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+} {1 89   2 89.6   3 89.6.29   4 89.6.29.47   5 89.6.29.47.59
+  6 89.6.29.47.59.28   7 89.6.29.47.59.28.75   8 89.6.29.47.59.28.75.78
+  9 89.6.29.47.59.28.75.78.72   10 89.6.29.47.59.28.75.78.72.98
+  11 89.6.29.47.59.28.75.78.72.98.87   12 89.6.29.47.59.28.75.78.72.98.87.73
+  13 89.6.29.47.59.28.75.78.72.98.87.73.96
+  14 89.6.29.47.59.28.75.78.72.98.87.73.96.74
+  15 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90
+  16 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75
+  17 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91
+  18 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69
+  19 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7   1 {}   2 {}
+  3 {}   4 {}   5 {}   6 {}   7 {}   8 {}   9 {}   10 {}   11 {}   12 {}
+  13 {}   14 {}   15 {}   16 {}   17 {}   18 {}   19 {}   1 96   2 96.97
+  3 96.97.84   4 96.97.84.86   5 96.97.84.86.32   6 96.97.84.86.32.25
+  7 96.97.84.86.32.25.89   8 96.97.84.86.32.25.89.29
+  9 96.97.84.86.32.25.89.29.9   10 96.97.84.86.32.25.89.29.9.21
+  11 96.97.84.86.32.25.89.29.9.21.12   12 96.97.84.86.32.25.89.29.9.21.12.88
+  13 96.97.84.86.32.25.89.29.9.21.12.88.55
+  14 96.97.84.86.32.25.89.29.9.21.12.88.55.70
+  15 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58
+  16 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81
+  17 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91
+  18 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58   1 {}   2 {}
+  3 {}   4 {}   5 {}   6 {}   7 {}   8 {}   9 {}   10 {}   11 {}   12 {}
+  13 {}   14 {}   15 {}   16 {}   17 {}   18 {}   19 {}   1 38   2 38.46
+  3 38.46.23   4 38.46.23.61   5 38.46.23.61.3   6 38.46.23.61.3.1
+  7 38.46.23.61.3.1.76   8 38.46.23.61.3.1.76.63   9 38.46.23.61.3.1.76.63.73
+  10 38.46.23.61.3.1.76.63.73.65   11 38.46.23.61.3.1.76.63.73.65.20
+  12 38.46.23.61.3.1.76.63.73.65.20.8
+  13 38.46.23.61.3.1.76.63.73.65.20.8.77
+  14 38.46.23.61.3.1.76.63.73.65.20.8.77.19
+  15 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9
+  16 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23
+  17 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15
+  18 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38   1 {}   2 {}
+  3 {}   4 {}   5 {}   6 {}   7 {}   8 {}   9 {}   10 {}   11 {}   12 {}
+  13 {}   14 {}   15 {}   16 {}   17 {}   18 {}   19 {}   1 39   2 39.54
+  3 39.54.16   4 39.54.16.85   5 39.54.16.85.22   6 39.54.16.85.22.40
+  7 39.54.16.85.22.40.4   8 39.54.16.85.22.40.4.87
+  9 39.54.16.85.22.40.4.87.65   10 39.54.16.85.22.40.4.87.65.5
+  11 39.54.16.85.22.40.4.87.65.5.31   12 39.54.16.85.22.40.4.87.65.5.31.49
+  13 39.54.16.85.22.40.4.87.65.5.31.49.2
+  14 39.54.16.85.22.40.4.87.65.5.31.49.2.26
+  15 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72
+  16 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13
+  17 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36
+  18 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83   1 {}   2 {}
+  3 {}   4 {}   5 {}   6 {}   7 {}   8 {}   9 {}   10 {}   11 {}   12 {}
+  13 {}   14 {}   15 {}   16 {}   17 {}   18 {}   19 {}   1 91   2 91.8
+  3 91.8.65   4 91.8.65.85   5 91.8.65.85.55   6 91.8.65.85.55.56
+  7 91.8.65.85.55.56.42   8 91.8.65.85.55.56.42.80
+  9 91.8.65.85.55.56.42.80.58   10 91.8.65.85.55.56.42.80.58.11
+  11 91.8.65.85.55.56.42.80.58.11.95   12 91.8.65.85.55.56.42.80.58.11.95.90
+  13 91.8.65.85.55.56.42.80.58.11.95.90.85
+  14 91.8.65.85.55.56.42.80.58.11.95.90.85.47
+  15 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33
+  16 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14
+  17 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3
+  18 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82   1 {}   2 {}
+  3 {}   4 {}   5 {}   6 {}   7 {}   8 {}   9 {}   10 {}   11 {}   12 {}
+  13 {}   14 {}   15 {}   16 {}   17 {}   18 {}   19 {}}
+
+do_execsql_test 1.2.2.1 {
+  SELECT max(b) OVER ( ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99}
+
+do_execsql_test 1.2.2.2 {
+  SELECT min(b) OVER ( ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1}
+
+do_execsql_test 1.2.3.1 {
+  SELECT row_number() OVER ( ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.2.3.2 {
+  SELECT row_number() OVER ( PARTITION BY b%10 ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.2.3.3 {
+  SELECT row_number() OVER ( RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.2.4.1 {
+  SELECT dense_rank() OVER ( ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.2.4.2 {
+  SELECT dense_rank() OVER ( PARTITION BY b%10 ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.2.4.3 {
+  SELECT dense_rank() OVER ( ORDER BY b RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   2   2   3   3   4   5   6   7   7   7   8   8   8   9   9   9   10
+  11   11   12   12   12   13   13   14   15   15   15   16   16   16   17
+  18   19   20   20   21   21   22   22   23   24   25   25   26   26   27
+  28   28   28   29   29   29   30   30   31   32   32   32   32   33   33
+  33   33   34   34   35   35   35   35   36   36   37   37   38   38   38
+  39   40   40   41   42   42   43   43   44   44   45   45   45   45   46
+  47   48   49   50   51   52   52   53   53   53   54   55   55   55   55
+  56   56   56   56   57   58   58   59   59   60   61   62   62   62   63
+  64   65   66   67   68   68   68   69   69   69   70   70   70   71   71
+  71   72   73   73   74   74   75   76   76   77   77   77   78   79   80
+  80   80   80   81   81   81   82   83   83   84   85   85   85   86   86
+  86   87   87   87   87   87   88   88   88   89   90   90   90   91   91
+  91   92   92   93   93   94   94}
+
+do_execsql_test 1.2.4.4 {
+  SELECT dense_rank() OVER ( PARTITION BY b%10 ORDER BY b RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   3   3   4   5   6   7   8   8   9   9   9   1   1   2   2   3
+  3   4   4   5   5   6   7   7   8   8   8   9   9   9   9   9   1   1   2
+  2   2   3   3   4   5   6   7   7   8   8   8   9   1   1   2   2   3   3
+  4   4   4   4   5   5   6   7   8   8   8   9   10   10   10   1   2   3
+  4   4   4   4   5   5   6   7   8   8   8   9   9   9   9   10   1   2   2
+  2   3   4   4   5   5   6   6   6   7   7   7   8   8   8   9   9   9   1
+  2   2   2   3   3   4   4   4   4   5   5   6   6   6   7   8   9   10   10
+  10   1   1   1   2   3   3   4   4   5   5   5   5   6   7   8   8   9   9
+  10   10   1   1   1   2   3   3   4   4   4   4   5   6   6   7   8   8   1
+  1   1   2   3   3   3   4   4   4   5   6   6   6   6   7   8   9   9   9
+  10   10}
+
+do_execsql_test 1.2.4.5 {
+  SELECT dense_rank() OVER ( ORDER BY b%10 RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   4   4   4   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5   5   5   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   6   6   6   6
+  6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   7   7
+  7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7
+  8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8
+  8   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   10   10
+  10   10   10   10   10   10   10   10   10   10   10   10   10   10   10
+  10   10   10   10   10}
+
+do_execsql_test 1.2.4.6 {
+  SELECT dense_rank() OVER ( PARTITION BY b%2 ORDER BY b%10 RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   3   3   3   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   4   4   4   4   4   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   5   5   5   5   5   5
+  5   5   5   5   5   5   5   5   5   5   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5
+  5}
+
+do_execsql_test 1.2.5.1 {
+  SELECT rank() OVER ( ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.2.5.2 {
+  SELECT rank() OVER ( PARTITION BY b%10 ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.2.5.3 {
+  SELECT rank() OVER ( ORDER BY b RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   3   3   5   5   7   8   9   10   10   10   13   13   13   16   16
+  16   19   20   20   22   22   22   25   25   27   28   28   28   31   31
+  31   34   35   36   37   37   39   39   41   41   43   44   45   45   47
+  47   49   50   50   50   53   53   53   56   56   58   59   59   59   59
+  63   63   63   63   67   67   69   69   69   69   73   73   75   75   77
+  77   77   80   81   81   83   84   84   86   86   88   88   90   90   90
+  90   94   95   96   97   98   99   100   100   102   102   102   105   106
+  106   106   106   110   110   110   110   114   115   115   117   117   119
+  120   121   121   121   124   125   126   127   128   129   129   129   132
+  132   132   135   135   135   138   138   138   141   142   142   144   144
+  146   147   147   149   149   149   152   153   154   154   154   154   158
+  158   158   161   162   162   164   165   165   165   168   168   168   171
+  171   171   171   171   176   176   176   179   180   180   180   183   183
+  183   186   186   188   188   190   190}
+
+do_execsql_test 1.2.5.4 {
+  SELECT rank() OVER ( PARTITION BY b%10 ORDER BY b RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   3   3   6   7   8   9   10   10   12   12   12   1   1   3   3
+  5   5   7   7   9   9   11   12   12   14   14   14   17   17   17   17
+  17   1   1   3   3   3   6   6   8   9   10   11   11   13   13   13   16
+  1   1   3   3   5   5   7   7   7   7   11   11   13   14   15   15   15
+  18   19   19   19   1   2   3   4   4   4   4   8   8   10   11   12   12
+  12   15   15   15   15   19   1   2   2   2   5   6   6   8   8   10   10
+  10   13   13   13   16   16   16   19   19   19   1   2   2   2   5   5   7
+  7   7   7   11   11   13   13   13   16   17   18   19   19   19   1   1
+  1   4   5   5   7   7   9   9   9   9   13   14   15   15   17   17   19
+  19   1   1   1   4   5   5   7   7   7   7   11   12   12   14   15   15
+  1   1   1   4   5   5   5   8   8   8   11   12   12   12   12   16   17
+  18   18   18   21   21}
+
+do_execsql_test 1.2.5.5 {
+  SELECT rank() OVER ( ORDER BY b%10 RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   15   15   15   15
+  15   15   15   15   15   15   15   15   15   15   15   15   15   15   15
+  15   15   36   36   36   36   36   36   36   36   36   36   36   36   36
+  36   36   36   52   52   52   52   52   52   52   52   52   52   52   52
+  52   52   52   52   52   52   52   52   52   73   73   73   73   73   73
+  73   73   73   73   73   73   73   73   73   73   73   73   73   92   92
+  92   92   92   92   92   92   92   92   92   92   92   92   92   92   92
+  92   92   92   92   113   113   113   113   113   113   113   113   113
+  113   113   113   113   113   113   113   113   113   113   113   113   134
+  134   134   134   134   134   134   134   134   134   134   134   134   134
+  134   134   134   134   134   134   154   154   154   154   154   154   154
+  154   154   154   154   154   154   154   154   154   170   170   170   170
+  170   170   170   170   170   170   170   170   170   170   170   170   170
+  170   170   170   170   170}
+
+do_execsql_test 1.2.5.6 {
+  SELECT rank() OVER ( PARTITION BY b%2 ORDER BY b%10 RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   15   15   15   15
+  15   15   15   15   15   15   15   15   15   15   15   15   31   31   31
+  31   31   31   31   31   31   31   31   31   31   31   31   31   31   31
+  31   50   50   50   50   50   50   50   50   50   50   50   50   50   50
+  50   50   50   50   50   50   50   71   71   71   71   71   71   71   71
+  71   71   71   71   71   71   71   71   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   22   22   22   22   22   22
+  22   22   22   22   22   22   22   22   22   22   22   22   22   22   22
+  43   43   43   43   43   43   43   43   43   43   43   43   43   43   43
+  43   43   43   43   43   43   64   64   64   64   64   64   64   64   64
+  64   64   64   64   64   64   64   64   64   64   64   84   84   84   84
+  84   84   84   84   84   84   84   84   84   84   84   84   84   84   84
+  84   84   84}
+
+do_execsql_test 1.2.6.1 {
+  SELECT 
+      row_number() OVER ( PARTITION BY b%2 ORDER BY b%10 RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ),
+      rank() OVER ( PARTITION BY b%2 ORDER BY b%10 RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ),
+      dense_rank() OVER ( PARTITION BY b%2 ORDER BY b%10 RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING )
+    FROM t2
+} {1 1 1   2 1 1   3 1 1   4 1 1   5 1 1   6 1 1   7 1 1   8 1 1   9 1 1
+  10 1 1   11 1 1   12 1 1   13 1 1   14 1 1   15 15 2   16 15 2   17 15 2
+  18 15 2   19 15 2   20 15 2   21 15 2   22 15 2   23 15 2   24 15 2
+  25 15 2   26 15 2   27 15 2   28 15 2   29 15 2   30 15 2   31 31 3
+  32 31 3   33 31 3   34 31 3   35 31 3   36 31 3   37 31 3   38 31 3
+  39 31 3   40 31 3   41 31 3   42 31 3   43 31 3   44 31 3   45 31 3
+  46 31 3   47 31 3   48 31 3   49 31 3   50 50 4   51 50 4   52 50 4
+  53 50 4   54 50 4   55 50 4   56 50 4   57 50 4   58 50 4   59 50 4
+  60 50 4   61 50 4   62 50 4   63 50 4   64 50 4   65 50 4   66 50 4
+  67 50 4   68 50 4   69 50 4   70 50 4   71 71 5   72 71 5   73 71 5
+  74 71 5   75 71 5   76 71 5   77 71 5   78 71 5   79 71 5   80 71 5
+  81 71 5   82 71 5   83 71 5   84 71 5   85 71 5   86 71 5   1 1 1   2 1 1
+  3 1 1   4 1 1   5 1 1   6 1 1   7 1 1   8 1 1   9 1 1   10 1 1   11 1 1
+  12 1 1   13 1 1   14 1 1   15 1 1   16 1 1   17 1 1   18 1 1   19 1 1
+  20 1 1   21 1 1   22 22 2   23 22 2   24 22 2   25 22 2   26 22 2   27 22 2
+  28 22 2   29 22 2   30 22 2   31 22 2   32 22 2   33 22 2   34 22 2
+  35 22 2   36 22 2   37 22 2   38 22 2   39 22 2   40 22 2   41 22 2
+  42 22 2   43 43 3   44 43 3   45 43 3   46 43 3   47 43 3   48 43 3
+  49 43 3   50 43 3   51 43 3   52 43 3   53 43 3   54 43 3   55 43 3
+  56 43 3   57 43 3   58 43 3   59 43 3   60 43 3   61 43 3   62 43 3
+  63 43 3   64 64 4   65 64 4   66 64 4   67 64 4   68 64 4   69 64 4
+  70 64 4   71 64 4   72 64 4   73 64 4   74 64 4   75 64 4   76 64 4
+  77 64 4   78 64 4   79 64 4   80 64 4   81 64 4   82 64 4   83 64 4
+  84 84 5   85 84 5   86 84 5   87 84 5   88 84 5   89 84 5   90 84 5
+  91 84 5   92 84 5   93 84 5   94 84 5   95 84 5   96 84 5   97 84 5
+  98 84 5   99 84 5   100 84 5   101 84 5   102 84 5   103 84 5   104 84 5
+  105 84 5}
+
+
+do_test 1.2.7.1 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0053 0.0105 0.0158 0.0211 0.0263 0.0316 0.0368 0.0421 0.0474 0.0526 0.0579 0.0632 0.0684 0.0737 0.0789 0.0842 0.0895 0.0947 0.1000 0.1053 0.1105 0.1158 0.1211 0.1263 0.1316 0.1368 0.1421 0.1474 0.1526 0.1579 0.1632 0.1684 0.1737 0.1789 0.1842 0.1895 0.1947 0.2000 0.2053 0.2105 0.2158 0.2211 0.2263 0.2316 0.2368 0.2421 0.2474 0.2526 0.2579 0.2632 0.2684 0.2737 0.2789 0.2842 0.2895 0.2947 0.3000 0.3053 0.3105 0.3158 0.3211 0.3263 0.3316 0.3368 0.3421 0.3474 0.3526 0.3579 0.3632 0.3684 0.3737 0.3789 0.3842 0.3895 0.3947 0.4000 0.4053 0.4105 0.4158 0.4211 0.4263 0.4316 0.4368 0.4421 0.4474 0.4526 0.4579 0.4632 0.4684 0.4737 0.4789 0.4842 0.4895 0.4947 0.5000 0.5053 0.5105 0.5158 0.5211 0.5263 0.5316 0.5368 0.5421 0.5474 0.5526 0.5579 0.5632 0.5684 0.5737 0.5789 0.5842 0.5895 0.5947 0.6000 0.6053 0.6105 0.6158 0.6211 0.6263 0.6316 0.6368 0.6421 0.6474 0.6526 0.6579 0.6632 0.6684 0.6737 0.6789 0.6842 0.6895 0.6947 0.7000 0.7053 0.7105 0.7158 0.7211 0.7263 0.7316 0.7368 0.7421 0.7474 0.7526 0.7579 0.7632 0.7684 0.7737 0.7789 0.7842 0.7895 0.7947 0.8000 0.8053 0.8105 0.8158 0.8211 0.8263 0.8316 0.8368 0.8421 0.8474 0.8526 0.8579 0.8632 0.8684 0.8737 0.8789 0.8842 0.8895 0.8947 0.9000 0.9053 0.9105 0.9158 0.9211 0.9263 0.9316 0.9368 0.9421 0.9474 0.9526 0.9579 0.9632 0.9684 0.9737 0.9789 0.9842 0.9895 0.9947 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.2.7.2 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( PARTITION BY b%10 ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0769 0.1538 0.2308 0.3077 0.3846 0.4615 0.5385 0.6154 0.6923 0.7692 0.8462 0.9231 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0667 0.1333 0.2000 0.2667 0.3333 0.4000 0.4667 0.5333 0.6000 0.6667 0.7333 0.8000 0.8667 0.9333 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0556 0.1111 0.1667 0.2222 0.2778 0.3333 0.3889 0.4444 0.5000 0.5556 0.6111 0.6667 0.7222 0.7778 0.8333 0.8889 0.9444 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0526 0.1053 0.1579 0.2105 0.2632 0.3158 0.3684 0.4211 0.4737 0.5263 0.5789 0.6316 0.6842 0.7368 0.7895 0.8421 0.8947 0.9474 1.0000 0.0000 0.0667 0.1333 0.2000 0.2667 0.3333 0.4000 0.4667 0.5333 0.6000 0.6667 0.7333 0.8000 0.8667 0.9333 1.0000 0.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.2.7.3 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY b RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0105 0.0105 0.0211 0.0211 0.0316 0.0368 0.0421 0.0474 0.0474 0.0474 0.0632 0.0632 0.0632 0.0789 0.0789 0.0789 0.0947 0.1000 0.1000 0.1105 0.1105 0.1105 0.1263 0.1263 0.1368 0.1421 0.1421 0.1421 0.1579 0.1579 0.1579 0.1737 0.1789 0.1842 0.1895 0.1895 0.2000 0.2000 0.2105 0.2105 0.2211 0.2263 0.2316 0.2316 0.2421 0.2421 0.2526 0.2579 0.2579 0.2579 0.2737 0.2737 0.2737 0.2895 0.2895 0.3000 0.3053 0.3053 0.3053 0.3053 0.3263 0.3263 0.3263 0.3263 0.3474 0.3474 0.3579 0.3579 0.3579 0.3579 0.3789 0.3789 0.3895 0.3895 0.4000 0.4000 0.4000 0.4158 0.4211 0.4211 0.4316 0.4368 0.4368 0.4474 0.4474 0.4579 0.4579 0.4684 0.4684 0.4684 0.4684 0.4895 0.4947 0.5000 0.5053 0.5105 0.5158 0.5211 0.5211 0.5316 0.5316 0.5316 0.5474 0.5526 0.5526 0.5526 0.5526 0.5737 0.5737 0.5737 0.5737 0.5947 0.6000 0.6000 0.6105 0.6105 0.6211 0.6263 0.6316 0.6316 0.6316 0.6474 0.6526 0.6579 0.6632 0.6684 0.6737 0.6737 0.6737 0.6895 0.6895 0.6895 0.7053 0.7053 0.7053 0.7211 0.7211 0.7211 0.7368 0.7421 0.7421 0.7526 0.7526 0.7632 0.7684 0.7684 0.7789 0.7789 0.7789 0.7947 0.8000 0.8053 0.8053 0.8053 0.8053 0.8263 0.8263 0.8263 0.8421 0.8474 0.8474 0.8579 0.8632 0.8632 0.8632 0.8789 0.8789 0.8789 0.8947 0.8947 0.8947 0.8947 0.8947 0.9211 0.9211 0.9211 0.9368 0.9421 0.9421 0.9421 0.9579 0.9579 0.9579 0.9737 0.9737 0.9842 0.9842 0.9947 0.9947}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.2.7.4 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( PARTITION BY b%10 ORDER BY b RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0769 0.1538 0.1538 0.1538 0.3846 0.4615 0.5385 0.6154 0.6923 0.6923 0.8462 0.8462 0.8462 0.0000 0.0000 0.1000 0.1000 0.2000 0.2000 0.3000 0.3000 0.4000 0.4000 0.5000 0.5500 0.5500 0.6500 0.6500 0.6500 0.8000 0.8000 0.8000 0.8000 0.8000 0.0000 0.0000 0.1333 0.1333 0.1333 0.3333 0.3333 0.4667 0.5333 0.6000 0.6667 0.6667 0.8000 0.8000 0.8000 1.0000 0.0000 0.0000 0.1000 0.1000 0.2000 0.2000 0.3000 0.3000 0.3000 0.3000 0.5000 0.5000 0.6000 0.6500 0.7000 0.7000 0.7000 0.8500 0.9000 0.9000 0.9000 0.0000 0.0556 0.1111 0.1667 0.1667 0.1667 0.1667 0.3889 0.3889 0.5000 0.5556 0.6111 0.6111 0.6111 0.7778 0.7778 0.7778 0.7778 1.0000 0.0000 0.0500 0.0500 0.0500 0.2000 0.2500 0.2500 0.3500 0.3500 0.4500 0.4500 0.4500 0.6000 0.6000 0.6000 0.7500 0.7500 0.7500 0.9000 0.9000 0.9000 0.0000 0.0500 0.0500 0.0500 0.2000 0.2000 0.3000 0.3000 0.3000 0.3000 0.5000 0.5000 0.6000 0.6000 0.6000 0.7500 0.8000 0.8500 0.9000 0.9000 0.9000 0.0000 0.0000 0.0000 0.1579 0.2105 0.2105 0.3158 0.3158 0.4211 0.4211 0.4211 0.4211 0.6316 0.6842 0.7368 0.7368 0.8421 0.8421 0.9474 0.9474 0.0000 0.0000 0.0000 0.2000 0.2667 0.2667 0.4000 0.4000 0.4000 0.4000 0.6667 0.7333 0.7333 0.8667 0.9333 0.9333 0.0000 0.0000 0.0000 0.1429 0.1905 0.1905 0.1905 0.3333 0.3333 0.3333 0.4762 0.5238 0.5238 0.5238 0.5238 0.7143 0.7619 0.8095 0.8095 0.8095 0.9524 0.9524}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.2.7.5 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY b%10 RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.2.7.6 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER (PARTITION BY b%2 ORDER BY b%10 RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.2.8.1 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0052 0.0105 0.0157 0.0209 0.0262 0.0314 0.0366 0.0419 0.0471 0.0524 0.0576 0.0628 0.0681 0.0733 0.0785 0.0838 0.0890 0.0942 0.0995 0.1047 0.1099 0.1152 0.1204 0.1257 0.1309 0.1361 0.1414 0.1466 0.1518 0.1571 0.1623 0.1675 0.1728 0.1780 0.1832 0.1885 0.1937 0.1990 0.2042 0.2094 0.2147 0.2199 0.2251 0.2304 0.2356 0.2408 0.2461 0.2513 0.2565 0.2618 0.2670 0.2723 0.2775 0.2827 0.2880 0.2932 0.2984 0.3037 0.3089 0.3141 0.3194 0.3246 0.3298 0.3351 0.3403 0.3455 0.3508 0.3560 0.3613 0.3665 0.3717 0.3770 0.3822 0.3874 0.3927 0.3979 0.4031 0.4084 0.4136 0.4188 0.4241 0.4293 0.4346 0.4398 0.4450 0.4503 0.4555 0.4607 0.4660 0.4712 0.4764 0.4817 0.4869 0.4921 0.4974 0.5026 0.5079 0.5131 0.5183 0.5236 0.5288 0.5340 0.5393 0.5445 0.5497 0.5550 0.5602 0.5654 0.5707 0.5759 0.5812 0.5864 0.5916 0.5969 0.6021 0.6073 0.6126 0.6178 0.6230 0.6283 0.6335 0.6387 0.6440 0.6492 0.6545 0.6597 0.6649 0.6702 0.6754 0.6806 0.6859 0.6911 0.6963 0.7016 0.7068 0.7120 0.7173 0.7225 0.7277 0.7330 0.7382 0.7435 0.7487 0.7539 0.7592 0.7644 0.7696 0.7749 0.7801 0.7853 0.7906 0.7958 0.8010 0.8063 0.8115 0.8168 0.8220 0.8272 0.8325 0.8377 0.8429 0.8482 0.8534 0.8586 0.8639 0.8691 0.8743 0.8796 0.8848 0.8901 0.8953 0.9005 0.9058 0.9110 0.9162 0.9215 0.9267 0.9319 0.9372 0.9424 0.9476 0.9529 0.9581 0.9634 0.9686 0.9738 0.9791 0.9843 0.9895 0.9948 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.2.8.2 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%10 ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0714 0.1429 0.2143 0.2857 0.3571 0.4286 0.5000 0.5714 0.6429 0.7143 0.7857 0.8571 0.9286 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0625 0.1250 0.1875 0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250 0.6875 0.7500 0.8125 0.8750 0.9375 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0526 0.1053 0.1579 0.2105 0.2632 0.3158 0.3684 0.4211 0.4737 0.5263 0.5789 0.6316 0.6842 0.7368 0.7895 0.8421 0.8947 0.9474 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0625 0.1250 0.1875 0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250 0.6875 0.7500 0.8125 0.8750 0.9375 1.0000 0.0455 0.0909 0.1364 0.1818 0.2273 0.2727 0.3182 0.3636 0.4091 0.4545 0.5000 0.5455 0.5909 0.6364 0.6818 0.7273 0.7727 0.8182 0.8636 0.9091 0.9545 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.2.8.3 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY b RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0105 0.0105 0.0209 0.0209 0.0314 0.0314 0.0366 0.0419 0.0471 0.0628 0.0628 0.0628 0.0785 0.0785 0.0785 0.0942 0.0942 0.0942 0.0995 0.1099 0.1099 0.1257 0.1257 0.1257 0.1361 0.1361 0.1414 0.1571 0.1571 0.1571 0.1728 0.1728 0.1728 0.1780 0.1832 0.1885 0.1990 0.1990 0.2094 0.2094 0.2199 0.2199 0.2251 0.2304 0.2408 0.2408 0.2513 0.2513 0.2565 0.2723 0.2723 0.2723 0.2880 0.2880 0.2880 0.2984 0.2984 0.3037 0.3246 0.3246 0.3246 0.3246 0.3455 0.3455 0.3455 0.3455 0.3560 0.3560 0.3770 0.3770 0.3770 0.3770 0.3874 0.3874 0.3979 0.3979 0.4136 0.4136 0.4136 0.4188 0.4293 0.4293 0.4346 0.4450 0.4450 0.4555 0.4555 0.4660 0.4660 0.4869 0.4869 0.4869 0.4869 0.4921 0.4974 0.5026 0.5079 0.5131 0.5183 0.5288 0.5288 0.5445 0.5445 0.5445 0.5497 0.5707 0.5707 0.5707 0.5707 0.5916 0.5916 0.5916 0.5916 0.5969 0.6073 0.6073 0.6178 0.6178 0.6230 0.6283 0.6440 0.6440 0.6440 0.6492 0.6545 0.6597 0.6649 0.6702 0.6859 0.6859 0.6859 0.7016 0.7016 0.7016 0.7173 0.7173 0.7173 0.7330 0.7330 0.7330 0.7382 0.7487 0.7487 0.7592 0.7592 0.7644 0.7749 0.7749 0.7906 0.7906 0.7906 0.7958 0.8010 0.8220 0.8220 0.8220 0.8220 0.8377 0.8377 0.8377 0.8429 0.8534 0.8534 0.8586 0.8743 0.8743 0.8743 0.8901 0.8901 0.8901 0.9162 0.9162 0.9162 0.9162 0.9162 0.9319 0.9319 0.9319 0.9372 0.9529 0.9529 0.9529 0.9686 0.9686 0.9686 0.9791 0.9791 0.9895 0.9895 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.2.8.4 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%10 ORDER BY b RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0714 0.1429 0.3571 0.3571 0.3571 0.4286 0.5000 0.5714 0.6429 0.7857 0.7857 1.0000 1.0000 1.0000 0.0952 0.0952 0.1905 0.1905 0.2857 0.2857 0.3810 0.3810 0.4762 0.4762 0.5238 0.6190 0.6190 0.7619 0.7619 0.7619 1.0000 1.0000 1.0000 1.0000 1.0000 0.1250 0.1250 0.3125 0.3125 0.3125 0.4375 0.4375 0.5000 0.5625 0.6250 0.7500 0.7500 0.9375 0.9375 0.9375 1.0000 0.0952 0.0952 0.1905 0.1905 0.2857 0.2857 0.4762 0.4762 0.4762 0.4762 0.5714 0.5714 0.6190 0.6667 0.8095 0.8095 0.8095 0.8571 1.0000 1.0000 1.0000 0.0526 0.1053 0.1579 0.3684 0.3684 0.3684 0.3684 0.4737 0.4737 0.5263 0.5789 0.7368 0.7368 0.7368 0.9474 0.9474 0.9474 0.9474 1.0000 0.0476 0.1905 0.1905 0.1905 0.2381 0.3333 0.3333 0.4286 0.4286 0.5714 0.5714 0.5714 0.7143 0.7143 0.7143 0.8571 0.8571 0.8571 1.0000 1.0000 1.0000 0.0476 0.1905 0.1905 0.1905 0.2857 0.2857 0.4762 0.4762 0.4762 0.4762 0.5714 0.5714 0.7143 0.7143 0.7143 0.7619 0.8095 0.8571 1.0000 1.0000 1.0000 0.1500 0.1500 0.1500 0.2000 0.3000 0.3000 0.4000 0.4000 0.6000 0.6000 0.6000 0.6000 0.6500 0.7000 0.8000 0.8000 0.9000 0.9000 1.0000 1.0000 0.1875 0.1875 0.1875 0.2500 0.3750 0.3750 0.6250 0.6250 0.6250 0.6250 0.6875 0.8125 0.8125 0.8750 1.0000 1.0000 0.1364 0.1364 0.1364 0.1818 0.3182 0.3182 0.3182 0.4545 0.4545 0.4545 0.5000 0.6818 0.6818 0.6818 0.6818 0.7273 0.7727 0.9091 0.9091 0.9091 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.2.8.5 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY b%10 RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.2.8.6 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%2 ORDER BY b%10 RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.2.8.1 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(100) OVER ( ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 88.0000 89.0000 89.0000 90.0000 90.0000 91.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.2.8.2 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(101) OVER ( PARTITION BY b%10 ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 22.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.2.8.3 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(102) OVER ( ORDER BY b,a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 88.0000 89.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.2.8.4 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(103) OVER ( PARTITION BY b%10 ORDER BY b,a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 22.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.2.8.5 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(104) OVER ( ORDER BY b%10,a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000 103.0000 104.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.2.8.6 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(105) OVER (PARTITION BY b%2,a ORDER BY b%10 RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.2.8.7 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(105) OVER ( RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 88.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000 103.0000 104.0000 105.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+do_execsql_test 1.2.9.1 {
+  SELECT last_value(a+b) OVER ( ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207}
+
+do_execsql_test 1.2.9.2 {
+  SELECT last_value(a+b) OVER ( PARTITION BY b%10 ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {223   223   223   223   223   223   223   223   223   223   223   223   223
+  223   210   210   210   210   210   210   210   210   210   210   210   210
+  210   210   210   210   210   210   210   210   210   280   280   280   280
+  280   280   280   280   280   280   280   280   280   280   280   280   279
+  279   279   279   279   279   279   279   279   279   279   279   279   279
+  279   279   279   279   279   279   279   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  274   274   274   274   274   274   274   274   274   274   274   274   274
+  274   274   274   274   274   274   274   274   212   212   212   212   212
+  212   212   212   212   212   212   212   212   212   212   212   212   212
+  212   212   212   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   232   232   232
+  232   232   232   232   232   232   232   232   232   232   232   232   232
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229}
+
+do_execsql_test 1.2.9.3 {
+  SELECT last_value(a+b) OVER ( ORDER BY b,a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276}
+
+do_execsql_test 1.2.9.4 {
+  SELECT last_value(a+b) OVER ( PARTITION BY b%10 ORDER BY b,a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {240   240   240   240   240   240   240   240   240   240   240   240   240
+  240   263   263   263   263   263   263   263   263   263   263   263   263
+  263   263   263   263   263   263   263   263   263   280   280   280   280
+  280   280   280   280   280   280   280   280   280   280   280   280   252
+  252   252   252   252   252   252   252   252   252   252   252   252   252
+  252   252   252   252   252   252   252   171   171   171   171   171   171
+  171   171   171   171   171   171   171   171   171   171   171   171   171
+  274   274   274   274   274   274   274   274   274   274   274   274   274
+  274   274   274   274   274   274   274   274   226   226   226   226   226
+  226   226   226   226   226   226   226   226   226   226   226   226   226
+  226   226   226   124   124   124   124   124   124   124   124   124   124
+  124   124   124   124   124   124   124   124   124   124   198   198   198
+  198   198   198   198   198   198   198   198   198   198   198   198   198
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276}
+
+do_execsql_test 1.2.9.5 {
+  SELECT last_value(a+b) OVER ( ORDER BY b%10,a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229}
+
+do_execsql_test 1.2.9.6 {
+  SELECT last_value(a+b) OVER (PARTITION BY b%2,a ORDER BY b%10 RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) FROM t2
+} {108   52   83   79   65   26   70   103   80   36   116   51   52   128
+  117   71   63   84   109   78   147   88   121   106   124   85   107   171
+  150   80   171   120   109   158   87   168   173   162   156   195   198
+  177   124   121   134   141   210   157   132   161   218   226   191   179
+  138   214   212   172   173   229   240   187   210   227   228   223   225
+  179   182   231   207   209   212   239   234   213   234   269   196   271
+  235   250   223   232   229   280   99   92   72   55   109   120   119
+  50   124   96   59   124   110   57   130   103   74   87   48   105   136
+  131   133   92   109   57   146   113   74   150   87   110   65   110
+  145   161   156   114   111   136   147   173   124   132   101   154   167
+  190   161   110   102   123   169   140   111   180   119   160   197   152
+  146   147   132   213   193   200   136   175   188   187   208   211   144
+  223   196   170   202   163   184   195   200   163   191   252   235   243
+  172   187   202   179   261   263   206   189   276   181   274   249   221
+  210   229   279   224   216   207}
+
+do_execsql_test 1.2.10.1 {
+  SELECT nth_value(b,b+1) OVER (ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) FROM t2
+} {96   41   5   16   85   42   43   89   1   22   39   51   73   93   22   80
+  1   73   91   94   35   74   73   37   77   54   54   74   81   91   90
+  62   65   63   36   1   95   23   95   56   16   97   86   40   59   1   84
+  98   56   78   65   96   16   90   81   40   59   56   40   54   2   85
+  96   11   87   41   38   65   32   47   80   74   35   47   98   96   13
+  24   72   73   29   12   46   36   53   35   81   27   56   5   11   81
+  93   63   81   91   68   53   99   89   13   12   97   91   29   7   7   78
+  35   84   53   84   58   61   91   99   15   61   98   16   5   75   56   2
+  37   3   96   62   95   43   63   35   78   16   67   43   16   16   90
+  72   98   85   56   90   46   29   29   4   74   74   2   76   41   46   77
+  24   27   97   46   89   1   85   1   74   78   61   85   51   59   35   30
+  56   25   47   28   73   6   73   74   93   43   3   56   47   85   61   61
+  93   9   97   62}
+
+do_execsql_test 1.2.10.2 {
+  SELECT nth_value(b,b+1) OVER (PARTITION BY b%10 ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   91   {}   11   {}   {}   {}   {}
+  11   {}   {}   {}   {}   {}   12   {}   {}   {}   32   {}   12   {}   32
+  {}   {}   12   {}   {}   {}   {}   {}   {}   {}   43   {}   {}   {}   {}
+  {}   33   {}   {}   {}   {}   {}   33   {}   43   {}   {}   {}   {}   {}
+  {}   4   {}   {}   {}   {}   {}   {}   {}   {}   34   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   55   {}   {}   {}   {}   {}   {}   15   55
+  {}   {}   {}   {}   {}   55   {}   {}   {}   86   {}   26   26   {}   {}
+  {}   {}   26   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   47   {}   {}   {}   {}   {}   47   {}   {}   {}   {}
+  {}   27   47   {}   {}   {}   98   {}   {}   {}   {}   {}   98   {}   98
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}
+  {}   {}   {}   {}   99   {}   9   9   {}   {}   {}}
+
+do_execsql_test 1.2.10.3 {
+  SELECT nth_value(b,b+1) OVER ( ORDER BY b,a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   2   2   2   2   3   3   4   5   5   5   6   6   6   7   7   7   7
+  7   7   8   8   8   8   8   8   9   9   9   9   9   9   9   11   11   12
+  12   12   12   12   12   13   13   14   14   15   15   15   15   15   15
+  16   16   16   16   16   16   17   17   17   17   19   19   19   19   20
+  20   21   21   21   21   21   21   22   22   22   22   22   23   23   23
+  24   25   25   26   26   27   27   27   27   27   27   29   29   29   30
+  30   30   31   31   31   31   31   32   33   33   33   33   33   33   33
+  33   33   33   33   34   34   34   34   34   34   34   35   35   36   36
+  36   37   37   37   37   37   37   38   38   38   38   38   38   39   39
+  39   39   39   40   41   41   41   41   41   42   43   43   43   43   43
+  44   44   44   44   46   46   46   47   47   47   47   47   47   47   47
+  47   47   47   49   49   49   50   51   51   51   52   52   52   53   53
+  54   54   55   55}
+
+do_execsql_test 1.2.10.4 {
+  SELECT nth_value(b,b+1) OVER ( PARTITION BY b%10 ORDER BY b,a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {80   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   1   1
+  61   61   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   12   12   72   72   72   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   13   13   63   63   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   34   84   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  35   85   85   85   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   36   76   76   76   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   37   37   37
+  87   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   58   58   58   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   39   39   39   89   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.2.10.5 {
+  SELECT nth_value(b,b+1) OVER ( ORDER BY b%10,a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {34   2   11   34   81   34   73   33   34   34   11   82   30   11   34
+  65   13   65   65   40   34   72   13   40   41   50   93   72   81   81
+  50   34   65   65   41   73   10   91   61   12   30   54   10   61   30
+  54   54   10   73   23   44   85   1   85   22   80   22   91   93   73
+  84   30   84   84   91   85   1   30   91   80   91   74   43   64   74
+  21   20   85   64   74   21   21   2   74   33   81   21   64   64   2   21
+  93   62   14   14   3   91   11   24   55   93   93   62   90   91   55   3
+  24   14   24   91   55   15   72   60   72   61   61   34   43   43   43
+  61   12   4   15   15   51   51   12   23   12   12   25   41   25   13
+  94   12   70   12   84   32   84   94   70   33   12   12   32   41   91
+  70   22   33   84   80   31   75   84   53   75   80   84   80   53   53
+  53   22   44   63   42   95   31   63   44   44   31   90   74   52   63
+  31   63   1   42   90   90   95   3   42}
+
+do_execsql_test 1.2.10.6 {
+  SELECT nth_value(b,b+1) OVER (PARTITION BY b%2,a ORDER BY b%10 RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.2.11.1 {
+  SELECT first_value(b) OVER (ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) FROM t2
+} {89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89}
+
+do_execsql_test 1.2.11.2 {
+  SELECT first_value(b) OVER (PARTITION BY b%10 ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) FROM t2
+} {90   90   90   90   90   90   90   90   90   90   90   90   90   90   81
+  81   81   81   81   81   81   81   81   81   81   81   81   81   81   81
+  81   81   81   81   81   62   62   62   62   62   62   62   62   62   62
+  62   62   62   62   62   62   93   93   93   93   93   93   93   93   93
+  93   93   93   93   93   93   93   93   93   93   93   93   54   54   54
+  54   54   54   54   54   54   54   54   54   54   54   54   54   54   54
+  54   65   65   65   65   65   65   65   65   65   65   65   65   65   65
+  65   65   65   65   65   65   65   96   96   96   96   96   96   96   96
+  96   96   96   96   96   96   96   96   96   96   96   96   96   97   97
+  97   97   97   97   97   97   97   97   97   97   97   97   97   97   97
+  97   97   97   38   38   38   38   38   38   38   38   38   38   38   38
+  38   38   38   38   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89}
+
+do_execsql_test 1.2.11.3 {
+  SELECT first_value(b) OVER ( ORDER BY b,a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1}
+
+do_execsql_test 1.2.11.4 {
+  SELECT first_value(b) OVER ( PARTITION BY b%10 ORDER BY b,a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {10   10   10   10   10   10   10   10   10   10   10   10   10   10   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5
+  5   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6
+  6   6   6   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7
+  7   7   7   7   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8
+  8   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9
+  9   9   9   9}
+
+do_execsql_test 1.2.11.5 {
+  SELECT first_value(b) OVER ( ORDER BY b%10,a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90}
+
+do_execsql_test 1.2.11.6 {
+  SELECT first_value(b) OVER (PARTITION BY b%2,a ORDER BY b%10 RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) FROM t2
+} {96   38   68   62   46   6   46   78   54   8   84   16   16   86   74   24
+  12   32   56   22   90   28   56   40   56   16   36   98   76   4   94
+  42   30   78   2   80   84   72   58   96   98   74   12   8   20   22   88
+  34   8   34   90   96   60   44   2   74   70   26   26   80   90   36   58
+  72   72   66   64   12   14   62   36   34   36   58   52   30   50   84
+  10   84   44   58   30   38   34   82   89   81   59   39   91   99   97
+  27   97   67   29   93   77   23   93   65   35   47   7   61   91   85
+  85   43   59   3   91   55   15   89   25   47   1   43   75   89   81   33
+  29   53   63   87   37   41   9   61   73   95   65   13   1   21   65   35
+  5   73   11   51   87   41   31   31   15   95   73   79   11   49   59
+  55   75   77   7   85   57   29   59   19   39   47   47   9   33   93   75
+  81   9   23   37   13   91   91   33   15   99   3   95   69   33   21   39
+  83   27   17   7}
+
+do_execsql_test 1.2.12.1 {
+  SELECT lead(b,b) OVER (ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) FROM t2
+} {96   9   11   89   32   53   91   30   51   56   54   73   22   59   75
+  74   78   8   16   65   15   8   31   87   90   12   32   96   74   76   37
+  85   90   15   35   2   60   36   75   9   51   47   63   51   90   26   42
+  26   8   76   80   90   37   87   56   79   5   87   8   2   39   73   64
+  36   90   72   78   36   73   51   33   20   41   2   26   37   33   8   14
+  33   81   55   1   9   12   39   64   87   72   34   82   21   34   99   62
+  74   41   69   22   75   27   58   8   79   77   26   26   55   {}   29
+  30   7   {}   66   55   2   34   64   {}   33   {}   44   84   {}   {}   95
+  85   19   {}   83   {}   91   {}   {}   9   50   91   33   34   {}   {}
+  84   {}   7   9   {}   {}   {}   44   {}   {}   {}   {}   91   84   {}   95
+  95   52   {}   {}   {}   {}   {}   21   {}   {}   {}   58   {}   {}   {}
+  {}   {}   {}   {}   83   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}}
+
+do_execsql_test 1.2.12.2 {
+  SELECT lead(b,b) OVER (PARTITION BY b%10 ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   81   {}   {}   {}   21   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   62   {}   {}   {}   12   {}   {}   {}   72
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   53   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   34   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   95   {}   {}   {}   {}   {}   {}   85   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   56   {}   36   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   57   {}   {}   {}   {}   {}   7   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   8   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.2.12.3 {
+  SELECT lead(b,b) OVER ( ORDER BY b,a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   3   5   6   7   8   8   9   9   10   11   12   12   13   13
+  14   15   16   16   17   19   20   21   22   23   24   25   26   27   27
+  28   29   30   31   32   33   33   33   34   34   35   36   36   36   37
+  38   39   39   40   41   42   43   43   44   46   47   47   47   49   50
+  52   53   54   55   56   56   57   58   58   58   59   59   59   60   61
+  62   62   64   65   65   67   69   70   72   72   73   74   74   75   75
+  75   77   78   80   81   81   83   84   84   85   85   85   87   88   89
+  89   89   90   90   91   91   91   93   93   94   95   95   96   97   97
+  98   99   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.2.12.4 {
+  SELECT lead(b,b) OVER ( PARTITION BY b%10 ORDER BY b,a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {80   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   1
+  11   81   81   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   12   12   72   82   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   13   23   73   73   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   34   84   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   35   85   85   95   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   36   86   96   96   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   37   47
+  47   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   58   58   68   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   39   49   59   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.2.12.5 {
+  SELECT lead(b,b) OVER ( ORDER BY b%10,a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {34   72   91   74   21   55   23   94   84   95   2   13   61   22   55
+  55   94   85   75   81   65   73   74   21   72   12   94   33   63   73
+  72   96   36   76   3   25   62   3   73   34   12   46   43   93   72   16
+  86   63   15   65   36   77   24   57   25   53   95   34   95   16   97
+  74   97   67   25   98   44   34   65   54   5   68   96   28   47   95
+  34   39   8   38   6   46   96   28   47   95   56   39   99   97   76   8
+  26   9   79   27   95   16   29   {}   58   58   77   85   56   {}   98
+  29   {}   19   96   {}   {}   78   56   98   36   97   {}   89   89   29
+  47   78   {}   {}   {}   38   68   58   {}   58   38   {}   98   {}   {}
+  {}   39   57   9   {}   79   {}   {}   7   {}   {}   {}   9   29   38   78
+  {}   {}   {}   8   39   {}   {}   {}   {}   59   {}   99   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.2.12.6 {
+  SELECT lead(b,b) OVER (PARTITION BY b%2,a ORDER BY b%10 RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.2.13.1 {
+  SELECT lag(b,b) OVER (ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   38   {}   {}   {}   {}
+  {}   {}   {}   6   {}   {}   {}   {}   {}   81   46   6   {}   {}   {}   {}
+  23   {}   {}   {}   {}   {}   27   {}   {}   {}   35   6   {}   12   {}
+  23   {}   {}   61   84   {}   93   39   47   {}   54   46   96   56   {}
+  16   {}   {}   {}   {}   89   {}   16   43   {}   85   56   29   99   53
+  {}   59   {}   {}   91   59   53   84   99   {}   93   63   47   {}   {}
+  98   33   67   35   75   1   23   13   55   27   75   98   35   73   63   2
+  21   27   13   24   86   23   84   31   20   94   61   65   75   23   36
+  94   55   90   41   77   96   56   29   40   12   89   63   11   5   73
+  79   1   16   28   31   73   5   39   53   63   41   11   40   2   13   33
+  9   29   90   47   72   9   73   30   44   33   74   93   29   74   42   34
+  63   41   34   96   47   77   1   36   74   72   14   36   26   77   9   72
+  64   8   91   31   52   30}
+
+do_execsql_test 1.2.13.2 {
+  SELECT lag(b,b) OVER (PARTITION BY b%10 ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   61   {}   81   {}   {}   {}   {}
+  1   {}   {}   {}   {}   {}   {}   {}   {}   {}   22   {}   {}   {}   12
+  {}   {}   62   {}   {}   {}   {}   {}   {}   {}   23   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   43   {}   23   {}   {}   {}   {}   {}
+  {}   54   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   75   {}
+  {}   {}   {}   {}   {}   55   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   47   {}   {}   {}   {}
+  {}   27   7   {}   {}   {}   {}   {}   {}   {}   {}   {}   68   {}   8   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   89   {}   {}
+  {}   {}   {}   {}   {}   29   9   {}   {}   {}}
+
+do_execsql_test 1.2.13.3 {
+  SELECT lag(b,b) OVER ( ORDER BY b,a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {{}   1   1   1   1   2   2   2   2   2   2   3   3   3   4   4   5   6   6
+  6   7   7   7   7   7   8   8   8   8   8   8   9   9   9   9   9   9   9
+  9   9   9   10   10   10   10   11   11   11   11   11   12   12   12   12
+  13   13   13   13   13   14   15   15   15   15   16   16   16   16   16
+  17   19   20   20   21   21   21   21   22   22   22   22   23   23   23
+  23   23   24   23   24   24   25   26   26   26   26   26   26   26   26
+  26   26   26   27   27   27   27   28   29   29   29   29   30   30   30
+  30   30   30   31   31   31   31   31   32   32   32   32   32   32   31
+  32   33   33   33   33   33   33   34   34   34   34   34   34   34   34
+  35   35   35   35   35   36   36   36   36   36   36   36   37   37   37
+  38   38   38   38   38   38   39   39   39   39   40   40   41   41   42
+  43   42   43   43   43   43   44   44   44   46   46   46   47   47   47
+  47   47}
+
+do_execsql_test 1.2.13.4 {
+  SELECT lag(b,b) OVER ( PARTITION BY b%10 ORDER BY b,a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  1   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.2.13.5 {
+  SELECT lag(b,b) OVER ( ORDER BY b%10,a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   61   80   81   {}   {}   {}   {}
+  1   {}   {}   {}   30   {}   21   90   61   {}   22   {}   11   41   12
+  {}   {}   62   {}   {}   {}   {}   31   {}   50   23   30   21   90   {}
+  {}   62   {}   {}   81   {}   22   43   62   23   32   {}   91   {}   90
+  93   54   {}   {}   90   72   12   22   90   81   83   23   80   20   72
+  43   51   33   80   90   2   34   54   1   20   62   12   13   75   44   30
+  93   91   1   21   55   61   61   13   85   3   65   65   91   73   33   93
+  55   84   62   31   11   65   35   85   33   55   15   12   75   22   3
+  73   65   36   85   43   95   43   13   47   44   65   65   96   36   27
+  7   46   34   94   47   36   73   34   35   73   68   24   8   75   85   75
+  66   34   95   36   84   77   46   34   84   47   89   65   36   16   38
+  76   58   57   29   9   44   56   17}
+
+do_execsql_test 1.2.13.6 {
+  SELECT lag(b,b) OVER (PARTITION BY b%2,a ORDER BY b%10 RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.2.14.1 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) FROM t2
+} {89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
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+
+do_execsql_test 1.2.14.2 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (PARTITION BY b%10 ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) FROM t2
+} {90.40.30.80.20.90.60.70.80.90.30.50.10.30
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+  90.40.30.80.20.90.60.70.80.90.30.50.10.30
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30
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+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39}
+
+do_execsql_test 1.2.14.3 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( ORDER BY b,a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
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+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99}
+
+do_execsql_test 1.2.14.4 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( PARTITION BY b%10 ORDER BY b,a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {10.20.30.30.30.40.50.60.70.80.80.90.90.90
+  10.20.30.30.30.40.50.60.70.80.80.90.90.90
+  10.20.30.30.30.40.50.60.70.80.80.90.90.90
+  10.20.30.30.30.40.50.60.70.80.80.90.90.90
+  10.20.30.30.30.40.50.60.70.80.80.90.90.90
+  10.20.30.30.30.40.50.60.70.80.80.90.90.90
+  10.20.30.30.30.40.50.60.70.80.80.90.90.90
+  10.20.30.30.30.40.50.60.70.80.80.90.90.90
+  10.20.30.30.30.40.50.60.70.80.80.90.90.90
+  10.20.30.30.30.40.50.60.70.80.80.90.90.90
+  10.20.30.30.30.40.50.60.70.80.80.90.90.90
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+  10.20.30.30.30.40.50.60.70.80.80.90.90.90
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+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99}
+
+do_execsql_test 1.2.14.5 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( ORDER BY b%10,a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
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+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39}
+
+do_execsql_test 1.2.14.6 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (PARTITION BY b%2,a ORDER BY b%10 RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) FROM t2
+} {96   38   68   62   46   6   46   78   54   8   84   16   16   86   74   24
+  12   32   56   22   90   28   56   40   56   16   36   98   76   4   94
+  42   30   78   2   80   84   72   58   96   98   74   12   8   20   22   88
+  34   8   34   90   96   60   44   2   74   70   26   26   80   90   36   58
+  72   72   66   64   12   14   62   36   34   36   58   52   30   50   84
+  10   84   44   58   30   38   34   82   89   81   59   39   91   99   97
+  27   97   67   29   93   77   23   93   65   35   47   7   61   91   85
+  85   43   59   3   91   55   15   89   25   47   1   43   75   89   81   33
+  29   53   63   87   37   41   9   61   73   95   65   13   1   21   65   35
+  5   73   11   51   87   41   31   31   15   95   73   79   11   49   59
+  55   75   77   7   85   57   29   59   19   39   47   47   9   33   93   75
+  81   9   23   37   13   91   91   33   15   99   3   95   69   33   21   39
+  83   27   17   7}
+
+do_execsql_test 1.2.14.7 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (win1 ORDER BY b%10 RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) 
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a)
+    ORDER BY 1
+} {1   1   10   11   11   12   12   12   13   13   14   15   15   15   16   16
+  16   17   19   2   2   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   3   3   30   30   30   31   31   32   33   33
+  33   33   34   34   34   34   35   35   36   36   36   36   37   37   38
+  38   39   39   39   4   40   41   41   42   43   43   44   44   46   46
+  47   47   47   47   49   5   50   51   52   53   54   55   55   56   56
+  56   57   58   58   58   58   59   59   59   59   6   60   61   61   62
+  62   63   64   65   65   65   66   67   68   69   7   7   7   70   72   72
+  72   73   73   73   74   74   74   75   75   75   76   77   77   78   78
+  79   8   8   8   80   80   81   81   81   82   83   84   84   84   84   85
+  85   85   86   87   87   88   89   89   89   9   9   9   90   90   90   91
+  91   91   91   91   93   93   93   94   95   95   95   96   96   96   97
+  97   98   98   99   99}
+
+do_execsql_test 1.2.14.8 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (win1 RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) 
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a ORDER BY b%10)
+    ORDER BY 1
+} {1   1   10   11   11   12   12   12   13   13   14   15   15   15   16   16
+  16   17   19   2   2   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   3   3   30   30   30   31   31   32   33   33
+  33   33   34   34   34   34   35   35   36   36   36   36   37   37   38
+  38   39   39   39   4   40   41   41   42   43   43   44   44   46   46
+  47   47   47   47   49   5   50   51   52   53   54   55   55   56   56
+  56   57   58   58   58   58   59   59   59   59   6   60   61   61   62
+  62   63   64   65   65   65   66   67   68   69   7   7   7   70   72   72
+  72   73   73   73   74   74   74   75   75   75   76   77   77   78   78
+  79   8   8   8   80   80   81   81   81   82   83   84   84   84   84   85
+  85   85   86   87   87   88   89   89   89   9   9   9   90   90   90   91
+  91   91   91   91   93   93   93   94   95   95   95   96   96   96   97
+  97   98   98   99   99}
+
+do_execsql_test 1.2.14.9 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER win2
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a ORDER BY b%10),
+           win2 AS (win1 RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING)
+    ORDER BY 1
+} {1   1   10   11   11   12   12   12   13   13   14   15   15   15   16   16
+  16   17   19   2   2   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   3   3   30   30   30   31   31   32   33   33
+  33   33   34   34   34   34   35   35   36   36   36   36   37   37   38
+  38   39   39   39   4   40   41   41   42   43   43   44   44   46   46
+  47   47   47   47   49   5   50   51   52   53   54   55   55   56   56
+  56   57   58   58   58   58   59   59   59   59   6   60   61   61   62
+  62   63   64   65   65   65   66   67   68   69   7   7   7   70   72   72
+  72   73   73   73   74   74   74   75   75   75   76   77   77   78   78
+  79   8   8   8   80   80   81   81   81   82   83   84   84   84   84   85
+  85   85   86   87   87   88   89   89   89   9   9   9   90   90   90   91
+  91   91   91   91   93   93   93   94   95   95   95   96   96   96   97
+  97   98   98   99   99}
+
+do_execsql_test 1.2.15.1 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE a%2=0) OVER win FROM t2
+    WINDOW win AS (ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING)
+} {191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
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+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7}
+
+do_execsql_test 1.2.15.2 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE 0=1) OVER win FROM t2
+    WINDOW win AS (ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING)
+} {191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}}
+
+do_execsql_test 1.2.15.3 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE 1=0) OVER win FROM t2
+    WINDOW win AS (PARTITION BY (a%10) ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING)
+} {20 {}   20 {}   20 {}   20 {}   20 {}   20 {}   20 {}   20 {}   20 {}
+  20 {}   20 {}   20 {}   20 {}   20 {}   20 {}   20 {}   20 {}   20 {}
+  20 {}   20 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}}
+
+do_execsql_test 1.2.15.4 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE a%2=0) OVER win FROM t2
+    WINDOW win AS (PARTITION BY (a%10) ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING)
+} {20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}}
+
+do_execsql_test 1.3.2.1 {
+  SELECT max(b) OVER ( ORDER BY a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {89   81   96   59   38   68   39   62   91   46   6   99   97   27   46
+  78   54   97   8   67   29   93   84   77   23   16   16   93   65   35
+  47   7   86   74   61   91   85   24   85   43   59   12   32   56   3   91
+  22   90   55   15   28   89   25   47   1   56   40   43   56   16   75
+  36   89   98   76   81   4   94   42   30   78   33   29   53   63   2   87
+  37   80   84   72   41   9   61   73   95   65   13   58   96   98   1   21
+  74   65   35   5   73   11   51   87   41   12   8   20   31   31   15   95
+  22   73   79   88   34   8   11   49   34   90   59   96   60   55   75
+  77   44   2   7   85   57   74   29   70   59   19   39   26   26   47   80
+  90   36   58   47   9   72   72   66   33   93   75   64   81   9   23   37
+  13   12   14   62   91   36   91   33   15   34   36   99   3   95   69
+  58   52   30   50   84   10   84   33   21   39   44   58   30   38   34
+  83   27   82   17   7}
+
+do_execsql_test 1.3.2.2 {
+  SELECT min(b) OVER ( ORDER BY a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {89   81   96   59   38   68   39   62   91   46   6   99   97   27   46
+  78   54   97   8   67   29   93   84   77   23   16   16   93   65   35
+  47   7   86   74   61   91   85   24   85   43   59   12   32   56   3   91
+  22   90   55   15   28   89   25   47   1   56   40   43   56   16   75
+  36   89   98   76   81   4   94   42   30   78   33   29   53   63   2   87
+  37   80   84   72   41   9   61   73   95   65   13   58   96   98   1   21
+  74   65   35   5   73   11   51   87   41   12   8   20   31   31   15   95
+  22   73   79   88   34   8   11   49   34   90   59   96   60   55   75
+  77   44   2   7   85   57   74   29   70   59   19   39   26   26   47   80
+  90   36   58   47   9   72   72   66   33   93   75   64   81   9   23   37
+  13   12   14   62   91   36   91   33   15   34   36   99   3   95   69
+  58   52   30   50   84   10   84   33   21   39   44   58   30   38   34
+  83   27   82   17   7}
+
+do_execsql_test 1.3.3.1 {
+  SELECT row_number() OVER ( ORDER BY a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.3.3.2 {
+  SELECT row_number() OVER ( PARTITION BY b%10 ORDER BY a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.3.3.3 {
+  SELECT row_number() OVER ( RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.3.4.1 {
+  SELECT dense_rank() OVER ( ORDER BY a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.3.4.2 {
+  SELECT dense_rank() OVER ( PARTITION BY b%10 ORDER BY a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.3.4.3 {
+  SELECT dense_rank() OVER ( ORDER BY b RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {1   1   2   2   3   3   4   5   6   7   7   7   8   8   8   9   9   9   10
+  11   11   12   12   12   13   13   14   15   15   15   16   16   16   17
+  18   19   20   20   21   21   22   22   23   24   25   25   26   26   27
+  28   28   28   29   29   29   30   30   31   32   32   32   32   33   33
+  33   33   34   34   35   35   35   35   36   36   37   37   38   38   38
+  39   40   40   41   42   42   43   43   44   44   45   45   45   45   46
+  47   48   49   50   51   52   52   53   53   53   54   55   55   55   55
+  56   56   56   56   57   58   58   59   59   60   61   62   62   62   63
+  64   65   66   67   68   68   68   69   69   69   70   70   70   71   71
+  71   72   73   73   74   74   75   76   76   77   77   77   78   79   80
+  80   80   80   81   81   81   82   83   83   84   85   85   85   86   86
+  86   87   87   87   87   87   88   88   88   89   90   90   90   91   91
+  91   92   92   93   93   94   94}
+
+do_execsql_test 1.3.4.4 {
+  SELECT dense_rank() OVER ( PARTITION BY b%10 ORDER BY b RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {1   2   3   3   3   4   5   6   7   8   8   9   9   9   1   1   2   2   3
+  3   4   4   5   5   6   7   7   8   8   8   9   9   9   9   9   1   1   2
+  2   2   3   3   4   5   6   7   7   8   8   8   9   1   1   2   2   3   3
+  4   4   4   4   5   5   6   7   8   8   8   9   10   10   10   1   2   3
+  4   4   4   4   5   5   6   7   8   8   8   9   9   9   9   10   1   2   2
+  2   3   4   4   5   5   6   6   6   7   7   7   8   8   8   9   9   9   1
+  2   2   2   3   3   4   4   4   4   5   5   6   6   6   7   8   9   10   10
+  10   1   1   1   2   3   3   4   4   5   5   5   5   6   7   8   8   9   9
+  10   10   1   1   1   2   3   3   4   4   4   4   5   6   6   7   8   8   1
+  1   1   2   3   3   3   4   4   4   5   6   6   6   6   7   8   9   9   9
+  10   10}
+
+do_execsql_test 1.3.4.5 {
+  SELECT dense_rank() OVER ( ORDER BY b%10 RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   4   4   4   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5   5   5   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   6   6   6   6
+  6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   7   7
+  7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7
+  8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8
+  8   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   10   10
+  10   10   10   10   10   10   10   10   10   10   10   10   10   10   10
+  10   10   10   10   10}
+
+do_execsql_test 1.3.4.6 {
+  SELECT dense_rank() OVER ( PARTITION BY b%2 ORDER BY b%10 RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   3   3   3   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   4   4   4   4   4   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   5   5   5   5   5   5
+  5   5   5   5   5   5   5   5   5   5   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5
+  5}
+
+do_execsql_test 1.3.5.1 {
+  SELECT rank() OVER ( ORDER BY a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.3.5.2 {
+  SELECT rank() OVER ( PARTITION BY b%10 ORDER BY a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.3.5.3 {
+  SELECT rank() OVER ( ORDER BY b RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {1   1   3   3   5   5   7   8   9   10   10   10   13   13   13   16   16
+  16   19   20   20   22   22   22   25   25   27   28   28   28   31   31
+  31   34   35   36   37   37   39   39   41   41   43   44   45   45   47
+  47   49   50   50   50   53   53   53   56   56   58   59   59   59   59
+  63   63   63   63   67   67   69   69   69   69   73   73   75   75   77
+  77   77   80   81   81   83   84   84   86   86   88   88   90   90   90
+  90   94   95   96   97   98   99   100   100   102   102   102   105   106
+  106   106   106   110   110   110   110   114   115   115   117   117   119
+  120   121   121   121   124   125   126   127   128   129   129   129   132
+  132   132   135   135   135   138   138   138   141   142   142   144   144
+  146   147   147   149   149   149   152   153   154   154   154   154   158
+  158   158   161   162   162   164   165   165   165   168   168   168   171
+  171   171   171   171   176   176   176   179   180   180   180   183   183
+  183   186   186   188   188   190   190}
+
+do_execsql_test 1.3.5.4 {
+  SELECT rank() OVER ( PARTITION BY b%10 ORDER BY b RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {1   2   3   3   3   6   7   8   9   10   10   12   12   12   1   1   3   3
+  5   5   7   7   9   9   11   12   12   14   14   14   17   17   17   17
+  17   1   1   3   3   3   6   6   8   9   10   11   11   13   13   13   16
+  1   1   3   3   5   5   7   7   7   7   11   11   13   14   15   15   15
+  18   19   19   19   1   2   3   4   4   4   4   8   8   10   11   12   12
+  12   15   15   15   15   19   1   2   2   2   5   6   6   8   8   10   10
+  10   13   13   13   16   16   16   19   19   19   1   2   2   2   5   5   7
+  7   7   7   11   11   13   13   13   16   17   18   19   19   19   1   1
+  1   4   5   5   7   7   9   9   9   9   13   14   15   15   17   17   19
+  19   1   1   1   4   5   5   7   7   7   7   11   12   12   14   15   15
+  1   1   1   4   5   5   5   8   8   8   11   12   12   12   12   16   17
+  18   18   18   21   21}
+
+do_execsql_test 1.3.5.5 {
+  SELECT rank() OVER ( ORDER BY b%10 RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   15   15   15   15
+  15   15   15   15   15   15   15   15   15   15   15   15   15   15   15
+  15   15   36   36   36   36   36   36   36   36   36   36   36   36   36
+  36   36   36   52   52   52   52   52   52   52   52   52   52   52   52
+  52   52   52   52   52   52   52   52   52   73   73   73   73   73   73
+  73   73   73   73   73   73   73   73   73   73   73   73   73   92   92
+  92   92   92   92   92   92   92   92   92   92   92   92   92   92   92
+  92   92   92   92   113   113   113   113   113   113   113   113   113
+  113   113   113   113   113   113   113   113   113   113   113   113   134
+  134   134   134   134   134   134   134   134   134   134   134   134   134
+  134   134   134   134   134   134   154   154   154   154   154   154   154
+  154   154   154   154   154   154   154   154   154   170   170   170   170
+  170   170   170   170   170   170   170   170   170   170   170   170   170
+  170   170   170   170   170}
+
+do_execsql_test 1.3.5.6 {
+  SELECT rank() OVER ( PARTITION BY b%2 ORDER BY b%10 RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   15   15   15   15
+  15   15   15   15   15   15   15   15   15   15   15   15   31   31   31
+  31   31   31   31   31   31   31   31   31   31   31   31   31   31   31
+  31   50   50   50   50   50   50   50   50   50   50   50   50   50   50
+  50   50   50   50   50   50   50   71   71   71   71   71   71   71   71
+  71   71   71   71   71   71   71   71   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   22   22   22   22   22   22
+  22   22   22   22   22   22   22   22   22   22   22   22   22   22   22
+  43   43   43   43   43   43   43   43   43   43   43   43   43   43   43
+  43   43   43   43   43   43   64   64   64   64   64   64   64   64   64
+  64   64   64   64   64   64   64   64   64   64   64   84   84   84   84
+  84   84   84   84   84   84   84   84   84   84   84   84   84   84   84
+  84   84   84}
+
+do_execsql_test 1.3.6.1 {
+  SELECT 
+      row_number() OVER ( PARTITION BY b%2 ORDER BY b%10 RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ),
+      rank() OVER ( PARTITION BY b%2 ORDER BY b%10 RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ),
+      dense_rank() OVER ( PARTITION BY b%2 ORDER BY b%10 RANGE BETWEEN CURRENT ROW         AND CURRENT ROW )
+    FROM t2
+} {1 1 1   2 1 1   3 1 1   4 1 1   5 1 1   6 1 1   7 1 1   8 1 1   9 1 1
+  10 1 1   11 1 1   12 1 1   13 1 1   14 1 1   15 15 2   16 15 2   17 15 2
+  18 15 2   19 15 2   20 15 2   21 15 2   22 15 2   23 15 2   24 15 2
+  25 15 2   26 15 2   27 15 2   28 15 2   29 15 2   30 15 2   31 31 3
+  32 31 3   33 31 3   34 31 3   35 31 3   36 31 3   37 31 3   38 31 3
+  39 31 3   40 31 3   41 31 3   42 31 3   43 31 3   44 31 3   45 31 3
+  46 31 3   47 31 3   48 31 3   49 31 3   50 50 4   51 50 4   52 50 4
+  53 50 4   54 50 4   55 50 4   56 50 4   57 50 4   58 50 4   59 50 4
+  60 50 4   61 50 4   62 50 4   63 50 4   64 50 4   65 50 4   66 50 4
+  67 50 4   68 50 4   69 50 4   70 50 4   71 71 5   72 71 5   73 71 5
+  74 71 5   75 71 5   76 71 5   77 71 5   78 71 5   79 71 5   80 71 5
+  81 71 5   82 71 5   83 71 5   84 71 5   85 71 5   86 71 5   1 1 1   2 1 1
+  3 1 1   4 1 1   5 1 1   6 1 1   7 1 1   8 1 1   9 1 1   10 1 1   11 1 1
+  12 1 1   13 1 1   14 1 1   15 1 1   16 1 1   17 1 1   18 1 1   19 1 1
+  20 1 1   21 1 1   22 22 2   23 22 2   24 22 2   25 22 2   26 22 2   27 22 2
+  28 22 2   29 22 2   30 22 2   31 22 2   32 22 2   33 22 2   34 22 2
+  35 22 2   36 22 2   37 22 2   38 22 2   39 22 2   40 22 2   41 22 2
+  42 22 2   43 43 3   44 43 3   45 43 3   46 43 3   47 43 3   48 43 3
+  49 43 3   50 43 3   51 43 3   52 43 3   53 43 3   54 43 3   55 43 3
+  56 43 3   57 43 3   58 43 3   59 43 3   60 43 3   61 43 3   62 43 3
+  63 43 3   64 64 4   65 64 4   66 64 4   67 64 4   68 64 4   69 64 4
+  70 64 4   71 64 4   72 64 4   73 64 4   74 64 4   75 64 4   76 64 4
+  77 64 4   78 64 4   79 64 4   80 64 4   81 64 4   82 64 4   83 64 4
+  84 84 5   85 84 5   86 84 5   87 84 5   88 84 5   89 84 5   90 84 5
+  91 84 5   92 84 5   93 84 5   94 84 5   95 84 5   96 84 5   97 84 5
+  98 84 5   99 84 5   100 84 5   101 84 5   102 84 5   103 84 5   104 84 5
+  105 84 5}
+
+
+do_test 1.3.7.1 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0053 0.0105 0.0158 0.0211 0.0263 0.0316 0.0368 0.0421 0.0474 0.0526 0.0579 0.0632 0.0684 0.0737 0.0789 0.0842 0.0895 0.0947 0.1000 0.1053 0.1105 0.1158 0.1211 0.1263 0.1316 0.1368 0.1421 0.1474 0.1526 0.1579 0.1632 0.1684 0.1737 0.1789 0.1842 0.1895 0.1947 0.2000 0.2053 0.2105 0.2158 0.2211 0.2263 0.2316 0.2368 0.2421 0.2474 0.2526 0.2579 0.2632 0.2684 0.2737 0.2789 0.2842 0.2895 0.2947 0.3000 0.3053 0.3105 0.3158 0.3211 0.3263 0.3316 0.3368 0.3421 0.3474 0.3526 0.3579 0.3632 0.3684 0.3737 0.3789 0.3842 0.3895 0.3947 0.4000 0.4053 0.4105 0.4158 0.4211 0.4263 0.4316 0.4368 0.4421 0.4474 0.4526 0.4579 0.4632 0.4684 0.4737 0.4789 0.4842 0.4895 0.4947 0.5000 0.5053 0.5105 0.5158 0.5211 0.5263 0.5316 0.5368 0.5421 0.5474 0.5526 0.5579 0.5632 0.5684 0.5737 0.5789 0.5842 0.5895 0.5947 0.6000 0.6053 0.6105 0.6158 0.6211 0.6263 0.6316 0.6368 0.6421 0.6474 0.6526 0.6579 0.6632 0.6684 0.6737 0.6789 0.6842 0.6895 0.6947 0.7000 0.7053 0.7105 0.7158 0.7211 0.7263 0.7316 0.7368 0.7421 0.7474 0.7526 0.7579 0.7632 0.7684 0.7737 0.7789 0.7842 0.7895 0.7947 0.8000 0.8053 0.8105 0.8158 0.8211 0.8263 0.8316 0.8368 0.8421 0.8474 0.8526 0.8579 0.8632 0.8684 0.8737 0.8789 0.8842 0.8895 0.8947 0.9000 0.9053 0.9105 0.9158 0.9211 0.9263 0.9316 0.9368 0.9421 0.9474 0.9526 0.9579 0.9632 0.9684 0.9737 0.9789 0.9842 0.9895 0.9947 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.3.7.2 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( PARTITION BY b%10 ORDER BY a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0769 0.1538 0.2308 0.3077 0.3846 0.4615 0.5385 0.6154 0.6923 0.7692 0.8462 0.9231 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0667 0.1333 0.2000 0.2667 0.3333 0.4000 0.4667 0.5333 0.6000 0.6667 0.7333 0.8000 0.8667 0.9333 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0556 0.1111 0.1667 0.2222 0.2778 0.3333 0.3889 0.4444 0.5000 0.5556 0.6111 0.6667 0.7222 0.7778 0.8333 0.8889 0.9444 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0526 0.1053 0.1579 0.2105 0.2632 0.3158 0.3684 0.4211 0.4737 0.5263 0.5789 0.6316 0.6842 0.7368 0.7895 0.8421 0.8947 0.9474 1.0000 0.0000 0.0667 0.1333 0.2000 0.2667 0.3333 0.4000 0.4667 0.5333 0.6000 0.6667 0.7333 0.8000 0.8667 0.9333 1.0000 0.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.3.7.3 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY b RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0105 0.0105 0.0211 0.0211 0.0316 0.0368 0.0421 0.0474 0.0474 0.0474 0.0632 0.0632 0.0632 0.0789 0.0789 0.0789 0.0947 0.1000 0.1000 0.1105 0.1105 0.1105 0.1263 0.1263 0.1368 0.1421 0.1421 0.1421 0.1579 0.1579 0.1579 0.1737 0.1789 0.1842 0.1895 0.1895 0.2000 0.2000 0.2105 0.2105 0.2211 0.2263 0.2316 0.2316 0.2421 0.2421 0.2526 0.2579 0.2579 0.2579 0.2737 0.2737 0.2737 0.2895 0.2895 0.3000 0.3053 0.3053 0.3053 0.3053 0.3263 0.3263 0.3263 0.3263 0.3474 0.3474 0.3579 0.3579 0.3579 0.3579 0.3789 0.3789 0.3895 0.3895 0.4000 0.4000 0.4000 0.4158 0.4211 0.4211 0.4316 0.4368 0.4368 0.4474 0.4474 0.4579 0.4579 0.4684 0.4684 0.4684 0.4684 0.4895 0.4947 0.5000 0.5053 0.5105 0.5158 0.5211 0.5211 0.5316 0.5316 0.5316 0.5474 0.5526 0.5526 0.5526 0.5526 0.5737 0.5737 0.5737 0.5737 0.5947 0.6000 0.6000 0.6105 0.6105 0.6211 0.6263 0.6316 0.6316 0.6316 0.6474 0.6526 0.6579 0.6632 0.6684 0.6737 0.6737 0.6737 0.6895 0.6895 0.6895 0.7053 0.7053 0.7053 0.7211 0.7211 0.7211 0.7368 0.7421 0.7421 0.7526 0.7526 0.7632 0.7684 0.7684 0.7789 0.7789 0.7789 0.7947 0.8000 0.8053 0.8053 0.8053 0.8053 0.8263 0.8263 0.8263 0.8421 0.8474 0.8474 0.8579 0.8632 0.8632 0.8632 0.8789 0.8789 0.8789 0.8947 0.8947 0.8947 0.8947 0.8947 0.9211 0.9211 0.9211 0.9368 0.9421 0.9421 0.9421 0.9579 0.9579 0.9579 0.9737 0.9737 0.9842 0.9842 0.9947 0.9947}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.3.7.4 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( PARTITION BY b%10 ORDER BY b RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0769 0.1538 0.1538 0.1538 0.3846 0.4615 0.5385 0.6154 0.6923 0.6923 0.8462 0.8462 0.8462 0.0000 0.0000 0.1000 0.1000 0.2000 0.2000 0.3000 0.3000 0.4000 0.4000 0.5000 0.5500 0.5500 0.6500 0.6500 0.6500 0.8000 0.8000 0.8000 0.8000 0.8000 0.0000 0.0000 0.1333 0.1333 0.1333 0.3333 0.3333 0.4667 0.5333 0.6000 0.6667 0.6667 0.8000 0.8000 0.8000 1.0000 0.0000 0.0000 0.1000 0.1000 0.2000 0.2000 0.3000 0.3000 0.3000 0.3000 0.5000 0.5000 0.6000 0.6500 0.7000 0.7000 0.7000 0.8500 0.9000 0.9000 0.9000 0.0000 0.0556 0.1111 0.1667 0.1667 0.1667 0.1667 0.3889 0.3889 0.5000 0.5556 0.6111 0.6111 0.6111 0.7778 0.7778 0.7778 0.7778 1.0000 0.0000 0.0500 0.0500 0.0500 0.2000 0.2500 0.2500 0.3500 0.3500 0.4500 0.4500 0.4500 0.6000 0.6000 0.6000 0.7500 0.7500 0.7500 0.9000 0.9000 0.9000 0.0000 0.0500 0.0500 0.0500 0.2000 0.2000 0.3000 0.3000 0.3000 0.3000 0.5000 0.5000 0.6000 0.6000 0.6000 0.7500 0.8000 0.8500 0.9000 0.9000 0.9000 0.0000 0.0000 0.0000 0.1579 0.2105 0.2105 0.3158 0.3158 0.4211 0.4211 0.4211 0.4211 0.6316 0.6842 0.7368 0.7368 0.8421 0.8421 0.9474 0.9474 0.0000 0.0000 0.0000 0.2000 0.2667 0.2667 0.4000 0.4000 0.4000 0.4000 0.6667 0.7333 0.7333 0.8667 0.9333 0.9333 0.0000 0.0000 0.0000 0.1429 0.1905 0.1905 0.1905 0.3333 0.3333 0.3333 0.4762 0.5238 0.5238 0.5238 0.5238 0.7143 0.7619 0.8095 0.8095 0.8095 0.9524 0.9524}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.3.7.5 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY b%10 RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.3.7.6 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER (PARTITION BY b%2 ORDER BY b%10 RANGE BETWEEN CURRENT ROW         AND CURRENT ROW) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.3.8.1 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0052 0.0105 0.0157 0.0209 0.0262 0.0314 0.0366 0.0419 0.0471 0.0524 0.0576 0.0628 0.0681 0.0733 0.0785 0.0838 0.0890 0.0942 0.0995 0.1047 0.1099 0.1152 0.1204 0.1257 0.1309 0.1361 0.1414 0.1466 0.1518 0.1571 0.1623 0.1675 0.1728 0.1780 0.1832 0.1885 0.1937 0.1990 0.2042 0.2094 0.2147 0.2199 0.2251 0.2304 0.2356 0.2408 0.2461 0.2513 0.2565 0.2618 0.2670 0.2723 0.2775 0.2827 0.2880 0.2932 0.2984 0.3037 0.3089 0.3141 0.3194 0.3246 0.3298 0.3351 0.3403 0.3455 0.3508 0.3560 0.3613 0.3665 0.3717 0.3770 0.3822 0.3874 0.3927 0.3979 0.4031 0.4084 0.4136 0.4188 0.4241 0.4293 0.4346 0.4398 0.4450 0.4503 0.4555 0.4607 0.4660 0.4712 0.4764 0.4817 0.4869 0.4921 0.4974 0.5026 0.5079 0.5131 0.5183 0.5236 0.5288 0.5340 0.5393 0.5445 0.5497 0.5550 0.5602 0.5654 0.5707 0.5759 0.5812 0.5864 0.5916 0.5969 0.6021 0.6073 0.6126 0.6178 0.6230 0.6283 0.6335 0.6387 0.6440 0.6492 0.6545 0.6597 0.6649 0.6702 0.6754 0.6806 0.6859 0.6911 0.6963 0.7016 0.7068 0.7120 0.7173 0.7225 0.7277 0.7330 0.7382 0.7435 0.7487 0.7539 0.7592 0.7644 0.7696 0.7749 0.7801 0.7853 0.7906 0.7958 0.8010 0.8063 0.8115 0.8168 0.8220 0.8272 0.8325 0.8377 0.8429 0.8482 0.8534 0.8586 0.8639 0.8691 0.8743 0.8796 0.8848 0.8901 0.8953 0.9005 0.9058 0.9110 0.9162 0.9215 0.9267 0.9319 0.9372 0.9424 0.9476 0.9529 0.9581 0.9634 0.9686 0.9738 0.9791 0.9843 0.9895 0.9948 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.3.8.2 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%10 ORDER BY a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0714 0.1429 0.2143 0.2857 0.3571 0.4286 0.5000 0.5714 0.6429 0.7143 0.7857 0.8571 0.9286 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0625 0.1250 0.1875 0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250 0.6875 0.7500 0.8125 0.8750 0.9375 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0526 0.1053 0.1579 0.2105 0.2632 0.3158 0.3684 0.4211 0.4737 0.5263 0.5789 0.6316 0.6842 0.7368 0.7895 0.8421 0.8947 0.9474 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0625 0.1250 0.1875 0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250 0.6875 0.7500 0.8125 0.8750 0.9375 1.0000 0.0455 0.0909 0.1364 0.1818 0.2273 0.2727 0.3182 0.3636 0.4091 0.4545 0.5000 0.5455 0.5909 0.6364 0.6818 0.7273 0.7727 0.8182 0.8636 0.9091 0.9545 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.3.8.3 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY b RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0105 0.0105 0.0209 0.0209 0.0314 0.0314 0.0366 0.0419 0.0471 0.0628 0.0628 0.0628 0.0785 0.0785 0.0785 0.0942 0.0942 0.0942 0.0995 0.1099 0.1099 0.1257 0.1257 0.1257 0.1361 0.1361 0.1414 0.1571 0.1571 0.1571 0.1728 0.1728 0.1728 0.1780 0.1832 0.1885 0.1990 0.1990 0.2094 0.2094 0.2199 0.2199 0.2251 0.2304 0.2408 0.2408 0.2513 0.2513 0.2565 0.2723 0.2723 0.2723 0.2880 0.2880 0.2880 0.2984 0.2984 0.3037 0.3246 0.3246 0.3246 0.3246 0.3455 0.3455 0.3455 0.3455 0.3560 0.3560 0.3770 0.3770 0.3770 0.3770 0.3874 0.3874 0.3979 0.3979 0.4136 0.4136 0.4136 0.4188 0.4293 0.4293 0.4346 0.4450 0.4450 0.4555 0.4555 0.4660 0.4660 0.4869 0.4869 0.4869 0.4869 0.4921 0.4974 0.5026 0.5079 0.5131 0.5183 0.5288 0.5288 0.5445 0.5445 0.5445 0.5497 0.5707 0.5707 0.5707 0.5707 0.5916 0.5916 0.5916 0.5916 0.5969 0.6073 0.6073 0.6178 0.6178 0.6230 0.6283 0.6440 0.6440 0.6440 0.6492 0.6545 0.6597 0.6649 0.6702 0.6859 0.6859 0.6859 0.7016 0.7016 0.7016 0.7173 0.7173 0.7173 0.7330 0.7330 0.7330 0.7382 0.7487 0.7487 0.7592 0.7592 0.7644 0.7749 0.7749 0.7906 0.7906 0.7906 0.7958 0.8010 0.8220 0.8220 0.8220 0.8220 0.8377 0.8377 0.8377 0.8429 0.8534 0.8534 0.8586 0.8743 0.8743 0.8743 0.8901 0.8901 0.8901 0.9162 0.9162 0.9162 0.9162 0.9162 0.9319 0.9319 0.9319 0.9372 0.9529 0.9529 0.9529 0.9686 0.9686 0.9686 0.9791 0.9791 0.9895 0.9895 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.3.8.4 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%10 ORDER BY b RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0714 0.1429 0.3571 0.3571 0.3571 0.4286 0.5000 0.5714 0.6429 0.7857 0.7857 1.0000 1.0000 1.0000 0.0952 0.0952 0.1905 0.1905 0.2857 0.2857 0.3810 0.3810 0.4762 0.4762 0.5238 0.6190 0.6190 0.7619 0.7619 0.7619 1.0000 1.0000 1.0000 1.0000 1.0000 0.1250 0.1250 0.3125 0.3125 0.3125 0.4375 0.4375 0.5000 0.5625 0.6250 0.7500 0.7500 0.9375 0.9375 0.9375 1.0000 0.0952 0.0952 0.1905 0.1905 0.2857 0.2857 0.4762 0.4762 0.4762 0.4762 0.5714 0.5714 0.6190 0.6667 0.8095 0.8095 0.8095 0.8571 1.0000 1.0000 1.0000 0.0526 0.1053 0.1579 0.3684 0.3684 0.3684 0.3684 0.4737 0.4737 0.5263 0.5789 0.7368 0.7368 0.7368 0.9474 0.9474 0.9474 0.9474 1.0000 0.0476 0.1905 0.1905 0.1905 0.2381 0.3333 0.3333 0.4286 0.4286 0.5714 0.5714 0.5714 0.7143 0.7143 0.7143 0.8571 0.8571 0.8571 1.0000 1.0000 1.0000 0.0476 0.1905 0.1905 0.1905 0.2857 0.2857 0.4762 0.4762 0.4762 0.4762 0.5714 0.5714 0.7143 0.7143 0.7143 0.7619 0.8095 0.8571 1.0000 1.0000 1.0000 0.1500 0.1500 0.1500 0.2000 0.3000 0.3000 0.4000 0.4000 0.6000 0.6000 0.6000 0.6000 0.6500 0.7000 0.8000 0.8000 0.9000 0.9000 1.0000 1.0000 0.1875 0.1875 0.1875 0.2500 0.3750 0.3750 0.6250 0.6250 0.6250 0.6250 0.6875 0.8125 0.8125 0.8750 1.0000 1.0000 0.1364 0.1364 0.1364 0.1818 0.3182 0.3182 0.3182 0.4545 0.4545 0.4545 0.5000 0.6818 0.6818 0.6818 0.6818 0.7273 0.7727 0.9091 0.9091 0.9091 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.3.8.5 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY b%10 RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.3.8.6 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%2 ORDER BY b%10 RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.3.8.1 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(100) OVER ( ORDER BY a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 88.0000 89.0000 89.0000 90.0000 90.0000 91.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.3.8.2 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(101) OVER ( PARTITION BY b%10 ORDER BY a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 22.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.3.8.3 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(102) OVER ( ORDER BY b,a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 88.0000 89.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.3.8.4 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(103) OVER ( PARTITION BY b%10 ORDER BY b,a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 22.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.3.8.5 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(104) OVER ( ORDER BY b%10,a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000 103.0000 104.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.3.8.6 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(105) OVER (PARTITION BY b%2,a ORDER BY b%10 RANGE BETWEEN CURRENT ROW         AND CURRENT ROW) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.3.8.7 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(105) OVER ( RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 88.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000 103.0000 104.0000 105.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+do_execsql_test 1.3.9.1 {
+  SELECT last_value(a+b) OVER ( ORDER BY a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {99   92   108   72   52   83   55   79   109   65   26   120   119   50
+  70   103   80   124   36   96   59   124   116   110   57   51   52   130
+  103   74   87   48   128   117   105   136   131   71   133   92   109   63
+  84   109   57   146   78   147   113   74   88   150   87   110   65   121
+  106   110   124   85   145   107   161   171   150   156   80   171   120
+  109   158   114   111   136   147   87   173   124   168   173   162   132
+  101   154   167   190   161   110   156   195   198   102   123   177   169
+  140   111   180   119   160   197   152   124   121   134   146   147   132
+  213   141   193   200   210   157   132   136   175   161   218   188   226
+  191   187   208   211   179   138   144   223   196   214   170   212   202
+  163   184   172   173   195   229   240   187   210   200   163   227   228
+  223   191   252   235   225   243   172   187   202   179   179   182   231
+  261   207   263   206   189   209   212   276   181   274   249   239   234
+  213   234   269   196   271   221   210   229   235   250   223   232   229
+  279   224   280   216   207}
+
+do_execsql_test 1.3.9.2 {
+  SELECT last_value(a+b) OVER ( PARTITION BY b%10 ORDER BY a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {147   106   109   168   134   218   191   212   229   240   213   234   196
+  223   92   109   105   136   146   65   156   132   154   102   123   119
+  160   152   146   147   136   243   261   263   210   79   63   84   78
+  120   87   162   124   141   138   227   228   179   231   234   280   124
+  57   130   92   57   110   114   136   147   167   110   180   193   191
+  252   187   179   206   181   221   279   80   116   117   71   80   171
+  173   177   157   161   179   214   225   182   209   269   271   235   229
+  103   74   131   133   113   74   87   145   190   161   169   140   111
+  132   213   187   208   223   235   189   274   108   65   26   70   51
+  52   128   109   121   124   85   107   150   195   226   172   173   187
+  223   207   212   119   50   124   96   110   87   48   110   173   124
+  197   211   144   196   195   200   202   224   216   207   52   83   103
+  36   88   171   158   156   198   121   210   132   210   239   250   232
+  99   72   55   120   59   109   150   161   111   101   200   175   188
+  170   202   163   184   163   172   276   249   229}
+
+do_execsql_test 1.3.9.3 {
+  SELECT last_value(a+b) OVER ( ORDER BY b,a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {65   102   87   138   57   181   80   111   26   48   144   207   36   121
+  132   101   163   172   196   119   136   63   124   179   110   179   182
+  74   132   189   51   52   85   216   163   134   123   210   78   141   57
+  187   71   87   172   173   50   224   88   59   111   170   109   213
+  223   146   147   84   114   191   206   221   157   161   209   229   74
+  140   107   187   207   212   124   202   52   232   55   184   229   106
+  132   152   120   92   110   179   235   65   70   87   110   195   200
+  175   234   160   234   136   80   113   187   109   121   124   196   156
+  210   239   250   72   109   188   202   191   105   154   79   231   147
+  225   103   161   169   223   96   83   249   212   162   227   228   167
+  180   193   117   177   214   145   208   235   150   110   211   103   158
+  200   168   229   92   156   243   280   279   116   173   269   271   131
+  133   223   128   173   197   210   99   150   161   147   218   240   109
+  136   146   261   263   124   130   252   171   190   213   274   108   195
+  226   119   124   171   198   120   276}
+
+do_execsql_test 1.3.9.4 {
+  SELECT last_value(a+b) OVER ( PARTITION BY b%10 ORDER BY b,a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {196   134   109   213   223   106   234   191   212   168   229   147   218
+  240   65   102   119   136   123   210   146   147   132   152   160   105
+  154   92   156   243   109   136   146   261   263   87   138   63   124
+  179   78   141   84   120   234   79   231   162   227   228   280   57
+  181   110   179   57   187   114   191   206   221   92   110   136   147
+  167   180   193   279   124   130   252   80   182   71   157   161   209
+  229   179   235   80   225   117   177   214   116   173   269   271   171
+  111   74   132   189   87   74   140   113   187   103   161   169   145
+  208   235   131   133   223   190   213   274   26   51   52   85   172
+  173   107   187   207   212   65   70   109   121   124   223   150   128
+  108   195   226   48   144   207   216   50   224   124   202   87   110
+  195   200   196   96   110   211   173   197   119   124   36   121   132
+  88   52   232   156   210   239   250   83   103   158   210   171   198
+  101   163   172   163   59   111   170   55   184   229   175   72   109
+  188   202   249   200   99   150   161   120   276}
+
+do_execsql_test 1.3.9.5 {
+  SELECT last_value(a+b) OVER ( ORDER BY b%10,a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {147   106   109   168   134   218   191   212   229   240   213   234   196
+  223   92   109   105   136   146   65   156   132   154   102   123   119
+  160   152   146   147   136   243   261   263   210   79   63   84   78
+  120   87   162   124   141   138   227   228   179   231   234   280   124
+  57   130   92   57   110   114   136   147   167   110   180   193   191
+  252   187   179   206   181   221   279   80   116   117   71   80   171
+  173   177   157   161   179   214   225   182   209   269   271   235   229
+  103   74   131   133   113   74   87   145   190   161   169   140   111
+  132   213   187   208   223   235   189   274   108   65   26   70   51
+  52   128   109   121   124   85   107   150   195   226   172   173   187
+  223   207   212   119   50   124   96   110   87   48   110   173   124
+  197   211   144   196   195   200   202   224   216   207   52   83   103
+  36   88   171   158   156   198   121   210   132   210   239   250   232
+  99   72   55   120   59   109   150   161   111   101   200   175   188
+  170   202   163   184   163   172   276   249   229}
+
+do_execsql_test 1.3.9.6 {
+  SELECT last_value(a+b) OVER (PARTITION BY b%2,a ORDER BY b%10 RANGE BETWEEN CURRENT ROW         AND CURRENT ROW) FROM t2
+} {108   52   83   79   65   26   70   103   80   36   116   51   52   128
+  117   71   63   84   109   78   147   88   121   106   124   85   107   171
+  150   80   171   120   109   158   87   168   173   162   156   195   198
+  177   124   121   134   141   210   157   132   161   218   226   191   179
+  138   214   212   172   173   229   240   187   210   227   228   223   225
+  179   182   231   207   209   212   239   234   213   234   269   196   271
+  235   250   223   232   229   280   99   92   72   55   109   120   119
+  50   124   96   59   124   110   57   130   103   74   87   48   105   136
+  131   133   92   109   57   146   113   74   150   87   110   65   110
+  145   161   156   114   111   136   147   173   124   132   101   154   167
+  190   161   110   102   123   169   140   111   180   119   160   197   152
+  146   147   132   213   193   200   136   175   188   187   208   211   144
+  223   196   170   202   163   184   195   200   163   191   252   235   243
+  172   187   202   179   261   263   206   189   276   181   274   249   221
+  210   229   279   224   216   207}
+
+do_execsql_test 1.3.10.1 {
+  SELECT nth_value(b,b+1) OVER (ORDER BY a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.3.10.2 {
+  SELECT nth_value(b,b+1) OVER (PARTITION BY b%10 ORDER BY a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.3.10.3 {
+  SELECT nth_value(b,b+1) OVER ( ORDER BY b,a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.3.10.4 {
+  SELECT nth_value(b,b+1) OVER ( PARTITION BY b%10 ORDER BY b,a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.3.10.5 {
+  SELECT nth_value(b,b+1) OVER ( ORDER BY b%10,a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.3.10.6 {
+  SELECT nth_value(b,b+1) OVER (PARTITION BY b%2,a ORDER BY b%10 RANGE BETWEEN CURRENT ROW         AND CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.3.11.1 {
+  SELECT first_value(b) OVER (ORDER BY a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW) FROM t2
+} {89   81   96   59   38   68   39   62   91   46   6   99   97   27   46
+  78   54   97   8   67   29   93   84   77   23   16   16   93   65   35
+  47   7   86   74   61   91   85   24   85   43   59   12   32   56   3   91
+  22   90   55   15   28   89   25   47   1   56   40   43   56   16   75
+  36   89   98   76   81   4   94   42   30   78   33   29   53   63   2   87
+  37   80   84   72   41   9   61   73   95   65   13   58   96   98   1   21
+  74   65   35   5   73   11   51   87   41   12   8   20   31   31   15   95
+  22   73   79   88   34   8   11   49   34   90   59   96   60   55   75
+  77   44   2   7   85   57   74   29   70   59   19   39   26   26   47   80
+  90   36   58   47   9   72   72   66   33   93   75   64   81   9   23   37
+  13   12   14   62   91   36   91   33   15   34   36   99   3   95   69
+  58   52   30   50   84   10   84   33   21   39   44   58   30   38   34
+  83   27   82   17   7}
+
+do_execsql_test 1.3.11.2 {
+  SELECT first_value(b) OVER (PARTITION BY b%10 ORDER BY a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW) FROM t2
+} {90   40   30   80   20   90   60   70   80   90   30   50   10   30   81
+  91   61   91   91   1   81   41   61   1   21   11   51   41   31   31   11
+  81   91   91   21   62   12   32   22   42   2   72   12   22   2   72   72
+  12   62   52   82   93   23   93   43   3   43   33   53   63   73   13
+  73   73   33   93   23   13   33   3   33   83   54   84   74   24   4   94
+  84   74   34   34   44   74   64   14   34   84   84   44   34   65   35
+  85   85   55   15   25   75   95   65   65   35   5   15   95   55   75
+  85   75   15   95   96   46   6   46   16   16   86   56   56   56   16
+  36   76   96   96   26   26   36   66   36   36   97   27   97   67   77
+  47   7   47   87   37   87   77   7   57   47   47   37   27   17   7   38
+  68   78   8   28   98   78   58   98   8   88   8   58   58   58   38   89
+  59   39   99   29   59   89   89   29   9   79   49   59   29   59   19
+  39   9   9   99   69   39}
+
+do_execsql_test 1.3.11.3 {
+  SELECT first_value(b) OVER ( ORDER BY b,a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {1   1   2   2   3   3   4   5   6   7   7   7   8   8   8   9   9   9   10
+  11   11   12   12   12   13   13   14   15   15   15   16   16   16   17
+  19   20   21   21   22   22   23   23   24   25   26   26   27   27   28
+  29   29   29   30   30   30   31   31   32   33   33   33   33   34   34
+  34   34   35   35   36   36   36   36   37   37   38   38   39   39   39
+  40   41   41   42   43   43   44   44   46   46   47   47   47   47   49
+  50   51   52   53   54   55   55   56   56   56   57   58   58   58   58
+  59   59   59   59   60   61   61   62   62   63   64   65   65   65   66
+  67   68   69   70   72   72   72   73   73   73   74   74   74   75   75
+  75   76   77   77   78   78   79   80   80   81   81   81   82   83   84
+  84   84   84   85   85   85   86   87   87   88   89   89   89   90   90
+  90   91   91   91   91   91   93   93   93   94   95   95   95   96   96
+  96   97   97   98   98   99   99}
+
+do_execsql_test 1.3.11.4 {
+  SELECT first_value(b) OVER ( PARTITION BY b%10 ORDER BY b,a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {10   20   30   30   30   40   50   60   70   80   80   90   90   90   1   1
+  11   11   21   21   31   31   41   41   51   61   61   81   81   81   91
+  91   91   91   91   2   2   12   12   12   22   22   32   42   52   62   62
+  72   72   72   82   3   3   13   13   23   23   33   33   33   33   43   43
+  53   63   73   73   73   83   93   93   93   4   14   24   34   34   34
+  34   44   44   54   64   74   74   74   84   84   84   84   94   5   15
+  15   15   25   35   35   55   55   65   65   65   75   75   75   85   85
+  85   95   95   95   6   16   16   16   26   26   36   36   36   36   46
+  46   56   56   56   66   76   86   96   96   96   7   7   7   17   27   27
+  37   37   47   47   47   47   57   67   77   77   87   87   97   97   8   8
+  8   28   38   38   58   58   58   58   68   78   78   88   98   98   9   9
+  9   19   29   29   29   39   39   39   49   59   59   59   59   69   79
+  89   89   89   99   99}
+
+do_execsql_test 1.3.11.5 {
+  SELECT first_value(b) OVER ( ORDER BY b%10,a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {90   40   30   80   20   90   60   70   80   90   30   50   10   30   81
+  91   61   91   91   1   81   41   61   1   21   11   51   41   31   31   11
+  81   91   91   21   62   12   32   22   42   2   72   12   22   2   72   72
+  12   62   52   82   93   23   93   43   3   43   33   53   63   73   13
+  73   73   33   93   23   13   33   3   33   83   54   84   74   24   4   94
+  84   74   34   34   44   74   64   14   34   84   84   44   34   65   35
+  85   85   55   15   25   75   95   65   65   35   5   15   95   55   75
+  85   75   15   95   96   46   6   46   16   16   86   56   56   56   16
+  36   76   96   96   26   26   36   66   36   36   97   27   97   67   77
+  47   7   47   87   37   87   77   7   57   47   47   37   27   17   7   38
+  68   78   8   28   98   78   58   98   8   88   8   58   58   58   38   89
+  59   39   99   29   59   89   89   29   9   79   49   59   29   59   19
+  39   9   9   99   69   39}
+
+do_execsql_test 1.3.11.6 {
+  SELECT first_value(b) OVER (PARTITION BY b%2,a ORDER BY b%10 RANGE BETWEEN CURRENT ROW         AND CURRENT ROW) FROM t2
+} {96   38   68   62   46   6   46   78   54   8   84   16   16   86   74   24
+  12   32   56   22   90   28   56   40   56   16   36   98   76   4   94
+  42   30   78   2   80   84   72   58   96   98   74   12   8   20   22   88
+  34   8   34   90   96   60   44   2   74   70   26   26   80   90   36   58
+  72   72   66   64   12   14   62   36   34   36   58   52   30   50   84
+  10   84   44   58   30   38   34   82   89   81   59   39   91   99   97
+  27   97   67   29   93   77   23   93   65   35   47   7   61   91   85
+  85   43   59   3   91   55   15   89   25   47   1   43   75   89   81   33
+  29   53   63   87   37   41   9   61   73   95   65   13   1   21   65   35
+  5   73   11   51   87   41   31   31   15   95   73   79   11   49   59
+  55   75   77   7   85   57   29   59   19   39   47   47   9   33   93   75
+  81   9   23   37   13   91   91   33   15   99   3   95   69   33   21   39
+  83   27   17   7}
+
+do_execsql_test 1.3.12.1 {
+  SELECT lead(b,b) OVER (ORDER BY a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW) FROM t2
+} {96   9   11   89   32   53   91   30   51   56   54   73   22   59   75
+  74   78   8   16   65   15   8   31   87   90   12   32   96   74   76   37
+  85   90   15   35   2   60   36   75   9   51   47   63   51   90   26   42
+  26   8   76   80   90   37   87   56   79   5   87   8   2   39   73   64
+  36   90   72   78   36   73   51   33   20   41   2   26   37   33   8   14
+  33   81   55   1   9   12   39   64   87   72   34   82   21   34   99   62
+  74   41   69   22   75   27   58   8   79   77   26   26   55   {}   29
+  30   7   {}   66   55   2   34   64   {}   33   {}   44   84   {}   {}   95
+  85   19   {}   83   {}   91   {}   {}   9   50   91   33   34   {}   {}
+  84   {}   7   9   {}   {}   {}   44   {}   {}   {}   {}   91   84   {}   95
+  95   52   {}   {}   {}   {}   {}   21   {}   {}   {}   58   {}   {}   {}
+  {}   {}   {}   {}   83   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}}
+
+do_execsql_test 1.3.12.2 {
+  SELECT lead(b,b) OVER (PARTITION BY b%10 ORDER BY a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   81   {}   {}   {}   21   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   62   {}   {}   {}   12   {}   {}   {}   72
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   53   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   34   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   95   {}   {}   {}   {}   {}   {}   85   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   56   {}   36   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   57   {}   {}   {}   {}   {}   7   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   8   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.3.12.3 {
+  SELECT lead(b,b) OVER ( ORDER BY b,a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {1   2   3   3   5   6   7   8   8   9   9   10   11   12   12   13   13
+  14   15   16   16   17   19   20   21   22   23   24   25   26   27   27
+  28   29   30   31   32   33   33   33   34   34   35   36   36   36   37
+  38   39   39   40   41   42   43   43   44   46   47   47   47   49   50
+  52   53   54   55   56   56   57   58   58   58   59   59   59   60   61
+  62   62   64   65   65   67   69   70   72   72   73   74   74   75   75
+  75   77   78   80   81   81   83   84   84   85   85   85   87   88   89
+  89   89   90   90   91   91   91   93   93   94   95   95   96   97   97
+  98   99   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.3.12.4 {
+  SELECT lead(b,b) OVER ( PARTITION BY b%10 ORDER BY b,a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {80   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   1
+  11   81   81   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   12   12   72   82   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   13   23   73   73   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   34   84   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   35   85   85   95   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   36   86   96   96   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   37   47
+  47   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   58   58   68   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   39   49   59   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.3.12.5 {
+  SELECT lead(b,b) OVER ( ORDER BY b%10,a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {34   72   91   74   21   55   23   94   84   95   2   13   61   22   55
+  55   94   85   75   81   65   73   74   21   72   12   94   33   63   73
+  72   96   36   76   3   25   62   3   73   34   12   46   43   93   72   16
+  86   63   15   65   36   77   24   57   25   53   95   34   95   16   97
+  74   97   67   25   98   44   34   65   54   5   68   96   28   47   95
+  34   39   8   38   6   46   96   28   47   95   56   39   99   97   76   8
+  26   9   79   27   95   16   29   {}   58   58   77   85   56   {}   98
+  29   {}   19   96   {}   {}   78   56   98   36   97   {}   89   89   29
+  47   78   {}   {}   {}   38   68   58   {}   58   38   {}   98   {}   {}
+  {}   39   57   9   {}   79   {}   {}   7   {}   {}   {}   9   29   38   78
+  {}   {}   {}   8   39   {}   {}   {}   {}   59   {}   99   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.3.12.6 {
+  SELECT lead(b,b) OVER (PARTITION BY b%2,a ORDER BY b%10 RANGE BETWEEN CURRENT ROW         AND CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.3.13.1 {
+  SELECT lag(b,b) OVER (ORDER BY a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   38   {}   {}   {}   {}
+  {}   {}   {}   6   {}   {}   {}   {}   {}   81   46   6   {}   {}   {}   {}
+  23   {}   {}   {}   {}   {}   27   {}   {}   {}   35   6   {}   12   {}
+  23   {}   {}   61   84   {}   93   39   47   {}   54   46   96   56   {}
+  16   {}   {}   {}   {}   89   {}   16   43   {}   85   56   29   99   53
+  {}   59   {}   {}   91   59   53   84   99   {}   93   63   47   {}   {}
+  98   33   67   35   75   1   23   13   55   27   75   98   35   73   63   2
+  21   27   13   24   86   23   84   31   20   94   61   65   75   23   36
+  94   55   90   41   77   96   56   29   40   12   89   63   11   5   73
+  79   1   16   28   31   73   5   39   53   63   41   11   40   2   13   33
+  9   29   90   47   72   9   73   30   44   33   74   93   29   74   42   34
+  63   41   34   96   47   77   1   36   74   72   14   36   26   77   9   72
+  64   8   91   31   52   30}
+
+do_execsql_test 1.3.13.2 {
+  SELECT lag(b,b) OVER (PARTITION BY b%10 ORDER BY a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   61   {}   81   {}   {}   {}   {}
+  1   {}   {}   {}   {}   {}   {}   {}   {}   {}   22   {}   {}   {}   12
+  {}   {}   62   {}   {}   {}   {}   {}   {}   {}   23   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   43   {}   23   {}   {}   {}   {}   {}
+  {}   54   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   75   {}
+  {}   {}   {}   {}   {}   55   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   47   {}   {}   {}   {}
+  {}   27   7   {}   {}   {}   {}   {}   {}   {}   {}   {}   68   {}   8   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   89   {}   {}
+  {}   {}   {}   {}   {}   29   9   {}   {}   {}}
+
+do_execsql_test 1.3.13.3 {
+  SELECT lag(b,b) OVER ( ORDER BY b,a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {{}   1   1   1   1   2   2   2   2   2   2   3   3   3   4   4   5   6   6
+  6   7   7   7   7   7   8   8   8   8   8   8   9   9   9   9   9   9   9
+  9   9   9   10   10   10   10   11   11   11   11   11   12   12   12   12
+  13   13   13   13   13   14   15   15   15   15   16   16   16   16   16
+  17   19   20   20   21   21   21   21   22   22   22   22   23   23   23
+  23   23   24   23   24   24   25   26   26   26   26   26   26   26   26
+  26   26   26   27   27   27   27   28   29   29   29   29   30   30   30
+  30   30   30   31   31   31   31   31   32   32   32   32   32   32   31
+  32   33   33   33   33   33   33   34   34   34   34   34   34   34   34
+  35   35   35   35   35   36   36   36   36   36   36   36   37   37   37
+  38   38   38   38   38   38   39   39   39   39   40   40   41   41   42
+  43   42   43   43   43   43   44   44   44   46   46   46   47   47   47
+  47   47}
+
+do_execsql_test 1.3.13.4 {
+  SELECT lag(b,b) OVER ( PARTITION BY b%10 ORDER BY b,a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  1   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.3.13.5 {
+  SELECT lag(b,b) OVER ( ORDER BY b%10,a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   61   80   81   {}   {}   {}   {}
+  1   {}   {}   {}   30   {}   21   90   61   {}   22   {}   11   41   12
+  {}   {}   62   {}   {}   {}   {}   31   {}   50   23   30   21   90   {}
+  {}   62   {}   {}   81   {}   22   43   62   23   32   {}   91   {}   90
+  93   54   {}   {}   90   72   12   22   90   81   83   23   80   20   72
+  43   51   33   80   90   2   34   54   1   20   62   12   13   75   44   30
+  93   91   1   21   55   61   61   13   85   3   65   65   91   73   33   93
+  55   84   62   31   11   65   35   85   33   55   15   12   75   22   3
+  73   65   36   85   43   95   43   13   47   44   65   65   96   36   27
+  7   46   34   94   47   36   73   34   35   73   68   24   8   75   85   75
+  66   34   95   36   84   77   46   34   84   47   89   65   36   16   38
+  76   58   57   29   9   44   56   17}
+
+do_execsql_test 1.3.13.6 {
+  SELECT lag(b,b) OVER (PARTITION BY b%2,a ORDER BY b%10 RANGE BETWEEN CURRENT ROW         AND CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.3.14.1 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (ORDER BY a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW) FROM t2
+} {89   81   96   59   38   68   39   62   91   46   6   99   97   27   46
+  78   54   97   8   67   29   93   84   77   23   16   16   93   65   35
+  47   7   86   74   61   91   85   24   85   43   59   12   32   56   3   91
+  22   90   55   15   28   89   25   47   1   56   40   43   56   16   75
+  36   89   98   76   81   4   94   42   30   78   33   29   53   63   2   87
+  37   80   84   72   41   9   61   73   95   65   13   58   96   98   1   21
+  74   65   35   5   73   11   51   87   41   12   8   20   31   31   15   95
+  22   73   79   88   34   8   11   49   34   90   59   96   60   55   75
+  77   44   2   7   85   57   74   29   70   59   19   39   26   26   47   80
+  90   36   58   47   9   72   72   66   33   93   75   64   81   9   23   37
+  13   12   14   62   91   36   91   33   15   34   36   99   3   95   69
+  58   52   30   50   84   10   84   33   21   39   44   58   30   38   34
+  83   27   82   17   7}
+
+do_execsql_test 1.3.14.2 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (PARTITION BY b%10 ORDER BY a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW) FROM t2
+} {90   40   30   80   20   90   60   70   80   90   30   50   10   30   81
+  91   61   91   91   1   81   41   61   1   21   11   51   41   31   31   11
+  81   91   91   21   62   12   32   22   42   2   72   12   22   2   72   72
+  12   62   52   82   93   23   93   43   3   43   33   53   63   73   13
+  73   73   33   93   23   13   33   3   33   83   54   84   74   24   4   94
+  84   74   34   34   44   74   64   14   34   84   84   44   34   65   35
+  85   85   55   15   25   75   95   65   65   35   5   15   95   55   75
+  85   75   15   95   96   46   6   46   16   16   86   56   56   56   16
+  36   76   96   96   26   26   36   66   36   36   97   27   97   67   77
+  47   7   47   87   37   87   77   7   57   47   47   37   27   17   7   38
+  68   78   8   28   98   78   58   98   8   88   8   58   58   58   38   89
+  59   39   99   29   59   89   89   29   9   79   49   59   29   59   19
+  39   9   9   99   69   39}
+
+do_execsql_test 1.3.14.3 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( ORDER BY b,a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {1   1   2   2   3   3   4   5   6   7   7   7   8   8   8   9   9   9   10
+  11   11   12   12   12   13   13   14   15   15   15   16   16   16   17
+  19   20   21   21   22   22   23   23   24   25   26   26   27   27   28
+  29   29   29   30   30   30   31   31   32   33   33   33   33   34   34
+  34   34   35   35   36   36   36   36   37   37   38   38   39   39   39
+  40   41   41   42   43   43   44   44   46   46   47   47   47   47   49
+  50   51   52   53   54   55   55   56   56   56   57   58   58   58   58
+  59   59   59   59   60   61   61   62   62   63   64   65   65   65   66
+  67   68   69   70   72   72   72   73   73   73   74   74   74   75   75
+  75   76   77   77   78   78   79   80   80   81   81   81   82   83   84
+  84   84   84   85   85   85   86   87   87   88   89   89   89   90   90
+  90   91   91   91   91   91   93   93   93   94   95   95   95   96   96
+  96   97   97   98   98   99   99}
+
+do_execsql_test 1.3.14.4 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( PARTITION BY b%10 ORDER BY b,a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {10   20   30   30   30   40   50   60   70   80   80   90   90   90   1   1
+  11   11   21   21   31   31   41   41   51   61   61   81   81   81   91
+  91   91   91   91   2   2   12   12   12   22   22   32   42   52   62   62
+  72   72   72   82   3   3   13   13   23   23   33   33   33   33   43   43
+  53   63   73   73   73   83   93   93   93   4   14   24   34   34   34
+  34   44   44   54   64   74   74   74   84   84   84   84   94   5   15
+  15   15   25   35   35   55   55   65   65   65   75   75   75   85   85
+  85   95   95   95   6   16   16   16   26   26   36   36   36   36   46
+  46   56   56   56   66   76   86   96   96   96   7   7   7   17   27   27
+  37   37   47   47   47   47   57   67   77   77   87   87   97   97   8   8
+  8   28   38   38   58   58   58   58   68   78   78   88   98   98   9   9
+  9   19   29   29   29   39   39   39   49   59   59   59   59   69   79
+  89   89   89   99   99}
+
+do_execsql_test 1.3.14.5 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( ORDER BY b%10,a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {90   40   30   80   20   90   60   70   80   90   30   50   10   30   81
+  91   61   91   91   1   81   41   61   1   21   11   51   41   31   31   11
+  81   91   91   21   62   12   32   22   42   2   72   12   22   2   72   72
+  12   62   52   82   93   23   93   43   3   43   33   53   63   73   13
+  73   73   33   93   23   13   33   3   33   83   54   84   74   24   4   94
+  84   74   34   34   44   74   64   14   34   84   84   44   34   65   35
+  85   85   55   15   25   75   95   65   65   35   5   15   95   55   75
+  85   75   15   95   96   46   6   46   16   16   86   56   56   56   16
+  36   76   96   96   26   26   36   66   36   36   97   27   97   67   77
+  47   7   47   87   37   87   77   7   57   47   47   37   27   17   7   38
+  68   78   8   28   98   78   58   98   8   88   8   58   58   58   38   89
+  59   39   99   29   59   89   89   29   9   79   49   59   29   59   19
+  39   9   9   99   69   39}
+
+do_execsql_test 1.3.14.6 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (PARTITION BY b%2,a ORDER BY b%10 RANGE BETWEEN CURRENT ROW         AND CURRENT ROW) FROM t2
+} {96   38   68   62   46   6   46   78   54   8   84   16   16   86   74   24
+  12   32   56   22   90   28   56   40   56   16   36   98   76   4   94
+  42   30   78   2   80   84   72   58   96   98   74   12   8   20   22   88
+  34   8   34   90   96   60   44   2   74   70   26   26   80   90   36   58
+  72   72   66   64   12   14   62   36   34   36   58   52   30   50   84
+  10   84   44   58   30   38   34   82   89   81   59   39   91   99   97
+  27   97   67   29   93   77   23   93   65   35   47   7   61   91   85
+  85   43   59   3   91   55   15   89   25   47   1   43   75   89   81   33
+  29   53   63   87   37   41   9   61   73   95   65   13   1   21   65   35
+  5   73   11   51   87   41   31   31   15   95   73   79   11   49   59
+  55   75   77   7   85   57   29   59   19   39   47   47   9   33   93   75
+  81   9   23   37   13   91   91   33   15   99   3   95   69   33   21   39
+  83   27   17   7}
+
+do_execsql_test 1.3.14.7 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (win1 ORDER BY b%10 RANGE BETWEEN CURRENT ROW         AND CURRENT ROW) 
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a)
+    ORDER BY 1
+} {1   1   10   11   11   12   12   12   13   13   14   15   15   15   16   16
+  16   17   19   2   2   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   3   3   30   30   30   31   31   32   33   33
+  33   33   34   34   34   34   35   35   36   36   36   36   37   37   38
+  38   39   39   39   4   40   41   41   42   43   43   44   44   46   46
+  47   47   47   47   49   5   50   51   52   53   54   55   55   56   56
+  56   57   58   58   58   58   59   59   59   59   6   60   61   61   62
+  62   63   64   65   65   65   66   67   68   69   7   7   7   70   72   72
+  72   73   73   73   74   74   74   75   75   75   76   77   77   78   78
+  79   8   8   8   80   80   81   81   81   82   83   84   84   84   84   85
+  85   85   86   87   87   88   89   89   89   9   9   9   90   90   90   91
+  91   91   91   91   93   93   93   94   95   95   95   96   96   96   97
+  97   98   98   99   99}
+
+do_execsql_test 1.3.14.8 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (win1 RANGE BETWEEN CURRENT ROW         AND CURRENT ROW) 
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a ORDER BY b%10)
+    ORDER BY 1
+} {1   1   10   11   11   12   12   12   13   13   14   15   15   15   16   16
+  16   17   19   2   2   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   3   3   30   30   30   31   31   32   33   33
+  33   33   34   34   34   34   35   35   36   36   36   36   37   37   38
+  38   39   39   39   4   40   41   41   42   43   43   44   44   46   46
+  47   47   47   47   49   5   50   51   52   53   54   55   55   56   56
+  56   57   58   58   58   58   59   59   59   59   6   60   61   61   62
+  62   63   64   65   65   65   66   67   68   69   7   7   7   70   72   72
+  72   73   73   73   74   74   74   75   75   75   76   77   77   78   78
+  79   8   8   8   80   80   81   81   81   82   83   84   84   84   84   85
+  85   85   86   87   87   88   89   89   89   9   9   9   90   90   90   91
+  91   91   91   91   93   93   93   94   95   95   95   96   96   96   97
+  97   98   98   99   99}
+
+do_execsql_test 1.3.14.9 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER win2
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a ORDER BY b%10),
+           win2 AS (win1 RANGE BETWEEN CURRENT ROW         AND CURRENT ROW)
+    ORDER BY 1
+} {1   1   10   11   11   12   12   12   13   13   14   15   15   15   16   16
+  16   17   19   2   2   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   3   3   30   30   30   31   31   32   33   33
+  33   33   34   34   34   34   35   35   36   36   36   36   37   37   38
+  38   39   39   39   4   40   41   41   42   43   43   44   44   46   46
+  47   47   47   47   49   5   50   51   52   53   54   55   55   56   56
+  56   57   58   58   58   58   59   59   59   59   6   60   61   61   62
+  62   63   64   65   65   65   66   67   68   69   7   7   7   70   72   72
+  72   73   73   73   74   74   74   75   75   75   76   77   77   78   78
+  79   8   8   8   80   80   81   81   81   82   83   84   84   84   84   85
+  85   85   86   87   87   88   89   89   89   9   9   9   90   90   90   91
+  91   91   91   91   93   93   93   94   95   95   95   96   96   96   97
+  97   98   98   99   99}
+
+do_execsql_test 1.3.15.1 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE a%2=0) OVER win FROM t2
+    WINDOW win AS (ORDER BY a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW)
+} {1 89   1 {}   1 96   1 {}   1 38   1 {}   1 39   1 {}   1 91   1 {}   1 6
+  1 {}   1 97   1 {}   1 46   1 {}   1 54   1 {}   1 8   1 {}   1 29   1 {}
+  1 84   1 {}   1 23   1 {}   1 16   1 {}   1 65   1 {}   1 47   1 {}   1 86
+  1 {}   1 61   1 {}   1 85   1 {}   1 85   1 {}   1 59   1 {}   1 32   1 {}
+  1 3   1 {}   1 22   1 {}   1 55   1 {}   1 28   1 {}   1 25   1 {}   1 1
+  1 {}   1 40   1 {}   1 56   1 {}   1 75   1 {}   1 89   1 {}   1 76   1 {}
+  1 4   1 {}   1 42   1 {}   1 78   1 {}   1 29   1 {}   1 63   1 {}   1 87
+  1 {}   1 80   1 {}   1 72   1 {}   1 9   1 {}   1 73   1 {}   1 65   1 {}
+  1 58   1 {}   1 98   1 {}   1 21   1 {}   1 65   1 {}   1 5   1 {}   1 11
+  1 {}   1 87   1 {}   1 12   1 {}   1 20   1 {}   1 31   1 {}   1 95   1 {}
+  1 73   1 {}   1 88   1 {}   1 8   1 {}   1 49   1 {}   1 90   1 {}   1 96
+  1 {}   1 55   1 {}   1 77   1 {}   1 2   1 {}   1 85   1 {}   1 74   1 {}
+  1 70   1 {}   1 19   1 {}   1 26   1 {}   1 47   1 {}   1 90   1 {}   1 58
+  1 {}   1 9   1 {}   1 72   1 {}   1 33   1 {}   1 75   1 {}   1 81   1 {}
+  1 23   1 {}   1 13   1 {}   1 14   1 {}   1 91   1 {}   1 91   1 {}   1 15
+  1 {}   1 36   1 {}   1 3   1 {}   1 69   1 {}   1 52   1 {}   1 50   1 {}
+  1 10   1 {}   1 33   1 {}   1 39   1 {}   1 58   1 {}   1 38   1 {}   1 83
+  1 {}   1 82   1 {}   1 7}
+
+do_execsql_test 1.3.15.2 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE 0=1) OVER win FROM t2
+    WINDOW win AS (ORDER BY a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW)
+} {1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}}
+
+do_execsql_test 1.3.15.3 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE 1=0) OVER win FROM t2
+    WINDOW win AS (PARTITION BY (a%10) ORDER BY a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW)
+} {1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}}
+
+do_execsql_test 1.3.15.4 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE a%2=0) OVER win FROM t2
+    WINDOW win AS (PARTITION BY (a%10) ORDER BY a RANGE BETWEEN CURRENT ROW         AND CURRENT ROW)
+} {1 89   1 6   1 29   1 47   1 59   1 28   1 75   1 78   1 72   1 98   1 87
+  1 73   1 96   1 74   1 90   1 75   1 91   1 69   1 39   1 7   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 96   1 97   1 84   1 86   1 32
+  1 25   1 89   1 29   1 9   1 21   1 12   1 88   1 55   1 70   1 58   1 81
+  1 91   1 52   1 58   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 38   1 46   1 23   1 61   1 3   1 1   1 76   1 63   1 73   1 65   1 20
+  1 8   1 77   1 19   1 9   1 23   1 15   1 50   1 38   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 39   1 54   1 16   1 85   1 22   1 40
+  1 4   1 87   1 65   1 5   1 31   1 49   1 2   1 26   1 72   1 13   1 36
+  1 10   1 83   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 91
+  1 8   1 65   1 85   1 55   1 56   1 42   1 80   1 58   1 11   1 95   1 90
+  1 85   1 47   1 33   1 14   1 3   1 33   1 82   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}}
+
+do_execsql_test 1.4.2.1 {
+  SELECT max(b) OVER ( ORDER BY a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   95   95   84   84   84   84   84   84   84   84   83   83
+  83   83   83   83   83   83   83   82   82   17   7}
+
+do_execsql_test 1.4.2.2 {
+  SELECT min(b) OVER ( ORDER BY a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   7   7
+  7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7
+  7}
+
+do_execsql_test 1.4.3.1 {
+  SELECT row_number() OVER ( ORDER BY a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.4.3.2 {
+  SELECT row_number() OVER ( PARTITION BY b%10 ORDER BY a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.4.3.3 {
+  SELECT row_number() OVER ( RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.4.4.1 {
+  SELECT dense_rank() OVER ( ORDER BY a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.4.4.2 {
+  SELECT dense_rank() OVER ( PARTITION BY b%10 ORDER BY a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.4.4.3 {
+  SELECT dense_rank() OVER ( ORDER BY b RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   2   2   3   3   4   5   6   7   7   7   8   8   8   9   9   9   10
+  11   11   12   12   12   13   13   14   15   15   15   16   16   16   17
+  18   19   20   20   21   21   22   22   23   24   25   25   26   26   27
+  28   28   28   29   29   29   30   30   31   32   32   32   32   33   33
+  33   33   34   34   35   35   35   35   36   36   37   37   38   38   38
+  39   40   40   41   42   42   43   43   44   44   45   45   45   45   46
+  47   48   49   50   51   52   52   53   53   53   54   55   55   55   55
+  56   56   56   56   57   58   58   59   59   60   61   62   62   62   63
+  64   65   66   67   68   68   68   69   69   69   70   70   70   71   71
+  71   72   73   73   74   74   75   76   76   77   77   77   78   79   80
+  80   80   80   81   81   81   82   83   83   84   85   85   85   86   86
+  86   87   87   87   87   87   88   88   88   89   90   90   90   91   91
+  91   92   92   93   93   94   94}
+
+do_execsql_test 1.4.4.4 {
+  SELECT dense_rank() OVER ( PARTITION BY b%10 ORDER BY b RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   3   3   4   5   6   7   8   8   9   9   9   1   1   2   2   3
+  3   4   4   5   5   6   7   7   8   8   8   9   9   9   9   9   1   1   2
+  2   2   3   3   4   5   6   7   7   8   8   8   9   1   1   2   2   3   3
+  4   4   4   4   5   5   6   7   8   8   8   9   10   10   10   1   2   3
+  4   4   4   4   5   5   6   7   8   8   8   9   9   9   9   10   1   2   2
+  2   3   4   4   5   5   6   6   6   7   7   7   8   8   8   9   9   9   1
+  2   2   2   3   3   4   4   4   4   5   5   6   6   6   7   8   9   10   10
+  10   1   1   1   2   3   3   4   4   5   5   5   5   6   7   8   8   9   9
+  10   10   1   1   1   2   3   3   4   4   4   4   5   6   6   7   8   8   1
+  1   1   2   3   3   3   4   4   4   5   6   6   6   6   7   8   9   9   9
+  10   10}
+
+do_execsql_test 1.4.4.5 {
+  SELECT dense_rank() OVER ( ORDER BY b%10 RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   4   4   4   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5   5   5   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   6   6   6   6
+  6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   7   7
+  7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7
+  8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8
+  8   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   10   10
+  10   10   10   10   10   10   10   10   10   10   10   10   10   10   10
+  10   10   10   10   10}
+
+do_execsql_test 1.4.4.6 {
+  SELECT dense_rank() OVER ( PARTITION BY b%2 ORDER BY b%10 RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   3   3   3   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   4   4   4   4   4   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   5   5   5   5   5   5
+  5   5   5   5   5   5   5   5   5   5   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5
+  5}
+
+do_execsql_test 1.4.5.1 {
+  SELECT rank() OVER ( ORDER BY a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.4.5.2 {
+  SELECT rank() OVER ( PARTITION BY b%10 ORDER BY a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.4.5.3 {
+  SELECT rank() OVER ( ORDER BY b RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   3   3   5   5   7   8   9   10   10   10   13   13   13   16   16
+  16   19   20   20   22   22   22   25   25   27   28   28   28   31   31
+  31   34   35   36   37   37   39   39   41   41   43   44   45   45   47
+  47   49   50   50   50   53   53   53   56   56   58   59   59   59   59
+  63   63   63   63   67   67   69   69   69   69   73   73   75   75   77
+  77   77   80   81   81   83   84   84   86   86   88   88   90   90   90
+  90   94   95   96   97   98   99   100   100   102   102   102   105   106
+  106   106   106   110   110   110   110   114   115   115   117   117   119
+  120   121   121   121   124   125   126   127   128   129   129   129   132
+  132   132   135   135   135   138   138   138   141   142   142   144   144
+  146   147   147   149   149   149   152   153   154   154   154   154   158
+  158   158   161   162   162   164   165   165   165   168   168   168   171
+  171   171   171   171   176   176   176   179   180   180   180   183   183
+  183   186   186   188   188   190   190}
+
+do_execsql_test 1.4.5.4 {
+  SELECT rank() OVER ( PARTITION BY b%10 ORDER BY b RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   3   3   6   7   8   9   10   10   12   12   12   1   1   3   3
+  5   5   7   7   9   9   11   12   12   14   14   14   17   17   17   17
+  17   1   1   3   3   3   6   6   8   9   10   11   11   13   13   13   16
+  1   1   3   3   5   5   7   7   7   7   11   11   13   14   15   15   15
+  18   19   19   19   1   2   3   4   4   4   4   8   8   10   11   12   12
+  12   15   15   15   15   19   1   2   2   2   5   6   6   8   8   10   10
+  10   13   13   13   16   16   16   19   19   19   1   2   2   2   5   5   7
+  7   7   7   11   11   13   13   13   16   17   18   19   19   19   1   1
+  1   4   5   5   7   7   9   9   9   9   13   14   15   15   17   17   19
+  19   1   1   1   4   5   5   7   7   7   7   11   12   12   14   15   15
+  1   1   1   4   5   5   5   8   8   8   11   12   12   12   12   16   17
+  18   18   18   21   21}
+
+do_execsql_test 1.4.5.5 {
+  SELECT rank() OVER ( ORDER BY b%10 RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   15   15   15   15
+  15   15   15   15   15   15   15   15   15   15   15   15   15   15   15
+  15   15   36   36   36   36   36   36   36   36   36   36   36   36   36
+  36   36   36   52   52   52   52   52   52   52   52   52   52   52   52
+  52   52   52   52   52   52   52   52   52   73   73   73   73   73   73
+  73   73   73   73   73   73   73   73   73   73   73   73   73   92   92
+  92   92   92   92   92   92   92   92   92   92   92   92   92   92   92
+  92   92   92   92   113   113   113   113   113   113   113   113   113
+  113   113   113   113   113   113   113   113   113   113   113   113   134
+  134   134   134   134   134   134   134   134   134   134   134   134   134
+  134   134   134   134   134   134   154   154   154   154   154   154   154
+  154   154   154   154   154   154   154   154   154   170   170   170   170
+  170   170   170   170   170   170   170   170   170   170   170   170   170
+  170   170   170   170   170}
+
+do_execsql_test 1.4.5.6 {
+  SELECT rank() OVER ( PARTITION BY b%2 ORDER BY b%10 RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   15   15   15   15
+  15   15   15   15   15   15   15   15   15   15   15   15   31   31   31
+  31   31   31   31   31   31   31   31   31   31   31   31   31   31   31
+  31   50   50   50   50   50   50   50   50   50   50   50   50   50   50
+  50   50   50   50   50   50   50   71   71   71   71   71   71   71   71
+  71   71   71   71   71   71   71   71   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   22   22   22   22   22   22
+  22   22   22   22   22   22   22   22   22   22   22   22   22   22   22
+  43   43   43   43   43   43   43   43   43   43   43   43   43   43   43
+  43   43   43   43   43   43   64   64   64   64   64   64   64   64   64
+  64   64   64   64   64   64   64   64   64   64   64   84   84   84   84
+  84   84   84   84   84   84   84   84   84   84   84   84   84   84   84
+  84   84   84}
+
+do_execsql_test 1.4.6.1 {
+  SELECT 
+      row_number() OVER ( PARTITION BY b%2 ORDER BY b%10 RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ),
+      rank() OVER ( PARTITION BY b%2 ORDER BY b%10 RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ),
+      dense_rank() OVER ( PARTITION BY b%2 ORDER BY b%10 RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING )
+    FROM t2
+} {1 1 1   2 1 1   3 1 1   4 1 1   5 1 1   6 1 1   7 1 1   8 1 1   9 1 1
+  10 1 1   11 1 1   12 1 1   13 1 1   14 1 1   15 15 2   16 15 2   17 15 2
+  18 15 2   19 15 2   20 15 2   21 15 2   22 15 2   23 15 2   24 15 2
+  25 15 2   26 15 2   27 15 2   28 15 2   29 15 2   30 15 2   31 31 3
+  32 31 3   33 31 3   34 31 3   35 31 3   36 31 3   37 31 3   38 31 3
+  39 31 3   40 31 3   41 31 3   42 31 3   43 31 3   44 31 3   45 31 3
+  46 31 3   47 31 3   48 31 3   49 31 3   50 50 4   51 50 4   52 50 4
+  53 50 4   54 50 4   55 50 4   56 50 4   57 50 4   58 50 4   59 50 4
+  60 50 4   61 50 4   62 50 4   63 50 4   64 50 4   65 50 4   66 50 4
+  67 50 4   68 50 4   69 50 4   70 50 4   71 71 5   72 71 5   73 71 5
+  74 71 5   75 71 5   76 71 5   77 71 5   78 71 5   79 71 5   80 71 5
+  81 71 5   82 71 5   83 71 5   84 71 5   85 71 5   86 71 5   1 1 1   2 1 1
+  3 1 1   4 1 1   5 1 1   6 1 1   7 1 1   8 1 1   9 1 1   10 1 1   11 1 1
+  12 1 1   13 1 1   14 1 1   15 1 1   16 1 1   17 1 1   18 1 1   19 1 1
+  20 1 1   21 1 1   22 22 2   23 22 2   24 22 2   25 22 2   26 22 2   27 22 2
+  28 22 2   29 22 2   30 22 2   31 22 2   32 22 2   33 22 2   34 22 2
+  35 22 2   36 22 2   37 22 2   38 22 2   39 22 2   40 22 2   41 22 2
+  42 22 2   43 43 3   44 43 3   45 43 3   46 43 3   47 43 3   48 43 3
+  49 43 3   50 43 3   51 43 3   52 43 3   53 43 3   54 43 3   55 43 3
+  56 43 3   57 43 3   58 43 3   59 43 3   60 43 3   61 43 3   62 43 3
+  63 43 3   64 64 4   65 64 4   66 64 4   67 64 4   68 64 4   69 64 4
+  70 64 4   71 64 4   72 64 4   73 64 4   74 64 4   75 64 4   76 64 4
+  77 64 4   78 64 4   79 64 4   80 64 4   81 64 4   82 64 4   83 64 4
+  84 84 5   85 84 5   86 84 5   87 84 5   88 84 5   89 84 5   90 84 5
+  91 84 5   92 84 5   93 84 5   94 84 5   95 84 5   96 84 5   97 84 5
+  98 84 5   99 84 5   100 84 5   101 84 5   102 84 5   103 84 5   104 84 5
+  105 84 5}
+
+
+do_test 1.4.7.1 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0053 0.0105 0.0158 0.0211 0.0263 0.0316 0.0368 0.0421 0.0474 0.0526 0.0579 0.0632 0.0684 0.0737 0.0789 0.0842 0.0895 0.0947 0.1000 0.1053 0.1105 0.1158 0.1211 0.1263 0.1316 0.1368 0.1421 0.1474 0.1526 0.1579 0.1632 0.1684 0.1737 0.1789 0.1842 0.1895 0.1947 0.2000 0.2053 0.2105 0.2158 0.2211 0.2263 0.2316 0.2368 0.2421 0.2474 0.2526 0.2579 0.2632 0.2684 0.2737 0.2789 0.2842 0.2895 0.2947 0.3000 0.3053 0.3105 0.3158 0.3211 0.3263 0.3316 0.3368 0.3421 0.3474 0.3526 0.3579 0.3632 0.3684 0.3737 0.3789 0.3842 0.3895 0.3947 0.4000 0.4053 0.4105 0.4158 0.4211 0.4263 0.4316 0.4368 0.4421 0.4474 0.4526 0.4579 0.4632 0.4684 0.4737 0.4789 0.4842 0.4895 0.4947 0.5000 0.5053 0.5105 0.5158 0.5211 0.5263 0.5316 0.5368 0.5421 0.5474 0.5526 0.5579 0.5632 0.5684 0.5737 0.5789 0.5842 0.5895 0.5947 0.6000 0.6053 0.6105 0.6158 0.6211 0.6263 0.6316 0.6368 0.6421 0.6474 0.6526 0.6579 0.6632 0.6684 0.6737 0.6789 0.6842 0.6895 0.6947 0.7000 0.7053 0.7105 0.7158 0.7211 0.7263 0.7316 0.7368 0.7421 0.7474 0.7526 0.7579 0.7632 0.7684 0.7737 0.7789 0.7842 0.7895 0.7947 0.8000 0.8053 0.8105 0.8158 0.8211 0.8263 0.8316 0.8368 0.8421 0.8474 0.8526 0.8579 0.8632 0.8684 0.8737 0.8789 0.8842 0.8895 0.8947 0.9000 0.9053 0.9105 0.9158 0.9211 0.9263 0.9316 0.9368 0.9421 0.9474 0.9526 0.9579 0.9632 0.9684 0.9737 0.9789 0.9842 0.9895 0.9947 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.4.7.2 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( PARTITION BY b%10 ORDER BY a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0769 0.1538 0.2308 0.3077 0.3846 0.4615 0.5385 0.6154 0.6923 0.7692 0.8462 0.9231 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0667 0.1333 0.2000 0.2667 0.3333 0.4000 0.4667 0.5333 0.6000 0.6667 0.7333 0.8000 0.8667 0.9333 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0556 0.1111 0.1667 0.2222 0.2778 0.3333 0.3889 0.4444 0.5000 0.5556 0.6111 0.6667 0.7222 0.7778 0.8333 0.8889 0.9444 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0526 0.1053 0.1579 0.2105 0.2632 0.3158 0.3684 0.4211 0.4737 0.5263 0.5789 0.6316 0.6842 0.7368 0.7895 0.8421 0.8947 0.9474 1.0000 0.0000 0.0667 0.1333 0.2000 0.2667 0.3333 0.4000 0.4667 0.5333 0.6000 0.6667 0.7333 0.8000 0.8667 0.9333 1.0000 0.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.4.7.3 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY b RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0105 0.0105 0.0211 0.0211 0.0316 0.0368 0.0421 0.0474 0.0474 0.0474 0.0632 0.0632 0.0632 0.0789 0.0789 0.0789 0.0947 0.1000 0.1000 0.1105 0.1105 0.1105 0.1263 0.1263 0.1368 0.1421 0.1421 0.1421 0.1579 0.1579 0.1579 0.1737 0.1789 0.1842 0.1895 0.1895 0.2000 0.2000 0.2105 0.2105 0.2211 0.2263 0.2316 0.2316 0.2421 0.2421 0.2526 0.2579 0.2579 0.2579 0.2737 0.2737 0.2737 0.2895 0.2895 0.3000 0.3053 0.3053 0.3053 0.3053 0.3263 0.3263 0.3263 0.3263 0.3474 0.3474 0.3579 0.3579 0.3579 0.3579 0.3789 0.3789 0.3895 0.3895 0.4000 0.4000 0.4000 0.4158 0.4211 0.4211 0.4316 0.4368 0.4368 0.4474 0.4474 0.4579 0.4579 0.4684 0.4684 0.4684 0.4684 0.4895 0.4947 0.5000 0.5053 0.5105 0.5158 0.5211 0.5211 0.5316 0.5316 0.5316 0.5474 0.5526 0.5526 0.5526 0.5526 0.5737 0.5737 0.5737 0.5737 0.5947 0.6000 0.6000 0.6105 0.6105 0.6211 0.6263 0.6316 0.6316 0.6316 0.6474 0.6526 0.6579 0.6632 0.6684 0.6737 0.6737 0.6737 0.6895 0.6895 0.6895 0.7053 0.7053 0.7053 0.7211 0.7211 0.7211 0.7368 0.7421 0.7421 0.7526 0.7526 0.7632 0.7684 0.7684 0.7789 0.7789 0.7789 0.7947 0.8000 0.8053 0.8053 0.8053 0.8053 0.8263 0.8263 0.8263 0.8421 0.8474 0.8474 0.8579 0.8632 0.8632 0.8632 0.8789 0.8789 0.8789 0.8947 0.8947 0.8947 0.8947 0.8947 0.9211 0.9211 0.9211 0.9368 0.9421 0.9421 0.9421 0.9579 0.9579 0.9579 0.9737 0.9737 0.9842 0.9842 0.9947 0.9947}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.4.7.4 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( PARTITION BY b%10 ORDER BY b RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0769 0.1538 0.1538 0.1538 0.3846 0.4615 0.5385 0.6154 0.6923 0.6923 0.8462 0.8462 0.8462 0.0000 0.0000 0.1000 0.1000 0.2000 0.2000 0.3000 0.3000 0.4000 0.4000 0.5000 0.5500 0.5500 0.6500 0.6500 0.6500 0.8000 0.8000 0.8000 0.8000 0.8000 0.0000 0.0000 0.1333 0.1333 0.1333 0.3333 0.3333 0.4667 0.5333 0.6000 0.6667 0.6667 0.8000 0.8000 0.8000 1.0000 0.0000 0.0000 0.1000 0.1000 0.2000 0.2000 0.3000 0.3000 0.3000 0.3000 0.5000 0.5000 0.6000 0.6500 0.7000 0.7000 0.7000 0.8500 0.9000 0.9000 0.9000 0.0000 0.0556 0.1111 0.1667 0.1667 0.1667 0.1667 0.3889 0.3889 0.5000 0.5556 0.6111 0.6111 0.6111 0.7778 0.7778 0.7778 0.7778 1.0000 0.0000 0.0500 0.0500 0.0500 0.2000 0.2500 0.2500 0.3500 0.3500 0.4500 0.4500 0.4500 0.6000 0.6000 0.6000 0.7500 0.7500 0.7500 0.9000 0.9000 0.9000 0.0000 0.0500 0.0500 0.0500 0.2000 0.2000 0.3000 0.3000 0.3000 0.3000 0.5000 0.5000 0.6000 0.6000 0.6000 0.7500 0.8000 0.8500 0.9000 0.9000 0.9000 0.0000 0.0000 0.0000 0.1579 0.2105 0.2105 0.3158 0.3158 0.4211 0.4211 0.4211 0.4211 0.6316 0.6842 0.7368 0.7368 0.8421 0.8421 0.9474 0.9474 0.0000 0.0000 0.0000 0.2000 0.2667 0.2667 0.4000 0.4000 0.4000 0.4000 0.6667 0.7333 0.7333 0.8667 0.9333 0.9333 0.0000 0.0000 0.0000 0.1429 0.1905 0.1905 0.1905 0.3333 0.3333 0.3333 0.4762 0.5238 0.5238 0.5238 0.5238 0.7143 0.7619 0.8095 0.8095 0.8095 0.9524 0.9524}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.4.7.5 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY b%10 RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.4.7.6 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER (PARTITION BY b%2 ORDER BY b%10 RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.4.8.1 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0052 0.0105 0.0157 0.0209 0.0262 0.0314 0.0366 0.0419 0.0471 0.0524 0.0576 0.0628 0.0681 0.0733 0.0785 0.0838 0.0890 0.0942 0.0995 0.1047 0.1099 0.1152 0.1204 0.1257 0.1309 0.1361 0.1414 0.1466 0.1518 0.1571 0.1623 0.1675 0.1728 0.1780 0.1832 0.1885 0.1937 0.1990 0.2042 0.2094 0.2147 0.2199 0.2251 0.2304 0.2356 0.2408 0.2461 0.2513 0.2565 0.2618 0.2670 0.2723 0.2775 0.2827 0.2880 0.2932 0.2984 0.3037 0.3089 0.3141 0.3194 0.3246 0.3298 0.3351 0.3403 0.3455 0.3508 0.3560 0.3613 0.3665 0.3717 0.3770 0.3822 0.3874 0.3927 0.3979 0.4031 0.4084 0.4136 0.4188 0.4241 0.4293 0.4346 0.4398 0.4450 0.4503 0.4555 0.4607 0.4660 0.4712 0.4764 0.4817 0.4869 0.4921 0.4974 0.5026 0.5079 0.5131 0.5183 0.5236 0.5288 0.5340 0.5393 0.5445 0.5497 0.5550 0.5602 0.5654 0.5707 0.5759 0.5812 0.5864 0.5916 0.5969 0.6021 0.6073 0.6126 0.6178 0.6230 0.6283 0.6335 0.6387 0.6440 0.6492 0.6545 0.6597 0.6649 0.6702 0.6754 0.6806 0.6859 0.6911 0.6963 0.7016 0.7068 0.7120 0.7173 0.7225 0.7277 0.7330 0.7382 0.7435 0.7487 0.7539 0.7592 0.7644 0.7696 0.7749 0.7801 0.7853 0.7906 0.7958 0.8010 0.8063 0.8115 0.8168 0.8220 0.8272 0.8325 0.8377 0.8429 0.8482 0.8534 0.8586 0.8639 0.8691 0.8743 0.8796 0.8848 0.8901 0.8953 0.9005 0.9058 0.9110 0.9162 0.9215 0.9267 0.9319 0.9372 0.9424 0.9476 0.9529 0.9581 0.9634 0.9686 0.9738 0.9791 0.9843 0.9895 0.9948 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.4.8.2 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%10 ORDER BY a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0714 0.1429 0.2143 0.2857 0.3571 0.4286 0.5000 0.5714 0.6429 0.7143 0.7857 0.8571 0.9286 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0625 0.1250 0.1875 0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250 0.6875 0.7500 0.8125 0.8750 0.9375 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0526 0.1053 0.1579 0.2105 0.2632 0.3158 0.3684 0.4211 0.4737 0.5263 0.5789 0.6316 0.6842 0.7368 0.7895 0.8421 0.8947 0.9474 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0625 0.1250 0.1875 0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250 0.6875 0.7500 0.8125 0.8750 0.9375 1.0000 0.0455 0.0909 0.1364 0.1818 0.2273 0.2727 0.3182 0.3636 0.4091 0.4545 0.5000 0.5455 0.5909 0.6364 0.6818 0.7273 0.7727 0.8182 0.8636 0.9091 0.9545 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.4.8.3 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY b RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0105 0.0105 0.0209 0.0209 0.0314 0.0314 0.0366 0.0419 0.0471 0.0628 0.0628 0.0628 0.0785 0.0785 0.0785 0.0942 0.0942 0.0942 0.0995 0.1099 0.1099 0.1257 0.1257 0.1257 0.1361 0.1361 0.1414 0.1571 0.1571 0.1571 0.1728 0.1728 0.1728 0.1780 0.1832 0.1885 0.1990 0.1990 0.2094 0.2094 0.2199 0.2199 0.2251 0.2304 0.2408 0.2408 0.2513 0.2513 0.2565 0.2723 0.2723 0.2723 0.2880 0.2880 0.2880 0.2984 0.2984 0.3037 0.3246 0.3246 0.3246 0.3246 0.3455 0.3455 0.3455 0.3455 0.3560 0.3560 0.3770 0.3770 0.3770 0.3770 0.3874 0.3874 0.3979 0.3979 0.4136 0.4136 0.4136 0.4188 0.4293 0.4293 0.4346 0.4450 0.4450 0.4555 0.4555 0.4660 0.4660 0.4869 0.4869 0.4869 0.4869 0.4921 0.4974 0.5026 0.5079 0.5131 0.5183 0.5288 0.5288 0.5445 0.5445 0.5445 0.5497 0.5707 0.5707 0.5707 0.5707 0.5916 0.5916 0.5916 0.5916 0.5969 0.6073 0.6073 0.6178 0.6178 0.6230 0.6283 0.6440 0.6440 0.6440 0.6492 0.6545 0.6597 0.6649 0.6702 0.6859 0.6859 0.6859 0.7016 0.7016 0.7016 0.7173 0.7173 0.7173 0.7330 0.7330 0.7330 0.7382 0.7487 0.7487 0.7592 0.7592 0.7644 0.7749 0.7749 0.7906 0.7906 0.7906 0.7958 0.8010 0.8220 0.8220 0.8220 0.8220 0.8377 0.8377 0.8377 0.8429 0.8534 0.8534 0.8586 0.8743 0.8743 0.8743 0.8901 0.8901 0.8901 0.9162 0.9162 0.9162 0.9162 0.9162 0.9319 0.9319 0.9319 0.9372 0.9529 0.9529 0.9529 0.9686 0.9686 0.9686 0.9791 0.9791 0.9895 0.9895 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.4.8.4 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%10 ORDER BY b RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0714 0.1429 0.3571 0.3571 0.3571 0.4286 0.5000 0.5714 0.6429 0.7857 0.7857 1.0000 1.0000 1.0000 0.0952 0.0952 0.1905 0.1905 0.2857 0.2857 0.3810 0.3810 0.4762 0.4762 0.5238 0.6190 0.6190 0.7619 0.7619 0.7619 1.0000 1.0000 1.0000 1.0000 1.0000 0.1250 0.1250 0.3125 0.3125 0.3125 0.4375 0.4375 0.5000 0.5625 0.6250 0.7500 0.7500 0.9375 0.9375 0.9375 1.0000 0.0952 0.0952 0.1905 0.1905 0.2857 0.2857 0.4762 0.4762 0.4762 0.4762 0.5714 0.5714 0.6190 0.6667 0.8095 0.8095 0.8095 0.8571 1.0000 1.0000 1.0000 0.0526 0.1053 0.1579 0.3684 0.3684 0.3684 0.3684 0.4737 0.4737 0.5263 0.5789 0.7368 0.7368 0.7368 0.9474 0.9474 0.9474 0.9474 1.0000 0.0476 0.1905 0.1905 0.1905 0.2381 0.3333 0.3333 0.4286 0.4286 0.5714 0.5714 0.5714 0.7143 0.7143 0.7143 0.8571 0.8571 0.8571 1.0000 1.0000 1.0000 0.0476 0.1905 0.1905 0.1905 0.2857 0.2857 0.4762 0.4762 0.4762 0.4762 0.5714 0.5714 0.7143 0.7143 0.7143 0.7619 0.8095 0.8571 1.0000 1.0000 1.0000 0.1500 0.1500 0.1500 0.2000 0.3000 0.3000 0.4000 0.4000 0.6000 0.6000 0.6000 0.6000 0.6500 0.7000 0.8000 0.8000 0.9000 0.9000 1.0000 1.0000 0.1875 0.1875 0.1875 0.2500 0.3750 0.3750 0.6250 0.6250 0.6250 0.6250 0.6875 0.8125 0.8125 0.8750 1.0000 1.0000 0.1364 0.1364 0.1364 0.1818 0.3182 0.3182 0.3182 0.4545 0.4545 0.4545 0.5000 0.6818 0.6818 0.6818 0.6818 0.7273 0.7727 0.9091 0.9091 0.9091 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.4.8.5 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY b%10 RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.4.8.6 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%2 ORDER BY b%10 RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.4.8.1 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(100) OVER ( ORDER BY a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 88.0000 89.0000 89.0000 90.0000 90.0000 91.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.4.8.2 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(101) OVER ( PARTITION BY b%10 ORDER BY a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 22.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.4.8.3 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(102) OVER ( ORDER BY b,a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 88.0000 89.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.4.8.4 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(103) OVER ( PARTITION BY b%10 ORDER BY b,a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 22.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.4.8.5 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(104) OVER ( ORDER BY b%10,a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000 103.0000 104.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.4.8.6 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(105) OVER (PARTITION BY b%2,a ORDER BY b%10 RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.4.8.7 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(105) OVER ( RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 88.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000 103.0000 104.0000 105.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+do_execsql_test 1.4.9.1 {
+  SELECT last_value(a+b) OVER ( ORDER BY a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207}
+
+do_execsql_test 1.4.9.2 {
+  SELECT last_value(a+b) OVER ( PARTITION BY b%10 ORDER BY a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {223   223   223   223   223   223   223   223   223   223   223   223   223
+  223   210   210   210   210   210   210   210   210   210   210   210   210
+  210   210   210   210   210   210   210   210   210   280   280   280   280
+  280   280   280   280   280   280   280   280   280   280   280   280   279
+  279   279   279   279   279   279   279   279   279   279   279   279   279
+  279   279   279   279   279   279   279   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  274   274   274   274   274   274   274   274   274   274   274   274   274
+  274   274   274   274   274   274   274   274   212   212   212   212   212
+  212   212   212   212   212   212   212   212   212   212   212   212   212
+  212   212   212   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   232   232   232
+  232   232   232   232   232   232   232   232   232   232   232   232   232
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229}
+
+do_execsql_test 1.4.9.3 {
+  SELECT last_value(a+b) OVER ( ORDER BY b,a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276}
+
+do_execsql_test 1.4.9.4 {
+  SELECT last_value(a+b) OVER ( PARTITION BY b%10 ORDER BY b,a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {240   240   240   240   240   240   240   240   240   240   240   240   240
+  240   263   263   263   263   263   263   263   263   263   263   263   263
+  263   263   263   263   263   263   263   263   263   280   280   280   280
+  280   280   280   280   280   280   280   280   280   280   280   280   252
+  252   252   252   252   252   252   252   252   252   252   252   252   252
+  252   252   252   252   252   252   252   171   171   171   171   171   171
+  171   171   171   171   171   171   171   171   171   171   171   171   171
+  274   274   274   274   274   274   274   274   274   274   274   274   274
+  274   274   274   274   274   274   274   274   226   226   226   226   226
+  226   226   226   226   226   226   226   226   226   226   226   226   226
+  226   226   226   124   124   124   124   124   124   124   124   124   124
+  124   124   124   124   124   124   124   124   124   124   198   198   198
+  198   198   198   198   198   198   198   198   198   198   198   198   198
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276}
+
+do_execsql_test 1.4.9.5 {
+  SELECT last_value(a+b) OVER ( ORDER BY b%10,a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229}
+
+do_execsql_test 1.4.9.6 {
+  SELECT last_value(a+b) OVER (PARTITION BY b%2,a ORDER BY b%10 RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING) FROM t2
+} {108   52   83   79   65   26   70   103   80   36   116   51   52   128
+  117   71   63   84   109   78   147   88   121   106   124   85   107   171
+  150   80   171   120   109   158   87   168   173   162   156   195   198
+  177   124   121   134   141   210   157   132   161   218   226   191   179
+  138   214   212   172   173   229   240   187   210   227   228   223   225
+  179   182   231   207   209   212   239   234   213   234   269   196   271
+  235   250   223   232   229   280   99   92   72   55   109   120   119
+  50   124   96   59   124   110   57   130   103   74   87   48   105   136
+  131   133   92   109   57   146   113   74   150   87   110   65   110
+  145   161   156   114   111   136   147   173   124   132   101   154   167
+  190   161   110   102   123   169   140   111   180   119   160   197   152
+  146   147   132   213   193   200   136   175   188   187   208   211   144
+  223   196   170   202   163   184   195   200   163   191   252   235   243
+  172   187   202   179   261   263   206   189   276   181   274   249   221
+  210   229   279   224   216   207}
+
+do_execsql_test 1.4.10.1 {
+  SELECT nth_value(b,b+1) OVER (ORDER BY a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING) FROM t2
+} {96   9   11   89   32   53   91   30   51   56   54   73   22   59   75
+  74   78   8   16   65   15   8   31   87   90   12   32   96   74   76   37
+  85   90   15   35   2   60   36   75   9   51   47   63   51   90   26   42
+  26   8   76   80   90   37   87   56   79   5   87   8   2   39   73   64
+  36   90   72   78   36   73   51   33   20   41   2   26   37   33   8   14
+  33   81   55   1   9   12   39   64   87   72   34   82   21   34   99   62
+  74   41   69   22   75   27   58   8   79   77   26   26   55   {}   29
+  30   7   {}   66   55   2   34   64   {}   33   {}   44   84   {}   {}   95
+  85   19   {}   83   {}   91   {}   {}   9   50   91   33   34   {}   {}
+  84   {}   7   9   {}   {}   {}   44   {}   {}   {}   {}   91   84   {}   95
+  95   52   {}   {}   {}   {}   {}   21   {}   {}   {}   58   {}   {}   {}
+  {}   {}   {}   {}   83   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}}
+
+do_execsql_test 1.4.10.2 {
+  SELECT nth_value(b,b+1) OVER (PARTITION BY b%10 ORDER BY a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   81   {}   {}   {}   21   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   62   {}   {}   {}   12   {}   {}   {}   72
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   53   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   34   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   95   {}   {}   {}   {}   {}   {}   85   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   56   {}   36   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   57   {}   {}   {}   {}   {}   7   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   8   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.4.10.3 {
+  SELECT nth_value(b,b+1) OVER ( ORDER BY b,a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   3   5   6   7   8   8   9   9   10   11   12   12   13   13
+  14   15   16   16   17   19   20   21   22   23   24   25   26   27   27
+  28   29   30   31   32   33   33   33   34   34   35   36   36   36   37
+  38   39   39   40   41   42   43   43   44   46   47   47   47   49   50
+  52   53   54   55   56   56   57   58   58   58   59   59   59   60   61
+  62   62   64   65   65   67   69   70   72   72   73   74   74   75   75
+  75   77   78   80   81   81   83   84   84   85   85   85   87   88   89
+  89   89   90   90   91   91   91   93   93   94   95   95   96   97   97
+  98   99   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.4.10.4 {
+  SELECT nth_value(b,b+1) OVER ( PARTITION BY b%10 ORDER BY b,a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {80   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   1
+  11   81   81   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   12   12   72   82   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   13   23   73   73   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   34   84   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   35   85   85   95   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   36   86   96   96   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   37   47
+  47   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   58   58   68   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   39   49   59   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.4.10.5 {
+  SELECT nth_value(b,b+1) OVER ( ORDER BY b%10,a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {34   72   91   74   21   55   23   94   84   95   2   13   61   22   55
+  55   94   85   75   81   65   73   74   21   72   12   94   33   63   73
+  72   96   36   76   3   25   62   3   73   34   12   46   43   93   72   16
+  86   63   15   65   36   77   24   57   25   53   95   34   95   16   97
+  74   97   67   25   98   44   34   65   54   5   68   96   28   47   95
+  34   39   8   38   6   46   96   28   47   95   56   39   99   97   76   8
+  26   9   79   27   95   16   29   {}   58   58   77   85   56   {}   98
+  29   {}   19   96   {}   {}   78   56   98   36   97   {}   89   89   29
+  47   78   {}   {}   {}   38   68   58   {}   58   38   {}   98   {}   {}
+  {}   39   57   9   {}   79   {}   {}   7   {}   {}   {}   9   29   38   78
+  {}   {}   {}   8   39   {}   {}   {}   {}   59   {}   99   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.4.10.6 {
+  SELECT nth_value(b,b+1) OVER (PARTITION BY b%2,a ORDER BY b%10 RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.4.11.1 {
+  SELECT first_value(b) OVER (ORDER BY a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING) FROM t2
+} {89   81   96   59   38   68   39   62   91   46   6   99   97   27   46
+  78   54   97   8   67   29   93   84   77   23   16   16   93   65   35
+  47   7   86   74   61   91   85   24   85   43   59   12   32   56   3   91
+  22   90   55   15   28   89   25   47   1   56   40   43   56   16   75
+  36   89   98   76   81   4   94   42   30   78   33   29   53   63   2   87
+  37   80   84   72   41   9   61   73   95   65   13   58   96   98   1   21
+  74   65   35   5   73   11   51   87   41   12   8   20   31   31   15   95
+  22   73   79   88   34   8   11   49   34   90   59   96   60   55   75
+  77   44   2   7   85   57   74   29   70   59   19   39   26   26   47   80
+  90   36   58   47   9   72   72   66   33   93   75   64   81   9   23   37
+  13   12   14   62   91   36   91   33   15   34   36   99   3   95   69
+  58   52   30   50   84   10   84   33   21   39   44   58   30   38   34
+  83   27   82   17   7}
+
+do_execsql_test 1.4.11.2 {
+  SELECT first_value(b) OVER (PARTITION BY b%10 ORDER BY a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING) FROM t2
+} {90   40   30   80   20   90   60   70   80   90   30   50   10   30   81
+  91   61   91   91   1   81   41   61   1   21   11   51   41   31   31   11
+  81   91   91   21   62   12   32   22   42   2   72   12   22   2   72   72
+  12   62   52   82   93   23   93   43   3   43   33   53   63   73   13
+  73   73   33   93   23   13   33   3   33   83   54   84   74   24   4   94
+  84   74   34   34   44   74   64   14   34   84   84   44   34   65   35
+  85   85   55   15   25   75   95   65   65   35   5   15   95   55   75
+  85   75   15   95   96   46   6   46   16   16   86   56   56   56   16
+  36   76   96   96   26   26   36   66   36   36   97   27   97   67   77
+  47   7   47   87   37   87   77   7   57   47   47   37   27   17   7   38
+  68   78   8   28   98   78   58   98   8   88   8   58   58   58   38   89
+  59   39   99   29   59   89   89   29   9   79   49   59   29   59   19
+  39   9   9   99   69   39}
+
+do_execsql_test 1.4.11.3 {
+  SELECT first_value(b) OVER ( ORDER BY b,a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   2   2   3   3   4   5   6   7   7   7   8   8   8   9   9   9   10
+  11   11   12   12   12   13   13   14   15   15   15   16   16   16   17
+  19   20   21   21   22   22   23   23   24   25   26   26   27   27   28
+  29   29   29   30   30   30   31   31   32   33   33   33   33   34   34
+  34   34   35   35   36   36   36   36   37   37   38   38   39   39   39
+  40   41   41   42   43   43   44   44   46   46   47   47   47   47   49
+  50   51   52   53   54   55   55   56   56   56   57   58   58   58   58
+  59   59   59   59   60   61   61   62   62   63   64   65   65   65   66
+  67   68   69   70   72   72   72   73   73   73   74   74   74   75   75
+  75   76   77   77   78   78   79   80   80   81   81   81   82   83   84
+  84   84   84   85   85   85   86   87   87   88   89   89   89   90   90
+  90   91   91   91   91   91   93   93   93   94   95   95   95   96   96
+  96   97   97   98   98   99   99}
+
+do_execsql_test 1.4.11.4 {
+  SELECT first_value(b) OVER ( PARTITION BY b%10 ORDER BY b,a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {10   20   30   30   30   40   50   60   70   80   80   90   90   90   1   1
+  11   11   21   21   31   31   41   41   51   61   61   81   81   81   91
+  91   91   91   91   2   2   12   12   12   22   22   32   42   52   62   62
+  72   72   72   82   3   3   13   13   23   23   33   33   33   33   43   43
+  53   63   73   73   73   83   93   93   93   4   14   24   34   34   34
+  34   44   44   54   64   74   74   74   84   84   84   84   94   5   15
+  15   15   25   35   35   55   55   65   65   65   75   75   75   85   85
+  85   95   95   95   6   16   16   16   26   26   36   36   36   36   46
+  46   56   56   56   66   76   86   96   96   96   7   7   7   17   27   27
+  37   37   47   47   47   47   57   67   77   77   87   87   97   97   8   8
+  8   28   38   38   58   58   58   58   68   78   78   88   98   98   9   9
+  9   19   29   29   29   39   39   39   49   59   59   59   59   69   79
+  89   89   89   99   99}
+
+do_execsql_test 1.4.11.5 {
+  SELECT first_value(b) OVER ( ORDER BY b%10,a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {90   40   30   80   20   90   60   70   80   90   30   50   10   30   81
+  91   61   91   91   1   81   41   61   1   21   11   51   41   31   31   11
+  81   91   91   21   62   12   32   22   42   2   72   12   22   2   72   72
+  12   62   52   82   93   23   93   43   3   43   33   53   63   73   13
+  73   73   33   93   23   13   33   3   33   83   54   84   74   24   4   94
+  84   74   34   34   44   74   64   14   34   84   84   44   34   65   35
+  85   85   55   15   25   75   95   65   65   35   5   15   95   55   75
+  85   75   15   95   96   46   6   46   16   16   86   56   56   56   16
+  36   76   96   96   26   26   36   66   36   36   97   27   97   67   77
+  47   7   47   87   37   87   77   7   57   47   47   37   27   17   7   38
+  68   78   8   28   98   78   58   98   8   88   8   58   58   58   38   89
+  59   39   99   29   59   89   89   29   9   79   49   59   29   59   19
+  39   9   9   99   69   39}
+
+do_execsql_test 1.4.11.6 {
+  SELECT first_value(b) OVER (PARTITION BY b%2,a ORDER BY b%10 RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING) FROM t2
+} {96   38   68   62   46   6   46   78   54   8   84   16   16   86   74   24
+  12   32   56   22   90   28   56   40   56   16   36   98   76   4   94
+  42   30   78   2   80   84   72   58   96   98   74   12   8   20   22   88
+  34   8   34   90   96   60   44   2   74   70   26   26   80   90   36   58
+  72   72   66   64   12   14   62   36   34   36   58   52   30   50   84
+  10   84   44   58   30   38   34   82   89   81   59   39   91   99   97
+  27   97   67   29   93   77   23   93   65   35   47   7   61   91   85
+  85   43   59   3   91   55   15   89   25   47   1   43   75   89   81   33
+  29   53   63   87   37   41   9   61   73   95   65   13   1   21   65   35
+  5   73   11   51   87   41   31   31   15   95   73   79   11   49   59
+  55   75   77   7   85   57   29   59   19   39   47   47   9   33   93   75
+  81   9   23   37   13   91   91   33   15   99   3   95   69   33   21   39
+  83   27   17   7}
+
+do_execsql_test 1.4.12.1 {
+  SELECT lead(b,b) OVER (ORDER BY a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING) FROM t2
+} {96   9   11   89   32   53   91   30   51   56   54   73   22   59   75
+  74   78   8   16   65   15   8   31   87   90   12   32   96   74   76   37
+  85   90   15   35   2   60   36   75   9   51   47   63   51   90   26   42
+  26   8   76   80   90   37   87   56   79   5   87   8   2   39   73   64
+  36   90   72   78   36   73   51   33   20   41   2   26   37   33   8   14
+  33   81   55   1   9   12   39   64   87   72   34   82   21   34   99   62
+  74   41   69   22   75   27   58   8   79   77   26   26   55   {}   29
+  30   7   {}   66   55   2   34   64   {}   33   {}   44   84   {}   {}   95
+  85   19   {}   83   {}   91   {}   {}   9   50   91   33   34   {}   {}
+  84   {}   7   9   {}   {}   {}   44   {}   {}   {}   {}   91   84   {}   95
+  95   52   {}   {}   {}   {}   {}   21   {}   {}   {}   58   {}   {}   {}
+  {}   {}   {}   {}   83   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}}
+
+do_execsql_test 1.4.12.2 {
+  SELECT lead(b,b) OVER (PARTITION BY b%10 ORDER BY a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   81   {}   {}   {}   21   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   62   {}   {}   {}   12   {}   {}   {}   72
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   53   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   34   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   95   {}   {}   {}   {}   {}   {}   85   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   56   {}   36   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   57   {}   {}   {}   {}   {}   7   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   8   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.4.12.3 {
+  SELECT lead(b,b) OVER ( ORDER BY b,a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   3   5   6   7   8   8   9   9   10   11   12   12   13   13
+  14   15   16   16   17   19   20   21   22   23   24   25   26   27   27
+  28   29   30   31   32   33   33   33   34   34   35   36   36   36   37
+  38   39   39   40   41   42   43   43   44   46   47   47   47   49   50
+  52   53   54   55   56   56   57   58   58   58   59   59   59   60   61
+  62   62   64   65   65   67   69   70   72   72   73   74   74   75   75
+  75   77   78   80   81   81   83   84   84   85   85   85   87   88   89
+  89   89   90   90   91   91   91   93   93   94   95   95   96   97   97
+  98   99   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.4.12.4 {
+  SELECT lead(b,b) OVER ( PARTITION BY b%10 ORDER BY b,a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {80   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   1
+  11   81   81   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   12   12   72   82   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   13   23   73   73   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   34   84   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   35   85   85   95   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   36   86   96   96   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   37   47
+  47   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   58   58   68   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   39   49   59   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.4.12.5 {
+  SELECT lead(b,b) OVER ( ORDER BY b%10,a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {34   72   91   74   21   55   23   94   84   95   2   13   61   22   55
+  55   94   85   75   81   65   73   74   21   72   12   94   33   63   73
+  72   96   36   76   3   25   62   3   73   34   12   46   43   93   72   16
+  86   63   15   65   36   77   24   57   25   53   95   34   95   16   97
+  74   97   67   25   98   44   34   65   54   5   68   96   28   47   95
+  34   39   8   38   6   46   96   28   47   95   56   39   99   97   76   8
+  26   9   79   27   95   16   29   {}   58   58   77   85   56   {}   98
+  29   {}   19   96   {}   {}   78   56   98   36   97   {}   89   89   29
+  47   78   {}   {}   {}   38   68   58   {}   58   38   {}   98   {}   {}
+  {}   39   57   9   {}   79   {}   {}   7   {}   {}   {}   9   29   38   78
+  {}   {}   {}   8   39   {}   {}   {}   {}   59   {}   99   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.4.12.6 {
+  SELECT lead(b,b) OVER (PARTITION BY b%2,a ORDER BY b%10 RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.4.13.1 {
+  SELECT lag(b,b) OVER (ORDER BY a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   38   {}   {}   {}   {}
+  {}   {}   {}   6   {}   {}   {}   {}   {}   81   46   6   {}   {}   {}   {}
+  23   {}   {}   {}   {}   {}   27   {}   {}   {}   35   6   {}   12   {}
+  23   {}   {}   61   84   {}   93   39   47   {}   54   46   96   56   {}
+  16   {}   {}   {}   {}   89   {}   16   43   {}   85   56   29   99   53
+  {}   59   {}   {}   91   59   53   84   99   {}   93   63   47   {}   {}
+  98   33   67   35   75   1   23   13   55   27   75   98   35   73   63   2
+  21   27   13   24   86   23   84   31   20   94   61   65   75   23   36
+  94   55   90   41   77   96   56   29   40   12   89   63   11   5   73
+  79   1   16   28   31   73   5   39   53   63   41   11   40   2   13   33
+  9   29   90   47   72   9   73   30   44   33   74   93   29   74   42   34
+  63   41   34   96   47   77   1   36   74   72   14   36   26   77   9   72
+  64   8   91   31   52   30}
+
+do_execsql_test 1.4.13.2 {
+  SELECT lag(b,b) OVER (PARTITION BY b%10 ORDER BY a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   61   {}   81   {}   {}   {}   {}
+  1   {}   {}   {}   {}   {}   {}   {}   {}   {}   22   {}   {}   {}   12
+  {}   {}   62   {}   {}   {}   {}   {}   {}   {}   23   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   43   {}   23   {}   {}   {}   {}   {}
+  {}   54   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   75   {}
+  {}   {}   {}   {}   {}   55   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   47   {}   {}   {}   {}
+  {}   27   7   {}   {}   {}   {}   {}   {}   {}   {}   {}   68   {}   8   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   89   {}   {}
+  {}   {}   {}   {}   {}   29   9   {}   {}   {}}
+
+do_execsql_test 1.4.13.3 {
+  SELECT lag(b,b) OVER ( ORDER BY b,a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {{}   1   1   1   1   2   2   2   2   2   2   3   3   3   4   4   5   6   6
+  6   7   7   7   7   7   8   8   8   8   8   8   9   9   9   9   9   9   9
+  9   9   9   10   10   10   10   11   11   11   11   11   12   12   12   12
+  13   13   13   13   13   14   15   15   15   15   16   16   16   16   16
+  17   19   20   20   21   21   21   21   22   22   22   22   23   23   23
+  23   23   24   23   24   24   25   26   26   26   26   26   26   26   26
+  26   26   26   27   27   27   27   28   29   29   29   29   30   30   30
+  30   30   30   31   31   31   31   31   32   32   32   32   32   32   31
+  32   33   33   33   33   33   33   34   34   34   34   34   34   34   34
+  35   35   35   35   35   36   36   36   36   36   36   36   37   37   37
+  38   38   38   38   38   38   39   39   39   39   40   40   41   41   42
+  43   42   43   43   43   43   44   44   44   46   46   46   47   47   47
+  47   47}
+
+do_execsql_test 1.4.13.4 {
+  SELECT lag(b,b) OVER ( PARTITION BY b%10 ORDER BY b,a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  1   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.4.13.5 {
+  SELECT lag(b,b) OVER ( ORDER BY b%10,a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   61   80   81   {}   {}   {}   {}
+  1   {}   {}   {}   30   {}   21   90   61   {}   22   {}   11   41   12
+  {}   {}   62   {}   {}   {}   {}   31   {}   50   23   30   21   90   {}
+  {}   62   {}   {}   81   {}   22   43   62   23   32   {}   91   {}   90
+  93   54   {}   {}   90   72   12   22   90   81   83   23   80   20   72
+  43   51   33   80   90   2   34   54   1   20   62   12   13   75   44   30
+  93   91   1   21   55   61   61   13   85   3   65   65   91   73   33   93
+  55   84   62   31   11   65   35   85   33   55   15   12   75   22   3
+  73   65   36   85   43   95   43   13   47   44   65   65   96   36   27
+  7   46   34   94   47   36   73   34   35   73   68   24   8   75   85   75
+  66   34   95   36   84   77   46   34   84   47   89   65   36   16   38
+  76   58   57   29   9   44   56   17}
+
+do_execsql_test 1.4.13.6 {
+  SELECT lag(b,b) OVER (PARTITION BY b%2,a ORDER BY b%10 RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.4.14.1 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (ORDER BY a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING) FROM t2
+} {89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
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+  34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
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+  44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
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+  90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  33.21.39.44.58.30.38.34.83.27.82.17.7   21.39.44.58.30.38.34.83.27.82.17.7
+  39.44.58.30.38.34.83.27.82.17.7   44.58.30.38.34.83.27.82.17.7
+  58.30.38.34.83.27.82.17.7   30.38.34.83.27.82.17.7   38.34.83.27.82.17.7
+  34.83.27.82.17.7   83.27.82.17.7   27.82.17.7   82.17.7   17.7   7}
+
+do_execsql_test 1.4.14.2 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (PARTITION BY b%10 ORDER BY a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING) FROM t2
+} {90.40.30.80.20.90.60.70.80.90.30.50.10.30
+  40.30.80.20.90.60.70.80.90.30.50.10.30
+  30.80.20.90.60.70.80.90.30.50.10.30   80.20.90.60.70.80.90.30.50.10.30
+  20.90.60.70.80.90.30.50.10.30   90.60.70.80.90.30.50.10.30
+  60.70.80.90.30.50.10.30   70.80.90.30.50.10.30   80.90.30.50.10.30
+  90.30.50.10.30   30.50.10.30   50.10.30   10.30   30
+  81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  61.1.21.11.51.41.31.31.11.81.91.91.21   1.21.11.51.41.31.31.11.81.91.91.21
+  21.11.51.41.31.31.11.81.91.91.21   11.51.41.31.31.11.81.91.91.21
+  51.41.31.31.11.81.91.91.21   41.31.31.11.81.91.91.21   31.31.11.81.91.91.21
+  31.11.81.91.91.21   11.81.91.91.21   81.91.91.21   91.91.21   91.21   21
+  62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82
+  12.32.22.42.2.72.12.22.2.72.72.12.62.52.82
+  32.22.42.2.72.12.22.2.72.72.12.62.52.82
+  22.42.2.72.12.22.2.72.72.12.62.52.82   42.2.72.12.22.2.72.72.12.62.52.82
+  2.72.12.22.2.72.72.12.62.52.82   72.12.22.2.72.72.12.62.52.82
+  12.22.2.72.72.12.62.52.82   22.2.72.72.12.62.52.82   2.72.72.12.62.52.82
+  72.72.12.62.52.82   72.12.62.52.82   12.62.52.82   62.52.82   52.82   82
+  93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  33.53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  63.73.13.73.73.33.93.23.13.33.3.33.83   73.13.73.73.33.93.23.13.33.3.33.83
+  13.73.73.33.93.23.13.33.3.33.83   73.73.33.93.23.13.33.3.33.83
+  73.33.93.23.13.33.3.33.83   33.93.23.13.33.3.33.83   93.23.13.33.3.33.83
+  23.13.33.3.33.83   13.33.3.33.83   33.3.33.83   3.33.83   33.83   83
+  54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34
+  84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34
+  74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34
+  24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34
+  4.94.84.74.34.34.44.74.64.14.34.84.84.44.34
+  94.84.74.34.34.44.74.64.14.34.84.84.44.34
+  84.74.34.34.44.74.64.14.34.84.84.44.34
+  74.34.34.44.74.64.14.34.84.84.44.34   34.34.44.74.64.14.34.84.84.44.34
+  34.44.74.64.14.34.84.84.44.34   44.74.64.14.34.84.84.44.34
+  74.64.14.34.84.84.44.34   64.14.34.84.84.44.34   14.34.84.84.44.34
+  34.84.84.44.34   84.84.44.34   84.44.34   44.34   34
+  65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  95.65.65.35.5.15.95.55.75.85.75.15.95   65.65.35.5.15.95.55.75.85.75.15.95
+  65.35.5.15.95.55.75.85.75.15.95   35.5.15.95.55.75.85.75.15.95
+  5.15.95.55.75.85.75.15.95   15.95.55.75.85.75.15.95   95.55.75.85.75.15.95
+  55.75.85.75.15.95   75.85.75.15.95   85.75.15.95   75.15.95   15.95   95
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  56.56.16.36.76.96.96.26.26.36.66.36.36
+  56.16.36.76.96.96.26.26.36.66.36.36   16.36.76.96.96.26.26.36.66.36.36
+  36.76.96.96.26.26.36.66.36.36   76.96.96.26.26.36.66.36.36
+  96.96.26.26.36.66.36.36   96.26.26.36.66.36.36   26.26.36.66.36.36
+  26.36.66.36.36   36.66.36.36   66.36.36   36.36   36
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  47.87.37.87.77.7.57.47.47.37.27.17.7   87.37.87.77.7.57.47.47.37.27.17.7
+  37.87.77.7.57.47.47.37.27.17.7   87.77.7.57.47.47.37.27.17.7
+  77.7.57.47.47.37.27.17.7   7.57.47.47.37.27.17.7   57.47.47.37.27.17.7
+  47.47.37.27.17.7   47.37.27.17.7   37.27.17.7   27.17.7   17.7   7
+  38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38
+  68.78.8.28.98.78.58.98.8.88.8.58.58.58.38
+  78.8.28.98.78.58.98.8.88.8.58.58.58.38
+  8.28.98.78.58.98.8.88.8.58.58.58.38   28.98.78.58.98.8.88.8.58.58.58.38
+  98.78.58.98.8.88.8.58.58.58.38   78.58.98.8.88.8.58.58.58.38
+  58.98.8.88.8.58.58.58.38   98.8.88.8.58.58.58.38   8.88.8.58.58.58.38
+  88.8.58.58.58.38   8.58.58.58.38   58.58.58.38   58.58.38   58.38   38
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  9.79.49.59.29.59.19.39.9.9.99.69.39   79.49.59.29.59.19.39.9.9.99.69.39
+  49.59.29.59.19.39.9.9.99.69.39   59.29.59.19.39.9.9.99.69.39
+  29.59.19.39.9.9.99.69.39   59.19.39.9.9.99.69.39   19.39.9.9.99.69.39
+  39.9.9.99.69.39   9.9.99.69.39   9.99.69.39   99.69.39   69.39   39}
+
+do_execsql_test 1.4.14.3 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( ORDER BY b,a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
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+  81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  94.95.95.95.96.96.96.97.97.98.98.99.99
+  95.95.95.96.96.96.97.97.98.98.99.99   95.95.96.96.96.97.97.98.98.99.99
+  95.96.96.96.97.97.98.98.99.99   96.96.96.97.97.98.98.99.99
+  96.96.97.97.98.98.99.99   96.97.97.98.98.99.99   97.97.98.98.99.99
+  97.98.98.99.99   98.98.99.99   98.99.99   99.99   99}
+
+do_execsql_test 1.4.14.4 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( PARTITION BY b%10 ORDER BY b,a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {10.20.30.30.30.40.50.60.70.80.80.90.90.90
+  20.30.30.30.40.50.60.70.80.80.90.90.90
+  30.30.30.40.50.60.70.80.80.90.90.90   30.30.40.50.60.70.80.80.90.90.90
+  30.40.50.60.70.80.80.90.90.90   40.50.60.70.80.80.90.90.90
+  50.60.70.80.80.90.90.90   60.70.80.80.90.90.90   70.80.80.90.90.90
+  80.80.90.90.90   80.90.90.90   90.90.90   90.90   90
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  41.41.51.61.61.81.81.81.91.91.91.91.91
+  41.51.61.61.81.81.81.91.91.91.91.91   51.61.61.81.81.81.91.91.91.91.91
+  61.61.81.81.81.91.91.91.91.91   61.81.81.81.91.91.91.91.91
+  81.81.81.91.91.91.91.91   81.81.91.91.91.91.91   81.91.91.91.91.91
+  91.91.91.91.91   91.91.91.91   91.91.91   91.91   91
+  2.2.12.12.12.22.22.32.42.52.62.62.72.72.72.82
+  2.12.12.12.22.22.32.42.52.62.62.72.72.72.82
+  12.12.12.22.22.32.42.52.62.62.72.72.72.82
+  12.12.22.22.32.42.52.62.62.72.72.72.82
+  12.22.22.32.42.52.62.62.72.72.72.82   22.22.32.42.52.62.62.72.72.72.82
+  22.32.42.52.62.62.72.72.72.82   32.42.52.62.62.72.72.72.82
+  42.52.62.62.72.72.72.82   52.62.62.72.72.72.82   62.62.72.72.72.82
+  62.72.72.72.82   72.72.72.82   72.72.82   72.82   82
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  3.13.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  13.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  33.33.43.43.53.63.73.73.73.83.93.93.93
+  33.43.43.53.63.73.73.73.83.93.93.93   43.43.53.63.73.73.73.83.93.93.93
+  43.53.63.73.73.73.83.93.93.93   53.63.73.73.73.83.93.93.93
+  63.73.73.73.83.93.93.93   73.73.73.83.93.93.93   73.73.83.93.93.93
+  73.83.93.93.93   83.93.93.93   93.93.93   93.93   93
+  4.14.24.34.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  14.24.34.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  24.34.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  34.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  34.44.44.54.64.74.74.74.84.84.84.84.94
+  44.44.54.64.74.74.74.84.84.84.84.94   44.54.64.74.74.74.84.84.84.84.94
+  54.64.74.74.74.84.84.84.84.94   64.74.74.74.84.84.84.84.94
+  74.74.74.84.84.84.84.94   74.74.84.84.84.84.94   74.84.84.84.84.94
+  84.84.84.84.94   84.84.84.94   84.84.94   84.94   94
+  5.15.15.15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  15.15.15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  15.15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  55.65.65.65.75.75.75.85.85.85.95.95.95
+  65.65.65.75.75.75.85.85.85.95.95.95   65.65.75.75.75.85.85.85.95.95.95
+  65.75.75.75.85.85.85.95.95.95   75.75.75.85.85.85.95.95.95
+  75.75.85.85.85.95.95.95   75.85.85.85.95.95.95   85.85.85.95.95.95
+  85.85.95.95.95   85.95.95.95   95.95.95   95.95   95
+  6.16.16.16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  16.16.16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  16.16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  36.36.46.46.56.56.56.66.76.86.96.96.96
+  36.46.46.56.56.56.66.76.86.96.96.96   46.46.56.56.56.66.76.86.96.96.96
+  46.56.56.56.66.76.86.96.96.96   56.56.56.66.76.86.96.96.96
+  56.56.66.76.86.96.96.96   56.66.76.86.96.96.96   66.76.86.96.96.96
+  76.86.96.96.96   86.96.96.96   96.96.96   96.96   96
+  7.7.7.17.27.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  7.7.17.27.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  7.17.27.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  17.27.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  27.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  37.47.47.47.47.57.67.77.77.87.87.97.97
+  47.47.47.47.57.67.77.77.87.87.97.97   47.47.47.57.67.77.77.87.87.97.97
+  47.47.57.67.77.77.87.87.97.97   47.57.67.77.77.87.87.97.97
+  57.67.77.77.87.87.97.97   67.77.77.87.87.97.97   77.77.87.87.97.97
+  77.87.87.97.97   87.87.97.97   87.97.97   97.97   97
+  8.8.8.28.38.38.58.58.58.58.68.78.78.88.98.98
+  8.8.28.38.38.58.58.58.58.68.78.78.88.98.98
+  8.28.38.38.58.58.58.58.68.78.78.88.98.98
+  28.38.38.58.58.58.58.68.78.78.88.98.98
+  38.38.58.58.58.58.68.78.78.88.98.98   38.58.58.58.58.68.78.78.88.98.98
+  58.58.58.58.68.78.78.88.98.98   58.58.58.68.78.78.88.98.98
+  58.58.68.78.78.88.98.98   58.68.78.78.88.98.98   68.78.78.88.98.98
+  78.78.88.98.98   78.88.98.98   88.98.98   98.98   98
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  39.49.59.59.59.59.69.79.89.89.89.99.99
+  49.59.59.59.59.69.79.89.89.89.99.99   59.59.59.59.69.79.89.89.89.99.99
+  59.59.59.69.79.89.89.89.99.99   59.59.69.79.89.89.89.99.99
+  59.69.79.89.89.89.99.99   69.79.89.89.89.99.99   79.89.89.89.99.99
+  89.89.89.99.99   89.89.99.99   89.99.99   99.99   99}
+
+do_execsql_test 1.4.14.5 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( ORDER BY b%10,a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
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+  6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  9.79.49.59.29.59.19.39.9.9.99.69.39   79.49.59.29.59.19.39.9.9.99.69.39
+  49.59.29.59.19.39.9.9.99.69.39   59.29.59.19.39.9.9.99.69.39
+  29.59.19.39.9.9.99.69.39   59.19.39.9.9.99.69.39   19.39.9.9.99.69.39
+  39.9.9.99.69.39   9.9.99.69.39   9.99.69.39   99.69.39   69.39   39}
+
+do_execsql_test 1.4.14.6 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (PARTITION BY b%2,a ORDER BY b%10 RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING) FROM t2
+} {96   38   68   62   46   6   46   78   54   8   84   16   16   86   74   24
+  12   32   56   22   90   28   56   40   56   16   36   98   76   4   94
+  42   30   78   2   80   84   72   58   96   98   74   12   8   20   22   88
+  34   8   34   90   96   60   44   2   74   70   26   26   80   90   36   58
+  72   72   66   64   12   14   62   36   34   36   58   52   30   50   84
+  10   84   44   58   30   38   34   82   89   81   59   39   91   99   97
+  27   97   67   29   93   77   23   93   65   35   47   7   61   91   85
+  85   43   59   3   91   55   15   89   25   47   1   43   75   89   81   33
+  29   53   63   87   37   41   9   61   73   95   65   13   1   21   65   35
+  5   73   11   51   87   41   31   31   15   95   73   79   11   49   59
+  55   75   77   7   85   57   29   59   19   39   47   47   9   33   93   75
+  81   9   23   37   13   91   91   33   15   99   3   95   69   33   21   39
+  83   27   17   7}
+
+do_execsql_test 1.4.14.7 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (win1 ORDER BY b%10 RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING) 
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a)
+    ORDER BY 1
+} {1   1   10   11   11   12   12   12   13   13   14   15   15   15   16   16
+  16   17   19   2   2   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   3   3   30   30   30   31   31   32   33   33
+  33   33   34   34   34   34   35   35   36   36   36   36   37   37   38
+  38   39   39   39   4   40   41   41   42   43   43   44   44   46   46
+  47   47   47   47   49   5   50   51   52   53   54   55   55   56   56
+  56   57   58   58   58   58   59   59   59   59   6   60   61   61   62
+  62   63   64   65   65   65   66   67   68   69   7   7   7   70   72   72
+  72   73   73   73   74   74   74   75   75   75   76   77   77   78   78
+  79   8   8   8   80   80   81   81   81   82   83   84   84   84   84   85
+  85   85   86   87   87   88   89   89   89   9   9   9   90   90   90   91
+  91   91   91   91   93   93   93   94   95   95   95   96   96   96   97
+  97   98   98   99   99}
+
+do_execsql_test 1.4.14.8 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (win1 RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING) 
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a ORDER BY b%10)
+    ORDER BY 1
+} {1   1   10   11   11   12   12   12   13   13   14   15   15   15   16   16
+  16   17   19   2   2   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   3   3   30   30   30   31   31   32   33   33
+  33   33   34   34   34   34   35   35   36   36   36   36   37   37   38
+  38   39   39   39   4   40   41   41   42   43   43   44   44   46   46
+  47   47   47   47   49   5   50   51   52   53   54   55   55   56   56
+  56   57   58   58   58   58   59   59   59   59   6   60   61   61   62
+  62   63   64   65   65   65   66   67   68   69   7   7   7   70   72   72
+  72   73   73   73   74   74   74   75   75   75   76   77   77   78   78
+  79   8   8   8   80   80   81   81   81   82   83   84   84   84   84   85
+  85   85   86   87   87   88   89   89   89   9   9   9   90   90   90   91
+  91   91   91   91   93   93   93   94   95   95   95   96   96   96   97
+  97   98   98   99   99}
+
+do_execsql_test 1.4.14.9 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER win2
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a ORDER BY b%10),
+           win2 AS (win1 RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING)
+    ORDER BY 1
+} {1   1   10   11   11   12   12   12   13   13   14   15   15   15   16   16
+  16   17   19   2   2   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   3   3   30   30   30   31   31   32   33   33
+  33   33   34   34   34   34   35   35   36   36   36   36   37   37   38
+  38   39   39   39   4   40   41   41   42   43   43   44   44   46   46
+  47   47   47   47   49   5   50   51   52   53   54   55   55   56   56
+  56   57   58   58   58   58   59   59   59   59   6   60   61   61   62
+  62   63   64   65   65   65   66   67   68   69   7   7   7   70   72   72
+  72   73   73   73   74   74   74   75   75   75   76   77   77   78   78
+  79   8   8   8   80   80   81   81   81   82   83   84   84   84   84   85
+  85   85   86   87   87   88   89   89   89   9   9   9   90   90   90   91
+  91   91   91   91   93   93   93   94   95   95   95   96   96   96   97
+  97   98   98   99   99}
+
+do_execsql_test 1.4.15.1 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE a%2=0) OVER win FROM t2
+    WINDOW win AS (ORDER BY a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING)
+} {191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  190 96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  189 96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  188 38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  187 38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  186 39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  185 39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  184 91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  183 91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  182 6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  181 6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  180 97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  179 97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  178 46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  177 46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  176 54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  175 54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  174 8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  173 8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  172 29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  171 29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  170 84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  169 84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  168 23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  167 23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  166 16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  165 16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  164 65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  163 65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  162 47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  161 47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  160 86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  159 86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  158 61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  157 61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  156 85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  155 85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  154 85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  153 85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  152 59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  151 59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
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+  83 95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  82 73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  81 73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  80 88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  79 88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  78 8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  77 8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  76 49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  75 49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  74 90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  73 90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  72 96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  71 96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  70 55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  69 55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  68 77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  67 77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  66 2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  65 2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  64 85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  63 85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  62 74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  61 74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  60 70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  59 70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  58 19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  57 19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  56 26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  55 26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  54 47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  53 47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  52 90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  51 90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  50 58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  49 58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  48 9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  47 9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  46 72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  45 72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  44 33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  43 33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  42 75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  41 75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  40 81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  39 81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  38 23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  37 23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  36 13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  35 13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  34 14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  33 14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  32 91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  31 91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  30 91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  29 91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  28 15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  27 15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  26 36.3.69.52.50.10.33.39.58.38.83.82.7
+  25 36.3.69.52.50.10.33.39.58.38.83.82.7
+  24 3.69.52.50.10.33.39.58.38.83.82.7   23 3.69.52.50.10.33.39.58.38.83.82.7
+  22 69.52.50.10.33.39.58.38.83.82.7   21 69.52.50.10.33.39.58.38.83.82.7
+  20 52.50.10.33.39.58.38.83.82.7   19 52.50.10.33.39.58.38.83.82.7
+  18 50.10.33.39.58.38.83.82.7   17 50.10.33.39.58.38.83.82.7
+  16 10.33.39.58.38.83.82.7   15 10.33.39.58.38.83.82.7
+  14 33.39.58.38.83.82.7   13 33.39.58.38.83.82.7   12 39.58.38.83.82.7
+  11 39.58.38.83.82.7   10 58.38.83.82.7   9 58.38.83.82.7   8 38.83.82.7
+  7 38.83.82.7   6 83.82.7   5 83.82.7   4 82.7   3 82.7   2 7   1 7}
+
+do_execsql_test 1.4.15.2 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE 0=1) OVER win FROM t2
+    WINDOW win AS (ORDER BY a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING)
+} {191 {}   190 {}   189 {}   188 {}   187 {}   186 {}   185 {}   184 {}
+  183 {}   182 {}   181 {}   180 {}   179 {}   178 {}   177 {}   176 {}
+  175 {}   174 {}   173 {}   172 {}   171 {}   170 {}   169 {}   168 {}
+  167 {}   166 {}   165 {}   164 {}   163 {}   162 {}   161 {}   160 {}
+  159 {}   158 {}   157 {}   156 {}   155 {}   154 {}   153 {}   152 {}
+  151 {}   150 {}   149 {}   148 {}   147 {}   146 {}   145 {}   144 {}
+  143 {}   142 {}   141 {}   140 {}   139 {}   138 {}   137 {}   136 {}
+  135 {}   134 {}   133 {}   132 {}   131 {}   130 {}   129 {}   128 {}
+  127 {}   126 {}   125 {}   124 {}   123 {}   122 {}   121 {}   120 {}
+  119 {}   118 {}   117 {}   116 {}   115 {}   114 {}   113 {}   112 {}
+  111 {}   110 {}   109 {}   108 {}   107 {}   106 {}   105 {}   104 {}
+  103 {}   102 {}   101 {}   100 {}   99 {}   98 {}   97 {}   96 {}   95 {}
+  94 {}   93 {}   92 {}   91 {}   90 {}   89 {}   88 {}   87 {}   86 {}
+  85 {}   84 {}   83 {}   82 {}   81 {}   80 {}   79 {}   78 {}   77 {}
+  76 {}   75 {}   74 {}   73 {}   72 {}   71 {}   70 {}   69 {}   68 {}
+  67 {}   66 {}   65 {}   64 {}   63 {}   62 {}   61 {}   60 {}   59 {}
+  58 {}   57 {}   56 {}   55 {}   54 {}   53 {}   52 {}   51 {}   50 {}
+  49 {}   48 {}   47 {}   46 {}   45 {}   44 {}   43 {}   42 {}   41 {}
+  40 {}   39 {}   38 {}   37 {}   36 {}   35 {}   34 {}   33 {}   32 {}
+  31 {}   30 {}   29 {}   28 {}   27 {}   26 {}   25 {}   24 {}   23 {}
+  22 {}   21 {}   20 {}   19 {}   18 {}   17 {}   16 {}   15 {}   14 {}
+  13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}   4 {}
+  3 {}   2 {}   1 {}}
+
+do_execsql_test 1.4.15.3 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE 1=0) OVER win FROM t2
+    WINDOW win AS (PARTITION BY (a%10) ORDER BY a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING)
+} {20 {}   19 {}   18 {}   17 {}   16 {}   15 {}   14 {}   13 {}   12 {}
+  11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}   4 {}   3 {}   2 {}
+  1 {}   19 {}   18 {}   17 {}   16 {}   15 {}   14 {}   13 {}   12 {}
+  11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}   4 {}   3 {}   2 {}
+  1 {}   19 {}   18 {}   17 {}   16 {}   15 {}   14 {}   13 {}   12 {}
+  11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}   4 {}   3 {}   2 {}
+  1 {}   19 {}   18 {}   17 {}   16 {}   15 {}   14 {}   13 {}   12 {}
+  11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}   4 {}   3 {}   2 {}
+  1 {}   19 {}   18 {}   17 {}   16 {}   15 {}   14 {}   13 {}   12 {}
+  11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}   4 {}   3 {}   2 {}
+  1 {}   19 {}   18 {}   17 {}   16 {}   15 {}   14 {}   13 {}   12 {}
+  11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}   4 {}   3 {}   2 {}
+  1 {}   19 {}   18 {}   17 {}   16 {}   15 {}   14 {}   13 {}   12 {}
+  11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}   4 {}   3 {}   2 {}
+  1 {}   19 {}   18 {}   17 {}   16 {}   15 {}   14 {}   13 {}   12 {}
+  11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}   4 {}   3 {}   2 {}
+  1 {}   19 {}   18 {}   17 {}   16 {}   15 {}   14 {}   13 {}   12 {}
+  11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}   4 {}   3 {}   2 {}
+  1 {}   19 {}   18 {}   17 {}   16 {}   15 {}   14 {}   13 {}   12 {}
+  11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}   4 {}   3 {}   2 {}
+  1 {}}
+
+do_execsql_test 1.4.15.4 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE a%2=0) OVER win FROM t2
+    WINDOW win AS (PARTITION BY (a%10) ORDER BY a RANGE BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING)
+} {20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  19 6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  18 29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  17 47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  16 59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  15 28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  14 75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  13 78.72.98.87.73.96.74.90.75.91.69.39.7
+  12 72.98.87.73.96.74.90.75.91.69.39.7   11 98.87.73.96.74.90.75.91.69.39.7
+  10 87.73.96.74.90.75.91.69.39.7   9 73.96.74.90.75.91.69.39.7
+  8 96.74.90.75.91.69.39.7   7 74.90.75.91.69.39.7   6 90.75.91.69.39.7
+  5 75.91.69.39.7   4 91.69.39.7   3 69.39.7   2 39.7   1 7   19 {}   18 {}
+  17 {}   16 {}   15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}
+  7 {}   6 {}   5 {}   4 {}   3 {}   2 {}   1 {}
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  18 97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  17 84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  16 86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  15 32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  14 25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  13 89.29.9.21.12.88.55.70.58.81.91.52.58
+  12 29.9.21.12.88.55.70.58.81.91.52.58   11 9.21.12.88.55.70.58.81.91.52.58
+  10 21.12.88.55.70.58.81.91.52.58   9 12.88.55.70.58.81.91.52.58
+  8 88.55.70.58.81.91.52.58   7 55.70.58.81.91.52.58   6 70.58.81.91.52.58
+  5 58.81.91.52.58   4 81.91.52.58   3 91.52.58   2 52.58   1 58   19 {}
+  18 {}   17 {}   16 {}   15 {}   14 {}   13 {}   12 {}   11 {}   10 {}
+  9 {}   8 {}   7 {}   6 {}   5 {}   4 {}   3 {}   2 {}   1 {}
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  18 46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  17 23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  16 61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  15 3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  14 1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  13 76.63.73.65.20.8.77.19.9.23.15.50.38
+  12 63.73.65.20.8.77.19.9.23.15.50.38   11 73.65.20.8.77.19.9.23.15.50.38
+  10 65.20.8.77.19.9.23.15.50.38   9 20.8.77.19.9.23.15.50.38
+  8 8.77.19.9.23.15.50.38   7 77.19.9.23.15.50.38   6 19.9.23.15.50.38
+  5 9.23.15.50.38   4 23.15.50.38   3 15.50.38   2 50.38   1 38   19 {}
+  18 {}   17 {}   16 {}   15 {}   14 {}   13 {}   12 {}   11 {}   10 {}
+  9 {}   8 {}   7 {}   6 {}   5 {}   4 {}   3 {}   2 {}   1 {}
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  18 54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  17 16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  16 85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  15 22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  14 40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  13 4.87.65.5.31.49.2.26.72.13.36.10.83
+  12 87.65.5.31.49.2.26.72.13.36.10.83   11 65.5.31.49.2.26.72.13.36.10.83
+  10 5.31.49.2.26.72.13.36.10.83   9 31.49.2.26.72.13.36.10.83
+  8 49.2.26.72.13.36.10.83   7 2.26.72.13.36.10.83   6 26.72.13.36.10.83
+  5 72.13.36.10.83   4 13.36.10.83   3 36.10.83   2 10.83   1 83   19 {}
+  18 {}   17 {}   16 {}   15 {}   14 {}   13 {}   12 {}   11 {}   10 {}
+  9 {}   8 {}   7 {}   6 {}   5 {}   4 {}   3 {}   2 {}   1 {}
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  18 8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  17 65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  16 85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  15 55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  14 56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  13 42.80.58.11.95.90.85.47.33.14.3.33.82
+  12 80.58.11.95.90.85.47.33.14.3.33.82   11 58.11.95.90.85.47.33.14.3.33.82
+  10 11.95.90.85.47.33.14.3.33.82   9 95.90.85.47.33.14.3.33.82
+  8 90.85.47.33.14.3.33.82   7 85.47.33.14.3.33.82   6 47.33.14.3.33.82
+  5 33.14.3.33.82   4 14.3.33.82   3 3.33.82   2 33.82   1 82   19 {}   18 {}
+  17 {}   16 {}   15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}
+  7 {}   6 {}   5 {}   4 {}   3 {}   2 {}   1 {}}
+
+do_execsql_test 1.5.2.1 {
+  SELECT max(b) OVER ( ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2
+} {{}   {}   {}   {}   89   89   96   96   96   96   96   96   96   96   96
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99}
+
+do_execsql_test 1.5.2.2 {
+  SELECT min(b) OVER ( ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2
+} {{}   {}   {}   {}   89   81   81   59   38   38   38   38   38   38   6   6
+  6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6
+  6   6   6   6   6   6   6   6   6   6   6   6   6   3   3   3   3   3   3
+  3   3   3   3   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1}
+
+do_execsql_test 1.5.3.1 {
+  SELECT row_number() OVER ( ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.5.3.2 {
+  SELECT row_number() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.5.3.3 {
+  SELECT row_number() OVER ( ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.5.4.1 {
+  SELECT dense_rank() OVER ( ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.5.4.2 {
+  SELECT dense_rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.5.4.3 {
+  SELECT dense_rank() OVER ( ORDER BY b ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2
+} {1   1   2   2   3   3   4   5   6   7   7   7   8   8   8   9   9   9   10
+  11   11   12   12   12   13   13   14   15   15   15   16   16   16   17
+  18   19   20   20   21   21   22   22   23   24   25   25   26   26   27
+  28   28   28   29   29   29   30   30   31   32   32   32   32   33   33
+  33   33   34   34   35   35   35   35   36   36   37   37   38   38   38
+  39   40   40   41   42   42   43   43   44   44   45   45   45   45   46
+  47   48   49   50   51   52   52   53   53   53   54   55   55   55   55
+  56   56   56   56   57   58   58   59   59   60   61   62   62   62   63
+  64   65   66   67   68   68   68   69   69   69   70   70   70   71   71
+  71   72   73   73   74   74   75   76   76   77   77   77   78   79   80
+  80   80   80   81   81   81   82   83   83   84   85   85   85   86   86
+  86   87   87   87   87   87   88   88   88   89   90   90   90   91   91
+  91   92   92   93   93   94   94}
+
+do_execsql_test 1.5.4.4 {
+  SELECT dense_rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2
+} {1   2   3   3   3   4   5   6   7   8   8   9   9   9   1   1   2   2   3
+  3   4   4   5   5   6   7   7   8   8   8   9   9   9   9   9   1   1   2
+  2   2   3   3   4   5   6   7   7   8   8   8   9   1   1   2   2   3   3
+  4   4   4   4   5   5   6   7   8   8   8   9   10   10   10   1   2   3
+  4   4   4   4   5   5   6   7   8   8   8   9   9   9   9   10   1   2   2
+  2   3   4   4   5   5   6   6   6   7   7   7   8   8   8   9   9   9   1
+  2   2   2   3   3   4   4   4   4   5   5   6   6   6   7   8   9   10   10
+  10   1   1   1   2   3   3   4   4   5   5   5   5   6   7   8   8   9   9
+  10   10   1   1   1   2   3   3   4   4   4   4   5   6   6   7   8   8   1
+  1   1   2   3   3   3   4   4   4   5   6   6   6   6   7   8   9   9   9
+  10   10}
+
+do_execsql_test 1.5.4.5 {
+  SELECT dense_rank() OVER ( ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   4   4   4   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5   5   5   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   6   6   6   6
+  6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   7   7
+  7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7
+  8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8
+  8   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   10   10
+  10   10   10   10   10   10   10   10   10   10   10   10   10   10   10
+  10   10   10   10   10}
+
+do_execsql_test 1.5.4.6 {
+  SELECT dense_rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   3   3   3   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   4   4   4   4   4   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   5   5   5   5   5   5
+  5   5   5   5   5   5   5   5   5   5   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5
+  5}
+
+do_execsql_test 1.5.5.1 {
+  SELECT rank() OVER ( ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.5.5.2 {
+  SELECT rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.5.5.3 {
+  SELECT rank() OVER ( ORDER BY b ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2
+} {1   1   3   3   5   5   7   8   9   10   10   10   13   13   13   16   16
+  16   19   20   20   22   22   22   25   25   27   28   28   28   31   31
+  31   34   35   36   37   37   39   39   41   41   43   44   45   45   47
+  47   49   50   50   50   53   53   53   56   56   58   59   59   59   59
+  63   63   63   63   67   67   69   69   69   69   73   73   75   75   77
+  77   77   80   81   81   83   84   84   86   86   88   88   90   90   90
+  90   94   95   96   97   98   99   100   100   102   102   102   105   106
+  106   106   106   110   110   110   110   114   115   115   117   117   119
+  120   121   121   121   124   125   126   127   128   129   129   129   132
+  132   132   135   135   135   138   138   138   141   142   142   144   144
+  146   147   147   149   149   149   152   153   154   154   154   154   158
+  158   158   161   162   162   164   165   165   165   168   168   168   171
+  171   171   171   171   176   176   176   179   180   180   180   183   183
+  183   186   186   188   188   190   190}
+
+do_execsql_test 1.5.5.4 {
+  SELECT rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2
+} {1   2   3   3   3   6   7   8   9   10   10   12   12   12   1   1   3   3
+  5   5   7   7   9   9   11   12   12   14   14   14   17   17   17   17
+  17   1   1   3   3   3   6   6   8   9   10   11   11   13   13   13   16
+  1   1   3   3   5   5   7   7   7   7   11   11   13   14   15   15   15
+  18   19   19   19   1   2   3   4   4   4   4   8   8   10   11   12   12
+  12   15   15   15   15   19   1   2   2   2   5   6   6   8   8   10   10
+  10   13   13   13   16   16   16   19   19   19   1   2   2   2   5   5   7
+  7   7   7   11   11   13   13   13   16   17   18   19   19   19   1   1
+  1   4   5   5   7   7   9   9   9   9   13   14   15   15   17   17   19
+  19   1   1   1   4   5   5   7   7   7   7   11   12   12   14   15   15
+  1   1   1   4   5   5   5   8   8   8   11   12   12   12   12   16   17
+  18   18   18   21   21}
+
+do_execsql_test 1.5.5.5 {
+  SELECT rank() OVER ( ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   15   15   15   15
+  15   15   15   15   15   15   15   15   15   15   15   15   15   15   15
+  15   15   36   36   36   36   36   36   36   36   36   36   36   36   36
+  36   36   36   52   52   52   52   52   52   52   52   52   52   52   52
+  52   52   52   52   52   52   52   52   52   73   73   73   73   73   73
+  73   73   73   73   73   73   73   73   73   73   73   73   73   92   92
+  92   92   92   92   92   92   92   92   92   92   92   92   92   92   92
+  92   92   92   92   113   113   113   113   113   113   113   113   113
+  113   113   113   113   113   113   113   113   113   113   113   113   134
+  134   134   134   134   134   134   134   134   134   134   134   134   134
+  134   134   134   134   134   134   154   154   154   154   154   154   154
+  154   154   154   154   154   154   154   154   154   170   170   170   170
+  170   170   170   170   170   170   170   170   170   170   170   170   170
+  170   170   170   170   170}
+
+do_execsql_test 1.5.5.6 {
+  SELECT rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   15   15   15   15
+  15   15   15   15   15   15   15   15   15   15   15   15   31   31   31
+  31   31   31   31   31   31   31   31   31   31   31   31   31   31   31
+  31   50   50   50   50   50   50   50   50   50   50   50   50   50   50
+  50   50   50   50   50   50   50   71   71   71   71   71   71   71   71
+  71   71   71   71   71   71   71   71   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   22   22   22   22   22   22
+  22   22   22   22   22   22   22   22   22   22   22   22   22   22   22
+  43   43   43   43   43   43   43   43   43   43   43   43   43   43   43
+  43   43   43   43   43   43   64   64   64   64   64   64   64   64   64
+  64   64   64   64   64   64   64   64   64   64   64   84   84   84   84
+  84   84   84   84   84   84   84   84   84   84   84   84   84   84   84
+  84   84   84}
+
+do_execsql_test 1.5.6.1 {
+  SELECT 
+      row_number() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ),
+      rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ),
+      dense_rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING )
+    FROM t2
+} {1 1 1   2 1 1   3 1 1   4 1 1   5 1 1   6 1 1   7 1 1   8 1 1   9 1 1
+  10 1 1   11 1 1   12 1 1   13 1 1   14 1 1   15 15 2   16 15 2   17 15 2
+  18 15 2   19 15 2   20 15 2   21 15 2   22 15 2   23 15 2   24 15 2
+  25 15 2   26 15 2   27 15 2   28 15 2   29 15 2   30 15 2   31 31 3
+  32 31 3   33 31 3   34 31 3   35 31 3   36 31 3   37 31 3   38 31 3
+  39 31 3   40 31 3   41 31 3   42 31 3   43 31 3   44 31 3   45 31 3
+  46 31 3   47 31 3   48 31 3   49 31 3   50 50 4   51 50 4   52 50 4
+  53 50 4   54 50 4   55 50 4   56 50 4   57 50 4   58 50 4   59 50 4
+  60 50 4   61 50 4   62 50 4   63 50 4   64 50 4   65 50 4   66 50 4
+  67 50 4   68 50 4   69 50 4   70 50 4   71 71 5   72 71 5   73 71 5
+  74 71 5   75 71 5   76 71 5   77 71 5   78 71 5   79 71 5   80 71 5
+  81 71 5   82 71 5   83 71 5   84 71 5   85 71 5   86 71 5   1 1 1   2 1 1
+  3 1 1   4 1 1   5 1 1   6 1 1   7 1 1   8 1 1   9 1 1   10 1 1   11 1 1
+  12 1 1   13 1 1   14 1 1   15 1 1   16 1 1   17 1 1   18 1 1   19 1 1
+  20 1 1   21 1 1   22 22 2   23 22 2   24 22 2   25 22 2   26 22 2   27 22 2
+  28 22 2   29 22 2   30 22 2   31 22 2   32 22 2   33 22 2   34 22 2
+  35 22 2   36 22 2   37 22 2   38 22 2   39 22 2   40 22 2   41 22 2
+  42 22 2   43 43 3   44 43 3   45 43 3   46 43 3   47 43 3   48 43 3
+  49 43 3   50 43 3   51 43 3   52 43 3   53 43 3   54 43 3   55 43 3
+  56 43 3   57 43 3   58 43 3   59 43 3   60 43 3   61 43 3   62 43 3
+  63 43 3   64 64 4   65 64 4   66 64 4   67 64 4   68 64 4   69 64 4
+  70 64 4   71 64 4   72 64 4   73 64 4   74 64 4   75 64 4   76 64 4
+  77 64 4   78 64 4   79 64 4   80 64 4   81 64 4   82 64 4   83 64 4
+  84 84 5   85 84 5   86 84 5   87 84 5   88 84 5   89 84 5   90 84 5
+  91 84 5   92 84 5   93 84 5   94 84 5   95 84 5   96 84 5   97 84 5
+  98 84 5   99 84 5   100 84 5   101 84 5   102 84 5   103 84 5   104 84 5
+  105 84 5}
+
+
+do_test 1.5.7.1 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0053 0.0105 0.0158 0.0211 0.0263 0.0316 0.0368 0.0421 0.0474 0.0526 0.0579 0.0632 0.0684 0.0737 0.0789 0.0842 0.0895 0.0947 0.1000 0.1053 0.1105 0.1158 0.1211 0.1263 0.1316 0.1368 0.1421 0.1474 0.1526 0.1579 0.1632 0.1684 0.1737 0.1789 0.1842 0.1895 0.1947 0.2000 0.2053 0.2105 0.2158 0.2211 0.2263 0.2316 0.2368 0.2421 0.2474 0.2526 0.2579 0.2632 0.2684 0.2737 0.2789 0.2842 0.2895 0.2947 0.3000 0.3053 0.3105 0.3158 0.3211 0.3263 0.3316 0.3368 0.3421 0.3474 0.3526 0.3579 0.3632 0.3684 0.3737 0.3789 0.3842 0.3895 0.3947 0.4000 0.4053 0.4105 0.4158 0.4211 0.4263 0.4316 0.4368 0.4421 0.4474 0.4526 0.4579 0.4632 0.4684 0.4737 0.4789 0.4842 0.4895 0.4947 0.5000 0.5053 0.5105 0.5158 0.5211 0.5263 0.5316 0.5368 0.5421 0.5474 0.5526 0.5579 0.5632 0.5684 0.5737 0.5789 0.5842 0.5895 0.5947 0.6000 0.6053 0.6105 0.6158 0.6211 0.6263 0.6316 0.6368 0.6421 0.6474 0.6526 0.6579 0.6632 0.6684 0.6737 0.6789 0.6842 0.6895 0.6947 0.7000 0.7053 0.7105 0.7158 0.7211 0.7263 0.7316 0.7368 0.7421 0.7474 0.7526 0.7579 0.7632 0.7684 0.7737 0.7789 0.7842 0.7895 0.7947 0.8000 0.8053 0.8105 0.8158 0.8211 0.8263 0.8316 0.8368 0.8421 0.8474 0.8526 0.8579 0.8632 0.8684 0.8737 0.8789 0.8842 0.8895 0.8947 0.9000 0.9053 0.9105 0.9158 0.9211 0.9263 0.9316 0.9368 0.9421 0.9474 0.9526 0.9579 0.9632 0.9684 0.9737 0.9789 0.9842 0.9895 0.9947 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.5.7.2 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0769 0.1538 0.2308 0.3077 0.3846 0.4615 0.5385 0.6154 0.6923 0.7692 0.8462 0.9231 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0667 0.1333 0.2000 0.2667 0.3333 0.4000 0.4667 0.5333 0.6000 0.6667 0.7333 0.8000 0.8667 0.9333 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0556 0.1111 0.1667 0.2222 0.2778 0.3333 0.3889 0.4444 0.5000 0.5556 0.6111 0.6667 0.7222 0.7778 0.8333 0.8889 0.9444 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0526 0.1053 0.1579 0.2105 0.2632 0.3158 0.3684 0.4211 0.4737 0.5263 0.5789 0.6316 0.6842 0.7368 0.7895 0.8421 0.8947 0.9474 1.0000 0.0000 0.0667 0.1333 0.2000 0.2667 0.3333 0.4000 0.4667 0.5333 0.6000 0.6667 0.7333 0.8000 0.8667 0.9333 1.0000 0.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.5.7.3 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY b ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0105 0.0105 0.0211 0.0211 0.0316 0.0368 0.0421 0.0474 0.0474 0.0474 0.0632 0.0632 0.0632 0.0789 0.0789 0.0789 0.0947 0.1000 0.1000 0.1105 0.1105 0.1105 0.1263 0.1263 0.1368 0.1421 0.1421 0.1421 0.1579 0.1579 0.1579 0.1737 0.1789 0.1842 0.1895 0.1895 0.2000 0.2000 0.2105 0.2105 0.2211 0.2263 0.2316 0.2316 0.2421 0.2421 0.2526 0.2579 0.2579 0.2579 0.2737 0.2737 0.2737 0.2895 0.2895 0.3000 0.3053 0.3053 0.3053 0.3053 0.3263 0.3263 0.3263 0.3263 0.3474 0.3474 0.3579 0.3579 0.3579 0.3579 0.3789 0.3789 0.3895 0.3895 0.4000 0.4000 0.4000 0.4158 0.4211 0.4211 0.4316 0.4368 0.4368 0.4474 0.4474 0.4579 0.4579 0.4684 0.4684 0.4684 0.4684 0.4895 0.4947 0.5000 0.5053 0.5105 0.5158 0.5211 0.5211 0.5316 0.5316 0.5316 0.5474 0.5526 0.5526 0.5526 0.5526 0.5737 0.5737 0.5737 0.5737 0.5947 0.6000 0.6000 0.6105 0.6105 0.6211 0.6263 0.6316 0.6316 0.6316 0.6474 0.6526 0.6579 0.6632 0.6684 0.6737 0.6737 0.6737 0.6895 0.6895 0.6895 0.7053 0.7053 0.7053 0.7211 0.7211 0.7211 0.7368 0.7421 0.7421 0.7526 0.7526 0.7632 0.7684 0.7684 0.7789 0.7789 0.7789 0.7947 0.8000 0.8053 0.8053 0.8053 0.8053 0.8263 0.8263 0.8263 0.8421 0.8474 0.8474 0.8579 0.8632 0.8632 0.8632 0.8789 0.8789 0.8789 0.8947 0.8947 0.8947 0.8947 0.8947 0.9211 0.9211 0.9211 0.9368 0.9421 0.9421 0.9421 0.9579 0.9579 0.9579 0.9737 0.9737 0.9842 0.9842 0.9947 0.9947}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.5.7.4 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0769 0.1538 0.1538 0.1538 0.3846 0.4615 0.5385 0.6154 0.6923 0.6923 0.8462 0.8462 0.8462 0.0000 0.0000 0.1000 0.1000 0.2000 0.2000 0.3000 0.3000 0.4000 0.4000 0.5000 0.5500 0.5500 0.6500 0.6500 0.6500 0.8000 0.8000 0.8000 0.8000 0.8000 0.0000 0.0000 0.1333 0.1333 0.1333 0.3333 0.3333 0.4667 0.5333 0.6000 0.6667 0.6667 0.8000 0.8000 0.8000 1.0000 0.0000 0.0000 0.1000 0.1000 0.2000 0.2000 0.3000 0.3000 0.3000 0.3000 0.5000 0.5000 0.6000 0.6500 0.7000 0.7000 0.7000 0.8500 0.9000 0.9000 0.9000 0.0000 0.0556 0.1111 0.1667 0.1667 0.1667 0.1667 0.3889 0.3889 0.5000 0.5556 0.6111 0.6111 0.6111 0.7778 0.7778 0.7778 0.7778 1.0000 0.0000 0.0500 0.0500 0.0500 0.2000 0.2500 0.2500 0.3500 0.3500 0.4500 0.4500 0.4500 0.6000 0.6000 0.6000 0.7500 0.7500 0.7500 0.9000 0.9000 0.9000 0.0000 0.0500 0.0500 0.0500 0.2000 0.2000 0.3000 0.3000 0.3000 0.3000 0.5000 0.5000 0.6000 0.6000 0.6000 0.7500 0.8000 0.8500 0.9000 0.9000 0.9000 0.0000 0.0000 0.0000 0.1579 0.2105 0.2105 0.3158 0.3158 0.4211 0.4211 0.4211 0.4211 0.6316 0.6842 0.7368 0.7368 0.8421 0.8421 0.9474 0.9474 0.0000 0.0000 0.0000 0.2000 0.2667 0.2667 0.4000 0.4000 0.4000 0.4000 0.6667 0.7333 0.7333 0.8667 0.9333 0.9333 0.0000 0.0000 0.0000 0.1429 0.1905 0.1905 0.1905 0.3333 0.3333 0.3333 0.4762 0.5238 0.5238 0.5238 0.5238 0.7143 0.7619 0.8095 0.8095 0.8095 0.9524 0.9524}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.5.7.5 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.5.7.6 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER (PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.5.8.1 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0052 0.0105 0.0157 0.0209 0.0262 0.0314 0.0366 0.0419 0.0471 0.0524 0.0576 0.0628 0.0681 0.0733 0.0785 0.0838 0.0890 0.0942 0.0995 0.1047 0.1099 0.1152 0.1204 0.1257 0.1309 0.1361 0.1414 0.1466 0.1518 0.1571 0.1623 0.1675 0.1728 0.1780 0.1832 0.1885 0.1937 0.1990 0.2042 0.2094 0.2147 0.2199 0.2251 0.2304 0.2356 0.2408 0.2461 0.2513 0.2565 0.2618 0.2670 0.2723 0.2775 0.2827 0.2880 0.2932 0.2984 0.3037 0.3089 0.3141 0.3194 0.3246 0.3298 0.3351 0.3403 0.3455 0.3508 0.3560 0.3613 0.3665 0.3717 0.3770 0.3822 0.3874 0.3927 0.3979 0.4031 0.4084 0.4136 0.4188 0.4241 0.4293 0.4346 0.4398 0.4450 0.4503 0.4555 0.4607 0.4660 0.4712 0.4764 0.4817 0.4869 0.4921 0.4974 0.5026 0.5079 0.5131 0.5183 0.5236 0.5288 0.5340 0.5393 0.5445 0.5497 0.5550 0.5602 0.5654 0.5707 0.5759 0.5812 0.5864 0.5916 0.5969 0.6021 0.6073 0.6126 0.6178 0.6230 0.6283 0.6335 0.6387 0.6440 0.6492 0.6545 0.6597 0.6649 0.6702 0.6754 0.6806 0.6859 0.6911 0.6963 0.7016 0.7068 0.7120 0.7173 0.7225 0.7277 0.7330 0.7382 0.7435 0.7487 0.7539 0.7592 0.7644 0.7696 0.7749 0.7801 0.7853 0.7906 0.7958 0.8010 0.8063 0.8115 0.8168 0.8220 0.8272 0.8325 0.8377 0.8429 0.8482 0.8534 0.8586 0.8639 0.8691 0.8743 0.8796 0.8848 0.8901 0.8953 0.9005 0.9058 0.9110 0.9162 0.9215 0.9267 0.9319 0.9372 0.9424 0.9476 0.9529 0.9581 0.9634 0.9686 0.9738 0.9791 0.9843 0.9895 0.9948 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.5.8.2 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0714 0.1429 0.2143 0.2857 0.3571 0.4286 0.5000 0.5714 0.6429 0.7143 0.7857 0.8571 0.9286 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0625 0.1250 0.1875 0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250 0.6875 0.7500 0.8125 0.8750 0.9375 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0526 0.1053 0.1579 0.2105 0.2632 0.3158 0.3684 0.4211 0.4737 0.5263 0.5789 0.6316 0.6842 0.7368 0.7895 0.8421 0.8947 0.9474 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0625 0.1250 0.1875 0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250 0.6875 0.7500 0.8125 0.8750 0.9375 1.0000 0.0455 0.0909 0.1364 0.1818 0.2273 0.2727 0.3182 0.3636 0.4091 0.4545 0.5000 0.5455 0.5909 0.6364 0.6818 0.7273 0.7727 0.8182 0.8636 0.9091 0.9545 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.5.8.3 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY b ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0105 0.0105 0.0209 0.0209 0.0314 0.0314 0.0366 0.0419 0.0471 0.0628 0.0628 0.0628 0.0785 0.0785 0.0785 0.0942 0.0942 0.0942 0.0995 0.1099 0.1099 0.1257 0.1257 0.1257 0.1361 0.1361 0.1414 0.1571 0.1571 0.1571 0.1728 0.1728 0.1728 0.1780 0.1832 0.1885 0.1990 0.1990 0.2094 0.2094 0.2199 0.2199 0.2251 0.2304 0.2408 0.2408 0.2513 0.2513 0.2565 0.2723 0.2723 0.2723 0.2880 0.2880 0.2880 0.2984 0.2984 0.3037 0.3246 0.3246 0.3246 0.3246 0.3455 0.3455 0.3455 0.3455 0.3560 0.3560 0.3770 0.3770 0.3770 0.3770 0.3874 0.3874 0.3979 0.3979 0.4136 0.4136 0.4136 0.4188 0.4293 0.4293 0.4346 0.4450 0.4450 0.4555 0.4555 0.4660 0.4660 0.4869 0.4869 0.4869 0.4869 0.4921 0.4974 0.5026 0.5079 0.5131 0.5183 0.5288 0.5288 0.5445 0.5445 0.5445 0.5497 0.5707 0.5707 0.5707 0.5707 0.5916 0.5916 0.5916 0.5916 0.5969 0.6073 0.6073 0.6178 0.6178 0.6230 0.6283 0.6440 0.6440 0.6440 0.6492 0.6545 0.6597 0.6649 0.6702 0.6859 0.6859 0.6859 0.7016 0.7016 0.7016 0.7173 0.7173 0.7173 0.7330 0.7330 0.7330 0.7382 0.7487 0.7487 0.7592 0.7592 0.7644 0.7749 0.7749 0.7906 0.7906 0.7906 0.7958 0.8010 0.8220 0.8220 0.8220 0.8220 0.8377 0.8377 0.8377 0.8429 0.8534 0.8534 0.8586 0.8743 0.8743 0.8743 0.8901 0.8901 0.8901 0.9162 0.9162 0.9162 0.9162 0.9162 0.9319 0.9319 0.9319 0.9372 0.9529 0.9529 0.9529 0.9686 0.9686 0.9686 0.9791 0.9791 0.9895 0.9895 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.5.8.4 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0714 0.1429 0.3571 0.3571 0.3571 0.4286 0.5000 0.5714 0.6429 0.7857 0.7857 1.0000 1.0000 1.0000 0.0952 0.0952 0.1905 0.1905 0.2857 0.2857 0.3810 0.3810 0.4762 0.4762 0.5238 0.6190 0.6190 0.7619 0.7619 0.7619 1.0000 1.0000 1.0000 1.0000 1.0000 0.1250 0.1250 0.3125 0.3125 0.3125 0.4375 0.4375 0.5000 0.5625 0.6250 0.7500 0.7500 0.9375 0.9375 0.9375 1.0000 0.0952 0.0952 0.1905 0.1905 0.2857 0.2857 0.4762 0.4762 0.4762 0.4762 0.5714 0.5714 0.6190 0.6667 0.8095 0.8095 0.8095 0.8571 1.0000 1.0000 1.0000 0.0526 0.1053 0.1579 0.3684 0.3684 0.3684 0.3684 0.4737 0.4737 0.5263 0.5789 0.7368 0.7368 0.7368 0.9474 0.9474 0.9474 0.9474 1.0000 0.0476 0.1905 0.1905 0.1905 0.2381 0.3333 0.3333 0.4286 0.4286 0.5714 0.5714 0.5714 0.7143 0.7143 0.7143 0.8571 0.8571 0.8571 1.0000 1.0000 1.0000 0.0476 0.1905 0.1905 0.1905 0.2857 0.2857 0.4762 0.4762 0.4762 0.4762 0.5714 0.5714 0.7143 0.7143 0.7143 0.7619 0.8095 0.8571 1.0000 1.0000 1.0000 0.1500 0.1500 0.1500 0.2000 0.3000 0.3000 0.4000 0.4000 0.6000 0.6000 0.6000 0.6000 0.6500 0.7000 0.8000 0.8000 0.9000 0.9000 1.0000 1.0000 0.1875 0.1875 0.1875 0.2500 0.3750 0.3750 0.6250 0.6250 0.6250 0.6250 0.6875 0.8125 0.8125 0.8750 1.0000 1.0000 0.1364 0.1364 0.1364 0.1818 0.3182 0.3182 0.3182 0.4545 0.4545 0.4545 0.5000 0.6818 0.6818 0.6818 0.6818 0.7273 0.7727 0.9091 0.9091 0.9091 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.5.8.5 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.5.8.6 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.5.8.1 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(100) OVER ( ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 88.0000 89.0000 89.0000 90.0000 90.0000 91.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.5.8.2 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(101) OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 22.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.5.8.3 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(102) OVER ( ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 88.0000 89.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.5.8.4 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(103) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 22.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.5.8.5 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(104) OVER ( ORDER BY b%10,a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000 103.0000 104.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.5.8.6 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(105) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.5.8.7 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(105) OVER ( ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 88.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000 103.0000 104.0000 105.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+do_execsql_test 1.5.9.1 {
+  SELECT last_value(a+b) OVER ( ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2
+} {{}   {}   {}   {}   99   92   108   72   52   83   55   79   109   65   26
+  120   119   50   70   103   80   124   36   96   59   124   116   110   57
+  51   52   130   103   74   87   48   128   117   105   136   131   71   133
+  92   109   63   84   109   57   146   78   147   113   74   88   150   87
+  110   65   121   106   110   124   85   145   107   161   171   150   156
+  80   171   120   109   158   114   111   136   147   87   173   124   168
+  173   162   132   101   154   167   190   161   110   156   195   198   102
+  123   177   169   140   111   180   119   160   197   152   124   121   134
+  146   147   132   213   141   193   200   210   157   132   136   175   161
+  218   188   226   191   187   208   211   179   138   144   223   196   214
+  170   212   202   163   184   172   173   195   229   240   187   210   200
+  163   227   228   223   191   252   235   225   243   172   187   202   179
+  179   182   231   261   207   263   206   189   209   212   276   181   274
+  249   239   234   213   234   269   196   271   221   210   229   235   250
+  223   232   229   279}
+
+do_execsql_test 1.5.9.2 {
+  SELECT last_value(a+b) OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2
+} {{}   {}   {}   {}   147   106   109   168   134   218   191   212   229
+  240   {}   {}   {}   {}   92   109   105   136   146   65   156   132   154
+  102   123   119   160   152   146   147   136   {}   {}   {}   {}   79   63
+  84   78   120   87   162   124   141   138   227   228   {}   {}   {}   {}
+  124   57   130   92   57   110   114   136   147   167   110   180   193
+  191   252   187   179   {}   {}   {}   {}   80   116   117   71   80   171
+  173   177   157   161   179   214   225   182   209   {}   {}   {}   {}
+  103   74   131   133   113   74   87   145   190   161   169   140   111
+  132   213   187   208   {}   {}   {}   {}   108   65   26   70   51   52
+  128   109   121   124   85   107   150   195   226   172   173   {}   {}
+  {}   {}   119   50   124   96   110   87   48   110   173   124   197   211
+  144   196   195   200   {}   {}   {}   {}   52   83   103   36   88   171
+  158   156   198   121   210   132   {}   {}   {}   {}   99   72   55   120
+  59   109   150   161   111   101   200   175   188   170   202   163   184
+  163}
+
+do_execsql_test 1.5.9.3 {
+  SELECT last_value(a+b) OVER ( ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2
+} {{}   {}   {}   {}   65   102   87   138   57   181   80   111   26   48
+  144   207   36   121   132   101   163   172   196   119   136   63   124
+  179   110   179   182   74   132   189   51   52   85   216   163   134
+  123   210   78   141   57   187   71   87   172   173   50   224   88   59
+  111   170   109   213   223   146   147   84   114   191   206   221   157
+  161   209   229   74   140   107   187   207   212   124   202   52   232
+  55   184   229   106   132   152   120   92   110   179   235   65   70
+  87   110   195   200   175   234   160   234   136   80   113   187   109
+  121   124   196   156   210   239   250   72   109   188   202   191   105
+  154   79   231   147   225   103   161   169   223   96   83   249   212
+  162   227   228   167   180   193   117   177   214   145   208   235   150
+  110   211   103   158   200   168   229   92   156   243   280   279   116
+  173   269   271   131   133   223   128   173   197   210   99   150   161
+  147   218   240   109   136   146   261   263   124   130   252   171   190
+  213   274   108   195   226   119   124}
+
+do_execsql_test 1.5.9.4 {
+  SELECT last_value(a+b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2
+} {{}   {}   {}   {}   196   134   109   213   223   106   234   191   212
+  168   {}   {}   {}   {}   65   102   119   136   123   210   146   147
+  132   152   160   105   154   92   156   243   109   {}   {}   {}   {}   87
+  138   63   124   179   78   141   84   120   234   79   231   {}   {}   {}
+  {}   57   181   110   179   57   187   114   191   206   221   92   110
+  136   147   167   180   193   {}   {}   {}   {}   80   182   71   157   161
+  209   229   179   235   80   225   117   177   214   116   {}   {}   {}
+  {}   111   74   132   189   87   74   140   113   187   103   161   169
+  145   208   235   131   133   {}   {}   {}   {}   26   51   52   85   172
+  173   107   187   207   212   65   70   109   121   124   223   150   {}
+  {}   {}   {}   48   144   207   216   50   224   124   202   87   110   195
+  200   196   96   110   211   {}   {}   {}   {}   36   121   132   88   52
+  232   156   210   239   250   83   103   {}   {}   {}   {}   101   163
+  172   163   59   111   170   55   184   229   175   72   109   188   202
+  249   200   99}
+
+do_execsql_test 1.5.9.5 {
+  SELECT last_value(a+b) OVER ( ORDER BY b%10,a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2
+} {{}   {}   {}   {}   147   106   109   168   134   218   191   212   229
+  240   213   234   196   223   92   109   105   136   146   65   156   132
+  154   102   123   119   160   152   146   147   136   243   261   263   210
+  79   63   84   78   120   87   162   124   141   138   227   228   179
+  231   234   280   124   57   130   92   57   110   114   136   147   167
+  110   180   193   191   252   187   179   206   181   221   279   80   116
+  117   71   80   171   173   177   157   161   179   214   225   182   209
+  269   271   235   229   103   74   131   133   113   74   87   145   190
+  161   169   140   111   132   213   187   208   223   235   189   274   108
+  65   26   70   51   52   128   109   121   124   85   107   150   195   226
+  172   173   187   223   207   212   119   50   124   96   110   87   48
+  110   173   124   197   211   144   196   195   200   202   224   216   207
+  52   83   103   36   88   171   158   156   198   121   210   132   210
+  239   250   232   99   72   55   120   59   109   150   161   111   101
+  200   175   188   170   202   163   184   163}
+
+do_execsql_test 1.5.9.6 {
+  SELECT last_value(a+b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.5.10.1 {
+  SELECT nth_value(b,b+1) OVER (ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   39   {}   {}   {}   {}
+  {}   {}   {}   91   {}   {}   {}   {}   {}   {}   54   54   {}   {}   {}
+  {}   62   {}   {}   {}   {}   {}   23   {}   {}   {}   97   86   {}   59
+  {}   84   {}   {}   78   65   {}   16   90   81   {}   59   56   {}   54
+  {}   85   {}   {}   {}   {}   38   {}   32   47   {}   74   35   47   98
+  96   {}   24   {}   {}   29   12   46   36   53   {}   81   27   56   {}
+  {}   81   93   63   81   91   68   53   99   89   13   12   97   91   29
+  7   7   78   35   84   53   84   58   61   91   99   15   61   98   16   5
+  75   56   2   37   3   96   62   95   43   63   35   78   16   67   43   16
+  16   90   72   98   85   56   90   46   29   29   4   74   74   2   76   41
+  46   77   24   27   97   46   89   1   85   1   74   78   61   85   51   59
+  35   30   56   25   47   28   73   6   73   74   93   43   3   56   47   85
+  61   61   93   9   97   62}
+
+do_execsql_test 1.5.10.2 {
+  SELECT nth_value(b,b+1) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   91   {}   {}   {}   {}   {}   {}
+  11   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   32
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   43   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   15   {}
+  {}   {}   {}   {}   {}   55   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   47   {}   {}   {}   {}
+  {}   {}   47   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   9   9   {}   {}   {}}
+
+do_execsql_test 1.5.10.3 {
+  SELECT nth_value(b,b+1) OVER ( ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   5   6   6   6   7
+  7   7   7   7   7   8   8   8   8   8   8   9   9   9   9   9   9   9   11
+  11   12   12   12   12   12   12   13   13   14   14   15   15   15   15
+  15   15   16   16   16   16   16   16   17   17   17   17   19   19   19
+  19   20   20   21   21   21   21   21   21   22   22   22   22   22   23
+  23   23   24   25   25   26   26   27   27   27   27   27   27   29   29
+  29   30   30   30   31   31   31   31   31   32   33   33   33   33   33
+  33   33   33   33   33   33   34   34   34   34   34   34   34   35   35
+  36   36   36   37   37   37   37   37   37   38   38   38   38   38   38
+  39   39   39   39   39   40   41   41   41   41   41   42   43   43   43
+  43   43   44   44   44   44   46   46   46   47   47   47   47   47   47
+  47   47   47   47   47   49   49   49   50   51   51   51   52   52   52
+  53   53   54   54   55   55}
+
+do_execsql_test 1.5.10.4 {
+  SELECT nth_value(b,b+1) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.5.10.5 {
+  SELECT nth_value(b,b+1) OVER ( ORDER BY b%10,a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   40   {}   {}   {}   40   {}   50   {}   {}   {}   {}
+  50   {}   {}   {}   41   {}   10   91   61   {}   30   {}   10   61   30
+  {}   {}   10   {}   {}   {}   {}   1   {}   22   80   22   91   93   {}
+  {}   30   {}   {}   91   {}   1   30   91   80   91   {}   43   {}   {}
+  21   20   {}   {}   74   21   21   2   74   33   81   21   {}   64   2   21
+  93   62   14   14   3   91   11   24   55   93   93   62   90   91   55   3
+  24   14   24   91   55   15   72   60   72   61   61   34   43   43   43
+  61   12   4   15   15   51   51   12   23   12   12   25   41   25   13
+  94   12   70   12   84   32   84   94   70   33   12   12   32   41   91
+  70   22   33   84   80   31   75   84   53   75   80   84   80   53   53
+  53   22   44   63   42   95   31   63   44   44   31   90   74   52   63
+  31   63   1   42   90   90   95   3   42}
+
+do_execsql_test 1.5.10.6 {
+  SELECT nth_value(b,b+1) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.5.11.1 {
+  SELECT first_value(b) OVER (ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING) FROM t2
+} {{}   {}   {}   {}   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89}
+
+do_execsql_test 1.5.11.2 {
+  SELECT first_value(b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING) FROM t2
+} {{}   {}   {}   {}   90   90   90   90   90   90   90   90   90   90   {}
+  {}   {}   {}   81   81   81   81   81   81   81   81   81   81   81   81
+  81   81   81   81   81   {}   {}   {}   {}   62   62   62   62   62   62
+  62   62   62   62   62   62   {}   {}   {}   {}   93   93   93   93   93
+  93   93   93   93   93   93   93   93   93   93   93   93   {}   {}   {}
+  {}   54   54   54   54   54   54   54   54   54   54   54   54   54   54
+  54   {}   {}   {}   {}   65   65   65   65   65   65   65   65   65   65
+  65   65   65   65   65   65   65   {}   {}   {}   {}   96   96   96   96
+  96   96   96   96   96   96   96   96   96   96   96   96   96   {}   {}
+  {}   {}   97   97   97   97   97   97   97   97   97   97   97   97   97
+  97   97   97   {}   {}   {}   {}   38   38   38   38   38   38   38   38
+  38   38   38   38   {}   {}   {}   {}   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89}
+
+do_execsql_test 1.5.11.3 {
+  SELECT first_value(b) OVER ( ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2
+} {{}   {}   {}   {}   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1}
+
+do_execsql_test 1.5.11.4 {
+  SELECT first_value(b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2
+} {{}   {}   {}   {}   10   10   10   10   10   10   10   10   10   10   {}
+  {}   {}   {}   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   {}   {}   {}   {}   2   2   2   2   2   2   2   2   2   2   2   2
+  {}   {}   {}   {}   3   3   3   3   3   3   3   3   3   3   3   3   3   3
+  3   3   3   {}   {}   {}   {}   4   4   4   4   4   4   4   4   4   4   4
+  4   4   4   4   {}   {}   {}   {}   5   5   5   5   5   5   5   5   5   5
+  5   5   5   5   5   5   5   {}   {}   {}   {}   6   6   6   6   6   6   6
+  6   6   6   6   6   6   6   6   6   6   {}   {}   {}   {}   7   7   7   7
+  7   7   7   7   7   7   7   7   7   7   7   7   {}   {}   {}   {}   8   8
+  8   8   8   8   8   8   8   8   8   8   {}   {}   {}   {}   9   9   9   9
+  9   9   9   9   9   9   9   9   9   9   9   9   9   9}
+
+do_execsql_test 1.5.11.5 {
+  SELECT first_value(b) OVER ( ORDER BY b%10,a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2
+} {{}   {}   {}   {}   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90}
+
+do_execsql_test 1.5.11.6 {
+  SELECT first_value(b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.5.12.1 {
+  SELECT lead(b,b) OVER (ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING) FROM t2
+} {96   9   11   89   32   53   91   30   51   56   54   73   22   59   75
+  74   78   8   16   65   15   8   31   87   90   12   32   96   74   76   37
+  85   90   15   35   2   60   36   75   9   51   47   63   51   90   26   42
+  26   8   76   80   90   37   87   56   79   5   87   8   2   39   73   64
+  36   90   72   78   36   73   51   33   20   41   2   26   37   33   8   14
+  33   81   55   1   9   12   39   64   87   72   34   82   21   34   99   62
+  74   41   69   22   75   27   58   8   79   77   26   26   55   {}   29
+  30   7   {}   66   55   2   34   64   {}   33   {}   44   84   {}   {}   95
+  85   19   {}   83   {}   91   {}   {}   9   50   91   33   34   {}   {}
+  84   {}   7   9   {}   {}   {}   44   {}   {}   {}   {}   91   84   {}   95
+  95   52   {}   {}   {}   {}   {}   21   {}   {}   {}   58   {}   {}   {}
+  {}   {}   {}   {}   83   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}}
+
+do_execsql_test 1.5.12.2 {
+  SELECT lead(b,b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   81   {}   {}   {}   21   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   62   {}   {}   {}   12   {}   {}   {}   72
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   53   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   34   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   95   {}   {}   {}   {}   {}   {}   85   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   56   {}   36   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   57   {}   {}   {}   {}   {}   7   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   8   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.5.12.3 {
+  SELECT lead(b,b) OVER ( ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2
+} {1   2   3   3   5   6   7   8   8   9   9   10   11   12   12   13   13
+  14   15   16   16   17   19   20   21   22   23   24   25   26   27   27
+  28   29   30   31   32   33   33   33   34   34   35   36   36   36   37
+  38   39   39   40   41   42   43   43   44   46   47   47   47   49   50
+  52   53   54   55   56   56   57   58   58   58   59   59   59   60   61
+  62   62   64   65   65   67   69   70   72   72   73   74   74   75   75
+  75   77   78   80   81   81   83   84   84   85   85   85   87   88   89
+  89   89   90   90   91   91   91   93   93   94   95   95   96   97   97
+  98   99   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.5.12.4 {
+  SELECT lead(b,b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2
+} {80   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   1
+  11   81   81   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   12   12   72   82   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   13   23   73   73   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   34   84   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   35   85   85   95   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   36   86   96   96   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   37   47
+  47   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   58   58   68   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   39   49   59   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.5.12.5 {
+  SELECT lead(b,b) OVER ( ORDER BY b%10,a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2
+} {34   72   91   74   21   55   23   94   84   95   2   13   61   22   55
+  55   94   85   75   81   65   73   74   21   72   12   94   33   63   73
+  72   96   36   76   3   25   62   3   73   34   12   46   43   93   72   16
+  86   63   15   65   36   77   24   57   25   53   95   34   95   16   97
+  74   97   67   25   98   44   34   65   54   5   68   96   28   47   95
+  34   39   8   38   6   46   96   28   47   95   56   39   99   97   76   8
+  26   9   79   27   95   16   29   {}   58   58   77   85   56   {}   98
+  29   {}   19   96   {}   {}   78   56   98   36   97   {}   89   89   29
+  47   78   {}   {}   {}   38   68   58   {}   58   38   {}   98   {}   {}
+  {}   39   57   9   {}   79   {}   {}   7   {}   {}   {}   9   29   38   78
+  {}   {}   {}   8   39   {}   {}   {}   {}   59   {}   99   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.5.12.6 {
+  SELECT lead(b,b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.5.13.1 {
+  SELECT lag(b,b) OVER (ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   38   {}   {}   {}   {}
+  {}   {}   {}   6   {}   {}   {}   {}   {}   81   46   6   {}   {}   {}   {}
+  23   {}   {}   {}   {}   {}   27   {}   {}   {}   35   6   {}   12   {}
+  23   {}   {}   61   84   {}   93   39   47   {}   54   46   96   56   {}
+  16   {}   {}   {}   {}   89   {}   16   43   {}   85   56   29   99   53
+  {}   59   {}   {}   91   59   53   84   99   {}   93   63   47   {}   {}
+  98   33   67   35   75   1   23   13   55   27   75   98   35   73   63   2
+  21   27   13   24   86   23   84   31   20   94   61   65   75   23   36
+  94   55   90   41   77   96   56   29   40   12   89   63   11   5   73
+  79   1   16   28   31   73   5   39   53   63   41   11   40   2   13   33
+  9   29   90   47   72   9   73   30   44   33   74   93   29   74   42   34
+  63   41   34   96   47   77   1   36   74   72   14   36   26   77   9   72
+  64   8   91   31   52   30}
+
+do_execsql_test 1.5.13.2 {
+  SELECT lag(b,b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   61   {}   81   {}   {}   {}   {}
+  1   {}   {}   {}   {}   {}   {}   {}   {}   {}   22   {}   {}   {}   12
+  {}   {}   62   {}   {}   {}   {}   {}   {}   {}   23   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   43   {}   23   {}   {}   {}   {}   {}
+  {}   54   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   75   {}
+  {}   {}   {}   {}   {}   55   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   47   {}   {}   {}   {}
+  {}   27   7   {}   {}   {}   {}   {}   {}   {}   {}   {}   68   {}   8   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   89   {}   {}
+  {}   {}   {}   {}   {}   29   9   {}   {}   {}}
+
+do_execsql_test 1.5.13.3 {
+  SELECT lag(b,b) OVER ( ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2
+} {{}   1   1   1   1   2   2   2   2   2   2   3   3   3   4   4   5   6   6
+  6   7   7   7   7   7   8   8   8   8   8   8   9   9   9   9   9   9   9
+  9   9   9   10   10   10   10   11   11   11   11   11   12   12   12   12
+  13   13   13   13   13   14   15   15   15   15   16   16   16   16   16
+  17   19   20   20   21   21   21   21   22   22   22   22   23   23   23
+  23   23   24   23   24   24   25   26   26   26   26   26   26   26   26
+  26   26   26   27   27   27   27   28   29   29   29   29   30   30   30
+  30   30   30   31   31   31   31   31   32   32   32   32   32   32   31
+  32   33   33   33   33   33   33   34   34   34   34   34   34   34   34
+  35   35   35   35   35   36   36   36   36   36   36   36   37   37   37
+  38   38   38   38   38   38   39   39   39   39   40   40   41   41   42
+  43   42   43   43   43   43   44   44   44   46   46   46   47   47   47
+  47   47}
+
+do_execsql_test 1.5.13.4 {
+  SELECT lag(b,b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  1   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.5.13.5 {
+  SELECT lag(b,b) OVER ( ORDER BY b%10,a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   61   80   81   {}   {}   {}   {}
+  1   {}   {}   {}   30   {}   21   90   61   {}   22   {}   11   41   12
+  {}   {}   62   {}   {}   {}   {}   31   {}   50   23   30   21   90   {}
+  {}   62   {}   {}   81   {}   22   43   62   23   32   {}   91   {}   90
+  93   54   {}   {}   90   72   12   22   90   81   83   23   80   20   72
+  43   51   33   80   90   2   34   54   1   20   62   12   13   75   44   30
+  93   91   1   21   55   61   61   13   85   3   65   65   91   73   33   93
+  55   84   62   31   11   65   35   85   33   55   15   12   75   22   3
+  73   65   36   85   43   95   43   13   47   44   65   65   96   36   27
+  7   46   34   94   47   36   73   34   35   73   68   24   8   75   85   75
+  66   34   95   36   84   77   46   34   84   47   89   65   36   16   38
+  76   58   57   29   9   44   56   17}
+
+do_execsql_test 1.5.13.6 {
+  SELECT lag(b,b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.5.14.1 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING) FROM t2
+} {{}   {}   {}   {}   89   89.81   89.81.96   89.81.96.59   89.81.96.59.38
+  89.81.96.59.38.68   89.81.96.59.38.68.39   89.81.96.59.38.68.39.62
+  89.81.96.59.38.68.39.62.91   89.81.96.59.38.68.39.62.91.46
+  89.81.96.59.38.68.39.62.91.46.6   89.81.96.59.38.68.39.62.91.46.6.99
+  89.81.96.59.38.68.39.62.91.46.6.99.97
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41
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+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83}
+
+do_execsql_test 1.5.14.2 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING) FROM t2
+} {{}   {}   {}   {}   90   90.40   90.40.30   90.40.30.80   90.40.30.80.20
+  90.40.30.80.20.90   90.40.30.80.20.90.60   90.40.30.80.20.90.60.70
+  90.40.30.80.20.90.60.70.80   90.40.30.80.20.90.60.70.80.90   {}   {}   {}
+  {}   81   81.91   81.91.61   81.91.61.91   81.91.61.91.91
+  81.91.61.91.91.1   81.91.61.91.91.1.81   81.91.61.91.91.1.81.41
+  81.91.61.91.91.1.81.41.61   81.91.61.91.91.1.81.41.61.1
+  81.91.61.91.91.1.81.41.61.1.21   81.91.61.91.91.1.81.41.61.1.21.11
+  81.91.61.91.91.1.81.41.61.1.21.11.51
+  81.91.61.91.91.1.81.41.61.1.21.11.51.41
+  81.91.61.91.91.1.81.41.61.1.21.11.51.41.31
+  81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31
+  81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11   {}   {}   {}   {}   62
+  62.12   62.12.32   62.12.32.22   62.12.32.22.42   62.12.32.22.42.2
+  62.12.32.22.42.2.72   62.12.32.22.42.2.72.12   62.12.32.22.42.2.72.12.22
+  62.12.32.22.42.2.72.12.22.2   62.12.32.22.42.2.72.12.22.2.72
+  62.12.32.22.42.2.72.12.22.2.72.72   {}   {}   {}   {}   93   93.23
+  93.23.93   93.23.93.43   93.23.93.43.3   93.23.93.43.3.43
+  93.23.93.43.3.43.33   93.23.93.43.3.43.33.53   93.23.93.43.3.43.33.53.63
+  93.23.93.43.3.43.33.53.63.73   93.23.93.43.3.43.33.53.63.73.13
+  93.23.93.43.3.43.33.53.63.73.13.73   93.23.93.43.3.43.33.53.63.73.13.73.73
+  93.23.93.43.3.43.33.53.63.73.13.73.73.33
+  93.23.93.43.3.43.33.53.63.73.13.73.73.33.93
+  93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23
+  93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13   {}   {}   {}   {}   54
+  54.84   54.84.74   54.84.74.24   54.84.74.24.4   54.84.74.24.4.94
+  54.84.74.24.4.94.84   54.84.74.24.4.94.84.74   54.84.74.24.4.94.84.74.34
+  54.84.74.24.4.94.84.74.34.34   54.84.74.24.4.94.84.74.34.34.44
+  54.84.74.24.4.94.84.74.34.34.44.74   54.84.74.24.4.94.84.74.34.34.44.74.64
+  54.84.74.24.4.94.84.74.34.34.44.74.64.14
+  54.84.74.24.4.94.84.74.34.34.44.74.64.14.34   {}   {}   {}   {}   65
+  65.35   65.35.85   65.35.85.85   65.35.85.85.55   65.35.85.85.55.15
+  65.35.85.85.55.15.25   65.35.85.85.55.15.25.75   65.35.85.85.55.15.25.75.95
+  65.35.85.85.55.15.25.75.95.65   65.35.85.85.55.15.25.75.95.65.65
+  65.35.85.85.55.15.25.75.95.65.65.35   65.35.85.85.55.15.25.75.95.65.65.35.5
+  65.35.85.85.55.15.25.75.95.65.65.35.5.15
+  65.35.85.85.55.15.25.75.95.65.65.35.5.15.95
+  65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55
+  65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75   {}   {}   {}   {}   96
+  96.46   96.46.6   96.46.6.46   96.46.6.46.16   96.46.6.46.16.16
+  96.46.6.46.16.16.86   96.46.6.46.16.16.86.56   96.46.6.46.16.16.86.56.56
+  96.46.6.46.16.16.86.56.56.56   96.46.6.46.16.16.86.56.56.56.16
+  96.46.6.46.16.16.86.56.56.56.16.36   96.46.6.46.16.16.86.56.56.56.16.36.76
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96.96
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26   {}   {}   {}   {}   97
+  97.27   97.27.97   97.27.97.67   97.27.97.67.77   97.27.97.67.77.47
+  97.27.97.67.77.47.7   97.27.97.67.77.47.7.47   97.27.97.67.77.47.7.47.87
+  97.27.97.67.77.47.7.47.87.37   97.27.97.67.77.47.7.47.87.37.87
+  97.27.97.67.77.47.7.47.87.37.87.77   97.27.97.67.77.47.7.47.87.37.87.77.7
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47   {}   {}   {}   {}   38
+  38.68   38.68.78   38.68.78.8   38.68.78.8.28   38.68.78.8.28.98
+  38.68.78.8.28.98.78   38.68.78.8.28.98.78.58   38.68.78.8.28.98.78.58.98
+  38.68.78.8.28.98.78.58.98.8   38.68.78.8.28.98.78.58.98.8.88
+  38.68.78.8.28.98.78.58.98.8.88.8   {}   {}   {}   {}   89   89.59
+  89.59.39   89.59.39.99   89.59.39.99.29   89.59.39.99.29.59
+  89.59.39.99.29.59.89   89.59.39.99.29.59.89.89   89.59.39.99.29.59.89.89.29
+  89.59.39.99.29.59.89.89.29.9   89.59.39.99.29.59.89.89.29.9.79
+  89.59.39.99.29.59.89.89.29.9.79.49   89.59.39.99.29.59.89.89.29.9.79.49.59
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9}
+
+do_execsql_test 1.5.14.3 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2
+} {{}   {}   {}   {}   1   1.1   1.1.2   1.1.2.2   1.1.2.2.3   1.1.2.2.3.3
+  1.1.2.2.3.3.4   1.1.2.2.3.3.4.5   1.1.2.2.3.3.4.5.6   1.1.2.2.3.3.4.5.6.7
+  1.1.2.2.3.3.4.5.6.7.7   1.1.2.2.3.3.4.5.6.7.7.7   1.1.2.2.3.3.4.5.6.7.7.7.8
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8   1.1.2.2.3.3.4.5.6.7.7.7.8.8.8
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9   1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41
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+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97}
+
+do_execsql_test 1.5.14.4 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2
+} {{}   {}   {}   {}   10   10.20   10.20.30   10.20.30.30   10.20.30.30.30
+  10.20.30.30.30.40   10.20.30.30.30.40.50   10.20.30.30.30.40.50.60
+  10.20.30.30.30.40.50.60.70   10.20.30.30.30.40.50.60.70.80   {}   {}   {}
+  {}   1   1.1   1.1.11   1.1.11.11   1.1.11.11.21   1.1.11.11.21.21
+  1.1.11.11.21.21.31   1.1.11.11.21.21.31.31   1.1.11.11.21.21.31.31.41
+  1.1.11.11.21.21.31.31.41.41   1.1.11.11.21.21.31.31.41.41.51
+  1.1.11.11.21.21.31.31.41.41.51.61   1.1.11.11.21.21.31.31.41.41.51.61.61
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81.81
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91   {}   {}   {}   {}   2
+  2.2   2.2.12   2.2.12.12   2.2.12.12.12   2.2.12.12.12.22
+  2.2.12.12.12.22.22   2.2.12.12.12.22.22.32   2.2.12.12.12.22.22.32.42
+  2.2.12.12.12.22.22.32.42.52   2.2.12.12.12.22.22.32.42.52.62
+  2.2.12.12.12.22.22.32.42.52.62.62   {}   {}   {}   {}   3   3.3   3.3.13
+  3.3.13.13   3.3.13.13.23   3.3.13.13.23.23   3.3.13.13.23.23.33
+  3.3.13.13.23.23.33.33   3.3.13.13.23.23.33.33.33
+  3.3.13.13.23.23.33.33.33.33   3.3.13.13.23.23.33.33.33.33.43
+  3.3.13.13.23.23.33.33.33.33.43.43   3.3.13.13.23.23.33.33.33.33.43.43.53
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63.73
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63.73.73
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63.73.73.73   {}   {}   {}   {}   4
+  4.14   4.14.24   4.14.24.34   4.14.24.34.34   4.14.24.34.34.34
+  4.14.24.34.34.34.34   4.14.24.34.34.34.34.44   4.14.24.34.34.34.34.44.44
+  4.14.24.34.34.34.34.44.44.54   4.14.24.34.34.34.34.44.44.54.64
+  4.14.24.34.34.34.34.44.44.54.64.74   4.14.24.34.34.34.34.44.44.54.64.74.74
+  4.14.24.34.34.34.34.44.44.54.64.74.74.74
+  4.14.24.34.34.34.34.44.44.54.64.74.74.74.84   {}   {}   {}   {}   5   5.15
+  5.15.15   5.15.15.15   5.15.15.15.25   5.15.15.15.25.35
+  5.15.15.15.25.35.35   5.15.15.15.25.35.35.55   5.15.15.15.25.35.35.55.55
+  5.15.15.15.25.35.35.55.55.65   5.15.15.15.25.35.35.55.55.65.65
+  5.15.15.15.25.35.35.55.55.65.65.65   5.15.15.15.25.35.35.55.55.65.65.65.75
+  5.15.15.15.25.35.35.55.55.65.65.65.75.75
+  5.15.15.15.25.35.35.55.55.65.65.65.75.75.75
+  5.15.15.15.25.35.35.55.55.65.65.65.75.75.75.85
+  5.15.15.15.25.35.35.55.55.65.65.65.75.75.75.85.85   {}   {}   {}   {}   6
+  6.16   6.16.16   6.16.16.16   6.16.16.16.26   6.16.16.16.26.26
+  6.16.16.16.26.26.36   6.16.16.16.26.26.36.36   6.16.16.16.26.26.36.36.36
+  6.16.16.16.26.26.36.36.36.36   6.16.16.16.26.26.36.36.36.36.46
+  6.16.16.16.26.26.36.36.36.36.46.46   6.16.16.16.26.26.36.36.36.36.46.46.56
+  6.16.16.16.26.26.36.36.36.36.46.46.56.56
+  6.16.16.16.26.26.36.36.36.36.46.46.56.56.56
+  6.16.16.16.26.26.36.36.36.36.46.46.56.56.56.66
+  6.16.16.16.26.26.36.36.36.36.46.46.56.56.56.66.76   {}   {}   {}   {}   7
+  7.7   7.7.7   7.7.7.17   7.7.7.17.27   7.7.7.17.27.27   7.7.7.17.27.27.37
+  7.7.7.17.27.27.37.37   7.7.7.17.27.27.37.37.47   7.7.7.17.27.27.37.37.47.47
+  7.7.7.17.27.27.37.37.47.47.47   7.7.7.17.27.27.37.37.47.47.47.47
+  7.7.7.17.27.27.37.37.47.47.47.47.57
+  7.7.7.17.27.27.37.37.47.47.47.47.57.67
+  7.7.7.17.27.27.37.37.47.47.47.47.57.67.77
+  7.7.7.17.27.27.37.37.47.47.47.47.57.67.77.77   {}   {}   {}   {}   8   8.8
+  8.8.8   8.8.8.28   8.8.8.28.38   8.8.8.28.38.38   8.8.8.28.38.38.58
+  8.8.8.28.38.38.58.58   8.8.8.28.38.38.58.58.58   8.8.8.28.38.38.58.58.58.58
+  8.8.8.28.38.38.58.58.58.58.68   8.8.8.28.38.38.58.58.58.58.68.78   {}   {}
+  {}   {}   9   9.9   9.9.9   9.9.9.19   9.9.9.19.29   9.9.9.19.29.29
+  9.9.9.19.29.29.29   9.9.9.19.29.29.29.39   9.9.9.19.29.29.29.39.39
+  9.9.9.19.29.29.29.39.39.39   9.9.9.19.29.29.29.39.39.39.49
+  9.9.9.19.29.29.29.39.39.39.49.59   9.9.9.19.29.29.29.39.39.39.49.59.59
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89}
+
+do_execsql_test 1.5.14.5 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( ORDER BY b%10,a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING ) FROM t2
+} {{}   {}   {}   {}   90   90.40   90.40.30   90.40.30.80   90.40.30.80.20
+  90.40.30.80.20.90   90.40.30.80.20.90.60   90.40.30.80.20.90.60.70
+  90.40.30.80.20.90.60.70.80   90.40.30.80.20.90.60.70.80.90
+  90.40.30.80.20.90.60.70.80.90.30   90.40.30.80.20.90.60.70.80.90.30.50
+  90.40.30.80.20.90.60.70.80.90.30.50.10
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33
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+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24
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+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9}
+
+do_execsql_test 1.5.14.6 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.5.14.7 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (win1 ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING) 
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a)
+    ORDER BY 1
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.5.14.8 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (win1 ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING) 
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a ORDER BY b%10)
+    ORDER BY 1
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.5.14.9 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER win2
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a ORDER BY b%10),
+           win2 AS (win1 ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING)
+    ORDER BY 1
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.5.15.1 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE a%2=0) OVER win FROM t2
+    WINDOW win AS (ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING)
+} {0 {}   0 {}   0 {}   0 {}   1 89   2 89   3 89.96   4 89.96   5 89.96.38
+  6 89.96.38   7 89.96.38.39   8 89.96.38.39   9 89.96.38.39.91
+  10 89.96.38.39.91   11 89.96.38.39.91.6   12 89.96.38.39.91.6
+  13 89.96.38.39.91.6.97   14 89.96.38.39.91.6.97   15 89.96.38.39.91.6.97.46
+  16 89.96.38.39.91.6.97.46   17 89.96.38.39.91.6.97.46.54
+  18 89.96.38.39.91.6.97.46.54   19 89.96.38.39.91.6.97.46.54.8
+  20 89.96.38.39.91.6.97.46.54.8   21 89.96.38.39.91.6.97.46.54.8.29
+  22 89.96.38.39.91.6.97.46.54.8.29   23 89.96.38.39.91.6.97.46.54.8.29.84
+  24 89.96.38.39.91.6.97.46.54.8.29.84
+  25 89.96.38.39.91.6.97.46.54.8.29.84.23
+  26 89.96.38.39.91.6.97.46.54.8.29.84.23
+  27 89.96.38.39.91.6.97.46.54.8.29.84.23.16
+  28 89.96.38.39.91.6.97.46.54.8.29.84.23.16
+  29 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65
+  30 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65
+  31 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47
+  32 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47
+  33 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86
+  34 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86
+  35 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61
+  36 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61
+  37 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85
+  38 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85
+  39 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85
+  40 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85
+  41 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59
+  42 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59
+  43 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32
+  44 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32
+  45 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3
+  46 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3
+  47 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22
+  48 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22
+  49 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55
+  50 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55
+  51 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28
+  52 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28
+  53 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25
+  54 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25
+  55 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1
+  56 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1
+  57 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40
+  58 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40
+  59 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56
+  60 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56
+  61 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75
+  62 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75
+  63 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89
+  64 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89
+  65 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76
+  66 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76
+  67 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4
+  68 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4
+  69 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42
+  70 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42
+  71 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78
+  72 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78
+  73 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29
+  74 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29
+  75 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63
+  76 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63
+  77 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87
+  78 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87
+  79 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80
+  80 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80
+  81 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72
+  82 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72
+  83 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9
+  84 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9
+  85 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73
+  86 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73
+  87 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65
+  88 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65
+  89 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58
+  90 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58
+  91 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98
+  92 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98
+  93 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21
+  94 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21
+  95 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65
+  96 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65
+  97 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5
+  98 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5
+  99 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11
+  100 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11
+  101 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87
+  102 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87
+  103 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12
+  104 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12
+  105 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20
+  106 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20
+  107 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31
+  108 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31
+  109 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95
+  110 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95
+  111 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73
+  112 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73
+  113 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88
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+  166 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15
+  167 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36
+  168 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36
+  169 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3
+  170 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3
+  171 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69
+  172 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69
+  173 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52
+  174 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52
+  175 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50
+  176 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50
+  177 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10
+  178 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10
+  179 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33
+  180 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33
+  181 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39
+  182 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39
+  183 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58
+  184 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58
+  185 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38
+  186 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38
+  187 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83}
+
+do_execsql_test 1.5.15.2 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE 0=1) OVER win FROM t2
+    WINDOW win AS (ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING)
+} {0 {}   0 {}   0 {}   0 {}   1 {}   2 {}   3 {}   4 {}   5 {}   6 {}   7 {}
+  8 {}   9 {}   10 {}   11 {}   12 {}   13 {}   14 {}   15 {}   16 {}   17 {}
+  18 {}   19 {}   20 {}   21 {}   22 {}   23 {}   24 {}   25 {}   26 {}
+  27 {}   28 {}   29 {}   30 {}   31 {}   32 {}   33 {}   34 {}   35 {}
+  36 {}   37 {}   38 {}   39 {}   40 {}   41 {}   42 {}   43 {}   44 {}
+  45 {}   46 {}   47 {}   48 {}   49 {}   50 {}   51 {}   52 {}   53 {}
+  54 {}   55 {}   56 {}   57 {}   58 {}   59 {}   60 {}   61 {}   62 {}
+  63 {}   64 {}   65 {}   66 {}   67 {}   68 {}   69 {}   70 {}   71 {}
+  72 {}   73 {}   74 {}   75 {}   76 {}   77 {}   78 {}   79 {}   80 {}
+  81 {}   82 {}   83 {}   84 {}   85 {}   86 {}   87 {}   88 {}   89 {}
+  90 {}   91 {}   92 {}   93 {}   94 {}   95 {}   96 {}   97 {}   98 {}
+  99 {}   100 {}   101 {}   102 {}   103 {}   104 {}   105 {}   106 {}
+  107 {}   108 {}   109 {}   110 {}   111 {}   112 {}   113 {}   114 {}
+  115 {}   116 {}   117 {}   118 {}   119 {}   120 {}   121 {}   122 {}
+  123 {}   124 {}   125 {}   126 {}   127 {}   128 {}   129 {}   130 {}
+  131 {}   132 {}   133 {}   134 {}   135 {}   136 {}   137 {}   138 {}
+  139 {}   140 {}   141 {}   142 {}   143 {}   144 {}   145 {}   146 {}
+  147 {}   148 {}   149 {}   150 {}   151 {}   152 {}   153 {}   154 {}
+  155 {}   156 {}   157 {}   158 {}   159 {}   160 {}   161 {}   162 {}
+  163 {}   164 {}   165 {}   166 {}   167 {}   168 {}   169 {}   170 {}
+  171 {}   172 {}   173 {}   174 {}   175 {}   176 {}   177 {}   178 {}
+  179 {}   180 {}   181 {}   182 {}   183 {}   184 {}   185 {}   186 {}
+  187 {}}
+
+do_execsql_test 1.5.15.3 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE 1=0) OVER win FROM t2
+    WINDOW win AS (PARTITION BY (a%10) ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING)
+} {0 {}   0 {}   0 {}   0 {}   1 {}   2 {}   3 {}   4 {}   5 {}   6 {}   7 {}
+  8 {}   9 {}   10 {}   11 {}   12 {}   13 {}   14 {}   15 {}   16 {}   0 {}
+  0 {}   0 {}   0 {}   1 {}   2 {}   3 {}   4 {}   5 {}   6 {}   7 {}   8 {}
+  9 {}   10 {}   11 {}   12 {}   13 {}   14 {}   15 {}   0 {}   0 {}   0 {}
+  0 {}   1 {}   2 {}   3 {}   4 {}   5 {}   6 {}   7 {}   8 {}   9 {}   10 {}
+  11 {}   12 {}   13 {}   14 {}   15 {}   0 {}   0 {}   0 {}   0 {}   1 {}
+  2 {}   3 {}   4 {}   5 {}   6 {}   7 {}   8 {}   9 {}   10 {}   11 {}
+  12 {}   13 {}   14 {}   15 {}   0 {}   0 {}   0 {}   0 {}   1 {}   2 {}
+  3 {}   4 {}   5 {}   6 {}   7 {}   8 {}   9 {}   10 {}   11 {}   12 {}
+  13 {}   14 {}   15 {}   0 {}   0 {}   0 {}   0 {}   1 {}   2 {}   3 {}
+  4 {}   5 {}   6 {}   7 {}   8 {}   9 {}   10 {}   11 {}   12 {}   13 {}
+  14 {}   15 {}   0 {}   0 {}   0 {}   0 {}   1 {}   2 {}   3 {}   4 {}
+  5 {}   6 {}   7 {}   8 {}   9 {}   10 {}   11 {}   12 {}   13 {}   14 {}
+  15 {}   0 {}   0 {}   0 {}   0 {}   1 {}   2 {}   3 {}   4 {}   5 {}   6 {}
+  7 {}   8 {}   9 {}   10 {}   11 {}   12 {}   13 {}   14 {}   15 {}   0 {}
+  0 {}   0 {}   0 {}   1 {}   2 {}   3 {}   4 {}   5 {}   6 {}   7 {}   8 {}
+  9 {}   10 {}   11 {}   12 {}   13 {}   14 {}   15 {}   0 {}   0 {}   0 {}
+  0 {}   1 {}   2 {}   3 {}   4 {}   5 {}   6 {}   7 {}   8 {}   9 {}   10 {}
+  11 {}   12 {}   13 {}   14 {}   15 {}}
+
+do_execsql_test 1.5.15.4 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE a%2=0) OVER win FROM t2
+    WINDOW win AS (PARTITION BY (a%10) ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 PRECEDING)
+} {0 {}   0 {}   0 {}   0 {}   1 89   2 89.6   3 89.6.29   4 89.6.29.47
+  5 89.6.29.47.59   6 89.6.29.47.59.28   7 89.6.29.47.59.28.75
+  8 89.6.29.47.59.28.75.78   9 89.6.29.47.59.28.75.78.72
+  10 89.6.29.47.59.28.75.78.72.98   11 89.6.29.47.59.28.75.78.72.98.87
+  12 89.6.29.47.59.28.75.78.72.98.87.73
+  13 89.6.29.47.59.28.75.78.72.98.87.73.96
+  14 89.6.29.47.59.28.75.78.72.98.87.73.96.74
+  15 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90
+  16 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75   0 {}   0 {}   0 {}
+  0 {}   1 {}   2 {}   3 {}   4 {}   5 {}   6 {}   7 {}   8 {}   9 {}   10 {}
+  11 {}   12 {}   13 {}   14 {}   15 {}   0 {}   0 {}   0 {}   0 {}   1 96
+  2 96.97   3 96.97.84   4 96.97.84.86   5 96.97.84.86.32
+  6 96.97.84.86.32.25   7 96.97.84.86.32.25.89   8 96.97.84.86.32.25.89.29
+  9 96.97.84.86.32.25.89.29.9   10 96.97.84.86.32.25.89.29.9.21
+  11 96.97.84.86.32.25.89.29.9.21.12   12 96.97.84.86.32.25.89.29.9.21.12.88
+  13 96.97.84.86.32.25.89.29.9.21.12.88.55
+  14 96.97.84.86.32.25.89.29.9.21.12.88.55.70
+  15 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58   0 {}   0 {}   0 {}   0 {}
+  1 {}   2 {}   3 {}   4 {}   5 {}   6 {}   7 {}   8 {}   9 {}   10 {}
+  11 {}   12 {}   13 {}   14 {}   15 {}   0 {}   0 {}   0 {}   0 {}   1 38
+  2 38.46   3 38.46.23   4 38.46.23.61   5 38.46.23.61.3   6 38.46.23.61.3.1
+  7 38.46.23.61.3.1.76   8 38.46.23.61.3.1.76.63   9 38.46.23.61.3.1.76.63.73
+  10 38.46.23.61.3.1.76.63.73.65   11 38.46.23.61.3.1.76.63.73.65.20
+  12 38.46.23.61.3.1.76.63.73.65.20.8
+  13 38.46.23.61.3.1.76.63.73.65.20.8.77
+  14 38.46.23.61.3.1.76.63.73.65.20.8.77.19
+  15 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9   0 {}   0 {}   0 {}   0 {}
+  1 {}   2 {}   3 {}   4 {}   5 {}   6 {}   7 {}   8 {}   9 {}   10 {}
+  11 {}   12 {}   13 {}   14 {}   15 {}   0 {}   0 {}   0 {}   0 {}   1 39
+  2 39.54   3 39.54.16   4 39.54.16.85   5 39.54.16.85.22
+  6 39.54.16.85.22.40   7 39.54.16.85.22.40.4   8 39.54.16.85.22.40.4.87
+  9 39.54.16.85.22.40.4.87.65   10 39.54.16.85.22.40.4.87.65.5
+  11 39.54.16.85.22.40.4.87.65.5.31   12 39.54.16.85.22.40.4.87.65.5.31.49
+  13 39.54.16.85.22.40.4.87.65.5.31.49.2
+  14 39.54.16.85.22.40.4.87.65.5.31.49.2.26
+  15 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72   0 {}   0 {}   0 {}   0 {}
+  1 {}   2 {}   3 {}   4 {}   5 {}   6 {}   7 {}   8 {}   9 {}   10 {}
+  11 {}   12 {}   13 {}   14 {}   15 {}   0 {}   0 {}   0 {}   0 {}   1 91
+  2 91.8   3 91.8.65   4 91.8.65.85   5 91.8.65.85.55   6 91.8.65.85.55.56
+  7 91.8.65.85.55.56.42   8 91.8.65.85.55.56.42.80
+  9 91.8.65.85.55.56.42.80.58   10 91.8.65.85.55.56.42.80.58.11
+  11 91.8.65.85.55.56.42.80.58.11.95   12 91.8.65.85.55.56.42.80.58.11.95.90
+  13 91.8.65.85.55.56.42.80.58.11.95.90.85
+  14 91.8.65.85.55.56.42.80.58.11.95.90.85.47
+  15 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33   0 {}   0 {}   0 {}   0 {}
+  1 {}   2 {}   3 {}   4 {}   5 {}   6 {}   7 {}   8 {}   9 {}   10 {}
+  11 {}   12 {}   13 {}   14 {}   15 {}}
+
+do_execsql_test 1.6.2.1 {
+  SELECT max(b) OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2
+} {{}   {}   89   89   96   96   96   68   68   68   91   91   91   99   99
+  99   97   78   78   97   97   97   67   93   93   93   84   77   23   93
+  93   93   65   47   86   86   86   91   91   91   85   85   85   59   59
+  56   56   91   91   91   90   90   55   89   89   89   47   56   56   56
+  56   56   75   75   89   98   98   98   81   94   94   94   78   78   78
+  53   63   63   87   87   87   84   84   84   72   61   73   95   95   95
+  65   96   98   98   98   74   74   74   65   73   73   73   87   87   87
+  41   20   31   31   31   95   95   95   79   88   88   88   34   49   49
+  90   90   96   96   96   75   77   77   77   44   85   85   85   74   74
+  70   70   59   39   39   47   80   90   90   90   58   58   72   72   72
+  72   93   93   93   81   81   81   37   37   37   14   62   91   91   91
+  91   91   34   36   99   99   99   95   95   69   58   52   84   84   84
+  84   84   39   44   58   58   58   38   83   83   83}
+
+do_execsql_test 1.6.2.2 {
+  SELECT min(b) OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2
+} {{}   {}   89   81   81   59   38   38   38   39   39   46   6   6   6   27
+  27   27   46   54   8   8   8   29   29   77   23   16   16   16   16   35
+  35   7   7   7   61   61   61   24   24   24   43   12   12   12   3   3
+  3   22   22   15   15   15   25   25   1   1   1   40   40   16   16   16
+  36   36   76   76   4   4   4   30   30   30   29   29   29   2   2   2
+  37   37   72   41   9   9   9   61   65   13   13   13   58   1   1   1
+  21   35   5   5   5   11   11   41   12   8   8   8   20   15   15   15
+  22   22   73   34   8   8   8   11   34   34   59   59   55   55   55   44
+  2   2   2   7   57   29   29   29   19   19   19   26   26   26   47   36
+  36   36   9   9   9   66   33   33   33   64   64   9   9   9   13   12
+  12   12   14   36   36   33   15   15   15   34   3   3   3   58   52   30
+  30   30   10   10   10   21   21   21   39   30   30   30   34   27   27}
+
+do_execsql_test 1.6.3.1 {
+  SELECT row_number() OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.6.3.2 {
+  SELECT row_number() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.6.3.3 {
+  SELECT row_number() OVER ( ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.6.4.1 {
+  SELECT dense_rank() OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.6.4.2 {
+  SELECT dense_rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.6.4.3 {
+  SELECT dense_rank() OVER ( ORDER BY b ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2
+} {1   1   2   2   3   3   4   5   6   7   7   7   8   8   8   9   9   9   10
+  11   11   12   12   12   13   13   14   15   15   15   16   16   16   17
+  18   19   20   20   21   21   22   22   23   24   25   25   26   26   27
+  28   28   28   29   29   29   30   30   31   32   32   32   32   33   33
+  33   33   34   34   35   35   35   35   36   36   37   37   38   38   38
+  39   40   40   41   42   42   43   43   44   44   45   45   45   45   46
+  47   48   49   50   51   52   52   53   53   53   54   55   55   55   55
+  56   56   56   56   57   58   58   59   59   60   61   62   62   62   63
+  64   65   66   67   68   68   68   69   69   69   70   70   70   71   71
+  71   72   73   73   74   74   75   76   76   77   77   77   78   79   80
+  80   80   80   81   81   81   82   83   83   84   85   85   85   86   86
+  86   87   87   87   87   87   88   88   88   89   90   90   90   91   91
+  91   92   92   93   93   94   94}
+
+do_execsql_test 1.6.4.4 {
+  SELECT dense_rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2
+} {1   2   3   3   3   4   5   6   7   8   8   9   9   9   1   1   2   2   3
+  3   4   4   5   5   6   7   7   8   8   8   9   9   9   9   9   1   1   2
+  2   2   3   3   4   5   6   7   7   8   8   8   9   1   1   2   2   3   3
+  4   4   4   4   5   5   6   7   8   8   8   9   10   10   10   1   2   3
+  4   4   4   4   5   5   6   7   8   8   8   9   9   9   9   10   1   2   2
+  2   3   4   4   5   5   6   6   6   7   7   7   8   8   8   9   9   9   1
+  2   2   2   3   3   4   4   4   4   5   5   6   6   6   7   8   9   10   10
+  10   1   1   1   2   3   3   4   4   5   5   5   5   6   7   8   8   9   9
+  10   10   1   1   1   2   3   3   4   4   4   4   5   6   6   7   8   8   1
+  1   1   2   3   3   3   4   4   4   5   6   6   6   6   7   8   9   9   9
+  10   10}
+
+do_execsql_test 1.6.4.5 {
+  SELECT dense_rank() OVER ( ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   4   4   4   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5   5   5   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   6   6   6   6
+  6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   7   7
+  7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7
+  8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8
+  8   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   10   10
+  10   10   10   10   10   10   10   10   10   10   10   10   10   10   10
+  10   10   10   10   10}
+
+do_execsql_test 1.6.4.6 {
+  SELECT dense_rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   3   3   3   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   4   4   4   4   4   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   5   5   5   5   5   5
+  5   5   5   5   5   5   5   5   5   5   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5
+  5}
+
+do_execsql_test 1.6.5.1 {
+  SELECT rank() OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.6.5.2 {
+  SELECT rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.6.5.3 {
+  SELECT rank() OVER ( ORDER BY b ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2
+} {1   1   3   3   5   5   7   8   9   10   10   10   13   13   13   16   16
+  16   19   20   20   22   22   22   25   25   27   28   28   28   31   31
+  31   34   35   36   37   37   39   39   41   41   43   44   45   45   47
+  47   49   50   50   50   53   53   53   56   56   58   59   59   59   59
+  63   63   63   63   67   67   69   69   69   69   73   73   75   75   77
+  77   77   80   81   81   83   84   84   86   86   88   88   90   90   90
+  90   94   95   96   97   98   99   100   100   102   102   102   105   106
+  106   106   106   110   110   110   110   114   115   115   117   117   119
+  120   121   121   121   124   125   126   127   128   129   129   129   132
+  132   132   135   135   135   138   138   138   141   142   142   144   144
+  146   147   147   149   149   149   152   153   154   154   154   154   158
+  158   158   161   162   162   164   165   165   165   168   168   168   171
+  171   171   171   171   176   176   176   179   180   180   180   183   183
+  183   186   186   188   188   190   190}
+
+do_execsql_test 1.6.5.4 {
+  SELECT rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2
+} {1   2   3   3   3   6   7   8   9   10   10   12   12   12   1   1   3   3
+  5   5   7   7   9   9   11   12   12   14   14   14   17   17   17   17
+  17   1   1   3   3   3   6   6   8   9   10   11   11   13   13   13   16
+  1   1   3   3   5   5   7   7   7   7   11   11   13   14   15   15   15
+  18   19   19   19   1   2   3   4   4   4   4   8   8   10   11   12   12
+  12   15   15   15   15   19   1   2   2   2   5   6   6   8   8   10   10
+  10   13   13   13   16   16   16   19   19   19   1   2   2   2   5   5   7
+  7   7   7   11   11   13   13   13   16   17   18   19   19   19   1   1
+  1   4   5   5   7   7   9   9   9   9   13   14   15   15   17   17   19
+  19   1   1   1   4   5   5   7   7   7   7   11   12   12   14   15   15
+  1   1   1   4   5   5   5   8   8   8   11   12   12   12   12   16   17
+  18   18   18   21   21}
+
+do_execsql_test 1.6.5.5 {
+  SELECT rank() OVER ( ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   15   15   15   15
+  15   15   15   15   15   15   15   15   15   15   15   15   15   15   15
+  15   15   36   36   36   36   36   36   36   36   36   36   36   36   36
+  36   36   36   52   52   52   52   52   52   52   52   52   52   52   52
+  52   52   52   52   52   52   52   52   52   73   73   73   73   73   73
+  73   73   73   73   73   73   73   73   73   73   73   73   73   92   92
+  92   92   92   92   92   92   92   92   92   92   92   92   92   92   92
+  92   92   92   92   113   113   113   113   113   113   113   113   113
+  113   113   113   113   113   113   113   113   113   113   113   113   134
+  134   134   134   134   134   134   134   134   134   134   134   134   134
+  134   134   134   134   134   134   154   154   154   154   154   154   154
+  154   154   154   154   154   154   154   154   154   170   170   170   170
+  170   170   170   170   170   170   170   170   170   170   170   170   170
+  170   170   170   170   170}
+
+do_execsql_test 1.6.5.6 {
+  SELECT rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   15   15   15   15
+  15   15   15   15   15   15   15   15   15   15   15   15   31   31   31
+  31   31   31   31   31   31   31   31   31   31   31   31   31   31   31
+  31   50   50   50   50   50   50   50   50   50   50   50   50   50   50
+  50   50   50   50   50   50   50   71   71   71   71   71   71   71   71
+  71   71   71   71   71   71   71   71   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   22   22   22   22   22   22
+  22   22   22   22   22   22   22   22   22   22   22   22   22   22   22
+  43   43   43   43   43   43   43   43   43   43   43   43   43   43   43
+  43   43   43   43   43   43   64   64   64   64   64   64   64   64   64
+  64   64   64   64   64   64   64   64   64   64   64   84   84   84   84
+  84   84   84   84   84   84   84   84   84   84   84   84   84   84   84
+  84   84   84}
+
+do_execsql_test 1.6.6.1 {
+  SELECT 
+      row_number() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ),
+      rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ),
+      dense_rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING )
+    FROM t2
+} {1 1 1   2 1 1   3 1 1   4 1 1   5 1 1   6 1 1   7 1 1   8 1 1   9 1 1
+  10 1 1   11 1 1   12 1 1   13 1 1   14 1 1   15 15 2   16 15 2   17 15 2
+  18 15 2   19 15 2   20 15 2   21 15 2   22 15 2   23 15 2   24 15 2
+  25 15 2   26 15 2   27 15 2   28 15 2   29 15 2   30 15 2   31 31 3
+  32 31 3   33 31 3   34 31 3   35 31 3   36 31 3   37 31 3   38 31 3
+  39 31 3   40 31 3   41 31 3   42 31 3   43 31 3   44 31 3   45 31 3
+  46 31 3   47 31 3   48 31 3   49 31 3   50 50 4   51 50 4   52 50 4
+  53 50 4   54 50 4   55 50 4   56 50 4   57 50 4   58 50 4   59 50 4
+  60 50 4   61 50 4   62 50 4   63 50 4   64 50 4   65 50 4   66 50 4
+  67 50 4   68 50 4   69 50 4   70 50 4   71 71 5   72 71 5   73 71 5
+  74 71 5   75 71 5   76 71 5   77 71 5   78 71 5   79 71 5   80 71 5
+  81 71 5   82 71 5   83 71 5   84 71 5   85 71 5   86 71 5   1 1 1   2 1 1
+  3 1 1   4 1 1   5 1 1   6 1 1   7 1 1   8 1 1   9 1 1   10 1 1   11 1 1
+  12 1 1   13 1 1   14 1 1   15 1 1   16 1 1   17 1 1   18 1 1   19 1 1
+  20 1 1   21 1 1   22 22 2   23 22 2   24 22 2   25 22 2   26 22 2   27 22 2
+  28 22 2   29 22 2   30 22 2   31 22 2   32 22 2   33 22 2   34 22 2
+  35 22 2   36 22 2   37 22 2   38 22 2   39 22 2   40 22 2   41 22 2
+  42 22 2   43 43 3   44 43 3   45 43 3   46 43 3   47 43 3   48 43 3
+  49 43 3   50 43 3   51 43 3   52 43 3   53 43 3   54 43 3   55 43 3
+  56 43 3   57 43 3   58 43 3   59 43 3   60 43 3   61 43 3   62 43 3
+  63 43 3   64 64 4   65 64 4   66 64 4   67 64 4   68 64 4   69 64 4
+  70 64 4   71 64 4   72 64 4   73 64 4   74 64 4   75 64 4   76 64 4
+  77 64 4   78 64 4   79 64 4   80 64 4   81 64 4   82 64 4   83 64 4
+  84 84 5   85 84 5   86 84 5   87 84 5   88 84 5   89 84 5   90 84 5
+  91 84 5   92 84 5   93 84 5   94 84 5   95 84 5   96 84 5   97 84 5
+  98 84 5   99 84 5   100 84 5   101 84 5   102 84 5   103 84 5   104 84 5
+  105 84 5}
+
+
+do_test 1.6.7.1 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0053 0.0105 0.0158 0.0211 0.0263 0.0316 0.0368 0.0421 0.0474 0.0526 0.0579 0.0632 0.0684 0.0737 0.0789 0.0842 0.0895 0.0947 0.1000 0.1053 0.1105 0.1158 0.1211 0.1263 0.1316 0.1368 0.1421 0.1474 0.1526 0.1579 0.1632 0.1684 0.1737 0.1789 0.1842 0.1895 0.1947 0.2000 0.2053 0.2105 0.2158 0.2211 0.2263 0.2316 0.2368 0.2421 0.2474 0.2526 0.2579 0.2632 0.2684 0.2737 0.2789 0.2842 0.2895 0.2947 0.3000 0.3053 0.3105 0.3158 0.3211 0.3263 0.3316 0.3368 0.3421 0.3474 0.3526 0.3579 0.3632 0.3684 0.3737 0.3789 0.3842 0.3895 0.3947 0.4000 0.4053 0.4105 0.4158 0.4211 0.4263 0.4316 0.4368 0.4421 0.4474 0.4526 0.4579 0.4632 0.4684 0.4737 0.4789 0.4842 0.4895 0.4947 0.5000 0.5053 0.5105 0.5158 0.5211 0.5263 0.5316 0.5368 0.5421 0.5474 0.5526 0.5579 0.5632 0.5684 0.5737 0.5789 0.5842 0.5895 0.5947 0.6000 0.6053 0.6105 0.6158 0.6211 0.6263 0.6316 0.6368 0.6421 0.6474 0.6526 0.6579 0.6632 0.6684 0.6737 0.6789 0.6842 0.6895 0.6947 0.7000 0.7053 0.7105 0.7158 0.7211 0.7263 0.7316 0.7368 0.7421 0.7474 0.7526 0.7579 0.7632 0.7684 0.7737 0.7789 0.7842 0.7895 0.7947 0.8000 0.8053 0.8105 0.8158 0.8211 0.8263 0.8316 0.8368 0.8421 0.8474 0.8526 0.8579 0.8632 0.8684 0.8737 0.8789 0.8842 0.8895 0.8947 0.9000 0.9053 0.9105 0.9158 0.9211 0.9263 0.9316 0.9368 0.9421 0.9474 0.9526 0.9579 0.9632 0.9684 0.9737 0.9789 0.9842 0.9895 0.9947 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.6.7.2 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0769 0.1538 0.2308 0.3077 0.3846 0.4615 0.5385 0.6154 0.6923 0.7692 0.8462 0.9231 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0667 0.1333 0.2000 0.2667 0.3333 0.4000 0.4667 0.5333 0.6000 0.6667 0.7333 0.8000 0.8667 0.9333 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0556 0.1111 0.1667 0.2222 0.2778 0.3333 0.3889 0.4444 0.5000 0.5556 0.6111 0.6667 0.7222 0.7778 0.8333 0.8889 0.9444 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0526 0.1053 0.1579 0.2105 0.2632 0.3158 0.3684 0.4211 0.4737 0.5263 0.5789 0.6316 0.6842 0.7368 0.7895 0.8421 0.8947 0.9474 1.0000 0.0000 0.0667 0.1333 0.2000 0.2667 0.3333 0.4000 0.4667 0.5333 0.6000 0.6667 0.7333 0.8000 0.8667 0.9333 1.0000 0.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.6.7.3 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY b ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0105 0.0105 0.0211 0.0211 0.0316 0.0368 0.0421 0.0474 0.0474 0.0474 0.0632 0.0632 0.0632 0.0789 0.0789 0.0789 0.0947 0.1000 0.1000 0.1105 0.1105 0.1105 0.1263 0.1263 0.1368 0.1421 0.1421 0.1421 0.1579 0.1579 0.1579 0.1737 0.1789 0.1842 0.1895 0.1895 0.2000 0.2000 0.2105 0.2105 0.2211 0.2263 0.2316 0.2316 0.2421 0.2421 0.2526 0.2579 0.2579 0.2579 0.2737 0.2737 0.2737 0.2895 0.2895 0.3000 0.3053 0.3053 0.3053 0.3053 0.3263 0.3263 0.3263 0.3263 0.3474 0.3474 0.3579 0.3579 0.3579 0.3579 0.3789 0.3789 0.3895 0.3895 0.4000 0.4000 0.4000 0.4158 0.4211 0.4211 0.4316 0.4368 0.4368 0.4474 0.4474 0.4579 0.4579 0.4684 0.4684 0.4684 0.4684 0.4895 0.4947 0.5000 0.5053 0.5105 0.5158 0.5211 0.5211 0.5316 0.5316 0.5316 0.5474 0.5526 0.5526 0.5526 0.5526 0.5737 0.5737 0.5737 0.5737 0.5947 0.6000 0.6000 0.6105 0.6105 0.6211 0.6263 0.6316 0.6316 0.6316 0.6474 0.6526 0.6579 0.6632 0.6684 0.6737 0.6737 0.6737 0.6895 0.6895 0.6895 0.7053 0.7053 0.7053 0.7211 0.7211 0.7211 0.7368 0.7421 0.7421 0.7526 0.7526 0.7632 0.7684 0.7684 0.7789 0.7789 0.7789 0.7947 0.8000 0.8053 0.8053 0.8053 0.8053 0.8263 0.8263 0.8263 0.8421 0.8474 0.8474 0.8579 0.8632 0.8632 0.8632 0.8789 0.8789 0.8789 0.8947 0.8947 0.8947 0.8947 0.8947 0.9211 0.9211 0.9211 0.9368 0.9421 0.9421 0.9421 0.9579 0.9579 0.9579 0.9737 0.9737 0.9842 0.9842 0.9947 0.9947}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.6.7.4 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0769 0.1538 0.1538 0.1538 0.3846 0.4615 0.5385 0.6154 0.6923 0.6923 0.8462 0.8462 0.8462 0.0000 0.0000 0.1000 0.1000 0.2000 0.2000 0.3000 0.3000 0.4000 0.4000 0.5000 0.5500 0.5500 0.6500 0.6500 0.6500 0.8000 0.8000 0.8000 0.8000 0.8000 0.0000 0.0000 0.1333 0.1333 0.1333 0.3333 0.3333 0.4667 0.5333 0.6000 0.6667 0.6667 0.8000 0.8000 0.8000 1.0000 0.0000 0.0000 0.1000 0.1000 0.2000 0.2000 0.3000 0.3000 0.3000 0.3000 0.5000 0.5000 0.6000 0.6500 0.7000 0.7000 0.7000 0.8500 0.9000 0.9000 0.9000 0.0000 0.0556 0.1111 0.1667 0.1667 0.1667 0.1667 0.3889 0.3889 0.5000 0.5556 0.6111 0.6111 0.6111 0.7778 0.7778 0.7778 0.7778 1.0000 0.0000 0.0500 0.0500 0.0500 0.2000 0.2500 0.2500 0.3500 0.3500 0.4500 0.4500 0.4500 0.6000 0.6000 0.6000 0.7500 0.7500 0.7500 0.9000 0.9000 0.9000 0.0000 0.0500 0.0500 0.0500 0.2000 0.2000 0.3000 0.3000 0.3000 0.3000 0.5000 0.5000 0.6000 0.6000 0.6000 0.7500 0.8000 0.8500 0.9000 0.9000 0.9000 0.0000 0.0000 0.0000 0.1579 0.2105 0.2105 0.3158 0.3158 0.4211 0.4211 0.4211 0.4211 0.6316 0.6842 0.7368 0.7368 0.8421 0.8421 0.9474 0.9474 0.0000 0.0000 0.0000 0.2000 0.2667 0.2667 0.4000 0.4000 0.4000 0.4000 0.6667 0.7333 0.7333 0.8667 0.9333 0.9333 0.0000 0.0000 0.0000 0.1429 0.1905 0.1905 0.1905 0.3333 0.3333 0.3333 0.4762 0.5238 0.5238 0.5238 0.5238 0.7143 0.7619 0.8095 0.8095 0.8095 0.9524 0.9524}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.6.7.5 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.6.7.6 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER (PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.6.8.1 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0052 0.0105 0.0157 0.0209 0.0262 0.0314 0.0366 0.0419 0.0471 0.0524 0.0576 0.0628 0.0681 0.0733 0.0785 0.0838 0.0890 0.0942 0.0995 0.1047 0.1099 0.1152 0.1204 0.1257 0.1309 0.1361 0.1414 0.1466 0.1518 0.1571 0.1623 0.1675 0.1728 0.1780 0.1832 0.1885 0.1937 0.1990 0.2042 0.2094 0.2147 0.2199 0.2251 0.2304 0.2356 0.2408 0.2461 0.2513 0.2565 0.2618 0.2670 0.2723 0.2775 0.2827 0.2880 0.2932 0.2984 0.3037 0.3089 0.3141 0.3194 0.3246 0.3298 0.3351 0.3403 0.3455 0.3508 0.3560 0.3613 0.3665 0.3717 0.3770 0.3822 0.3874 0.3927 0.3979 0.4031 0.4084 0.4136 0.4188 0.4241 0.4293 0.4346 0.4398 0.4450 0.4503 0.4555 0.4607 0.4660 0.4712 0.4764 0.4817 0.4869 0.4921 0.4974 0.5026 0.5079 0.5131 0.5183 0.5236 0.5288 0.5340 0.5393 0.5445 0.5497 0.5550 0.5602 0.5654 0.5707 0.5759 0.5812 0.5864 0.5916 0.5969 0.6021 0.6073 0.6126 0.6178 0.6230 0.6283 0.6335 0.6387 0.6440 0.6492 0.6545 0.6597 0.6649 0.6702 0.6754 0.6806 0.6859 0.6911 0.6963 0.7016 0.7068 0.7120 0.7173 0.7225 0.7277 0.7330 0.7382 0.7435 0.7487 0.7539 0.7592 0.7644 0.7696 0.7749 0.7801 0.7853 0.7906 0.7958 0.8010 0.8063 0.8115 0.8168 0.8220 0.8272 0.8325 0.8377 0.8429 0.8482 0.8534 0.8586 0.8639 0.8691 0.8743 0.8796 0.8848 0.8901 0.8953 0.9005 0.9058 0.9110 0.9162 0.9215 0.9267 0.9319 0.9372 0.9424 0.9476 0.9529 0.9581 0.9634 0.9686 0.9738 0.9791 0.9843 0.9895 0.9948 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.6.8.2 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0714 0.1429 0.2143 0.2857 0.3571 0.4286 0.5000 0.5714 0.6429 0.7143 0.7857 0.8571 0.9286 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0625 0.1250 0.1875 0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250 0.6875 0.7500 0.8125 0.8750 0.9375 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0526 0.1053 0.1579 0.2105 0.2632 0.3158 0.3684 0.4211 0.4737 0.5263 0.5789 0.6316 0.6842 0.7368 0.7895 0.8421 0.8947 0.9474 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0625 0.1250 0.1875 0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250 0.6875 0.7500 0.8125 0.8750 0.9375 1.0000 0.0455 0.0909 0.1364 0.1818 0.2273 0.2727 0.3182 0.3636 0.4091 0.4545 0.5000 0.5455 0.5909 0.6364 0.6818 0.7273 0.7727 0.8182 0.8636 0.9091 0.9545 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.6.8.3 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY b ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0105 0.0105 0.0209 0.0209 0.0314 0.0314 0.0366 0.0419 0.0471 0.0628 0.0628 0.0628 0.0785 0.0785 0.0785 0.0942 0.0942 0.0942 0.0995 0.1099 0.1099 0.1257 0.1257 0.1257 0.1361 0.1361 0.1414 0.1571 0.1571 0.1571 0.1728 0.1728 0.1728 0.1780 0.1832 0.1885 0.1990 0.1990 0.2094 0.2094 0.2199 0.2199 0.2251 0.2304 0.2408 0.2408 0.2513 0.2513 0.2565 0.2723 0.2723 0.2723 0.2880 0.2880 0.2880 0.2984 0.2984 0.3037 0.3246 0.3246 0.3246 0.3246 0.3455 0.3455 0.3455 0.3455 0.3560 0.3560 0.3770 0.3770 0.3770 0.3770 0.3874 0.3874 0.3979 0.3979 0.4136 0.4136 0.4136 0.4188 0.4293 0.4293 0.4346 0.4450 0.4450 0.4555 0.4555 0.4660 0.4660 0.4869 0.4869 0.4869 0.4869 0.4921 0.4974 0.5026 0.5079 0.5131 0.5183 0.5288 0.5288 0.5445 0.5445 0.5445 0.5497 0.5707 0.5707 0.5707 0.5707 0.5916 0.5916 0.5916 0.5916 0.5969 0.6073 0.6073 0.6178 0.6178 0.6230 0.6283 0.6440 0.6440 0.6440 0.6492 0.6545 0.6597 0.6649 0.6702 0.6859 0.6859 0.6859 0.7016 0.7016 0.7016 0.7173 0.7173 0.7173 0.7330 0.7330 0.7330 0.7382 0.7487 0.7487 0.7592 0.7592 0.7644 0.7749 0.7749 0.7906 0.7906 0.7906 0.7958 0.8010 0.8220 0.8220 0.8220 0.8220 0.8377 0.8377 0.8377 0.8429 0.8534 0.8534 0.8586 0.8743 0.8743 0.8743 0.8901 0.8901 0.8901 0.9162 0.9162 0.9162 0.9162 0.9162 0.9319 0.9319 0.9319 0.9372 0.9529 0.9529 0.9529 0.9686 0.9686 0.9686 0.9791 0.9791 0.9895 0.9895 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.6.8.4 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0714 0.1429 0.3571 0.3571 0.3571 0.4286 0.5000 0.5714 0.6429 0.7857 0.7857 1.0000 1.0000 1.0000 0.0952 0.0952 0.1905 0.1905 0.2857 0.2857 0.3810 0.3810 0.4762 0.4762 0.5238 0.6190 0.6190 0.7619 0.7619 0.7619 1.0000 1.0000 1.0000 1.0000 1.0000 0.1250 0.1250 0.3125 0.3125 0.3125 0.4375 0.4375 0.5000 0.5625 0.6250 0.7500 0.7500 0.9375 0.9375 0.9375 1.0000 0.0952 0.0952 0.1905 0.1905 0.2857 0.2857 0.4762 0.4762 0.4762 0.4762 0.5714 0.5714 0.6190 0.6667 0.8095 0.8095 0.8095 0.8571 1.0000 1.0000 1.0000 0.0526 0.1053 0.1579 0.3684 0.3684 0.3684 0.3684 0.4737 0.4737 0.5263 0.5789 0.7368 0.7368 0.7368 0.9474 0.9474 0.9474 0.9474 1.0000 0.0476 0.1905 0.1905 0.1905 0.2381 0.3333 0.3333 0.4286 0.4286 0.5714 0.5714 0.5714 0.7143 0.7143 0.7143 0.8571 0.8571 0.8571 1.0000 1.0000 1.0000 0.0476 0.1905 0.1905 0.1905 0.2857 0.2857 0.4762 0.4762 0.4762 0.4762 0.5714 0.5714 0.7143 0.7143 0.7143 0.7619 0.8095 0.8571 1.0000 1.0000 1.0000 0.1500 0.1500 0.1500 0.2000 0.3000 0.3000 0.4000 0.4000 0.6000 0.6000 0.6000 0.6000 0.6500 0.7000 0.8000 0.8000 0.9000 0.9000 1.0000 1.0000 0.1875 0.1875 0.1875 0.2500 0.3750 0.3750 0.6250 0.6250 0.6250 0.6250 0.6875 0.8125 0.8125 0.8750 1.0000 1.0000 0.1364 0.1364 0.1364 0.1818 0.3182 0.3182 0.3182 0.4545 0.4545 0.4545 0.5000 0.6818 0.6818 0.6818 0.6818 0.7273 0.7727 0.9091 0.9091 0.9091 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.6.8.5 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.6.8.6 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.6.8.1 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(100) OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 88.0000 89.0000 89.0000 90.0000 90.0000 91.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.6.8.2 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(101) OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 22.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.6.8.3 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(102) OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 88.0000 89.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.6.8.4 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(103) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 22.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.6.8.5 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(104) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000 103.0000 104.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.6.8.6 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(105) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.6.8.7 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(105) OVER ( ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 88.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000 103.0000 104.0000 105.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+do_execsql_test 1.6.9.1 {
+  SELECT last_value(a+b) OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2
+} {{}   {}   99   92   108   72   52   83   55   79   109   65   26   120
+  119   50   70   103   80   124   36   96   59   124   116   110   57   51
+  52   130   103   74   87   48   128   117   105   136   131   71   133   92
+  109   63   84   109   57   146   78   147   113   74   88   150   87   110
+  65   121   106   110   124   85   145   107   161   171   150   156   80
+  171   120   109   158   114   111   136   147   87   173   124   168   173
+  162   132   101   154   167   190   161   110   156   195   198   102   123
+  177   169   140   111   180   119   160   197   152   124   121   134   146
+  147   132   213   141   193   200   210   157   132   136   175   161   218
+  188   226   191   187   208   211   179   138   144   223   196   214   170
+  212   202   163   184   172   173   195   229   240   187   210   200   163
+  227   228   223   191   252   235   225   243   172   187   202   179   179
+  182   231   261   207   263   206   189   209   212   276   181   274   249
+  239   234   213   234   269   196   271   221   210   229   235   250   223
+  232   229   279   224   280}
+
+do_execsql_test 1.6.9.2 {
+  SELECT last_value(a+b) OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2
+} {{}   {}   147   106   109   168   134   218   191   212   229   240   213
+  234   {}   {}   92   109   105   136   146   65   156   132   154   102
+  123   119   160   152   146   147   136   243   261   {}   {}   79   63
+  84   78   120   87   162   124   141   138   227   228   179   231   {}
+  {}   124   57   130   92   57   110   114   136   147   167   110   180
+  193   191   252   187   179   206   181   {}   {}   80   116   117   71
+  80   171   173   177   157   161   179   214   225   182   209   269   271
+  {}   {}   103   74   131   133   113   74   87   145   190   161   169
+  140   111   132   213   187   208   223   235   {}   {}   108   65   26
+  70   51   52   128   109   121   124   85   107   150   195   226   172
+  173   187   223   {}   {}   119   50   124   96   110   87   48   110   173
+  124   197   211   144   196   195   200   202   224   {}   {}   52   83
+  103   36   88   171   158   156   198   121   210   132   210   239   {}
+  {}   99   72   55   120   59   109   150   161   111   101   200   175
+  188   170   202   163   184   163   172   276}
+
+do_execsql_test 1.6.9.3 {
+  SELECT last_value(a+b) OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2
+} {{}   {}   65   102   87   138   57   181   80   111   26   48   144   207
+  36   121   132   101   163   172   196   119   136   63   124   179   110
+  179   182   74   132   189   51   52   85   216   163   134   123   210
+  78   141   57   187   71   87   172   173   50   224   88   59   111   170
+  109   213   223   146   147   84   114   191   206   221   157   161   209
+  229   74   140   107   187   207   212   124   202   52   232   55   184
+  229   106   132   152   120   92   110   179   235   65   70   87   110
+  195   200   175   234   160   234   136   80   113   187   109   121   124
+  196   156   210   239   250   72   109   188   202   191   105   154   79
+  231   147   225   103   161   169   223   96   83   249   212   162   227
+  228   167   180   193   117   177   214   145   208   235   150   110   211
+  103   158   200   168   229   92   156   243   280   279   116   173   269
+  271   131   133   223   128   173   197   210   99   150   161   147   218
+  240   109   136   146   261   263   124   130   252   171   190   213   274
+  108   195   226   119   124   171   198}
+
+do_execsql_test 1.6.9.4 {
+  SELECT last_value(a+b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2
+} {{}   {}   196   134   109   213   223   106   234   191   212   168   229
+  147   {}   {}   65   102   119   136   123   210   146   147   132   152
+  160   105   154   92   156   243   109   136   146   {}   {}   87   138
+  63   124   179   78   141   84   120   234   79   231   162   227   {}   {}
+  57   181   110   179   57   187   114   191   206   221   92   110   136
+  147   167   180   193   279   124   {}   {}   80   182   71   157   161
+  209   229   179   235   80   225   117   177   214   116   173   269   {}
+  {}   111   74   132   189   87   74   140   113   187   103   161   169
+  145   208   235   131   133   223   190   {}   {}   26   51   52   85   172
+  173   107   187   207   212   65   70   109   121   124   223   150   128
+  108   {}   {}   48   144   207   216   50   224   124   202   87   110
+  195   200   196   96   110   211   173   197   {}   {}   36   121   132
+  88   52   232   156   210   239   250   83   103   158   210   {}   {}
+  101   163   172   163   59   111   170   55   184   229   175   72   109
+  188   202   249   200   99   150   161}
+
+do_execsql_test 1.6.9.5 {
+  SELECT last_value(a+b) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2
+} {{}   {}   147   106   109   168   134   218   191   212   229   240   213
+  234   196   223   92   109   105   136   146   65   156   132   154   102
+  123   119   160   152   146   147   136   243   261   263   210   79   63
+  84   78   120   87   162   124   141   138   227   228   179   231   234
+  280   124   57   130   92   57   110   114   136   147   167   110   180
+  193   191   252   187   179   206   181   221   279   80   116   117   71
+  80   171   173   177   157   161   179   214   225   182   209   269   271
+  235   229   103   74   131   133   113   74   87   145   190   161   169
+  140   111   132   213   187   208   223   235   189   274   108   65   26
+  70   51   52   128   109   121   124   85   107   150   195   226   172
+  173   187   223   207   212   119   50   124   96   110   87   48   110
+  173   124   197   211   144   196   195   200   202   224   216   207   52
+  83   103   36   88   171   158   156   198   121   210   132   210   239
+  250   232   99   72   55   120   59   109   150   161   111   101   200
+  175   188   170   202   163   184   163   172   276}
+
+do_execsql_test 1.6.9.6 {
+  SELECT last_value(a+b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.6.10.1 {
+  SELECT nth_value(b,b+1) OVER (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   89   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  53   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   58   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   77   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.6.10.2 {
+  SELECT nth_value(b,b+1) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   61   {}   {}   {}   81   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   22   {}   {}   {}   12
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.6.10.3 {
+  SELECT nth_value(b,b+1) OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.6.10.4 {
+  SELECT nth_value(b,b+1) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.6.10.5 {
+  SELECT nth_value(b,b+1) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   61   {}   {}   {}   81   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   22   {}   {}   {}   12
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.6.10.6 {
+  SELECT nth_value(b,b+1) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.6.11.1 {
+  SELECT first_value(b) OVER (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING) FROM t2
+} {{}   {}   89   89   89   81   96   59   38   68   39   62   91   46   6
+  99   97   27   46   78   54   97   8   67   29   93   84   77   23   16
+  16   93   65   35   47   7   86   74   61   91   85   24   85   43   59
+  12   32   56   3   91   22   90   55   15   28   89   25   47   1   56   40
+  43   56   16   75   36   89   98   76   81   4   94   42   30   78   33
+  29   53   63   2   87   37   80   84   72   41   9   61   73   95   65   13
+  58   96   98   1   21   74   65   35   5   73   11   51   87   41   12   8
+  20   31   31   15   95   22   73   79   88   34   8   11   49   34   90
+  59   96   60   55   75   77   44   2   7   85   57   74   29   70   59   19
+  39   26   26   47   80   90   36   58   47   9   72   72   66   33   93
+  75   64   81   9   23   37   13   12   14   62   91   36   91   33   15
+  34   36   99   3   95   69   58   52   30   50   84   10   84   33   21
+  39   44   58   30   38   34   83}
+
+do_execsql_test 1.6.11.2 {
+  SELECT first_value(b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING) FROM t2
+} {{}   {}   90   90   90   40   30   80   20   90   60   70   80   90   {}
+  {}   81   81   81   91   61   91   91   1   81   41   61   1   21   11   51
+  41   31   31   11   {}   {}   62   62   62   12   32   22   42   2   72
+  12   22   2   72   72   {}   {}   93   93   93   23   93   43   3   43   33
+  53   63   73   13   73   73   33   93   23   13   {}   {}   54   54   54
+  84   74   24   4   94   84   74   34   34   44   74   64   14   34   {}
+  {}   65   65   65   35   85   85   55   15   25   75   95   65   65   35
+  5   15   95   55   75   {}   {}   96   96   96   46   6   46   16   16   86
+  56   56   56   16   36   76   96   96   26   26   {}   {}   97   97   97
+  27   97   67   77   47   7   47   87   37   87   77   7   57   47   47   {}
+  {}   38   38   38   68   78   8   28   98   78   58   98   8   88   8   {}
+  {}   89   89   89   59   39   99   29   59   89   89   29   9   79   49
+  59   29   59   19   39   9}
+
+do_execsql_test 1.6.11.3 {
+  SELECT first_value(b) OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2
+} {{}   {}   1   1   1   1   2   2   3   3   4   5   6   7   7   7   8   8   8
+  9   9   9   10   11   11   12   12   12   13   13   14   15   15   15   16
+  16   16   17   19   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   30   30   30   31   31   32   33   33   33
+  33   34   34   34   34   35   35   36   36   36   36   37   37   38   38
+  39   39   39   40   41   41   42   43   43   44   44   46   46   47   47
+  47   47   49   50   51   52   53   54   55   55   56   56   56   57   58
+  58   58   58   59   59   59   59   60   61   61   62   62   63   64   65
+  65   65   66   67   68   69   70   72   72   72   73   73   73   74   74
+  74   75   75   75   76   77   77   78   78   79   80   80   81   81   81
+  82   83   84   84   84   84   85   85   85   86   87   87   88   89   89
+  89   90   90   90   91   91   91   91   91   93   93   93   94   95   95
+  95   96   96   96   97   97}
+
+do_execsql_test 1.6.11.4 {
+  SELECT first_value(b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2
+} {{}   {}   10   10   10   20   30   30   30   40   50   60   70   80   {}
+  {}   1   1   1   1   11   11   21   21   31   31   41   41   51   61   61
+  81   81   81   91   {}   {}   2   2   2   2   12   12   12   22   22   32
+  42   52   62   62   {}   {}   3   3   3   3   13   13   23   23   33   33
+  33   33   43   43   53   63   73   73   73   {}   {}   4   4   4   14   24
+  34   34   34   34   44   44   54   64   74   74   74   84   {}   {}   5   5
+  5   15   15   15   25   35   35   55   55   65   65   65   75   75   75
+  85   85   {}   {}   6   6   6   16   16   16   26   26   36   36   36   36
+  46   46   56   56   56   66   76   {}   {}   7   7   7   7   7   17   27
+  27   37   37   47   47   47   47   57   67   77   77   {}   {}   8   8   8
+  8   8   28   38   38   58   58   58   58   68   78   {}   {}   9   9   9
+  9   9   19   29   29   29   39   39   39   49   59   59   59   59   69   79
+  89}
+
+do_execsql_test 1.6.11.5 {
+  SELECT first_value(b) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2
+} {{}   {}   90   90   90   40   30   80   20   90   60   70   80   90   30
+  50   10   30   81   91   61   91   91   1   81   41   61   1   21   11   51
+  41   31   31   11   81   91   91   21   62   12   32   22   42   2   72
+  12   22   2   72   72   12   62   52   82   93   23   93   43   3   43   33
+  53   63   73   13   73   73   33   93   23   13   33   3   33   83   54
+  84   74   24   4   94   84   74   34   34   44   74   64   14   34   84
+  84   44   34   65   35   85   85   55   15   25   75   95   65   65   35
+  5   15   95   55   75   85   75   15   95   96   46   6   46   16   16   86
+  56   56   56   16   36   76   96   96   26   26   36   66   36   36   97
+  27   97   67   77   47   7   47   87   37   87   77   7   57   47   47   37
+  27   17   7   38   68   78   8   28   98   78   58   98   8   88   8   58
+  58   58   38   89   59   39   99   29   59   89   89   29   9   79   49
+  59   29   59   19   39   9}
+
+do_execsql_test 1.6.11.6 {
+  SELECT first_value(b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.6.12.1 {
+  SELECT lead(b,b) OVER (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING) FROM t2
+} {96   9   11   89   32   53   91   30   51   56   54   73   22   59   75
+  74   78   8   16   65   15   8   31   87   90   12   32   96   74   76   37
+  85   90   15   35   2   60   36   75   9   51   47   63   51   90   26   42
+  26   8   76   80   90   37   87   56   79   5   87   8   2   39   73   64
+  36   90   72   78   36   73   51   33   20   41   2   26   37   33   8   14
+  33   81   55   1   9   12   39   64   87   72   34   82   21   34   99   62
+  74   41   69   22   75   27   58   8   79   77   26   26   55   {}   29
+  30   7   {}   66   55   2   34   64   {}   33   {}   44   84   {}   {}   95
+  85   19   {}   83   {}   91   {}   {}   9   50   91   33   34   {}   {}
+  84   {}   7   9   {}   {}   {}   44   {}   {}   {}   {}   91   84   {}   95
+  95   52   {}   {}   {}   {}   {}   21   {}   {}   {}   58   {}   {}   {}
+  {}   {}   {}   {}   83   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}}
+
+do_execsql_test 1.6.12.2 {
+  SELECT lead(b,b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   81   {}   {}   {}   21   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   62   {}   {}   {}   12   {}   {}   {}   72
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   53   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   34   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   95   {}   {}   {}   {}   {}   {}   85   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   56   {}   36   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   57   {}   {}   {}   {}   {}   7   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   8   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.6.12.3 {
+  SELECT lead(b,b) OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2
+} {1   2   3   3   5   6   7   8   8   9   9   10   11   12   12   13   13
+  14   15   16   16   17   19   20   21   22   23   24   25   26   27   27
+  28   29   30   31   32   33   33   33   34   34   35   36   36   36   37
+  38   39   39   40   41   42   43   43   44   46   47   47   47   49   50
+  52   53   54   55   56   56   57   58   58   58   59   59   59   60   61
+  62   62   64   65   65   67   69   70   72   72   73   74   74   75   75
+  75   77   78   80   81   81   83   84   84   85   85   85   87   88   89
+  89   89   90   90   91   91   91   93   93   94   95   95   96   97   97
+  98   99   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.6.12.4 {
+  SELECT lead(b,b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2
+} {80   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   1
+  11   81   81   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   12   12   72   82   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   13   23   73   73   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   34   84   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   35   85   85   95   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   36   86   96   96   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   37   47
+  47   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   58   58   68   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   39   49   59   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.6.12.5 {
+  SELECT lead(b,b) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2
+} {34   72   91   74   21   55   23   94   84   95   2   13   61   22   55
+  55   94   85   75   81   65   73   74   21   72   12   94   33   63   73
+  72   96   36   76   3   25   62   3   73   34   12   46   43   93   72   16
+  86   63   15   65   36   77   24   57   25   53   95   34   95   16   97
+  74   97   67   25   98   44   34   65   54   5   68   96   28   47   95
+  34   39   8   38   6   46   96   28   47   95   56   39   99   97   76   8
+  26   9   79   27   95   16   29   {}   58   58   77   85   56   {}   98
+  29   {}   19   96   {}   {}   78   56   98   36   97   {}   89   89   29
+  47   78   {}   {}   {}   38   68   58   {}   58   38   {}   98   {}   {}
+  {}   39   57   9   {}   79   {}   {}   7   {}   {}   {}   9   29   38   78
+  {}   {}   {}   8   39   {}   {}   {}   {}   59   {}   99   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.6.12.6 {
+  SELECT lead(b,b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.6.13.1 {
+  SELECT lag(b,b) OVER (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   38   {}   {}   {}   {}
+  {}   {}   {}   6   {}   {}   {}   {}   {}   81   46   6   {}   {}   {}   {}
+  23   {}   {}   {}   {}   {}   27   {}   {}   {}   35   6   {}   12   {}
+  23   {}   {}   61   84   {}   93   39   47   {}   54   46   96   56   {}
+  16   {}   {}   {}   {}   89   {}   16   43   {}   85   56   29   99   53
+  {}   59   {}   {}   91   59   53   84   99   {}   93   63   47   {}   {}
+  98   33   67   35   75   1   23   13   55   27   75   98   35   73   63   2
+  21   27   13   24   86   23   84   31   20   94   61   65   75   23   36
+  94   55   90   41   77   96   56   29   40   12   89   63   11   5   73
+  79   1   16   28   31   73   5   39   53   63   41   11   40   2   13   33
+  9   29   90   47   72   9   73   30   44   33   74   93   29   74   42   34
+  63   41   34   96   47   77   1   36   74   72   14   36   26   77   9   72
+  64   8   91   31   52   30}
+
+do_execsql_test 1.6.13.2 {
+  SELECT lag(b,b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   61   {}   81   {}   {}   {}   {}
+  1   {}   {}   {}   {}   {}   {}   {}   {}   {}   22   {}   {}   {}   12
+  {}   {}   62   {}   {}   {}   {}   {}   {}   {}   23   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   43   {}   23   {}   {}   {}   {}   {}
+  {}   54   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   75   {}
+  {}   {}   {}   {}   {}   55   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   47   {}   {}   {}   {}
+  {}   27   7   {}   {}   {}   {}   {}   {}   {}   {}   {}   68   {}   8   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   89   {}   {}
+  {}   {}   {}   {}   {}   29   9   {}   {}   {}}
+
+do_execsql_test 1.6.13.3 {
+  SELECT lag(b,b) OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2
+} {{}   1   1   1   1   2   2   2   2   2   2   3   3   3   4   4   5   6   6
+  6   7   7   7   7   7   8   8   8   8   8   8   9   9   9   9   9   9   9
+  9   9   9   10   10   10   10   11   11   11   11   11   12   12   12   12
+  13   13   13   13   13   14   15   15   15   15   16   16   16   16   16
+  17   19   20   20   21   21   21   21   22   22   22   22   23   23   23
+  23   23   24   23   24   24   25   26   26   26   26   26   26   26   26
+  26   26   26   27   27   27   27   28   29   29   29   29   30   30   30
+  30   30   30   31   31   31   31   31   32   32   32   32   32   32   31
+  32   33   33   33   33   33   33   34   34   34   34   34   34   34   34
+  35   35   35   35   35   36   36   36   36   36   36   36   37   37   37
+  38   38   38   38   38   38   39   39   39   39   40   40   41   41   42
+  43   42   43   43   43   43   44   44   44   46   46   46   47   47   47
+  47   47}
+
+do_execsql_test 1.6.13.4 {
+  SELECT lag(b,b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  1   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.6.13.5 {
+  SELECT lag(b,b) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   61   80   81   {}   {}   {}   {}
+  1   {}   {}   {}   30   {}   21   90   61   {}   22   {}   11   41   12
+  {}   {}   62   {}   {}   {}   {}   31   {}   50   23   30   21   90   {}
+  {}   62   {}   {}   81   {}   22   43   62   23   32   {}   91   {}   90
+  93   54   {}   {}   90   72   12   22   90   81   83   23   80   20   72
+  43   51   33   80   90   2   34   54   1   20   62   12   13   75   44   30
+  93   91   1   21   55   61   61   13   85   3   65   65   91   73   33   93
+  55   84   62   31   11   65   35   85   33   55   15   12   75   22   3
+  73   65   36   85   43   95   43   13   47   44   65   65   96   36   27
+  7   46   34   94   47   36   73   34   35   73   68   24   8   75   85   75
+  66   34   95   36   84   77   46   34   84   47   89   65   36   16   38
+  76   58   57   29   9   44   56   17}
+
+do_execsql_test 1.6.13.6 {
+  SELECT lag(b,b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.6.14.1 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING) FROM t2
+} {{}   {}   89   89.81   89.81.96   81.96.59   96.59.38   59.38.68   38.68.39
+  68.39.62   39.62.91   62.91.46   91.46.6   46.6.99   6.99.97   99.97.27
+  97.27.46   27.46.78   46.78.54   78.54.97   54.97.8   97.8.67   8.67.29
+  67.29.93   29.93.84   93.84.77   84.77.23   77.23.16   23.16.16   16.16.93
+  16.93.65   93.65.35   65.35.47   35.47.7   47.7.86   7.86.74   86.74.61
+  74.61.91   61.91.85   91.85.24   85.24.85   24.85.43   85.43.59   43.59.12
+  59.12.32   12.32.56   32.56.3   56.3.91   3.91.22   91.22.90   22.90.55
+  90.55.15   55.15.28   15.28.89   28.89.25   89.25.47   25.47.1   47.1.56
+  1.56.40   56.40.43   40.43.56   43.56.16   56.16.75   16.75.36   75.36.89
+  36.89.98   89.98.76   98.76.81   76.81.4   81.4.94   4.94.42   94.42.30
+  42.30.78   30.78.33   78.33.29   33.29.53   29.53.63   53.63.2   63.2.87
+  2.87.37   87.37.80   37.80.84   80.84.72   84.72.41   72.41.9   41.9.61
+  9.61.73   61.73.95   73.95.65   95.65.13   65.13.58   13.58.96   58.96.98
+  96.98.1   98.1.21   1.21.74   21.74.65   74.65.35   65.35.5   35.5.73
+  5.73.11   73.11.51   11.51.87   51.87.41   87.41.12   41.12.8   12.8.20
+  8.20.31   20.31.31   31.31.15   31.15.95   15.95.22   95.22.73   22.73.79
+  73.79.88   79.88.34   88.34.8   34.8.11   8.11.49   11.49.34   49.34.90
+  34.90.59   90.59.96   59.96.60   96.60.55   60.55.75   55.75.77   75.77.44
+  77.44.2   44.2.7   2.7.85   7.85.57   85.57.74   57.74.29   74.29.70
+  29.70.59   70.59.19   59.19.39   19.39.26   39.26.26   26.26.47   26.47.80
+  47.80.90   80.90.36   90.36.58   36.58.47   58.47.9   47.9.72   9.72.72
+  72.72.66   72.66.33   66.33.93   33.93.75   93.75.64   75.64.81   64.81.9
+  81.9.23   9.23.37   23.37.13   37.13.12   13.12.14   12.14.62   14.62.91
+  62.91.36   91.36.91   36.91.33   91.33.15   33.15.34   15.34.36   34.36.99
+  36.99.3   99.3.95   3.95.69   95.69.58   69.58.52   58.52.30   52.30.50
+  30.50.84   50.84.10   84.10.84   10.84.33   84.33.21   33.21.39   21.39.44
+  39.44.58   44.58.30   58.30.38   30.38.34   38.34.83   34.83.27   83.27.82}
+
+do_execsql_test 1.6.14.2 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING) FROM t2
+} {{}   {}   90   90.40   90.40.30   40.30.80   30.80.20   80.20.90   20.90.60
+  90.60.70   60.70.80   70.80.90   80.90.30   90.30.50   {}   {}   81   81.91
+  81.91.61   91.61.91   61.91.91   91.91.1   91.1.81   1.81.41   81.41.61
+  41.61.1   61.1.21   1.21.11   21.11.51   11.51.41   51.41.31   41.31.31
+  31.31.11   31.11.81   11.81.91   {}   {}   62   62.12   62.12.32   12.32.22
+  32.22.42   22.42.2   42.2.72   2.72.12   72.12.22   12.22.2   22.2.72
+  2.72.72   72.72.12   72.12.62   {}   {}   93   93.23   93.23.93   23.93.43
+  93.43.3   43.3.43   3.43.33   43.33.53   33.53.63   53.63.73   63.73.13
+  73.13.73   13.73.73   73.73.33   73.33.93   33.93.23   93.23.13   23.13.33
+  13.33.3   {}   {}   54   54.84   54.84.74   84.74.24   74.24.4   24.4.94
+  4.94.84   94.84.74   84.74.34   74.34.34   34.34.44   34.44.74   44.74.64
+  74.64.14   64.14.34   14.34.84   34.84.84   {}   {}   65   65.35   65.35.85
+  35.85.85   85.85.55   85.55.15   55.15.25   15.25.75   25.75.95   75.95.65
+  95.65.65   65.65.35   65.35.5   35.5.15   5.15.95   15.95.55   95.55.75
+  55.75.85   75.85.75   {}   {}   96   96.46   96.46.6   46.6.46   6.46.16
+  46.16.16   16.16.86   16.86.56   86.56.56   56.56.56   56.56.16   56.16.36
+  16.36.76   36.76.96   76.96.96   96.96.26   96.26.26   26.26.36   26.36.66
+  {}   {}   97   97.27   97.27.97   27.97.67   97.67.77   67.77.47   77.47.7
+  47.7.47   7.47.87   47.87.37   87.37.87   37.87.77   87.77.7   77.7.57
+  7.57.47   57.47.47   47.47.37   47.37.27   {}   {}   38   38.68   38.68.78
+  68.78.8   78.8.28   8.28.98   28.98.78   98.78.58   78.58.98   58.98.8
+  98.8.88   8.88.8   88.8.58   8.58.58   {}   {}   89   89.59   89.59.39
+  59.39.99   39.99.29   99.29.59   29.59.89   59.89.89   89.89.29   89.29.9
+  29.9.79   9.79.49   79.49.59   49.59.29   59.29.59   29.59.19   59.19.39
+  19.39.9   39.9.9   9.9.99}
+
+do_execsql_test 1.6.14.3 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2
+} {{}   {}   1   1.1   1.1.2   1.2.2   2.2.3   2.3.3   3.3.4   3.4.5   4.5.6
+  5.6.7   6.7.7   7.7.7   7.7.8   7.8.8   8.8.8   8.8.9   8.9.9   9.9.9
+  9.9.10   9.10.11   10.11.11   11.11.12   11.12.12   12.12.12   12.12.13
+  12.13.13   13.13.14   13.14.15   14.15.15   15.15.15   15.15.16   15.16.16
+  16.16.16   16.16.17   16.17.19   17.19.20   19.20.21   20.21.21   21.21.22
+  21.22.22   22.22.23   22.23.23   23.23.24   23.24.25   24.25.26   25.26.26
+  26.26.27   26.27.27   27.27.28   27.28.29   28.29.29   29.29.29   29.29.30
+  29.30.30   30.30.30   30.30.31   30.31.31   31.31.32   31.32.33   32.33.33
+  33.33.33   33.33.33   33.33.34   33.34.34   34.34.34   34.34.34   34.34.35
+  34.35.35   35.35.36   35.36.36   36.36.36   36.36.36   36.36.37   36.37.37
+  37.37.38   37.38.38   38.38.39   38.39.39   39.39.39   39.39.40   39.40.41
+  40.41.41   41.41.42   41.42.43   42.43.43   43.43.44   43.44.44   44.44.46
+  44.46.46   46.46.47   46.47.47   47.47.47   47.47.47   47.47.49   47.49.50
+  49.50.51   50.51.52   51.52.53   52.53.54   53.54.55   54.55.55   55.55.56
+  55.56.56   56.56.56   56.56.57   56.57.58   57.58.58   58.58.58   58.58.58
+  58.58.59   58.59.59   59.59.59   59.59.59   59.59.60   59.60.61   60.61.61
+  61.61.62   61.62.62   62.62.63   62.63.64   63.64.65   64.65.65   65.65.65
+  65.65.66   65.66.67   66.67.68   67.68.69   68.69.70   69.70.72   70.72.72
+  72.72.72   72.72.73   72.73.73   73.73.73   73.73.74   73.74.74   74.74.74
+  74.74.75   74.75.75   75.75.75   75.75.76   75.76.77   76.77.77   77.77.78
+  77.78.78   78.78.79   78.79.80   79.80.80   80.80.81   80.81.81   81.81.81
+  81.81.82   81.82.83   82.83.84   83.84.84   84.84.84   84.84.84   84.84.85
+  84.85.85   85.85.85   85.85.86   85.86.87   86.87.87   87.87.88   87.88.89
+  88.89.89   89.89.89   89.89.90   89.90.90   90.90.90   90.90.91   90.91.91
+  91.91.91   91.91.91   91.91.91   91.91.93   91.93.93   93.93.93   93.93.94
+  93.94.95   94.95.95   95.95.95   95.95.96   95.96.96   96.96.96   96.96.97
+  96.97.97   97.97.98   97.98.98}
+
+do_execsql_test 1.6.14.4 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2
+} {{}   {}   10   10.20   10.20.30   20.30.30   30.30.30   30.30.40   30.40.50
+  40.50.60   50.60.70   60.70.80   70.80.80   80.80.90   {}   {}   1   1.1
+  1.1.11   1.11.11   11.11.21   11.21.21   21.21.31   21.31.31   31.31.41
+  31.41.41   41.41.51   41.51.61   51.61.61   61.61.81   61.81.81   81.81.81
+  81.81.91   81.91.91   91.91.91   {}   {}   2   2.2   2.2.12   2.12.12
+  12.12.12   12.12.22   12.22.22   22.22.32   22.32.42   32.42.52   42.52.62
+  52.62.62   62.62.72   62.72.72   {}   {}   3   3.3   3.3.13   3.13.13
+  13.13.23   13.23.23   23.23.33   23.33.33   33.33.33   33.33.33   33.33.43
+  33.43.43   43.43.53   43.53.63   53.63.73   63.73.73   73.73.73   73.73.83
+  73.83.93   {}   {}   4   4.14   4.14.24   14.24.34   24.34.34   34.34.34
+  34.34.34   34.34.44   34.44.44   44.44.54   44.54.64   54.64.74   64.74.74
+  74.74.74   74.74.84   74.84.84   84.84.84   {}   {}   5   5.15   5.15.15
+  15.15.15   15.15.25   15.25.35   25.35.35   35.35.55   35.55.55   55.55.65
+  55.65.65   65.65.65   65.65.75   65.75.75   75.75.75   75.75.85   75.85.85
+  85.85.85   85.85.95   {}   {}   6   6.16   6.16.16   16.16.16   16.16.26
+  16.26.26   26.26.36   26.36.36   36.36.36   36.36.36   36.36.46   36.46.46
+  46.46.56   46.56.56   56.56.56   56.56.66   56.66.76   66.76.86   76.86.96
+  {}   {}   7   7.7   7.7.7   7.7.17   7.17.27   17.27.27   27.27.37
+  27.37.37   37.37.47   37.47.47   47.47.47   47.47.47   47.47.57   47.57.67
+  57.67.77   67.77.77   77.77.87   77.87.87   {}   {}   8   8.8   8.8.8
+  8.8.28   8.28.38   28.38.38   38.38.58   38.58.58   58.58.58   58.58.58
+  58.58.68   58.68.78   68.78.78   78.78.88   {}   {}   9   9.9   9.9.9
+  9.9.19   9.19.29   19.29.29   29.29.29   29.29.39   29.39.39   39.39.39
+  39.39.49   39.49.59   49.59.59   59.59.59   59.59.59   59.59.69   59.69.79
+  69.79.89   79.89.89   89.89.89}
+
+do_execsql_test 1.6.14.5 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING ) FROM t2
+} {{}   {}   90   90.40   90.40.30   40.30.80   30.80.20   80.20.90   20.90.60
+  90.60.70   60.70.80   70.80.90   80.90.30   90.30.50   30.50.10   50.10.30
+  10.30.81   30.81.91   81.91.61   91.61.91   61.91.91   91.91.1   91.1.81
+  1.81.41   81.41.61   41.61.1   61.1.21   1.21.11   21.11.51   11.51.41
+  51.41.31   41.31.31   31.31.11   31.11.81   11.81.91   81.91.91   91.91.21
+  91.21.62   21.62.12   62.12.32   12.32.22   32.22.42   22.42.2   42.2.72
+  2.72.12   72.12.22   12.22.2   22.2.72   2.72.72   72.72.12   72.12.62
+  12.62.52   62.52.82   52.82.93   82.93.23   93.23.93   23.93.43   93.43.3
+  43.3.43   3.43.33   43.33.53   33.53.63   53.63.73   63.73.13   73.13.73
+  13.73.73   73.73.33   73.33.93   33.93.23   93.23.13   23.13.33   13.33.3
+  33.3.33   3.33.83   33.83.54   83.54.84   54.84.74   84.74.24   74.24.4
+  24.4.94   4.94.84   94.84.74   84.74.34   74.34.34   34.34.44   34.44.74
+  44.74.64   74.64.14   64.14.34   14.34.84   34.84.84   84.84.44   84.44.34
+  44.34.65   34.65.35   65.35.85   35.85.85   85.85.55   85.55.15   55.15.25
+  15.25.75   25.75.95   75.95.65   95.65.65   65.65.35   65.35.5   35.5.15
+  5.15.95   15.95.55   95.55.75   55.75.85   75.85.75   85.75.15   75.15.95
+  15.95.96   95.96.46   96.46.6   46.6.46   6.46.16   46.16.16   16.16.86
+  16.86.56   86.56.56   56.56.56   56.56.16   56.16.36   16.36.76   36.76.96
+  76.96.96   96.96.26   96.26.26   26.26.36   26.36.66   36.66.36   66.36.36
+  36.36.97   36.97.27   97.27.97   27.97.67   97.67.77   67.77.47   77.47.7
+  47.7.47   7.47.87   47.87.37   87.37.87   37.87.77   87.77.7   77.7.57
+  7.57.47   57.47.47   47.47.37   47.37.27   37.27.17   27.17.7   17.7.38
+  7.38.68   38.68.78   68.78.8   78.8.28   8.28.98   28.98.78   98.78.58
+  78.58.98   58.98.8   98.8.88   8.88.8   88.8.58   8.58.58   58.58.58
+  58.58.38   58.38.89   38.89.59   89.59.39   59.39.99   39.99.29   99.29.59
+  29.59.89   59.89.89   89.89.29   89.29.9   29.9.79   9.79.49   79.49.59
+  49.59.29   59.29.59   29.59.19   59.19.39   19.39.9   39.9.9   9.9.99}
+
+do_execsql_test 1.6.14.6 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.6.14.7 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (win1 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING) 
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a)
+    ORDER BY 1
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.6.14.8 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (win1 ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING) 
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a ORDER BY b%10)
+    ORDER BY 1
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.6.14.9 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER win2
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a ORDER BY b%10),
+           win2 AS (win1 ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING)
+    ORDER BY 1
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.6.15.1 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE a%2=0) OVER win FROM t2
+    WINDOW win AS (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING)
+} {0 {}   0 {}   1 89   2 89   3 89.96   3 96   3 96.38   3 38   3 38.39
+  3 39   3 39.91   3 91   3 91.6   3 6   3 6.97   3 97   3 97.46   3 46
+  3 46.54   3 54   3 54.8   3 8   3 8.29   3 29   3 29.84   3 84   3 84.23
+  3 23   3 23.16   3 16   3 16.65   3 65   3 65.47   3 47   3 47.86   3 86
+  3 86.61   3 61   3 61.85   3 85   3 85.85   3 85   3 85.59   3 59   3 59.32
+  3 32   3 32.3   3 3   3 3.22   3 22   3 22.55   3 55   3 55.28   3 28
+  3 28.25   3 25   3 25.1   3 1   3 1.40   3 40   3 40.56   3 56   3 56.75
+  3 75   3 75.89   3 89   3 89.76   3 76   3 76.4   3 4   3 4.42   3 42
+  3 42.78   3 78   3 78.29   3 29   3 29.63   3 63   3 63.87   3 87   3 87.80
+  3 80   3 80.72   3 72   3 72.9   3 9   3 9.73   3 73   3 73.65   3 65
+  3 65.58   3 58   3 58.98   3 98   3 98.21   3 21   3 21.65   3 65   3 65.5
+  3 5   3 5.11   3 11   3 11.87   3 87   3 87.12   3 12   3 12.20   3 20
+  3 20.31   3 31   3 31.95   3 95   3 95.73   3 73   3 73.88   3 88   3 88.8
+  3 8   3 8.49   3 49   3 49.90   3 90   3 90.96   3 96   3 96.55   3 55
+  3 55.77   3 77   3 77.2   3 2   3 2.85   3 85   3 85.74   3 74   3 74.70
+  3 70   3 70.19   3 19   3 19.26   3 26   3 26.47   3 47   3 47.90   3 90
+  3 90.58   3 58   3 58.9   3 9   3 9.72   3 72   3 72.33   3 33   3 33.75
+  3 75   3 75.81   3 81   3 81.23   3 23   3 23.13   3 13   3 13.14   3 14
+  3 14.91   3 91   3 91.91   3 91   3 91.15   3 15   3 15.36   3 36   3 36.3
+  3 3   3 3.69   3 69   3 69.52   3 52   3 52.50   3 50   3 50.10   3 10
+  3 10.33   3 33   3 33.39   3 39   3 39.58   3 58   3 58.38   3 38   3 38.83
+  3 83   3 83.82}
+
+do_execsql_test 1.6.15.2 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE 0=1) OVER win FROM t2
+    WINDOW win AS (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING)
+} {0 {}   0 {}   1 {}   2 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}}
+
+do_execsql_test 1.6.15.3 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE 1=0) OVER win FROM t2
+    WINDOW win AS (PARTITION BY (a%10) ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING)
+} {0 {}   0 {}   1 {}   2 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   0 {}   0 {}
+  1 {}   2 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   0 {}   0 {}   1 {}   2 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   0 {}   0 {}   1 {}   2 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  0 {}   0 {}   1 {}   2 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   0 {}   0 {}   1 {}
+  2 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   0 {}   0 {}   1 {}   2 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   0 {}   0 {}   1 {}   2 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   0 {}
+  0 {}   1 {}   2 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   0 {}   0 {}   1 {}   2 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}}
+
+do_execsql_test 1.6.15.4 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE a%2=0) OVER win FROM t2
+    WINDOW win AS (PARTITION BY (a%10) ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 PRECEDING)
+} {0 {}   0 {}   1 89   2 89.6   3 89.6.29   3 6.29.47   3 29.47.59
+  3 47.59.28   3 59.28.75   3 28.75.78   3 75.78.72   3 78.72.98   3 72.98.87
+  3 98.87.73   3 87.73.96   3 73.96.74   3 96.74.90   3 74.90.75   3 90.75.91
+  3 75.91.69   0 {}   0 {}   1 {}   2 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   0 {}
+  0 {}   1 96   2 96.97   3 96.97.84   3 97.84.86   3 84.86.32   3 86.32.25
+  3 32.25.89   3 25.89.29   3 89.29.9   3 29.9.21   3 9.21.12   3 21.12.88
+  3 12.88.55   3 88.55.70   3 55.70.58   3 70.58.81   3 58.81.91   0 {}
+  0 {}   1 {}   2 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   0 {}   0 {}   1 38
+  2 38.46   3 38.46.23   3 46.23.61   3 23.61.3   3 61.3.1   3 3.1.76
+  3 1.76.63   3 76.63.73   3 63.73.65   3 73.65.20   3 65.20.8   3 20.8.77
+  3 8.77.19   3 77.19.9   3 19.9.23   3 9.23.15   0 {}   0 {}   1 {}   2 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   0 {}   0 {}   1 39   2 39.54   3 39.54.16
+  3 54.16.85   3 16.85.22   3 85.22.40   3 22.40.4   3 40.4.87   3 4.87.65
+  3 87.65.5   3 65.5.31   3 5.31.49   3 31.49.2   3 49.2.26   3 2.26.72
+  3 26.72.13   3 72.13.36   0 {}   0 {}   1 {}   2 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   0 {}   0 {}   1 91   2 91.8   3 91.8.65   3 8.65.85   3 65.85.55
+  3 85.55.56   3 55.56.42   3 56.42.80   3 42.80.58   3 80.58.11   3 58.11.95
+  3 11.95.90   3 95.90.85   3 90.85.47   3 85.47.33   3 47.33.14   3 33.14.3
+  0 {}   0 {}   1 {}   2 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}}
+
+do_execsql_test 1.7.2.1 {
+  SELECT max(b) OVER ( ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {89   89   96   96   96   96   96   96   96   96   96   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99}
+
+do_execsql_test 1.7.2.2 {
+  SELECT min(b) OVER ( ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {89   81   81   59   38   38   38   38   38   38   6   6   6   6   6   6   6
+  6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6
+  6   6   6   6   6   6   6   6   3   3   3   3   3   3   3   3   3   3   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1}
+
+do_execsql_test 1.7.3.1 {
+  SELECT row_number() OVER ( ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.7.3.2 {
+  SELECT row_number() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.7.3.3 {
+  SELECT row_number() OVER ( ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.7.4.1 {
+  SELECT dense_rank() OVER ( ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.7.4.2 {
+  SELECT dense_rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.7.4.3 {
+  SELECT dense_rank() OVER ( ORDER BY b ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {1   1   2   2   3   3   4   5   6   7   7   7   8   8   8   9   9   9   10
+  11   11   12   12   12   13   13   14   15   15   15   16   16   16   17
+  18   19   20   20   21   21   22   22   23   24   25   25   26   26   27
+  28   28   28   29   29   29   30   30   31   32   32   32   32   33   33
+  33   33   34   34   35   35   35   35   36   36   37   37   38   38   38
+  39   40   40   41   42   42   43   43   44   44   45   45   45   45   46
+  47   48   49   50   51   52   52   53   53   53   54   55   55   55   55
+  56   56   56   56   57   58   58   59   59   60   61   62   62   62   63
+  64   65   66   67   68   68   68   69   69   69   70   70   70   71   71
+  71   72   73   73   74   74   75   76   76   77   77   77   78   79   80
+  80   80   80   81   81   81   82   83   83   84   85   85   85   86   86
+  86   87   87   87   87   87   88   88   88   89   90   90   90   91   91
+  91   92   92   93   93   94   94}
+
+do_execsql_test 1.7.4.4 {
+  SELECT dense_rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {1   2   3   3   3   4   5   6   7   8   8   9   9   9   1   1   2   2   3
+  3   4   4   5   5   6   7   7   8   8   8   9   9   9   9   9   1   1   2
+  2   2   3   3   4   5   6   7   7   8   8   8   9   1   1   2   2   3   3
+  4   4   4   4   5   5   6   7   8   8   8   9   10   10   10   1   2   3
+  4   4   4   4   5   5   6   7   8   8   8   9   9   9   9   10   1   2   2
+  2   3   4   4   5   5   6   6   6   7   7   7   8   8   8   9   9   9   1
+  2   2   2   3   3   4   4   4   4   5   5   6   6   6   7   8   9   10   10
+  10   1   1   1   2   3   3   4   4   5   5   5   5   6   7   8   8   9   9
+  10   10   1   1   1   2   3   3   4   4   4   4   5   6   6   7   8   8   1
+  1   1   2   3   3   3   4   4   4   5   6   6   6   6   7   8   9   9   9
+  10   10}
+
+do_execsql_test 1.7.4.5 {
+  SELECT dense_rank() OVER ( ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   4   4   4   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5   5   5   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   6   6   6   6
+  6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   7   7
+  7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7
+  8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8
+  8   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   10   10
+  10   10   10   10   10   10   10   10   10   10   10   10   10   10   10
+  10   10   10   10   10}
+
+do_execsql_test 1.7.4.6 {
+  SELECT dense_rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   3   3   3   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   4   4   4   4   4   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   5   5   5   5   5   5
+  5   5   5   5   5   5   5   5   5   5   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5
+  5}
+
+do_execsql_test 1.7.5.1 {
+  SELECT rank() OVER ( ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.7.5.2 {
+  SELECT rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.7.5.3 {
+  SELECT rank() OVER ( ORDER BY b ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {1   1   3   3   5   5   7   8   9   10   10   10   13   13   13   16   16
+  16   19   20   20   22   22   22   25   25   27   28   28   28   31   31
+  31   34   35   36   37   37   39   39   41   41   43   44   45   45   47
+  47   49   50   50   50   53   53   53   56   56   58   59   59   59   59
+  63   63   63   63   67   67   69   69   69   69   73   73   75   75   77
+  77   77   80   81   81   83   84   84   86   86   88   88   90   90   90
+  90   94   95   96   97   98   99   100   100   102   102   102   105   106
+  106   106   106   110   110   110   110   114   115   115   117   117   119
+  120   121   121   121   124   125   126   127   128   129   129   129   132
+  132   132   135   135   135   138   138   138   141   142   142   144   144
+  146   147   147   149   149   149   152   153   154   154   154   154   158
+  158   158   161   162   162   164   165   165   165   168   168   168   171
+  171   171   171   171   176   176   176   179   180   180   180   183   183
+  183   186   186   188   188   190   190}
+
+do_execsql_test 1.7.5.4 {
+  SELECT rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {1   2   3   3   3   6   7   8   9   10   10   12   12   12   1   1   3   3
+  5   5   7   7   9   9   11   12   12   14   14   14   17   17   17   17
+  17   1   1   3   3   3   6   6   8   9   10   11   11   13   13   13   16
+  1   1   3   3   5   5   7   7   7   7   11   11   13   14   15   15   15
+  18   19   19   19   1   2   3   4   4   4   4   8   8   10   11   12   12
+  12   15   15   15   15   19   1   2   2   2   5   6   6   8   8   10   10
+  10   13   13   13   16   16   16   19   19   19   1   2   2   2   5   5   7
+  7   7   7   11   11   13   13   13   16   17   18   19   19   19   1   1
+  1   4   5   5   7   7   9   9   9   9   13   14   15   15   17   17   19
+  19   1   1   1   4   5   5   7   7   7   7   11   12   12   14   15   15
+  1   1   1   4   5   5   5   8   8   8   11   12   12   12   12   16   17
+  18   18   18   21   21}
+
+do_execsql_test 1.7.5.5 {
+  SELECT rank() OVER ( ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   15   15   15   15
+  15   15   15   15   15   15   15   15   15   15   15   15   15   15   15
+  15   15   36   36   36   36   36   36   36   36   36   36   36   36   36
+  36   36   36   52   52   52   52   52   52   52   52   52   52   52   52
+  52   52   52   52   52   52   52   52   52   73   73   73   73   73   73
+  73   73   73   73   73   73   73   73   73   73   73   73   73   92   92
+  92   92   92   92   92   92   92   92   92   92   92   92   92   92   92
+  92   92   92   92   113   113   113   113   113   113   113   113   113
+  113   113   113   113   113   113   113   113   113   113   113   113   134
+  134   134   134   134   134   134   134   134   134   134   134   134   134
+  134   134   134   134   134   134   154   154   154   154   154   154   154
+  154   154   154   154   154   154   154   154   154   170   170   170   170
+  170   170   170   170   170   170   170   170   170   170   170   170   170
+  170   170   170   170   170}
+
+do_execsql_test 1.7.5.6 {
+  SELECT rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   15   15   15   15
+  15   15   15   15   15   15   15   15   15   15   15   15   31   31   31
+  31   31   31   31   31   31   31   31   31   31   31   31   31   31   31
+  31   50   50   50   50   50   50   50   50   50   50   50   50   50   50
+  50   50   50   50   50   50   50   71   71   71   71   71   71   71   71
+  71   71   71   71   71   71   71   71   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   22   22   22   22   22   22
+  22   22   22   22   22   22   22   22   22   22   22   22   22   22   22
+  43   43   43   43   43   43   43   43   43   43   43   43   43   43   43
+  43   43   43   43   43   43   64   64   64   64   64   64   64   64   64
+  64   64   64   64   64   64   64   64   64   64   64   84   84   84   84
+  84   84   84   84   84   84   84   84   84   84   84   84   84   84   84
+  84   84   84}
+
+do_execsql_test 1.7.6.1 {
+  SELECT 
+      row_number() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ),
+      rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ),
+      dense_rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW )
+    FROM t2
+} {1 1 1   2 1 1   3 1 1   4 1 1   5 1 1   6 1 1   7 1 1   8 1 1   9 1 1
+  10 1 1   11 1 1   12 1 1   13 1 1   14 1 1   15 15 2   16 15 2   17 15 2
+  18 15 2   19 15 2   20 15 2   21 15 2   22 15 2   23 15 2   24 15 2
+  25 15 2   26 15 2   27 15 2   28 15 2   29 15 2   30 15 2   31 31 3
+  32 31 3   33 31 3   34 31 3   35 31 3   36 31 3   37 31 3   38 31 3
+  39 31 3   40 31 3   41 31 3   42 31 3   43 31 3   44 31 3   45 31 3
+  46 31 3   47 31 3   48 31 3   49 31 3   50 50 4   51 50 4   52 50 4
+  53 50 4   54 50 4   55 50 4   56 50 4   57 50 4   58 50 4   59 50 4
+  60 50 4   61 50 4   62 50 4   63 50 4   64 50 4   65 50 4   66 50 4
+  67 50 4   68 50 4   69 50 4   70 50 4   71 71 5   72 71 5   73 71 5
+  74 71 5   75 71 5   76 71 5   77 71 5   78 71 5   79 71 5   80 71 5
+  81 71 5   82 71 5   83 71 5   84 71 5   85 71 5   86 71 5   1 1 1   2 1 1
+  3 1 1   4 1 1   5 1 1   6 1 1   7 1 1   8 1 1   9 1 1   10 1 1   11 1 1
+  12 1 1   13 1 1   14 1 1   15 1 1   16 1 1   17 1 1   18 1 1   19 1 1
+  20 1 1   21 1 1   22 22 2   23 22 2   24 22 2   25 22 2   26 22 2   27 22 2
+  28 22 2   29 22 2   30 22 2   31 22 2   32 22 2   33 22 2   34 22 2
+  35 22 2   36 22 2   37 22 2   38 22 2   39 22 2   40 22 2   41 22 2
+  42 22 2   43 43 3   44 43 3   45 43 3   46 43 3   47 43 3   48 43 3
+  49 43 3   50 43 3   51 43 3   52 43 3   53 43 3   54 43 3   55 43 3
+  56 43 3   57 43 3   58 43 3   59 43 3   60 43 3   61 43 3   62 43 3
+  63 43 3   64 64 4   65 64 4   66 64 4   67 64 4   68 64 4   69 64 4
+  70 64 4   71 64 4   72 64 4   73 64 4   74 64 4   75 64 4   76 64 4
+  77 64 4   78 64 4   79 64 4   80 64 4   81 64 4   82 64 4   83 64 4
+  84 84 5   85 84 5   86 84 5   87 84 5   88 84 5   89 84 5   90 84 5
+  91 84 5   92 84 5   93 84 5   94 84 5   95 84 5   96 84 5   97 84 5
+  98 84 5   99 84 5   100 84 5   101 84 5   102 84 5   103 84 5   104 84 5
+  105 84 5}
+
+
+do_test 1.7.7.1 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0053 0.0105 0.0158 0.0211 0.0263 0.0316 0.0368 0.0421 0.0474 0.0526 0.0579 0.0632 0.0684 0.0737 0.0789 0.0842 0.0895 0.0947 0.1000 0.1053 0.1105 0.1158 0.1211 0.1263 0.1316 0.1368 0.1421 0.1474 0.1526 0.1579 0.1632 0.1684 0.1737 0.1789 0.1842 0.1895 0.1947 0.2000 0.2053 0.2105 0.2158 0.2211 0.2263 0.2316 0.2368 0.2421 0.2474 0.2526 0.2579 0.2632 0.2684 0.2737 0.2789 0.2842 0.2895 0.2947 0.3000 0.3053 0.3105 0.3158 0.3211 0.3263 0.3316 0.3368 0.3421 0.3474 0.3526 0.3579 0.3632 0.3684 0.3737 0.3789 0.3842 0.3895 0.3947 0.4000 0.4053 0.4105 0.4158 0.4211 0.4263 0.4316 0.4368 0.4421 0.4474 0.4526 0.4579 0.4632 0.4684 0.4737 0.4789 0.4842 0.4895 0.4947 0.5000 0.5053 0.5105 0.5158 0.5211 0.5263 0.5316 0.5368 0.5421 0.5474 0.5526 0.5579 0.5632 0.5684 0.5737 0.5789 0.5842 0.5895 0.5947 0.6000 0.6053 0.6105 0.6158 0.6211 0.6263 0.6316 0.6368 0.6421 0.6474 0.6526 0.6579 0.6632 0.6684 0.6737 0.6789 0.6842 0.6895 0.6947 0.7000 0.7053 0.7105 0.7158 0.7211 0.7263 0.7316 0.7368 0.7421 0.7474 0.7526 0.7579 0.7632 0.7684 0.7737 0.7789 0.7842 0.7895 0.7947 0.8000 0.8053 0.8105 0.8158 0.8211 0.8263 0.8316 0.8368 0.8421 0.8474 0.8526 0.8579 0.8632 0.8684 0.8737 0.8789 0.8842 0.8895 0.8947 0.9000 0.9053 0.9105 0.9158 0.9211 0.9263 0.9316 0.9368 0.9421 0.9474 0.9526 0.9579 0.9632 0.9684 0.9737 0.9789 0.9842 0.9895 0.9947 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.7.7.2 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0769 0.1538 0.2308 0.3077 0.3846 0.4615 0.5385 0.6154 0.6923 0.7692 0.8462 0.9231 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0667 0.1333 0.2000 0.2667 0.3333 0.4000 0.4667 0.5333 0.6000 0.6667 0.7333 0.8000 0.8667 0.9333 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0556 0.1111 0.1667 0.2222 0.2778 0.3333 0.3889 0.4444 0.5000 0.5556 0.6111 0.6667 0.7222 0.7778 0.8333 0.8889 0.9444 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0526 0.1053 0.1579 0.2105 0.2632 0.3158 0.3684 0.4211 0.4737 0.5263 0.5789 0.6316 0.6842 0.7368 0.7895 0.8421 0.8947 0.9474 1.0000 0.0000 0.0667 0.1333 0.2000 0.2667 0.3333 0.4000 0.4667 0.5333 0.6000 0.6667 0.7333 0.8000 0.8667 0.9333 1.0000 0.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.7.7.3 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY b ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0105 0.0105 0.0211 0.0211 0.0316 0.0368 0.0421 0.0474 0.0474 0.0474 0.0632 0.0632 0.0632 0.0789 0.0789 0.0789 0.0947 0.1000 0.1000 0.1105 0.1105 0.1105 0.1263 0.1263 0.1368 0.1421 0.1421 0.1421 0.1579 0.1579 0.1579 0.1737 0.1789 0.1842 0.1895 0.1895 0.2000 0.2000 0.2105 0.2105 0.2211 0.2263 0.2316 0.2316 0.2421 0.2421 0.2526 0.2579 0.2579 0.2579 0.2737 0.2737 0.2737 0.2895 0.2895 0.3000 0.3053 0.3053 0.3053 0.3053 0.3263 0.3263 0.3263 0.3263 0.3474 0.3474 0.3579 0.3579 0.3579 0.3579 0.3789 0.3789 0.3895 0.3895 0.4000 0.4000 0.4000 0.4158 0.4211 0.4211 0.4316 0.4368 0.4368 0.4474 0.4474 0.4579 0.4579 0.4684 0.4684 0.4684 0.4684 0.4895 0.4947 0.5000 0.5053 0.5105 0.5158 0.5211 0.5211 0.5316 0.5316 0.5316 0.5474 0.5526 0.5526 0.5526 0.5526 0.5737 0.5737 0.5737 0.5737 0.5947 0.6000 0.6000 0.6105 0.6105 0.6211 0.6263 0.6316 0.6316 0.6316 0.6474 0.6526 0.6579 0.6632 0.6684 0.6737 0.6737 0.6737 0.6895 0.6895 0.6895 0.7053 0.7053 0.7053 0.7211 0.7211 0.7211 0.7368 0.7421 0.7421 0.7526 0.7526 0.7632 0.7684 0.7684 0.7789 0.7789 0.7789 0.7947 0.8000 0.8053 0.8053 0.8053 0.8053 0.8263 0.8263 0.8263 0.8421 0.8474 0.8474 0.8579 0.8632 0.8632 0.8632 0.8789 0.8789 0.8789 0.8947 0.8947 0.8947 0.8947 0.8947 0.9211 0.9211 0.9211 0.9368 0.9421 0.9421 0.9421 0.9579 0.9579 0.9579 0.9737 0.9737 0.9842 0.9842 0.9947 0.9947}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.7.7.4 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0769 0.1538 0.1538 0.1538 0.3846 0.4615 0.5385 0.6154 0.6923 0.6923 0.8462 0.8462 0.8462 0.0000 0.0000 0.1000 0.1000 0.2000 0.2000 0.3000 0.3000 0.4000 0.4000 0.5000 0.5500 0.5500 0.6500 0.6500 0.6500 0.8000 0.8000 0.8000 0.8000 0.8000 0.0000 0.0000 0.1333 0.1333 0.1333 0.3333 0.3333 0.4667 0.5333 0.6000 0.6667 0.6667 0.8000 0.8000 0.8000 1.0000 0.0000 0.0000 0.1000 0.1000 0.2000 0.2000 0.3000 0.3000 0.3000 0.3000 0.5000 0.5000 0.6000 0.6500 0.7000 0.7000 0.7000 0.8500 0.9000 0.9000 0.9000 0.0000 0.0556 0.1111 0.1667 0.1667 0.1667 0.1667 0.3889 0.3889 0.5000 0.5556 0.6111 0.6111 0.6111 0.7778 0.7778 0.7778 0.7778 1.0000 0.0000 0.0500 0.0500 0.0500 0.2000 0.2500 0.2500 0.3500 0.3500 0.4500 0.4500 0.4500 0.6000 0.6000 0.6000 0.7500 0.7500 0.7500 0.9000 0.9000 0.9000 0.0000 0.0500 0.0500 0.0500 0.2000 0.2000 0.3000 0.3000 0.3000 0.3000 0.5000 0.5000 0.6000 0.6000 0.6000 0.7500 0.8000 0.8500 0.9000 0.9000 0.9000 0.0000 0.0000 0.0000 0.1579 0.2105 0.2105 0.3158 0.3158 0.4211 0.4211 0.4211 0.4211 0.6316 0.6842 0.7368 0.7368 0.8421 0.8421 0.9474 0.9474 0.0000 0.0000 0.0000 0.2000 0.2667 0.2667 0.4000 0.4000 0.4000 0.4000 0.6667 0.7333 0.7333 0.8667 0.9333 0.9333 0.0000 0.0000 0.0000 0.1429 0.1905 0.1905 0.1905 0.3333 0.3333 0.3333 0.4762 0.5238 0.5238 0.5238 0.5238 0.7143 0.7619 0.8095 0.8095 0.8095 0.9524 0.9524}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.7.7.5 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.7.7.6 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER (PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.7.8.1 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0052 0.0105 0.0157 0.0209 0.0262 0.0314 0.0366 0.0419 0.0471 0.0524 0.0576 0.0628 0.0681 0.0733 0.0785 0.0838 0.0890 0.0942 0.0995 0.1047 0.1099 0.1152 0.1204 0.1257 0.1309 0.1361 0.1414 0.1466 0.1518 0.1571 0.1623 0.1675 0.1728 0.1780 0.1832 0.1885 0.1937 0.1990 0.2042 0.2094 0.2147 0.2199 0.2251 0.2304 0.2356 0.2408 0.2461 0.2513 0.2565 0.2618 0.2670 0.2723 0.2775 0.2827 0.2880 0.2932 0.2984 0.3037 0.3089 0.3141 0.3194 0.3246 0.3298 0.3351 0.3403 0.3455 0.3508 0.3560 0.3613 0.3665 0.3717 0.3770 0.3822 0.3874 0.3927 0.3979 0.4031 0.4084 0.4136 0.4188 0.4241 0.4293 0.4346 0.4398 0.4450 0.4503 0.4555 0.4607 0.4660 0.4712 0.4764 0.4817 0.4869 0.4921 0.4974 0.5026 0.5079 0.5131 0.5183 0.5236 0.5288 0.5340 0.5393 0.5445 0.5497 0.5550 0.5602 0.5654 0.5707 0.5759 0.5812 0.5864 0.5916 0.5969 0.6021 0.6073 0.6126 0.6178 0.6230 0.6283 0.6335 0.6387 0.6440 0.6492 0.6545 0.6597 0.6649 0.6702 0.6754 0.6806 0.6859 0.6911 0.6963 0.7016 0.7068 0.7120 0.7173 0.7225 0.7277 0.7330 0.7382 0.7435 0.7487 0.7539 0.7592 0.7644 0.7696 0.7749 0.7801 0.7853 0.7906 0.7958 0.8010 0.8063 0.8115 0.8168 0.8220 0.8272 0.8325 0.8377 0.8429 0.8482 0.8534 0.8586 0.8639 0.8691 0.8743 0.8796 0.8848 0.8901 0.8953 0.9005 0.9058 0.9110 0.9162 0.9215 0.9267 0.9319 0.9372 0.9424 0.9476 0.9529 0.9581 0.9634 0.9686 0.9738 0.9791 0.9843 0.9895 0.9948 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.7.8.2 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0714 0.1429 0.2143 0.2857 0.3571 0.4286 0.5000 0.5714 0.6429 0.7143 0.7857 0.8571 0.9286 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0625 0.1250 0.1875 0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250 0.6875 0.7500 0.8125 0.8750 0.9375 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0526 0.1053 0.1579 0.2105 0.2632 0.3158 0.3684 0.4211 0.4737 0.5263 0.5789 0.6316 0.6842 0.7368 0.7895 0.8421 0.8947 0.9474 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0625 0.1250 0.1875 0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250 0.6875 0.7500 0.8125 0.8750 0.9375 1.0000 0.0455 0.0909 0.1364 0.1818 0.2273 0.2727 0.3182 0.3636 0.4091 0.4545 0.5000 0.5455 0.5909 0.6364 0.6818 0.7273 0.7727 0.8182 0.8636 0.9091 0.9545 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.7.8.3 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY b ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0105 0.0105 0.0209 0.0209 0.0314 0.0314 0.0366 0.0419 0.0471 0.0628 0.0628 0.0628 0.0785 0.0785 0.0785 0.0942 0.0942 0.0942 0.0995 0.1099 0.1099 0.1257 0.1257 0.1257 0.1361 0.1361 0.1414 0.1571 0.1571 0.1571 0.1728 0.1728 0.1728 0.1780 0.1832 0.1885 0.1990 0.1990 0.2094 0.2094 0.2199 0.2199 0.2251 0.2304 0.2408 0.2408 0.2513 0.2513 0.2565 0.2723 0.2723 0.2723 0.2880 0.2880 0.2880 0.2984 0.2984 0.3037 0.3246 0.3246 0.3246 0.3246 0.3455 0.3455 0.3455 0.3455 0.3560 0.3560 0.3770 0.3770 0.3770 0.3770 0.3874 0.3874 0.3979 0.3979 0.4136 0.4136 0.4136 0.4188 0.4293 0.4293 0.4346 0.4450 0.4450 0.4555 0.4555 0.4660 0.4660 0.4869 0.4869 0.4869 0.4869 0.4921 0.4974 0.5026 0.5079 0.5131 0.5183 0.5288 0.5288 0.5445 0.5445 0.5445 0.5497 0.5707 0.5707 0.5707 0.5707 0.5916 0.5916 0.5916 0.5916 0.5969 0.6073 0.6073 0.6178 0.6178 0.6230 0.6283 0.6440 0.6440 0.6440 0.6492 0.6545 0.6597 0.6649 0.6702 0.6859 0.6859 0.6859 0.7016 0.7016 0.7016 0.7173 0.7173 0.7173 0.7330 0.7330 0.7330 0.7382 0.7487 0.7487 0.7592 0.7592 0.7644 0.7749 0.7749 0.7906 0.7906 0.7906 0.7958 0.8010 0.8220 0.8220 0.8220 0.8220 0.8377 0.8377 0.8377 0.8429 0.8534 0.8534 0.8586 0.8743 0.8743 0.8743 0.8901 0.8901 0.8901 0.9162 0.9162 0.9162 0.9162 0.9162 0.9319 0.9319 0.9319 0.9372 0.9529 0.9529 0.9529 0.9686 0.9686 0.9686 0.9791 0.9791 0.9895 0.9895 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.7.8.4 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0714 0.1429 0.3571 0.3571 0.3571 0.4286 0.5000 0.5714 0.6429 0.7857 0.7857 1.0000 1.0000 1.0000 0.0952 0.0952 0.1905 0.1905 0.2857 0.2857 0.3810 0.3810 0.4762 0.4762 0.5238 0.6190 0.6190 0.7619 0.7619 0.7619 1.0000 1.0000 1.0000 1.0000 1.0000 0.1250 0.1250 0.3125 0.3125 0.3125 0.4375 0.4375 0.5000 0.5625 0.6250 0.7500 0.7500 0.9375 0.9375 0.9375 1.0000 0.0952 0.0952 0.1905 0.1905 0.2857 0.2857 0.4762 0.4762 0.4762 0.4762 0.5714 0.5714 0.6190 0.6667 0.8095 0.8095 0.8095 0.8571 1.0000 1.0000 1.0000 0.0526 0.1053 0.1579 0.3684 0.3684 0.3684 0.3684 0.4737 0.4737 0.5263 0.5789 0.7368 0.7368 0.7368 0.9474 0.9474 0.9474 0.9474 1.0000 0.0476 0.1905 0.1905 0.1905 0.2381 0.3333 0.3333 0.4286 0.4286 0.5714 0.5714 0.5714 0.7143 0.7143 0.7143 0.8571 0.8571 0.8571 1.0000 1.0000 1.0000 0.0476 0.1905 0.1905 0.1905 0.2857 0.2857 0.4762 0.4762 0.4762 0.4762 0.5714 0.5714 0.7143 0.7143 0.7143 0.7619 0.8095 0.8571 1.0000 1.0000 1.0000 0.1500 0.1500 0.1500 0.2000 0.3000 0.3000 0.4000 0.4000 0.6000 0.6000 0.6000 0.6000 0.6500 0.7000 0.8000 0.8000 0.9000 0.9000 1.0000 1.0000 0.1875 0.1875 0.1875 0.2500 0.3750 0.3750 0.6250 0.6250 0.6250 0.6250 0.6875 0.8125 0.8125 0.8750 1.0000 1.0000 0.1364 0.1364 0.1364 0.1818 0.3182 0.3182 0.3182 0.4545 0.4545 0.4545 0.5000 0.6818 0.6818 0.6818 0.6818 0.7273 0.7727 0.9091 0.9091 0.9091 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.7.8.5 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.7.8.6 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.7.8.1 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(100) OVER ( ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 88.0000 89.0000 89.0000 90.0000 90.0000 91.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.7.8.2 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(101) OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 22.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.7.8.3 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(102) OVER ( ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 88.0000 89.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.7.8.4 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(103) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 22.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.7.8.5 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(104) OVER ( ORDER BY b%10,a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000 103.0000 104.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.7.8.6 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(105) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.7.8.7 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(105) OVER ( ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 88.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000 103.0000 104.0000 105.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+do_execsql_test 1.7.9.1 {
+  SELECT last_value(a+b) OVER ( ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {99   92   108   72   52   83   55   79   109   65   26   120   119   50
+  70   103   80   124   36   96   59   124   116   110   57   51   52   130
+  103   74   87   48   128   117   105   136   131   71   133   92   109   63
+  84   109   57   146   78   147   113   74   88   150   87   110   65   121
+  106   110   124   85   145   107   161   171   150   156   80   171   120
+  109   158   114   111   136   147   87   173   124   168   173   162   132
+  101   154   167   190   161   110   156   195   198   102   123   177   169
+  140   111   180   119   160   197   152   124   121   134   146   147   132
+  213   141   193   200   210   157   132   136   175   161   218   188   226
+  191   187   208   211   179   138   144   223   196   214   170   212   202
+  163   184   172   173   195   229   240   187   210   200   163   227   228
+  223   191   252   235   225   243   172   187   202   179   179   182   231
+  261   207   263   206   189   209   212   276   181   274   249   239   234
+  213   234   269   196   271   221   210   229   235   250   223   232   229
+  279   224   280   216   207}
+
+do_execsql_test 1.7.9.2 {
+  SELECT last_value(a+b) OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {147   106   109   168   134   218   191   212   229   240   213   234   196
+  223   92   109   105   136   146   65   156   132   154   102   123   119
+  160   152   146   147   136   243   261   263   210   79   63   84   78
+  120   87   162   124   141   138   227   228   179   231   234   280   124
+  57   130   92   57   110   114   136   147   167   110   180   193   191
+  252   187   179   206   181   221   279   80   116   117   71   80   171
+  173   177   157   161   179   214   225   182   209   269   271   235   229
+  103   74   131   133   113   74   87   145   190   161   169   140   111
+  132   213   187   208   223   235   189   274   108   65   26   70   51
+  52   128   109   121   124   85   107   150   195   226   172   173   187
+  223   207   212   119   50   124   96   110   87   48   110   173   124
+  197   211   144   196   195   200   202   224   216   207   52   83   103
+  36   88   171   158   156   198   121   210   132   210   239   250   232
+  99   72   55   120   59   109   150   161   111   101   200   175   188
+  170   202   163   184   163   172   276   249   229}
+
+do_execsql_test 1.7.9.3 {
+  SELECT last_value(a+b) OVER ( ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {65   102   87   138   57   181   80   111   26   48   144   207   36   121
+  132   101   163   172   196   119   136   63   124   179   110   179   182
+  74   132   189   51   52   85   216   163   134   123   210   78   141   57
+  187   71   87   172   173   50   224   88   59   111   170   109   213
+  223   146   147   84   114   191   206   221   157   161   209   229   74
+  140   107   187   207   212   124   202   52   232   55   184   229   106
+  132   152   120   92   110   179   235   65   70   87   110   195   200
+  175   234   160   234   136   80   113   187   109   121   124   196   156
+  210   239   250   72   109   188   202   191   105   154   79   231   147
+  225   103   161   169   223   96   83   249   212   162   227   228   167
+  180   193   117   177   214   145   208   235   150   110   211   103   158
+  200   168   229   92   156   243   280   279   116   173   269   271   131
+  133   223   128   173   197   210   99   150   161   147   218   240   109
+  136   146   261   263   124   130   252   171   190   213   274   108   195
+  226   119   124   171   198   120   276}
+
+do_execsql_test 1.7.9.4 {
+  SELECT last_value(a+b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {196   134   109   213   223   106   234   191   212   168   229   147   218
+  240   65   102   119   136   123   210   146   147   132   152   160   105
+  154   92   156   243   109   136   146   261   263   87   138   63   124
+  179   78   141   84   120   234   79   231   162   227   228   280   57
+  181   110   179   57   187   114   191   206   221   92   110   136   147
+  167   180   193   279   124   130   252   80   182   71   157   161   209
+  229   179   235   80   225   117   177   214   116   173   269   271   171
+  111   74   132   189   87   74   140   113   187   103   161   169   145
+  208   235   131   133   223   190   213   274   26   51   52   85   172
+  173   107   187   207   212   65   70   109   121   124   223   150   128
+  108   195   226   48   144   207   216   50   224   124   202   87   110
+  195   200   196   96   110   211   173   197   119   124   36   121   132
+  88   52   232   156   210   239   250   83   103   158   210   171   198
+  101   163   172   163   59   111   170   55   184   229   175   72   109
+  188   202   249   200   99   150   161   120   276}
+
+do_execsql_test 1.7.9.5 {
+  SELECT last_value(a+b) OVER ( ORDER BY b%10,a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {147   106   109   168   134   218   191   212   229   240   213   234   196
+  223   92   109   105   136   146   65   156   132   154   102   123   119
+  160   152   146   147   136   243   261   263   210   79   63   84   78
+  120   87   162   124   141   138   227   228   179   231   234   280   124
+  57   130   92   57   110   114   136   147   167   110   180   193   191
+  252   187   179   206   181   221   279   80   116   117   71   80   171
+  173   177   157   161   179   214   225   182   209   269   271   235   229
+  103   74   131   133   113   74   87   145   190   161   169   140   111
+  132   213   187   208   223   235   189   274   108   65   26   70   51
+  52   128   109   121   124   85   107   150   195   226   172   173   187
+  223   207   212   119   50   124   96   110   87   48   110   173   124
+  197   211   144   196   195   200   202   224   216   207   52   83   103
+  36   88   171   158   156   198   121   210   132   210   239   250   232
+  99   72   55   120   59   109   150   161   111   101   200   175   188
+  170   202   163   184   163   172   276   249   229}
+
+do_execsql_test 1.7.9.6 {
+  SELECT last_value(a+b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t2
+} {108   52   83   79   65   26   70   103   80   36   116   51   52   128
+  117   71   63   84   109   78   147   88   121   106   124   85   107   171
+  150   80   171   120   109   158   87   168   173   162   156   195   198
+  177   124   121   134   141   210   157   132   161   218   226   191   179
+  138   214   212   172   173   229   240   187   210   227   228   223   225
+  179   182   231   207   209   212   239   234   213   234   269   196   271
+  235   250   223   232   229   280   99   92   72   55   109   120   119
+  50   124   96   59   124   110   57   130   103   74   87   48   105   136
+  131   133   92   109   57   146   113   74   150   87   110   65   110
+  145   161   156   114   111   136   147   173   124   132   101   154   167
+  190   161   110   102   123   169   140   111   180   119   160   197   152
+  146   147   132   213   193   200   136   175   188   187   208   211   144
+  223   196   170   202   163   184   195   200   163   191   252   235   243
+  172   187   202   179   261   263   206   189   276   181   274   249   221
+  210   229   279   224   216   207}
+
+do_execsql_test 1.7.10.1 {
+  SELECT nth_value(b,b+1) OVER (ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   39   {}   {}   {}   {}
+  {}   {}   {}   91   {}   {}   {}   {}   {}   77   54   54   {}   {}   {}
+  {}   62   {}   {}   {}   {}   {}   23   {}   {}   {}   97   86   {}   59
+  {}   84   {}   {}   78   65   {}   16   90   81   {}   59   56   40   54
+  {}   85   {}   {}   {}   {}   38   {}   32   47   {}   74   35   47   98
+  96   {}   24   {}   {}   29   12   46   36   53   {}   81   27   56   {}
+  {}   81   93   63   81   91   68   53   99   89   13   12   97   91   29
+  7   7   78   35   84   53   84   58   61   91   99   15   61   98   16   5
+  75   56   2   37   3   96   62   95   43   63   35   78   16   67   43   16
+  16   90   72   98   85   56   90   46   29   29   4   74   74   2   76   41
+  46   77   24   27   97   46   89   1   85   1   74   78   61   85   51   59
+  35   30   56   25   47   28   73   6   73   74   93   43   3   56   47   85
+  61   61   93   9   97   62}
+
+do_execsql_test 1.7.10.2 {
+  SELECT nth_value(b,b+1) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   91   {}   11   {}   {}   {}   {}
+  11   {}   {}   {}   {}   {}   {}   {}   {}   {}   32   {}   {}   {}   32
+  {}   {}   12   {}   {}   {}   {}   {}   {}   {}   43   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   33   {}   43   {}   {}   {}   {}   {}
+  {}   4   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   15   {}
+  {}   {}   {}   {}   {}   55   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   47   {}   {}   {}   {}
+  {}   27   47   {}   {}   {}   {}   {}   {}   {}   {}   {}   98   {}   98
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}
+  {}   {}   {}   {}   {}   {}   9   9   {}   {}   {}}
+
+do_execsql_test 1.7.10.3 {
+  SELECT nth_value(b,b+1) OVER ( ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {{}   1   2   2   2   2   3   3   4   5   5   5   6   6   6   7   7   7   7
+  7   7   8   8   8   8   8   8   9   9   9   9   9   9   9   11   11   12
+  12   12   12   12   12   13   13   14   14   15   15   15   15   15   15
+  16   16   16   16   16   16   17   17   17   17   19   19   19   19   20
+  20   21   21   21   21   21   21   22   22   22   22   22   23   23   23
+  24   25   25   26   26   27   27   27   27   27   27   29   29   29   30
+  30   30   31   31   31   31   31   32   33   33   33   33   33   33   33
+  33   33   33   33   34   34   34   34   34   34   34   35   35   36   36
+  36   37   37   37   37   37   37   38   38   38   38   38   38   39   39
+  39   39   39   40   41   41   41   41   41   42   43   43   43   43   43
+  44   44   44   44   46   46   46   47   47   47   47   47   47   47   47
+  47   47   47   49   49   49   50   51   51   51   52   52   52   53   53
+  54   54   55   55}
+
+do_execsql_test 1.7.10.4 {
+  SELECT nth_value(b,b+1) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  1   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.7.10.5 {
+  SELECT nth_value(b,b+1) OVER ( ORDER BY b%10,a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   40   {}   {}   {}   40   41   50   {}   {}   {}   {}
+  50   {}   {}   {}   41   {}   10   91   61   {}   30   {}   10   61   30
+  {}   {}   10   {}   {}   {}   {}   1   {}   22   80   22   91   93   {}
+  {}   30   {}   {}   91   {}   1   30   91   80   91   {}   43   {}   74
+  21   20   {}   {}   74   21   21   2   74   33   81   21   64   64   2   21
+  93   62   14   14   3   91   11   24   55   93   93   62   90   91   55   3
+  24   14   24   91   55   15   72   60   72   61   61   34   43   43   43
+  61   12   4   15   15   51   51   12   23   12   12   25   41   25   13
+  94   12   70   12   84   32   84   94   70   33   12   12   32   41   91
+  70   22   33   84   80   31   75   84   53   75   80   84   80   53   53
+  53   22   44   63   42   95   31   63   44   44   31   90   74   52   63
+  31   63   1   42   90   90   95   3   42}
+
+do_execsql_test 1.7.10.6 {
+  SELECT nth_value(b,b+1) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.7.11.1 {
+  SELECT first_value(b) OVER (ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t2
+} {89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89}
+
+do_execsql_test 1.7.11.2 {
+  SELECT first_value(b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t2
+} {90   90   90   90   90   90   90   90   90   90   90   90   90   90   81
+  81   81   81   81   81   81   81   81   81   81   81   81   81   81   81
+  81   81   81   81   81   62   62   62   62   62   62   62   62   62   62
+  62   62   62   62   62   62   93   93   93   93   93   93   93   93   93
+  93   93   93   93   93   93   93   93   93   93   93   93   54   54   54
+  54   54   54   54   54   54   54   54   54   54   54   54   54   54   54
+  54   65   65   65   65   65   65   65   65   65   65   65   65   65   65
+  65   65   65   65   65   65   65   96   96   96   96   96   96   96   96
+  96   96   96   96   96   96   96   96   96   96   96   96   96   97   97
+  97   97   97   97   97   97   97   97   97   97   97   97   97   97   97
+  97   97   97   38   38   38   38   38   38   38   38   38   38   38   38
+  38   38   38   38   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89}
+
+do_execsql_test 1.7.11.3 {
+  SELECT first_value(b) OVER ( ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1}
+
+do_execsql_test 1.7.11.4 {
+  SELECT first_value(b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {10   10   10   10   10   10   10   10   10   10   10   10   10   10   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5
+  5   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6
+  6   6   6   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7
+  7   7   7   7   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8
+  8   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9
+  9   9   9   9}
+
+do_execsql_test 1.7.11.5 {
+  SELECT first_value(b) OVER ( ORDER BY b%10,a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90}
+
+do_execsql_test 1.7.11.6 {
+  SELECT first_value(b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t2
+} {96   38   68   62   46   6   46   78   54   8   84   16   16   86   74   24
+  12   32   56   22   90   28   56   40   56   16   36   98   76   4   94
+  42   30   78   2   80   84   72   58   96   98   74   12   8   20   22   88
+  34   8   34   90   96   60   44   2   74   70   26   26   80   90   36   58
+  72   72   66   64   12   14   62   36   34   36   58   52   30   50   84
+  10   84   44   58   30   38   34   82   89   81   59   39   91   99   97
+  27   97   67   29   93   77   23   93   65   35   47   7   61   91   85
+  85   43   59   3   91   55   15   89   25   47   1   43   75   89   81   33
+  29   53   63   87   37   41   9   61   73   95   65   13   1   21   65   35
+  5   73   11   51   87   41   31   31   15   95   73   79   11   49   59
+  55   75   77   7   85   57   29   59   19   39   47   47   9   33   93   75
+  81   9   23   37   13   91   91   33   15   99   3   95   69   33   21   39
+  83   27   17   7}
+
+do_execsql_test 1.7.12.1 {
+  SELECT lead(b,b) OVER (ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t2
+} {96   9   11   89   32   53   91   30   51   56   54   73   22   59   75
+  74   78   8   16   65   15   8   31   87   90   12   32   96   74   76   37
+  85   90   15   35   2   60   36   75   9   51   47   63   51   90   26   42
+  26   8   76   80   90   37   87   56   79   5   87   8   2   39   73   64
+  36   90   72   78   36   73   51   33   20   41   2   26   37   33   8   14
+  33   81   55   1   9   12   39   64   87   72   34   82   21   34   99   62
+  74   41   69   22   75   27   58   8   79   77   26   26   55   {}   29
+  30   7   {}   66   55   2   34   64   {}   33   {}   44   84   {}   {}   95
+  85   19   {}   83   {}   91   {}   {}   9   50   91   33   34   {}   {}
+  84   {}   7   9   {}   {}   {}   44   {}   {}   {}   {}   91   84   {}   95
+  95   52   {}   {}   {}   {}   {}   21   {}   {}   {}   58   {}   {}   {}
+  {}   {}   {}   {}   83   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}}
+
+do_execsql_test 1.7.12.2 {
+  SELECT lead(b,b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   81   {}   {}   {}   21   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   62   {}   {}   {}   12   {}   {}   {}   72
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   53   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   34   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   95   {}   {}   {}   {}   {}   {}   85   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   56   {}   36   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   57   {}   {}   {}   {}   {}   7   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   8   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.7.12.3 {
+  SELECT lead(b,b) OVER ( ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {1   2   3   3   5   6   7   8   8   9   9   10   11   12   12   13   13
+  14   15   16   16   17   19   20   21   22   23   24   25   26   27   27
+  28   29   30   31   32   33   33   33   34   34   35   36   36   36   37
+  38   39   39   40   41   42   43   43   44   46   47   47   47   49   50
+  52   53   54   55   56   56   57   58   58   58   59   59   59   60   61
+  62   62   64   65   65   67   69   70   72   72   73   74   74   75   75
+  75   77   78   80   81   81   83   84   84   85   85   85   87   88   89
+  89   89   90   90   91   91   91   93   93   94   95   95   96   97   97
+  98   99   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.7.12.4 {
+  SELECT lead(b,b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {80   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   1
+  11   81   81   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   12   12   72   82   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   13   23   73   73   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   34   84   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   35   85   85   95   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   36   86   96   96   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   37   47
+  47   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   58   58   68   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   39   49   59   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.7.12.5 {
+  SELECT lead(b,b) OVER ( ORDER BY b%10,a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {34   72   91   74   21   55   23   94   84   95   2   13   61   22   55
+  55   94   85   75   81   65   73   74   21   72   12   94   33   63   73
+  72   96   36   76   3   25   62   3   73   34   12   46   43   93   72   16
+  86   63   15   65   36   77   24   57   25   53   95   34   95   16   97
+  74   97   67   25   98   44   34   65   54   5   68   96   28   47   95
+  34   39   8   38   6   46   96   28   47   95   56   39   99   97   76   8
+  26   9   79   27   95   16   29   {}   58   58   77   85   56   {}   98
+  29   {}   19   96   {}   {}   78   56   98   36   97   {}   89   89   29
+  47   78   {}   {}   {}   38   68   58   {}   58   38   {}   98   {}   {}
+  {}   39   57   9   {}   79   {}   {}   7   {}   {}   {}   9   29   38   78
+  {}   {}   {}   8   39   {}   {}   {}   {}   59   {}   99   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.7.12.6 {
+  SELECT lead(b,b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.7.13.1 {
+  SELECT lag(b,b) OVER (ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   38   {}   {}   {}   {}
+  {}   {}   {}   6   {}   {}   {}   {}   {}   81   46   6   {}   {}   {}   {}
+  23   {}   {}   {}   {}   {}   27   {}   {}   {}   35   6   {}   12   {}
+  23   {}   {}   61   84   {}   93   39   47   {}   54   46   96   56   {}
+  16   {}   {}   {}   {}   89   {}   16   43   {}   85   56   29   99   53
+  {}   59   {}   {}   91   59   53   84   99   {}   93   63   47   {}   {}
+  98   33   67   35   75   1   23   13   55   27   75   98   35   73   63   2
+  21   27   13   24   86   23   84   31   20   94   61   65   75   23   36
+  94   55   90   41   77   96   56   29   40   12   89   63   11   5   73
+  79   1   16   28   31   73   5   39   53   63   41   11   40   2   13   33
+  9   29   90   47   72   9   73   30   44   33   74   93   29   74   42   34
+  63   41   34   96   47   77   1   36   74   72   14   36   26   77   9   72
+  64   8   91   31   52   30}
+
+do_execsql_test 1.7.13.2 {
+  SELECT lag(b,b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   61   {}   81   {}   {}   {}   {}
+  1   {}   {}   {}   {}   {}   {}   {}   {}   {}   22   {}   {}   {}   12
+  {}   {}   62   {}   {}   {}   {}   {}   {}   {}   23   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   43   {}   23   {}   {}   {}   {}   {}
+  {}   54   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   75   {}
+  {}   {}   {}   {}   {}   55   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   47   {}   {}   {}   {}
+  {}   27   7   {}   {}   {}   {}   {}   {}   {}   {}   {}   68   {}   8   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   89   {}   {}
+  {}   {}   {}   {}   {}   29   9   {}   {}   {}}
+
+do_execsql_test 1.7.13.3 {
+  SELECT lag(b,b) OVER ( ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {{}   1   1   1   1   2   2   2   2   2   2   3   3   3   4   4   5   6   6
+  6   7   7   7   7   7   8   8   8   8   8   8   9   9   9   9   9   9   9
+  9   9   9   10   10   10   10   11   11   11   11   11   12   12   12   12
+  13   13   13   13   13   14   15   15   15   15   16   16   16   16   16
+  17   19   20   20   21   21   21   21   22   22   22   22   23   23   23
+  23   23   24   23   24   24   25   26   26   26   26   26   26   26   26
+  26   26   26   27   27   27   27   28   29   29   29   29   30   30   30
+  30   30   30   31   31   31   31   31   32   32   32   32   32   32   31
+  32   33   33   33   33   33   33   34   34   34   34   34   34   34   34
+  35   35   35   35   35   36   36   36   36   36   36   36   37   37   37
+  38   38   38   38   38   38   39   39   39   39   40   40   41   41   42
+  43   42   43   43   43   43   44   44   44   46   46   46   47   47   47
+  47   47}
+
+do_execsql_test 1.7.13.4 {
+  SELECT lag(b,b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  1   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.7.13.5 {
+  SELECT lag(b,b) OVER ( ORDER BY b%10,a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   61   80   81   {}   {}   {}   {}
+  1   {}   {}   {}   30   {}   21   90   61   {}   22   {}   11   41   12
+  {}   {}   62   {}   {}   {}   {}   31   {}   50   23   30   21   90   {}
+  {}   62   {}   {}   81   {}   22   43   62   23   32   {}   91   {}   90
+  93   54   {}   {}   90   72   12   22   90   81   83   23   80   20   72
+  43   51   33   80   90   2   34   54   1   20   62   12   13   75   44   30
+  93   91   1   21   55   61   61   13   85   3   65   65   91   73   33   93
+  55   84   62   31   11   65   35   85   33   55   15   12   75   22   3
+  73   65   36   85   43   95   43   13   47   44   65   65   96   36   27
+  7   46   34   94   47   36   73   34   35   73   68   24   8   75   85   75
+  66   34   95   36   84   77   46   34   84   47   89   65   36   16   38
+  76   58   57   29   9   44   56   17}
+
+do_execsql_test 1.7.13.6 {
+  SELECT lag(b,b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.7.14.1 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t2
+} {89   89.81   89.81.96   89.81.96.59   89.81.96.59.38   89.81.96.59.38.68
+  89.81.96.59.38.68.39   89.81.96.59.38.68.39.62   89.81.96.59.38.68.39.62.91
+  89.81.96.59.38.68.39.62.91.46   89.81.96.59.38.68.39.62.91.46.6
+  89.81.96.59.38.68.39.62.91.46.6.99   89.81.96.59.38.68.39.62.91.46.6.99.97
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75
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+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7}
+
+do_execsql_test 1.7.14.2 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t2
+} {90   90.40   90.40.30   90.40.30.80   90.40.30.80.20   90.40.30.80.20.90
+  90.40.30.80.20.90.60   90.40.30.80.20.90.60.70   90.40.30.80.20.90.60.70.80
+  90.40.30.80.20.90.60.70.80.90   90.40.30.80.20.90.60.70.80.90.30
+  90.40.30.80.20.90.60.70.80.90.30.50
+  90.40.30.80.20.90.60.70.80.90.30.50.10
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30   81   81.91   81.91.61
+  81.91.61.91   81.91.61.91.91   81.91.61.91.91.1   81.91.61.91.91.1.81
+  81.91.61.91.91.1.81.41   81.91.61.91.91.1.81.41.61
+  81.91.61.91.91.1.81.41.61.1   81.91.61.91.91.1.81.41.61.1.21
+  81.91.61.91.91.1.81.41.61.1.21.11   81.91.61.91.91.1.81.41.61.1.21.11.51
+  81.91.61.91.91.1.81.41.61.1.21.11.51.41
+  81.91.61.91.91.1.81.41.61.1.21.11.51.41.31
+  81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31
+  81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11
+  81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81
+  81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91
+  81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91
+  81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21   62   62.12
+  62.12.32   62.12.32.22   62.12.32.22.42   62.12.32.22.42.2
+  62.12.32.22.42.2.72   62.12.32.22.42.2.72.12   62.12.32.22.42.2.72.12.22
+  62.12.32.22.42.2.72.12.22.2   62.12.32.22.42.2.72.12.22.2.72
+  62.12.32.22.42.2.72.12.22.2.72.72   62.12.32.22.42.2.72.12.22.2.72.72.12
+  62.12.32.22.42.2.72.12.22.2.72.72.12.62
+  62.12.32.22.42.2.72.12.22.2.72.72.12.62.52
+  62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82   93   93.23   93.23.93
+  93.23.93.43   93.23.93.43.3   93.23.93.43.3.43   93.23.93.43.3.43.33
+  93.23.93.43.3.43.33.53   93.23.93.43.3.43.33.53.63
+  93.23.93.43.3.43.33.53.63.73   93.23.93.43.3.43.33.53.63.73.13
+  93.23.93.43.3.43.33.53.63.73.13.73   93.23.93.43.3.43.33.53.63.73.13.73.73
+  93.23.93.43.3.43.33.53.63.73.13.73.73.33
+  93.23.93.43.3.43.33.53.63.73.13.73.73.33.93
+  93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23
+  93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13
+  93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33
+  93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3
+  93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33
+  93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83   54   54.84
+  54.84.74   54.84.74.24   54.84.74.24.4   54.84.74.24.4.94
+  54.84.74.24.4.94.84   54.84.74.24.4.94.84.74   54.84.74.24.4.94.84.74.34
+  54.84.74.24.4.94.84.74.34.34   54.84.74.24.4.94.84.74.34.34.44
+  54.84.74.24.4.94.84.74.34.34.44.74   54.84.74.24.4.94.84.74.34.34.44.74.64
+  54.84.74.24.4.94.84.74.34.34.44.74.64.14
+  54.84.74.24.4.94.84.74.34.34.44.74.64.14.34
+  54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84
+  54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84
+  54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44
+  54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34   65   65.35
+  65.35.85   65.35.85.85   65.35.85.85.55   65.35.85.85.55.15
+  65.35.85.85.55.15.25   65.35.85.85.55.15.25.75   65.35.85.85.55.15.25.75.95
+  65.35.85.85.55.15.25.75.95.65   65.35.85.85.55.15.25.75.95.65.65
+  65.35.85.85.55.15.25.75.95.65.65.35   65.35.85.85.55.15.25.75.95.65.65.35.5
+  65.35.85.85.55.15.25.75.95.65.65.35.5.15
+  65.35.85.85.55.15.25.75.95.65.65.35.5.15.95
+  65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55
+  65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75
+  65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85
+  65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75
+  65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15
+  65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95   96   96.46
+  96.46.6   96.46.6.46   96.46.6.46.16   96.46.6.46.16.16
+  96.46.6.46.16.16.86   96.46.6.46.16.16.86.56   96.46.6.46.16.16.86.56.56
+  96.46.6.46.16.16.86.56.56.56   96.46.6.46.16.16.86.56.56.56.16
+  96.46.6.46.16.16.86.56.56.56.16.36   96.46.6.46.16.16.86.56.56.56.16.36.76
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96.96
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36   97   97.27
+  97.27.97   97.27.97.67   97.27.97.67.77   97.27.97.67.77.47
+  97.27.97.67.77.47.7   97.27.97.67.77.47.7.47   97.27.97.67.77.47.7.47.87
+  97.27.97.67.77.47.7.47.87.37   97.27.97.67.77.47.7.47.87.37.87
+  97.27.97.67.77.47.7.47.87.37.87.77   97.27.97.67.77.47.7.47.87.37.87.77.7
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7   38   38.68
+  38.68.78   38.68.78.8   38.68.78.8.28   38.68.78.8.28.98
+  38.68.78.8.28.98.78   38.68.78.8.28.98.78.58   38.68.78.8.28.98.78.58.98
+  38.68.78.8.28.98.78.58.98.8   38.68.78.8.28.98.78.58.98.8.88
+  38.68.78.8.28.98.78.58.98.8.88.8   38.68.78.8.28.98.78.58.98.8.88.8.58
+  38.68.78.8.28.98.78.58.98.8.88.8.58.58
+  38.68.78.8.28.98.78.58.98.8.88.8.58.58.58
+  38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38   89   89.59   89.59.39
+  89.59.39.99   89.59.39.99.29   89.59.39.99.29.59   89.59.39.99.29.59.89
+  89.59.39.99.29.59.89.89   89.59.39.99.29.59.89.89.29
+  89.59.39.99.29.59.89.89.29.9   89.59.39.99.29.59.89.89.29.9.79
+  89.59.39.99.29.59.89.89.29.9.79.49   89.59.39.99.29.59.89.89.29.9.79.49.59
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39}
+
+do_execsql_test 1.7.14.3 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {1   1.1   1.1.2   1.1.2.2   1.1.2.2.3   1.1.2.2.3.3   1.1.2.2.3.3.4
+  1.1.2.2.3.3.4.5   1.1.2.2.3.3.4.5.6   1.1.2.2.3.3.4.5.6.7
+  1.1.2.2.3.3.4.5.6.7.7   1.1.2.2.3.3.4.5.6.7.7.7   1.1.2.2.3.3.4.5.6.7.7.7.8
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8   1.1.2.2.3.3.4.5.6.7.7.7.8.8.8
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9   1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9
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+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10
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+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99}
+
+do_execsql_test 1.7.14.4 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {10   10.20   10.20.30   10.20.30.30   10.20.30.30.30   10.20.30.30.30.40
+  10.20.30.30.30.40.50   10.20.30.30.30.40.50.60   10.20.30.30.30.40.50.60.70
+  10.20.30.30.30.40.50.60.70.80   10.20.30.30.30.40.50.60.70.80.80
+  10.20.30.30.30.40.50.60.70.80.80.90
+  10.20.30.30.30.40.50.60.70.80.80.90.90
+  10.20.30.30.30.40.50.60.70.80.80.90.90.90   1   1.1   1.1.11   1.1.11.11
+  1.1.11.11.21   1.1.11.11.21.21   1.1.11.11.21.21.31   1.1.11.11.21.21.31.31
+  1.1.11.11.21.21.31.31.41   1.1.11.11.21.21.31.31.41.41
+  1.1.11.11.21.21.31.31.41.41.51   1.1.11.11.21.21.31.31.41.41.51.61
+  1.1.11.11.21.21.31.31.41.41.51.61.61
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81.81
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91   2   2.2
+  2.2.12   2.2.12.12   2.2.12.12.12   2.2.12.12.12.22   2.2.12.12.12.22.22
+  2.2.12.12.12.22.22.32   2.2.12.12.12.22.22.32.42
+  2.2.12.12.12.22.22.32.42.52   2.2.12.12.12.22.22.32.42.52.62
+  2.2.12.12.12.22.22.32.42.52.62.62   2.2.12.12.12.22.22.32.42.52.62.62.72
+  2.2.12.12.12.22.22.32.42.52.62.62.72.72
+  2.2.12.12.12.22.22.32.42.52.62.62.72.72.72
+  2.2.12.12.12.22.22.32.42.52.62.62.72.72.72.82   3   3.3   3.3.13
+  3.3.13.13   3.3.13.13.23   3.3.13.13.23.23   3.3.13.13.23.23.33
+  3.3.13.13.23.23.33.33   3.3.13.13.23.23.33.33.33
+  3.3.13.13.23.23.33.33.33.33   3.3.13.13.23.23.33.33.33.33.43
+  3.3.13.13.23.23.33.33.33.33.43.43   3.3.13.13.23.23.33.33.33.33.43.43.53
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63.73
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63.73.73
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63.73.73.73
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93   4   4.14
+  4.14.24   4.14.24.34   4.14.24.34.34   4.14.24.34.34.34
+  4.14.24.34.34.34.34   4.14.24.34.34.34.34.44   4.14.24.34.34.34.34.44.44
+  4.14.24.34.34.34.34.44.44.54   4.14.24.34.34.34.34.44.44.54.64
+  4.14.24.34.34.34.34.44.44.54.64.74   4.14.24.34.34.34.34.44.44.54.64.74.74
+  4.14.24.34.34.34.34.44.44.54.64.74.74.74
+  4.14.24.34.34.34.34.44.44.54.64.74.74.74.84
+  4.14.24.34.34.34.34.44.44.54.64.74.74.74.84.84
+  4.14.24.34.34.34.34.44.44.54.64.74.74.74.84.84.84
+  4.14.24.34.34.34.34.44.44.54.64.74.74.74.84.84.84.84
+  4.14.24.34.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94   5   5.15
+  5.15.15   5.15.15.15   5.15.15.15.25   5.15.15.15.25.35
+  5.15.15.15.25.35.35   5.15.15.15.25.35.35.55   5.15.15.15.25.35.35.55.55
+  5.15.15.15.25.35.35.55.55.65   5.15.15.15.25.35.35.55.55.65.65
+  5.15.15.15.25.35.35.55.55.65.65.65   5.15.15.15.25.35.35.55.55.65.65.65.75
+  5.15.15.15.25.35.35.55.55.65.65.65.75.75
+  5.15.15.15.25.35.35.55.55.65.65.65.75.75.75
+  5.15.15.15.25.35.35.55.55.65.65.65.75.75.75.85
+  5.15.15.15.25.35.35.55.55.65.65.65.75.75.75.85.85
+  5.15.15.15.25.35.35.55.55.65.65.65.75.75.75.85.85.85
+  5.15.15.15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95
+  5.15.15.15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95
+  5.15.15.15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95   6   6.16
+  6.16.16   6.16.16.16   6.16.16.16.26   6.16.16.16.26.26
+  6.16.16.16.26.26.36   6.16.16.16.26.26.36.36   6.16.16.16.26.26.36.36.36
+  6.16.16.16.26.26.36.36.36.36   6.16.16.16.26.26.36.36.36.36.46
+  6.16.16.16.26.26.36.36.36.36.46.46   6.16.16.16.26.26.36.36.36.36.46.46.56
+  6.16.16.16.26.26.36.36.36.36.46.46.56.56
+  6.16.16.16.26.26.36.36.36.36.46.46.56.56.56
+  6.16.16.16.26.26.36.36.36.36.46.46.56.56.56.66
+  6.16.16.16.26.26.36.36.36.36.46.46.56.56.56.66.76
+  6.16.16.16.26.26.36.36.36.36.46.46.56.56.56.66.76.86
+  6.16.16.16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96
+  6.16.16.16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96
+  6.16.16.16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96   7   7.7
+  7.7.7   7.7.7.17   7.7.7.17.27   7.7.7.17.27.27   7.7.7.17.27.27.37
+  7.7.7.17.27.27.37.37   7.7.7.17.27.27.37.37.47   7.7.7.17.27.27.37.37.47.47
+  7.7.7.17.27.27.37.37.47.47.47   7.7.7.17.27.27.37.37.47.47.47.47
+  7.7.7.17.27.27.37.37.47.47.47.47.57
+  7.7.7.17.27.27.37.37.47.47.47.47.57.67
+  7.7.7.17.27.27.37.37.47.47.47.47.57.67.77
+  7.7.7.17.27.27.37.37.47.47.47.47.57.67.77.77
+  7.7.7.17.27.27.37.37.47.47.47.47.57.67.77.77.87
+  7.7.7.17.27.27.37.37.47.47.47.47.57.67.77.77.87.87
+  7.7.7.17.27.27.37.37.47.47.47.47.57.67.77.77.87.87.97
+  7.7.7.17.27.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97   8   8.8   8.8.8
+  8.8.8.28   8.8.8.28.38   8.8.8.28.38.38   8.8.8.28.38.38.58
+  8.8.8.28.38.38.58.58   8.8.8.28.38.38.58.58.58   8.8.8.28.38.38.58.58.58.58
+  8.8.8.28.38.38.58.58.58.58.68   8.8.8.28.38.38.58.58.58.58.68.78
+  8.8.8.28.38.38.58.58.58.58.68.78.78
+  8.8.8.28.38.38.58.58.58.58.68.78.78.88
+  8.8.8.28.38.38.58.58.58.58.68.78.78.88.98
+  8.8.8.28.38.38.58.58.58.58.68.78.78.88.98.98   9   9.9   9.9.9   9.9.9.19
+  9.9.9.19.29   9.9.9.19.29.29   9.9.9.19.29.29.29   9.9.9.19.29.29.29.39
+  9.9.9.19.29.29.29.39.39   9.9.9.19.29.29.29.39.39.39
+  9.9.9.19.29.29.29.39.39.39.49   9.9.9.19.29.29.29.39.39.39.49.59
+  9.9.9.19.29.29.29.39.39.39.49.59.59
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99}
+
+do_execsql_test 1.7.14.5 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( ORDER BY b%10,a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t2
+} {90   90.40   90.40.30   90.40.30.80   90.40.30.80.20   90.40.30.80.20.90
+  90.40.30.80.20.90.60   90.40.30.80.20.90.60.70   90.40.30.80.20.90.60.70.80
+  90.40.30.80.20.90.60.70.80.90   90.40.30.80.20.90.60.70.80.90.30
+  90.40.30.80.20.90.60.70.80.90.30.50
+  90.40.30.80.20.90.60.70.80.90.30.50.10
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93
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+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39}
+
+do_execsql_test 1.7.14.6 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t2
+} {96   38   68   62   46   6   46   78   54   8   84   16   16   86   74   24
+  12   32   56   22   90   28   56   40   56   16   36   98   76   4   94
+  42   30   78   2   80   84   72   58   96   98   74   12   8   20   22   88
+  34   8   34   90   96   60   44   2   74   70   26   26   80   90   36   58
+  72   72   66   64   12   14   62   36   34   36   58   52   30   50   84
+  10   84   44   58   30   38   34   82   89   81   59   39   91   99   97
+  27   97   67   29   93   77   23   93   65   35   47   7   61   91   85
+  85   43   59   3   91   55   15   89   25   47   1   43   75   89   81   33
+  29   53   63   87   37   41   9   61   73   95   65   13   1   21   65   35
+  5   73   11   51   87   41   31   31   15   95   73   79   11   49   59
+  55   75   77   7   85   57   29   59   19   39   47   47   9   33   93   75
+  81   9   23   37   13   91   91   33   15   99   3   95   69   33   21   39
+  83   27   17   7}
+
+do_execsql_test 1.7.14.7 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (win1 ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) 
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a)
+    ORDER BY 1
+} {1   1   10   11   11   12   12   12   13   13   14   15   15   15   16   16
+  16   17   19   2   2   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   3   3   30   30   30   31   31   32   33   33
+  33   33   34   34   34   34   35   35   36   36   36   36   37   37   38
+  38   39   39   39   4   40   41   41   42   43   43   44   44   46   46
+  47   47   47   47   49   5   50   51   52   53   54   55   55   56   56
+  56   57   58   58   58   58   59   59   59   59   6   60   61   61   62
+  62   63   64   65   65   65   66   67   68   69   7   7   7   70   72   72
+  72   73   73   73   74   74   74   75   75   75   76   77   77   78   78
+  79   8   8   8   80   80   81   81   81   82   83   84   84   84   84   85
+  85   85   86   87   87   88   89   89   89   9   9   9   90   90   90   91
+  91   91   91   91   93   93   93   94   95   95   95   96   96   96   97
+  97   98   98   99   99}
+
+do_execsql_test 1.7.14.8 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (win1 ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) 
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a ORDER BY b%10)
+    ORDER BY 1
+} {1   1   10   11   11   12   12   12   13   13   14   15   15   15   16   16
+  16   17   19   2   2   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   3   3   30   30   30   31   31   32   33   33
+  33   33   34   34   34   34   35   35   36   36   36   36   37   37   38
+  38   39   39   39   4   40   41   41   42   43   43   44   44   46   46
+  47   47   47   47   49   5   50   51   52   53   54   55   55   56   56
+  56   57   58   58   58   58   59   59   59   59   6   60   61   61   62
+  62   63   64   65   65   65   66   67   68   69   7   7   7   70   72   72
+  72   73   73   73   74   74   74   75   75   75   76   77   77   78   78
+  79   8   8   8   80   80   81   81   81   82   83   84   84   84   84   85
+  85   85   86   87   87   88   89   89   89   9   9   9   90   90   90   91
+  91   91   91   91   93   93   93   94   95   95   95   96   96   96   97
+  97   98   98   99   99}
+
+do_execsql_test 1.7.14.9 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER win2
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a ORDER BY b%10),
+           win2 AS (win1 ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+    ORDER BY 1
+} {1   1   10   11   11   12   12   12   13   13   14   15   15   15   16   16
+  16   17   19   2   2   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   3   3   30   30   30   31   31   32   33   33
+  33   33   34   34   34   34   35   35   36   36   36   36   37   37   38
+  38   39   39   39   4   40   41   41   42   43   43   44   44   46   46
+  47   47   47   47   49   5   50   51   52   53   54   55   55   56   56
+  56   57   58   58   58   58   59   59   59   59   6   60   61   61   62
+  62   63   64   65   65   65   66   67   68   69   7   7   7   70   72   72
+  72   73   73   73   74   74   74   75   75   75   76   77   77   78   78
+  79   8   8   8   80   80   81   81   81   82   83   84   84   84   84   85
+  85   85   86   87   87   88   89   89   89   9   9   9   90   90   90   91
+  91   91   91   91   93   93   93   94   95   95   95   96   96   96   97
+  97   98   98   99   99}
+
+do_execsql_test 1.7.15.1 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE a%2=0) OVER win FROM t2
+    WINDOW win AS (ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+} {1 89   2 89   3 89.96   4 89.96   5 89.96.38   6 89.96.38   7 89.96.38.39
+  8 89.96.38.39   9 89.96.38.39.91   10 89.96.38.39.91   11 89.96.38.39.91.6
+  12 89.96.38.39.91.6   13 89.96.38.39.91.6.97   14 89.96.38.39.91.6.97
+  15 89.96.38.39.91.6.97.46   16 89.96.38.39.91.6.97.46
+  17 89.96.38.39.91.6.97.46.54   18 89.96.38.39.91.6.97.46.54
+  19 89.96.38.39.91.6.97.46.54.8   20 89.96.38.39.91.6.97.46.54.8
+  21 89.96.38.39.91.6.97.46.54.8.29   22 89.96.38.39.91.6.97.46.54.8.29
+  23 89.96.38.39.91.6.97.46.54.8.29.84   24 89.96.38.39.91.6.97.46.54.8.29.84
+  25 89.96.38.39.91.6.97.46.54.8.29.84.23
+  26 89.96.38.39.91.6.97.46.54.8.29.84.23
+  27 89.96.38.39.91.6.97.46.54.8.29.84.23.16
+  28 89.96.38.39.91.6.97.46.54.8.29.84.23.16
+  29 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65
+  30 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65
+  31 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47
+  32 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47
+  33 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86
+  34 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86
+  35 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61
+  36 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61
+  37 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85
+  38 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85
+  39 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85
+  40 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85
+  41 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59
+  42 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59
+  43 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32
+  44 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32
+  45 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3
+  46 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3
+  47 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22
+  48 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22
+  49 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55
+  50 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55
+  51 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28
+  52 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28
+  53 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25
+  54 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25
+  55 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1
+  56 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1
+  57 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40
+  58 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40
+  59 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56
+  60 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56
+  61 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75
+  62 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75
+  63 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89
+  64 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89
+  65 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76
+  66 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76
+  67 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4
+  68 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4
+  69 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42
+  70 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42
+  71 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78
+  72 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78
+  73 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29
+  74 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29
+  75 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63
+  76 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63
+  77 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87
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+  189 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82
+  190 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7}
+
+do_execsql_test 1.7.15.2 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE 0=1) OVER win FROM t2
+    WINDOW win AS (ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+} {1 {}   2 {}   3 {}   4 {}   5 {}   6 {}   7 {}   8 {}   9 {}   10 {}
+  11 {}   12 {}   13 {}   14 {}   15 {}   16 {}   17 {}   18 {}   19 {}
+  20 {}   21 {}   22 {}   23 {}   24 {}   25 {}   26 {}   27 {}   28 {}
+  29 {}   30 {}   31 {}   32 {}   33 {}   34 {}   35 {}   36 {}   37 {}
+  38 {}   39 {}   40 {}   41 {}   42 {}   43 {}   44 {}   45 {}   46 {}
+  47 {}   48 {}   49 {}   50 {}   51 {}   52 {}   53 {}   54 {}   55 {}
+  56 {}   57 {}   58 {}   59 {}   60 {}   61 {}   62 {}   63 {}   64 {}
+  65 {}   66 {}   67 {}   68 {}   69 {}   70 {}   71 {}   72 {}   73 {}
+  74 {}   75 {}   76 {}   77 {}   78 {}   79 {}   80 {}   81 {}   82 {}
+  83 {}   84 {}   85 {}   86 {}   87 {}   88 {}   89 {}   90 {}   91 {}
+  92 {}   93 {}   94 {}   95 {}   96 {}   97 {}   98 {}   99 {}   100 {}
+  101 {}   102 {}   103 {}   104 {}   105 {}   106 {}   107 {}   108 {}
+  109 {}   110 {}   111 {}   112 {}   113 {}   114 {}   115 {}   116 {}
+  117 {}   118 {}   119 {}   120 {}   121 {}   122 {}   123 {}   124 {}
+  125 {}   126 {}   127 {}   128 {}   129 {}   130 {}   131 {}   132 {}
+  133 {}   134 {}   135 {}   136 {}   137 {}   138 {}   139 {}   140 {}
+  141 {}   142 {}   143 {}   144 {}   145 {}   146 {}   147 {}   148 {}
+  149 {}   150 {}   151 {}   152 {}   153 {}   154 {}   155 {}   156 {}
+  157 {}   158 {}   159 {}   160 {}   161 {}   162 {}   163 {}   164 {}
+  165 {}   166 {}   167 {}   168 {}   169 {}   170 {}   171 {}   172 {}
+  173 {}   174 {}   175 {}   176 {}   177 {}   178 {}   179 {}   180 {}
+  181 {}   182 {}   183 {}   184 {}   185 {}   186 {}   187 {}   188 {}
+  189 {}   190 {}   191 {}}
+
+do_execsql_test 1.7.15.3 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE 1=0) OVER win FROM t2
+    WINDOW win AS (PARTITION BY (a%10) ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+} {1 {}   2 {}   3 {}   4 {}   5 {}   6 {}   7 {}   8 {}   9 {}   10 {}
+  11 {}   12 {}   13 {}   14 {}   15 {}   16 {}   17 {}   18 {}   19 {}
+  20 {}   1 {}   2 {}   3 {}   4 {}   5 {}   6 {}   7 {}   8 {}   9 {}
+  10 {}   11 {}   12 {}   13 {}   14 {}   15 {}   16 {}   17 {}   18 {}
+  19 {}   1 {}   2 {}   3 {}   4 {}   5 {}   6 {}   7 {}   8 {}   9 {}
+  10 {}   11 {}   12 {}   13 {}   14 {}   15 {}   16 {}   17 {}   18 {}
+  19 {}   1 {}   2 {}   3 {}   4 {}   5 {}   6 {}   7 {}   8 {}   9 {}
+  10 {}   11 {}   12 {}   13 {}   14 {}   15 {}   16 {}   17 {}   18 {}
+  19 {}   1 {}   2 {}   3 {}   4 {}   5 {}   6 {}   7 {}   8 {}   9 {}
+  10 {}   11 {}   12 {}   13 {}   14 {}   15 {}   16 {}   17 {}   18 {}
+  19 {}   1 {}   2 {}   3 {}   4 {}   5 {}   6 {}   7 {}   8 {}   9 {}
+  10 {}   11 {}   12 {}   13 {}   14 {}   15 {}   16 {}   17 {}   18 {}
+  19 {}   1 {}   2 {}   3 {}   4 {}   5 {}   6 {}   7 {}   8 {}   9 {}
+  10 {}   11 {}   12 {}   13 {}   14 {}   15 {}   16 {}   17 {}   18 {}
+  19 {}   1 {}   2 {}   3 {}   4 {}   5 {}   6 {}   7 {}   8 {}   9 {}
+  10 {}   11 {}   12 {}   13 {}   14 {}   15 {}   16 {}   17 {}   18 {}
+  19 {}   1 {}   2 {}   3 {}   4 {}   5 {}   6 {}   7 {}   8 {}   9 {}
+  10 {}   11 {}   12 {}   13 {}   14 {}   15 {}   16 {}   17 {}   18 {}
+  19 {}   1 {}   2 {}   3 {}   4 {}   5 {}   6 {}   7 {}   8 {}   9 {}
+  10 {}   11 {}   12 {}   13 {}   14 {}   15 {}   16 {}   17 {}   18 {}
+  19 {}}
+
+do_execsql_test 1.7.15.4 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE a%2=0) OVER win FROM t2
+    WINDOW win AS (PARTITION BY (a%10) ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+} {1 89   2 89.6   3 89.6.29   4 89.6.29.47   5 89.6.29.47.59
+  6 89.6.29.47.59.28   7 89.6.29.47.59.28.75   8 89.6.29.47.59.28.75.78
+  9 89.6.29.47.59.28.75.78.72   10 89.6.29.47.59.28.75.78.72.98
+  11 89.6.29.47.59.28.75.78.72.98.87   12 89.6.29.47.59.28.75.78.72.98.87.73
+  13 89.6.29.47.59.28.75.78.72.98.87.73.96
+  14 89.6.29.47.59.28.75.78.72.98.87.73.96.74
+  15 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90
+  16 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75
+  17 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91
+  18 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69
+  19 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7   1 {}   2 {}
+  3 {}   4 {}   5 {}   6 {}   7 {}   8 {}   9 {}   10 {}   11 {}   12 {}
+  13 {}   14 {}   15 {}   16 {}   17 {}   18 {}   19 {}   1 96   2 96.97
+  3 96.97.84   4 96.97.84.86   5 96.97.84.86.32   6 96.97.84.86.32.25
+  7 96.97.84.86.32.25.89   8 96.97.84.86.32.25.89.29
+  9 96.97.84.86.32.25.89.29.9   10 96.97.84.86.32.25.89.29.9.21
+  11 96.97.84.86.32.25.89.29.9.21.12   12 96.97.84.86.32.25.89.29.9.21.12.88
+  13 96.97.84.86.32.25.89.29.9.21.12.88.55
+  14 96.97.84.86.32.25.89.29.9.21.12.88.55.70
+  15 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58
+  16 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81
+  17 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91
+  18 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58   1 {}   2 {}
+  3 {}   4 {}   5 {}   6 {}   7 {}   8 {}   9 {}   10 {}   11 {}   12 {}
+  13 {}   14 {}   15 {}   16 {}   17 {}   18 {}   19 {}   1 38   2 38.46
+  3 38.46.23   4 38.46.23.61   5 38.46.23.61.3   6 38.46.23.61.3.1
+  7 38.46.23.61.3.1.76   8 38.46.23.61.3.1.76.63   9 38.46.23.61.3.1.76.63.73
+  10 38.46.23.61.3.1.76.63.73.65   11 38.46.23.61.3.1.76.63.73.65.20
+  12 38.46.23.61.3.1.76.63.73.65.20.8
+  13 38.46.23.61.3.1.76.63.73.65.20.8.77
+  14 38.46.23.61.3.1.76.63.73.65.20.8.77.19
+  15 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9
+  16 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23
+  17 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15
+  18 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38   1 {}   2 {}
+  3 {}   4 {}   5 {}   6 {}   7 {}   8 {}   9 {}   10 {}   11 {}   12 {}
+  13 {}   14 {}   15 {}   16 {}   17 {}   18 {}   19 {}   1 39   2 39.54
+  3 39.54.16   4 39.54.16.85   5 39.54.16.85.22   6 39.54.16.85.22.40
+  7 39.54.16.85.22.40.4   8 39.54.16.85.22.40.4.87
+  9 39.54.16.85.22.40.4.87.65   10 39.54.16.85.22.40.4.87.65.5
+  11 39.54.16.85.22.40.4.87.65.5.31   12 39.54.16.85.22.40.4.87.65.5.31.49
+  13 39.54.16.85.22.40.4.87.65.5.31.49.2
+  14 39.54.16.85.22.40.4.87.65.5.31.49.2.26
+  15 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72
+  16 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13
+  17 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36
+  18 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83   1 {}   2 {}
+  3 {}   4 {}   5 {}   6 {}   7 {}   8 {}   9 {}   10 {}   11 {}   12 {}
+  13 {}   14 {}   15 {}   16 {}   17 {}   18 {}   19 {}   1 91   2 91.8
+  3 91.8.65   4 91.8.65.85   5 91.8.65.85.55   6 91.8.65.85.55.56
+  7 91.8.65.85.55.56.42   8 91.8.65.85.55.56.42.80
+  9 91.8.65.85.55.56.42.80.58   10 91.8.65.85.55.56.42.80.58.11
+  11 91.8.65.85.55.56.42.80.58.11.95   12 91.8.65.85.55.56.42.80.58.11.95.90
+  13 91.8.65.85.55.56.42.80.58.11.95.90.85
+  14 91.8.65.85.55.56.42.80.58.11.95.90.85.47
+  15 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33
+  16 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14
+  17 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3
+  18 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82   1 {}   2 {}
+  3 {}   4 {}   5 {}   6 {}   7 {}   8 {}   9 {}   10 {}   11 {}   12 {}
+  13 {}   14 {}   15 {}   16 {}   17 {}   18 {}   19 {}}
+
+do_execsql_test 1.8.2.1 {
+  SELECT max(b) OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2
+} {89   89   96   96   96   96   96   68   91   91   91   99   99   99   99
+  99   97   97   97   97   97   97   93   93   93   93   84   93   93   93
+  93   93   86   86   86   91   91   91   91   91   85   85   85   59   59
+  91   91   91   91   91   90   90   89   89   89   89   56   56   56   56
+  75   75   89   98   98   98   98   98   94   94   94   94   78   78   78
+  63   87   87   87   87   87   84   84   84   73   95   95   95   95   96
+  98   98   98   98   98   74   74   74   73   73   87   87   87   87   87
+  41   31   31   95   95   95   95   95   88   88   88   88   49   90   90
+  96   96   96   96   96   77   77   77   85   85   85   85   85   74   74
+  70   70   59   47   80   90   90   90   90   90   72   72   72   72   93
+  93   93   93   93   81   81   81   37   37   62   91   91   91   91   91
+  91   91   99   99   99   99   99   95   95   69   84   84   84   84   84
+  84   84   58   58   58   58   83   83   83   83   83}
+
+do_execsql_test 1.8.2.2 {
+  SELECT min(b) OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2
+} {89   81   81   59   38   38   38   38   38   39   6   6   6   6   6   27
+  27   27   8   8   8   8   8   29   23   16   16   16   16   16   16   7   7
+  7   7   7   61   24   24   24   24   12   12   12   3   3   3   3   3   15
+  15   15   15   15   1   1   1   1   1   16   16   16   16   16   36   36
+  4   4   4   4   4   30   29   29   29   2   2   2   2   2   37   37   9   9
+  9   9   9   13   13   13   13   1   1   1   1   1   5   5   5   5   5   11
+  11   8   8   8   8   8   15   15   15   15   22   22   8   8   8   8   8
+  11   34   34   55   55   55   44   2   2   2   2   2   7   29   29   19
+  19   19   19   19   26   26   26   36   36   9   9   9   9   9   33   33
+  33   33   9   9   9   9   9   12   12   12   12   14   33   15   15   15
+  15   3   3   3   3   3   30   30   30   10   10   10   10   10   21   21
+  21   30   30   30   27   27   17   7}
+
+do_execsql_test 1.8.3.1 {
+  SELECT row_number() OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.8.3.2 {
+  SELECT row_number() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.8.3.3 {
+  SELECT row_number() OVER ( ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.8.4.1 {
+  SELECT dense_rank() OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.8.4.2 {
+  SELECT dense_rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.8.4.3 {
+  SELECT dense_rank() OVER ( ORDER BY b ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2
+} {1   1   2   2   3   3   4   5   6   7   7   7   8   8   8   9   9   9   10
+  11   11   12   12   12   13   13   14   15   15   15   16   16   16   17
+  18   19   20   20   21   21   22   22   23   24   25   25   26   26   27
+  28   28   28   29   29   29   30   30   31   32   32   32   32   33   33
+  33   33   34   34   35   35   35   35   36   36   37   37   38   38   38
+  39   40   40   41   42   42   43   43   44   44   45   45   45   45   46
+  47   48   49   50   51   52   52   53   53   53   54   55   55   55   55
+  56   56   56   56   57   58   58   59   59   60   61   62   62   62   63
+  64   65   66   67   68   68   68   69   69   69   70   70   70   71   71
+  71   72   73   73   74   74   75   76   76   77   77   77   78   79   80
+  80   80   80   81   81   81   82   83   83   84   85   85   85   86   86
+  86   87   87   87   87   87   88   88   88   89   90   90   90   91   91
+  91   92   92   93   93   94   94}
+
+do_execsql_test 1.8.4.4 {
+  SELECT dense_rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2
+} {1   2   3   3   3   4   5   6   7   8   8   9   9   9   1   1   2   2   3
+  3   4   4   5   5   6   7   7   8   8   8   9   9   9   9   9   1   1   2
+  2   2   3   3   4   5   6   7   7   8   8   8   9   1   1   2   2   3   3
+  4   4   4   4   5   5   6   7   8   8   8   9   10   10   10   1   2   3
+  4   4   4   4   5   5   6   7   8   8   8   9   9   9   9   10   1   2   2
+  2   3   4   4   5   5   6   6   6   7   7   7   8   8   8   9   9   9   1
+  2   2   2   3   3   4   4   4   4   5   5   6   6   6   7   8   9   10   10
+  10   1   1   1   2   3   3   4   4   5   5   5   5   6   7   8   8   9   9
+  10   10   1   1   1   2   3   3   4   4   4   4   5   6   6   7   8   8   1
+  1   1   2   3   3   3   4   4   4   5   6   6   6   6   7   8   9   9   9
+  10   10}
+
+do_execsql_test 1.8.4.5 {
+  SELECT dense_rank() OVER ( ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   4   4   4   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5   5   5   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   6   6   6   6
+  6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   7   7
+  7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7
+  8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8
+  8   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   10   10
+  10   10   10   10   10   10   10   10   10   10   10   10   10   10   10
+  10   10   10   10   10}
+
+do_execsql_test 1.8.4.6 {
+  SELECT dense_rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   3   3   3   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   4   4   4   4   4   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   5   5   5   5   5   5
+  5   5   5   5   5   5   5   5   5   5   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5
+  5}
+
+do_execsql_test 1.8.5.1 {
+  SELECT rank() OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.8.5.2 {
+  SELECT rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.8.5.3 {
+  SELECT rank() OVER ( ORDER BY b ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2
+} {1   1   3   3   5   5   7   8   9   10   10   10   13   13   13   16   16
+  16   19   20   20   22   22   22   25   25   27   28   28   28   31   31
+  31   34   35   36   37   37   39   39   41   41   43   44   45   45   47
+  47   49   50   50   50   53   53   53   56   56   58   59   59   59   59
+  63   63   63   63   67   67   69   69   69   69   73   73   75   75   77
+  77   77   80   81   81   83   84   84   86   86   88   88   90   90   90
+  90   94   95   96   97   98   99   100   100   102   102   102   105   106
+  106   106   106   110   110   110   110   114   115   115   117   117   119
+  120   121   121   121   124   125   126   127   128   129   129   129   132
+  132   132   135   135   135   138   138   138   141   142   142   144   144
+  146   147   147   149   149   149   152   153   154   154   154   154   158
+  158   158   161   162   162   164   165   165   165   168   168   168   171
+  171   171   171   171   176   176   176   179   180   180   180   183   183
+  183   186   186   188   188   190   190}
+
+do_execsql_test 1.8.5.4 {
+  SELECT rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2
+} {1   2   3   3   3   6   7   8   9   10   10   12   12   12   1   1   3   3
+  5   5   7   7   9   9   11   12   12   14   14   14   17   17   17   17
+  17   1   1   3   3   3   6   6   8   9   10   11   11   13   13   13   16
+  1   1   3   3   5   5   7   7   7   7   11   11   13   14   15   15   15
+  18   19   19   19   1   2   3   4   4   4   4   8   8   10   11   12   12
+  12   15   15   15   15   19   1   2   2   2   5   6   6   8   8   10   10
+  10   13   13   13   16   16   16   19   19   19   1   2   2   2   5   5   7
+  7   7   7   11   11   13   13   13   16   17   18   19   19   19   1   1
+  1   4   5   5   7   7   9   9   9   9   13   14   15   15   17   17   19
+  19   1   1   1   4   5   5   7   7   7   7   11   12   12   14   15   15
+  1   1   1   4   5   5   5   8   8   8   11   12   12   12   12   16   17
+  18   18   18   21   21}
+
+do_execsql_test 1.8.5.5 {
+  SELECT rank() OVER ( ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   15   15   15   15
+  15   15   15   15   15   15   15   15   15   15   15   15   15   15   15
+  15   15   36   36   36   36   36   36   36   36   36   36   36   36   36
+  36   36   36   52   52   52   52   52   52   52   52   52   52   52   52
+  52   52   52   52   52   52   52   52   52   73   73   73   73   73   73
+  73   73   73   73   73   73   73   73   73   73   73   73   73   92   92
+  92   92   92   92   92   92   92   92   92   92   92   92   92   92   92
+  92   92   92   92   113   113   113   113   113   113   113   113   113
+  113   113   113   113   113   113   113   113   113   113   113   113   134
+  134   134   134   134   134   134   134   134   134   134   134   134   134
+  134   134   134   134   134   134   154   154   154   154   154   154   154
+  154   154   154   154   154   154   154   154   154   170   170   170   170
+  170   170   170   170   170   170   170   170   170   170   170   170   170
+  170   170   170   170   170}
+
+do_execsql_test 1.8.5.6 {
+  SELECT rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   15   15   15   15
+  15   15   15   15   15   15   15   15   15   15   15   15   31   31   31
+  31   31   31   31   31   31   31   31   31   31   31   31   31   31   31
+  31   50   50   50   50   50   50   50   50   50   50   50   50   50   50
+  50   50   50   50   50   50   50   71   71   71   71   71   71   71   71
+  71   71   71   71   71   71   71   71   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   22   22   22   22   22   22
+  22   22   22   22   22   22   22   22   22   22   22   22   22   22   22
+  43   43   43   43   43   43   43   43   43   43   43   43   43   43   43
+  43   43   43   43   43   43   64   64   64   64   64   64   64   64   64
+  64   64   64   64   64   64   64   64   64   64   64   84   84   84   84
+  84   84   84   84   84   84   84   84   84   84   84   84   84   84   84
+  84   84   84}
+
+do_execsql_test 1.8.6.1 {
+  SELECT 
+      row_number() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ),
+      rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ),
+      dense_rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW )
+    FROM t2
+} {1 1 1   2 1 1   3 1 1   4 1 1   5 1 1   6 1 1   7 1 1   8 1 1   9 1 1
+  10 1 1   11 1 1   12 1 1   13 1 1   14 1 1   15 15 2   16 15 2   17 15 2
+  18 15 2   19 15 2   20 15 2   21 15 2   22 15 2   23 15 2   24 15 2
+  25 15 2   26 15 2   27 15 2   28 15 2   29 15 2   30 15 2   31 31 3
+  32 31 3   33 31 3   34 31 3   35 31 3   36 31 3   37 31 3   38 31 3
+  39 31 3   40 31 3   41 31 3   42 31 3   43 31 3   44 31 3   45 31 3
+  46 31 3   47 31 3   48 31 3   49 31 3   50 50 4   51 50 4   52 50 4
+  53 50 4   54 50 4   55 50 4   56 50 4   57 50 4   58 50 4   59 50 4
+  60 50 4   61 50 4   62 50 4   63 50 4   64 50 4   65 50 4   66 50 4
+  67 50 4   68 50 4   69 50 4   70 50 4   71 71 5   72 71 5   73 71 5
+  74 71 5   75 71 5   76 71 5   77 71 5   78 71 5   79 71 5   80 71 5
+  81 71 5   82 71 5   83 71 5   84 71 5   85 71 5   86 71 5   1 1 1   2 1 1
+  3 1 1   4 1 1   5 1 1   6 1 1   7 1 1   8 1 1   9 1 1   10 1 1   11 1 1
+  12 1 1   13 1 1   14 1 1   15 1 1   16 1 1   17 1 1   18 1 1   19 1 1
+  20 1 1   21 1 1   22 22 2   23 22 2   24 22 2   25 22 2   26 22 2   27 22 2
+  28 22 2   29 22 2   30 22 2   31 22 2   32 22 2   33 22 2   34 22 2
+  35 22 2   36 22 2   37 22 2   38 22 2   39 22 2   40 22 2   41 22 2
+  42 22 2   43 43 3   44 43 3   45 43 3   46 43 3   47 43 3   48 43 3
+  49 43 3   50 43 3   51 43 3   52 43 3   53 43 3   54 43 3   55 43 3
+  56 43 3   57 43 3   58 43 3   59 43 3   60 43 3   61 43 3   62 43 3
+  63 43 3   64 64 4   65 64 4   66 64 4   67 64 4   68 64 4   69 64 4
+  70 64 4   71 64 4   72 64 4   73 64 4   74 64 4   75 64 4   76 64 4
+  77 64 4   78 64 4   79 64 4   80 64 4   81 64 4   82 64 4   83 64 4
+  84 84 5   85 84 5   86 84 5   87 84 5   88 84 5   89 84 5   90 84 5
+  91 84 5   92 84 5   93 84 5   94 84 5   95 84 5   96 84 5   97 84 5
+  98 84 5   99 84 5   100 84 5   101 84 5   102 84 5   103 84 5   104 84 5
+  105 84 5}
+
+
+do_test 1.8.7.1 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0053 0.0105 0.0158 0.0211 0.0263 0.0316 0.0368 0.0421 0.0474 0.0526 0.0579 0.0632 0.0684 0.0737 0.0789 0.0842 0.0895 0.0947 0.1000 0.1053 0.1105 0.1158 0.1211 0.1263 0.1316 0.1368 0.1421 0.1474 0.1526 0.1579 0.1632 0.1684 0.1737 0.1789 0.1842 0.1895 0.1947 0.2000 0.2053 0.2105 0.2158 0.2211 0.2263 0.2316 0.2368 0.2421 0.2474 0.2526 0.2579 0.2632 0.2684 0.2737 0.2789 0.2842 0.2895 0.2947 0.3000 0.3053 0.3105 0.3158 0.3211 0.3263 0.3316 0.3368 0.3421 0.3474 0.3526 0.3579 0.3632 0.3684 0.3737 0.3789 0.3842 0.3895 0.3947 0.4000 0.4053 0.4105 0.4158 0.4211 0.4263 0.4316 0.4368 0.4421 0.4474 0.4526 0.4579 0.4632 0.4684 0.4737 0.4789 0.4842 0.4895 0.4947 0.5000 0.5053 0.5105 0.5158 0.5211 0.5263 0.5316 0.5368 0.5421 0.5474 0.5526 0.5579 0.5632 0.5684 0.5737 0.5789 0.5842 0.5895 0.5947 0.6000 0.6053 0.6105 0.6158 0.6211 0.6263 0.6316 0.6368 0.6421 0.6474 0.6526 0.6579 0.6632 0.6684 0.6737 0.6789 0.6842 0.6895 0.6947 0.7000 0.7053 0.7105 0.7158 0.7211 0.7263 0.7316 0.7368 0.7421 0.7474 0.7526 0.7579 0.7632 0.7684 0.7737 0.7789 0.7842 0.7895 0.7947 0.8000 0.8053 0.8105 0.8158 0.8211 0.8263 0.8316 0.8368 0.8421 0.8474 0.8526 0.8579 0.8632 0.8684 0.8737 0.8789 0.8842 0.8895 0.8947 0.9000 0.9053 0.9105 0.9158 0.9211 0.9263 0.9316 0.9368 0.9421 0.9474 0.9526 0.9579 0.9632 0.9684 0.9737 0.9789 0.9842 0.9895 0.9947 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.8.7.2 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0769 0.1538 0.2308 0.3077 0.3846 0.4615 0.5385 0.6154 0.6923 0.7692 0.8462 0.9231 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0667 0.1333 0.2000 0.2667 0.3333 0.4000 0.4667 0.5333 0.6000 0.6667 0.7333 0.8000 0.8667 0.9333 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0556 0.1111 0.1667 0.2222 0.2778 0.3333 0.3889 0.4444 0.5000 0.5556 0.6111 0.6667 0.7222 0.7778 0.8333 0.8889 0.9444 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0526 0.1053 0.1579 0.2105 0.2632 0.3158 0.3684 0.4211 0.4737 0.5263 0.5789 0.6316 0.6842 0.7368 0.7895 0.8421 0.8947 0.9474 1.0000 0.0000 0.0667 0.1333 0.2000 0.2667 0.3333 0.4000 0.4667 0.5333 0.6000 0.6667 0.7333 0.8000 0.8667 0.9333 1.0000 0.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.8.7.3 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY b ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0105 0.0105 0.0211 0.0211 0.0316 0.0368 0.0421 0.0474 0.0474 0.0474 0.0632 0.0632 0.0632 0.0789 0.0789 0.0789 0.0947 0.1000 0.1000 0.1105 0.1105 0.1105 0.1263 0.1263 0.1368 0.1421 0.1421 0.1421 0.1579 0.1579 0.1579 0.1737 0.1789 0.1842 0.1895 0.1895 0.2000 0.2000 0.2105 0.2105 0.2211 0.2263 0.2316 0.2316 0.2421 0.2421 0.2526 0.2579 0.2579 0.2579 0.2737 0.2737 0.2737 0.2895 0.2895 0.3000 0.3053 0.3053 0.3053 0.3053 0.3263 0.3263 0.3263 0.3263 0.3474 0.3474 0.3579 0.3579 0.3579 0.3579 0.3789 0.3789 0.3895 0.3895 0.4000 0.4000 0.4000 0.4158 0.4211 0.4211 0.4316 0.4368 0.4368 0.4474 0.4474 0.4579 0.4579 0.4684 0.4684 0.4684 0.4684 0.4895 0.4947 0.5000 0.5053 0.5105 0.5158 0.5211 0.5211 0.5316 0.5316 0.5316 0.5474 0.5526 0.5526 0.5526 0.5526 0.5737 0.5737 0.5737 0.5737 0.5947 0.6000 0.6000 0.6105 0.6105 0.6211 0.6263 0.6316 0.6316 0.6316 0.6474 0.6526 0.6579 0.6632 0.6684 0.6737 0.6737 0.6737 0.6895 0.6895 0.6895 0.7053 0.7053 0.7053 0.7211 0.7211 0.7211 0.7368 0.7421 0.7421 0.7526 0.7526 0.7632 0.7684 0.7684 0.7789 0.7789 0.7789 0.7947 0.8000 0.8053 0.8053 0.8053 0.8053 0.8263 0.8263 0.8263 0.8421 0.8474 0.8474 0.8579 0.8632 0.8632 0.8632 0.8789 0.8789 0.8789 0.8947 0.8947 0.8947 0.8947 0.8947 0.9211 0.9211 0.9211 0.9368 0.9421 0.9421 0.9421 0.9579 0.9579 0.9579 0.9737 0.9737 0.9842 0.9842 0.9947 0.9947}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.8.7.4 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0769 0.1538 0.1538 0.1538 0.3846 0.4615 0.5385 0.6154 0.6923 0.6923 0.8462 0.8462 0.8462 0.0000 0.0000 0.1000 0.1000 0.2000 0.2000 0.3000 0.3000 0.4000 0.4000 0.5000 0.5500 0.5500 0.6500 0.6500 0.6500 0.8000 0.8000 0.8000 0.8000 0.8000 0.0000 0.0000 0.1333 0.1333 0.1333 0.3333 0.3333 0.4667 0.5333 0.6000 0.6667 0.6667 0.8000 0.8000 0.8000 1.0000 0.0000 0.0000 0.1000 0.1000 0.2000 0.2000 0.3000 0.3000 0.3000 0.3000 0.5000 0.5000 0.6000 0.6500 0.7000 0.7000 0.7000 0.8500 0.9000 0.9000 0.9000 0.0000 0.0556 0.1111 0.1667 0.1667 0.1667 0.1667 0.3889 0.3889 0.5000 0.5556 0.6111 0.6111 0.6111 0.7778 0.7778 0.7778 0.7778 1.0000 0.0000 0.0500 0.0500 0.0500 0.2000 0.2500 0.2500 0.3500 0.3500 0.4500 0.4500 0.4500 0.6000 0.6000 0.6000 0.7500 0.7500 0.7500 0.9000 0.9000 0.9000 0.0000 0.0500 0.0500 0.0500 0.2000 0.2000 0.3000 0.3000 0.3000 0.3000 0.5000 0.5000 0.6000 0.6000 0.6000 0.7500 0.8000 0.8500 0.9000 0.9000 0.9000 0.0000 0.0000 0.0000 0.1579 0.2105 0.2105 0.3158 0.3158 0.4211 0.4211 0.4211 0.4211 0.6316 0.6842 0.7368 0.7368 0.8421 0.8421 0.9474 0.9474 0.0000 0.0000 0.0000 0.2000 0.2667 0.2667 0.4000 0.4000 0.4000 0.4000 0.6667 0.7333 0.7333 0.8667 0.9333 0.9333 0.0000 0.0000 0.0000 0.1429 0.1905 0.1905 0.1905 0.3333 0.3333 0.3333 0.4762 0.5238 0.5238 0.5238 0.5238 0.7143 0.7619 0.8095 0.8095 0.8095 0.9524 0.9524}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.8.7.5 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.8.7.6 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER (PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.8.8.1 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0052 0.0105 0.0157 0.0209 0.0262 0.0314 0.0366 0.0419 0.0471 0.0524 0.0576 0.0628 0.0681 0.0733 0.0785 0.0838 0.0890 0.0942 0.0995 0.1047 0.1099 0.1152 0.1204 0.1257 0.1309 0.1361 0.1414 0.1466 0.1518 0.1571 0.1623 0.1675 0.1728 0.1780 0.1832 0.1885 0.1937 0.1990 0.2042 0.2094 0.2147 0.2199 0.2251 0.2304 0.2356 0.2408 0.2461 0.2513 0.2565 0.2618 0.2670 0.2723 0.2775 0.2827 0.2880 0.2932 0.2984 0.3037 0.3089 0.3141 0.3194 0.3246 0.3298 0.3351 0.3403 0.3455 0.3508 0.3560 0.3613 0.3665 0.3717 0.3770 0.3822 0.3874 0.3927 0.3979 0.4031 0.4084 0.4136 0.4188 0.4241 0.4293 0.4346 0.4398 0.4450 0.4503 0.4555 0.4607 0.4660 0.4712 0.4764 0.4817 0.4869 0.4921 0.4974 0.5026 0.5079 0.5131 0.5183 0.5236 0.5288 0.5340 0.5393 0.5445 0.5497 0.5550 0.5602 0.5654 0.5707 0.5759 0.5812 0.5864 0.5916 0.5969 0.6021 0.6073 0.6126 0.6178 0.6230 0.6283 0.6335 0.6387 0.6440 0.6492 0.6545 0.6597 0.6649 0.6702 0.6754 0.6806 0.6859 0.6911 0.6963 0.7016 0.7068 0.7120 0.7173 0.7225 0.7277 0.7330 0.7382 0.7435 0.7487 0.7539 0.7592 0.7644 0.7696 0.7749 0.7801 0.7853 0.7906 0.7958 0.8010 0.8063 0.8115 0.8168 0.8220 0.8272 0.8325 0.8377 0.8429 0.8482 0.8534 0.8586 0.8639 0.8691 0.8743 0.8796 0.8848 0.8901 0.8953 0.9005 0.9058 0.9110 0.9162 0.9215 0.9267 0.9319 0.9372 0.9424 0.9476 0.9529 0.9581 0.9634 0.9686 0.9738 0.9791 0.9843 0.9895 0.9948 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.8.8.2 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0714 0.1429 0.2143 0.2857 0.3571 0.4286 0.5000 0.5714 0.6429 0.7143 0.7857 0.8571 0.9286 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0625 0.1250 0.1875 0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250 0.6875 0.7500 0.8125 0.8750 0.9375 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0526 0.1053 0.1579 0.2105 0.2632 0.3158 0.3684 0.4211 0.4737 0.5263 0.5789 0.6316 0.6842 0.7368 0.7895 0.8421 0.8947 0.9474 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0625 0.1250 0.1875 0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250 0.6875 0.7500 0.8125 0.8750 0.9375 1.0000 0.0455 0.0909 0.1364 0.1818 0.2273 0.2727 0.3182 0.3636 0.4091 0.4545 0.5000 0.5455 0.5909 0.6364 0.6818 0.7273 0.7727 0.8182 0.8636 0.9091 0.9545 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.8.8.3 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY b ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0105 0.0105 0.0209 0.0209 0.0314 0.0314 0.0366 0.0419 0.0471 0.0628 0.0628 0.0628 0.0785 0.0785 0.0785 0.0942 0.0942 0.0942 0.0995 0.1099 0.1099 0.1257 0.1257 0.1257 0.1361 0.1361 0.1414 0.1571 0.1571 0.1571 0.1728 0.1728 0.1728 0.1780 0.1832 0.1885 0.1990 0.1990 0.2094 0.2094 0.2199 0.2199 0.2251 0.2304 0.2408 0.2408 0.2513 0.2513 0.2565 0.2723 0.2723 0.2723 0.2880 0.2880 0.2880 0.2984 0.2984 0.3037 0.3246 0.3246 0.3246 0.3246 0.3455 0.3455 0.3455 0.3455 0.3560 0.3560 0.3770 0.3770 0.3770 0.3770 0.3874 0.3874 0.3979 0.3979 0.4136 0.4136 0.4136 0.4188 0.4293 0.4293 0.4346 0.4450 0.4450 0.4555 0.4555 0.4660 0.4660 0.4869 0.4869 0.4869 0.4869 0.4921 0.4974 0.5026 0.5079 0.5131 0.5183 0.5288 0.5288 0.5445 0.5445 0.5445 0.5497 0.5707 0.5707 0.5707 0.5707 0.5916 0.5916 0.5916 0.5916 0.5969 0.6073 0.6073 0.6178 0.6178 0.6230 0.6283 0.6440 0.6440 0.6440 0.6492 0.6545 0.6597 0.6649 0.6702 0.6859 0.6859 0.6859 0.7016 0.7016 0.7016 0.7173 0.7173 0.7173 0.7330 0.7330 0.7330 0.7382 0.7487 0.7487 0.7592 0.7592 0.7644 0.7749 0.7749 0.7906 0.7906 0.7906 0.7958 0.8010 0.8220 0.8220 0.8220 0.8220 0.8377 0.8377 0.8377 0.8429 0.8534 0.8534 0.8586 0.8743 0.8743 0.8743 0.8901 0.8901 0.8901 0.9162 0.9162 0.9162 0.9162 0.9162 0.9319 0.9319 0.9319 0.9372 0.9529 0.9529 0.9529 0.9686 0.9686 0.9686 0.9791 0.9791 0.9895 0.9895 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.8.8.4 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0714 0.1429 0.3571 0.3571 0.3571 0.4286 0.5000 0.5714 0.6429 0.7857 0.7857 1.0000 1.0000 1.0000 0.0952 0.0952 0.1905 0.1905 0.2857 0.2857 0.3810 0.3810 0.4762 0.4762 0.5238 0.6190 0.6190 0.7619 0.7619 0.7619 1.0000 1.0000 1.0000 1.0000 1.0000 0.1250 0.1250 0.3125 0.3125 0.3125 0.4375 0.4375 0.5000 0.5625 0.6250 0.7500 0.7500 0.9375 0.9375 0.9375 1.0000 0.0952 0.0952 0.1905 0.1905 0.2857 0.2857 0.4762 0.4762 0.4762 0.4762 0.5714 0.5714 0.6190 0.6667 0.8095 0.8095 0.8095 0.8571 1.0000 1.0000 1.0000 0.0526 0.1053 0.1579 0.3684 0.3684 0.3684 0.3684 0.4737 0.4737 0.5263 0.5789 0.7368 0.7368 0.7368 0.9474 0.9474 0.9474 0.9474 1.0000 0.0476 0.1905 0.1905 0.1905 0.2381 0.3333 0.3333 0.4286 0.4286 0.5714 0.5714 0.5714 0.7143 0.7143 0.7143 0.8571 0.8571 0.8571 1.0000 1.0000 1.0000 0.0476 0.1905 0.1905 0.1905 0.2857 0.2857 0.4762 0.4762 0.4762 0.4762 0.5714 0.5714 0.7143 0.7143 0.7143 0.7619 0.8095 0.8571 1.0000 1.0000 1.0000 0.1500 0.1500 0.1500 0.2000 0.3000 0.3000 0.4000 0.4000 0.6000 0.6000 0.6000 0.6000 0.6500 0.7000 0.8000 0.8000 0.9000 0.9000 1.0000 1.0000 0.1875 0.1875 0.1875 0.2500 0.3750 0.3750 0.6250 0.6250 0.6250 0.6250 0.6875 0.8125 0.8125 0.8750 1.0000 1.0000 0.1364 0.1364 0.1364 0.1818 0.3182 0.3182 0.3182 0.4545 0.4545 0.4545 0.5000 0.6818 0.6818 0.6818 0.6818 0.7273 0.7727 0.9091 0.9091 0.9091 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.8.8.5 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.8.8.6 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.8.8.1 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(100) OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 88.0000 89.0000 89.0000 90.0000 90.0000 91.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.8.8.2 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(101) OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 22.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.8.8.3 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(102) OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 88.0000 89.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.8.8.4 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(103) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 22.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.8.8.5 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(104) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000 103.0000 104.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.8.8.6 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(105) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.8.8.7 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(105) OVER ( ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 88.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000 103.0000 104.0000 105.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+do_execsql_test 1.8.9.1 {
+  SELECT last_value(a+b) OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2
+} {99   92   108   72   52   83   55   79   109   65   26   120   119   50
+  70   103   80   124   36   96   59   124   116   110   57   51   52   130
+  103   74   87   48   128   117   105   136   131   71   133   92   109   63
+  84   109   57   146   78   147   113   74   88   150   87   110   65   121
+  106   110   124   85   145   107   161   171   150   156   80   171   120
+  109   158   114   111   136   147   87   173   124   168   173   162   132
+  101   154   167   190   161   110   156   195   198   102   123   177   169
+  140   111   180   119   160   197   152   124   121   134   146   147   132
+  213   141   193   200   210   157   132   136   175   161   218   188   226
+  191   187   208   211   179   138   144   223   196   214   170   212   202
+  163   184   172   173   195   229   240   187   210   200   163   227   228
+  223   191   252   235   225   243   172   187   202   179   179   182   231
+  261   207   263   206   189   209   212   276   181   274   249   239   234
+  213   234   269   196   271   221   210   229   235   250   223   232   229
+  279   224   280   216   207}
+
+do_execsql_test 1.8.9.2 {
+  SELECT last_value(a+b) OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2
+} {147   106   109   168   134   218   191   212   229   240   213   234   196
+  223   92   109   105   136   146   65   156   132   154   102   123   119
+  160   152   146   147   136   243   261   263   210   79   63   84   78
+  120   87   162   124   141   138   227   228   179   231   234   280   124
+  57   130   92   57   110   114   136   147   167   110   180   193   191
+  252   187   179   206   181   221   279   80   116   117   71   80   171
+  173   177   157   161   179   214   225   182   209   269   271   235   229
+  103   74   131   133   113   74   87   145   190   161   169   140   111
+  132   213   187   208   223   235   189   274   108   65   26   70   51
+  52   128   109   121   124   85   107   150   195   226   172   173   187
+  223   207   212   119   50   124   96   110   87   48   110   173   124
+  197   211   144   196   195   200   202   224   216   207   52   83   103
+  36   88   171   158   156   198   121   210   132   210   239   250   232
+  99   72   55   120   59   109   150   161   111   101   200   175   188
+  170   202   163   184   163   172   276   249   229}
+
+do_execsql_test 1.8.9.3 {
+  SELECT last_value(a+b) OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2
+} {65   102   87   138   57   181   80   111   26   48   144   207   36   121
+  132   101   163   172   196   119   136   63   124   179   110   179   182
+  74   132   189   51   52   85   216   163   134   123   210   78   141   57
+  187   71   87   172   173   50   224   88   59   111   170   109   213
+  223   146   147   84   114   191   206   221   157   161   209   229   74
+  140   107   187   207   212   124   202   52   232   55   184   229   106
+  132   152   120   92   110   179   235   65   70   87   110   195   200
+  175   234   160   234   136   80   113   187   109   121   124   196   156
+  210   239   250   72   109   188   202   191   105   154   79   231   147
+  225   103   161   169   223   96   83   249   212   162   227   228   167
+  180   193   117   177   214   145   208   235   150   110   211   103   158
+  200   168   229   92   156   243   280   279   116   173   269   271   131
+  133   223   128   173   197   210   99   150   161   147   218   240   109
+  136   146   261   263   124   130   252   171   190   213   274   108   195
+  226   119   124   171   198   120   276}
+
+do_execsql_test 1.8.9.4 {
+  SELECT last_value(a+b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2
+} {196   134   109   213   223   106   234   191   212   168   229   147   218
+  240   65   102   119   136   123   210   146   147   132   152   160   105
+  154   92   156   243   109   136   146   261   263   87   138   63   124
+  179   78   141   84   120   234   79   231   162   227   228   280   57
+  181   110   179   57   187   114   191   206   221   92   110   136   147
+  167   180   193   279   124   130   252   80   182   71   157   161   209
+  229   179   235   80   225   117   177   214   116   173   269   271   171
+  111   74   132   189   87   74   140   113   187   103   161   169   145
+  208   235   131   133   223   190   213   274   26   51   52   85   172
+  173   107   187   207   212   65   70   109   121   124   223   150   128
+  108   195   226   48   144   207   216   50   224   124   202   87   110
+  195   200   196   96   110   211   173   197   119   124   36   121   132
+  88   52   232   156   210   239   250   83   103   158   210   171   198
+  101   163   172   163   59   111   170   55   184   229   175   72   109
+  188   202   249   200   99   150   161   120   276}
+
+do_execsql_test 1.8.9.5 {
+  SELECT last_value(a+b) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2
+} {147   106   109   168   134   218   191   212   229   240   213   234   196
+  223   92   109   105   136   146   65   156   132   154   102   123   119
+  160   152   146   147   136   243   261   263   210   79   63   84   78
+  120   87   162   124   141   138   227   228   179   231   234   280   124
+  57   130   92   57   110   114   136   147   167   110   180   193   191
+  252   187   179   206   181   221   279   80   116   117   71   80   171
+  173   177   157   161   179   214   225   182   209   269   271   235   229
+  103   74   131   133   113   74   87   145   190   161   169   140   111
+  132   213   187   208   223   235   189   274   108   65   26   70   51
+  52   128   109   121   124   85   107   150   195   226   172   173   187
+  223   207   212   119   50   124   96   110   87   48   110   173   124
+  197   211   144   196   195   200   202   224   216   207   52   83   103
+  36   88   171   158   156   198   121   210   132   210   239   250   232
+  99   72   55   120   59   109   150   161   111   101   200   175   188
+  170   202   163   184   163   172   276   249   229}
+
+do_execsql_test 1.8.9.6 {
+  SELECT last_value(a+b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW) FROM t2
+} {108   52   83   79   65   26   70   103   80   36   116   51   52   128
+  117   71   63   84   109   78   147   88   121   106   124   85   107   171
+  150   80   171   120   109   158   87   168   173   162   156   195   198
+  177   124   121   134   141   210   157   132   161   218   226   191   179
+  138   214   212   172   173   229   240   187   210   227   228   223   225
+  179   182   231   207   209   212   239   234   213   234   269   196   271
+  235   250   223   232   229   280   99   92   72   55   109   120   119
+  50   124   96   59   124   110   57   130   103   74   87   48   105   136
+  131   133   92   109   57   146   113   74   150   87   110   65   110
+  145   161   156   114   111   136   147   173   124   132   101   154   167
+  190   161   110   102   123   169   140   111   180   119   160   197   152
+  146   147   132   213   193   200   136   175   188   187   208   211   144
+  223   196   170   202   163   184   195   200   163   191   252   235   243
+  172   187   202   179   261   263   206   189   276   181   274   249   221
+  210   229   279   224   216   207}
+
+do_execsql_test 1.8.10.1 {
+  SELECT nth_value(b,b+1) OVER (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   56
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   89   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   4   {}   {}   {}   {}   {}   {}   {}   {}
+  53   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   58   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   77   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   99   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.8.10.2 {
+  SELECT nth_value(b,b+1) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   61   {}   {}   {}   81   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   22   {}   {}   {}   12
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   43   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   33   {}   {}   {}   {}   {}
+  {}   4   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.8.10.3 {
+  SELECT nth_value(b,b+1) OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2
+} {{}   1   2   2   2   3   4   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.8.10.4 {
+  SELECT nth_value(b,b+1) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  1   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.8.10.5 {
+  SELECT nth_value(b,b+1) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   61   {}   {}   {}   81   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   22   {}   {}   {}   12
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   43   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   33   {}   {}   {}   {}   {}
+  {}   4   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.8.10.6 {
+  SELECT nth_value(b,b+1) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.8.11.1 {
+  SELECT first_value(b) OVER (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW) FROM t2
+} {89   89   89   89   89   81   96   59   38   68   39   62   91   46   6
+  99   97   27   46   78   54   97   8   67   29   93   84   77   23   16
+  16   93   65   35   47   7   86   74   61   91   85   24   85   43   59
+  12   32   56   3   91   22   90   55   15   28   89   25   47   1   56   40
+  43   56   16   75   36   89   98   76   81   4   94   42   30   78   33
+  29   53   63   2   87   37   80   84   72   41   9   61   73   95   65   13
+  58   96   98   1   21   74   65   35   5   73   11   51   87   41   12   8
+  20   31   31   15   95   22   73   79   88   34   8   11   49   34   90
+  59   96   60   55   75   77   44   2   7   85   57   74   29   70   59   19
+  39   26   26   47   80   90   36   58   47   9   72   72   66   33   93
+  75   64   81   9   23   37   13   12   14   62   91   36   91   33   15
+  34   36   99   3   95   69   58   52   30   50   84   10   84   33   21
+  39   44   58   30   38   34   83}
+
+do_execsql_test 1.8.11.2 {
+  SELECT first_value(b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW) FROM t2
+} {90   90   90   90   90   40   30   80   20   90   60   70   80   90   81
+  81   81   81   81   91   61   91   91   1   81   41   61   1   21   11   51
+  41   31   31   11   62   62   62   62   62   12   32   22   42   2   72
+  12   22   2   72   72   93   93   93   93   93   23   93   43   3   43   33
+  53   63   73   13   73   73   33   93   23   13   54   54   54   54   54
+  84   74   24   4   94   84   74   34   34   44   74   64   14   34   65
+  65   65   65   65   35   85   85   55   15   25   75   95   65   65   35
+  5   15   95   55   75   96   96   96   96   96   46   6   46   16   16   86
+  56   56   56   16   36   76   96   96   26   26   97   97   97   97   97
+  27   97   67   77   47   7   47   87   37   87   77   7   57   47   47   38
+  38   38   38   38   68   78   8   28   98   78   58   98   8   88   8   89
+  89   89   89   89   59   39   99   29   59   89   89   29   9   79   49
+  59   29   59   19   39   9}
+
+do_execsql_test 1.8.11.3 {
+  SELECT first_value(b) OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2
+} {1   1   1   1   1   1   2   2   3   3   4   5   6   7   7   7   8   8   8
+  9   9   9   10   11   11   12   12   12   13   13   14   15   15   15   16
+  16   16   17   19   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   30   30   30   31   31   32   33   33   33
+  33   34   34   34   34   35   35   36   36   36   36   37   37   38   38
+  39   39   39   40   41   41   42   43   43   44   44   46   46   47   47
+  47   47   49   50   51   52   53   54   55   55   56   56   56   57   58
+  58   58   58   59   59   59   59   60   61   61   62   62   63   64   65
+  65   65   66   67   68   69   70   72   72   72   73   73   73   74   74
+  74   75   75   75   76   77   77   78   78   79   80   80   81   81   81
+  82   83   84   84   84   84   85   85   85   86   87   87   88   89   89
+  89   90   90   90   91   91   91   91   91   93   93   93   94   95   95
+  95   96   96   96   97   97}
+
+do_execsql_test 1.8.11.4 {
+  SELECT first_value(b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2
+} {10   10   10   10   10   20   30   30   30   40   50   60   70   80   1   1
+  1   1   1   1   11   11   21   21   31   31   41   41   51   61   61   81
+  81   81   91   2   2   2   2   2   2   12   12   12   22   22   32   42
+  52   62   62   3   3   3   3   3   3   13   13   23   23   33   33   33
+  33   43   43   53   63   73   73   73   4   4   4   4   4   14   24   34
+  34   34   34   44   44   54   64   74   74   74   84   5   5   5   5   5
+  15   15   15   25   35   35   55   55   65   65   65   75   75   75   85
+  85   6   6   6   6   6   16   16   16   26   26   36   36   36   36   46
+  46   56   56   56   66   76   7   7   7   7   7   7   7   17   27   27   37
+  37   47   47   47   47   57   67   77   77   8   8   8   8   8   8   8   28
+  38   38   58   58   58   58   68   78   9   9   9   9   9   9   9   19   29
+  29   29   39   39   39   49   59   59   59   59   69   79   89}
+
+do_execsql_test 1.8.11.5 {
+  SELECT first_value(b) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2
+} {90   90   90   90   90   40   30   80   20   90   60   70   80   90   30
+  50   10   30   81   91   61   91   91   1   81   41   61   1   21   11   51
+  41   31   31   11   81   91   91   21   62   12   32   22   42   2   72
+  12   22   2   72   72   12   62   52   82   93   23   93   43   3   43   33
+  53   63   73   13   73   73   33   93   23   13   33   3   33   83   54
+  84   74   24   4   94   84   74   34   34   44   74   64   14   34   84
+  84   44   34   65   35   85   85   55   15   25   75   95   65   65   35
+  5   15   95   55   75   85   75   15   95   96   46   6   46   16   16   86
+  56   56   56   16   36   76   96   96   26   26   36   66   36   36   97
+  27   97   67   77   47   7   47   87   37   87   77   7   57   47   47   37
+  27   17   7   38   68   78   8   28   98   78   58   98   8   88   8   58
+  58   58   38   89   59   39   99   29   59   89   89   29   9   79   49
+  59   29   59   19   39   9}
+
+do_execsql_test 1.8.11.6 {
+  SELECT first_value(b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW) FROM t2
+} {96   38   68   62   46   6   46   78   54   8   84   16   16   86   74   24
+  12   32   56   22   90   28   56   40   56   16   36   98   76   4   94
+  42   30   78   2   80   84   72   58   96   98   74   12   8   20   22   88
+  34   8   34   90   96   60   44   2   74   70   26   26   80   90   36   58
+  72   72   66   64   12   14   62   36   34   36   58   52   30   50   84
+  10   84   44   58   30   38   34   82   89   81   59   39   91   99   97
+  27   97   67   29   93   77   23   93   65   35   47   7   61   91   85
+  85   43   59   3   91   55   15   89   25   47   1   43   75   89   81   33
+  29   53   63   87   37   41   9   61   73   95   65   13   1   21   65   35
+  5   73   11   51   87   41   31   31   15   95   73   79   11   49   59
+  55   75   77   7   85   57   29   59   19   39   47   47   9   33   93   75
+  81   9   23   37   13   91   91   33   15   99   3   95   69   33   21   39
+  83   27   17   7}
+
+do_execsql_test 1.8.12.1 {
+  SELECT lead(b,b) OVER (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW) FROM t2
+} {96   9   11   89   32   53   91   30   51   56   54   73   22   59   75
+  74   78   8   16   65   15   8   31   87   90   12   32   96   74   76   37
+  85   90   15   35   2   60   36   75   9   51   47   63   51   90   26   42
+  26   8   76   80   90   37   87   56   79   5   87   8   2   39   73   64
+  36   90   72   78   36   73   51   33   20   41   2   26   37   33   8   14
+  33   81   55   1   9   12   39   64   87   72   34   82   21   34   99   62
+  74   41   69   22   75   27   58   8   79   77   26   26   55   {}   29
+  30   7   {}   66   55   2   34   64   {}   33   {}   44   84   {}   {}   95
+  85   19   {}   83   {}   91   {}   {}   9   50   91   33   34   {}   {}
+  84   {}   7   9   {}   {}   {}   44   {}   {}   {}   {}   91   84   {}   95
+  95   52   {}   {}   {}   {}   {}   21   {}   {}   {}   58   {}   {}   {}
+  {}   {}   {}   {}   83   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}}
+
+do_execsql_test 1.8.12.2 {
+  SELECT lead(b,b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   81   {}   {}   {}   21   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   62   {}   {}   {}   12   {}   {}   {}   72
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   53   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   34   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   95   {}   {}   {}   {}   {}   {}   85   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   56   {}   36   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   57   {}   {}   {}   {}   {}   7   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   8   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.8.12.3 {
+  SELECT lead(b,b) OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2
+} {1   2   3   3   5   6   7   8   8   9   9   10   11   12   12   13   13
+  14   15   16   16   17   19   20   21   22   23   24   25   26   27   27
+  28   29   30   31   32   33   33   33   34   34   35   36   36   36   37
+  38   39   39   40   41   42   43   43   44   46   47   47   47   49   50
+  52   53   54   55   56   56   57   58   58   58   59   59   59   60   61
+  62   62   64   65   65   67   69   70   72   72   73   74   74   75   75
+  75   77   78   80   81   81   83   84   84   85   85   85   87   88   89
+  89   89   90   90   91   91   91   93   93   94   95   95   96   97   97
+  98   99   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.8.12.4 {
+  SELECT lead(b,b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2
+} {80   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   1
+  11   81   81   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   12   12   72   82   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   13   23   73   73   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   34   84   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   35   85   85   95   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   36   86   96   96   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   37   47
+  47   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   58   58   68   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   39   49   59   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.8.12.5 {
+  SELECT lead(b,b) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2
+} {34   72   91   74   21   55   23   94   84   95   2   13   61   22   55
+  55   94   85   75   81   65   73   74   21   72   12   94   33   63   73
+  72   96   36   76   3   25   62   3   73   34   12   46   43   93   72   16
+  86   63   15   65   36   77   24   57   25   53   95   34   95   16   97
+  74   97   67   25   98   44   34   65   54   5   68   96   28   47   95
+  34   39   8   38   6   46   96   28   47   95   56   39   99   97   76   8
+  26   9   79   27   95   16   29   {}   58   58   77   85   56   {}   98
+  29   {}   19   96   {}   {}   78   56   98   36   97   {}   89   89   29
+  47   78   {}   {}   {}   38   68   58   {}   58   38   {}   98   {}   {}
+  {}   39   57   9   {}   79   {}   {}   7   {}   {}   {}   9   29   38   78
+  {}   {}   {}   8   39   {}   {}   {}   {}   59   {}   99   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.8.12.6 {
+  SELECT lead(b,b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.8.13.1 {
+  SELECT lag(b,b) OVER (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   38   {}   {}   {}   {}
+  {}   {}   {}   6   {}   {}   {}   {}   {}   81   46   6   {}   {}   {}   {}
+  23   {}   {}   {}   {}   {}   27   {}   {}   {}   35   6   {}   12   {}
+  23   {}   {}   61   84   {}   93   39   47   {}   54   46   96   56   {}
+  16   {}   {}   {}   {}   89   {}   16   43   {}   85   56   29   99   53
+  {}   59   {}   {}   91   59   53   84   99   {}   93   63   47   {}   {}
+  98   33   67   35   75   1   23   13   55   27   75   98   35   73   63   2
+  21   27   13   24   86   23   84   31   20   94   61   65   75   23   36
+  94   55   90   41   77   96   56   29   40   12   89   63   11   5   73
+  79   1   16   28   31   73   5   39   53   63   41   11   40   2   13   33
+  9   29   90   47   72   9   73   30   44   33   74   93   29   74   42   34
+  63   41   34   96   47   77   1   36   74   72   14   36   26   77   9   72
+  64   8   91   31   52   30}
+
+do_execsql_test 1.8.13.2 {
+  SELECT lag(b,b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   61   {}   81   {}   {}   {}   {}
+  1   {}   {}   {}   {}   {}   {}   {}   {}   {}   22   {}   {}   {}   12
+  {}   {}   62   {}   {}   {}   {}   {}   {}   {}   23   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   43   {}   23   {}   {}   {}   {}   {}
+  {}   54   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   75   {}
+  {}   {}   {}   {}   {}   55   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   47   {}   {}   {}   {}
+  {}   27   7   {}   {}   {}   {}   {}   {}   {}   {}   {}   68   {}   8   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   89   {}   {}
+  {}   {}   {}   {}   {}   29   9   {}   {}   {}}
+
+do_execsql_test 1.8.13.3 {
+  SELECT lag(b,b) OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2
+} {{}   1   1   1   1   2   2   2   2   2   2   3   3   3   4   4   5   6   6
+  6   7   7   7   7   7   8   8   8   8   8   8   9   9   9   9   9   9   9
+  9   9   9   10   10   10   10   11   11   11   11   11   12   12   12   12
+  13   13   13   13   13   14   15   15   15   15   16   16   16   16   16
+  17   19   20   20   21   21   21   21   22   22   22   22   23   23   23
+  23   23   24   23   24   24   25   26   26   26   26   26   26   26   26
+  26   26   26   27   27   27   27   28   29   29   29   29   30   30   30
+  30   30   30   31   31   31   31   31   32   32   32   32   32   32   31
+  32   33   33   33   33   33   33   34   34   34   34   34   34   34   34
+  35   35   35   35   35   36   36   36   36   36   36   36   37   37   37
+  38   38   38   38   38   38   39   39   39   39   40   40   41   41   42
+  43   42   43   43   43   43   44   44   44   46   46   46   47   47   47
+  47   47}
+
+do_execsql_test 1.8.13.4 {
+  SELECT lag(b,b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  1   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.8.13.5 {
+  SELECT lag(b,b) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   61   80   81   {}   {}   {}   {}
+  1   {}   {}   {}   30   {}   21   90   61   {}   22   {}   11   41   12
+  {}   {}   62   {}   {}   {}   {}   31   {}   50   23   30   21   90   {}
+  {}   62   {}   {}   81   {}   22   43   62   23   32   {}   91   {}   90
+  93   54   {}   {}   90   72   12   22   90   81   83   23   80   20   72
+  43   51   33   80   90   2   34   54   1   20   62   12   13   75   44   30
+  93   91   1   21   55   61   61   13   85   3   65   65   91   73   33   93
+  55   84   62   31   11   65   35   85   33   55   15   12   75   22   3
+  73   65   36   85   43   95   43   13   47   44   65   65   96   36   27
+  7   46   34   94   47   36   73   34   35   73   68   24   8   75   85   75
+  66   34   95   36   84   77   46   34   84   47   89   65   36   16   38
+  76   58   57   29   9   44   56   17}
+
+do_execsql_test 1.8.13.6 {
+  SELECT lag(b,b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.8.14.1 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW) FROM t2
+} {89   89.81   89.81.96   89.81.96.59   89.81.96.59.38   81.96.59.38.68
+  96.59.38.68.39   59.38.68.39.62   38.68.39.62.91   68.39.62.91.46
+  39.62.91.46.6   62.91.46.6.99   91.46.6.99.97   46.6.99.97.27
+  6.99.97.27.46   99.97.27.46.78   97.27.46.78.54   27.46.78.54.97
+  46.78.54.97.8   78.54.97.8.67   54.97.8.67.29   97.8.67.29.93
+  8.67.29.93.84   67.29.93.84.77   29.93.84.77.23   93.84.77.23.16
+  84.77.23.16.16   77.23.16.16.93   23.16.16.93.65   16.16.93.65.35
+  16.93.65.35.47   93.65.35.47.7   65.35.47.7.86   35.47.7.86.74
+  47.7.86.74.61   7.86.74.61.91   86.74.61.91.85   74.61.91.85.24
+  61.91.85.24.85   91.85.24.85.43   85.24.85.43.59   24.85.43.59.12
+  85.43.59.12.32   43.59.12.32.56   59.12.32.56.3   12.32.56.3.91
+  32.56.3.91.22   56.3.91.22.90   3.91.22.90.55   91.22.90.55.15
+  22.90.55.15.28   90.55.15.28.89   55.15.28.89.25   15.28.89.25.47
+  28.89.25.47.1   89.25.47.1.56   25.47.1.56.40   47.1.56.40.43
+  1.56.40.43.56   56.40.43.56.16   40.43.56.16.75   43.56.16.75.36
+  56.16.75.36.89   16.75.36.89.98   75.36.89.98.76   36.89.98.76.81
+  89.98.76.81.4   98.76.81.4.94   76.81.4.94.42   81.4.94.42.30
+  4.94.42.30.78   94.42.30.78.33   42.30.78.33.29   30.78.33.29.53
+  78.33.29.53.63   33.29.53.63.2   29.53.63.2.87   53.63.2.87.37
+  63.2.87.37.80   2.87.37.80.84   87.37.80.84.72   37.80.84.72.41
+  80.84.72.41.9   84.72.41.9.61   72.41.9.61.73   41.9.61.73.95
+  9.61.73.95.65   61.73.95.65.13   73.95.65.13.58   95.65.13.58.96
+  65.13.58.96.98   13.58.96.98.1   58.96.98.1.21   96.98.1.21.74
+  98.1.21.74.65   1.21.74.65.35   21.74.65.35.5   74.65.35.5.73
+  65.35.5.73.11   35.5.73.11.51   5.73.11.51.87   73.11.51.87.41
+  11.51.87.41.12   51.87.41.12.8   87.41.12.8.20   41.12.8.20.31
+  12.8.20.31.31   8.20.31.31.15   20.31.31.15.95   31.31.15.95.22
+  31.15.95.22.73   15.95.22.73.79   95.22.73.79.88   22.73.79.88.34
+  73.79.88.34.8   79.88.34.8.11   88.34.8.11.49   34.8.11.49.34
+  8.11.49.34.90   11.49.34.90.59   49.34.90.59.96   34.90.59.96.60
+  90.59.96.60.55   59.96.60.55.75   96.60.55.75.77   60.55.75.77.44
+  55.75.77.44.2   75.77.44.2.7   77.44.2.7.85   44.2.7.85.57   2.7.85.57.74
+  7.85.57.74.29   85.57.74.29.70   57.74.29.70.59   74.29.70.59.19
+  29.70.59.19.39   70.59.19.39.26   59.19.39.26.26   19.39.26.26.47
+  39.26.26.47.80   26.26.47.80.90   26.47.80.90.36   47.80.90.36.58
+  80.90.36.58.47   90.36.58.47.9   36.58.47.9.72   58.47.9.72.72
+  47.9.72.72.66   9.72.72.66.33   72.72.66.33.93   72.66.33.93.75
+  66.33.93.75.64   33.93.75.64.81   93.75.64.81.9   75.64.81.9.23
+  64.81.9.23.37   81.9.23.37.13   9.23.37.13.12   23.37.13.12.14
+  37.13.12.14.62   13.12.14.62.91   12.14.62.91.36   14.62.91.36.91
+  62.91.36.91.33   91.36.91.33.15   36.91.33.15.34   91.33.15.34.36
+  33.15.34.36.99   15.34.36.99.3   34.36.99.3.95   36.99.3.95.69
+  99.3.95.69.58   3.95.69.58.52   95.69.58.52.30   69.58.52.30.50
+  58.52.30.50.84   52.30.50.84.10   30.50.84.10.84   50.84.10.84.33
+  84.10.84.33.21   10.84.33.21.39   84.33.21.39.44   33.21.39.44.58
+  21.39.44.58.30   39.44.58.30.38   44.58.30.38.34   58.30.38.34.83
+  30.38.34.83.27   38.34.83.27.82   34.83.27.82.17   83.27.82.17.7}
+
+do_execsql_test 1.8.14.2 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW) FROM t2
+} {90   90.40   90.40.30   90.40.30.80   90.40.30.80.20   40.30.80.20.90
+  30.80.20.90.60   80.20.90.60.70   20.90.60.70.80   90.60.70.80.90
+  60.70.80.90.30   70.80.90.30.50   80.90.30.50.10   90.30.50.10.30   81
+  81.91   81.91.61   81.91.61.91   81.91.61.91.91   91.61.91.91.1
+  61.91.91.1.81   91.91.1.81.41   91.1.81.41.61   1.81.41.61.1
+  81.41.61.1.21   41.61.1.21.11   61.1.21.11.51   1.21.11.51.41
+  21.11.51.41.31   11.51.41.31.31   51.41.31.31.11   41.31.31.11.81
+  31.31.11.81.91   31.11.81.91.91   11.81.91.91.21   62   62.12   62.12.32
+  62.12.32.22   62.12.32.22.42   12.32.22.42.2   32.22.42.2.72
+  22.42.2.72.12   42.2.72.12.22   2.72.12.22.2   72.12.22.2.72
+  12.22.2.72.72   22.2.72.72.12   2.72.72.12.62   72.72.12.62.52
+  72.12.62.52.82   93   93.23   93.23.93   93.23.93.43   93.23.93.43.3
+  23.93.43.3.43   93.43.3.43.33   43.3.43.33.53   3.43.33.53.63
+  43.33.53.63.73   33.53.63.73.13   53.63.73.13.73   63.73.13.73.73
+  73.13.73.73.33   13.73.73.33.93   73.73.33.93.23   73.33.93.23.13
+  33.93.23.13.33   93.23.13.33.3   23.13.33.3.33   13.33.3.33.83   54   54.84
+  54.84.74   54.84.74.24   54.84.74.24.4   84.74.24.4.94   74.24.4.94.84
+  24.4.94.84.74   4.94.84.74.34   94.84.74.34.34   84.74.34.34.44
+  74.34.34.44.74   34.34.44.74.64   34.44.74.64.14   44.74.64.14.34
+  74.64.14.34.84   64.14.34.84.84   14.34.84.84.44   34.84.84.44.34   65
+  65.35   65.35.85   65.35.85.85   65.35.85.85.55   35.85.85.55.15
+  85.85.55.15.25   85.55.15.25.75   55.15.25.75.95   15.25.75.95.65
+  25.75.95.65.65   75.95.65.65.35   95.65.65.35.5   65.65.35.5.15
+  65.35.5.15.95   35.5.15.95.55   5.15.95.55.75   15.95.55.75.85
+  95.55.75.85.75   55.75.85.75.15   75.85.75.15.95   96   96.46   96.46.6
+  96.46.6.46   96.46.6.46.16   46.6.46.16.16   6.46.16.16.86   46.16.16.86.56
+  16.16.86.56.56   16.86.56.56.56   86.56.56.56.16   56.56.56.16.36
+  56.56.16.36.76   56.16.36.76.96   16.36.76.96.96   36.76.96.96.26
+  76.96.96.26.26   96.96.26.26.36   96.26.26.36.66   26.26.36.66.36
+  26.36.66.36.36   97   97.27   97.27.97   97.27.97.67   97.27.97.67.77
+  27.97.67.77.47   97.67.77.47.7   67.77.47.7.47   77.47.7.47.87
+  47.7.47.87.37   7.47.87.37.87   47.87.37.87.77   87.37.87.77.7
+  37.87.77.7.57   87.77.7.57.47   77.7.57.47.47   7.57.47.47.37
+  57.47.47.37.27   47.47.37.27.17   47.37.27.17.7   38   38.68   38.68.78
+  38.68.78.8   38.68.78.8.28   68.78.8.28.98   78.8.28.98.78   8.28.98.78.58
+  28.98.78.58.98   98.78.58.98.8   78.58.98.8.88   58.98.8.88.8
+  98.8.88.8.58   8.88.8.58.58   88.8.58.58.58   8.58.58.58.38   89   89.59
+  89.59.39   89.59.39.99   89.59.39.99.29   59.39.99.29.59   39.99.29.59.89
+  99.29.59.89.89   29.59.89.89.29   59.89.89.29.9   89.89.29.9.79
+  89.29.9.79.49   29.9.79.49.59   9.79.49.59.29   79.49.59.29.59
+  49.59.29.59.19   59.29.59.19.39   29.59.19.39.9   59.19.39.9.9
+  19.39.9.9.99   39.9.9.99.69   9.9.99.69.39}
+
+do_execsql_test 1.8.14.3 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2
+} {1   1.1   1.1.2   1.1.2.2   1.1.2.2.3   1.2.2.3.3   2.2.3.3.4   2.3.3.4.5
+  3.3.4.5.6   3.4.5.6.7   4.5.6.7.7   5.6.7.7.7   6.7.7.7.8   7.7.7.8.8
+  7.7.8.8.8   7.8.8.8.9   8.8.8.9.9   8.8.9.9.9   8.9.9.9.10   9.9.9.10.11
+  9.9.10.11.11   9.10.11.11.12   10.11.11.12.12   11.11.12.12.12
+  11.12.12.12.13   12.12.12.13.13   12.12.13.13.14   12.13.13.14.15
+  13.13.14.15.15   13.14.15.15.15   14.15.15.15.16   15.15.15.16.16
+  15.15.16.16.16   15.16.16.16.17   16.16.16.17.19   16.16.17.19.20
+  16.17.19.20.21   17.19.20.21.21   19.20.21.21.22   20.21.21.22.22
+  21.21.22.22.23   21.22.22.23.23   22.22.23.23.24   22.23.23.24.25
+  23.23.24.25.26   23.24.25.26.26   24.25.26.26.27   25.26.26.27.27
+  26.26.27.27.28   26.27.27.28.29   27.27.28.29.29   27.28.29.29.29
+  28.29.29.29.30   29.29.29.30.30   29.29.30.30.30   29.30.30.30.31
+  30.30.30.31.31   30.30.31.31.32   30.31.31.32.33   31.31.32.33.33
+  31.32.33.33.33   32.33.33.33.33   33.33.33.33.34   33.33.33.34.34
+  33.33.34.34.34   33.34.34.34.34   34.34.34.34.35   34.34.34.35.35
+  34.34.35.35.36   34.35.35.36.36   35.35.36.36.36   35.36.36.36.36
+  36.36.36.36.37   36.36.36.37.37   36.36.37.37.38   36.37.37.38.38
+  37.37.38.38.39   37.38.38.39.39   38.38.39.39.39   38.39.39.39.40
+  39.39.39.40.41   39.39.40.41.41   39.40.41.41.42   40.41.41.42.43
+  41.41.42.43.43   41.42.43.43.44   42.43.43.44.44   43.43.44.44.46
+  43.44.44.46.46   44.44.46.46.47   44.46.46.47.47   46.46.47.47.47
+  46.47.47.47.47   47.47.47.47.49   47.47.47.49.50   47.47.49.50.51
+  47.49.50.51.52   49.50.51.52.53   50.51.52.53.54   51.52.53.54.55
+  52.53.54.55.55   53.54.55.55.56   54.55.55.56.56   55.55.56.56.56
+  55.56.56.56.57   56.56.56.57.58   56.56.57.58.58   56.57.58.58.58
+  57.58.58.58.58   58.58.58.58.59   58.58.58.59.59   58.58.59.59.59
+  58.59.59.59.59   59.59.59.59.60   59.59.59.60.61   59.59.60.61.61
+  59.60.61.61.62   60.61.61.62.62   61.61.62.62.63   61.62.62.63.64
+  62.62.63.64.65   62.63.64.65.65   63.64.65.65.65   64.65.65.65.66
+  65.65.65.66.67   65.65.66.67.68   65.66.67.68.69   66.67.68.69.70
+  67.68.69.70.72   68.69.70.72.72   69.70.72.72.72   70.72.72.72.73
+  72.72.72.73.73   72.72.73.73.73   72.73.73.73.74   73.73.73.74.74
+  73.73.74.74.74   73.74.74.74.75   74.74.74.75.75   74.74.75.75.75
+  74.75.75.75.76   75.75.75.76.77   75.75.76.77.77   75.76.77.77.78
+  76.77.77.78.78   77.77.78.78.79   77.78.78.79.80   78.78.79.80.80
+  78.79.80.80.81   79.80.80.81.81   80.80.81.81.81   80.81.81.81.82
+  81.81.81.82.83   81.81.82.83.84   81.82.83.84.84   82.83.84.84.84
+  83.84.84.84.84   84.84.84.84.85   84.84.84.85.85   84.84.85.85.85
+  84.85.85.85.86   85.85.85.86.87   85.85.86.87.87   85.86.87.87.88
+  86.87.87.88.89   87.87.88.89.89   87.88.89.89.89   88.89.89.89.90
+  89.89.89.90.90   89.89.90.90.90   89.90.90.90.91   90.90.90.91.91
+  90.90.91.91.91   90.91.91.91.91   91.91.91.91.91   91.91.91.91.93
+  91.91.91.93.93   91.91.93.93.93   91.93.93.93.94   93.93.93.94.95
+  93.93.94.95.95   93.94.95.95.95   94.95.95.95.96   95.95.95.96.96
+  95.95.96.96.96   95.96.96.96.97   96.96.96.97.97   96.96.97.97.98
+  96.97.97.98.98   97.97.98.98.99   97.98.98.99.99}
+
+do_execsql_test 1.8.14.4 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2
+} {10   10.20   10.20.30   10.20.30.30   10.20.30.30.30   20.30.30.30.40
+  30.30.30.40.50   30.30.40.50.60   30.40.50.60.70   40.50.60.70.80
+  50.60.70.80.80   60.70.80.80.90   70.80.80.90.90   80.80.90.90.90   1   1.1
+  1.1.11   1.1.11.11   1.1.11.11.21   1.11.11.21.21   11.11.21.21.31
+  11.21.21.31.31   21.21.31.31.41   21.31.31.41.41   31.31.41.41.51
+  31.41.41.51.61   41.41.51.61.61   41.51.61.61.81   51.61.61.81.81
+  61.61.81.81.81   61.81.81.81.91   81.81.81.91.91   81.81.91.91.91
+  81.91.91.91.91   91.91.91.91.91   2   2.2   2.2.12   2.2.12.12
+  2.2.12.12.12   2.12.12.12.22   12.12.12.22.22   12.12.22.22.32
+  12.22.22.32.42   22.22.32.42.52   22.32.42.52.62   32.42.52.62.62
+  42.52.62.62.72   52.62.62.72.72   62.62.72.72.72   62.72.72.72.82   3   3.3
+  3.3.13   3.3.13.13   3.3.13.13.23   3.13.13.23.23   13.13.23.23.33
+  13.23.23.33.33   23.23.33.33.33   23.33.33.33.33   33.33.33.33.43
+  33.33.33.43.43   33.33.43.43.53   33.43.43.53.63   43.43.53.63.73
+  43.53.63.73.73   53.63.73.73.73   63.73.73.73.83   73.73.73.83.93
+  73.73.83.93.93   73.83.93.93.93   4   4.14   4.14.24   4.14.24.34
+  4.14.24.34.34   14.24.34.34.34   24.34.34.34.34   34.34.34.34.44
+  34.34.34.44.44   34.34.44.44.54   34.44.44.54.64   44.44.54.64.74
+  44.54.64.74.74   54.64.74.74.74   64.74.74.74.84   74.74.74.84.84
+  74.74.84.84.84   74.84.84.84.84   84.84.84.84.94   5   5.15   5.15.15
+  5.15.15.15   5.15.15.15.25   15.15.15.25.35   15.15.25.35.35
+  15.25.35.35.55   25.35.35.55.55   35.35.55.55.65   35.55.55.65.65
+  55.55.65.65.65   55.65.65.65.75   65.65.65.75.75   65.65.75.75.75
+  65.75.75.75.85   75.75.75.85.85   75.75.85.85.85   75.85.85.85.95
+  85.85.85.95.95   85.85.95.95.95   6   6.16   6.16.16   6.16.16.16
+  6.16.16.16.26   16.16.16.26.26   16.16.26.26.36   16.26.26.36.36
+  26.26.36.36.36   26.36.36.36.36   36.36.36.36.46   36.36.36.46.46
+  36.36.46.46.56   36.46.46.56.56   46.46.56.56.56   46.56.56.56.66
+  56.56.56.66.76   56.56.66.76.86   56.66.76.86.96   66.76.86.96.96
+  76.86.96.96.96   7   7.7   7.7.7   7.7.7.17   7.7.7.17.27   7.7.17.27.27
+  7.17.27.27.37   17.27.27.37.37   27.27.37.37.47   27.37.37.47.47
+  37.37.47.47.47   37.47.47.47.47   47.47.47.47.57   47.47.47.57.67
+  47.47.57.67.77   47.57.67.77.77   57.67.77.77.87   67.77.77.87.87
+  77.77.87.87.97   77.87.87.97.97   8   8.8   8.8.8   8.8.8.28   8.8.8.28.38
+  8.8.28.38.38   8.28.38.38.58   28.38.38.58.58   38.38.58.58.58
+  38.58.58.58.58   58.58.58.58.68   58.58.58.68.78   58.58.68.78.78
+  58.68.78.78.88   68.78.78.88.98   78.78.88.98.98   9   9.9   9.9.9
+  9.9.9.19   9.9.9.19.29   9.9.19.29.29   9.19.29.29.29   19.29.29.29.39
+  29.29.29.39.39   29.29.39.39.39   29.39.39.39.49   39.39.39.49.59
+  39.39.49.59.59   39.49.59.59.59   49.59.59.59.59   59.59.59.59.69
+  59.59.59.69.79   59.59.69.79.89   59.69.79.89.89   69.79.89.89.89
+  79.89.89.89.99   89.89.89.99.99}
+
+do_execsql_test 1.8.14.5 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW ) FROM t2
+} {90   90.40   90.40.30   90.40.30.80   90.40.30.80.20   40.30.80.20.90
+  30.80.20.90.60   80.20.90.60.70   20.90.60.70.80   90.60.70.80.90
+  60.70.80.90.30   70.80.90.30.50   80.90.30.50.10   90.30.50.10.30
+  30.50.10.30.81   50.10.30.81.91   10.30.81.91.61   30.81.91.61.91
+  81.91.61.91.91   91.61.91.91.1   61.91.91.1.81   91.91.1.81.41
+  91.1.81.41.61   1.81.41.61.1   81.41.61.1.21   41.61.1.21.11
+  61.1.21.11.51   1.21.11.51.41   21.11.51.41.31   11.51.41.31.31
+  51.41.31.31.11   41.31.31.11.81   31.31.11.81.91   31.11.81.91.91
+  11.81.91.91.21   81.91.91.21.62   91.91.21.62.12   91.21.62.12.32
+  21.62.12.32.22   62.12.32.22.42   12.32.22.42.2   32.22.42.2.72
+  22.42.2.72.12   42.2.72.12.22   2.72.12.22.2   72.12.22.2.72
+  12.22.2.72.72   22.2.72.72.12   2.72.72.12.62   72.72.12.62.52
+  72.12.62.52.82   12.62.52.82.93   62.52.82.93.23   52.82.93.23.93
+  82.93.23.93.43   93.23.93.43.3   23.93.43.3.43   93.43.3.43.33
+  43.3.43.33.53   3.43.33.53.63   43.33.53.63.73   33.53.63.73.13
+  53.63.73.13.73   63.73.13.73.73   73.13.73.73.33   13.73.73.33.93
+  73.73.33.93.23   73.33.93.23.13   33.93.23.13.33   93.23.13.33.3
+  23.13.33.3.33   13.33.3.33.83   33.3.33.83.54   3.33.83.54.84
+  33.83.54.84.74   83.54.84.74.24   54.84.74.24.4   84.74.24.4.94
+  74.24.4.94.84   24.4.94.84.74   4.94.84.74.34   94.84.74.34.34
+  84.74.34.34.44   74.34.34.44.74   34.34.44.74.64   34.44.74.64.14
+  44.74.64.14.34   74.64.14.34.84   64.14.34.84.84   14.34.84.84.44
+  34.84.84.44.34   84.84.44.34.65   84.44.34.65.35   44.34.65.35.85
+  34.65.35.85.85   65.35.85.85.55   35.85.85.55.15   85.85.55.15.25
+  85.55.15.25.75   55.15.25.75.95   15.25.75.95.65   25.75.95.65.65
+  75.95.65.65.35   95.65.65.35.5   65.65.35.5.15   65.35.5.15.95
+  35.5.15.95.55   5.15.95.55.75   15.95.55.75.85   95.55.75.85.75
+  55.75.85.75.15   75.85.75.15.95   85.75.15.95.96   75.15.95.96.46
+  15.95.96.46.6   95.96.46.6.46   96.46.6.46.16   46.6.46.16.16
+  6.46.16.16.86   46.16.16.86.56   16.16.86.56.56   16.86.56.56.56
+  86.56.56.56.16   56.56.56.16.36   56.56.16.36.76   56.16.36.76.96
+  16.36.76.96.96   36.76.96.96.26   76.96.96.26.26   96.96.26.26.36
+  96.26.26.36.66   26.26.36.66.36   26.36.66.36.36   36.66.36.36.97
+  66.36.36.97.27   36.36.97.27.97   36.97.27.97.67   97.27.97.67.77
+  27.97.67.77.47   97.67.77.47.7   67.77.47.7.47   77.47.7.47.87
+  47.7.47.87.37   7.47.87.37.87   47.87.37.87.77   87.37.87.77.7
+  37.87.77.7.57   87.77.7.57.47   77.7.57.47.47   7.57.47.47.37
+  57.47.47.37.27   47.47.37.27.17   47.37.27.17.7   37.27.17.7.38
+  27.17.7.38.68   17.7.38.68.78   7.38.68.78.8   38.68.78.8.28
+  68.78.8.28.98   78.8.28.98.78   8.28.98.78.58   28.98.78.58.98
+  98.78.58.98.8   78.58.98.8.88   58.98.8.88.8   98.8.88.8.58   8.88.8.58.58
+  88.8.58.58.58   8.58.58.58.38   58.58.58.38.89   58.58.38.89.59
+  58.38.89.59.39   38.89.59.39.99   89.59.39.99.29   59.39.99.29.59
+  39.99.29.59.89   99.29.59.89.89   29.59.89.89.29   59.89.89.29.9
+  89.89.29.9.79   89.29.9.79.49   29.9.79.49.59   9.79.49.59.29
+  79.49.59.29.59   49.59.29.59.19   59.29.59.19.39   29.59.19.39.9
+  59.19.39.9.9   19.39.9.9.99   39.9.9.99.69   9.9.99.69.39}
+
+do_execsql_test 1.8.14.6 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW) FROM t2
+} {96   38   68   62   46   6   46   78   54   8   84   16   16   86   74   24
+  12   32   56   22   90   28   56   40   56   16   36   98   76   4   94
+  42   30   78   2   80   84   72   58   96   98   74   12   8   20   22   88
+  34   8   34   90   96   60   44   2   74   70   26   26   80   90   36   58
+  72   72   66   64   12   14   62   36   34   36   58   52   30   50   84
+  10   84   44   58   30   38   34   82   89   81   59   39   91   99   97
+  27   97   67   29   93   77   23   93   65   35   47   7   61   91   85
+  85   43   59   3   91   55   15   89   25   47   1   43   75   89   81   33
+  29   53   63   87   37   41   9   61   73   95   65   13   1   21   65   35
+  5   73   11   51   87   41   31   31   15   95   73   79   11   49   59
+  55   75   77   7   85   57   29   59   19   39   47   47   9   33   93   75
+  81   9   23   37   13   91   91   33   15   99   3   95   69   33   21   39
+  83   27   17   7}
+
+do_execsql_test 1.8.14.7 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (win1 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW) 
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a)
+    ORDER BY 1
+} {1   1   10   11   11   12   12   12   13   13   14   15   15   15   16   16
+  16   17   19   2   2   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   3   3   30   30   30   31   31   32   33   33
+  33   33   34   34   34   34   35   35   36   36   36   36   37   37   38
+  38   39   39   39   4   40   41   41   42   43   43   44   44   46   46
+  47   47   47   47   49   5   50   51   52   53   54   55   55   56   56
+  56   57   58   58   58   58   59   59   59   59   6   60   61   61   62
+  62   63   64   65   65   65   66   67   68   69   7   7   7   70   72   72
+  72   73   73   73   74   74   74   75   75   75   76   77   77   78   78
+  79   8   8   8   80   80   81   81   81   82   83   84   84   84   84   85
+  85   85   86   87   87   88   89   89   89   9   9   9   90   90   90   91
+  91   91   91   91   93   93   93   94   95   95   95   96   96   96   97
+  97   98   98   99   99}
+
+do_execsql_test 1.8.14.8 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (win1 ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW) 
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a ORDER BY b%10)
+    ORDER BY 1
+} {1   1   10   11   11   12   12   12   13   13   14   15   15   15   16   16
+  16   17   19   2   2   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   3   3   30   30   30   31   31   32   33   33
+  33   33   34   34   34   34   35   35   36   36   36   36   37   37   38
+  38   39   39   39   4   40   41   41   42   43   43   44   44   46   46
+  47   47   47   47   49   5   50   51   52   53   54   55   55   56   56
+  56   57   58   58   58   58   59   59   59   59   6   60   61   61   62
+  62   63   64   65   65   65   66   67   68   69   7   7   7   70   72   72
+  72   73   73   73   74   74   74   75   75   75   76   77   77   78   78
+  79   8   8   8   80   80   81   81   81   82   83   84   84   84   84   85
+  85   85   86   87   87   88   89   89   89   9   9   9   90   90   90   91
+  91   91   91   91   93   93   93   94   95   95   95   96   96   96   97
+  97   98   98   99   99}
+
+do_execsql_test 1.8.14.9 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER win2
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a ORDER BY b%10),
+           win2 AS (win1 ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW)
+    ORDER BY 1
+} {1   1   10   11   11   12   12   12   13   13   14   15   15   15   16   16
+  16   17   19   2   2   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   3   3   30   30   30   31   31   32   33   33
+  33   33   34   34   34   34   35   35   36   36   36   36   37   37   38
+  38   39   39   39   4   40   41   41   42   43   43   44   44   46   46
+  47   47   47   47   49   5   50   51   52   53   54   55   55   56   56
+  56   57   58   58   58   58   59   59   59   59   6   60   61   61   62
+  62   63   64   65   65   65   66   67   68   69   7   7   7   70   72   72
+  72   73   73   73   74   74   74   75   75   75   76   77   77   78   78
+  79   8   8   8   80   80   81   81   81   82   83   84   84   84   84   85
+  85   85   86   87   87   88   89   89   89   9   9   9   90   90   90   91
+  91   91   91   91   93   93   93   94   95   95   95   96   96   96   97
+  97   98   98   99   99}
+
+do_execsql_test 1.8.15.1 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE a%2=0) OVER win FROM t2
+    WINDOW win AS (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW)
+} {1 89   2 89   3 89.96   4 89.96   5 89.96.38   5 96.38   5 96.38.39
+  5 38.39   5 38.39.91   5 39.91   5 39.91.6   5 91.6   5 91.6.97   5 6.97
+  5 6.97.46   5 97.46   5 97.46.54   5 46.54   5 46.54.8   5 54.8   5 54.8.29
+  5 8.29   5 8.29.84   5 29.84   5 29.84.23   5 84.23   5 84.23.16   5 23.16
+  5 23.16.65   5 16.65   5 16.65.47   5 65.47   5 65.47.86   5 47.86
+  5 47.86.61   5 86.61   5 86.61.85   5 61.85   5 61.85.85   5 85.85
+  5 85.85.59   5 85.59   5 85.59.32   5 59.32   5 59.32.3   5 32.3
+  5 32.3.22   5 3.22   5 3.22.55   5 22.55   5 22.55.28   5 55.28
+  5 55.28.25   5 28.25   5 28.25.1   5 25.1   5 25.1.40   5 1.40   5 1.40.56
+  5 40.56   5 40.56.75   5 56.75   5 56.75.89   5 75.89   5 75.89.76
+  5 89.76   5 89.76.4   5 76.4   5 76.4.42   5 4.42   5 4.42.78   5 42.78
+  5 42.78.29   5 78.29   5 78.29.63   5 29.63   5 29.63.87   5 63.87
+  5 63.87.80   5 87.80   5 87.80.72   5 80.72   5 80.72.9   5 72.9
+  5 72.9.73   5 9.73   5 9.73.65   5 73.65   5 73.65.58   5 65.58
+  5 65.58.98   5 58.98   5 58.98.21   5 98.21   5 98.21.65   5 21.65
+  5 21.65.5   5 65.5   5 65.5.11   5 5.11   5 5.11.87   5 11.87   5 11.87.12
+  5 87.12   5 87.12.20   5 12.20   5 12.20.31   5 20.31   5 20.31.95
+  5 31.95   5 31.95.73   5 95.73   5 95.73.88   5 73.88   5 73.88.8   5 88.8
+  5 88.8.49   5 8.49   5 8.49.90   5 49.90   5 49.90.96   5 90.96
+  5 90.96.55   5 96.55   5 96.55.77   5 55.77   5 55.77.2   5 77.2
+  5 77.2.85   5 2.85   5 2.85.74   5 85.74   5 85.74.70   5 74.70
+  5 74.70.19   5 70.19   5 70.19.26   5 19.26   5 19.26.47   5 26.47
+  5 26.47.90   5 47.90   5 47.90.58   5 90.58   5 90.58.9   5 58.9
+  5 58.9.72   5 9.72   5 9.72.33   5 72.33   5 72.33.75   5 33.75
+  5 33.75.81   5 75.81   5 75.81.23   5 81.23   5 81.23.13   5 23.13
+  5 23.13.14   5 13.14   5 13.14.91   5 14.91   5 14.91.91   5 91.91
+  5 91.91.15   5 91.15   5 91.15.36   5 15.36   5 15.36.3   5 36.3
+  5 36.3.69   5 3.69   5 3.69.52   5 69.52   5 69.52.50   5 52.50
+  5 52.50.10   5 50.10   5 50.10.33   5 10.33   5 10.33.39   5 33.39
+  5 33.39.58   5 39.58   5 39.58.38   5 58.38   5 58.38.83   5 38.83
+  5 38.83.82   5 83.82   5 83.82.7}
+
+do_execsql_test 1.8.15.2 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE 0=1) OVER win FROM t2
+    WINDOW win AS (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW)
+} {1 {}   2 {}   3 {}   4 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}}
+
+do_execsql_test 1.8.15.3 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE 1=0) OVER win FROM t2
+    WINDOW win AS (PARTITION BY (a%10) ORDER BY a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW)
+} {1 {}   2 {}   3 {}   4 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   1 {}   2 {}
+  3 {}   4 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   1 {}   2 {}   3 {}   4 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   1 {}   2 {}   3 {}   4 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  1 {}   2 {}   3 {}   4 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   1 {}   2 {}   3 {}
+  4 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   1 {}   2 {}   3 {}   4 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   1 {}   2 {}   3 {}   4 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   1 {}
+  2 {}   3 {}   4 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   1 {}   2 {}   3 {}   4 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}}
+
+do_execsql_test 1.8.15.4 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE a%2=0) OVER win FROM t2
+    WINDOW win AS (PARTITION BY (a%10) ORDER BY a ROWS BETWEEN 4 PRECEDING    AND CURRENT ROW)
+} {1 89   2 89.6   3 89.6.29   4 89.6.29.47   5 89.6.29.47.59
+  5 6.29.47.59.28   5 29.47.59.28.75   5 47.59.28.75.78   5 59.28.75.78.72
+  5 28.75.78.72.98   5 75.78.72.98.87   5 78.72.98.87.73   5 72.98.87.73.96
+  5 98.87.73.96.74   5 87.73.96.74.90   5 73.96.74.90.75   5 96.74.90.75.91
+  5 74.90.75.91.69   5 90.75.91.69.39   5 75.91.69.39.7   1 {}   2 {}   3 {}
+  4 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   1 96   2 96.97   3 96.97.84
+  4 96.97.84.86   5 96.97.84.86.32   5 97.84.86.32.25   5 84.86.32.25.89
+  5 86.32.25.89.29   5 32.25.89.29.9   5 25.89.29.9.21   5 89.29.9.21.12
+  5 29.9.21.12.88   5 9.21.12.88.55   5 21.12.88.55.70   5 12.88.55.70.58
+  5 88.55.70.58.81   5 55.70.58.81.91   5 70.58.81.91.52   5 58.81.91.52.58
+  1 {}   2 {}   3 {}   4 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   1 38   2 38.46
+  3 38.46.23   4 38.46.23.61   5 38.46.23.61.3   5 46.23.61.3.1
+  5 23.61.3.1.76   5 61.3.1.76.63   5 3.1.76.63.73   5 1.76.63.73.65
+  5 76.63.73.65.20   5 63.73.65.20.8   5 73.65.20.8.77   5 65.20.8.77.19
+  5 20.8.77.19.9   5 8.77.19.9.23   5 77.19.9.23.15   5 19.9.23.15.50
+  5 9.23.15.50.38   1 {}   2 {}   3 {}   4 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  1 39   2 39.54   3 39.54.16   4 39.54.16.85   5 39.54.16.85.22
+  5 54.16.85.22.40   5 16.85.22.40.4   5 85.22.40.4.87   5 22.40.4.87.65
+  5 40.4.87.65.5   5 4.87.65.5.31   5 87.65.5.31.49   5 65.5.31.49.2
+  5 5.31.49.2.26   5 31.49.2.26.72   5 49.2.26.72.13   5 2.26.72.13.36
+  5 26.72.13.36.10   5 72.13.36.10.83   1 {}   2 {}   3 {}   4 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   1 91   2 91.8   3 91.8.65   4 91.8.65.85
+  5 91.8.65.85.55   5 8.65.85.55.56   5 65.85.55.56.42   5 85.55.56.42.80
+  5 55.56.42.80.58   5 56.42.80.58.11   5 42.80.58.11.95   5 80.58.11.95.90
+  5 58.11.95.90.85   5 11.95.90.85.47   5 95.90.85.47.33   5 90.85.47.33.14
+  5 85.47.33.14.3   5 47.33.14.3.33   5 33.14.3.33.82   1 {}   2 {}   3 {}
+  4 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}}
+
+do_execsql_test 1.9.2.1 {
+  SELECT max(b) OVER ( ORDER BY a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {89   81   96   59   38   68   39   62   91   46   6   99   97   27   46
+  78   54   97   8   67   29   93   84   77   23   16   16   93   65   35
+  47   7   86   74   61   91   85   24   85   43   59   12   32   56   3   91
+  22   90   55   15   28   89   25   47   1   56   40   43   56   16   75
+  36   89   98   76   81   4   94   42   30   78   33   29   53   63   2   87
+  37   80   84   72   41   9   61   73   95   65   13   58   96   98   1   21
+  74   65   35   5   73   11   51   87   41   12   8   20   31   31   15   95
+  22   73   79   88   34   8   11   49   34   90   59   96   60   55   75
+  77   44   2   7   85   57   74   29   70   59   19   39   26   26   47   80
+  90   36   58   47   9   72   72   66   33   93   75   64   81   9   23   37
+  13   12   14   62   91   36   91   33   15   34   36   99   3   95   69
+  58   52   30   50   84   10   84   33   21   39   44   58   30   38   34
+  83   27   82   17   7}
+
+do_execsql_test 1.9.2.2 {
+  SELECT min(b) OVER ( ORDER BY a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {89   81   96   59   38   68   39   62   91   46   6   99   97   27   46
+  78   54   97   8   67   29   93   84   77   23   16   16   93   65   35
+  47   7   86   74   61   91   85   24   85   43   59   12   32   56   3   91
+  22   90   55   15   28   89   25   47   1   56   40   43   56   16   75
+  36   89   98   76   81   4   94   42   30   78   33   29   53   63   2   87
+  37   80   84   72   41   9   61   73   95   65   13   58   96   98   1   21
+  74   65   35   5   73   11   51   87   41   12   8   20   31   31   15   95
+  22   73   79   88   34   8   11   49   34   90   59   96   60   55   75
+  77   44   2   7   85   57   74   29   70   59   19   39   26   26   47   80
+  90   36   58   47   9   72   72   66   33   93   75   64   81   9   23   37
+  13   12   14   62   91   36   91   33   15   34   36   99   3   95   69
+  58   52   30   50   84   10   84   33   21   39   44   58   30   38   34
+  83   27   82   17   7}
+
+do_execsql_test 1.9.3.1 {
+  SELECT row_number() OVER ( ORDER BY a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.9.3.2 {
+  SELECT row_number() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.9.3.3 {
+  SELECT row_number() OVER ( ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.9.4.1 {
+  SELECT dense_rank() OVER ( ORDER BY a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.9.4.2 {
+  SELECT dense_rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.9.4.3 {
+  SELECT dense_rank() OVER ( ORDER BY b ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {1   1   2   2   3   3   4   5   6   7   7   7   8   8   8   9   9   9   10
+  11   11   12   12   12   13   13   14   15   15   15   16   16   16   17
+  18   19   20   20   21   21   22   22   23   24   25   25   26   26   27
+  28   28   28   29   29   29   30   30   31   32   32   32   32   33   33
+  33   33   34   34   35   35   35   35   36   36   37   37   38   38   38
+  39   40   40   41   42   42   43   43   44   44   45   45   45   45   46
+  47   48   49   50   51   52   52   53   53   53   54   55   55   55   55
+  56   56   56   56   57   58   58   59   59   60   61   62   62   62   63
+  64   65   66   67   68   68   68   69   69   69   70   70   70   71   71
+  71   72   73   73   74   74   75   76   76   77   77   77   78   79   80
+  80   80   80   81   81   81   82   83   83   84   85   85   85   86   86
+  86   87   87   87   87   87   88   88   88   89   90   90   90   91   91
+  91   92   92   93   93   94   94}
+
+do_execsql_test 1.9.4.4 {
+  SELECT dense_rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {1   2   3   3   3   4   5   6   7   8   8   9   9   9   1   1   2   2   3
+  3   4   4   5   5   6   7   7   8   8   8   9   9   9   9   9   1   1   2
+  2   2   3   3   4   5   6   7   7   8   8   8   9   1   1   2   2   3   3
+  4   4   4   4   5   5   6   7   8   8   8   9   10   10   10   1   2   3
+  4   4   4   4   5   5   6   7   8   8   8   9   9   9   9   10   1   2   2
+  2   3   4   4   5   5   6   6   6   7   7   7   8   8   8   9   9   9   1
+  2   2   2   3   3   4   4   4   4   5   5   6   6   6   7   8   9   10   10
+  10   1   1   1   2   3   3   4   4   5   5   5   5   6   7   8   8   9   9
+  10   10   1   1   1   2   3   3   4   4   4   4   5   6   6   7   8   8   1
+  1   1   2   3   3   3   4   4   4   5   6   6   6   6   7   8   9   9   9
+  10   10}
+
+do_execsql_test 1.9.4.5 {
+  SELECT dense_rank() OVER ( ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   4   4   4   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5   5   5   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   6   6   6   6
+  6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   7   7
+  7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7
+  8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8
+  8   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   10   10
+  10   10   10   10   10   10   10   10   10   10   10   10   10   10   10
+  10   10   10   10   10}
+
+do_execsql_test 1.9.4.6 {
+  SELECT dense_rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   3   3   3   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   4   4   4   4   4   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   5   5   5   5   5   5
+  5   5   5   5   5   5   5   5   5   5   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5
+  5}
+
+do_execsql_test 1.9.5.1 {
+  SELECT rank() OVER ( ORDER BY a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.9.5.2 {
+  SELECT rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.9.5.3 {
+  SELECT rank() OVER ( ORDER BY b ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {1   1   3   3   5   5   7   8   9   10   10   10   13   13   13   16   16
+  16   19   20   20   22   22   22   25   25   27   28   28   28   31   31
+  31   34   35   36   37   37   39   39   41   41   43   44   45   45   47
+  47   49   50   50   50   53   53   53   56   56   58   59   59   59   59
+  63   63   63   63   67   67   69   69   69   69   73   73   75   75   77
+  77   77   80   81   81   83   84   84   86   86   88   88   90   90   90
+  90   94   95   96   97   98   99   100   100   102   102   102   105   106
+  106   106   106   110   110   110   110   114   115   115   117   117   119
+  120   121   121   121   124   125   126   127   128   129   129   129   132
+  132   132   135   135   135   138   138   138   141   142   142   144   144
+  146   147   147   149   149   149   152   153   154   154   154   154   158
+  158   158   161   162   162   164   165   165   165   168   168   168   171
+  171   171   171   171   176   176   176   179   180   180   180   183   183
+  183   186   186   188   188   190   190}
+
+do_execsql_test 1.9.5.4 {
+  SELECT rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {1   2   3   3   3   6   7   8   9   10   10   12   12   12   1   1   3   3
+  5   5   7   7   9   9   11   12   12   14   14   14   17   17   17   17
+  17   1   1   3   3   3   6   6   8   9   10   11   11   13   13   13   16
+  1   1   3   3   5   5   7   7   7   7   11   11   13   14   15   15   15
+  18   19   19   19   1   2   3   4   4   4   4   8   8   10   11   12   12
+  12   15   15   15   15   19   1   2   2   2   5   6   6   8   8   10   10
+  10   13   13   13   16   16   16   19   19   19   1   2   2   2   5   5   7
+  7   7   7   11   11   13   13   13   16   17   18   19   19   19   1   1
+  1   4   5   5   7   7   9   9   9   9   13   14   15   15   17   17   19
+  19   1   1   1   4   5   5   7   7   7   7   11   12   12   14   15   15
+  1   1   1   4   5   5   5   8   8   8   11   12   12   12   12   16   17
+  18   18   18   21   21}
+
+do_execsql_test 1.9.5.5 {
+  SELECT rank() OVER ( ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   15   15   15   15
+  15   15   15   15   15   15   15   15   15   15   15   15   15   15   15
+  15   15   36   36   36   36   36   36   36   36   36   36   36   36   36
+  36   36   36   52   52   52   52   52   52   52   52   52   52   52   52
+  52   52   52   52   52   52   52   52   52   73   73   73   73   73   73
+  73   73   73   73   73   73   73   73   73   73   73   73   73   92   92
+  92   92   92   92   92   92   92   92   92   92   92   92   92   92   92
+  92   92   92   92   113   113   113   113   113   113   113   113   113
+  113   113   113   113   113   113   113   113   113   113   113   113   134
+  134   134   134   134   134   134   134   134   134   134   134   134   134
+  134   134   134   134   134   134   154   154   154   154   154   154   154
+  154   154   154   154   154   154   154   154   154   170   170   170   170
+  170   170   170   170   170   170   170   170   170   170   170   170   170
+  170   170   170   170   170}
+
+do_execsql_test 1.9.5.6 {
+  SELECT rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   15   15   15   15
+  15   15   15   15   15   15   15   15   15   15   15   15   31   31   31
+  31   31   31   31   31   31   31   31   31   31   31   31   31   31   31
+  31   50   50   50   50   50   50   50   50   50   50   50   50   50   50
+  50   50   50   50   50   50   50   71   71   71   71   71   71   71   71
+  71   71   71   71   71   71   71   71   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   22   22   22   22   22   22
+  22   22   22   22   22   22   22   22   22   22   22   22   22   22   22
+  43   43   43   43   43   43   43   43   43   43   43   43   43   43   43
+  43   43   43   43   43   43   64   64   64   64   64   64   64   64   64
+  64   64   64   64   64   64   64   64   64   64   64   84   84   84   84
+  84   84   84   84   84   84   84   84   84   84   84   84   84   84   84
+  84   84   84}
+
+do_execsql_test 1.9.6.1 {
+  SELECT 
+      row_number() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ),
+      rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ),
+      dense_rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND CURRENT ROW )
+    FROM t2
+} {1 1 1   2 1 1   3 1 1   4 1 1   5 1 1   6 1 1   7 1 1   8 1 1   9 1 1
+  10 1 1   11 1 1   12 1 1   13 1 1   14 1 1   15 15 2   16 15 2   17 15 2
+  18 15 2   19 15 2   20 15 2   21 15 2   22 15 2   23 15 2   24 15 2
+  25 15 2   26 15 2   27 15 2   28 15 2   29 15 2   30 15 2   31 31 3
+  32 31 3   33 31 3   34 31 3   35 31 3   36 31 3   37 31 3   38 31 3
+  39 31 3   40 31 3   41 31 3   42 31 3   43 31 3   44 31 3   45 31 3
+  46 31 3   47 31 3   48 31 3   49 31 3   50 50 4   51 50 4   52 50 4
+  53 50 4   54 50 4   55 50 4   56 50 4   57 50 4   58 50 4   59 50 4
+  60 50 4   61 50 4   62 50 4   63 50 4   64 50 4   65 50 4   66 50 4
+  67 50 4   68 50 4   69 50 4   70 50 4   71 71 5   72 71 5   73 71 5
+  74 71 5   75 71 5   76 71 5   77 71 5   78 71 5   79 71 5   80 71 5
+  81 71 5   82 71 5   83 71 5   84 71 5   85 71 5   86 71 5   1 1 1   2 1 1
+  3 1 1   4 1 1   5 1 1   6 1 1   7 1 1   8 1 1   9 1 1   10 1 1   11 1 1
+  12 1 1   13 1 1   14 1 1   15 1 1   16 1 1   17 1 1   18 1 1   19 1 1
+  20 1 1   21 1 1   22 22 2   23 22 2   24 22 2   25 22 2   26 22 2   27 22 2
+  28 22 2   29 22 2   30 22 2   31 22 2   32 22 2   33 22 2   34 22 2
+  35 22 2   36 22 2   37 22 2   38 22 2   39 22 2   40 22 2   41 22 2
+  42 22 2   43 43 3   44 43 3   45 43 3   46 43 3   47 43 3   48 43 3
+  49 43 3   50 43 3   51 43 3   52 43 3   53 43 3   54 43 3   55 43 3
+  56 43 3   57 43 3   58 43 3   59 43 3   60 43 3   61 43 3   62 43 3
+  63 43 3   64 64 4   65 64 4   66 64 4   67 64 4   68 64 4   69 64 4
+  70 64 4   71 64 4   72 64 4   73 64 4   74 64 4   75 64 4   76 64 4
+  77 64 4   78 64 4   79 64 4   80 64 4   81 64 4   82 64 4   83 64 4
+  84 84 5   85 84 5   86 84 5   87 84 5   88 84 5   89 84 5   90 84 5
+  91 84 5   92 84 5   93 84 5   94 84 5   95 84 5   96 84 5   97 84 5
+  98 84 5   99 84 5   100 84 5   101 84 5   102 84 5   103 84 5   104 84 5
+  105 84 5}
+
+
+do_test 1.9.7.1 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0053 0.0105 0.0158 0.0211 0.0263 0.0316 0.0368 0.0421 0.0474 0.0526 0.0579 0.0632 0.0684 0.0737 0.0789 0.0842 0.0895 0.0947 0.1000 0.1053 0.1105 0.1158 0.1211 0.1263 0.1316 0.1368 0.1421 0.1474 0.1526 0.1579 0.1632 0.1684 0.1737 0.1789 0.1842 0.1895 0.1947 0.2000 0.2053 0.2105 0.2158 0.2211 0.2263 0.2316 0.2368 0.2421 0.2474 0.2526 0.2579 0.2632 0.2684 0.2737 0.2789 0.2842 0.2895 0.2947 0.3000 0.3053 0.3105 0.3158 0.3211 0.3263 0.3316 0.3368 0.3421 0.3474 0.3526 0.3579 0.3632 0.3684 0.3737 0.3789 0.3842 0.3895 0.3947 0.4000 0.4053 0.4105 0.4158 0.4211 0.4263 0.4316 0.4368 0.4421 0.4474 0.4526 0.4579 0.4632 0.4684 0.4737 0.4789 0.4842 0.4895 0.4947 0.5000 0.5053 0.5105 0.5158 0.5211 0.5263 0.5316 0.5368 0.5421 0.5474 0.5526 0.5579 0.5632 0.5684 0.5737 0.5789 0.5842 0.5895 0.5947 0.6000 0.6053 0.6105 0.6158 0.6211 0.6263 0.6316 0.6368 0.6421 0.6474 0.6526 0.6579 0.6632 0.6684 0.6737 0.6789 0.6842 0.6895 0.6947 0.7000 0.7053 0.7105 0.7158 0.7211 0.7263 0.7316 0.7368 0.7421 0.7474 0.7526 0.7579 0.7632 0.7684 0.7737 0.7789 0.7842 0.7895 0.7947 0.8000 0.8053 0.8105 0.8158 0.8211 0.8263 0.8316 0.8368 0.8421 0.8474 0.8526 0.8579 0.8632 0.8684 0.8737 0.8789 0.8842 0.8895 0.8947 0.9000 0.9053 0.9105 0.9158 0.9211 0.9263 0.9316 0.9368 0.9421 0.9474 0.9526 0.9579 0.9632 0.9684 0.9737 0.9789 0.9842 0.9895 0.9947 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.9.7.2 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0769 0.1538 0.2308 0.3077 0.3846 0.4615 0.5385 0.6154 0.6923 0.7692 0.8462 0.9231 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0667 0.1333 0.2000 0.2667 0.3333 0.4000 0.4667 0.5333 0.6000 0.6667 0.7333 0.8000 0.8667 0.9333 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0556 0.1111 0.1667 0.2222 0.2778 0.3333 0.3889 0.4444 0.5000 0.5556 0.6111 0.6667 0.7222 0.7778 0.8333 0.8889 0.9444 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0526 0.1053 0.1579 0.2105 0.2632 0.3158 0.3684 0.4211 0.4737 0.5263 0.5789 0.6316 0.6842 0.7368 0.7895 0.8421 0.8947 0.9474 1.0000 0.0000 0.0667 0.1333 0.2000 0.2667 0.3333 0.4000 0.4667 0.5333 0.6000 0.6667 0.7333 0.8000 0.8667 0.9333 1.0000 0.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.9.7.3 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY b ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0105 0.0105 0.0211 0.0211 0.0316 0.0368 0.0421 0.0474 0.0474 0.0474 0.0632 0.0632 0.0632 0.0789 0.0789 0.0789 0.0947 0.1000 0.1000 0.1105 0.1105 0.1105 0.1263 0.1263 0.1368 0.1421 0.1421 0.1421 0.1579 0.1579 0.1579 0.1737 0.1789 0.1842 0.1895 0.1895 0.2000 0.2000 0.2105 0.2105 0.2211 0.2263 0.2316 0.2316 0.2421 0.2421 0.2526 0.2579 0.2579 0.2579 0.2737 0.2737 0.2737 0.2895 0.2895 0.3000 0.3053 0.3053 0.3053 0.3053 0.3263 0.3263 0.3263 0.3263 0.3474 0.3474 0.3579 0.3579 0.3579 0.3579 0.3789 0.3789 0.3895 0.3895 0.4000 0.4000 0.4000 0.4158 0.4211 0.4211 0.4316 0.4368 0.4368 0.4474 0.4474 0.4579 0.4579 0.4684 0.4684 0.4684 0.4684 0.4895 0.4947 0.5000 0.5053 0.5105 0.5158 0.5211 0.5211 0.5316 0.5316 0.5316 0.5474 0.5526 0.5526 0.5526 0.5526 0.5737 0.5737 0.5737 0.5737 0.5947 0.6000 0.6000 0.6105 0.6105 0.6211 0.6263 0.6316 0.6316 0.6316 0.6474 0.6526 0.6579 0.6632 0.6684 0.6737 0.6737 0.6737 0.6895 0.6895 0.6895 0.7053 0.7053 0.7053 0.7211 0.7211 0.7211 0.7368 0.7421 0.7421 0.7526 0.7526 0.7632 0.7684 0.7684 0.7789 0.7789 0.7789 0.7947 0.8000 0.8053 0.8053 0.8053 0.8053 0.8263 0.8263 0.8263 0.8421 0.8474 0.8474 0.8579 0.8632 0.8632 0.8632 0.8789 0.8789 0.8789 0.8947 0.8947 0.8947 0.8947 0.8947 0.9211 0.9211 0.9211 0.9368 0.9421 0.9421 0.9421 0.9579 0.9579 0.9579 0.9737 0.9737 0.9842 0.9842 0.9947 0.9947}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.9.7.4 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0769 0.1538 0.1538 0.1538 0.3846 0.4615 0.5385 0.6154 0.6923 0.6923 0.8462 0.8462 0.8462 0.0000 0.0000 0.1000 0.1000 0.2000 0.2000 0.3000 0.3000 0.4000 0.4000 0.5000 0.5500 0.5500 0.6500 0.6500 0.6500 0.8000 0.8000 0.8000 0.8000 0.8000 0.0000 0.0000 0.1333 0.1333 0.1333 0.3333 0.3333 0.4667 0.5333 0.6000 0.6667 0.6667 0.8000 0.8000 0.8000 1.0000 0.0000 0.0000 0.1000 0.1000 0.2000 0.2000 0.3000 0.3000 0.3000 0.3000 0.5000 0.5000 0.6000 0.6500 0.7000 0.7000 0.7000 0.8500 0.9000 0.9000 0.9000 0.0000 0.0556 0.1111 0.1667 0.1667 0.1667 0.1667 0.3889 0.3889 0.5000 0.5556 0.6111 0.6111 0.6111 0.7778 0.7778 0.7778 0.7778 1.0000 0.0000 0.0500 0.0500 0.0500 0.2000 0.2500 0.2500 0.3500 0.3500 0.4500 0.4500 0.4500 0.6000 0.6000 0.6000 0.7500 0.7500 0.7500 0.9000 0.9000 0.9000 0.0000 0.0500 0.0500 0.0500 0.2000 0.2000 0.3000 0.3000 0.3000 0.3000 0.5000 0.5000 0.6000 0.6000 0.6000 0.7500 0.8000 0.8500 0.9000 0.9000 0.9000 0.0000 0.0000 0.0000 0.1579 0.2105 0.2105 0.3158 0.3158 0.4211 0.4211 0.4211 0.4211 0.6316 0.6842 0.7368 0.7368 0.8421 0.8421 0.9474 0.9474 0.0000 0.0000 0.0000 0.2000 0.2667 0.2667 0.4000 0.4000 0.4000 0.4000 0.6667 0.7333 0.7333 0.8667 0.9333 0.9333 0.0000 0.0000 0.0000 0.1429 0.1905 0.1905 0.1905 0.3333 0.3333 0.3333 0.4762 0.5238 0.5238 0.5238 0.5238 0.7143 0.7619 0.8095 0.8095 0.8095 0.9524 0.9524}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.9.7.5 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.9.7.6 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER (PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND CURRENT ROW) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.9.8.1 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0052 0.0105 0.0157 0.0209 0.0262 0.0314 0.0366 0.0419 0.0471 0.0524 0.0576 0.0628 0.0681 0.0733 0.0785 0.0838 0.0890 0.0942 0.0995 0.1047 0.1099 0.1152 0.1204 0.1257 0.1309 0.1361 0.1414 0.1466 0.1518 0.1571 0.1623 0.1675 0.1728 0.1780 0.1832 0.1885 0.1937 0.1990 0.2042 0.2094 0.2147 0.2199 0.2251 0.2304 0.2356 0.2408 0.2461 0.2513 0.2565 0.2618 0.2670 0.2723 0.2775 0.2827 0.2880 0.2932 0.2984 0.3037 0.3089 0.3141 0.3194 0.3246 0.3298 0.3351 0.3403 0.3455 0.3508 0.3560 0.3613 0.3665 0.3717 0.3770 0.3822 0.3874 0.3927 0.3979 0.4031 0.4084 0.4136 0.4188 0.4241 0.4293 0.4346 0.4398 0.4450 0.4503 0.4555 0.4607 0.4660 0.4712 0.4764 0.4817 0.4869 0.4921 0.4974 0.5026 0.5079 0.5131 0.5183 0.5236 0.5288 0.5340 0.5393 0.5445 0.5497 0.5550 0.5602 0.5654 0.5707 0.5759 0.5812 0.5864 0.5916 0.5969 0.6021 0.6073 0.6126 0.6178 0.6230 0.6283 0.6335 0.6387 0.6440 0.6492 0.6545 0.6597 0.6649 0.6702 0.6754 0.6806 0.6859 0.6911 0.6963 0.7016 0.7068 0.7120 0.7173 0.7225 0.7277 0.7330 0.7382 0.7435 0.7487 0.7539 0.7592 0.7644 0.7696 0.7749 0.7801 0.7853 0.7906 0.7958 0.8010 0.8063 0.8115 0.8168 0.8220 0.8272 0.8325 0.8377 0.8429 0.8482 0.8534 0.8586 0.8639 0.8691 0.8743 0.8796 0.8848 0.8901 0.8953 0.9005 0.9058 0.9110 0.9162 0.9215 0.9267 0.9319 0.9372 0.9424 0.9476 0.9529 0.9581 0.9634 0.9686 0.9738 0.9791 0.9843 0.9895 0.9948 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.9.8.2 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0714 0.1429 0.2143 0.2857 0.3571 0.4286 0.5000 0.5714 0.6429 0.7143 0.7857 0.8571 0.9286 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0625 0.1250 0.1875 0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250 0.6875 0.7500 0.8125 0.8750 0.9375 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0526 0.1053 0.1579 0.2105 0.2632 0.3158 0.3684 0.4211 0.4737 0.5263 0.5789 0.6316 0.6842 0.7368 0.7895 0.8421 0.8947 0.9474 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0625 0.1250 0.1875 0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250 0.6875 0.7500 0.8125 0.8750 0.9375 1.0000 0.0455 0.0909 0.1364 0.1818 0.2273 0.2727 0.3182 0.3636 0.4091 0.4545 0.5000 0.5455 0.5909 0.6364 0.6818 0.7273 0.7727 0.8182 0.8636 0.9091 0.9545 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.9.8.3 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY b ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0105 0.0105 0.0209 0.0209 0.0314 0.0314 0.0366 0.0419 0.0471 0.0628 0.0628 0.0628 0.0785 0.0785 0.0785 0.0942 0.0942 0.0942 0.0995 0.1099 0.1099 0.1257 0.1257 0.1257 0.1361 0.1361 0.1414 0.1571 0.1571 0.1571 0.1728 0.1728 0.1728 0.1780 0.1832 0.1885 0.1990 0.1990 0.2094 0.2094 0.2199 0.2199 0.2251 0.2304 0.2408 0.2408 0.2513 0.2513 0.2565 0.2723 0.2723 0.2723 0.2880 0.2880 0.2880 0.2984 0.2984 0.3037 0.3246 0.3246 0.3246 0.3246 0.3455 0.3455 0.3455 0.3455 0.3560 0.3560 0.3770 0.3770 0.3770 0.3770 0.3874 0.3874 0.3979 0.3979 0.4136 0.4136 0.4136 0.4188 0.4293 0.4293 0.4346 0.4450 0.4450 0.4555 0.4555 0.4660 0.4660 0.4869 0.4869 0.4869 0.4869 0.4921 0.4974 0.5026 0.5079 0.5131 0.5183 0.5288 0.5288 0.5445 0.5445 0.5445 0.5497 0.5707 0.5707 0.5707 0.5707 0.5916 0.5916 0.5916 0.5916 0.5969 0.6073 0.6073 0.6178 0.6178 0.6230 0.6283 0.6440 0.6440 0.6440 0.6492 0.6545 0.6597 0.6649 0.6702 0.6859 0.6859 0.6859 0.7016 0.7016 0.7016 0.7173 0.7173 0.7173 0.7330 0.7330 0.7330 0.7382 0.7487 0.7487 0.7592 0.7592 0.7644 0.7749 0.7749 0.7906 0.7906 0.7906 0.7958 0.8010 0.8220 0.8220 0.8220 0.8220 0.8377 0.8377 0.8377 0.8429 0.8534 0.8534 0.8586 0.8743 0.8743 0.8743 0.8901 0.8901 0.8901 0.9162 0.9162 0.9162 0.9162 0.9162 0.9319 0.9319 0.9319 0.9372 0.9529 0.9529 0.9529 0.9686 0.9686 0.9686 0.9791 0.9791 0.9895 0.9895 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.9.8.4 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0714 0.1429 0.3571 0.3571 0.3571 0.4286 0.5000 0.5714 0.6429 0.7857 0.7857 1.0000 1.0000 1.0000 0.0952 0.0952 0.1905 0.1905 0.2857 0.2857 0.3810 0.3810 0.4762 0.4762 0.5238 0.6190 0.6190 0.7619 0.7619 0.7619 1.0000 1.0000 1.0000 1.0000 1.0000 0.1250 0.1250 0.3125 0.3125 0.3125 0.4375 0.4375 0.5000 0.5625 0.6250 0.7500 0.7500 0.9375 0.9375 0.9375 1.0000 0.0952 0.0952 0.1905 0.1905 0.2857 0.2857 0.4762 0.4762 0.4762 0.4762 0.5714 0.5714 0.6190 0.6667 0.8095 0.8095 0.8095 0.8571 1.0000 1.0000 1.0000 0.0526 0.1053 0.1579 0.3684 0.3684 0.3684 0.3684 0.4737 0.4737 0.5263 0.5789 0.7368 0.7368 0.7368 0.9474 0.9474 0.9474 0.9474 1.0000 0.0476 0.1905 0.1905 0.1905 0.2381 0.3333 0.3333 0.4286 0.4286 0.5714 0.5714 0.5714 0.7143 0.7143 0.7143 0.8571 0.8571 0.8571 1.0000 1.0000 1.0000 0.0476 0.1905 0.1905 0.1905 0.2857 0.2857 0.4762 0.4762 0.4762 0.4762 0.5714 0.5714 0.7143 0.7143 0.7143 0.7619 0.8095 0.8571 1.0000 1.0000 1.0000 0.1500 0.1500 0.1500 0.2000 0.3000 0.3000 0.4000 0.4000 0.6000 0.6000 0.6000 0.6000 0.6500 0.7000 0.8000 0.8000 0.9000 0.9000 1.0000 1.0000 0.1875 0.1875 0.1875 0.2500 0.3750 0.3750 0.6250 0.6250 0.6250 0.6250 0.6875 0.8125 0.8125 0.8750 1.0000 1.0000 0.1364 0.1364 0.1364 0.1818 0.3182 0.3182 0.3182 0.4545 0.4545 0.4545 0.5000 0.6818 0.6818 0.6818 0.6818 0.7273 0.7727 0.9091 0.9091 0.9091 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.9.8.5 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.9.8.6 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.9.8.1 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(100) OVER ( ORDER BY a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 88.0000 89.0000 89.0000 90.0000 90.0000 91.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.9.8.2 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(101) OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 22.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.9.8.3 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(102) OVER ( ORDER BY b,a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 88.0000 89.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.9.8.4 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(103) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 22.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.9.8.5 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(104) OVER ( ORDER BY b%10,a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000 103.0000 104.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.9.8.6 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(105) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND CURRENT ROW) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.9.8.7 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(105) OVER ( ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 88.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000 103.0000 104.0000 105.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+do_execsql_test 1.9.9.1 {
+  SELECT last_value(a+b) OVER ( ORDER BY a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {99   92   108   72   52   83   55   79   109   65   26   120   119   50
+  70   103   80   124   36   96   59   124   116   110   57   51   52   130
+  103   74   87   48   128   117   105   136   131   71   133   92   109   63
+  84   109   57   146   78   147   113   74   88   150   87   110   65   121
+  106   110   124   85   145   107   161   171   150   156   80   171   120
+  109   158   114   111   136   147   87   173   124   168   173   162   132
+  101   154   167   190   161   110   156   195   198   102   123   177   169
+  140   111   180   119   160   197   152   124   121   134   146   147   132
+  213   141   193   200   210   157   132   136   175   161   218   188   226
+  191   187   208   211   179   138   144   223   196   214   170   212   202
+  163   184   172   173   195   229   240   187   210   200   163   227   228
+  223   191   252   235   225   243   172   187   202   179   179   182   231
+  261   207   263   206   189   209   212   276   181   274   249   239   234
+  213   234   269   196   271   221   210   229   235   250   223   232   229
+  279   224   280   216   207}
+
+do_execsql_test 1.9.9.2 {
+  SELECT last_value(a+b) OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {147   106   109   168   134   218   191   212   229   240   213   234   196
+  223   92   109   105   136   146   65   156   132   154   102   123   119
+  160   152   146   147   136   243   261   263   210   79   63   84   78
+  120   87   162   124   141   138   227   228   179   231   234   280   124
+  57   130   92   57   110   114   136   147   167   110   180   193   191
+  252   187   179   206   181   221   279   80   116   117   71   80   171
+  173   177   157   161   179   214   225   182   209   269   271   235   229
+  103   74   131   133   113   74   87   145   190   161   169   140   111
+  132   213   187   208   223   235   189   274   108   65   26   70   51
+  52   128   109   121   124   85   107   150   195   226   172   173   187
+  223   207   212   119   50   124   96   110   87   48   110   173   124
+  197   211   144   196   195   200   202   224   216   207   52   83   103
+  36   88   171   158   156   198   121   210   132   210   239   250   232
+  99   72   55   120   59   109   150   161   111   101   200   175   188
+  170   202   163   184   163   172   276   249   229}
+
+do_execsql_test 1.9.9.3 {
+  SELECT last_value(a+b) OVER ( ORDER BY b,a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {65   102   87   138   57   181   80   111   26   48   144   207   36   121
+  132   101   163   172   196   119   136   63   124   179   110   179   182
+  74   132   189   51   52   85   216   163   134   123   210   78   141   57
+  187   71   87   172   173   50   224   88   59   111   170   109   213
+  223   146   147   84   114   191   206   221   157   161   209   229   74
+  140   107   187   207   212   124   202   52   232   55   184   229   106
+  132   152   120   92   110   179   235   65   70   87   110   195   200
+  175   234   160   234   136   80   113   187   109   121   124   196   156
+  210   239   250   72   109   188   202   191   105   154   79   231   147
+  225   103   161   169   223   96   83   249   212   162   227   228   167
+  180   193   117   177   214   145   208   235   150   110   211   103   158
+  200   168   229   92   156   243   280   279   116   173   269   271   131
+  133   223   128   173   197   210   99   150   161   147   218   240   109
+  136   146   261   263   124   130   252   171   190   213   274   108   195
+  226   119   124   171   198   120   276}
+
+do_execsql_test 1.9.9.4 {
+  SELECT last_value(a+b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {196   134   109   213   223   106   234   191   212   168   229   147   218
+  240   65   102   119   136   123   210   146   147   132   152   160   105
+  154   92   156   243   109   136   146   261   263   87   138   63   124
+  179   78   141   84   120   234   79   231   162   227   228   280   57
+  181   110   179   57   187   114   191   206   221   92   110   136   147
+  167   180   193   279   124   130   252   80   182   71   157   161   209
+  229   179   235   80   225   117   177   214   116   173   269   271   171
+  111   74   132   189   87   74   140   113   187   103   161   169   145
+  208   235   131   133   223   190   213   274   26   51   52   85   172
+  173   107   187   207   212   65   70   109   121   124   223   150   128
+  108   195   226   48   144   207   216   50   224   124   202   87   110
+  195   200   196   96   110   211   173   197   119   124   36   121   132
+  88   52   232   156   210   239   250   83   103   158   210   171   198
+  101   163   172   163   59   111   170   55   184   229   175   72   109
+  188   202   249   200   99   150   161   120   276}
+
+do_execsql_test 1.9.9.5 {
+  SELECT last_value(a+b) OVER ( ORDER BY b%10,a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {147   106   109   168   134   218   191   212   229   240   213   234   196
+  223   92   109   105   136   146   65   156   132   154   102   123   119
+  160   152   146   147   136   243   261   263   210   79   63   84   78
+  120   87   162   124   141   138   227   228   179   231   234   280   124
+  57   130   92   57   110   114   136   147   167   110   180   193   191
+  252   187   179   206   181   221   279   80   116   117   71   80   171
+  173   177   157   161   179   214   225   182   209   269   271   235   229
+  103   74   131   133   113   74   87   145   190   161   169   140   111
+  132   213   187   208   223   235   189   274   108   65   26   70   51
+  52   128   109   121   124   85   107   150   195   226   172   173   187
+  223   207   212   119   50   124   96   110   87   48   110   173   124
+  197   211   144   196   195   200   202   224   216   207   52   83   103
+  36   88   171   158   156   198   121   210   132   210   239   250   232
+  99   72   55   120   59   109   150   161   111   101   200   175   188
+  170   202   163   184   163   172   276   249   229}
+
+do_execsql_test 1.9.9.6 {
+  SELECT last_value(a+b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND CURRENT ROW) FROM t2
+} {108   52   83   79   65   26   70   103   80   36   116   51   52   128
+  117   71   63   84   109   78   147   88   121   106   124   85   107   171
+  150   80   171   120   109   158   87   168   173   162   156   195   198
+  177   124   121   134   141   210   157   132   161   218   226   191   179
+  138   214   212   172   173   229   240   187   210   227   228   223   225
+  179   182   231   207   209   212   239   234   213   234   269   196   271
+  235   250   223   232   229   280   99   92   72   55   109   120   119
+  50   124   96   59   124   110   57   130   103   74   87   48   105   136
+  131   133   92   109   57   146   113   74   150   87   110   65   110
+  145   161   156   114   111   136   147   173   124   132   101   154   167
+  190   161   110   102   123   169   140   111   180   119   160   197   152
+  146   147   132   213   193   200   136   175   188   187   208   211   144
+  223   196   170   202   163   184   195   200   163   191   252   235   243
+  172   187   202   179   261   263   206   189   276   181   274   249   221
+  210   229   279   224   216   207}
+
+do_execsql_test 1.9.10.1 {
+  SELECT nth_value(b,b+1) OVER (ORDER BY a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.9.10.2 {
+  SELECT nth_value(b,b+1) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.9.10.3 {
+  SELECT nth_value(b,b+1) OVER ( ORDER BY b,a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.9.10.4 {
+  SELECT nth_value(b,b+1) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.9.10.5 {
+  SELECT nth_value(b,b+1) OVER ( ORDER BY b%10,a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.9.10.6 {
+  SELECT nth_value(b,b+1) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.9.11.1 {
+  SELECT first_value(b) OVER (ORDER BY a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW) FROM t2
+} {89   81   96   59   38   68   39   62   91   46   6   99   97   27   46
+  78   54   97   8   67   29   93   84   77   23   16   16   93   65   35
+  47   7   86   74   61   91   85   24   85   43   59   12   32   56   3   91
+  22   90   55   15   28   89   25   47   1   56   40   43   56   16   75
+  36   89   98   76   81   4   94   42   30   78   33   29   53   63   2   87
+  37   80   84   72   41   9   61   73   95   65   13   58   96   98   1   21
+  74   65   35   5   73   11   51   87   41   12   8   20   31   31   15   95
+  22   73   79   88   34   8   11   49   34   90   59   96   60   55   75
+  77   44   2   7   85   57   74   29   70   59   19   39   26   26   47   80
+  90   36   58   47   9   72   72   66   33   93   75   64   81   9   23   37
+  13   12   14   62   91   36   91   33   15   34   36   99   3   95   69
+  58   52   30   50   84   10   84   33   21   39   44   58   30   38   34
+  83   27   82   17   7}
+
+do_execsql_test 1.9.11.2 {
+  SELECT first_value(b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW) FROM t2
+} {90   40   30   80   20   90   60   70   80   90   30   50   10   30   81
+  91   61   91   91   1   81   41   61   1   21   11   51   41   31   31   11
+  81   91   91   21   62   12   32   22   42   2   72   12   22   2   72   72
+  12   62   52   82   93   23   93   43   3   43   33   53   63   73   13
+  73   73   33   93   23   13   33   3   33   83   54   84   74   24   4   94
+  84   74   34   34   44   74   64   14   34   84   84   44   34   65   35
+  85   85   55   15   25   75   95   65   65   35   5   15   95   55   75
+  85   75   15   95   96   46   6   46   16   16   86   56   56   56   16
+  36   76   96   96   26   26   36   66   36   36   97   27   97   67   77
+  47   7   47   87   37   87   77   7   57   47   47   37   27   17   7   38
+  68   78   8   28   98   78   58   98   8   88   8   58   58   58   38   89
+  59   39   99   29   59   89   89   29   9   79   49   59   29   59   19
+  39   9   9   99   69   39}
+
+do_execsql_test 1.9.11.3 {
+  SELECT first_value(b) OVER ( ORDER BY b,a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {1   1   2   2   3   3   4   5   6   7   7   7   8   8   8   9   9   9   10
+  11   11   12   12   12   13   13   14   15   15   15   16   16   16   17
+  19   20   21   21   22   22   23   23   24   25   26   26   27   27   28
+  29   29   29   30   30   30   31   31   32   33   33   33   33   34   34
+  34   34   35   35   36   36   36   36   37   37   38   38   39   39   39
+  40   41   41   42   43   43   44   44   46   46   47   47   47   47   49
+  50   51   52   53   54   55   55   56   56   56   57   58   58   58   58
+  59   59   59   59   60   61   61   62   62   63   64   65   65   65   66
+  67   68   69   70   72   72   72   73   73   73   74   74   74   75   75
+  75   76   77   77   78   78   79   80   80   81   81   81   82   83   84
+  84   84   84   85   85   85   86   87   87   88   89   89   89   90   90
+  90   91   91   91   91   91   93   93   93   94   95   95   95   96   96
+  96   97   97   98   98   99   99}
+
+do_execsql_test 1.9.11.4 {
+  SELECT first_value(b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {10   20   30   30   30   40   50   60   70   80   80   90   90   90   1   1
+  11   11   21   21   31   31   41   41   51   61   61   81   81   81   91
+  91   91   91   91   2   2   12   12   12   22   22   32   42   52   62   62
+  72   72   72   82   3   3   13   13   23   23   33   33   33   33   43   43
+  53   63   73   73   73   83   93   93   93   4   14   24   34   34   34
+  34   44   44   54   64   74   74   74   84   84   84   84   94   5   15
+  15   15   25   35   35   55   55   65   65   65   75   75   75   85   85
+  85   95   95   95   6   16   16   16   26   26   36   36   36   36   46
+  46   56   56   56   66   76   86   96   96   96   7   7   7   17   27   27
+  37   37   47   47   47   47   57   67   77   77   87   87   97   97   8   8
+  8   28   38   38   58   58   58   58   68   78   78   88   98   98   9   9
+  9   19   29   29   29   39   39   39   49   59   59   59   59   69   79
+  89   89   89   99   99}
+
+do_execsql_test 1.9.11.5 {
+  SELECT first_value(b) OVER ( ORDER BY b%10,a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {90   40   30   80   20   90   60   70   80   90   30   50   10   30   81
+  91   61   91   91   1   81   41   61   1   21   11   51   41   31   31   11
+  81   91   91   21   62   12   32   22   42   2   72   12   22   2   72   72
+  12   62   52   82   93   23   93   43   3   43   33   53   63   73   13
+  73   73   33   93   23   13   33   3   33   83   54   84   74   24   4   94
+  84   74   34   34   44   74   64   14   34   84   84   44   34   65   35
+  85   85   55   15   25   75   95   65   65   35   5   15   95   55   75
+  85   75   15   95   96   46   6   46   16   16   86   56   56   56   16
+  36   76   96   96   26   26   36   66   36   36   97   27   97   67   77
+  47   7   47   87   37   87   77   7   57   47   47   37   27   17   7   38
+  68   78   8   28   98   78   58   98   8   88   8   58   58   58   38   89
+  59   39   99   29   59   89   89   29   9   79   49   59   29   59   19
+  39   9   9   99   69   39}
+
+do_execsql_test 1.9.11.6 {
+  SELECT first_value(b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND CURRENT ROW) FROM t2
+} {96   38   68   62   46   6   46   78   54   8   84   16   16   86   74   24
+  12   32   56   22   90   28   56   40   56   16   36   98   76   4   94
+  42   30   78   2   80   84   72   58   96   98   74   12   8   20   22   88
+  34   8   34   90   96   60   44   2   74   70   26   26   80   90   36   58
+  72   72   66   64   12   14   62   36   34   36   58   52   30   50   84
+  10   84   44   58   30   38   34   82   89   81   59   39   91   99   97
+  27   97   67   29   93   77   23   93   65   35   47   7   61   91   85
+  85   43   59   3   91   55   15   89   25   47   1   43   75   89   81   33
+  29   53   63   87   37   41   9   61   73   95   65   13   1   21   65   35
+  5   73   11   51   87   41   31   31   15   95   73   79   11   49   59
+  55   75   77   7   85   57   29   59   19   39   47   47   9   33   93   75
+  81   9   23   37   13   91   91   33   15   99   3   95   69   33   21   39
+  83   27   17   7}
+
+do_execsql_test 1.9.12.1 {
+  SELECT lead(b,b) OVER (ORDER BY a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW) FROM t2
+} {96   9   11   89   32   53   91   30   51   56   54   73   22   59   75
+  74   78   8   16   65   15   8   31   87   90   12   32   96   74   76   37
+  85   90   15   35   2   60   36   75   9   51   47   63   51   90   26   42
+  26   8   76   80   90   37   87   56   79   5   87   8   2   39   73   64
+  36   90   72   78   36   73   51   33   20   41   2   26   37   33   8   14
+  33   81   55   1   9   12   39   64   87   72   34   82   21   34   99   62
+  74   41   69   22   75   27   58   8   79   77   26   26   55   {}   29
+  30   7   {}   66   55   2   34   64   {}   33   {}   44   84   {}   {}   95
+  85   19   {}   83   {}   91   {}   {}   9   50   91   33   34   {}   {}
+  84   {}   7   9   {}   {}   {}   44   {}   {}   {}   {}   91   84   {}   95
+  95   52   {}   {}   {}   {}   {}   21   {}   {}   {}   58   {}   {}   {}
+  {}   {}   {}   {}   83   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}}
+
+do_execsql_test 1.9.12.2 {
+  SELECT lead(b,b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   81   {}   {}   {}   21   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   62   {}   {}   {}   12   {}   {}   {}   72
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   53   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   34   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   95   {}   {}   {}   {}   {}   {}   85   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   56   {}   36   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   57   {}   {}   {}   {}   {}   7   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   8   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.9.12.3 {
+  SELECT lead(b,b) OVER ( ORDER BY b,a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {1   2   3   3   5   6   7   8   8   9   9   10   11   12   12   13   13
+  14   15   16   16   17   19   20   21   22   23   24   25   26   27   27
+  28   29   30   31   32   33   33   33   34   34   35   36   36   36   37
+  38   39   39   40   41   42   43   43   44   46   47   47   47   49   50
+  52   53   54   55   56   56   57   58   58   58   59   59   59   60   61
+  62   62   64   65   65   67   69   70   72   72   73   74   74   75   75
+  75   77   78   80   81   81   83   84   84   85   85   85   87   88   89
+  89   89   90   90   91   91   91   93   93   94   95   95   96   97   97
+  98   99   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.9.12.4 {
+  SELECT lead(b,b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {80   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   1
+  11   81   81   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   12   12   72   82   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   13   23   73   73   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   34   84   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   35   85   85   95   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   36   86   96   96   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   37   47
+  47   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   58   58   68   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   39   49   59   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.9.12.5 {
+  SELECT lead(b,b) OVER ( ORDER BY b%10,a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {34   72   91   74   21   55   23   94   84   95   2   13   61   22   55
+  55   94   85   75   81   65   73   74   21   72   12   94   33   63   73
+  72   96   36   76   3   25   62   3   73   34   12   46   43   93   72   16
+  86   63   15   65   36   77   24   57   25   53   95   34   95   16   97
+  74   97   67   25   98   44   34   65   54   5   68   96   28   47   95
+  34   39   8   38   6   46   96   28   47   95   56   39   99   97   76   8
+  26   9   79   27   95   16   29   {}   58   58   77   85   56   {}   98
+  29   {}   19   96   {}   {}   78   56   98   36   97   {}   89   89   29
+  47   78   {}   {}   {}   38   68   58   {}   58   38   {}   98   {}   {}
+  {}   39   57   9   {}   79   {}   {}   7   {}   {}   {}   9   29   38   78
+  {}   {}   {}   8   39   {}   {}   {}   {}   59   {}   99   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.9.12.6 {
+  SELECT lead(b,b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.9.13.1 {
+  SELECT lag(b,b) OVER (ORDER BY a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   38   {}   {}   {}   {}
+  {}   {}   {}   6   {}   {}   {}   {}   {}   81   46   6   {}   {}   {}   {}
+  23   {}   {}   {}   {}   {}   27   {}   {}   {}   35   6   {}   12   {}
+  23   {}   {}   61   84   {}   93   39   47   {}   54   46   96   56   {}
+  16   {}   {}   {}   {}   89   {}   16   43   {}   85   56   29   99   53
+  {}   59   {}   {}   91   59   53   84   99   {}   93   63   47   {}   {}
+  98   33   67   35   75   1   23   13   55   27   75   98   35   73   63   2
+  21   27   13   24   86   23   84   31   20   94   61   65   75   23   36
+  94   55   90   41   77   96   56   29   40   12   89   63   11   5   73
+  79   1   16   28   31   73   5   39   53   63   41   11   40   2   13   33
+  9   29   90   47   72   9   73   30   44   33   74   93   29   74   42   34
+  63   41   34   96   47   77   1   36   74   72   14   36   26   77   9   72
+  64   8   91   31   52   30}
+
+do_execsql_test 1.9.13.2 {
+  SELECT lag(b,b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   61   {}   81   {}   {}   {}   {}
+  1   {}   {}   {}   {}   {}   {}   {}   {}   {}   22   {}   {}   {}   12
+  {}   {}   62   {}   {}   {}   {}   {}   {}   {}   23   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   43   {}   23   {}   {}   {}   {}   {}
+  {}   54   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   75   {}
+  {}   {}   {}   {}   {}   55   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   47   {}   {}   {}   {}
+  {}   27   7   {}   {}   {}   {}   {}   {}   {}   {}   {}   68   {}   8   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   89   {}   {}
+  {}   {}   {}   {}   {}   29   9   {}   {}   {}}
+
+do_execsql_test 1.9.13.3 {
+  SELECT lag(b,b) OVER ( ORDER BY b,a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {{}   1   1   1   1   2   2   2   2   2   2   3   3   3   4   4   5   6   6
+  6   7   7   7   7   7   8   8   8   8   8   8   9   9   9   9   9   9   9
+  9   9   9   10   10   10   10   11   11   11   11   11   12   12   12   12
+  13   13   13   13   13   14   15   15   15   15   16   16   16   16   16
+  17   19   20   20   21   21   21   21   22   22   22   22   23   23   23
+  23   23   24   23   24   24   25   26   26   26   26   26   26   26   26
+  26   26   26   27   27   27   27   28   29   29   29   29   30   30   30
+  30   30   30   31   31   31   31   31   32   32   32   32   32   32   31
+  32   33   33   33   33   33   33   34   34   34   34   34   34   34   34
+  35   35   35   35   35   36   36   36   36   36   36   36   37   37   37
+  38   38   38   38   38   38   39   39   39   39   40   40   41   41   42
+  43   42   43   43   43   43   44   44   44   46   46   46   47   47   47
+  47   47}
+
+do_execsql_test 1.9.13.4 {
+  SELECT lag(b,b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  1   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.9.13.5 {
+  SELECT lag(b,b) OVER ( ORDER BY b%10,a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   61   80   81   {}   {}   {}   {}
+  1   {}   {}   {}   30   {}   21   90   61   {}   22   {}   11   41   12
+  {}   {}   62   {}   {}   {}   {}   31   {}   50   23   30   21   90   {}
+  {}   62   {}   {}   81   {}   22   43   62   23   32   {}   91   {}   90
+  93   54   {}   {}   90   72   12   22   90   81   83   23   80   20   72
+  43   51   33   80   90   2   34   54   1   20   62   12   13   75   44   30
+  93   91   1   21   55   61   61   13   85   3   65   65   91   73   33   93
+  55   84   62   31   11   65   35   85   33   55   15   12   75   22   3
+  73   65   36   85   43   95   43   13   47   44   65   65   96   36   27
+  7   46   34   94   47   36   73   34   35   73   68   24   8   75   85   75
+  66   34   95   36   84   77   46   34   84   47   89   65   36   16   38
+  76   58   57   29   9   44   56   17}
+
+do_execsql_test 1.9.13.6 {
+  SELECT lag(b,b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.9.14.1 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (ORDER BY a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW) FROM t2
+} {89   81   96   59   38   68   39   62   91   46   6   99   97   27   46
+  78   54   97   8   67   29   93   84   77   23   16   16   93   65   35
+  47   7   86   74   61   91   85   24   85   43   59   12   32   56   3   91
+  22   90   55   15   28   89   25   47   1   56   40   43   56   16   75
+  36   89   98   76   81   4   94   42   30   78   33   29   53   63   2   87
+  37   80   84   72   41   9   61   73   95   65   13   58   96   98   1   21
+  74   65   35   5   73   11   51   87   41   12   8   20   31   31   15   95
+  22   73   79   88   34   8   11   49   34   90   59   96   60   55   75
+  77   44   2   7   85   57   74   29   70   59   19   39   26   26   47   80
+  90   36   58   47   9   72   72   66   33   93   75   64   81   9   23   37
+  13   12   14   62   91   36   91   33   15   34   36   99   3   95   69
+  58   52   30   50   84   10   84   33   21   39   44   58   30   38   34
+  83   27   82   17   7}
+
+do_execsql_test 1.9.14.2 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW) FROM t2
+} {90   40   30   80   20   90   60   70   80   90   30   50   10   30   81
+  91   61   91   91   1   81   41   61   1   21   11   51   41   31   31   11
+  81   91   91   21   62   12   32   22   42   2   72   12   22   2   72   72
+  12   62   52   82   93   23   93   43   3   43   33   53   63   73   13
+  73   73   33   93   23   13   33   3   33   83   54   84   74   24   4   94
+  84   74   34   34   44   74   64   14   34   84   84   44   34   65   35
+  85   85   55   15   25   75   95   65   65   35   5   15   95   55   75
+  85   75   15   95   96   46   6   46   16   16   86   56   56   56   16
+  36   76   96   96   26   26   36   66   36   36   97   27   97   67   77
+  47   7   47   87   37   87   77   7   57   47   47   37   27   17   7   38
+  68   78   8   28   98   78   58   98   8   88   8   58   58   58   38   89
+  59   39   99   29   59   89   89   29   9   79   49   59   29   59   19
+  39   9   9   99   69   39}
+
+do_execsql_test 1.9.14.3 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( ORDER BY b,a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {1   1   2   2   3   3   4   5   6   7   7   7   8   8   8   9   9   9   10
+  11   11   12   12   12   13   13   14   15   15   15   16   16   16   17
+  19   20   21   21   22   22   23   23   24   25   26   26   27   27   28
+  29   29   29   30   30   30   31   31   32   33   33   33   33   34   34
+  34   34   35   35   36   36   36   36   37   37   38   38   39   39   39
+  40   41   41   42   43   43   44   44   46   46   47   47   47   47   49
+  50   51   52   53   54   55   55   56   56   56   57   58   58   58   58
+  59   59   59   59   60   61   61   62   62   63   64   65   65   65   66
+  67   68   69   70   72   72   72   73   73   73   74   74   74   75   75
+  75   76   77   77   78   78   79   80   80   81   81   81   82   83   84
+  84   84   84   85   85   85   86   87   87   88   89   89   89   90   90
+  90   91   91   91   91   91   93   93   93   94   95   95   95   96   96
+  96   97   97   98   98   99   99}
+
+do_execsql_test 1.9.14.4 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {10   20   30   30   30   40   50   60   70   80   80   90   90   90   1   1
+  11   11   21   21   31   31   41   41   51   61   61   81   81   81   91
+  91   91   91   91   2   2   12   12   12   22   22   32   42   52   62   62
+  72   72   72   82   3   3   13   13   23   23   33   33   33   33   43   43
+  53   63   73   73   73   83   93   93   93   4   14   24   34   34   34
+  34   44   44   54   64   74   74   74   84   84   84   84   94   5   15
+  15   15   25   35   35   55   55   65   65   65   75   75   75   85   85
+  85   95   95   95   6   16   16   16   26   26   36   36   36   36   46
+  46   56   56   56   66   76   86   96   96   96   7   7   7   17   27   27
+  37   37   47   47   47   47   57   67   77   77   87   87   97   97   8   8
+  8   28   38   38   58   58   58   58   68   78   78   88   98   98   9   9
+  9   19   29   29   29   39   39   39   49   59   59   59   59   69   79
+  89   89   89   99   99}
+
+do_execsql_test 1.9.14.5 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( ORDER BY b%10,a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW ) FROM t2
+} {90   40   30   80   20   90   60   70   80   90   30   50   10   30   81
+  91   61   91   91   1   81   41   61   1   21   11   51   41   31   31   11
+  81   91   91   21   62   12   32   22   42   2   72   12   22   2   72   72
+  12   62   52   82   93   23   93   43   3   43   33   53   63   73   13
+  73   73   33   93   23   13   33   3   33   83   54   84   74   24   4   94
+  84   74   34   34   44   74   64   14   34   84   84   44   34   65   35
+  85   85   55   15   25   75   95   65   65   35   5   15   95   55   75
+  85   75   15   95   96   46   6   46   16   16   86   56   56   56   16
+  36   76   96   96   26   26   36   66   36   36   97   27   97   67   77
+  47   7   47   87   37   87   77   7   57   47   47   37   27   17   7   38
+  68   78   8   28   98   78   58   98   8   88   8   58   58   58   38   89
+  59   39   99   29   59   89   89   29   9   79   49   59   29   59   19
+  39   9   9   99   69   39}
+
+do_execsql_test 1.9.14.6 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND CURRENT ROW) FROM t2
+} {96   38   68   62   46   6   46   78   54   8   84   16   16   86   74   24
+  12   32   56   22   90   28   56   40   56   16   36   98   76   4   94
+  42   30   78   2   80   84   72   58   96   98   74   12   8   20   22   88
+  34   8   34   90   96   60   44   2   74   70   26   26   80   90   36   58
+  72   72   66   64   12   14   62   36   34   36   58   52   30   50   84
+  10   84   44   58   30   38   34   82   89   81   59   39   91   99   97
+  27   97   67   29   93   77   23   93   65   35   47   7   61   91   85
+  85   43   59   3   91   55   15   89   25   47   1   43   75   89   81   33
+  29   53   63   87   37   41   9   61   73   95   65   13   1   21   65   35
+  5   73   11   51   87   41   31   31   15   95   73   79   11   49   59
+  55   75   77   7   85   57   29   59   19   39   47   47   9   33   93   75
+  81   9   23   37   13   91   91   33   15   99   3   95   69   33   21   39
+  83   27   17   7}
+
+do_execsql_test 1.9.14.7 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (win1 ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND CURRENT ROW) 
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a)
+    ORDER BY 1
+} {1   1   10   11   11   12   12   12   13   13   14   15   15   15   16   16
+  16   17   19   2   2   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   3   3   30   30   30   31   31   32   33   33
+  33   33   34   34   34   34   35   35   36   36   36   36   37   37   38
+  38   39   39   39   4   40   41   41   42   43   43   44   44   46   46
+  47   47   47   47   49   5   50   51   52   53   54   55   55   56   56
+  56   57   58   58   58   58   59   59   59   59   6   60   61   61   62
+  62   63   64   65   65   65   66   67   68   69   7   7   7   70   72   72
+  72   73   73   73   74   74   74   75   75   75   76   77   77   78   78
+  79   8   8   8   80   80   81   81   81   82   83   84   84   84   84   85
+  85   85   86   87   87   88   89   89   89   9   9   9   90   90   90   91
+  91   91   91   91   93   93   93   94   95   95   95   96   96   96   97
+  97   98   98   99   99}
+
+do_execsql_test 1.9.14.8 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (win1 ROWS BETWEEN CURRENT ROW         AND CURRENT ROW) 
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a ORDER BY b%10)
+    ORDER BY 1
+} {1   1   10   11   11   12   12   12   13   13   14   15   15   15   16   16
+  16   17   19   2   2   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   3   3   30   30   30   31   31   32   33   33
+  33   33   34   34   34   34   35   35   36   36   36   36   37   37   38
+  38   39   39   39   4   40   41   41   42   43   43   44   44   46   46
+  47   47   47   47   49   5   50   51   52   53   54   55   55   56   56
+  56   57   58   58   58   58   59   59   59   59   6   60   61   61   62
+  62   63   64   65   65   65   66   67   68   69   7   7   7   70   72   72
+  72   73   73   73   74   74   74   75   75   75   76   77   77   78   78
+  79   8   8   8   80   80   81   81   81   82   83   84   84   84   84   85
+  85   85   86   87   87   88   89   89   89   9   9   9   90   90   90   91
+  91   91   91   91   93   93   93   94   95   95   95   96   96   96   97
+  97   98   98   99   99}
+
+do_execsql_test 1.9.14.9 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER win2
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a ORDER BY b%10),
+           win2 AS (win1 ROWS BETWEEN CURRENT ROW         AND CURRENT ROW)
+    ORDER BY 1
+} {1   1   10   11   11   12   12   12   13   13   14   15   15   15   16   16
+  16   17   19   2   2   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   3   3   30   30   30   31   31   32   33   33
+  33   33   34   34   34   34   35   35   36   36   36   36   37   37   38
+  38   39   39   39   4   40   41   41   42   43   43   44   44   46   46
+  47   47   47   47   49   5   50   51   52   53   54   55   55   56   56
+  56   57   58   58   58   58   59   59   59   59   6   60   61   61   62
+  62   63   64   65   65   65   66   67   68   69   7   7   7   70   72   72
+  72   73   73   73   74   74   74   75   75   75   76   77   77   78   78
+  79   8   8   8   80   80   81   81   81   82   83   84   84   84   84   85
+  85   85   86   87   87   88   89   89   89   9   9   9   90   90   90   91
+  91   91   91   91   93   93   93   94   95   95   95   96   96   96   97
+  97   98   98   99   99}
+
+do_execsql_test 1.9.15.1 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE a%2=0) OVER win FROM t2
+    WINDOW win AS (ORDER BY a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW)
+} {1 89   1 {}   1 96   1 {}   1 38   1 {}   1 39   1 {}   1 91   1 {}   1 6
+  1 {}   1 97   1 {}   1 46   1 {}   1 54   1 {}   1 8   1 {}   1 29   1 {}
+  1 84   1 {}   1 23   1 {}   1 16   1 {}   1 65   1 {}   1 47   1 {}   1 86
+  1 {}   1 61   1 {}   1 85   1 {}   1 85   1 {}   1 59   1 {}   1 32   1 {}
+  1 3   1 {}   1 22   1 {}   1 55   1 {}   1 28   1 {}   1 25   1 {}   1 1
+  1 {}   1 40   1 {}   1 56   1 {}   1 75   1 {}   1 89   1 {}   1 76   1 {}
+  1 4   1 {}   1 42   1 {}   1 78   1 {}   1 29   1 {}   1 63   1 {}   1 87
+  1 {}   1 80   1 {}   1 72   1 {}   1 9   1 {}   1 73   1 {}   1 65   1 {}
+  1 58   1 {}   1 98   1 {}   1 21   1 {}   1 65   1 {}   1 5   1 {}   1 11
+  1 {}   1 87   1 {}   1 12   1 {}   1 20   1 {}   1 31   1 {}   1 95   1 {}
+  1 73   1 {}   1 88   1 {}   1 8   1 {}   1 49   1 {}   1 90   1 {}   1 96
+  1 {}   1 55   1 {}   1 77   1 {}   1 2   1 {}   1 85   1 {}   1 74   1 {}
+  1 70   1 {}   1 19   1 {}   1 26   1 {}   1 47   1 {}   1 90   1 {}   1 58
+  1 {}   1 9   1 {}   1 72   1 {}   1 33   1 {}   1 75   1 {}   1 81   1 {}
+  1 23   1 {}   1 13   1 {}   1 14   1 {}   1 91   1 {}   1 91   1 {}   1 15
+  1 {}   1 36   1 {}   1 3   1 {}   1 69   1 {}   1 52   1 {}   1 50   1 {}
+  1 10   1 {}   1 33   1 {}   1 39   1 {}   1 58   1 {}   1 38   1 {}   1 83
+  1 {}   1 82   1 {}   1 7}
+
+do_execsql_test 1.9.15.2 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE 0=1) OVER win FROM t2
+    WINDOW win AS (ORDER BY a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW)
+} {1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}}
+
+do_execsql_test 1.9.15.3 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE 1=0) OVER win FROM t2
+    WINDOW win AS (PARTITION BY (a%10) ORDER BY a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW)
+} {1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}}
+
+do_execsql_test 1.9.15.4 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE a%2=0) OVER win FROM t2
+    WINDOW win AS (PARTITION BY (a%10) ORDER BY a ROWS BETWEEN CURRENT ROW         AND CURRENT ROW)
+} {1 89   1 6   1 29   1 47   1 59   1 28   1 75   1 78   1 72   1 98   1 87
+  1 73   1 96   1 74   1 90   1 75   1 91   1 69   1 39   1 7   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 96   1 97   1 84   1 86   1 32
+  1 25   1 89   1 29   1 9   1 21   1 12   1 88   1 55   1 70   1 58   1 81
+  1 91   1 52   1 58   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 38   1 46   1 23   1 61   1 3   1 1   1 76   1 63   1 73   1 65   1 20
+  1 8   1 77   1 19   1 9   1 23   1 15   1 50   1 38   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 39   1 54   1 16   1 85   1 22   1 40
+  1 4   1 87   1 65   1 5   1 31   1 49   1 2   1 26   1 72   1 13   1 36
+  1 10   1 83   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 91
+  1 8   1 65   1 85   1 55   1 56   1 42   1 80   1 58   1 11   1 95   1 90
+  1 85   1 47   1 33   1 14   1 3   1 33   1 82   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}   1 {}
+  1 {}   1 {}   1 {}   1 {}}
+
+do_execsql_test 1.10.2.1 {
+  SELECT max(b) OVER ( ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2
+} {96   96   96   96   96   96   96   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99}
+
+do_execsql_test 1.10.2.2 {
+  SELECT min(b) OVER ( ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2
+} {38   38   38   38   38   38   6   6   6   6   6   6   6   6   6   6   6   6
+  6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6
+  6   6   6   3   3   3   3   3   3   3   3   3   3   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1}
+
+do_execsql_test 1.10.3.1 {
+  SELECT row_number() OVER ( ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.10.3.2 {
+  SELECT row_number() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.10.3.3 {
+  SELECT row_number() OVER ( ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.10.4.1 {
+  SELECT dense_rank() OVER ( ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.10.4.2 {
+  SELECT dense_rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.10.4.3 {
+  SELECT dense_rank() OVER ( ORDER BY b ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2
+} {1   1   2   2   3   3   4   5   6   7   7   7   8   8   8   9   9   9   10
+  11   11   12   12   12   13   13   14   15   15   15   16   16   16   17
+  18   19   20   20   21   21   22   22   23   24   25   25   26   26   27
+  28   28   28   29   29   29   30   30   31   32   32   32   32   33   33
+  33   33   34   34   35   35   35   35   36   36   37   37   38   38   38
+  39   40   40   41   42   42   43   43   44   44   45   45   45   45   46
+  47   48   49   50   51   52   52   53   53   53   54   55   55   55   55
+  56   56   56   56   57   58   58   59   59   60   61   62   62   62   63
+  64   65   66   67   68   68   68   69   69   69   70   70   70   71   71
+  71   72   73   73   74   74   75   76   76   77   77   77   78   79   80
+  80   80   80   81   81   81   82   83   83   84   85   85   85   86   86
+  86   87   87   87   87   87   88   88   88   89   90   90   90   91   91
+  91   92   92   93   93   94   94}
+
+do_execsql_test 1.10.4.4 {
+  SELECT dense_rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2
+} {1   2   3   3   3   4   5   6   7   8   8   9   9   9   1   1   2   2   3
+  3   4   4   5   5   6   7   7   8   8   8   9   9   9   9   9   1   1   2
+  2   2   3   3   4   5   6   7   7   8   8   8   9   1   1   2   2   3   3
+  4   4   4   4   5   5   6   7   8   8   8   9   10   10   10   1   2   3
+  4   4   4   4   5   5   6   7   8   8   8   9   9   9   9   10   1   2   2
+  2   3   4   4   5   5   6   6   6   7   7   7   8   8   8   9   9   9   1
+  2   2   2   3   3   4   4   4   4   5   5   6   6   6   7   8   9   10   10
+  10   1   1   1   2   3   3   4   4   5   5   5   5   6   7   8   8   9   9
+  10   10   1   1   1   2   3   3   4   4   4   4   5   6   6   7   8   8   1
+  1   1   2   3   3   3   4   4   4   5   6   6   6   6   7   8   9   9   9
+  10   10}
+
+do_execsql_test 1.10.4.5 {
+  SELECT dense_rank() OVER ( ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   4   4   4   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5   5   5   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   6   6   6   6
+  6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   7   7
+  7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7
+  8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8
+  8   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   10   10
+  10   10   10   10   10   10   10   10   10   10   10   10   10   10   10
+  10   10   10   10   10}
+
+do_execsql_test 1.10.4.6 {
+  SELECT dense_rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   3   3   3   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   4   4   4   4   4   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   5   5   5   5   5   5
+  5   5   5   5   5   5   5   5   5   5   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5
+  5}
+
+do_execsql_test 1.10.5.1 {
+  SELECT rank() OVER ( ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.10.5.2 {
+  SELECT rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.10.5.3 {
+  SELECT rank() OVER ( ORDER BY b ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2
+} {1   1   3   3   5   5   7   8   9   10   10   10   13   13   13   16   16
+  16   19   20   20   22   22   22   25   25   27   28   28   28   31   31
+  31   34   35   36   37   37   39   39   41   41   43   44   45   45   47
+  47   49   50   50   50   53   53   53   56   56   58   59   59   59   59
+  63   63   63   63   67   67   69   69   69   69   73   73   75   75   77
+  77   77   80   81   81   83   84   84   86   86   88   88   90   90   90
+  90   94   95   96   97   98   99   100   100   102   102   102   105   106
+  106   106   106   110   110   110   110   114   115   115   117   117   119
+  120   121   121   121   124   125   126   127   128   129   129   129   132
+  132   132   135   135   135   138   138   138   141   142   142   144   144
+  146   147   147   149   149   149   152   153   154   154   154   154   158
+  158   158   161   162   162   164   165   165   165   168   168   168   171
+  171   171   171   171   176   176   176   179   180   180   180   183   183
+  183   186   186   188   188   190   190}
+
+do_execsql_test 1.10.5.4 {
+  SELECT rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2
+} {1   2   3   3   3   6   7   8   9   10   10   12   12   12   1   1   3   3
+  5   5   7   7   9   9   11   12   12   14   14   14   17   17   17   17
+  17   1   1   3   3   3   6   6   8   9   10   11   11   13   13   13   16
+  1   1   3   3   5   5   7   7   7   7   11   11   13   14   15   15   15
+  18   19   19   19   1   2   3   4   4   4   4   8   8   10   11   12   12
+  12   15   15   15   15   19   1   2   2   2   5   6   6   8   8   10   10
+  10   13   13   13   16   16   16   19   19   19   1   2   2   2   5   5   7
+  7   7   7   11   11   13   13   13   16   17   18   19   19   19   1   1
+  1   4   5   5   7   7   9   9   9   9   13   14   15   15   17   17   19
+  19   1   1   1   4   5   5   7   7   7   7   11   12   12   14   15   15
+  1   1   1   4   5   5   5   8   8   8   11   12   12   12   12   16   17
+  18   18   18   21   21}
+
+do_execsql_test 1.10.5.5 {
+  SELECT rank() OVER ( ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   15   15   15   15
+  15   15   15   15   15   15   15   15   15   15   15   15   15   15   15
+  15   15   36   36   36   36   36   36   36   36   36   36   36   36   36
+  36   36   36   52   52   52   52   52   52   52   52   52   52   52   52
+  52   52   52   52   52   52   52   52   52   73   73   73   73   73   73
+  73   73   73   73   73   73   73   73   73   73   73   73   73   92   92
+  92   92   92   92   92   92   92   92   92   92   92   92   92   92   92
+  92   92   92   92   113   113   113   113   113   113   113   113   113
+  113   113   113   113   113   113   113   113   113   113   113   113   134
+  134   134   134   134   134   134   134   134   134   134   134   134   134
+  134   134   134   134   134   134   154   154   154   154   154   154   154
+  154   154   154   154   154   154   154   154   154   170   170   170   170
+  170   170   170   170   170   170   170   170   170   170   170   170   170
+  170   170   170   170   170}
+
+do_execsql_test 1.10.5.6 {
+  SELECT rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   15   15   15   15
+  15   15   15   15   15   15   15   15   15   15   15   15   31   31   31
+  31   31   31   31   31   31   31   31   31   31   31   31   31   31   31
+  31   50   50   50   50   50   50   50   50   50   50   50   50   50   50
+  50   50   50   50   50   50   50   71   71   71   71   71   71   71   71
+  71   71   71   71   71   71   71   71   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   22   22   22   22   22   22
+  22   22   22   22   22   22   22   22   22   22   22   22   22   22   22
+  43   43   43   43   43   43   43   43   43   43   43   43   43   43   43
+  43   43   43   43   43   43   64   64   64   64   64   64   64   64   64
+  64   64   64   64   64   64   64   64   64   64   64   84   84   84   84
+  84   84   84   84   84   84   84   84   84   84   84   84   84   84   84
+  84   84   84}
+
+do_execsql_test 1.10.6.1 {
+  SELECT 
+      row_number() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ),
+      rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ),
+      dense_rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING )
+    FROM t2
+} {1 1 1   2 1 1   3 1 1   4 1 1   5 1 1   6 1 1   7 1 1   8 1 1   9 1 1
+  10 1 1   11 1 1   12 1 1   13 1 1   14 1 1   15 15 2   16 15 2   17 15 2
+  18 15 2   19 15 2   20 15 2   21 15 2   22 15 2   23 15 2   24 15 2
+  25 15 2   26 15 2   27 15 2   28 15 2   29 15 2   30 15 2   31 31 3
+  32 31 3   33 31 3   34 31 3   35 31 3   36 31 3   37 31 3   38 31 3
+  39 31 3   40 31 3   41 31 3   42 31 3   43 31 3   44 31 3   45 31 3
+  46 31 3   47 31 3   48 31 3   49 31 3   50 50 4   51 50 4   52 50 4
+  53 50 4   54 50 4   55 50 4   56 50 4   57 50 4   58 50 4   59 50 4
+  60 50 4   61 50 4   62 50 4   63 50 4   64 50 4   65 50 4   66 50 4
+  67 50 4   68 50 4   69 50 4   70 50 4   71 71 5   72 71 5   73 71 5
+  74 71 5   75 71 5   76 71 5   77 71 5   78 71 5   79 71 5   80 71 5
+  81 71 5   82 71 5   83 71 5   84 71 5   85 71 5   86 71 5   1 1 1   2 1 1
+  3 1 1   4 1 1   5 1 1   6 1 1   7 1 1   8 1 1   9 1 1   10 1 1   11 1 1
+  12 1 1   13 1 1   14 1 1   15 1 1   16 1 1   17 1 1   18 1 1   19 1 1
+  20 1 1   21 1 1   22 22 2   23 22 2   24 22 2   25 22 2   26 22 2   27 22 2
+  28 22 2   29 22 2   30 22 2   31 22 2   32 22 2   33 22 2   34 22 2
+  35 22 2   36 22 2   37 22 2   38 22 2   39 22 2   40 22 2   41 22 2
+  42 22 2   43 43 3   44 43 3   45 43 3   46 43 3   47 43 3   48 43 3
+  49 43 3   50 43 3   51 43 3   52 43 3   53 43 3   54 43 3   55 43 3
+  56 43 3   57 43 3   58 43 3   59 43 3   60 43 3   61 43 3   62 43 3
+  63 43 3   64 64 4   65 64 4   66 64 4   67 64 4   68 64 4   69 64 4
+  70 64 4   71 64 4   72 64 4   73 64 4   74 64 4   75 64 4   76 64 4
+  77 64 4   78 64 4   79 64 4   80 64 4   81 64 4   82 64 4   83 64 4
+  84 84 5   85 84 5   86 84 5   87 84 5   88 84 5   89 84 5   90 84 5
+  91 84 5   92 84 5   93 84 5   94 84 5   95 84 5   96 84 5   97 84 5
+  98 84 5   99 84 5   100 84 5   101 84 5   102 84 5   103 84 5   104 84 5
+  105 84 5}
+
+
+do_test 1.10.7.1 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0053 0.0105 0.0158 0.0211 0.0263 0.0316 0.0368 0.0421 0.0474 0.0526 0.0579 0.0632 0.0684 0.0737 0.0789 0.0842 0.0895 0.0947 0.1000 0.1053 0.1105 0.1158 0.1211 0.1263 0.1316 0.1368 0.1421 0.1474 0.1526 0.1579 0.1632 0.1684 0.1737 0.1789 0.1842 0.1895 0.1947 0.2000 0.2053 0.2105 0.2158 0.2211 0.2263 0.2316 0.2368 0.2421 0.2474 0.2526 0.2579 0.2632 0.2684 0.2737 0.2789 0.2842 0.2895 0.2947 0.3000 0.3053 0.3105 0.3158 0.3211 0.3263 0.3316 0.3368 0.3421 0.3474 0.3526 0.3579 0.3632 0.3684 0.3737 0.3789 0.3842 0.3895 0.3947 0.4000 0.4053 0.4105 0.4158 0.4211 0.4263 0.4316 0.4368 0.4421 0.4474 0.4526 0.4579 0.4632 0.4684 0.4737 0.4789 0.4842 0.4895 0.4947 0.5000 0.5053 0.5105 0.5158 0.5211 0.5263 0.5316 0.5368 0.5421 0.5474 0.5526 0.5579 0.5632 0.5684 0.5737 0.5789 0.5842 0.5895 0.5947 0.6000 0.6053 0.6105 0.6158 0.6211 0.6263 0.6316 0.6368 0.6421 0.6474 0.6526 0.6579 0.6632 0.6684 0.6737 0.6789 0.6842 0.6895 0.6947 0.7000 0.7053 0.7105 0.7158 0.7211 0.7263 0.7316 0.7368 0.7421 0.7474 0.7526 0.7579 0.7632 0.7684 0.7737 0.7789 0.7842 0.7895 0.7947 0.8000 0.8053 0.8105 0.8158 0.8211 0.8263 0.8316 0.8368 0.8421 0.8474 0.8526 0.8579 0.8632 0.8684 0.8737 0.8789 0.8842 0.8895 0.8947 0.9000 0.9053 0.9105 0.9158 0.9211 0.9263 0.9316 0.9368 0.9421 0.9474 0.9526 0.9579 0.9632 0.9684 0.9737 0.9789 0.9842 0.9895 0.9947 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.10.7.2 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0769 0.1538 0.2308 0.3077 0.3846 0.4615 0.5385 0.6154 0.6923 0.7692 0.8462 0.9231 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0667 0.1333 0.2000 0.2667 0.3333 0.4000 0.4667 0.5333 0.6000 0.6667 0.7333 0.8000 0.8667 0.9333 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0556 0.1111 0.1667 0.2222 0.2778 0.3333 0.3889 0.4444 0.5000 0.5556 0.6111 0.6667 0.7222 0.7778 0.8333 0.8889 0.9444 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0526 0.1053 0.1579 0.2105 0.2632 0.3158 0.3684 0.4211 0.4737 0.5263 0.5789 0.6316 0.6842 0.7368 0.7895 0.8421 0.8947 0.9474 1.0000 0.0000 0.0667 0.1333 0.2000 0.2667 0.3333 0.4000 0.4667 0.5333 0.6000 0.6667 0.7333 0.8000 0.8667 0.9333 1.0000 0.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.10.7.3 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY b ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0105 0.0105 0.0211 0.0211 0.0316 0.0368 0.0421 0.0474 0.0474 0.0474 0.0632 0.0632 0.0632 0.0789 0.0789 0.0789 0.0947 0.1000 0.1000 0.1105 0.1105 0.1105 0.1263 0.1263 0.1368 0.1421 0.1421 0.1421 0.1579 0.1579 0.1579 0.1737 0.1789 0.1842 0.1895 0.1895 0.2000 0.2000 0.2105 0.2105 0.2211 0.2263 0.2316 0.2316 0.2421 0.2421 0.2526 0.2579 0.2579 0.2579 0.2737 0.2737 0.2737 0.2895 0.2895 0.3000 0.3053 0.3053 0.3053 0.3053 0.3263 0.3263 0.3263 0.3263 0.3474 0.3474 0.3579 0.3579 0.3579 0.3579 0.3789 0.3789 0.3895 0.3895 0.4000 0.4000 0.4000 0.4158 0.4211 0.4211 0.4316 0.4368 0.4368 0.4474 0.4474 0.4579 0.4579 0.4684 0.4684 0.4684 0.4684 0.4895 0.4947 0.5000 0.5053 0.5105 0.5158 0.5211 0.5211 0.5316 0.5316 0.5316 0.5474 0.5526 0.5526 0.5526 0.5526 0.5737 0.5737 0.5737 0.5737 0.5947 0.6000 0.6000 0.6105 0.6105 0.6211 0.6263 0.6316 0.6316 0.6316 0.6474 0.6526 0.6579 0.6632 0.6684 0.6737 0.6737 0.6737 0.6895 0.6895 0.6895 0.7053 0.7053 0.7053 0.7211 0.7211 0.7211 0.7368 0.7421 0.7421 0.7526 0.7526 0.7632 0.7684 0.7684 0.7789 0.7789 0.7789 0.7947 0.8000 0.8053 0.8053 0.8053 0.8053 0.8263 0.8263 0.8263 0.8421 0.8474 0.8474 0.8579 0.8632 0.8632 0.8632 0.8789 0.8789 0.8789 0.8947 0.8947 0.8947 0.8947 0.8947 0.9211 0.9211 0.9211 0.9368 0.9421 0.9421 0.9421 0.9579 0.9579 0.9579 0.9737 0.9737 0.9842 0.9842 0.9947 0.9947}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.10.7.4 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0769 0.1538 0.1538 0.1538 0.3846 0.4615 0.5385 0.6154 0.6923 0.6923 0.8462 0.8462 0.8462 0.0000 0.0000 0.1000 0.1000 0.2000 0.2000 0.3000 0.3000 0.4000 0.4000 0.5000 0.5500 0.5500 0.6500 0.6500 0.6500 0.8000 0.8000 0.8000 0.8000 0.8000 0.0000 0.0000 0.1333 0.1333 0.1333 0.3333 0.3333 0.4667 0.5333 0.6000 0.6667 0.6667 0.8000 0.8000 0.8000 1.0000 0.0000 0.0000 0.1000 0.1000 0.2000 0.2000 0.3000 0.3000 0.3000 0.3000 0.5000 0.5000 0.6000 0.6500 0.7000 0.7000 0.7000 0.8500 0.9000 0.9000 0.9000 0.0000 0.0556 0.1111 0.1667 0.1667 0.1667 0.1667 0.3889 0.3889 0.5000 0.5556 0.6111 0.6111 0.6111 0.7778 0.7778 0.7778 0.7778 1.0000 0.0000 0.0500 0.0500 0.0500 0.2000 0.2500 0.2500 0.3500 0.3500 0.4500 0.4500 0.4500 0.6000 0.6000 0.6000 0.7500 0.7500 0.7500 0.9000 0.9000 0.9000 0.0000 0.0500 0.0500 0.0500 0.2000 0.2000 0.3000 0.3000 0.3000 0.3000 0.5000 0.5000 0.6000 0.6000 0.6000 0.7500 0.8000 0.8500 0.9000 0.9000 0.9000 0.0000 0.0000 0.0000 0.1579 0.2105 0.2105 0.3158 0.3158 0.4211 0.4211 0.4211 0.4211 0.6316 0.6842 0.7368 0.7368 0.8421 0.8421 0.9474 0.9474 0.0000 0.0000 0.0000 0.2000 0.2667 0.2667 0.4000 0.4000 0.4000 0.4000 0.6667 0.7333 0.7333 0.8667 0.9333 0.9333 0.0000 0.0000 0.0000 0.1429 0.1905 0.1905 0.1905 0.3333 0.3333 0.3333 0.4762 0.5238 0.5238 0.5238 0.5238 0.7143 0.7619 0.8095 0.8095 0.8095 0.9524 0.9524}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.10.7.5 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.10.7.6 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER (PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.10.8.1 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0052 0.0105 0.0157 0.0209 0.0262 0.0314 0.0366 0.0419 0.0471 0.0524 0.0576 0.0628 0.0681 0.0733 0.0785 0.0838 0.0890 0.0942 0.0995 0.1047 0.1099 0.1152 0.1204 0.1257 0.1309 0.1361 0.1414 0.1466 0.1518 0.1571 0.1623 0.1675 0.1728 0.1780 0.1832 0.1885 0.1937 0.1990 0.2042 0.2094 0.2147 0.2199 0.2251 0.2304 0.2356 0.2408 0.2461 0.2513 0.2565 0.2618 0.2670 0.2723 0.2775 0.2827 0.2880 0.2932 0.2984 0.3037 0.3089 0.3141 0.3194 0.3246 0.3298 0.3351 0.3403 0.3455 0.3508 0.3560 0.3613 0.3665 0.3717 0.3770 0.3822 0.3874 0.3927 0.3979 0.4031 0.4084 0.4136 0.4188 0.4241 0.4293 0.4346 0.4398 0.4450 0.4503 0.4555 0.4607 0.4660 0.4712 0.4764 0.4817 0.4869 0.4921 0.4974 0.5026 0.5079 0.5131 0.5183 0.5236 0.5288 0.5340 0.5393 0.5445 0.5497 0.5550 0.5602 0.5654 0.5707 0.5759 0.5812 0.5864 0.5916 0.5969 0.6021 0.6073 0.6126 0.6178 0.6230 0.6283 0.6335 0.6387 0.6440 0.6492 0.6545 0.6597 0.6649 0.6702 0.6754 0.6806 0.6859 0.6911 0.6963 0.7016 0.7068 0.7120 0.7173 0.7225 0.7277 0.7330 0.7382 0.7435 0.7487 0.7539 0.7592 0.7644 0.7696 0.7749 0.7801 0.7853 0.7906 0.7958 0.8010 0.8063 0.8115 0.8168 0.8220 0.8272 0.8325 0.8377 0.8429 0.8482 0.8534 0.8586 0.8639 0.8691 0.8743 0.8796 0.8848 0.8901 0.8953 0.9005 0.9058 0.9110 0.9162 0.9215 0.9267 0.9319 0.9372 0.9424 0.9476 0.9529 0.9581 0.9634 0.9686 0.9738 0.9791 0.9843 0.9895 0.9948 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.10.8.2 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0714 0.1429 0.2143 0.2857 0.3571 0.4286 0.5000 0.5714 0.6429 0.7143 0.7857 0.8571 0.9286 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0625 0.1250 0.1875 0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250 0.6875 0.7500 0.8125 0.8750 0.9375 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0526 0.1053 0.1579 0.2105 0.2632 0.3158 0.3684 0.4211 0.4737 0.5263 0.5789 0.6316 0.6842 0.7368 0.7895 0.8421 0.8947 0.9474 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0625 0.1250 0.1875 0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250 0.6875 0.7500 0.8125 0.8750 0.9375 1.0000 0.0455 0.0909 0.1364 0.1818 0.2273 0.2727 0.3182 0.3636 0.4091 0.4545 0.5000 0.5455 0.5909 0.6364 0.6818 0.7273 0.7727 0.8182 0.8636 0.9091 0.9545 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.10.8.3 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY b ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0105 0.0105 0.0209 0.0209 0.0314 0.0314 0.0366 0.0419 0.0471 0.0628 0.0628 0.0628 0.0785 0.0785 0.0785 0.0942 0.0942 0.0942 0.0995 0.1099 0.1099 0.1257 0.1257 0.1257 0.1361 0.1361 0.1414 0.1571 0.1571 0.1571 0.1728 0.1728 0.1728 0.1780 0.1832 0.1885 0.1990 0.1990 0.2094 0.2094 0.2199 0.2199 0.2251 0.2304 0.2408 0.2408 0.2513 0.2513 0.2565 0.2723 0.2723 0.2723 0.2880 0.2880 0.2880 0.2984 0.2984 0.3037 0.3246 0.3246 0.3246 0.3246 0.3455 0.3455 0.3455 0.3455 0.3560 0.3560 0.3770 0.3770 0.3770 0.3770 0.3874 0.3874 0.3979 0.3979 0.4136 0.4136 0.4136 0.4188 0.4293 0.4293 0.4346 0.4450 0.4450 0.4555 0.4555 0.4660 0.4660 0.4869 0.4869 0.4869 0.4869 0.4921 0.4974 0.5026 0.5079 0.5131 0.5183 0.5288 0.5288 0.5445 0.5445 0.5445 0.5497 0.5707 0.5707 0.5707 0.5707 0.5916 0.5916 0.5916 0.5916 0.5969 0.6073 0.6073 0.6178 0.6178 0.6230 0.6283 0.6440 0.6440 0.6440 0.6492 0.6545 0.6597 0.6649 0.6702 0.6859 0.6859 0.6859 0.7016 0.7016 0.7016 0.7173 0.7173 0.7173 0.7330 0.7330 0.7330 0.7382 0.7487 0.7487 0.7592 0.7592 0.7644 0.7749 0.7749 0.7906 0.7906 0.7906 0.7958 0.8010 0.8220 0.8220 0.8220 0.8220 0.8377 0.8377 0.8377 0.8429 0.8534 0.8534 0.8586 0.8743 0.8743 0.8743 0.8901 0.8901 0.8901 0.9162 0.9162 0.9162 0.9162 0.9162 0.9319 0.9319 0.9319 0.9372 0.9529 0.9529 0.9529 0.9686 0.9686 0.9686 0.9791 0.9791 0.9895 0.9895 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.10.8.4 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0714 0.1429 0.3571 0.3571 0.3571 0.4286 0.5000 0.5714 0.6429 0.7857 0.7857 1.0000 1.0000 1.0000 0.0952 0.0952 0.1905 0.1905 0.2857 0.2857 0.3810 0.3810 0.4762 0.4762 0.5238 0.6190 0.6190 0.7619 0.7619 0.7619 1.0000 1.0000 1.0000 1.0000 1.0000 0.1250 0.1250 0.3125 0.3125 0.3125 0.4375 0.4375 0.5000 0.5625 0.6250 0.7500 0.7500 0.9375 0.9375 0.9375 1.0000 0.0952 0.0952 0.1905 0.1905 0.2857 0.2857 0.4762 0.4762 0.4762 0.4762 0.5714 0.5714 0.6190 0.6667 0.8095 0.8095 0.8095 0.8571 1.0000 1.0000 1.0000 0.0526 0.1053 0.1579 0.3684 0.3684 0.3684 0.3684 0.4737 0.4737 0.5263 0.5789 0.7368 0.7368 0.7368 0.9474 0.9474 0.9474 0.9474 1.0000 0.0476 0.1905 0.1905 0.1905 0.2381 0.3333 0.3333 0.4286 0.4286 0.5714 0.5714 0.5714 0.7143 0.7143 0.7143 0.8571 0.8571 0.8571 1.0000 1.0000 1.0000 0.0476 0.1905 0.1905 0.1905 0.2857 0.2857 0.4762 0.4762 0.4762 0.4762 0.5714 0.5714 0.7143 0.7143 0.7143 0.7619 0.8095 0.8571 1.0000 1.0000 1.0000 0.1500 0.1500 0.1500 0.2000 0.3000 0.3000 0.4000 0.4000 0.6000 0.6000 0.6000 0.6000 0.6500 0.7000 0.8000 0.8000 0.9000 0.9000 1.0000 1.0000 0.1875 0.1875 0.1875 0.2500 0.3750 0.3750 0.6250 0.6250 0.6250 0.6250 0.6875 0.8125 0.8125 0.8750 1.0000 1.0000 0.1364 0.1364 0.1364 0.1818 0.3182 0.3182 0.3182 0.4545 0.4545 0.4545 0.5000 0.6818 0.6818 0.6818 0.6818 0.7273 0.7727 0.9091 0.9091 0.9091 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.10.8.5 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.10.8.6 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.10.8.1 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(100) OVER ( ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 88.0000 89.0000 89.0000 90.0000 90.0000 91.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.10.8.2 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(101) OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 22.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.10.8.3 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(102) OVER ( ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 88.0000 89.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.10.8.4 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(103) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 22.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.10.8.5 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(104) OVER ( ORDER BY b%10,a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000 103.0000 104.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.10.8.6 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(105) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.10.8.7 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(105) OVER ( ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 88.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000 103.0000 104.0000 105.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+do_execsql_test 1.10.9.1 {
+  SELECT last_value(a+b) OVER ( ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2
+} {52   83   55   79   109   65   26   120   119   50   70   103   80   124
+  36   96   59   124   116   110   57   51   52   130   103   74   87   48
+  128   117   105   136   131   71   133   92   109   63   84   109   57
+  146   78   147   113   74   88   150   87   110   65   121   106   110
+  124   85   145   107   161   171   150   156   80   171   120   109   158
+  114   111   136   147   87   173   124   168   173   162   132   101   154
+  167   190   161   110   156   195   198   102   123   177   169   140   111
+  180   119   160   197   152   124   121   134   146   147   132   213   141
+  193   200   210   157   132   136   175   161   218   188   226   191   187
+  208   211   179   138   144   223   196   214   170   212   202   163   184
+  172   173   195   229   240   187   210   200   163   227   228   223   191
+  252   235   225   243   172   187   202   179   179   182   231   261   207
+  263   206   189   209   212   276   181   274   249   239   234   213   234
+  269   196   271   221   210   229   235   250   223   232   229   279   224
+  280   216   207   207   207   207   207}
+
+do_execsql_test 1.10.9.2 {
+  SELECT last_value(a+b) OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2
+} {134   218   191   212   229   240   213   234   196   223   223   223   223
+  223   146   65   156   132   154   102   123   119   160   152   146   147
+  136   243   261   263   210   210   210   210   210   120   87   162   124
+  141   138   227   228   179   231   234   280   280   280   280   280   57
+  110   114   136   147   167   110   180   193   191   252   187   179   206
+  181   221   279   279   279   279   279   80   171   173   177   157   161
+  179   214   225   182   209   269   271   235   229   229   229   229   229
+  113   74   87   145   190   161   169   140   111   132   213   187   208
+  223   235   189   274   274   274   274   274   51   52   128   109   121
+  124   85   107   150   195   226   172   173   187   223   207   212   212
+  212   212   212   110   87   48   110   173   124   197   211   144   196
+  195   200   202   224   216   207   207   207   207   207   88   171   158
+  156   198   121   210   132   210   239   250   232   232   232   232   232
+  59   109   150   161   111   101   200   175   188   170   202   163   184
+  163   172   276   249   229   229   229   229   229}
+
+do_execsql_test 1.10.9.3 {
+  SELECT last_value(a+b) OVER ( ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2
+} {57   181   80   111   26   48   144   207   36   121   132   101   163
+  172   196   119   136   63   124   179   110   179   182   74   132   189
+  51   52   85   216   163   134   123   210   78   141   57   187   71   87
+  172   173   50   224   88   59   111   170   109   213   223   146   147
+  84   114   191   206   221   157   161   209   229   74   140   107   187
+  207   212   124   202   52   232   55   184   229   106   132   152   120
+  92   110   179   235   65   70   87   110   195   200   175   234   160
+  234   136   80   113   187   109   121   124   196   156   210   239   250
+  72   109   188   202   191   105   154   79   231   147   225   103   161
+  169   223   96   83   249   212   162   227   228   167   180   193   117
+  177   214   145   208   235   150   110   211   103   158   200   168   229
+  92   156   243   280   279   116   173   269   271   131   133   223   128
+  173   197   210   99   150   161   147   218   240   109   136   146   261
+  263   124   130   252   171   190   213   274   108   195   226   119   124
+  171   198   120   276   276   276   276   276}
+
+do_execsql_test 1.10.9.4 {
+  SELECT last_value(a+b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2
+} {223   106   234   191   212   168   229   147   218   240   240   240   240
+  240   123   210   146   147   132   152   160   105   154   92   156   243
+  109   136   146   261   263   263   263   263   263   179   78   141   84
+  120   234   79   231   162   227   228   280   280   280   280   280   57
+  187   114   191   206   221   92   110   136   147   167   180   193   279
+  124   130   252   252   252   252   252   161   209   229   179   235   80
+  225   117   177   214   116   173   269   271   171   171   171   171   171
+  87   74   140   113   187   103   161   169   145   208   235   131   133
+  223   190   213   274   274   274   274   274   172   173   107   187   207
+  212   65   70   109   121   124   223   150   128   108   195   226   226
+  226   226   226   50   224   124   202   87   110   195   200   196   96
+  110   211   173   197   119   124   124   124   124   124   52   232   156
+  210   239   250   83   103   158   210   171   198   198   198   198   198
+  59   111   170   55   184   229   175   72   109   188   202   249   200
+  99   150   161   120   276   276   276   276   276}
+
+do_execsql_test 1.10.9.5 {
+  SELECT last_value(a+b) OVER ( ORDER BY b%10,a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2
+} {134   218   191   212   229   240   213   234   196   223   92   109   105
+  136   146   65   156   132   154   102   123   119   160   152   146   147
+  136   243   261   263   210   79   63   84   78   120   87   162   124
+  141   138   227   228   179   231   234   280   124   57   130   92   57
+  110   114   136   147   167   110   180   193   191   252   187   179   206
+  181   221   279   80   116   117   71   80   171   173   177   157   161
+  179   214   225   182   209   269   271   235   229   103   74   131   133
+  113   74   87   145   190   161   169   140   111   132   213   187   208
+  223   235   189   274   108   65   26   70   51   52   128   109   121
+  124   85   107   150   195   226   172   173   187   223   207   212   119
+  50   124   96   110   87   48   110   173   124   197   211   144   196
+  195   200   202   224   216   207   52   83   103   36   88   171   158
+  156   198   121   210   132   210   239   250   232   99   72   55   120
+  59   109   150   161   111   101   200   175   188   170   202   163   184
+  163   172   276   249   229   229   229   229   229}
+
+do_execsql_test 1.10.9.6 {
+  SELECT last_value(a+b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING) FROM t2
+} {108   52   83   79   65   26   70   103   80   36   116   51   52   128
+  117   71   63   84   109   78   147   88   121   106   124   85   107   171
+  150   80   171   120   109   158   87   168   173   162   156   195   198
+  177   124   121   134   141   210   157   132   161   218   226   191   179
+  138   214   212   172   173   229   240   187   210   227   228   223   225
+  179   182   231   207   209   212   239   234   213   234   269   196   271
+  235   250   223   232   229   280   99   92   72   55   109   120   119
+  50   124   96   59   124   110   57   130   103   74   87   48   105   136
+  131   133   92   109   57   146   113   74   150   87   110   65   110
+  145   161   156   114   111   136   147   173   124   132   101   154   167
+  190   161   110   102   123   169   140   111   180   119   160   197   152
+  146   147   132   213   193   200   136   175   188   187   208   211   144
+  223   196   170   202   163   184   195   200   163   191   252   235   243
+  172   187   202   179   261   263   206   189   276   181   274   249   221
+  210   229   279   224   216   207}
+
+do_execsql_test 1.10.10.1 {
+  SELECT nth_value(b,b+1) OVER (ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   39   {}   {}   {}   {}
+  {}   {}   {}   91   {}   {}   {}   {}   {}   77   54   54   {}   {}   {}
+  {}   62   {}   {}   {}   {}   {}   23   {}   56   {}   97   86   {}   59
+  {}   84   {}   {}   78   65   {}   16   90   81   40   59   56   40   54
+  {}   85   {}   {}   {}   {}   38   {}   32   47   {}   74   35   47   98
+  96   {}   24   72   {}   29   12   46   36   53   {}   81   27   56   {}
+  {}   81   93   63   81   91   68   53   99   89   13   12   97   91   29
+  7   7   78   35   84   53   84   58   61   91   99   15   61   98   16   5
+  75   56   2   37   3   96   62   95   43   63   35   78   16   67   43   16
+  16   90   72   98   85   56   90   46   29   29   4   74   74   2   76   41
+  46   77   24   27   97   46   89   1   85   1   74   78   61   85   51   59
+  35   30   56   25   47   28   73   6   73   74   93   43   3   56   47   85
+  61   61   93   9   97   62}
+
+do_execsql_test 1.10.10.2 {
+  SELECT nth_value(b,b+1) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   91   {}   11   {}   {}   {}   {}
+  11   {}   {}   {}   {}   {}   {}   {}   {}   {}   32   {}   {}   {}   32
+  {}   {}   12   {}   {}   {}   {}   {}   {}   {}   43   {}   {}   {}   {}
+  {}   33   {}   {}   {}   {}   {}   33   {}   43   {}   {}   {}   {}   {}
+  {}   4   {}   {}   {}   {}   {}   {}   {}   {}   34   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   15   55
+  {}   {}   {}   {}   {}   55   {}   {}   {}   86   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   47   {}   {}   {}   {}   {}   47   {}   {}   {}   {}
+  {}   27   47   {}   {}   {}   {}   {}   {}   {}   {}   {}   98   {}   98
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}
+  {}   {}   {}   {}   99   {}   9   9   {}   {}   {}}
+
+do_execsql_test 1.10.10.3 {
+  SELECT nth_value(b,b+1) OVER ( ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2
+} {1   1   2   2   2   2   3   3   4   5   5   5   6   6   6   7   7   7   7
+  7   7   8   8   8   8   8   8   9   9   9   9   9   9   9   11   11   12
+  12   12   12   12   12   13   13   14   14   15   15   15   15   15   15
+  16   16   16   16   16   16   17   17   17   17   19   19   19   19   20
+  20   21   21   21   21   21   21   22   22   22   22   22   23   23   23
+  24   25   25   26   26   27   27   27   27   27   27   29   29   29   30
+  30   30   31   31   31   31   31   32   33   33   33   33   33   33   33
+  33   33   33   33   34   34   34   34   34   34   34   35   35   36   36
+  36   37   37   37   37   37   37   38   38   38   38   38   38   39   39
+  39   39   39   40   41   41   41   41   41   42   43   43   43   43   43
+  44   44   44   44   46   46   46   47   47   47   47   47   47   47   47
+  47   47   47   49   49   49   50   51   51   51   52   52   52   53   53
+  54   54   55   55}
+
+do_execsql_test 1.10.10.4 {
+  SELECT nth_value(b,b+1) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   1   1
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   12   12   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   13   13   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   34   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.10.10.5 {
+  SELECT nth_value(b,b+1) OVER ( ORDER BY b%10,a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   40   {}   {}   {}   40   41   50   {}   {}   81   81
+  50   {}   {}   {}   41   {}   10   91   61   12   30   {}   10   61   30
+  {}   {}   10   {}   23   {}   {}   1   {}   22   80   22   91   93   73
+  {}   30   {}   {}   91   {}   1   30   91   80   91   {}   43   {}   74
+  21   20   {}   {}   74   21   21   2   74   33   81   21   64   64   2   21
+  93   62   14   14   3   91   11   24   55   93   93   62   90   91   55   3
+  24   14   24   91   55   15   72   60   72   61   61   34   43   43   43
+  61   12   4   15   15   51   51   12   23   12   12   25   41   25   13
+  94   12   70   12   84   32   84   94   70   33   12   12   32   41   91
+  70   22   33   84   80   31   75   84   53   75   80   84   80   53   53
+  53   22   44   63   42   95   31   63   44   44   31   90   74   52   63
+  31   63   1   42   90   90   95   3   42}
+
+do_execsql_test 1.10.10.6 {
+  SELECT nth_value(b,b+1) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.10.11.1 {
+  SELECT first_value(b) OVER (ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING) FROM t2
+} {89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89}
+
+do_execsql_test 1.10.11.2 {
+  SELECT first_value(b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING) FROM t2
+} {90   90   90   90   90   90   90   90   90   90   90   90   90   90   81
+  81   81   81   81   81   81   81   81   81   81   81   81   81   81   81
+  81   81   81   81   81   62   62   62   62   62   62   62   62   62   62
+  62   62   62   62   62   62   93   93   93   93   93   93   93   93   93
+  93   93   93   93   93   93   93   93   93   93   93   93   54   54   54
+  54   54   54   54   54   54   54   54   54   54   54   54   54   54   54
+  54   65   65   65   65   65   65   65   65   65   65   65   65   65   65
+  65   65   65   65   65   65   65   96   96   96   96   96   96   96   96
+  96   96   96   96   96   96   96   96   96   96   96   96   96   97   97
+  97   97   97   97   97   97   97   97   97   97   97   97   97   97   97
+  97   97   97   38   38   38   38   38   38   38   38   38   38   38   38
+  38   38   38   38   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89}
+
+do_execsql_test 1.10.11.3 {
+  SELECT first_value(b) OVER ( ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1}
+
+do_execsql_test 1.10.11.4 {
+  SELECT first_value(b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2
+} {10   10   10   10   10   10   10   10   10   10   10   10   10   10   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5
+  5   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6
+  6   6   6   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7
+  7   7   7   7   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8
+  8   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9
+  9   9   9   9}
+
+do_execsql_test 1.10.11.5 {
+  SELECT first_value(b) OVER ( ORDER BY b%10,a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2
+} {90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90}
+
+do_execsql_test 1.10.11.6 {
+  SELECT first_value(b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING) FROM t2
+} {96   38   68   62   46   6   46   78   54   8   84   16   16   86   74   24
+  12   32   56   22   90   28   56   40   56   16   36   98   76   4   94
+  42   30   78   2   80   84   72   58   96   98   74   12   8   20   22   88
+  34   8   34   90   96   60   44   2   74   70   26   26   80   90   36   58
+  72   72   66   64   12   14   62   36   34   36   58   52   30   50   84
+  10   84   44   58   30   38   34   82   89   81   59   39   91   99   97
+  27   97   67   29   93   77   23   93   65   35   47   7   61   91   85
+  85   43   59   3   91   55   15   89   25   47   1   43   75   89   81   33
+  29   53   63   87   37   41   9   61   73   95   65   13   1   21   65   35
+  5   73   11   51   87   41   31   31   15   95   73   79   11   49   59
+  55   75   77   7   85   57   29   59   19   39   47   47   9   33   93   75
+  81   9   23   37   13   91   91   33   15   99   3   95   69   33   21   39
+  83   27   17   7}
+
+do_execsql_test 1.10.12.1 {
+  SELECT lead(b,b) OVER (ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING) FROM t2
+} {96   9   11   89   32   53   91   30   51   56   54   73   22   59   75
+  74   78   8   16   65   15   8   31   87   90   12   32   96   74   76   37
+  85   90   15   35   2   60   36   75   9   51   47   63   51   90   26   42
+  26   8   76   80   90   37   87   56   79   5   87   8   2   39   73   64
+  36   90   72   78   36   73   51   33   20   41   2   26   37   33   8   14
+  33   81   55   1   9   12   39   64   87   72   34   82   21   34   99   62
+  74   41   69   22   75   27   58   8   79   77   26   26   55   {}   29
+  30   7   {}   66   55   2   34   64   {}   33   {}   44   84   {}   {}   95
+  85   19   {}   83   {}   91   {}   {}   9   50   91   33   34   {}   {}
+  84   {}   7   9   {}   {}   {}   44   {}   {}   {}   {}   91   84   {}   95
+  95   52   {}   {}   {}   {}   {}   21   {}   {}   {}   58   {}   {}   {}
+  {}   {}   {}   {}   83   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}}
+
+do_execsql_test 1.10.12.2 {
+  SELECT lead(b,b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   81   {}   {}   {}   21   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   62   {}   {}   {}   12   {}   {}   {}   72
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   53   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   34   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   95   {}   {}   {}   {}   {}   {}   85   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   56   {}   36   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   57   {}   {}   {}   {}   {}   7   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   8   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.10.12.3 {
+  SELECT lead(b,b) OVER ( ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2
+} {1   2   3   3   5   6   7   8   8   9   9   10   11   12   12   13   13
+  14   15   16   16   17   19   20   21   22   23   24   25   26   27   27
+  28   29   30   31   32   33   33   33   34   34   35   36   36   36   37
+  38   39   39   40   41   42   43   43   44   46   47   47   47   49   50
+  52   53   54   55   56   56   57   58   58   58   59   59   59   60   61
+  62   62   64   65   65   67   69   70   72   72   73   74   74   75   75
+  75   77   78   80   81   81   83   84   84   85   85   85   87   88   89
+  89   89   90   90   91   91   91   93   93   94   95   95   96   97   97
+  98   99   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.10.12.4 {
+  SELECT lead(b,b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2
+} {80   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   1
+  11   81   81   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   12   12   72   82   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   13   23   73   73   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   34   84   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   35   85   85   95   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   36   86   96   96   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   37   47
+  47   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   58   58   68   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   39   49   59   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.10.12.5 {
+  SELECT lead(b,b) OVER ( ORDER BY b%10,a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2
+} {34   72   91   74   21   55   23   94   84   95   2   13   61   22   55
+  55   94   85   75   81   65   73   74   21   72   12   94   33   63   73
+  72   96   36   76   3   25   62   3   73   34   12   46   43   93   72   16
+  86   63   15   65   36   77   24   57   25   53   95   34   95   16   97
+  74   97   67   25   98   44   34   65   54   5   68   96   28   47   95
+  34   39   8   38   6   46   96   28   47   95   56   39   99   97   76   8
+  26   9   79   27   95   16   29   {}   58   58   77   85   56   {}   98
+  29   {}   19   96   {}   {}   78   56   98   36   97   {}   89   89   29
+  47   78   {}   {}   {}   38   68   58   {}   58   38   {}   98   {}   {}
+  {}   39   57   9   {}   79   {}   {}   7   {}   {}   {}   9   29   38   78
+  {}   {}   {}   8   39   {}   {}   {}   {}   59   {}   99   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.10.12.6 {
+  SELECT lead(b,b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.10.13.1 {
+  SELECT lag(b,b) OVER (ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   38   {}   {}   {}   {}
+  {}   {}   {}   6   {}   {}   {}   {}   {}   81   46   6   {}   {}   {}   {}
+  23   {}   {}   {}   {}   {}   27   {}   {}   {}   35   6   {}   12   {}
+  23   {}   {}   61   84   {}   93   39   47   {}   54   46   96   56   {}
+  16   {}   {}   {}   {}   89   {}   16   43   {}   85   56   29   99   53
+  {}   59   {}   {}   91   59   53   84   99   {}   93   63   47   {}   {}
+  98   33   67   35   75   1   23   13   55   27   75   98   35   73   63   2
+  21   27   13   24   86   23   84   31   20   94   61   65   75   23   36
+  94   55   90   41   77   96   56   29   40   12   89   63   11   5   73
+  79   1   16   28   31   73   5   39   53   63   41   11   40   2   13   33
+  9   29   90   47   72   9   73   30   44   33   74   93   29   74   42   34
+  63   41   34   96   47   77   1   36   74   72   14   36   26   77   9   72
+  64   8   91   31   52   30}
+
+do_execsql_test 1.10.13.2 {
+  SELECT lag(b,b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   61   {}   81   {}   {}   {}   {}
+  1   {}   {}   {}   {}   {}   {}   {}   {}   {}   22   {}   {}   {}   12
+  {}   {}   62   {}   {}   {}   {}   {}   {}   {}   23   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   43   {}   23   {}   {}   {}   {}   {}
+  {}   54   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   75   {}
+  {}   {}   {}   {}   {}   55   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   47   {}   {}   {}   {}
+  {}   27   7   {}   {}   {}   {}   {}   {}   {}   {}   {}   68   {}   8   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   89   {}   {}
+  {}   {}   {}   {}   {}   29   9   {}   {}   {}}
+
+do_execsql_test 1.10.13.3 {
+  SELECT lag(b,b) OVER ( ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2
+} {{}   1   1   1   1   2   2   2   2   2   2   3   3   3   4   4   5   6   6
+  6   7   7   7   7   7   8   8   8   8   8   8   9   9   9   9   9   9   9
+  9   9   9   10   10   10   10   11   11   11   11   11   12   12   12   12
+  13   13   13   13   13   14   15   15   15   15   16   16   16   16   16
+  17   19   20   20   21   21   21   21   22   22   22   22   23   23   23
+  23   23   24   23   24   24   25   26   26   26   26   26   26   26   26
+  26   26   26   27   27   27   27   28   29   29   29   29   30   30   30
+  30   30   30   31   31   31   31   31   32   32   32   32   32   32   31
+  32   33   33   33   33   33   33   34   34   34   34   34   34   34   34
+  35   35   35   35   35   36   36   36   36   36   36   36   37   37   37
+  38   38   38   38   38   38   39   39   39   39   40   40   41   41   42
+  43   42   43   43   43   43   44   44   44   46   46   46   47   47   47
+  47   47}
+
+do_execsql_test 1.10.13.4 {
+  SELECT lag(b,b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  1   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.10.13.5 {
+  SELECT lag(b,b) OVER ( ORDER BY b%10,a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   61   80   81   {}   {}   {}   {}
+  1   {}   {}   {}   30   {}   21   90   61   {}   22   {}   11   41   12
+  {}   {}   62   {}   {}   {}   {}   31   {}   50   23   30   21   90   {}
+  {}   62   {}   {}   81   {}   22   43   62   23   32   {}   91   {}   90
+  93   54   {}   {}   90   72   12   22   90   81   83   23   80   20   72
+  43   51   33   80   90   2   34   54   1   20   62   12   13   75   44   30
+  93   91   1   21   55   61   61   13   85   3   65   65   91   73   33   93
+  55   84   62   31   11   65   35   85   33   55   15   12   75   22   3
+  73   65   36   85   43   95   43   13   47   44   65   65   96   36   27
+  7   46   34   94   47   36   73   34   35   73   68   24   8   75   85   75
+  66   34   95   36   84   77   46   34   84   47   89   65   36   16   38
+  76   58   57   29   9   44   56   17}
+
+do_execsql_test 1.10.13.6 {
+  SELECT lag(b,b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.10.14.1 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING) FROM t2
+} {89.81.96.59.38   89.81.96.59.38.68   89.81.96.59.38.68.39
+  89.81.96.59.38.68.39.62   89.81.96.59.38.68.39.62.91
+  89.81.96.59.38.68.39.62.91.46   89.81.96.59.38.68.39.62.91.46.6
+  89.81.96.59.38.68.39.62.91.46.6.99   89.81.96.59.38.68.39.62.91.46.6.99.97
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16
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+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65
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+
+do_execsql_test 1.10.14.2 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING) FROM t2
+} {90.40.30.80.20   90.40.30.80.20.90   90.40.30.80.20.90.60
+  90.40.30.80.20.90.60.70   90.40.30.80.20.90.60.70.80
+  90.40.30.80.20.90.60.70.80.90   90.40.30.80.20.90.60.70.80.90.30
+  90.40.30.80.20.90.60.70.80.90.30.50
+  90.40.30.80.20.90.60.70.80.90.30.50.10
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30   81.91.61.91.91
+  81.91.61.91.91.1   81.91.61.91.91.1.81   81.91.61.91.91.1.81.41
+  81.91.61.91.91.1.81.41.61   81.91.61.91.91.1.81.41.61.1
+  81.91.61.91.91.1.81.41.61.1.21   81.91.61.91.91.1.81.41.61.1.21.11
+  81.91.61.91.91.1.81.41.61.1.21.11.51
+  81.91.61.91.91.1.81.41.61.1.21.11.51.41
+  81.91.61.91.91.1.81.41.61.1.21.11.51.41.31
+  81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31
+  81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11
+  81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81
+  81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91
+  81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91
+  81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  62.12.32.22.42   62.12.32.22.42.2   62.12.32.22.42.2.72
+  62.12.32.22.42.2.72.12   62.12.32.22.42.2.72.12.22
+  62.12.32.22.42.2.72.12.22.2   62.12.32.22.42.2.72.12.22.2.72
+  62.12.32.22.42.2.72.12.22.2.72.72   62.12.32.22.42.2.72.12.22.2.72.72.12
+  62.12.32.22.42.2.72.12.22.2.72.72.12.62
+  62.12.32.22.42.2.72.12.22.2.72.72.12.62.52
+  62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82
+  62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82
+  62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82
+  62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82
+  62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82   93.23.93.43.3
+  93.23.93.43.3.43   93.23.93.43.3.43.33   93.23.93.43.3.43.33.53
+  93.23.93.43.3.43.33.53.63   93.23.93.43.3.43.33.53.63.73
+  93.23.93.43.3.43.33.53.63.73.13   93.23.93.43.3.43.33.53.63.73.13.73
+  93.23.93.43.3.43.33.53.63.73.13.73.73
+  93.23.93.43.3.43.33.53.63.73.13.73.73.33
+  93.23.93.43.3.43.33.53.63.73.13.73.73.33.93
+  93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23
+  93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13
+  93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33
+  93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3
+  93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33
+  93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  54.84.74.24.4   54.84.74.24.4.94   54.84.74.24.4.94.84
+  54.84.74.24.4.94.84.74   54.84.74.24.4.94.84.74.34
+  54.84.74.24.4.94.84.74.34.34   54.84.74.24.4.94.84.74.34.34.44
+  54.84.74.24.4.94.84.74.34.34.44.74   54.84.74.24.4.94.84.74.34.34.44.74.64
+  54.84.74.24.4.94.84.74.34.34.44.74.64.14
+  54.84.74.24.4.94.84.74.34.34.44.74.64.14.34
+  54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84
+  54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84
+  54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44
+  54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34
+  54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34
+  54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34
+  54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34
+  54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34   65.35.85.85.55
+  65.35.85.85.55.15   65.35.85.85.55.15.25   65.35.85.85.55.15.25.75
+  65.35.85.85.55.15.25.75.95   65.35.85.85.55.15.25.75.95.65
+  65.35.85.85.55.15.25.75.95.65.65   65.35.85.85.55.15.25.75.95.65.65.35
+  65.35.85.85.55.15.25.75.95.65.65.35.5
+  65.35.85.85.55.15.25.75.95.65.65.35.5.15
+  65.35.85.85.55.15.25.75.95.65.65.35.5.15.95
+  65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55
+  65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75
+  65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85
+  65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75
+  65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15
+  65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  96.46.6.46.16   96.46.6.46.16.16   96.46.6.46.16.16.86
+  96.46.6.46.16.16.86.56   96.46.6.46.16.16.86.56.56
+  96.46.6.46.16.16.86.56.56.56   96.46.6.46.16.16.86.56.56.56.16
+  96.46.6.46.16.16.86.56.56.56.16.36   96.46.6.46.16.16.86.56.56.56.16.36.76
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96.96
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  97.27.97.67.77   97.27.97.67.77.47   97.27.97.67.77.47.7
+  97.27.97.67.77.47.7.47   97.27.97.67.77.47.7.47.87
+  97.27.97.67.77.47.7.47.87.37   97.27.97.67.77.47.7.47.87.37.87
+  97.27.97.67.77.47.7.47.87.37.87.77   97.27.97.67.77.47.7.47.87.37.87.77.7
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7   38.68.78.8.28
+  38.68.78.8.28.98   38.68.78.8.28.98.78   38.68.78.8.28.98.78.58
+  38.68.78.8.28.98.78.58.98   38.68.78.8.28.98.78.58.98.8
+  38.68.78.8.28.98.78.58.98.8.88   38.68.78.8.28.98.78.58.98.8.88.8
+  38.68.78.8.28.98.78.58.98.8.88.8.58
+  38.68.78.8.28.98.78.58.98.8.88.8.58.58
+  38.68.78.8.28.98.78.58.98.8.88.8.58.58.58
+  38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38
+  38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38
+  38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38
+  38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38
+  38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38   89.59.39.99.29
+  89.59.39.99.29.59   89.59.39.99.29.59.89   89.59.39.99.29.59.89.89
+  89.59.39.99.29.59.89.89.29   89.59.39.99.29.59.89.89.29.9
+  89.59.39.99.29.59.89.89.29.9.79   89.59.39.99.29.59.89.89.29.9.79.49
+  89.59.39.99.29.59.89.89.29.9.79.49.59
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39}
+
+do_execsql_test 1.10.14.3 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2
+} {1.1.2.2.3   1.1.2.2.3.3   1.1.2.2.3.3.4   1.1.2.2.3.3.4.5
+  1.1.2.2.3.3.4.5.6   1.1.2.2.3.3.4.5.6.7   1.1.2.2.3.3.4.5.6.7.7
+  1.1.2.2.3.3.4.5.6.7.7.7   1.1.2.2.3.3.4.5.6.7.7.7.8
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8   1.1.2.2.3.3.4.5.6.7.7.7.8.8.8
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9   1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26
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+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99}
+
+do_execsql_test 1.10.14.4 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2
+} {10.20.30.30.30   10.20.30.30.30.40   10.20.30.30.30.40.50
+  10.20.30.30.30.40.50.60   10.20.30.30.30.40.50.60.70
+  10.20.30.30.30.40.50.60.70.80   10.20.30.30.30.40.50.60.70.80.80
+  10.20.30.30.30.40.50.60.70.80.80.90
+  10.20.30.30.30.40.50.60.70.80.80.90.90
+  10.20.30.30.30.40.50.60.70.80.80.90.90.90
+  10.20.30.30.30.40.50.60.70.80.80.90.90.90
+  10.20.30.30.30.40.50.60.70.80.80.90.90.90
+  10.20.30.30.30.40.50.60.70.80.80.90.90.90
+  10.20.30.30.30.40.50.60.70.80.80.90.90.90   1.1.11.11.21   1.1.11.11.21.21
+  1.1.11.11.21.21.31   1.1.11.11.21.21.31.31   1.1.11.11.21.21.31.31.41
+  1.1.11.11.21.21.31.31.41.41   1.1.11.11.21.21.31.31.41.41.51
+  1.1.11.11.21.21.31.31.41.41.51.61   1.1.11.11.21.21.31.31.41.41.51.61.61
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81.81
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91   2.2.12.12.12
+  2.2.12.12.12.22   2.2.12.12.12.22.22   2.2.12.12.12.22.22.32
+  2.2.12.12.12.22.22.32.42   2.2.12.12.12.22.22.32.42.52
+  2.2.12.12.12.22.22.32.42.52.62   2.2.12.12.12.22.22.32.42.52.62.62
+  2.2.12.12.12.22.22.32.42.52.62.62.72
+  2.2.12.12.12.22.22.32.42.52.62.62.72.72
+  2.2.12.12.12.22.22.32.42.52.62.62.72.72.72
+  2.2.12.12.12.22.22.32.42.52.62.62.72.72.72.82
+  2.2.12.12.12.22.22.32.42.52.62.62.72.72.72.82
+  2.2.12.12.12.22.22.32.42.52.62.62.72.72.72.82
+  2.2.12.12.12.22.22.32.42.52.62.62.72.72.72.82
+  2.2.12.12.12.22.22.32.42.52.62.62.72.72.72.82   3.3.13.13.23
+  3.3.13.13.23.23   3.3.13.13.23.23.33   3.3.13.13.23.23.33.33
+  3.3.13.13.23.23.33.33.33   3.3.13.13.23.23.33.33.33.33
+  3.3.13.13.23.23.33.33.33.33.43   3.3.13.13.23.23.33.33.33.33.43.43
+  3.3.13.13.23.23.33.33.33.33.43.43.53
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63.73
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63.73.73
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63.73.73.73
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  4.14.24.34.34   4.14.24.34.34.34   4.14.24.34.34.34.34
+  4.14.24.34.34.34.34.44   4.14.24.34.34.34.34.44.44
+  4.14.24.34.34.34.34.44.44.54   4.14.24.34.34.34.34.44.44.54.64
+  4.14.24.34.34.34.34.44.44.54.64.74   4.14.24.34.34.34.34.44.44.54.64.74.74
+  4.14.24.34.34.34.34.44.44.54.64.74.74.74
+  4.14.24.34.34.34.34.44.44.54.64.74.74.74.84
+  4.14.24.34.34.34.34.44.44.54.64.74.74.74.84.84
+  4.14.24.34.34.34.34.44.44.54.64.74.74.74.84.84.84
+  4.14.24.34.34.34.34.44.44.54.64.74.74.74.84.84.84.84
+  4.14.24.34.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  4.14.24.34.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  4.14.24.34.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  4.14.24.34.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  4.14.24.34.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94   5.15.15.15.25
+  5.15.15.15.25.35   5.15.15.15.25.35.35   5.15.15.15.25.35.35.55
+  5.15.15.15.25.35.35.55.55   5.15.15.15.25.35.35.55.55.65
+  5.15.15.15.25.35.35.55.55.65.65   5.15.15.15.25.35.35.55.55.65.65.65
+  5.15.15.15.25.35.35.55.55.65.65.65.75
+  5.15.15.15.25.35.35.55.55.65.65.65.75.75
+  5.15.15.15.25.35.35.55.55.65.65.65.75.75.75
+  5.15.15.15.25.35.35.55.55.65.65.65.75.75.75.85
+  5.15.15.15.25.35.35.55.55.65.65.65.75.75.75.85.85
+  5.15.15.15.25.35.35.55.55.65.65.65.75.75.75.85.85.85
+  5.15.15.15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95
+  5.15.15.15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95
+  5.15.15.15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  5.15.15.15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  5.15.15.15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  5.15.15.15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  5.15.15.15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  6.16.16.16.26   6.16.16.16.26.26   6.16.16.16.26.26.36
+  6.16.16.16.26.26.36.36   6.16.16.16.26.26.36.36.36
+  6.16.16.16.26.26.36.36.36.36   6.16.16.16.26.26.36.36.36.36.46
+  6.16.16.16.26.26.36.36.36.36.46.46   6.16.16.16.26.26.36.36.36.36.46.46.56
+  6.16.16.16.26.26.36.36.36.36.46.46.56.56
+  6.16.16.16.26.26.36.36.36.36.46.46.56.56.56
+  6.16.16.16.26.26.36.36.36.36.46.46.56.56.56.66
+  6.16.16.16.26.26.36.36.36.36.46.46.56.56.56.66.76
+  6.16.16.16.26.26.36.36.36.36.46.46.56.56.56.66.76.86
+  6.16.16.16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96
+  6.16.16.16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96
+  6.16.16.16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  6.16.16.16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  6.16.16.16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  6.16.16.16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  6.16.16.16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96   7.7.7.17.27
+  7.7.7.17.27.27   7.7.7.17.27.27.37   7.7.7.17.27.27.37.37
+  7.7.7.17.27.27.37.37.47   7.7.7.17.27.27.37.37.47.47
+  7.7.7.17.27.27.37.37.47.47.47   7.7.7.17.27.27.37.37.47.47.47.47
+  7.7.7.17.27.27.37.37.47.47.47.47.57
+  7.7.7.17.27.27.37.37.47.47.47.47.57.67
+  7.7.7.17.27.27.37.37.47.47.47.47.57.67.77
+  7.7.7.17.27.27.37.37.47.47.47.47.57.67.77.77
+  7.7.7.17.27.27.37.37.47.47.47.47.57.67.77.77.87
+  7.7.7.17.27.27.37.37.47.47.47.47.57.67.77.77.87.87
+  7.7.7.17.27.27.37.37.47.47.47.47.57.67.77.77.87.87.97
+  7.7.7.17.27.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  7.7.7.17.27.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  7.7.7.17.27.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  7.7.7.17.27.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  7.7.7.17.27.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97   8.8.8.28.38
+  8.8.8.28.38.38   8.8.8.28.38.38.58   8.8.8.28.38.38.58.58
+  8.8.8.28.38.38.58.58.58   8.8.8.28.38.38.58.58.58.58
+  8.8.8.28.38.38.58.58.58.58.68   8.8.8.28.38.38.58.58.58.58.68.78
+  8.8.8.28.38.38.58.58.58.58.68.78.78
+  8.8.8.28.38.38.58.58.58.58.68.78.78.88
+  8.8.8.28.38.38.58.58.58.58.68.78.78.88.98
+  8.8.8.28.38.38.58.58.58.58.68.78.78.88.98.98
+  8.8.8.28.38.38.58.58.58.58.68.78.78.88.98.98
+  8.8.8.28.38.38.58.58.58.58.68.78.78.88.98.98
+  8.8.8.28.38.38.58.58.58.58.68.78.78.88.98.98
+  8.8.8.28.38.38.58.58.58.58.68.78.78.88.98.98   9.9.9.19.29   9.9.9.19.29.29
+  9.9.9.19.29.29.29   9.9.9.19.29.29.29.39   9.9.9.19.29.29.29.39.39
+  9.9.9.19.29.29.29.39.39.39   9.9.9.19.29.29.29.39.39.39.49
+  9.9.9.19.29.29.29.39.39.39.49.59   9.9.9.19.29.29.29.39.39.39.49.59.59
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99}
+
+do_execsql_test 1.10.14.5 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( ORDER BY b%10,a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING ) FROM t2
+} {90.40.30.80.20   90.40.30.80.20.90   90.40.30.80.20.90.60
+  90.40.30.80.20.90.60.70   90.40.30.80.20.90.60.70.80
+  90.40.30.80.20.90.60.70.80.90   90.40.30.80.20.90.60.70.80.90.30
+  90.40.30.80.20.90.60.70.80.90.30.50
+  90.40.30.80.20.90.60.70.80.90.30.50.10
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63
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+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39}
+
+do_execsql_test 1.10.14.6 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING) FROM t2
+} {96   38   68   62   46   6   46   78   54   8   84   16   16   86   74   24
+  12   32   56   22   90   28   56   40   56   16   36   98   76   4   94
+  42   30   78   2   80   84   72   58   96   98   74   12   8   20   22   88
+  34   8   34   90   96   60   44   2   74   70   26   26   80   90   36   58
+  72   72   66   64   12   14   62   36   34   36   58   52   30   50   84
+  10   84   44   58   30   38   34   82   89   81   59   39   91   99   97
+  27   97   67   29   93   77   23   93   65   35   47   7   61   91   85
+  85   43   59   3   91   55   15   89   25   47   1   43   75   89   81   33
+  29   53   63   87   37   41   9   61   73   95   65   13   1   21   65   35
+  5   73   11   51   87   41   31   31   15   95   73   79   11   49   59
+  55   75   77   7   85   57   29   59   19   39   47   47   9   33   93   75
+  81   9   23   37   13   91   91   33   15   99   3   95   69   33   21   39
+  83   27   17   7}
+
+do_execsql_test 1.10.14.7 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (win1 ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING) 
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a)
+    ORDER BY 1
+} {1   1   10   11   11   12   12   12   13   13   14   15   15   15   16   16
+  16   17   19   2   2   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   3   3   30   30   30   31   31   32   33   33
+  33   33   34   34   34   34   35   35   36   36   36   36   37   37   38
+  38   39   39   39   4   40   41   41   42   43   43   44   44   46   46
+  47   47   47   47   49   5   50   51   52   53   54   55   55   56   56
+  56   57   58   58   58   58   59   59   59   59   6   60   61   61   62
+  62   63   64   65   65   65   66   67   68   69   7   7   7   70   72   72
+  72   73   73   73   74   74   74   75   75   75   76   77   77   78   78
+  79   8   8   8   80   80   81   81   81   82   83   84   84   84   84   85
+  85   85   86   87   87   88   89   89   89   9   9   9   90   90   90   91
+  91   91   91   91   93   93   93   94   95   95   95   96   96   96   97
+  97   98   98   99   99}
+
+do_execsql_test 1.10.14.8 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (win1 ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING) 
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a ORDER BY b%10)
+    ORDER BY 1
+} {1   1   10   11   11   12   12   12   13   13   14   15   15   15   16   16
+  16   17   19   2   2   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   3   3   30   30   30   31   31   32   33   33
+  33   33   34   34   34   34   35   35   36   36   36   36   37   37   38
+  38   39   39   39   4   40   41   41   42   43   43   44   44   46   46
+  47   47   47   47   49   5   50   51   52   53   54   55   55   56   56
+  56   57   58   58   58   58   59   59   59   59   6   60   61   61   62
+  62   63   64   65   65   65   66   67   68   69   7   7   7   70   72   72
+  72   73   73   73   74   74   74   75   75   75   76   77   77   78   78
+  79   8   8   8   80   80   81   81   81   82   83   84   84   84   84   85
+  85   85   86   87   87   88   89   89   89   9   9   9   90   90   90   91
+  91   91   91   91   93   93   93   94   95   95   95   96   96   96   97
+  97   98   98   99   99}
+
+do_execsql_test 1.10.14.9 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER win2
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a ORDER BY b%10),
+           win2 AS (win1 ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING)
+    ORDER BY 1
+} {1   1   10   11   11   12   12   12   13   13   14   15   15   15   16   16
+  16   17   19   2   2   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   3   3   30   30   30   31   31   32   33   33
+  33   33   34   34   34   34   35   35   36   36   36   36   37   37   38
+  38   39   39   39   4   40   41   41   42   43   43   44   44   46   46
+  47   47   47   47   49   5   50   51   52   53   54   55   55   56   56
+  56   57   58   58   58   58   59   59   59   59   6   60   61   61   62
+  62   63   64   65   65   65   66   67   68   69   7   7   7   70   72   72
+  72   73   73   73   74   74   74   75   75   75   76   77   77   78   78
+  79   8   8   8   80   80   81   81   81   82   83   84   84   84   84   85
+  85   85   86   87   87   88   89   89   89   9   9   9   90   90   90   91
+  91   91   91   91   93   93   93   94   95   95   95   96   96   96   97
+  97   98   98   99   99}
+
+do_execsql_test 1.10.15.1 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE a%2=0) OVER win FROM t2
+    WINDOW win AS (ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING)
+} {5 89.96.38   6 89.96.38   7 89.96.38.39   8 89.96.38.39   9 89.96.38.39.91
+  10 89.96.38.39.91   11 89.96.38.39.91.6   12 89.96.38.39.91.6
+  13 89.96.38.39.91.6.97   14 89.96.38.39.91.6.97   15 89.96.38.39.91.6.97.46
+  16 89.96.38.39.91.6.97.46   17 89.96.38.39.91.6.97.46.54
+  18 89.96.38.39.91.6.97.46.54   19 89.96.38.39.91.6.97.46.54.8
+  20 89.96.38.39.91.6.97.46.54.8   21 89.96.38.39.91.6.97.46.54.8.29
+  22 89.96.38.39.91.6.97.46.54.8.29   23 89.96.38.39.91.6.97.46.54.8.29.84
+  24 89.96.38.39.91.6.97.46.54.8.29.84
+  25 89.96.38.39.91.6.97.46.54.8.29.84.23
+  26 89.96.38.39.91.6.97.46.54.8.29.84.23
+  27 89.96.38.39.91.6.97.46.54.8.29.84.23.16
+  28 89.96.38.39.91.6.97.46.54.8.29.84.23.16
+  29 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65
+  30 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65
+  31 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47
+  32 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47
+  33 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86
+  34 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86
+  35 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61
+  36 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61
+  37 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85
+  38 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85
+  39 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85
+  40 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85
+  41 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59
+  42 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59
+  43 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32
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+  179 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33
+  180 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33
+  181 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39
+  182 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39
+  183 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58
+  184 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58
+  185 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38
+  186 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38
+  187 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83
+  188 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83
+  189 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82
+  190 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7}
+
+do_execsql_test 1.10.15.2 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE 0=1) OVER win FROM t2
+    WINDOW win AS (ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING)
+} {5 {}   6 {}   7 {}   8 {}   9 {}   10 {}   11 {}   12 {}   13 {}   14 {}
+  15 {}   16 {}   17 {}   18 {}   19 {}   20 {}   21 {}   22 {}   23 {}
+  24 {}   25 {}   26 {}   27 {}   28 {}   29 {}   30 {}   31 {}   32 {}
+  33 {}   34 {}   35 {}   36 {}   37 {}   38 {}   39 {}   40 {}   41 {}
+  42 {}   43 {}   44 {}   45 {}   46 {}   47 {}   48 {}   49 {}   50 {}
+  51 {}   52 {}   53 {}   54 {}   55 {}   56 {}   57 {}   58 {}   59 {}
+  60 {}   61 {}   62 {}   63 {}   64 {}   65 {}   66 {}   67 {}   68 {}
+  69 {}   70 {}   71 {}   72 {}   73 {}   74 {}   75 {}   76 {}   77 {}
+  78 {}   79 {}   80 {}   81 {}   82 {}   83 {}   84 {}   85 {}   86 {}
+  87 {}   88 {}   89 {}   90 {}   91 {}   92 {}   93 {}   94 {}   95 {}
+  96 {}   97 {}   98 {}   99 {}   100 {}   101 {}   102 {}   103 {}   104 {}
+  105 {}   106 {}   107 {}   108 {}   109 {}   110 {}   111 {}   112 {}
+  113 {}   114 {}   115 {}   116 {}   117 {}   118 {}   119 {}   120 {}
+  121 {}   122 {}   123 {}   124 {}   125 {}   126 {}   127 {}   128 {}
+  129 {}   130 {}   131 {}   132 {}   133 {}   134 {}   135 {}   136 {}
+  137 {}   138 {}   139 {}   140 {}   141 {}   142 {}   143 {}   144 {}
+  145 {}   146 {}   147 {}   148 {}   149 {}   150 {}   151 {}   152 {}
+  153 {}   154 {}   155 {}   156 {}   157 {}   158 {}   159 {}   160 {}
+  161 {}   162 {}   163 {}   164 {}   165 {}   166 {}   167 {}   168 {}
+  169 {}   170 {}   171 {}   172 {}   173 {}   174 {}   175 {}   176 {}
+  177 {}   178 {}   179 {}   180 {}   181 {}   182 {}   183 {}   184 {}
+  185 {}   186 {}   187 {}   188 {}   189 {}   190 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}}
+
+do_execsql_test 1.10.15.3 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE 1=0) OVER win FROM t2
+    WINDOW win AS (PARTITION BY (a%10) ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING)
+} {5 {}   6 {}   7 {}   8 {}   9 {}   10 {}   11 {}   12 {}   13 {}   14 {}
+  15 {}   16 {}   17 {}   18 {}   19 {}   20 {}   20 {}   20 {}   20 {}
+  20 {}   5 {}   6 {}   7 {}   8 {}   9 {}   10 {}   11 {}   12 {}   13 {}
+  14 {}   15 {}   16 {}   17 {}   18 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   5 {}   6 {}   7 {}   8 {}   9 {}   10 {}   11 {}   12 {}   13 {}
+  14 {}   15 {}   16 {}   17 {}   18 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   5 {}   6 {}   7 {}   8 {}   9 {}   10 {}   11 {}   12 {}   13 {}
+  14 {}   15 {}   16 {}   17 {}   18 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   5 {}   6 {}   7 {}   8 {}   9 {}   10 {}   11 {}   12 {}   13 {}
+  14 {}   15 {}   16 {}   17 {}   18 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   5 {}   6 {}   7 {}   8 {}   9 {}   10 {}   11 {}   12 {}   13 {}
+  14 {}   15 {}   16 {}   17 {}   18 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   5 {}   6 {}   7 {}   8 {}   9 {}   10 {}   11 {}   12 {}   13 {}
+  14 {}   15 {}   16 {}   17 {}   18 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   5 {}   6 {}   7 {}   8 {}   9 {}   10 {}   11 {}   12 {}   13 {}
+  14 {}   15 {}   16 {}   17 {}   18 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   5 {}   6 {}   7 {}   8 {}   9 {}   10 {}   11 {}   12 {}   13 {}
+  14 {}   15 {}   16 {}   17 {}   18 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   5 {}   6 {}   7 {}   8 {}   9 {}   10 {}   11 {}   12 {}   13 {}
+  14 {}   15 {}   16 {}   17 {}   18 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}}
+
+do_execsql_test 1.10.15.4 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE a%2=0) OVER win FROM t2
+    WINDOW win AS (PARTITION BY (a%10) ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 4 FOLLOWING)
+} {5 89.6.29.47.59   6 89.6.29.47.59.28   7 89.6.29.47.59.28.75
+  8 89.6.29.47.59.28.75.78   9 89.6.29.47.59.28.75.78.72
+  10 89.6.29.47.59.28.75.78.72.98   11 89.6.29.47.59.28.75.78.72.98.87
+  12 89.6.29.47.59.28.75.78.72.98.87.73
+  13 89.6.29.47.59.28.75.78.72.98.87.73.96
+  14 89.6.29.47.59.28.75.78.72.98.87.73.96.74
+  15 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90
+  16 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75
+  17 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91
+  18 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69
+  19 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7   5 {}   6 {}
+  7 {}   8 {}   9 {}   10 {}   11 {}   12 {}   13 {}   14 {}   15 {}   16 {}
+  17 {}   18 {}   19 {}   19 {}   19 {}   19 {}   19 {}   5 96.97.84.86.32
+  6 96.97.84.86.32.25   7 96.97.84.86.32.25.89   8 96.97.84.86.32.25.89.29
+  9 96.97.84.86.32.25.89.29.9   10 96.97.84.86.32.25.89.29.9.21
+  11 96.97.84.86.32.25.89.29.9.21.12   12 96.97.84.86.32.25.89.29.9.21.12.88
+  13 96.97.84.86.32.25.89.29.9.21.12.88.55
+  14 96.97.84.86.32.25.89.29.9.21.12.88.55.70
+  15 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58
+  16 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81
+  17 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91
+  18 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58   5 {}   6 {}
+  7 {}   8 {}   9 {}   10 {}   11 {}   12 {}   13 {}   14 {}   15 {}   16 {}
+  17 {}   18 {}   19 {}   19 {}   19 {}   19 {}   19 {}   5 38.46.23.61.3
+  6 38.46.23.61.3.1   7 38.46.23.61.3.1.76   8 38.46.23.61.3.1.76.63
+  9 38.46.23.61.3.1.76.63.73   10 38.46.23.61.3.1.76.63.73.65
+  11 38.46.23.61.3.1.76.63.73.65.20   12 38.46.23.61.3.1.76.63.73.65.20.8
+  13 38.46.23.61.3.1.76.63.73.65.20.8.77
+  14 38.46.23.61.3.1.76.63.73.65.20.8.77.19
+  15 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9
+  16 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23
+  17 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15
+  18 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38   5 {}   6 {}
+  7 {}   8 {}   9 {}   10 {}   11 {}   12 {}   13 {}   14 {}   15 {}   16 {}
+  17 {}   18 {}   19 {}   19 {}   19 {}   19 {}   19 {}   5 39.54.16.85.22
+  6 39.54.16.85.22.40   7 39.54.16.85.22.40.4   8 39.54.16.85.22.40.4.87
+  9 39.54.16.85.22.40.4.87.65   10 39.54.16.85.22.40.4.87.65.5
+  11 39.54.16.85.22.40.4.87.65.5.31   12 39.54.16.85.22.40.4.87.65.5.31.49
+  13 39.54.16.85.22.40.4.87.65.5.31.49.2
+  14 39.54.16.85.22.40.4.87.65.5.31.49.2.26
+  15 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72
+  16 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13
+  17 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36
+  18 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83   5 {}   6 {}
+  7 {}   8 {}   9 {}   10 {}   11 {}   12 {}   13 {}   14 {}   15 {}   16 {}
+  17 {}   18 {}   19 {}   19 {}   19 {}   19 {}   19 {}   5 91.8.65.85.55
+  6 91.8.65.85.55.56   7 91.8.65.85.55.56.42   8 91.8.65.85.55.56.42.80
+  9 91.8.65.85.55.56.42.80.58   10 91.8.65.85.55.56.42.80.58.11
+  11 91.8.65.85.55.56.42.80.58.11.95   12 91.8.65.85.55.56.42.80.58.11.95.90
+  13 91.8.65.85.55.56.42.80.58.11.95.90.85
+  14 91.8.65.85.55.56.42.80.58.11.95.90.85.47
+  15 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33
+  16 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14
+  17 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3
+  18 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82   5 {}   6 {}
+  7 {}   8 {}   9 {}   10 {}   11 {}   12 {}   13 {}   14 {}   15 {}   16 {}
+  17 {}   18 {}   19 {}   19 {}   19 {}   19 {}   19 {}}
+
+do_execsql_test 1.11.2.1 {
+  SELECT max(b) OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2
+} {96   96   96   96   96   96   96   91   91   99   99   99   99   99   99
+  99   97   97   97   97   97   97   93   93   93   93   93   93   93   93
+  93   93   86   91   91   91   91   91   91   91   85   85   85   91   91
+  91   91   91   91   91   90   90   89   89   89   89   56   56   75   75
+  89   98   98   98   98   98   98   98   94   94   94   94   78   78   87
+  87   87   87   87   87   87   84   84   95   95   95   95   96   98   98
+  98   98   98   98   98   74   74   74   87   87   87   87   87   87   87
+  41   95   95   95   95   95   95   95   88   88   88   90   90   96   96
+  96   96   96   96   96   77   85   85   85   85   85   85   85   74   74
+  70   70   80   90   90   90   90   90   90   90   72   72   93   93   93
+  93   93   93   93   81   81   81   62   91   91   91   91   91   91   91
+  99   99   99   99   99   99   99   95   95   84   84   84   84   84   84
+  84   84   58   58   83   83   83   83   83   83   83}
+
+do_execsql_test 1.11.2.2 {
+  SELECT min(b) OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2
+} {81   59   38   38   38   38   38   38   6   6   6   6   6   6   6   27   8
+  8   8   8   8   8   8   16   16   16   16   16   16   7   7   7   7   7   7
+  7   24   24   24   12   12   12   3   3   3   3   3   3   3   15   15   15
+  1   1   1   1   1   1   1   16   16   16   16   16   4   4   4   4   4   4
+  4   29   29   2   2   2   2   2   2   2   9   9   9   9   9   9   9   13
+  13   1   1   1   1   1   1   1   5   5   5   5   5   8   8   8   8   8   8
+  8   15   15   15   15   8   8   8   8   8   8   8   11   34   34   55   44
+  2   2   2   2   2   2   2   7   19   19   19   19   19   19   19   26   26
+  26   9   9   9   9   9   9   9   33   33   9   9   9   9   9   9   9   12
+  12   12   12   14   15   15   15   3   3   3   3   3   3   3   30   10   10
+  10   10   10   10   10   21   21   21   30   27   27   17   7   7   7}
+
+do_execsql_test 1.11.3.1 {
+  SELECT row_number() OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.11.3.2 {
+  SELECT row_number() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.11.3.3 {
+  SELECT row_number() OVER ( ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.11.4.1 {
+  SELECT dense_rank() OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.11.4.2 {
+  SELECT dense_rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.11.4.3 {
+  SELECT dense_rank() OVER ( ORDER BY b ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2
+} {1   1   2   2   3   3   4   5   6   7   7   7   8   8   8   9   9   9   10
+  11   11   12   12   12   13   13   14   15   15   15   16   16   16   17
+  18   19   20   20   21   21   22   22   23   24   25   25   26   26   27
+  28   28   28   29   29   29   30   30   31   32   32   32   32   33   33
+  33   33   34   34   35   35   35   35   36   36   37   37   38   38   38
+  39   40   40   41   42   42   43   43   44   44   45   45   45   45   46
+  47   48   49   50   51   52   52   53   53   53   54   55   55   55   55
+  56   56   56   56   57   58   58   59   59   60   61   62   62   62   63
+  64   65   66   67   68   68   68   69   69   69   70   70   70   71   71
+  71   72   73   73   74   74   75   76   76   77   77   77   78   79   80
+  80   80   80   81   81   81   82   83   83   84   85   85   85   86   86
+  86   87   87   87   87   87   88   88   88   89   90   90   90   91   91
+  91   92   92   93   93   94   94}
+
+do_execsql_test 1.11.4.4 {
+  SELECT dense_rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2
+} {1   2   3   3   3   4   5   6   7   8   8   9   9   9   1   1   2   2   3
+  3   4   4   5   5   6   7   7   8   8   8   9   9   9   9   9   1   1   2
+  2   2   3   3   4   5   6   7   7   8   8   8   9   1   1   2   2   3   3
+  4   4   4   4   5   5   6   7   8   8   8   9   10   10   10   1   2   3
+  4   4   4   4   5   5   6   7   8   8   8   9   9   9   9   10   1   2   2
+  2   3   4   4   5   5   6   6   6   7   7   7   8   8   8   9   9   9   1
+  2   2   2   3   3   4   4   4   4   5   5   6   6   6   7   8   9   10   10
+  10   1   1   1   2   3   3   4   4   5   5   5   5   6   7   8   8   9   9
+  10   10   1   1   1   2   3   3   4   4   4   4   5   6   6   7   8   8   1
+  1   1   2   3   3   3   4   4   4   5   6   6   6   6   7   8   9   9   9
+  10   10}
+
+do_execsql_test 1.11.4.5 {
+  SELECT dense_rank() OVER ( ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   4   4   4   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5   5   5   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   6   6   6   6
+  6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   7   7
+  7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7
+  8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8
+  8   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   10   10
+  10   10   10   10   10   10   10   10   10   10   10   10   10   10   10
+  10   10   10   10   10}
+
+do_execsql_test 1.11.4.6 {
+  SELECT dense_rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   3   3   3   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   4   4   4   4   4   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   5   5   5   5   5   5
+  5   5   5   5   5   5   5   5   5   5   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5
+  5}
+
+do_execsql_test 1.11.5.1 {
+  SELECT rank() OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.11.5.2 {
+  SELECT rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.11.5.3 {
+  SELECT rank() OVER ( ORDER BY b ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2
+} {1   1   3   3   5   5   7   8   9   10   10   10   13   13   13   16   16
+  16   19   20   20   22   22   22   25   25   27   28   28   28   31   31
+  31   34   35   36   37   37   39   39   41   41   43   44   45   45   47
+  47   49   50   50   50   53   53   53   56   56   58   59   59   59   59
+  63   63   63   63   67   67   69   69   69   69   73   73   75   75   77
+  77   77   80   81   81   83   84   84   86   86   88   88   90   90   90
+  90   94   95   96   97   98   99   100   100   102   102   102   105   106
+  106   106   106   110   110   110   110   114   115   115   117   117   119
+  120   121   121   121   124   125   126   127   128   129   129   129   132
+  132   132   135   135   135   138   138   138   141   142   142   144   144
+  146   147   147   149   149   149   152   153   154   154   154   154   158
+  158   158   161   162   162   164   165   165   165   168   168   168   171
+  171   171   171   171   176   176   176   179   180   180   180   183   183
+  183   186   186   188   188   190   190}
+
+do_execsql_test 1.11.5.4 {
+  SELECT rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2
+} {1   2   3   3   3   6   7   8   9   10   10   12   12   12   1   1   3   3
+  5   5   7   7   9   9   11   12   12   14   14   14   17   17   17   17
+  17   1   1   3   3   3   6   6   8   9   10   11   11   13   13   13   16
+  1   1   3   3   5   5   7   7   7   7   11   11   13   14   15   15   15
+  18   19   19   19   1   2   3   4   4   4   4   8   8   10   11   12   12
+  12   15   15   15   15   19   1   2   2   2   5   6   6   8   8   10   10
+  10   13   13   13   16   16   16   19   19   19   1   2   2   2   5   5   7
+  7   7   7   11   11   13   13   13   16   17   18   19   19   19   1   1
+  1   4   5   5   7   7   9   9   9   9   13   14   15   15   17   17   19
+  19   1   1   1   4   5   5   7   7   7   7   11   12   12   14   15   15
+  1   1   1   4   5   5   5   8   8   8   11   12   12   12   12   16   17
+  18   18   18   21   21}
+
+do_execsql_test 1.11.5.5 {
+  SELECT rank() OVER ( ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   15   15   15   15
+  15   15   15   15   15   15   15   15   15   15   15   15   15   15   15
+  15   15   36   36   36   36   36   36   36   36   36   36   36   36   36
+  36   36   36   52   52   52   52   52   52   52   52   52   52   52   52
+  52   52   52   52   52   52   52   52   52   73   73   73   73   73   73
+  73   73   73   73   73   73   73   73   73   73   73   73   73   92   92
+  92   92   92   92   92   92   92   92   92   92   92   92   92   92   92
+  92   92   92   92   113   113   113   113   113   113   113   113   113
+  113   113   113   113   113   113   113   113   113   113   113   113   134
+  134   134   134   134   134   134   134   134   134   134   134   134   134
+  134   134   134   134   134   134   154   154   154   154   154   154   154
+  154   154   154   154   154   154   154   154   154   170   170   170   170
+  170   170   170   170   170   170   170   170   170   170   170   170   170
+  170   170   170   170   170}
+
+do_execsql_test 1.11.5.6 {
+  SELECT rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   15   15   15   15
+  15   15   15   15   15   15   15   15   15   15   15   15   31   31   31
+  31   31   31   31   31   31   31   31   31   31   31   31   31   31   31
+  31   50   50   50   50   50   50   50   50   50   50   50   50   50   50
+  50   50   50   50   50   50   50   71   71   71   71   71   71   71   71
+  71   71   71   71   71   71   71   71   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   22   22   22   22   22   22
+  22   22   22   22   22   22   22   22   22   22   22   22   22   22   22
+  43   43   43   43   43   43   43   43   43   43   43   43   43   43   43
+  43   43   43   43   43   43   64   64   64   64   64   64   64   64   64
+  64   64   64   64   64   64   64   64   64   64   64   84   84   84   84
+  84   84   84   84   84   84   84   84   84   84   84   84   84   84   84
+  84   84   84}
+
+do_execsql_test 1.11.6.1 {
+  SELECT 
+      row_number() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ),
+      rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ),
+      dense_rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING )
+    FROM t2
+} {1 1 1   2 1 1   3 1 1   4 1 1   5 1 1   6 1 1   7 1 1   8 1 1   9 1 1
+  10 1 1   11 1 1   12 1 1   13 1 1   14 1 1   15 15 2   16 15 2   17 15 2
+  18 15 2   19 15 2   20 15 2   21 15 2   22 15 2   23 15 2   24 15 2
+  25 15 2   26 15 2   27 15 2   28 15 2   29 15 2   30 15 2   31 31 3
+  32 31 3   33 31 3   34 31 3   35 31 3   36 31 3   37 31 3   38 31 3
+  39 31 3   40 31 3   41 31 3   42 31 3   43 31 3   44 31 3   45 31 3
+  46 31 3   47 31 3   48 31 3   49 31 3   50 50 4   51 50 4   52 50 4
+  53 50 4   54 50 4   55 50 4   56 50 4   57 50 4   58 50 4   59 50 4
+  60 50 4   61 50 4   62 50 4   63 50 4   64 50 4   65 50 4   66 50 4
+  67 50 4   68 50 4   69 50 4   70 50 4   71 71 5   72 71 5   73 71 5
+  74 71 5   75 71 5   76 71 5   77 71 5   78 71 5   79 71 5   80 71 5
+  81 71 5   82 71 5   83 71 5   84 71 5   85 71 5   86 71 5   1 1 1   2 1 1
+  3 1 1   4 1 1   5 1 1   6 1 1   7 1 1   8 1 1   9 1 1   10 1 1   11 1 1
+  12 1 1   13 1 1   14 1 1   15 1 1   16 1 1   17 1 1   18 1 1   19 1 1
+  20 1 1   21 1 1   22 22 2   23 22 2   24 22 2   25 22 2   26 22 2   27 22 2
+  28 22 2   29 22 2   30 22 2   31 22 2   32 22 2   33 22 2   34 22 2
+  35 22 2   36 22 2   37 22 2   38 22 2   39 22 2   40 22 2   41 22 2
+  42 22 2   43 43 3   44 43 3   45 43 3   46 43 3   47 43 3   48 43 3
+  49 43 3   50 43 3   51 43 3   52 43 3   53 43 3   54 43 3   55 43 3
+  56 43 3   57 43 3   58 43 3   59 43 3   60 43 3   61 43 3   62 43 3
+  63 43 3   64 64 4   65 64 4   66 64 4   67 64 4   68 64 4   69 64 4
+  70 64 4   71 64 4   72 64 4   73 64 4   74 64 4   75 64 4   76 64 4
+  77 64 4   78 64 4   79 64 4   80 64 4   81 64 4   82 64 4   83 64 4
+  84 84 5   85 84 5   86 84 5   87 84 5   88 84 5   89 84 5   90 84 5
+  91 84 5   92 84 5   93 84 5   94 84 5   95 84 5   96 84 5   97 84 5
+  98 84 5   99 84 5   100 84 5   101 84 5   102 84 5   103 84 5   104 84 5
+  105 84 5}
+
+
+do_test 1.11.7.1 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0053 0.0105 0.0158 0.0211 0.0263 0.0316 0.0368 0.0421 0.0474 0.0526 0.0579 0.0632 0.0684 0.0737 0.0789 0.0842 0.0895 0.0947 0.1000 0.1053 0.1105 0.1158 0.1211 0.1263 0.1316 0.1368 0.1421 0.1474 0.1526 0.1579 0.1632 0.1684 0.1737 0.1789 0.1842 0.1895 0.1947 0.2000 0.2053 0.2105 0.2158 0.2211 0.2263 0.2316 0.2368 0.2421 0.2474 0.2526 0.2579 0.2632 0.2684 0.2737 0.2789 0.2842 0.2895 0.2947 0.3000 0.3053 0.3105 0.3158 0.3211 0.3263 0.3316 0.3368 0.3421 0.3474 0.3526 0.3579 0.3632 0.3684 0.3737 0.3789 0.3842 0.3895 0.3947 0.4000 0.4053 0.4105 0.4158 0.4211 0.4263 0.4316 0.4368 0.4421 0.4474 0.4526 0.4579 0.4632 0.4684 0.4737 0.4789 0.4842 0.4895 0.4947 0.5000 0.5053 0.5105 0.5158 0.5211 0.5263 0.5316 0.5368 0.5421 0.5474 0.5526 0.5579 0.5632 0.5684 0.5737 0.5789 0.5842 0.5895 0.5947 0.6000 0.6053 0.6105 0.6158 0.6211 0.6263 0.6316 0.6368 0.6421 0.6474 0.6526 0.6579 0.6632 0.6684 0.6737 0.6789 0.6842 0.6895 0.6947 0.7000 0.7053 0.7105 0.7158 0.7211 0.7263 0.7316 0.7368 0.7421 0.7474 0.7526 0.7579 0.7632 0.7684 0.7737 0.7789 0.7842 0.7895 0.7947 0.8000 0.8053 0.8105 0.8158 0.8211 0.8263 0.8316 0.8368 0.8421 0.8474 0.8526 0.8579 0.8632 0.8684 0.8737 0.8789 0.8842 0.8895 0.8947 0.9000 0.9053 0.9105 0.9158 0.9211 0.9263 0.9316 0.9368 0.9421 0.9474 0.9526 0.9579 0.9632 0.9684 0.9737 0.9789 0.9842 0.9895 0.9947 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.11.7.2 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0769 0.1538 0.2308 0.3077 0.3846 0.4615 0.5385 0.6154 0.6923 0.7692 0.8462 0.9231 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0667 0.1333 0.2000 0.2667 0.3333 0.4000 0.4667 0.5333 0.6000 0.6667 0.7333 0.8000 0.8667 0.9333 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0556 0.1111 0.1667 0.2222 0.2778 0.3333 0.3889 0.4444 0.5000 0.5556 0.6111 0.6667 0.7222 0.7778 0.8333 0.8889 0.9444 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0526 0.1053 0.1579 0.2105 0.2632 0.3158 0.3684 0.4211 0.4737 0.5263 0.5789 0.6316 0.6842 0.7368 0.7895 0.8421 0.8947 0.9474 1.0000 0.0000 0.0667 0.1333 0.2000 0.2667 0.3333 0.4000 0.4667 0.5333 0.6000 0.6667 0.7333 0.8000 0.8667 0.9333 1.0000 0.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.11.7.3 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY b ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0105 0.0105 0.0211 0.0211 0.0316 0.0368 0.0421 0.0474 0.0474 0.0474 0.0632 0.0632 0.0632 0.0789 0.0789 0.0789 0.0947 0.1000 0.1000 0.1105 0.1105 0.1105 0.1263 0.1263 0.1368 0.1421 0.1421 0.1421 0.1579 0.1579 0.1579 0.1737 0.1789 0.1842 0.1895 0.1895 0.2000 0.2000 0.2105 0.2105 0.2211 0.2263 0.2316 0.2316 0.2421 0.2421 0.2526 0.2579 0.2579 0.2579 0.2737 0.2737 0.2737 0.2895 0.2895 0.3000 0.3053 0.3053 0.3053 0.3053 0.3263 0.3263 0.3263 0.3263 0.3474 0.3474 0.3579 0.3579 0.3579 0.3579 0.3789 0.3789 0.3895 0.3895 0.4000 0.4000 0.4000 0.4158 0.4211 0.4211 0.4316 0.4368 0.4368 0.4474 0.4474 0.4579 0.4579 0.4684 0.4684 0.4684 0.4684 0.4895 0.4947 0.5000 0.5053 0.5105 0.5158 0.5211 0.5211 0.5316 0.5316 0.5316 0.5474 0.5526 0.5526 0.5526 0.5526 0.5737 0.5737 0.5737 0.5737 0.5947 0.6000 0.6000 0.6105 0.6105 0.6211 0.6263 0.6316 0.6316 0.6316 0.6474 0.6526 0.6579 0.6632 0.6684 0.6737 0.6737 0.6737 0.6895 0.6895 0.6895 0.7053 0.7053 0.7053 0.7211 0.7211 0.7211 0.7368 0.7421 0.7421 0.7526 0.7526 0.7632 0.7684 0.7684 0.7789 0.7789 0.7789 0.7947 0.8000 0.8053 0.8053 0.8053 0.8053 0.8263 0.8263 0.8263 0.8421 0.8474 0.8474 0.8579 0.8632 0.8632 0.8632 0.8789 0.8789 0.8789 0.8947 0.8947 0.8947 0.8947 0.8947 0.9211 0.9211 0.9211 0.9368 0.9421 0.9421 0.9421 0.9579 0.9579 0.9579 0.9737 0.9737 0.9842 0.9842 0.9947 0.9947}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.11.7.4 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0769 0.1538 0.1538 0.1538 0.3846 0.4615 0.5385 0.6154 0.6923 0.6923 0.8462 0.8462 0.8462 0.0000 0.0000 0.1000 0.1000 0.2000 0.2000 0.3000 0.3000 0.4000 0.4000 0.5000 0.5500 0.5500 0.6500 0.6500 0.6500 0.8000 0.8000 0.8000 0.8000 0.8000 0.0000 0.0000 0.1333 0.1333 0.1333 0.3333 0.3333 0.4667 0.5333 0.6000 0.6667 0.6667 0.8000 0.8000 0.8000 1.0000 0.0000 0.0000 0.1000 0.1000 0.2000 0.2000 0.3000 0.3000 0.3000 0.3000 0.5000 0.5000 0.6000 0.6500 0.7000 0.7000 0.7000 0.8500 0.9000 0.9000 0.9000 0.0000 0.0556 0.1111 0.1667 0.1667 0.1667 0.1667 0.3889 0.3889 0.5000 0.5556 0.6111 0.6111 0.6111 0.7778 0.7778 0.7778 0.7778 1.0000 0.0000 0.0500 0.0500 0.0500 0.2000 0.2500 0.2500 0.3500 0.3500 0.4500 0.4500 0.4500 0.6000 0.6000 0.6000 0.7500 0.7500 0.7500 0.9000 0.9000 0.9000 0.0000 0.0500 0.0500 0.0500 0.2000 0.2000 0.3000 0.3000 0.3000 0.3000 0.5000 0.5000 0.6000 0.6000 0.6000 0.7500 0.8000 0.8500 0.9000 0.9000 0.9000 0.0000 0.0000 0.0000 0.1579 0.2105 0.2105 0.3158 0.3158 0.4211 0.4211 0.4211 0.4211 0.6316 0.6842 0.7368 0.7368 0.8421 0.8421 0.9474 0.9474 0.0000 0.0000 0.0000 0.2000 0.2667 0.2667 0.4000 0.4000 0.4000 0.4000 0.6667 0.7333 0.7333 0.8667 0.9333 0.9333 0.0000 0.0000 0.0000 0.1429 0.1905 0.1905 0.1905 0.3333 0.3333 0.3333 0.4762 0.5238 0.5238 0.5238 0.5238 0.7143 0.7619 0.8095 0.8095 0.8095 0.9524 0.9524}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.11.7.5 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.11.7.6 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER (PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.11.8.1 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0052 0.0105 0.0157 0.0209 0.0262 0.0314 0.0366 0.0419 0.0471 0.0524 0.0576 0.0628 0.0681 0.0733 0.0785 0.0838 0.0890 0.0942 0.0995 0.1047 0.1099 0.1152 0.1204 0.1257 0.1309 0.1361 0.1414 0.1466 0.1518 0.1571 0.1623 0.1675 0.1728 0.1780 0.1832 0.1885 0.1937 0.1990 0.2042 0.2094 0.2147 0.2199 0.2251 0.2304 0.2356 0.2408 0.2461 0.2513 0.2565 0.2618 0.2670 0.2723 0.2775 0.2827 0.2880 0.2932 0.2984 0.3037 0.3089 0.3141 0.3194 0.3246 0.3298 0.3351 0.3403 0.3455 0.3508 0.3560 0.3613 0.3665 0.3717 0.3770 0.3822 0.3874 0.3927 0.3979 0.4031 0.4084 0.4136 0.4188 0.4241 0.4293 0.4346 0.4398 0.4450 0.4503 0.4555 0.4607 0.4660 0.4712 0.4764 0.4817 0.4869 0.4921 0.4974 0.5026 0.5079 0.5131 0.5183 0.5236 0.5288 0.5340 0.5393 0.5445 0.5497 0.5550 0.5602 0.5654 0.5707 0.5759 0.5812 0.5864 0.5916 0.5969 0.6021 0.6073 0.6126 0.6178 0.6230 0.6283 0.6335 0.6387 0.6440 0.6492 0.6545 0.6597 0.6649 0.6702 0.6754 0.6806 0.6859 0.6911 0.6963 0.7016 0.7068 0.7120 0.7173 0.7225 0.7277 0.7330 0.7382 0.7435 0.7487 0.7539 0.7592 0.7644 0.7696 0.7749 0.7801 0.7853 0.7906 0.7958 0.8010 0.8063 0.8115 0.8168 0.8220 0.8272 0.8325 0.8377 0.8429 0.8482 0.8534 0.8586 0.8639 0.8691 0.8743 0.8796 0.8848 0.8901 0.8953 0.9005 0.9058 0.9110 0.9162 0.9215 0.9267 0.9319 0.9372 0.9424 0.9476 0.9529 0.9581 0.9634 0.9686 0.9738 0.9791 0.9843 0.9895 0.9948 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.11.8.2 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0714 0.1429 0.2143 0.2857 0.3571 0.4286 0.5000 0.5714 0.6429 0.7143 0.7857 0.8571 0.9286 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0625 0.1250 0.1875 0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250 0.6875 0.7500 0.8125 0.8750 0.9375 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0526 0.1053 0.1579 0.2105 0.2632 0.3158 0.3684 0.4211 0.4737 0.5263 0.5789 0.6316 0.6842 0.7368 0.7895 0.8421 0.8947 0.9474 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0625 0.1250 0.1875 0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250 0.6875 0.7500 0.8125 0.8750 0.9375 1.0000 0.0455 0.0909 0.1364 0.1818 0.2273 0.2727 0.3182 0.3636 0.4091 0.4545 0.5000 0.5455 0.5909 0.6364 0.6818 0.7273 0.7727 0.8182 0.8636 0.9091 0.9545 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.11.8.3 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY b ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0105 0.0105 0.0209 0.0209 0.0314 0.0314 0.0366 0.0419 0.0471 0.0628 0.0628 0.0628 0.0785 0.0785 0.0785 0.0942 0.0942 0.0942 0.0995 0.1099 0.1099 0.1257 0.1257 0.1257 0.1361 0.1361 0.1414 0.1571 0.1571 0.1571 0.1728 0.1728 0.1728 0.1780 0.1832 0.1885 0.1990 0.1990 0.2094 0.2094 0.2199 0.2199 0.2251 0.2304 0.2408 0.2408 0.2513 0.2513 0.2565 0.2723 0.2723 0.2723 0.2880 0.2880 0.2880 0.2984 0.2984 0.3037 0.3246 0.3246 0.3246 0.3246 0.3455 0.3455 0.3455 0.3455 0.3560 0.3560 0.3770 0.3770 0.3770 0.3770 0.3874 0.3874 0.3979 0.3979 0.4136 0.4136 0.4136 0.4188 0.4293 0.4293 0.4346 0.4450 0.4450 0.4555 0.4555 0.4660 0.4660 0.4869 0.4869 0.4869 0.4869 0.4921 0.4974 0.5026 0.5079 0.5131 0.5183 0.5288 0.5288 0.5445 0.5445 0.5445 0.5497 0.5707 0.5707 0.5707 0.5707 0.5916 0.5916 0.5916 0.5916 0.5969 0.6073 0.6073 0.6178 0.6178 0.6230 0.6283 0.6440 0.6440 0.6440 0.6492 0.6545 0.6597 0.6649 0.6702 0.6859 0.6859 0.6859 0.7016 0.7016 0.7016 0.7173 0.7173 0.7173 0.7330 0.7330 0.7330 0.7382 0.7487 0.7487 0.7592 0.7592 0.7644 0.7749 0.7749 0.7906 0.7906 0.7906 0.7958 0.8010 0.8220 0.8220 0.8220 0.8220 0.8377 0.8377 0.8377 0.8429 0.8534 0.8534 0.8586 0.8743 0.8743 0.8743 0.8901 0.8901 0.8901 0.9162 0.9162 0.9162 0.9162 0.9162 0.9319 0.9319 0.9319 0.9372 0.9529 0.9529 0.9529 0.9686 0.9686 0.9686 0.9791 0.9791 0.9895 0.9895 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.11.8.4 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0714 0.1429 0.3571 0.3571 0.3571 0.4286 0.5000 0.5714 0.6429 0.7857 0.7857 1.0000 1.0000 1.0000 0.0952 0.0952 0.1905 0.1905 0.2857 0.2857 0.3810 0.3810 0.4762 0.4762 0.5238 0.6190 0.6190 0.7619 0.7619 0.7619 1.0000 1.0000 1.0000 1.0000 1.0000 0.1250 0.1250 0.3125 0.3125 0.3125 0.4375 0.4375 0.5000 0.5625 0.6250 0.7500 0.7500 0.9375 0.9375 0.9375 1.0000 0.0952 0.0952 0.1905 0.1905 0.2857 0.2857 0.4762 0.4762 0.4762 0.4762 0.5714 0.5714 0.6190 0.6667 0.8095 0.8095 0.8095 0.8571 1.0000 1.0000 1.0000 0.0526 0.1053 0.1579 0.3684 0.3684 0.3684 0.3684 0.4737 0.4737 0.5263 0.5789 0.7368 0.7368 0.7368 0.9474 0.9474 0.9474 0.9474 1.0000 0.0476 0.1905 0.1905 0.1905 0.2381 0.3333 0.3333 0.4286 0.4286 0.5714 0.5714 0.5714 0.7143 0.7143 0.7143 0.8571 0.8571 0.8571 1.0000 1.0000 1.0000 0.0476 0.1905 0.1905 0.1905 0.2857 0.2857 0.4762 0.4762 0.4762 0.4762 0.5714 0.5714 0.7143 0.7143 0.7143 0.7619 0.8095 0.8571 1.0000 1.0000 1.0000 0.1500 0.1500 0.1500 0.2000 0.3000 0.3000 0.4000 0.4000 0.6000 0.6000 0.6000 0.6000 0.6500 0.7000 0.8000 0.8000 0.9000 0.9000 1.0000 1.0000 0.1875 0.1875 0.1875 0.2500 0.3750 0.3750 0.6250 0.6250 0.6250 0.6250 0.6875 0.8125 0.8125 0.8750 1.0000 1.0000 0.1364 0.1364 0.1364 0.1818 0.3182 0.3182 0.3182 0.4545 0.4545 0.4545 0.5000 0.6818 0.6818 0.6818 0.6818 0.7273 0.7727 0.9091 0.9091 0.9091 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.11.8.5 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.11.8.6 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.11.8.1 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(100) OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 88.0000 89.0000 89.0000 90.0000 90.0000 91.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.11.8.2 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(101) OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 22.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.11.8.3 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(102) OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 88.0000 89.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.11.8.4 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(103) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 22.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.11.8.5 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(104) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000 103.0000 104.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.11.8.6 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(105) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.11.8.7 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(105) OVER ( ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 88.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000 103.0000 104.0000 105.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+do_execsql_test 1.11.9.1 {
+  SELECT last_value(a+b) OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2
+} {108   72   52   83   55   79   109   65   26   120   119   50   70   103
+  80   124   36   96   59   124   116   110   57   51   52   130   103   74
+  87   48   128   117   105   136   131   71   133   92   109   63   84   109
+  57   146   78   147   113   74   88   150   87   110   65   121   106   110
+  124   85   145   107   161   171   150   156   80   171   120   109   158
+  114   111   136   147   87   173   124   168   173   162   132   101   154
+  167   190   161   110   156   195   198   102   123   177   169   140   111
+  180   119   160   197   152   124   121   134   146   147   132   213   141
+  193   200   210   157   132   136   175   161   218   188   226   191   187
+  208   211   179   138   144   223   196   214   170   212   202   163   184
+  172   173   195   229   240   187   210   200   163   227   228   223   191
+  252   235   225   243   172   187   202   179   179   182   231   261   207
+  263   206   189   209   212   276   181   274   249   239   234   213   234
+  269   196   271   221   210   229   235   250   223   232   229   279   224
+  280   216   207   207   207}
+
+do_execsql_test 1.11.9.2 {
+  SELECT last_value(a+b) OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2
+} {109   168   134   218   191   212   229   240   213   234   196   223   223
+  223   105   136   146   65   156   132   154   102   123   119   160   152
+  146   147   136   243   261   263   210   210   210   84   78   120   87
+  162   124   141   138   227   228   179   231   234   280   280   280   130
+  92   57   110   114   136   147   167   110   180   193   191   252   187
+  179   206   181   221   279   279   279   117   71   80   171   173   177
+  157   161   179   214   225   182   209   269   271   235   229   229   229
+  131   133   113   74   87   145   190   161   169   140   111   132   213
+  187   208   223   235   189   274   274   274   26   70   51   52   128
+  109   121   124   85   107   150   195   226   172   173   187   223   207
+  212   212   212   124   96   110   87   48   110   173   124   197   211
+  144   196   195   200   202   224   216   207   207   207   103   36   88
+  171   158   156   198   121   210   132   210   239   250   232   232   232
+  55   120   59   109   150   161   111   101   200   175   188   170   202
+  163   184   163   172   276   249   229   229   229}
+
+do_execsql_test 1.11.9.3 {
+  SELECT last_value(a+b) OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2
+} {87   138   57   181   80   111   26   48   144   207   36   121   132   101
+  163   172   196   119   136   63   124   179   110   179   182   74   132
+  189   51   52   85   216   163   134   123   210   78   141   57   187   71
+  87   172   173   50   224   88   59   111   170   109   213   223   146
+  147   84   114   191   206   221   157   161   209   229   74   140   107
+  187   207   212   124   202   52   232   55   184   229   106   132   152
+  120   92   110   179   235   65   70   87   110   195   200   175   234
+  160   234   136   80   113   187   109   121   124   196   156   210   239
+  250   72   109   188   202   191   105   154   79   231   147   225   103
+  161   169   223   96   83   249   212   162   227   228   167   180   193
+  117   177   214   145   208   235   150   110   211   103   158   200   168
+  229   92   156   243   280   279   116   173   269   271   131   133   223
+  128   173   197   210   99   150   161   147   218   240   109   136   146
+  261   263   124   130   252   171   190   213   274   108   195   226   119
+  124   171   198   120   276   276   276}
+
+do_execsql_test 1.11.9.4 {
+  SELECT last_value(a+b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2
+} {109   213   223   106   234   191   212   168   229   147   218   240   240
+  240   119   136   123   210   146   147   132   152   160   105   154   92
+  156   243   109   136   146   261   263   263   263   63   124   179   78
+  141   84   120   234   79   231   162   227   228   280   280   280   110
+  179   57   187   114   191   206   221   92   110   136   147   167   180
+  193   279   124   130   252   252   252   71   157   161   209   229   179
+  235   80   225   117   177   214   116   173   269   271   171   171   171
+  132   189   87   74   140   113   187   103   161   169   145   208   235
+  131   133   223   190   213   274   274   274   52   85   172   173   107
+  187   207   212   65   70   109   121   124   223   150   128   108   195
+  226   226   226   207   216   50   224   124   202   87   110   195   200
+  196   96   110   211   173   197   119   124   124   124   132   88   52
+  232   156   210   239   250   83   103   158   210   171   198   198   198
+  172   163   59   111   170   55   184   229   175   72   109   188   202
+  249   200   99   150   161   120   276   276   276}
+
+do_execsql_test 1.11.9.5 {
+  SELECT last_value(a+b) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2
+} {109   168   134   218   191   212   229   240   213   234   196   223   92
+  109   105   136   146   65   156   132   154   102   123   119   160   152
+  146   147   136   243   261   263   210   79   63   84   78   120   87
+  162   124   141   138   227   228   179   231   234   280   124   57   130
+  92   57   110   114   136   147   167   110   180   193   191   252   187
+  179   206   181   221   279   80   116   117   71   80   171   173   177
+  157   161   179   214   225   182   209   269   271   235   229   103   74
+  131   133   113   74   87   145   190   161   169   140   111   132   213
+  187   208   223   235   189   274   108   65   26   70   51   52   128
+  109   121   124   85   107   150   195   226   172   173   187   223   207
+  212   119   50   124   96   110   87   48   110   173   124   197   211
+  144   196   195   200   202   224   216   207   52   83   103   36   88
+  171   158   156   198   121   210   132   210   239   250   232   99   72
+  55   120   59   109   150   161   111   101   200   175   188   170   202
+  163   184   163   172   276   249   229   229   229}
+
+do_execsql_test 1.11.9.6 {
+  SELECT last_value(a+b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING) FROM t2
+} {108   52   83   79   65   26   70   103   80   36   116   51   52   128
+  117   71   63   84   109   78   147   88   121   106   124   85   107   171
+  150   80   171   120   109   158   87   168   173   162   156   195   198
+  177   124   121   134   141   210   157   132   161   218   226   191   179
+  138   214   212   172   173   229   240   187   210   227   228   223   225
+  179   182   231   207   209   212   239   234   213   234   269   196   271
+  235   250   223   232   229   280   99   92   72   55   109   120   119
+  50   124   96   59   124   110   57   130   103   74   87   48   105   136
+  131   133   92   109   57   146   113   74   150   87   110   65   110
+  145   161   156   114   111   136   147   173   124   132   101   154   167
+  190   161   110   102   123   169   140   111   180   119   160   197   152
+  146   147   132   213   193   200   136   175   188   187   208   211   144
+  223   196   170   202   163   184   195   200   163   191   252   235   243
+  172   187   202   179   261   263   206   189   276   181   274   249   221
+  210   229   279   224   216   207}
+
+do_execsql_test 1.11.10.1 {
+  SELECT nth_value(b,b+1) OVER (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   97   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   56
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   89   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   4   {}   {}   {}   {}   {}   {}   {}   {}
+  53   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   58   {}   {}   {}   {}   73   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   77   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   99   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.11.10.2 {
+  SELECT nth_value(b,b+1) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   61   {}   {}   {}   81   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   22   {}   {}   {}   12
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   43   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   33   {}   {}   {}   {}   {}
+  {}   4   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   15   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.11.10.3 {
+  SELECT nth_value(b,b+1) OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2
+} {1   1   2   2   2   3   4   6   7   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.11.10.4 {
+  SELECT nth_value(b,b+1) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   1   1
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   12   12   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   13   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.11.10.5 {
+  SELECT nth_value(b,b+1) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   61   {}   {}   {}   81   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   22   {}   {}   {}   12
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   43   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   33   {}   {}   {}   {}   {}
+  {}   4   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   15   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   16   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.11.10.6 {
+  SELECT nth_value(b,b+1) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.11.11.1 {
+  SELECT first_value(b) OVER (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING) FROM t2
+} {89   89   89   89   89   81   96   59   38   68   39   62   91   46   6
+  99   97   27   46   78   54   97   8   67   29   93   84   77   23   16
+  16   93   65   35   47   7   86   74   61   91   85   24   85   43   59
+  12   32   56   3   91   22   90   55   15   28   89   25   47   1   56   40
+  43   56   16   75   36   89   98   76   81   4   94   42   30   78   33
+  29   53   63   2   87   37   80   84   72   41   9   61   73   95   65   13
+  58   96   98   1   21   74   65   35   5   73   11   51   87   41   12   8
+  20   31   31   15   95   22   73   79   88   34   8   11   49   34   90
+  59   96   60   55   75   77   44   2   7   85   57   74   29   70   59   19
+  39   26   26   47   80   90   36   58   47   9   72   72   66   33   93
+  75   64   81   9   23   37   13   12   14   62   91   36   91   33   15
+  34   36   99   3   95   69   58   52   30   50   84   10   84   33   21
+  39   44   58   30   38   34   83}
+
+do_execsql_test 1.11.11.2 {
+  SELECT first_value(b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING) FROM t2
+} {90   90   90   90   90   40   30   80   20   90   60   70   80   90   81
+  81   81   81   81   91   61   91   91   1   81   41   61   1   21   11   51
+  41   31   31   11   62   62   62   62   62   12   32   22   42   2   72
+  12   22   2   72   72   93   93   93   93   93   23   93   43   3   43   33
+  53   63   73   13   73   73   33   93   23   13   54   54   54   54   54
+  84   74   24   4   94   84   74   34   34   44   74   64   14   34   65
+  65   65   65   65   35   85   85   55   15   25   75   95   65   65   35
+  5   15   95   55   75   96   96   96   96   96   46   6   46   16   16   86
+  56   56   56   16   36   76   96   96   26   26   97   97   97   97   97
+  27   97   67   77   47   7   47   87   37   87   77   7   57   47   47   38
+  38   38   38   38   68   78   8   28   98   78   58   98   8   88   8   89
+  89   89   89   89   59   39   99   29   59   89   89   29   9   79   49
+  59   29   59   19   39   9}
+
+do_execsql_test 1.11.11.3 {
+  SELECT first_value(b) OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   2   2   3   3   4   5   6   7   7   7   8   8   8
+  9   9   9   10   11   11   12   12   12   13   13   14   15   15   15   16
+  16   16   17   19   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   30   30   30   31   31   32   33   33   33
+  33   34   34   34   34   35   35   36   36   36   36   37   37   38   38
+  39   39   39   40   41   41   42   43   43   44   44   46   46   47   47
+  47   47   49   50   51   52   53   54   55   55   56   56   56   57   58
+  58   58   58   59   59   59   59   60   61   61   62   62   63   64   65
+  65   65   66   67   68   69   70   72   72   72   73   73   73   74   74
+  74   75   75   75   76   77   77   78   78   79   80   80   81   81   81
+  82   83   84   84   84   84   85   85   85   86   87   87   88   89   89
+  89   90   90   90   91   91   91   91   91   93   93   93   94   95   95
+  95   96   96   96   97   97}
+
+do_execsql_test 1.11.11.4 {
+  SELECT first_value(b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2
+} {10   10   10   10   10   20   30   30   30   40   50   60   70   80   1   1
+  1   1   1   1   11   11   21   21   31   31   41   41   51   61   61   81
+  81   81   91   2   2   2   2   2   2   12   12   12   22   22   32   42
+  52   62   62   3   3   3   3   3   3   13   13   23   23   33   33   33
+  33   43   43   53   63   73   73   73   4   4   4   4   4   14   24   34
+  34   34   34   44   44   54   64   74   74   74   84   5   5   5   5   5
+  15   15   15   25   35   35   55   55   65   65   65   75   75   75   85
+  85   6   6   6   6   6   16   16   16   26   26   36   36   36   36   46
+  46   56   56   56   66   76   7   7   7   7   7   7   7   17   27   27   37
+  37   47   47   47   47   57   67   77   77   8   8   8   8   8   8   8   28
+  38   38   58   58   58   58   68   78   9   9   9   9   9   9   9   19   29
+  29   29   39   39   39   49   59   59   59   59   69   79   89}
+
+do_execsql_test 1.11.11.5 {
+  SELECT first_value(b) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2
+} {90   90   90   90   90   40   30   80   20   90   60   70   80   90   30
+  50   10   30   81   91   61   91   91   1   81   41   61   1   21   11   51
+  41   31   31   11   81   91   91   21   62   12   32   22   42   2   72
+  12   22   2   72   72   12   62   52   82   93   23   93   43   3   43   33
+  53   63   73   13   73   73   33   93   23   13   33   3   33   83   54
+  84   74   24   4   94   84   74   34   34   44   74   64   14   34   84
+  84   44   34   65   35   85   85   55   15   25   75   95   65   65   35
+  5   15   95   55   75   85   75   15   95   96   46   6   46   16   16   86
+  56   56   56   16   36   76   96   96   26   26   36   66   36   36   97
+  27   97   67   77   47   7   47   87   37   87   77   7   57   47   47   37
+  27   17   7   38   68   78   8   28   98   78   58   98   8   88   8   58
+  58   58   38   89   59   39   99   29   59   89   89   29   9   79   49
+  59   29   59   19   39   9}
+
+do_execsql_test 1.11.11.6 {
+  SELECT first_value(b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING) FROM t2
+} {96   38   68   62   46   6   46   78   54   8   84   16   16   86   74   24
+  12   32   56   22   90   28   56   40   56   16   36   98   76   4   94
+  42   30   78   2   80   84   72   58   96   98   74   12   8   20   22   88
+  34   8   34   90   96   60   44   2   74   70   26   26   80   90   36   58
+  72   72   66   64   12   14   62   36   34   36   58   52   30   50   84
+  10   84   44   58   30   38   34   82   89   81   59   39   91   99   97
+  27   97   67   29   93   77   23   93   65   35   47   7   61   91   85
+  85   43   59   3   91   55   15   89   25   47   1   43   75   89   81   33
+  29   53   63   87   37   41   9   61   73   95   65   13   1   21   65   35
+  5   73   11   51   87   41   31   31   15   95   73   79   11   49   59
+  55   75   77   7   85   57   29   59   19   39   47   47   9   33   93   75
+  81   9   23   37   13   91   91   33   15   99   3   95   69   33   21   39
+  83   27   17   7}
+
+do_execsql_test 1.11.12.1 {
+  SELECT lead(b,b) OVER (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING) FROM t2
+} {96   9   11   89   32   53   91   30   51   56   54   73   22   59   75
+  74   78   8   16   65   15   8   31   87   90   12   32   96   74   76   37
+  85   90   15   35   2   60   36   75   9   51   47   63   51   90   26   42
+  26   8   76   80   90   37   87   56   79   5   87   8   2   39   73   64
+  36   90   72   78   36   73   51   33   20   41   2   26   37   33   8   14
+  33   81   55   1   9   12   39   64   87   72   34   82   21   34   99   62
+  74   41   69   22   75   27   58   8   79   77   26   26   55   {}   29
+  30   7   {}   66   55   2   34   64   {}   33   {}   44   84   {}   {}   95
+  85   19   {}   83   {}   91   {}   {}   9   50   91   33   34   {}   {}
+  84   {}   7   9   {}   {}   {}   44   {}   {}   {}   {}   91   84   {}   95
+  95   52   {}   {}   {}   {}   {}   21   {}   {}   {}   58   {}   {}   {}
+  {}   {}   {}   {}   83   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}}
+
+do_execsql_test 1.11.12.2 {
+  SELECT lead(b,b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   81   {}   {}   {}   21   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   62   {}   {}   {}   12   {}   {}   {}   72
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   53   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   34   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   95   {}   {}   {}   {}   {}   {}   85   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   56   {}   36   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   57   {}   {}   {}   {}   {}   7   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   8   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.11.12.3 {
+  SELECT lead(b,b) OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2
+} {1   2   3   3   5   6   7   8   8   9   9   10   11   12   12   13   13
+  14   15   16   16   17   19   20   21   22   23   24   25   26   27   27
+  28   29   30   31   32   33   33   33   34   34   35   36   36   36   37
+  38   39   39   40   41   42   43   43   44   46   47   47   47   49   50
+  52   53   54   55   56   56   57   58   58   58   59   59   59   60   61
+  62   62   64   65   65   67   69   70   72   72   73   74   74   75   75
+  75   77   78   80   81   81   83   84   84   85   85   85   87   88   89
+  89   89   90   90   91   91   91   93   93   94   95   95   96   97   97
+  98   99   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.11.12.4 {
+  SELECT lead(b,b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2
+} {80   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   1
+  11   81   81   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   12   12   72   82   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   13   23   73   73   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   34   84   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   35   85   85   95   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   36   86   96   96   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   37   47
+  47   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   58   58   68   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   39   49   59   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.11.12.5 {
+  SELECT lead(b,b) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2
+} {34   72   91   74   21   55   23   94   84   95   2   13   61   22   55
+  55   94   85   75   81   65   73   74   21   72   12   94   33   63   73
+  72   96   36   76   3   25   62   3   73   34   12   46   43   93   72   16
+  86   63   15   65   36   77   24   57   25   53   95   34   95   16   97
+  74   97   67   25   98   44   34   65   54   5   68   96   28   47   95
+  34   39   8   38   6   46   96   28   47   95   56   39   99   97   76   8
+  26   9   79   27   95   16   29   {}   58   58   77   85   56   {}   98
+  29   {}   19   96   {}   {}   78   56   98   36   97   {}   89   89   29
+  47   78   {}   {}   {}   38   68   58   {}   58   38   {}   98   {}   {}
+  {}   39   57   9   {}   79   {}   {}   7   {}   {}   {}   9   29   38   78
+  {}   {}   {}   8   39   {}   {}   {}   {}   59   {}   99   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.11.12.6 {
+  SELECT lead(b,b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.11.13.1 {
+  SELECT lag(b,b) OVER (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   38   {}   {}   {}   {}
+  {}   {}   {}   6   {}   {}   {}   {}   {}   81   46   6   {}   {}   {}   {}
+  23   {}   {}   {}   {}   {}   27   {}   {}   {}   35   6   {}   12   {}
+  23   {}   {}   61   84   {}   93   39   47   {}   54   46   96   56   {}
+  16   {}   {}   {}   {}   89   {}   16   43   {}   85   56   29   99   53
+  {}   59   {}   {}   91   59   53   84   99   {}   93   63   47   {}   {}
+  98   33   67   35   75   1   23   13   55   27   75   98   35   73   63   2
+  21   27   13   24   86   23   84   31   20   94   61   65   75   23   36
+  94   55   90   41   77   96   56   29   40   12   89   63   11   5   73
+  79   1   16   28   31   73   5   39   53   63   41   11   40   2   13   33
+  9   29   90   47   72   9   73   30   44   33   74   93   29   74   42   34
+  63   41   34   96   47   77   1   36   74   72   14   36   26   77   9   72
+  64   8   91   31   52   30}
+
+do_execsql_test 1.11.13.2 {
+  SELECT lag(b,b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   61   {}   81   {}   {}   {}   {}
+  1   {}   {}   {}   {}   {}   {}   {}   {}   {}   22   {}   {}   {}   12
+  {}   {}   62   {}   {}   {}   {}   {}   {}   {}   23   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   43   {}   23   {}   {}   {}   {}   {}
+  {}   54   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   75   {}
+  {}   {}   {}   {}   {}   55   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   47   {}   {}   {}   {}
+  {}   27   7   {}   {}   {}   {}   {}   {}   {}   {}   {}   68   {}   8   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   89   {}   {}
+  {}   {}   {}   {}   {}   29   9   {}   {}   {}}
+
+do_execsql_test 1.11.13.3 {
+  SELECT lag(b,b) OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2
+} {{}   1   1   1   1   2   2   2   2   2   2   3   3   3   4   4   5   6   6
+  6   7   7   7   7   7   8   8   8   8   8   8   9   9   9   9   9   9   9
+  9   9   9   10   10   10   10   11   11   11   11   11   12   12   12   12
+  13   13   13   13   13   14   15   15   15   15   16   16   16   16   16
+  17   19   20   20   21   21   21   21   22   22   22   22   23   23   23
+  23   23   24   23   24   24   25   26   26   26   26   26   26   26   26
+  26   26   26   27   27   27   27   28   29   29   29   29   30   30   30
+  30   30   30   31   31   31   31   31   32   32   32   32   32   32   31
+  32   33   33   33   33   33   33   34   34   34   34   34   34   34   34
+  35   35   35   35   35   36   36   36   36   36   36   36   37   37   37
+  38   38   38   38   38   38   39   39   39   39   40   40   41   41   42
+  43   42   43   43   43   43   44   44   44   46   46   46   47   47   47
+  47   47}
+
+do_execsql_test 1.11.13.4 {
+  SELECT lag(b,b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  1   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.11.13.5 {
+  SELECT lag(b,b) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   61   80   81   {}   {}   {}   {}
+  1   {}   {}   {}   30   {}   21   90   61   {}   22   {}   11   41   12
+  {}   {}   62   {}   {}   {}   {}   31   {}   50   23   30   21   90   {}
+  {}   62   {}   {}   81   {}   22   43   62   23   32   {}   91   {}   90
+  93   54   {}   {}   90   72   12   22   90   81   83   23   80   20   72
+  43   51   33   80   90   2   34   54   1   20   62   12   13   75   44   30
+  93   91   1   21   55   61   61   13   85   3   65   65   91   73   33   93
+  55   84   62   31   11   65   35   85   33   55   15   12   75   22   3
+  73   65   36   85   43   95   43   13   47   44   65   65   96   36   27
+  7   46   34   94   47   36   73   34   35   73   68   24   8   75   85   75
+  66   34   95   36   84   77   46   34   84   47   89   65   36   16   38
+  76   58   57   29   9   44   56   17}
+
+do_execsql_test 1.11.13.6 {
+  SELECT lag(b,b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.11.14.1 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING) FROM t2
+} {89.81.96   89.81.96.59   89.81.96.59.38   89.81.96.59.38.68
+  89.81.96.59.38.68.39   81.96.59.38.68.39.62   96.59.38.68.39.62.91
+  59.38.68.39.62.91.46   38.68.39.62.91.46.6   68.39.62.91.46.6.99
+  39.62.91.46.6.99.97   62.91.46.6.99.97.27   91.46.6.99.97.27.46
+  46.6.99.97.27.46.78   6.99.97.27.46.78.54   99.97.27.46.78.54.97
+  97.27.46.78.54.97.8   27.46.78.54.97.8.67   46.78.54.97.8.67.29
+  78.54.97.8.67.29.93   54.97.8.67.29.93.84   97.8.67.29.93.84.77
+  8.67.29.93.84.77.23   67.29.93.84.77.23.16   29.93.84.77.23.16.16
+  93.84.77.23.16.16.93   84.77.23.16.16.93.65   77.23.16.16.93.65.35
+  23.16.16.93.65.35.47   16.16.93.65.35.47.7   16.93.65.35.47.7.86
+  93.65.35.47.7.86.74   65.35.47.7.86.74.61   35.47.7.86.74.61.91
+  47.7.86.74.61.91.85   7.86.74.61.91.85.24   86.74.61.91.85.24.85
+  74.61.91.85.24.85.43   61.91.85.24.85.43.59   91.85.24.85.43.59.12
+  85.24.85.43.59.12.32   24.85.43.59.12.32.56   85.43.59.12.32.56.3
+  43.59.12.32.56.3.91   59.12.32.56.3.91.22   12.32.56.3.91.22.90
+  32.56.3.91.22.90.55   56.3.91.22.90.55.15   3.91.22.90.55.15.28
+  91.22.90.55.15.28.89   22.90.55.15.28.89.25   90.55.15.28.89.25.47
+  55.15.28.89.25.47.1   15.28.89.25.47.1.56   28.89.25.47.1.56.40
+  89.25.47.1.56.40.43   25.47.1.56.40.43.56   47.1.56.40.43.56.16
+  1.56.40.43.56.16.75   56.40.43.56.16.75.36   40.43.56.16.75.36.89
+  43.56.16.75.36.89.98   56.16.75.36.89.98.76   16.75.36.89.98.76.81
+  75.36.89.98.76.81.4   36.89.98.76.81.4.94   89.98.76.81.4.94.42
+  98.76.81.4.94.42.30   76.81.4.94.42.30.78   81.4.94.42.30.78.33
+  4.94.42.30.78.33.29   94.42.30.78.33.29.53   42.30.78.33.29.53.63
+  30.78.33.29.53.63.2   78.33.29.53.63.2.87   33.29.53.63.2.87.37
+  29.53.63.2.87.37.80   53.63.2.87.37.80.84   63.2.87.37.80.84.72
+  2.87.37.80.84.72.41   87.37.80.84.72.41.9   37.80.84.72.41.9.61
+  80.84.72.41.9.61.73   84.72.41.9.61.73.95   72.41.9.61.73.95.65
+  41.9.61.73.95.65.13   9.61.73.95.65.13.58   61.73.95.65.13.58.96
+  73.95.65.13.58.96.98   95.65.13.58.96.98.1   65.13.58.96.98.1.21
+  13.58.96.98.1.21.74   58.96.98.1.21.74.65   96.98.1.21.74.65.35
+  98.1.21.74.65.35.5   1.21.74.65.35.5.73   21.74.65.35.5.73.11
+  74.65.35.5.73.11.51   65.35.5.73.11.51.87   35.5.73.11.51.87.41
+  5.73.11.51.87.41.12   73.11.51.87.41.12.8   11.51.87.41.12.8.20
+  51.87.41.12.8.20.31   87.41.12.8.20.31.31   41.12.8.20.31.31.15
+  12.8.20.31.31.15.95   8.20.31.31.15.95.22   20.31.31.15.95.22.73
+  31.31.15.95.22.73.79   31.15.95.22.73.79.88   15.95.22.73.79.88.34
+  95.22.73.79.88.34.8   22.73.79.88.34.8.11   73.79.88.34.8.11.49
+  79.88.34.8.11.49.34   88.34.8.11.49.34.90   34.8.11.49.34.90.59
+  8.11.49.34.90.59.96   11.49.34.90.59.96.60   49.34.90.59.96.60.55
+  34.90.59.96.60.55.75   90.59.96.60.55.75.77   59.96.60.55.75.77.44
+  96.60.55.75.77.44.2   60.55.75.77.44.2.7   55.75.77.44.2.7.85
+  75.77.44.2.7.85.57   77.44.2.7.85.57.74   44.2.7.85.57.74.29
+  2.7.85.57.74.29.70   7.85.57.74.29.70.59   85.57.74.29.70.59.19
+  57.74.29.70.59.19.39   74.29.70.59.19.39.26   29.70.59.19.39.26.26
+  70.59.19.39.26.26.47   59.19.39.26.26.47.80   19.39.26.26.47.80.90
+  39.26.26.47.80.90.36   26.26.47.80.90.36.58   26.47.80.90.36.58.47
+  47.80.90.36.58.47.9   80.90.36.58.47.9.72   90.36.58.47.9.72.72
+  36.58.47.9.72.72.66   58.47.9.72.72.66.33   47.9.72.72.66.33.93
+  9.72.72.66.33.93.75   72.72.66.33.93.75.64   72.66.33.93.75.64.81
+  66.33.93.75.64.81.9   33.93.75.64.81.9.23   93.75.64.81.9.23.37
+  75.64.81.9.23.37.13   64.81.9.23.37.13.12   81.9.23.37.13.12.14
+  9.23.37.13.12.14.62   23.37.13.12.14.62.91   37.13.12.14.62.91.36
+  13.12.14.62.91.36.91   12.14.62.91.36.91.33   14.62.91.36.91.33.15
+  62.91.36.91.33.15.34   91.36.91.33.15.34.36   36.91.33.15.34.36.99
+  91.33.15.34.36.99.3   33.15.34.36.99.3.95   15.34.36.99.3.95.69
+  34.36.99.3.95.69.58   36.99.3.95.69.58.52   99.3.95.69.58.52.30
+  3.95.69.58.52.30.50   95.69.58.52.30.50.84   69.58.52.30.50.84.10
+  58.52.30.50.84.10.84   52.30.50.84.10.84.33   30.50.84.10.84.33.21
+  50.84.10.84.33.21.39   84.10.84.33.21.39.44   10.84.33.21.39.44.58
+  84.33.21.39.44.58.30   33.21.39.44.58.30.38   21.39.44.58.30.38.34
+  39.44.58.30.38.34.83   44.58.30.38.34.83.27   58.30.38.34.83.27.82
+  30.38.34.83.27.82.17   38.34.83.27.82.17.7   34.83.27.82.17.7
+  83.27.82.17.7}
+
+do_execsql_test 1.11.14.2 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING) FROM t2
+} {90.40.30   90.40.30.80   90.40.30.80.20   90.40.30.80.20.90
+  90.40.30.80.20.90.60   40.30.80.20.90.60.70   30.80.20.90.60.70.80
+  80.20.90.60.70.80.90   20.90.60.70.80.90.30   90.60.70.80.90.30.50
+  60.70.80.90.30.50.10   70.80.90.30.50.10.30   80.90.30.50.10.30
+  90.30.50.10.30   81.91.61   81.91.61.91   81.91.61.91.91   81.91.61.91.91.1
+  81.91.61.91.91.1.81   91.61.91.91.1.81.41   61.91.91.1.81.41.61
+  91.91.1.81.41.61.1   91.1.81.41.61.1.21   1.81.41.61.1.21.11
+  81.41.61.1.21.11.51   41.61.1.21.11.51.41   61.1.21.11.51.41.31
+  1.21.11.51.41.31.31   21.11.51.41.31.31.11   11.51.41.31.31.11.81
+  51.41.31.31.11.81.91   41.31.31.11.81.91.91   31.31.11.81.91.91.21
+  31.11.81.91.91.21   11.81.91.91.21   62.12.32   62.12.32.22
+  62.12.32.22.42   62.12.32.22.42.2   62.12.32.22.42.2.72
+  12.32.22.42.2.72.12   32.22.42.2.72.12.22   22.42.2.72.12.22.2
+  42.2.72.12.22.2.72   2.72.12.22.2.72.72   72.12.22.2.72.72.12
+  12.22.2.72.72.12.62   22.2.72.72.12.62.52   2.72.72.12.62.52.82
+  72.72.12.62.52.82   72.12.62.52.82   93.23.93   93.23.93.43   93.23.93.43.3
+  93.23.93.43.3.43   93.23.93.43.3.43.33   23.93.43.3.43.33.53
+  93.43.3.43.33.53.63   43.3.43.33.53.63.73   3.43.33.53.63.73.13
+  43.33.53.63.73.13.73   33.53.63.73.13.73.73   53.63.73.13.73.73.33
+  63.73.13.73.73.33.93   73.13.73.73.33.93.23   13.73.73.33.93.23.13
+  73.73.33.93.23.13.33   73.33.93.23.13.33.3   33.93.23.13.33.3.33
+  93.23.13.33.3.33.83   23.13.33.3.33.83   13.33.3.33.83   54.84.74
+  54.84.74.24   54.84.74.24.4   54.84.74.24.4.94   54.84.74.24.4.94.84
+  84.74.24.4.94.84.74   74.24.4.94.84.74.34   24.4.94.84.74.34.34
+  4.94.84.74.34.34.44   94.84.74.34.34.44.74   84.74.34.34.44.74.64
+  74.34.34.44.74.64.14   34.34.44.74.64.14.34   34.44.74.64.14.34.84
+  44.74.64.14.34.84.84   74.64.14.34.84.84.44   64.14.34.84.84.44.34
+  14.34.84.84.44.34   34.84.84.44.34   65.35.85   65.35.85.85
+  65.35.85.85.55   65.35.85.85.55.15   65.35.85.85.55.15.25
+  35.85.85.55.15.25.75   85.85.55.15.25.75.95   85.55.15.25.75.95.65
+  55.15.25.75.95.65.65   15.25.75.95.65.65.35   25.75.95.65.65.35.5
+  75.95.65.65.35.5.15   95.65.65.35.5.15.95   65.65.35.5.15.95.55
+  65.35.5.15.95.55.75   35.5.15.95.55.75.85   5.15.95.55.75.85.75
+  15.95.55.75.85.75.15   95.55.75.85.75.15.95   55.75.85.75.15.95
+  75.85.75.15.95   96.46.6   96.46.6.46   96.46.6.46.16   96.46.6.46.16.16
+  96.46.6.46.16.16.86   46.6.46.16.16.86.56   6.46.16.16.86.56.56
+  46.16.16.86.56.56.56   16.16.86.56.56.56.16   16.86.56.56.56.16.36
+  86.56.56.56.16.36.76   56.56.56.16.36.76.96   56.56.16.36.76.96.96
+  56.16.36.76.96.96.26   16.36.76.96.96.26.26   36.76.96.96.26.26.36
+  76.96.96.26.26.36.66   96.96.26.26.36.66.36   96.26.26.36.66.36.36
+  26.26.36.66.36.36   26.36.66.36.36   97.27.97   97.27.97.67
+  97.27.97.67.77   97.27.97.67.77.47   97.27.97.67.77.47.7
+  27.97.67.77.47.7.47   97.67.77.47.7.47.87   67.77.47.7.47.87.37
+  77.47.7.47.87.37.87   47.7.47.87.37.87.77   7.47.87.37.87.77.7
+  47.87.37.87.77.7.57   87.37.87.77.7.57.47   37.87.77.7.57.47.47
+  87.77.7.57.47.47.37   77.7.57.47.47.37.27   7.57.47.47.37.27.17
+  57.47.47.37.27.17.7   47.47.37.27.17.7   47.37.27.17.7   38.68.78
+  38.68.78.8   38.68.78.8.28   38.68.78.8.28.98   38.68.78.8.28.98.78
+  68.78.8.28.98.78.58   78.8.28.98.78.58.98   8.28.98.78.58.98.8
+  28.98.78.58.98.8.88   98.78.58.98.8.88.8   78.58.98.8.88.8.58
+  58.98.8.88.8.58.58   98.8.88.8.58.58.58   8.88.8.58.58.58.38
+  88.8.58.58.58.38   8.58.58.58.38   89.59.39   89.59.39.99   89.59.39.99.29
+  89.59.39.99.29.59   89.59.39.99.29.59.89   59.39.99.29.59.89.89
+  39.99.29.59.89.89.29   99.29.59.89.89.29.9   29.59.89.89.29.9.79
+  59.89.89.29.9.79.49   89.89.29.9.79.49.59   89.29.9.79.49.59.29
+  29.9.79.49.59.29.59   9.79.49.59.29.59.19   79.49.59.29.59.19.39
+  49.59.29.59.19.39.9   59.29.59.19.39.9.9   29.59.19.39.9.9.99
+  59.19.39.9.9.99.69   19.39.9.9.99.69.39   39.9.9.99.69.39   9.9.99.69.39}
+
+do_execsql_test 1.11.14.3 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2
+} {1.1.2   1.1.2.2   1.1.2.2.3   1.1.2.2.3.3   1.1.2.2.3.3.4   1.2.2.3.3.4.5
+  2.2.3.3.4.5.6   2.3.3.4.5.6.7   3.3.4.5.6.7.7   3.4.5.6.7.7.7
+  4.5.6.7.7.7.8   5.6.7.7.7.8.8   6.7.7.7.8.8.8   7.7.7.8.8.8.9
+  7.7.8.8.8.9.9   7.8.8.8.9.9.9   8.8.8.9.9.9.10   8.8.9.9.9.10.11
+  8.9.9.9.10.11.11   9.9.9.10.11.11.12   9.9.10.11.11.12.12
+  9.10.11.11.12.12.12   10.11.11.12.12.12.13   11.11.12.12.12.13.13
+  11.12.12.12.13.13.14   12.12.12.13.13.14.15   12.12.13.13.14.15.15
+  12.13.13.14.15.15.15   13.13.14.15.15.15.16   13.14.15.15.15.16.16
+  14.15.15.15.16.16.16   15.15.15.16.16.16.17   15.15.16.16.16.17.19
+  15.16.16.16.17.19.20   16.16.16.17.19.20.21   16.16.17.19.20.21.21
+  16.17.19.20.21.21.22   17.19.20.21.21.22.22   19.20.21.21.22.22.23
+  20.21.21.22.22.23.23   21.21.22.22.23.23.24   21.22.22.23.23.24.25
+  22.22.23.23.24.25.26   22.23.23.24.25.26.26   23.23.24.25.26.26.27
+  23.24.25.26.26.27.27   24.25.26.26.27.27.28   25.26.26.27.27.28.29
+  26.26.27.27.28.29.29   26.27.27.28.29.29.29   27.27.28.29.29.29.30
+  27.28.29.29.29.30.30   28.29.29.29.30.30.30   29.29.29.30.30.30.31
+  29.29.30.30.30.31.31   29.30.30.30.31.31.32   30.30.30.31.31.32.33
+  30.30.31.31.32.33.33   30.31.31.32.33.33.33   31.31.32.33.33.33.33
+  31.32.33.33.33.33.34   32.33.33.33.33.34.34   33.33.33.33.34.34.34
+  33.33.33.34.34.34.34   33.33.34.34.34.34.35   33.34.34.34.34.35.35
+  34.34.34.34.35.35.36   34.34.34.35.35.36.36   34.34.35.35.36.36.36
+  34.35.35.36.36.36.36   35.35.36.36.36.36.37   35.36.36.36.36.37.37
+  36.36.36.36.37.37.38   36.36.36.37.37.38.38   36.36.37.37.38.38.39
+  36.37.37.38.38.39.39   37.37.38.38.39.39.39   37.38.38.39.39.39.40
+  38.38.39.39.39.40.41   38.39.39.39.40.41.41   39.39.39.40.41.41.42
+  39.39.40.41.41.42.43   39.40.41.41.42.43.43   40.41.41.42.43.43.44
+  41.41.42.43.43.44.44   41.42.43.43.44.44.46   42.43.43.44.44.46.46
+  43.43.44.44.46.46.47   43.44.44.46.46.47.47   44.44.46.46.47.47.47
+  44.46.46.47.47.47.47   46.46.47.47.47.47.49   46.47.47.47.47.49.50
+  47.47.47.47.49.50.51   47.47.47.49.50.51.52   47.47.49.50.51.52.53
+  47.49.50.51.52.53.54   49.50.51.52.53.54.55   50.51.52.53.54.55.55
+  51.52.53.54.55.55.56   52.53.54.55.55.56.56   53.54.55.55.56.56.56
+  54.55.55.56.56.56.57   55.55.56.56.56.57.58   55.56.56.56.57.58.58
+  56.56.56.57.58.58.58   56.56.57.58.58.58.58   56.57.58.58.58.58.59
+  57.58.58.58.58.59.59   58.58.58.58.59.59.59   58.58.58.59.59.59.59
+  58.58.59.59.59.59.60   58.59.59.59.59.60.61   59.59.59.59.60.61.61
+  59.59.59.60.61.61.62   59.59.60.61.61.62.62   59.60.61.61.62.62.63
+  60.61.61.62.62.63.64   61.61.62.62.63.64.65   61.62.62.63.64.65.65
+  62.62.63.64.65.65.65   62.63.64.65.65.65.66   63.64.65.65.65.66.67
+  64.65.65.65.66.67.68   65.65.65.66.67.68.69   65.65.66.67.68.69.70
+  65.66.67.68.69.70.72   66.67.68.69.70.72.72   67.68.69.70.72.72.72
+  68.69.70.72.72.72.73   69.70.72.72.72.73.73   70.72.72.72.73.73.73
+  72.72.72.73.73.73.74   72.72.73.73.73.74.74   72.73.73.73.74.74.74
+  73.73.73.74.74.74.75   73.73.74.74.74.75.75   73.74.74.74.75.75.75
+  74.74.74.75.75.75.76   74.74.75.75.75.76.77   74.75.75.75.76.77.77
+  75.75.75.76.77.77.78   75.75.76.77.77.78.78   75.76.77.77.78.78.79
+  76.77.77.78.78.79.80   77.77.78.78.79.80.80   77.78.78.79.80.80.81
+  78.78.79.80.80.81.81   78.79.80.80.81.81.81   79.80.80.81.81.81.82
+  80.80.81.81.81.82.83   80.81.81.81.82.83.84   81.81.81.82.83.84.84
+  81.81.82.83.84.84.84   81.82.83.84.84.84.84   82.83.84.84.84.84.85
+  83.84.84.84.84.85.85   84.84.84.84.85.85.85   84.84.84.85.85.85.86
+  84.84.85.85.85.86.87   84.85.85.85.86.87.87   85.85.85.86.87.87.88
+  85.85.86.87.87.88.89   85.86.87.87.88.89.89   86.87.87.88.89.89.89
+  87.87.88.89.89.89.90   87.88.89.89.89.90.90   88.89.89.89.90.90.90
+  89.89.89.90.90.90.91   89.89.90.90.90.91.91   89.90.90.90.91.91.91
+  90.90.90.91.91.91.91   90.90.91.91.91.91.91   90.91.91.91.91.91.93
+  91.91.91.91.91.93.93   91.91.91.91.93.93.93   91.91.91.93.93.93.94
+  91.91.93.93.93.94.95   91.93.93.93.94.95.95   93.93.93.94.95.95.95
+  93.93.94.95.95.95.96   93.94.95.95.95.96.96   94.95.95.95.96.96.96
+  95.95.95.96.96.96.97   95.95.96.96.96.97.97   95.96.96.96.97.97.98
+  96.96.96.97.97.98.98   96.96.97.97.98.98.99   96.97.97.98.98.99.99
+  97.97.98.98.99.99   97.98.98.99.99}
+
+do_execsql_test 1.11.14.4 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2
+} {10.20.30   10.20.30.30   10.20.30.30.30   10.20.30.30.30.40
+  10.20.30.30.30.40.50   20.30.30.30.40.50.60   30.30.30.40.50.60.70
+  30.30.40.50.60.70.80   30.40.50.60.70.80.80   40.50.60.70.80.80.90
+  50.60.70.80.80.90.90   60.70.80.80.90.90.90   70.80.80.90.90.90
+  80.80.90.90.90   1.1.11   1.1.11.11   1.1.11.11.21   1.1.11.11.21.21
+  1.1.11.11.21.21.31   1.11.11.21.21.31.31   11.11.21.21.31.31.41
+  11.21.21.31.31.41.41   21.21.31.31.41.41.51   21.31.31.41.41.51.61
+  31.31.41.41.51.61.61   31.41.41.51.61.61.81   41.41.51.61.61.81.81
+  41.51.61.61.81.81.81   51.61.61.81.81.81.91   61.61.81.81.81.91.91
+  61.81.81.81.91.91.91   81.81.81.91.91.91.91   81.81.91.91.91.91.91
+  81.91.91.91.91.91   91.91.91.91.91   2.2.12   2.2.12.12   2.2.12.12.12
+  2.2.12.12.12.22   2.2.12.12.12.22.22   2.12.12.12.22.22.32
+  12.12.12.22.22.32.42   12.12.22.22.32.42.52   12.22.22.32.42.52.62
+  22.22.32.42.52.62.62   22.32.42.52.62.62.72   32.42.52.62.62.72.72
+  42.52.62.62.72.72.72   52.62.62.72.72.72.82   62.62.72.72.72.82
+  62.72.72.72.82   3.3.13   3.3.13.13   3.3.13.13.23   3.3.13.13.23.23
+  3.3.13.13.23.23.33   3.13.13.23.23.33.33   13.13.23.23.33.33.33
+  13.23.23.33.33.33.33   23.23.33.33.33.33.43   23.33.33.33.33.43.43
+  33.33.33.33.43.43.53   33.33.33.43.43.53.63   33.33.43.43.53.63.73
+  33.43.43.53.63.73.73   43.43.53.63.73.73.73   43.53.63.73.73.73.83
+  53.63.73.73.73.83.93   63.73.73.73.83.93.93   73.73.73.83.93.93.93
+  73.73.83.93.93.93   73.83.93.93.93   4.14.24   4.14.24.34   4.14.24.34.34
+  4.14.24.34.34.34   4.14.24.34.34.34.34   14.24.34.34.34.34.44
+  24.34.34.34.34.44.44   34.34.34.34.44.44.54   34.34.34.44.44.54.64
+  34.34.44.44.54.64.74   34.44.44.54.64.74.74   44.44.54.64.74.74.74
+  44.54.64.74.74.74.84   54.64.74.74.74.84.84   64.74.74.74.84.84.84
+  74.74.74.84.84.84.84   74.74.84.84.84.84.94   74.84.84.84.84.94
+  84.84.84.84.94   5.15.15   5.15.15.15   5.15.15.15.25   5.15.15.15.25.35
+  5.15.15.15.25.35.35   15.15.15.25.35.35.55   15.15.25.35.35.55.55
+  15.25.35.35.55.55.65   25.35.35.55.55.65.65   35.35.55.55.65.65.65
+  35.55.55.65.65.65.75   55.55.65.65.65.75.75   55.65.65.65.75.75.75
+  65.65.65.75.75.75.85   65.65.75.75.75.85.85   65.75.75.75.85.85.85
+  75.75.75.85.85.85.95   75.75.85.85.85.95.95   75.85.85.85.95.95.95
+  85.85.85.95.95.95   85.85.95.95.95   6.16.16   6.16.16.16   6.16.16.16.26
+  6.16.16.16.26.26   6.16.16.16.26.26.36   16.16.16.26.26.36.36
+  16.16.26.26.36.36.36   16.26.26.36.36.36.36   26.26.36.36.36.36.46
+  26.36.36.36.36.46.46   36.36.36.36.46.46.56   36.36.36.46.46.56.56
+  36.36.46.46.56.56.56   36.46.46.56.56.56.66   46.46.56.56.56.66.76
+  46.56.56.56.66.76.86   56.56.56.66.76.86.96   56.56.66.76.86.96.96
+  56.66.76.86.96.96.96   66.76.86.96.96.96   76.86.96.96.96   7.7.7
+  7.7.7.17   7.7.7.17.27   7.7.7.17.27.27   7.7.7.17.27.27.37
+  7.7.17.27.27.37.37   7.17.27.27.37.37.47   17.27.27.37.37.47.47
+  27.27.37.37.47.47.47   27.37.37.47.47.47.47   37.37.47.47.47.47.57
+  37.47.47.47.47.57.67   47.47.47.47.57.67.77   47.47.47.57.67.77.77
+  47.47.57.67.77.77.87   47.57.67.77.77.87.87   57.67.77.77.87.87.97
+  67.77.77.87.87.97.97   77.77.87.87.97.97   77.87.87.97.97   8.8.8
+  8.8.8.28   8.8.8.28.38   8.8.8.28.38.38   8.8.8.28.38.38.58
+  8.8.28.38.38.58.58   8.28.38.38.58.58.58   28.38.38.58.58.58.58
+  38.38.58.58.58.58.68   38.58.58.58.58.68.78   58.58.58.58.68.78.78
+  58.58.58.68.78.78.88   58.58.68.78.78.88.98   58.68.78.78.88.98.98
+  68.78.78.88.98.98   78.78.88.98.98   9.9.9   9.9.9.19   9.9.9.19.29
+  9.9.9.19.29.29   9.9.9.19.29.29.29   9.9.19.29.29.29.39
+  9.19.29.29.29.39.39   19.29.29.29.39.39.39   29.29.29.39.39.39.49
+  29.29.39.39.39.49.59   29.39.39.39.49.59.59   39.39.39.49.59.59.59
+  39.39.49.59.59.59.59   39.49.59.59.59.59.69   49.59.59.59.59.69.79
+  59.59.59.59.69.79.89   59.59.59.69.79.89.89   59.59.69.79.89.89.89
+  59.69.79.89.89.89.99   69.79.89.89.89.99.99   79.89.89.89.99.99
+  89.89.89.99.99}
+
+do_execsql_test 1.11.14.5 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING ) FROM t2
+} {90.40.30   90.40.30.80   90.40.30.80.20   90.40.30.80.20.90
+  90.40.30.80.20.90.60   40.30.80.20.90.60.70   30.80.20.90.60.70.80
+  80.20.90.60.70.80.90   20.90.60.70.80.90.30   90.60.70.80.90.30.50
+  60.70.80.90.30.50.10   70.80.90.30.50.10.30   80.90.30.50.10.30.81
+  90.30.50.10.30.81.91   30.50.10.30.81.91.61   50.10.30.81.91.61.91
+  10.30.81.91.61.91.91   30.81.91.61.91.91.1   81.91.61.91.91.1.81
+  91.61.91.91.1.81.41   61.91.91.1.81.41.61   91.91.1.81.41.61.1
+  91.1.81.41.61.1.21   1.81.41.61.1.21.11   81.41.61.1.21.11.51
+  41.61.1.21.11.51.41   61.1.21.11.51.41.31   1.21.11.51.41.31.31
+  21.11.51.41.31.31.11   11.51.41.31.31.11.81   51.41.31.31.11.81.91
+  41.31.31.11.81.91.91   31.31.11.81.91.91.21   31.11.81.91.91.21.62
+  11.81.91.91.21.62.12   81.91.91.21.62.12.32   91.91.21.62.12.32.22
+  91.21.62.12.32.22.42   21.62.12.32.22.42.2   62.12.32.22.42.2.72
+  12.32.22.42.2.72.12   32.22.42.2.72.12.22   22.42.2.72.12.22.2
+  42.2.72.12.22.2.72   2.72.12.22.2.72.72   72.12.22.2.72.72.12
+  12.22.2.72.72.12.62   22.2.72.72.12.62.52   2.72.72.12.62.52.82
+  72.72.12.62.52.82.93   72.12.62.52.82.93.23   12.62.52.82.93.23.93
+  62.52.82.93.23.93.43   52.82.93.23.93.43.3   82.93.23.93.43.3.43
+  93.23.93.43.3.43.33   23.93.43.3.43.33.53   93.43.3.43.33.53.63
+  43.3.43.33.53.63.73   3.43.33.53.63.73.13   43.33.53.63.73.13.73
+  33.53.63.73.13.73.73   53.63.73.13.73.73.33   63.73.13.73.73.33.93
+  73.13.73.73.33.93.23   13.73.73.33.93.23.13   73.73.33.93.23.13.33
+  73.33.93.23.13.33.3   33.93.23.13.33.3.33   93.23.13.33.3.33.83
+  23.13.33.3.33.83.54   13.33.3.33.83.54.84   33.3.33.83.54.84.74
+  3.33.83.54.84.74.24   33.83.54.84.74.24.4   83.54.84.74.24.4.94
+  54.84.74.24.4.94.84   84.74.24.4.94.84.74   74.24.4.94.84.74.34
+  24.4.94.84.74.34.34   4.94.84.74.34.34.44   94.84.74.34.34.44.74
+  84.74.34.34.44.74.64   74.34.34.44.74.64.14   34.34.44.74.64.14.34
+  34.44.74.64.14.34.84   44.74.64.14.34.84.84   74.64.14.34.84.84.44
+  64.14.34.84.84.44.34   14.34.84.84.44.34.65   34.84.84.44.34.65.35
+  84.84.44.34.65.35.85   84.44.34.65.35.85.85   44.34.65.35.85.85.55
+  34.65.35.85.85.55.15   65.35.85.85.55.15.25   35.85.85.55.15.25.75
+  85.85.55.15.25.75.95   85.55.15.25.75.95.65   55.15.25.75.95.65.65
+  15.25.75.95.65.65.35   25.75.95.65.65.35.5   75.95.65.65.35.5.15
+  95.65.65.35.5.15.95   65.65.35.5.15.95.55   65.35.5.15.95.55.75
+  35.5.15.95.55.75.85   5.15.95.55.75.85.75   15.95.55.75.85.75.15
+  95.55.75.85.75.15.95   55.75.85.75.15.95.96   75.85.75.15.95.96.46
+  85.75.15.95.96.46.6   75.15.95.96.46.6.46   15.95.96.46.6.46.16
+  95.96.46.6.46.16.16   96.46.6.46.16.16.86   46.6.46.16.16.86.56
+  6.46.16.16.86.56.56   46.16.16.86.56.56.56   16.16.86.56.56.56.16
+  16.86.56.56.56.16.36   86.56.56.56.16.36.76   56.56.56.16.36.76.96
+  56.56.16.36.76.96.96   56.16.36.76.96.96.26   16.36.76.96.96.26.26
+  36.76.96.96.26.26.36   76.96.96.26.26.36.66   96.96.26.26.36.66.36
+  96.26.26.36.66.36.36   26.26.36.66.36.36.97   26.36.66.36.36.97.27
+  36.66.36.36.97.27.97   66.36.36.97.27.97.67   36.36.97.27.97.67.77
+  36.97.27.97.67.77.47   97.27.97.67.77.47.7   27.97.67.77.47.7.47
+  97.67.77.47.7.47.87   67.77.47.7.47.87.37   77.47.7.47.87.37.87
+  47.7.47.87.37.87.77   7.47.87.37.87.77.7   47.87.37.87.77.7.57
+  87.37.87.77.7.57.47   37.87.77.7.57.47.47   87.77.7.57.47.47.37
+  77.7.57.47.47.37.27   7.57.47.47.37.27.17   57.47.47.37.27.17.7
+  47.47.37.27.17.7.38   47.37.27.17.7.38.68   37.27.17.7.38.68.78
+  27.17.7.38.68.78.8   17.7.38.68.78.8.28   7.38.68.78.8.28.98
+  38.68.78.8.28.98.78   68.78.8.28.98.78.58   78.8.28.98.78.58.98
+  8.28.98.78.58.98.8   28.98.78.58.98.8.88   98.78.58.98.8.88.8
+  78.58.98.8.88.8.58   58.98.8.88.8.58.58   98.8.88.8.58.58.58
+  8.88.8.58.58.58.38   88.8.58.58.58.38.89   8.58.58.58.38.89.59
+  58.58.58.38.89.59.39   58.58.38.89.59.39.99   58.38.89.59.39.99.29
+  38.89.59.39.99.29.59   89.59.39.99.29.59.89   59.39.99.29.59.89.89
+  39.99.29.59.89.89.29   99.29.59.89.89.29.9   29.59.89.89.29.9.79
+  59.89.89.29.9.79.49   89.89.29.9.79.49.59   89.29.9.79.49.59.29
+  29.9.79.49.59.29.59   9.79.49.59.29.59.19   79.49.59.29.59.19.39
+  49.59.29.59.19.39.9   59.29.59.19.39.9.9   29.59.19.39.9.9.99
+  59.19.39.9.9.99.69   19.39.9.9.99.69.39   39.9.9.99.69.39   9.9.99.69.39}
+
+do_execsql_test 1.11.14.6 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING) FROM t2
+} {96   38   68   62   46   6   46   78   54   8   84   16   16   86   74   24
+  12   32   56   22   90   28   56   40   56   16   36   98   76   4   94
+  42   30   78   2   80   84   72   58   96   98   74   12   8   20   22   88
+  34   8   34   90   96   60   44   2   74   70   26   26   80   90   36   58
+  72   72   66   64   12   14   62   36   34   36   58   52   30   50   84
+  10   84   44   58   30   38   34   82   89   81   59   39   91   99   97
+  27   97   67   29   93   77   23   93   65   35   47   7   61   91   85
+  85   43   59   3   91   55   15   89   25   47   1   43   75   89   81   33
+  29   53   63   87   37   41   9   61   73   95   65   13   1   21   65   35
+  5   73   11   51   87   41   31   31   15   95   73   79   11   49   59
+  55   75   77   7   85   57   29   59   19   39   47   47   9   33   93   75
+  81   9   23   37   13   91   91   33   15   99   3   95   69   33   21   39
+  83   27   17   7}
+
+do_execsql_test 1.11.14.7 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (win1 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING) 
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a)
+    ORDER BY 1
+} {1   1   10   11   11   12   12   12   13   13   14   15   15   15   16   16
+  16   17   19   2   2   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   3   3   30   30   30   31   31   32   33   33
+  33   33   34   34   34   34   35   35   36   36   36   36   37   37   38
+  38   39   39   39   4   40   41   41   42   43   43   44   44   46   46
+  47   47   47   47   49   5   50   51   52   53   54   55   55   56   56
+  56   57   58   58   58   58   59   59   59   59   6   60   61   61   62
+  62   63   64   65   65   65   66   67   68   69   7   7   7   70   72   72
+  72   73   73   73   74   74   74   75   75   75   76   77   77   78   78
+  79   8   8   8   80   80   81   81   81   82   83   84   84   84   84   85
+  85   85   86   87   87   88   89   89   89   9   9   9   90   90   90   91
+  91   91   91   91   93   93   93   94   95   95   95   96   96   96   97
+  97   98   98   99   99}
+
+do_execsql_test 1.11.14.8 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (win1 ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING) 
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a ORDER BY b%10)
+    ORDER BY 1
+} {1   1   10   11   11   12   12   12   13   13   14   15   15   15   16   16
+  16   17   19   2   2   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   3   3   30   30   30   31   31   32   33   33
+  33   33   34   34   34   34   35   35   36   36   36   36   37   37   38
+  38   39   39   39   4   40   41   41   42   43   43   44   44   46   46
+  47   47   47   47   49   5   50   51   52   53   54   55   55   56   56
+  56   57   58   58   58   58   59   59   59   59   6   60   61   61   62
+  62   63   64   65   65   65   66   67   68   69   7   7   7   70   72   72
+  72   73   73   73   74   74   74   75   75   75   76   77   77   78   78
+  79   8   8   8   80   80   81   81   81   82   83   84   84   84   84   85
+  85   85   86   87   87   88   89   89   89   9   9   9   90   90   90   91
+  91   91   91   91   93   93   93   94   95   95   95   96   96   96   97
+  97   98   98   99   99}
+
+do_execsql_test 1.11.14.9 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER win2
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a ORDER BY b%10),
+           win2 AS (win1 ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING)
+    ORDER BY 1
+} {1   1   10   11   11   12   12   12   13   13   14   15   15   15   16   16
+  16   17   19   2   2   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   3   3   30   30   30   31   31   32   33   33
+  33   33   34   34   34   34   35   35   36   36   36   36   37   37   38
+  38   39   39   39   4   40   41   41   42   43   43   44   44   46   46
+  47   47   47   47   49   5   50   51   52   53   54   55   55   56   56
+  56   57   58   58   58   58   59   59   59   59   6   60   61   61   62
+  62   63   64   65   65   65   66   67   68   69   7   7   7   70   72   72
+  72   73   73   73   74   74   74   75   75   75   76   77   77   78   78
+  79   8   8   8   80   80   81   81   81   82   83   84   84   84   84   85
+  85   85   86   87   87   88   89   89   89   9   9   9   90   90   90   91
+  91   91   91   91   93   93   93   94   95   95   95   96   96   96   97
+  97   98   98   99   99}
+
+do_execsql_test 1.11.15.1 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE a%2=0) OVER win FROM t2
+    WINDOW win AS (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING)
+} {3 89.96   4 89.96   5 89.96.38   6 89.96.38   7 89.96.38.39   7 96.38.39
+  7 96.38.39.91   7 38.39.91   7 38.39.91.6   7 39.91.6   7 39.91.6.97
+  7 91.6.97   7 91.6.97.46   7 6.97.46   7 6.97.46.54   7 97.46.54
+  7 97.46.54.8   7 46.54.8   7 46.54.8.29   7 54.8.29   7 54.8.29.84
+  7 8.29.84   7 8.29.84.23   7 29.84.23   7 29.84.23.16   7 84.23.16
+  7 84.23.16.65   7 23.16.65   7 23.16.65.47   7 16.65.47   7 16.65.47.86
+  7 65.47.86   7 65.47.86.61   7 47.86.61   7 47.86.61.85   7 86.61.85
+  7 86.61.85.85   7 61.85.85   7 61.85.85.59   7 85.85.59   7 85.85.59.32
+  7 85.59.32   7 85.59.32.3   7 59.32.3   7 59.32.3.22   7 32.3.22
+  7 32.3.22.55   7 3.22.55   7 3.22.55.28   7 22.55.28   7 22.55.28.25
+  7 55.28.25   7 55.28.25.1   7 28.25.1   7 28.25.1.40   7 25.1.40
+  7 25.1.40.56   7 1.40.56   7 1.40.56.75   7 40.56.75   7 40.56.75.89
+  7 56.75.89   7 56.75.89.76   7 75.89.76   7 75.89.76.4   7 89.76.4
+  7 89.76.4.42   7 76.4.42   7 76.4.42.78   7 4.42.78   7 4.42.78.29
+  7 42.78.29   7 42.78.29.63   7 78.29.63   7 78.29.63.87   7 29.63.87
+  7 29.63.87.80   7 63.87.80   7 63.87.80.72   7 87.80.72   7 87.80.72.9
+  7 80.72.9   7 80.72.9.73   7 72.9.73   7 72.9.73.65   7 9.73.65
+  7 9.73.65.58   7 73.65.58   7 73.65.58.98   7 65.58.98   7 65.58.98.21
+  7 58.98.21   7 58.98.21.65   7 98.21.65   7 98.21.65.5   7 21.65.5
+  7 21.65.5.11   7 65.5.11   7 65.5.11.87   7 5.11.87   7 5.11.87.12
+  7 11.87.12   7 11.87.12.20   7 87.12.20   7 87.12.20.31   7 12.20.31
+  7 12.20.31.95   7 20.31.95   7 20.31.95.73   7 31.95.73   7 31.95.73.88
+  7 95.73.88   7 95.73.88.8   7 73.88.8   7 73.88.8.49   7 88.8.49
+  7 88.8.49.90   7 8.49.90   7 8.49.90.96   7 49.90.96   7 49.90.96.55
+  7 90.96.55   7 90.96.55.77   7 96.55.77   7 96.55.77.2   7 55.77.2
+  7 55.77.2.85   7 77.2.85   7 77.2.85.74   7 2.85.74   7 2.85.74.70
+  7 85.74.70   7 85.74.70.19   7 74.70.19   7 74.70.19.26   7 70.19.26
+  7 70.19.26.47   7 19.26.47   7 19.26.47.90   7 26.47.90   7 26.47.90.58
+  7 47.90.58   7 47.90.58.9   7 90.58.9   7 90.58.9.72   7 58.9.72
+  7 58.9.72.33   7 9.72.33   7 9.72.33.75   7 72.33.75   7 72.33.75.81
+  7 33.75.81   7 33.75.81.23   7 75.81.23   7 75.81.23.13   7 81.23.13
+  7 81.23.13.14   7 23.13.14   7 23.13.14.91   7 13.14.91   7 13.14.91.91
+  7 14.91.91   7 14.91.91.15   7 91.91.15   7 91.91.15.36   7 91.15.36
+  7 91.15.36.3   7 15.36.3   7 15.36.3.69   7 36.3.69   7 36.3.69.52
+  7 3.69.52   7 3.69.52.50   7 69.52.50   7 69.52.50.10   7 52.50.10
+  7 52.50.10.33   7 50.10.33   7 50.10.33.39   7 10.33.39   7 10.33.39.58
+  7 33.39.58   7 33.39.58.38   7 39.58.38   7 39.58.38.83   7 58.38.83
+  7 58.38.83.82   7 38.83.82   7 38.83.82.7   6 83.82.7   5 83.82.7}
+
+do_execsql_test 1.11.15.2 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE 0=1) OVER win FROM t2
+    WINDOW win AS (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING)
+} {3 {}   4 {}   5 {}   6 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}
+  7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}
+  7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}
+  7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}
+  7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}
+  7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}
+  7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}
+  7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}
+  7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}
+  7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}
+  7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}
+  7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}
+  7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}
+  7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}
+  7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}
+  7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}
+  7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}
+  7 {}   7 {}   6 {}   5 {}}
+
+do_execsql_test 1.11.15.3 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE 1=0) OVER win FROM t2
+    WINDOW win AS (PARTITION BY (a%10) ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING)
+} {3 {}   4 {}   5 {}   6 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}
+  7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   6 {}   5 {}   3 {}   4 {}
+  5 {}   6 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}
+  7 {}   7 {}   7 {}   7 {}   6 {}   5 {}   3 {}   4 {}   5 {}   6 {}   7 {}
+  7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}
+  7 {}   6 {}   5 {}   3 {}   4 {}   5 {}   6 {}   7 {}   7 {}   7 {}   7 {}
+  7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   6 {}   5 {}
+  3 {}   4 {}   5 {}   6 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}
+  7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   6 {}   5 {}   3 {}   4 {}   5 {}
+  6 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}
+  7 {}   7 {}   7 {}   6 {}   5 {}   3 {}   4 {}   5 {}   6 {}   7 {}   7 {}
+  7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}
+  6 {}   5 {}   3 {}   4 {}   5 {}   6 {}   7 {}   7 {}   7 {}   7 {}   7 {}
+  7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   6 {}   5 {}   3 {}
+  4 {}   5 {}   6 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}
+  7 {}   7 {}   7 {}   7 {}   7 {}   6 {}   5 {}   3 {}   4 {}   5 {}   6 {}
+  7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}
+  7 {}   7 {}   6 {}   5 {}}
+
+do_execsql_test 1.11.15.4 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE a%2=0) OVER win FROM t2
+    WINDOW win AS (PARTITION BY (a%10) ORDER BY a ROWS BETWEEN 4 PRECEDING    AND 2 FOLLOWING)
+} {3 89.6.29   4 89.6.29.47   5 89.6.29.47.59   6 89.6.29.47.59.28
+  7 89.6.29.47.59.28.75   7 6.29.47.59.28.75.78   7 29.47.59.28.75.78.72
+  7 47.59.28.75.78.72.98   7 59.28.75.78.72.98.87   7 28.75.78.72.98.87.73
+  7 75.78.72.98.87.73.96   7 78.72.98.87.73.96.74   7 72.98.87.73.96.74.90
+  7 98.87.73.96.74.90.75   7 87.73.96.74.90.75.91   7 73.96.74.90.75.91.69
+  7 96.74.90.75.91.69.39   7 74.90.75.91.69.39.7   6 90.75.91.69.39.7
+  5 75.91.69.39.7   3 {}   4 {}   5 {}   6 {}   7 {}   7 {}   7 {}   7 {}
+  7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   6 {}   5 {}
+  3 96.97.84   4 96.97.84.86   5 96.97.84.86.32   6 96.97.84.86.32.25
+  7 96.97.84.86.32.25.89   7 97.84.86.32.25.89.29   7 84.86.32.25.89.29.9
+  7 86.32.25.89.29.9.21   7 32.25.89.29.9.21.12   7 25.89.29.9.21.12.88
+  7 89.29.9.21.12.88.55   7 29.9.21.12.88.55.70   7 9.21.12.88.55.70.58
+  7 21.12.88.55.70.58.81   7 12.88.55.70.58.81.91   7 88.55.70.58.81.91.52
+  7 55.70.58.81.91.52.58   6 70.58.81.91.52.58   5 58.81.91.52.58   3 {}
+  4 {}   5 {}   6 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}
+  7 {}   7 {}   7 {}   7 {}   7 {}   6 {}   5 {}   3 38.46.23   4 38.46.23.61
+  5 38.46.23.61.3   6 38.46.23.61.3.1   7 38.46.23.61.3.1.76
+  7 46.23.61.3.1.76.63   7 23.61.3.1.76.63.73   7 61.3.1.76.63.73.65
+  7 3.1.76.63.73.65.20   7 1.76.63.73.65.20.8   7 76.63.73.65.20.8.77
+  7 63.73.65.20.8.77.19   7 73.65.20.8.77.19.9   7 65.20.8.77.19.9.23
+  7 20.8.77.19.9.23.15   7 8.77.19.9.23.15.50   7 77.19.9.23.15.50.38
+  6 19.9.23.15.50.38   5 9.23.15.50.38   3 {}   4 {}   5 {}   6 {}   7 {}
+  7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}
+  7 {}   6 {}   5 {}   3 39.54.16   4 39.54.16.85   5 39.54.16.85.22
+  6 39.54.16.85.22.40   7 39.54.16.85.22.40.4   7 54.16.85.22.40.4.87
+  7 16.85.22.40.4.87.65   7 85.22.40.4.87.65.5   7 22.40.4.87.65.5.31
+  7 40.4.87.65.5.31.49   7 4.87.65.5.31.49.2   7 87.65.5.31.49.2.26
+  7 65.5.31.49.2.26.72   7 5.31.49.2.26.72.13   7 31.49.2.26.72.13.36
+  7 49.2.26.72.13.36.10   7 2.26.72.13.36.10.83   6 26.72.13.36.10.83
+  5 72.13.36.10.83   3 {}   4 {}   5 {}   6 {}   7 {}   7 {}   7 {}   7 {}
+  7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   6 {}   5 {}
+  3 91.8.65   4 91.8.65.85   5 91.8.65.85.55   6 91.8.65.85.55.56
+  7 91.8.65.85.55.56.42   7 8.65.85.55.56.42.80   7 65.85.55.56.42.80.58
+  7 85.55.56.42.80.58.11   7 55.56.42.80.58.11.95   7 56.42.80.58.11.95.90
+  7 42.80.58.11.95.90.85   7 80.58.11.95.90.85.47   7 58.11.95.90.85.47.33
+  7 11.95.90.85.47.33.14   7 95.90.85.47.33.14.3   7 90.85.47.33.14.3.33
+  7 85.47.33.14.3.33.82   6 47.33.14.3.33.82   5 33.14.3.33.82   3 {}   4 {}
+  5 {}   6 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}   7 {}
+  7 {}   7 {}   7 {}   7 {}   6 {}   5 {}}
+
+do_execsql_test 1.12.2.1 {
+  SELECT max(b) OVER ( ORDER BY a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2
+} {96   96   96   68   91   91   91   99   99   99   99   99   97   97   97
+  97   97   97   93   93   93   93   84   93   93   93   93   93   86   86
+  86   91   91   91   91   91   85   85   85   59   59   91   91   91   91
+  91   90   90   89   89   89   89   56   56   56   56   75   75   89   98
+  98   98   98   98   94   94   94   94   78   78   78   63   87   87   87
+  87   87   84   84   84   73   95   95   95   95   96   98   98   98   98
+  98   74   74   74   73   73   87   87   87   87   87   41   31   31   95
+  95   95   95   95   88   88   88   88   49   90   90   96   96   96   96
+  96   77   77   77   85   85   85   85   85   74   74   70   70   59   47
+  80   90   90   90   90   90   72   72   72   72   93   93   93   93   93
+  81   81   81   37   37   62   91   91   91   91   91   91   91   99   99
+  99   99   99   95   95   69   84   84   84   84   84   84   84   58   58
+  58   58   83   83   83   83   83   82   82   17   7}
+
+do_execsql_test 1.12.2.2 {
+  SELECT min(b) OVER ( ORDER BY a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2
+} {38   38   38   38   38   39   6   6   6   6   6   27   27   27   8   8   8
+  8   8   29   23   16   16   16   16   16   16   7   7   7   7   7   61   24
+  24   24   24   12   12   12   3   3   3   3   3   15   15   15   15   15
+  1   1   1   1   1   16   16   16   16   16   36   36   4   4   4   4   4
+  30   29   29   29   2   2   2   2   2   37   37   9   9   9   9   9   13
+  13   13   13   1   1   1   1   1   5   5   5   5   5   11   11   8   8   8
+  8   8   15   15   15   15   22   22   8   8   8   8   8   11   34   34   55
+  55   55   44   2   2   2   2   2   7   29   29   19   19   19   19   19
+  26   26   26   36   36   9   9   9   9   9   33   33   33   33   9   9   9
+  9   9   12   12   12   12   14   33   15   15   15   15   3   3   3   3   3
+  30   30   30   10   10   10   10   10   21   21   21   30   30   30   27
+  27   17   7   7   7   7   7}
+
+do_execsql_test 1.12.3.1 {
+  SELECT row_number() OVER ( ORDER BY a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.12.3.2 {
+  SELECT row_number() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.12.3.3 {
+  SELECT row_number() OVER ( ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.12.4.1 {
+  SELECT dense_rank() OVER ( ORDER BY a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.12.4.2 {
+  SELECT dense_rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.12.4.3 {
+  SELECT dense_rank() OVER ( ORDER BY b ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2
+} {1   1   2   2   3   3   4   5   6   7   7   7   8   8   8   9   9   9   10
+  11   11   12   12   12   13   13   14   15   15   15   16   16   16   17
+  18   19   20   20   21   21   22   22   23   24   25   25   26   26   27
+  28   28   28   29   29   29   30   30   31   32   32   32   32   33   33
+  33   33   34   34   35   35   35   35   36   36   37   37   38   38   38
+  39   40   40   41   42   42   43   43   44   44   45   45   45   45   46
+  47   48   49   50   51   52   52   53   53   53   54   55   55   55   55
+  56   56   56   56   57   58   58   59   59   60   61   62   62   62   63
+  64   65   66   67   68   68   68   69   69   69   70   70   70   71   71
+  71   72   73   73   74   74   75   76   76   77   77   77   78   79   80
+  80   80   80   81   81   81   82   83   83   84   85   85   85   86   86
+  86   87   87   87   87   87   88   88   88   89   90   90   90   91   91
+  91   92   92   93   93   94   94}
+
+do_execsql_test 1.12.4.4 {
+  SELECT dense_rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2
+} {1   2   3   3   3   4   5   6   7   8   8   9   9   9   1   1   2   2   3
+  3   4   4   5   5   6   7   7   8   8   8   9   9   9   9   9   1   1   2
+  2   2   3   3   4   5   6   7   7   8   8   8   9   1   1   2   2   3   3
+  4   4   4   4   5   5   6   7   8   8   8   9   10   10   10   1   2   3
+  4   4   4   4   5   5   6   7   8   8   8   9   9   9   9   10   1   2   2
+  2   3   4   4   5   5   6   6   6   7   7   7   8   8   8   9   9   9   1
+  2   2   2   3   3   4   4   4   4   5   5   6   6   6   7   8   9   10   10
+  10   1   1   1   2   3   3   4   4   5   5   5   5   6   7   8   8   9   9
+  10   10   1   1   1   2   3   3   4   4   4   4   5   6   6   7   8   8   1
+  1   1   2   3   3   3   4   4   4   5   6   6   6   6   7   8   9   9   9
+  10   10}
+
+do_execsql_test 1.12.4.5 {
+  SELECT dense_rank() OVER ( ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   4   4   4   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5   5   5   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   6   6   6   6
+  6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   7   7
+  7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7
+  8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8
+  8   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   10   10
+  10   10   10   10   10   10   10   10   10   10   10   10   10   10   10
+  10   10   10   10   10}
+
+do_execsql_test 1.12.4.6 {
+  SELECT dense_rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   3   3   3   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   4   4   4   4   4   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   5   5   5   5   5   5
+  5   5   5   5   5   5   5   5   5   5   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5
+  5}
+
+do_execsql_test 1.12.5.1 {
+  SELECT rank() OVER ( ORDER BY a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.12.5.2 {
+  SELECT rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.12.5.3 {
+  SELECT rank() OVER ( ORDER BY b ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2
+} {1   1   3   3   5   5   7   8   9   10   10   10   13   13   13   16   16
+  16   19   20   20   22   22   22   25   25   27   28   28   28   31   31
+  31   34   35   36   37   37   39   39   41   41   43   44   45   45   47
+  47   49   50   50   50   53   53   53   56   56   58   59   59   59   59
+  63   63   63   63   67   67   69   69   69   69   73   73   75   75   77
+  77   77   80   81   81   83   84   84   86   86   88   88   90   90   90
+  90   94   95   96   97   98   99   100   100   102   102   102   105   106
+  106   106   106   110   110   110   110   114   115   115   117   117   119
+  120   121   121   121   124   125   126   127   128   129   129   129   132
+  132   132   135   135   135   138   138   138   141   142   142   144   144
+  146   147   147   149   149   149   152   153   154   154   154   154   158
+  158   158   161   162   162   164   165   165   165   168   168   168   171
+  171   171   171   171   176   176   176   179   180   180   180   183   183
+  183   186   186   188   188   190   190}
+
+do_execsql_test 1.12.5.4 {
+  SELECT rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2
+} {1   2   3   3   3   6   7   8   9   10   10   12   12   12   1   1   3   3
+  5   5   7   7   9   9   11   12   12   14   14   14   17   17   17   17
+  17   1   1   3   3   3   6   6   8   9   10   11   11   13   13   13   16
+  1   1   3   3   5   5   7   7   7   7   11   11   13   14   15   15   15
+  18   19   19   19   1   2   3   4   4   4   4   8   8   10   11   12   12
+  12   15   15   15   15   19   1   2   2   2   5   6   6   8   8   10   10
+  10   13   13   13   16   16   16   19   19   19   1   2   2   2   5   5   7
+  7   7   7   11   11   13   13   13   16   17   18   19   19   19   1   1
+  1   4   5   5   7   7   9   9   9   9   13   14   15   15   17   17   19
+  19   1   1   1   4   5   5   7   7   7   7   11   12   12   14   15   15
+  1   1   1   4   5   5   5   8   8   8   11   12   12   12   12   16   17
+  18   18   18   21   21}
+
+do_execsql_test 1.12.5.5 {
+  SELECT rank() OVER ( ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   15   15   15   15
+  15   15   15   15   15   15   15   15   15   15   15   15   15   15   15
+  15   15   36   36   36   36   36   36   36   36   36   36   36   36   36
+  36   36   36   52   52   52   52   52   52   52   52   52   52   52   52
+  52   52   52   52   52   52   52   52   52   73   73   73   73   73   73
+  73   73   73   73   73   73   73   73   73   73   73   73   73   92   92
+  92   92   92   92   92   92   92   92   92   92   92   92   92   92   92
+  92   92   92   92   113   113   113   113   113   113   113   113   113
+  113   113   113   113   113   113   113   113   113   113   113   113   134
+  134   134   134   134   134   134   134   134   134   134   134   134   134
+  134   134   134   134   134   134   154   154   154   154   154   154   154
+  154   154   154   154   154   154   154   154   154   170   170   170   170
+  170   170   170   170   170   170   170   170   170   170   170   170   170
+  170   170   170   170   170}
+
+do_execsql_test 1.12.5.6 {
+  SELECT rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   15   15   15   15
+  15   15   15   15   15   15   15   15   15   15   15   15   31   31   31
+  31   31   31   31   31   31   31   31   31   31   31   31   31   31   31
+  31   50   50   50   50   50   50   50   50   50   50   50   50   50   50
+  50   50   50   50   50   50   50   71   71   71   71   71   71   71   71
+  71   71   71   71   71   71   71   71   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   22   22   22   22   22   22
+  22   22   22   22   22   22   22   22   22   22   22   22   22   22   22
+  43   43   43   43   43   43   43   43   43   43   43   43   43   43   43
+  43   43   43   43   43   43   64   64   64   64   64   64   64   64   64
+  64   64   64   64   64   64   64   64   64   64   64   84   84   84   84
+  84   84   84   84   84   84   84   84   84   84   84   84   84   84   84
+  84   84   84}
+
+do_execsql_test 1.12.6.1 {
+  SELECT 
+      row_number() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ),
+      rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ),
+      dense_rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING )
+    FROM t2
+} {1 1 1   2 1 1   3 1 1   4 1 1   5 1 1   6 1 1   7 1 1   8 1 1   9 1 1
+  10 1 1   11 1 1   12 1 1   13 1 1   14 1 1   15 15 2   16 15 2   17 15 2
+  18 15 2   19 15 2   20 15 2   21 15 2   22 15 2   23 15 2   24 15 2
+  25 15 2   26 15 2   27 15 2   28 15 2   29 15 2   30 15 2   31 31 3
+  32 31 3   33 31 3   34 31 3   35 31 3   36 31 3   37 31 3   38 31 3
+  39 31 3   40 31 3   41 31 3   42 31 3   43 31 3   44 31 3   45 31 3
+  46 31 3   47 31 3   48 31 3   49 31 3   50 50 4   51 50 4   52 50 4
+  53 50 4   54 50 4   55 50 4   56 50 4   57 50 4   58 50 4   59 50 4
+  60 50 4   61 50 4   62 50 4   63 50 4   64 50 4   65 50 4   66 50 4
+  67 50 4   68 50 4   69 50 4   70 50 4   71 71 5   72 71 5   73 71 5
+  74 71 5   75 71 5   76 71 5   77 71 5   78 71 5   79 71 5   80 71 5
+  81 71 5   82 71 5   83 71 5   84 71 5   85 71 5   86 71 5   1 1 1   2 1 1
+  3 1 1   4 1 1   5 1 1   6 1 1   7 1 1   8 1 1   9 1 1   10 1 1   11 1 1
+  12 1 1   13 1 1   14 1 1   15 1 1   16 1 1   17 1 1   18 1 1   19 1 1
+  20 1 1   21 1 1   22 22 2   23 22 2   24 22 2   25 22 2   26 22 2   27 22 2
+  28 22 2   29 22 2   30 22 2   31 22 2   32 22 2   33 22 2   34 22 2
+  35 22 2   36 22 2   37 22 2   38 22 2   39 22 2   40 22 2   41 22 2
+  42 22 2   43 43 3   44 43 3   45 43 3   46 43 3   47 43 3   48 43 3
+  49 43 3   50 43 3   51 43 3   52 43 3   53 43 3   54 43 3   55 43 3
+  56 43 3   57 43 3   58 43 3   59 43 3   60 43 3   61 43 3   62 43 3
+  63 43 3   64 64 4   65 64 4   66 64 4   67 64 4   68 64 4   69 64 4
+  70 64 4   71 64 4   72 64 4   73 64 4   74 64 4   75 64 4   76 64 4
+  77 64 4   78 64 4   79 64 4   80 64 4   81 64 4   82 64 4   83 64 4
+  84 84 5   85 84 5   86 84 5   87 84 5   88 84 5   89 84 5   90 84 5
+  91 84 5   92 84 5   93 84 5   94 84 5   95 84 5   96 84 5   97 84 5
+  98 84 5   99 84 5   100 84 5   101 84 5   102 84 5   103 84 5   104 84 5
+  105 84 5}
+
+
+do_test 1.12.7.1 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0053 0.0105 0.0158 0.0211 0.0263 0.0316 0.0368 0.0421 0.0474 0.0526 0.0579 0.0632 0.0684 0.0737 0.0789 0.0842 0.0895 0.0947 0.1000 0.1053 0.1105 0.1158 0.1211 0.1263 0.1316 0.1368 0.1421 0.1474 0.1526 0.1579 0.1632 0.1684 0.1737 0.1789 0.1842 0.1895 0.1947 0.2000 0.2053 0.2105 0.2158 0.2211 0.2263 0.2316 0.2368 0.2421 0.2474 0.2526 0.2579 0.2632 0.2684 0.2737 0.2789 0.2842 0.2895 0.2947 0.3000 0.3053 0.3105 0.3158 0.3211 0.3263 0.3316 0.3368 0.3421 0.3474 0.3526 0.3579 0.3632 0.3684 0.3737 0.3789 0.3842 0.3895 0.3947 0.4000 0.4053 0.4105 0.4158 0.4211 0.4263 0.4316 0.4368 0.4421 0.4474 0.4526 0.4579 0.4632 0.4684 0.4737 0.4789 0.4842 0.4895 0.4947 0.5000 0.5053 0.5105 0.5158 0.5211 0.5263 0.5316 0.5368 0.5421 0.5474 0.5526 0.5579 0.5632 0.5684 0.5737 0.5789 0.5842 0.5895 0.5947 0.6000 0.6053 0.6105 0.6158 0.6211 0.6263 0.6316 0.6368 0.6421 0.6474 0.6526 0.6579 0.6632 0.6684 0.6737 0.6789 0.6842 0.6895 0.6947 0.7000 0.7053 0.7105 0.7158 0.7211 0.7263 0.7316 0.7368 0.7421 0.7474 0.7526 0.7579 0.7632 0.7684 0.7737 0.7789 0.7842 0.7895 0.7947 0.8000 0.8053 0.8105 0.8158 0.8211 0.8263 0.8316 0.8368 0.8421 0.8474 0.8526 0.8579 0.8632 0.8684 0.8737 0.8789 0.8842 0.8895 0.8947 0.9000 0.9053 0.9105 0.9158 0.9211 0.9263 0.9316 0.9368 0.9421 0.9474 0.9526 0.9579 0.9632 0.9684 0.9737 0.9789 0.9842 0.9895 0.9947 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.12.7.2 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0769 0.1538 0.2308 0.3077 0.3846 0.4615 0.5385 0.6154 0.6923 0.7692 0.8462 0.9231 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0667 0.1333 0.2000 0.2667 0.3333 0.4000 0.4667 0.5333 0.6000 0.6667 0.7333 0.8000 0.8667 0.9333 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0556 0.1111 0.1667 0.2222 0.2778 0.3333 0.3889 0.4444 0.5000 0.5556 0.6111 0.6667 0.7222 0.7778 0.8333 0.8889 0.9444 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0526 0.1053 0.1579 0.2105 0.2632 0.3158 0.3684 0.4211 0.4737 0.5263 0.5789 0.6316 0.6842 0.7368 0.7895 0.8421 0.8947 0.9474 1.0000 0.0000 0.0667 0.1333 0.2000 0.2667 0.3333 0.4000 0.4667 0.5333 0.6000 0.6667 0.7333 0.8000 0.8667 0.9333 1.0000 0.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.12.7.3 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY b ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0105 0.0105 0.0211 0.0211 0.0316 0.0368 0.0421 0.0474 0.0474 0.0474 0.0632 0.0632 0.0632 0.0789 0.0789 0.0789 0.0947 0.1000 0.1000 0.1105 0.1105 0.1105 0.1263 0.1263 0.1368 0.1421 0.1421 0.1421 0.1579 0.1579 0.1579 0.1737 0.1789 0.1842 0.1895 0.1895 0.2000 0.2000 0.2105 0.2105 0.2211 0.2263 0.2316 0.2316 0.2421 0.2421 0.2526 0.2579 0.2579 0.2579 0.2737 0.2737 0.2737 0.2895 0.2895 0.3000 0.3053 0.3053 0.3053 0.3053 0.3263 0.3263 0.3263 0.3263 0.3474 0.3474 0.3579 0.3579 0.3579 0.3579 0.3789 0.3789 0.3895 0.3895 0.4000 0.4000 0.4000 0.4158 0.4211 0.4211 0.4316 0.4368 0.4368 0.4474 0.4474 0.4579 0.4579 0.4684 0.4684 0.4684 0.4684 0.4895 0.4947 0.5000 0.5053 0.5105 0.5158 0.5211 0.5211 0.5316 0.5316 0.5316 0.5474 0.5526 0.5526 0.5526 0.5526 0.5737 0.5737 0.5737 0.5737 0.5947 0.6000 0.6000 0.6105 0.6105 0.6211 0.6263 0.6316 0.6316 0.6316 0.6474 0.6526 0.6579 0.6632 0.6684 0.6737 0.6737 0.6737 0.6895 0.6895 0.6895 0.7053 0.7053 0.7053 0.7211 0.7211 0.7211 0.7368 0.7421 0.7421 0.7526 0.7526 0.7632 0.7684 0.7684 0.7789 0.7789 0.7789 0.7947 0.8000 0.8053 0.8053 0.8053 0.8053 0.8263 0.8263 0.8263 0.8421 0.8474 0.8474 0.8579 0.8632 0.8632 0.8632 0.8789 0.8789 0.8789 0.8947 0.8947 0.8947 0.8947 0.8947 0.9211 0.9211 0.9211 0.9368 0.9421 0.9421 0.9421 0.9579 0.9579 0.9579 0.9737 0.9737 0.9842 0.9842 0.9947 0.9947}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.12.7.4 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0769 0.1538 0.1538 0.1538 0.3846 0.4615 0.5385 0.6154 0.6923 0.6923 0.8462 0.8462 0.8462 0.0000 0.0000 0.1000 0.1000 0.2000 0.2000 0.3000 0.3000 0.4000 0.4000 0.5000 0.5500 0.5500 0.6500 0.6500 0.6500 0.8000 0.8000 0.8000 0.8000 0.8000 0.0000 0.0000 0.1333 0.1333 0.1333 0.3333 0.3333 0.4667 0.5333 0.6000 0.6667 0.6667 0.8000 0.8000 0.8000 1.0000 0.0000 0.0000 0.1000 0.1000 0.2000 0.2000 0.3000 0.3000 0.3000 0.3000 0.5000 0.5000 0.6000 0.6500 0.7000 0.7000 0.7000 0.8500 0.9000 0.9000 0.9000 0.0000 0.0556 0.1111 0.1667 0.1667 0.1667 0.1667 0.3889 0.3889 0.5000 0.5556 0.6111 0.6111 0.6111 0.7778 0.7778 0.7778 0.7778 1.0000 0.0000 0.0500 0.0500 0.0500 0.2000 0.2500 0.2500 0.3500 0.3500 0.4500 0.4500 0.4500 0.6000 0.6000 0.6000 0.7500 0.7500 0.7500 0.9000 0.9000 0.9000 0.0000 0.0500 0.0500 0.0500 0.2000 0.2000 0.3000 0.3000 0.3000 0.3000 0.5000 0.5000 0.6000 0.6000 0.6000 0.7500 0.8000 0.8500 0.9000 0.9000 0.9000 0.0000 0.0000 0.0000 0.1579 0.2105 0.2105 0.3158 0.3158 0.4211 0.4211 0.4211 0.4211 0.6316 0.6842 0.7368 0.7368 0.8421 0.8421 0.9474 0.9474 0.0000 0.0000 0.0000 0.2000 0.2667 0.2667 0.4000 0.4000 0.4000 0.4000 0.6667 0.7333 0.7333 0.8667 0.9333 0.9333 0.0000 0.0000 0.0000 0.1429 0.1905 0.1905 0.1905 0.3333 0.3333 0.3333 0.4762 0.5238 0.5238 0.5238 0.5238 0.7143 0.7619 0.8095 0.8095 0.8095 0.9524 0.9524}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.12.7.5 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.12.7.6 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER (PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.12.8.1 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0052 0.0105 0.0157 0.0209 0.0262 0.0314 0.0366 0.0419 0.0471 0.0524 0.0576 0.0628 0.0681 0.0733 0.0785 0.0838 0.0890 0.0942 0.0995 0.1047 0.1099 0.1152 0.1204 0.1257 0.1309 0.1361 0.1414 0.1466 0.1518 0.1571 0.1623 0.1675 0.1728 0.1780 0.1832 0.1885 0.1937 0.1990 0.2042 0.2094 0.2147 0.2199 0.2251 0.2304 0.2356 0.2408 0.2461 0.2513 0.2565 0.2618 0.2670 0.2723 0.2775 0.2827 0.2880 0.2932 0.2984 0.3037 0.3089 0.3141 0.3194 0.3246 0.3298 0.3351 0.3403 0.3455 0.3508 0.3560 0.3613 0.3665 0.3717 0.3770 0.3822 0.3874 0.3927 0.3979 0.4031 0.4084 0.4136 0.4188 0.4241 0.4293 0.4346 0.4398 0.4450 0.4503 0.4555 0.4607 0.4660 0.4712 0.4764 0.4817 0.4869 0.4921 0.4974 0.5026 0.5079 0.5131 0.5183 0.5236 0.5288 0.5340 0.5393 0.5445 0.5497 0.5550 0.5602 0.5654 0.5707 0.5759 0.5812 0.5864 0.5916 0.5969 0.6021 0.6073 0.6126 0.6178 0.6230 0.6283 0.6335 0.6387 0.6440 0.6492 0.6545 0.6597 0.6649 0.6702 0.6754 0.6806 0.6859 0.6911 0.6963 0.7016 0.7068 0.7120 0.7173 0.7225 0.7277 0.7330 0.7382 0.7435 0.7487 0.7539 0.7592 0.7644 0.7696 0.7749 0.7801 0.7853 0.7906 0.7958 0.8010 0.8063 0.8115 0.8168 0.8220 0.8272 0.8325 0.8377 0.8429 0.8482 0.8534 0.8586 0.8639 0.8691 0.8743 0.8796 0.8848 0.8901 0.8953 0.9005 0.9058 0.9110 0.9162 0.9215 0.9267 0.9319 0.9372 0.9424 0.9476 0.9529 0.9581 0.9634 0.9686 0.9738 0.9791 0.9843 0.9895 0.9948 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.12.8.2 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0714 0.1429 0.2143 0.2857 0.3571 0.4286 0.5000 0.5714 0.6429 0.7143 0.7857 0.8571 0.9286 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0625 0.1250 0.1875 0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250 0.6875 0.7500 0.8125 0.8750 0.9375 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0526 0.1053 0.1579 0.2105 0.2632 0.3158 0.3684 0.4211 0.4737 0.5263 0.5789 0.6316 0.6842 0.7368 0.7895 0.8421 0.8947 0.9474 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0625 0.1250 0.1875 0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250 0.6875 0.7500 0.8125 0.8750 0.9375 1.0000 0.0455 0.0909 0.1364 0.1818 0.2273 0.2727 0.3182 0.3636 0.4091 0.4545 0.5000 0.5455 0.5909 0.6364 0.6818 0.7273 0.7727 0.8182 0.8636 0.9091 0.9545 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.12.8.3 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY b ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0105 0.0105 0.0209 0.0209 0.0314 0.0314 0.0366 0.0419 0.0471 0.0628 0.0628 0.0628 0.0785 0.0785 0.0785 0.0942 0.0942 0.0942 0.0995 0.1099 0.1099 0.1257 0.1257 0.1257 0.1361 0.1361 0.1414 0.1571 0.1571 0.1571 0.1728 0.1728 0.1728 0.1780 0.1832 0.1885 0.1990 0.1990 0.2094 0.2094 0.2199 0.2199 0.2251 0.2304 0.2408 0.2408 0.2513 0.2513 0.2565 0.2723 0.2723 0.2723 0.2880 0.2880 0.2880 0.2984 0.2984 0.3037 0.3246 0.3246 0.3246 0.3246 0.3455 0.3455 0.3455 0.3455 0.3560 0.3560 0.3770 0.3770 0.3770 0.3770 0.3874 0.3874 0.3979 0.3979 0.4136 0.4136 0.4136 0.4188 0.4293 0.4293 0.4346 0.4450 0.4450 0.4555 0.4555 0.4660 0.4660 0.4869 0.4869 0.4869 0.4869 0.4921 0.4974 0.5026 0.5079 0.5131 0.5183 0.5288 0.5288 0.5445 0.5445 0.5445 0.5497 0.5707 0.5707 0.5707 0.5707 0.5916 0.5916 0.5916 0.5916 0.5969 0.6073 0.6073 0.6178 0.6178 0.6230 0.6283 0.6440 0.6440 0.6440 0.6492 0.6545 0.6597 0.6649 0.6702 0.6859 0.6859 0.6859 0.7016 0.7016 0.7016 0.7173 0.7173 0.7173 0.7330 0.7330 0.7330 0.7382 0.7487 0.7487 0.7592 0.7592 0.7644 0.7749 0.7749 0.7906 0.7906 0.7906 0.7958 0.8010 0.8220 0.8220 0.8220 0.8220 0.8377 0.8377 0.8377 0.8429 0.8534 0.8534 0.8586 0.8743 0.8743 0.8743 0.8901 0.8901 0.8901 0.9162 0.9162 0.9162 0.9162 0.9162 0.9319 0.9319 0.9319 0.9372 0.9529 0.9529 0.9529 0.9686 0.9686 0.9686 0.9791 0.9791 0.9895 0.9895 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.12.8.4 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0714 0.1429 0.3571 0.3571 0.3571 0.4286 0.5000 0.5714 0.6429 0.7857 0.7857 1.0000 1.0000 1.0000 0.0952 0.0952 0.1905 0.1905 0.2857 0.2857 0.3810 0.3810 0.4762 0.4762 0.5238 0.6190 0.6190 0.7619 0.7619 0.7619 1.0000 1.0000 1.0000 1.0000 1.0000 0.1250 0.1250 0.3125 0.3125 0.3125 0.4375 0.4375 0.5000 0.5625 0.6250 0.7500 0.7500 0.9375 0.9375 0.9375 1.0000 0.0952 0.0952 0.1905 0.1905 0.2857 0.2857 0.4762 0.4762 0.4762 0.4762 0.5714 0.5714 0.6190 0.6667 0.8095 0.8095 0.8095 0.8571 1.0000 1.0000 1.0000 0.0526 0.1053 0.1579 0.3684 0.3684 0.3684 0.3684 0.4737 0.4737 0.5263 0.5789 0.7368 0.7368 0.7368 0.9474 0.9474 0.9474 0.9474 1.0000 0.0476 0.1905 0.1905 0.1905 0.2381 0.3333 0.3333 0.4286 0.4286 0.5714 0.5714 0.5714 0.7143 0.7143 0.7143 0.8571 0.8571 0.8571 1.0000 1.0000 1.0000 0.0476 0.1905 0.1905 0.1905 0.2857 0.2857 0.4762 0.4762 0.4762 0.4762 0.5714 0.5714 0.7143 0.7143 0.7143 0.7619 0.8095 0.8571 1.0000 1.0000 1.0000 0.1500 0.1500 0.1500 0.2000 0.3000 0.3000 0.4000 0.4000 0.6000 0.6000 0.6000 0.6000 0.6500 0.7000 0.8000 0.8000 0.9000 0.9000 1.0000 1.0000 0.1875 0.1875 0.1875 0.2500 0.3750 0.3750 0.6250 0.6250 0.6250 0.6250 0.6875 0.8125 0.8125 0.8750 1.0000 1.0000 0.1364 0.1364 0.1364 0.1818 0.3182 0.3182 0.3182 0.4545 0.4545 0.4545 0.5000 0.6818 0.6818 0.6818 0.6818 0.7273 0.7727 0.9091 0.9091 0.9091 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.12.8.5 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.12.8.6 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.12.8.1 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(100) OVER ( ORDER BY a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 88.0000 89.0000 89.0000 90.0000 90.0000 91.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.12.8.2 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(101) OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 22.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.12.8.3 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(102) OVER ( ORDER BY b,a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 88.0000 89.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.12.8.4 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(103) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 22.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.12.8.5 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(104) OVER ( ORDER BY b%10,a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000 103.0000 104.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.12.8.6 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(105) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.12.8.7 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(105) OVER ( ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 88.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000 103.0000 104.0000 105.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+do_execsql_test 1.12.9.1 {
+  SELECT last_value(a+b) OVER ( ORDER BY a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2
+} {52   83   55   79   109   65   26   120   119   50   70   103   80   124
+  36   96   59   124   116   110   57   51   52   130   103   74   87   48
+  128   117   105   136   131   71   133   92   109   63   84   109   57
+  146   78   147   113   74   88   150   87   110   65   121   106   110
+  124   85   145   107   161   171   150   156   80   171   120   109   158
+  114   111   136   147   87   173   124   168   173   162   132   101   154
+  167   190   161   110   156   195   198   102   123   177   169   140   111
+  180   119   160   197   152   124   121   134   146   147   132   213   141
+  193   200   210   157   132   136   175   161   218   188   226   191   187
+  208   211   179   138   144   223   196   214   170   212   202   163   184
+  172   173   195   229   240   187   210   200   163   227   228   223   191
+  252   235   225   243   172   187   202   179   179   182   231   261   207
+  263   206   189   209   212   276   181   274   249   239   234   213   234
+  269   196   271   221   210   229   235   250   223   232   229   279   224
+  280   216   207   207   207   207   207}
+
+do_execsql_test 1.12.9.2 {
+  SELECT last_value(a+b) OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2
+} {134   218   191   212   229   240   213   234   196   223   223   223   223
+  223   146   65   156   132   154   102   123   119   160   152   146   147
+  136   243   261   263   210   210   210   210   210   120   87   162   124
+  141   138   227   228   179   231   234   280   280   280   280   280   57
+  110   114   136   147   167   110   180   193   191   252   187   179   206
+  181   221   279   279   279   279   279   80   171   173   177   157   161
+  179   214   225   182   209   269   271   235   229   229   229   229   229
+  113   74   87   145   190   161   169   140   111   132   213   187   208
+  223   235   189   274   274   274   274   274   51   52   128   109   121
+  124   85   107   150   195   226   172   173   187   223   207   212   212
+  212   212   212   110   87   48   110   173   124   197   211   144   196
+  195   200   202   224   216   207   207   207   207   207   88   171   158
+  156   198   121   210   132   210   239   250   232   232   232   232   232
+  59   109   150   161   111   101   200   175   188   170   202   163   184
+  163   172   276   249   229   229   229   229   229}
+
+do_execsql_test 1.12.9.3 {
+  SELECT last_value(a+b) OVER ( ORDER BY b,a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2
+} {57   181   80   111   26   48   144   207   36   121   132   101   163
+  172   196   119   136   63   124   179   110   179   182   74   132   189
+  51   52   85   216   163   134   123   210   78   141   57   187   71   87
+  172   173   50   224   88   59   111   170   109   213   223   146   147
+  84   114   191   206   221   157   161   209   229   74   140   107   187
+  207   212   124   202   52   232   55   184   229   106   132   152   120
+  92   110   179   235   65   70   87   110   195   200   175   234   160
+  234   136   80   113   187   109   121   124   196   156   210   239   250
+  72   109   188   202   191   105   154   79   231   147   225   103   161
+  169   223   96   83   249   212   162   227   228   167   180   193   117
+  177   214   145   208   235   150   110   211   103   158   200   168   229
+  92   156   243   280   279   116   173   269   271   131   133   223   128
+  173   197   210   99   150   161   147   218   240   109   136   146   261
+  263   124   130   252   171   190   213   274   108   195   226   119   124
+  171   198   120   276   276   276   276   276}
+
+do_execsql_test 1.12.9.4 {
+  SELECT last_value(a+b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2
+} {223   106   234   191   212   168   229   147   218   240   240   240   240
+  240   123   210   146   147   132   152   160   105   154   92   156   243
+  109   136   146   261   263   263   263   263   263   179   78   141   84
+  120   234   79   231   162   227   228   280   280   280   280   280   57
+  187   114   191   206   221   92   110   136   147   167   180   193   279
+  124   130   252   252   252   252   252   161   209   229   179   235   80
+  225   117   177   214   116   173   269   271   171   171   171   171   171
+  87   74   140   113   187   103   161   169   145   208   235   131   133
+  223   190   213   274   274   274   274   274   172   173   107   187   207
+  212   65   70   109   121   124   223   150   128   108   195   226   226
+  226   226   226   50   224   124   202   87   110   195   200   196   96
+  110   211   173   197   119   124   124   124   124   124   52   232   156
+  210   239   250   83   103   158   210   171   198   198   198   198   198
+  59   111   170   55   184   229   175   72   109   188   202   249   200
+  99   150   161   120   276   276   276   276   276}
+
+do_execsql_test 1.12.9.5 {
+  SELECT last_value(a+b) OVER ( ORDER BY b%10,a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2
+} {134   218   191   212   229   240   213   234   196   223   92   109   105
+  136   146   65   156   132   154   102   123   119   160   152   146   147
+  136   243   261   263   210   79   63   84   78   120   87   162   124
+  141   138   227   228   179   231   234   280   124   57   130   92   57
+  110   114   136   147   167   110   180   193   191   252   187   179   206
+  181   221   279   80   116   117   71   80   171   173   177   157   161
+  179   214   225   182   209   269   271   235   229   103   74   131   133
+  113   74   87   145   190   161   169   140   111   132   213   187   208
+  223   235   189   274   108   65   26   70   51   52   128   109   121
+  124   85   107   150   195   226   172   173   187   223   207   212   119
+  50   124   96   110   87   48   110   173   124   197   211   144   196
+  195   200   202   224   216   207   52   83   103   36   88   171   158
+  156   198   121   210   132   210   239   250   232   99   72   55   120
+  59   109   150   161   111   101   200   175   188   170   202   163   184
+  163   172   276   249   229   229   229   229   229}
+
+do_execsql_test 1.12.9.6 {
+  SELECT last_value(a+b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING) FROM t2
+} {108   52   83   79   65   26   70   103   80   36   116   51   52   128
+  117   71   63   84   109   78   147   88   121   106   124   85   107   171
+  150   80   171   120   109   158   87   168   173   162   156   195   198
+  177   124   121   134   141   210   157   132   161   218   226   191   179
+  138   214   212   172   173   229   240   187   210   227   228   223   225
+  179   182   231   207   209   212   239   234   213   234   269   196   271
+  235   250   223   232   229   280   99   92   72   55   109   120   119
+  50   124   96   59   124   110   57   130   103   74   87   48   105   136
+  131   133   92   109   57   146   113   74   150   87   110   65   110
+  145   161   156   114   111   136   147   173   124   132   101   154   167
+  190   161   110   102   123   169   140   111   180   119   160   197   152
+  146   147   132   213   193   200   136   175   188   187   208   211   144
+  223   196   170   202   163   184   195   200   163   191   252   235   243
+  172   187   202   179   261   263   206   189   276   181   274   249   221
+  210   229   279   224   216   207}
+
+do_execsql_test 1.12.10.1 {
+  SELECT nth_value(b,b+1) OVER (ORDER BY a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   90
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   56   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   78   {}   {}   {}   {}   {}   {}   {}   {}
+  37   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   21   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   85   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   58   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.12.10.2 {
+  SELECT nth_value(b,b+1) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   81   {}   {}   {}   21   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   12   {}   {}   {}   72
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   53   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   34   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.12.10.3 {
+  SELECT nth_value(b,b+1) OVER ( ORDER BY b,a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2
+} {1   2   3   3   5   6   7   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.12.10.4 {
+  SELECT nth_value(b,b+1) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   1
+  11   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   12   12   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   13   23   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   34   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.12.10.5 {
+  SELECT nth_value(b,b+1) OVER ( ORDER BY b%10,a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   81   {}   {}   {}   21   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   12   {}   {}   {}   72
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   53   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   54   {}   {}   {}   {}   {}
+  {}   34   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.12.10.6 {
+  SELECT nth_value(b,b+1) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.12.11.1 {
+  SELECT first_value(b) OVER (ORDER BY a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING) FROM t2
+} {89   81   96   59   38   68   39   62   91   46   6   99   97   27   46
+  78   54   97   8   67   29   93   84   77   23   16   16   93   65   35
+  47   7   86   74   61   91   85   24   85   43   59   12   32   56   3   91
+  22   90   55   15   28   89   25   47   1   56   40   43   56   16   75
+  36   89   98   76   81   4   94   42   30   78   33   29   53   63   2   87
+  37   80   84   72   41   9   61   73   95   65   13   58   96   98   1   21
+  74   65   35   5   73   11   51   87   41   12   8   20   31   31   15   95
+  22   73   79   88   34   8   11   49   34   90   59   96   60   55   75
+  77   44   2   7   85   57   74   29   70   59   19   39   26   26   47   80
+  90   36   58   47   9   72   72   66   33   93   75   64   81   9   23   37
+  13   12   14   62   91   36   91   33   15   34   36   99   3   95   69
+  58   52   30   50   84   10   84   33   21   39   44   58   30   38   34
+  83   27   82   17   7}
+
+do_execsql_test 1.12.11.2 {
+  SELECT first_value(b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING) FROM t2
+} {90   40   30   80   20   90   60   70   80   90   30   50   10   30   81
+  91   61   91   91   1   81   41   61   1   21   11   51   41   31   31   11
+  81   91   91   21   62   12   32   22   42   2   72   12   22   2   72   72
+  12   62   52   82   93   23   93   43   3   43   33   53   63   73   13
+  73   73   33   93   23   13   33   3   33   83   54   84   74   24   4   94
+  84   74   34   34   44   74   64   14   34   84   84   44   34   65   35
+  85   85   55   15   25   75   95   65   65   35   5   15   95   55   75
+  85   75   15   95   96   46   6   46   16   16   86   56   56   56   16
+  36   76   96   96   26   26   36   66   36   36   97   27   97   67   77
+  47   7   47   87   37   87   77   7   57   47   47   37   27   17   7   38
+  68   78   8   28   98   78   58   98   8   88   8   58   58   58   38   89
+  59   39   99   29   59   89   89   29   9   79   49   59   29   59   19
+  39   9   9   99   69   39}
+
+do_execsql_test 1.12.11.3 {
+  SELECT first_value(b) OVER ( ORDER BY b,a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2
+} {1   1   2   2   3   3   4   5   6   7   7   7   8   8   8   9   9   9   10
+  11   11   12   12   12   13   13   14   15   15   15   16   16   16   17
+  19   20   21   21   22   22   23   23   24   25   26   26   27   27   28
+  29   29   29   30   30   30   31   31   32   33   33   33   33   34   34
+  34   34   35   35   36   36   36   36   37   37   38   38   39   39   39
+  40   41   41   42   43   43   44   44   46   46   47   47   47   47   49
+  50   51   52   53   54   55   55   56   56   56   57   58   58   58   58
+  59   59   59   59   60   61   61   62   62   63   64   65   65   65   66
+  67   68   69   70   72   72   72   73   73   73   74   74   74   75   75
+  75   76   77   77   78   78   79   80   80   81   81   81   82   83   84
+  84   84   84   85   85   85   86   87   87   88   89   89   89   90   90
+  90   91   91   91   91   91   93   93   93   94   95   95   95   96   96
+  96   97   97   98   98   99   99}
+
+do_execsql_test 1.12.11.4 {
+  SELECT first_value(b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2
+} {10   20   30   30   30   40   50   60   70   80   80   90   90   90   1   1
+  11   11   21   21   31   31   41   41   51   61   61   81   81   81   91
+  91   91   91   91   2   2   12   12   12   22   22   32   42   52   62   62
+  72   72   72   82   3   3   13   13   23   23   33   33   33   33   43   43
+  53   63   73   73   73   83   93   93   93   4   14   24   34   34   34
+  34   44   44   54   64   74   74   74   84   84   84   84   94   5   15
+  15   15   25   35   35   55   55   65   65   65   75   75   75   85   85
+  85   95   95   95   6   16   16   16   26   26   36   36   36   36   46
+  46   56   56   56   66   76   86   96   96   96   7   7   7   17   27   27
+  37   37   47   47   47   47   57   67   77   77   87   87   97   97   8   8
+  8   28   38   38   58   58   58   58   68   78   78   88   98   98   9   9
+  9   19   29   29   29   39   39   39   49   59   59   59   59   69   79
+  89   89   89   99   99}
+
+do_execsql_test 1.12.11.5 {
+  SELECT first_value(b) OVER ( ORDER BY b%10,a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2
+} {90   40   30   80   20   90   60   70   80   90   30   50   10   30   81
+  91   61   91   91   1   81   41   61   1   21   11   51   41   31   31   11
+  81   91   91   21   62   12   32   22   42   2   72   12   22   2   72   72
+  12   62   52   82   93   23   93   43   3   43   33   53   63   73   13
+  73   73   33   93   23   13   33   3   33   83   54   84   74   24   4   94
+  84   74   34   34   44   74   64   14   34   84   84   44   34   65   35
+  85   85   55   15   25   75   95   65   65   35   5   15   95   55   75
+  85   75   15   95   96   46   6   46   16   16   86   56   56   56   16
+  36   76   96   96   26   26   36   66   36   36   97   27   97   67   77
+  47   7   47   87   37   87   77   7   57   47   47   37   27   17   7   38
+  68   78   8   28   98   78   58   98   8   88   8   58   58   58   38   89
+  59   39   99   29   59   89   89   29   9   79   49   59   29   59   19
+  39   9   9   99   69   39}
+
+do_execsql_test 1.12.11.6 {
+  SELECT first_value(b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING) FROM t2
+} {96   38   68   62   46   6   46   78   54   8   84   16   16   86   74   24
+  12   32   56   22   90   28   56   40   56   16   36   98   76   4   94
+  42   30   78   2   80   84   72   58   96   98   74   12   8   20   22   88
+  34   8   34   90   96   60   44   2   74   70   26   26   80   90   36   58
+  72   72   66   64   12   14   62   36   34   36   58   52   30   50   84
+  10   84   44   58   30   38   34   82   89   81   59   39   91   99   97
+  27   97   67   29   93   77   23   93   65   35   47   7   61   91   85
+  85   43   59   3   91   55   15   89   25   47   1   43   75   89   81   33
+  29   53   63   87   37   41   9   61   73   95   65   13   1   21   65   35
+  5   73   11   51   87   41   31   31   15   95   73   79   11   49   59
+  55   75   77   7   85   57   29   59   19   39   47   47   9   33   93   75
+  81   9   23   37   13   91   91   33   15   99   3   95   69   33   21   39
+  83   27   17   7}
+
+do_execsql_test 1.12.12.1 {
+  SELECT lead(b,b) OVER (ORDER BY a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING) FROM t2
+} {96   9   11   89   32   53   91   30   51   56   54   73   22   59   75
+  74   78   8   16   65   15   8   31   87   90   12   32   96   74   76   37
+  85   90   15   35   2   60   36   75   9   51   47   63   51   90   26   42
+  26   8   76   80   90   37   87   56   79   5   87   8   2   39   73   64
+  36   90   72   78   36   73   51   33   20   41   2   26   37   33   8   14
+  33   81   55   1   9   12   39   64   87   72   34   82   21   34   99   62
+  74   41   69   22   75   27   58   8   79   77   26   26   55   {}   29
+  30   7   {}   66   55   2   34   64   {}   33   {}   44   84   {}   {}   95
+  85   19   {}   83   {}   91   {}   {}   9   50   91   33   34   {}   {}
+  84   {}   7   9   {}   {}   {}   44   {}   {}   {}   {}   91   84   {}   95
+  95   52   {}   {}   {}   {}   {}   21   {}   {}   {}   58   {}   {}   {}
+  {}   {}   {}   {}   83   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}}
+
+do_execsql_test 1.12.12.2 {
+  SELECT lead(b,b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   81   {}   {}   {}   21   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   62   {}   {}   {}   12   {}   {}   {}   72
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   53   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   34   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   95   {}   {}   {}   {}   {}   {}   85   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   56   {}   36   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   57   {}   {}   {}   {}   {}   7   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   8   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.12.12.3 {
+  SELECT lead(b,b) OVER ( ORDER BY b,a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2
+} {1   2   3   3   5   6   7   8   8   9   9   10   11   12   12   13   13
+  14   15   16   16   17   19   20   21   22   23   24   25   26   27   27
+  28   29   30   31   32   33   33   33   34   34   35   36   36   36   37
+  38   39   39   40   41   42   43   43   44   46   47   47   47   49   50
+  52   53   54   55   56   56   57   58   58   58   59   59   59   60   61
+  62   62   64   65   65   67   69   70   72   72   73   74   74   75   75
+  75   77   78   80   81   81   83   84   84   85   85   85   87   88   89
+  89   89   90   90   91   91   91   93   93   94   95   95   96   97   97
+  98   99   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.12.12.4 {
+  SELECT lead(b,b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2
+} {80   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   1
+  11   81   81   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   12   12   72   82   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   13   23   73   73   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   34   84   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   35   85   85   95   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   36   86   96   96   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   37   47
+  47   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   58   58   68   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   39   49   59   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.12.12.5 {
+  SELECT lead(b,b) OVER ( ORDER BY b%10,a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2
+} {34   72   91   74   21   55   23   94   84   95   2   13   61   22   55
+  55   94   85   75   81   65   73   74   21   72   12   94   33   63   73
+  72   96   36   76   3   25   62   3   73   34   12   46   43   93   72   16
+  86   63   15   65   36   77   24   57   25   53   95   34   95   16   97
+  74   97   67   25   98   44   34   65   54   5   68   96   28   47   95
+  34   39   8   38   6   46   96   28   47   95   56   39   99   97   76   8
+  26   9   79   27   95   16   29   {}   58   58   77   85   56   {}   98
+  29   {}   19   96   {}   {}   78   56   98   36   97   {}   89   89   29
+  47   78   {}   {}   {}   38   68   58   {}   58   38   {}   98   {}   {}
+  {}   39   57   9   {}   79   {}   {}   7   {}   {}   {}   9   29   38   78
+  {}   {}   {}   8   39   {}   {}   {}   {}   59   {}   99   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.12.12.6 {
+  SELECT lead(b,b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.12.13.1 {
+  SELECT lag(b,b) OVER (ORDER BY a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   38   {}   {}   {}   {}
+  {}   {}   {}   6   {}   {}   {}   {}   {}   81   46   6   {}   {}   {}   {}
+  23   {}   {}   {}   {}   {}   27   {}   {}   {}   35   6   {}   12   {}
+  23   {}   {}   61   84   {}   93   39   47   {}   54   46   96   56   {}
+  16   {}   {}   {}   {}   89   {}   16   43   {}   85   56   29   99   53
+  {}   59   {}   {}   91   59   53   84   99   {}   93   63   47   {}   {}
+  98   33   67   35   75   1   23   13   55   27   75   98   35   73   63   2
+  21   27   13   24   86   23   84   31   20   94   61   65   75   23   36
+  94   55   90   41   77   96   56   29   40   12   89   63   11   5   73
+  79   1   16   28   31   73   5   39   53   63   41   11   40   2   13   33
+  9   29   90   47   72   9   73   30   44   33   74   93   29   74   42   34
+  63   41   34   96   47   77   1   36   74   72   14   36   26   77   9   72
+  64   8   91   31   52   30}
+
+do_execsql_test 1.12.13.2 {
+  SELECT lag(b,b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   61   {}   81   {}   {}   {}   {}
+  1   {}   {}   {}   {}   {}   {}   {}   {}   {}   22   {}   {}   {}   12
+  {}   {}   62   {}   {}   {}   {}   {}   {}   {}   23   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   43   {}   23   {}   {}   {}   {}   {}
+  {}   54   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   75   {}
+  {}   {}   {}   {}   {}   55   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   47   {}   {}   {}   {}
+  {}   27   7   {}   {}   {}   {}   {}   {}   {}   {}   {}   68   {}   8   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   89   {}   {}
+  {}   {}   {}   {}   {}   29   9   {}   {}   {}}
+
+do_execsql_test 1.12.13.3 {
+  SELECT lag(b,b) OVER ( ORDER BY b,a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2
+} {{}   1   1   1   1   2   2   2   2   2   2   3   3   3   4   4   5   6   6
+  6   7   7   7   7   7   8   8   8   8   8   8   9   9   9   9   9   9   9
+  9   9   9   10   10   10   10   11   11   11   11   11   12   12   12   12
+  13   13   13   13   13   14   15   15   15   15   16   16   16   16   16
+  17   19   20   20   21   21   21   21   22   22   22   22   23   23   23
+  23   23   24   23   24   24   25   26   26   26   26   26   26   26   26
+  26   26   26   27   27   27   27   28   29   29   29   29   30   30   30
+  30   30   30   31   31   31   31   31   32   32   32   32   32   32   31
+  32   33   33   33   33   33   33   34   34   34   34   34   34   34   34
+  35   35   35   35   35   36   36   36   36   36   36   36   37   37   37
+  38   38   38   38   38   38   39   39   39   39   40   40   41   41   42
+  43   42   43   43   43   43   44   44   44   46   46   46   47   47   47
+  47   47}
+
+do_execsql_test 1.12.13.4 {
+  SELECT lag(b,b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  1   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.12.13.5 {
+  SELECT lag(b,b) OVER ( ORDER BY b%10,a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   61   80   81   {}   {}   {}   {}
+  1   {}   {}   {}   30   {}   21   90   61   {}   22   {}   11   41   12
+  {}   {}   62   {}   {}   {}   {}   31   {}   50   23   30   21   90   {}
+  {}   62   {}   {}   81   {}   22   43   62   23   32   {}   91   {}   90
+  93   54   {}   {}   90   72   12   22   90   81   83   23   80   20   72
+  43   51   33   80   90   2   34   54   1   20   62   12   13   75   44   30
+  93   91   1   21   55   61   61   13   85   3   65   65   91   73   33   93
+  55   84   62   31   11   65   35   85   33   55   15   12   75   22   3
+  73   65   36   85   43   95   43   13   47   44   65   65   96   36   27
+  7   46   34   94   47   36   73   34   35   73   68   24   8   75   85   75
+  66   34   95   36   84   77   46   34   84   47   89   65   36   16   38
+  76   58   57   29   9   44   56   17}
+
+do_execsql_test 1.12.13.6 {
+  SELECT lag(b,b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.12.14.1 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (ORDER BY a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING) FROM t2
+} {89.81.96.59.38   81.96.59.38.68   96.59.38.68.39   59.38.68.39.62
+  38.68.39.62.91   68.39.62.91.46   39.62.91.46.6   62.91.46.6.99
+  91.46.6.99.97   46.6.99.97.27   6.99.97.27.46   99.97.27.46.78
+  97.27.46.78.54   27.46.78.54.97   46.78.54.97.8   78.54.97.8.67
+  54.97.8.67.29   97.8.67.29.93   8.67.29.93.84   67.29.93.84.77
+  29.93.84.77.23   93.84.77.23.16   84.77.23.16.16   77.23.16.16.93
+  23.16.16.93.65   16.16.93.65.35   16.93.65.35.47   93.65.35.47.7
+  65.35.47.7.86   35.47.7.86.74   47.7.86.74.61   7.86.74.61.91
+  86.74.61.91.85   74.61.91.85.24   61.91.85.24.85   91.85.24.85.43
+  85.24.85.43.59   24.85.43.59.12   85.43.59.12.32   43.59.12.32.56
+  59.12.32.56.3   12.32.56.3.91   32.56.3.91.22   56.3.91.22.90
+  3.91.22.90.55   91.22.90.55.15   22.90.55.15.28   90.55.15.28.89
+  55.15.28.89.25   15.28.89.25.47   28.89.25.47.1   89.25.47.1.56
+  25.47.1.56.40   47.1.56.40.43   1.56.40.43.56   56.40.43.56.16
+  40.43.56.16.75   43.56.16.75.36   56.16.75.36.89   16.75.36.89.98
+  75.36.89.98.76   36.89.98.76.81   89.98.76.81.4   98.76.81.4.94
+  76.81.4.94.42   81.4.94.42.30   4.94.42.30.78   94.42.30.78.33
+  42.30.78.33.29   30.78.33.29.53   78.33.29.53.63   33.29.53.63.2
+  29.53.63.2.87   53.63.2.87.37   63.2.87.37.80   2.87.37.80.84
+  87.37.80.84.72   37.80.84.72.41   80.84.72.41.9   84.72.41.9.61
+  72.41.9.61.73   41.9.61.73.95   9.61.73.95.65   61.73.95.65.13
+  73.95.65.13.58   95.65.13.58.96   65.13.58.96.98   13.58.96.98.1
+  58.96.98.1.21   96.98.1.21.74   98.1.21.74.65   1.21.74.65.35
+  21.74.65.35.5   74.65.35.5.73   65.35.5.73.11   35.5.73.11.51
+  5.73.11.51.87   73.11.51.87.41   11.51.87.41.12   51.87.41.12.8
+  87.41.12.8.20   41.12.8.20.31   12.8.20.31.31   8.20.31.31.15
+  20.31.31.15.95   31.31.15.95.22   31.15.95.22.73   15.95.22.73.79
+  95.22.73.79.88   22.73.79.88.34   73.79.88.34.8   79.88.34.8.11
+  88.34.8.11.49   34.8.11.49.34   8.11.49.34.90   11.49.34.90.59
+  49.34.90.59.96   34.90.59.96.60   90.59.96.60.55   59.96.60.55.75
+  96.60.55.75.77   60.55.75.77.44   55.75.77.44.2   75.77.44.2.7
+  77.44.2.7.85   44.2.7.85.57   2.7.85.57.74   7.85.57.74.29   85.57.74.29.70
+  57.74.29.70.59   74.29.70.59.19   29.70.59.19.39   70.59.19.39.26
+  59.19.39.26.26   19.39.26.26.47   39.26.26.47.80   26.26.47.80.90
+  26.47.80.90.36   47.80.90.36.58   80.90.36.58.47   90.36.58.47.9
+  36.58.47.9.72   58.47.9.72.72   47.9.72.72.66   9.72.72.66.33
+  72.72.66.33.93   72.66.33.93.75   66.33.93.75.64   33.93.75.64.81
+  93.75.64.81.9   75.64.81.9.23   64.81.9.23.37   81.9.23.37.13
+  9.23.37.13.12   23.37.13.12.14   37.13.12.14.62   13.12.14.62.91
+  12.14.62.91.36   14.62.91.36.91   62.91.36.91.33   91.36.91.33.15
+  36.91.33.15.34   91.33.15.34.36   33.15.34.36.99   15.34.36.99.3
+  34.36.99.3.95   36.99.3.95.69   99.3.95.69.58   3.95.69.58.52
+  95.69.58.52.30   69.58.52.30.50   58.52.30.50.84   52.30.50.84.10
+  30.50.84.10.84   50.84.10.84.33   84.10.84.33.21   10.84.33.21.39
+  84.33.21.39.44   33.21.39.44.58   21.39.44.58.30   39.44.58.30.38
+  44.58.30.38.34   58.30.38.34.83   30.38.34.83.27   38.34.83.27.82
+  34.83.27.82.17   83.27.82.17.7   27.82.17.7   82.17.7   17.7   7}
+
+do_execsql_test 1.12.14.2 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING) FROM t2
+} {90.40.30.80.20   40.30.80.20.90   30.80.20.90.60   80.20.90.60.70
+  20.90.60.70.80   90.60.70.80.90   60.70.80.90.30   70.80.90.30.50
+  80.90.30.50.10   90.30.50.10.30   30.50.10.30   50.10.30   10.30   30
+  81.91.61.91.91   91.61.91.91.1   61.91.91.1.81   91.91.1.81.41
+  91.1.81.41.61   1.81.41.61.1   81.41.61.1.21   41.61.1.21.11
+  61.1.21.11.51   1.21.11.51.41   21.11.51.41.31   11.51.41.31.31
+  51.41.31.31.11   41.31.31.11.81   31.31.11.81.91   31.11.81.91.91
+  11.81.91.91.21   81.91.91.21   91.91.21   91.21   21   62.12.32.22.42
+  12.32.22.42.2   32.22.42.2.72   22.42.2.72.12   42.2.72.12.22
+  2.72.12.22.2   72.12.22.2.72   12.22.2.72.72   22.2.72.72.12
+  2.72.72.12.62   72.72.12.62.52   72.12.62.52.82   12.62.52.82   62.52.82
+  52.82   82   93.23.93.43.3   23.93.43.3.43   93.43.3.43.33   43.3.43.33.53
+  3.43.33.53.63   43.33.53.63.73   33.53.63.73.13   53.63.73.13.73
+  63.73.13.73.73   73.13.73.73.33   13.73.73.33.93   73.73.33.93.23
+  73.33.93.23.13   33.93.23.13.33   93.23.13.33.3   23.13.33.3.33
+  13.33.3.33.83   33.3.33.83   3.33.83   33.83   83   54.84.74.24.4
+  84.74.24.4.94   74.24.4.94.84   24.4.94.84.74   4.94.84.74.34
+  94.84.74.34.34   84.74.34.34.44   74.34.34.44.74   34.34.44.74.64
+  34.44.74.64.14   44.74.64.14.34   74.64.14.34.84   64.14.34.84.84
+  14.34.84.84.44   34.84.84.44.34   84.84.44.34   84.44.34   44.34   34
+  65.35.85.85.55   35.85.85.55.15   85.85.55.15.25   85.55.15.25.75
+  55.15.25.75.95   15.25.75.95.65   25.75.95.65.65   75.95.65.65.35
+  95.65.65.35.5   65.65.35.5.15   65.35.5.15.95   35.5.15.95.55
+  5.15.95.55.75   15.95.55.75.85   95.55.75.85.75   55.75.85.75.15
+  75.85.75.15.95   85.75.15.95   75.15.95   15.95   95   96.46.6.46.16
+  46.6.46.16.16   6.46.16.16.86   46.16.16.86.56   16.16.86.56.56
+  16.86.56.56.56   86.56.56.56.16   56.56.56.16.36   56.56.16.36.76
+  56.16.36.76.96   16.36.76.96.96   36.76.96.96.26   76.96.96.26.26
+  96.96.26.26.36   96.26.26.36.66   26.26.36.66.36   26.36.66.36.36
+  36.66.36.36   66.36.36   36.36   36   97.27.97.67.77   27.97.67.77.47
+  97.67.77.47.7   67.77.47.7.47   77.47.7.47.87   47.7.47.87.37
+  7.47.87.37.87   47.87.37.87.77   87.37.87.77.7   37.87.77.7.57
+  87.77.7.57.47   77.7.57.47.47   7.57.47.47.37   57.47.47.37.27
+  47.47.37.27.17   47.37.27.17.7   37.27.17.7   27.17.7   17.7   7
+  38.68.78.8.28   68.78.8.28.98   78.8.28.98.78   8.28.98.78.58
+  28.98.78.58.98   98.78.58.98.8   78.58.98.8.88   58.98.8.88.8
+  98.8.88.8.58   8.88.8.58.58   88.8.58.58.58   8.58.58.58.38   58.58.58.38
+  58.58.38   58.38   38   89.59.39.99.29   59.39.99.29.59   39.99.29.59.89
+  99.29.59.89.89   29.59.89.89.29   59.89.89.29.9   89.89.29.9.79
+  89.29.9.79.49   29.9.79.49.59   9.79.49.59.29   79.49.59.29.59
+  49.59.29.59.19   59.29.59.19.39   29.59.19.39.9   59.19.39.9.9
+  19.39.9.9.99   39.9.9.99.69   9.9.99.69.39   9.99.69.39   99.69.39   69.39
+  39}
+
+do_execsql_test 1.12.14.3 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( ORDER BY b,a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2
+} {1.1.2.2.3   1.2.2.3.3   2.2.3.3.4   2.3.3.4.5   3.3.4.5.6   3.4.5.6.7
+  4.5.6.7.7   5.6.7.7.7   6.7.7.7.8   7.7.7.8.8   7.7.8.8.8   7.8.8.8.9
+  8.8.8.9.9   8.8.9.9.9   8.9.9.9.10   9.9.9.10.11   9.9.10.11.11
+  9.10.11.11.12   10.11.11.12.12   11.11.12.12.12   11.12.12.12.13
+  12.12.12.13.13   12.12.13.13.14   12.13.13.14.15   13.13.14.15.15
+  13.14.15.15.15   14.15.15.15.16   15.15.15.16.16   15.15.16.16.16
+  15.16.16.16.17   16.16.16.17.19   16.16.17.19.20   16.17.19.20.21
+  17.19.20.21.21   19.20.21.21.22   20.21.21.22.22   21.21.22.22.23
+  21.22.22.23.23   22.22.23.23.24   22.23.23.24.25   23.23.24.25.26
+  23.24.25.26.26   24.25.26.26.27   25.26.26.27.27   26.26.27.27.28
+  26.27.27.28.29   27.27.28.29.29   27.28.29.29.29   28.29.29.29.30
+  29.29.29.30.30   29.29.30.30.30   29.30.30.30.31   30.30.30.31.31
+  30.30.31.31.32   30.31.31.32.33   31.31.32.33.33   31.32.33.33.33
+  32.33.33.33.33   33.33.33.33.34   33.33.33.34.34   33.33.34.34.34
+  33.34.34.34.34   34.34.34.34.35   34.34.34.35.35   34.34.35.35.36
+  34.35.35.36.36   35.35.36.36.36   35.36.36.36.36   36.36.36.36.37
+  36.36.36.37.37   36.36.37.37.38   36.37.37.38.38   37.37.38.38.39
+  37.38.38.39.39   38.38.39.39.39   38.39.39.39.40   39.39.39.40.41
+  39.39.40.41.41   39.40.41.41.42   40.41.41.42.43   41.41.42.43.43
+  41.42.43.43.44   42.43.43.44.44   43.43.44.44.46   43.44.44.46.46
+  44.44.46.46.47   44.46.46.47.47   46.46.47.47.47   46.47.47.47.47
+  47.47.47.47.49   47.47.47.49.50   47.47.49.50.51   47.49.50.51.52
+  49.50.51.52.53   50.51.52.53.54   51.52.53.54.55   52.53.54.55.55
+  53.54.55.55.56   54.55.55.56.56   55.55.56.56.56   55.56.56.56.57
+  56.56.56.57.58   56.56.57.58.58   56.57.58.58.58   57.58.58.58.58
+  58.58.58.58.59   58.58.58.59.59   58.58.59.59.59   58.59.59.59.59
+  59.59.59.59.60   59.59.59.60.61   59.59.60.61.61   59.60.61.61.62
+  60.61.61.62.62   61.61.62.62.63   61.62.62.63.64   62.62.63.64.65
+  62.63.64.65.65   63.64.65.65.65   64.65.65.65.66   65.65.65.66.67
+  65.65.66.67.68   65.66.67.68.69   66.67.68.69.70   67.68.69.70.72
+  68.69.70.72.72   69.70.72.72.72   70.72.72.72.73   72.72.72.73.73
+  72.72.73.73.73   72.73.73.73.74   73.73.73.74.74   73.73.74.74.74
+  73.74.74.74.75   74.74.74.75.75   74.74.75.75.75   74.75.75.75.76
+  75.75.75.76.77   75.75.76.77.77   75.76.77.77.78   76.77.77.78.78
+  77.77.78.78.79   77.78.78.79.80   78.78.79.80.80   78.79.80.80.81
+  79.80.80.81.81   80.80.81.81.81   80.81.81.81.82   81.81.81.82.83
+  81.81.82.83.84   81.82.83.84.84   82.83.84.84.84   83.84.84.84.84
+  84.84.84.84.85   84.84.84.85.85   84.84.85.85.85   84.85.85.85.86
+  85.85.85.86.87   85.85.86.87.87   85.86.87.87.88   86.87.87.88.89
+  87.87.88.89.89   87.88.89.89.89   88.89.89.89.90   89.89.89.90.90
+  89.89.90.90.90   89.90.90.90.91   90.90.90.91.91   90.90.91.91.91
+  90.91.91.91.91   91.91.91.91.91   91.91.91.91.93   91.91.91.93.93
+  91.91.93.93.93   91.93.93.93.94   93.93.93.94.95   93.93.94.95.95
+  93.94.95.95.95   94.95.95.95.96   95.95.95.96.96   95.95.96.96.96
+  95.96.96.96.97   96.96.96.97.97   96.96.97.97.98   96.97.97.98.98
+  97.97.98.98.99   97.98.98.99.99   98.98.99.99   98.99.99   99.99   99}
+
+do_execsql_test 1.12.14.4 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2
+} {10.20.30.30.30   20.30.30.30.40   30.30.30.40.50   30.30.40.50.60
+  30.40.50.60.70   40.50.60.70.80   50.60.70.80.80   60.70.80.80.90
+  70.80.80.90.90   80.80.90.90.90   80.90.90.90   90.90.90   90.90   90
+  1.1.11.11.21   1.11.11.21.21   11.11.21.21.31   11.21.21.31.31
+  21.21.31.31.41   21.31.31.41.41   31.31.41.41.51   31.41.41.51.61
+  41.41.51.61.61   41.51.61.61.81   51.61.61.81.81   61.61.81.81.81
+  61.81.81.81.91   81.81.81.91.91   81.81.91.91.91   81.91.91.91.91
+  91.91.91.91.91   91.91.91.91   91.91.91   91.91   91   2.2.12.12.12
+  2.12.12.12.22   12.12.12.22.22   12.12.22.22.32   12.22.22.32.42
+  22.22.32.42.52   22.32.42.52.62   32.42.52.62.62   42.52.62.62.72
+  52.62.62.72.72   62.62.72.72.72   62.72.72.72.82   72.72.72.82   72.72.82
+  72.82   82   3.3.13.13.23   3.13.13.23.23   13.13.23.23.33   13.23.23.33.33
+  23.23.33.33.33   23.33.33.33.33   33.33.33.33.43   33.33.33.43.43
+  33.33.43.43.53   33.43.43.53.63   43.43.53.63.73   43.53.63.73.73
+  53.63.73.73.73   63.73.73.73.83   73.73.73.83.93   73.73.83.93.93
+  73.83.93.93.93   83.93.93.93   93.93.93   93.93   93   4.14.24.34.34
+  14.24.34.34.34   24.34.34.34.34   34.34.34.34.44   34.34.34.44.44
+  34.34.44.44.54   34.44.44.54.64   44.44.54.64.74   44.54.64.74.74
+  54.64.74.74.74   64.74.74.74.84   74.74.74.84.84   74.74.84.84.84
+  74.84.84.84.84   84.84.84.84.94   84.84.84.94   84.84.94   84.94   94
+  5.15.15.15.25   15.15.15.25.35   15.15.25.35.35   15.25.35.35.55
+  25.35.35.55.55   35.35.55.55.65   35.55.55.65.65   55.55.65.65.65
+  55.65.65.65.75   65.65.65.75.75   65.65.75.75.75   65.75.75.75.85
+  75.75.75.85.85   75.75.85.85.85   75.85.85.85.95   85.85.85.95.95
+  85.85.95.95.95   85.95.95.95   95.95.95   95.95   95   6.16.16.16.26
+  16.16.16.26.26   16.16.26.26.36   16.26.26.36.36   26.26.36.36.36
+  26.36.36.36.36   36.36.36.36.46   36.36.36.46.46   36.36.46.46.56
+  36.46.46.56.56   46.46.56.56.56   46.56.56.56.66   56.56.56.66.76
+  56.56.66.76.86   56.66.76.86.96   66.76.86.96.96   76.86.96.96.96
+  86.96.96.96   96.96.96   96.96   96   7.7.7.17.27   7.7.17.27.27
+  7.17.27.27.37   17.27.27.37.37   27.27.37.37.47   27.37.37.47.47
+  37.37.47.47.47   37.47.47.47.47   47.47.47.47.57   47.47.47.57.67
+  47.47.57.67.77   47.57.67.77.77   57.67.77.77.87   67.77.77.87.87
+  77.77.87.87.97   77.87.87.97.97   87.87.97.97   87.97.97   97.97   97
+  8.8.8.28.38   8.8.28.38.38   8.28.38.38.58   28.38.38.58.58
+  38.38.58.58.58   38.58.58.58.58   58.58.58.58.68   58.58.58.68.78
+  58.58.68.78.78   58.68.78.78.88   68.78.78.88.98   78.78.88.98.98
+  78.88.98.98   88.98.98   98.98   98   9.9.9.19.29   9.9.19.29.29
+  9.19.29.29.29   19.29.29.29.39   29.29.29.39.39   29.29.39.39.39
+  29.39.39.39.49   39.39.39.49.59   39.39.49.59.59   39.49.59.59.59
+  49.59.59.59.59   59.59.59.59.69   59.59.59.69.79   59.59.69.79.89
+  59.69.79.89.89   69.79.89.89.89   79.89.89.89.99   89.89.89.99.99
+  89.89.99.99   89.99.99   99.99   99}
+
+do_execsql_test 1.12.14.5 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( ORDER BY b%10,a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING ) FROM t2
+} {90.40.30.80.20   40.30.80.20.90   30.80.20.90.60   80.20.90.60.70
+  20.90.60.70.80   90.60.70.80.90   60.70.80.90.30   70.80.90.30.50
+  80.90.30.50.10   90.30.50.10.30   30.50.10.30.81   50.10.30.81.91
+  10.30.81.91.61   30.81.91.61.91   81.91.61.91.91   91.61.91.91.1
+  61.91.91.1.81   91.91.1.81.41   91.1.81.41.61   1.81.41.61.1
+  81.41.61.1.21   41.61.1.21.11   61.1.21.11.51   1.21.11.51.41
+  21.11.51.41.31   11.51.41.31.31   51.41.31.31.11   41.31.31.11.81
+  31.31.11.81.91   31.11.81.91.91   11.81.91.91.21   81.91.91.21.62
+  91.91.21.62.12   91.21.62.12.32   21.62.12.32.22   62.12.32.22.42
+  12.32.22.42.2   32.22.42.2.72   22.42.2.72.12   42.2.72.12.22
+  2.72.12.22.2   72.12.22.2.72   12.22.2.72.72   22.2.72.72.12
+  2.72.72.12.62   72.72.12.62.52   72.12.62.52.82   12.62.52.82.93
+  62.52.82.93.23   52.82.93.23.93   82.93.23.93.43   93.23.93.43.3
+  23.93.43.3.43   93.43.3.43.33   43.3.43.33.53   3.43.33.53.63
+  43.33.53.63.73   33.53.63.73.13   53.63.73.13.73   63.73.13.73.73
+  73.13.73.73.33   13.73.73.33.93   73.73.33.93.23   73.33.93.23.13
+  33.93.23.13.33   93.23.13.33.3   23.13.33.3.33   13.33.3.33.83
+  33.3.33.83.54   3.33.83.54.84   33.83.54.84.74   83.54.84.74.24
+  54.84.74.24.4   84.74.24.4.94   74.24.4.94.84   24.4.94.84.74
+  4.94.84.74.34   94.84.74.34.34   84.74.34.34.44   74.34.34.44.74
+  34.34.44.74.64   34.44.74.64.14   44.74.64.14.34   74.64.14.34.84
+  64.14.34.84.84   14.34.84.84.44   34.84.84.44.34   84.84.44.34.65
+  84.44.34.65.35   44.34.65.35.85   34.65.35.85.85   65.35.85.85.55
+  35.85.85.55.15   85.85.55.15.25   85.55.15.25.75   55.15.25.75.95
+  15.25.75.95.65   25.75.95.65.65   75.95.65.65.35   95.65.65.35.5
+  65.65.35.5.15   65.35.5.15.95   35.5.15.95.55   5.15.95.55.75
+  15.95.55.75.85   95.55.75.85.75   55.75.85.75.15   75.85.75.15.95
+  85.75.15.95.96   75.15.95.96.46   15.95.96.46.6   95.96.46.6.46
+  96.46.6.46.16   46.6.46.16.16   6.46.16.16.86   46.16.16.86.56
+  16.16.86.56.56   16.86.56.56.56   86.56.56.56.16   56.56.56.16.36
+  56.56.16.36.76   56.16.36.76.96   16.36.76.96.96   36.76.96.96.26
+  76.96.96.26.26   96.96.26.26.36   96.26.26.36.66   26.26.36.66.36
+  26.36.66.36.36   36.66.36.36.97   66.36.36.97.27   36.36.97.27.97
+  36.97.27.97.67   97.27.97.67.77   27.97.67.77.47   97.67.77.47.7
+  67.77.47.7.47   77.47.7.47.87   47.7.47.87.37   7.47.87.37.87
+  47.87.37.87.77   87.37.87.77.7   37.87.77.7.57   87.77.7.57.47
+  77.7.57.47.47   7.57.47.47.37   57.47.47.37.27   47.47.37.27.17
+  47.37.27.17.7   37.27.17.7.38   27.17.7.38.68   17.7.38.68.78
+  7.38.68.78.8   38.68.78.8.28   68.78.8.28.98   78.8.28.98.78
+  8.28.98.78.58   28.98.78.58.98   98.78.58.98.8   78.58.98.8.88
+  58.98.8.88.8   98.8.88.8.58   8.88.8.58.58   88.8.58.58.58   8.58.58.58.38
+  58.58.58.38.89   58.58.38.89.59   58.38.89.59.39   38.89.59.39.99
+  89.59.39.99.29   59.39.99.29.59   39.99.29.59.89   99.29.59.89.89
+  29.59.89.89.29   59.89.89.29.9   89.89.29.9.79   89.29.9.79.49
+  29.9.79.49.59   9.79.49.59.29   79.49.59.29.59   49.59.29.59.19
+  59.29.59.19.39   29.59.19.39.9   59.19.39.9.9   19.39.9.9.99   39.9.9.99.69
+  9.9.99.69.39   9.99.69.39   99.69.39   69.39   39}
+
+do_execsql_test 1.12.14.6 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING) FROM t2
+} {96   38   68   62   46   6   46   78   54   8   84   16   16   86   74   24
+  12   32   56   22   90   28   56   40   56   16   36   98   76   4   94
+  42   30   78   2   80   84   72   58   96   98   74   12   8   20   22   88
+  34   8   34   90   96   60   44   2   74   70   26   26   80   90   36   58
+  72   72   66   64   12   14   62   36   34   36   58   52   30   50   84
+  10   84   44   58   30   38   34   82   89   81   59   39   91   99   97
+  27   97   67   29   93   77   23   93   65   35   47   7   61   91   85
+  85   43   59   3   91   55   15   89   25   47   1   43   75   89   81   33
+  29   53   63   87   37   41   9   61   73   95   65   13   1   21   65   35
+  5   73   11   51   87   41   31   31   15   95   73   79   11   49   59
+  55   75   77   7   85   57   29   59   19   39   47   47   9   33   93   75
+  81   9   23   37   13   91   91   33   15   99   3   95   69   33   21   39
+  83   27   17   7}
+
+do_execsql_test 1.12.14.7 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (win1 ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING) 
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a)
+    ORDER BY 1
+} {1   1   10   11   11   12   12   12   13   13   14   15   15   15   16   16
+  16   17   19   2   2   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   3   3   30   30   30   31   31   32   33   33
+  33   33   34   34   34   34   35   35   36   36   36   36   37   37   38
+  38   39   39   39   4   40   41   41   42   43   43   44   44   46   46
+  47   47   47   47   49   5   50   51   52   53   54   55   55   56   56
+  56   57   58   58   58   58   59   59   59   59   6   60   61   61   62
+  62   63   64   65   65   65   66   67   68   69   7   7   7   70   72   72
+  72   73   73   73   74   74   74   75   75   75   76   77   77   78   78
+  79   8   8   8   80   80   81   81   81   82   83   84   84   84   84   85
+  85   85   86   87   87   88   89   89   89   9   9   9   90   90   90   91
+  91   91   91   91   93   93   93   94   95   95   95   96   96   96   97
+  97   98   98   99   99}
+
+do_execsql_test 1.12.14.8 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (win1 ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING) 
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a ORDER BY b%10)
+    ORDER BY 1
+} {1   1   10   11   11   12   12   12   13   13   14   15   15   15   16   16
+  16   17   19   2   2   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   3   3   30   30   30   31   31   32   33   33
+  33   33   34   34   34   34   35   35   36   36   36   36   37   37   38
+  38   39   39   39   4   40   41   41   42   43   43   44   44   46   46
+  47   47   47   47   49   5   50   51   52   53   54   55   55   56   56
+  56   57   58   58   58   58   59   59   59   59   6   60   61   61   62
+  62   63   64   65   65   65   66   67   68   69   7   7   7   70   72   72
+  72   73   73   73   74   74   74   75   75   75   76   77   77   78   78
+  79   8   8   8   80   80   81   81   81   82   83   84   84   84   84   85
+  85   85   86   87   87   88   89   89   89   9   9   9   90   90   90   91
+  91   91   91   91   93   93   93   94   95   95   95   96   96   96   97
+  97   98   98   99   99}
+
+do_execsql_test 1.12.14.9 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER win2
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a ORDER BY b%10),
+           win2 AS (win1 ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING)
+    ORDER BY 1
+} {1   1   10   11   11   12   12   12   13   13   14   15   15   15   16   16
+  16   17   19   2   2   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   3   3   30   30   30   31   31   32   33   33
+  33   33   34   34   34   34   35   35   36   36   36   36   37   37   38
+  38   39   39   39   4   40   41   41   42   43   43   44   44   46   46
+  47   47   47   47   49   5   50   51   52   53   54   55   55   56   56
+  56   57   58   58   58   58   59   59   59   59   6   60   61   61   62
+  62   63   64   65   65   65   66   67   68   69   7   7   7   70   72   72
+  72   73   73   73   74   74   74   75   75   75   76   77   77   78   78
+  79   8   8   8   80   80   81   81   81   82   83   84   84   84   84   85
+  85   85   86   87   87   88   89   89   89   9   9   9   90   90   90   91
+  91   91   91   91   93   93   93   94   95   95   95   96   96   96   97
+  97   98   98   99   99}
+
+do_execsql_test 1.12.15.1 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE a%2=0) OVER win FROM t2
+    WINDOW win AS (ORDER BY a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING)
+} {5 89.96.38   5 96.38   5 96.38.39   5 38.39   5 38.39.91   5 39.91
+  5 39.91.6   5 91.6   5 91.6.97   5 6.97   5 6.97.46   5 97.46   5 97.46.54
+  5 46.54   5 46.54.8   5 54.8   5 54.8.29   5 8.29   5 8.29.84   5 29.84
+  5 29.84.23   5 84.23   5 84.23.16   5 23.16   5 23.16.65   5 16.65
+  5 16.65.47   5 65.47   5 65.47.86   5 47.86   5 47.86.61   5 86.61
+  5 86.61.85   5 61.85   5 61.85.85   5 85.85   5 85.85.59   5 85.59
+  5 85.59.32   5 59.32   5 59.32.3   5 32.3   5 32.3.22   5 3.22   5 3.22.55
+  5 22.55   5 22.55.28   5 55.28   5 55.28.25   5 28.25   5 28.25.1   5 25.1
+  5 25.1.40   5 1.40   5 1.40.56   5 40.56   5 40.56.75   5 56.75
+  5 56.75.89   5 75.89   5 75.89.76   5 89.76   5 89.76.4   5 76.4
+  5 76.4.42   5 4.42   5 4.42.78   5 42.78   5 42.78.29   5 78.29
+  5 78.29.63   5 29.63   5 29.63.87   5 63.87   5 63.87.80   5 87.80
+  5 87.80.72   5 80.72   5 80.72.9   5 72.9   5 72.9.73   5 9.73   5 9.73.65
+  5 73.65   5 73.65.58   5 65.58   5 65.58.98   5 58.98   5 58.98.21
+  5 98.21   5 98.21.65   5 21.65   5 21.65.5   5 65.5   5 65.5.11   5 5.11
+  5 5.11.87   5 11.87   5 11.87.12   5 87.12   5 87.12.20   5 12.20
+  5 12.20.31   5 20.31   5 20.31.95   5 31.95   5 31.95.73   5 95.73
+  5 95.73.88   5 73.88   5 73.88.8   5 88.8   5 88.8.49   5 8.49   5 8.49.90
+  5 49.90   5 49.90.96   5 90.96   5 90.96.55   5 96.55   5 96.55.77
+  5 55.77   5 55.77.2   5 77.2   5 77.2.85   5 2.85   5 2.85.74   5 85.74
+  5 85.74.70   5 74.70   5 74.70.19   5 70.19   5 70.19.26   5 19.26
+  5 19.26.47   5 26.47   5 26.47.90   5 47.90   5 47.90.58   5 90.58
+  5 90.58.9   5 58.9   5 58.9.72   5 9.72   5 9.72.33   5 72.33   5 72.33.75
+  5 33.75   5 33.75.81   5 75.81   5 75.81.23   5 81.23   5 81.23.13
+  5 23.13   5 23.13.14   5 13.14   5 13.14.91   5 14.91   5 14.91.91
+  5 91.91   5 91.91.15   5 91.15   5 91.15.36   5 15.36   5 15.36.3   5 36.3
+  5 36.3.69   5 3.69   5 3.69.52   5 69.52   5 69.52.50   5 52.50
+  5 52.50.10   5 50.10   5 50.10.33   5 10.33   5 10.33.39   5 33.39
+  5 33.39.58   5 39.58   5 39.58.38   5 58.38   5 58.38.83   5 38.83
+  5 38.83.82   5 83.82   5 83.82.7   4 82.7   3 82.7   2 7   1 7}
+
+do_execsql_test 1.12.15.2 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE 0=1) OVER win FROM t2
+    WINDOW win AS (ORDER BY a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING)
+} {5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  4 {}   3 {}   2 {}   1 {}}
+
+do_execsql_test 1.12.15.3 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE 1=0) OVER win FROM t2
+    WINDOW win AS (PARTITION BY (a%10) ORDER BY a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING)
+} {5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   4 {}   3 {}   2 {}   1 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   4 {}   3 {}   2 {}   1 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   4 {}
+  3 {}   2 {}   1 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   4 {}   3 {}   2 {}   1 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   4 {}   3 {}   2 {}   1 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   4 {}   3 {}   2 {}   1 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   4 {}   3 {}
+  2 {}   1 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   4 {}   3 {}   2 {}   1 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   4 {}   3 {}   2 {}   1 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  4 {}   3 {}   2 {}   1 {}}
+
+do_execsql_test 1.12.15.4 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE a%2=0) OVER win FROM t2
+    WINDOW win AS (PARTITION BY (a%10) ORDER BY a ROWS BETWEEN CURRENT ROW         AND 4 FOLLOWING)
+} {5 89.6.29.47.59   5 6.29.47.59.28   5 29.47.59.28.75   5 47.59.28.75.78
+  5 59.28.75.78.72   5 28.75.78.72.98   5 75.78.72.98.87   5 78.72.98.87.73
+  5 72.98.87.73.96   5 98.87.73.96.74   5 87.73.96.74.90   5 73.96.74.90.75
+  5 96.74.90.75.91   5 74.90.75.91.69   5 90.75.91.69.39   5 75.91.69.39.7
+  4 91.69.39.7   3 69.39.7   2 39.7   1 7   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   4 {}
+  3 {}   2 {}   1 {}   5 96.97.84.86.32   5 97.84.86.32.25   5 84.86.32.25.89
+  5 86.32.25.89.29   5 32.25.89.29.9   5 25.89.29.9.21   5 89.29.9.21.12
+  5 29.9.21.12.88   5 9.21.12.88.55   5 21.12.88.55.70   5 12.88.55.70.58
+  5 88.55.70.58.81   5 55.70.58.81.91   5 70.58.81.91.52   5 58.81.91.52.58
+  4 81.91.52.58   3 91.52.58   2 52.58   1 58   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  4 {}   3 {}   2 {}   1 {}   5 38.46.23.61.3   5 46.23.61.3.1
+  5 23.61.3.1.76   5 61.3.1.76.63   5 3.1.76.63.73   5 1.76.63.73.65
+  5 76.63.73.65.20   5 63.73.65.20.8   5 73.65.20.8.77   5 65.20.8.77.19
+  5 20.8.77.19.9   5 8.77.19.9.23   5 77.19.9.23.15   5 19.9.23.15.50
+  5 9.23.15.50.38   4 23.15.50.38   3 15.50.38   2 50.38   1 38   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   4 {}   3 {}   2 {}   1 {}   5 39.54.16.85.22
+  5 54.16.85.22.40   5 16.85.22.40.4   5 85.22.40.4.87   5 22.40.4.87.65
+  5 40.4.87.65.5   5 4.87.65.5.31   5 87.65.5.31.49   5 65.5.31.49.2
+  5 5.31.49.2.26   5 31.49.2.26.72   5 49.2.26.72.13   5 2.26.72.13.36
+  5 26.72.13.36.10   5 72.13.36.10.83   4 13.36.10.83   3 36.10.83   2 10.83
+  1 83   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   4 {}   3 {}   2 {}   1 {}
+  5 91.8.65.85.55   5 8.65.85.55.56   5 65.85.55.56.42   5 85.55.56.42.80
+  5 55.56.42.80.58   5 56.42.80.58.11   5 42.80.58.11.95   5 80.58.11.95.90
+  5 58.11.95.90.85   5 11.95.90.85.47   5 95.90.85.47.33   5 90.85.47.33.14
+  5 85.47.33.14.3   5 47.33.14.3.33   5 33.14.3.33.82   4 14.3.33.82
+  3 3.33.82   2 33.82   1 82   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}
+  5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   5 {}   4 {}   3 {}   2 {}
+  1 {}}
+
+do_execsql_test 1.13.2.1 {
+  SELECT max(b) OVER ( ORDER BY a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2
+} {96   68   68   68   91   91   91   99   99   99   97   78   78   97   97
+  97   67   93   93   93   84   77   23   93   93   93   65   47   86   86
+  86   91   91   91   85   85   85   59   59   56   56   91   91   91   90
+  90   55   89   89   89   47   56   56   56   56   56   75   75   89   98
+  98   98   81   94   94   94   78   78   78   53   63   63   87   87   87
+  84   84   84   72   61   73   95   95   95   65   96   98   98   98   74
+  74   74   65   73   73   73   87   87   87   41   20   31   31   31   95
+  95   95   79   88   88   88   34   49   49   90   90   96   96   96   75
+  77   77   77   44   85   85   85   74   74   70   70   59   39   39   47
+  80   90   90   90   58   58   72   72   72   72   93   93   93   81   81
+  81   37   37   37   14   62   91   91   91   91   91   34   36   99   99
+  99   95   95   69   58   52   84   84   84   84   84   39   44   58   58
+  58   38   83   83   83   82   82   17   7   {}   {}}
+
+do_execsql_test 1.13.2.2 {
+  SELECT min(b) OVER ( ORDER BY a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2
+} {38   38   38   39   39   46   6   6   6   27   27   27   46   54   8   8
+  8   29   29   77   23   16   16   16   16   35   35   7   7   7   61   61
+  61   24   24   24   43   12   12   12   3   3   3   22   22   15   15   15
+  25   25   1   1   1   40   40   16   16   16   36   36   76   76   4   4
+  4   30   30   30   29   29   29   2   2   2   37   37   72   41   9   9   9
+  61   65   13   13   13   58   1   1   1   21   35   5   5   5   11   11
+  41   12   8   8   8   20   15   15   15   22   22   73   34   8   8   8
+  11   34   34   59   59   55   55   55   44   2   2   2   7   57   29   29
+  29   19   19   19   26   26   26   47   36   36   36   9   9   9   66   33
+  33   33   64   64   9   9   9   13   12   12   12   14   36   36   33   15
+  15   15   34   3   3   3   58   52   30   30   30   10   10   10   21   21
+  21   39   30   30   30   34   27   27   17   7   7   7   {}   {}}
+
+do_execsql_test 1.13.3.1 {
+  SELECT row_number() OVER ( ORDER BY a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.13.3.2 {
+  SELECT row_number() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.13.3.3 {
+  SELECT row_number() OVER ( ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.13.4.1 {
+  SELECT dense_rank() OVER ( ORDER BY a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.13.4.2 {
+  SELECT dense_rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.13.4.3 {
+  SELECT dense_rank() OVER ( ORDER BY b ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2
+} {1   1   2   2   3   3   4   5   6   7   7   7   8   8   8   9   9   9   10
+  11   11   12   12   12   13   13   14   15   15   15   16   16   16   17
+  18   19   20   20   21   21   22   22   23   24   25   25   26   26   27
+  28   28   28   29   29   29   30   30   31   32   32   32   32   33   33
+  33   33   34   34   35   35   35   35   36   36   37   37   38   38   38
+  39   40   40   41   42   42   43   43   44   44   45   45   45   45   46
+  47   48   49   50   51   52   52   53   53   53   54   55   55   55   55
+  56   56   56   56   57   58   58   59   59   60   61   62   62   62   63
+  64   65   66   67   68   68   68   69   69   69   70   70   70   71   71
+  71   72   73   73   74   74   75   76   76   77   77   77   78   79   80
+  80   80   80   81   81   81   82   83   83   84   85   85   85   86   86
+  86   87   87   87   87   87   88   88   88   89   90   90   90   91   91
+  91   92   92   93   93   94   94}
+
+do_execsql_test 1.13.4.4 {
+  SELECT dense_rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2
+} {1   2   3   3   3   4   5   6   7   8   8   9   9   9   1   1   2   2   3
+  3   4   4   5   5   6   7   7   8   8   8   9   9   9   9   9   1   1   2
+  2   2   3   3   4   5   6   7   7   8   8   8   9   1   1   2   2   3   3
+  4   4   4   4   5   5   6   7   8   8   8   9   10   10   10   1   2   3
+  4   4   4   4   5   5   6   7   8   8   8   9   9   9   9   10   1   2   2
+  2   3   4   4   5   5   6   6   6   7   7   7   8   8   8   9   9   9   1
+  2   2   2   3   3   4   4   4   4   5   5   6   6   6   7   8   9   10   10
+  10   1   1   1   2   3   3   4   4   5   5   5   5   6   7   8   8   9   9
+  10   10   1   1   1   2   3   3   4   4   4   4   5   6   6   7   8   8   1
+  1   1   2   3   3   3   4   4   4   5   6   6   6   6   7   8   9   9   9
+  10   10}
+
+do_execsql_test 1.13.4.5 {
+  SELECT dense_rank() OVER ( ORDER BY b%10 ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   4   4   4   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5   5   5   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   6   6   6   6
+  6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   7   7
+  7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7
+  8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8
+  8   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   10   10
+  10   10   10   10   10   10   10   10   10   10   10   10   10   10   10
+  10   10   10   10   10}
+
+do_execsql_test 1.13.4.6 {
+  SELECT dense_rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   3   3   3   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   4   4   4   4   4   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   5   5   5   5   5   5
+  5   5   5   5   5   5   5   5   5   5   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5
+  5}
+
+do_execsql_test 1.13.5.1 {
+  SELECT rank() OVER ( ORDER BY a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.13.5.2 {
+  SELECT rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.13.5.3 {
+  SELECT rank() OVER ( ORDER BY b ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2
+} {1   1   3   3   5   5   7   8   9   10   10   10   13   13   13   16   16
+  16   19   20   20   22   22   22   25   25   27   28   28   28   31   31
+  31   34   35   36   37   37   39   39   41   41   43   44   45   45   47
+  47   49   50   50   50   53   53   53   56   56   58   59   59   59   59
+  63   63   63   63   67   67   69   69   69   69   73   73   75   75   77
+  77   77   80   81   81   83   84   84   86   86   88   88   90   90   90
+  90   94   95   96   97   98   99   100   100   102   102   102   105   106
+  106   106   106   110   110   110   110   114   115   115   117   117   119
+  120   121   121   121   124   125   126   127   128   129   129   129   132
+  132   132   135   135   135   138   138   138   141   142   142   144   144
+  146   147   147   149   149   149   152   153   154   154   154   154   158
+  158   158   161   162   162   164   165   165   165   168   168   168   171
+  171   171   171   171   176   176   176   179   180   180   180   183   183
+  183   186   186   188   188   190   190}
+
+do_execsql_test 1.13.5.4 {
+  SELECT rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2
+} {1   2   3   3   3   6   7   8   9   10   10   12   12   12   1   1   3   3
+  5   5   7   7   9   9   11   12   12   14   14   14   17   17   17   17
+  17   1   1   3   3   3   6   6   8   9   10   11   11   13   13   13   16
+  1   1   3   3   5   5   7   7   7   7   11   11   13   14   15   15   15
+  18   19   19   19   1   2   3   4   4   4   4   8   8   10   11   12   12
+  12   15   15   15   15   19   1   2   2   2   5   6   6   8   8   10   10
+  10   13   13   13   16   16   16   19   19   19   1   2   2   2   5   5   7
+  7   7   7   11   11   13   13   13   16   17   18   19   19   19   1   1
+  1   4   5   5   7   7   9   9   9   9   13   14   15   15   17   17   19
+  19   1   1   1   4   5   5   7   7   7   7   11   12   12   14   15   15
+  1   1   1   4   5   5   5   8   8   8   11   12   12   12   12   16   17
+  18   18   18   21   21}
+
+do_execsql_test 1.13.5.5 {
+  SELECT rank() OVER ( ORDER BY b%10 ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   15   15   15   15
+  15   15   15   15   15   15   15   15   15   15   15   15   15   15   15
+  15   15   36   36   36   36   36   36   36   36   36   36   36   36   36
+  36   36   36   52   52   52   52   52   52   52   52   52   52   52   52
+  52   52   52   52   52   52   52   52   52   73   73   73   73   73   73
+  73   73   73   73   73   73   73   73   73   73   73   73   73   92   92
+  92   92   92   92   92   92   92   92   92   92   92   92   92   92   92
+  92   92   92   92   113   113   113   113   113   113   113   113   113
+  113   113   113   113   113   113   113   113   113   113   113   113   134
+  134   134   134   134   134   134   134   134   134   134   134   134   134
+  134   134   134   134   134   134   154   154   154   154   154   154   154
+  154   154   154   154   154   154   154   154   154   170   170   170   170
+  170   170   170   170   170   170   170   170   170   170   170   170   170
+  170   170   170   170   170}
+
+do_execsql_test 1.13.5.6 {
+  SELECT rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   15   15   15   15
+  15   15   15   15   15   15   15   15   15   15   15   15   31   31   31
+  31   31   31   31   31   31   31   31   31   31   31   31   31   31   31
+  31   50   50   50   50   50   50   50   50   50   50   50   50   50   50
+  50   50   50   50   50   50   50   71   71   71   71   71   71   71   71
+  71   71   71   71   71   71   71   71   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   22   22   22   22   22   22
+  22   22   22   22   22   22   22   22   22   22   22   22   22   22   22
+  43   43   43   43   43   43   43   43   43   43   43   43   43   43   43
+  43   43   43   43   43   43   64   64   64   64   64   64   64   64   64
+  64   64   64   64   64   64   64   64   64   64   64   84   84   84   84
+  84   84   84   84   84   84   84   84   84   84   84   84   84   84   84
+  84   84   84}
+
+do_execsql_test 1.13.6.1 {
+  SELECT 
+      row_number() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ),
+      rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ),
+      dense_rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING )
+    FROM t2
+} {1 1 1   2 1 1   3 1 1   4 1 1   5 1 1   6 1 1   7 1 1   8 1 1   9 1 1
+  10 1 1   11 1 1   12 1 1   13 1 1   14 1 1   15 15 2   16 15 2   17 15 2
+  18 15 2   19 15 2   20 15 2   21 15 2   22 15 2   23 15 2   24 15 2
+  25 15 2   26 15 2   27 15 2   28 15 2   29 15 2   30 15 2   31 31 3
+  32 31 3   33 31 3   34 31 3   35 31 3   36 31 3   37 31 3   38 31 3
+  39 31 3   40 31 3   41 31 3   42 31 3   43 31 3   44 31 3   45 31 3
+  46 31 3   47 31 3   48 31 3   49 31 3   50 50 4   51 50 4   52 50 4
+  53 50 4   54 50 4   55 50 4   56 50 4   57 50 4   58 50 4   59 50 4
+  60 50 4   61 50 4   62 50 4   63 50 4   64 50 4   65 50 4   66 50 4
+  67 50 4   68 50 4   69 50 4   70 50 4   71 71 5   72 71 5   73 71 5
+  74 71 5   75 71 5   76 71 5   77 71 5   78 71 5   79 71 5   80 71 5
+  81 71 5   82 71 5   83 71 5   84 71 5   85 71 5   86 71 5   1 1 1   2 1 1
+  3 1 1   4 1 1   5 1 1   6 1 1   7 1 1   8 1 1   9 1 1   10 1 1   11 1 1
+  12 1 1   13 1 1   14 1 1   15 1 1   16 1 1   17 1 1   18 1 1   19 1 1
+  20 1 1   21 1 1   22 22 2   23 22 2   24 22 2   25 22 2   26 22 2   27 22 2
+  28 22 2   29 22 2   30 22 2   31 22 2   32 22 2   33 22 2   34 22 2
+  35 22 2   36 22 2   37 22 2   38 22 2   39 22 2   40 22 2   41 22 2
+  42 22 2   43 43 3   44 43 3   45 43 3   46 43 3   47 43 3   48 43 3
+  49 43 3   50 43 3   51 43 3   52 43 3   53 43 3   54 43 3   55 43 3
+  56 43 3   57 43 3   58 43 3   59 43 3   60 43 3   61 43 3   62 43 3
+  63 43 3   64 64 4   65 64 4   66 64 4   67 64 4   68 64 4   69 64 4
+  70 64 4   71 64 4   72 64 4   73 64 4   74 64 4   75 64 4   76 64 4
+  77 64 4   78 64 4   79 64 4   80 64 4   81 64 4   82 64 4   83 64 4
+  84 84 5   85 84 5   86 84 5   87 84 5   88 84 5   89 84 5   90 84 5
+  91 84 5   92 84 5   93 84 5   94 84 5   95 84 5   96 84 5   97 84 5
+  98 84 5   99 84 5   100 84 5   101 84 5   102 84 5   103 84 5   104 84 5
+  105 84 5}
+
+
+do_test 1.13.7.1 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0053 0.0105 0.0158 0.0211 0.0263 0.0316 0.0368 0.0421 0.0474 0.0526 0.0579 0.0632 0.0684 0.0737 0.0789 0.0842 0.0895 0.0947 0.1000 0.1053 0.1105 0.1158 0.1211 0.1263 0.1316 0.1368 0.1421 0.1474 0.1526 0.1579 0.1632 0.1684 0.1737 0.1789 0.1842 0.1895 0.1947 0.2000 0.2053 0.2105 0.2158 0.2211 0.2263 0.2316 0.2368 0.2421 0.2474 0.2526 0.2579 0.2632 0.2684 0.2737 0.2789 0.2842 0.2895 0.2947 0.3000 0.3053 0.3105 0.3158 0.3211 0.3263 0.3316 0.3368 0.3421 0.3474 0.3526 0.3579 0.3632 0.3684 0.3737 0.3789 0.3842 0.3895 0.3947 0.4000 0.4053 0.4105 0.4158 0.4211 0.4263 0.4316 0.4368 0.4421 0.4474 0.4526 0.4579 0.4632 0.4684 0.4737 0.4789 0.4842 0.4895 0.4947 0.5000 0.5053 0.5105 0.5158 0.5211 0.5263 0.5316 0.5368 0.5421 0.5474 0.5526 0.5579 0.5632 0.5684 0.5737 0.5789 0.5842 0.5895 0.5947 0.6000 0.6053 0.6105 0.6158 0.6211 0.6263 0.6316 0.6368 0.6421 0.6474 0.6526 0.6579 0.6632 0.6684 0.6737 0.6789 0.6842 0.6895 0.6947 0.7000 0.7053 0.7105 0.7158 0.7211 0.7263 0.7316 0.7368 0.7421 0.7474 0.7526 0.7579 0.7632 0.7684 0.7737 0.7789 0.7842 0.7895 0.7947 0.8000 0.8053 0.8105 0.8158 0.8211 0.8263 0.8316 0.8368 0.8421 0.8474 0.8526 0.8579 0.8632 0.8684 0.8737 0.8789 0.8842 0.8895 0.8947 0.9000 0.9053 0.9105 0.9158 0.9211 0.9263 0.9316 0.9368 0.9421 0.9474 0.9526 0.9579 0.9632 0.9684 0.9737 0.9789 0.9842 0.9895 0.9947 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.13.7.2 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0769 0.1538 0.2308 0.3077 0.3846 0.4615 0.5385 0.6154 0.6923 0.7692 0.8462 0.9231 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0667 0.1333 0.2000 0.2667 0.3333 0.4000 0.4667 0.5333 0.6000 0.6667 0.7333 0.8000 0.8667 0.9333 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0556 0.1111 0.1667 0.2222 0.2778 0.3333 0.3889 0.4444 0.5000 0.5556 0.6111 0.6667 0.7222 0.7778 0.8333 0.8889 0.9444 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0526 0.1053 0.1579 0.2105 0.2632 0.3158 0.3684 0.4211 0.4737 0.5263 0.5789 0.6316 0.6842 0.7368 0.7895 0.8421 0.8947 0.9474 1.0000 0.0000 0.0667 0.1333 0.2000 0.2667 0.3333 0.4000 0.4667 0.5333 0.6000 0.6667 0.7333 0.8000 0.8667 0.9333 1.0000 0.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.13.7.3 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY b ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0105 0.0105 0.0211 0.0211 0.0316 0.0368 0.0421 0.0474 0.0474 0.0474 0.0632 0.0632 0.0632 0.0789 0.0789 0.0789 0.0947 0.1000 0.1000 0.1105 0.1105 0.1105 0.1263 0.1263 0.1368 0.1421 0.1421 0.1421 0.1579 0.1579 0.1579 0.1737 0.1789 0.1842 0.1895 0.1895 0.2000 0.2000 0.2105 0.2105 0.2211 0.2263 0.2316 0.2316 0.2421 0.2421 0.2526 0.2579 0.2579 0.2579 0.2737 0.2737 0.2737 0.2895 0.2895 0.3000 0.3053 0.3053 0.3053 0.3053 0.3263 0.3263 0.3263 0.3263 0.3474 0.3474 0.3579 0.3579 0.3579 0.3579 0.3789 0.3789 0.3895 0.3895 0.4000 0.4000 0.4000 0.4158 0.4211 0.4211 0.4316 0.4368 0.4368 0.4474 0.4474 0.4579 0.4579 0.4684 0.4684 0.4684 0.4684 0.4895 0.4947 0.5000 0.5053 0.5105 0.5158 0.5211 0.5211 0.5316 0.5316 0.5316 0.5474 0.5526 0.5526 0.5526 0.5526 0.5737 0.5737 0.5737 0.5737 0.5947 0.6000 0.6000 0.6105 0.6105 0.6211 0.6263 0.6316 0.6316 0.6316 0.6474 0.6526 0.6579 0.6632 0.6684 0.6737 0.6737 0.6737 0.6895 0.6895 0.6895 0.7053 0.7053 0.7053 0.7211 0.7211 0.7211 0.7368 0.7421 0.7421 0.7526 0.7526 0.7632 0.7684 0.7684 0.7789 0.7789 0.7789 0.7947 0.8000 0.8053 0.8053 0.8053 0.8053 0.8263 0.8263 0.8263 0.8421 0.8474 0.8474 0.8579 0.8632 0.8632 0.8632 0.8789 0.8789 0.8789 0.8947 0.8947 0.8947 0.8947 0.8947 0.9211 0.9211 0.9211 0.9368 0.9421 0.9421 0.9421 0.9579 0.9579 0.9579 0.9737 0.9737 0.9842 0.9842 0.9947 0.9947}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.13.7.4 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0769 0.1538 0.1538 0.1538 0.3846 0.4615 0.5385 0.6154 0.6923 0.6923 0.8462 0.8462 0.8462 0.0000 0.0000 0.1000 0.1000 0.2000 0.2000 0.3000 0.3000 0.4000 0.4000 0.5000 0.5500 0.5500 0.6500 0.6500 0.6500 0.8000 0.8000 0.8000 0.8000 0.8000 0.0000 0.0000 0.1333 0.1333 0.1333 0.3333 0.3333 0.4667 0.5333 0.6000 0.6667 0.6667 0.8000 0.8000 0.8000 1.0000 0.0000 0.0000 0.1000 0.1000 0.2000 0.2000 0.3000 0.3000 0.3000 0.3000 0.5000 0.5000 0.6000 0.6500 0.7000 0.7000 0.7000 0.8500 0.9000 0.9000 0.9000 0.0000 0.0556 0.1111 0.1667 0.1667 0.1667 0.1667 0.3889 0.3889 0.5000 0.5556 0.6111 0.6111 0.6111 0.7778 0.7778 0.7778 0.7778 1.0000 0.0000 0.0500 0.0500 0.0500 0.2000 0.2500 0.2500 0.3500 0.3500 0.4500 0.4500 0.4500 0.6000 0.6000 0.6000 0.7500 0.7500 0.7500 0.9000 0.9000 0.9000 0.0000 0.0500 0.0500 0.0500 0.2000 0.2000 0.3000 0.3000 0.3000 0.3000 0.5000 0.5000 0.6000 0.6000 0.6000 0.7500 0.8000 0.8500 0.9000 0.9000 0.9000 0.0000 0.0000 0.0000 0.1579 0.2105 0.2105 0.3158 0.3158 0.4211 0.4211 0.4211 0.4211 0.6316 0.6842 0.7368 0.7368 0.8421 0.8421 0.9474 0.9474 0.0000 0.0000 0.0000 0.2000 0.2667 0.2667 0.4000 0.4000 0.4000 0.4000 0.6667 0.7333 0.7333 0.8667 0.9333 0.9333 0.0000 0.0000 0.0000 0.1429 0.1905 0.1905 0.1905 0.3333 0.3333 0.3333 0.4762 0.5238 0.5238 0.5238 0.5238 0.7143 0.7619 0.8095 0.8095 0.8095 0.9524 0.9524}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.13.7.5 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY b%10 ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.13.7.6 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER (PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.13.8.1 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0052 0.0105 0.0157 0.0209 0.0262 0.0314 0.0366 0.0419 0.0471 0.0524 0.0576 0.0628 0.0681 0.0733 0.0785 0.0838 0.0890 0.0942 0.0995 0.1047 0.1099 0.1152 0.1204 0.1257 0.1309 0.1361 0.1414 0.1466 0.1518 0.1571 0.1623 0.1675 0.1728 0.1780 0.1832 0.1885 0.1937 0.1990 0.2042 0.2094 0.2147 0.2199 0.2251 0.2304 0.2356 0.2408 0.2461 0.2513 0.2565 0.2618 0.2670 0.2723 0.2775 0.2827 0.2880 0.2932 0.2984 0.3037 0.3089 0.3141 0.3194 0.3246 0.3298 0.3351 0.3403 0.3455 0.3508 0.3560 0.3613 0.3665 0.3717 0.3770 0.3822 0.3874 0.3927 0.3979 0.4031 0.4084 0.4136 0.4188 0.4241 0.4293 0.4346 0.4398 0.4450 0.4503 0.4555 0.4607 0.4660 0.4712 0.4764 0.4817 0.4869 0.4921 0.4974 0.5026 0.5079 0.5131 0.5183 0.5236 0.5288 0.5340 0.5393 0.5445 0.5497 0.5550 0.5602 0.5654 0.5707 0.5759 0.5812 0.5864 0.5916 0.5969 0.6021 0.6073 0.6126 0.6178 0.6230 0.6283 0.6335 0.6387 0.6440 0.6492 0.6545 0.6597 0.6649 0.6702 0.6754 0.6806 0.6859 0.6911 0.6963 0.7016 0.7068 0.7120 0.7173 0.7225 0.7277 0.7330 0.7382 0.7435 0.7487 0.7539 0.7592 0.7644 0.7696 0.7749 0.7801 0.7853 0.7906 0.7958 0.8010 0.8063 0.8115 0.8168 0.8220 0.8272 0.8325 0.8377 0.8429 0.8482 0.8534 0.8586 0.8639 0.8691 0.8743 0.8796 0.8848 0.8901 0.8953 0.9005 0.9058 0.9110 0.9162 0.9215 0.9267 0.9319 0.9372 0.9424 0.9476 0.9529 0.9581 0.9634 0.9686 0.9738 0.9791 0.9843 0.9895 0.9948 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.13.8.2 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0714 0.1429 0.2143 0.2857 0.3571 0.4286 0.5000 0.5714 0.6429 0.7143 0.7857 0.8571 0.9286 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0625 0.1250 0.1875 0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250 0.6875 0.7500 0.8125 0.8750 0.9375 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0526 0.1053 0.1579 0.2105 0.2632 0.3158 0.3684 0.4211 0.4737 0.5263 0.5789 0.6316 0.6842 0.7368 0.7895 0.8421 0.8947 0.9474 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0625 0.1250 0.1875 0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250 0.6875 0.7500 0.8125 0.8750 0.9375 1.0000 0.0455 0.0909 0.1364 0.1818 0.2273 0.2727 0.3182 0.3636 0.4091 0.4545 0.5000 0.5455 0.5909 0.6364 0.6818 0.7273 0.7727 0.8182 0.8636 0.9091 0.9545 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.13.8.3 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY b ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0105 0.0105 0.0209 0.0209 0.0314 0.0314 0.0366 0.0419 0.0471 0.0628 0.0628 0.0628 0.0785 0.0785 0.0785 0.0942 0.0942 0.0942 0.0995 0.1099 0.1099 0.1257 0.1257 0.1257 0.1361 0.1361 0.1414 0.1571 0.1571 0.1571 0.1728 0.1728 0.1728 0.1780 0.1832 0.1885 0.1990 0.1990 0.2094 0.2094 0.2199 0.2199 0.2251 0.2304 0.2408 0.2408 0.2513 0.2513 0.2565 0.2723 0.2723 0.2723 0.2880 0.2880 0.2880 0.2984 0.2984 0.3037 0.3246 0.3246 0.3246 0.3246 0.3455 0.3455 0.3455 0.3455 0.3560 0.3560 0.3770 0.3770 0.3770 0.3770 0.3874 0.3874 0.3979 0.3979 0.4136 0.4136 0.4136 0.4188 0.4293 0.4293 0.4346 0.4450 0.4450 0.4555 0.4555 0.4660 0.4660 0.4869 0.4869 0.4869 0.4869 0.4921 0.4974 0.5026 0.5079 0.5131 0.5183 0.5288 0.5288 0.5445 0.5445 0.5445 0.5497 0.5707 0.5707 0.5707 0.5707 0.5916 0.5916 0.5916 0.5916 0.5969 0.6073 0.6073 0.6178 0.6178 0.6230 0.6283 0.6440 0.6440 0.6440 0.6492 0.6545 0.6597 0.6649 0.6702 0.6859 0.6859 0.6859 0.7016 0.7016 0.7016 0.7173 0.7173 0.7173 0.7330 0.7330 0.7330 0.7382 0.7487 0.7487 0.7592 0.7592 0.7644 0.7749 0.7749 0.7906 0.7906 0.7906 0.7958 0.8010 0.8220 0.8220 0.8220 0.8220 0.8377 0.8377 0.8377 0.8429 0.8534 0.8534 0.8586 0.8743 0.8743 0.8743 0.8901 0.8901 0.8901 0.9162 0.9162 0.9162 0.9162 0.9162 0.9319 0.9319 0.9319 0.9372 0.9529 0.9529 0.9529 0.9686 0.9686 0.9686 0.9791 0.9791 0.9895 0.9895 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.13.8.4 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0714 0.1429 0.3571 0.3571 0.3571 0.4286 0.5000 0.5714 0.6429 0.7857 0.7857 1.0000 1.0000 1.0000 0.0952 0.0952 0.1905 0.1905 0.2857 0.2857 0.3810 0.3810 0.4762 0.4762 0.5238 0.6190 0.6190 0.7619 0.7619 0.7619 1.0000 1.0000 1.0000 1.0000 1.0000 0.1250 0.1250 0.3125 0.3125 0.3125 0.4375 0.4375 0.5000 0.5625 0.6250 0.7500 0.7500 0.9375 0.9375 0.9375 1.0000 0.0952 0.0952 0.1905 0.1905 0.2857 0.2857 0.4762 0.4762 0.4762 0.4762 0.5714 0.5714 0.6190 0.6667 0.8095 0.8095 0.8095 0.8571 1.0000 1.0000 1.0000 0.0526 0.1053 0.1579 0.3684 0.3684 0.3684 0.3684 0.4737 0.4737 0.5263 0.5789 0.7368 0.7368 0.7368 0.9474 0.9474 0.9474 0.9474 1.0000 0.0476 0.1905 0.1905 0.1905 0.2381 0.3333 0.3333 0.4286 0.4286 0.5714 0.5714 0.5714 0.7143 0.7143 0.7143 0.8571 0.8571 0.8571 1.0000 1.0000 1.0000 0.0476 0.1905 0.1905 0.1905 0.2857 0.2857 0.4762 0.4762 0.4762 0.4762 0.5714 0.5714 0.7143 0.7143 0.7143 0.7619 0.8095 0.8571 1.0000 1.0000 1.0000 0.1500 0.1500 0.1500 0.2000 0.3000 0.3000 0.4000 0.4000 0.6000 0.6000 0.6000 0.6000 0.6500 0.7000 0.8000 0.8000 0.9000 0.9000 1.0000 1.0000 0.1875 0.1875 0.1875 0.2500 0.3750 0.3750 0.6250 0.6250 0.6250 0.6250 0.6875 0.8125 0.8125 0.8750 1.0000 1.0000 0.1364 0.1364 0.1364 0.1818 0.3182 0.3182 0.3182 0.4545 0.4545 0.4545 0.5000 0.6818 0.6818 0.6818 0.6818 0.7273 0.7727 0.9091 0.9091 0.9091 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.13.8.5 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY b%10 ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.13.8.6 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.13.8.1 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(100) OVER ( ORDER BY a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 88.0000 89.0000 89.0000 90.0000 90.0000 91.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.13.8.2 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(101) OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 22.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.13.8.3 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(102) OVER ( ORDER BY b,a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 88.0000 89.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.13.8.4 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(103) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 22.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.13.8.5 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(104) OVER ( ORDER BY b%10,a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000 103.0000 104.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.13.8.6 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(105) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.13.8.7 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(105) OVER ( ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 88.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000 103.0000 104.0000 105.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+do_execsql_test 1.13.9.1 {
+  SELECT last_value(a+b) OVER ( ORDER BY a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2
+} {52   83   55   79   109   65   26   120   119   50   70   103   80   124
+  36   96   59   124   116   110   57   51   52   130   103   74   87   48
+  128   117   105   136   131   71   133   92   109   63   84   109   57
+  146   78   147   113   74   88   150   87   110   65   121   106   110
+  124   85   145   107   161   171   150   156   80   171   120   109   158
+  114   111   136   147   87   173   124   168   173   162   132   101   154
+  167   190   161   110   156   195   198   102   123   177   169   140   111
+  180   119   160   197   152   124   121   134   146   147   132   213   141
+  193   200   210   157   132   136   175   161   218   188   226   191   187
+  208   211   179   138   144   223   196   214   170   212   202   163   184
+  172   173   195   229   240   187   210   200   163   227   228   223   191
+  252   235   225   243   172   187   202   179   179   182   231   261   207
+  263   206   189   209   212   276   181   274   249   239   234   213   234
+  269   196   271   221   210   229   235   250   223   232   229   279   224
+  280   216   207   207   207   {}   {}}
+
+do_execsql_test 1.13.9.2 {
+  SELECT last_value(a+b) OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2
+} {134   218   191   212   229   240   213   234   196   223   223   223   {}
+  {}   146   65   156   132   154   102   123   119   160   152   146   147
+  136   243   261   263   210   210   210   {}   {}   120   87   162   124
+  141   138   227   228   179   231   234   280   280   280   {}   {}   57
+  110   114   136   147   167   110   180   193   191   252   187   179   206
+  181   221   279   279   279   {}   {}   80   171   173   177   157   161
+  179   214   225   182   209   269   271   235   229   229   229   {}   {}
+  113   74   87   145   190   161   169   140   111   132   213   187   208
+  223   235   189   274   274   274   {}   {}   51   52   128   109   121
+  124   85   107   150   195   226   172   173   187   223   207   212   212
+  212   {}   {}   110   87   48   110   173   124   197   211   144   196
+  195   200   202   224   216   207   207   207   {}   {}   88   171   158
+  156   198   121   210   132   210   239   250   232   232   232   {}   {}
+  59   109   150   161   111   101   200   175   188   170   202   163   184
+  163   172   276   249   229   229   229   {}   {}}
+
+do_execsql_test 1.13.9.3 {
+  SELECT last_value(a+b) OVER ( ORDER BY b,a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2
+} {57   181   80   111   26   48   144   207   36   121   132   101   163
+  172   196   119   136   63   124   179   110   179   182   74   132   189
+  51   52   85   216   163   134   123   210   78   141   57   187   71   87
+  172   173   50   224   88   59   111   170   109   213   223   146   147
+  84   114   191   206   221   157   161   209   229   74   140   107   187
+  207   212   124   202   52   232   55   184   229   106   132   152   120
+  92   110   179   235   65   70   87   110   195   200   175   234   160
+  234   136   80   113   187   109   121   124   196   156   210   239   250
+  72   109   188   202   191   105   154   79   231   147   225   103   161
+  169   223   96   83   249   212   162   227   228   167   180   193   117
+  177   214   145   208   235   150   110   211   103   158   200   168   229
+  92   156   243   280   279   116   173   269   271   131   133   223   128
+  173   197   210   99   150   161   147   218   240   109   136   146   261
+  263   124   130   252   171   190   213   274   108   195   226   119   124
+  171   198   120   276   276   276   {}   {}}
+
+do_execsql_test 1.13.9.4 {
+  SELECT last_value(a+b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2
+} {223   106   234   191   212   168   229   147   218   240   240   240   {}
+  {}   123   210   146   147   132   152   160   105   154   92   156   243
+  109   136   146   261   263   263   263   {}   {}   179   78   141   84
+  120   234   79   231   162   227   228   280   280   280   {}   {}   57
+  187   114   191   206   221   92   110   136   147   167   180   193   279
+  124   130   252   252   252   {}   {}   161   209   229   179   235   80
+  225   117   177   214   116   173   269   271   171   171   171   {}   {}
+  87   74   140   113   187   103   161   169   145   208   235   131   133
+  223   190   213   274   274   274   {}   {}   172   173   107   187   207
+  212   65   70   109   121   124   223   150   128   108   195   226   226
+  226   {}   {}   50   224   124   202   87   110   195   200   196   96
+  110   211   173   197   119   124   124   124   {}   {}   52   232   156
+  210   239   250   83   103   158   210   171   198   198   198   {}   {}
+  59   111   170   55   184   229   175   72   109   188   202   249   200
+  99   150   161   120   276   276   276   {}   {}}
+
+do_execsql_test 1.13.9.5 {
+  SELECT last_value(a+b) OVER ( ORDER BY b%10,a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2
+} {134   218   191   212   229   240   213   234   196   223   92   109   105
+  136   146   65   156   132   154   102   123   119   160   152   146   147
+  136   243   261   263   210   79   63   84   78   120   87   162   124
+  141   138   227   228   179   231   234   280   124   57   130   92   57
+  110   114   136   147   167   110   180   193   191   252   187   179   206
+  181   221   279   80   116   117   71   80   171   173   177   157   161
+  179   214   225   182   209   269   271   235   229   103   74   131   133
+  113   74   87   145   190   161   169   140   111   132   213   187   208
+  223   235   189   274   108   65   26   70   51   52   128   109   121
+  124   85   107   150   195   226   172   173   187   223   207   212   119
+  50   124   96   110   87   48   110   173   124   197   211   144   196
+  195   200   202   224   216   207   52   83   103   36   88   171   158
+  156   198   121   210   132   210   239   250   232   99   72   55   120
+  59   109   150   161   111   101   200   175   188   170   202   163   184
+  163   172   276   249   229   229   229   {}   {}}
+
+do_execsql_test 1.13.9.6 {
+  SELECT last_value(a+b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.13.10.1 {
+  SELECT nth_value(b,b+1) OVER (ORDER BY a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   43   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  84   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   65   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   74   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.13.10.2 {
+  SELECT nth_value(b,b+1) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   61   {}   {}   {}   51   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   2   {}   {}   {}   62
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.13.10.3 {
+  SELECT nth_value(b,b+1) OVER ( ORDER BY b,a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2
+} {2   3   4   5   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.13.10.4 {
+  SELECT nth_value(b,b+1) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   11
+  21   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   12   22   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.13.10.5 {
+  SELECT nth_value(b,b+1) OVER ( ORDER BY b%10,a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   61   {}   {}   {}   51   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   2   {}   {}   {}   62
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.13.10.6 {
+  SELECT nth_value(b,b+1) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.13.11.1 {
+  SELECT first_value(b) OVER (ORDER BY a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING) FROM t2
+} {96   59   38   68   39   62   91   46   6   99   97   27   46   78   54
+  97   8   67   29   93   84   77   23   16   16   93   65   35   47   7   86
+  74   61   91   85   24   85   43   59   12   32   56   3   91   22   90
+  55   15   28   89   25   47   1   56   40   43   56   16   75   36   89
+  98   76   81   4   94   42   30   78   33   29   53   63   2   87   37   80
+  84   72   41   9   61   73   95   65   13   58   96   98   1   21   74   65
+  35   5   73   11   51   87   41   12   8   20   31   31   15   95   22   73
+  79   88   34   8   11   49   34   90   59   96   60   55   75   77   44   2
+  7   85   57   74   29   70   59   19   39   26   26   47   80   90   36
+  58   47   9   72   72   66   33   93   75   64   81   9   23   37   13   12
+  14   62   91   36   91   33   15   34   36   99   3   95   69   58   52
+  30   50   84   10   84   33   21   39   44   58   30   38   34   83   27
+  82   17   7   {}   {}}
+
+do_execsql_test 1.13.11.2 {
+  SELECT first_value(b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING) FROM t2
+} {30   80   20   90   60   70   80   90   30   50   10   30   {}   {}   61
+  91   91   1   81   41   61   1   21   11   51   41   31   31   11   81   91
+  91   21   {}   {}   32   22   42   2   72   12   22   2   72   72   12   62
+  52   82   {}   {}   93   43   3   43   33   53   63   73   13   73   73
+  33   93   23   13   33   3   33   83   {}   {}   74   24   4   94   84   74
+  34   34   44   74   64   14   34   84   84   44   34   {}   {}   85   85
+  55   15   25   75   95   65   65   35   5   15   95   55   75   85   75
+  15   95   {}   {}   6   46   16   16   86   56   56   56   16   36   76
+  96   96   26   26   36   66   36   36   {}   {}   97   67   77   47   7
+  47   87   37   87   77   7   57   47   47   37   27   17   7   {}   {}   78
+  8   28   98   78   58   98   8   88   8   58   58   58   38   {}   {}   39
+  99   29   59   89   89   29   9   79   49   59   29   59   19   39   9   9
+  99   69   39   {}   {}}
+
+do_execsql_test 1.13.11.3 {
+  SELECT first_value(b) OVER ( ORDER BY b,a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2
+} {2   2   3   3   4   5   6   7   7   7   8   8   8   9   9   9   10   11
+  11   12   12   12   13   13   14   15   15   15   16   16   16   17   19
+  20   21   21   22   22   23   23   24   25   26   26   27   27   28   29
+  29   29   30   30   30   31   31   32   33   33   33   33   34   34   34
+  34   35   35   36   36   36   36   37   37   38   38   39   39   39   40
+  41   41   42   43   43   44   44   46   46   47   47   47   47   49   50
+  51   52   53   54   55   55   56   56   56   57   58   58   58   58   59
+  59   59   59   60   61   61   62   62   63   64   65   65   65   66   67
+  68   69   70   72   72   72   73   73   73   74   74   74   75   75   75
+  76   77   77   78   78   79   80   80   81   81   81   82   83   84   84
+  84   84   85   85   85   86   87   87   88   89   89   89   90   90   90
+  91   91   91   91   91   93   93   93   94   95   95   95   96   96   96
+  97   97   98   98   99   99   {}   {}}
+
+do_execsql_test 1.13.11.4 {
+  SELECT first_value(b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2
+} {30   30   30   40   50   60   70   80   80   90   90   90   {}   {}   11
+  11   21   21   31   31   41   41   51   61   61   81   81   81   91   91
+  91   91   91   {}   {}   12   12   12   22   22   32   42   52   62   62
+  72   72   72   82   {}   {}   13   13   23   23   33   33   33   33   43
+  43   53   63   73   73   73   83   93   93   93   {}   {}   24   34   34
+  34   34   44   44   54   64   74   74   74   84   84   84   84   94   {}
+  {}   15   15   25   35   35   55   55   65   65   65   75   75   75   85
+  85   85   95   95   95   {}   {}   16   16   26   26   36   36   36   36
+  46   46   56   56   56   66   76   86   96   96   96   {}   {}   7   17
+  27   27   37   37   47   47   47   47   57   67   77   77   87   87   97
+  97   {}   {}   8   28   38   38   58   58   58   58   68   78   78   88
+  98   98   {}   {}   9   19   29   29   29   39   39   39   49   59   59
+  59   59   69   79   89   89   89   99   99   {}   {}}
+
+do_execsql_test 1.13.11.5 {
+  SELECT first_value(b) OVER ( ORDER BY b%10,a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2
+} {30   80   20   90   60   70   80   90   30   50   10   30   81   91   61
+  91   91   1   81   41   61   1   21   11   51   41   31   31   11   81   91
+  91   21   62   12   32   22   42   2   72   12   22   2   72   72   12   62
+  52   82   93   23   93   43   3   43   33   53   63   73   13   73   73
+  33   93   23   13   33   3   33   83   54   84   74   24   4   94   84   74
+  34   34   44   74   64   14   34   84   84   44   34   65   35   85   85
+  55   15   25   75   95   65   65   35   5   15   95   55   75   85   75
+  15   95   96   46   6   46   16   16   86   56   56   56   16   36   76
+  96   96   26   26   36   66   36   36   97   27   97   67   77   47   7
+  47   87   37   87   77   7   57   47   47   37   27   17   7   38   68   78
+  8   28   98   78   58   98   8   88   8   58   58   58   38   89   59   39
+  99   29   59   89   89   29   9   79   49   59   29   59   19   39   9   9
+  99   69   39   {}   {}}
+
+do_execsql_test 1.13.11.6 {
+  SELECT first_value(b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.13.12.1 {
+  SELECT lead(b,b) OVER (ORDER BY a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING) FROM t2
+} {96   9   11   89   32   53   91   30   51   56   54   73   22   59   75
+  74   78   8   16   65   15   8   31   87   90   12   32   96   74   76   37
+  85   90   15   35   2   60   36   75   9   51   47   63   51   90   26   42
+  26   8   76   80   90   37   87   56   79   5   87   8   2   39   73   64
+  36   90   72   78   36   73   51   33   20   41   2   26   37   33   8   14
+  33   81   55   1   9   12   39   64   87   72   34   82   21   34   99   62
+  74   41   69   22   75   27   58   8   79   77   26   26   55   {}   29
+  30   7   {}   66   55   2   34   64   {}   33   {}   44   84   {}   {}   95
+  85   19   {}   83   {}   91   {}   {}   9   50   91   33   34   {}   {}
+  84   {}   7   9   {}   {}   {}   44   {}   {}   {}   {}   91   84   {}   95
+  95   52   {}   {}   {}   {}   {}   21   {}   {}   {}   58   {}   {}   {}
+  {}   {}   {}   {}   83   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}}
+
+do_execsql_test 1.13.12.2 {
+  SELECT lead(b,b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   81   {}   {}   {}   21   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   62   {}   {}   {}   12   {}   {}   {}   72
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   53   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   34   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   95   {}   {}   {}   {}   {}   {}   85   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   56   {}   36   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   57   {}   {}   {}   {}   {}   7   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   8   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.13.12.3 {
+  SELECT lead(b,b) OVER ( ORDER BY b,a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2
+} {1   2   3   3   5   6   7   8   8   9   9   10   11   12   12   13   13
+  14   15   16   16   17   19   20   21   22   23   24   25   26   27   27
+  28   29   30   31   32   33   33   33   34   34   35   36   36   36   37
+  38   39   39   40   41   42   43   43   44   46   47   47   47   49   50
+  52   53   54   55   56   56   57   58   58   58   59   59   59   60   61
+  62   62   64   65   65   67   69   70   72   72   73   74   74   75   75
+  75   77   78   80   81   81   83   84   84   85   85   85   87   88   89
+  89   89   90   90   91   91   91   93   93   94   95   95   96   97   97
+  98   99   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.13.12.4 {
+  SELECT lead(b,b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2
+} {80   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   1
+  11   81   81   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   12   12   72   82   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   13   23   73   73   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   34   84   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   35   85   85   95   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   36   86   96   96   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   37   47
+  47   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   58   58   68   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   39   49   59   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.13.12.5 {
+  SELECT lead(b,b) OVER ( ORDER BY b%10,a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2
+} {34   72   91   74   21   55   23   94   84   95   2   13   61   22   55
+  55   94   85   75   81   65   73   74   21   72   12   94   33   63   73
+  72   96   36   76   3   25   62   3   73   34   12   46   43   93   72   16
+  86   63   15   65   36   77   24   57   25   53   95   34   95   16   97
+  74   97   67   25   98   44   34   65   54   5   68   96   28   47   95
+  34   39   8   38   6   46   96   28   47   95   56   39   99   97   76   8
+  26   9   79   27   95   16   29   {}   58   58   77   85   56   {}   98
+  29   {}   19   96   {}   {}   78   56   98   36   97   {}   89   89   29
+  47   78   {}   {}   {}   38   68   58   {}   58   38   {}   98   {}   {}
+  {}   39   57   9   {}   79   {}   {}   7   {}   {}   {}   9   29   38   78
+  {}   {}   {}   8   39   {}   {}   {}   {}   59   {}   99   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.13.12.6 {
+  SELECT lead(b,b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.13.13.1 {
+  SELECT lag(b,b) OVER (ORDER BY a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   38   {}   {}   {}   {}
+  {}   {}   {}   6   {}   {}   {}   {}   {}   81   46   6   {}   {}   {}   {}
+  23   {}   {}   {}   {}   {}   27   {}   {}   {}   35   6   {}   12   {}
+  23   {}   {}   61   84   {}   93   39   47   {}   54   46   96   56   {}
+  16   {}   {}   {}   {}   89   {}   16   43   {}   85   56   29   99   53
+  {}   59   {}   {}   91   59   53   84   99   {}   93   63   47   {}   {}
+  98   33   67   35   75   1   23   13   55   27   75   98   35   73   63   2
+  21   27   13   24   86   23   84   31   20   94   61   65   75   23   36
+  94   55   90   41   77   96   56   29   40   12   89   63   11   5   73
+  79   1   16   28   31   73   5   39   53   63   41   11   40   2   13   33
+  9   29   90   47   72   9   73   30   44   33   74   93   29   74   42   34
+  63   41   34   96   47   77   1   36   74   72   14   36   26   77   9   72
+  64   8   91   31   52   30}
+
+do_execsql_test 1.13.13.2 {
+  SELECT lag(b,b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   61   {}   81   {}   {}   {}   {}
+  1   {}   {}   {}   {}   {}   {}   {}   {}   {}   22   {}   {}   {}   12
+  {}   {}   62   {}   {}   {}   {}   {}   {}   {}   23   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   43   {}   23   {}   {}   {}   {}   {}
+  {}   54   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   75   {}
+  {}   {}   {}   {}   {}   55   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   47   {}   {}   {}   {}
+  {}   27   7   {}   {}   {}   {}   {}   {}   {}   {}   {}   68   {}   8   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   89   {}   {}
+  {}   {}   {}   {}   {}   29   9   {}   {}   {}}
+
+do_execsql_test 1.13.13.3 {
+  SELECT lag(b,b) OVER ( ORDER BY b,a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2
+} {{}   1   1   1   1   2   2   2   2   2   2   3   3   3   4   4   5   6   6
+  6   7   7   7   7   7   8   8   8   8   8   8   9   9   9   9   9   9   9
+  9   9   9   10   10   10   10   11   11   11   11   11   12   12   12   12
+  13   13   13   13   13   14   15   15   15   15   16   16   16   16   16
+  17   19   20   20   21   21   21   21   22   22   22   22   23   23   23
+  23   23   24   23   24   24   25   26   26   26   26   26   26   26   26
+  26   26   26   27   27   27   27   28   29   29   29   29   30   30   30
+  30   30   30   31   31   31   31   31   32   32   32   32   32   32   31
+  32   33   33   33   33   33   33   34   34   34   34   34   34   34   34
+  35   35   35   35   35   36   36   36   36   36   36   36   37   37   37
+  38   38   38   38   38   38   39   39   39   39   40   40   41   41   42
+  43   42   43   43   43   43   44   44   44   46   46   46   47   47   47
+  47   47}
+
+do_execsql_test 1.13.13.4 {
+  SELECT lag(b,b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  1   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.13.13.5 {
+  SELECT lag(b,b) OVER ( ORDER BY b%10,a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   61   80   81   {}   {}   {}   {}
+  1   {}   {}   {}   30   {}   21   90   61   {}   22   {}   11   41   12
+  {}   {}   62   {}   {}   {}   {}   31   {}   50   23   30   21   90   {}
+  {}   62   {}   {}   81   {}   22   43   62   23   32   {}   91   {}   90
+  93   54   {}   {}   90   72   12   22   90   81   83   23   80   20   72
+  43   51   33   80   90   2   34   54   1   20   62   12   13   75   44   30
+  93   91   1   21   55   61   61   13   85   3   65   65   91   73   33   93
+  55   84   62   31   11   65   35   85   33   55   15   12   75   22   3
+  73   65   36   85   43   95   43   13   47   44   65   65   96   36   27
+  7   46   34   94   47   36   73   34   35   73   68   24   8   75   85   75
+  66   34   95   36   84   77   46   34   84   47   89   65   36   16   38
+  76   58   57   29   9   44   56   17}
+
+do_execsql_test 1.13.13.6 {
+  SELECT lag(b,b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.13.14.1 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (ORDER BY a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING) FROM t2
+} {96.59.38   59.38.68   38.68.39   68.39.62   39.62.91   62.91.46   91.46.6
+  46.6.99   6.99.97   99.97.27   97.27.46   27.46.78   46.78.54   78.54.97
+  54.97.8   97.8.67   8.67.29   67.29.93   29.93.84   93.84.77   84.77.23
+  77.23.16   23.16.16   16.16.93   16.93.65   93.65.35   65.35.47   35.47.7
+  47.7.86   7.86.74   86.74.61   74.61.91   61.91.85   91.85.24   85.24.85
+  24.85.43   85.43.59   43.59.12   59.12.32   12.32.56   32.56.3   56.3.91
+  3.91.22   91.22.90   22.90.55   90.55.15   55.15.28   15.28.89   28.89.25
+  89.25.47   25.47.1   47.1.56   1.56.40   56.40.43   40.43.56   43.56.16
+  56.16.75   16.75.36   75.36.89   36.89.98   89.98.76   98.76.81   76.81.4
+  81.4.94   4.94.42   94.42.30   42.30.78   30.78.33   78.33.29   33.29.53
+  29.53.63   53.63.2   63.2.87   2.87.37   87.37.80   37.80.84   80.84.72
+  84.72.41   72.41.9   41.9.61   9.61.73   61.73.95   73.95.65   95.65.13
+  65.13.58   13.58.96   58.96.98   96.98.1   98.1.21   1.21.74   21.74.65
+  74.65.35   65.35.5   35.5.73   5.73.11   73.11.51   11.51.87   51.87.41
+  87.41.12   41.12.8   12.8.20   8.20.31   20.31.31   31.31.15   31.15.95
+  15.95.22   95.22.73   22.73.79   73.79.88   79.88.34   88.34.8   34.8.11
+  8.11.49   11.49.34   49.34.90   34.90.59   90.59.96   59.96.60   96.60.55
+  60.55.75   55.75.77   75.77.44   77.44.2   44.2.7   2.7.85   7.85.57
+  85.57.74   57.74.29   74.29.70   29.70.59   70.59.19   59.19.39   19.39.26
+  39.26.26   26.26.47   26.47.80   47.80.90   80.90.36   90.36.58   36.58.47
+  58.47.9   47.9.72   9.72.72   72.72.66   72.66.33   66.33.93   33.93.75
+  93.75.64   75.64.81   64.81.9   81.9.23   9.23.37   23.37.13   37.13.12
+  13.12.14   12.14.62   14.62.91   62.91.36   91.36.91   36.91.33   91.33.15
+  33.15.34   15.34.36   34.36.99   36.99.3   99.3.95   3.95.69   95.69.58
+  69.58.52   58.52.30   52.30.50   30.50.84   50.84.10   84.10.84   10.84.33
+  84.33.21   33.21.39   21.39.44   39.44.58   44.58.30   58.30.38   30.38.34
+  38.34.83   34.83.27   83.27.82   27.82.17   82.17.7   17.7   7   {}   {}}
+
+do_execsql_test 1.13.14.2 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING) FROM t2
+} {30.80.20   80.20.90   20.90.60   90.60.70   60.70.80   70.80.90   80.90.30
+  90.30.50   30.50.10   50.10.30   10.30   30   {}   {}   61.91.91   91.91.1
+  91.1.81   1.81.41   81.41.61   41.61.1   61.1.21   1.21.11   21.11.51
+  11.51.41   51.41.31   41.31.31   31.31.11   31.11.81   11.81.91   81.91.91
+  91.91.21   91.21   21   {}   {}   32.22.42   22.42.2   42.2.72   2.72.12
+  72.12.22   12.22.2   22.2.72   2.72.72   72.72.12   72.12.62   12.62.52
+  62.52.82   52.82   82   {}   {}   93.43.3   43.3.43   3.43.33   43.33.53
+  33.53.63   53.63.73   63.73.13   73.13.73   13.73.73   73.73.33   73.33.93
+  33.93.23   93.23.13   23.13.33   13.33.3   33.3.33   3.33.83   33.83   83
+  {}   {}   74.24.4   24.4.94   4.94.84   94.84.74   84.74.34   74.34.34
+  34.34.44   34.44.74   44.74.64   74.64.14   64.14.34   14.34.84   34.84.84
+  84.84.44   84.44.34   44.34   34   {}   {}   85.85.55   85.55.15   55.15.25
+  15.25.75   25.75.95   75.95.65   95.65.65   65.65.35   65.35.5   35.5.15
+  5.15.95   15.95.55   95.55.75   55.75.85   75.85.75   85.75.15   75.15.95
+  15.95   95   {}   {}   6.46.16   46.16.16   16.16.86   16.86.56   86.56.56
+  56.56.56   56.56.16   56.16.36   16.36.76   36.76.96   76.96.96   96.96.26
+  96.26.26   26.26.36   26.36.66   36.66.36   66.36.36   36.36   36   {}   {}
+  97.67.77   67.77.47   77.47.7   47.7.47   7.47.87   47.87.37   87.37.87
+  37.87.77   87.77.7   77.7.57   7.57.47   57.47.47   47.47.37   47.37.27
+  37.27.17   27.17.7   17.7   7   {}   {}   78.8.28   8.28.98   28.98.78
+  98.78.58   78.58.98   58.98.8   98.8.88   8.88.8   88.8.58   8.58.58
+  58.58.58   58.58.38   58.38   38   {}   {}   39.99.29   99.29.59   29.59.89
+  59.89.89   89.89.29   89.29.9   29.9.79   9.79.49   79.49.59   49.59.29
+  59.29.59   29.59.19   59.19.39   19.39.9   39.9.9   9.9.99   9.99.69
+  99.69.39   69.39   39   {}   {}}
+
+do_execsql_test 1.13.14.3 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( ORDER BY b,a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2
+} {2.2.3   2.3.3   3.3.4   3.4.5   4.5.6   5.6.7   6.7.7   7.7.7   7.7.8
+  7.8.8   8.8.8   8.8.9   8.9.9   9.9.9   9.9.10   9.10.11   10.11.11
+  11.11.12   11.12.12   12.12.12   12.12.13   12.13.13   13.13.14   13.14.15
+  14.15.15   15.15.15   15.15.16   15.16.16   16.16.16   16.16.17   16.17.19
+  17.19.20   19.20.21   20.21.21   21.21.22   21.22.22   22.22.23   22.23.23
+  23.23.24   23.24.25   24.25.26   25.26.26   26.26.27   26.27.27   27.27.28
+  27.28.29   28.29.29   29.29.29   29.29.30   29.30.30   30.30.30   30.30.31
+  30.31.31   31.31.32   31.32.33   32.33.33   33.33.33   33.33.33   33.33.34
+  33.34.34   34.34.34   34.34.34   34.34.35   34.35.35   35.35.36   35.36.36
+  36.36.36   36.36.36   36.36.37   36.37.37   37.37.38   37.38.38   38.38.39
+  38.39.39   39.39.39   39.39.40   39.40.41   40.41.41   41.41.42   41.42.43
+  42.43.43   43.43.44   43.44.44   44.44.46   44.46.46   46.46.47   46.47.47
+  47.47.47   47.47.47   47.47.49   47.49.50   49.50.51   50.51.52   51.52.53
+  52.53.54   53.54.55   54.55.55   55.55.56   55.56.56   56.56.56   56.56.57
+  56.57.58   57.58.58   58.58.58   58.58.58   58.58.59   58.59.59   59.59.59
+  59.59.59   59.59.60   59.60.61   60.61.61   61.61.62   61.62.62   62.62.63
+  62.63.64   63.64.65   64.65.65   65.65.65   65.65.66   65.66.67   66.67.68
+  67.68.69   68.69.70   69.70.72   70.72.72   72.72.72   72.72.73   72.73.73
+  73.73.73   73.73.74   73.74.74   74.74.74   74.74.75   74.75.75   75.75.75
+  75.75.76   75.76.77   76.77.77   77.77.78   77.78.78   78.78.79   78.79.80
+  79.80.80   80.80.81   80.81.81   81.81.81   81.81.82   81.82.83   82.83.84
+  83.84.84   84.84.84   84.84.84   84.84.85   84.85.85   85.85.85   85.85.86
+  85.86.87   86.87.87   87.87.88   87.88.89   88.89.89   89.89.89   89.89.90
+  89.90.90   90.90.90   90.90.91   90.91.91   91.91.91   91.91.91   91.91.91
+  91.91.93   91.93.93   93.93.93   93.93.94   93.94.95   94.95.95   95.95.95
+  95.95.96   95.96.96   96.96.96   96.96.97   96.97.97   97.97.98   97.98.98
+  98.98.99   98.99.99   99.99   99   {}   {}}
+
+do_execsql_test 1.13.14.4 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2
+} {30.30.30   30.30.40   30.40.50   40.50.60   50.60.70   60.70.80   70.80.80
+  80.80.90   80.90.90   90.90.90   90.90   90   {}   {}   11.11.21   11.21.21
+  21.21.31   21.31.31   31.31.41   31.41.41   41.41.51   41.51.61   51.61.61
+  61.61.81   61.81.81   81.81.81   81.81.91   81.91.91   91.91.91   91.91.91
+  91.91.91   91.91   91   {}   {}   12.12.12   12.12.22   12.22.22   22.22.32
+  22.32.42   32.42.52   42.52.62   52.62.62   62.62.72   62.72.72   72.72.72
+  72.72.82   72.82   82   {}   {}   13.13.23   13.23.23   23.23.33   23.33.33
+  33.33.33   33.33.33   33.33.43   33.43.43   43.43.53   43.53.63   53.63.73
+  63.73.73   73.73.73   73.73.83   73.83.93   83.93.93   93.93.93   93.93
+  93   {}   {}   24.34.34   34.34.34   34.34.34   34.34.44   34.44.44
+  44.44.54   44.54.64   54.64.74   64.74.74   74.74.74   74.74.84   74.84.84
+  84.84.84   84.84.84   84.84.94   84.94   94   {}   {}   15.15.25   15.25.35
+  25.35.35   35.35.55   35.55.55   55.55.65   55.65.65   65.65.65   65.65.75
+  65.75.75   75.75.75   75.75.85   75.85.85   85.85.85   85.85.95   85.95.95
+  95.95.95   95.95   95   {}   {}   16.16.26   16.26.26   26.26.36   26.36.36
+  36.36.36   36.36.36   36.36.46   36.46.46   46.46.56   46.56.56   56.56.56
+  56.56.66   56.66.76   66.76.86   76.86.96   86.96.96   96.96.96   96.96
+  96   {}   {}   7.17.27   17.27.27   27.27.37   27.37.37   37.37.47
+  37.47.47   47.47.47   47.47.47   47.47.57   47.57.67   57.67.77   67.77.77
+  77.77.87   77.87.87   87.87.97   87.97.97   97.97   97   {}   {}   8.28.38
+  28.38.38   38.38.58   38.58.58   58.58.58   58.58.58   58.58.68   58.68.78
+  68.78.78   78.78.88   78.88.98   88.98.98   98.98   98   {}   {}   9.19.29
+  19.29.29   29.29.29   29.29.39   29.39.39   39.39.39   39.39.49   39.49.59
+  49.59.59   59.59.59   59.59.59   59.59.69   59.69.79   69.79.89   79.89.89
+  89.89.89   89.89.99   89.99.99   99.99   99   {}   {}}
+
+do_execsql_test 1.13.14.5 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( ORDER BY b%10,a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING ) FROM t2
+} {30.80.20   80.20.90   20.90.60   90.60.70   60.70.80   70.80.90   80.90.30
+  90.30.50   30.50.10   50.10.30   10.30.81   30.81.91   81.91.61   91.61.91
+  61.91.91   91.91.1   91.1.81   1.81.41   81.41.61   41.61.1   61.1.21
+  1.21.11   21.11.51   11.51.41   51.41.31   41.31.31   31.31.11   31.11.81
+  11.81.91   81.91.91   91.91.21   91.21.62   21.62.12   62.12.32   12.32.22
+  32.22.42   22.42.2   42.2.72   2.72.12   72.12.22   12.22.2   22.2.72
+  2.72.72   72.72.12   72.12.62   12.62.52   62.52.82   52.82.93   82.93.23
+  93.23.93   23.93.43   93.43.3   43.3.43   3.43.33   43.33.53   33.53.63
+  53.63.73   63.73.13   73.13.73   13.73.73   73.73.33   73.33.93   33.93.23
+  93.23.13   23.13.33   13.33.3   33.3.33   3.33.83   33.83.54   83.54.84
+  54.84.74   84.74.24   74.24.4   24.4.94   4.94.84   94.84.74   84.74.34
+  74.34.34   34.34.44   34.44.74   44.74.64   74.64.14   64.14.34   14.34.84
+  34.84.84   84.84.44   84.44.34   44.34.65   34.65.35   65.35.85   35.85.85
+  85.85.55   85.55.15   55.15.25   15.25.75   25.75.95   75.95.65   95.65.65
+  65.65.35   65.35.5   35.5.15   5.15.95   15.95.55   95.55.75   55.75.85
+  75.85.75   85.75.15   75.15.95   15.95.96   95.96.46   96.46.6   46.6.46
+  6.46.16   46.16.16   16.16.86   16.86.56   86.56.56   56.56.56   56.56.16
+  56.16.36   16.36.76   36.76.96   76.96.96   96.96.26   96.26.26   26.26.36
+  26.36.66   36.66.36   66.36.36   36.36.97   36.97.27   97.27.97   27.97.67
+  97.67.77   67.77.47   77.47.7   47.7.47   7.47.87   47.87.37   87.37.87
+  37.87.77   87.77.7   77.7.57   7.57.47   57.47.47   47.47.37   47.37.27
+  37.27.17   27.17.7   17.7.38   7.38.68   38.68.78   68.78.8   78.8.28
+  8.28.98   28.98.78   98.78.58   78.58.98   58.98.8   98.8.88   8.88.8
+  88.8.58   8.58.58   58.58.58   58.58.38   58.38.89   38.89.59   89.59.39
+  59.39.99   39.99.29   99.29.59   29.59.89   59.89.89   89.89.29   89.29.9
+  29.9.79   9.79.49   79.49.59   49.59.29   59.29.59   29.59.19   59.19.39
+  19.39.9   39.9.9   9.9.99   9.99.69   99.69.39   69.39   39   {}   {}}
+
+do_execsql_test 1.13.14.6 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.13.14.7 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (win1 ORDER BY b%10 ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING) 
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a)
+    ORDER BY 1
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.13.14.8 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (win1 ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING) 
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a ORDER BY b%10)
+    ORDER BY 1
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.13.14.9 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER win2
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a ORDER BY b%10),
+           win2 AS (win1 ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING)
+    ORDER BY 1
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.13.15.1 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE a%2=0) OVER win FROM t2
+    WINDOW win AS (ORDER BY a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING)
+} {3 96.38   3 38   3 38.39   3 39   3 39.91   3 91   3 91.6   3 6   3 6.97
+  3 97   3 97.46   3 46   3 46.54   3 54   3 54.8   3 8   3 8.29   3 29
+  3 29.84   3 84   3 84.23   3 23   3 23.16   3 16   3 16.65   3 65   3 65.47
+  3 47   3 47.86   3 86   3 86.61   3 61   3 61.85   3 85   3 85.85   3 85
+  3 85.59   3 59   3 59.32   3 32   3 32.3   3 3   3 3.22   3 22   3 22.55
+  3 55   3 55.28   3 28   3 28.25   3 25   3 25.1   3 1   3 1.40   3 40
+  3 40.56   3 56   3 56.75   3 75   3 75.89   3 89   3 89.76   3 76   3 76.4
+  3 4   3 4.42   3 42   3 42.78   3 78   3 78.29   3 29   3 29.63   3 63
+  3 63.87   3 87   3 87.80   3 80   3 80.72   3 72   3 72.9   3 9   3 9.73
+  3 73   3 73.65   3 65   3 65.58   3 58   3 58.98   3 98   3 98.21   3 21
+  3 21.65   3 65   3 65.5   3 5   3 5.11   3 11   3 11.87   3 87   3 87.12
+  3 12   3 12.20   3 20   3 20.31   3 31   3 31.95   3 95   3 95.73   3 73
+  3 73.88   3 88   3 88.8   3 8   3 8.49   3 49   3 49.90   3 90   3 90.96
+  3 96   3 96.55   3 55   3 55.77   3 77   3 77.2   3 2   3 2.85   3 85
+  3 85.74   3 74   3 74.70   3 70   3 70.19   3 19   3 19.26   3 26   3 26.47
+  3 47   3 47.90   3 90   3 90.58   3 58   3 58.9   3 9   3 9.72   3 72
+  3 72.33   3 33   3 33.75   3 75   3 75.81   3 81   3 81.23   3 23   3 23.13
+  3 13   3 13.14   3 14   3 14.91   3 91   3 91.91   3 91   3 91.15   3 15
+  3 15.36   3 36   3 36.3   3 3   3 3.69   3 69   3 69.52   3 52   3 52.50
+  3 50   3 50.10   3 10   3 10.33   3 33   3 33.39   3 39   3 39.58   3 58
+  3 58.38   3 38   3 38.83   3 83   3 83.82   3 82   3 82.7   2 7   1 7
+  0 {}   0 {}}
+
+do_execsql_test 1.13.15.2 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE 0=1) OVER win FROM t2
+    WINDOW win AS (ORDER BY a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING)
+} {3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  2 {}   1 {}   0 {}   0 {}}
+
+do_execsql_test 1.13.15.3 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE 1=0) OVER win FROM t2
+    WINDOW win AS (PARTITION BY (a%10) ORDER BY a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING)
+} {3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   2 {}   1 {}   0 {}   0 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   2 {}   1 {}   0 {}   0 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   2 {}
+  1 {}   0 {}   0 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   2 {}   1 {}   0 {}   0 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   2 {}   1 {}   0 {}   0 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   2 {}   1 {}   0 {}   0 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   2 {}   1 {}
+  0 {}   0 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   2 {}   1 {}   0 {}   0 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   2 {}   1 {}   0 {}   0 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  2 {}   1 {}   0 {}   0 {}}
+
+do_execsql_test 1.13.15.4 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE a%2=0) OVER win FROM t2
+    WINDOW win AS (PARTITION BY (a%10) ORDER BY a ROWS BETWEEN 2 FOLLOWING    AND 4 FOLLOWING)
+} {3 29.47.59   3 47.59.28   3 59.28.75   3 28.75.78   3 75.78.72   3 78.72.98
+  3 72.98.87   3 98.87.73   3 87.73.96   3 73.96.74   3 96.74.90   3 74.90.75
+  3 90.75.91   3 75.91.69   3 91.69.39   3 69.39.7   2 39.7   1 7   0 {}
+  0 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   2 {}   1 {}   0 {}   0 {}   3 84.86.32
+  3 86.32.25   3 32.25.89   3 25.89.29   3 89.29.9   3 29.9.21   3 9.21.12
+  3 21.12.88   3 12.88.55   3 88.55.70   3 55.70.58   3 70.58.81   3 58.81.91
+  3 81.91.52   3 91.52.58   2 52.58   1 58   0 {}   0 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   2 {}   1 {}   0 {}   0 {}   3 23.61.3   3 61.3.1   3 3.1.76
+  3 1.76.63   3 76.63.73   3 63.73.65   3 73.65.20   3 65.20.8   3 20.8.77
+  3 8.77.19   3 77.19.9   3 19.9.23   3 9.23.15   3 23.15.50   3 15.50.38
+  2 50.38   1 38   0 {}   0 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   2 {}   1 {}
+  0 {}   0 {}   3 16.85.22   3 85.22.40   3 22.40.4   3 40.4.87   3 4.87.65
+  3 87.65.5   3 65.5.31   3 5.31.49   3 31.49.2   3 49.2.26   3 2.26.72
+  3 26.72.13   3 72.13.36   3 13.36.10   3 36.10.83   2 10.83   1 83   0 {}
+  0 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   2 {}   1 {}   0 {}   0 {}   3 65.85.55
+  3 85.55.56   3 55.56.42   3 56.42.80   3 42.80.58   3 80.58.11   3 58.11.95
+  3 11.95.90   3 95.90.85   3 90.85.47   3 85.47.33   3 47.33.14   3 33.14.3
+  3 14.3.33   3 3.33.82   2 33.82   1 82   0 {}   0 {}   3 {}   3 {}   3 {}
+  3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}   3 {}
+  3 {}   2 {}   1 {}   0 {}   0 {}}
+
+do_execsql_test 1.14.2.1 {
+  SELECT max(b) OVER ( ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99}
+
+do_execsql_test 1.14.2.2 {
+  SELECT min(b) OVER ( ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1}
+
+do_execsql_test 1.14.3.1 {
+  SELECT row_number() OVER ( ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.14.3.2 {
+  SELECT row_number() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.14.3.3 {
+  SELECT row_number() OVER ( ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.14.4.1 {
+  SELECT dense_rank() OVER ( ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.14.4.2 {
+  SELECT dense_rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.14.4.3 {
+  SELECT dense_rank() OVER ( ORDER BY b ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   2   2   3   3   4   5   6   7   7   7   8   8   8   9   9   9   10
+  11   11   12   12   12   13   13   14   15   15   15   16   16   16   17
+  18   19   20   20   21   21   22   22   23   24   25   25   26   26   27
+  28   28   28   29   29   29   30   30   31   32   32   32   32   33   33
+  33   33   34   34   35   35   35   35   36   36   37   37   38   38   38
+  39   40   40   41   42   42   43   43   44   44   45   45   45   45   46
+  47   48   49   50   51   52   52   53   53   53   54   55   55   55   55
+  56   56   56   56   57   58   58   59   59   60   61   62   62   62   63
+  64   65   66   67   68   68   68   69   69   69   70   70   70   71   71
+  71   72   73   73   74   74   75   76   76   77   77   77   78   79   80
+  80   80   80   81   81   81   82   83   83   84   85   85   85   86   86
+  86   87   87   87   87   87   88   88   88   89   90   90   90   91   91
+  91   92   92   93   93   94   94}
+
+do_execsql_test 1.14.4.4 {
+  SELECT dense_rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   3   3   4   5   6   7   8   8   9   9   9   1   1   2   2   3
+  3   4   4   5   5   6   7   7   8   8   8   9   9   9   9   9   1   1   2
+  2   2   3   3   4   5   6   7   7   8   8   8   9   1   1   2   2   3   3
+  4   4   4   4   5   5   6   7   8   8   8   9   10   10   10   1   2   3
+  4   4   4   4   5   5   6   7   8   8   8   9   9   9   9   10   1   2   2
+  2   3   4   4   5   5   6   6   6   7   7   7   8   8   8   9   9   9   1
+  2   2   2   3   3   4   4   4   4   5   5   6   6   6   7   8   9   10   10
+  10   1   1   1   2   3   3   4   4   5   5   5   5   6   7   8   8   9   9
+  10   10   1   1   1   2   3   3   4   4   4   4   5   6   6   7   8   8   1
+  1   1   2   3   3   3   4   4   4   5   6   6   6   6   7   8   9   9   9
+  10   10}
+
+do_execsql_test 1.14.4.5 {
+  SELECT dense_rank() OVER ( ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   4   4   4   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5   5   5   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   6   6   6   6
+  6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   7   7
+  7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7
+  8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8
+  8   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   10   10
+  10   10   10   10   10   10   10   10   10   10   10   10   10   10   10
+  10   10   10   10   10}
+
+do_execsql_test 1.14.4.6 {
+  SELECT dense_rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   3   3   3   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   4   4   4   4   4   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   5   5   5   5   5   5
+  5   5   5   5   5   5   5   5   5   5   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5
+  5}
+
+do_execsql_test 1.14.5.1 {
+  SELECT rank() OVER ( ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.14.5.2 {
+  SELECT rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.14.5.3 {
+  SELECT rank() OVER ( ORDER BY b ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   3   3   5   5   7   8   9   10   10   10   13   13   13   16   16
+  16   19   20   20   22   22   22   25   25   27   28   28   28   31   31
+  31   34   35   36   37   37   39   39   41   41   43   44   45   45   47
+  47   49   50   50   50   53   53   53   56   56   58   59   59   59   59
+  63   63   63   63   67   67   69   69   69   69   73   73   75   75   77
+  77   77   80   81   81   83   84   84   86   86   88   88   90   90   90
+  90   94   95   96   97   98   99   100   100   102   102   102   105   106
+  106   106   106   110   110   110   110   114   115   115   117   117   119
+  120   121   121   121   124   125   126   127   128   129   129   129   132
+  132   132   135   135   135   138   138   138   141   142   142   144   144
+  146   147   147   149   149   149   152   153   154   154   154   154   158
+  158   158   161   162   162   164   165   165   165   168   168   168   171
+  171   171   171   171   176   176   176   179   180   180   180   183   183
+  183   186   186   188   188   190   190}
+
+do_execsql_test 1.14.5.4 {
+  SELECT rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   3   3   6   7   8   9   10   10   12   12   12   1   1   3   3
+  5   5   7   7   9   9   11   12   12   14   14   14   17   17   17   17
+  17   1   1   3   3   3   6   6   8   9   10   11   11   13   13   13   16
+  1   1   3   3   5   5   7   7   7   7   11   11   13   14   15   15   15
+  18   19   19   19   1   2   3   4   4   4   4   8   8   10   11   12   12
+  12   15   15   15   15   19   1   2   2   2   5   6   6   8   8   10   10
+  10   13   13   13   16   16   16   19   19   19   1   2   2   2   5   5   7
+  7   7   7   11   11   13   13   13   16   17   18   19   19   19   1   1
+  1   4   5   5   7   7   9   9   9   9   13   14   15   15   17   17   19
+  19   1   1   1   4   5   5   7   7   7   7   11   12   12   14   15   15
+  1   1   1   4   5   5   5   8   8   8   11   12   12   12   12   16   17
+  18   18   18   21   21}
+
+do_execsql_test 1.14.5.5 {
+  SELECT rank() OVER ( ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   15   15   15   15
+  15   15   15   15   15   15   15   15   15   15   15   15   15   15   15
+  15   15   36   36   36   36   36   36   36   36   36   36   36   36   36
+  36   36   36   52   52   52   52   52   52   52   52   52   52   52   52
+  52   52   52   52   52   52   52   52   52   73   73   73   73   73   73
+  73   73   73   73   73   73   73   73   73   73   73   73   73   92   92
+  92   92   92   92   92   92   92   92   92   92   92   92   92   92   92
+  92   92   92   92   113   113   113   113   113   113   113   113   113
+  113   113   113   113   113   113   113   113   113   113   113   113   134
+  134   134   134   134   134   134   134   134   134   134   134   134   134
+  134   134   134   134   134   134   154   154   154   154   154   154   154
+  154   154   154   154   154   154   154   154   154   170   170   170   170
+  170   170   170   170   170   170   170   170   170   170   170   170   170
+  170   170   170   170   170}
+
+do_execsql_test 1.14.5.6 {
+  SELECT rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   15   15   15   15
+  15   15   15   15   15   15   15   15   15   15   15   15   31   31   31
+  31   31   31   31   31   31   31   31   31   31   31   31   31   31   31
+  31   50   50   50   50   50   50   50   50   50   50   50   50   50   50
+  50   50   50   50   50   50   50   71   71   71   71   71   71   71   71
+  71   71   71   71   71   71   71   71   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   22   22   22   22   22   22
+  22   22   22   22   22   22   22   22   22   22   22   22   22   22   22
+  43   43   43   43   43   43   43   43   43   43   43   43   43   43   43
+  43   43   43   43   43   43   64   64   64   64   64   64   64   64   64
+  64   64   64   64   64   64   64   64   64   64   64   84   84   84   84
+  84   84   84   84   84   84   84   84   84   84   84   84   84   84   84
+  84   84   84}
+
+do_execsql_test 1.14.6.1 {
+  SELECT 
+      row_number() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ),
+      rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ),
+      dense_rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING )
+    FROM t2
+} {1 1 1   2 1 1   3 1 1   4 1 1   5 1 1   6 1 1   7 1 1   8 1 1   9 1 1
+  10 1 1   11 1 1   12 1 1   13 1 1   14 1 1   15 15 2   16 15 2   17 15 2
+  18 15 2   19 15 2   20 15 2   21 15 2   22 15 2   23 15 2   24 15 2
+  25 15 2   26 15 2   27 15 2   28 15 2   29 15 2   30 15 2   31 31 3
+  32 31 3   33 31 3   34 31 3   35 31 3   36 31 3   37 31 3   38 31 3
+  39 31 3   40 31 3   41 31 3   42 31 3   43 31 3   44 31 3   45 31 3
+  46 31 3   47 31 3   48 31 3   49 31 3   50 50 4   51 50 4   52 50 4
+  53 50 4   54 50 4   55 50 4   56 50 4   57 50 4   58 50 4   59 50 4
+  60 50 4   61 50 4   62 50 4   63 50 4   64 50 4   65 50 4   66 50 4
+  67 50 4   68 50 4   69 50 4   70 50 4   71 71 5   72 71 5   73 71 5
+  74 71 5   75 71 5   76 71 5   77 71 5   78 71 5   79 71 5   80 71 5
+  81 71 5   82 71 5   83 71 5   84 71 5   85 71 5   86 71 5   1 1 1   2 1 1
+  3 1 1   4 1 1   5 1 1   6 1 1   7 1 1   8 1 1   9 1 1   10 1 1   11 1 1
+  12 1 1   13 1 1   14 1 1   15 1 1   16 1 1   17 1 1   18 1 1   19 1 1
+  20 1 1   21 1 1   22 22 2   23 22 2   24 22 2   25 22 2   26 22 2   27 22 2
+  28 22 2   29 22 2   30 22 2   31 22 2   32 22 2   33 22 2   34 22 2
+  35 22 2   36 22 2   37 22 2   38 22 2   39 22 2   40 22 2   41 22 2
+  42 22 2   43 43 3   44 43 3   45 43 3   46 43 3   47 43 3   48 43 3
+  49 43 3   50 43 3   51 43 3   52 43 3   53 43 3   54 43 3   55 43 3
+  56 43 3   57 43 3   58 43 3   59 43 3   60 43 3   61 43 3   62 43 3
+  63 43 3   64 64 4   65 64 4   66 64 4   67 64 4   68 64 4   69 64 4
+  70 64 4   71 64 4   72 64 4   73 64 4   74 64 4   75 64 4   76 64 4
+  77 64 4   78 64 4   79 64 4   80 64 4   81 64 4   82 64 4   83 64 4
+  84 84 5   85 84 5   86 84 5   87 84 5   88 84 5   89 84 5   90 84 5
+  91 84 5   92 84 5   93 84 5   94 84 5   95 84 5   96 84 5   97 84 5
+  98 84 5   99 84 5   100 84 5   101 84 5   102 84 5   103 84 5   104 84 5
+  105 84 5}
+
+
+do_test 1.14.7.1 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0053 0.0105 0.0158 0.0211 0.0263 0.0316 0.0368 0.0421 0.0474 0.0526 0.0579 0.0632 0.0684 0.0737 0.0789 0.0842 0.0895 0.0947 0.1000 0.1053 0.1105 0.1158 0.1211 0.1263 0.1316 0.1368 0.1421 0.1474 0.1526 0.1579 0.1632 0.1684 0.1737 0.1789 0.1842 0.1895 0.1947 0.2000 0.2053 0.2105 0.2158 0.2211 0.2263 0.2316 0.2368 0.2421 0.2474 0.2526 0.2579 0.2632 0.2684 0.2737 0.2789 0.2842 0.2895 0.2947 0.3000 0.3053 0.3105 0.3158 0.3211 0.3263 0.3316 0.3368 0.3421 0.3474 0.3526 0.3579 0.3632 0.3684 0.3737 0.3789 0.3842 0.3895 0.3947 0.4000 0.4053 0.4105 0.4158 0.4211 0.4263 0.4316 0.4368 0.4421 0.4474 0.4526 0.4579 0.4632 0.4684 0.4737 0.4789 0.4842 0.4895 0.4947 0.5000 0.5053 0.5105 0.5158 0.5211 0.5263 0.5316 0.5368 0.5421 0.5474 0.5526 0.5579 0.5632 0.5684 0.5737 0.5789 0.5842 0.5895 0.5947 0.6000 0.6053 0.6105 0.6158 0.6211 0.6263 0.6316 0.6368 0.6421 0.6474 0.6526 0.6579 0.6632 0.6684 0.6737 0.6789 0.6842 0.6895 0.6947 0.7000 0.7053 0.7105 0.7158 0.7211 0.7263 0.7316 0.7368 0.7421 0.7474 0.7526 0.7579 0.7632 0.7684 0.7737 0.7789 0.7842 0.7895 0.7947 0.8000 0.8053 0.8105 0.8158 0.8211 0.8263 0.8316 0.8368 0.8421 0.8474 0.8526 0.8579 0.8632 0.8684 0.8737 0.8789 0.8842 0.8895 0.8947 0.9000 0.9053 0.9105 0.9158 0.9211 0.9263 0.9316 0.9368 0.9421 0.9474 0.9526 0.9579 0.9632 0.9684 0.9737 0.9789 0.9842 0.9895 0.9947 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.14.7.2 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0769 0.1538 0.2308 0.3077 0.3846 0.4615 0.5385 0.6154 0.6923 0.7692 0.8462 0.9231 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0667 0.1333 0.2000 0.2667 0.3333 0.4000 0.4667 0.5333 0.6000 0.6667 0.7333 0.8000 0.8667 0.9333 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0556 0.1111 0.1667 0.2222 0.2778 0.3333 0.3889 0.4444 0.5000 0.5556 0.6111 0.6667 0.7222 0.7778 0.8333 0.8889 0.9444 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0526 0.1053 0.1579 0.2105 0.2632 0.3158 0.3684 0.4211 0.4737 0.5263 0.5789 0.6316 0.6842 0.7368 0.7895 0.8421 0.8947 0.9474 1.0000 0.0000 0.0667 0.1333 0.2000 0.2667 0.3333 0.4000 0.4667 0.5333 0.6000 0.6667 0.7333 0.8000 0.8667 0.9333 1.0000 0.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.14.7.3 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY b ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0105 0.0105 0.0211 0.0211 0.0316 0.0368 0.0421 0.0474 0.0474 0.0474 0.0632 0.0632 0.0632 0.0789 0.0789 0.0789 0.0947 0.1000 0.1000 0.1105 0.1105 0.1105 0.1263 0.1263 0.1368 0.1421 0.1421 0.1421 0.1579 0.1579 0.1579 0.1737 0.1789 0.1842 0.1895 0.1895 0.2000 0.2000 0.2105 0.2105 0.2211 0.2263 0.2316 0.2316 0.2421 0.2421 0.2526 0.2579 0.2579 0.2579 0.2737 0.2737 0.2737 0.2895 0.2895 0.3000 0.3053 0.3053 0.3053 0.3053 0.3263 0.3263 0.3263 0.3263 0.3474 0.3474 0.3579 0.3579 0.3579 0.3579 0.3789 0.3789 0.3895 0.3895 0.4000 0.4000 0.4000 0.4158 0.4211 0.4211 0.4316 0.4368 0.4368 0.4474 0.4474 0.4579 0.4579 0.4684 0.4684 0.4684 0.4684 0.4895 0.4947 0.5000 0.5053 0.5105 0.5158 0.5211 0.5211 0.5316 0.5316 0.5316 0.5474 0.5526 0.5526 0.5526 0.5526 0.5737 0.5737 0.5737 0.5737 0.5947 0.6000 0.6000 0.6105 0.6105 0.6211 0.6263 0.6316 0.6316 0.6316 0.6474 0.6526 0.6579 0.6632 0.6684 0.6737 0.6737 0.6737 0.6895 0.6895 0.6895 0.7053 0.7053 0.7053 0.7211 0.7211 0.7211 0.7368 0.7421 0.7421 0.7526 0.7526 0.7632 0.7684 0.7684 0.7789 0.7789 0.7789 0.7947 0.8000 0.8053 0.8053 0.8053 0.8053 0.8263 0.8263 0.8263 0.8421 0.8474 0.8474 0.8579 0.8632 0.8632 0.8632 0.8789 0.8789 0.8789 0.8947 0.8947 0.8947 0.8947 0.8947 0.9211 0.9211 0.9211 0.9368 0.9421 0.9421 0.9421 0.9579 0.9579 0.9579 0.9737 0.9737 0.9842 0.9842 0.9947 0.9947}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.14.7.4 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0769 0.1538 0.1538 0.1538 0.3846 0.4615 0.5385 0.6154 0.6923 0.6923 0.8462 0.8462 0.8462 0.0000 0.0000 0.1000 0.1000 0.2000 0.2000 0.3000 0.3000 0.4000 0.4000 0.5000 0.5500 0.5500 0.6500 0.6500 0.6500 0.8000 0.8000 0.8000 0.8000 0.8000 0.0000 0.0000 0.1333 0.1333 0.1333 0.3333 0.3333 0.4667 0.5333 0.6000 0.6667 0.6667 0.8000 0.8000 0.8000 1.0000 0.0000 0.0000 0.1000 0.1000 0.2000 0.2000 0.3000 0.3000 0.3000 0.3000 0.5000 0.5000 0.6000 0.6500 0.7000 0.7000 0.7000 0.8500 0.9000 0.9000 0.9000 0.0000 0.0556 0.1111 0.1667 0.1667 0.1667 0.1667 0.3889 0.3889 0.5000 0.5556 0.6111 0.6111 0.6111 0.7778 0.7778 0.7778 0.7778 1.0000 0.0000 0.0500 0.0500 0.0500 0.2000 0.2500 0.2500 0.3500 0.3500 0.4500 0.4500 0.4500 0.6000 0.6000 0.6000 0.7500 0.7500 0.7500 0.9000 0.9000 0.9000 0.0000 0.0500 0.0500 0.0500 0.2000 0.2000 0.3000 0.3000 0.3000 0.3000 0.5000 0.5000 0.6000 0.6000 0.6000 0.7500 0.8000 0.8500 0.9000 0.9000 0.9000 0.0000 0.0000 0.0000 0.1579 0.2105 0.2105 0.3158 0.3158 0.4211 0.4211 0.4211 0.4211 0.6316 0.6842 0.7368 0.7368 0.8421 0.8421 0.9474 0.9474 0.0000 0.0000 0.0000 0.2000 0.2667 0.2667 0.4000 0.4000 0.4000 0.4000 0.6667 0.7333 0.7333 0.8667 0.9333 0.9333 0.0000 0.0000 0.0000 0.1429 0.1905 0.1905 0.1905 0.3333 0.3333 0.3333 0.4762 0.5238 0.5238 0.5238 0.5238 0.7143 0.7619 0.8095 0.8095 0.8095 0.9524 0.9524}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.14.7.5 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.14.7.6 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER (PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.14.8.1 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0052 0.0105 0.0157 0.0209 0.0262 0.0314 0.0366 0.0419 0.0471 0.0524 0.0576 0.0628 0.0681 0.0733 0.0785 0.0838 0.0890 0.0942 0.0995 0.1047 0.1099 0.1152 0.1204 0.1257 0.1309 0.1361 0.1414 0.1466 0.1518 0.1571 0.1623 0.1675 0.1728 0.1780 0.1832 0.1885 0.1937 0.1990 0.2042 0.2094 0.2147 0.2199 0.2251 0.2304 0.2356 0.2408 0.2461 0.2513 0.2565 0.2618 0.2670 0.2723 0.2775 0.2827 0.2880 0.2932 0.2984 0.3037 0.3089 0.3141 0.3194 0.3246 0.3298 0.3351 0.3403 0.3455 0.3508 0.3560 0.3613 0.3665 0.3717 0.3770 0.3822 0.3874 0.3927 0.3979 0.4031 0.4084 0.4136 0.4188 0.4241 0.4293 0.4346 0.4398 0.4450 0.4503 0.4555 0.4607 0.4660 0.4712 0.4764 0.4817 0.4869 0.4921 0.4974 0.5026 0.5079 0.5131 0.5183 0.5236 0.5288 0.5340 0.5393 0.5445 0.5497 0.5550 0.5602 0.5654 0.5707 0.5759 0.5812 0.5864 0.5916 0.5969 0.6021 0.6073 0.6126 0.6178 0.6230 0.6283 0.6335 0.6387 0.6440 0.6492 0.6545 0.6597 0.6649 0.6702 0.6754 0.6806 0.6859 0.6911 0.6963 0.7016 0.7068 0.7120 0.7173 0.7225 0.7277 0.7330 0.7382 0.7435 0.7487 0.7539 0.7592 0.7644 0.7696 0.7749 0.7801 0.7853 0.7906 0.7958 0.8010 0.8063 0.8115 0.8168 0.8220 0.8272 0.8325 0.8377 0.8429 0.8482 0.8534 0.8586 0.8639 0.8691 0.8743 0.8796 0.8848 0.8901 0.8953 0.9005 0.9058 0.9110 0.9162 0.9215 0.9267 0.9319 0.9372 0.9424 0.9476 0.9529 0.9581 0.9634 0.9686 0.9738 0.9791 0.9843 0.9895 0.9948 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.14.8.2 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0714 0.1429 0.2143 0.2857 0.3571 0.4286 0.5000 0.5714 0.6429 0.7143 0.7857 0.8571 0.9286 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0625 0.1250 0.1875 0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250 0.6875 0.7500 0.8125 0.8750 0.9375 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0526 0.1053 0.1579 0.2105 0.2632 0.3158 0.3684 0.4211 0.4737 0.5263 0.5789 0.6316 0.6842 0.7368 0.7895 0.8421 0.8947 0.9474 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0625 0.1250 0.1875 0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250 0.6875 0.7500 0.8125 0.8750 0.9375 1.0000 0.0455 0.0909 0.1364 0.1818 0.2273 0.2727 0.3182 0.3636 0.4091 0.4545 0.5000 0.5455 0.5909 0.6364 0.6818 0.7273 0.7727 0.8182 0.8636 0.9091 0.9545 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.14.8.3 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY b ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0105 0.0105 0.0209 0.0209 0.0314 0.0314 0.0366 0.0419 0.0471 0.0628 0.0628 0.0628 0.0785 0.0785 0.0785 0.0942 0.0942 0.0942 0.0995 0.1099 0.1099 0.1257 0.1257 0.1257 0.1361 0.1361 0.1414 0.1571 0.1571 0.1571 0.1728 0.1728 0.1728 0.1780 0.1832 0.1885 0.1990 0.1990 0.2094 0.2094 0.2199 0.2199 0.2251 0.2304 0.2408 0.2408 0.2513 0.2513 0.2565 0.2723 0.2723 0.2723 0.2880 0.2880 0.2880 0.2984 0.2984 0.3037 0.3246 0.3246 0.3246 0.3246 0.3455 0.3455 0.3455 0.3455 0.3560 0.3560 0.3770 0.3770 0.3770 0.3770 0.3874 0.3874 0.3979 0.3979 0.4136 0.4136 0.4136 0.4188 0.4293 0.4293 0.4346 0.4450 0.4450 0.4555 0.4555 0.4660 0.4660 0.4869 0.4869 0.4869 0.4869 0.4921 0.4974 0.5026 0.5079 0.5131 0.5183 0.5288 0.5288 0.5445 0.5445 0.5445 0.5497 0.5707 0.5707 0.5707 0.5707 0.5916 0.5916 0.5916 0.5916 0.5969 0.6073 0.6073 0.6178 0.6178 0.6230 0.6283 0.6440 0.6440 0.6440 0.6492 0.6545 0.6597 0.6649 0.6702 0.6859 0.6859 0.6859 0.7016 0.7016 0.7016 0.7173 0.7173 0.7173 0.7330 0.7330 0.7330 0.7382 0.7487 0.7487 0.7592 0.7592 0.7644 0.7749 0.7749 0.7906 0.7906 0.7906 0.7958 0.8010 0.8220 0.8220 0.8220 0.8220 0.8377 0.8377 0.8377 0.8429 0.8534 0.8534 0.8586 0.8743 0.8743 0.8743 0.8901 0.8901 0.8901 0.9162 0.9162 0.9162 0.9162 0.9162 0.9319 0.9319 0.9319 0.9372 0.9529 0.9529 0.9529 0.9686 0.9686 0.9686 0.9791 0.9791 0.9895 0.9895 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.14.8.4 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0714 0.1429 0.3571 0.3571 0.3571 0.4286 0.5000 0.5714 0.6429 0.7857 0.7857 1.0000 1.0000 1.0000 0.0952 0.0952 0.1905 0.1905 0.2857 0.2857 0.3810 0.3810 0.4762 0.4762 0.5238 0.6190 0.6190 0.7619 0.7619 0.7619 1.0000 1.0000 1.0000 1.0000 1.0000 0.1250 0.1250 0.3125 0.3125 0.3125 0.4375 0.4375 0.5000 0.5625 0.6250 0.7500 0.7500 0.9375 0.9375 0.9375 1.0000 0.0952 0.0952 0.1905 0.1905 0.2857 0.2857 0.4762 0.4762 0.4762 0.4762 0.5714 0.5714 0.6190 0.6667 0.8095 0.8095 0.8095 0.8571 1.0000 1.0000 1.0000 0.0526 0.1053 0.1579 0.3684 0.3684 0.3684 0.3684 0.4737 0.4737 0.5263 0.5789 0.7368 0.7368 0.7368 0.9474 0.9474 0.9474 0.9474 1.0000 0.0476 0.1905 0.1905 0.1905 0.2381 0.3333 0.3333 0.4286 0.4286 0.5714 0.5714 0.5714 0.7143 0.7143 0.7143 0.8571 0.8571 0.8571 1.0000 1.0000 1.0000 0.0476 0.1905 0.1905 0.1905 0.2857 0.2857 0.4762 0.4762 0.4762 0.4762 0.5714 0.5714 0.7143 0.7143 0.7143 0.7619 0.8095 0.8571 1.0000 1.0000 1.0000 0.1500 0.1500 0.1500 0.2000 0.3000 0.3000 0.4000 0.4000 0.6000 0.6000 0.6000 0.6000 0.6500 0.7000 0.8000 0.8000 0.9000 0.9000 1.0000 1.0000 0.1875 0.1875 0.1875 0.2500 0.3750 0.3750 0.6250 0.6250 0.6250 0.6250 0.6875 0.8125 0.8125 0.8750 1.0000 1.0000 0.1364 0.1364 0.1364 0.1818 0.3182 0.3182 0.3182 0.4545 0.4545 0.4545 0.5000 0.6818 0.6818 0.6818 0.6818 0.7273 0.7727 0.9091 0.9091 0.9091 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.14.8.5 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.14.8.6 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.14.8.1 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(100) OVER ( ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 88.0000 89.0000 89.0000 90.0000 90.0000 91.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.14.8.2 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(101) OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 22.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.14.8.3 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(102) OVER ( ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 88.0000 89.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.14.8.4 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(103) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 22.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.14.8.5 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(104) OVER ( ORDER BY b%10,a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000 103.0000 104.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.14.8.6 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(105) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.14.8.7 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(105) OVER ( ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 88.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000 103.0000 104.0000 105.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+do_execsql_test 1.14.9.1 {
+  SELECT last_value(a+b) OVER ( ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207}
+
+do_execsql_test 1.14.9.2 {
+  SELECT last_value(a+b) OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {223   223   223   223   223   223   223   223   223   223   223   223   223
+  223   210   210   210   210   210   210   210   210   210   210   210   210
+  210   210   210   210   210   210   210   210   210   280   280   280   280
+  280   280   280   280   280   280   280   280   280   280   280   280   279
+  279   279   279   279   279   279   279   279   279   279   279   279   279
+  279   279   279   279   279   279   279   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  274   274   274   274   274   274   274   274   274   274   274   274   274
+  274   274   274   274   274   274   274   274   212   212   212   212   212
+  212   212   212   212   212   212   212   212   212   212   212   212   212
+  212   212   212   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   232   232   232
+  232   232   232   232   232   232   232   232   232   232   232   232   232
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229}
+
+do_execsql_test 1.14.9.3 {
+  SELECT last_value(a+b) OVER ( ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276}
+
+do_execsql_test 1.14.9.4 {
+  SELECT last_value(a+b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {240   240   240   240   240   240   240   240   240   240   240   240   240
+  240   263   263   263   263   263   263   263   263   263   263   263   263
+  263   263   263   263   263   263   263   263   263   280   280   280   280
+  280   280   280   280   280   280   280   280   280   280   280   280   252
+  252   252   252   252   252   252   252   252   252   252   252   252   252
+  252   252   252   252   252   252   252   171   171   171   171   171   171
+  171   171   171   171   171   171   171   171   171   171   171   171   171
+  274   274   274   274   274   274   274   274   274   274   274   274   274
+  274   274   274   274   274   274   274   274   226   226   226   226   226
+  226   226   226   226   226   226   226   226   226   226   226   226   226
+  226   226   226   124   124   124   124   124   124   124   124   124   124
+  124   124   124   124   124   124   124   124   124   124   198   198   198
+  198   198   198   198   198   198   198   198   198   198   198   198   198
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276}
+
+do_execsql_test 1.14.9.5 {
+  SELECT last_value(a+b) OVER ( ORDER BY b%10,a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229}
+
+do_execsql_test 1.14.9.6 {
+  SELECT last_value(a+b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) FROM t2
+} {108   52   83   79   65   26   70   103   80   36   116   51   52   128
+  117   71   63   84   109   78   147   88   121   106   124   85   107   171
+  150   80   171   120   109   158   87   168   173   162   156   195   198
+  177   124   121   134   141   210   157   132   161   218   226   191   179
+  138   214   212   172   173   229   240   187   210   227   228   223   225
+  179   182   231   207   209   212   239   234   213   234   269   196   271
+  235   250   223   232   229   280   99   92   72   55   109   120   119
+  50   124   96   59   124   110   57   130   103   74   87   48   105   136
+  131   133   92   109   57   146   113   74   150   87   110   65   110
+  145   161   156   114   111   136   147   173   124   132   101   154   167
+  190   161   110   102   123   169   140   111   180   119   160   197   152
+  146   147   132   213   193   200   136   175   188   187   208   211   144
+  223   196   170   202   163   184   195   200   163   191   252   235   243
+  172   187   202   179   261   263   206   189   276   181   274   249   221
+  210   229   279   224   216   207}
+
+do_execsql_test 1.14.10.1 {
+  SELECT nth_value(b,b+1) OVER (ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) FROM t2
+} {96   41   5   16   85   42   43   89   1   22   39   51   73   93   22   80
+  1   73   91   94   35   74   73   37   77   54   54   74   81   91   90
+  62   65   63   36   1   95   23   95   56   16   97   86   40   59   1   84
+  98   56   78   65   96   16   90   81   40   59   56   40   54   2   85
+  96   11   87   41   38   65   32   47   80   74   35   47   98   96   13
+  24   72   73   29   12   46   36   53   35   81   27   56   5   11   81
+  93   63   81   91   68   53   99   89   13   12   97   91   29   7   7   78
+  35   84   53   84   58   61   91   99   15   61   98   16   5   75   56   2
+  37   3   96   62   95   43   63   35   78   16   67   43   16   16   90
+  72   98   85   56   90   46   29   29   4   74   74   2   76   41   46   77
+  24   27   97   46   89   1   85   1   74   78   61   85   51   59   35   30
+  56   25   47   28   73   6   73   74   93   43   3   56   47   85   61   61
+  93   9   97   62}
+
+do_execsql_test 1.14.10.2 {
+  SELECT nth_value(b,b+1) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   91   {}   11   {}   {}   {}   {}
+  11   {}   {}   {}   {}   {}   12   {}   {}   {}   32   {}   12   {}   32
+  {}   {}   12   {}   {}   {}   {}   {}   {}   {}   43   {}   {}   {}   {}
+  {}   33   {}   {}   {}   {}   {}   33   {}   43   {}   {}   {}   {}   {}
+  {}   4   {}   {}   {}   {}   {}   {}   {}   {}   34   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   55   {}   {}   {}   {}   {}   {}   15   55
+  {}   {}   {}   {}   {}   55   {}   {}   {}   86   {}   26   26   {}   {}
+  {}   {}   26   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   47   {}   {}   {}   {}   {}   47   {}   {}   {}   {}
+  {}   27   47   {}   {}   {}   98   {}   {}   {}   {}   {}   98   {}   98
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}
+  {}   {}   {}   {}   99   {}   9   9   {}   {}   {}}
+
+do_execsql_test 1.14.10.3 {
+  SELECT nth_value(b,b+1) OVER ( ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   2   2   2   2   3   3   4   5   5   5   6   6   6   7   7   7   7
+  7   7   8   8   8   8   8   8   9   9   9   9   9   9   9   11   11   12
+  12   12   12   12   12   13   13   14   14   15   15   15   15   15   15
+  16   16   16   16   16   16   17   17   17   17   19   19   19   19   20
+  20   21   21   21   21   21   21   22   22   22   22   22   23   23   23
+  24   25   25   26   26   27   27   27   27   27   27   29   29   29   30
+  30   30   31   31   31   31   31   32   33   33   33   33   33   33   33
+  33   33   33   33   34   34   34   34   34   34   34   35   35   36   36
+  36   37   37   37   37   37   37   38   38   38   38   38   38   39   39
+  39   39   39   40   41   41   41   41   41   42   43   43   43   43   43
+  44   44   44   44   46   46   46   47   47   47   47   47   47   47   47
+  47   47   47   49   49   49   50   51   51   51   52   52   52   53   53
+  54   54   55   55}
+
+do_execsql_test 1.14.10.4 {
+  SELECT nth_value(b,b+1) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {80   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   1   1
+  61   61   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   12   12   72   72   72   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   13   13   63   63   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   34   84   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  35   85   85   85   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   36   76   76   76   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   37   37   37
+  87   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   58   58   58   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   39   39   39   89   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.14.10.5 {
+  SELECT nth_value(b,b+1) OVER ( ORDER BY b%10,a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {34   2   11   34   81   34   73   33   34   34   11   82   30   11   34
+  65   13   65   65   40   34   72   13   40   41   50   93   72   81   81
+  50   34   65   65   41   73   10   91   61   12   30   54   10   61   30
+  54   54   10   73   23   44   85   1   85   22   80   22   91   93   73
+  84   30   84   84   91   85   1   30   91   80   91   74   43   64   74
+  21   20   85   64   74   21   21   2   74   33   81   21   64   64   2   21
+  93   62   14   14   3   91   11   24   55   93   93   62   90   91   55   3
+  24   14   24   91   55   15   72   60   72   61   61   34   43   43   43
+  61   12   4   15   15   51   51   12   23   12   12   25   41   25   13
+  94   12   70   12   84   32   84   94   70   33   12   12   32   41   91
+  70   22   33   84   80   31   75   84   53   75   80   84   80   53   53
+  53   22   44   63   42   95   31   63   44   44   31   90   74   52   63
+  31   63   1   42   90   90   95   3   42}
+
+do_execsql_test 1.14.10.6 {
+  SELECT nth_value(b,b+1) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.14.11.1 {
+  SELECT first_value(b) OVER (ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) FROM t2
+} {89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89}
+
+do_execsql_test 1.14.11.2 {
+  SELECT first_value(b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) FROM t2
+} {90   90   90   90   90   90   90   90   90   90   90   90   90   90   81
+  81   81   81   81   81   81   81   81   81   81   81   81   81   81   81
+  81   81   81   81   81   62   62   62   62   62   62   62   62   62   62
+  62   62   62   62   62   62   93   93   93   93   93   93   93   93   93
+  93   93   93   93   93   93   93   93   93   93   93   93   54   54   54
+  54   54   54   54   54   54   54   54   54   54   54   54   54   54   54
+  54   65   65   65   65   65   65   65   65   65   65   65   65   65   65
+  65   65   65   65   65   65   65   96   96   96   96   96   96   96   96
+  96   96   96   96   96   96   96   96   96   96   96   96   96   97   97
+  97   97   97   97   97   97   97   97   97   97   97   97   97   97   97
+  97   97   97   38   38   38   38   38   38   38   38   38   38   38   38
+  38   38   38   38   89   89   89   89   89   89   89   89   89   89   89
+  89   89   89   89   89   89   89   89   89   89   89}
+
+do_execsql_test 1.14.11.3 {
+  SELECT first_value(b) OVER ( ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1}
+
+do_execsql_test 1.14.11.4 {
+  SELECT first_value(b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {10   10   10   10   10   10   10   10   10   10   10   10   10   10   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5
+  5   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6
+  6   6   6   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7
+  7   7   7   7   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8
+  8   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9
+  9   9   9   9}
+
+do_execsql_test 1.14.11.5 {
+  SELECT first_value(b) OVER ( ORDER BY b%10,a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90   90   90   90   90
+  90   90   90   90   90   90   90   90   90   90   90}
+
+do_execsql_test 1.14.11.6 {
+  SELECT first_value(b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) FROM t2
+} {96   38   68   62   46   6   46   78   54   8   84   16   16   86   74   24
+  12   32   56   22   90   28   56   40   56   16   36   98   76   4   94
+  42   30   78   2   80   84   72   58   96   98   74   12   8   20   22   88
+  34   8   34   90   96   60   44   2   74   70   26   26   80   90   36   58
+  72   72   66   64   12   14   62   36   34   36   58   52   30   50   84
+  10   84   44   58   30   38   34   82   89   81   59   39   91   99   97
+  27   97   67   29   93   77   23   93   65   35   47   7   61   91   85
+  85   43   59   3   91   55   15   89   25   47   1   43   75   89   81   33
+  29   53   63   87   37   41   9   61   73   95   65   13   1   21   65   35
+  5   73   11   51   87   41   31   31   15   95   73   79   11   49   59
+  55   75   77   7   85   57   29   59   19   39   47   47   9   33   93   75
+  81   9   23   37   13   91   91   33   15   99   3   95   69   33   21   39
+  83   27   17   7}
+
+do_execsql_test 1.14.12.1 {
+  SELECT lead(b,b) OVER (ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) FROM t2
+} {96   9   11   89   32   53   91   30   51   56   54   73   22   59   75
+  74   78   8   16   65   15   8   31   87   90   12   32   96   74   76   37
+  85   90   15   35   2   60   36   75   9   51   47   63   51   90   26   42
+  26   8   76   80   90   37   87   56   79   5   87   8   2   39   73   64
+  36   90   72   78   36   73   51   33   20   41   2   26   37   33   8   14
+  33   81   55   1   9   12   39   64   87   72   34   82   21   34   99   62
+  74   41   69   22   75   27   58   8   79   77   26   26   55   {}   29
+  30   7   {}   66   55   2   34   64   {}   33   {}   44   84   {}   {}   95
+  85   19   {}   83   {}   91   {}   {}   9   50   91   33   34   {}   {}
+  84   {}   7   9   {}   {}   {}   44   {}   {}   {}   {}   91   84   {}   95
+  95   52   {}   {}   {}   {}   {}   21   {}   {}   {}   58   {}   {}   {}
+  {}   {}   {}   {}   83   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}}
+
+do_execsql_test 1.14.12.2 {
+  SELECT lead(b,b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   81   {}   {}   {}   21   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   62   {}   {}   {}   12   {}   {}   {}   72
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   53   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   34   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   95   {}   {}   {}   {}   {}   {}   85   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   56   {}   36   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   57   {}   {}   {}   {}   {}   7   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   8   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.14.12.3 {
+  SELECT lead(b,b) OVER ( ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   3   5   6   7   8   8   9   9   10   11   12   12   13   13
+  14   15   16   16   17   19   20   21   22   23   24   25   26   27   27
+  28   29   30   31   32   33   33   33   34   34   35   36   36   36   37
+  38   39   39   40   41   42   43   43   44   46   47   47   47   49   50
+  52   53   54   55   56   56   57   58   58   58   59   59   59   60   61
+  62   62   64   65   65   67   69   70   72   72   73   74   74   75   75
+  75   77   78   80   81   81   83   84   84   85   85   85   87   88   89
+  89   89   90   90   91   91   91   93   93   94   95   95   96   97   97
+  98   99   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.14.12.4 {
+  SELECT lead(b,b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {80   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   1
+  11   81   81   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   12   12   72   82   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   13   23   73   73   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   34   84   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   35   85   85   95   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   36   86   96   96   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   37   47
+  47   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   58   58   68   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   39   49   59   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.14.12.5 {
+  SELECT lead(b,b) OVER ( ORDER BY b%10,a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {34   72   91   74   21   55   23   94   84   95   2   13   61   22   55
+  55   94   85   75   81   65   73   74   21   72   12   94   33   63   73
+  72   96   36   76   3   25   62   3   73   34   12   46   43   93   72   16
+  86   63   15   65   36   77   24   57   25   53   95   34   95   16   97
+  74   97   67   25   98   44   34   65   54   5   68   96   28   47   95
+  34   39   8   38   6   46   96   28   47   95   56   39   99   97   76   8
+  26   9   79   27   95   16   29   {}   58   58   77   85   56   {}   98
+  29   {}   19   96   {}   {}   78   56   98   36   97   {}   89   89   29
+  47   78   {}   {}   {}   38   68   58   {}   58   38   {}   98   {}   {}
+  {}   39   57   9   {}   79   {}   {}   7   {}   {}   {}   9   29   38   78
+  {}   {}   {}   8   39   {}   {}   {}   {}   59   {}   99   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.14.12.6 {
+  SELECT lead(b,b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.14.13.1 {
+  SELECT lag(b,b) OVER (ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   38   {}   {}   {}   {}
+  {}   {}   {}   6   {}   {}   {}   {}   {}   81   46   6   {}   {}   {}   {}
+  23   {}   {}   {}   {}   {}   27   {}   {}   {}   35   6   {}   12   {}
+  23   {}   {}   61   84   {}   93   39   47   {}   54   46   96   56   {}
+  16   {}   {}   {}   {}   89   {}   16   43   {}   85   56   29   99   53
+  {}   59   {}   {}   91   59   53   84   99   {}   93   63   47   {}   {}
+  98   33   67   35   75   1   23   13   55   27   75   98   35   73   63   2
+  21   27   13   24   86   23   84   31   20   94   61   65   75   23   36
+  94   55   90   41   77   96   56   29   40   12   89   63   11   5   73
+  79   1   16   28   31   73   5   39   53   63   41   11   40   2   13   33
+  9   29   90   47   72   9   73   30   44   33   74   93   29   74   42   34
+  63   41   34   96   47   77   1   36   74   72   14   36   26   77   9   72
+  64   8   91   31   52   30}
+
+do_execsql_test 1.14.13.2 {
+  SELECT lag(b,b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   61   {}   81   {}   {}   {}   {}
+  1   {}   {}   {}   {}   {}   {}   {}   {}   {}   22   {}   {}   {}   12
+  {}   {}   62   {}   {}   {}   {}   {}   {}   {}   23   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   43   {}   23   {}   {}   {}   {}   {}
+  {}   54   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   75   {}
+  {}   {}   {}   {}   {}   55   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   47   {}   {}   {}   {}
+  {}   27   7   {}   {}   {}   {}   {}   {}   {}   {}   {}   68   {}   8   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   89   {}   {}
+  {}   {}   {}   {}   {}   29   9   {}   {}   {}}
+
+do_execsql_test 1.14.13.3 {
+  SELECT lag(b,b) OVER ( ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {{}   1   1   1   1   2   2   2   2   2   2   3   3   3   4   4   5   6   6
+  6   7   7   7   7   7   8   8   8   8   8   8   9   9   9   9   9   9   9
+  9   9   9   10   10   10   10   11   11   11   11   11   12   12   12   12
+  13   13   13   13   13   14   15   15   15   15   16   16   16   16   16
+  17   19   20   20   21   21   21   21   22   22   22   22   23   23   23
+  23   23   24   23   24   24   25   26   26   26   26   26   26   26   26
+  26   26   26   27   27   27   27   28   29   29   29   29   30   30   30
+  30   30   30   31   31   31   31   31   32   32   32   32   32   32   31
+  32   33   33   33   33   33   33   34   34   34   34   34   34   34   34
+  35   35   35   35   35   36   36   36   36   36   36   36   37   37   37
+  38   38   38   38   38   38   39   39   39   39   40   40   41   41   42
+  43   42   43   43   43   43   44   44   44   46   46   46   47   47   47
+  47   47}
+
+do_execsql_test 1.14.13.4 {
+  SELECT lag(b,b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  1   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.14.13.5 {
+  SELECT lag(b,b) OVER ( ORDER BY b%10,a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   61   80   81   {}   {}   {}   {}
+  1   {}   {}   {}   30   {}   21   90   61   {}   22   {}   11   41   12
+  {}   {}   62   {}   {}   {}   {}   31   {}   50   23   30   21   90   {}
+  {}   62   {}   {}   81   {}   22   43   62   23   32   {}   91   {}   90
+  93   54   {}   {}   90   72   12   22   90   81   83   23   80   20   72
+  43   51   33   80   90   2   34   54   1   20   62   12   13   75   44   30
+  93   91   1   21   55   61   61   13   85   3   65   65   91   73   33   93
+  55   84   62   31   11   65   35   85   33   55   15   12   75   22   3
+  73   65   36   85   43   95   43   13   47   44   65   65   96   36   27
+  7   46   34   94   47   36   73   34   35   73   68   24   8   75   85   75
+  66   34   95   36   84   77   46   34   84   47   89   65   36   16   38
+  76   58   57   29   9   44   56   17}
+
+do_execsql_test 1.14.13.6 {
+  SELECT lag(b,b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.14.14.1 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) FROM t2
+} {89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
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+
+do_execsql_test 1.14.14.2 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) FROM t2
+} {90.40.30.80.20.90.60.70.80.90.30.50.10.30
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+  96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
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+  96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
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+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38
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+  38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38
+  38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38
+  38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38
+  38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38
+  38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38
+  38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38
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+  38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
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+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
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+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39}
+
+do_execsql_test 1.14.14.3 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
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+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99}
+
+do_execsql_test 1.14.14.4 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {10.20.30.30.30.40.50.60.70.80.80.90.90.90
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+  10.20.30.30.30.40.50.60.70.80.80.90.90.90
+  10.20.30.30.30.40.50.60.70.80.80.90.90.90
+  10.20.30.30.30.40.50.60.70.80.80.90.90.90
+  10.20.30.30.30.40.50.60.70.80.80.90.90.90
+  10.20.30.30.30.40.50.60.70.80.80.90.90.90
+  10.20.30.30.30.40.50.60.70.80.80.90.90.90
+  10.20.30.30.30.40.50.60.70.80.80.90.90.90
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+  10.20.30.30.30.40.50.60.70.80.80.90.90.90
+  10.20.30.30.30.40.50.60.70.80.80.90.90.90
+  10.20.30.30.30.40.50.60.70.80.80.90.90.90
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+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
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+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
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+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
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+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  2.2.12.12.12.22.22.32.42.52.62.62.72.72.72.82
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+  2.2.12.12.12.22.22.32.42.52.62.62.72.72.72.82
+  2.2.12.12.12.22.22.32.42.52.62.62.72.72.72.82
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
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+  3.3.13.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
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+  3.3.13.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  4.14.24.34.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
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+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99}
+
+do_execsql_test 1.14.14.5 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( ORDER BY b%10,a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t2
+} {90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
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+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39}
+
+do_execsql_test 1.14.14.6 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) FROM t2
+} {96   38   68   62   46   6   46   78   54   8   84   16   16   86   74   24
+  12   32   56   22   90   28   56   40   56   16   36   98   76   4   94
+  42   30   78   2   80   84   72   58   96   98   74   12   8   20   22   88
+  34   8   34   90   96   60   44   2   74   70   26   26   80   90   36   58
+  72   72   66   64   12   14   62   36   34   36   58   52   30   50   84
+  10   84   44   58   30   38   34   82   89   81   59   39   91   99   97
+  27   97   67   29   93   77   23   93   65   35   47   7   61   91   85
+  85   43   59   3   91   55   15   89   25   47   1   43   75   89   81   33
+  29   53   63   87   37   41   9   61   73   95   65   13   1   21   65   35
+  5   73   11   51   87   41   31   31   15   95   73   79   11   49   59
+  55   75   77   7   85   57   29   59   19   39   47   47   9   33   93   75
+  81   9   23   37   13   91   91   33   15   99   3   95   69   33   21   39
+  83   27   17   7}
+
+do_execsql_test 1.14.14.7 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (win1 ORDER BY b%10 ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) 
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a)
+    ORDER BY 1
+} {1   1   10   11   11   12   12   12   13   13   14   15   15   15   16   16
+  16   17   19   2   2   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   3   3   30   30   30   31   31   32   33   33
+  33   33   34   34   34   34   35   35   36   36   36   36   37   37   38
+  38   39   39   39   4   40   41   41   42   43   43   44   44   46   46
+  47   47   47   47   49   5   50   51   52   53   54   55   55   56   56
+  56   57   58   58   58   58   59   59   59   59   6   60   61   61   62
+  62   63   64   65   65   65   66   67   68   69   7   7   7   70   72   72
+  72   73   73   73   74   74   74   75   75   75   76   77   77   78   78
+  79   8   8   8   80   80   81   81   81   82   83   84   84   84   84   85
+  85   85   86   87   87   88   89   89   89   9   9   9   90   90   90   91
+  91   91   91   91   93   93   93   94   95   95   95   96   96   96   97
+  97   98   98   99   99}
+
+do_execsql_test 1.14.14.8 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (win1 ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) 
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a ORDER BY b%10)
+    ORDER BY 1
+} {1   1   10   11   11   12   12   12   13   13   14   15   15   15   16   16
+  16   17   19   2   2   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   3   3   30   30   30   31   31   32   33   33
+  33   33   34   34   34   34   35   35   36   36   36   36   37   37   38
+  38   39   39   39   4   40   41   41   42   43   43   44   44   46   46
+  47   47   47   47   49   5   50   51   52   53   54   55   55   56   56
+  56   57   58   58   58   58   59   59   59   59   6   60   61   61   62
+  62   63   64   65   65   65   66   67   68   69   7   7   7   70   72   72
+  72   73   73   73   74   74   74   75   75   75   76   77   77   78   78
+  79   8   8   8   80   80   81   81   81   82   83   84   84   84   84   85
+  85   85   86   87   87   88   89   89   89   9   9   9   90   90   90   91
+  91   91   91   91   93   93   93   94   95   95   95   96   96   96   97
+  97   98   98   99   99}
+
+do_execsql_test 1.14.14.9 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER win2
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a ORDER BY b%10),
+           win2 AS (win1 ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING)
+    ORDER BY 1
+} {1   1   10   11   11   12   12   12   13   13   14   15   15   15   16   16
+  16   17   19   2   2   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   3   3   30   30   30   31   31   32   33   33
+  33   33   34   34   34   34   35   35   36   36   36   36   37   37   38
+  38   39   39   39   4   40   41   41   42   43   43   44   44   46   46
+  47   47   47   47   49   5   50   51   52   53   54   55   55   56   56
+  56   57   58   58   58   58   59   59   59   59   6   60   61   61   62
+  62   63   64   65   65   65   66   67   68   69   7   7   7   70   72   72
+  72   73   73   73   74   74   74   75   75   75   76   77   77   78   78
+  79   8   8   8   80   80   81   81   81   82   83   84   84   84   84   85
+  85   85   86   87   87   88   89   89   89   9   9   9   90   90   90   91
+  91   91   91   91   93   93   93   94   95   95   95   96   96   96   97
+  97   98   98   99   99}
+
+do_execsql_test 1.14.15.1 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE a%2=0) OVER win FROM t2
+    WINDOW win AS (ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING)
+} {191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
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+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7}
+
+do_execsql_test 1.14.15.2 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE 0=1) OVER win FROM t2
+    WINDOW win AS (ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING)
+} {191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}
+  191 {}   191 {}   191 {}   191 {}   191 {}   191 {}   191 {}}
+
+do_execsql_test 1.14.15.3 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE 1=0) OVER win FROM t2
+    WINDOW win AS (PARTITION BY (a%10) ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING)
+} {20 {}   20 {}   20 {}   20 {}   20 {}   20 {}   20 {}   20 {}   20 {}
+  20 {}   20 {}   20 {}   20 {}   20 {}   20 {}   20 {}   20 {}   20 {}
+  20 {}   20 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}}
+
+do_execsql_test 1.14.15.4 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE a%2=0) OVER win FROM t2
+    WINDOW win AS (PARTITION BY (a%10) ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING)
+} {20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}
+  19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}   19 {}}
+
+do_execsql_test 1.15.2.1 {
+  SELECT max(b) OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   95   95   84   84   84   84   84   84
+  84   84   83   83   83   83   83   83   83   83   83}
+
+do_execsql_test 1.15.2.2 {
+  SELECT min(b) OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3
+  3   3   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7
+  7}
+
+do_execsql_test 1.15.3.1 {
+  SELECT row_number() OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.15.3.2 {
+  SELECT row_number() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.15.3.3 {
+  SELECT row_number() OVER ( ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.15.4.1 {
+  SELECT dense_rank() OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.15.4.2 {
+  SELECT dense_rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.15.4.3 {
+  SELECT dense_rank() OVER ( ORDER BY b ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   2   2   3   3   4   5   6   7   7   7   8   8   8   9   9   9   10
+  11   11   12   12   12   13   13   14   15   15   15   16   16   16   17
+  18   19   20   20   21   21   22   22   23   24   25   25   26   26   27
+  28   28   28   29   29   29   30   30   31   32   32   32   32   33   33
+  33   33   34   34   35   35   35   35   36   36   37   37   38   38   38
+  39   40   40   41   42   42   43   43   44   44   45   45   45   45   46
+  47   48   49   50   51   52   52   53   53   53   54   55   55   55   55
+  56   56   56   56   57   58   58   59   59   60   61   62   62   62   63
+  64   65   66   67   68   68   68   69   69   69   70   70   70   71   71
+  71   72   73   73   74   74   75   76   76   77   77   77   78   79   80
+  80   80   80   81   81   81   82   83   83   84   85   85   85   86   86
+  86   87   87   87   87   87   88   88   88   89   90   90   90   91   91
+  91   92   92   93   93   94   94}
+
+do_execsql_test 1.15.4.4 {
+  SELECT dense_rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   3   3   4   5   6   7   8   8   9   9   9   1   1   2   2   3
+  3   4   4   5   5   6   7   7   8   8   8   9   9   9   9   9   1   1   2
+  2   2   3   3   4   5   6   7   7   8   8   8   9   1   1   2   2   3   3
+  4   4   4   4   5   5   6   7   8   8   8   9   10   10   10   1   2   3
+  4   4   4   4   5   5   6   7   8   8   8   9   9   9   9   10   1   2   2
+  2   3   4   4   5   5   6   6   6   7   7   7   8   8   8   9   9   9   1
+  2   2   2   3   3   4   4   4   4   5   5   6   6   6   7   8   9   10   10
+  10   1   1   1   2   3   3   4   4   5   5   5   5   6   7   8   8   9   9
+  10   10   1   1   1   2   3   3   4   4   4   4   5   6   6   7   8   8   1
+  1   1   2   3   3   3   4   4   4   5   6   6   6   6   7   8   9   9   9
+  10   10}
+
+do_execsql_test 1.15.4.5 {
+  SELECT dense_rank() OVER ( ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   4   4   4   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5   5   5   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   6   6   6   6
+  6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   7   7
+  7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7
+  8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8
+  8   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   10   10
+  10   10   10   10   10   10   10   10   10   10   10   10   10   10   10
+  10   10   10   10   10}
+
+do_execsql_test 1.15.4.6 {
+  SELECT dense_rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   3   3   3   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   4   4   4   4   4   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   5   5   5   5   5   5
+  5   5   5   5   5   5   5   5   5   5   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5
+  5}
+
+do_execsql_test 1.15.5.1 {
+  SELECT rank() OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.15.5.2 {
+  SELECT rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.15.5.3 {
+  SELECT rank() OVER ( ORDER BY b ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   3   3   5   5   7   8   9   10   10   10   13   13   13   16   16
+  16   19   20   20   22   22   22   25   25   27   28   28   28   31   31
+  31   34   35   36   37   37   39   39   41   41   43   44   45   45   47
+  47   49   50   50   50   53   53   53   56   56   58   59   59   59   59
+  63   63   63   63   67   67   69   69   69   69   73   73   75   75   77
+  77   77   80   81   81   83   84   84   86   86   88   88   90   90   90
+  90   94   95   96   97   98   99   100   100   102   102   102   105   106
+  106   106   106   110   110   110   110   114   115   115   117   117   119
+  120   121   121   121   124   125   126   127   128   129   129   129   132
+  132   132   135   135   135   138   138   138   141   142   142   144   144
+  146   147   147   149   149   149   152   153   154   154   154   154   158
+  158   158   161   162   162   164   165   165   165   168   168   168   171
+  171   171   171   171   176   176   176   179   180   180   180   183   183
+  183   186   186   188   188   190   190}
+
+do_execsql_test 1.15.5.4 {
+  SELECT rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   3   3   6   7   8   9   10   10   12   12   12   1   1   3   3
+  5   5   7   7   9   9   11   12   12   14   14   14   17   17   17   17
+  17   1   1   3   3   3   6   6   8   9   10   11   11   13   13   13   16
+  1   1   3   3   5   5   7   7   7   7   11   11   13   14   15   15   15
+  18   19   19   19   1   2   3   4   4   4   4   8   8   10   11   12   12
+  12   15   15   15   15   19   1   2   2   2   5   6   6   8   8   10   10
+  10   13   13   13   16   16   16   19   19   19   1   2   2   2   5   5   7
+  7   7   7   11   11   13   13   13   16   17   18   19   19   19   1   1
+  1   4   5   5   7   7   9   9   9   9   13   14   15   15   17   17   19
+  19   1   1   1   4   5   5   7   7   7   7   11   12   12   14   15   15
+  1   1   1   4   5   5   5   8   8   8   11   12   12   12   12   16   17
+  18   18   18   21   21}
+
+do_execsql_test 1.15.5.5 {
+  SELECT rank() OVER ( ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   15   15   15   15
+  15   15   15   15   15   15   15   15   15   15   15   15   15   15   15
+  15   15   36   36   36   36   36   36   36   36   36   36   36   36   36
+  36   36   36   52   52   52   52   52   52   52   52   52   52   52   52
+  52   52   52   52   52   52   52   52   52   73   73   73   73   73   73
+  73   73   73   73   73   73   73   73   73   73   73   73   73   92   92
+  92   92   92   92   92   92   92   92   92   92   92   92   92   92   92
+  92   92   92   92   113   113   113   113   113   113   113   113   113
+  113   113   113   113   113   113   113   113   113   113   113   113   134
+  134   134   134   134   134   134   134   134   134   134   134   134   134
+  134   134   134   134   134   134   154   154   154   154   154   154   154
+  154   154   154   154   154   154   154   154   154   170   170   170   170
+  170   170   170   170   170   170   170   170   170   170   170   170   170
+  170   170   170   170   170}
+
+do_execsql_test 1.15.5.6 {
+  SELECT rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   15   15   15   15
+  15   15   15   15   15   15   15   15   15   15   15   15   31   31   31
+  31   31   31   31   31   31   31   31   31   31   31   31   31   31   31
+  31   50   50   50   50   50   50   50   50   50   50   50   50   50   50
+  50   50   50   50   50   50   50   71   71   71   71   71   71   71   71
+  71   71   71   71   71   71   71   71   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   22   22   22   22   22   22
+  22   22   22   22   22   22   22   22   22   22   22   22   22   22   22
+  43   43   43   43   43   43   43   43   43   43   43   43   43   43   43
+  43   43   43   43   43   43   64   64   64   64   64   64   64   64   64
+  64   64   64   64   64   64   64   64   64   64   64   84   84   84   84
+  84   84   84   84   84   84   84   84   84   84   84   84   84   84   84
+  84   84   84}
+
+do_execsql_test 1.15.6.1 {
+  SELECT 
+      row_number() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ),
+      rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ),
+      dense_rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING )
+    FROM t2
+} {1 1 1   2 1 1   3 1 1   4 1 1   5 1 1   6 1 1   7 1 1   8 1 1   9 1 1
+  10 1 1   11 1 1   12 1 1   13 1 1   14 1 1   15 15 2   16 15 2   17 15 2
+  18 15 2   19 15 2   20 15 2   21 15 2   22 15 2   23 15 2   24 15 2
+  25 15 2   26 15 2   27 15 2   28 15 2   29 15 2   30 15 2   31 31 3
+  32 31 3   33 31 3   34 31 3   35 31 3   36 31 3   37 31 3   38 31 3
+  39 31 3   40 31 3   41 31 3   42 31 3   43 31 3   44 31 3   45 31 3
+  46 31 3   47 31 3   48 31 3   49 31 3   50 50 4   51 50 4   52 50 4
+  53 50 4   54 50 4   55 50 4   56 50 4   57 50 4   58 50 4   59 50 4
+  60 50 4   61 50 4   62 50 4   63 50 4   64 50 4   65 50 4   66 50 4
+  67 50 4   68 50 4   69 50 4   70 50 4   71 71 5   72 71 5   73 71 5
+  74 71 5   75 71 5   76 71 5   77 71 5   78 71 5   79 71 5   80 71 5
+  81 71 5   82 71 5   83 71 5   84 71 5   85 71 5   86 71 5   1 1 1   2 1 1
+  3 1 1   4 1 1   5 1 1   6 1 1   7 1 1   8 1 1   9 1 1   10 1 1   11 1 1
+  12 1 1   13 1 1   14 1 1   15 1 1   16 1 1   17 1 1   18 1 1   19 1 1
+  20 1 1   21 1 1   22 22 2   23 22 2   24 22 2   25 22 2   26 22 2   27 22 2
+  28 22 2   29 22 2   30 22 2   31 22 2   32 22 2   33 22 2   34 22 2
+  35 22 2   36 22 2   37 22 2   38 22 2   39 22 2   40 22 2   41 22 2
+  42 22 2   43 43 3   44 43 3   45 43 3   46 43 3   47 43 3   48 43 3
+  49 43 3   50 43 3   51 43 3   52 43 3   53 43 3   54 43 3   55 43 3
+  56 43 3   57 43 3   58 43 3   59 43 3   60 43 3   61 43 3   62 43 3
+  63 43 3   64 64 4   65 64 4   66 64 4   67 64 4   68 64 4   69 64 4
+  70 64 4   71 64 4   72 64 4   73 64 4   74 64 4   75 64 4   76 64 4
+  77 64 4   78 64 4   79 64 4   80 64 4   81 64 4   82 64 4   83 64 4
+  84 84 5   85 84 5   86 84 5   87 84 5   88 84 5   89 84 5   90 84 5
+  91 84 5   92 84 5   93 84 5   94 84 5   95 84 5   96 84 5   97 84 5
+  98 84 5   99 84 5   100 84 5   101 84 5   102 84 5   103 84 5   104 84 5
+  105 84 5}
+
+
+do_test 1.15.7.1 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0053 0.0105 0.0158 0.0211 0.0263 0.0316 0.0368 0.0421 0.0474 0.0526 0.0579 0.0632 0.0684 0.0737 0.0789 0.0842 0.0895 0.0947 0.1000 0.1053 0.1105 0.1158 0.1211 0.1263 0.1316 0.1368 0.1421 0.1474 0.1526 0.1579 0.1632 0.1684 0.1737 0.1789 0.1842 0.1895 0.1947 0.2000 0.2053 0.2105 0.2158 0.2211 0.2263 0.2316 0.2368 0.2421 0.2474 0.2526 0.2579 0.2632 0.2684 0.2737 0.2789 0.2842 0.2895 0.2947 0.3000 0.3053 0.3105 0.3158 0.3211 0.3263 0.3316 0.3368 0.3421 0.3474 0.3526 0.3579 0.3632 0.3684 0.3737 0.3789 0.3842 0.3895 0.3947 0.4000 0.4053 0.4105 0.4158 0.4211 0.4263 0.4316 0.4368 0.4421 0.4474 0.4526 0.4579 0.4632 0.4684 0.4737 0.4789 0.4842 0.4895 0.4947 0.5000 0.5053 0.5105 0.5158 0.5211 0.5263 0.5316 0.5368 0.5421 0.5474 0.5526 0.5579 0.5632 0.5684 0.5737 0.5789 0.5842 0.5895 0.5947 0.6000 0.6053 0.6105 0.6158 0.6211 0.6263 0.6316 0.6368 0.6421 0.6474 0.6526 0.6579 0.6632 0.6684 0.6737 0.6789 0.6842 0.6895 0.6947 0.7000 0.7053 0.7105 0.7158 0.7211 0.7263 0.7316 0.7368 0.7421 0.7474 0.7526 0.7579 0.7632 0.7684 0.7737 0.7789 0.7842 0.7895 0.7947 0.8000 0.8053 0.8105 0.8158 0.8211 0.8263 0.8316 0.8368 0.8421 0.8474 0.8526 0.8579 0.8632 0.8684 0.8737 0.8789 0.8842 0.8895 0.8947 0.9000 0.9053 0.9105 0.9158 0.9211 0.9263 0.9316 0.9368 0.9421 0.9474 0.9526 0.9579 0.9632 0.9684 0.9737 0.9789 0.9842 0.9895 0.9947 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.15.7.2 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0769 0.1538 0.2308 0.3077 0.3846 0.4615 0.5385 0.6154 0.6923 0.7692 0.8462 0.9231 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0667 0.1333 0.2000 0.2667 0.3333 0.4000 0.4667 0.5333 0.6000 0.6667 0.7333 0.8000 0.8667 0.9333 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0556 0.1111 0.1667 0.2222 0.2778 0.3333 0.3889 0.4444 0.5000 0.5556 0.6111 0.6667 0.7222 0.7778 0.8333 0.8889 0.9444 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0526 0.1053 0.1579 0.2105 0.2632 0.3158 0.3684 0.4211 0.4737 0.5263 0.5789 0.6316 0.6842 0.7368 0.7895 0.8421 0.8947 0.9474 1.0000 0.0000 0.0667 0.1333 0.2000 0.2667 0.3333 0.4000 0.4667 0.5333 0.6000 0.6667 0.7333 0.8000 0.8667 0.9333 1.0000 0.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.15.7.3 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY b ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0105 0.0105 0.0211 0.0211 0.0316 0.0368 0.0421 0.0474 0.0474 0.0474 0.0632 0.0632 0.0632 0.0789 0.0789 0.0789 0.0947 0.1000 0.1000 0.1105 0.1105 0.1105 0.1263 0.1263 0.1368 0.1421 0.1421 0.1421 0.1579 0.1579 0.1579 0.1737 0.1789 0.1842 0.1895 0.1895 0.2000 0.2000 0.2105 0.2105 0.2211 0.2263 0.2316 0.2316 0.2421 0.2421 0.2526 0.2579 0.2579 0.2579 0.2737 0.2737 0.2737 0.2895 0.2895 0.3000 0.3053 0.3053 0.3053 0.3053 0.3263 0.3263 0.3263 0.3263 0.3474 0.3474 0.3579 0.3579 0.3579 0.3579 0.3789 0.3789 0.3895 0.3895 0.4000 0.4000 0.4000 0.4158 0.4211 0.4211 0.4316 0.4368 0.4368 0.4474 0.4474 0.4579 0.4579 0.4684 0.4684 0.4684 0.4684 0.4895 0.4947 0.5000 0.5053 0.5105 0.5158 0.5211 0.5211 0.5316 0.5316 0.5316 0.5474 0.5526 0.5526 0.5526 0.5526 0.5737 0.5737 0.5737 0.5737 0.5947 0.6000 0.6000 0.6105 0.6105 0.6211 0.6263 0.6316 0.6316 0.6316 0.6474 0.6526 0.6579 0.6632 0.6684 0.6737 0.6737 0.6737 0.6895 0.6895 0.6895 0.7053 0.7053 0.7053 0.7211 0.7211 0.7211 0.7368 0.7421 0.7421 0.7526 0.7526 0.7632 0.7684 0.7684 0.7789 0.7789 0.7789 0.7947 0.8000 0.8053 0.8053 0.8053 0.8053 0.8263 0.8263 0.8263 0.8421 0.8474 0.8474 0.8579 0.8632 0.8632 0.8632 0.8789 0.8789 0.8789 0.8947 0.8947 0.8947 0.8947 0.8947 0.9211 0.9211 0.9211 0.9368 0.9421 0.9421 0.9421 0.9579 0.9579 0.9579 0.9737 0.9737 0.9842 0.9842 0.9947 0.9947}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.15.7.4 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0769 0.1538 0.1538 0.1538 0.3846 0.4615 0.5385 0.6154 0.6923 0.6923 0.8462 0.8462 0.8462 0.0000 0.0000 0.1000 0.1000 0.2000 0.2000 0.3000 0.3000 0.4000 0.4000 0.5000 0.5500 0.5500 0.6500 0.6500 0.6500 0.8000 0.8000 0.8000 0.8000 0.8000 0.0000 0.0000 0.1333 0.1333 0.1333 0.3333 0.3333 0.4667 0.5333 0.6000 0.6667 0.6667 0.8000 0.8000 0.8000 1.0000 0.0000 0.0000 0.1000 0.1000 0.2000 0.2000 0.3000 0.3000 0.3000 0.3000 0.5000 0.5000 0.6000 0.6500 0.7000 0.7000 0.7000 0.8500 0.9000 0.9000 0.9000 0.0000 0.0556 0.1111 0.1667 0.1667 0.1667 0.1667 0.3889 0.3889 0.5000 0.5556 0.6111 0.6111 0.6111 0.7778 0.7778 0.7778 0.7778 1.0000 0.0000 0.0500 0.0500 0.0500 0.2000 0.2500 0.2500 0.3500 0.3500 0.4500 0.4500 0.4500 0.6000 0.6000 0.6000 0.7500 0.7500 0.7500 0.9000 0.9000 0.9000 0.0000 0.0500 0.0500 0.0500 0.2000 0.2000 0.3000 0.3000 0.3000 0.3000 0.5000 0.5000 0.6000 0.6000 0.6000 0.7500 0.8000 0.8500 0.9000 0.9000 0.9000 0.0000 0.0000 0.0000 0.1579 0.2105 0.2105 0.3158 0.3158 0.4211 0.4211 0.4211 0.4211 0.6316 0.6842 0.7368 0.7368 0.8421 0.8421 0.9474 0.9474 0.0000 0.0000 0.0000 0.2000 0.2667 0.2667 0.4000 0.4000 0.4000 0.4000 0.6667 0.7333 0.7333 0.8667 0.9333 0.9333 0.0000 0.0000 0.0000 0.1429 0.1905 0.1905 0.1905 0.3333 0.3333 0.3333 0.4762 0.5238 0.5238 0.5238 0.5238 0.7143 0.7619 0.8095 0.8095 0.8095 0.9524 0.9524}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.15.7.5 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.15.7.6 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER (PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.15.8.1 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0052 0.0105 0.0157 0.0209 0.0262 0.0314 0.0366 0.0419 0.0471 0.0524 0.0576 0.0628 0.0681 0.0733 0.0785 0.0838 0.0890 0.0942 0.0995 0.1047 0.1099 0.1152 0.1204 0.1257 0.1309 0.1361 0.1414 0.1466 0.1518 0.1571 0.1623 0.1675 0.1728 0.1780 0.1832 0.1885 0.1937 0.1990 0.2042 0.2094 0.2147 0.2199 0.2251 0.2304 0.2356 0.2408 0.2461 0.2513 0.2565 0.2618 0.2670 0.2723 0.2775 0.2827 0.2880 0.2932 0.2984 0.3037 0.3089 0.3141 0.3194 0.3246 0.3298 0.3351 0.3403 0.3455 0.3508 0.3560 0.3613 0.3665 0.3717 0.3770 0.3822 0.3874 0.3927 0.3979 0.4031 0.4084 0.4136 0.4188 0.4241 0.4293 0.4346 0.4398 0.4450 0.4503 0.4555 0.4607 0.4660 0.4712 0.4764 0.4817 0.4869 0.4921 0.4974 0.5026 0.5079 0.5131 0.5183 0.5236 0.5288 0.5340 0.5393 0.5445 0.5497 0.5550 0.5602 0.5654 0.5707 0.5759 0.5812 0.5864 0.5916 0.5969 0.6021 0.6073 0.6126 0.6178 0.6230 0.6283 0.6335 0.6387 0.6440 0.6492 0.6545 0.6597 0.6649 0.6702 0.6754 0.6806 0.6859 0.6911 0.6963 0.7016 0.7068 0.7120 0.7173 0.7225 0.7277 0.7330 0.7382 0.7435 0.7487 0.7539 0.7592 0.7644 0.7696 0.7749 0.7801 0.7853 0.7906 0.7958 0.8010 0.8063 0.8115 0.8168 0.8220 0.8272 0.8325 0.8377 0.8429 0.8482 0.8534 0.8586 0.8639 0.8691 0.8743 0.8796 0.8848 0.8901 0.8953 0.9005 0.9058 0.9110 0.9162 0.9215 0.9267 0.9319 0.9372 0.9424 0.9476 0.9529 0.9581 0.9634 0.9686 0.9738 0.9791 0.9843 0.9895 0.9948 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.15.8.2 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0714 0.1429 0.2143 0.2857 0.3571 0.4286 0.5000 0.5714 0.6429 0.7143 0.7857 0.8571 0.9286 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0625 0.1250 0.1875 0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250 0.6875 0.7500 0.8125 0.8750 0.9375 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0526 0.1053 0.1579 0.2105 0.2632 0.3158 0.3684 0.4211 0.4737 0.5263 0.5789 0.6316 0.6842 0.7368 0.7895 0.8421 0.8947 0.9474 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0625 0.1250 0.1875 0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250 0.6875 0.7500 0.8125 0.8750 0.9375 1.0000 0.0455 0.0909 0.1364 0.1818 0.2273 0.2727 0.3182 0.3636 0.4091 0.4545 0.5000 0.5455 0.5909 0.6364 0.6818 0.7273 0.7727 0.8182 0.8636 0.9091 0.9545 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.15.8.3 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY b ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0105 0.0105 0.0209 0.0209 0.0314 0.0314 0.0366 0.0419 0.0471 0.0628 0.0628 0.0628 0.0785 0.0785 0.0785 0.0942 0.0942 0.0942 0.0995 0.1099 0.1099 0.1257 0.1257 0.1257 0.1361 0.1361 0.1414 0.1571 0.1571 0.1571 0.1728 0.1728 0.1728 0.1780 0.1832 0.1885 0.1990 0.1990 0.2094 0.2094 0.2199 0.2199 0.2251 0.2304 0.2408 0.2408 0.2513 0.2513 0.2565 0.2723 0.2723 0.2723 0.2880 0.2880 0.2880 0.2984 0.2984 0.3037 0.3246 0.3246 0.3246 0.3246 0.3455 0.3455 0.3455 0.3455 0.3560 0.3560 0.3770 0.3770 0.3770 0.3770 0.3874 0.3874 0.3979 0.3979 0.4136 0.4136 0.4136 0.4188 0.4293 0.4293 0.4346 0.4450 0.4450 0.4555 0.4555 0.4660 0.4660 0.4869 0.4869 0.4869 0.4869 0.4921 0.4974 0.5026 0.5079 0.5131 0.5183 0.5288 0.5288 0.5445 0.5445 0.5445 0.5497 0.5707 0.5707 0.5707 0.5707 0.5916 0.5916 0.5916 0.5916 0.5969 0.6073 0.6073 0.6178 0.6178 0.6230 0.6283 0.6440 0.6440 0.6440 0.6492 0.6545 0.6597 0.6649 0.6702 0.6859 0.6859 0.6859 0.7016 0.7016 0.7016 0.7173 0.7173 0.7173 0.7330 0.7330 0.7330 0.7382 0.7487 0.7487 0.7592 0.7592 0.7644 0.7749 0.7749 0.7906 0.7906 0.7906 0.7958 0.8010 0.8220 0.8220 0.8220 0.8220 0.8377 0.8377 0.8377 0.8429 0.8534 0.8534 0.8586 0.8743 0.8743 0.8743 0.8901 0.8901 0.8901 0.9162 0.9162 0.9162 0.9162 0.9162 0.9319 0.9319 0.9319 0.9372 0.9529 0.9529 0.9529 0.9686 0.9686 0.9686 0.9791 0.9791 0.9895 0.9895 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.15.8.4 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0714 0.1429 0.3571 0.3571 0.3571 0.4286 0.5000 0.5714 0.6429 0.7857 0.7857 1.0000 1.0000 1.0000 0.0952 0.0952 0.1905 0.1905 0.2857 0.2857 0.3810 0.3810 0.4762 0.4762 0.5238 0.6190 0.6190 0.7619 0.7619 0.7619 1.0000 1.0000 1.0000 1.0000 1.0000 0.1250 0.1250 0.3125 0.3125 0.3125 0.4375 0.4375 0.5000 0.5625 0.6250 0.7500 0.7500 0.9375 0.9375 0.9375 1.0000 0.0952 0.0952 0.1905 0.1905 0.2857 0.2857 0.4762 0.4762 0.4762 0.4762 0.5714 0.5714 0.6190 0.6667 0.8095 0.8095 0.8095 0.8571 1.0000 1.0000 1.0000 0.0526 0.1053 0.1579 0.3684 0.3684 0.3684 0.3684 0.4737 0.4737 0.5263 0.5789 0.7368 0.7368 0.7368 0.9474 0.9474 0.9474 0.9474 1.0000 0.0476 0.1905 0.1905 0.1905 0.2381 0.3333 0.3333 0.4286 0.4286 0.5714 0.5714 0.5714 0.7143 0.7143 0.7143 0.8571 0.8571 0.8571 1.0000 1.0000 1.0000 0.0476 0.1905 0.1905 0.1905 0.2857 0.2857 0.4762 0.4762 0.4762 0.4762 0.5714 0.5714 0.7143 0.7143 0.7143 0.7619 0.8095 0.8571 1.0000 1.0000 1.0000 0.1500 0.1500 0.1500 0.2000 0.3000 0.3000 0.4000 0.4000 0.6000 0.6000 0.6000 0.6000 0.6500 0.7000 0.8000 0.8000 0.9000 0.9000 1.0000 1.0000 0.1875 0.1875 0.1875 0.2500 0.3750 0.3750 0.6250 0.6250 0.6250 0.6250 0.6875 0.8125 0.8125 0.8750 1.0000 1.0000 0.1364 0.1364 0.1364 0.1818 0.3182 0.3182 0.3182 0.4545 0.4545 0.4545 0.5000 0.6818 0.6818 0.6818 0.6818 0.7273 0.7727 0.9091 0.9091 0.9091 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.15.8.5 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.15.8.6 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.15.8.1 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(100) OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 88.0000 89.0000 89.0000 90.0000 90.0000 91.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.15.8.2 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(101) OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 22.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.15.8.3 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(102) OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 88.0000 89.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.15.8.4 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(103) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 22.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.15.8.5 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(104) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000 103.0000 104.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.15.8.6 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(105) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.15.8.7 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(105) OVER ( ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 88.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000 103.0000 104.0000 105.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+do_execsql_test 1.15.9.1 {
+  SELECT last_value(a+b) OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207}
+
+do_execsql_test 1.15.9.2 {
+  SELECT last_value(a+b) OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {223   223   223   223   223   223   223   223   223   223   223   223   223
+  223   210   210   210   210   210   210   210   210   210   210   210   210
+  210   210   210   210   210   210   210   210   210   280   280   280   280
+  280   280   280   280   280   280   280   280   280   280   280   280   279
+  279   279   279   279   279   279   279   279   279   279   279   279   279
+  279   279   279   279   279   279   279   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  274   274   274   274   274   274   274   274   274   274   274   274   274
+  274   274   274   274   274   274   274   274   212   212   212   212   212
+  212   212   212   212   212   212   212   212   212   212   212   212   212
+  212   212   212   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   232   232   232
+  232   232   232   232   232   232   232   232   232   232   232   232   232
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229}
+
+do_execsql_test 1.15.9.3 {
+  SELECT last_value(a+b) OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276}
+
+do_execsql_test 1.15.9.4 {
+  SELECT last_value(a+b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {240   240   240   240   240   240   240   240   240   240   240   240   240
+  240   263   263   263   263   263   263   263   263   263   263   263   263
+  263   263   263   263   263   263   263   263   263   280   280   280   280
+  280   280   280   280   280   280   280   280   280   280   280   280   252
+  252   252   252   252   252   252   252   252   252   252   252   252   252
+  252   252   252   252   252   252   252   171   171   171   171   171   171
+  171   171   171   171   171   171   171   171   171   171   171   171   171
+  274   274   274   274   274   274   274   274   274   274   274   274   274
+  274   274   274   274   274   274   274   274   226   226   226   226   226
+  226   226   226   226   226   226   226   226   226   226   226   226   226
+  226   226   226   124   124   124   124   124   124   124   124   124   124
+  124   124   124   124   124   124   124   124   124   124   198   198   198
+  198   198   198   198   198   198   198   198   198   198   198   198   198
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276}
+
+do_execsql_test 1.15.9.5 {
+  SELECT last_value(a+b) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229}
+
+do_execsql_test 1.15.9.6 {
+  SELECT last_value(a+b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING) FROM t2
+} {108   52   83   79   65   26   70   103   80   36   116   51   52   128
+  117   71   63   84   109   78   147   88   121   106   124   85   107   171
+  150   80   171   120   109   158   87   168   173   162   156   195   198
+  177   124   121   134   141   210   157   132   161   218   226   191   179
+  138   214   212   172   173   229   240   187   210   227   228   223   225
+  179   182   231   207   209   212   239   234   213   234   269   196   271
+  235   250   223   232   229   280   99   92   72   55   109   120   119
+  50   124   96   59   124   110   57   130   103   74   87   48   105   136
+  131   133   92   109   57   146   113   74   150   87   110   65   110
+  145   161   156   114   111   136   147   173   124   132   101   154   167
+  190   161   110   102   123   169   140   111   180   119   160   197   152
+  146   147   132   213   193   200   136   175   188   187   208   211   144
+  223   196   170   202   163   184   195   200   163   191   252   235   243
+  172   187   202   179   261   263   206   189   276   181   274   249   221
+  210   229   279   224   216   207}
+
+do_execsql_test 1.15.10.1 {
+  SELECT nth_value(b,b+1) OVER (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING) FROM t2
+} {96   41   5   16   85   30   12   81   35   89   97   31   31   85   40
+  96   4   73   84   9   91   73   12   5   56   24   85   49   96   75   53
+  61   8   8   1   55   34   43   59   80   35   15   78   35   56   70   76
+  59   51   75   63   26   53   5   89   15   21   5   73   33   29   74   66
+  12   26   58   4   12   31   35   9   87   73   55   59   53   62   73   23
+  62   33   90   13   90   9   10   66   5   58   44   38   58   22   33   37
+  2   73   36   31   72   30   47   73   15   96   70   59   90   {}   7   21
+  83   {}   47   90   55   36   66   {}   50   {}   84   30   {}   {}   34
+  77   74   {}   58   {}   13   {}   82   93   69   14   62   44   {}   {}
+  30   {}   83   93   {}   {}   {}   84   {}   {}   {}   {}   14   30   82
+  34   34   3   {}   {}   {}   {}   {}   84   {}   {}   {}   99   {}   {}
+  {}   {}   {}   {}   {}   58   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}}
+
+do_execsql_test 1.15.10.2 {
+  SELECT nth_value(b,b+1) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   61   {}   {}   {}   81   {}   91   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   12   {}   {}   {}   22   {}   82   {}   12
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   43   {}   {}   {}   {}
+  {}   33   {}   {}   {}   {}   {}   {}   {}   33   {}   {}   {}   {}   {}
+  {}   4   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   75   {}   {}   {}   {}   {}   {}   15   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   86   {}   26   36   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   37   {}   {}   {}   {}   {}   47   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   98   {}   {}   {}   {}   {}   58   {}   38
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   59   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.15.10.3 {
+  SELECT nth_value(b,b+1) OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   2   2   2   3   4   6   7   8   8   8   9   9   10   11   12   12
+  13   14   15   15   16   16   17   19   21   22   22   23   24   25   26
+  27   29   29   30   30   31   32   33   33   34   34   35   35   36   36
+  37   38   38   39   39   40   41   42   43   44   46   46   47   47   47
+  49   50   51   53   54   55   56   56   56   58   58   58   59   59   59
+  60   61   62   63   65   65   66   68   69   72   72   73   73   74   74
+  75   76   77   78   80   81   81   82   84   84   84   85   85   86   87
+  87   89   89   89   90   90   91   91   91   93   93   95   95   96   96
+  97   98   99   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.15.10.4 {
+  SELECT nth_value(b,b+1) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {80   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   1   1
+  61   61   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   12   12   72   72   72   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   13   13   63   63   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   34   84   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  35   85   85   85   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   36   76   76   76   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   37   37   37
+  87   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   58   58   58   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   39   39   39   89   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.15.10.5 {
+  SELECT nth_value(b,b+1) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {34   2   11   34   81   65   73   84   64   55   12   33   91   42   65
+  35   84   15   95   61   25   53   74   81   72   91   84   33   3   43
+  32   85   56   56   93   85   2   93   43   94   22   75   82   13   12
+  46   6   3   55   25   26   47   83   37   85   43   55   34   75   86   36
+  33   36   36   85   68   14   4   25   33   95   27   16   38   77   55   4
+  58   98   37   15   95   16   38   77   55   16   58   38   36   56   7
+  36   59   89   57   75   86   89   39   98   8   97   15   46   {}   28   9
+  69   49   56   {}   {}   78   16   28   26   36   {}   39   99   29   27
+  78   {}   {}   {}   37   27   98   {}   88   8   {}   28   {}   {}   {}
+  59   37   59   {}   89   {}   {}   47   {}   39   {}   29   29   8   78   9
+  {}   {}   58   59   {}   {}   {}   {}   58   {}   38   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   59   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.15.10.6 {
+  SELECT nth_value(b,b+1) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.15.11.1 {
+  SELECT first_value(b) OVER (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING) FROM t2
+} {89   89   89   89   89   81   96   59   38   68   39   62   91   46   6
+  99   97   27   46   78   54   97   8   67   29   93   84   77   23   16
+  16   93   65   35   47   7   86   74   61   91   85   24   85   43   59
+  12   32   56   3   91   22   90   55   15   28   89   25   47   1   56   40
+  43   56   16   75   36   89   98   76   81   4   94   42   30   78   33
+  29   53   63   2   87   37   80   84   72   41   9   61   73   95   65   13
+  58   96   98   1   21   74   65   35   5   73   11   51   87   41   12   8
+  20   31   31   15   95   22   73   79   88   34   8   11   49   34   90
+  59   96   60   55   75   77   44   2   7   85   57   74   29   70   59   19
+  39   26   26   47   80   90   36   58   47   9   72   72   66   33   93
+  75   64   81   9   23   37   13   12   14   62   91   36   91   33   15
+  34   36   99   3   95   69   58   52   30   50   84   10   84   33   21
+  39   44   58   30   38   34   83}
+
+do_execsql_test 1.15.11.2 {
+  SELECT first_value(b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING) FROM t2
+} {90   90   90   90   90   40   30   80   20   90   60   70   80   90   81
+  81   81   81   81   91   61   91   91   1   81   41   61   1   21   11   51
+  41   31   31   11   62   62   62   62   62   12   32   22   42   2   72
+  12   22   2   72   72   93   93   93   93   93   23   93   43   3   43   33
+  53   63   73   13   73   73   33   93   23   13   54   54   54   54   54
+  84   74   24   4   94   84   74   34   34   44   74   64   14   34   65
+  65   65   65   65   35   85   85   55   15   25   75   95   65   65   35
+  5   15   95   55   75   96   96   96   96   96   46   6   46   16   16   86
+  56   56   56   16   36   76   96   96   26   26   97   97   97   97   97
+  27   97   67   77   47   7   47   87   37   87   77   7   57   47   47   38
+  38   38   38   38   68   78   8   28   98   78   58   98   8   88   8   89
+  89   89   89   89   59   39   99   29   59   89   89   29   9   79   49
+  59   29   59   19   39   9}
+
+do_execsql_test 1.15.11.3 {
+  SELECT first_value(b) OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   2   2   3   3   4   5   6   7   7   7   8   8   8
+  9   9   9   10   11   11   12   12   12   13   13   14   15   15   15   16
+  16   16   17   19   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   30   30   30   31   31   32   33   33   33
+  33   34   34   34   34   35   35   36   36   36   36   37   37   38   38
+  39   39   39   40   41   41   42   43   43   44   44   46   46   47   47
+  47   47   49   50   51   52   53   54   55   55   56   56   56   57   58
+  58   58   58   59   59   59   59   60   61   61   62   62   63   64   65
+  65   65   66   67   68   69   70   72   72   72   73   73   73   74   74
+  74   75   75   75   76   77   77   78   78   79   80   80   81   81   81
+  82   83   84   84   84   84   85   85   85   86   87   87   88   89   89
+  89   90   90   90   91   91   91   91   91   93   93   93   94   95   95
+  95   96   96   96   97   97}
+
+do_execsql_test 1.15.11.4 {
+  SELECT first_value(b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {10   10   10   10   10   20   30   30   30   40   50   60   70   80   1   1
+  1   1   1   1   11   11   21   21   31   31   41   41   51   61   61   81
+  81   81   91   2   2   2   2   2   2   12   12   12   22   22   32   42
+  52   62   62   3   3   3   3   3   3   13   13   23   23   33   33   33
+  33   43   43   53   63   73   73   73   4   4   4   4   4   14   24   34
+  34   34   34   44   44   54   64   74   74   74   84   5   5   5   5   5
+  15   15   15   25   35   35   55   55   65   65   65   75   75   75   85
+  85   6   6   6   6   6   16   16   16   26   26   36   36   36   36   46
+  46   56   56   56   66   76   7   7   7   7   7   7   7   17   27   27   37
+  37   47   47   47   47   57   67   77   77   8   8   8   8   8   8   8   28
+  38   38   58   58   58   58   68   78   9   9   9   9   9   9   9   19   29
+  29   29   39   39   39   49   59   59   59   59   69   79   89}
+
+do_execsql_test 1.15.11.5 {
+  SELECT first_value(b) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {90   90   90   90   90   40   30   80   20   90   60   70   80   90   30
+  50   10   30   81   91   61   91   91   1   81   41   61   1   21   11   51
+  41   31   31   11   81   91   91   21   62   12   32   22   42   2   72
+  12   22   2   72   72   12   62   52   82   93   23   93   43   3   43   33
+  53   63   73   13   73   73   33   93   23   13   33   3   33   83   54
+  84   74   24   4   94   84   74   34   34   44   74   64   14   34   84
+  84   44   34   65   35   85   85   55   15   25   75   95   65   65   35
+  5   15   95   55   75   85   75   15   95   96   46   6   46   16   16   86
+  56   56   56   16   36   76   96   96   26   26   36   66   36   36   97
+  27   97   67   77   47   7   47   87   37   87   77   7   57   47   47   37
+  27   17   7   38   68   78   8   28   98   78   58   98   8   88   8   58
+  58   58   38   89   59   39   99   29   59   89   89   29   9   79   49
+  59   29   59   19   39   9}
+
+do_execsql_test 1.15.11.6 {
+  SELECT first_value(b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING) FROM t2
+} {96   38   68   62   46   6   46   78   54   8   84   16   16   86   74   24
+  12   32   56   22   90   28   56   40   56   16   36   98   76   4   94
+  42   30   78   2   80   84   72   58   96   98   74   12   8   20   22   88
+  34   8   34   90   96   60   44   2   74   70   26   26   80   90   36   58
+  72   72   66   64   12   14   62   36   34   36   58   52   30   50   84
+  10   84   44   58   30   38   34   82   89   81   59   39   91   99   97
+  27   97   67   29   93   77   23   93   65   35   47   7   61   91   85
+  85   43   59   3   91   55   15   89   25   47   1   43   75   89   81   33
+  29   53   63   87   37   41   9   61   73   95   65   13   1   21   65   35
+  5   73   11   51   87   41   31   31   15   95   73   79   11   49   59
+  55   75   77   7   85   57   29   59   19   39   47   47   9   33   93   75
+  81   9   23   37   13   91   91   33   15   99   3   95   69   33   21   39
+  83   27   17   7}
+
+do_execsql_test 1.15.12.1 {
+  SELECT lead(b,b) OVER (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING) FROM t2
+} {96   9   11   89   32   53   91   30   51   56   54   73   22   59   75
+  74   78   8   16   65   15   8   31   87   90   12   32   96   74   76   37
+  85   90   15   35   2   60   36   75   9   51   47   63   51   90   26   42
+  26   8   76   80   90   37   87   56   79   5   87   8   2   39   73   64
+  36   90   72   78   36   73   51   33   20   41   2   26   37   33   8   14
+  33   81   55   1   9   12   39   64   87   72   34   82   21   34   99   62
+  74   41   69   22   75   27   58   8   79   77   26   26   55   {}   29
+  30   7   {}   66   55   2   34   64   {}   33   {}   44   84   {}   {}   95
+  85   19   {}   83   {}   91   {}   {}   9   50   91   33   34   {}   {}
+  84   {}   7   9   {}   {}   {}   44   {}   {}   {}   {}   91   84   {}   95
+  95   52   {}   {}   {}   {}   {}   21   {}   {}   {}   58   {}   {}   {}
+  {}   {}   {}   {}   83   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}}
+
+do_execsql_test 1.15.12.2 {
+  SELECT lead(b,b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   81   {}   {}   {}   21   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   62   {}   {}   {}   12   {}   {}   {}   72
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   53   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   34   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   95   {}   {}   {}   {}   {}   {}   85   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   56   {}   36   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   57   {}   {}   {}   {}   {}   7   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   8   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.15.12.3 {
+  SELECT lead(b,b) OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   3   5   6   7   8   8   9   9   10   11   12   12   13   13
+  14   15   16   16   17   19   20   21   22   23   24   25   26   27   27
+  28   29   30   31   32   33   33   33   34   34   35   36   36   36   37
+  38   39   39   40   41   42   43   43   44   46   47   47   47   49   50
+  52   53   54   55   56   56   57   58   58   58   59   59   59   60   61
+  62   62   64   65   65   67   69   70   72   72   73   74   74   75   75
+  75   77   78   80   81   81   83   84   84   85   85   85   87   88   89
+  89   89   90   90   91   91   91   93   93   94   95   95   96   97   97
+  98   99   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.15.12.4 {
+  SELECT lead(b,b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {80   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   1
+  11   81   81   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   12   12   72   82   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   13   23   73   73   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   34   84   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   35   85   85   95   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   36   86   96   96   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   37   47
+  47   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   58   58   68   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   39   49   59   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.15.12.5 {
+  SELECT lead(b,b) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {34   72   91   74   21   55   23   94   84   95   2   13   61   22   55
+  55   94   85   75   81   65   73   74   21   72   12   94   33   63   73
+  72   96   36   76   3   25   62   3   73   34   12   46   43   93   72   16
+  86   63   15   65   36   77   24   57   25   53   95   34   95   16   97
+  74   97   67   25   98   44   34   65   54   5   68   96   28   47   95
+  34   39   8   38   6   46   96   28   47   95   56   39   99   97   76   8
+  26   9   79   27   95   16   29   {}   58   58   77   85   56   {}   98
+  29   {}   19   96   {}   {}   78   56   98   36   97   {}   89   89   29
+  47   78   {}   {}   {}   38   68   58   {}   58   38   {}   98   {}   {}
+  {}   39   57   9   {}   79   {}   {}   7   {}   {}   {}   9   29   38   78
+  {}   {}   {}   8   39   {}   {}   {}   {}   59   {}   99   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.15.12.6 {
+  SELECT lead(b,b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.15.13.1 {
+  SELECT lag(b,b) OVER (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   38   {}   {}   {}   {}
+  {}   {}   {}   6   {}   {}   {}   {}   {}   81   46   6   {}   {}   {}   {}
+  23   {}   {}   {}   {}   {}   27   {}   {}   {}   35   6   {}   12   {}
+  23   {}   {}   61   84   {}   93   39   47   {}   54   46   96   56   {}
+  16   {}   {}   {}   {}   89   {}   16   43   {}   85   56   29   99   53
+  {}   59   {}   {}   91   59   53   84   99   {}   93   63   47   {}   {}
+  98   33   67   35   75   1   23   13   55   27   75   98   35   73   63   2
+  21   27   13   24   86   23   84   31   20   94   61   65   75   23   36
+  94   55   90   41   77   96   56   29   40   12   89   63   11   5   73
+  79   1   16   28   31   73   5   39   53   63   41   11   40   2   13   33
+  9   29   90   47   72   9   73   30   44   33   74   93   29   74   42   34
+  63   41   34   96   47   77   1   36   74   72   14   36   26   77   9   72
+  64   8   91   31   52   30}
+
+do_execsql_test 1.15.13.2 {
+  SELECT lag(b,b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   61   {}   81   {}   {}   {}   {}
+  1   {}   {}   {}   {}   {}   {}   {}   {}   {}   22   {}   {}   {}   12
+  {}   {}   62   {}   {}   {}   {}   {}   {}   {}   23   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   43   {}   23   {}   {}   {}   {}   {}
+  {}   54   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   75   {}
+  {}   {}   {}   {}   {}   55   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   47   {}   {}   {}   {}
+  {}   27   7   {}   {}   {}   {}   {}   {}   {}   {}   {}   68   {}   8   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   89   {}   {}
+  {}   {}   {}   {}   {}   29   9   {}   {}   {}}
+
+do_execsql_test 1.15.13.3 {
+  SELECT lag(b,b) OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {{}   1   1   1   1   2   2   2   2   2   2   3   3   3   4   4   5   6   6
+  6   7   7   7   7   7   8   8   8   8   8   8   9   9   9   9   9   9   9
+  9   9   9   10   10   10   10   11   11   11   11   11   12   12   12   12
+  13   13   13   13   13   14   15   15   15   15   16   16   16   16   16
+  17   19   20   20   21   21   21   21   22   22   22   22   23   23   23
+  23   23   24   23   24   24   25   26   26   26   26   26   26   26   26
+  26   26   26   27   27   27   27   28   29   29   29   29   30   30   30
+  30   30   30   31   31   31   31   31   32   32   32   32   32   32   31
+  32   33   33   33   33   33   33   34   34   34   34   34   34   34   34
+  35   35   35   35   35   36   36   36   36   36   36   36   37   37   37
+  38   38   38   38   38   38   39   39   39   39   40   40   41   41   42
+  43   42   43   43   43   43   44   44   44   46   46   46   47   47   47
+  47   47}
+
+do_execsql_test 1.15.13.4 {
+  SELECT lag(b,b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  1   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.15.13.5 {
+  SELECT lag(b,b) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   61   80   81   {}   {}   {}   {}
+  1   {}   {}   {}   30   {}   21   90   61   {}   22   {}   11   41   12
+  {}   {}   62   {}   {}   {}   {}   31   {}   50   23   30   21   90   {}
+  {}   62   {}   {}   81   {}   22   43   62   23   32   {}   91   {}   90
+  93   54   {}   {}   90   72   12   22   90   81   83   23   80   20   72
+  43   51   33   80   90   2   34   54   1   20   62   12   13   75   44   30
+  93   91   1   21   55   61   61   13   85   3   65   65   91   73   33   93
+  55   84   62   31   11   65   35   85   33   55   15   12   75   22   3
+  73   65   36   85   43   95   43   13   47   44   65   65   96   36   27
+  7   46   34   94   47   36   73   34   35   73   68   24   8   75   85   75
+  66   34   95   36   84   77   46   34   84   47   89   65   36   16   38
+  76   58   57   29   9   44   56   17}
+
+do_execsql_test 1.15.13.6 {
+  SELECT lag(b,b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.15.14.1 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING) FROM t2
+} {89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
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+  2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
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+  39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
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+  58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
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+  91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
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+  69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  33.21.39.44.58.30.38.34.83.27.82.17.7   21.39.44.58.30.38.34.83.27.82.17.7
+  39.44.58.30.38.34.83.27.82.17.7   44.58.30.38.34.83.27.82.17.7
+  58.30.38.34.83.27.82.17.7   30.38.34.83.27.82.17.7   38.34.83.27.82.17.7
+  34.83.27.82.17.7   83.27.82.17.7}
+
+do_execsql_test 1.15.14.2 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING) FROM t2
+} {90.40.30.80.20.90.60.70.80.90.30.50.10.30
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+  90.40.30.80.20.90.60.70.80.90.30.50.10.30
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30
+  40.30.80.20.90.60.70.80.90.30.50.10.30
+  30.80.20.90.60.70.80.90.30.50.10.30   80.20.90.60.70.80.90.30.50.10.30
+  20.90.60.70.80.90.30.50.10.30   90.60.70.80.90.30.50.10.30
+  60.70.80.90.30.50.10.30   70.80.90.30.50.10.30   80.90.30.50.10.30
+  90.30.50.10.30
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+  81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
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+  81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  61.1.21.11.51.41.31.31.11.81.91.91.21   1.21.11.51.41.31.31.11.81.91.91.21
+  21.11.51.41.31.31.11.81.91.91.21   11.51.41.31.31.11.81.91.91.21
+  51.41.31.31.11.81.91.91.21   41.31.31.11.81.91.91.21   31.31.11.81.91.91.21
+  31.11.81.91.91.21   11.81.91.91.21
+  62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82
+  62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82
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+  62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82
+  12.32.22.42.2.72.12.22.2.72.72.12.62.52.82
+  32.22.42.2.72.12.22.2.72.72.12.62.52.82
+  22.42.2.72.12.22.2.72.72.12.62.52.82   42.2.72.12.22.2.72.72.12.62.52.82
+  2.72.12.22.2.72.72.12.62.52.82   72.12.22.2.72.72.12.62.52.82
+  12.22.2.72.72.12.62.52.82   22.2.72.72.12.62.52.82   2.72.72.12.62.52.82
+  72.72.12.62.52.82   72.12.62.52.82
+  93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83
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+  43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83
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+  53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  63.73.13.73.73.33.93.23.13.33.3.33.83   73.13.73.73.33.93.23.13.33.3.33.83
+  13.73.73.33.93.23.13.33.3.33.83   73.73.33.93.23.13.33.3.33.83
+  73.33.93.23.13.33.3.33.83   33.93.23.13.33.3.33.83   93.23.13.33.3.33.83
+  23.13.33.3.33.83   13.33.3.33.83
+  54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34
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+  84.74.34.34.44.74.64.14.34.84.84.44.34
+  74.34.34.44.74.64.14.34.84.84.44.34   34.34.44.74.64.14.34.84.84.44.34
+  34.44.74.64.14.34.84.84.44.34   44.74.64.14.34.84.84.44.34
+  74.64.14.34.84.84.44.34   64.14.34.84.84.44.34   14.34.84.84.44.34
+  34.84.84.44.34
+  65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
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+  65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  95.65.65.35.5.15.95.55.75.85.75.15.95   65.65.35.5.15.95.55.75.85.75.15.95
+  65.35.5.15.95.55.75.85.75.15.95   35.5.15.95.55.75.85.75.15.95
+  5.15.95.55.75.85.75.15.95   15.95.55.75.85.75.15.95   95.55.75.85.75.15.95
+  55.75.85.75.15.95   75.85.75.15.95
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  56.56.16.36.76.96.96.26.26.36.66.36.36
+  56.16.36.76.96.96.26.26.36.66.36.36   16.36.76.96.96.26.26.36.66.36.36
+  36.76.96.96.26.26.36.66.36.36   76.96.96.26.26.36.66.36.36
+  96.96.26.26.36.66.36.36   96.26.26.36.66.36.36   26.26.36.66.36.36
+  26.36.66.36.36   97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  47.87.37.87.77.7.57.47.47.37.27.17.7   87.37.87.77.7.57.47.47.37.27.17.7
+  37.87.77.7.57.47.47.37.27.17.7   87.77.7.57.47.47.37.27.17.7
+  77.7.57.47.47.37.27.17.7   7.57.47.47.37.27.17.7   57.47.47.37.27.17.7
+  47.47.37.27.17.7   47.37.27.17.7
+  38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38
+  38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38
+  38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38
+  38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38
+  38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38
+  68.78.8.28.98.78.58.98.8.88.8.58.58.58.38
+  78.8.28.98.78.58.98.8.88.8.58.58.58.38
+  8.28.98.78.58.98.8.88.8.58.58.58.38   28.98.78.58.98.8.88.8.58.58.58.38
+  98.78.58.98.8.88.8.58.58.58.38   78.58.98.8.88.8.58.58.58.38
+  58.98.8.88.8.58.58.58.38   98.8.88.8.58.58.58.38   8.88.8.58.58.58.38
+  88.8.58.58.58.38   8.58.58.58.38
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  9.79.49.59.29.59.19.39.9.9.99.69.39   79.49.59.29.59.19.39.9.9.99.69.39
+  49.59.29.59.19.39.9.9.99.69.39   59.29.59.19.39.9.9.99.69.39
+  29.59.19.39.9.9.99.69.39   59.19.39.9.9.99.69.39   19.39.9.9.99.69.39
+  39.9.9.99.69.39   9.9.99.69.39}
+
+do_execsql_test 1.15.14.3 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
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+  74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  94.95.95.95.96.96.96.97.97.98.98.99.99
+  95.95.95.96.96.96.97.97.98.98.99.99   95.95.96.96.96.97.97.98.98.99.99
+  95.96.96.96.97.97.98.98.99.99   96.96.96.97.97.98.98.99.99
+  96.96.97.97.98.98.99.99   96.97.97.98.98.99.99   97.97.98.98.99.99
+  97.98.98.99.99}
+
+do_execsql_test 1.15.14.4 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {10.20.30.30.30.40.50.60.70.80.80.90.90.90
+  10.20.30.30.30.40.50.60.70.80.80.90.90.90
+  10.20.30.30.30.40.50.60.70.80.80.90.90.90
+  10.20.30.30.30.40.50.60.70.80.80.90.90.90
+  10.20.30.30.30.40.50.60.70.80.80.90.90.90
+  20.30.30.30.40.50.60.70.80.80.90.90.90
+  30.30.30.40.50.60.70.80.80.90.90.90   30.30.40.50.60.70.80.80.90.90.90
+  30.40.50.60.70.80.80.90.90.90   40.50.60.70.80.80.90.90.90
+  50.60.70.80.80.90.90.90   60.70.80.80.90.90.90   70.80.80.90.90.90
+  80.80.90.90.90
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  41.41.51.61.61.81.81.81.91.91.91.91.91
+  41.51.61.61.81.81.81.91.91.91.91.91   51.61.61.81.81.81.91.91.91.91.91
+  61.61.81.81.81.91.91.91.91.91   61.81.81.81.91.91.91.91.91
+  81.81.81.91.91.91.91.91   81.81.91.91.91.91.91   81.91.91.91.91.91
+  91.91.91.91.91   2.2.12.12.12.22.22.32.42.52.62.62.72.72.72.82
+  2.2.12.12.12.22.22.32.42.52.62.62.72.72.72.82
+  2.2.12.12.12.22.22.32.42.52.62.62.72.72.72.82
+  2.2.12.12.12.22.22.32.42.52.62.62.72.72.72.82
+  2.2.12.12.12.22.22.32.42.52.62.62.72.72.72.82
+  2.12.12.12.22.22.32.42.52.62.62.72.72.72.82
+  12.12.12.22.22.32.42.52.62.62.72.72.72.82
+  12.12.22.22.32.42.52.62.62.72.72.72.82
+  12.22.22.32.42.52.62.62.72.72.72.82   22.22.32.42.52.62.62.72.72.72.82
+  22.32.42.52.62.62.72.72.72.82   32.42.52.62.62.72.72.72.82
+  42.52.62.62.72.72.72.82   52.62.62.72.72.72.82   62.62.72.72.72.82
+  62.72.72.72.82
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  3.13.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  13.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  33.33.43.43.53.63.73.73.73.83.93.93.93
+  33.43.43.53.63.73.73.73.83.93.93.93   43.43.53.63.73.73.73.83.93.93.93
+  43.53.63.73.73.73.83.93.93.93   53.63.73.73.73.83.93.93.93
+  63.73.73.73.83.93.93.93   73.73.73.83.93.93.93   73.73.83.93.93.93
+  73.83.93.93.93   4.14.24.34.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  4.14.24.34.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  4.14.24.34.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  4.14.24.34.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  4.14.24.34.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  14.24.34.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  24.34.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  34.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  34.44.44.54.64.74.74.74.84.84.84.84.94
+  44.44.54.64.74.74.74.84.84.84.84.94   44.54.64.74.74.74.84.84.84.84.94
+  54.64.74.74.74.84.84.84.84.94   64.74.74.74.84.84.84.84.94
+  74.74.74.84.84.84.84.94   74.74.84.84.84.84.94   74.84.84.84.84.94
+  84.84.84.84.94
+  5.15.15.15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  5.15.15.15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  5.15.15.15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  5.15.15.15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  5.15.15.15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  15.15.15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  15.15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  55.65.65.65.75.75.75.85.85.85.95.95.95
+  65.65.65.75.75.75.85.85.85.95.95.95   65.65.75.75.75.85.85.85.95.95.95
+  65.75.75.75.85.85.85.95.95.95   75.75.75.85.85.85.95.95.95
+  75.75.85.85.85.95.95.95   75.85.85.85.95.95.95   85.85.85.95.95.95
+  85.85.95.95.95
+  6.16.16.16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  6.16.16.16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  6.16.16.16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  6.16.16.16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  6.16.16.16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  16.16.16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  16.16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  36.36.46.46.56.56.56.66.76.86.96.96.96
+  36.46.46.56.56.56.66.76.86.96.96.96   46.46.56.56.56.66.76.86.96.96.96
+  46.56.56.56.66.76.86.96.96.96   56.56.56.66.76.86.96.96.96
+  56.56.66.76.86.96.96.96   56.66.76.86.96.96.96   66.76.86.96.96.96
+  76.86.96.96.96   7.7.7.17.27.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  7.7.7.17.27.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  7.7.7.17.27.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  7.7.7.17.27.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  7.7.7.17.27.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  7.7.17.27.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  7.17.27.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  17.27.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  27.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  37.47.47.47.47.57.67.77.77.87.87.97.97
+  47.47.47.47.57.67.77.77.87.87.97.97   47.47.47.57.67.77.77.87.87.97.97
+  47.47.57.67.77.77.87.87.97.97   47.57.67.77.77.87.87.97.97
+  57.67.77.77.87.87.97.97   67.77.77.87.87.97.97   77.77.87.87.97.97
+  77.87.87.97.97   8.8.8.28.38.38.58.58.58.58.68.78.78.88.98.98
+  8.8.8.28.38.38.58.58.58.58.68.78.78.88.98.98
+  8.8.8.28.38.38.58.58.58.58.68.78.78.88.98.98
+  8.8.8.28.38.38.58.58.58.58.68.78.78.88.98.98
+  8.8.8.28.38.38.58.58.58.58.68.78.78.88.98.98
+  8.8.28.38.38.58.58.58.58.68.78.78.88.98.98
+  8.28.38.38.58.58.58.58.68.78.78.88.98.98
+  28.38.38.58.58.58.58.68.78.78.88.98.98
+  38.38.58.58.58.58.68.78.78.88.98.98   38.58.58.58.58.68.78.78.88.98.98
+  58.58.58.58.68.78.78.88.98.98   58.58.58.68.78.78.88.98.98
+  58.58.68.78.78.88.98.98   58.68.78.78.88.98.98   68.78.78.88.98.98
+  78.78.88.98.98
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  39.49.59.59.59.59.69.79.89.89.89.99.99
+  49.59.59.59.59.69.79.89.89.89.99.99   59.59.59.59.69.79.89.89.89.99.99
+  59.59.59.69.79.89.89.89.99.99   59.59.69.79.89.89.89.99.99
+  59.69.79.89.89.89.99.99   69.79.89.89.89.99.99   79.89.89.89.99.99
+  89.89.89.99.99}
+
+do_execsql_test 1.15.14.5 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
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+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
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+  27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  9.79.49.59.29.59.19.39.9.9.99.69.39   79.49.59.29.59.19.39.9.9.99.69.39
+  49.59.29.59.19.39.9.9.99.69.39   59.29.59.19.39.9.9.99.69.39
+  29.59.19.39.9.9.99.69.39   59.19.39.9.9.99.69.39   19.39.9.9.99.69.39
+  39.9.9.99.69.39   9.9.99.69.39}
+
+do_execsql_test 1.15.14.6 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING) FROM t2
+} {96   38   68   62   46   6   46   78   54   8   84   16   16   86   74   24
+  12   32   56   22   90   28   56   40   56   16   36   98   76   4   94
+  42   30   78   2   80   84   72   58   96   98   74   12   8   20   22   88
+  34   8   34   90   96   60   44   2   74   70   26   26   80   90   36   58
+  72   72   66   64   12   14   62   36   34   36   58   52   30   50   84
+  10   84   44   58   30   38   34   82   89   81   59   39   91   99   97
+  27   97   67   29   93   77   23   93   65   35   47   7   61   91   85
+  85   43   59   3   91   55   15   89   25   47   1   43   75   89   81   33
+  29   53   63   87   37   41   9   61   73   95   65   13   1   21   65   35
+  5   73   11   51   87   41   31   31   15   95   73   79   11   49   59
+  55   75   77   7   85   57   29   59   19   39   47   47   9   33   93   75
+  81   9   23   37   13   91   91   33   15   99   3   95   69   33   21   39
+  83   27   17   7}
+
+do_execsql_test 1.15.14.7 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (win1 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING) 
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a)
+    ORDER BY 1
+} {1   1   10   11   11   12   12   12   13   13   14   15   15   15   16   16
+  16   17   19   2   2   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   3   3   30   30   30   31   31   32   33   33
+  33   33   34   34   34   34   35   35   36   36   36   36   37   37   38
+  38   39   39   39   4   40   41   41   42   43   43   44   44   46   46
+  47   47   47   47   49   5   50   51   52   53   54   55   55   56   56
+  56   57   58   58   58   58   59   59   59   59   6   60   61   61   62
+  62   63   64   65   65   65   66   67   68   69   7   7   7   70   72   72
+  72   73   73   73   74   74   74   75   75   75   76   77   77   78   78
+  79   8   8   8   80   80   81   81   81   82   83   84   84   84   84   85
+  85   85   86   87   87   88   89   89   89   9   9   9   90   90   90   91
+  91   91   91   91   93   93   93   94   95   95   95   96   96   96   97
+  97   98   98   99   99}
+
+do_execsql_test 1.15.14.8 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (win1 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING) 
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a ORDER BY b%10)
+    ORDER BY 1
+} {1   1   10   11   11   12   12   12   13   13   14   15   15   15   16   16
+  16   17   19   2   2   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   3   3   30   30   30   31   31   32   33   33
+  33   33   34   34   34   34   35   35   36   36   36   36   37   37   38
+  38   39   39   39   4   40   41   41   42   43   43   44   44   46   46
+  47   47   47   47   49   5   50   51   52   53   54   55   55   56   56
+  56   57   58   58   58   58   59   59   59   59   6   60   61   61   62
+  62   63   64   65   65   65   66   67   68   69   7   7   7   70   72   72
+  72   73   73   73   74   74   74   75   75   75   76   77   77   78   78
+  79   8   8   8   80   80   81   81   81   82   83   84   84   84   84   85
+  85   85   86   87   87   88   89   89   89   9   9   9   90   90   90   91
+  91   91   91   91   93   93   93   94   95   95   95   96   96   96   97
+  97   98   98   99   99}
+
+do_execsql_test 1.15.14.9 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER win2
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a ORDER BY b%10),
+           win2 AS (win1 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING)
+    ORDER BY 1
+} {1   1   10   11   11   12   12   12   13   13   14   15   15   15   16   16
+  16   17   19   2   2   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   3   3   30   30   30   31   31   32   33   33
+  33   33   34   34   34   34   35   35   36   36   36   36   37   37   38
+  38   39   39   39   4   40   41   41   42   43   43   44   44   46   46
+  47   47   47   47   49   5   50   51   52   53   54   55   55   56   56
+  56   57   58   58   58   58   59   59   59   59   6   60   61   61   62
+  62   63   64   65   65   65   66   67   68   69   7   7   7   70   72   72
+  72   73   73   73   74   74   74   75   75   75   76   77   77   78   78
+  79   8   8   8   80   80   81   81   81   82   83   84   84   84   84   85
+  85   85   86   87   87   88   89   89   89   9   9   9   90   90   90   91
+  91   91   91   91   93   93   93   94   95   95   95   96   96   96   97
+  97   98   98   99   99}
+
+do_execsql_test 1.15.15.1 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE a%2=0) OVER win FROM t2
+    WINDOW win AS (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING)
+} {191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  190 96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  189 96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  188 38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  187 38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  186 39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  185 39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  184 91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  183 91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  182 6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  181 6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  180 97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  179 97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  178 46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  177 46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
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+  22 69.52.50.10.33.39.58.38.83.82.7   21 69.52.50.10.33.39.58.38.83.82.7
+  20 52.50.10.33.39.58.38.83.82.7   19 52.50.10.33.39.58.38.83.82.7
+  18 50.10.33.39.58.38.83.82.7   17 50.10.33.39.58.38.83.82.7
+  16 10.33.39.58.38.83.82.7   15 10.33.39.58.38.83.82.7
+  14 33.39.58.38.83.82.7   13 33.39.58.38.83.82.7   12 39.58.38.83.82.7
+  11 39.58.38.83.82.7   10 58.38.83.82.7   9 58.38.83.82.7   8 38.83.82.7
+  7 38.83.82.7   6 83.82.7   5 83.82.7}
+
+do_execsql_test 1.15.15.2 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE 0=1) OVER win FROM t2
+    WINDOW win AS (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING)
+} {191 {}   191 {}   191 {}   191 {}   191 {}   190 {}   189 {}   188 {}
+  187 {}   186 {}   185 {}   184 {}   183 {}   182 {}   181 {}   180 {}
+  179 {}   178 {}   177 {}   176 {}   175 {}   174 {}   173 {}   172 {}
+  171 {}   170 {}   169 {}   168 {}   167 {}   166 {}   165 {}   164 {}
+  163 {}   162 {}   161 {}   160 {}   159 {}   158 {}   157 {}   156 {}
+  155 {}   154 {}   153 {}   152 {}   151 {}   150 {}   149 {}   148 {}
+  147 {}   146 {}   145 {}   144 {}   143 {}   142 {}   141 {}   140 {}
+  139 {}   138 {}   137 {}   136 {}   135 {}   134 {}   133 {}   132 {}
+  131 {}   130 {}   129 {}   128 {}   127 {}   126 {}   125 {}   124 {}
+  123 {}   122 {}   121 {}   120 {}   119 {}   118 {}   117 {}   116 {}
+  115 {}   114 {}   113 {}   112 {}   111 {}   110 {}   109 {}   108 {}
+  107 {}   106 {}   105 {}   104 {}   103 {}   102 {}   101 {}   100 {}
+  99 {}   98 {}   97 {}   96 {}   95 {}   94 {}   93 {}   92 {}   91 {}
+  90 {}   89 {}   88 {}   87 {}   86 {}   85 {}   84 {}   83 {}   82 {}
+  81 {}   80 {}   79 {}   78 {}   77 {}   76 {}   75 {}   74 {}   73 {}
+  72 {}   71 {}   70 {}   69 {}   68 {}   67 {}   66 {}   65 {}   64 {}
+  63 {}   62 {}   61 {}   60 {}   59 {}   58 {}   57 {}   56 {}   55 {}
+  54 {}   53 {}   52 {}   51 {}   50 {}   49 {}   48 {}   47 {}   46 {}
+  45 {}   44 {}   43 {}   42 {}   41 {}   40 {}   39 {}   38 {}   37 {}
+  36 {}   35 {}   34 {}   33 {}   32 {}   31 {}   30 {}   29 {}   28 {}
+  27 {}   26 {}   25 {}   24 {}   23 {}   22 {}   21 {}   20 {}   19 {}
+  18 {}   17 {}   16 {}   15 {}   14 {}   13 {}   12 {}   11 {}   10 {}
+  9 {}   8 {}   7 {}   6 {}   5 {}}
+
+do_execsql_test 1.15.15.3 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE 1=0) OVER win FROM t2
+    WINDOW win AS (PARTITION BY (a%10) ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING)
+} {20 {}   20 {}   20 {}   20 {}   20 {}   19 {}   18 {}   17 {}   16 {}
+  15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}
+  5 {}   19 {}   19 {}   19 {}   19 {}   19 {}   18 {}   17 {}   16 {}
+  15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}
+  5 {}   19 {}   19 {}   19 {}   19 {}   19 {}   18 {}   17 {}   16 {}
+  15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}
+  5 {}   19 {}   19 {}   19 {}   19 {}   19 {}   18 {}   17 {}   16 {}
+  15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}
+  5 {}   19 {}   19 {}   19 {}   19 {}   19 {}   18 {}   17 {}   16 {}
+  15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}
+  5 {}   19 {}   19 {}   19 {}   19 {}   19 {}   18 {}   17 {}   16 {}
+  15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}
+  5 {}   19 {}   19 {}   19 {}   19 {}   19 {}   18 {}   17 {}   16 {}
+  15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}
+  5 {}   19 {}   19 {}   19 {}   19 {}   19 {}   18 {}   17 {}   16 {}
+  15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}
+  5 {}   19 {}   19 {}   19 {}   19 {}   19 {}   18 {}   17 {}   16 {}
+  15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}
+  5 {}   19 {}   19 {}   19 {}   19 {}   19 {}   18 {}   17 {}   16 {}
+  15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}
+  5 {}}
+
+do_execsql_test 1.15.15.4 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE a%2=0) OVER win FROM t2
+    WINDOW win AS (PARTITION BY (a%10) ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING)
+} {20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  19 6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  18 29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  17 47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  16 59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  15 28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  14 75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  13 78.72.98.87.73.96.74.90.75.91.69.39.7
+  12 72.98.87.73.96.74.90.75.91.69.39.7   11 98.87.73.96.74.90.75.91.69.39.7
+  10 87.73.96.74.90.75.91.69.39.7   9 73.96.74.90.75.91.69.39.7
+  8 96.74.90.75.91.69.39.7   7 74.90.75.91.69.39.7   6 90.75.91.69.39.7
+  5 75.91.69.39.7   19 {}   19 {}   19 {}   19 {}   19 {}   18 {}   17 {}
+  16 {}   15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}
+  6 {}   5 {}   19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  18 97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  17 84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  16 86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  15 32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  14 25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  13 89.29.9.21.12.88.55.70.58.81.91.52.58
+  12 29.9.21.12.88.55.70.58.81.91.52.58   11 9.21.12.88.55.70.58.81.91.52.58
+  10 21.12.88.55.70.58.81.91.52.58   9 12.88.55.70.58.81.91.52.58
+  8 88.55.70.58.81.91.52.58   7 55.70.58.81.91.52.58   6 70.58.81.91.52.58
+  5 58.81.91.52.58   19 {}   19 {}   19 {}   19 {}   19 {}   18 {}   17 {}
+  16 {}   15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}
+  6 {}   5 {}   19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  18 46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  17 23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  16 61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  15 3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  14 1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  13 76.63.73.65.20.8.77.19.9.23.15.50.38
+  12 63.73.65.20.8.77.19.9.23.15.50.38   11 73.65.20.8.77.19.9.23.15.50.38
+  10 65.20.8.77.19.9.23.15.50.38   9 20.8.77.19.9.23.15.50.38
+  8 8.77.19.9.23.15.50.38   7 77.19.9.23.15.50.38   6 19.9.23.15.50.38
+  5 9.23.15.50.38   19 {}   19 {}   19 {}   19 {}   19 {}   18 {}   17 {}
+  16 {}   15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}
+  6 {}   5 {}   19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  18 54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  17 16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  16 85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  15 22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  14 40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  13 4.87.65.5.31.49.2.26.72.13.36.10.83
+  12 87.65.5.31.49.2.26.72.13.36.10.83   11 65.5.31.49.2.26.72.13.36.10.83
+  10 5.31.49.2.26.72.13.36.10.83   9 31.49.2.26.72.13.36.10.83
+  8 49.2.26.72.13.36.10.83   7 2.26.72.13.36.10.83   6 26.72.13.36.10.83
+  5 72.13.36.10.83   19 {}   19 {}   19 {}   19 {}   19 {}   18 {}   17 {}
+  16 {}   15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}
+  6 {}   5 {}   19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  18 8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  17 65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  16 85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  15 55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  14 56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  13 42.80.58.11.95.90.85.47.33.14.3.33.82
+  12 80.58.11.95.90.85.47.33.14.3.33.82   11 58.11.95.90.85.47.33.14.3.33.82
+  10 11.95.90.85.47.33.14.3.33.82   9 95.90.85.47.33.14.3.33.82
+  8 90.85.47.33.14.3.33.82   7 85.47.33.14.3.33.82   6 47.33.14.3.33.82
+  5 33.14.3.33.82   19 {}   19 {}   19 {}   19 {}   19 {}   18 {}   17 {}
+  16 {}   15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}
+  6 {}   5 {}}
+
+do_execsql_test 1.16.2.1 {
+  SELECT max(b) OVER ( ORDER BY a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   95   95   84   84   84   84   84   84   84   84   83   83
+  83   83   83   83   83   83   83   82   82   17   7}
+
+do_execsql_test 1.16.2.2 {
+  SELECT min(b) OVER ( ORDER BY a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   7   7
+  7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7
+  7}
+
+do_execsql_test 1.16.3.1 {
+  SELECT row_number() OVER ( ORDER BY a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.16.3.2 {
+  SELECT row_number() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.16.3.3 {
+  SELECT row_number() OVER ( ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.16.4.1 {
+  SELECT dense_rank() OVER ( ORDER BY a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.16.4.2 {
+  SELECT dense_rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.16.4.3 {
+  SELECT dense_rank() OVER ( ORDER BY b ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   2   2   3   3   4   5   6   7   7   7   8   8   8   9   9   9   10
+  11   11   12   12   12   13   13   14   15   15   15   16   16   16   17
+  18   19   20   20   21   21   22   22   23   24   25   25   26   26   27
+  28   28   28   29   29   29   30   30   31   32   32   32   32   33   33
+  33   33   34   34   35   35   35   35   36   36   37   37   38   38   38
+  39   40   40   41   42   42   43   43   44   44   45   45   45   45   46
+  47   48   49   50   51   52   52   53   53   53   54   55   55   55   55
+  56   56   56   56   57   58   58   59   59   60   61   62   62   62   63
+  64   65   66   67   68   68   68   69   69   69   70   70   70   71   71
+  71   72   73   73   74   74   75   76   76   77   77   77   78   79   80
+  80   80   80   81   81   81   82   83   83   84   85   85   85   86   86
+  86   87   87   87   87   87   88   88   88   89   90   90   90   91   91
+  91   92   92   93   93   94   94}
+
+do_execsql_test 1.16.4.4 {
+  SELECT dense_rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   3   3   4   5   6   7   8   8   9   9   9   1   1   2   2   3
+  3   4   4   5   5   6   7   7   8   8   8   9   9   9   9   9   1   1   2
+  2   2   3   3   4   5   6   7   7   8   8   8   9   1   1   2   2   3   3
+  4   4   4   4   5   5   6   7   8   8   8   9   10   10   10   1   2   3
+  4   4   4   4   5   5   6   7   8   8   8   9   9   9   9   10   1   2   2
+  2   3   4   4   5   5   6   6   6   7   7   7   8   8   8   9   9   9   1
+  2   2   2   3   3   4   4   4   4   5   5   6   6   6   7   8   9   10   10
+  10   1   1   1   2   3   3   4   4   5   5   5   5   6   7   8   8   9   9
+  10   10   1   1   1   2   3   3   4   4   4   4   5   6   6   7   8   8   1
+  1   1   2   3   3   3   4   4   4   5   6   6   6   6   7   8   9   9   9
+  10   10}
+
+do_execsql_test 1.16.4.5 {
+  SELECT dense_rank() OVER ( ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   4   4   4   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5   5   5   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   6   6   6   6
+  6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   7   7
+  7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7
+  8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8
+  8   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   10   10
+  10   10   10   10   10   10   10   10   10   10   10   10   10   10   10
+  10   10   10   10   10}
+
+do_execsql_test 1.16.4.6 {
+  SELECT dense_rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   3   3   3   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   4   4   4   4   4   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   5   5   5   5   5   5
+  5   5   5   5   5   5   5   5   5   5   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5
+  5}
+
+do_execsql_test 1.16.5.1 {
+  SELECT rank() OVER ( ORDER BY a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.16.5.2 {
+  SELECT rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.16.5.3 {
+  SELECT rank() OVER ( ORDER BY b ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   3   3   5   5   7   8   9   10   10   10   13   13   13   16   16
+  16   19   20   20   22   22   22   25   25   27   28   28   28   31   31
+  31   34   35   36   37   37   39   39   41   41   43   44   45   45   47
+  47   49   50   50   50   53   53   53   56   56   58   59   59   59   59
+  63   63   63   63   67   67   69   69   69   69   73   73   75   75   77
+  77   77   80   81   81   83   84   84   86   86   88   88   90   90   90
+  90   94   95   96   97   98   99   100   100   102   102   102   105   106
+  106   106   106   110   110   110   110   114   115   115   117   117   119
+  120   121   121   121   124   125   126   127   128   129   129   129   132
+  132   132   135   135   135   138   138   138   141   142   142   144   144
+  146   147   147   149   149   149   152   153   154   154   154   154   158
+  158   158   161   162   162   164   165   165   165   168   168   168   171
+  171   171   171   171   176   176   176   179   180   180   180   183   183
+  183   186   186   188   188   190   190}
+
+do_execsql_test 1.16.5.4 {
+  SELECT rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   3   3   6   7   8   9   10   10   12   12   12   1   1   3   3
+  5   5   7   7   9   9   11   12   12   14   14   14   17   17   17   17
+  17   1   1   3   3   3   6   6   8   9   10   11   11   13   13   13   16
+  1   1   3   3   5   5   7   7   7   7   11   11   13   14   15   15   15
+  18   19   19   19   1   2   3   4   4   4   4   8   8   10   11   12   12
+  12   15   15   15   15   19   1   2   2   2   5   6   6   8   8   10   10
+  10   13   13   13   16   16   16   19   19   19   1   2   2   2   5   5   7
+  7   7   7   11   11   13   13   13   16   17   18   19   19   19   1   1
+  1   4   5   5   7   7   9   9   9   9   13   14   15   15   17   17   19
+  19   1   1   1   4   5   5   7   7   7   7   11   12   12   14   15   15
+  1   1   1   4   5   5   5   8   8   8   11   12   12   12   12   16   17
+  18   18   18   21   21}
+
+do_execsql_test 1.16.5.5 {
+  SELECT rank() OVER ( ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   15   15   15   15
+  15   15   15   15   15   15   15   15   15   15   15   15   15   15   15
+  15   15   36   36   36   36   36   36   36   36   36   36   36   36   36
+  36   36   36   52   52   52   52   52   52   52   52   52   52   52   52
+  52   52   52   52   52   52   52   52   52   73   73   73   73   73   73
+  73   73   73   73   73   73   73   73   73   73   73   73   73   92   92
+  92   92   92   92   92   92   92   92   92   92   92   92   92   92   92
+  92   92   92   92   113   113   113   113   113   113   113   113   113
+  113   113   113   113   113   113   113   113   113   113   113   113   134
+  134   134   134   134   134   134   134   134   134   134   134   134   134
+  134   134   134   134   134   134   154   154   154   154   154   154   154
+  154   154   154   154   154   154   154   154   154   170   170   170   170
+  170   170   170   170   170   170   170   170   170   170   170   170   170
+  170   170   170   170   170}
+
+do_execsql_test 1.16.5.6 {
+  SELECT rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   15   15   15   15
+  15   15   15   15   15   15   15   15   15   15   15   15   31   31   31
+  31   31   31   31   31   31   31   31   31   31   31   31   31   31   31
+  31   50   50   50   50   50   50   50   50   50   50   50   50   50   50
+  50   50   50   50   50   50   50   71   71   71   71   71   71   71   71
+  71   71   71   71   71   71   71   71   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   22   22   22   22   22   22
+  22   22   22   22   22   22   22   22   22   22   22   22   22   22   22
+  43   43   43   43   43   43   43   43   43   43   43   43   43   43   43
+  43   43   43   43   43   43   64   64   64   64   64   64   64   64   64
+  64   64   64   64   64   64   64   64   64   64   64   84   84   84   84
+  84   84   84   84   84   84   84   84   84   84   84   84   84   84   84
+  84   84   84}
+
+do_execsql_test 1.16.6.1 {
+  SELECT 
+      row_number() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ),
+      rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ),
+      dense_rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING )
+    FROM t2
+} {1 1 1   2 1 1   3 1 1   4 1 1   5 1 1   6 1 1   7 1 1   8 1 1   9 1 1
+  10 1 1   11 1 1   12 1 1   13 1 1   14 1 1   15 15 2   16 15 2   17 15 2
+  18 15 2   19 15 2   20 15 2   21 15 2   22 15 2   23 15 2   24 15 2
+  25 15 2   26 15 2   27 15 2   28 15 2   29 15 2   30 15 2   31 31 3
+  32 31 3   33 31 3   34 31 3   35 31 3   36 31 3   37 31 3   38 31 3
+  39 31 3   40 31 3   41 31 3   42 31 3   43 31 3   44 31 3   45 31 3
+  46 31 3   47 31 3   48 31 3   49 31 3   50 50 4   51 50 4   52 50 4
+  53 50 4   54 50 4   55 50 4   56 50 4   57 50 4   58 50 4   59 50 4
+  60 50 4   61 50 4   62 50 4   63 50 4   64 50 4   65 50 4   66 50 4
+  67 50 4   68 50 4   69 50 4   70 50 4   71 71 5   72 71 5   73 71 5
+  74 71 5   75 71 5   76 71 5   77 71 5   78 71 5   79 71 5   80 71 5
+  81 71 5   82 71 5   83 71 5   84 71 5   85 71 5   86 71 5   1 1 1   2 1 1
+  3 1 1   4 1 1   5 1 1   6 1 1   7 1 1   8 1 1   9 1 1   10 1 1   11 1 1
+  12 1 1   13 1 1   14 1 1   15 1 1   16 1 1   17 1 1   18 1 1   19 1 1
+  20 1 1   21 1 1   22 22 2   23 22 2   24 22 2   25 22 2   26 22 2   27 22 2
+  28 22 2   29 22 2   30 22 2   31 22 2   32 22 2   33 22 2   34 22 2
+  35 22 2   36 22 2   37 22 2   38 22 2   39 22 2   40 22 2   41 22 2
+  42 22 2   43 43 3   44 43 3   45 43 3   46 43 3   47 43 3   48 43 3
+  49 43 3   50 43 3   51 43 3   52 43 3   53 43 3   54 43 3   55 43 3
+  56 43 3   57 43 3   58 43 3   59 43 3   60 43 3   61 43 3   62 43 3
+  63 43 3   64 64 4   65 64 4   66 64 4   67 64 4   68 64 4   69 64 4
+  70 64 4   71 64 4   72 64 4   73 64 4   74 64 4   75 64 4   76 64 4
+  77 64 4   78 64 4   79 64 4   80 64 4   81 64 4   82 64 4   83 64 4
+  84 84 5   85 84 5   86 84 5   87 84 5   88 84 5   89 84 5   90 84 5
+  91 84 5   92 84 5   93 84 5   94 84 5   95 84 5   96 84 5   97 84 5
+  98 84 5   99 84 5   100 84 5   101 84 5   102 84 5   103 84 5   104 84 5
+  105 84 5}
+
+
+do_test 1.16.7.1 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0053 0.0105 0.0158 0.0211 0.0263 0.0316 0.0368 0.0421 0.0474 0.0526 0.0579 0.0632 0.0684 0.0737 0.0789 0.0842 0.0895 0.0947 0.1000 0.1053 0.1105 0.1158 0.1211 0.1263 0.1316 0.1368 0.1421 0.1474 0.1526 0.1579 0.1632 0.1684 0.1737 0.1789 0.1842 0.1895 0.1947 0.2000 0.2053 0.2105 0.2158 0.2211 0.2263 0.2316 0.2368 0.2421 0.2474 0.2526 0.2579 0.2632 0.2684 0.2737 0.2789 0.2842 0.2895 0.2947 0.3000 0.3053 0.3105 0.3158 0.3211 0.3263 0.3316 0.3368 0.3421 0.3474 0.3526 0.3579 0.3632 0.3684 0.3737 0.3789 0.3842 0.3895 0.3947 0.4000 0.4053 0.4105 0.4158 0.4211 0.4263 0.4316 0.4368 0.4421 0.4474 0.4526 0.4579 0.4632 0.4684 0.4737 0.4789 0.4842 0.4895 0.4947 0.5000 0.5053 0.5105 0.5158 0.5211 0.5263 0.5316 0.5368 0.5421 0.5474 0.5526 0.5579 0.5632 0.5684 0.5737 0.5789 0.5842 0.5895 0.5947 0.6000 0.6053 0.6105 0.6158 0.6211 0.6263 0.6316 0.6368 0.6421 0.6474 0.6526 0.6579 0.6632 0.6684 0.6737 0.6789 0.6842 0.6895 0.6947 0.7000 0.7053 0.7105 0.7158 0.7211 0.7263 0.7316 0.7368 0.7421 0.7474 0.7526 0.7579 0.7632 0.7684 0.7737 0.7789 0.7842 0.7895 0.7947 0.8000 0.8053 0.8105 0.8158 0.8211 0.8263 0.8316 0.8368 0.8421 0.8474 0.8526 0.8579 0.8632 0.8684 0.8737 0.8789 0.8842 0.8895 0.8947 0.9000 0.9053 0.9105 0.9158 0.9211 0.9263 0.9316 0.9368 0.9421 0.9474 0.9526 0.9579 0.9632 0.9684 0.9737 0.9789 0.9842 0.9895 0.9947 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.16.7.2 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0769 0.1538 0.2308 0.3077 0.3846 0.4615 0.5385 0.6154 0.6923 0.7692 0.8462 0.9231 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0667 0.1333 0.2000 0.2667 0.3333 0.4000 0.4667 0.5333 0.6000 0.6667 0.7333 0.8000 0.8667 0.9333 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0556 0.1111 0.1667 0.2222 0.2778 0.3333 0.3889 0.4444 0.5000 0.5556 0.6111 0.6667 0.7222 0.7778 0.8333 0.8889 0.9444 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0526 0.1053 0.1579 0.2105 0.2632 0.3158 0.3684 0.4211 0.4737 0.5263 0.5789 0.6316 0.6842 0.7368 0.7895 0.8421 0.8947 0.9474 1.0000 0.0000 0.0667 0.1333 0.2000 0.2667 0.3333 0.4000 0.4667 0.5333 0.6000 0.6667 0.7333 0.8000 0.8667 0.9333 1.0000 0.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.16.7.3 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY b ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0105 0.0105 0.0211 0.0211 0.0316 0.0368 0.0421 0.0474 0.0474 0.0474 0.0632 0.0632 0.0632 0.0789 0.0789 0.0789 0.0947 0.1000 0.1000 0.1105 0.1105 0.1105 0.1263 0.1263 0.1368 0.1421 0.1421 0.1421 0.1579 0.1579 0.1579 0.1737 0.1789 0.1842 0.1895 0.1895 0.2000 0.2000 0.2105 0.2105 0.2211 0.2263 0.2316 0.2316 0.2421 0.2421 0.2526 0.2579 0.2579 0.2579 0.2737 0.2737 0.2737 0.2895 0.2895 0.3000 0.3053 0.3053 0.3053 0.3053 0.3263 0.3263 0.3263 0.3263 0.3474 0.3474 0.3579 0.3579 0.3579 0.3579 0.3789 0.3789 0.3895 0.3895 0.4000 0.4000 0.4000 0.4158 0.4211 0.4211 0.4316 0.4368 0.4368 0.4474 0.4474 0.4579 0.4579 0.4684 0.4684 0.4684 0.4684 0.4895 0.4947 0.5000 0.5053 0.5105 0.5158 0.5211 0.5211 0.5316 0.5316 0.5316 0.5474 0.5526 0.5526 0.5526 0.5526 0.5737 0.5737 0.5737 0.5737 0.5947 0.6000 0.6000 0.6105 0.6105 0.6211 0.6263 0.6316 0.6316 0.6316 0.6474 0.6526 0.6579 0.6632 0.6684 0.6737 0.6737 0.6737 0.6895 0.6895 0.6895 0.7053 0.7053 0.7053 0.7211 0.7211 0.7211 0.7368 0.7421 0.7421 0.7526 0.7526 0.7632 0.7684 0.7684 0.7789 0.7789 0.7789 0.7947 0.8000 0.8053 0.8053 0.8053 0.8053 0.8263 0.8263 0.8263 0.8421 0.8474 0.8474 0.8579 0.8632 0.8632 0.8632 0.8789 0.8789 0.8789 0.8947 0.8947 0.8947 0.8947 0.8947 0.9211 0.9211 0.9211 0.9368 0.9421 0.9421 0.9421 0.9579 0.9579 0.9579 0.9737 0.9737 0.9842 0.9842 0.9947 0.9947}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.16.7.4 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0769 0.1538 0.1538 0.1538 0.3846 0.4615 0.5385 0.6154 0.6923 0.6923 0.8462 0.8462 0.8462 0.0000 0.0000 0.1000 0.1000 0.2000 0.2000 0.3000 0.3000 0.4000 0.4000 0.5000 0.5500 0.5500 0.6500 0.6500 0.6500 0.8000 0.8000 0.8000 0.8000 0.8000 0.0000 0.0000 0.1333 0.1333 0.1333 0.3333 0.3333 0.4667 0.5333 0.6000 0.6667 0.6667 0.8000 0.8000 0.8000 1.0000 0.0000 0.0000 0.1000 0.1000 0.2000 0.2000 0.3000 0.3000 0.3000 0.3000 0.5000 0.5000 0.6000 0.6500 0.7000 0.7000 0.7000 0.8500 0.9000 0.9000 0.9000 0.0000 0.0556 0.1111 0.1667 0.1667 0.1667 0.1667 0.3889 0.3889 0.5000 0.5556 0.6111 0.6111 0.6111 0.7778 0.7778 0.7778 0.7778 1.0000 0.0000 0.0500 0.0500 0.0500 0.2000 0.2500 0.2500 0.3500 0.3500 0.4500 0.4500 0.4500 0.6000 0.6000 0.6000 0.7500 0.7500 0.7500 0.9000 0.9000 0.9000 0.0000 0.0500 0.0500 0.0500 0.2000 0.2000 0.3000 0.3000 0.3000 0.3000 0.5000 0.5000 0.6000 0.6000 0.6000 0.7500 0.8000 0.8500 0.9000 0.9000 0.9000 0.0000 0.0000 0.0000 0.1579 0.2105 0.2105 0.3158 0.3158 0.4211 0.4211 0.4211 0.4211 0.6316 0.6842 0.7368 0.7368 0.8421 0.8421 0.9474 0.9474 0.0000 0.0000 0.0000 0.2000 0.2667 0.2667 0.4000 0.4000 0.4000 0.4000 0.6667 0.7333 0.7333 0.8667 0.9333 0.9333 0.0000 0.0000 0.0000 0.1429 0.1905 0.1905 0.1905 0.3333 0.3333 0.3333 0.4762 0.5238 0.5238 0.5238 0.5238 0.7143 0.7619 0.8095 0.8095 0.8095 0.9524 0.9524}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.16.7.5 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.16.7.6 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER (PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.16.8.1 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0052 0.0105 0.0157 0.0209 0.0262 0.0314 0.0366 0.0419 0.0471 0.0524 0.0576 0.0628 0.0681 0.0733 0.0785 0.0838 0.0890 0.0942 0.0995 0.1047 0.1099 0.1152 0.1204 0.1257 0.1309 0.1361 0.1414 0.1466 0.1518 0.1571 0.1623 0.1675 0.1728 0.1780 0.1832 0.1885 0.1937 0.1990 0.2042 0.2094 0.2147 0.2199 0.2251 0.2304 0.2356 0.2408 0.2461 0.2513 0.2565 0.2618 0.2670 0.2723 0.2775 0.2827 0.2880 0.2932 0.2984 0.3037 0.3089 0.3141 0.3194 0.3246 0.3298 0.3351 0.3403 0.3455 0.3508 0.3560 0.3613 0.3665 0.3717 0.3770 0.3822 0.3874 0.3927 0.3979 0.4031 0.4084 0.4136 0.4188 0.4241 0.4293 0.4346 0.4398 0.4450 0.4503 0.4555 0.4607 0.4660 0.4712 0.4764 0.4817 0.4869 0.4921 0.4974 0.5026 0.5079 0.5131 0.5183 0.5236 0.5288 0.5340 0.5393 0.5445 0.5497 0.5550 0.5602 0.5654 0.5707 0.5759 0.5812 0.5864 0.5916 0.5969 0.6021 0.6073 0.6126 0.6178 0.6230 0.6283 0.6335 0.6387 0.6440 0.6492 0.6545 0.6597 0.6649 0.6702 0.6754 0.6806 0.6859 0.6911 0.6963 0.7016 0.7068 0.7120 0.7173 0.7225 0.7277 0.7330 0.7382 0.7435 0.7487 0.7539 0.7592 0.7644 0.7696 0.7749 0.7801 0.7853 0.7906 0.7958 0.8010 0.8063 0.8115 0.8168 0.8220 0.8272 0.8325 0.8377 0.8429 0.8482 0.8534 0.8586 0.8639 0.8691 0.8743 0.8796 0.8848 0.8901 0.8953 0.9005 0.9058 0.9110 0.9162 0.9215 0.9267 0.9319 0.9372 0.9424 0.9476 0.9529 0.9581 0.9634 0.9686 0.9738 0.9791 0.9843 0.9895 0.9948 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.16.8.2 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0714 0.1429 0.2143 0.2857 0.3571 0.4286 0.5000 0.5714 0.6429 0.7143 0.7857 0.8571 0.9286 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0625 0.1250 0.1875 0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250 0.6875 0.7500 0.8125 0.8750 0.9375 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0526 0.1053 0.1579 0.2105 0.2632 0.3158 0.3684 0.4211 0.4737 0.5263 0.5789 0.6316 0.6842 0.7368 0.7895 0.8421 0.8947 0.9474 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0625 0.1250 0.1875 0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250 0.6875 0.7500 0.8125 0.8750 0.9375 1.0000 0.0455 0.0909 0.1364 0.1818 0.2273 0.2727 0.3182 0.3636 0.4091 0.4545 0.5000 0.5455 0.5909 0.6364 0.6818 0.7273 0.7727 0.8182 0.8636 0.9091 0.9545 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.16.8.3 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY b ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0105 0.0105 0.0209 0.0209 0.0314 0.0314 0.0366 0.0419 0.0471 0.0628 0.0628 0.0628 0.0785 0.0785 0.0785 0.0942 0.0942 0.0942 0.0995 0.1099 0.1099 0.1257 0.1257 0.1257 0.1361 0.1361 0.1414 0.1571 0.1571 0.1571 0.1728 0.1728 0.1728 0.1780 0.1832 0.1885 0.1990 0.1990 0.2094 0.2094 0.2199 0.2199 0.2251 0.2304 0.2408 0.2408 0.2513 0.2513 0.2565 0.2723 0.2723 0.2723 0.2880 0.2880 0.2880 0.2984 0.2984 0.3037 0.3246 0.3246 0.3246 0.3246 0.3455 0.3455 0.3455 0.3455 0.3560 0.3560 0.3770 0.3770 0.3770 0.3770 0.3874 0.3874 0.3979 0.3979 0.4136 0.4136 0.4136 0.4188 0.4293 0.4293 0.4346 0.4450 0.4450 0.4555 0.4555 0.4660 0.4660 0.4869 0.4869 0.4869 0.4869 0.4921 0.4974 0.5026 0.5079 0.5131 0.5183 0.5288 0.5288 0.5445 0.5445 0.5445 0.5497 0.5707 0.5707 0.5707 0.5707 0.5916 0.5916 0.5916 0.5916 0.5969 0.6073 0.6073 0.6178 0.6178 0.6230 0.6283 0.6440 0.6440 0.6440 0.6492 0.6545 0.6597 0.6649 0.6702 0.6859 0.6859 0.6859 0.7016 0.7016 0.7016 0.7173 0.7173 0.7173 0.7330 0.7330 0.7330 0.7382 0.7487 0.7487 0.7592 0.7592 0.7644 0.7749 0.7749 0.7906 0.7906 0.7906 0.7958 0.8010 0.8220 0.8220 0.8220 0.8220 0.8377 0.8377 0.8377 0.8429 0.8534 0.8534 0.8586 0.8743 0.8743 0.8743 0.8901 0.8901 0.8901 0.9162 0.9162 0.9162 0.9162 0.9162 0.9319 0.9319 0.9319 0.9372 0.9529 0.9529 0.9529 0.9686 0.9686 0.9686 0.9791 0.9791 0.9895 0.9895 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.16.8.4 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0714 0.1429 0.3571 0.3571 0.3571 0.4286 0.5000 0.5714 0.6429 0.7857 0.7857 1.0000 1.0000 1.0000 0.0952 0.0952 0.1905 0.1905 0.2857 0.2857 0.3810 0.3810 0.4762 0.4762 0.5238 0.6190 0.6190 0.7619 0.7619 0.7619 1.0000 1.0000 1.0000 1.0000 1.0000 0.1250 0.1250 0.3125 0.3125 0.3125 0.4375 0.4375 0.5000 0.5625 0.6250 0.7500 0.7500 0.9375 0.9375 0.9375 1.0000 0.0952 0.0952 0.1905 0.1905 0.2857 0.2857 0.4762 0.4762 0.4762 0.4762 0.5714 0.5714 0.6190 0.6667 0.8095 0.8095 0.8095 0.8571 1.0000 1.0000 1.0000 0.0526 0.1053 0.1579 0.3684 0.3684 0.3684 0.3684 0.4737 0.4737 0.5263 0.5789 0.7368 0.7368 0.7368 0.9474 0.9474 0.9474 0.9474 1.0000 0.0476 0.1905 0.1905 0.1905 0.2381 0.3333 0.3333 0.4286 0.4286 0.5714 0.5714 0.5714 0.7143 0.7143 0.7143 0.8571 0.8571 0.8571 1.0000 1.0000 1.0000 0.0476 0.1905 0.1905 0.1905 0.2857 0.2857 0.4762 0.4762 0.4762 0.4762 0.5714 0.5714 0.7143 0.7143 0.7143 0.7619 0.8095 0.8571 1.0000 1.0000 1.0000 0.1500 0.1500 0.1500 0.2000 0.3000 0.3000 0.4000 0.4000 0.6000 0.6000 0.6000 0.6000 0.6500 0.7000 0.8000 0.8000 0.9000 0.9000 1.0000 1.0000 0.1875 0.1875 0.1875 0.2500 0.3750 0.3750 0.6250 0.6250 0.6250 0.6250 0.6875 0.8125 0.8125 0.8750 1.0000 1.0000 0.1364 0.1364 0.1364 0.1818 0.3182 0.3182 0.3182 0.4545 0.4545 0.4545 0.5000 0.6818 0.6818 0.6818 0.6818 0.7273 0.7727 0.9091 0.9091 0.9091 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.16.8.5 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.16.8.6 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.16.8.1 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(100) OVER ( ORDER BY a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 88.0000 89.0000 89.0000 90.0000 90.0000 91.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.16.8.2 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(101) OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 22.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.16.8.3 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(102) OVER ( ORDER BY b,a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 88.0000 89.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.16.8.4 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(103) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 22.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.16.8.5 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(104) OVER ( ORDER BY b%10,a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000 103.0000 104.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.16.8.6 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(105) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.16.8.7 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(105) OVER ( ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 88.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000 103.0000 104.0000 105.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+do_execsql_test 1.16.9.1 {
+  SELECT last_value(a+b) OVER ( ORDER BY a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207}
+
+do_execsql_test 1.16.9.2 {
+  SELECT last_value(a+b) OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {223   223   223   223   223   223   223   223   223   223   223   223   223
+  223   210   210   210   210   210   210   210   210   210   210   210   210
+  210   210   210   210   210   210   210   210   210   280   280   280   280
+  280   280   280   280   280   280   280   280   280   280   280   280   279
+  279   279   279   279   279   279   279   279   279   279   279   279   279
+  279   279   279   279   279   279   279   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  274   274   274   274   274   274   274   274   274   274   274   274   274
+  274   274   274   274   274   274   274   274   212   212   212   212   212
+  212   212   212   212   212   212   212   212   212   212   212   212   212
+  212   212   212   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   232   232   232
+  232   232   232   232   232   232   232   232   232   232   232   232   232
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229}
+
+do_execsql_test 1.16.9.3 {
+  SELECT last_value(a+b) OVER ( ORDER BY b,a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276}
+
+do_execsql_test 1.16.9.4 {
+  SELECT last_value(a+b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {240   240   240   240   240   240   240   240   240   240   240   240   240
+  240   263   263   263   263   263   263   263   263   263   263   263   263
+  263   263   263   263   263   263   263   263   263   280   280   280   280
+  280   280   280   280   280   280   280   280   280   280   280   280   252
+  252   252   252   252   252   252   252   252   252   252   252   252   252
+  252   252   252   252   252   252   252   171   171   171   171   171   171
+  171   171   171   171   171   171   171   171   171   171   171   171   171
+  274   274   274   274   274   274   274   274   274   274   274   274   274
+  274   274   274   274   274   274   274   274   226   226   226   226   226
+  226   226   226   226   226   226   226   226   226   226   226   226   226
+  226   226   226   124   124   124   124   124   124   124   124   124   124
+  124   124   124   124   124   124   124   124   124   124   198   198   198
+  198   198   198   198   198   198   198   198   198   198   198   198   198
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276}
+
+do_execsql_test 1.16.9.5 {
+  SELECT last_value(a+b) OVER ( ORDER BY b%10,a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229}
+
+do_execsql_test 1.16.9.6 {
+  SELECT last_value(a+b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING) FROM t2
+} {108   52   83   79   65   26   70   103   80   36   116   51   52   128
+  117   71   63   84   109   78   147   88   121   106   124   85   107   171
+  150   80   171   120   109   158   87   168   173   162   156   195   198
+  177   124   121   134   141   210   157   132   161   218   226   191   179
+  138   214   212   172   173   229   240   187   210   227   228   223   225
+  179   182   231   207   209   212   239   234   213   234   269   196   271
+  235   250   223   232   229   280   99   92   72   55   109   120   119
+  50   124   96   59   124   110   57   130   103   74   87   48   105   136
+  131   133   92   109   57   146   113   74   150   87   110   65   110
+  145   161   156   114   111   136   147   173   124   132   101   154   167
+  190   161   110   102   123   169   140   111   180   119   160   197   152
+  146   147   132   213   193   200   136   175   188   187   208   211   144
+  223   196   170   202   163   184   195   200   163   191   252   235   243
+  172   187   202   179   261   263   206   189   276   181   274   249   221
+  210   229   279   224   216   207}
+
+do_execsql_test 1.16.10.1 {
+  SELECT nth_value(b,b+1) OVER (ORDER BY a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING) FROM t2
+} {96   9   11   89   32   53   91   30   51   56   54   73   22   59   75
+  74   78   8   16   65   15   8   31   87   90   12   32   96   74   76   37
+  85   90   15   35   2   60   36   75   9   51   47   63   51   90   26   42
+  26   8   76   80   90   37   87   56   79   5   87   8   2   39   73   64
+  36   90   72   78   36   73   51   33   20   41   2   26   37   33   8   14
+  33   81   55   1   9   12   39   64   87   72   34   82   21   34   99   62
+  74   41   69   22   75   27   58   8   79   77   26   26   55   {}   29
+  30   7   {}   66   55   2   34   64   {}   33   {}   44   84   {}   {}   95
+  85   19   {}   83   {}   91   {}   {}   9   50   91   33   34   {}   {}
+  84   {}   7   9   {}   {}   {}   44   {}   {}   {}   {}   91   84   {}   95
+  95   52   {}   {}   {}   {}   {}   21   {}   {}   {}   58   {}   {}   {}
+  {}   {}   {}   {}   83   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}}
+
+do_execsql_test 1.16.10.2 {
+  SELECT nth_value(b,b+1) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   81   {}   {}   {}   21   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   62   {}   {}   {}   12   {}   {}   {}   72
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   53   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   34   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   95   {}   {}   {}   {}   {}   {}   85   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   56   {}   36   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   57   {}   {}   {}   {}   {}   7   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   8   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.16.10.3 {
+  SELECT nth_value(b,b+1) OVER ( ORDER BY b,a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   3   5   6   7   8   8   9   9   10   11   12   12   13   13
+  14   15   16   16   17   19   20   21   22   23   24   25   26   27   27
+  28   29   30   31   32   33   33   33   34   34   35   36   36   36   37
+  38   39   39   40   41   42   43   43   44   46   47   47   47   49   50
+  52   53   54   55   56   56   57   58   58   58   59   59   59   60   61
+  62   62   64   65   65   67   69   70   72   72   73   74   74   75   75
+  75   77   78   80   81   81   83   84   84   85   85   85   87   88   89
+  89   89   90   90   91   91   91   93   93   94   95   95   96   97   97
+  98   99   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.16.10.4 {
+  SELECT nth_value(b,b+1) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {80   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   1
+  11   81   81   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   12   12   72   82   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   13   23   73   73   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   34   84   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   35   85   85   95   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   36   86   96   96   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   37   47
+  47   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   58   58   68   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   39   49   59   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.16.10.5 {
+  SELECT nth_value(b,b+1) OVER ( ORDER BY b%10,a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {34   72   91   74   21   55   23   94   84   95   2   13   61   22   55
+  55   94   85   75   81   65   73   74   21   72   12   94   33   63   73
+  72   96   36   76   3   25   62   3   73   34   12   46   43   93   72   16
+  86   63   15   65   36   77   24   57   25   53   95   34   95   16   97
+  74   97   67   25   98   44   34   65   54   5   68   96   28   47   95
+  34   39   8   38   6   46   96   28   47   95   56   39   99   97   76   8
+  26   9   79   27   95   16   29   {}   58   58   77   85   56   {}   98
+  29   {}   19   96   {}   {}   78   56   98   36   97   {}   89   89   29
+  47   78   {}   {}   {}   38   68   58   {}   58   38   {}   98   {}   {}
+  {}   39   57   9   {}   79   {}   {}   7   {}   {}   {}   9   29   38   78
+  {}   {}   {}   8   39   {}   {}   {}   {}   59   {}   99   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.16.10.6 {
+  SELECT nth_value(b,b+1) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.16.11.1 {
+  SELECT first_value(b) OVER (ORDER BY a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING) FROM t2
+} {89   81   96   59   38   68   39   62   91   46   6   99   97   27   46
+  78   54   97   8   67   29   93   84   77   23   16   16   93   65   35
+  47   7   86   74   61   91   85   24   85   43   59   12   32   56   3   91
+  22   90   55   15   28   89   25   47   1   56   40   43   56   16   75
+  36   89   98   76   81   4   94   42   30   78   33   29   53   63   2   87
+  37   80   84   72   41   9   61   73   95   65   13   58   96   98   1   21
+  74   65   35   5   73   11   51   87   41   12   8   20   31   31   15   95
+  22   73   79   88   34   8   11   49   34   90   59   96   60   55   75
+  77   44   2   7   85   57   74   29   70   59   19   39   26   26   47   80
+  90   36   58   47   9   72   72   66   33   93   75   64   81   9   23   37
+  13   12   14   62   91   36   91   33   15   34   36   99   3   95   69
+  58   52   30   50   84   10   84   33   21   39   44   58   30   38   34
+  83   27   82   17   7}
+
+do_execsql_test 1.16.11.2 {
+  SELECT first_value(b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING) FROM t2
+} {90   40   30   80   20   90   60   70   80   90   30   50   10   30   81
+  91   61   91   91   1   81   41   61   1   21   11   51   41   31   31   11
+  81   91   91   21   62   12   32   22   42   2   72   12   22   2   72   72
+  12   62   52   82   93   23   93   43   3   43   33   53   63   73   13
+  73   73   33   93   23   13   33   3   33   83   54   84   74   24   4   94
+  84   74   34   34   44   74   64   14   34   84   84   44   34   65   35
+  85   85   55   15   25   75   95   65   65   35   5   15   95   55   75
+  85   75   15   95   96   46   6   46   16   16   86   56   56   56   16
+  36   76   96   96   26   26   36   66   36   36   97   27   97   67   77
+  47   7   47   87   37   87   77   7   57   47   47   37   27   17   7   38
+  68   78   8   28   98   78   58   98   8   88   8   58   58   58   38   89
+  59   39   99   29   59   89   89   29   9   79   49   59   29   59   19
+  39   9   9   99   69   39}
+
+do_execsql_test 1.16.11.3 {
+  SELECT first_value(b) OVER ( ORDER BY b,a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   2   2   3   3   4   5   6   7   7   7   8   8   8   9   9   9   10
+  11   11   12   12   12   13   13   14   15   15   15   16   16   16   17
+  19   20   21   21   22   22   23   23   24   25   26   26   27   27   28
+  29   29   29   30   30   30   31   31   32   33   33   33   33   34   34
+  34   34   35   35   36   36   36   36   37   37   38   38   39   39   39
+  40   41   41   42   43   43   44   44   46   46   47   47   47   47   49
+  50   51   52   53   54   55   55   56   56   56   57   58   58   58   58
+  59   59   59   59   60   61   61   62   62   63   64   65   65   65   66
+  67   68   69   70   72   72   72   73   73   73   74   74   74   75   75
+  75   76   77   77   78   78   79   80   80   81   81   81   82   83   84
+  84   84   84   85   85   85   86   87   87   88   89   89   89   90   90
+  90   91   91   91   91   91   93   93   93   94   95   95   95   96   96
+  96   97   97   98   98   99   99}
+
+do_execsql_test 1.16.11.4 {
+  SELECT first_value(b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {10   20   30   30   30   40   50   60   70   80   80   90   90   90   1   1
+  11   11   21   21   31   31   41   41   51   61   61   81   81   81   91
+  91   91   91   91   2   2   12   12   12   22   22   32   42   52   62   62
+  72   72   72   82   3   3   13   13   23   23   33   33   33   33   43   43
+  53   63   73   73   73   83   93   93   93   4   14   24   34   34   34
+  34   44   44   54   64   74   74   74   84   84   84   84   94   5   15
+  15   15   25   35   35   55   55   65   65   65   75   75   75   85   85
+  85   95   95   95   6   16   16   16   26   26   36   36   36   36   46
+  46   56   56   56   66   76   86   96   96   96   7   7   7   17   27   27
+  37   37   47   47   47   47   57   67   77   77   87   87   97   97   8   8
+  8   28   38   38   58   58   58   58   68   78   78   88   98   98   9   9
+  9   19   29   29   29   39   39   39   49   59   59   59   59   69   79
+  89   89   89   99   99}
+
+do_execsql_test 1.16.11.5 {
+  SELECT first_value(b) OVER ( ORDER BY b%10,a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {90   40   30   80   20   90   60   70   80   90   30   50   10   30   81
+  91   61   91   91   1   81   41   61   1   21   11   51   41   31   31   11
+  81   91   91   21   62   12   32   22   42   2   72   12   22   2   72   72
+  12   62   52   82   93   23   93   43   3   43   33   53   63   73   13
+  73   73   33   93   23   13   33   3   33   83   54   84   74   24   4   94
+  84   74   34   34   44   74   64   14   34   84   84   44   34   65   35
+  85   85   55   15   25   75   95   65   65   35   5   15   95   55   75
+  85   75   15   95   96   46   6   46   16   16   86   56   56   56   16
+  36   76   96   96   26   26   36   66   36   36   97   27   97   67   77
+  47   7   47   87   37   87   77   7   57   47   47   37   27   17   7   38
+  68   78   8   28   98   78   58   98   8   88   8   58   58   58   38   89
+  59   39   99   29   59   89   89   29   9   79   49   59   29   59   19
+  39   9   9   99   69   39}
+
+do_execsql_test 1.16.11.6 {
+  SELECT first_value(b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING) FROM t2
+} {96   38   68   62   46   6   46   78   54   8   84   16   16   86   74   24
+  12   32   56   22   90   28   56   40   56   16   36   98   76   4   94
+  42   30   78   2   80   84   72   58   96   98   74   12   8   20   22   88
+  34   8   34   90   96   60   44   2   74   70   26   26   80   90   36   58
+  72   72   66   64   12   14   62   36   34   36   58   52   30   50   84
+  10   84   44   58   30   38   34   82   89   81   59   39   91   99   97
+  27   97   67   29   93   77   23   93   65   35   47   7   61   91   85
+  85   43   59   3   91   55   15   89   25   47   1   43   75   89   81   33
+  29   53   63   87   37   41   9   61   73   95   65   13   1   21   65   35
+  5   73   11   51   87   41   31   31   15   95   73   79   11   49   59
+  55   75   77   7   85   57   29   59   19   39   47   47   9   33   93   75
+  81   9   23   37   13   91   91   33   15   99   3   95   69   33   21   39
+  83   27   17   7}
+
+do_execsql_test 1.16.12.1 {
+  SELECT lead(b,b) OVER (ORDER BY a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING) FROM t2
+} {96   9   11   89   32   53   91   30   51   56   54   73   22   59   75
+  74   78   8   16   65   15   8   31   87   90   12   32   96   74   76   37
+  85   90   15   35   2   60   36   75   9   51   47   63   51   90   26   42
+  26   8   76   80   90   37   87   56   79   5   87   8   2   39   73   64
+  36   90   72   78   36   73   51   33   20   41   2   26   37   33   8   14
+  33   81   55   1   9   12   39   64   87   72   34   82   21   34   99   62
+  74   41   69   22   75   27   58   8   79   77   26   26   55   {}   29
+  30   7   {}   66   55   2   34   64   {}   33   {}   44   84   {}   {}   95
+  85   19   {}   83   {}   91   {}   {}   9   50   91   33   34   {}   {}
+  84   {}   7   9   {}   {}   {}   44   {}   {}   {}   {}   91   84   {}   95
+  95   52   {}   {}   {}   {}   {}   21   {}   {}   {}   58   {}   {}   {}
+  {}   {}   {}   {}   83   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}}
+
+do_execsql_test 1.16.12.2 {
+  SELECT lead(b,b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   81   {}   {}   {}   21   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   62   {}   {}   {}   12   {}   {}   {}   72
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   53   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   34   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   95   {}   {}   {}   {}   {}   {}   85   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   56   {}   36   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   57   {}   {}   {}   {}   {}   7   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   8   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.16.12.3 {
+  SELECT lead(b,b) OVER ( ORDER BY b,a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   3   5   6   7   8   8   9   9   10   11   12   12   13   13
+  14   15   16   16   17   19   20   21   22   23   24   25   26   27   27
+  28   29   30   31   32   33   33   33   34   34   35   36   36   36   37
+  38   39   39   40   41   42   43   43   44   46   47   47   47   49   50
+  52   53   54   55   56   56   57   58   58   58   59   59   59   60   61
+  62   62   64   65   65   67   69   70   72   72   73   74   74   75   75
+  75   77   78   80   81   81   83   84   84   85   85   85   87   88   89
+  89   89   90   90   91   91   91   93   93   94   95   95   96   97   97
+  98   99   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.16.12.4 {
+  SELECT lead(b,b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {80   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   1
+  11   81   81   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   12   12   72   82   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   13   23   73   73   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   34   84   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   35   85   85   95   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   36   86   96   96   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   37   47
+  47   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   58   58   68   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   39   49   59   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.16.12.5 {
+  SELECT lead(b,b) OVER ( ORDER BY b%10,a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {34   72   91   74   21   55   23   94   84   95   2   13   61   22   55
+  55   94   85   75   81   65   73   74   21   72   12   94   33   63   73
+  72   96   36   76   3   25   62   3   73   34   12   46   43   93   72   16
+  86   63   15   65   36   77   24   57   25   53   95   34   95   16   97
+  74   97   67   25   98   44   34   65   54   5   68   96   28   47   95
+  34   39   8   38   6   46   96   28   47   95   56   39   99   97   76   8
+  26   9   79   27   95   16   29   {}   58   58   77   85   56   {}   98
+  29   {}   19   96   {}   {}   78   56   98   36   97   {}   89   89   29
+  47   78   {}   {}   {}   38   68   58   {}   58   38   {}   98   {}   {}
+  {}   39   57   9   {}   79   {}   {}   7   {}   {}   {}   9   29   38   78
+  {}   {}   {}   8   39   {}   {}   {}   {}   59   {}   99   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.16.12.6 {
+  SELECT lead(b,b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.16.13.1 {
+  SELECT lag(b,b) OVER (ORDER BY a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   38   {}   {}   {}   {}
+  {}   {}   {}   6   {}   {}   {}   {}   {}   81   46   6   {}   {}   {}   {}
+  23   {}   {}   {}   {}   {}   27   {}   {}   {}   35   6   {}   12   {}
+  23   {}   {}   61   84   {}   93   39   47   {}   54   46   96   56   {}
+  16   {}   {}   {}   {}   89   {}   16   43   {}   85   56   29   99   53
+  {}   59   {}   {}   91   59   53   84   99   {}   93   63   47   {}   {}
+  98   33   67   35   75   1   23   13   55   27   75   98   35   73   63   2
+  21   27   13   24   86   23   84   31   20   94   61   65   75   23   36
+  94   55   90   41   77   96   56   29   40   12   89   63   11   5   73
+  79   1   16   28   31   73   5   39   53   63   41   11   40   2   13   33
+  9   29   90   47   72   9   73   30   44   33   74   93   29   74   42   34
+  63   41   34   96   47   77   1   36   74   72   14   36   26   77   9   72
+  64   8   91   31   52   30}
+
+do_execsql_test 1.16.13.2 {
+  SELECT lag(b,b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   61   {}   81   {}   {}   {}   {}
+  1   {}   {}   {}   {}   {}   {}   {}   {}   {}   22   {}   {}   {}   12
+  {}   {}   62   {}   {}   {}   {}   {}   {}   {}   23   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   43   {}   23   {}   {}   {}   {}   {}
+  {}   54   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   75   {}
+  {}   {}   {}   {}   {}   55   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   47   {}   {}   {}   {}
+  {}   27   7   {}   {}   {}   {}   {}   {}   {}   {}   {}   68   {}   8   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   89   {}   {}
+  {}   {}   {}   {}   {}   29   9   {}   {}   {}}
+
+do_execsql_test 1.16.13.3 {
+  SELECT lag(b,b) OVER ( ORDER BY b,a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {{}   1   1   1   1   2   2   2   2   2   2   3   3   3   4   4   5   6   6
+  6   7   7   7   7   7   8   8   8   8   8   8   9   9   9   9   9   9   9
+  9   9   9   10   10   10   10   11   11   11   11   11   12   12   12   12
+  13   13   13   13   13   14   15   15   15   15   16   16   16   16   16
+  17   19   20   20   21   21   21   21   22   22   22   22   23   23   23
+  23   23   24   23   24   24   25   26   26   26   26   26   26   26   26
+  26   26   26   27   27   27   27   28   29   29   29   29   30   30   30
+  30   30   30   31   31   31   31   31   32   32   32   32   32   32   31
+  32   33   33   33   33   33   33   34   34   34   34   34   34   34   34
+  35   35   35   35   35   36   36   36   36   36   36   36   37   37   37
+  38   38   38   38   38   38   39   39   39   39   40   40   41   41   42
+  43   42   43   43   43   43   44   44   44   46   46   46   47   47   47
+  47   47}
+
+do_execsql_test 1.16.13.4 {
+  SELECT lag(b,b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  1   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.16.13.5 {
+  SELECT lag(b,b) OVER ( ORDER BY b%10,a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   61   80   81   {}   {}   {}   {}
+  1   {}   {}   {}   30   {}   21   90   61   {}   22   {}   11   41   12
+  {}   {}   62   {}   {}   {}   {}   31   {}   50   23   30   21   90   {}
+  {}   62   {}   {}   81   {}   22   43   62   23   32   {}   91   {}   90
+  93   54   {}   {}   90   72   12   22   90   81   83   23   80   20   72
+  43   51   33   80   90   2   34   54   1   20   62   12   13   75   44   30
+  93   91   1   21   55   61   61   13   85   3   65   65   91   73   33   93
+  55   84   62   31   11   65   35   85   33   55   15   12   75   22   3
+  73   65   36   85   43   95   43   13   47   44   65   65   96   36   27
+  7   46   34   94   47   36   73   34   35   73   68   24   8   75   85   75
+  66   34   95   36   84   77   46   34   84   47   89   65   36   16   38
+  76   58   57   29   9   44   56   17}
+
+do_execsql_test 1.16.13.6 {
+  SELECT lag(b,b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.16.14.1 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (ORDER BY a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING) FROM t2
+} {89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
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+  55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  33.21.39.44.58.30.38.34.83.27.82.17.7   21.39.44.58.30.38.34.83.27.82.17.7
+  39.44.58.30.38.34.83.27.82.17.7   44.58.30.38.34.83.27.82.17.7
+  58.30.38.34.83.27.82.17.7   30.38.34.83.27.82.17.7   38.34.83.27.82.17.7
+  34.83.27.82.17.7   83.27.82.17.7   27.82.17.7   82.17.7   17.7   7}
+
+do_execsql_test 1.16.14.2 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING) FROM t2
+} {90.40.30.80.20.90.60.70.80.90.30.50.10.30
+  40.30.80.20.90.60.70.80.90.30.50.10.30
+  30.80.20.90.60.70.80.90.30.50.10.30   80.20.90.60.70.80.90.30.50.10.30
+  20.90.60.70.80.90.30.50.10.30   90.60.70.80.90.30.50.10.30
+  60.70.80.90.30.50.10.30   70.80.90.30.50.10.30   80.90.30.50.10.30
+  90.30.50.10.30   30.50.10.30   50.10.30   10.30   30
+  81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  61.1.21.11.51.41.31.31.11.81.91.91.21   1.21.11.51.41.31.31.11.81.91.91.21
+  21.11.51.41.31.31.11.81.91.91.21   11.51.41.31.31.11.81.91.91.21
+  51.41.31.31.11.81.91.91.21   41.31.31.11.81.91.91.21   31.31.11.81.91.91.21
+  31.11.81.91.91.21   11.81.91.91.21   81.91.91.21   91.91.21   91.21   21
+  62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82
+  12.32.22.42.2.72.12.22.2.72.72.12.62.52.82
+  32.22.42.2.72.12.22.2.72.72.12.62.52.82
+  22.42.2.72.12.22.2.72.72.12.62.52.82   42.2.72.12.22.2.72.72.12.62.52.82
+  2.72.12.22.2.72.72.12.62.52.82   72.12.22.2.72.72.12.62.52.82
+  12.22.2.72.72.12.62.52.82   22.2.72.72.12.62.52.82   2.72.72.12.62.52.82
+  72.72.12.62.52.82   72.12.62.52.82   12.62.52.82   62.52.82   52.82   82
+  93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  33.53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  63.73.13.73.73.33.93.23.13.33.3.33.83   73.13.73.73.33.93.23.13.33.3.33.83
+  13.73.73.33.93.23.13.33.3.33.83   73.73.33.93.23.13.33.3.33.83
+  73.33.93.23.13.33.3.33.83   33.93.23.13.33.3.33.83   93.23.13.33.3.33.83
+  23.13.33.3.33.83   13.33.3.33.83   33.3.33.83   3.33.83   33.83   83
+  54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34
+  84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34
+  74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34
+  24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34
+  4.94.84.74.34.34.44.74.64.14.34.84.84.44.34
+  94.84.74.34.34.44.74.64.14.34.84.84.44.34
+  84.74.34.34.44.74.64.14.34.84.84.44.34
+  74.34.34.44.74.64.14.34.84.84.44.34   34.34.44.74.64.14.34.84.84.44.34
+  34.44.74.64.14.34.84.84.44.34   44.74.64.14.34.84.84.44.34
+  74.64.14.34.84.84.44.34   64.14.34.84.84.44.34   14.34.84.84.44.34
+  34.84.84.44.34   84.84.44.34   84.44.34   44.34   34
+  65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  95.65.65.35.5.15.95.55.75.85.75.15.95   65.65.35.5.15.95.55.75.85.75.15.95
+  65.35.5.15.95.55.75.85.75.15.95   35.5.15.95.55.75.85.75.15.95
+  5.15.95.55.75.85.75.15.95   15.95.55.75.85.75.15.95   95.55.75.85.75.15.95
+  55.75.85.75.15.95   75.85.75.15.95   85.75.15.95   75.15.95   15.95   95
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  56.56.16.36.76.96.96.26.26.36.66.36.36
+  56.16.36.76.96.96.26.26.36.66.36.36   16.36.76.96.96.26.26.36.66.36.36
+  36.76.96.96.26.26.36.66.36.36   76.96.96.26.26.36.66.36.36
+  96.96.26.26.36.66.36.36   96.26.26.36.66.36.36   26.26.36.66.36.36
+  26.36.66.36.36   36.66.36.36   66.36.36   36.36   36
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  47.87.37.87.77.7.57.47.47.37.27.17.7   87.37.87.77.7.57.47.47.37.27.17.7
+  37.87.77.7.57.47.47.37.27.17.7   87.77.7.57.47.47.37.27.17.7
+  77.7.57.47.47.37.27.17.7   7.57.47.47.37.27.17.7   57.47.47.37.27.17.7
+  47.47.37.27.17.7   47.37.27.17.7   37.27.17.7   27.17.7   17.7   7
+  38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38
+  68.78.8.28.98.78.58.98.8.88.8.58.58.58.38
+  78.8.28.98.78.58.98.8.88.8.58.58.58.38
+  8.28.98.78.58.98.8.88.8.58.58.58.38   28.98.78.58.98.8.88.8.58.58.58.38
+  98.78.58.98.8.88.8.58.58.58.38   78.58.98.8.88.8.58.58.58.38
+  58.98.8.88.8.58.58.58.38   98.8.88.8.58.58.58.38   8.88.8.58.58.58.38
+  88.8.58.58.58.38   8.58.58.58.38   58.58.58.38   58.58.38   58.38   38
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  9.79.49.59.29.59.19.39.9.9.99.69.39   79.49.59.29.59.19.39.9.9.99.69.39
+  49.59.29.59.19.39.9.9.99.69.39   59.29.59.19.39.9.9.99.69.39
+  29.59.19.39.9.9.99.69.39   59.19.39.9.9.99.69.39   19.39.9.9.99.69.39
+  39.9.9.99.69.39   9.9.99.69.39   9.99.69.39   99.69.39   69.39   39}
+
+do_execsql_test 1.16.14.3 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( ORDER BY b,a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
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+  91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  94.95.95.95.96.96.96.97.97.98.98.99.99
+  95.95.95.96.96.96.97.97.98.98.99.99   95.95.96.96.96.97.97.98.98.99.99
+  95.96.96.96.97.97.98.98.99.99   96.96.96.97.97.98.98.99.99
+  96.96.97.97.98.98.99.99   96.97.97.98.98.99.99   97.97.98.98.99.99
+  97.98.98.99.99   98.98.99.99   98.99.99   99.99   99}
+
+do_execsql_test 1.16.14.4 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {10.20.30.30.30.40.50.60.70.80.80.90.90.90
+  20.30.30.30.40.50.60.70.80.80.90.90.90
+  30.30.30.40.50.60.70.80.80.90.90.90   30.30.40.50.60.70.80.80.90.90.90
+  30.40.50.60.70.80.80.90.90.90   40.50.60.70.80.80.90.90.90
+  50.60.70.80.80.90.90.90   60.70.80.80.90.90.90   70.80.80.90.90.90
+  80.80.90.90.90   80.90.90.90   90.90.90   90.90   90
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  41.41.51.61.61.81.81.81.91.91.91.91.91
+  41.51.61.61.81.81.81.91.91.91.91.91   51.61.61.81.81.81.91.91.91.91.91
+  61.61.81.81.81.91.91.91.91.91   61.81.81.81.91.91.91.91.91
+  81.81.81.91.91.91.91.91   81.81.91.91.91.91.91   81.91.91.91.91.91
+  91.91.91.91.91   91.91.91.91   91.91.91   91.91   91
+  2.2.12.12.12.22.22.32.42.52.62.62.72.72.72.82
+  2.12.12.12.22.22.32.42.52.62.62.72.72.72.82
+  12.12.12.22.22.32.42.52.62.62.72.72.72.82
+  12.12.22.22.32.42.52.62.62.72.72.72.82
+  12.22.22.32.42.52.62.62.72.72.72.82   22.22.32.42.52.62.62.72.72.72.82
+  22.32.42.52.62.62.72.72.72.82   32.42.52.62.62.72.72.72.82
+  42.52.62.62.72.72.72.82   52.62.62.72.72.72.82   62.62.72.72.72.82
+  62.72.72.72.82   72.72.72.82   72.72.82   72.82   82
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  3.13.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  13.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  33.33.43.43.53.63.73.73.73.83.93.93.93
+  33.43.43.53.63.73.73.73.83.93.93.93   43.43.53.63.73.73.73.83.93.93.93
+  43.53.63.73.73.73.83.93.93.93   53.63.73.73.73.83.93.93.93
+  63.73.73.73.83.93.93.93   73.73.73.83.93.93.93   73.73.83.93.93.93
+  73.83.93.93.93   83.93.93.93   93.93.93   93.93   93
+  4.14.24.34.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  14.24.34.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  24.34.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  34.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  34.44.44.54.64.74.74.74.84.84.84.84.94
+  44.44.54.64.74.74.74.84.84.84.84.94   44.54.64.74.74.74.84.84.84.84.94
+  54.64.74.74.74.84.84.84.84.94   64.74.74.74.84.84.84.84.94
+  74.74.74.84.84.84.84.94   74.74.84.84.84.84.94   74.84.84.84.84.94
+  84.84.84.84.94   84.84.84.94   84.84.94   84.94   94
+  5.15.15.15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  15.15.15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  15.15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  55.65.65.65.75.75.75.85.85.85.95.95.95
+  65.65.65.75.75.75.85.85.85.95.95.95   65.65.75.75.75.85.85.85.95.95.95
+  65.75.75.75.85.85.85.95.95.95   75.75.75.85.85.85.95.95.95
+  75.75.85.85.85.95.95.95   75.85.85.85.95.95.95   85.85.85.95.95.95
+  85.85.95.95.95   85.95.95.95   95.95.95   95.95   95
+  6.16.16.16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  16.16.16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  16.16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  36.36.46.46.56.56.56.66.76.86.96.96.96
+  36.46.46.56.56.56.66.76.86.96.96.96   46.46.56.56.56.66.76.86.96.96.96
+  46.56.56.56.66.76.86.96.96.96   56.56.56.66.76.86.96.96.96
+  56.56.66.76.86.96.96.96   56.66.76.86.96.96.96   66.76.86.96.96.96
+  76.86.96.96.96   86.96.96.96   96.96.96   96.96   96
+  7.7.7.17.27.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  7.7.17.27.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  7.17.27.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  17.27.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  27.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  37.47.47.47.47.57.67.77.77.87.87.97.97
+  47.47.47.47.57.67.77.77.87.87.97.97   47.47.47.57.67.77.77.87.87.97.97
+  47.47.57.67.77.77.87.87.97.97   47.57.67.77.77.87.87.97.97
+  57.67.77.77.87.87.97.97   67.77.77.87.87.97.97   77.77.87.87.97.97
+  77.87.87.97.97   87.87.97.97   87.97.97   97.97   97
+  8.8.8.28.38.38.58.58.58.58.68.78.78.88.98.98
+  8.8.28.38.38.58.58.58.58.68.78.78.88.98.98
+  8.28.38.38.58.58.58.58.68.78.78.88.98.98
+  28.38.38.58.58.58.58.68.78.78.88.98.98
+  38.38.58.58.58.58.68.78.78.88.98.98   38.58.58.58.58.68.78.78.88.98.98
+  58.58.58.58.68.78.78.88.98.98   58.58.58.68.78.78.88.98.98
+  58.58.68.78.78.88.98.98   58.68.78.78.88.98.98   68.78.78.88.98.98
+  78.78.88.98.98   78.88.98.98   88.98.98   98.98   98
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  39.49.59.59.59.59.69.79.89.89.89.99.99
+  49.59.59.59.59.69.79.89.89.89.99.99   59.59.59.59.69.79.89.89.89.99.99
+  59.59.59.69.79.89.89.89.99.99   59.59.69.79.89.89.89.99.99
+  59.69.79.89.89.89.99.99   69.79.89.89.89.99.99   79.89.89.89.99.99
+  89.89.89.99.99   89.89.99.99   89.99.99   99.99   99}
+
+do_execsql_test 1.16.14.5 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( ORDER BY b%10,a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t2
+} {90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
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+  26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  9.79.49.59.29.59.19.39.9.9.99.69.39   79.49.59.29.59.19.39.9.9.99.69.39
+  49.59.29.59.19.39.9.9.99.69.39   59.29.59.19.39.9.9.99.69.39
+  29.59.19.39.9.9.99.69.39   59.19.39.9.9.99.69.39   19.39.9.9.99.69.39
+  39.9.9.99.69.39   9.9.99.69.39   9.99.69.39   99.69.39   69.39   39}
+
+do_execsql_test 1.16.14.6 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING) FROM t2
+} {96   38   68   62   46   6   46   78   54   8   84   16   16   86   74   24
+  12   32   56   22   90   28   56   40   56   16   36   98   76   4   94
+  42   30   78   2   80   84   72   58   96   98   74   12   8   20   22   88
+  34   8   34   90   96   60   44   2   74   70   26   26   80   90   36   58
+  72   72   66   64   12   14   62   36   34   36   58   52   30   50   84
+  10   84   44   58   30   38   34   82   89   81   59   39   91   99   97
+  27   97   67   29   93   77   23   93   65   35   47   7   61   91   85
+  85   43   59   3   91   55   15   89   25   47   1   43   75   89   81   33
+  29   53   63   87   37   41   9   61   73   95   65   13   1   21   65   35
+  5   73   11   51   87   41   31   31   15   95   73   79   11   49   59
+  55   75   77   7   85   57   29   59   19   39   47   47   9   33   93   75
+  81   9   23   37   13   91   91   33   15   99   3   95   69   33   21   39
+  83   27   17   7}
+
+do_execsql_test 1.16.14.7 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (win1 ORDER BY b%10 ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING) 
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a)
+    ORDER BY 1
+} {1   1   10   11   11   12   12   12   13   13   14   15   15   15   16   16
+  16   17   19   2   2   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   3   3   30   30   30   31   31   32   33   33
+  33   33   34   34   34   34   35   35   36   36   36   36   37   37   38
+  38   39   39   39   4   40   41   41   42   43   43   44   44   46   46
+  47   47   47   47   49   5   50   51   52   53   54   55   55   56   56
+  56   57   58   58   58   58   59   59   59   59   6   60   61   61   62
+  62   63   64   65   65   65   66   67   68   69   7   7   7   70   72   72
+  72   73   73   73   74   74   74   75   75   75   76   77   77   78   78
+  79   8   8   8   80   80   81   81   81   82   83   84   84   84   84   85
+  85   85   86   87   87   88   89   89   89   9   9   9   90   90   90   91
+  91   91   91   91   93   93   93   94   95   95   95   96   96   96   97
+  97   98   98   99   99}
+
+do_execsql_test 1.16.14.8 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (win1 ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING) 
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a ORDER BY b%10)
+    ORDER BY 1
+} {1   1   10   11   11   12   12   12   13   13   14   15   15   15   16   16
+  16   17   19   2   2   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   3   3   30   30   30   31   31   32   33   33
+  33   33   34   34   34   34   35   35   36   36   36   36   37   37   38
+  38   39   39   39   4   40   41   41   42   43   43   44   44   46   46
+  47   47   47   47   49   5   50   51   52   53   54   55   55   56   56
+  56   57   58   58   58   58   59   59   59   59   6   60   61   61   62
+  62   63   64   65   65   65   66   67   68   69   7   7   7   70   72   72
+  72   73   73   73   74   74   74   75   75   75   76   77   77   78   78
+  79   8   8   8   80   80   81   81   81   82   83   84   84   84   84   85
+  85   85   86   87   87   88   89   89   89   9   9   9   90   90   90   91
+  91   91   91   91   93   93   93   94   95   95   95   96   96   96   97
+  97   98   98   99   99}
+
+do_execsql_test 1.16.14.9 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER win2
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a ORDER BY b%10),
+           win2 AS (win1 ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING)
+    ORDER BY 1
+} {1   1   10   11   11   12   12   12   13   13   14   15   15   15   16   16
+  16   17   19   2   2   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   3   3   30   30   30   31   31   32   33   33
+  33   33   34   34   34   34   35   35   36   36   36   36   37   37   38
+  38   39   39   39   4   40   41   41   42   43   43   44   44   46   46
+  47   47   47   47   49   5   50   51   52   53   54   55   55   56   56
+  56   57   58   58   58   58   59   59   59   59   6   60   61   61   62
+  62   63   64   65   65   65   66   67   68   69   7   7   7   70   72   72
+  72   73   73   73   74   74   74   75   75   75   76   77   77   78   78
+  79   8   8   8   80   80   81   81   81   82   83   84   84   84   84   85
+  85   85   86   87   87   88   89   89   89   9   9   9   90   90   90   91
+  91   91   91   91   93   93   93   94   95   95   95   96   96   96   97
+  97   98   98   99   99}
+
+do_execsql_test 1.16.15.1 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE a%2=0) OVER win FROM t2
+    WINDOW win AS (ORDER BY a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING)
+} {191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  190 96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  189 96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  188 38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  187 38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  186 39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  185 39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
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+  61 74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  60 70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  59 70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  58 19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  57 19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  56 26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  55 26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  54 47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  53 47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  52 90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  51 90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  50 58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  49 58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  48 9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  47 9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  46 72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  45 72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  44 33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  43 33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  42 75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  41 75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  40 81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  39 81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  38 23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  37 23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  36 13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  35 13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  34 14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  33 14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  32 91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  31 91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  30 91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  29 91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  28 15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  27 15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  26 36.3.69.52.50.10.33.39.58.38.83.82.7
+  25 36.3.69.52.50.10.33.39.58.38.83.82.7
+  24 3.69.52.50.10.33.39.58.38.83.82.7   23 3.69.52.50.10.33.39.58.38.83.82.7
+  22 69.52.50.10.33.39.58.38.83.82.7   21 69.52.50.10.33.39.58.38.83.82.7
+  20 52.50.10.33.39.58.38.83.82.7   19 52.50.10.33.39.58.38.83.82.7
+  18 50.10.33.39.58.38.83.82.7   17 50.10.33.39.58.38.83.82.7
+  16 10.33.39.58.38.83.82.7   15 10.33.39.58.38.83.82.7
+  14 33.39.58.38.83.82.7   13 33.39.58.38.83.82.7   12 39.58.38.83.82.7
+  11 39.58.38.83.82.7   10 58.38.83.82.7   9 58.38.83.82.7   8 38.83.82.7
+  7 38.83.82.7   6 83.82.7   5 83.82.7   4 82.7   3 82.7   2 7   1 7}
+
+do_execsql_test 1.16.15.2 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE 0=1) OVER win FROM t2
+    WINDOW win AS (ORDER BY a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING)
+} {191 {}   190 {}   189 {}   188 {}   187 {}   186 {}   185 {}   184 {}
+  183 {}   182 {}   181 {}   180 {}   179 {}   178 {}   177 {}   176 {}
+  175 {}   174 {}   173 {}   172 {}   171 {}   170 {}   169 {}   168 {}
+  167 {}   166 {}   165 {}   164 {}   163 {}   162 {}   161 {}   160 {}
+  159 {}   158 {}   157 {}   156 {}   155 {}   154 {}   153 {}   152 {}
+  151 {}   150 {}   149 {}   148 {}   147 {}   146 {}   145 {}   144 {}
+  143 {}   142 {}   141 {}   140 {}   139 {}   138 {}   137 {}   136 {}
+  135 {}   134 {}   133 {}   132 {}   131 {}   130 {}   129 {}   128 {}
+  127 {}   126 {}   125 {}   124 {}   123 {}   122 {}   121 {}   120 {}
+  119 {}   118 {}   117 {}   116 {}   115 {}   114 {}   113 {}   112 {}
+  111 {}   110 {}   109 {}   108 {}   107 {}   106 {}   105 {}   104 {}
+  103 {}   102 {}   101 {}   100 {}   99 {}   98 {}   97 {}   96 {}   95 {}
+  94 {}   93 {}   92 {}   91 {}   90 {}   89 {}   88 {}   87 {}   86 {}
+  85 {}   84 {}   83 {}   82 {}   81 {}   80 {}   79 {}   78 {}   77 {}
+  76 {}   75 {}   74 {}   73 {}   72 {}   71 {}   70 {}   69 {}   68 {}
+  67 {}   66 {}   65 {}   64 {}   63 {}   62 {}   61 {}   60 {}   59 {}
+  58 {}   57 {}   56 {}   55 {}   54 {}   53 {}   52 {}   51 {}   50 {}
+  49 {}   48 {}   47 {}   46 {}   45 {}   44 {}   43 {}   42 {}   41 {}
+  40 {}   39 {}   38 {}   37 {}   36 {}   35 {}   34 {}   33 {}   32 {}
+  31 {}   30 {}   29 {}   28 {}   27 {}   26 {}   25 {}   24 {}   23 {}
+  22 {}   21 {}   20 {}   19 {}   18 {}   17 {}   16 {}   15 {}   14 {}
+  13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}   4 {}
+  3 {}   2 {}   1 {}}
+
+do_execsql_test 1.16.15.3 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE 1=0) OVER win FROM t2
+    WINDOW win AS (PARTITION BY (a%10) ORDER BY a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING)
+} {20 {}   19 {}   18 {}   17 {}   16 {}   15 {}   14 {}   13 {}   12 {}
+  11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}   4 {}   3 {}   2 {}
+  1 {}   19 {}   18 {}   17 {}   16 {}   15 {}   14 {}   13 {}   12 {}
+  11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}   4 {}   3 {}   2 {}
+  1 {}   19 {}   18 {}   17 {}   16 {}   15 {}   14 {}   13 {}   12 {}
+  11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}   4 {}   3 {}   2 {}
+  1 {}   19 {}   18 {}   17 {}   16 {}   15 {}   14 {}   13 {}   12 {}
+  11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}   4 {}   3 {}   2 {}
+  1 {}   19 {}   18 {}   17 {}   16 {}   15 {}   14 {}   13 {}   12 {}
+  11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}   4 {}   3 {}   2 {}
+  1 {}   19 {}   18 {}   17 {}   16 {}   15 {}   14 {}   13 {}   12 {}
+  11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}   4 {}   3 {}   2 {}
+  1 {}   19 {}   18 {}   17 {}   16 {}   15 {}   14 {}   13 {}   12 {}
+  11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}   4 {}   3 {}   2 {}
+  1 {}   19 {}   18 {}   17 {}   16 {}   15 {}   14 {}   13 {}   12 {}
+  11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}   4 {}   3 {}   2 {}
+  1 {}   19 {}   18 {}   17 {}   16 {}   15 {}   14 {}   13 {}   12 {}
+  11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}   4 {}   3 {}   2 {}
+  1 {}   19 {}   18 {}   17 {}   16 {}   15 {}   14 {}   13 {}   12 {}
+  11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}   4 {}   3 {}   2 {}
+  1 {}}
+
+do_execsql_test 1.16.15.4 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE a%2=0) OVER win FROM t2
+    WINDOW win AS (PARTITION BY (a%10) ORDER BY a ROWS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING)
+} {20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  19 6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  18 29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  17 47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  16 59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  15 28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  14 75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  13 78.72.98.87.73.96.74.90.75.91.69.39.7
+  12 72.98.87.73.96.74.90.75.91.69.39.7   11 98.87.73.96.74.90.75.91.69.39.7
+  10 87.73.96.74.90.75.91.69.39.7   9 73.96.74.90.75.91.69.39.7
+  8 96.74.90.75.91.69.39.7   7 74.90.75.91.69.39.7   6 90.75.91.69.39.7
+  5 75.91.69.39.7   4 91.69.39.7   3 69.39.7   2 39.7   1 7   19 {}   18 {}
+  17 {}   16 {}   15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}
+  7 {}   6 {}   5 {}   4 {}   3 {}   2 {}   1 {}
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  18 97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  17 84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  16 86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  15 32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  14 25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  13 89.29.9.21.12.88.55.70.58.81.91.52.58
+  12 29.9.21.12.88.55.70.58.81.91.52.58   11 9.21.12.88.55.70.58.81.91.52.58
+  10 21.12.88.55.70.58.81.91.52.58   9 12.88.55.70.58.81.91.52.58
+  8 88.55.70.58.81.91.52.58   7 55.70.58.81.91.52.58   6 70.58.81.91.52.58
+  5 58.81.91.52.58   4 81.91.52.58   3 91.52.58   2 52.58   1 58   19 {}
+  18 {}   17 {}   16 {}   15 {}   14 {}   13 {}   12 {}   11 {}   10 {}
+  9 {}   8 {}   7 {}   6 {}   5 {}   4 {}   3 {}   2 {}   1 {}
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  18 46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  17 23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  16 61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  15 3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  14 1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  13 76.63.73.65.20.8.77.19.9.23.15.50.38
+  12 63.73.65.20.8.77.19.9.23.15.50.38   11 73.65.20.8.77.19.9.23.15.50.38
+  10 65.20.8.77.19.9.23.15.50.38   9 20.8.77.19.9.23.15.50.38
+  8 8.77.19.9.23.15.50.38   7 77.19.9.23.15.50.38   6 19.9.23.15.50.38
+  5 9.23.15.50.38   4 23.15.50.38   3 15.50.38   2 50.38   1 38   19 {}
+  18 {}   17 {}   16 {}   15 {}   14 {}   13 {}   12 {}   11 {}   10 {}
+  9 {}   8 {}   7 {}   6 {}   5 {}   4 {}   3 {}   2 {}   1 {}
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  18 54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  17 16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  16 85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  15 22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  14 40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  13 4.87.65.5.31.49.2.26.72.13.36.10.83
+  12 87.65.5.31.49.2.26.72.13.36.10.83   11 65.5.31.49.2.26.72.13.36.10.83
+  10 5.31.49.2.26.72.13.36.10.83   9 31.49.2.26.72.13.36.10.83
+  8 49.2.26.72.13.36.10.83   7 2.26.72.13.36.10.83   6 26.72.13.36.10.83
+  5 72.13.36.10.83   4 13.36.10.83   3 36.10.83   2 10.83   1 83   19 {}
+  18 {}   17 {}   16 {}   15 {}   14 {}   13 {}   12 {}   11 {}   10 {}
+  9 {}   8 {}   7 {}   6 {}   5 {}   4 {}   3 {}   2 {}   1 {}
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  18 8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  17 65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  16 85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  15 55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  14 56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  13 42.80.58.11.95.90.85.47.33.14.3.33.82
+  12 80.58.11.95.90.85.47.33.14.3.33.82   11 58.11.95.90.85.47.33.14.3.33.82
+  10 11.95.90.85.47.33.14.3.33.82   9 95.90.85.47.33.14.3.33.82
+  8 90.85.47.33.14.3.33.82   7 85.47.33.14.3.33.82   6 47.33.14.3.33.82
+  5 33.14.3.33.82   4 14.3.33.82   3 3.33.82   2 33.82   1 82   19 {}   18 {}
+  17 {}   16 {}   15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}
+  7 {}   6 {}   5 {}   4 {}   3 {}   2 {}   1 {}}
+
+do_execsql_test 1.17.2.1 {
+  SELECT max(b) OVER ( ORDER BY a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   95
+  95   84   84   84   84   84   84   84   84   83   83   83   83   83   83
+  83   83   83   82   82   17   7   {}   {}   {}   {}}
+
+do_execsql_test 1.17.2.2 {
+  SELECT min(b) OVER ( ORDER BY a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   3   3   3   3   3   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   7   7   7   7   7   7
+  7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   {}   {}
+  {}   {}}
+
+do_execsql_test 1.17.3.1 {
+  SELECT row_number() OVER ( ORDER BY a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.17.3.2 {
+  SELECT row_number() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.17.3.3 {
+  SELECT row_number() OVER ( ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.17.4.1 {
+  SELECT dense_rank() OVER ( ORDER BY a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.17.4.2 {
+  SELECT dense_rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.17.4.3 {
+  SELECT dense_rank() OVER ( ORDER BY b ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   2   2   3   3   4   5   6   7   7   7   8   8   8   9   9   9   10
+  11   11   12   12   12   13   13   14   15   15   15   16   16   16   17
+  18   19   20   20   21   21   22   22   23   24   25   25   26   26   27
+  28   28   28   29   29   29   30   30   31   32   32   32   32   33   33
+  33   33   34   34   35   35   35   35   36   36   37   37   38   38   38
+  39   40   40   41   42   42   43   43   44   44   45   45   45   45   46
+  47   48   49   50   51   52   52   53   53   53   54   55   55   55   55
+  56   56   56   56   57   58   58   59   59   60   61   62   62   62   63
+  64   65   66   67   68   68   68   69   69   69   70   70   70   71   71
+  71   72   73   73   74   74   75   76   76   77   77   77   78   79   80
+  80   80   80   81   81   81   82   83   83   84   85   85   85   86   86
+  86   87   87   87   87   87   88   88   88   89   90   90   90   91   91
+  91   92   92   93   93   94   94}
+
+do_execsql_test 1.17.4.4 {
+  SELECT dense_rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   3   3   4   5   6   7   8   8   9   9   9   1   1   2   2   3
+  3   4   4   5   5   6   7   7   8   8   8   9   9   9   9   9   1   1   2
+  2   2   3   3   4   5   6   7   7   8   8   8   9   1   1   2   2   3   3
+  4   4   4   4   5   5   6   7   8   8   8   9   10   10   10   1   2   3
+  4   4   4   4   5   5   6   7   8   8   8   9   9   9   9   10   1   2   2
+  2   3   4   4   5   5   6   6   6   7   7   7   8   8   8   9   9   9   1
+  2   2   2   3   3   4   4   4   4   5   5   6   6   6   7   8   9   10   10
+  10   1   1   1   2   3   3   4   4   5   5   5   5   6   7   8   8   9   9
+  10   10   1   1   1   2   3   3   4   4   4   4   5   6   6   7   8   8   1
+  1   1   2   3   3   3   4   4   4   5   6   6   6   6   7   8   9   9   9
+  10   10}
+
+do_execsql_test 1.17.4.5 {
+  SELECT dense_rank() OVER ( ORDER BY b%10 ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   4   4   4   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5   5   5   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   6   6   6   6
+  6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   7   7
+  7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7
+  8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8
+  8   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   10   10
+  10   10   10   10   10   10   10   10   10   10   10   10   10   10   10
+  10   10   10   10   10}
+
+do_execsql_test 1.17.4.6 {
+  SELECT dense_rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   3   3   3   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   4   4   4   4   4   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   5   5   5   5   5   5
+  5   5   5   5   5   5   5   5   5   5   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5
+  5}
+
+do_execsql_test 1.17.5.1 {
+  SELECT rank() OVER ( ORDER BY a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.17.5.2 {
+  SELECT rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.17.5.3 {
+  SELECT rank() OVER ( ORDER BY b ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   3   3   5   5   7   8   9   10   10   10   13   13   13   16   16
+  16   19   20   20   22   22   22   25   25   27   28   28   28   31   31
+  31   34   35   36   37   37   39   39   41   41   43   44   45   45   47
+  47   49   50   50   50   53   53   53   56   56   58   59   59   59   59
+  63   63   63   63   67   67   69   69   69   69   73   73   75   75   77
+  77   77   80   81   81   83   84   84   86   86   88   88   90   90   90
+  90   94   95   96   97   98   99   100   100   102   102   102   105   106
+  106   106   106   110   110   110   110   114   115   115   117   117   119
+  120   121   121   121   124   125   126   127   128   129   129   129   132
+  132   132   135   135   135   138   138   138   141   142   142   144   144
+  146   147   147   149   149   149   152   153   154   154   154   154   158
+  158   158   161   162   162   164   165   165   165   168   168   168   171
+  171   171   171   171   176   176   176   179   180   180   180   183   183
+  183   186   186   188   188   190   190}
+
+do_execsql_test 1.17.5.4 {
+  SELECT rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   3   3   6   7   8   9   10   10   12   12   12   1   1   3   3
+  5   5   7   7   9   9   11   12   12   14   14   14   17   17   17   17
+  17   1   1   3   3   3   6   6   8   9   10   11   11   13   13   13   16
+  1   1   3   3   5   5   7   7   7   7   11   11   13   14   15   15   15
+  18   19   19   19   1   2   3   4   4   4   4   8   8   10   11   12   12
+  12   15   15   15   15   19   1   2   2   2   5   6   6   8   8   10   10
+  10   13   13   13   16   16   16   19   19   19   1   2   2   2   5   5   7
+  7   7   7   11   11   13   13   13   16   17   18   19   19   19   1   1
+  1   4   5   5   7   7   9   9   9   9   13   14   15   15   17   17   19
+  19   1   1   1   4   5   5   7   7   7   7   11   12   12   14   15   15
+  1   1   1   4   5   5   5   8   8   8   11   12   12   12   12   16   17
+  18   18   18   21   21}
+
+do_execsql_test 1.17.5.5 {
+  SELECT rank() OVER ( ORDER BY b%10 ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   15   15   15   15
+  15   15   15   15   15   15   15   15   15   15   15   15   15   15   15
+  15   15   36   36   36   36   36   36   36   36   36   36   36   36   36
+  36   36   36   52   52   52   52   52   52   52   52   52   52   52   52
+  52   52   52   52   52   52   52   52   52   73   73   73   73   73   73
+  73   73   73   73   73   73   73   73   73   73   73   73   73   92   92
+  92   92   92   92   92   92   92   92   92   92   92   92   92   92   92
+  92   92   92   92   113   113   113   113   113   113   113   113   113
+  113   113   113   113   113   113   113   113   113   113   113   113   134
+  134   134   134   134   134   134   134   134   134   134   134   134   134
+  134   134   134   134   134   134   154   154   154   154   154   154   154
+  154   154   154   154   154   154   154   154   154   170   170   170   170
+  170   170   170   170   170   170   170   170   170   170   170   170   170
+  170   170   170   170   170}
+
+do_execsql_test 1.17.5.6 {
+  SELECT rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   15   15   15   15
+  15   15   15   15   15   15   15   15   15   15   15   15   31   31   31
+  31   31   31   31   31   31   31   31   31   31   31   31   31   31   31
+  31   50   50   50   50   50   50   50   50   50   50   50   50   50   50
+  50   50   50   50   50   50   50   71   71   71   71   71   71   71   71
+  71   71   71   71   71   71   71   71   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   22   22   22   22   22   22
+  22   22   22   22   22   22   22   22   22   22   22   22   22   22   22
+  43   43   43   43   43   43   43   43   43   43   43   43   43   43   43
+  43   43   43   43   43   43   64   64   64   64   64   64   64   64   64
+  64   64   64   64   64   64   64   64   64   64   64   84   84   84   84
+  84   84   84   84   84   84   84   84   84   84   84   84   84   84   84
+  84   84   84}
+
+do_execsql_test 1.17.6.1 {
+  SELECT 
+      row_number() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ),
+      rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ),
+      dense_rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING )
+    FROM t2
+} {1 1 1   2 1 1   3 1 1   4 1 1   5 1 1   6 1 1   7 1 1   8 1 1   9 1 1
+  10 1 1   11 1 1   12 1 1   13 1 1   14 1 1   15 15 2   16 15 2   17 15 2
+  18 15 2   19 15 2   20 15 2   21 15 2   22 15 2   23 15 2   24 15 2
+  25 15 2   26 15 2   27 15 2   28 15 2   29 15 2   30 15 2   31 31 3
+  32 31 3   33 31 3   34 31 3   35 31 3   36 31 3   37 31 3   38 31 3
+  39 31 3   40 31 3   41 31 3   42 31 3   43 31 3   44 31 3   45 31 3
+  46 31 3   47 31 3   48 31 3   49 31 3   50 50 4   51 50 4   52 50 4
+  53 50 4   54 50 4   55 50 4   56 50 4   57 50 4   58 50 4   59 50 4
+  60 50 4   61 50 4   62 50 4   63 50 4   64 50 4   65 50 4   66 50 4
+  67 50 4   68 50 4   69 50 4   70 50 4   71 71 5   72 71 5   73 71 5
+  74 71 5   75 71 5   76 71 5   77 71 5   78 71 5   79 71 5   80 71 5
+  81 71 5   82 71 5   83 71 5   84 71 5   85 71 5   86 71 5   1 1 1   2 1 1
+  3 1 1   4 1 1   5 1 1   6 1 1   7 1 1   8 1 1   9 1 1   10 1 1   11 1 1
+  12 1 1   13 1 1   14 1 1   15 1 1   16 1 1   17 1 1   18 1 1   19 1 1
+  20 1 1   21 1 1   22 22 2   23 22 2   24 22 2   25 22 2   26 22 2   27 22 2
+  28 22 2   29 22 2   30 22 2   31 22 2   32 22 2   33 22 2   34 22 2
+  35 22 2   36 22 2   37 22 2   38 22 2   39 22 2   40 22 2   41 22 2
+  42 22 2   43 43 3   44 43 3   45 43 3   46 43 3   47 43 3   48 43 3
+  49 43 3   50 43 3   51 43 3   52 43 3   53 43 3   54 43 3   55 43 3
+  56 43 3   57 43 3   58 43 3   59 43 3   60 43 3   61 43 3   62 43 3
+  63 43 3   64 64 4   65 64 4   66 64 4   67 64 4   68 64 4   69 64 4
+  70 64 4   71 64 4   72 64 4   73 64 4   74 64 4   75 64 4   76 64 4
+  77 64 4   78 64 4   79 64 4   80 64 4   81 64 4   82 64 4   83 64 4
+  84 84 5   85 84 5   86 84 5   87 84 5   88 84 5   89 84 5   90 84 5
+  91 84 5   92 84 5   93 84 5   94 84 5   95 84 5   96 84 5   97 84 5
+  98 84 5   99 84 5   100 84 5   101 84 5   102 84 5   103 84 5   104 84 5
+  105 84 5}
+
+
+do_test 1.17.7.1 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0053 0.0105 0.0158 0.0211 0.0263 0.0316 0.0368 0.0421 0.0474 0.0526 0.0579 0.0632 0.0684 0.0737 0.0789 0.0842 0.0895 0.0947 0.1000 0.1053 0.1105 0.1158 0.1211 0.1263 0.1316 0.1368 0.1421 0.1474 0.1526 0.1579 0.1632 0.1684 0.1737 0.1789 0.1842 0.1895 0.1947 0.2000 0.2053 0.2105 0.2158 0.2211 0.2263 0.2316 0.2368 0.2421 0.2474 0.2526 0.2579 0.2632 0.2684 0.2737 0.2789 0.2842 0.2895 0.2947 0.3000 0.3053 0.3105 0.3158 0.3211 0.3263 0.3316 0.3368 0.3421 0.3474 0.3526 0.3579 0.3632 0.3684 0.3737 0.3789 0.3842 0.3895 0.3947 0.4000 0.4053 0.4105 0.4158 0.4211 0.4263 0.4316 0.4368 0.4421 0.4474 0.4526 0.4579 0.4632 0.4684 0.4737 0.4789 0.4842 0.4895 0.4947 0.5000 0.5053 0.5105 0.5158 0.5211 0.5263 0.5316 0.5368 0.5421 0.5474 0.5526 0.5579 0.5632 0.5684 0.5737 0.5789 0.5842 0.5895 0.5947 0.6000 0.6053 0.6105 0.6158 0.6211 0.6263 0.6316 0.6368 0.6421 0.6474 0.6526 0.6579 0.6632 0.6684 0.6737 0.6789 0.6842 0.6895 0.6947 0.7000 0.7053 0.7105 0.7158 0.7211 0.7263 0.7316 0.7368 0.7421 0.7474 0.7526 0.7579 0.7632 0.7684 0.7737 0.7789 0.7842 0.7895 0.7947 0.8000 0.8053 0.8105 0.8158 0.8211 0.8263 0.8316 0.8368 0.8421 0.8474 0.8526 0.8579 0.8632 0.8684 0.8737 0.8789 0.8842 0.8895 0.8947 0.9000 0.9053 0.9105 0.9158 0.9211 0.9263 0.9316 0.9368 0.9421 0.9474 0.9526 0.9579 0.9632 0.9684 0.9737 0.9789 0.9842 0.9895 0.9947 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.17.7.2 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0769 0.1538 0.2308 0.3077 0.3846 0.4615 0.5385 0.6154 0.6923 0.7692 0.8462 0.9231 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0667 0.1333 0.2000 0.2667 0.3333 0.4000 0.4667 0.5333 0.6000 0.6667 0.7333 0.8000 0.8667 0.9333 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0556 0.1111 0.1667 0.2222 0.2778 0.3333 0.3889 0.4444 0.5000 0.5556 0.6111 0.6667 0.7222 0.7778 0.8333 0.8889 0.9444 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0526 0.1053 0.1579 0.2105 0.2632 0.3158 0.3684 0.4211 0.4737 0.5263 0.5789 0.6316 0.6842 0.7368 0.7895 0.8421 0.8947 0.9474 1.0000 0.0000 0.0667 0.1333 0.2000 0.2667 0.3333 0.4000 0.4667 0.5333 0.6000 0.6667 0.7333 0.8000 0.8667 0.9333 1.0000 0.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.17.7.3 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY b ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0105 0.0105 0.0211 0.0211 0.0316 0.0368 0.0421 0.0474 0.0474 0.0474 0.0632 0.0632 0.0632 0.0789 0.0789 0.0789 0.0947 0.1000 0.1000 0.1105 0.1105 0.1105 0.1263 0.1263 0.1368 0.1421 0.1421 0.1421 0.1579 0.1579 0.1579 0.1737 0.1789 0.1842 0.1895 0.1895 0.2000 0.2000 0.2105 0.2105 0.2211 0.2263 0.2316 0.2316 0.2421 0.2421 0.2526 0.2579 0.2579 0.2579 0.2737 0.2737 0.2737 0.2895 0.2895 0.3000 0.3053 0.3053 0.3053 0.3053 0.3263 0.3263 0.3263 0.3263 0.3474 0.3474 0.3579 0.3579 0.3579 0.3579 0.3789 0.3789 0.3895 0.3895 0.4000 0.4000 0.4000 0.4158 0.4211 0.4211 0.4316 0.4368 0.4368 0.4474 0.4474 0.4579 0.4579 0.4684 0.4684 0.4684 0.4684 0.4895 0.4947 0.5000 0.5053 0.5105 0.5158 0.5211 0.5211 0.5316 0.5316 0.5316 0.5474 0.5526 0.5526 0.5526 0.5526 0.5737 0.5737 0.5737 0.5737 0.5947 0.6000 0.6000 0.6105 0.6105 0.6211 0.6263 0.6316 0.6316 0.6316 0.6474 0.6526 0.6579 0.6632 0.6684 0.6737 0.6737 0.6737 0.6895 0.6895 0.6895 0.7053 0.7053 0.7053 0.7211 0.7211 0.7211 0.7368 0.7421 0.7421 0.7526 0.7526 0.7632 0.7684 0.7684 0.7789 0.7789 0.7789 0.7947 0.8000 0.8053 0.8053 0.8053 0.8053 0.8263 0.8263 0.8263 0.8421 0.8474 0.8474 0.8579 0.8632 0.8632 0.8632 0.8789 0.8789 0.8789 0.8947 0.8947 0.8947 0.8947 0.8947 0.9211 0.9211 0.9211 0.9368 0.9421 0.9421 0.9421 0.9579 0.9579 0.9579 0.9737 0.9737 0.9842 0.9842 0.9947 0.9947}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.17.7.4 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0769 0.1538 0.1538 0.1538 0.3846 0.4615 0.5385 0.6154 0.6923 0.6923 0.8462 0.8462 0.8462 0.0000 0.0000 0.1000 0.1000 0.2000 0.2000 0.3000 0.3000 0.4000 0.4000 0.5000 0.5500 0.5500 0.6500 0.6500 0.6500 0.8000 0.8000 0.8000 0.8000 0.8000 0.0000 0.0000 0.1333 0.1333 0.1333 0.3333 0.3333 0.4667 0.5333 0.6000 0.6667 0.6667 0.8000 0.8000 0.8000 1.0000 0.0000 0.0000 0.1000 0.1000 0.2000 0.2000 0.3000 0.3000 0.3000 0.3000 0.5000 0.5000 0.6000 0.6500 0.7000 0.7000 0.7000 0.8500 0.9000 0.9000 0.9000 0.0000 0.0556 0.1111 0.1667 0.1667 0.1667 0.1667 0.3889 0.3889 0.5000 0.5556 0.6111 0.6111 0.6111 0.7778 0.7778 0.7778 0.7778 1.0000 0.0000 0.0500 0.0500 0.0500 0.2000 0.2500 0.2500 0.3500 0.3500 0.4500 0.4500 0.4500 0.6000 0.6000 0.6000 0.7500 0.7500 0.7500 0.9000 0.9000 0.9000 0.0000 0.0500 0.0500 0.0500 0.2000 0.2000 0.3000 0.3000 0.3000 0.3000 0.5000 0.5000 0.6000 0.6000 0.6000 0.7500 0.8000 0.8500 0.9000 0.9000 0.9000 0.0000 0.0000 0.0000 0.1579 0.2105 0.2105 0.3158 0.3158 0.4211 0.4211 0.4211 0.4211 0.6316 0.6842 0.7368 0.7368 0.8421 0.8421 0.9474 0.9474 0.0000 0.0000 0.0000 0.2000 0.2667 0.2667 0.4000 0.4000 0.4000 0.4000 0.6667 0.7333 0.7333 0.8667 0.9333 0.9333 0.0000 0.0000 0.0000 0.1429 0.1905 0.1905 0.1905 0.3333 0.3333 0.3333 0.4762 0.5238 0.5238 0.5238 0.5238 0.7143 0.7619 0.8095 0.8095 0.8095 0.9524 0.9524}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.17.7.5 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY b%10 ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.17.7.6 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER (PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.17.8.1 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0052 0.0105 0.0157 0.0209 0.0262 0.0314 0.0366 0.0419 0.0471 0.0524 0.0576 0.0628 0.0681 0.0733 0.0785 0.0838 0.0890 0.0942 0.0995 0.1047 0.1099 0.1152 0.1204 0.1257 0.1309 0.1361 0.1414 0.1466 0.1518 0.1571 0.1623 0.1675 0.1728 0.1780 0.1832 0.1885 0.1937 0.1990 0.2042 0.2094 0.2147 0.2199 0.2251 0.2304 0.2356 0.2408 0.2461 0.2513 0.2565 0.2618 0.2670 0.2723 0.2775 0.2827 0.2880 0.2932 0.2984 0.3037 0.3089 0.3141 0.3194 0.3246 0.3298 0.3351 0.3403 0.3455 0.3508 0.3560 0.3613 0.3665 0.3717 0.3770 0.3822 0.3874 0.3927 0.3979 0.4031 0.4084 0.4136 0.4188 0.4241 0.4293 0.4346 0.4398 0.4450 0.4503 0.4555 0.4607 0.4660 0.4712 0.4764 0.4817 0.4869 0.4921 0.4974 0.5026 0.5079 0.5131 0.5183 0.5236 0.5288 0.5340 0.5393 0.5445 0.5497 0.5550 0.5602 0.5654 0.5707 0.5759 0.5812 0.5864 0.5916 0.5969 0.6021 0.6073 0.6126 0.6178 0.6230 0.6283 0.6335 0.6387 0.6440 0.6492 0.6545 0.6597 0.6649 0.6702 0.6754 0.6806 0.6859 0.6911 0.6963 0.7016 0.7068 0.7120 0.7173 0.7225 0.7277 0.7330 0.7382 0.7435 0.7487 0.7539 0.7592 0.7644 0.7696 0.7749 0.7801 0.7853 0.7906 0.7958 0.8010 0.8063 0.8115 0.8168 0.8220 0.8272 0.8325 0.8377 0.8429 0.8482 0.8534 0.8586 0.8639 0.8691 0.8743 0.8796 0.8848 0.8901 0.8953 0.9005 0.9058 0.9110 0.9162 0.9215 0.9267 0.9319 0.9372 0.9424 0.9476 0.9529 0.9581 0.9634 0.9686 0.9738 0.9791 0.9843 0.9895 0.9948 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.17.8.2 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0714 0.1429 0.2143 0.2857 0.3571 0.4286 0.5000 0.5714 0.6429 0.7143 0.7857 0.8571 0.9286 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0625 0.1250 0.1875 0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250 0.6875 0.7500 0.8125 0.8750 0.9375 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0526 0.1053 0.1579 0.2105 0.2632 0.3158 0.3684 0.4211 0.4737 0.5263 0.5789 0.6316 0.6842 0.7368 0.7895 0.8421 0.8947 0.9474 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0625 0.1250 0.1875 0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250 0.6875 0.7500 0.8125 0.8750 0.9375 1.0000 0.0455 0.0909 0.1364 0.1818 0.2273 0.2727 0.3182 0.3636 0.4091 0.4545 0.5000 0.5455 0.5909 0.6364 0.6818 0.7273 0.7727 0.8182 0.8636 0.9091 0.9545 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.17.8.3 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY b ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0105 0.0105 0.0209 0.0209 0.0314 0.0314 0.0366 0.0419 0.0471 0.0628 0.0628 0.0628 0.0785 0.0785 0.0785 0.0942 0.0942 0.0942 0.0995 0.1099 0.1099 0.1257 0.1257 0.1257 0.1361 0.1361 0.1414 0.1571 0.1571 0.1571 0.1728 0.1728 0.1728 0.1780 0.1832 0.1885 0.1990 0.1990 0.2094 0.2094 0.2199 0.2199 0.2251 0.2304 0.2408 0.2408 0.2513 0.2513 0.2565 0.2723 0.2723 0.2723 0.2880 0.2880 0.2880 0.2984 0.2984 0.3037 0.3246 0.3246 0.3246 0.3246 0.3455 0.3455 0.3455 0.3455 0.3560 0.3560 0.3770 0.3770 0.3770 0.3770 0.3874 0.3874 0.3979 0.3979 0.4136 0.4136 0.4136 0.4188 0.4293 0.4293 0.4346 0.4450 0.4450 0.4555 0.4555 0.4660 0.4660 0.4869 0.4869 0.4869 0.4869 0.4921 0.4974 0.5026 0.5079 0.5131 0.5183 0.5288 0.5288 0.5445 0.5445 0.5445 0.5497 0.5707 0.5707 0.5707 0.5707 0.5916 0.5916 0.5916 0.5916 0.5969 0.6073 0.6073 0.6178 0.6178 0.6230 0.6283 0.6440 0.6440 0.6440 0.6492 0.6545 0.6597 0.6649 0.6702 0.6859 0.6859 0.6859 0.7016 0.7016 0.7016 0.7173 0.7173 0.7173 0.7330 0.7330 0.7330 0.7382 0.7487 0.7487 0.7592 0.7592 0.7644 0.7749 0.7749 0.7906 0.7906 0.7906 0.7958 0.8010 0.8220 0.8220 0.8220 0.8220 0.8377 0.8377 0.8377 0.8429 0.8534 0.8534 0.8586 0.8743 0.8743 0.8743 0.8901 0.8901 0.8901 0.9162 0.9162 0.9162 0.9162 0.9162 0.9319 0.9319 0.9319 0.9372 0.9529 0.9529 0.9529 0.9686 0.9686 0.9686 0.9791 0.9791 0.9895 0.9895 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.17.8.4 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0714 0.1429 0.3571 0.3571 0.3571 0.4286 0.5000 0.5714 0.6429 0.7857 0.7857 1.0000 1.0000 1.0000 0.0952 0.0952 0.1905 0.1905 0.2857 0.2857 0.3810 0.3810 0.4762 0.4762 0.5238 0.6190 0.6190 0.7619 0.7619 0.7619 1.0000 1.0000 1.0000 1.0000 1.0000 0.1250 0.1250 0.3125 0.3125 0.3125 0.4375 0.4375 0.5000 0.5625 0.6250 0.7500 0.7500 0.9375 0.9375 0.9375 1.0000 0.0952 0.0952 0.1905 0.1905 0.2857 0.2857 0.4762 0.4762 0.4762 0.4762 0.5714 0.5714 0.6190 0.6667 0.8095 0.8095 0.8095 0.8571 1.0000 1.0000 1.0000 0.0526 0.1053 0.1579 0.3684 0.3684 0.3684 0.3684 0.4737 0.4737 0.5263 0.5789 0.7368 0.7368 0.7368 0.9474 0.9474 0.9474 0.9474 1.0000 0.0476 0.1905 0.1905 0.1905 0.2381 0.3333 0.3333 0.4286 0.4286 0.5714 0.5714 0.5714 0.7143 0.7143 0.7143 0.8571 0.8571 0.8571 1.0000 1.0000 1.0000 0.0476 0.1905 0.1905 0.1905 0.2857 0.2857 0.4762 0.4762 0.4762 0.4762 0.5714 0.5714 0.7143 0.7143 0.7143 0.7619 0.8095 0.8571 1.0000 1.0000 1.0000 0.1500 0.1500 0.1500 0.2000 0.3000 0.3000 0.4000 0.4000 0.6000 0.6000 0.6000 0.6000 0.6500 0.7000 0.8000 0.8000 0.9000 0.9000 1.0000 1.0000 0.1875 0.1875 0.1875 0.2500 0.3750 0.3750 0.6250 0.6250 0.6250 0.6250 0.6875 0.8125 0.8125 0.8750 1.0000 1.0000 0.1364 0.1364 0.1364 0.1818 0.3182 0.3182 0.3182 0.4545 0.4545 0.4545 0.5000 0.6818 0.6818 0.6818 0.6818 0.7273 0.7727 0.9091 0.9091 0.9091 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.17.8.5 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY b%10 ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.17.8.6 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.17.8.1 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(100) OVER ( ORDER BY a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 88.0000 89.0000 89.0000 90.0000 90.0000 91.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.17.8.2 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(101) OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 22.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.17.8.3 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(102) OVER ( ORDER BY b,a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 88.0000 89.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.17.8.4 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(103) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 22.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.17.8.5 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(104) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000 103.0000 104.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.17.8.6 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(105) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.17.8.7 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(105) OVER ( ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 88.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000 103.0000 104.0000 105.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+do_execsql_test 1.17.9.1 {
+  SELECT last_value(a+b) OVER ( ORDER BY a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   {}   {}   {}   {}}
+
+do_execsql_test 1.17.9.2 {
+  SELECT last_value(a+b) OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {223   223   223   223   223   223   223   223   223   223   {}   {}   {}
+  {}   210   210   210   210   210   210   210   210   210   210   210   210
+  210   210   210   210   210   {}   {}   {}   {}   280   280   280   280
+  280   280   280   280   280   280   280   280   {}   {}   {}   {}   279
+  279   279   279   279   279   279   279   279   279   279   279   279   279
+  279   279   279   {}   {}   {}   {}   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   {}   {}   {}   {}
+  274   274   274   274   274   274   274   274   274   274   274   274   274
+  274   274   274   274   {}   {}   {}   {}   212   212   212   212   212
+  212   212   212   212   212   212   212   212   212   212   212   212   {}
+  {}   {}   {}   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   {}   {}   {}   {}   232   232   232
+  232   232   232   232   232   232   232   232   232   {}   {}   {}   {}
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   {}   {}   {}   {}}
+
+do_execsql_test 1.17.9.3 {
+  SELECT last_value(a+b) OVER ( ORDER BY b,a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   {}   {}   {}   {}}
+
+do_execsql_test 1.17.9.4 {
+  SELECT last_value(a+b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {240   240   240   240   240   240   240   240   240   240   {}   {}   {}
+  {}   263   263   263   263   263   263   263   263   263   263   263   263
+  263   263   263   263   263   {}   {}   {}   {}   280   280   280   280
+  280   280   280   280   280   280   280   280   {}   {}   {}   {}   252
+  252   252   252   252   252   252   252   252   252   252   252   252   252
+  252   252   252   {}   {}   {}   {}   171   171   171   171   171   171
+  171   171   171   171   171   171   171   171   171   {}   {}   {}   {}
+  274   274   274   274   274   274   274   274   274   274   274   274   274
+  274   274   274   274   {}   {}   {}   {}   226   226   226   226   226
+  226   226   226   226   226   226   226   226   226   226   226   226   {}
+  {}   {}   {}   124   124   124   124   124   124   124   124   124   124
+  124   124   124   124   124   124   {}   {}   {}   {}   198   198   198
+  198   198   198   198   198   198   198   198   198   {}   {}   {}   {}
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   {}   {}   {}   {}}
+
+do_execsql_test 1.17.9.5 {
+  SELECT last_value(a+b) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   {}   {}   {}   {}}
+
+do_execsql_test 1.17.9.6 {
+  SELECT last_value(a+b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.17.10.1 {
+  SELECT nth_value(b,b+1) OVER (ORDER BY a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING) FROM t2
+} {74   65   12   4   22   37   15   53   8   16   29   8   34   3   76   73
+  63   90   47   98   47   90   73   20   89   91   22   77   73   42   41
+  32   55   79   51   74   44   81   7   65   8   43   80   8   89   90   29
+  36   15   42   9   9   41   20   16   11   87   20   90   84   80   41   37
+  34   9   75   63   34   8   8   81   95   31   74   36   41   99   90   91
+  99   13   2   35   33   36   38   37   20   75   17   {}   5   34   58   33
+  19   31   50   34   23   {}   72   90   11   85   90   36   2   {}   39
+  27   {}   {}   64   2   74   95   37   {}   58   {}   34   44   {}   {}
+  30   70   47   {}   7   {}   15   {}   {}   12   33   36   99   17   {}
+  {}   44   {}   {}   12   {}   {}   {}   34   {}   {}   {}   {}   36   44
+  {}   30   30   10   {}   {}   {}   {}   {}   30   {}   {}   {}   84   {}
+  {}   {}   {}   {}   {}   {}   7   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.17.10.2 {
+  SELECT nth_value(b,b+1) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   21   {}   {}   {}   31   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   72   {}   {}   {}   82
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   73   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   64   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   76   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   27   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   38   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.17.10.3 {
+  SELECT nth_value(b,b+1) OVER ( ORDER BY b,a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {3   4   6   7   7   8   8   9   10   11   12   12   13   13   14   15   15
+  16   16   19   20   21   22   22   23   24   26   27   27   28   29   29
+  30   30   32   33   33   34   34   34   35   36   36   37   38   38   39
+  39   41   42   43   43   44   46   46   47   47   49   51   52   53   54
+  55   56   56   56   58   58   58   59   59   59   60   61   62   62   64
+  65   65   66   68   69   72   72   73   73   74   75   75   76   77   77
+  78   80   81   81   83   84   84   85   85   87   87   88   89   90   90
+  90   91   91   91   91   93   93   95   95   96   96   97   98   99   99
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.17.10.4 {
+  SELECT nth_value(b,b+1) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   21
+  31   91   91   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   22   32   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   33   33   93   93   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   44   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   65   95   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   46   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   47   57
+  67   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   78   88   98   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   59   59   69   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.17.10.5 {
+  SELECT nth_value(b,b+1) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {85   72   12   84   31   95   33   34   35   5   2   93   51   12   95   15
+  34   96   46   21   95   23   84   31   52   2   34   54   73   33   72
+  16   26   26   63   65   23   84   33   14   72   16   53   3   82   56
+  16   73   6   95   67   47   74   27   65   73   5   85   46   96   77   84
+  7   47   65   8   85   64   95   4   75   98   66   98   7   5   64   89
+  58   28   86   56   66   98   7   5   76   89   89   77   26   58   36   29
+  59   68   46   96   29   {}   89   59   87   96   36   {}   58   9   {}
+  99   36   {}   {}   88   76   58   67   77   {}   79   49   59   37   88
+  {}   {}   {}   28   98   89   {}   39   99   {}   58   {}   {}   {}   69
+  27   {}   {}   59   {}   {}   8   {}   {}   {}   39   59   99   88   {}
+  {}   {}   38   69   {}   {}   {}   {}   59   {}   89   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.17.10.6 {
+  SELECT nth_value(b,b+1) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.17.11.1 {
+  SELECT first_value(b) OVER (ORDER BY a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING) FROM t2
+} {38   68   39   62   91   46   6   99   97   27   46   78   54   97   8   67
+  29   93   84   77   23   16   16   93   65   35   47   7   86   74   61
+  91   85   24   85   43   59   12   32   56   3   91   22   90   55   15
+  28   89   25   47   1   56   40   43   56   16   75   36   89   98   76
+  81   4   94   42   30   78   33   29   53   63   2   87   37   80   84   72
+  41   9   61   73   95   65   13   58   96   98   1   21   74   65   35   5
+  73   11   51   87   41   12   8   20   31   31   15   95   22   73   79
+  88   34   8   11   49   34   90   59   96   60   55   75   77   44   2   7
+  85   57   74   29   70   59   19   39   26   26   47   80   90   36   58
+  47   9   72   72   66   33   93   75   64   81   9   23   37   13   12   14
+  62   91   36   91   33   15   34   36   99   3   95   69   58   52   30
+  50   84   10   84   33   21   39   44   58   30   38   34   83   27   82
+  17   7   {}   {}   {}   {}}
+
+do_execsql_test 1.17.11.2 {
+  SELECT first_value(b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING) FROM t2
+} {20   90   60   70   80   90   30   50   10   30   {}   {}   {}   {}   91
+  1   81   41   61   1   21   11   51   41   31   31   11   81   91   91   21
+  {}   {}   {}   {}   42   2   72   12   22   2   72   72   12   62   52   82
+  {}   {}   {}   {}   3   43   33   53   63   73   13   73   73   33   93
+  23   13   33   3   33   83   {}   {}   {}   {}   4   94   84   74   34   34
+  44   74   64   14   34   84   84   44   34   {}   {}   {}   {}   55   15
+  25   75   95   65   65   35   5   15   95   55   75   85   75   15   95
+  {}   {}   {}   {}   16   16   86   56   56   56   16   36   76   96   96
+  26   26   36   66   36   36   {}   {}   {}   {}   77   47   7   47   87
+  37   87   77   7   57   47   47   37   27   17   7   {}   {}   {}   {}   28
+  98   78   58   98   8   88   8   58   58   58   38   {}   {}   {}   {}   29
+  59   89   89   29   9   79   49   59   29   59   19   39   9   9   99   69
+  39   {}   {}   {}   {}}
+
+do_execsql_test 1.17.11.3 {
+  SELECT first_value(b) OVER ( ORDER BY b,a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {3   3   4   5   6   7   7   7   8   8   8   9   9   9   10   11   11   12
+  12   12   13   13   14   15   15   15   16   16   16   17   19   20   21
+  21   22   22   23   23   24   25   26   26   27   27   28   29   29   29
+  30   30   30   31   31   32   33   33   33   33   34   34   34   34   35
+  35   36   36   36   36   37   37   38   38   39   39   39   40   41   41
+  42   43   43   44   44   46   46   47   47   47   47   49   50   51   52
+  53   54   55   55   56   56   56   57   58   58   58   58   59   59   59
+  59   60   61   61   62   62   63   64   65   65   65   66   67   68   69
+  70   72   72   72   73   73   73   74   74   74   75   75   75   76   77
+  77   78   78   79   80   80   81   81   81   82   83   84   84   84   84
+  85   85   85   86   87   87   88   89   89   89   90   90   90   91   91
+  91   91   91   93   93   93   94   95   95   95   96   96   96   97   97
+  98   98   99   99   {}   {}   {}   {}}
+
+do_execsql_test 1.17.11.4 {
+  SELECT first_value(b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {30   40   50   60   70   80   80   90   90   90   {}   {}   {}   {}   21
+  21   31   31   41   41   51   61   61   81   81   81   91   91   91   91
+  91   {}   {}   {}   {}   12   22   22   32   42   52   62   62   72   72
+  72   82   {}   {}   {}   {}   23   23   33   33   33   33   43   43   53
+  63   73   73   73   83   93   93   93   {}   {}   {}   {}   34   34   34
+  44   44   54   64   74   74   74   84   84   84   84   94   {}   {}   {}
+  {}   25   35   35   55   55   65   65   65   75   75   75   85   85   85
+  95   95   95   {}   {}   {}   {}   26   26   36   36   36   36   46   46
+  56   56   56   66   76   86   96   96   96   {}   {}   {}   {}   27   27
+  37   37   47   47   47   47   57   67   77   77   87   87   97   97   {}
+  {}   {}   {}   38   38   58   58   58   58   68   78   78   88   98   98
+  {}   {}   {}   {}   29   29   29   39   39   39   49   59   59   59   59
+  69   79   89   89   89   99   99   {}   {}   {}   {}}
+
+do_execsql_test 1.17.11.5 {
+  SELECT first_value(b) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {20   90   60   70   80   90   30   50   10   30   81   91   61   91   91
+  1   81   41   61   1   21   11   51   41   31   31   11   81   91   91   21
+  62   12   32   22   42   2   72   12   22   2   72   72   12   62   52   82
+  93   23   93   43   3   43   33   53   63   73   13   73   73   33   93
+  23   13   33   3   33   83   54   84   74   24   4   94   84   74   34   34
+  44   74   64   14   34   84   84   44   34   65   35   85   85   55   15
+  25   75   95   65   65   35   5   15   95   55   75   85   75   15   95
+  96   46   6   46   16   16   86   56   56   56   16   36   76   96   96
+  26   26   36   66   36   36   97   27   97   67   77   47   7   47   87
+  37   87   77   7   57   47   47   37   27   17   7   38   68   78   8   28
+  98   78   58   98   8   88   8   58   58   58   38   89   59   39   99   29
+  59   89   89   29   9   79   49   59   29   59   19   39   9   9   99   69
+  39   {}   {}   {}   {}}
+
+do_execsql_test 1.17.11.6 {
+  SELECT first_value(b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.17.12.1 {
+  SELECT lead(b,b) OVER (ORDER BY a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING) FROM t2
+} {96   9   11   89   32   53   91   30   51   56   54   73   22   59   75
+  74   78   8   16   65   15   8   31   87   90   12   32   96   74   76   37
+  85   90   15   35   2   60   36   75   9   51   47   63   51   90   26   42
+  26   8   76   80   90   37   87   56   79   5   87   8   2   39   73   64
+  36   90   72   78   36   73   51   33   20   41   2   26   37   33   8   14
+  33   81   55   1   9   12   39   64   87   72   34   82   21   34   99   62
+  74   41   69   22   75   27   58   8   79   77   26   26   55   {}   29
+  30   7   {}   66   55   2   34   64   {}   33   {}   44   84   {}   {}   95
+  85   19   {}   83   {}   91   {}   {}   9   50   91   33   34   {}   {}
+  84   {}   7   9   {}   {}   {}   44   {}   {}   {}   {}   91   84   {}   95
+  95   52   {}   {}   {}   {}   {}   21   {}   {}   {}   58   {}   {}   {}
+  {}   {}   {}   {}   83   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}}
+
+do_execsql_test 1.17.12.2 {
+  SELECT lead(b,b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   81   {}   {}   {}   21   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   62   {}   {}   {}   12   {}   {}   {}   72
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   53   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   34   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   95   {}   {}   {}   {}   {}   {}   85   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   56   {}   36   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   57   {}   {}   {}   {}   {}   7   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   8   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.17.12.3 {
+  SELECT lead(b,b) OVER ( ORDER BY b,a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {1   2   3   3   5   6   7   8   8   9   9   10   11   12   12   13   13
+  14   15   16   16   17   19   20   21   22   23   24   25   26   27   27
+  28   29   30   31   32   33   33   33   34   34   35   36   36   36   37
+  38   39   39   40   41   42   43   43   44   46   47   47   47   49   50
+  52   53   54   55   56   56   57   58   58   58   59   59   59   60   61
+  62   62   64   65   65   67   69   70   72   72   73   74   74   75   75
+  75   77   78   80   81   81   83   84   84   85   85   85   87   88   89
+  89   89   90   90   91   91   91   93   93   94   95   95   96   97   97
+  98   99   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.17.12.4 {
+  SELECT lead(b,b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {80   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   1
+  11   81   81   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   12   12   72   82   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   13   23   73   73   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   34   84   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   35   85   85   95   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   36   86   96   96   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   37   47
+  47   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   58   58   68   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   39   49   59   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.17.12.5 {
+  SELECT lead(b,b) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {34   72   91   74   21   55   23   94   84   95   2   13   61   22   55
+  55   94   85   75   81   65   73   74   21   72   12   94   33   63   73
+  72   96   36   76   3   25   62   3   73   34   12   46   43   93   72   16
+  86   63   15   65   36   77   24   57   25   53   95   34   95   16   97
+  74   97   67   25   98   44   34   65   54   5   68   96   28   47   95
+  34   39   8   38   6   46   96   28   47   95   56   39   99   97   76   8
+  26   9   79   27   95   16   29   {}   58   58   77   85   56   {}   98
+  29   {}   19   96   {}   {}   78   56   98   36   97   {}   89   89   29
+  47   78   {}   {}   {}   38   68   58   {}   58   38   {}   98   {}   {}
+  {}   39   57   9   {}   79   {}   {}   7   {}   {}   {}   9   29   38   78
+  {}   {}   {}   8   39   {}   {}   {}   {}   59   {}   99   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.17.12.6 {
+  SELECT lead(b,b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.17.13.1 {
+  SELECT lag(b,b) OVER (ORDER BY a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   38   {}   {}   {}   {}
+  {}   {}   {}   6   {}   {}   {}   {}   {}   81   46   6   {}   {}   {}   {}
+  23   {}   {}   {}   {}   {}   27   {}   {}   {}   35   6   {}   12   {}
+  23   {}   {}   61   84   {}   93   39   47   {}   54   46   96   56   {}
+  16   {}   {}   {}   {}   89   {}   16   43   {}   85   56   29   99   53
+  {}   59   {}   {}   91   59   53   84   99   {}   93   63   47   {}   {}
+  98   33   67   35   75   1   23   13   55   27   75   98   35   73   63   2
+  21   27   13   24   86   23   84   31   20   94   61   65   75   23   36
+  94   55   90   41   77   96   56   29   40   12   89   63   11   5   73
+  79   1   16   28   31   73   5   39   53   63   41   11   40   2   13   33
+  9   29   90   47   72   9   73   30   44   33   74   93   29   74   42   34
+  63   41   34   96   47   77   1   36   74   72   14   36   26   77   9   72
+  64   8   91   31   52   30}
+
+do_execsql_test 1.17.13.2 {
+  SELECT lag(b,b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   61   {}   81   {}   {}   {}   {}
+  1   {}   {}   {}   {}   {}   {}   {}   {}   {}   22   {}   {}   {}   12
+  {}   {}   62   {}   {}   {}   {}   {}   {}   {}   23   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   43   {}   23   {}   {}   {}   {}   {}
+  {}   54   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   75   {}
+  {}   {}   {}   {}   {}   55   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   47   {}   {}   {}   {}
+  {}   27   7   {}   {}   {}   {}   {}   {}   {}   {}   {}   68   {}   8   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   89   {}   {}
+  {}   {}   {}   {}   {}   29   9   {}   {}   {}}
+
+do_execsql_test 1.17.13.3 {
+  SELECT lag(b,b) OVER ( ORDER BY b,a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {{}   1   1   1   1   2   2   2   2   2   2   3   3   3   4   4   5   6   6
+  6   7   7   7   7   7   8   8   8   8   8   8   9   9   9   9   9   9   9
+  9   9   9   10   10   10   10   11   11   11   11   11   12   12   12   12
+  13   13   13   13   13   14   15   15   15   15   16   16   16   16   16
+  17   19   20   20   21   21   21   21   22   22   22   22   23   23   23
+  23   23   24   23   24   24   25   26   26   26   26   26   26   26   26
+  26   26   26   27   27   27   27   28   29   29   29   29   30   30   30
+  30   30   30   31   31   31   31   31   32   32   32   32   32   32   31
+  32   33   33   33   33   33   33   34   34   34   34   34   34   34   34
+  35   35   35   35   35   36   36   36   36   36   36   36   37   37   37
+  38   38   38   38   38   38   39   39   39   39   40   40   41   41   42
+  43   42   43   43   43   43   44   44   44   46   46   46   47   47   47
+  47   47}
+
+do_execsql_test 1.17.13.4 {
+  SELECT lag(b,b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  1   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.17.13.5 {
+  SELECT lag(b,b) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   61   80   81   {}   {}   {}   {}
+  1   {}   {}   {}   30   {}   21   90   61   {}   22   {}   11   41   12
+  {}   {}   62   {}   {}   {}   {}   31   {}   50   23   30   21   90   {}
+  {}   62   {}   {}   81   {}   22   43   62   23   32   {}   91   {}   90
+  93   54   {}   {}   90   72   12   22   90   81   83   23   80   20   72
+  43   51   33   80   90   2   34   54   1   20   62   12   13   75   44   30
+  93   91   1   21   55   61   61   13   85   3   65   65   91   73   33   93
+  55   84   62   31   11   65   35   85   33   55   15   12   75   22   3
+  73   65   36   85   43   95   43   13   47   44   65   65   96   36   27
+  7   46   34   94   47   36   73   34   35   73   68   24   8   75   85   75
+  66   34   95   36   84   77   46   34   84   47   89   65   36   16   38
+  76   58   57   29   9   44   56   17}
+
+do_execsql_test 1.17.13.6 {
+  SELECT lag(b,b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.17.14.1 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (ORDER BY a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING) FROM t2
+} {38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
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+  96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  33.21.39.44.58.30.38.34.83.27.82.17.7   21.39.44.58.30.38.34.83.27.82.17.7
+  39.44.58.30.38.34.83.27.82.17.7   44.58.30.38.34.83.27.82.17.7
+  58.30.38.34.83.27.82.17.7   30.38.34.83.27.82.17.7   38.34.83.27.82.17.7
+  34.83.27.82.17.7   83.27.82.17.7   27.82.17.7   82.17.7   17.7   7   {}
+  {}   {}   {}}
+
+do_execsql_test 1.17.14.2 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING) FROM t2
+} {20.90.60.70.80.90.30.50.10.30   90.60.70.80.90.30.50.10.30
+  60.70.80.90.30.50.10.30   70.80.90.30.50.10.30   80.90.30.50.10.30
+  90.30.50.10.30   30.50.10.30   50.10.30   10.30   30   {}   {}   {}   {}
+  91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  61.1.21.11.51.41.31.31.11.81.91.91.21   1.21.11.51.41.31.31.11.81.91.91.21
+  21.11.51.41.31.31.11.81.91.91.21   11.51.41.31.31.11.81.91.91.21
+  51.41.31.31.11.81.91.91.21   41.31.31.11.81.91.91.21   31.31.11.81.91.91.21
+  31.11.81.91.91.21   11.81.91.91.21   81.91.91.21   91.91.21   91.21   21
+  {}   {}   {}   {}   42.2.72.12.22.2.72.72.12.62.52.82
+  2.72.12.22.2.72.72.12.62.52.82   72.12.22.2.72.72.12.62.52.82
+  12.22.2.72.72.12.62.52.82   22.2.72.72.12.62.52.82   2.72.72.12.62.52.82
+  72.72.12.62.52.82   72.12.62.52.82   12.62.52.82   62.52.82   52.82   82
+  {}   {}   {}   {}   3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  33.53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  63.73.13.73.73.33.93.23.13.33.3.33.83   73.13.73.73.33.93.23.13.33.3.33.83
+  13.73.73.33.93.23.13.33.3.33.83   73.73.33.93.23.13.33.3.33.83
+  73.33.93.23.13.33.3.33.83   33.93.23.13.33.3.33.83   93.23.13.33.3.33.83
+  23.13.33.3.33.83   13.33.3.33.83   33.3.33.83   3.33.83   33.83   83   {}
+  {}   {}   {}   4.94.84.74.34.34.44.74.64.14.34.84.84.44.34
+  94.84.74.34.34.44.74.64.14.34.84.84.44.34
+  84.74.34.34.44.74.64.14.34.84.84.44.34
+  74.34.34.44.74.64.14.34.84.84.44.34   34.34.44.74.64.14.34.84.84.44.34
+  34.44.74.64.14.34.84.84.44.34   44.74.64.14.34.84.84.44.34
+  74.64.14.34.84.84.44.34   64.14.34.84.84.44.34   14.34.84.84.44.34
+  34.84.84.44.34   84.84.44.34   84.44.34   44.34   34   {}   {}   {}   {}
+  55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  95.65.65.35.5.15.95.55.75.85.75.15.95   65.65.35.5.15.95.55.75.85.75.15.95
+  65.35.5.15.95.55.75.85.75.15.95   35.5.15.95.55.75.85.75.15.95
+  5.15.95.55.75.85.75.15.95   15.95.55.75.85.75.15.95   95.55.75.85.75.15.95
+  55.75.85.75.15.95   75.85.75.15.95   85.75.15.95   75.15.95   15.95   95
+  {}   {}   {}   {}   16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  56.56.16.36.76.96.96.26.26.36.66.36.36
+  56.16.36.76.96.96.26.26.36.66.36.36   16.36.76.96.96.26.26.36.66.36.36
+  36.76.96.96.26.26.36.66.36.36   76.96.96.26.26.36.66.36.36
+  96.96.26.26.36.66.36.36   96.26.26.36.66.36.36   26.26.36.66.36.36
+  26.36.66.36.36   36.66.36.36   66.36.36   36.36   36   {}   {}   {}   {}
+  77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  47.87.37.87.77.7.57.47.47.37.27.17.7   87.37.87.77.7.57.47.47.37.27.17.7
+  37.87.77.7.57.47.47.37.27.17.7   87.77.7.57.47.47.37.27.17.7
+  77.7.57.47.47.37.27.17.7   7.57.47.47.37.27.17.7   57.47.47.37.27.17.7
+  47.47.37.27.17.7   47.37.27.17.7   37.27.17.7   27.17.7   17.7   7   {}
+  {}   {}   {}   28.98.78.58.98.8.88.8.58.58.58.38
+  98.78.58.98.8.88.8.58.58.58.38   78.58.98.8.88.8.58.58.58.38
+  58.98.8.88.8.58.58.58.38   98.8.88.8.58.58.58.38   8.88.8.58.58.58.38
+  88.8.58.58.58.38   8.58.58.58.38   58.58.58.38   58.58.38   58.38   38   {}
+  {}   {}   {}   29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  9.79.49.59.29.59.19.39.9.9.99.69.39   79.49.59.29.59.19.39.9.9.99.69.39
+  49.59.29.59.19.39.9.9.99.69.39   59.29.59.19.39.9.9.99.69.39
+  29.59.19.39.9.9.99.69.39   59.19.39.9.9.99.69.39   19.39.9.9.99.69.39
+  39.9.9.99.69.39   9.9.99.69.39   9.99.69.39   99.69.39   69.39   39   {}
+  {}   {}   {}}
+
+do_execsql_test 1.17.14.3 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( ORDER BY b,a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
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+  91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
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+  91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  94.95.95.95.96.96.96.97.97.98.98.99.99
+  95.95.95.96.96.96.97.97.98.98.99.99   95.95.96.96.96.97.97.98.98.99.99
+  95.96.96.96.97.97.98.98.99.99   96.96.96.97.97.98.98.99.99
+  96.96.97.97.98.98.99.99   96.97.97.98.98.99.99   97.97.98.98.99.99
+  97.98.98.99.99   98.98.99.99   98.99.99   99.99   99   {}   {}   {}   {}}
+
+do_execsql_test 1.17.14.4 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {30.40.50.60.70.80.80.90.90.90   40.50.60.70.80.80.90.90.90
+  50.60.70.80.80.90.90.90   60.70.80.80.90.90.90   70.80.80.90.90.90
+  80.80.90.90.90   80.90.90.90   90.90.90   90.90   90   {}   {}   {}   {}
+  21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  41.41.51.61.61.81.81.81.91.91.91.91.91
+  41.51.61.61.81.81.81.91.91.91.91.91   51.61.61.81.81.81.91.91.91.91.91
+  61.61.81.81.81.91.91.91.91.91   61.81.81.81.91.91.91.91.91
+  81.81.81.91.91.91.91.91   81.81.91.91.91.91.91   81.91.91.91.91.91
+  91.91.91.91.91   91.91.91.91   91.91.91   91.91   91   {}   {}   {}   {}
+  12.22.22.32.42.52.62.62.72.72.72.82   22.22.32.42.52.62.62.72.72.72.82
+  22.32.42.52.62.62.72.72.72.82   32.42.52.62.62.72.72.72.82
+  42.52.62.62.72.72.72.82   52.62.62.72.72.72.82   62.62.72.72.72.82
+  62.72.72.72.82   72.72.72.82   72.72.82   72.82   82   {}   {}   {}   {}
+  23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  33.33.43.43.53.63.73.73.73.83.93.93.93
+  33.43.43.53.63.73.73.73.83.93.93.93   43.43.53.63.73.73.73.83.93.93.93
+  43.53.63.73.73.73.83.93.93.93   53.63.73.73.73.83.93.93.93
+  63.73.73.73.83.93.93.93   73.73.73.83.93.93.93   73.73.83.93.93.93
+  73.83.93.93.93   83.93.93.93   93.93.93   93.93   93   {}   {}   {}   {}
+  34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  34.44.44.54.64.74.74.74.84.84.84.84.94
+  44.44.54.64.74.74.74.84.84.84.84.94   44.54.64.74.74.74.84.84.84.84.94
+  54.64.74.74.74.84.84.84.84.94   64.74.74.74.84.84.84.84.94
+  74.74.74.84.84.84.84.94   74.74.84.84.84.84.94   74.84.84.84.84.94
+  84.84.84.84.94   84.84.84.94   84.84.94   84.94   94   {}   {}   {}   {}
+  25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  55.65.65.65.75.75.75.85.85.85.95.95.95
+  65.65.65.75.75.75.85.85.85.95.95.95   65.65.75.75.75.85.85.85.95.95.95
+  65.75.75.75.85.85.85.95.95.95   75.75.75.85.85.85.95.95.95
+  75.75.85.85.85.95.95.95   75.85.85.85.95.95.95   85.85.85.95.95.95
+  85.85.95.95.95   85.95.95.95   95.95.95   95.95   95   {}   {}   {}   {}
+  26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  36.36.46.46.56.56.56.66.76.86.96.96.96
+  36.46.46.56.56.56.66.76.86.96.96.96   46.46.56.56.56.66.76.86.96.96.96
+  46.56.56.56.66.76.86.96.96.96   56.56.56.66.76.86.96.96.96
+  56.56.66.76.86.96.96.96   56.66.76.86.96.96.96   66.76.86.96.96.96
+  76.86.96.96.96   86.96.96.96   96.96.96   96.96   96   {}   {}   {}   {}
+  27.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  37.47.47.47.47.57.67.77.77.87.87.97.97
+  47.47.47.47.57.67.77.77.87.87.97.97   47.47.47.57.67.77.77.87.87.97.97
+  47.47.57.67.77.77.87.87.97.97   47.57.67.77.77.87.87.97.97
+  57.67.77.77.87.87.97.97   67.77.77.87.87.97.97   77.77.87.87.97.97
+  77.87.87.97.97   87.87.97.97   87.97.97   97.97   97   {}   {}   {}   {}
+  38.38.58.58.58.58.68.78.78.88.98.98   38.58.58.58.58.68.78.78.88.98.98
+  58.58.58.58.68.78.78.88.98.98   58.58.58.68.78.78.88.98.98
+  58.58.68.78.78.88.98.98   58.68.78.78.88.98.98   68.78.78.88.98.98
+  78.78.88.98.98   78.88.98.98   88.98.98   98.98   98   {}   {}   {}   {}
+  29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  39.49.59.59.59.59.69.79.89.89.89.99.99
+  49.59.59.59.59.69.79.89.89.89.99.99   59.59.59.59.69.79.89.89.89.99.99
+  59.59.59.69.79.89.89.89.99.99   59.59.69.79.89.89.89.99.99
+  59.69.79.89.89.89.99.99   69.79.89.89.89.99.99   79.89.89.89.99.99
+  89.89.89.99.99   89.89.99.99   89.99.99   99.99   99   {}   {}   {}   {}}
+
+do_execsql_test 1.17.14.5 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( ORDER BY b%10,a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING ) FROM t2
+} {20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
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+  6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  9.79.49.59.29.59.19.39.9.9.99.69.39   79.49.59.29.59.19.39.9.9.99.69.39
+  49.59.29.59.19.39.9.9.99.69.39   59.29.59.19.39.9.9.99.69.39
+  29.59.19.39.9.9.99.69.39   59.19.39.9.9.99.69.39   19.39.9.9.99.69.39
+  39.9.9.99.69.39   9.9.99.69.39   9.99.69.39   99.69.39   69.39   39   {}
+  {}   {}   {}}
+
+do_execsql_test 1.17.14.6 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.17.14.7 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (win1 ORDER BY b%10 ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING) 
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a)
+    ORDER BY 1
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.17.14.8 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (win1 ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING) 
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a ORDER BY b%10)
+    ORDER BY 1
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.17.14.9 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER win2
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a ORDER BY b%10),
+           win2 AS (win1 ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING)
+    ORDER BY 1
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.17.15.1 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE a%2=0) OVER win FROM t2
+    WINDOW win AS (ORDER BY a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING)
+} {187 38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  186 39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  185 39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  184 91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  183 91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  182 6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  181 6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  180 97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  179 97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  178 46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  177 46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  176 54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  175 54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  174 8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  173 8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  172 29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  171 29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  170 84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  169 84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  168 23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  167 23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  166 16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  165 16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  164 65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  163 65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  162 47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  161 47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  160 86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  159 86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  158 61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  157 61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  156 85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  155 85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  154 85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  153 85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  152 59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  151 59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  150 32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  149 32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  148 3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  147 3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  146 22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  145 22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
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+  72 96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  71 96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  70 55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  69 55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  68 77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  67 77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  66 2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  65 2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  64 85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  63 85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  62 74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  61 74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  60 70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  59 70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  58 19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  57 19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  56 26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  55 26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  54 47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  53 47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  52 90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  51 90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  50 58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  49 58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  48 9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  47 9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  46 72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  45 72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  44 33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  43 33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  42 75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  41 75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  40 81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  39 81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  38 23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  37 23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  36 13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  35 13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  34 14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  33 14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  32 91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  31 91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  30 91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  29 91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  28 15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  27 15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  26 36.3.69.52.50.10.33.39.58.38.83.82.7
+  25 36.3.69.52.50.10.33.39.58.38.83.82.7
+  24 3.69.52.50.10.33.39.58.38.83.82.7   23 3.69.52.50.10.33.39.58.38.83.82.7
+  22 69.52.50.10.33.39.58.38.83.82.7   21 69.52.50.10.33.39.58.38.83.82.7
+  20 52.50.10.33.39.58.38.83.82.7   19 52.50.10.33.39.58.38.83.82.7
+  18 50.10.33.39.58.38.83.82.7   17 50.10.33.39.58.38.83.82.7
+  16 10.33.39.58.38.83.82.7   15 10.33.39.58.38.83.82.7
+  14 33.39.58.38.83.82.7   13 33.39.58.38.83.82.7   12 39.58.38.83.82.7
+  11 39.58.38.83.82.7   10 58.38.83.82.7   9 58.38.83.82.7   8 38.83.82.7
+  7 38.83.82.7   6 83.82.7   5 83.82.7   4 82.7   3 82.7   2 7   1 7   0 {}
+  0 {}   0 {}   0 {}}
+
+do_execsql_test 1.17.15.2 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE 0=1) OVER win FROM t2
+    WINDOW win AS (ORDER BY a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING)
+} {187 {}   186 {}   185 {}   184 {}   183 {}   182 {}   181 {}   180 {}
+  179 {}   178 {}   177 {}   176 {}   175 {}   174 {}   173 {}   172 {}
+  171 {}   170 {}   169 {}   168 {}   167 {}   166 {}   165 {}   164 {}
+  163 {}   162 {}   161 {}   160 {}   159 {}   158 {}   157 {}   156 {}
+  155 {}   154 {}   153 {}   152 {}   151 {}   150 {}   149 {}   148 {}
+  147 {}   146 {}   145 {}   144 {}   143 {}   142 {}   141 {}   140 {}
+  139 {}   138 {}   137 {}   136 {}   135 {}   134 {}   133 {}   132 {}
+  131 {}   130 {}   129 {}   128 {}   127 {}   126 {}   125 {}   124 {}
+  123 {}   122 {}   121 {}   120 {}   119 {}   118 {}   117 {}   116 {}
+  115 {}   114 {}   113 {}   112 {}   111 {}   110 {}   109 {}   108 {}
+  107 {}   106 {}   105 {}   104 {}   103 {}   102 {}   101 {}   100 {}
+  99 {}   98 {}   97 {}   96 {}   95 {}   94 {}   93 {}   92 {}   91 {}
+  90 {}   89 {}   88 {}   87 {}   86 {}   85 {}   84 {}   83 {}   82 {}
+  81 {}   80 {}   79 {}   78 {}   77 {}   76 {}   75 {}   74 {}   73 {}
+  72 {}   71 {}   70 {}   69 {}   68 {}   67 {}   66 {}   65 {}   64 {}
+  63 {}   62 {}   61 {}   60 {}   59 {}   58 {}   57 {}   56 {}   55 {}
+  54 {}   53 {}   52 {}   51 {}   50 {}   49 {}   48 {}   47 {}   46 {}
+  45 {}   44 {}   43 {}   42 {}   41 {}   40 {}   39 {}   38 {}   37 {}
+  36 {}   35 {}   34 {}   33 {}   32 {}   31 {}   30 {}   29 {}   28 {}
+  27 {}   26 {}   25 {}   24 {}   23 {}   22 {}   21 {}   20 {}   19 {}
+  18 {}   17 {}   16 {}   15 {}   14 {}   13 {}   12 {}   11 {}   10 {}
+  9 {}   8 {}   7 {}   6 {}   5 {}   4 {}   3 {}   2 {}   1 {}   0 {}   0 {}
+  0 {}   0 {}}
+
+do_execsql_test 1.17.15.3 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE 1=0) OVER win FROM t2
+    WINDOW win AS (PARTITION BY (a%10) ORDER BY a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING)
+} {16 {}   15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}
+  6 {}   5 {}   4 {}   3 {}   2 {}   1 {}   0 {}   0 {}   0 {}   0 {}   15 {}
+  14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}
+  4 {}   3 {}   2 {}   1 {}   0 {}   0 {}   0 {}   0 {}   15 {}   14 {}
+  13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}   4 {}
+  3 {}   2 {}   1 {}   0 {}   0 {}   0 {}   0 {}   15 {}   14 {}   13 {}
+  12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}   4 {}   3 {}
+  2 {}   1 {}   0 {}   0 {}   0 {}   0 {}   15 {}   14 {}   13 {}   12 {}
+  11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}   4 {}   3 {}   2 {}
+  1 {}   0 {}   0 {}   0 {}   0 {}   15 {}   14 {}   13 {}   12 {}   11 {}
+  10 {}   9 {}   8 {}   7 {}   6 {}   5 {}   4 {}   3 {}   2 {}   1 {}   0 {}
+  0 {}   0 {}   0 {}   15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}
+  8 {}   7 {}   6 {}   5 {}   4 {}   3 {}   2 {}   1 {}   0 {}   0 {}   0 {}
+  0 {}   15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}
+  6 {}   5 {}   4 {}   3 {}   2 {}   1 {}   0 {}   0 {}   0 {}   0 {}   15 {}
+  14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}
+  4 {}   3 {}   2 {}   1 {}   0 {}   0 {}   0 {}   0 {}   15 {}   14 {}
+  13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}   4 {}
+  3 {}   2 {}   1 {}   0 {}   0 {}   0 {}   0 {}}
+
+do_execsql_test 1.17.15.4 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE a%2=0) OVER win FROM t2
+    WINDOW win AS (PARTITION BY (a%10) ORDER BY a ROWS BETWEEN 4 FOLLOWING    AND UNBOUNDED FOLLOWING)
+} {16 59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  15 28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  14 75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  13 78.72.98.87.73.96.74.90.75.91.69.39.7
+  12 72.98.87.73.96.74.90.75.91.69.39.7   11 98.87.73.96.74.90.75.91.69.39.7
+  10 87.73.96.74.90.75.91.69.39.7   9 73.96.74.90.75.91.69.39.7
+  8 96.74.90.75.91.69.39.7   7 74.90.75.91.69.39.7   6 90.75.91.69.39.7
+  5 75.91.69.39.7   4 91.69.39.7   3 69.39.7   2 39.7   1 7   0 {}   0 {}
+  0 {}   0 {}   15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}
+  7 {}   6 {}   5 {}   4 {}   3 {}   2 {}   1 {}   0 {}   0 {}   0 {}   0 {}
+  15 32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  14 25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  13 89.29.9.21.12.88.55.70.58.81.91.52.58
+  12 29.9.21.12.88.55.70.58.81.91.52.58   11 9.21.12.88.55.70.58.81.91.52.58
+  10 21.12.88.55.70.58.81.91.52.58   9 12.88.55.70.58.81.91.52.58
+  8 88.55.70.58.81.91.52.58   7 55.70.58.81.91.52.58   6 70.58.81.91.52.58
+  5 58.81.91.52.58   4 81.91.52.58   3 91.52.58   2 52.58   1 58   0 {}
+  0 {}   0 {}   0 {}   15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}
+  8 {}   7 {}   6 {}   5 {}   4 {}   3 {}   2 {}   1 {}   0 {}   0 {}   0 {}
+  0 {}   15 3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  14 1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  13 76.63.73.65.20.8.77.19.9.23.15.50.38
+  12 63.73.65.20.8.77.19.9.23.15.50.38   11 73.65.20.8.77.19.9.23.15.50.38
+  10 65.20.8.77.19.9.23.15.50.38   9 20.8.77.19.9.23.15.50.38
+  8 8.77.19.9.23.15.50.38   7 77.19.9.23.15.50.38   6 19.9.23.15.50.38
+  5 9.23.15.50.38   4 23.15.50.38   3 15.50.38   2 50.38   1 38   0 {}   0 {}
+  0 {}   0 {}   15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}
+  7 {}   6 {}   5 {}   4 {}   3 {}   2 {}   1 {}   0 {}   0 {}   0 {}   0 {}
+  15 22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  14 40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  13 4.87.65.5.31.49.2.26.72.13.36.10.83
+  12 87.65.5.31.49.2.26.72.13.36.10.83   11 65.5.31.49.2.26.72.13.36.10.83
+  10 5.31.49.2.26.72.13.36.10.83   9 31.49.2.26.72.13.36.10.83
+  8 49.2.26.72.13.36.10.83   7 2.26.72.13.36.10.83   6 26.72.13.36.10.83
+  5 72.13.36.10.83   4 13.36.10.83   3 36.10.83   2 10.83   1 83   0 {}
+  0 {}   0 {}   0 {}   15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}
+  8 {}   7 {}   6 {}   5 {}   4 {}   3 {}   2 {}   1 {}   0 {}   0 {}   0 {}
+  0 {}   15 55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  14 56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  13 42.80.58.11.95.90.85.47.33.14.3.33.82
+  12 80.58.11.95.90.85.47.33.14.3.33.82   11 58.11.95.90.85.47.33.14.3.33.82
+  10 11.95.90.85.47.33.14.3.33.82   9 95.90.85.47.33.14.3.33.82
+  8 90.85.47.33.14.3.33.82   7 85.47.33.14.3.33.82   6 47.33.14.3.33.82
+  5 33.14.3.33.82   4 14.3.33.82   3 3.33.82   2 33.82   1 82   0 {}   0 {}
+  0 {}   0 {}   15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}
+  7 {}   6 {}   5 {}   4 {}   3 {}   2 {}   1 {}   0 {}   0 {}   0 {}   0 {}}
+
+do_execsql_test 1.18.2.1 {
+  SELECT max(b) OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2
+} {99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   95   99   99   99   99   95   95   84   84   84   84   84   84
+  84   84   83   83   83   83   82   83   83   83   83}
+
+do_execsql_test 1.18.2.2 {
+  SELECT min(b) OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   2   1   1   1
+  1   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   3   2   2   2   2   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   7   3   3
+  3   3   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7
+  17}
+
+do_execsql_test 1.18.3.1 {
+  SELECT row_number() OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.18.3.2 {
+  SELECT row_number() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.18.3.3 {
+  SELECT row_number() OVER ( ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.18.4.1 {
+  SELECT dense_rank() OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.18.4.2 {
+  SELECT dense_rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.18.4.3 {
+  SELECT dense_rank() OVER ( ORDER BY b ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2
+} {1   1   2   2   3   3   4   5   6   7   7   7   8   8   8   9   9   9   10
+  11   11   12   12   12   13   13   14   15   15   15   16   16   16   17
+  18   19   20   20   21   21   22   22   23   24   25   25   26   26   27
+  28   28   28   29   29   29   30   30   31   32   32   32   32   33   33
+  33   33   34   34   35   35   35   35   36   36   37   37   38   38   38
+  39   40   40   41   42   42   43   43   44   44   45   45   45   45   46
+  47   48   49   50   51   52   52   53   53   53   54   55   55   55   55
+  56   56   56   56   57   58   58   59   59   60   61   62   62   62   63
+  64   65   66   67   68   68   68   69   69   69   70   70   70   71   71
+  71   72   73   73   74   74   75   76   76   77   77   77   78   79   80
+  80   80   80   81   81   81   82   83   83   84   85   85   85   86   86
+  86   87   87   87   87   87   88   88   88   89   90   90   90   91   91
+  91   92   92   93   93   94   94}
+
+do_execsql_test 1.18.4.4 {
+  SELECT dense_rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2
+} {1   2   3   3   3   4   5   6   7   8   8   9   9   9   1   1   2   2   3
+  3   4   4   5   5   6   7   7   8   8   8   9   9   9   9   9   1   1   2
+  2   2   3   3   4   5   6   7   7   8   8   8   9   1   1   2   2   3   3
+  4   4   4   4   5   5   6   7   8   8   8   9   10   10   10   1   2   3
+  4   4   4   4   5   5   6   7   8   8   8   9   9   9   9   10   1   2   2
+  2   3   4   4   5   5   6   6   6   7   7   7   8   8   8   9   9   9   1
+  2   2   2   3   3   4   4   4   4   5   5   6   6   6   7   8   9   10   10
+  10   1   1   1   2   3   3   4   4   5   5   5   5   6   7   8   8   9   9
+  10   10   1   1   1   2   3   3   4   4   4   4   5   6   6   7   8   8   1
+  1   1   2   3   3   3   4   4   4   5   6   6   6   6   7   8   9   9   9
+  10   10}
+
+do_execsql_test 1.18.4.5 {
+  SELECT dense_rank() OVER ( ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   4   4   4   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5   5   5   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   6   6   6   6
+  6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   7   7
+  7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7
+  8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8
+  8   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   10   10
+  10   10   10   10   10   10   10   10   10   10   10   10   10   10   10
+  10   10   10   10   10}
+
+do_execsql_test 1.18.4.6 {
+  SELECT dense_rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   3   3   3   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   4   4   4   4   4   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   5   5   5   5   5   5
+  5   5   5   5   5   5   5   5   5   5   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5
+  5}
+
+do_execsql_test 1.18.5.1 {
+  SELECT rank() OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.18.5.2 {
+  SELECT rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.18.5.3 {
+  SELECT rank() OVER ( ORDER BY b ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2
+} {1   1   3   3   5   5   7   8   9   10   10   10   13   13   13   16   16
+  16   19   20   20   22   22   22   25   25   27   28   28   28   31   31
+  31   34   35   36   37   37   39   39   41   41   43   44   45   45   47
+  47   49   50   50   50   53   53   53   56   56   58   59   59   59   59
+  63   63   63   63   67   67   69   69   69   69   73   73   75   75   77
+  77   77   80   81   81   83   84   84   86   86   88   88   90   90   90
+  90   94   95   96   97   98   99   100   100   102   102   102   105   106
+  106   106   106   110   110   110   110   114   115   115   117   117   119
+  120   121   121   121   124   125   126   127   128   129   129   129   132
+  132   132   135   135   135   138   138   138   141   142   142   144   144
+  146   147   147   149   149   149   152   153   154   154   154   154   158
+  158   158   161   162   162   164   165   165   165   168   168   168   171
+  171   171   171   171   176   176   176   179   180   180   180   183   183
+  183   186   186   188   188   190   190}
+
+do_execsql_test 1.18.5.4 {
+  SELECT rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2
+} {1   2   3   3   3   6   7   8   9   10   10   12   12   12   1   1   3   3
+  5   5   7   7   9   9   11   12   12   14   14   14   17   17   17   17
+  17   1   1   3   3   3   6   6   8   9   10   11   11   13   13   13   16
+  1   1   3   3   5   5   7   7   7   7   11   11   13   14   15   15   15
+  18   19   19   19   1   2   3   4   4   4   4   8   8   10   11   12   12
+  12   15   15   15   15   19   1   2   2   2   5   6   6   8   8   10   10
+  10   13   13   13   16   16   16   19   19   19   1   2   2   2   5   5   7
+  7   7   7   11   11   13   13   13   16   17   18   19   19   19   1   1
+  1   4   5   5   7   7   9   9   9   9   13   14   15   15   17   17   19
+  19   1   1   1   4   5   5   7   7   7   7   11   12   12   14   15   15
+  1   1   1   4   5   5   5   8   8   8   11   12   12   12   12   16   17
+  18   18   18   21   21}
+
+do_execsql_test 1.18.5.5 {
+  SELECT rank() OVER ( ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   15   15   15   15
+  15   15   15   15   15   15   15   15   15   15   15   15   15   15   15
+  15   15   36   36   36   36   36   36   36   36   36   36   36   36   36
+  36   36   36   52   52   52   52   52   52   52   52   52   52   52   52
+  52   52   52   52   52   52   52   52   52   73   73   73   73   73   73
+  73   73   73   73   73   73   73   73   73   73   73   73   73   92   92
+  92   92   92   92   92   92   92   92   92   92   92   92   92   92   92
+  92   92   92   92   113   113   113   113   113   113   113   113   113
+  113   113   113   113   113   113   113   113   113   113   113   113   134
+  134   134   134   134   134   134   134   134   134   134   134   134   134
+  134   134   134   134   134   134   154   154   154   154   154   154   154
+  154   154   154   154   154   154   154   154   154   170   170   170   170
+  170   170   170   170   170   170   170   170   170   170   170   170   170
+  170   170   170   170   170}
+
+do_execsql_test 1.18.5.6 {
+  SELECT rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   15   15   15   15
+  15   15   15   15   15   15   15   15   15   15   15   15   31   31   31
+  31   31   31   31   31   31   31   31   31   31   31   31   31   31   31
+  31   50   50   50   50   50   50   50   50   50   50   50   50   50   50
+  50   50   50   50   50   50   50   71   71   71   71   71   71   71   71
+  71   71   71   71   71   71   71   71   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   22   22   22   22   22   22
+  22   22   22   22   22   22   22   22   22   22   22   22   22   22   22
+  43   43   43   43   43   43   43   43   43   43   43   43   43   43   43
+  43   43   43   43   43   43   64   64   64   64   64   64   64   64   64
+  64   64   64   64   64   64   64   64   64   64   64   84   84   84   84
+  84   84   84   84   84   84   84   84   84   84   84   84   84   84   84
+  84   84   84}
+
+do_execsql_test 1.18.6.1 {
+  SELECT 
+      row_number() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ),
+      rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ),
+      dense_rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW )
+    FROM t2
+} {1 1 1   2 1 1   3 1 1   4 1 1   5 1 1   6 1 1   7 1 1   8 1 1   9 1 1
+  10 1 1   11 1 1   12 1 1   13 1 1   14 1 1   15 15 2   16 15 2   17 15 2
+  18 15 2   19 15 2   20 15 2   21 15 2   22 15 2   23 15 2   24 15 2
+  25 15 2   26 15 2   27 15 2   28 15 2   29 15 2   30 15 2   31 31 3
+  32 31 3   33 31 3   34 31 3   35 31 3   36 31 3   37 31 3   38 31 3
+  39 31 3   40 31 3   41 31 3   42 31 3   43 31 3   44 31 3   45 31 3
+  46 31 3   47 31 3   48 31 3   49 31 3   50 50 4   51 50 4   52 50 4
+  53 50 4   54 50 4   55 50 4   56 50 4   57 50 4   58 50 4   59 50 4
+  60 50 4   61 50 4   62 50 4   63 50 4   64 50 4   65 50 4   66 50 4
+  67 50 4   68 50 4   69 50 4   70 50 4   71 71 5   72 71 5   73 71 5
+  74 71 5   75 71 5   76 71 5   77 71 5   78 71 5   79 71 5   80 71 5
+  81 71 5   82 71 5   83 71 5   84 71 5   85 71 5   86 71 5   1 1 1   2 1 1
+  3 1 1   4 1 1   5 1 1   6 1 1   7 1 1   8 1 1   9 1 1   10 1 1   11 1 1
+  12 1 1   13 1 1   14 1 1   15 1 1   16 1 1   17 1 1   18 1 1   19 1 1
+  20 1 1   21 1 1   22 22 2   23 22 2   24 22 2   25 22 2   26 22 2   27 22 2
+  28 22 2   29 22 2   30 22 2   31 22 2   32 22 2   33 22 2   34 22 2
+  35 22 2   36 22 2   37 22 2   38 22 2   39 22 2   40 22 2   41 22 2
+  42 22 2   43 43 3   44 43 3   45 43 3   46 43 3   47 43 3   48 43 3
+  49 43 3   50 43 3   51 43 3   52 43 3   53 43 3   54 43 3   55 43 3
+  56 43 3   57 43 3   58 43 3   59 43 3   60 43 3   61 43 3   62 43 3
+  63 43 3   64 64 4   65 64 4   66 64 4   67 64 4   68 64 4   69 64 4
+  70 64 4   71 64 4   72 64 4   73 64 4   74 64 4   75 64 4   76 64 4
+  77 64 4   78 64 4   79 64 4   80 64 4   81 64 4   82 64 4   83 64 4
+  84 84 5   85 84 5   86 84 5   87 84 5   88 84 5   89 84 5   90 84 5
+  91 84 5   92 84 5   93 84 5   94 84 5   95 84 5   96 84 5   97 84 5
+  98 84 5   99 84 5   100 84 5   101 84 5   102 84 5   103 84 5   104 84 5
+  105 84 5}
+
+
+do_test 1.18.7.1 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0053 0.0105 0.0158 0.0211 0.0263 0.0316 0.0368 0.0421 0.0474 0.0526 0.0579 0.0632 0.0684 0.0737 0.0789 0.0842 0.0895 0.0947 0.1000 0.1053 0.1105 0.1158 0.1211 0.1263 0.1316 0.1368 0.1421 0.1474 0.1526 0.1579 0.1632 0.1684 0.1737 0.1789 0.1842 0.1895 0.1947 0.2000 0.2053 0.2105 0.2158 0.2211 0.2263 0.2316 0.2368 0.2421 0.2474 0.2526 0.2579 0.2632 0.2684 0.2737 0.2789 0.2842 0.2895 0.2947 0.3000 0.3053 0.3105 0.3158 0.3211 0.3263 0.3316 0.3368 0.3421 0.3474 0.3526 0.3579 0.3632 0.3684 0.3737 0.3789 0.3842 0.3895 0.3947 0.4000 0.4053 0.4105 0.4158 0.4211 0.4263 0.4316 0.4368 0.4421 0.4474 0.4526 0.4579 0.4632 0.4684 0.4737 0.4789 0.4842 0.4895 0.4947 0.5000 0.5053 0.5105 0.5158 0.5211 0.5263 0.5316 0.5368 0.5421 0.5474 0.5526 0.5579 0.5632 0.5684 0.5737 0.5789 0.5842 0.5895 0.5947 0.6000 0.6053 0.6105 0.6158 0.6211 0.6263 0.6316 0.6368 0.6421 0.6474 0.6526 0.6579 0.6632 0.6684 0.6737 0.6789 0.6842 0.6895 0.6947 0.7000 0.7053 0.7105 0.7158 0.7211 0.7263 0.7316 0.7368 0.7421 0.7474 0.7526 0.7579 0.7632 0.7684 0.7737 0.7789 0.7842 0.7895 0.7947 0.8000 0.8053 0.8105 0.8158 0.8211 0.8263 0.8316 0.8368 0.8421 0.8474 0.8526 0.8579 0.8632 0.8684 0.8737 0.8789 0.8842 0.8895 0.8947 0.9000 0.9053 0.9105 0.9158 0.9211 0.9263 0.9316 0.9368 0.9421 0.9474 0.9526 0.9579 0.9632 0.9684 0.9737 0.9789 0.9842 0.9895 0.9947 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.18.7.2 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0769 0.1538 0.2308 0.3077 0.3846 0.4615 0.5385 0.6154 0.6923 0.7692 0.8462 0.9231 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0667 0.1333 0.2000 0.2667 0.3333 0.4000 0.4667 0.5333 0.6000 0.6667 0.7333 0.8000 0.8667 0.9333 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0556 0.1111 0.1667 0.2222 0.2778 0.3333 0.3889 0.4444 0.5000 0.5556 0.6111 0.6667 0.7222 0.7778 0.8333 0.8889 0.9444 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0526 0.1053 0.1579 0.2105 0.2632 0.3158 0.3684 0.4211 0.4737 0.5263 0.5789 0.6316 0.6842 0.7368 0.7895 0.8421 0.8947 0.9474 1.0000 0.0000 0.0667 0.1333 0.2000 0.2667 0.3333 0.4000 0.4667 0.5333 0.6000 0.6667 0.7333 0.8000 0.8667 0.9333 1.0000 0.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.18.7.3 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY b ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0105 0.0105 0.0211 0.0211 0.0316 0.0368 0.0421 0.0474 0.0474 0.0474 0.0632 0.0632 0.0632 0.0789 0.0789 0.0789 0.0947 0.1000 0.1000 0.1105 0.1105 0.1105 0.1263 0.1263 0.1368 0.1421 0.1421 0.1421 0.1579 0.1579 0.1579 0.1737 0.1789 0.1842 0.1895 0.1895 0.2000 0.2000 0.2105 0.2105 0.2211 0.2263 0.2316 0.2316 0.2421 0.2421 0.2526 0.2579 0.2579 0.2579 0.2737 0.2737 0.2737 0.2895 0.2895 0.3000 0.3053 0.3053 0.3053 0.3053 0.3263 0.3263 0.3263 0.3263 0.3474 0.3474 0.3579 0.3579 0.3579 0.3579 0.3789 0.3789 0.3895 0.3895 0.4000 0.4000 0.4000 0.4158 0.4211 0.4211 0.4316 0.4368 0.4368 0.4474 0.4474 0.4579 0.4579 0.4684 0.4684 0.4684 0.4684 0.4895 0.4947 0.5000 0.5053 0.5105 0.5158 0.5211 0.5211 0.5316 0.5316 0.5316 0.5474 0.5526 0.5526 0.5526 0.5526 0.5737 0.5737 0.5737 0.5737 0.5947 0.6000 0.6000 0.6105 0.6105 0.6211 0.6263 0.6316 0.6316 0.6316 0.6474 0.6526 0.6579 0.6632 0.6684 0.6737 0.6737 0.6737 0.6895 0.6895 0.6895 0.7053 0.7053 0.7053 0.7211 0.7211 0.7211 0.7368 0.7421 0.7421 0.7526 0.7526 0.7632 0.7684 0.7684 0.7789 0.7789 0.7789 0.7947 0.8000 0.8053 0.8053 0.8053 0.8053 0.8263 0.8263 0.8263 0.8421 0.8474 0.8474 0.8579 0.8632 0.8632 0.8632 0.8789 0.8789 0.8789 0.8947 0.8947 0.8947 0.8947 0.8947 0.9211 0.9211 0.9211 0.9368 0.9421 0.9421 0.9421 0.9579 0.9579 0.9579 0.9737 0.9737 0.9842 0.9842 0.9947 0.9947}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.18.7.4 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0769 0.1538 0.1538 0.1538 0.3846 0.4615 0.5385 0.6154 0.6923 0.6923 0.8462 0.8462 0.8462 0.0000 0.0000 0.1000 0.1000 0.2000 0.2000 0.3000 0.3000 0.4000 0.4000 0.5000 0.5500 0.5500 0.6500 0.6500 0.6500 0.8000 0.8000 0.8000 0.8000 0.8000 0.0000 0.0000 0.1333 0.1333 0.1333 0.3333 0.3333 0.4667 0.5333 0.6000 0.6667 0.6667 0.8000 0.8000 0.8000 1.0000 0.0000 0.0000 0.1000 0.1000 0.2000 0.2000 0.3000 0.3000 0.3000 0.3000 0.5000 0.5000 0.6000 0.6500 0.7000 0.7000 0.7000 0.8500 0.9000 0.9000 0.9000 0.0000 0.0556 0.1111 0.1667 0.1667 0.1667 0.1667 0.3889 0.3889 0.5000 0.5556 0.6111 0.6111 0.6111 0.7778 0.7778 0.7778 0.7778 1.0000 0.0000 0.0500 0.0500 0.0500 0.2000 0.2500 0.2500 0.3500 0.3500 0.4500 0.4500 0.4500 0.6000 0.6000 0.6000 0.7500 0.7500 0.7500 0.9000 0.9000 0.9000 0.0000 0.0500 0.0500 0.0500 0.2000 0.2000 0.3000 0.3000 0.3000 0.3000 0.5000 0.5000 0.6000 0.6000 0.6000 0.7500 0.8000 0.8500 0.9000 0.9000 0.9000 0.0000 0.0000 0.0000 0.1579 0.2105 0.2105 0.3158 0.3158 0.4211 0.4211 0.4211 0.4211 0.6316 0.6842 0.7368 0.7368 0.8421 0.8421 0.9474 0.9474 0.0000 0.0000 0.0000 0.2000 0.2667 0.2667 0.4000 0.4000 0.4000 0.4000 0.6667 0.7333 0.7333 0.8667 0.9333 0.9333 0.0000 0.0000 0.0000 0.1429 0.1905 0.1905 0.1905 0.3333 0.3333 0.3333 0.4762 0.5238 0.5238 0.5238 0.5238 0.7143 0.7619 0.8095 0.8095 0.8095 0.9524 0.9524}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.18.7.5 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.18.7.6 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER (PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.18.8.1 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0052 0.0105 0.0157 0.0209 0.0262 0.0314 0.0366 0.0419 0.0471 0.0524 0.0576 0.0628 0.0681 0.0733 0.0785 0.0838 0.0890 0.0942 0.0995 0.1047 0.1099 0.1152 0.1204 0.1257 0.1309 0.1361 0.1414 0.1466 0.1518 0.1571 0.1623 0.1675 0.1728 0.1780 0.1832 0.1885 0.1937 0.1990 0.2042 0.2094 0.2147 0.2199 0.2251 0.2304 0.2356 0.2408 0.2461 0.2513 0.2565 0.2618 0.2670 0.2723 0.2775 0.2827 0.2880 0.2932 0.2984 0.3037 0.3089 0.3141 0.3194 0.3246 0.3298 0.3351 0.3403 0.3455 0.3508 0.3560 0.3613 0.3665 0.3717 0.3770 0.3822 0.3874 0.3927 0.3979 0.4031 0.4084 0.4136 0.4188 0.4241 0.4293 0.4346 0.4398 0.4450 0.4503 0.4555 0.4607 0.4660 0.4712 0.4764 0.4817 0.4869 0.4921 0.4974 0.5026 0.5079 0.5131 0.5183 0.5236 0.5288 0.5340 0.5393 0.5445 0.5497 0.5550 0.5602 0.5654 0.5707 0.5759 0.5812 0.5864 0.5916 0.5969 0.6021 0.6073 0.6126 0.6178 0.6230 0.6283 0.6335 0.6387 0.6440 0.6492 0.6545 0.6597 0.6649 0.6702 0.6754 0.6806 0.6859 0.6911 0.6963 0.7016 0.7068 0.7120 0.7173 0.7225 0.7277 0.7330 0.7382 0.7435 0.7487 0.7539 0.7592 0.7644 0.7696 0.7749 0.7801 0.7853 0.7906 0.7958 0.8010 0.8063 0.8115 0.8168 0.8220 0.8272 0.8325 0.8377 0.8429 0.8482 0.8534 0.8586 0.8639 0.8691 0.8743 0.8796 0.8848 0.8901 0.8953 0.9005 0.9058 0.9110 0.9162 0.9215 0.9267 0.9319 0.9372 0.9424 0.9476 0.9529 0.9581 0.9634 0.9686 0.9738 0.9791 0.9843 0.9895 0.9948 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.18.8.2 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0714 0.1429 0.2143 0.2857 0.3571 0.4286 0.5000 0.5714 0.6429 0.7143 0.7857 0.8571 0.9286 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0625 0.1250 0.1875 0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250 0.6875 0.7500 0.8125 0.8750 0.9375 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0526 0.1053 0.1579 0.2105 0.2632 0.3158 0.3684 0.4211 0.4737 0.5263 0.5789 0.6316 0.6842 0.7368 0.7895 0.8421 0.8947 0.9474 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0625 0.1250 0.1875 0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250 0.6875 0.7500 0.8125 0.8750 0.9375 1.0000 0.0455 0.0909 0.1364 0.1818 0.2273 0.2727 0.3182 0.3636 0.4091 0.4545 0.5000 0.5455 0.5909 0.6364 0.6818 0.7273 0.7727 0.8182 0.8636 0.9091 0.9545 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.18.8.3 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY b ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0105 0.0105 0.0209 0.0209 0.0314 0.0314 0.0366 0.0419 0.0471 0.0628 0.0628 0.0628 0.0785 0.0785 0.0785 0.0942 0.0942 0.0942 0.0995 0.1099 0.1099 0.1257 0.1257 0.1257 0.1361 0.1361 0.1414 0.1571 0.1571 0.1571 0.1728 0.1728 0.1728 0.1780 0.1832 0.1885 0.1990 0.1990 0.2094 0.2094 0.2199 0.2199 0.2251 0.2304 0.2408 0.2408 0.2513 0.2513 0.2565 0.2723 0.2723 0.2723 0.2880 0.2880 0.2880 0.2984 0.2984 0.3037 0.3246 0.3246 0.3246 0.3246 0.3455 0.3455 0.3455 0.3455 0.3560 0.3560 0.3770 0.3770 0.3770 0.3770 0.3874 0.3874 0.3979 0.3979 0.4136 0.4136 0.4136 0.4188 0.4293 0.4293 0.4346 0.4450 0.4450 0.4555 0.4555 0.4660 0.4660 0.4869 0.4869 0.4869 0.4869 0.4921 0.4974 0.5026 0.5079 0.5131 0.5183 0.5288 0.5288 0.5445 0.5445 0.5445 0.5497 0.5707 0.5707 0.5707 0.5707 0.5916 0.5916 0.5916 0.5916 0.5969 0.6073 0.6073 0.6178 0.6178 0.6230 0.6283 0.6440 0.6440 0.6440 0.6492 0.6545 0.6597 0.6649 0.6702 0.6859 0.6859 0.6859 0.7016 0.7016 0.7016 0.7173 0.7173 0.7173 0.7330 0.7330 0.7330 0.7382 0.7487 0.7487 0.7592 0.7592 0.7644 0.7749 0.7749 0.7906 0.7906 0.7906 0.7958 0.8010 0.8220 0.8220 0.8220 0.8220 0.8377 0.8377 0.8377 0.8429 0.8534 0.8534 0.8586 0.8743 0.8743 0.8743 0.8901 0.8901 0.8901 0.9162 0.9162 0.9162 0.9162 0.9162 0.9319 0.9319 0.9319 0.9372 0.9529 0.9529 0.9529 0.9686 0.9686 0.9686 0.9791 0.9791 0.9895 0.9895 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.18.8.4 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0714 0.1429 0.3571 0.3571 0.3571 0.4286 0.5000 0.5714 0.6429 0.7857 0.7857 1.0000 1.0000 1.0000 0.0952 0.0952 0.1905 0.1905 0.2857 0.2857 0.3810 0.3810 0.4762 0.4762 0.5238 0.6190 0.6190 0.7619 0.7619 0.7619 1.0000 1.0000 1.0000 1.0000 1.0000 0.1250 0.1250 0.3125 0.3125 0.3125 0.4375 0.4375 0.5000 0.5625 0.6250 0.7500 0.7500 0.9375 0.9375 0.9375 1.0000 0.0952 0.0952 0.1905 0.1905 0.2857 0.2857 0.4762 0.4762 0.4762 0.4762 0.5714 0.5714 0.6190 0.6667 0.8095 0.8095 0.8095 0.8571 1.0000 1.0000 1.0000 0.0526 0.1053 0.1579 0.3684 0.3684 0.3684 0.3684 0.4737 0.4737 0.5263 0.5789 0.7368 0.7368 0.7368 0.9474 0.9474 0.9474 0.9474 1.0000 0.0476 0.1905 0.1905 0.1905 0.2381 0.3333 0.3333 0.4286 0.4286 0.5714 0.5714 0.5714 0.7143 0.7143 0.7143 0.8571 0.8571 0.8571 1.0000 1.0000 1.0000 0.0476 0.1905 0.1905 0.1905 0.2857 0.2857 0.4762 0.4762 0.4762 0.4762 0.5714 0.5714 0.7143 0.7143 0.7143 0.7619 0.8095 0.8571 1.0000 1.0000 1.0000 0.1500 0.1500 0.1500 0.2000 0.3000 0.3000 0.4000 0.4000 0.6000 0.6000 0.6000 0.6000 0.6500 0.7000 0.8000 0.8000 0.9000 0.9000 1.0000 1.0000 0.1875 0.1875 0.1875 0.2500 0.3750 0.3750 0.6250 0.6250 0.6250 0.6250 0.6875 0.8125 0.8125 0.8750 1.0000 1.0000 0.1364 0.1364 0.1364 0.1818 0.3182 0.3182 0.3182 0.4545 0.4545 0.4545 0.5000 0.6818 0.6818 0.6818 0.6818 0.7273 0.7727 0.9091 0.9091 0.9091 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.18.8.5 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.18.8.6 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.18.8.1 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(100) OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 88.0000 89.0000 89.0000 90.0000 90.0000 91.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.18.8.2 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(101) OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 22.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.18.8.3 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(102) OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 88.0000 89.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.18.8.4 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(103) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 22.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.18.8.5 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(104) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000 103.0000 104.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.18.8.6 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(105) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.18.8.7 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(105) OVER ( ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 88.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000 103.0000 104.0000 105.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+do_execsql_test 1.18.9.1 {
+  SELECT last_value(a+b) OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2
+} {207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   216}
+
+do_execsql_test 1.18.9.2 {
+  SELECT last_value(a+b) OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2
+} {223   223   223   223   223   223   223   223   223   223   223   223   223
+  196   210   210   210   210   210   210   210   210   210   210   210   210
+  210   210   210   210   210   210   210   210   263   280   280   280   280
+  280   280   280   280   280   280   280   280   280   280   280   234   279
+  279   279   279   279   279   279   279   279   279   279   279   279   279
+  279   279   279   279   279   279   221   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   235
+  274   274   274   274   274   274   274   274   274   274   274   274   274
+  274   274   274   274   274   274   274   189   212   212   212   212   212
+  212   212   212   212   212   212   212   212   212   212   212   212   212
+  212   212   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   216   232   232   232
+  232   232   232   232   232   232   232   232   232   232   232   232   250
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   249}
+
+do_execsql_test 1.18.9.3 {
+  SELECT last_value(a+b) OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2
+} {276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   120}
+
+do_execsql_test 1.18.9.4 {
+  SELECT last_value(a+b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2
+} {240   240   240   240   240   240   240   240   240   240   240   240   240
+  218   263   263   263   263   263   263   263   263   263   263   263   263
+  263   263   263   263   263   263   263   263   261   280   280   280   280
+  280   280   280   280   280   280   280   280   280   280   280   228   252
+  252   252   252   252   252   252   252   252   252   252   252   252   252
+  252   252   252   252   252   252   130   171   171   171   171   171   171
+  171   171   171   171   171   171   171   171   171   171   171   171   271
+  274   274   274   274   274   274   274   274   274   274   274   274   274
+  274   274   274   274   274   274   274   213   226   226   226   226   226
+  226   226   226   226   226   226   226   226   226   226   226   226   226
+  226   226   195   124   124   124   124   124   124   124   124   124   124
+  124   124   124   124   124   124   124   124   124   119   198   198   198
+  198   198   198   198   198   198   198   198   198   198   198   198   171
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   120}
+
+do_execsql_test 1.18.9.5 {
+  SELECT last_value(a+b) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2
+} {229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   249}
+
+do_execsql_test 1.18.9.6 {
+  SELECT last_value(a+b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.18.10.1 {
+  SELECT nth_value(b,b+1) OVER (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW) FROM t2
+} {98   9   73   75   43   78   32   4   5   25   27   15   31   24   43   98
+  94   79   77   61   22   79   8   73   3   85   43   34   98   36   63   91
+  11   20   21   75   90   56   96   84   5   28   33   5   56   59   81   19
+  87   36   2   26   63   73   89   95   74   73   79   29   70   65   33
+  14   26   47   94   14   15   5   72   41   11   75   19   53   91   79
+  37   91   93   59   58   36   23   84   33   73   47   58   34   58   73
+  15   13   7   11   99   31   66   38   80   79   95   60   59   19   59
+  {}   85   39   27   {}   9   59   75   91   33   {}   84   {}   33   50
+  {}   {}   36   77   29   {}   30   {}   12   {}   17   75   58   62   91
+  58   {}   {}   50   {}   27   75   {}   {}   {}   33   {}   {}   {}   {}
+  62   50   17   36   36   95   {}   {}   {}   {}   {}   10   {}   {}   {}
+  99   {}   {}   {}   {}   {}   {}   {}   30   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.18.10.2 {
+  SELECT nth_value(b,b+1) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   61   {}   {}   {}   81   {}   91   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   62   {}   {}   {}   22   {}   {}   {}   12
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   43   {}   {}   {}   {}
+  {}   83   {}   {}   {}   {}   {}   {}   {}   33   {}   {}   {}   {}   {}
+  {}   94   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   85   {}   {}   {}   {}   {}   {}   95   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   56   {}   36   66   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   87   {}   {}   {}   {}   {}   37   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   8   {}   {}   {}   {}   {}   58   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   19   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.18.10.3 {
+  SELECT nth_value(b,b+1) OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2
+} {2   2   2   2   2   3   5   7   7   8   8   9   9   10   11   12   12   12
+  13   15   15   16   16   16   19   20   21   22   23   23   25   26   26
+  27   29   30   30   31   32   33   33   33   34   34   35   36   36   36
+  37   38   39   39   40   41   41   43   43   44   46   47   47   47   49
+  50   51   52   54   55   56   56   56   57   58   58   59   59   59   60
+  61   62   63   64   65   66   67   69   70   72   73   73   74   74   74
+  75   77   78   79   80   81   82   83   84   84   84   85   86   87   87
+  88   89   89   90   90   91   91   91   93   93   94   95   96   96   96
+  97   98   99   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.18.10.4 {
+  SELECT nth_value(b,b+1) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2
+} {90   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   11
+  11   61   61   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   12   12   72   72   72   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   23   23   73   73   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   34   84   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   35   85   85   85   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   36   86   86   86   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   47   47
+  47   97   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   58   58   58   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   49   49   49   99   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.18.10.5 {
+  SELECT nth_value(b,b+1) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2
+} {65   72   81   34   41   35   73   74   14   15   32   53   1   2   35   5
+  74   95   55   61   75   63   34   81   12   91   74   93   43   33   22
+  75   56   56   23   85   72   23   33   84   22   15   93   73   12   6
+  46   43   75   75   36   87   54   87   85   43   15   84   85   56   66
+  83   36   97   85   78   34   94   75   33   65   17   36   68   7   15
+  94   38   78   27   95   96   36   68   7   15   16   38   89   66   56
+  38   76   89   89   47   85   56   59   {}   8   88   27   95   16   {}
+  98   79   39   59   16   {}   {}   8   16   98   36   66   {}   99   29
+  59   97   8   {}   {}   {}   27   17   8   {}   8   58   {}   98   {}   {}
+  {}   29   87   19   {}   89   {}   {}   37   {}   {}   {}   59   59   58
+  8   99   {}   {}   98   29   {}   {}   {}   {}   58   {}   89   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   19   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.18.10.6 {
+  SELECT nth_value(b,b+1) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.18.11.1 {
+  SELECT first_value(b) OVER (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW) FROM t2
+} {81   89   89   89   89   81   96   59   38   68   39   62   91   46   6
+  99   97   27   46   78   54   97   8   67   29   93   84   77   23   16
+  16   93   65   35   47   7   86   74   61   91   85   24   85   43   59
+  12   32   56   3   91   22   90   55   15   28   89   25   47   1   56   40
+  43   56   16   75   36   89   98   76   81   4   94   42   30   78   33
+  29   53   63   2   87   37   80   84   72   41   9   61   73   95   65   13
+  58   96   98   1   21   74   65   35   5   73   11   51   87   41   12   8
+  20   31   31   15   95   22   73   79   88   34   8   11   49   34   90
+  59   96   60   55   75   77   44   2   7   85   57   74   29   70   59   19
+  39   26   26   47   80   90   36   58   47   9   72   72   66   33   93
+  75   64   81   9   23   37   13   12   14   62   91   36   91   33   15
+  34   36   99   3   95   69   58   52   30   50   84   10   84   33   21
+  39   44   58   30   38   34   83}
+
+do_execsql_test 1.18.11.2 {
+  SELECT first_value(b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW) FROM t2
+} {40   90   90   90   90   40   30   80   20   90   60   70   80   90   91
+  81   81   81   81   91   61   91   91   1   81   41   61   1   21   11   51
+  41   31   31   11   12   62   62   62   62   12   32   22   42   2   72
+  12   22   2   72   72   23   93   93   93   93   23   93   43   3   43   33
+  53   63   73   13   73   73   33   93   23   13   84   54   54   54   54
+  84   74   24   4   94   84   74   34   34   44   74   64   14   34   35
+  65   65   65   65   35   85   85   55   15   25   75   95   65   65   35
+  5   15   95   55   75   46   96   96   96   96   46   6   46   16   16   86
+  56   56   56   16   36   76   96   96   26   26   27   97   97   97   97
+  27   97   67   77   47   7   47   87   37   87   77   7   57   47   47   68
+  38   38   38   38   68   78   8   28   98   78   58   98   8   88   8   59
+  89   89   89   89   59   39   99   29   59   89   89   29   9   79   49
+  59   29   59   19   39   9}
+
+do_execsql_test 1.18.11.3 {
+  SELECT first_value(b) OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2
+} {1   1   1   1   1   1   2   2   3   3   4   5   6   7   7   7   8   8   8
+  9   9   9   10   11   11   12   12   12   13   13   14   15   15   15   16
+  16   16   17   19   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   30   30   30   31   31   32   33   33   33
+  33   34   34   34   34   35   35   36   36   36   36   37   37   38   38
+  39   39   39   40   41   41   42   43   43   44   44   46   46   47   47
+  47   47   49   50   51   52   53   54   55   55   56   56   56   57   58
+  58   58   58   59   59   59   59   60   61   61   62   62   63   64   65
+  65   65   66   67   68   69   70   72   72   72   73   73   73   74   74
+  74   75   75   75   76   77   77   78   78   79   80   80   81   81   81
+  82   83   84   84   84   84   85   85   85   86   87   87   88   89   89
+  89   90   90   90   91   91   91   91   91   93   93   93   94   95   95
+  95   96   96   96   97   97}
+
+do_execsql_test 1.18.11.4 {
+  SELECT first_value(b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2
+} {20   10   10   10   10   20   30   30   30   40   50   60   70   80   1   1
+  1   1   1   1   11   11   21   21   31   31   41   41   51   61   61   81
+  81   81   91   2   2   2   2   2   2   12   12   12   22   22   32   42
+  52   62   62   3   3   3   3   3   3   13   13   23   23   33   33   33
+  33   43   43   53   63   73   73   73   14   4   4   4   4   14   24   34
+  34   34   34   44   44   54   64   74   74   74   84   15   5   5   5   5
+  15   15   15   25   35   35   55   55   65   65   65   75   75   75   85
+  85   16   6   6   6   6   16   16   16   26   26   36   36   36   36   46
+  46   56   56   56   66   76   7   7   7   7   7   7   7   17   27   27   37
+  37   47   47   47   47   57   67   77   77   8   8   8   8   8   8   8   28
+  38   38   58   58   58   58   68   78   9   9   9   9   9   9   9   19   29
+  29   29   39   39   39   49   59   59   59   59   69   79   89}
+
+do_execsql_test 1.18.11.5 {
+  SELECT first_value(b) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2
+} {40   90   90   90   90   40   30   80   20   90   60   70   80   90   30
+  50   10   30   81   91   61   91   91   1   81   41   61   1   21   11   51
+  41   31   31   11   81   91   91   21   62   12   32   22   42   2   72
+  12   22   2   72   72   12   62   52   82   93   23   93   43   3   43   33
+  53   63   73   13   73   73   33   93   23   13   33   3   33   83   54
+  84   74   24   4   94   84   74   34   34   44   74   64   14   34   84
+  84   44   34   65   35   85   85   55   15   25   75   95   65   65   35
+  5   15   95   55   75   85   75   15   95   96   46   6   46   16   16   86
+  56   56   56   16   36   76   96   96   26   26   36   66   36   36   97
+  27   97   67   77   47   7   47   87   37   87   77   7   57   47   47   37
+  27   17   7   38   68   78   8   28   98   78   58   98   8   88   8   58
+  58   58   38   89   59   39   99   29   59   89   89   29   9   79   49
+  59   29   59   19   39   9}
+
+do_execsql_test 1.18.11.6 {
+  SELECT first_value(b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.18.12.1 {
+  SELECT lead(b,b) OVER (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW) FROM t2
+} {96   9   11   89   32   53   91   30   51   56   54   73   22   59   75
+  74   78   8   16   65   15   8   31   87   90   12   32   96   74   76   37
+  85   90   15   35   2   60   36   75   9   51   47   63   51   90   26   42
+  26   8   76   80   90   37   87   56   79   5   87   8   2   39   73   64
+  36   90   72   78   36   73   51   33   20   41   2   26   37   33   8   14
+  33   81   55   1   9   12   39   64   87   72   34   82   21   34   99   62
+  74   41   69   22   75   27   58   8   79   77   26   26   55   {}   29
+  30   7   {}   66   55   2   34   64   {}   33   {}   44   84   {}   {}   95
+  85   19   {}   83   {}   91   {}   {}   9   50   91   33   34   {}   {}
+  84   {}   7   9   {}   {}   {}   44   {}   {}   {}   {}   91   84   {}   95
+  95   52   {}   {}   {}   {}   {}   21   {}   {}   {}   58   {}   {}   {}
+  {}   {}   {}   {}   83   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}}
+
+do_execsql_test 1.18.12.2 {
+  SELECT lead(b,b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   81   {}   {}   {}   21   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   62   {}   {}   {}   12   {}   {}   {}   72
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   53   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   34   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   95   {}   {}   {}   {}   {}   {}   85   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   56   {}   36   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   57   {}   {}   {}   {}   {}   7   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   8   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.18.12.3 {
+  SELECT lead(b,b) OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2
+} {1   2   3   3   5   6   7   8   8   9   9   10   11   12   12   13   13
+  14   15   16   16   17   19   20   21   22   23   24   25   26   27   27
+  28   29   30   31   32   33   33   33   34   34   35   36   36   36   37
+  38   39   39   40   41   42   43   43   44   46   47   47   47   49   50
+  52   53   54   55   56   56   57   58   58   58   59   59   59   60   61
+  62   62   64   65   65   67   69   70   72   72   73   74   74   75   75
+  75   77   78   80   81   81   83   84   84   85   85   85   87   88   89
+  89   89   90   90   91   91   91   93   93   94   95   95   96   97   97
+  98   99   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.18.12.4 {
+  SELECT lead(b,b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2
+} {80   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   1
+  11   81   81   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   12   12   72   82   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   13   23   73   73   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   34   84   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   35   85   85   95   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   36   86   96   96   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   37   47
+  47   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   58   58   68   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   39   49   59   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.18.12.5 {
+  SELECT lead(b,b) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2
+} {34   72   91   74   21   55   23   94   84   95   2   13   61   22   55
+  55   94   85   75   81   65   73   74   21   72   12   94   33   63   73
+  72   96   36   76   3   25   62   3   73   34   12   46   43   93   72   16
+  86   63   15   65   36   77   24   57   25   53   95   34   95   16   97
+  74   97   67   25   98   44   34   65   54   5   68   96   28   47   95
+  34   39   8   38   6   46   96   28   47   95   56   39   99   97   76   8
+  26   9   79   27   95   16   29   {}   58   58   77   85   56   {}   98
+  29   {}   19   96   {}   {}   78   56   98   36   97   {}   89   89   29
+  47   78   {}   {}   {}   38   68   58   {}   58   38   {}   98   {}   {}
+  {}   39   57   9   {}   79   {}   {}   7   {}   {}   {}   9   29   38   78
+  {}   {}   {}   8   39   {}   {}   {}   {}   59   {}   99   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.18.12.6 {
+  SELECT lead(b,b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.18.13.1 {
+  SELECT lag(b,b) OVER (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   38   {}   {}   {}   {}
+  {}   {}   {}   6   {}   {}   {}   {}   {}   81   46   6   {}   {}   {}   {}
+  23   {}   {}   {}   {}   {}   27   {}   {}   {}   35   6   {}   12   {}
+  23   {}   {}   61   84   {}   93   39   47   {}   54   46   96   56   {}
+  16   {}   {}   {}   {}   89   {}   16   43   {}   85   56   29   99   53
+  {}   59   {}   {}   91   59   53   84   99   {}   93   63   47   {}   {}
+  98   33   67   35   75   1   23   13   55   27   75   98   35   73   63   2
+  21   27   13   24   86   23   84   31   20   94   61   65   75   23   36
+  94   55   90   41   77   96   56   29   40   12   89   63   11   5   73
+  79   1   16   28   31   73   5   39   53   63   41   11   40   2   13   33
+  9   29   90   47   72   9   73   30   44   33   74   93   29   74   42   34
+  63   41   34   96   47   77   1   36   74   72   14   36   26   77   9   72
+  64   8   91   31   52   30}
+
+do_execsql_test 1.18.13.2 {
+  SELECT lag(b,b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   61   {}   81   {}   {}   {}   {}
+  1   {}   {}   {}   {}   {}   {}   {}   {}   {}   22   {}   {}   {}   12
+  {}   {}   62   {}   {}   {}   {}   {}   {}   {}   23   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   43   {}   23   {}   {}   {}   {}   {}
+  {}   54   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   75   {}
+  {}   {}   {}   {}   {}   55   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   47   {}   {}   {}   {}
+  {}   27   7   {}   {}   {}   {}   {}   {}   {}   {}   {}   68   {}   8   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   89   {}   {}
+  {}   {}   {}   {}   {}   29   9   {}   {}   {}}
+
+do_execsql_test 1.18.13.3 {
+  SELECT lag(b,b) OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2
+} {{}   1   1   1   1   2   2   2   2   2   2   3   3   3   4   4   5   6   6
+  6   7   7   7   7   7   8   8   8   8   8   8   9   9   9   9   9   9   9
+  9   9   9   10   10   10   10   11   11   11   11   11   12   12   12   12
+  13   13   13   13   13   14   15   15   15   15   16   16   16   16   16
+  17   19   20   20   21   21   21   21   22   22   22   22   23   23   23
+  23   23   24   23   24   24   25   26   26   26   26   26   26   26   26
+  26   26   26   27   27   27   27   28   29   29   29   29   30   30   30
+  30   30   30   31   31   31   31   31   32   32   32   32   32   32   31
+  32   33   33   33   33   33   33   34   34   34   34   34   34   34   34
+  35   35   35   35   35   36   36   36   36   36   36   36   37   37   37
+  38   38   38   38   38   38   39   39   39   39   40   40   41   41   42
+  43   42   43   43   43   43   44   44   44   46   46   46   47   47   47
+  47   47}
+
+do_execsql_test 1.18.13.4 {
+  SELECT lag(b,b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  1   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.18.13.5 {
+  SELECT lag(b,b) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   61   80   81   {}   {}   {}   {}
+  1   {}   {}   {}   30   {}   21   90   61   {}   22   {}   11   41   12
+  {}   {}   62   {}   {}   {}   {}   31   {}   50   23   30   21   90   {}
+  {}   62   {}   {}   81   {}   22   43   62   23   32   {}   91   {}   90
+  93   54   {}   {}   90   72   12   22   90   81   83   23   80   20   72
+  43   51   33   80   90   2   34   54   1   20   62   12   13   75   44   30
+  93   91   1   21   55   61   61   13   85   3   65   65   91   73   33   93
+  55   84   62   31   11   65   35   85   33   55   15   12   75   22   3
+  73   65   36   85   43   95   43   13   47   44   65   65   96   36   27
+  7   46   34   94   47   36   73   34   35   73   68   24   8   75   85   75
+  66   34   95   36   84   77   46   34   84   47   89   65   36   16   38
+  76   58   57   29   9   44   56   17}
+
+do_execsql_test 1.18.13.6 {
+  SELECT lag(b,b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.18.14.1 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW) FROM t2
+} {81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  89.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  89.81.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  89.81.96.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  89.81.96.59.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  81.96.59.38.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  96.59.38.68.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  59.38.68.39.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  38.68.39.62.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  68.39.62.91.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  39.62.91.46.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  62.91.46.6.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  91.46.6.99.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  46.6.99.97.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  6.99.97.27.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
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+  97.27.46.78.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
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+  69.58.52.30.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  58.52.30.50.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  52.30.50.84.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  30.50.84.10.33.21.39.44.58.30.38.34.83.27.82.17.7
+  50.84.10.84.21.39.44.58.30.38.34.83.27.82.17.7
+  84.10.84.33.39.44.58.30.38.34.83.27.82.17.7
+  10.84.33.21.44.58.30.38.34.83.27.82.17.7
+  84.33.21.39.58.30.38.34.83.27.82.17.7   33.21.39.44.30.38.34.83.27.82.17.7
+  21.39.44.58.38.34.83.27.82.17.7   39.44.58.30.34.83.27.82.17.7
+  44.58.30.38.83.27.82.17.7   58.30.38.34.27.82.17.7   30.38.34.83.82.17.7
+  38.34.83.27.17.7   34.83.27.82.7   83.27.82.17}
+
+do_execsql_test 1.18.14.2 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW) FROM t2
+} {40.30.80.20.90.60.70.80.90.30.50.10.30
+  90.30.80.20.90.60.70.80.90.30.50.10.30
+  90.40.80.20.90.60.70.80.90.30.50.10.30
+  90.40.30.20.90.60.70.80.90.30.50.10.30
+  90.40.30.80.90.60.70.80.90.30.50.10.30
+  40.30.80.20.60.70.80.90.30.50.10.30   30.80.20.90.70.80.90.30.50.10.30
+  80.20.90.60.80.90.30.50.10.30   20.90.60.70.90.30.50.10.30
+  90.60.70.80.30.50.10.30   60.70.80.90.50.10.30   70.80.90.30.10.30
+  80.90.30.50.30   90.30.50.10
+  91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  81.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  81.91.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  81.91.61.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  81.91.61.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  91.61.91.91.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  61.91.91.1.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  91.91.1.81.61.1.21.11.51.41.31.31.11.81.91.91.21
+  91.1.81.41.1.21.11.51.41.31.31.11.81.91.91.21
+  1.81.41.61.21.11.51.41.31.31.11.81.91.91.21
+  81.41.61.1.11.51.41.31.31.11.81.91.91.21
+  41.61.1.21.51.41.31.31.11.81.91.91.21   61.1.21.11.41.31.31.11.81.91.91.21
+  1.21.11.51.31.31.11.81.91.91.21   21.11.51.41.31.11.81.91.91.21
+  11.51.41.31.11.81.91.91.21   51.41.31.31.81.91.91.21   41.31.31.11.91.91.21
+  31.31.11.81.91.21   31.11.81.91.21   11.81.91.91
+  12.32.22.42.2.72.12.22.2.72.72.12.62.52.82
+  62.32.22.42.2.72.12.22.2.72.72.12.62.52.82
+  62.12.22.42.2.72.12.22.2.72.72.12.62.52.82
+  62.12.32.42.2.72.12.22.2.72.72.12.62.52.82
+  62.12.32.22.2.72.12.22.2.72.72.12.62.52.82
+  12.32.22.42.72.12.22.2.72.72.12.62.52.82
+  32.22.42.2.12.22.2.72.72.12.62.52.82   22.42.2.72.22.2.72.72.12.62.52.82
+  42.2.72.12.2.72.72.12.62.52.82   2.72.12.22.72.72.12.62.52.82
+  72.12.22.2.72.12.62.52.82   12.22.2.72.12.62.52.82   22.2.72.72.62.52.82
+  2.72.72.12.52.82   72.72.12.62.82   72.12.62.52
+  23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  93.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  93.23.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  93.23.93.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  93.23.93.43.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  23.93.43.3.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  93.43.3.43.53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  43.3.43.33.63.73.13.73.73.33.93.23.13.33.3.33.83
+  3.43.33.53.73.13.73.73.33.93.23.13.33.3.33.83
+  43.33.53.63.13.73.73.33.93.23.13.33.3.33.83
+  33.53.63.73.73.73.33.93.23.13.33.3.33.83
+  53.63.73.13.73.33.93.23.13.33.3.33.83   63.73.13.73.33.93.23.13.33.3.33.83
+  73.13.73.73.93.23.13.33.3.33.83   13.73.73.33.23.13.33.3.33.83
+  73.73.33.93.13.33.3.33.83   73.33.93.23.33.3.33.83   33.93.23.13.3.33.83
+  93.23.13.33.33.83   23.13.33.3.83   13.33.3.33
+  84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34
+  54.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34
+  54.84.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34
+  54.84.74.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34
+  54.84.74.24.94.84.74.34.34.44.74.64.14.34.84.84.44.34
+  84.74.24.4.84.74.34.34.44.74.64.14.34.84.84.44.34
+  74.24.4.94.74.34.34.44.74.64.14.34.84.84.44.34
+  24.4.94.84.34.34.44.74.64.14.34.84.84.44.34
+  4.94.84.74.34.44.74.64.14.34.84.84.44.34
+  94.84.74.34.44.74.64.14.34.84.84.44.34
+  84.74.34.34.74.64.14.34.84.84.44.34   74.34.34.44.64.14.34.84.84.44.34
+  34.34.44.74.14.34.84.84.44.34   34.44.74.64.34.84.84.44.34
+  44.74.64.14.84.84.44.34   74.64.14.34.84.44.34   64.14.34.84.44.34
+  14.34.84.84.34   34.84.84.44
+  35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  65.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  65.35.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  65.35.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  65.35.85.85.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  35.85.85.55.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  85.85.55.15.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  85.55.15.25.95.65.65.35.5.15.95.55.75.85.75.15.95
+  55.15.25.75.65.65.35.5.15.95.55.75.85.75.15.95
+  15.25.75.95.65.35.5.15.95.55.75.85.75.15.95
+  25.75.95.65.35.5.15.95.55.75.85.75.15.95
+  75.95.65.65.5.15.95.55.75.85.75.15.95   95.65.65.35.15.95.55.75.85.75.15.95
+  65.65.35.5.95.55.75.85.75.15.95   65.35.5.15.55.75.85.75.15.95
+  35.5.15.95.75.85.75.15.95   5.15.95.55.85.75.15.95   15.95.55.75.75.15.95
+  95.55.75.85.15.95   55.75.85.75.95   75.85.75.15
+  46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  96.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  96.46.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  96.46.6.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  96.46.6.46.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  46.6.46.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  6.46.16.16.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  46.16.16.86.56.56.16.36.76.96.96.26.26.36.66.36.36
+  16.16.86.56.56.16.36.76.96.96.26.26.36.66.36.36
+  16.86.56.56.16.36.76.96.96.26.26.36.66.36.36
+  86.56.56.56.36.76.96.96.26.26.36.66.36.36
+  56.56.56.16.76.96.96.26.26.36.66.36.36
+  56.56.16.36.96.96.26.26.36.66.36.36   56.16.36.76.96.26.26.36.66.36.36
+  16.36.76.96.26.26.36.66.36.36   36.76.96.96.26.36.66.36.36
+  76.96.96.26.36.66.36.36   96.96.26.26.66.36.36   96.26.26.36.36.36
+  26.26.36.66.36   26.36.66.36
+  27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  97.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  97.27.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  97.27.97.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  97.27.97.67.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  27.97.67.77.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  97.67.77.47.47.87.37.87.77.7.57.47.47.37.27.17.7
+  67.77.47.7.87.37.87.77.7.57.47.47.37.27.17.7
+  77.47.7.47.37.87.77.7.57.47.47.37.27.17.7
+  47.7.47.87.87.77.7.57.47.47.37.27.17.7
+  7.47.87.37.77.7.57.47.47.37.27.17.7   47.87.37.87.7.57.47.47.37.27.17.7
+  87.37.87.77.57.47.47.37.27.17.7   37.87.77.7.47.47.37.27.17.7
+  87.77.7.57.47.37.27.17.7   77.7.57.47.37.27.17.7   7.57.47.47.27.17.7
+  57.47.47.37.17.7   47.47.37.27.7   47.37.27.17
+  68.78.8.28.98.78.58.98.8.88.8.58.58.58.38
+  38.78.8.28.98.78.58.98.8.88.8.58.58.58.38
+  38.68.8.28.98.78.58.98.8.88.8.58.58.58.38
+  38.68.78.28.98.78.58.98.8.88.8.58.58.58.38
+  38.68.78.8.98.78.58.98.8.88.8.58.58.58.38
+  68.78.8.28.78.58.98.8.88.8.58.58.58.38
+  78.8.28.98.58.98.8.88.8.58.58.58.38   8.28.98.78.98.8.88.8.58.58.58.38
+  28.98.78.58.8.88.8.58.58.58.38   98.78.58.98.88.8.58.58.58.38
+  78.58.98.8.8.58.58.58.38   58.98.8.88.58.58.58.38   98.8.88.8.58.58.38
+  8.88.8.58.58.38   88.8.58.58.38   8.58.58.58
+  59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.59.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.59.39.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.59.39.99.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  59.39.99.29.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  39.99.29.59.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  99.29.59.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  29.59.89.89.9.79.49.59.29.59.19.39.9.9.99.69.39
+  59.89.89.29.79.49.59.29.59.19.39.9.9.99.69.39
+  89.89.29.9.49.59.29.59.19.39.9.9.99.69.39
+  89.29.9.79.59.29.59.19.39.9.9.99.69.39
+  29.9.79.49.29.59.19.39.9.9.99.69.39   9.79.49.59.59.19.39.9.9.99.69.39
+  79.49.59.29.19.39.9.9.99.69.39   49.59.29.59.39.9.9.99.69.39
+  59.29.59.19.9.9.99.69.39   29.59.19.39.9.99.69.39   59.19.39.9.99.69.39
+  19.39.9.9.69.39   39.9.9.99.39   9.9.99.69}
+
+do_execsql_test 1.18.14.3 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2
+} {1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
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+  91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  91.91.91.91.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  91.91.91.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  91.91.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  91.93.93.93.95.95.95.96.96.96.97.97.98.98.99.99
+  93.93.93.94.95.95.96.96.96.97.97.98.98.99.99
+  93.93.94.95.95.96.96.96.97.97.98.98.99.99
+  93.94.95.95.96.96.96.97.97.98.98.99.99
+  94.95.95.95.96.96.97.97.98.98.99.99   95.95.95.96.96.97.97.98.98.99.99
+  95.95.96.96.97.97.98.98.99.99   95.96.96.96.97.98.98.99.99
+  96.96.96.97.98.98.99.99   96.96.97.97.98.99.99   96.97.97.98.99.99
+  97.97.98.98.99   97.98.98.99}
+
+do_execsql_test 1.18.14.4 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2
+} {20.30.30.30.40.50.60.70.80.80.90.90.90
+  10.30.30.30.40.50.60.70.80.80.90.90.90
+  10.20.30.30.40.50.60.70.80.80.90.90.90
+  10.20.30.30.40.50.60.70.80.80.90.90.90
+  10.20.30.30.40.50.60.70.80.80.90.90.90
+  20.30.30.30.50.60.70.80.80.90.90.90   30.30.30.40.60.70.80.80.90.90.90
+  30.30.40.50.70.80.80.90.90.90   30.40.50.60.80.80.90.90.90
+  40.50.60.70.80.90.90.90   50.60.70.80.90.90.90   60.70.80.80.90.90
+  70.80.80.90.90   80.80.90.90
+  1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  1.1.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  1.1.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  1.1.11.11.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  1.11.11.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  11.11.21.21.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  11.21.21.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  21.21.31.31.41.51.61.61.81.81.81.91.91.91.91.91
+  21.31.31.41.51.61.61.81.81.81.91.91.91.91.91
+  31.31.41.41.61.61.81.81.81.91.91.91.91.91
+  31.41.41.51.61.81.81.81.91.91.91.91.91
+  41.41.51.61.81.81.81.91.91.91.91.91   41.51.61.61.81.81.91.91.91.91.91
+  51.61.61.81.81.91.91.91.91.91   61.61.81.81.91.91.91.91.91
+  61.81.81.81.91.91.91.91   81.81.81.91.91.91.91   81.81.91.91.91.91
+  81.91.91.91.91   91.91.91.91   2.12.12.12.22.22.32.42.52.62.62.72.72.72.82
+  2.12.12.12.22.22.32.42.52.62.62.72.72.72.82
+  2.2.12.12.22.22.32.42.52.62.62.72.72.72.82
+  2.2.12.12.22.22.32.42.52.62.62.72.72.72.82
+  2.2.12.12.22.22.32.42.52.62.62.72.72.72.82
+  2.12.12.12.22.32.42.52.62.62.72.72.72.82
+  12.12.12.22.32.42.52.62.62.72.72.72.82
+  12.12.22.22.42.52.62.62.72.72.72.82   12.22.22.32.52.62.62.72.72.72.82
+  22.22.32.42.62.62.72.72.72.82   22.32.42.52.62.72.72.72.82
+  32.42.52.62.72.72.72.82   42.52.62.62.72.72.82   52.62.62.72.72.82
+  62.62.72.72.82   62.72.72.72
+  3.13.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  3.13.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  3.3.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  3.3.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  3.3.13.13.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  3.13.13.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  13.13.23.23.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  13.23.23.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  23.23.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  23.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  33.33.33.33.43.53.63.73.73.73.83.93.93.93
+  33.33.33.43.53.63.73.73.73.83.93.93.93
+  33.33.43.43.63.73.73.73.83.93.93.93   33.43.43.53.73.73.73.83.93.93.93
+  43.43.53.63.73.73.83.93.93.93   43.53.63.73.73.83.93.93.93
+  53.63.73.73.83.93.93.93   63.73.73.73.93.93.93   73.73.73.83.93.93
+  73.73.83.93.93   73.83.93.93
+  14.24.34.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  4.24.34.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  4.14.34.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  4.14.24.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  4.14.24.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  14.24.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  24.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  34.34.34.34.44.54.64.74.74.74.84.84.84.84.94
+  34.34.34.44.54.64.74.74.74.84.84.84.84.94
+  34.34.44.44.64.74.74.74.84.84.84.84.94
+  34.44.44.54.74.74.74.84.84.84.84.94   44.44.54.64.74.74.84.84.84.84.94
+  44.54.64.74.74.84.84.84.84.94   54.64.74.74.84.84.84.84.94
+  64.74.74.74.84.84.84.94   74.74.74.84.84.84.94   74.74.84.84.84.94
+  74.84.84.84.94   84.84.84.84
+  15.15.15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  5.15.15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  5.15.15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  5.15.15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  5.15.15.15.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  15.15.15.25.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  15.15.25.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  15.25.35.35.55.65.65.65.75.75.75.85.85.85.95.95.95
+  25.35.35.55.65.65.65.75.75.75.85.85.85.95.95.95
+  35.35.55.55.65.65.75.75.75.85.85.85.95.95.95
+  35.55.55.65.65.75.75.75.85.85.85.95.95.95
+  55.55.65.65.75.75.75.85.85.85.95.95.95
+  55.65.65.65.75.75.85.85.85.95.95.95   65.65.65.75.75.85.85.85.95.95.95
+  65.65.75.75.85.85.85.95.95.95   65.75.75.75.85.85.95.95.95
+  75.75.75.85.85.95.95.95   75.75.85.85.95.95.95   75.85.85.85.95.95
+  85.85.85.95.95   85.85.95.95
+  16.16.16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  6.16.16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  6.16.16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  6.16.16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  6.16.16.16.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  16.16.16.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  16.16.26.26.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  16.26.26.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  26.26.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  26.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  36.36.36.36.46.56.56.56.66.76.86.96.96.96
+  36.36.36.46.56.56.56.66.76.86.96.96.96
+  36.36.46.46.56.56.66.76.86.96.96.96   36.46.46.56.56.66.76.86.96.96.96
+  46.46.56.56.66.76.86.96.96.96   46.56.56.56.76.86.96.96.96
+  56.56.56.66.86.96.96.96   56.56.66.76.96.96.96   56.66.76.86.96.96
+  66.76.86.96.96   76.86.96.96
+  7.7.17.27.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  7.7.17.27.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  7.7.17.27.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  7.7.7.27.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  7.7.7.17.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  7.7.17.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  7.17.27.27.37.47.47.47.47.57.67.77.77.87.87.97.97
+  17.27.27.37.47.47.47.47.57.67.77.77.87.87.97.97
+  27.27.37.37.47.47.47.57.67.77.77.87.87.97.97
+  27.37.37.47.47.47.57.67.77.77.87.87.97.97
+  37.37.47.47.47.57.67.77.77.87.87.97.97
+  37.47.47.47.57.67.77.77.87.87.97.97   47.47.47.47.67.77.77.87.87.97.97
+  47.47.47.57.77.77.87.87.97.97   47.47.57.67.77.87.87.97.97
+  47.57.67.77.87.87.97.97   57.67.77.77.87.97.97   67.77.77.87.97.97
+  77.77.87.87.97   77.87.87.97   8.8.28.38.38.58.58.58.58.68.78.78.88.98.98
+  8.8.28.38.38.58.58.58.58.68.78.78.88.98.98
+  8.8.28.38.38.58.58.58.58.68.78.78.88.98.98
+  8.8.8.38.38.58.58.58.58.68.78.78.88.98.98
+  8.8.8.28.38.58.58.58.58.68.78.78.88.98.98
+  8.8.28.38.58.58.58.58.68.78.78.88.98.98
+  8.28.38.38.58.58.58.68.78.78.88.98.98   28.38.38.58.58.58.68.78.78.88.98.98
+  38.38.58.58.58.68.78.78.88.98.98   38.58.58.58.68.78.78.88.98.98
+  58.58.58.58.78.78.88.98.98   58.58.58.68.78.88.98.98   58.58.68.78.88.98.98
+  58.68.78.78.98.98   68.78.78.88.98   78.78.88.98
+  9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  9.9.9.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  9.9.9.19.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  9.9.19.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  9.19.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  19.29.29.29.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  29.29.29.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  29.29.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  29.39.39.39.59.59.59.59.69.79.89.89.89.99.99
+  39.39.39.49.59.59.59.69.79.89.89.89.99.99
+  39.39.49.59.59.59.69.79.89.89.89.99.99
+  39.49.59.59.59.69.79.89.89.89.99.99   49.59.59.59.69.79.89.89.89.99.99
+  59.59.59.59.79.89.89.89.99.99   59.59.59.69.89.89.89.99.99
+  59.59.69.79.89.89.99.99   59.69.79.89.89.99.99   69.79.89.89.99.99
+  79.89.89.89.99   89.89.89.99}
+
+do_execsql_test 1.18.14.5 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW ) FROM t2
+} {40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  90.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  90.40.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  90.40.30.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  90.40.30.80.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  40.30.80.20.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  30.80.20.90.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  80.20.90.60.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
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+  76.96.96.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  96.96.26.26.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  96.26.26.36.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  26.26.36.66.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  26.36.66.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  36.66.36.36.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  66.36.36.97.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  36.36.97.27.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  36.97.27.97.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  97.27.97.67.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  27.97.67.77.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  97.67.77.47.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  67.77.47.7.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  77.47.7.47.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  47.7.47.87.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  7.47.87.37.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  47.87.37.87.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  87.37.87.77.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  37.87.77.7.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  87.77.7.57.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  77.7.57.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  7.57.47.47.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  57.47.47.37.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  47.47.37.27.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  47.37.27.17.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  37.27.17.7.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  27.17.7.38.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  17.7.38.68.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  7.38.68.78.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  38.68.78.8.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  68.78.8.28.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  78.8.28.98.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  8.28.98.78.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  28.98.78.58.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  98.78.58.98.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  78.58.98.8.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  58.98.8.88.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  98.8.88.8.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  8.88.8.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  88.8.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  8.58.58.58.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  58.58.58.38.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  58.58.38.89.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  58.38.89.59.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  38.89.59.39.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.59.39.99.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  59.39.99.29.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  39.99.29.59.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  99.29.59.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  29.59.89.89.9.79.49.59.29.59.19.39.9.9.99.69.39
+  59.89.89.29.79.49.59.29.59.19.39.9.9.99.69.39
+  89.89.29.9.49.59.29.59.19.39.9.9.99.69.39
+  89.29.9.79.59.29.59.19.39.9.9.99.69.39
+  29.9.79.49.29.59.19.39.9.9.99.69.39   9.79.49.59.59.19.39.9.9.99.69.39
+  79.49.59.29.19.39.9.9.99.69.39   49.59.29.59.39.9.9.99.69.39
+  59.29.59.19.9.9.99.69.39   29.59.19.39.9.99.69.39   59.19.39.9.99.69.39
+  19.39.9.9.69.39   39.9.9.99.39   9.9.99.69}
+
+do_execsql_test 1.18.14.6 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.18.14.7 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (win1 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW) 
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a)
+    ORDER BY 1
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.18.14.8 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (win1 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW) 
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a ORDER BY b%10)
+    ORDER BY 1
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.18.14.9 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER win2
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a ORDER BY b%10),
+           win2 AS (win1 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW)
+    ORDER BY 1
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.18.15.1 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE a%2=0) OVER win FROM t2
+    WINDOW win AS (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW)
+} {190 96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  190 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  190 89.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  190 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  190 89.96.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
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+  76 8.49.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  75 49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  74 49.90.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  73 90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  72 90.96.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  71 96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  70 96.55.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  69 55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  68 55.77.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  67 77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  66 77.2.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  65 2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  64 2.85.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  63 85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  62 85.74.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  61 74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  60 74.70.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  59 70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  58 70.19.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  57 19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  56 19.26.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  55 26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  54 26.47.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  53 47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  52 47.90.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  51 90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  50 90.58.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  49 58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  48 58.9.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  47 9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  46 9.72.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  45 72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  44 72.33.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  43 33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  42 33.75.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  41 75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  40 75.81.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  39 81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  38 81.23.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  37 23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  36 23.13.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  35 13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  34 13.14.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  33 14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  32 14.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  31 91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  30 91.91.36.3.69.52.50.10.33.39.58.38.83.82.7
+  29 91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  28 91.15.3.69.52.50.10.33.39.58.38.83.82.7
+  27 15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  26 15.36.69.52.50.10.33.39.58.38.83.82.7
+  25 36.3.69.52.50.10.33.39.58.38.83.82.7
+  24 36.3.52.50.10.33.39.58.38.83.82.7   23 3.69.52.50.10.33.39.58.38.83.82.7
+  22 3.69.50.10.33.39.58.38.83.82.7   21 69.52.50.10.33.39.58.38.83.82.7
+  20 69.52.10.33.39.58.38.83.82.7   19 52.50.10.33.39.58.38.83.82.7
+  18 52.50.33.39.58.38.83.82.7   17 50.10.33.39.58.38.83.82.7
+  16 50.10.39.58.38.83.82.7   15 10.33.39.58.38.83.82.7
+  14 10.33.58.38.83.82.7   13 33.39.58.38.83.82.7   12 33.39.38.83.82.7
+  11 39.58.38.83.82.7   10 39.58.83.82.7   9 58.38.83.82.7   8 58.38.82.7
+  7 38.83.82.7   6 38.83.7   5 83.82.7   4 83.82}
+
+do_execsql_test 1.18.15.2 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE 0=1) OVER win FROM t2
+    WINDOW win AS (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW)
+} {190 {}   190 {}   190 {}   190 {}   190 {}   189 {}   188 {}   187 {}
+  186 {}   185 {}   184 {}   183 {}   182 {}   181 {}   180 {}   179 {}
+  178 {}   177 {}   176 {}   175 {}   174 {}   173 {}   172 {}   171 {}
+  170 {}   169 {}   168 {}   167 {}   166 {}   165 {}   164 {}   163 {}
+  162 {}   161 {}   160 {}   159 {}   158 {}   157 {}   156 {}   155 {}
+  154 {}   153 {}   152 {}   151 {}   150 {}   149 {}   148 {}   147 {}
+  146 {}   145 {}   144 {}   143 {}   142 {}   141 {}   140 {}   139 {}
+  138 {}   137 {}   136 {}   135 {}   134 {}   133 {}   132 {}   131 {}
+  130 {}   129 {}   128 {}   127 {}   126 {}   125 {}   124 {}   123 {}
+  122 {}   121 {}   120 {}   119 {}   118 {}   117 {}   116 {}   115 {}
+  114 {}   113 {}   112 {}   111 {}   110 {}   109 {}   108 {}   107 {}
+  106 {}   105 {}   104 {}   103 {}   102 {}   101 {}   100 {}   99 {}
+  98 {}   97 {}   96 {}   95 {}   94 {}   93 {}   92 {}   91 {}   90 {}
+  89 {}   88 {}   87 {}   86 {}   85 {}   84 {}   83 {}   82 {}   81 {}
+  80 {}   79 {}   78 {}   77 {}   76 {}   75 {}   74 {}   73 {}   72 {}
+  71 {}   70 {}   69 {}   68 {}   67 {}   66 {}   65 {}   64 {}   63 {}
+  62 {}   61 {}   60 {}   59 {}   58 {}   57 {}   56 {}   55 {}   54 {}
+  53 {}   52 {}   51 {}   50 {}   49 {}   48 {}   47 {}   46 {}   45 {}
+  44 {}   43 {}   42 {}   41 {}   40 {}   39 {}   38 {}   37 {}   36 {}
+  35 {}   34 {}   33 {}   32 {}   31 {}   30 {}   29 {}   28 {}   27 {}
+  26 {}   25 {}   24 {}   23 {}   22 {}   21 {}   20 {}   19 {}   18 {}
+  17 {}   16 {}   15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}
+  7 {}   6 {}   5 {}   4 {}}
+
+do_execsql_test 1.18.15.3 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE 1=0) OVER win FROM t2
+    WINDOW win AS (PARTITION BY (a%10) ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW)
+} {19 {}   19 {}   19 {}   19 {}   19 {}   18 {}   17 {}   16 {}   15 {}
+  14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}
+  4 {}   18 {}   18 {}   18 {}   18 {}   18 {}   17 {}   16 {}   15 {}
+  14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}
+  4 {}   18 {}   18 {}   18 {}   18 {}   18 {}   17 {}   16 {}   15 {}
+  14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}
+  4 {}   18 {}   18 {}   18 {}   18 {}   18 {}   17 {}   16 {}   15 {}
+  14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}
+  4 {}   18 {}   18 {}   18 {}   18 {}   18 {}   17 {}   16 {}   15 {}
+  14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}
+  4 {}   18 {}   18 {}   18 {}   18 {}   18 {}   17 {}   16 {}   15 {}
+  14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}
+  4 {}   18 {}   18 {}   18 {}   18 {}   18 {}   17 {}   16 {}   15 {}
+  14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}
+  4 {}   18 {}   18 {}   18 {}   18 {}   18 {}   17 {}   16 {}   15 {}
+  14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}
+  4 {}   18 {}   18 {}   18 {}   18 {}   18 {}   17 {}   16 {}   15 {}
+  14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}
+  4 {}   18 {}   18 {}   18 {}   18 {}   18 {}   17 {}   16 {}   15 {}
+  14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}
+  4 {}}
+
+do_execsql_test 1.18.15.4 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE a%2=0) OVER win FROM t2
+    WINDOW win AS (PARTITION BY (a%10) ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE CURRENT ROW)
+} {19 6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  19 89.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  19 89.6.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  19 89.6.29.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  19 89.6.29.47.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  18 6.29.47.59.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  17 29.47.59.28.78.72.98.87.73.96.74.90.75.91.69.39.7
+  16 47.59.28.75.72.98.87.73.96.74.90.75.91.69.39.7
+  15 59.28.75.78.98.87.73.96.74.90.75.91.69.39.7
+  14 28.75.78.72.87.73.96.74.90.75.91.69.39.7
+  13 75.78.72.98.73.96.74.90.75.91.69.39.7
+  12 78.72.98.87.96.74.90.75.91.69.39.7   11 72.98.87.73.74.90.75.91.69.39.7
+  10 98.87.73.96.90.75.91.69.39.7   9 87.73.96.74.75.91.69.39.7
+  8 73.96.74.90.91.69.39.7   7 96.74.90.75.69.39.7   6 74.90.75.91.39.7
+  5 90.75.91.69.7   4 75.91.69.39   18 {}   18 {}   18 {}   18 {}   18 {}
+  17 {}   16 {}   15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}
+  7 {}   6 {}   5 {}   4 {}
+  18 97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  18 96.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  18 96.97.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  18 96.97.84.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  18 96.97.84.86.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  17 97.84.86.32.89.29.9.21.12.88.55.70.58.81.91.52.58
+  16 84.86.32.25.29.9.21.12.88.55.70.58.81.91.52.58
+  15 86.32.25.89.9.21.12.88.55.70.58.81.91.52.58
+  14 32.25.89.29.21.12.88.55.70.58.81.91.52.58
+  13 25.89.29.9.12.88.55.70.58.81.91.52.58
+  12 89.29.9.21.88.55.70.58.81.91.52.58   11 29.9.21.12.55.70.58.81.91.52.58
+  10 9.21.12.88.70.58.81.91.52.58   9 21.12.88.55.58.81.91.52.58
+  8 12.88.55.70.81.91.52.58   7 88.55.70.58.91.52.58   6 55.70.58.81.52.58
+  5 70.58.81.91.58   4 58.81.91.52   18 {}   18 {}   18 {}   18 {}   18 {}
+  17 {}   16 {}   15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}
+  7 {}   6 {}   5 {}   4 {}
+  18 46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  18 38.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  18 38.46.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  18 38.46.23.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  18 38.46.23.61.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  17 46.23.61.3.76.63.73.65.20.8.77.19.9.23.15.50.38
+  16 23.61.3.1.63.73.65.20.8.77.19.9.23.15.50.38
+  15 61.3.1.76.73.65.20.8.77.19.9.23.15.50.38
+  14 3.1.76.63.65.20.8.77.19.9.23.15.50.38
+  13 1.76.63.73.20.8.77.19.9.23.15.50.38
+  12 76.63.73.65.8.77.19.9.23.15.50.38   11 63.73.65.20.77.19.9.23.15.50.38
+  10 73.65.20.8.19.9.23.15.50.38   9 65.20.8.77.9.23.15.50.38
+  8 20.8.77.19.23.15.50.38   7 8.77.19.9.15.50.38   6 77.19.9.23.50.38
+  5 19.9.23.15.38   4 9.23.15.50   18 {}   18 {}   18 {}   18 {}   18 {}
+  17 {}   16 {}   15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}
+  7 {}   6 {}   5 {}   4 {}
+  18 54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  18 39.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  18 39.54.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  18 39.54.16.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  18 39.54.16.85.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  17 54.16.85.22.4.87.65.5.31.49.2.26.72.13.36.10.83
+  16 16.85.22.40.87.65.5.31.49.2.26.72.13.36.10.83
+  15 85.22.40.4.65.5.31.49.2.26.72.13.36.10.83
+  14 22.40.4.87.5.31.49.2.26.72.13.36.10.83
+  13 40.4.87.65.31.49.2.26.72.13.36.10.83
+  12 4.87.65.5.49.2.26.72.13.36.10.83   11 87.65.5.31.2.26.72.13.36.10.83
+  10 65.5.31.49.26.72.13.36.10.83   9 5.31.49.2.72.13.36.10.83
+  8 31.49.2.26.13.36.10.83   7 49.2.26.72.36.10.83   6 2.26.72.13.10.83
+  5 26.72.13.36.83   4 72.13.36.10   18 {}   18 {}   18 {}   18 {}   18 {}
+  17 {}   16 {}   15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}
+  7 {}   6 {}   5 {}   4 {}
+  18 8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  18 91.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  18 91.8.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  18 91.8.65.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  18 91.8.65.85.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  17 8.65.85.55.42.80.58.11.95.90.85.47.33.14.3.33.82
+  16 65.85.55.56.80.58.11.95.90.85.47.33.14.3.33.82
+  15 85.55.56.42.58.11.95.90.85.47.33.14.3.33.82
+  14 55.56.42.80.11.95.90.85.47.33.14.3.33.82
+  13 56.42.80.58.95.90.85.47.33.14.3.33.82
+  12 42.80.58.11.90.85.47.33.14.3.33.82   11 80.58.11.95.85.47.33.14.3.33.82
+  10 58.11.95.90.47.33.14.3.33.82   9 11.95.90.85.33.14.3.33.82
+  8 95.90.85.47.14.3.33.82   7 90.85.47.33.3.33.82   6 85.47.33.14.33.82
+  5 47.33.14.3.82   4 33.14.3.33   18 {}   18 {}   18 {}   18 {}   18 {}
+  17 {}   16 {}   15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}
+  7 {}   6 {}   5 {}   4 {}}
+
+do_execsql_test 1.19.2.1 {
+  SELECT max(b) OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2
+} {99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   95   95   84   84   84   84   84   84
+  84   84   83   83   83   83   83   83   83   83   83}
+
+do_execsql_test 1.19.2.2 {
+  SELECT min(b) OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3
+  3   3   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7
+  7}
+
+do_execsql_test 1.19.3.1 {
+  SELECT row_number() OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.19.3.2 {
+  SELECT row_number() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.19.3.3 {
+  SELECT row_number() OVER ( ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.19.4.1 {
+  SELECT dense_rank() OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.19.4.2 {
+  SELECT dense_rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.19.4.3 {
+  SELECT dense_rank() OVER ( ORDER BY b ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2
+} {1   1   2   2   3   3   4   5   6   7   7   7   8   8   8   9   9   9   10
+  11   11   12   12   12   13   13   14   15   15   15   16   16   16   17
+  18   19   20   20   21   21   22   22   23   24   25   25   26   26   27
+  28   28   28   29   29   29   30   30   31   32   32   32   32   33   33
+  33   33   34   34   35   35   35   35   36   36   37   37   38   38   38
+  39   40   40   41   42   42   43   43   44   44   45   45   45   45   46
+  47   48   49   50   51   52   52   53   53   53   54   55   55   55   55
+  56   56   56   56   57   58   58   59   59   60   61   62   62   62   63
+  64   65   66   67   68   68   68   69   69   69   70   70   70   71   71
+  71   72   73   73   74   74   75   76   76   77   77   77   78   79   80
+  80   80   80   81   81   81   82   83   83   84   85   85   85   86   86
+  86   87   87   87   87   87   88   88   88   89   90   90   90   91   91
+  91   92   92   93   93   94   94}
+
+do_execsql_test 1.19.4.4 {
+  SELECT dense_rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2
+} {1   2   3   3   3   4   5   6   7   8   8   9   9   9   1   1   2   2   3
+  3   4   4   5   5   6   7   7   8   8   8   9   9   9   9   9   1   1   2
+  2   2   3   3   4   5   6   7   7   8   8   8   9   1   1   2   2   3   3
+  4   4   4   4   5   5   6   7   8   8   8   9   10   10   10   1   2   3
+  4   4   4   4   5   5   6   7   8   8   8   9   9   9   9   10   1   2   2
+  2   3   4   4   5   5   6   6   6   7   7   7   8   8   8   9   9   9   1
+  2   2   2   3   3   4   4   4   4   5   5   6   6   6   7   8   9   10   10
+  10   1   1   1   2   3   3   4   4   5   5   5   5   6   7   8   8   9   9
+  10   10   1   1   1   2   3   3   4   4   4   4   5   6   6   7   8   8   1
+  1   1   2   3   3   3   4   4   4   5   6   6   6   6   7   8   9   9   9
+  10   10}
+
+do_execsql_test 1.19.4.5 {
+  SELECT dense_rank() OVER ( ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   4   4   4   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5   5   5   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   6   6   6   6
+  6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   7   7
+  7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7
+  8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8
+  8   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   10   10
+  10   10   10   10   10   10   10   10   10   10   10   10   10   10   10
+  10   10   10   10   10}
+
+do_execsql_test 1.19.4.6 {
+  SELECT dense_rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   3   3   3   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   4   4   4   4   4   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   5   5   5   5   5   5
+  5   5   5   5   5   5   5   5   5   5   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5
+  5}
+
+do_execsql_test 1.19.5.1 {
+  SELECT rank() OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.19.5.2 {
+  SELECT rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.19.5.3 {
+  SELECT rank() OVER ( ORDER BY b ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2
+} {1   1   3   3   5   5   7   8   9   10   10   10   13   13   13   16   16
+  16   19   20   20   22   22   22   25   25   27   28   28   28   31   31
+  31   34   35   36   37   37   39   39   41   41   43   44   45   45   47
+  47   49   50   50   50   53   53   53   56   56   58   59   59   59   59
+  63   63   63   63   67   67   69   69   69   69   73   73   75   75   77
+  77   77   80   81   81   83   84   84   86   86   88   88   90   90   90
+  90   94   95   96   97   98   99   100   100   102   102   102   105   106
+  106   106   106   110   110   110   110   114   115   115   117   117   119
+  120   121   121   121   124   125   126   127   128   129   129   129   132
+  132   132   135   135   135   138   138   138   141   142   142   144   144
+  146   147   147   149   149   149   152   153   154   154   154   154   158
+  158   158   161   162   162   164   165   165   165   168   168   168   171
+  171   171   171   171   176   176   176   179   180   180   180   183   183
+  183   186   186   188   188   190   190}
+
+do_execsql_test 1.19.5.4 {
+  SELECT rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2
+} {1   2   3   3   3   6   7   8   9   10   10   12   12   12   1   1   3   3
+  5   5   7   7   9   9   11   12   12   14   14   14   17   17   17   17
+  17   1   1   3   3   3   6   6   8   9   10   11   11   13   13   13   16
+  1   1   3   3   5   5   7   7   7   7   11   11   13   14   15   15   15
+  18   19   19   19   1   2   3   4   4   4   4   8   8   10   11   12   12
+  12   15   15   15   15   19   1   2   2   2   5   6   6   8   8   10   10
+  10   13   13   13   16   16   16   19   19   19   1   2   2   2   5   5   7
+  7   7   7   11   11   13   13   13   16   17   18   19   19   19   1   1
+  1   4   5   5   7   7   9   9   9   9   13   14   15   15   17   17   19
+  19   1   1   1   4   5   5   7   7   7   7   11   12   12   14   15   15
+  1   1   1   4   5   5   5   8   8   8   11   12   12   12   12   16   17
+  18   18   18   21   21}
+
+do_execsql_test 1.19.5.5 {
+  SELECT rank() OVER ( ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   15   15   15   15
+  15   15   15   15   15   15   15   15   15   15   15   15   15   15   15
+  15   15   36   36   36   36   36   36   36   36   36   36   36   36   36
+  36   36   36   52   52   52   52   52   52   52   52   52   52   52   52
+  52   52   52   52   52   52   52   52   52   73   73   73   73   73   73
+  73   73   73   73   73   73   73   73   73   73   73   73   73   92   92
+  92   92   92   92   92   92   92   92   92   92   92   92   92   92   92
+  92   92   92   92   113   113   113   113   113   113   113   113   113
+  113   113   113   113   113   113   113   113   113   113   113   113   134
+  134   134   134   134   134   134   134   134   134   134   134   134   134
+  134   134   134   134   134   134   154   154   154   154   154   154   154
+  154   154   154   154   154   154   154   154   154   170   170   170   170
+  170   170   170   170   170   170   170   170   170   170   170   170   170
+  170   170   170   170   170}
+
+do_execsql_test 1.19.5.6 {
+  SELECT rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   15   15   15   15
+  15   15   15   15   15   15   15   15   15   15   15   15   31   31   31
+  31   31   31   31   31   31   31   31   31   31   31   31   31   31   31
+  31   50   50   50   50   50   50   50   50   50   50   50   50   50   50
+  50   50   50   50   50   50   50   71   71   71   71   71   71   71   71
+  71   71   71   71   71   71   71   71   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   22   22   22   22   22   22
+  22   22   22   22   22   22   22   22   22   22   22   22   22   22   22
+  43   43   43   43   43   43   43   43   43   43   43   43   43   43   43
+  43   43   43   43   43   43   64   64   64   64   64   64   64   64   64
+  64   64   64   64   64   64   64   64   64   64   64   84   84   84   84
+  84   84   84   84   84   84   84   84   84   84   84   84   84   84   84
+  84   84   84}
+
+do_execsql_test 1.19.6.1 {
+  SELECT 
+      row_number() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ),
+      rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ),
+      dense_rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES )
+    FROM t2
+} {1 1 1   2 1 1   3 1 1   4 1 1   5 1 1   6 1 1   7 1 1   8 1 1   9 1 1
+  10 1 1   11 1 1   12 1 1   13 1 1   14 1 1   15 15 2   16 15 2   17 15 2
+  18 15 2   19 15 2   20 15 2   21 15 2   22 15 2   23 15 2   24 15 2
+  25 15 2   26 15 2   27 15 2   28 15 2   29 15 2   30 15 2   31 31 3
+  32 31 3   33 31 3   34 31 3   35 31 3   36 31 3   37 31 3   38 31 3
+  39 31 3   40 31 3   41 31 3   42 31 3   43 31 3   44 31 3   45 31 3
+  46 31 3   47 31 3   48 31 3   49 31 3   50 50 4   51 50 4   52 50 4
+  53 50 4   54 50 4   55 50 4   56 50 4   57 50 4   58 50 4   59 50 4
+  60 50 4   61 50 4   62 50 4   63 50 4   64 50 4   65 50 4   66 50 4
+  67 50 4   68 50 4   69 50 4   70 50 4   71 71 5   72 71 5   73 71 5
+  74 71 5   75 71 5   76 71 5   77 71 5   78 71 5   79 71 5   80 71 5
+  81 71 5   82 71 5   83 71 5   84 71 5   85 71 5   86 71 5   1 1 1   2 1 1
+  3 1 1   4 1 1   5 1 1   6 1 1   7 1 1   8 1 1   9 1 1   10 1 1   11 1 1
+  12 1 1   13 1 1   14 1 1   15 1 1   16 1 1   17 1 1   18 1 1   19 1 1
+  20 1 1   21 1 1   22 22 2   23 22 2   24 22 2   25 22 2   26 22 2   27 22 2
+  28 22 2   29 22 2   30 22 2   31 22 2   32 22 2   33 22 2   34 22 2
+  35 22 2   36 22 2   37 22 2   38 22 2   39 22 2   40 22 2   41 22 2
+  42 22 2   43 43 3   44 43 3   45 43 3   46 43 3   47 43 3   48 43 3
+  49 43 3   50 43 3   51 43 3   52 43 3   53 43 3   54 43 3   55 43 3
+  56 43 3   57 43 3   58 43 3   59 43 3   60 43 3   61 43 3   62 43 3
+  63 43 3   64 64 4   65 64 4   66 64 4   67 64 4   68 64 4   69 64 4
+  70 64 4   71 64 4   72 64 4   73 64 4   74 64 4   75 64 4   76 64 4
+  77 64 4   78 64 4   79 64 4   80 64 4   81 64 4   82 64 4   83 64 4
+  84 84 5   85 84 5   86 84 5   87 84 5   88 84 5   89 84 5   90 84 5
+  91 84 5   92 84 5   93 84 5   94 84 5   95 84 5   96 84 5   97 84 5
+  98 84 5   99 84 5   100 84 5   101 84 5   102 84 5   103 84 5   104 84 5
+  105 84 5}
+
+
+do_test 1.19.7.1 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0053 0.0105 0.0158 0.0211 0.0263 0.0316 0.0368 0.0421 0.0474 0.0526 0.0579 0.0632 0.0684 0.0737 0.0789 0.0842 0.0895 0.0947 0.1000 0.1053 0.1105 0.1158 0.1211 0.1263 0.1316 0.1368 0.1421 0.1474 0.1526 0.1579 0.1632 0.1684 0.1737 0.1789 0.1842 0.1895 0.1947 0.2000 0.2053 0.2105 0.2158 0.2211 0.2263 0.2316 0.2368 0.2421 0.2474 0.2526 0.2579 0.2632 0.2684 0.2737 0.2789 0.2842 0.2895 0.2947 0.3000 0.3053 0.3105 0.3158 0.3211 0.3263 0.3316 0.3368 0.3421 0.3474 0.3526 0.3579 0.3632 0.3684 0.3737 0.3789 0.3842 0.3895 0.3947 0.4000 0.4053 0.4105 0.4158 0.4211 0.4263 0.4316 0.4368 0.4421 0.4474 0.4526 0.4579 0.4632 0.4684 0.4737 0.4789 0.4842 0.4895 0.4947 0.5000 0.5053 0.5105 0.5158 0.5211 0.5263 0.5316 0.5368 0.5421 0.5474 0.5526 0.5579 0.5632 0.5684 0.5737 0.5789 0.5842 0.5895 0.5947 0.6000 0.6053 0.6105 0.6158 0.6211 0.6263 0.6316 0.6368 0.6421 0.6474 0.6526 0.6579 0.6632 0.6684 0.6737 0.6789 0.6842 0.6895 0.6947 0.7000 0.7053 0.7105 0.7158 0.7211 0.7263 0.7316 0.7368 0.7421 0.7474 0.7526 0.7579 0.7632 0.7684 0.7737 0.7789 0.7842 0.7895 0.7947 0.8000 0.8053 0.8105 0.8158 0.8211 0.8263 0.8316 0.8368 0.8421 0.8474 0.8526 0.8579 0.8632 0.8684 0.8737 0.8789 0.8842 0.8895 0.8947 0.9000 0.9053 0.9105 0.9158 0.9211 0.9263 0.9316 0.9368 0.9421 0.9474 0.9526 0.9579 0.9632 0.9684 0.9737 0.9789 0.9842 0.9895 0.9947 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.19.7.2 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0769 0.1538 0.2308 0.3077 0.3846 0.4615 0.5385 0.6154 0.6923 0.7692 0.8462 0.9231 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0667 0.1333 0.2000 0.2667 0.3333 0.4000 0.4667 0.5333 0.6000 0.6667 0.7333 0.8000 0.8667 0.9333 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0556 0.1111 0.1667 0.2222 0.2778 0.3333 0.3889 0.4444 0.5000 0.5556 0.6111 0.6667 0.7222 0.7778 0.8333 0.8889 0.9444 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0526 0.1053 0.1579 0.2105 0.2632 0.3158 0.3684 0.4211 0.4737 0.5263 0.5789 0.6316 0.6842 0.7368 0.7895 0.8421 0.8947 0.9474 1.0000 0.0000 0.0667 0.1333 0.2000 0.2667 0.3333 0.4000 0.4667 0.5333 0.6000 0.6667 0.7333 0.8000 0.8667 0.9333 1.0000 0.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.19.7.3 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY b ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0105 0.0105 0.0211 0.0211 0.0316 0.0368 0.0421 0.0474 0.0474 0.0474 0.0632 0.0632 0.0632 0.0789 0.0789 0.0789 0.0947 0.1000 0.1000 0.1105 0.1105 0.1105 0.1263 0.1263 0.1368 0.1421 0.1421 0.1421 0.1579 0.1579 0.1579 0.1737 0.1789 0.1842 0.1895 0.1895 0.2000 0.2000 0.2105 0.2105 0.2211 0.2263 0.2316 0.2316 0.2421 0.2421 0.2526 0.2579 0.2579 0.2579 0.2737 0.2737 0.2737 0.2895 0.2895 0.3000 0.3053 0.3053 0.3053 0.3053 0.3263 0.3263 0.3263 0.3263 0.3474 0.3474 0.3579 0.3579 0.3579 0.3579 0.3789 0.3789 0.3895 0.3895 0.4000 0.4000 0.4000 0.4158 0.4211 0.4211 0.4316 0.4368 0.4368 0.4474 0.4474 0.4579 0.4579 0.4684 0.4684 0.4684 0.4684 0.4895 0.4947 0.5000 0.5053 0.5105 0.5158 0.5211 0.5211 0.5316 0.5316 0.5316 0.5474 0.5526 0.5526 0.5526 0.5526 0.5737 0.5737 0.5737 0.5737 0.5947 0.6000 0.6000 0.6105 0.6105 0.6211 0.6263 0.6316 0.6316 0.6316 0.6474 0.6526 0.6579 0.6632 0.6684 0.6737 0.6737 0.6737 0.6895 0.6895 0.6895 0.7053 0.7053 0.7053 0.7211 0.7211 0.7211 0.7368 0.7421 0.7421 0.7526 0.7526 0.7632 0.7684 0.7684 0.7789 0.7789 0.7789 0.7947 0.8000 0.8053 0.8053 0.8053 0.8053 0.8263 0.8263 0.8263 0.8421 0.8474 0.8474 0.8579 0.8632 0.8632 0.8632 0.8789 0.8789 0.8789 0.8947 0.8947 0.8947 0.8947 0.8947 0.9211 0.9211 0.9211 0.9368 0.9421 0.9421 0.9421 0.9579 0.9579 0.9579 0.9737 0.9737 0.9842 0.9842 0.9947 0.9947}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.19.7.4 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0769 0.1538 0.1538 0.1538 0.3846 0.4615 0.5385 0.6154 0.6923 0.6923 0.8462 0.8462 0.8462 0.0000 0.0000 0.1000 0.1000 0.2000 0.2000 0.3000 0.3000 0.4000 0.4000 0.5000 0.5500 0.5500 0.6500 0.6500 0.6500 0.8000 0.8000 0.8000 0.8000 0.8000 0.0000 0.0000 0.1333 0.1333 0.1333 0.3333 0.3333 0.4667 0.5333 0.6000 0.6667 0.6667 0.8000 0.8000 0.8000 1.0000 0.0000 0.0000 0.1000 0.1000 0.2000 0.2000 0.3000 0.3000 0.3000 0.3000 0.5000 0.5000 0.6000 0.6500 0.7000 0.7000 0.7000 0.8500 0.9000 0.9000 0.9000 0.0000 0.0556 0.1111 0.1667 0.1667 0.1667 0.1667 0.3889 0.3889 0.5000 0.5556 0.6111 0.6111 0.6111 0.7778 0.7778 0.7778 0.7778 1.0000 0.0000 0.0500 0.0500 0.0500 0.2000 0.2500 0.2500 0.3500 0.3500 0.4500 0.4500 0.4500 0.6000 0.6000 0.6000 0.7500 0.7500 0.7500 0.9000 0.9000 0.9000 0.0000 0.0500 0.0500 0.0500 0.2000 0.2000 0.3000 0.3000 0.3000 0.3000 0.5000 0.5000 0.6000 0.6000 0.6000 0.7500 0.8000 0.8500 0.9000 0.9000 0.9000 0.0000 0.0000 0.0000 0.1579 0.2105 0.2105 0.3158 0.3158 0.4211 0.4211 0.4211 0.4211 0.6316 0.6842 0.7368 0.7368 0.8421 0.8421 0.9474 0.9474 0.0000 0.0000 0.0000 0.2000 0.2667 0.2667 0.4000 0.4000 0.4000 0.4000 0.6667 0.7333 0.7333 0.8667 0.9333 0.9333 0.0000 0.0000 0.0000 0.1429 0.1905 0.1905 0.1905 0.3333 0.3333 0.3333 0.4762 0.5238 0.5238 0.5238 0.5238 0.7143 0.7619 0.8095 0.8095 0.8095 0.9524 0.9524}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.19.7.5 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.19.7.6 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER (PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.19.8.1 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0052 0.0105 0.0157 0.0209 0.0262 0.0314 0.0366 0.0419 0.0471 0.0524 0.0576 0.0628 0.0681 0.0733 0.0785 0.0838 0.0890 0.0942 0.0995 0.1047 0.1099 0.1152 0.1204 0.1257 0.1309 0.1361 0.1414 0.1466 0.1518 0.1571 0.1623 0.1675 0.1728 0.1780 0.1832 0.1885 0.1937 0.1990 0.2042 0.2094 0.2147 0.2199 0.2251 0.2304 0.2356 0.2408 0.2461 0.2513 0.2565 0.2618 0.2670 0.2723 0.2775 0.2827 0.2880 0.2932 0.2984 0.3037 0.3089 0.3141 0.3194 0.3246 0.3298 0.3351 0.3403 0.3455 0.3508 0.3560 0.3613 0.3665 0.3717 0.3770 0.3822 0.3874 0.3927 0.3979 0.4031 0.4084 0.4136 0.4188 0.4241 0.4293 0.4346 0.4398 0.4450 0.4503 0.4555 0.4607 0.4660 0.4712 0.4764 0.4817 0.4869 0.4921 0.4974 0.5026 0.5079 0.5131 0.5183 0.5236 0.5288 0.5340 0.5393 0.5445 0.5497 0.5550 0.5602 0.5654 0.5707 0.5759 0.5812 0.5864 0.5916 0.5969 0.6021 0.6073 0.6126 0.6178 0.6230 0.6283 0.6335 0.6387 0.6440 0.6492 0.6545 0.6597 0.6649 0.6702 0.6754 0.6806 0.6859 0.6911 0.6963 0.7016 0.7068 0.7120 0.7173 0.7225 0.7277 0.7330 0.7382 0.7435 0.7487 0.7539 0.7592 0.7644 0.7696 0.7749 0.7801 0.7853 0.7906 0.7958 0.8010 0.8063 0.8115 0.8168 0.8220 0.8272 0.8325 0.8377 0.8429 0.8482 0.8534 0.8586 0.8639 0.8691 0.8743 0.8796 0.8848 0.8901 0.8953 0.9005 0.9058 0.9110 0.9162 0.9215 0.9267 0.9319 0.9372 0.9424 0.9476 0.9529 0.9581 0.9634 0.9686 0.9738 0.9791 0.9843 0.9895 0.9948 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.19.8.2 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0714 0.1429 0.2143 0.2857 0.3571 0.4286 0.5000 0.5714 0.6429 0.7143 0.7857 0.8571 0.9286 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0625 0.1250 0.1875 0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250 0.6875 0.7500 0.8125 0.8750 0.9375 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0526 0.1053 0.1579 0.2105 0.2632 0.3158 0.3684 0.4211 0.4737 0.5263 0.5789 0.6316 0.6842 0.7368 0.7895 0.8421 0.8947 0.9474 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0625 0.1250 0.1875 0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250 0.6875 0.7500 0.8125 0.8750 0.9375 1.0000 0.0455 0.0909 0.1364 0.1818 0.2273 0.2727 0.3182 0.3636 0.4091 0.4545 0.5000 0.5455 0.5909 0.6364 0.6818 0.7273 0.7727 0.8182 0.8636 0.9091 0.9545 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.19.8.3 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY b ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0105 0.0105 0.0209 0.0209 0.0314 0.0314 0.0366 0.0419 0.0471 0.0628 0.0628 0.0628 0.0785 0.0785 0.0785 0.0942 0.0942 0.0942 0.0995 0.1099 0.1099 0.1257 0.1257 0.1257 0.1361 0.1361 0.1414 0.1571 0.1571 0.1571 0.1728 0.1728 0.1728 0.1780 0.1832 0.1885 0.1990 0.1990 0.2094 0.2094 0.2199 0.2199 0.2251 0.2304 0.2408 0.2408 0.2513 0.2513 0.2565 0.2723 0.2723 0.2723 0.2880 0.2880 0.2880 0.2984 0.2984 0.3037 0.3246 0.3246 0.3246 0.3246 0.3455 0.3455 0.3455 0.3455 0.3560 0.3560 0.3770 0.3770 0.3770 0.3770 0.3874 0.3874 0.3979 0.3979 0.4136 0.4136 0.4136 0.4188 0.4293 0.4293 0.4346 0.4450 0.4450 0.4555 0.4555 0.4660 0.4660 0.4869 0.4869 0.4869 0.4869 0.4921 0.4974 0.5026 0.5079 0.5131 0.5183 0.5288 0.5288 0.5445 0.5445 0.5445 0.5497 0.5707 0.5707 0.5707 0.5707 0.5916 0.5916 0.5916 0.5916 0.5969 0.6073 0.6073 0.6178 0.6178 0.6230 0.6283 0.6440 0.6440 0.6440 0.6492 0.6545 0.6597 0.6649 0.6702 0.6859 0.6859 0.6859 0.7016 0.7016 0.7016 0.7173 0.7173 0.7173 0.7330 0.7330 0.7330 0.7382 0.7487 0.7487 0.7592 0.7592 0.7644 0.7749 0.7749 0.7906 0.7906 0.7906 0.7958 0.8010 0.8220 0.8220 0.8220 0.8220 0.8377 0.8377 0.8377 0.8429 0.8534 0.8534 0.8586 0.8743 0.8743 0.8743 0.8901 0.8901 0.8901 0.9162 0.9162 0.9162 0.9162 0.9162 0.9319 0.9319 0.9319 0.9372 0.9529 0.9529 0.9529 0.9686 0.9686 0.9686 0.9791 0.9791 0.9895 0.9895 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.19.8.4 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0714 0.1429 0.3571 0.3571 0.3571 0.4286 0.5000 0.5714 0.6429 0.7857 0.7857 1.0000 1.0000 1.0000 0.0952 0.0952 0.1905 0.1905 0.2857 0.2857 0.3810 0.3810 0.4762 0.4762 0.5238 0.6190 0.6190 0.7619 0.7619 0.7619 1.0000 1.0000 1.0000 1.0000 1.0000 0.1250 0.1250 0.3125 0.3125 0.3125 0.4375 0.4375 0.5000 0.5625 0.6250 0.7500 0.7500 0.9375 0.9375 0.9375 1.0000 0.0952 0.0952 0.1905 0.1905 0.2857 0.2857 0.4762 0.4762 0.4762 0.4762 0.5714 0.5714 0.6190 0.6667 0.8095 0.8095 0.8095 0.8571 1.0000 1.0000 1.0000 0.0526 0.1053 0.1579 0.3684 0.3684 0.3684 0.3684 0.4737 0.4737 0.5263 0.5789 0.7368 0.7368 0.7368 0.9474 0.9474 0.9474 0.9474 1.0000 0.0476 0.1905 0.1905 0.1905 0.2381 0.3333 0.3333 0.4286 0.4286 0.5714 0.5714 0.5714 0.7143 0.7143 0.7143 0.8571 0.8571 0.8571 1.0000 1.0000 1.0000 0.0476 0.1905 0.1905 0.1905 0.2857 0.2857 0.4762 0.4762 0.4762 0.4762 0.5714 0.5714 0.7143 0.7143 0.7143 0.7619 0.8095 0.8571 1.0000 1.0000 1.0000 0.1500 0.1500 0.1500 0.2000 0.3000 0.3000 0.4000 0.4000 0.6000 0.6000 0.6000 0.6000 0.6500 0.7000 0.8000 0.8000 0.9000 0.9000 1.0000 1.0000 0.1875 0.1875 0.1875 0.2500 0.3750 0.3750 0.6250 0.6250 0.6250 0.6250 0.6875 0.8125 0.8125 0.8750 1.0000 1.0000 0.1364 0.1364 0.1364 0.1818 0.3182 0.3182 0.3182 0.4545 0.4545 0.4545 0.5000 0.6818 0.6818 0.6818 0.6818 0.7273 0.7727 0.9091 0.9091 0.9091 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.19.8.5 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.19.8.6 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.19.8.1 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(100) OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 88.0000 89.0000 89.0000 90.0000 90.0000 91.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.19.8.2 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(101) OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 22.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.19.8.3 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(102) OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 88.0000 89.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.19.8.4 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(103) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 22.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.19.8.5 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(104) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000 103.0000 104.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.19.8.6 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(105) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.19.8.7 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(105) OVER ( ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 88.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000 103.0000 104.0000 105.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+do_execsql_test 1.19.9.1 {
+  SELECT last_value(a+b) OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2
+} {207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207}
+
+do_execsql_test 1.19.9.2 {
+  SELECT last_value(a+b) OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2
+} {223   223   223   223   223   223   223   223   223   223   223   223   223
+  223   210   210   210   210   210   210   210   210   210   210   210   210
+  210   210   210   210   210   210   210   210   210   280   280   280   280
+  280   280   280   280   280   280   280   280   280   280   280   280   279
+  279   279   279   279   279   279   279   279   279   279   279   279   279
+  279   279   279   279   279   279   279   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  274   274   274   274   274   274   274   274   274   274   274   274   274
+  274   274   274   274   274   274   274   274   212   212   212   212   212
+  212   212   212   212   212   212   212   212   212   212   212   212   212
+  212   212   212   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   232   232   232
+  232   232   232   232   232   232   232   232   232   232   232   232   232
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229}
+
+do_execsql_test 1.19.9.3 {
+  SELECT last_value(a+b) OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2
+} {276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276}
+
+do_execsql_test 1.19.9.4 {
+  SELECT last_value(a+b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2
+} {240   240   240   240   240   240   240   240   240   240   240   240   240
+  240   263   263   263   263   263   263   263   263   263   263   263   263
+  263   263   263   263   263   263   263   263   263   280   280   280   280
+  280   280   280   280   280   280   280   280   280   280   280   280   252
+  252   252   252   252   252   252   252   252   252   252   252   252   252
+  252   252   252   252   252   252   252   171   171   171   171   171   171
+  171   171   171   171   171   171   171   171   171   171   171   171   171
+  274   274   274   274   274   274   274   274   274   274   274   274   274
+  274   274   274   274   274   274   274   274   226   226   226   226   226
+  226   226   226   226   226   226   226   226   226   226   226   226   226
+  226   226   226   124   124   124   124   124   124   124   124   124   124
+  124   124   124   124   124   124   124   124   124   124   198   198   198
+  198   198   198   198   198   198   198   198   198   198   198   198   198
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276}
+
+do_execsql_test 1.19.9.5 {
+  SELECT last_value(a+b) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2
+} {229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229}
+
+do_execsql_test 1.19.9.6 {
+  SELECT last_value(a+b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES) FROM t2
+} {108   52   83   79   65   26   70   103   80   36   116   51   52   128
+  117   71   63   84   109   78   147   88   121   106   124   85   107   171
+  150   80   171   120   109   158   87   168   173   162   156   195   198
+  177   124   121   134   141   210   157   132   161   218   226   191   179
+  138   214   212   172   173   229   240   187   210   227   228   223   225
+  179   182   231   207   209   212   239   234   213   234   269   196   271
+  235   250   223   232   229   280   99   92   72   55   109   120   119
+  50   124   96   59   124   110   57   130   103   74   87   48   105   136
+  131   133   92   109   57   146   113   74   150   87   110   65   110
+  145   161   156   114   111   136   147   173   124   132   101   154   167
+  190   161   110   102   123   169   140   111   180   119   160   197   152
+  146   147   132   213   193   200   136   175   188   187   208   211   144
+  223   196   170   202   163   184   195   200   163   191   252   235   243
+  172   187   202   179   261   263   206   189   276   181   274   249   221
+  210   229   279   224   216   207}
+
+do_execsql_test 1.19.10.1 {
+  SELECT nth_value(b,b+1) OVER (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES) FROM t2
+} {96   41   5   16   85   30   12   81   35   89   97   31   31   85   40
+  96   4   73   84   9   91   73   12   5   56   24   85   49   96   75   53
+  61   8   8   1   55   34   43   59   80   35   15   78   35   56   70   76
+  59   51   75   63   26   53   5   89   15   21   5   73   33   29   74   66
+  12   26   58   4   12   31   35   9   87   73   55   59   53   62   73   23
+  62   33   90   13   90   9   10   66   5   58   44   38   58   22   33   37
+  2   73   36   31   72   30   47   73   15   96   70   59   90   {}   7   21
+  83   {}   47   90   55   36   66   {}   50   {}   84   30   {}   {}   34
+  77   74   {}   58   {}   13   {}   82   93   69   14   62   44   {}   {}
+  30   {}   83   93   {}   {}   {}   84   {}   {}   {}   {}   14   30   82
+  34   34   3   {}   {}   {}   {}   {}   84   {}   {}   {}   99   {}   {}
+  {}   {}   {}   {}   {}   58   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}}
+
+do_execsql_test 1.19.10.2 {
+  SELECT nth_value(b,b+1) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   61   {}   {}   {}   81   {}   91   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   12   {}   {}   {}   22   {}   82   {}   12
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   43   {}   {}   {}   {}
+  {}   33   {}   {}   {}   {}   {}   {}   {}   33   {}   {}   {}   {}   {}
+  {}   4   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   75   {}   {}   {}   {}   {}   {}   15   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   86   {}   26   36   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   37   {}   {}   {}   {}   {}   47   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   98   {}   {}   {}   {}   {}   58   {}   38
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   59   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.19.10.3 {
+  SELECT nth_value(b,b+1) OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2
+} {1   1   2   2   2   3   4   6   7   8   8   8   9   9   10   11   12   12
+  13   14   15   15   16   16   17   19   21   22   22   23   24   25   26
+  27   29   29   30   30   31   32   33   33   34   34   35   35   36   36
+  37   38   38   39   39   40   41   42   43   44   46   46   47   47   47
+  49   50   51   53   54   55   56   56   56   58   58   58   59   59   59
+  60   61   62   63   65   65   66   68   69   72   72   73   73   74   74
+  75   76   77   78   80   81   81   82   84   84   84   85   85   86   87
+  87   89   89   89   90   90   91   91   91   93   93   95   95   96   96
+  97   98   99   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.19.10.4 {
+  SELECT nth_value(b,b+1) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2
+} {80   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   1   1
+  61   61   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   12   12   72   72   72   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   13   13   63   63   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   34   84   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  35   85   85   85   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   36   76   76   76   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   37   37   37
+  87   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   58   58   58   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   39   39   39   89   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.19.10.5 {
+  SELECT nth_value(b,b+1) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2
+} {34   2   11   34   81   65   73   84   64   55   12   33   91   42   65
+  35   84   15   95   61   25   53   74   81   72   91   84   33   3   43
+  32   85   56   56   93   85   2   93   43   94   22   75   82   13   12
+  46   6   3   55   25   26   47   83   37   85   43   55   34   75   86   36
+  33   36   36   85   68   14   4   25   33   95   27   16   38   77   55   4
+  58   98   37   15   95   16   38   77   55   16   58   38   36   56   7
+  36   59   89   57   75   86   89   39   98   8   97   15   46   {}   28   9
+  69   49   56   {}   {}   78   16   28   26   36   {}   39   99   29   27
+  78   {}   {}   {}   37   27   98   {}   88   8   {}   28   {}   {}   {}
+  59   37   59   {}   89   {}   {}   47   {}   39   {}   29   29   8   78   9
+  {}   {}   58   59   {}   {}   {}   {}   58   {}   38   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   59   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.19.10.6 {
+  SELECT nth_value(b,b+1) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.19.11.1 {
+  SELECT first_value(b) OVER (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES) FROM t2
+} {89   89   89   89   89   81   96   59   38   68   39   62   91   46   6
+  99   97   27   46   78   54   97   8   67   29   93   84   77   23   16
+  16   93   65   35   47   7   86   74   61   91   85   24   85   43   59
+  12   32   56   3   91   22   90   55   15   28   89   25   47   1   56   40
+  43   56   16   75   36   89   98   76   81   4   94   42   30   78   33
+  29   53   63   2   87   37   80   84   72   41   9   61   73   95   65   13
+  58   96   98   1   21   74   65   35   5   73   11   51   87   41   12   8
+  20   31   31   15   95   22   73   79   88   34   8   11   49   34   90
+  59   96   60   55   75   77   44   2   7   85   57   74   29   70   59   19
+  39   26   26   47   80   90   36   58   47   9   72   72   66   33   93
+  75   64   81   9   23   37   13   12   14   62   91   36   91   33   15
+  34   36   99   3   95   69   58   52   30   50   84   10   84   33   21
+  39   44   58   30   38   34   83}
+
+do_execsql_test 1.19.11.2 {
+  SELECT first_value(b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES) FROM t2
+} {90   90   90   90   90   40   30   80   20   90   60   70   80   90   81
+  81   81   81   81   91   61   91   91   1   81   41   61   1   21   11   51
+  41   31   31   11   62   62   62   62   62   12   32   22   42   2   72
+  12   22   2   72   72   93   93   93   93   93   23   93   43   3   43   33
+  53   63   73   13   73   73   33   93   23   13   54   54   54   54   54
+  84   74   24   4   94   84   74   34   34   44   74   64   14   34   65
+  65   65   65   65   35   85   85   55   15   25   75   95   65   65   35
+  5   15   95   55   75   96   96   96   96   96   46   6   46   16   16   86
+  56   56   56   16   36   76   96   96   26   26   97   97   97   97   97
+  27   97   67   77   47   7   47   87   37   87   77   7   57   47   47   38
+  38   38   38   38   68   78   8   28   98   78   58   98   8   88   8   89
+  89   89   89   89   59   39   99   29   59   89   89   29   9   79   49
+  59   29   59   19   39   9}
+
+do_execsql_test 1.19.11.3 {
+  SELECT first_value(b) OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2
+} {1   1   1   1   1   1   2   2   3   3   4   5   6   7   7   7   8   8   8
+  9   9   9   10   11   11   12   12   12   13   13   14   15   15   15   16
+  16   16   17   19   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   30   30   30   31   31   32   33   33   33
+  33   34   34   34   34   35   35   36   36   36   36   37   37   38   38
+  39   39   39   40   41   41   42   43   43   44   44   46   46   47   47
+  47   47   49   50   51   52   53   54   55   55   56   56   56   57   58
+  58   58   58   59   59   59   59   60   61   61   62   62   63   64   65
+  65   65   66   67   68   69   70   72   72   72   73   73   73   74   74
+  74   75   75   75   76   77   77   78   78   79   80   80   81   81   81
+  82   83   84   84   84   84   85   85   85   86   87   87   88   89   89
+  89   90   90   90   91   91   91   91   91   93   93   93   94   95   95
+  95   96   96   96   97   97}
+
+do_execsql_test 1.19.11.4 {
+  SELECT first_value(b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2
+} {10   10   10   10   10   20   30   30   30   40   50   60   70   80   1   1
+  1   1   1   1   11   11   21   21   31   31   41   41   51   61   61   81
+  81   81   91   2   2   2   2   2   2   12   12   12   22   22   32   42
+  52   62   62   3   3   3   3   3   3   13   13   23   23   33   33   33
+  33   43   43   53   63   73   73   73   4   4   4   4   4   14   24   34
+  34   34   34   44   44   54   64   74   74   74   84   5   5   5   5   5
+  15   15   15   25   35   35   55   55   65   65   65   75   75   75   85
+  85   6   6   6   6   6   16   16   16   26   26   36   36   36   36   46
+  46   56   56   56   66   76   7   7   7   7   7   7   7   17   27   27   37
+  37   47   47   47   47   57   67   77   77   8   8   8   8   8   8   8   28
+  38   38   58   58   58   58   68   78   9   9   9   9   9   9   9   19   29
+  29   29   39   39   39   49   59   59   59   59   69   79   89}
+
+do_execsql_test 1.19.11.5 {
+  SELECT first_value(b) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2
+} {90   90   90   90   90   40   30   80   20   90   60   70   80   90   30
+  50   10   30   81   91   61   91   91   1   81   41   61   1   21   11   51
+  41   31   31   11   81   91   91   21   62   12   32   22   42   2   72
+  12   22   2   72   72   12   62   52   82   93   23   93   43   3   43   33
+  53   63   73   13   73   73   33   93   23   13   33   3   33   83   54
+  84   74   24   4   94   84   74   34   34   44   74   64   14   34   84
+  84   44   34   65   35   85   85   55   15   25   75   95   65   65   35
+  5   15   95   55   75   85   75   15   95   96   46   6   46   16   16   86
+  56   56   56   16   36   76   96   96   26   26   36   66   36   36   97
+  27   97   67   77   47   7   47   87   37   87   77   7   57   47   47   37
+  27   17   7   38   68   78   8   28   98   78   58   98   8   88   8   58
+  58   58   38   89   59   39   99   29   59   89   89   29   9   79   49
+  59   29   59   19   39   9}
+
+do_execsql_test 1.19.11.6 {
+  SELECT first_value(b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES) FROM t2
+} {96   38   68   62   46   6   46   78   54   8   84   16   16   86   74   24
+  12   32   56   22   90   28   56   40   56   16   36   98   76   4   94
+  42   30   78   2   80   84   72   58   96   98   74   12   8   20   22   88
+  34   8   34   90   96   60   44   2   74   70   26   26   80   90   36   58
+  72   72   66   64   12   14   62   36   34   36   58   52   30   50   84
+  10   84   44   58   30   38   34   82   89   81   59   39   91   99   97
+  27   97   67   29   93   77   23   93   65   35   47   7   61   91   85
+  85   43   59   3   91   55   15   89   25   47   1   43   75   89   81   33
+  29   53   63   87   37   41   9   61   73   95   65   13   1   21   65   35
+  5   73   11   51   87   41   31   31   15   95   73   79   11   49   59
+  55   75   77   7   85   57   29   59   19   39   47   47   9   33   93   75
+  81   9   23   37   13   91   91   33   15   99   3   95   69   33   21   39
+  83   27   17   7}
+
+do_execsql_test 1.19.12.1 {
+  SELECT lead(b,b) OVER (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES) FROM t2
+} {96   9   11   89   32   53   91   30   51   56   54   73   22   59   75
+  74   78   8   16   65   15   8   31   87   90   12   32   96   74   76   37
+  85   90   15   35   2   60   36   75   9   51   47   63   51   90   26   42
+  26   8   76   80   90   37   87   56   79   5   87   8   2   39   73   64
+  36   90   72   78   36   73   51   33   20   41   2   26   37   33   8   14
+  33   81   55   1   9   12   39   64   87   72   34   82   21   34   99   62
+  74   41   69   22   75   27   58   8   79   77   26   26   55   {}   29
+  30   7   {}   66   55   2   34   64   {}   33   {}   44   84   {}   {}   95
+  85   19   {}   83   {}   91   {}   {}   9   50   91   33   34   {}   {}
+  84   {}   7   9   {}   {}   {}   44   {}   {}   {}   {}   91   84   {}   95
+  95   52   {}   {}   {}   {}   {}   21   {}   {}   {}   58   {}   {}   {}
+  {}   {}   {}   {}   83   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}}
+
+do_execsql_test 1.19.12.2 {
+  SELECT lead(b,b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   81   {}   {}   {}   21   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   62   {}   {}   {}   12   {}   {}   {}   72
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   53   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   34   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   95   {}   {}   {}   {}   {}   {}   85   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   56   {}   36   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   57   {}   {}   {}   {}   {}   7   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   8   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.19.12.3 {
+  SELECT lead(b,b) OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2
+} {1   2   3   3   5   6   7   8   8   9   9   10   11   12   12   13   13
+  14   15   16   16   17   19   20   21   22   23   24   25   26   27   27
+  28   29   30   31   32   33   33   33   34   34   35   36   36   36   37
+  38   39   39   40   41   42   43   43   44   46   47   47   47   49   50
+  52   53   54   55   56   56   57   58   58   58   59   59   59   60   61
+  62   62   64   65   65   67   69   70   72   72   73   74   74   75   75
+  75   77   78   80   81   81   83   84   84   85   85   85   87   88   89
+  89   89   90   90   91   91   91   93   93   94   95   95   96   97   97
+  98   99   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.19.12.4 {
+  SELECT lead(b,b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2
+} {80   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   1
+  11   81   81   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   12   12   72   82   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   13   23   73   73   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   34   84   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   35   85   85   95   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   36   86   96   96   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   37   47
+  47   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   58   58   68   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   39   49   59   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.19.12.5 {
+  SELECT lead(b,b) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2
+} {34   72   91   74   21   55   23   94   84   95   2   13   61   22   55
+  55   94   85   75   81   65   73   74   21   72   12   94   33   63   73
+  72   96   36   76   3   25   62   3   73   34   12   46   43   93   72   16
+  86   63   15   65   36   77   24   57   25   53   95   34   95   16   97
+  74   97   67   25   98   44   34   65   54   5   68   96   28   47   95
+  34   39   8   38   6   46   96   28   47   95   56   39   99   97   76   8
+  26   9   79   27   95   16   29   {}   58   58   77   85   56   {}   98
+  29   {}   19   96   {}   {}   78   56   98   36   97   {}   89   89   29
+  47   78   {}   {}   {}   38   68   58   {}   58   38   {}   98   {}   {}
+  {}   39   57   9   {}   79   {}   {}   7   {}   {}   {}   9   29   38   78
+  {}   {}   {}   8   39   {}   {}   {}   {}   59   {}   99   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.19.12.6 {
+  SELECT lead(b,b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.19.13.1 {
+  SELECT lag(b,b) OVER (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   38   {}   {}   {}   {}
+  {}   {}   {}   6   {}   {}   {}   {}   {}   81   46   6   {}   {}   {}   {}
+  23   {}   {}   {}   {}   {}   27   {}   {}   {}   35   6   {}   12   {}
+  23   {}   {}   61   84   {}   93   39   47   {}   54   46   96   56   {}
+  16   {}   {}   {}   {}   89   {}   16   43   {}   85   56   29   99   53
+  {}   59   {}   {}   91   59   53   84   99   {}   93   63   47   {}   {}
+  98   33   67   35   75   1   23   13   55   27   75   98   35   73   63   2
+  21   27   13   24   86   23   84   31   20   94   61   65   75   23   36
+  94   55   90   41   77   96   56   29   40   12   89   63   11   5   73
+  79   1   16   28   31   73   5   39   53   63   41   11   40   2   13   33
+  9   29   90   47   72   9   73   30   44   33   74   93   29   74   42   34
+  63   41   34   96   47   77   1   36   74   72   14   36   26   77   9   72
+  64   8   91   31   52   30}
+
+do_execsql_test 1.19.13.2 {
+  SELECT lag(b,b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   61   {}   81   {}   {}   {}   {}
+  1   {}   {}   {}   {}   {}   {}   {}   {}   {}   22   {}   {}   {}   12
+  {}   {}   62   {}   {}   {}   {}   {}   {}   {}   23   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   43   {}   23   {}   {}   {}   {}   {}
+  {}   54   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   75   {}
+  {}   {}   {}   {}   {}   55   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   47   {}   {}   {}   {}
+  {}   27   7   {}   {}   {}   {}   {}   {}   {}   {}   {}   68   {}   8   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   89   {}   {}
+  {}   {}   {}   {}   {}   29   9   {}   {}   {}}
+
+do_execsql_test 1.19.13.3 {
+  SELECT lag(b,b) OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2
+} {{}   1   1   1   1   2   2   2   2   2   2   3   3   3   4   4   5   6   6
+  6   7   7   7   7   7   8   8   8   8   8   8   9   9   9   9   9   9   9
+  9   9   9   10   10   10   10   11   11   11   11   11   12   12   12   12
+  13   13   13   13   13   14   15   15   15   15   16   16   16   16   16
+  17   19   20   20   21   21   21   21   22   22   22   22   23   23   23
+  23   23   24   23   24   24   25   26   26   26   26   26   26   26   26
+  26   26   26   27   27   27   27   28   29   29   29   29   30   30   30
+  30   30   30   31   31   31   31   31   32   32   32   32   32   32   31
+  32   33   33   33   33   33   33   34   34   34   34   34   34   34   34
+  35   35   35   35   35   36   36   36   36   36   36   36   37   37   37
+  38   38   38   38   38   38   39   39   39   39   40   40   41   41   42
+  43   42   43   43   43   43   44   44   44   46   46   46   47   47   47
+  47   47}
+
+do_execsql_test 1.19.13.4 {
+  SELECT lag(b,b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  1   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.19.13.5 {
+  SELECT lag(b,b) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   61   80   81   {}   {}   {}   {}
+  1   {}   {}   {}   30   {}   21   90   61   {}   22   {}   11   41   12
+  {}   {}   62   {}   {}   {}   {}   31   {}   50   23   30   21   90   {}
+  {}   62   {}   {}   81   {}   22   43   62   23   32   {}   91   {}   90
+  93   54   {}   {}   90   72   12   22   90   81   83   23   80   20   72
+  43   51   33   80   90   2   34   54   1   20   62   12   13   75   44   30
+  93   91   1   21   55   61   61   13   85   3   65   65   91   73   33   93
+  55   84   62   31   11   65   35   85   33   55   15   12   75   22   3
+  73   65   36   85   43   95   43   13   47   44   65   65   96   36   27
+  7   46   34   94   47   36   73   34   35   73   68   24   8   75   85   75
+  66   34   95   36   84   77   46   34   84   47   89   65   36   16   38
+  76   58   57   29   9   44   56   17}
+
+do_execsql_test 1.19.13.6 {
+  SELECT lag(b,b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.19.14.1 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES) FROM t2
+} {89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  89.81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
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+  81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  33.21.39.44.58.30.38.34.83.27.82.17.7   21.39.44.58.30.38.34.83.27.82.17.7
+  39.44.58.30.38.34.83.27.82.17.7   44.58.30.38.34.83.27.82.17.7
+  58.30.38.34.83.27.82.17.7   30.38.34.83.27.82.17.7   38.34.83.27.82.17.7
+  34.83.27.82.17.7   83.27.82.17.7}
+
+do_execsql_test 1.19.14.2 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES) FROM t2
+} {90.40.30.80.20.90.60.70.80.90.30.50.10.30
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30
+  90.40.30.80.20.90.60.70.80.90.30.50.10.30
+  40.30.80.20.90.60.70.80.90.30.50.10.30
+  30.80.20.90.60.70.80.90.30.50.10.30   80.20.90.60.70.80.90.30.50.10.30
+  20.90.60.70.80.90.30.50.10.30   90.60.70.80.90.30.50.10.30
+  60.70.80.90.30.50.10.30   70.80.90.30.50.10.30   80.90.30.50.10.30
+  90.30.50.10.30
+  81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  81.41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  41.61.1.21.11.51.41.31.31.11.81.91.91.21
+  61.1.21.11.51.41.31.31.11.81.91.91.21   1.21.11.51.41.31.31.11.81.91.91.21
+  21.11.51.41.31.31.11.81.91.91.21   11.51.41.31.31.11.81.91.91.21
+  51.41.31.31.11.81.91.91.21   41.31.31.11.81.91.91.21   31.31.11.81.91.91.21
+  31.11.81.91.91.21   11.81.91.91.21
+  62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82
+  62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82
+  62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82
+  62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82
+  62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82
+  12.32.22.42.2.72.12.22.2.72.72.12.62.52.82
+  32.22.42.2.72.12.22.2.72.72.12.62.52.82
+  22.42.2.72.12.22.2.72.72.12.62.52.82   42.2.72.12.22.2.72.72.12.62.52.82
+  2.72.12.22.2.72.72.12.62.52.82   72.12.22.2.72.72.12.62.52.82
+  12.22.2.72.72.12.62.52.82   22.2.72.72.12.62.52.82   2.72.72.12.62.52.82
+  72.72.12.62.52.82   72.12.62.52.82
+  93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  33.53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  53.63.73.13.73.73.33.93.23.13.33.3.33.83
+  63.73.13.73.73.33.93.23.13.33.3.33.83   73.13.73.73.33.93.23.13.33.3.33.83
+  13.73.73.33.93.23.13.33.3.33.83   73.73.33.93.23.13.33.3.33.83
+  73.33.93.23.13.33.3.33.83   33.93.23.13.33.3.33.83   93.23.13.33.3.33.83
+  23.13.33.3.33.83   13.33.3.33.83
+  54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34
+  54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34
+  54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34
+  54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34
+  54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34
+  84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34
+  74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34
+  24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34
+  4.94.84.74.34.34.44.74.64.14.34.84.84.44.34
+  94.84.74.34.34.44.74.64.14.34.84.84.44.34
+  84.74.34.34.44.74.64.14.34.84.84.44.34
+  74.34.34.44.74.64.14.34.84.84.44.34   34.34.44.74.64.14.34.84.84.44.34
+  34.44.74.64.14.34.84.84.44.34   44.74.64.14.34.84.84.44.34
+  74.64.14.34.84.84.44.34   64.14.34.84.84.44.34   14.34.84.84.44.34
+  34.84.84.44.34
+  65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  75.95.65.65.35.5.15.95.55.75.85.75.15.95
+  95.65.65.35.5.15.95.55.75.85.75.15.95   65.65.35.5.15.95.55.75.85.75.15.95
+  65.35.5.15.95.55.75.85.75.15.95   35.5.15.95.55.75.85.75.15.95
+  5.15.95.55.75.85.75.15.95   15.95.55.75.85.75.15.95   95.55.75.85.75.15.95
+  55.75.85.75.15.95   75.85.75.15.95
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  56.56.16.36.76.96.96.26.26.36.66.36.36
+  56.16.36.76.96.96.26.26.36.66.36.36   16.36.76.96.96.26.26.36.66.36.36
+  36.76.96.96.26.26.36.66.36.36   76.96.96.26.26.36.66.36.36
+  96.96.26.26.36.66.36.36   96.26.26.36.66.36.36   26.26.36.66.36.36
+  26.36.66.36.36   97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  47.87.37.87.77.7.57.47.47.37.27.17.7   87.37.87.77.7.57.47.47.37.27.17.7
+  37.87.77.7.57.47.47.37.27.17.7   87.77.7.57.47.47.37.27.17.7
+  77.7.57.47.47.37.27.17.7   7.57.47.47.37.27.17.7   57.47.47.37.27.17.7
+  47.47.37.27.17.7   47.37.27.17.7
+  38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38
+  38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38
+  38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38
+  38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38
+  38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38
+  68.78.8.28.98.78.58.98.8.88.8.58.58.58.38
+  78.8.28.98.78.58.98.8.88.8.58.58.58.38
+  8.28.98.78.58.98.8.88.8.58.58.58.38   28.98.78.58.98.8.88.8.58.58.58.38
+  98.78.58.98.8.88.8.58.58.58.38   78.58.98.8.88.8.58.58.58.38
+  58.98.8.88.8.58.58.58.38   98.8.88.8.58.58.58.38   8.88.8.58.58.58.38
+  88.8.58.58.58.38   8.58.58.58.38
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  9.79.49.59.29.59.19.39.9.9.99.69.39   79.49.59.29.59.19.39.9.9.99.69.39
+  49.59.29.59.19.39.9.9.99.69.39   59.29.59.19.39.9.9.99.69.39
+  29.59.19.39.9.9.99.69.39   59.19.39.9.9.99.69.39   19.39.9.9.99.69.39
+  39.9.9.99.69.39   9.9.99.69.39}
+
+do_execsql_test 1.19.14.3 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2
+} {1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
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+  86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  94.95.95.95.96.96.96.97.97.98.98.99.99
+  95.95.95.96.96.96.97.97.98.98.99.99   95.95.96.96.96.97.97.98.98.99.99
+  95.96.96.96.97.97.98.98.99.99   96.96.96.97.97.98.98.99.99
+  96.96.97.97.98.98.99.99   96.97.97.98.98.99.99   97.97.98.98.99.99
+  97.98.98.99.99}
+
+do_execsql_test 1.19.14.4 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2
+} {10.20.30.30.30.40.50.60.70.80.80.90.90.90
+  10.20.30.30.30.40.50.60.70.80.80.90.90.90
+  10.20.30.30.30.40.50.60.70.80.80.90.90.90
+  10.20.30.30.30.40.50.60.70.80.80.90.90.90
+  10.20.30.30.30.40.50.60.70.80.80.90.90.90
+  20.30.30.30.40.50.60.70.80.80.90.90.90
+  30.30.30.40.50.60.70.80.80.90.90.90   30.30.40.50.60.70.80.80.90.90.90
+  30.40.50.60.70.80.80.90.90.90   40.50.60.70.80.80.90.90.90
+  50.60.70.80.80.90.90.90   60.70.80.80.90.90.90   70.80.80.90.90.90
+  80.80.90.90.90
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  1.1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  41.41.51.61.61.81.81.81.91.91.91.91.91
+  41.51.61.61.81.81.81.91.91.91.91.91   51.61.61.81.81.81.91.91.91.91.91
+  61.61.81.81.81.91.91.91.91.91   61.81.81.81.91.91.91.91.91
+  81.81.81.91.91.91.91.91   81.81.91.91.91.91.91   81.91.91.91.91.91
+  91.91.91.91.91   2.2.12.12.12.22.22.32.42.52.62.62.72.72.72.82
+  2.2.12.12.12.22.22.32.42.52.62.62.72.72.72.82
+  2.2.12.12.12.22.22.32.42.52.62.62.72.72.72.82
+  2.2.12.12.12.22.22.32.42.52.62.62.72.72.72.82
+  2.2.12.12.12.22.22.32.42.52.62.62.72.72.72.82
+  2.12.12.12.22.22.32.42.52.62.62.72.72.72.82
+  12.12.12.22.22.32.42.52.62.62.72.72.72.82
+  12.12.22.22.32.42.52.62.62.72.72.72.82
+  12.22.22.32.42.52.62.62.72.72.72.82   22.22.32.42.52.62.62.72.72.72.82
+  22.32.42.52.62.62.72.72.72.82   32.42.52.62.62.72.72.72.82
+  42.52.62.62.72.72.72.82   52.62.62.72.72.72.82   62.62.72.72.72.82
+  62.72.72.72.82
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  3.3.13.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  3.13.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  13.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  33.33.43.43.53.63.73.73.73.83.93.93.93
+  33.43.43.53.63.73.73.73.83.93.93.93   43.43.53.63.73.73.73.83.93.93.93
+  43.53.63.73.73.73.83.93.93.93   53.63.73.73.73.83.93.93.93
+  63.73.73.73.83.93.93.93   73.73.73.83.93.93.93   73.73.83.93.93.93
+  73.83.93.93.93   4.14.24.34.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  4.14.24.34.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  4.14.24.34.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  4.14.24.34.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  4.14.24.34.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  14.24.34.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  24.34.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  34.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  34.44.44.54.64.74.74.74.84.84.84.84.94
+  44.44.54.64.74.74.74.84.84.84.84.94   44.54.64.74.74.74.84.84.84.84.94
+  54.64.74.74.74.84.84.84.84.94   64.74.74.74.84.84.84.84.94
+  74.74.74.84.84.84.84.94   74.74.84.84.84.84.94   74.84.84.84.84.94
+  84.84.84.84.94
+  5.15.15.15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  5.15.15.15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  5.15.15.15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  5.15.15.15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  5.15.15.15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  15.15.15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  15.15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  55.65.65.65.75.75.75.85.85.85.95.95.95
+  65.65.65.75.75.75.85.85.85.95.95.95   65.65.75.75.75.85.85.85.95.95.95
+  65.75.75.75.85.85.85.95.95.95   75.75.75.85.85.85.95.95.95
+  75.75.85.85.85.95.95.95   75.85.85.85.95.95.95   85.85.85.95.95.95
+  85.85.95.95.95
+  6.16.16.16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  6.16.16.16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  6.16.16.16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  6.16.16.16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  6.16.16.16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  16.16.16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  16.16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  36.36.46.46.56.56.56.66.76.86.96.96.96
+  36.46.46.56.56.56.66.76.86.96.96.96   46.46.56.56.56.66.76.86.96.96.96
+  46.56.56.56.66.76.86.96.96.96   56.56.56.66.76.86.96.96.96
+  56.56.66.76.86.96.96.96   56.66.76.86.96.96.96   66.76.86.96.96.96
+  76.86.96.96.96   7.7.7.17.27.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  7.7.7.17.27.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  7.7.7.17.27.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  7.7.7.17.27.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  7.7.7.17.27.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  7.7.17.27.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  7.17.27.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  17.27.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  27.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  37.47.47.47.47.57.67.77.77.87.87.97.97
+  47.47.47.47.57.67.77.77.87.87.97.97   47.47.47.57.67.77.77.87.87.97.97
+  47.47.57.67.77.77.87.87.97.97   47.57.67.77.77.87.87.97.97
+  57.67.77.77.87.87.97.97   67.77.77.87.87.97.97   77.77.87.87.97.97
+  77.87.87.97.97   8.8.8.28.38.38.58.58.58.58.68.78.78.88.98.98
+  8.8.8.28.38.38.58.58.58.58.68.78.78.88.98.98
+  8.8.8.28.38.38.58.58.58.58.68.78.78.88.98.98
+  8.8.8.28.38.38.58.58.58.58.68.78.78.88.98.98
+  8.8.8.28.38.38.58.58.58.58.68.78.78.88.98.98
+  8.8.28.38.38.58.58.58.58.68.78.78.88.98.98
+  8.28.38.38.58.58.58.58.68.78.78.88.98.98
+  28.38.38.58.58.58.58.68.78.78.88.98.98
+  38.38.58.58.58.58.68.78.78.88.98.98   38.58.58.58.58.68.78.78.88.98.98
+  58.58.58.58.68.78.78.88.98.98   58.58.58.68.78.78.88.98.98
+  58.58.68.78.78.88.98.98   58.68.78.78.88.98.98   68.78.78.88.98.98
+  78.78.88.98.98
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  9.9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  39.49.59.59.59.59.69.79.89.89.89.99.99
+  49.59.59.59.59.69.79.89.89.89.99.99   59.59.59.59.69.79.89.89.89.99.99
+  59.59.59.69.79.89.89.89.99.99   59.59.69.79.89.89.89.99.99
+  59.69.79.89.89.89.99.99   69.79.89.89.89.99.99   79.89.89.89.99.99
+  89.89.89.99.99}
+
+do_execsql_test 1.19.14.5 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES ) FROM t2
+} {90.40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
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+  39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  9.79.49.59.29.59.19.39.9.9.99.69.39   79.49.59.29.59.19.39.9.9.99.69.39
+  49.59.29.59.19.39.9.9.99.69.39   59.29.59.19.39.9.9.99.69.39
+  29.59.19.39.9.9.99.69.39   59.19.39.9.9.99.69.39   19.39.9.9.99.69.39
+  39.9.9.99.69.39   9.9.99.69.39}
+
+do_execsql_test 1.19.14.6 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES) FROM t2
+} {96   38   68   62   46   6   46   78   54   8   84   16   16   86   74   24
+  12   32   56   22   90   28   56   40   56   16   36   98   76   4   94
+  42   30   78   2   80   84   72   58   96   98   74   12   8   20   22   88
+  34   8   34   90   96   60   44   2   74   70   26   26   80   90   36   58
+  72   72   66   64   12   14   62   36   34   36   58   52   30   50   84
+  10   84   44   58   30   38   34   82   89   81   59   39   91   99   97
+  27   97   67   29   93   77   23   93   65   35   47   7   61   91   85
+  85   43   59   3   91   55   15   89   25   47   1   43   75   89   81   33
+  29   53   63   87   37   41   9   61   73   95   65   13   1   21   65   35
+  5   73   11   51   87   41   31   31   15   95   73   79   11   49   59
+  55   75   77   7   85   57   29   59   19   39   47   47   9   33   93   75
+  81   9   23   37   13   91   91   33   15   99   3   95   69   33   21   39
+  83   27   17   7}
+
+do_execsql_test 1.19.14.7 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (win1 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES) 
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a)
+    ORDER BY 1
+} {1   1   10   11   11   12   12   12   13   13   14   15   15   15   16   16
+  16   17   19   2   2   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   3   3   30   30   30   31   31   32   33   33
+  33   33   34   34   34   34   35   35   36   36   36   36   37   37   38
+  38   39   39   39   4   40   41   41   42   43   43   44   44   46   46
+  47   47   47   47   49   5   50   51   52   53   54   55   55   56   56
+  56   57   58   58   58   58   59   59   59   59   6   60   61   61   62
+  62   63   64   65   65   65   66   67   68   69   7   7   7   70   72   72
+  72   73   73   73   74   74   74   75   75   75   76   77   77   78   78
+  79   8   8   8   80   80   81   81   81   82   83   84   84   84   84   85
+  85   85   86   87   87   88   89   89   89   9   9   9   90   90   90   91
+  91   91   91   91   93   93   93   94   95   95   95   96   96   96   97
+  97   98   98   99   99}
+
+do_execsql_test 1.19.14.8 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (win1 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES) 
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a ORDER BY b%10)
+    ORDER BY 1
+} {1   1   10   11   11   12   12   12   13   13   14   15   15   15   16   16
+  16   17   19   2   2   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   3   3   30   30   30   31   31   32   33   33
+  33   33   34   34   34   34   35   35   36   36   36   36   37   37   38
+  38   39   39   39   4   40   41   41   42   43   43   44   44   46   46
+  47   47   47   47   49   5   50   51   52   53   54   55   55   56   56
+  56   57   58   58   58   58   59   59   59   59   6   60   61   61   62
+  62   63   64   65   65   65   66   67   68   69   7   7   7   70   72   72
+  72   73   73   73   74   74   74   75   75   75   76   77   77   78   78
+  79   8   8   8   80   80   81   81   81   82   83   84   84   84   84   85
+  85   85   86   87   87   88   89   89   89   9   9   9   90   90   90   91
+  91   91   91   91   93   93   93   94   95   95   95   96   96   96   97
+  97   98   98   99   99}
+
+do_execsql_test 1.19.14.9 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER win2
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a ORDER BY b%10),
+           win2 AS (win1 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES)
+    ORDER BY 1
+} {1   1   10   11   11   12   12   12   13   13   14   15   15   15   16   16
+  16   17   19   2   2   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   3   3   30   30   30   31   31   32   33   33
+  33   33   34   34   34   34   35   35   36   36   36   36   37   37   38
+  38   39   39   39   4   40   41   41   42   43   43   44   44   46   46
+  47   47   47   47   49   5   50   51   52   53   54   55   55   56   56
+  56   57   58   58   58   58   59   59   59   59   6   60   61   61   62
+  62   63   64   65   65   65   66   67   68   69   7   7   7   70   72   72
+  72   73   73   73   74   74   74   75   75   75   76   77   77   78   78
+  79   8   8   8   80   80   81   81   81   82   83   84   84   84   84   85
+  85   85   86   87   87   88   89   89   89   9   9   9   90   90   90   91
+  91   91   91   91   93   93   93   94   95   95   95   96   96   96   97
+  97   98   98   99   99}
+
+do_execsql_test 1.19.15.1 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE a%2=0) OVER win FROM t2
+    WINDOW win AS (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES)
+} {191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  191 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  190 96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  189 96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  188 38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  187 38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  186 39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  185 39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  184 91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  183 91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  182 6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  181 6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  180 97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  179 97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  178 46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  177 46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  176 54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  175 54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  174 8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  173 8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  172 29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  171 29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  170 84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  169 84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  168 23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  167 23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  166 16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
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+  107 73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  106 65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  105 65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  104 58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  103 58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  102 98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  101 98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  100 21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  99 21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  98 65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  97 65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  96 5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  95 5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  94 11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  93 11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  92 87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  91 87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  90 12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  89 12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  88 20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  87 20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  86 31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  85 31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  84 95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  83 95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  82 73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  81 73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  80 88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  79 88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  78 8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  77 8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  76 49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  75 49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  74 90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  73 90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  72 96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  71 96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  70 55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  69 55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  68 77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  67 77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  66 2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  65 2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  64 85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  63 85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  62 74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  61 74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  60 70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  59 70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  58 19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  57 19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  56 26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  55 26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  54 47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  53 47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  52 90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  51 90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  50 58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  49 58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  48 9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  47 9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  46 72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  45 72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  44 33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  43 33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  42 75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  41 75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  40 81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  39 81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  38 23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  37 23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  36 13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  35 13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  34 14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  33 14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  32 91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  31 91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  30 91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  29 91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  28 15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  27 15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  26 36.3.69.52.50.10.33.39.58.38.83.82.7
+  25 36.3.69.52.50.10.33.39.58.38.83.82.7
+  24 3.69.52.50.10.33.39.58.38.83.82.7   23 3.69.52.50.10.33.39.58.38.83.82.7
+  22 69.52.50.10.33.39.58.38.83.82.7   21 69.52.50.10.33.39.58.38.83.82.7
+  20 52.50.10.33.39.58.38.83.82.7   19 52.50.10.33.39.58.38.83.82.7
+  18 50.10.33.39.58.38.83.82.7   17 50.10.33.39.58.38.83.82.7
+  16 10.33.39.58.38.83.82.7   15 10.33.39.58.38.83.82.7
+  14 33.39.58.38.83.82.7   13 33.39.58.38.83.82.7   12 39.58.38.83.82.7
+  11 39.58.38.83.82.7   10 58.38.83.82.7   9 58.38.83.82.7   8 38.83.82.7
+  7 38.83.82.7   6 83.82.7   5 83.82.7}
+
+do_execsql_test 1.19.15.2 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE 0=1) OVER win FROM t2
+    WINDOW win AS (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES)
+} {191 {}   191 {}   191 {}   191 {}   191 {}   190 {}   189 {}   188 {}
+  187 {}   186 {}   185 {}   184 {}   183 {}   182 {}   181 {}   180 {}
+  179 {}   178 {}   177 {}   176 {}   175 {}   174 {}   173 {}   172 {}
+  171 {}   170 {}   169 {}   168 {}   167 {}   166 {}   165 {}   164 {}
+  163 {}   162 {}   161 {}   160 {}   159 {}   158 {}   157 {}   156 {}
+  155 {}   154 {}   153 {}   152 {}   151 {}   150 {}   149 {}   148 {}
+  147 {}   146 {}   145 {}   144 {}   143 {}   142 {}   141 {}   140 {}
+  139 {}   138 {}   137 {}   136 {}   135 {}   134 {}   133 {}   132 {}
+  131 {}   130 {}   129 {}   128 {}   127 {}   126 {}   125 {}   124 {}
+  123 {}   122 {}   121 {}   120 {}   119 {}   118 {}   117 {}   116 {}
+  115 {}   114 {}   113 {}   112 {}   111 {}   110 {}   109 {}   108 {}
+  107 {}   106 {}   105 {}   104 {}   103 {}   102 {}   101 {}   100 {}
+  99 {}   98 {}   97 {}   96 {}   95 {}   94 {}   93 {}   92 {}   91 {}
+  90 {}   89 {}   88 {}   87 {}   86 {}   85 {}   84 {}   83 {}   82 {}
+  81 {}   80 {}   79 {}   78 {}   77 {}   76 {}   75 {}   74 {}   73 {}
+  72 {}   71 {}   70 {}   69 {}   68 {}   67 {}   66 {}   65 {}   64 {}
+  63 {}   62 {}   61 {}   60 {}   59 {}   58 {}   57 {}   56 {}   55 {}
+  54 {}   53 {}   52 {}   51 {}   50 {}   49 {}   48 {}   47 {}   46 {}
+  45 {}   44 {}   43 {}   42 {}   41 {}   40 {}   39 {}   38 {}   37 {}
+  36 {}   35 {}   34 {}   33 {}   32 {}   31 {}   30 {}   29 {}   28 {}
+  27 {}   26 {}   25 {}   24 {}   23 {}   22 {}   21 {}   20 {}   19 {}
+  18 {}   17 {}   16 {}   15 {}   14 {}   13 {}   12 {}   11 {}   10 {}
+  9 {}   8 {}   7 {}   6 {}   5 {}}
+
+do_execsql_test 1.19.15.3 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE 1=0) OVER win FROM t2
+    WINDOW win AS (PARTITION BY (a%10) ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES)
+} {20 {}   20 {}   20 {}   20 {}   20 {}   19 {}   18 {}   17 {}   16 {}
+  15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}
+  5 {}   19 {}   19 {}   19 {}   19 {}   19 {}   18 {}   17 {}   16 {}
+  15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}
+  5 {}   19 {}   19 {}   19 {}   19 {}   19 {}   18 {}   17 {}   16 {}
+  15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}
+  5 {}   19 {}   19 {}   19 {}   19 {}   19 {}   18 {}   17 {}   16 {}
+  15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}
+  5 {}   19 {}   19 {}   19 {}   19 {}   19 {}   18 {}   17 {}   16 {}
+  15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}
+  5 {}   19 {}   19 {}   19 {}   19 {}   19 {}   18 {}   17 {}   16 {}
+  15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}
+  5 {}   19 {}   19 {}   19 {}   19 {}   19 {}   18 {}   17 {}   16 {}
+  15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}
+  5 {}   19 {}   19 {}   19 {}   19 {}   19 {}   18 {}   17 {}   16 {}
+  15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}
+  5 {}   19 {}   19 {}   19 {}   19 {}   19 {}   18 {}   17 {}   16 {}
+  15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}
+  5 {}   19 {}   19 {}   19 {}   19 {}   19 {}   18 {}   17 {}   16 {}
+  15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}
+  5 {}}
+
+do_execsql_test 1.19.15.4 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE a%2=0) OVER win FROM t2
+    WINDOW win AS (PARTITION BY (a%10) ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE TIES)
+} {20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  20 89.6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  19 6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  18 29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  17 47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  16 59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  15 28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  14 75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  13 78.72.98.87.73.96.74.90.75.91.69.39.7
+  12 72.98.87.73.96.74.90.75.91.69.39.7   11 98.87.73.96.74.90.75.91.69.39.7
+  10 87.73.96.74.90.75.91.69.39.7   9 73.96.74.90.75.91.69.39.7
+  8 96.74.90.75.91.69.39.7   7 74.90.75.91.69.39.7   6 90.75.91.69.39.7
+  5 75.91.69.39.7   19 {}   19 {}   19 {}   19 {}   19 {}   18 {}   17 {}
+  16 {}   15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}
+  6 {}   5 {}   19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  19 96.97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  18 97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  17 84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  16 86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  15 32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  14 25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  13 89.29.9.21.12.88.55.70.58.81.91.52.58
+  12 29.9.21.12.88.55.70.58.81.91.52.58   11 9.21.12.88.55.70.58.81.91.52.58
+  10 21.12.88.55.70.58.81.91.52.58   9 12.88.55.70.58.81.91.52.58
+  8 88.55.70.58.81.91.52.58   7 55.70.58.81.91.52.58   6 70.58.81.91.52.58
+  5 58.81.91.52.58   19 {}   19 {}   19 {}   19 {}   19 {}   18 {}   17 {}
+  16 {}   15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}
+  6 {}   5 {}   19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  19 38.46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  18 46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  17 23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  16 61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  15 3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  14 1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  13 76.63.73.65.20.8.77.19.9.23.15.50.38
+  12 63.73.65.20.8.77.19.9.23.15.50.38   11 73.65.20.8.77.19.9.23.15.50.38
+  10 65.20.8.77.19.9.23.15.50.38   9 20.8.77.19.9.23.15.50.38
+  8 8.77.19.9.23.15.50.38   7 77.19.9.23.15.50.38   6 19.9.23.15.50.38
+  5 9.23.15.50.38   19 {}   19 {}   19 {}   19 {}   19 {}   18 {}   17 {}
+  16 {}   15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}
+  6 {}   5 {}   19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  19 39.54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  18 54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  17 16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  16 85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  15 22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  14 40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  13 4.87.65.5.31.49.2.26.72.13.36.10.83
+  12 87.65.5.31.49.2.26.72.13.36.10.83   11 65.5.31.49.2.26.72.13.36.10.83
+  10 5.31.49.2.26.72.13.36.10.83   9 31.49.2.26.72.13.36.10.83
+  8 49.2.26.72.13.36.10.83   7 2.26.72.13.36.10.83   6 26.72.13.36.10.83
+  5 72.13.36.10.83   19 {}   19 {}   19 {}   19 {}   19 {}   18 {}   17 {}
+  16 {}   15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}
+  6 {}   5 {}   19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  19 91.8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  18 8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  17 65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  16 85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  15 55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  14 56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  13 42.80.58.11.95.90.85.47.33.14.3.33.82
+  12 80.58.11.95.90.85.47.33.14.3.33.82   11 58.11.95.90.85.47.33.14.3.33.82
+  10 11.95.90.85.47.33.14.3.33.82   9 95.90.85.47.33.14.3.33.82
+  8 90.85.47.33.14.3.33.82   7 85.47.33.14.3.33.82   6 47.33.14.3.33.82
+  5 33.14.3.33.82   19 {}   19 {}   19 {}   19 {}   19 {}   18 {}   17 {}
+  16 {}   15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}
+  6 {}   5 {}}
+
+do_execsql_test 1.20.2.1 {
+  SELECT max(b) OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2
+} {99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   99   99   99   99   99   99   99   99   99   99   99   99   99
+  99   99   95   99   99   99   99   95   95   84   84   84   84   84   84
+  84   84   83   83   83   83   82   83   83   83   83}
+
+do_execsql_test 1.20.2.2 {
+  SELECT min(b) OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   2   1   1   1
+  1   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   3   2   2   2   2   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   7   3   3
+  3   3   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7
+  17}
+
+do_execsql_test 1.20.3.1 {
+  SELECT row_number() OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.20.3.2 {
+  SELECT row_number() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.20.3.3 {
+  SELECT row_number() OVER ( ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.20.4.1 {
+  SELECT dense_rank() OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.20.4.2 {
+  SELECT dense_rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.20.4.3 {
+  SELECT dense_rank() OVER ( ORDER BY b ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2
+} {1   1   2   2   3   3   4   5   6   7   7   7   8   8   8   9   9   9   10
+  11   11   12   12   12   13   13   14   15   15   15   16   16   16   17
+  18   19   20   20   21   21   22   22   23   24   25   25   26   26   27
+  28   28   28   29   29   29   30   30   31   32   32   32   32   33   33
+  33   33   34   34   35   35   35   35   36   36   37   37   38   38   38
+  39   40   40   41   42   42   43   43   44   44   45   45   45   45   46
+  47   48   49   50   51   52   52   53   53   53   54   55   55   55   55
+  56   56   56   56   57   58   58   59   59   60   61   62   62   62   63
+  64   65   66   67   68   68   68   69   69   69   70   70   70   71   71
+  71   72   73   73   74   74   75   76   76   77   77   77   78   79   80
+  80   80   80   81   81   81   82   83   83   84   85   85   85   86   86
+  86   87   87   87   87   87   88   88   88   89   90   90   90   91   91
+  91   92   92   93   93   94   94}
+
+do_execsql_test 1.20.4.4 {
+  SELECT dense_rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2
+} {1   2   3   3   3   4   5   6   7   8   8   9   9   9   1   1   2   2   3
+  3   4   4   5   5   6   7   7   8   8   8   9   9   9   9   9   1   1   2
+  2   2   3   3   4   5   6   7   7   8   8   8   9   1   1   2   2   3   3
+  4   4   4   4   5   5   6   7   8   8   8   9   10   10   10   1   2   3
+  4   4   4   4   5   5   6   7   8   8   8   9   9   9   9   10   1   2   2
+  2   3   4   4   5   5   6   6   6   7   7   7   8   8   8   9   9   9   1
+  2   2   2   3   3   4   4   4   4   5   5   6   6   6   7   8   9   10   10
+  10   1   1   1   2   3   3   4   4   5   5   5   5   6   7   8   8   9   9
+  10   10   1   1   1   2   3   3   4   4   4   4   5   6   6   7   8   8   1
+  1   1   2   3   3   3   4   4   4   5   6   6   6   6   7   8   9   9   9
+  10   10}
+
+do_execsql_test 1.20.4.5 {
+  SELECT dense_rank() OVER ( ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   4   4   4   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5   5   5   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   6   6   6   6
+  6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   6   7   7
+  7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7   7
+  8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8   8
+  8   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   9   10   10
+  10   10   10   10   10   10   10   10   10   10   10   10   10   10   10
+  10   10   10   10   10}
+
+do_execsql_test 1.20.4.6 {
+  SELECT dense_rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   3   3   3   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   4   4   4   4   4   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   5   5   5   5   5   5
+  5   5   5   5   5   5   5   5   5   5   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   2   2   2   2   2   2   2
+  2   2   2   2   2   2   2   2   2   2   2   2   2   2   3   3   3   3   3
+  3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   3   4   4   4
+  4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   4   5   5
+  5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5   5
+  5}
+
+do_execsql_test 1.20.5.1 {
+  SELECT rank() OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80   81   82   83   84   85   86   87   88   89   90   91   92
+  93   94   95   96   97   98   99   100   101   102   103   104   105   106
+  107   108   109   110   111   112   113   114   115   116   117   118   119
+  120   121   122   123   124   125   126   127   128   129   130   131   132
+  133   134   135   136   137   138   139   140   141   142   143   144   145
+  146   147   148   149   150   151   152   153   154   155   156   157   158
+  159   160   161   162   163   164   165   166   167   168   169   170   171
+  172   173   174   175   176   177   178   179   180   181   182   183   184
+  185   186   187   188   189   190   191}
+
+do_execsql_test 1.20.5.2 {
+  SELECT rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   1   2   3   4
+  5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20
+  21   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   1   2   3   4   5   6   7   8   9   10   11   12   13
+  14   15   16   17   18   19   1   2   3   4   5   6   7   8   9   10   11
+  12   13   14   15   16   17   18   19   20   21   1   2   3   4   5   6   7
+  8   9   10   11   12   13   14   15   16   17   18   19   20   21   1   2
+  3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19
+  20   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16
+  1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22}
+
+do_execsql_test 1.20.5.3 {
+  SELECT rank() OVER ( ORDER BY b ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2
+} {1   1   3   3   5   5   7   8   9   10   10   10   13   13   13   16   16
+  16   19   20   20   22   22   22   25   25   27   28   28   28   31   31
+  31   34   35   36   37   37   39   39   41   41   43   44   45   45   47
+  47   49   50   50   50   53   53   53   56   56   58   59   59   59   59
+  63   63   63   63   67   67   69   69   69   69   73   73   75   75   77
+  77   77   80   81   81   83   84   84   86   86   88   88   90   90   90
+  90   94   95   96   97   98   99   100   100   102   102   102   105   106
+  106   106   106   110   110   110   110   114   115   115   117   117   119
+  120   121   121   121   124   125   126   127   128   129   129   129   132
+  132   132   135   135   135   138   138   138   141   142   142   144   144
+  146   147   147   149   149   149   152   153   154   154   154   154   158
+  158   158   161   162   162   164   165   165   165   168   168   168   171
+  171   171   171   171   176   176   176   179   180   180   180   183   183
+  183   186   186   188   188   190   190}
+
+do_execsql_test 1.20.5.4 {
+  SELECT rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2
+} {1   2   3   3   3   6   7   8   9   10   10   12   12   12   1   1   3   3
+  5   5   7   7   9   9   11   12   12   14   14   14   17   17   17   17
+  17   1   1   3   3   3   6   6   8   9   10   11   11   13   13   13   16
+  1   1   3   3   5   5   7   7   7   7   11   11   13   14   15   15   15
+  18   19   19   19   1   2   3   4   4   4   4   8   8   10   11   12   12
+  12   15   15   15   15   19   1   2   2   2   5   6   6   8   8   10   10
+  10   13   13   13   16   16   16   19   19   19   1   2   2   2   5   5   7
+  7   7   7   11   11   13   13   13   16   17   18   19   19   19   1   1
+  1   4   5   5   7   7   9   9   9   9   13   14   15   15   17   17   19
+  19   1   1   1   4   5   5   7   7   7   7   11   12   12   14   15   15
+  1   1   1   4   5   5   5   8   8   8   11   12   12   12   12   16   17
+  18   18   18   21   21}
+
+do_execsql_test 1.20.5.5 {
+  SELECT rank() OVER ( ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   15   15   15   15
+  15   15   15   15   15   15   15   15   15   15   15   15   15   15   15
+  15   15   36   36   36   36   36   36   36   36   36   36   36   36   36
+  36   36   36   52   52   52   52   52   52   52   52   52   52   52   52
+  52   52   52   52   52   52   52   52   52   73   73   73   73   73   73
+  73   73   73   73   73   73   73   73   73   73   73   73   73   92   92
+  92   92   92   92   92   92   92   92   92   92   92   92   92   92   92
+  92   92   92   92   113   113   113   113   113   113   113   113   113
+  113   113   113   113   113   113   113   113   113   113   113   113   134
+  134   134   134   134   134   134   134   134   134   134   134   134   134
+  134   134   134   134   134   134   154   154   154   154   154   154   154
+  154   154   154   154   154   154   154   154   154   170   170   170   170
+  170   170   170   170   170   170   170   170   170   170   170   170   170
+  170   170   170   170   170}
+
+do_execsql_test 1.20.5.6 {
+  SELECT rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2
+} {1   1   1   1   1   1   1   1   1   1   1   1   1   1   15   15   15   15
+  15   15   15   15   15   15   15   15   15   15   15   15   31   31   31
+  31   31   31   31   31   31   31   31   31   31   31   31   31   31   31
+  31   50   50   50   50   50   50   50   50   50   50   50   50   50   50
+  50   50   50   50   50   50   50   71   71   71   71   71   71   71   71
+  71   71   71   71   71   71   71   71   1   1   1   1   1   1   1   1   1
+  1   1   1   1   1   1   1   1   1   1   1   1   22   22   22   22   22   22
+  22   22   22   22   22   22   22   22   22   22   22   22   22   22   22
+  43   43   43   43   43   43   43   43   43   43   43   43   43   43   43
+  43   43   43   43   43   43   64   64   64   64   64   64   64   64   64
+  64   64   64   64   64   64   64   64   64   64   64   84   84   84   84
+  84   84   84   84   84   84   84   84   84   84   84   84   84   84   84
+  84   84   84}
+
+do_execsql_test 1.20.6.1 {
+  SELECT 
+      row_number() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ),
+      rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ),
+      dense_rank() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP )
+    FROM t2
+} {1 1 1   2 1 1   3 1 1   4 1 1   5 1 1   6 1 1   7 1 1   8 1 1   9 1 1
+  10 1 1   11 1 1   12 1 1   13 1 1   14 1 1   15 15 2   16 15 2   17 15 2
+  18 15 2   19 15 2   20 15 2   21 15 2   22 15 2   23 15 2   24 15 2
+  25 15 2   26 15 2   27 15 2   28 15 2   29 15 2   30 15 2   31 31 3
+  32 31 3   33 31 3   34 31 3   35 31 3   36 31 3   37 31 3   38 31 3
+  39 31 3   40 31 3   41 31 3   42 31 3   43 31 3   44 31 3   45 31 3
+  46 31 3   47 31 3   48 31 3   49 31 3   50 50 4   51 50 4   52 50 4
+  53 50 4   54 50 4   55 50 4   56 50 4   57 50 4   58 50 4   59 50 4
+  60 50 4   61 50 4   62 50 4   63 50 4   64 50 4   65 50 4   66 50 4
+  67 50 4   68 50 4   69 50 4   70 50 4   71 71 5   72 71 5   73 71 5
+  74 71 5   75 71 5   76 71 5   77 71 5   78 71 5   79 71 5   80 71 5
+  81 71 5   82 71 5   83 71 5   84 71 5   85 71 5   86 71 5   1 1 1   2 1 1
+  3 1 1   4 1 1   5 1 1   6 1 1   7 1 1   8 1 1   9 1 1   10 1 1   11 1 1
+  12 1 1   13 1 1   14 1 1   15 1 1   16 1 1   17 1 1   18 1 1   19 1 1
+  20 1 1   21 1 1   22 22 2   23 22 2   24 22 2   25 22 2   26 22 2   27 22 2
+  28 22 2   29 22 2   30 22 2   31 22 2   32 22 2   33 22 2   34 22 2
+  35 22 2   36 22 2   37 22 2   38 22 2   39 22 2   40 22 2   41 22 2
+  42 22 2   43 43 3   44 43 3   45 43 3   46 43 3   47 43 3   48 43 3
+  49 43 3   50 43 3   51 43 3   52 43 3   53 43 3   54 43 3   55 43 3
+  56 43 3   57 43 3   58 43 3   59 43 3   60 43 3   61 43 3   62 43 3
+  63 43 3   64 64 4   65 64 4   66 64 4   67 64 4   68 64 4   69 64 4
+  70 64 4   71 64 4   72 64 4   73 64 4   74 64 4   75 64 4   76 64 4
+  77 64 4   78 64 4   79 64 4   80 64 4   81 64 4   82 64 4   83 64 4
+  84 84 5   85 84 5   86 84 5   87 84 5   88 84 5   89 84 5   90 84 5
+  91 84 5   92 84 5   93 84 5   94 84 5   95 84 5   96 84 5   97 84 5
+  98 84 5   99 84 5   100 84 5   101 84 5   102 84 5   103 84 5   104 84 5
+  105 84 5}
+
+
+do_test 1.20.7.1 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0053 0.0105 0.0158 0.0211 0.0263 0.0316 0.0368 0.0421 0.0474 0.0526 0.0579 0.0632 0.0684 0.0737 0.0789 0.0842 0.0895 0.0947 0.1000 0.1053 0.1105 0.1158 0.1211 0.1263 0.1316 0.1368 0.1421 0.1474 0.1526 0.1579 0.1632 0.1684 0.1737 0.1789 0.1842 0.1895 0.1947 0.2000 0.2053 0.2105 0.2158 0.2211 0.2263 0.2316 0.2368 0.2421 0.2474 0.2526 0.2579 0.2632 0.2684 0.2737 0.2789 0.2842 0.2895 0.2947 0.3000 0.3053 0.3105 0.3158 0.3211 0.3263 0.3316 0.3368 0.3421 0.3474 0.3526 0.3579 0.3632 0.3684 0.3737 0.3789 0.3842 0.3895 0.3947 0.4000 0.4053 0.4105 0.4158 0.4211 0.4263 0.4316 0.4368 0.4421 0.4474 0.4526 0.4579 0.4632 0.4684 0.4737 0.4789 0.4842 0.4895 0.4947 0.5000 0.5053 0.5105 0.5158 0.5211 0.5263 0.5316 0.5368 0.5421 0.5474 0.5526 0.5579 0.5632 0.5684 0.5737 0.5789 0.5842 0.5895 0.5947 0.6000 0.6053 0.6105 0.6158 0.6211 0.6263 0.6316 0.6368 0.6421 0.6474 0.6526 0.6579 0.6632 0.6684 0.6737 0.6789 0.6842 0.6895 0.6947 0.7000 0.7053 0.7105 0.7158 0.7211 0.7263 0.7316 0.7368 0.7421 0.7474 0.7526 0.7579 0.7632 0.7684 0.7737 0.7789 0.7842 0.7895 0.7947 0.8000 0.8053 0.8105 0.8158 0.8211 0.8263 0.8316 0.8368 0.8421 0.8474 0.8526 0.8579 0.8632 0.8684 0.8737 0.8789 0.8842 0.8895 0.8947 0.9000 0.9053 0.9105 0.9158 0.9211 0.9263 0.9316 0.9368 0.9421 0.9474 0.9526 0.9579 0.9632 0.9684 0.9737 0.9789 0.9842 0.9895 0.9947 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.20.7.2 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0769 0.1538 0.2308 0.3077 0.3846 0.4615 0.5385 0.6154 0.6923 0.7692 0.8462 0.9231 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0667 0.1333 0.2000 0.2667 0.3333 0.4000 0.4667 0.5333 0.6000 0.6667 0.7333 0.8000 0.8667 0.9333 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0556 0.1111 0.1667 0.2222 0.2778 0.3333 0.3889 0.4444 0.5000 0.5556 0.6111 0.6667 0.7222 0.7778 0.8333 0.8889 0.9444 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0000 0.0526 0.1053 0.1579 0.2105 0.2632 0.3158 0.3684 0.4211 0.4737 0.5263 0.5789 0.6316 0.6842 0.7368 0.7895 0.8421 0.8947 0.9474 1.0000 0.0000 0.0667 0.1333 0.2000 0.2667 0.3333 0.4000 0.4667 0.5333 0.6000 0.6667 0.7333 0.8000 0.8667 0.9333 1.0000 0.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.20.7.3 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY b ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0105 0.0105 0.0211 0.0211 0.0316 0.0368 0.0421 0.0474 0.0474 0.0474 0.0632 0.0632 0.0632 0.0789 0.0789 0.0789 0.0947 0.1000 0.1000 0.1105 0.1105 0.1105 0.1263 0.1263 0.1368 0.1421 0.1421 0.1421 0.1579 0.1579 0.1579 0.1737 0.1789 0.1842 0.1895 0.1895 0.2000 0.2000 0.2105 0.2105 0.2211 0.2263 0.2316 0.2316 0.2421 0.2421 0.2526 0.2579 0.2579 0.2579 0.2737 0.2737 0.2737 0.2895 0.2895 0.3000 0.3053 0.3053 0.3053 0.3053 0.3263 0.3263 0.3263 0.3263 0.3474 0.3474 0.3579 0.3579 0.3579 0.3579 0.3789 0.3789 0.3895 0.3895 0.4000 0.4000 0.4000 0.4158 0.4211 0.4211 0.4316 0.4368 0.4368 0.4474 0.4474 0.4579 0.4579 0.4684 0.4684 0.4684 0.4684 0.4895 0.4947 0.5000 0.5053 0.5105 0.5158 0.5211 0.5211 0.5316 0.5316 0.5316 0.5474 0.5526 0.5526 0.5526 0.5526 0.5737 0.5737 0.5737 0.5737 0.5947 0.6000 0.6000 0.6105 0.6105 0.6211 0.6263 0.6316 0.6316 0.6316 0.6474 0.6526 0.6579 0.6632 0.6684 0.6737 0.6737 0.6737 0.6895 0.6895 0.6895 0.7053 0.7053 0.7053 0.7211 0.7211 0.7211 0.7368 0.7421 0.7421 0.7526 0.7526 0.7632 0.7684 0.7684 0.7789 0.7789 0.7789 0.7947 0.8000 0.8053 0.8053 0.8053 0.8053 0.8263 0.8263 0.8263 0.8421 0.8474 0.8474 0.8579 0.8632 0.8632 0.8632 0.8789 0.8789 0.8789 0.8947 0.8947 0.8947 0.8947 0.8947 0.9211 0.9211 0.9211 0.9368 0.9421 0.9421 0.9421 0.9579 0.9579 0.9579 0.9737 0.9737 0.9842 0.9842 0.9947 0.9947}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.20.7.4 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0769 0.1538 0.1538 0.1538 0.3846 0.4615 0.5385 0.6154 0.6923 0.6923 0.8462 0.8462 0.8462 0.0000 0.0000 0.1000 0.1000 0.2000 0.2000 0.3000 0.3000 0.4000 0.4000 0.5000 0.5500 0.5500 0.6500 0.6500 0.6500 0.8000 0.8000 0.8000 0.8000 0.8000 0.0000 0.0000 0.1333 0.1333 0.1333 0.3333 0.3333 0.4667 0.5333 0.6000 0.6667 0.6667 0.8000 0.8000 0.8000 1.0000 0.0000 0.0000 0.1000 0.1000 0.2000 0.2000 0.3000 0.3000 0.3000 0.3000 0.5000 0.5000 0.6000 0.6500 0.7000 0.7000 0.7000 0.8500 0.9000 0.9000 0.9000 0.0000 0.0556 0.1111 0.1667 0.1667 0.1667 0.1667 0.3889 0.3889 0.5000 0.5556 0.6111 0.6111 0.6111 0.7778 0.7778 0.7778 0.7778 1.0000 0.0000 0.0500 0.0500 0.0500 0.2000 0.2500 0.2500 0.3500 0.3500 0.4500 0.4500 0.4500 0.6000 0.6000 0.6000 0.7500 0.7500 0.7500 0.9000 0.9000 0.9000 0.0000 0.0500 0.0500 0.0500 0.2000 0.2000 0.3000 0.3000 0.3000 0.3000 0.5000 0.5000 0.6000 0.6000 0.6000 0.7500 0.8000 0.8500 0.9000 0.9000 0.9000 0.0000 0.0000 0.0000 0.1579 0.2105 0.2105 0.3158 0.3158 0.4211 0.4211 0.4211 0.4211 0.6316 0.6842 0.7368 0.7368 0.8421 0.8421 0.9474 0.9474 0.0000 0.0000 0.0000 0.2000 0.2667 0.2667 0.4000 0.4000 0.4000 0.4000 0.6667 0.7333 0.7333 0.8667 0.9333 0.9333 0.0000 0.0000 0.0000 0.1429 0.1905 0.1905 0.1905 0.3333 0.3333 0.3333 0.4762 0.5238 0.5238 0.5238 0.5238 0.7143 0.7619 0.8095 0.8095 0.8095 0.9524 0.9524}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.20.7.5 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER ( ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.0737 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.1842 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.2684 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.3789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.4789 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.5895 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.7000 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8053 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895 0.8895}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.20.7.6 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER (PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.1647 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.3529 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.5765 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.8235 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.2019 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.4038 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.6058 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981 0.7981}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.20.8.1 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0052 0.0105 0.0157 0.0209 0.0262 0.0314 0.0366 0.0419 0.0471 0.0524 0.0576 0.0628 0.0681 0.0733 0.0785 0.0838 0.0890 0.0942 0.0995 0.1047 0.1099 0.1152 0.1204 0.1257 0.1309 0.1361 0.1414 0.1466 0.1518 0.1571 0.1623 0.1675 0.1728 0.1780 0.1832 0.1885 0.1937 0.1990 0.2042 0.2094 0.2147 0.2199 0.2251 0.2304 0.2356 0.2408 0.2461 0.2513 0.2565 0.2618 0.2670 0.2723 0.2775 0.2827 0.2880 0.2932 0.2984 0.3037 0.3089 0.3141 0.3194 0.3246 0.3298 0.3351 0.3403 0.3455 0.3508 0.3560 0.3613 0.3665 0.3717 0.3770 0.3822 0.3874 0.3927 0.3979 0.4031 0.4084 0.4136 0.4188 0.4241 0.4293 0.4346 0.4398 0.4450 0.4503 0.4555 0.4607 0.4660 0.4712 0.4764 0.4817 0.4869 0.4921 0.4974 0.5026 0.5079 0.5131 0.5183 0.5236 0.5288 0.5340 0.5393 0.5445 0.5497 0.5550 0.5602 0.5654 0.5707 0.5759 0.5812 0.5864 0.5916 0.5969 0.6021 0.6073 0.6126 0.6178 0.6230 0.6283 0.6335 0.6387 0.6440 0.6492 0.6545 0.6597 0.6649 0.6702 0.6754 0.6806 0.6859 0.6911 0.6963 0.7016 0.7068 0.7120 0.7173 0.7225 0.7277 0.7330 0.7382 0.7435 0.7487 0.7539 0.7592 0.7644 0.7696 0.7749 0.7801 0.7853 0.7906 0.7958 0.8010 0.8063 0.8115 0.8168 0.8220 0.8272 0.8325 0.8377 0.8429 0.8482 0.8534 0.8586 0.8639 0.8691 0.8743 0.8796 0.8848 0.8901 0.8953 0.9005 0.9058 0.9110 0.9162 0.9215 0.9267 0.9319 0.9372 0.9424 0.9476 0.9529 0.9581 0.9634 0.9686 0.9738 0.9791 0.9843 0.9895 0.9948 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.20.8.2 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0714 0.1429 0.2143 0.2857 0.3571 0.4286 0.5000 0.5714 0.6429 0.7143 0.7857 0.8571 0.9286 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0625 0.1250 0.1875 0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250 0.6875 0.7500 0.8125 0.8750 0.9375 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0526 0.1053 0.1579 0.2105 0.2632 0.3158 0.3684 0.4211 0.4737 0.5263 0.5789 0.6316 0.6842 0.7368 0.7895 0.8421 0.8947 0.9474 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0476 0.0952 0.1429 0.1905 0.2381 0.2857 0.3333 0.3810 0.4286 0.4762 0.5238 0.5714 0.6190 0.6667 0.7143 0.7619 0.8095 0.8571 0.9048 0.9524 1.0000 0.0500 0.1000 0.1500 0.2000 0.2500 0.3000 0.3500 0.4000 0.4500 0.5000 0.5500 0.6000 0.6500 0.7000 0.7500 0.8000 0.8500 0.9000 0.9500 1.0000 0.0625 0.1250 0.1875 0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250 0.6875 0.7500 0.8125 0.8750 0.9375 1.0000 0.0455 0.0909 0.1364 0.1818 0.2273 0.2727 0.3182 0.3636 0.4091 0.4545 0.5000 0.5455 0.5909 0.6364 0.6818 0.7273 0.7727 0.8182 0.8636 0.9091 0.9545 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.20.8.3 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY b ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0105 0.0105 0.0209 0.0209 0.0314 0.0314 0.0366 0.0419 0.0471 0.0628 0.0628 0.0628 0.0785 0.0785 0.0785 0.0942 0.0942 0.0942 0.0995 0.1099 0.1099 0.1257 0.1257 0.1257 0.1361 0.1361 0.1414 0.1571 0.1571 0.1571 0.1728 0.1728 0.1728 0.1780 0.1832 0.1885 0.1990 0.1990 0.2094 0.2094 0.2199 0.2199 0.2251 0.2304 0.2408 0.2408 0.2513 0.2513 0.2565 0.2723 0.2723 0.2723 0.2880 0.2880 0.2880 0.2984 0.2984 0.3037 0.3246 0.3246 0.3246 0.3246 0.3455 0.3455 0.3455 0.3455 0.3560 0.3560 0.3770 0.3770 0.3770 0.3770 0.3874 0.3874 0.3979 0.3979 0.4136 0.4136 0.4136 0.4188 0.4293 0.4293 0.4346 0.4450 0.4450 0.4555 0.4555 0.4660 0.4660 0.4869 0.4869 0.4869 0.4869 0.4921 0.4974 0.5026 0.5079 0.5131 0.5183 0.5288 0.5288 0.5445 0.5445 0.5445 0.5497 0.5707 0.5707 0.5707 0.5707 0.5916 0.5916 0.5916 0.5916 0.5969 0.6073 0.6073 0.6178 0.6178 0.6230 0.6283 0.6440 0.6440 0.6440 0.6492 0.6545 0.6597 0.6649 0.6702 0.6859 0.6859 0.6859 0.7016 0.7016 0.7016 0.7173 0.7173 0.7173 0.7330 0.7330 0.7330 0.7382 0.7487 0.7487 0.7592 0.7592 0.7644 0.7749 0.7749 0.7906 0.7906 0.7906 0.7958 0.8010 0.8220 0.8220 0.8220 0.8220 0.8377 0.8377 0.8377 0.8429 0.8534 0.8534 0.8586 0.8743 0.8743 0.8743 0.8901 0.8901 0.8901 0.9162 0.9162 0.9162 0.9162 0.9162 0.9319 0.9319 0.9319 0.9372 0.9529 0.9529 0.9529 0.9686 0.9686 0.9686 0.9791 0.9791 0.9895 0.9895 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.20.8.4 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%10 ORDER BY b ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0714 0.1429 0.3571 0.3571 0.3571 0.4286 0.5000 0.5714 0.6429 0.7857 0.7857 1.0000 1.0000 1.0000 0.0952 0.0952 0.1905 0.1905 0.2857 0.2857 0.3810 0.3810 0.4762 0.4762 0.5238 0.6190 0.6190 0.7619 0.7619 0.7619 1.0000 1.0000 1.0000 1.0000 1.0000 0.1250 0.1250 0.3125 0.3125 0.3125 0.4375 0.4375 0.5000 0.5625 0.6250 0.7500 0.7500 0.9375 0.9375 0.9375 1.0000 0.0952 0.0952 0.1905 0.1905 0.2857 0.2857 0.4762 0.4762 0.4762 0.4762 0.5714 0.5714 0.6190 0.6667 0.8095 0.8095 0.8095 0.8571 1.0000 1.0000 1.0000 0.0526 0.1053 0.1579 0.3684 0.3684 0.3684 0.3684 0.4737 0.4737 0.5263 0.5789 0.7368 0.7368 0.7368 0.9474 0.9474 0.9474 0.9474 1.0000 0.0476 0.1905 0.1905 0.1905 0.2381 0.3333 0.3333 0.4286 0.4286 0.5714 0.5714 0.5714 0.7143 0.7143 0.7143 0.8571 0.8571 0.8571 1.0000 1.0000 1.0000 0.0476 0.1905 0.1905 0.1905 0.2857 0.2857 0.4762 0.4762 0.4762 0.4762 0.5714 0.5714 0.7143 0.7143 0.7143 0.7619 0.8095 0.8571 1.0000 1.0000 1.0000 0.1500 0.1500 0.1500 0.2000 0.3000 0.3000 0.4000 0.4000 0.6000 0.6000 0.6000 0.6000 0.6500 0.7000 0.8000 0.8000 0.9000 0.9000 1.0000 1.0000 0.1875 0.1875 0.1875 0.2500 0.3750 0.3750 0.6250 0.6250 0.6250 0.6250 0.6875 0.8125 0.8125 0.8750 1.0000 1.0000 0.1364 0.1364 0.1364 0.1818 0.3182 0.3182 0.3182 0.4545 0.4545 0.4545 0.5000 0.6818 0.6818 0.6818 0.6818 0.7273 0.7727 0.9091 0.9091 0.9091 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.20.8.5 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.0733 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.1832 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.2670 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.3770 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.4764 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.5864 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.6963 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8010 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 0.8848 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.20.8.6 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER ( PARTITION BY b%2 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.1628 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.3488 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.5698 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 0.8140 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.2000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.4000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.6000 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 0.7905 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.20.8.1 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(100) OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 88.0000 89.0000 89.0000 90.0000 90.0000 91.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.20.8.2 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(101) OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 22.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.20.8.3 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(102) OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 88.0000 89.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.20.8.4 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(103) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000 11.0000 12.0000 13.0000 14.0000 15.0000 16.0000 17.0000 18.0000 19.0000 20.0000 21.0000 22.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.20.8.5 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(104) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 87.0000 88.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000 103.0000 104.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.20.8.6 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(105) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 1.20.8.7 {
+  set myres {}
+  foreach r [db eval {SELECT ntile(105) OVER ( ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 2.0000 2.0000 3.0000 3.0000 4.0000 4.0000 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000 8.0000 8.0000 9.0000 9.0000 10.0000 10.0000 11.0000 11.0000 12.0000 12.0000 13.0000 13.0000 14.0000 14.0000 15.0000 15.0000 16.0000 16.0000 17.0000 17.0000 18.0000 18.0000 19.0000 19.0000 20.0000 20.0000 21.0000 21.0000 22.0000 22.0000 23.0000 23.0000 24.0000 24.0000 25.0000 25.0000 26.0000 26.0000 27.0000 27.0000 28.0000 28.0000 29.0000 29.0000 30.0000 30.0000 31.0000 31.0000 32.0000 32.0000 33.0000 33.0000 34.0000 34.0000 35.0000 35.0000 36.0000 36.0000 37.0000 37.0000 38.0000 38.0000 39.0000 39.0000 40.0000 40.0000 41.0000 41.0000 42.0000 42.0000 43.0000 43.0000 44.0000 44.0000 45.0000 45.0000 46.0000 46.0000 47.0000 47.0000 48.0000 48.0000 49.0000 49.0000 50.0000 50.0000 51.0000 51.0000 52.0000 52.0000 53.0000 53.0000 54.0000 54.0000 55.0000 55.0000 56.0000 56.0000 57.0000 57.0000 58.0000 58.0000 59.0000 59.0000 60.0000 60.0000 61.0000 61.0000 62.0000 62.0000 63.0000 63.0000 64.0000 64.0000 65.0000 65.0000 66.0000 66.0000 67.0000 67.0000 68.0000 68.0000 69.0000 69.0000 70.0000 70.0000 71.0000 71.0000 72.0000 72.0000 73.0000 73.0000 74.0000 74.0000 75.0000 75.0000 76.0000 76.0000 77.0000 77.0000 78.0000 78.0000 79.0000 79.0000 80.0000 80.0000 81.0000 81.0000 82.0000 82.0000 83.0000 83.0000 84.0000 84.0000 85.0000 85.0000 86.0000 86.0000 87.0000 88.0000 89.0000 90.0000 91.0000 92.0000 93.0000 94.0000 95.0000 96.0000 97.0000 98.0000 99.0000 100.0000 101.0000 102.0000 103.0000 104.0000 105.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+do_execsql_test 1.20.9.1 {
+  SELECT last_value(a+b) OVER ( ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2
+} {207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   216}
+
+do_execsql_test 1.20.9.2 {
+  SELECT last_value(a+b) OVER ( PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2
+} {223   223   223   223   223   223   223   223   223   223   223   223   223
+  196   210   210   210   210   210   210   210   210   210   210   210   210
+  210   210   210   210   210   210   210   210   263   280   280   280   280
+  280   280   280   280   280   280   280   280   280   280   280   234   279
+  279   279   279   279   279   279   279   279   279   279   279   279   279
+  279   279   279   279   279   279   221   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   235
+  274   274   274   274   274   274   274   274   274   274   274   274   274
+  274   274   274   274   274   274   274   189   212   212   212   212   212
+  212   212   212   212   212   212   212   212   212   212   212   212   212
+  212   212   207   207   207   207   207   207   207   207   207   207   207
+  207   207   207   207   207   207   207   207   207   216   232   232   232
+  232   232   232   232   232   232   232   232   232   232   232   232   250
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   249}
+
+do_execsql_test 1.20.9.3 {
+  SELECT last_value(a+b) OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2
+} {276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   120}
+
+do_execsql_test 1.20.9.4 {
+  SELECT last_value(a+b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2
+} {240   240   240   240   240   240   240   240   240   240   240   240   240
+  218   263   263   263   263   263   263   263   263   263   263   263   263
+  263   263   263   263   263   263   263   263   261   280   280   280   280
+  280   280   280   280   280   280   280   280   280   280   280   228   252
+  252   252   252   252   252   252   252   252   252   252   252   252   252
+  252   252   252   252   252   252   130   171   171   171   171   171   171
+  171   171   171   171   171   171   171   171   171   171   171   171   271
+  274   274   274   274   274   274   274   274   274   274   274   274   274
+  274   274   274   274   274   274   274   213   226   226   226   226   226
+  226   226   226   226   226   226   226   226   226   226   226   226   226
+  226   226   195   124   124   124   124   124   124   124   124   124   124
+  124   124   124   124   124   124   124   124   124   119   198   198   198
+  198   198   198   198   198   198   198   198   198   198   198   198   171
+  276   276   276   276   276   276   276   276   276   276   276   276   276
+  276   276   276   276   276   276   276   276   120}
+
+do_execsql_test 1.20.9.5 {
+  SELECT last_value(a+b) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2
+} {229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   229   229   229   229   229
+  229   229   229   229   229   229   229   229   249}
+
+do_execsql_test 1.20.9.6 {
+  SELECT last_value(a+b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.20.10.1 {
+  SELECT nth_value(b,b+1) OVER (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP) FROM t2
+} {98   9   73   75   43   78   32   4   5   25   27   15   31   24   43   98
+  94   79   77   61   22   79   8   73   3   85   43   34   98   36   63   91
+  11   20   21   75   90   56   96   84   5   28   33   5   56   59   81   19
+  87   36   2   26   63   73   89   95   74   73   79   29   70   65   33
+  14   26   47   94   14   15   5   72   41   11   75   19   53   91   79
+  37   91   93   59   58   36   23   84   33   73   47   58   34   58   73
+  15   13   7   11   99   31   66   38   80   79   95   60   59   19   59
+  {}   85   39   27   {}   9   59   75   91   33   {}   84   {}   33   50
+  {}   {}   36   77   29   {}   30   {}   12   {}   17   75   58   62   91
+  58   {}   {}   50   {}   27   75   {}   {}   {}   33   {}   {}   {}   {}
+  62   50   17   36   36   95   {}   {}   {}   {}   {}   10   {}   {}   {}
+  99   {}   {}   {}   {}   {}   {}   {}   30   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.20.10.2 {
+  SELECT nth_value(b,b+1) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   61   {}   {}   {}   81   {}   91   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   62   {}   {}   {}   22   {}   {}   {}   12
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   43   {}   {}   {}   {}
+  {}   83   {}   {}   {}   {}   {}   {}   {}   33   {}   {}   {}   {}   {}
+  {}   94   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   85   {}   {}   {}   {}   {}   {}   95   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   56   {}   36   66   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   87   {}   {}   {}   {}   {}   37   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   8   {}   {}   {}   {}   {}   58   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   19   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.20.10.3 {
+  SELECT nth_value(b,b+1) OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2
+} {2   2   2   2   2   3   5   7   7   8   8   9   9   10   11   12   12   12
+  13   15   15   16   16   16   19   20   21   22   23   23   25   26   26
+  27   29   30   30   31   32   33   33   33   34   34   35   36   36   36
+  37   38   39   39   40   41   41   43   43   44   46   47   47   47   49
+  50   51   52   54   55   56   56   56   57   58   58   59   59   59   60
+  61   62   63   64   65   66   67   69   70   72   73   73   74   74   74
+  75   77   78   79   80   81   82   83   84   84   84   85   86   87   87
+  88   89   89   90   90   91   91   91   93   93   94   95   96   96   96
+  97   98   99   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.20.10.4 {
+  SELECT nth_value(b,b+1) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2
+} {90   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   11
+  11   61   61   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   12   12   72   72   72   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   23   23   73   73   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   34   84   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   35   85   85   85   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   36   86   86   86   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   47   47
+  47   97   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   58   58   58   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   49   49   49   99   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.20.10.5 {
+  SELECT nth_value(b,b+1) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2
+} {65   72   81   34   41   35   73   74   14   15   32   53   1   2   35   5
+  74   95   55   61   75   63   34   81   12   91   74   93   43   33   22
+  75   56   56   23   85   72   23   33   84   22   15   93   73   12   6
+  46   43   75   75   36   87   54   87   85   43   15   84   85   56   66
+  83   36   97   85   78   34   94   75   33   65   17   36   68   7   15
+  94   38   78   27   95   96   36   68   7   15   16   38   89   66   56
+  38   76   89   89   47   85   56   59   {}   8   88   27   95   16   {}
+  98   79   39   59   16   {}   {}   8   16   98   36   66   {}   99   29
+  59   97   8   {}   {}   {}   27   17   8   {}   8   58   {}   98   {}   {}
+  {}   29   87   19   {}   89   {}   {}   37   {}   {}   {}   59   59   58
+  8   99   {}   {}   98   29   {}   {}   {}   {}   58   {}   89   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   19   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.20.10.6 {
+  SELECT nth_value(b,b+1) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.20.11.1 {
+  SELECT first_value(b) OVER (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP) FROM t2
+} {81   89   89   89   89   81   96   59   38   68   39   62   91   46   6
+  99   97   27   46   78   54   97   8   67   29   93   84   77   23   16
+  16   93   65   35   47   7   86   74   61   91   85   24   85   43   59
+  12   32   56   3   91   22   90   55   15   28   89   25   47   1   56   40
+  43   56   16   75   36   89   98   76   81   4   94   42   30   78   33
+  29   53   63   2   87   37   80   84   72   41   9   61   73   95   65   13
+  58   96   98   1   21   74   65   35   5   73   11   51   87   41   12   8
+  20   31   31   15   95   22   73   79   88   34   8   11   49   34   90
+  59   96   60   55   75   77   44   2   7   85   57   74   29   70   59   19
+  39   26   26   47   80   90   36   58   47   9   72   72   66   33   93
+  75   64   81   9   23   37   13   12   14   62   91   36   91   33   15
+  34   36   99   3   95   69   58   52   30   50   84   10   84   33   21
+  39   44   58   30   38   34   83}
+
+do_execsql_test 1.20.11.2 {
+  SELECT first_value(b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP) FROM t2
+} {40   90   90   90   90   40   30   80   20   90   60   70   80   90   91
+  81   81   81   81   91   61   91   91   1   81   41   61   1   21   11   51
+  41   31   31   11   12   62   62   62   62   12   32   22   42   2   72
+  12   22   2   72   72   23   93   93   93   93   23   93   43   3   43   33
+  53   63   73   13   73   73   33   93   23   13   84   54   54   54   54
+  84   74   24   4   94   84   74   34   34   44   74   64   14   34   35
+  65   65   65   65   35   85   85   55   15   25   75   95   65   65   35
+  5   15   95   55   75   46   96   96   96   96   46   6   46   16   16   86
+  56   56   56   16   36   76   96   96   26   26   27   97   97   97   97
+  27   97   67   77   47   7   47   87   37   87   77   7   57   47   47   68
+  38   38   38   38   68   78   8   28   98   78   58   98   8   88   8   59
+  89   89   89   89   59   39   99   29   59   89   89   29   9   79   49
+  59   29   59   19   39   9}
+
+do_execsql_test 1.20.11.3 {
+  SELECT first_value(b) OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2
+} {1   1   1   1   1   1   2   2   3   3   4   5   6   7   7   7   8   8   8
+  9   9   9   10   11   11   12   12   12   13   13   14   15   15   15   16
+  16   16   17   19   20   21   21   22   22   23   23   24   25   26   26
+  27   27   28   29   29   29   30   30   30   31   31   32   33   33   33
+  33   34   34   34   34   35   35   36   36   36   36   37   37   38   38
+  39   39   39   40   41   41   42   43   43   44   44   46   46   47   47
+  47   47   49   50   51   52   53   54   55   55   56   56   56   57   58
+  58   58   58   59   59   59   59   60   61   61   62   62   63   64   65
+  65   65   66   67   68   69   70   72   72   72   73   73   73   74   74
+  74   75   75   75   76   77   77   78   78   79   80   80   81   81   81
+  82   83   84   84   84   84   85   85   85   86   87   87   88   89   89
+  89   90   90   90   91   91   91   91   91   93   93   93   94   95   95
+  95   96   96   96   97   97}
+
+do_execsql_test 1.20.11.4 {
+  SELECT first_value(b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2
+} {20   10   10   10   10   20   30   30   30   40   50   60   70   80   1   1
+  1   1   1   1   11   11   21   21   31   31   41   41   51   61   61   81
+  81   81   91   2   2   2   2   2   2   12   12   12   22   22   32   42
+  52   62   62   3   3   3   3   3   3   13   13   23   23   33   33   33
+  33   43   43   53   63   73   73   73   14   4   4   4   4   14   24   34
+  34   34   34   44   44   54   64   74   74   74   84   15   5   5   5   5
+  15   15   15   25   35   35   55   55   65   65   65   75   75   75   85
+  85   16   6   6   6   6   16   16   16   26   26   36   36   36   36   46
+  46   56   56   56   66   76   7   7   7   7   7   7   7   17   27   27   37
+  37   47   47   47   47   57   67   77   77   8   8   8   8   8   8   8   28
+  38   38   58   58   58   58   68   78   9   9   9   9   9   9   9   19   29
+  29   29   39   39   39   49   59   59   59   59   69   79   89}
+
+do_execsql_test 1.20.11.5 {
+  SELECT first_value(b) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2
+} {40   90   90   90   90   40   30   80   20   90   60   70   80   90   30
+  50   10   30   81   91   61   91   91   1   81   41   61   1   21   11   51
+  41   31   31   11   81   91   91   21   62   12   32   22   42   2   72
+  12   22   2   72   72   12   62   52   82   93   23   93   43   3   43   33
+  53   63   73   13   73   73   33   93   23   13   33   3   33   83   54
+  84   74   24   4   94   84   74   34   34   44   74   64   14   34   84
+  84   44   34   65   35   85   85   55   15   25   75   95   65   65   35
+  5   15   95   55   75   85   75   15   95   96   46   6   46   16   16   86
+  56   56   56   16   36   76   96   96   26   26   36   66   36   36   97
+  27   97   67   77   47   7   47   87   37   87   77   7   57   47   47   37
+  27   17   7   38   68   78   8   28   98   78   58   98   8   88   8   58
+  58   58   38   89   59   39   99   29   59   89   89   29   9   79   49
+  59   29   59   19   39   9}
+
+do_execsql_test 1.20.11.6 {
+  SELECT first_value(b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.20.12.1 {
+  SELECT lead(b,b) OVER (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP) FROM t2
+} {96   9   11   89   32   53   91   30   51   56   54   73   22   59   75
+  74   78   8   16   65   15   8   31   87   90   12   32   96   74   76   37
+  85   90   15   35   2   60   36   75   9   51   47   63   51   90   26   42
+  26   8   76   80   90   37   87   56   79   5   87   8   2   39   73   64
+  36   90   72   78   36   73   51   33   20   41   2   26   37   33   8   14
+  33   81   55   1   9   12   39   64   87   72   34   82   21   34   99   62
+  74   41   69   22   75   27   58   8   79   77   26   26   55   {}   29
+  30   7   {}   66   55   2   34   64   {}   33   {}   44   84   {}   {}   95
+  85   19   {}   83   {}   91   {}   {}   9   50   91   33   34   {}   {}
+  84   {}   7   9   {}   {}   {}   44   {}   {}   {}   {}   91   84   {}   95
+  95   52   {}   {}   {}   {}   {}   21   {}   {}   {}   58   {}   {}   {}
+  {}   {}   {}   {}   83   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}}
+
+do_execsql_test 1.20.12.2 {
+  SELECT lead(b,b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   81   {}   {}   {}   21   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   62   {}   {}   {}   12   {}   {}   {}   72
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   53   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   34   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   95   {}   {}   {}   {}   {}   {}   85   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   56   {}   36   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   57   {}   {}   {}   {}   {}   7   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   8   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.20.12.3 {
+  SELECT lead(b,b) OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2
+} {1   2   3   3   5   6   7   8   8   9   9   10   11   12   12   13   13
+  14   15   16   16   17   19   20   21   22   23   24   25   26   27   27
+  28   29   30   31   32   33   33   33   34   34   35   36   36   36   37
+  38   39   39   40   41   42   43   43   44   46   47   47   47   49   50
+  52   53   54   55   56   56   57   58   58   58   59   59   59   60   61
+  62   62   64   65   65   67   69   70   72   72   73   74   74   75   75
+  75   77   78   80   81   81   83   84   84   85   85   85   87   88   89
+  89   89   90   90   91   91   91   93   93   94   95   95   96   97   97
+  98   99   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.20.12.4 {
+  SELECT lead(b,b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2
+} {80   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   1
+  11   81   81   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   12   12   72   82   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   13   23   73   73   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   34   84   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   35   85   85   95   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   36   86   96   96   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   37   47
+  47   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   58   58   68   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   39   49   59   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.20.12.5 {
+  SELECT lead(b,b) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2
+} {34   72   91   74   21   55   23   94   84   95   2   13   61   22   55
+  55   94   85   75   81   65   73   74   21   72   12   94   33   63   73
+  72   96   36   76   3   25   62   3   73   34   12   46   43   93   72   16
+  86   63   15   65   36   77   24   57   25   53   95   34   95   16   97
+  74   97   67   25   98   44   34   65   54   5   68   96   28   47   95
+  34   39   8   38   6   46   96   28   47   95   56   39   99   97   76   8
+  26   9   79   27   95   16   29   {}   58   58   77   85   56   {}   98
+  29   {}   19   96   {}   {}   78   56   98   36   97   {}   89   89   29
+  47   78   {}   {}   {}   38   68   58   {}   58   38   {}   98   {}   {}
+  {}   39   57   9   {}   79   {}   {}   7   {}   {}   {}   9   29   38   78
+  {}   {}   {}   8   39   {}   {}   {}   {}   59   {}   99   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   9   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.20.12.6 {
+  SELECT lead(b,b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.20.13.1 {
+  SELECT lag(b,b) OVER (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   38   {}   {}   {}   {}
+  {}   {}   {}   6   {}   {}   {}   {}   {}   81   46   6   {}   {}   {}   {}
+  23   {}   {}   {}   {}   {}   27   {}   {}   {}   35   6   {}   12   {}
+  23   {}   {}   61   84   {}   93   39   47   {}   54   46   96   56   {}
+  16   {}   {}   {}   {}   89   {}   16   43   {}   85   56   29   99   53
+  {}   59   {}   {}   91   59   53   84   99   {}   93   63   47   {}   {}
+  98   33   67   35   75   1   23   13   55   27   75   98   35   73   63   2
+  21   27   13   24   86   23   84   31   20   94   61   65   75   23   36
+  94   55   90   41   77   96   56   29   40   12   89   63   11   5   73
+  79   1   16   28   31   73   5   39   53   63   41   11   40   2   13   33
+  9   29   90   47   72   9   73   30   44   33   74   93   29   74   42   34
+  63   41   34   96   47   77   1   36   74   72   14   36   26   77   9   72
+  64   8   91   31   52   30}
+
+do_execsql_test 1.20.13.2 {
+  SELECT lag(b,b) OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   61   {}   81   {}   {}   {}   {}
+  1   {}   {}   {}   {}   {}   {}   {}   {}   {}   22   {}   {}   {}   12
+  {}   {}   62   {}   {}   {}   {}   {}   {}   {}   23   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   43   {}   23   {}   {}   {}   {}   {}
+  {}   54   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   75   {}
+  {}   {}   {}   {}   {}   55   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   47   {}   {}   {}   {}
+  {}   27   7   {}   {}   {}   {}   {}   {}   {}   {}   {}   68   {}   8   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   89   {}   {}
+  {}   {}   {}   {}   {}   29   9   {}   {}   {}}
+
+do_execsql_test 1.20.13.3 {
+  SELECT lag(b,b) OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2
+} {{}   1   1   1   1   2   2   2   2   2   2   3   3   3   4   4   5   6   6
+  6   7   7   7   7   7   8   8   8   8   8   8   9   9   9   9   9   9   9
+  9   9   9   10   10   10   10   11   11   11   11   11   12   12   12   12
+  13   13   13   13   13   14   15   15   15   15   16   16   16   16   16
+  17   19   20   20   21   21   21   21   22   22   22   22   23   23   23
+  23   23   24   23   24   24   25   26   26   26   26   26   26   26   26
+  26   26   26   27   27   27   27   28   29   29   29   29   30   30   30
+  30   30   30   31   31   31   31   31   32   32   32   32   32   32   31
+  32   33   33   33   33   33   33   34   34   34   34   34   34   34   34
+  35   35   35   35   35   36   36   36   36   36   36   36   37   37   37
+  38   38   38   38   38   38   39   39   39   39   40   40   41   41   42
+  43   42   43   43   43   43   44   44   44   46   46   46   47   47   47
+  47   47}
+
+do_execsql_test 1.20.13.4 {
+  SELECT lag(b,b) OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  1   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.20.13.5 {
+  SELECT lag(b,b) OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   30   {}   {}
+  {}   {}   {}   {}   91   {}   {}   {}   61   80   81   {}   {}   {}   {}
+  1   {}   {}   {}   30   {}   21   90   61   {}   22   {}   11   41   12
+  {}   {}   62   {}   {}   {}   {}   31   {}   50   23   30   21   90   {}
+  {}   62   {}   {}   81   {}   22   43   62   23   32   {}   91   {}   90
+  93   54   {}   {}   90   72   12   22   90   81   83   23   80   20   72
+  43   51   33   80   90   2   34   54   1   20   62   12   13   75   44   30
+  93   91   1   21   55   61   61   13   85   3   65   65   91   73   33   93
+  55   84   62   31   11   65   35   85   33   55   15   12   75   22   3
+  73   65   36   85   43   95   43   13   47   44   65   65   96   36   27
+  7   46   34   94   47   36   73   34   35   73   68   24   8   75   85   75
+  66   34   95   36   84   77   46   34   84   47   89   65   36   16   38
+  76   58   57   29   9   44   56   17}
+
+do_execsql_test 1.20.13.6 {
+  SELECT lag(b,b) OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.20.14.1 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP) FROM t2
+} {81.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  89.96.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  89.81.59.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  89.81.96.38.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  89.81.96.59.68.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  81.96.59.38.39.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  96.59.38.68.62.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  59.38.68.39.91.46.6.99.97.27.46.78.54.97.8.67.29.93.84.77.23.16.16.93.65.35.47.7.86.74.61.91.85.24.85.43.59.12.32.56.3.91.22.90.55.15.28.89.25.47.1.56.40.43.56.16.75.36.89.98.76.81.4.94.42.30.78.33.29.53.63.2.87.37.80.84.72.41.9.61.73.95.65.13.58.96.98.1.21.74.65.35.5.73.11.51.87.41.12.8.20.31.31.15.95.22.73.79.88.34.8.11.49.34.90.59.96.60.55.75.77.44.2.7.85.57.74.29.70.59.19.39.26.26.47.80.90.36.58.47.9.72.72.66.33.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
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+  9.72.72.66.93.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  72.72.66.33.75.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  72.66.33.93.64.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  66.33.93.75.81.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  33.93.75.64.9.23.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
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+  75.64.81.9.37.13.12.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
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+  9.23.37.13.14.62.91.36.91.33.15.34.36.99.3.95.69.58.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
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+  99.3.95.69.52.30.50.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
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+  69.58.52.30.84.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  58.52.30.50.10.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  52.30.50.84.84.33.21.39.44.58.30.38.34.83.27.82.17.7
+  30.50.84.10.33.21.39.44.58.30.38.34.83.27.82.17.7
+  50.84.10.84.21.39.44.58.30.38.34.83.27.82.17.7
+  84.10.84.33.39.44.58.30.38.34.83.27.82.17.7
+  10.84.33.21.44.58.30.38.34.83.27.82.17.7
+  84.33.21.39.58.30.38.34.83.27.82.17.7   33.21.39.44.30.38.34.83.27.82.17.7
+  21.39.44.58.38.34.83.27.82.17.7   39.44.58.30.34.83.27.82.17.7
+  44.58.30.38.83.27.82.17.7   58.30.38.34.27.82.17.7   30.38.34.83.82.17.7
+  38.34.83.27.17.7   34.83.27.82.7   83.27.82.17}
+
+do_execsql_test 1.20.14.2 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (PARTITION BY b%10 ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP) FROM t2
+} {40.30.80.20.90.60.70.80.90.30.50.10.30
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+  90.40.30.80.90.60.70.80.90.30.50.10.30
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+  80.20.90.60.80.90.30.50.10.30   20.90.60.70.90.30.50.10.30
+  90.60.70.80.30.50.10.30   60.70.80.90.50.10.30   70.80.90.30.10.30
+  80.90.30.50.30   90.30.50.10
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+  1.21.11.51.31.31.11.81.91.91.21   21.11.51.41.31.11.81.91.91.21
+  11.51.41.31.11.81.91.91.21   51.41.31.31.81.91.91.21   41.31.31.11.91.91.21
+  31.31.11.81.91.21   31.11.81.91.21   11.81.91.91
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+  12.32.22.42.72.12.22.2.72.72.12.62.52.82
+  32.22.42.2.12.22.2.72.72.12.62.52.82   22.42.2.72.22.2.72.72.12.62.52.82
+  42.2.72.12.2.72.72.12.62.52.82   2.72.12.22.72.72.12.62.52.82
+  72.12.22.2.72.12.62.52.82   12.22.2.72.12.62.52.82   22.2.72.72.62.52.82
+  2.72.72.12.52.82   72.72.12.62.82   72.12.62.52
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+  33.53.63.73.73.73.33.93.23.13.33.3.33.83
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+  73.13.73.73.93.23.13.33.3.33.83   13.73.73.33.23.13.33.3.33.83
+  73.73.33.93.13.33.3.33.83   73.33.93.23.33.3.33.83   33.93.23.13.3.33.83
+  93.23.13.33.33.83   23.13.33.3.83   13.33.3.33
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+  34.34.44.74.14.34.84.84.44.34   34.44.74.64.34.84.84.44.34
+  44.74.64.14.84.84.44.34   74.64.14.34.84.44.34   64.14.34.84.44.34
+  14.34.84.84.34   34.84.84.44
+  35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95
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+  25.75.95.65.35.5.15.95.55.75.85.75.15.95
+  75.95.65.65.5.15.95.55.75.85.75.15.95   95.65.65.35.15.95.55.75.85.75.15.95
+  65.65.35.5.95.55.75.85.75.15.95   65.35.5.15.55.75.85.75.15.95
+  35.5.15.95.75.85.75.15.95   5.15.95.55.85.75.15.95   15.95.55.75.75.15.95
+  95.55.75.85.15.95   55.75.85.75.95   75.85.75.15
+  46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  96.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  96.46.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  96.46.6.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  96.46.6.46.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  46.6.46.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  6.46.16.16.56.56.56.16.36.76.96.96.26.26.36.66.36.36
+  46.16.16.86.56.56.16.36.76.96.96.26.26.36.66.36.36
+  16.16.86.56.56.16.36.76.96.96.26.26.36.66.36.36
+  16.86.56.56.16.36.76.96.96.26.26.36.66.36.36
+  86.56.56.56.36.76.96.96.26.26.36.66.36.36
+  56.56.56.16.76.96.96.26.26.36.66.36.36
+  56.56.16.36.96.96.26.26.36.66.36.36   56.16.36.76.96.26.26.36.66.36.36
+  16.36.76.96.26.26.36.66.36.36   36.76.96.96.26.36.66.36.36
+  76.96.96.26.36.66.36.36   96.96.26.26.66.36.36   96.26.26.36.36.36
+  26.26.36.66.36   26.36.66.36
+  27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  97.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  97.27.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  97.27.97.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  97.27.97.67.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  27.97.67.77.7.47.87.37.87.77.7.57.47.47.37.27.17.7
+  97.67.77.47.47.87.37.87.77.7.57.47.47.37.27.17.7
+  67.77.47.7.87.37.87.77.7.57.47.47.37.27.17.7
+  77.47.7.47.37.87.77.7.57.47.47.37.27.17.7
+  47.7.47.87.87.77.7.57.47.47.37.27.17.7
+  7.47.87.37.77.7.57.47.47.37.27.17.7   47.87.37.87.7.57.47.47.37.27.17.7
+  87.37.87.77.57.47.47.37.27.17.7   37.87.77.7.47.47.37.27.17.7
+  87.77.7.57.47.37.27.17.7   77.7.57.47.37.27.17.7   7.57.47.47.27.17.7
+  57.47.47.37.17.7   47.47.37.27.7   47.37.27.17
+  68.78.8.28.98.78.58.98.8.88.8.58.58.58.38
+  38.78.8.28.98.78.58.98.8.88.8.58.58.58.38
+  38.68.8.28.98.78.58.98.8.88.8.58.58.58.38
+  38.68.78.28.98.78.58.98.8.88.8.58.58.58.38
+  38.68.78.8.98.78.58.98.8.88.8.58.58.58.38
+  68.78.8.28.78.58.98.8.88.8.58.58.58.38
+  78.8.28.98.58.98.8.88.8.58.58.58.38   8.28.98.78.98.8.88.8.58.58.58.38
+  28.98.78.58.8.88.8.58.58.58.38   98.78.58.98.88.8.58.58.58.38
+  78.58.98.8.8.58.58.58.38   58.98.8.88.58.58.58.38   98.8.88.8.58.58.38
+  8.88.8.58.58.38   88.8.58.58.38   8.58.58.58
+  59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.59.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.59.39.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  89.59.39.99.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  59.39.99.29.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  39.99.29.59.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  99.29.59.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  29.59.89.89.9.79.49.59.29.59.19.39.9.9.99.69.39
+  59.89.89.29.79.49.59.29.59.19.39.9.9.99.69.39
+  89.89.29.9.49.59.29.59.19.39.9.9.99.69.39
+  89.29.9.79.59.29.59.19.39.9.9.99.69.39
+  29.9.79.49.29.59.19.39.9.9.99.69.39   9.79.49.59.59.19.39.9.9.99.69.39
+  79.49.59.29.19.39.9.9.99.69.39   49.59.29.59.39.9.9.99.69.39
+  59.29.59.19.9.9.99.69.39   29.59.19.39.9.99.69.39   59.19.39.9.99.69.39
+  19.39.9.9.69.39   39.9.9.99.39   9.9.99.69}
+
+do_execsql_test 1.20.14.3 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2
+} {1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.2.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.3.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.1.2.2.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  1.2.2.3.4.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  2.2.3.3.5.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  2.3.3.4.6.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  3.3.4.5.7.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  3.4.5.6.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  4.5.6.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  5.6.7.7.8.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  6.7.7.7.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  7.7.7.8.8.9.9.9.10.11.11.12.12.12.13.13.14.15.15.15.16.16.16.17.19.20.21.21.22.22.23.23.24.25.26.26.27.27.28.29.29.29.30.30.30.31.31.32.33.33.33.33.34.34.34.34.35.35.36.36.36.36.37.37.38.38.39.39.39.40.41.41.42.43.43.44.44.46.46.47.47.47.47.49.50.51.52.53.54.55.55.56.56.56.57.58.58.58.58.59.59.59.59.60.61.61.62.62.63.64.65.65.65.66.67.68.69.70.72.72.72.73.73.73.74.74.74.75.75.75.76.77.77.78.78.79.80.80.81.81.81.82.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
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+  80.81.81.81.83.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  81.81.81.82.84.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  81.81.82.83.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  81.82.83.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  82.83.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  83.84.84.84.85.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  84.84.84.84.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  84.84.84.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  84.84.85.85.86.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  84.85.85.85.87.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  85.85.85.86.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  85.85.86.87.88.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  85.86.87.87.89.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  86.87.87.88.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  87.87.88.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  87.88.89.89.90.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  88.89.89.89.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  89.89.89.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  89.89.90.90.91.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  89.90.90.90.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  90.90.90.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  90.90.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  90.91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  91.91.91.91.93.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  91.91.91.91.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  91.91.91.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  91.91.93.93.94.95.95.95.96.96.96.97.97.98.98.99.99
+  91.93.93.93.95.95.95.96.96.96.97.97.98.98.99.99
+  93.93.93.94.95.95.96.96.96.97.97.98.98.99.99
+  93.93.94.95.95.96.96.96.97.97.98.98.99.99
+  93.94.95.95.96.96.96.97.97.98.98.99.99
+  94.95.95.95.96.96.97.97.98.98.99.99   95.95.95.96.96.97.97.98.98.99.99
+  95.95.96.96.97.97.98.98.99.99   95.96.96.96.97.98.98.99.99
+  96.96.96.97.98.98.99.99   96.96.97.97.98.99.99   96.97.97.98.99.99
+  97.97.98.98.99   97.98.98.99}
+
+do_execsql_test 1.20.14.4 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( PARTITION BY b%10 ORDER BY b,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2
+} {20.30.30.30.40.50.60.70.80.80.90.90.90
+  10.30.30.30.40.50.60.70.80.80.90.90.90
+  10.20.30.30.40.50.60.70.80.80.90.90.90
+  10.20.30.30.40.50.60.70.80.80.90.90.90
+  10.20.30.30.40.50.60.70.80.80.90.90.90
+  20.30.30.30.50.60.70.80.80.90.90.90   30.30.30.40.60.70.80.80.90.90.90
+  30.30.40.50.70.80.80.90.90.90   30.40.50.60.80.80.90.90.90
+  40.50.60.70.80.90.90.90   50.60.70.80.90.90.90   60.70.80.80.90.90
+  70.80.80.90.90   80.80.90.90
+  1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  1.11.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  1.1.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  1.1.11.21.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  1.1.11.11.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  1.11.11.21.31.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  11.11.21.21.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  11.21.21.31.41.41.51.61.61.81.81.81.91.91.91.91.91
+  21.21.31.31.41.51.61.61.81.81.81.91.91.91.91.91
+  21.31.31.41.51.61.61.81.81.81.91.91.91.91.91
+  31.31.41.41.61.61.81.81.81.91.91.91.91.91
+  31.41.41.51.61.81.81.81.91.91.91.91.91
+  41.41.51.61.81.81.81.91.91.91.91.91   41.51.61.61.81.81.91.91.91.91.91
+  51.61.61.81.81.91.91.91.91.91   61.61.81.81.91.91.91.91.91
+  61.81.81.81.91.91.91.91   81.81.81.91.91.91.91   81.81.91.91.91.91
+  81.91.91.91.91   91.91.91.91   2.12.12.12.22.22.32.42.52.62.62.72.72.72.82
+  2.12.12.12.22.22.32.42.52.62.62.72.72.72.82
+  2.2.12.12.22.22.32.42.52.62.62.72.72.72.82
+  2.2.12.12.22.22.32.42.52.62.62.72.72.72.82
+  2.2.12.12.22.22.32.42.52.62.62.72.72.72.82
+  2.12.12.12.22.32.42.52.62.62.72.72.72.82
+  12.12.12.22.32.42.52.62.62.72.72.72.82
+  12.12.22.22.42.52.62.62.72.72.72.82   12.22.22.32.52.62.62.72.72.72.82
+  22.22.32.42.62.62.72.72.72.82   22.32.42.52.62.72.72.72.82
+  32.42.52.62.72.72.72.82   42.52.62.62.72.72.82   52.62.62.72.72.82
+  62.62.72.72.82   62.72.72.72
+  3.13.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  3.13.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  3.3.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  3.3.13.23.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  3.3.13.13.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  3.13.13.23.33.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  13.13.23.23.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  13.23.23.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  23.23.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  23.33.33.33.43.43.53.63.73.73.73.83.93.93.93
+  33.33.33.33.43.53.63.73.73.73.83.93.93.93
+  33.33.33.43.53.63.73.73.73.83.93.93.93
+  33.33.43.43.63.73.73.73.83.93.93.93   33.43.43.53.73.73.73.83.93.93.93
+  43.43.53.63.73.73.83.93.93.93   43.53.63.73.73.83.93.93.93
+  53.63.73.73.83.93.93.93   63.73.73.73.93.93.93   73.73.73.83.93.93
+  73.73.83.93.93   73.83.93.93
+  14.24.34.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  4.24.34.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  4.14.34.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  4.14.24.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  4.14.24.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  14.24.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  24.34.34.34.44.44.54.64.74.74.74.84.84.84.84.94
+  34.34.34.34.44.54.64.74.74.74.84.84.84.84.94
+  34.34.34.44.54.64.74.74.74.84.84.84.84.94
+  34.34.44.44.64.74.74.74.84.84.84.84.94
+  34.44.44.54.74.74.74.84.84.84.84.94   44.44.54.64.74.74.84.84.84.84.94
+  44.54.64.74.74.84.84.84.84.94   54.64.74.74.84.84.84.84.94
+  64.74.74.74.84.84.84.94   74.74.74.84.84.84.94   74.74.84.84.84.94
+  74.84.84.84.94   84.84.84.84
+  15.15.15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  5.15.15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  5.15.15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  5.15.15.25.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  5.15.15.15.35.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  15.15.15.25.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  15.15.25.35.55.55.65.65.65.75.75.75.85.85.85.95.95.95
+  15.25.35.35.55.65.65.65.75.75.75.85.85.85.95.95.95
+  25.35.35.55.65.65.65.75.75.75.85.85.85.95.95.95
+  35.35.55.55.65.65.75.75.75.85.85.85.95.95.95
+  35.55.55.65.65.75.75.75.85.85.85.95.95.95
+  55.55.65.65.75.75.75.85.85.85.95.95.95
+  55.65.65.65.75.75.85.85.85.95.95.95   65.65.65.75.75.85.85.85.95.95.95
+  65.65.75.75.85.85.85.95.95.95   65.75.75.75.85.85.95.95.95
+  75.75.75.85.85.95.95.95   75.75.85.85.95.95.95   75.85.85.85.95.95
+  85.85.85.95.95   85.85.95.95
+  16.16.16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  6.16.16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  6.16.16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  6.16.16.26.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  6.16.16.16.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  16.16.16.26.36.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  16.16.26.26.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  16.26.26.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  26.26.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  26.36.36.36.46.46.56.56.56.66.76.86.96.96.96
+  36.36.36.36.46.56.56.56.66.76.86.96.96.96
+  36.36.36.46.56.56.56.66.76.86.96.96.96
+  36.36.46.46.56.56.66.76.86.96.96.96   36.46.46.56.56.66.76.86.96.96.96
+  46.46.56.56.66.76.86.96.96.96   46.56.56.56.76.86.96.96.96
+  56.56.56.66.86.96.96.96   56.56.66.76.96.96.96   56.66.76.86.96.96
+  66.76.86.96.96   76.86.96.96
+  7.7.17.27.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  7.7.17.27.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  7.7.17.27.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  7.7.7.27.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  7.7.7.17.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  7.7.17.27.37.37.47.47.47.47.57.67.77.77.87.87.97.97
+  7.17.27.27.37.47.47.47.47.57.67.77.77.87.87.97.97
+  17.27.27.37.47.47.47.47.57.67.77.77.87.87.97.97
+  27.27.37.37.47.47.47.57.67.77.77.87.87.97.97
+  27.37.37.47.47.47.57.67.77.77.87.87.97.97
+  37.37.47.47.47.57.67.77.77.87.87.97.97
+  37.47.47.47.57.67.77.77.87.87.97.97   47.47.47.47.67.77.77.87.87.97.97
+  47.47.47.57.77.77.87.87.97.97   47.47.57.67.77.87.87.97.97
+  47.57.67.77.87.87.97.97   57.67.77.77.87.97.97   67.77.77.87.97.97
+  77.77.87.87.97   77.87.87.97   8.8.28.38.38.58.58.58.58.68.78.78.88.98.98
+  8.8.28.38.38.58.58.58.58.68.78.78.88.98.98
+  8.8.28.38.38.58.58.58.58.68.78.78.88.98.98
+  8.8.8.38.38.58.58.58.58.68.78.78.88.98.98
+  8.8.8.28.38.58.58.58.58.68.78.78.88.98.98
+  8.8.28.38.58.58.58.58.68.78.78.88.98.98
+  8.28.38.38.58.58.58.68.78.78.88.98.98   28.38.38.58.58.58.68.78.78.88.98.98
+  38.38.58.58.58.68.78.78.88.98.98   38.58.58.58.68.78.78.88.98.98
+  58.58.58.58.78.78.88.98.98   58.58.58.68.78.88.98.98   58.58.68.78.88.98.98
+  58.68.78.78.98.98   68.78.78.88.98   78.78.88.98
+  9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  9.9.19.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  9.9.9.29.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  9.9.9.19.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  9.9.19.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  9.19.29.29.39.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  19.29.29.29.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  29.29.29.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  29.29.39.39.49.59.59.59.59.69.79.89.89.89.99.99
+  29.39.39.39.59.59.59.59.69.79.89.89.89.99.99
+  39.39.39.49.59.59.59.69.79.89.89.89.99.99
+  39.39.49.59.59.59.69.79.89.89.89.99.99
+  39.49.59.59.59.69.79.89.89.89.99.99   49.59.59.59.69.79.89.89.89.99.99
+  59.59.59.59.79.89.89.89.99.99   59.59.59.69.89.89.89.99.99
+  59.59.69.79.89.89.99.99   59.69.79.89.89.99.99   69.79.89.89.99.99
+  79.89.89.89.99   89.89.89.99}
+
+do_execsql_test 1.20.14.5 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER ( ORDER BY b%10,a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP ) FROM t2
+} {40.30.80.20.90.60.70.80.90.30.50.10.30.81.91.61.91.91.1.81.41.61.1.21.11.51.41.31.31.11.81.91.91.21.62.12.32.22.42.2.72.12.22.2.72.72.12.62.52.82.93.23.93.43.3.43.33.53.63.73.13.73.73.33.93.23.13.33.3.33.83.54.84.74.24.4.94.84.74.34.34.44.74.64.14.34.84.84.44.34.65.35.85.85.55.15.25.75.95.65.65.35.5.15.95.55.75.85.75.15.95.96.46.6.46.16.16.86.56.56.56.16.36.76.96.96.26.26.36.66.36.36.97.27.97.67.77.47.7.47.87.37.87.77.7.57.47.47.37.27.17.7.38.68.78.8.28.98.78.58.98.8.88.8.58.58.58.38.89.59.39.99.29.59.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
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+  59.39.99.29.89.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  39.99.29.59.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  99.29.59.89.29.9.79.49.59.29.59.19.39.9.9.99.69.39
+  29.59.89.89.9.79.49.59.29.59.19.39.9.9.99.69.39
+  59.89.89.29.79.49.59.29.59.19.39.9.9.99.69.39
+  89.89.29.9.49.59.29.59.19.39.9.9.99.69.39
+  89.29.9.79.59.29.59.19.39.9.9.99.69.39
+  29.9.79.49.29.59.19.39.9.9.99.69.39   9.79.49.59.59.19.39.9.9.99.69.39
+  79.49.59.29.19.39.9.9.99.69.39   49.59.29.59.39.9.9.99.69.39
+  59.29.59.19.9.9.99.69.39   29.59.19.39.9.99.69.39   59.19.39.9.99.69.39
+  19.39.9.9.69.39   39.9.9.99.39   9.9.99.69}
+
+do_execsql_test 1.20.14.6 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (PARTITION BY b%2,a ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP) FROM t2
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.20.14.7 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (win1 ORDER BY b%10 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP) 
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a)
+    ORDER BY 1
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.20.14.8 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER (win1 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP) 
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a ORDER BY b%10)
+    ORDER BY 1
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.20.14.9 {
+  SELECT group_concat(CAST(b AS TEXT), '.') OVER win2
+    FROM t2
+    WINDOW win1 AS (PARTITION BY b%2,a ORDER BY b%10),
+           win2 AS (win1 ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP)
+    ORDER BY 1
+} {{}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}
+  {}   {}   {}   {}   {}   {}   {}   {}   {}   {}   {}}
+
+do_execsql_test 1.20.15.1 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE a%2=0) OVER win FROM t2
+    WINDOW win AS (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP)
+} {190 96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  190 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  190 89.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  190 89.96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  190 89.96.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  189 96.38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  188 96.38.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  187 38.39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  186 38.39.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  185 39.91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  184 39.91.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  183 91.6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  182 91.6.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  181 6.97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  180 6.97.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  179 97.46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  178 97.46.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  177 46.54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  176 46.54.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  175 54.8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  174 54.8.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  173 8.29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  172 8.29.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  171 29.84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  170 29.84.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  169 84.23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  168 84.23.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  167 23.16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  166 23.16.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  165 16.65.47.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  164 16.65.86.61.85.85.59.32.3.22.55.28.25.1.40.56.75.89.76.4.42.78.29.63.87.80.72.9.73.65.58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
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+  104 65.58.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  103 58.98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  102 58.98.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  101 98.21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  100 98.21.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  99 21.65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  98 21.65.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  97 65.5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  96 65.5.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  95 5.11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  94 5.11.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  93 11.87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  92 11.87.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  91 87.12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  90 87.12.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  89 12.20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  88 12.20.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  87 20.31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  86 20.31.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  85 31.95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  84 31.95.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  83 95.73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  82 95.73.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  81 73.88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  80 73.88.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  79 88.8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  78 88.8.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  77 8.49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  76 8.49.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  75 49.90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  74 49.90.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  73 90.96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  72 90.96.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  71 96.55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  70 96.55.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  69 55.77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  68 55.77.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  67 77.2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  66 77.2.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  65 2.85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  64 2.85.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  63 85.74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  62 85.74.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  61 74.70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  60 74.70.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  59 70.19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  58 70.19.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  57 19.26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  56 19.26.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  55 26.47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  54 26.47.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  53 47.90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  52 47.90.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  51 90.58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  50 90.58.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  49 58.9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  48 58.9.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  47 9.72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  46 9.72.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  45 72.33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  44 72.33.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  43 33.75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  42 33.75.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  41 75.81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  40 75.81.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  39 81.23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  38 81.23.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  37 23.13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  36 23.13.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  35 13.14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  34 13.14.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  33 14.91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  32 14.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  31 91.91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  30 91.91.36.3.69.52.50.10.33.39.58.38.83.82.7
+  29 91.15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  28 91.15.3.69.52.50.10.33.39.58.38.83.82.7
+  27 15.36.3.69.52.50.10.33.39.58.38.83.82.7
+  26 15.36.69.52.50.10.33.39.58.38.83.82.7
+  25 36.3.69.52.50.10.33.39.58.38.83.82.7
+  24 36.3.52.50.10.33.39.58.38.83.82.7   23 3.69.52.50.10.33.39.58.38.83.82.7
+  22 3.69.50.10.33.39.58.38.83.82.7   21 69.52.50.10.33.39.58.38.83.82.7
+  20 69.52.10.33.39.58.38.83.82.7   19 52.50.10.33.39.58.38.83.82.7
+  18 52.50.33.39.58.38.83.82.7   17 50.10.33.39.58.38.83.82.7
+  16 50.10.39.58.38.83.82.7   15 10.33.39.58.38.83.82.7
+  14 10.33.58.38.83.82.7   13 33.39.58.38.83.82.7   12 33.39.38.83.82.7
+  11 39.58.38.83.82.7   10 39.58.83.82.7   9 58.38.83.82.7   8 58.38.82.7
+  7 38.83.82.7   6 38.83.7   5 83.82.7   4 83.82}
+
+do_execsql_test 1.20.15.2 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE 0=1) OVER win FROM t2
+    WINDOW win AS (ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP)
+} {190 {}   190 {}   190 {}   190 {}   190 {}   189 {}   188 {}   187 {}
+  186 {}   185 {}   184 {}   183 {}   182 {}   181 {}   180 {}   179 {}
+  178 {}   177 {}   176 {}   175 {}   174 {}   173 {}   172 {}   171 {}
+  170 {}   169 {}   168 {}   167 {}   166 {}   165 {}   164 {}   163 {}
+  162 {}   161 {}   160 {}   159 {}   158 {}   157 {}   156 {}   155 {}
+  154 {}   153 {}   152 {}   151 {}   150 {}   149 {}   148 {}   147 {}
+  146 {}   145 {}   144 {}   143 {}   142 {}   141 {}   140 {}   139 {}
+  138 {}   137 {}   136 {}   135 {}   134 {}   133 {}   132 {}   131 {}
+  130 {}   129 {}   128 {}   127 {}   126 {}   125 {}   124 {}   123 {}
+  122 {}   121 {}   120 {}   119 {}   118 {}   117 {}   116 {}   115 {}
+  114 {}   113 {}   112 {}   111 {}   110 {}   109 {}   108 {}   107 {}
+  106 {}   105 {}   104 {}   103 {}   102 {}   101 {}   100 {}   99 {}
+  98 {}   97 {}   96 {}   95 {}   94 {}   93 {}   92 {}   91 {}   90 {}
+  89 {}   88 {}   87 {}   86 {}   85 {}   84 {}   83 {}   82 {}   81 {}
+  80 {}   79 {}   78 {}   77 {}   76 {}   75 {}   74 {}   73 {}   72 {}
+  71 {}   70 {}   69 {}   68 {}   67 {}   66 {}   65 {}   64 {}   63 {}
+  62 {}   61 {}   60 {}   59 {}   58 {}   57 {}   56 {}   55 {}   54 {}
+  53 {}   52 {}   51 {}   50 {}   49 {}   48 {}   47 {}   46 {}   45 {}
+  44 {}   43 {}   42 {}   41 {}   40 {}   39 {}   38 {}   37 {}   36 {}
+  35 {}   34 {}   33 {}   32 {}   31 {}   30 {}   29 {}   28 {}   27 {}
+  26 {}   25 {}   24 {}   23 {}   22 {}   21 {}   20 {}   19 {}   18 {}
+  17 {}   16 {}   15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}
+  7 {}   6 {}   5 {}   4 {}}
+
+do_execsql_test 1.20.15.3 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE 1=0) OVER win FROM t2
+    WINDOW win AS (PARTITION BY (a%10) ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP)
+} {19 {}   19 {}   19 {}   19 {}   19 {}   18 {}   17 {}   16 {}   15 {}
+  14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}
+  4 {}   18 {}   18 {}   18 {}   18 {}   18 {}   17 {}   16 {}   15 {}
+  14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}
+  4 {}   18 {}   18 {}   18 {}   18 {}   18 {}   17 {}   16 {}   15 {}
+  14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}
+  4 {}   18 {}   18 {}   18 {}   18 {}   18 {}   17 {}   16 {}   15 {}
+  14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}
+  4 {}   18 {}   18 {}   18 {}   18 {}   18 {}   17 {}   16 {}   15 {}
+  14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}
+  4 {}   18 {}   18 {}   18 {}   18 {}   18 {}   17 {}   16 {}   15 {}
+  14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}
+  4 {}   18 {}   18 {}   18 {}   18 {}   18 {}   17 {}   16 {}   15 {}
+  14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}
+  4 {}   18 {}   18 {}   18 {}   18 {}   18 {}   17 {}   16 {}   15 {}
+  14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}
+  4 {}   18 {}   18 {}   18 {}   18 {}   18 {}   17 {}   16 {}   15 {}
+  14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}
+  4 {}   18 {}   18 {}   18 {}   18 {}   18 {}   17 {}   16 {}   15 {}
+  14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}   7 {}   6 {}   5 {}
+  4 {}}
+
+do_execsql_test 1.20.15.4 {
+  SELECT count(*) OVER win, group_concat(CAST(b AS TEXT), '.') 
+    FILTER (WHERE a%2=0) OVER win FROM t2
+    WINDOW win AS (PARTITION BY (a%10) ORDER BY a ROWS BETWEEN 4 PRECEDING    AND UNBOUNDED FOLLOWING EXCLUDE GROUP)
+} {19 6.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  19 89.29.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  19 89.6.47.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  19 89.6.29.59.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  19 89.6.29.47.28.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  18 6.29.47.59.75.78.72.98.87.73.96.74.90.75.91.69.39.7
+  17 29.47.59.28.78.72.98.87.73.96.74.90.75.91.69.39.7
+  16 47.59.28.75.72.98.87.73.96.74.90.75.91.69.39.7
+  15 59.28.75.78.98.87.73.96.74.90.75.91.69.39.7
+  14 28.75.78.72.87.73.96.74.90.75.91.69.39.7
+  13 75.78.72.98.73.96.74.90.75.91.69.39.7
+  12 78.72.98.87.96.74.90.75.91.69.39.7   11 72.98.87.73.74.90.75.91.69.39.7
+  10 98.87.73.96.90.75.91.69.39.7   9 87.73.96.74.75.91.69.39.7
+  8 73.96.74.90.91.69.39.7   7 96.74.90.75.69.39.7   6 74.90.75.91.39.7
+  5 90.75.91.69.7   4 75.91.69.39   18 {}   18 {}   18 {}   18 {}   18 {}
+  17 {}   16 {}   15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}
+  7 {}   6 {}   5 {}   4 {}
+  18 97.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  18 96.84.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  18 96.97.86.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  18 96.97.84.32.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  18 96.97.84.86.25.89.29.9.21.12.88.55.70.58.81.91.52.58
+  17 97.84.86.32.89.29.9.21.12.88.55.70.58.81.91.52.58
+  16 84.86.32.25.29.9.21.12.88.55.70.58.81.91.52.58
+  15 86.32.25.89.9.21.12.88.55.70.58.81.91.52.58
+  14 32.25.89.29.21.12.88.55.70.58.81.91.52.58
+  13 25.89.29.9.12.88.55.70.58.81.91.52.58
+  12 89.29.9.21.88.55.70.58.81.91.52.58   11 29.9.21.12.55.70.58.81.91.52.58
+  10 9.21.12.88.70.58.81.91.52.58   9 21.12.88.55.58.81.91.52.58
+  8 12.88.55.70.81.91.52.58   7 88.55.70.58.91.52.58   6 55.70.58.81.52.58
+  5 70.58.81.91.58   4 58.81.91.52   18 {}   18 {}   18 {}   18 {}   18 {}
+  17 {}   16 {}   15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}
+  7 {}   6 {}   5 {}   4 {}
+  18 46.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  18 38.23.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  18 38.46.61.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  18 38.46.23.3.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  18 38.46.23.61.1.76.63.73.65.20.8.77.19.9.23.15.50.38
+  17 46.23.61.3.76.63.73.65.20.8.77.19.9.23.15.50.38
+  16 23.61.3.1.63.73.65.20.8.77.19.9.23.15.50.38
+  15 61.3.1.76.73.65.20.8.77.19.9.23.15.50.38
+  14 3.1.76.63.65.20.8.77.19.9.23.15.50.38
+  13 1.76.63.73.20.8.77.19.9.23.15.50.38
+  12 76.63.73.65.8.77.19.9.23.15.50.38   11 63.73.65.20.77.19.9.23.15.50.38
+  10 73.65.20.8.19.9.23.15.50.38   9 65.20.8.77.9.23.15.50.38
+  8 20.8.77.19.23.15.50.38   7 8.77.19.9.15.50.38   6 77.19.9.23.50.38
+  5 19.9.23.15.38   4 9.23.15.50   18 {}   18 {}   18 {}   18 {}   18 {}
+  17 {}   16 {}   15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}
+  7 {}   6 {}   5 {}   4 {}
+  18 54.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  18 39.16.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  18 39.54.85.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  18 39.54.16.22.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  18 39.54.16.85.40.4.87.65.5.31.49.2.26.72.13.36.10.83
+  17 54.16.85.22.4.87.65.5.31.49.2.26.72.13.36.10.83
+  16 16.85.22.40.87.65.5.31.49.2.26.72.13.36.10.83
+  15 85.22.40.4.65.5.31.49.2.26.72.13.36.10.83
+  14 22.40.4.87.5.31.49.2.26.72.13.36.10.83
+  13 40.4.87.65.31.49.2.26.72.13.36.10.83
+  12 4.87.65.5.49.2.26.72.13.36.10.83   11 87.65.5.31.2.26.72.13.36.10.83
+  10 65.5.31.49.26.72.13.36.10.83   9 5.31.49.2.72.13.36.10.83
+  8 31.49.2.26.13.36.10.83   7 49.2.26.72.36.10.83   6 2.26.72.13.10.83
+  5 26.72.13.36.83   4 72.13.36.10   18 {}   18 {}   18 {}   18 {}   18 {}
+  17 {}   16 {}   15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}
+  7 {}   6 {}   5 {}   4 {}
+  18 8.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  18 91.65.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  18 91.8.85.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  18 91.8.65.55.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  18 91.8.65.85.56.42.80.58.11.95.90.85.47.33.14.3.33.82
+  17 8.65.85.55.42.80.58.11.95.90.85.47.33.14.3.33.82
+  16 65.85.55.56.80.58.11.95.90.85.47.33.14.3.33.82
+  15 85.55.56.42.58.11.95.90.85.47.33.14.3.33.82
+  14 55.56.42.80.11.95.90.85.47.33.14.3.33.82
+  13 56.42.80.58.95.90.85.47.33.14.3.33.82
+  12 42.80.58.11.90.85.47.33.14.3.33.82   11 80.58.11.95.85.47.33.14.3.33.82
+  10 58.11.95.90.47.33.14.3.33.82   9 11.95.90.85.33.14.3.33.82
+  8 95.90.85.47.14.3.33.82   7 90.85.47.33.3.33.82   6 85.47.33.14.33.82
+  5 47.33.14.3.82   4 33.14.3.33   18 {}   18 {}   18 {}   18 {}   18 {}
+  17 {}   16 {}   15 {}   14 {}   13 {}   12 {}   11 {}   10 {}   9 {}   8 {}
+  7 {}   6 {}   5 {}   4 {}}
+
+finish_test
diff --git a/test/window4.tcl b/test/window4.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..0b91d768a4b0066c6f1a9a27cabfc71fc35cd27f
--- /dev/null
+++ b/test/window4.tcl
@@ -0,0 +1,424 @@
+## 2018 May 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname $argv0] pg_common.tcl]
+
+#=========================================================================
+
+start_test window4 "2018 June 04"
+ifcapable !windowfunc
+
+execsql_test 1.0 {
+  DROP TABLE IF EXISTS t3;
+  CREATE TABLE t3(a TEXT PRIMARY KEY);
+  INSERT INTO t3 VALUES('a'), ('b'), ('c'), ('d'), ('e');
+  INSERT INTO t3 VALUES('f'), ('g'), ('h'), ('i'), ('j');
+}
+
+for {set i 1} {$i < 20} {incr i} {
+  execsql_test 1.$i "SELECT a, ntile($i) OVER (ORDER BY a) FROM t3"
+}
+
+execsql_test 2.0 {
+  DROP TABLE IF EXISTS t4;
+  CREATE TABLE t4(a INTEGER PRIMARY KEY, b TEXT, c INTEGER);
+  INSERT INTO t4 VALUES(1, 'A', 9);
+  INSERT INTO t4 VALUES(2, 'B', 3);
+  INSERT INTO t4 VALUES(3, 'C', 2);
+  INSERT INTO t4 VALUES(4, 'D', 10);
+  INSERT INTO t4 VALUES(5, 'E', 5);
+  INSERT INTO t4 VALUES(6, 'F', 1);
+  INSERT INTO t4 VALUES(7, 'G', 1);
+  INSERT INTO t4 VALUES(8, 'H', 2);
+  INSERT INTO t4 VALUES(9, 'I', 10);
+  INSERT INTO t4 VALUES(10, 'J', 4);
+}
+
+execsql_test 2.1 {
+  SELECT a, nth_value(b, c) OVER (ORDER BY a) FROM t4
+}
+
+execsql_test 2.2.1 {
+  SELECT a, lead(b) OVER (ORDER BY a) FROM t4
+}
+execsql_test 2.2.2 {
+  SELECT a, lead(b, 2) OVER (ORDER BY a) FROM t4
+}
+execsql_test 2.2.3 {
+  SELECT a, lead(b, 3, 'abc') OVER (ORDER BY a) FROM t4
+}
+
+execsql_test 2.3.1 {
+  SELECT a, lag(b) OVER (ORDER BY a) FROM t4
+}
+execsql_test 2.3.2 {
+  SELECT a, lag(b, 2) OVER (ORDER BY a) FROM t4
+}
+execsql_test 2.3.3 {
+  SELECT a, lag(b, 3, 'abc') OVER (ORDER BY a) FROM t4
+}
+
+execsql_test 2.4.1 {
+  SELECT string_agg(b, '.') OVER (
+    ORDER BY a ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+  ) FROM t4
+}
+
+execsql_test 3.0 {
+  DROP TABLE IF EXISTS t5;
+  CREATE TABLE t5(a INTEGER PRIMARY KEY, b TEXT, c TEXT, d INTEGER);
+  INSERT INTO t5 VALUES(1, 'A', 'one',   5);
+  INSERT INTO t5 VALUES(2, 'B', 'two',   4);
+  INSERT INTO t5 VALUES(3, 'A', 'three', 3);
+  INSERT INTO t5 VALUES(4, 'B', 'four',  2);
+  INSERT INTO t5 VALUES(5, 'A', 'five',  1);
+}
+
+execsql_test 3.1 {
+  SELECT a, nth_value(c, d) OVER (ORDER BY b) FROM t5
+}
+
+execsql_test 3.2 {
+  SELECT a, nth_value(c, d) OVER (PARTITION BY b ORDER BY a) FROM t5
+}
+
+execsql_test 3.3 {
+  SELECT a, count(*) OVER abc, count(*) OVER def FROM t5
+  WINDOW abc AS (ORDER BY a), 
+         def AS (ORDER BY a DESC)
+  ORDER BY a;
+}
+
+execsql_test 3.4 {
+  SELECT a, max(a) FILTER (WHERE (a%2)=0) OVER w FROM t5 
+  WINDOW w AS (ORDER BY a)
+}
+
+execsql_test 3.5.1 {
+  SELECT a, max(c) OVER (ORDER BY a ROWS BETWEEN 1 PRECEDING AND 2 PRECEDING)
+  FROM t5
+}
+execsql_test 3.5.2 {
+  SELECT a, max(c) OVER (ORDER BY a ROWS BETWEEN 1 PRECEDING AND 1 PRECEDING)
+  FROM t5
+}
+execsql_test 3.5.3 {
+  SELECT a, max(c) OVER (ORDER BY a ROWS BETWEEN 0 PRECEDING AND 0 PRECEDING)
+  FROM t5
+}
+
+execsql_test 3.6.1 {
+  SELECT a, max(c) OVER (ORDER BY a ROWS BETWEEN 2 FOLLOWING AND 1 FOLLOWING)
+  FROM t5
+}
+execsql_test 3.6.2 {
+  SELECT a, max(c) OVER (ORDER BY a ROWS BETWEEN 1 FOLLOWING AND 1 FOLLOWING)
+  FROM t5
+}
+execsql_test 3.6.3 {
+  SELECT a, max(c) OVER (ORDER BY a ROWS BETWEEN 0 FOLLOWING AND 0 FOLLOWING)
+  FROM t5
+}
+
+==========
+
+execsql_test 4.0 {
+  DROP TABLE IF EXISTS ttt;
+  CREATE TABLE ttt(a INTEGER PRIMARY KEY, b INTEGER, c INTEGER);
+  INSERT INTO ttt VALUES(1, 1, 1);
+  INSERT INTO ttt VALUES(2, 2, 2);
+  INSERT INTO ttt VALUES(3, 3, 3);
+
+  INSERT INTO ttt VALUES(4, 1, 2);
+  INSERT INTO ttt VALUES(5, 2, 3);
+  INSERT INTO ttt VALUES(6, 3, 4);
+
+  INSERT INTO ttt VALUES(7, 1, 3);
+  INSERT INTO ttt VALUES(8, 2, 4);
+  INSERT INTO ttt VALUES(9, 3, 5);
+}
+
+execsql_test 4.1 {
+  SELECT max(c), max(b) OVER (ORDER BY b) FROM ttt GROUP BY b;
+}
+
+execsql_test 4.2 {
+  SELECT max(b) OVER (ORDER BY max(c)) FROM ttt GROUP BY b;
+}
+
+execsql_test 4.3 {
+  SELECT abs(max(b) OVER (ORDER BY b)) FROM ttt GROUP BY b;
+}
+
+execsql_test 4.4 {
+  SELECT sum(b) OVER (
+    ORDER BY a RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+  ) FROM ttt;
+}
+
+set lPart  [list "PARTITION BY b" "PARTITION BY b, a" "" "PARTITION BY a"]
+set lOrder [list "ORDER BY a" "ORDER BY a DESC" "" "ORDER BY b, a"]
+set lRange {
+    "RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW"
+    "RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING"
+    "RANGE BETWEEN CURRENT ROW AND CURRENT ROW"
+    "RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING"
+}
+
+set lRows {
+    "ROWS BETWEEN 3 PRECEDING AND 1 FOLLOWING"
+    "ROWS BETWEEN 3 PRECEDING AND 2 FOLLOWING"
+    "ROWS BETWEEN 1 PRECEDING AND 1 PRECEDING"
+    "ROWS BETWEEN 0 PRECEDING AND 1 PRECEDING"
+    "ROWS BETWEEN 1 FOLLOWING AND 500 FOLLOWING"
+}
+
+set tn 1
+set SQL {
+  SELECT max(c) OVER ($p1 $o1 $r1), 
+  min(c) OVER ($p2 $o2 $r2)
+  FROM ttt ORDER BY a
+}
+set SQL2 {
+  SELECT sum(c) OVER ($p1 $o1 $r1), 
+         sum(c) OVER ($p2 $o2 $r2)
+  FROM ttt ORDER BY a
+}
+
+set o1 [lindex $lOrder 0]
+set o2 [lindex $lOrder 0]
+set r1 [lindex $lRange 0]
+set r2 [lindex $lRange 0]
+foreach p1 $lPart { foreach p2 $lPart { 
+  execsql_test 4.5.$tn.1 [subst $SQL]
+  execsql_test 4.5.$tn.2 [subst $SQL2]
+  incr tn
+}}
+
+set o1 [lindex $lOrder 0]
+set o2 [lindex $lOrder 0]
+set p1 [lindex $lPart 0]
+set p2 [lindex $lPart 0]
+foreach r1 $lRange { foreach r2 $lRange { 
+  execsql_test 4.5.$tn.1 [subst $SQL]
+  execsql_test 4.5.$tn.2 [subst $SQL2]
+  incr tn
+}}
+foreach r1 $lRows { foreach r2 $lRows { 
+  execsql_test 4.5.$tn.1 [subst $SQL]
+  execsql_test 4.5.$tn.2 [subst $SQL2]
+  incr tn
+}}
+
+set r1 [lindex $lRange 0]
+set r2 [lindex $lRange 0]
+set p1 [lindex $lPart 0]
+set p2 [lindex $lPart 0]
+foreach o1 $lOrder { foreach o2 $lOrder { 
+  execsql_test 4.5.$tn.1 [subst $SQL]
+  execsql_test 4.5.$tn.2 [subst $SQL2]
+  incr tn
+}}
+
+==========
+
+execsql_test 7.0 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(x INTEGER, y INTEGER);
+  INSERT INTO t1 VALUES(1, 2);
+  INSERT INTO t1 VALUES(3, 4);
+  INSERT INTO t1 VALUES(5, 6);
+  INSERT INTO t1 VALUES(7, 8);
+  INSERT INTO t1 VALUES(9, 10);
+}
+
+execsql_test 7.1 {
+  SELECT lead(y) OVER win FROM t1
+  WINDOW win AS (ORDER BY x)
+}
+
+execsql_test 7.2 {
+  SELECT lead(y, 2) OVER win FROM t1
+  WINDOW win AS (ORDER BY x)
+}
+
+execsql_test 7.3 {
+  SELECT lead(y, 3, -1) OVER win FROM t1
+  WINDOW win AS (ORDER BY x)
+}
+
+execsql_test 7.4 {
+  SELECT 
+    lead(y) OVER win, lead(y) OVER win
+  FROM t1
+  WINDOW win AS (ORDER BY x)
+}
+
+execsql_test 7.5 {
+  SELECT 
+    lead(y) OVER win, 
+    lead(y, 2) OVER win, 
+    lead(y, 3, -1) OVER win
+  FROM t1
+  WINDOW win AS (ORDER BY x)
+}
+
+==========
+
+execsql_test 8.0 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a INTEGER, b INTEGER, c INTEGER, d INTEGER);
+  INSERT INTO t1 VALUES(1, 2, 3, 4);
+  INSERT INTO t1 VALUES(5, 6, 7, 8);
+  INSERT INTO t1 VALUES(9, 10, 11, 12);
+}
+
+execsql_test 8.1 {
+  SELECT row_number() OVER win,
+         nth_value(d,2) OVER win,
+         lead(d) OVER win
+  FROM t1
+  WINDOW win AS (ORDER BY a)
+}
+
+execsql_test 8.2 {
+    SELECT row_number() OVER win,
+           rank() OVER win,
+           dense_rank() OVER win,
+           ntile(2) OVER win,
+           first_value(d) OVER win,
+           last_value(d) OVER win,
+           nth_value(d,2) OVER win,
+           lead(d) OVER win,
+           lag(d) OVER win,
+           max(d) OVER win,
+           min(d) OVER win
+    FROM t1
+    WINDOW win AS (ORDER BY a)
+}
+
+==========
+
+execsql_test 9.0 {
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t2(x INTEGER);
+  INSERT INTO t2 VALUES(1), (1), (1), (4), (4), (6), (7);
+}
+
+execsql_test 9.1 {
+  SELECT rank() OVER () FROM t2
+}
+execsql_test 9.2 {
+  SELECT dense_rank() OVER (PARTITION BY x) FROM t2
+}
+execsql_float_test 9.3 {
+  SELECT x, percent_rank() OVER (PARTITION BY x ORDER BY x) FROM t2
+}
+
+execsql_test 9.4 {
+  SELECT x, rank() OVER (ORDER BY x) FROM t2 ORDER BY 1,2
+}
+
+execsql_test 9.5 {
+  SELECT DISTINCT x, rank() OVER (ORDER BY x) FROM t2 ORDER BY 1,2
+}
+
+execsql_float_test 9.6 {
+  SELECT percent_rank() OVER () FROM t1
+}
+
+execsql_float_test 9.7 {
+  SELECT cume_dist() OVER () FROM t1
+}
+
+execsql_test 10.0 {
+  DROP TABLE IF EXISTS t7;
+  CREATE TABLE t7(id INTEGER PRIMARY KEY, a INTEGER, b INTEGER);
+  INSERT INTO t7(id, a, b) VALUES
+    (1, 1, 2), (2, 1, NULL), (3, 1, 4),
+    (4, 3, NULL), (5, 3, 8), (6, 3, 1);
+}
+execsql_test 10.1 {
+  SELECT id, min(b) OVER (PARTITION BY a ORDER BY id) FROM t7;
+}
+
+execsql_test 10.2 {
+  SELECT id, lead(b, -1) OVER (PARTITION BY a ORDER BY id) FROM t7;
+}
+execsql_test 10.3 {
+  SELECT id, lag(b, -1) OVER (PARTITION BY a ORDER BY id) FROM t7;
+}
+
+execsql_test 11.0 {
+  DROP VIEW IF EXISTS v8;
+  DROP TABLE IF EXISTS t8;
+  CREATE TABLE t8(t INT, total INT);
+  INSERT INTO t8 VALUES(0,2);
+  INSERT INTO t8 VALUES(5,1);
+  INSERT INTO t8 VALUES(10,1);
+}
+
+execsql_test 11.1 {
+  SELECT NTILE(256) OVER (ORDER BY total) - 1 AS nt FROM t8;
+}
+
+execsql_test 11.2 {
+  CREATE VIEW v8 AS SELECT NTILE(256) OVER (ORDER BY total) - 1 AS nt FROM t8;
+}
+
+execsql_test 11.3 {
+  SELECT * FROM v8;
+}
+
+execsql_test 11.4 {
+  SELECT * FROM (
+    SELECT NTILE(256) OVER (ORDER BY total) - 1 AS nt FROM t8
+  ) sub;
+}
+
+execsql_test 11.5 {
+  SELECT sum( min(t) ) OVER () FROM t8 GROUP BY total;
+}
+execsql_test 11.5 {
+  SELECT sum( max(t) ) OVER () FROM t8 GROUP BY total;
+}
+
+execsql_test 11.7 {
+  SELECT sum( min(t) ) OVER () FROM t8;
+}
+execsql_test 11.8 {
+  SELECT sum( max(t) ) OVER () FROM t8;
+}
+
+execsql_test 12.0 {
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t2(a INTEGER);
+  INSERT INTO t2 VALUES(1), (2), (3);
+}
+
+execsql_test 12.1 {
+  SELECT (SELECT min(a) OVER ()) FROM t2
+}
+
+execsql_float_test 12.2 {
+  SELECT (SELECT avg(a)) FROM t2 ORDER BY 1
+}
+
+execsql_float_test 12.3 {
+  SELECT 
+    (SELECT avg(a) UNION SELECT min(a) OVER ()) 
+  FROM t2 GROUP BY a
+  ORDER BY 1
+}
+
+finish_test
+
diff --git a/test/window4.test b/test/window4.test
new file mode 100644
index 0000000000000000000000000000000000000000..4194f75355e6d1cf5f8a0d463d828b228bd3befa
--- /dev/null
+++ b/test/window4.test
@@ -0,0 +1,1390 @@
+# 2018 June 04
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+
+####################################################
+# DO NOT EDIT! THIS FILE IS AUTOMATICALLY GENERATED!
+####################################################
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix window4
+
+ifcapable !windowfunc { finish_test ; return }
+do_execsql_test 1.0 {
+  DROP TABLE IF EXISTS t3;
+  CREATE TABLE t3(a TEXT PRIMARY KEY);
+  INSERT INTO t3 VALUES('a'), ('b'), ('c'), ('d'), ('e');
+  INSERT INTO t3 VALUES('f'), ('g'), ('h'), ('i'), ('j');
+} {}
+
+do_execsql_test 1.1 {
+  SELECT a, ntile(1) OVER (ORDER BY a) FROM t3
+} {a 1   b 1   c 1   d 1   e 1   f 1   g 1   h 1   i 1   j 1}
+
+do_execsql_test 1.2 {
+  SELECT a, ntile(2) OVER (ORDER BY a) FROM t3
+} {a 1   b 1   c 1   d 1   e 1   f 2   g 2   h 2   i 2   j 2}
+
+do_execsql_test 1.3 {
+  SELECT a, ntile(3) OVER (ORDER BY a) FROM t3
+} {a 1   b 1   c 1   d 1   e 2   f 2   g 2   h 3   i 3   j 3}
+
+do_execsql_test 1.4 {
+  SELECT a, ntile(4) OVER (ORDER BY a) FROM t3
+} {a 1   b 1   c 1   d 2   e 2   f 2   g 3   h 3   i 4   j 4}
+
+do_execsql_test 1.5 {
+  SELECT a, ntile(5) OVER (ORDER BY a) FROM t3
+} {a 1   b 1   c 2   d 2   e 3   f 3   g 4   h 4   i 5   j 5}
+
+do_execsql_test 1.6 {
+  SELECT a, ntile(6) OVER (ORDER BY a) FROM t3
+} {a 1   b 1   c 2   d 2   e 3   f 3   g 4   h 4   i 5   j 6}
+
+do_execsql_test 1.7 {
+  SELECT a, ntile(7) OVER (ORDER BY a) FROM t3
+} {a 1   b 1   c 2   d 2   e 3   f 3   g 4   h 5   i 6   j 7}
+
+do_execsql_test 1.8 {
+  SELECT a, ntile(8) OVER (ORDER BY a) FROM t3
+} {a 1   b 1   c 2   d 2   e 3   f 4   g 5   h 6   i 7   j 8}
+
+do_execsql_test 1.9 {
+  SELECT a, ntile(9) OVER (ORDER BY a) FROM t3
+} {a 1   b 1   c 2   d 3   e 4   f 5   g 6   h 7   i 8   j 9}
+
+do_execsql_test 1.10 {
+  SELECT a, ntile(10) OVER (ORDER BY a) FROM t3
+} {a 1   b 2   c 3   d 4   e 5   f 6   g 7   h 8   i 9   j 10}
+
+do_execsql_test 1.11 {
+  SELECT a, ntile(11) OVER (ORDER BY a) FROM t3
+} {a 1   b 2   c 3   d 4   e 5   f 6   g 7   h 8   i 9   j 10}
+
+do_execsql_test 1.12 {
+  SELECT a, ntile(12) OVER (ORDER BY a) FROM t3
+} {a 1   b 2   c 3   d 4   e 5   f 6   g 7   h 8   i 9   j 10}
+
+do_execsql_test 1.13 {
+  SELECT a, ntile(13) OVER (ORDER BY a) FROM t3
+} {a 1   b 2   c 3   d 4   e 5   f 6   g 7   h 8   i 9   j 10}
+
+do_execsql_test 1.14 {
+  SELECT a, ntile(14) OVER (ORDER BY a) FROM t3
+} {a 1   b 2   c 3   d 4   e 5   f 6   g 7   h 8   i 9   j 10}
+
+do_execsql_test 1.15 {
+  SELECT a, ntile(15) OVER (ORDER BY a) FROM t3
+} {a 1   b 2   c 3   d 4   e 5   f 6   g 7   h 8   i 9   j 10}
+
+do_execsql_test 1.16 {
+  SELECT a, ntile(16) OVER (ORDER BY a) FROM t3
+} {a 1   b 2   c 3   d 4   e 5   f 6   g 7   h 8   i 9   j 10}
+
+do_execsql_test 1.17 {
+  SELECT a, ntile(17) OVER (ORDER BY a) FROM t3
+} {a 1   b 2   c 3   d 4   e 5   f 6   g 7   h 8   i 9   j 10}
+
+do_execsql_test 1.18 {
+  SELECT a, ntile(18) OVER (ORDER BY a) FROM t3
+} {a 1   b 2   c 3   d 4   e 5   f 6   g 7   h 8   i 9   j 10}
+
+do_execsql_test 1.19 {
+  SELECT a, ntile(19) OVER (ORDER BY a) FROM t3
+} {a 1   b 2   c 3   d 4   e 5   f 6   g 7   h 8   i 9   j 10}
+
+do_execsql_test 2.0 {
+  DROP TABLE IF EXISTS t4;
+  CREATE TABLE t4(a INTEGER PRIMARY KEY, b TEXT, c INTEGER);
+  INSERT INTO t4 VALUES(1, 'A', 9);
+  INSERT INTO t4 VALUES(2, 'B', 3);
+  INSERT INTO t4 VALUES(3, 'C', 2);
+  INSERT INTO t4 VALUES(4, 'D', 10);
+  INSERT INTO t4 VALUES(5, 'E', 5);
+  INSERT INTO t4 VALUES(6, 'F', 1);
+  INSERT INTO t4 VALUES(7, 'G', 1);
+  INSERT INTO t4 VALUES(8, 'H', 2);
+  INSERT INTO t4 VALUES(9, 'I', 10);
+  INSERT INTO t4 VALUES(10, 'J', 4);
+} {}
+
+do_execsql_test 2.1 {
+  SELECT a, nth_value(b, c) OVER (ORDER BY a) FROM t4
+} {1 {}   2 {}   3 B   4 {}   5 E   6 A   7 A   8 B   9 {}   10 D}
+
+do_execsql_test 2.2.1 {
+  SELECT a, lead(b) OVER (ORDER BY a) FROM t4
+} {1 B   2 C   3 D   4 E   5 F   6 G   7 H   8 I   9 J   10 {}}
+
+do_execsql_test 2.2.2 {
+  SELECT a, lead(b, 2) OVER (ORDER BY a) FROM t4
+} {1 C   2 D   3 E   4 F   5 G   6 H   7 I   8 J   9 {}   10 {}}
+
+do_execsql_test 2.2.3 {
+  SELECT a, lead(b, 3, 'abc') OVER (ORDER BY a) FROM t4
+} {1 D   2 E   3 F   4 G   5 H   6 I   7 J   8 abc   9 abc   10 abc}
+
+do_execsql_test 2.3.1 {
+  SELECT a, lag(b) OVER (ORDER BY a) FROM t4
+} {1 {}   2 A   3 B   4 C   5 D   6 E   7 F   8 G   9 H   10 I}
+
+do_execsql_test 2.3.2 {
+  SELECT a, lag(b, 2) OVER (ORDER BY a) FROM t4
+} {1 {}   2 {}   3 A   4 B   5 C   6 D   7 E   8 F   9 G   10 H}
+
+do_execsql_test 2.3.3 {
+  SELECT a, lag(b, 3, 'abc') OVER (ORDER BY a) FROM t4
+} {1 abc   2 abc   3 abc   4 A   5 B   6 C   7 D   8 E   9 F   10 G}
+
+do_execsql_test 2.4.1 {
+  SELECT group_concat(b, '.') OVER (
+    ORDER BY a ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+  ) FROM t4
+} {A.B.C.D.E.F.G.H.I.J   B.C.D.E.F.G.H.I.J   C.D.E.F.G.H.I.J   D.E.F.G.H.I.J
+  E.F.G.H.I.J   F.G.H.I.J   G.H.I.J   H.I.J   I.J   J}
+
+do_execsql_test 3.0 {
+  DROP TABLE IF EXISTS t5;
+  CREATE TABLE t5(a INTEGER PRIMARY KEY, b TEXT, c TEXT, d INTEGER);
+  INSERT INTO t5 VALUES(1, 'A', 'one',   5);
+  INSERT INTO t5 VALUES(2, 'B', 'two',   4);
+  INSERT INTO t5 VALUES(3, 'A', 'three', 3);
+  INSERT INTO t5 VALUES(4, 'B', 'four',  2);
+  INSERT INTO t5 VALUES(5, 'A', 'five',  1);
+} {}
+
+do_execsql_test 3.1 {
+  SELECT a, nth_value(c, d) OVER (ORDER BY b) FROM t5
+} {1 {}   3 five   5 one   2 two   4 three}
+
+do_execsql_test 3.2 {
+  SELECT a, nth_value(c, d) OVER (PARTITION BY b ORDER BY a) FROM t5
+} {1 {}   3 {}   5 one   2 {}   4 four}
+
+do_execsql_test 3.3 {
+  SELECT a, count(*) OVER abc, count(*) OVER def FROM t5
+  WINDOW abc AS (ORDER BY a), 
+         def AS (ORDER BY a DESC)
+  ORDER BY a;
+} {1 1 5   2 2 4   3 3 3   4 4 2   5 5 1}
+
+do_execsql_test 3.4 {
+  SELECT a, max(a) FILTER (WHERE (a%2)=0) OVER w FROM t5 
+  WINDOW w AS (ORDER BY a)
+} {1 {}   2 2   3 2   4 4   5 4}
+
+do_execsql_test 3.5.1 {
+  SELECT a, max(c) OVER (ORDER BY a ROWS BETWEEN 1 PRECEDING AND 2 PRECEDING)
+  FROM t5
+} {1 {}   2 {}   3 {}   4 {}   5 {}}
+
+do_execsql_test 3.5.2 {
+  SELECT a, max(c) OVER (ORDER BY a ROWS BETWEEN 1 PRECEDING AND 1 PRECEDING)
+  FROM t5
+} {1 {}   2 one   3 two   4 three   5 four}
+
+do_execsql_test 3.5.3 {
+  SELECT a, max(c) OVER (ORDER BY a ROWS BETWEEN 0 PRECEDING AND 0 PRECEDING)
+  FROM t5
+} {1 one   2 two   3 three   4 four   5 five}
+
+do_execsql_test 3.6.1 {
+  SELECT a, max(c) OVER (ORDER BY a ROWS BETWEEN 2 FOLLOWING AND 1 FOLLOWING)
+  FROM t5
+} {1 {}   2 {}   3 {}   4 {}   5 {}}
+
+do_execsql_test 3.6.2 {
+  SELECT a, max(c) OVER (ORDER BY a ROWS BETWEEN 1 FOLLOWING AND 1 FOLLOWING)
+  FROM t5
+} {1 two   2 three   3 four   4 five   5 {}}
+
+do_execsql_test 3.6.3 {
+  SELECT a, max(c) OVER (ORDER BY a ROWS BETWEEN 0 FOLLOWING AND 0 FOLLOWING)
+  FROM t5
+} {1 one   2 two   3 three   4 four   5 five}
+
+#==========================================================================
+
+do_execsql_test 4.0 {
+  DROP TABLE IF EXISTS ttt;
+  CREATE TABLE ttt(a INTEGER PRIMARY KEY, b INTEGER, c INTEGER);
+  INSERT INTO ttt VALUES(1, 1, 1);
+  INSERT INTO ttt VALUES(2, 2, 2);
+  INSERT INTO ttt VALUES(3, 3, 3);
+
+  INSERT INTO ttt VALUES(4, 1, 2);
+  INSERT INTO ttt VALUES(5, 2, 3);
+  INSERT INTO ttt VALUES(6, 3, 4);
+
+  INSERT INTO ttt VALUES(7, 1, 3);
+  INSERT INTO ttt VALUES(8, 2, 4);
+  INSERT INTO ttt VALUES(9, 3, 5);
+} {}
+
+do_execsql_test 4.1 {
+  SELECT max(c), max(b) OVER (ORDER BY b) FROM ttt GROUP BY b;
+} {3 1   4 2   5 3}
+
+do_execsql_test 4.2 {
+  SELECT max(b) OVER (ORDER BY max(c)) FROM ttt GROUP BY b;
+} {1   2   3}
+
+do_execsql_test 4.3 {
+  SELECT abs(max(b) OVER (ORDER BY b)) FROM ttt GROUP BY b;
+} {1   2   3}
+
+do_execsql_test 4.4 {
+  SELECT sum(b) OVER (
+    ORDER BY a RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+  ) FROM ttt;
+} {18   17   15   12   11   9   6   5   3}
+
+do_execsql_test 4.5.1.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+  min(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   2 1   3 2   4 3   3 1   4 2   5 3}
+
+do_execsql_test 4.5.1.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+         sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   3 3   5 5   7 7   6 6   9 9   12 12}
+
+do_execsql_test 4.5.2.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+  min(c) OVER (PARTITION BY b, a ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   2 2   3 3   4 4   3 3   4 4   5 5}
+
+do_execsql_test 4.5.2.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+         sum(c) OVER (PARTITION BY b, a ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   3 2   5 3   7 4   6 3   9 4   12 5}
+
+do_execsql_test 4.5.3.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+  min(c) OVER ( ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 1   3 1   2 1   3 1   4 1   3 1   4 1   5 1}
+
+do_execsql_test 4.5.3.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+         sum(c) OVER ( ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 3   3 6   3 8   5 11   7 15   6 18   9 22   12 27}
+
+do_execsql_test 4.5.4.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+  min(c) OVER (PARTITION BY a ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   2 2   3 3   4 4   3 3   4 4   5 5}
+
+do_execsql_test 4.5.4.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+         sum(c) OVER (PARTITION BY a ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   3 2   5 3   7 4   6 3   9 4   12 5}
+
+do_execsql_test 4.5.5.1 {
+  SELECT max(c) OVER (PARTITION BY b, a ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+  min(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   2 1   3 2   4 3   3 1   4 2   5 3}
+
+do_execsql_test 4.5.5.2 {
+  SELECT sum(c) OVER (PARTITION BY b, a ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+         sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   2 3   3 5   4 7   3 6   4 9   5 12}
+
+do_execsql_test 4.5.6.1 {
+  SELECT max(c) OVER (PARTITION BY b, a ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+  min(c) OVER (PARTITION BY b, a ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   2 2   3 3   4 4   3 3   4 4   5 5}
+
+do_execsql_test 4.5.6.2 {
+  SELECT sum(c) OVER (PARTITION BY b, a ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+         sum(c) OVER (PARTITION BY b, a ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   2 2   3 3   4 4   3 3   4 4   5 5}
+
+do_execsql_test 4.5.7.1 {
+  SELECT max(c) OVER (PARTITION BY b, a ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+  min(c) OVER ( ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 1   3 1   2 1   3 1   4 1   3 1   4 1   5 1}
+
+do_execsql_test 4.5.7.2 {
+  SELECT sum(c) OVER (PARTITION BY b, a ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+         sum(c) OVER ( ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 3   3 6   2 8   3 11   4 15   3 18   4 22   5 27}
+
+do_execsql_test 4.5.8.1 {
+  SELECT max(c) OVER (PARTITION BY b, a ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+  min(c) OVER (PARTITION BY a ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   2 2   3 3   4 4   3 3   4 4   5 5}
+
+do_execsql_test 4.5.8.2 {
+  SELECT sum(c) OVER (PARTITION BY b, a ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+         sum(c) OVER (PARTITION BY a ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   2 2   3 3   4 4   3 3   4 4   5 5}
+
+do_execsql_test 4.5.9.1 {
+  SELECT max(c) OVER ( ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+  min(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   3 1   3 2   4 3   4 1   4 2   5 3}
+
+do_execsql_test 4.5.9.2 {
+  SELECT sum(c) OVER ( ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+         sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   3 2   6 3   8 3   11 5   15 7   18 6   22 9   27 12}
+
+do_execsql_test 4.5.10.1 {
+  SELECT max(c) OVER ( ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+  min(c) OVER (PARTITION BY b, a ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   3 2   3 3   4 4   4 3   4 4   5 5}
+
+do_execsql_test 4.5.10.2 {
+  SELECT sum(c) OVER ( ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+         sum(c) OVER (PARTITION BY b, a ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   3 2   6 3   8 2   11 3   15 4   18 3   22 4   27 5}
+
+do_execsql_test 4.5.11.1 {
+  SELECT max(c) OVER ( ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+  min(c) OVER ( ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 1   3 1   3 1   3 1   4 1   4 1   4 1   5 1}
+
+do_execsql_test 4.5.11.2 {
+  SELECT sum(c) OVER ( ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+         sum(c) OVER ( ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   3 3   6 6   8 8   11 11   15 15   18 18   22 22   27 27}
+
+do_execsql_test 4.5.12.1 {
+  SELECT max(c) OVER ( ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+  min(c) OVER (PARTITION BY a ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   3 2   3 3   4 4   4 3   4 4   5 5}
+
+do_execsql_test 4.5.12.2 {
+  SELECT sum(c) OVER ( ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+         sum(c) OVER (PARTITION BY a ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   3 2   6 3   8 2   11 3   15 4   18 3   22 4   27 5}
+
+do_execsql_test 4.5.13.1 {
+  SELECT max(c) OVER (PARTITION BY a ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+  min(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   2 1   3 2   4 3   3 1   4 2   5 3}
+
+do_execsql_test 4.5.13.2 {
+  SELECT sum(c) OVER (PARTITION BY a ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+         sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   2 3   3 5   4 7   3 6   4 9   5 12}
+
+do_execsql_test 4.5.14.1 {
+  SELECT max(c) OVER (PARTITION BY a ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+  min(c) OVER (PARTITION BY b, a ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   2 2   3 3   4 4   3 3   4 4   5 5}
+
+do_execsql_test 4.5.14.2 {
+  SELECT sum(c) OVER (PARTITION BY a ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+         sum(c) OVER (PARTITION BY b, a ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   2 2   3 3   4 4   3 3   4 4   5 5}
+
+do_execsql_test 4.5.15.1 {
+  SELECT max(c) OVER (PARTITION BY a ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+  min(c) OVER ( ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 1   3 1   2 1   3 1   4 1   3 1   4 1   5 1}
+
+do_execsql_test 4.5.15.2 {
+  SELECT sum(c) OVER (PARTITION BY a ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+         sum(c) OVER ( ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 3   3 6   2 8   3 11   4 15   3 18   4 22   5 27}
+
+do_execsql_test 4.5.16.1 {
+  SELECT max(c) OVER (PARTITION BY a ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+  min(c) OVER (PARTITION BY a ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   2 2   3 3   4 4   3 3   4 4   5 5}
+
+do_execsql_test 4.5.16.2 {
+  SELECT sum(c) OVER (PARTITION BY a ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+         sum(c) OVER (PARTITION BY a ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   2 2   3 3   4 4   3 3   4 4   5 5}
+
+do_execsql_test 4.5.17.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+  min(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   2 1   3 2   4 3   3 1   4 2   5 3}
+
+do_execsql_test 4.5.17.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+         sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   3 3   5 5   7 7   6 6   9 9   12 12}
+
+do_execsql_test 4.5.18.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+  min(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   2 1   3 2   4 3   3 1   4 2   5 3}
+
+do_execsql_test 4.5.18.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+         sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING)
+  FROM ttt ORDER BY a
+} {1 6   2 9   3 12   3 6   5 9   7 12   6 6   9 9   12 12}
+
+do_execsql_test 4.5.19.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+  min(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN CURRENT ROW AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   2 2   3 3   4 4   3 3   4 4   5 5}
+
+do_execsql_test 4.5.19.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+         sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN CURRENT ROW AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   3 2   5 3   7 4   6 3   9 4   12 5}
+
+do_execsql_test 4.5.20.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+  min(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   2 2   3 3   4 4   3 3   4 4   5 5}
+
+do_execsql_test 4.5.20.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+         sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING)
+  FROM ttt ORDER BY a
+} {1 6   2 9   3 12   3 5   5 7   7 9   6 3   9 4   12 5}
+
+do_execsql_test 4.5.21.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING), 
+  min(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {3 1   4 2   5 3   3 1   4 2   5 3   3 1   4 2   5 3}
+
+do_execsql_test 4.5.21.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING), 
+         sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {6 1   9 2   12 3   6 3   9 5   12 7   6 6   9 9   12 12}
+
+do_execsql_test 4.5.22.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING), 
+  min(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING)
+  FROM ttt ORDER BY a
+} {3 1   4 2   5 3   3 1   4 2   5 3   3 1   4 2   5 3}
+
+do_execsql_test 4.5.22.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING), 
+         sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING)
+  FROM ttt ORDER BY a
+} {6 6   9 9   12 12   6 6   9 9   12 12   6 6   9 9   12 12}
+
+do_execsql_test 4.5.23.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING), 
+  min(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN CURRENT ROW AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {3 1   4 2   5 3   3 2   4 3   5 4   3 3   4 4   5 5}
+
+do_execsql_test 4.5.23.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING), 
+         sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN CURRENT ROW AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {6 1   9 2   12 3   6 2   9 3   12 4   6 3   9 4   12 5}
+
+do_execsql_test 4.5.24.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING), 
+  min(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING)
+  FROM ttt ORDER BY a
+} {3 1   4 2   5 3   3 2   4 3   5 4   3 3   4 4   5 5}
+
+do_execsql_test 4.5.24.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING), 
+         sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING)
+  FROM ttt ORDER BY a
+} {6 6   9 9   12 12   6 5   9 7   12 9   6 3   9 4   12 5}
+
+do_execsql_test 4.5.25.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN CURRENT ROW AND CURRENT ROW), 
+  min(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   2 1   3 2   4 3   3 1   4 2   5 3}
+
+do_execsql_test 4.5.25.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN CURRENT ROW AND CURRENT ROW), 
+         sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   2 3   3 5   4 7   3 6   4 9   5 12}
+
+do_execsql_test 4.5.26.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN CURRENT ROW AND CURRENT ROW), 
+  min(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   2 1   3 2   4 3   3 1   4 2   5 3}
+
+do_execsql_test 4.5.26.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN CURRENT ROW AND CURRENT ROW), 
+         sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING)
+  FROM ttt ORDER BY a
+} {1 6   2 9   3 12   2 6   3 9   4 12   3 6   4 9   5 12}
+
+do_execsql_test 4.5.27.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN CURRENT ROW AND CURRENT ROW), 
+  min(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN CURRENT ROW AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   2 2   3 3   4 4   3 3   4 4   5 5}
+
+do_execsql_test 4.5.27.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN CURRENT ROW AND CURRENT ROW), 
+         sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN CURRENT ROW AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   2 2   3 3   4 4   3 3   4 4   5 5}
+
+do_execsql_test 4.5.28.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN CURRENT ROW AND CURRENT ROW), 
+  min(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   2 2   3 3   4 4   3 3   4 4   5 5}
+
+do_execsql_test 4.5.28.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN CURRENT ROW AND CURRENT ROW), 
+         sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING)
+  FROM ttt ORDER BY a
+} {1 6   2 9   3 12   2 5   3 7   4 9   3 3   4 4   5 5}
+
+do_execsql_test 4.5.29.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING), 
+  min(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {3 1   4 2   5 3   3 1   4 2   5 3   3 1   4 2   5 3}
+
+do_execsql_test 4.5.29.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING), 
+         sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {6 1   9 2   12 3   5 3   7 5   9 7   3 6   4 9   5 12}
+
+do_execsql_test 4.5.30.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING), 
+  min(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING)
+  FROM ttt ORDER BY a
+} {3 1   4 2   5 3   3 1   4 2   5 3   3 1   4 2   5 3}
+
+do_execsql_test 4.5.30.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING), 
+         sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING)
+  FROM ttt ORDER BY a
+} {6 6   9 9   12 12   5 6   7 9   9 12   3 6   4 9   5 12}
+
+do_execsql_test 4.5.31.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING), 
+  min(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN CURRENT ROW AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {3 1   4 2   5 3   3 2   4 3   5 4   3 3   4 4   5 5}
+
+do_execsql_test 4.5.31.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING), 
+         sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN CURRENT ROW AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {6 1   9 2   12 3   5 2   7 3   9 4   3 3   4 4   5 5}
+
+do_execsql_test 4.5.32.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING), 
+  min(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING)
+  FROM ttt ORDER BY a
+} {3 1   4 2   5 3   3 2   4 3   5 4   3 3   4 4   5 5}
+
+do_execsql_test 4.5.32.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING), 
+         sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING)
+  FROM ttt ORDER BY a
+} {6 6   9 9   12 12   5 5   7 7   9 9   3 3   4 4   5 5}
+
+do_execsql_test 4.5.33.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 3 PRECEDING AND 1 FOLLOWING), 
+  min(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 3 PRECEDING AND 1 FOLLOWING)
+  FROM ttt ORDER BY a
+} {2 1   3 2   4 3   3 1   4 2   5 3   3 1   4 2   5 3}
+
+do_execsql_test 4.5.33.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 3 PRECEDING AND 1 FOLLOWING), 
+         sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 3 PRECEDING AND 1 FOLLOWING)
+  FROM ttt ORDER BY a
+} {3 3   5 5   7 7   6 6   9 9   12 12   6 6   9 9   12 12}
+
+do_execsql_test 4.5.34.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 3 PRECEDING AND 1 FOLLOWING), 
+  min(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 3 PRECEDING AND 2 FOLLOWING)
+  FROM ttt ORDER BY a
+} {2 1   3 2   4 3   3 1   4 2   5 3   3 1   4 2   5 3}
+
+do_execsql_test 4.5.34.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 3 PRECEDING AND 1 FOLLOWING), 
+         sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 3 PRECEDING AND 2 FOLLOWING)
+  FROM ttt ORDER BY a
+} {3 6   5 9   7 12   6 6   9 9   12 12   6 6   9 9   12 12}
+
+do_execsql_test 4.5.35.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 3 PRECEDING AND 1 FOLLOWING), 
+  min(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 1 PRECEDING AND 1 PRECEDING)
+  FROM ttt ORDER BY a
+} {2 {}   3 {}   4 {}   3 1   4 2   5 3   3 2   4 3   5 4}
+
+do_execsql_test 4.5.35.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 3 PRECEDING AND 1 FOLLOWING), 
+         sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 1 PRECEDING AND 1 PRECEDING)
+  FROM ttt ORDER BY a
+} {3 {}   5 {}   7 {}   6 1   9 2   12 3   6 2   9 3   12 4}
+
+do_execsql_test 4.5.36.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 3 PRECEDING AND 1 FOLLOWING), 
+  min(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 0 PRECEDING AND 1 PRECEDING)
+  FROM ttt ORDER BY a
+} {2 {}   3 {}   4 {}   3 {}   4 {}   5 {}   3 {}   4 {}   5 {}}
+
+do_execsql_test 4.5.36.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 3 PRECEDING AND 1 FOLLOWING), 
+         sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 0 PRECEDING AND 1 PRECEDING)
+  FROM ttt ORDER BY a
+} {3 {}   5 {}   7 {}   6 {}   9 {}   12 {}   6 {}   9 {}   12 {}}
+
+do_execsql_test 4.5.37.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 3 PRECEDING AND 1 FOLLOWING), 
+  min(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 1 FOLLOWING AND 500 FOLLOWING)
+  FROM ttt ORDER BY a
+} {2 2   3 3   4 4   3 3   4 4   5 5   3 {}   4 {}   5 {}}
+
+do_execsql_test 4.5.37.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 3 PRECEDING AND 1 FOLLOWING), 
+         sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 1 FOLLOWING AND 500 FOLLOWING)
+  FROM ttt ORDER BY a
+} {3 5   5 7   7 9   6 3   9 4   12 5   6 {}   9 {}   12 {}}
+
+do_execsql_test 4.5.38.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 3 PRECEDING AND 2 FOLLOWING), 
+  min(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 3 PRECEDING AND 1 FOLLOWING)
+  FROM ttt ORDER BY a
+} {3 1   4 2   5 3   3 1   4 2   5 3   3 1   4 2   5 3}
+
+do_execsql_test 4.5.38.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 3 PRECEDING AND 2 FOLLOWING), 
+         sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 3 PRECEDING AND 1 FOLLOWING)
+  FROM ttt ORDER BY a
+} {6 3   9 5   12 7   6 6   9 9   12 12   6 6   9 9   12 12}
+
+do_execsql_test 4.5.39.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 3 PRECEDING AND 2 FOLLOWING), 
+  min(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 3 PRECEDING AND 2 FOLLOWING)
+  FROM ttt ORDER BY a
+} {3 1   4 2   5 3   3 1   4 2   5 3   3 1   4 2   5 3}
+
+do_execsql_test 4.5.39.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 3 PRECEDING AND 2 FOLLOWING), 
+         sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 3 PRECEDING AND 2 FOLLOWING)
+  FROM ttt ORDER BY a
+} {6 6   9 9   12 12   6 6   9 9   12 12   6 6   9 9   12 12}
+
+do_execsql_test 4.5.40.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 3 PRECEDING AND 2 FOLLOWING), 
+  min(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 1 PRECEDING AND 1 PRECEDING)
+  FROM ttt ORDER BY a
+} {3 {}   4 {}   5 {}   3 1   4 2   5 3   3 2   4 3   5 4}
+
+do_execsql_test 4.5.40.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 3 PRECEDING AND 2 FOLLOWING), 
+         sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 1 PRECEDING AND 1 PRECEDING)
+  FROM ttt ORDER BY a
+} {6 {}   9 {}   12 {}   6 1   9 2   12 3   6 2   9 3   12 4}
+
+do_execsql_test 4.5.41.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 3 PRECEDING AND 2 FOLLOWING), 
+  min(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 0 PRECEDING AND 1 PRECEDING)
+  FROM ttt ORDER BY a
+} {3 {}   4 {}   5 {}   3 {}   4 {}   5 {}   3 {}   4 {}   5 {}}
+
+do_execsql_test 4.5.41.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 3 PRECEDING AND 2 FOLLOWING), 
+         sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 0 PRECEDING AND 1 PRECEDING)
+  FROM ttt ORDER BY a
+} {6 {}   9 {}   12 {}   6 {}   9 {}   12 {}   6 {}   9 {}   12 {}}
+
+do_execsql_test 4.5.42.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 3 PRECEDING AND 2 FOLLOWING), 
+  min(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 1 FOLLOWING AND 500 FOLLOWING)
+  FROM ttt ORDER BY a
+} {3 2   4 3   5 4   3 3   4 4   5 5   3 {}   4 {}   5 {}}
+
+do_execsql_test 4.5.42.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 3 PRECEDING AND 2 FOLLOWING), 
+         sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 1 FOLLOWING AND 500 FOLLOWING)
+  FROM ttt ORDER BY a
+} {6 5   9 7   12 9   6 3   9 4   12 5   6 {}   9 {}   12 {}}
+
+do_execsql_test 4.5.43.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 1 PRECEDING AND 1 PRECEDING), 
+  min(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 3 PRECEDING AND 1 FOLLOWING)
+  FROM ttt ORDER BY a
+} {{} 1   {} 2   {} 3   1 1   2 2   3 3   2 1   3 2   4 3}
+
+do_execsql_test 4.5.43.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 1 PRECEDING AND 1 PRECEDING), 
+         sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 3 PRECEDING AND 1 FOLLOWING)
+  FROM ttt ORDER BY a
+} {{} 3   {} 5   {} 7   1 6   2 9   3 12   2 6   3 9   4 12}
+
+do_execsql_test 4.5.44.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 1 PRECEDING AND 1 PRECEDING), 
+  min(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 3 PRECEDING AND 2 FOLLOWING)
+  FROM ttt ORDER BY a
+} {{} 1   {} 2   {} 3   1 1   2 2   3 3   2 1   3 2   4 3}
+
+do_execsql_test 4.5.44.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 1 PRECEDING AND 1 PRECEDING), 
+         sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 3 PRECEDING AND 2 FOLLOWING)
+  FROM ttt ORDER BY a
+} {{} 6   {} 9   {} 12   1 6   2 9   3 12   2 6   3 9   4 12}
+
+do_execsql_test 4.5.45.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 1 PRECEDING AND 1 PRECEDING), 
+  min(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 1 PRECEDING AND 1 PRECEDING)
+  FROM ttt ORDER BY a
+} {{} {}   {} {}   {} {}   1 1   2 2   3 3   2 2   3 3   4 4}
+
+do_execsql_test 4.5.45.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 1 PRECEDING AND 1 PRECEDING), 
+         sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 1 PRECEDING AND 1 PRECEDING)
+  FROM ttt ORDER BY a
+} {{} {}   {} {}   {} {}   1 1   2 2   3 3   2 2   3 3   4 4}
+
+do_execsql_test 4.5.46.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 1 PRECEDING AND 1 PRECEDING), 
+  min(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 0 PRECEDING AND 1 PRECEDING)
+  FROM ttt ORDER BY a
+} {{} {}   {} {}   {} {}   1 {}   2 {}   3 {}   2 {}   3 {}   4 {}}
+
+do_execsql_test 4.5.46.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 1 PRECEDING AND 1 PRECEDING), 
+         sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 0 PRECEDING AND 1 PRECEDING)
+  FROM ttt ORDER BY a
+} {{} {}   {} {}   {} {}   1 {}   2 {}   3 {}   2 {}   3 {}   4 {}}
+
+do_execsql_test 4.5.47.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 1 PRECEDING AND 1 PRECEDING), 
+  min(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 1 FOLLOWING AND 500 FOLLOWING)
+  FROM ttt ORDER BY a
+} {{} 2   {} 3   {} 4   1 3   2 4   3 5   2 {}   3 {}   4 {}}
+
+do_execsql_test 4.5.47.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 1 PRECEDING AND 1 PRECEDING), 
+         sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 1 FOLLOWING AND 500 FOLLOWING)
+  FROM ttt ORDER BY a
+} {{} 5   {} 7   {} 9   1 3   2 4   3 5   2 {}   3 {}   4 {}}
+
+do_execsql_test 4.5.48.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 0 PRECEDING AND 1 PRECEDING), 
+  min(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 3 PRECEDING AND 1 FOLLOWING)
+  FROM ttt ORDER BY a
+} {{} 1   {} 2   {} 3   {} 1   {} 2   {} 3   {} 1   {} 2   {} 3}
+
+do_execsql_test 4.5.48.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 0 PRECEDING AND 1 PRECEDING), 
+         sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 3 PRECEDING AND 1 FOLLOWING)
+  FROM ttt ORDER BY a
+} {{} 3   {} 5   {} 7   {} 6   {} 9   {} 12   {} 6   {} 9   {} 12}
+
+do_execsql_test 4.5.49.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 0 PRECEDING AND 1 PRECEDING), 
+  min(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 3 PRECEDING AND 2 FOLLOWING)
+  FROM ttt ORDER BY a
+} {{} 1   {} 2   {} 3   {} 1   {} 2   {} 3   {} 1   {} 2   {} 3}
+
+do_execsql_test 4.5.49.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 0 PRECEDING AND 1 PRECEDING), 
+         sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 3 PRECEDING AND 2 FOLLOWING)
+  FROM ttt ORDER BY a
+} {{} 6   {} 9   {} 12   {} 6   {} 9   {} 12   {} 6   {} 9   {} 12}
+
+do_execsql_test 4.5.50.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 0 PRECEDING AND 1 PRECEDING), 
+  min(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 1 PRECEDING AND 1 PRECEDING)
+  FROM ttt ORDER BY a
+} {{} {}   {} {}   {} {}   {} 1   {} 2   {} 3   {} 2   {} 3   {} 4}
+
+do_execsql_test 4.5.50.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 0 PRECEDING AND 1 PRECEDING), 
+         sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 1 PRECEDING AND 1 PRECEDING)
+  FROM ttt ORDER BY a
+} {{} {}   {} {}   {} {}   {} 1   {} 2   {} 3   {} 2   {} 3   {} 4}
+
+do_execsql_test 4.5.51.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 0 PRECEDING AND 1 PRECEDING), 
+  min(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 0 PRECEDING AND 1 PRECEDING)
+  FROM ttt ORDER BY a
+} {{} {}   {} {}   {} {}   {} {}   {} {}   {} {}   {} {}   {} {}   {} {}}
+
+do_execsql_test 4.5.51.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 0 PRECEDING AND 1 PRECEDING), 
+         sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 0 PRECEDING AND 1 PRECEDING)
+  FROM ttt ORDER BY a
+} {{} {}   {} {}   {} {}   {} {}   {} {}   {} {}   {} {}   {} {}   {} {}}
+
+do_execsql_test 4.5.52.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 0 PRECEDING AND 1 PRECEDING), 
+  min(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 1 FOLLOWING AND 500 FOLLOWING)
+  FROM ttt ORDER BY a
+} {{} 2   {} 3   {} 4   {} 3   {} 4   {} 5   {} {}   {} {}   {} {}}
+
+do_execsql_test 4.5.52.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 0 PRECEDING AND 1 PRECEDING), 
+         sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 1 FOLLOWING AND 500 FOLLOWING)
+  FROM ttt ORDER BY a
+} {{} 5   {} 7   {} 9   {} 3   {} 4   {} 5   {} {}   {} {}   {} {}}
+
+do_execsql_test 4.5.53.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 1 FOLLOWING AND 500 FOLLOWING), 
+  min(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 3 PRECEDING AND 1 FOLLOWING)
+  FROM ttt ORDER BY a
+} {3 1   4 2   5 3   3 1   4 2   5 3   {} 1   {} 2   {} 3}
+
+do_execsql_test 4.5.53.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 1 FOLLOWING AND 500 FOLLOWING), 
+         sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 3 PRECEDING AND 1 FOLLOWING)
+  FROM ttt ORDER BY a
+} {5 3   7 5   9 7   3 6   4 9   5 12   {} 6   {} 9   {} 12}
+
+do_execsql_test 4.5.54.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 1 FOLLOWING AND 500 FOLLOWING), 
+  min(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 3 PRECEDING AND 2 FOLLOWING)
+  FROM ttt ORDER BY a
+} {3 1   4 2   5 3   3 1   4 2   5 3   {} 1   {} 2   {} 3}
+
+do_execsql_test 4.5.54.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 1 FOLLOWING AND 500 FOLLOWING), 
+         sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 3 PRECEDING AND 2 FOLLOWING)
+  FROM ttt ORDER BY a
+} {5 6   7 9   9 12   3 6   4 9   5 12   {} 6   {} 9   {} 12}
+
+do_execsql_test 4.5.55.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 1 FOLLOWING AND 500 FOLLOWING), 
+  min(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 1 PRECEDING AND 1 PRECEDING)
+  FROM ttt ORDER BY a
+} {3 {}   4 {}   5 {}   3 1   4 2   5 3   {} 2   {} 3   {} 4}
+
+do_execsql_test 4.5.55.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 1 FOLLOWING AND 500 FOLLOWING), 
+         sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 1 PRECEDING AND 1 PRECEDING)
+  FROM ttt ORDER BY a
+} {5 {}   7 {}   9 {}   3 1   4 2   5 3   {} 2   {} 3   {} 4}
+
+do_execsql_test 4.5.56.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 1 FOLLOWING AND 500 FOLLOWING), 
+  min(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 0 PRECEDING AND 1 PRECEDING)
+  FROM ttt ORDER BY a
+} {3 {}   4 {}   5 {}   3 {}   4 {}   5 {}   {} {}   {} {}   {} {}}
+
+do_execsql_test 4.5.56.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 1 FOLLOWING AND 500 FOLLOWING), 
+         sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 0 PRECEDING AND 1 PRECEDING)
+  FROM ttt ORDER BY a
+} {5 {}   7 {}   9 {}   3 {}   4 {}   5 {}   {} {}   {} {}   {} {}}
+
+do_execsql_test 4.5.57.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 1 FOLLOWING AND 500 FOLLOWING), 
+  min(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 1 FOLLOWING AND 500 FOLLOWING)
+  FROM ttt ORDER BY a
+} {3 2   4 3   5 4   3 3   4 4   5 5   {} {}   {} {}   {} {}}
+
+do_execsql_test 4.5.57.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 1 FOLLOWING AND 500 FOLLOWING), 
+         sum(c) OVER (PARTITION BY b ORDER BY a ROWS BETWEEN 1 FOLLOWING AND 500 FOLLOWING)
+  FROM ttt ORDER BY a
+} {5 5   7 7   9 9   3 3   4 4   5 5   {} {}   {} {}   {} {}}
+
+do_execsql_test 4.5.58.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+  min(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   2 1   3 2   4 3   3 1   4 2   5 3}
+
+do_execsql_test 4.5.58.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+         sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   3 3   5 5   7 7   6 6   9 9   12 12}
+
+do_execsql_test 4.5.59.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+  min(c) OVER (PARTITION BY b ORDER BY a DESC RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   2 2   3 3   4 4   3 3   4 4   5 5}
+
+do_execsql_test 4.5.59.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+         sum(c) OVER (PARTITION BY b ORDER BY a DESC RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 6   2 9   3 12   3 5   5 7   7 9   6 3   9 4   12 5}
+
+do_execsql_test 4.5.60.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+  min(c) OVER (PARTITION BY b  RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   2 1   3 2   4 3   3 1   4 2   5 3}
+
+do_execsql_test 4.5.60.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+         sum(c) OVER (PARTITION BY b  RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 6   2 9   3 12   3 6   5 9   7 12   6 6   9 9   12 12}
+
+do_execsql_test 4.5.61.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+  min(c) OVER (PARTITION BY b ORDER BY b, a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   2 1   3 2   4 3   3 1   4 2   5 3}
+
+do_execsql_test 4.5.61.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+         sum(c) OVER (PARTITION BY b ORDER BY b, a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   3 3   5 5   7 7   6 6   9 9   12 12}
+
+do_execsql_test 4.5.62.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a DESC RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+  min(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {3 1   4 2   5 3   3 1   4 2   5 3   3 1   4 2   5 3}
+
+do_execsql_test 4.5.62.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a DESC RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+         sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {6 1   9 2   12 3   5 3   7 5   9 7   3 6   4 9   5 12}
+
+do_execsql_test 4.5.63.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a DESC RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+  min(c) OVER (PARTITION BY b ORDER BY a DESC RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {3 1   4 2   5 3   3 2   4 3   5 4   3 3   4 4   5 5}
+
+do_execsql_test 4.5.63.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a DESC RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+         sum(c) OVER (PARTITION BY b ORDER BY a DESC RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {6 6   9 9   12 12   5 5   7 7   9 9   3 3   4 4   5 5}
+
+do_execsql_test 4.5.64.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a DESC RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+  min(c) OVER (PARTITION BY b  RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {3 1   4 2   5 3   3 1   4 2   5 3   3 1   4 2   5 3}
+
+do_execsql_test 4.5.64.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a DESC RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+         sum(c) OVER (PARTITION BY b  RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {6 6   9 9   12 12   5 6   7 9   9 12   3 6   4 9   5 12}
+
+do_execsql_test 4.5.65.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY a DESC RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+  min(c) OVER (PARTITION BY b ORDER BY b, a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {3 1   4 2   5 3   3 1   4 2   5 3   3 1   4 2   5 3}
+
+do_execsql_test 4.5.65.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY a DESC RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+         sum(c) OVER (PARTITION BY b ORDER BY b, a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {6 1   9 2   12 3   5 3   7 5   9 7   3 6   4 9   5 12}
+
+do_execsql_test 4.5.66.1 {
+  SELECT max(c) OVER (PARTITION BY b  RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+  min(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {3 1   4 2   5 3   3 1   4 2   5 3   3 1   4 2   5 3}
+
+do_execsql_test 4.5.66.2 {
+  SELECT sum(c) OVER (PARTITION BY b  RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+         sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {6 1   9 2   12 3   6 3   9 5   12 7   6 6   9 9   12 12}
+
+do_execsql_test 4.5.67.1 {
+  SELECT max(c) OVER (PARTITION BY b  RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+  min(c) OVER (PARTITION BY b ORDER BY a DESC RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {3 1   4 2   5 3   3 2   4 3   5 4   3 3   4 4   5 5}
+
+do_execsql_test 4.5.67.2 {
+  SELECT sum(c) OVER (PARTITION BY b  RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+         sum(c) OVER (PARTITION BY b ORDER BY a DESC RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {6 6   9 9   12 12   6 5   9 7   12 9   6 3   9 4   12 5}
+
+do_execsql_test 4.5.68.1 {
+  SELECT max(c) OVER (PARTITION BY b  RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+  min(c) OVER (PARTITION BY b  RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {3 1   4 2   5 3   3 1   4 2   5 3   3 1   4 2   5 3}
+
+do_execsql_test 4.5.68.2 {
+  SELECT sum(c) OVER (PARTITION BY b  RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+         sum(c) OVER (PARTITION BY b  RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {6 6   9 9   12 12   6 6   9 9   12 12   6 6   9 9   12 12}
+
+do_execsql_test 4.5.69.1 {
+  SELECT max(c) OVER (PARTITION BY b  RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+  min(c) OVER (PARTITION BY b ORDER BY b, a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {3 1   4 2   5 3   3 1   4 2   5 3   3 1   4 2   5 3}
+
+do_execsql_test 4.5.69.2 {
+  SELECT sum(c) OVER (PARTITION BY b  RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+         sum(c) OVER (PARTITION BY b ORDER BY b, a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {6 1   9 2   12 3   6 3   9 5   12 7   6 6   9 9   12 12}
+
+do_execsql_test 4.5.70.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY b, a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+  min(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   2 1   3 2   4 3   3 1   4 2   5 3}
+
+do_execsql_test 4.5.70.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY b, a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+         sum(c) OVER (PARTITION BY b ORDER BY a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   3 3   5 5   7 7   6 6   9 9   12 12}
+
+do_execsql_test 4.5.71.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY b, a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+  min(c) OVER (PARTITION BY b ORDER BY a DESC RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   2 2   3 3   4 4   3 3   4 4   5 5}
+
+do_execsql_test 4.5.71.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY b, a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+         sum(c) OVER (PARTITION BY b ORDER BY a DESC RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 6   2 9   3 12   3 5   5 7   7 9   6 3   9 4   12 5}
+
+do_execsql_test 4.5.72.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY b, a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+  min(c) OVER (PARTITION BY b  RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   2 1   3 2   4 3   3 1   4 2   5 3}
+
+do_execsql_test 4.5.72.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY b, a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+         sum(c) OVER (PARTITION BY b  RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 6   2 9   3 12   3 6   5 9   7 12   6 6   9 9   12 12}
+
+do_execsql_test 4.5.73.1 {
+  SELECT max(c) OVER (PARTITION BY b ORDER BY b, a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+  min(c) OVER (PARTITION BY b ORDER BY b, a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   2 1   3 2   4 3   3 1   4 2   5 3}
+
+do_execsql_test 4.5.73.2 {
+  SELECT sum(c) OVER (PARTITION BY b ORDER BY b, a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), 
+         sum(c) OVER (PARTITION BY b ORDER BY b, a RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  FROM ttt ORDER BY a
+} {1 1   2 2   3 3   3 3   5 5   7 7   6 6   9 9   12 12}
+
+#==========================================================================
+
+do_execsql_test 7.0 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(x INTEGER, y INTEGER);
+  INSERT INTO t1 VALUES(1, 2);
+  INSERT INTO t1 VALUES(3, 4);
+  INSERT INTO t1 VALUES(5, 6);
+  INSERT INTO t1 VALUES(7, 8);
+  INSERT INTO t1 VALUES(9, 10);
+} {}
+
+do_execsql_test 7.1 {
+  SELECT lead(y) OVER win FROM t1
+  WINDOW win AS (ORDER BY x)
+} {4   6   8   10   {}}
+
+do_execsql_test 7.2 {
+  SELECT lead(y, 2) OVER win FROM t1
+  WINDOW win AS (ORDER BY x)
+} {6   8   10   {}   {}}
+
+do_execsql_test 7.3 {
+  SELECT lead(y, 3, -1) OVER win FROM t1
+  WINDOW win AS (ORDER BY x)
+} {8   10   -1   -1   -1}
+
+do_execsql_test 7.4 {
+  SELECT 
+    lead(y) OVER win, lead(y) OVER win
+  FROM t1
+  WINDOW win AS (ORDER BY x)
+} {4 4   6 6   8 8   10 10   {} {}}
+
+do_execsql_test 7.5 {
+  SELECT 
+    lead(y) OVER win, 
+    lead(y, 2) OVER win, 
+    lead(y, 3, -1) OVER win
+  FROM t1
+  WINDOW win AS (ORDER BY x)
+} {4 6 8   6 8 10   8 10 -1   10 {} -1   {} {} -1}
+
+#==========================================================================
+
+do_execsql_test 8.0 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a INTEGER, b INTEGER, c INTEGER, d INTEGER);
+  INSERT INTO t1 VALUES(1, 2, 3, 4);
+  INSERT INTO t1 VALUES(5, 6, 7, 8);
+  INSERT INTO t1 VALUES(9, 10, 11, 12);
+} {}
+
+do_execsql_test 8.1 {
+  SELECT row_number() OVER win,
+         nth_value(d,2) OVER win,
+         lead(d) OVER win
+  FROM t1
+  WINDOW win AS (ORDER BY a)
+} {1 {} 8   2 8 12   3 8 {}}
+
+do_execsql_test 8.2 {
+  SELECT row_number() OVER win,
+           rank() OVER win,
+           dense_rank() OVER win,
+           ntile(2) OVER win,
+           first_value(d) OVER win,
+           last_value(d) OVER win,
+           nth_value(d,2) OVER win,
+           lead(d) OVER win,
+           lag(d) OVER win,
+           max(d) OVER win,
+           min(d) OVER win
+    FROM t1
+    WINDOW win AS (ORDER BY a)
+} {1 1 1 1 4 4 {} 8 {} 4 4   2 2 2 1 4 8 8 12 4 8 4   3 3 3 2 4 12 8 {} 8 12 4}
+
+#==========================================================================
+
+do_execsql_test 9.0 {
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t2(x INTEGER);
+  INSERT INTO t2 VALUES(1), (1), (1), (4), (4), (6), (7);
+} {}
+
+do_execsql_test 9.1 {
+  SELECT rank() OVER () FROM t2
+} {1   1   1   1   1   1   1}
+
+do_execsql_test 9.2 {
+  SELECT dense_rank() OVER (PARTITION BY x) FROM t2
+} {1   1   1   1   1   1   1}
+
+
+do_test 9.3 {
+  set myres {}
+  foreach r [db eval {SELECT x, percent_rank() OVER (PARTITION BY x ORDER BY x) FROM t2}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 0.0000 1.0000 0.0000 1.0000 0.0000 4.0000 0.0000 4.0000 0.0000 6.0000 0.0000 7.0000 0.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+do_execsql_test 9.4 {
+  SELECT x, rank() OVER (ORDER BY x) FROM t2 ORDER BY 1,2
+} {1 1   1 1   1 1   4 4   4 4   6 6   7 7}
+
+do_execsql_test 9.5 {
+  SELECT DISTINCT x, rank() OVER (ORDER BY x) FROM t2 ORDER BY 1,2
+} {1 1   4 4   6 6   7 7}
+
+
+do_test 9.6 {
+  set myres {}
+  foreach r [db eval {SELECT percent_rank() OVER () FROM t1}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {0.0000 0.0000 0.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 9.7 {
+  set myres {}
+  foreach r [db eval {SELECT cume_dist() OVER () FROM t1}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 1.0000 1.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+do_execsql_test 10.0 {
+  DROP TABLE IF EXISTS t7;
+  CREATE TABLE t7(id INTEGER PRIMARY KEY, a INTEGER, b INTEGER);
+  INSERT INTO t7(id, a, b) VALUES
+    (1, 1, 2), (2, 1, NULL), (3, 1, 4),
+    (4, 3, NULL), (5, 3, 8), (6, 3, 1);
+} {}
+
+do_execsql_test 10.1 {
+  SELECT id, min(b) OVER (PARTITION BY a ORDER BY id) FROM t7;
+} {1 2   2 2   3 2   4 {}   5 8   6 1}
+
+do_execsql_test 10.2 {
+  SELECT id, lead(b, -1) OVER (PARTITION BY a ORDER BY id) FROM t7;
+} {1 {}   2 2   3 {}   4 {}   5 {}   6 8}
+
+do_execsql_test 10.3 {
+  SELECT id, lag(b, -1) OVER (PARTITION BY a ORDER BY id) FROM t7;
+} {1 {}   2 4   3 {}   4 8   5 1   6 {}}
+
+do_execsql_test 11.0 {
+  DROP VIEW IF EXISTS v8;
+  DROP TABLE IF EXISTS t8;
+  CREATE TABLE t8(t INT, total INT);
+  INSERT INTO t8 VALUES(0,2);
+  INSERT INTO t8 VALUES(5,1);
+  INSERT INTO t8 VALUES(10,1);
+} {}
+
+do_execsql_test 11.1 {
+  SELECT NTILE(256) OVER (ORDER BY total) - 1 AS nt FROM t8;
+} {0   1   2}
+
+do_execsql_test 11.2 {
+  CREATE VIEW v8 AS SELECT NTILE(256) OVER (ORDER BY total) - 1 AS nt FROM t8;
+} {}
+
+do_execsql_test 11.3 {
+  SELECT * FROM v8;
+} {0   1   2}
+
+do_execsql_test 11.4 {
+  SELECT * FROM (
+    SELECT NTILE(256) OVER (ORDER BY total) - 1 AS nt FROM t8
+  ) sub;
+} {0   1   2}
+
+do_execsql_test 11.5 {
+  SELECT sum( min(t) ) OVER () FROM t8 GROUP BY total;
+} {5   5}
+
+do_execsql_test 11.5 {
+  SELECT sum( max(t) ) OVER () FROM t8 GROUP BY total;
+} {10   10}
+
+do_execsql_test 11.7 {
+  SELECT sum( min(t) ) OVER () FROM t8;
+} {0}
+
+do_execsql_test 11.8 {
+  SELECT sum( max(t) ) OVER () FROM t8;
+} {10}
+
+do_execsql_test 12.0 {
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t2(a INTEGER);
+  INSERT INTO t2 VALUES(1), (2), (3);
+} {}
+
+do_execsql_test 12.1 {
+  SELECT (SELECT min(a) OVER ()) FROM t2
+} {1   2   3}
+
+
+do_test 12.2 {
+  set myres {}
+  foreach r [db eval {SELECT (SELECT avg(a)) FROM t2 ORDER BY 1}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {2.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+
+do_test 12.3 {
+  set myres {}
+  foreach r [db eval {SELECT 
+    (SELECT avg(a) UNION SELECT min(a) OVER ()) 
+  FROM t2 GROUP BY a
+  ORDER BY 1}] {
+    lappend myres [format %.4f [set r]]
+  }
+  set res2 {1.0000 2.0000 3.0000}
+  set i 0
+  foreach r [set myres] r2 [set res2] {
+    if {[set r]<([set r2]-0.0001) || [set r]>([set r2]+0.0001)} {
+      error "list element [set i] does not match: got=[set r] expected=[set r2]"
+    }
+    incr i
+  }
+  set {} {}
+} {}
+
+finish_test
diff --git a/test/window5.test b/test/window5.test
new file mode 100644
index 0000000000000000000000000000000000000000..890d6704b42aa0aafe71eb9ac852ba1a04a86d32
--- /dev/null
+++ b/test/window5.test
@@ -0,0 +1,96 @@
+# 2018 May 8
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. Specifically,
+# it tests the sqlite3_create_window_function() API.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix window5
+
+ifcapable !windowfunc {
+  finish_test
+  return
+}
+
+proc m_step {ctx val} {
+  lappend ctx $val
+  return $ctx
+}
+proc m_value {ctx} {
+  set lSort [lsort $ctx]
+
+  set nVal [llength $lSort]
+  set n [expr $nVal/2]
+  
+  if {($nVal % 2)==0 && $nVal>0} {
+    set a [lindex $lSort $n]
+    set b [lindex $lSort $n-1]
+    if {($a+$b) % 2} {
+      set ret [expr ($a+$b)/2.0]
+    } else {
+      set ret [expr ($a+$b)/2]
+    }
+  } else {
+    set ret [lindex $lSort $n]
+  }
+  return $ret
+}
+proc m_inverse {ctx val} {
+  set ctx [lrange $ctx 1 end]
+  return $ctx
+}
+proc w_value {ctx} {
+  lsort $ctx
+}
+
+sqlite3_create_window_function db median m_step m_value m_value m_inverse
+sqlite3_create_window_function db win m_step w_value w_value m_inverse
+
+do_test 0.0 {
+  test_create_window_function_misuse db
+} {}
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b);
+  INSERT INTO t1 VALUES(4, 'a');
+  INSERT INTO t1 VALUES(6, 'b');
+  INSERT INTO t1 VALUES(1, 'c');
+  INSERT INTO t1 VALUES(5, 'd');
+  INSERT INTO t1 VALUES(2, 'e');
+  INSERT INTO t1 VALUES(3, 'f');
+}
+
+do_execsql_test 1.1 {
+  SELECT win(a) OVER (ORDER BY b), median(a) OVER (ORDER BY b) FROM t1;
+} {4 4  {4 6} 5  {1 4 6} 4  {1 4 5 6} 4.5  {1 2 4 5 6} 4 {1 2 3 4 5 6} 3.5}
+
+test_create_sumint db
+do_execsql_test 2.0 {
+  SELECT sumint(a) OVER (ORDER BY rowid) FROM t1 ORDER BY rowid;
+} {4 10 11 16 18 21}
+
+do_execsql_test 2.1 {
+  SELECT sumint(a) OVER (ORDER BY rowid ROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING) FROM t1 ORDER BY rowid;
+} {10 11 12 8 10 5}
+
+test_override_sum db
+do_catchsql_test 3.0 {
+  SELECT sum(a) OVER 
+  (ORDER BY b ROWS BETWEEN 1 PRECEDING AND CURRENT ROW) 
+  FROM t1;
+} {1 {sum() may not be used as a window function}}
+do_execsql_test 3.1 {
+  SELECT sum(a) FROM t1;
+} {21}
+
+
+finish_test
diff --git a/test/window6.test b/test/window6.test
new file mode 100644
index 0000000000000000000000000000000000000000..b5e677208f98b11cb61ccf0089440dd5cc2c94d9
--- /dev/null
+++ b/test/window6.test
@@ -0,0 +1,371 @@
+# 2018 May 8
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. Specifically,
+# it tests the sqlite3_create_window_function() API.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix window6
+
+ifcapable !windowfunc {
+  finish_test
+  return
+}
+
+set setup {
+  CREATE TABLE %t1(%x, %y %typename);
+  INSERT INTO %t1 VALUES(1, 'a');
+  INSERT INTO %t1 VALUES(2, 'b');
+  INSERT INTO %t1 VALUES(3, 'c');
+  INSERT INTO %t1 VALUES(4, 'd');
+  INSERT INTO %t1 VALUES(5, 'e');
+}
+
+foreach {tn vars} {
+  1 {}
+  2 { set A(%t1) over }
+  3 { set A(%x)  over }
+  4 { 
+    set A(%alias)   over 
+    set A(%x)       following 
+    set A(%y)       over 
+  }
+  5 { 
+    set A(%t1)      over
+    set A(%x)       following 
+    set A(%y)       preceding 
+    set A(%w)       current 
+    set A(%alias)   filter
+    set A(%typename)  window
+  }
+
+  6 { 
+    set A(%x)       window 
+  }
+} {
+  set A(%t1)    t1
+  set A(%x)     x
+  set A(%y)     y
+  set A(%w)     w
+  set A(%alias) alias
+  set A(%typename) integer
+  eval $vars
+
+  set MAP [array get A]
+  set setup_sql [string map $MAP $setup]
+  reset_db
+  execsql $setup_sql
+
+  do_execsql_test 1.$tn.1 [string map $MAP {
+    SELECT group_concat(%x, '.') OVER (ORDER BY %y) FROM %t1
+  }] {1 1.2 1.2.3 1.2.3.4 1.2.3.4.5}
+
+  do_execsql_test 1.$tn.2 [string map $MAP {
+    SELECT sum(%x) OVER %w FROM %t1 WINDOW %w AS (ORDER BY %y)
+  }] {1 3 6 10 15}
+
+  do_execsql_test 1.$tn.3 [string map $MAP {
+    SELECT sum(%alias.%x) OVER %w FROM %t1 %alias WINDOW %w AS (ORDER BY %y)
+  }] {1 3 6 10 15}
+
+  do_execsql_test 1.$tn.4 [string map $MAP {
+    SELECT sum(%x) %alias FROM %t1
+  }] {15}
+}
+
+
+proc winproc {args} { return "window: $args" }
+db func window winproc
+do_execsql_test 2.0 {
+  SELECT window('hello world');
+} {{window: {hello world}}}
+
+proc wincmp {a b} { string compare $b $a }
+db collate window wincmp
+do_execsql_test 3.0 {
+  CREATE TABLE window(x COLLATE window);
+  INSERT INTO window VALUES('bob'), ('alice'), ('cate');
+  SELECT * FROM window ORDER BY x COLLATE window;
+} {cate bob alice}
+do_execsql_test 3.1 {
+  DROP TABLE window;
+  CREATE TABLE x1(x);
+  INSERT INTO x1 VALUES('bob'), ('alice'), ('cate');
+  CREATE INDEX window ON x1(x COLLATE window);
+  SELECT * FROM x1 ORDER BY x COLLATE window;
+} {cate bob alice}
+
+
+do_execsql_test 4.0 { CREATE TABLE t4(x, y); }
+
+# do_execsql_test 4.1 { PRAGMA parser_trace = 1 }
+do_execsql_test 4.1 { 
+  SELECT * FROM t4 window, t4;
+}
+
+#-------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 5.0 {
+  CREATE TABLE over(x, over);
+  CREATE TABLE window(x, window);
+  INSERT INTO over VALUES(1, 2), (3, 4), (5, 6);
+  INSERT INTO window VALUES(1, 2), (3, 4), (5, 6);
+  SELECT sum(x) over FROM over
+} {9}
+
+do_execsql_test 5.1 {
+  SELECT sum(x) over over FROM over WINDOW over AS ()
+} {9 9 9}
+
+do_execsql_test 5.2 {
+  SELECT sum(over) over over over FROM over over WINDOW over AS (ORDER BY over)
+} {2 6 12}
+
+do_execsql_test 5.3 {
+  SELECT sum(over) over over over FROM over over WINDOW over AS (ORDER BY over);
+} {2 6 12}
+
+do_execsql_test 5.4 {
+  SELECT sum(window) OVER window window FROM window window window window AS (ORDER BY window);
+} {2 6 12}
+
+do_execsql_test 5.5 {
+  SELECT count(*) OVER win FROM over
+  WINDOW win AS (ORDER BY x ROWS BETWEEN +2 FOLLOWING AND +3 FOLLOWING)
+} {1 0 0}
+
+#-------------------------------------------------------------------------
+#
+
+ifcapable !icu {
+  sqlite3_db_config db SQLITE_DBCONFIG_DQS_DML 1
+  do_execsql_test 6.0 {
+    SELECT LIKE('!', '', '!') x WHERE x;
+  } {}
+  do_execsql_test 6.1 {
+    SELECT LIKE("!","","!")""WHeRE"";
+  } {}
+  do_catchsql_test 6.2 {
+    SELECT LIKE("!","","!")""window"";
+  } {1 {near "window": syntax error}}
+}
+
+reset_db 
+do_execsql_test 7.0 {
+  CREATE TABLE t1(x TEXT);
+  CREATE INDEX i1 ON t1(x COLLATE nocase);
+  INSERT INTO t1 VALUES('');
+}
+
+ifcapable !icu {
+  do_execsql_test 7.1 {
+    SELECT count(*) FROM t1 WHERE x LIKE '!' ESCAPE '!';
+  } {0}
+}
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test 8.0 {
+  CREATE TABLE IF NOT EXISTS "sample" (
+      "id" INTEGER NOT NULL PRIMARY KEY, 
+      "counter" INTEGER NOT NULL, 
+      "value" REAL NOT NULL
+  );
+
+  INSERT INTO "sample" (counter, value) 
+  VALUES (1, 10.), (1, 20.), (2, 1.), (2, 3.), (3, 100.);
+}
+
+do_execsql_test 8.1 {
+  SELECT "counter", "value", RANK() OVER w AS "rank" 
+  FROM "sample"
+  WINDOW w AS (PARTITION BY "counter" ORDER BY "value" DESC) 
+  ORDER BY "counter", RANK() OVER w
+} {
+  1 20.0 1   1 10.0 2   2 3.0 1   2 1.0 2  3 100.0 1
+}
+
+do_execsql_test 8.2 {
+  SELECT "counter", "value", SUM("value") OVER 
+  (ORDER BY "id" ROWS 2 PRECEDING) 
+    FROM "sample" 
+  ORDER BY "id"
+} {
+  1 10.0 10.0   1 20.0 30.0   2 1.0 31.0   2 3.0 24.0   3 100.0 104.0
+}
+
+do_execsql_test 8.3 {
+  SELECT SUM("value") OVER 
+  (ORDER BY "id" ROWS BETWEEN 2 PRECEDING AND CURRENT ROW) 
+    FROM "sample" 
+  ORDER BY "id"
+} {
+  10.0   30.0   31.0   24.0   104.0
+}
+
+do_execsql_test 9.0 {
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<5)
+  SELECT x, group_concat(x) OVER (ORDER BY x ROWS 2 PRECEDING)
+  FROM c;
+} {
+  1 1  2 1,2  3 1,2,3  4 2,3,4  5 3,4,5
+}
+#do_catchsql_test 9.1 {
+#  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<5)
+#  SELECT x, group_concat(x) OVER (ORDER BY x RANGE 2 PRECEDING)
+#  FROM c;
+#} {1 {RANGE must use only UNBOUNDED or CURRENT ROW}}
+#
+#do_catchsql_test 9.2 {
+#  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<5)
+#  SELECT x, group_concat(x) OVER (ORDER BY x RANGE BETWEEN UNBOUNDED PRECEDING AND 2 FOLLOWING)
+#  FROM c;
+#} {1 {RANGE must use only UNBOUNDED or CURRENT ROW}}
+
+do_catchsql_test 9.3 {
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<5)
+  SELECT count(DISTINCT x) OVER (ORDER BY x) FROM c;
+} {1 {DISTINCT is not supported for window functions}}
+
+do_catchsql_test 9.4 {
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<5)
+  SELECT count() OVER (ORDER BY x RANGE UNBOUNDED FOLLOWING) FROM c;
+} {1 {near "FOLLOWING": syntax error}}
+
+do_catchsql_test 9.5 {
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<5)
+  SELECT count() OVER (ORDER BY x RANGE BETWEEN UNBOUNDED FOLLOWING AND UNBOUNDED FOLLOWING) FROM c;
+} {1 {near "FOLLOWING": syntax error}}
+
+do_catchsql_test 9.6 {
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<5)
+  SELECT count() OVER (ORDER BY x RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED PRECEDING) FROM c;
+} {1 {near "PRECEDING": syntax error}}
+
+foreach {tn frame} {
+  1 "BETWEEN CURRENT ROW AND 4 PRECEDING"
+  2 "4 FOLLOWING"
+  3 "BETWEEN 4 FOLLOWING AND CURRENT ROW"
+  4 "BETWEEN 4 FOLLOWING AND 2 PRECEDING"
+} {
+  do_catchsql_test 9.7.$tn "
+    WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<5)
+    SELECT count() OVER (
+        ORDER BY x ROWS $frame 
+    ) FROM c;
+  " {1 {unsupported frame specification}}
+}
+
+do_catchsql_test 9.8.1 {
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<5)
+  SELECT count() OVER (
+      ORDER BY x ROWS BETWEEN a PRECEDING AND 2 FOLLOWING
+  ) FROM c;
+} {1 {frame starting offset must be a non-negative integer}}
+do_catchsql_test 9.8.2 {
+  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<5)
+  SELECT count() OVER (
+      ORDER BY x ROWS BETWEEN 2 PRECEDING AND a FOLLOWING
+  ) FROM c;
+} {1 {frame ending offset must be a non-negative integer}}
+
+do_execsql_test 10.0 {
+  WITH t1(a,b) AS (VALUES(1,2))
+  SELECT count() FILTER (where b<>5) OVER w1
+    FROM t1
+    WINDOW w1 AS (ROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING);
+} {1}
+
+foreach {tn stmt} {
+  1 "SELECT nth_value(b, 0) OVER (ORDER BY a) FROM t1"
+  2 "SELECT nth_value(b, -1) OVER (ORDER BY a) FROM t1"
+  3 "SELECT nth_value(b, '4ab') OVER (ORDER BY a) FROM t1"
+  4 "SELECT nth_value(b, NULL) OVER (ORDER BY a) FROM t1"
+  5 "SELECT nth_value(b, 8.5) OVER (ORDER BY a) FROM t1"
+} {
+  do_catchsql_test 10.1.$tn "
+    WITH t1(a,b) AS ( VALUES(1, 2), (2, 3), (3, 4) )
+    $stmt
+  " {1 {second argument to nth_value must be a positive integer}}
+}
+
+foreach {tn stmt res} {
+  1 "SELECT nth_value(b, 1) OVER (ORDER BY a) FROM t1"         {2 2 2}
+  2 "SELECT nth_value(b, 2) OVER (ORDER BY a) FROM t1"         {{} 3 3}
+  3 "SELECT nth_value(b, '2') OVER (ORDER BY a) FROM t1"       {{} 3 3}
+  4 "SELECT nth_value(b, 2.0) OVER (ORDER BY a) FROM t1"       {{} 3 3}
+  5 "SELECT nth_value(b, '2.0') OVER (ORDER BY a) FROM t1"     {{} 3 3}
+  6 "SELECT nth_value(b, 10000000) OVER (ORDER BY a) FROM t1"  {{} {} {}}
+} {
+  do_execsql_test 10.2.$tn "
+    WITH t1(a,b) AS ( VALUES(1, 2), (2, 3), (3, 4) )
+    $stmt
+  " $res
+}
+
+
+#-------------------------------------------------------------------------
+#
+reset_db
+do_execsql_test 11.0 {
+  CREATE TABLE t1(a INT);
+  INSERT INTO t1 VALUES(10),(15),(20),(20),(25),(30),(30),(50);
+  CREATE TABLE t3(x INT, y VARCHAR);
+  INSERT INTO t3(x,y) VALUES(10,'ten'),('15','fifteen'),(30,'thirty');
+}
+
+do_execsql_test 11.1 {
+  SELECT a, (SELECT y FROM t3 WHERE x=a) FROM t1 ORDER BY a;
+} {
+  10 ten 15 fifteen 20 {} 20 {} 25 {} 30 thirty 30 thirty 50 {}
+}
+
+do_execsql_test 11.2 {
+  SELECT a, (SELECT y FROM t3 WHERE x=a), sum(a) OVER (ORDER BY a)
+    FROM t1 ORDER BY a;
+} {
+  10 ten 10   15 fifteen 25   20 {} 65        20 {} 65   
+  25 {} 90    30 thirty 150   30 thirty 150   50 {} 200
+}
+
+do_execsql_test 11.3.1 {
+  SELECT a, sum(a) OVER win FROM t1
+  WINDOW win AS (ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+} {
+  10 10 15 25 20 45 20 65 25 90 30 120 30 150 50 200
+}
+do_execsql_test 11.3.2 {
+  SELECT a, sum(a) OVER win FROM t1
+  WINDOW win AS (ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 0 FOLLOWING)
+} {
+  10 10 15 25 20 45 20 65 25 90 30 120 30 150 50 200
+}
+do_execsql_test 11.3.3 {
+  SELECT a, sum(a) OVER win FROM t1
+  WINDOW win AS (ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND 0 PRECEDING)
+} {
+  10 10 15 25 20 45 20 65 25 90 30 120 30 150 50 200
+}
+
+do_execsql_test 11.4.1 {
+  SELECT y, group_concat(y, '.') OVER win FROM t3
+  WINDOW win AS (
+    ORDER BY y RANGE BETWEEN UNBOUNDED PRECEDING AND 10 PRECEDING
+  );
+} {
+  fifteen fifteen 
+  ten     fifteen.ten 
+  thirty  fifteen.ten.thirty
+}
+
+finish_test
diff --git a/test/window7.tcl b/test/window7.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..56fc60dd7f204d7c39fb6c167a2ec56b548babca
--- /dev/null
+++ b/test/window7.tcl
@@ -0,0 +1,91 @@
+# 2018 May 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname $argv0] pg_common.tcl]
+
+#=========================================================================
+
+start_test window7 "2019 March 01"
+ifcapable !windowfunc
+
+execsql_test 1.0 {
+  DROP TABLE IF EXISTS t3;
+  CREATE TABLE t3(a INTEGER, b INTEGER);
+  INSERT INTO t3 VALUES
+    (1, 1), (2, 2), (3, 3), (4, 4), (5, 5), (6, 6), (7, 7), (8, 8), 
+    (9, 9), (0, 10), (1, 11), (2, 12), (3, 13), (4, 14), (5, 15), (6, 16), 
+    (7, 17), (8, 18), (9, 19), (0, 20), (1, 21), (2, 22), (3, 23), (4, 24), 
+    (5, 25), (6, 26), (7, 27), (8, 28), (9, 29), (0, 30), (1, 31), (2, 32), 
+    (3, 33), (4, 34), (5, 35), (6, 36), (7, 37), (8, 38), (9, 39), (0, 40), 
+    (1, 41), (2, 42), (3, 43), (4, 44), (5, 45), (6, 46), (7, 47), (8, 48), 
+    (9, 49), (0, 50), (1, 51), (2, 52), (3, 53), (4, 54), (5, 55), (6, 56), 
+    (7, 57), (8, 58), (9, 59), (0, 60), (1, 61), (2, 62), (3, 63), (4, 64), 
+    (5, 65), (6, 66), (7, 67), (8, 68), (9, 69), (0, 70), (1, 71), (2, 72), 
+    (3, 73), (4, 74), (5, 75), (6, 76), (7, 77), (8, 78), (9, 79), (0, 80), 
+    (1, 81), (2, 82), (3, 83), (4, 84), (5, 85), (6, 86), (7, 87), (8, 88), 
+    (9, 89), (0, 90), (1, 91), (2, 92), (3, 93), (4, 94), (5, 95), (6, 96), 
+    (7, 97), (8, 98), (9, 99), (0, 100);
+}
+
+execsql_test 1.1 {
+  SELECT a, sum(b) FROM t3 GROUP BY a ORDER BY 1;
+}
+
+execsql_test 1.2 {
+  SELECT a, sum(b) OVER (
+    ORDER BY a GROUPS BETWEEN CURRENT ROW AND CURRENT ROW
+  ) FROM t3 ORDER BY 1;
+}
+
+execsql_test 1.3 {
+  SELECT a, sum(b) OVER (
+    ORDER BY a GROUPS BETWEEN 0 PRECEDING AND 0 FOLLOWING
+  ) FROM t3 ORDER BY 1;
+}
+
+execsql_test 1.4 {
+  SELECT a, sum(b) OVER (
+    ORDER BY a GROUPS BETWEEN 2 PRECEDING AND 2 FOLLOWING
+  ) FROM t3 ORDER BY 1;
+}
+
+execsql_test 1.5 {
+  SELECT a, sum(b) OVER (
+    ORDER BY a RANGE BETWEEN 0 PRECEDING AND 0 FOLLOWING
+  ) FROM t3 ORDER BY 1;
+}
+
+execsql_test 1.6 {
+  SELECT a, sum(b) OVER (
+    ORDER BY a RANGE BETWEEN 2 PRECEDING AND 2 FOLLOWING
+  ) FROM t3 ORDER BY 1;
+}
+
+execsql_test 1.7 {
+  SELECT a, sum(b) OVER (
+    ORDER BY a RANGE BETWEEN 2 PRECEDING AND 1 FOLLOWING
+  ) FROM t3 ORDER BY 1;
+}
+
+execsql_test 1.8.1 {
+  SELECT a, sum(b) OVER (
+    ORDER BY a RANGE BETWEEN 0 PRECEDING AND 1 FOLLOWING
+  ) FROM t3 ORDER BY 1;
+}
+execsql_test 1.8.2 {
+  SELECT a, sum(b) OVER (
+    ORDER BY a DESC RANGE BETWEEN 0 PRECEDING AND 1 FOLLOWING
+  ) FROM t3 ORDER BY 1;
+}
+
+finish_test
+
diff --git a/test/window7.test b/test/window7.test
new file mode 100644
index 0000000000000000000000000000000000000000..441e2b126a9243e1f86ffdc3477e95d0b7868fa4
--- /dev/null
+++ b/test/window7.test
@@ -0,0 +1,186 @@
+# 2019 March 01
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+
+####################################################
+# DO NOT EDIT! THIS FILE IS AUTOMATICALLY GENERATED!
+####################################################
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix window7
+
+ifcapable !windowfunc { finish_test ; return }
+do_execsql_test 1.0 {
+  DROP TABLE IF EXISTS t3;
+  CREATE TABLE t3(a INTEGER, b INTEGER);
+  INSERT INTO t3 VALUES
+    (1, 1), (2, 2), (3, 3), (4, 4), (5, 5), (6, 6), (7, 7), (8, 8), 
+    (9, 9), (0, 10), (1, 11), (2, 12), (3, 13), (4, 14), (5, 15), (6, 16), 
+    (7, 17), (8, 18), (9, 19), (0, 20), (1, 21), (2, 22), (3, 23), (4, 24), 
+    (5, 25), (6, 26), (7, 27), (8, 28), (9, 29), (0, 30), (1, 31), (2, 32), 
+    (3, 33), (4, 34), (5, 35), (6, 36), (7, 37), (8, 38), (9, 39), (0, 40), 
+    (1, 41), (2, 42), (3, 43), (4, 44), (5, 45), (6, 46), (7, 47), (8, 48), 
+    (9, 49), (0, 50), (1, 51), (2, 52), (3, 53), (4, 54), (5, 55), (6, 56), 
+    (7, 57), (8, 58), (9, 59), (0, 60), (1, 61), (2, 62), (3, 63), (4, 64), 
+    (5, 65), (6, 66), (7, 67), (8, 68), (9, 69), (0, 70), (1, 71), (2, 72), 
+    (3, 73), (4, 74), (5, 75), (6, 76), (7, 77), (8, 78), (9, 79), (0, 80), 
+    (1, 81), (2, 82), (3, 83), (4, 84), (5, 85), (6, 86), (7, 87), (8, 88), 
+    (9, 89), (0, 90), (1, 91), (2, 92), (3, 93), (4, 94), (5, 95), (6, 96), 
+    (7, 97), (8, 98), (9, 99), (0, 100);
+} {}
+
+do_execsql_test 1.1 {
+  SELECT a, sum(b) FROM t3 GROUP BY a ORDER BY 1;
+} {0 550   1 460   2 470   3 480   4 490   5 500   6 510   7 520   8 530
+  9 540}
+
+do_execsql_test 1.2 {
+  SELECT a, sum(b) OVER (
+    ORDER BY a GROUPS BETWEEN CURRENT ROW AND CURRENT ROW
+  ) FROM t3 ORDER BY 1;
+} {0 550   0 550   0 550   0 550   0 550   0 550   0 550   0 550   0 550
+  0 550   1 460   1 460   1 460   1 460   1 460   1 460   1 460   1 460
+  1 460   1 460   2 470   2 470   2 470   2 470   2 470   2 470   2 470
+  2 470   2 470   2 470   3 480   3 480   3 480   3 480   3 480   3 480
+  3 480   3 480   3 480   3 480   4 490   4 490   4 490   4 490   4 490
+  4 490   4 490   4 490   4 490   4 490   5 500   5 500   5 500   5 500
+  5 500   5 500   5 500   5 500   5 500   5 500   6 510   6 510   6 510
+  6 510   6 510   6 510   6 510   6 510   6 510   6 510   7 520   7 520
+  7 520   7 520   7 520   7 520   7 520   7 520   7 520   7 520   8 530
+  8 530   8 530   8 530   8 530   8 530   8 530   8 530   8 530   8 530
+  9 540   9 540   9 540   9 540   9 540   9 540   9 540   9 540   9 540
+  9 540}
+
+do_execsql_test 1.3 {
+  SELECT a, sum(b) OVER (
+    ORDER BY a GROUPS BETWEEN 0 PRECEDING AND 0 FOLLOWING
+  ) FROM t3 ORDER BY 1;
+} {0 550   0 550   0 550   0 550   0 550   0 550   0 550   0 550   0 550
+  0 550   1 460   1 460   1 460   1 460   1 460   1 460   1 460   1 460
+  1 460   1 460   2 470   2 470   2 470   2 470   2 470   2 470   2 470
+  2 470   2 470   2 470   3 480   3 480   3 480   3 480   3 480   3 480
+  3 480   3 480   3 480   3 480   4 490   4 490   4 490   4 490   4 490
+  4 490   4 490   4 490   4 490   4 490   5 500   5 500   5 500   5 500
+  5 500   5 500   5 500   5 500   5 500   5 500   6 510   6 510   6 510
+  6 510   6 510   6 510   6 510   6 510   6 510   6 510   7 520   7 520
+  7 520   7 520   7 520   7 520   7 520   7 520   7 520   7 520   8 530
+  8 530   8 530   8 530   8 530   8 530   8 530   8 530   8 530   8 530
+  9 540   9 540   9 540   9 540   9 540   9 540   9 540   9 540   9 540
+  9 540}
+
+do_execsql_test 1.4 {
+  SELECT a, sum(b) OVER (
+    ORDER BY a GROUPS BETWEEN 2 PRECEDING AND 2 FOLLOWING
+  ) FROM t3 ORDER BY 1;
+} {0 1480   0 1480   0 1480   0 1480   0 1480   0 1480   0 1480   0 1480
+  0 1480   0 1480   1 1960   1 1960   1 1960   1 1960   1 1960   1 1960
+  1 1960   1 1960   1 1960   1 1960   2 2450   2 2450   2 2450   2 2450
+  2 2450   2 2450   2 2450   2 2450   2 2450   2 2450   3 2400   3 2400
+  3 2400   3 2400   3 2400   3 2400   3 2400   3 2400   3 2400   3 2400
+  4 2450   4 2450   4 2450   4 2450   4 2450   4 2450   4 2450   4 2450
+  4 2450   4 2450   5 2500   5 2500   5 2500   5 2500   5 2500   5 2500
+  5 2500   5 2500   5 2500   5 2500   6 2550   6 2550   6 2550   6 2550
+  6 2550   6 2550   6 2550   6 2550   6 2550   6 2550   7 2600   7 2600
+  7 2600   7 2600   7 2600   7 2600   7 2600   7 2600   7 2600   7 2600
+  8 2100   8 2100   8 2100   8 2100   8 2100   8 2100   8 2100   8 2100
+  8 2100   8 2100   9 1590   9 1590   9 1590   9 1590   9 1590   9 1590
+  9 1590   9 1590   9 1590   9 1590}
+
+do_execsql_test 1.5 {
+  SELECT a, sum(b) OVER (
+    ORDER BY a RANGE BETWEEN 0 PRECEDING AND 0 FOLLOWING
+  ) FROM t3 ORDER BY 1;
+} {0 550   0 550   0 550   0 550   0 550   0 550   0 550   0 550   0 550
+  0 550   1 460   1 460   1 460   1 460   1 460   1 460   1 460   1 460
+  1 460   1 460   2 470   2 470   2 470   2 470   2 470   2 470   2 470
+  2 470   2 470   2 470   3 480   3 480   3 480   3 480   3 480   3 480
+  3 480   3 480   3 480   3 480   4 490   4 490   4 490   4 490   4 490
+  4 490   4 490   4 490   4 490   4 490   5 500   5 500   5 500   5 500
+  5 500   5 500   5 500   5 500   5 500   5 500   6 510   6 510   6 510
+  6 510   6 510   6 510   6 510   6 510   6 510   6 510   7 520   7 520
+  7 520   7 520   7 520   7 520   7 520   7 520   7 520   7 520   8 530
+  8 530   8 530   8 530   8 530   8 530   8 530   8 530   8 530   8 530
+  9 540   9 540   9 540   9 540   9 540   9 540   9 540   9 540   9 540
+  9 540}
+
+do_execsql_test 1.6 {
+  SELECT a, sum(b) OVER (
+    ORDER BY a RANGE BETWEEN 2 PRECEDING AND 2 FOLLOWING
+  ) FROM t3 ORDER BY 1;
+} {0 1480   0 1480   0 1480   0 1480   0 1480   0 1480   0 1480   0 1480
+  0 1480   0 1480   1 1960   1 1960   1 1960   1 1960   1 1960   1 1960
+  1 1960   1 1960   1 1960   1 1960   2 2450   2 2450   2 2450   2 2450
+  2 2450   2 2450   2 2450   2 2450   2 2450   2 2450   3 2400   3 2400
+  3 2400   3 2400   3 2400   3 2400   3 2400   3 2400   3 2400   3 2400
+  4 2450   4 2450   4 2450   4 2450   4 2450   4 2450   4 2450   4 2450
+  4 2450   4 2450   5 2500   5 2500   5 2500   5 2500   5 2500   5 2500
+  5 2500   5 2500   5 2500   5 2500   6 2550   6 2550   6 2550   6 2550
+  6 2550   6 2550   6 2550   6 2550   6 2550   6 2550   7 2600   7 2600
+  7 2600   7 2600   7 2600   7 2600   7 2600   7 2600   7 2600   7 2600
+  8 2100   8 2100   8 2100   8 2100   8 2100   8 2100   8 2100   8 2100
+  8 2100   8 2100   9 1590   9 1590   9 1590   9 1590   9 1590   9 1590
+  9 1590   9 1590   9 1590   9 1590}
+
+do_execsql_test 1.7 {
+  SELECT a, sum(b) OVER (
+    ORDER BY a RANGE BETWEEN 2 PRECEDING AND 1 FOLLOWING
+  ) FROM t3 ORDER BY 1;
+} {0 1010   0 1010   0 1010   0 1010   0 1010   0 1010   0 1010   0 1010
+  0 1010   0 1010   1 1480   1 1480   1 1480   1 1480   1 1480   1 1480
+  1 1480   1 1480   1 1480   1 1480   2 1960   2 1960   2 1960   2 1960
+  2 1960   2 1960   2 1960   2 1960   2 1960   2 1960   3 1900   3 1900
+  3 1900   3 1900   3 1900   3 1900   3 1900   3 1900   3 1900   3 1900
+  4 1940   4 1940   4 1940   4 1940   4 1940   4 1940   4 1940   4 1940
+  4 1940   4 1940   5 1980   5 1980   5 1980   5 1980   5 1980   5 1980
+  5 1980   5 1980   5 1980   5 1980   6 2020   6 2020   6 2020   6 2020
+  6 2020   6 2020   6 2020   6 2020   6 2020   6 2020   7 2060   7 2060
+  7 2060   7 2060   7 2060   7 2060   7 2060   7 2060   7 2060   7 2060
+  8 2100   8 2100   8 2100   8 2100   8 2100   8 2100   8 2100   8 2100
+  8 2100   8 2100   9 1590   9 1590   9 1590   9 1590   9 1590   9 1590
+  9 1590   9 1590   9 1590   9 1590}
+
+do_execsql_test 1.8.1 {
+  SELECT a, sum(b) OVER (
+    ORDER BY a RANGE BETWEEN 0 PRECEDING AND 1 FOLLOWING
+  ) FROM t3 ORDER BY 1;
+} {0 1010   0 1010   0 1010   0 1010   0 1010   0 1010   0 1010   0 1010
+  0 1010   0 1010   1 930   1 930   1 930   1 930   1 930   1 930   1 930
+  1 930   1 930   1 930   2 950   2 950   2 950   2 950   2 950   2 950
+  2 950   2 950   2 950   2 950   3 970   3 970   3 970   3 970   3 970
+  3 970   3 970   3 970   3 970   3 970   4 990   4 990   4 990   4 990
+  4 990   4 990   4 990   4 990   4 990   4 990   5 1010   5 1010   5 1010
+  5 1010   5 1010   5 1010   5 1010   5 1010   5 1010   5 1010   6 1030
+  6 1030   6 1030   6 1030   6 1030   6 1030   6 1030   6 1030   6 1030
+  6 1030   7 1050   7 1050   7 1050   7 1050   7 1050   7 1050   7 1050
+  7 1050   7 1050   7 1050   8 1070   8 1070   8 1070   8 1070   8 1070
+  8 1070   8 1070   8 1070   8 1070   8 1070   9 540   9 540   9 540   9 540
+  9 540   9 540   9 540   9 540   9 540   9 540}
+
+do_execsql_test 1.8.2 {
+  SELECT a, sum(b) OVER (
+    ORDER BY a DESC RANGE BETWEEN 0 PRECEDING AND 1 FOLLOWING
+  ) FROM t3 ORDER BY 1;
+} {0 550   0 550   0 550   0 550   0 550   0 550   0 550   0 550   0 550
+  0 550   1 1010   1 1010   1 1010   1 1010   1 1010   1 1010   1 1010
+  1 1010   1 1010   1 1010   2 930   2 930   2 930   2 930   2 930   2 930
+  2 930   2 930   2 930   2 930   3 950   3 950   3 950   3 950   3 950
+  3 950   3 950   3 950   3 950   3 950   4 970   4 970   4 970   4 970
+  4 970   4 970   4 970   4 970   4 970   4 970   5 990   5 990   5 990
+  5 990   5 990   5 990   5 990   5 990   5 990   5 990   6 1010   6 1010
+  6 1010   6 1010   6 1010   6 1010   6 1010   6 1010   6 1010   6 1010
+  7 1030   7 1030   7 1030   7 1030   7 1030   7 1030   7 1030   7 1030
+  7 1030   7 1030   8 1050   8 1050   8 1050   8 1050   8 1050   8 1050
+  8 1050   8 1050   8 1050   8 1050   9 1070   9 1070   9 1070   9 1070
+  9 1070   9 1070   9 1070   9 1070   9 1070   9 1070}
+
+finish_test
diff --git a/test/window8.tcl b/test/window8.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..fcb18249ae5f885b9fd63b9d493fc9becfac73ae
--- /dev/null
+++ b/test/window8.tcl
@@ -0,0 +1,557 @@
+# 2018 May 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname $argv0] pg_common.tcl]
+
+#=========================================================================
+
+start_test window8 "2019 March 01"
+ifcapable !windowfunc
+
+execsql_test 1.0 {
+  DROP TABLE IF EXISTS t3;
+  CREATE TABLE t3(a TEXT, b TEXT, c INTEGER);
+  INSERT INTO t3 VALUES
+    ('HH', 'bb', 355), ('CC', 'aa', 158), ('BB', 'aa', 399), 
+    ('FF', 'bb', 938), ('HH', 'aa', 480), ('FF', 'bb', 870), 
+    ('JJ', 'aa', 768), ('JJ', 'aa', 899), ('GG', 'bb', 929), 
+    ('II', 'bb', 421), ('GG', 'bb', 844), ('FF', 'bb', 574), 
+    ('CC', 'bb', 822), ('GG', 'bb', 938), ('BB', 'aa', 660), 
+    ('HH', 'aa', 979), ('BB', 'bb', 792), ('DD', 'aa', 845), 
+    ('JJ', 'bb', 354), ('FF', 'bb', 295), ('JJ', 'aa', 234), 
+    ('BB', 'bb', 840), ('AA', 'aa', 934), ('EE', 'aa', 113), 
+    ('AA', 'bb', 309), ('BB', 'aa', 412), ('AA', 'aa', 911), 
+    ('AA', 'bb', 572), ('II', 'aa', 398), ('II', 'bb', 250), 
+    ('II', 'aa', 652), ('BB', 'bb', 633), ('AA', 'aa', 239), 
+    ('FF', 'aa', 670), ('BB', 'bb', 705), ('HH', 'bb', 963), 
+    ('CC', 'bb', 346), ('II', 'bb', 671), ('BB', 'aa', 247), 
+    ('AA', 'aa', 223), ('GG', 'aa', 480), ('HH', 'aa', 790), 
+    ('FF', 'aa', 208), ('BB', 'bb', 711), ('EE', 'aa', 777), 
+    ('DD', 'bb', 716), ('CC', 'aa', 759), ('CC', 'aa', 430), 
+    ('CC', 'aa', 607), ('DD', 'bb', 794), ('GG', 'aa', 148), 
+    ('GG', 'aa', 634), ('JJ', 'bb', 257), ('DD', 'bb', 959), 
+    ('FF', 'bb', 726), ('BB', 'aa', 762), ('JJ', 'bb', 336), 
+    ('GG', 'aa', 335), ('HH', 'bb', 330), ('GG', 'bb', 160), 
+    ('JJ', 'bb', 839), ('FF', 'aa', 618), ('BB', 'aa', 393), 
+    ('EE', 'bb', 629), ('FF', 'aa', 667), ('AA', 'bb', 870), 
+    ('FF', 'bb', 102), ('JJ', 'aa', 113), ('DD', 'aa', 224), 
+    ('AA', 'bb', 627), ('HH', 'bb', 730), ('II', 'bb', 443), 
+    ('HH', 'bb', 133), ('EE', 'bb', 252), ('II', 'bb', 805), 
+    ('BB', 'bb', 786), ('EE', 'bb', 768), ('HH', 'bb', 683), 
+    ('DD', 'bb', 238), ('DD', 'aa', 256);
+}
+
+foreach {tn frame} {
+  1  { GROUPS BETWEEN UNBOUNDED PRECEDING AND 1 PRECEDING }
+  2  { GROUPS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW }
+  3  { GROUPS BETWEEN UNBOUNDED PRECEDING AND 1 FOLLOWING }
+  4  { GROUPS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING }
+  5  { GROUPS BETWEEN 1 PRECEDING         AND 2 PRECEDING }
+  6  { GROUPS BETWEEN 2 PRECEDING         AND 1 PRECEDING }
+  7  { GROUPS BETWEEN 3 PRECEDING         AND 1 PRECEDING }
+  8  { GROUPS BETWEEN 3 PRECEDING         AND 0 PRECEDING }
+  9  { GROUPS BETWEEN 2 PRECEDING         AND CURRENT ROW }
+  10 { GROUPS BETWEEN 3 PRECEDING         AND 0 FOLLOWING }
+  11 { GROUPS BETWEEN 2 PRECEDING         AND UNBOUNDED FOLLOWING }
+  12 { GROUPS BETWEEN CURRENT ROW         AND 0 FOLLOWING }
+  13 { GROUPS BETWEEN CURRENT ROW         AND 1 FOLLOWING }
+  14 { GROUPS BETWEEN CURRENT ROW         AND 100 FOLLOWING }
+  15 { GROUPS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING }
+  16 { GROUPS BETWEEN 0 FOLLOWING         AND 0 FOLLOWING }
+  17 { GROUPS BETWEEN 1 FOLLOWING         AND 0 FOLLOWING }
+  18 { GROUPS BETWEEN 1 FOLLOWING         AND 5 FOLLOWING }
+  19 { GROUPS BETWEEN 1 FOLLOWING         AND UNBOUNDED FOLLOWING }
+
+} {
+  execsql_test 1.$tn.1 "
+    SELECT a, b, sum(c) OVER (ORDER BY a $frame) FROM t3 ORDER BY 1, 2, 3;
+  "
+  execsql_test 1.$tn.2 "
+    SELECT a, b, sum(c) OVER (ORDER BY a,b $frame) FROM t3 ORDER BY 1, 2, 3;
+  "
+  execsql_test 1.$tn.3 "
+    SELECT a, b, rank() OVER (ORDER BY a $frame) FROM t3 ORDER BY 1, 2, 3;
+  "
+  execsql_test 1.$tn.4 "
+    SELECT a, b, max(c) OVER (ORDER BY a,b $frame) FROM t3 ORDER BY 1, 2, 3;
+  "
+  execsql_test 1.$tn.5 "
+    SELECT a, b, min(c) OVER (ORDER BY a,b $frame) FROM t3 ORDER BY 1, 2, 3;
+  "
+
+  set f2 "$frame EXCLUDE CURRENT ROW"
+
+  execsql_test 1.$tn.6 "
+    SELECT a, b, sum(c) OVER (ORDER BY a $f2) FROM t3 ORDER BY 1, 2, 3;
+  "
+  execsql_test 1.$tn.7 "
+    SELECT a, b, sum(c) OVER (ORDER BY a,b $f2) FROM t3 ORDER BY 1, 2, 3;
+  "
+
+  execsql_test 1.$tn.8 "
+    SELECT a, b, 
+      sum(c) OVER (ORDER BY a $f2),
+      sum(c) OVER (ORDER BY a $frame),
+      sum(c) OVER (ORDER BY a,b $f2),
+      sum(c) OVER (ORDER BY a,b $frame)
+    FROM t3 ORDER BY 1, 2, 3;
+  "
+}
+
+
+foreach {tn ex} {
+  1  { EXCLUDE NO OTHERS }
+  2  { EXCLUDE CURRENT ROW }
+  3  { EXCLUDE GROUP }
+  4  { EXCLUDE TIES }
+} {
+  execsql_test 2.$tn.1 "
+    SELECT row_number() OVER win 
+    FROM t3
+    WINDOW win AS (
+      ORDER BY c, b, a
+      ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING $ex
+    )
+  "
+
+  execsql_test 2.$tn.2 "
+    SELECT nth_value(c, 14) OVER win 
+    FROM t3
+    WINDOW win AS (
+      ORDER BY c, b, a
+      ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING $ex
+    )
+  "
+
+  execsql_test 2.$tn.3 "
+    SELECT min(c) OVER win, max(c) OVER win, sum(c) OVER win FROM t3
+    WINDOW win AS (
+      ORDER BY c, b, a
+      ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW $ex
+    ) ORDER BY a, b, c;
+  "
+}
+
+==========
+
+execsql_test 3.0 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a REAL, b INTEGER);
+  INSERT INTO t1 VALUES
+      (5, 10), (10, 20), (13, 26), (13, 26), 
+      (15, 30), (20, 40), (22,80), (30, 90);
+}
+
+foreach {tn frame} {
+  1 { ORDER BY a RANGE BETWEEN 5 PRECEDING AND 5 FOLLOWING }
+  2 { ORDER BY a RANGE BETWEEN 10 PRECEDING AND 5 PRECEDING }
+  3 { ORDER BY a RANGE BETWEEN 2 FOLLOWING AND 3 FOLLOWING }
+  4 { ORDER BY a DESC RANGE BETWEEN 5 PRECEDING AND 5 FOLLOWING }
+  5 { ORDER BY a DESC RANGE BETWEEN 10 PRECEDING AND 5 PRECEDING }
+  6 { ORDER BY a DESC RANGE BETWEEN 2 FOLLOWING AND 3 FOLLOWING }
+
+  7  { ORDER BY a RANGE BETWEEN 5.1 PRECEDING AND 5.3 FOLLOWING }
+  8  { ORDER BY a RANGE BETWEEN 10.2 PRECEDING AND 5.4 PRECEDING }
+  9  { ORDER BY a RANGE BETWEEN 2.6 FOLLOWING AND 3.5 FOLLOWING }
+  10 { ORDER BY a DESC RANGE BETWEEN 5.7 PRECEDING AND 5.8 FOLLOWING }
+  11 { ORDER BY a DESC RANGE BETWEEN UNBOUNDED PRECEDING AND 5.9 PRECEDING }
+  12 { ORDER BY a DESC RANGE BETWEEN 2.1 FOLLOWING AND UNBOUNDED FOLLOWING }
+  13  { ORDER BY a RANGE 5.1 PRECEDING }
+} {
+  execsql_test 3.$tn "
+    SELECT CAST(a AS INTEGER), sum(b) OVER win FROM t1 WINDOW win AS ($frame)
+  "
+}
+
+==========
+
+execsql_test 4.0 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a INTEGER, b INTEGER);
+  INSERT INTO t1 VALUES
+    (NULL, 1), (NULL, 2), (NULL, 3), (10, 4), (10, 5);
+}
+
+execsql_test 4.1.1 {
+  SELECT sum(b) OVER (
+    ORDER BY a RANGE BETWEEN 5 PRECEDING AND 10 FOLLOWING
+  ) FROM t1 ORDER BY 1;
+}
+execsql_test 4.1.2 {
+  SELECT sum(b) OVER (
+    ORDER BY a DESC RANGE BETWEEN 5 PRECEDING AND 10 FOLLOWING
+  ) FROM t1 ORDER BY 1;
+}
+
+execsql_test 4.2.1 {
+  SELECT sum(b) OVER (
+    ORDER BY a RANGE BETWEEN 5 FOLLOWING AND 10 FOLLOWING
+  ) FROM t1 ORDER BY 1 NULLS FIRST;
+}
+execsql_test 4.2.2 {
+  SELECT sum(b) OVER (
+    ORDER BY a RANGE BETWEEN 5 FOLLOWING AND 10 FOLLOWING
+  ) FROM t1 ORDER BY 1 NULLS LAST;
+}
+
+execsql_test 4.2.3 {
+  SELECT sum(b) OVER (
+    ORDER BY a DESC RANGE BETWEEN 5 FOLLOWING AND 10 FOLLOWING
+  ) FROM t1 ORDER BY 1 NULLS FIRST;
+}
+execsql_test 4.2.4 {
+  SELECT sum(b) OVER (
+    ORDER BY a DESC RANGE BETWEEN 5 FOLLOWING AND 10 FOLLOWING
+  ) FROM t1 ORDER BY 1 NULLS LAST;
+}
+
+execsql_test 4.3.1 {
+  SELECT sum(b) OVER (
+    ORDER BY a NULLS FIRST RANGE BETWEEN UNBOUNDED PRECEDING AND 10 FOLLOWING
+  ) FROM t1 ORDER BY 1 NULLS FIRST;
+}
+execsql_test 4.3.2 {
+  SELECT sum(b) OVER (
+    ORDER BY a NULLS LAST RANGE BETWEEN UNBOUNDED PRECEDING AND 10 FOLLOWING
+  ) FROM t1 ORDER BY 1 NULLS LAST;
+}
+
+execsql_test 4.4.1 {
+  SELECT sum(b) OVER (
+    ORDER BY a NULLS FIRST ROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING
+  ) FROM t1 ORDER BY 1 NULLS FIRST;
+}
+execsql_test 4.4.2 {
+  SELECT sum(b) OVER (
+    ORDER BY a NULLS LAST ROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING
+  ) FROM t1 ORDER BY 1 NULLS LAST;
+}
+
+execsql_test 4.4.3 {
+  SELECT sum(b) OVER (
+    ORDER BY a DESC NULLS LAST ROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING
+  ) FROM t1 ORDER BY 1 NULLS FIRST;
+}
+execsql_test 4.4.4 {
+  SELECT sum(b) OVER (
+    ORDER BY a DESC NULLS LAST ROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING
+  ) FROM t1 ORDER BY 1 NULLS LAST;
+}
+
+execsql_test 4.5.1 {
+  SELECT sum(b) OVER (
+    ORDER BY a ASC  NULLS LAST RANGE BETWEEN UNBOUNDED PRECEDING AND 10 FOLLOWING
+  ) FROM t1 ORDER BY 1 NULLS LAST;
+}
+execsql_test 4.5.2 {
+  SELECT sum(b) OVER (
+    ORDER BY a DESC NULLS FIRST RANGE 
+    BETWEEN UNBOUNDED PRECEDING AND 10 FOLLOWING
+  ) FROM t1 ORDER BY 1 NULLS LAST;
+}
+
+==========
+
+execsql_test 5.0 {
+  INSERT INTO t3 VALUES
+    (NULL, 'bb', 355), (NULL, 'cc', 158), (NULL, 'aa', 399), 
+    ('JJ', NULL, 839), ('FF', NULL, 618), ('BB', NULL, 393), 
+    (NULL, 'bb', 629), (NULL, NULL, 667), (NULL, NULL, 870);
+}
+
+foreach {tn ex} {
+  1  { EXCLUDE NO OTHERS }
+  2  { EXCLUDE CURRENT ROW }
+  3  { EXCLUDE GROUP }
+  4  { EXCLUDE TIES }
+} {
+  foreach {tn2 frame} {
+    1 { RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING }
+    2 { ORDER BY a NULLS FIRST 
+        RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING }
+    3 { PARTITION BY coalesce(a, '') 
+        RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING }
+    4 { ORDER BY a NULLS FIRST GROUPS 6 PRECEDING }
+    5 { ORDER BY c NULLS FIRST RANGE BETWEEN 6 PRECEDING AND 7 FOLLOWING }
+    6 { ORDER BY c NULLS FIRST RANGE BETWEEN 0 PRECEDING AND 0 FOLLOWING }
+    7 { ORDER BY c NULLS FIRST, b NULLS FIRST, a NULLS FIRST
+        ROWS BETWEEN 6 PRECEDING AND UNBOUNDED FOLLOWING }
+
+    8 { RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING }
+    9 { ORDER BY a NULLS LAST 
+        RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING }
+   10 { PARTITION BY coalesce(a, '') 
+        RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING }
+   11 { ORDER BY a NULLS LAST GROUPS 6 PRECEDING }
+   12 { ORDER BY c NULLS LAST RANGE BETWEEN 6 PRECEDING AND 7 FOLLOWING }
+   13 { ORDER BY c NULLS LAST RANGE BETWEEN 0 PRECEDING AND 0 FOLLOWING }
+   14 { ORDER BY c NULLS LAST, b NULLS LAST, a NULLS LAST
+        ROWS BETWEEN 6 PRECEDING AND UNBOUNDED FOLLOWING }
+  } {
+    execsql_test 5.$tn.$tn2.1 "
+      SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS ( $frame $ex )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+    "
+
+    execsql_test 5.$tn.$tn2.2 "
+      SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS ( $frame $ex )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+    "
+  }
+}
+
+==========
+
+execsql_test 6.0 {
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t2(a TEXT, b INTEGER);
+  INSERT INTO t2 VALUES('A', NULL);
+  INSERT INTO t2 VALUES('B', NULL);
+  INSERT INTO t2 VALUES('C', 1);
+}
+
+execsql_test 6.1 {
+  SELECT string_agg(a, '.') OVER (
+    ORDER BY b NULLS FIRST RANGE BETWEEN 7 PRECEDING AND 2 PRECEDING
+  )
+  FROM t2
+}
+
+execsql_test 6.2 {
+  SELECT string_agg(a, '.') OVER (
+    ORDER BY b DESC NULLS LAST RANGE BETWEEN 7 PRECEDING AND 2 PRECEDING
+  )
+  FROM t2
+}
+
+==========
+
+execsql_test 7.0 {
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t2(a INTEGER, b INTEGER);
+
+  INSERT INTO t2 VALUES(1, 65);
+  INSERT INTO t2 VALUES(2, NULL);
+  INSERT INTO t2 VALUES(3, NULL);
+  INSERT INTO t2 VALUES(4, NULL);
+  INSERT INTO t2 VALUES(5, 66);
+  INSERT INTO t2 VALUES(6, 67);
+}
+
+foreach {tn f ex} {
+  1 sum ""
+  2 min ""
+  3 sum "EXCLUDE CURRENT ROW"
+  4 max "EXCLUDE CURRENT ROW"
+} {
+execsql_test 7.$tn.1 "
+  SELECT $f (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS LAST RANGE BETWEEN 6 FOLLOWING AND UNBOUNDED FOLLOWING
+  );
+"
+execsql_test 7.$tn.2 "
+  SELECT $f (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS LAST RANGE BETWEEN 1 PRECEDING AND 2 PRECEDING
+  );
+"
+execsql_test 7.$tn.3 "
+  SELECT $f (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS LAST RANGE BETWEEN 2 FOLLOWING AND 1 FOLLOWING
+  );
+"
+execsql_test 7.$tn.4 "
+  SELECT $f (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS FIRST RANGE BETWEEN 1 PRECEDING AND 2 PRECEDING
+  );
+"
+execsql_test 7.$tn.5 "
+  SELECT $f (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS FIRST RANGE BETWEEN 2 FOLLOWING AND 1 FOLLOWING
+  );
+"
+
+execsql_test 7.$tn.6 "
+  SELECT $f (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS LAST RANGE BETWEEN 1000 PRECEDING AND 2 PRECEDING
+  );
+"
+execsql_test 7.$tn.7 "
+  SELECT $f (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS LAST RANGE BETWEEN 2000 FOLLOWING AND 1000 FOLLOWING
+  );
+"
+execsql_test 7.$tn.8 "
+  SELECT $f (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS FIRST RANGE BETWEEN 1000 PRECEDING AND 2000 PRECEDING
+  );
+"
+execsql_test 7.$tn.9 "
+  SELECT $f (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS FIRST RANGE BETWEEN 2000 FOLLOWING AND 1000 FOLLOWING
+  );
+"
+}
+
+==========
+
+execsql_test 8.0 {
+  DROP TABLE IF EXISTS tx;
+  CREATE TABLE tx(a INTEGER PRIMARY KEY);
+  INSERT INTO tx VALUES(1), (2), (3), (4), (5), (6);
+
+  DROP TABLE IF EXISTS map;
+  CREATE TABLE map(v INTEGER PRIMARY KEY, t TEXT);
+  INSERT INTO map VALUES
+    (1, 'odd'), (2, 'even'), (3, 'odd'), 
+    (4, 'even'), (5, 'odd'), (6, 'even');
+}
+
+execsql_test 8.1 {
+  SELECT sum(a) OVER (
+    PARTITION BY (
+      SELECT t FROM map WHERE v=a
+    ) ORDER BY a
+  ) FROM tx;
+}
+
+execsql_test 8.2 {
+  SELECT sum(a) OVER win FROM tx
+  WINDOW win AS (
+    PARTITION BY (
+      SELECT t FROM map WHERE v=a
+    ) ORDER BY a
+  );
+}
+
+execsql_test 8.3 {
+  WITH map2 AS (
+    SELECT * FROM map
+  )
+  SELECT sum(a) OVER (
+    PARTITION BY (
+      SELECT t FROM map2 WHERE v=a
+    ) ORDER BY a
+  ) FROM tx;
+}
+
+execsql_test 8.4 {
+  WITH map2 AS (
+    SELECT * FROM map
+  )
+  SELECT sum(a) OVER win FROM tx
+  WINDOW win AS (
+    PARTITION BY (
+      SELECT t FROM map2 WHERE v=a
+    ) ORDER BY a
+  );
+}
+
+==========
+
+execsql_test 9.1 {
+  DROP TABLE IF EXISTS t1;
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t1(a INTEGER);
+  CREATE TABLE t2(y INTEGER);
+}
+
+execsql_test 9.2 {
+  SELECT (
+    SELECT max(a) OVER ( ORDER BY (SELECT sum(a) FROM t1) )
+         + min(a) OVER() 
+  )
+  FROM t1
+}
+
+==========
+
+execsql_test 10.0 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a INTEGER, b INTEGER);
+  INSERT INTO t1 VALUES (10, 1), 
+                        (20, -1), 
+                        (5, 2), 
+                        (15, 0), 
+                        (25, 3);
+}
+
+execsql_test 10.1 {
+  SELECT 
+    a, b, MIN(a) FILTER(WHERE b > 0) OVER win 
+    FROM t1
+    WINDOW win AS (ORDER BY a ROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING);
+}
+
+execsql_test 10.2 {
+  SELECT 
+    a, b, MIN(a) FILTER(WHERE b > 0) OVER win 
+    FROM t1
+    WINDOW win AS ();
+}
+
+execsql_test 10.3 {
+  SELECT 
+    a, b, MIN(a) FILTER(WHERE b > 0) OVER win 
+    FROM t1
+    WINDOW win AS (ORDER BY a);
+}
+
+execsql_test 10.4 {
+  SELECT 
+    a, b, MIN(a) OVER win 
+    FROM t1
+    WINDOW win AS (ORDER BY a ROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING);
+}
+
+==========
+
+execsql_test 11.0 {
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t2(a INTEGER, b INTEGER);
+  INSERT INTO t2 VALUES(1, 12);
+  INSERT INTO t2 VALUES(2, 10);
+  INSERT INTO t2 VALUES(3, 15);
+  INSERT INTO t2 VALUES(4, 22);
+  INSERT INTO t2 VALUES(5,  1);
+  INSERT INTO t2 VALUES(6,  4);
+  INSERT INTO t2 VALUES(7,  7);
+  INSERT INTO t2 VALUES(8,  6);
+  INSERT INTO t2 VALUES(9, 22);
+  INSERT INTO t2 VALUES(10, 2);
+}
+
+execsql_test 11.1 {
+  SELECT a, min(b) FILTER (WHERE a%2 != 0) OVER win
+  FROM t2
+  WINDOW win AS (ORDER BY a ROWS BETWEEN 2 PRECEDING AND 2 FOLLOWING);
+}
+
+finish_test
+
+
diff --git a/test/window8.test b/test/window8.test
new file mode 100644
index 0000000000000000000000000000000000000000..b1b28f1c2f6f19ec16c8be1cd66f2e77c75c2103
--- /dev/null
+++ b/test/window8.test
@@ -0,0 +1,6606 @@
+# 2019 March 01
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+
+####################################################
+# DO NOT EDIT! THIS FILE IS AUTOMATICALLY GENERATED!
+####################################################
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix window8
+
+ifcapable !windowfunc { finish_test ; return }
+do_execsql_test 1.0 {
+  DROP TABLE IF EXISTS t3;
+  CREATE TABLE t3(a TEXT, b TEXT, c INTEGER);
+  INSERT INTO t3 VALUES
+    ('HH', 'bb', 355), ('CC', 'aa', 158), ('BB', 'aa', 399), 
+    ('FF', 'bb', 938), ('HH', 'aa', 480), ('FF', 'bb', 870), 
+    ('JJ', 'aa', 768), ('JJ', 'aa', 899), ('GG', 'bb', 929), 
+    ('II', 'bb', 421), ('GG', 'bb', 844), ('FF', 'bb', 574), 
+    ('CC', 'bb', 822), ('GG', 'bb', 938), ('BB', 'aa', 660), 
+    ('HH', 'aa', 979), ('BB', 'bb', 792), ('DD', 'aa', 845), 
+    ('JJ', 'bb', 354), ('FF', 'bb', 295), ('JJ', 'aa', 234), 
+    ('BB', 'bb', 840), ('AA', 'aa', 934), ('EE', 'aa', 113), 
+    ('AA', 'bb', 309), ('BB', 'aa', 412), ('AA', 'aa', 911), 
+    ('AA', 'bb', 572), ('II', 'aa', 398), ('II', 'bb', 250), 
+    ('II', 'aa', 652), ('BB', 'bb', 633), ('AA', 'aa', 239), 
+    ('FF', 'aa', 670), ('BB', 'bb', 705), ('HH', 'bb', 963), 
+    ('CC', 'bb', 346), ('II', 'bb', 671), ('BB', 'aa', 247), 
+    ('AA', 'aa', 223), ('GG', 'aa', 480), ('HH', 'aa', 790), 
+    ('FF', 'aa', 208), ('BB', 'bb', 711), ('EE', 'aa', 777), 
+    ('DD', 'bb', 716), ('CC', 'aa', 759), ('CC', 'aa', 430), 
+    ('CC', 'aa', 607), ('DD', 'bb', 794), ('GG', 'aa', 148), 
+    ('GG', 'aa', 634), ('JJ', 'bb', 257), ('DD', 'bb', 959), 
+    ('FF', 'bb', 726), ('BB', 'aa', 762), ('JJ', 'bb', 336), 
+    ('GG', 'aa', 335), ('HH', 'bb', 330), ('GG', 'bb', 160), 
+    ('JJ', 'bb', 839), ('FF', 'aa', 618), ('BB', 'aa', 393), 
+    ('EE', 'bb', 629), ('FF', 'aa', 667), ('AA', 'bb', 870), 
+    ('FF', 'bb', 102), ('JJ', 'aa', 113), ('DD', 'aa', 224), 
+    ('AA', 'bb', 627), ('HH', 'bb', 730), ('II', 'bb', 443), 
+    ('HH', 'bb', 133), ('EE', 'bb', 252), ('II', 'bb', 805), 
+    ('BB', 'bb', 786), ('EE', 'bb', 768), ('HH', 'bb', 683), 
+    ('DD', 'bb', 238), ('DD', 'aa', 256);
+} {}
+
+do_execsql_test 1.1.1 {
+  SELECT a, b, sum(c) OVER (ORDER BY a  GROUPS BETWEEN UNBOUNDED PRECEDING AND 1 PRECEDING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa {}   AA aa {}   AA aa {}   AA aa {}   AA bb {}   AA bb {}   AA bb {}
+  AA bb {}   BB aa 4685   BB aa 4685   BB aa 4685   BB aa 4685   BB aa 4685
+  BB aa 4685   BB bb 4685   BB bb 4685   BB bb 4685   BB bb 4685   BB bb 4685
+  BB bb 4685   CC aa 12025   CC aa 12025   CC aa 12025   CC aa 12025
+  CC bb 12025   CC bb 12025   DD aa 15147   DD aa 15147   DD aa 15147
+  DD bb 15147   DD bb 15147   DD bb 15147   DD bb 15147   EE aa 19179
+  EE aa 19179   EE bb 19179   EE bb 19179   EE bb 19179   FF aa 21718
+  FF aa 21718   FF aa 21718   FF aa 21718   FF bb 21718   FF bb 21718
+  FF bb 21718   FF bb 21718   FF bb 21718   FF bb 21718   GG aa 27386
+  GG aa 27386   GG aa 27386   GG aa 27386   GG bb 27386   GG bb 27386
+  GG bb 27386   GG bb 27386   HH aa 31854   HH aa 31854   HH aa 31854
+  HH bb 31854   HH bb 31854   HH bb 31854   HH bb 31854   HH bb 31854
+  HH bb 31854   II aa 37297   II aa 37297   II bb 37297   II bb 37297
+  II bb 37297   II bb 37297   II bb 37297   JJ aa 40937   JJ aa 40937
+  JJ aa 40937   JJ aa 40937   JJ bb 40937   JJ bb 40937   JJ bb 40937
+  JJ bb 40937}
+
+do_execsql_test 1.1.2 {
+  SELECT a, b, sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN UNBOUNDED PRECEDING AND 1 PRECEDING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa {}   AA aa {}   AA aa {}   AA aa {}   AA bb 2307   AA bb 2307
+  AA bb 2307   AA bb 2307   BB aa 4685   BB aa 4685   BB aa 4685   BB aa 4685
+  BB aa 4685   BB aa 4685   BB bb 7558   BB bb 7558   BB bb 7558   BB bb 7558
+  BB bb 7558   BB bb 7558   CC aa 12025   CC aa 12025   CC aa 12025
+  CC aa 12025   CC bb 13979   CC bb 13979   DD aa 15147   DD aa 15147
+  DD aa 15147   DD bb 16472   DD bb 16472   DD bb 16472   DD bb 16472
+  EE aa 19179   EE aa 19179   EE bb 20069   EE bb 20069   EE bb 20069
+  FF aa 21718   FF aa 21718   FF aa 21718   FF aa 21718   FF bb 23881
+  FF bb 23881   FF bb 23881   FF bb 23881   FF bb 23881   FF bb 23881
+  GG aa 27386   GG aa 27386   GG aa 27386   GG aa 27386   GG bb 28983
+  GG bb 28983   GG bb 28983   GG bb 28983   HH aa 31854   HH aa 31854
+  HH aa 31854   HH bb 34103   HH bb 34103   HH bb 34103   HH bb 34103
+  HH bb 34103   HH bb 34103   II aa 37297   II aa 37297   II bb 38347
+  II bb 38347   II bb 38347   II bb 38347   II bb 38347   JJ aa 40937
+  JJ aa 40937   JJ aa 40937   JJ aa 40937   JJ bb 42951   JJ bb 42951
+  JJ bb 42951   JJ bb 42951}
+
+do_execsql_test 1.1.3 {
+  SELECT a, b, rank() OVER (ORDER BY a  GROUPS BETWEEN UNBOUNDED PRECEDING AND 1 PRECEDING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 1   AA aa 1   AA aa 1   AA aa 1   AA bb 1   AA bb 1   AA bb 1
+  AA bb 1   BB aa 9   BB aa 9   BB aa 9   BB aa 9   BB aa 9   BB aa 9
+  BB bb 9   BB bb 9   BB bb 9   BB bb 9   BB bb 9   BB bb 9   CC aa 21
+  CC aa 21   CC aa 21   CC aa 21   CC bb 21   CC bb 21   DD aa 27   DD aa 27
+  DD aa 27   DD bb 27   DD bb 27   DD bb 27   DD bb 27   EE aa 34   EE aa 34
+  EE bb 34   EE bb 34   EE bb 34   FF aa 39   FF aa 39   FF aa 39   FF aa 39
+  FF bb 39   FF bb 39   FF bb 39   FF bb 39   FF bb 39   FF bb 39   GG aa 49
+  GG aa 49   GG aa 49   GG aa 49   GG bb 49   GG bb 49   GG bb 49   GG bb 49
+  HH aa 57   HH aa 57   HH aa 57   HH bb 57   HH bb 57   HH bb 57   HH bb 57
+  HH bb 57   HH bb 57   II aa 66   II aa 66   II bb 66   II bb 66   II bb 66
+  II bb 66   II bb 66   JJ aa 73   JJ aa 73   JJ aa 73   JJ aa 73   JJ bb 73
+  JJ bb 73   JJ bb 73   JJ bb 73}
+
+do_execsql_test 1.1.4 {
+  SELECT a, b, max(c) OVER (ORDER BY a,b  GROUPS BETWEEN UNBOUNDED PRECEDING AND 1 PRECEDING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa {}   AA aa {}   AA aa {}   AA aa {}   AA bb 934   AA bb 934
+  AA bb 934   AA bb 934   BB aa 934   BB aa 934   BB aa 934   BB aa 934
+  BB aa 934   BB aa 934   BB bb 934   BB bb 934   BB bb 934   BB bb 934
+  BB bb 934   BB bb 934   CC aa 934   CC aa 934   CC aa 934   CC aa 934
+  CC bb 934   CC bb 934   DD aa 934   DD aa 934   DD aa 934   DD bb 934
+  DD bb 934   DD bb 934   DD bb 934   EE aa 959   EE aa 959   EE bb 959
+  EE bb 959   EE bb 959   FF aa 959   FF aa 959   FF aa 959   FF aa 959
+  FF bb 959   FF bb 959   FF bb 959   FF bb 959   FF bb 959   FF bb 959
+  GG aa 959   GG aa 959   GG aa 959   GG aa 959   GG bb 959   GG bb 959
+  GG bb 959   GG bb 959   HH aa 959   HH aa 959   HH aa 959   HH bb 979
+  HH bb 979   HH bb 979   HH bb 979   HH bb 979   HH bb 979   II aa 979
+  II aa 979   II bb 979   II bb 979   II bb 979   II bb 979   II bb 979
+  JJ aa 979   JJ aa 979   JJ aa 979   JJ aa 979   JJ bb 979   JJ bb 979
+  JJ bb 979   JJ bb 979}
+
+do_execsql_test 1.1.5 {
+  SELECT a, b, min(c) OVER (ORDER BY a,b  GROUPS BETWEEN UNBOUNDED PRECEDING AND 1 PRECEDING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa {}   AA aa {}   AA aa {}   AA aa {}   AA bb 223   AA bb 223
+  AA bb 223   AA bb 223   BB aa 223   BB aa 223   BB aa 223   BB aa 223
+  BB aa 223   BB aa 223   BB bb 223   BB bb 223   BB bb 223   BB bb 223
+  BB bb 223   BB bb 223   CC aa 223   CC aa 223   CC aa 223   CC aa 223
+  CC bb 158   CC bb 158   DD aa 158   DD aa 158   DD aa 158   DD bb 158
+  DD bb 158   DD bb 158   DD bb 158   EE aa 158   EE aa 158   EE bb 113
+  EE bb 113   EE bb 113   FF aa 113   FF aa 113   FF aa 113   FF aa 113
+  FF bb 113   FF bb 113   FF bb 113   FF bb 113   FF bb 113   FF bb 113
+  GG aa 102   GG aa 102   GG aa 102   GG aa 102   GG bb 102   GG bb 102
+  GG bb 102   GG bb 102   HH aa 102   HH aa 102   HH aa 102   HH bb 102
+  HH bb 102   HH bb 102   HH bb 102   HH bb 102   HH bb 102   II aa 102
+  II aa 102   II bb 102   II bb 102   II bb 102   II bb 102   II bb 102
+  JJ aa 102   JJ aa 102   JJ aa 102   JJ aa 102   JJ bb 102   JJ bb 102
+  JJ bb 102   JJ bb 102}
+
+do_execsql_test 1.1.6 {
+  SELECT a, b, sum(c) OVER (ORDER BY a  GROUPS BETWEEN UNBOUNDED PRECEDING AND 1 PRECEDING  EXCLUDE CURRENT ROW) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa {}   AA aa {}   AA aa {}   AA aa {}   AA bb {}   AA bb {}   AA bb {}
+  AA bb {}   BB aa 4685   BB aa 4685   BB aa 4685   BB aa 4685   BB aa 4685
+  BB aa 4685   BB bb 4685   BB bb 4685   BB bb 4685   BB bb 4685   BB bb 4685
+  BB bb 4685   CC aa 12025   CC aa 12025   CC aa 12025   CC aa 12025
+  CC bb 12025   CC bb 12025   DD aa 15147   DD aa 15147   DD aa 15147
+  DD bb 15147   DD bb 15147   DD bb 15147   DD bb 15147   EE aa 19179
+  EE aa 19179   EE bb 19179   EE bb 19179   EE bb 19179   FF aa 21718
+  FF aa 21718   FF aa 21718   FF aa 21718   FF bb 21718   FF bb 21718
+  FF bb 21718   FF bb 21718   FF bb 21718   FF bb 21718   GG aa 27386
+  GG aa 27386   GG aa 27386   GG aa 27386   GG bb 27386   GG bb 27386
+  GG bb 27386   GG bb 27386   HH aa 31854   HH aa 31854   HH aa 31854
+  HH bb 31854   HH bb 31854   HH bb 31854   HH bb 31854   HH bb 31854
+  HH bb 31854   II aa 37297   II aa 37297   II bb 37297   II bb 37297
+  II bb 37297   II bb 37297   II bb 37297   JJ aa 40937   JJ aa 40937
+  JJ aa 40937   JJ aa 40937   JJ bb 40937   JJ bb 40937   JJ bb 40937
+  JJ bb 40937}
+
+do_execsql_test 1.1.7 {
+  SELECT a, b, sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN UNBOUNDED PRECEDING AND 1 PRECEDING  EXCLUDE CURRENT ROW) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa {}   AA aa {}   AA aa {}   AA aa {}   AA bb 2307   AA bb 2307
+  AA bb 2307   AA bb 2307   BB aa 4685   BB aa 4685   BB aa 4685   BB aa 4685
+  BB aa 4685   BB aa 4685   BB bb 7558   BB bb 7558   BB bb 7558   BB bb 7558
+  BB bb 7558   BB bb 7558   CC aa 12025   CC aa 12025   CC aa 12025
+  CC aa 12025   CC bb 13979   CC bb 13979   DD aa 15147   DD aa 15147
+  DD aa 15147   DD bb 16472   DD bb 16472   DD bb 16472   DD bb 16472
+  EE aa 19179   EE aa 19179   EE bb 20069   EE bb 20069   EE bb 20069
+  FF aa 21718   FF aa 21718   FF aa 21718   FF aa 21718   FF bb 23881
+  FF bb 23881   FF bb 23881   FF bb 23881   FF bb 23881   FF bb 23881
+  GG aa 27386   GG aa 27386   GG aa 27386   GG aa 27386   GG bb 28983
+  GG bb 28983   GG bb 28983   GG bb 28983   HH aa 31854   HH aa 31854
+  HH aa 31854   HH bb 34103   HH bb 34103   HH bb 34103   HH bb 34103
+  HH bb 34103   HH bb 34103   II aa 37297   II aa 37297   II bb 38347
+  II bb 38347   II bb 38347   II bb 38347   II bb 38347   JJ aa 40937
+  JJ aa 40937   JJ aa 40937   JJ aa 40937   JJ bb 42951   JJ bb 42951
+  JJ bb 42951   JJ bb 42951}
+
+do_execsql_test 1.1.8 {
+  SELECT a, b, 
+      sum(c) OVER (ORDER BY a  GROUPS BETWEEN UNBOUNDED PRECEDING AND 1 PRECEDING  EXCLUDE CURRENT ROW),
+      sum(c) OVER (ORDER BY a  GROUPS BETWEEN UNBOUNDED PRECEDING AND 1 PRECEDING ),
+      sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN UNBOUNDED PRECEDING AND 1 PRECEDING  EXCLUDE CURRENT ROW),
+      sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN UNBOUNDED PRECEDING AND 1 PRECEDING )
+    FROM t3 ORDER BY 1, 2, 3;
+} {AA aa {} {} {} {}   AA aa {} {} {} {}   AA aa {} {} {} {}
+  AA aa {} {} {} {}   AA bb {} {} 2307 2307   AA bb {} {} 2307 2307
+  AA bb {} {} 2307 2307   AA bb {} {} 2307 2307   BB aa 4685 4685 4685 4685
+  BB aa 4685 4685 4685 4685   BB aa 4685 4685 4685 4685
+  BB aa 4685 4685 4685 4685   BB aa 4685 4685 4685 4685
+  BB aa 4685 4685 4685 4685   BB bb 4685 4685 7558 7558
+  BB bb 4685 4685 7558 7558   BB bb 4685 4685 7558 7558
+  BB bb 4685 4685 7558 7558   BB bb 4685 4685 7558 7558
+  BB bb 4685 4685 7558 7558   CC aa 12025 12025 12025 12025
+  CC aa 12025 12025 12025 12025   CC aa 12025 12025 12025 12025
+  CC aa 12025 12025 12025 12025   CC bb 12025 12025 13979 13979
+  CC bb 12025 12025 13979 13979   DD aa 15147 15147 15147 15147
+  DD aa 15147 15147 15147 15147   DD aa 15147 15147 15147 15147
+  DD bb 15147 15147 16472 16472   DD bb 15147 15147 16472 16472
+  DD bb 15147 15147 16472 16472   DD bb 15147 15147 16472 16472
+  EE aa 19179 19179 19179 19179   EE aa 19179 19179 19179 19179
+  EE bb 19179 19179 20069 20069   EE bb 19179 19179 20069 20069
+  EE bb 19179 19179 20069 20069   FF aa 21718 21718 21718 21718
+  FF aa 21718 21718 21718 21718   FF aa 21718 21718 21718 21718
+  FF aa 21718 21718 21718 21718   FF bb 21718 21718 23881 23881
+  FF bb 21718 21718 23881 23881   FF bb 21718 21718 23881 23881
+  FF bb 21718 21718 23881 23881   FF bb 21718 21718 23881 23881
+  FF bb 21718 21718 23881 23881   GG aa 27386 27386 27386 27386
+  GG aa 27386 27386 27386 27386   GG aa 27386 27386 27386 27386
+  GG aa 27386 27386 27386 27386   GG bb 27386 27386 28983 28983
+  GG bb 27386 27386 28983 28983   GG bb 27386 27386 28983 28983
+  GG bb 27386 27386 28983 28983   HH aa 31854 31854 31854 31854
+  HH aa 31854 31854 31854 31854   HH aa 31854 31854 31854 31854
+  HH bb 31854 31854 34103 34103   HH bb 31854 31854 34103 34103
+  HH bb 31854 31854 34103 34103   HH bb 31854 31854 34103 34103
+  HH bb 31854 31854 34103 34103   HH bb 31854 31854 34103 34103
+  II aa 37297 37297 37297 37297   II aa 37297 37297 37297 37297
+  II bb 37297 37297 38347 38347   II bb 37297 37297 38347 38347
+  II bb 37297 37297 38347 38347   II bb 37297 37297 38347 38347
+  II bb 37297 37297 38347 38347   JJ aa 40937 40937 40937 40937
+  JJ aa 40937 40937 40937 40937   JJ aa 40937 40937 40937 40937
+  JJ aa 40937 40937 40937 40937   JJ bb 40937 40937 42951 42951
+  JJ bb 40937 40937 42951 42951   JJ bb 40937 40937 42951 42951
+  JJ bb 40937 40937 42951 42951}
+
+do_execsql_test 1.2.1 {
+  SELECT a, b, sum(c) OVER (ORDER BY a  GROUPS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 4685   AA aa 4685   AA aa 4685   AA aa 4685   AA bb 4685   AA bb 4685
+  AA bb 4685   AA bb 4685   BB aa 12025   BB aa 12025   BB aa 12025
+  BB aa 12025   BB aa 12025   BB aa 12025   BB bb 12025   BB bb 12025
+  BB bb 12025   BB bb 12025   BB bb 12025   BB bb 12025   CC aa 15147
+  CC aa 15147   CC aa 15147   CC aa 15147   CC bb 15147   CC bb 15147
+  DD aa 19179   DD aa 19179   DD aa 19179   DD bb 19179   DD bb 19179
+  DD bb 19179   DD bb 19179   EE aa 21718   EE aa 21718   EE bb 21718
+  EE bb 21718   EE bb 21718   FF aa 27386   FF aa 27386   FF aa 27386
+  FF aa 27386   FF bb 27386   FF bb 27386   FF bb 27386   FF bb 27386
+  FF bb 27386   FF bb 27386   GG aa 31854   GG aa 31854   GG aa 31854
+  GG aa 31854   GG bb 31854   GG bb 31854   GG bb 31854   GG bb 31854
+  HH aa 37297   HH aa 37297   HH aa 37297   HH bb 37297   HH bb 37297
+  HH bb 37297   HH bb 37297   HH bb 37297   HH bb 37297   II aa 40937
+  II aa 40937   II bb 40937   II bb 40937   II bb 40937   II bb 40937
+  II bb 40937   JJ aa 44737   JJ aa 44737   JJ aa 44737   JJ aa 44737
+  JJ bb 44737   JJ bb 44737   JJ bb 44737   JJ bb 44737}
+
+do_execsql_test 1.2.2 {
+  SELECT a, b, sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 2307   AA aa 2307   AA aa 2307   AA aa 2307   AA bb 4685   AA bb 4685
+  AA bb 4685   AA bb 4685   BB aa 7558   BB aa 7558   BB aa 7558   BB aa 7558
+  BB aa 7558   BB aa 7558   BB bb 12025   BB bb 12025   BB bb 12025
+  BB bb 12025   BB bb 12025   BB bb 12025   CC aa 13979   CC aa 13979
+  CC aa 13979   CC aa 13979   CC bb 15147   CC bb 15147   DD aa 16472
+  DD aa 16472   DD aa 16472   DD bb 19179   DD bb 19179   DD bb 19179
+  DD bb 19179   EE aa 20069   EE aa 20069   EE bb 21718   EE bb 21718
+  EE bb 21718   FF aa 23881   FF aa 23881   FF aa 23881   FF aa 23881
+  FF bb 27386   FF bb 27386   FF bb 27386   FF bb 27386   FF bb 27386
+  FF bb 27386   GG aa 28983   GG aa 28983   GG aa 28983   GG aa 28983
+  GG bb 31854   GG bb 31854   GG bb 31854   GG bb 31854   HH aa 34103
+  HH aa 34103   HH aa 34103   HH bb 37297   HH bb 37297   HH bb 37297
+  HH bb 37297   HH bb 37297   HH bb 37297   II aa 38347   II aa 38347
+  II bb 40937   II bb 40937   II bb 40937   II bb 40937   II bb 40937
+  JJ aa 42951   JJ aa 42951   JJ aa 42951   JJ aa 42951   JJ bb 44737
+  JJ bb 44737   JJ bb 44737   JJ bb 44737}
+
+do_execsql_test 1.2.3 {
+  SELECT a, b, rank() OVER (ORDER BY a  GROUPS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 1   AA aa 1   AA aa 1   AA aa 1   AA bb 1   AA bb 1   AA bb 1
+  AA bb 1   BB aa 9   BB aa 9   BB aa 9   BB aa 9   BB aa 9   BB aa 9
+  BB bb 9   BB bb 9   BB bb 9   BB bb 9   BB bb 9   BB bb 9   CC aa 21
+  CC aa 21   CC aa 21   CC aa 21   CC bb 21   CC bb 21   DD aa 27   DD aa 27
+  DD aa 27   DD bb 27   DD bb 27   DD bb 27   DD bb 27   EE aa 34   EE aa 34
+  EE bb 34   EE bb 34   EE bb 34   FF aa 39   FF aa 39   FF aa 39   FF aa 39
+  FF bb 39   FF bb 39   FF bb 39   FF bb 39   FF bb 39   FF bb 39   GG aa 49
+  GG aa 49   GG aa 49   GG aa 49   GG bb 49   GG bb 49   GG bb 49   GG bb 49
+  HH aa 57   HH aa 57   HH aa 57   HH bb 57   HH bb 57   HH bb 57   HH bb 57
+  HH bb 57   HH bb 57   II aa 66   II aa 66   II bb 66   II bb 66   II bb 66
+  II bb 66   II bb 66   JJ aa 73   JJ aa 73   JJ aa 73   JJ aa 73   JJ bb 73
+  JJ bb 73   JJ bb 73   JJ bb 73}
+
+do_execsql_test 1.2.4 {
+  SELECT a, b, max(c) OVER (ORDER BY a,b  GROUPS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 934   AA aa 934   AA aa 934   AA aa 934   AA bb 934   AA bb 934
+  AA bb 934   AA bb 934   BB aa 934   BB aa 934   BB aa 934   BB aa 934
+  BB aa 934   BB aa 934   BB bb 934   BB bb 934   BB bb 934   BB bb 934
+  BB bb 934   BB bb 934   CC aa 934   CC aa 934   CC aa 934   CC aa 934
+  CC bb 934   CC bb 934   DD aa 934   DD aa 934   DD aa 934   DD bb 959
+  DD bb 959   DD bb 959   DD bb 959   EE aa 959   EE aa 959   EE bb 959
+  EE bb 959   EE bb 959   FF aa 959   FF aa 959   FF aa 959   FF aa 959
+  FF bb 959   FF bb 959   FF bb 959   FF bb 959   FF bb 959   FF bb 959
+  GG aa 959   GG aa 959   GG aa 959   GG aa 959   GG bb 959   GG bb 959
+  GG bb 959   GG bb 959   HH aa 979   HH aa 979   HH aa 979   HH bb 979
+  HH bb 979   HH bb 979   HH bb 979   HH bb 979   HH bb 979   II aa 979
+  II aa 979   II bb 979   II bb 979   II bb 979   II bb 979   II bb 979
+  JJ aa 979   JJ aa 979   JJ aa 979   JJ aa 979   JJ bb 979   JJ bb 979
+  JJ bb 979   JJ bb 979}
+
+do_execsql_test 1.2.5 {
+  SELECT a, b, min(c) OVER (ORDER BY a,b  GROUPS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 223   AA aa 223   AA aa 223   AA aa 223   AA bb 223   AA bb 223
+  AA bb 223   AA bb 223   BB aa 223   BB aa 223   BB aa 223   BB aa 223
+  BB aa 223   BB aa 223   BB bb 223   BB bb 223   BB bb 223   BB bb 223
+  BB bb 223   BB bb 223   CC aa 158   CC aa 158   CC aa 158   CC aa 158
+  CC bb 158   CC bb 158   DD aa 158   DD aa 158   DD aa 158   DD bb 158
+  DD bb 158   DD bb 158   DD bb 158   EE aa 113   EE aa 113   EE bb 113
+  EE bb 113   EE bb 113   FF aa 113   FF aa 113   FF aa 113   FF aa 113
+  FF bb 102   FF bb 102   FF bb 102   FF bb 102   FF bb 102   FF bb 102
+  GG aa 102   GG aa 102   GG aa 102   GG aa 102   GG bb 102   GG bb 102
+  GG bb 102   GG bb 102   HH aa 102   HH aa 102   HH aa 102   HH bb 102
+  HH bb 102   HH bb 102   HH bb 102   HH bb 102   HH bb 102   II aa 102
+  II aa 102   II bb 102   II bb 102   II bb 102   II bb 102   II bb 102
+  JJ aa 102   JJ aa 102   JJ aa 102   JJ aa 102   JJ bb 102   JJ bb 102
+  JJ bb 102   JJ bb 102}
+
+do_execsql_test 1.2.6 {
+  SELECT a, b, sum(c) OVER (ORDER BY a  GROUPS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW  EXCLUDE CURRENT ROW) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 3751   AA aa 3774   AA aa 4446   AA aa 4462   AA bb 3815   AA bb 4058
+  AA bb 4113   AA bb 4376   BB aa 11263   BB aa 11365   BB aa 11613
+  BB aa 11626   BB aa 11632   BB aa 11778   BB bb 11185   BB bb 11233
+  BB bb 11239   BB bb 11314   BB bb 11320   BB bb 11392   CC aa 14388
+  CC aa 14540   CC aa 14717   CC aa 14989   CC bb 14325   CC bb 14801
+  DD aa 18334   DD aa 18923   DD aa 18955   DD bb 18220   DD bb 18385
+  DD bb 18463   DD bb 18941   EE aa 20941   EE aa 21605   EE bb 20950
+  EE bb 21089   EE bb 21466   FF aa 26716   FF aa 26719   FF aa 26768
+  FF aa 27178   FF bb 26448   FF bb 26516   FF bb 26660   FF bb 26812
+  FF bb 27091   FF bb 27284   GG aa 31220   GG aa 31374   GG aa 31519
+  GG aa 31706   GG bb 30916   GG bb 30925   GG bb 31010   GG bb 31694
+  HH aa 36318   HH aa 36507   HH aa 36817   HH bb 36334   HH bb 36567
+  HH bb 36614   HH bb 36942   HH bb 36967   HH bb 37164   II aa 40285
+  II aa 40539   II bb 40132   II bb 40266   II bb 40494   II bb 40516
+  II bb 40687   JJ aa 43838   JJ aa 43969   JJ aa 44503   JJ aa 44624
+  JJ bb 43898   JJ bb 44383   JJ bb 44401   JJ bb 44480}
+
+do_execsql_test 1.2.7 {
+  SELECT a, b, sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW  EXCLUDE CURRENT ROW) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 1373   AA aa 1396   AA aa 2068   AA aa 2084   AA bb 3815   AA bb 4058
+  AA bb 4113   AA bb 4376   BB aa 6796   BB aa 6898   BB aa 7146   BB aa 7159
+  BB aa 7165   BB aa 7311   BB bb 11185   BB bb 11233   BB bb 11239
+  BB bb 11314   BB bb 11320   BB bb 11392   CC aa 13220   CC aa 13372
+  CC aa 13549   CC aa 13821   CC bb 14325   CC bb 14801   DD aa 15627
+  DD aa 16216   DD aa 16248   DD bb 18220   DD bb 18385   DD bb 18463
+  DD bb 18941   EE aa 19292   EE aa 19956   EE bb 20950   EE bb 21089
+  EE bb 21466   FF aa 23211   FF aa 23214   FF aa 23263   FF aa 23673
+  FF bb 26448   FF bb 26516   FF bb 26660   FF bb 26812   FF bb 27091
+  FF bb 27284   GG aa 28349   GG aa 28503   GG aa 28648   GG aa 28835
+  GG bb 30916   GG bb 30925   GG bb 31010   GG bb 31694   HH aa 33124
+  HH aa 33313   HH aa 33623   HH bb 36334   HH bb 36567   HH bb 36614
+  HH bb 36942   HH bb 36967   HH bb 37164   II aa 37695   II aa 37949
+  II bb 40132   II bb 40266   II bb 40494   II bb 40516   II bb 40687
+  JJ aa 42052   JJ aa 42183   JJ aa 42717   JJ aa 42838   JJ bb 43898
+  JJ bb 44383   JJ bb 44401   JJ bb 44480}
+
+do_execsql_test 1.2.8 {
+  SELECT a, b, 
+      sum(c) OVER (ORDER BY a  GROUPS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW  EXCLUDE CURRENT ROW),
+      sum(c) OVER (ORDER BY a  GROUPS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ),
+      sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW  EXCLUDE CURRENT ROW),
+      sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW )
+    FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 3751 4685 1373 2307   AA aa 3774 4685 1396 2307
+  AA aa 4446 4685 2068 2307   AA aa 4462 4685 2084 2307
+  AA bb 3815 4685 3815 4685   AA bb 4058 4685 4058 4685
+  AA bb 4113 4685 4113 4685   AA bb 4376 4685 4376 4685
+  BB aa 11263 12025 6796 7558   BB aa 11365 12025 6898 7558
+  BB aa 11613 12025 7146 7558   BB aa 11626 12025 7159 7558
+  BB aa 11632 12025 7165 7558   BB aa 11778 12025 7311 7558
+  BB bb 11185 12025 11185 12025   BB bb 11233 12025 11233 12025
+  BB bb 11239 12025 11239 12025   BB bb 11314 12025 11314 12025
+  BB bb 11320 12025 11320 12025   BB bb 11392 12025 11392 12025
+  CC aa 14388 15147 13220 13979   CC aa 14540 15147 13372 13979
+  CC aa 14717 15147 13549 13979   CC aa 14989 15147 13821 13979
+  CC bb 14325 15147 14325 15147   CC bb 14801 15147 14801 15147
+  DD aa 18334 19179 15627 16472   DD aa 18923 19179 16216 16472
+  DD aa 18955 19179 16248 16472   DD bb 18220 19179 18220 19179
+  DD bb 18385 19179 18385 19179   DD bb 18463 19179 18463 19179
+  DD bb 18941 19179 18941 19179   EE aa 20941 21718 19292 20069
+  EE aa 21605 21718 19956 20069   EE bb 20950 21718 20950 21718
+  EE bb 21089 21718 21089 21718   EE bb 21466 21718 21466 21718
+  FF aa 26716 27386 23211 23881   FF aa 26719 27386 23214 23881
+  FF aa 26768 27386 23263 23881   FF aa 27178 27386 23673 23881
+  FF bb 26448 27386 26448 27386   FF bb 26516 27386 26516 27386
+  FF bb 26660 27386 26660 27386   FF bb 26812 27386 26812 27386
+  FF bb 27091 27386 27091 27386   FF bb 27284 27386 27284 27386
+  GG aa 31220 31854 28349 28983   GG aa 31374 31854 28503 28983
+  GG aa 31519 31854 28648 28983   GG aa 31706 31854 28835 28983
+  GG bb 30916 31854 30916 31854   GG bb 30925 31854 30925 31854
+  GG bb 31010 31854 31010 31854   GG bb 31694 31854 31694 31854
+  HH aa 36318 37297 33124 34103   HH aa 36507 37297 33313 34103
+  HH aa 36817 37297 33623 34103   HH bb 36334 37297 36334 37297
+  HH bb 36567 37297 36567 37297   HH bb 36614 37297 36614 37297
+  HH bb 36942 37297 36942 37297   HH bb 36967 37297 36967 37297
+  HH bb 37164 37297 37164 37297   II aa 40285 40937 37695 38347
+  II aa 40539 40937 37949 38347   II bb 40132 40937 40132 40937
+  II bb 40266 40937 40266 40937   II bb 40494 40937 40494 40937
+  II bb 40516 40937 40516 40937   II bb 40687 40937 40687 40937
+  JJ aa 43838 44737 42052 42951   JJ aa 43969 44737 42183 42951
+  JJ aa 44503 44737 42717 42951   JJ aa 44624 44737 42838 42951
+  JJ bb 43898 44737 43898 44737   JJ bb 44383 44737 44383 44737
+  JJ bb 44401 44737 44401 44737   JJ bb 44480 44737 44480 44737}
+
+do_execsql_test 1.3.1 {
+  SELECT a, b, sum(c) OVER (ORDER BY a  GROUPS BETWEEN UNBOUNDED PRECEDING AND 1 FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 12025   AA aa 12025   AA aa 12025   AA aa 12025   AA bb 12025
+  AA bb 12025   AA bb 12025   AA bb 12025   BB aa 15147   BB aa 15147
+  BB aa 15147   BB aa 15147   BB aa 15147   BB aa 15147   BB bb 15147
+  BB bb 15147   BB bb 15147   BB bb 15147   BB bb 15147   BB bb 15147
+  CC aa 19179   CC aa 19179   CC aa 19179   CC aa 19179   CC bb 19179
+  CC bb 19179   DD aa 21718   DD aa 21718   DD aa 21718   DD bb 21718
+  DD bb 21718   DD bb 21718   DD bb 21718   EE aa 27386   EE aa 27386
+  EE bb 27386   EE bb 27386   EE bb 27386   FF aa 31854   FF aa 31854
+  FF aa 31854   FF aa 31854   FF bb 31854   FF bb 31854   FF bb 31854
+  FF bb 31854   FF bb 31854   FF bb 31854   GG aa 37297   GG aa 37297
+  GG aa 37297   GG aa 37297   GG bb 37297   GG bb 37297   GG bb 37297
+  GG bb 37297   HH aa 40937   HH aa 40937   HH aa 40937   HH bb 40937
+  HH bb 40937   HH bb 40937   HH bb 40937   HH bb 40937   HH bb 40937
+  II aa 44737   II aa 44737   II bb 44737   II bb 44737   II bb 44737
+  II bb 44737   II bb 44737   JJ aa 44737   JJ aa 44737   JJ aa 44737
+  JJ aa 44737   JJ bb 44737   JJ bb 44737   JJ bb 44737   JJ bb 44737}
+
+do_execsql_test 1.3.2 {
+  SELECT a, b, sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN UNBOUNDED PRECEDING AND 1 FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 4685   AA aa 4685   AA aa 4685   AA aa 4685   AA bb 7558   AA bb 7558
+  AA bb 7558   AA bb 7558   BB aa 12025   BB aa 12025   BB aa 12025
+  BB aa 12025   BB aa 12025   BB aa 12025   BB bb 13979   BB bb 13979
+  BB bb 13979   BB bb 13979   BB bb 13979   BB bb 13979   CC aa 15147
+  CC aa 15147   CC aa 15147   CC aa 15147   CC bb 16472   CC bb 16472
+  DD aa 19179   DD aa 19179   DD aa 19179   DD bb 20069   DD bb 20069
+  DD bb 20069   DD bb 20069   EE aa 21718   EE aa 21718   EE bb 23881
+  EE bb 23881   EE bb 23881   FF aa 27386   FF aa 27386   FF aa 27386
+  FF aa 27386   FF bb 28983   FF bb 28983   FF bb 28983   FF bb 28983
+  FF bb 28983   FF bb 28983   GG aa 31854   GG aa 31854   GG aa 31854
+  GG aa 31854   GG bb 34103   GG bb 34103   GG bb 34103   GG bb 34103
+  HH aa 37297   HH aa 37297   HH aa 37297   HH bb 38347   HH bb 38347
+  HH bb 38347   HH bb 38347   HH bb 38347   HH bb 38347   II aa 40937
+  II aa 40937   II bb 42951   II bb 42951   II bb 42951   II bb 42951
+  II bb 42951   JJ aa 44737   JJ aa 44737   JJ aa 44737   JJ aa 44737
+  JJ bb 44737   JJ bb 44737   JJ bb 44737   JJ bb 44737}
+
+do_execsql_test 1.3.3 {
+  SELECT a, b, rank() OVER (ORDER BY a  GROUPS BETWEEN UNBOUNDED PRECEDING AND 1 FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 1   AA aa 1   AA aa 1   AA aa 1   AA bb 1   AA bb 1   AA bb 1
+  AA bb 1   BB aa 9   BB aa 9   BB aa 9   BB aa 9   BB aa 9   BB aa 9
+  BB bb 9   BB bb 9   BB bb 9   BB bb 9   BB bb 9   BB bb 9   CC aa 21
+  CC aa 21   CC aa 21   CC aa 21   CC bb 21   CC bb 21   DD aa 27   DD aa 27
+  DD aa 27   DD bb 27   DD bb 27   DD bb 27   DD bb 27   EE aa 34   EE aa 34
+  EE bb 34   EE bb 34   EE bb 34   FF aa 39   FF aa 39   FF aa 39   FF aa 39
+  FF bb 39   FF bb 39   FF bb 39   FF bb 39   FF bb 39   FF bb 39   GG aa 49
+  GG aa 49   GG aa 49   GG aa 49   GG bb 49   GG bb 49   GG bb 49   GG bb 49
+  HH aa 57   HH aa 57   HH aa 57   HH bb 57   HH bb 57   HH bb 57   HH bb 57
+  HH bb 57   HH bb 57   II aa 66   II aa 66   II bb 66   II bb 66   II bb 66
+  II bb 66   II bb 66   JJ aa 73   JJ aa 73   JJ aa 73   JJ aa 73   JJ bb 73
+  JJ bb 73   JJ bb 73   JJ bb 73}
+
+do_execsql_test 1.3.4 {
+  SELECT a, b, max(c) OVER (ORDER BY a,b  GROUPS BETWEEN UNBOUNDED PRECEDING AND 1 FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 934   AA aa 934   AA aa 934   AA aa 934   AA bb 934   AA bb 934
+  AA bb 934   AA bb 934   BB aa 934   BB aa 934   BB aa 934   BB aa 934
+  BB aa 934   BB aa 934   BB bb 934   BB bb 934   BB bb 934   BB bb 934
+  BB bb 934   BB bb 934   CC aa 934   CC aa 934   CC aa 934   CC aa 934
+  CC bb 934   CC bb 934   DD aa 959   DD aa 959   DD aa 959   DD bb 959
+  DD bb 959   DD bb 959   DD bb 959   EE aa 959   EE aa 959   EE bb 959
+  EE bb 959   EE bb 959   FF aa 959   FF aa 959   FF aa 959   FF aa 959
+  FF bb 959   FF bb 959   FF bb 959   FF bb 959   FF bb 959   FF bb 959
+  GG aa 959   GG aa 959   GG aa 959   GG aa 959   GG bb 979   GG bb 979
+  GG bb 979   GG bb 979   HH aa 979   HH aa 979   HH aa 979   HH bb 979
+  HH bb 979   HH bb 979   HH bb 979   HH bb 979   HH bb 979   II aa 979
+  II aa 979   II bb 979   II bb 979   II bb 979   II bb 979   II bb 979
+  JJ aa 979   JJ aa 979   JJ aa 979   JJ aa 979   JJ bb 979   JJ bb 979
+  JJ bb 979   JJ bb 979}
+
+do_execsql_test 1.3.5 {
+  SELECT a, b, min(c) OVER (ORDER BY a,b  GROUPS BETWEEN UNBOUNDED PRECEDING AND 1 FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 223   AA aa 223   AA aa 223   AA aa 223   AA bb 223   AA bb 223
+  AA bb 223   AA bb 223   BB aa 223   BB aa 223   BB aa 223   BB aa 223
+  BB aa 223   BB aa 223   BB bb 158   BB bb 158   BB bb 158   BB bb 158
+  BB bb 158   BB bb 158   CC aa 158   CC aa 158   CC aa 158   CC aa 158
+  CC bb 158   CC bb 158   DD aa 158   DD aa 158   DD aa 158   DD bb 113
+  DD bb 113   DD bb 113   DD bb 113   EE aa 113   EE aa 113   EE bb 113
+  EE bb 113   EE bb 113   FF aa 102   FF aa 102   FF aa 102   FF aa 102
+  FF bb 102   FF bb 102   FF bb 102   FF bb 102   FF bb 102   FF bb 102
+  GG aa 102   GG aa 102   GG aa 102   GG aa 102   GG bb 102   GG bb 102
+  GG bb 102   GG bb 102   HH aa 102   HH aa 102   HH aa 102   HH bb 102
+  HH bb 102   HH bb 102   HH bb 102   HH bb 102   HH bb 102   II aa 102
+  II aa 102   II bb 102   II bb 102   II bb 102   II bb 102   II bb 102
+  JJ aa 102   JJ aa 102   JJ aa 102   JJ aa 102   JJ bb 102   JJ bb 102
+  JJ bb 102   JJ bb 102}
+
+do_execsql_test 1.3.6 {
+  SELECT a, b, sum(c) OVER (ORDER BY a  GROUPS BETWEEN UNBOUNDED PRECEDING AND 1 FOLLOWING  EXCLUDE CURRENT ROW) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 11091   AA aa 11114   AA aa 11786   AA aa 11802   AA bb 11155
+  AA bb 11398   AA bb 11453   AA bb 11716   BB aa 14385   BB aa 14487
+  BB aa 14735   BB aa 14748   BB aa 14754   BB aa 14900   BB bb 14307
+  BB bb 14355   BB bb 14361   BB bb 14436   BB bb 14442   BB bb 14514
+  CC aa 18420   CC aa 18572   CC aa 18749   CC aa 19021   CC bb 18357
+  CC bb 18833   DD aa 20873   DD aa 21462   DD aa 21494   DD bb 20759
+  DD bb 20924   DD bb 21002   DD bb 21480   EE aa 26609   EE aa 27273
+  EE bb 26618   EE bb 26757   EE bb 27134   FF aa 31184   FF aa 31187
+  FF aa 31236   FF aa 31646   FF bb 30916   FF bb 30984   FF bb 31128
+  FF bb 31280   FF bb 31559   FF bb 31752   GG aa 36663   GG aa 36817
+  GG aa 36962   GG aa 37149   GG bb 36359   GG bb 36368   GG bb 36453
+  GG bb 37137   HH aa 39958   HH aa 40147   HH aa 40457   HH bb 39974
+  HH bb 40207   HH bb 40254   HH bb 40582   HH bb 40607   HH bb 40804
+  II aa 44085   II aa 44339   II bb 43932   II bb 44066   II bb 44294
+  II bb 44316   II bb 44487   JJ aa 43838   JJ aa 43969   JJ aa 44503
+  JJ aa 44624   JJ bb 43898   JJ bb 44383   JJ bb 44401   JJ bb 44480}
+
+do_execsql_test 1.3.7 {
+  SELECT a, b, sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN UNBOUNDED PRECEDING AND 1 FOLLOWING  EXCLUDE CURRENT ROW) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 3751   AA aa 3774   AA aa 4446   AA aa 4462   AA bb 6688   AA bb 6931
+  AA bb 6986   AA bb 7249   BB aa 11263   BB aa 11365   BB aa 11613
+  BB aa 11626   BB aa 11632   BB aa 11778   BB bb 13139   BB bb 13187
+  BB bb 13193   BB bb 13268   BB bb 13274   BB bb 13346   CC aa 14388
+  CC aa 14540   CC aa 14717   CC aa 14989   CC bb 15650   CC bb 16126
+  DD aa 18334   DD aa 18923   DD aa 18955   DD bb 19110   DD bb 19275
+  DD bb 19353   DD bb 19831   EE aa 20941   EE aa 21605   EE bb 23113
+  EE bb 23252   EE bb 23629   FF aa 26716   FF aa 26719   FF aa 26768
+  FF aa 27178   FF bb 28045   FF bb 28113   FF bb 28257   FF bb 28409
+  FF bb 28688   FF bb 28881   GG aa 31220   GG aa 31374   GG aa 31519
+  GG aa 31706   GG bb 33165   GG bb 33174   GG bb 33259   GG bb 33943
+  HH aa 36318   HH aa 36507   HH aa 36817   HH bb 37384   HH bb 37617
+  HH bb 37664   HH bb 37992   HH bb 38017   HH bb 38214   II aa 40285
+  II aa 40539   II bb 42146   II bb 42280   II bb 42508   II bb 42530
+  II bb 42701   JJ aa 43838   JJ aa 43969   JJ aa 44503   JJ aa 44624
+  JJ bb 43898   JJ bb 44383   JJ bb 44401   JJ bb 44480}
+
+do_execsql_test 1.3.8 {
+  SELECT a, b, 
+      sum(c) OVER (ORDER BY a  GROUPS BETWEEN UNBOUNDED PRECEDING AND 1 FOLLOWING  EXCLUDE CURRENT ROW),
+      sum(c) OVER (ORDER BY a  GROUPS BETWEEN UNBOUNDED PRECEDING AND 1 FOLLOWING ),
+      sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN UNBOUNDED PRECEDING AND 1 FOLLOWING  EXCLUDE CURRENT ROW),
+      sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN UNBOUNDED PRECEDING AND 1 FOLLOWING )
+    FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 11091 12025 3751 4685   AA aa 11114 12025 3774 4685
+  AA aa 11786 12025 4446 4685   AA aa 11802 12025 4462 4685
+  AA bb 11155 12025 6688 7558   AA bb 11398 12025 6931 7558
+  AA bb 11453 12025 6986 7558   AA bb 11716 12025 7249 7558
+  BB aa 14385 15147 11263 12025   BB aa 14487 15147 11365 12025
+  BB aa 14735 15147 11613 12025   BB aa 14748 15147 11626 12025
+  BB aa 14754 15147 11632 12025   BB aa 14900 15147 11778 12025
+  BB bb 14307 15147 13139 13979   BB bb 14355 15147 13187 13979
+  BB bb 14361 15147 13193 13979   BB bb 14436 15147 13268 13979
+  BB bb 14442 15147 13274 13979   BB bb 14514 15147 13346 13979
+  CC aa 18420 19179 14388 15147   CC aa 18572 19179 14540 15147
+  CC aa 18749 19179 14717 15147   CC aa 19021 19179 14989 15147
+  CC bb 18357 19179 15650 16472   CC bb 18833 19179 16126 16472
+  DD aa 20873 21718 18334 19179   DD aa 21462 21718 18923 19179
+  DD aa 21494 21718 18955 19179   DD bb 20759 21718 19110 20069
+  DD bb 20924 21718 19275 20069   DD bb 21002 21718 19353 20069
+  DD bb 21480 21718 19831 20069   EE aa 26609 27386 20941 21718
+  EE aa 27273 27386 21605 21718   EE bb 26618 27386 23113 23881
+  EE bb 26757 27386 23252 23881   EE bb 27134 27386 23629 23881
+  FF aa 31184 31854 26716 27386   FF aa 31187 31854 26719 27386
+  FF aa 31236 31854 26768 27386   FF aa 31646 31854 27178 27386
+  FF bb 30916 31854 28045 28983   FF bb 30984 31854 28113 28983
+  FF bb 31128 31854 28257 28983   FF bb 31280 31854 28409 28983
+  FF bb 31559 31854 28688 28983   FF bb 31752 31854 28881 28983
+  GG aa 36663 37297 31220 31854   GG aa 36817 37297 31374 31854
+  GG aa 36962 37297 31519 31854   GG aa 37149 37297 31706 31854
+  GG bb 36359 37297 33165 34103   GG bb 36368 37297 33174 34103
+  GG bb 36453 37297 33259 34103   GG bb 37137 37297 33943 34103
+  HH aa 39958 40937 36318 37297   HH aa 40147 40937 36507 37297
+  HH aa 40457 40937 36817 37297   HH bb 39974 40937 37384 38347
+  HH bb 40207 40937 37617 38347   HH bb 40254 40937 37664 38347
+  HH bb 40582 40937 37992 38347   HH bb 40607 40937 38017 38347
+  HH bb 40804 40937 38214 38347   II aa 44085 44737 40285 40937
+  II aa 44339 44737 40539 40937   II bb 43932 44737 42146 42951
+  II bb 44066 44737 42280 42951   II bb 44294 44737 42508 42951
+  II bb 44316 44737 42530 42951   II bb 44487 44737 42701 42951
+  JJ aa 43838 44737 43838 44737   JJ aa 43969 44737 43969 44737
+  JJ aa 44503 44737 44503 44737   JJ aa 44624 44737 44624 44737
+  JJ bb 43898 44737 43898 44737   JJ bb 44383 44737 44383 44737
+  JJ bb 44401 44737 44401 44737   JJ bb 44480 44737 44480 44737}
+
+do_execsql_test 1.4.1 {
+  SELECT a, b, sum(c) OVER (ORDER BY a  GROUPS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 44737   AA aa 44737   AA aa 44737   AA aa 44737   AA bb 44737
+  AA bb 44737   AA bb 44737   AA bb 44737   BB aa 44737   BB aa 44737
+  BB aa 44737   BB aa 44737   BB aa 44737   BB aa 44737   BB bb 44737
+  BB bb 44737   BB bb 44737   BB bb 44737   BB bb 44737   BB bb 44737
+  CC aa 44737   CC aa 44737   CC aa 44737   CC aa 44737   CC bb 44737
+  CC bb 44737   DD aa 44737   DD aa 44737   DD aa 44737   DD bb 44737
+  DD bb 44737   DD bb 44737   DD bb 44737   EE aa 44737   EE aa 44737
+  EE bb 44737   EE bb 44737   EE bb 44737   FF aa 44737   FF aa 44737
+  FF aa 44737   FF aa 44737   FF bb 44737   FF bb 44737   FF bb 44737
+  FF bb 44737   FF bb 44737   FF bb 44737   GG aa 44737   GG aa 44737
+  GG aa 44737   GG aa 44737   GG bb 44737   GG bb 44737   GG bb 44737
+  GG bb 44737   HH aa 44737   HH aa 44737   HH aa 44737   HH bb 44737
+  HH bb 44737   HH bb 44737   HH bb 44737   HH bb 44737   HH bb 44737
+  II aa 44737   II aa 44737   II bb 44737   II bb 44737   II bb 44737
+  II bb 44737   II bb 44737   JJ aa 44737   JJ aa 44737   JJ aa 44737
+  JJ aa 44737   JJ bb 44737   JJ bb 44737   JJ bb 44737   JJ bb 44737}
+
+do_execsql_test 1.4.2 {
+  SELECT a, b, sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 44737   AA aa 44737   AA aa 44737   AA aa 44737   AA bb 44737
+  AA bb 44737   AA bb 44737   AA bb 44737   BB aa 44737   BB aa 44737
+  BB aa 44737   BB aa 44737   BB aa 44737   BB aa 44737   BB bb 44737
+  BB bb 44737   BB bb 44737   BB bb 44737   BB bb 44737   BB bb 44737
+  CC aa 44737   CC aa 44737   CC aa 44737   CC aa 44737   CC bb 44737
+  CC bb 44737   DD aa 44737   DD aa 44737   DD aa 44737   DD bb 44737
+  DD bb 44737   DD bb 44737   DD bb 44737   EE aa 44737   EE aa 44737
+  EE bb 44737   EE bb 44737   EE bb 44737   FF aa 44737   FF aa 44737
+  FF aa 44737   FF aa 44737   FF bb 44737   FF bb 44737   FF bb 44737
+  FF bb 44737   FF bb 44737   FF bb 44737   GG aa 44737   GG aa 44737
+  GG aa 44737   GG aa 44737   GG bb 44737   GG bb 44737   GG bb 44737
+  GG bb 44737   HH aa 44737   HH aa 44737   HH aa 44737   HH bb 44737
+  HH bb 44737   HH bb 44737   HH bb 44737   HH bb 44737   HH bb 44737
+  II aa 44737   II aa 44737   II bb 44737   II bb 44737   II bb 44737
+  II bb 44737   II bb 44737   JJ aa 44737   JJ aa 44737   JJ aa 44737
+  JJ aa 44737   JJ bb 44737   JJ bb 44737   JJ bb 44737   JJ bb 44737}
+
+do_execsql_test 1.4.3 {
+  SELECT a, b, rank() OVER (ORDER BY a  GROUPS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 1   AA aa 1   AA aa 1   AA aa 1   AA bb 1   AA bb 1   AA bb 1
+  AA bb 1   BB aa 9   BB aa 9   BB aa 9   BB aa 9   BB aa 9   BB aa 9
+  BB bb 9   BB bb 9   BB bb 9   BB bb 9   BB bb 9   BB bb 9   CC aa 21
+  CC aa 21   CC aa 21   CC aa 21   CC bb 21   CC bb 21   DD aa 27   DD aa 27
+  DD aa 27   DD bb 27   DD bb 27   DD bb 27   DD bb 27   EE aa 34   EE aa 34
+  EE bb 34   EE bb 34   EE bb 34   FF aa 39   FF aa 39   FF aa 39   FF aa 39
+  FF bb 39   FF bb 39   FF bb 39   FF bb 39   FF bb 39   FF bb 39   GG aa 49
+  GG aa 49   GG aa 49   GG aa 49   GG bb 49   GG bb 49   GG bb 49   GG bb 49
+  HH aa 57   HH aa 57   HH aa 57   HH bb 57   HH bb 57   HH bb 57   HH bb 57
+  HH bb 57   HH bb 57   II aa 66   II aa 66   II bb 66   II bb 66   II bb 66
+  II bb 66   II bb 66   JJ aa 73   JJ aa 73   JJ aa 73   JJ aa 73   JJ bb 73
+  JJ bb 73   JJ bb 73   JJ bb 73}
+
+do_execsql_test 1.4.4 {
+  SELECT a, b, max(c) OVER (ORDER BY a,b  GROUPS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 979   AA aa 979   AA aa 979   AA aa 979   AA bb 979   AA bb 979
+  AA bb 979   AA bb 979   BB aa 979   BB aa 979   BB aa 979   BB aa 979
+  BB aa 979   BB aa 979   BB bb 979   BB bb 979   BB bb 979   BB bb 979
+  BB bb 979   BB bb 979   CC aa 979   CC aa 979   CC aa 979   CC aa 979
+  CC bb 979   CC bb 979   DD aa 979   DD aa 979   DD aa 979   DD bb 979
+  DD bb 979   DD bb 979   DD bb 979   EE aa 979   EE aa 979   EE bb 979
+  EE bb 979   EE bb 979   FF aa 979   FF aa 979   FF aa 979   FF aa 979
+  FF bb 979   FF bb 979   FF bb 979   FF bb 979   FF bb 979   FF bb 979
+  GG aa 979   GG aa 979   GG aa 979   GG aa 979   GG bb 979   GG bb 979
+  GG bb 979   GG bb 979   HH aa 979   HH aa 979   HH aa 979   HH bb 979
+  HH bb 979   HH bb 979   HH bb 979   HH bb 979   HH bb 979   II aa 979
+  II aa 979   II bb 979   II bb 979   II bb 979   II bb 979   II bb 979
+  JJ aa 979   JJ aa 979   JJ aa 979   JJ aa 979   JJ bb 979   JJ bb 979
+  JJ bb 979   JJ bb 979}
+
+do_execsql_test 1.4.5 {
+  SELECT a, b, min(c) OVER (ORDER BY a,b  GROUPS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 102   AA aa 102   AA aa 102   AA aa 102   AA bb 102   AA bb 102
+  AA bb 102   AA bb 102   BB aa 102   BB aa 102   BB aa 102   BB aa 102
+  BB aa 102   BB aa 102   BB bb 102   BB bb 102   BB bb 102   BB bb 102
+  BB bb 102   BB bb 102   CC aa 102   CC aa 102   CC aa 102   CC aa 102
+  CC bb 102   CC bb 102   DD aa 102   DD aa 102   DD aa 102   DD bb 102
+  DD bb 102   DD bb 102   DD bb 102   EE aa 102   EE aa 102   EE bb 102
+  EE bb 102   EE bb 102   FF aa 102   FF aa 102   FF aa 102   FF aa 102
+  FF bb 102   FF bb 102   FF bb 102   FF bb 102   FF bb 102   FF bb 102
+  GG aa 102   GG aa 102   GG aa 102   GG aa 102   GG bb 102   GG bb 102
+  GG bb 102   GG bb 102   HH aa 102   HH aa 102   HH aa 102   HH bb 102
+  HH bb 102   HH bb 102   HH bb 102   HH bb 102   HH bb 102   II aa 102
+  II aa 102   II bb 102   II bb 102   II bb 102   II bb 102   II bb 102
+  JJ aa 102   JJ aa 102   JJ aa 102   JJ aa 102   JJ bb 102   JJ bb 102
+  JJ bb 102   JJ bb 102}
+
+do_execsql_test 1.4.6 {
+  SELECT a, b, sum(c) OVER (ORDER BY a  GROUPS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING  EXCLUDE CURRENT ROW) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 43803   AA aa 43826   AA aa 44498   AA aa 44514   AA bb 43867
+  AA bb 44110   AA bb 44165   AA bb 44428   BB aa 43975   BB aa 44077
+  BB aa 44325   BB aa 44338   BB aa 44344   BB aa 44490   BB bb 43897
+  BB bb 43945   BB bb 43951   BB bb 44026   BB bb 44032   BB bb 44104
+  CC aa 43978   CC aa 44130   CC aa 44307   CC aa 44579   CC bb 43915
+  CC bb 44391   DD aa 43892   DD aa 44481   DD aa 44513   DD bb 43778
+  DD bb 43943   DD bb 44021   DD bb 44499   EE aa 43960   EE aa 44624
+  EE bb 43969   EE bb 44108   EE bb 44485   FF aa 44067   FF aa 44070
+  FF aa 44119   FF aa 44529   FF bb 43799   FF bb 43867   FF bb 44011
+  FF bb 44163   FF bb 44442   FF bb 44635   GG aa 44103   GG aa 44257
+  GG aa 44402   GG aa 44589   GG bb 43799   GG bb 43808   GG bb 43893
+  GG bb 44577   HH aa 43758   HH aa 43947   HH aa 44257   HH bb 43774
+  HH bb 44007   HH bb 44054   HH bb 44382   HH bb 44407   HH bb 44604
+  II aa 44085   II aa 44339   II bb 43932   II bb 44066   II bb 44294
+  II bb 44316   II bb 44487   JJ aa 43838   JJ aa 43969   JJ aa 44503
+  JJ aa 44624   JJ bb 43898   JJ bb 44383   JJ bb 44401   JJ bb 44480}
+
+do_execsql_test 1.4.7 {
+  SELECT a, b, sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING  EXCLUDE CURRENT ROW) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 43803   AA aa 43826   AA aa 44498   AA aa 44514   AA bb 43867
+  AA bb 44110   AA bb 44165   AA bb 44428   BB aa 43975   BB aa 44077
+  BB aa 44325   BB aa 44338   BB aa 44344   BB aa 44490   BB bb 43897
+  BB bb 43945   BB bb 43951   BB bb 44026   BB bb 44032   BB bb 44104
+  CC aa 43978   CC aa 44130   CC aa 44307   CC aa 44579   CC bb 43915
+  CC bb 44391   DD aa 43892   DD aa 44481   DD aa 44513   DD bb 43778
+  DD bb 43943   DD bb 44021   DD bb 44499   EE aa 43960   EE aa 44624
+  EE bb 43969   EE bb 44108   EE bb 44485   FF aa 44067   FF aa 44070
+  FF aa 44119   FF aa 44529   FF bb 43799   FF bb 43867   FF bb 44011
+  FF bb 44163   FF bb 44442   FF bb 44635   GG aa 44103   GG aa 44257
+  GG aa 44402   GG aa 44589   GG bb 43799   GG bb 43808   GG bb 43893
+  GG bb 44577   HH aa 43758   HH aa 43947   HH aa 44257   HH bb 43774
+  HH bb 44007   HH bb 44054   HH bb 44382   HH bb 44407   HH bb 44604
+  II aa 44085   II aa 44339   II bb 43932   II bb 44066   II bb 44294
+  II bb 44316   II bb 44487   JJ aa 43838   JJ aa 43969   JJ aa 44503
+  JJ aa 44624   JJ bb 43898   JJ bb 44383   JJ bb 44401   JJ bb 44480}
+
+do_execsql_test 1.4.8 {
+  SELECT a, b, 
+      sum(c) OVER (ORDER BY a  GROUPS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING  EXCLUDE CURRENT ROW),
+      sum(c) OVER (ORDER BY a  GROUPS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING ),
+      sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING  EXCLUDE CURRENT ROW),
+      sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING )
+    FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 43803 44737 43803 44737   AA aa 43826 44737 43826 44737
+  AA aa 44498 44737 44498 44737   AA aa 44514 44737 44514 44737
+  AA bb 43867 44737 43867 44737   AA bb 44110 44737 44110 44737
+  AA bb 44165 44737 44165 44737   AA bb 44428 44737 44428 44737
+  BB aa 43975 44737 43975 44737   BB aa 44077 44737 44077 44737
+  BB aa 44325 44737 44325 44737   BB aa 44338 44737 44338 44737
+  BB aa 44344 44737 44344 44737   BB aa 44490 44737 44490 44737
+  BB bb 43897 44737 43897 44737   BB bb 43945 44737 43945 44737
+  BB bb 43951 44737 43951 44737   BB bb 44026 44737 44026 44737
+  BB bb 44032 44737 44032 44737   BB bb 44104 44737 44104 44737
+  CC aa 43978 44737 43978 44737   CC aa 44130 44737 44130 44737
+  CC aa 44307 44737 44307 44737   CC aa 44579 44737 44579 44737
+  CC bb 43915 44737 43915 44737   CC bb 44391 44737 44391 44737
+  DD aa 43892 44737 43892 44737   DD aa 44481 44737 44481 44737
+  DD aa 44513 44737 44513 44737   DD bb 43778 44737 43778 44737
+  DD bb 43943 44737 43943 44737   DD bb 44021 44737 44021 44737
+  DD bb 44499 44737 44499 44737   EE aa 43960 44737 43960 44737
+  EE aa 44624 44737 44624 44737   EE bb 43969 44737 43969 44737
+  EE bb 44108 44737 44108 44737   EE bb 44485 44737 44485 44737
+  FF aa 44067 44737 44067 44737   FF aa 44070 44737 44070 44737
+  FF aa 44119 44737 44119 44737   FF aa 44529 44737 44529 44737
+  FF bb 43799 44737 43799 44737   FF bb 43867 44737 43867 44737
+  FF bb 44011 44737 44011 44737   FF bb 44163 44737 44163 44737
+  FF bb 44442 44737 44442 44737   FF bb 44635 44737 44635 44737
+  GG aa 44103 44737 44103 44737   GG aa 44257 44737 44257 44737
+  GG aa 44402 44737 44402 44737   GG aa 44589 44737 44589 44737
+  GG bb 43799 44737 43799 44737   GG bb 43808 44737 43808 44737
+  GG bb 43893 44737 43893 44737   GG bb 44577 44737 44577 44737
+  HH aa 43758 44737 43758 44737   HH aa 43947 44737 43947 44737
+  HH aa 44257 44737 44257 44737   HH bb 43774 44737 43774 44737
+  HH bb 44007 44737 44007 44737   HH bb 44054 44737 44054 44737
+  HH bb 44382 44737 44382 44737   HH bb 44407 44737 44407 44737
+  HH bb 44604 44737 44604 44737   II aa 44085 44737 44085 44737
+  II aa 44339 44737 44339 44737   II bb 43932 44737 43932 44737
+  II bb 44066 44737 44066 44737   II bb 44294 44737 44294 44737
+  II bb 44316 44737 44316 44737   II bb 44487 44737 44487 44737
+  JJ aa 43838 44737 43838 44737   JJ aa 43969 44737 43969 44737
+  JJ aa 44503 44737 44503 44737   JJ aa 44624 44737 44624 44737
+  JJ bb 43898 44737 43898 44737   JJ bb 44383 44737 44383 44737
+  JJ bb 44401 44737 44401 44737   JJ bb 44480 44737 44480 44737}
+
+do_execsql_test 1.5.1 {
+  SELECT a, b, sum(c) OVER (ORDER BY a  GROUPS BETWEEN 1 PRECEDING         AND 2 PRECEDING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa {}   AA aa {}   AA aa {}   AA aa {}   AA bb {}   AA bb {}   AA bb {}
+  AA bb {}   BB aa {}   BB aa {}   BB aa {}   BB aa {}   BB aa {}   BB aa {}
+  BB bb {}   BB bb {}   BB bb {}   BB bb {}   BB bb {}   BB bb {}   CC aa {}
+  CC aa {}   CC aa {}   CC aa {}   CC bb {}   CC bb {}   DD aa {}   DD aa {}
+  DD aa {}   DD bb {}   DD bb {}   DD bb {}   DD bb {}   EE aa {}   EE aa {}
+  EE bb {}   EE bb {}   EE bb {}   FF aa {}   FF aa {}   FF aa {}   FF aa {}
+  FF bb {}   FF bb {}   FF bb {}   FF bb {}   FF bb {}   FF bb {}   GG aa {}
+  GG aa {}   GG aa {}   GG aa {}   GG bb {}   GG bb {}   GG bb {}   GG bb {}
+  HH aa {}   HH aa {}   HH aa {}   HH bb {}   HH bb {}   HH bb {}   HH bb {}
+  HH bb {}   HH bb {}   II aa {}   II aa {}   II bb {}   II bb {}   II bb {}
+  II bb {}   II bb {}   JJ aa {}   JJ aa {}   JJ aa {}   JJ aa {}   JJ bb {}
+  JJ bb {}   JJ bb {}   JJ bb {}}
+
+do_execsql_test 1.5.2 {
+  SELECT a, b, sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN 1 PRECEDING         AND 2 PRECEDING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa {}   AA aa {}   AA aa {}   AA aa {}   AA bb {}   AA bb {}   AA bb {}
+  AA bb {}   BB aa {}   BB aa {}   BB aa {}   BB aa {}   BB aa {}   BB aa {}
+  BB bb {}   BB bb {}   BB bb {}   BB bb {}   BB bb {}   BB bb {}   CC aa {}
+  CC aa {}   CC aa {}   CC aa {}   CC bb {}   CC bb {}   DD aa {}   DD aa {}
+  DD aa {}   DD bb {}   DD bb {}   DD bb {}   DD bb {}   EE aa {}   EE aa {}
+  EE bb {}   EE bb {}   EE bb {}   FF aa {}   FF aa {}   FF aa {}   FF aa {}
+  FF bb {}   FF bb {}   FF bb {}   FF bb {}   FF bb {}   FF bb {}   GG aa {}
+  GG aa {}   GG aa {}   GG aa {}   GG bb {}   GG bb {}   GG bb {}   GG bb {}
+  HH aa {}   HH aa {}   HH aa {}   HH bb {}   HH bb {}   HH bb {}   HH bb {}
+  HH bb {}   HH bb {}   II aa {}   II aa {}   II bb {}   II bb {}   II bb {}
+  II bb {}   II bb {}   JJ aa {}   JJ aa {}   JJ aa {}   JJ aa {}   JJ bb {}
+  JJ bb {}   JJ bb {}   JJ bb {}}
+
+do_execsql_test 1.5.3 {
+  SELECT a, b, rank() OVER (ORDER BY a  GROUPS BETWEEN 1 PRECEDING         AND 2 PRECEDING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 1   AA aa 1   AA aa 1   AA aa 1   AA bb 1   AA bb 1   AA bb 1
+  AA bb 1   BB aa 9   BB aa 9   BB aa 9   BB aa 9   BB aa 9   BB aa 9
+  BB bb 9   BB bb 9   BB bb 9   BB bb 9   BB bb 9   BB bb 9   CC aa 21
+  CC aa 21   CC aa 21   CC aa 21   CC bb 21   CC bb 21   DD aa 27   DD aa 27
+  DD aa 27   DD bb 27   DD bb 27   DD bb 27   DD bb 27   EE aa 34   EE aa 34
+  EE bb 34   EE bb 34   EE bb 34   FF aa 39   FF aa 39   FF aa 39   FF aa 39
+  FF bb 39   FF bb 39   FF bb 39   FF bb 39   FF bb 39   FF bb 39   GG aa 49
+  GG aa 49   GG aa 49   GG aa 49   GG bb 49   GG bb 49   GG bb 49   GG bb 49
+  HH aa 57   HH aa 57   HH aa 57   HH bb 57   HH bb 57   HH bb 57   HH bb 57
+  HH bb 57   HH bb 57   II aa 66   II aa 66   II bb 66   II bb 66   II bb 66
+  II bb 66   II bb 66   JJ aa 73   JJ aa 73   JJ aa 73   JJ aa 73   JJ bb 73
+  JJ bb 73   JJ bb 73   JJ bb 73}
+
+do_execsql_test 1.5.4 {
+  SELECT a, b, max(c) OVER (ORDER BY a,b  GROUPS BETWEEN 1 PRECEDING         AND 2 PRECEDING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa {}   AA aa {}   AA aa {}   AA aa {}   AA bb {}   AA bb {}   AA bb {}
+  AA bb {}   BB aa {}   BB aa {}   BB aa {}   BB aa {}   BB aa {}   BB aa {}
+  BB bb {}   BB bb {}   BB bb {}   BB bb {}   BB bb {}   BB bb {}   CC aa {}
+  CC aa {}   CC aa {}   CC aa {}   CC bb {}   CC bb {}   DD aa {}   DD aa {}
+  DD aa {}   DD bb {}   DD bb {}   DD bb {}   DD bb {}   EE aa {}   EE aa {}
+  EE bb {}   EE bb {}   EE bb {}   FF aa {}   FF aa {}   FF aa {}   FF aa {}
+  FF bb {}   FF bb {}   FF bb {}   FF bb {}   FF bb {}   FF bb {}   GG aa {}
+  GG aa {}   GG aa {}   GG aa {}   GG bb {}   GG bb {}   GG bb {}   GG bb {}
+  HH aa {}   HH aa {}   HH aa {}   HH bb {}   HH bb {}   HH bb {}   HH bb {}
+  HH bb {}   HH bb {}   II aa {}   II aa {}   II bb {}   II bb {}   II bb {}
+  II bb {}   II bb {}   JJ aa {}   JJ aa {}   JJ aa {}   JJ aa {}   JJ bb {}
+  JJ bb {}   JJ bb {}   JJ bb {}}
+
+do_execsql_test 1.5.5 {
+  SELECT a, b, min(c) OVER (ORDER BY a,b  GROUPS BETWEEN 1 PRECEDING         AND 2 PRECEDING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa {}   AA aa {}   AA aa {}   AA aa {}   AA bb {}   AA bb {}   AA bb {}
+  AA bb {}   BB aa {}   BB aa {}   BB aa {}   BB aa {}   BB aa {}   BB aa {}
+  BB bb {}   BB bb {}   BB bb {}   BB bb {}   BB bb {}   BB bb {}   CC aa {}
+  CC aa {}   CC aa {}   CC aa {}   CC bb {}   CC bb {}   DD aa {}   DD aa {}
+  DD aa {}   DD bb {}   DD bb {}   DD bb {}   DD bb {}   EE aa {}   EE aa {}
+  EE bb {}   EE bb {}   EE bb {}   FF aa {}   FF aa {}   FF aa {}   FF aa {}
+  FF bb {}   FF bb {}   FF bb {}   FF bb {}   FF bb {}   FF bb {}   GG aa {}
+  GG aa {}   GG aa {}   GG aa {}   GG bb {}   GG bb {}   GG bb {}   GG bb {}
+  HH aa {}   HH aa {}   HH aa {}   HH bb {}   HH bb {}   HH bb {}   HH bb {}
+  HH bb {}   HH bb {}   II aa {}   II aa {}   II bb {}   II bb {}   II bb {}
+  II bb {}   II bb {}   JJ aa {}   JJ aa {}   JJ aa {}   JJ aa {}   JJ bb {}
+  JJ bb {}   JJ bb {}   JJ bb {}}
+
+do_execsql_test 1.5.6 {
+  SELECT a, b, sum(c) OVER (ORDER BY a  GROUPS BETWEEN 1 PRECEDING         AND 2 PRECEDING  EXCLUDE CURRENT ROW) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa {}   AA aa {}   AA aa {}   AA aa {}   AA bb {}   AA bb {}   AA bb {}
+  AA bb {}   BB aa {}   BB aa {}   BB aa {}   BB aa {}   BB aa {}   BB aa {}
+  BB bb {}   BB bb {}   BB bb {}   BB bb {}   BB bb {}   BB bb {}   CC aa {}
+  CC aa {}   CC aa {}   CC aa {}   CC bb {}   CC bb {}   DD aa {}   DD aa {}
+  DD aa {}   DD bb {}   DD bb {}   DD bb {}   DD bb {}   EE aa {}   EE aa {}
+  EE bb {}   EE bb {}   EE bb {}   FF aa {}   FF aa {}   FF aa {}   FF aa {}
+  FF bb {}   FF bb {}   FF bb {}   FF bb {}   FF bb {}   FF bb {}   GG aa {}
+  GG aa {}   GG aa {}   GG aa {}   GG bb {}   GG bb {}   GG bb {}   GG bb {}
+  HH aa {}   HH aa {}   HH aa {}   HH bb {}   HH bb {}   HH bb {}   HH bb {}
+  HH bb {}   HH bb {}   II aa {}   II aa {}   II bb {}   II bb {}   II bb {}
+  II bb {}   II bb {}   JJ aa {}   JJ aa {}   JJ aa {}   JJ aa {}   JJ bb {}
+  JJ bb {}   JJ bb {}   JJ bb {}}
+
+do_execsql_test 1.5.7 {
+  SELECT a, b, sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN 1 PRECEDING         AND 2 PRECEDING  EXCLUDE CURRENT ROW) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa {}   AA aa {}   AA aa {}   AA aa {}   AA bb {}   AA bb {}   AA bb {}
+  AA bb {}   BB aa {}   BB aa {}   BB aa {}   BB aa {}   BB aa {}   BB aa {}
+  BB bb {}   BB bb {}   BB bb {}   BB bb {}   BB bb {}   BB bb {}   CC aa {}
+  CC aa {}   CC aa {}   CC aa {}   CC bb {}   CC bb {}   DD aa {}   DD aa {}
+  DD aa {}   DD bb {}   DD bb {}   DD bb {}   DD bb {}   EE aa {}   EE aa {}
+  EE bb {}   EE bb {}   EE bb {}   FF aa {}   FF aa {}   FF aa {}   FF aa {}
+  FF bb {}   FF bb {}   FF bb {}   FF bb {}   FF bb {}   FF bb {}   GG aa {}
+  GG aa {}   GG aa {}   GG aa {}   GG bb {}   GG bb {}   GG bb {}   GG bb {}
+  HH aa {}   HH aa {}   HH aa {}   HH bb {}   HH bb {}   HH bb {}   HH bb {}
+  HH bb {}   HH bb {}   II aa {}   II aa {}   II bb {}   II bb {}   II bb {}
+  II bb {}   II bb {}   JJ aa {}   JJ aa {}   JJ aa {}   JJ aa {}   JJ bb {}
+  JJ bb {}   JJ bb {}   JJ bb {}}
+
+do_execsql_test 1.5.8 {
+  SELECT a, b, 
+      sum(c) OVER (ORDER BY a  GROUPS BETWEEN 1 PRECEDING         AND 2 PRECEDING  EXCLUDE CURRENT ROW),
+      sum(c) OVER (ORDER BY a  GROUPS BETWEEN 1 PRECEDING         AND 2 PRECEDING ),
+      sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN 1 PRECEDING         AND 2 PRECEDING  EXCLUDE CURRENT ROW),
+      sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN 1 PRECEDING         AND 2 PRECEDING )
+    FROM t3 ORDER BY 1, 2, 3;
+} {AA aa {} {} {} {}   AA aa {} {} {} {}   AA aa {} {} {} {}
+  AA aa {} {} {} {}   AA bb {} {} {} {}   AA bb {} {} {} {}
+  AA bb {} {} {} {}   AA bb {} {} {} {}   BB aa {} {} {} {}
+  BB aa {} {} {} {}   BB aa {} {} {} {}   BB aa {} {} {} {}
+  BB aa {} {} {} {}   BB aa {} {} {} {}   BB bb {} {} {} {}
+  BB bb {} {} {} {}   BB bb {} {} {} {}   BB bb {} {} {} {}
+  BB bb {} {} {} {}   BB bb {} {} {} {}   CC aa {} {} {} {}
+  CC aa {} {} {} {}   CC aa {} {} {} {}   CC aa {} {} {} {}
+  CC bb {} {} {} {}   CC bb {} {} {} {}   DD aa {} {} {} {}
+  DD aa {} {} {} {}   DD aa {} {} {} {}   DD bb {} {} {} {}
+  DD bb {} {} {} {}   DD bb {} {} {} {}   DD bb {} {} {} {}
+  EE aa {} {} {} {}   EE aa {} {} {} {}   EE bb {} {} {} {}
+  EE bb {} {} {} {}   EE bb {} {} {} {}   FF aa {} {} {} {}
+  FF aa {} {} {} {}   FF aa {} {} {} {}   FF aa {} {} {} {}
+  FF bb {} {} {} {}   FF bb {} {} {} {}   FF bb {} {} {} {}
+  FF bb {} {} {} {}   FF bb {} {} {} {}   FF bb {} {} {} {}
+  GG aa {} {} {} {}   GG aa {} {} {} {}   GG aa {} {} {} {}
+  GG aa {} {} {} {}   GG bb {} {} {} {}   GG bb {} {} {} {}
+  GG bb {} {} {} {}   GG bb {} {} {} {}   HH aa {} {} {} {}
+  HH aa {} {} {} {}   HH aa {} {} {} {}   HH bb {} {} {} {}
+  HH bb {} {} {} {}   HH bb {} {} {} {}   HH bb {} {} {} {}
+  HH bb {} {} {} {}   HH bb {} {} {} {}   II aa {} {} {} {}
+  II aa {} {} {} {}   II bb {} {} {} {}   II bb {} {} {} {}
+  II bb {} {} {} {}   II bb {} {} {} {}   II bb {} {} {} {}
+  JJ aa {} {} {} {}   JJ aa {} {} {} {}   JJ aa {} {} {} {}
+  JJ aa {} {} {} {}   JJ bb {} {} {} {}   JJ bb {} {} {} {}
+  JJ bb {} {} {} {}   JJ bb {} {} {} {}}
+
+do_execsql_test 1.6.1 {
+  SELECT a, b, sum(c) OVER (ORDER BY a  GROUPS BETWEEN 2 PRECEDING         AND 1 PRECEDING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa {}   AA aa {}   AA aa {}   AA aa {}   AA bb {}   AA bb {}   AA bb {}
+  AA bb {}   BB aa 4685   BB aa 4685   BB aa 4685   BB aa 4685   BB aa 4685
+  BB aa 4685   BB bb 4685   BB bb 4685   BB bb 4685   BB bb 4685   BB bb 4685
+  BB bb 4685   CC aa 12025   CC aa 12025   CC aa 12025   CC aa 12025
+  CC bb 12025   CC bb 12025   DD aa 10462   DD aa 10462   DD aa 10462
+  DD bb 10462   DD bb 10462   DD bb 10462   DD bb 10462   EE aa 7154
+  EE aa 7154   EE bb 7154   EE bb 7154   EE bb 7154   FF aa 6571   FF aa 6571
+  FF aa 6571   FF aa 6571   FF bb 6571   FF bb 6571   FF bb 6571   FF bb 6571
+  FF bb 6571   FF bb 6571   GG aa 8207   GG aa 8207   GG aa 8207   GG aa 8207
+  GG bb 8207   GG bb 8207   GG bb 8207   GG bb 8207   HH aa 10136
+  HH aa 10136   HH aa 10136   HH bb 10136   HH bb 10136   HH bb 10136
+  HH bb 10136   HH bb 10136   HH bb 10136   II aa 9911   II aa 9911
+  II bb 9911   II bb 9911   II bb 9911   II bb 9911   II bb 9911   JJ aa 9083
+  JJ aa 9083   JJ aa 9083   JJ aa 9083   JJ bb 9083   JJ bb 9083   JJ bb 9083
+  JJ bb 9083}
+
+do_execsql_test 1.6.2 {
+  SELECT a, b, sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN 2 PRECEDING         AND 1 PRECEDING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa {}   AA aa {}   AA aa {}   AA aa {}   AA bb 2307   AA bb 2307
+  AA bb 2307   AA bb 2307   BB aa 4685   BB aa 4685   BB aa 4685   BB aa 4685
+  BB aa 4685   BB aa 4685   BB bb 5251   BB bb 5251   BB bb 5251   BB bb 5251
+  BB bb 5251   BB bb 5251   CC aa 7340   CC aa 7340   CC aa 7340   CC aa 7340
+  CC bb 6421   CC bb 6421   DD aa 3122   DD aa 3122   DD aa 3122   DD bb 2493
+  DD bb 2493   DD bb 2493   DD bb 2493   EE aa 4032   EE aa 4032   EE bb 3597
+  EE bb 3597   EE bb 3597   FF aa 2539   FF aa 2539   FF aa 2539   FF aa 2539
+  FF bb 3812   FF bb 3812   FF bb 3812   FF bb 3812   FF bb 3812   FF bb 3812
+  GG aa 5668   GG aa 5668   GG aa 5668   GG aa 5668   GG bb 5102   GG bb 5102
+  GG bb 5102   GG bb 5102   HH aa 4468   HH aa 4468   HH aa 4468   HH bb 5120
+  HH bb 5120   HH bb 5120   HH bb 5120   HH bb 5120   HH bb 5120   II aa 5443
+  II aa 5443   II bb 4244   II bb 4244   II bb 4244   II bb 4244   II bb 4244
+  JJ aa 3640   JJ aa 3640   JJ aa 3640   JJ aa 3640   JJ bb 4604   JJ bb 4604
+  JJ bb 4604   JJ bb 4604}
+
+do_execsql_test 1.6.3 {
+  SELECT a, b, rank() OVER (ORDER BY a  GROUPS BETWEEN 2 PRECEDING         AND 1 PRECEDING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 1   AA aa 1   AA aa 1   AA aa 1   AA bb 1   AA bb 1   AA bb 1
+  AA bb 1   BB aa 9   BB aa 9   BB aa 9   BB aa 9   BB aa 9   BB aa 9
+  BB bb 9   BB bb 9   BB bb 9   BB bb 9   BB bb 9   BB bb 9   CC aa 21
+  CC aa 21   CC aa 21   CC aa 21   CC bb 21   CC bb 21   DD aa 27   DD aa 27
+  DD aa 27   DD bb 27   DD bb 27   DD bb 27   DD bb 27   EE aa 34   EE aa 34
+  EE bb 34   EE bb 34   EE bb 34   FF aa 39   FF aa 39   FF aa 39   FF aa 39
+  FF bb 39   FF bb 39   FF bb 39   FF bb 39   FF bb 39   FF bb 39   GG aa 49
+  GG aa 49   GG aa 49   GG aa 49   GG bb 49   GG bb 49   GG bb 49   GG bb 49
+  HH aa 57   HH aa 57   HH aa 57   HH bb 57   HH bb 57   HH bb 57   HH bb 57
+  HH bb 57   HH bb 57   II aa 66   II aa 66   II bb 66   II bb 66   II bb 66
+  II bb 66   II bb 66   JJ aa 73   JJ aa 73   JJ aa 73   JJ aa 73   JJ bb 73
+  JJ bb 73   JJ bb 73   JJ bb 73}
+
+do_execsql_test 1.6.4 {
+  SELECT a, b, max(c) OVER (ORDER BY a,b  GROUPS BETWEEN 2 PRECEDING         AND 1 PRECEDING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa {}   AA aa {}   AA aa {}   AA aa {}   AA bb 934   AA bb 934
+  AA bb 934   AA bb 934   BB aa 934   BB aa 934   BB aa 934   BB aa 934
+  BB aa 934   BB aa 934   BB bb 870   BB bb 870   BB bb 870   BB bb 870
+  BB bb 870   BB bb 870   CC aa 840   CC aa 840   CC aa 840   CC aa 840
+  CC bb 840   CC bb 840   DD aa 822   DD aa 822   DD aa 822   DD bb 845
+  DD bb 845   DD bb 845   DD bb 845   EE aa 959   EE aa 959   EE bb 959
+  EE bb 959   EE bb 959   FF aa 777   FF aa 777   FF aa 777   FF aa 777
+  FF bb 768   FF bb 768   FF bb 768   FF bb 768   FF bb 768   FF bb 768
+  GG aa 938   GG aa 938   GG aa 938   GG aa 938   GG bb 938   GG bb 938
+  GG bb 938   GG bb 938   HH aa 938   HH aa 938   HH aa 938   HH bb 979
+  HH bb 979   HH bb 979   HH bb 979   HH bb 979   HH bb 979   II aa 979
+  II aa 979   II bb 963   II bb 963   II bb 963   II bb 963   II bb 963
+  JJ aa 805   JJ aa 805   JJ aa 805   JJ aa 805   JJ bb 899   JJ bb 899
+  JJ bb 899   JJ bb 899}
+
+do_execsql_test 1.6.5 {
+  SELECT a, b, min(c) OVER (ORDER BY a,b  GROUPS BETWEEN 2 PRECEDING         AND 1 PRECEDING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa {}   AA aa {}   AA aa {}   AA aa {}   AA bb 223   AA bb 223
+  AA bb 223   AA bb 223   BB aa 223   BB aa 223   BB aa 223   BB aa 223
+  BB aa 223   BB aa 223   BB bb 247   BB bb 247   BB bb 247   BB bb 247
+  BB bb 247   BB bb 247   CC aa 247   CC aa 247   CC aa 247   CC aa 247
+  CC bb 158   CC bb 158   DD aa 158   DD aa 158   DD aa 158   DD bb 224
+  DD bb 224   DD bb 224   DD bb 224   EE aa 224   EE aa 224   EE bb 113
+  EE bb 113   EE bb 113   FF aa 113   FF aa 113   FF aa 113   FF aa 113
+  FF bb 208   FF bb 208   FF bb 208   FF bb 208   FF bb 208   FF bb 208
+  GG aa 102   GG aa 102   GG aa 102   GG aa 102   GG bb 102   GG bb 102
+  GG bb 102   GG bb 102   HH aa 148   HH aa 148   HH aa 148   HH bb 160
+  HH bb 160   HH bb 160   HH bb 160   HH bb 160   HH bb 160   II aa 133
+  II aa 133   II bb 133   II bb 133   II bb 133   II bb 133   II bb 133
+  JJ aa 250   JJ aa 250   JJ aa 250   JJ aa 250   JJ bb 113   JJ bb 113
+  JJ bb 113   JJ bb 113}
+
+do_execsql_test 1.6.6 {
+  SELECT a, b, sum(c) OVER (ORDER BY a  GROUPS BETWEEN 2 PRECEDING         AND 1 PRECEDING  EXCLUDE CURRENT ROW) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa {}   AA aa {}   AA aa {}   AA aa {}   AA bb {}   AA bb {}   AA bb {}
+  AA bb {}   BB aa 4685   BB aa 4685   BB aa 4685   BB aa 4685   BB aa 4685
+  BB aa 4685   BB bb 4685   BB bb 4685   BB bb 4685   BB bb 4685   BB bb 4685
+  BB bb 4685   CC aa 12025   CC aa 12025   CC aa 12025   CC aa 12025
+  CC bb 12025   CC bb 12025   DD aa 10462   DD aa 10462   DD aa 10462
+  DD bb 10462   DD bb 10462   DD bb 10462   DD bb 10462   EE aa 7154
+  EE aa 7154   EE bb 7154   EE bb 7154   EE bb 7154   FF aa 6571   FF aa 6571
+  FF aa 6571   FF aa 6571   FF bb 6571   FF bb 6571   FF bb 6571   FF bb 6571
+  FF bb 6571   FF bb 6571   GG aa 8207   GG aa 8207   GG aa 8207   GG aa 8207
+  GG bb 8207   GG bb 8207   GG bb 8207   GG bb 8207   HH aa 10136
+  HH aa 10136   HH aa 10136   HH bb 10136   HH bb 10136   HH bb 10136
+  HH bb 10136   HH bb 10136   HH bb 10136   II aa 9911   II aa 9911
+  II bb 9911   II bb 9911   II bb 9911   II bb 9911   II bb 9911   JJ aa 9083
+  JJ aa 9083   JJ aa 9083   JJ aa 9083   JJ bb 9083   JJ bb 9083   JJ bb 9083
+  JJ bb 9083}
+
+do_execsql_test 1.6.7 {
+  SELECT a, b, sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN 2 PRECEDING         AND 1 PRECEDING  EXCLUDE CURRENT ROW) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa {}   AA aa {}   AA aa {}   AA aa {}   AA bb 2307   AA bb 2307
+  AA bb 2307   AA bb 2307   BB aa 4685   BB aa 4685   BB aa 4685   BB aa 4685
+  BB aa 4685   BB aa 4685   BB bb 5251   BB bb 5251   BB bb 5251   BB bb 5251
+  BB bb 5251   BB bb 5251   CC aa 7340   CC aa 7340   CC aa 7340   CC aa 7340
+  CC bb 6421   CC bb 6421   DD aa 3122   DD aa 3122   DD aa 3122   DD bb 2493
+  DD bb 2493   DD bb 2493   DD bb 2493   EE aa 4032   EE aa 4032   EE bb 3597
+  EE bb 3597   EE bb 3597   FF aa 2539   FF aa 2539   FF aa 2539   FF aa 2539
+  FF bb 3812   FF bb 3812   FF bb 3812   FF bb 3812   FF bb 3812   FF bb 3812
+  GG aa 5668   GG aa 5668   GG aa 5668   GG aa 5668   GG bb 5102   GG bb 5102
+  GG bb 5102   GG bb 5102   HH aa 4468   HH aa 4468   HH aa 4468   HH bb 5120
+  HH bb 5120   HH bb 5120   HH bb 5120   HH bb 5120   HH bb 5120   II aa 5443
+  II aa 5443   II bb 4244   II bb 4244   II bb 4244   II bb 4244   II bb 4244
+  JJ aa 3640   JJ aa 3640   JJ aa 3640   JJ aa 3640   JJ bb 4604   JJ bb 4604
+  JJ bb 4604   JJ bb 4604}
+
+do_execsql_test 1.6.8 {
+  SELECT a, b, 
+      sum(c) OVER (ORDER BY a  GROUPS BETWEEN 2 PRECEDING         AND 1 PRECEDING  EXCLUDE CURRENT ROW),
+      sum(c) OVER (ORDER BY a  GROUPS BETWEEN 2 PRECEDING         AND 1 PRECEDING ),
+      sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN 2 PRECEDING         AND 1 PRECEDING  EXCLUDE CURRENT ROW),
+      sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN 2 PRECEDING         AND 1 PRECEDING )
+    FROM t3 ORDER BY 1, 2, 3;
+} {AA aa {} {} {} {}   AA aa {} {} {} {}   AA aa {} {} {} {}
+  AA aa {} {} {} {}   AA bb {} {} 2307 2307   AA bb {} {} 2307 2307
+  AA bb {} {} 2307 2307   AA bb {} {} 2307 2307   BB aa 4685 4685 4685 4685
+  BB aa 4685 4685 4685 4685   BB aa 4685 4685 4685 4685
+  BB aa 4685 4685 4685 4685   BB aa 4685 4685 4685 4685
+  BB aa 4685 4685 4685 4685   BB bb 4685 4685 5251 5251
+  BB bb 4685 4685 5251 5251   BB bb 4685 4685 5251 5251
+  BB bb 4685 4685 5251 5251   BB bb 4685 4685 5251 5251
+  BB bb 4685 4685 5251 5251   CC aa 12025 12025 7340 7340
+  CC aa 12025 12025 7340 7340   CC aa 12025 12025 7340 7340
+  CC aa 12025 12025 7340 7340   CC bb 12025 12025 6421 6421
+  CC bb 12025 12025 6421 6421   DD aa 10462 10462 3122 3122
+  DD aa 10462 10462 3122 3122   DD aa 10462 10462 3122 3122
+  DD bb 10462 10462 2493 2493   DD bb 10462 10462 2493 2493
+  DD bb 10462 10462 2493 2493   DD bb 10462 10462 2493 2493
+  EE aa 7154 7154 4032 4032   EE aa 7154 7154 4032 4032
+  EE bb 7154 7154 3597 3597   EE bb 7154 7154 3597 3597
+  EE bb 7154 7154 3597 3597   FF aa 6571 6571 2539 2539
+  FF aa 6571 6571 2539 2539   FF aa 6571 6571 2539 2539
+  FF aa 6571 6571 2539 2539   FF bb 6571 6571 3812 3812
+  FF bb 6571 6571 3812 3812   FF bb 6571 6571 3812 3812
+  FF bb 6571 6571 3812 3812   FF bb 6571 6571 3812 3812
+  FF bb 6571 6571 3812 3812   GG aa 8207 8207 5668 5668
+  GG aa 8207 8207 5668 5668   GG aa 8207 8207 5668 5668
+  GG aa 8207 8207 5668 5668   GG bb 8207 8207 5102 5102
+  GG bb 8207 8207 5102 5102   GG bb 8207 8207 5102 5102
+  GG bb 8207 8207 5102 5102   HH aa 10136 10136 4468 4468
+  HH aa 10136 10136 4468 4468   HH aa 10136 10136 4468 4468
+  HH bb 10136 10136 5120 5120   HH bb 10136 10136 5120 5120
+  HH bb 10136 10136 5120 5120   HH bb 10136 10136 5120 5120
+  HH bb 10136 10136 5120 5120   HH bb 10136 10136 5120 5120
+  II aa 9911 9911 5443 5443   II aa 9911 9911 5443 5443
+  II bb 9911 9911 4244 4244   II bb 9911 9911 4244 4244
+  II bb 9911 9911 4244 4244   II bb 9911 9911 4244 4244
+  II bb 9911 9911 4244 4244   JJ aa 9083 9083 3640 3640
+  JJ aa 9083 9083 3640 3640   JJ aa 9083 9083 3640 3640
+  JJ aa 9083 9083 3640 3640   JJ bb 9083 9083 4604 4604
+  JJ bb 9083 9083 4604 4604   JJ bb 9083 9083 4604 4604
+  JJ bb 9083 9083 4604 4604}
+
+do_execsql_test 1.7.1 {
+  SELECT a, b, sum(c) OVER (ORDER BY a  GROUPS BETWEEN 3 PRECEDING         AND 1 PRECEDING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa {}   AA aa {}   AA aa {}   AA aa {}   AA bb {}   AA bb {}   AA bb {}
+  AA bb {}   BB aa 4685   BB aa 4685   BB aa 4685   BB aa 4685   BB aa 4685
+  BB aa 4685   BB bb 4685   BB bb 4685   BB bb 4685   BB bb 4685   BB bb 4685
+  BB bb 4685   CC aa 12025   CC aa 12025   CC aa 12025   CC aa 12025
+  CC bb 12025   CC bb 12025   DD aa 15147   DD aa 15147   DD aa 15147
+  DD bb 15147   DD bb 15147   DD bb 15147   DD bb 15147   EE aa 14494
+  EE aa 14494   EE bb 14494   EE bb 14494   EE bb 14494   FF aa 9693
+  FF aa 9693   FF aa 9693   FF aa 9693   FF bb 9693   FF bb 9693   FF bb 9693
+  FF bb 9693   FF bb 9693   FF bb 9693   GG aa 12239   GG aa 12239
+  GG aa 12239   GG aa 12239   GG bb 12239   GG bb 12239   GG bb 12239
+  GG bb 12239   HH aa 12675   HH aa 12675   HH aa 12675   HH bb 12675
+  HH bb 12675   HH bb 12675   HH bb 12675   HH bb 12675   HH bb 12675
+  II aa 15579   II aa 15579   II bb 15579   II bb 15579   II bb 15579
+  II bb 15579   II bb 15579   JJ aa 13551   JJ aa 13551   JJ aa 13551
+  JJ aa 13551   JJ bb 13551   JJ bb 13551   JJ bb 13551   JJ bb 13551}
+
+do_execsql_test 1.7.2 {
+  SELECT a, b, sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN 3 PRECEDING         AND 1 PRECEDING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa {}   AA aa {}   AA aa {}   AA aa {}   AA bb 2307   AA bb 2307
+  AA bb 2307   AA bb 2307   BB aa 4685   BB aa 4685   BB aa 4685   BB aa 4685
+  BB aa 4685   BB aa 4685   BB bb 7558   BB bb 7558   BB bb 7558   BB bb 7558
+  BB bb 7558   BB bb 7558   CC aa 9718   CC aa 9718   CC aa 9718   CC aa 9718
+  CC bb 9294   CC bb 9294   DD aa 7589   DD aa 7589   DD aa 7589   DD bb 4447
+  DD bb 4447   DD bb 4447   DD bb 4447   EE aa 5200   EE aa 5200   EE bb 4922
+  EE bb 4922   EE bb 4922   FF aa 5246   FF aa 5246   FF aa 5246   FF aa 5246
+  FF bb 4702   FF bb 4702   FF bb 4702   FF bb 4702   FF bb 4702   FF bb 4702
+  GG aa 7317   GG aa 7317   GG aa 7317   GG aa 7317   GG bb 7265   GG bb 7265
+  GG bb 7265   GG bb 7265   HH aa 7973   HH aa 7973   HH aa 7973   HH bb 6717
+  HH bb 6717   HH bb 6717   HH bb 6717   HH bb 6717   HH bb 6717   II aa 8314
+  II aa 8314   II bb 6493   II bb 6493   II bb 6493   II bb 6493   II bb 6493
+  JJ aa 6834   JJ aa 6834   JJ aa 6834   JJ aa 6834   JJ bb 5654   JJ bb 5654
+  JJ bb 5654   JJ bb 5654}
+
+do_execsql_test 1.7.3 {
+  SELECT a, b, rank() OVER (ORDER BY a  GROUPS BETWEEN 3 PRECEDING         AND 1 PRECEDING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 1   AA aa 1   AA aa 1   AA aa 1   AA bb 1   AA bb 1   AA bb 1
+  AA bb 1   BB aa 9   BB aa 9   BB aa 9   BB aa 9   BB aa 9   BB aa 9
+  BB bb 9   BB bb 9   BB bb 9   BB bb 9   BB bb 9   BB bb 9   CC aa 21
+  CC aa 21   CC aa 21   CC aa 21   CC bb 21   CC bb 21   DD aa 27   DD aa 27
+  DD aa 27   DD bb 27   DD bb 27   DD bb 27   DD bb 27   EE aa 34   EE aa 34
+  EE bb 34   EE bb 34   EE bb 34   FF aa 39   FF aa 39   FF aa 39   FF aa 39
+  FF bb 39   FF bb 39   FF bb 39   FF bb 39   FF bb 39   FF bb 39   GG aa 49
+  GG aa 49   GG aa 49   GG aa 49   GG bb 49   GG bb 49   GG bb 49   GG bb 49
+  HH aa 57   HH aa 57   HH aa 57   HH bb 57   HH bb 57   HH bb 57   HH bb 57
+  HH bb 57   HH bb 57   II aa 66   II aa 66   II bb 66   II bb 66   II bb 66
+  II bb 66   II bb 66   JJ aa 73   JJ aa 73   JJ aa 73   JJ aa 73   JJ bb 73
+  JJ bb 73   JJ bb 73   JJ bb 73}
+
+do_execsql_test 1.7.4 {
+  SELECT a, b, max(c) OVER (ORDER BY a,b  GROUPS BETWEEN 3 PRECEDING         AND 1 PRECEDING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa {}   AA aa {}   AA aa {}   AA aa {}   AA bb 934   AA bb 934
+  AA bb 934   AA bb 934   BB aa 934   BB aa 934   BB aa 934   BB aa 934
+  BB aa 934   BB aa 934   BB bb 934   BB bb 934   BB bb 934   BB bb 934
+  BB bb 934   BB bb 934   CC aa 870   CC aa 870   CC aa 870   CC aa 870
+  CC bb 840   CC bb 840   DD aa 840   DD aa 840   DD aa 840   DD bb 845
+  DD bb 845   DD bb 845   DD bb 845   EE aa 959   EE aa 959   EE bb 959
+  EE bb 959   EE bb 959   FF aa 959   FF aa 959   FF aa 959   FF aa 959
+  FF bb 777   FF bb 777   FF bb 777   FF bb 777   FF bb 777   FF bb 777
+  GG aa 938   GG aa 938   GG aa 938   GG aa 938   GG bb 938   GG bb 938
+  GG bb 938   GG bb 938   HH aa 938   HH aa 938   HH aa 938   HH bb 979
+  HH bb 979   HH bb 979   HH bb 979   HH bb 979   HH bb 979   II aa 979
+  II aa 979   II bb 979   II bb 979   II bb 979   II bb 979   II bb 979
+  JJ aa 963   JJ aa 963   JJ aa 963   JJ aa 963   JJ bb 899   JJ bb 899
+  JJ bb 899   JJ bb 899}
+
+do_execsql_test 1.7.5 {
+  SELECT a, b, min(c) OVER (ORDER BY a,b  GROUPS BETWEEN 3 PRECEDING         AND 1 PRECEDING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa {}   AA aa {}   AA aa {}   AA aa {}   AA bb 223   AA bb 223
+  AA bb 223   AA bb 223   BB aa 223   BB aa 223   BB aa 223   BB aa 223
+  BB aa 223   BB aa 223   BB bb 223   BB bb 223   BB bb 223   BB bb 223
+  BB bb 223   BB bb 223   CC aa 247   CC aa 247   CC aa 247   CC aa 247
+  CC bb 158   CC bb 158   DD aa 158   DD aa 158   DD aa 158   DD bb 158
+  DD bb 158   DD bb 158   DD bb 158   EE aa 224   EE aa 224   EE bb 113
+  EE bb 113   EE bb 113   FF aa 113   FF aa 113   FF aa 113   FF aa 113
+  FF bb 113   FF bb 113   FF bb 113   FF bb 113   FF bb 113   FF bb 113
+  GG aa 102   GG aa 102   GG aa 102   GG aa 102   GG bb 102   GG bb 102
+  GG bb 102   GG bb 102   HH aa 102   HH aa 102   HH aa 102   HH bb 148
+  HH bb 148   HH bb 148   HH bb 148   HH bb 148   HH bb 148   II aa 133
+  II aa 133   II bb 133   II bb 133   II bb 133   II bb 133   II bb 133
+  JJ aa 133   JJ aa 133   JJ aa 133   JJ aa 133   JJ bb 113   JJ bb 113
+  JJ bb 113   JJ bb 113}
+
+do_execsql_test 1.7.6 {
+  SELECT a, b, sum(c) OVER (ORDER BY a  GROUPS BETWEEN 3 PRECEDING         AND 1 PRECEDING  EXCLUDE CURRENT ROW) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa {}   AA aa {}   AA aa {}   AA aa {}   AA bb {}   AA bb {}   AA bb {}
+  AA bb {}   BB aa 4685   BB aa 4685   BB aa 4685   BB aa 4685   BB aa 4685
+  BB aa 4685   BB bb 4685   BB bb 4685   BB bb 4685   BB bb 4685   BB bb 4685
+  BB bb 4685   CC aa 12025   CC aa 12025   CC aa 12025   CC aa 12025
+  CC bb 12025   CC bb 12025   DD aa 15147   DD aa 15147   DD aa 15147
+  DD bb 15147   DD bb 15147   DD bb 15147   DD bb 15147   EE aa 14494
+  EE aa 14494   EE bb 14494   EE bb 14494   EE bb 14494   FF aa 9693
+  FF aa 9693   FF aa 9693   FF aa 9693   FF bb 9693   FF bb 9693   FF bb 9693
+  FF bb 9693   FF bb 9693   FF bb 9693   GG aa 12239   GG aa 12239
+  GG aa 12239   GG aa 12239   GG bb 12239   GG bb 12239   GG bb 12239
+  GG bb 12239   HH aa 12675   HH aa 12675   HH aa 12675   HH bb 12675
+  HH bb 12675   HH bb 12675   HH bb 12675   HH bb 12675   HH bb 12675
+  II aa 15579   II aa 15579   II bb 15579   II bb 15579   II bb 15579
+  II bb 15579   II bb 15579   JJ aa 13551   JJ aa 13551   JJ aa 13551
+  JJ aa 13551   JJ bb 13551   JJ bb 13551   JJ bb 13551   JJ bb 13551}
+
+do_execsql_test 1.7.7 {
+  SELECT a, b, sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN 3 PRECEDING         AND 1 PRECEDING  EXCLUDE CURRENT ROW) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa {}   AA aa {}   AA aa {}   AA aa {}   AA bb 2307   AA bb 2307
+  AA bb 2307   AA bb 2307   BB aa 4685   BB aa 4685   BB aa 4685   BB aa 4685
+  BB aa 4685   BB aa 4685   BB bb 7558   BB bb 7558   BB bb 7558   BB bb 7558
+  BB bb 7558   BB bb 7558   CC aa 9718   CC aa 9718   CC aa 9718   CC aa 9718
+  CC bb 9294   CC bb 9294   DD aa 7589   DD aa 7589   DD aa 7589   DD bb 4447
+  DD bb 4447   DD bb 4447   DD bb 4447   EE aa 5200   EE aa 5200   EE bb 4922
+  EE bb 4922   EE bb 4922   FF aa 5246   FF aa 5246   FF aa 5246   FF aa 5246
+  FF bb 4702   FF bb 4702   FF bb 4702   FF bb 4702   FF bb 4702   FF bb 4702
+  GG aa 7317   GG aa 7317   GG aa 7317   GG aa 7317   GG bb 7265   GG bb 7265
+  GG bb 7265   GG bb 7265   HH aa 7973   HH aa 7973   HH aa 7973   HH bb 6717
+  HH bb 6717   HH bb 6717   HH bb 6717   HH bb 6717   HH bb 6717   II aa 8314
+  II aa 8314   II bb 6493   II bb 6493   II bb 6493   II bb 6493   II bb 6493
+  JJ aa 6834   JJ aa 6834   JJ aa 6834   JJ aa 6834   JJ bb 5654   JJ bb 5654
+  JJ bb 5654   JJ bb 5654}
+
+do_execsql_test 1.7.8 {
+  SELECT a, b, 
+      sum(c) OVER (ORDER BY a  GROUPS BETWEEN 3 PRECEDING         AND 1 PRECEDING  EXCLUDE CURRENT ROW),
+      sum(c) OVER (ORDER BY a  GROUPS BETWEEN 3 PRECEDING         AND 1 PRECEDING ),
+      sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN 3 PRECEDING         AND 1 PRECEDING  EXCLUDE CURRENT ROW),
+      sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN 3 PRECEDING         AND 1 PRECEDING )
+    FROM t3 ORDER BY 1, 2, 3;
+} {AA aa {} {} {} {}   AA aa {} {} {} {}   AA aa {} {} {} {}
+  AA aa {} {} {} {}   AA bb {} {} 2307 2307   AA bb {} {} 2307 2307
+  AA bb {} {} 2307 2307   AA bb {} {} 2307 2307   BB aa 4685 4685 4685 4685
+  BB aa 4685 4685 4685 4685   BB aa 4685 4685 4685 4685
+  BB aa 4685 4685 4685 4685   BB aa 4685 4685 4685 4685
+  BB aa 4685 4685 4685 4685   BB bb 4685 4685 7558 7558
+  BB bb 4685 4685 7558 7558   BB bb 4685 4685 7558 7558
+  BB bb 4685 4685 7558 7558   BB bb 4685 4685 7558 7558
+  BB bb 4685 4685 7558 7558   CC aa 12025 12025 9718 9718
+  CC aa 12025 12025 9718 9718   CC aa 12025 12025 9718 9718
+  CC aa 12025 12025 9718 9718   CC bb 12025 12025 9294 9294
+  CC bb 12025 12025 9294 9294   DD aa 15147 15147 7589 7589
+  DD aa 15147 15147 7589 7589   DD aa 15147 15147 7589 7589
+  DD bb 15147 15147 4447 4447   DD bb 15147 15147 4447 4447
+  DD bb 15147 15147 4447 4447   DD bb 15147 15147 4447 4447
+  EE aa 14494 14494 5200 5200   EE aa 14494 14494 5200 5200
+  EE bb 14494 14494 4922 4922   EE bb 14494 14494 4922 4922
+  EE bb 14494 14494 4922 4922   FF aa 9693 9693 5246 5246
+  FF aa 9693 9693 5246 5246   FF aa 9693 9693 5246 5246
+  FF aa 9693 9693 5246 5246   FF bb 9693 9693 4702 4702
+  FF bb 9693 9693 4702 4702   FF bb 9693 9693 4702 4702
+  FF bb 9693 9693 4702 4702   FF bb 9693 9693 4702 4702
+  FF bb 9693 9693 4702 4702   GG aa 12239 12239 7317 7317
+  GG aa 12239 12239 7317 7317   GG aa 12239 12239 7317 7317
+  GG aa 12239 12239 7317 7317   GG bb 12239 12239 7265 7265
+  GG bb 12239 12239 7265 7265   GG bb 12239 12239 7265 7265
+  GG bb 12239 12239 7265 7265   HH aa 12675 12675 7973 7973
+  HH aa 12675 12675 7973 7973   HH aa 12675 12675 7973 7973
+  HH bb 12675 12675 6717 6717   HH bb 12675 12675 6717 6717
+  HH bb 12675 12675 6717 6717   HH bb 12675 12675 6717 6717
+  HH bb 12675 12675 6717 6717   HH bb 12675 12675 6717 6717
+  II aa 15579 15579 8314 8314   II aa 15579 15579 8314 8314
+  II bb 15579 15579 6493 6493   II bb 15579 15579 6493 6493
+  II bb 15579 15579 6493 6493   II bb 15579 15579 6493 6493
+  II bb 15579 15579 6493 6493   JJ aa 13551 13551 6834 6834
+  JJ aa 13551 13551 6834 6834   JJ aa 13551 13551 6834 6834
+  JJ aa 13551 13551 6834 6834   JJ bb 13551 13551 5654 5654
+  JJ bb 13551 13551 5654 5654   JJ bb 13551 13551 5654 5654
+  JJ bb 13551 13551 5654 5654}
+
+do_execsql_test 1.8.1 {
+  SELECT a, b, sum(c) OVER (ORDER BY a  GROUPS BETWEEN 3 PRECEDING         AND 0 PRECEDING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 4685   AA aa 4685   AA aa 4685   AA aa 4685   AA bb 4685   AA bb 4685
+  AA bb 4685   AA bb 4685   BB aa 12025   BB aa 12025   BB aa 12025
+  BB aa 12025   BB aa 12025   BB aa 12025   BB bb 12025   BB bb 12025
+  BB bb 12025   BB bb 12025   BB bb 12025   BB bb 12025   CC aa 15147
+  CC aa 15147   CC aa 15147   CC aa 15147   CC bb 15147   CC bb 15147
+  DD aa 19179   DD aa 19179   DD aa 19179   DD bb 19179   DD bb 19179
+  DD bb 19179   DD bb 19179   EE aa 17033   EE aa 17033   EE bb 17033
+  EE bb 17033   EE bb 17033   FF aa 15361   FF aa 15361   FF aa 15361
+  FF aa 15361   FF bb 15361   FF bb 15361   FF bb 15361   FF bb 15361
+  FF bb 15361   FF bb 15361   GG aa 16707   GG aa 16707   GG aa 16707
+  GG aa 16707   GG bb 16707   GG bb 16707   GG bb 16707   GG bb 16707
+  HH aa 18118   HH aa 18118   HH aa 18118   HH bb 18118   HH bb 18118
+  HH bb 18118   HH bb 18118   HH bb 18118   HH bb 18118   II aa 19219
+  II aa 19219   II bb 19219   II bb 19219   II bb 19219   II bb 19219
+  II bb 19219   JJ aa 17351   JJ aa 17351   JJ aa 17351   JJ aa 17351
+  JJ bb 17351   JJ bb 17351   JJ bb 17351   JJ bb 17351}
+
+do_execsql_test 1.8.2 {
+  SELECT a, b, sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN 3 PRECEDING         AND 0 PRECEDING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 2307   AA aa 2307   AA aa 2307   AA aa 2307   AA bb 4685   AA bb 4685
+  AA bb 4685   AA bb 4685   BB aa 7558   BB aa 7558   BB aa 7558   BB aa 7558
+  BB aa 7558   BB aa 7558   BB bb 12025   BB bb 12025   BB bb 12025
+  BB bb 12025   BB bb 12025   BB bb 12025   CC aa 11672   CC aa 11672
+  CC aa 11672   CC aa 11672   CC bb 10462   CC bb 10462   DD aa 8914
+  DD aa 8914   DD aa 8914   DD bb 7154   DD bb 7154   DD bb 7154   DD bb 7154
+  EE aa 6090   EE aa 6090   EE bb 6571   EE bb 6571   EE bb 6571   FF aa 7409
+  FF aa 7409   FF aa 7409   FF aa 7409   FF bb 8207   FF bb 8207   FF bb 8207
+  FF bb 8207   FF bb 8207   FF bb 8207   GG aa 8914   GG aa 8914   GG aa 8914
+  GG aa 8914   GG bb 10136   GG bb 10136   GG bb 10136   GG bb 10136
+  HH aa 10222   HH aa 10222   HH aa 10222   HH bb 9911   HH bb 9911
+  HH bb 9911   HH bb 9911   HH bb 9911   HH bb 9911   II aa 9364   II aa 9364
+  II bb 9083   II bb 9083   II bb 9083   II bb 9083   II bb 9083   JJ aa 8848
+  JJ aa 8848   JJ aa 8848   JJ aa 8848   JJ bb 7440   JJ bb 7440   JJ bb 7440
+  JJ bb 7440}
+
+do_execsql_test 1.8.3 {
+  SELECT a, b, rank() OVER (ORDER BY a  GROUPS BETWEEN 3 PRECEDING         AND 0 PRECEDING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 1   AA aa 1   AA aa 1   AA aa 1   AA bb 1   AA bb 1   AA bb 1
+  AA bb 1   BB aa 9   BB aa 9   BB aa 9   BB aa 9   BB aa 9   BB aa 9
+  BB bb 9   BB bb 9   BB bb 9   BB bb 9   BB bb 9   BB bb 9   CC aa 21
+  CC aa 21   CC aa 21   CC aa 21   CC bb 21   CC bb 21   DD aa 27   DD aa 27
+  DD aa 27   DD bb 27   DD bb 27   DD bb 27   DD bb 27   EE aa 34   EE aa 34
+  EE bb 34   EE bb 34   EE bb 34   FF aa 39   FF aa 39   FF aa 39   FF aa 39
+  FF bb 39   FF bb 39   FF bb 39   FF bb 39   FF bb 39   FF bb 39   GG aa 49
+  GG aa 49   GG aa 49   GG aa 49   GG bb 49   GG bb 49   GG bb 49   GG bb 49
+  HH aa 57   HH aa 57   HH aa 57   HH bb 57   HH bb 57   HH bb 57   HH bb 57
+  HH bb 57   HH bb 57   II aa 66   II aa 66   II bb 66   II bb 66   II bb 66
+  II bb 66   II bb 66   JJ aa 73   JJ aa 73   JJ aa 73   JJ aa 73   JJ bb 73
+  JJ bb 73   JJ bb 73   JJ bb 73}
+
+do_execsql_test 1.8.4 {
+  SELECT a, b, max(c) OVER (ORDER BY a,b  GROUPS BETWEEN 3 PRECEDING         AND 0 PRECEDING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 934   AA aa 934   AA aa 934   AA aa 934   AA bb 934   AA bb 934
+  AA bb 934   AA bb 934   BB aa 934   BB aa 934   BB aa 934   BB aa 934
+  BB aa 934   BB aa 934   BB bb 934   BB bb 934   BB bb 934   BB bb 934
+  BB bb 934   BB bb 934   CC aa 870   CC aa 870   CC aa 870   CC aa 870
+  CC bb 840   CC bb 840   DD aa 845   DD aa 845   DD aa 845   DD bb 959
+  DD bb 959   DD bb 959   DD bb 959   EE aa 959   EE aa 959   EE bb 959
+  EE bb 959   EE bb 959   FF aa 959   FF aa 959   FF aa 959   FF aa 959
+  FF bb 938   FF bb 938   FF bb 938   FF bb 938   FF bb 938   FF bb 938
+  GG aa 938   GG aa 938   GG aa 938   GG aa 938   GG bb 938   GG bb 938
+  GG bb 938   GG bb 938   HH aa 979   HH aa 979   HH aa 979   HH bb 979
+  HH bb 979   HH bb 979   HH bb 979   HH bb 979   HH bb 979   II aa 979
+  II aa 979   II bb 979   II bb 979   II bb 979   II bb 979   II bb 979
+  JJ aa 963   JJ aa 963   JJ aa 963   JJ aa 963   JJ bb 899   JJ bb 899
+  JJ bb 899   JJ bb 899}
+
+do_execsql_test 1.8.5 {
+  SELECT a, b, min(c) OVER (ORDER BY a,b  GROUPS BETWEEN 3 PRECEDING         AND 0 PRECEDING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 223   AA aa 223   AA aa 223   AA aa 223   AA bb 223   AA bb 223
+  AA bb 223   AA bb 223   BB aa 223   BB aa 223   BB aa 223   BB aa 223
+  BB aa 223   BB aa 223   BB bb 223   BB bb 223   BB bb 223   BB bb 223
+  BB bb 223   BB bb 223   CC aa 158   CC aa 158   CC aa 158   CC aa 158
+  CC bb 158   CC bb 158   DD aa 158   DD aa 158   DD aa 158   DD bb 158
+  DD bb 158   DD bb 158   DD bb 158   EE aa 113   EE aa 113   EE bb 113
+  EE bb 113   EE bb 113   FF aa 113   FF aa 113   FF aa 113   FF aa 113
+  FF bb 102   FF bb 102   FF bb 102   FF bb 102   FF bb 102   FF bb 102
+  GG aa 102   GG aa 102   GG aa 102   GG aa 102   GG bb 102   GG bb 102
+  GG bb 102   GG bb 102   HH aa 102   HH aa 102   HH aa 102   HH bb 133
+  HH bb 133   HH bb 133   HH bb 133   HH bb 133   HH bb 133   II aa 133
+  II aa 133   II bb 133   II bb 133   II bb 133   II bb 133   II bb 133
+  JJ aa 113   JJ aa 113   JJ aa 113   JJ aa 113   JJ bb 113   JJ bb 113
+  JJ bb 113   JJ bb 113}
+
+do_execsql_test 1.8.6 {
+  SELECT a, b, sum(c) OVER (ORDER BY a  GROUPS BETWEEN 3 PRECEDING         AND 0 PRECEDING  EXCLUDE CURRENT ROW) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 3751   AA aa 3774   AA aa 4446   AA aa 4462   AA bb 3815   AA bb 4058
+  AA bb 4113   AA bb 4376   BB aa 11263   BB aa 11365   BB aa 11613
+  BB aa 11626   BB aa 11632   BB aa 11778   BB bb 11185   BB bb 11233
+  BB bb 11239   BB bb 11314   BB bb 11320   BB bb 11392   CC aa 14388
+  CC aa 14540   CC aa 14717   CC aa 14989   CC bb 14325   CC bb 14801
+  DD aa 18334   DD aa 18923   DD aa 18955   DD bb 18220   DD bb 18385
+  DD bb 18463   DD bb 18941   EE aa 16256   EE aa 16920   EE bb 16265
+  EE bb 16404   EE bb 16781   FF aa 14691   FF aa 14694   FF aa 14743
+  FF aa 15153   FF bb 14423   FF bb 14491   FF bb 14635   FF bb 14787
+  FF bb 15066   FF bb 15259   GG aa 16073   GG aa 16227   GG aa 16372
+  GG aa 16559   GG bb 15769   GG bb 15778   GG bb 15863   GG bb 16547
+  HH aa 17139   HH aa 17328   HH aa 17638   HH bb 17155   HH bb 17388
+  HH bb 17435   HH bb 17763   HH bb 17788   HH bb 17985   II aa 18567
+  II aa 18821   II bb 18414   II bb 18548   II bb 18776   II bb 18798
+  II bb 18969   JJ aa 16452   JJ aa 16583   JJ aa 17117   JJ aa 17238
+  JJ bb 16512   JJ bb 16997   JJ bb 17015   JJ bb 17094}
+
+do_execsql_test 1.8.7 {
+  SELECT a, b, sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN 3 PRECEDING         AND 0 PRECEDING  EXCLUDE CURRENT ROW) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 1373   AA aa 1396   AA aa 2068   AA aa 2084   AA bb 3815   AA bb 4058
+  AA bb 4113   AA bb 4376   BB aa 6796   BB aa 6898   BB aa 7146   BB aa 7159
+  BB aa 7165   BB aa 7311   BB bb 11185   BB bb 11233   BB bb 11239
+  BB bb 11314   BB bb 11320   BB bb 11392   CC aa 10913   CC aa 11065
+  CC aa 11242   CC aa 11514   CC bb 9640   CC bb 10116   DD aa 8069
+  DD aa 8658   DD aa 8690   DD bb 6195   DD bb 6360   DD bb 6438   DD bb 6916
+  EE aa 5313   EE aa 5977   EE bb 5803   EE bb 5942   EE bb 6319   FF aa 6739
+  FF aa 6742   FF aa 6791   FF aa 7201   FF bb 7269   FF bb 7337   FF bb 7481
+  FF bb 7633   FF bb 7912   FF bb 8105   GG aa 8280   GG aa 8434   GG aa 8579
+  GG aa 8766   GG bb 9198   GG bb 9207   GG bb 9292   GG bb 9976   HH aa 9243
+  HH aa 9432   HH aa 9742   HH bb 8948   HH bb 9181   HH bb 9228   HH bb 9556
+  HH bb 9581   HH bb 9778   II aa 8712   II aa 8966   II bb 8278   II bb 8412
+  II bb 8640   II bb 8662   II bb 8833   JJ aa 7949   JJ aa 8080   JJ aa 8614
+  JJ aa 8735   JJ bb 6601   JJ bb 7086   JJ bb 7104   JJ bb 7183}
+
+do_execsql_test 1.8.8 {
+  SELECT a, b, 
+      sum(c) OVER (ORDER BY a  GROUPS BETWEEN 3 PRECEDING         AND 0 PRECEDING  EXCLUDE CURRENT ROW),
+      sum(c) OVER (ORDER BY a  GROUPS BETWEEN 3 PRECEDING         AND 0 PRECEDING ),
+      sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN 3 PRECEDING         AND 0 PRECEDING  EXCLUDE CURRENT ROW),
+      sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN 3 PRECEDING         AND 0 PRECEDING )
+    FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 3751 4685 1373 2307   AA aa 3774 4685 1396 2307
+  AA aa 4446 4685 2068 2307   AA aa 4462 4685 2084 2307
+  AA bb 3815 4685 3815 4685   AA bb 4058 4685 4058 4685
+  AA bb 4113 4685 4113 4685   AA bb 4376 4685 4376 4685
+  BB aa 11263 12025 6796 7558   BB aa 11365 12025 6898 7558
+  BB aa 11613 12025 7146 7558   BB aa 11626 12025 7159 7558
+  BB aa 11632 12025 7165 7558   BB aa 11778 12025 7311 7558
+  BB bb 11185 12025 11185 12025   BB bb 11233 12025 11233 12025
+  BB bb 11239 12025 11239 12025   BB bb 11314 12025 11314 12025
+  BB bb 11320 12025 11320 12025   BB bb 11392 12025 11392 12025
+  CC aa 14388 15147 10913 11672   CC aa 14540 15147 11065 11672
+  CC aa 14717 15147 11242 11672   CC aa 14989 15147 11514 11672
+  CC bb 14325 15147 9640 10462   CC bb 14801 15147 10116 10462
+  DD aa 18334 19179 8069 8914   DD aa 18923 19179 8658 8914
+  DD aa 18955 19179 8690 8914   DD bb 18220 19179 6195 7154
+  DD bb 18385 19179 6360 7154   DD bb 18463 19179 6438 7154
+  DD bb 18941 19179 6916 7154   EE aa 16256 17033 5313 6090
+  EE aa 16920 17033 5977 6090   EE bb 16265 17033 5803 6571
+  EE bb 16404 17033 5942 6571   EE bb 16781 17033 6319 6571
+  FF aa 14691 15361 6739 7409   FF aa 14694 15361 6742 7409
+  FF aa 14743 15361 6791 7409   FF aa 15153 15361 7201 7409
+  FF bb 14423 15361 7269 8207   FF bb 14491 15361 7337 8207
+  FF bb 14635 15361 7481 8207   FF bb 14787 15361 7633 8207
+  FF bb 15066 15361 7912 8207   FF bb 15259 15361 8105 8207
+  GG aa 16073 16707 8280 8914   GG aa 16227 16707 8434 8914
+  GG aa 16372 16707 8579 8914   GG aa 16559 16707 8766 8914
+  GG bb 15769 16707 9198 10136   GG bb 15778 16707 9207 10136
+  GG bb 15863 16707 9292 10136   GG bb 16547 16707 9976 10136
+  HH aa 17139 18118 9243 10222   HH aa 17328 18118 9432 10222
+  HH aa 17638 18118 9742 10222   HH bb 17155 18118 8948 9911
+  HH bb 17388 18118 9181 9911   HH bb 17435 18118 9228 9911
+  HH bb 17763 18118 9556 9911   HH bb 17788 18118 9581 9911
+  HH bb 17985 18118 9778 9911   II aa 18567 19219 8712 9364
+  II aa 18821 19219 8966 9364   II bb 18414 19219 8278 9083
+  II bb 18548 19219 8412 9083   II bb 18776 19219 8640 9083
+  II bb 18798 19219 8662 9083   II bb 18969 19219 8833 9083
+  JJ aa 16452 17351 7949 8848   JJ aa 16583 17351 8080 8848
+  JJ aa 17117 17351 8614 8848   JJ aa 17238 17351 8735 8848
+  JJ bb 16512 17351 6601 7440   JJ bb 16997 17351 7086 7440
+  JJ bb 17015 17351 7104 7440   JJ bb 17094 17351 7183 7440}
+
+do_execsql_test 1.9.1 {
+  SELECT a, b, sum(c) OVER (ORDER BY a  GROUPS BETWEEN 2 PRECEDING         AND CURRENT ROW ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 4685   AA aa 4685   AA aa 4685   AA aa 4685   AA bb 4685   AA bb 4685
+  AA bb 4685   AA bb 4685   BB aa 12025   BB aa 12025   BB aa 12025
+  BB aa 12025   BB aa 12025   BB aa 12025   BB bb 12025   BB bb 12025
+  BB bb 12025   BB bb 12025   BB bb 12025   BB bb 12025   CC aa 15147
+  CC aa 15147   CC aa 15147   CC aa 15147   CC bb 15147   CC bb 15147
+  DD aa 14494   DD aa 14494   DD aa 14494   DD bb 14494   DD bb 14494
+  DD bb 14494   DD bb 14494   EE aa 9693   EE aa 9693   EE bb 9693
+  EE bb 9693   EE bb 9693   FF aa 12239   FF aa 12239   FF aa 12239
+  FF aa 12239   FF bb 12239   FF bb 12239   FF bb 12239   FF bb 12239
+  FF bb 12239   FF bb 12239   GG aa 12675   GG aa 12675   GG aa 12675
+  GG aa 12675   GG bb 12675   GG bb 12675   GG bb 12675   GG bb 12675
+  HH aa 15579   HH aa 15579   HH aa 15579   HH bb 15579   HH bb 15579
+  HH bb 15579   HH bb 15579   HH bb 15579   HH bb 15579   II aa 13551
+  II aa 13551   II bb 13551   II bb 13551   II bb 13551   II bb 13551
+  II bb 13551   JJ aa 12883   JJ aa 12883   JJ aa 12883   JJ aa 12883
+  JJ bb 12883   JJ bb 12883   JJ bb 12883   JJ bb 12883}
+
+do_execsql_test 1.9.2 {
+  SELECT a, b, sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN 2 PRECEDING         AND CURRENT ROW ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 2307   AA aa 2307   AA aa 2307   AA aa 2307   AA bb 4685   AA bb 4685
+  AA bb 4685   AA bb 4685   BB aa 7558   BB aa 7558   BB aa 7558   BB aa 7558
+  BB aa 7558   BB aa 7558   BB bb 9718   BB bb 9718   BB bb 9718   BB bb 9718
+  BB bb 9718   BB bb 9718   CC aa 9294   CC aa 9294   CC aa 9294   CC aa 9294
+  CC bb 7589   CC bb 7589   DD aa 4447   DD aa 4447   DD aa 4447   DD bb 5200
+  DD bb 5200   DD bb 5200   DD bb 5200   EE aa 4922   EE aa 4922   EE bb 5246
+  EE bb 5246   EE bb 5246   FF aa 4702   FF aa 4702   FF aa 4702   FF aa 4702
+  FF bb 7317   FF bb 7317   FF bb 7317   FF bb 7317   FF bb 7317   FF bb 7317
+  GG aa 7265   GG aa 7265   GG aa 7265   GG aa 7265   GG bb 7973   GG bb 7973
+  GG bb 7973   GG bb 7973   HH aa 6717   HH aa 6717   HH aa 6717   HH bb 8314
+  HH bb 8314   HH bb 8314   HH bb 8314   HH bb 8314   HH bb 8314   II aa 6493
+  II aa 6493   II bb 6834   II bb 6834   II bb 6834   II bb 6834   II bb 6834
+  JJ aa 5654   JJ aa 5654   JJ aa 5654   JJ aa 5654   JJ bb 6390   JJ bb 6390
+  JJ bb 6390   JJ bb 6390}
+
+do_execsql_test 1.9.3 {
+  SELECT a, b, rank() OVER (ORDER BY a  GROUPS BETWEEN 2 PRECEDING         AND CURRENT ROW ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 1   AA aa 1   AA aa 1   AA aa 1   AA bb 1   AA bb 1   AA bb 1
+  AA bb 1   BB aa 9   BB aa 9   BB aa 9   BB aa 9   BB aa 9   BB aa 9
+  BB bb 9   BB bb 9   BB bb 9   BB bb 9   BB bb 9   BB bb 9   CC aa 21
+  CC aa 21   CC aa 21   CC aa 21   CC bb 21   CC bb 21   DD aa 27   DD aa 27
+  DD aa 27   DD bb 27   DD bb 27   DD bb 27   DD bb 27   EE aa 34   EE aa 34
+  EE bb 34   EE bb 34   EE bb 34   FF aa 39   FF aa 39   FF aa 39   FF aa 39
+  FF bb 39   FF bb 39   FF bb 39   FF bb 39   FF bb 39   FF bb 39   GG aa 49
+  GG aa 49   GG aa 49   GG aa 49   GG bb 49   GG bb 49   GG bb 49   GG bb 49
+  HH aa 57   HH aa 57   HH aa 57   HH bb 57   HH bb 57   HH bb 57   HH bb 57
+  HH bb 57   HH bb 57   II aa 66   II aa 66   II bb 66   II bb 66   II bb 66
+  II bb 66   II bb 66   JJ aa 73   JJ aa 73   JJ aa 73   JJ aa 73   JJ bb 73
+  JJ bb 73   JJ bb 73   JJ bb 73}
+
+do_execsql_test 1.9.4 {
+  SELECT a, b, max(c) OVER (ORDER BY a,b  GROUPS BETWEEN 2 PRECEDING         AND CURRENT ROW ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 934   AA aa 934   AA aa 934   AA aa 934   AA bb 934   AA bb 934
+  AA bb 934   AA bb 934   BB aa 934   BB aa 934   BB aa 934   BB aa 934
+  BB aa 934   BB aa 934   BB bb 870   BB bb 870   BB bb 870   BB bb 870
+  BB bb 870   BB bb 870   CC aa 840   CC aa 840   CC aa 840   CC aa 840
+  CC bb 840   CC bb 840   DD aa 845   DD aa 845   DD aa 845   DD bb 959
+  DD bb 959   DD bb 959   DD bb 959   EE aa 959   EE aa 959   EE bb 959
+  EE bb 959   EE bb 959   FF aa 777   FF aa 777   FF aa 777   FF aa 777
+  FF bb 938   FF bb 938   FF bb 938   FF bb 938   FF bb 938   FF bb 938
+  GG aa 938   GG aa 938   GG aa 938   GG aa 938   GG bb 938   GG bb 938
+  GG bb 938   GG bb 938   HH aa 979   HH aa 979   HH aa 979   HH bb 979
+  HH bb 979   HH bb 979   HH bb 979   HH bb 979   HH bb 979   II aa 979
+  II aa 979   II bb 963   II bb 963   II bb 963   II bb 963   II bb 963
+  JJ aa 899   JJ aa 899   JJ aa 899   JJ aa 899   JJ bb 899   JJ bb 899
+  JJ bb 899   JJ bb 899}
+
+do_execsql_test 1.9.5 {
+  SELECT a, b, min(c) OVER (ORDER BY a,b  GROUPS BETWEEN 2 PRECEDING         AND CURRENT ROW ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 223   AA aa 223   AA aa 223   AA aa 223   AA bb 223   AA bb 223
+  AA bb 223   AA bb 223   BB aa 223   BB aa 223   BB aa 223   BB aa 223
+  BB aa 223   BB aa 223   BB bb 247   BB bb 247   BB bb 247   BB bb 247
+  BB bb 247   BB bb 247   CC aa 158   CC aa 158   CC aa 158   CC aa 158
+  CC bb 158   CC bb 158   DD aa 158   DD aa 158   DD aa 158   DD bb 224
+  DD bb 224   DD bb 224   DD bb 224   EE aa 113   EE aa 113   EE bb 113
+  EE bb 113   EE bb 113   FF aa 113   FF aa 113   FF aa 113   FF aa 113
+  FF bb 102   FF bb 102   FF bb 102   FF bb 102   FF bb 102   FF bb 102
+  GG aa 102   GG aa 102   GG aa 102   GG aa 102   GG bb 102   GG bb 102
+  GG bb 102   GG bb 102   HH aa 148   HH aa 148   HH aa 148   HH bb 133
+  HH bb 133   HH bb 133   HH bb 133   HH bb 133   HH bb 133   II aa 133
+  II aa 133   II bb 133   II bb 133   II bb 133   II bb 133   II bb 133
+  JJ aa 113   JJ aa 113   JJ aa 113   JJ aa 113   JJ bb 113   JJ bb 113
+  JJ bb 113   JJ bb 113}
+
+do_execsql_test 1.9.6 {
+  SELECT a, b, sum(c) OVER (ORDER BY a  GROUPS BETWEEN 2 PRECEDING         AND CURRENT ROW  EXCLUDE CURRENT ROW) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 3751   AA aa 3774   AA aa 4446   AA aa 4462   AA bb 3815   AA bb 4058
+  AA bb 4113   AA bb 4376   BB aa 11263   BB aa 11365   BB aa 11613
+  BB aa 11626   BB aa 11632   BB aa 11778   BB bb 11185   BB bb 11233
+  BB bb 11239   BB bb 11314   BB bb 11320   BB bb 11392   CC aa 14388
+  CC aa 14540   CC aa 14717   CC aa 14989   CC bb 14325   CC bb 14801
+  DD aa 13649   DD aa 14238   DD aa 14270   DD bb 13535   DD bb 13700
+  DD bb 13778   DD bb 14256   EE aa 8916   EE aa 9580   EE bb 8925
+  EE bb 9064   EE bb 9441   FF aa 11569   FF aa 11572   FF aa 11621
+  FF aa 12031   FF bb 11301   FF bb 11369   FF bb 11513   FF bb 11665
+  FF bb 11944   FF bb 12137   GG aa 12041   GG aa 12195   GG aa 12340
+  GG aa 12527   GG bb 11737   GG bb 11746   GG bb 11831   GG bb 12515
+  HH aa 14600   HH aa 14789   HH aa 15099   HH bb 14616   HH bb 14849
+  HH bb 14896   HH bb 15224   HH bb 15249   HH bb 15446   II aa 12899
+  II aa 13153   II bb 12746   II bb 12880   II bb 13108   II bb 13130
+  II bb 13301   JJ aa 11984   JJ aa 12115   JJ aa 12649   JJ aa 12770
+  JJ bb 12044   JJ bb 12529   JJ bb 12547   JJ bb 12626}
+
+do_execsql_test 1.9.7 {
+  SELECT a, b, sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN 2 PRECEDING         AND CURRENT ROW  EXCLUDE CURRENT ROW) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 1373   AA aa 1396   AA aa 2068   AA aa 2084   AA bb 3815   AA bb 4058
+  AA bb 4113   AA bb 4376   BB aa 6796   BB aa 6898   BB aa 7146   BB aa 7159
+  BB aa 7165   BB aa 7311   BB bb 8878   BB bb 8926   BB bb 8932   BB bb 9007
+  BB bb 9013   BB bb 9085   CC aa 8535   CC aa 8687   CC aa 8864   CC aa 9136
+  CC bb 6767   CC bb 7243   DD aa 3602   DD aa 4191   DD aa 4223   DD bb 4241
+  DD bb 4406   DD bb 4484   DD bb 4962   EE aa 4145   EE aa 4809   EE bb 4478
+  EE bb 4617   EE bb 4994   FF aa 4032   FF aa 4035   FF aa 4084   FF aa 4494
+  FF bb 6379   FF bb 6447   FF bb 6591   FF bb 6743   FF bb 7022   FF bb 7215
+  GG aa 6631   GG aa 6785   GG aa 6930   GG aa 7117   GG bb 7035   GG bb 7044
+  GG bb 7129   GG bb 7813   HH aa 5738   HH aa 5927   HH aa 6237   HH bb 7351
+  HH bb 7584   HH bb 7631   HH bb 7959   HH bb 7984   HH bb 8181   II aa 5841
+  II aa 6095   II bb 6029   II bb 6163   II bb 6391   II bb 6413   II bb 6584
+  JJ aa 4755   JJ aa 4886   JJ aa 5420   JJ aa 5541   JJ bb 5551   JJ bb 6036
+  JJ bb 6054   JJ bb 6133}
+
+do_execsql_test 1.9.8 {
+  SELECT a, b, 
+      sum(c) OVER (ORDER BY a  GROUPS BETWEEN 2 PRECEDING         AND CURRENT ROW  EXCLUDE CURRENT ROW),
+      sum(c) OVER (ORDER BY a  GROUPS BETWEEN 2 PRECEDING         AND CURRENT ROW ),
+      sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN 2 PRECEDING         AND CURRENT ROW  EXCLUDE CURRENT ROW),
+      sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN 2 PRECEDING         AND CURRENT ROW )
+    FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 3751 4685 1373 2307   AA aa 3774 4685 1396 2307
+  AA aa 4446 4685 2068 2307   AA aa 4462 4685 2084 2307
+  AA bb 3815 4685 3815 4685   AA bb 4058 4685 4058 4685
+  AA bb 4113 4685 4113 4685   AA bb 4376 4685 4376 4685
+  BB aa 11263 12025 6796 7558   BB aa 11365 12025 6898 7558
+  BB aa 11613 12025 7146 7558   BB aa 11626 12025 7159 7558
+  BB aa 11632 12025 7165 7558   BB aa 11778 12025 7311 7558
+  BB bb 11185 12025 8878 9718   BB bb 11233 12025 8926 9718
+  BB bb 11239 12025 8932 9718   BB bb 11314 12025 9007 9718
+  BB bb 11320 12025 9013 9718   BB bb 11392 12025 9085 9718
+  CC aa 14388 15147 8535 9294   CC aa 14540 15147 8687 9294
+  CC aa 14717 15147 8864 9294   CC aa 14989 15147 9136 9294
+  CC bb 14325 15147 6767 7589   CC bb 14801 15147 7243 7589
+  DD aa 13649 14494 3602 4447   DD aa 14238 14494 4191 4447
+  DD aa 14270 14494 4223 4447   DD bb 13535 14494 4241 5200
+  DD bb 13700 14494 4406 5200   DD bb 13778 14494 4484 5200
+  DD bb 14256 14494 4962 5200   EE aa 8916 9693 4145 4922
+  EE aa 9580 9693 4809 4922   EE bb 8925 9693 4478 5246
+  EE bb 9064 9693 4617 5246   EE bb 9441 9693 4994 5246
+  FF aa 11569 12239 4032 4702   FF aa 11572 12239 4035 4702
+  FF aa 11621 12239 4084 4702   FF aa 12031 12239 4494 4702
+  FF bb 11301 12239 6379 7317   FF bb 11369 12239 6447 7317
+  FF bb 11513 12239 6591 7317   FF bb 11665 12239 6743 7317
+  FF bb 11944 12239 7022 7317   FF bb 12137 12239 7215 7317
+  GG aa 12041 12675 6631 7265   GG aa 12195 12675 6785 7265
+  GG aa 12340 12675 6930 7265   GG aa 12527 12675 7117 7265
+  GG bb 11737 12675 7035 7973   GG bb 11746 12675 7044 7973
+  GG bb 11831 12675 7129 7973   GG bb 12515 12675 7813 7973
+  HH aa 14600 15579 5738 6717   HH aa 14789 15579 5927 6717
+  HH aa 15099 15579 6237 6717   HH bb 14616 15579 7351 8314
+  HH bb 14849 15579 7584 8314   HH bb 14896 15579 7631 8314
+  HH bb 15224 15579 7959 8314   HH bb 15249 15579 7984 8314
+  HH bb 15446 15579 8181 8314   II aa 12899 13551 5841 6493
+  II aa 13153 13551 6095 6493   II bb 12746 13551 6029 6834
+  II bb 12880 13551 6163 6834   II bb 13108 13551 6391 6834
+  II bb 13130 13551 6413 6834   II bb 13301 13551 6584 6834
+  JJ aa 11984 12883 4755 5654   JJ aa 12115 12883 4886 5654
+  JJ aa 12649 12883 5420 5654   JJ aa 12770 12883 5541 5654
+  JJ bb 12044 12883 5551 6390   JJ bb 12529 12883 6036 6390
+  JJ bb 12547 12883 6054 6390   JJ bb 12626 12883 6133 6390}
+
+do_execsql_test 1.10.1 {
+  SELECT a, b, sum(c) OVER (ORDER BY a  GROUPS BETWEEN 3 PRECEDING         AND 0 FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 4685   AA aa 4685   AA aa 4685   AA aa 4685   AA bb 4685   AA bb 4685
+  AA bb 4685   AA bb 4685   BB aa 12025   BB aa 12025   BB aa 12025
+  BB aa 12025   BB aa 12025   BB aa 12025   BB bb 12025   BB bb 12025
+  BB bb 12025   BB bb 12025   BB bb 12025   BB bb 12025   CC aa 15147
+  CC aa 15147   CC aa 15147   CC aa 15147   CC bb 15147   CC bb 15147
+  DD aa 19179   DD aa 19179   DD aa 19179   DD bb 19179   DD bb 19179
+  DD bb 19179   DD bb 19179   EE aa 17033   EE aa 17033   EE bb 17033
+  EE bb 17033   EE bb 17033   FF aa 15361   FF aa 15361   FF aa 15361
+  FF aa 15361   FF bb 15361   FF bb 15361   FF bb 15361   FF bb 15361
+  FF bb 15361   FF bb 15361   GG aa 16707   GG aa 16707   GG aa 16707
+  GG aa 16707   GG bb 16707   GG bb 16707   GG bb 16707   GG bb 16707
+  HH aa 18118   HH aa 18118   HH aa 18118   HH bb 18118   HH bb 18118
+  HH bb 18118   HH bb 18118   HH bb 18118   HH bb 18118   II aa 19219
+  II aa 19219   II bb 19219   II bb 19219   II bb 19219   II bb 19219
+  II bb 19219   JJ aa 17351   JJ aa 17351   JJ aa 17351   JJ aa 17351
+  JJ bb 17351   JJ bb 17351   JJ bb 17351   JJ bb 17351}
+
+do_execsql_test 1.10.2 {
+  SELECT a, b, sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN 3 PRECEDING         AND 0 FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 2307   AA aa 2307   AA aa 2307   AA aa 2307   AA bb 4685   AA bb 4685
+  AA bb 4685   AA bb 4685   BB aa 7558   BB aa 7558   BB aa 7558   BB aa 7558
+  BB aa 7558   BB aa 7558   BB bb 12025   BB bb 12025   BB bb 12025
+  BB bb 12025   BB bb 12025   BB bb 12025   CC aa 11672   CC aa 11672
+  CC aa 11672   CC aa 11672   CC bb 10462   CC bb 10462   DD aa 8914
+  DD aa 8914   DD aa 8914   DD bb 7154   DD bb 7154   DD bb 7154   DD bb 7154
+  EE aa 6090   EE aa 6090   EE bb 6571   EE bb 6571   EE bb 6571   FF aa 7409
+  FF aa 7409   FF aa 7409   FF aa 7409   FF bb 8207   FF bb 8207   FF bb 8207
+  FF bb 8207   FF bb 8207   FF bb 8207   GG aa 8914   GG aa 8914   GG aa 8914
+  GG aa 8914   GG bb 10136   GG bb 10136   GG bb 10136   GG bb 10136
+  HH aa 10222   HH aa 10222   HH aa 10222   HH bb 9911   HH bb 9911
+  HH bb 9911   HH bb 9911   HH bb 9911   HH bb 9911   II aa 9364   II aa 9364
+  II bb 9083   II bb 9083   II bb 9083   II bb 9083   II bb 9083   JJ aa 8848
+  JJ aa 8848   JJ aa 8848   JJ aa 8848   JJ bb 7440   JJ bb 7440   JJ bb 7440
+  JJ bb 7440}
+
+do_execsql_test 1.10.3 {
+  SELECT a, b, rank() OVER (ORDER BY a  GROUPS BETWEEN 3 PRECEDING         AND 0 FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 1   AA aa 1   AA aa 1   AA aa 1   AA bb 1   AA bb 1   AA bb 1
+  AA bb 1   BB aa 9   BB aa 9   BB aa 9   BB aa 9   BB aa 9   BB aa 9
+  BB bb 9   BB bb 9   BB bb 9   BB bb 9   BB bb 9   BB bb 9   CC aa 21
+  CC aa 21   CC aa 21   CC aa 21   CC bb 21   CC bb 21   DD aa 27   DD aa 27
+  DD aa 27   DD bb 27   DD bb 27   DD bb 27   DD bb 27   EE aa 34   EE aa 34
+  EE bb 34   EE bb 34   EE bb 34   FF aa 39   FF aa 39   FF aa 39   FF aa 39
+  FF bb 39   FF bb 39   FF bb 39   FF bb 39   FF bb 39   FF bb 39   GG aa 49
+  GG aa 49   GG aa 49   GG aa 49   GG bb 49   GG bb 49   GG bb 49   GG bb 49
+  HH aa 57   HH aa 57   HH aa 57   HH bb 57   HH bb 57   HH bb 57   HH bb 57
+  HH bb 57   HH bb 57   II aa 66   II aa 66   II bb 66   II bb 66   II bb 66
+  II bb 66   II bb 66   JJ aa 73   JJ aa 73   JJ aa 73   JJ aa 73   JJ bb 73
+  JJ bb 73   JJ bb 73   JJ bb 73}
+
+do_execsql_test 1.10.4 {
+  SELECT a, b, max(c) OVER (ORDER BY a,b  GROUPS BETWEEN 3 PRECEDING         AND 0 FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 934   AA aa 934   AA aa 934   AA aa 934   AA bb 934   AA bb 934
+  AA bb 934   AA bb 934   BB aa 934   BB aa 934   BB aa 934   BB aa 934
+  BB aa 934   BB aa 934   BB bb 934   BB bb 934   BB bb 934   BB bb 934
+  BB bb 934   BB bb 934   CC aa 870   CC aa 870   CC aa 870   CC aa 870
+  CC bb 840   CC bb 840   DD aa 845   DD aa 845   DD aa 845   DD bb 959
+  DD bb 959   DD bb 959   DD bb 959   EE aa 959   EE aa 959   EE bb 959
+  EE bb 959   EE bb 959   FF aa 959   FF aa 959   FF aa 959   FF aa 959
+  FF bb 938   FF bb 938   FF bb 938   FF bb 938   FF bb 938   FF bb 938
+  GG aa 938   GG aa 938   GG aa 938   GG aa 938   GG bb 938   GG bb 938
+  GG bb 938   GG bb 938   HH aa 979   HH aa 979   HH aa 979   HH bb 979
+  HH bb 979   HH bb 979   HH bb 979   HH bb 979   HH bb 979   II aa 979
+  II aa 979   II bb 979   II bb 979   II bb 979   II bb 979   II bb 979
+  JJ aa 963   JJ aa 963   JJ aa 963   JJ aa 963   JJ bb 899   JJ bb 899
+  JJ bb 899   JJ bb 899}
+
+do_execsql_test 1.10.5 {
+  SELECT a, b, min(c) OVER (ORDER BY a,b  GROUPS BETWEEN 3 PRECEDING         AND 0 FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 223   AA aa 223   AA aa 223   AA aa 223   AA bb 223   AA bb 223
+  AA bb 223   AA bb 223   BB aa 223   BB aa 223   BB aa 223   BB aa 223
+  BB aa 223   BB aa 223   BB bb 223   BB bb 223   BB bb 223   BB bb 223
+  BB bb 223   BB bb 223   CC aa 158   CC aa 158   CC aa 158   CC aa 158
+  CC bb 158   CC bb 158   DD aa 158   DD aa 158   DD aa 158   DD bb 158
+  DD bb 158   DD bb 158   DD bb 158   EE aa 113   EE aa 113   EE bb 113
+  EE bb 113   EE bb 113   FF aa 113   FF aa 113   FF aa 113   FF aa 113
+  FF bb 102   FF bb 102   FF bb 102   FF bb 102   FF bb 102   FF bb 102
+  GG aa 102   GG aa 102   GG aa 102   GG aa 102   GG bb 102   GG bb 102
+  GG bb 102   GG bb 102   HH aa 102   HH aa 102   HH aa 102   HH bb 133
+  HH bb 133   HH bb 133   HH bb 133   HH bb 133   HH bb 133   II aa 133
+  II aa 133   II bb 133   II bb 133   II bb 133   II bb 133   II bb 133
+  JJ aa 113   JJ aa 113   JJ aa 113   JJ aa 113   JJ bb 113   JJ bb 113
+  JJ bb 113   JJ bb 113}
+
+do_execsql_test 1.10.6 {
+  SELECT a, b, sum(c) OVER (ORDER BY a  GROUPS BETWEEN 3 PRECEDING         AND 0 FOLLOWING  EXCLUDE CURRENT ROW) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 3751   AA aa 3774   AA aa 4446   AA aa 4462   AA bb 3815   AA bb 4058
+  AA bb 4113   AA bb 4376   BB aa 11263   BB aa 11365   BB aa 11613
+  BB aa 11626   BB aa 11632   BB aa 11778   BB bb 11185   BB bb 11233
+  BB bb 11239   BB bb 11314   BB bb 11320   BB bb 11392   CC aa 14388
+  CC aa 14540   CC aa 14717   CC aa 14989   CC bb 14325   CC bb 14801
+  DD aa 18334   DD aa 18923   DD aa 18955   DD bb 18220   DD bb 18385
+  DD bb 18463   DD bb 18941   EE aa 16256   EE aa 16920   EE bb 16265
+  EE bb 16404   EE bb 16781   FF aa 14691   FF aa 14694   FF aa 14743
+  FF aa 15153   FF bb 14423   FF bb 14491   FF bb 14635   FF bb 14787
+  FF bb 15066   FF bb 15259   GG aa 16073   GG aa 16227   GG aa 16372
+  GG aa 16559   GG bb 15769   GG bb 15778   GG bb 15863   GG bb 16547
+  HH aa 17139   HH aa 17328   HH aa 17638   HH bb 17155   HH bb 17388
+  HH bb 17435   HH bb 17763   HH bb 17788   HH bb 17985   II aa 18567
+  II aa 18821   II bb 18414   II bb 18548   II bb 18776   II bb 18798
+  II bb 18969   JJ aa 16452   JJ aa 16583   JJ aa 17117   JJ aa 17238
+  JJ bb 16512   JJ bb 16997   JJ bb 17015   JJ bb 17094}
+
+do_execsql_test 1.10.7 {
+  SELECT a, b, sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN 3 PRECEDING         AND 0 FOLLOWING  EXCLUDE CURRENT ROW) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 1373   AA aa 1396   AA aa 2068   AA aa 2084   AA bb 3815   AA bb 4058
+  AA bb 4113   AA bb 4376   BB aa 6796   BB aa 6898   BB aa 7146   BB aa 7159
+  BB aa 7165   BB aa 7311   BB bb 11185   BB bb 11233   BB bb 11239
+  BB bb 11314   BB bb 11320   BB bb 11392   CC aa 10913   CC aa 11065
+  CC aa 11242   CC aa 11514   CC bb 9640   CC bb 10116   DD aa 8069
+  DD aa 8658   DD aa 8690   DD bb 6195   DD bb 6360   DD bb 6438   DD bb 6916
+  EE aa 5313   EE aa 5977   EE bb 5803   EE bb 5942   EE bb 6319   FF aa 6739
+  FF aa 6742   FF aa 6791   FF aa 7201   FF bb 7269   FF bb 7337   FF bb 7481
+  FF bb 7633   FF bb 7912   FF bb 8105   GG aa 8280   GG aa 8434   GG aa 8579
+  GG aa 8766   GG bb 9198   GG bb 9207   GG bb 9292   GG bb 9976   HH aa 9243
+  HH aa 9432   HH aa 9742   HH bb 8948   HH bb 9181   HH bb 9228   HH bb 9556
+  HH bb 9581   HH bb 9778   II aa 8712   II aa 8966   II bb 8278   II bb 8412
+  II bb 8640   II bb 8662   II bb 8833   JJ aa 7949   JJ aa 8080   JJ aa 8614
+  JJ aa 8735   JJ bb 6601   JJ bb 7086   JJ bb 7104   JJ bb 7183}
+
+do_execsql_test 1.10.8 {
+  SELECT a, b, 
+      sum(c) OVER (ORDER BY a  GROUPS BETWEEN 3 PRECEDING         AND 0 FOLLOWING  EXCLUDE CURRENT ROW),
+      sum(c) OVER (ORDER BY a  GROUPS BETWEEN 3 PRECEDING         AND 0 FOLLOWING ),
+      sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN 3 PRECEDING         AND 0 FOLLOWING  EXCLUDE CURRENT ROW),
+      sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN 3 PRECEDING         AND 0 FOLLOWING )
+    FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 3751 4685 1373 2307   AA aa 3774 4685 1396 2307
+  AA aa 4446 4685 2068 2307   AA aa 4462 4685 2084 2307
+  AA bb 3815 4685 3815 4685   AA bb 4058 4685 4058 4685
+  AA bb 4113 4685 4113 4685   AA bb 4376 4685 4376 4685
+  BB aa 11263 12025 6796 7558   BB aa 11365 12025 6898 7558
+  BB aa 11613 12025 7146 7558   BB aa 11626 12025 7159 7558
+  BB aa 11632 12025 7165 7558   BB aa 11778 12025 7311 7558
+  BB bb 11185 12025 11185 12025   BB bb 11233 12025 11233 12025
+  BB bb 11239 12025 11239 12025   BB bb 11314 12025 11314 12025
+  BB bb 11320 12025 11320 12025   BB bb 11392 12025 11392 12025
+  CC aa 14388 15147 10913 11672   CC aa 14540 15147 11065 11672
+  CC aa 14717 15147 11242 11672   CC aa 14989 15147 11514 11672
+  CC bb 14325 15147 9640 10462   CC bb 14801 15147 10116 10462
+  DD aa 18334 19179 8069 8914   DD aa 18923 19179 8658 8914
+  DD aa 18955 19179 8690 8914   DD bb 18220 19179 6195 7154
+  DD bb 18385 19179 6360 7154   DD bb 18463 19179 6438 7154
+  DD bb 18941 19179 6916 7154   EE aa 16256 17033 5313 6090
+  EE aa 16920 17033 5977 6090   EE bb 16265 17033 5803 6571
+  EE bb 16404 17033 5942 6571   EE bb 16781 17033 6319 6571
+  FF aa 14691 15361 6739 7409   FF aa 14694 15361 6742 7409
+  FF aa 14743 15361 6791 7409   FF aa 15153 15361 7201 7409
+  FF bb 14423 15361 7269 8207   FF bb 14491 15361 7337 8207
+  FF bb 14635 15361 7481 8207   FF bb 14787 15361 7633 8207
+  FF bb 15066 15361 7912 8207   FF bb 15259 15361 8105 8207
+  GG aa 16073 16707 8280 8914   GG aa 16227 16707 8434 8914
+  GG aa 16372 16707 8579 8914   GG aa 16559 16707 8766 8914
+  GG bb 15769 16707 9198 10136   GG bb 15778 16707 9207 10136
+  GG bb 15863 16707 9292 10136   GG bb 16547 16707 9976 10136
+  HH aa 17139 18118 9243 10222   HH aa 17328 18118 9432 10222
+  HH aa 17638 18118 9742 10222   HH bb 17155 18118 8948 9911
+  HH bb 17388 18118 9181 9911   HH bb 17435 18118 9228 9911
+  HH bb 17763 18118 9556 9911   HH bb 17788 18118 9581 9911
+  HH bb 17985 18118 9778 9911   II aa 18567 19219 8712 9364
+  II aa 18821 19219 8966 9364   II bb 18414 19219 8278 9083
+  II bb 18548 19219 8412 9083   II bb 18776 19219 8640 9083
+  II bb 18798 19219 8662 9083   II bb 18969 19219 8833 9083
+  JJ aa 16452 17351 7949 8848   JJ aa 16583 17351 8080 8848
+  JJ aa 17117 17351 8614 8848   JJ aa 17238 17351 8735 8848
+  JJ bb 16512 17351 6601 7440   JJ bb 16997 17351 7086 7440
+  JJ bb 17015 17351 7104 7440   JJ bb 17094 17351 7183 7440}
+
+do_execsql_test 1.11.1 {
+  SELECT a, b, sum(c) OVER (ORDER BY a  GROUPS BETWEEN 2 PRECEDING         AND UNBOUNDED FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 44737   AA aa 44737   AA aa 44737   AA aa 44737   AA bb 44737
+  AA bb 44737   AA bb 44737   AA bb 44737   BB aa 44737   BB aa 44737
+  BB aa 44737   BB aa 44737   BB aa 44737   BB aa 44737   BB bb 44737
+  BB bb 44737   BB bb 44737   BB bb 44737   BB bb 44737   BB bb 44737
+  CC aa 44737   CC aa 44737   CC aa 44737   CC aa 44737   CC bb 44737
+  CC bb 44737   DD aa 40052   DD aa 40052   DD aa 40052   DD bb 40052
+  DD bb 40052   DD bb 40052   DD bb 40052   EE aa 32712   EE aa 32712
+  EE bb 32712   EE bb 32712   EE bb 32712   FF aa 29590   FF aa 29590
+  FF aa 29590   FF aa 29590   FF bb 29590   FF bb 29590   FF bb 29590
+  FF bb 29590   FF bb 29590   FF bb 29590   GG aa 25558   GG aa 25558
+  GG aa 25558   GG aa 25558   GG bb 25558   GG bb 25558   GG bb 25558
+  GG bb 25558   HH aa 23019   HH aa 23019   HH aa 23019   HH bb 23019
+  HH bb 23019   HH bb 23019   HH bb 23019   HH bb 23019   HH bb 23019
+  II aa 17351   II aa 17351   II bb 17351   II bb 17351   II bb 17351
+  II bb 17351   II bb 17351   JJ aa 12883   JJ aa 12883   JJ aa 12883
+  JJ aa 12883   JJ bb 12883   JJ bb 12883   JJ bb 12883   JJ bb 12883}
+
+do_execsql_test 1.11.2 {
+  SELECT a, b, sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN 2 PRECEDING         AND UNBOUNDED FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 44737   AA aa 44737   AA aa 44737   AA aa 44737   AA bb 44737
+  AA bb 44737   AA bb 44737   AA bb 44737   BB aa 44737   BB aa 44737
+  BB aa 44737   BB aa 44737   BB aa 44737   BB aa 44737   BB bb 42430
+  BB bb 42430   BB bb 42430   BB bb 42430   BB bb 42430   BB bb 42430
+  CC aa 40052   CC aa 40052   CC aa 40052   CC aa 40052   CC bb 37179
+  CC bb 37179   DD aa 32712   DD aa 32712   DD aa 32712   DD bb 30758
+  DD bb 30758   DD bb 30758   DD bb 30758   EE aa 29590   EE aa 29590
+  EE bb 28265   EE bb 28265   EE bb 28265   FF aa 25558   FF aa 25558
+  FF aa 25558   FF aa 25558   FF bb 24668   FF bb 24668   FF bb 24668
+  FF bb 24668   FF bb 24668   FF bb 24668   GG aa 23019   GG aa 23019
+  GG aa 23019   GG aa 23019   GG bb 20856   GG bb 20856   GG bb 20856
+  GG bb 20856   HH aa 17351   HH aa 17351   HH aa 17351   HH bb 15754
+  HH bb 15754   HH bb 15754   HH bb 15754   HH bb 15754   HH bb 15754
+  II aa 12883   II aa 12883   II bb 10634   II bb 10634   II bb 10634
+  II bb 10634   II bb 10634   JJ aa 7440   JJ aa 7440   JJ aa 7440
+  JJ aa 7440   JJ bb 6390   JJ bb 6390   JJ bb 6390   JJ bb 6390}
+
+do_execsql_test 1.11.3 {
+  SELECT a, b, rank() OVER (ORDER BY a  GROUPS BETWEEN 2 PRECEDING         AND UNBOUNDED FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 1   AA aa 1   AA aa 1   AA aa 1   AA bb 1   AA bb 1   AA bb 1
+  AA bb 1   BB aa 9   BB aa 9   BB aa 9   BB aa 9   BB aa 9   BB aa 9
+  BB bb 9   BB bb 9   BB bb 9   BB bb 9   BB bb 9   BB bb 9   CC aa 21
+  CC aa 21   CC aa 21   CC aa 21   CC bb 21   CC bb 21   DD aa 27   DD aa 27
+  DD aa 27   DD bb 27   DD bb 27   DD bb 27   DD bb 27   EE aa 34   EE aa 34
+  EE bb 34   EE bb 34   EE bb 34   FF aa 39   FF aa 39   FF aa 39   FF aa 39
+  FF bb 39   FF bb 39   FF bb 39   FF bb 39   FF bb 39   FF bb 39   GG aa 49
+  GG aa 49   GG aa 49   GG aa 49   GG bb 49   GG bb 49   GG bb 49   GG bb 49
+  HH aa 57   HH aa 57   HH aa 57   HH bb 57   HH bb 57   HH bb 57   HH bb 57
+  HH bb 57   HH bb 57   II aa 66   II aa 66   II bb 66   II bb 66   II bb 66
+  II bb 66   II bb 66   JJ aa 73   JJ aa 73   JJ aa 73   JJ aa 73   JJ bb 73
+  JJ bb 73   JJ bb 73   JJ bb 73}
+
+do_execsql_test 1.11.4 {
+  SELECT a, b, max(c) OVER (ORDER BY a,b  GROUPS BETWEEN 2 PRECEDING         AND UNBOUNDED FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 979   AA aa 979   AA aa 979   AA aa 979   AA bb 979   AA bb 979
+  AA bb 979   AA bb 979   BB aa 979   BB aa 979   BB aa 979   BB aa 979
+  BB aa 979   BB aa 979   BB bb 979   BB bb 979   BB bb 979   BB bb 979
+  BB bb 979   BB bb 979   CC aa 979   CC aa 979   CC aa 979   CC aa 979
+  CC bb 979   CC bb 979   DD aa 979   DD aa 979   DD aa 979   DD bb 979
+  DD bb 979   DD bb 979   DD bb 979   EE aa 979   EE aa 979   EE bb 979
+  EE bb 979   EE bb 979   FF aa 979   FF aa 979   FF aa 979   FF aa 979
+  FF bb 979   FF bb 979   FF bb 979   FF bb 979   FF bb 979   FF bb 979
+  GG aa 979   GG aa 979   GG aa 979   GG aa 979   GG bb 979   GG bb 979
+  GG bb 979   GG bb 979   HH aa 979   HH aa 979   HH aa 979   HH bb 979
+  HH bb 979   HH bb 979   HH bb 979   HH bb 979   HH bb 979   II aa 979
+  II aa 979   II bb 963   II bb 963   II bb 963   II bb 963   II bb 963
+  JJ aa 899   JJ aa 899   JJ aa 899   JJ aa 899   JJ bb 899   JJ bb 899
+  JJ bb 899   JJ bb 899}
+
+do_execsql_test 1.11.5 {
+  SELECT a, b, min(c) OVER (ORDER BY a,b  GROUPS BETWEEN 2 PRECEDING         AND UNBOUNDED FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 102   AA aa 102   AA aa 102   AA aa 102   AA bb 102   AA bb 102
+  AA bb 102   AA bb 102   BB aa 102   BB aa 102   BB aa 102   BB aa 102
+  BB aa 102   BB aa 102   BB bb 102   BB bb 102   BB bb 102   BB bb 102
+  BB bb 102   BB bb 102   CC aa 102   CC aa 102   CC aa 102   CC aa 102
+  CC bb 102   CC bb 102   DD aa 102   DD aa 102   DD aa 102   DD bb 102
+  DD bb 102   DD bb 102   DD bb 102   EE aa 102   EE aa 102   EE bb 102
+  EE bb 102   EE bb 102   FF aa 102   FF aa 102   FF aa 102   FF aa 102
+  FF bb 102   FF bb 102   FF bb 102   FF bb 102   FF bb 102   FF bb 102
+  GG aa 102   GG aa 102   GG aa 102   GG aa 102   GG bb 102   GG bb 102
+  GG bb 102   GG bb 102   HH aa 113   HH aa 113   HH aa 113   HH bb 113
+  HH bb 113   HH bb 113   HH bb 113   HH bb 113   HH bb 113   II aa 113
+  II aa 113   II bb 113   II bb 113   II bb 113   II bb 113   II bb 113
+  JJ aa 113   JJ aa 113   JJ aa 113   JJ aa 113   JJ bb 113   JJ bb 113
+  JJ bb 113   JJ bb 113}
+
+do_execsql_test 1.11.6 {
+  SELECT a, b, sum(c) OVER (ORDER BY a  GROUPS BETWEEN 2 PRECEDING         AND UNBOUNDED FOLLOWING  EXCLUDE CURRENT ROW) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 43803   AA aa 43826   AA aa 44498   AA aa 44514   AA bb 43867
+  AA bb 44110   AA bb 44165   AA bb 44428   BB aa 43975   BB aa 44077
+  BB aa 44325   BB aa 44338   BB aa 44344   BB aa 44490   BB bb 43897
+  BB bb 43945   BB bb 43951   BB bb 44026   BB bb 44032   BB bb 44104
+  CC aa 43978   CC aa 44130   CC aa 44307   CC aa 44579   CC bb 43915
+  CC bb 44391   DD aa 39207   DD aa 39796   DD aa 39828   DD bb 39093
+  DD bb 39258   DD bb 39336   DD bb 39814   EE aa 31935   EE aa 32599
+  EE bb 31944   EE bb 32083   EE bb 32460   FF aa 28920   FF aa 28923
+  FF aa 28972   FF aa 29382   FF bb 28652   FF bb 28720   FF bb 28864
+  FF bb 29016   FF bb 29295   FF bb 29488   GG aa 24924   GG aa 25078
+  GG aa 25223   GG aa 25410   GG bb 24620   GG bb 24629   GG bb 24714
+  GG bb 25398   HH aa 22040   HH aa 22229   HH aa 22539   HH bb 22056
+  HH bb 22289   HH bb 22336   HH bb 22664   HH bb 22689   HH bb 22886
+  II aa 16699   II aa 16953   II bb 16546   II bb 16680   II bb 16908
+  II bb 16930   II bb 17101   JJ aa 11984   JJ aa 12115   JJ aa 12649
+  JJ aa 12770   JJ bb 12044   JJ bb 12529   JJ bb 12547   JJ bb 12626}
+
+do_execsql_test 1.11.7 {
+  SELECT a, b, sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN 2 PRECEDING         AND UNBOUNDED FOLLOWING  EXCLUDE CURRENT ROW) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 43803   AA aa 43826   AA aa 44498   AA aa 44514   AA bb 43867
+  AA bb 44110   AA bb 44165   AA bb 44428   BB aa 43975   BB aa 44077
+  BB aa 44325   BB aa 44338   BB aa 44344   BB aa 44490   BB bb 41590
+  BB bb 41638   BB bb 41644   BB bb 41719   BB bb 41725   BB bb 41797
+  CC aa 39293   CC aa 39445   CC aa 39622   CC aa 39894   CC bb 36357
+  CC bb 36833   DD aa 31867   DD aa 32456   DD aa 32488   DD bb 29799
+  DD bb 29964   DD bb 30042   DD bb 30520   EE aa 28813   EE aa 29477
+  EE bb 27497   EE bb 27636   EE bb 28013   FF aa 24888   FF aa 24891
+  FF aa 24940   FF aa 25350   FF bb 23730   FF bb 23798   FF bb 23942
+  FF bb 24094   FF bb 24373   FF bb 24566   GG aa 22385   GG aa 22539
+  GG aa 22684   GG aa 22871   GG bb 19918   GG bb 19927   GG bb 20012
+  GG bb 20696   HH aa 16372   HH aa 16561   HH aa 16871   HH bb 14791
+  HH bb 15024   HH bb 15071   HH bb 15399   HH bb 15424   HH bb 15621
+  II aa 12231   II aa 12485   II bb 9829   II bb 9963   II bb 10191
+  II bb 10213   II bb 10384   JJ aa 6541   JJ aa 6672   JJ aa 7206
+  JJ aa 7327   JJ bb 5551   JJ bb 6036   JJ bb 6054   JJ bb 6133}
+
+do_execsql_test 1.11.8 {
+  SELECT a, b, 
+      sum(c) OVER (ORDER BY a  GROUPS BETWEEN 2 PRECEDING         AND UNBOUNDED FOLLOWING  EXCLUDE CURRENT ROW),
+      sum(c) OVER (ORDER BY a  GROUPS BETWEEN 2 PRECEDING         AND UNBOUNDED FOLLOWING ),
+      sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN 2 PRECEDING         AND UNBOUNDED FOLLOWING  EXCLUDE CURRENT ROW),
+      sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN 2 PRECEDING         AND UNBOUNDED FOLLOWING )
+    FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 43803 44737 43803 44737   AA aa 43826 44737 43826 44737
+  AA aa 44498 44737 44498 44737   AA aa 44514 44737 44514 44737
+  AA bb 43867 44737 43867 44737   AA bb 44110 44737 44110 44737
+  AA bb 44165 44737 44165 44737   AA bb 44428 44737 44428 44737
+  BB aa 43975 44737 43975 44737   BB aa 44077 44737 44077 44737
+  BB aa 44325 44737 44325 44737   BB aa 44338 44737 44338 44737
+  BB aa 44344 44737 44344 44737   BB aa 44490 44737 44490 44737
+  BB bb 43897 44737 41590 42430   BB bb 43945 44737 41638 42430
+  BB bb 43951 44737 41644 42430   BB bb 44026 44737 41719 42430
+  BB bb 44032 44737 41725 42430   BB bb 44104 44737 41797 42430
+  CC aa 43978 44737 39293 40052   CC aa 44130 44737 39445 40052
+  CC aa 44307 44737 39622 40052   CC aa 44579 44737 39894 40052
+  CC bb 43915 44737 36357 37179   CC bb 44391 44737 36833 37179
+  DD aa 39207 40052 31867 32712   DD aa 39796 40052 32456 32712
+  DD aa 39828 40052 32488 32712   DD bb 39093 40052 29799 30758
+  DD bb 39258 40052 29964 30758   DD bb 39336 40052 30042 30758
+  DD bb 39814 40052 30520 30758   EE aa 31935 32712 28813 29590
+  EE aa 32599 32712 29477 29590   EE bb 31944 32712 27497 28265
+  EE bb 32083 32712 27636 28265   EE bb 32460 32712 28013 28265
+  FF aa 28920 29590 24888 25558   FF aa 28923 29590 24891 25558
+  FF aa 28972 29590 24940 25558   FF aa 29382 29590 25350 25558
+  FF bb 28652 29590 23730 24668   FF bb 28720 29590 23798 24668
+  FF bb 28864 29590 23942 24668   FF bb 29016 29590 24094 24668
+  FF bb 29295 29590 24373 24668   FF bb 29488 29590 24566 24668
+  GG aa 24924 25558 22385 23019   GG aa 25078 25558 22539 23019
+  GG aa 25223 25558 22684 23019   GG aa 25410 25558 22871 23019
+  GG bb 24620 25558 19918 20856   GG bb 24629 25558 19927 20856
+  GG bb 24714 25558 20012 20856   GG bb 25398 25558 20696 20856
+  HH aa 22040 23019 16372 17351   HH aa 22229 23019 16561 17351
+  HH aa 22539 23019 16871 17351   HH bb 22056 23019 14791 15754
+  HH bb 22289 23019 15024 15754   HH bb 22336 23019 15071 15754
+  HH bb 22664 23019 15399 15754   HH bb 22689 23019 15424 15754
+  HH bb 22886 23019 15621 15754   II aa 16699 17351 12231 12883
+  II aa 16953 17351 12485 12883   II bb 16546 17351 9829 10634
+  II bb 16680 17351 9963 10634   II bb 16908 17351 10191 10634
+  II bb 16930 17351 10213 10634   II bb 17101 17351 10384 10634
+  JJ aa 11984 12883 6541 7440   JJ aa 12115 12883 6672 7440
+  JJ aa 12649 12883 7206 7440   JJ aa 12770 12883 7327 7440
+  JJ bb 12044 12883 5551 6390   JJ bb 12529 12883 6036 6390
+  JJ bb 12547 12883 6054 6390   JJ bb 12626 12883 6133 6390}
+
+do_execsql_test 1.12.1 {
+  SELECT a, b, sum(c) OVER (ORDER BY a  GROUPS BETWEEN CURRENT ROW         AND 0 FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 4685   AA aa 4685   AA aa 4685   AA aa 4685   AA bb 4685   AA bb 4685
+  AA bb 4685   AA bb 4685   BB aa 7340   BB aa 7340   BB aa 7340   BB aa 7340
+  BB aa 7340   BB aa 7340   BB bb 7340   BB bb 7340   BB bb 7340   BB bb 7340
+  BB bb 7340   BB bb 7340   CC aa 3122   CC aa 3122   CC aa 3122   CC aa 3122
+  CC bb 3122   CC bb 3122   DD aa 4032   DD aa 4032   DD aa 4032   DD bb 4032
+  DD bb 4032   DD bb 4032   DD bb 4032   EE aa 2539   EE aa 2539   EE bb 2539
+  EE bb 2539   EE bb 2539   FF aa 5668   FF aa 5668   FF aa 5668   FF aa 5668
+  FF bb 5668   FF bb 5668   FF bb 5668   FF bb 5668   FF bb 5668   FF bb 5668
+  GG aa 4468   GG aa 4468   GG aa 4468   GG aa 4468   GG bb 4468   GG bb 4468
+  GG bb 4468   GG bb 4468   HH aa 5443   HH aa 5443   HH aa 5443   HH bb 5443
+  HH bb 5443   HH bb 5443   HH bb 5443   HH bb 5443   HH bb 5443   II aa 3640
+  II aa 3640   II bb 3640   II bb 3640   II bb 3640   II bb 3640   II bb 3640
+  JJ aa 3800   JJ aa 3800   JJ aa 3800   JJ aa 3800   JJ bb 3800   JJ bb 3800
+  JJ bb 3800   JJ bb 3800}
+
+do_execsql_test 1.12.2 {
+  SELECT a, b, sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN CURRENT ROW         AND 0 FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 2307   AA aa 2307   AA aa 2307   AA aa 2307   AA bb 2378   AA bb 2378
+  AA bb 2378   AA bb 2378   BB aa 2873   BB aa 2873   BB aa 2873   BB aa 2873
+  BB aa 2873   BB aa 2873   BB bb 4467   BB bb 4467   BB bb 4467   BB bb 4467
+  BB bb 4467   BB bb 4467   CC aa 1954   CC aa 1954   CC aa 1954   CC aa 1954
+  CC bb 1168   CC bb 1168   DD aa 1325   DD aa 1325   DD aa 1325   DD bb 2707
+  DD bb 2707   DD bb 2707   DD bb 2707   EE aa 890   EE aa 890   EE bb 1649
+  EE bb 1649   EE bb 1649   FF aa 2163   FF aa 2163   FF aa 2163   FF aa 2163
+  FF bb 3505   FF bb 3505   FF bb 3505   FF bb 3505   FF bb 3505   FF bb 3505
+  GG aa 1597   GG aa 1597   GG aa 1597   GG aa 1597   GG bb 2871   GG bb 2871
+  GG bb 2871   GG bb 2871   HH aa 2249   HH aa 2249   HH aa 2249   HH bb 3194
+  HH bb 3194   HH bb 3194   HH bb 3194   HH bb 3194   HH bb 3194   II aa 1050
+  II aa 1050   II bb 2590   II bb 2590   II bb 2590   II bb 2590   II bb 2590
+  JJ aa 2014   JJ aa 2014   JJ aa 2014   JJ aa 2014   JJ bb 1786   JJ bb 1786
+  JJ bb 1786   JJ bb 1786}
+
+do_execsql_test 1.12.3 {
+  SELECT a, b, rank() OVER (ORDER BY a  GROUPS BETWEEN CURRENT ROW         AND 0 FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 1   AA aa 1   AA aa 1   AA aa 1   AA bb 1   AA bb 1   AA bb 1
+  AA bb 1   BB aa 9   BB aa 9   BB aa 9   BB aa 9   BB aa 9   BB aa 9
+  BB bb 9   BB bb 9   BB bb 9   BB bb 9   BB bb 9   BB bb 9   CC aa 21
+  CC aa 21   CC aa 21   CC aa 21   CC bb 21   CC bb 21   DD aa 27   DD aa 27
+  DD aa 27   DD bb 27   DD bb 27   DD bb 27   DD bb 27   EE aa 34   EE aa 34
+  EE bb 34   EE bb 34   EE bb 34   FF aa 39   FF aa 39   FF aa 39   FF aa 39
+  FF bb 39   FF bb 39   FF bb 39   FF bb 39   FF bb 39   FF bb 39   GG aa 49
+  GG aa 49   GG aa 49   GG aa 49   GG bb 49   GG bb 49   GG bb 49   GG bb 49
+  HH aa 57   HH aa 57   HH aa 57   HH bb 57   HH bb 57   HH bb 57   HH bb 57
+  HH bb 57   HH bb 57   II aa 66   II aa 66   II bb 66   II bb 66   II bb 66
+  II bb 66   II bb 66   JJ aa 73   JJ aa 73   JJ aa 73   JJ aa 73   JJ bb 73
+  JJ bb 73   JJ bb 73   JJ bb 73}
+
+do_execsql_test 1.12.4 {
+  SELECT a, b, max(c) OVER (ORDER BY a,b  GROUPS BETWEEN CURRENT ROW         AND 0 FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 934   AA aa 934   AA aa 934   AA aa 934   AA bb 870   AA bb 870
+  AA bb 870   AA bb 870   BB aa 762   BB aa 762   BB aa 762   BB aa 762
+  BB aa 762   BB aa 762   BB bb 840   BB bb 840   BB bb 840   BB bb 840
+  BB bb 840   BB bb 840   CC aa 759   CC aa 759   CC aa 759   CC aa 759
+  CC bb 822   CC bb 822   DD aa 845   DD aa 845   DD aa 845   DD bb 959
+  DD bb 959   DD bb 959   DD bb 959   EE aa 777   EE aa 777   EE bb 768
+  EE bb 768   EE bb 768   FF aa 670   FF aa 670   FF aa 670   FF aa 670
+  FF bb 938   FF bb 938   FF bb 938   FF bb 938   FF bb 938   FF bb 938
+  GG aa 634   GG aa 634   GG aa 634   GG aa 634   GG bb 938   GG bb 938
+  GG bb 938   GG bb 938   HH aa 979   HH aa 979   HH aa 979   HH bb 963
+  HH bb 963   HH bb 963   HH bb 963   HH bb 963   HH bb 963   II aa 652
+  II aa 652   II bb 805   II bb 805   II bb 805   II bb 805   II bb 805
+  JJ aa 899   JJ aa 899   JJ aa 899   JJ aa 899   JJ bb 839   JJ bb 839
+  JJ bb 839   JJ bb 839}
+
+do_execsql_test 1.12.5 {
+  SELECT a, b, min(c) OVER (ORDER BY a,b  GROUPS BETWEEN CURRENT ROW         AND 0 FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 223   AA aa 223   AA aa 223   AA aa 223   AA bb 309   AA bb 309
+  AA bb 309   AA bb 309   BB aa 247   BB aa 247   BB aa 247   BB aa 247
+  BB aa 247   BB aa 247   BB bb 633   BB bb 633   BB bb 633   BB bb 633
+  BB bb 633   BB bb 633   CC aa 158   CC aa 158   CC aa 158   CC aa 158
+  CC bb 346   CC bb 346   DD aa 224   DD aa 224   DD aa 224   DD bb 238
+  DD bb 238   DD bb 238   DD bb 238   EE aa 113   EE aa 113   EE bb 252
+  EE bb 252   EE bb 252   FF aa 208   FF aa 208   FF aa 208   FF aa 208
+  FF bb 102   FF bb 102   FF bb 102   FF bb 102   FF bb 102   FF bb 102
+  GG aa 148   GG aa 148   GG aa 148   GG aa 148   GG bb 160   GG bb 160
+  GG bb 160   GG bb 160   HH aa 480   HH aa 480   HH aa 480   HH bb 133
+  HH bb 133   HH bb 133   HH bb 133   HH bb 133   HH bb 133   II aa 398
+  II aa 398   II bb 250   II bb 250   II bb 250   II bb 250   II bb 250
+  JJ aa 113   JJ aa 113   JJ aa 113   JJ aa 113   JJ bb 257   JJ bb 257
+  JJ bb 257   JJ bb 257}
+
+do_execsql_test 1.12.6 {
+  SELECT a, b, sum(c) OVER (ORDER BY a  GROUPS BETWEEN CURRENT ROW         AND 0 FOLLOWING  EXCLUDE CURRENT ROW) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 3751   AA aa 3774   AA aa 4446   AA aa 4462   AA bb 3815   AA bb 4058
+  AA bb 4113   AA bb 4376   BB aa 6578   BB aa 6680   BB aa 6928   BB aa 6941
+  BB aa 6947   BB aa 7093   BB bb 6500   BB bb 6548   BB bb 6554   BB bb 6629
+  BB bb 6635   BB bb 6707   CC aa 2363   CC aa 2515   CC aa 2692   CC aa 2964
+  CC bb 2300   CC bb 2776   DD aa 3187   DD aa 3776   DD aa 3808   DD bb 3073
+  DD bb 3238   DD bb 3316   DD bb 3794   EE aa 1762   EE aa 2426   EE bb 1771
+  EE bb 1910   EE bb 2287   FF aa 4998   FF aa 5001   FF aa 5050   FF aa 5460
+  FF bb 4730   FF bb 4798   FF bb 4942   FF bb 5094   FF bb 5373   FF bb 5566
+  GG aa 3834   GG aa 3988   GG aa 4133   GG aa 4320   GG bb 3530   GG bb 3539
+  GG bb 3624   GG bb 4308   HH aa 4464   HH aa 4653   HH aa 4963   HH bb 4480
+  HH bb 4713   HH bb 4760   HH bb 5088   HH bb 5113   HH bb 5310   II aa 2988
+  II aa 3242   II bb 2835   II bb 2969   II bb 3197   II bb 3219   II bb 3390
+  JJ aa 2901   JJ aa 3032   JJ aa 3566   JJ aa 3687   JJ bb 2961   JJ bb 3446
+  JJ bb 3464   JJ bb 3543}
+
+do_execsql_test 1.12.7 {
+  SELECT a, b, sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN CURRENT ROW         AND 0 FOLLOWING  EXCLUDE CURRENT ROW) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 1373   AA aa 1396   AA aa 2068   AA aa 2084   AA bb 1508   AA bb 1751
+  AA bb 1806   AA bb 2069   BB aa 2111   BB aa 2213   BB aa 2461   BB aa 2474
+  BB aa 2480   BB aa 2626   BB bb 3627   BB bb 3675   BB bb 3681   BB bb 3756
+  BB bb 3762   BB bb 3834   CC aa 1195   CC aa 1347   CC aa 1524   CC aa 1796
+  CC bb 346   CC bb 822   DD aa 480   DD aa 1069   DD aa 1101   DD bb 1748
+  DD bb 1913   DD bb 1991   DD bb 2469   EE aa 113   EE aa 777   EE bb 881
+  EE bb 1020   EE bb 1397   FF aa 1493   FF aa 1496   FF aa 1545   FF aa 1955
+  FF bb 2567   FF bb 2635   FF bb 2779   FF bb 2931   FF bb 3210   FF bb 3403
+  GG aa 963   GG aa 1117   GG aa 1262   GG aa 1449   GG bb 1933   GG bb 1942
+  GG bb 2027   GG bb 2711   HH aa 1270   HH aa 1459   HH aa 1769   HH bb 2231
+  HH bb 2464   HH bb 2511   HH bb 2839   HH bb 2864   HH bb 3061   II aa 398
+  II aa 652   II bb 1785   II bb 1919   II bb 2147   II bb 2169   II bb 2340
+  JJ aa 1115   JJ aa 1246   JJ aa 1780   JJ aa 1901   JJ bb 947   JJ bb 1432
+  JJ bb 1450   JJ bb 1529}
+
+do_execsql_test 1.12.8 {
+  SELECT a, b, 
+      sum(c) OVER (ORDER BY a  GROUPS BETWEEN CURRENT ROW         AND 0 FOLLOWING  EXCLUDE CURRENT ROW),
+      sum(c) OVER (ORDER BY a  GROUPS BETWEEN CURRENT ROW         AND 0 FOLLOWING ),
+      sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN CURRENT ROW         AND 0 FOLLOWING  EXCLUDE CURRENT ROW),
+      sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN CURRENT ROW         AND 0 FOLLOWING )
+    FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 3751 4685 1373 2307   AA aa 3774 4685 1396 2307
+  AA aa 4446 4685 2068 2307   AA aa 4462 4685 2084 2307
+  AA bb 3815 4685 1508 2378   AA bb 4058 4685 1751 2378
+  AA bb 4113 4685 1806 2378   AA bb 4376 4685 2069 2378
+  BB aa 6578 7340 2111 2873   BB aa 6680 7340 2213 2873
+  BB aa 6928 7340 2461 2873   BB aa 6941 7340 2474 2873
+  BB aa 6947 7340 2480 2873   BB aa 7093 7340 2626 2873
+  BB bb 6500 7340 3627 4467   BB bb 6548 7340 3675 4467
+  BB bb 6554 7340 3681 4467   BB bb 6629 7340 3756 4467
+  BB bb 6635 7340 3762 4467   BB bb 6707 7340 3834 4467
+  CC aa 2363 3122 1195 1954   CC aa 2515 3122 1347 1954
+  CC aa 2692 3122 1524 1954   CC aa 2964 3122 1796 1954
+  CC bb 2300 3122 346 1168   CC bb 2776 3122 822 1168
+  DD aa 3187 4032 480 1325   DD aa 3776 4032 1069 1325
+  DD aa 3808 4032 1101 1325   DD bb 3073 4032 1748 2707
+  DD bb 3238 4032 1913 2707   DD bb 3316 4032 1991 2707
+  DD bb 3794 4032 2469 2707   EE aa 1762 2539 113 890
+  EE aa 2426 2539 777 890   EE bb 1771 2539 881 1649
+  EE bb 1910 2539 1020 1649   EE bb 2287 2539 1397 1649
+  FF aa 4998 5668 1493 2163   FF aa 5001 5668 1496 2163
+  FF aa 5050 5668 1545 2163   FF aa 5460 5668 1955 2163
+  FF bb 4730 5668 2567 3505   FF bb 4798 5668 2635 3505
+  FF bb 4942 5668 2779 3505   FF bb 5094 5668 2931 3505
+  FF bb 5373 5668 3210 3505   FF bb 5566 5668 3403 3505
+  GG aa 3834 4468 963 1597   GG aa 3988 4468 1117 1597
+  GG aa 4133 4468 1262 1597   GG aa 4320 4468 1449 1597
+  GG bb 3530 4468 1933 2871   GG bb 3539 4468 1942 2871
+  GG bb 3624 4468 2027 2871   GG bb 4308 4468 2711 2871
+  HH aa 4464 5443 1270 2249   HH aa 4653 5443 1459 2249
+  HH aa 4963 5443 1769 2249   HH bb 4480 5443 2231 3194
+  HH bb 4713 5443 2464 3194   HH bb 4760 5443 2511 3194
+  HH bb 5088 5443 2839 3194   HH bb 5113 5443 2864 3194
+  HH bb 5310 5443 3061 3194   II aa 2988 3640 398 1050
+  II aa 3242 3640 652 1050   II bb 2835 3640 1785 2590
+  II bb 2969 3640 1919 2590   II bb 3197 3640 2147 2590
+  II bb 3219 3640 2169 2590   II bb 3390 3640 2340 2590
+  JJ aa 2901 3800 1115 2014   JJ aa 3032 3800 1246 2014
+  JJ aa 3566 3800 1780 2014   JJ aa 3687 3800 1901 2014
+  JJ bb 2961 3800 947 1786   JJ bb 3446 3800 1432 1786
+  JJ bb 3464 3800 1450 1786   JJ bb 3543 3800 1529 1786}
+
+do_execsql_test 1.13.1 {
+  SELECT a, b, sum(c) OVER (ORDER BY a  GROUPS BETWEEN CURRENT ROW         AND 1 FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 12025   AA aa 12025   AA aa 12025   AA aa 12025   AA bb 12025
+  AA bb 12025   AA bb 12025   AA bb 12025   BB aa 10462   BB aa 10462
+  BB aa 10462   BB aa 10462   BB aa 10462   BB aa 10462   BB bb 10462
+  BB bb 10462   BB bb 10462   BB bb 10462   BB bb 10462   BB bb 10462
+  CC aa 7154   CC aa 7154   CC aa 7154   CC aa 7154   CC bb 7154   CC bb 7154
+  DD aa 6571   DD aa 6571   DD aa 6571   DD bb 6571   DD bb 6571   DD bb 6571
+  DD bb 6571   EE aa 8207   EE aa 8207   EE bb 8207   EE bb 8207   EE bb 8207
+  FF aa 10136   FF aa 10136   FF aa 10136   FF aa 10136   FF bb 10136
+  FF bb 10136   FF bb 10136   FF bb 10136   FF bb 10136   FF bb 10136
+  GG aa 9911   GG aa 9911   GG aa 9911   GG aa 9911   GG bb 9911   GG bb 9911
+  GG bb 9911   GG bb 9911   HH aa 9083   HH aa 9083   HH aa 9083   HH bb 9083
+  HH bb 9083   HH bb 9083   HH bb 9083   HH bb 9083   HH bb 9083   II aa 7440
+  II aa 7440   II bb 7440   II bb 7440   II bb 7440   II bb 7440   II bb 7440
+  JJ aa 3800   JJ aa 3800   JJ aa 3800   JJ aa 3800   JJ bb 3800   JJ bb 3800
+  JJ bb 3800   JJ bb 3800}
+
+do_execsql_test 1.13.2 {
+  SELECT a, b, sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN CURRENT ROW         AND 1 FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 4685   AA aa 4685   AA aa 4685   AA aa 4685   AA bb 5251   AA bb 5251
+  AA bb 5251   AA bb 5251   BB aa 7340   BB aa 7340   BB aa 7340   BB aa 7340
+  BB aa 7340   BB aa 7340   BB bb 6421   BB bb 6421   BB bb 6421   BB bb 6421
+  BB bb 6421   BB bb 6421   CC aa 3122   CC aa 3122   CC aa 3122   CC aa 3122
+  CC bb 2493   CC bb 2493   DD aa 4032   DD aa 4032   DD aa 4032   DD bb 3597
+  DD bb 3597   DD bb 3597   DD bb 3597   EE aa 2539   EE aa 2539   EE bb 3812
+  EE bb 3812   EE bb 3812   FF aa 5668   FF aa 5668   FF aa 5668   FF aa 5668
+  FF bb 5102   FF bb 5102   FF bb 5102   FF bb 5102   FF bb 5102   FF bb 5102
+  GG aa 4468   GG aa 4468   GG aa 4468   GG aa 4468   GG bb 5120   GG bb 5120
+  GG bb 5120   GG bb 5120   HH aa 5443   HH aa 5443   HH aa 5443   HH bb 4244
+  HH bb 4244   HH bb 4244   HH bb 4244   HH bb 4244   HH bb 4244   II aa 3640
+  II aa 3640   II bb 4604   II bb 4604   II bb 4604   II bb 4604   II bb 4604
+  JJ aa 3800   JJ aa 3800   JJ aa 3800   JJ aa 3800   JJ bb 1786   JJ bb 1786
+  JJ bb 1786   JJ bb 1786}
+
+do_execsql_test 1.13.3 {
+  SELECT a, b, rank() OVER (ORDER BY a  GROUPS BETWEEN CURRENT ROW         AND 1 FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 1   AA aa 1   AA aa 1   AA aa 1   AA bb 1   AA bb 1   AA bb 1
+  AA bb 1   BB aa 9   BB aa 9   BB aa 9   BB aa 9   BB aa 9   BB aa 9
+  BB bb 9   BB bb 9   BB bb 9   BB bb 9   BB bb 9   BB bb 9   CC aa 21
+  CC aa 21   CC aa 21   CC aa 21   CC bb 21   CC bb 21   DD aa 27   DD aa 27
+  DD aa 27   DD bb 27   DD bb 27   DD bb 27   DD bb 27   EE aa 34   EE aa 34
+  EE bb 34   EE bb 34   EE bb 34   FF aa 39   FF aa 39   FF aa 39   FF aa 39
+  FF bb 39   FF bb 39   FF bb 39   FF bb 39   FF bb 39   FF bb 39   GG aa 49
+  GG aa 49   GG aa 49   GG aa 49   GG bb 49   GG bb 49   GG bb 49   GG bb 49
+  HH aa 57   HH aa 57   HH aa 57   HH bb 57   HH bb 57   HH bb 57   HH bb 57
+  HH bb 57   HH bb 57   II aa 66   II aa 66   II bb 66   II bb 66   II bb 66
+  II bb 66   II bb 66   JJ aa 73   JJ aa 73   JJ aa 73   JJ aa 73   JJ bb 73
+  JJ bb 73   JJ bb 73   JJ bb 73}
+
+do_execsql_test 1.13.4 {
+  SELECT a, b, max(c) OVER (ORDER BY a,b  GROUPS BETWEEN CURRENT ROW         AND 1 FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 934   AA aa 934   AA aa 934   AA aa 934   AA bb 870   AA bb 870
+  AA bb 870   AA bb 870   BB aa 840   BB aa 840   BB aa 840   BB aa 840
+  BB aa 840   BB aa 840   BB bb 840   BB bb 840   BB bb 840   BB bb 840
+  BB bb 840   BB bb 840   CC aa 822   CC aa 822   CC aa 822   CC aa 822
+  CC bb 845   CC bb 845   DD aa 959   DD aa 959   DD aa 959   DD bb 959
+  DD bb 959   DD bb 959   DD bb 959   EE aa 777   EE aa 777   EE bb 768
+  EE bb 768   EE bb 768   FF aa 938   FF aa 938   FF aa 938   FF aa 938
+  FF bb 938   FF bb 938   FF bb 938   FF bb 938   FF bb 938   FF bb 938
+  GG aa 938   GG aa 938   GG aa 938   GG aa 938   GG bb 979   GG bb 979
+  GG bb 979   GG bb 979   HH aa 979   HH aa 979   HH aa 979   HH bb 963
+  HH bb 963   HH bb 963   HH bb 963   HH bb 963   HH bb 963   II aa 805
+  II aa 805   II bb 899   II bb 899   II bb 899   II bb 899   II bb 899
+  JJ aa 899   JJ aa 899   JJ aa 899   JJ aa 899   JJ bb 839   JJ bb 839
+  JJ bb 839   JJ bb 839}
+
+do_execsql_test 1.13.5 {
+  SELECT a, b, min(c) OVER (ORDER BY a,b  GROUPS BETWEEN CURRENT ROW         AND 1 FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 223   AA aa 223   AA aa 223   AA aa 223   AA bb 247   AA bb 247
+  AA bb 247   AA bb 247   BB aa 247   BB aa 247   BB aa 247   BB aa 247
+  BB aa 247   BB aa 247   BB bb 158   BB bb 158   BB bb 158   BB bb 158
+  BB bb 158   BB bb 158   CC aa 158   CC aa 158   CC aa 158   CC aa 158
+  CC bb 224   CC bb 224   DD aa 224   DD aa 224   DD aa 224   DD bb 113
+  DD bb 113   DD bb 113   DD bb 113   EE aa 113   EE aa 113   EE bb 208
+  EE bb 208   EE bb 208   FF aa 102   FF aa 102   FF aa 102   FF aa 102
+  FF bb 102   FF bb 102   FF bb 102   FF bb 102   FF bb 102   FF bb 102
+  GG aa 148   GG aa 148   GG aa 148   GG aa 148   GG bb 160   GG bb 160
+  GG bb 160   GG bb 160   HH aa 133   HH aa 133   HH aa 133   HH bb 133
+  HH bb 133   HH bb 133   HH bb 133   HH bb 133   HH bb 133   II aa 250
+  II aa 250   II bb 113   II bb 113   II bb 113   II bb 113   II bb 113
+  JJ aa 113   JJ aa 113   JJ aa 113   JJ aa 113   JJ bb 257   JJ bb 257
+  JJ bb 257   JJ bb 257}
+
+do_execsql_test 1.13.6 {
+  SELECT a, b, sum(c) OVER (ORDER BY a  GROUPS BETWEEN CURRENT ROW         AND 1 FOLLOWING  EXCLUDE CURRENT ROW) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 11091   AA aa 11114   AA aa 11786   AA aa 11802   AA bb 11155
+  AA bb 11398   AA bb 11453   AA bb 11716   BB aa 9700   BB aa 9802
+  BB aa 10050   BB aa 10063   BB aa 10069   BB aa 10215   BB bb 9622
+  BB bb 9670   BB bb 9676   BB bb 9751   BB bb 9757   BB bb 9829   CC aa 6395
+  CC aa 6547   CC aa 6724   CC aa 6996   CC bb 6332   CC bb 6808   DD aa 5726
+  DD aa 6315   DD aa 6347   DD bb 5612   DD bb 5777   DD bb 5855   DD bb 6333
+  EE aa 7430   EE aa 8094   EE bb 7439   EE bb 7578   EE bb 7955   FF aa 9466
+  FF aa 9469   FF aa 9518   FF aa 9928   FF bb 9198   FF bb 9266   FF bb 9410
+  FF bb 9562   FF bb 9841   FF bb 10034   GG aa 9277   GG aa 9431
+  GG aa 9576   GG aa 9763   GG bb 8973   GG bb 8982   GG bb 9067   GG bb 9751
+  HH aa 8104   HH aa 8293   HH aa 8603   HH bb 8120   HH bb 8353   HH bb 8400
+  HH bb 8728   HH bb 8753   HH bb 8950   II aa 6788   II aa 7042   II bb 6635
+  II bb 6769   II bb 6997   II bb 7019   II bb 7190   JJ aa 2901   JJ aa 3032
+  JJ aa 3566   JJ aa 3687   JJ bb 2961   JJ bb 3446   JJ bb 3464   JJ bb 3543}
+
+do_execsql_test 1.13.7 {
+  SELECT a, b, sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN CURRENT ROW         AND 1 FOLLOWING  EXCLUDE CURRENT ROW) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 3751   AA aa 3774   AA aa 4446   AA aa 4462   AA bb 4381   AA bb 4624
+  AA bb 4679   AA bb 4942   BB aa 6578   BB aa 6680   BB aa 6928   BB aa 6941
+  BB aa 6947   BB aa 7093   BB bb 5581   BB bb 5629   BB bb 5635   BB bb 5710
+  BB bb 5716   BB bb 5788   CC aa 2363   CC aa 2515   CC aa 2692   CC aa 2964
+  CC bb 1671   CC bb 2147   DD aa 3187   DD aa 3776   DD aa 3808   DD bb 2638
+  DD bb 2803   DD bb 2881   DD bb 3359   EE aa 1762   EE aa 2426   EE bb 3044
+  EE bb 3183   EE bb 3560   FF aa 4998   FF aa 5001   FF aa 5050   FF aa 5460
+  FF bb 4164   FF bb 4232   FF bb 4376   FF bb 4528   FF bb 4807   FF bb 5000
+  GG aa 3834   GG aa 3988   GG aa 4133   GG aa 4320   GG bb 4182   GG bb 4191
+  GG bb 4276   GG bb 4960   HH aa 4464   HH aa 4653   HH aa 4963   HH bb 3281
+  HH bb 3514   HH bb 3561   HH bb 3889   HH bb 3914   HH bb 4111   II aa 2988
+  II aa 3242   II bb 3799   II bb 3933   II bb 4161   II bb 4183   II bb 4354
+  JJ aa 2901   JJ aa 3032   JJ aa 3566   JJ aa 3687   JJ bb 947   JJ bb 1432
+  JJ bb 1450   JJ bb 1529}
+
+do_execsql_test 1.13.8 {
+  SELECT a, b, 
+      sum(c) OVER (ORDER BY a  GROUPS BETWEEN CURRENT ROW         AND 1 FOLLOWING  EXCLUDE CURRENT ROW),
+      sum(c) OVER (ORDER BY a  GROUPS BETWEEN CURRENT ROW         AND 1 FOLLOWING ),
+      sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN CURRENT ROW         AND 1 FOLLOWING  EXCLUDE CURRENT ROW),
+      sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN CURRENT ROW         AND 1 FOLLOWING )
+    FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 11091 12025 3751 4685   AA aa 11114 12025 3774 4685
+  AA aa 11786 12025 4446 4685   AA aa 11802 12025 4462 4685
+  AA bb 11155 12025 4381 5251   AA bb 11398 12025 4624 5251
+  AA bb 11453 12025 4679 5251   AA bb 11716 12025 4942 5251
+  BB aa 9700 10462 6578 7340   BB aa 9802 10462 6680 7340
+  BB aa 10050 10462 6928 7340   BB aa 10063 10462 6941 7340
+  BB aa 10069 10462 6947 7340   BB aa 10215 10462 7093 7340
+  BB bb 9622 10462 5581 6421   BB bb 9670 10462 5629 6421
+  BB bb 9676 10462 5635 6421   BB bb 9751 10462 5710 6421
+  BB bb 9757 10462 5716 6421   BB bb 9829 10462 5788 6421
+  CC aa 6395 7154 2363 3122   CC aa 6547 7154 2515 3122
+  CC aa 6724 7154 2692 3122   CC aa 6996 7154 2964 3122
+  CC bb 6332 7154 1671 2493   CC bb 6808 7154 2147 2493
+  DD aa 5726 6571 3187 4032   DD aa 6315 6571 3776 4032
+  DD aa 6347 6571 3808 4032   DD bb 5612 6571 2638 3597
+  DD bb 5777 6571 2803 3597   DD bb 5855 6571 2881 3597
+  DD bb 6333 6571 3359 3597   EE aa 7430 8207 1762 2539
+  EE aa 8094 8207 2426 2539   EE bb 7439 8207 3044 3812
+  EE bb 7578 8207 3183 3812   EE bb 7955 8207 3560 3812
+  FF aa 9466 10136 4998 5668   FF aa 9469 10136 5001 5668
+  FF aa 9518 10136 5050 5668   FF aa 9928 10136 5460 5668
+  FF bb 9198 10136 4164 5102   FF bb 9266 10136 4232 5102
+  FF bb 9410 10136 4376 5102   FF bb 9562 10136 4528 5102
+  FF bb 9841 10136 4807 5102   FF bb 10034 10136 5000 5102
+  GG aa 9277 9911 3834 4468   GG aa 9431 9911 3988 4468
+  GG aa 9576 9911 4133 4468   GG aa 9763 9911 4320 4468
+  GG bb 8973 9911 4182 5120   GG bb 8982 9911 4191 5120
+  GG bb 9067 9911 4276 5120   GG bb 9751 9911 4960 5120
+  HH aa 8104 9083 4464 5443   HH aa 8293 9083 4653 5443
+  HH aa 8603 9083 4963 5443   HH bb 8120 9083 3281 4244
+  HH bb 8353 9083 3514 4244   HH bb 8400 9083 3561 4244
+  HH bb 8728 9083 3889 4244   HH bb 8753 9083 3914 4244
+  HH bb 8950 9083 4111 4244   II aa 6788 7440 2988 3640
+  II aa 7042 7440 3242 3640   II bb 6635 7440 3799 4604
+  II bb 6769 7440 3933 4604   II bb 6997 7440 4161 4604
+  II bb 7019 7440 4183 4604   II bb 7190 7440 4354 4604
+  JJ aa 2901 3800 2901 3800   JJ aa 3032 3800 3032 3800
+  JJ aa 3566 3800 3566 3800   JJ aa 3687 3800 3687 3800
+  JJ bb 2961 3800 947 1786   JJ bb 3446 3800 1432 1786
+  JJ bb 3464 3800 1450 1786   JJ bb 3543 3800 1529 1786}
+
+do_execsql_test 1.14.1 {
+  SELECT a, b, sum(c) OVER (ORDER BY a  GROUPS BETWEEN CURRENT ROW         AND 100 FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 44737   AA aa 44737   AA aa 44737   AA aa 44737   AA bb 44737
+  AA bb 44737   AA bb 44737   AA bb 44737   BB aa 40052   BB aa 40052
+  BB aa 40052   BB aa 40052   BB aa 40052   BB aa 40052   BB bb 40052
+  BB bb 40052   BB bb 40052   BB bb 40052   BB bb 40052   BB bb 40052
+  CC aa 32712   CC aa 32712   CC aa 32712   CC aa 32712   CC bb 32712
+  CC bb 32712   DD aa 29590   DD aa 29590   DD aa 29590   DD bb 29590
+  DD bb 29590   DD bb 29590   DD bb 29590   EE aa 25558   EE aa 25558
+  EE bb 25558   EE bb 25558   EE bb 25558   FF aa 23019   FF aa 23019
+  FF aa 23019   FF aa 23019   FF bb 23019   FF bb 23019   FF bb 23019
+  FF bb 23019   FF bb 23019   FF bb 23019   GG aa 17351   GG aa 17351
+  GG aa 17351   GG aa 17351   GG bb 17351   GG bb 17351   GG bb 17351
+  GG bb 17351   HH aa 12883   HH aa 12883   HH aa 12883   HH bb 12883
+  HH bb 12883   HH bb 12883   HH bb 12883   HH bb 12883   HH bb 12883
+  II aa 7440   II aa 7440   II bb 7440   II bb 7440   II bb 7440   II bb 7440
+  II bb 7440   JJ aa 3800   JJ aa 3800   JJ aa 3800   JJ aa 3800   JJ bb 3800
+  JJ bb 3800   JJ bb 3800   JJ bb 3800}
+
+do_execsql_test 1.14.2 {
+  SELECT a, b, sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN CURRENT ROW         AND 100 FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 44737   AA aa 44737   AA aa 44737   AA aa 44737   AA bb 42430
+  AA bb 42430   AA bb 42430   AA bb 42430   BB aa 40052   BB aa 40052
+  BB aa 40052   BB aa 40052   BB aa 40052   BB aa 40052   BB bb 37179
+  BB bb 37179   BB bb 37179   BB bb 37179   BB bb 37179   BB bb 37179
+  CC aa 32712   CC aa 32712   CC aa 32712   CC aa 32712   CC bb 30758
+  CC bb 30758   DD aa 29590   DD aa 29590   DD aa 29590   DD bb 28265
+  DD bb 28265   DD bb 28265   DD bb 28265   EE aa 25558   EE aa 25558
+  EE bb 24668   EE bb 24668   EE bb 24668   FF aa 23019   FF aa 23019
+  FF aa 23019   FF aa 23019   FF bb 20856   FF bb 20856   FF bb 20856
+  FF bb 20856   FF bb 20856   FF bb 20856   GG aa 17351   GG aa 17351
+  GG aa 17351   GG aa 17351   GG bb 15754   GG bb 15754   GG bb 15754
+  GG bb 15754   HH aa 12883   HH aa 12883   HH aa 12883   HH bb 10634
+  HH bb 10634   HH bb 10634   HH bb 10634   HH bb 10634   HH bb 10634
+  II aa 7440   II aa 7440   II bb 6390   II bb 6390   II bb 6390   II bb 6390
+  II bb 6390   JJ aa 3800   JJ aa 3800   JJ aa 3800   JJ aa 3800   JJ bb 1786
+  JJ bb 1786   JJ bb 1786   JJ bb 1786}
+
+do_execsql_test 1.14.3 {
+  SELECT a, b, rank() OVER (ORDER BY a  GROUPS BETWEEN CURRENT ROW         AND 100 FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 1   AA aa 1   AA aa 1   AA aa 1   AA bb 1   AA bb 1   AA bb 1
+  AA bb 1   BB aa 9   BB aa 9   BB aa 9   BB aa 9   BB aa 9   BB aa 9
+  BB bb 9   BB bb 9   BB bb 9   BB bb 9   BB bb 9   BB bb 9   CC aa 21
+  CC aa 21   CC aa 21   CC aa 21   CC bb 21   CC bb 21   DD aa 27   DD aa 27
+  DD aa 27   DD bb 27   DD bb 27   DD bb 27   DD bb 27   EE aa 34   EE aa 34
+  EE bb 34   EE bb 34   EE bb 34   FF aa 39   FF aa 39   FF aa 39   FF aa 39
+  FF bb 39   FF bb 39   FF bb 39   FF bb 39   FF bb 39   FF bb 39   GG aa 49
+  GG aa 49   GG aa 49   GG aa 49   GG bb 49   GG bb 49   GG bb 49   GG bb 49
+  HH aa 57   HH aa 57   HH aa 57   HH bb 57   HH bb 57   HH bb 57   HH bb 57
+  HH bb 57   HH bb 57   II aa 66   II aa 66   II bb 66   II bb 66   II bb 66
+  II bb 66   II bb 66   JJ aa 73   JJ aa 73   JJ aa 73   JJ aa 73   JJ bb 73
+  JJ bb 73   JJ bb 73   JJ bb 73}
+
+do_execsql_test 1.14.4 {
+  SELECT a, b, max(c) OVER (ORDER BY a,b  GROUPS BETWEEN CURRENT ROW         AND 100 FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 979   AA aa 979   AA aa 979   AA aa 979   AA bb 979   AA bb 979
+  AA bb 979   AA bb 979   BB aa 979   BB aa 979   BB aa 979   BB aa 979
+  BB aa 979   BB aa 979   BB bb 979   BB bb 979   BB bb 979   BB bb 979
+  BB bb 979   BB bb 979   CC aa 979   CC aa 979   CC aa 979   CC aa 979
+  CC bb 979   CC bb 979   DD aa 979   DD aa 979   DD aa 979   DD bb 979
+  DD bb 979   DD bb 979   DD bb 979   EE aa 979   EE aa 979   EE bb 979
+  EE bb 979   EE bb 979   FF aa 979   FF aa 979   FF aa 979   FF aa 979
+  FF bb 979   FF bb 979   FF bb 979   FF bb 979   FF bb 979   FF bb 979
+  GG aa 979   GG aa 979   GG aa 979   GG aa 979   GG bb 979   GG bb 979
+  GG bb 979   GG bb 979   HH aa 979   HH aa 979   HH aa 979   HH bb 963
+  HH bb 963   HH bb 963   HH bb 963   HH bb 963   HH bb 963   II aa 899
+  II aa 899   II bb 899   II bb 899   II bb 899   II bb 899   II bb 899
+  JJ aa 899   JJ aa 899   JJ aa 899   JJ aa 899   JJ bb 839   JJ bb 839
+  JJ bb 839   JJ bb 839}
+
+do_execsql_test 1.14.5 {
+  SELECT a, b, min(c) OVER (ORDER BY a,b  GROUPS BETWEEN CURRENT ROW         AND 100 FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 102   AA aa 102   AA aa 102   AA aa 102   AA bb 102   AA bb 102
+  AA bb 102   AA bb 102   BB aa 102   BB aa 102   BB aa 102   BB aa 102
+  BB aa 102   BB aa 102   BB bb 102   BB bb 102   BB bb 102   BB bb 102
+  BB bb 102   BB bb 102   CC aa 102   CC aa 102   CC aa 102   CC aa 102
+  CC bb 102   CC bb 102   DD aa 102   DD aa 102   DD aa 102   DD bb 102
+  DD bb 102   DD bb 102   DD bb 102   EE aa 102   EE aa 102   EE bb 102
+  EE bb 102   EE bb 102   FF aa 102   FF aa 102   FF aa 102   FF aa 102
+  FF bb 102   FF bb 102   FF bb 102   FF bb 102   FF bb 102   FF bb 102
+  GG aa 113   GG aa 113   GG aa 113   GG aa 113   GG bb 113   GG bb 113
+  GG bb 113   GG bb 113   HH aa 113   HH aa 113   HH aa 113   HH bb 113
+  HH bb 113   HH bb 113   HH bb 113   HH bb 113   HH bb 113   II aa 113
+  II aa 113   II bb 113   II bb 113   II bb 113   II bb 113   II bb 113
+  JJ aa 113   JJ aa 113   JJ aa 113   JJ aa 113   JJ bb 257   JJ bb 257
+  JJ bb 257   JJ bb 257}
+
+do_execsql_test 1.14.6 {
+  SELECT a, b, sum(c) OVER (ORDER BY a  GROUPS BETWEEN CURRENT ROW         AND 100 FOLLOWING  EXCLUDE CURRENT ROW) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 43803   AA aa 43826   AA aa 44498   AA aa 44514   AA bb 43867
+  AA bb 44110   AA bb 44165   AA bb 44428   BB aa 39290   BB aa 39392
+  BB aa 39640   BB aa 39653   BB aa 39659   BB aa 39805   BB bb 39212
+  BB bb 39260   BB bb 39266   BB bb 39341   BB bb 39347   BB bb 39419
+  CC aa 31953   CC aa 32105   CC aa 32282   CC aa 32554   CC bb 31890
+  CC bb 32366   DD aa 28745   DD aa 29334   DD aa 29366   DD bb 28631
+  DD bb 28796   DD bb 28874   DD bb 29352   EE aa 24781   EE aa 25445
+  EE bb 24790   EE bb 24929   EE bb 25306   FF aa 22349   FF aa 22352
+  FF aa 22401   FF aa 22811   FF bb 22081   FF bb 22149   FF bb 22293
+  FF bb 22445   FF bb 22724   FF bb 22917   GG aa 16717   GG aa 16871
+  GG aa 17016   GG aa 17203   GG bb 16413   GG bb 16422   GG bb 16507
+  GG bb 17191   HH aa 11904   HH aa 12093   HH aa 12403   HH bb 11920
+  HH bb 12153   HH bb 12200   HH bb 12528   HH bb 12553   HH bb 12750
+  II aa 6788   II aa 7042   II bb 6635   II bb 6769   II bb 6997   II bb 7019
+  II bb 7190   JJ aa 2901   JJ aa 3032   JJ aa 3566   JJ aa 3687   JJ bb 2961
+  JJ bb 3446   JJ bb 3464   JJ bb 3543}
+
+do_execsql_test 1.14.7 {
+  SELECT a, b, sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN CURRENT ROW         AND 100 FOLLOWING  EXCLUDE CURRENT ROW) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 43803   AA aa 43826   AA aa 44498   AA aa 44514   AA bb 41560
+  AA bb 41803   AA bb 41858   AA bb 42121   BB aa 39290   BB aa 39392
+  BB aa 39640   BB aa 39653   BB aa 39659   BB aa 39805   BB bb 36339
+  BB bb 36387   BB bb 36393   BB bb 36468   BB bb 36474   BB bb 36546
+  CC aa 31953   CC aa 32105   CC aa 32282   CC aa 32554   CC bb 29936
+  CC bb 30412   DD aa 28745   DD aa 29334   DD aa 29366   DD bb 27306
+  DD bb 27471   DD bb 27549   DD bb 28027   EE aa 24781   EE aa 25445
+  EE bb 23900   EE bb 24039   EE bb 24416   FF aa 22349   FF aa 22352
+  FF aa 22401   FF aa 22811   FF bb 19918   FF bb 19986   FF bb 20130
+  FF bb 20282   FF bb 20561   FF bb 20754   GG aa 16717   GG aa 16871
+  GG aa 17016   GG aa 17203   GG bb 14816   GG bb 14825   GG bb 14910
+  GG bb 15594   HH aa 11904   HH aa 12093   HH aa 12403   HH bb 9671
+  HH bb 9904   HH bb 9951   HH bb 10279   HH bb 10304   HH bb 10501
+  II aa 6788   II aa 7042   II bb 5585   II bb 5719   II bb 5947   II bb 5969
+  II bb 6140   JJ aa 2901   JJ aa 3032   JJ aa 3566   JJ aa 3687   JJ bb 947
+  JJ bb 1432   JJ bb 1450   JJ bb 1529}
+
+do_execsql_test 1.14.8 {
+  SELECT a, b, 
+      sum(c) OVER (ORDER BY a  GROUPS BETWEEN CURRENT ROW         AND 100 FOLLOWING  EXCLUDE CURRENT ROW),
+      sum(c) OVER (ORDER BY a  GROUPS BETWEEN CURRENT ROW         AND 100 FOLLOWING ),
+      sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN CURRENT ROW         AND 100 FOLLOWING  EXCLUDE CURRENT ROW),
+      sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN CURRENT ROW         AND 100 FOLLOWING )
+    FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 43803 44737 43803 44737   AA aa 43826 44737 43826 44737
+  AA aa 44498 44737 44498 44737   AA aa 44514 44737 44514 44737
+  AA bb 43867 44737 41560 42430   AA bb 44110 44737 41803 42430
+  AA bb 44165 44737 41858 42430   AA bb 44428 44737 42121 42430
+  BB aa 39290 40052 39290 40052   BB aa 39392 40052 39392 40052
+  BB aa 39640 40052 39640 40052   BB aa 39653 40052 39653 40052
+  BB aa 39659 40052 39659 40052   BB aa 39805 40052 39805 40052
+  BB bb 39212 40052 36339 37179   BB bb 39260 40052 36387 37179
+  BB bb 39266 40052 36393 37179   BB bb 39341 40052 36468 37179
+  BB bb 39347 40052 36474 37179   BB bb 39419 40052 36546 37179
+  CC aa 31953 32712 31953 32712   CC aa 32105 32712 32105 32712
+  CC aa 32282 32712 32282 32712   CC aa 32554 32712 32554 32712
+  CC bb 31890 32712 29936 30758   CC bb 32366 32712 30412 30758
+  DD aa 28745 29590 28745 29590   DD aa 29334 29590 29334 29590
+  DD aa 29366 29590 29366 29590   DD bb 28631 29590 27306 28265
+  DD bb 28796 29590 27471 28265   DD bb 28874 29590 27549 28265
+  DD bb 29352 29590 28027 28265   EE aa 24781 25558 24781 25558
+  EE aa 25445 25558 25445 25558   EE bb 24790 25558 23900 24668
+  EE bb 24929 25558 24039 24668   EE bb 25306 25558 24416 24668
+  FF aa 22349 23019 22349 23019   FF aa 22352 23019 22352 23019
+  FF aa 22401 23019 22401 23019   FF aa 22811 23019 22811 23019
+  FF bb 22081 23019 19918 20856   FF bb 22149 23019 19986 20856
+  FF bb 22293 23019 20130 20856   FF bb 22445 23019 20282 20856
+  FF bb 22724 23019 20561 20856   FF bb 22917 23019 20754 20856
+  GG aa 16717 17351 16717 17351   GG aa 16871 17351 16871 17351
+  GG aa 17016 17351 17016 17351   GG aa 17203 17351 17203 17351
+  GG bb 16413 17351 14816 15754   GG bb 16422 17351 14825 15754
+  GG bb 16507 17351 14910 15754   GG bb 17191 17351 15594 15754
+  HH aa 11904 12883 11904 12883   HH aa 12093 12883 12093 12883
+  HH aa 12403 12883 12403 12883   HH bb 11920 12883 9671 10634
+  HH bb 12153 12883 9904 10634   HH bb 12200 12883 9951 10634
+  HH bb 12528 12883 10279 10634   HH bb 12553 12883 10304 10634
+  HH bb 12750 12883 10501 10634   II aa 6788 7440 6788 7440
+  II aa 7042 7440 7042 7440   II bb 6635 7440 5585 6390
+  II bb 6769 7440 5719 6390   II bb 6997 7440 5947 6390
+  II bb 7019 7440 5969 6390   II bb 7190 7440 6140 6390
+  JJ aa 2901 3800 2901 3800   JJ aa 3032 3800 3032 3800
+  JJ aa 3566 3800 3566 3800   JJ aa 3687 3800 3687 3800
+  JJ bb 2961 3800 947 1786   JJ bb 3446 3800 1432 1786
+  JJ bb 3464 3800 1450 1786   JJ bb 3543 3800 1529 1786}
+
+do_execsql_test 1.15.1 {
+  SELECT a, b, sum(c) OVER (ORDER BY a  GROUPS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 44737   AA aa 44737   AA aa 44737   AA aa 44737   AA bb 44737
+  AA bb 44737   AA bb 44737   AA bb 44737   BB aa 40052   BB aa 40052
+  BB aa 40052   BB aa 40052   BB aa 40052   BB aa 40052   BB bb 40052
+  BB bb 40052   BB bb 40052   BB bb 40052   BB bb 40052   BB bb 40052
+  CC aa 32712   CC aa 32712   CC aa 32712   CC aa 32712   CC bb 32712
+  CC bb 32712   DD aa 29590   DD aa 29590   DD aa 29590   DD bb 29590
+  DD bb 29590   DD bb 29590   DD bb 29590   EE aa 25558   EE aa 25558
+  EE bb 25558   EE bb 25558   EE bb 25558   FF aa 23019   FF aa 23019
+  FF aa 23019   FF aa 23019   FF bb 23019   FF bb 23019   FF bb 23019
+  FF bb 23019   FF bb 23019   FF bb 23019   GG aa 17351   GG aa 17351
+  GG aa 17351   GG aa 17351   GG bb 17351   GG bb 17351   GG bb 17351
+  GG bb 17351   HH aa 12883   HH aa 12883   HH aa 12883   HH bb 12883
+  HH bb 12883   HH bb 12883   HH bb 12883   HH bb 12883   HH bb 12883
+  II aa 7440   II aa 7440   II bb 7440   II bb 7440   II bb 7440   II bb 7440
+  II bb 7440   JJ aa 3800   JJ aa 3800   JJ aa 3800   JJ aa 3800   JJ bb 3800
+  JJ bb 3800   JJ bb 3800   JJ bb 3800}
+
+do_execsql_test 1.15.2 {
+  SELECT a, b, sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 44737   AA aa 44737   AA aa 44737   AA aa 44737   AA bb 42430
+  AA bb 42430   AA bb 42430   AA bb 42430   BB aa 40052   BB aa 40052
+  BB aa 40052   BB aa 40052   BB aa 40052   BB aa 40052   BB bb 37179
+  BB bb 37179   BB bb 37179   BB bb 37179   BB bb 37179   BB bb 37179
+  CC aa 32712   CC aa 32712   CC aa 32712   CC aa 32712   CC bb 30758
+  CC bb 30758   DD aa 29590   DD aa 29590   DD aa 29590   DD bb 28265
+  DD bb 28265   DD bb 28265   DD bb 28265   EE aa 25558   EE aa 25558
+  EE bb 24668   EE bb 24668   EE bb 24668   FF aa 23019   FF aa 23019
+  FF aa 23019   FF aa 23019   FF bb 20856   FF bb 20856   FF bb 20856
+  FF bb 20856   FF bb 20856   FF bb 20856   GG aa 17351   GG aa 17351
+  GG aa 17351   GG aa 17351   GG bb 15754   GG bb 15754   GG bb 15754
+  GG bb 15754   HH aa 12883   HH aa 12883   HH aa 12883   HH bb 10634
+  HH bb 10634   HH bb 10634   HH bb 10634   HH bb 10634   HH bb 10634
+  II aa 7440   II aa 7440   II bb 6390   II bb 6390   II bb 6390   II bb 6390
+  II bb 6390   JJ aa 3800   JJ aa 3800   JJ aa 3800   JJ aa 3800   JJ bb 1786
+  JJ bb 1786   JJ bb 1786   JJ bb 1786}
+
+do_execsql_test 1.15.3 {
+  SELECT a, b, rank() OVER (ORDER BY a  GROUPS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 1   AA aa 1   AA aa 1   AA aa 1   AA bb 1   AA bb 1   AA bb 1
+  AA bb 1   BB aa 9   BB aa 9   BB aa 9   BB aa 9   BB aa 9   BB aa 9
+  BB bb 9   BB bb 9   BB bb 9   BB bb 9   BB bb 9   BB bb 9   CC aa 21
+  CC aa 21   CC aa 21   CC aa 21   CC bb 21   CC bb 21   DD aa 27   DD aa 27
+  DD aa 27   DD bb 27   DD bb 27   DD bb 27   DD bb 27   EE aa 34   EE aa 34
+  EE bb 34   EE bb 34   EE bb 34   FF aa 39   FF aa 39   FF aa 39   FF aa 39
+  FF bb 39   FF bb 39   FF bb 39   FF bb 39   FF bb 39   FF bb 39   GG aa 49
+  GG aa 49   GG aa 49   GG aa 49   GG bb 49   GG bb 49   GG bb 49   GG bb 49
+  HH aa 57   HH aa 57   HH aa 57   HH bb 57   HH bb 57   HH bb 57   HH bb 57
+  HH bb 57   HH bb 57   II aa 66   II aa 66   II bb 66   II bb 66   II bb 66
+  II bb 66   II bb 66   JJ aa 73   JJ aa 73   JJ aa 73   JJ aa 73   JJ bb 73
+  JJ bb 73   JJ bb 73   JJ bb 73}
+
+do_execsql_test 1.15.4 {
+  SELECT a, b, max(c) OVER (ORDER BY a,b  GROUPS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 979   AA aa 979   AA aa 979   AA aa 979   AA bb 979   AA bb 979
+  AA bb 979   AA bb 979   BB aa 979   BB aa 979   BB aa 979   BB aa 979
+  BB aa 979   BB aa 979   BB bb 979   BB bb 979   BB bb 979   BB bb 979
+  BB bb 979   BB bb 979   CC aa 979   CC aa 979   CC aa 979   CC aa 979
+  CC bb 979   CC bb 979   DD aa 979   DD aa 979   DD aa 979   DD bb 979
+  DD bb 979   DD bb 979   DD bb 979   EE aa 979   EE aa 979   EE bb 979
+  EE bb 979   EE bb 979   FF aa 979   FF aa 979   FF aa 979   FF aa 979
+  FF bb 979   FF bb 979   FF bb 979   FF bb 979   FF bb 979   FF bb 979
+  GG aa 979   GG aa 979   GG aa 979   GG aa 979   GG bb 979   GG bb 979
+  GG bb 979   GG bb 979   HH aa 979   HH aa 979   HH aa 979   HH bb 963
+  HH bb 963   HH bb 963   HH bb 963   HH bb 963   HH bb 963   II aa 899
+  II aa 899   II bb 899   II bb 899   II bb 899   II bb 899   II bb 899
+  JJ aa 899   JJ aa 899   JJ aa 899   JJ aa 899   JJ bb 839   JJ bb 839
+  JJ bb 839   JJ bb 839}
+
+do_execsql_test 1.15.5 {
+  SELECT a, b, min(c) OVER (ORDER BY a,b  GROUPS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 102   AA aa 102   AA aa 102   AA aa 102   AA bb 102   AA bb 102
+  AA bb 102   AA bb 102   BB aa 102   BB aa 102   BB aa 102   BB aa 102
+  BB aa 102   BB aa 102   BB bb 102   BB bb 102   BB bb 102   BB bb 102
+  BB bb 102   BB bb 102   CC aa 102   CC aa 102   CC aa 102   CC aa 102
+  CC bb 102   CC bb 102   DD aa 102   DD aa 102   DD aa 102   DD bb 102
+  DD bb 102   DD bb 102   DD bb 102   EE aa 102   EE aa 102   EE bb 102
+  EE bb 102   EE bb 102   FF aa 102   FF aa 102   FF aa 102   FF aa 102
+  FF bb 102   FF bb 102   FF bb 102   FF bb 102   FF bb 102   FF bb 102
+  GG aa 113   GG aa 113   GG aa 113   GG aa 113   GG bb 113   GG bb 113
+  GG bb 113   GG bb 113   HH aa 113   HH aa 113   HH aa 113   HH bb 113
+  HH bb 113   HH bb 113   HH bb 113   HH bb 113   HH bb 113   II aa 113
+  II aa 113   II bb 113   II bb 113   II bb 113   II bb 113   II bb 113
+  JJ aa 113   JJ aa 113   JJ aa 113   JJ aa 113   JJ bb 257   JJ bb 257
+  JJ bb 257   JJ bb 257}
+
+do_execsql_test 1.15.6 {
+  SELECT a, b, sum(c) OVER (ORDER BY a  GROUPS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING  EXCLUDE CURRENT ROW) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 43803   AA aa 43826   AA aa 44498   AA aa 44514   AA bb 43867
+  AA bb 44110   AA bb 44165   AA bb 44428   BB aa 39290   BB aa 39392
+  BB aa 39640   BB aa 39653   BB aa 39659   BB aa 39805   BB bb 39212
+  BB bb 39260   BB bb 39266   BB bb 39341   BB bb 39347   BB bb 39419
+  CC aa 31953   CC aa 32105   CC aa 32282   CC aa 32554   CC bb 31890
+  CC bb 32366   DD aa 28745   DD aa 29334   DD aa 29366   DD bb 28631
+  DD bb 28796   DD bb 28874   DD bb 29352   EE aa 24781   EE aa 25445
+  EE bb 24790   EE bb 24929   EE bb 25306   FF aa 22349   FF aa 22352
+  FF aa 22401   FF aa 22811   FF bb 22081   FF bb 22149   FF bb 22293
+  FF bb 22445   FF bb 22724   FF bb 22917   GG aa 16717   GG aa 16871
+  GG aa 17016   GG aa 17203   GG bb 16413   GG bb 16422   GG bb 16507
+  GG bb 17191   HH aa 11904   HH aa 12093   HH aa 12403   HH bb 11920
+  HH bb 12153   HH bb 12200   HH bb 12528   HH bb 12553   HH bb 12750
+  II aa 6788   II aa 7042   II bb 6635   II bb 6769   II bb 6997   II bb 7019
+  II bb 7190   JJ aa 2901   JJ aa 3032   JJ aa 3566   JJ aa 3687   JJ bb 2961
+  JJ bb 3446   JJ bb 3464   JJ bb 3543}
+
+do_execsql_test 1.15.7 {
+  SELECT a, b, sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING  EXCLUDE CURRENT ROW) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 43803   AA aa 43826   AA aa 44498   AA aa 44514   AA bb 41560
+  AA bb 41803   AA bb 41858   AA bb 42121   BB aa 39290   BB aa 39392
+  BB aa 39640   BB aa 39653   BB aa 39659   BB aa 39805   BB bb 36339
+  BB bb 36387   BB bb 36393   BB bb 36468   BB bb 36474   BB bb 36546
+  CC aa 31953   CC aa 32105   CC aa 32282   CC aa 32554   CC bb 29936
+  CC bb 30412   DD aa 28745   DD aa 29334   DD aa 29366   DD bb 27306
+  DD bb 27471   DD bb 27549   DD bb 28027   EE aa 24781   EE aa 25445
+  EE bb 23900   EE bb 24039   EE bb 24416   FF aa 22349   FF aa 22352
+  FF aa 22401   FF aa 22811   FF bb 19918   FF bb 19986   FF bb 20130
+  FF bb 20282   FF bb 20561   FF bb 20754   GG aa 16717   GG aa 16871
+  GG aa 17016   GG aa 17203   GG bb 14816   GG bb 14825   GG bb 14910
+  GG bb 15594   HH aa 11904   HH aa 12093   HH aa 12403   HH bb 9671
+  HH bb 9904   HH bb 9951   HH bb 10279   HH bb 10304   HH bb 10501
+  II aa 6788   II aa 7042   II bb 5585   II bb 5719   II bb 5947   II bb 5969
+  II bb 6140   JJ aa 2901   JJ aa 3032   JJ aa 3566   JJ aa 3687   JJ bb 947
+  JJ bb 1432   JJ bb 1450   JJ bb 1529}
+
+do_execsql_test 1.15.8 {
+  SELECT a, b, 
+      sum(c) OVER (ORDER BY a  GROUPS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING  EXCLUDE CURRENT ROW),
+      sum(c) OVER (ORDER BY a  GROUPS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING ),
+      sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING  EXCLUDE CURRENT ROW),
+      sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN CURRENT ROW         AND UNBOUNDED FOLLOWING )
+    FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 43803 44737 43803 44737   AA aa 43826 44737 43826 44737
+  AA aa 44498 44737 44498 44737   AA aa 44514 44737 44514 44737
+  AA bb 43867 44737 41560 42430   AA bb 44110 44737 41803 42430
+  AA bb 44165 44737 41858 42430   AA bb 44428 44737 42121 42430
+  BB aa 39290 40052 39290 40052   BB aa 39392 40052 39392 40052
+  BB aa 39640 40052 39640 40052   BB aa 39653 40052 39653 40052
+  BB aa 39659 40052 39659 40052   BB aa 39805 40052 39805 40052
+  BB bb 39212 40052 36339 37179   BB bb 39260 40052 36387 37179
+  BB bb 39266 40052 36393 37179   BB bb 39341 40052 36468 37179
+  BB bb 39347 40052 36474 37179   BB bb 39419 40052 36546 37179
+  CC aa 31953 32712 31953 32712   CC aa 32105 32712 32105 32712
+  CC aa 32282 32712 32282 32712   CC aa 32554 32712 32554 32712
+  CC bb 31890 32712 29936 30758   CC bb 32366 32712 30412 30758
+  DD aa 28745 29590 28745 29590   DD aa 29334 29590 29334 29590
+  DD aa 29366 29590 29366 29590   DD bb 28631 29590 27306 28265
+  DD bb 28796 29590 27471 28265   DD bb 28874 29590 27549 28265
+  DD bb 29352 29590 28027 28265   EE aa 24781 25558 24781 25558
+  EE aa 25445 25558 25445 25558   EE bb 24790 25558 23900 24668
+  EE bb 24929 25558 24039 24668   EE bb 25306 25558 24416 24668
+  FF aa 22349 23019 22349 23019   FF aa 22352 23019 22352 23019
+  FF aa 22401 23019 22401 23019   FF aa 22811 23019 22811 23019
+  FF bb 22081 23019 19918 20856   FF bb 22149 23019 19986 20856
+  FF bb 22293 23019 20130 20856   FF bb 22445 23019 20282 20856
+  FF bb 22724 23019 20561 20856   FF bb 22917 23019 20754 20856
+  GG aa 16717 17351 16717 17351   GG aa 16871 17351 16871 17351
+  GG aa 17016 17351 17016 17351   GG aa 17203 17351 17203 17351
+  GG bb 16413 17351 14816 15754   GG bb 16422 17351 14825 15754
+  GG bb 16507 17351 14910 15754   GG bb 17191 17351 15594 15754
+  HH aa 11904 12883 11904 12883   HH aa 12093 12883 12093 12883
+  HH aa 12403 12883 12403 12883   HH bb 11920 12883 9671 10634
+  HH bb 12153 12883 9904 10634   HH bb 12200 12883 9951 10634
+  HH bb 12528 12883 10279 10634   HH bb 12553 12883 10304 10634
+  HH bb 12750 12883 10501 10634   II aa 6788 7440 6788 7440
+  II aa 7042 7440 7042 7440   II bb 6635 7440 5585 6390
+  II bb 6769 7440 5719 6390   II bb 6997 7440 5947 6390
+  II bb 7019 7440 5969 6390   II bb 7190 7440 6140 6390
+  JJ aa 2901 3800 2901 3800   JJ aa 3032 3800 3032 3800
+  JJ aa 3566 3800 3566 3800   JJ aa 3687 3800 3687 3800
+  JJ bb 2961 3800 947 1786   JJ bb 3446 3800 1432 1786
+  JJ bb 3464 3800 1450 1786   JJ bb 3543 3800 1529 1786}
+
+do_execsql_test 1.16.1 {
+  SELECT a, b, sum(c) OVER (ORDER BY a  GROUPS BETWEEN 0 FOLLOWING         AND 0 FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 4685   AA aa 4685   AA aa 4685   AA aa 4685   AA bb 4685   AA bb 4685
+  AA bb 4685   AA bb 4685   BB aa 7340   BB aa 7340   BB aa 7340   BB aa 7340
+  BB aa 7340   BB aa 7340   BB bb 7340   BB bb 7340   BB bb 7340   BB bb 7340
+  BB bb 7340   BB bb 7340   CC aa 3122   CC aa 3122   CC aa 3122   CC aa 3122
+  CC bb 3122   CC bb 3122   DD aa 4032   DD aa 4032   DD aa 4032   DD bb 4032
+  DD bb 4032   DD bb 4032   DD bb 4032   EE aa 2539   EE aa 2539   EE bb 2539
+  EE bb 2539   EE bb 2539   FF aa 5668   FF aa 5668   FF aa 5668   FF aa 5668
+  FF bb 5668   FF bb 5668   FF bb 5668   FF bb 5668   FF bb 5668   FF bb 5668
+  GG aa 4468   GG aa 4468   GG aa 4468   GG aa 4468   GG bb 4468   GG bb 4468
+  GG bb 4468   GG bb 4468   HH aa 5443   HH aa 5443   HH aa 5443   HH bb 5443
+  HH bb 5443   HH bb 5443   HH bb 5443   HH bb 5443   HH bb 5443   II aa 3640
+  II aa 3640   II bb 3640   II bb 3640   II bb 3640   II bb 3640   II bb 3640
+  JJ aa 3800   JJ aa 3800   JJ aa 3800   JJ aa 3800   JJ bb 3800   JJ bb 3800
+  JJ bb 3800   JJ bb 3800}
+
+do_execsql_test 1.16.2 {
+  SELECT a, b, sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN 0 FOLLOWING         AND 0 FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 2307   AA aa 2307   AA aa 2307   AA aa 2307   AA bb 2378   AA bb 2378
+  AA bb 2378   AA bb 2378   BB aa 2873   BB aa 2873   BB aa 2873   BB aa 2873
+  BB aa 2873   BB aa 2873   BB bb 4467   BB bb 4467   BB bb 4467   BB bb 4467
+  BB bb 4467   BB bb 4467   CC aa 1954   CC aa 1954   CC aa 1954   CC aa 1954
+  CC bb 1168   CC bb 1168   DD aa 1325   DD aa 1325   DD aa 1325   DD bb 2707
+  DD bb 2707   DD bb 2707   DD bb 2707   EE aa 890   EE aa 890   EE bb 1649
+  EE bb 1649   EE bb 1649   FF aa 2163   FF aa 2163   FF aa 2163   FF aa 2163
+  FF bb 3505   FF bb 3505   FF bb 3505   FF bb 3505   FF bb 3505   FF bb 3505
+  GG aa 1597   GG aa 1597   GG aa 1597   GG aa 1597   GG bb 2871   GG bb 2871
+  GG bb 2871   GG bb 2871   HH aa 2249   HH aa 2249   HH aa 2249   HH bb 3194
+  HH bb 3194   HH bb 3194   HH bb 3194   HH bb 3194   HH bb 3194   II aa 1050
+  II aa 1050   II bb 2590   II bb 2590   II bb 2590   II bb 2590   II bb 2590
+  JJ aa 2014   JJ aa 2014   JJ aa 2014   JJ aa 2014   JJ bb 1786   JJ bb 1786
+  JJ bb 1786   JJ bb 1786}
+
+do_execsql_test 1.16.3 {
+  SELECT a, b, rank() OVER (ORDER BY a  GROUPS BETWEEN 0 FOLLOWING         AND 0 FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 1   AA aa 1   AA aa 1   AA aa 1   AA bb 1   AA bb 1   AA bb 1
+  AA bb 1   BB aa 9   BB aa 9   BB aa 9   BB aa 9   BB aa 9   BB aa 9
+  BB bb 9   BB bb 9   BB bb 9   BB bb 9   BB bb 9   BB bb 9   CC aa 21
+  CC aa 21   CC aa 21   CC aa 21   CC bb 21   CC bb 21   DD aa 27   DD aa 27
+  DD aa 27   DD bb 27   DD bb 27   DD bb 27   DD bb 27   EE aa 34   EE aa 34
+  EE bb 34   EE bb 34   EE bb 34   FF aa 39   FF aa 39   FF aa 39   FF aa 39
+  FF bb 39   FF bb 39   FF bb 39   FF bb 39   FF bb 39   FF bb 39   GG aa 49
+  GG aa 49   GG aa 49   GG aa 49   GG bb 49   GG bb 49   GG bb 49   GG bb 49
+  HH aa 57   HH aa 57   HH aa 57   HH bb 57   HH bb 57   HH bb 57   HH bb 57
+  HH bb 57   HH bb 57   II aa 66   II aa 66   II bb 66   II bb 66   II bb 66
+  II bb 66   II bb 66   JJ aa 73   JJ aa 73   JJ aa 73   JJ aa 73   JJ bb 73
+  JJ bb 73   JJ bb 73   JJ bb 73}
+
+do_execsql_test 1.16.4 {
+  SELECT a, b, max(c) OVER (ORDER BY a,b  GROUPS BETWEEN 0 FOLLOWING         AND 0 FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 934   AA aa 934   AA aa 934   AA aa 934   AA bb 870   AA bb 870
+  AA bb 870   AA bb 870   BB aa 762   BB aa 762   BB aa 762   BB aa 762
+  BB aa 762   BB aa 762   BB bb 840   BB bb 840   BB bb 840   BB bb 840
+  BB bb 840   BB bb 840   CC aa 759   CC aa 759   CC aa 759   CC aa 759
+  CC bb 822   CC bb 822   DD aa 845   DD aa 845   DD aa 845   DD bb 959
+  DD bb 959   DD bb 959   DD bb 959   EE aa 777   EE aa 777   EE bb 768
+  EE bb 768   EE bb 768   FF aa 670   FF aa 670   FF aa 670   FF aa 670
+  FF bb 938   FF bb 938   FF bb 938   FF bb 938   FF bb 938   FF bb 938
+  GG aa 634   GG aa 634   GG aa 634   GG aa 634   GG bb 938   GG bb 938
+  GG bb 938   GG bb 938   HH aa 979   HH aa 979   HH aa 979   HH bb 963
+  HH bb 963   HH bb 963   HH bb 963   HH bb 963   HH bb 963   II aa 652
+  II aa 652   II bb 805   II bb 805   II bb 805   II bb 805   II bb 805
+  JJ aa 899   JJ aa 899   JJ aa 899   JJ aa 899   JJ bb 839   JJ bb 839
+  JJ bb 839   JJ bb 839}
+
+do_execsql_test 1.16.5 {
+  SELECT a, b, min(c) OVER (ORDER BY a,b  GROUPS BETWEEN 0 FOLLOWING         AND 0 FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 223   AA aa 223   AA aa 223   AA aa 223   AA bb 309   AA bb 309
+  AA bb 309   AA bb 309   BB aa 247   BB aa 247   BB aa 247   BB aa 247
+  BB aa 247   BB aa 247   BB bb 633   BB bb 633   BB bb 633   BB bb 633
+  BB bb 633   BB bb 633   CC aa 158   CC aa 158   CC aa 158   CC aa 158
+  CC bb 346   CC bb 346   DD aa 224   DD aa 224   DD aa 224   DD bb 238
+  DD bb 238   DD bb 238   DD bb 238   EE aa 113   EE aa 113   EE bb 252
+  EE bb 252   EE bb 252   FF aa 208   FF aa 208   FF aa 208   FF aa 208
+  FF bb 102   FF bb 102   FF bb 102   FF bb 102   FF bb 102   FF bb 102
+  GG aa 148   GG aa 148   GG aa 148   GG aa 148   GG bb 160   GG bb 160
+  GG bb 160   GG bb 160   HH aa 480   HH aa 480   HH aa 480   HH bb 133
+  HH bb 133   HH bb 133   HH bb 133   HH bb 133   HH bb 133   II aa 398
+  II aa 398   II bb 250   II bb 250   II bb 250   II bb 250   II bb 250
+  JJ aa 113   JJ aa 113   JJ aa 113   JJ aa 113   JJ bb 257   JJ bb 257
+  JJ bb 257   JJ bb 257}
+
+do_execsql_test 1.16.6 {
+  SELECT a, b, sum(c) OVER (ORDER BY a  GROUPS BETWEEN 0 FOLLOWING         AND 0 FOLLOWING  EXCLUDE CURRENT ROW) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 3751   AA aa 3774   AA aa 4446   AA aa 4462   AA bb 3815   AA bb 4058
+  AA bb 4113   AA bb 4376   BB aa 6578   BB aa 6680   BB aa 6928   BB aa 6941
+  BB aa 6947   BB aa 7093   BB bb 6500   BB bb 6548   BB bb 6554   BB bb 6629
+  BB bb 6635   BB bb 6707   CC aa 2363   CC aa 2515   CC aa 2692   CC aa 2964
+  CC bb 2300   CC bb 2776   DD aa 3187   DD aa 3776   DD aa 3808   DD bb 3073
+  DD bb 3238   DD bb 3316   DD bb 3794   EE aa 1762   EE aa 2426   EE bb 1771
+  EE bb 1910   EE bb 2287   FF aa 4998   FF aa 5001   FF aa 5050   FF aa 5460
+  FF bb 4730   FF bb 4798   FF bb 4942   FF bb 5094   FF bb 5373   FF bb 5566
+  GG aa 3834   GG aa 3988   GG aa 4133   GG aa 4320   GG bb 3530   GG bb 3539
+  GG bb 3624   GG bb 4308   HH aa 4464   HH aa 4653   HH aa 4963   HH bb 4480
+  HH bb 4713   HH bb 4760   HH bb 5088   HH bb 5113   HH bb 5310   II aa 2988
+  II aa 3242   II bb 2835   II bb 2969   II bb 3197   II bb 3219   II bb 3390
+  JJ aa 2901   JJ aa 3032   JJ aa 3566   JJ aa 3687   JJ bb 2961   JJ bb 3446
+  JJ bb 3464   JJ bb 3543}
+
+do_execsql_test 1.16.7 {
+  SELECT a, b, sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN 0 FOLLOWING         AND 0 FOLLOWING  EXCLUDE CURRENT ROW) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 1373   AA aa 1396   AA aa 2068   AA aa 2084   AA bb 1508   AA bb 1751
+  AA bb 1806   AA bb 2069   BB aa 2111   BB aa 2213   BB aa 2461   BB aa 2474
+  BB aa 2480   BB aa 2626   BB bb 3627   BB bb 3675   BB bb 3681   BB bb 3756
+  BB bb 3762   BB bb 3834   CC aa 1195   CC aa 1347   CC aa 1524   CC aa 1796
+  CC bb 346   CC bb 822   DD aa 480   DD aa 1069   DD aa 1101   DD bb 1748
+  DD bb 1913   DD bb 1991   DD bb 2469   EE aa 113   EE aa 777   EE bb 881
+  EE bb 1020   EE bb 1397   FF aa 1493   FF aa 1496   FF aa 1545   FF aa 1955
+  FF bb 2567   FF bb 2635   FF bb 2779   FF bb 2931   FF bb 3210   FF bb 3403
+  GG aa 963   GG aa 1117   GG aa 1262   GG aa 1449   GG bb 1933   GG bb 1942
+  GG bb 2027   GG bb 2711   HH aa 1270   HH aa 1459   HH aa 1769   HH bb 2231
+  HH bb 2464   HH bb 2511   HH bb 2839   HH bb 2864   HH bb 3061   II aa 398
+  II aa 652   II bb 1785   II bb 1919   II bb 2147   II bb 2169   II bb 2340
+  JJ aa 1115   JJ aa 1246   JJ aa 1780   JJ aa 1901   JJ bb 947   JJ bb 1432
+  JJ bb 1450   JJ bb 1529}
+
+do_execsql_test 1.16.8 {
+  SELECT a, b, 
+      sum(c) OVER (ORDER BY a  GROUPS BETWEEN 0 FOLLOWING         AND 0 FOLLOWING  EXCLUDE CURRENT ROW),
+      sum(c) OVER (ORDER BY a  GROUPS BETWEEN 0 FOLLOWING         AND 0 FOLLOWING ),
+      sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN 0 FOLLOWING         AND 0 FOLLOWING  EXCLUDE CURRENT ROW),
+      sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN 0 FOLLOWING         AND 0 FOLLOWING )
+    FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 3751 4685 1373 2307   AA aa 3774 4685 1396 2307
+  AA aa 4446 4685 2068 2307   AA aa 4462 4685 2084 2307
+  AA bb 3815 4685 1508 2378   AA bb 4058 4685 1751 2378
+  AA bb 4113 4685 1806 2378   AA bb 4376 4685 2069 2378
+  BB aa 6578 7340 2111 2873   BB aa 6680 7340 2213 2873
+  BB aa 6928 7340 2461 2873   BB aa 6941 7340 2474 2873
+  BB aa 6947 7340 2480 2873   BB aa 7093 7340 2626 2873
+  BB bb 6500 7340 3627 4467   BB bb 6548 7340 3675 4467
+  BB bb 6554 7340 3681 4467   BB bb 6629 7340 3756 4467
+  BB bb 6635 7340 3762 4467   BB bb 6707 7340 3834 4467
+  CC aa 2363 3122 1195 1954   CC aa 2515 3122 1347 1954
+  CC aa 2692 3122 1524 1954   CC aa 2964 3122 1796 1954
+  CC bb 2300 3122 346 1168   CC bb 2776 3122 822 1168
+  DD aa 3187 4032 480 1325   DD aa 3776 4032 1069 1325
+  DD aa 3808 4032 1101 1325   DD bb 3073 4032 1748 2707
+  DD bb 3238 4032 1913 2707   DD bb 3316 4032 1991 2707
+  DD bb 3794 4032 2469 2707   EE aa 1762 2539 113 890
+  EE aa 2426 2539 777 890   EE bb 1771 2539 881 1649
+  EE bb 1910 2539 1020 1649   EE bb 2287 2539 1397 1649
+  FF aa 4998 5668 1493 2163   FF aa 5001 5668 1496 2163
+  FF aa 5050 5668 1545 2163   FF aa 5460 5668 1955 2163
+  FF bb 4730 5668 2567 3505   FF bb 4798 5668 2635 3505
+  FF bb 4942 5668 2779 3505   FF bb 5094 5668 2931 3505
+  FF bb 5373 5668 3210 3505   FF bb 5566 5668 3403 3505
+  GG aa 3834 4468 963 1597   GG aa 3988 4468 1117 1597
+  GG aa 4133 4468 1262 1597   GG aa 4320 4468 1449 1597
+  GG bb 3530 4468 1933 2871   GG bb 3539 4468 1942 2871
+  GG bb 3624 4468 2027 2871   GG bb 4308 4468 2711 2871
+  HH aa 4464 5443 1270 2249   HH aa 4653 5443 1459 2249
+  HH aa 4963 5443 1769 2249   HH bb 4480 5443 2231 3194
+  HH bb 4713 5443 2464 3194   HH bb 4760 5443 2511 3194
+  HH bb 5088 5443 2839 3194   HH bb 5113 5443 2864 3194
+  HH bb 5310 5443 3061 3194   II aa 2988 3640 398 1050
+  II aa 3242 3640 652 1050   II bb 2835 3640 1785 2590
+  II bb 2969 3640 1919 2590   II bb 3197 3640 2147 2590
+  II bb 3219 3640 2169 2590   II bb 3390 3640 2340 2590
+  JJ aa 2901 3800 1115 2014   JJ aa 3032 3800 1246 2014
+  JJ aa 3566 3800 1780 2014   JJ aa 3687 3800 1901 2014
+  JJ bb 2961 3800 947 1786   JJ bb 3446 3800 1432 1786
+  JJ bb 3464 3800 1450 1786   JJ bb 3543 3800 1529 1786}
+
+do_execsql_test 1.17.1 {
+  SELECT a, b, sum(c) OVER (ORDER BY a  GROUPS BETWEEN 1 FOLLOWING         AND 0 FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa {}   AA aa {}   AA aa {}   AA aa {}   AA bb {}   AA bb {}   AA bb {}
+  AA bb {}   BB aa {}   BB aa {}   BB aa {}   BB aa {}   BB aa {}   BB aa {}
+  BB bb {}   BB bb {}   BB bb {}   BB bb {}   BB bb {}   BB bb {}   CC aa {}
+  CC aa {}   CC aa {}   CC aa {}   CC bb {}   CC bb {}   DD aa {}   DD aa {}
+  DD aa {}   DD bb {}   DD bb {}   DD bb {}   DD bb {}   EE aa {}   EE aa {}
+  EE bb {}   EE bb {}   EE bb {}   FF aa {}   FF aa {}   FF aa {}   FF aa {}
+  FF bb {}   FF bb {}   FF bb {}   FF bb {}   FF bb {}   FF bb {}   GG aa {}
+  GG aa {}   GG aa {}   GG aa {}   GG bb {}   GG bb {}   GG bb {}   GG bb {}
+  HH aa {}   HH aa {}   HH aa {}   HH bb {}   HH bb {}   HH bb {}   HH bb {}
+  HH bb {}   HH bb {}   II aa {}   II aa {}   II bb {}   II bb {}   II bb {}
+  II bb {}   II bb {}   JJ aa {}   JJ aa {}   JJ aa {}   JJ aa {}   JJ bb {}
+  JJ bb {}   JJ bb {}   JJ bb {}}
+
+do_execsql_test 1.17.2 {
+  SELECT a, b, sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN 1 FOLLOWING         AND 0 FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa {}   AA aa {}   AA aa {}   AA aa {}   AA bb {}   AA bb {}   AA bb {}
+  AA bb {}   BB aa {}   BB aa {}   BB aa {}   BB aa {}   BB aa {}   BB aa {}
+  BB bb {}   BB bb {}   BB bb {}   BB bb {}   BB bb {}   BB bb {}   CC aa {}
+  CC aa {}   CC aa {}   CC aa {}   CC bb {}   CC bb {}   DD aa {}   DD aa {}
+  DD aa {}   DD bb {}   DD bb {}   DD bb {}   DD bb {}   EE aa {}   EE aa {}
+  EE bb {}   EE bb {}   EE bb {}   FF aa {}   FF aa {}   FF aa {}   FF aa {}
+  FF bb {}   FF bb {}   FF bb {}   FF bb {}   FF bb {}   FF bb {}   GG aa {}
+  GG aa {}   GG aa {}   GG aa {}   GG bb {}   GG bb {}   GG bb {}   GG bb {}
+  HH aa {}   HH aa {}   HH aa {}   HH bb {}   HH bb {}   HH bb {}   HH bb {}
+  HH bb {}   HH bb {}   II aa {}   II aa {}   II bb {}   II bb {}   II bb {}
+  II bb {}   II bb {}   JJ aa {}   JJ aa {}   JJ aa {}   JJ aa {}   JJ bb {}
+  JJ bb {}   JJ bb {}   JJ bb {}}
+
+do_execsql_test 1.17.3 {
+  SELECT a, b, rank() OVER (ORDER BY a  GROUPS BETWEEN 1 FOLLOWING         AND 0 FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 1   AA aa 1   AA aa 1   AA aa 1   AA bb 1   AA bb 1   AA bb 1
+  AA bb 1   BB aa 9   BB aa 9   BB aa 9   BB aa 9   BB aa 9   BB aa 9
+  BB bb 9   BB bb 9   BB bb 9   BB bb 9   BB bb 9   BB bb 9   CC aa 21
+  CC aa 21   CC aa 21   CC aa 21   CC bb 21   CC bb 21   DD aa 27   DD aa 27
+  DD aa 27   DD bb 27   DD bb 27   DD bb 27   DD bb 27   EE aa 34   EE aa 34
+  EE bb 34   EE bb 34   EE bb 34   FF aa 39   FF aa 39   FF aa 39   FF aa 39
+  FF bb 39   FF bb 39   FF bb 39   FF bb 39   FF bb 39   FF bb 39   GG aa 49
+  GG aa 49   GG aa 49   GG aa 49   GG bb 49   GG bb 49   GG bb 49   GG bb 49
+  HH aa 57   HH aa 57   HH aa 57   HH bb 57   HH bb 57   HH bb 57   HH bb 57
+  HH bb 57   HH bb 57   II aa 66   II aa 66   II bb 66   II bb 66   II bb 66
+  II bb 66   II bb 66   JJ aa 73   JJ aa 73   JJ aa 73   JJ aa 73   JJ bb 73
+  JJ bb 73   JJ bb 73   JJ bb 73}
+
+do_execsql_test 1.17.4 {
+  SELECT a, b, max(c) OVER (ORDER BY a,b  GROUPS BETWEEN 1 FOLLOWING         AND 0 FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa {}   AA aa {}   AA aa {}   AA aa {}   AA bb {}   AA bb {}   AA bb {}
+  AA bb {}   BB aa {}   BB aa {}   BB aa {}   BB aa {}   BB aa {}   BB aa {}
+  BB bb {}   BB bb {}   BB bb {}   BB bb {}   BB bb {}   BB bb {}   CC aa {}
+  CC aa {}   CC aa {}   CC aa {}   CC bb {}   CC bb {}   DD aa {}   DD aa {}
+  DD aa {}   DD bb {}   DD bb {}   DD bb {}   DD bb {}   EE aa {}   EE aa {}
+  EE bb {}   EE bb {}   EE bb {}   FF aa {}   FF aa {}   FF aa {}   FF aa {}
+  FF bb {}   FF bb {}   FF bb {}   FF bb {}   FF bb {}   FF bb {}   GG aa {}
+  GG aa {}   GG aa {}   GG aa {}   GG bb {}   GG bb {}   GG bb {}   GG bb {}
+  HH aa {}   HH aa {}   HH aa {}   HH bb {}   HH bb {}   HH bb {}   HH bb {}
+  HH bb {}   HH bb {}   II aa {}   II aa {}   II bb {}   II bb {}   II bb {}
+  II bb {}   II bb {}   JJ aa {}   JJ aa {}   JJ aa {}   JJ aa {}   JJ bb {}
+  JJ bb {}   JJ bb {}   JJ bb {}}
+
+do_execsql_test 1.17.5 {
+  SELECT a, b, min(c) OVER (ORDER BY a,b  GROUPS BETWEEN 1 FOLLOWING         AND 0 FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa {}   AA aa {}   AA aa {}   AA aa {}   AA bb {}   AA bb {}   AA bb {}
+  AA bb {}   BB aa {}   BB aa {}   BB aa {}   BB aa {}   BB aa {}   BB aa {}
+  BB bb {}   BB bb {}   BB bb {}   BB bb {}   BB bb {}   BB bb {}   CC aa {}
+  CC aa {}   CC aa {}   CC aa {}   CC bb {}   CC bb {}   DD aa {}   DD aa {}
+  DD aa {}   DD bb {}   DD bb {}   DD bb {}   DD bb {}   EE aa {}   EE aa {}
+  EE bb {}   EE bb {}   EE bb {}   FF aa {}   FF aa {}   FF aa {}   FF aa {}
+  FF bb {}   FF bb {}   FF bb {}   FF bb {}   FF bb {}   FF bb {}   GG aa {}
+  GG aa {}   GG aa {}   GG aa {}   GG bb {}   GG bb {}   GG bb {}   GG bb {}
+  HH aa {}   HH aa {}   HH aa {}   HH bb {}   HH bb {}   HH bb {}   HH bb {}
+  HH bb {}   HH bb {}   II aa {}   II aa {}   II bb {}   II bb {}   II bb {}
+  II bb {}   II bb {}   JJ aa {}   JJ aa {}   JJ aa {}   JJ aa {}   JJ bb {}
+  JJ bb {}   JJ bb {}   JJ bb {}}
+
+do_execsql_test 1.17.6 {
+  SELECT a, b, sum(c) OVER (ORDER BY a  GROUPS BETWEEN 1 FOLLOWING         AND 0 FOLLOWING  EXCLUDE CURRENT ROW) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa {}   AA aa {}   AA aa {}   AA aa {}   AA bb {}   AA bb {}   AA bb {}
+  AA bb {}   BB aa {}   BB aa {}   BB aa {}   BB aa {}   BB aa {}   BB aa {}
+  BB bb {}   BB bb {}   BB bb {}   BB bb {}   BB bb {}   BB bb {}   CC aa {}
+  CC aa {}   CC aa {}   CC aa {}   CC bb {}   CC bb {}   DD aa {}   DD aa {}
+  DD aa {}   DD bb {}   DD bb {}   DD bb {}   DD bb {}   EE aa {}   EE aa {}
+  EE bb {}   EE bb {}   EE bb {}   FF aa {}   FF aa {}   FF aa {}   FF aa {}
+  FF bb {}   FF bb {}   FF bb {}   FF bb {}   FF bb {}   FF bb {}   GG aa {}
+  GG aa {}   GG aa {}   GG aa {}   GG bb {}   GG bb {}   GG bb {}   GG bb {}
+  HH aa {}   HH aa {}   HH aa {}   HH bb {}   HH bb {}   HH bb {}   HH bb {}
+  HH bb {}   HH bb {}   II aa {}   II aa {}   II bb {}   II bb {}   II bb {}
+  II bb {}   II bb {}   JJ aa {}   JJ aa {}   JJ aa {}   JJ aa {}   JJ bb {}
+  JJ bb {}   JJ bb {}   JJ bb {}}
+
+do_execsql_test 1.17.7 {
+  SELECT a, b, sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN 1 FOLLOWING         AND 0 FOLLOWING  EXCLUDE CURRENT ROW) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa {}   AA aa {}   AA aa {}   AA aa {}   AA bb {}   AA bb {}   AA bb {}
+  AA bb {}   BB aa {}   BB aa {}   BB aa {}   BB aa {}   BB aa {}   BB aa {}
+  BB bb {}   BB bb {}   BB bb {}   BB bb {}   BB bb {}   BB bb {}   CC aa {}
+  CC aa {}   CC aa {}   CC aa {}   CC bb {}   CC bb {}   DD aa {}   DD aa {}
+  DD aa {}   DD bb {}   DD bb {}   DD bb {}   DD bb {}   EE aa {}   EE aa {}
+  EE bb {}   EE bb {}   EE bb {}   FF aa {}   FF aa {}   FF aa {}   FF aa {}
+  FF bb {}   FF bb {}   FF bb {}   FF bb {}   FF bb {}   FF bb {}   GG aa {}
+  GG aa {}   GG aa {}   GG aa {}   GG bb {}   GG bb {}   GG bb {}   GG bb {}
+  HH aa {}   HH aa {}   HH aa {}   HH bb {}   HH bb {}   HH bb {}   HH bb {}
+  HH bb {}   HH bb {}   II aa {}   II aa {}   II bb {}   II bb {}   II bb {}
+  II bb {}   II bb {}   JJ aa {}   JJ aa {}   JJ aa {}   JJ aa {}   JJ bb {}
+  JJ bb {}   JJ bb {}   JJ bb {}}
+
+do_execsql_test 1.17.8 {
+  SELECT a, b, 
+      sum(c) OVER (ORDER BY a  GROUPS BETWEEN 1 FOLLOWING         AND 0 FOLLOWING  EXCLUDE CURRENT ROW),
+      sum(c) OVER (ORDER BY a  GROUPS BETWEEN 1 FOLLOWING         AND 0 FOLLOWING ),
+      sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN 1 FOLLOWING         AND 0 FOLLOWING  EXCLUDE CURRENT ROW),
+      sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN 1 FOLLOWING         AND 0 FOLLOWING )
+    FROM t3 ORDER BY 1, 2, 3;
+} {AA aa {} {} {} {}   AA aa {} {} {} {}   AA aa {} {} {} {}
+  AA aa {} {} {} {}   AA bb {} {} {} {}   AA bb {} {} {} {}
+  AA bb {} {} {} {}   AA bb {} {} {} {}   BB aa {} {} {} {}
+  BB aa {} {} {} {}   BB aa {} {} {} {}   BB aa {} {} {} {}
+  BB aa {} {} {} {}   BB aa {} {} {} {}   BB bb {} {} {} {}
+  BB bb {} {} {} {}   BB bb {} {} {} {}   BB bb {} {} {} {}
+  BB bb {} {} {} {}   BB bb {} {} {} {}   CC aa {} {} {} {}
+  CC aa {} {} {} {}   CC aa {} {} {} {}   CC aa {} {} {} {}
+  CC bb {} {} {} {}   CC bb {} {} {} {}   DD aa {} {} {} {}
+  DD aa {} {} {} {}   DD aa {} {} {} {}   DD bb {} {} {} {}
+  DD bb {} {} {} {}   DD bb {} {} {} {}   DD bb {} {} {} {}
+  EE aa {} {} {} {}   EE aa {} {} {} {}   EE bb {} {} {} {}
+  EE bb {} {} {} {}   EE bb {} {} {} {}   FF aa {} {} {} {}
+  FF aa {} {} {} {}   FF aa {} {} {} {}   FF aa {} {} {} {}
+  FF bb {} {} {} {}   FF bb {} {} {} {}   FF bb {} {} {} {}
+  FF bb {} {} {} {}   FF bb {} {} {} {}   FF bb {} {} {} {}
+  GG aa {} {} {} {}   GG aa {} {} {} {}   GG aa {} {} {} {}
+  GG aa {} {} {} {}   GG bb {} {} {} {}   GG bb {} {} {} {}
+  GG bb {} {} {} {}   GG bb {} {} {} {}   HH aa {} {} {} {}
+  HH aa {} {} {} {}   HH aa {} {} {} {}   HH bb {} {} {} {}
+  HH bb {} {} {} {}   HH bb {} {} {} {}   HH bb {} {} {} {}
+  HH bb {} {} {} {}   HH bb {} {} {} {}   II aa {} {} {} {}
+  II aa {} {} {} {}   II bb {} {} {} {}   II bb {} {} {} {}
+  II bb {} {} {} {}   II bb {} {} {} {}   II bb {} {} {} {}
+  JJ aa {} {} {} {}   JJ aa {} {} {} {}   JJ aa {} {} {} {}
+  JJ aa {} {} {} {}   JJ bb {} {} {} {}   JJ bb {} {} {} {}
+  JJ bb {} {} {} {}   JJ bb {} {} {} {}}
+
+do_execsql_test 1.18.1 {
+  SELECT a, b, sum(c) OVER (ORDER BY a  GROUPS BETWEEN 1 FOLLOWING         AND 5 FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 22701   AA aa 22701   AA aa 22701   AA aa 22701   AA bb 22701
+  AA bb 22701   AA bb 22701   AA bb 22701   BB aa 19829   BB aa 19829
+  BB aa 19829   BB aa 19829   BB aa 19829   BB aa 19829   BB bb 19829
+  BB bb 19829   BB bb 19829   BB bb 19829   BB bb 19829   BB bb 19829
+  CC aa 22150   CC aa 22150   CC aa 22150   CC aa 22150   CC bb 22150
+  CC bb 22150   DD aa 21758   DD aa 21758   DD aa 21758   DD bb 21758
+  DD bb 21758   DD bb 21758   DD bb 21758   EE aa 23019   EE aa 23019
+  EE bb 23019   EE bb 23019   EE bb 23019   FF aa 17351   FF aa 17351
+  FF aa 17351   FF aa 17351   FF bb 17351   FF bb 17351   FF bb 17351
+  FF bb 17351   FF bb 17351   FF bb 17351   GG aa 12883   GG aa 12883
+  GG aa 12883   GG aa 12883   GG bb 12883   GG bb 12883   GG bb 12883
+  GG bb 12883   HH aa 7440   HH aa 7440   HH aa 7440   HH bb 7440
+  HH bb 7440   HH bb 7440   HH bb 7440   HH bb 7440   HH bb 7440   II aa 3800
+  II aa 3800   II bb 3800   II bb 3800   II bb 3800   II bb 3800   II bb 3800
+  JJ aa {}   JJ aa {}   JJ aa {}   JJ aa {}   JJ bb {}   JJ bb {}   JJ bb {}
+  JJ bb {}}
+
+do_execsql_test 1.18.2 {
+  SELECT a, b, sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN 1 FOLLOWING         AND 5 FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 12840   AA aa 12840   AA aa 12840   AA aa 12840   AA bb 11787
+  AA bb 11787   AA bb 11787   AA bb 11787   BB aa 11621   BB aa 11621
+  BB aa 11621   BB aa 11621   BB aa 11621   BB aa 11621   BB bb 8044
+  BB bb 8044   BB bb 8044   BB bb 8044   BB bb 8044   BB bb 8044   CC aa 7739
+  CC aa 7739   CC aa 7739   CC aa 7739   CC bb 8734   CC bb 8734
+  DD aa 10914   DD aa 10914   DD aa 10914   DD bb 9804   DD bb 9804
+  DD bb 9804   DD bb 9804   EE aa 11785   EE aa 11785   EE bb 12385
+  EE bb 12385   EE bb 12385   FF aa 13416   FF aa 13416   FF aa 13416
+  FF aa 13416   FF bb 10961   FF bb 10961   FF bb 10961   FF bb 10961
+  FF bb 10961   FF bb 10961   GG aa 11954   GG aa 11954   GG aa 11954
+  GG aa 11954   GG bb 11097   GG bb 11097   GG bb 11097   GG bb 11097
+  HH aa 10634   HH aa 10634   HH aa 10634   HH bb 7440   HH bb 7440
+  HH bb 7440   HH bb 7440   HH bb 7440   HH bb 7440   II aa 6390   II aa 6390
+  II bb 3800   II bb 3800   II bb 3800   II bb 3800   II bb 3800   JJ aa 1786
+  JJ aa 1786   JJ aa 1786   JJ aa 1786   JJ bb {}   JJ bb {}   JJ bb {}
+  JJ bb {}}
+
+do_execsql_test 1.18.3 {
+  SELECT a, b, rank() OVER (ORDER BY a  GROUPS BETWEEN 1 FOLLOWING         AND 5 FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 1   AA aa 1   AA aa 1   AA aa 1   AA bb 1   AA bb 1   AA bb 1
+  AA bb 1   BB aa 9   BB aa 9   BB aa 9   BB aa 9   BB aa 9   BB aa 9
+  BB bb 9   BB bb 9   BB bb 9   BB bb 9   BB bb 9   BB bb 9   CC aa 21
+  CC aa 21   CC aa 21   CC aa 21   CC bb 21   CC bb 21   DD aa 27   DD aa 27
+  DD aa 27   DD bb 27   DD bb 27   DD bb 27   DD bb 27   EE aa 34   EE aa 34
+  EE bb 34   EE bb 34   EE bb 34   FF aa 39   FF aa 39   FF aa 39   FF aa 39
+  FF bb 39   FF bb 39   FF bb 39   FF bb 39   FF bb 39   FF bb 39   GG aa 49
+  GG aa 49   GG aa 49   GG aa 49   GG bb 49   GG bb 49   GG bb 49   GG bb 49
+  HH aa 57   HH aa 57   HH aa 57   HH bb 57   HH bb 57   HH bb 57   HH bb 57
+  HH bb 57   HH bb 57   II aa 66   II aa 66   II bb 66   II bb 66   II bb 66
+  II bb 66   II bb 66   JJ aa 73   JJ aa 73   JJ aa 73   JJ aa 73   JJ bb 73
+  JJ bb 73   JJ bb 73   JJ bb 73}
+
+do_execsql_test 1.18.4 {
+  SELECT a, b, max(c) OVER (ORDER BY a,b  GROUPS BETWEEN 1 FOLLOWING         AND 5 FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 870   AA aa 870   AA aa 870   AA aa 870   AA bb 845   AA bb 845
+  AA bb 845   AA bb 845   BB aa 959   BB aa 959   BB aa 959   BB aa 959
+  BB aa 959   BB aa 959   BB bb 959   BB bb 959   BB bb 959   BB bb 959
+  BB bb 959   BB bb 959   CC aa 959   CC aa 959   CC aa 959   CC aa 959
+  CC bb 959   CC bb 959   DD aa 959   DD aa 959   DD aa 959   DD bb 938
+  DD bb 938   DD bb 938   DD bb 938   EE aa 938   EE aa 938   EE bb 979
+  EE bb 979   EE bb 979   FF aa 979   FF aa 979   FF aa 979   FF aa 979
+  FF bb 979   FF bb 979   FF bb 979   FF bb 979   FF bb 979   FF bb 979
+  GG aa 979   GG aa 979   GG aa 979   GG aa 979   GG bb 979   GG bb 979
+  GG bb 979   GG bb 979   HH aa 963   HH aa 963   HH aa 963   HH bb 899
+  HH bb 899   HH bb 899   HH bb 899   HH bb 899   HH bb 899   II aa 899
+  II aa 899   II bb 899   II bb 899   II bb 899   II bb 899   II bb 899
+  JJ aa 839   JJ aa 839   JJ aa 839   JJ aa 839   JJ bb {}   JJ bb {}
+  JJ bb {}   JJ bb {}}
+
+do_execsql_test 1.18.5 {
+  SELECT a, b, min(c) OVER (ORDER BY a,b  GROUPS BETWEEN 1 FOLLOWING         AND 5 FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 158   AA aa 158   AA aa 158   AA aa 158   AA bb 158   AA bb 158
+  AA bb 158   AA bb 158   BB aa 158   BB aa 158   BB aa 158   BB aa 158
+  BB aa 158   BB aa 158   BB bb 113   BB bb 113   BB bb 113   BB bb 113
+  BB bb 113   BB bb 113   CC aa 113   CC aa 113   CC aa 113   CC aa 113
+  CC bb 113   CC bb 113   DD aa 102   DD aa 102   DD aa 102   DD bb 102
+  DD bb 102   DD bb 102   DD bb 102   EE aa 102   EE aa 102   EE bb 102
+  EE bb 102   EE bb 102   FF aa 102   FF aa 102   FF aa 102   FF aa 102
+  FF bb 133   FF bb 133   FF bb 133   FF bb 133   FF bb 133   FF bb 133
+  GG aa 133   GG aa 133   GG aa 133   GG aa 133   GG bb 113   GG bb 113
+  GG bb 113   GG bb 113   HH aa 113   HH aa 113   HH aa 113   HH bb 113
+  HH bb 113   HH bb 113   HH bb 113   HH bb 113   HH bb 113   II aa 113
+  II aa 113   II bb 113   II bb 113   II bb 113   II bb 113   II bb 113
+  JJ aa 257   JJ aa 257   JJ aa 257   JJ aa 257   JJ bb {}   JJ bb {}
+  JJ bb {}   JJ bb {}}
+
+do_execsql_test 1.18.6 {
+  SELECT a, b, sum(c) OVER (ORDER BY a  GROUPS BETWEEN 1 FOLLOWING         AND 5 FOLLOWING  EXCLUDE CURRENT ROW) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 22701   AA aa 22701   AA aa 22701   AA aa 22701   AA bb 22701
+  AA bb 22701   AA bb 22701   AA bb 22701   BB aa 19829   BB aa 19829
+  BB aa 19829   BB aa 19829   BB aa 19829   BB aa 19829   BB bb 19829
+  BB bb 19829   BB bb 19829   BB bb 19829   BB bb 19829   BB bb 19829
+  CC aa 22150   CC aa 22150   CC aa 22150   CC aa 22150   CC bb 22150
+  CC bb 22150   DD aa 21758   DD aa 21758   DD aa 21758   DD bb 21758
+  DD bb 21758   DD bb 21758   DD bb 21758   EE aa 23019   EE aa 23019
+  EE bb 23019   EE bb 23019   EE bb 23019   FF aa 17351   FF aa 17351
+  FF aa 17351   FF aa 17351   FF bb 17351   FF bb 17351   FF bb 17351
+  FF bb 17351   FF bb 17351   FF bb 17351   GG aa 12883   GG aa 12883
+  GG aa 12883   GG aa 12883   GG bb 12883   GG bb 12883   GG bb 12883
+  GG bb 12883   HH aa 7440   HH aa 7440   HH aa 7440   HH bb 7440
+  HH bb 7440   HH bb 7440   HH bb 7440   HH bb 7440   HH bb 7440   II aa 3800
+  II aa 3800   II bb 3800   II bb 3800   II bb 3800   II bb 3800   II bb 3800
+  JJ aa {}   JJ aa {}   JJ aa {}   JJ aa {}   JJ bb {}   JJ bb {}   JJ bb {}
+  JJ bb {}}
+
+do_execsql_test 1.18.7 {
+  SELECT a, b, sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN 1 FOLLOWING         AND 5 FOLLOWING  EXCLUDE CURRENT ROW) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 12840   AA aa 12840   AA aa 12840   AA aa 12840   AA bb 11787
+  AA bb 11787   AA bb 11787   AA bb 11787   BB aa 11621   BB aa 11621
+  BB aa 11621   BB aa 11621   BB aa 11621   BB aa 11621   BB bb 8044
+  BB bb 8044   BB bb 8044   BB bb 8044   BB bb 8044   BB bb 8044   CC aa 7739
+  CC aa 7739   CC aa 7739   CC aa 7739   CC bb 8734   CC bb 8734
+  DD aa 10914   DD aa 10914   DD aa 10914   DD bb 9804   DD bb 9804
+  DD bb 9804   DD bb 9804   EE aa 11785   EE aa 11785   EE bb 12385
+  EE bb 12385   EE bb 12385   FF aa 13416   FF aa 13416   FF aa 13416
+  FF aa 13416   FF bb 10961   FF bb 10961   FF bb 10961   FF bb 10961
+  FF bb 10961   FF bb 10961   GG aa 11954   GG aa 11954   GG aa 11954
+  GG aa 11954   GG bb 11097   GG bb 11097   GG bb 11097   GG bb 11097
+  HH aa 10634   HH aa 10634   HH aa 10634   HH bb 7440   HH bb 7440
+  HH bb 7440   HH bb 7440   HH bb 7440   HH bb 7440   II aa 6390   II aa 6390
+  II bb 3800   II bb 3800   II bb 3800   II bb 3800   II bb 3800   JJ aa 1786
+  JJ aa 1786   JJ aa 1786   JJ aa 1786   JJ bb {}   JJ bb {}   JJ bb {}
+  JJ bb {}}
+
+do_execsql_test 1.18.8 {
+  SELECT a, b, 
+      sum(c) OVER (ORDER BY a  GROUPS BETWEEN 1 FOLLOWING         AND 5 FOLLOWING  EXCLUDE CURRENT ROW),
+      sum(c) OVER (ORDER BY a  GROUPS BETWEEN 1 FOLLOWING         AND 5 FOLLOWING ),
+      sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN 1 FOLLOWING         AND 5 FOLLOWING  EXCLUDE CURRENT ROW),
+      sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN 1 FOLLOWING         AND 5 FOLLOWING )
+    FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 22701 22701 12840 12840   AA aa 22701 22701 12840 12840
+  AA aa 22701 22701 12840 12840   AA aa 22701 22701 12840 12840
+  AA bb 22701 22701 11787 11787   AA bb 22701 22701 11787 11787
+  AA bb 22701 22701 11787 11787   AA bb 22701 22701 11787 11787
+  BB aa 19829 19829 11621 11621   BB aa 19829 19829 11621 11621
+  BB aa 19829 19829 11621 11621   BB aa 19829 19829 11621 11621
+  BB aa 19829 19829 11621 11621   BB aa 19829 19829 11621 11621
+  BB bb 19829 19829 8044 8044   BB bb 19829 19829 8044 8044
+  BB bb 19829 19829 8044 8044   BB bb 19829 19829 8044 8044
+  BB bb 19829 19829 8044 8044   BB bb 19829 19829 8044 8044
+  CC aa 22150 22150 7739 7739   CC aa 22150 22150 7739 7739
+  CC aa 22150 22150 7739 7739   CC aa 22150 22150 7739 7739
+  CC bb 22150 22150 8734 8734   CC bb 22150 22150 8734 8734
+  DD aa 21758 21758 10914 10914   DD aa 21758 21758 10914 10914
+  DD aa 21758 21758 10914 10914   DD bb 21758 21758 9804 9804
+  DD bb 21758 21758 9804 9804   DD bb 21758 21758 9804 9804
+  DD bb 21758 21758 9804 9804   EE aa 23019 23019 11785 11785
+  EE aa 23019 23019 11785 11785   EE bb 23019 23019 12385 12385
+  EE bb 23019 23019 12385 12385   EE bb 23019 23019 12385 12385
+  FF aa 17351 17351 13416 13416   FF aa 17351 17351 13416 13416
+  FF aa 17351 17351 13416 13416   FF aa 17351 17351 13416 13416
+  FF bb 17351 17351 10961 10961   FF bb 17351 17351 10961 10961
+  FF bb 17351 17351 10961 10961   FF bb 17351 17351 10961 10961
+  FF bb 17351 17351 10961 10961   FF bb 17351 17351 10961 10961
+  GG aa 12883 12883 11954 11954   GG aa 12883 12883 11954 11954
+  GG aa 12883 12883 11954 11954   GG aa 12883 12883 11954 11954
+  GG bb 12883 12883 11097 11097   GG bb 12883 12883 11097 11097
+  GG bb 12883 12883 11097 11097   GG bb 12883 12883 11097 11097
+  HH aa 7440 7440 10634 10634   HH aa 7440 7440 10634 10634
+  HH aa 7440 7440 10634 10634   HH bb 7440 7440 7440 7440
+  HH bb 7440 7440 7440 7440   HH bb 7440 7440 7440 7440
+  HH bb 7440 7440 7440 7440   HH bb 7440 7440 7440 7440
+  HH bb 7440 7440 7440 7440   II aa 3800 3800 6390 6390
+  II aa 3800 3800 6390 6390   II bb 3800 3800 3800 3800
+  II bb 3800 3800 3800 3800   II bb 3800 3800 3800 3800
+  II bb 3800 3800 3800 3800   II bb 3800 3800 3800 3800
+  JJ aa {} {} 1786 1786   JJ aa {} {} 1786 1786   JJ aa {} {} 1786 1786
+  JJ aa {} {} 1786 1786   JJ bb {} {} {} {}   JJ bb {} {} {} {}
+  JJ bb {} {} {} {}   JJ bb {} {} {} {}}
+
+do_execsql_test 1.19.1 {
+  SELECT a, b, sum(c) OVER (ORDER BY a  GROUPS BETWEEN 1 FOLLOWING         AND UNBOUNDED FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 40052   AA aa 40052   AA aa 40052   AA aa 40052   AA bb 40052
+  AA bb 40052   AA bb 40052   AA bb 40052   BB aa 32712   BB aa 32712
+  BB aa 32712   BB aa 32712   BB aa 32712   BB aa 32712   BB bb 32712
+  BB bb 32712   BB bb 32712   BB bb 32712   BB bb 32712   BB bb 32712
+  CC aa 29590   CC aa 29590   CC aa 29590   CC aa 29590   CC bb 29590
+  CC bb 29590   DD aa 25558   DD aa 25558   DD aa 25558   DD bb 25558
+  DD bb 25558   DD bb 25558   DD bb 25558   EE aa 23019   EE aa 23019
+  EE bb 23019   EE bb 23019   EE bb 23019   FF aa 17351   FF aa 17351
+  FF aa 17351   FF aa 17351   FF bb 17351   FF bb 17351   FF bb 17351
+  FF bb 17351   FF bb 17351   FF bb 17351   GG aa 12883   GG aa 12883
+  GG aa 12883   GG aa 12883   GG bb 12883   GG bb 12883   GG bb 12883
+  GG bb 12883   HH aa 7440   HH aa 7440   HH aa 7440   HH bb 7440
+  HH bb 7440   HH bb 7440   HH bb 7440   HH bb 7440   HH bb 7440   II aa 3800
+  II aa 3800   II bb 3800   II bb 3800   II bb 3800   II bb 3800   II bb 3800
+  JJ aa {}   JJ aa {}   JJ aa {}   JJ aa {}   JJ bb {}   JJ bb {}   JJ bb {}
+  JJ bb {}}
+
+do_execsql_test 1.19.2 {
+  SELECT a, b, sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN 1 FOLLOWING         AND UNBOUNDED FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 42430   AA aa 42430   AA aa 42430   AA aa 42430   AA bb 40052
+  AA bb 40052   AA bb 40052   AA bb 40052   BB aa 37179   BB aa 37179
+  BB aa 37179   BB aa 37179   BB aa 37179   BB aa 37179   BB bb 32712
+  BB bb 32712   BB bb 32712   BB bb 32712   BB bb 32712   BB bb 32712
+  CC aa 30758   CC aa 30758   CC aa 30758   CC aa 30758   CC bb 29590
+  CC bb 29590   DD aa 28265   DD aa 28265   DD aa 28265   DD bb 25558
+  DD bb 25558   DD bb 25558   DD bb 25558   EE aa 24668   EE aa 24668
+  EE bb 23019   EE bb 23019   EE bb 23019   FF aa 20856   FF aa 20856
+  FF aa 20856   FF aa 20856   FF bb 17351   FF bb 17351   FF bb 17351
+  FF bb 17351   FF bb 17351   FF bb 17351   GG aa 15754   GG aa 15754
+  GG aa 15754   GG aa 15754   GG bb 12883   GG bb 12883   GG bb 12883
+  GG bb 12883   HH aa 10634   HH aa 10634   HH aa 10634   HH bb 7440
+  HH bb 7440   HH bb 7440   HH bb 7440   HH bb 7440   HH bb 7440   II aa 6390
+  II aa 6390   II bb 3800   II bb 3800   II bb 3800   II bb 3800   II bb 3800
+  JJ aa 1786   JJ aa 1786   JJ aa 1786   JJ aa 1786   JJ bb {}   JJ bb {}
+  JJ bb {}   JJ bb {}}
+
+do_execsql_test 1.19.3 {
+  SELECT a, b, rank() OVER (ORDER BY a  GROUPS BETWEEN 1 FOLLOWING         AND UNBOUNDED FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 1   AA aa 1   AA aa 1   AA aa 1   AA bb 1   AA bb 1   AA bb 1
+  AA bb 1   BB aa 9   BB aa 9   BB aa 9   BB aa 9   BB aa 9   BB aa 9
+  BB bb 9   BB bb 9   BB bb 9   BB bb 9   BB bb 9   BB bb 9   CC aa 21
+  CC aa 21   CC aa 21   CC aa 21   CC bb 21   CC bb 21   DD aa 27   DD aa 27
+  DD aa 27   DD bb 27   DD bb 27   DD bb 27   DD bb 27   EE aa 34   EE aa 34
+  EE bb 34   EE bb 34   EE bb 34   FF aa 39   FF aa 39   FF aa 39   FF aa 39
+  FF bb 39   FF bb 39   FF bb 39   FF bb 39   FF bb 39   FF bb 39   GG aa 49
+  GG aa 49   GG aa 49   GG aa 49   GG bb 49   GG bb 49   GG bb 49   GG bb 49
+  HH aa 57   HH aa 57   HH aa 57   HH bb 57   HH bb 57   HH bb 57   HH bb 57
+  HH bb 57   HH bb 57   II aa 66   II aa 66   II bb 66   II bb 66   II bb 66
+  II bb 66   II bb 66   JJ aa 73   JJ aa 73   JJ aa 73   JJ aa 73   JJ bb 73
+  JJ bb 73   JJ bb 73   JJ bb 73}
+
+do_execsql_test 1.19.4 {
+  SELECT a, b, max(c) OVER (ORDER BY a,b  GROUPS BETWEEN 1 FOLLOWING         AND UNBOUNDED FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 979   AA aa 979   AA aa 979   AA aa 979   AA bb 979   AA bb 979
+  AA bb 979   AA bb 979   BB aa 979   BB aa 979   BB aa 979   BB aa 979
+  BB aa 979   BB aa 979   BB bb 979   BB bb 979   BB bb 979   BB bb 979
+  BB bb 979   BB bb 979   CC aa 979   CC aa 979   CC aa 979   CC aa 979
+  CC bb 979   CC bb 979   DD aa 979   DD aa 979   DD aa 979   DD bb 979
+  DD bb 979   DD bb 979   DD bb 979   EE aa 979   EE aa 979   EE bb 979
+  EE bb 979   EE bb 979   FF aa 979   FF aa 979   FF aa 979   FF aa 979
+  FF bb 979   FF bb 979   FF bb 979   FF bb 979   FF bb 979   FF bb 979
+  GG aa 979   GG aa 979   GG aa 979   GG aa 979   GG bb 979   GG bb 979
+  GG bb 979   GG bb 979   HH aa 963   HH aa 963   HH aa 963   HH bb 899
+  HH bb 899   HH bb 899   HH bb 899   HH bb 899   HH bb 899   II aa 899
+  II aa 899   II bb 899   II bb 899   II bb 899   II bb 899   II bb 899
+  JJ aa 839   JJ aa 839   JJ aa 839   JJ aa 839   JJ bb {}   JJ bb {}
+  JJ bb {}   JJ bb {}}
+
+do_execsql_test 1.19.5 {
+  SELECT a, b, min(c) OVER (ORDER BY a,b  GROUPS BETWEEN 1 FOLLOWING         AND UNBOUNDED FOLLOWING ) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 102   AA aa 102   AA aa 102   AA aa 102   AA bb 102   AA bb 102
+  AA bb 102   AA bb 102   BB aa 102   BB aa 102   BB aa 102   BB aa 102
+  BB aa 102   BB aa 102   BB bb 102   BB bb 102   BB bb 102   BB bb 102
+  BB bb 102   BB bb 102   CC aa 102   CC aa 102   CC aa 102   CC aa 102
+  CC bb 102   CC bb 102   DD aa 102   DD aa 102   DD aa 102   DD bb 102
+  DD bb 102   DD bb 102   DD bb 102   EE aa 102   EE aa 102   EE bb 102
+  EE bb 102   EE bb 102   FF aa 102   FF aa 102   FF aa 102   FF aa 102
+  FF bb 113   FF bb 113   FF bb 113   FF bb 113   FF bb 113   FF bb 113
+  GG aa 113   GG aa 113   GG aa 113   GG aa 113   GG bb 113   GG bb 113
+  GG bb 113   GG bb 113   HH aa 113   HH aa 113   HH aa 113   HH bb 113
+  HH bb 113   HH bb 113   HH bb 113   HH bb 113   HH bb 113   II aa 113
+  II aa 113   II bb 113   II bb 113   II bb 113   II bb 113   II bb 113
+  JJ aa 257   JJ aa 257   JJ aa 257   JJ aa 257   JJ bb {}   JJ bb {}
+  JJ bb {}   JJ bb {}}
+
+do_execsql_test 1.19.6 {
+  SELECT a, b, sum(c) OVER (ORDER BY a  GROUPS BETWEEN 1 FOLLOWING         AND UNBOUNDED FOLLOWING  EXCLUDE CURRENT ROW) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 40052   AA aa 40052   AA aa 40052   AA aa 40052   AA bb 40052
+  AA bb 40052   AA bb 40052   AA bb 40052   BB aa 32712   BB aa 32712
+  BB aa 32712   BB aa 32712   BB aa 32712   BB aa 32712   BB bb 32712
+  BB bb 32712   BB bb 32712   BB bb 32712   BB bb 32712   BB bb 32712
+  CC aa 29590   CC aa 29590   CC aa 29590   CC aa 29590   CC bb 29590
+  CC bb 29590   DD aa 25558   DD aa 25558   DD aa 25558   DD bb 25558
+  DD bb 25558   DD bb 25558   DD bb 25558   EE aa 23019   EE aa 23019
+  EE bb 23019   EE bb 23019   EE bb 23019   FF aa 17351   FF aa 17351
+  FF aa 17351   FF aa 17351   FF bb 17351   FF bb 17351   FF bb 17351
+  FF bb 17351   FF bb 17351   FF bb 17351   GG aa 12883   GG aa 12883
+  GG aa 12883   GG aa 12883   GG bb 12883   GG bb 12883   GG bb 12883
+  GG bb 12883   HH aa 7440   HH aa 7440   HH aa 7440   HH bb 7440
+  HH bb 7440   HH bb 7440   HH bb 7440   HH bb 7440   HH bb 7440   II aa 3800
+  II aa 3800   II bb 3800   II bb 3800   II bb 3800   II bb 3800   II bb 3800
+  JJ aa {}   JJ aa {}   JJ aa {}   JJ aa {}   JJ bb {}   JJ bb {}   JJ bb {}
+  JJ bb {}}
+
+do_execsql_test 1.19.7 {
+  SELECT a, b, sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN 1 FOLLOWING         AND UNBOUNDED FOLLOWING  EXCLUDE CURRENT ROW) FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 42430   AA aa 42430   AA aa 42430   AA aa 42430   AA bb 40052
+  AA bb 40052   AA bb 40052   AA bb 40052   BB aa 37179   BB aa 37179
+  BB aa 37179   BB aa 37179   BB aa 37179   BB aa 37179   BB bb 32712
+  BB bb 32712   BB bb 32712   BB bb 32712   BB bb 32712   BB bb 32712
+  CC aa 30758   CC aa 30758   CC aa 30758   CC aa 30758   CC bb 29590
+  CC bb 29590   DD aa 28265   DD aa 28265   DD aa 28265   DD bb 25558
+  DD bb 25558   DD bb 25558   DD bb 25558   EE aa 24668   EE aa 24668
+  EE bb 23019   EE bb 23019   EE bb 23019   FF aa 20856   FF aa 20856
+  FF aa 20856   FF aa 20856   FF bb 17351   FF bb 17351   FF bb 17351
+  FF bb 17351   FF bb 17351   FF bb 17351   GG aa 15754   GG aa 15754
+  GG aa 15754   GG aa 15754   GG bb 12883   GG bb 12883   GG bb 12883
+  GG bb 12883   HH aa 10634   HH aa 10634   HH aa 10634   HH bb 7440
+  HH bb 7440   HH bb 7440   HH bb 7440   HH bb 7440   HH bb 7440   II aa 6390
+  II aa 6390   II bb 3800   II bb 3800   II bb 3800   II bb 3800   II bb 3800
+  JJ aa 1786   JJ aa 1786   JJ aa 1786   JJ aa 1786   JJ bb {}   JJ bb {}
+  JJ bb {}   JJ bb {}}
+
+do_execsql_test 1.19.8 {
+  SELECT a, b, 
+      sum(c) OVER (ORDER BY a  GROUPS BETWEEN 1 FOLLOWING         AND UNBOUNDED FOLLOWING  EXCLUDE CURRENT ROW),
+      sum(c) OVER (ORDER BY a  GROUPS BETWEEN 1 FOLLOWING         AND UNBOUNDED FOLLOWING ),
+      sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN 1 FOLLOWING         AND UNBOUNDED FOLLOWING  EXCLUDE CURRENT ROW),
+      sum(c) OVER (ORDER BY a,b  GROUPS BETWEEN 1 FOLLOWING         AND UNBOUNDED FOLLOWING )
+    FROM t3 ORDER BY 1, 2, 3;
+} {AA aa 40052 40052 42430 42430   AA aa 40052 40052 42430 42430
+  AA aa 40052 40052 42430 42430   AA aa 40052 40052 42430 42430
+  AA bb 40052 40052 40052 40052   AA bb 40052 40052 40052 40052
+  AA bb 40052 40052 40052 40052   AA bb 40052 40052 40052 40052
+  BB aa 32712 32712 37179 37179   BB aa 32712 32712 37179 37179
+  BB aa 32712 32712 37179 37179   BB aa 32712 32712 37179 37179
+  BB aa 32712 32712 37179 37179   BB aa 32712 32712 37179 37179
+  BB bb 32712 32712 32712 32712   BB bb 32712 32712 32712 32712
+  BB bb 32712 32712 32712 32712   BB bb 32712 32712 32712 32712
+  BB bb 32712 32712 32712 32712   BB bb 32712 32712 32712 32712
+  CC aa 29590 29590 30758 30758   CC aa 29590 29590 30758 30758
+  CC aa 29590 29590 30758 30758   CC aa 29590 29590 30758 30758
+  CC bb 29590 29590 29590 29590   CC bb 29590 29590 29590 29590
+  DD aa 25558 25558 28265 28265   DD aa 25558 25558 28265 28265
+  DD aa 25558 25558 28265 28265   DD bb 25558 25558 25558 25558
+  DD bb 25558 25558 25558 25558   DD bb 25558 25558 25558 25558
+  DD bb 25558 25558 25558 25558   EE aa 23019 23019 24668 24668
+  EE aa 23019 23019 24668 24668   EE bb 23019 23019 23019 23019
+  EE bb 23019 23019 23019 23019   EE bb 23019 23019 23019 23019
+  FF aa 17351 17351 20856 20856   FF aa 17351 17351 20856 20856
+  FF aa 17351 17351 20856 20856   FF aa 17351 17351 20856 20856
+  FF bb 17351 17351 17351 17351   FF bb 17351 17351 17351 17351
+  FF bb 17351 17351 17351 17351   FF bb 17351 17351 17351 17351
+  FF bb 17351 17351 17351 17351   FF bb 17351 17351 17351 17351
+  GG aa 12883 12883 15754 15754   GG aa 12883 12883 15754 15754
+  GG aa 12883 12883 15754 15754   GG aa 12883 12883 15754 15754
+  GG bb 12883 12883 12883 12883   GG bb 12883 12883 12883 12883
+  GG bb 12883 12883 12883 12883   GG bb 12883 12883 12883 12883
+  HH aa 7440 7440 10634 10634   HH aa 7440 7440 10634 10634
+  HH aa 7440 7440 10634 10634   HH bb 7440 7440 7440 7440
+  HH bb 7440 7440 7440 7440   HH bb 7440 7440 7440 7440
+  HH bb 7440 7440 7440 7440   HH bb 7440 7440 7440 7440
+  HH bb 7440 7440 7440 7440   II aa 3800 3800 6390 6390
+  II aa 3800 3800 6390 6390   II bb 3800 3800 3800 3800
+  II bb 3800 3800 3800 3800   II bb 3800 3800 3800 3800
+  II bb 3800 3800 3800 3800   II bb 3800 3800 3800 3800
+  JJ aa {} {} 1786 1786   JJ aa {} {} 1786 1786   JJ aa {} {} 1786 1786
+  JJ aa {} {} 1786 1786   JJ bb {} {} {} {}   JJ bb {} {} {} {}
+  JJ bb {} {} {} {}   JJ bb {} {} {} {}}
+
+do_execsql_test 2.1.1 {
+  SELECT row_number() OVER win 
+    FROM t3
+    WINDOW win AS (
+      ORDER BY c, b, a
+      ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING  EXCLUDE NO OTHERS 
+    )
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80}
+
+do_execsql_test 2.1.2 {
+  SELECT nth_value(c, 14) OVER win 
+    FROM t3
+    WINDOW win AS (
+      ORDER BY c, b, a
+      ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING  EXCLUDE NO OTHERS 
+    )
+} {247   247   247   247   247   247   247   247   247   247   247   247   247
+  247   247   247   247   247   247   247   247   247   247   247   247   247
+  247   247   247   247   247   247   247   247   247   247   247   247   247
+  247   247   247   247   247   247   247   247   247   247   247   247   247
+  247   247   247   247   247   247   247   247   247   247   247   247   247
+  247   247   247   247   247   247   247   247   247   247   247   247   247
+  247   247}
+
+do_execsql_test 2.1.3 {
+  SELECT min(c) OVER win, max(c) OVER win, sum(c) OVER win FROM t3
+    WINDOW win AS (
+      ORDER BY c, b, a
+      ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW  EXCLUDE NO OTHERS 
+    ) ORDER BY a, b, c;
+} {102 223 1358   102 239 2293   102 911 38097   102 934 39960   102 309 4159
+  102 572 10643   102 627 13069   102 870 35417   102 247 2540   102 393 6608
+  102 399 7405   102 412 7817   102 660 16277   102 762 24077   102 633 14331
+  102 705 19673   102 711 20384   102 786 27176   102 792 28758
+  102 840 32858   102 158 767   102 430 8668   102 607 11824   102 759 23315
+  102 346 5506   102 822 31179   102 224 1582   102 256 3298   102 845 34547
+  102 238 2054   102 716 21100   102 794 29552   102 959 42795   102 113 215
+  102 777 26390   102 252 3042   102 629 13698   102 768 25613   102 208 1135
+  102 618 12442   102 667 16944   102 670 17614   102 102 102   102 295 3850
+  102 574 11217   102 726 21826   102 870 36287   102 938 40898   102 148 609
+  102 335 4824   102 480 9591   102 634 14965   102 160 927   102 844 33702
+  102 929 39026   102 938 41836   102 480 10071   102 790 27966
+  102 979 44737   102 133 461   102 330 4489   102 355 6215   102 683 18968
+  102 730 22556   102 963 43758   102 398 7006   102 652 15617   102 250 2790
+  102 421 8238   102 443 9111   102 671 18285   102 805 30357   102 113 328
+  102 234 1816   102 768 24845   102 899 37186   102 257 3555   102 336 5160
+  102 354 5860   102 839 32018}
+
+do_execsql_test 2.2.1 {
+  SELECT row_number() OVER win 
+    FROM t3
+    WINDOW win AS (
+      ORDER BY c, b, a
+      ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING  EXCLUDE CURRENT ROW 
+    )
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80}
+
+do_execsql_test 2.2.2 {
+  SELECT nth_value(c, 14) OVER win 
+    FROM t3
+    WINDOW win AS (
+      ORDER BY c, b, a
+      ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING  EXCLUDE CURRENT ROW 
+    )
+} {250   250   250   250   250   250   250   250   250   250   250   250   250
+  250   247   247   247   247   247   247   247   247   247   247   247   247
+  247   247   247   247   247   247   247   247   247   247   247   247   247
+  247   247   247   247   247   247   247   247   247   247   247   247   247
+  247   247   247   247   247   247   247   247   247   247   247   247   247
+  247   247   247   247   247   247   247   247   247   247   247   247   247
+  247   247}
+
+do_execsql_test 2.2.3 {
+  SELECT min(c) OVER win, max(c) OVER win, sum(c) OVER win FROM t3
+    WINDOW win AS (
+      ORDER BY c, b, a
+      ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW  EXCLUDE CURRENT ROW 
+    ) ORDER BY a, b, c;
+} {102 208 1135   102 238 2054   102 899 37186   102 929 39026   102 295 3850
+  102 480 10071   102 618 12442   102 845 34547   102 239 2293   102 355 6215
+  102 398 7006   102 399 7405   102 652 15617   102 759 23315   102 629 13698
+  102 683 18968   102 705 19673   102 777 26390   102 790 27966
+  102 839 32018   102 148 609   102 421 8238   102 574 11217   102 730 22556
+  102 336 5160   102 805 30357   102 223 1358   102 252 3042   102 844 33702
+  102 234 1816   102 711 20384   102 792 28758   102 938 41836   102 102 102
+  102 768 25613   102 250 2790   102 627 13069   102 768 24845   102 160 927
+  102 607 11824   102 660 16277   102 667 16944   {} {} {}   102 257 3555
+  102 572 10643   102 716 21100   102 870 35417   102 934 39960   102 133 461
+  102 330 4489   102 443 9111   102 633 14331   102 158 767   102 840 32858
+  102 911 38097   102 938 40898   102 480 9591   102 786 27176
+  102 963 43758   102 113 328   102 309 4159   102 354 5860   102 671 18285
+  102 726 21826   102 959 42795   102 393 6608   102 634 14965   102 247 2540
+  102 412 7817   102 430 8668   102 670 17614   102 794 29552   102 113 215
+  102 224 1582   102 762 24077   102 870 36287   102 256 3298   102 335 4824
+  102 346 5506   102 822 31179}
+
+do_execsql_test 2.3.1 {
+  SELECT row_number() OVER win 
+    FROM t3
+    WINDOW win AS (
+      ORDER BY c, b, a
+      ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING  EXCLUDE GROUP 
+    )
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80}
+
+do_execsql_test 2.3.2 {
+  SELECT nth_value(c, 14) OVER win 
+    FROM t3
+    WINDOW win AS (
+      ORDER BY c, b, a
+      ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING  EXCLUDE GROUP 
+    )
+} {250   250   250   250   250   250   250   250   250   250   250   250   250
+  250   247   247   247   247   247   247   247   247   247   247   247   247
+  247   247   247   247   247   247   247   247   247   247   247   247   247
+  247   247   247   247   247   247   247   247   247   247   247   247   247
+  247   247   247   247   247   247   247   247   247   247   247   247   247
+  247   247   247   247   247   247   247   247   247   247   247   247   247
+  247   247}
+
+do_execsql_test 2.3.3 {
+  SELECT min(c) OVER win, max(c) OVER win, sum(c) OVER win FROM t3
+    WINDOW win AS (
+      ORDER BY c, b, a
+      ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW  EXCLUDE GROUP 
+    ) ORDER BY a, b, c;
+} {102 208 1135   102 238 2054   102 899 37186   102 929 39026   102 295 3850
+  102 480 10071   102 618 12442   102 845 34547   102 239 2293   102 355 6215
+  102 398 7006   102 399 7405   102 652 15617   102 759 23315   102 629 13698
+  102 683 18968   102 705 19673   102 777 26390   102 790 27966
+  102 839 32018   102 148 609   102 421 8238   102 574 11217   102 730 22556
+  102 336 5160   102 805 30357   102 223 1358   102 252 3042   102 844 33702
+  102 234 1816   102 711 20384   102 792 28758   102 938 41836   102 102 102
+  102 768 25613   102 250 2790   102 627 13069   102 768 24845   102 160 927
+  102 607 11824   102 660 16277   102 667 16944   {} {} {}   102 257 3555
+  102 572 10643   102 716 21100   102 870 35417   102 934 39960   102 133 461
+  102 330 4489   102 443 9111   102 633 14331   102 158 767   102 840 32858
+  102 911 38097   102 938 40898   102 480 9591   102 786 27176
+  102 963 43758   102 113 328   102 309 4159   102 354 5860   102 671 18285
+  102 726 21826   102 959 42795   102 393 6608   102 634 14965   102 247 2540
+  102 412 7817   102 430 8668   102 670 17614   102 794 29552   102 113 215
+  102 224 1582   102 762 24077   102 870 36287   102 256 3298   102 335 4824
+  102 346 5506   102 822 31179}
+
+do_execsql_test 2.4.1 {
+  SELECT row_number() OVER win 
+    FROM t3
+    WINDOW win AS (
+      ORDER BY c, b, a
+      ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING  EXCLUDE TIES 
+    )
+} {1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17
+  18   19   20   21   22   23   24   25   26   27   28   29   30   31   32
+  33   34   35   36   37   38   39   40   41   42   43   44   45   46   47
+  48   49   50   51   52   53   54   55   56   57   58   59   60   61   62
+  63   64   65   66   67   68   69   70   71   72   73   74   75   76   77
+  78   79   80}
+
+do_execsql_test 2.4.2 {
+  SELECT nth_value(c, 14) OVER win 
+    FROM t3
+    WINDOW win AS (
+      ORDER BY c, b, a
+      ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING  EXCLUDE TIES 
+    )
+} {247   247   247   247   247   247   247   247   247   247   247   247   247
+  247   247   247   247   247   247   247   247   247   247   247   247   247
+  247   247   247   247   247   247   247   247   247   247   247   247   247
+  247   247   247   247   247   247   247   247   247   247   247   247   247
+  247   247   247   247   247   247   247   247   247   247   247   247   247
+  247   247   247   247   247   247   247   247   247   247   247   247   247
+  247   247}
+
+do_execsql_test 2.4.3 {
+  SELECT min(c) OVER win, max(c) OVER win, sum(c) OVER win FROM t3
+    WINDOW win AS (
+      ORDER BY c, b, a
+      ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW  EXCLUDE TIES 
+    ) ORDER BY a, b, c;
+} {102 223 1358   102 239 2293   102 911 38097   102 934 39960   102 309 4159
+  102 572 10643   102 627 13069   102 870 35417   102 247 2540   102 393 6608
+  102 399 7405   102 412 7817   102 660 16277   102 762 24077   102 633 14331
+  102 705 19673   102 711 20384   102 786 27176   102 792 28758
+  102 840 32858   102 158 767   102 430 8668   102 607 11824   102 759 23315
+  102 346 5506   102 822 31179   102 224 1582   102 256 3298   102 845 34547
+  102 238 2054   102 716 21100   102 794 29552   102 959 42795   102 113 215
+  102 777 26390   102 252 3042   102 629 13698   102 768 25613   102 208 1135
+  102 618 12442   102 667 16944   102 670 17614   102 102 102   102 295 3850
+  102 574 11217   102 726 21826   102 870 36287   102 938 40898   102 148 609
+  102 335 4824   102 480 9591   102 634 14965   102 160 927   102 844 33702
+  102 929 39026   102 938 41836   102 480 10071   102 790 27966
+  102 979 44737   102 133 461   102 330 4489   102 355 6215   102 683 18968
+  102 730 22556   102 963 43758   102 398 7006   102 652 15617   102 250 2790
+  102 421 8238   102 443 9111   102 671 18285   102 805 30357   102 113 328
+  102 234 1816   102 768 24845   102 899 37186   102 257 3555   102 336 5160
+  102 354 5860   102 839 32018}
+
+#==========================================================================
+
+do_execsql_test 3.0 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a REAL, b INTEGER);
+  INSERT INTO t1 VALUES
+      (5, 10), (10, 20), (13, 26), (13, 26), 
+      (15, 30), (20, 40), (22,80), (30, 90);
+} {}
+
+do_execsql_test 3.1 {
+  SELECT CAST(a AS INTEGER), sum(b) OVER win FROM t1 WINDOW win AS ( ORDER BY a RANGE BETWEEN 5 PRECEDING AND 5 FOLLOWING )
+} {5 30   10 112   13 102   13 102   15 142   20 150   22 120   30 90}
+
+do_execsql_test 3.2 {
+  SELECT CAST(a AS INTEGER), sum(b) OVER win FROM t1 WINDOW win AS ( ORDER BY a RANGE BETWEEN 10 PRECEDING AND 5 PRECEDING )
+} {5 {}   10 10   13 10   13 10   15 30   20 102   22 82   30 120}
+
+do_execsql_test 3.3 {
+  SELECT CAST(a AS INTEGER), sum(b) OVER win FROM t1 WINDOW win AS ( ORDER BY a RANGE BETWEEN 2 FOLLOWING AND 3 FOLLOWING )
+} {5 {}   10 52   13 30   13 30   15 {}   20 80   22 {}   30 {}}
+
+do_execsql_test 3.4 {
+  SELECT CAST(a AS INTEGER), sum(b) OVER win FROM t1 WINDOW win AS ( ORDER BY a DESC RANGE BETWEEN 5 PRECEDING AND 5 FOLLOWING )
+} {30 90   22 120   20 150   15 142   13 102   13 102   10 112   5 30}
+
+do_execsql_test 3.5 {
+  SELECT CAST(a AS INTEGER), sum(b) OVER win FROM t1 WINDOW win AS ( ORDER BY a DESC RANGE BETWEEN 10 PRECEDING AND 5 PRECEDING )
+} {30 {}   22 90   20 90   15 120   13 120   13 120   10 70   5 102}
+
+do_execsql_test 3.6 {
+  SELECT CAST(a AS INTEGER), sum(b) OVER win FROM t1 WINDOW win AS ( ORDER BY a DESC RANGE BETWEEN 2 FOLLOWING AND 3 FOLLOWING )
+} {30 {}   22 40   20 {}   15 52   13 20   13 20   10 {}   5 {}}
+
+do_execsql_test 3.7 {
+  SELECT CAST(a AS INTEGER), sum(b) OVER win FROM t1 WINDOW win AS ( ORDER BY a RANGE BETWEEN 5.1 PRECEDING AND 5.3 FOLLOWING )
+} {5 30   10 112   13 102   13 102   15 142   20 150   22 120   30 90}
+
+do_execsql_test 3.8 {
+  SELECT CAST(a AS INTEGER), sum(b) OVER win FROM t1 WINDOW win AS ( ORDER BY a RANGE BETWEEN 10.2 PRECEDING AND 5.4 PRECEDING )
+} {5 {}   10 {}   13 10   13 10   15 10   20 72   22 82   30 120}
+
+do_execsql_test 3.9 {
+  SELECT CAST(a AS INTEGER), sum(b) OVER win FROM t1 WINDOW win AS ( ORDER BY a RANGE BETWEEN 2.6 FOLLOWING AND 3.5 FOLLOWING )
+} {5 {}   10 52   13 {}   13 {}   15 {}   20 {}   22 {}   30 {}}
+
+do_execsql_test 3.10 {
+  SELECT CAST(a AS INTEGER), sum(b) OVER win FROM t1 WINDOW win AS ( ORDER BY a DESC RANGE BETWEEN 5.7 PRECEDING AND 5.8 FOLLOWING )
+} {30 90   22 120   20 150   15 142   13 102   13 102   10 112   5 30}
+
+do_execsql_test 3.11 {
+  SELECT CAST(a AS INTEGER), sum(b) OVER win FROM t1 WINDOW win AS ( ORDER BY a DESC RANGE BETWEEN UNBOUNDED PRECEDING AND 5.9 PRECEDING )
+} {30 {}   22 90   20 90   15 170   13 210   13 210   10 210   5 292}
+
+do_execsql_test 3.12 {
+  SELECT CAST(a AS INTEGER), sum(b) OVER win FROM t1 WINDOW win AS ( ORDER BY a DESC RANGE BETWEEN 2.1 FOLLOWING AND UNBOUNDED FOLLOWING )
+} {30 232   22 112   20 112   15 30   13 30   13 30   10 10   5 {}}
+
+do_execsql_test 3.13 {
+  SELECT CAST(a AS INTEGER), sum(b) OVER win FROM t1 WINDOW win AS ( ORDER BY a RANGE 5.1 PRECEDING )
+} {5 10   10 30   13 72   13 72   15 102   20 70   22 120   30 90}
+
+#==========================================================================
+
+do_execsql_test 4.0 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a INTEGER, b INTEGER);
+  INSERT INTO t1 VALUES
+    (NULL, 1), (NULL, 2), (NULL, 3), (10, 4), (10, 5);
+} {}
+
+do_execsql_test 4.1.1 {
+  SELECT sum(b) OVER (
+    ORDER BY a RANGE BETWEEN 5 PRECEDING AND 10 FOLLOWING
+  ) FROM t1 ORDER BY 1;
+} {6   6   6   9   9}
+
+do_execsql_test 4.1.2 {
+  SELECT sum(b) OVER (
+    ORDER BY a DESC RANGE BETWEEN 5 PRECEDING AND 10 FOLLOWING
+  ) FROM t1 ORDER BY 1;
+} {6   6   6   9   9}
+
+do_execsql_test 4.2.1 {
+  SELECT sum(b) OVER (
+    ORDER BY a RANGE BETWEEN 5 FOLLOWING AND 10 FOLLOWING
+  ) FROM t1 ORDER BY 1 NULLS FIRST;
+} {{}   {}   6   6   6}
+
+do_execsql_test 4.2.2 {
+  SELECT sum(b) OVER (
+    ORDER BY a RANGE BETWEEN 5 FOLLOWING AND 10 FOLLOWING
+  ) FROM t1 ORDER BY 1 NULLS LAST;
+} {6   6   6   {}   {}}
+
+do_execsql_test 4.2.3 {
+  SELECT sum(b) OVER (
+    ORDER BY a DESC RANGE BETWEEN 5 FOLLOWING AND 10 FOLLOWING
+  ) FROM t1 ORDER BY 1 NULLS FIRST;
+} {{}   {}   6   6   6}
+
+do_execsql_test 4.2.4 {
+  SELECT sum(b) OVER (
+    ORDER BY a DESC RANGE BETWEEN 5 FOLLOWING AND 10 FOLLOWING
+  ) FROM t1 ORDER BY 1 NULLS LAST;
+} {6   6   6   {}   {}}
+
+do_execsql_test 4.3.1 {
+  SELECT sum(b) OVER (
+    ORDER BY a NULLS FIRST RANGE BETWEEN UNBOUNDED PRECEDING AND 10 FOLLOWING
+  ) FROM t1 ORDER BY 1 NULLS FIRST;
+} {6   6   6   15   15}
+
+do_execsql_test 4.3.2 {
+  SELECT sum(b) OVER (
+    ORDER BY a NULLS LAST RANGE BETWEEN UNBOUNDED PRECEDING AND 10 FOLLOWING
+  ) FROM t1 ORDER BY 1 NULLS LAST;
+} {9   9   15   15   15}
+
+do_execsql_test 4.4.1 {
+  SELECT sum(b) OVER (
+    ORDER BY a NULLS FIRST ROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING
+  ) FROM t1 ORDER BY 1 NULLS FIRST;
+} {3   6   9   9   12}
+
+do_execsql_test 4.4.2 {
+  SELECT sum(b) OVER (
+    ORDER BY a NULLS LAST ROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING
+  ) FROM t1 ORDER BY 1 NULLS LAST;
+} {5   6   8   9   10}
+
+do_execsql_test 4.4.3 {
+  SELECT sum(b) OVER (
+    ORDER BY a DESC NULLS LAST ROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING
+  ) FROM t1 ORDER BY 1 NULLS FIRST;
+} {5   6   8   9   10}
+
+do_execsql_test 4.4.4 {
+  SELECT sum(b) OVER (
+    ORDER BY a DESC NULLS LAST ROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING
+  ) FROM t1 ORDER BY 1 NULLS LAST;
+} {5   6   8   9   10}
+
+do_execsql_test 4.5.1 {
+  SELECT sum(b) OVER (
+    ORDER BY a ASC  NULLS LAST RANGE BETWEEN UNBOUNDED PRECEDING AND 10 FOLLOWING
+  ) FROM t1 ORDER BY 1 NULLS LAST;
+} {9   9   15   15   15}
+
+do_execsql_test 4.5.2 {
+  SELECT sum(b) OVER (
+    ORDER BY a DESC NULLS FIRST RANGE 
+    BETWEEN UNBOUNDED PRECEDING AND 10 FOLLOWING
+  ) FROM t1 ORDER BY 1 NULLS LAST;
+} {6   6   6   15   15}
+
+#==========================================================================
+
+do_execsql_test 5.0 {
+  INSERT INTO t3 VALUES
+    (NULL, 'bb', 355), (NULL, 'cc', 158), (NULL, 'aa', 399), 
+    ('JJ', NULL, 839), ('FF', NULL, 618), ('BB', NULL, 393), 
+    (NULL, 'bb', 629), (NULL, NULL, 667), (NULL, NULL, 870);
+} {}
+
+do_execsql_test 5.1.1.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE NO OTHERS  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {979 102 83   979 102 83   979 102 83   979 102 83   979 102 83   979 102 83
+  979 102 83   979 102 83   979 102 83   979 102 83   979 102 83   979 102 83
+  979 102 83   979 102 83   979 102 83   979 102 83   979 102 83   979 102 83
+  979 102 83   979 102 83   979 102 83   979 102 83   979 102 83   979 102 83
+  979 102 83   979 102 83   979 102 83   979 102 83   979 102 83   979 102 83
+  979 102 83   979 102 83   979 102 83   979 102 83   979 102 83   979 102 83
+  979 102 83   979 102 83   979 102 83   979 102 83   979 102 83   979 102 83
+  979 102 83   979 102 83   979 102 83   979 102 83   979 102 83   979 102 83
+  979 102 83   979 102 83   979 102 83   979 102 83   979 102 83   979 102 83
+  979 102 83   979 102 83   979 102 83   979 102 83   979 102 83   979 102 83
+  979 102 83   979 102 83   979 102 83   979 102 83   979 102 83   979 102 83
+  979 102 83   979 102 83   979 102 83   979 102 83   979 102 83   979 102 83
+  979 102 83   979 102 83   979 102 83   979 102 83   979 102 83   979 102 83
+  979 102 83   979 102 83   979 102 83   979 102 83   979 102 83   979 102 83
+  979 102 83   979 102 83   979 102 83   979 102 83   979 102 83}
+
+do_execsql_test 5.1.1.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE NO OTHERS  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1}
+
+do_execsql_test 5.1.2.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY a NULLS FIRST 
+        RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE NO OTHERS  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {899 113 9   899 113 9   899 113 9   899 113 9   899 113 9   899 113 9
+  899 113 9   899 113 9   899 113 9   899 113 16   899 113 16   899 113 16
+  899 113 16   899 113 16   899 113 16   899 113 16   979 102 44   979 102 44
+  979 102 44   979 102 44   979 102 44   979 102 44   979 102 44   979 102 44
+  979 102 44   979 102 44   979 102 44   979 102 49   979 102 49   979 102 49
+  979 102 49   979 102 49   979 102 56   979 102 56   979 102 56   979 102 56
+  979 102 56   979 102 56   979 102 56   979 102 62   979 102 62   979 102 62
+  979 102 62   979 102 62   979 102 62   979 102 75   979 102 75   979 102 75
+  979 102 75   979 102 75   979 102 75   979 102 75   979 102 75   979 102 75
+  979 102 75   979 102 75   979 102 75   979 102 75   979 102 83   979 102 83
+  979 102 83   979 102 83   979 102 83   979 102 83   979 102 83   979 102 83
+  979 102 83   979 102 83   979 102 83   979 102 83   979 102 83   979 102 83
+  979 113 25   979 113 25   979 113 25   979 113 25   979 113 25   979 113 25
+  979 113 25   979 113 25   979 113 25   979 113 33   979 113 33   979 113 33
+  979 113 33   979 113 33   979 113 33   979 113 33   979 113 33}
+
+do_execsql_test 5.1.2.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY a NULLS FIRST 
+        RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE NO OTHERS  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {2947 81 11   2947 81 11   2947 81 11   2947 81 11   2947 81 11   2947 81 11
+  2947 81 11   2947 81 11   2947 81 11   5287 74 10   5287 74 10   5287 74 10
+  5287 74 10   5287 74 10   5287 74 10   5287 74 10   8400 65 9   8400 65 9
+  8400 65 9   8400 65 9   8400 65 9   8400 65 9   8400 65 9   8400 65 9
+  8400 65 9   9664 57 8   9664 57 8   9664 57 8   9664 57 8   9664 57 8
+  9664 57 8   9664 57 8   9664 57 8   10626 46 7   10626 46 7   10626 46 7
+  10626 46 7   10626 46 7   10626 46 7   10626 46 7   10626 46 7   10626 46 7
+  10626 46 7   10626 46 7   12145 41 6   12145 41 6   12145 41 6   12145 41 6
+  12145 41 6   13949 34 5   13949 34 5   13949 34 5   13949 34 5   13949 34 5
+  13949 34 5   13949 34 5   15315 28 4   15315 28 4   15315 28 4   15315 28 4
+  15315 28 4   15315 28 4   18796 15 3   18796 15 3   18796 15 3   18796 15 3
+  18796 15 3   18796 15 3   18796 15 3   18796 15 3   18796 15 3   18796 15 3
+  18796 15 3   18796 15 3   18796 15 3   21105 7 2   21105 7 2   21105 7 2
+  21105 7 2   21105 7 2   21105 7 2   21105 7 2   21105 7 2   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1}
+
+do_execsql_test 5.1.3.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  PARTITION BY coalesce(a, '') 
+        RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE NO OTHERS  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {777 113 5   777 113 5   777 113 5   777 113 5   777 113 5   805 250 7
+  805 250 7   805 250 7   805 250 7   805 250 7   805 250 7   805 250 7
+  822 158 6   822 158 6   822 158 6   822 158 6   822 158 6   822 158 6
+  840 247 13   840 247 13   840 247 13   840 247 13   840 247 13   840 247 13
+  840 247 13   840 247 13   840 247 13   840 247 13   840 247 13   840 247 13
+  840 247 13   870 158 0   870 158 0   870 158 0   870 158 0   870 158 0
+  870 158 0   899 113 9   899 113 9   899 113 9   899 113 9   899 113 9
+  899 113 9   899 113 9   899 113 9   899 113 9   934 223 8   934 223 8
+  934 223 8   934 223 8   934 223 8   934 223 8   934 223 8   934 223 8
+  938 102 11   938 102 11   938 102 11   938 102 11   938 102 11   938 102 11
+  938 102 11   938 102 11   938 102 11   938 102 11   938 102 11   938 148 8
+  938 148 8   938 148 8   938 148 8   938 148 8   938 148 8   938 148 8
+  938 148 8   959 224 7   959 224 7   959 224 7   959 224 7   959 224 7
+  959 224 7   959 224 7   979 133 9   979 133 9   979 133 9   979 133 9
+  979 133 9   979 133 9   979 133 9   979 133 9   979 133 9}
+
+do_execsql_test 5.1.3.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  PARTITION BY coalesce(a, '') 
+        RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE NO OTHERS  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {962 1 1   962 1 1   962 1 1   962 1 1   962 1 1   962 1 1   962 1 1
+  962 1 1   962 1 1   962 1 1   962 1 1   1264 1 1   1264 1 1   1264 1 1
+  1264 1 1   1264 1 1   1264 1 1   1264 1 1   1264 1 1   1366 1 1   1366 1 1
+  1366 1 1   1366 1 1   1366 1 1   1366 1 1   1519 1 1   1519 1 1   1519 1 1
+  1519 1 1   1519 1 1   1804 1 1   1804 1 1   1804 1 1   1804 1 1   1804 1 1
+  1804 1 1   1804 1 1   2050 1 1   2050 1 1   2050 1 1   2050 1 1   2050 1 1
+  2050 1 1   2309 1 1   2309 1 1   2309 1 1   2309 1 1   2309 1 1   2309 1 1
+  2309 1 1   2309 1 1   2340 1 1   2340 1 1   2340 1 1   2340 1 1   2340 1 1
+  2340 1 1   2340 1 1   2947 1 1   2947 1 1   2947 1 1   2947 1 1   2947 1 1
+  2947 1 1   2947 1 1   2947 1 1   2947 1 1   3113 1 1   3113 1 1   3113 1 1
+  3113 1 1   3113 1 1   3113 1 1   3113 1 1   3113 1 1   3113 1 1   3481 1 1
+  3481 1 1   3481 1 1   3481 1 1   3481 1 1   3481 1 1   3481 1 1   3481 1 1
+  3481 1 1   3481 1 1   3481 1 1   3481 1 1   3481 1 1}
+
+do_execsql_test 5.1.4.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY a NULLS FIRST GROUPS 6 PRECEDING   EXCLUDE NO OTHERS  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {870 158 0   870 158 0   870 158 0   870 158 0   870 158 0   870 158 0
+  934 158 8   934 158 8   934 158 8   934 158 8   934 158 8   934 158 8
+  934 158 8   934 158 8   934 158 21   934 158 21   934 158 21   934 158 21
+  934 158 21   934 158 21   934 158 21   934 158 21   934 158 21   934 158 21
+  934 158 21   934 158 21   934 158 21   934 158 27   934 158 27   934 158 27
+  934 158 27   934 158 27   934 158 27   959 102 50   959 102 50   959 102 50
+  959 102 50   959 102 50   959 102 50   959 102 50   959 102 50   959 102 50
+  959 102 50   959 102 50   959 102 58   959 102 58   959 102 58   959 102 58
+  959 102 58   959 102 58   959 102 58   959 102 58   959 113 39   959 113 39
+  959 113 39   959 113 39   959 113 39   959 158 34   959 158 34   959 158 34
+  959 158 34   959 158 34   959 158 34   959 158 34   979 102 53   979 102 53
+  979 102 53   979 102 53   979 102 53   979 102 53   979 102 53   979 102 56
+  979 102 56   979 102 56   979 102 56   979 102 56   979 102 56   979 102 56
+  979 102 56   979 102 56   979 102 59   979 102 59   979 102 59   979 102 59
+  979 102 59   979 102 59   979 102 59   979 102 59   979 102 59}
+
+do_execsql_test 5.1.4.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY a NULLS FIRST GROUPS 6 PRECEDING   EXCLUDE NO OTHERS  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {2050 1 1   2050 1 1   2050 1 1   2050 1 1   2050 1 1   2050 1 1   4359 7 2
+  4359 7 2   4359 7 2   4359 7 2   4359 7 2   4359 7 2   4359 7 2   4359 7 2
+  7840 15 3   7840 15 3   7840 15 3   7840 15 3   7840 15 3   7840 15 3
+  7840 15 3   7840 15 3   7840 15 3   7840 15 3   7840 15 3   7840 15 3
+  7840 15 3   9206 28 4   9206 28 4   9206 28 4   9206 28 4   9206 28 4
+  9206 28 4   11010 34 5   11010 34 5   11010 34 5   11010 34 5   11010 34 5
+  11010 34 5   11010 34 5   12368 74 10   12368 74 10   12368 74 10
+  12368 74 10   12368 74 10   12368 74 10   12368 74 10   12529 41 6
+  12529 41 6   12529 41 6   12529 41 6   12529 41 6   12705 57 8   12705 57 8
+  12705 57 8   12705 57 8   12705 57 8   12705 57 8   12705 57 8   12705 57 8
+  13491 46 7   13491 46 7   13491 46 7   13491 46 7   13491 46 7   13491 46 7
+  13491 46 7   13491 46 7   13491 46 7   13491 46 7   13491 46 7   13509 65 9
+  13509 65 9   13509 65 9   13509 65 9   13509 65 9   13509 65 9   13509 65 9
+  13509 65 9   13509 65 9   13949 81 11   13949 81 11   13949 81 11
+  13949 81 11   13949 81 11   13949 81 11   13949 81 11   13949 81 11
+  13949 81 11}
+
+do_execsql_test 5.1.5.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS FIRST RANGE BETWEEN 6 PRECEDING AND 7 FOLLOWING   EXCLUDE NO OTHERS  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {102 102 1   113 113 2   113 113 2   133 133 1   148 148 1   160 158 2
+  160 158 2   160 158 2   208 208 1   224 223 2   224 223 2   239 234 3
+  239 234 3   239 234 3   252 247 3   257 247 5   257 247 5   257 250 4
+  257 252 3   295 295 1   309 309 1   336 330 3   336 330 3   336 330 3
+  346 346 1   355 354 2   355 354 2   355 354 2   399 393 4   399 393 4
+  399 393 4   399 393 4   399 393 4   412 412 1   421 421 1   430 430 1
+  443 443 1   480 480 2   480 480 2   574 572 2   574 572 2   607 607 1
+  618 618 2   618 618 2   634 627 4   634 627 4   634 627 4   634 627 4
+  634 629 3   652 652 1   667 660 2   671 667 3   671 667 3   671 667 3
+  671 667 3   683 683 1   711 705 2   716 705 3   716 711 2   730 726 2
+  730 726 2   762 759 2   768 759 4   768 762 3   768 762 3   777 777 1
+  792 786 3   794 786 4   794 786 4   794 790 3   805 805 1   822 822 1
+  845 839 5   845 839 5   845 839 5   845 839 5   845 839 5   870 870 2
+  870 870 2   870 870 2   899 899 1   911 911 1   934 929 2   938 929 4
+  938 934 3   938 934 3   963 959 2   963 959 2   979 979 1}
+
+do_execsql_test 5.1.5.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS FIRST RANGE BETWEEN 6 PRECEDING AND 7 FOLLOWING   EXCLUDE NO OTHERS  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} 1 1   {} 5 4   {} 6 5   {} 6 5   {} 8 6   {} 9 7   {} 25 23   {} 34 29
+  {} 36 31   {} 38 33   {} 38 33   {} 40 34   {} 41 35   {} 43 37   {} 43 37
+  {} 50 42   {} 60 51   {} 61 52   {} 64 55   {} 64 55   {} 67 57   {} 68 58
+  {} 69 59   {} 70 60   {} 72 62   {} 78 67   {} 78 67   {} 78 67   {} 85 72
+  {} 85 72   133 4 3   223 10 8   223 11 9   226 2 2   226 2 2   239 12 10
+  239 13 11   239 14 12   247 15 13   257 18 16   257 19 17   295 20 18
+  309 21 19   335 22 20   335 23 21   335 24 22   421 35 30   443 37 32
+  504 16 14   504 17 15   607 42 36   683 56 47   710 26 24   710 27 25
+  710 27 25   711 59 50   759 62 53   759 63 54   777 66 56   805 71 61
+  899 81 68   911 82 69   929 83 70   929 84 71   979 89 75   1334 51 43
+  1416 57 48   1416 58 49   1584 29 26   1584 29 26   1584 31 27   1584 32 28
+  1584 32 28   1891 49 41   1922 87 73   1922 88 74   2005 52 44   2005 52 44
+  2005 54 45   2005 55 46   2518 45 38   2518 46 39   2518 46 39   2518 48 40
+  2523 73 63   2523 73 63   2523 75 64   2523 76 65   2523 77 66}
+
+do_execsql_test 5.1.6.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS FIRST RANGE BETWEEN 0 PRECEDING AND 0 FOLLOWING   EXCLUDE NO OTHERS  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {102 102 1   113 113 2   113 113 2   133 133 1   148 148 1   158 158 1
+  158 158 1   160 160 1   208 208 1   223 223 1   224 224 1   234 234 1
+  238 238 1   239 239 1   247 247 1   250 250 1   252 252 1   256 256 1
+  257 257 1   295 295 1   309 309 1   330 330 1   335 335 1   336 336 1
+  346 346 1   354 354 1   355 355 1   355 355 1   393 393 2   393 393 2
+  398 398 1   399 399 1   399 399 1   412 412 1   421 421 1   430 430 1
+  443 443 1   480 480 2   480 480 2   572 572 1   574 574 1   607 607 1
+  618 618 2   618 618 2   627 627 1   629 629 1   629 629 1   633 633 1
+  634 634 1   652 652 1   660 660 1   667 667 1   667 667 1   670 670 1
+  671 671 1   683 683 1   705 705 1   711 711 1   716 716 1   726 726 1
+  730 730 1   759 759 1   762 762 1   768 768 2   768 768 2   777 777 1
+  786 786 1   790 790 1   792 792 1   794 794 1   805 805 1   822 822 1
+  839 839 2   839 839 2   840 840 1   844 844 1   845 845 1   870 870 2
+  870 870 2   870 870 2   899 899 1   911 911 1   929 929 1   934 934 1
+  938 938 2   938 938 2   959 959 1   963 963 1   979 979 1}
+
+do_execsql_test 5.1.6.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS FIRST RANGE BETWEEN 0 PRECEDING AND 0 FOLLOWING   EXCLUDE NO OTHERS  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} 1 1   {} 5 4   {} 6 5   {} 6 5   {} 8 6   {} 9 7   {} 11 9   {} 12 10
+  {} 13 11   {} 16 14   {} 17 15   {} 18 16   {} 22 20   {} 24 22   {} 25 23
+  {} 26 24   {} 31 27   {} 34 29   {} 36 31   {} 38 33   {} 38 33   {} 40 34
+  {} 41 35   {} 43 37   {} 43 37   {} 49 41   {} 50 42   {} 51 43   {} 54 45
+  {} 59 50   {} 60 51   {} 61 52   {} 63 54   {} 64 55   {} 64 55   {} 67 57
+  {} 68 58   {} 69 59   {} 70 60   {} 72 62   {} 75 64   {} 76 65   {} 78 67
+  {} 78 67   {} 78 67   {} 84 71   {} 85 72   {} 85 72   133 4 3   223 10 8
+  226 2 2   226 2 2   239 14 12   247 15 13   257 19 17   295 20 18
+  309 21 19   335 23 21   421 35 30   443 37 32   607 42 36   627 45 38
+  633 48 40   671 55 46   683 56 47   705 57 48   710 27 25   710 27 25
+  711 58 49   759 62 53   777 66 56   786 29 26   786 29 26   798 32 28
+  798 32 28   805 71 61   845 77 66   899 81 68   911 82 69   929 83 70
+  959 87 73   963 88 74   979 89 75   1258 46 39   1258 46 39   1334 52 44
+  1334 52 44   1678 73 63   1678 73 63}
+
+do_execsql_test 5.1.7.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS FIRST, b NULLS FIRST, a NULLS FIRST
+        ROWS BETWEEN 6 PRECEDING AND UNBOUNDED FOLLOWING   EXCLUDE NO OTHERS  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {979 102 83   979 102 83   979 102 83   979 102 83   979 102 83   979 102 83
+  979 102 83   979 113 81   979 113 82   979 133 80   979 148 79   979 158 77
+  979 158 78   979 160 77   979 208 76   979 223 75   979 224 74   979 234 73
+  979 238 72   979 239 71   979 247 70   979 250 69   979 252 68   979 256 67
+  979 257 66   979 295 65   979 309 64   979 330 63   979 335 62   979 336 61
+  979 346 60   979 354 59   979 355 58   979 355 58   979 393 56   979 393 57
+  979 398 55   979 399 54   979 399 54   979 412 53   979 421 52   979 430 51
+  979 443 50   979 480 48   979 480 49   979 572 47   979 574 46   979 607 45
+  979 618 43   979 618 44   979 627 42   979 629 41   979 629 41   979 633 40
+  979 634 39   979 652 38   979 660 37   979 667 36   979 667 36   979 670 35
+  979 671 34   979 683 33   979 705 32   979 711 31   979 716 30   979 726 29
+  979 730 28   979 759 27   979 762 26   979 768 24   979 768 25   979 777 23
+  979 786 22   979 790 21   979 792 20   979 794 19   979 805 18   979 822 17
+  979 839 15   979 839 16   979 840 14   979 844 13   979 845 12   979 870 10
+  979 870 11   979 870 11   979 899 9   979 911 8   979 929 7}
+
+do_execsql_test 5.1.7.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS FIRST, b NULLS FIRST, a NULLS FIRST
+        ROWS BETWEEN 6 PRECEDING AND UNBOUNDED FOLLOWING   EXCLUDE NO OTHERS  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {3830 89 89   4741 88 88   5640 84 84   5640 85 85   5640 86 86   5640 87 87
+  6485 81 81   6485 82 82   6485 83 83   7324 80 80   8163 78 78   8163 79 79
+  8968 73 73   8968 74 74   8968 75 75   8968 76 76   8968 77 77   9745 69 69
+  9745 70 70   9745 71 71   9745 72 72   10504 65 65   10504 66 66
+  10504 67 67   10504 68 68   11215 64 64   11920 63 63   12603 62 62
+  13274 60 60   13274 61 61   13941 59 59   14608 55 55   14608 56 56
+  14608 57 57   14608 58 58   15241 54 54   15870 53 53   16499 52 52
+  17126 49 49   17126 50 50   17126 51 51   17733 44 44   17733 45 45
+  17733 46 46   17733 47 47   17733 48 48   18176 42 42   18176 43 43
+  18597 40 40   18597 41 41   18996 39 39   19395 37 37   19395 38 38
+  19788 36 36   20181 35 35   20536 34 34   20891 30 30   20891 31 31
+  20891 32 32   20891 33 33   21226 28 28   21226 29 29   21535 27 27
+  21830 26 26   22087 22 22   22087 23 23   22087 24 24   22087 25 25
+  22334 21 21   22573 17 17   22573 18 18   22573 19 19   22573 20 20
+  22796 11 11   22796 12 12   22796 13 13   22796 14 14   22796 15 15
+  22796 16 16   22929 10 10   23042 9 9   23155 1 1   23155 2 2   23155 3 3
+  23155 4 4   23155 5 5   23155 6 6   23155 7 7   23155 8 8}
+
+do_execsql_test 5.1.8.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE NO OTHERS  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {979 102 83   979 102 83   979 102 83   979 102 83   979 102 83   979 102 83
+  979 102 83   979 102 83   979 102 83   979 102 83   979 102 83   979 102 83
+  979 102 83   979 102 83   979 102 83   979 102 83   979 102 83   979 102 83
+  979 102 83   979 102 83   979 102 83   979 102 83   979 102 83   979 102 83
+  979 102 83   979 102 83   979 102 83   979 102 83   979 102 83   979 102 83
+  979 102 83   979 102 83   979 102 83   979 102 83   979 102 83   979 102 83
+  979 102 83   979 102 83   979 102 83   979 102 83   979 102 83   979 102 83
+  979 102 83   979 102 83   979 102 83   979 102 83   979 102 83   979 102 83
+  979 102 83   979 102 83   979 102 83   979 102 83   979 102 83   979 102 83
+  979 102 83   979 102 83   979 102 83   979 102 83   979 102 83   979 102 83
+  979 102 83   979 102 83   979 102 83   979 102 83   979 102 83   979 102 83
+  979 102 83   979 102 83   979 102 83   979 102 83   979 102 83   979 102 83
+  979 102 83   979 102 83   979 102 83   979 102 83   979 102 83   979 102 83
+  979 102 83   979 102 83   979 102 83   979 102 83   979 102 83   979 102 83
+  979 102 83   979 102 83   979 102 83   979 102 83   979 102 83}
+
+do_execsql_test 5.1.8.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE NO OTHERS  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1}
+
+do_execsql_test 5.1.9.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY a NULLS LAST 
+        RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE NO OTHERS  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {870 158 0   870 158 0   870 158 0   870 158 0   870 158 0   870 158 0
+  899 113 9   899 113 9   899 113 9   899 113 9   899 113 9   899 113 9
+  899 113 9   899 113 9   899 113 9   899 113 16   899 113 16   899 113 16
+  899 113 16   899 113 16   899 113 16   899 113 16   979 102 44   979 102 44
+  979 102 44   979 102 44   979 102 44   979 102 44   979 102 44   979 102 44
+  979 102 44   979 102 44   979 102 44   979 102 49   979 102 49   979 102 49
+  979 102 49   979 102 49   979 102 56   979 102 56   979 102 56   979 102 56
+  979 102 56   979 102 56   979 102 56   979 102 62   979 102 62   979 102 62
+  979 102 62   979 102 62   979 102 62   979 102 75   979 102 75   979 102 75
+  979 102 75   979 102 75   979 102 75   979 102 75   979 102 75   979 102 75
+  979 102 75   979 102 75   979 102 75   979 102 75   979 102 83   979 102 83
+  979 102 83   979 102 83   979 102 83   979 102 83   979 102 83   979 102 83
+  979 113 25   979 113 25   979 113 25   979 113 25   979 113 25   979 113 25
+  979 113 25   979 113 25   979 113 25   979 113 33   979 113 33   979 113 33
+  979 113 33   979 113 33   979 113 33   979 113 33   979 113 33}
+
+do_execsql_test 5.1.9.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY a NULLS LAST 
+        RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE NO OTHERS  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {2050 84 11   2050 84 11   2050 84 11   2050 84 11   2050 84 11   2050 84 11
+  4997 75 10   4997 75 10   4997 75 10   4997 75 10   4997 75 10   4997 75 10
+  4997 75 10   4997 75 10   4997 75 10   7337 68 9   7337 68 9   7337 68 9
+  7337 68 9   7337 68 9   7337 68 9   7337 68 9   10450 59 8   10450 59 8
+  10450 59 8   10450 59 8   10450 59 8   10450 59 8   10450 59 8   10450 59 8
+  10450 59 8   11714 51 7   11714 51 7   11714 51 7   11714 51 7   11714 51 7
+  11714 51 7   11714 51 7   11714 51 7   12676 40 6   12676 40 6   12676 40 6
+  12676 40 6   12676 40 6   12676 40 6   12676 40 6   12676 40 6   12676 40 6
+  12676 40 6   12676 40 6   14195 35 5   14195 35 5   14195 35 5   14195 35 5
+  14195 35 5   15999 28 4   15999 28 4   15999 28 4   15999 28 4   15999 28 4
+  15999 28 4   15999 28 4   17365 22 3   17365 22 3   17365 22 3   17365 22 3
+  17365 22 3   17365 22 3   20846 9 2   20846 9 2   20846 9 2   20846 9 2
+  20846 9 2   20846 9 2   20846 9 2   20846 9 2   20846 9 2   20846 9 2
+  20846 9 2   20846 9 2   20846 9 2   23155 1 1   23155 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1}
+
+do_execsql_test 5.1.10.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  PARTITION BY coalesce(a, '') 
+        RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE NO OTHERS  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {777 113 5   777 113 5   777 113 5   777 113 5   777 113 5   805 250 7
+  805 250 7   805 250 7   805 250 7   805 250 7   805 250 7   805 250 7
+  822 158 6   822 158 6   822 158 6   822 158 6   822 158 6   822 158 6
+  840 247 13   840 247 13   840 247 13   840 247 13   840 247 13   840 247 13
+  840 247 13   840 247 13   840 247 13   840 247 13   840 247 13   840 247 13
+  840 247 13   870 158 0   870 158 0   870 158 0   870 158 0   870 158 0
+  870 158 0   899 113 9   899 113 9   899 113 9   899 113 9   899 113 9
+  899 113 9   899 113 9   899 113 9   899 113 9   934 223 8   934 223 8
+  934 223 8   934 223 8   934 223 8   934 223 8   934 223 8   934 223 8
+  938 102 11   938 102 11   938 102 11   938 102 11   938 102 11   938 102 11
+  938 102 11   938 102 11   938 102 11   938 102 11   938 102 11   938 148 8
+  938 148 8   938 148 8   938 148 8   938 148 8   938 148 8   938 148 8
+  938 148 8   959 224 7   959 224 7   959 224 7   959 224 7   959 224 7
+  959 224 7   959 224 7   979 133 9   979 133 9   979 133 9   979 133 9
+  979 133 9   979 133 9   979 133 9   979 133 9   979 133 9}
+
+do_execsql_test 5.1.10.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  PARTITION BY coalesce(a, '') 
+        RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE NO OTHERS  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {962 1 1   962 1 1   962 1 1   962 1 1   962 1 1   962 1 1   962 1 1
+  962 1 1   962 1 1   962 1 1   962 1 1   1264 1 1   1264 1 1   1264 1 1
+  1264 1 1   1264 1 1   1264 1 1   1264 1 1   1264 1 1   1366 1 1   1366 1 1
+  1366 1 1   1366 1 1   1366 1 1   1366 1 1   1519 1 1   1519 1 1   1519 1 1
+  1519 1 1   1519 1 1   1804 1 1   1804 1 1   1804 1 1   1804 1 1   1804 1 1
+  1804 1 1   1804 1 1   2050 1 1   2050 1 1   2050 1 1   2050 1 1   2050 1 1
+  2050 1 1   2309 1 1   2309 1 1   2309 1 1   2309 1 1   2309 1 1   2309 1 1
+  2309 1 1   2309 1 1   2340 1 1   2340 1 1   2340 1 1   2340 1 1   2340 1 1
+  2340 1 1   2340 1 1   2947 1 1   2947 1 1   2947 1 1   2947 1 1   2947 1 1
+  2947 1 1   2947 1 1   2947 1 1   2947 1 1   3113 1 1   3113 1 1   3113 1 1
+  3113 1 1   3113 1 1   3113 1 1   3113 1 1   3113 1 1   3113 1 1   3481 1 1
+  3481 1 1   3481 1 1   3481 1 1   3481 1 1   3481 1 1   3481 1 1   3481 1 1
+  3481 1 1   3481 1 1   3481 1 1   3481 1 1   3481 1 1}
+
+do_execsql_test 5.1.11.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY a NULLS LAST GROUPS 6 PRECEDING   EXCLUDE NO OTHERS  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {934 158 27   934 158 27   934 158 27   934 158 27   934 158 27   934 158 27
+  934 223 8   934 223 8   934 223 8   934 223 8   934 223 8   934 223 8
+  934 223 8   934 223 8   934 223 21   934 223 21   934 223 21   934 223 21
+  934 223 21   934 223 21   934 223 21   934 223 21   934 223 21   934 223 21
+  934 223 21   934 223 21   934 223 21   959 102 50   959 102 50   959 102 50
+  959 102 50   959 102 50   959 102 50   959 102 50   959 102 50   959 102 50
+  959 102 50   959 102 50   959 102 58   959 102 58   959 102 58   959 102 58
+  959 102 58   959 102 58   959 102 58   959 102 58   959 113 39   959 113 39
+  959 113 39   959 113 39   959 113 39   959 158 34   959 158 34   959 158 34
+  959 158 34   959 158 34   959 158 34   959 158 34   979 102 49   979 102 49
+  979 102 49   979 102 49   979 102 49   979 102 49   979 102 53   979 102 53
+  979 102 53   979 102 53   979 102 53   979 102 53   979 102 53   979 102 56
+  979 102 56   979 102 56   979 102 56   979 102 56   979 102 56   979 102 56
+  979 102 56   979 102 56   979 102 59   979 102 59   979 102 59   979 102 59
+  979 102 59   979 102 59   979 102 59   979 102 59   979 102 59}
+
+do_execsql_test 5.1.11.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY a NULLS LAST GROUPS 6 PRECEDING   EXCLUDE NO OTHERS  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {2309 1 1   2309 1 1   2309 1 1   2309 1 1   2309 1 1   2309 1 1   2309 1 1
+  2309 1 1   5790 9 2   5790 9 2   5790 9 2   5790 9 2   5790 9 2   5790 9 2
+  5790 9 2   5790 9 2   5790 9 2   5790 9 2   5790 9 2   5790 9 2   5790 9 2
+  7156 22 3   7156 22 3   7156 22 3   7156 22 3   7156 22 3   7156 22 3
+  8960 28 4   8960 28 4   8960 28 4   8960 28 4   8960 28 4   8960 28 4
+  8960 28 4   10479 35 5   10479 35 5   10479 35 5   10479 35 5   10479 35 5
+  11441 40 6   11441 40 6   11441 40 6   11441 40 6   11441 40 6   11441 40 6
+  11441 40 6   11441 40 6   11441 40 6   11441 40 6   11441 40 6   12368 68 9
+  12368 68 9   12368 68 9   12368 68 9   12368 68 9   12368 68 9   12368 68 9
+  12705 51 7   12705 51 7   12705 51 7   12705 51 7   12705 51 7   12705 51 7
+  12705 51 7   12705 51 7   13509 59 8   13509 59 8   13509 59 8   13509 59 8
+  13509 59 8   13509 59 8   13509 59 8   13509 59 8   13509 59 8
+  13949 75 10   13949 75 10   13949 75 10   13949 75 10   13949 75 10
+  13949 75 10   13949 75 10   13949 75 10   13949 75 10   14195 84 11
+  14195 84 11   14195 84 11   14195 84 11   14195 84 11   14195 84 11}
+
+do_execsql_test 5.1.12.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS LAST RANGE BETWEEN 6 PRECEDING AND 7 FOLLOWING   EXCLUDE NO OTHERS  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {102 102 1   113 113 2   113 113 2   133 133 1   148 148 1   160 158 2
+  160 158 2   160 158 2   208 208 1   224 223 2   224 223 2   239 234 3
+  239 234 3   239 234 3   252 247 3   257 247 5   257 247 5   257 250 4
+  257 252 3   295 295 1   309 309 1   336 330 3   336 330 3   336 330 3
+  346 346 1   355 354 2   355 354 2   355 354 2   399 393 4   399 393 4
+  399 393 4   399 393 4   399 393 4   412 412 1   421 421 1   430 430 1
+  443 443 1   480 480 2   480 480 2   574 572 2   574 572 2   607 607 1
+  618 618 2   618 618 2   634 627 4   634 627 4   634 627 4   634 627 4
+  634 629 3   652 652 1   667 660 2   671 667 3   671 667 3   671 667 3
+  671 667 3   683 683 1   711 705 2   716 705 3   716 711 2   730 726 2
+  730 726 2   762 759 2   768 759 4   768 762 3   768 762 3   777 777 1
+  792 786 3   794 786 4   794 786 4   794 790 3   805 805 1   822 822 1
+  845 839 5   845 839 5   845 839 5   845 839 5   845 839 5   870 870 2
+  870 870 2   870 870 2   899 899 1   911 911 1   934 929 2   938 929 4
+  938 934 3   938 934 3   963 959 2   963 959 2   979 979 1}
+
+do_execsql_test 5.1.12.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS LAST RANGE BETWEEN 6 PRECEDING AND 7 FOLLOWING   EXCLUDE NO OTHERS  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} 1 1   {} 5 4   {} 6 5   {} 6 5   {} 8 6   {} 9 7   {} 25 23   {} 34 29
+  {} 36 31   {} 38 33   {} 38 33   {} 40 34   {} 41 35   {} 43 37   {} 43 37
+  {} 50 42   {} 60 51   {} 61 52   {} 64 55   {} 64 55   {} 67 57   {} 68 58
+  {} 69 59   {} 70 60   {} 72 62   {} 78 67   {} 78 67   {} 78 67   {} 85 72
+  {} 85 72   133 4 3   223 10 8   223 11 9   226 2 2   226 2 2   239 12 10
+  239 13 11   239 14 12   247 15 13   257 18 16   257 19 17   295 20 18
+  309 21 19   335 22 20   335 23 21   335 24 22   421 35 30   443 37 32
+  504 16 14   504 17 15   607 42 36   683 56 47   710 26 24   710 27 25
+  710 27 25   711 59 50   759 62 53   759 63 54   777 66 56   805 71 61
+  899 81 68   911 82 69   929 83 70   929 84 71   979 89 75   1334 51 43
+  1416 57 48   1416 58 49   1584 29 26   1584 29 26   1584 31 27   1584 32 28
+  1584 32 28   1891 49 41   1922 87 73   1922 88 74   2005 52 44   2005 52 44
+  2005 54 45   2005 55 46   2518 45 38   2518 46 39   2518 46 39   2518 48 40
+  2523 73 63   2523 73 63   2523 75 64   2523 76 65   2523 77 66}
+
+do_execsql_test 5.1.13.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS LAST RANGE BETWEEN 0 PRECEDING AND 0 FOLLOWING   EXCLUDE NO OTHERS  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {102 102 1   113 113 2   113 113 2   133 133 1   148 148 1   158 158 1
+  158 158 1   160 160 1   208 208 1   223 223 1   224 224 1   234 234 1
+  238 238 1   239 239 1   247 247 1   250 250 1   252 252 1   256 256 1
+  257 257 1   295 295 1   309 309 1   330 330 1   335 335 1   336 336 1
+  346 346 1   354 354 1   355 355 1   355 355 1   393 393 2   393 393 2
+  398 398 1   399 399 1   399 399 1   412 412 1   421 421 1   430 430 1
+  443 443 1   480 480 2   480 480 2   572 572 1   574 574 1   607 607 1
+  618 618 2   618 618 2   627 627 1   629 629 1   629 629 1   633 633 1
+  634 634 1   652 652 1   660 660 1   667 667 1   667 667 1   670 670 1
+  671 671 1   683 683 1   705 705 1   711 711 1   716 716 1   726 726 1
+  730 730 1   759 759 1   762 762 1   768 768 2   768 768 2   777 777 1
+  786 786 1   790 790 1   792 792 1   794 794 1   805 805 1   822 822 1
+  839 839 2   839 839 2   840 840 1   844 844 1   845 845 1   870 870 2
+  870 870 2   870 870 2   899 899 1   911 911 1   929 929 1   934 934 1
+  938 938 2   938 938 2   959 959 1   963 963 1   979 979 1}
+
+do_execsql_test 5.1.13.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS LAST RANGE BETWEEN 0 PRECEDING AND 0 FOLLOWING   EXCLUDE NO OTHERS  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} 1 1   {} 5 4   {} 6 5   {} 6 5   {} 8 6   {} 9 7   {} 11 9   {} 12 10
+  {} 13 11   {} 16 14   {} 17 15   {} 18 16   {} 22 20   {} 24 22   {} 25 23
+  {} 26 24   {} 31 27   {} 34 29   {} 36 31   {} 38 33   {} 38 33   {} 40 34
+  {} 41 35   {} 43 37   {} 43 37   {} 49 41   {} 50 42   {} 51 43   {} 54 45
+  {} 59 50   {} 60 51   {} 61 52   {} 63 54   {} 64 55   {} 64 55   {} 67 57
+  {} 68 58   {} 69 59   {} 70 60   {} 72 62   {} 75 64   {} 76 65   {} 78 67
+  {} 78 67   {} 78 67   {} 84 71   {} 85 72   {} 85 72   133 4 3   223 10 8
+  226 2 2   226 2 2   239 14 12   247 15 13   257 19 17   295 20 18
+  309 21 19   335 23 21   421 35 30   443 37 32   607 42 36   627 45 38
+  633 48 40   671 55 46   683 56 47   705 57 48   710 27 25   710 27 25
+  711 58 49   759 62 53   777 66 56   786 29 26   786 29 26   798 32 28
+  798 32 28   805 71 61   845 77 66   899 81 68   911 82 69   929 83 70
+  959 87 73   963 88 74   979 89 75   1258 46 39   1258 46 39   1334 52 44
+  1334 52 44   1678 73 63   1678 73 63}
+
+do_execsql_test 5.1.14.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS LAST, b NULLS LAST, a NULLS LAST
+        ROWS BETWEEN 6 PRECEDING AND UNBOUNDED FOLLOWING   EXCLUDE NO OTHERS  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {979 102 83   979 102 83   979 102 83   979 102 83   979 102 83   979 102 83
+  979 102 83   979 113 81   979 113 82   979 133 80   979 148 79   979 158 77
+  979 158 78   979 160 77   979 208 76   979 223 75   979 224 74   979 234 73
+  979 238 72   979 239 71   979 247 70   979 250 69   979 252 68   979 256 67
+  979 257 66   979 295 65   979 309 64   979 330 63   979 335 62   979 336 61
+  979 346 60   979 354 59   979 355 57   979 355 58   979 393 56   979 393 57
+  979 398 55   979 399 53   979 399 54   979 412 53   979 421 52   979 430 51
+  979 443 50   979 480 48   979 480 49   979 572 47   979 574 46   979 607 45
+  979 618 43   979 618 44   979 627 42   979 629 40   979 629 41   979 633 40
+  979 634 39   979 652 38   979 660 37   979 667 35   979 667 36   979 670 35
+  979 671 34   979 683 33   979 705 32   979 711 31   979 716 30   979 726 29
+  979 730 28   979 759 27   979 762 26   979 768 24   979 768 25   979 777 23
+  979 786 22   979 790 21   979 792 20   979 794 19   979 805 18   979 822 17
+  979 839 15   979 839 16   979 840 14   979 844 13   979 845 12   979 870 9
+  979 870 10   979 870 11   979 899 9   979 911 8   979 929 7}
+
+do_execsql_test 5.1.14.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS LAST, b NULLS LAST, a NULLS LAST
+        ROWS BETWEEN 6 PRECEDING AND UNBOUNDED FOLLOWING   EXCLUDE NO OTHERS  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {3830 89 89   4741 88 88   5640 84 84   5640 85 85   5640 86 86   5640 87 87
+  6485 81 81   6485 82 82   6485 83 83   7324 80 80   8163 78 78   8163 79 79
+  8968 73 73   8968 74 74   8968 75 75   8968 76 76   8968 77 77   9745 69 69
+  9745 70 70   9745 71 71   9745 72 72   10504 65 65   10504 66 66
+  10504 67 67   10504 68 68   11215 64 64   11920 63 63   12603 62 62
+  13274 60 60   13274 61 61   13941 59 59   14608 55 55   14608 56 56
+  14608 57 57   14608 58 58   15241 54 54   15870 53 53   16499 52 52
+  17126 49 49   17126 50 50   17126 51 51   17733 44 44   17733 45 45
+  17733 46 46   17733 47 47   17733 48 48   18176 42 42   18176 43 43
+  18597 40 40   18597 41 41   18996 39 39   19395 37 37   19395 38 38
+  19788 36 36   20181 35 35   20536 34 34   20891 30 30   20891 31 31
+  20891 32 32   20891 33 33   21226 28 28   21226 29 29   21535 27 27
+  21830 26 26   22087 22 22   22087 23 23   22087 24 24   22087 25 25
+  22334 21 21   22573 17 17   22573 18 18   22573 19 19   22573 20 20
+  22796 11 11   22796 12 12   22796 13 13   22796 14 14   22796 15 15
+  22796 16 16   22929 10 10   23042 9 9   23155 1 1   23155 2 2   23155 3 3
+  23155 4 4   23155 5 5   23155 6 6   23155 7 7   23155 8 8}
+
+do_execsql_test 5.2.1.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE CURRENT ROW  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {963 102 82   979 102 82   979 102 82   979 102 82   979 102 82   979 102 82
+  979 102 82   979 102 82   979 102 82   979 102 82   979 102 82   979 102 82
+  979 102 82   979 102 82   979 102 82   979 102 82   979 102 82   979 102 82
+  979 102 82   979 102 82   979 102 82   979 102 82   979 102 82   979 102 82
+  979 102 82   979 102 82   979 102 82   979 102 82   979 102 82   979 102 82
+  979 102 82   979 102 82   979 102 82   979 102 82   979 102 82   979 102 82
+  979 102 82   979 102 82   979 102 82   979 102 82   979 102 82   979 102 82
+  979 102 82   979 102 82   979 102 82   979 102 82   979 102 82   979 102 82
+  979 102 82   979 102 82   979 102 82   979 102 82   979 102 82   979 102 82
+  979 102 82   979 102 82   979 102 82   979 102 82   979 102 82   979 102 82
+  979 102 82   979 102 82   979 102 82   979 102 82   979 102 82   979 102 82
+  979 102 82   979 102 82   979 102 82   979 102 82   979 102 82   979 102 82
+  979 102 82   979 102 82   979 102 82   979 102 82   979 102 82   979 102 82
+  979 102 82   979 102 82   979 102 82   979 102 82   979 102 83   979 102 83
+  979 102 83   979 102 83   979 102 83   979 102 83   979 113 82}
+
+do_execsql_test 5.2.1.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE CURRENT ROW  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {22176 1 1   22192 1 1   22196 1 1   22226 1 1   22244 1 1   22256 1 1
+  22310 1 1   22316 1 1   22316 1 1   22350 1 1   22378 1 1   22396 1 1
+  22444 1 1   22450 1 1   22472 1 1   22484 1 1   22488 1 1   22488 1 1
+  22522 1 1   22526 1 1   22526 1 1   22528 1 1   22548 1 1   22712 1 1
+  22734 1 1   22756 1 1   22756 1 1   22762 1 1   22762 1 1   22800 1 1
+  22800 1 1   22820 1 1   22846 1 1   22860 1 1   22898 1 1   22908 1 1
+  22916 1 1   22932 1 1   23022 1 1   23042 1 1   23042 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1}
+
+do_execsql_test 5.2.2.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY a NULLS FIRST 
+        RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE CURRENT ROW  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {839 113 8   899 113 8   899 113 8   899 113 8   899 113 8   899 113 8
+  899 113 8   899 113 8   899 113 15   899 113 15   899 113 15   899 113 15
+  899 113 15   899 113 15   899 113 15   899 234 8   963 113 24   979 102 43
+  979 102 43   979 102 43   979 102 43   979 102 43   979 102 43   979 102 43
+  979 102 43   979 102 43   979 102 43   979 102 48   979 102 48   979 102 48
+  979 102 48   979 102 48   979 102 55   979 102 55   979 102 55   979 102 55
+  979 102 55   979 102 55   979 102 55   979 102 61   979 102 61   979 102 61
+  979 102 61   979 102 61   979 102 61   979 102 74   979 102 74   979 102 74
+  979 102 74   979 102 74   979 102 74   979 102 74   979 102 74   979 102 74
+  979 102 74   979 102 74   979 102 74   979 102 74   979 102 82   979 102 82
+  979 102 82   979 102 82   979 102 82   979 102 82   979 102 82   979 102 82
+  979 102 83   979 102 83   979 102 83   979 102 83   979 102 83   979 102 83
+  979 113 24   979 113 24   979 113 24   979 113 24   979 113 24   979 113 24
+  979 113 24   979 113 24   979 113 32   979 113 32   979 113 32   979 113 32
+  979 113 32   979 113 32   979 113 32   979 113 32   979 113 43}
+
+do_execsql_test 5.2.2.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY a NULLS FIRST 
+        RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE CURRENT ROW  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {2048 81 11   2108 81 11   2108 81 11   2690 81 11   2834 81 11   2947 81 11
+  2947 81 11   2947 81 11   2947 81 11   4482 74 10   4616 74 10   4844 74 10
+  4866 74 10   5287 74 10   5287 74 10   5287 74 10   7421 65 9   7437 65 9
+  7717 65 9   8045 65 9   8267 65 9   8400 65 9   8400 65 9   8400 65 9
+  8400 65 9   8735 57 8   9329 57 8   9664 57 8   9664 57 8   9664 57 8
+  9664 57 8   9664 57 8   9664 57 8   9959 46 7   10331 46 7   10626 46 7
+  10626 46 7   10626 46 7   10626 46 7   10626 46 7   10626 46 7   10626 46 7
+  10626 46 7   10626 46 7   11368 41 6   11516 41 6   12032 41 6   12145 41 6
+  12145 41 6   12990 34 5   13104 34 5   13949 34 5   13949 34 5   13949 34 5
+  13949 34 5   13949 34 5   14556 28 4   14708 28 4   15315 28 4   15315 28 4
+  15315 28 4   15315 28 4   18085 15 3   18091 15 3   18163 15 3   18397 15 3
+  18403 15 3   18403 15 3   18549 15 3   18796 15 3   18796 15 3   18796 15 3
+  18796 15 3   18796 15 3   18796 15 3   20194 7 2   20478 7 2   20796 7 2
+  20866 7 2   20882 7 2   21105 7 2   21105 7 2   21105 7 2   22488 1 1
+  22526 1 1   22756 1 1   22800 1 1   23155 1 1   23155 1 1}
+
+do_execsql_test 5.2.3.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  PARTITION BY coalesce(a, '') 
+        RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE CURRENT ROW  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {667 158 0   671 250 6   759 158 5   768 113 4   777 113 4   777 113 4
+  777 113 4   777 252 4   792 247 12   805 250 6   805 250 6   805 250 6
+  805 250 6   805 250 6   805 398 6   822 158 5   822 158 5   822 158 5
+  822 158 5   822 346 5   839 113 8   840 247 12   840 247 12   840 247 12
+  840 247 12   840 247 12   840 247 12   840 247 12   840 247 12   840 247 12
+  840 247 12   840 247 12   840 393 12   845 224 6   870 102 10   870 158 0
+  870 158 0   870 158 0   870 158 0   870 355 0   899 113 8   899 113 8
+  899 113 8   899 113 8   899 113 8   899 113 8   899 113 8   899 234 8
+  911 223 7   929 148 7   934 223 7   934 223 7   934 223 7   934 223 7
+  934 223 7   934 223 7   934 239 7   938 102 10   938 102 10   938 102 10
+  938 102 10   938 102 10   938 102 10   938 102 10   938 102 10   938 102 10
+  938 148 7   938 148 7   938 148 7   938 148 7   938 148 7   938 148 7
+  938 160 7   938 208 10   959 224 6   959 224 6   959 224 6   959 224 6
+  959 224 6   959 238 6   963 133 8   979 133 8   979 133 8   979 133 8
+  979 133 8   979 133 8   979 133 8   979 133 8   979 330 8}
+
+do_execsql_test 5.2.3.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  PARTITION BY coalesce(a, '') 
+        RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE CURRENT ROW  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {295 1 1   335 1 1   607 1 1   667 1 1   742 1 1   759 1 1   845 1 1
+  890 1 1   929 1 1   959 1 1   962 1 1   962 1 1   962 1 1   962 1 1
+  962 1 1   962 1 1   962 1 1   962 1 1   962 1 1   1264 1 1   1264 1 1
+  1264 1 1   1264 1 1   1264 1 1   1264 1 1   1366 1 1   1366 1 1   1366 1 1
+  1366 1 1   1383 1 1   1398 1 1   1406 1 1   1421 1 1   1519 1 1   1519 1 1
+  1535 1 1   1651 1 1   1669 1 1   1682 1 1   1695 1 1   1804 1 1   1804 1 1
+  1804 1 1   1804 1 1   1804 1 1   1897 1 1   1919 1 1   2000 1 1   2048 1 1
+  2050 1 1   2050 1 1   2070 1 1   2086 1 1   2108 1 1   2108 1 1   2134 1 1
+  2150 1 1   2309 1 1   2309 1 1   2309 1 1   2340 1 1   2340 1 1   2340 1 1
+  2430 1 1   2690 1 1   2758 1 1   2770 1 1   2776 1 1   2834 1 1   2848 1 1
+  2947 1 1   2947 1 1   2947 1 1   2947 1 1   2980 1 1   3082 1 1   3088 1 1
+  3088 1 1   3113 1 1   3113 1 1   3113 1 1   3113 1 1   3234 1 1   3481 1 1
+  3481 1 1   3481 1 1   3481 1 1   3481 1 1   3481 1 1}
+
+do_execsql_test 5.2.4.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY a NULLS FIRST GROUPS 6 PRECEDING   EXCLUDE CURRENT ROW  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {667 158 0   870 158 0   870 158 0   870 158 0   870 158 0   870 355 0
+  911 158 7   934 158 7   934 158 7   934 158 7   934 158 7   934 158 7
+  934 158 7   934 158 7   934 158 20   934 158 20   934 158 20   934 158 20
+  934 158 20   934 158 20   934 158 20   934 158 20   934 158 20   934 158 20
+  934 158 20   934 158 20   934 158 20   934 158 26   934 158 26   934 158 26
+  934 158 26   934 158 26   934 158 26   934 158 33   959 102 49   959 102 49
+  959 102 49   959 102 49   959 102 49   959 102 49   959 102 49   959 102 49
+  959 102 49   959 102 49   959 102 57   959 102 57   959 102 57   959 102 57
+  959 102 57   959 102 57   959 102 57   959 102 57   959 113 38   959 113 38
+  959 113 38   959 113 38   959 113 49   959 158 33   959 158 33   959 158 33
+  959 158 33   959 158 33   959 158 33   959 158 38   963 102 58   979 102 52
+  979 102 52   979 102 52   979 102 52   979 102 52   979 102 52   979 102 52
+  979 102 55   979 102 55   979 102 55   979 102 55   979 102 55   979 102 55
+  979 102 55   979 102 55   979 102 55   979 102 58   979 102 58   979 102 58
+  979 102 58   979 102 58   979 102 58   979 102 58   979 102 58}
+
+do_execsql_test 5.2.4.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY a NULLS FIRST GROUPS 6 PRECEDING   EXCLUDE CURRENT ROW  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {1383 1 1   1421 1 1   1651 1 1   1695 1 1   2050 1 1   2050 1 1   3448 7 2
+  3732 7 2   4050 7 2   4120 7 2   4136 7 2   4359 7 2   4359 7 2   4359 7 2
+  7129 15 3   7135 15 3   7207 15 3   7441 15 3   7447 15 3   7447 15 3
+  7593 15 3   7840 15 3   7840 15 3   7840 15 3   7840 15 3   7840 15 3
+  7840 15 3   8447 28 4   8599 28 4   9206 28 4   9206 28 4   9206 28 4
+  9206 28 4   10051 34 5   10165 34 5   11010 34 5   11010 34 5   11010 34 5
+  11010 34 5   11010 34 5   11563 74 10   11697 74 10   11752 41 6
+  11776 57 8   11900 41 6   11925 74 10   11947 74 10   12368 74 10
+  12368 74 10   12368 74 10   12370 57 8   12416 41 6   12529 41 6
+  12529 41 6   12530 65 9   12546 65 9   12705 57 8   12705 57 8   12705 57 8
+  12705 57 8   12705 57 8   12705 57 8   12824 46 7   12826 65 9
+  13050 81 11   13110 81 11   13110 81 11   13154 65 9   13196 46 7
+  13376 65 9   13491 46 7   13491 46 7   13491 46 7   13491 46 7   13491 46 7
+  13491 46 7   13491 46 7   13491 46 7   13491 46 7   13509 65 9   13509 65 9
+  13509 65 9   13509 65 9   13692 81 11   13836 81 11   13949 81 11
+  13949 81 11   13949 81 11   13949 81 11}
+
+do_execsql_test 5.2.5.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS FIRST RANGE BETWEEN 6 PRECEDING AND 7 FOLLOWING   EXCLUDE CURRENT ROW  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   113 113 1
+  113 113 1   158 158 1   160 158 1   160 158 2   223 223 1   224 224 1
+  238 234 2   239 234 2   239 238 2   252 250 2   256 252 2   257 247 4
+  257 247 4   257 250 3   335 330 2   336 330 2   336 335 2   355 354 1
+  355 354 2   355 355 1   399 393 3   399 393 3   399 393 3   399 393 3
+  399 393 4   480 480 1   480 480 1   572 572 1   574 574 1   618 618 1
+  618 618 1   633 629 2   634 627 3   634 627 3   634 627 4   634 629 3
+  667 667 1   670 667 2   671 667 2   671 667 2   671 667 3   711 711 1
+  711 711 1   716 705 2   726 726 1   730 730 1   762 762 1   768 759 3
+  768 762 2   768 762 2   792 790 2   792 790 2   794 786 3   794 786 3
+  844 839 4   845 839 4   845 839 4   845 839 4   845 839 4   870 870 1
+  870 870 1   870 870 2   934 934 1   938 929 3   938 934 2   938 934 2
+  959 959 1   963 963 1}
+
+do_execsql_test 5.2.5.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS FIRST RANGE BETWEEN 6 PRECEDING AND 7 FOLLOWING   EXCLUDE CURRENT ROW  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} 1 1   {} 4 3   {} 5 4   {} 6 5   {} 6 5   {} 8 6   {} 9 7   {} 10 8
+  {} 14 12   {} 15 13   {} 19 17   {} 20 18   {} 21 19   {} 23 21   {} 25 23
+  {} 34 29   {} 35 30   {} 36 31   {} 37 32   {} 38 33   {} 38 33   {} 40 34
+  {} 41 35   {} 42 36   {} 43 37   {} 43 37   {} 50 42   {} 56 47   {} 60 51
+  {} 61 52   {} 62 53   {} 64 55   {} 64 55   {} 66 56   {} 67 57   {} 68 58
+  {} 69 59   {} 70 60   {} 71 61   {} 72 62   {} 78 67   {} 78 67   {} 78 67
+  {} 81 68   {} 82 69   {} 83 70   {} 85 72   {} 85 72   {} 89 75   113 2 2
+  113 2 2   223 11 9   239 12 10   239 13 11   257 18 16   335 22 20
+  335 24 22   355 27 25   355 27 25   504 16 14   504 17 15   705 58 49
+  710 26 24   711 57 48   711 59 50   759 63 54   929 84 71   959 88 74
+  963 87 73   1185 32 28   1185 32 28   1191 29 26   1191 29 26   1334 51 43
+  1334 55 46   1338 52 44   1338 52 44   1584 31 27   1678 77 66   1684 73 63
+  1684 73 63   1885 48 40   1889 46 39   1889 46 39   1891 45 38   1891 49 41
+  2005 54 45   2523 75 64   2523 76 65}
+
+do_execsql_test 5.2.6.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS FIRST RANGE BETWEEN 0 PRECEDING AND 0 FOLLOWING   EXCLUDE CURRENT ROW  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   113 113 1
+  113 113 1   158 158 0   158 158 1   355 355 0   355 355 1   393 393 1
+  393 393 1   399 399 0   399 399 1   480 480 1   480 480 1   618 618 1
+  618 618 1   629 629 0   629 629 1   667 667 0   667 667 1   768 768 1
+  768 768 1   839 839 1   839 839 1   870 870 1   870 870 1   870 870 2
+  938 938 1   938 938 1}
+
+do_execsql_test 5.2.6.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS FIRST RANGE BETWEEN 0 PRECEDING AND 0 FOLLOWING   EXCLUDE CURRENT ROW  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} 1 1   {} 4 3   {} 5 4   {} 6 5   {} 6 5   {} 8 6   {} 9 7   {} 10 8
+  {} 11 9   {} 12 10   {} 13 11   {} 14 12   {} 15 13   {} 16 14   {} 17 15
+  {} 18 16   {} 19 17   {} 20 18   {} 21 19   {} 22 20   {} 23 21   {} 24 22
+  {} 25 23   {} 26 24   {} 31 27   {} 34 29   {} 35 30   {} 36 31   {} 37 32
+  {} 38 33   {} 38 33   {} 40 34   {} 41 35   {} 42 36   {} 43 37   {} 43 37
+  {} 45 38   {} 48 40   {} 49 41   {} 50 42   {} 51 43   {} 54 45   {} 55 46
+  {} 56 47   {} 57 48   {} 58 49   {} 59 50   {} 60 51   {} 61 52   {} 62 53
+  {} 63 54   {} 64 55   {} 64 55   {} 66 56   {} 67 57   {} 68 58   {} 69 59
+  {} 70 60   {} 71 61   {} 72 62   {} 75 64   {} 76 65   {} 77 66   {} 78 67
+  {} 78 67   {} 78 67   {} 81 68   {} 82 69   {} 83 70   {} 84 71   {} 85 72
+  {} 85 72   {} 87 73   {} 88 74   {} 89 75   113 2 2   113 2 2   355 27 25
+  355 27 25   393 29 26   393 29 26   399 32 28   399 32 28   629 46 39
+  629 46 39   667 52 44   667 52 44   839 73 63   839 73 63}
+
+do_execsql_test 5.2.7.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS FIRST, b NULLS FIRST, a NULLS FIRST
+        ROWS BETWEEN 6 PRECEDING AND UNBOUNDED FOLLOWING   EXCLUDE CURRENT ROW  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {963 929 6   979 102 82   979 102 82   979 102 82   979 102 82   979 102 82
+  979 102 83   979 113 80   979 113 81   979 113 82   979 133 79   979 148 78
+  979 158 76   979 158 77   979 160 76   979 208 75   979 223 74   979 224 73
+  979 234 72   979 238 71   979 239 70   979 247 69   979 250 68   979 252 67
+  979 256 66   979 257 65   979 295 64   979 309 64   979 330 62   979 335 61
+  979 336 60   979 346 59   979 354 59   979 355 57   979 355 57   979 393 55
+  979 393 56   979 398 54   979 399 53   979 399 53   979 412 52   979 421 51
+  979 430 50   979 443 49   979 480 47   979 480 48   979 572 47   979 574 45
+  979 607 44   979 618 42   979 618 43   979 627 41   979 629 40   979 629 41
+  979 633 39   979 634 38   979 652 37   979 660 36   979 667 35   979 667 35
+  979 670 34   979 671 33   979 683 32   979 705 31   979 711 30   979 716 29
+  979 726 28   979 730 27   979 759 26   979 762 25   979 768 23   979 768 24
+  979 777 22   979 786 21   979 790 20   979 792 19   979 794 18   979 805 17
+  979 822 17   979 839 14   979 839 15   979 840 13   979 844 12   979 845 11
+  979 870 9   979 870 10   979 870 10   979 899 8   979 911 7}
+
+do_execsql_test 5.2.7.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS FIRST, b NULLS FIRST, a NULLS FIRST
+        ROWS BETWEEN 6 PRECEDING AND UNBOUNDED FOLLOWING   EXCLUDE CURRENT ROW  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {2851 89 89   3778 88 88   4681 87 87   5556 83 83   5574 82 82   5586 81 81
+  5640 84 84   5640 85 85   5640 86 86   7324 80 80   8123 77 77   8129 73 73
+  8129 74 74   8163 78 78   8163 79 79   8940 71 71   8968 75 75   8968 76 76
+  9727 66 66   9745 69 69   9745 70 70   9745 72 72   10504 65 65
+  10504 67 67   10504 68 68   11215 64 64   11844 62 62   11920 63 63
+  13274 60 60   13274 61 61   13897 58 58   13903 57 57   13925 56 56
+  13937 55 55   13941 59 59   15203 53 53   15241 54 54   15832 52 52
+  17100 48 48   17104 46 46   17104 47 47   17106 45 45   17126 49 49
+  17126 50 50   17126 51 51   17569 42 42   17733 44 44   18176 43 43
+  18597 40 40   18597 41 41   18952 37 37   18996 39 39   19395 38 38
+  19760 35 35   19788 36 36   20492 32 32   20492 33 33   20498 30 30
+  20536 34 34   20833 29 29   20871 28 28   20891 31 31   21180 27 27
+  21752 23 23   21830 26 26   22025 21 21   22087 22 22   22087 24 24
+  22087 25 25   22278 20 20   22316 19 19   22549 15 15   22557 14 14
+  22573 17 17   22573 18 18   22706 10 10   22796 11 11   22796 12 12
+  22796 13 13   22796 16 16   23022 4 4   23042 2 2   23042 3 3   23042 9 9
+  23155 1 1   23155 5 5   23155 6 6   23155 7 7   23155 8 8}
+
+do_execsql_test 5.2.8.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE CURRENT ROW  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {963 102 82   979 102 82   979 102 82   979 102 82   979 102 82   979 102 82
+  979 102 82   979 102 82   979 102 82   979 102 82   979 102 82   979 102 82
+  979 102 82   979 102 82   979 102 82   979 102 82   979 102 82   979 102 82
+  979 102 82   979 102 82   979 102 82   979 102 82   979 102 82   979 102 82
+  979 102 82   979 102 82   979 102 82   979 102 82   979 102 82   979 102 82
+  979 102 82   979 102 82   979 102 82   979 102 82   979 102 82   979 102 82
+  979 102 82   979 102 82   979 102 82   979 102 82   979 102 82   979 102 82
+  979 102 82   979 102 82   979 102 82   979 102 82   979 102 82   979 102 82
+  979 102 82   979 102 82   979 102 82   979 102 82   979 102 82   979 102 82
+  979 102 82   979 102 82   979 102 82   979 102 82   979 102 82   979 102 82
+  979 102 82   979 102 82   979 102 82   979 102 82   979 102 82   979 102 82
+  979 102 82   979 102 82   979 102 82   979 102 82   979 102 82   979 102 82
+  979 102 82   979 102 82   979 102 82   979 102 82   979 102 82   979 102 82
+  979 102 82   979 102 82   979 102 82   979 102 82   979 102 83   979 102 83
+  979 102 83   979 102 83   979 102 83   979 102 83   979 113 82}
+
+do_execsql_test 5.2.8.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE CURRENT ROW  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {22176 1 1   22192 1 1   22196 1 1   22226 1 1   22244 1 1   22256 1 1
+  22310 1 1   22316 1 1   22316 1 1   22350 1 1   22378 1 1   22396 1 1
+  22444 1 1   22450 1 1   22472 1 1   22484 1 1   22488 1 1   22488 1 1
+  22522 1 1   22526 1 1   22526 1 1   22528 1 1   22548 1 1   22712 1 1
+  22734 1 1   22756 1 1   22756 1 1   22762 1 1   22762 1 1   22800 1 1
+  22800 1 1   22820 1 1   22846 1 1   22860 1 1   22898 1 1   22908 1 1
+  22916 1 1   22932 1 1   23022 1 1   23042 1 1   23042 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1
+  23155 1 1   23155 1 1   23155 1 1   23155 1 1   23155 1 1}
+
+do_execsql_test 5.2.9.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY a NULLS LAST 
+        RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE CURRENT ROW  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {667 158 0   870 113 8   870 158 0   870 158 0   870 158 0   870 158 0
+  870 355 0   899 113 8   899 113 8   899 113 8   899 113 8   899 113 8
+  899 113 8   899 113 8   899 113 15   899 113 15   899 113 15   899 113 15
+  899 113 15   899 113 15   899 113 15   899 158 8   963 113 24   979 102 43
+  979 102 43   979 102 43   979 102 43   979 102 43   979 102 43   979 102 43
+  979 102 43   979 102 43   979 102 43   979 102 48   979 102 48   979 102 48
+  979 102 48   979 102 48   979 102 55   979 102 55   979 102 55   979 102 55
+  979 102 55   979 102 55   979 102 55   979 102 61   979 102 61   979 102 61
+  979 102 61   979 102 61   979 102 61   979 102 74   979 102 74   979 102 74
+  979 102 74   979 102 74   979 102 74   979 102 74   979 102 74   979 102 74
+  979 102 74   979 102 74   979 102 74   979 102 74   979 102 82   979 102 82
+  979 102 82   979 102 82   979 102 82   979 102 82   979 102 82   979 102 82
+  979 113 24   979 113 24   979 113 24   979 113 24   979 113 24   979 113 24
+  979 113 24   979 113 24   979 113 32   979 113 32   979 113 32   979 113 32
+  979 113 32   979 113 32   979 113 32   979 113 32   979 113 43}
+
+do_execsql_test 5.2.9.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY a NULLS LAST 
+        RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE CURRENT ROW  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {1383 84 11   1421 84 11   1651 84 11   1695 84 11   2050 84 11   2050 84 11
+  4098 75 10   4158 75 10   4158 75 10   4740 75 10   4884 75 10   4997 75 10
+  4997 75 10   4997 75 10   4997 75 10   6532 68 9   6666 68 9   6894 68 9
+  6916 68 9   7337 68 9   7337 68 9   7337 68 9   9471 59 8   9487 59 8
+  9767 59 8   10095 59 8   10317 59 8   10450 59 8   10450 59 8   10450 59 8
+  10450 59 8   10785 51 7   11379 51 7   11714 51 7   11714 51 7   11714 51 7
+  11714 51 7   11714 51 7   11714 51 7   12009 40 6   12381 40 6   12676 40 6
+  12676 40 6   12676 40 6   12676 40 6   12676 40 6   12676 40 6   12676 40 6
+  12676 40 6   12676 40 6   13418 35 5   13566 35 5   14082 35 5   14195 35 5
+  14195 35 5   15040 28 4   15154 28 4   15999 28 4   15999 28 4   15999 28 4
+  15999 28 4   15999 28 4   16606 22 3   16758 22 3   17365 22 3   17365 22 3
+  17365 22 3   17365 22 3   20135 9 2   20141 9 2   20213 9 2   20447 9 2
+  20453 9 2   20453 9 2   20599 9 2   20846 9 2   20846 9 2   20846 9 2
+  20846 9 2   20846 9 2   20846 9 2   22244 1 1   22528 1 1   22846 1 1
+  22916 1 1   22932 1 1   23155 1 1   23155 1 1   23155 1 1}
+
+do_execsql_test 5.2.10.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  PARTITION BY coalesce(a, '') 
+        RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE CURRENT ROW  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {667 158 0   671 250 6   759 158 5   768 113 4   777 113 4   777 113 4
+  777 113 4   777 252 4   792 247 12   805 250 6   805 250 6   805 250 6
+  805 250 6   805 250 6   805 398 6   822 158 5   822 158 5   822 158 5
+  822 158 5   822 346 5   839 113 8   840 247 12   840 247 12   840 247 12
+  840 247 12   840 247 12   840 247 12   840 247 12   840 247 12   840 247 12
+  840 247 12   840 247 12   840 393 12   845 224 6   870 102 10   870 158 0
+  870 158 0   870 158 0   870 158 0   870 355 0   899 113 8   899 113 8
+  899 113 8   899 113 8   899 113 8   899 113 8   899 113 8   899 234 8
+  911 223 7   929 148 7   934 223 7   934 223 7   934 223 7   934 223 7
+  934 223 7   934 223 7   934 239 7   938 102 10   938 102 10   938 102 10
+  938 102 10   938 102 10   938 102 10   938 102 10   938 102 10   938 102 10
+  938 148 7   938 148 7   938 148 7   938 148 7   938 148 7   938 148 7
+  938 160 7   938 208 10   959 224 6   959 224 6   959 224 6   959 224 6
+  959 224 6   959 238 6   963 133 8   979 133 8   979 133 8   979 133 8
+  979 133 8   979 133 8   979 133 8   979 133 8   979 330 8}
+
+do_execsql_test 5.2.10.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  PARTITION BY coalesce(a, '') 
+        RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE CURRENT ROW  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {295 1 1   335 1 1   607 1 1   667 1 1   742 1 1   759 1 1   845 1 1
+  890 1 1   929 1 1   959 1 1   962 1 1   962 1 1   962 1 1   962 1 1
+  962 1 1   962 1 1   962 1 1   962 1 1   962 1 1   1264 1 1   1264 1 1
+  1264 1 1   1264 1 1   1264 1 1   1264 1 1   1366 1 1   1366 1 1   1366 1 1
+  1366 1 1   1383 1 1   1398 1 1   1406 1 1   1421 1 1   1519 1 1   1519 1 1
+  1535 1 1   1651 1 1   1669 1 1   1682 1 1   1695 1 1   1804 1 1   1804 1 1
+  1804 1 1   1804 1 1   1804 1 1   1897 1 1   1919 1 1   2000 1 1   2048 1 1
+  2050 1 1   2050 1 1   2070 1 1   2086 1 1   2108 1 1   2108 1 1   2134 1 1
+  2150 1 1   2309 1 1   2309 1 1   2309 1 1   2340 1 1   2340 1 1   2340 1 1
+  2430 1 1   2690 1 1   2758 1 1   2770 1 1   2776 1 1   2834 1 1   2848 1 1
+  2947 1 1   2947 1 1   2947 1 1   2947 1 1   2980 1 1   3082 1 1   3088 1 1
+  3088 1 1   3113 1 1   3113 1 1   3113 1 1   3113 1 1   3234 1 1   3481 1 1
+  3481 1 1   3481 1 1   3481 1 1   3481 1 1   3481 1 1}
+
+do_execsql_test 5.2.11.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY a NULLS LAST GROUPS 6 PRECEDING   EXCLUDE CURRENT ROW  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {911 223 7   934 158 26   934 158 26   934 158 26   934 158 26   934 158 26
+  934 158 33   934 223 7   934 223 7   934 223 7   934 223 7   934 223 7
+  934 223 7   934 223 20   934 223 20   934 223 20   934 223 20   934 223 20
+  934 223 20   934 223 20   934 223 20   934 223 20   934 223 20   934 223 20
+  934 223 20   934 223 20   934 223 26   934 239 7   959 102 49   959 102 49
+  959 102 49   959 102 49   959 102 49   959 102 49   959 102 49   959 102 49
+  959 102 49   959 102 49   959 102 57   959 102 57   959 102 57   959 102 57
+  959 102 57   959 102 57   959 102 57   959 102 57   959 113 38   959 113 38
+  959 113 38   959 113 38   959 113 49   959 158 33   959 158 33   959 158 33
+  959 158 33   959 158 33   959 158 33   959 158 38   963 102 58   979 102 49
+  979 102 49   979 102 49   979 102 49   979 102 49   979 102 49   979 102 52
+  979 102 52   979 102 52   979 102 52   979 102 52   979 102 52   979 102 52
+  979 102 55   979 102 55   979 102 55   979 102 55   979 102 55   979 102 55
+  979 102 55   979 102 55   979 102 55   979 102 58   979 102 58   979 102 58
+  979 102 58   979 102 58   979 102 58   979 102 58   979 102 58}
+
+do_execsql_test 5.2.11.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY a NULLS LAST GROUPS 6 PRECEDING   EXCLUDE CURRENT ROW  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {1398 1 1   1682 1 1   2000 1 1   2070 1 1   2086 1 1   2309 1 1   2309 1 1
+  2309 1 1   5079 9 2   5085 9 2   5157 9 2   5391 9 2   5397 9 2   5397 9 2
+  5543 9 2   5790 9 2   5790 9 2   5790 9 2   5790 9 2   5790 9 2   5790 9 2
+  6397 22 3   6549 22 3   7156 22 3   7156 22 3   7156 22 3   7156 22 3
+  8001 28 4   8115 28 4   8960 28 4   8960 28 4   8960 28 4   8960 28 4
+  8960 28 4   9702 35 5   9850 35 5   10366 35 5   10479 35 5   10479 35 5
+  10774 40 6   11146 40 6   11441 40 6   11441 40 6   11441 40 6   11441 40 6
+  11441 40 6   11441 40 6   11441 40 6   11441 40 6   11441 40 6   11563 68 9
+  11697 68 9   11776 51 7   11925 68 9   11947 68 9   12368 68 9   12368 68 9
+  12368 68 9   12370 51 7   12530 59 8   12546 59 8   12705 51 7   12705 51 7
+  12705 51 7   12705 51 7   12705 51 7   12705 51 7   12826 59 8
+  13050 75 10   13110 75 10   13110 75 10   13154 59 8   13376 59 8
+  13509 59 8   13509 59 8   13509 59 8   13509 59 8   13528 84 11
+  13566 84 11   13692 75 10   13796 84 11   13836 75 10   13840 84 11
+  13949 75 10   13949 75 10   13949 75 10   13949 75 10   14195 84 11
+  14195 84 11}
+
+do_execsql_test 5.2.12.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS LAST RANGE BETWEEN 6 PRECEDING AND 7 FOLLOWING   EXCLUDE CURRENT ROW  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   113 113 1
+  113 113 1   158 158 1   160 158 1   160 158 2   223 223 1   224 224 1
+  238 234 2   239 234 2   239 238 2   252 250 2   256 252 2   257 247 4
+  257 247 4   257 250 3   335 330 2   336 330 2   336 335 2   355 354 1
+  355 354 2   355 355 1   399 393 3   399 393 3   399 393 3   399 393 3
+  399 393 4   480 480 1   480 480 1   572 572 1   574 574 1   618 618 1
+  618 618 1   633 629 2   634 627 3   634 627 3   634 627 4   634 629 3
+  667 667 1   670 667 2   671 667 2   671 667 2   671 667 3   711 711 1
+  711 711 1   716 705 2   726 726 1   730 730 1   762 762 1   768 759 3
+  768 762 2   768 762 2   792 790 2   792 790 2   794 786 3   794 786 3
+  844 839 4   845 839 4   845 839 4   845 839 4   845 839 4   870 870 1
+  870 870 1   870 870 2   934 934 1   938 929 3   938 934 2   938 934 2
+  959 959 1   963 963 1}
+
+do_execsql_test 5.2.12.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS LAST RANGE BETWEEN 6 PRECEDING AND 7 FOLLOWING   EXCLUDE CURRENT ROW  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} 1 1   {} 4 3   {} 5 4   {} 6 5   {} 6 5   {} 8 6   {} 9 7   {} 10 8
+  {} 14 12   {} 15 13   {} 19 17   {} 20 18   {} 21 19   {} 23 21   {} 25 23
+  {} 34 29   {} 35 30   {} 36 31   {} 37 32   {} 38 33   {} 38 33   {} 40 34
+  {} 41 35   {} 42 36   {} 43 37   {} 43 37   {} 50 42   {} 56 47   {} 60 51
+  {} 61 52   {} 62 53   {} 64 55   {} 64 55   {} 66 56   {} 67 57   {} 68 58
+  {} 69 59   {} 70 60   {} 71 61   {} 72 62   {} 78 67   {} 78 67   {} 78 67
+  {} 81 68   {} 82 69   {} 83 70   {} 85 72   {} 85 72   {} 89 75   113 2 2
+  113 2 2   223 11 9   239 12 10   239 13 11   257 18 16   335 22 20
+  335 24 22   355 27 25   355 27 25   504 16 14   504 17 15   705 58 49
+  710 26 24   711 57 48   711 59 50   759 63 54   929 84 71   959 88 74
+  963 87 73   1185 32 28   1185 32 28   1191 29 26   1191 29 26   1334 51 43
+  1334 55 46   1338 52 44   1338 52 44   1584 31 27   1678 77 66   1684 73 63
+  1684 73 63   1885 48 40   1889 46 39   1889 46 39   1891 45 38   1891 49 41
+  2005 54 45   2523 75 64   2523 76 65}
+
+do_execsql_test 5.2.13.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS LAST RANGE BETWEEN 0 PRECEDING AND 0 FOLLOWING   EXCLUDE CURRENT ROW  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   113 113 1
+  113 113 1   158 158 0   158 158 1   355 355 0   355 355 1   393 393 1
+  393 393 1   399 399 0   399 399 1   480 480 1   480 480 1   618 618 1
+  618 618 1   629 629 0   629 629 1   667 667 0   667 667 1   768 768 1
+  768 768 1   839 839 1   839 839 1   870 870 1   870 870 1   870 870 2
+  938 938 1   938 938 1}
+
+do_execsql_test 5.2.13.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS LAST RANGE BETWEEN 0 PRECEDING AND 0 FOLLOWING   EXCLUDE CURRENT ROW  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} 1 1   {} 4 3   {} 5 4   {} 6 5   {} 6 5   {} 8 6   {} 9 7   {} 10 8
+  {} 11 9   {} 12 10   {} 13 11   {} 14 12   {} 15 13   {} 16 14   {} 17 15
+  {} 18 16   {} 19 17   {} 20 18   {} 21 19   {} 22 20   {} 23 21   {} 24 22
+  {} 25 23   {} 26 24   {} 31 27   {} 34 29   {} 35 30   {} 36 31   {} 37 32
+  {} 38 33   {} 38 33   {} 40 34   {} 41 35   {} 42 36   {} 43 37   {} 43 37
+  {} 45 38   {} 48 40   {} 49 41   {} 50 42   {} 51 43   {} 54 45   {} 55 46
+  {} 56 47   {} 57 48   {} 58 49   {} 59 50   {} 60 51   {} 61 52   {} 62 53
+  {} 63 54   {} 64 55   {} 64 55   {} 66 56   {} 67 57   {} 68 58   {} 69 59
+  {} 70 60   {} 71 61   {} 72 62   {} 75 64   {} 76 65   {} 77 66   {} 78 67
+  {} 78 67   {} 78 67   {} 81 68   {} 82 69   {} 83 70   {} 84 71   {} 85 72
+  {} 85 72   {} 87 73   {} 88 74   {} 89 75   113 2 2   113 2 2   355 27 25
+  355 27 25   393 29 26   393 29 26   399 32 28   399 32 28   629 46 39
+  629 46 39   667 52 44   667 52 44   839 73 63   839 73 63}
+
+do_execsql_test 5.2.14.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS LAST, b NULLS LAST, a NULLS LAST
+        ROWS BETWEEN 6 PRECEDING AND UNBOUNDED FOLLOWING   EXCLUDE CURRENT ROW  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {963 929 6   979 102 82   979 102 82   979 102 82   979 102 82   979 102 82
+  979 102 83   979 113 80   979 113 81   979 113 82   979 133 79   979 148 78
+  979 158 76   979 158 77   979 160 76   979 208 75   979 223 74   979 224 73
+  979 234 72   979 238 71   979 239 70   979 247 69   979 250 68   979 252 67
+  979 256 66   979 257 65   979 295 64   979 309 63   979 330 63   979 335 61
+  979 336 60   979 346 59   979 354 58   979 355 56   979 355 58   979 393 55
+  979 393 56   979 398 54   979 399 52   979 399 53   979 412 52   979 421 51
+  979 430 50   979 443 49   979 480 47   979 480 48   979 572 46   979 574 46
+  979 607 44   979 618 42   979 618 43   979 627 41   979 629 40   979 629 40
+  979 633 39   979 634 38   979 652 37   979 660 36   979 667 34   979 667 35
+  979 670 34   979 671 33   979 683 32   979 705 31   979 711 30   979 716 29
+  979 726 28   979 730 27   979 759 26   979 762 25   979 768 23   979 768 24
+  979 777 22   979 786 21   979 790 20   979 792 19   979 794 18   979 805 17
+  979 822 16   979 839 15   979 839 15   979 840 13   979 844 12   979 845 11
+  979 870 8   979 870 9   979 870 10   979 899 8   979 911 7}
+
+do_execsql_test 5.2.14.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS LAST, b NULLS LAST, a NULLS LAST
+        ROWS BETWEEN 6 PRECEDING AND UNBOUNDED FOLLOWING   EXCLUDE CURRENT ROW  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {2851 89 89   3778 88 88   4681 87 87   5556 83 83   5574 82 82   5586 81 81
+  5640 84 84   5640 85 85   5640 86 86   7324 80 80   8123 77 77   8129 73 73
+  8129 74 74   8163 78 78   8163 79 79   8940 71 71   8968 75 75   8968 76 76
+  9727 66 66   9745 69 69   9745 70 70   9745 72 72   10504 65 65
+  10504 67 67   10504 68 68   11215 64 64   11844 62 62   11920 63 63
+  13274 60 60   13274 61 61   13897 58 58   13903 57 57   13925 56 56
+  13937 55 55   13941 59 59   15203 53 53   15241 54 54   15832 52 52
+  17100 48 48   17104 46 46   17104 47 47   17106 45 45   17126 49 49
+  17126 50 50   17126 51 51   17569 42 42   17733 44 44   18176 43 43
+  18597 40 40   18597 41 41   18952 37 37   18996 39 39   19395 38 38
+  19760 35 35   19788 36 36   20492 32 32   20492 33 33   20498 30 30
+  20536 34 34   20833 29 29   20871 28 28   20891 31 31   21180 27 27
+  21752 23 23   21830 26 26   22025 21 21   22087 22 22   22087 24 24
+  22087 25 25   22278 20 20   22316 19 19   22549 15 15   22557 14 14
+  22573 17 17   22573 18 18   22706 10 10   22796 11 11   22796 12 12
+  22796 13 13   22796 16 16   23022 4 4   23042 2 2   23042 3 3   23042 9 9
+  23155 1 1   23155 5 5   23155 6 6   23155 7 7   23155 8 8}
+
+do_execsql_test 5.3.1.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE GROUP  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0}
+
+do_execsql_test 5.3.1.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE GROUP  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1}
+
+do_execsql_test 5.3.2.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY a NULLS FIRST 
+        RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE GROUP  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   899 113 9   899 113 9   899 113 9   899 113 9
+  899 113 9   899 113 9   899 113 9   899 113 16   899 113 16   899 113 16
+  899 113 16   899 113 16   899 113 16   899 113 16   899 113 16   899 113 16
+  979 102 44   979 102 44   979 102 44   979 102 44   979 102 44   979 102 49
+  979 102 49   979 102 49   979 102 49   979 102 49   979 102 49   979 102 49
+  979 102 56   979 102 56   979 102 56   979 102 56   979 102 56   979 102 56
+  979 102 62   979 102 62   979 102 62   979 102 62   979 102 62   979 102 62
+  979 102 62   979 102 62   979 102 62   979 102 62   979 102 62   979 102 62
+  979 102 62   979 102 75   979 102 75   979 102 75   979 102 75   979 102 75
+  979 102 75   979 102 75   979 102 75   979 102 83   979 102 83   979 102 83
+  979 102 83   979 102 83   979 102 83   979 113 25   979 113 25   979 113 25
+  979 113 25   979 113 25   979 113 25   979 113 25   979 113 25   979 113 33
+  979 113 33   979 113 33   979 113 33   979 113 33   979 113 33   979 113 33
+  979 113 33   979 113 33   979 113 33   979 113 33}
+
+do_execsql_test 5.3.2.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY a NULLS FIRST 
+        RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE GROUP  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} 81 11   {} 81 11   {} 81 11   {} 81 11   {} 81 11   {} 81 11   {} 81 11
+  {} 81 11   {} 81 11   2947 74 10   2947 74 10   2947 74 10   2947 74 10
+  2947 74 10   2947 74 10   2947 74 10   5287 65 9   5287 65 9   5287 65 9
+  5287 65 9   5287 65 9   5287 65 9   5287 65 9   5287 65 9   5287 65 9
+  8400 57 8   8400 57 8   8400 57 8   8400 57 8   8400 57 8   8400 57 8
+  8400 57 8   8400 57 8   9664 46 7   9664 46 7   9664 46 7   9664 46 7
+  9664 46 7   9664 46 7   9664 46 7   9664 46 7   9664 46 7   9664 46 7
+  9664 46 7   10626 41 6   10626 41 6   10626 41 6   10626 41 6   10626 41 6
+  12145 34 5   12145 34 5   12145 34 5   12145 34 5   12145 34 5   12145 34 5
+  12145 34 5   13949 28 4   13949 28 4   13949 28 4   13949 28 4   13949 28 4
+  13949 28 4   15315 15 3   15315 15 3   15315 15 3   15315 15 3   15315 15 3
+  15315 15 3   15315 15 3   15315 15 3   15315 15 3   15315 15 3   15315 15 3
+  15315 15 3   15315 15 3   18796 7 2   18796 7 2   18796 7 2   18796 7 2
+  18796 7 2   18796 7 2   18796 7 2   18796 7 2   21105 1 1   21105 1 1
+  21105 1 1   21105 1 1   21105 1 1   21105 1 1}
+
+do_execsql_test 5.3.3.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  PARTITION BY coalesce(a, '') 
+        RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE GROUP  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0}
+
+do_execsql_test 5.3.3.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  PARTITION BY coalesce(a, '') 
+        RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE GROUP  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1}
+
+do_execsql_test 5.3.4.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY a NULLS FIRST GROUPS 6 PRECEDING   EXCLUDE GROUP  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   870 158 0
+  870 158 0   870 158 0   870 158 0   870 158 0   870 158 0   870 158 0
+  870 158 0   934 158 8   934 158 8   934 158 8   934 158 8   934 158 8
+  934 158 8   934 158 8   934 158 8   934 158 8   934 158 8   934 158 8
+  934 158 8   934 158 8   934 158 21   934 158 21   934 158 21   934 158 21
+  934 158 21   934 158 21   934 158 27   934 158 27   934 158 27   934 158 27
+  934 158 27   934 158 27   934 158 27   959 102 50   959 102 50   959 102 50
+  959 102 50   959 102 50   959 102 50   959 102 50   959 102 50   959 102 50
+  959 102 50   959 102 50   959 102 50   959 102 50   959 102 50   959 102 50
+  959 102 50   959 102 50   959 113 39   959 113 39   959 113 39   959 113 39
+  959 113 39   959 113 39   959 113 39   959 113 39   959 113 39   959 113 39
+  959 113 39   959 158 34   959 158 34   959 158 34   959 158 34   959 158 34
+  979 102 46   979 102 46   979 102 46   979 102 46   979 102 46   979 102 46
+  979 102 46   979 102 47   979 102 47   979 102 47   979 102 47   979 102 47
+  979 102 47   979 102 47   979 102 47   979 102 47}
+
+do_execsql_test 5.3.4.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY a NULLS FIRST GROUPS 6 PRECEDING   EXCLUDE GROUP  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   2050 7 2   2050 7 2
+  2050 7 2   2050 7 2   2050 7 2   2050 7 2   2050 7 2   2050 7 2   4359 15 3
+  4359 15 3   4359 15 3   4359 15 3   4359 15 3   4359 15 3   4359 15 3
+  4359 15 3   4359 15 3   4359 15 3   4359 15 3   4359 15 3   4359 15 3
+  7840 28 4   7840 28 4   7840 28 4   7840 28 4   7840 28 4   7840 28 4
+  9206 34 5   9206 34 5   9206 34 5   9206 34 5   9206 34 5   9206 34 5
+  9206 34 5   10028 74 10   10028 74 10   10028 74 10   10028 74 10
+  10028 74 10   10028 74 10   10028 74 10   10396 65 9   10396 65 9
+  10396 65 9   10396 65 9   10396 65 9   10396 65 9   10396 65 9   10396 65 9
+  10396 65 9   11002 81 11   11002 81 11   11002 81 11   11002 81 11
+  11002 81 11   11002 81 11   11002 81 11   11002 81 11   11002 81 11
+  11010 41 6   11010 41 6   11010 41 6   11010 41 6   11010 41 6   11441 57 8
+  11441 57 8   11441 57 8   11441 57 8   11441 57 8   11441 57 8   11441 57 8
+  11441 57 8   12529 46 7   12529 46 7   12529 46 7   12529 46 7   12529 46 7
+  12529 46 7   12529 46 7   12529 46 7   12529 46 7   12529 46 7   12529 46 7}
+
+do_execsql_test 5.3.5.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS FIRST RANGE BETWEEN 6 PRECEDING AND 7 FOLLOWING   EXCLUDE GROUP  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   158 158 1   160 160 1   160 160 1   223 223 1   224 224 1
+  238 234 2   239 234 2   239 238 2   252 250 2   256 252 2   257 247 4
+  257 247 4   257 250 3   335 330 2   336 330 2   336 335 2   354 354 1
+  354 354 1   355 355 1   398 393 3   398 393 3   399 393 3   399 398 2
+  399 398 2   572 572 1   574 574 1   633 629 2   634 627 3   634 627 3
+  634 627 3   634 629 3   667 667 1   670 667 2   671 667 2   671 670 2
+  671 670 2   711 711 1   711 711 1   716 705 2   726 726 1   730 730 1
+  762 762 1   762 762 1   762 762 1   768 759 3   792 790 2   792 790 2
+  794 786 3   794 786 3   844 839 4   845 839 4   845 839 4   845 840 3
+  845 840 3   934 934 1   934 934 1   934 934 1   938 929 3   959 959 1
+  963 963 1}
+
+do_execsql_test 5.3.5.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS FIRST RANGE BETWEEN 6 PRECEDING AND 7 FOLLOWING   EXCLUDE GROUP  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} 1 1   {} 2 2   {} 2 2   {} 4 3   {} 5 4   {} 6 5   {} 6 5   {} 8 6
+  {} 9 7   {} 10 8   {} 14 12   {} 15 13   {} 19 17   {} 20 18   {} 21 19
+  {} 23 21   {} 25 23   {} 27 25   {} 27 25   {} 34 29   {} 35 30   {} 36 31
+  {} 37 32   {} 38 33   {} 38 33   {} 40 34   {} 41 35   {} 42 36   {} 43 37
+  {} 43 37   {} 50 42   {} 56 47   {} 60 51   {} 61 52   {} 62 53   {} 64 55
+  {} 64 55   {} 66 56   {} 67 57   {} 68 58   {} 69 59   {} 70 60   {} 71 61
+  {} 72 62   {} 78 67   {} 78 67   {} 78 67   {} 81 68   {} 82 69   {} 83 70
+  {} 85 72   {} 85 72   {} 89 75   223 11 9   239 12 10   239 13 11
+  257 18 16   335 22 20   335 24 22   504 16 14   504 17 15   671 52 44
+  671 52 44   705 58 49   710 26 24   711 57 48   711 59 50   759 63 54
+  786 32 28   786 32 28   798 29 26   798 29 26   845 73 63   845 73 63
+  929 84 71   959 88 74   963 87 73   1260 46 39   1260 46 39   1334 51 43
+  1334 55 46   1584 31 27   1678 77 66   1885 48 40   1891 45 38   1891 49 41
+  2005 54 45   2523 75 64   2523 76 65}
+
+do_execsql_test 5.3.6.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS FIRST RANGE BETWEEN 0 PRECEDING AND 0 FOLLOWING   EXCLUDE GROUP  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0}
+
+do_execsql_test 5.3.6.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS FIRST RANGE BETWEEN 0 PRECEDING AND 0 FOLLOWING   EXCLUDE GROUP  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} 1 1   {} 2 2   {} 2 2   {} 4 3   {} 5 4   {} 6 5   {} 6 5   {} 8 6
+  {} 9 7   {} 10 8   {} 11 9   {} 12 10   {} 13 11   {} 14 12   {} 15 13
+  {} 16 14   {} 17 15   {} 18 16   {} 19 17   {} 20 18   {} 21 19   {} 22 20
+  {} 23 21   {} 24 22   {} 25 23   {} 26 24   {} 27 25   {} 27 25   {} 29 26
+  {} 29 26   {} 31 27   {} 32 28   {} 32 28   {} 34 29   {} 35 30   {} 36 31
+  {} 37 32   {} 38 33   {} 38 33   {} 40 34   {} 41 35   {} 42 36   {} 43 37
+  {} 43 37   {} 45 38   {} 46 39   {} 46 39   {} 48 40   {} 49 41   {} 50 42
+  {} 51 43   {} 52 44   {} 52 44   {} 54 45   {} 55 46   {} 56 47   {} 57 48
+  {} 58 49   {} 59 50   {} 60 51   {} 61 52   {} 62 53   {} 63 54   {} 64 55
+  {} 64 55   {} 66 56   {} 67 57   {} 68 58   {} 69 59   {} 70 60   {} 71 61
+  {} 72 62   {} 73 63   {} 73 63   {} 75 64   {} 76 65   {} 77 66   {} 78 67
+  {} 78 67   {} 78 67   {} 81 68   {} 82 69   {} 83 70   {} 84 71   {} 85 72
+  {} 85 72   {} 87 73   {} 88 74   {} 89 75}
+
+do_execsql_test 5.3.7.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS FIRST, b NULLS FIRST, a NULLS FIRST
+        ROWS BETWEEN 6 PRECEDING AND UNBOUNDED FOLLOWING   EXCLUDE GROUP  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {963 929 6   979 102 82   979 102 82   979 102 82   979 102 82   979 102 82
+  979 102 83   979 113 80   979 113 81   979 113 82   979 133 79   979 148 78
+  979 158 76   979 158 77   979 160 76   979 208 75   979 223 74   979 224 73
+  979 234 72   979 238 71   979 239 70   979 247 69   979 250 68   979 252 67
+  979 256 66   979 257 65   979 295 64   979 309 64   979 330 62   979 335 61
+  979 336 60   979 346 59   979 354 59   979 355 57   979 355 57   979 393 55
+  979 393 56   979 398 54   979 399 53   979 399 53   979 412 52   979 421 51
+  979 430 50   979 443 49   979 480 47   979 480 48   979 572 47   979 574 45
+  979 607 44   979 618 42   979 618 43   979 627 41   979 629 40   979 629 41
+  979 633 39   979 634 38   979 652 37   979 660 36   979 667 35   979 667 35
+  979 670 34   979 671 33   979 683 32   979 705 31   979 711 30   979 716 29
+  979 726 28   979 730 27   979 759 26   979 762 25   979 768 23   979 768 24
+  979 777 22   979 786 21   979 790 20   979 792 19   979 794 18   979 805 17
+  979 822 17   979 839 14   979 839 15   979 840 13   979 844 12   979 845 11
+  979 870 9   979 870 10   979 870 10   979 899 8   979 911 7}
+
+do_execsql_test 5.3.7.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS FIRST, b NULLS FIRST, a NULLS FIRST
+        ROWS BETWEEN 6 PRECEDING AND UNBOUNDED FOLLOWING   EXCLUDE GROUP  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {2851 89 89   3778 88 88   4681 87 87   5556 83 83   5574 82 82   5586 81 81
+  5640 84 84   5640 85 85   5640 86 86   7324 80 80   8123 77 77   8129 73 73
+  8129 74 74   8163 78 78   8163 79 79   8940 71 71   8968 75 75   8968 76 76
+  9727 66 66   9745 69 69   9745 70 70   9745 72 72   10504 65 65
+  10504 67 67   10504 68 68   11215 64 64   11844 62 62   11920 63 63
+  13274 60 60   13274 61 61   13897 58 58   13903 57 57   13925 56 56
+  13937 55 55   13941 59 59   15203 53 53   15241 54 54   15832 52 52
+  17100 48 48   17104 46 46   17104 47 47   17106 45 45   17126 49 49
+  17126 50 50   17126 51 51   17569 42 42   17733 44 44   18176 43 43
+  18597 40 40   18597 41 41   18952 37 37   18996 39 39   19395 38 38
+  19760 35 35   19788 36 36   20492 32 32   20492 33 33   20498 30 30
+  20536 34 34   20833 29 29   20871 28 28   20891 31 31   21180 27 27
+  21752 23 23   21830 26 26   22025 21 21   22087 22 22   22087 24 24
+  22087 25 25   22278 20 20   22316 19 19   22549 15 15   22557 14 14
+  22573 17 17   22573 18 18   22706 10 10   22796 11 11   22796 12 12
+  22796 13 13   22796 16 16   23022 4 4   23042 2 2   23042 3 3   23042 9 9
+  23155 1 1   23155 5 5   23155 6 6   23155 7 7   23155 8 8}
+
+do_execsql_test 5.3.8.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE GROUP  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0}
+
+do_execsql_test 5.3.8.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE GROUP  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1}
+
+do_execsql_test 5.3.9.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY a NULLS LAST 
+        RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE GROUP  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   870 158 0
+  870 158 0   870 158 0   870 158 0   870 158 0   870 158 0   870 158 0
+  870 158 0   870 158 0   899 113 9   899 113 9   899 113 9   899 113 9
+  899 113 9   899 113 9   899 113 9   899 113 16   899 113 16   899 113 16
+  899 113 16   899 113 16   899 113 16   899 113 16   899 113 16   899 113 16
+  979 102 44   979 102 44   979 102 44   979 102 44   979 102 44   979 102 49
+  979 102 49   979 102 49   979 102 49   979 102 49   979 102 49   979 102 49
+  979 102 56   979 102 56   979 102 56   979 102 56   979 102 56   979 102 56
+  979 102 62   979 102 62   979 102 62   979 102 62   979 102 62   979 102 62
+  979 102 62   979 102 62   979 102 62   979 102 62   979 102 62   979 102 62
+  979 102 62   979 102 75   979 102 75   979 102 75   979 102 75   979 102 75
+  979 102 75   979 102 75   979 102 75   979 113 25   979 113 25   979 113 25
+  979 113 25   979 113 25   979 113 25   979 113 25   979 113 25   979 113 33
+  979 113 33   979 113 33   979 113 33   979 113 33   979 113 33   979 113 33
+  979 113 33   979 113 33   979 113 33   979 113 33}
+
+do_execsql_test 5.3.9.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY a NULLS LAST 
+        RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE GROUP  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} 84 11   {} 84 11   {} 84 11   {} 84 11   {} 84 11   {} 84 11
+  2050 75 10   2050 75 10   2050 75 10   2050 75 10   2050 75 10   2050 75 10
+  2050 75 10   2050 75 10   2050 75 10   4997 68 9   4997 68 9   4997 68 9
+  4997 68 9   4997 68 9   4997 68 9   4997 68 9   7337 59 8   7337 59 8
+  7337 59 8   7337 59 8   7337 59 8   7337 59 8   7337 59 8   7337 59 8
+  7337 59 8   10450 51 7   10450 51 7   10450 51 7   10450 51 7   10450 51 7
+  10450 51 7   10450 51 7   10450 51 7   11714 40 6   11714 40 6   11714 40 6
+  11714 40 6   11714 40 6   11714 40 6   11714 40 6   11714 40 6   11714 40 6
+  11714 40 6   11714 40 6   12676 35 5   12676 35 5   12676 35 5   12676 35 5
+  12676 35 5   14195 28 4   14195 28 4   14195 28 4   14195 28 4   14195 28 4
+  14195 28 4   14195 28 4   15999 22 3   15999 22 3   15999 22 3   15999 22 3
+  15999 22 3   15999 22 3   17365 9 2   17365 9 2   17365 9 2   17365 9 2
+  17365 9 2   17365 9 2   17365 9 2   17365 9 2   17365 9 2   17365 9 2
+  17365 9 2   17365 9 2   17365 9 2   20846 1 1   20846 1 1   20846 1 1
+  20846 1 1   20846 1 1   20846 1 1   20846 1 1   20846 1 1}
+
+do_execsql_test 5.3.10.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  PARTITION BY coalesce(a, '') 
+        RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE GROUP  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0}
+
+do_execsql_test 5.3.10.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  PARTITION BY coalesce(a, '') 
+        RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE GROUP  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1}
+
+do_execsql_test 5.3.11.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY a NULLS LAST GROUPS 6 PRECEDING   EXCLUDE GROUP  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   934 158 27   934 158 27   934 158 27   934 158 27   934 158 27
+  934 158 27   934 158 27   934 223 8   934 223 8   934 223 8   934 223 8
+  934 223 8   934 223 8   934 223 8   934 223 8   934 223 8   934 223 8
+  934 223 8   934 223 8   934 223 8   934 223 21   934 223 21   934 223 21
+  934 223 21   934 223 21   934 223 21   959 102 50   959 102 50   959 102 50
+  959 102 50   959 102 50   959 102 50   959 102 50   959 102 50   959 102 50
+  959 102 50   959 102 50   959 102 50   959 102 50   959 102 50   959 102 50
+  959 102 50   959 102 50   959 113 39   959 113 39   959 113 39   959 113 39
+  959 113 39   959 113 39   959 113 39   959 113 39   959 113 39   959 113 39
+  959 113 39   959 158 34   959 158 34   959 158 34   959 158 34   959 158 34
+  979 102 46   979 102 46   979 102 46   979 102 46   979 102 46   979 102 46
+  979 102 46   979 102 47   979 102 47   979 102 47   979 102 47   979 102 47
+  979 102 47   979 102 47   979 102 47   979 102 47   979 102 49   979 102 49
+  979 102 49   979 102 49   979 102 49   979 102 49}
+
+do_execsql_test 5.3.11.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY a NULLS LAST GROUPS 6 PRECEDING   EXCLUDE GROUP  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  2309 9 2   2309 9 2   2309 9 2   2309 9 2   2309 9 2   2309 9 2   2309 9 2
+  2309 9 2   2309 9 2   2309 9 2   2309 9 2   2309 9 2   2309 9 2   5790 22 3
+  5790 22 3   5790 22 3   5790 22 3   5790 22 3   5790 22 3   7156 28 4
+  7156 28 4   7156 28 4   7156 28 4   7156 28 4   7156 28 4   7156 28 4
+  8960 35 5   8960 35 5   8960 35 5   8960 35 5   8960 35 5   10028 68 9
+  10028 68 9   10028 68 9   10028 68 9   10028 68 9   10028 68 9   10028 68 9
+  10396 59 8   10396 59 8   10396 59 8   10396 59 8   10396 59 8   10396 59 8
+  10396 59 8   10396 59 8   10396 59 8   10479 40 6   10479 40 6   10479 40 6
+  10479 40 6   10479 40 6   10479 40 6   10479 40 6   10479 40 6   10479 40 6
+  10479 40 6   10479 40 6   11002 75 10   11002 75 10   11002 75 10
+  11002 75 10   11002 75 10   11002 75 10   11002 75 10   11002 75 10
+  11002 75 10   11441 51 7   11441 51 7   11441 51 7   11441 51 7
+  11441 51 7   11441 51 7   11441 51 7   11441 51 7   12145 84 11
+  12145 84 11   12145 84 11   12145 84 11   12145 84 11   12145 84 11}
+
+do_execsql_test 5.3.12.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS LAST RANGE BETWEEN 6 PRECEDING AND 7 FOLLOWING   EXCLUDE GROUP  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   158 158 1   160 160 1   160 160 1   223 223 1   224 224 1
+  238 234 2   239 234 2   239 238 2   252 250 2   256 252 2   257 247 4
+  257 247 4   257 250 3   335 330 2   336 330 2   336 335 2   354 354 1
+  354 354 1   355 355 1   398 393 3   398 393 3   399 393 3   399 398 2
+  399 398 2   572 572 1   574 574 1   633 629 2   634 627 3   634 627 3
+  634 627 3   634 629 3   667 667 1   670 667 2   671 667 2   671 670 2
+  671 670 2   711 711 1   711 711 1   716 705 2   726 726 1   730 730 1
+  762 762 1   762 762 1   762 762 1   768 759 3   792 790 2   792 790 2
+  794 786 3   794 786 3   844 839 4   845 839 4   845 839 4   845 840 3
+  845 840 3   934 934 1   934 934 1   934 934 1   938 929 3   959 959 1
+  963 963 1}
+
+do_execsql_test 5.3.12.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS LAST RANGE BETWEEN 6 PRECEDING AND 7 FOLLOWING   EXCLUDE GROUP  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} 1 1   {} 2 2   {} 2 2   {} 4 3   {} 5 4   {} 6 5   {} 6 5   {} 8 6
+  {} 9 7   {} 10 8   {} 14 12   {} 15 13   {} 19 17   {} 20 18   {} 21 19
+  {} 23 21   {} 25 23   {} 27 25   {} 27 25   {} 34 29   {} 35 30   {} 36 31
+  {} 37 32   {} 38 33   {} 38 33   {} 40 34   {} 41 35   {} 42 36   {} 43 37
+  {} 43 37   {} 50 42   {} 56 47   {} 60 51   {} 61 52   {} 62 53   {} 64 55
+  {} 64 55   {} 66 56   {} 67 57   {} 68 58   {} 69 59   {} 70 60   {} 71 61
+  {} 72 62   {} 78 67   {} 78 67   {} 78 67   {} 81 68   {} 82 69   {} 83 70
+  {} 85 72   {} 85 72   {} 89 75   223 11 9   239 12 10   239 13 11
+  257 18 16   335 22 20   335 24 22   504 16 14   504 17 15   671 52 44
+  671 52 44   705 58 49   710 26 24   711 57 48   711 59 50   759 63 54
+  786 32 28   786 32 28   798 29 26   798 29 26   845 73 63   845 73 63
+  929 84 71   959 88 74   963 87 73   1260 46 39   1260 46 39   1334 51 43
+  1334 55 46   1584 31 27   1678 77 66   1885 48 40   1891 45 38   1891 49 41
+  2005 54 45   2523 75 64   2523 76 65}
+
+do_execsql_test 5.3.13.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS LAST RANGE BETWEEN 0 PRECEDING AND 0 FOLLOWING   EXCLUDE GROUP  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0
+  {} {} 0   {} {} 0   {} {} 0   {} {} 0   {} {} 0}
+
+do_execsql_test 5.3.13.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS LAST RANGE BETWEEN 0 PRECEDING AND 0 FOLLOWING   EXCLUDE GROUP  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} 1 1   {} 2 2   {} 2 2   {} 4 3   {} 5 4   {} 6 5   {} 6 5   {} 8 6
+  {} 9 7   {} 10 8   {} 11 9   {} 12 10   {} 13 11   {} 14 12   {} 15 13
+  {} 16 14   {} 17 15   {} 18 16   {} 19 17   {} 20 18   {} 21 19   {} 22 20
+  {} 23 21   {} 24 22   {} 25 23   {} 26 24   {} 27 25   {} 27 25   {} 29 26
+  {} 29 26   {} 31 27   {} 32 28   {} 32 28   {} 34 29   {} 35 30   {} 36 31
+  {} 37 32   {} 38 33   {} 38 33   {} 40 34   {} 41 35   {} 42 36   {} 43 37
+  {} 43 37   {} 45 38   {} 46 39   {} 46 39   {} 48 40   {} 49 41   {} 50 42
+  {} 51 43   {} 52 44   {} 52 44   {} 54 45   {} 55 46   {} 56 47   {} 57 48
+  {} 58 49   {} 59 50   {} 60 51   {} 61 52   {} 62 53   {} 63 54   {} 64 55
+  {} 64 55   {} 66 56   {} 67 57   {} 68 58   {} 69 59   {} 70 60   {} 71 61
+  {} 72 62   {} 73 63   {} 73 63   {} 75 64   {} 76 65   {} 77 66   {} 78 67
+  {} 78 67   {} 78 67   {} 81 68   {} 82 69   {} 83 70   {} 84 71   {} 85 72
+  {} 85 72   {} 87 73   {} 88 74   {} 89 75}
+
+do_execsql_test 5.3.14.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS LAST, b NULLS LAST, a NULLS LAST
+        ROWS BETWEEN 6 PRECEDING AND UNBOUNDED FOLLOWING   EXCLUDE GROUP  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {963 929 6   979 102 82   979 102 82   979 102 82   979 102 82   979 102 82
+  979 102 83   979 113 80   979 113 81   979 113 82   979 133 79   979 148 78
+  979 158 76   979 158 77   979 160 76   979 208 75   979 223 74   979 224 73
+  979 234 72   979 238 71   979 239 70   979 247 69   979 250 68   979 252 67
+  979 256 66   979 257 65   979 295 64   979 309 63   979 330 63   979 335 61
+  979 336 60   979 346 59   979 354 58   979 355 56   979 355 58   979 393 55
+  979 393 56   979 398 54   979 399 52   979 399 53   979 412 52   979 421 51
+  979 430 50   979 443 49   979 480 47   979 480 48   979 572 46   979 574 46
+  979 607 44   979 618 42   979 618 43   979 627 41   979 629 40   979 629 40
+  979 633 39   979 634 38   979 652 37   979 660 36   979 667 34   979 667 35
+  979 670 34   979 671 33   979 683 32   979 705 31   979 711 30   979 716 29
+  979 726 28   979 730 27   979 759 26   979 762 25   979 768 23   979 768 24
+  979 777 22   979 786 21   979 790 20   979 792 19   979 794 18   979 805 17
+  979 822 16   979 839 15   979 839 15   979 840 13   979 844 12   979 845 11
+  979 870 8   979 870 9   979 870 10   979 899 8   979 911 7}
+
+do_execsql_test 5.3.14.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS LAST, b NULLS LAST, a NULLS LAST
+        ROWS BETWEEN 6 PRECEDING AND UNBOUNDED FOLLOWING   EXCLUDE GROUP  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {2851 89 89   3778 88 88   4681 87 87   5556 83 83   5574 82 82   5586 81 81
+  5640 84 84   5640 85 85   5640 86 86   7324 80 80   8123 77 77   8129 73 73
+  8129 74 74   8163 78 78   8163 79 79   8940 71 71   8968 75 75   8968 76 76
+  9727 66 66   9745 69 69   9745 70 70   9745 72 72   10504 65 65
+  10504 67 67   10504 68 68   11215 64 64   11844 62 62   11920 63 63
+  13274 60 60   13274 61 61   13897 58 58   13903 57 57   13925 56 56
+  13937 55 55   13941 59 59   15203 53 53   15241 54 54   15832 52 52
+  17100 48 48   17104 46 46   17104 47 47   17106 45 45   17126 49 49
+  17126 50 50   17126 51 51   17569 42 42   17733 44 44   18176 43 43
+  18597 40 40   18597 41 41   18952 37 37   18996 39 39   19395 38 38
+  19760 35 35   19788 36 36   20492 32 32   20492 33 33   20498 30 30
+  20536 34 34   20833 29 29   20871 28 28   20891 31 31   21180 27 27
+  21752 23 23   21830 26 26   22025 21 21   22087 22 22   22087 24 24
+  22087 25 25   22278 20 20   22316 19 19   22549 15 15   22557 14 14
+  22573 17 17   22573 18 18   22706 10 10   22796 11 11   22796 12 12
+  22796 13 13   22796 16 16   23022 4 4   23042 2 2   23042 3 3   23042 9 9
+  23155 1 1   23155 5 5   23155 6 6   23155 7 7   23155 8 8}
+
+do_execsql_test 5.4.1.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE TIES  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {102 102 1   113 113 1   113 113 1   133 133 1   148 148 1   158 158 0
+  158 158 1   160 160 1   208 208 1   223 223 1   224 224 1   234 234 1
+  238 238 1   239 239 1   247 247 1   250 250 1   252 252 1   256 256 1
+  257 257 1   295 295 1   309 309 1   330 330 1   335 335 1   336 336 1
+  346 346 1   354 354 1   355 355 0   355 355 1   393 393 1   393 393 1
+  398 398 1   399 399 0   399 399 1   412 412 1   421 421 1   430 430 1
+  443 443 1   480 480 1   480 480 1   572 572 1   574 574 1   607 607 1
+  618 618 1   618 618 1   627 627 1   629 629 0   629 629 1   633 633 1
+  634 634 1   652 652 1   660 660 1   667 667 0   667 667 1   670 670 1
+  671 671 1   683 683 1   705 705 1   711 711 1   716 716 1   726 726 1
+  730 730 1   759 759 1   762 762 1   768 768 1   768 768 1   777 777 1
+  786 786 1   790 790 1   792 792 1   794 794 1   805 805 1   822 822 1
+  839 839 1   839 839 1   840 840 1   844 844 1   845 845 1   870 870 0
+  870 870 1   870 870 1   899 899 1   911 911 1   929 929 1   934 934 1
+  938 938 1   938 938 1   959 959 1   963 963 1   979 979 1}
+
+do_execsql_test 5.4.1.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE TIES  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  113 1 1   113 1 1   133 1 1   223 1 1   239 1 1   247 1 1   257 1 1
+  295 1 1   309 1 1   335 1 1   355 1 1   355 1 1   393 1 1   393 1 1
+  399 1 1   399 1 1   421 1 1   443 1 1   607 1 1   627 1 1   629 1 1
+  629 1 1   633 1 1   667 1 1   667 1 1   671 1 1   683 1 1   705 1 1
+  711 1 1   759 1 1   777 1 1   805 1 1   839 1 1   839 1 1   845 1 1
+  899 1 1   911 1 1   929 1 1   959 1 1   963 1 1   979 1 1}
+
+do_execsql_test 5.4.2.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY a NULLS FIRST 
+        RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE TIES  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {113 113 1   234 234 1   257 257 1   336 336 1   354 354 1   768 768 1
+  839 839 1   839 839 1   899 113 10   899 113 10   899 113 10   899 113 10
+  899 113 10   899 113 10   899 113 10   899 113 17   899 113 17   899 113 17
+  899 113 17   899 113 17   899 113 17   899 113 17   899 899 1   963 113 17
+  979 102 34   979 102 45   979 102 45   979 102 45   979 102 45   979 102 45
+  979 102 50   979 102 50   979 102 50   979 102 50   979 102 50   979 102 50
+  979 102 50   979 102 57   979 102 57   979 102 57   979 102 57   979 102 57
+  979 102 57   979 102 63   979 102 63   979 102 63   979 102 63   979 102 63
+  979 102 63   979 102 63   979 102 63   979 102 63   979 102 63   979 102 63
+  979 102 63   979 102 63   979 102 76   979 102 76   979 102 76   979 102 76
+  979 102 76   979 102 76   979 102 76   979 102 76   979 102 83   979 102 83
+  979 102 83   979 102 83   979 102 83   979 102 83   979 113 17   979 113 26
+  979 113 26   979 113 26   979 113 26   979 113 26   979 113 26   979 113 26
+  979 113 26   979 113 34   979 113 34   979 113 34   979 113 34   979 113 34
+  979 113 34   979 113 34   979 113 34   979 113 34   979 113 34}
+
+do_execsql_test 5.4.2.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY a NULLS FIRST 
+        RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE TIES  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} 81 11   {} 81 11   {} 81 11   {} 81 11   113 81 11   257 81 11
+  839 81 11   839 81 11   899 81 11   2947 74 10   2947 74 10   2947 74 10
+  3368 74 10   3390 74 10   3618 74 10   3752 74 10   5287 65 9   5287 65 9
+  5287 65 9   5287 65 9   5420 65 9   5642 65 9   5970 65 9   6250 65 9
+  6266 65 9   8400 57 8   8400 57 8   8400 57 8   8400 57 8   8400 57 8
+  8400 57 8   8735 57 8   9329 57 8   9664 46 7   9664 46 7   9664 46 7
+  9664 46 7   9664 46 7   9664 46 7   9664 46 7   9664 46 7   9664 46 7
+  9959 46 7   10331 46 7   10626 41 6   10626 41 6   10739 41 6   11255 41 6
+  11403 41 6   12145 34 5   12145 34 5   12145 34 5   12145 34 5   12145 34 5
+  12990 34 5   13104 34 5   13949 28 4   13949 28 4   13949 28 4   13949 28 4
+  14556 28 4   14708 28 4   15315 15 3   15315 15 3   15315 15 3   15315 15 3
+  15315 15 3   15315 15 3   15562 15 3   15708 15 3   15708 15 3   15714 15 3
+  15948 15 3   16020 15 3   16026 15 3   18796 7 2   18796 7 2   18796 7 2
+  19019 7 2   19035 7 2   19105 7 2   19423 7 2   19707 7 2   21105 1 1
+  21105 1 1   21460 1 1   21504 1 1   21734 1 1   21772 1 1}
+
+do_execsql_test 5.4.3.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  PARTITION BY coalesce(a, '') 
+        RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE TIES  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {102 102 1   113 113 1   113 113 1   133 133 1   148 148 1   158 158 0
+  158 158 1   160 160 1   208 208 1   223 223 1   224 224 1   234 234 1
+  238 238 1   239 239 1   247 247 1   250 250 1   252 252 1   256 256 1
+  257 257 1   295 295 1   309 309 1   330 330 1   335 335 1   336 336 1
+  346 346 1   354 354 1   355 355 0   355 355 1   393 393 1   393 393 1
+  398 398 1   399 399 0   399 399 1   412 412 1   421 421 1   430 430 1
+  443 443 1   480 480 1   480 480 1   572 572 1   574 574 1   607 607 1
+  618 618 1   618 618 1   627 627 1   629 629 0   629 629 1   633 633 1
+  634 634 1   652 652 1   660 660 1   667 667 0   667 667 1   670 670 1
+  671 671 1   683 683 1   705 705 1   711 711 1   716 716 1   726 726 1
+  730 730 1   759 759 1   762 762 1   768 768 1   768 768 1   777 777 1
+  786 786 1   790 790 1   792 792 1   794 794 1   805 805 1   822 822 1
+  839 839 1   839 839 1   840 840 1   844 844 1   845 845 1   870 870 0
+  870 870 1   870 870 1   899 899 1   911 911 1   929 929 1   934 934 1
+  938 938 1   938 938 1   959 959 1   963 963 1   979 979 1}
+
+do_execsql_test 5.4.3.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  PARTITION BY coalesce(a, '') 
+        RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE TIES  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  113 1 1   113 1 1   133 1 1   223 1 1   239 1 1   247 1 1   257 1 1
+  295 1 1   309 1 1   335 1 1   355 1 1   355 1 1   393 1 1   393 1 1
+  399 1 1   399 1 1   421 1 1   443 1 1   607 1 1   627 1 1   629 1 1
+  629 1 1   633 1 1   667 1 1   667 1 1   671 1 1   683 1 1   705 1 1
+  711 1 1   759 1 1   777 1 1   805 1 1   839 1 1   839 1 1   845 1 1
+  899 1 1   911 1 1   929 1 1   959 1 1   963 1 1   979 1 1}
+
+do_execsql_test 5.4.4.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY a NULLS FIRST GROUPS 6 PRECEDING   EXCLUDE TIES  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {158 158 0   355 355 0   399 399 0   629 629 0   667 667 0   870 158 1
+  870 158 1   870 158 1   870 158 1   870 158 1   870 158 1   870 870 0
+  911 158 1   934 158 1   934 158 9   934 158 9   934 158 9   934 158 9
+  934 158 9   934 158 9   934 158 9   934 158 9   934 158 9   934 158 9
+  934 158 9   934 158 9   934 158 9   934 158 22   934 158 22   934 158 22
+  934 158 22   934 158 22   934 158 22   934 158 28   934 158 28   934 158 28
+  934 158 28   934 158 28   934 158 28   959 102 40   959 102 51   959 102 51
+  959 102 51   959 102 51   959 102 51   959 102 51   959 102 51   959 102 51
+  959 102 51   959 102 51   959 102 51   959 102 51   959 102 51   959 102 51
+  959 102 51   959 113 35   959 113 40   959 113 40   959 113 40   959 113 40
+  959 113 40   959 113 40   959 113 40   959 113 40   959 113 40   959 113 40
+  959 158 28   959 158 35   959 158 35   959 158 35   959 158 35   963 102 51
+  979 102 47   979 102 47   979 102 47   979 102 47   979 102 47   979 102 47
+  979 102 47   979 102 48   979 102 48   979 102 48   979 102 48   979 102 48
+  979 102 48   979 102 48   979 102 48   979 102 48   979 102 51}
+
+do_execsql_test 5.4.4.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY a NULLS FIRST GROUPS 6 PRECEDING   EXCLUDE TIES  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} 1 1   {} 1 1   355 1 1   399 1 1   629 1 1   667 1 1   2050 7 2
+  2050 7 2   2050 7 2   2273 7 2   2289 7 2   2359 7 2   2677 7 2   2961 7 2
+  4359 15 3   4359 15 3   4359 15 3   4359 15 3   4359 15 3   4359 15 3
+  4606 15 3   4752 15 3   4752 15 3   4758 15 3   4992 15 3   5064 15 3
+  5070 15 3   7840 28 4   7840 28 4   7840 28 4   7840 28 4   8447 28 4
+  8599 28 4   9206 34 5   9206 34 5   9206 34 5   9206 34 5   9206 34 5
+  10028 74 10   10028 74 10   10028 74 10   10051 34 5   10165 34 5
+  10396 65 9   10396 65 9   10396 65 9   10396 65 9   10449 74 10
+  10471 74 10   10529 65 9   10699 74 10   10751 65 9   10833 74 10
+  11002 81 11   11002 81 11   11002 81 11   11002 81 11   11010 41 6
+  11010 41 6   11079 65 9   11115 81 11   11123 41 6   11259 81 11
+  11359 65 9   11375 65 9   11441 57 8   11441 57 8   11441 57 8   11441 57 8
+  11441 57 8   11441 57 8   11639 41 6   11776 57 8   11787 41 6
+  11841 81 11   11841 81 11   11901 81 11   12370 57 8   12529 46 7
+  12529 46 7   12529 46 7   12529 46 7   12529 46 7   12529 46 7   12529 46 7
+  12529 46 7   12529 46 7   12824 46 7   13196 46 7}
+
+do_execsql_test 5.4.5.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS FIRST RANGE BETWEEN 6 PRECEDING AND 7 FOLLOWING   EXCLUDE TIES  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {102 102 1   113 113 1   113 113 1   133 133 1   148 148 1   160 158 1
+  160 158 2   160 158 2   208 208 1   224 223 2   224 223 2   239 234 3
+  239 234 3   239 234 3   252 247 3   257 247 5   257 247 5   257 250 4
+  257 252 3   295 295 1   309 309 1   336 330 3   336 330 3   336 330 3
+  346 346 1   355 354 1   355 354 2   355 354 2   399 393 3   399 393 3
+  399 393 3   399 393 4   399 393 4   412 412 1   421 421 1   430 430 1
+  443 443 1   480 480 1   480 480 1   574 572 2   574 572 2   607 607 1
+  618 618 1   618 618 1   634 627 3   634 627 4   634 627 4   634 627 4
+  634 629 3   652 652 1   667 660 2   671 667 2   671 667 3   671 667 3
+  671 667 3   683 683 1   711 705 2   716 705 3   716 711 2   730 726 2
+  730 726 2   762 759 2   768 759 4   768 762 2   768 762 2   777 777 1
+  792 786 3   794 786 4   794 786 4   794 790 3   805 805 1   822 822 1
+  845 839 4   845 839 4   845 839 5   845 839 5   845 839 5   870 870 0
+  870 870 1   870 870 1   899 899 1   911 911 1   934 929 2   938 929 4
+  938 934 2   938 934 2   963 959 2   963 959 2   979 979 1}
+
+do_execsql_test 5.4.5.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS FIRST RANGE BETWEEN 6 PRECEDING AND 7 FOLLOWING   EXCLUDE TIES  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} 1 1   {} 5 4   {} 6 5   {} 6 5   {} 8 6   {} 9 7   {} 25 23   {} 34 29
+  {} 36 31   {} 38 33   {} 38 33   {} 40 34   {} 41 35   {} 43 37   {} 43 37
+  {} 50 42   {} 60 51   {} 61 52   {} 64 55   {} 64 55   {} 67 57   {} 68 58
+  {} 69 59   {} 70 60   {} 72 62   {} 78 67   {} 78 67   {} 78 67   {} 85 72
+  {} 85 72   113 2 2   113 2 2   133 4 3   223 10 8   223 11 9   239 12 10
+  239 13 11   239 14 12   247 15 13   257 18 16   257 19 17   295 20 18
+  309 21 19   335 22 20   335 23 21   335 24 22   355 27 25   355 27 25
+  421 35 30   443 37 32   504 16 14   504 17 15   607 42 36   683 56 47
+  710 26 24   711 59 50   759 62 53   759 63 54   777 66 56   805 71 61
+  899 81 68   911 82 69   929 83 70   929 84 71   979 89 75   1185 32 28
+  1185 32 28   1191 29 26   1191 29 26   1334 51 43   1338 52 44   1338 52 44
+  1416 57 48   1416 58 49   1584 31 27   1684 73 63   1684 73 63   1889 46 39
+  1889 46 39   1891 49 41   1922 87 73   1922 88 74   2005 54 45   2005 55 46
+  2518 45 38   2518 48 40   2523 75 64   2523 76 65   2523 77 66}
+
+do_execsql_test 5.4.6.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS FIRST RANGE BETWEEN 0 PRECEDING AND 0 FOLLOWING   EXCLUDE TIES  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {102 102 1   113 113 1   113 113 1   133 133 1   148 148 1   158 158 0
+  158 158 1   160 160 1   208 208 1   223 223 1   224 224 1   234 234 1
+  238 238 1   239 239 1   247 247 1   250 250 1   252 252 1   256 256 1
+  257 257 1   295 295 1   309 309 1   330 330 1   335 335 1   336 336 1
+  346 346 1   354 354 1   355 355 0   355 355 1   393 393 1   393 393 1
+  398 398 1   399 399 0   399 399 1   412 412 1   421 421 1   430 430 1
+  443 443 1   480 480 1   480 480 1   572 572 1   574 574 1   607 607 1
+  618 618 1   618 618 1   627 627 1   629 629 0   629 629 1   633 633 1
+  634 634 1   652 652 1   660 660 1   667 667 0   667 667 1   670 670 1
+  671 671 1   683 683 1   705 705 1   711 711 1   716 716 1   726 726 1
+  730 730 1   759 759 1   762 762 1   768 768 1   768 768 1   777 777 1
+  786 786 1   790 790 1   792 792 1   794 794 1   805 805 1   822 822 1
+  839 839 1   839 839 1   840 840 1   844 844 1   845 845 1   870 870 0
+  870 870 1   870 870 1   899 899 1   911 911 1   929 929 1   934 934 1
+  938 938 1   938 938 1   959 959 1   963 963 1   979 979 1}
+
+do_execsql_test 5.4.6.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS FIRST RANGE BETWEEN 0 PRECEDING AND 0 FOLLOWING   EXCLUDE TIES  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} 1 1   {} 5 4   {} 6 5   {} 6 5   {} 8 6   {} 9 7   {} 11 9   {} 12 10
+  {} 13 11   {} 16 14   {} 17 15   {} 18 16   {} 22 20   {} 24 22   {} 25 23
+  {} 26 24   {} 31 27   {} 34 29   {} 36 31   {} 38 33   {} 38 33   {} 40 34
+  {} 41 35   {} 43 37   {} 43 37   {} 49 41   {} 50 42   {} 51 43   {} 54 45
+  {} 59 50   {} 60 51   {} 61 52   {} 63 54   {} 64 55   {} 64 55   {} 67 57
+  {} 68 58   {} 69 59   {} 70 60   {} 72 62   {} 75 64   {} 76 65   {} 78 67
+  {} 78 67   {} 78 67   {} 84 71   {} 85 72   {} 85 72   113 2 2   113 2 2
+  133 4 3   223 10 8   239 14 12   247 15 13   257 19 17   295 20 18
+  309 21 19   335 23 21   355 27 25   355 27 25   393 29 26   393 29 26
+  399 32 28   399 32 28   421 35 30   443 37 32   607 42 36   627 45 38
+  629 46 39   629 46 39   633 48 40   667 52 44   667 52 44   671 55 46
+  683 56 47   705 57 48   711 58 49   759 62 53   777 66 56   805 71 61
+  839 73 63   839 73 63   845 77 66   899 81 68   911 82 69   929 83 70
+  959 87 73   963 88 74   979 89 75}
+
+do_execsql_test 5.4.7.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS FIRST, b NULLS FIRST, a NULLS FIRST
+        ROWS BETWEEN 6 PRECEDING AND UNBOUNDED FOLLOWING   EXCLUDE TIES  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {979 102 83   979 102 83   979 102 83   979 102 83   979 102 83   979 102 83
+  979 102 83   979 113 81   979 113 82   979 133 80   979 148 79   979 158 77
+  979 158 78   979 160 77   979 208 76   979 223 75   979 224 74   979 234 73
+  979 238 72   979 239 71   979 247 70   979 250 69   979 252 68   979 256 67
+  979 257 66   979 295 65   979 309 64   979 330 63   979 335 62   979 336 61
+  979 346 60   979 354 59   979 355 58   979 355 58   979 393 56   979 393 57
+  979 398 55   979 399 54   979 399 54   979 412 53   979 421 52   979 430 51
+  979 443 50   979 480 48   979 480 49   979 572 47   979 574 46   979 607 45
+  979 618 43   979 618 44   979 627 42   979 629 41   979 629 41   979 633 40
+  979 634 39   979 652 38   979 660 37   979 667 36   979 667 36   979 670 35
+  979 671 34   979 683 33   979 705 32   979 711 31   979 716 30   979 726 29
+  979 730 28   979 759 27   979 762 26   979 768 24   979 768 25   979 777 23
+  979 786 22   979 790 21   979 792 20   979 794 19   979 805 18   979 822 17
+  979 839 15   979 839 16   979 840 14   979 844 13   979 845 12   979 870 10
+  979 870 11   979 870 11   979 899 9   979 911 8   979 929 7}
+
+do_execsql_test 5.4.7.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS FIRST, b NULLS FIRST, a NULLS FIRST
+        ROWS BETWEEN 6 PRECEDING AND UNBOUNDED FOLLOWING   EXCLUDE TIES  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {3830 89 89   4741 88 88   5640 84 84   5640 85 85   5640 86 86   5640 87 87
+  6485 81 81   6485 82 82   6485 83 83   7324 80 80   8163 78 78   8163 79 79
+  8968 73 73   8968 74 74   8968 75 75   8968 76 76   8968 77 77   9745 69 69
+  9745 70 70   9745 71 71   9745 72 72   10504 65 65   10504 66 66
+  10504 67 67   10504 68 68   11215 64 64   11920 63 63   12603 62 62
+  13274 60 60   13274 61 61   13941 59 59   14608 55 55   14608 56 56
+  14608 57 57   14608 58 58   15241 54 54   15870 53 53   16499 52 52
+  17126 49 49   17126 50 50   17126 51 51   17733 44 44   17733 45 45
+  17733 46 46   17733 47 47   17733 48 48   18176 42 42   18176 43 43
+  18597 40 40   18597 41 41   18996 39 39   19395 37 37   19395 38 38
+  19788 36 36   20181 35 35   20536 34 34   20891 30 30   20891 31 31
+  20891 32 32   20891 33 33   21226 28 28   21226 29 29   21535 27 27
+  21830 26 26   22087 22 22   22087 23 23   22087 24 24   22087 25 25
+  22334 21 21   22573 17 17   22573 18 18   22573 19 19   22573 20 20
+  22796 11 11   22796 12 12   22796 13 13   22796 14 14   22796 15 15
+  22796 16 16   22929 10 10   23042 9 9   23155 1 1   23155 2 2   23155 3 3
+  23155 4 4   23155 5 5   23155 6 6   23155 7 7   23155 8 8}
+
+do_execsql_test 5.4.8.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE TIES  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {102 102 1   113 113 1   113 113 1   133 133 1   148 148 1   158 158 0
+  158 158 1   160 160 1   208 208 1   223 223 1   224 224 1   234 234 1
+  238 238 1   239 239 1   247 247 1   250 250 1   252 252 1   256 256 1
+  257 257 1   295 295 1   309 309 1   330 330 1   335 335 1   336 336 1
+  346 346 1   354 354 1   355 355 0   355 355 1   393 393 1   393 393 1
+  398 398 1   399 399 0   399 399 1   412 412 1   421 421 1   430 430 1
+  443 443 1   480 480 1   480 480 1   572 572 1   574 574 1   607 607 1
+  618 618 1   618 618 1   627 627 1   629 629 0   629 629 1   633 633 1
+  634 634 1   652 652 1   660 660 1   667 667 0   667 667 1   670 670 1
+  671 671 1   683 683 1   705 705 1   711 711 1   716 716 1   726 726 1
+  730 730 1   759 759 1   762 762 1   768 768 1   768 768 1   777 777 1
+  786 786 1   790 790 1   792 792 1   794 794 1   805 805 1   822 822 1
+  839 839 1   839 839 1   840 840 1   844 844 1   845 845 1   870 870 0
+  870 870 1   870 870 1   899 899 1   911 911 1   929 929 1   934 934 1
+  938 938 1   938 938 1   959 959 1   963 963 1   979 979 1}
+
+do_execsql_test 5.4.8.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE TIES  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  113 1 1   113 1 1   133 1 1   223 1 1   239 1 1   247 1 1   257 1 1
+  295 1 1   309 1 1   335 1 1   355 1 1   355 1 1   393 1 1   393 1 1
+  399 1 1   399 1 1   421 1 1   443 1 1   607 1 1   627 1 1   629 1 1
+  629 1 1   633 1 1   667 1 1   667 1 1   671 1 1   683 1 1   705 1 1
+  711 1 1   759 1 1   777 1 1   805 1 1   839 1 1   839 1 1   845 1 1
+  899 1 1   911 1 1   929 1 1   959 1 1   963 1 1   979 1 1}
+
+do_execsql_test 5.4.9.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY a NULLS LAST 
+        RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE TIES  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {158 158 0   355 355 0   399 399 0   629 629 0   667 667 0   870 113 1
+  870 158 1   870 158 1   870 158 1   870 158 1   870 158 1   870 158 1
+  870 158 1   870 870 0   899 113 10   899 113 10   899 113 10   899 113 10
+  899 113 10   899 113 10   899 113 10   899 113 17   899 113 17   899 113 17
+  899 113 17   899 113 17   899 113 17   899 113 17   899 158 1   963 113 17
+  979 102 34   979 102 45   979 102 45   979 102 45   979 102 45   979 102 45
+  979 102 50   979 102 50   979 102 50   979 102 50   979 102 50   979 102 50
+  979 102 50   979 102 57   979 102 57   979 102 57   979 102 57   979 102 57
+  979 102 57   979 102 63   979 102 63   979 102 63   979 102 63   979 102 63
+  979 102 63   979 102 63   979 102 63   979 102 63   979 102 63   979 102 63
+  979 102 63   979 102 63   979 102 76   979 102 76   979 102 76   979 102 76
+  979 102 76   979 102 76   979 102 76   979 102 76   979 113 17   979 113 26
+  979 113 26   979 113 26   979 113 26   979 113 26   979 113 26   979 113 26
+  979 113 26   979 113 34   979 113 34   979 113 34   979 113 34   979 113 34
+  979 113 34   979 113 34   979 113 34   979 113 34   979 113 34}
+
+do_execsql_test 5.4.9.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY a NULLS LAST 
+        RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE TIES  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} 84 11   {} 84 11   355 84 11   399 84 11   629 84 11   667 84 11
+  2050 75 10   2050 75 10   2050 75 10   2050 75 10   2163 75 10   2307 75 10
+  2889 75 10   2889 75 10   2949 75 10   4997 68 9   4997 68 9   4997 68 9
+  5418 68 9   5440 68 9   5668 68 9   5802 68 9   7337 59 8   7337 59 8
+  7337 59 8   7337 59 8   7470 59 8   7692 59 8   8020 59 8   8300 59 8
+  8316 59 8   10450 51 7   10450 51 7   10450 51 7   10450 51 7   10450 51 7
+  10450 51 7   10785 51 7   11379 51 7   11714 40 6   11714 40 6   11714 40 6
+  11714 40 6   11714 40 6   11714 40 6   11714 40 6   11714 40 6   11714 40 6
+  12009 40 6   12381 40 6   12676 35 5   12676 35 5   12789 35 5   13305 35 5
+  13453 35 5   14195 28 4   14195 28 4   14195 28 4   14195 28 4   14195 28 4
+  15040 28 4   15154 28 4   15999 22 3   15999 22 3   15999 22 3   15999 22 3
+  16606 22 3   16758 22 3   17365 9 2   17365 9 2   17365 9 2   17365 9 2
+  17365 9 2   17365 9 2   17612 9 2   17758 9 2   17758 9 2   17764 9 2
+  17998 9 2   18070 9 2   18076 9 2   20846 1 1   20846 1 1   20846 1 1
+  21069 1 1   21085 1 1   21155 1 1   21473 1 1   21757 1 1}
+
+do_execsql_test 5.4.10.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  PARTITION BY coalesce(a, '') 
+        RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE TIES  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {102 102 1   113 113 1   113 113 1   133 133 1   148 148 1   158 158 0
+  158 158 1   160 160 1   208 208 1   223 223 1   224 224 1   234 234 1
+  238 238 1   239 239 1   247 247 1   250 250 1   252 252 1   256 256 1
+  257 257 1   295 295 1   309 309 1   330 330 1   335 335 1   336 336 1
+  346 346 1   354 354 1   355 355 0   355 355 1   393 393 1   393 393 1
+  398 398 1   399 399 0   399 399 1   412 412 1   421 421 1   430 430 1
+  443 443 1   480 480 1   480 480 1   572 572 1   574 574 1   607 607 1
+  618 618 1   618 618 1   627 627 1   629 629 0   629 629 1   633 633 1
+  634 634 1   652 652 1   660 660 1   667 667 0   667 667 1   670 670 1
+  671 671 1   683 683 1   705 705 1   711 711 1   716 716 1   726 726 1
+  730 730 1   759 759 1   762 762 1   768 768 1   768 768 1   777 777 1
+  786 786 1   790 790 1   792 792 1   794 794 1   805 805 1   822 822 1
+  839 839 1   839 839 1   840 840 1   844 844 1   845 845 1   870 870 0
+  870 870 1   870 870 1   899 899 1   911 911 1   929 929 1   934 934 1
+  938 938 1   938 938 1   959 959 1   963 963 1   979 979 1}
+
+do_execsql_test 5.4.10.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  PARTITION BY coalesce(a, '') 
+        RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING   EXCLUDE TIES  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1   {} 1 1
+  113 1 1   113 1 1   133 1 1   223 1 1   239 1 1   247 1 1   257 1 1
+  295 1 1   309 1 1   335 1 1   355 1 1   355 1 1   393 1 1   393 1 1
+  399 1 1   399 1 1   421 1 1   443 1 1   607 1 1   627 1 1   629 1 1
+  629 1 1   633 1 1   667 1 1   667 1 1   671 1 1   683 1 1   705 1 1
+  711 1 1   759 1 1   777 1 1   805 1 1   839 1 1   839 1 1   845 1 1
+  899 1 1   911 1 1   929 1 1   959 1 1   963 1 1   979 1 1}
+
+do_execsql_test 5.4.11.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY a NULLS LAST GROUPS 6 PRECEDING   EXCLUDE TIES  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {223 223 1   239 239 1   309 309 1   572 572 1   627 627 1   870 870 1
+  911 911 1   934 158 22   934 158 28   934 158 28   934 158 28   934 158 28
+  934 158 28   934 158 28   934 223 9   934 223 9   934 223 9   934 223 9
+  934 223 9   934 223 9   934 223 9   934 223 9   934 223 9   934 223 9
+  934 223 9   934 223 9   934 223 9   934 223 22   934 223 22   934 223 22
+  934 223 22   934 223 22   934 934 1   959 102 40   959 102 51   959 102 51
+  959 102 51   959 102 51   959 102 51   959 102 51   959 102 51   959 102 51
+  959 102 51   959 102 51   959 102 51   959 102 51   959 102 51   959 102 51
+  959 102 51   959 113 35   959 113 40   959 113 40   959 113 40   959 113 40
+  959 113 40   959 113 40   959 113 40   959 113 40   959 113 40   959 113 40
+  959 158 28   959 158 35   959 158 35   959 158 35   959 158 35   963 102 51
+  979 102 47   979 102 47   979 102 47   979 102 47   979 102 47   979 102 47
+  979 102 47   979 102 48   979 102 48   979 102 48   979 102 48   979 102 48
+  979 102 48   979 102 48   979 102 48   979 102 48   979 102 49   979 102 49
+  979 102 49   979 102 49   979 102 49   979 102 49   979 102 51}
+
+do_execsql_test 5.4.11.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY a NULLS LAST GROUPS 6 PRECEDING   EXCLUDE TIES  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} 1 1   {} 1 1   {} 1 1   223 1 1   239 1 1   309 1 1   627 1 1   911 1 1
+  2309 9 2   2309 9 2   2309 9 2   2309 9 2   2309 9 2   2309 9 2   2556 9 2
+  2702 9 2   2702 9 2   2708 9 2   2942 9 2   3014 9 2   3020 9 2   5790 22 3
+  5790 22 3   5790 22 3   5790 22 3   6397 22 3   6549 22 3   7156 28 4
+  7156 28 4   7156 28 4   7156 28 4   7156 28 4   8001 28 4   8115 28 4
+  8960 35 5   8960 35 5   9073 35 5   9589 35 5   9737 35 5   10028 68 9
+  10028 68 9   10028 68 9   10396 59 8   10396 59 8   10396 59 8   10396 59 8
+  10449 68 9   10471 68 9   10479 40 6   10479 40 6   10479 40 6   10479 40 6
+  10479 40 6   10479 40 6   10479 40 6   10479 40 6   10479 40 6   10529 59 8
+  10699 68 9   10751 59 8   10774 40 6   10833 68 9   11002 75 10
+  11002 75 10   11002 75 10   11002 75 10   11079 59 8   11115 75 10
+  11146 40 6   11259 75 10   11359 59 8   11375 59 8   11441 51 7
+  11441 51 7   11441 51 7   11441 51 7   11441 51 7   11441 51 7   11776 51 7
+  11841 75 10   11841 75 10   11901 75 10   12145 84 11   12145 84 11
+  12370 51 7   12500 84 11   12544 84 11   12774 84 11   12812 84 11}
+
+do_execsql_test 5.4.12.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS LAST RANGE BETWEEN 6 PRECEDING AND 7 FOLLOWING   EXCLUDE TIES  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {102 102 1   113 113 1   113 113 1   133 133 1   148 148 1   160 158 1
+  160 158 2   160 158 2   208 208 1   224 223 2   224 223 2   239 234 3
+  239 234 3   239 234 3   252 247 3   257 247 5   257 247 5   257 250 4
+  257 252 3   295 295 1   309 309 1   336 330 3   336 330 3   336 330 3
+  346 346 1   355 354 1   355 354 2   355 354 2   399 393 3   399 393 3
+  399 393 3   399 393 4   399 393 4   412 412 1   421 421 1   430 430 1
+  443 443 1   480 480 1   480 480 1   574 572 2   574 572 2   607 607 1
+  618 618 1   618 618 1   634 627 3   634 627 4   634 627 4   634 627 4
+  634 629 3   652 652 1   667 660 2   671 667 2   671 667 3   671 667 3
+  671 667 3   683 683 1   711 705 2   716 705 3   716 711 2   730 726 2
+  730 726 2   762 759 2   768 759 4   768 762 2   768 762 2   777 777 1
+  792 786 3   794 786 4   794 786 4   794 790 3   805 805 1   822 822 1
+  845 839 4   845 839 4   845 839 5   845 839 5   845 839 5   870 870 0
+  870 870 1   870 870 1   899 899 1   911 911 1   934 929 2   938 929 4
+  938 934 2   938 934 2   963 959 2   963 959 2   979 979 1}
+
+do_execsql_test 5.4.12.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS LAST RANGE BETWEEN 6 PRECEDING AND 7 FOLLOWING   EXCLUDE TIES  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} 1 1   {} 5 4   {} 6 5   {} 6 5   {} 8 6   {} 9 7   {} 25 23   {} 34 29
+  {} 36 31   {} 38 33   {} 38 33   {} 40 34   {} 41 35   {} 43 37   {} 43 37
+  {} 50 42   {} 60 51   {} 61 52   {} 64 55   {} 64 55   {} 67 57   {} 68 58
+  {} 69 59   {} 70 60   {} 72 62   {} 78 67   {} 78 67   {} 78 67   {} 85 72
+  {} 85 72   113 2 2   113 2 2   133 4 3   223 10 8   223 11 9   239 12 10
+  239 13 11   239 14 12   247 15 13   257 18 16   257 19 17   295 20 18
+  309 21 19   335 22 20   335 23 21   335 24 22   355 27 25   355 27 25
+  421 35 30   443 37 32   504 16 14   504 17 15   607 42 36   683 56 47
+  710 26 24   711 59 50   759 62 53   759 63 54   777 66 56   805 71 61
+  899 81 68   911 82 69   929 83 70   929 84 71   979 89 75   1185 32 28
+  1185 32 28   1191 29 26   1191 29 26   1334 51 43   1338 52 44   1338 52 44
+  1416 57 48   1416 58 49   1584 31 27   1684 73 63   1684 73 63   1889 46 39
+  1889 46 39   1891 49 41   1922 87 73   1922 88 74   2005 54 45   2005 55 46
+  2518 45 38   2518 48 40   2523 75 64   2523 76 65   2523 77 66}
+
+do_execsql_test 5.4.13.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS LAST RANGE BETWEEN 0 PRECEDING AND 0 FOLLOWING   EXCLUDE TIES  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {102 102 1   113 113 1   113 113 1   133 133 1   148 148 1   158 158 0
+  158 158 1   160 160 1   208 208 1   223 223 1   224 224 1   234 234 1
+  238 238 1   239 239 1   247 247 1   250 250 1   252 252 1   256 256 1
+  257 257 1   295 295 1   309 309 1   330 330 1   335 335 1   336 336 1
+  346 346 1   354 354 1   355 355 0   355 355 1   393 393 1   393 393 1
+  398 398 1   399 399 0   399 399 1   412 412 1   421 421 1   430 430 1
+  443 443 1   480 480 1   480 480 1   572 572 1   574 574 1   607 607 1
+  618 618 1   618 618 1   627 627 1   629 629 0   629 629 1   633 633 1
+  634 634 1   652 652 1   660 660 1   667 667 0   667 667 1   670 670 1
+  671 671 1   683 683 1   705 705 1   711 711 1   716 716 1   726 726 1
+  730 730 1   759 759 1   762 762 1   768 768 1   768 768 1   777 777 1
+  786 786 1   790 790 1   792 792 1   794 794 1   805 805 1   822 822 1
+  839 839 1   839 839 1   840 840 1   844 844 1   845 845 1   870 870 0
+  870 870 1   870 870 1   899 899 1   911 911 1   929 929 1   934 934 1
+  938 938 1   938 938 1   959 959 1   963 963 1   979 979 1}
+
+do_execsql_test 5.4.13.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS LAST RANGE BETWEEN 0 PRECEDING AND 0 FOLLOWING   EXCLUDE TIES  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {{} 1 1   {} 5 4   {} 6 5   {} 6 5   {} 8 6   {} 9 7   {} 11 9   {} 12 10
+  {} 13 11   {} 16 14   {} 17 15   {} 18 16   {} 22 20   {} 24 22   {} 25 23
+  {} 26 24   {} 31 27   {} 34 29   {} 36 31   {} 38 33   {} 38 33   {} 40 34
+  {} 41 35   {} 43 37   {} 43 37   {} 49 41   {} 50 42   {} 51 43   {} 54 45
+  {} 59 50   {} 60 51   {} 61 52   {} 63 54   {} 64 55   {} 64 55   {} 67 57
+  {} 68 58   {} 69 59   {} 70 60   {} 72 62   {} 75 64   {} 76 65   {} 78 67
+  {} 78 67   {} 78 67   {} 84 71   {} 85 72   {} 85 72   113 2 2   113 2 2
+  133 4 3   223 10 8   239 14 12   247 15 13   257 19 17   295 20 18
+  309 21 19   335 23 21   355 27 25   355 27 25   393 29 26   393 29 26
+  399 32 28   399 32 28   421 35 30   443 37 32   607 42 36   627 45 38
+  629 46 39   629 46 39   633 48 40   667 52 44   667 52 44   671 55 46
+  683 56 47   705 57 48   711 58 49   759 62 53   777 66 56   805 71 61
+  839 73 63   839 73 63   845 77 66   899 81 68   911 82 69   929 83 70
+  959 87 73   963 88 74   979 89 75}
+
+do_execsql_test 5.4.14.1 {
+  SELECT max(c) OVER win,
+             min(c) OVER win,
+             count(a) OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS LAST, b NULLS LAST, a NULLS LAST
+        ROWS BETWEEN 6 PRECEDING AND UNBOUNDED FOLLOWING   EXCLUDE TIES  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {979 102 83   979 102 83   979 102 83   979 102 83   979 102 83   979 102 83
+  979 102 83   979 113 81   979 113 82   979 133 80   979 148 79   979 158 77
+  979 158 78   979 160 77   979 208 76   979 223 75   979 224 74   979 234 73
+  979 238 72   979 239 71   979 247 70   979 250 69   979 252 68   979 256 67
+  979 257 66   979 295 65   979 309 64   979 330 63   979 335 62   979 336 61
+  979 346 60   979 354 59   979 355 57   979 355 58   979 393 56   979 393 57
+  979 398 55   979 399 53   979 399 54   979 412 53   979 421 52   979 430 51
+  979 443 50   979 480 48   979 480 49   979 572 47   979 574 46   979 607 45
+  979 618 43   979 618 44   979 627 42   979 629 40   979 629 41   979 633 40
+  979 634 39   979 652 38   979 660 37   979 667 35   979 667 36   979 670 35
+  979 671 34   979 683 33   979 705 32   979 711 31   979 716 30   979 726 29
+  979 730 28   979 759 27   979 762 26   979 768 24   979 768 25   979 777 23
+  979 786 22   979 790 21   979 792 20   979 794 19   979 805 18   979 822 17
+  979 839 15   979 839 16   979 840 14   979 844 13   979 845 12   979 870 9
+  979 870 10   979 870 11   979 899 9   979 911 8   979 929 7}
+
+do_execsql_test 5.4.14.2 {
+  SELECT sum(c) FILTER (WHERE (c%2)!=0) OVER win,
+             rank() OVER win,
+             dense_rank() OVER win
+      FROM t3
+      WINDOW win AS (  ORDER BY c NULLS LAST, b NULLS LAST, a NULLS LAST
+        ROWS BETWEEN 6 PRECEDING AND UNBOUNDED FOLLOWING   EXCLUDE TIES  )
+      ORDER BY 1 NULLS FIRST, 2 NULLS FIRST, 3 NULLS FIRST
+} {3830 89 89   4741 88 88   5640 84 84   5640 85 85   5640 86 86   5640 87 87
+  6485 81 81   6485 82 82   6485 83 83   7324 80 80   8163 78 78   8163 79 79
+  8968 73 73   8968 74 74   8968 75 75   8968 76 76   8968 77 77   9745 69 69
+  9745 70 70   9745 71 71   9745 72 72   10504 65 65   10504 66 66
+  10504 67 67   10504 68 68   11215 64 64   11920 63 63   12603 62 62
+  13274 60 60   13274 61 61   13941 59 59   14608 55 55   14608 56 56
+  14608 57 57   14608 58 58   15241 54 54   15870 53 53   16499 52 52
+  17126 49 49   17126 50 50   17126 51 51   17733 44 44   17733 45 45
+  17733 46 46   17733 47 47   17733 48 48   18176 42 42   18176 43 43
+  18597 40 40   18597 41 41   18996 39 39   19395 37 37   19395 38 38
+  19788 36 36   20181 35 35   20536 34 34   20891 30 30   20891 31 31
+  20891 32 32   20891 33 33   21226 28 28   21226 29 29   21535 27 27
+  21830 26 26   22087 22 22   22087 23 23   22087 24 24   22087 25 25
+  22334 21 21   22573 17 17   22573 18 18   22573 19 19   22573 20 20
+  22796 11 11   22796 12 12   22796 13 13   22796 14 14   22796 15 15
+  22796 16 16   22929 10 10   23042 9 9   23155 1 1   23155 2 2   23155 3 3
+  23155 4 4   23155 5 5   23155 6 6   23155 7 7   23155 8 8}
+
+#==========================================================================
+
+do_execsql_test 6.0 {
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t2(a TEXT, b INTEGER);
+  INSERT INTO t2 VALUES('A', NULL);
+  INSERT INTO t2 VALUES('B', NULL);
+  INSERT INTO t2 VALUES('C', 1);
+} {}
+
+do_execsql_test 6.1 {
+  SELECT group_concat(a, '.') OVER (
+    ORDER BY b NULLS FIRST RANGE BETWEEN 7 PRECEDING AND 2 PRECEDING
+  )
+  FROM t2
+} {A.B   A.B   {}}
+
+do_execsql_test 6.2 {
+  SELECT group_concat(a, '.') OVER (
+    ORDER BY b DESC NULLS LAST RANGE BETWEEN 7 PRECEDING AND 2 PRECEDING
+  )
+  FROM t2
+} {{}   A.B   A.B}
+
+#==========================================================================
+
+do_execsql_test 7.0 {
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t2(a INTEGER, b INTEGER);
+
+  INSERT INTO t2 VALUES(1, 65);
+  INSERT INTO t2 VALUES(2, NULL);
+  INSERT INTO t2 VALUES(3, NULL);
+  INSERT INTO t2 VALUES(4, NULL);
+  INSERT INTO t2 VALUES(5, 66);
+  INSERT INTO t2 VALUES(6, 67);
+} {}
+
+do_execsql_test 7.1.1 {
+  SELECT sum (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS LAST RANGE BETWEEN 6 FOLLOWING AND UNBOUNDED FOLLOWING
+  );
+} {9   9   9   9   9   9}
+
+do_execsql_test 7.1.2 {
+  SELECT sum (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS LAST RANGE BETWEEN 1 PRECEDING AND 2 PRECEDING
+  );
+} {{}   {}   {}   9   9   9}
+
+do_execsql_test 7.1.3 {
+  SELECT sum (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS LAST RANGE BETWEEN 2 FOLLOWING AND 1 FOLLOWING
+  );
+} {{}   {}   {}   9   9   9}
+
+do_execsql_test 7.1.4 {
+  SELECT sum (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS FIRST RANGE BETWEEN 1 PRECEDING AND 2 PRECEDING
+  );
+} {9   9   9   {}   {}   {}}
+
+do_execsql_test 7.1.5 {
+  SELECT sum (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS FIRST RANGE BETWEEN 2 FOLLOWING AND 1 FOLLOWING
+  );
+} {9   9   9   {}   {}   {}}
+
+do_execsql_test 7.1.6 {
+  SELECT sum (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS LAST RANGE BETWEEN 1000 PRECEDING AND 2 PRECEDING
+  );
+} {{}   {}   1   9   9   9}
+
+do_execsql_test 7.1.7 {
+  SELECT sum (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS LAST RANGE BETWEEN 2000 FOLLOWING AND 1000 FOLLOWING
+  );
+} {{}   {}   {}   9   9   9}
+
+do_execsql_test 7.1.8 {
+  SELECT sum (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS FIRST RANGE BETWEEN 1000 PRECEDING AND 2000 PRECEDING
+  );
+} {9   9   9   {}   {}   {}}
+
+do_execsql_test 7.1.9 {
+  SELECT sum (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS FIRST RANGE BETWEEN 2000 FOLLOWING AND 1000 FOLLOWING
+  );
+} {9   9   9   {}   {}   {}}
+
+do_execsql_test 7.2.1 {
+  SELECT min (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS LAST RANGE BETWEEN 6 FOLLOWING AND UNBOUNDED FOLLOWING
+  );
+} {2   2   2   2   2   2}
+
+do_execsql_test 7.2.2 {
+  SELECT min (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS LAST RANGE BETWEEN 1 PRECEDING AND 2 PRECEDING
+  );
+} {{}   {}   {}   2   2   2}
+
+do_execsql_test 7.2.3 {
+  SELECT min (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS LAST RANGE BETWEEN 2 FOLLOWING AND 1 FOLLOWING
+  );
+} {{}   {}   {}   2   2   2}
+
+do_execsql_test 7.2.4 {
+  SELECT min (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS FIRST RANGE BETWEEN 1 PRECEDING AND 2 PRECEDING
+  );
+} {2   2   2   {}   {}   {}}
+
+do_execsql_test 7.2.5 {
+  SELECT min (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS FIRST RANGE BETWEEN 2 FOLLOWING AND 1 FOLLOWING
+  );
+} {2   2   2   {}   {}   {}}
+
+do_execsql_test 7.2.6 {
+  SELECT min (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS LAST RANGE BETWEEN 1000 PRECEDING AND 2 PRECEDING
+  );
+} {{}   {}   1   2   2   2}
+
+do_execsql_test 7.2.7 {
+  SELECT min (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS LAST RANGE BETWEEN 2000 FOLLOWING AND 1000 FOLLOWING
+  );
+} {{}   {}   {}   2   2   2}
+
+do_execsql_test 7.2.8 {
+  SELECT min (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS FIRST RANGE BETWEEN 1000 PRECEDING AND 2000 PRECEDING
+  );
+} {2   2   2   {}   {}   {}}
+
+do_execsql_test 7.2.9 {
+  SELECT min (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS FIRST RANGE BETWEEN 2000 FOLLOWING AND 1000 FOLLOWING
+  );
+} {2   2   2   {}   {}   {}}
+
+do_execsql_test 7.3.1 {
+  SELECT sum (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS LAST RANGE BETWEEN 6 FOLLOWING AND UNBOUNDED FOLLOWING
+  );
+} {9   9   9   9   9   9}
+
+do_execsql_test 7.3.2 {
+  SELECT sum (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS LAST RANGE BETWEEN 1 PRECEDING AND 2 PRECEDING
+  );
+} {{}   {}   {}   9   9   9}
+
+do_execsql_test 7.3.3 {
+  SELECT sum (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS LAST RANGE BETWEEN 2 FOLLOWING AND 1 FOLLOWING
+  );
+} {{}   {}   {}   9   9   9}
+
+do_execsql_test 7.3.4 {
+  SELECT sum (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS FIRST RANGE BETWEEN 1 PRECEDING AND 2 PRECEDING
+  );
+} {9   9   9   {}   {}   {}}
+
+do_execsql_test 7.3.5 {
+  SELECT sum (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS FIRST RANGE BETWEEN 2 FOLLOWING AND 1 FOLLOWING
+  );
+} {9   9   9   {}   {}   {}}
+
+do_execsql_test 7.3.6 {
+  SELECT sum (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS LAST RANGE BETWEEN 1000 PRECEDING AND 2 PRECEDING
+  );
+} {{}   {}   1   9   9   9}
+
+do_execsql_test 7.3.7 {
+  SELECT sum (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS LAST RANGE BETWEEN 2000 FOLLOWING AND 1000 FOLLOWING
+  );
+} {{}   {}   {}   9   9   9}
+
+do_execsql_test 7.3.8 {
+  SELECT sum (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS FIRST RANGE BETWEEN 1000 PRECEDING AND 2000 PRECEDING
+  );
+} {9   9   9   {}   {}   {}}
+
+do_execsql_test 7.3.9 {
+  SELECT sum (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS FIRST RANGE BETWEEN 2000 FOLLOWING AND 1000 FOLLOWING
+  );
+} {9   9   9   {}   {}   {}}
+
+do_execsql_test 7.4.1 {
+  SELECT max (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS LAST RANGE BETWEEN 6 FOLLOWING AND UNBOUNDED FOLLOWING
+  );
+} {4   4   4   4   4   4}
+
+do_execsql_test 7.4.2 {
+  SELECT max (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS LAST RANGE BETWEEN 1 PRECEDING AND 2 PRECEDING
+  );
+} {{}   {}   {}   4   4   4}
+
+do_execsql_test 7.4.3 {
+  SELECT max (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS LAST RANGE BETWEEN 2 FOLLOWING AND 1 FOLLOWING
+  );
+} {{}   {}   {}   4   4   4}
+
+do_execsql_test 7.4.4 {
+  SELECT max (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS FIRST RANGE BETWEEN 1 PRECEDING AND 2 PRECEDING
+  );
+} {4   4   4   {}   {}   {}}
+
+do_execsql_test 7.4.5 {
+  SELECT max (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS FIRST RANGE BETWEEN 2 FOLLOWING AND 1 FOLLOWING
+  );
+} {4   4   4   {}   {}   {}}
+
+do_execsql_test 7.4.6 {
+  SELECT max (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS LAST RANGE BETWEEN 1000 PRECEDING AND 2 PRECEDING
+  );
+} {{}   {}   1   4   4   4}
+
+do_execsql_test 7.4.7 {
+  SELECT max (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS LAST RANGE BETWEEN 2000 FOLLOWING AND 1000 FOLLOWING
+  );
+} {{}   {}   {}   4   4   4}
+
+do_execsql_test 7.4.8 {
+  SELECT max (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS FIRST RANGE BETWEEN 1000 PRECEDING AND 2000 PRECEDING
+  );
+} {4   4   4   {}   {}   {}}
+
+do_execsql_test 7.4.9 {
+  SELECT max (a) OVER win FROM t2
+  WINDOW win AS (
+      ORDER BY b NULLS FIRST RANGE BETWEEN 2000 FOLLOWING AND 1000 FOLLOWING
+  );
+} {4   4   4   {}   {}   {}}
+
+#==========================================================================
+
+do_execsql_test 8.0 {
+  DROP TABLE IF EXISTS tx;
+  CREATE TABLE tx(a INTEGER PRIMARY KEY);
+  INSERT INTO tx VALUES(1), (2), (3), (4), (5), (6);
+
+  DROP TABLE IF EXISTS map;
+  CREATE TABLE map(v INTEGER PRIMARY KEY, t TEXT);
+  INSERT INTO map VALUES
+    (1, 'odd'), (2, 'even'), (3, 'odd'), 
+    (4, 'even'), (5, 'odd'), (6, 'even');
+} {}
+
+do_execsql_test 8.1 {
+  SELECT sum(a) OVER (
+    PARTITION BY (
+      SELECT t FROM map WHERE v=a
+    ) ORDER BY a
+  ) FROM tx;
+} {2   6   12   1   4   9}
+
+do_execsql_test 8.2 {
+  SELECT sum(a) OVER win FROM tx
+  WINDOW win AS (
+    PARTITION BY (
+      SELECT t FROM map WHERE v=a
+    ) ORDER BY a
+  );
+} {2   6   12   1   4   9}
+
+do_execsql_test 8.3 {
+  WITH map2 AS (
+    SELECT * FROM map
+  )
+  SELECT sum(a) OVER (
+    PARTITION BY (
+      SELECT t FROM map2 WHERE v=a
+    ) ORDER BY a
+  ) FROM tx;
+} {2   6   12   1   4   9}
+
+do_execsql_test 8.4 {
+  WITH map2 AS (
+    SELECT * FROM map
+  )
+  SELECT sum(a) OVER win FROM tx
+  WINDOW win AS (
+    PARTITION BY (
+      SELECT t FROM map2 WHERE v=a
+    ) ORDER BY a
+  );
+} {2   6   12   1   4   9}
+
+#==========================================================================
+
+do_execsql_test 9.1 {
+  DROP TABLE IF EXISTS t1;
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t1(a INTEGER);
+  CREATE TABLE t2(y INTEGER);
+} {}
+
+do_execsql_test 9.2 {
+  SELECT (
+    SELECT max(a) OVER ( ORDER BY (SELECT sum(a) FROM t1) )
+         + min(a) OVER() 
+  )
+  FROM t1
+} {}
+
+#==========================================================================
+
+do_execsql_test 10.0 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a INTEGER, b INTEGER);
+  INSERT INTO t1 VALUES (10, 1), 
+                        (20, -1), 
+                        (5, 2), 
+                        (15, 0), 
+                        (25, 3);
+} {}
+
+do_execsql_test 10.1 {
+  SELECT 
+    a, b, MIN(a) FILTER(WHERE b > 0) OVER win 
+    FROM t1
+    WINDOW win AS (ORDER BY a ROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING);
+} {5 2 5   10 1 5   15 0 10   20 -1 25   25 3 25}
+
+do_execsql_test 10.2 {
+  SELECT 
+    a, b, MIN(a) FILTER(WHERE b > 0) OVER win 
+    FROM t1
+    WINDOW win AS ();
+} {10 1 5   20 -1 5   5 2 5   15 0 5   25 3 5}
+
+do_execsql_test 10.3 {
+  SELECT 
+    a, b, MIN(a) FILTER(WHERE b > 0) OVER win 
+    FROM t1
+    WINDOW win AS (ORDER BY a);
+} {5 2 5   10 1 5   15 0 5   20 -1 5   25 3 5}
+
+do_execsql_test 10.4 {
+  SELECT 
+    a, b, MIN(a) OVER win 
+    FROM t1
+    WINDOW win AS (ORDER BY a ROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING);
+} {5 2 5   10 1 5   15 0 10   20 -1 15   25 3 20}
+
+#==========================================================================
+
+do_execsql_test 11.0 {
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t2(a INTEGER, b INTEGER);
+  INSERT INTO t2 VALUES(1, 12);
+  INSERT INTO t2 VALUES(2, 10);
+  INSERT INTO t2 VALUES(3, 15);
+  INSERT INTO t2 VALUES(4, 22);
+  INSERT INTO t2 VALUES(5,  1);
+  INSERT INTO t2 VALUES(6,  4);
+  INSERT INTO t2 VALUES(7,  7);
+  INSERT INTO t2 VALUES(8,  6);
+  INSERT INTO t2 VALUES(9, 22);
+  INSERT INTO t2 VALUES(10, 2);
+} {}
+
+do_execsql_test 11.1 {
+  SELECT a, min(b) FILTER (WHERE a%2 != 0) OVER win
+  FROM t2
+  WINDOW win AS (ORDER BY a ROWS BETWEEN 2 PRECEDING AND 2 FOLLOWING);
+} {1 12   2 12   3 1   4 1   5 1   6 1   7 1   8 7   9 7   10 22}
+
+finish_test
diff --git a/test/window9.test b/test/window9.test
new file mode 100644
index 0000000000000000000000000000000000000000..0548624f8274c29c3a975ecbe7369680a12eac3d
--- /dev/null
+++ b/test/window9.test
@@ -0,0 +1,343 @@
+# 2019 June 8
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix window9
+
+ifcapable !windowfunc {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE TABLE fruits(
+     name TEXT COLLATE NOCASE,
+     color TEXT COLLATE NOCASE
+  );
+}
+
+do_execsql_test 1.1 {
+  INSERT INTO fruits (name, color) VALUES ('apple', 'RED');
+  INSERT INTO fruits (name, color) VALUES ('APPLE', 'yellow');
+  INSERT INTO fruits (name, color) VALUES ('pear', 'YELLOW');
+  INSERT INTO fruits (name, color) VALUES ('PEAR', 'green');
+}
+
+do_execsql_test 1.2 {
+  SELECT name, color, dense_rank() OVER (ORDER BY name) FROM fruits;
+} {
+  apple RED    1
+  APPLE yellow 1
+  pear  YELLOW 2
+  PEAR  green  2
+}
+
+do_execsql_test 1.3 {
+  SELECT name, color,
+    dense_rank() OVER (PARTITION BY name ORDER BY color)
+  FROM fruits;
+} {
+  apple RED    1 
+  APPLE yellow 2 
+  PEAR green   1 
+  pear YELLOW  2
+}
+
+do_execsql_test 1.4 {
+  SELECT name, color,
+    dense_rank() OVER (ORDER BY name),
+    dense_rank() OVER (PARTITION BY name ORDER BY color)
+  FROM fruits;
+} {
+  apple RED    1 1 
+  APPLE yellow 1 2 
+  PEAR  green  2 1 
+  pear  YELLOW 2 2
+}
+
+do_execsql_test 1.5 {
+  SELECT name, color,
+    dense_rank() OVER (ORDER BY name),
+    dense_rank() OVER (PARTITION BY name ORDER BY color)
+  FROM fruits ORDER BY color;
+} {
+  PEAR  green  2 1 
+  apple RED    1 1 
+  APPLE yellow 1 2 
+  pear  YELLOW 2 2
+}
+
+do_execsql_test 2.0 {
+  CREATE TABLE t1(a BLOB, b INTEGER, c COLLATE nocase);
+  INSERT INTO t1 VALUES(1, 2, 'abc');
+  INSERT INTO t1 VALUES(3, 4, 'ABC');
+}
+
+do_execsql_test 2.1.1 {
+  SELECT c=='Abc' FROM t1
+} {1     1}
+do_execsql_test 2.1.2 {
+  SELECT c=='Abc', rank() OVER (ORDER BY b) FROM t1
+} {1 1   1 2}
+
+do_execsql_test 2.2.1 {
+  SELECT b=='2' FROM t1
+} {1     0}
+do_execsql_test 2.2.2 {
+  SELECT b=='2', rank() OVER (ORDER BY a) FROM t1
+} {1 1   0 2}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 3.0 {
+  CREATE TABLE t1(a);
+  CREATE TABLE t2(a,b,c);
+}
+
+do_execsql_test 3.1 {
+  SELECT EXISTS(SELECT 1 FROM t1 ORDER BY sum(a) OVER ()) FROM t1;
+}
+
+do_execsql_test 3.2 {
+  SELECT sum(a) OVER () FROM t2
+   ORDER BY EXISTS(SELECT 1 FROM t2 ORDER BY sum(a) OVER ());
+}
+
+do_catchsql_test 3.3 {
+  SELECT a, sum(a) OVER (ORDER BY a DESC) FROM t2 
+  ORDER BY EXISTS(
+    SELECT 1 FROM t2 ORDER BY sum(a) OVER (ORDER BY a)
+  ) OVER (ORDER BY a);
+} {1 {near "OVER": syntax error}}
+
+do_catchsql_test 3.4 {
+  SELECT y, y+1, y+2 FROM (
+      SELECT c IN (
+        SELECT min(a) OVER (),
+        (abs(row_number() OVER())+22)/19,
+        max(a) OVER () FROM t1
+        ) AS y FROM t2
+      );
+} {1 {sub-select returns 3 columns - expected 1}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 4.0 {
+  CREATE TABLE t1(a, b TEXT);
+  INSERT INTO t1 VALUES('A', 1), ('A', 2), ('2', 1), ('2', 2);
+}
+
+do_execsql_test 4.1.1 {
+  SELECT b, b=count(*), '1,2'                   FROM t1 GROUP BY b;
+} {1 0 1,2 2 1 1,2}
+do_execsql_test 4.1.2 {
+  SELECT b, b=count(*), group_concat(b) OVER () FROM t1 GROUP BY b;
+} {1 0 1,2 2 1 1,2}
+
+#--------------------------------------------------------------------------
+reset_db
+do_execsql_test 5.0 {
+  CREATE TABLE t1(a, b, c, d, e);
+  CREATE INDEX i1 ON t1(a, b, c, d, e);
+}
+
+foreach {tn sql} {
+  1 {
+    SELECT 
+      sum(e) OVER (),
+      sum(e) OVER (ORDER BY a),
+      sum(e) OVER (PARTITION BY a ORDER BY b),
+      sum(e) OVER (PARTITION BY a, b ORDER BY c),
+      sum(e) OVER (PARTITION BY a, b, c ORDER BY d)
+    FROM t1;
+  }
+  2 {
+    SELECT sum(e) OVER (PARTITION BY a ORDER BY b) FROM t1 ORDER BY a;
+  }
+} {
+  do_test 5.1.$tn {
+    execsql "EXPLAIN QUERY PLAN $sql"
+  } {~/ORDER/}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 6.0 {
+  CREATE TABLE t0(c0);
+  INSERT INTO t0(c0) VALUES (0);
+}
+
+do_execsql_test 6.1 {
+  SELECT * FROM t0 WHERE 
+  EXISTS (
+    SELECT MIN(c0) OVER (), CUME_DIST() OVER () FROM t0
+  ) >=1 AND 
+  EXISTS (
+    SELECT MIN(c0) OVER (), CUME_DIST() OVER () FROM t0
+  ) <=1;
+} {0}
+
+do_execsql_test 6.2 {
+  SELECT * FROM t0 WHERE EXISTS (
+    SELECT MIN(c0) OVER (), CUME_DIST() OVER () FROM t0
+  ) 
+  BETWEEN 1 AND 1;
+} {0}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 7.0 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(x, y);
+  INSERT INTO t1 VALUES(10, 1);
+  INSERT INTO t1 VALUES(20, 2);
+  INSERT INTO t1 VALUES(3, 3);
+  INSERT INTO t1 VALUES(2, 4);
+  INSERT INTO t1 VALUES(1, 5);
+} {}
+
+
+do_execsql_test 7.1 {
+  SELECT avg(x) OVER (ORDER BY y) AS z FROM t1 ORDER BY z
+} {
+  7.2 8.75 10.0 11.0 15.0
+}
+
+do_execsql_test 7.2 {
+  SELECT avg(x) OVER (ORDER BY y) z FROM t1 ORDER BY (z IS y);
+} {
+  10.0 15.0 11.0 8.75 7.2
+}
+
+do_execsql_test 7.3 {
+  SELECT avg(x) OVER (ORDER BY y) z FROM t1 ORDER BY (y IS z);
+} {
+  10.0 15.0 11.0 8.75 7.2
+}
+
+do_execsql_test 7.4 {
+  SELECT avg(x) OVER (ORDER BY y) z FROM t1 ORDER BY z + 0.0;
+} {
+  7.2 8.75 10.0 11.0 15.0
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 8.1.1 {
+  CREATE TABLE t1(a, b);
+  INSERT INTO t1 VALUES(1, 2), (3, 4);
+  SELECT min( sum(a) ) OVER () FROM t1;
+} {4}
+
+do_execsql_test 8.1.2 {
+  SELECT min( sum(a) ) OVER () FROM t1 GROUP BY a;
+} {1 1}
+
+do_execsql_test 8.2 {
+  CREATE VIEW v1 AS 
+    SELECT 0 AS x
+      UNION 
+    SELECT count() OVER() FROM (SELECT 0) 
+    ORDER BY 1
+  ;
+}
+
+do_catchsql_test 8.3 {
+  SELECT min( max((SELECT x FROM v1)) ) OVER()
+} {0 0}
+
+do_execsql_test 8.4 {
+  SELECT(
+      SELECT x UNION 
+      SELECT sum( avg((SELECT x FROM v1)) ) OVER()
+  )
+  FROM v1;
+} {0.0 0.0}
+
+#--------------------------------------------------------------------------
+reset_db
+do_execsql_test 9.0 {
+  CREATE TABLE t1(a, b, c);
+  INSERT INTO t1 VALUES(NULL,'bb',356);
+  INSERT INTO t1 VALUES('CB','aa',158);
+  INSERT INTO t1 VALUES('BB','aa',399);
+  INSERT INTO t1 VALUES('FF','bb',938);
+}
+
+do_catchsql_test 9.1 {
+  SELECT sum(c) OVER (
+    ORDER BY c RANGE BETWEEN 0 PRECEDING AND '-700' PRECEDING
+  )
+  FROM t1
+} {1 {frame ending offset must be a non-negative number}}
+
+#--------------------------------------------------------------------------
+reset_db
+
+do_execsql_test 10.0 {
+  CREATE TABLE t1(a, b);
+  INSERT INTO t1 VALUES(1, 'a');
+  INSERT INTO t1 VALUES(2, 'b');
+  INSERT INTO t1 VALUES(3, 'c');
+  INSERT INTO t1 VALUES(4, 'd');
+  INSERT INTO t1 VALUES(5, 'e');
+  INSERT INTO t1 VALUES(6, 'f');
+}
+
+do_execsql_test 10.1 {
+  SELECT a, min(b) OVER win
+  FROM t1
+  WINDOW win AS (ORDER BY a ROWS BETWEEN 2 PRECEDING AND 1 FOLLOWING)
+} {
+  1 a
+  2 a
+  3 a
+  4 b
+  5 c
+  6 d
+}
+
+do_execsql_test 10.2 {
+  SELECT a, min(b) FILTER (WHERE a%2) OVER win
+  FROM t1
+  WINDOW win AS (ORDER BY a ROWS BETWEEN 2 PRECEDING AND 1 FOLLOWING)
+} {
+  1 a
+  2 a
+  3 a
+  4 c
+  5 c
+  6 e
+}
+
+do_execsql_test 10.3 {
+  SELECT a, min(b) FILTER (WHERE (a%2)=0) OVER win
+  FROM t1
+  WINDOW win AS (ORDER BY a ROWS BETWEEN 2 PRECEDING AND 1 FOLLOWING)
+} {
+  1 b
+  2 b
+  3 b
+  4 b
+  5 d
+  6 d
+}
+
+do_catchsql_test 10.4 {
+  SELECT a, nth_value(b, 1) FILTER (WHERE (a%2)=0) OVER win
+  FROM t1
+  WINDOW win AS (ORDER BY a ROWS BETWEEN 2 PRECEDING AND 1 FOLLOWING)
+} {1 {FILTER clause may only be used with aggregate window functions}}
+
+finish_test
diff --git a/test/windowA.test b/test/windowA.test
new file mode 100644
index 0000000000000000000000000000000000000000..e94ae57e43f74d793f46560dddda40220d0d8828
--- /dev/null
+++ b/test/windowA.test
@@ -0,0 +1,309 @@
+# 2019-08-30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# Test cases for RANGE BETWEEN and especially with NULLS LAST
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix windowA
+
+ifcapable !windowfunc {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b CHAR(1), d FLOAT);
+  INSERT INTO t1 VALUES
+   (1, 'A', 5.4),
+   (2, 'B', 5.55),
+   (3, 'C', 8.0),
+   (4, 'D', 10.25),
+   (5, 'E', 10.26),
+   (6, 'N', NULL),
+   (7, 'N', NULL);
+} {}
+
+do_execsql_test 1.1 {
+  SELECT a, b, quote(d), group_concat(b,'') OVER w1 FROM t1
+  WINDOW w1 AS 
+     (ORDER BY d DESC NULLS LAST
+      RANGE BETWEEN 2.50 PRECEDING AND 2.25 FOLLOWING)
+  ORDER BY +d DESC NULLS LAST, +a;
+} [list \
+  5 E 10.26 ED   \
+  4 D 10.25 EDC  \
+  3 C   8.0 EDC  \
+  2 B  5.55 CBA  \
+  1 A   5.4 BA   \
+  6 N  NULL NN   \
+  7 N  NULL NN   \
+]
+
+do_execsql_test 1.2 {
+  SELECT a, b, quote(d), group_concat(b,'') OVER w1 FROM t1
+  WINDOW w1 AS 
+     (ORDER BY d DESC NULLS FIRST
+      RANGE BETWEEN 2.50 PRECEDING AND 2.25 FOLLOWING)
+  ORDER BY +d DESC NULLS FIRST, +a;
+} [list \
+  6 N  NULL NN   \
+  7 N  NULL NN   \
+  5 E 10.26 ED   \
+  4 D 10.25 EDC  \
+  3 C   8.0 EDC  \
+  2 B  5.55 CBA  \
+  1 A   5.4 BA   \
+]
+
+do_execsql_test 1.3 {
+  SELECT a, b, quote(d), group_concat(b,'') OVER w1 FROM t1
+  WINDOW w1 AS 
+     (ORDER BY d DESC NULLS LAST
+      RANGE BETWEEN 2.50 PRECEDING AND UNBOUNDED FOLLOWING)
+  ORDER BY +d DESC NULLS LAST, +a;
+} [list \
+  5 E 10.26 EDCBANN  \
+  4 D 10.25 EDCBANN  \
+  3 C   8.0 EDCBANN  \
+  2 B  5.55 CBANN    \
+  1 A   5.4 BANN     \
+  6 N  NULL NN       \
+  7 N  NULL NN       \
+]
+
+do_execsql_test 1.4 {
+  SELECT a, b, quote(d), group_concat(b,'') OVER w1 FROM t1
+  WINDOW w1 AS 
+     (ORDER BY d DESC NULLS FIRST
+      RANGE BETWEEN 2.50 PRECEDING AND UNBOUNDED FOLLOWING)
+  ORDER BY +d DESC NULLS FIRST, +a;
+} [list \
+  6 N  NULL NNEDCBA  \
+  7 N  NULL NNEDCBA  \
+  5 E 10.26 EDCBA    \
+  4 D 10.25 EDCBA    \
+  3 C   8.0 EDCBA    \
+  2 B  5.55 CBA      \
+  1 A   5.4 BA       \
+]
+
+do_execsql_test 1.5 {
+  SELECT a, b, quote(d), group_concat(b,'') OVER w1 FROM t1
+  WINDOW w1 AS 
+     (ORDER BY d DESC NULLS LAST
+      RANGE BETWEEN 2.50 PRECEDING AND CURRENT ROW)
+  ORDER BY +d DESC NULLS LAST, +a;
+} [list \
+  5 E 10.26 E    \
+  4 D 10.25 ED   \
+  3 C   8.0 EDC  \
+  2 B  5.55 CB   \
+  1 A   5.4 BA   \
+  6 N  NULL NN   \
+  7 N  NULL NN   \
+]
+
+do_execsql_test 1.6 {
+  SELECT a, b, quote(d), group_concat(b,'') OVER w1 FROM t1
+  WINDOW w1 AS 
+     (ORDER BY d DESC NULLS FIRST
+      RANGE BETWEEN 2.50 PRECEDING AND CURRENT ROW)
+  ORDER BY +d DESC NULLS FIRST, +a;
+} [list \
+  6 N  NULL NN   \
+  7 N  NULL NN   \
+  5 E 10.26 E    \
+  4 D 10.25 ED   \
+  3 C   8.0 EDC  \
+  2 B  5.55 CB   \
+  1 A   5.4 BA   \
+]
+
+do_execsql_test 2.1 {
+  SELECT a, b, quote(d), group_concat(b,'') OVER w1 FROM t1
+  WINDOW w1 AS 
+     (ORDER BY d DESC NULLS LAST
+      RANGE BETWEEN UNBOUNDED PRECEDING AND 2.25 FOLLOWING)
+  ORDER BY +d DESC NULLS LAST, +a;
+} [list \
+  5 E 10.26 ED       \
+  4 D 10.25 EDC      \
+  3 C   8.0 EDC      \
+  2 B  5.55 EDCBA    \
+  1 A   5.4 EDCBA    \
+  6 N  NULL EDCBANN  \
+  7 N  NULL EDCBANN  \
+]
+
+do_execsql_test 2.2 {
+  SELECT a, b, quote(d), group_concat(b,'') OVER w1 FROM t1
+  WINDOW w1 AS 
+     (ORDER BY d DESC NULLS FIRST
+      RANGE BETWEEN UNBOUNDED PRECEDING AND 2.25 FOLLOWING)
+  ORDER BY +d DESC NULLS FIRST, +a;
+} [list \
+  6 N  NULL NN         \
+  7 N  NULL NN         \
+  5 E 10.26 NNED       \
+  4 D 10.25 NNEDC      \
+  3 C   8.0 NNEDC      \
+  2 B  5.55 NNEDCBA    \
+  1 A   5.4 NNEDCBA    \
+]
+
+do_execsql_test 2.3 {
+  SELECT a, b, quote(d), group_concat(b,'') OVER w1 FROM t1
+  WINDOW w1 AS 
+     (ORDER BY d DESC NULLS LAST
+      RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING)
+  ORDER BY +d DESC NULLS LAST, +a;
+} [list \
+  5 E 10.26 EDCBANN  \
+  4 D 10.25 EDCBANN  \
+  3 C   8.0 EDCBANN  \
+  2 B  5.55 EDCBANN  \
+  1 A   5.4 EDCBANN  \
+  6 N  NULL EDCBANN  \
+  7 N  NULL EDCBANN  \
+]
+
+do_execsql_test 2.4 {
+  SELECT a, b, quote(d), group_concat(b,'') OVER w1 FROM t1
+  WINDOW w1 AS 
+     (ORDER BY d DESC NULLS FIRST
+      RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING)
+  ORDER BY +d DESC NULLS FIRST, +a;
+} [list \
+  6 N  NULL NNEDCBA  \
+  7 N  NULL NNEDCBA  \
+  5 E 10.26 NNEDCBA  \
+  4 D 10.25 NNEDCBA  \
+  3 C   8.0 NNEDCBA  \
+  2 B  5.55 NNEDCBA  \
+  1 A   5.4 NNEDCBA  \
+]
+
+do_execsql_test 2.5 {
+  SELECT a, b, quote(d), group_concat(b,'') OVER w1 FROM t1
+  WINDOW w1 AS 
+     (ORDER BY d DESC NULLS LAST
+      RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  ORDER BY +d DESC NULLS LAST, +a;
+} [list \
+  5 E 10.26 E        \
+  4 D 10.25 ED       \
+  3 C   8.0 EDC      \
+  2 B  5.55 EDCB     \
+  1 A   5.4 EDCBA    \
+  6 N  NULL EDCBANN  \
+  7 N  NULL EDCBANN  \
+]
+
+do_execsql_test 2.6 {
+  SELECT a, b, quote(d), group_concat(b,'') OVER w1 FROM t1
+  WINDOW w1 AS 
+     (ORDER BY d DESC NULLS FIRST
+      RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
+  ORDER BY +d DESC NULLS FIRST, +a;
+} [list \
+  6 N  NULL NN       \
+  7 N  NULL NN       \
+  5 E 10.26 NNE      \
+  4 D 10.25 NNED     \
+  3 C   8.0 NNEDC    \
+  2 B  5.55 NNEDCB   \
+  1 A   5.4 NNEDCBA  \
+]
+
+
+do_execsql_test 3.1 {
+  SELECT a, b, quote(d), group_concat(b,'') OVER w1 FROM t1
+  WINDOW w1 AS 
+     (ORDER BY d DESC NULLS LAST
+      RANGE BETWEEN CURRENT ROW AND 2.25 FOLLOWING)
+  ORDER BY +d DESC NULLS LAST, +a;
+} [list \
+  5 E 10.26 ED       \
+  4 D 10.25 DC       \
+  3 C   8.0 C        \
+  2 B  5.55 BA       \
+  1 A   5.4 A        \
+  6 N  NULL NN       \
+  7 N  NULL NN       \
+]
+
+do_execsql_test 3.2 {
+  SELECT a, b, quote(d), group_concat(b,'') OVER w1 FROM t1
+  WINDOW w1 AS 
+     (ORDER BY d DESC NULLS FIRST
+      RANGE BETWEEN CURRENT ROW AND 2.25 FOLLOWING)
+  ORDER BY +d DESC NULLS FIRST, +a;
+} [list \
+  6 N  NULL NN       \
+  7 N  NULL NN       \
+  5 E 10.26 ED       \
+  4 D 10.25 DC       \
+  3 C   8.0 C        \
+  2 B  5.55 BA       \
+  1 A   5.4 A        \
+]
+
+do_execsql_test 3.3 {
+  SELECT a, b, quote(d), group_concat(b,'') OVER w1 FROM t1
+  WINDOW w1 AS 
+     (ORDER BY d DESC NULLS LAST
+      RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING)
+  ORDER BY +d DESC NULLS LAST, +a;
+} [list \
+  5 E 10.26 EDCBANN  \
+  4 D 10.25 DCBANN   \
+  3 C   8.0 CBANN    \
+  2 B  5.55 BANN     \
+  1 A   5.4 ANN      \
+  6 N  NULL NN       \
+  7 N  NULL NN       \
+]
+
+do_execsql_test 3.4 {
+  SELECT a, b, quote(d), group_concat(b,'') OVER w1 FROM t1
+  WINDOW w1 AS 
+     (ORDER BY d DESC NULLS FIRST
+      RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING)
+  ORDER BY +d DESC NULLS FIRST, +a;
+} [list \
+  6 N  NULL NNEDCBA  \
+  7 N  NULL NNEDCBA  \
+  5 E 10.26 EDCBA    \
+  4 D 10.25 DCBA     \
+  3 C   8.0 CBA      \
+  2 B  5.55 BA       \
+  1 A   5.4 A        \
+]
+
+do_execsql_test 4.0 {
+  SELECT a, b, quote(d), group_concat(b,'') OVER w1 FROM t1
+  WINDOW w1 AS 
+     (ORDER BY d DESC NULLS FIRST
+      RANGE BETWEEN 2.50 PRECEDING AND 0.5 PRECEDING)
+  ORDER BY +d DESC NULLS FIRST, +a;
+} [list \
+  6 N  NULL NN  \
+  7 N  NULL NN  \
+  5 E 10.26 {}  \
+  4 D 10.25 {}  \
+  3 C   8.0 ED  \
+  2 B  5.55 C   \
+  1 A   5.4 {}  \
+]
+
+
+finish_test
diff --git a/test/windowB.test b/test/windowB.test
new file mode 100644
index 0000000000000000000000000000000000000000..32193a378a6541b51064056c951885a2969e8bbc
--- /dev/null
+++ b/test/windowB.test
@@ -0,0 +1,486 @@
+# 2019-08-30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# Test cases for RANGE BETWEEN and especially with NULLS LAST
+# and for varying separator handling by group_concat().
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix windowB
+
+ifcapable !windowfunc {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b);
+  INSERT INTO t1 VALUES(NULL, 1);
+  INSERT INTO t1 VALUES(NULL, 2);
+  INSERT INTO t1 VALUES(NULL, 3);
+} {}
+
+foreach {tn win} {
+  1 { ORDER BY a RANGE BETWEEN 1 PRECEDING AND 1 FOLLOWING }
+  2 { ORDER BY a NULLS LAST RANGE BETWEEN 1 PRECEDING AND 1 FOLLOWING }
+  3 { ORDER BY a DESC RANGE BETWEEN 1 PRECEDING AND 1 FOLLOWING }
+  4 { ORDER BY a DESC NULLS FIRST RANGE BETWEEN 1 PRECEDING AND 1 FOLLOWING }
+
+  5 { ORDER BY a      NULLS LAST  RANGE BETWEEN 1 FOLLOWING AND 2 FOLLOWING }
+  6 { ORDER BY a DESC NULLS FIRST RANGE BETWEEN 1 FOLLOWING AND 2 FOLLOWING }
+
+  7 { ORDER BY a      NULLS LAST  RANGE BETWEEN 2 PRECEDING AND 1 PRECEDING }
+  8 { ORDER BY a DESC NULLS FIRST RANGE BETWEEN 2 PRECEDING AND 1 PRECEDING }
+} {
+  do_execsql_test 1.$tn "
+    SELECT sum(b) OVER win FROM t1
+    WINDOW win AS ( $win )
+  " {6 6 6}
+}
+
+do_execsql_test 1.2 {
+  SELECT sum(b) OVER win FROM t1
+  WINDOW win AS (
+    ORDER BY a DESC NULLS FIRST RANGE BETWEEN 1 PRECEDING AND 1 FOLLOWING
+  )
+} {6 6 6}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 2.0 {
+  CREATE TABLE t1(a, b);
+  INSERT INTO t1 VALUES(1, NULL);
+  INSERT INTO t1 VALUES(2, 45);
+  INSERT INTO t1 VALUES(3, 66.2);
+  INSERT INTO t1 VALUES(4, 'hello world');
+  INSERT INTO t1 VALUES(5, 'hello world');
+  INSERT INTO t1 VALUES(6, X'1234');
+  INSERT INTO t1 VALUES(7, X'1234');
+  INSERT INTO t1 VALUES(8, NULL);
+}
+
+foreach {tn win} {
+  1 "ORDER BY b RANGE BETWEEN 1 PRECEDING AND 2 PRECEDING"
+  2 "ORDER BY b RANGE BETWEEN 2 FOLLOWING AND 2 FOLLOWING"
+  3 "ORDER BY b NULLS LAST RANGE BETWEEN 1 PRECEDING AND 2 PRECEDING"
+  4 "ORDER BY b NULLS LAST RANGE BETWEEN 2 FOLLOWING AND 2 FOLLOWING"
+} {
+  do_execsql_test 2.1.$tn "
+    SELECT a, sum(a) OVER win FROM t1
+    WINDOW win AS ( $win )
+    ORDER BY 1
+  " {1 9   2 {}  3 {}  4 9  5 9  6 13  7 13  8 9}
+}
+
+#-------------------------------------------------------------------------
+ifcapable json1 {
+  reset_db
+  do_execsql_test 3.0 {
+    CREATE TABLE testjson(id INTEGER PRIMARY KEY, j TEXT, x TEXT);
+    INSERT INTO testjson VALUES(1, '{"a":1}', 'a');
+    INSERT INTO testjson VALUES(2, '{"b":2}', 'b');
+    INSERT INTO testjson VALUES(3, '{"c":3}', 'c');
+    INSERT INTO testjson VALUES(4, '{"d":4}', 'd');
+  }
+  
+  do_execsql_test 3.1 {
+    SELECT json_group_array(json(j)) FROM testjson;
+  } {
+    {[{"a":1},{"b":2},{"c":3},{"d":4}]}
+  }
+  
+  do_execsql_test 3.2 {
+    SELECT json_group_array(json(j)) OVER (ORDER BY id) FROM testjson;
+  } {
+    {[{"a":1}]}
+    {[{"a":1},{"b":2}]}
+    {[{"a":1},{"b":2},{"c":3}]}
+    {[{"a":1},{"b":2},{"c":3},{"d":4}]}
+  }
+  
+  do_execsql_test 3.3 {
+    SELECT json_group_array(json(j)) OVER (
+      ORDER BY id RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW
+      EXCLUDE TIES
+    ) FROM testjson;
+  } {
+    {[{"a":1}]}
+    {[{"a":1},{"b":2}]}
+    {[{"a":1},{"b":2},{"c":3}]}
+    {[{"a":1},{"b":2},{"c":3},{"d":4}]}
+  }
+  
+  do_execsql_test 3.4 {
+    SELECT json_group_array(json(j)) OVER (
+      ORDER BY id ROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING
+    ) FROM testjson;
+  } {
+    {[{"a":1},{"b":2}]}
+    {[{"a":1},{"b":2},{"c":3}]}
+    {[{"b":2},{"c":3},{"d":4}]}
+    {[{"c":3},{"d":4}]}
+  }
+  
+  do_execsql_test 3.5 {
+    SELECT json_group_array(json(j)) OVER (
+      ORDER BY id ROWS BETWEEN 2 PRECEDING AND 1 PRECEDING
+    ) FROM testjson;
+  } {
+    {[]}
+    {[{"a":1}]}
+    {[{"a":1},{"b":2}]}
+    {[{"b":2},{"c":3}]}
+  }
+  
+  do_execsql_test 3.5a {
+    UPDATE testjson SET j = replace(j,char(125),',"e":9'||char(125));
+    SELECT j FROM testjson;
+  } {
+    {{"a":1,"e":9}}
+    {{"b":2,"e":9}}
+    {{"c":3,"e":9}}
+    {{"d":4,"e":9}}
+  }
+  do_execsql_test 3.5b {
+    SELECT group_concat(x,'') OVER (
+      ORDER BY id ROWS BETWEEN 1 FOLLOWING AND 2 FOLLOWING
+    ) FROM testjson ORDER BY id;
+  } {bc cd d {}}
+  do_execsql_test 3.5c {
+    SELECT json_group_array(json(j)) OVER (
+      ORDER BY id ROWS BETWEEN 1 FOLLOWING AND 2 FOLLOWING
+    ) FROM testjson;
+  } {
+    {[{"b":2,"e":9},{"c":3,"e":9}]}
+    {[{"c":3,"e":9},{"d":4,"e":9}]}
+    {[{"d":4,"e":9}]}
+    {[]}
+  }
+  do_execsql_test 3.5d {
+    SELECT json_group_object(x,json(j)) OVER (
+      ORDER BY id ROWS BETWEEN 1 FOLLOWING AND 2 FOLLOWING
+    ) FROM testjson;
+  } {
+    {{"b":{"b":2,"e":9},"c":{"c":3,"e":9}}}
+    {{"c":{"c":3,"e":9},"d":{"d":4,"e":9}}}
+    {{"d":{"d":4,"e":9}}}
+    {{}}
+  }
+  
+  do_execsql_test 3.7b {
+    SELECT group_concat(x,'') FILTER (WHERE id!=2) OVER (
+      ORDER BY id ROWS BETWEEN 2 PRECEDING AND 1 PRECEDING
+    ) FROM testjson;
+  } {{} a a c}
+
+  do_execsql_test 3.7c {
+    SELECT json_group_array(json(j)) FILTER (WHERE id!=2) OVER (
+      ORDER BY id ROWS BETWEEN 2 PRECEDING AND 1 PRECEDING
+    ) FROM testjson
+  } {
+    {[]}
+    {[{"a":1,"e":9}]}
+    {[{"a":1,"e":9}]}
+    {[{"c":3,"e":9}]}
+  }
+  do_execsql_test 3.7d {
+    SELECT json_group_object(x,json(j)) FILTER (WHERE id!=2) OVER (
+      ORDER BY id ROWS BETWEEN 2 PRECEDING AND 1 PRECEDING
+    ) FROM testjson
+  } {
+    {{}}
+    {{"a":{"a":1,"e":9}}}
+    {{"a":{"a":1,"e":9}}}
+    {{"c":{"c":3,"e":9}}}
+  }
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 4.0 {
+  CREATE TABLE x(a);
+  INSERT INTO x VALUES(1);
+  INSERT INTO x VALUES(2);
+}
+
+do_execsql_test 4.1 {
+  WITH y AS (
+      SELECT Row_Number() OVER (win) FROM x WINDOW win AS (PARTITION BY a)
+  )
+  SELECT * FROM y;
+} {
+  1 1
+}
+
+do_catchsql_test 4.2 {
+  WITH y AS (
+    SELECT Row_Number() OVER (win) FROM x WINDOW win AS (PARTITION
+  BY fake_column))
+  SELECT * FROM y;
+} {1 {no such column: fake_column}}
+
+do_catchsql_test 4.3 {
+  SELECT 1 WINDOW win AS (PARTITION BY fake_column);
+} {0 1}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 5.0 {
+  CREATE TABLE t1(a, c);
+  CREATE INDEX i1 ON t1(a);
+
+  INSERT INTO t1 VALUES(0, 421);
+  INSERT INTO t1 VALUES(1, 844);
+  INSERT INTO t1 VALUES(2, 1001);
+}
+
+do_execsql_test 5.1 {
+  SELECT a, sum(c) OVER (
+    ORDER BY a RANGE BETWEEN 0 PRECEDING AND 3 PRECEDING
+  ) FROM t1;
+} {0 {} 1 {} 2 {}}
+
+do_execsql_test 5.2 {
+  INSERT INTO t1 VALUES(NULL, 123);
+  INSERT INTO t1 VALUES(NULL, 111);
+  INSERT INTO t1 VALUES('xyz', 222);
+  INSERT INTO t1 VALUES('xyz', 333);
+
+  SELECT a, sum(c) OVER (
+    ORDER BY a RANGE BETWEEN 0 PRECEDING AND 3 PRECEDING
+  ) FROM t1;
+} {{} 234 {} 234 0 {} 1 {} 2 {} xyz 555 xyz 555}
+
+do_execsql_test 5.3 {
+  SELECT a, sum(c) OVER (
+    ORDER BY a RANGE BETWEEN 2 FOLLOWING AND 0 FOLLOWING
+  ) FROM t1;
+} {{} 234 {} 234 0 {} 1 {} 2 {} xyz 555 xyz 555}
+
+do_execsql_test 5.4 {
+  SELECT a, sum(c) OVER (
+    ORDER BY a RANGE BETWEEN 0 PRECEDING AND 3 PRECEDING EXCLUDE NO OTHERS
+  ) FROM t1;
+} {{} 234 {} 234 0 {} 1 {} 2 {} xyz 555 xyz 555}
+
+do_execsql_test 5.5 {
+  SELECT a, sum(c) OVER (
+    ORDER BY a RANGE BETWEEN 2 FOLLOWING AND 0 FOLLOWING EXCLUDE NO OTHERS
+  ) FROM t1;
+} {{} 234 {} 234 0 {} 1 {} 2 {} xyz 555 xyz 555}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 6.0 {
+  CREATE TABLE t1(a, c);
+  CREATE INDEX i1 ON t1(a);
+
+  INSERT INTO t1 VALUES(7,  997);
+  INSERT INTO t1 VALUES(8,  997);
+  INSERT INTO t1 VALUES('abc', 1001);
+}
+do_execsql_test 6.1 {
+  SELECT a, sum(c) OVER (
+    ORDER BY a RANGE BETWEEN 2 FOLLOWING AND 0 FOLLOWING 
+  ) FROM t1;
+} {7 {} 8 {} abc 1001} 
+do_execsql_test 6.2 {
+  SELECT a, sum(c) OVER (
+    ORDER BY a RANGE BETWEEN 2 FOLLOWING AND 0 FOLLOWING EXCLUDE NO OTHERS
+  ) FROM t1;
+} {7 {} 8 {} abc 1001} 
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 7.0 {
+  CREATE TABLE t1(a, c);
+  CREATE INDEX i1 ON t1(a);
+
+  INSERT INTO t1 VALUES(NULL, 46);
+  INSERT INTO t1 VALUES(NULL, 45);
+  INSERT INTO t1 VALUES(7,  997);
+  INSERT INTO t1 VALUES(7,  1000);
+  INSERT INTO t1 VALUES(8,  997);
+  INSERT INTO t1 VALUES(8,  1000);
+  INSERT INTO t1 VALUES('abc', 1001);
+  INSERT INTO t1 VALUES('abc', 1004);
+  INSERT INTO t1 VALUES('xyz', 3333);
+}
+
+do_execsql_test 7.1 {
+  SELECT a, max(c) OVER (
+    ORDER BY a RANGE BETWEEN 2 FOLLOWING AND 0 FOLLOWING
+  ) FROM t1;
+} {{} 46 {} 46  7 {} 7 {} 8 {} 8 {}  abc 1004 abc 1004 xyz 3333}
+do_execsql_test 7.2 {
+  SELECT a, min(c) OVER (
+    ORDER BY a RANGE BETWEEN 2 FOLLOWING AND 0 FOLLOWING
+  ) FROM t1;
+} {{} 45 {} 45  7 {} 7 {} 8 {} 8 {}  abc 1001 abc 1001 xyz 3333}
+
+do_execsql_test 7.3 {
+  SELECT a, max(c) OVER (
+    ORDER BY a RANGE BETWEEN 0 PRECEDING AND 2 PRECEDING
+  ) FROM t1;
+} {{} 46 {} 46  7 {} 7 {} 8 {} 8 {}  abc 1004 abc 1004 xyz 3333}
+do_execsql_test 7.4 {
+  SELECT a, min(c) OVER (
+    ORDER BY a RANGE BETWEEN 0 PRECEDING AND 2 PRECEDING
+  ) FROM t1;
+} {{} 45 {} 45  7 {} 7 {} 8 {} 8 {}  abc 1001 abc 1001 xyz 3333}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 8.0 {
+  BEGIN TRANSACTION;
+    CREATE TABLE t1(a, c);
+    INSERT INTO t1 VALUES('aa', 111);
+    INSERT INTO t1 VALUES('BB', 660);
+    INSERT INTO t1 VALUES('CC', 938);
+    INSERT INTO t1 VALUES('dd', 979);
+  COMMIT;
+
+  CREATE INDEX i1 ON t1(a COLLATE nocase);
+}
+
+do_execsql_test 8.1 {
+  SELECT sum(c) OVER
+    (ORDER BY a COLLATE nocase RANGE BETWEEN 10.0 PRECEDING AND 5.0 PRECEDING)
+  FROM t1;
+} {111 660 938 979}
+
+do_execsql_test 9.0 {
+  CREATE TABLE seps(x);
+  INSERT INTO seps(x) VALUES ('1'), ('22'), ('333'), ('4444');
+  SELECT group_concat('-', x)
+    OVER ( ORDER BY x ROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING )
+  FROM seps;
+} {-22- -22-333- -333-4444- -4444-}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 10.1 {
+  CREATE TABLE t1(i INTEGER PRIMARY KEY, v);
+  INSERT INTO t1 VALUES( 1, 'one' );
+  INSERT INTO t1 VALUES( 2, 'two' );
+}
+
+do_execsql_test 10.2 {
+  SELECT 
+    json_group_array( v ) OVER w,
+    json_group_array( v ) OVER w
+  FROM t1
+  window w as ( 
+    range between unbounded preceding and unbounded following 
+  )
+} {
+  {["one","two"]} 
+  {["one","two"]} 
+  {["one","two"]} 
+  {["one","two"]} 
+}
+
+do_execsql_test 10.3 {
+  SELECT 
+    group_concat( v ) OVER w,
+    json_group_array( v ) OVER w,
+    json_group_array( v ) OVER w,
+    group_concat( v ) OVER w
+  FROM t1
+  window w as ( 
+    range between unbounded preceding and unbounded following 
+  )
+} {
+  one,two
+  {["one","two"]} 
+  {["one","two"]} 
+  one,two
+
+  one,two
+  {["one","two"]} 
+  {["one","two"]} 
+  one,two
+}
+
+ifcapable json1&&vtab {
+if {[permutation]!="no_optimization"} {
+
+  do_execsql_test 11.0 {
+    SELECT value FROM json_each('[1,2,3,4,5]');
+  } {1 2 3 4 5}
+
+  do_execsql_test 11.1 {
+    SELECT key, value FROM json_each('[1,2,3,4,5]');
+  } {0 1  1 2  2 3  3 4  4 5}
+  do_execsql_test 11.2 {
+    SELECT rowid, value FROM json_each('[1,2,3,4,5]');
+  } {0 1  1 2  2 3  3 4  4 5}
+
+  do_execsql_test 11.3 {
+    SELECT sum(value) OVER (ORDER BY rowid) FROM json_each('[1,2,3,4,5]')
+  } {1 3 6 10 15}
+
+  do_execsql_test 11.4 {
+    SELECT sum(value) OVER (
+        ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW
+    ) FROM json_each('[1,2,3,4,5]')
+  } {1 3 6 10 15}
+
+  do_eqp_test 11.5 {
+    SELECT sum(value) OVER (
+        ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW
+    ) FROM json_each('[1,2,3,4,5]')
+  } {
+    QUERY PLAN
+      |--CO-ROUTINE (subquery-xxxxxx)
+      |  `--SCAN json_each VIRTUAL TABLE INDEX 1:
+      `--SCAN (subquery-xxxxxx)
+  }
+
+  do_eqp_test 11.6 {
+    SELECT sum(value) OVER (ORDER BY rowid) FROM json_each('[1,2,3,4,5]')
+  } {
+    QUERY PLAN
+      |--CO-ROUTINE (subquery-xxxxxx)
+      |  `--SCAN json_each VIRTUAL TABLE INDEX 1:
+      `--SCAN (subquery-xxxxxx)
+  }
+
+  do_eqp_test 11.8 {
+    SELECT sum(value) OVER (ORDER BY rowid DESC) FROM json_each('[1,2,3,4,5]')
+  } {
+    QUERY PLAN
+      |--CO-ROUTINE (subquery-xxxxxx)
+      |  |--SCAN json_each VIRTUAL TABLE INDEX 1:
+      |  `--USE TEMP B-TREE FOR ORDER BY
+      `--SCAN (subquery-xxxxxx)
+  }
+
+  do_execsql_test 11.9 {
+    SELECT sum(value) OVER (ORDER BY rowid DESC) FROM json_each('[1,2,3,4,5]')
+  } {5 9 12 14 15}
+
+  do_execsql_test 11.10 {
+    SELECT sum(value) OVER (ORDER BY value ASC) FROM json_each('[2,1,4,3,5]')
+  } {1 3 6 10 15}
+  do_eqp_test 11.11 {
+    SELECT sum(value) OVER (ORDER BY value ASC) FROM json_each('[2,1,4,3,5]')
+  } {
+    QUERY PLAN
+      |--CO-ROUTINE (subquery-xxxxxx)
+      |  |--SCAN json_each VIRTUAL TABLE INDEX 1:
+      |  `--USE TEMP B-TREE FOR ORDER BY
+      `--SCAN (subquery-xxxxxx)
+  }
+}}
+
+finish_test
+
diff --git a/test/windowC.test b/test/windowC.test
new file mode 100644
index 0000000000000000000000000000000000000000..013876f9b3ab57e415e2f927e7a2f324bfb3e955
--- /dev/null
+++ b/test/windowC.test
@@ -0,0 +1,85 @@
+# 2021-09-29
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# Test cases for varying separator handling by group_concat().
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix windowC
+
+ifcapable !windowfunc {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE TABLE x1(i INTEGER PRIMARY KEY, x);
+}
+
+foreach {tn bBlob seps} {
+  1 0 {a b c def g}
+  2 0 {abcdefg {} {} abcdefg}
+  3 0 {a bc def ghij klmno pqrstu}
+  4 1 {a bc def ghij klmno pqrstu}
+  5 1 {, , , , , , , , , , , , ....... , ,}
+} {
+  foreach type {text blob} {
+    do_test 1.$type.$tn.1 {
+      execsql { DELETE FROM x1 }
+      foreach s $seps {
+        if {$type=="text"} {
+          execsql {INSERT INTO x1 VALUES(NULL, $s)}
+        } else {
+          execsql {INSERT INTO x1 VALUES(NULL, CAST ($s AS blob))}
+        }
+      }
+    } {}
+
+    foreach {tn2 win} {
+      1     "ROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING"
+      2     "ROWS BETWEEN 2 PRECEDING AND CURRENT ROW"
+      3     "ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING"
+    } {
+      do_test 1.$type.$tn.2.$tn2 {
+        db eval "
+          SELECT group_concat('val', x) OVER ( ORDER BY i $win ) AS val FROM x1
+          " {
+            if {[string range $val 0 2]!="val"
+              || [string range $val end-2 end]!="val"
+            } {
+              error "unexpected return value: $val"
+            }
+          }
+      } {} 
+    }
+  }
+}
+
+# 2021-10-12 dbsqlfuzz 6c31db077a14149a7b22a1069294bdb068be8a96
+#
+reset_db
+do_execsql_test 2.0 {
+  PRAGMA encoding=UTF16le;
+  WITH separator(x) AS (VALUES(',a,'),(',bc,')),
+       value(y) AS (VALUES(1),(x'5585d09013455178cd11ce4a'))
+  SELECT group_concat(y,x) OVER (ORDER BY x ROWS BETWEEN 1 PRECEDING AND 1 PRECEDING)
+  FROM separator, value;
+} {{} 1 蕕郐䔓硑ᇍ䫎 1}
+reset_db
+do_execsql_test 2.1 {
+  PRAGMA encoding=UTF16be;
+  WITH separator(x) AS (VALUES(',a,'),(',bc,')),
+       value(y) AS (VALUES(1),(x'5585d09013455178cd11ce4a'))
+  SELECT group_concat(y,x) OVER (ORDER BY x ROWS BETWEEN 1 PRECEDING AND 1 PRECEDING)
+  FROM separator, value;
+} {{} 1 喅킐ፅ典촑칊 1}
+
+finish_test
diff --git a/test/windowD.test b/test/windowD.test
new file mode 100644
index 0000000000000000000000000000000000000000..f2ec36a443cc8a3c3c5687fd808178e6ba75bed6
--- /dev/null
+++ b/test/windowD.test
@@ -0,0 +1,94 @@
+# 2022 June 2
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix windowD
+
+
+do_execsql_test 1.0 {
+  CREATE TABLE t0(c0 TEXT);
+  CREATE VIEW v0(c0, c1) 
+    AS SELECT CUME_DIST() OVER (PARTITION BY t0.c0), TRUE FROM t0;
+  INSERT INTO t0 VALUES ('x');
+}
+
+do_execsql_test 1.1 {
+  SELECT ('500') IS (v0.c1) FROM v0;
+} {
+  0
+}
+
+do_execsql_test 1.2 {
+  SELECT (('500') IS (v0.c1)) FROM v0, t0;
+} {
+  0
+}
+
+do_execsql_test 1.2 {
+  SELECT (('500') IS (v0.c1)) IS FALSE FROM v0;
+} {
+  1
+}
+
+do_execsql_test 1.3 {
+  SELECT * FROM v0;
+} {
+  1.0 1
+}
+
+do_execsql_test 1.4 {
+  SELECT * FROM v0 WHERE ('500' IS v0.c1) IS FALSE;
+} {
+  1.0 1
+}
+
+#-------------------------------------------------------------------------
+
+reset_db
+do_execsql_test 2.0 {
+  CREATE TABLE t1(x);
+  INSERT INTO t1 VALUES('value');
+  CREATE VIEW v1(a, b, c, d) AS SELECT 1, 2, TRUE, FALSE FROM t1;
+}
+
+do_execsql_test 2.1 {
+  SELECT 500 IS a, 500 IS b, 500 IS c, 500 IS d FROM v1
+} {0 0 0 0}
+
+do_execsql_test 2.2 {
+  SELECT * FROM v1 WHERE 500 IS c;
+} {}
+
+do_execsql_test 2.3 {
+  SELECT * FROM v1 WHERE 500 IS d;
+} {}
+
+do_execsql_test 2.4 {
+  CREATE VIEW v2 AS SELECT max(x) OVER () AS a, TRUE AS c FROM t1;
+}
+
+do_execsql_test 2.5 {
+  SELECT 500 IS c FROM v2;
+} 0
+
+do_execsql_test 2.6 {
+  SELECT * FROM v2 WHERE 500 IS c;
+} {}
+
+
+
+
+
+
+finish_test
+
diff --git a/test/windowE.test b/test/windowE.test
new file mode 100644
index 0000000000000000000000000000000000000000..1cb67f56b05bd2917e5ce378cb7f07f51ea42622
--- /dev/null
+++ b/test/windowE.test
@@ -0,0 +1,110 @@
+# 2022 October 18
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix windowE
+
+proc custom {a b} { return [string compare $a $b] }
+db collate custom custom
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b TEXT COLLATE custom);
+  INSERT INTO t1 VALUES(1, 'one');
+  INSERT INTO t1 VALUES(2, 'two');
+  INSERT INTO t1 VALUES(3, 'three');
+  INSERT INTO t1 VALUES(4, 'four');
+  INSERT INTO t1 VALUES(5, 'five');
+  INSERT INTO t1 VALUES(6, 'six');
+  CREATE INDEX t1b ON t1(b);
+}
+
+do_execsql_test 1.1 {
+  SELECT * FROM t1
+} {
+  1 one 2 two 3 three 4 four 5 five 6 six
+}
+
+do_execsql_test 1.2 {
+  SELECT group_concat(a,',') OVER win FROM t1 
+  WINDOW win AS (
+    ORDER BY b RANGE BETWEEN 1 PRECEDING AND 2 PRECEDING
+  )
+} {
+  5 4 1 6 3 2
+}
+
+proc custom {a b} { return [string compare $b $a] }
+
+do_execsql_test 1.3 {
+  SELECT group_concat(a,',') OVER win FROM t1 
+  WINDOW win AS (
+    ORDER BY b RANGE BETWEEN 1 PRECEDING AND 2 PRECEDING
+  )
+} {
+  5 5,4 5,4,1 5,4,1,6 5,4,1,6,3 5,4,1,6,3,2
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 2.0 {
+  CREATE TABLE t1(x);
+}
+
+sqlite3_create_aggregate db
+
+breakpoint
+do_catchsql_test 2.1 {
+  SELECT min(x) OVER w1 FROM t1
+    WINDOW w1 AS (PARTITION BY x_count(x) OVER w1);
+} {1 {x_count() may not be used as a window function}}
+
+do_catchsql_test 2.2 {
+  SELECT min(x) FILTER (WHERE x_count(x) OVER w1) OVER w1 FROM t1
+    WINDOW w1 AS (PARTITION BY x OVER w1);
+} {1 {near "OVER": syntax error}}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 3.0 {
+  BEGIN TRANSACTION;
+    CREATE TABLE t2(c1 INT, c2 REAL);
+    INSERT INTO t2 VALUES
+    (447,0.0), (448,0.0), (449,0.0), (452,0.0), (453,0.0), (454,0.0), (455,0.0),
+    (456,0.0), (459,0.0), (460,0.0), (462,0.0), (463,0.0), (466,0.0), (467,0.0),
+    (468,0.0), (469,0.0), (470,0.0), (473,0.0), (474,0.0), (475,0.0), (476,0.0),
+    (477,0.0), (480,0.0), (481,0.0), (482,0.0), (483,0.0), (484,0.0), (487,0.0),
+    (488,0.0), (489,0.0), (490,0.0), (491,0.0), (494,0.0), (495,0.0), (496,0.0),
+    (497,0.0), (498,0.0), (501,0.0), (502,0.0), (503,0.0), (504,0.0), (505,0.0),
+    (508,0.0), (509,0.0), (510,0.0), (511,0.0), (512,0.0), (515,0.0), (516,0.0),
+    (517,0.0), (518,0.0), (519,0.0), (522,0.0), (523,0.0), (524,0.0), (525,0.0),
+    (526,0.0), (529,0.0), (530,0.0), (531,0.0), (532,0.0), (533,0.0), (536,0.0),
+    (537,1.0), (538,0.0), (539,0.0), (540,0.0), (543,0.0), (544,0.0);
+  COMMIT;
+}
+
+do_execsql_test 3.1 {
+  select c1, max(c2) over (order by c1 range 366.0 preceding) from t2;
+} {
+  447 0.0 448 0.0 449 0.0 452 0.0 453 0.0 454 0.0 455 0.0 456 0.0 459 0.0 
+  460 0.0 462 0.0 463 0.0 466 0.0 467 0.0 468 0.0 469 0.0 470 0.0 473 0.0 
+  474 0.0 475 0.0 476 0.0 477 0.0 480 0.0 481 0.0 482 0.0 483 0.0 484 0.0 
+  487 0.0 488 0.0 489 0.0 490 0.0 491 0.0 494 0.0 495 0.0 496 0.0 497 0.0 
+  498 0.0 501 0.0 502 0.0 503 0.0 504 0.0 505 0.0 508 0.0 509 0.0 510 0.0 
+  511 0.0 512 0.0 515 0.0 516 0.0 517 0.0 518 0.0 519 0.0 522 0.0 523 0.0 
+  524 0.0 525 0.0 526 0.0 529 0.0 530 0.0 531 0.0 532 0.0 533 0.0 536 0.0 
+  537 1.0 538 1.0 539 1.0 540 1.0 543 1.0 544 1.0
+}
+
+
+finish_test
+
diff --git a/test/windowerr.tcl b/test/windowerr.tcl
new file mode 100644
index 0000000000000000000000000000000000000000..294e68dc1811295f4fa3768ab4f371c48710aa66
--- /dev/null
+++ b/test/windowerr.tcl
@@ -0,0 +1,72 @@
+# 2018 May 19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+source [file join [file dirname $argv0] pg_common.tcl]
+
+#=========================================================================
+
+start_test windowerr "2019 March 01"
+ifcapable !windowfunc
+
+execsql_test 1.0 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a INTEGER, b INTEGER);
+  INSERT INTO t1 VALUES(1, 1);
+  INSERT INTO t1 VALUES(2, 2);
+  INSERT INTO t1 VALUES(3, 3);
+  INSERT INTO t1 VALUES(4, 4);
+  INSERT INTO t1 VALUES(5, 5);
+}
+
+foreach {tn frame} {
+  1 "ORDER BY a ROWS BETWEEN -1 PRECEDING AND 1 FOLLOWING"
+  2 "ORDER BY a ROWS BETWEEN  1 PRECEDING AND -1 FOLLOWING"
+
+  3 "ORDER BY a RANGE BETWEEN -1 PRECEDING AND 1 FOLLOWING"
+  4 "ORDER BY a RANGE BETWEEN  1 PRECEDING AND -1 FOLLOWING"
+
+  5 "ORDER BY a GROUPS BETWEEN -1 PRECEDING AND 1 FOLLOWING"
+  6 "ORDER BY a GROUPS BETWEEN  1 PRECEDING AND -1 FOLLOWING"
+
+  7 "ORDER BY a,b RANGE BETWEEN  1 PRECEDING AND 1 FOLLOWING"
+
+  8 "PARTITION BY a RANGE BETWEEN  1 PRECEDING AND 1 FOLLOWING"
+} {
+  errorsql_test 1.$tn "
+  SELECT a, sum(b) OVER (
+    $frame
+  ) FROM t1 ORDER BY 1
+  "
+}
+errorsql_test 2.1 {
+  SELECT sum( sum(a) OVER () ) FROM t1;
+}
+
+errorsql_test 2.2 {
+  SELECT sum(a) OVER () AS xyz FROM t1 ORDER BY sum(xyz);
+}
+
+errorsql_test 3.0 {
+  SELECT sum(a) OVER win FROM t1
+  WINDOW win AS (ROWS BETWEEN 'hello' PRECEDING AND 10 FOLLOWING)
+}
+errorsql_test 3.2 {
+  SELECT sum(a) OVER win FROM t1
+  WINDOW win AS (ROWS BETWEEN 10 PRECEDING AND x'ABCD' FOLLOWING)
+}
+
+errorsql_test 3.3 {
+  SELECT row_number(a) OVER () FROM t1;
+}
+
+finish_test
+
diff --git a/test/windowerr.test b/test/windowerr.test
new file mode 100644
index 0000000000000000000000000000000000000000..40d994de85a40dfa09fe50947cc4b612044d3256
--- /dev/null
+++ b/test/windowerr.test
@@ -0,0 +1,116 @@
+# 2019 March 01
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+
+####################################################
+# DO NOT EDIT! THIS FILE IS AUTOMATICALLY GENERATED!
+####################################################
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix windowerr
+
+ifcapable !windowfunc { finish_test ; return }
+do_execsql_test 1.0 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a INTEGER, b INTEGER);
+  INSERT INTO t1 VALUES(1, 1);
+  INSERT INTO t1 VALUES(2, 2);
+  INSERT INTO t1 VALUES(3, 3);
+  INSERT INTO t1 VALUES(4, 4);
+  INSERT INTO t1 VALUES(5, 5);
+} {}
+
+# PG says ERROR:  frame starting offset must not be negative
+do_test 1.1 { catch { execsql {
+  SELECT a, sum(b) OVER (
+    ORDER BY a ROWS BETWEEN -1 PRECEDING AND 1 FOLLOWING
+  ) FROM t1 ORDER BY 1
+} } } 1
+
+# PG says ERROR:  frame ending offset must not be negative
+do_test 1.2 { catch { execsql {
+  SELECT a, sum(b) OVER (
+    ORDER BY a ROWS BETWEEN  1 PRECEDING AND -1 FOLLOWING
+  ) FROM t1 ORDER BY 1
+} } } 1
+
+# PG says ERROR:  invalid preceding or following size in window function
+do_test 1.3 { catch { execsql {
+  SELECT a, sum(b) OVER (
+    ORDER BY a RANGE BETWEEN -1 PRECEDING AND 1 FOLLOWING
+  ) FROM t1 ORDER BY 1
+} } } 1
+
+# PG says ERROR:  invalid preceding or following size in window function
+do_test 1.4 { catch { execsql {
+  SELECT a, sum(b) OVER (
+    ORDER BY a RANGE BETWEEN  1 PRECEDING AND -1 FOLLOWING
+  ) FROM t1 ORDER BY 1
+} } } 1
+
+# PG says ERROR:  frame starting offset must not be negative
+do_test 1.5 { catch { execsql {
+  SELECT a, sum(b) OVER (
+    ORDER BY a GROUPS BETWEEN -1 PRECEDING AND 1 FOLLOWING
+  ) FROM t1 ORDER BY 1
+} } } 1
+
+# PG says ERROR:  frame ending offset must not be negative
+do_test 1.6 { catch { execsql {
+  SELECT a, sum(b) OVER (
+    ORDER BY a GROUPS BETWEEN  1 PRECEDING AND -1 FOLLOWING
+  ) FROM t1 ORDER BY 1
+} } } 1
+
+# PG says ERROR:  RANGE with offset PRECEDING/FOLLOWING requires exactly one ORDER BY column
+do_test 1.7 { catch { execsql {
+  SELECT a, sum(b) OVER (
+    ORDER BY a,b RANGE BETWEEN  1 PRECEDING AND 1 FOLLOWING
+  ) FROM t1 ORDER BY 1
+} } } 1
+
+# PG says ERROR:  RANGE with offset PRECEDING/FOLLOWING requires exactly one ORDER BY column
+do_test 1.8 { catch { execsql {
+  SELECT a, sum(b) OVER (
+    PARTITION BY a RANGE BETWEEN  1 PRECEDING AND 1 FOLLOWING
+  ) FROM t1 ORDER BY 1
+} } } 1
+
+# PG says ERROR:  aggregate function calls cannot contain window function calls
+do_test 2.1 { catch { execsql {
+  SELECT sum( sum(a) OVER () ) FROM t1;
+} } } 1
+
+# PG says ERROR:  column "xyz" does not exist
+do_test 2.2 { catch { execsql {
+  SELECT sum(a) OVER () AS xyz FROM t1 ORDER BY sum(xyz);
+} } } 1
+
+# PG says ERROR:  invalid input syntax for integer: "hello"
+do_test 3.0 { catch { execsql {
+  SELECT sum(a) OVER win FROM t1
+  WINDOW win AS (ROWS BETWEEN 'hello' PRECEDING AND 10 FOLLOWING)
+} } } 1
+
+# PG says ERROR:  argument of ROWS must be type bigint, not type bit
+do_test 3.2 { catch { execsql {
+  SELECT sum(a) OVER win FROM t1
+  WINDOW win AS (ROWS BETWEEN 10 PRECEDING AND x'ABCD' FOLLOWING)
+} } } 1
+
+# PG says ERROR:  function row_number(integer) does not exist
+do_test 3.3 { catch { execsql {
+  SELECT row_number(a) OVER () FROM t1;
+} } } 1
+
+finish_test
diff --git a/test/windowfault.test b/test/windowfault.test
new file mode 100644
index 0000000000000000000000000000000000000000..5340ce08fd9dfc4daa0148fc8ce362ed2ea11154
--- /dev/null
+++ b/test/windowfault.test
@@ -0,0 +1,334 @@
+# 2018 May 8
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix windowfault
+
+ifcapable !windowfunc {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b, c, d);
+  INSERT INTO t1 VALUES(1, 2, 3, 4);
+  INSERT INTO t1 VALUES(5, 6, 7, 8);
+  INSERT INTO t1 VALUES(9, 10, 11, 12);
+}
+faultsim_save_and_close
+
+do_faultsim_test 1 -start 1 -faults oom-t* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql {
+    SELECT row_number() OVER win,
+           rank() OVER win,
+           dense_rank() OVER win,
+           ntile(2) OVER win,
+           first_value(d) OVER win,
+           last_value(d) OVER win,
+           nth_value(d,2) OVER win,
+           lead(d) OVER win,
+           lag(d) OVER win,
+           max(d) OVER win,
+           min(d) OVER win
+    FROM t1
+    WINDOW win AS (ORDER BY a)
+  }
+} -test {
+  faultsim_test_result {0 {1 1 1 1 4 4 {} 8 {} 4 4 2 2 2 1 4 8 8 12 4 8 4 3 3 3 2 4 12 8 {} 8 12 4}}
+}
+
+do_faultsim_test 1.1 -faults oom-t* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql {
+    SELECT row_number() OVER win,
+           rank() OVER win,
+           dense_rank() OVER win
+    FROM t1
+    WINDOW win AS (PARTITION BY c<7 ORDER BY a)
+  }
+} -test {
+  faultsim_test_result {0 {1 1 1 2 2 2 1 1 1}}
+}
+
+do_faultsim_test 1.2 -faults oom-t* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql {
+    SELECT ntile(105) 
+    OVER ( RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) 
+    FROM t1
+  }
+} -test {
+  faultsim_test_result {0 {1 2 3}}
+}
+
+do_faultsim_test 2 -start 1 -faults oom-* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql {
+    SELECT round(percent_rank() OVER win, 2),
+           round(cume_dist() OVER win, 2)
+    FROM t1
+    WINDOW win AS (ORDER BY a)
+  }
+} -test {
+  faultsim_test_result {0 {0.0 0.33 0.5 0.67 1.0 1.0}}
+}
+
+do_faultsim_test 3 -faults oom-* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql {
+    SELECT min(d) OVER win, max(d) OVER win
+    FROM t1
+    WINDOW win AS (ORDER BY a RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING)
+  }
+} -test {
+  faultsim_test_result {0 {4 12 8 12 12 12}}
+}
+
+do_faultsim_test 4 -faults oom-* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql {
+    CREATE VIEW aaa AS
+    SELECT min(d) OVER w, max(d) OVER w
+    FROM t1
+    WINDOW w AS (ORDER BY a RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING);
+    SELECT * FROM aaa;
+  }
+} -test {
+  faultsim_test_result {0 {4 12 8 12 12 12}}
+}
+
+do_faultsim_test 5 -start 1 -faults oom-* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql {
+    SELECT last_value(a) OVER win1,
+           last_value(a) OVER win2
+    FROM t1
+    WINDOW win1 AS (ORDER BY a ROWS BETWEEN CURRENT ROW AND 1 FOLLOWING),
+           win2 AS (ORDER BY a)
+  }
+} -test {
+  faultsim_test_result {0 {5 1 9 5 9 9}}
+}
+
+do_faultsim_test 6 -faults oom-* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql {
+    SELECT percent_rank() OVER (), cume_dist() OVER () FROM t1
+  }
+} -test {
+  faultsim_test_result {0 {0.0 1.0 0.0 1.0 0.0 1.0}}
+}
+
+do_faultsim_test 7 -faults oom-* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql {
+    SELECT percent_rank() OVER (), cume_dist() OVER () FROM t1
+  }
+} -test {
+  faultsim_test_result {0 {0.0 1.0 0.0 1.0 0.0 1.0}}
+}
+
+do_faultsim_test 8 -faults oom-t* -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql {
+    SELECT a, sum(b) OVER win1 FROM t1
+      WINDOW win1 AS (PARTITION BY a ),
+             win2 AS (PARTITION BY b )
+    ORDER BY a;
+  }
+} -test {
+  faultsim_test_result {0 {1 2 5 6 9 10}}
+}
+
+#-------------------------------------------------------------------------
+# The following test causes a cursor in REQURESEEK state to be passed
+# to sqlite3BtreeDelete(). An error is simulated within the seek operation
+# to restore the cursors position.
+#
+reset_db
+set big [string repeat x 900]
+do_execsql_test 9.0 {
+  PRAGMA page_size = 512;
+  PRAGMA cache_size = 2;
+  CREATE TABLE t(x INTEGER PRIMARY KEY, y TEXT);
+  WITH s(i) AS (
+    VALUES(1) UNION ALL SELECT i+1 FROM s WHERE i<1900
+  )
+  INSERT INTO t(y) SELECT $big FROM s;
+}
+db close
+
+testvfs tvfs -default 1
+tvfs script vfs_callback
+tvfs filter xRead
+
+sqlite3 db test.db
+proc vfs_callback {method file args} {
+  if {$file=="" && [info exists ::tmp_read_fail]} {
+    incr ::tmp_read_fail -1
+    if {$::tmp_read_fail<=0} {
+      return "SQLITE_IOERR"
+    }
+  }
+  return "SQLITE_OK"
+}
+
+set FAULTSIM(tmpread) [list                \
+  -injectstart   tmpread_injectstart       \
+  -injectstop    tmpread_injectstop        \
+  -injecterrlist {{1 {disk I/O error}}}    \
+]
+proc tmpread_injectstart {iFail} {
+  set ::tmp_read_fail $iFail
+}
+proc tmpread_injectstop {} {
+  set ret [expr $::tmp_read_fail<=0]
+  unset -nocomplain ::tmp_read_fail 
+  return $ret
+}
+
+set L [db eval {SELECT 0.0 FROM t}]
+do_faultsim_test 9 -end 25 -faults tmpread -body {
+  execsql {
+    SELECT sum(y) OVER win FROM t
+    WINDOW win AS (
+      ORDER BY x ROWS BETWEEN UNBOUNDED PRECEDING AND 1800 FOLLOWING
+    )
+  }
+} -test {
+  faultsim_test_result [list 0 $::L]
+}
+
+catch {db close}
+tvfs delete
+
+reset_db
+do_execsql_test 10.0 {
+  CREATE TABLE t1(a, b, c, d);
+  CREATE TABLE t2(a, b, c, d);
+}
+
+do_faultsim_test 10 -faults oom* -prep {
+} -body {
+  execsql {
+    SELECT row_number() OVER win
+    FROM t1
+    WINDOW win AS (
+      ORDER BY (
+        SELECT percent_rank() OVER win2 FROM t2
+        WINDOW win2 AS (ORDER BY a)
+      )
+    )
+  }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 11.0 {
+  DROP TABLE IF EXISTS t0;
+  CREATE TABLE t0(c0 INTEGER UNIQUE);
+  INSERT INTO t0 VALUES(0);
+} {}
+
+do_faultsim_test 11.1 -faults oom* -prep {
+} -body {
+  execsql {
+    SELECT * FROM t0 WHERE 
+      (0, t0.c0) IN (SELECT DENSE_RANK() OVER(), LAG(0) OVER() FROM t0);
+  }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+do_faultsim_test 11.2 -faults oom* -prep {
+} -body {
+  execsql {
+    VALUES(false),(current_date collate binary) 
+    intersect 
+    values(count() not like group_concat(cast(cast(0e00 as text) as integer) <= NULL || 0.4e-0 || 0x8 & true ) over () collate rtrim);
+  }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 12.0 {
+  CREATE TABLE t1(a, b, c);
+} {}
+do_faultsim_test 12 -faults oom* -prep {
+} -body {
+  execsql {
+    WITH v(a, b, row_number) AS (
+      SELECT a, b, row_number() OVER (PARTITION BY a COLLATE nocase ORDER BY b) FROM t1
+    )
+    SELECT * FROM v WHERE a=2
+  }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 13.0 {
+  CREATE TABLE t1(id INTEGER PRIMARY KEY, a, b);
+  INSERT INTO t1 VALUES(1, '1', 'a');
+  INSERT INTO t1 VALUES(2, '22', 'b');
+  INSERT INTO t1 VALUES(3, '333', 'c');
+  INSERT INTO t1 VALUES(4, '4444', 'dddd');
+  INSERT INTO t1 VALUES(5, '55555', 'e');
+  INSERT INTO t1 VALUES(6, '666666', 'f');
+  INSERT INTO t1 VALUES(7, '7777777', 'gggggggggg');
+} {}
+
+set queryres [list {*}{
+  1b22
+  1b22c333
+  22c333dddd4444 
+  333dddd4444e55555 
+  4444e55555f666666
+  55555f666666gggggggggg7777777 
+  666666gggggggggg7777777
+}]
+do_execsql_test 13.1 {
+  SELECT group_concat(a, b) OVER (
+    ORDER BY id RANGE BETWEEN 1 PRECEDING AND 1 FOLLOWING
+  ) FROM t1
+} $queryres
+
+do_faultsim_test 13 -faults oom* -prep {
+} -body {
+  execsql {
+    SELECT group_concat(a, b) OVER (
+        ORDER BY id RANGE BETWEEN 1 PRECEDING AND 1 FOLLOWING
+    ) FROM t1
+  }
+} -test {
+  faultsim_test_result [list 0 $::queryres]
+}
+
+finish_test
diff --git a/test/windowpushd.test b/test/windowpushd.test
new file mode 100644
index 0000000000000000000000000000000000000000..4bfb2c523d38df535d603c38fe154d3c029eb196
--- /dev/null
+++ b/test/windowpushd.test
@@ -0,0 +1,240 @@
+# 2021 February 23
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the push-down optimization when
+# WHERE constraints are pushed down into a sub-query that uses
+# window functions.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix windowpushd
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(id INTEGER PRIMARY KEY, grp_id);
+  CREATE INDEX i1 ON t1(grp_id);
+  CREATE VIEW lll AS SELECT
+    row_number() OVER (PARTITION BY grp_id), 
+    grp_id, id 
+  FROM t1
+}
+
+do_execsql_test 1.1 {
+  INSERT INTO t1 VALUES
+    (1, 2), (2, 3), (3, 3), (4, 1), (5, 1),
+    (6, 1), (7, 1), (8, 1), (9, 3), (10, 3), 
+    (11, 2), (12, 3), (13, 3), (14, 2), (15, 1),
+    (16, 2), (17, 1), (18, 2), (19, 3), (20, 2)
+}
+
+do_execsql_test 1.2 {
+  SELECT * FROM lll
+} {
+  1 1 4 2 1 5 3 1 6 4 1 7 5 1 8 6 1 15 7 1 17 
+  1 2 1 2 2 11 3 2 14 4 2 16 5 2 18 6 2 20 
+  1 3 2 2 3 3 3 3 9 4 3 10 5 3 12 6 3 13 7 3 19
+}
+
+do_execsql_test 1.3 {
+  SELECT * FROM lll WHERE grp_id=2
+} {
+  1 2 1 2 2 11 3 2 14 4 2 16 5 2 18 6 2 20 
+}
+
+do_eqp_test 1.4 {
+  SELECT * FROM lll WHERE grp_id=2
+} {SEARCH t1 USING COVERING INDEX i1 (grp_id=?)}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 2.0 {
+  CREATE TABLE t1(a, b, c, d);
+  INSERT INTO t1 VALUES('A', 'C', 1,  0.1);
+  INSERT INTO t1 VALUES('A', 'D', 2,  0.2);
+  INSERT INTO t1 VALUES('A', 'E', 3,  0.3);
+  INSERT INTO t1 VALUES('A', 'C', 4,  0.4);
+  INSERT INTO t1 VALUES('B', 'D', 5,  0.5);
+  INSERT INTO t1 VALUES('B', 'E', 6,  0.6);
+  INSERT INTO t1 VALUES('B', 'C', 7,  0.7);
+  INSERT INTO t1 VALUES('B', 'D', 8,  0.8);
+  INSERT INTO t1 VALUES('C', 'E', 9,  0.9);
+  INSERT INTO t1 VALUES('C', 'C', 10, 1.0);
+  INSERT INTO t1 VALUES('C', 'D', 11, 1.1);
+  INSERT INTO t1 VALUES('C', 'E', 12, 1.2);
+
+  CREATE INDEX i1 ON t1(a);
+  CREATE INDEX i2 ON t1(b);
+
+  CREATE VIEW v1 AS SELECT a, c, max(c) OVER (PARTITION BY a) FROM t1;
+
+  CREATE VIEW v2 AS SELECT a, c, 
+      max(c) OVER (PARTITION BY a),
+      row_number() OVER ()
+  FROM t1;
+
+  CREATE VIEW v3 AS SELECT b, d, 
+      max(d) OVER (PARTITION BY b),
+      row_number() OVER (PARTITION BY b)
+  FROM t1;
+
+  CREATE TABLE t2(x, y, z);
+  INSERT INTO t2 VALUES('W', 3, 1);
+  INSERT INTO t2 VALUES('W', 2, 2);
+  INSERT INTO t2 VALUES('X', 1, 4);
+  INSERT INTO t2 VALUES('X', 5, 7);
+  INSERT INTO t2 VALUES('Y', 1, 9);
+  INSERT INTO t2 VALUES('Y', 4, 2);
+  INSERT INTO t2 VALUES('Z', 3, 3);
+  INSERT INTO t2 VALUES('Z', 3, 4);
+}
+
+foreach tn {0 1} {
+  if {$tn} {
+    optimization_control db all on
+  } else {
+    optimization_control db push-down off
+  }
+
+  do_execsql_test 2.$tn.1.1 {
+    SELECT * FROM v1;
+  } {
+    A 1 4   A 2 4   A 3 4   A 4 4
+    B 5 8   B 6 8   B 7 8   B 8 8
+    C 9 12  C 10 12 C 11 12 C 12 12
+  }
+
+  do_execsql_test 2.$tn.1.2 {
+    SELECT * FROM v1 WHERE a IN ('A', 'B');
+  } {
+    A 1 4   A 2 4   A 3 4   A 4 4
+    B 5 8   B 6 8   B 7 8   B 8 8
+  }
+
+  do_execsql_test 2.$tn.1.3 {
+    SELECT * FROM v1 WHERE a IS 'C'
+  } {
+    C 9 12  C 10 12 C 11 12 C 12 12
+  }
+
+  if {$tn==1} {
+    do_eqp_test 2.$tn.1.4 {
+      SELECT * FROM v1 WHERE a IN ('A', 'B');
+    } {USING INDEX i1 (a=?)}
+
+    do_eqp_test 2.$tn.1.5 {
+      SELECT * FROM v1 WHERE a = 'c' COLLATE nocase
+    } {USING INDEX i1}
+  }
+
+  do_execsql_test 2.$tn.2.1 {
+    SELECT * FROM v2;
+  } {
+    A 1 4 1    A 2 4 2     A 3 4 3      A 4 4 4
+    B 5 8 5    B 6 8 6     B 7 8 7      B 8 8 8
+    C 9 12 9   C 10 12 10  C 11 12 11   C 12 12 12
+  }
+
+  do_execsql_test 2.$tn.2.2 {
+    SELECT * FROM v2 WHERE a = 'C';
+  } {
+    C 9 12 9   C 10 12 10  C 11 12 11   C 12 12 12
+  }
+
+  do_execsql_test 2.$tn.3.1 { SELECT * FROM v3; } { 
+    C 0.1 1.0 1 C 0.4 1.0 2 C 0.7 1.0 3 C 1.0 1.0 4 
+    D 0.2 1.1 1 D 0.5 1.1 2 D 0.8 1.1 3 D 1.1 1.1 4 
+    E 0.3 1.2 1 E 0.6 1.2 2 E 0.9 1.2 3 E 1.2 1.2 4
+  }
+
+  do_execsql_test 2.$tn.3.2 { SELECT * FROM v3 WHERE b<'E' } { 
+    C 0.1 1.0 1 C 0.4 1.0 2 C 0.7 1.0 3 C 1.0 1.0 4 
+    D 0.2 1.1 1 D 0.5 1.1 2 D 0.8 1.1 3 D 1.1 1.1 4 
+  }
+
+  if {$tn==1} {
+    do_eqp_test 2.$tn.3.3 {
+      SELECT * FROM v3 WHERE b='E'
+    } {SEARCH t1 USING INDEX i2 (b=?)}
+    do_eqp_test 2.$tn.3.4 {
+      SELECT * FROM v3 WHERE b>'C'
+    } {SEARCH t1 USING INDEX i2 (b>?)}
+  }
+
+  do_execsql_test 2.$tn.3.5 { SELECT * FROM v3 WHERE d<0.55; } { 
+    C 0.1 1.0 1 C 0.4 1.0 2
+    D 0.2 1.1 1 D 0.5 1.1 2
+    E 0.3 1.2 1
+  }
+  if {$tn==1} {
+    do_eqp_test 2.$tn.3.6 {
+      SELECT * FROM v3 WHERE d<0.55
+    } {SCAN t1 USING INDEX i2}
+  }
+
+  do_execsql_test 2.$tn.4.1 {
+    SELECT * FROM (
+      SELECT x, sum(y) AS s, max(z) AS m 
+      FROM t2 GROUP BY x
+    )
+  } {
+    W 5 2
+    X 6 7
+    Y 5 9
+    Z 6 4
+  }
+
+  do_execsql_test 2.$tn.4.1 {
+    SELECT * FROM (
+      SELECT x, sum(y) AS s, max(z) AS m,
+        max( max(z) ) OVER (PARTITION BY sum(y) 
+            ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING
+        )
+      FROM t2 GROUP BY x
+    )
+  } {
+    W 5 2   9
+    Y 5 9   9
+    X 6 7   7
+    Z 6 4   7
+  }
+
+  do_execsql_test 2.$tn.4.2 {
+    SELECT * FROM (
+      SELECT x, sum(y) AS s, max(z) AS m,
+        max( max(z) ) OVER (PARTITION BY sum(y) 
+            ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING
+        )
+      FROM t2 GROUP BY x
+    ) WHERE s=6
+  } {
+    X 6 7   7
+    Z 6 4   7
+  }
+
+  do_execsql_test 2.$tn.4.3 {
+    SELECT * FROM (
+      SELECT x, sum(y) AS s, max(z) AS m,
+        max( max(z) ) OVER (PARTITION BY sum(y) 
+            ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING
+        )
+      FROM t2 GROUP BY x
+    ) WHERE s<6
+  } {
+    W 5 2   9
+    Y 5 9   9
+  }
+
+}
+
+
+
+
+finish_test
diff --git a/test/with1.test b/test/with1.test
new file mode 100644
index 0000000000000000000000000000000000000000..7400a7adf3807fa71c150c24435a0b6fbfc3cfc2
--- /dev/null
+++ b/test/with1.test
@@ -0,0 +1,1240 @@
+# 2014 January 11
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the WITH clause.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix with1
+
+ifcapable {!cte} {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(x INTEGER, y INTEGER);
+  WITH x(a) AS ( SELECT * FROM t1) SELECT 10
+} {10}
+
+do_execsql_test 1.1 {
+  SELECT * FROM ( WITH x AS ( SELECT * FROM t1) SELECT 10 );
+} {10}
+
+do_execsql_test 1.2 {
+  WITH x(a) AS ( SELECT * FROM t1) INSERT INTO t1 VALUES(1,2);
+} {}
+
+do_execsql_test 1.3 {
+  WITH x(a) AS ( SELECT * FROM t1) DELETE FROM t1;
+} {}
+
+do_execsql_test 1.4 {
+  WITH x(a) AS ( SELECT * FROM t1) UPDATE t1 SET x = y;
+} {}
+ 
+#--------------------------------------------------------------------------
+
+do_execsql_test 2.1 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(x);
+  INSERT INTO t1 VALUES(1);
+  INSERT INTO t1 VALUES(2);
+  WITH tmp AS ( SELECT * FROM t1 ) SELECT x FROM tmp;
+} {1 2}
+
+do_execsql_test 2.2 {
+  WITH tmp(a) AS ( SELECT * FROM t1 ) SELECT a FROM tmp;
+} {1 2}
+
+do_execsql_test 2.3 {
+  SELECT * FROM (
+    WITH tmp(a) AS ( SELECT * FROM t1 ) SELECT a FROM tmp
+  );
+} {1 2}
+
+do_execsql_test 2.4 {
+  WITH tmp1(a) AS ( SELECT * FROM t1 ),
+       tmp2(x) AS ( SELECT * FROM tmp1)
+  SELECT * FROM tmp2;
+} {1 2}
+
+do_execsql_test 2.5 {
+  WITH tmp2(x) AS ( SELECT * FROM tmp1),
+       tmp1(a) AS ( SELECT * FROM t1 )
+  SELECT * FROM tmp2;
+} {1 2}
+
+#-------------------------------------------------------------------------
+do_catchsql_test 3.1 {
+  WITH tmp2(x) AS ( SELECT * FROM tmp1 ),
+       tmp1(a) AS ( SELECT * FROM tmp2 )
+  SELECT * FROM tmp1;
+} {1 {circular reference: tmp1}}
+
+do_catchsql_test 3.2 {
+  CREATE TABLE t2(x INTEGER);
+  WITH tmp(a) AS (SELECT * FROM t1),
+       tmp(a) AS (SELECT * FROM t1)
+  SELECT * FROM tmp;
+} {1 {duplicate WITH table name: tmp}}
+
+do_execsql_test 3.3 {
+  CREATE TABLE t3(x);
+  CREATE TABLE t4(x);
+
+  INSERT INTO t3 VALUES('T3');
+  INSERT INTO t4 VALUES('T4');
+
+  WITH t3(a) AS (SELECT * FROM t4)
+  SELECT * FROM t3;
+} {T4}
+
+do_execsql_test 3.4 {
+  WITH tmp  AS ( SELECT * FROM t3 ),
+       tmp2 AS ( WITH tmp AS ( SELECT * FROM t4 ) SELECT * FROM tmp )
+  SELECT * FROM tmp2;
+} {T4}
+
+do_execsql_test 3.5 {
+  WITH tmp  AS ( SELECT * FROM t3 ),
+       tmp2 AS ( WITH xxxx AS ( SELECT * FROM t4 ) SELECT * FROM tmp )
+  SELECT * FROM tmp2;
+} {T3}
+
+do_catchsql_test 3.6 {
+  WITH tmp AS ( SELECT * FROM t3 ),
+  SELECT * FROM tmp;
+} {1 {near "SELECT": syntax error}}
+
+#-------------------------------------------------------------------------
+do_execsql_test 4.1 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(x);
+  INSERT INTO t1 VALUES(1);
+  INSERT INTO t1 VALUES(2);
+  INSERT INTO t1 VALUES(3);
+  INSERT INTO t1 VALUES(4);
+
+  WITH dset AS ( SELECT 2 UNION ALL SELECT 4 )
+  DELETE FROM t1 WHERE x IN dset;
+  SELECT * FROM t1;
+} {1 3}
+
+do_execsql_test 4.2 {
+  WITH iset AS ( SELECT 2 UNION ALL SELECT 4 )
+  INSERT INTO t1 SELECT * FROM iset;
+  SELECT * FROM t1;
+} {1 3 2 4}
+
+do_execsql_test 4.3 {
+  WITH uset(a, b) AS ( SELECT 2, 8 UNION ALL SELECT 4, 9 )
+  UPDATE t1 SET x = COALESCE( (SELECT b FROM uset WHERE a=x), x );
+  SELECT * FROM t1;
+} {1 3 8 9}
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test 5.1 {
+  WITH i(x) AS ( VALUES(1) UNION ALL SELECT x+1 FROM i)
+  SELECT x FROM i LIMIT 10;
+} {1 2 3 4 5 6 7 8 9 10}
+
+do_catchsql_test 5.2 {
+  WITH i(x) AS ( VALUES(1) UNION ALL SELECT x+1 FROM i ORDER BY 1)
+  SELECT x FROM i LIMIT 10;
+} {0 {1 2 3 4 5 6 7 8 9 10}}
+
+do_execsql_test 5.2.1 {
+  CREATE TABLE edge(xfrom, xto, seq, PRIMARY KEY(xfrom, xto)) WITHOUT ROWID;
+  INSERT INTO edge VALUES(0, 1, 10);
+  INSERT INTO edge VALUES(1, 2, 20);
+  INSERT INTO edge VALUES(0, 3, 30);
+  INSERT INTO edge VALUES(2, 4, 40);
+  INSERT INTO edge VALUES(3, 4, 40);
+  INSERT INTO edge VALUES(2, 5, 50);
+  INSERT INTO edge VALUES(3, 6, 60);
+  INSERT INTO edge VALUES(5, 7, 70);
+  INSERT INTO edge VALUES(3, 7, 70);
+  INSERT INTO edge VALUES(4, 8, 80);
+  INSERT INTO edge VALUES(7, 8, 80);
+  INSERT INTO edge VALUES(8, 9, 90);
+  
+  WITH RECURSIVE
+    ancest(id, mtime) AS
+      (VALUES(0, 0)
+       UNION
+       SELECT edge.xto, edge.seq FROM edge, ancest
+        WHERE edge.xfrom=ancest.id
+        ORDER BY 2
+      )
+  SELECT * FROM ancest;
+} {0 0 1 10 2 20 3 30 4 40 5 50 6 60 7 70 8 80 9 90}
+do_execsql_test 5.2.2 {
+  WITH RECURSIVE
+    ancest(id, mtime) AS
+      (VALUES(0, 0)
+       UNION ALL
+       SELECT edge.xto, edge.seq FROM edge, ancest
+        WHERE edge.xfrom=ancest.id
+        ORDER BY 2
+      )
+  SELECT * FROM ancest;
+} {0 0 1 10 2 20 3 30 4 40 4 40 5 50 6 60 7 70 7 70 8 80 8 80 8 80 8 80 9 90 9 90 9 90 9 90}
+do_execsql_test 5.2.3 {
+  WITH RECURSIVE
+    ancest(id, mtime) AS
+      (VALUES(0, 0)
+       UNION ALL
+       SELECT edge.xto, edge.seq FROM edge, ancest
+        WHERE edge.xfrom=ancest.id
+        ORDER BY 2 LIMIT 4 OFFSET 2
+      )
+  SELECT * FROM ancest;
+} {2 20 3 30 4 40 4 40}
+
+do_catchsql_test 5.3 {
+  WITH i(x) AS ( VALUES(1) UNION ALL SELECT x+1 FROM i LIMIT 5)
+  SELECT x FROM i;
+} {0 {1 2 3 4 5}}
+
+do_execsql_test 5.4 {
+  WITH i(x) AS ( VALUES(1) UNION ALL SELECT (x+1)%10 FROM i)
+  SELECT x FROM i LIMIT 20;
+} {1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0}
+
+do_execsql_test 5.5 {
+  WITH i(x) AS ( VALUES(1) UNION SELECT (x+1)%10 FROM i)
+  SELECT x FROM i LIMIT 20;
+} {1 2 3 4 5 6 7 8 9 0}
+
+do_catchsql_test 5.6.1 {
+  WITH i(x, y) AS ( VALUES(1) )
+  SELECT * FROM i;
+} {1 {table i has 1 values for 2 columns}}
+
+do_catchsql_test 5.6.2 {
+  WITH i(x) AS ( VALUES(1,2) )
+  SELECT * FROM i;
+} {1 {table i has 2 values for 1 columns}}
+
+do_catchsql_test 5.6.3 {
+  CREATE TABLE t5(a, b);
+  WITH i(x) AS ( SELECT * FROM t5 )
+  SELECT * FROM i;
+} {1 {table i has 2 values for 1 columns}}
+
+do_catchsql_test 5.6.4 {
+  WITH i(x) AS ( SELECT 1, 2 UNION ALL SELECT 1 )
+  SELECT * FROM i;
+} {1 {table i has 2 values for 1 columns}}
+
+do_catchsql_test 5.6.5 {
+  WITH i(x) AS ( SELECT 1 UNION ALL SELECT 1, 2 )
+  SELECT * FROM i;
+} {1 {SELECTs to the left and right of UNION ALL do not have the same number of result columns}}
+
+do_catchsql_test 5.6.6 {
+  WITH i(x) AS ( SELECT 1 UNION ALL SELECT x+1, x*2 FROM i )
+  SELECT * FROM i;
+} {1 {SELECTs to the left and right of UNION ALL do not have the same number of result columns}}
+
+do_catchsql_test 5.6.7 {
+  WITH i(x) AS ( SELECT 1, 2 UNION SELECT x+1 FROM i )
+  SELECT * FROM i;
+} {1 {table i has 2 values for 1 columns}}
+
+#-------------------------------------------------------------------------
+#
+do_execsql_test 6.1 {
+  CREATE TABLE f(
+      id INTEGER PRIMARY KEY, parentid REFERENCES f, name TEXT
+  );
+
+  INSERT INTO f VALUES(0, NULL, '');
+  INSERT INTO f VALUES(1, 0, 'bin');
+    INSERT INTO f VALUES(2, 1, 'true');
+    INSERT INTO f VALUES(3, 1, 'false');
+    INSERT INTO f VALUES(4, 1, 'ls');
+    INSERT INTO f VALUES(5, 1, 'grep');
+  INSERT INTO f VALUES(6, 0, 'etc');
+    INSERT INTO f VALUES(7, 6, 'rc.d');
+      INSERT INTO f VALUES(8, 7, 'rc.apache');
+      INSERT INTO f VALUES(9, 7, 'rc.samba');
+  INSERT INTO f VALUES(10, 0, 'home');
+    INSERT INTO f VALUES(11, 10, 'dan');
+      INSERT INTO f VALUES(12, 11, 'public_html');
+        INSERT INTO f VALUES(13, 12, 'index.html');
+          INSERT INTO f VALUES(14, 13, 'logo.gif');
+}
+
+do_execsql_test 6.2 {
+  WITH flat(fid, fpath) AS (
+    SELECT id, '' FROM f WHERE parentid IS NULL
+    UNION ALL
+    SELECT id, fpath || '/' || name FROM f, flat WHERE parentid=fid
+  )
+  SELECT fpath FROM flat WHERE fpath!='' ORDER BY 1;
+} {
+  /bin 
+  /bin/false /bin/grep /bin/ls /bin/true 
+  /etc 
+  /etc/rc.d 
+  /etc/rc.d/rc.apache /etc/rc.d/rc.samba 
+  /home 
+  /home/dan 
+  /home/dan/public_html 
+  /home/dan/public_html/index.html 
+  /home/dan/public_html/index.html/logo.gif
+}
+
+do_execsql_test 6.3 {
+  WITH flat(fid, fpath) AS (
+    SELECT id, '' FROM f WHERE parentid IS NULL
+    UNION ALL
+    SELECT id, fpath || '/' || name FROM f, flat WHERE parentid=fid
+  )
+  SELECT count(*) FROM flat;
+} {15}
+
+do_execsql_test 6.4 {
+  WITH x(i) AS (
+    SELECT 1
+    UNION ALL
+    SELECT i+1 FROM x WHERE i<10
+  )
+  SELECT count(*) FROM x
+} {10}
+
+
+#-------------------------------------------------------------------------
+
+do_execsql_test 7.1 {
+  CREATE TABLE tree(i, p);
+  INSERT INTO tree VALUES(1, NULL);
+  INSERT INTO tree VALUES(2, 1);
+  INSERT INTO tree VALUES(3, 1);
+  INSERT INTO tree VALUES(4, 2);
+  INSERT INTO tree VALUES(5, 4);
+}
+
+do_execsql_test 7.2 {
+  WITH t(id, path) AS (
+    SELECT i, '' FROM tree WHERE p IS NULL
+    UNION ALL
+    SELECT i, path || '/' || i FROM tree, t WHERE p = id
+  ) 
+  SELECT path FROM t;
+} {{} /2 /3 /2/4 /2/4/5}
+
+do_execsql_test 7.3 {
+  WITH t(id) AS (
+    VALUES(2)
+    UNION ALL
+    SELECT i FROM tree, t WHERE p = id
+  ) 
+  SELECT id FROM t;
+} {2 4 5}
+
+do_catchsql_test 7.4 {
+  WITH t(id) AS (
+    VALUES(2)
+    UNION ALL
+    SELECT i FROM tree WHERE p IN (SELECT id FROM t)
+  ) 
+  SELECT id FROM t;
+} {1 {circular reference: t}}
+
+do_catchsql_test 7.5 {
+  WITH t(id) AS (
+    VALUES(2)
+    UNION ALL
+    SELECT i FROM tree, t WHERE p = id AND p IN (SELECT id FROM t)
+  ) 
+  SELECT id FROM t;
+} {1 {multiple recursive references: t}}
+
+do_catchsql_test 7.6 {
+  WITH t(id) AS (
+    SELECT i FROM tree WHERE 2 IN (SELECT id FROM t)
+    UNION ALL
+    SELECT i FROM tree, t WHERE p = id
+  ) 
+  SELECT id FROM t;
+} {1 {circular reference: t}}
+
+# Compute the mandelbrot set using a recursive query
+#
+do_execsql_test 8.1-mandelbrot {
+  WITH RECURSIVE
+    xaxis(x) AS (VALUES(-2.0) UNION ALL SELECT x+0.05 FROM xaxis WHERE x<1.2),
+    yaxis(y) AS (VALUES(-1.0) UNION ALL SELECT y+0.1 FROM yaxis WHERE y<1.0),
+    m(iter, cx, cy, x, y) AS (
+      SELECT 0, x, y, 0.0, 0.0 FROM xaxis, yaxis
+      UNION ALL
+      SELECT iter+1, cx, cy, x*x-y*y + cx, 2.0*x*y + cy FROM m 
+       WHERE (x*x + y*y) < 4.0 AND iter<28
+    ),
+    m2(iter, cx, cy) AS (
+      SELECT max(iter), cx, cy FROM m GROUP BY cx, cy
+    ),
+    a(t) AS (
+      SELECT group_concat( substr(' .+*#', 1+min(iter/7,4), 1), '') 
+      FROM m2 GROUP BY cy
+    )
+  SELECT group_concat(rtrim(t),x'0a') FROM a;
+} {{                                    ....#
+                                   ..#*..
+                                 ..+####+.
+                            .......+####....   +
+                           ..##+*##########+.++++
+                          .+.##################+.
+              .............+###################+.+
+              ..++..#.....*#####################+.
+             ...+#######++#######################.
+          ....+*################################.
+ #############################################...
+          ....+*################################.
+             ...+#######++#######################.
+              ..++..#.....*#####################+.
+              .............+###################+.+
+                          .+.##################+.
+                           ..##+*##########+.++++
+                            .......+####....   +
+                                 ..+####+.
+                                   ..#*..
+                                    ....#
+                                    +.}}
+
+# Solve a sudoku puzzle using a recursive query
+#
+do_execsql_test 8.2-soduko {
+  WITH RECURSIVE
+    input(sud) AS (
+      VALUES('53..7....6..195....98....6.8...6...34..8.3..17...2...6.6....28....419..5....8..79')
+    ),
+  
+    /* A table filled with digits 1..9, inclusive. */
+    digits(z, lp) AS (
+      VALUES('1', 1)
+      UNION ALL SELECT
+      CAST(lp+1 AS TEXT), lp+1 FROM digits WHERE lp<9
+    ),
+  
+    /* The tricky bit. */
+    x(s, ind) AS (
+      SELECT sud, instr(sud, '.') FROM input
+      UNION ALL
+      SELECT
+        substr(s, 1, ind-1) || z || substr(s, ind+1),
+        instr( substr(s, 1, ind-1) || z || substr(s, ind+1), '.' )
+       FROM x, digits AS z
+      WHERE ind>0
+        AND NOT EXISTS (
+              SELECT 1
+                FROM digits AS lp
+               WHERE z.z = substr(s, ((ind-1)/9)*9 + lp, 1)
+                  OR z.z = substr(s, ((ind-1)%9) + (lp-1)*9 + 1, 1)
+                  OR z.z = substr(s, (((ind-1)/3) % 3) * 3
+                          + ((ind-1)/27) * 27 + lp
+                          + ((lp-1) / 3) * 6, 1)
+           )
+    )
+  SELECT s FROM x WHERE ind=0;
+} {534678912672195348198342567859761423426853791713924856961537284287419635345286179}
+
+#--------------------------------------------------------------------------
+# Some tests that use LIMIT and OFFSET in the definition of recursive CTEs.
+# 
+set I [list 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20]
+proc limit_test {tn iLimit iOffset} {
+  if {$iOffset < 0} { set iOffset 0 }
+  if {$iLimit < 0 } {
+    set result [lrange $::I $iOffset end]
+  } else {
+    set result [lrange $::I $iOffset [expr $iLimit+$iOffset-1]]
+  }
+  uplevel [list do_execsql_test $tn [subst -nocommands {
+    WITH ii(a) AS (
+      VALUES(1)
+      UNION ALL 
+      SELECT a+1 FROM ii WHERE a<20 
+      LIMIT $iLimit OFFSET $iOffset
+    )
+    SELECT * FROM ii
+  }] $result]
+}
+
+limit_test 9.1    20  0
+limit_test 9.2     0  0
+limit_test 9.3    19  1
+limit_test 9.4    20 -1
+limit_test 9.5     5  5
+limit_test 9.6     0 -1
+limit_test 9.7    40 -1
+limit_test 9.8    -1 -1
+limit_test 9.9    -1 -1
+
+#--------------------------------------------------------------------------
+# Test the ORDER BY clause on recursive tables.
+#
+
+do_execsql_test 10.1 {
+  DROP TABLE IF EXISTS tree;
+  CREATE TABLE tree(id INTEGER PRIMARY KEY, parentid, payload);
+}
+
+proc insert_into_tree {L} {
+  db eval { DELETE FROM tree }
+  foreach key $L {
+    unset -nocomplain parentid
+    foreach seg [split $key /] {
+      if {$seg==""} continue
+      set id [db one {
+        SELECT id FROM tree WHERE parentid IS $parentid AND payload=$seg
+      }]
+      if {$id==""} {
+        db eval { INSERT INTO tree VALUES(NULL, $parentid, $seg) }
+        set parentid [db last_insert_rowid]
+      } else {
+        set parentid $id
+      }
+    }
+  }
+}
+
+insert_into_tree {
+  /a/a/a
+  /a/b/c
+  /a/b/c/d
+  /a/b/d
+}
+do_execsql_test 10.2 {
+  WITH flat(fid, p) AS (
+    SELECT id, '/' || payload FROM tree WHERE parentid IS NULL
+    UNION ALL
+    SELECT id, p || '/' || payload FROM flat, tree WHERE parentid=fid
+  )
+  SELECT p FROM flat ORDER BY p;
+} {
+  /a /a/a /a/a/a 
+     /a/b /a/b/c /a/b/c/d
+          /a/b/d
+}
+
+# Scan the tree-structure currently stored in table tree. Return a list
+# of nodes visited.
+#
+proc scan_tree {bDepthFirst bReverse} {
+
+  set order "ORDER BY "
+  if {$bDepthFirst==0} { append order "2 ASC," }
+  if {$bReverse==0} { 
+    append order " 3 ASC" 
+  } else {
+    append order " 3 DESC" 
+  }
+
+  db eval "
+    WITH flat(fid, depth, p) AS (
+        SELECT id, 1, '/' || payload FROM tree WHERE parentid IS NULL
+        UNION ALL
+        SELECT id, depth+1, p||'/'||payload FROM flat, tree WHERE parentid=fid
+        $order
+    )
+    SELECT p FROM flat;
+  "
+}
+
+insert_into_tree {
+  /a/b
+  /a/b/c
+  /a/d
+  /a/d/e
+  /a/d/f
+  /g/h
+}
+
+# Breadth first, siblings in ascending order.
+#
+do_test 10.3 {
+  scan_tree 0 0
+} [list {*}{
+  /a /g
+  /a/b /a/d /g/h
+  /a/b/c /a/d/e /a/d/f
+}]
+
+# Depth first, siblings in ascending order.
+#
+do_test 10.4 {
+  scan_tree 1 0
+} [list {*}{
+  /a /a/b /a/b/c
+     /a/d /a/d/e 
+          /a/d/f
+  /g /g/h
+}]
+
+# Breadth first, siblings in descending order.
+#
+do_test 10.5 {
+  scan_tree 0 1
+} [list {*}{
+  /g /a 
+  /g/h /a/d /a/b 
+  /a/d/f /a/d/e /a/b/c 
+}]
+
+# Depth first, siblings in ascending order.
+#
+do_test 10.6 {
+  scan_tree 1 1
+} [list {*}{
+  /g /g/h
+  /a /a/d /a/d/f 
+          /a/d/e 
+     /a/b /a/b/c
+}]
+
+
+# Test name resolution in ORDER BY clauses.
+#
+do_catchsql_test 10.7.1 {
+  WITH t(a) AS (
+    SELECT 1 AS b UNION ALL SELECT a+1 AS c FROM t WHERE a<5 ORDER BY a
+  ) 
+  SELECT * FROM t
+} {1 {1st ORDER BY term does not match any column in the result set}}
+do_execsql_test 10.7.2 {
+  WITH t(a) AS (
+    SELECT 1 AS b UNION ALL SELECT a+1 AS c FROM t WHERE a<5 ORDER BY b
+  ) 
+  SELECT * FROM t
+} {1 2 3 4 5}
+do_execsql_test 10.7.3 {
+  WITH t(a) AS (
+    SELECT 1 AS b UNION ALL SELECT a+1 AS c FROM t WHERE a<5 ORDER BY c
+  ) 
+  SELECT * FROM t
+} {1 2 3 4 5}
+
+# Test COLLATE clauses attached to ORDER BY.
+#
+insert_into_tree {
+  /a/b
+  /a/C
+  /a/d
+  /B/e
+  /B/F
+  /B/g
+  /c/h
+  /c/I
+  /c/j
+}
+
+do_execsql_test 10.8.1 {
+  WITH flat(fid, depth, p) AS (
+    SELECT id, 1, '/' || payload FROM tree WHERE parentid IS NULL
+    UNION ALL
+    SELECT id, depth+1, p||'/'||payload FROM flat, tree WHERE parentid=fid
+    ORDER BY 2, 3 COLLATE nocase
+  )
+  SELECT p FROM flat;
+} {
+  /a /B /c
+  /a/b /a/C /a/d /B/e /B/F /B/g /c/h /c/I /c/j
+}
+do_execsql_test 10.8.2 {
+  WITH flat(fid, depth, p) AS (
+      SELECT id, 1, ('/' || payload) COLLATE nocase 
+      FROM tree WHERE parentid IS NULL
+    UNION ALL
+      SELECT id, depth+1, (p||'/'||payload)
+      FROM flat, tree WHERE parentid=fid
+    ORDER BY 2, 3
+  )
+  SELECT p FROM flat;
+} {
+  /a /B /c
+  /a/b /a/C /a/d /B/e /B/F /B/g /c/h /c/I /c/j
+}
+
+do_execsql_test 10.8.3 {
+  WITH flat(fid, depth, p) AS (
+      SELECT id, 1, ('/' || payload)
+      FROM tree WHERE parentid IS NULL
+    UNION ALL
+      SELECT id, depth+1, (p||'/'||payload) COLLATE nocase 
+      FROM flat, tree WHERE parentid=fid
+    ORDER BY 2, 3
+  )
+  SELECT p FROM flat;
+} {
+  /a /B /c
+  /a/b /a/C /a/d /B/e /B/F /B/g /c/h /c/I /c/j
+}
+
+do_execsql_test 10.8.4.1 {
+  CREATE TABLE tst(a,b);
+  INSERT INTO tst VALUES('a', 'A');
+  INSERT INTO tst VALUES('b', 'B');
+  INSERT INTO tst VALUES('c', 'C');
+  SELECT a COLLATE nocase FROM tst UNION ALL SELECT b FROM tst ORDER BY 1;
+} {a A b B c C}
+do_execsql_test 10.8.4.2 {
+  SELECT a FROM tst UNION ALL SELECT b COLLATE nocase FROM tst ORDER BY 1;
+} {A B C a b c}
+do_execsql_test 10.8.4.3 {
+  SELECT a||'' FROM tst UNION ALL SELECT b COLLATE nocase FROM tst ORDER BY 1;
+} {a A b B c C}
+
+# Test cases to illustrate on the ORDER BY clause on a recursive query can be
+# used to control depth-first versus breath-first search in a tree.
+#
+do_execsql_test 11.1 {
+  CREATE TABLE org(
+    name TEXT PRIMARY KEY,
+    boss TEXT REFERENCES org
+  ) WITHOUT ROWID;
+  INSERT INTO org VALUES('Alice',NULL);
+  INSERT INTO org VALUES('Bob','Alice');
+  INSERT INTO org VALUES('Cindy','Alice');
+  INSERT INTO org VALUES('Dave','Bob');
+  INSERT INTO org VALUES('Emma','Bob');
+  INSERT INTO org VALUES('Fred','Cindy');
+  INSERT INTO org VALUES('Gail','Cindy');
+  INSERT INTO org VALUES('Harry','Dave');
+  INSERT INTO org VALUES('Ingrid','Dave');
+  INSERT INTO org VALUES('Jim','Emma');
+  INSERT INTO org VALUES('Kate','Emma');
+  INSERT INTO org VALUES('Lanny','Fred');
+  INSERT INTO org VALUES('Mary','Fred');
+  INSERT INTO org VALUES('Noland','Gail');
+  INSERT INTO org VALUES('Olivia','Gail');
+  -- The above are all under Alice.  Add a few more records for people
+  -- not in Alice's group, just to prove that they won't be selected.
+  INSERT INTO org VALUES('Xaviar',NULL);
+  INSERT INTO org VALUES('Xia','Xaviar');
+  INSERT INTO org VALUES('Xerxes','Xaviar');
+  INSERT INTO org VALUES('Xena','Xia');
+  -- Find all members of Alice's group, breath-first order  
+  WITH RECURSIVE
+    under_alice(name,level) AS (
+       VALUES('Alice','0')
+       UNION ALL
+       SELECT org.name, under_alice.level+1
+         FROM org, under_alice
+        WHERE org.boss=under_alice.name
+        ORDER BY 2
+    )
+  SELECT group_concat(substr('...............',1,level*3) || name,x'0a')
+    FROM under_alice;
+} {{Alice
+...Bob
+...Cindy
+......Dave
+......Emma
+......Fred
+......Gail
+.........Harry
+.........Ingrid
+.........Jim
+.........Kate
+.........Lanny
+.........Mary
+.........Noland
+.........Olivia}}
+
+# The previous query used "ORDER BY level" to yield a breath-first search.
+# Change that to "ORDER BY level DESC" for a depth-first search.
+#
+do_execsql_test 11.2 {
+  WITH RECURSIVE
+    under_alice(name,level) AS (
+       VALUES('Alice','0')
+       UNION ALL
+       SELECT org.name, under_alice.level+1
+         FROM org, under_alice
+        WHERE org.boss=under_alice.name
+        ORDER BY 2 DESC
+    )
+  SELECT group_concat(substr('...............',1,level*3) || name,x'0a')
+    FROM under_alice;
+} {{Alice
+...Bob
+......Dave
+.........Harry
+.........Ingrid
+......Emma
+.........Jim
+.........Kate
+...Cindy
+......Fred
+.........Lanny
+.........Mary
+......Gail
+.........Noland
+.........Olivia}}
+
+# Without an ORDER BY clause, the recursive query should use a FIFO,
+# resulting in a breath-first search.
+#
+do_execsql_test 11.3 {
+  WITH RECURSIVE
+    under_alice(name,level) AS (
+       VALUES('Alice','0')
+       UNION ALL
+       SELECT org.name, under_alice.level+1
+         FROM org, under_alice
+        WHERE org.boss=under_alice.name
+    )
+  SELECT group_concat(substr('...............',1,level*3) || name,x'0a')
+    FROM under_alice;
+} {{Alice
+...Bob
+...Cindy
+......Dave
+......Emma
+......Fred
+......Gail
+.........Harry
+.........Ingrid
+.........Jim
+.........Kate
+.........Lanny
+.........Mary
+.........Noland
+.........Olivia}}
+
+#--------------------------------------------------------------------------
+# Ticket [31a19d11b97088296ac104aaff113a9790394927] (2014-02-09)
+# Name resolution issue with compound SELECTs and Common Table Expressions 
+#
+do_execsql_test 12.1 {
+WITH RECURSIVE
+  t1(x) AS (VALUES(2) UNION ALL SELECT x+2 FROM t1 WHERE x<20),
+  t2(y) AS (VALUES(3) UNION ALL SELECT y+3 FROM t2 WHERE y<20)
+SELECT x FROM t1 EXCEPT SELECT y FROM t2 ORDER BY 1;
+} {2 4 8 10 14 16 20}
+
+# 2015-03-21
+# Column wildcards on the LHS of a recursive table expression
+#
+do_catchsql_test 13.1 {
+  WITH RECURSIVE c(i) AS (SELECT * UNION ALL SELECT i+1 FROM c WHERE i<10)
+  SELECT i FROM c;
+} {1 {no tables specified}}
+do_catchsql_test 13.2 {
+  WITH RECURSIVE c(i) AS (SELECT 5,* UNION ALL SELECT i+1 FROM c WHERE i<10)
+  SELECT i FROM c;
+} {1 {no tables specified}}
+do_catchsql_test 13.3 {
+  WITH RECURSIVE c(i,j) AS (SELECT 5,* UNION ALL SELECT i+1,11 FROM c WHERE i<10)
+  SELECT i FROM c;
+} {1 {table c has 1 values for 2 columns}}
+
+# 2015-04-12
+#
+do_execsql_test 14.1 {
+  WITH x AS (SELECT * FROM t) SELECT 0 EXCEPT SELECT 0 ORDER BY 1 COLLATE binary;
+} {}
+
+# 2015-05-27:  Do not allow rowid usage within a CTE
+#
+do_catchsql_test 15.1 {
+  WITH RECURSIVE
+    d(x) AS (VALUES(1) UNION ALL SELECT rowid+1 FROM d WHERE rowid<10)
+  SELECT x FROM d;
+} {1 {no such column: rowid}}
+
+# 2015-07-05:  Do not allow aggregate recursive queries
+#
+do_catchsql_test 16.1 {
+  WITH RECURSIVE
+    i(x) AS (VALUES(1) UNION SELECT count(*) FROM i)
+  SELECT * FROM i;
+} {1 {recursive aggregate queries not supported}}
+
+# Or window-function recursive queries. Ticket e8275b41.
+#
+ifcapable windowfunc {
+  do_catchsql_test 16.2 {
+    WITH RECURSIVE
+      i(x) AS (VALUES(1) UNION SELECT count(*) OVER () FROM i)
+      SELECT * FROM i;
+  } {1 {cannot use window functions in recursive queries}}
+  do_catchsql_test 16.3 {
+    WITH RECURSIVE
+      t(id, parent) AS (VALUES(1,2)),
+      q(id, parent, rn) AS (
+          VALUES(1,2,3)
+          UNION ALL
+          SELECT t.*, ROW_NUMBER() OVER (ORDER BY t.id) AS rn
+          FROM q JOIN t ON t.parent = q.id
+          )
+        SELECT * FROM q;
+  } {1 {cannot use window functions in recursive queries}}
+}
+
+#-------------------------------------------------------------------------
+do_execsql_test 17.1 {
+  WITH x(a) AS (
+    WITH y(b) AS (SELECT 10)
+    SELECT 9 UNION ALL SELECT * FROM y
+  )
+  SELECT * FROM x
+} {9 10}
+
+do_execsql_test 17.2 {
+  WITH x AS (
+    WITH y(b) AS (SELECT 10)
+    SELECT * FROM y UNION ALL SELECT * FROM y
+  )
+  SELECT * FROM x
+} {10 10}
+
+do_test 17.2 {
+  db eval {
+    WITH x AS (
+        WITH y(b) AS (SELECT 10)
+        SELECT * FROM y UNION ALL SELECT * FROM y
+    )
+    SELECT * FROM x
+  } A {
+    # no op
+  }
+  set A(*)
+} {b}
+
+do_catchsql_test 17.3 {
+  WITH i AS (
+    WITH j AS (SELECT 5)
+    SELECT 5 FROM i UNION SELECT 8 FROM i
+  )
+  SELECT * FROM i;
+} {1 {circular reference: i}}
+
+do_catchsql_test 17.4 {
+  WITH i AS (
+    WITH j AS (SELECT 5)
+    SELECT 5 FROM t1 UNION SELECT 8 FROM t11
+  )
+  SELECT * FROM i;
+} {1 {no such table: t11}}
+
+do_execsql_test 17.5 {
+  WITH 
+  x1 AS (SELECT 10),
+  x2 AS (SELECT * FROM x1),
+  x3 AS (
+    WITH x1 AS (SELECT 11)
+    SELECT * FROM x2 UNION ALL SELECT * FROM x2
+  )
+  SELECT * FROM x3;
+} {10 10}
+
+do_execsql_test 17.6 {
+  WITH 
+  x1 AS (SELECT 10),
+  x2 AS (SELECT * FROM x1),
+  x3 AS (
+    WITH x1 AS (SELECT 11)
+    SELECT * FROM x2 UNION ALL SELECT * FROM x1
+  )
+  SELECT * FROM x3;
+} {10 11}
+
+do_execsql_test 17.7 {
+  WITH 
+  x1 AS (SELECT 10),
+  x2 AS (SELECT * FROM x1),
+  x3 AS (
+    WITH 
+      x1 AS ( SELECT 11 ),
+      x4 AS ( SELECT * FROM x2 )
+    SELECT * FROM x4 UNION ALL SELECT * FROM x1
+  )
+  SELECT * FROM x3;
+} {10 11}
+
+do_execsql_test 17.8 {
+  WITH 
+  x1 AS (SELECT 10),
+  x2 AS (SELECT * FROM x1),
+  x3 AS (
+    WITH 
+      x1 AS ( SELECT 11 ),
+      x4 AS ( SELECT * FROM x2 )
+    SELECT * FROM x4 UNION ALL SELECT * FROM x1
+  )
+  SELECT * FROM x3;
+} {10 11}
+
+do_execsql_test 17.9 {
+  WITH 
+  x1 AS (SELECT 10),
+  x2 AS (SELECT 11),
+  x3 AS (
+    SELECT * FROM x1 UNION ALL SELECT * FROM x2
+  ),
+  x4 AS (
+    WITH 
+    x1 AS (SELECT 12),
+    x2 AS (SELECT 13)
+    SELECT * FROM x3
+  )
+  SELECT * FROM x4;
+} {10 11}
+
+# Added to test a fix to a faulty assert() discovered by libFuzzer.
+#
+do_execsql_test 18.1 {
+  WITH xyz(x) AS (VALUES(NULL) UNION SELECT round(1<x) FROM xyz ORDER BY 1)
+  SELECT quote(x) FROM xyz;
+} {NULL}
+do_execsql_test 18.2 {
+  WITH xyz(x) AS (
+    SELECT printf('%d', 5) * NULL
+    UNION SELECT round(1<1+x) 
+    FROM xyz ORDER BY 1
+  )
+  SELECT 1 FROM xyz;
+} 1
+
+# EXPLAIN QUERY PLAN on a self-join of a CTE
+#
+do_execsql_test 19.1a {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(x);
+}
+do_eqp_test 19.1b {
+  WITH
+    x1(a) AS (values(100))
+  INSERT INTO t1(x)
+    SELECT * FROM (WITH x2(y) AS (SELECT * FROM x1) SELECT y+a FROM x1, x2);
+  SELECT * FROM t1;
+} {
+  QUERY PLAN
+  |--MATERIALIZE x1
+  |  `--SCAN CONSTANT ROW
+  |--SCAN x1
+  `--SCAN x1
+}
+
+# 2017-10-28.
+# See check-in https://sqlite.org/src/info/0926df095faf72c2
+# Tried to optimize co-routine processing by changing a Copy opcode
+# into SCopy.  But OSSFuzz found two (similar) cases where that optimization
+# does not work.
+#
+do_execsql_test 20.1 {
+  WITH c(i)AS(VALUES(9)UNION SELECT~i FROM c)SELECT max(5)>i fROM c;
+} {0}
+do_execsql_test 20.2 {
+  WITH c(i)AS(VALUES(5)UNIoN SELECT 0)SELECT min(1)-i fROM c;
+} {1}
+
+# 2018-12-26
+# Two different CTE tables with the same name appear in within a single FROM
+# clause due to the query-flattener optimization.  make sure this does not cause
+# problems.  This problem was discovered by Matt Denton.
+#
+do_execsql_test 21.1 {
+   WITH RECURSIVE t21(a,b) AS (
+    WITH t21(x) AS (VALUES(1))
+    SELECT x, x FROM t21 ORDER BY 1
+  )
+  SELECT * FROM t21 AS tA, t21 AS tB
+} {1 1 1 1}
+do_execsql_test 21.1b {
+   /* This variant from chromium bug 922312 on 2019-01-16 */
+   WITH RECURSIVE t21(a,b) AS (
+    WITH t21(x) AS (VALUES(1))
+    SELECT x, x FROM t21 ORDER BY 1 LIMIT 5
+  )
+  SELECT * FROM t21 AS tA, t21 AS tB
+} {1 1 1 1}
+do_execsql_test 21.2 {
+  SELECT printf('',
+     EXISTS (WITH RECURSIVE Table0 AS (WITH Table0 AS (SELECT DISTINCT 1)
+                                       SELECT *, * FROM Table0 ORDER BY 1 DESC)
+             SELECT * FROM Table0  NATURAL JOIN  Table0));
+} {{}}
+
+# 2019-01-17
+# Make sure crazy nexted CTE joins terminate with an error quickly.
+#
+do_catchsql_test 22.1 {
+  WITH RECURSIVE c AS NOT MATERIALIZED (
+     WITH RECURSIVE c AS NOT MATERIALIZED (
+        WITH RECURSIVE c AS NOT MATERIALIZED (
+           WITH RECURSIVE c AS NOT MATERIALIZED (
+               WITH  c AS (VALUES(0))
+               SELECT 1 FROM c LEFT JOIN c ON ltrim(1)
+           )
+           SELECT 1 FROM c,c,c,c,c,c,c,c,c
+        )
+        SELECT  2 FROM c,c,c,c,c,c,c,c,c
+     )
+     SELECT 3 FROM c,c,c,c,c,c,c,c,c
+  )
+  SELECT 4 FROM c,c,c,c,c,c,c,c,c;
+} {1 {too many FROM clause terms, max: 200}}
+
+# 2019-05-22
+# ticket https://www.sqlite.org/src/tktview/ce823231949d3abf42453c8f20
+#
+sqlite3 db :memory:
+do_execsql_test 23.1 {
+  CREATE TABLE t1(id INTEGER NULL PRIMARY KEY, name Text);
+  INSERT INTO t1 VALUES (1, 'john');
+  INSERT INTO t1 VALUES (2, 'james');
+  INSERT INTO t1 VALUES (3, 'jingle');
+  INSERT INTO t1 VALUES (4, 'himer');
+  INSERT INTO t1 VALUES (5, 'smith');
+  CREATE VIEW v2 AS
+    WITH t4(Name) AS (VALUES ('A'), ('B'))
+    SELECT Name Name FROM t4;
+  CREATE VIEW v3 AS
+    WITH t4(Att, Val, Act) AS (VALUES
+      ('C', 'D', 'E'),
+      ('F', 'G', 'H')
+    )
+    SELECT D.Id Id, P.Name Protocol, T.Att Att, T.Val Val, T.Act Act
+    FROM t1 D
+    CROSS JOIN v2 P
+    CROSS JOIN t4 T;
+  SELECT * FROM v3;
+} {1 A C D E 1 A F G H 1 B C D E 1 B F G H 2 A C D E 2 A F G H 2 B C D E 2 B F G H 3 A C D E 3 A F G H 3 B C D E 3 B F G H 4 A C D E 4 A F G H 4 B C D E 4 B F G H 5 A C D E 5 A F G H 5 B C D E 5 B F G H}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 24.1 {
+  CREATE TABLE t1(a, b, c);
+  CREATE VIEW v1 AS SELECT max(a), min(b) FROM t1 GROUP BY c;
+}
+do_test 24.1 {
+  set program [db eval {EXPLAIN SELECT * FROM v1 AS aa, v1 AS bb, v1 AS cc}]
+  expr [lsearch $program OpenDup]>0
+} {1}
+do_execsql_test 24.2 {
+  ATTACH "" AS aux;
+  CREATE VIEW aux.v3 AS VALUES(1);
+  CREATE VIEW main.v3 AS VALUES(3);
+
+  CREATE VIEW aux.v2 AS SELECT * FROM v3;
+  CREATE VIEW main.v2 AS SELECT * FROM v3;
+
+  SELECT * FROM main.v2 AS a, aux.v2 AS b, aux.v2 AS c, main.v2 AS d;
+} {
+  3 1 1 3
+}
+
+# 2020-01-02 chromium ticket 1033461
+# Do not allow the generated name of a CTE be "true" or "false" as
+# such a label might be later confused for the boolean literals of
+# the same name, causing inconsistencies in the abstract syntax
+# tree.  This problem first arose in version 3.23.0 when SQLite
+# began recognizing "true" and "false" as boolean literals, but also
+# had to continue to recognize "true" and "false" as identifiers for
+# backwards compatibility.
+#
+foreach {id dual} {
+  1  {CREATE TABLE dual AS SELECT 'X' AS dummy}
+  2  {CREATE TEMP TABLE dual AS SELECT 'X' AS dummy}
+  3  {CREATE VIEW dual(dummy) AS VALUES('X')}
+  4  {CREATE TEMP VIEW dual(dummy) AS VALUES('X')}
+} {
+  reset_db
+  db eval $dual
+  do_execsql_test 25.$id {
+    WITH cte1 AS (
+      SELECT TRUE, (
+        WITH cte2 AS (SELECT avg(DISTINCT TRUE) FROM dual)
+        SELECT 2571 FROM cte2
+      ) AS subquery1
+      FROM dual
+      GROUP BY 1
+    )
+    SELECT (SELECT 1324 FROM cte1) FROM cte1;
+  } {1324}
+}
+
+do_catchsql_test 26.0 {
+  WITH i(x) AS ( 
+    VALUES(1) UNION ALL SELECT x+1 FRO, a.b,O. * ,I¬i O, a.b,O. * ORDER BY 1
+  )
+  SELECT x,O. * O FROM i ¬I,I? 10;
+} {1 {near "O": syntax error}}
+
+# 2020-09-17 ticket c51489c3b8f919c5
+# DISTINCT cannot be ignored in a UNION ALL recursive CTE
+#
+reset_db
+do_execsql_test 26.1 {
+  CREATE TABLE t (label VARCHAR(10), step INTEGER);
+  INSERT INTO T VALUES('a', 1);
+  INSERT INTO T VALUES('a', 1);
+  INSERT INTO T VALUES('b', 1);
+  WITH RECURSIVE cte(label, step) AS (
+      SELECT DISTINCT * FROM t 
+    UNION ALL 
+      SELECT label, step + 1 FROM cte WHERE step < 3
+  )
+  SELECT * FROM cte ORDER BY +label, +step;
+} {a 1 a 2 a 3 b 1 b 2 b 3}
+do_execsql_test 26.2 {
+  WITH RECURSIVE cte(label, step) AS (
+      SELECT * FROM t 
+    UNION
+      SELECT label, step + 1 FROM cte WHERE step < 3
+  )
+  SELECT * FROM cte ORDER BY +label, +step;
+} {a 1 a 2 a 3 b 1 b 2 b 3}
+do_execsql_test 26.3 {
+  CREATE TABLE tworow(x);
+  INSERT INTO tworow(x) VALUES(1),(2);
+  DELETE FROM t WHERE rowid=2;
+  WITH RECURSIVE cte(label, step) AS (
+      SELECT * FROM t
+    UNION ALL
+      SELECT DISTINCT label, step + 1 FROM cte, tworow WHERE step < 3
+  )
+  SELECT * FROM cte ORDER BY +label, +step;
+} {a 1 a 2 a 3 b 1 b 2 b 3}
+
+# 2021-05-20
+# forum post https://sqlite.org/forum/forumpost/8590e3f6dc
+#
+reset_db
+do_execsql_test 27.1 {
+  CREATE TABLE t1(k);
+  CREATE TABLE log(k, cte_map, main_map);
+  CREATE TABLE map(k, v);
+  INSERT INTO map VALUES(1, 'main1'), (2, 'main2');
+  
+  CREATE TRIGGER tr1 AFTER INSERT ON t1 BEGIN
+    INSERT INTO log
+        WITH map(k,v) AS (VALUES(1,'cte1'),(2,'cte2'))
+        SELECT
+          new.k,
+          (SELECT v FROM map WHERE k=new.k),
+          (SELECT v FROM main.map WHERE k=new.k);
+  END;
+  
+  INSERT INTO t1 VALUES(1);
+  INSERT INTO t1 VALUES(2);
+  SELECT k, cte_map, main_map, '|' FROM log ORDER BY k;
+} {1 cte1 main1 | 2 cte2 main2 |}
+
+finish_test
diff --git a/test/with2.test b/test/with2.test
new file mode 100644
index 0000000000000000000000000000000000000000..68790fe860fe9720c6879b05b1c7e116f8a36523
--- /dev/null
+++ b/test/with2.test
@@ -0,0 +1,638 @@
+# 2014 January 11
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the WITH clause.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix with2
+
+ifcapable {!cte} {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a);
+  INSERT INTO t1 VALUES(1);
+  INSERT INTO t1 VALUES(2);
+}
+
+do_execsql_test 1.1 {
+  WITH x1 AS (SELECT * FROM t1)
+  SELECT sum(a) FROM x1;
+} {3}
+
+do_execsql_test 1.2 {
+  WITH x1 AS (SELECT * FROM t1)
+  SELECT (SELECT sum(a) FROM x1);
+} {3}
+
+do_execsql_test 1.3 {
+  WITH x1 AS (SELECT * FROM t1)
+  SELECT (SELECT sum(a) FROM x1);
+} {3}
+
+do_execsql_test 1.4 {
+  CREATE TABLE t2(i);
+  INSERT INTO t2 VALUES(2);
+  INSERT INTO t2 VALUES(3);
+  INSERT INTO t2 VALUES(5);
+
+  WITH x1   AS (SELECT i FROM t2),
+       i(a) AS (
+         SELECT min(i)-1 FROM x1 UNION SELECT a+1 FROM i WHERE a<10
+       )
+  SELECT a FROM i WHERE a NOT IN x1
+} {1 4 6 7 8 9 10}
+
+do_execsql_test 1.5 {
+  WITH x1 AS (SELECT a FROM t1),
+       x2 AS (SELECT i FROM t2),
+       x3 AS (SELECT * FROM x1, x2 WHERE x1.a IN x2 AND x2.i IN x1)
+  SELECT * FROM x3 
+} {2 2}
+
+do_execsql_test 1.6 {
+  CREATE TABLE t3 AS SELECT 3 AS x;
+  CREATE TABLE t4 AS SELECT 4 AS x;
+
+  WITH x1 AS (SELECT * FROM t3),
+       x2 AS (
+         WITH t3 AS (SELECT * FROM t4)
+         SELECT * FROM x1
+       )
+  SELECT * FROM x2;
+} {3}
+
+do_execsql_test 1.7 {
+  WITH x2 AS (
+         WITH t3 AS (SELECT * FROM t4)
+         SELECT * FROM t3
+       )
+  SELECT * FROM x2;
+} {4}
+
+do_execsql_test 1.8 {
+  WITH x2 AS (
+         WITH t3 AS (SELECT * FROM t4)
+         SELECT * FROM main.t3
+       )
+  SELECT * FROM x2;
+} {3}
+
+do_execsql_test 1.9 {
+  WITH x1 AS (SELECT * FROM t1)
+  SELECT (SELECT sum(a) FROM x1), (SELECT max(a) FROM x1);
+} {3 2}
+
+do_execsql_test 1.10 {
+  WITH x1 AS (SELECT * FROM t1)
+  SELECT (SELECT sum(a) FROM x1), (SELECT max(a) FROM x1), a FROM x1;
+} {3 2 1 3 2 2}
+
+do_execsql_test 1.11 {
+  WITH 
+  i(x) AS ( 
+    WITH 
+    j(x) AS ( SELECT * FROM i ), 
+    i(x) AS ( SELECT * FROM t1 )
+    SELECT * FROM j
+  )
+  SELECT * FROM i;
+} {1 2}
+
+do_execsql_test 1.12 {
+  WITH r(i) AS (
+    VALUES('.')
+    UNION ALL
+    SELECT i || '.' FROM r, (
+      SELECT x FROM x INTERSECT SELECT y FROM y
+    ) WHERE length(i) < 10
+  ),
+  x(x) AS ( VALUES(1) UNION ALL VALUES(2) UNION ALL VALUES(3) ),
+  y(y) AS ( VALUES(2) UNION ALL VALUES(4) UNION ALL VALUES(6) )
+
+  SELECT * FROM r;
+} {. .. ... .... ..... ...... ....... ........ ......... ..........}
+
+do_execsql_test 1.13 {
+  WITH r(i) AS (
+    VALUES('.')
+    UNION ALL
+    SELECT i || '.' FROM r, ( SELECT x FROM x WHERE x=2 ) WHERE length(i) < 10
+  ),
+  x(x) AS ( VALUES(1) UNION ALL VALUES(2) UNION ALL VALUES(3) )
+
+  SELECT * FROM r ORDER BY length(i) DESC;
+} {.......... ......... ........ ....... ...... ..... .... ... .. .}
+
+do_execsql_test 1.14 {
+  WITH 
+  t4(x) AS ( 
+    VALUES(4)
+    UNION ALL 
+    SELECT x+1 FROM t4 WHERE x<10
+  )
+  SELECT * FROM t4;
+} {4 5 6 7 8 9 10}
+
+do_execsql_test 1.15 {
+  WITH 
+  t4(x) AS ( 
+    VALUES(4)
+    UNION ALL 
+    SELECT x+1 FROM main.t4 WHERE x<10
+  )
+  SELECT * FROM t4;
+} {4 5}
+
+do_execsql_test 1.15.2 {
+  WITH 
+  t4(x) AS ( 
+    VALUES(4)
+    UNION ALL 
+    SELECT x+1 FROM (SELECT * FROM main.t4) WHERE x<10
+  )
+  SELECT * FROM t4;
+} {4 5}
+
+do_catchsql_test 1.16 {
+  WITH 
+  t4(x) AS ( 
+    VALUES(4)
+    UNION ALL 
+    SELECT x+1 FROM t4, main.t4, t4 WHERE x<10
+  )
+  SELECT * FROM t4;
+} {1 {multiple references to recursive table: t4}}
+
+
+#---------------------------------------------------------------------------
+# Check that variables can be used in CTEs.
+#
+set ::min [expr 3]
+set ::max [expr 9]
+do_execsql_test 2.1 {
+  WITH i(x) AS (
+    VALUES($min) UNION ALL SELECT x+1 FROM i WHERE x < $max
+  )
+  SELECT * FROM i;
+} {3 4 5 6 7 8 9}
+
+do_execsql_test 2.2 {
+  WITH i(x) AS (
+    VALUES($min) UNION ALL SELECT x+1 FROM i WHERE x < $max
+  )
+  SELECT x FROM i JOIN i AS j USING (x);
+} {3 4 5 6 7 8 9}
+
+#---------------------------------------------------------------------------
+# Check that circular references are rejected.
+#
+do_catchsql_test 3.1 {
+  WITH i(x, y) AS ( VALUES(1, (SELECT x FROM i)) )
+  SELECT * FROM i;
+} {1 {circular reference: i}}
+
+do_catchsql_test 3.2 {
+  WITH 
+  i(x) AS ( SELECT * FROM j ),
+  j(x) AS ( SELECT * FROM k ),
+  k(x) AS ( SELECT * FROM i )
+  SELECT * FROM i;
+} {1 {circular reference: i}}
+
+do_catchsql_test 3.3 {
+  WITH 
+  i(x) AS ( SELECT * FROM (SELECT * FROM j) ),
+  j(x) AS ( SELECT * FROM (SELECT * FROM i) )
+  SELECT * FROM i;
+} {1 {circular reference: i}}
+
+do_catchsql_test 3.4 {
+  WITH 
+  i(x) AS ( SELECT * FROM (SELECT * FROM j) ),
+  j(x) AS ( SELECT * FROM (SELECT * FROM i) )
+  SELECT * FROM j;
+} {1 {circular reference: j}}
+
+do_catchsql_test 3.5 {
+  WITH 
+  i(x) AS ( 
+    WITH j(x) AS ( SELECT * FROM i )
+    SELECT * FROM j
+  )
+  SELECT * FROM i;
+} {1 {circular reference: i}}
+
+#---------------------------------------------------------------------------
+# Try empty and very long column lists.
+#
+do_catchsql_test 4.1 {
+  WITH x() AS ( SELECT 1,2,3 )
+  SELECT * FROM x;
+} {1 {near ")": syntax error}}
+
+proc genstmt {n} {
+  for {set i 1} {$i<=$n} {incr i} {
+    lappend cols "c$i"
+    lappend vals $i
+  }
+  return "
+    WITH x([join $cols ,]) AS (SELECT [join $vals ,])
+    SELECT (c$n == $n) FROM x
+  "
+}
+
+do_execsql_test  4.2 [genstmt 10] 1
+do_execsql_test  4.3 [genstmt 100] 1
+do_execsql_test  4.4 [genstmt 255] 1
+set nLimit [sqlite3_limit db SQLITE_LIMIT_COLUMN -1]
+do_execsql_test  4.5 [genstmt [expr $nLimit-1]] 1
+do_execsql_test  4.6 [genstmt $nLimit] 1
+do_catchsql_test 4.7 [genstmt [expr $nLimit+1]] \
+  {1 {too many columns in result set}}
+
+#---------------------------------------------------------------------------
+# Check that adding a WITH clause to an INSERT disables the xfer 
+# optimization.
+#
+proc do_xfer_test {tn bXfer sql {res {}}} {
+  set ::sqlite3_xferopt_count 0
+  uplevel [list do_test $tn [subst -nocommands {
+    set dres [db eval {$sql}]
+    list [set ::sqlite3_xferopt_count] [set dres]
+  }] [list $bXfer $res]]
+}
+
+do_execsql_test 5.1 {
+  DROP TABLE IF EXISTS t1;
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t1(a, b);
+  CREATE TABLE t2(a, b);
+}
+
+do_xfer_test 5.2 1 { INSERT INTO t1 SELECT * FROM t2 }
+do_xfer_test 5.3 0 { INSERT INTO t1 SELECT a, b FROM t2 }
+do_xfer_test 5.4 0 { INSERT INTO t1 SELECT b, a FROM t2 }
+do_xfer_test 5.5 0 { 
+  WITH x AS (SELECT a, b FROM t2) INSERT INTO t1 SELECT * FROM x 
+}
+do_xfer_test 5.6 0 { 
+  WITH x AS (SELECT a, b FROM t2) INSERT INTO t1 SELECT * FROM t2 
+}
+do_xfer_test 5.7 0 { 
+ INSERT INTO t1 WITH x AS ( SELECT * FROM t2 ) SELECT * FROM x
+}
+do_xfer_test 5.8 0 { 
+ INSERT INTO t1 WITH x(a,b) AS ( SELECT * FROM t2 ) SELECT * FROM x
+}
+
+#---------------------------------------------------------------------------
+# Check that syntax (and other) errors in statements with WITH clauses
+# attached to them do not cause problems (e.g. memory leaks).
+#
+do_execsql_test 6.1 {
+  DROP TABLE IF EXISTS t1;
+  DROP TABLE IF EXISTS t2;
+  CREATE TABLE t1(a, b);
+  CREATE TABLE t2(a, b);
+}
+
+do_catchsql_test 6.2 {
+  WITH x AS (SELECT * FROM t1)
+  INSERT INTO t2 VALUES(1, 2,);
+} {1 {near ")": syntax error}}
+
+do_catchsql_test 6.3 {
+  WITH x AS (SELECT * FROM t1)
+  INSERT INTO t2 SELECT a, b, FROM t1;
+} {1 {near "FROM": syntax error}}
+
+do_catchsql_test 6.3 {
+  WITH x AS (SELECT * FROM t1)
+  INSERT INTO t2 SELECT a, b FROM abc;
+} {1 {no such table: abc}}
+
+do_catchsql_test 6.4 {
+  WITH x AS (SELECT * FROM t1)
+  INSERT INTO t2 SELECT a, b, FROM t1 a a a;
+} {1 {near "FROM": syntax error}}
+
+do_catchsql_test 6.5 {
+  WITH x AS (SELECT * FROM t1)
+  DELETE FROM t2 WHERE;
+} {1 {near ";": syntax error}}
+
+do_catchsql_test 6.6 { 
+  WITH x AS (SELECT * FROM t1) DELETE FROM t2 WHERE
+} {1 {incomplete input}}
+
+do_catchsql_test 6.7 { 
+  WITH x AS (SELECT * FROM t1) DELETE FROM t2 WHRE 1;
+} {/1 {near .* syntax error}/}
+
+do_catchsql_test 6.8 { 
+  WITH x AS (SELECT * FROM t1) UPDATE t2 SET a = 10, b = ;
+} {/1 {near .* syntax error}/}
+
+do_catchsql_test 6.9 { 
+  WITH x AS (SELECT * FROM t1) UPDATE t2 SET a = 10, b = 1 WHERE a===b;
+} {/1 {near .* syntax error}/}
+
+do_catchsql_test 6.10 {
+  WITH x(a,b) AS (
+    SELECT 1, 1
+    UNION ALL
+    SELECT a*b,a+b FROM x WHERE c=2
+  )
+  SELECT * FROM x
+} {1 {no such column: c}}
+
+#-------------------------------------------------------------------------
+# Recursive queries in IN(...) expressions.
+#
+do_execsql_test 7.1 {
+  CREATE TABLE t5(x INTEGER);
+  CREATE TABLE t6(y INTEGER);
+
+  WITH s(x) AS ( VALUES(7) UNION ALL SELECT x+7 FROM s WHERE x<49 )
+  INSERT INTO t5 
+  SELECT * FROM s;
+
+  INSERT INTO t6 
+  WITH s(x) AS ( VALUES(2) UNION ALL SELECT x+2 FROM s WHERE x<49 )
+  SELECT * FROM s;
+}
+
+do_execsql_test 7.2 {
+  SELECT * FROM t6 WHERE y IN (SELECT x FROM t5)
+} {14 28 42}
+
+do_execsql_test 7.3 {
+  WITH ss AS (SELECT x FROM t5)
+  SELECT * FROM t6 WHERE y IN (SELECT x FROM ss)
+} {14 28 42}
+
+do_execsql_test 7.4 {
+  WITH ss(x) AS ( VALUES(7) UNION ALL SELECT x+7 FROM ss WHERE x<49 )
+  SELECT * FROM t6 WHERE y IN (SELECT x FROM ss)
+} {14 28 42}
+
+do_execsql_test 7.5 {
+  SELECT * FROM t6 WHERE y IN (
+    WITH ss(x) AS ( VALUES(7) UNION ALL SELECT x+7 FROM ss WHERE x<49 )
+    SELECT x FROM ss
+  )
+} {14 28 42}
+
+#-------------------------------------------------------------------------
+# At one point the following was causing an assertion failure and a 
+# memory leak.
+#
+do_execsql_test 8.1 {
+  CREATE TABLE t7(y);
+  INSERT INTO t7 VALUES(NULL);
+  CREATE VIEW v AS SELECT * FROM t7 ORDER BY y;
+}
+
+do_execsql_test 8.2 {
+  WITH q(a) AS (
+    SELECT 1
+    UNION 
+    SELECT a+1 FROM q, v WHERE a<5
+  )
+  SELECT * FROM q;
+} {1 2 3 4 5}
+
+do_execsql_test 8.3 {
+  WITH q(a) AS (
+    SELECT 1
+    UNION ALL
+    SELECT a+1 FROM q, v WHERE a<5
+  )
+  SELECT * FROM q;
+} {1 2 3 4 5}
+
+# 2021-03-18
+# Ticket bb8a9fd4a9b7fce5
+reset_db
+do_execsql_test 9.1 {
+  WITH xyz(a) AS (
+    WITH abc AS ( SELECT 1234 ) SELECT * FROM abc
+  )
+  SELECT * FROM xyz AS one, xyz AS two, (
+    SELECT * FROM xyz UNION ALL SELECT * FROM xyz
+  );
+} {1234 1234 1234 1234 1234 1234}
+ifcapable vtab {
+load_static_extension db series
+do_execsql_test 9.2 {
+  WITH
+    cst(rsx, rsy) AS  (
+      SELECT 100, 100
+    ),
+    cst2(minx, maxx, stepx, miny, maxy, stepy, qualitativex, qualitativey) AS (
+      SELECT NULL, NULL, NULL, NULL, NULL, NULL, 0, 0
+    ),
+    ds0(m, n, x, y, x2, y2, title, size, mark, label, markmode) AS (
+      SELECT 1, 2, 3, 4, 5, 6, 7 , 8, 9, 10, 11
+    ),
+    ds(m, n, x, y, x2, y2, title, size, mark, label, markmode) AS (
+      SELECT m, n, x,
+        y, x2,
+        y2,
+        title, size, mark, label, markmode
+      FROM ds0
+      WINDOW w AS (PARTITION BY m, x ORDER BY n)
+    ),
+    d(m, n, x, y, x2, y2, labelx,labely,title,size,mark,label,markmode) AS (
+      SELECT m, n, x, y,  x2, y2, x, y, title, size, mark, label, markmode
+      FROM ds, cst2
+    ),
+    ylabels(y, label) AS (
+      SELECT y, MIN(labely) FROM d GROUP BY y
+    ),
+    yaxis(maxy, miny, stepy , minstepy) AS (
+      WITH
+        xt0(minx, maxx) AS (
+          SELECT  coalesce(miny, min(min(y2),
+                  min(y))), coalesce(maxy, max(max(y2),
+                  max(y))) + qualitativey
+           FROM d, cst2
+        ),
+        xt1(mx, mn) AS (SELECT maxx, minx FROM xt0),
+        xt2(mx, mn, step) AS (SELECT mx, mn, (mx-mn)  FROM xt1),
+        
+        xt3(mx, mn, ms) AS (
+          SELECT mx, mn, first_value(rs) OVER (order by x desc) AS ms
+            FROM (SELECT mx, mn, step, f,(mx-mn) as rng,
+                         1.0*step/f as rs, 1.0*(mx-mn)/(step/f) AS x
+                    FROM xt2, (SELECT 1 AS f UNION ALL SELECT 2
+                                UNION ALL SELECT 4
+                                UNION ALL SELECT 5)) AS src
+                   WHERE x < 10 limit 1),
+        xt4(minstepy) AS (
+          SELECT MIN(abs(y2-y)) FROM d WHERE y2 != y
+        )
+      SELECT (mx/ms)*ms, (mn/ms)*ms, coalesce(stepy, ms),
+                     coalesce(minstepy, ms, stepy)  FROM xt3, cst2,xt4
+    ),
+    distinct_mark_n_m(mark, ze, zem, title) AS (
+      SELECT DISTINCT mark, n AS ze, m AS zem, title FROM ds0
+    ),
+    facet0(m, mi, title, radial) AS (
+      SELECT md, row_number() OVER () - 1, title, 'radial'
+                      IN (SELECT mark FROM distinct_mark_n_m WHERE zem = md)
+      FROM (SELECT DISTINCT zem AS md, title AS title
+                       FROM distinct_mark_n_m ORDER BY 2, 1)
+    ),
+    facet(m, mi, xorigin, yorigin, title, radial) AS (
+      SELECT m, mi,
+        rsx * 1.2 * IFNULL(CASE WHEN (
+          0
+        ) > 0 THEN mi / (
+          0
+        ) ELSE mi % (
+          2
+        )  END, mi),
+        rsy  * 1.2 * IFNULL(CASE WHEN (
+          2
+        ) > 0 THEN mi / (
+          2
+        ) ELSE mi / (
+          0
+        )  END, 0),
+        title, radial FROM facet0, cst
+    ),
+    radygrid(m, mi, tty, wty, ttx, ttx2, xorigin, yorigin) AS (
+      SELECT m, mi,  rsy / 2 / ((maxy-miny)/stepy) * (value-1) AS tty,
+             coalesce(NULL, miny + stepy * (value-1)) AS wty,
+             xorigin, xorigin+rsx, xorigin + rsx / 2,
+             yorigin + rsy / 2
+        FROM generate_series(1), yaxis, cst,
+             facet LEFT JOIN ylabels ON ylabels.y = (miny + (value-1) * stepy)
+       WHERE radial AND stop = 1+1.0*(maxy-miny)/stepy
+    ),
+    ypos(m, mi, pcx, pcy, radial) AS (
+      SELECT m, mi, xorigin, yorigin + CASE
+        WHEN 0 BETWEEN miny AND maxy THEN
+          rsy - (0 - miny) * rsy / (maxy-miny)
+        WHEN 0 >= maxy THEN 0
+        ELSE  rsy
+      END, radial FROM yaxis, cst, facet WHERE NOT radial
+      UNION ALL
+      SELECT m, mi, xorigin + rsx / 2, yorigin + (CASE
+        WHEN 0 BETWEEN miny AND maxy THEN
+          rsy - (0 - miny) * rsy / 2 / (maxy-miny)
+        WHEN 0 >= maxy THEN 0
+        ELSE  rsy
+      END ) / 2, radial FROM yaxis, cst, facet WHERE radial
+    )
+  SELECT * FROM radygrid , ypos;
+} {}
+} ;# end ifcapable vtab
+
+# 2021-03-19
+# dbsqlfuzz 01b8355086998f0a452cb31208e80b9d29ca739a
+#
+# Correlated CTEs should not be materialized.
+#
+reset_db
+do_execsql_test 10.1 {
+  SELECT 1 AS c WHERE (
+    SELECT (
+      WITH t1(a) AS (VALUES( c ))
+      SELECT ( SELECT t1a.a FROM t1 AS t1a, t1 AS t1x )
+      FROM t1 AS xyz GROUP BY 1
+    )
+  )
+} {1}
+
+# 2021-05-21
+# Forum post https://sqlite.org/forum/forumpost/aa4a7a3980
+#
+ifcapable altertable {
+reset_db
+  do_execsql_test 11.1 {
+    CREATE TABLE t1(a);
+    CREATE VIEW v2(c) AS
+        WITH x AS (
+          WITH y AS (
+             WITH z AS(SELECT * FROM t1)
+             SELECT * FROM v2
+          ) SELECT a
+        ) SELECT * from t1;
+    ALTER TABLE t1 RENAME COLUMN a TO b;
+    SELECT sql FROM sqlite_schema WHERE name='t1';
+  } {{CREATE TABLE t1(b)}}
+  do_catchsql_test 11.2 {
+    INSERT INTO t1 VALUES(55);
+    SELECT * FROM v2;
+  } {0 55}
+  do_catchsql_test 11.3 {
+    DROP VIEW v2;
+    CREATE VIEW v2(c) AS
+        WITH x AS (
+          WITH y AS (
+             WITH z AS(SELECT * FROM t1)
+             SELECT * FROM v2
+          ) SELECT a
+        ) SELECT * from t1, x;
+    SELECT * FROM v2;
+  } {1 {no such column: a}}
+  do_catchsql_test 11.4 {
+    DROP VIEW v2;
+    CREATE VIEW v2(c) AS
+        WITH x AS (
+          WITH y AS (
+             WITH z AS(SELECT * FROM t1)
+             SELECT * FROM v2
+          ) SELECT *
+        ) SELECT * from t1, x;
+    SELECT * FROM v2;
+  } {1 {no tables specified}}
+  do_catchsql_test 11.5 {
+    WITH x AS (
+      WITH y AS (
+         WITH z AS(SELECT * FROM t1)
+         SELECT * FROM no_such_table
+      ) SELECT a
+    ) SELECT * from t1;
+  } {0 55}
+}
+
+# 2021-05-23 dbsqlfuzz 6b7a144674e215f06ddfeb9042c873d9ee956ac0 */
+reset_db
+ifcapable altertable {
+  do_execsql_test 12.1 {
+    CREATE TABLE t1(a);
+    INSERT INTO t1 VALUES(1),('hello'),(4.25),(NULL),(x'3c626c6f623e');
+    CREATE VIEW v2(c) AS WITH x AS (WITH y AS (WITH z AS(SELECT * FROM t1) SELECT * FROM v2) SELECT a) SELECT * from t1;
+    CREATE VIEW v3(c) AS WITH x AS (WITH y AS (WITH z AS(SELECT * FROM v2) SELECT * FROM v3) SELECT a) SELECT * from t1;
+    ALTER TABLE t1 RENAME TO t1x;
+    SELECT quote(c) FROM v3;
+  } {1 'hello' 4.25 NULL X'3C626C6F623E'}
+}
+
+# 2021-08-11 https://sqlite.org/forum/forumpost/d496c3d29bc93736
+reset_db
+do_execsql_test 13.1 {
+  WITH
+    t1(x) AS (SELECT 111),
+    t2(y) AS (SELECT 222),
+    t3(z) AS (SELECT * FROM t2 WHERE false UNION ALL SELECT * FROM t2)
+  SELECT * FROM t1, t3;
+} {111 222}
+
+finish_test
diff --git a/test/with3.test b/test/with3.test
new file mode 100644
index 0000000000000000000000000000000000000000..9b110debf3a33874eb9a4170e8922ba985d7f7ea
--- /dev/null
+++ b/test/with3.test
@@ -0,0 +1,248 @@
+# 2015-11-07
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the WITH clause.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix with3
+
+ifcapable {!cte} {
+  finish_test
+  return
+}
+
+# Test problems found by Kostya Serebryany using 
+# LibFuzzer.  (http://llvm.org/docs/LibFuzzer.html)
+#
+do_catchsql_test 1.0 {
+  WITH i(x) AS (
+    WITH j AS (SELECT 10)
+    SELECT 5 FROM t0 UNION SELECT 8 FROM m
+  )
+  SELECT * FROM i;
+} {1 {no such table: m}}
+
+# 2019-11-09 dbfuzzcheck find
+do_catchsql_test 1.1 {
+  CREATE VIEW v1(x,y) AS
+    WITH t1(a,b) AS (VALUES(1,2))
+    SELECT * FROM nosuchtable JOIN t1;
+  SELECT * FROM v1;
+} {1 {no such table: main.nosuchtable}}
+
+# Additional test cases that came out of the work to
+# fix for Kostya's problem.
+#
+do_execsql_test 2.0 {
+ WITH
+  x1 AS (SELECT 10),
+  x2 AS (SELECT 11),
+  x3 AS (
+    SELECT * FROM x1 UNION ALL SELECT * FROM x2
+  ),
+  x4 AS (
+    WITH
+    x1 AS (SELECT 12),
+    x2 AS (SELECT 13)
+    SELECT * FROM x3
+  )
+  SELECT * FROM x4;
+
+} {10 11}
+
+do_execsql_test 2.1 {
+  CREATE TABLE t1(x);
+  WITH
+    x1(a) AS (values(100))
+  INSERT INTO t1(x)
+    SELECT * FROM (WITH x2(y) AS (SELECT * FROM x1) SELECT y+a FROM x1, x2);
+  SELECT * FROM t1;
+} {200}
+
+#-------------------------------------------------------------------------
+# Test that the planner notices LIMIT clauses on recursive WITH queries.
+#
+
+ifcapable analyze {
+  do_execsql_test 3.1.1 {
+    CREATE TABLE y1(a, b);
+    CREATE INDEX y1a ON y1(a);
+
+    WITH cnt(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM cnt LIMIT 1000)
+      INSERT INTO y1 SELECT i%10, i FROM cnt;
+    ANALYZE;
+
+  }
+
+  do_eqp_test 3.1.2 {
+    WITH cnt(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM cnt LIMIT 1)
+    SELECT * FROM cnt, y1 WHERE i=a
+  } [string map {"\n  " \n} {
+    QUERY PLAN
+    |--CO-ROUTINE cnt
+    |  |--SETUP
+    |  |  `--SCAN CONSTANT ROW
+    |  `--RECURSIVE STEP
+    |     `--SCAN cnt
+    |--SCAN cnt
+    `--SEARCH y1 USING INDEX y1a (a=?)
+  }]
+
+  do_eqp_test 3.1.3 {
+    WITH cnt(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM cnt LIMIT 1000000)
+    SELECT * FROM cnt, y1 WHERE i=a
+  } [string map {"\n  " \n} {
+    QUERY PLAN
+    |--CO-ROUTINE cnt
+    |  |--SETUP
+    |  |  `--SCAN CONSTANT ROW
+    |  `--RECURSIVE STEP
+    |     `--SCAN cnt
+    |--SCAN y1
+    |--BLOOM FILTER ON cnt (i=?)
+    `--SEARCH cnt USING AUTOMATIC COVERING INDEX (i=?)
+  }]
+}
+
+do_execsql_test 3.2.1 {
+  CREATE TABLE w1(pk INTEGER PRIMARY KEY, x INTEGER);
+  CREATE TABLE w2(pk INTEGER PRIMARY KEY);
+}
+
+do_eqp_test 3.2.2 {
+  WITH RECURSIVE c(w,id) AS (SELECT 0, (SELECT pk FROM w2 LIMIT 1)
+     UNION ALL SELECT c.w + 1, x FROM w1, c LIMIT 1)
+     SELECT * FROM c, w2, w1
+     WHERE c.id=w2.pk AND c.id=w1.pk;
+} {
+  QUERY PLAN
+  |--CO-ROUTINE c
+  |  |--SETUP
+  |  |  |--SCAN CONSTANT ROW
+  |  |  `--SCALAR SUBQUERY xxxxxx
+  |  |     `--SCAN w2
+  |  `--RECURSIVE STEP
+  |     |--SCAN w1
+  |     `--SCAN c
+  |--SCAN c
+  |--SEARCH w2 USING INTEGER PRIMARY KEY (rowid=?)
+  `--SEARCH w1 USING INTEGER PRIMARY KEY (rowid=?)
+}
+
+do_execsql_test 4.0 {
+  WITH t5(t5col1) AS (
+    SELECT (
+      WITH t3(t3col1) AS (
+        WITH t2 AS (
+          WITH t1 AS (SELECT 1 AS c1 GROUP BY 1) 
+          SELECT a.c1 FROM t1 AS a, t1 AS b
+          WHERE anoncol1 = 1
+        )
+        SELECT (SELECT 1 FROM t2) FROM t2
+      ) 
+      SELECT t3col1 FROM t3 WHERE t3col1
+    ) FROM (SELECT 1 AS anoncol1)
+  )
+  SELECT t5col1, t5col1 FROM t5
+} {1 1}
+do_execsql_test 4.1 {
+  SELECT EXISTS (
+    WITH RECURSIVE Table0 AS (
+      WITH RECURSIVE Table0(Col0) AS (SELECT ALL 1  ) 
+      SELECT ALL (
+        WITH RECURSIVE Table0 AS (
+          WITH RECURSIVE Table0 AS (
+            WITH RECURSIVE Table0 AS (SELECT DISTINCT 1  GROUP BY 1  ) 
+            SELECT DISTINCT * FROM Table0 NATURAL INNER JOIN Table0
+            WHERE Col0 = 1  
+          )
+          SELECT ALL (SELECT DISTINCT * FROM Table0) FROM Table0 WHERE Col0 = 1
+        ) 
+        SELECT ALL * FROM Table0  NATURAL INNER JOIN  Table0      
+      ) FROM Table0 ) 
+      SELECT DISTINCT * FROM Table0  NATURAL INNER JOIN  Table0      
+    ); 
+} {1}
+
+# 2020-01-18 chrome ticket 1043236
+# Correct handling of the sequence:
+#    OP_OpenEphem
+#    OP_OpenDup
+#    Op_OpenEphem
+#    OP_OpenDup
+#
+do_execsql_test 4.2 {
+  SELECT (
+    WITH t1(a) AS (VALUES(1))
+    SELECT (
+      WITH t2(b) AS (
+        WITH t3(c) AS (
+          WITH t4(d) AS (VALUES('elvis'))
+          SELECT t4a.d FROM t4 AS t4a JOIN t4 AS t4b LEFT JOIN t4 AS t4c
+        )
+        SELECT c FROM t3 WHERE a = 1
+      )
+      SELECT t2a.b FROM t2 AS t2a JOIN t2 AS t2x
+    )
+    FROM t1 GROUP BY 1
+  )
+  GROUP BY 1;
+} {elvis}
+
+# 2021-02-13
+# Avoid manifesting the same CTE multiple times.
+#
+do_eqp_test 5.1 {
+  WITH RECURSIVE c(x) AS (VALUES(0) UNION ALL SELECT x+1 FROM c WHERE x<1)
+  SELECT x1.x||x2.x||x3.x||x4.x FROM c AS x1, c AS x2, c AS x3, c AS x4
+  ORDER BY 1;
+} {
+  QUERY PLAN
+  |--MATERIALIZE c
+  |  |--SETUP
+  |  |  `--SCAN CONSTANT ROW
+  |  `--RECURSIVE STEP
+  |     `--SCAN c
+  |--SCAN x1
+  |--SCAN x2
+  |--SCAN x3
+  |--SCAN x4
+  `--USE TEMP B-TREE FOR ORDER BY
+}
+do_execsql_test 5.2 {
+  WITH RECURSIVE c(x) AS (VALUES(0) UNION ALL SELECT x+1 FROM c WHERE x<1)
+  SELECT x1.x||x2.x||x3.x||x4.x FROM c AS x1, c AS x2, c AS x3, c AS x4
+  ORDER BY 1;
+} {0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111}
+
+#-------------------------------------------------------------------------
+# At one point this would incorrectly report "circular reference: cte1"
+#
+do_catchsql_test 6.0 {
+  with
+    cte1(x, y) AS ( select 1, 2, 3 ),
+    cte2(z) as ( select 1 from cte1 )
+  select * from cte2, cte1;
+} {1 {table cte1 has 3 values for 2 columns}}
+
+do_catchsql_test 6.1 {
+  with
+    cte1(x, y) AS ( select 1, 2, 3 ),
+    cte2(z) as ( select 1 from cte1 UNION ALL SELECT z+1 FROM cte2 WHERE z<5)
+  select * from cte2, cte1;
+} {1 {table cte1 has 3 values for 2 columns}}
+
+
+
+
+finish_test
diff --git a/test/with4.test b/test/with4.test
new file mode 100644
index 0000000000000000000000000000000000000000..b0eeba6d14fcfbe1e48770bcb058076650d4f022
--- /dev/null
+++ b/test/with4.test
@@ -0,0 +1,52 @@
+# 2018-02-15
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the WITH clause in TRIGGERs and VIEWs.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix with4
+
+ifcapable {!cte} {
+  finish_test
+  return
+}
+
+do_execsql_test 100 {
+  ATTACH ':memory:' AS aux;
+  CREATE TABLE main.t1(a,b);
+  CREATE TABLE aux.t2(x,y);
+  INSERT INTO t1 VALUES(1,2);
+  INSERT INTO t2 VALUES(3,4);
+} {}
+do_catchsql_test 110 {
+  CREATE VIEW v1 AS SELECT * FROM t1, aux.t2;
+} {1 {view v1 cannot reference objects in database aux}}
+do_catchsql_test 120 {
+  CREATE VIEW v2 AS WITH v(m,n) AS (SELECT x,y FROM aux.t2) SELECT * FROM t1, v;
+} {1 {view v2 cannot reference objects in database aux}}
+do_catchsql_test 130 {
+  CREATE VIEW v2 AS WITH v(m,n) AS (SELECT 5,?2) SELECT * FROM t1, v;
+} {1 {parameters are not allowed in views}}
+
+do_catchsql_test 200 {
+  CREATE TRIGGER r1 AFTER INSERT ON t1 BEGIN
+     WITH v(m,n) AS (SELECT x,y FROM aux.t2) SELECT * FROM t1, v;
+  END;
+} {1 {trigger r1 cannot reference objects in database aux}}
+do_catchsql_test 210 {
+  CREATE TRIGGER r1 AFTER INSERT ON t1 BEGIN
+     WITH v(m,n) AS (SELECT 5,?2) SELECT * FROM t1, v;
+  END;
+} {1 {trigger cannot use variables}}
+
+finish_test
diff --git a/test/with5.test b/test/with5.test
new file mode 100644
index 0000000000000000000000000000000000000000..430c5f2de3f00793c0e83dd9ed867205e008dc16
--- /dev/null
+++ b/test/with5.test
@@ -0,0 +1,194 @@
+# 2020-10-19
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is recursive common table expressions with
+# multiple recursive terms in the compound select.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix with5
+
+ifcapable {!cte} {
+  finish_test
+  return
+}
+
+do_execsql_test 100 {
+  CREATE TABLE link(aa INT, bb INT);
+  CREATE INDEX link_f ON link(aa,bb);
+  CREATE INDEX link_t ON link(bb,aa);
+  INSERT INTO link(aa,bb) VALUES
+    (1,3),
+    (5,3),
+    (7,1),
+    (7,9),
+    (9,9),
+    (5,11),
+    (11,7),
+    (2,4),
+    (4,6),
+    (8,6);
+} {}
+do_execsql_test 110 {
+  WITH RECURSIVE closure(x) AS (
+     VALUES(1)
+     UNION
+     SELECT aa FROM closure, link WHERE link.bb=closure.x
+     UNION
+     SELECT bb FROM closure, link WHERE link.aa=closure.x
+  )
+  SELECT x FROM closure ORDER BY x;
+} {1 3 5 7 9 11}
+do_execsql_test 111 {
+  WITH RECURSIVE closure(x) AS (
+     VALUES(1)
+     UNION
+     SELECT aa FROM link, closure WHERE link.bb=closure.x
+     UNION
+     SELECT bb FROM closure, link WHERE link.aa=closure.x
+  )
+  SELECT x FROM closure ORDER BY x;
+} {1 3 5 7 9 11}
+do_execsql_test 112 {
+  WITH RECURSIVE closure(x) AS (
+     VALUES(1)
+     UNION
+     SELECT bb FROM closure, link WHERE link.aa=closure.x
+     UNION
+     SELECT aa FROM link, closure WHERE link.bb=closure.x
+  )
+  SELECT x FROM closure ORDER BY x;
+} {1 3 5 7 9 11}
+do_execsql_test 113 {
+  WITH RECURSIVE closure(x) AS (
+     VALUES(1),(200),(300),(400)
+     INTERSECT
+     VALUES(1)
+     UNION
+     SELECT bb FROM closure, link WHERE link.aa=closure.x
+     UNION
+     SELECT aa FROM link, closure WHERE link.bb=closure.x
+  )
+  SELECT x FROM closure ORDER BY x;
+} {1 3 5 7 9 11}
+do_execsql_test 114 {
+  WITH RECURSIVE closure(x) AS (
+     VALUES(1),(200),(300),(400)
+     UNION ALL
+     VALUES(2)
+     UNION
+     SELECT bb FROM closure, link WHERE link.aa=closure.x
+     UNION
+     SELECT aa FROM link, closure WHERE link.bb=closure.x
+  )
+  SELECT x FROM closure ORDER BY x;
+} {1 2 3 4 5 6 7 8 9 11 200 300 400}
+
+do_catchsql_test 120 {
+  WITH RECURSIVE closure(x) AS (
+     VALUES(1),(200),(300),(400)
+     UNION ALL
+     VALUES(2)
+     UNION ALL
+     SELECT bb FROM closure, link WHERE link.aa=closure.x
+     UNION
+     SELECT aa FROM link, closure WHERE link.bb=closure.x
+  )
+  SELECT x FROM closure ORDER BY x;
+} {1 {circular reference: closure}}
+do_catchsql_test 121 {
+  WITH RECURSIVE closure(x) AS (
+     VALUES(1),(200),(300),(400)
+     UNION ALL
+     VALUES(2)
+     UNION
+     SELECT bb FROM closure, link WHERE link.aa=closure.x
+     UNION ALL
+     SELECT aa FROM link, closure WHERE link.bb=closure.x
+  )
+  SELECT x FROM closure ORDER BY x;
+} {1 {circular reference: closure}}
+
+do_execsql_test 130 {
+  WITH RECURSIVE closure(x) AS (
+    SELECT 1 AS x
+    UNION
+    SELECT aa FROM link JOIN closure ON bb=x
+    UNION
+    SELECT bb FROM link JOIN closure on aa=x
+    ORDER BY x LIMIT 4
+  )
+  SELECT * FROM closure;
+} {1 3 5 7}
+do_execsql_test 131 {
+  WITH RECURSIVE closure(x) AS (
+    SELECT 1 AS x
+    UNION ALL
+    SELECT 2
+    UNION
+    SELECT aa FROM link JOIN closure ON bb=x
+    UNION
+    SELECT bb FROM link JOIN closure on aa=x
+    ORDER BY x LIMIT 4
+  )
+  SELECT * FROM closure;
+} {1 2 3 4}
+
+do_execsql_test 200 {
+  CREATE TABLE linkA(aa1,aa2);
+  INSERT INTO linkA(aa1,aa2) VALUES(1,3),(5,7),(9,11);
+  CREATE TABLE linkB(bb1,bb2);
+  INSERT INTO linkB(bb1,bb2) VALUES(7,9),(11,13),(3,5);
+  CREATE TABLE linkC(cc1,cc2);
+  INSERT INTO linkC(cc1,cc2) VALUES(1,2),(2,4),(6,8);
+  CREATE TABLE linkD(dd1,dd2);
+  INSERT INTO linkD(dd1,dd2) VALUES(4,6),(100,110);
+} {}
+do_execsql_test 210 {
+  WITH RECURSIVE closure(x) AS (
+    VALUES(1)
+    UNION ALL
+    SELECT aa2 FROM linkA JOIN closure ON x=aa1
+    UNION ALL
+    SELECT bb2 FROM linkB JOIN closure ON x=bb1
+    UNION ALL
+    SELECT cc2 FROM linkC JOIN closure ON x=cc1
+    UNION ALL
+    SELECT dd2 FROM linkD JOIN closure ON x=dd1
+  )
+  SELECT x FROM closure ORDER BY +x;
+} {1 2 3 4 5 6 7 8 9 11 13}
+do_execsql_test 220 {
+  CREATE TABLE linkA_ipk(aa1 INTEGER PRIMARY KEY,aa2);
+  INSERT INTO linkA_ipk(aa1,aa2) SELECT aa1, aa2 FROM linkA;
+  CREATE TABLE linkB_ipk(bb1 INTEGER PRIMARY KEY,bb2);
+  INSERT INTO linkB_ipk(bb1,bb2) SELECT bb1, bb2 FROM linkB;
+  CREATE TABLE linkC_ipk(cc1 INTEGER PRIMARY KEY,cc2);
+  INSERT INTO linkC_ipk(cc1,cc2) SELECT cc1, cc2 FROM linkC;
+  CREATE TABLE linkD_ipk(dd1 INTEGER PRIMARY KEY,dd2);
+  INSERT INTO linkD_ipk(dd1,dd2) SELECT dd1, dd2 FROM linkD;
+  WITH RECURSIVE closure(x) AS (
+    VALUES(1)
+    UNION ALL
+    SELECT aa2 FROM linkA_ipk JOIN closure ON x=aa1
+    UNION ALL
+    SELECT bb2 FROM linkB_ipk JOIN closure ON x=bb1
+    UNION ALL
+    SELECT cc2 FROM linkC_ipk JOIN closure ON x=cc1
+    UNION ALL
+    SELECT dd2 FROM linkD_ipk JOIN closure ON x=dd1
+  )
+  SELECT x FROM closure ORDER BY +x;
+} {1 2 3 4 5 6 7 8 9 11 13}
+
+
+finish_test
diff --git a/test/with6.test b/test/with6.test
new file mode 100644
index 0000000000000000000000000000000000000000..95e6305474ab7531a008ddc7ceb730273ca3a6e7
--- /dev/null
+++ b/test/with6.test
@@ -0,0 +1,421 @@
+# 2021-02-22
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is the MATERIALIZED hint to common table expressions
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set ::testprefix with6
+
+ifcapable {!cte} {
+  finish_test
+  return
+}
+
+do_execsql_test 100 {
+  WITH c(x) AS (VALUES(0),(1))
+  SELECT c1.x||c2.x||c3.x FROM c c1, c c2, c c3;
+} {000 001 010 011 100 101 110 111}
+do_eqp_test 101 {
+  WITH c(x) AS (VALUES(0),(1))
+  SELECT c1.x||c2.x||c3.x FROM c c1, c c2, c c3;
+} {
+  QUERY PLAN
+  |--MATERIALIZE c
+  |  `--SCAN 2 CONSTANT ROWS
+  |--SCAN c1
+  |--SCAN c2
+  `--SCAN c3
+}
+
+do_execsql_test 110 {
+  WITH c(x) AS MATERIALIZED (VALUES(0),(1))
+  SELECT c1.x||c2.x||c3.x FROM c c1, c c2, c c3;
+} {000 001 010 011 100 101 110 111}
+do_eqp_test 111 {
+  WITH c(x) AS MATERIALIZED (VALUES(0),(1))
+  SELECT c1.x||c2.x||c3.x FROM c c1, c c2, c c3;
+} {
+  QUERY PLAN
+  |--MATERIALIZE c
+  |  `--SCAN 2 CONSTANT ROWS
+  |--SCAN c1
+  |--SCAN c2
+  `--SCAN c3
+}
+
+# Even though the CTE is not materialized, the self-join optimization
+# kicks in and does the materialization for us.
+#
+do_execsql_test 120 {
+  WITH c(x) AS NOT MATERIALIZED (VALUES(0),(1))
+  SELECT c1.x||c2.x||c3.x FROM c c1, c c2, c c3;
+} {000 001 010 011 100 101 110 111}
+do_eqp_test 121 {
+  WITH c(x) AS NOT MATERIALIZED (VALUES(0),(1))
+  SELECT c1.x||c2.x||c3.x FROM c c1, c c2, c c3;
+} {
+  QUERY PLAN
+  |--MATERIALIZE c
+  |  `--SCAN 2 CONSTANT ROWS
+  |--SCAN c1
+  |--SCAN c2
+  `--SCAN c3
+}
+
+do_execsql_test 130 {
+  WITH c(x) AS NOT MATERIALIZED (VALUES(0),(1))
+  SELECT c1.x||c2.x||c3.x
+    FROM (SELECT x FROM c LIMIT 5) AS c1,
+         (SELECT x FROM c LIMIT 5) AS c2,
+         (SELECT x FROM c LIMIT 5) AS c3;
+} {000 001 010 011 100 101 110 111}
+do_eqp_test 131 {
+  WITH c(x) AS NOT MATERIALIZED (VALUES(0),(1))
+  SELECT c1.x||c2.x||c3.x
+    FROM (SELECT x FROM c LIMIT 5) AS c1,
+         (SELECT x FROM c LIMIT 5) AS c2,
+         (SELECT x FROM c LIMIT 5) AS c3;
+} {
+  QUERY PLAN
+  |--CO-ROUTINE c1
+  |  |--CO-ROUTINE c
+  |  |  `--SCAN 2 CONSTANT ROWS
+  |  `--SCAN c
+  |--MATERIALIZE c2
+  |  |--CO-ROUTINE c
+  |  |  `--SCAN 2 CONSTANT ROWS
+  |  `--SCAN c
+  |--MATERIALIZE c3
+  |  |--CO-ROUTINE c
+  |  |  `--SCAN 2 CONSTANT ROWS
+  |  `--SCAN c
+  |--SCAN c1
+  |--SCAN c2
+  `--SCAN c3
+}
+
+# The (SELECT x FROM c LIMIT N) subqueries get materialized once each.
+# Show multiple materializations are shown.  But there is only one
+# materialization for c, shown by the "SCAN 2 CONSTANT ROWS" line.
+#
+do_execsql_test 140 {
+  WITH c(x) AS MATERIALIZED (VALUES(0),(1))
+  SELECT c1.x||c2.x||c3.x
+    FROM (SELECT x FROM c LIMIT 5) AS c1,
+         (SELECT x FROM c LIMIT 6) AS c2,
+         (SELECT x FROM c LIMIT 7) AS c3;
+} {000 001 010 011 100 101 110 111}
+do_eqp_test 141 {
+  WITH c(x) AS MATERIALIZED (VALUES(0),(1))
+  SELECT c1.x||c2.x||c3.x
+    FROM (SELECT x FROM c LIMIT 5) AS c1,
+         (SELECT x FROM c LIMIT 6) AS c2,
+         (SELECT x FROM c LIMIT 7) AS c3;
+} {
+  QUERY PLAN
+  |--CO-ROUTINE c1
+  |  |--MATERIALIZE c
+  |  |  `--SCAN 2 CONSTANT ROWS
+  |  `--SCAN c
+  |--MATERIALIZE c2
+  |  `--SCAN c
+  |--MATERIALIZE c3
+  |  `--SCAN c
+  |--SCAN c1
+  |--SCAN c2
+  `--SCAN c3
+}
+
+do_execsql_test 150 {
+  WITH c(x) AS (VALUES(0),(1))
+  SELECT c1.x||c2.x||c3.x
+    FROM (SELECT x FROM c LIMIT 5) AS c1,
+         (SELECT x FROM c LIMIT 6) AS c2,
+         (SELECT x FROM c LIMIT 7) AS c3;
+} {000 001 010 011 100 101 110 111}
+do_eqp_test 151 {
+  WITH c(x) AS (VALUES(0),(1))
+  SELECT c1.x||c2.x||c3.x
+    FROM (SELECT x FROM c LIMIT 5) AS c1,
+         (SELECT x FROM c LIMIT 6) AS c2,
+         (SELECT x FROM c LIMIT 7) AS c3;
+} {
+  QUERY PLAN
+  |--CO-ROUTINE c1
+  |  |--MATERIALIZE c
+  |  |  `--SCAN 2 CONSTANT ROWS
+  |  `--SCAN c
+  |--MATERIALIZE c2
+  |  `--SCAN c
+  |--MATERIALIZE c3
+  |  `--SCAN c
+  |--SCAN c1
+  |--SCAN c2
+  `--SCAN c3
+}
+
+do_execsql_test 160 {
+  WITH c(x) AS (VALUES(0),(1))
+  SELECT c2.x + 100*(SELECT sum(x+1) FROM c WHERE c.x<=c2.x)
+    FROM c AS c2 WHERE c2.x<10;
+} {100 301}
+do_eqp_test 161 {
+  WITH c(x) AS (VALUES(0),(1))
+  SELECT c2.x + 100*(SELECT sum(x+1) FROM c WHERE c.x<=c2.x)
+    FROM c AS c2 WHERE c2.x<10;
+} {
+  QUERY PLAN
+  |--MATERIALIZE c
+  |  `--SCAN 2 CONSTANT ROWS
+  |--SCAN c2
+  `--CORRELATED SCALAR SUBQUERY xxxxxx
+     `--SCAN c
+}
+
+do_execsql_test 170 {
+  WITH c(x) AS NOT MATERIALIZED (VALUES(0),(1))
+  SELECT c2.x + 100*(SELECT sum(x+1) FROM c WHERE c.x<=c2.x)
+    FROM c AS c2 WHERE c2.x<10;
+} {100 301}
+do_eqp_test 171 {
+  WITH c(x) AS NOT MATERIALIZED (VALUES(0),(1))
+  SELECT c2.x + 100*(SELECT sum(x+1) FROM c WHERE c.x<=c2.x)
+    FROM c AS c2 WHERE c2.x<10;
+} {
+  QUERY PLAN
+  |--CO-ROUTINE c
+  |  `--SCAN 2 CONSTANT ROWS
+  |--SCAN c2
+  `--CORRELATED SCALAR SUBQUERY xxxxxx
+     |--CO-ROUTINE c
+     |  `--SCAN 2 CONSTANT ROWS
+     `--SCAN c
+}
+
+
+do_execsql_test 200 {
+  CREATE TABLE t1(x);
+  INSERT INTO t1(x) VALUES(4);
+  CREATE VIEW t2(y) AS
+    WITH c(z) AS (VALUES(4),(5),(6))
+    SELECT c1.z+c2.z*100+t1.x*10000
+      FROM t1,
+           (SELECT z FROM c LIMIT 5) AS c1,
+           (SELECT z FROM c LIMIT 5) AS c2;
+  SELECT y FROM t2 ORDER BY y;
+} {40404 40405 40406 40504 40505 40506 40604 40605 40606}
+do_execsql_test 210 {
+  DROP VIEW t2;
+  CREATE VIEW t2(y) AS
+    WITH c(z) AS NOT MATERIALIZED (VALUES(4),(5),(6))
+    SELECT c1.z+c2.z*100+t1.x*10000
+      FROM t1,
+           (SELECT z FROM c LIMIT 5) AS c1,
+           (SELECT z FROM c LIMIT 5) AS c2;
+  SELECT y FROM t2 ORDER BY y;
+} {40404 40405 40406 40504 40505 40506 40604 40605 40606}
+do_eqp_test 211 {
+  SELECT y FROM t2 ORDER BY y;
+} {
+  QUERY PLAN
+  |--CO-ROUTINE c1
+  |  |--CO-ROUTINE c
+  |  |  `--SCAN 3 CONSTANT ROWS
+  |  `--SCAN c
+  |--MATERIALIZE c2
+  |  |--CO-ROUTINE c
+  |  |  `--SCAN 3 CONSTANT ROWS
+  |  `--SCAN c
+  |--SCAN c1
+  |--SCAN c2
+  |--SCAN t1
+  `--USE TEMP B-TREE FOR ORDER BY
+}
+do_execsql_test 220 {
+  DROP VIEW t2;
+  CREATE VIEW t2(y) AS
+    WITH c(z) AS MATERIALIZED (VALUES(4),(5),(6))
+    SELECT c1.z+c2.z*100+t1.x*10000
+      FROM t1,
+           (SELECT z FROM c LIMIT 5) AS c1,
+           (SELECT z FROM c LIMIT 5) AS c2;
+  SELECT y FROM t2 ORDER BY y;
+} {40404 40405 40406 40504 40505 40506 40604 40605 40606}
+
+# 2022-04-22: Do not allow flattening of a MATERIALIZED CTE into
+# an outer query.
+#
+reset_db
+db null -
+do_execsql_test 300 {
+  CREATE TABLE t2(a INT,b INT,d INT); INSERT INTO t2 VALUES(4,5,6),(7,8,9);
+  CREATE TABLE t3(a INT,b INT,e INT); INSERT INTO t3 VALUES(3,3,3),(8,8,8);
+} {}
+do_execsql_test 310 {
+  WITH t23 AS MATERIALIZED (SELECT * FROM t2 FULL JOIN t3 USING(b))
+  SELECT * FROM t23;
+} {
+  4 5 6 - -
+  7 8 9 8 8
+  - 3 - 3 3
+}
+do_eqp_test 311 {
+  WITH t23 AS MATERIALIZED (SELECT * FROM t2 FULL JOIN t3 USING(b))
+  SELECT * FROM t23;
+} {
+  QUERY PLAN
+  |--MATERIALIZE t23
+  |  |--SCAN t2
+  |  |--SCAN t3 LEFT-JOIN
+  |  `--RIGHT-JOIN t3
+  |     `--SCAN t3
+  `--SCAN t23
+}
+do_execsql_test 320 {
+  WITH t23 AS NOT MATERIALIZED (SELECT * FROM t2 FULL JOIN t3 USING(b))
+  SELECT * FROM t23;
+} {
+  4 5 6 - -
+  7 8 9 8 8
+  - 3 - 3 3
+}
+do_eqp_test 321 {
+  WITH t23 AS NOT MATERIALIZED (SELECT * FROM t2 FULL JOIN t3 USING(b))
+  SELECT * FROM t23;
+} {
+  QUERY PLAN
+  |--SCAN t2
+  |--SCAN t3 LEFT-JOIN
+  `--RIGHT-JOIN t3
+     `--SCAN t3
+}
+do_execsql_test 330 {
+  WITH t23 AS (SELECT * FROM t2 FULL JOIN t3 USING(b))
+  SELECT * FROM t23;
+} {
+  4 5 6 - -
+  7 8 9 8 8
+  - 3 - 3 3
+}
+do_eqp_test 331 {
+  WITH t23 AS (SELECT * FROM t2 FULL JOIN t3 USING(b))
+  SELECT * FROM t23;
+} {
+  QUERY PLAN
+  |--SCAN t2
+  |--SCAN t3 LEFT-JOIN
+  `--RIGHT-JOIN t3
+     `--SCAN t3
+}
+
+# 2023-02-01
+# https://sqlite.org/forum/forumpost/1d571c02963355ed
+#
+# Just because a CTE is used more than once, does not mean it should be
+# marked with M10d_Yes and hence prohibited from participating in the
+# query flattening optimization.
+#
+reset_db
+db eval {
+  CREATE TABLE raw(country,date,total,delta, UNIQUE(country,date));
+}
+do_eqp_test 400 {
+  with recursive
+    init(country, date, fin) AS (SELECT country, min(date), max(date) FROM raw WHERE total > 0 GROUP BY country),
+    src(country, date) AS (SELECT raw.country, raw.date
+        FROM raw JOIN init i on raw.country = i.country AND raw.date > i.date
+        ORDER BY raw.country, raw.date),
+    vals(country, date, x, y) AS (SELECT src.country, src.date, julianday(raw.date) - julianday(src.date), log(delta+1)
+        FROM src JOIN raw on raw.country = src.country AND raw.date > date(src.date,'-7 days') AND raw.date <= src.date AND delta >= 0),
+    sums(country, date, x2, x, n, xy, y) AS (SELECT country, date, sum(x*x*1.0), sum(x*1.0), sum(1.0), sum(x*y*1.0), sum(y*1.0) FROM vals GROUP BY 1, 2),
+    mult(country, date, m) AS (SELECT country, date, 1.0/(x2 * n - x * x) FROM sums),
+    inv(country, date, a,b,c,d) AS (SELECT mult.country, mult.date, n * m, -x * m, -x * m, x2 * m
+        FROM mult JOIN sums on sums.country=mult.country AND mult.date=sums.date),
+    fit(country, date, a, b) AS (SELECT inv.country, inv.date, a * xy + b * y, c * xy + d * y
+        FROM inv
+        JOIN mult on mult.country = inv.country AND mult.date = inv.date
+        JOIN sums on sums.country = mult.country AND sums.date = mult.date
+  )
+  SELECT *, nFin/nPrev - 1 AS growth, log(2)/log(nFin/nPrev) AS doubling
+    FROM (SELECT f.*, exp(b) - 1 AS nFin, exp(a* (-1) + b) - 1 AS nPrev
+            FROM fit f JOIN init i on i.country = f.country AND f.date <= date(i.fin,'-3 days'))
+   WHERE nPrev > 0 AND nFin > 0;
+} {
+  QUERY PLAN
+  |--MATERIALIZE sums
+  |  |--MATERIALIZE src
+  |  |  |--MATERIALIZE init
+  |  |  |  `--SCAN raw USING INDEX sqlite_autoindex_raw_1
+  |  |  |--SCAN i
+  |  |  |--SEARCH raw USING COVERING INDEX sqlite_autoindex_raw_1 (country=? AND date>?)
+  |  |  `--USE TEMP B-TREE FOR ORDER BY
+  |  |--SCAN src
+  |  `--SEARCH raw USING INDEX sqlite_autoindex_raw_1 (country=? AND date>? AND date<?)
+  |--SCAN sums
+  |--BLOOM FILTER ON sums (country=? AND date=?)
+  |--SEARCH sums USING AUTOMATIC COVERING INDEX (country=? AND date=?)
+  |--BLOOM FILTER ON sums (country=? AND date=?)
+  |--SEARCH sums USING AUTOMATIC COVERING INDEX (country=? AND date=?)
+  |--BLOOM FILTER ON sums (country=? AND date=?)
+  |--SEARCH sums USING AUTOMATIC COVERING INDEX (country=? AND date=?)
+  |--BLOOM FILTER ON i (country=?)
+  `--SEARCH i USING AUTOMATIC COVERING INDEX (country=?)
+}
+optimization_control db order-by-subquery off
+db cache flush
+do_eqp_test 410 {
+  with recursive
+    init(country, date, fin) AS (SELECT country, min(date), max(date) FROM raw WHERE total > 0 GROUP BY country),
+    src(country, date) AS (SELECT raw.country, raw.date
+        FROM raw JOIN init i on raw.country = i.country AND raw.date > i.date
+        ORDER BY raw.country, raw.date),
+    vals(country, date, x, y) AS (SELECT src.country, src.date, julianday(raw.date) - julianday(src.date), log(delta+1)
+        FROM src JOIN raw on raw.country = src.country AND raw.date > date(src.date,'-7 days') AND raw.date <= src.date AND delta >= 0),
+    sums(country, date, x2, x, n, xy, y) AS (SELECT country, date, sum(x*x*1.0), sum(x*1.0), sum(1.0), sum(x*y*1.0), sum(y*1.0) FROM vals GROUP BY 1, 2),
+    mult(country, date, m) AS (SELECT country, date, 1.0/(x2 * n - x * x) FROM sums),
+    inv(country, date, a,b,c,d) AS (SELECT mult.country, mult.date, n * m, -x * m, -x * m, x2 * m
+        FROM mult JOIN sums on sums.country=mult.country AND mult.date=sums.date),
+    fit(country, date, a, b) AS (SELECT inv.country, inv.date, a * xy + b * y, c * xy + d * y
+        FROM inv
+        JOIN mult on mult.country = inv.country AND mult.date = inv.date
+        JOIN sums on sums.country = mult.country AND sums.date = mult.date
+  )
+  SELECT *, nFin/nPrev - 1 AS growth, log(2)/log(nFin/nPrev) AS doubling
+    FROM (SELECT f.*, exp(b) - 1 AS nFin, exp(a* (-1) + b) - 1 AS nPrev
+            FROM fit f JOIN init i on i.country = f.country AND f.date <= date(i.fin,'-3 days'))
+   WHERE nPrev > 0 AND nFin > 0;
+} {
+  QUERY PLAN
+  |--MATERIALIZE sums
+  |  |--MATERIALIZE src
+  |  |  |--MATERIALIZE init
+  |  |  |  `--SCAN raw USING INDEX sqlite_autoindex_raw_1
+  |  |  |--SCAN i
+  |  |  |--SEARCH raw USING COVERING INDEX sqlite_autoindex_raw_1 (country=? AND date>?)
+  |  |  `--USE TEMP B-TREE FOR ORDER BY
+  |  |--SCAN src
+  |  |--SEARCH raw USING INDEX sqlite_autoindex_raw_1 (country=? AND date>? AND date<?)
+  |  `--USE TEMP B-TREE FOR GROUP BY
+  |--SCAN sums
+  |--BLOOM FILTER ON sums (country=? AND date=?)
+  |--SEARCH sums USING AUTOMATIC COVERING INDEX (country=? AND date=?)
+  |--BLOOM FILTER ON sums (country=? AND date=?)
+  |--SEARCH sums USING AUTOMATIC COVERING INDEX (country=? AND date=?)
+  |--BLOOM FILTER ON sums (country=? AND date=?)
+  |--SEARCH sums USING AUTOMATIC COVERING INDEX (country=? AND date=?)
+  |--BLOOM FILTER ON i (country=?)
+  `--SEARCH i USING AUTOMATIC COVERING INDEX (country=?)
+}
+
+
+finish_test
diff --git a/test/withM.test b/test/withM.test
new file mode 100644
index 0000000000000000000000000000000000000000..78b757f4226b458946bcc11b0c00c854e0d9e210
--- /dev/null
+++ b/test/withM.test
@@ -0,0 +1,74 @@
+# 2014 January 11
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the WITH clause.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+set ::testprefix withM
+
+ifcapable {!cte} {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(x INTEGER, y INTEGER);
+  INSERT INTO t1 VALUES(123, 456);
+}
+
+do_faultsim_test withM-1.1 -prep {
+  sqlite3 db test.db
+} -body {
+  execsql { 
+    WITH tmp AS ( SELECT * FROM t1 )
+    SELECT * FROM tmp;
+  }
+} -test {
+  faultsim_test_result {0 {123 456}}
+  db close
+}
+
+do_faultsim_test withM-1.2 -prep {
+  sqlite3 db test.db
+} -body {
+  execsql { 
+    WITH w1 AS ( SELECT * FROM t1 ),
+         w2 AS ( 
+           WITH w3 AS ( SELECT * FROM w1 )
+           SELECT * FROM w3
+         )
+    SELECT * FROM w2;
+  }
+} -test {
+  faultsim_test_result {0 {123 456}}
+  db close
+}
+
+do_faultsim_test withM-1.3 -prep {
+  sqlite3 db test.db
+} -body {
+  execsql { 
+    WITH w1(a,b) AS ( 
+      SELECT 1, 1
+      UNION ALL
+      SELECT a+1, b + 2*a + 1 FROM w1
+    )
+    SELECT * FROM w1 LIMIT 5;
+  }
+} -test {
+  faultsim_test_result {0 {1 1 2 4 3 9 4 16 5 25}}
+  db close
+}
+
+finish_test
diff --git a/test/without_rowid1.test b/test/without_rowid1.test
new file mode 100644
index 0000000000000000000000000000000000000000..3c33f733a13fdede7fbf8d6ebe0b84ad47122f22
--- /dev/null
+++ b/test/without_rowid1.test
@@ -0,0 +1,490 @@
+# 2013-10-30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing WITHOUT ROWID tables.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix without_rowid1
+
+proc do_execsql_test_if_vtab {tn sql {res {}}} {
+  ifcapable vtab { uplevel [list do_execsql_test $tn $sql $res] }
+}
+
+# Create and query a WITHOUT ROWID table.
+#
+do_execsql_test without_rowid1-1.0 {
+  CREATE TABLE t1(a,b,c,d, PRIMARY KEY(c,a)) WITHOUT ROWID;
+  CREATE INDEX t1bd ON t1(b, d);
+  INSERT INTO t1 VALUES('journal','sherman','ammonia','helena');
+  INSERT INTO t1 VALUES('dynamic','juliet','flipper','command');
+  INSERT INTO t1 VALUES('journal','sherman','gamma','patriot');
+  INSERT INTO t1 VALUES('arctic','sleep','ammonia','helena');
+  SELECT *, '|' FROM t1 ORDER BY c, a;
+} {arctic sleep ammonia helena | journal sherman ammonia helena | dynamic juliet flipper command | journal sherman gamma patriot |}
+
+integrity_check without_rowid1-1.0ic
+
+do_execsql_test_if_vtab without_rowid1-1.0ixi {
+  SELECT name, key FROM pragma_index_xinfo('t1');
+} {c 1 a 1 b 0 d 0}
+do_execsql_test_if_vtab without_rowid1-1.0tl {
+  SELECT wr FROM pragma_table_list('t1');
+} {1}
+
+do_execsql_test without_rowid1-1.1 {
+  SELECT *, '|' FROM t1 ORDER BY +c, a;
+} {arctic sleep ammonia helena | journal sherman ammonia helena | dynamic juliet flipper command | journal sherman gamma patriot |}
+
+do_execsql_test without_rowid1-1.2 {
+  SELECT *, '|' FROM t1 ORDER BY c DESC, a DESC;
+} {journal sherman gamma patriot | dynamic juliet flipper command | journal sherman ammonia helena | arctic sleep ammonia helena |}
+
+do_execsql_test without_rowid1-1.11 {
+  SELECT *, '|' FROM t1 ORDER BY b, d;
+} {dynamic juliet flipper command | journal sherman ammonia helena | journal sherman gamma patriot | arctic sleep ammonia helena |}
+
+do_execsql_test without_rowid1-1.12 {
+  SELECT *, '|' FROM t1 ORDER BY +b, d;
+} {dynamic juliet flipper command | journal sherman ammonia helena | journal sherman gamma patriot | arctic sleep ammonia helena |}
+
+# Trying to insert a duplicate PRIMARY KEY fails.
+#
+do_test without_rowid1-1.21 {
+  catchsql {
+    INSERT INTO t1 VALUES('dynamic','phone','flipper','harvard');
+  }
+} {1 {UNIQUE constraint failed: t1.c, t1.a}}
+
+# REPLACE INTO works, however.
+#
+do_execsql_test without_rowid1-1.22 {
+  REPLACE INTO t1 VALUES('dynamic','phone','flipper','harvard');
+  SELECT *, '|' FROM t1 ORDER BY c, a;
+} {arctic sleep ammonia helena | journal sherman ammonia helena | dynamic phone flipper harvard | journal sherman gamma patriot |}
+
+do_execsql_test without_rowid1-1.23 {
+  SELECT *, '|' FROM t1 ORDER BY b, d;
+} {dynamic phone flipper harvard | journal sherman ammonia helena | journal sherman gamma patriot | arctic sleep ammonia helena |}
+
+# UPDATE statements.
+#
+do_execsql_test without_rowid1-1.31 {
+  UPDATE t1 SET d=3.1415926 WHERE a='journal';
+  SELECT *, '|' FROM t1 ORDER BY c, a;
+} {arctic sleep ammonia helena | journal sherman ammonia 3.1415926 | dynamic phone flipper harvard | journal sherman gamma 3.1415926 |}
+do_execsql_test without_rowid1-1.32 {
+  SELECT *, '|' FROM t1 ORDER BY b, d;
+} {dynamic phone flipper harvard | journal sherman ammonia 3.1415926 | journal sherman gamma 3.1415926 | arctic sleep ammonia helena |}
+
+do_execsql_test without_rowid1-1.35 {
+  UPDATE t1 SET a=1250 WHERE b='phone';
+  SELECT *, '|' FROM t1 ORDER BY c, a;
+} {arctic sleep ammonia helena | journal sherman ammonia 3.1415926 | 1250 phone flipper harvard | journal sherman gamma 3.1415926 |}
+integrity_check without_rowid1-1.36
+
+do_execsql_test without_rowid1-1.37 {
+  SELECT *, '|' FROM t1 ORDER BY b, d;
+} {1250 phone flipper harvard | journal sherman ammonia 3.1415926 | journal sherman gamma 3.1415926 | arctic sleep ammonia helena |}
+
+do_execsql_test without_rowid1-1.40 {
+  VACUUM;
+  SELECT *, '|' FROM t1 ORDER BY b, d;
+} {1250 phone flipper harvard | journal sherman ammonia 3.1415926 | journal sherman gamma 3.1415926 | arctic sleep ammonia helena |}
+integrity_check without_rowid1-1.41
+
+# Verify that ANALYZE works
+#
+do_execsql_test without_rowid1-1.50 {
+  ANALYZE;
+  SELECT * FROM sqlite_stat1 ORDER BY idx;
+} {t1 t1 {4 2 1} t1 t1bd {4 2 2}}
+ifcapable stat4 {
+  do_execsql_test without_rowid1-1.52 {
+    SELECT DISTINCT tbl, idx FROM sqlite_stat4 ORDER BY idx;
+  } {t1 t1 t1 t1bd}
+}
+
+#----------
+
+do_execsql_test 2.1.1 {
+  CREATE TABLE t4 (a COLLATE nocase PRIMARY KEY, b) WITHOUT ROWID;
+  INSERT INTO t4 VALUES('abc', 'def');
+  SELECT * FROM t4;
+} {abc def}
+do_execsql_test 2.1.2 {
+  UPDATE t4 SET a = 'ABC';
+  SELECT * FROM t4;
+} {ABC def}
+do_execsql_test_if_vtab 2.1.3 {
+  SELECT name, coll, key FROM pragma_index_xinfo('t4');
+} {a nocase 1 b BINARY 0}
+
+do_execsql_test 2.2.1 {
+  DROP TABLE t4;
+  CREATE TABLE t4 (b, a COLLATE nocase PRIMARY KEY) WITHOUT ROWID;
+  INSERT INTO t4(a, b) VALUES('abc', 'def');
+  SELECT * FROM t4;
+} {def abc}
+
+do_execsql_test 2.2.2 {
+  UPDATE t4 SET a = 'ABC', b = 'xyz';
+  SELECT * FROM t4;
+} {xyz ABC}
+
+do_execsql_test_if_vtab 2.2.3 {
+  SELECT name, coll, key FROM pragma_index_xinfo('t4');
+} {a nocase 1 b BINARY 0}
+
+
+do_execsql_test 2.3.1 {
+  CREATE TABLE t5 (a, b, PRIMARY KEY(b, a)) WITHOUT ROWID;
+  INSERT INTO t5(a, b) VALUES('abc', 'def');
+  UPDATE t5 SET a='abc', b='def';
+} {}
+
+do_execsql_test_if_vtab 2.3.2 {
+  SELECT name, coll, key FROM pragma_index_xinfo('t5');
+} {b BINARY 1 a BINARY 1}
+
+
+do_execsql_test 2.4.1 {
+  CREATE TABLE t6 (
+    a COLLATE nocase, b, c UNIQUE, PRIMARY KEY(b, a)
+  ) WITHOUT ROWID;
+
+  INSERT INTO t6(a, b, c) VALUES('abc', 'def', 'ghi');
+  UPDATE t6 SET a='ABC', c='ghi';
+} {}
+
+do_execsql_test 2.4.2 {
+  SELECT * FROM t6 ORDER BY b, a;
+  SELECT * FROM t6 ORDER BY c;
+} {ABC def ghi ABC def ghi}
+
+do_execsql_test_if_vtab 2.4.3 {
+  SELECT name, coll, key FROM pragma_index_xinfo('t6');
+} {b BINARY 1 a nocase 1 c BINARY 0}
+
+
+#-------------------------------------------------------------------------
+# Unless the destination table is completely empty, the xfer optimization 
+# is disabled for WITHOUT ROWID tables. The following tests check for
+# some problems that might occur if this were not the case.
+#
+reset_db
+do_execsql_test 3.1.1 {
+  CREATE TABLE t1(a, b, PRIMARY KEY(a)) WITHOUT ROWID;
+  CREATE UNIQUE INDEX i1 ON t1(b);
+
+  CREATE TABLE t2(a, b, PRIMARY KEY(a)) WITHOUT ROWID;
+  CREATE UNIQUE INDEX i2 ON t2(b);
+
+  INSERT INTO t1 VALUES('one', 'two');
+  INSERT INTO t2 VALUES('three', 'two');
+}
+
+do_execsql_test 3.1.2 {
+  INSERT OR REPLACE INTO t1 SELECT * FROM t2;
+  SELECT * FROM t1;
+} {three two}
+
+do_execsql_test 3.1.3 {
+  DELETE FROM t1;
+  INSERT INTO t1 SELECT * FROM t2;
+  SELECT * FROM t1;
+} {three two}
+
+do_catchsql_test 3.1.4 {
+  INSERT INTO t2 VALUES('four', 'four');
+  INSERT INTO t2 VALUES('six', 'two');
+  INSERT INTO t1 SELECT * FROM t2;
+} {1 {UNIQUE constraint failed: t2.b}}
+
+do_execsql_test 3.1.5 {
+  CREATE TABLE t3(a PRIMARY KEY);
+  CREATE TABLE t4(a PRIMARY KEY);
+
+  INSERT INTO t4 VALUES('i');
+  INSERT INTO t4 VALUES('ii');
+  INSERT INTO t4 VALUES('iii');
+
+  INSERT INTO t3 SELECT * FROM t4;
+  SELECT * FROM t3;
+} {i ii iii}
+
+############################################################################
+# Ticket [c34d0557f740c450709d6e33df72d4f3f651a3cc]
+# Name resolution issue with WITHOUT ROWID
+#
+do_execsql_test 4.1 {
+  CREATE TABLE t41(a PRIMARY KEY) WITHOUT ROWID;
+  INSERT INTO t41 VALUES('abc');
+  CREATE TABLE t42(x);
+  INSERT INTO t42 VALUES('xyz');
+  SELECT t42.rowid FROM t41, t42;
+} {1}
+do_execsql_test 4.2 {
+  SELECT t42.rowid FROM t42, t41;
+} {1}
+
+
+#--------------------------------------------------------------------------
+# The following tests verify that the trailing PK fields added to each
+# entry in an index on a WITHOUT ROWID table are used correctly.
+#
+do_execsql_test 5.0 {
+  CREATE TABLE t45(a PRIMARY KEY, b, c) WITHOUT ROWID;
+  CREATE INDEX i45 ON t45(b);
+
+  INSERT INTO t45 VALUES(2, 'one', 'x');
+  INSERT INTO t45 VALUES(4, 'one', 'x');
+  INSERT INTO t45 VALUES(6, 'one', 'x');
+  INSERT INTO t45 VALUES(8, 'one', 'x');
+  INSERT INTO t45 VALUES(10, 'one', 'x');
+
+  INSERT INTO t45 VALUES(1, 'two', 'x');
+  INSERT INTO t45 VALUES(3, 'two', 'x');
+  INSERT INTO t45 VALUES(5, 'two', 'x');
+  INSERT INTO t45 VALUES(7, 'two', 'x');
+  INSERT INTO t45 VALUES(9, 'two', 'x');
+}
+
+do_eqp_test 5.1 {
+  SELECT * FROM t45 WHERE b=? AND a>?
+} {USING INDEX i45 (b=? AND a>?)}
+
+do_execsql_test 5.2 {
+  SELECT * FROM t45 WHERE b='two' AND a>4
+} {5 two x 7 two x 9 two x}
+
+do_execsql_test 5.3 {
+  SELECT * FROM t45 WHERE b='one' AND a<8
+} { 2 one x 4 one x 6 one x }
+
+do_execsql_test 5.4 {
+  CREATE TABLE t46(a, b, c, d, PRIMARY KEY(a, b)) WITHOUT ROWID;
+  WITH r(x) AS (
+    SELECT 1 UNION ALL SELECT x+1 FROM r WHERE x<100
+  )
+  INSERT INTO t46 SELECT x / 20, x % 20, x % 10, x FROM r;
+}
+
+set queries {
+  1    2    "c = 5 AND a = 1"          {i46 (c=? AND a=?)}
+  2    6    "c = 4 AND a < 3"          {i46 (c=? AND a<?)}
+  3    4    "c = 2 AND a >= 3"         {i46 (c=? AND a>?)}
+  4    1    "c = 2 AND a = 1 AND b<10" {i46 (c=? AND a=? AND b<?)}
+  5    1    "c = 0 AND a = 0 AND b>5"  {i46 (c=? AND a=? AND b>?)}
+}
+
+foreach {tn cnt where eqp} $queries {
+  do_execsql_test 5.5.$tn.1 "SELECT count(*) FROM t46 WHERE $where" $cnt
+}
+
+do_execsql_test 5.6 {
+  CREATE INDEX i46 ON t46(c);
+}
+
+foreach {tn cnt where eqp} $queries {
+  do_execsql_test 5.7.$tn.1 "SELECT count(*) FROM t46 WHERE $where" $cnt
+  do_eqp_test 5.7.$tn.2  "SELECT count(*) FROM t46 WHERE $where" $eqp
+}
+
+#-------------------------------------------------------------------------
+# Check that redundant UNIQUE constraints do not cause a problem.
+#
+do_execsql_test 6.0 {
+  CREATE TABLE t47(a, b UNIQUE PRIMARY KEY) WITHOUT ROWID;
+  CREATE INDEX i47 ON t47(a);
+  INSERT INTO t47 VALUES(1, 2);
+  INSERT INTO t47 VALUES(2, 4);
+  INSERT INTO t47 VALUES(3, 6);
+  INSERT INTO t47 VALUES(4, 8);
+
+  VACUUM;
+  PRAGMA integrity_check;
+  SELECT name FROM sqlite_master WHERE tbl_name = 't47';
+} {ok t47 i47}
+
+do_execsql_test 6.1 {
+  CREATE TABLE t48(
+    a UNIQUE UNIQUE, 
+    b UNIQUE, 
+    PRIMARY KEY(a), 
+    UNIQUE(a)
+  ) WITHOUT ROWID;
+  INSERT INTO t48 VALUES('a', 'b'), ('c', 'd'), ('e', 'f');
+  VACUUM;
+  PRAGMA integrity_check;
+  SELECT name FROM sqlite_master WHERE tbl_name = 't48';
+} {
+  ok  t48   sqlite_autoindex_t48_2
+}
+
+# 2015-05-28: CHECK constraints can refer to the rowid in a
+# rowid table, but not in a WITHOUT ROWID table.
+#
+do_execsql_test 7.1 {
+  CREATE TABLE t70a(
+     a INT CHECK( rowid!=33 ),
+     b TEXT PRIMARY KEY
+  );
+  INSERT INTO t70a(a,b) VALUES(99,'hello');
+} {}
+do_catchsql_test 7.2 {
+  INSERT INTO t70a(rowid,a,b) VALUES(33,99,'xyzzy');
+} {1 {CHECK constraint failed: rowid!=33}}
+do_catchsql_test 7.3 {
+  CREATE TABLE t70b(
+     a INT CHECK( rowid!=33 ),
+     b TEXT PRIMARY KEY
+  ) WITHOUT ROWID;
+} {1 {no such column: rowid}}
+
+# 2017-07-30: OSSFuzz discovered that an extra entry was being
+# added in the sqlite_master table for an "INTEGER PRIMARY KEY UNIQUE"
+# WITHOUT ROWID table.  Make sure this has now been fixed.
+#
+db close
+sqlite3 db :memory:
+do_execsql_test 8.1 {
+  CREATE TABLE t1(x INTEGER PRIMARY KEY UNIQUE, b) WITHOUT ROWID;
+  CREATE INDEX t1x ON t1(x);
+  INSERT INTO t1(x,b) VALUES('funny','buffalo');
+  SELECT type, name, '|' FROM sqlite_master;
+} {table t1 | index t1x |}
+
+# 2018-04-05: OSSFuzz found that the following was accessing an 
+# unintialized memory cell. Which was not actually causing a 
+# malfunction, but does cause an assert() to fail.
+#
+do_execsql_test 9.0 {
+  CREATE TABLE t2(b, c, PRIMARY KEY(b,c)) WITHOUT ROWID;
+  CREATE UNIQUE INDEX t2b ON t2(b);
+  UPDATE t2 SET b=1 WHERE b='';
+}
+
+do_execsql_test 10.1 {
+  DELETE FROM t2 WHERE b=1
+}
+
+#-------------------------------------------------------------------------
+# UNIQUE constraint violation in an UPDATE with a multi-column PK.
+#
+reset_db
+do_execsql_test 10.0 {
+  CREATE TABLE t1(a, b, c UNIQUE, PRIMARY KEY(a, b)) WITHOUT ROWID;
+  INSERT INTO t1 VALUES('a', 'a', 1);
+  INSERT INTO t1 VALUES('a', 'b', 2);
+  INSERT INTO t1 VALUES('b', 'a', 3);
+  INSERT INTO t1 VALUES('b', 'b', 4);
+}
+
+do_catchsql_test 10.1 {
+  UPDATE t1 SET c=1 WHERE (a, b) = ('a', 'a');
+} {0 {}}
+do_catchsql_test 10.2 {
+  UPDATE t1 SET c=1 WHERE (a, b) = ('a', 'b');
+} {1 {UNIQUE constraint failed: t1.c}}
+do_catchsql_test 10.3 {
+  UPDATE t1 SET c=1 WHERE (a, b) = ('b', 'a');
+} {1 {UNIQUE constraint failed: t1.c}}
+do_catchsql_test 10.4 {
+  UPDATE t1 SET c=1 WHERE (a, b) = ('b', 'b');
+} {1 {UNIQUE constraint failed: t1.c}}
+do_catchsql_test 10.5 {
+  UPDATE t1 SET c=1 WHERE (a, b) = ('c', 'c');
+} {0 {}}
+
+do_execsql_test 10.6 {
+  CREATE TRIGGER t1_tr BEFORE UPDATE ON t1 BEGIN
+    DELETE FROM t1 WHERE a = new.a;
+  END;
+  UPDATE t1 SET c = c+1 WHERE a = 'a';
+  SELECT * FROM t1;
+} {b a 3  b b 4}
+
+# 2019-04-29 ticket https://www.sqlite.org/src/info/3182d3879020ef3
+do_execsql_test 11.1 {
+  CREATE TABLE t11(a TEXT PRIMARY KEY, b INT) WITHOUT ROWID;
+  CREATE INDEX t11a ON t11(a COLLATE NOCASE);
+  INSERT INTO t11(a,b) VALUES ('A',1),('a',2);
+  PRAGMA integrity_check;
+  SELECT a FROM t11 ORDER BY a COLLATE binary;
+} {ok A a}
+
+# 2019-05-13 ticket https://www.sqlite.org/src/info/bba7b69f9849b5b
+do_execsql_test 12.1 {
+  DROP TABLE IF EXISTS t0;
+  CREATE TABLE t0 (c0 INTEGER PRIMARY KEY DESC, c1 UNIQUE DEFAULT NULL) WITHOUT ROWID;
+  INSERT INTO t0(c0) VALUES (1), (2), (3), (4), (5);
+  REINDEX;
+  PRAGMA integrity_check;
+} {ok}
+
+# 2019-11-07 ticket https://www.sqlite.org/src/info/302027baf1374498
+# The xferCompatibleIndex() function confuses a PRIMARY KEY index
+# with a UNIQUE index.
+#
+do_execsql_test 13.10 {
+  DROP TABLE IF EXISTS t0;
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t0(
+    c0,
+    c1 UNIQUE,
+    PRIMARY KEY(c1, c1)
+  ) WITHOUT ROWID;
+  INSERT INTO t0(c0,c1) VALUES('abc','xyz');
+  CREATE TABLE t1(
+    c0,
+    c1 UNIQUE,
+    PRIMARY KEY(c1, c1)
+  ) WITHOUT ROWID;
+  INSERT INTO t1 SELECT * FROM t0;
+  PRAGMA integrity_check;
+  SELECT * FROM t0, t1;
+} {ok abc xyz abc xyz}
+
+# 2021-05-13 https://sqlite.org/forum/forumpost/6c8960f545
+reset_db
+ifcapable altertable {
+  do_execsql_test 14.1 {
+    CREATE TABLE t1(a INT PRIMARY KEY) WITHOUT ROWID;
+    INSERT INTO t1(a) VALUES(10);
+    ALTER TABLE t1 ADD COLUMN b INT;
+    SELECT * FROM t1 WHERE a=20 OR (a=10 AND b=10);
+  } {}
+  do_execsql_test 14.2 {
+    CREATE TABLE dual AS SELECT 'X' AS dummy;
+    EXPLAIN QUERY PLAN SELECT * FROM dual, t1 WHERE a=10 AND b=10;
+  } {~/b=/}
+}
+
+# 2022-01-01 https://sqlite.org/forum/forumpost/b03d86f951 PoC #1
+# Omit an assert() from 2013 that no longer serves any purpose and
+# is no longer always true.
+#
+ifcapable altertable {
+  reset_db
+  do_execsql_test 15.1 {
+    PRAGMA writable_schema=ON;
+    CREATE TABLE sqlite_sequence (name PRIMARY KEY) WITHOUT ROWID;
+    PRAGMA writable_schema=OFF;
+    CREATE TABLE c1(x);
+    INSERT INTO sqlite_sequence(name) VALUES('c0'),('c1'),('c2');
+    ALTER TABLE c1 RENAME TO a;
+    SELECT name FROM sqlite_sequence ORDER BY +name;
+  } {a c0 c2}
+}
+finish_test
diff --git a/test/without_rowid2.test b/test/without_rowid2.test
new file mode 100644
index 0000000000000000000000000000000000000000..5ba1a23bef775b027681df0dbfb5af6de221d8ad
--- /dev/null
+++ b/test/without_rowid2.test
@@ -0,0 +1,125 @@
+# 2013-11-02
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing WITHOUT ROWID tables, and especially
+# FOREIGN KEY constraints.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable {!foreignkey} {
+  finish_test
+  return
+}
+
+# Create a table and some data to work with.
+#
+do_test without_rowid2-1.0 {
+  execsql {
+    CREATE TABLE t1(
+      a INT PRIMARY KEY,
+      b INT
+           REFERENCES t1 ON DELETE CASCADE
+           REFERENCES t2,
+      c TEXT,
+      FOREIGN KEY (b,c) REFERENCES t2(x,y) ON UPDATE CASCADE
+    ) WITHOUT rowid;
+  }
+} {}
+do_test without_rowid2-1.1 {
+  execsql {
+    CREATE TABLE t2(
+      x INT PRIMARY KEY,
+      y TEXT
+    ) WITHOUT rowid;
+  }
+} {}
+do_test without_rowid2-1.2 {
+  execsql {
+    CREATE TABLE t3(
+      a INT REFERENCES t2,
+      b INT REFERENCES t1,
+      FOREIGN KEY (a,b) REFERENCES t2(x,y)
+    );
+  }
+} {}
+
+do_test without_rowid2-2.1 {
+  execsql {
+    CREATE TABLE t4(a int primary key) WITHOUT rowid;
+    CREATE TABLE t5(x references t4);
+    CREATE TABLE t6(x references t4);
+    CREATE TABLE t7(x references t4);
+    CREATE TABLE t8(x references t4);
+    CREATE TABLE t9(x references t4);
+    CREATE TABLE t10(x references t4);
+    DROP TABLE t7;
+    DROP TABLE t9;
+    DROP TABLE t5;
+    DROP TABLE t8;
+    DROP TABLE t6;
+    DROP TABLE t10;
+  }
+} {}
+
+do_test without_rowid2-3.1 {
+  execsql {
+    CREATE TABLE t5(a PRIMARY KEY, b, c) WITHOUT rowid;
+    CREATE TABLE t6(
+      d REFERENCES t5,
+      e REFERENCES t5(c)
+    );
+    PRAGMA foreign_key_list(t6);
+  }
+} [concat                                         \
+  {0 0 t5 e c {NO ACTION} {NO ACTION} NONE}       \
+  {1 0 t5 d {} {NO ACTION} {NO ACTION} NONE}      \
+]
+do_test without_rowid2-3.2 {
+  execsql {
+    CREATE TABLE t7(d, e, f,
+      FOREIGN KEY (d, e) REFERENCES t5(a, b)
+    );
+    PRAGMA foreign_key_list(t7);
+  }
+} [concat                                   \
+  {0 0 t5 d a {NO ACTION} {NO ACTION} NONE} \
+  {0 1 t5 e b {NO ACTION} {NO ACTION} NONE} \
+]
+do_test without_rowid2-3.3 {
+  execsql {
+    CREATE TABLE t8(d, e, f,
+      FOREIGN KEY (d, e) REFERENCES t5 ON DELETE CASCADE ON UPDATE SET NULL
+    );
+    PRAGMA foreign_key_list(t8);
+  }
+} [concat                        \
+  {0 0 t5 d {} {SET NULL} CASCADE NONE} \
+  {0 1 t5 e {} {SET NULL} CASCADE NONE} \
+]
+do_test without_rowid2-3.4 {
+  execsql {
+    CREATE TABLE t9(d, e, f,
+      FOREIGN KEY (d, e) REFERENCES t5 ON DELETE CASCADE ON UPDATE SET DEFAULT
+    );
+    PRAGMA foreign_key_list(t9);
+  }
+} [concat                        \
+  {0 0 t5 d {} {SET DEFAULT} CASCADE NONE} \
+  {0 1 t5 e {} {SET DEFAULT} CASCADE NONE} \
+]
+do_test without_rowid2-3.5 {
+  sqlite3_db_status db DBSTATUS_DEFERRED_FKS 0
+} {0 0 0}
+
+finish_test
diff --git a/test/without_rowid3.test b/test/without_rowid3.test
new file mode 100644
index 0000000000000000000000000000000000000000..f7687455ec543d22818e19aaac433d5b18dffa8a
--- /dev/null
+++ b/test/without_rowid3.test
@@ -0,0 +1,2111 @@
+# 2013-11-02
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests for foreign keys on WITHOUT ROWID
+# tables.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable {!foreignkey||!trigger} {
+  finish_test
+  return
+}
+
+#-------------------------------------------------------------------------
+# Test structure:
+#
+# without_rowid3-1.*: Simple tests to check that immediate and deferred foreign key 
+#            constraints work when not inside a transaction.
+#            
+# without_rowid3-2.*: Tests to verify that deferred foreign keys work inside
+#            explicit transactions (i.e that processing really is deferred).
+#
+# without_rowid3-3.*: Tests that a statement transaction is rolled back if an
+#            immediate foreign key constraint is violated.
+#
+# without_rowid3-4.*: Test that FK actions may recurse even when recursive triggers
+#            are disabled.
+#
+# without_rowid3-5.*: Check that if foreign-keys are enabled, it is not possible
+#            to write to an FK column using the incremental blob API.
+#
+# without_rowid3-6.*: Test that FK processing is automatically disabled when 
+#            running VACUUM.
+#
+# without_rowid3-7.*: Test using an IPK as the key in the child (referencing) table.
+#
+# without_rowid3-8.*: Test that enabling/disabling foreign key support while a 
+#            transaction is active is not possible.
+#
+# without_rowid3-9.*: Test SET DEFAULT actions.
+#
+# without_rowid3-10.*: Test errors.
+#
+# without_rowid3-11.*: Test CASCADE actions.
+#
+# without_rowid3-12.*: Test RESTRICT actions.
+#
+# without_rowid3-13.*: Test that FK processing is performed when a row is REPLACED by
+#             an UPDATE or INSERT statement.
+#
+# without_rowid3-14.*: Test the ALTER TABLE and DROP TABLE commands.
+#
+# without_rowid3-15.*: Test that if there are no (known) outstanding foreign key 
+#             constraint violations in the database, inserting into a parent
+#             table or deleting from a child table does not cause SQLite
+#             to check if this has repaired an outstanding violation.
+#
+# without_rowid3-16.*: Test that rows that refer to themselves may be inserted, 
+#             updated and deleted.
+#
+# without_rowid3-17.*: Test that the "count_changes" pragma does not interfere with
+#             FK constraint processing.
+# 
+# without_rowid3-18.*: Test that the authorization callback is invoked when processing
+#             FK constraints.
+#
+# without_rowid3-20.*: Test that ON CONFLICT clauses specified as part of statements
+#             do not affect the operation of FK constraints.
+#
+# without_rowid3-genfkey.*: Tests that were used with the shell tool .genfkey
+#            command. Recycled to test the built-in implementation.
+#
+# without_rowid3-dd08e5.*:  Tests to verify that ticket dd08e5a988d00decc4a543daa8d
+#                  has been fixed.
+#
+
+
+execsql { PRAGMA foreign_keys = on }
+
+set FkeySimpleSchema {
+  PRAGMA foreign_keys = on;
+  CREATE TABLE t1(a PRIMARY KEY, b) WITHOUT rowid;
+  CREATE TABLE t2(c REFERENCES t1(a) /D/ , d);
+
+  CREATE TABLE t3(a PRIMARY KEY, b) WITHOUT rowid;
+  CREATE TABLE t4(c REFERENCES t3 /D/, d);
+
+  CREATE TABLE t7(a, b INT PRIMARY KEY) WITHOUT rowid;
+  CREATE TABLE t8(c REFERENCES t7 /D/, d);
+
+  CREATE TABLE t9(a REFERENCES nosuchtable, b);
+  CREATE TABLE t10(a REFERENCES t9(c) /D/, b);
+}
+
+
+set FkeySimpleTests {
+  1.1  "INSERT INTO t2 VALUES(1, 3)"      {1 {FOREIGN KEY constraint failed}}
+  1.2  "INSERT INTO t1 VALUES(1, 2)"      {0 {}}
+  1.3  "INSERT INTO t2 VALUES(1, 3)"      {0 {}}
+  1.4  "INSERT INTO t2 VALUES(2, 4)"      {1 {FOREIGN KEY constraint failed}}
+  1.5  "INSERT INTO t2 VALUES(NULL, 4)"   {0 {}}
+  1.6  "UPDATE t2 SET c=2 WHERE d=4"      {1 {FOREIGN KEY constraint failed}}
+  1.7  "UPDATE t2 SET c=1 WHERE d=4"      {0 {}}
+  1.9  "UPDATE t2 SET c=1 WHERE d=4"      {0 {}}
+  1.10 "UPDATE t2 SET c=NULL WHERE d=4"   {0 {}}
+  1.11 "DELETE FROM t1 WHERE a=1"         {1 {FOREIGN KEY constraint failed}}
+  1.12 "UPDATE t1 SET a = 2"              {1 {FOREIGN KEY constraint failed}}
+  1.13 "UPDATE t1 SET a = 1"              {0 {}}
+
+  2.1  "INSERT INTO t4 VALUES(1, 3)"      {1 {FOREIGN KEY constraint failed}}
+  2.2  "INSERT INTO t3 VALUES(1, 2)"      {0 {}}
+  2.3  "INSERT INTO t4 VALUES(1, 3)"      {0 {}}
+
+  4.1  "INSERT INTO t8 VALUES(1, 3)"      {1 {FOREIGN KEY constraint failed}}
+  4.2  "INSERT INTO t7 VALUES(2, 1)"      {0 {}}
+  4.3  "INSERT INTO t8 VALUES(1, 3)"      {0 {}}
+  4.4  "INSERT INTO t8 VALUES(2, 4)"      {1 {FOREIGN KEY constraint failed}}
+  4.5  "INSERT INTO t8 VALUES(NULL, 4)"   {0 {}}
+  4.6  "UPDATE t8 SET c=2 WHERE d=4"      {1 {FOREIGN KEY constraint failed}}
+  4.7  "UPDATE t8 SET c=1 WHERE d=4"      {0 {}}
+  4.9  "UPDATE t8 SET c=1 WHERE d=4"      {0 {}}
+  4.10 "UPDATE t8 SET c=NULL WHERE d=4"   {0 {}}
+  4.11 "DELETE FROM t7 WHERE b=1"         {1 {FOREIGN KEY constraint failed}}
+  4.12 "UPDATE t7 SET b = 2"              {1 {FOREIGN KEY constraint failed}}
+  4.13 "UPDATE t7 SET b = 1"              {0 {}}
+  4.14 "INSERT INTO t8 VALUES('a', 'b')"  {1 {FOREIGN KEY constraint failed}}
+  4.15 "UPDATE t7 SET b = 5"              {1 {FOREIGN KEY constraint failed}}
+  4.17 "UPDATE t7 SET a = 10"             {0 {}}
+
+  5.1  "INSERT INTO t9 VALUES(1, 3)"      {1 {no such table: main.nosuchtable}}
+  5.2  "INSERT INTO t10 VALUES(1, 3)"  
+                            {1 {foreign key mismatch - "t10" referencing "t9"}}
+}
+
+do_test without_rowid3-1.1.0 {
+  execsql [string map {/D/ {}} $FkeySimpleSchema]
+} {}
+foreach {tn zSql res} $FkeySimpleTests {
+  do_test without_rowid3-1.1.$tn.1 { catchsql $zSql } $res
+  do_test without_rowid3-1.1.$tn.2 { execsql {PRAGMA foreign_key_check(t1)} } {}
+  do_test without_rowid3-1.1.$tn.3 { execsql {PRAGMA foreign_key_check(t2)} } {}
+  do_test without_rowid3-1.1.$tn.4 { execsql {PRAGMA foreign_key_check(t3)} } {}
+  do_test without_rowid3-1.1.$tn.5 { execsql {PRAGMA foreign_key_check(t4)} } {}
+  do_test without_rowid3-1.1.$tn.6 { execsql {PRAGMA foreign_key_check(t7)} } {}
+  do_test without_rowid3-1.1.$tn.7 { execsql {PRAGMA foreign_key_check(t8)} } {}
+}
+drop_all_tables
+
+do_test without_rowid3-1.2.0 {
+  execsql [string map {/D/ {DEFERRABLE INITIALLY DEFERRED}} $FkeySimpleSchema]
+} {}
+foreach {tn zSql res} $FkeySimpleTests {
+  do_test without_rowid3-1.2.$tn { catchsql $zSql } $res
+  do_test without_rowid3-1.2.$tn.2 { execsql {PRAGMA foreign_key_check(t1)} } {}
+  do_test without_rowid3-1.2.$tn.3 { execsql {PRAGMA foreign_key_check(t2)} } {}
+  do_test without_rowid3-1.2.$tn.4 { execsql {PRAGMA foreign_key_check(t3)} } {}
+  do_test without_rowid3-1.2.$tn.5 { execsql {PRAGMA foreign_key_check(t4)} } {}
+  do_test without_rowid3-1.2.$tn.6 { execsql {PRAGMA foreign_key_check(t7)} } {}
+  do_test without_rowid3-1.2.$tn.7 { execsql {PRAGMA foreign_key_check(t8)} } {}
+}
+drop_all_tables
+
+do_test without_rowid3-1.3.0 {
+  execsql [string map {/D/ {}} $FkeySimpleSchema]
+  execsql { PRAGMA count_changes = 1 }
+} {}
+foreach {tn zSql res} $FkeySimpleTests {
+  if {$res == "0 {}"} { set res {0 1} }
+  do_test without_rowid3-1.3.$tn { catchsql $zSql } $res
+  do_test without_rowid3-1.3.$tn.2 { execsql {PRAGMA foreign_key_check(t1)} } {}
+  do_test without_rowid3-1.3.$tn.3 { execsql {PRAGMA foreign_key_check(t2)} } {}
+  do_test without_rowid3-1.3.$tn.4 { execsql {PRAGMA foreign_key_check(t3)} } {}
+  do_test without_rowid3-1.3.$tn.5 { execsql {PRAGMA foreign_key_check(t4)} } {}
+  do_test without_rowid3-1.3.$tn.6 { execsql {PRAGMA foreign_key_check(t7)} } {}
+  do_test without_rowid3-1.3.$tn.7 { execsql {PRAGMA foreign_key_check(t8)} } {}
+}
+execsql { PRAGMA count_changes = 0 }
+drop_all_tables
+
+do_test without_rowid3-1.4.0 {
+  execsql [string map {/D/ {}} $FkeySimpleSchema]
+  execsql { PRAGMA count_changes = 1 }
+} {}
+foreach {tn zSql res} $FkeySimpleTests {
+  if {$res == "0 {}"} { set res {0 1} }
+  execsql BEGIN
+  do_test without_rowid3-1.4.$tn { catchsql $zSql } $res
+  execsql COMMIT
+}
+execsql { PRAGMA count_changes = 0 }
+drop_all_tables
+
+# Special test: When the parent key is an IPK, make sure the affinity of
+# the IPK is not applied to the child key value before it is inserted
+# into the child table.
+do_test without_rowid3-1.5.1 {
+  execsql {
+    CREATE TABLE i(i INT PRIMARY KEY) WITHOUT rowid;
+    CREATE TABLE j(j REFERENCES i);
+    INSERT INTO i VALUES(35);
+    INSERT INTO j VALUES('35.0');
+    SELECT j, typeof(j) FROM j;
+  }
+} {35.0 text}
+do_test without_rowid3-1.5.2 {
+  catchsql { DELETE FROM i }
+} {1 {FOREIGN KEY constraint failed}}
+
+# Same test using a regular primary key with integer affinity.
+drop_all_tables
+do_test without_rowid3-1.6.1 {
+  execsql {
+    CREATE TABLE i(i INT UNIQUE);
+    CREATE TABLE j(j REFERENCES i(i));
+    INSERT INTO i VALUES('35.0');
+    INSERT INTO j VALUES('35.0');
+    SELECT j, typeof(j) FROM j;
+    SELECT i, typeof(i) FROM i;
+  }
+} {35.0 text 35 integer}
+do_test without_rowid3-1.6.2 {
+  catchsql { DELETE FROM i }
+} {1 {FOREIGN KEY constraint failed}}
+
+# Use a collation sequence on the parent key.
+drop_all_tables
+do_test without_rowid3-1.7.1 {
+  execsql {
+    CREATE TABLE i(i TEXT COLLATE nocase PRIMARY KEY) WITHOUT rowid;
+    CREATE TABLE j(j TEXT COLLATE binary REFERENCES i(i));
+    INSERT INTO i VALUES('SQLite');
+    INSERT INTO j VALUES('sqlite');
+  }
+  catchsql { DELETE FROM i }
+} {1 {FOREIGN KEY constraint failed}}
+
+# Use the parent key collation even if it is default and the child key
+# has an explicit value.
+drop_all_tables
+do_test without_rowid3-1.7.2 {
+  execsql {
+    CREATE TABLE i(i TEXT PRIMARY KEY) WITHOUT rowid;  -- Colseq is "BINARY"
+    CREATE TABLE j(j TEXT COLLATE nocase REFERENCES i(i));
+    INSERT INTO i VALUES('SQLite');
+  }
+  catchsql { INSERT INTO j VALUES('sqlite') }
+} {1 {FOREIGN KEY constraint failed}}
+do_test without_rowid3-1.7.3 {
+  execsql {
+    INSERT INTO i VALUES('sqlite');
+    INSERT INTO j VALUES('sqlite');
+    DELETE FROM i WHERE i = 'SQLite';
+  }
+  catchsql { DELETE FROM i WHERE i = 'sqlite' }
+} {1 {FOREIGN KEY constraint failed}}
+
+#-------------------------------------------------------------------------
+# This section (test cases without_rowid3-2.*) contains tests to check that the
+# deferred foreign key constraint logic works.
+#
+proc without_rowid3-2-test {tn nocommit sql {res {}}} {
+  if {$res eq "FKV"} {
+    set expected {1 {FOREIGN KEY constraint failed}}
+  } else {
+    set expected [list 0 $res]
+  }
+  do_test without_rowid3-2.$tn [list catchsql $sql] $expected
+  if {$nocommit} {
+    do_test without_rowid3-2.${tn}c {
+      catchsql COMMIT
+    } {1 {FOREIGN KEY constraint failed}}
+  }
+}
+
+without_rowid3-2-test 1 0 {
+  CREATE TABLE node(
+    nodeid PRIMARY KEY,
+    parent REFERENCES node DEFERRABLE INITIALLY DEFERRED
+  ) WITHOUT rowid;
+  CREATE TABLE leaf(
+    cellid PRIMARY KEY,
+    parent REFERENCES node DEFERRABLE INITIALLY DEFERRED
+  ) WITHOUT rowid;
+}
+
+without_rowid3-2-test 1  0 "INSERT INTO node VALUES(1, 0)"       FKV
+without_rowid3-2-test 2  0 "BEGIN"
+without_rowid3-2-test 3  1   "INSERT INTO node VALUES(1, 0)"
+without_rowid3-2-test 4  0   "UPDATE node SET parent = NULL"
+without_rowid3-2-test 5  0 "COMMIT"
+without_rowid3-2-test 6  0 "SELECT * FROM node" {1 {}}
+
+without_rowid3-2-test 7  0 "BEGIN"
+without_rowid3-2-test 8  1   "INSERT INTO leaf VALUES('a', 2)"
+without_rowid3-2-test 9  1   "INSERT INTO node VALUES(2, 0)"
+without_rowid3-2-test 10 0   "UPDATE node SET parent = 1 WHERE nodeid = 2"
+without_rowid3-2-test 11 0 "COMMIT"
+without_rowid3-2-test 12 0 "SELECT * FROM node" {1 {} 2 1}
+without_rowid3-2-test 13 0 "SELECT * FROM leaf" {a 2}
+
+without_rowid3-2-test 14 0 "BEGIN"
+without_rowid3-2-test 15 1   "DELETE FROM node WHERE nodeid = 2"
+without_rowid3-2-test 16 0   "INSERT INTO node VALUES(2, NULL)"
+without_rowid3-2-test 17 0 "COMMIT"
+without_rowid3-2-test 18 0 "SELECT * FROM node" {1 {} 2 {}}
+without_rowid3-2-test 19 0 "SELECT * FROM leaf" {a 2}
+
+without_rowid3-2-test 20 0 "BEGIN"
+without_rowid3-2-test 21 0   "INSERT INTO leaf VALUES('b', 1)"
+without_rowid3-2-test 22 0   "SAVEPOINT save"
+without_rowid3-2-test 23 0     "DELETE FROM node WHERE nodeid = 1"
+without_rowid3-2-test 24 0   "ROLLBACK TO save"
+without_rowid3-2-test 25 0 "COMMIT"
+without_rowid3-2-test 26 0 "SELECT * FROM node" {1 {} 2 {}}
+without_rowid3-2-test 27 0 "SELECT * FROM leaf" {a 2 b 1}
+
+without_rowid3-2-test 28 0 "BEGIN"
+without_rowid3-2-test 29 0   "INSERT INTO leaf VALUES('c', 1)"
+without_rowid3-2-test 30 0   "SAVEPOINT save"
+without_rowid3-2-test 31 0     "DELETE FROM node WHERE nodeid = 1"
+without_rowid3-2-test 32 1   "RELEASE save"
+without_rowid3-2-test 33 1   "DELETE FROM leaf WHERE cellid = 'b'"
+without_rowid3-2-test 34 0   "DELETE FROM leaf WHERE cellid = 'c'"
+without_rowid3-2-test 35 0 "COMMIT"
+without_rowid3-2-test 36 0 "SELECT * FROM node" {2 {}} 
+without_rowid3-2-test 37 0 "SELECT * FROM leaf" {a 2}
+
+without_rowid3-2-test 38 0 "SAVEPOINT outer"
+without_rowid3-2-test 39 1   "INSERT INTO leaf VALUES('d', 3)"
+without_rowid3-2-test 40 1 "RELEASE outer"    FKV
+without_rowid3-2-test 41 1   "INSERT INTO leaf VALUES('e', 3)"
+without_rowid3-2-test 42 0   "INSERT INTO node VALUES(3, 2)"
+without_rowid3-2-test 43 0 "RELEASE outer"
+
+without_rowid3-2-test 44 0 "SAVEPOINT outer"
+without_rowid3-2-test 45 1   "DELETE FROM node WHERE nodeid=3"
+without_rowid3-2-test 47 0   "INSERT INTO node VALUES(3, 2)"
+without_rowid3-2-test 48 0 "ROLLBACK TO outer"
+without_rowid3-2-test 49 0 "RELEASE outer"
+
+without_rowid3-2-test 50 0 "SAVEPOINT outer"
+without_rowid3-2-test 51 1   "INSERT INTO leaf VALUES('f', 4)"
+without_rowid3-2-test 52 1   "SAVEPOINT inner"
+without_rowid3-2-test 53 1     "INSERT INTO leaf VALUES('g', 4)"
+without_rowid3-2-test 54 1  "RELEASE outer"   FKV
+without_rowid3-2-test 55 1   "ROLLBACK TO inner"
+without_rowid3-2-test 56 0  "COMMIT"          FKV
+without_rowid3-2-test 57 0   "INSERT INTO node VALUES(4, NULL)"
+without_rowid3-2-test 58 0 "RELEASE outer"
+without_rowid3-2-test 59 0 "SELECT * FROM node" {2 {} 3 2 4 {}}
+without_rowid3-2-test 60 0 "SELECT * FROM leaf" {a 2 d 3 e 3 f 4}
+
+# The following set of tests check that if a statement that affects 
+# multiple rows violates some foreign key constraints, then strikes a 
+# constraint that causes the statement-transaction to be rolled back, 
+# the deferred constraint counter is correctly reset to the value it 
+# had before the statement-transaction was opened.
+#
+without_rowid3-2-test 61 0 "BEGIN"
+without_rowid3-2-test 62 0   "DELETE FROM leaf"
+without_rowid3-2-test 63 0   "DELETE FROM node"
+without_rowid3-2-test 64 1   "INSERT INTO leaf VALUES('a', 1)"
+without_rowid3-2-test 65 1   "INSERT INTO leaf VALUES('b', 2)"
+without_rowid3-2-test 66 1   "INSERT INTO leaf VALUES('c', 1)"
+do_test without_rowid3-2-test-67 {
+  catchsql          "INSERT INTO node SELECT parent, 3 FROM leaf"
+} {1 {UNIQUE constraint failed: node.nodeid}}
+without_rowid3-2-test 68 0 "COMMIT"           FKV
+without_rowid3-2-test 69 1   "INSERT INTO node VALUES(1, NULL)"
+without_rowid3-2-test 70 0   "INSERT INTO node VALUES(2, NULL)"
+without_rowid3-2-test 71 0 "COMMIT"
+
+without_rowid3-2-test 72 0 "BEGIN"
+without_rowid3-2-test 73 1   "DELETE FROM node"
+without_rowid3-2-test 74 0   "INSERT INTO node(nodeid) SELECT DISTINCT parent FROM leaf"
+without_rowid3-2-test 75 0 "COMMIT"
+
+#-------------------------------------------------------------------------
+# Test cases without_rowid3-3.* test that a program that executes foreign key
+# actions (CASCADE, SET DEFAULT, SET NULL etc.) or tests FK constraints
+# opens a statement transaction if required.
+#
+# without_rowid3-3.1.*: Test UPDATE statements.
+# without_rowid3-3.2.*: Test DELETE statements.
+#
+drop_all_tables
+do_test without_rowid3-3.1.1 {
+  execsql {
+    CREATE TABLE ab(a PRIMARY KEY, b) WITHOUT rowid;
+    CREATE TABLE cd(
+      c PRIMARY KEY REFERENCES ab ON UPDATE CASCADE ON DELETE CASCADE, 
+      d
+    ) WITHOUT rowid;
+    CREATE TABLE ef(
+      e REFERENCES cd ON UPDATE CASCADE, 
+      f, CHECK (e!=5)
+    );
+  }
+} {}
+do_test without_rowid3-3.1.2 {
+  execsql {
+    INSERT INTO ab VALUES(1, 'b');
+    INSERT INTO cd VALUES(1, 'd');
+    INSERT INTO ef VALUES(1, 'e');
+  }
+} {}
+do_test without_rowid3-3.1.3 {
+  catchsql { UPDATE ab SET a = 5 }
+} {1 {CHECK constraint failed: e!=5}}
+do_test without_rowid3-3.1.4 {
+  execsql { SELECT * FROM ab }
+} {1 b}
+do_test without_rowid3-3.1.4 {
+  execsql BEGIN;
+  catchsql { UPDATE ab SET a = 5 }
+} {1 {CHECK constraint failed: e!=5}}
+do_test without_rowid3-3.1.5 {
+  execsql COMMIT;
+  execsql { SELECT * FROM ab; SELECT * FROM cd; SELECT * FROM ef }
+} {1 b 1 d 1 e}
+
+do_test without_rowid3-3.2.1 {
+  execsql BEGIN;
+  catchsql { DELETE FROM ab }
+} {1 {FOREIGN KEY constraint failed}}
+do_test without_rowid3-3.2.2 {
+  execsql COMMIT
+  execsql { SELECT * FROM ab; SELECT * FROM cd; SELECT * FROM ef }
+} {1 b 1 d 1 e}
+
+#-------------------------------------------------------------------------
+# Test cases without_rowid3-4.* test that recursive foreign key actions 
+# (i.e. CASCADE) are allowed even if recursive triggers are disabled.
+#
+drop_all_tables
+do_test without_rowid3-4.1 {
+  execsql {
+    CREATE TABLE t1(
+      node PRIMARY KEY, 
+      parent REFERENCES t1 ON DELETE CASCADE
+    ) WITHOUT rowid;
+    CREATE TABLE t2(node PRIMARY KEY, parent) WITHOUT rowid;
+    CREATE TRIGGER t2t AFTER DELETE ON t2 BEGIN
+      DELETE FROM t2 WHERE parent = old.node;
+    END;
+    INSERT INTO t1 VALUES(1, NULL);
+    INSERT INTO t1 VALUES(2, 1);
+    INSERT INTO t1 VALUES(3, 1);
+    INSERT INTO t1 VALUES(4, 2);
+    INSERT INTO t1 VALUES(5, 2);
+    INSERT INTO t1 VALUES(6, 3);
+    INSERT INTO t1 VALUES(7, 3);
+    INSERT INTO t2 SELECT * FROM t1;
+  }
+} {}
+do_test without_rowid3-4.2 {
+  execsql { PRAGMA recursive_triggers = off }
+  execsql { 
+    BEGIN;
+      DELETE FROM t1 WHERE node = 1;
+      SELECT node FROM t1;
+  }
+} {}
+do_test without_rowid3-4.3 {
+  execsql { 
+      DELETE FROM t2 WHERE node = 1;
+      SELECT node FROM t2;
+    ROLLBACK;
+  }
+} {4 5 6 7}
+do_test without_rowid3-4.4 {
+  execsql { PRAGMA recursive_triggers = on }
+  execsql { 
+    BEGIN;
+      DELETE FROM t1 WHERE node = 1;
+      SELECT node FROM t1;
+  }
+} {}
+do_test without_rowid3-4.3 {
+  execsql { 
+      DELETE FROM t2 WHERE node = 1;
+      SELECT node FROM t2;
+    ROLLBACK;
+  }
+} {}
+
+#-------------------------------------------------------------------------
+# Test cases without_rowid3-5.* verify that the incremental blob API may not
+# write to a foreign key column while foreign-keys are enabled.
+#
+drop_all_tables
+ifcapable incrblob {
+  do_test without_rowid3-5.1 {
+    execsql {
+      CREATE TABLE t1(a PRIMARY KEY, b) WITHOUT rowid;
+      CREATE TABLE t2(a PRIMARY KEY, b REFERENCES t1(a)) WITHOUT rowid;
+      INSERT INTO t1 VALUES('hello', 'world');
+      INSERT INTO t2 VALUES('key', 'hello');
+    }
+  } {}
+  do_test without_rowid3-5.2 {
+    set rc [catch { set fd [db incrblob t2 b 1] } msg]
+    list $rc $msg
+  } {1 {cannot open table without rowid: t2}}
+  do_test without_rowid3-5.5 {
+    execsql { PRAGMA foreign_keys = on }
+  } {}
+}
+
+drop_all_tables
+ifcapable vacuum {
+  do_test without_rowid3-6.1 {
+    execsql {
+      CREATE TABLE t1(a REFERENCES t2(c), b);
+      CREATE TABLE t2(c UNIQUE, b);
+      INSERT INTO t2 VALUES(1, 2);
+      INSERT INTO t1 VALUES(1, 2);
+      VACUUM;
+    }
+  } {}
+}
+
+#-------------------------------------------------------------------------
+# Test that it is possible to use an INT PRIMARY KEY as the child key
+# of a foreign constraint.
+# 
+drop_all_tables
+do_test without_rowid3-7.1 {
+  execsql {
+    CREATE TABLE t1(a PRIMARY KEY, b) WITHOUT rowid;
+    CREATE TABLE t2(c INT PRIMARY KEY REFERENCES t1, b) WITHOUT rowid;
+  }
+} {}
+do_test without_rowid3-7.2 {
+  catchsql { INSERT INTO t2 VALUES(1, 'A'); }
+} {1 {FOREIGN KEY constraint failed}}
+do_test without_rowid3-7.3 {
+  execsql { 
+    INSERT INTO t1 VALUES(1, 2);
+    INSERT INTO t1 VALUES(2, 3);
+    INSERT INTO t2 VALUES(1, 'A');
+  }
+} {}
+do_test without_rowid3-7.4 {
+  execsql { UPDATE t2 SET c = 2 }
+} {}
+do_test without_rowid3-7.5 {
+  catchsql { UPDATE t2 SET c = 3 }
+} {1 {FOREIGN KEY constraint failed}}
+do_test without_rowid3-7.6 {
+  catchsql { DELETE FROM t1 WHERE a = 2 }
+} {1 {FOREIGN KEY constraint failed}}
+do_test without_rowid3-7.7 {
+  execsql { DELETE FROM t1 WHERE a = 1 }
+} {}
+do_test without_rowid3-7.8 {
+  catchsql { UPDATE t1 SET a = 3 }
+} {1 {FOREIGN KEY constraint failed}}
+
+#-------------------------------------------------------------------------
+# Test that it is not possible to enable/disable FK support while a
+# transaction is open.
+# 
+drop_all_tables
+proc without_rowid3-8-test {tn zSql value} {
+  do_test without_rowid3-2.8.$tn.1 [list execsql $zSql] {}
+  do_test without_rowid3-2.8.$tn.2 { execsql "PRAGMA foreign_keys" } $value
+}
+without_rowid3-8-test  1 { PRAGMA foreign_keys = 0     } 0
+without_rowid3-8-test  2 { PRAGMA foreign_keys = 1     } 1
+without_rowid3-8-test  3 { BEGIN                       } 1
+without_rowid3-8-test  4 { PRAGMA foreign_keys = 0     } 1
+without_rowid3-8-test  5 { COMMIT                      } 1
+without_rowid3-8-test  6 { PRAGMA foreign_keys = 0     } 0
+without_rowid3-8-test  7 { BEGIN                       } 0
+without_rowid3-8-test  8 { PRAGMA foreign_keys = 1     } 0
+without_rowid3-8-test  9 { COMMIT                      } 0
+without_rowid3-8-test 10 { PRAGMA foreign_keys = 1     } 1
+without_rowid3-8-test 11 { PRAGMA foreign_keys = off   } 0
+without_rowid3-8-test 12 { PRAGMA foreign_keys = on    } 1
+without_rowid3-8-test 13 { PRAGMA foreign_keys = no    } 0
+without_rowid3-8-test 14 { PRAGMA foreign_keys = yes   } 1
+without_rowid3-8-test 15 { PRAGMA foreign_keys = false } 0
+without_rowid3-8-test 16 { PRAGMA foreign_keys = true  } 1
+
+#-------------------------------------------------------------------------
+# The following tests, without_rowid3-9.*, test SET DEFAULT actions.
+#
+drop_all_tables
+do_test without_rowid3-9.1.1 {
+  execsql {
+    CREATE TABLE t1(a INT PRIMARY KEY, b) WITHOUT rowid;
+    CREATE TABLE t2(
+      c INT PRIMARY KEY,
+      d INTEGER DEFAULT 1 REFERENCES t1 ON DELETE SET DEFAULT
+    ) WITHOUT rowid;
+    DELETE FROM t1;
+  }
+} {}
+do_test without_rowid3-9.1.2 {
+  execsql {
+    INSERT INTO t1 VALUES(1, 'one');
+    INSERT INTO t1 VALUES(2, 'two');
+    INSERT INTO t2 VALUES(1, 2);
+    SELECT * FROM t2;
+    DELETE FROM t1 WHERE a = 2;
+    SELECT * FROM t2;
+  }
+} {1 2 1 1}
+do_test without_rowid3-9.1.3 {
+  execsql {
+    INSERT INTO t1 VALUES(2, 'two');
+    UPDATE t2 SET d = 2;
+    DELETE FROM t1 WHERE a = 1;
+    SELECT * FROM t2;
+  }
+} {1 2}
+do_test without_rowid3-9.1.4 {
+  execsql { SELECT * FROM t1 }
+} {2 two}
+do_test without_rowid3-9.1.5 {
+  catchsql { DELETE FROM t1 }
+} {1 {FOREIGN KEY constraint failed}}
+
+do_test without_rowid3-9.2.1 {
+  execsql {
+    CREATE TABLE pp(a, b, c, PRIMARY KEY(b, c)) WITHOUT rowid;
+    CREATE TABLE cc(d DEFAULT 3, e DEFAULT 1, f DEFAULT 2,
+        FOREIGN KEY(f, d) REFERENCES pp 
+        ON UPDATE SET DEFAULT 
+        ON DELETE SET NULL
+    );
+    INSERT INTO pp VALUES(1, 2, 3);
+    INSERT INTO pp VALUES(4, 5, 6);
+    INSERT INTO pp VALUES(7, 8, 9);
+  }
+} {}
+do_test without_rowid3-9.2.2 {
+  execsql {
+    INSERT INTO cc VALUES(6, 'A', 5);
+    INSERT INTO cc VALUES(6, 'B', 5);
+    INSERT INTO cc VALUES(9, 'A', 8);
+    INSERT INTO cc VALUES(9, 'B', 8);
+    UPDATE pp SET b = 1 WHERE a = 7;
+    SELECT * FROM cc;
+  }
+} {6 A 5 6 B 5 3 A 2 3 B 2}
+do_test without_rowid3-9.2.3 {
+  execsql {
+    DELETE FROM pp WHERE a = 4;
+    SELECT * FROM cc;
+  }
+} {{} A {} {} B {} 3 A 2 3 B 2}
+
+#-------------------------------------------------------------------------
+# The following tests, without_rowid3-10.*, test "foreign key mismatch" and 
+# other errors.
+#
+set tn 0
+foreach zSql [list {
+  CREATE TABLE p(a PRIMARY KEY, b) WITHOUT rowid;
+  CREATE TABLE c(x REFERENCES p(c));
+} {
+  CREATE TABLE c(x REFERENCES v(y));
+  CREATE VIEW v AS SELECT x AS y FROM c;
+} {
+  CREATE TABLE p(a, b, PRIMARY KEY(a, b)) WITHOUT rowid;
+  CREATE TABLE c(x REFERENCES p);
+} {
+  CREATE TABLE p(a COLLATE binary, b);
+  CREATE UNIQUE INDEX i ON p(a COLLATE nocase);
+  CREATE TABLE c(x REFERENCES p(a));
+}] {
+  drop_all_tables
+  do_test without_rowid3-10.1.[incr tn] {
+    execsql $zSql
+    catchsql { INSERT INTO c DEFAULT VALUES }
+  } {/1 {foreign key mismatch - "c" referencing "."}/}
+}
+
+# "rowid" cannot be used as part of a child or parent key definition 
+# unless it happens to be the name of an explicitly declared column.
+#
+do_test without_rowid3-10.2.1 {
+  drop_all_tables
+  catchsql {
+    CREATE TABLE t1(a PRIMARY KEY, b) WITHOUT rowid;
+    CREATE TABLE t2(c, d, FOREIGN KEY(rowid) REFERENCES t1(a));
+  }
+} {1 {unknown column "rowid" in foreign key definition}}
+do_test without_rowid3-10.2.2 {
+  drop_all_tables
+  catchsql {
+    CREATE TABLE t1(a PRIMARY KEY, b) WITHOUT rowid;
+    CREATE TABLE t2(rowid, d, FOREIGN KEY(rowid) REFERENCES t1(a));
+  }
+} {0 {}}
+do_test without_rowid3-10.2.1 {
+  drop_all_tables
+  catchsql {
+    CREATE TABLE t1(a, b);
+    CREATE TABLE t2(c, d, FOREIGN KEY(c) REFERENCES t1(rowid));
+    INSERT INTO t1(rowid, a, b) VALUES(1, 1, 1);
+    INSERT INTO t2 VALUES(1, 1);
+  }
+} {1 {foreign key mismatch - "t2" referencing "t1"}}
+do_test without_rowid3-10.2.2 {
+  drop_all_tables
+  catchsql {
+    CREATE TABLE t1(rowid PRIMARY KEY, b) WITHOUT rowid;
+    CREATE TABLE t2(c, d, FOREIGN KEY(c) REFERENCES t1(rowid));
+    INSERT INTO t1(rowid, b) VALUES(1, 1);
+    INSERT INTO t2 VALUES(1, 1);
+  }
+} {0 {}}
+
+
+#-------------------------------------------------------------------------
+# The following tests, without_rowid3-11.*, test CASCADE actions.
+#
+drop_all_tables
+do_test without_rowid3-11.1.1 {
+  execsql {
+    CREATE TABLE t1(a INT PRIMARY KEY, b) WITHOUT rowid;
+    CREATE TABLE t2(c, d, FOREIGN KEY(c) REFERENCES t1(a) ON UPDATE CASCADE);
+
+    INSERT INTO t1 VALUES(10, 100);
+    INSERT INTO t2 VALUES(10, 100);
+    UPDATE t1 SET a = 15;
+    SELECT * FROM t2;
+  }
+} {15 100}
+
+#-------------------------------------------------------------------------
+# The following tests, without_rowid3-12.*, test RESTRICT actions.
+#
+drop_all_tables
+do_test without_rowid3-12.1.1 {
+  execsql {
+    CREATE TABLE t1(a, b PRIMARY KEY) WITHOUT rowid;
+    CREATE TABLE t2(
+      x REFERENCES t1 ON UPDATE RESTRICT DEFERRABLE INITIALLY DEFERRED 
+    );
+    INSERT INTO t1 VALUES(1, 'one');
+    INSERT INTO t1 VALUES(2, 'two');
+    INSERT INTO t1 VALUES(3, 'three');
+  }
+} {}
+do_test without_rowid3-12.1.2 { 
+  execsql "BEGIN"
+  execsql "INSERT INTO t2 VALUES('two')"
+} {}
+do_test without_rowid3-12.1.3 { 
+  execsql "UPDATE t1 SET b = 'four' WHERE b = 'one'"
+} {}
+do_test without_rowid3-12.1.4 { 
+  catchsql "UPDATE t1 SET b = 'five' WHERE b = 'two'"
+} {1 {FOREIGN KEY constraint failed}}
+do_test without_rowid3-12.1.5 { 
+  execsql "DELETE FROM t1 WHERE b = 'two'"
+} {}
+do_test without_rowid3-12.1.6 { 
+  catchsql "COMMIT"
+} {1 {FOREIGN KEY constraint failed}}
+do_test without_rowid3-12.1.7 { 
+  execsql {
+    INSERT INTO t1 VALUES(2, 'two');
+    COMMIT;
+  }
+} {}
+
+drop_all_tables
+do_test without_rowid3-12.2.1 {
+  execsql {
+    CREATE TABLE t1(x COLLATE NOCASE PRIMARY KEY) WITHOUT rowid;
+    CREATE TRIGGER tt1 AFTER DELETE ON t1 
+      WHEN EXISTS ( SELECT 1 FROM t2 WHERE old.x = y )
+    BEGIN
+      INSERT INTO t1 VALUES(old.x);
+    END;
+    CREATE TABLE t2(y REFERENCES t1);
+    INSERT INTO t1 VALUES('A');
+    INSERT INTO t1 VALUES('B');
+    INSERT INTO t2 VALUES('a');
+    INSERT INTO t2 VALUES('b');
+
+    SELECT * FROM t1;
+    SELECT * FROM t2;
+  }
+} {A B a b}
+do_test without_rowid3-12.2.2 {
+  execsql { DELETE FROM t1 }
+  execsql {
+    SELECT * FROM t1;
+    SELECT * FROM t2;
+  }
+} {A B a b}
+do_test without_rowid3-12.2.3 {
+  execsql {
+    DROP TABLE t2;
+    CREATE TABLE t2(y REFERENCES t1 ON DELETE RESTRICT);
+    INSERT INTO t2 VALUES('a');
+    INSERT INTO t2 VALUES('b');
+  }
+  catchsql { DELETE FROM t1 }
+} {1 {FOREIGN KEY constraint failed}}
+do_test without_rowid3-12.2.4 {
+  execsql {
+    SELECT * FROM t1;
+    SELECT * FROM t2;
+  }
+} {A B a b}
+
+drop_all_tables
+do_test without_rowid3-12.3.1 {
+  execsql {
+    CREATE TABLE up(
+      c00, c01, c02, c03, c04, c05, c06, c07, c08, c09,
+      c10, c11, c12, c13, c14, c15, c16, c17, c18, c19,
+      c20, c21, c22, c23, c24, c25, c26, c27, c28, c29,
+      c30, c31, c32, c33, c34, c35, c36, c37, c38, c39,
+      PRIMARY KEY(c34, c35)
+    ) WITHOUT rowid;
+    CREATE TABLE down(
+      c00, c01, c02, c03, c04, c05, c06, c07, c08, c09,
+      c10, c11, c12, c13, c14, c15, c16, c17, c18, c19,
+      c20, c21, c22, c23, c24, c25, c26, c27, c28, c29,
+      c30, c31, c32, c33, c34, c35, c36, c37, c38, c39,
+      FOREIGN KEY(c39, c38) REFERENCES up ON UPDATE CASCADE
+    );
+  }
+} {}
+do_test without_rowid3-12.3.2 {
+  execsql {
+    INSERT INTO up(c34, c35) VALUES('yes', 'no');
+    INSERT INTO down(c39, c38) VALUES('yes', 'no');
+    UPDATE up SET c34 = 'possibly';
+    SELECT c38, c39 FROM down;
+    DELETE FROM down;
+  }
+} {no possibly}
+do_test without_rowid3-12.3.3 {
+  catchsql { INSERT INTO down(c39, c38) VALUES('yes', 'no') }
+} {1 {FOREIGN KEY constraint failed}}
+do_test without_rowid3-12.3.4 {
+  execsql { 
+    INSERT INTO up(c34, c35) VALUES('yes', 'no');
+    INSERT INTO down(c39, c38) VALUES('yes', 'no');
+  }
+  catchsql { DELETE FROM up WHERE c34 = 'yes' }
+} {1 {FOREIGN KEY constraint failed}}
+do_test without_rowid3-12.3.5 {
+  execsql { 
+    DELETE FROM up WHERE c34 = 'possibly';
+    SELECT c34, c35 FROM up;
+    SELECT c39, c38 FROM down;
+  }
+} {yes no yes no}
+
+#-------------------------------------------------------------------------
+# The following tests, without_rowid3-13.*, test that FK processing is performed
+# when rows are REPLACEd.
+#
+drop_all_tables
+do_test without_rowid3-13.1.1 {
+  execsql {
+    CREATE TABLE pp(a UNIQUE, b, c, PRIMARY KEY(b, c)) WITHOUT rowid;
+    CREATE TABLE cc(d, e, f UNIQUE, FOREIGN KEY(d, e) REFERENCES pp);
+    INSERT INTO pp VALUES(1, 2, 3);
+    INSERT INTO cc VALUES(2, 3, 1);
+  }
+} {}
+foreach {tn stmt} {
+  1   "REPLACE INTO pp VALUES(1, 4, 5)"
+} {
+  do_test without_rowid3-13.1.$tn.1 {
+    catchsql $stmt
+  } {1 {FOREIGN KEY constraint failed}}
+  do_test without_rowid3-13.1.$tn.2 {
+    execsql {
+      SELECT * FROM pp;
+      SELECT * FROM cc;
+    }
+  } {1 2 3 2 3 1}
+  do_test without_rowid3-13.1.$tn.3 {
+    execsql BEGIN;
+    catchsql $stmt
+  } {1 {FOREIGN KEY constraint failed}}
+  do_test without_rowid3-13.1.$tn.4 {
+    execsql {
+      COMMIT;
+      SELECT * FROM pp;
+      SELECT * FROM cc;
+    }
+  } {1 2 3 2 3 1}
+}
+
+#-------------------------------------------------------------------------
+# The following tests, without_rowid3-14.*, test that the "DROP TABLE" and "ALTER
+# TABLE" commands work as expected wrt foreign key constraints.
+#
+# without_rowid3-14.1*: ALTER TABLE ADD COLUMN
+# without_rowid3-14.2*: ALTER TABLE RENAME TABLE
+# without_rowid3-14.3*: DROP TABLE
+#
+drop_all_tables
+ifcapable altertable {
+  do_test without_rowid3-14.1.1 {
+    # Adding a column with a REFERENCES clause is not supported.
+    execsql { 
+      CREATE TABLE t1(a PRIMARY KEY) WITHOUT rowid;
+      CREATE TABLE t2(a, b);
+      INSERT INTO t2(a,b) VALUES(1,2);
+    }
+    catchsql { ALTER TABLE t2 ADD COLUMN c REFERENCES t1 }
+  } {0 {}}
+  do_test without_rowid3-14.1.2 {
+    catchsql { ALTER TABLE t2 ADD COLUMN d DEFAULT NULL REFERENCES t1 }
+  } {0 {}}
+  do_test without_rowid3-14.1.3 {
+    catchsql { ALTER TABLE t2 ADD COLUMN e REFERENCES t1 DEFAULT NULL}
+  } {0 {}}
+  do_test without_rowid3-14.1.4 {
+    catchsql { ALTER TABLE t2 ADD COLUMN f REFERENCES t1 DEFAULT 'text'}
+  } {1 {Cannot add a REFERENCES column with non-NULL default value}}
+  do_test without_rowid3-14.1.5 {
+    catchsql { ALTER TABLE t2 ADD COLUMN g DEFAULT CURRENT_TIME REFERENCES t1 }
+  } {1 {Cannot add a REFERENCES column with non-NULL default value}}
+  do_test without_rowid3-14.1.6 {
+    execsql { 
+      PRAGMA foreign_keys = off;
+      ALTER TABLE t2 ADD COLUMN h DEFAULT 'text' REFERENCES t1;
+      PRAGMA foreign_keys = on;
+      SELECT sql FROM sqlite_schema WHERE name='t2';
+    }
+  } {{CREATE TABLE t2(a, b, c REFERENCES t1, d DEFAULT NULL REFERENCES t1, e REFERENCES t1 DEFAULT NULL, h DEFAULT 'text' REFERENCES t1)}}
+  
+  
+  # Test the sqlite_rename_parent() function directly.
+  #
+  proc test_rename_parent {zCreate zOld zNew} {
+    db eval {SELECT sqlite_rename_table(
+        'main', 'table', 't1', $zCreate, $zOld, $zNew, 0
+    )}
+  }
+  sqlite3_test_control SQLITE_TESTCTRL_INTERNAL_FUNCTIONS db
+  do_test without_rowid3-14.2.1.1 {
+    test_rename_parent {CREATE TABLE t1(a REFERENCES t2)} t2 t3
+  } {{CREATE TABLE t1(a REFERENCES "t3")}}
+  do_test without_rowid3-14.2.1.2 {
+    test_rename_parent {CREATE TABLE t1(a REFERENCES t2)} t4 t3
+  } {{CREATE TABLE t1(a REFERENCES t2)}}
+  do_test without_rowid3-14.2.1.3 {
+    test_rename_parent {CREATE TABLE t1(a REFERENCES "t2")} t2 t3
+  } {{CREATE TABLE t1(a REFERENCES "t3")}}
+  sqlite3_test_control SQLITE_TESTCTRL_INTERNAL_FUNCTIONS db
+  
+  # Test ALTER TABLE RENAME TABLE a bit.
+  #
+  do_test without_rowid3-14.2.2.1 {
+    drop_all_tables
+    execsql {
+      CREATE TABLE t1(a PRIMARY KEY, b REFERENCES t1) WITHOUT rowid;
+      CREATE TABLE t2(a PRIMARY KEY, b REFERENCES t1, c REFERENCES t2)
+            WITHOUT rowid;
+      CREATE TABLE t3(a REFERENCES t1, b REFERENCES t2, c REFERENCES t1);
+    }
+    execsql { SELECT sql FROM sqlite_schema WHERE type = 'table'}
+  } [list \
+    {CREATE TABLE t1(a PRIMARY KEY, b REFERENCES t1) WITHOUT rowid}       \
+    {CREATE TABLE t2(a PRIMARY KEY, b REFERENCES t1, c REFERENCES t2)
+            WITHOUT rowid}    \
+    {CREATE TABLE t3(a REFERENCES t1, b REFERENCES t2, c REFERENCES t1)}  \
+  ]
+  do_test without_rowid3-14.2.2.2 {
+    execsql { ALTER TABLE t1 RENAME TO t4 }
+    execsql { SELECT sql FROM sqlite_schema WHERE type = 'table'}
+  } [list \
+    {CREATE TABLE "t4"(a PRIMARY KEY, b REFERENCES "t4") WITHOUT rowid}      \
+    {CREATE TABLE t2(a PRIMARY KEY, b REFERENCES "t4", c REFERENCES t2)
+            WITHOUT rowid}     \
+    {CREATE TABLE t3(a REFERENCES "t4", b REFERENCES t2, c REFERENCES "t4")} \
+  ]
+  do_test without_rowid3-14.2.2.3 {
+    catchsql { INSERT INTO t3 VALUES(1, 2, 3) }
+  } {1 {FOREIGN KEY constraint failed}}
+  do_test without_rowid3-14.2.2.4 {
+    execsql { INSERT INTO t4 VALUES(1, NULL) }
+  } {}
+  do_test without_rowid3-14.2.2.5 {
+    catchsql { UPDATE t4 SET b = 5 }
+  } {1 {FOREIGN KEY constraint failed}}
+  do_test without_rowid3-14.2.2.6 {
+    catchsql { UPDATE t4 SET b = 1 }
+  } {0 {}}
+  do_test without_rowid3-14.2.2.7 {
+    execsql { INSERT INTO t3 VALUES(1, NULL, 1) }
+  } {}
+
+  # Repeat for TEMP tables
+  #
+  drop_all_tables
+  do_test without_rowid3-14.1tmp.1 {
+    # Adding a column with a REFERENCES clause is not supported.
+    execsql { 
+      CREATE TEMP TABLE t1(a PRIMARY KEY) WITHOUT rowid;
+      CREATE TEMP TABLE t2(a, b);
+      INSERT INTO temp.t2(a,b) VALUES(1,2);
+    }
+    catchsql { ALTER TABLE t2 ADD COLUMN c REFERENCES t1 }
+  } {0 {}}
+  do_test without_rowid3-14.1tmp.2 {
+    catchsql { ALTER TABLE t2 ADD COLUMN d DEFAULT NULL REFERENCES t1 }
+  } {0 {}}
+  do_test without_rowid3-14.1tmp.3 {
+    catchsql { ALTER TABLE t2 ADD COLUMN e REFERENCES t1 DEFAULT NULL}
+  } {0 {}}
+  do_test without_rowid3-14.1tmp.4 {
+    catchsql { ALTER TABLE t2 ADD COLUMN f REFERENCES t1 DEFAULT 'text'}
+  } {1 {Cannot add a REFERENCES column with non-NULL default value}}
+  do_test without_rowid3-14.1tmp.5 {
+    catchsql { ALTER TABLE t2 ADD COLUMN g DEFAULT CURRENT_TIME REFERENCES t1 }
+  } {1 {Cannot add a REFERENCES column with non-NULL default value}}
+  do_test without_rowid3-14.1tmp.6 {
+    execsql { 
+      PRAGMA foreign_keys = off;
+      ALTER TABLE t2 ADD COLUMN h DEFAULT 'text' REFERENCES t1;
+      PRAGMA foreign_keys = on;
+      SELECT sql FROM temp.sqlite_schema WHERE name='t2';
+    }
+  } {{CREATE TABLE t2(a, b, c REFERENCES t1, d DEFAULT NULL REFERENCES t1, e REFERENCES t1 DEFAULT NULL, h DEFAULT 'text' REFERENCES t1)}}
+
+  sqlite3_test_control SQLITE_TESTCTRL_INTERNAL_FUNCTIONS db
+  do_test without_rowid3-14.2tmp.1.1 {
+    test_rename_parent {CREATE TABLE t1(a REFERENCES t2)} t2 t3
+  } {{CREATE TABLE t1(a REFERENCES "t3")}}
+  do_test without_rowid3-14.2tmp.1.2 {
+    test_rename_parent {CREATE TABLE t1(a REFERENCES t2)} t4 t3
+  } {{CREATE TABLE t1(a REFERENCES t2)}}
+  do_test without_rowid3-14.2tmp.1.3 {
+    test_rename_parent {CREATE TABLE t1(a REFERENCES "t2")} t2 t3
+  } {{CREATE TABLE t1(a REFERENCES "t3")}}
+  sqlite3_test_control SQLITE_TESTCTRL_INTERNAL_FUNCTIONS db
+  
+  # Test ALTER TABLE RENAME TABLE a bit.
+  #
+  do_test without_rowid3-14.2tmp.2.1 {
+    drop_all_tables
+    execsql {
+      CREATE TEMP TABLE t1(a PRIMARY KEY, b REFERENCES t1) WITHOUT rowid;
+      CREATE TEMP TABLE t2(a PRIMARY KEY, b REFERENCES t1, c REFERENCES t2)
+            WITHOUT rowid;
+      CREATE TEMP TABLE t3(a REFERENCES t1, b REFERENCES t2, c REFERENCES t1);
+    }
+    execsql { SELECT sql FROM sqlite_temp_schema WHERE type = 'table'}
+  } [list \
+    {CREATE TABLE t1(a PRIMARY KEY, b REFERENCES t1) WITHOUT rowid}       \
+    {CREATE TABLE t2(a PRIMARY KEY, b REFERENCES t1, c REFERENCES t2)
+            WITHOUT rowid}    \
+    {CREATE TABLE t3(a REFERENCES t1, b REFERENCES t2, c REFERENCES t1)}  \
+  ]
+  do_test without_rowid3-14.2tmp.2.2 {
+    execsql { ALTER TABLE t1 RENAME TO t4 }
+    execsql { SELECT sql FROM temp.sqlite_schema WHERE type = 'table'}
+  } [list \
+    {CREATE TABLE "t4"(a PRIMARY KEY, b REFERENCES "t4") WITHOUT rowid}      \
+    {CREATE TABLE t2(a PRIMARY KEY, b REFERENCES "t4", c REFERENCES t2)
+            WITHOUT rowid}     \
+    {CREATE TABLE t3(a REFERENCES "t4", b REFERENCES t2, c REFERENCES "t4")} \
+  ]
+  do_test without_rowid3-14.2tmp.2.3 {
+    catchsql { INSERT INTO t3 VALUES(1, 2, 3) }
+  } {1 {FOREIGN KEY constraint failed}}
+  do_test without_rowid3-14.2tmp.2.4 {
+    execsql { INSERT INTO t4 VALUES(1, NULL) }
+  } {}
+  do_test without_rowid3-14.2tmp.2.5 {
+    catchsql { UPDATE t4 SET b = 5 }
+  } {1 {FOREIGN KEY constraint failed}}
+  do_test without_rowid3-14.2tmp.2.6 {
+    catchsql { UPDATE t4 SET b = 1 }
+  } {0 {}}
+  do_test without_rowid3-14.2tmp.2.7 {
+    execsql { INSERT INTO t3 VALUES(1, NULL, 1) }
+  } {}
+
+  # Repeat for ATTACH-ed tables
+  #
+  drop_all_tables
+  do_test without_rowid3-14.1aux.1 {
+    # Adding a column with a REFERENCES clause is not supported.
+    execsql { 
+      ATTACH ':memory:' AS aux;
+      CREATE TABLE aux.t1(a PRIMARY KEY) WITHOUT rowid;
+      CREATE TABLE aux.t2(a, b);
+      INSERT INTO aux.t2(a,b) VALUES(1,2);
+    }
+    catchsql { ALTER TABLE t2 ADD COLUMN c REFERENCES t1 }
+  } {0 {}}
+  do_test without_rowid3-14.1aux.2 {
+    catchsql { ALTER TABLE t2 ADD COLUMN d DEFAULT NULL REFERENCES t1 }
+  } {0 {}}
+  do_test without_rowid3-14.1aux.3 {
+    catchsql { ALTER TABLE t2 ADD COLUMN e REFERENCES t1 DEFAULT NULL}
+  } {0 {}}
+  do_test without_rowid3-14.1aux.4 {
+    catchsql { ALTER TABLE t2 ADD COLUMN f REFERENCES t1 DEFAULT 'text'}
+  } {1 {Cannot add a REFERENCES column with non-NULL default value}}
+  do_test without_rowid3-14.1aux.5 {
+    catchsql { ALTER TABLE t2 ADD COLUMN g DEFAULT CURRENT_TIME REFERENCES t1 }
+  } {1 {Cannot add a REFERENCES column with non-NULL default value}}
+  do_test without_rowid3-14.1aux.6 {
+    execsql { 
+      PRAGMA foreign_keys = off;
+      ALTER TABLE t2 ADD COLUMN h DEFAULT 'text' REFERENCES t1;
+      PRAGMA foreign_keys = on;
+      SELECT sql FROM aux.sqlite_schema WHERE name='t2';
+    }
+  } {{CREATE TABLE t2(a, b, c REFERENCES t1, d DEFAULT NULL REFERENCES t1, e REFERENCES t1 DEFAULT NULL, h DEFAULT 'text' REFERENCES t1)}}
+
+  sqlite3_test_control SQLITE_TESTCTRL_INTERNAL_FUNCTIONS db
+  do_test without_rowid3-14.2aux.1.1 {
+    test_rename_parent {CREATE TABLE t1(a REFERENCES t2)} t2 t3
+  } {{CREATE TABLE t1(a REFERENCES "t3")}}
+  do_test without_rowid3-14.2aux.1.2 {
+    test_rename_parent {CREATE TABLE t1(a REFERENCES t2)} t4 t3
+  } {{CREATE TABLE t1(a REFERENCES t2)}}
+  do_test without_rowid3-14.2aux.1.3 {
+    test_rename_parent {CREATE TABLE t1(a REFERENCES "t2")} t2 t3
+  } {{CREATE TABLE t1(a REFERENCES "t3")}}
+  sqlite3_test_control SQLITE_TESTCTRL_INTERNAL_FUNCTIONS db
+  
+  # Test ALTER TABLE RENAME TABLE a bit.
+  #
+  do_test without_rowid3-14.2aux.2.1 {
+    drop_all_tables
+    execsql {
+      CREATE TABLE aux.t1(a PRIMARY KEY, b REFERENCES t1) WITHOUT rowid;
+      CREATE TABLE aux.t2(a PRIMARY KEY, b REFERENCES t1, c REFERENCES t2)
+            WITHOUT rowid;
+      CREATE TABLE aux.t3(a REFERENCES t1, b REFERENCES t2, c REFERENCES t1);
+    }
+    execsql { SELECT sql FROM aux.sqlite_schema WHERE type = 'table'}
+  } [list \
+    {CREATE TABLE t1(a PRIMARY KEY, b REFERENCES t1) WITHOUT rowid}       \
+    {CREATE TABLE t2(a PRIMARY KEY, b REFERENCES t1, c REFERENCES t2)
+            WITHOUT rowid}    \
+    {CREATE TABLE t3(a REFERENCES t1, b REFERENCES t2, c REFERENCES t1)}  \
+  ]
+  do_test without_rowid3-14.2aux.2.2 {
+    execsql { ALTER TABLE t1 RENAME TO t4 }
+    execsql { SELECT sql FROM aux.sqlite_schema WHERE type = 'table'}
+  } [list \
+    {CREATE TABLE "t4"(a PRIMARY KEY, b REFERENCES "t4") WITHOUT rowid}      \
+    {CREATE TABLE t2(a PRIMARY KEY, b REFERENCES "t4", c REFERENCES t2)
+            WITHOUT rowid}     \
+    {CREATE TABLE t3(a REFERENCES "t4", b REFERENCES t2, c REFERENCES "t4")} \
+  ]
+  do_test without_rowid3-14.2aux.2.3 {
+    catchsql { INSERT INTO t3 VALUES(1, 2, 3) }
+  } {1 {FOREIGN KEY constraint failed}}
+  do_test without_rowid3-14.2aux.2.4 {
+    execsql { INSERT INTO t4 VALUES(1, NULL) }
+  } {}
+  do_test without_rowid3-14.2aux.2.5 {
+    catchsql { UPDATE t4 SET b = 5 }
+  } {1 {FOREIGN KEY constraint failed}}
+  do_test without_rowid3-14.2aux.2.6 {
+    catchsql { UPDATE t4 SET b = 1 }
+  } {0 {}}
+  do_test without_rowid3-14.2aux.2.7 {
+    execsql { INSERT INTO t3 VALUES(1, NULL, 1) }
+  } {}
+}
+
+do_test without_rowid3-2.14.3.1 {
+  drop_all_tables
+  execsql {
+    CREATE TABLE t1(a, b REFERENCES nosuchtable);
+    DROP TABLE t1;
+  }
+} {}
+do_test without_rowid3-2.14.3.2 {
+  execsql {
+    CREATE TABLE t1(a PRIMARY KEY, b) WITHOUT rowid;
+    INSERT INTO t1 VALUES('a', 1);
+    CREATE TABLE t2(x REFERENCES t1);
+    INSERT INTO t2 VALUES('a');
+  }
+} {}
+do_test without_rowid3-2.14.3.3 {
+  catchsql { DROP TABLE t1 }
+} {1 {FOREIGN KEY constraint failed}}
+do_test without_rowid3-2.14.3.4 {
+  execsql {
+    DELETE FROM t2;
+    DROP TABLE t1;
+  }
+} {}
+do_test without_rowid3-2.14.3.4 {
+  catchsql { INSERT INTO t2 VALUES('x') }
+} {1 {no such table: main.t1}}
+do_test without_rowid3-2.14.3.5 {
+  execsql {
+    CREATE TABLE t1(x PRIMARY KEY) WITHOUT rowid;
+    INSERT INTO t1 VALUES('x');
+  }
+  execsql { INSERT INTO t2 VALUES('x') }
+} {}
+do_test without_rowid3-2.14.3.6 {
+  catchsql { DROP TABLE t1 }
+} {1 {FOREIGN KEY constraint failed}}
+do_test without_rowid3-2.14.3.7 {
+  execsql {
+    DROP TABLE t2;
+    DROP TABLE t1;
+  }
+} {}
+do_test without_rowid3-2.14.3.8 {
+  execsql {
+    CREATE TABLE pp(x, y, PRIMARY KEY(x, y)) WITHOUT ROWID;
+    CREATE TABLE cc(a, b, FOREIGN KEY(a, b) REFERENCES pp(x, z));
+  }
+  catchsql { INSERT INTO cc VALUES(1, 2) }
+} {1 {foreign key mismatch - "cc" referencing "pp"}}
+do_test without_rowid3-2.14.3.9 {
+  execsql { DROP TABLE cc }
+} {}
+do_test without_rowid3-2.14.3.10 {
+  execsql {
+    CREATE TABLE cc(a, b, 
+      FOREIGN KEY(a, b) REFERENCES pp DEFERRABLE INITIALLY DEFERRED
+    );
+  }
+  execsql {
+    INSERT INTO pp VALUES('a', 'b');
+    INSERT INTO cc VALUES('a', 'b');
+    BEGIN;
+      DROP TABLE pp;
+      CREATE TABLE pp(a, b, c, PRIMARY KEY(b, c)) WITHOUT rowid;
+      INSERT INTO pp VALUES(1, 'a', 'b');
+    COMMIT;
+  }
+} {}
+do_test without_rowid3-2.14.3.11 {
+  execsql { 
+    BEGIN;
+      DROP TABLE cc;
+      DROP TABLE pp;
+    COMMIT;
+  }
+} {}
+do_test without_rowid3-2.14.3.12 {
+  execsql {
+    CREATE TABLE b1(a, b);
+    CREATE TABLE b2(a, b REFERENCES b1);
+    DROP TABLE b1;
+  }
+} {}
+do_test without_rowid3-2.14.3.13 {
+  execsql {
+    CREATE TABLE b3(a, b REFERENCES b2 DEFERRABLE INITIALLY DEFERRED);
+    DROP TABLE b2;
+  }
+} {}
+
+# Test that nothing goes wrong when dropping a table that refers to a view.
+# Or dropping a view that an existing FK (incorrectly) refers to. Or either
+# of the above scenarios with a virtual table.
+drop_all_tables
+do_test without_rowid3-2.14.4.1 {
+  execsql {
+    CREATE TABLE t1(x REFERENCES v); 
+    CREATE VIEW v AS SELECT * FROM t1;
+  }
+} {}
+do_test without_rowid3-2.14.4.2 {
+  execsql {
+    DROP VIEW v;
+  }
+} {}
+ifcapable vtab {
+  register_echo_module db
+  do_test without_rowid3-2.14.4.3 {
+    execsql { CREATE VIRTUAL TABLE v USING echo(t1) }
+  } {}
+  do_test without_rowid3-2.14.4.2 {
+    execsql {
+      DROP TABLE v;
+    }
+  } {}
+}
+
+#-------------------------------------------------------------------------
+# The following tests, without_rowid3-15.*, test that unnecessary FK related scans 
+# and lookups are avoided when the constraint counters are zero.
+#
+drop_all_tables
+proc execsqlS {zSql} {
+  set ::sqlite_search_count 0
+  set ::sqlite_found_count 0
+  set res [uplevel [list execsql $zSql]]
+  concat [expr $::sqlite_found_count + $::sqlite_search_count] $res
+}
+do_test without_rowid3-15.1.1 {
+  execsql {
+    CREATE TABLE pp(a PRIMARY KEY, b) WITHOUT rowid;
+    CREATE TABLE cc(x, y REFERENCES pp DEFERRABLE INITIALLY DEFERRED);
+    INSERT INTO pp VALUES(1, 'one');
+    INSERT INTO pp VALUES(2, 'two');
+    INSERT INTO cc VALUES('neung', 1);
+    INSERT INTO cc VALUES('song', 2);
+  }
+} {}
+do_test without_rowid3-15.1.2 {
+  execsqlS { INSERT INTO pp VALUES(3, 'three') }
+} {0}
+do_test without_rowid3-15.1.3 {
+  execsql {
+    BEGIN;
+      INSERT INTO cc VALUES('see', 4);    -- Violates deferred constraint
+  }
+  execsqlS { INSERT INTO pp VALUES(5, 'five') }
+} {2}
+do_test without_rowid3-15.1.4 {
+  execsql { DELETE FROM cc WHERE x = 'see' }
+  execsqlS { INSERT INTO pp VALUES(6, 'six') }
+} {0}
+do_test without_rowid3-15.1.5 {
+  execsql COMMIT
+} {}
+do_test without_rowid3-15.1.6 {
+  execsql BEGIN
+  execsqlS {
+    DELETE FROM cc WHERE x = 'neung';
+    ROLLBACK;
+  }
+} {1}
+do_test without_rowid3-15.1.7 {
+  execsql { 
+    BEGIN;
+    DELETE FROM pp WHERE a = 2;
+  }
+  execsqlS {
+    DELETE FROM cc WHERE x = 'neung';
+    ROLLBACK;
+  }
+} {2}
+
+#-------------------------------------------------------------------------
+# This next block of tests, without_rowid3-16.*, test that rows that refer to
+# themselves may be inserted and deleted.
+#
+foreach {tn zSchema} {
+  1 { CREATE TABLE self(a INTEGER PRIMARY KEY, b REFERENCES self(a))
+             WITHOUT rowid }
+  2 { CREATE TABLE self(a PRIMARY KEY, b REFERENCES self(a)) WITHOUT rowid }
+  3 { CREATE TABLE self(a UNIQUE, b INT PRIMARY KEY REFERENCES self(a))
+             WITHOUT rowid }
+} {
+  drop_all_tables
+  do_test without_rowid3-16.1.$tn.1 {
+    execsql $zSchema
+    execsql { INSERT INTO self VALUES(13, 13) }
+  } {}
+  do_test without_rowid3-16.1.$tn.2 {
+    execsql { UPDATE self SET a = 14, b = 14 }
+  } {}
+
+  do_test without_rowid3-16.1.$tn.3 {
+    catchsql { UPDATE self SET b = 15 }
+  } {1 {FOREIGN KEY constraint failed}}
+
+  do_test without_rowid3-16.1.$tn.4 {
+    catchsql { UPDATE self SET a = 15 }
+  } {1 {FOREIGN KEY constraint failed}}
+
+  do_test without_rowid3-16.1.$tn.5 {
+    catchsql { UPDATE self SET a = 15, b = 16 }
+  } {1 {FOREIGN KEY constraint failed}}
+
+  do_test without_rowid3-16.1.$tn.6 {
+    catchsql { UPDATE self SET a = 17, b = 17 }
+  } {0 {}}
+
+  do_test without_rowid3-16.1.$tn.7 {
+    execsql { DELETE FROM self }
+  } {}
+  do_test without_rowid3-16.1.$tn.8 {
+    catchsql { INSERT INTO self VALUES(20, 21) }
+  } {1 {FOREIGN KEY constraint failed}}
+}
+
+# Additional tests cases using multi-column self-referential
+# FOREIGN KEY constraints.
+#
+drop_all_tables
+do_execsql_test without_rowid3-16.4.1.1 {
+  PRAGMA foreign_keys=ON;
+  CREATE TABLE t1(a,b,c,d,e,f,
+     UNIQUE (a,b),
+     PRIMARY KEY (e,c),
+     FOREIGN KEY (d,f) REFERENCES t1(e,c)
+  ) WITHOUT rowid;
+  INSERT INTO t1 VALUES(1,2,3,5,5,3);
+  INSERT INTO t1 VALUES(2,3,4,6,6,4);
+  INSERT INTO t1 VALUES('x','y',1.5,'fizzle','fizzle',1.5);
+  SELECT *, '|' FROM t1 ORDER BY a, b;
+} {1 2 3 5 5 3 | 2 3 4 6 6 4 | x y 1.5 fizzle fizzle 1.5 |}
+
+do_execsql_test without_rowid3-16.4.1.2 {
+  UPDATE t1 SET c=99, f=99 WHERE a=1;
+  SELECT *, '|' FROM t1 ORDER BY a, b;
+} {1 2 99 5 5 99 | 2 3 4 6 6 4 | x y 1.5 fizzle fizzle 1.5 |}
+
+do_execsql_test without_rowid3-16.4.1.3 {
+  UPDATE t1 SET e=876, d=876 WHERE a=2;
+  SELECT *, '|' FROM t1 ORDER BY a, b;
+} {1 2 99 5 5 99 | 2 3 4 876 876 4 | x y 1.5 fizzle fizzle 1.5 |}
+
+do_test without_rowid3-16.4.1.4 {
+  catchsql {
+    UPDATE t1 SET c=11, e=22 WHERE a=1;
+  }
+} {1 {FOREIGN KEY constraint failed}}
+
+do_test without_rowid3-16.4.1.5 {
+  catchsql {
+    UPDATE t1 SET d=11, f=22 WHERE a=1;
+  }
+} {1 {FOREIGN KEY constraint failed}}
+
+do_execsql_test without_rowid3-16.4.1.6 {
+  DELETE FROM t1 WHERE a=1;
+  SELECT *, '|' FROM t1 ORDER BY a, b;
+} {2 3 4 876 876 4 | x y 1.5 fizzle fizzle 1.5 |}
+
+do_execsql_test without_rowid3-16.4.2.1 {
+  DROP TABLE t1;
+  CREATE TABLE t1(a,b,c,d,e,f,
+     PRIMARY KEY (a,b),
+     UNIQUE (e,c),
+     FOREIGN KEY (d,f) REFERENCES t1(e,c)
+  ) WITHOUT rowid;
+  INSERT INTO t1 VALUES(1,2,3,5,5,3);
+  INSERT INTO t1 VALUES(2,3,4,6,6,4);
+  INSERT INTO t1 VALUES('x','y',1.5,'fizzle','fizzle',1.5);
+  SELECT *, '|' FROM t1 ORDER BY a, b;
+} {1 2 3 5 5 3 | 2 3 4 6 6 4 | x y 1.5 fizzle fizzle 1.5 |}
+
+do_execsql_test without_rowid3-16.4.2.2 {
+  UPDATE t1 SET c=99, f=99 WHERE a=1;
+  SELECT *, '|' FROM t1 ORDER BY a, b;
+} {1 2 99 5 5 99 | 2 3 4 6 6 4 | x y 1.5 fizzle fizzle 1.5 |}
+
+do_execsql_test without_rowid3-16.4.2.3 {
+  UPDATE t1 SET e=876, d=876 WHERE a=2;
+  SELECT *, '|' FROM t1 ORDER BY a, b;
+} {1 2 99 5 5 99 | 2 3 4 876 876 4 | x y 1.5 fizzle fizzle 1.5 |}
+
+do_test without_rowid3-16.4.2.4 {
+  catchsql {
+    UPDATE t1 SET c=11, e=22 WHERE a=1;
+  }
+} {1 {FOREIGN KEY constraint failed}}
+
+do_test without_rowid3-16.4.2.5 {
+  catchsql {
+    UPDATE t1 SET d=11, f=22 WHERE a=1;
+  }
+} {1 {FOREIGN KEY constraint failed}}
+
+do_execsql_test without_rowid3-16.4.2.6 {
+  DELETE FROM t1 WHERE a=1;
+  SELECT *, '|' FROM t1 ORDER BY a, b;
+} {2 3 4 876 876 4 | x y 1.5 fizzle fizzle 1.5 |}
+
+
+#-------------------------------------------------------------------------
+# This next block of tests, without_rowid3-17.*, tests that if "PRAGMA count_changes"
+# is turned on statements that violate immediate FK constraints return
+# SQLITE_CONSTRAINT immediately, not after returning a number of rows.
+# Whereas statements that violate deferred FK constraints return the number
+# of rows before failing.
+#
+# Also test that rows modified by FK actions are not counted in either the
+# returned row count or the values returned by sqlite3_changes(). Like
+# trigger related changes, they are included in sqlite3_total_changes() though.
+#
+drop_all_tables
+do_test without_rowid3-17.1.1 {
+  execsql { PRAGMA count_changes = 1 }
+  execsql { 
+    CREATE TABLE one(a, b, c, UNIQUE(b, c));
+    CREATE TABLE two(d, e, f, FOREIGN KEY(e, f) REFERENCES one(b, c));
+    INSERT INTO one VALUES(1, 2, 3);
+  }
+} {1}
+do_test without_rowid3-17.1.2 {
+  set STMT [sqlite3_prepare_v2 db "INSERT INTO two VALUES(4, 5, 6)" -1 dummy]
+  sqlite3_step $STMT
+} {SQLITE_CONSTRAINT}
+verify_ex_errcode without_rowid3-17.1.2b SQLITE_CONSTRAINT_FOREIGNKEY
+ifcapable autoreset {
+  do_test without_rowid3-17.1.3 {
+    sqlite3_step $STMT
+  } {SQLITE_CONSTRAINT}
+  verify_ex_errcode without_rowid3-17.1.3b SQLITE_CONSTRAINT_FOREIGNKEY
+} else {
+  do_test without_rowid3-17.1.3 {
+    sqlite3_step $STMT
+  } {SQLITE_MISUSE}
+}
+do_test without_rowid3-17.1.4 {
+  sqlite3_finalize $STMT
+} {SQLITE_CONSTRAINT}
+verify_ex_errcode without_rowid3-17.1.4b SQLITE_CONSTRAINT_FOREIGNKEY
+do_test without_rowid3-17.1.5 {
+  execsql {
+    INSERT INTO one VALUES(2, 3, 4);
+    INSERT INTO one VALUES(3, 4, 5);
+    INSERT INTO two VALUES(1, 2, 3);
+    INSERT INTO two VALUES(2, 3, 4);
+    INSERT INTO two VALUES(3, 4, 5);
+  }
+} {1 1 1 1 1}
+do_test without_rowid3-17.1.6 {
+  catchsql {
+    BEGIN;
+      INSERT INTO one VALUES(0, 0, 0);
+      UPDATE two SET e=e+1, f=f+1;
+  }
+} {1 {FOREIGN KEY constraint failed}}
+do_test without_rowid3-17.1.7 {
+  execsql { SELECT * FROM one }
+} {1 2 3 2 3 4 3 4 5 0 0 0}
+do_test without_rowid3-17.1.8 {
+  execsql { SELECT * FROM two }
+} {1 2 3 2 3 4 3 4 5}
+do_test without_rowid3-17.1.9 {
+  execsql COMMIT
+} {}
+do_test without_rowid3-17.1.10 {
+  execsql {
+    CREATE TABLE three(
+      g, h, i, 
+      FOREIGN KEY(h, i) REFERENCES one(b, c) DEFERRABLE INITIALLY DEFERRED
+    );
+  }
+} {}
+do_test without_rowid3-17.1.11 {
+  set STMT [sqlite3_prepare_v2 db "INSERT INTO three VALUES(7, 8, 9)" -1 dummy]
+  sqlite3_step $STMT
+} {SQLITE_ROW}
+do_test without_rowid3-17.1.12 {
+  sqlite3_column_text $STMT 0
+} {1}
+do_test without_rowid3-17.1.13 {
+  sqlite3_step $STMT
+} {SQLITE_CONSTRAINT}
+verify_ex_errcode without_rowid3-17.1.13b SQLITE_CONSTRAINT_FOREIGNKEY
+do_test without_rowid3-17.1.14 {
+  sqlite3_finalize $STMT
+} {SQLITE_CONSTRAINT}
+verify_ex_errcode without_rowid3-17.1.14b SQLITE_CONSTRAINT_FOREIGNKEY
+
+drop_all_tables
+do_test without_rowid3-17.2.1 {
+  execsql {
+    CREATE TABLE high("a'b!" PRIMARY KEY, b) WITHOUT rowid;
+    CREATE TABLE low(
+      c, 
+      "d&6" REFERENCES high ON UPDATE CASCADE ON DELETE CASCADE
+    );
+  }
+} {}
+do_test without_rowid3-17.2.2 {
+  execsql {
+    INSERT INTO high VALUES('a', 'b');
+    INSERT INTO low VALUES('b', 'a');
+  }
+  db changes
+} {1}
+set nTotal [db total_changes]
+do_test without_rowid3-17.2.3 {
+  execsql { UPDATE high SET "a'b!" = 'c' }
+} {1}
+do_test without_rowid3-17.2.4 {
+  db changes
+} {1}
+do_test without_rowid3-17.2.5 {
+  expr [db total_changes] - $nTotal
+} {2}
+do_test without_rowid3-17.2.6 {
+  execsql { SELECT * FROM high ; SELECT * FROM low }
+} {c b b c}
+do_test without_rowid3-17.2.7 {
+  execsql { DELETE FROM high }
+} {1}
+do_test without_rowid3-17.2.8 {
+  db changes
+} {1}
+do_test without_rowid3-17.2.9 {
+  expr [db total_changes] - $nTotal
+} {4}
+do_test without_rowid3-17.2.10 {
+  execsql { SELECT * FROM high ; SELECT * FROM low }
+} {}
+execsql { PRAGMA count_changes = 0 }
+
+#-------------------------------------------------------------------------
+# Test that the authorization callback works.
+#
+
+ifcapable auth {
+  do_test without_rowid3-18.1 {
+    execsql {
+      CREATE TABLE long(a, b PRIMARY KEY, c) WITHOUT rowid;
+      CREATE TABLE short(d, e, f REFERENCES long);
+      CREATE TABLE mid(g, h, i REFERENCES long DEFERRABLE INITIALLY DEFERRED);
+    }
+  } {}
+
+  proc auth {args} {eval lappend ::authargs [lrange $args 0 4]; return SQLITE_OK}
+  db auth auth
+
+  # An insert on the parent table must read the child key of any deferred
+  # foreign key constraints. But not the child key of immediate constraints.
+  set authargs {}
+  do_test without_rowid3-18.2 {
+    execsql { INSERT INTO long VALUES(1, 2, 3) }
+    set authargs
+  } {SQLITE_INSERT long {} main {} SQLITE_READ mid i main {}}
+
+  # An insert on the child table of an immediate constraint must read the
+  # parent key columns (to see if it is a violation or not).
+  set authargs {}
+  do_test without_rowid3-18.3 {
+    execsql { INSERT INTO short VALUES(1, 3, 2) }
+    set authargs
+  } {SQLITE_INSERT short {} main {} SQLITE_READ long b main {}}
+  
+  # As must an insert on the child table of a deferred constraint.
+  set authargs {}
+  do_test without_rowid3-18.4 {
+    execsql { INSERT INTO mid VALUES(1, 3, 2) }
+    set authargs
+  } {SQLITE_INSERT mid {} main {} SQLITE_READ long b main {}}
+
+  do_test without_rowid3-18.5 {
+    execsql {
+      CREATE TABLE nought(a, b PRIMARY KEY, c) WITHOUT rowid;
+      CREATE TABLE cross(d, e, f,
+        FOREIGN KEY(e) REFERENCES nought(b) ON UPDATE CASCADE
+      );
+    }
+    execsql { INSERT INTO nought VALUES(2, 1, 2) }
+    execsql { INSERT INTO cross VALUES(0, 1, 0) }
+    set authargs [list]
+    execsql { UPDATE nought SET b = 5 }
+    set authargs
+  } {SQLITE_UPDATE nought b main {} SQLITE_READ cross e main {} SQLITE_READ cross e main {} SQLITE_READ nought b main {} SQLITE_READ nought b main {} SQLITE_READ nought b main {} SQLITE_UPDATE cross e main {} SQLITE_READ nought b main {} SQLITE_READ cross e main {} SQLITE_READ nought b main {} SQLITE_READ nought b main {}}
+
+  do_test without_rowid3-18.6 {
+    execsql {SELECT * FROM cross}
+  } {0 5 0}
+
+  do_test without_rowid3-18.7 {
+    execsql {
+      CREATE TABLE one(a INT PRIMARY KEY, b) WITHOUT rowid;
+      CREATE TABLE two(b, c REFERENCES one);
+      INSERT INTO one VALUES(101, 102);
+    }
+    set authargs [list]
+    execsql { INSERT INTO two VALUES(100, 101); }
+    set authargs
+  } {SQLITE_INSERT two {} main {} SQLITE_READ one a main {}}
+
+  # Return SQLITE_IGNORE to requests to read from the parent table. This
+  # causes inserts of non-NULL keys into the child table to fail.
+  #
+  rename auth {}
+  proc auth {args} {
+    if {[lindex $args 1] == "long"} {return SQLITE_IGNORE}
+    return SQLITE_OK
+  }
+  do_test without_rowid3-18.8 {
+    catchsql { INSERT INTO short VALUES(1, 3, 2) }
+  } {1 {FOREIGN KEY constraint failed}}
+  do_test without_rowid3-18.9 {
+    execsql { INSERT INTO short VALUES(1, 3, NULL) }
+  } {}
+  do_test without_rowid3-18.10 {
+    execsql { SELECT * FROM short }
+  } {1 3 2 1 3 {}}
+  do_test without_rowid3-18.11 {
+    catchsql { UPDATE short SET f = 2 WHERE f IS NULL }
+  } {1 {FOREIGN KEY constraint failed}}
+
+  db auth {}
+  unset authargs
+}
+
+
+do_test without_rowid3-19.1 {
+  execsql {
+    CREATE TABLE main(id INT PRIMARY KEY) WITHOUT rowid;
+    CREATE TABLE sub(id INT REFERENCES main(id));
+    INSERT INTO main VALUES(1);
+    INSERT INTO main VALUES(2);
+    INSERT INTO sub VALUES(2);
+  }
+} {}
+do_test without_rowid3-19.2 {
+  set S [sqlite3_prepare_v2 db "DELETE FROM main WHERE id = ?" -1 dummy]
+  sqlite3_bind_int $S 1 2
+  sqlite3_step $S
+} {SQLITE_CONSTRAINT}
+verify_ex_errcode without_rowid3-19.2b SQLITE_CONSTRAINT_FOREIGNKEY
+do_test without_rowid3-19.3 {
+  sqlite3_reset $S
+} {SQLITE_CONSTRAINT}
+verify_ex_errcode without_rowid3-19.3b SQLITE_CONSTRAINT_FOREIGNKEY
+do_test without_rowid3-19.4 {
+  sqlite3_bind_int $S 1 1
+  sqlite3_step $S
+} {SQLITE_DONE}
+do_test without_rowid3-19.4 {
+  sqlite3_finalize $S
+} {SQLITE_OK}
+
+drop_all_tables
+do_test without_rowid3-20.1 {
+  execsql {
+    CREATE TABLE pp(a PRIMARY KEY, b) WITHOUT rowid;
+    CREATE TABLE cc(c PRIMARY KEY, d REFERENCES pp) WITHOUT rowid;
+  }
+} {}
+
+foreach {tn insert} {
+  1 "INSERT"
+  2 "INSERT OR IGNORE"
+  3 "INSERT OR ABORT"
+  4 "INSERT OR ROLLBACK"
+  5 "INSERT OR REPLACE"
+  6 "INSERT OR FAIL"
+} {
+  do_test without_rowid3-20.2.$tn.1 {
+    catchsql "$insert INTO cc VALUES(1, 2)"
+  } {1 {FOREIGN KEY constraint failed}}
+  do_test without_rowid3-20.2.$tn.2 {
+    execsql { SELECT * FROM cc }
+  } {}
+  do_test without_rowid3-20.2.$tn.3 {
+    execsql {
+      BEGIN;
+        INSERT INTO pp VALUES(2, 'two');
+        INSERT INTO cc VALUES(1, 2);
+    }
+    catchsql "$insert INTO cc VALUES(3, 4)"
+  } {1 {FOREIGN KEY constraint failed}}
+  do_test without_rowid3-20.2.$tn.4 {
+    execsql { COMMIT ; SELECT * FROM cc }
+  } {1 2}
+  do_test without_rowid3-20.2.$tn.5 {
+    execsql { DELETE FROM cc ; DELETE FROM pp }
+  } {}
+}
+
+foreach {tn update} {
+  1 "UPDATE"
+  2 "UPDATE OR IGNORE"
+  3 "UPDATE OR ABORT"
+  4 "UPDATE OR ROLLBACK"
+  5 "UPDATE OR REPLACE"
+  6 "UPDATE OR FAIL"
+} {
+  do_test without_rowid3-20.3.$tn.1 {
+    execsql {
+      INSERT INTO pp VALUES(2, 'two');
+      INSERT INTO cc VALUES(1, 2);
+    }
+  } {}
+  do_test without_rowid3-20.3.$tn.2 {
+    catchsql "$update pp SET a = 1"
+  } {1 {FOREIGN KEY constraint failed}}
+  do_test without_rowid3-20.3.$tn.3 {
+    execsql { SELECT * FROM pp }
+  } {2 two}
+  do_test without_rowid3-20.3.$tn.4 {
+    catchsql "$update cc SET d = 1"
+  } {1 {FOREIGN KEY constraint failed}}
+  do_test without_rowid3-20.3.$tn.5 {
+    execsql { SELECT * FROM cc }
+  } {1 2}
+  do_test without_rowid3-20.3.$tn.6 {
+    execsql {
+      BEGIN;
+        INSERT INTO pp VALUES(3, 'three');
+    }
+    catchsql "$update pp SET a = 1 WHERE a = 2"
+  } {1 {FOREIGN KEY constraint failed}}
+  do_test without_rowid3-20.3.$tn.7 {
+    execsql { COMMIT ; SELECT * FROM pp }
+  } {2 two 3 three}
+  do_test without_rowid3-20.3.$tn.8 {
+    execsql {
+      BEGIN;
+        INSERT INTO cc VALUES(2, 2);
+    }
+    catchsql "$update cc SET d = 1 WHERE c = 1"
+  } {1 {FOREIGN KEY constraint failed}}
+  do_test without_rowid3-20.3.$tn.9 {
+    execsql { COMMIT ; SELECT * FROM cc }
+  } {1 2 2 2}
+  do_test without_rowid3-20.3.$tn.10 {
+    execsql { DELETE FROM cc ; DELETE FROM pp }
+  } {}
+}
+
+#-------------------------------------------------------------------------
+# The following block of tests, those prefixed with "without_rowid3-genfkey.",
+# are the same tests that were used to test the ".genfkey" command provided 
+# by the shell tool. So these tests show that the built-in foreign key 
+# implementation is more or less compatible with the triggers generated 
+# by genfkey.
+#
+drop_all_tables
+do_test without_rowid3-genfkey.1.1 {
+  execsql {
+    CREATE TABLE t1(a INT PRIMARY KEY, b, c, UNIQUE(b, c)) WITHOUT rowid;
+    CREATE TABLE t2(e REFERENCES t1, f);
+    CREATE TABLE t3(g, h, i, FOREIGN KEY (h, i) REFERENCES t1(b, c));
+  }
+} {}
+do_test without_rowid3-genfkey.1.2 {
+  catchsql { INSERT INTO t2 VALUES(1, 2) }
+} {1 {FOREIGN KEY constraint failed}}
+do_test without_rowid3-genfkey.1.3 {
+  execsql {
+    INSERT INTO t1 VALUES(1, 2, 3);
+    INSERT INTO t2 VALUES(1, 2);
+  }
+} {}
+do_test without_rowid3-genfkey.1.4 {
+  execsql { INSERT INTO t2 VALUES(NULL, 3) }
+} {}
+do_test without_rowid3-genfkey.1.5 {
+  catchsql { UPDATE t2 SET e = 5 WHERE e IS NULL }
+} {1 {FOREIGN KEY constraint failed}}
+do_test without_rowid3-genfkey.1.6 {
+  execsql { UPDATE t2 SET e = 1 WHERE e IS NULL }
+} {}
+do_test without_rowid3-genfkey.1.7 {
+  execsql { UPDATE t2 SET e = NULL WHERE f = 3 }
+} {}
+do_test without_rowid3-genfkey.1.8 {
+  catchsql { UPDATE t1 SET a = 10 }
+} {1 {FOREIGN KEY constraint failed}}
+do_test without_rowid3-genfkey.1.9 {
+  catchsql { UPDATE t1 SET a = NULL }
+} {1 {NOT NULL constraint failed: t1.a}}
+do_test without_rowid3-genfkey.1.10 {
+  catchsql { DELETE FROM t1 }
+} {1 {FOREIGN KEY constraint failed}}
+do_test without_rowid3-genfkey.1.11 {
+  execsql { UPDATE t2 SET e = NULL }
+} {}
+do_test without_rowid3-genfkey.1.12 {
+  execsql { 
+    UPDATE t1 SET a = 10;
+    DELETE FROM t1;
+    DELETE FROM t2;
+  }
+} {}
+do_test without_rowid3-genfkey.1.13 {
+  execsql {
+    INSERT INTO t3 VALUES(1, NULL, NULL);
+    INSERT INTO t3 VALUES(1, 2, NULL);
+    INSERT INTO t3 VALUES(1, NULL, 3);
+  }
+} {}
+do_test without_rowid3-genfkey.1.14 {
+  catchsql { INSERT INTO t3 VALUES(3, 1, 4) }
+} {1 {FOREIGN KEY constraint failed}}
+do_test without_rowid3-genfkey.1.15 {
+  execsql { 
+    INSERT INTO t1 VALUES(1, 1, 4);
+    INSERT INTO t3 VALUES(3, 1, 4);
+  }
+} {}
+do_test without_rowid3-genfkey.1.16 {
+  catchsql { DELETE FROM t1 }
+} {1 {FOREIGN KEY constraint failed}}
+do_test without_rowid3-genfkey.1.17 {
+  catchsql { UPDATE t1 SET b = 10}
+} {1 {FOREIGN KEY constraint failed}}
+do_test without_rowid3-genfkey.1.18 {
+  execsql { UPDATE t1 SET a = 10}
+} {}
+do_test without_rowid3-genfkey.1.19 {
+  catchsql { UPDATE t3 SET h = 'hello' WHERE i = 3}
+} {1 {FOREIGN KEY constraint failed}}
+
+drop_all_tables
+do_test without_rowid3-genfkey.2.1 {
+  execsql {
+    CREATE TABLE t1(a INT PRIMARY KEY, b, c, UNIQUE(b, c)) WITHOUT rowid;
+    CREATE TABLE t2(e REFERENCES t1 ON UPDATE CASCADE ON DELETE CASCADE, f);
+    CREATE TABLE t3(g, h, i, 
+        FOREIGN KEY (h, i) 
+        REFERENCES t1(b, c) ON UPDATE CASCADE ON DELETE CASCADE
+    );
+  }
+} {}
+do_test without_rowid3-genfkey.2.2 {
+  execsql {
+    INSERT INTO t1 VALUES(1, 2, 3);
+    INSERT INTO t1 VALUES(4, 5, 6);
+    INSERT INTO t2 VALUES(1, 'one');
+    INSERT INTO t2 VALUES(4, 'four');
+  }
+} {}
+do_test without_rowid3-genfkey.2.3 {
+  execsql {
+    UPDATE t1 SET a = 2 WHERE a = 1;
+    SELECT * FROM t2;
+  }
+} {2 one 4 four}
+do_test without_rowid3-genfkey.2.4 {
+  execsql {
+    DELETE FROM t1 WHERE a = 4;
+    SELECT * FROM t2;
+  }
+} {2 one}
+
+do_test without_rowid3-genfkey.2.5 {
+  execsql {
+    INSERT INTO t3 VALUES('hello', 2, 3);
+    UPDATE t1 SET c = 2;
+    SELECT * FROM t3;
+  }
+} {hello 2 2}
+do_test without_rowid3-genfkey.2.6 {
+  execsql {
+    DELETE FROM t1;
+    SELECT * FROM t3;
+  }
+} {}
+
+drop_all_tables
+do_test without_rowid3-genfkey.3.1 {
+  execsql {
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c, UNIQUE(c, b)) WITHOUT rowid;
+    CREATE TABLE t2(e REFERENCES t1 ON UPDATE SET NULL ON DELETE SET NULL, f);
+    CREATE TABLE t3(g, h, i, 
+        FOREIGN KEY (h, i) 
+        REFERENCES t1(b, c) ON UPDATE SET NULL ON DELETE SET NULL
+    );
+  }
+} {}
+do_test without_rowid3-genfkey.3.2 {
+  execsql {
+    INSERT INTO t1 VALUES(1, 2, 3);
+    INSERT INTO t1 VALUES(4, 5, 6);
+    INSERT INTO t2 VALUES(1, 'one');
+    INSERT INTO t2 VALUES(4, 'four');
+  }
+} {}
+do_test without_rowid3-genfkey.3.3 {
+  execsql {
+    UPDATE t1 SET a = 2 WHERE a = 1;
+    SELECT * FROM t2;
+  }
+} {{} one 4 four}
+do_test without_rowid3-genfkey.3.4 {
+  execsql {
+    DELETE FROM t1 WHERE a = 4;
+    SELECT * FROM t2;
+  }
+} {{} one {} four}
+do_test without_rowid3-genfkey.3.5 {
+  execsql {
+    INSERT INTO t3 VALUES('hello', 2, 3);
+    UPDATE t1 SET c = 2;
+    SELECT * FROM t3;
+  }
+} {hello {} {}}
+do_test without_rowid3-genfkey.3.6 {
+  execsql {
+    UPDATE t3 SET h = 2, i = 2;
+    DELETE FROM t1;
+    SELECT * FROM t3;
+  }
+} {hello {} {}}
+
+#-------------------------------------------------------------------------
+# Verify that ticket dd08e5a988d00decc4a543daa8dbbfab9c577ad8 has been
+# fixed.
+#
+do_test without_rowid3-dd08e5.1.1 {
+  execsql {
+    PRAGMA foreign_keys=ON;
+    CREATE TABLE tdd08(a INTEGER PRIMARY KEY, b) WITHOUT rowid;
+    CREATE UNIQUE INDEX idd08 ON tdd08(a,b);
+    INSERT INTO tdd08 VALUES(200,300);
+
+    CREATE TABLE tdd08_b(w,x,y, FOREIGN KEY(x,y) REFERENCES tdd08(a,b));
+    INSERT INTO tdd08_b VALUES(100,200,300);
+  }
+} {}
+do_test without_rowid3-dd08e5.1.2 {
+  catchsql {
+    DELETE FROM tdd08;
+  }
+} {1 {FOREIGN KEY constraint failed}}
+do_test without_rowid3-dd08e5.1.3 {
+  execsql {
+    SELECT * FROM tdd08;
+  }
+} {200 300}
+do_test without_rowid3-dd08e5.1.4 {
+  catchsql {
+    INSERT INTO tdd08_b VALUES(400,500,300);
+  }
+} {1 {FOREIGN KEY constraint failed}}
+do_test without_rowid3-dd08e5.1.5 {
+  catchsql {
+    UPDATE tdd08_b SET x=x+1;
+  }
+} {1 {FOREIGN KEY constraint failed}}
+do_test without_rowid3-dd08e5.1.6 {
+  catchsql {
+    UPDATE tdd08 SET a=a+1;
+  }
+} {1 {FOREIGN KEY constraint failed}}
+
+#-------------------------------------------------------------------------
+# Verify that ticket ce7c133ea6cc9ccdc1a60d80441f80b6180f5eba
+# fixed.
+#
+do_test without_rowid3-ce7c13.1.1 {
+  execsql {
+    CREATE TABLE tce71(a INTEGER PRIMARY KEY, b) WITHOUT rowid;
+    CREATE UNIQUE INDEX ice71 ON tce71(a,b);
+    INSERT INTO tce71 VALUES(100,200);
+    CREATE TABLE tce72(w, x, y, FOREIGN KEY(x,y) REFERENCES tce71(a,b));
+    INSERT INTO tce72 VALUES(300,100,200);
+    UPDATE tce71 set b = 200 where a = 100;
+    SELECT * FROM tce71, tce72;
+  }
+} {100 200 300 100 200}
+do_test without_rowid3-ce7c13.1.2 {
+  catchsql {
+    UPDATE tce71 set b = 201 where a = 100;
+  }
+} {1 {FOREIGN KEY constraint failed}}
+do_test without_rowid3-ce7c13.1.3 {
+  catchsql {
+    UPDATE tce71 set a = 101 where a = 100;
+  }
+} {1 {FOREIGN KEY constraint failed}}
+do_test without_rowid3-ce7c13.1.4 {
+  execsql {
+    CREATE TABLE tce73(a INTEGER PRIMARY KEY, b, UNIQUE(a,b)) WITHOUT rowid;
+    INSERT INTO tce73 VALUES(100,200);
+    CREATE TABLE tce74(w, x, y, FOREIGN KEY(x,y) REFERENCES tce73(a,b));
+    INSERT INTO tce74 VALUES(300,100,200);
+    UPDATE tce73 set b = 200 where a = 100;
+    SELECT * FROM tce73, tce74;
+  }
+} {100 200 300 100 200}
+do_test without_rowid3-ce7c13.1.5 {
+  catchsql {
+    UPDATE tce73 set b = 201 where a = 100;
+  }
+} {1 {FOREIGN KEY constraint failed}}
+do_test without_rowid3-ce7c13.1.6 {
+  catchsql {
+    UPDATE tce73 set a = 101 where a = 100;
+  }
+} {1 {FOREIGN KEY constraint failed}}
+
+# Confirm that changes() works on WITHOUT ROWID tables that use the
+# xfer optimization.
+#
+db close
+sqlite3 db :memory:
+do_execsql_test without_rowid3-30.1 {
+  CREATE TABLE t1(a,b,PRIMARY KEY(a,b)) WITHOUT ROWID;
+  CREATE TABLE t2(a,b,PRIMARY KEY(a,b)) WITHOUT ROWID;
+  INSERT INTO t1 VALUES(1,2),(3,4),(5,6);
+  SELECT changes();
+} {3}
+do_execsql_test without_rowid3-30.2 {
+  INSERT INTO t2 SELECT * FROM t1;
+  SELECT changes();
+} {3}
+
+finish_test
diff --git a/test/without_rowid4.test b/test/without_rowid4.test
new file mode 100644
index 0000000000000000000000000000000000000000..d8c2d69fe9b4e661f1a5bfdad3a775cfa9c76737
--- /dev/null
+++ b/test/without_rowid4.test
@@ -0,0 +1,764 @@
+# 2013-11-04
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Regression testing of FOR EACH ROW table triggers on WITHOUT ROWID
+# tables.
+#
+# 1. Trigger execution order tests. 
+# These tests ensure that BEFORE and AFTER triggers are fired at the correct
+# times relative to each other and the triggering statement. 
+#
+# without_rowid4-1.1.*: ON UPDATE trigger execution model.
+# without_rowid4-1.2.*: DELETE trigger execution model.
+# without_rowid4-1.3.*: INSERT trigger execution model.
+#
+# 2. Trigger program execution tests.
+# These tests ensure that trigger programs execute correctly (ie. that a
+# trigger program can correctly execute INSERT, UPDATE, DELETE * SELECT
+# statements, and combinations thereof).
+#
+# 3. Selective trigger execution 
+# This tests that conditional triggers (ie. UPDATE OF triggers and triggers
+# with WHEN clauses) are fired only fired when they are supposed to be.
+#
+# without_rowid4-3.1: UPDATE OF triggers
+# without_rowid4-3.2: WHEN clause
+#
+# 4. Cascaded trigger execution 
+# Tests that trigger-programs may cause other triggers to fire. Also that a 
+# trigger-program is never executed recursively.
+# 
+# without_rowid4-4.1: Trivial cascading trigger
+# without_rowid4-4.2: Trivial recursive trigger handling 
+#
+# 5. Count changes behaviour.
+# Verify that rows altered by triggers are not included in the return value
+# of the "count changes" interface.
+#
+# 6. ON CONFLICT clause handling
+# without_rowid4-6.1[a-f]: INSERT statements
+# without_rowid4-6.2[a-f]: UPDATE statements
+#
+# 7. & 8. Triggers on views fire correctly.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable {!trigger} {
+  finish_test
+  return
+}
+
+# The tests in this file were written before SQLite supported recursive
+# trigger invocation, and some tests depend on that to pass. So disable
+# recursive triggers for this file.
+catchsql { pragma recursive_triggers = off } 
+
+# 1.
+ifcapable subquery {
+  set ii 0
+  set tbl_definitions [list \
+  	{CREATE TABLE tbl (a INTEGER PRIMARY KEY, b) WITHOUT rowid;}    \
+        {CREATE TABLE tbl (a, b PRIMARY KEY) WITHOUT rowid;}            \
+  	{CREATE TABLE tbl (a PRIMARY KEY, b) WITHOUT rowid;
+         CREATE INDEX tbl_idx ON tbl(b);}      \
+  ]
+  ifcapable tempdb {
+    lappend tbl_definitions \
+        {CREATE TEMP TABLE tbl (a PRIMARY KEY, b) WITHOUT rowid;
+         CREATE INDEX tbl_idx ON tbl(b);} 
+    lappend tbl_definitions \
+        {CREATE TEMP TABLE tbl (a PRIMARY KEY, b) WITHOUT rowid}
+    lappend tbl_definitions \
+        {CREATE TEMPORARY TABLE tbl (a INTEGER PRIMARY KEY, b) WITHOUT rowid;}
+  }
+  foreach tbl_defn $tbl_definitions {
+    incr ii
+    catchsql { DROP INDEX tbl_idx; }
+    catchsql {
+      DROP TABLE rlog;
+      DROP TABLE clog;
+      DROP TABLE tbl;
+      DROP TABLE other_tbl;
+    }
+  
+    execsql $tbl_defn
+  
+    execsql {
+      INSERT INTO tbl VALUES(1, 2);
+      INSERT INTO tbl VALUES(3, 4);
+  
+      CREATE TABLE rlog (idx, old_a, old_b, db_sum_a, db_sum_b, new_a, new_b);
+      CREATE TABLE clog (idx, old_a, old_b, db_sum_a, db_sum_b, new_a, new_b);
+  
+      CREATE TRIGGER before_update_row BEFORE UPDATE ON tbl FOR EACH ROW 
+        BEGIN
+        INSERT INTO rlog VALUES ( (SELECT coalesce(max(idx),0) + 1 FROM rlog), 
+  	  old.a, old.b, 
+  	  (SELECT coalesce(sum(a),0) FROM tbl),
+          (SELECT coalesce(sum(b),0) FROM tbl), 
+  	  new.a, new.b);
+      END;
+  
+      CREATE TRIGGER after_update_row AFTER UPDATE ON tbl FOR EACH ROW 
+        BEGIN
+        INSERT INTO rlog VALUES ( (SELECT coalesce(max(idx),0) + 1 FROM rlog), 
+  	  old.a, old.b, 
+  	  (SELECT coalesce(sum(a),0) FROM tbl),
+          (SELECT coalesce(sum(b),0) FROM tbl), 
+  	  new.a, new.b);
+      END;
+  
+      CREATE TRIGGER conditional_update_row AFTER UPDATE ON tbl FOR EACH ROW
+        WHEN old.a = 1
+        BEGIN
+        INSERT INTO clog VALUES ( (SELECT coalesce(max(idx),0) + 1 FROM clog), 
+  	  old.a, old.b, 
+  	  (SELECT coalesce(sum(a),0) FROM tbl),
+          (SELECT coalesce(sum(b),0) FROM tbl), 
+  	  new.a, new.b);
+      END;
+    }
+  
+    do_test without_rowid4-1.$ii.1 {
+      set r {}
+      foreach v [execsql { 
+        UPDATE tbl SET a = a * 10, b = b * 10;
+        SELECT * FROM rlog ORDER BY idx;
+        SELECT * FROM clog ORDER BY idx;
+      }] {
+        lappend r [expr {int($v)}]
+      }
+      set r
+    } [list 1 1 2  4  6 10 20 \
+            2 1 2 13 24 10 20 \
+  	    3 3 4 13 24 30 40 \
+  	    4 3 4 40 60 30 40 \
+            1 1 2 13 24 10 20 ]
+  
+    execsql {
+      DELETE FROM rlog;
+      DELETE FROM tbl;
+      INSERT INTO tbl VALUES (100, 100);
+      INSERT INTO tbl VALUES (300, 200);
+      CREATE TRIGGER delete_before_row BEFORE DELETE ON tbl FOR EACH ROW
+        BEGIN
+        INSERT INTO rlog VALUES ( (SELECT coalesce(max(idx),0) + 1 FROM rlog), 
+  	  old.a, old.b, 
+  	  (SELECT coalesce(sum(a),0) FROM tbl),
+          (SELECT coalesce(sum(b),0) FROM tbl), 
+  	  0, 0);
+      END;
+  
+      CREATE TRIGGER delete_after_row AFTER DELETE ON tbl FOR EACH ROW
+        BEGIN
+        INSERT INTO rlog VALUES ( (SELECT coalesce(max(idx),0) + 1 FROM rlog), 
+  	  old.a, old.b, 
+  	  (SELECT coalesce(sum(a),0) FROM tbl),
+          (SELECT coalesce(sum(b),0) FROM tbl), 
+  	  0, 0);
+      END;
+    }
+    do_test without_rowid4-1.$ii.2 {
+      set r {}
+      foreach v [execsql {
+        DELETE FROM tbl;
+        SELECT * FROM rlog;
+      }] {
+        lappend r [expr {int($v)}]
+      }
+      set r
+    } [list 1 100 100 400 300 0 0 \
+            2 100 100 300 200 0 0 \
+            3 300 200 300 200 0 0 \
+            4 300 200 0 0 0 0 ]
+  
+    execsql {
+      DELETE FROM rlog;
+      CREATE TRIGGER insert_before_row BEFORE INSERT ON tbl FOR EACH ROW
+        BEGIN
+        INSERT INTO rlog VALUES ( (SELECT coalesce(max(idx),0) + 1 FROM rlog), 
+  	  0, 0,
+  	  (SELECT coalesce(sum(a),0) FROM tbl),
+          (SELECT coalesce(sum(b),0) FROM tbl), 
+  	  new.a, new.b);
+      END;
+  
+      CREATE TRIGGER insert_after_row AFTER INSERT ON tbl FOR EACH ROW
+        BEGIN
+        INSERT INTO rlog VALUES ( (SELECT coalesce(max(idx),0) + 1 FROM rlog), 
+  	  0, 0,
+  	  (SELECT coalesce(sum(a),0) FROM tbl),
+          (SELECT coalesce(sum(b),0) FROM tbl), 
+  	  new.a, new.b);
+      END;
+    }
+    do_test without_rowid4-1.$ii.3 {
+      execsql {
+  
+        CREATE TABLE other_tbl(a, b);
+        INSERT INTO other_tbl VALUES(1, 2);
+        INSERT INTO other_tbl VALUES(3, 4);
+        -- INSERT INTO tbl SELECT * FROM other_tbl;
+        INSERT INTO tbl VALUES(5, 6);
+        DROP TABLE other_tbl;
+  
+        SELECT * FROM rlog;
+      }
+    } [list 1 0 0 0 0 5 6 \
+            2 0 0 5 6 5 6 ]
+  
+    integrity_check without_rowid4-1.$ii.4
+  }
+  catchsql {
+    DROP TABLE rlog;
+    DROP TABLE clog;
+    DROP TABLE tbl;
+    DROP TABLE other_tbl;
+  }
+}
+
+# 2.
+set ii 0
+foreach tr_program {
+  {UPDATE tbl SET b = old.b;}
+  {INSERT INTO log VALUES(new.c, 2, 3);}
+  {DELETE FROM log WHERE a = 1;}
+  {INSERT INTO tbl VALUES(500, new.b * 10, 700); 
+    UPDATE tbl SET c = old.c; 
+    DELETE FROM log;}
+  {INSERT INTO log select * from tbl;} 
+} {
+  foreach test_varset [ list \
+    {
+      set statement {UPDATE tbl SET c = 10 WHERE a = 1;} 
+      set prep      {INSERT INTO tbl VALUES(1, 2, 3);}
+      set newC 10
+      set newB 2
+      set newA 1
+      set oldA 1
+      set oldB 2
+      set oldC 3
+    } \
+    {
+      set statement {DELETE FROM tbl WHERE a = 1;}
+      set prep      {INSERT INTO tbl VALUES(1, 2, 3);}
+      set oldA 1
+      set oldB 2
+      set oldC 3
+    } \
+    {
+      set statement {INSERT INTO tbl VALUES(1, 2, 3);}
+      set newA 1
+      set newB 2
+      set newC 3
+    }
+  ] \
+  {
+    set statement {}
+    set prep {}
+    set newA {''}
+    set newB {''}
+    set newC {''}
+    set oldA {''}
+    set oldB {''}
+    set oldC {''}
+
+    incr ii
+
+    eval $test_varset
+
+    set statement_type [string range $statement 0 5]
+    set tr_program_fixed $tr_program
+    if {$statement_type == "DELETE"} {
+      regsub -all new\.a $tr_program_fixed {''} tr_program_fixed 
+      regsub -all new\.b $tr_program_fixed {''} tr_program_fixed 
+      regsub -all new\.c $tr_program_fixed {''} tr_program_fixed 
+    }
+    if {$statement_type == "INSERT"} {
+      regsub -all old\.a $tr_program_fixed {''} tr_program_fixed 
+      regsub -all old\.b $tr_program_fixed {''} tr_program_fixed 
+      regsub -all old\.c $tr_program_fixed {''} tr_program_fixed 
+    }
+
+
+    set tr_program_cooked $tr_program
+    regsub -all new\.a $tr_program_cooked $newA tr_program_cooked 
+    regsub -all new\.b $tr_program_cooked $newB tr_program_cooked 
+    regsub -all new\.c $tr_program_cooked $newC tr_program_cooked 
+    regsub -all old\.a $tr_program_cooked $oldA tr_program_cooked 
+    regsub -all old\.b $tr_program_cooked $oldB tr_program_cooked 
+    regsub -all old\.c $tr_program_cooked $oldC tr_program_cooked 
+
+    catchsql {
+      DROP TABLE tbl;
+      DROP TABLE log;
+    }
+
+    execsql {
+      CREATE TABLE tbl(a PRIMARY KEY, b, c) WITHOUT rowid;
+      CREATE TABLE log(a, b, c);
+    }
+
+    set query {SELECT * FROM tbl; SELECT * FROM log;}
+    set prep "$prep; INSERT INTO log VALUES(1, 2, 3);\
+             INSERT INTO log VALUES(10, 20, 30);"
+
+# Check execution of BEFORE programs:
+
+    set before_data [ execsql "$prep $tr_program_cooked $statement $query" ]
+
+    execsql "DELETE FROM tbl; DELETE FROM log; $prep";
+    execsql "CREATE TRIGGER the_trigger BEFORE [string range $statement 0 6]\
+             ON tbl BEGIN $tr_program_fixed END;"
+
+    do_test without_rowid4-2.$ii-before "execsql {$statement $query}" $before_data
+
+    execsql "DROP TRIGGER the_trigger;"
+    execsql "DELETE FROM tbl; DELETE FROM log;"
+
+# Check execution of AFTER programs
+    set after_data [ execsql "$prep $statement $tr_program_cooked $query" ]
+
+    execsql "DELETE FROM tbl; DELETE FROM log; $prep";
+    execsql "CREATE TRIGGER the_trigger AFTER [string range $statement 0 6]\
+             ON tbl BEGIN $tr_program_fixed END;"
+
+    do_test without_rowid4-2.$ii-after "execsql {$statement $query}" $after_data
+    execsql "DROP TRIGGER the_trigger;"
+
+    integrity_check without_rowid4-2.$ii-integrity
+  }
+}
+catchsql {
+  DROP TABLE tbl;
+  DROP TABLE log;
+}
+
+# 3.
+
+# without_rowid4-3.1: UPDATE OF triggers
+execsql {
+  CREATE TABLE tbl (a, b, c, d, PRIMARY KEY(a,b,c,d)) WITHOUT rowid;
+  CREATE TABLE log (a);
+  INSERT INTO log VALUES (0);
+  INSERT INTO tbl VALUES (0, 0, 0, 0);
+  INSERT INTO tbl VALUES (1, 0, 0, 0);
+  CREATE TRIGGER tbl_after_update_cd BEFORE UPDATE OF c, d ON tbl
+    BEGIN
+      UPDATE log SET a = a + 1;
+    END;
+}
+do_test without_rowid4-3.1 {
+  execsql {
+    UPDATE tbl SET b = 1, c = 10; -- 2
+    UPDATE tbl SET b = 10; -- 0
+    UPDATE tbl SET d = 4 WHERE a = 0; --1
+    UPDATE tbl SET a = 4, b = 10; --0
+    SELECT * FROM log;
+  }
+} {3}
+execsql {
+  DROP TABLE tbl;
+  DROP TABLE log;
+}
+
+# without_rowid4-3.2: WHEN clause
+set when_triggers [list {t1 BEFORE INSERT ON tbl WHEN new.a > 20}]
+ifcapable subquery {
+  lappend when_triggers \
+      {t2 BEFORE INSERT ON tbl WHEN (SELECT count(*) FROM tbl) = 0}
+}
+
+execsql {
+  CREATE TABLE tbl (a, b, c, d);
+  CREATE TABLE log (a);
+  INSERT INTO log VALUES (0);
+}
+
+foreach trig $when_triggers {
+  execsql "CREATE TRIGGER $trig BEGIN UPDATE log set a = a + 1; END;"
+}
+
+ifcapable subquery {
+  set t232 {1 0 1}
+} else {
+  set t232 {0 0 1}
+}
+do_test without_rowid4-3.2 {
+  execsql { 
+
+    INSERT INTO tbl VALUES(0, 0, 0, 0);     -- 1 (ifcapable subquery)
+    SELECT * FROM log;
+    UPDATE log SET a = 0;
+
+    INSERT INTO tbl VALUES(0, 0, 0, 0);     -- 0
+    SELECT * FROM log;
+    UPDATE log SET a = 0;
+
+    INSERT INTO tbl VALUES(200, 0, 0, 0);     -- 1
+    SELECT * FROM log;
+    UPDATE log SET a = 0;
+  }
+} $t232
+execsql {
+  DROP TABLE tbl;
+  DROP TABLE log;
+}
+integrity_check without_rowid4-3.3
+
+# Simple cascaded trigger
+execsql {
+  CREATE TABLE tblA(a, b, PRIMARY KEY(a,b)) WITHOUT rowid;
+  CREATE TABLE tblB(a, b, PRIMARY KEY(a,b)) WITHOUT rowid;
+  CREATE TABLE tblC(a, b, PRIMARY KEY(a,b)) WITHOUT rowid;
+
+  CREATE TRIGGER tr1 BEFORE INSERT ON tblA BEGIN
+    INSERT INTO tblB values(new.a, new.b);
+  END;
+
+  CREATE TRIGGER tr2 BEFORE INSERT ON tblB BEGIN
+    INSERT INTO tblC values(new.a, new.b);
+  END;
+}
+do_test without_rowid4-4.1 {
+  execsql {
+    INSERT INTO tblA values(1, 2);
+    SELECT * FROM tblA;
+    SELECT * FROM tblB;
+    SELECT * FROM tblC;
+  }
+} {1 2 1 2 1 2}
+execsql {
+  DROP TABLE tblA;
+  DROP TABLE tblB;
+  DROP TABLE tblC;
+}
+
+# Simple recursive trigger
+execsql {
+  CREATE TABLE tbl(a, b, c, PRIMARY KEY(c,a,b)) WITHOUT rowid;
+  CREATE TRIGGER tbl_trig BEFORE INSERT ON tbl 
+    BEGIN
+      INSERT INTO tbl VALUES (new.a, new.b, new.c+1);
+    END;
+}
+do_test without_rowid4-4.2 {
+  execsql {
+    INSERT INTO tbl VALUES (1, 2, 3);
+    select * from tbl;
+  }
+} {1 2 3 1 2 4}
+execsql {
+  DROP TABLE tbl;
+}
+
+# 5.
+execsql {
+  CREATE TABLE tbl(a, b, c, PRIMARY KEY(c,a,b)) WITHOUT rowid;
+  CREATE TRIGGER tbl_trig BEFORE INSERT ON tbl 
+    BEGIN
+      INSERT INTO tbl VALUES (1, 2, 3);
+      INSERT INTO tbl VALUES (2, 2, 3);
+      UPDATE tbl set b = 10 WHERE a = 1;
+      DELETE FROM tbl WHERE a = 1;
+      DELETE FROM tbl;
+    END;
+}
+do_test without_rowid4-5 {
+  execsql {
+    INSERT INTO tbl VALUES(100, 200, 300);
+  }
+  db changes
+} {1}
+execsql {
+  DROP TABLE tbl;
+}
+
+ifcapable conflict {
+  # Handling of ON CONFLICT by INSERT statements inside triggers
+  execsql {
+    CREATE TABLE tbl (a PRIMARY KEY, b, c) WITHOUT rowid;
+    CREATE TRIGGER ai_tbl AFTER INSERT ON tbl BEGIN
+      INSERT OR IGNORE INTO tbl values (new.a, 0, 0);
+    END;
+  }
+  do_test without_rowid4-6.1a {
+    execsql {
+      BEGIN;
+      INSERT INTO tbl values (1, 2, 3);
+      SELECT * from tbl;
+    }
+  } {1 2 3}
+  do_test without_rowid4-6.1b {
+    catchsql {
+      INSERT OR ABORT INTO tbl values (2, 2, 3);
+    }
+  } {1 {UNIQUE constraint failed: tbl.a}}
+  do_test without_rowid4-6.1c {
+    execsql {
+      SELECT * from tbl;
+    }
+  } {1 2 3}
+  do_test without_rowid4-6.1d {
+    catchsql {
+      INSERT OR FAIL INTO tbl values (2, 2, 3);
+    }
+  } {1 {UNIQUE constraint failed: tbl.a}}
+  do_test without_rowid4-6.1e {
+    execsql {
+      SELECT * from tbl;
+    }
+  } {1 2 3 2 2 3}
+  do_test without_rowid4-6.1f {
+    execsql {
+      INSERT OR REPLACE INTO tbl values (2, 2, 3);
+      SELECT * from tbl;
+    }
+  } {1 2 3 2 0 0}
+  do_test without_rowid4-6.1g {
+    catchsql {
+      INSERT OR ROLLBACK INTO tbl values (3, 2, 3);
+    }
+  } {1 {UNIQUE constraint failed: tbl.a}}
+  do_test without_rowid4-6.1h {
+    execsql {
+      SELECT * from tbl;
+    }
+  } {}
+  execsql {DELETE FROM tbl}
+  
+  
+  # Handling of ON CONFLICT by UPDATE statements inside triggers
+  execsql {
+    INSERT INTO tbl values (4, 2, 3);
+    INSERT INTO tbl values (6, 3, 4);
+    CREATE TRIGGER au_tbl AFTER UPDATE ON tbl BEGIN
+      UPDATE OR IGNORE tbl SET a = new.a, c = 10;
+    END;
+  }
+  do_test without_rowid4-6.2a {
+    execsql {
+      BEGIN;
+      UPDATE tbl SET a = 1 WHERE a = 4;
+      SELECT * from tbl;
+    }
+  } {1 2 10 6 3 4}
+  do_test without_rowid4-6.2b {
+    catchsql {
+      UPDATE OR ABORT tbl SET a = 4 WHERE a = 1;
+    }
+  } {1 {UNIQUE constraint failed: tbl.a}}
+  do_test without_rowid4-6.2c {
+    execsql {
+      SELECT * from tbl;
+    }
+  } {1 2 10 6 3 4}
+  do_test without_rowid4-6.2d {
+    catchsql {
+      UPDATE OR FAIL tbl SET a = 4 WHERE a = 1;
+    }
+  } {1 {UNIQUE constraint failed: tbl.a}}
+  do_test without_rowid4-6.2e {
+    execsql {
+      SELECT * from tbl;
+    }
+  } {4 2 10 6 3 4}
+  do_test without_rowid4-6.2f.1 {
+    execsql {
+      UPDATE OR REPLACE tbl SET a = 1 WHERE a = 4;
+      SELECT * from tbl;
+    }
+  } {1 3 10}
+  do_test without_rowid4-6.2f.2 {
+    execsql {
+      INSERT INTO tbl VALUES (2, 3, 4);
+      SELECT * FROM tbl;
+    }
+  } {1 3 10 2 3 4}
+  do_test without_rowid4-6.2g {
+    catchsql {
+      UPDATE OR ROLLBACK tbl SET a = 4 WHERE a = 1;
+    }
+  } {1 {UNIQUE constraint failed: tbl.a}}
+  do_test without_rowid4-6.2h {
+    execsql {
+      SELECT * from tbl;
+    }
+  } {4 2 3 6 3 4}
+  execsql {
+    DROP TABLE tbl;
+  }
+} ; # ifcapable conflict
+
+# 7. Triggers on views
+ifcapable view {
+
+do_test without_rowid4-7.1 {
+  execsql {
+  CREATE TABLE ab(a, b, PRIMARY KEY(a,b)) WITHOUT rowid;
+  CREATE TABLE cd(c, d, PRIMARY KEY(c,d)) WITHOUT rowid;
+  INSERT INTO ab VALUES (1, 2);
+  INSERT INTO ab VALUES (0, 0);
+  INSERT INTO cd VALUES (3, 4);
+
+  CREATE TABLE tlog(ii INTEGER PRIMARY KEY, 
+      olda, oldb, oldc, oldd, newa, newb, newc, newd);
+
+  CREATE VIEW abcd AS SELECT a, b, c, d FROM ab, cd;
+
+  CREATE TRIGGER before_update INSTEAD OF UPDATE ON abcd BEGIN
+    INSERT INTO tlog VALUES(NULL, 
+	old.a, old.b, old.c, old.d, new.a, new.b, new.c, new.d);
+  END;
+  CREATE TRIGGER after_update INSTEAD OF UPDATE ON abcd BEGIN
+    INSERT INTO tlog VALUES(NULL, 
+	old.a, old.b, old.c, old.d, new.a, new.b, new.c, new.d);
+  END;
+
+  CREATE TRIGGER before_delete INSTEAD OF DELETE ON abcd BEGIN
+    INSERT INTO tlog VALUES(NULL, 
+	old.a, old.b, old.c, old.d, 0, 0, 0, 0);
+  END;
+  CREATE TRIGGER after_delete INSTEAD OF DELETE ON abcd BEGIN
+    INSERT INTO tlog VALUES(NULL, 
+	old.a, old.b, old.c, old.d, 0, 0, 0, 0);
+  END;
+
+  CREATE TRIGGER before_insert INSTEAD OF INSERT ON abcd BEGIN
+    INSERT INTO tlog VALUES(NULL, 
+	0, 0, 0, 0, new.a, new.b, new.c, new.d);
+  END;
+   CREATE TRIGGER after_insert INSTEAD OF INSERT ON abcd BEGIN
+    INSERT INTO tlog VALUES(NULL, 
+	0, 0, 0, 0, new.a, new.b, new.c, new.d);
+   END;
+  }
+} {};
+
+do_test without_rowid4-7.2 {
+  execsql {
+    UPDATE abcd SET a = 100, b = 5*5 WHERE a = 1;
+    DELETE FROM abcd WHERE a = 1;
+    INSERT INTO abcd VALUES(10, 20, 30, 40);
+    SELECT * FROM tlog;
+  }
+} [ list 1 1 2 3 4 100 25 3 4 \
+         2 1 2 3 4 100 25 3 4 \
+	 3 1 2 3 4 0 0 0 0 \
+	 4 1 2 3 4 0 0 0 0 \
+	 5 0 0 0 0 10 20 30 40 \
+	 6 0 0 0 0 10 20 30 40 ]
+
+do_test without_rowid4-7.3 {
+  execsql {
+    DELETE FROM tlog;
+    INSERT INTO abcd VALUES(10, 20, 30, 40);
+    UPDATE abcd SET a = 100, b = 5*5 WHERE a = 1;
+    DELETE FROM abcd WHERE a = 1;
+    SELECT * FROM tlog;
+  }
+} [ list \
+   1 0 0 0 0 10 20 30 40 \
+   2 0 0 0 0 10 20 30 40 \
+   3 1 2 3 4 100 25 3 4 \
+   4 1 2 3 4 100 25 3 4 \
+   5 1 2 3 4 0 0 0 0 \
+   6 1 2 3 4 0 0 0 0 \
+]
+do_test without_rowid4-7.4 {
+  execsql {
+    DELETE FROM tlog;
+    DELETE FROM abcd WHERE a = 1;
+    INSERT INTO abcd VALUES(10, 20, 30, 40);
+    UPDATE abcd SET a = 100, b = 5*5 WHERE a = 1;
+    SELECT * FROM tlog;
+  }
+} [ list \
+   1 1 2 3 4 0 0 0 0 \
+   2 1 2 3 4 0 0 0 0 \
+   3 0 0 0 0 10 20 30 40 \
+   4 0 0 0 0 10 20 30 40 \
+   5 1 2 3 4 100 25 3 4 \
+   6 1 2 3 4 100 25 3 4 \
+]
+
+do_test without_rowid4-8.1 {
+  execsql {
+    CREATE TABLE t1(a,b,c, PRIMARY KEY(a,b,c)) WITHOUT rowid;
+    INSERT INTO t1 VALUES(1,2,3);
+    CREATE VIEW v1 AS
+      SELECT a+b AS x, b+c AS y, a+c AS z FROM t1;
+    SELECT * FROM v1;
+  }
+} {3 5 4}
+do_test without_rowid4-8.2 {
+  execsql {
+    CREATE TABLE v1log(a,b,c,d,e,f);
+    CREATE TRIGGER r1 INSTEAD OF DELETE ON v1 BEGIN
+      INSERT INTO v1log VALUES(OLD.x,NULL,OLD.y,NULL,OLD.z,NULL);
+    END;
+    DELETE FROM v1 WHERE x=1;
+    SELECT * FROM v1log;
+  }
+} {}
+do_test without_rowid4-8.3 {
+  execsql {
+    DELETE FROM v1 WHERE x=3;
+    SELECT * FROM v1log;
+  }
+} {3 {} 5 {} 4 {}}
+do_test without_rowid4-8.4 {
+  execsql {
+    INSERT INTO t1 VALUES(4,5,6);
+    DELETE FROM v1log;
+    DELETE FROM v1 WHERE y=11;
+    SELECT * FROM v1log;
+  }
+} {9 {} 11 {} 10 {}}
+do_test without_rowid4-8.5 {
+  execsql {
+    CREATE TRIGGER r2 INSTEAD OF INSERT ON v1 BEGIN
+      INSERT INTO v1log VALUES(NULL,NEW.x,NULL,NEW.y,NULL,NEW.z);
+    END;
+    DELETE FROM v1log;
+    INSERT INTO v1 VALUES(1,2,3);
+    SELECT * FROM v1log;
+  }
+} {{} 1 {} 2 {} 3}
+do_test without_rowid4-8.6 {
+  execsql {
+    CREATE TRIGGER r3 INSTEAD OF UPDATE ON v1 BEGIN
+      INSERT INTO v1log VALUES(OLD.x,NEW.x,OLD.y,NEW.y,OLD.z,NEW.z);
+    END;
+    DELETE FROM v1log;
+    UPDATE v1 SET x=x+100, y=y+200, z=z+300;
+    SELECT * FROM v1log;
+  }
+} {3 103 5 205 4 304 9 109 11 211 10 310}
+
+# At one point the following was causing a segfault.
+do_test without_rowid4-9.1 {
+  execsql {
+    CREATE TABLE t3(a TEXT, b TEXT);
+    CREATE VIEW v3 AS SELECT t3.a FROM t3;
+    CREATE TRIGGER trig1 INSTEAD OF DELETE ON v3 BEGIN
+      SELECT 1;
+    END;
+    DELETE FROM v3 WHERE a = 1;
+  }
+} {}
+
+} ;# ifcapable view
+
+integrity_check without_rowid4-9.9
+
+finish_test
diff --git a/test/without_rowid5.test b/test/without_rowid5.test
new file mode 100644
index 0000000000000000000000000000000000000000..d1c494484c9b014315aed725d12894ed28665779
--- /dev/null
+++ b/test/without_rowid5.test
@@ -0,0 +1,289 @@
+# 2013-11-26
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Requirements testing for WITHOUT ROWID tables.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !incrblob {
+  finish_test
+  return
+}
+
+# EVIDENCE-OF: R-36924-43758 By default, every row in SQLite has a
+# special column, usually called the "rowid", that uniquely identifies
+# that row within the table.
+#
+# EVIDENCE-OF: R-32341-39358 However if the phrase "WITHOUT ROWID" is
+# added to the end of a CREATE TABLE statement, then the special "rowid"
+# column is omitted.
+#
+do_execsql_test without_rowid5-1.1 {
+  CREATE TABLE t1(a PRIMARY KEY,b,c);
+  CREATE TABLE t1w(a PRIMARY KEY,b,c) WITHOUT ROWID;
+  INSERT INTO t1 VALUES(1565,681,1148),(1429,1190,1619),(425,358,1306);
+  INSERT INTO t1w SELECT a,b,c FROM t1;
+  SELECT rowid, _rowid_, oid FROM t1 ORDER BY a DESC;
+} {1 1 1 2 2 2 3 3 3}
+do_catchsql_test without_rowid5-1.2 {
+  SELECT rowid FROM t1w;
+} {1 {no such column: rowid}}
+do_catchsql_test without_rowid5-1.3 {
+  SELECT _rowid_ FROM t1w;
+} {1 {no such column: _rowid_}}
+do_catchsql_test without_rowid5-1.4 {
+  SELECT oid FROM t1w;
+} {1 {no such column: oid}}
+
+# EVIDENCE-OF: R-00217-01605 To create a WITHOUT ROWID table, simply add
+# the keywords "WITHOUT ROWID" to the end of the CREATE TABLE statement.
+# For example: CREATE TABLE IF NOT EXISTS wordcount( word TEXT PRIMARY
+# KEY, cnt INTEGER ) WITHOUT ROWID;
+#
+do_execsql_test without_rowid5-2.1 {
+  CREATE TABLE IF NOT EXISTS wordcount(
+    word TEXT PRIMARY KEY,
+    cnt INTEGER
+  ) WITHOUT ROWID;
+  INSERT INTO wordcount VALUES('one',1);
+} {}
+do_catchsql_test without_rowid5-2.2 {
+  SELECT rowid FROM wordcount;
+} {1 {no such column: rowid}}
+
+# EVIDENCE-OF: R-24770-17719 As with all SQL syntax, the case of the
+# keywords does not matter. One can write "WITHOUT rowid" or "without
+# rowid" or "WiThOuT rOwId" and it will mean the same thing.
+#
+do_execsql_test without_rowid5-2.3 {
+  CREATE TABLE IF NOT EXISTS wordcount_b(
+    word TEXT PRIMARY KEY,
+    cnt INTEGER
+  ) WITHOUT rowid;
+  INSERT INTO wordcount_b VALUES('one',1);
+} {}
+do_catchsql_test without_rowid5-2.4 {
+  SELECT rowid FROM wordcount_b;
+} {1 {no such column: rowid}}
+do_execsql_test without_rowid5-2.5 {
+  CREATE TABLE IF NOT EXISTS wordcount_c(
+    word TEXT PRIMARY KEY,
+    cnt INTEGER
+  ) without rowid;
+  INSERT INTO wordcount_c VALUES('one',1);
+} {}
+do_catchsql_test without_rowid5-2.6 {
+  SELECT rowid FROM wordcount_c;
+} {1 {no such column: rowid}}
+do_execsql_test without_rowid5-2.7 {
+  CREATE TABLE IF NOT EXISTS wordcount_d(
+    word TEXT PRIMARY KEY,
+    cnt INTEGER
+  ) WITHOUT rowid;
+  INSERT INTO wordcount_d VALUES('one',1);
+} {}
+do_catchsql_test without_rowid5-2.8 {
+  SELECT rowid FROM wordcount_d;
+} {1 {no such column: rowid}}
+
+# EVIDENCE-OF: R-01418-51310 However, only "rowid" works as the keyword
+# in the CREATE TABLE statement.
+#
+do_catchsql_test without_rowid5-3.1 {
+  CREATE TABLE IF NOT EXISTS error1(
+    word TEXT PRIMARY KEY,
+    cnt INTEGER
+  ) WITHOUT _rowid_;
+} {1 {unknown table option: _rowid_}}  
+do_catchsql_test without_rowid5-3.2 {
+  CREATE TABLE IF NOT EXISTS error2(
+    word TEXT PRIMARY KEY,
+    cnt INTEGER
+  ) WITHOUT oid;
+} {1 {unknown table option: oid}}  
+
+# EVIDENCE-OF: R-58033-17334 An error is raised if a CREATE TABLE
+# statement with the WITHOUT ROWID clause lacks a PRIMARY KEY.
+#
+# EVIDENCE-OF: R-63443-09418 Every WITHOUT ROWID table must have a
+# PRIMARY KEY.
+#
+# EVIDENCE-OF: R-27966-31616 An attempt to create a WITHOUT ROWID table
+# without a PRIMARY KEY results in an error.
+#
+do_catchsql_test without_rowid5-4.1 {
+  CREATE TABLE IF NOT EXISTS error3(
+    word TEXT UNIQUE,
+    cnt INTEGER
+  ) WITHOUT ROWID;
+} {1 {PRIMARY KEY missing on table error3}}
+
+# EVIDENCE-OF: R-48230-36247 The special behaviors associated "INTEGER
+# PRIMARY KEY" do not apply on WITHOUT ROWID tables.
+#
+do_execsql_test without_rowid5-5.1 {
+  CREATE TABLE ipk(key INTEGER PRIMARY KEY, val TEXT) WITHOUT ROWID;
+  INSERT INTO ipk VALUES('rival','bonus'); -- ok to insert non-integer key
+  SELECT * FROM ipk;
+} {rival bonus}
+do_catchsql_test without_rowid5-5.2a {
+  BEGIN;
+  INSERT INTO ipk VALUES(NULL,'sample'); -- no automatic generation of keys
+} {1 {NOT NULL constraint failed: ipk.key}}
+do_execsql_test without_rowid5-5.2b {
+  ROLLBACK;
+} {}
+
+# EVIDENCE-OF: R-33142-02092 AUTOINCREMENT does not work on WITHOUT
+# ROWID tables.
+#
+# EVIDENCE-OF: R-53084-07740 An error is raised if the "AUTOINCREMENT"
+# keyword is used in the CREATE TABLE statement for a WITHOUT ROWID
+# table.
+#
+do_catchsql_test without_rowid5-5.3 {
+  CREATE TABLE ipk2(key INTEGER PRIMARY KEY AUTOINCREMENT, val TEXT)WITHOUT ROWID;
+} {1 {AUTOINCREMENT not allowed on WITHOUT ROWID tables}}
+
+# EVIDENCE-OF: R-27831-00579 NOT NULL is enforced on every column of the
+# PRIMARY KEY in a WITHOUT ROWID table.
+#
+# EVIDENCE-OF: R-29781-51289 So, ordinary rowid tables in SQLite violate
+# the SQL standard and allow NULL values in PRIMARY KEY fields.
+#
+# EVIDENCE-OF: R-27472-62612 But WITHOUT ROWID tables do follow the
+# standard and will throw an error on any attempt to insert a NULL into
+# a PRIMARY KEY column.
+#
+do_execsql_test without_rowid5-5.4 {
+  CREATE TABLE nn(a, b, c, d, e, PRIMARY KEY(c,a,e));
+  CREATE TABLE nnw(a, b, c, d, e, PRIMARY KEY(c,a,e)) WITHOUT ROWID;
+  INSERT INTO nn VALUES(1,2,3,4,5);
+  INSERT INTO nnw VALUES(1,2,3,4,5);
+} {}
+do_execsql_test without_rowid5-5.5 {
+  INSERT INTO nn VALUES(NULL, 3,4,5,6);
+  INSERT INTO nn VALUES(3,4,NULL,7,8);
+  INSERT INTO nn VALUES(4,5,6,7,NULL);
+  SELECT count(*) FROM nn;
+} {4}
+do_catchsql_test without_rowid5-5.6 {
+  INSERT INTO nnw VALUES(NULL, 3,4,5,6);
+} {1 {NOT NULL constraint failed: nnw.a}}
+do_catchsql_test without_rowid5-5.7 {
+  INSERT INTO nnw VALUES(3,4,NULL,7,8)
+} {1 {NOT NULL constraint failed: nnw.c}}
+do_catchsql_test without_rowid5-5.8 {
+  INSERT INTO nnw VALUES(4,5,6,7,NULL)
+} {1 {NOT NULL constraint failed: nnw.e}}
+do_execsql_test without_rowid5-5.9 {
+  SELECT count(*) FROM nnw;
+} {1}
+
+# Ticket f2be158c57aaa8c6 (2021-08-18)
+# NOT NULL ON CONFLICT clauses work on WITHOUT ROWID tables now.
+# 
+do_test without_rowid5-5.100 {
+  db eval {
+    DROP TABLE IF EXISTS t5;
+    CREATE TABLE t5(
+      a INT NOT NULL ON CONFLICT ROLLBACK,
+      b TEXT,
+      c TEXT,
+      PRIMARY KEY(a,b)
+    ) WITHOUT ROWID;
+    BEGIN;
+    INSERT INTO t5(a,b,c) VALUES(1,2,3);
+  }
+  catch {db eval {INSERT INTO t5(a,b,c) VALUES(NULL,6,7);}}
+  db eval {
+    SELECT * FROM t5;
+  }
+} {}
+do_test without_rowid5-5.101 {
+  db eval {
+    DROP TABLE IF EXISTS t5;
+    CREATE TABLE t5(
+      a INT NOT NULL ON CONFLICT ABORT,
+      b TEXT,
+      c TEXT,
+      PRIMARY KEY(a,b)
+    ) WITHOUT ROWID;
+    BEGIN;
+    INSERT INTO t5(a,b,c) VALUES(1,2,3);
+  }
+  catch {db eval {INSERT INTO t5(a,b,c) VALUES(NULL,6,7);}}
+  db eval {
+    COMMIT;
+    SELECT * FROM t5;
+  }
+} {1 2 3}
+do_test without_rowid5-5.102 {
+  db eval {
+    DROP TABLE IF EXISTS t5;
+    CREATE TABLE t5(
+      a INT NOT NULL ON CONFLICT FAIL,
+      b TEXT,
+      c TEXT,
+      PRIMARY KEY(a,b)
+    ) WITHOUT ROWID;
+  }
+  catch {db eval {INSERT INTO t5(a,b,c) VALUES(1,2,3),(NULL,4,5),(6,7,8);}}
+  db eval {
+    SELECT * FROM t5;
+  }
+} {1 2 3}
+do_test without_rowid5-5.103 {
+  db eval {
+    DROP TABLE IF EXISTS t5;
+    CREATE TABLE t5(
+      a INT NOT NULL ON CONFLICT IGNORE,
+      b TEXT,
+      c TEXT,
+      PRIMARY KEY(a,b)
+    ) WITHOUT ROWID;
+    INSERT INTO t5(a,b,c) VALUES(1,2,3),(NULL,4,5),(6,7,8);
+    SELECT * FROM t5;
+  }
+} {1 2 3 6 7 8}
+do_test without_rowid5-5.104 {
+  db eval {
+    DROP TABLE IF EXISTS t5;
+    CREATE TABLE t5(
+      a INT NOT NULL ON CONFLICT REPLACE DEFAULT 3,
+      b TEXT,
+      c TEXT,
+      PRIMARY KEY(a,b)
+    ) WITHOUT ROWID;
+    INSERT INTO t5(a,b,c) VALUES(1,2,3),(NULL,4,5),(6,7,8);
+    SELECT * FROM t5;
+  }
+} {1 2 3 3 4 5 6 7 8}
+
+
+# EVIDENCE-OF: R-12643-30541 The incremental blob I/O mechanism does not
+# work for WITHOUT ROWID tables.
+#
+# EVIDENCE-OF: R-40134-30296 Table zTable is a WITHOUT ROWID table
+#
+do_execsql_test without_rowid5-6.1 {
+  CREATE TABLE b1(a INTEGER PRIMARY KEY, b BLOB) WITHOUT ROWID;
+  INSERT INTO b1 VALUES(1,x'0102030405060708090a0b0c0d0e0f');
+} {}
+do_test without_rowid5-6.2 {
+  set rc [catch {db incrblob b1 b 1} msg]
+  lappend rc $msg
+} {1 {cannot open table without rowid: b1}}
+
+
+finish_test
diff --git a/test/without_rowid6.test b/test/without_rowid6.test
new file mode 100644
index 0000000000000000000000000000000000000000..06fc7435b084012af3035e0265f06404e5d0292a
--- /dev/null
+++ b/test/without_rowid6.test
@@ -0,0 +1,134 @@
+# 2014-12-28
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Verify that WITHOUT ROWID tables work correctly when the PRIMARY KEY
+# has redundant columns.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+proc do_execsql_test_if_vtab {tn sql {res {}}} {
+  ifcapable vtab { uplevel [list do_execsql_test $tn $sql $res] }
+}
+
+do_execsql_test without_rowid6-100 {
+  CREATE TABLE t1(a,b,c,d,e, PRIMARY KEY(a,b,c,a,b,c,d,a,b,c)) WITHOUT ROWID;
+  CREATE INDEX t1a ON t1(b, b);
+  WITH RECURSIVE
+    c(i) AS (VALUES(1) UNION ALL SELECT i+1 FROM c WHERE i<1000)
+  INSERT INTO t1(a,b,c,d,e) SELECT i, i+1000, printf('x%dy',i), 0, 0 FROM c;
+  ANALYZE;
+} {}
+do_execsql_test_if_vtab without_rowid6-101 {
+  SELECT name, key FROM pragma_index_xinfo('t1');
+} {a 1 b 1 c 1 d 1 e 0}
+do_execsql_test without_rowid6-110 {
+  SELECT c FROM t1 WHERE a=123;
+} {x123y}
+do_execsql_test without_rowid6-120 {
+  SELECT c FROM t1 WHERE b=1123;
+} {x123y}
+do_execsql_test without_rowid6-130 {
+  SELECT c FROM t1 ORDER BY a DESC LIMIT 5;
+} {x1000y x999y x998y x997y x996y}
+do_execsql_test without_rowid6-140 {
+  SELECT c FROM t1 ORDER BY b LIMIT 5;
+} {x1y x2y x3y x4y x5y}
+
+# Column t1.b starts out as a unique index, but that index is
+# subsequently converted into a PRIMARY KEY.
+#
+do_execsql_test without_rowid6-200 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(
+    a UNIQUE,
+    b UNIQUE,
+    c UNIQUE,
+    PRIMARY KEY(b)
+  ) WITHOUT ROWID;
+  INSERT INTO t1(a,b,c) VALUES(1,8,3),(4,5,6),(7,2,9);
+  SELECT a FROM t1 WHERE b>3 ORDER BY b;
+} {4 1}
+do_execsql_test_if_vtab without_rowid6-201 {
+  SELECT name, key FROM pragma_index_xinfo('t1');
+} {b 1 a 0 c 0}
+do_execsql_test without_rowid6-210 {
+  EXPLAIN QUERY PLAN
+  SELECT a FROM t1 WHERE b>3 ORDER BY b;
+} {/SEARCH t1 USING PRIMARY KEY .b>../}
+do_execsql_test without_rowid6-220 {
+  PRAGMA index_list(t1);
+} {/sqlite_autoindex_t1_2 1 pk/}
+
+do_execsql_test without_rowid6-300 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(
+    a UNIQUE,
+    b PRIMARY KEY,
+    c UNIQUE,
+    UNIQUE(b)
+  ) WITHOUT ROWID;
+  INSERT INTO t1(a,b,c) VALUES(1,8,3),(4,5,6),(7,2,9);
+  SELECT a FROM t1 WHERE b>3 ORDER BY b;
+} {4 1}
+do_execsql_test without_rowid6-310 {
+  EXPLAIN QUERY PLAN
+  SELECT a FROM t1 WHERE b>3 ORDER BY b;
+} {/SEARCH t1 USING PRIMARY KEY .b>../}
+do_execsql_test without_rowid6-320 {
+  PRAGMA index_list(t1);
+} {/sqlite_autoindex_t1_2 1 pk/}
+
+do_execsql_test without_rowid6-400 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(
+    a UNIQUE,
+    b UNIQUE PRIMARY KEY,
+    c UNIQUE
+  ) WITHOUT ROWID;
+  INSERT INTO t1(a,b,c) VALUES(1,8,3),(4,5,6),(7,2,9);
+  SELECT a FROM t1 WHERE b>3 ORDER BY b;
+} {4 1}
+do_execsql_test without_rowid6-410 {
+  EXPLAIN QUERY PLAN
+  SELECT a FROM t1 WHERE b>3 ORDER BY b;
+} {/SEARCH t1 USING PRIMARY KEY .b>../}
+do_execsql_test without_rowid6-420 {
+  PRAGMA index_list(t1);
+} {/sqlite_autoindex_t1_2 1 pk/}
+
+do_execsql_test without_rowid6-500 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a,b,c,
+    UNIQUE(b,c),
+    PRIMARY KEY(b,c)
+  ) WITHOUT ROWID;
+  INSERT INTO t1(a,b,c) VALUES(1,8,3),(4,5,6),(7,2,9);
+  SELECT a FROM t1 WHERE b>3 ORDER BY b;
+} {4 1}
+do_execsql_test_if_vtab without_rowid6-501 {
+  SELECT name, key FROM pragma_index_xinfo('t1');
+} {b 1 c 1 a 0}
+do_execsql_test without_rowid6-510 {
+  EXPLAIN QUERY PLAN
+  SELECT a FROM t1 WHERE b>3 ORDER BY b;
+} {/SEARCH t1 USING PRIMARY KEY .b>../}
+do_execsql_test without_rowid6-520 {
+  PRAGMA index_list(t1);
+} {/sqlite_autoindex_t1_1 1 pk/}
+
+do_catchsql_test without_rowid6-600 {
+  CREATE TABLE t6(a,b,c,PRIMARY KEY(a,rowid,b))WITHOUT ROWID;
+} {1 {no such column: rowid}}
+
+
+finish_test
diff --git a/test/without_rowid7.test b/test/without_rowid7.test
new file mode 100644
index 0000000000000000000000000000000000000000..56e9fb40b9811d8bc64e80ffb5f5badf48b1a189
--- /dev/null
+++ b/test/without_rowid7.test
@@ -0,0 +1,60 @@
+# 2019 July 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix without_rowid7
+
+proc do_execsql_test_if_vtab {tn sql {res {}}} {
+  ifcapable vtab { uplevel [list do_execsql_test $tn $sql $res] }
+}
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a, b COLLATE nocase, PRIMARY KEY(a, a, b)) WITHOUT ROWID;
+}
+
+do_catchsql_test 1.1 {
+  INSERT INTO t1 VALUES(1, 'one'), (1, 'ONE');
+} {1 {UNIQUE constraint failed: t1.a, t1.b}}
+
+
+do_execsql_test 2.0 {
+  CREATE TABLE t2(a, b, PRIMARY KEY(a COLLATE nocase, a)) WITHOUT ROWID;
+}
+
+do_execsql_test 2.1 {
+  INSERT INTO t2 VALUES(1, 'one');
+  SELECT b FROM t2;
+} {one}
+
+do_execsql_test 2.2a {
+  PRAGMA index_info(t2);
+} {0 0 a 1 0 a}
+do_execsql_test_if_vtab 2.2b {
+  SELECT *, '|' FROM pragma_index_info('t2');
+} {0 0 a | 1 0 a |}
+do_execsql_test 2.3a {
+  PRAGMA index_xinfo(t2);
+} {0 0 a 0 nocase 1 1 0 a 0 BINARY 1 2 1 b 0 BINARY 0}
+do_execsql_test_if_vtab 2.3b {
+  SELECT *, '|' FROM pragma_index_xinfo('t2');
+} {0 0 a 0 nocase 1 | 1 0 a 0 BINARY 1 | 2 1 b 0 BINARY 0 |}
+
+do_execsql_test 2.4 {
+  CREATE TABLE t3(a, b, PRIMARY KEY(a COLLATE nocase, a));
+  PRAGMA index_info(t3);
+} {}
+
+
+
+finish_test
diff --git a/test/wordcount.c b/test/wordcount.c
new file mode 100644
index 0000000000000000000000000000000000000000..4a21d25ddd6b535d733055e382bc2d83543fde73
--- /dev/null
+++ b/test/wordcount.c
@@ -0,0 +1,659 @@
+/*
+** This C program extracts all "words" from an input document and adds them
+** to an SQLite database.  A "word" is any contiguous sequence of alphabetic
+** characters.  All digits, punctuation, and whitespace characters are 
+** word separators.  The database stores a single entry for each distinct
+** word together with a count of the number of occurrences of that word.
+** A fresh database is created automatically on each run.
+**
+**     wordcount DATABASE INPUTFILE
+**
+** The INPUTFILE name can be omitted, in which case input it taken from
+** standard input.
+**
+** Option:
+**
+**
+** Modes:
+**
+** Insert mode means:
+**    (1) INSERT OR IGNORE INTO wordcount VALUES($new,1)
+**    (2) UPDATE wordcount SET cnt=cnt+1 WHERE word=$new -- if (1) is a noop
+**
+** Update mode means:
+**    (1) INSERT OR IGNORE INTO wordcount VALUES($new,0)
+**    (2) UPDATE wordcount SET cnt=cnt+1 WHERE word=$new
+**
+** Replace mode means:
+**    (1) REPLACE INTO wordcount
+**        VALUES($new,ifnull((SELECT cnt FROM wordcount WHERE word=$new),0)+1);
+**
+** Upsert mode means:
+**    (1) INSERT INTO wordcount VALUES($new,1)
+**            ON CONFLICT(word) DO UPDATE SET cnt=cnt+1
+**
+** Select mode means:
+**    (1) SELECT 1 FROM wordcount WHERE word=$new
+**    (2) INSERT INTO wordcount VALUES($new,1) -- if (1) returns nothing
+**    (3) UPDATE wordcount SET cnt=cnt+1 WHERE word=$new  --if (1) return TRUE
+**
+** Delete mode means:
+**    (1) DELETE FROM wordcount WHERE word=$new
+**
+** Query mode means:
+**    (1) SELECT cnt FROM wordcount WHERE word=$new
+**
+** Note that delete mode and query mode are only useful for preexisting
+** databases.  The wordcount table is created using IF NOT EXISTS so this
+** utility can be run multiple times on the same database file.  The
+** --without-rowid, --nocase, and --pagesize parameters are only effective
+** when creating a new database and are harmless no-ops on preexisting
+** databases.
+**
+******************************************************************************
+**
+** Compile as follows:
+**
+**    gcc -I. wordcount.c sqlite3.c -ldl -lpthreads
+**
+** Or:
+**
+**    gcc -I. -DSQLITE_THREADSAFE=0 -DSQLITE_OMIT_LOAD_EXTENSION \
+**        wordcount.c sqlite3.c
+*/
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include "sqlite3.h"
+#ifndef _WIN32
+# include <unistd.h>
+#else
+# include <io.h>
+#endif
+#define ISALPHA(X) isalpha((unsigned char)(X))
+
+const char zHelp[] = 
+"Usage: wordcount [OPTIONS] DATABASE [INPUT]\n"
+" --all                Repeat the test for all test modes\n"
+" --cachesize NNN      Use a cache size of NNN\n"
+" --commit NNN         Commit after every NNN operations\n"
+" --delete             Use DELETE mode\n"
+" --insert             Use INSERT mode (the default)\n"
+" --journal MMMM       Use PRAGMA journal_mode=MMMM\n"
+" --nocase             Add the NOCASE collating sequence to the words.\n"
+" --nosync             Use PRAGMA synchronous=OFF\n"
+" --pagesize NNN       Use a page size of NNN\n"
+" --query              Use QUERY mode\n"
+" --replace            Use REPLACE mode\n"
+" --select             Use SELECT mode\n"
+" --stats              Show sqlite3_status() results at the end.\n"
+" --summary            Show summary information on the collected data.\n"
+" --tag NAME           Tag all output using NAME.  Use only stdout.\n"
+" --timer              Time the operation of this program\n"
+" --trace              Enable sqlite3_trace() output.\n"
+" --update             Use UPDATE mode\n"
+" --upsert             Use UPSERT mode\n"
+" --without-rowid      Use a WITHOUT ROWID table to store the words.\n"
+;
+
+/* Output tag */
+char *zTag = "--";
+
+/* Return the current wall-clock time */
+static sqlite3_int64 realTime(void){
+  static sqlite3_vfs *clockVfs = 0;
+  sqlite3_int64 t;
+  if( clockVfs==0 ) clockVfs = sqlite3_vfs_find(0);
+  if( clockVfs->iVersion>=1 && clockVfs->xCurrentTimeInt64!=0 ){
+    clockVfs->xCurrentTimeInt64(clockVfs, &t);
+  }else{
+    double r;
+    clockVfs->xCurrentTime(clockVfs, &r);
+    t = (sqlite3_int64)(r*86400000.0);
+  }
+  return t;
+}
+
+/* Print an error message and exit */
+static void fatal_error(const char *zMsg, ...){
+  va_list ap;
+  va_start(ap, zMsg);
+  vfprintf(stderr, zMsg, ap);
+  va_end(ap);
+  exit(1);
+}
+
+/* Print a usage message and quit */
+static void usage(void){
+  printf("%s",zHelp);
+  exit(0);
+}
+
+/* The sqlite3_trace() callback function */
+static void traceCallback(void *NotUsed, const char *zSql){
+  printf("%s;\n", zSql);
+}
+
+/* An sqlite3_exec() callback that prints results on standard output,
+** each column separated by a single space. */
+static int printResult(void *NotUsed, int nArg, char **azArg, char **azNm){
+  int i;
+  printf("%s", zTag);
+  for(i=0; i<nArg; i++){
+    printf(" %s", azArg[i] ? azArg[i] : "(null)");
+  }
+  printf("\n");
+  return 0;
+}
+
+
+/*
+** Add one character to a hash
+*/
+static void addCharToHash(unsigned int *a, unsigned char x){
+  if( a[0]<4 ){
+    a[1] = (a[1]<<8) | x;
+    a[0]++;
+  }else{
+    a[2] = (a[2]<<8) | x;
+    a[0]++;
+    if( a[0]==8 ){
+      a[3] += a[1] + a[4];
+      a[4] += a[2] + a[3];
+      a[0] = a[1] = a[2] = 0;
+    }
+  }    
+}
+
+/*
+** Compute the final hash value.
+*/
+static void finalHash(unsigned int *a, char *z){
+  a[3] += a[1] + a[4] + a[0];
+  a[4] += a[2] + a[3];
+  sqlite3_snprintf(17, z, "%08x%08x", a[3], a[4]);
+}
+
+
+/*
+** Implementation of a checksum() aggregate SQL function
+*/
+static void checksumStep(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  const unsigned char *zVal;
+  int nVal, i, j;
+  unsigned int *a;
+  a = (unsigned*)sqlite3_aggregate_context(context, sizeof(unsigned int)*5);
+
+  if( a ){
+    for(i=0; i<argc; i++){
+      nVal = sqlite3_value_bytes(argv[i]);
+      zVal = (const unsigned char*)sqlite3_value_text(argv[i]);
+      if( zVal ) for(j=0; j<nVal; j++) addCharToHash(a, zVal[j]);
+      addCharToHash(a, '|');
+    }
+    addCharToHash(a, '\n');
+  }
+}
+static void checksumFinalize(sqlite3_context *context){
+  unsigned int *a;
+  char zResult[24];
+  a = sqlite3_aggregate_context(context, 0);
+  if( a ){
+    finalHash(a, zResult);
+    sqlite3_result_text(context, zResult, -1, SQLITE_TRANSIENT);
+  }
+}
+
+/* Define operating modes */
+#define MODE_INSERT     0
+#define MODE_REPLACE    1
+#define MODE_UPSERT     2
+#define MODE_SELECT     3
+#define MODE_UPDATE     4
+#define MODE_DELETE     5
+#define MODE_QUERY      6
+#define MODE_COUNT      7
+#define MODE_ALL      (-1)
+
+/* Mode names */
+static const char *azMode[] = {
+  "--insert",
+  "--replace",
+  "--upsert",
+  "--select",
+  "--update",
+  "--delete",
+  "--query"
+};
+
+/*
+** Determine if another iteration of the test is required.  Return true
+** if so.  Return zero if all iterations have finished.
+*/
+static int allLoop(
+  int iMode,                /* The selected test mode */
+  int *piLoopCnt,           /* Iteration loop counter */
+  int *piMode2,             /* The test mode to use on the next iteration */
+  int *pUseWithoutRowid     /* Whether or not to use --without-rowid */
+){
+  int i;
+  if( iMode!=MODE_ALL ){
+    if( *piLoopCnt ) return 0;
+    *piMode2 = iMode;
+    *piLoopCnt = 1;
+    return 1;
+  }
+  if( (*piLoopCnt)>=MODE_COUNT*2 ) return 0;
+  i = (*piLoopCnt)++;
+  *pUseWithoutRowid = i&1;
+  *piMode2 = i>>1;
+  return 1;
+}
+
+int main(int argc, char **argv){
+  const char *zFileToRead = 0;  /* Input file.  NULL for stdin */
+  const char *zDbName = 0;      /* Name of the database file to create */
+  int useWithoutRowid = 0;      /* True for --without-rowid */
+  int iMode = MODE_INSERT;      /* One of MODE_xxxxx */
+  int iMode2;                   /* Mode to use for current --all iteration */
+  int iLoopCnt = 0;             /* Which iteration when running --all */
+  int useNocase = 0;            /* True for --nocase */
+  int doTrace = 0;              /* True for --trace */
+  int showStats = 0;            /* True for --stats */
+  int showSummary = 0;          /* True for --summary */
+  int showTimer = 0;            /* True for --timer */
+  int cacheSize = 0;            /* Desired cache size.  0 means default */
+  int pageSize = 0;             /* Desired page size.  0 means default */
+  int commitInterval = 0;       /* How often to commit.  0 means never */
+  int noSync = 0;               /* True for --nosync */
+  const char *zJMode = 0;       /* Journal mode */
+  int nOp = 0;                  /* Operation counter */
+  int i, j;                     /* Loop counters */
+  sqlite3 *db;                  /* The SQLite database connection */
+  char *zSql;                   /* Constructed SQL statement */
+  sqlite3_stmt *pInsert = 0;    /* The INSERT statement */
+  sqlite3_stmt *pUpdate = 0;    /* The UPDATE statement */
+  sqlite3_stmt *pSelect = 0;    /* The SELECT statement */
+  sqlite3_stmt *pDelete = 0;    /* The DELETE statement */
+  FILE *in;                     /* The open input file */
+  int rc;                       /* Return code from an SQLite interface */
+  int iCur, iHiwtr;             /* Statistics values, current and "highwater" */
+  FILE *pTimer = stderr;        /* Output channel for the timer */
+  sqlite3_int64 sumCnt = 0;     /* Sum in QUERY mode */
+  sqlite3_int64 startTime;      /* Time of start */
+  sqlite3_int64 totalTime = 0;  /* Total time */
+  char zInput[2000];            /* A single line of input */
+
+  /* Process command-line arguments */
+  for(i=1; i<argc; i++){
+    const char *z = argv[i];
+    if( z[0]=='-' ){
+      do{ z++; }while( z[0]=='-' );
+      if( strcmp(z,"without-rowid")==0 ){
+        useWithoutRowid = 1;
+      }else if( strcmp(z,"replace")==0 ){
+        iMode = MODE_REPLACE;
+      }else if( strcmp(z,"upsert")==0 ){
+        iMode = MODE_UPSERT;
+      }else if( strcmp(z,"select")==0 ){
+        iMode = MODE_SELECT;
+      }else if( strcmp(z,"insert")==0 ){
+        iMode = MODE_INSERT;
+      }else if( strcmp(z,"update")==0 ){
+        iMode = MODE_UPDATE;
+      }else if( strcmp(z,"delete")==0 ){
+        iMode = MODE_DELETE;
+      }else if( strcmp(z,"query")==0 ){
+        iMode = MODE_QUERY;
+      }else if( strcmp(z,"all")==0 ){
+        iMode = MODE_ALL;
+        showTimer = -99;
+      }else if( strcmp(z,"nocase")==0 ){
+        useNocase = 1;
+      }else if( strcmp(z,"trace")==0 ){
+        doTrace = 1;
+      }else if( strcmp(z,"nosync")==0 ){
+        noSync = 1;
+      }else if( strcmp(z,"stats")==0 ){
+        showStats = 1;
+      }else if( strcmp(z,"summary")==0 ){
+        showSummary = 1;
+      }else if( strcmp(z,"timer")==0 ){
+        showTimer = i;
+      }else if( strcmp(z,"cachesize")==0 && i<argc-1 ){
+        i++;
+        cacheSize = atoi(argv[i]);
+      }else if( strcmp(z,"pagesize")==0 && i<argc-1 ){
+        i++;
+        pageSize = atoi(argv[i]);
+      }else if( strcmp(z,"commit")==0 && i<argc-1 ){
+        i++;
+        commitInterval = atoi(argv[i]);
+      }else if( strcmp(z,"journal")==0 && i<argc-1 ){
+        zJMode = argv[++i];
+      }else if( strcmp(z,"tag")==0 && i<argc-1 ){
+        zTag = argv[++i];
+        pTimer = stdout;
+      }else if( strcmp(z, "help")==0 || strcmp(z,"?")==0 ){
+        usage();
+      }else{
+        fatal_error("unknown option: \"%s\"\n"
+                    "Use --help for a list of options\n",
+                    argv[i]);
+      }
+    }else if( zDbName==0 ){
+      zDbName = argv[i];
+    }else if( zFileToRead==0 ){
+      zFileToRead = argv[i];
+    }else{
+      fatal_error("surplus argument: \"%s\"\n", argv[i]);
+    }
+  }
+  if( zDbName==0 ){
+    usage();
+  }
+  startTime = realTime();
+
+  /* Open the database and the input file */
+  if( zDbName[0] && strcmp(zDbName,":memory:")!=0 ){
+    unlink(zDbName);
+  }
+  if( sqlite3_open(zDbName, &db) ){
+    fatal_error("Cannot open database file: %s\n", zDbName);
+  }
+  if( zFileToRead ){
+    in = fopen(zFileToRead, "rb");
+    if( in==0 ){
+      fatal_error("Could not open input file \"%s\"\n", zFileToRead);
+    }
+  }else{
+    if( iMode==MODE_ALL ){
+      fatal_error("The --all mode cannot be used with stdin\n");
+    }
+    in = stdin;
+  }
+
+  /* Set database connection options */
+  if( doTrace ) sqlite3_trace(db, traceCallback, 0);
+  if( pageSize ){
+    zSql = sqlite3_mprintf("PRAGMA page_size=%d", pageSize);
+    sqlite3_exec(db, zSql, 0, 0, 0);
+    sqlite3_free(zSql);
+  }
+  if( cacheSize ){
+    zSql = sqlite3_mprintf("PRAGMA cache_size=%d", cacheSize);
+    sqlite3_exec(db, zSql, 0, 0, 0);
+    sqlite3_free(zSql);
+  }
+  if( noSync ) sqlite3_exec(db, "PRAGMA synchronous=OFF", 0, 0, 0);
+  if( zJMode ){
+    zSql = sqlite3_mprintf("PRAGMA journal_mode=%s", zJMode);
+    sqlite3_exec(db, zSql, 0, 0, 0);
+    sqlite3_free(zSql);
+  }
+
+  iLoopCnt = 0;
+  while( allLoop(iMode, &iLoopCnt, &iMode2, &useWithoutRowid) ){
+    /* Delete prior content in --all mode */
+    if( iMode==MODE_ALL ){
+      if( sqlite3_exec(db, "DROP TABLE IF EXISTS wordcount; VACUUM;",0,0,0) ){
+        fatal_error("Could not clean up prior iteration\n");
+      }
+      startTime = realTime();
+      rewind(in);
+    }
+ 
+    /* Construct the "wordcount" table into which to put the words */
+    if( sqlite3_exec(db, "BEGIN IMMEDIATE", 0, 0, 0) ){
+      fatal_error("Could not start a transaction\n");
+    }
+    zSql = sqlite3_mprintf(
+       "CREATE TABLE IF NOT EXISTS wordcount(\n"
+       "  word TEXT PRIMARY KEY COLLATE %s,\n"
+       "  cnt INTEGER\n"
+       ")%s",
+       useNocase ? "nocase" : "binary",
+       useWithoutRowid ? " WITHOUT ROWID" : ""
+    );
+    if( zSql==0 ) fatal_error("out of memory\n");
+    rc = sqlite3_exec(db, zSql, 0, 0, 0);
+    if( rc ) fatal_error("Could not create the wordcount table: %s.\n",
+                         sqlite3_errmsg(db));
+    sqlite3_free(zSql);
+  
+    /* Prepare SQL statements that will be needed */
+    if( iMode2==MODE_QUERY ){
+      rc = sqlite3_prepare_v2(db,
+            "SELECT cnt FROM wordcount WHERE word=?1",
+            -1, &pSelect, 0);
+      if( rc ) fatal_error("Could not prepare the SELECT statement: %s\n",
+                            sqlite3_errmsg(db));
+    }
+    if( iMode2==MODE_SELECT ){
+      rc = sqlite3_prepare_v2(db,
+            "SELECT 1 FROM wordcount WHERE word=?1",
+            -1, &pSelect, 0);
+      if( rc ) fatal_error("Could not prepare the SELECT statement: %s\n",
+                            sqlite3_errmsg(db));
+      rc = sqlite3_prepare_v2(db,
+            "INSERT INTO wordcount(word,cnt) VALUES(?1,1)",
+            -1, &pInsert, 0);
+      if( rc ) fatal_error("Could not prepare the INSERT statement: %s\n",
+                           sqlite3_errmsg(db));
+    }
+    if( iMode2==MODE_SELECT || iMode2==MODE_UPDATE || iMode2==MODE_INSERT ){
+      rc = sqlite3_prepare_v2(db,
+            "UPDATE wordcount SET cnt=cnt+1 WHERE word=?1",
+            -1, &pUpdate, 0);
+      if( rc ) fatal_error("Could not prepare the UPDATE statement: %s\n",
+                           sqlite3_errmsg(db));
+    }
+    if( iMode2==MODE_INSERT ){
+      rc = sqlite3_prepare_v2(db,
+            "INSERT OR IGNORE INTO wordcount(word,cnt) VALUES(?1,1)",
+            -1, &pInsert, 0);
+      if( rc ) fatal_error("Could not prepare the INSERT statement: %s\n",
+                           sqlite3_errmsg(db));
+    }
+    if( iMode2==MODE_UPDATE ){
+      rc = sqlite3_prepare_v2(db,
+            "INSERT OR IGNORE INTO wordcount(word,cnt) VALUES(?1,0)",
+            -1, &pInsert, 0);
+      if( rc ) fatal_error("Could not prepare the INSERT statement: %s\n",
+                           sqlite3_errmsg(db));
+    }
+    if( iMode2==MODE_REPLACE ){
+      rc = sqlite3_prepare_v2(db,
+          "REPLACE INTO wordcount(word,cnt)"
+          "VALUES(?1,coalesce((SELECT cnt FROM wordcount WHERE word=?1),0)+1)",
+          -1, &pInsert, 0);
+      if( rc ) fatal_error("Could not prepare the REPLACE statement: %s\n",
+                            sqlite3_errmsg(db));
+    }
+    if( iMode2==MODE_UPSERT ){
+      rc = sqlite3_prepare_v2(db,
+          "INSERT INTO wordcount(word,cnt) VALUES(?1,1) "
+          "ON CONFLICT(word) DO UPDATE SET cnt=cnt+1",
+          -1, &pInsert, 0);
+      if( rc ) fatal_error("Could not prepare the UPSERT statement: %s\n",
+                            sqlite3_errmsg(db));
+    }
+    if( iMode2==MODE_DELETE ){
+      rc = sqlite3_prepare_v2(db,
+            "DELETE FROM wordcount WHERE word=?1",
+            -1, &pDelete, 0);
+      if( rc ) fatal_error("Could not prepare the DELETE statement: %s\n",
+                           sqlite3_errmsg(db));
+    }
+  
+    /* Process the input file */
+    while( fgets(zInput, sizeof(zInput), in) ){
+      for(i=0; zInput[i]; i++){
+        if( !ISALPHA(zInput[i]) ) continue;
+        for(j=i+1; ISALPHA(zInput[j]); j++){}
+  
+        /* Found a new word at zInput[i] that is j-i bytes long. 
+        ** Process it into the wordcount table.  */
+        if( iMode2==MODE_DELETE ){
+          sqlite3_bind_text(pDelete, 1, zInput+i, j-i, SQLITE_STATIC);
+          if( sqlite3_step(pDelete)!=SQLITE_DONE ){
+            fatal_error("DELETE failed: %s\n", sqlite3_errmsg(db));
+          }
+          sqlite3_reset(pDelete);
+        }else if( iMode2==MODE_SELECT ){
+          sqlite3_bind_text(pSelect, 1, zInput+i, j-i, SQLITE_STATIC);
+          rc = sqlite3_step(pSelect);
+          sqlite3_reset(pSelect);
+          if( rc==SQLITE_ROW ){
+            sqlite3_bind_text(pUpdate, 1, zInput+i, j-i, SQLITE_STATIC);
+            if( sqlite3_step(pUpdate)!=SQLITE_DONE ){
+              fatal_error("UPDATE failed: %s\n", sqlite3_errmsg(db));
+            }
+            sqlite3_reset(pUpdate);
+          }else if( rc==SQLITE_DONE ){
+            sqlite3_bind_text(pInsert, 1, zInput+i, j-i, SQLITE_STATIC);
+            if( sqlite3_step(pInsert)!=SQLITE_DONE ){
+              fatal_error("Insert failed: %s\n", sqlite3_errmsg(db));
+            }
+            sqlite3_reset(pInsert);
+          }else{
+            fatal_error("SELECT failed: %s\n", sqlite3_errmsg(db));
+          }
+        }else if( iMode2==MODE_QUERY ){
+          sqlite3_bind_text(pSelect, 1, zInput+i, j-i, SQLITE_STATIC);
+          if( sqlite3_step(pSelect)==SQLITE_ROW ){
+            sumCnt += sqlite3_column_int64(pSelect, 0);
+          }
+          sqlite3_reset(pSelect);
+        }else{
+          sqlite3_bind_text(pInsert, 1, zInput+i, j-i, SQLITE_STATIC);
+          if( sqlite3_step(pInsert)!=SQLITE_DONE ){
+            fatal_error("INSERT failed: %s\n", sqlite3_errmsg(db));
+          }
+          sqlite3_reset(pInsert);
+          if( iMode2==MODE_UPDATE
+           || (iMode2==MODE_INSERT && sqlite3_changes(db)==0)
+          ){
+            sqlite3_bind_text(pUpdate, 1, zInput+i, j-i, SQLITE_STATIC);
+            if( sqlite3_step(pUpdate)!=SQLITE_DONE ){
+              fatal_error("UPDATE failed: %s\n", sqlite3_errmsg(db));
+            }
+            sqlite3_reset(pUpdate);
+          }
+        }
+        i = j-1;
+  
+        /* Increment the operation counter.  Do a COMMIT if it is time. */
+        nOp++;
+        if( commitInterval>0 && (nOp%commitInterval)==0 ){
+          sqlite3_exec(db, "COMMIT; BEGIN IMMEDIATE", 0, 0, 0);
+        }
+      }
+    }
+    sqlite3_exec(db, "COMMIT", 0, 0, 0);
+    sqlite3_finalize(pInsert);  pInsert = 0;
+    sqlite3_finalize(pUpdate);  pUpdate = 0;
+    sqlite3_finalize(pSelect);  pSelect = 0;
+    sqlite3_finalize(pDelete);  pDelete = 0;
+  
+    if( iMode2==MODE_QUERY && iMode!=MODE_ALL ){
+      printf("%s sum of cnt: %lld\n", zTag, sumCnt);
+      rc = sqlite3_prepare_v2(db,"SELECT sum(cnt*cnt) FROM wordcount", -1,
+                              &pSelect, 0);
+      if( rc==SQLITE_OK && sqlite3_step(pSelect)==SQLITE_ROW ){
+        printf("%s double-check: %lld\n", zTag,sqlite3_column_int64(pSelect,0));
+      }
+      sqlite3_finalize(pSelect);
+    }
+  
+  
+    if( showTimer ){
+      sqlite3_int64 elapseTime = realTime() - startTime;
+      totalTime += elapseTime;
+      fprintf(pTimer, "%3d.%03d wordcount", (int)(elapseTime/1000),
+                                   (int)(elapseTime%1000));
+      if( iMode==MODE_ALL ){
+        fprintf(pTimer, " %s%s\n", azMode[iMode2],
+                useWithoutRowid? " --without-rowid" : "");
+      }else{
+        for(i=1; i<argc; i++) if( i!=showTimer ) fprintf(pTimer," %s",argv[i]);
+        fprintf(pTimer, "\n");
+      }
+    }
+  
+    if( showSummary ){
+      sqlite3_create_function(db, "checksum", -1, SQLITE_UTF8, 0,
+                              0, checksumStep, checksumFinalize);
+      sqlite3_exec(db, 
+        "SELECT 'count(*):  ', count(*) FROM wordcount;\n"
+        "SELECT 'sum(cnt):  ', sum(cnt) FROM wordcount;\n"
+        "SELECT 'max(cnt):  ', max(cnt) FROM wordcount;\n"
+        "SELECT 'avg(cnt):  ', avg(cnt) FROM wordcount;\n"
+        "SELECT 'sum(cnt=1):', sum(cnt=1) FROM wordcount;\n"
+        "SELECT 'top 10:    ', group_concat(word, ', ') FROM "
+           "(SELECT word FROM wordcount ORDER BY cnt DESC, word LIMIT 10);\n"
+        "SELECT 'checksum:  ', checksum(word, cnt) FROM "
+           "(SELECT word, cnt FROM wordcount ORDER BY word);\n"
+        "PRAGMA integrity_check;\n",
+        printResult, 0, 0);
+    }
+  } /* End the --all loop */
+
+  /* Close the input file after the last read */
+  if( zFileToRead ) fclose(in);
+
+  /* In --all mode, so the total time */
+  if( iMode==MODE_ALL && showTimer ){
+    fprintf(pTimer, "%3d.%03d wordcount --all\n", (int)(totalTime/1000),
+                                   (int)(totalTime%1000));
+  }
+  
+  /* Database connection statistics printed after both prepared statements
+  ** have been finalized */
+  if( showStats ){
+    sqlite3_db_status(db, SQLITE_DBSTATUS_LOOKASIDE_USED, &iCur, &iHiwtr, 0);
+    printf("%s Lookaside Slots Used:        %d (max %d)\n", zTag, iCur,iHiwtr);
+    sqlite3_db_status(db, SQLITE_DBSTATUS_LOOKASIDE_HIT, &iCur, &iHiwtr, 0);
+    printf("%s Successful lookasides:       %d\n", zTag, iHiwtr);
+    sqlite3_db_status(db, SQLITE_DBSTATUS_LOOKASIDE_MISS_SIZE, &iCur,&iHiwtr,0);
+    printf("%s Lookaside size faults:       %d\n", zTag, iHiwtr);
+    sqlite3_db_status(db, SQLITE_DBSTATUS_LOOKASIDE_MISS_FULL, &iCur,&iHiwtr,0);
+    printf("%s Lookaside OOM faults:        %d\n", zTag, iHiwtr);
+    sqlite3_db_status(db, SQLITE_DBSTATUS_CACHE_USED, &iCur, &iHiwtr, 0);
+    printf("%s Pager Heap Usage:            %d bytes\n", zTag, iCur);
+    sqlite3_db_status(db, SQLITE_DBSTATUS_CACHE_HIT, &iCur, &iHiwtr, 1);
+    printf("%s Page cache hits:             %d\n", zTag, iCur);
+    sqlite3_db_status(db, SQLITE_DBSTATUS_CACHE_MISS, &iCur, &iHiwtr, 1);
+    printf("%s Page cache misses:           %d\n", zTag, iCur); 
+    sqlite3_db_status(db, SQLITE_DBSTATUS_CACHE_WRITE, &iCur, &iHiwtr, 1);
+    printf("%s Page cache writes:           %d\n", zTag, iCur); 
+    sqlite3_db_status(db, SQLITE_DBSTATUS_SCHEMA_USED, &iCur, &iHiwtr, 0);
+    printf("%s Schema Heap Usage:           %d bytes\n", zTag, iCur); 
+    sqlite3_db_status(db, SQLITE_DBSTATUS_STMT_USED, &iCur, &iHiwtr, 0);
+    printf("%s Statement Heap Usage:        %d bytes\n", zTag, iCur); 
+  }
+
+  sqlite3_close(db);
+
+  /* Global memory usage statistics printed after the database connection
+  ** has closed.  Memory usage should be zero at this point. */
+  if( showStats ){
+    sqlite3_status(SQLITE_STATUS_MEMORY_USED, &iCur, &iHiwtr, 0);
+    printf("%s Memory Used (bytes):         %d (max %d)\n", zTag,iCur,iHiwtr);
+    sqlite3_status(SQLITE_STATUS_MALLOC_COUNT, &iCur, &iHiwtr, 0);
+    printf("%s Outstanding Allocations:     %d (max %d)\n",zTag,iCur,iHiwtr);
+    sqlite3_status(SQLITE_STATUS_PAGECACHE_OVERFLOW, &iCur, &iHiwtr, 0);
+    printf("%s Pcache Overflow Bytes:       %d (max %d)\n",zTag,iCur,iHiwtr);
+    sqlite3_status(SQLITE_STATUS_MALLOC_SIZE, &iCur, &iHiwtr, 0);
+    printf("%s Largest Allocation:          %d bytes\n",zTag,iHiwtr);
+    sqlite3_status(SQLITE_STATUS_PAGECACHE_SIZE, &iCur, &iHiwtr, 0);
+    printf("%s Largest Pcache Allocation:   %d bytes\n",zTag,iHiwtr);
+  }
+  return 0;
+}
diff --git a/test/writecrash.test b/test/writecrash.test
new file mode 100644
index 0000000000000000000000000000000000000000..01bc4dbb56e1c53840785503b5d6f5876ce63af7
--- /dev/null
+++ b/test/writecrash.test
@@ -0,0 +1,68 @@
+# 2009 January 8
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# Test the outcome of a writer crashing within a call to the VFS
+# xWrite function.
+#
+
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix writecrash
+
+do_not_use_codec
+
+
+if {$tcl_platform(platform)=="windows"} {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE TABLE t1(a INTEGER PRIMARY KEY, b BLOB UNIQUE);
+  WITH s(i) AS (
+    VALUES(1) UNION ALL SELECT i+1 FROM s WHERE i<100
+  )
+  INSERT INTO t1 SELECT NULL, randomblob(900) FROM s;
+} {}
+
+set bGo 1
+for {set tn 1} {$bGo} {incr tn} {
+
+db close
+sqlite3 db test.db
+
+  do_test 1.$tn.1 {
+    set res [crash_on_write $tn {
+      UPDATE t1 SET b = randomblob(899) WHERE (a%3)==0
+    }]
+    set bGo 0
+    if {[string match {1 {child killed:*}} $res]} {
+      set res {0 {}}
+      set bGo 1
+    }
+    set res
+  } {0 {}}
+
+#db close
+#sqlite3 db test.db
+
+  do_execsql_test 1.$tn.2 { PRAGMA integrity_check } {ok}
+
+db close
+sqlite3 db test.db
+
+  do_execsql_test 1.$tn.3 { PRAGMA integrity_check } {ok}
+}
+
+
+
+finish_test
diff --git a/test/zeroblob.test b/test/zeroblob.test
new file mode 100644
index 0000000000000000000000000000000000000000..df234eea44ed527d0313f39983e7b0a4a3435fad
--- /dev/null
+++ b/test/zeroblob.test
@@ -0,0 +1,343 @@
+# 2007 May 02
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing of the zero-filled blob functionality
+# including the sqlite3_bind_zeroblob(), sqlite3_result_zeroblob(),
+# and the built-in zeroblob() SQL function.
+#
+# $Id: zeroblob.test,v 1.14 2009/07/14 02:33:02 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix zeroblob
+
+# ifcapable !incrblob { finish_test return }
+
+test_set_config_pagecache 0 0
+
+# When zeroblob() is used for the last field of a column, then the
+# content of the zeroblob is never instantiated on the VDBE stack.
+# But it does get inserted into the database correctly.
+#
+db eval {PRAGMA cache_size=10}
+sqlite3_memory_highwater 1
+unset -nocomplain memused
+set memused [sqlite3_memory_used]
+do_test zeroblob-1.1 {
+  execsql {
+    CREATE TABLE t1(a,b,c,d);
+  }
+  set ::sqlite3_max_blobsize 0
+  execsql {
+    INSERT INTO t1 VALUES(2,3,4,zeroblob(1000000));
+  }
+} {}
+
+ifcapable incrblob {
+  do_test zeroblob-1.1.1 {
+    set ::sqlite3_max_blobsize
+  } {10}
+  do_test zeroblob-1.1.2 {
+    expr {[sqlite3_memory_highwater]<$::memused+35000}
+  } {1}
+}
+
+do_test zeroblob-1.2 {
+  execsql {
+    SELECT length(d) FROM t1
+  }
+} {1000000}
+
+# If a non-NULL column follows the zeroblob, then the content of
+# the zeroblob must be instantiated.
+#
+do_test zeroblob-1.3 {
+  set ::sqlite3_max_blobsize 0
+  execsql {
+    INSERT INTO t1 VALUES(3,4,zeroblob(10000),5);
+  }
+  set ::sqlite3_max_blobsize
+} {10010}
+do_test zeroblob-1.4 {
+  execsql {
+    SELECT length(c), length(d) FROM t1
+  }
+} {1 1000000 10000 1}
+
+# Multiple zeroblobs can appear at the end of record.  No instantiation
+# of the blob content occurs on the stack.
+#
+do_test zeroblob-1.5 {
+  set ::sqlite3_max_blobsize 0
+  execsql {
+    INSERT INTO t1 VALUES(4,5,zeroblob(10000),zeroblob(10000));
+  }
+} {}
+ifcapable incrblob {
+  do_test zeroblob-1.5.1 {
+    set ::sqlite3_max_blobsize
+  } {11}
+}
+do_test zeroblob-1.6 {
+  execsql {
+    SELECT length(c), length(d) FROM t1
+  }
+} {1 1000000 10000 1 10000 10000}
+
+# NULLs can follow the zeroblob() or be intermixed with zeroblobs and
+# no instantiation of the zeroblobs occurs on the stack.
+#
+do_test zeroblob-1.7 {
+  set ::sqlite3_max_blobsize 0
+  execsql {
+    INSERT INTO t1 VALUES(5,zeroblob(10000),NULL,zeroblob(10000));
+  }
+} {}
+ifcapable incrblob {
+  do_test zeroblob-1.7.1 {
+    set ::sqlite3_max_blobsize
+  } {10}
+}
+do_test zeroblob-1.8 {
+  execsql {
+    SELECT length(b), length(d) FROM t1 WHERE a=5
+  }
+} {10000 10000}
+
+# Comparisons against zeroblobs work.
+#
+do_test zeroblob-2.1 {
+  execsql {
+    SELECT a FROM t1 WHERE b=zeroblob(10000)
+  }
+} {5}
+
+# Comparisons against zeroblobs work even when indexed.
+#
+do_test zeroblob-2.2 {
+  execsql {
+    CREATE INDEX i1_1 ON t1(b);
+    SELECT a FROM t1 WHERE b=zeroblob(10000);
+  }
+} {5}
+
+# DISTINCT works for zeroblobs
+#
+ifcapable bloblit&&subquery&&compound {
+  do_test zeroblob-3.1 {
+    execsql {
+      SELECT count(DISTINCT a) FROM (
+        SELECT x'00000000000000000000' AS a
+        UNION ALL
+        SELECT zeroblob(10) AS a
+      )
+    }
+  } {1}
+}
+
+# Concatentation works with zeroblob
+#
+ifcapable bloblit {
+  do_test zeroblob-4.1 {
+    execsql {
+      SELECT hex(zeroblob(2) || x'61')
+    }
+  } {000061}
+}
+
+# Check various CAST(...) operations on zeroblob.
+#
+do_test zeroblob-5.1 {
+  execsql {
+    SELECT CAST (zeroblob(100) AS REAL);
+  }
+} {0.0}
+do_test zeroblob-5.2 {
+  execsql {
+    SELECT CAST (zeroblob(100) AS INTEGER);
+  }
+} {0}
+do_test zeroblob-5.3 {
+  execsql {
+    SELECT CAST (zeroblob(100) AS TEXT);
+  }
+} {{}}
+do_test zeroblob-5.4 {
+  execsql {
+    SELECT CAST(zeroblob(100) AS BLOB);
+  }
+} [execsql {SELECT zeroblob(100)}]
+  
+
+# Check for malicious use of zeroblob.  Make sure nothing crashes.
+#
+do_test zeroblob-6.1.1 { 
+  execsql {select zeroblob(-1)} 
+} {{}} 
+do_test zeroblob-6.1.2 { 
+  execsql {select zeroblob(-10)} 
+} {{}} 
+do_test zeroblob-6.1.3 { 
+  execsql {select zeroblob(-100)} 
+} {{}} 
+do_test zeroblob-6.2 { 
+  execsql {select length(zeroblob(-1))} 
+} {0} 
+do_test zeroblob-6.3 { 
+  execsql {select zeroblob(-1)|1} 
+} {1} 
+do_test zeroblob-6.4 { 
+  catchsql {select length(zeroblob(2147483648))} 
+} {1 {string or blob too big}} 
+do_test zeroblob-6.5 { 
+  catchsql {select zeroblob(2147483648)} 
+} {1 {string or blob too big}}
+do_test zeroblob-6.6 {
+  execsql {select hex(zeroblob(-1))}
+} {{}}
+do_test zeroblob-6.7 {
+  execsql {select typeof(zeroblob(-1))}
+} {blob}
+
+# Test bind_zeroblob()
+#
+sqlite3_memory_highwater 1
+unset -nocomplain memused
+set memused [sqlite3_memory_used]
+do_test zeroblob-7.1 {
+  set ::STMT [sqlite3_prepare $::DB "SELECT length(?)" -1 DUMMY]
+  set ::sqlite3_max_blobsize 0
+  sqlite3_bind_zeroblob $::STMT 1 450000
+  sqlite3_step $::STMT
+} {SQLITE_ROW}
+do_test zeroblob-7.2 {
+  sqlite3_column_int $::STMT 0
+} {450000}
+do_test zeroblob-7.3 {
+  sqlite3_finalize $::STMT
+} {SQLITE_OK}
+ifcapable incrblob {
+  do_test zeroblob-7.4 {
+    set ::sqlite3_max_blobsize
+  } {0}
+  do_test zeroblob-7.5 {
+    expr {[sqlite3_memory_highwater]<$::memused+10000}
+  } {1}
+}
+
+# Test that MakeRecord can handle a value with some real content
+# and a zero-blob tail.
+#
+do_test zeroblob-8.1 {
+  llength [execsql {
+    SELECT 'hello' AS a, zeroblob(10) as b from t1 ORDER BY a, b;
+  }]
+} {8}
+
+
+# Ticket #3965
+# zeroblobs on either size of an IN operator
+#
+do_test zeroblob-9.1 {
+  db eval {SELECT x'0000' IN (x'000000')}
+} {0}
+do_test zeroblob-9.2 {
+  db eval {SELECT x'0000' IN (x'0000')}
+} {1}
+do_test zeroblob-9.3 {
+  db eval {SELECT zeroblob(2) IN (x'000000')}
+} {0}
+do_test zeroblob-9.4 {
+  db eval {SELECT zeroblob(2) IN (x'0000')}
+} {1}
+do_test zeroblob-9.5 {
+  db eval {SELECT x'0000' IN (zeroblob(3))}
+} {0}
+do_test zeroblob-9.6 {
+  db eval {SELECT x'0000' IN (zeroblob(2))}
+} {1}
+do_test zeroblob-9.7 {
+  db eval {SELECT zeroblob(2) IN (zeroblob(3))}
+} {0}
+do_test zeroblob-9.8 {
+  db eval {SELECT zeroblob(2) IN (zeroblob(2))}
+} {1}
+
+# Oversized zeroblob records
+#
+do_test zeroblob-10.1 {
+  db eval {
+    CREATE TABLE t10(a,b,c);
+  }
+  catchsql {INSERT INTO t10 VALUES(zeroblob(1e9),zeroblob(1e9),zeroblob(1e9))}
+} {1 {string or blob too big}}
+
+#-------------------------------------------------------------------------
+# Test the zeroblob() function on its own with negative or oversized 
+# arguments.
+#
+do_execsql_test 11.0 { 
+  SELECT length(zeroblob(-1444444444444444));
+} {0}
+do_catchsql_test 11.1 { 
+  SELECT zeroblob(5000 * 1024 * 1024);
+} {1 {string or blob too big}}
+do_catchsql_test 11.2 { 
+  SELECT quote(zeroblob(5000 * 1024 * 1024));
+} {1 {string or blob too big}}
+do_catchsql_test 11.3 { 
+  SELECT quote(zeroblob(-1444444444444444));
+} {0 X''}
+do_catchsql_test 11.4 {
+  SELECT quote(test_zeroblob(-1));
+} {0 X''}
+
+#-------------------------------------------------------------------------
+# Test the sqlite3_bind_zeroblob64() API.
+#
+proc bind_and_run {stmt nZero} {
+  sqlite3_bind_zeroblob64 $stmt 1 $nZero
+  sqlite3_step $stmt
+  set ret [sqlite3_column_int $stmt 0]
+  sqlite3_reset $stmt
+  set ret
+}
+set stmt [sqlite3_prepare db "SELECT length(?)" -1 dummy]
+
+do_test 12.1 { bind_and_run $stmt 40 } 40
+do_test 12.2 { bind_and_run $stmt  0 }  0
+do_test 12.3 { bind_and_run $stmt 1000 } 1000
+
+do_test 12.4 { 
+  list [catch { bind_and_run $stmt [expr 5000 * 1024 * 1024] } msg] $msg 
+} {1 SQLITE_TOOBIG}
+do_test 12.5 {
+  sqlite3_step $stmt
+  set ret [sqlite3_column_int $stmt 0]
+  sqlite3_reset $stmt
+  set ret
+} {1000}
+
+sqlite3_finalize $stmt
+
+# 2019-01-25 https://sqlite.org/src/tktview/bb4bdb9f7f654b0bb9f34cfbac
+# Zeroblob truncated by an index on expression
+#
+do_execsql_test 13.100 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a,b,c);
+  CREATE INDEX t1bbc ON t1(b, b+c);
+  INSERT INTO t1(a,b,c) VALUES(1,zeroblob(8),3);
+  SELECT a, quote(b), length(b), c FROM t1;
+} {1 X'0000000000000000' 8 3}
+
+test_restore_config_pagecache
+finish_test
diff --git a/test/zeroblobfault.test b/test/zeroblobfault.test
new file mode 100644
index 0000000000000000000000000000000000000000..0ae5beae017b32782c5d5e5fff41495843dc14be
--- /dev/null
+++ b/test/zeroblobfault.test
@@ -0,0 +1,28 @@
+# 2021 November 8
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+set testprefix zeroblobfault
+set quoted_res [db one { SELECT quote(zeroblob(2000)) }]
+
+do_faultsim_test 1 -prep {
+  sqlite3 db test.db
+} -body {
+  execsql { SELECT quote(zeroblob(2000)) }
+} -test {
+  faultsim_test_result [list 0 $::quoted_res]
+}
+
+finish_test
diff --git a/test/zerodamage.test b/test/zerodamage.test
new file mode 100644
index 0000000000000000000000000000000000000000..83bae737dfa25988ed9103dd7fc5cbceb27177cf
--- /dev/null
+++ b/test/zerodamage.test
@@ -0,0 +1,122 @@
+# 2011 December 21
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# 
+# This file implements tests of the SQLITE_IOCAP_POWERSAFE_OVERWRITE property
+# and the SQLITE_FCNTL_POWERSAFE_OVERWRITE file-control for manipulating it.
+#
+# The name of this file comes from the fact that we used to call the
+# POWERSAFE_OVERWRITE property ZERO_DAMAGE.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix zerodamage
+
+ifcapable !vtab {
+  finish_test
+  return
+}
+
+# POWERSAFE_OVERWRITE defaults to true
+#
+do_test zerodamage-1.0 {
+  file_control_powersafe_overwrite db -1
+} {0 1}
+
+# Check the ability to turn zero-damage on and off.
+#
+do_test zerodamage-1.1 {
+  file_control_powersafe_overwrite db 0
+  file_control_powersafe_overwrite db -1
+} {0 0}
+do_test zerodamage-1.2 {
+  file_control_powersafe_overwrite db 1
+  file_control_powersafe_overwrite db -1
+} {0 1}
+
+# Run a transaction with zero-damage on, a small page size and a much larger
+# sectorsize.  Verify that the maximum journal size is small - that the
+# rollback journal is not being padded.
+#
+do_test zerodamage-2.0 {
+  db close
+  testvfs tv -default 1
+  tv sectorsize 8192
+  sqlite3 db file:test.db?psow=TRUE -uri 1
+  unset -nocomplain ::max_journal_size
+  set ::max_journal_size 0
+  proc xDeleteCallback {method file args} {
+    set sz [file size $file]
+    if {$sz>$::max_journal_size} {set ::max_journal_size $sz}
+  }
+  tv filter xDelete
+  tv script xDeleteCallback
+  load_static_extension db wholenumber
+  db eval {
+    PRAGMA page_size=1024;
+    PRAGMA journal_mode=DELETE;
+    PRAGMA cache_size=5;
+    CREATE VIRTUAL TABLE nums USING wholenumber;
+    CREATE TABLE t1(x, y);
+    INSERT INTO t1 SELECT value, randomblob(100) FROM nums
+                    WHERE value BETWEEN 1 AND 400;
+  }
+  set ::max_journal_size 0
+  db eval {
+    UPDATE t1 SET y=randomblob(50) WHERE x=123;
+  }
+  concat [file_control_powersafe_overwrite db -1] [set ::max_journal_size]
+} [list 0 1 [expr ([atomic_batch_write test.db]==0)*2576]]
+
+# Repeat the previous step with zero-damage turned off.  This time the
+# maximum rollback journal size should be much larger.
+#
+do_test zerodamage-2.1 {
+  set ::max_journal_size 0
+  db close
+  sqlite3 db file:test.db?psow=FALSE -uri 1
+  db eval {
+    UPDATE t1 SET y=randomblob(50) WHERE x=124;
+  }
+  concat [file_control_powersafe_overwrite db -1] [set ::max_journal_size]
+} [list 0 0 [expr ([atomic_batch_write test.db]==0)*24704]]
+
+if {[wal_is_capable]} {
+  # Run a WAL-mode transaction with POWERSAFE_OVERWRITE on to verify that the
+  # WAL file does not get too big.
+  #
+  do_test zerodamage-3.0 {
+    db eval {
+       PRAGMA journal_mode=WAL;
+    }
+    db close
+    sqlite3 db file:test.db?psow=TRUE -uri 1
+    db eval {
+       UPDATE t1 SET y=randomblob(50) WHERE x=124;
+    }
+    file size test.db-wal
+  } {1080}
+
+  # Repeat the previous with POWERSAFE_OVERWRITE off.  Verify that the WAL file
+  # is padded.
+  #
+  do_test zerodamage-3.1 {
+    db close
+    sqlite3 db file:test.db?psow=FALSE -uri 1
+    db eval {
+       PRAGMA synchronous=FULL;
+       UPDATE t1 SET y=randomblob(50) WHERE x=124;
+    }
+    file size test.db-wal
+  } {16800}
+}
+
+finish_test
diff --git a/test/zipfile.test b/test/zipfile.test
new file mode 100644
index 0000000000000000000000000000000000000000..0f854a6768cde6669e73aa313c4bcdc0a73ac997
--- /dev/null
+++ b/test/zipfile.test
@@ -0,0 +1,890 @@
+# 2017 December 9
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+if {$tcl_version<8.6} {
+  puts "Requires TCL 8.6 or later"
+  return
+}
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix zipfile
+
+ifcapable !vtab {
+  finish_test; return
+}
+if {[catch {load_static_extension db zipfile} error]} {
+  puts "Skipping zipfile tests, hit load error: $error"
+  finish_test; return
+}
+if {[catch {load_static_extension db fileio} error]} {
+  puts "Skipping zipfile tests, hit load error: $error"
+  finish_test; return
+}
+
+proc readfile {f} {
+  set fd [open $f]
+  fconfigure $fd -translation binary
+  set data [read $fd]
+  close $fd
+  set data
+}
+
+unset -nocomplain ::UNZIP
+
+if {[catch {exec unzip} msg]==0 && \
+    [regexp -line {^UnZip \d+\.\d+ .*? Info-ZIP\.} $msg]} {
+  set ::UNZIP unzip
+  proc fix_stat_mode {name mode} {
+    if {$::tcl_platform(platform)=="windows"} {
+      #
+      # NOTE: Set or unset the write bits of the file permissions
+      #       based on the read-only attribute because the Win32
+      #       version of UnZip does this.
+      #
+      set writebits 0x12; # 0o22
+      set result $mode
+      if {[file attributes $name -readonly]} {
+        set result [expr {$result | $writebits}]
+      } else {
+        set result [expr {$result & ~$writebits}]
+      }
+      return $result
+    } else {
+      return $mode
+    }
+  }
+  proc do_unzip {file} {
+    forcedelete test_unzip
+    file mkdir test_unzip
+    exec $::UNZIP -d test_unzip $file
+
+    db func modefix fix_stat_mode
+
+    set res [db eval {
+      SELECT replace(name,'test_unzip/',''),modefix(name,mode),mtime,data
+      FROM fsdir('test_unzip') 
+      WHERE name!='test_unzip'
+      ORDER BY name
+    }]
+    set res
+  }
+}
+
+
+# The argument is a blob (not a hex string) containing a zip archive.
+# This proc removes the extended timestamp fields from the archive
+# and returns the result.
+#
+proc remove_timestamps {blob} {
+  set hex [binary encode hex $blob]
+  set hex [string map {55540500 00000500} $hex]
+  binary decode hex $hex
+}
+
+
+# Argument $file is the name of a zip archive on disk. This function
+# executes test cases to check that the results of each of the following 
+# are the same:
+#
+#         SELECT * FROM zipfile($file)
+#         SELECT * FROM zipfile( readfile($file) )
+#         SELECT * FROM zipfile( 
+#           (SELECT zipfile(name,mode,mtime,data,method) FROM zipfile($file))
+#         )
+#
+proc do_zipfile_blob_test {tn file} {
+
+  db func r readfile
+  set q1 {SELECT name,mode,mtime,method,quote(data) FROM zipfile($file)}
+  set q2 {SELECT name,mode,mtime,method,quote(data) FROM zipfile( r($file) )}
+  set q3 {SELECT name,mode,mtime,method,quote(data) FROM zipfile(
+    ( SELECT zipfile(name,mode,mtime,data,method) FROM zipfile($file) )
+  )}
+
+
+  set r1 [db eval $q1]
+  set r2 [db eval $q2]
+  set r3 [db eval $q3]
+  #puts $r1
+  #puts $r2
+  #puts $r3
+
+  uplevel [list do_test $tn.1 [list set {} $r2] $r1]
+  uplevel [list do_test $tn.2 [list set {} $r3] $r1]
+}
+
+# Argument $file is a zip file on disk. This command runs tests to:
+#
+#   1. Unpack the archive with unix command [unzip] and compare the 
+#      results to reading the same archive using the zipfile() table
+#      valued function.
+#
+#   2. Creates a new archive with the same contents using the zipfile()
+#      aggregate function as follows:
+#
+#      SELECT writefile('test_unzip.zip',
+#          ( SELECT zipfile(name,mode,mtime,data,method) FROM zipfile($file) )
+#      );
+#
+#      Then tests that unpacking the new archive using [unzip] produces
+#      the same results as in (1).
+#
+proc do_unzip_test {tn file} {
+  db func sss strip_slash
+
+  db eval {
+    SELECT writefile('test_unzip.zip',
+        ( SELECT zipfile(name,mode,mtime,data,method) FROM zipfile($file) )
+    );
+  }
+
+  set r1 [db eval { 
+    SELECT sss(name),mode,mtime,data FROM zipfile($file) ORDER BY name
+  }]
+  set r2 [do_unzip $file]
+  set r3 [do_unzip test_unzip.zip]
+
+  uplevel [list do_test $tn.1 [list set {} $r2] $r1]
+  uplevel [list do_test $tn.2 [list set {} $r3] $r1]
+}
+proc strip_slash {in} { regsub {/$} $in {} }
+
+proc do_zip_tests {tn file} {
+  uplevel do_zipfile_blob_test $tn.1 $file
+  if {[info exists ::UNZIP]} {
+    uplevel do_unzip_test $tn.2 $file
+  }
+}
+
+forcedelete test.zip
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE temp.zz USING zipfile('test.zip');
+  PRAGMA table_info(zz);
+} {
+  0 name {} 1 {} 1 
+  1 mode {} 0 {} 0 
+  2 mtime {} 0 {} 0 
+  3 sz {} 0 {} 0 
+  4 rawdata {} 0 {} 0
+  5 data {} 0 {} 0
+  6 method {} 0 {} 0
+}
+
+do_catchsql_test 1.1.0.1 {
+  INSERT INTO zz(name, mode, mtime, sz, rawdata, method) 
+  VALUES('f.txt', '-rw-r--r--', 1000000000, 5, 'abcde', 0);
+} {1 {rawdata must be NULL}}
+do_catchsql_test 1.1.0.2 {
+  INSERT INTO zz(name, mtime, sz, data, method) 
+  VALUES('g.txt', 1000000002, 5, '12345', 0);
+} {1 {sz must be NULL}}
+do_catchsql_test 1.1.0.3 {
+  INSERT INTO zz(name, mtime, rawdata, method) 
+  VALUES('g.txt', 1000000002, '12345', 0);
+} {1 {rawdata must be NULL}}
+do_catchsql_test 1.1.0.4 {
+  INSERT INTO zz(name, data, method) 
+  VALUES('g.txt', '12345', 7);
+} {1 {unknown compression method: 7}}
+
+do_execsql_test 1.1.1 {
+  INSERT INTO zz(name, mode, mtime, data, method) 
+  VALUES('f.txt', '-rw-r--r--', 1000000000, 'abcde', 0);
+}
+do_execsql_test 1.1.2 {
+  INSERT INTO zz(name, mode, mtime, data, method) 
+  VALUES('g.txt', NULL, 1000000002, '12345', 0);
+}
+
+do_execsql_test 1.2 {
+  SELECT name, mtime, data FROM zipfile('test.zip')
+} {
+  f.txt 1000000000 abcde 
+  g.txt 1000000002 12345
+}
+do_zip_tests 1.2a test.zip
+
+do_execsql_test 1.3 {
+  INSERT INTO zz(name, mode, mtime, data) VALUES('h.txt', 
+    '-rw-r--r--', 1000000004, 'aaaaaaaaaabbbbbbbbbb'
+  );
+}
+do_zip_tests 1.3a test.zip
+
+do_execsql_test 1.4 {
+  SELECT name, mtime, data, method FROM zipfile('test.zip');
+} {
+  f.txt 1000000000 abcde 0
+  g.txt 1000000002 12345 0
+  h.txt 1000000004 aaaaaaaaaabbbbbbbbbb 8
+}
+
+ifcapable json1 {
+  do_execsql_test 1.4.1 {
+    SELECT name, json_extract( zipfile_cds(z) , '$.crc32')!=0
+    FROM zipfile('test.zip');
+  } {
+    f.txt 1
+    g.txt 1
+    h.txt 1
+  }
+}
+do_catchsql_test 1.4.2 {
+  SELECT zipfile_cds(mode) FROM zipfile('test.zip');
+} {0 {{} {} {}}}
+
+do_execsql_test 1.5.1 {
+  BEGIN;
+    INSERT INTO zz(name, mode, mtime, data, method)
+    VALUES('i.txt', '-rw-r--r--', 1000000006, 'zxcvb', 0);
+    SELECT name FROM zz;
+  COMMIT;
+} {f.txt g.txt h.txt i.txt}
+do_execsql_test 1.5.2 {
+  SELECT name FROM zz;
+} {f.txt g.txt h.txt i.txt}
+do_execsql_test 1.5.3 {
+  SELECT data FROM zz WHERE name='i.txt';
+} {zxcvb}
+
+do_execsql_test 1.6.0 {
+  DELETE FROM zz WHERE name='g.txt';
+  SELECT name FROM zz;
+} {f.txt h.txt i.txt}
+
+do_execsql_test 1.6.1 {
+  SELECT name, mode, mtime, data, method FROM zipfile('test.zip');
+} {
+  f.txt 33188 1000000000 abcde 0
+  h.txt 33188 1000000004 aaaaaaaaaabbbbbbbbbb 8
+  i.txt 33188 1000000006 zxcvb 0
+}
+do_zip_tests 1.6.1a test.zip
+
+do_execsql_test 1.6.2 {
+  UPDATE zz SET mtime=4 WHERE name='i.txt';
+  SELECT name, mode, mtime, data, method FROM zipfile('test.zip');
+} {
+  f.txt 33188 1000000000 abcde 0
+  h.txt 33188 1000000004 aaaaaaaaaabbbbbbbbbb 8
+  i.txt 33188 4 zxcvb 0
+}
+
+if {$::tcl_platform(platform)=="unix"} {
+  set modes -rw-r--r-x
+  set perms 33189
+} else {
+  set modes -rw-r--r--; # no execute bits on Win32
+  set perms 33188
+}
+
+do_execsql_test 1.6.3 {
+  UPDATE zz SET mode=$modes WHERE name='h.txt';
+  SELECT name, mode, mtime, data, method FROM zipfile('test.zip');
+} [string map [list %perms% $perms] {
+  f.txt 33188 1000000000 abcde 0
+  h.txt %perms% 1000000004 aaaaaaaaaabbbbbbbbbb 8
+  i.txt 33188 4 zxcvb 0
+}]
+do_zip_tests 1.6.3a test.zip
+
+do_execsql_test 1.6.4 {
+  UPDATE zz SET name = 'blue.txt' WHERE name='f.txt';
+  SELECT name, mode, mtime, data, method FROM zipfile('test.zip');
+} [string map [list %perms% $perms] {
+  blue.txt 33188 1000000000 abcde 0
+  h.txt %perms% 1000000004 aaaaaaaaaabbbbbbbbbb 8
+  i.txt 33188 4 zxcvb 0
+}]
+do_zip_tests 1.6.4a test.zip
+
+do_execsql_test 1.6.5 {
+  UPDATE zz SET data = 'edcba' WHERE name='blue.txt';
+  SELECT name, mode, mtime, data, method FROM zipfile('test.zip');
+} [string map [list %perms% $perms] {
+  blue.txt 33188 1000000000 edcba 0
+  h.txt %perms% 1000000004 aaaaaaaaaabbbbbbbbbb 8
+  i.txt 33188 4 zxcvb 0
+}]
+
+do_execsql_test 1.6.6 {
+  UPDATE zz SET mode=NULL, data = NULL WHERE name='blue.txt';
+  SELECT name, mode, mtime, data, method FROM zipfile('test.zip');
+} [string map [list %perms% $perms] {
+  blue.txt/ 16877 1000000000 {} 0
+  h.txt %perms% 1000000004 aaaaaaaaaabbbbbbbbbb 8
+  i.txt 33188 4 zxcvb 0
+}]
+
+do_catchsql_test 1.6.7 {
+  UPDATE zz SET data=NULL WHERE name='i.txt'
+} {1 {zipfile: mode does not match data}}
+do_execsql_test 1.6.8 {
+  SELECT name, mode, mtime, data, method FROM zipfile('test.zip');
+} [string map [list %perms% $perms] {
+  blue.txt/ 16877 1000000000 {} 0
+  h.txt %perms% 1000000004 aaaaaaaaaabbbbbbbbbb 8
+  i.txt 33188 4 zxcvb 0
+}]
+
+do_execsql_test 1.6.9 {
+  UPDATE zz SET data = '' WHERE name='i.txt';
+  SELECT name,mode,mtime,data,method from zipfile('test.zip');
+} [string map [list %perms% $perms] {
+  blue.txt/ 16877 1000000000 {} 0
+  h.txt %perms% 1000000004 aaaaaaaaaabbbbbbbbbb 8
+  i.txt 33188 4 {} 0
+}]
+
+do_execsql_test 1.6.10 {
+  SELECT a.name, a.data 
+  FROM zz AS a, zz AS b 
+  WHERE a.name=+b.name AND +a.mode=b.mode
+} {
+  blue.txt/ {}
+  h.txt aaaaaaaaaabbbbbbbbbb
+  i.txt {}
+}
+
+do_execsql_test 1.6.11 {
+  SELECT name, data FROM zz WHERE name LIKE '%txt'
+} {
+  h.txt aaaaaaaaaabbbbbbbbbb
+  i.txt {}
+}
+
+do_execsql_test 1.7 {
+  DELETE FROM zz;
+  SELECT * FROM zz;
+} {}
+
+#-------------------------------------------------------------------------
+db close
+forcedelete test.zip
+reset_db
+load_static_extension db fileio
+load_static_extension db zipfile
+do_execsql_test 2.1 {
+  CREATE VIRTUAL TABLE zzz USING zipfile('test.zip');
+  INSERT INTO zzz(name, mode) VALUES('dirname', 'drwxr-xr-x');
+  SELECT name, mode, data FROM zzz;
+} {dirname/ 16877 {}}
+do_execsql_test 2.2 {
+  INSERT INTO zzz(name, data) VALUES('dirname2', NULL);
+  INSERT INTO zzz(name, data) VALUES('dirname2/file1.txt', 'abcdefghijklmnop');
+  SELECT name, mode, data FROM zzz;
+} {
+  dirname/ 16877 {}
+  dirname2/ 16877 {}
+  dirname2/file1.txt 33188 abcdefghijklmnop
+}
+
+do_catchsql_test 2.3 {
+  UPDATE zzz SET name = 'dirname3' WHERE name = 'dirname/';
+} {0 {}}
+do_execsql_test 2.4 {
+  SELECT name, mode, data FROM zzz;
+} {
+  dirname3/ 16877 {}
+  dirname2/ 16877 {}
+  dirname2/file1.txt 33188 abcdefghijklmnop
+}
+do_zip_tests 2.4a test.zip
+
+# Check that the [unzip] utility can unpack our archive.
+#
+if {[info exists ::UNZIP]} {
+  do_test 2.5.1 {
+    forcedelete dirname
+    forcedelete dirname2
+    if {$::tcl_platform(platform)=="unix"} {
+      set null /dev/null
+    } else {
+      set null NUL
+    }
+    set rc [catch { exec $::UNZIP test.zip > $null } msg]
+    list $rc $msg
+  } {0 {}}
+  do_test 2.5.2 { file isdir dirname3 } 1
+  do_test 2.5.3 { file isdir dirname2 } 1
+  do_test 2.5.4 { file isdir dirname2/file1.txt } 0
+  do_test 2.5.5 { 
+    set fd [open dirname2/file1.txt]
+    set data [read $fd]
+    close $fd
+    set data
+  } {abcdefghijklmnop}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+forcedelete test.zip
+load_static_extension db zipfile
+load_static_extension db fileio
+
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE temp.x1 USING zipfile('test.zip');
+  INSERT INTO x1(name, data) VALUES('dir1/', NULL);
+  INSERT INTO x1(name, data) VALUES('file1', '1234');
+  INSERT INTO x1(name, data) VALUES('dir1/file2', '5678');
+}
+foreach {tn fname} {
+  1 dir1
+  2 file1
+  3 dir1/file2
+} {
+  do_catchsql_test 3.1.$tn.0 {
+    INSERT INTO x1(name, data) VALUES($fname, NULL);
+  } [list 1 "duplicate name: \"$fname/\""]
+  do_catchsql_test 3.1.$tn.1 {
+    INSERT INTO x1(name, data) VALUES($fname || '/', NULL);
+  } [list 1 "duplicate name: \"$fname/\""]
+  do_catchsql_test 3.1.$tn.2 {
+    INSERT INTO x1(name, data) VALUES($fname, 'abcd');
+  } [list 1 "duplicate name: \"$fname\""]
+}
+
+do_catchsql_test 3.2 {
+  SELECT rowid FROM x1
+} {1 {no such column: rowid}}
+
+#-------------------------------------------------------------------------
+# Test some error conditions.
+#
+do_catchsql_test 4.1 {
+  CREATE VIRTUAL TABLE yyy USING zipfile();
+} {1 {zipfile constructor requires one argument}}
+do_catchsql_test 4.2 {
+  CREATE VIRTUAL TABLE yyy USING zipfile('test.zip', 'test.zip');
+} {1 {zipfile constructor requires one argument}}
+
+do_catchsql_test 4.3 {
+  SELECT * FROM zipfile()
+} {1 {zipfile() function requires an argument}}
+
+do_catchsql_test 4.4 {
+  SELECT * FROM zipfile('/path/that/does/not/exist')
+} {1 {cannot open file: /path/that/does/not/exist}}
+
+foreach {tn mode} {
+  1 abcd
+  2 brwxrwxrwx
+  3 lrwxrrxrwx
+} {
+  do_catchsql_test 4.5.$tn {
+    WITH m(m) AS ( SELECT $mode)
+    SELECT zipfile('a.txt', m, 1000, 'xyz') FROM m
+  } [list 1 "zipfile: parse error in mode: $mode"]
+}
+
+do_catchsql_test 4.6 {
+  WITH c(name,data) AS ( SELECT 'a.txt', 'abc')
+  SELECT zipfile(name) FROM c
+} {1 {wrong number of arguments to function zipfile()}}
+
+do_catchsql_test 4.7 {
+  WITH c(name,data) AS ( 
+    SELECT 'a.txt', 'abc' UNION ALL
+    SELECT NULL, 'def'
+  )
+  SELECT zipfile(name,data) FROM c
+} {1 {first argument to zipfile() must be non-NULL}}
+
+do_catchsql_test 4.8 {
+  WITH c(name,data,method) AS ( 
+    SELECT 'a.txt', 'abc', 0
+    UNION SELECT 'b.txt', 'def', 8
+    UNION SELECT 'c.txt', 'ghi', 16
+  )
+  SELECT zipfile(name,NULL,NULL,data,method) FROM c
+} {1 {illegal method value: 16}}
+
+do_catchsql_test 4.9 {
+  WITH c(name,data) AS ( 
+    SELECT 'a.txt', 'abc'
+    UNION SELECT 'b.txt', 'def'
+    UNION SELECT 'c.txt/', 'ghi'
+  )
+  SELECT zipfile(name,NULL,NULL,data) FROM c
+} {1 {non-directory name must not end with /}}
+
+#--------------------------------------------------------------------------
+
+db func rt remove_timestamps
+do_execsql_test 5.0 {
+  WITH c(name,mtime,data) AS (
+    SELECT 'a.txt', 946684800, 'abc'
+  )
+  SELECT name,mtime,data FROM zipfile(
+    ( SELECT rt( zipfile(name,NULL,mtime,data,NULL) ) FROM c )
+  )
+} {
+  a.txt 946684800 abc
+}
+
+if {[info exists ::UNZIP]} {
+ifcapable datetime {
+  forcedelete test1.zip test2.zip
+  do_test 6.0 {
+    execsql {
+      WITH c(name,mtime,data) AS (
+        SELECT 'a.txt', 946684800, 'abc' UNION ALL
+        SELECT 'b.txt', 1000000000, 'abc' UNION ALL
+        SELECT 'c.txt', 1111111000, 'abc'
+      )
+      SELECT writefile('test1.zip', rt( zipfile(name, NULL, mtime, data) ) ),
+             writefile('test2.zip',   ( zipfile(name, NULL, mtime, data) ) ) 
+      FROM c;
+    }
+    forcedelete test_unzip
+    file mkdir test_unzip
+    exec $::UNZIP -d test_unzip test1.zip
+
+    db eval {
+      SELECT name, strftime('%s', mtime, 'unixepoch', 'localtime') 
+      FROM fsdir('test_unzip') WHERE name!='test_unzip'
+      ORDER BY name
+    }
+  } [list {*}{
+    test_unzip/a.txt 946684800
+    test_unzip/b.txt 1000000000 
+    test_unzip/c.txt 1111111000 
+  }]
+
+  # fsdir() issue reported on the mailing list on 2018-03-14 by Jack Thaw.
+  do_test 6.0b {
+    db eval {
+      SELECT sum(name LIKE '%/a.txt')
+      FROM (VALUES(1),(2),(3)) CROSS JOIN fsdir('test_unzip')
+    }
+  } {3}
+
+  do_execsql_test 6.1 {
+    SELECT name, mtime, data FROM zipfile('test1.zip')
+  } {
+    a.txt 946684800   abc
+    b.txt 1000000000  abc
+    c.txt 1111111000  abc
+  }
+
+  do_test 6.2 {
+    forcedelete test_unzip
+    file mkdir test_unzip
+    exec $::UNZIP -d test_unzip test2.zip
+
+    db eval {
+      SELECT name, mtime 
+      FROM fsdir('test_unzip') WHERE name!='test_unzip'
+      ORDER BY name
+    }
+  } [list {*}{
+    test_unzip/a.txt 946684800
+    test_unzip/b.txt 1000000000 
+    test_unzip/c.txt 1111111000 
+  }]
+
+  do_execsql_test 6.3 {
+    SELECT name, mtime, sz, rawdata, data FROM zipfile('test2.zip')
+  } {
+    a.txt 946684800   3 abc abc
+    b.txt 1000000000  3 abc abc
+    c.txt 1111111000  3 abc abc
+  }
+}
+}
+
+#-------------------------------------------------------------------------
+# Force an IO error by truncating the zip archive to zero bytes in size
+# while it is being read.
+forcedelete test.zip
+do_test 7.0 {
+  execsql {
+    WITH c(name,data) AS (
+        SELECT '1', randomblob(1000000) UNION ALL
+        SELECT '2', randomblob(1000000) UNION ALL
+        SELECT '3', randomblob(1000000) 
+    )
+    SELECT writefile('test.zip', zipfile(name, data) ) FROM c;
+  }
+
+  list [catch {
+    db eval { SELECT name, data FROM zipfile('test.zip') } {
+      if {$name==2} { close [open test.zip w+] }
+    }
+  } msg] $msg
+} {1 {error in fread()}}
+
+forcedelete test.zip
+do_execsql_test 8.0.1 {
+  CREATE VIRTUAL TABLE zz USING zipfile('test.zip');
+  BEGIN;
+    INSERT INTO zz(name, data) VALUES('a.txt', '1');
+    INSERT INTO zz(name, data) VALUES('b.txt', '2');
+    INSERT INTO zz(name, data) VALUES('c.txt', '1');
+    INSERT INTO zz(name, data) VALUES('d.txt', '2');
+    SELECT name, data FROM zz;
+} {
+  a.txt 1 b.txt 2 c.txt 1 d.txt 2
+}
+do_test 8.0.2 {
+  db eval { SELECT name, data FROM zz } {
+    if { $data=="2" } { db eval { DELETE FROM zz WHERE name=$name } }
+  }
+  execsql { SELECT name, data FROM zz } 
+} {a.txt 1 c.txt 1}
+do_test 8.0.3 {
+  db eval { SELECT name, data FROM zz } {
+    db eval { DELETE FROM zz WHERE name=$name }
+  }
+  execsql { SELECT name, data FROM zz } 
+} {}
+execsql COMMIT
+
+catch { forcedelete test_unzip }
+catch { file mkdir test_unzip }
+do_execsql_test 8.1.1 {
+  CREATE VIRTUAL TABLE nogood USING zipfile('test_unzip');
+}
+do_catchsql_test 8.1.2 {
+  INSERT INTO nogood(name, data) VALUES('abc', 'def');
+} {1 {zipfile: failed to open file test_unzip for writing}}
+
+do_execsql_test 8.2.1 {
+  DROP TABLE nogood;
+  BEGIN;
+    CREATE VIRTUAL TABLE nogood USING zipfile('test_unzip');
+}
+do_catchsql_test 8.2.2 {
+    INSERT INTO nogood(name, data) VALUES('abc', 'def');
+} {1 {zipfile: failed to open file test_unzip for writing}}
+do_execsql_test 8.2.3 {
+  COMMIT;
+}
+
+forcedelete test.zip
+do_execsql_test 8.3.1 {
+  BEGIN;
+    CREATE VIRTUAL TABLE ok USING zipfile('test.zip');
+    INSERT INTO ok(name, data) VALUES ('sqlite3', 'elf');
+  COMMIT;
+}
+
+#-------------------------------------------------------------------------
+# Test that the zipfile aggregate correctly adds and removes "/" from
+# the ends of directory file names.
+do_execsql_test 9.0 {
+  WITH src(nm) AS (
+    VALUES('dir1') UNION ALL
+    VALUES('dir2/') UNION ALL
+    VALUES('dir3//') UNION ALL
+    VALUES('dir4///') UNION ALL
+    VALUES('/') 
+  )
+  SELECT name FROM zipfile((SELECT zipfile(nm, NULL) FROM src))
+} {dir1/ dir2/ dir3/ dir4/ /}
+
+#-------------------------------------------------------------------------
+# INSERT OR REPLACE and INSERT OR IGNORE
+#
+catch {db close}
+forcedelete test.zip test.db
+sqlite3 db :memory:
+load_static_extension db zipfile
+load_static_extension db fileio
+
+do_execsql_test 10.0 {
+  CREATE VIRTUAL TABLE z USING zipfile('test.zip');
+} {}
+do_catchsql_test 10.1 {
+  INSERT INTO z(name,data) VALUES('a0','one'),('a0','two');
+} {1 {duplicate name: "a0"}}
+do_execsql_test 10.2 {
+  SELECT name, data FROM z;
+} {a0 one}
+do_execsql_test 10.3 {
+  REPLACE INTO z(name,data) VALUES('a0','three'),('a0','four');
+} {}
+do_execsql_test 10.4 {
+  SELECT name, data FROM z;
+} {a0 four}
+do_execsql_test 10.5 {
+  INSERT OR IGNORE INTO z(name,data) VALUES('a0','five'),('a0','six');
+} {}
+do_execsql_test 10.6 {
+  SELECT name, data FROM z;
+} {a0 four}
+
+do_execsql_test 11.1 {
+  DELETE FROM z;
+} {}
+do_execsql_test 11.2 {
+  SELECT name, data FROM z;
+} {}
+do_execsql_test 11.3 {
+  INSERT INTO z (name,data) VALUES ('b0','one');
+  SELECT name, data FROM z;
+} {b0 one}
+do_execsql_test 11.4 {
+  UPDATE z SET name = 'b1' WHERE name = 'b0';
+  SELECT name, data FROM z;
+} {b1 one}
+do_execsql_test 11.5 {
+  INSERT INTO z (name,data) VALUES ('b0','one');
+  SELECT name, data FROM z ORDER BY name;
+} {b0 one b1 one}
+do_catchsql_test 11.6 {
+  UPDATE z SET name = 'b1' WHERE name = 'b0';
+} {1 {duplicate name: "b1"}}
+do_execsql_test 11.7 {
+  UPDATE z SET data = 'two' WHERE name = 'b0';
+  SELECT name, data FROM z ORDER BY name;
+} {b0 two b1 one}
+do_catchsql_test 11.8 {
+  UPDATE z SET name = 'b1';
+} {1 {duplicate name: "b1"}}
+do_catchsql_test 11.9 {
+  UPDATE z SET name = 'b2';
+} {1 {duplicate name: "b2"}}
+do_execsql_test 11.10 {
+  UPDATE z SET name = name;
+  SELECT name, data FROM z ORDER BY name;
+} {b0 two b2 one}
+do_execsql_test 11.11 {
+  UPDATE z SET name = name || 'suffix';
+  SELECT name, data FROM z ORDER BY name;
+} {b0suffix two b2suffix one}
+
+
+if {$tcl_platform(platform)!="windows"} {
+  do_test 12.0 {
+    catch { file delete -force subdir }
+    foreach {path sz} {
+      subdir/x1.txt     143
+      subdir/x2.txt     153
+    } {
+      set dir [file dirname $path]
+      catch { file mkdir $dir }
+      set fd [open $path w]
+      puts -nonewline $fd [string repeat 1 $sz]
+      close $fd
+    }
+  } {}
+  
+  do_execsql_test 12.1 {
+    SELECT name FROM fsdir('subdir') ORDER BY 1;
+  } {subdir subdir/x1.txt subdir/x2.txt}
+  
+  do_execsql_test 12.2 {
+    CREATE TABLE d AS SELECT 'subdir' d;
+    CREATE TABLE x AS SELECT 1 x;
+  }
+  
+  do_execsql_test 12.4 {
+    SELECT name FROM d JOIN x JOIN fsdir(d) ORDER BY 1;
+  } {subdir subdir/x1.txt subdir/x2.txt}
+
+  do_execsql_test 12.5 {
+    SELECT name FROM d JOIN x JOIN fsdir('.', d) ORDER BY 1;
+  } {. ./x1.txt ./x2.txt}
+}
+
+# 2019-12-18 Yongheng and Rui fuzzer
+#
+do_execsql_test 13.10 {
+  DROP TABLE IF EXISTS t0;
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t0(a,b,c,d,e,f,g);
+  REPLACE INTO t0(c,b,f) VALUES(10,10,10);
+  CREATE VIRTUAL TABLE t1 USING zipfile('h.zip');
+  REPLACE INTO t1 SELECT * FROM t0;
+  SELECT quote(name),quote(mode),quote(mtime),quote(sz),quote(rawdata),
+         quote(data),quote(method) FROM t1;
+} {'' 10 10 2 X'3130' X'3130' 0}
+
+# 2019-12-23 Yongheng and Rui fuzzer
+# Run using valgrind to see the problem.
+#
+do_execsql_test 14.10 {
+  DROP TABLE t1;
+  CREATE TABLE t1(x char);
+  INSERT INTO t1(x) VALUES('1');
+  INSERT INTO t1(x) SELECT zipfile(x, 'xyz') FROM t1;
+  INSERT INTO t1(x) SELECT zipfile(x, 'uvw') FROM t1;
+  SELECT count(*) FROM t1;
+  PRAGMA integrity_check;
+} {3 ok}
+
+# 2019-12-26 More problems in zipfile from the Yongheng and Rui fuzzer
+#
+do_execsql_test 15.10 {
+  DROP TABLE IF EXISTS t1;
+  CREATE VIRTUAL TABLE t1 USING zipfile(null);
+  REPLACE INTO t1 VALUES(null,null,0,null,null,null,null);
+} {}
+do_execsql_test 15.20 {
+  DROP TABLE IF EXISTS t2;
+  CREATE VIRTUAL TABLE t2 USING zipfile(null);
+  REPLACE INTO t2 values(null,null,null,null,null,10,null);
+} {}
+
+# 2020-01-02 Yongheng fuzzer discovery
+#
+do_catchsql_test 16.10 {
+  DELETE FROM zipfile;
+} {1 {zipfile: missing filename}}
+do_catchsql_test 16.20 {
+  REPLACE INTO zipfile VALUES(null,null,null,null,null,123,null);
+} {1 {zipfile: missing filename}}
+
+# 2021-04-22 forum https://sqlite.org/forum/forumpost/d82289d69f
+do_execsql_test 17.1 {
+  WITH vlist(x) AS (
+     VALUES(9223372036854775807),
+           (-9223372036854775808),
+           (9223372036854775806),
+           (-9223372036854775807)
+  )
+  SELECT DISTINCT typeof(zipfile(0,0,x,0)) FROM vlist;
+} {blob}
+
+# 2023-01-04
+# https://sqlite.org/forum/forumpost/d1c96a9032e564f8
+# Call to fopen() with a NULL filename.
+#
+do_catchsql_test 18.1 {
+  SELECT * FROM zipfile(NULL);
+} {1 {cannot open file: }}
+
+# 2023-05-03 https://sqlite.org/forum/info/f03f1e4c5a5c9959
+#
+do_test 19.1 {
+  sqlite3 db :memory:
+  load_static_extension db zipfile
+  forcedelete zipfile19.zip
+  db eval {
+    CREATE VIRTUAL TABLE t1 USING zipfile('zipfile19.zip');
+    INSERT INTO t1 DEFAULT VALUES;
+  }
+  db close
+  sqlite3 db :memory:
+  load_static_extension db zipfile
+  db eval {
+    CREATE VIRTUAL TABLE v0 USING zipfile('zipfile19.zip');
+    SAVEPOINT y;
+    DELETE FROM v0 WHERE 9;
+    INSERT INTO v0 DEFAULT VALUES;
+  }
+} {}
+forcedelete zipfile19.zip
+
+finish_test
diff --git a/test/zipfile2.test b/test/zipfile2.test
new file mode 100644
index 0000000000000000000000000000000000000000..5277cd58f882bbf331357dce8b8cba0faa30a9ba
--- /dev/null
+++ b/test/zipfile2.test
@@ -0,0 +1,246 @@
+# 2018 January 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+if {$tcl_version<8.6} {
+  puts "Requires TCL 8.6 or later"
+  return
+}
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix zipfile2
+
+ifcapable !vtab {
+  finish_test; return
+}
+if {[catch {load_static_extension db zipfile} error]} {
+  puts "Skipping zipfile2 tests, hit load error: $error"
+  finish_test; return
+}
+
+proc blobliteral {str} {
+  set concat [string map {" " "" "\n" ""} $str]
+  return "X'$concat'"
+}
+
+proc blob {str} {
+  binary decode hex $str
+}
+
+proc findall {needle haystack} {
+  set L [list]
+  set start 0
+  while { [set idx [string first $needle $haystack $start]]>=0 } {
+    lappend L $idx
+    set start [expr $idx+1]
+  }
+  set L
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE aaa USING zipfile('testzip');
+  CREATE VIRTUAL TABLE bbb USING zipfile("testzip");
+  CREATE VIRTUAL TABLE ccc USING zipfile(`testzip`);
+  CREATE VIRTUAL TABLE ddd USING zipfile([testzip]);
+  CREATE VIRTUAL TABLE eee USING zipfile(testzip);
+  CREATE VIRTUAL TABLE fff USING zipfile('test''zip');
+}
+
+do_test 2.0 {
+  forcedelete testdir
+  file mkdir testdir
+  execsql { CREATE VIRTUAL TABLE hhh USING zipfile('testdir') }
+  lindex [catchsql { 
+    SELECT * FROM hhh;
+    INSERT INTO hhh(name, data) VALUES('1.txt', 'file data');
+  }] 0 
+} 1
+
+
+set archive {
+  504B0304140000080000D4A52BEC09F3B6E0110000001100000005000900612E
+  747874555405000140420F00636F6E74656E7473206F6620612E747874504B03
+  04140000080000D4A52BECD98916A7110000001100000005000900622E747874
+  555405000140420F00636F6E74656E7473206F6620622E747874504B01021E03
+  140000080000D4A52BEC09F3B6E0110000001100000005000900000000000000
+  0000A48100000000612E747874555405000140420F00504B01021E0314000008
+  0000D4A52BECD98916A71100000011000000050009000000000000000000A481
+  3D000000622E747874555405000140420F00504B050600000000020002007800
+  00007A0000000000
+}
+
+if 0 {
+  # This test is broken - the archive generated is slightly different
+  # depending on the zlib version used.
+  do_execsql_test 3.1 {
+    WITH contents(name,mtime,data) AS (
+        VALUES('a.txt', 1000000, 'contents of a.txt') UNION ALL
+        VALUES('b.txt', 1000000, 'contents of b.txt')
+    ) SELECT quote( zipfile(name,NULL,mtime,data) ) FROM contents;
+  } [blobliteral $archive]
+}
+
+
+set blob [blob $archive]
+do_execsql_test 3.2 {
+  SELECT name,mtime,data FROM zipfile($blob)
+} {
+  a.txt 1000000 {contents of a.txt} 
+  b.txt 1000000 {contents of b.txt}
+}
+
+# Corrupt each of the 0x50 0x4B (ascii "PK") headers in the file
+# Test that in each case this causes an error.
+#
+set L [findall 504B $archive]
+for {set i 0} {$i < [llength $L]} {incr i} {
+  set idx [lindex $L $i]
+  set a [string replace $archive $idx [expr $idx+3] 0000]
+  set blob [blob $a]
+  do_catchsql_test 3.3.$i {
+    SELECT name,mtime,data FROM zipfile($blob)
+  } {/1 .*/}
+}
+
+# Change the "extra info id" for all extended-timestamp fields.
+set L [findall 5554 $archive]
+for {set i 0} {$i < [llength $L]} {incr i} {
+  set idx [lindex $L $i]
+  set a [string replace $archive $idx [expr $idx+3] 1234]
+  set blob [blob $a]
+  do_execsql_test 3.4.$i {
+    SELECT name,data FROM zipfile($blob)
+  } {
+    a.txt {contents of a.txt} 
+    b.txt {contents of b.txt}
+  }
+}
+
+for {set i 0} {$i < [llength $L]} {incr i} {
+  set idx [lindex $L $i]
+  set a [string replace $archive [expr $idx+8] [expr $idx+9] 00]
+  set blob [blob $a]
+  do_execsql_test 3.5.$i {
+    SELECT name,data FROM zipfile($blob)
+  } {
+    a.txt {contents of a.txt} 
+    b.txt {contents of b.txt}
+  }
+}
+
+# set blob [db one {
+#   WITH contents(name,mtime,data) AS (
+#     VALUES('a.txt', 1000000, 'aaaaaaaaaaaaaaaaaaaaaaa')
+#   ) SELECT quote( zipfile(name,NULL,mtime,data) ) FROM contents;
+# }]
+# set blob [string range $blob 2 end]
+# set blob [string range $blob 0 end-1]
+# while {[string length $blob]>0} {
+#   puts [string range $blob 0 63]
+#   set blob [string range $blob 64 end]
+# }
+# exit
+
+set archive2 {
+  504B0304140000080800D4A52BEC08F54C6E050000001700000005000900612E
+  747874555405000140420F004B4CC40A00504B01021E03140000080800D4A52B
+  EC08F54C6E0500000017000000050009000000000000000000A4810000000061
+  2E747874555405000140420F00504B050600000000010001003C000000310000
+  000000
+}
+set blob [blob $archive2]
+do_execsql_test 4.0 {
+  SELECT name,mtime,data,method FROM zipfile($blob)
+} {
+  a.txt 1000000 aaaaaaaaaaaaaaaaaaaaaaa 8
+}
+
+set L [findall 17000000 $archive2]
+set a $archive2
+foreach i $L { set a [string replace $a $i [expr $i+7] 16000000] }
+set blob [blob $a]
+do_catchsql_test 4.1 {
+  SELECT name,mtime,data,method FROM zipfile($blob)
+} {1 {inflate() failed (0)}}
+
+# Check the response to an unknown compression method (set data to NULL).
+set blob [blob [string map {0800 0900} $archive2]]
+do_execsql_test 4.2 {
+  SELECT name,mtime,data IS NULL,method FROM zipfile($blob)
+} {a.txt 1000000 1 9}
+
+# Corrupt the EOCDS signature bytes in various ways.
+foreach {tn sub} {
+  1 {504B0500}
+  2 {504B0006}
+  3 {50000506}
+  4 {004B0506}
+} {
+  set blob [blob [string map [list 504B0506 $sub] $archive2]]
+  do_catchsql_test 4.3.$tn {
+    SELECT * FROM zipfile($blob)
+  } {1 {cannot find end of central directory record}}
+}
+
+#-------------------------------------------------------------------------
+# Test that a zero-length file with a '/' at the end is treated as
+# a directory (data IS NULL). Even if the mode doesn't indicate
+# that it is a directory.
+
+do_test 5.0 {
+  set blob [db one {
+    WITH c(n, d) AS (
+      SELECT 'notadir', ''
+    )
+    SELECT zipfile(n, d) FROM c
+ }]
+
+  set hex [binary encode hex $blob]
+  set hex [string map {6e6f7461646972 6e6f746164692f} $hex] 
+  set blob2 [binary decode hex $hex]
+
+  execsql { SELECT name, data IS NULL FROM zipfile($blob2) }
+} {notadi/ 1}
+
+#-------------------------------------------------------------------------
+# Test that duplicate entries may not be created using UPDATE
+# statements.
+#
+forcedelete test.zip
+do_execsql_test 6.0 {
+  CREATE VIRTUAL TABLE temp.zip USING zipfile('test.zip'); 
+  INSERT INTO temp.zip (name,data) VALUES ('test1','test'); 
+  INSERT INTO temp.zip (name,data) VALUES ('test2','test'); 
+}
+do_catchsql_test 6.1 {
+  UPDATE temp.zip SET name='test1' WHERE name='test2'
+} {1 {duplicate name: "test1"}}
+
+forcedelete test.zip
+do_catchsql_test 6.2 {
+  DROP TABLE zip;
+  CREATE VIRTUAL TABLE temp.zip USING zipfile('test.zip'); 
+  INSERT INTO temp.zip (name,data) VALUES ('test','test'); 
+  UPDATE  temp.zip set name=name||'new' where name='test'; 
+  INSERT INTO temp.zip (name,data) VALUES ('test','test'); 
+  UPDATE  temp.zip set name=name||'new' where name='test'; 
+} {1 {duplicate name: "testnew"}}
+
+forcedelete test.zip
+do_execsql_test 6.3 {
+  INSERT INTO temp.zip (name,data) VALUES ('test1','test'); 
+  INSERT INTO temp.zip (name,data) VALUES ('test2','test'); 
+  UPDATE OR REPLACE zip SET name='test2' WHERE name='test1';
+  SELECT name FROM zip;
+} {test2}
+
+finish_test
diff --git a/test/zipfilefault.test b/test/zipfilefault.test
new file mode 100644
index 0000000000000000000000000000000000000000..f5e2cd5cb646485ae6aba66831015fe1c09f4f6c
--- /dev/null
+++ b/test/zipfilefault.test
@@ -0,0 +1,166 @@
+# 2018 January 30
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+set testprefix zipfilefault
+
+ifcapable !vtab {
+  finish_test; return
+}
+if {[catch {load_static_extension db zipfile} error]} {
+  puts "Skipping zipfile2 tests, hit load error: $error"
+  finish_test; return
+}
+
+faultsim_save_and_close
+do_faultsim_test 1 -prep {
+  faultsim_restore_and_reopen
+  load_static_extension db zipfile
+  execsql { DROP TABLE IF EXISTS aaa }
+} -body {
+  execsql { CREATE VIRTUAL TABLE aaa USING zipfile('test.zip') }
+} -test {
+  faultsim_test_result {0 {}} 
+}
+
+forcedelete test.zip
+sqlite3 db test.db
+load_static_extension db zipfile
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE setup USING zipfile('test.zip');
+  INSERT INTO setup(name, data) VALUES('a.txt', '1234567890');
+}
+
+do_faultsim_test 2.1 -faults oom* -body {
+  execsql { SELECT name,data FROM zipfile('test.zip') }
+} -test {
+  faultsim_test_result {0 {a.txt 1234567890}} 
+}
+ifcapable json1 {
+  do_faultsim_test 2.2 -faults oom* -body {
+    execsql { 
+      SELECT json_extract( zipfile_cds(z), '$.version-made-by' ) 
+      FROM zipfile('test.zip')
+    }
+  } -test {
+    faultsim_test_result {0 798}
+  }
+}
+
+forcedelete test.zip
+reset_db
+load_static_extension db zipfile
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE setup USING zipfile('test.zip');
+  INSERT INTO setup(name, data) VALUES('a.txt', 'aaaaaaaaaaaaaaaaaaaaaaaaaaaa');
+}
+
+do_faultsim_test 3 -faults oom* -body {
+  execsql { SELECT name,data FROM zipfile('test.zip') }
+} -test {
+  faultsim_test_result {0 {a.txt aaaaaaaaaaaaaaaaaaaaaaaaaaaa}} 
+}
+
+do_faultsim_test 4 -faults oom* -body {
+  execsql {
+    WITH c(n, d) AS (
+      SELECT 1, 'aaaaaaaaaaabbbbbbbbbbaaaaaaaaaabbbbbbbbbb'
+    )
+    SELECT name, data FROM zipfile(
+      (SELECT zipfile(n, d) FROM c)
+    );
+  }
+} -test {
+  faultsim_test_result {0 {1 aaaaaaaaaaabbbbbbbbbbaaaaaaaaaabbbbbbbbbb}}
+}
+
+reset_db
+sqlite3_db_config_lookaside db 0 0 0
+load_static_extension db zipfile
+
+do_execsql_test 5.0 {
+  CREATE VIRTUAL TABLE setup USING zipfile('test.zip') 
+}
+
+do_faultsim_test 5.1 -faults oom* -prep {
+  forcedelete test.zip
+} -body {
+  execsql {
+    INSERT INTO setup(name, data) 
+    VALUES('a.txt', 'aaaaaaaaaaaaaaaaaaaaaaaaaaaa');
+  }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+do_faultsim_test 5.2 -faults oom* -prep {
+  forcedelete test.zip
+} -body {
+  execsql {
+    INSERT INTO setup(name, data) VALUES('dir', NULL)
+  }
+} -test {
+  faultsim_test_result {0 {}}
+}
+
+do_faultsim_test 5.3 -faults oom* -prep {
+  forcedelete test.zip
+  execsql { 
+    DROP TABLE IF EXISTS setup;
+    BEGIN;
+      CREATE VIRTUAL TABLE setup USING zipfile('test.zip') 
+  }
+} -body {
+  execsql {
+    INSERT INTO setup(name, data) VALUES('dir', NULL)
+  }
+} -test {
+  catchsql { COMMIT }
+  faultsim_test_result {0 {}}
+}
+
+do_faultsim_test 6.1 -faults oom* -body {
+  execsql {
+    WITH c(n, d) AS (
+      VALUES('a.txt', '1234567890') UNION ALL
+      VALUES('dir', NULL)
+    )
+    SELECT zipfile(n, d) IS NULL FROM c;
+  }
+} -test {
+  faultsim_test_result {0 0}
+}
+
+set big [string repeat 0123456789 1000]
+do_faultsim_test 6.2 -faults oom* -body {
+  execsql {
+    WITH c(n, d) AS (
+      VALUES('a.txt', $big)
+    )
+    SELECT zipfile(n, NULL, NULL, d, 0) IS NULL FROM c;
+  }
+} -test {
+  faultsim_test_result {0 0}
+}
+
+do_faultsim_test 7.0 -faults oom* -prep {
+  catch { db close }
+  sqlite3 db ""
+} -body {
+  load_static_extension db zipfile
+} -test {
+}
+
+
+finish_test